// Generated by DDC, the Dart Development Compiler (to JavaScript).
// Version: 3.5.3 (stable) (Wed Sep 11 16:22:47 2024 +0000) on "linux_x64"
// Module: dart_sdk
// Flags: soundNullSafety(false), enableAsserts(true)
dart_library.library('dart_sdk', null, /* Imports */[
], (function load__dart_sdk(exports) {
  'use strict';
  const _library = Object.create(null);
  const dart = Object.create(_library);
  dart.library = _library;
  var _ddc_only = Object.create(dart.library);
  var _js_shared_embedded_names = Object.create(dart.library);
  var _recipe_syntax = Object.create(dart.library);
  var dart_rti = Object.create(dart.library);
  var _debugger = Object.create(dart.library);
  var _foreign_helper = Object.create(dart.library);
  var _interceptors = Object.create(dart.library);
  var _internal = Object.create(dart.library);
  var _isolate_helper = Object.create(dart.library);
  var _js_annotations = Object.create(dart.library);
  var _js_helper = Object.create(dart.library);
  var _js_names = Object.create(dart.library);
  var _js_primitives = Object.create(dart.library);
  var _js_types = Object.create(dart.library);
  var _metadata = Object.create(dart.library);
  var _native_typed_data = Object.create(dart.library);
  var async = Object.create(dart.library);
  var collection = Object.create(dart.library);
  var convert = Object.create(dart.library);
  var developer = Object.create(dart.library);
  var io = Object.create(dart.library);
  var isolate = Object.create(dart.library);
  var js = Object.create(dart.library);
  var js_interop = Object.create(dart.library);
  var js_interop_unsafe = Object.create(dart.library);
  var js_util = Object.create(dart.library);
  var math = Object.create(dart.library);
  var typed_data = Object.create(dart.library);
  var indexed_db = Object.create(dart.library);
  var html$ = Object.create(dart.library);
  var html_common = Object.create(dart.library);
  var svg$ = Object.create(dart.library);
  var web_audio = Object.create(dart.library);
  var web_gl = Object.create(dart.library);
  var core = Object.create(dart.library);
  var ui = Object.create(dart.library);
  var ui_web = Object.create(dart.library);
  var _engine = Object.create(dart.library);
  var _skwasm_stub = Object.create(dart.library);
  var _web_unicode = Object.create(dart.library);
  var _web_locale_keymap = Object.create(dart.library);
  var _http = Object.create(dart.library);
  var _web_test_fonts = Object.create(dart.library);
  var dartx = Object.create(dart.library);
  const _privateNames = Symbol("_privateNames");
  dart.privateName = function(library, name) {
    let names = library[_privateNames];
    if (names == null) names = library[_privateNames] = new Map();
    let symbol = names.get(name);
    if (symbol == null) names.set(name, symbol = Symbol(name));
    return symbol;
  };
  var $hashCode = dartx.hashCode = Symbol("dartx.hashCode");
  var $add = dartx.add = Symbol("dartx.add");
  var $split = dartx.split = Symbol("dartx.split");
  var $first = dartx.first = Symbol("dartx.first");
  var $_set = dartx._set = Symbol("dartx._set");
  var $length = dartx.length = Symbol("dartx.length");
  var $sort = dartx.sort = Symbol("dartx.sort");
  var $contains = dartx.contains = Symbol("dartx.contains");
  var $toList = dartx.toList = Symbol("dartx.toList");
  var $keys = dartx.keys = Symbol("dartx.keys");
  var $values = dartx.values = Symbol("dartx.values");
  var $skip = dartx.skip = Symbol("dartx.skip");
  var $take = dartx.take = Symbol("dartx.take");
  var $entries = dartx.entries = Symbol("dartx.entries");
  var $last = dartx.last = Symbol("dartx.last");
  var $startsWith = dartx.startsWith = Symbol("dartx.startsWith");
  var $indexOf = dartx.indexOf = Symbol("dartx.indexOf");
  var $substring = dartx.substring = Symbol("dartx.substring");
  var $where = dartx.where = Symbol("dartx.where");
  var $isNotEmpty = dartx.isNotEmpty = Symbol("dartx.isNotEmpty");
  var $_equals = dartx._equals = Symbol("dartx._equals");
  var $toString = dartx.toString = Symbol("dartx.toString");
  var $noSuchMethod = dartx.noSuchMethod = Symbol("dartx.noSuchMethod");
  var $runtimeType = dartx.runtimeType = Symbol("dartx.runtimeType");
  var $isEmpty = dartx.isEmpty = Symbol("dartx.isEmpty");
  var $cast = dartx.cast = Symbol("dartx.cast");
  var $addAll = dartx.addAll = Symbol("dartx.addAll");
  var $_get = dartx._get = Symbol("dartx._get");
  var $clear = dartx.clear = Symbol("dartx.clear");
  var $join = dartx.join = Symbol("dartx.join");
  var $stackTrace = dartx.stackTrace = Symbol("dartx.stackTrace");
  var $dartStack = dartx.dartStack = Symbol("dartx.dartStack");
  var $map = dartx.map = Symbol("dartx.map");
  var $arrayRti = dartx.arrayRti = Symbol("dartx.arrayRti");
  var $truncate = dartx.truncate = Symbol("dartx.truncate");
  var $toInt = dartx.toInt = Symbol("dartx.toInt");
  var $asMap = dartx.asMap = Symbol("dartx.asMap");
  var $forEach = dartx.forEach = Symbol("dartx.forEach");
  var $elementAt = dartx.elementAt = Symbol("dartx.elementAt");
  var $firstWhere = dartx.firstWhere = Symbol("dartx.firstWhere");
  var $replaceFirst = dartx.replaceFirst = Symbol("dartx.replaceFirst");
  var $compareTo = dartx.compareTo = Symbol("dartx.compareTo");
  var $replaceAll = dartx.replaceAll = Symbol("dartx.replaceAll");
  var $putIfAbsent = dartx.putIfAbsent = Symbol("dartx.putIfAbsent");
  var $remove = dartx.remove = Symbol("dartx.remove");
  var $round = dartx.round = Symbol("dartx.round");
  var $bitAnd = dartx['&'] = Symbol("dartx.&");
  var $bitOr = dartx['|'] = Symbol("dartx.|");
  var $bitXor = dartx['^'] = Symbol("dartx.^");
  var $sublist = dartx.sublist = Symbol("dartx.sublist");
  var $invalidValue = dartx.invalidValue = Symbol("dartx.invalidValue");
  var $name = dartx.name = Symbol("dartx.name");
  var $message = dartx.message = Symbol("dartx.message");
  var $checkMutable = dartx.checkMutable = Symbol("dartx.checkMutable");
  var $checkGrowable = dartx.checkGrowable = Symbol("dartx.checkGrowable");
  var $removeAt = dartx.removeAt = Symbol("dartx.removeAt");
  var $insert = dartx.insert = Symbol("dartx.insert");
  var $setRange = dartx.setRange = Symbol("dartx.setRange");
  var $insertAll = dartx.insertAll = Symbol("dartx.insertAll");
  var $setAll = dartx.setAll = Symbol("dartx.setAll");
  var $removeLast = dartx.removeLast = Symbol("dartx.removeLast");
  var $removeWhere = dartx.removeWhere = Symbol("dartx.removeWhere");
  var $retainWhere = dartx.retainWhere = Symbol("dartx.retainWhere");
  var $expand = dartx.expand = Symbol("dartx.expand");
  var $takeWhile = dartx.takeWhile = Symbol("dartx.takeWhile");
  var $skipWhile = dartx.skipWhile = Symbol("dartx.skipWhile");
  var $reduce = dartx.reduce = Symbol("dartx.reduce");
  var $fold = dartx.fold = Symbol("dartx.fold");
  var $lastWhere = dartx.lastWhere = Symbol("dartx.lastWhere");
  var $singleWhere = dartx.singleWhere = Symbol("dartx.singleWhere");
  var $getRange = dartx.getRange = Symbol("dartx.getRange");
  var $single = dartx.single = Symbol("dartx.single");
  var $removeRange = dartx.removeRange = Symbol("dartx.removeRange");
  var $fillRange = dartx.fillRange = Symbol("dartx.fillRange");
  var $replaceRange = dartx.replaceRange = Symbol("dartx.replaceRange");
  var $any = dartx.any = Symbol("dartx.any");
  var $every = dartx.every = Symbol("dartx.every");
  var $reversed = dartx.reversed = Symbol("dartx.reversed");
  var $shuffle = dartx.shuffle = Symbol("dartx.shuffle");
  var $lastIndexOf = dartx.lastIndexOf = Symbol("dartx.lastIndexOf");
  var $toSet = dartx.toSet = Symbol("dartx.toSet");
  var $iterator = dartx.iterator = Symbol("dartx.iterator");
  var $followedBy = dartx.followedBy = Symbol("dartx.followedBy");
  var $whereType = dartx.whereType = Symbol("dartx.whereType");
  var $plus = dartx['+'] = Symbol("dartx.+");
  var $indexWhere = dartx.indexWhere = Symbol("dartx.indexWhere");
  var $lastIndexWhere = dartx.lastIndexWhere = Symbol("dartx.lastIndexWhere");
  var $isNegative = dartx.isNegative = Symbol("dartx.isNegative");
  var $isNaN = dartx.isNaN = Symbol("dartx.isNaN");
  var $isInfinite = dartx.isInfinite = Symbol("dartx.isInfinite");
  var $isFinite = dartx.isFinite = Symbol("dartx.isFinite");
  var $remainder = dartx.remainder = Symbol("dartx.remainder");
  var $abs = dartx.abs = Symbol("dartx.abs");
  var $sign = dartx.sign = Symbol("dartx.sign");
  var $truncateToDouble = dartx.truncateToDouble = Symbol("dartx.truncateToDouble");
  var $ceilToDouble = dartx.ceilToDouble = Symbol("dartx.ceilToDouble");
  var $ceil = dartx.ceil = Symbol("dartx.ceil");
  var $floorToDouble = dartx.floorToDouble = Symbol("dartx.floorToDouble");
  var $floor = dartx.floor = Symbol("dartx.floor");
  var $roundToDouble = dartx.roundToDouble = Symbol("dartx.roundToDouble");
  var $clamp = dartx.clamp = Symbol("dartx.clamp");
  var $toDouble = dartx.toDouble = Symbol("dartx.toDouble");
  var $toStringAsFixed = dartx.toStringAsFixed = Symbol("dartx.toStringAsFixed");
  var $toStringAsExponential = dartx.toStringAsExponential = Symbol("dartx.toStringAsExponential");
  var $toStringAsPrecision = dartx.toStringAsPrecision = Symbol("dartx.toStringAsPrecision");
  var $codeUnitAt = dartx.codeUnitAt = Symbol("dartx.codeUnitAt");
  var $toRadixString = dartx.toRadixString = Symbol("dartx.toRadixString");
  var $times = dartx['*'] = Symbol("dartx.*");
  var $_negate = dartx._negate = Symbol("dartx._negate");
  var $minus = dartx['-'] = Symbol("dartx.-");
  var $divide = dartx['/'] = Symbol("dartx./");
  var $modulo = dartx['%'] = Symbol("dartx.%");
  var $floorDivide = dartx['~/'] = Symbol("dartx.~/");
  var $leftShift = dartx['<<'] = Symbol("dartx.<<");
  var $rightShift = dartx['>>'] = Symbol("dartx.>>");
  var $tripleShift = dartx['>>>'] = Symbol("dartx.>>>");
  var $lessThan = dartx['<'] = Symbol("dartx.<");
  var $greaterThan = dartx['>'] = Symbol("dartx.>");
  var $lessOrEquals = dartx['<='] = Symbol("dartx.<=");
  var $greaterOrEquals = dartx['>='] = Symbol("dartx.>=");
  var $isEven = dartx.isEven = Symbol("dartx.isEven");
  var $isOdd = dartx.isOdd = Symbol("dartx.isOdd");
  var $toUnsigned = dartx.toUnsigned = Symbol("dartx.toUnsigned");
  var $toSigned = dartx.toSigned = Symbol("dartx.toSigned");
  var $bitLength = dartx.bitLength = Symbol("dartx.bitLength");
  var $modPow = dartx.modPow = Symbol("dartx.modPow");
  var $modInverse = dartx.modInverse = Symbol("dartx.modInverse");
  var $gcd = dartx.gcd = Symbol("dartx.gcd");
  var $bitNot = dartx['~'] = Symbol("dartx.~");
  var $allMatches = dartx.allMatches = Symbol("dartx.allMatches");
  var $matchAsPrefix = dartx.matchAsPrefix = Symbol("dartx.matchAsPrefix");
  var $endsWith = dartx.endsWith = Symbol("dartx.endsWith");
  var $splitMapJoin = dartx.splitMapJoin = Symbol("dartx.splitMapJoin");
  var $replaceAllMapped = dartx.replaceAllMapped = Symbol("dartx.replaceAllMapped");
  var $replaceFirstMapped = dartx.replaceFirstMapped = Symbol("dartx.replaceFirstMapped");
  var $toLowerCase = dartx.toLowerCase = Symbol("dartx.toLowerCase");
  var $toUpperCase = dartx.toUpperCase = Symbol("dartx.toUpperCase");
  var $trim = dartx.trim = Symbol("dartx.trim");
  var $trimLeft = dartx.trimLeft = Symbol("dartx.trimLeft");
  var $trimRight = dartx.trimRight = Symbol("dartx.trimRight");
  var $padLeft = dartx.padLeft = Symbol("dartx.padLeft");
  var $padRight = dartx.padRight = Symbol("dartx.padRight");
  var $codeUnits = dartx.codeUnits = Symbol("dartx.codeUnits");
  var $runes = dartx.runes = Symbol("dartx.runes");
  var $buffer = dartx.buffer = Symbol("dartx.buffer");
  var $offsetInBytes = dartx.offsetInBytes = Symbol("dartx.offsetInBytes");
  var $containsValue = dartx.containsValue = Symbol("dartx.containsValue");
  var $containsKey = dartx.containsKey = Symbol("dartx.containsKey");
  var $update = dartx.update = Symbol("dartx.update");
  var $updateAll = dartx.updateAll = Symbol("dartx.updateAll");
  var $addEntries = dartx.addEntries = Symbol("dartx.addEntries");
  var $lengthInBytes = dartx.lengthInBytes = Symbol("dartx.lengthInBytes");
  var $asUint8List = dartx.asUint8List = Symbol("dartx.asUint8List");
  var $asInt8List = dartx.asInt8List = Symbol("dartx.asInt8List");
  var $asUint8ClampedList = dartx.asUint8ClampedList = Symbol("dartx.asUint8ClampedList");
  var $asUint16List = dartx.asUint16List = Symbol("dartx.asUint16List");
  var $asInt16List = dartx.asInt16List = Symbol("dartx.asInt16List");
  var $asUint32List = dartx.asUint32List = Symbol("dartx.asUint32List");
  var $asInt32List = dartx.asInt32List = Symbol("dartx.asInt32List");
  var $asUint64List = dartx.asUint64List = Symbol("dartx.asUint64List");
  var $asInt64List = dartx.asInt64List = Symbol("dartx.asInt64List");
  var $asInt32x4List = dartx.asInt32x4List = Symbol("dartx.asInt32x4List");
  var $asFloat32List = dartx.asFloat32List = Symbol("dartx.asFloat32List");
  var $asFloat64List = dartx.asFloat64List = Symbol("dartx.asFloat64List");
  var $asFloat32x4List = dartx.asFloat32x4List = Symbol("dartx.asFloat32x4List");
  var $asFloat64x2List = dartx.asFloat64x2List = Symbol("dartx.asFloat64x2List");
  var $asByteData = dartx.asByteData = Symbol("dartx.asByteData");
  var $elementSizeInBytes = dartx.elementSizeInBytes = Symbol("dartx.elementSizeInBytes");
  var $asUnmodifiableView = dartx.asUnmodifiableView = Symbol("dartx.asUnmodifiableView");
  var $getFloat32 = dartx.getFloat32 = Symbol("dartx.getFloat32");
  var $getFloat64 = dartx.getFloat64 = Symbol("dartx.getFloat64");
  var $getInt16 = dartx.getInt16 = Symbol("dartx.getInt16");
  var $getInt32 = dartx.getInt32 = Symbol("dartx.getInt32");
  var $getInt64 = dartx.getInt64 = Symbol("dartx.getInt64");
  var $getInt8 = dartx.getInt8 = Symbol("dartx.getInt8");
  var $getUint16 = dartx.getUint16 = Symbol("dartx.getUint16");
  var $getUint32 = dartx.getUint32 = Symbol("dartx.getUint32");
  var $getUint64 = dartx.getUint64 = Symbol("dartx.getUint64");
  var $getUint8 = dartx.getUint8 = Symbol("dartx.getUint8");
  var $setFloat32 = dartx.setFloat32 = Symbol("dartx.setFloat32");
  var $setFloat64 = dartx.setFloat64 = Symbol("dartx.setFloat64");
  var $setInt16 = dartx.setInt16 = Symbol("dartx.setInt16");
  var $setInt32 = dartx.setInt32 = Symbol("dartx.setInt32");
  var $setInt64 = dartx.setInt64 = Symbol("dartx.setInt64");
  var $setInt8 = dartx.setInt8 = Symbol("dartx.setInt8");
  var $setUint16 = dartx.setUint16 = Symbol("dartx.setUint16");
  var $setUint32 = dartx.setUint32 = Symbol("dartx.setUint32");
  var $setUint64 = dartx.setUint64 = Symbol("dartx.setUint64");
  var $setUint8 = dartx.setUint8 = Symbol("dartx.setUint8");
  var $left = dartx.left = Symbol("dartx.left");
  var $width = dartx.width = Symbol("dartx.width");
  var $top = dartx.top = Symbol("dartx.top");
  var $height = dartx.height = Symbol("dartx.height");
  var $right = dartx.right = Symbol("dartx.right");
  var $bottom = dartx.bottom = Symbol("dartx.bottom");
  var $intersection = dartx.intersection = Symbol("dartx.intersection");
  var $intersects = dartx.intersects = Symbol("dartx.intersects");
  var $boundingBox = dartx.boundingBox = Symbol("dartx.boundingBox");
  var $containsRectangle = dartx.containsRectangle = Symbol("dartx.containsRectangle");
  var $containsPoint = dartx.containsPoint = Symbol("dartx.containsPoint");
  var $topLeft = dartx.topLeft = Symbol("dartx.topLeft");
  var $topRight = dartx.topRight = Symbol("dartx.topRight");
  var $bottomRight = dartx.bottomRight = Symbol("dartx.bottomRight");
  var $bottomLeft = dartx.bottomLeft = Symbol("dartx.bottomLeft");
  var T$ = {
    dynamic: () => (T$.dynamic = dart.constFn(dart_rti.findType("@")))(),
    Object: () => (T$.Object = dart.constFn(dart_rti.findType("core|Object")))(),
    String: () => (T$.String = dart.constFn(dart_rti.findType("core|String")))(),
    ObjectN: () => (T$.ObjectN = dart.constFn(dart_rti.findType("core|Object?")))(),
    ListN: () => (T$.ListN = dart.constFn(dart_rti.findType("core|List<@>?")))(),
    StringN: () => (T$.StringN = dart.constFn(dart_rti.findType("core|String?")))(),
    List: () => (T$.List = dart.constFn(dart_rti.findType("core|List<@>")))(),
    Map: () => (T$.Map = dart.constFn(dart_rti.findType("core|Map<@,@>")))(),
    Set: () => (T$.Set = dart.constFn(dart_rti.findType("core|Set<@>")))(),
    Function: () => (T$.Function = dart.constFn(dart_rti.findType("core|Function")))(),
    RecordImpl: () => (T$.RecordImpl = dart.constFn(dart_rti.findType("_runtime|RecordImpl")))(),
    int: () => (T$.int = dart.constFn(dart_rti.findType("core|int")))(),
    Type: () => (T$.Type = dart.constFn(dart_rti.findType("core|Type")))(),
    NativeError: () => (T$.NativeError = dart.constFn(dart_rti.findType("_interceptors|NativeError")))(),
    JavaScriptObject: () => (T$.JavaScriptObject = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    Shape: () => (T$.Shape = dart.constFn(dart_rti.findType("_runtime|Shape")))(),
    _StackTrace: () => (T$._StackTrace = dart.constFn(dart_rti.findType("_runtime|_StackTrace")))(),
    ListOfObjectN: () => (T$.ListOfObjectN = dart.constFn(dart_rti.findType("core|List<core|Object?>")))(),
    boolN: () => (T$.boolN = dart.constFn(dart_rti.findType("core|bool?")))(),
    VoidToString: () => (T$.VoidToString = dart.constFn(dart_rti.findType("core|String()")))(),
    InvocationTodynamic: () => (T$.InvocationTodynamic = dart.constFn(dart_rti.findType("@(core|Invocation)")))(),
    Null: () => (T$.Null = dart.constFn(dart_rti.findType("core|Null")))(),
    void: () => (T$.void = dart.constFn(dart_rti.findType("~")))(),
    LegacyJavaScriptObject: () => (T$.LegacyJavaScriptObject = dart.constFn(dart_rti.findType("_interceptors|LegacyJavaScriptObject")))(),
    JavaScriptFunction: () => (T$.JavaScriptFunction = dart.constFn(dart_rti.findType("_interceptors|JavaScriptFunction")))(),
    double: () => (T$.double = dart.constFn(dart_rti.findType("core|double")))(),
    bool: () => (T$.bool = dart.constFn(dart_rti.findType("core|bool")))(),
    JavaScriptSymbol: () => (T$.JavaScriptSymbol = dart.constFn(dart_rti.findType("_interceptors|JavaScriptSymbol")))(),
    JavaScriptBigInt: () => (T$.JavaScriptBigInt = dart.constFn(dart_rti.findType("_interceptors|JavaScriptBigInt")))(),
    ListNOfString: () => (T$.ListNOfString = dart.constFn(dart_rti.findType("core|List<core|String>?")))(),
    ObjectTobool: () => (T$.ObjectTobool = dart.constFn(dart_rti.findType("core|bool(core|Object)")))(),
    ObjectNAndObjectNAndObjectN__Toint: () => (T$.ObjectNAndObjectNAndObjectN__Toint = dart.constFn(dart_rti.findType("core|int(core|Object?,core|Object?[core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?,core|Object?])")))(),
    IterableOfObjectNToint: () => (T$.IterableOfObjectNToint = dart.constFn(dart_rti.findType("core|int(core|Iterable<core|Object?>)")))(),
    ObjectNTobool: () => (T$.ObjectNTobool = dart.constFn(dart_rti.findType("core|bool(core|Object?)")))(),
    boolToString: () => (T$.boolToString = dart.constFn(dart_rti.findType("core|String(core|bool)")))(),
    intN: () => (T$.intN = dart.constFn(dart_rti.findType("core|int?")))(),
    StackTrace: () => (T$.StackTrace = dart.constFn(dart_rti.findType("core|StackTrace")))(),
    ObjectNToString: () => (T$.ObjectNToString = dart.constFn(dart_rti.findType("core|String(core|Object?)")))(),
    StringToString: () => (T$.StringToString = dart.constFn(dart_rti.findType("core|String(core|String)")))(),
    ObjectToString: () => (T$.ObjectToString = dart.constFn(dart_rti.findType("core|String(core|Object)")))(),
    StackTraceN: () => (T$.StackTraceN = dart.constFn(dart_rti.findType("core|StackTrace?")))(),
    ObjectAndStackTraceToNever: () => (T$.ObjectAndStackTraceToNever = dart.constFn(dart_rti.findType("0&(core|Object,core|StackTrace)")))(),
    SymbolL: () => (T$.SymbolL = dart.constFn(dart_rti.findType("core|Symbol*")))(),
    Symbol: () => (T$.Symbol = dart.constFn(dart_rti.findType("core|Symbol")))(),
    TypeL: () => (T$.TypeL = dart.constFn(dart_rti.findType("core|Type*")))(),
    SymbolAndIterableNOfObjectNAndMapNOfSymbol$ObjectNToInvocation: () => (T$.SymbolAndIterableNOfObjectNAndMapNOfSymbol$ObjectNToInvocation = dart.constFn(dart_rti.findType("core|Invocation(core|Symbol,core|Iterable<core|Object?>?[core|Map<core|Symbol,core|Object?>?])")))(),
    SymbolAndIterableNOfTypeAndIterableNOfObjectN__ToInvocation: () => (T$.SymbolAndIterableNOfTypeAndIterableNOfObjectN__ToInvocation = dart.constFn(dart_rti.findType("core|Invocation(core|Symbol,core|Iterable<core|Type>?,core|Iterable<core|Object?>?[core|Map<core|Symbol,core|Object?>?])")))(),
    SymbolToInvocation: () => (T$.SymbolToInvocation = dart.constFn(dart_rti.findType("core|Invocation(core|Symbol)")))(),
    SymbolAndObjectNToInvocation: () => (T$.SymbolAndObjectNToInvocation = dart.constFn(dart_rti.findType("core|Invocation(core|Symbol,core|Object?)")))(),
    ListOfType: () => (T$.ListOfType = dart.constFn(dart_rti.findType("core|List<core|Type>")))(),
    dynamicToMapOfSymbol$dynamic: () => (T$.dynamicToMapOfSymbol$dynamic = dart.constFn(dart_rti.findType("core|Map<core|Symbol,@>(@)")))(),
    MapOfSymbol$dynamic: () => (T$.MapOfSymbol$dynamic = dart.constFn(dart_rti.findType("core|Map<core|Symbol,@>")))(),
    ListOfJsGetName: () => (T$.ListOfJsGetName = dart.constFn(dart_rti.findType("core|List<_js_shared_embedded_names|JsGetName>")))(),
    JsGetName: () => (T$.JsGetName = dart.constFn(dart_rti.findType("_js_shared_embedded_names|JsGetName")))(),
    JsGetNameL: () => (T$.JsGetNameL = dart.constFn(dart_rti.findType("_js_shared_embedded_names|JsGetName*")))(),
    ListOfJsBuiltin: () => (T$.ListOfJsBuiltin = dart.constFn(dart_rti.findType("core|List<_js_shared_embedded_names|JsBuiltin>")))(),
    JsBuiltin: () => (T$.JsBuiltin = dart.constFn(dart_rti.findType("_js_shared_embedded_names|JsBuiltin")))(),
    JsBuiltinL: () => (T$.JsBuiltinL = dart.constFn(dart_rti.findType("_js_shared_embedded_names|JsBuiltin*")))(),
    StringAndintAndStringTovoid: () => (T$.StringAndintAndStringTovoid = dart.constFn(dart_rti.findType("~(core|String,core|int,core|String)")))(),
    intTobool: () => (T$.intTobool = dart.constFn(dart_rti.findType("core|bool(core|int)")))(),
    intToint: () => (T$.intToint = dart.constFn(dart_rti.findType("core|int(core|int)")))(),
    VoidTovoid: () => (T$.VoidTovoid = dart.constFn(dart_rti.findType("~()")))(),
    ObjectNAndStringToString: () => (T$.ObjectNAndStringToString = dart.constFn(dart_rti.findType("core|String(core|Object?,core|String)")))(),
    RtiAndObjectNTovoid: () => (T$.RtiAndObjectNTovoid = dart.constFn(dart_rti.findType("~(_rti|Rti,core|Object?)")))(),
    RtiAndObjectNToObjectN: () => (T$.RtiAndObjectNToObjectN = dart.constFn(dart_rti.findType("core|Object?(_rti|Rti,core|Object?)")))(),
    RtiAndObjectNTobool: () => (T$.RtiAndObjectNTobool = dart.constFn(dart_rti.findType("core|bool(_rti|Rti,core|Object?)")))(),
    ObjectNToRti: () => (T$.ObjectNToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?)")))(),
    RtiToObjectN: () => (T$.RtiToObjectN = dart.constFn(dart_rti.findType("core|Object?(_rti|Rti)")))(),
    RtiToRti: () => (T$.RtiToRti = dart.constFn(dart_rti.findType("_rti|Rti(_rti|Rti)")))(),
    ObjectNAndRtiToRti: () => (T$.ObjectNAndRtiToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti)")))(),
    RtiTo_TypeN: () => (T$.RtiTo_TypeN = dart.constFn(dart_rti.findType("_rti|_Type?(_rti|Rti)")))(),
    RtiAnd_TypeTovoid: () => (T$.RtiAnd_TypeTovoid = dart.constFn(dart_rti.findType("~(_rti|Rti,_rti|_Type)")))(),
    RtiToint: () => (T$.RtiToint = dart.constFn(dart_rti.findType("core|int(_rti|Rti)")))(),
    RtiAndintTovoid: () => (T$.RtiAndintTovoid = dart.constFn(dart_rti.findType("~(_rti|Rti,core|int)")))(),
    RtiTobool: () => (T$.RtiTobool = dart.constFn(dart_rti.findType("core|bool(_rti|Rti)")))(),
    RtiToString: () => (T$.RtiToString = dart.constFn(dart_rti.findType("core|String(_rti|Rti)")))(),
    RtiToJSArray: () => (T$.RtiToJSArray = dart.constFn(dart_rti.findType("_interceptors|JSArray<@>(_rti|Rti)")))(),
    RtiTo_FunctionParameters: () => (T$.RtiTo_FunctionParameters = dart.constFn(dart_rti.findType("_rti|_FunctionParameters(_rti|Rti)")))(),
    VoidToRti: () => (T$.VoidToRti = dart.constFn(dart_rti.findType("_rti|Rti()")))(),
    RtiAndStringTovoid: () => (T$.RtiAndStringTovoid = dart.constFn(dart_rti.findType("~(_rti|Rti,core|String)")))(),
    VoidTo_FunctionParameters: () => (T$.VoidTo_FunctionParameters = dart.constFn(dart_rti.findType("_rti|_FunctionParameters()")))(),
    _FunctionParametersToJSArray: () => (T$._FunctionParametersToJSArray = dart.constFn(dart_rti.findType("_interceptors|JSArray<@>(_rti|_FunctionParameters)")))(),
    _FunctionParametersAndObjectNTovoid: () => (T$._FunctionParametersAndObjectNTovoid = dart.constFn(dart_rti.findType("~(_rti|_FunctionParameters,core|Object?)")))(),
    Rti: () => (T$.Rti = dart.constFn(dart_rti.findType("_rti|Rti")))(),
    dynamicAndStringTo_TypeError: () => (T$.dynamicAndStringTo_TypeError = dart.constFn(dart_rti.findType("_rti|_TypeError(@,core|String)")))(),
    NeverL: () => (T$.NeverL = dart.constFn(dart_rti.findType("0&*")))(),
    ObjectL: () => (T$.ObjectL = dart.constFn(dart_rti.findType("core|Object*")))(),
    FutureNOfNull: () => (T$.FutureNOfNull = dart.constFn(dart_rti.findType("async|Future<core|Null>?")))(),
    VoidToObject: () => (T$.VoidToObject = dart.constFn(dart_rti.findType("core|Object()")))(),
    ObjectNToObject: () => (T$.ObjectNToObject = dart.constFn(dart_rti.findType("core|Object(core|Object?)")))(),
    ObjectNAndStringToObjectN: () => (T$.ObjectNAndStringToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Object?,core|String)")))(),
    ObjectNAndStringToRti: () => (T$.ObjectNAndStringToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,core|String)")))(),
    ObjectNAndObjectNTovoid: () => (T$.ObjectNAndObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|Object?)")))(),
    ObjectNToJSArray: () => (T$.ObjectNToJSArray = dart.constFn(dart_rti.findType("_interceptors|JSArray<@>(core|Object?)")))(),
    ObjectNAndStringAndboolToRti: () => (T$.ObjectNAndStringAndboolToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,core|String,core|bool)")))(),
    ObjectNAndRtiAndStringToRti: () => (T$.ObjectNAndRtiAndStringToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,core|String)")))(),
    ObjectNAndRtiAndRtiToRti: () => (T$.ObjectNAndRtiAndRtiToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,_rti|Rti)")))(),
    ObjectNAndObjectNAndString__ToRti: () => (T$.ObjectNAndObjectNAndString__ToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,core|Object?,core|String,core|bool)")))(),
    ObjectNAndStringAndRtiToRti: () => (T$.ObjectNAndStringAndRtiToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,core|String,_rti|Rti)")))(),
    StringAndStringToString: () => (T$.StringAndStringToString = dart.constFn(dart_rti.findType("core|String(core|String,core|String)")))(),
    StringAndStringAndStringToString: () => (T$.StringAndStringAndStringToString = dart.constFn(dart_rti.findType("core|String(core|String,core|String,core|String)")))(),
    StringAndStringAndString__ToString: () => (T$.StringAndStringAndString__ToString = dart.constFn(dart_rti.findType("core|String(core|String,core|String,core|String,core|String)")))(),
    StringAndStringAndString__ToString$1: () => (T$.StringAndStringAndString__ToString$1 = dart.constFn(dart_rti.findType("core|String(core|String,core|String,core|String,core|String,core|String)")))(),
    intToString: () => (T$.intToString = dart.constFn(dart_rti.findType("core|String(core|int)")))(),
    ObjectNAndintAndStringToRti: () => (T$.ObjectNAndintAndStringToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,core|int,core|String)")))(),
    ObjectNAndRtiAndboolToRti: () => (T$.ObjectNAndRtiAndboolToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,core|bool)")))(),
    ObjectNAndRtiAndString__ToRti: () => (T$.ObjectNAndRtiAndString__ToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,core|String,core|bool)")))(),
    ObjectNAndintToRti: () => (T$.ObjectNAndintToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,core|int)")))(),
    StringAndObjectNToString: () => (T$.StringAndObjectNToString = dart.constFn(dart_rti.findType("core|String(core|String,core|Object?)")))(),
    ObjectNAndStringAndObjectNToRti: () => (T$.ObjectNAndStringAndObjectNToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,core|String,core|Object?)")))(),
    ObjectNAndStringAndObjectN__ToRti: () => (T$.ObjectNAndStringAndObjectN__ToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,core|String,core|Object?,core|String)")))(),
    RtiAndObjectNToString: () => (T$.RtiAndObjectNToString = dart.constFn(dart_rti.findType("core|String(_rti|Rti,core|Object?)")))(),
    ObjectNAndRtiAndObjectNToRti: () => (T$.ObjectNAndRtiAndObjectNToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,core|Object?)")))(),
    ObjectNAndRtiAndObjectN__ToRti: () => (T$.ObjectNAndRtiAndObjectN__ToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,core|Object?,core|String)")))(),
    RtiAnd_FunctionParametersToString: () => (T$.RtiAnd_FunctionParametersToString = dart.constFn(dart_rti.findType("core|String(_rti|Rti,_rti|_FunctionParameters)")))(),
    _FunctionParametersToString: () => (T$._FunctionParametersToString = dart.constFn(dart_rti.findType("core|String(_rti|_FunctionParameters)")))(),
    ObjectNAndRtiAnd_FunctionParametersToRti: () => (T$.ObjectNAndRtiAnd_FunctionParametersToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,_rti|_FunctionParameters)")))(),
    ObjectNAndRtiAnd_FunctionParameters__ToRti: () => (T$.ObjectNAndRtiAnd_FunctionParameters__ToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,_rti|_FunctionParameters,core|String)")))(),
    ObjectNAndRtiAndObjectN__ToRti$1: () => (T$.ObjectNAndRtiAndObjectN__ToRti$1 = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,core|Object?,core|bool)")))(),
    ObjectNAndRtiAndObjectN__ToRti$2: () => (T$.ObjectNAndRtiAndObjectN__ToRti$2 = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,core|Object?,core|String,core|bool)")))(),
    ObjectNAndObjectNAndString__ToObject: () => (T$.ObjectNAndObjectNAndString__ToObject = dart.constFn(dart_rti.findType("core|Object(core|Object?,core|Object?,core|String,core|bool)")))(),
    ObjectNToRtiN: () => (T$.ObjectNToRtiN = dart.constFn(dart_rti.findType("_rti|Rti?(core|Object?)")))(),
    ObjectNToint: () => (T$.ObjectNToint = dart.constFn(dart_rti.findType("core|int(core|Object?)")))(),
    ObjectNAndintTovoid: () => (T$.ObjectNAndintTovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|int)")))(),
    StringAndintToint: () => (T$.StringAndintToint = dart.constFn(dart_rti.findType("core|int(core|String,core|int)")))(),
    ObjectNToObjectN: () => (T$.ObjectNToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Object?)")))(),
    intAndintAndString__Toint: () => (T$.intAndintAndString__Toint = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|String,core|Object?)")))(),
    ObjectNAndintAndString__Toint: () => (T$.ObjectNAndintAndString__Toint = dart.constFn(dart_rti.findType("core|int(core|Object?,core|int,core|String,core|Object?,core|bool)")))(),
    ObjectNAndintAndString__Toint$1: () => (T$.ObjectNAndintAndString__Toint$1 = dart.constFn(dart_rti.findType("core|int(core|Object?,core|int,core|String,core|Object?)")))(),
    ObjectNAndObjectNToJSArray: () => (T$.ObjectNAndObjectNToJSArray = dart.constFn(dart_rti.findType("_interceptors|JSArray<@>(core|Object?,core|Object?)")))(),
    ObjectNAndRtiNAndObjectNToRti: () => (T$.ObjectNAndRtiNAndObjectNToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti?,core|Object?)")))(),
    ObjectNAndRtiNAndObjectNTovoid: () => (T$.ObjectNAndRtiNAndObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Object?,_rti|Rti?,core|Object?)")))(),
    ObjectNAndRtiAndintToRti: () => (T$.ObjectNAndRtiAndintToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,_rti|Rti,core|int)")))(),
    ObjectNAndObjectNToRti: () => (T$.ObjectNAndObjectNToRti = dart.constFn(dart_rti.findType("_rti|Rti(core|Object?,core|Object?)")))(),
    ObjectNAndStringToStringN: () => (T$.ObjectNAndStringToStringN = dart.constFn(dart_rti.findType("core|String?(core|Object?,core|String)")))(),
    ObjectNAndStringToJSArrayN: () => (T$.ObjectNAndStringToJSArrayN = dart.constFn(dart_rti.findType("_interceptors|JSArray<@>?(core|Object?,core|String)")))(),
    RtiAndRtiToString: () => (T$.RtiAndRtiToString = dart.constFn(dart_rti.findType("core|String(_rti|Rti,_rti|Rti)")))(),
    ObjectNToNull: () => (T$.ObjectNToNull = dart.constFn(dart_rti.findType("core|Null(core|Object?)")))(),
    ObjectNTodouble: () => (T$.ObjectNTodouble = dart.constFn(dart_rti.findType("core|double(core|Object?)")))(),
    ObjectNTonum: () => (T$.ObjectNTonum = dart.constFn(dart_rti.findType("core|num(core|Object?)")))(),
    ObjectNTo_Type: () => (T$.ObjectNTo_Type = dart.constFn(dart_rti.findType("_rti|_Type(core|Object?)")))(),
    ObjectNAndObjectNTobool: () => (T$.ObjectNAndObjectNTobool = dart.constFn(dart_rti.findType("core|bool(core|Object?,core|Object?)")))(),
    intAndintTobool: () => (T$.intAndintTobool = dart.constFn(dart_rti.findType("core|bool(core|int,core|int)")))(),
    intToObjectN: () => (T$.intToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|int)")))(),
    ObjectNAndintToObjectN: () => (T$.ObjectNAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Object?,core|int)")))(),
    ObjectNAndintAndObjectNTovoid: () => (T$.ObjectNAndintAndObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|int,core|Object?)")))(),
    ObjectNAndintToJSArray: () => (T$.ObjectNAndintToJSArray = dart.constFn(dart_rti.findType("_interceptors|JSArray<@>(core|Object?,core|int)")))(),
    StringAndStringToJSArray: () => (T$.StringAndStringToJSArray = dart.constFn(dart_rti.findType("_interceptors|JSArray<@>(core|String,core|String)")))(),
    StringAndintAndintToString: () => (T$.StringAndintAndintToString = dart.constFn(dart_rti.findType("core|String(core|String,core|int,core|int)")))(),
    StringAndStringAndintToint: () => (T$.StringAndStringAndintToint = dart.constFn(dart_rti.findType("core|int(core|String,core|String,core|int)")))(),
    StringAndStringTobool: () => (T$.StringAndStringTobool = dart.constFn(dart_rti.findType("core|bool(core|String,core|String)")))(),
    ObjectNAndObjectNToObjectN: () => (T$.ObjectNAndObjectNToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Object?,core|Object?)")))(),
    ObjectNAndObjectNAndObjectNTovoid: () => (T$.ObjectNAndObjectNAndObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|Object?,core|Object?)")))(),
    Record: () => (T$.Record = dart.constFn(dart_rti.findType("core|Record")))(),
    TrustedGetRuntimeType: () => (T$.TrustedGetRuntimeType = dart.constFn(dart_rti.findType("_js_helper|TrustedGetRuntimeType")))(),
    RecOf: () => (T$.RecOf = dart.constFn(dart_rti.findType("+()")))(),
    num: () => (T$.num = dart.constFn(dart_rti.findType("core|num")))(),
    JSNull: () => (T$.JSNull = dart.constFn(dart_rti.findType("_interceptors|JSNull")))(),
    JsonMLConfig: () => (T$.JsonMLConfig = dart.constFn(dart_rti.findType("_debugger|JsonMLConfig")))(),
    dynamicAnddynamicTodynamic: () => (T$.dynamicAnddynamicTodynamic = dart.constFn(dart_rti.findType("@(@,@)")))(),
    dynamicAnddynamicAnddynamicTodynamic: () => (T$.dynamicAnddynamicAnddynamicTodynamic = dart.constFn(dart_rti.findType("@(@,@,@)")))(),
    NameValuePair: () => (T$.NameValuePair = dart.constFn(dart_rti.findType("_debugger|NameValuePair")))(),
    intAnddynamicTovoid: () => (T$.intAnddynamicTovoid = dart.constFn(dart_rti.findType("~(core|int,@)")))(),
    VoidToMapOfint$dynamic: () => (T$.VoidToMapOfint$dynamic = dart.constFn(dart_rti.findType("core|Map<core|int,@>()")))(),
    VoidToListOfNameValuePair: () => (T$.VoidToListOfNameValuePair = dart.constFn(dart_rti.findType("core|List<_debugger|NameValuePair>()")))(),
    Iterable: () => (T$.Iterable = dart.constFn(dart_rti.findType("core|Iterable<@>")))(),
    dynamicTodynamic: () => (T$.dynamicTodynamic = dart.constFn(dart_rti.findType("@(@)")))(),
    StringToJsonMLElement: () => (T$.StringToJsonMLElement = dart.constFn(dart_rti.findType("_debugger|JsonMLElement(core|String)")))(),
    dynamicToJsonMLElement: () => (T$.dynamicToJsonMLElement = dart.constFn(dart_rti.findType("_debugger|JsonMLElement(@)")))(),
    StringTovoid: () => (T$.StringTovoid = dart.constFn(dart_rti.findType("~(core|String)")))(),
    StringTodynamic: () => (T$.StringTodynamic = dart.constFn(dart_rti.findType("@(core|String)")))(),
    VoidTodynamic: () => (T$.VoidTodynamic = dart.constFn(dart_rti.findType("@()")))(),
    intTovoid: () => (T$.intTovoid = dart.constFn(dart_rti.findType("~(core|int)")))(),
    dynamicAnddynamicTobool: () => (T$.dynamicAnddynamicTobool = dart.constFn(dart_rti.findType("core|bool(@,@)")))(),
    DartFormatter: () => (T$.DartFormatter = dart.constFn(dart_rti.findType("_debugger|DartFormatter")))(),
    Formatter: () => (T$.Formatter = dart.constFn(dart_rti.findType("_debugger|Formatter")))(),
    dynamicAnddynamicToStringN: () => (T$.dynamicAnddynamicToStringN = dart.constFn(dart_rti.findType("core|String?(@,@)")))(),
    dynamicAnddynamicToListNOfNameValuePair: () => (T$.dynamicAnddynamicToListNOfNameValuePair = dart.constFn(dart_rti.findType("core|List<_debugger|NameValuePair>?(@,@)")))(),
    ListOfFormatter: () => (T$.ListOfFormatter = dart.constFn(dart_rti.findType("core|List<_debugger|Formatter>")))(),
    dynamicToString: () => (T$.dynamicToString = dart.constFn(dart_rti.findType("core|String(@)")))(),
    dynamicTobool: () => (T$.dynamicTobool = dart.constFn(dart_rti.findType("core|bool(@)")))(),
    dynamicToListNOfNameValuePair: () => (T$.dynamicToListNOfNameValuePair = dart.constFn(dart_rti.findType("core|List<_debugger|NameValuePair>?(@)")))(),
    dynamicToListOfNameValuePair: () => (T$.dynamicToListOfNameValuePair = dart.constFn(dart_rti.findType("core|List<_debugger|NameValuePair>(@)")))(),
    Library: () => (T$.Library = dart.constFn(dart_rti.findType("_debugger|Library")))(),
    dynamicAnddynamicToNull: () => (T$.dynamicAnddynamicToNull = dart.constFn(dart_rti.findType("core|Null(@,@)")))(),
    StringAndObjectTodynamic: () => (T$.StringAndObjectTodynamic = dart.constFn(dart_rti.findType("@(core|String,core|Object)")))(),
    HashMapOfString$String: () => (T$.HashMapOfString$String = dart.constFn(dart_rti.findType("collection|HashMap<core|String,core|String>")))(),
    InternalMap: () => (T$.InternalMap = dart.constFn(dart_rti.findType("_js_helper|InternalMap<@,@>")))(),
    dynamicAnddynamicTovoid: () => (T$.dynamicAnddynamicTovoid = dart.constFn(dart_rti.findType("~(@,@)")))(),
    NamedConstructor: () => (T$.NamedConstructor = dart.constFn(dart_rti.findType("_debugger|NamedConstructor")))(),
    MapEntry: () => (T$.MapEntry = dart.constFn(dart_rti.findType("_debugger|MapEntry")))(),
    HeritageClause: () => (T$.HeritageClause = dart.constFn(dart_rti.findType("_debugger|HeritageClause")))(),
    IterableSpan: () => (T$.IterableSpan = dart.constFn(dart_rti.findType("_debugger|IterableSpan")))(),
    ListOfNameValuePair: () => (T$.ListOfNameValuePair = dart.constFn(dart_rti.findType("core|List<_debugger|NameValuePair>")))(),
    Error: () => (T$.Error = dart.constFn(dart_rti.findType("core|Error")))(),
    Exception: () => (T$.Exception = dart.constFn(dart_rti.findType("core|Exception")))(),
    StringTobool: () => (T$.StringTobool = dart.constFn(dart_rti.findType("core|bool(core|String)")))(),
    dynamicAndSetOfNameValuePairTovoid: () => (T$.dynamicAndSetOfNameValuePairTovoid = dart.constFn(dart_rti.findType("~(@,core|Set<_debugger|NameValuePair>)")))(),
    RegExp: () => (T$.RegExp = dart.constFn(dart_rti.findType("core|RegExp")))(),
    StringToNameValuePair: () => (T$.StringToNameValuePair = dart.constFn(dart_rti.findType("_debugger|NameValuePair(core|String)")))(),
    NameValuePairAndNameValuePairToint: () => (T$.NameValuePairAndNameValuePairToint = dart.constFn(dart_rti.findType("core|int(_debugger|NameValuePair,_debugger|NameValuePair)")))(),
    dynamicToObjectN: () => (T$.dynamicToObjectN = dart.constFn(dart_rti.findType("core|Object?(@)")))(),
    _MethodStats: () => (T$._MethodStats = dart.constFn(dart_rti.findType("_debugger|_MethodStats")))(),
    VoidTo_MethodStats: () => (T$.VoidTo_MethodStats = dart.constFn(dart_rti.findType("_debugger|_MethodStats()")))(),
    StringAndStringToint: () => (T$.StringAndStringToint = dart.constFn(dart_rti.findType("core|int(core|String,core|String)")))(),
    ListOfObject: () => (T$.ListOfObject = dart.constFn(dart_rti.findType("core|List<core|Object>")))(),
    _CallMethodRecord: () => (T$._CallMethodRecord = dart.constFn(dart_rti.findType("_debugger|_CallMethodRecord")))(),
    JSArray: () => (T$.JSArray = dart.constFn(dart_rti.findType("_interceptors|JSArray<@>")))(),
    boolTobool: () => (T$.boolTobool = dart.constFn(dart_rti.findType("core|bool(core|bool)")))(),
    StringToStringN: () => (T$.StringToStringN = dart.constFn(dart_rti.findType("core|String?(core|String)")))(),
    MapNOfSymbol$dynamic: () => (T$.MapNOfSymbol$dynamic = dart.constFn(dart_rti.findType("core|Map<core|Symbol,@>?")))(),
    InvocationN: () => (T$.InvocationN = dart.constFn(dart_rti.findType("core|Invocation?")))(),
    EfficientLengthIterable: () => (T$.EfficientLengthIterable = dart.constFn(dart_rti.findType("_internal|EfficientLengthIterable<@>")))(),
    Comparable: () => (T$.Comparable = dart.constFn(dart_rti.findType("core|Comparable<@>")))(),
    ObjectToJSArrayOfE: () => (T$.ObjectToJSArrayOfE = dart.constFn(dart_rti.findType("_interceptors|JSArray<0^>(core|Object)<core|Object?>")))(),
    dynamicTovoid: () => (T$.dynamicTovoid = dart.constFn(dart_rti.findType("~(@)")))(),
    VoidToListOfR: () => (T$.VoidToListOfR = dart.constFn(dart_rti.findType("core|List<0^>()<core|Object?>")))(),
    ObjectNTovoid: () => (T$.ObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Object?)")))(),
    intAndObjectNTovoid: () => (T$.intAndObjectNTovoid = dart.constFn(dart_rti.findType("~(core|int,core|Object?)")))(),
    StringToString$1: () => (T$.StringToString$1 = dart.constFn(dart_rti.findType("core|String([core|String])")))(),
    intAndintTovoid: () => (T$.intAndintTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int)")))(),
    intAndintAndObjectN__Tovoid: () => (T$.intAndintAndObjectN__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,core|Object?[core|int])")))(),
    intAndintAndObjectNTovoid: () => (T$.intAndintAndObjectNTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int[core|Object?])")))(),
    intAndintAndObjectNTovoid$1: () => (T$.intAndintAndObjectNTovoid$1 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|Object?)")))(),
    RandomNTovoid: () => (T$.RandomNTovoid = dart.constFn(dart_rti.findType("~([math|Random?])")))(),
    ObjectNAndintToint: () => (T$.ObjectNAndintToint = dart.constFn(dart_rti.findType("core|int(core|Object?[core|int])")))(),
    ObjectNAndintNToint: () => (T$.ObjectNAndintNToint = dart.constFn(dart_rti.findType("core|int(core|Object?[core|int?])")))(),
    VoidToIterableOfT: () => (T$.VoidToIterableOfT = dart.constFn(dart_rti.findType("core|Iterable<0^>()<core|Object?>")))(),
    VoidTobool: () => (T$.VoidTobool = dart.constFn(dart_rti.findType("core|bool()")))(),
    numToJSNumber: () => (T$.numToJSNumber = dart.constFn(dart_rti.findType("_interceptors|JSNumber(core|num)")))(),
    VoidToJSNumber: () => (T$.VoidToJSNumber = dart.constFn(dart_rti.findType("_interceptors|JSNumber()")))(),
    JSNumber: () => (T$.JSNumber = dart.constFn(dart_rti.findType("_interceptors|JSNumber")))(),
    VoidToint: () => (T$.VoidToint = dart.constFn(dart_rti.findType("core|int()")))(),
    VoidTodouble: () => (T$.VoidTodouble = dart.constFn(dart_rti.findType("core|double()")))(),
    numAndnumTonum: () => (T$.numAndnumTonum = dart.constFn(dart_rti.findType("core|num(core|num,core|num)")))(),
    intNToString: () => (T$.intNToString = dart.constFn(dart_rti.findType("core|String([core|int?])")))(),
    numTodouble: () => (T$.numTodouble = dart.constFn(dart_rti.findType("core|double(core|num)")))(),
    numTobool: () => (T$.numTobool = dart.constFn(dart_rti.findType("core|bool(core|num)")))(),
    numToint: () => (T$.numToint = dart.constFn(dart_rti.findType("core|int(core|num)")))(),
    intAndintToint: () => (T$.intAndintToint = dart.constFn(dart_rti.findType("core|int(core|int,core|int)")))(),
    intAndintAndboolToint: () => (T$.intAndintAndboolToint = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|bool)")))(),
    JSSyntaxRegExp: () => (T$.JSSyntaxRegExp = dart.constFn(dart_rti.findType("_js_helper|JSSyntaxRegExp")))(),
    StringAndintToIterableOfMatch: () => (T$.StringAndintToIterableOfMatch = dart.constFn(dart_rti.findType("core|Iterable<core|Match>(core|String[core|int])")))(),
    StringAndintToMatchN: () => (T$.StringAndintToMatchN = dart.constFn(dart_rti.findType("core|Match?(core|String[core|int])")))(),
    PatternAndStringToString: () => (T$.PatternAndStringToString = dart.constFn(dart_rti.findType("core|String(core|Pattern,core|String)")))(),
    PatternAndFnToString: () => (T$.PatternAndFnToString = dart.constFn(dart_rti.findType("core|String(core|Pattern,core|String(core|Match))")))(),
    Pattern__ToString: () => (T$.Pattern__ToString = dart.constFn(dart_rti.findType("core|String(core|Pattern{onMatch:core|String(core|Match)?,onNonMatch:core|String(core|String)?})")))(),
    PatternAndStringAndintToString: () => (T$.PatternAndStringAndintToString = dart.constFn(dart_rti.findType("core|String(core|Pattern,core|String[core|int])")))(),
    PatternAndFnAndintToString: () => (T$.PatternAndFnAndintToString = dart.constFn(dart_rti.findType("core|String(core|Pattern,core|String(core|Match)[core|int])")))(),
    PatternToListOfString: () => (T$.PatternToListOfString = dart.constFn(dart_rti.findType("core|List<core|String>(core|Pattern)")))(),
    intAndintNAndStringToString: () => (T$.intAndintNAndStringToString = dart.constFn(dart_rti.findType("core|String(core|int,core|int?,core|String)")))(),
    PatternAndintTobool: () => (T$.PatternAndintTobool = dart.constFn(dart_rti.findType("core|bool(core|Pattern[core|int])")))(),
    intAndintNToString: () => (T$.intAndintNToString = dart.constFn(dart_rti.findType("core|String(core|int[core|int?])")))(),
    intAndStringToString: () => (T$.intAndStringToString = dart.constFn(dart_rti.findType("core|String(core|int[core|String])")))(),
    ListOfint: () => (T$.ListOfint = dart.constFn(dart_rti.findType("core|List<core|int>")))(),
    Runes: () => (T$.Runes = dart.constFn(dart_rti.findType("core|Runes")))(),
    PatternAndintToint: () => (T$.PatternAndintToint = dart.constFn(dart_rti.findType("core|int(core|Pattern[core|int])")))(),
    PatternAndintNToint: () => (T$.PatternAndintNToint = dart.constFn(dart_rti.findType("core|int(core|Pattern[core|int?])")))(),
    CodeUnits: () => (T$.CodeUnits = dart.constFn(dart_rti.findType("_internal|CodeUnits")))(),
    dynamicAnddynamicToint: () => (T$.dynamicAnddynamicToint = dart.constFn(dart_rti.findType("core|int(@,@)")))(),
    ListOfObjectNToString: () => (T$.ListOfObjectNToString = dart.constFn(dart_rti.findType("core|String(core|List<core|Object?>)")))(),
    CodeUnitsToString: () => (T$.CodeUnitsToString = dart.constFn(dart_rti.findType("core|String(_internal|CodeUnits)")))(),
    intAndintAndintToint: () => (T$.intAndintAndintToint = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int)")))(),
    intAndintAndint__Toint: () => (T$.intAndintAndint__Toint = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$1: () => (T$.intAndintAndint__Toint$1 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$2: () => (T$.intAndintAndint__Toint$2 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$3: () => (T$.intAndintAndint__Toint$3 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$4: () => (T$.intAndintAndint__Toint$4 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$5: () => (T$.intAndintAndint__Toint$5 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$6: () => (T$.intAndintAndint__Toint$6 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$7: () => (T$.intAndintAndint__Toint$7 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$8: () => (T$.intAndintAndint__Toint$8 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$9: () => (T$.intAndintAndint__Toint$9 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$10: () => (T$.intAndintAndint__Toint$10 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$11: () => (T$.intAndintAndint__Toint$11 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$12: () => (T$.intAndintAndint__Toint$12 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$13: () => (T$.intAndintAndint__Toint$13 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$14: () => (T$.intAndintAndint__Toint$14 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$15: () => (T$.intAndintAndint__Toint$15 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$16: () => (T$.intAndintAndint__Toint$16 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Toint$17: () => (T$.intAndintAndint__Toint$17 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    ObjectAndStackTraceTovoid: () => (T$.ObjectAndStackTraceTovoid = dart.constFn(dart_rti.findType("~(core|Object,core|StackTrace)")))(),
    VoidTo_FutureOfNull: () => (T$.VoidTo_FutureOfNull = dart.constFn(dart_rti.findType("async|_Future<core|Null>()")))(),
    ObjectTovoid: () => (T$.ObjectTovoid = dart.constFn(dart_rti.findType("~(core|Object)")))(),
    dynamicToFuture: () => (T$.dynamicToFuture = dart.constFn(dart_rti.findType("async|Future<@>(@)")))(),
    boolToNull: () => (T$.boolToNull = dart.constFn(dart_rti.findType("core|Null(core|bool)")))(),
    voidToNull: () => (T$.voidToNull = dart.constFn(dart_rti.findType("core|Null(~)")))(),
    ObjectAndStackTraceToNull: () => (T$.ObjectAndStackTraceToNull = dart.constFn(dart_rti.findType("core|Null(core|Object,core|StackTrace)")))(),
    VoidToFutureOfvoid: () => (T$.VoidToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>()")))(),
    __ToStreamOfT: () => (T$.__ToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>({broadcast:core|bool})<core|Object?>")))(),
    TToStreamOfT: () => (T$.TToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>(0^)<core|Object?>")))(),
    ObjectAndStackTraceNToStreamOfT: () => (T$.ObjectAndStackTraceNToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>(core|Object[core|StackTrace?])<core|Object?>")))(),
    FutureOfTToStreamOfT: () => (T$.FutureOfTToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>(async|Future<0^>)<core|Object?>")))(),
    IterableOfFutureOfTToStreamOfT: () => (T$.IterableOfFutureOfTToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>(core|Iterable<async|Future<0^>>)<core|Object?>")))(),
    IterableOfTToStreamOfT: () => (T$.IterableOfTToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>(core|Iterable<0^>)<core|Object?>")))(),
    Fn__ToStreamOfT: () => (T$.Fn__ToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>(~(async|MultiStreamController<0^>){isBroadcast:core|bool})<core|Object?>")))(),
    DurationAndFnToStreamOfT: () => (T$.DurationAndFnToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>(core|Duration[0^(core|int)?])<core|Object?>")))(),
    StreamAndFnToStreamOfT: () => (T$.StreamAndFnToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>(async|Stream<@>,async|EventSink<@>(async|EventSink<0^>))<core|Object?>")))(),
    StreamOfSToStreamOfT: () => (T$.StreamOfSToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<1^>(async|Stream<0^>)<core|Object?,core|Object?>")))(),
    ObjectNToFuture: () => (T$.ObjectNToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|Object?)")))(),
    StringToFutureOfString: () => (T$.StringToFutureOfString = dart.constFn(dart_rti.findType("async|Future<core|String>([core|String])")))(),
    ObjectNToFutureOfbool: () => (T$.ObjectNToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(core|Object?)")))(),
    FutureOfint: () => (T$.FutureOfint = dart.constFn(dart_rti.findType("async|Future<core|int>")))(),
    FutureOfbool: () => (T$.FutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>")))(),
    VoidToStreamOfR: () => (T$.VoidToStreamOfR = dart.constFn(dart_rti.findType("async|Stream<0^>()<core|Object?>")))(),
    ENToFutureOfE: () => (T$.ENToFutureOfE = dart.constFn(dart_rti.findType("async|Future<0^>([0^?])<core|Object?>")))(),
    VoidToFuture: () => (T$.VoidToFuture = dart.constFn(dart_rti.findType("async|Future<@>()")))(),
    FunctionNTovoid: () => (T$.FunctionNTovoid = dart.constFn(dart_rti.findType("~(core|Function?)")))(),
    FnTovoid$9: () => (T$.FnTovoid$9 = dart.constFn(dart_rti.findType("~(~()?)")))(),
    FutureNTovoid: () => (T$.FutureNTovoid = dart.constFn(dart_rti.findType("~([async|Future<@>?])")))(),
    Zone: () => (T$.Zone = dart.constFn(dart_rti.findType("async|Zone")))(),
    FunctionN: () => (T$.FunctionN = dart.constFn(dart_rti.findType("core|Function?")))(),
    VoidToStreamTransformerOfRS$RT: () => (T$.VoidToStreamTransformerOfRS$RT = dart.constFn(dart_rti.findType("async|StreamTransformer<0^,1^>()<core|Object?,core|Object?>")))(),
    EventSinkTo_ConverterStreamEventSink: () => (T$.EventSinkTo_ConverterStreamEventSink = dart.constFn(dart_rti.findType("convert|_ConverterStreamEventSink<@,@>(async|EventSink<@>)")))(),
    ConverterOfSS$STToConverterOfTS$TT: () => (T$.ConverterOfSS$STToConverterOfTS$TT = dart.constFn(dart_rti.findType("convert|Converter<2^,3^>(convert|Converter<0^,1^>)<core|Object?,core|Object?,core|Object?,core|Object?>")))(),
    VoidToConverterOfRS$RT: () => (T$.VoidToConverterOfRS$RT = dart.constFn(dart_rti.findType("convert|Converter<0^,1^>()<core|Object?,core|Object?>")))(),
    __ToBytesBuilder: () => (T$.__ToBytesBuilder = dart.constFn(dart_rti.findType("_internal|BytesBuilder({copy:core|bool})")))(),
    Uint8List: () => (T$.Uint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List")))(),
    ListOfintTovoid: () => (T$.ListOfintTovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>)")))(),
    VoidToUint8List: () => (T$.VoidToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List()")))(),
    ListOfUint8List: () => (T$.ListOfUint8List = dart.constFn(dart_rti.findType("core|List<typed_data|Uint8List>")))(),
    intAndFnToIterableOfE: () => (T$.intAndFnToIterableOfE = dart.constFn(dart_rti.findType("core|Iterable<0^>(core|int[0^(core|int)?])<core|Object?>")))(),
    IterableOfSToIterableOfT: () => (T$.IterableOfSToIterableOfT = dart.constFn(dart_rti.findType("core|Iterable<1^>(core|Iterable<0^>)<core|Object?,core|Object?>")))(),
    IterableAndStringAndStringToString: () => (T$.IterableAndStringAndStringToString = dart.constFn(dart_rti.findType("core|String(core|Iterable<@>[core|String,core|String])")))(),
    IterableOfSToCastIterableOfS$T: () => (T$.IterableOfSToCastIterableOfS$T = dart.constFn(dart_rti.findType("_internal|CastIterable<0^,1^>(core|Iterable<0^>)<core|Object?,core|Object?>")))()
  };
  var T$0 = {
    VoidToSetOfR: () => (T$0.VoidToSetOfR = dart.constFn(dart_rti.findType("core|Set<0^>()<core|Object?>")))(),
    IterableOfObjectNTovoid: () => (T$0.IterableOfObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Iterable<core|Object?>)")))(),
    IterableOfObjectNTobool: () => (T$0.IterableOfObjectNTobool = dart.constFn(dart_rti.findType("core|bool(core|Iterable<core|Object?>)")))(),
    VoidToNSetOfR: () => (T$0.VoidToNSetOfR = dart.constFn(dart_rti.findType("core|Set<0^>()<core|Object?>?")))(),
    VoidToMapOfRK$RV: () => (T$0.VoidToMapOfRK$RV = dart.constFn(dart_rti.findType("core|Map<0^,1^>()<core|Object?,core|Object?>")))(),
    MapOfObjectN$ObjectNToString: () => (T$0.MapOfObjectN$ObjectNToString = dart.constFn(dart_rti.findType("core|String(core|Map<core|Object?,core|Object?>)")))(),
    MapOfObjectN$ObjectNAndIterableOfObjectNAndFn__Tovoid: () => (T$0.MapOfObjectN$ObjectNAndIterableOfObjectNAndFn__Tovoid = dart.constFn(dart_rti.findType("~(core|Map<core|Object?,core|Object?>,core|Iterable<core|Object?>,core|Object?(core|Object?)?,core|Object?(core|Object?)?)")))(),
    MapOfObjectN$ObjectNAndIterableOfObjectNAndIterableOfObjectNTovoid: () => (T$0.MapOfObjectN$ObjectNAndIterableOfObjectNAndIterableOfObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Map<core|Object?,core|Object?>,core|Iterable<core|Object?>,core|Iterable<core|Object?>)")))(),
    VoidToQueueOfR: () => (T$0.VoidToQueueOfR = dart.constFn(dart_rti.findType("collection|Queue<0^>()<core|Object?>")))(),
    IterableOfSAndFnToMappedIterableOfS$T: () => (T$0.IterableOfSAndFnToMappedIterableOfS$T = dart.constFn(dart_rti.findType("_internal|MappedIterable<0^,1^>(core|Iterable<0^>,1^(0^))<core|Object?,core|Object?>")))(),
    EmptyIteratorOfNeverL: () => (T$0.EmptyIteratorOfNeverL = dart.constFn(dart_rti.findType("_internal|EmptyIterator<0&*>")))(),
    IterableOfEAndintToTakeIterableOfE: () => (T$0.IterableOfEAndintToTakeIterableOfE = dart.constFn(dart_rti.findType("_internal|TakeIterable<0^>(core|Iterable<0^>,core|int)<core|Object?>")))(),
    IterableOfEAndintToSkipIterableOfE: () => (T$0.IterableOfEAndintToSkipIterableOfE = dart.constFn(dart_rti.findType("_internal|SkipIterable<0^>(core|Iterable<0^>,core|int)<core|Object?>")))(),
    IterableOfEAndintToEfficientLengthSkipIterableOfE: () => (T$0.IterableOfEAndintToEfficientLengthSkipIterableOfE = dart.constFn(dart_rti.findType("_internal|EfficientLengthSkipIterable<0^>(core|Iterable<0^>,core|int)<core|Object?>")))(),
    EfficientLengthIterableOfEAndIterableOfEToFollowedByIterableOfE: () => (T$0.EfficientLengthIterableOfEAndIterableOfEToFollowedByIterableOfE = dart.constFn(dart_rti.findType("_internal|FollowedByIterable<0^>(_internal|EfficientLengthIterable<0^>,core|Iterable<0^>)<core|Object?>")))(),
    IterableOfObjectN: () => (T$0.IterableOfObjectN = dart.constFn(dart_rti.findType("core|Iterable<core|Object?>")))(),
    IteratorOfObjectN: () => (T$0.IteratorOfObjectN = dart.constFn(dart_rti.findType("core|Iterator<core|Object?>")))(),
    RecOfObjectNAndObjectN: () => (T$0.RecOfObjectNAndObjectN = dart.constFn(dart_rti.findType("+(core|Object?,core|Object?)")))(),
    IterableOfTAndintToIndexedIterableOfT: () => (T$0.IterableOfTAndintToIndexedIterableOfT = dart.constFn(dart_rti.findType("_internal|IndexedIterable<0^>(core|Iterable<0^>,core|int)<core|Object?>")))(),
    VoidToStateError: () => (T$0.VoidToStateError = dart.constFn(dart_rti.findType("core|StateError()")))(),
    _ListIndicesIterable: () => (T$0._ListIndicesIterable = dart.constFn(dart_rti.findType("_internal|_ListIndicesIterable")))(),
    IterableOfint: () => (T$0.IterableOfint = dart.constFn(dart_rti.findType("core|Iterable<core|int>")))(),
    VoidToUnsupportedError: () => (T$0.VoidToUnsupportedError = dart.constFn(dart_rti.findType("core|UnsupportedError()")))(),
    ListOfEAndFnTovoid: () => (T$0.ListOfEAndFnTovoid = dart.constFn(dart_rti.findType("~(core|List<0^>,core|int(0^,0^))<core|Object?>")))(),
    ListOfEAndintAndint__Tovoid: () => (T$0.ListOfEAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|List<0^>,core|int,core|int,core|int(0^,0^))<core|Object?>")))(),
    Symbol$1: () => (T$0.Symbol$1 = dart.constFn(dart_rti.findType("_internal|Symbol")))(),
    SymbolToString: () => (T$0.SymbolToString = dart.constFn(dart_rti.findType("core|String(_internal|Symbol)")))(),
    doubleL: () => (T$0.doubleL = dart.constFn(dart_rti.findType("core|double*")))(),
    FutureOfNull: () => (T$0.FutureOfNull = dart.constFn(dart_rti.findType("async|Future<core|Null>")))(),
    VoidToFutureOfNull: () => (T$0.VoidToFutureOfNull = dart.constFn(dart_rti.findType("async|Future<core|Null>()")))(),
    VoidToNull: () => (T$0.VoidToNull = dart.constFn(dart_rti.findType("core|Null()")))(),
    ListOfString: () => (T$0.ListOfString = dart.constFn(dart_rti.findType("core|List<core|String>")))(),
    StringAndintNTointN: () => (T$0.StringAndintNTointN = dart.constFn(dart_rti.findType("core|int?(core|String,core|int?)")))(),
    StringTodoubleN: () => (T$0.StringTodoubleN = dart.constFn(dart_rti.findType("core|double?(core|String)")))(),
    StringAndboolToboolN: () => (T$0.StringAndboolToboolN = dart.constFn(dart_rti.findType("core|bool?(core|String,core|bool)")))(),
    ListOfintToString: () => (T$0.ListOfintToString = dart.constFn(dart_rti.findType("core|String(core|List<core|int>)")))(),
    JSArrayOfintToString: () => (T$0.JSArrayOfintToString = dart.constFn(dart_rti.findType("core|String(_interceptors|JSArray<core|int>)")))(),
    NativeUint8ListAndintAndintToString: () => (T$0.NativeUint8ListAndintAndintToString = dart.constFn(dart_rti.findType("core|String(_native_typed_data|NativeUint8List,core|int,core|int)")))(),
    DateTimeToString: () => (T$0.DateTimeToString = dart.constFn(dart_rti.findType("core|String(core|DateTime)")))(),
    DateTimeToint: () => (T$0.DateTimeToint = dart.constFn(dart_rti.findType("core|int(core|DateTime)")))(),
    intAndintAndint__TointN: () => (T$0.intAndintAndint__TointN = dart.constFn(dart_rti.findType("core|int?(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|bool)")))(),
    DateTimeTodynamic: () => (T$0.DateTimeTodynamic = dart.constFn(dart_rti.findType("@(core|DateTime)")))(),
    ObjectNAndObjectToObjectN: () => (T$0.ObjectNAndObjectToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Object?,core|Object)")))(),
    dynamicAnddynamicAnddynamicTovoid: () => (T$0.dynamicAnddynamicAnddynamicTovoid = dart.constFn(dart_rti.findType("~(@,@,@)")))(),
    PrivateSymbol: () => (T$0.PrivateSymbol = dart.constFn(dart_rti.findType("_js_helper|PrivateSymbol")))(),
    SymbolToString$1: () => (T$0.SymbolToString$1 = dart.constFn(dart_rti.findType("core|String(core|Symbol)")))(),
    SymbolToObjectN: () => (T$0.SymbolToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Symbol)")))(),
    VoidToError: () => (T$0.VoidToError = dart.constFn(dart_rti.findType("core|Error()")))(),
    StringAndboolAndbool__Todynamic: () => (T$0.StringAndboolAndbool__Todynamic = dart.constFn(dart_rti.findType("@(core|String,core|bool,core|bool,core|bool,core|bool,core|bool)")))(),
    StringToRegExpMatchN: () => (T$0.StringToRegExpMatchN = dart.constFn(dart_rti.findType("core|RegExpMatch?(core|String)")))(),
    StringAndintToIterableOfRegExpMatch: () => (T$0.StringAndintToIterableOfRegExpMatch = dart.constFn(dart_rti.findType("core|Iterable<core|RegExpMatch>(core|String[core|int])")))(),
    StringAndintToRegExpMatchN: () => (T$0.StringAndintToRegExpMatchN = dart.constFn(dart_rti.findType("core|RegExpMatch?(core|String,core|int)")))(),
    intToStringN: () => (T$0.intToStringN = dart.constFn(dart_rti.findType("core|String?(core|int)")))(),
    ListOfintToListOfStringN: () => (T$0.ListOfintToListOfStringN = dart.constFn(dart_rti.findType("core|List<core|String?>(core|List<core|int>)")))(),
    IterableOfString: () => (T$0.IterableOfString = dart.constFn(dart_rti.findType("core|Iterable<core|String>")))(),
    ListOfStringN: () => (T$0.ListOfStringN = dart.constFn(dart_rti.findType("core|List<core|String?>")))(),
    _AllMatchesIterable: () => (T$0._AllMatchesIterable = dart.constFn(dart_rti.findType("_js_helper|_AllMatchesIterable")))(),
    IteratorOfRegExpMatch: () => (T$0.IteratorOfRegExpMatch = dart.constFn(dart_rti.findType("core|Iterator<core|RegExpMatch>")))(),
    RegExpMatch: () => (T$0.RegExpMatch = dart.constFn(dart_rti.findType("core|RegExpMatch")))(),
    RegExpMatchN: () => (T$0.RegExpMatchN = dart.constFn(dart_rti.findType("core|RegExpMatch?")))(),
    ListOfintToListOfString: () => (T$0.ListOfintToListOfString = dart.constFn(dart_rti.findType("core|List<core|String>(core|List<core|int>)")))(),
    _StringAllMatchesIterable: () => (T$0._StringAllMatchesIterable = dart.constFn(dart_rti.findType("_js_helper|_StringAllMatchesIterable")))(),
    IteratorOfMatch: () => (T$0.IteratorOfMatch = dart.constFn(dart_rti.findType("core|Iterator<core|Match>")))(),
    Match: () => (T$0.Match = dart.constFn(dart_rti.findType("core|Match")))(),
    MatchN: () => (T$0.MatchN = dart.constFn(dart_rti.findType("core|Match?")))(),
    MatchToString: () => (T$0.MatchToString = dart.constFn(dart_rti.findType("core|String(core|Match)")))(),
    ByteBuffer: () => (T$0.ByteBuffer = dart.constFn(dart_rti.findType("typed_data|ByteBuffer")))(),
    intAndintNToUint8List: () => (T$0.intAndintNToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List([core|int,core|int?])")))(),
    intAndintNToInt8List: () => (T$0.intAndintNToInt8List = dart.constFn(dart_rti.findType("typed_data|Int8List([core|int,core|int?])")))(),
    intAndintNToUint8ClampedList: () => (T$0.intAndintNToUint8ClampedList = dart.constFn(dart_rti.findType("typed_data|Uint8ClampedList([core|int,core|int?])")))(),
    intAndintNToUint16List: () => (T$0.intAndintNToUint16List = dart.constFn(dart_rti.findType("typed_data|Uint16List([core|int,core|int?])")))(),
    intAndintNToInt16List: () => (T$0.intAndintNToInt16List = dart.constFn(dart_rti.findType("typed_data|Int16List([core|int,core|int?])")))(),
    intAndintNToUint32List: () => (T$0.intAndintNToUint32List = dart.constFn(dart_rti.findType("typed_data|Uint32List([core|int,core|int?])")))(),
    intAndintNToInt32List: () => (T$0.intAndintNToInt32List = dart.constFn(dart_rti.findType("typed_data|Int32List([core|int,core|int?])")))(),
    intAndintNToUint64List: () => (T$0.intAndintNToUint64List = dart.constFn(dart_rti.findType("typed_data|Uint64List([core|int,core|int?])")))(),
    intAndintNToInt64List: () => (T$0.intAndintNToInt64List = dart.constFn(dart_rti.findType("typed_data|Int64List([core|int,core|int?])")))(),
    intAndintNToInt32x4List: () => (T$0.intAndintNToInt32x4List = dart.constFn(dart_rti.findType("typed_data|Int32x4List([core|int,core|int?])")))(),
    intAndintNToFloat32List: () => (T$0.intAndintNToFloat32List = dart.constFn(dart_rti.findType("typed_data|Float32List([core|int,core|int?])")))(),
    intAndintNToFloat64List: () => (T$0.intAndintNToFloat64List = dart.constFn(dart_rti.findType("typed_data|Float64List([core|int,core|int?])")))(),
    intAndintNToFloat32x4List: () => (T$0.intAndintNToFloat32x4List = dart.constFn(dart_rti.findType("typed_data|Float32x4List([core|int,core|int?])")))(),
    intAndintNToFloat64x2List: () => (T$0.intAndintNToFloat64x2List = dart.constFn(dart_rti.findType("typed_data|Float64x2List([core|int,core|int?])")))(),
    intAndintNToByteData: () => (T$0.intAndintNToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData([core|int,core|int?])")))(),
    NativeFloat32x4List: () => (T$0.NativeFloat32x4List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat32x4List")))(),
    Float32x4List: () => (T$0.Float32x4List = dart.constFn(dart_rti.findType("typed_data|Float32x4List")))(),
    Float32x4: () => (T$0.Float32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4")))(),
    ListOfFloat32x4ToNativeFloat32x4List: () => (T$0.ListOfFloat32x4ToNativeFloat32x4List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat32x4List(core|List<typed_data|Float32x4>)")))(),
    intToFloat32x4: () => (T$0.intToFloat32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4(core|int)")))(),
    VoidToFloat32x4List: () => (T$0.VoidToFloat32x4List = dart.constFn(dart_rti.findType("typed_data|Float32x4List()")))(),
    intAndintNToFloat32x4List$1: () => (T$0.intAndintNToFloat32x4List$1 = dart.constFn(dart_rti.findType("typed_data|Float32x4List(core|int[core|int?])")))(),
    Float32List: () => (T$0.Float32List = dart.constFn(dart_rti.findType("typed_data|Float32List")))(),
    NativeInt32x4List: () => (T$0.NativeInt32x4List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt32x4List")))(),
    Int32x4List: () => (T$0.Int32x4List = dart.constFn(dart_rti.findType("typed_data|Int32x4List")))(),
    Int32x4: () => (T$0.Int32x4 = dart.constFn(dart_rti.findType("typed_data|Int32x4")))(),
    ListOfInt32x4ToNativeInt32x4List: () => (T$0.ListOfInt32x4ToNativeInt32x4List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt32x4List(core|List<typed_data|Int32x4>)")))(),
    intToInt32x4: () => (T$0.intToInt32x4 = dart.constFn(dart_rti.findType("typed_data|Int32x4(core|int)")))(),
    VoidToInt32x4List: () => (T$0.VoidToInt32x4List = dart.constFn(dart_rti.findType("typed_data|Int32x4List()")))(),
    intAndintNToInt32x4List$1: () => (T$0.intAndintNToInt32x4List$1 = dart.constFn(dart_rti.findType("typed_data|Int32x4List(core|int[core|int?])")))(),
    Int32List: () => (T$0.Int32List = dart.constFn(dart_rti.findType("typed_data|Int32List")))(),
    NativeFloat64x2List: () => (T$0.NativeFloat64x2List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat64x2List")))(),
    Float64x2List: () => (T$0.Float64x2List = dart.constFn(dart_rti.findType("typed_data|Float64x2List")))(),
    Float64x2: () => (T$0.Float64x2 = dart.constFn(dart_rti.findType("typed_data|Float64x2")))(),
    ListOfFloat64x2ToNativeFloat64x2List: () => (T$0.ListOfFloat64x2ToNativeFloat64x2List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat64x2List(core|List<typed_data|Float64x2>)")))(),
    intToFloat64x2: () => (T$0.intToFloat64x2 = dart.constFn(dart_rti.findType("typed_data|Float64x2(core|int)")))(),
    VoidToFloat64x2List: () => (T$0.VoidToFloat64x2List = dart.constFn(dart_rti.findType("typed_data|Float64x2List()")))(),
    intAndintNToFloat64x2List$1: () => (T$0.intAndintNToFloat64x2List$1 = dart.constFn(dart_rti.findType("typed_data|Float64x2List(core|int[core|int?])")))(),
    Float64List: () => (T$0.Float64List = dart.constFn(dart_rti.findType("typed_data|Float64List")))(),
    intAndintAndStringTovoid: () => (T$0.intAndintAndStringTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,core|String)")))(),
    ByteData: () => (T$0.ByteData = dart.constFn(dart_rti.findType("typed_data|ByteData")))(),
    intToNativeByteData: () => (T$0.intToNativeByteData = dart.constFn(dart_rti.findType("_native_typed_data|NativeByteData(core|int)")))(),
    ByteBufferAndintAndintNToNativeByteData: () => (T$0.ByteBufferAndintAndintNToNativeByteData = dart.constFn(dart_rti.findType("_native_typed_data|NativeByteData(typed_data|ByteBuffer,core|int,core|int?)")))(),
    VoidToByteData: () => (T$0.VoidToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData()")))(),
    intAndEndianTodouble: () => (T$0.intAndEndianTodouble = dart.constFn(dart_rti.findType("core|double(core|int[typed_data|Endian])")))(),
    intAndboolNTodouble: () => (T$0.intAndboolNTodouble = dart.constFn(dart_rti.findType("core|double(core|int[core|bool?])")))(),
    intAndEndianToint: () => (T$0.intAndEndianToint = dart.constFn(dart_rti.findType("core|int(core|int[typed_data|Endian])")))(),
    intAndboolNToint: () => (T$0.intAndboolNToint = dart.constFn(dart_rti.findType("core|int(core|int[core|bool?])")))(),
    intAndnumAndEndianTovoid: () => (T$0.intAndnumAndEndianTovoid = dart.constFn(dart_rti.findType("~(core|int,core|num[typed_data|Endian])")))(),
    intAndnumAndboolNTovoid: () => (T$0.intAndnumAndboolNTovoid = dart.constFn(dart_rti.findType("~(core|int,core|num[core|bool?])")))(),
    intAndintAndEndianTovoid: () => (T$0.intAndintAndEndianTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int[typed_data|Endian])")))(),
    intAndintAndboolNTovoid: () => (T$0.intAndintAndboolNTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int[core|bool?])")))(),
    dynamicToNativeByteData: () => (T$0.dynamicToNativeByteData = dart.constFn(dart_rti.findType("_native_typed_data|NativeByteData(@)")))(),
    dynamicAnddynamicToNativeByteData: () => (T$0.dynamicAnddynamicToNativeByteData = dart.constFn(dart_rti.findType("_native_typed_data|NativeByteData(@,@)")))(),
    dynamicAnddynamicAnddynamicToNativeByteData: () => (T$0.dynamicAnddynamicAnddynamicToNativeByteData = dart.constFn(dart_rti.findType("_native_typed_data|NativeByteData(@,@,@)")))(),
    intAndintAndNativeTypedArray__Tovoid: () => (T$0.intAndintAndNativeTypedArray__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,_native_typed_data|NativeTypedArray<@>,core|int)")))(),
    NativeTypedArrayOfDouble: () => (T$0.NativeTypedArrayOfDouble = dart.constFn(dart_rti.findType("_native_typed_data|NativeTypedArrayOfDouble")))(),
    IterableOfdouble: () => (T$0.IterableOfdouble = dart.constFn(dart_rti.findType("core|Iterable<core|double>")))(),
    intTodouble: () => (T$0.intTodouble = dart.constFn(dart_rti.findType("core|double(core|int)")))(),
    NativeTypedArrayOfInt: () => (T$0.NativeTypedArrayOfInt = dart.constFn(dart_rti.findType("_native_typed_data|NativeTypedArrayOfInt")))(),
    intToNativeFloat32List: () => (T$0.intToNativeFloat32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat32List(core|int)")))(),
    ListOfdoubleToNativeFloat32List: () => (T$0.ListOfdoubleToNativeFloat32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat32List(core|List<core|double>)")))(),
    ByteBufferAndintAndintNToNativeFloat32List: () => (T$0.ByteBufferAndintAndintNToNativeFloat32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat32List(typed_data|ByteBuffer,core|int,core|int?)")))(),
    VoidToFloat32List: () => (T$0.VoidToFloat32List = dart.constFn(dart_rti.findType("typed_data|Float32List()")))(),
    intAndintNToFloat32List$1: () => (T$0.intAndintNToFloat32List$1 = dart.constFn(dart_rti.findType("typed_data|Float32List(core|int[core|int?])")))(),
    dynamicToNativeFloat32List: () => (T$0.dynamicToNativeFloat32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat32List(@)")))(),
    dynamicAnddynamicAnddynamicToNativeFloat32List: () => (T$0.dynamicAnddynamicAnddynamicToNativeFloat32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat32List(@,@,@)")))(),
    intToNativeFloat64List: () => (T$0.intToNativeFloat64List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat64List(core|int)")))(),
    ListOfdoubleToNativeFloat64List: () => (T$0.ListOfdoubleToNativeFloat64List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat64List(core|List<core|double>)")))(),
    ByteBufferAndintAndintNToNativeFloat64List: () => (T$0.ByteBufferAndintAndintNToNativeFloat64List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat64List(typed_data|ByteBuffer,core|int,core|int?)")))(),
    VoidToFloat64List: () => (T$0.VoidToFloat64List = dart.constFn(dart_rti.findType("typed_data|Float64List()")))(),
    intAndintNToFloat64List$1: () => (T$0.intAndintNToFloat64List$1 = dart.constFn(dart_rti.findType("typed_data|Float64List(core|int[core|int?])")))(),
    dynamicToNativeFloat64List: () => (T$0.dynamicToNativeFloat64List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat64List(@)")))(),
    dynamicAnddynamicAnddynamicToNativeFloat64List: () => (T$0.dynamicAnddynamicAnddynamicToNativeFloat64List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat64List(@,@,@)")))(),
    Int16List: () => (T$0.Int16List = dart.constFn(dart_rti.findType("typed_data|Int16List")))(),
    intToNativeInt16List: () => (T$0.intToNativeInt16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt16List(core|int)")))(),
    ListOfintToNativeInt16List: () => (T$0.ListOfintToNativeInt16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt16List(core|List<core|int>)")))(),
    NativeByteBufferAndintAndintNToNativeInt16List: () => (T$0.NativeByteBufferAndintAndintNToNativeInt16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt16List(_native_typed_data|NativeByteBuffer,core|int,core|int?)")))(),
    VoidToInt16List: () => (T$0.VoidToInt16List = dart.constFn(dart_rti.findType("typed_data|Int16List()")))(),
    intAndintNToInt16List$1: () => (T$0.intAndintNToInt16List$1 = dart.constFn(dart_rti.findType("typed_data|Int16List(core|int[core|int?])")))(),
    dynamicToNativeInt16List: () => (T$0.dynamicToNativeInt16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt16List(@)")))(),
    dynamicAnddynamicAnddynamicToNativeInt16List: () => (T$0.dynamicAnddynamicAnddynamicToNativeInt16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt16List(@,@,@)")))(),
    intToNativeInt32List: () => (T$0.intToNativeInt32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt32List(core|int)")))(),
    ListOfintToNativeInt32List: () => (T$0.ListOfintToNativeInt32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt32List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToNativeInt32List: () => (T$0.ByteBufferAndintAndintNToNativeInt32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt32List(typed_data|ByteBuffer,core|int,core|int?)")))(),
    VoidToInt32List: () => (T$0.VoidToInt32List = dart.constFn(dart_rti.findType("typed_data|Int32List()")))(),
    intAndintNToInt32List$1: () => (T$0.intAndintNToInt32List$1 = dart.constFn(dart_rti.findType("typed_data|Int32List(core|int[core|int?])")))(),
    dynamicToNativeInt32List: () => (T$0.dynamicToNativeInt32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt32List(@)")))(),
    dynamicAnddynamicAnddynamicToNativeInt32List: () => (T$0.dynamicAnddynamicAnddynamicToNativeInt32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt32List(@,@,@)")))(),
    Int8List: () => (T$0.Int8List = dart.constFn(dart_rti.findType("typed_data|Int8List")))(),
    intToNativeInt8List: () => (T$0.intToNativeInt8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt8List(core|int)")))(),
    ListOfintToNativeInt8List: () => (T$0.ListOfintToNativeInt8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt8List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToNativeInt8List: () => (T$0.ByteBufferAndintAndintNToNativeInt8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt8List(typed_data|ByteBuffer,core|int,core|int?)")))(),
    VoidToInt8List: () => (T$0.VoidToInt8List = dart.constFn(dart_rti.findType("typed_data|Int8List()")))(),
    intAndintNToInt8List$1: () => (T$0.intAndintNToInt8List$1 = dart.constFn(dart_rti.findType("typed_data|Int8List(core|int[core|int?])")))(),
    dynamicToNativeInt8List: () => (T$0.dynamicToNativeInt8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt8List(@)")))(),
    dynamicAnddynamicToNativeInt8List: () => (T$0.dynamicAnddynamicToNativeInt8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt8List(@,@)")))(),
    dynamicAnddynamicAnddynamicToNativeInt8List: () => (T$0.dynamicAnddynamicAnddynamicToNativeInt8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt8List(@,@,@)")))(),
    Uint16List: () => (T$0.Uint16List = dart.constFn(dart_rti.findType("typed_data|Uint16List")))(),
    intToNativeUint16List: () => (T$0.intToNativeUint16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint16List(core|int)")))(),
    ListOfintToNativeUint16List: () => (T$0.ListOfintToNativeUint16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint16List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToNativeUint16List: () => (T$0.ByteBufferAndintAndintNToNativeUint16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint16List(typed_data|ByteBuffer,core|int,core|int?)")))(),
    VoidToUint16List: () => (T$0.VoidToUint16List = dart.constFn(dart_rti.findType("typed_data|Uint16List()")))(),
    intAndintNToUint16List$1: () => (T$0.intAndintNToUint16List$1 = dart.constFn(dart_rti.findType("typed_data|Uint16List(core|int[core|int?])")))(),
    dynamicToNativeUint16List: () => (T$0.dynamicToNativeUint16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint16List(@)")))(),
    dynamicAnddynamicAnddynamicToNativeUint16List: () => (T$0.dynamicAnddynamicAnddynamicToNativeUint16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint16List(@,@,@)")))(),
    Uint32List: () => (T$0.Uint32List = dart.constFn(dart_rti.findType("typed_data|Uint32List")))(),
    intToNativeUint32List: () => (T$0.intToNativeUint32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint32List(core|int)")))(),
    ListOfintToNativeUint32List: () => (T$0.ListOfintToNativeUint32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint32List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToNativeUint32List: () => (T$0.ByteBufferAndintAndintNToNativeUint32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint32List(typed_data|ByteBuffer,core|int,core|int?)")))(),
    VoidToUint32List: () => (T$0.VoidToUint32List = dart.constFn(dart_rti.findType("typed_data|Uint32List()")))(),
    intAndintNToUint32List$1: () => (T$0.intAndintNToUint32List$1 = dart.constFn(dart_rti.findType("typed_data|Uint32List(core|int[core|int?])")))(),
    dynamicToNativeUint32List: () => (T$0.dynamicToNativeUint32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint32List(@)")))(),
    dynamicAnddynamicAnddynamicToNativeUint32List: () => (T$0.dynamicAnddynamicAnddynamicToNativeUint32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint32List(@,@,@)")))(),
    Uint8ClampedList: () => (T$0.Uint8ClampedList = dart.constFn(dart_rti.findType("typed_data|Uint8ClampedList")))(),
    intToNativeUint8ClampedList: () => (T$0.intToNativeUint8ClampedList = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8ClampedList(core|int)")))(),
    ListOfintToNativeUint8ClampedList: () => (T$0.ListOfintToNativeUint8ClampedList = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8ClampedList(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToNativeUint8ClampedList: () => (T$0.ByteBufferAndintAndintNToNativeUint8ClampedList = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8ClampedList(typed_data|ByteBuffer,core|int,core|int?)")))(),
    VoidToUint8ClampedList: () => (T$0.VoidToUint8ClampedList = dart.constFn(dart_rti.findType("typed_data|Uint8ClampedList()")))(),
    intAndintNToUint8ClampedList$1: () => (T$0.intAndintNToUint8ClampedList$1 = dart.constFn(dart_rti.findType("typed_data|Uint8ClampedList(core|int[core|int?])")))(),
    dynamicToNativeUint8ClampedList: () => (T$0.dynamicToNativeUint8ClampedList = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8ClampedList(@)")))(),
    dynamicAnddynamicToNativeUint8ClampedList: () => (T$0.dynamicAnddynamicToNativeUint8ClampedList = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8ClampedList(@,@)")))(),
    dynamicAnddynamicAnddynamicToNativeUint8ClampedList: () => (T$0.dynamicAnddynamicAnddynamicToNativeUint8ClampedList = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8ClampedList(@,@,@)")))(),
    intToNativeUint8List: () => (T$0.intToNativeUint8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8List(core|int)")))(),
    ListOfintToNativeUint8List: () => (T$0.ListOfintToNativeUint8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToNativeUint8List: () => (T$0.ByteBufferAndintAndintNToNativeUint8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8List(typed_data|ByteBuffer,core|int,core|int?)")))(),
    intAndintNToUint8List$1: () => (T$0.intAndintNToUint8List$1 = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|int[core|int?])")))(),
    dynamicToNativeUint8List: () => (T$0.dynamicToNativeUint8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8List(@)")))(),
    dynamicAnddynamicToNativeUint8List: () => (T$0.dynamicAnddynamicToNativeUint8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8List(@,@)")))(),
    dynamicAnddynamicAnddynamicToNativeUint8List: () => (T$0.dynamicAnddynamicAnddynamicToNativeUint8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8List(@,@,@)")))(),
    dynamicTodouble: () => (T$0.dynamicTodouble = dart.constFn(dart_rti.findType("core|double(@)")))(),
    Int32x4ToNativeFloat32x4: () => (T$0.Int32x4ToNativeFloat32x4 = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat32x4(typed_data|Int32x4)")))(),
    Float32x4ToFloat32x4: () => (T$0.Float32x4ToFloat32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4(typed_data|Float32x4)")))(),
    VoidToFloat32x4: () => (T$0.VoidToFloat32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4()")))(),
    Float32x4ToInt32x4: () => (T$0.Float32x4ToInt32x4 = dart.constFn(dart_rti.findType("typed_data|Int32x4(typed_data|Float32x4)")))(),
    doubleToFloat32x4: () => (T$0.doubleToFloat32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4(core|double)")))(),
    Float32x4AndFloat32x4ToFloat32x4: () => (T$0.Float32x4AndFloat32x4ToFloat32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4(typed_data|Float32x4,typed_data|Float32x4)")))(),
    Float32x4AndintToFloat32x4: () => (T$0.Float32x4AndintToFloat32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4(typed_data|Float32x4,core|int)")))(),
    NativeFloat32List: () => (T$0.NativeFloat32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat32List")))(),
    dynamicToint: () => (T$0.dynamicToint = dart.constFn(dart_rti.findType("core|int(@)")))(),
    Float32x4ToNativeInt32x4: () => (T$0.Float32x4ToNativeInt32x4 = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt32x4(typed_data|Float32x4)")))(),
    Int32x4ToInt32x4: () => (T$0.Int32x4ToInt32x4 = dart.constFn(dart_rti.findType("typed_data|Int32x4(typed_data|Int32x4)")))(),
    VoidToInt32x4: () => (T$0.VoidToInt32x4 = dart.constFn(dart_rti.findType("typed_data|Int32x4()")))(),
    Int32x4AndintToInt32x4: () => (T$0.Int32x4AndintToInt32x4 = dart.constFn(dart_rti.findType("typed_data|Int32x4(typed_data|Int32x4,core|int)")))(),
    boolToInt32x4: () => (T$0.boolToInt32x4 = dart.constFn(dart_rti.findType("typed_data|Int32x4(core|bool)")))(),
    NativeInt32List: () => (T$0.NativeInt32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt32List")))(),
    Float64x2ToFloat64x2: () => (T$0.Float64x2ToFloat64x2 = dart.constFn(dart_rti.findType("typed_data|Float64x2(typed_data|Float64x2)")))(),
    VoidToFloat64x2: () => (T$0.VoidToFloat64x2 = dart.constFn(dart_rti.findType("typed_data|Float64x2()")))(),
    doubleToFloat64x2: () => (T$0.doubleToFloat64x2 = dart.constFn(dart_rti.findType("typed_data|Float64x2(core|double)")))(),
    Float64x2AndFloat64x2ToFloat64x2: () => (T$0.Float64x2AndFloat64x2ToFloat64x2 = dart.constFn(dart_rti.findType("typed_data|Float64x2(typed_data|Float64x2,typed_data|Float64x2)")))(),
    NativeFloat64List: () => (T$0.NativeFloat64List = dart.constFn(dart_rti.findType("_native_typed_data|NativeFloat64List")))(),
    intAnddoubleAndEndianTovoid: () => (T$0.intAnddoubleAndEndianTovoid = dart.constFn(dart_rti.findType("~(core|int,core|double[typed_data|Endian])")))(),
    _UnmodifiableUint8ListView: () => (T$0._UnmodifiableUint8ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableUint8ListView")))(),
    intToUint8List: () => (T$0.intToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|int)")))(),
    _UnmodifiableInt8ListView: () => (T$0._UnmodifiableInt8ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableInt8ListView")))(),
    intToInt8List: () => (T$0.intToInt8List = dart.constFn(dart_rti.findType("typed_data|Int8List(core|int)")))(),
    _UnmodifiableUint8ClampedListView: () => (T$0._UnmodifiableUint8ClampedListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableUint8ClampedListView")))(),
    intToUint8ClampedList: () => (T$0.intToUint8ClampedList = dart.constFn(dart_rti.findType("typed_data|Uint8ClampedList(core|int)")))(),
    _UnmodifiableUint16ListView: () => (T$0._UnmodifiableUint16ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableUint16ListView")))(),
    intToUint16List: () => (T$0.intToUint16List = dart.constFn(dart_rti.findType("typed_data|Uint16List(core|int)")))(),
    _UnmodifiableInt16ListView: () => (T$0._UnmodifiableInt16ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableInt16ListView")))(),
    intToInt16List: () => (T$0.intToInt16List = dart.constFn(dart_rti.findType("typed_data|Int16List(core|int)")))(),
    _UnmodifiableUint32ListView: () => (T$0._UnmodifiableUint32ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableUint32ListView")))(),
    intToUint32List: () => (T$0.intToUint32List = dart.constFn(dart_rti.findType("typed_data|Uint32List(core|int)")))(),
    _UnmodifiableInt32ListView: () => (T$0._UnmodifiableInt32ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableInt32ListView")))(),
    intToInt32List: () => (T$0.intToInt32List = dart.constFn(dart_rti.findType("typed_data|Int32List(core|int)")))(),
    _UnmodifiableUint64ListView: () => (T$0._UnmodifiableUint64ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableUint64ListView")))(),
    intToUint64List: () => (T$0.intToUint64List = dart.constFn(dart_rti.findType("typed_data|Uint64List(core|int)")))(),
    Uint64List: () => (T$0.Uint64List = dart.constFn(dart_rti.findType("typed_data|Uint64List")))(),
    _UnmodifiableInt64ListView: () => (T$0._UnmodifiableInt64ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableInt64ListView")))(),
    intToInt64List: () => (T$0.intToInt64List = dart.constFn(dart_rti.findType("typed_data|Int64List(core|int)")))(),
    Int64List: () => (T$0.Int64List = dart.constFn(dart_rti.findType("typed_data|Int64List")))(),
    _UnmodifiableInt32x4ListView: () => (T$0._UnmodifiableInt32x4ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableInt32x4ListView")))(),
    intToInt32x4List: () => (T$0.intToInt32x4List = dart.constFn(dart_rti.findType("typed_data|Int32x4List(core|int)")))(),
    _UnmodifiableFloat32x4ListView: () => (T$0._UnmodifiableFloat32x4ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableFloat32x4ListView")))(),
    intToFloat32x4List: () => (T$0.intToFloat32x4List = dart.constFn(dart_rti.findType("typed_data|Float32x4List(core|int)")))(),
    _UnmodifiableFloat64x2ListView: () => (T$0._UnmodifiableFloat64x2ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableFloat64x2ListView")))(),
    intToFloat64x2List: () => (T$0.intToFloat64x2List = dart.constFn(dart_rti.findType("typed_data|Float64x2List(core|int)")))(),
    _UnmodifiableFloat32ListView: () => (T$0._UnmodifiableFloat32ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableFloat32ListView")))(),
    intToFloat32List: () => (T$0.intToFloat32List = dart.constFn(dart_rti.findType("typed_data|Float32List(core|int)")))(),
    _UnmodifiableFloat64ListView: () => (T$0._UnmodifiableFloat64ListView = dart.constFn(dart_rti.findType("_native_typed_data|_UnmodifiableFloat64ListView")))(),
    intToFloat64List: () => (T$0.intToFloat64List = dart.constFn(dart_rti.findType("typed_data|Float64List(core|int)")))(),
    NativeByteBuffer: () => (T$0.NativeByteBuffer = dart.constFn(dart_rti.findType("_native_typed_data|NativeByteBuffer")))(),
    JSIndexable: () => (T$0.JSIndexable = dart.constFn(dart_rti.findType("_interceptors|JSIndexable<@>")))(),
    ObjectNTovoid$1: () => (T$0.ObjectNTovoid$1 = dart.constFn(dart_rti.findType("~([core|Object?])")))(),
    _Future: () => (T$0._Future = dart.constFn(dart_rti.findType("async|_Future<@>")))(),
    Future: () => (T$0.Future = dart.constFn(dart_rti.findType("async|Future<@>")))(),
    dynamicToNull: () => (T$0.dynamicToNull = dart.constFn(dart_rti.findType("core|Null(@)")))(),
    CompleterN: () => (T$0.CompleterN = dart.constFn(dart_rti.findType("async|Completer<@>?")))(),
    ObjectAndStackTraceToNNull: () => (T$0.ObjectAndStackTraceToNNull = dart.constFn(dart_rti.findType("core|Null(core|Object,core|StackTrace)?")))(),
    ObjectNToNvoid: () => (T$0.ObjectNToNvoid = dart.constFn(dart_rti.findType("~([core|Object?])?")))(),
    ObjectToStackTrace: () => (T$0.ObjectToStackTrace = dart.constFn(dart_rti.findType("core|StackTrace(core|Object)")))(),
    _ControllerStream: () => (T$0._ControllerStream = dart.constFn(dart_rti.findType("async|_ControllerStream<@>")))(),
    StreamSubscriptionTovoid: () => (T$0.StreamSubscriptionTovoid = dart.constFn(dart_rti.findType("~(async|StreamSubscription<@>)")))(),
    ZoneAndFnToFn: () => (T$0.ZoneAndFnToFn = dart.constFn(dart_rti.findType("~(0^)(async|Zone,~(0^)?)<core|Object?>")))(),
    ZoneAndFunctionNToFunction: () => (T$0.ZoneAndFunctionNToFunction = dart.constFn(dart_rti.findType("core|Function(async|Zone,core|Function?)")))(),
    ZoneAndFnToFn$1: () => (T$0.ZoneAndFnToFn$1 = dart.constFn(dart_rti.findType("~()(async|Zone,~()?)")))(),
    FutureNOfvoidTovoid: () => (T$0.FutureNOfvoidTovoid = dart.constFn(dart_rti.findType("~([async|Future<~>?])")))(),
    VoidToFutureNOfvoid: () => (T$0.VoidToFutureNOfvoid = dart.constFn(dart_rti.findType("async|Future<~>?()")))(),
    _DelayedEventTovoid: () => (T$0._DelayedEventTovoid = dart.constFn(dart_rti.findType("~(async|_DelayedEvent<@>)")))()
  };
  var T$1 = {
    FnTovoid$18: () => (T$1.FnTovoid$18 = dart.constFn(dart_rti.findType("~(~())")))(),
    boolTovoid: () => (T$1.boolTovoid = dart.constFn(dart_rti.findType("~(core|bool)")))(),
    FutureN: () => (T$1.FutureN = dart.constFn(dart_rti.findType("async|Future<@>?")))(),
    VoidToNvoid: () => (T$1.VoidToNvoid = dart.constFn(dart_rti.findType("~()?")))(),
    VoidTo_FutureOfvoid: () => (T$1.VoidTo_FutureOfvoid = dart.constFn(dart_rti.findType("async|_Future<~>()")))(),
    ObjectAndStackTraceNTovoid: () => (T$1.ObjectAndStackTraceNTovoid = dart.constFn(dart_rti.findType("~(core|Object[core|StackTrace?])")))(),
    FutureOfvoid: () => (T$1.FutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>")))(),
    ObjectN__ToFuture: () => (T$1.ObjectN__ToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|Object?{cancelOnError:core|bool?})")))(),
    _FutureNOfvoid: () => (T$1._FutureNOfvoid = dart.constFn(dart_rti.findType("async|_Future<~>?")))(),
    VoidToFutureOrOfbool: () => (T$1.VoidToFutureOrOfbool = dart.constFn(dart_rti.findType("core|bool/()")))(),
    FnToFutureOfT: () => (T$1.FnToFutureOfT = dart.constFn(dart_rti.findType("async|Future<0^>(0^/())<core|Object?>")))(),
    FutureOrNOfTToFutureOfT: () => (T$1.FutureOrNOfTToFutureOfT = dart.constFn(dart_rti.findType("async|Future<0^>([0^/?])<core|Object?>")))(),
    ObjectAndStackTraceNToFutureOfT: () => (T$1.ObjectAndStackTraceNToFutureOfT = dart.constFn(dart_rti.findType("async|Future<0^>(core|Object[core|StackTrace?])<core|Object?>")))(),
    DurationAndFnToFutureOfT: () => (T$1.DurationAndFnToFutureOfT = dart.constFn(dart_rti.findType("async|Future<0^>(core|Duration[0^/()?])<core|Object?>")))(),
    IterableOfFutureOfT__ToFutureOfListOfT: () => (T$1.IterableOfFutureOfT__ToFutureOfListOfT = dart.constFn(dart_rti.findType("async|Future<core|List<0^>>(core|Iterable<async|Future<0^>>{cleanUp:~(0^)?,eagerError:core|bool})<core|Object?>")))(),
    IterableOfFutureOfTToFutureOfT: () => (T$1.IterableOfFutureOfTToFutureOfT = dart.constFn(dart_rti.findType("async|Future<0^>(core|Iterable<async|Future<0^>>)<core|Object?>")))(),
    IterableOfTAndFnToFutureOfvoid: () => (T$1.IterableOfTAndFnToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(core|Iterable<0^>,@(0^))<core|Object?>")))(),
    FnToFutureOfvoid$1: () => (T$1.FnToFutureOfvoid$1 = dart.constFn(dart_rti.findType("async|Future<~>(core|bool/())")))(),
    _FutureOfNull: () => (T$1._FutureOfNull = dart.constFn(dart_rti.findType("async|_Future<core|Null>")))(),
    _FutureOfbool: () => (T$1._FutureOfbool = dart.constFn(dart_rti.findType("async|_Future<core|bool>")))(),
    DurationN: () => (T$1.DurationN = dart.constFn(dart_rti.findType("core|Duration?")))(),
    VoidToCompleterOfT: () => (T$1.VoidToCompleterOfT = dart.constFn(dart_rti.findType("async|Completer<0^>()<core|Object?>")))(),
    AsyncErrorN: () => (T$1.AsyncErrorN = dart.constFn(dart_rti.findType("async|AsyncError?")))(),
    ListOf_FutureResultAndFnTovoid: () => (T$1.ListOf_FutureResultAndFnTovoid = dart.constFn(dart_rti.findType("~(core|List<async|_FutureResult<@>>,~(core|int))")))(),
    ObjectAndStackTraceTodynamic: () => (T$1.ObjectAndStackTraceTodynamic = dart.constFn(dart_rti.findType("@(core|Object,core|StackTrace)")))(),
    ObjectTodynamic: () => (T$1.ObjectTodynamic = dart.constFn(dart_rti.findType("@(core|Object)")))(),
    TypeError: () => (T$1.TypeError = dart.constFn(dart_rti.findType("core|TypeError")))(),
    _Zone: () => (T$1._Zone = dart.constFn(dart_rti.findType("async|_Zone")))(),
    AsyncErrorTobool: () => (T$1.AsyncErrorTobool = dart.constFn(dart_rti.findType("core|bool(async|AsyncError)")))(),
    FutureTobool: () => (T$1.FutureTobool = dart.constFn(dart_rti.findType("core|bool(async|Future<@>)")))(),
    _FutureListenerN: () => (T$1._FutureListenerN = dart.constFn(dart_rti.findType("async|_FutureListener<@,@>?")))(),
    AsyncError: () => (T$1.AsyncError = dart.constFn(dart_rti.findType("async|AsyncError")))(),
    dynamicTo_Future: () => (T$1.dynamicTo_Future = dart.constFn(dart_rti.findType("async|_Future<@>(@)")))(),
    _FutureTovoid: () => (T$1._FutureTovoid = dart.constFn(dart_rti.findType("~(async|_Future<@>)")))(),
    FnToFutureOfR: () => (T$1.FnToFutureOfR = dart.constFn(dart_rti.findType("async|Future<0^>(0^/(core|Object,core|StackTrace))<core|Object?>")))(),
    AsyncErrorTovoid: () => (T$1.AsyncErrorTovoid = dart.constFn(dart_rti.findType("~(async|AsyncError)")))(),
    _FutureListenerTovoid: () => (T$1._FutureListenerTovoid = dart.constFn(dart_rti.findType("~(async|_FutureListener<@,@>)")))(),
    _FutureListenerNTovoid: () => (T$1._FutureListenerNTovoid = dart.constFn(dart_rti.findType("~(async|_FutureListener<@,@>?)")))(),
    VoidTo_FutureListenerN: () => (T$1.VoidTo_FutureListenerN = dart.constFn(dart_rti.findType("async|_FutureListener<@,@>?()")))(),
    _FutureListenerNTo_FutureListenerN: () => (T$1._FutureListenerNTo_FutureListenerN = dart.constFn(dart_rti.findType("async|_FutureListener<@,@>?(async|_FutureListener<@,@>?)")))(),
    FutureTovoid: () => (T$1.FutureTovoid = dart.constFn(dart_rti.findType("~(async|Future<@>)")))(),
    _FutureAnd_FutureTovoid: () => (T$1._FutureAnd_FutureTovoid = dart.constFn(dart_rti.findType("~(async|_Future<@>,async|_Future<@>)")))(),
    _FutureAnd_FutureListenerNTovoid: () => (T$1._FutureAnd_FutureListenerNTovoid = dart.constFn(dart_rti.findType("~(async|_Future<@>,async|_FutureListener<@,@>?)")))(),
    _AsyncCallbackEntryN: () => (T$1._AsyncCallbackEntryN = dart.constFn(dart_rti.findType("async|_AsyncCallbackEntry?")))(),
    VoidToFn: () => (T$1.VoidToFn = dart.constFn(dart_rti.findType("~(~())()")))(),
    FnToStreamTransformerOfS$T: () => (T$1.FnToStreamTransformerOfS$T = dart.constFn(dart_rti.findType("async|StreamTransformer<0^,1^>(async|StreamSubscription<1^>(async|Stream<0^>,core|bool))<core|Object?,core|Object?>")))(),
    __ToStreamTransformerOfS$T: () => (T$1.__ToStreamTransformerOfS$T = dart.constFn(dart_rti.findType("async|StreamTransformer<0^,1^>({handleData:~(0^,async|EventSink<1^>)?,handleDone:~(async|EventSink<1^>)?,handleError:~(core|Object,core|StackTrace,async|EventSink<1^>)?})<core|Object?,core|Object?>")))(),
    FnToStreamTransformerOfS$T$1: () => (T$1.FnToStreamTransformerOfS$T$1 = dart.constFn(dart_rti.findType("async|StreamTransformer<0^,1^>(async|Stream<1^>(async|Stream<0^>))<core|Object?,core|Object?>")))(),
    StreamTransformerOfSS$STToStreamTransformerOfTS$TT: () => (T$1.StreamTransformerOfSS$STToStreamTransformerOfTS$TT = dart.constFn(dart_rti.findType("async|StreamTransformer<2^,3^>(async|StreamTransformer<0^,1^>)<core|Object?,core|Object?,core|Object?,core|Object?>")))(),
    StreamOfTToStreamIteratorOfT: () => (T$1.StreamOfTToStreamIteratorOfT = dart.constFn(dart_rti.findType("async|StreamIterator<0^>(async|Stream<0^>)<core|Object?>")))(),
    VoidToEventSink: () => (T$1.VoidToEventSink = dart.constFn(dart_rti.findType("async|EventSink<@>()")))(),
    EventSinkN: () => (T$1.EventSinkN = dart.constFn(dart_rti.findType("async|EventSink<@>?")))(),
    __ToStreamControllerOfT: () => (T$1.__ToStreamControllerOfT = dart.constFn(dart_rti.findType("async|StreamController<0^>({onCancel:~()?,onListen:~()?,onPause:~()?,onResume:~()?,sync:core|bool})<core|Object?>")))(),
    __ToStreamControllerOfT$1: () => (T$1.__ToStreamControllerOfT$1 = dart.constFn(dart_rti.findType("async|StreamController<0^>({onCancel:~()?,onListen:~()?,sync:core|bool})<core|Object?>")))(),
    ObjectNToFutureNOfvoid: () => (T$1.ObjectNToFutureNOfvoid = dart.constFn(dart_rti.findType("async|Future<~>?(core|Object?)")))(),
    _StreamControllerAddStreamStateOfObjectN: () => (T$1._StreamControllerAddStreamStateOfObjectN = dart.constFn(dart_rti.findType("async|_StreamControllerAddStreamState<core|Object?>")))(),
    StreamController: () => (T$1.StreamController = dart.constFn(dart_rti.findType("async|StreamController<@>")))(),
    _EventSinkTodynamic: () => (T$1._EventSinkTodynamic = dart.constFn(dart_rti.findType("@(async|_EventSink<@>)")))(),
    StreamSubscription: () => (T$1.StreamSubscription = dart.constFn(dart_rti.findType("async|StreamSubscription<@>")))(),
    _DelayedEventN: () => (T$1._DelayedEventN = dart.constFn(dart_rti.findType("async|_DelayedEvent<@>?")))(),
    _DelayedError: () => (T$1._DelayedError = dart.constFn(dart_rti.findType("async|_DelayedError")))(),
    _EventDispatch: () => (T$1._EventDispatch = dart.constFn(dart_rti.findType("async|_EventDispatch<@>")))(),
    FutureNOfvoidTovoid$1: () => (T$1.FutureNOfvoidTovoid$1 = dart.constFn(dart_rti.findType("~(async|Future<~>?)")))(),
    _AsBroadcastStream: () => (T$1._AsBroadcastStream = dart.constFn(dart_rti.findType("async|_AsBroadcastStream<@>")))(),
    VoidToFutureOfbool: () => (T$1.VoidToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>()")))(),
    ObjectAndStackTraceAndObjectNTovoid: () => (T$1.ObjectAndStackTraceAndObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Object,core|StackTrace,core|Object?)")))(),
    dynamicAndStackTraceTovoid: () => (T$1.dynamicAndStackTraceTovoid = dart.constFn(dart_rti.findType("~(@,core|StackTrace)")))(),
    ObjectToNbool: () => (T$1.ObjectToNbool = dart.constFn(dart_rti.findType("core|bool(core|Object)?")))(),
    Timer: () => (T$1.Timer = dart.constFn(dart_rti.findType("async|Timer")))(),
    DurationAndFnToTimer: () => (T$1.DurationAndFnToTimer = dart.constFn(dart_rti.findType("async|Timer(core|Duration,~())")))(),
    DurationAndFnToTimer$1: () => (T$1.DurationAndFnToTimer$1 = dart.constFn(dart_rti.findType("async|Timer(core|Duration,~(async|Timer))")))(),
    __ToZoneSpecification: () => (T$1.__ToZoneSpecification = dart.constFn(dart_rti.findType("async|ZoneSpecification({createPeriodicTimer:async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~(async|Timer))?,createTimer:async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~())?,errorCallback:async|AsyncError?(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace?)?,fork:async|Zone(async|Zone,async|ZoneDelegate,async|Zone,async|ZoneSpecification?,core|Map<core|Object?,core|Object?>?)?,handleUncaughtError:~(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace)?,print:~(async|Zone,async|ZoneDelegate,async|Zone,core|String)?,registerBinaryCallback:0^(1^,2^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^))<core|Object?,core|Object?,core|Object?>?,registerCallback:0^()(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>?,registerUnaryCallback:0^(1^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^))<core|Object?,core|Object?>?,run:0^(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>?,runBinary:0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^),1^,2^)<core|Object?,core|Object?,core|Object?>?,runUnary:0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^),1^)<core|Object?,core|Object?>?,scheduleMicrotask:~(async|Zone,async|ZoneDelegate,async|Zone,~())?})")))(),
    ZoneSpecification__ToZoneSpecification: () => (T$1.ZoneSpecification__ToZoneSpecification = dart.constFn(dart_rti.findType("async|ZoneSpecification(async|ZoneSpecification{createPeriodicTimer:async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~(async|Timer))?,createTimer:async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~())?,errorCallback:async|AsyncError?(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace?)?,fork:async|Zone(async|Zone,async|ZoneDelegate,async|Zone,async|ZoneSpecification?,core|Map<core|Object?,core|Object?>?)?,handleUncaughtError:~(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace)?,print:~(async|Zone,async|ZoneDelegate,async|Zone,core|String)?,registerBinaryCallback:0^(1^,2^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^))<core|Object?,core|Object?,core|Object?>?,registerCallback:0^()(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>?,registerUnaryCallback:0^(1^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^))<core|Object?,core|Object?>?,run:0^(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>?,runBinary:0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^),1^,2^)<core|Object?,core|Object?,core|Object?>?,runUnary:0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^),1^)<core|Object?,core|Object?>?,scheduleMicrotask:~(async|Zone,async|ZoneDelegate,async|Zone,~())?})")))(),
    ZoneAndZoneDelegateAndZone__ToNvoid: () => (T$1.ZoneAndZoneDelegateAndZone__ToNvoid = dart.constFn(dart_rti.findType("~(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace)?")))(),
    ZoneAndZoneDelegateAndZone__ToNR: () => (T$1.ZoneAndZoneDelegateAndZone__ToNR = dart.constFn(dart_rti.findType("0^(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>?")))(),
    ZoneAndZoneDelegateAndZone__ToNR$1: () => (T$1.ZoneAndZoneDelegateAndZone__ToNR$1 = dart.constFn(dart_rti.findType("0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^),1^)<core|Object?,core|Object?>?")))(),
    ZoneAndZoneDelegateAndZone__ToNR$2: () => (T$1.ZoneAndZoneDelegateAndZone__ToNR$2 = dart.constFn(dart_rti.findType("0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^),1^,2^)<core|Object?,core|Object?,core|Object?>?")))(),
    ZoneAndZoneDelegateAndZone__ToNFn: () => (T$1.ZoneAndZoneDelegateAndZone__ToNFn = dart.constFn(dart_rti.findType("0^()(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>?")))(),
    ZoneAndZoneDelegateAndZone__ToNFn$1: () => (T$1.ZoneAndZoneDelegateAndZone__ToNFn$1 = dart.constFn(dart_rti.findType("0^(1^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^))<core|Object?,core|Object?>?")))(),
    ZoneAndZoneDelegateAndZone__ToNFn$2: () => (T$1.ZoneAndZoneDelegateAndZone__ToNFn$2 = dart.constFn(dart_rti.findType("0^(1^,2^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^))<core|Object?,core|Object?,core|Object?>?")))(),
    ZoneAndZoneDelegateAndZone__ToNAsyncErrorN: () => (T$1.ZoneAndZoneDelegateAndZone__ToNAsyncErrorN = dart.constFn(dart_rti.findType("async|AsyncError?(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace?)?")))(),
    ZoneAndZoneDelegateAndZone__ToNvoid$1: () => (T$1.ZoneAndZoneDelegateAndZone__ToNvoid$1 = dart.constFn(dart_rti.findType("~(async|Zone,async|ZoneDelegate,async|Zone,~())?")))(),
    ZoneAndZoneDelegateAndZone__ToNTimer: () => (T$1.ZoneAndZoneDelegateAndZone__ToNTimer = dart.constFn(dart_rti.findType("async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~())?")))(),
    ZoneAndZoneDelegateAndZone__ToNTimer$1: () => (T$1.ZoneAndZoneDelegateAndZone__ToNTimer$1 = dart.constFn(dart_rti.findType("async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~(async|Timer))?")))(),
    ZoneAndZoneDelegateAndZone__ToNvoid$2: () => (T$1.ZoneAndZoneDelegateAndZone__ToNvoid$2 = dart.constFn(dart_rti.findType("~(async|Zone,async|ZoneDelegate,async|Zone,core|String)?")))(),
    ZoneAndZoneDelegateAndZone__ToNZone: () => (T$1.ZoneAndZoneDelegateAndZone__ToNZone = dart.constFn(dart_rti.findType("async|Zone(async|Zone,async|ZoneDelegate,async|Zone,async|ZoneSpecification?,core|Map<core|Object?,core|Object?>?)?")))(),
    _ZoneTo_Zone: () => (T$1._ZoneTo_Zone = dart.constFn(dart_rti.findType("async|_Zone(async|_Zone)")))(),
    _ZoneTovoid: () => (T$1._ZoneTovoid = dart.constFn(dart_rti.findType("~(async|_Zone)")))(),
    ZoneAndObjectAndStackTraceTovoid: () => (T$1.ZoneAndObjectAndStackTraceTovoid = dart.constFn(dart_rti.findType("~(async|Zone,core|Object,core|StackTrace)")))(),
    ZoneAndFnToR: () => (T$1.ZoneAndFnToR = dart.constFn(dart_rti.findType("0^(async|Zone,0^())<core|Object?>")))(),
    ZoneAndFnAndTToR: () => (T$1.ZoneAndFnAndTToR = dart.constFn(dart_rti.findType("0^(async|Zone,0^(1^),1^)<core|Object?,core|Object?>")))(),
    ZoneAndFnAndT1__ToR: () => (T$1.ZoneAndFnAndT1__ToR = dart.constFn(dart_rti.findType("0^(async|Zone,0^(1^,2^),1^,2^)<core|Object?,core|Object?,core|Object?>")))(),
    ZoneAndFnToFn$2: () => (T$1.ZoneAndFnToFn$2 = dart.constFn(dart_rti.findType("0^()(async|Zone,0^())<core|Object?>")))(),
    ZoneAndFnToFn$3: () => (T$1.ZoneAndFnToFn$3 = dart.constFn(dart_rti.findType("0^(1^)(async|Zone,0^(1^))<core|Object?,core|Object?>")))(),
    ZoneAndFnToFn$4: () => (T$1.ZoneAndFnToFn$4 = dart.constFn(dart_rti.findType("0^(1^,2^)(async|Zone,0^(1^,2^))<core|Object?,core|Object?,core|Object?>")))(),
    ZoneAndObjectAndStackTraceNToAsyncErrorN: () => (T$1.ZoneAndObjectAndStackTraceNToAsyncErrorN = dart.constFn(dart_rti.findType("async|AsyncError?(async|Zone,core|Object,core|StackTrace?)")))(),
    ZoneAndFnTovoid: () => (T$1.ZoneAndFnTovoid = dart.constFn(dart_rti.findType("~(async|Zone,@())")))(),
    ZoneAndDurationAndFnToTimer: () => (T$1.ZoneAndDurationAndFnToTimer = dart.constFn(dart_rti.findType("async|Timer(async|Zone,core|Duration,~())")))(),
    ZoneAndDurationAndFnToTimer$1: () => (T$1.ZoneAndDurationAndFnToTimer$1 = dart.constFn(dart_rti.findType("async|Timer(async|Zone,core|Duration,~(async|Timer))")))(),
    ZoneAndStringTovoid: () => (T$1.ZoneAndStringTovoid = dart.constFn(dart_rti.findType("~(async|Zone,core|String)")))(),
    ZoneAndZoneSpecificationNAndMapNOfObjectN$ObjectNToZone: () => (T$1.ZoneAndZoneSpecificationNAndMapNOfObjectN$ObjectNToZone = dart.constFn(dart_rti.findType("async|Zone(async|Zone,async|ZoneSpecification?,core|Map<core|Object?,core|Object?>?)")))(),
    ZoneTobool: () => (T$1.ZoneTobool = dart.constFn(dart_rti.findType("core|bool(async|Zone)")))(),
    ZoneAndZoneDelegateAndZone__ToR: () => (T$1.ZoneAndZoneDelegateAndZone__ToR = dart.constFn(dart_rti.findType("0^(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>")))(),
    ZoneAndZoneDelegateAndZone__ToR$1: () => (T$1.ZoneAndZoneDelegateAndZone__ToR$1 = dart.constFn(dart_rti.findType("0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^),1^)<core|Object?,core|Object?>")))(),
    ZoneAndZoneDelegateAndZone__ToR$2: () => (T$1.ZoneAndZoneDelegateAndZone__ToR$2 = dart.constFn(dart_rti.findType("0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^),1^,2^)<core|Object?,core|Object?,core|Object?>")))(),
    ZoneAndZoneDelegateAndZone__ToFn: () => (T$1.ZoneAndZoneDelegateAndZone__ToFn = dart.constFn(dart_rti.findType("0^()(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>")))(),
    ZoneAndZoneDelegateAndZone__ToFn$1: () => (T$1.ZoneAndZoneDelegateAndZone__ToFn$1 = dart.constFn(dart_rti.findType("0^(1^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^))<core|Object?,core|Object?>")))(),
    ZoneAndZoneDelegateAndZone__ToFn$2: () => (T$1.ZoneAndZoneDelegateAndZone__ToFn$2 = dart.constFn(dart_rti.findType("0^(1^,2^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^))<core|Object?,core|Object?,core|Object?>")))(),
    ZoneAndZoneDelegateAndZone__ToAsyncErrorN: () => (T$1.ZoneAndZoneDelegateAndZone__ToAsyncErrorN = dart.constFn(dart_rti.findType("async|AsyncError?(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace?)")))(),
    ZoneAndZoneDelegateAndZone__Tovoid: () => (T$1.ZoneAndZoneDelegateAndZone__Tovoid = dart.constFn(dart_rti.findType("~(async|Zone,async|ZoneDelegate,async|Zone,~())")))(),
    ZoneAndZoneDelegateAndZone__ToTimer: () => (T$1.ZoneAndZoneDelegateAndZone__ToTimer = dart.constFn(dart_rti.findType("async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~())")))(),
    ZoneAndZoneDelegateAndZone__ToTimer$1: () => (T$1.ZoneAndZoneDelegateAndZone__ToTimer$1 = dart.constFn(dart_rti.findType("async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~(async|Timer))")))(),
    ZoneAndZoneDelegateAndZone__Tovoid$1: () => (T$1.ZoneAndZoneDelegateAndZone__Tovoid$1 = dart.constFn(dart_rti.findType("~(async|Zone,async|ZoneDelegate,async|Zone,core|String)")))(),
    ZoneAndZoneDelegateAndZone__ToZone: () => (T$1.ZoneAndZoneDelegateAndZone__ToZone = dart.constFn(dart_rti.findType("async|Zone(async|Zone,async|ZoneDelegate,async|Zone,async|ZoneSpecification?,core|Map<core|Object?,core|Object?>?)")))(),
    ZoneAndZoneDelegateAndZone__Tovoid$2: () => (T$1.ZoneAndZoneDelegateAndZone__Tovoid$2 = dart.constFn(dart_rti.findType("~(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace)")))(),
    ZoneDelegate: () => (T$1.ZoneDelegate = dart.constFn(dart_rti.findType("async|ZoneDelegate")))(),
    FnAndTTovoid: () => (T$1.FnAndTTovoid = dart.constFn(dart_rti.findType("~(~(0^),0^)<core|Object?>")))(),
    FnAndT1AndT2Tovoid: () => (T$1.FnAndT1AndT2Tovoid = dart.constFn(dart_rti.findType("~(~(0^,1^),0^,1^)<core|Object?,core|Object?>")))(),
    FnToFn: () => (T$1.FnToFn = dart.constFn(dart_rti.findType("0^()(0^())<core|Object?>")))(),
    FnToFn$1: () => (T$1.FnToFn$1 = dart.constFn(dart_rti.findType("0^(1^)(0^(1^))<core|Object?,core|Object?>")))(),
    FnToFn$2: () => (T$1.FnToFn$2 = dart.constFn(dart_rti.findType("0^(1^,2^)(0^(1^,2^))<core|Object?,core|Object?,core|Object?>")))(),
    FnToFn$3: () => (T$1.FnToFn$3 = dart.constFn(dart_rti.findType("~()(~())")))(),
    FnToFn$4: () => (T$1.FnToFn$4 = dart.constFn(dart_rti.findType("~(0^)(~(0^))<core|Object?>")))(),
    FnToFn$5: () => (T$1.FnToFn$5 = dart.constFn(dart_rti.findType("~(0^,1^)(~(0^,1^))<core|Object?,core|Object?>")))(),
    ObjectNTodynamic: () => (T$1.ObjectNTodynamic = dart.constFn(dart_rti.findType("@(core|Object?)")))(),
    __ToZone: () => (T$1.__ToZone = dart.constFn(dart_rti.findType("async|Zone({specification:async|ZoneSpecification?,zoneValues:core|Map<core|Object?,core|Object?>?})")))(),
    FnToR: () => (T$1.FnToR = dart.constFn(dart_rti.findType("0^(0^())<core|Object?>")))(),
    FnAndTToR: () => (T$1.FnAndTToR = dart.constFn(dart_rti.findType("0^(0^(1^),1^)<core|Object?,core|Object?>")))(),
    FnAndT1AndT2ToR: () => (T$1.FnAndT1AndT2ToR = dart.constFn(dart_rti.findType("0^(0^(1^,2^),1^,2^)<core|Object?,core|Object?,core|Object?>")))(),
    ObjectAndStackTraceNToAsyncErrorN: () => (T$1.ObjectAndStackTraceNToAsyncErrorN = dart.constFn(dart_rti.findType("async|AsyncError?(core|Object,core|StackTrace?)")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$1: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$1 = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^),1^)<core|Object?,core|Object?>>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$2: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$2 = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^),1^,2^)<core|Object?,core|Object?,core|Object?>>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^()(async|Zone,async|ZoneDelegate,async|Zone,0^())<core|Object?>>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$1: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$1 = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^(1^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^))<core|Object?,core|Object?>>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$2: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$2 = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^(1^,2^)(async|Zone,async|ZoneDelegate,async|Zone,0^(1^,2^))<core|Object?,core|Object?,core|Object?>>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToAsyncErrorN: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToAsyncErrorN = dart.constFn(dart_rti.findType("async|_ZoneFunction<async|AsyncError?(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace?)>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid = dart.constFn(dart_rti.findType("async|_ZoneFunction<~(async|Zone,async|ZoneDelegate,async|Zone,~())>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer = dart.constFn(dart_rti.findType("async|_ZoneFunction<async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~())>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer$1: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer$1 = dart.constFn(dart_rti.findType("async|_ZoneFunction<async|Timer(async|Zone,async|ZoneDelegate,async|Zone,core|Duration,~(async|Timer))>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$1: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$1 = dart.constFn(dart_rti.findType("async|_ZoneFunction<~(async|Zone,async|ZoneDelegate,async|Zone,core|String)>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToZone: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToZone = dart.constFn(dart_rti.findType("async|_ZoneFunction<async|Zone(async|Zone,async|ZoneDelegate,async|Zone,async|ZoneSpecification?,core|Map<core|Object?,core|Object?>?)>")))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$2: () => (T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$2 = dart.constFn(dart_rti.findType("async|_ZoneFunction<~(async|Zone,async|ZoneDelegate,async|Zone,core|Object,core|StackTrace)>")))(),
    ZoneDelegateN: () => (T$1.ZoneDelegateN = dart.constFn(dart_rti.findType("async|ZoneDelegate?")))(),
    MapOfObjectN$ObjectN: () => (T$1.MapOfObjectN$ObjectN = dart.constFn(dart_rti.findType("core|Map<core|Object?,core|Object?>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLRL: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLRL = dart.constFn(dart_rti.findType("0^*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*()*)<core|Object?>*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*()*)<core|Object?>*>")))(),
    ZoneNAndZoneDelegateNAndZone__ToR: () => (T$1.ZoneNAndZoneDelegateNAndZone__ToR = dart.constFn(dart_rti.findType("0^(async|Zone?,async|ZoneDelegate?,async|Zone,0^())<core|Object?>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLRL$1: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLRL$1 = dart.constFn(dart_rti.findType("0^*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*(1^*)*,1^*)<core|Object?,core|Object?>*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$1: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$1 = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*(1^*)*,1^*)<core|Object?,core|Object?>*>")))(),
    ZoneNAndZoneDelegateNAndZone__ToR$1: () => (T$1.ZoneNAndZoneDelegateNAndZone__ToR$1 = dart.constFn(dart_rti.findType("0^(async|Zone?,async|ZoneDelegate?,async|Zone,0^(1^),1^)<core|Object?,core|Object?>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLRL$2: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLRL$2 = dart.constFn(dart_rti.findType("0^*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*(1^*,2^*)*,1^*,2^*)<core|Object?,core|Object?,core|Object?>*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$2: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$2 = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*(1^*,2^*)*,1^*,2^*)<core|Object?,core|Object?,core|Object?>*>")))(),
    ZoneNAndZoneDelegateNAndZone__ToR$2: () => (T$1.ZoneNAndZoneDelegateNAndZone__ToR$2 = dart.constFn(dart_rti.findType("0^(async|Zone?,async|ZoneDelegate?,async|Zone,0^(1^,2^),1^,2^)<core|Object?,core|Object?,core|Object?>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLFn: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLFn = dart.constFn(dart_rti.findType("0^*()*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*()*)<core|Object?>*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^*()*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*()*)<core|Object?>*>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLFn$1: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLFn$1 = dart.constFn(dart_rti.findType("0^*(1^*)*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*(1^*)*)<core|Object?,core|Object?>*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$1: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$1 = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^*(1^*)*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*(1^*)*)<core|Object?,core|Object?>*>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLFn$2: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLFn$2 = dart.constFn(dart_rti.findType("0^*(1^*,2^*)*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*(1^*,2^*)*)<core|Object?,core|Object?,core|Object?>*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$2: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$2 = dart.constFn(dart_rti.findType("async|_ZoneFunction<0^*(1^*,2^*)*(async|Zone*,async|ZoneDelegate*,async|Zone*,0^*(1^*,2^*)*)<core|Object?,core|Object?,core|Object?>*>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLAsyncErrorN: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLAsyncErrorN = dart.constFn(dart_rti.findType("async|AsyncError?(async|Zone*,async|ZoneDelegate*,async|Zone*,core|Object*,core|StackTrace?)*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLAsyncErrorN: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLAsyncErrorN = dart.constFn(dart_rti.findType("async|_ZoneFunction<async|AsyncError?(async|Zone*,async|ZoneDelegate*,async|Zone*,core|Object*,core|StackTrace?)*>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLvoid: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLvoid = dart.constFn(dart_rti.findType("~(async|Zone*,async|ZoneDelegate*,async|Zone*,~()*)*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid = dart.constFn(dart_rti.findType("async|_ZoneFunction<~(async|Zone*,async|ZoneDelegate*,async|Zone*,~()*)*>")))(),
    ZoneNAndZoneDelegateNAndZone__Tovoid: () => (T$1.ZoneNAndZoneDelegateNAndZone__Tovoid = dart.constFn(dart_rti.findType("~(async|Zone?,async|ZoneDelegate?,async|Zone,~())")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLTimerL: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLTimerL = dart.constFn(dart_rti.findType("async|Timer*(async|Zone*,async|ZoneDelegate*,async|Zone*,core|Duration*,~()*)*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL = dart.constFn(dart_rti.findType("async|_ZoneFunction<async|Timer*(async|Zone*,async|ZoneDelegate*,async|Zone*,core|Duration*,~()*)*>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLTimerL$1: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLTimerL$1 = dart.constFn(dart_rti.findType("async|Timer*(async|Zone*,async|ZoneDelegate*,async|Zone*,core|Duration*,~(async|Timer*)*)*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL$1: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL$1 = dart.constFn(dart_rti.findType("async|_ZoneFunction<async|Timer*(async|Zone*,async|ZoneDelegate*,async|Zone*,core|Duration*,~(async|Timer*)*)*>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLvoid$1: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLvoid$1 = dart.constFn(dart_rti.findType("~(async|Zone*,async|ZoneDelegate*,async|Zone*,core|String*)*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$1: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$1 = dart.constFn(dart_rti.findType("async|_ZoneFunction<~(async|Zone*,async|ZoneDelegate*,async|Zone*,core|String*)*>")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLZoneL: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLZoneL = dart.constFn(dart_rti.findType("async|Zone*(async|Zone*,async|ZoneDelegate*,async|Zone*,async|ZoneSpecification?,core|Map<core|Object?,core|Object?>?)*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLZoneL: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLZoneL = dart.constFn(dart_rti.findType("async|_ZoneFunction<async|Zone*(async|Zone*,async|ZoneDelegate*,async|Zone*,async|ZoneSpecification?,core|Map<core|Object?,core|Object?>?)*>")))(),
    ZoneNAndZoneDelegateNAndZone__ToZone: () => (T$1.ZoneNAndZoneDelegateNAndZone__ToZone = dart.constFn(dart_rti.findType("async|Zone(async|Zone?,async|ZoneDelegate?,async|Zone,async|ZoneSpecification?,core|Map<core|Object?,core|Object?>?)")))(),
    ZoneLAndZoneDelegateLAndZoneL__ToLvoid$2: () => (T$1.ZoneLAndZoneDelegateLAndZoneL__ToLvoid$2 = dart.constFn(dart_rti.findType("~(async|Zone*,async|ZoneDelegate*,async|Zone*,core|Object*,core|StackTrace*)*")))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$2: () => (T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$2 = dart.constFn(dart_rti.findType("async|_ZoneFunction<~(async|Zone*,async|ZoneDelegate*,async|Zone*,core|Object*,core|StackTrace*)*>")))(),
    ZoneNAndZoneDelegateNAndZone__Tovoid$1: () => (T$1.ZoneNAndZoneDelegateNAndZone__Tovoid$1 = dart.constFn(dart_rti.findType("~(async|Zone?,async|ZoneDelegate?,async|Zone,core|Object,core|StackTrace)")))(),
    _ZoneN: () => (T$1._ZoneN = dart.constFn(dart_rti.findType("async|_Zone?")))(),
    HashMap: () => (T$1.HashMap = dart.constFn(dart_rti.findType("collection|HashMap<@,@>")))(),
    ObjectNTo_FutureOfObjectN: () => (T$1.ObjectNTo_FutureOfObjectN = dart.constFn(dart_rti.findType("async|_Future<core|Object?>(core|Object?)")))(),
    ObjectAndStackTraceNToObject: () => (T$1.ObjectAndStackTraceNToObject = dart.constFn(dart_rti.findType("core|Object(core|Object,core|StackTrace?)")))(),
    _FutureOfObjectN: () => (T$1._FutureOfObjectN = dart.constFn(dart_rti.findType("async|_Future<core|Object?>")))(),
    ObjectNAndObjectNTovoid$1: () => (T$1.ObjectNAndObjectNTovoid$1 = dart.constFn(dart_rti.findType("~(core|Object?[core|Object?])")))(),
    ListOfAsyncErrorN: () => (T$1.ListOfAsyncErrorN = dart.constFn(dart_rti.findType("core|List<async|AsyncError?>")))(),
    _FutureResult: () => (T$1._FutureResult = dart.constFn(dart_rti.findType("async|_FutureResult<@>")))(),
    RecOfAsyncErrorNAndAsyncErrorN: () => (T$1.RecOfAsyncErrorNAndAsyncErrorN = dart.constFn(dart_rti.findType("+(async|AsyncError?,async|AsyncError?)")))(),
    RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN: () => (T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN = dart.constFn(dart_rti.findType("+(async|AsyncError?,async|AsyncError?,async|AsyncError?)")))(),
    RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__: () => (T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__ = dart.constFn(dart_rti.findType("+(async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?)")))(),
    RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$1: () => (T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$1 = dart.constFn(dart_rti.findType("+(async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?)")))(),
    RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$2: () => (T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$2 = dart.constFn(dart_rti.findType("+(async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?)")))(),
    RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$3: () => (T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$3 = dart.constFn(dart_rti.findType("+(async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?)")))(),
    RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$4: () => (T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$4 = dart.constFn(dart_rti.findType("+(async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?)")))(),
    RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$5: () => (T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$5 = dart.constFn(dart_rti.findType("+(async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?,async|AsyncError?)")))(),
    _ZoneSpecification: () => (T$1._ZoneSpecification = dart.constFn(dart_rti.findType("async|_ZoneSpecification")))(),
    SetToString: () => (T$1.SetToString = dart.constFn(dart_rti.findType("core|String(core|Set<@>)")))(),
    __ToHashMapOfK$V: () => (T$1.__ToHashMapOfK$V = dart.constFn(dart_rti.findType("collection|HashMap<0^,1^>({equals:core|bool(0^,0^)?,hashCode:core|int(0^)?,isValidKey:core|bool(@)?})<core|Object?,core|Object?>")))(),
    VoidToHashMapOfK$V: () => (T$1.VoidToHashMapOfK$V = dart.constFn(dart_rti.findType("collection|HashMap<0^,1^>()<core|Object?,core|Object?>")))(),
    MapToHashMapOfK$V: () => (T$1.MapToHashMapOfK$V = dart.constFn(dart_rti.findType("collection|HashMap<0^,1^>(core|Map<@,@>)<core|Object?,core|Object?>")))(),
    MapOfK$VToHashMapOfK$V: () => (T$1.MapOfK$VToHashMapOfK$V = dart.constFn(dart_rti.findType("collection|HashMap<0^,1^>(core|Map<0^,1^>)<core|Object?,core|Object?>")))(),
    Iterable__ToHashMapOfK$V: () => (T$1.Iterable__ToHashMapOfK$V = dart.constFn(dart_rti.findType("collection|HashMap<0^,1^>(core|Iterable<@>{key:0^(@)?,value:1^(@)?})<core|Object?,core|Object?>")))(),
    IterableOfKAndIterableOfVToHashMapOfK$V: () => (T$1.IterableOfKAndIterableOfVToHashMapOfK$V = dart.constFn(dart_rti.findType("collection|HashMap<0^,1^>(core|Iterable<0^>,core|Iterable<1^>)<core|Object?,core|Object?>")))(),
    IterableOfMapEntryOfK$VToHashMapOfK$V: () => (T$1.IterableOfMapEntryOfK$VToHashMapOfK$V = dart.constFn(dart_rti.findType("collection|HashMap<0^,1^>(core|Iterable<core|MapEntry<0^,1^>>)<core|Object?,core|Object?>")))(),
    __ToHashSetOfE: () => (T$1.__ToHashSetOfE = dart.constFn(dart_rti.findType("collection|HashSet<0^>({equals:core|bool(0^,0^)?,hashCode:core|int(0^)?,isValidKey:core|bool(@)?})<core|Object?>")))(),
    VoidToHashSetOfE: () => (T$1.VoidToHashSetOfE = dart.constFn(dart_rti.findType("collection|HashSet<0^>()<core|Object?>")))(),
    IterableToHashSetOfE: () => (T$1.IterableToHashSetOfE = dart.constFn(dart_rti.findType("collection|HashSet<0^>(core|Iterable<@>)<core|Object?>")))(),
    IterableOfEToHashSetOfE: () => (T$1.IterableOfEToHashSetOfE = dart.constFn(dart_rti.findType("collection|HashSet<0^>(core|Iterable<0^>)<core|Object?>")))(),
    __ToLinkedHashMapOfK$V: () => (T$1.__ToLinkedHashMapOfK$V = dart.constFn(dart_rti.findType("collection|LinkedHashMap<0^,1^>({equals:core|bool(0^,0^)?,hashCode:core|int(0^)?,isValidKey:core|bool(@)?})<core|Object?,core|Object?>")))(),
    VoidToLinkedHashMapOfK$V: () => (T$1.VoidToLinkedHashMapOfK$V = dart.constFn(dart_rti.findType("collection|LinkedHashMap<0^,1^>()<core|Object?,core|Object?>")))(),
    MapToLinkedHashMapOfK$V: () => (T$1.MapToLinkedHashMapOfK$V = dart.constFn(dart_rti.findType("collection|LinkedHashMap<0^,1^>(core|Map<@,@>)<core|Object?,core|Object?>")))(),
    MapOfK$VToLinkedHashMapOfK$V: () => (T$1.MapOfK$VToLinkedHashMapOfK$V = dart.constFn(dart_rti.findType("collection|LinkedHashMap<0^,1^>(core|Map<0^,1^>)<core|Object?,core|Object?>")))(),
    Iterable__ToLinkedHashMapOfK$V: () => (T$1.Iterable__ToLinkedHashMapOfK$V = dart.constFn(dart_rti.findType("collection|LinkedHashMap<0^,1^>(core|Iterable<@>{key:0^(@)?,value:1^(@)?})<core|Object?,core|Object?>")))(),
    IterableOfKAndIterableOfVToLinkedHashMapOfK$V: () => (T$1.IterableOfKAndIterableOfVToLinkedHashMapOfK$V = dart.constFn(dart_rti.findType("collection|LinkedHashMap<0^,1^>(core|Iterable<0^>,core|Iterable<1^>)<core|Object?,core|Object?>")))(),
    IterableOfMapEntryOfK$VToLinkedHashMapOfK$V: () => (T$1.IterableOfMapEntryOfK$VToLinkedHashMapOfK$V = dart.constFn(dart_rti.findType("collection|LinkedHashMap<0^,1^>(core|Iterable<core|MapEntry<0^,1^>>)<core|Object?,core|Object?>")))(),
    __ToLinkedHashSetOfE: () => (T$1.__ToLinkedHashSetOfE = dart.constFn(dart_rti.findType("collection|LinkedHashSet<0^>({equals:core|bool(0^,0^)?,hashCode:core|int(0^)?,isValidKey:core|bool(@)?})<core|Object?>")))(),
    VoidToLinkedHashSetOfE: () => (T$1.VoidToLinkedHashSetOfE = dart.constFn(dart_rti.findType("collection|LinkedHashSet<0^>()<core|Object?>")))(),
    IterableToLinkedHashSetOfE: () => (T$1.IterableToLinkedHashSetOfE = dart.constFn(dart_rti.findType("collection|LinkedHashSet<0^>(core|Iterable<@>)<core|Object?>")))(),
    IterableOfEToLinkedHashSetOfE: () => (T$1.IterableOfEToLinkedHashSetOfE = dart.constFn(dart_rti.findType("collection|LinkedHashSet<0^>(core|Iterable<0^>)<core|Object?>")))(),
    LinkedListEntryOfLinkedListEntry: () => (T$1.LinkedListEntryOfLinkedListEntry = dart.constFn(dart_rti.findType("collection|LinkedListEntry<collection|LinkedListEntry<@>>")))(),
    ObjectNAndObjectN__Tovoid: () => (T$1.ObjectNAndObjectN__Tovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|Object?{updateFirst:core|bool})")))(),
    IterableToQueueOfE: () => (T$1.IterableToQueueOfE = dart.constFn(dart_rti.findType("collection|Queue<0^>(core|Iterable<@>)<core|Object?>")))(),
    IterableOfEToQueueOfE: () => (T$1.IterableOfEToQueueOfE = dart.constFn(dart_rti.findType("collection|Queue<0^>(core|Iterable<0^>)<core|Object?>")))(),
    QueueOfSToQueueOfT: () => (T$1.QueueOfSToQueueOfT = dart.constFn(dart_rti.findType("collection|Queue<1^>(collection|Queue<0^>)<core|Object?,core|Object?>")))()
  };
  var T$2 = {
    IterableToDoubleLinkedQueueOfE: () => (T$2.IterableToDoubleLinkedQueueOfE = dart.constFn(dart_rti.findType("collection|DoubleLinkedQueue<0^>(core|Iterable<@>)<core|Object?>")))(),
    IterableOfEToDoubleLinkedQueueOfE: () => (T$2.IterableOfEToDoubleLinkedQueueOfE = dart.constFn(dart_rti.findType("collection|DoubleLinkedQueue<0^>(core|Iterable<0^>)<core|Object?>")))(),
    intNToint: () => (T$2.intNToint = dart.constFn(dart_rti.findType("core|int(core|int?)")))(),
    IterableToListQueueOfE: () => (T$2.IterableToListQueueOfE = dart.constFn(dart_rti.findType("collection|ListQueue<0^>(core|Iterable<@>)<core|Object?>")))(),
    IterableOfEToListQueueOfE: () => (T$2.IterableOfEToListQueueOfE = dart.constFn(dart_rti.findType("collection|ListQueue<0^>(core|Iterable<0^>)<core|Object?>")))(),
    VoidToNever: () => (T$2.VoidToNever = dart.constFn(dart_rti.findType("0&()")))(),
    MapAndFnAndFnToSplayTreeMapOfK$V: () => (T$2.MapAndFnAndFnToSplayTreeMapOfK$V = dart.constFn(dart_rti.findType("collection|SplayTreeMap<0^,1^>(core|Map<@,@>[core|int(0^,0^)?,core|bool(@)?])<core|Object?,core|Object?>")))(),
    MapOfK$VAndFnAndFnToSplayTreeMapOfK$V: () => (T$2.MapOfK$VAndFnAndFnToSplayTreeMapOfK$V = dart.constFn(dart_rti.findType("collection|SplayTreeMap<0^,1^>(core|Map<0^,1^>[core|int(0^,0^)?,core|bool(@)?])<core|Object?,core|Object?>")))(),
    Iterable__ToSplayTreeMapOfK$V: () => (T$2.Iterable__ToSplayTreeMapOfK$V = dart.constFn(dart_rti.findType("collection|SplayTreeMap<0^,1^>(core|Iterable<@>{compare:core|int(0^,0^)?,isValidKey:core|bool(@)?,key:0^(@)?,value:1^(@)?})<core|Object?,core|Object?>")))(),
    IterableOfKAndIterableOfVAndFn__ToSplayTreeMapOfK$V: () => (T$2.IterableOfKAndIterableOfVAndFn__ToSplayTreeMapOfK$V = dart.constFn(dart_rti.findType("collection|SplayTreeMap<0^,1^>(core|Iterable<0^>,core|Iterable<1^>[core|int(0^,0^)?,core|bool(@)?])<core|Object?,core|Object?>")))(),
    IterableAndFnAndFnToSplayTreeSetOfE: () => (T$2.IterableAndFnAndFnToSplayTreeSetOfE = dart.constFn(dart_rti.findType("collection|SplayTreeSet<0^>(core|Iterable<@>[core|int(0^,0^)?,core|bool(@)?])<core|Object?>")))(),
    IterableOfEAndFnAndFnToSplayTreeSetOfE: () => (T$2.IterableOfEAndFnAndFnToSplayTreeSetOfE = dart.constFn(dart_rti.findType("collection|SplayTreeSet<0^>(core|Iterable<0^>[core|int(0^,0^)?,core|bool(@)?])<core|Object?>")))(),
    ComparableAndComparableToint: () => (T$2.ComparableAndComparableToint = dart.constFn(dart_rti.findType("core|int(core|Comparable<@>,core|Comparable<@>)")))(),
    _JsonMap: () => (T$2._JsonMap = dart.constFn(dart_rti.findType("convert|_JsonMap")))(),
    MapOfString$dynamic: () => (T$2.MapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>")))(),
    StringAnddynamicTovoid: () => (T$2.StringAnddynamicTovoid = dart.constFn(dart_rti.findType("~(core|String,@)")))(),
    VoidToListOfString: () => (T$2.VoidToListOfString = dart.constFn(dart_rti.findType("core|List<core|String>()")))(),
    VoidToMapOfString$dynamic: () => (T$2.VoidToMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>()")))(),
    dynamicAndStringTobool: () => (T$2.dynamicAndStringTobool = dart.constFn(dart_rti.findType("core|bool(@,core|String)")))(),
    dynamicAndStringTodynamic: () => (T$2.dynamicAndStringTodynamic = dart.constFn(dart_rti.findType("@(@,core|String)")))(),
    dynamicAndStringAnddynamicTodynamic: () => (T$2.dynamicAndStringAnddynamicTodynamic = dart.constFn(dart_rti.findType("@(@,core|String,@)")))(),
    dynamicToList: () => (T$2.dynamicToList = dart.constFn(dart_rti.findType("core|List<@>(@)")))(),
    _JsonMapKeyIterable: () => (T$2._JsonMapKeyIterable = dart.constFn(dart_rti.findType("convert|_JsonMapKeyIterable")))(),
    _JsonDecoderSink: () => (T$2._JsonDecoderSink = dart.constFn(dart_rti.findType("convert|_JsonDecoderSink")))(),
    StringSink: () => (T$2.StringSink = dart.constFn(dart_rti.findType("core|StringSink")))(),
    FnToStringConversionSink: () => (T$2.FnToStringConversionSink = dart.constFn(dart_rti.findType("convert|StringConversionSink(~(core|String))")))(),
    SinkOfStringToStringConversionSink: () => (T$2.SinkOfStringToStringConversionSink = dart.constFn(dart_rti.findType("convert|StringConversionSink(core|Sink<core|String>)")))(),
    StringSinkToStringConversionSink: () => (T$2.StringSinkToStringConversionSink = dart.constFn(dart_rti.findType("convert|StringConversionSink(core|StringSink)")))(),
    boolToByteConversionSink: () => (T$2.boolToByteConversionSink = dart.constFn(dart_rti.findType("convert|ByteConversionSink(core|bool)")))(),
    VoidToClosableStringSink: () => (T$2.VoidToClosableStringSink = dart.constFn(dart_rti.findType("convert|ClosableStringSink()")))(),
    StringAndintAndint__Tovoid: () => (T$2.StringAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|String,core|int,core|int,core|bool)")))(),
    ObjectNAndObjectNToNObjectN: () => (T$2.ObjectNAndObjectNToNObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Object?,core|Object?)?")))(),
    SinkOfObjectN: () => (T$2.SinkOfObjectN = dart.constFn(dart_rti.findType("core|Sink<core|Object?>")))(),
    AsciiCodec: () => (T$2.AsciiCodec = dart.constFn(dart_rti.findType("convert|AsciiCodec")))(),
    Encoding: () => (T$2.Encoding = dart.constFn(dart_rti.findType("convert|Encoding")))(),
    StringBuffer: () => (T$2.StringBuffer = dart.constFn(dart_rti.findType("core|StringBuffer")))(),
    StringBufferAndStringToStringBuffer: () => (T$2.StringBufferAndStringToStringBuffer = dart.constFn(dart_rti.findType("core|StringBuffer(core|StringBuffer,core|String)")))(),
    StringBufferToString: () => (T$2.StringBufferToString = dart.constFn(dart_rti.findType("core|String(core|StringBuffer)")))(),
    StreamOfListOfintToFutureOfString: () => (T$2.StreamOfListOfintToFutureOfString = dart.constFn(dart_rti.findType("async|Future<core|String>(async|Stream<core|List<core|int>>)")))(),
    StringNToEncodingN: () => (T$2.StringNToEncodingN = dart.constFn(dart_rti.findType("convert|Encoding?(core|String?)")))(),
    MapOfString$Encoding: () => (T$2.MapOfString$Encoding = dart.constFn(dart_rti.findType("core|Map<core|String,convert|Encoding>")))(),
    ObjectNToUint8List: () => (T$2.ObjectNToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|Object?)")))(),
    ObjectN__ToString: () => (T$2.ObjectN__ToString = dart.constFn(dart_rti.findType("core|String(core|Object?{allowInvalid:core|bool?})")))(),
    AsciiEncoder: () => (T$2.AsciiEncoder = dart.constFn(dart_rti.findType("convert|AsciiEncoder")))(),
    AsciiDecoder: () => (T$2.AsciiDecoder = dart.constFn(dart_rti.findType("convert|AsciiDecoder")))(),
    _UnicodeSubsetEncoder: () => (T$2._UnicodeSubsetEncoder = dart.constFn(dart_rti.findType("convert|_UnicodeSubsetEncoder")))(),
    SinkOfListOfint: () => (T$2.SinkOfListOfint = dart.constFn(dart_rti.findType("core|Sink<core|List<core|int>>")))(),
    ByteConversionSink: () => (T$2.ByteConversionSink = dart.constFn(dart_rti.findType("convert|ByteConversionSink")))(),
    StreamOfString: () => (T$2.StreamOfString = dart.constFn(dart_rti.findType("async|Stream<core|String>")))(),
    ObjectNAndintAndintNToUint8List: () => (T$2.ObjectNAndintAndintNToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|Object?[core|int,core|int?])")))(),
    ObjectNToStringConversionSink: () => (T$2.ObjectNToStringConversionSink = dart.constFn(dart_rti.findType("convert|StringConversionSink(core|Object?)")))(),
    _UnicodeSubsetDecoder: () => (T$2._UnicodeSubsetDecoder = dart.constFn(dart_rti.findType("convert|_UnicodeSubsetDecoder")))(),
    StreamOfListOfint: () => (T$2.StreamOfListOfint = dart.constFn(dart_rti.findType("async|Stream<core|List<core|int>>")))(),
    ObjectNAndintAndintNToString: () => (T$2.ObjectNAndintAndintNToString = dart.constFn(dart_rti.findType("core|String(core|Object?[core|int,core|int?])")))(),
    ListOfintAndintAndintToString: () => (T$2.ListOfintAndintAndintToString = dart.constFn(dart_rti.findType("core|String(core|List<core|int>,core|int,core|int)")))(),
    SinkOfString: () => (T$2.SinkOfString = dart.constFn(dart_rti.findType("core|Sink<core|String>")))(),
    StringConversionSink: () => (T$2.StringConversionSink = dart.constFn(dart_rti.findType("convert|StringConversionSink")))(),
    ObjectNToByteConversionSink: () => (T$2.ObjectNToByteConversionSink = dart.constFn(dart_rti.findType("convert|ByteConversionSink(core|Object?)")))(),
    intL: () => (T$2.intL = dart.constFn(dart_rti.findType("core|int*")))(),
    FnToByteConversionSink: () => (T$2.FnToByteConversionSink = dart.constFn(dart_rti.findType("convert|ByteConversionSink(~(core|List<core|int>))")))(),
    SinkOfListOfintToByteConversionSink: () => (T$2.SinkOfListOfintToByteConversionSink = dart.constFn(dart_rti.findType("convert|ByteConversionSink(core|Sink<core|List<core|int>>)")))(),
    ListOfintAndintAndint__Tovoid: () => (T$2.ListOfintAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>,core|int,core|int,core|bool)")))(),
    Sink: () => (T$2.Sink = dart.constFn(dart_rti.findType("core|Sink<@>")))(),
    Base64Codec: () => (T$2.Base64Codec = dart.constFn(dart_rti.findType("convert|Base64Codec")))(),
    Base64Encoder: () => (T$2.Base64Encoder = dart.constFn(dart_rti.findType("convert|Base64Encoder")))(),
    Base64Decoder: () => (T$2.Base64Decoder = dart.constFn(dart_rti.findType("convert|Base64Decoder")))(),
    StringAndintAndintNToString: () => (T$2.StringAndintAndintNToString = dart.constFn(dart_rti.findType("core|String(core|String[core|int,core|int?])")))(),
    StringAndintAndint__Tovoid$1: () => (T$2.StringAndintAndint__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|String,core|int,core|int,core|int,core|int,core|int)")))(),
    ListOfintAndintAndint__ToUint8ListN: () => (T$2.ListOfintAndintAndint__ToUint8ListN = dart.constFn(dart_rti.findType("typed_data|Uint8List?(core|List<core|int>,core|int,core|int,core|bool)")))(),
    StringAndListOfintAndint__Toint: () => (T$2.StringAndListOfintAndint__Toint = dart.constFn(dart_rti.findType("core|int(core|String,core|List<core|int>,core|int,core|int,core|bool,typed_data|Uint8List,core|int,core|int)")))(),
    StringAndUint8ListAndint__Tovoid: () => (T$2.StringAndUint8ListAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|String,typed_data|Uint8List,core|int,core|int,core|int)")))(),
    Uint8ListN: () => (T$2.Uint8ListN = dart.constFn(dart_rti.findType("typed_data|Uint8List?")))(),
    _Base64Encoder: () => (T$2._Base64Encoder = dart.constFn(dart_rti.findType("convert|_Base64Encoder")))(),
    StringAndintAndintToUint8ListN: () => (T$2.StringAndintAndintToUint8ListN = dart.constFn(dart_rti.findType("typed_data|Uint8List?(core|String,core|int,core|int)")))(),
    StringNAndintNTovoid: () => (T$2.StringNAndintNTovoid = dart.constFn(dart_rti.findType("~(core|String?,core|int?)")))(),
    StringAndintAndint__Toint: () => (T$2.StringAndintAndint__Toint = dart.constFn(dart_rti.findType("core|int(core|String,core|int,core|int,typed_data|Uint8List,core|int,core|int)")))(),
    StringAndintAndint__ToUint8List: () => (T$2.StringAndintAndint__ToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|String,core|int,core|int,core|int)")))(),
    StringAndintAndintToint: () => (T$2.StringAndintAndintToint = dart.constFn(dart_rti.findType("core|int(core|String,core|int,core|int)")))(),
    StringAndintAndint__Toint$1: () => (T$2.StringAndintAndint__Toint$1 = dart.constFn(dart_rti.findType("core|int(core|String,core|int,core|int,core|int)")))(),
    _Base64Decoder: () => (T$2._Base64Decoder = dart.constFn(dart_rti.findType("convert|_Base64Decoder")))(),
    FnToChunkedConversionSinkOfT: () => (T$2.FnToChunkedConversionSinkOfT = dart.constFn(dart_rti.findType("convert|ChunkedConversionSink<0^>(~(core|List<0^>))<core|Object?>")))(),
    HtmlEscapeMode: () => (T$2.HtmlEscapeMode = dart.constFn(dart_rti.findType("convert|HtmlEscapeMode")))(),
    HtmlEscape: () => (T$2.HtmlEscape = dart.constFn(dart_rti.findType("convert|HtmlEscape")))(),
    StringAndintAndintToStringN: () => (T$2.StringAndintAndintToStringN = dart.constFn(dart_rti.findType("core|String?(core|String,core|int,core|int)")))(),
    JsonCodec: () => (T$2.JsonCodec = dart.constFn(dart_rti.findType("convert|JsonCodec")))(),
    ObjectN__Todynamic: () => (T$2.ObjectN__Todynamic = dart.constFn(dart_rti.findType("@(core|Object?{reviver:core|Object?(core|Object?,core|Object?)?})")))(),
    ObjectN__ToString$1: () => (T$2.ObjectN__ToString$1 = dart.constFn(dart_rti.findType("core|String(core|Object?{toEncodable:core|Object?(@)?})")))(),
    JsonEncoder: () => (T$2.JsonEncoder = dart.constFn(dart_rti.findType("convert|JsonEncoder")))(),
    JsonDecoder: () => (T$2.JsonDecoder = dart.constFn(dart_rti.findType("convert|JsonDecoder")))(),
    dynamicToNObjectN: () => (T$2.dynamicToNObjectN = dart.constFn(dart_rti.findType("core|Object?(@)?")))(),
    _Utf8EncoderSink: () => (T$2._Utf8EncoderSink = dart.constFn(dart_rti.findType("convert|_Utf8EncoderSink")))(),
    StreamOfObjectN: () => (T$2.StreamOfObjectN = dart.constFn(dart_rti.findType("async|Stream<core|Object?>")))(),
    Utf8Encoder: () => (T$2.Utf8Encoder = dart.constFn(dart_rti.findType("convert|Utf8Encoder")))(),
    ObjectNToChunkedConversionSinkOfObjectN: () => (T$2.ObjectNToChunkedConversionSinkOfObjectN = dart.constFn(dart_rti.findType("convert|ChunkedConversionSink<core|Object?>(core|Object?)")))(),
    JsonUtf8Encoder: () => (T$2.JsonUtf8Encoder = dart.constFn(dart_rti.findType("convert|JsonUtf8Encoder")))(),
    Uint8ListAndintAndintTovoid: () => (T$2.Uint8ListAndintAndintTovoid = dart.constFn(dart_rti.findType("~(typed_data|Uint8List,core|int,core|int)")))(),
    StringNToListNOfint: () => (T$2.StringNToListNOfint = dart.constFn(dart_rti.findType("core|List<core|int>?(core|String?)")))(),
    ObjectNToListOfint: () => (T$2.ObjectNToListOfint = dart.constFn(dart_rti.findType("core|List<core|int>(core|Object?)")))(),
    ListNOfint: () => (T$2.ListNOfint = dart.constFn(dart_rti.findType("core|List<core|int>?")))(),
    _JsonEncoderSink: () => (T$2._JsonEncoderSink = dart.constFn(dart_rti.findType("convert|_JsonEncoderSink")))(),
    _JsonUtf8EncoderSink: () => (T$2._JsonUtf8EncoderSink = dart.constFn(dart_rti.findType("convert|_JsonUtf8EncoderSink")))(),
    SinkOfObjectNToStringConversionSink: () => (T$2.SinkOfObjectNToStringConversionSink = dart.constFn(dart_rti.findType("convert|StringConversionSink(core|Sink<core|Object?>)")))(),
    ListOfObjectNTovoid: () => (T$2.ListOfObjectNTovoid = dart.constFn(dart_rti.findType("~(core|List<core|Object?>)")))(),
    MapOfObjectN$ObjectNTobool: () => (T$2.MapOfObjectN$ObjectNTobool = dart.constFn(dart_rti.findType("core|bool(core|Map<core|Object?,core|Object?>)")))(),
    ObjectNAndFnAndStringNToString: () => (T$2.ObjectNAndFnAndStringNToString = dart.constFn(dart_rti.findType("core|String(core|Object?,@(@)?,core|String?)")))(),
    ObjectNAndStringSinkAndFn__Tovoid: () => (T$2.ObjectNAndStringSinkAndFn__Tovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|StringSink,@(@)?,core|String?)")))(),
    numTovoid: () => (T$2.numTovoid = dart.constFn(dart_rti.findType("~(core|num)")))(),
    StringAndintAndintTovoid: () => (T$2.StringAndintAndintTovoid = dart.constFn(dart_rti.findType("~(core|String,core|int,core|int)")))(),
    ObjectNAndListNOfintAndFn__Tovoid: () => (T$2.ObjectNAndListNOfintAndFn__Tovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|List<core|int>?,@(@)?,core|int,~(typed_data|Uint8List,core|int,core|int))")))(),
    Latin1Codec: () => (T$2.Latin1Codec = dart.constFn(dart_rti.findType("convert|Latin1Codec")))(),
    Latin1Encoder: () => (T$2.Latin1Encoder = dart.constFn(dart_rti.findType("convert|Latin1Encoder")))(),
    Latin1Decoder: () => (T$2.Latin1Decoder = dart.constFn(dart_rti.findType("convert|Latin1Decoder")))(),
    ListOfintAndintAndintTovoid: () => (T$2.ListOfintAndintAndintTovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>,core|int,core|int)")))(),
    StringConversionSinkN: () => (T$2.StringConversionSinkN = dart.constFn(dart_rti.findType("convert|StringConversionSink?")))(),
    LineSplitter: () => (T$2.LineSplitter = dart.constFn(dart_rti.findType("convert|LineSplitter")))(),
    EventSinkOfStringTo_LineSplitterEventSink: () => (T$2.EventSinkOfStringTo_LineSplitterEventSink = dart.constFn(dart_rti.findType("convert|_LineSplitterEventSink(async|EventSink<core|String>)")))(),
    StringAndintAndintNToIterableOfString: () => (T$2.StringAndintAndintNToIterableOfString = dart.constFn(dart_rti.findType("core|Iterable<core|String>(core|String[core|int,core|int?])")))(),
    StringToListOfString: () => (T$2.StringToListOfString = dart.constFn(dart_rti.findType("core|List<core|String>(core|String)")))(),
    ObjectNToStreamOfString: () => (T$2.ObjectNToStreamOfString = dart.constFn(dart_rti.findType("async|Stream<core|String>(core|Object?)")))(),
    StringAndStringTovoid: () => (T$2.StringAndStringTovoid = dart.constFn(dart_rti.findType("~(core|String,core|String)")))(),
    StringBufferN: () => (T$2.StringBufferN = dart.constFn(dart_rti.findType("core|StringBuffer?")))(),
    EventSinkOfString: () => (T$2.EventSinkOfString = dart.constFn(dart_rti.findType("async|EventSink<core|String>")))(),
    _LineSplitIterable: () => (T$2._LineSplitIterable = dart.constFn(dart_rti.findType("convert|_LineSplitIterable")))(),
    IteratorOfString: () => (T$2.IteratorOfString = dart.constFn(dart_rti.findType("core|Iterator<core|String>")))(),
    StringSinkAndFnToClosableStringSink: () => (T$2.StringSinkAndFnToClosableStringSink = dart.constFn(dart_rti.findType("convert|ClosableStringSink(core|StringSink,~())")))(),
    IterableAndStringTovoid: () => (T$2.IterableAndStringTovoid = dart.constFn(dart_rti.findType("~(core|Iterable<@>[core|String])")))(),
    _StringCallbackSink: () => (T$2._StringCallbackSink = dart.constFn(dart_rti.findType("convert|_StringCallbackSink")))(),
    _Utf8Decoder: () => (T$2._Utf8Decoder = dart.constFn(dart_rti.findType("convert|_Utf8Decoder")))(),
    Utf8Codec: () => (T$2.Utf8Codec = dart.constFn(dart_rti.findType("convert|Utf8Codec")))(),
    ObjectN__ToString$2: () => (T$2.ObjectN__ToString$2 = dart.constFn(dart_rti.findType("core|String(core|Object?{allowMalformed:core|bool?})")))(),
    Utf8Decoder: () => (T$2.Utf8Decoder = dart.constFn(dart_rti.findType("convert|Utf8Decoder")))(),
    ConverterOfString$TToConverterOfListOfint$T: () => (T$2.ConverterOfString$TToConverterOfListOfint$T = dart.constFn(dart_rti.findType("convert|Converter<core|List<core|int>,0^>(convert|Converter<core|String,0^>)<core|Object?>")))(),
    ListOfintAndintAndintN__ToString: () => (T$2.ListOfintAndintAndintN__ToString = dart.constFn(dart_rti.findType("core|String(core|List<core|int>,core|int,core|int?,core|bool)")))(),
    Uint8ListAndintAndint__ToString: () => (T$2.Uint8ListAndintAndint__ToString = dart.constFn(dart_rti.findType("core|String(typed_data|Uint8List,core|int,core|int,core|bool)")))(),
    ListOfintAndintAndintToUint8List: () => (T$2.ListOfintAndintAndintToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|List<core|int>,core|int,core|int)")))(),
    boolAndNativeUint8ListAndint__ToStringN: () => (T$2.boolAndNativeUint8ListAndint__ToStringN = dart.constFn(dart_rti.findType("core|String?(core|bool,_native_typed_data|NativeUint8List,core|int,core|int)")))(),
    dynamicAndNativeUint8ListToStringN: () => (T$2.dynamicAndNativeUint8ListToStringN = dart.constFn(dart_rti.findType("core|String?(@,_native_typed_data|NativeUint8List)")))(),
    ListOfintAndintAndintNToString: () => (T$2.ListOfintAndintAndintNToString = dart.constFn(dart_rti.findType("core|String(core|List<core|int>,core|int,core|int?)")))(),
    StringSinkTovoid: () => (T$2.StringSinkTovoid = dart.constFn(dart_rti.findType("~(core|StringSink)")))(),
    VoidToObjectN: () => (T$2.VoidToObjectN = dart.constFn(dart_rti.findType("core|Object?()")))(),
    StringTo_FakeUserTag: () => (T$2.StringTo_FakeUserTag = dart.constFn(dart_rti.findType("developer|_FakeUserTag(core|String)")))(),
    VoidToUserTag: () => (T$2.VoidToUserTag = dart.constFn(dart_rti.findType("developer|UserTag()")))(),
    MapOfString$_FakeUserTag: () => (T$2.MapOfString$_FakeUserTag = dart.constFn(dart_rti.findType("core|Map<core|String,developer|_FakeUserTag>")))(),
    UserTag: () => (T$2.UserTag = dart.constFn(dart_rti.findType("developer|UserTag")))(),
    _FakeUserTag: () => (T$2._FakeUserTag = dart.constFn(dart_rti.findType("developer|_FakeUserTag")))(),
    intTodynamic: () => (T$2.intTodynamic = dart.constFn(dart_rti.findType("@(core|int)")))(),
    StringToUserTag: () => (T$2.StringToUserTag = dart.constFn(dart_rti.findType("developer|UserTag(core|String)")))(),
    UriN: () => (T$2.UriN = dart.constFn(dart_rti.findType("core|Uri?")))(),
    StringNTovoid: () => (T$2.StringNTovoid = dart.constFn(dart_rti.findType("~(core|String?)")))(),
    ServiceProtocolInfo: () => (T$2.ServiceProtocolInfo = dart.constFn(dart_rti.findType("developer|ServiceProtocolInfo")))(),
    Isolate: () => (T$2.Isolate = dart.constFn(dart_rti.findType("isolate|Isolate")))(),
    VoidToFutureOfServiceProtocolInfo: () => (T$2.VoidToFutureOfServiceProtocolInfo = dart.constFn(dart_rti.findType("async|Future<developer|ServiceProtocolInfo>()")))(),
    __ToFutureOfServiceProtocolInfo: () => (T$2.__ToFutureOfServiceProtocolInfo = dart.constFn(dart_rti.findType("async|Future<developer|ServiceProtocolInfo>({enable:core|bool,silenceOutput:core|bool?})")))(),
    IsolateToStringN: () => (T$2.IsolateToStringN = dart.constFn(dart_rti.findType("core|String?(isolate|Isolate)")))(),
    ObjectToStringN: () => (T$2.ObjectToStringN = dart.constFn(dart_rti.findType("core|String?(core|Object)")))(),
    __ToFlow: () => (T$2.__ToFlow = dart.constFn(dart_rti.findType("developer|Flow({id:core|int?})")))(),
    intToFlow: () => (T$2.intToFlow = dart.constFn(dart_rti.findType("developer|Flow(core|int)")))(),
    String__Tovoid: () => (T$2.String__Tovoid = dart.constFn(dart_rti.findType("~(core|String{arguments:core|Map<@,@>?,flow:developer|Flow?})")))(),
    String__Tovoid$1: () => (T$2.String__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|String{arguments:core|Map<@,@>?})")))(),
    StringAndFn__ToT: () => (T$2.StringAndFn__ToT = dart.constFn(dart_rti.findType("0^(core|String,0^(){arguments:core|Map<@,@>?,flow:developer|Flow?})<core|Object?>")))(),
    ListOf_SyncBlockN: () => (T$2.ListOf_SyncBlockN = dart.constFn(dart_rti.findType("core|List<developer|_SyncBlock?>")))(),
    _SyncBlockN: () => (T$2._SyncBlockN = dart.constFn(dart_rti.findType("developer|_SyncBlock?")))(),
    _AsyncBlockN: () => (T$2._AsyncBlockN = dart.constFn(dart_rti.findType("developer|_AsyncBlock?")))(),
    __Tovoid: () => (T$2.__Tovoid = dart.constFn(dart_rti.findType("~({arguments:core|Map<@,@>?})")))(),
    TimelineTaskN: () => (T$2.TimelineTaskN = dart.constFn(dart_rti.findType("developer|TimelineTask?")))(),
    ListOf_AsyncBlockN: () => (T$2.ListOf_AsyncBlockN = dart.constFn(dart_rti.findType("core|List<developer|_AsyncBlock?>")))(),
    MapTovoid: () => (T$2.MapTovoid = dart.constFn(dart_rti.findType("~(core|Map<@,@>)")))(),
    MapNTovoid: () => (T$2.MapNTovoid = dart.constFn(dart_rti.findType("~(core|Map<@,@>?)")))(),
    MapN: () => (T$2.MapN = dart.constFn(dart_rti.findType("core|Map<@,@>?")))(),
    FlowN: () => (T$2.FlowN = dart.constFn(dart_rti.findType("developer|Flow?")))(),
    StringAndMapOfString$StringToFutureOfServiceExtensionResponse: () => (T$2.StringAndMapOfString$StringToFutureOfServiceExtensionResponse = dart.constFn(dart_rti.findType("async|Future<developer|ServiceExtensionResponse>(core|String,core|Map<core|String,core|String>)")))(),
    FutureOfServiceExtensionResponse: () => (T$2.FutureOfServiceExtensionResponse = dart.constFn(dart_rti.findType("async|Future<developer|ServiceExtensionResponse>")))(),
    MapOfString$String: () => (T$2.MapOfString$String = dart.constFn(dart_rti.findType("core|Map<core|String,core|String>")))(),
    ZLibCodec: () => (T$2.ZLibCodec = dart.constFn(dart_rti.findType("io|ZLibCodec")))(),
    ZLibEncoder: () => (T$2.ZLibEncoder = dart.constFn(dart_rti.findType("io|ZLibEncoder")))(),
    ZLibDecoder: () => (T$2.ZLibDecoder = dart.constFn(dart_rti.findType("io|ZLibDecoder")))(),
    GZipCodec: () => (T$2.GZipCodec = dart.constFn(dart_rti.findType("io|GZipCodec")))(),
    __ToRawZLibFilter: () => (T$2.__ToRawZLibFilter = dart.constFn(dart_rti.findType("io|RawZLibFilter({dictionary:core|List<core|int>?,gzip:core|bool,level:core|int,memLevel:core|int,raw:core|bool,strategy:core|int,windowBits:core|int})")))(),
    __ToRawZLibFilter$1: () => (T$2.__ToRawZLibFilter$1 = dart.constFn(dart_rti.findType("io|RawZLibFilter({dictionary:core|List<core|int>?,gzip:core|bool,raw:core|bool,windowBits:core|int})")))(),
    boolAndintAndint__ToRawZLibFilter: () => (T$2.boolAndintAndint__ToRawZLibFilter = dart.constFn(dart_rti.findType("io|RawZLibFilter(core|bool,core|int,core|int,core|int,core|int,core|List<core|int>?,core|bool)")))(),
    boolAndintAndListNOfint__ToRawZLibFilter: () => (T$2.boolAndintAndListNOfint__ToRawZLibFilter = dart.constFn(dart_rti.findType("io|RawZLibFilter(core|bool,core|int,core|List<core|int>?,core|bool)")))(),
    BytesBuilder: () => (T$2.BytesBuilder = dart.constFn(dart_rti.findType("_internal|BytesBuilder")))(),
    RawZLibFilter: () => (T$2.RawZLibFilter = dart.constFn(dart_rti.findType("io|RawZLibFilter")))(),
    Directory: () => (T$2.Directory = dart.constFn(dart_rti.findType("io|Directory")))(),
    StringToDirectory: () => (T$2.StringToDirectory = dart.constFn(dart_rti.findType("io|Directory(core|String)")))(),
    Uint8ListToDirectory: () => (T$2.Uint8ListToDirectory = dart.constFn(dart_rti.findType("io|Directory(typed_data|Uint8List)")))(),
    UriToDirectory: () => (T$2.UriToDirectory = dart.constFn(dart_rti.findType("io|Directory(core|Uri)")))(),
    OSError: () => (T$2.OSError = dart.constFn(dart_rti.findType("io|OSError")))(),
    _Directory: () => (T$2._Directory = dart.constFn(dart_rti.findType("io|_Directory")))(),
    ArgumentError: () => (T$2.ArgumentError = dart.constFn(dart_rti.findType("core|ArgumentError")))(),
    DirectoryToFutureOfDirectory: () => (T$2.DirectoryToFutureOfDirectory = dart.constFn(dart_rti.findType("async|Future<io|Directory>(io|Directory)")))(),
    boolToFutureOrOfDirectory: () => (T$2.boolToFutureOrOfDirectory = dart.constFn(dart_rti.findType("io|Directory/(core|bool)")))(),
    ObjectNTo_Directory: () => (T$2.ObjectNTo_Directory = dart.constFn(dart_rti.findType("io|_Directory(core|Object?)")))(),
    ObjectNToDirectory: () => (T$2.ObjectNToDirectory = dart.constFn(dart_rti.findType("io|Directory(core|Object?)")))(),
    FileSystemEntity: () => (T$2.FileSystemEntity = dart.constFn(dart_rti.findType("io|FileSystemEntity")))(),
    FileSystemEntityTypeTobool: () => (T$2.FileSystemEntityTypeTobool = dart.constFn(dart_rti.findType("core|bool(io|FileSystemEntityType)")))(),
    FileSystemEntityType: () => (T$2.FileSystemEntityType = dart.constFn(dart_rti.findType("io|FileSystemEntityType")))(),
    ObjectNToFileSystemEntityType: () => (T$2.ObjectNToFileSystemEntityType = dart.constFn(dart_rti.findType("io|FileSystemEntityType(core|Object?)")))(),
    Uri: () => (T$2.Uri = dart.constFn(dart_rti.findType("core|Uri")))(),
    VoidToFutureOfString: () => (T$2.VoidToFutureOfString = dart.constFn(dart_rti.findType("async|Future<core|String>()")))(),
    VoidToFutureOfFileStat: () => (T$2.VoidToFutureOfFileStat = dart.constFn(dart_rti.findType("async|Future<io|FileStat>()")))(),
    VoidToFileStat: () => (T$2.VoidToFileStat = dart.constFn(dart_rti.findType("io|FileStat()")))(),
    __ToFutureOfFileSystemEntity: () => (T$2.__ToFutureOfFileSystemEntity = dart.constFn(dart_rti.findType("async|Future<io|FileSystemEntity>({recursive:core|bool})")))(),
    __Tovoid$1: () => (T$2.__Tovoid$1 = dart.constFn(dart_rti.findType("~({recursive:core|bool})")))(),
    __ToStreamOfFileSystemEvent: () => (T$2.__ToStreamOfFileSystemEvent = dart.constFn(dart_rti.findType("async|Stream<io|FileSystemEvent>({events:core|int,recursive:core|bool})")))(),
    StringAndStringToFutureOfbool: () => (T$2.StringAndStringToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(core|String,core|String)")))(),
    StringToint: () => (T$2.StringToint = dart.constFn(dart_rti.findType("core|int(core|String)")))(),
    StringToUint8List: () => (T$2.StringToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|String)")))(),
    Uint8ListToUint8List: () => (T$2.Uint8ListToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(typed_data|Uint8List)")))(),
    Uint8ListToString: () => (T$2.Uint8ListToString = dart.constFn(dart_rti.findType("core|String(typed_data|Uint8List)")))(),
    String__ToFutureOfFileSystemEntityType: () => (T$2.String__ToFutureOfFileSystemEntityType = dart.constFn(dart_rti.findType("async|Future<io|FileSystemEntityType>(core|String{followLinks:core|bool})")))(),
    String__ToFileSystemEntityType: () => (T$2.String__ToFileSystemEntityType = dart.constFn(dart_rti.findType("io|FileSystemEntityType(core|String{followLinks:core|bool})")))(),
    StringToFutureOfbool: () => (T$2.StringToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(core|String)")))(),
    Uint8ListToFutureOfbool: () => (T$2.Uint8ListToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(typed_data|Uint8List)")))(),
    _NamespaceAndUint8ListAndboolTodynamic: () => (T$2._NamespaceAndUint8ListAndboolTodynamic = dart.constFn(dart_rti.findType("@(io|_Namespace,typed_data|Uint8List,core|bool)")))(),
    _NamespaceAndStringAndStringTodynamic: () => (T$2._NamespaceAndStringAndStringTodynamic = dart.constFn(dart_rti.findType("@(io|_Namespace,core|String,core|String)")))(),
    _NamespaceAndUint8ListTodynamic: () => (T$2._NamespaceAndUint8ListTodynamic = dart.constFn(dart_rti.findType("@(io|_Namespace,typed_data|Uint8List)")))(),
    Uint8ListAndboolToFileSystemEntityType: () => (T$2.Uint8ListAndboolToFileSystemEntityType = dart.constFn(dart_rti.findType("io|FileSystemEntityType(typed_data|Uint8List,core|bool)")))(),
    Uint8ListAndboolToFutureOfFileSystemEntityType: () => (T$2.Uint8ListAndboolToFutureOfFileSystemEntityType = dart.constFn(dart_rti.findType("async|Future<io|FileSystemEntityType>(typed_data|Uint8List,core|bool)")))(),
    ObjectAndStringAndStringNTodynamic: () => (T$2.ObjectAndStringAndStringNTodynamic = dart.constFn(dart_rti.findType("@(core|Object,core|String[core|String?])")))(),
    _NamespaceTodynamic: () => (T$2._NamespaceTodynamic = dart.constFn(dart_rti.findType("@(io|_Namespace)")))(),
    _NamespaceToString: () => (T$2._NamespaceToString = dart.constFn(dart_rti.findType("core|String(io|_Namespace)")))(),
    _NamespaceAndUint8ListAndStringTodynamic: () => (T$2._NamespaceAndUint8ListAndStringTodynamic = dart.constFn(dart_rti.findType("@(io|_Namespace,typed_data|Uint8List,core|String)")))(),
    _NamespaceAndListOfFileSystemEntityAndUint8List__Tovoid: () => (T$2._NamespaceAndListOfFileSystemEntityAndUint8List__Tovoid = dart.constFn(dart_rti.findType("~(io|_Namespace,core|List<io|FileSystemEntity>,typed_data|Uint8List,core|bool,core|bool)")))(),
    __ToFutureOfDirectory: () => (T$2.__ToFutureOfDirectory = dart.constFn(dart_rti.findType("async|Future<io|Directory>({recursive:core|bool})")))(),
    StringNToFutureOfDirectory: () => (T$2.StringNToFutureOfDirectory = dart.constFn(dart_rti.findType("async|Future<io|Directory>([core|String?])")))(),
    StringNToDirectory: () => (T$2.StringNToDirectory = dart.constFn(dart_rti.findType("io|Directory([core|String?])")))(),
    StringToFutureOfDirectory: () => (T$2.StringToFutureOfDirectory = dart.constFn(dart_rti.findType("async|Future<io|Directory>(core|String)")))(),
    __ToStreamOfFileSystemEntity: () => (T$2.__ToStreamOfFileSystemEntity = dart.constFn(dart_rti.findType("async|Stream<io|FileSystemEntity>({followLinks:core|bool,recursive:core|bool})")))(),
    __ToListOfFileSystemEntity: () => (T$2.__ToListOfFileSystemEntity = dart.constFn(dart_rti.findType("core|List<io|FileSystemEntity>({followLinks:core|bool,recursive:core|bool})")))(),
    TAndStringToT: () => (T$2.TAndStringToT = dart.constFn(dart_rti.findType("0^(0^,core|String)<core|Object?>")))(),
    intTo_AsyncDirectoryListerOps: () => (T$2.intTo_AsyncDirectoryListerOps = dart.constFn(dart_rti.findType("io|_AsyncDirectoryListerOps(core|int)")))(),
    VoidTointN: () => (T$2.VoidTointN = dart.constFn(dart_rti.findType("core|int?()")))(),
    StreamOfFileSystemEntity: () => (T$2.StreamOfFileSystemEntity = dart.constFn(dart_rti.findType("async|Stream<io|FileSystemEntity>")))(),
    StreamControllerOfFileSystemEntity: () => (T$2.StreamControllerOfFileSystemEntity = dart.constFn(dart_rti.findType("async|StreamController<io|FileSystemEntity>")))(),
    _AsyncDirectoryListerOpsN: () => (T$2._AsyncDirectoryListerOpsN = dart.constFn(dart_rti.findType("io|_AsyncDirectoryListerOps?")))(),
    Completer: () => (T$2.Completer = dart.constFn(dart_rti.findType("async|Completer<@>")))(),
    ObjectNAndSendPortAndintTovoid: () => (T$2.ObjectNAndSendPortAndintTovoid = dart.constFn(dart_rti.findType("~(core|Object?,isolate|SendPort,core|int)")))(),
    FileMode: () => (T$2.FileMode = dart.constFn(dart_rti.findType("io|FileMode")))(),
    FileLock: () => (T$2.FileLock = dart.constFn(dart_rti.findType("io|FileLock")))(),
    StringToFile: () => (T$2.StringToFile = dart.constFn(dart_rti.findType("io|File(core|String)")))(),
    UriToFile: () => (T$2.UriToFile = dart.constFn(dart_rti.findType("io|File(core|Uri)")))(),
    Uint8ListToFile: () => (T$2.Uint8ListToFile = dart.constFn(dart_rti.findType("io|File(typed_data|Uint8List)")))(),
    OSErrorAndStringAndStringToFileSystemException: () => (T$2.OSErrorAndStringAndStringToFileSystemException = dart.constFn(dart_rti.findType("io|FileSystemException(io|OSError,core|String,core|String)")))(),
    OSErrorN: () => (T$2.OSErrorN = dart.constFn(dart_rti.findType("io|OSError?")))(),
    VoidToFutureOfPipe: () => (T$2.VoidToFutureOfPipe = dart.constFn(dart_rti.findType("async|Future<io|Pipe>()")))(),
    VoidToPipe: () => (T$2.VoidToPipe = dart.constFn(dart_rti.findType("io|Pipe()")))(),
    _FileStream: () => (T$2._FileStream = dart.constFn(dart_rti.findType("io|_FileStream")))(),
    Uint8ListToNull: () => (T$2.Uint8ListToNull = dart.constFn(dart_rti.findType("core|Null(typed_data|Uint8List)")))(),
    RandomAccessFileTovoid: () => (T$2.RandomAccessFileTovoid = dart.constFn(dart_rti.findType("~(io|RandomAccessFile)")))(),
    StreamControllerOfUint8List: () => (T$2.StreamControllerOfUint8List = dart.constFn(dart_rti.findType("async|StreamController<typed_data|Uint8List>")))(),
    Fn__ToStreamSubscriptionOfUint8List: () => (T$2.Fn__ToStreamSubscriptionOfUint8List = dart.constFn(dart_rti.findType("async|StreamSubscription<typed_data|Uint8List>(~(typed_data|Uint8List)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))(),
    StreamControllerNOfUint8List: () => (T$2.StreamControllerNOfUint8List = dart.constFn(dart_rti.findType("async|StreamController<typed_data|Uint8List>?")))(),
    RandomAccessFileN: () => (T$2.RandomAccessFileN = dart.constFn(dart_rti.findType("io|RandomAccessFile?")))(),
    RandomAccessFile: () => (T$2.RandomAccessFile = dart.constFn(dart_rti.findType("io|RandomAccessFile")))(),
    FileN: () => (T$2.FileN = dart.constFn(dart_rti.findType("io|File?")))(),
    RandomAccessFileToNull: () => (T$2.RandomAccessFileToNull = dart.constFn(dart_rti.findType("core|Null(io|RandomAccessFile)")))(),
    RandomAccessFileToFutureOfvoid: () => (T$2.RandomAccessFileToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(io|RandomAccessFile)")))(),
    voidToFileN: () => (T$2.voidToFileN = dart.constFn(dart_rti.findType("io|File?(~)")))(),
    ObjectNToFutureOfFileN: () => (T$2.ObjectNToFutureOfFileN = dart.constFn(dart_rti.findType("async|Future<io|File?>(core|Object?)")))(),
    VoidToFutureOfFileN: () => (T$2.VoidToFutureOfFileN = dart.constFn(dart_rti.findType("async|Future<io|File?>()")))(),
    FutureOfRandomAccessFile: () => (T$2.FutureOfRandomAccessFile = dart.constFn(dart_rti.findType("async|Future<io|RandomAccessFile>")))(),
    DirectoryNToFutureOfObjectN: () => (T$2.DirectoryNToFutureOfObjectN = dart.constFn(dart_rti.findType("async|Future<core|Object?>(io|Directory?)")))(),
    File: () => (T$2.File = dart.constFn(dart_rti.findType("io|File")))(),
    ObjectNTo_File: () => (T$2.ObjectNTo_File = dart.constFn(dart_rti.findType("io|_File(core|Object?)")))(),
    FileSystemEntityTo_File: () => (T$2.FileSystemEntityTo_File = dart.constFn(dart_rti.findType("io|_File(io|FileSystemEntity)")))(),
    ObjectNToFile: () => (T$2.ObjectNToFile = dart.constFn(dart_rti.findType("io|File(core|Object?)")))(),
    ObjectNTo_RandomAccessFile: () => (T$2.ObjectNTo_RandomAccessFile = dart.constFn(dart_rti.findType("io|_RandomAccessFile(core|Object?)")))(),
    DateTime: () => (T$2.DateTime = dart.constFn(dart_rti.findType("core|DateTime")))(),
    ObjectNToDateTime: () => (T$2.ObjectNToDateTime = dart.constFn(dart_rti.findType("core|DateTime(core|Object?)")))(),
    RandomAccessFileToFutureOfUint8List: () => (T$2.RandomAccessFileToFutureOfUint8List = dart.constFn(dart_rti.findType("async|Future<typed_data|Uint8List>(io|RandomAccessFile)")))(),
    intToNull: () => (T$2.intToNull = dart.constFn(dart_rti.findType("core|Null(core|int)")))(),
    RandomAccessFileAndintToFutureOfUint8List: () => (T$2.RandomAccessFileAndintToFutureOfUint8List = dart.constFn(dart_rti.findType("async|Future<typed_data|Uint8List>(io|RandomAccessFile,core|int)")))(),
    intToFutureOfUint8List: () => (T$2.intToFutureOfUint8List = dart.constFn(dart_rti.findType("async|Future<typed_data|Uint8List>(core|int)")))(),
    RandomAccessFileTo_File: () => (T$2.RandomAccessFileTo_File = dart.constFn(dart_rti.findType("io|_File(io|RandomAccessFile)")))(),
    RandomAccessFileToFutureOrOfFile: () => (T$2.RandomAccessFileToFutureOrOfFile = dart.constFn(dart_rti.findType("io|File/(io|RandomAccessFile)")))(),
    RandomAccessFileToFutureOfFile: () => (T$2.RandomAccessFileToFutureOfFile = dart.constFn(dart_rti.findType("async|Future<io|File>(io|RandomAccessFile)")))(),
    intAndListToFutureOfObjectN: () => (T$2.intAndListToFutureOfObjectN = dart.constFn(dart_rti.findType("async|Future<core|Object?>(core|int,core|List<@>)")))(),
    __ToFutureOfFile: () => (T$2.__ToFutureOfFile = dart.constFn(dart_rti.findType("async|Future<io|File>({exclusive:core|bool,recursive:core|bool})")))(),
    _NamespaceToList: () => (T$2._NamespaceToList = dart.constFn(dart_rti.findType("core|List<@>(io|_Namespace)")))(),
    __Tovoid$2: () => (T$2.__Tovoid$2 = dart.constFn(dart_rti.findType("~({exclusive:core|bool,recursive:core|bool})")))(),
    __ToFutureOfFile$1: () => (T$2.__ToFutureOfFile$1 = dart.constFn(dart_rti.findType("async|Future<io|File>({recursive:core|bool})")))(),
    StringToFutureOfFile: () => (T$2.StringToFutureOfFile = dart.constFn(dart_rti.findType("async|Future<io|File>(core|String)")))(),
    __ToFutureOfRandomAccessFile: () => (T$2.__ToFutureOfRandomAccessFile = dart.constFn(dart_rti.findType("async|Future<io|RandomAccessFile>({mode:io|FileMode})")))(),
    VoidToFutureOfint: () => (T$2.VoidToFutureOfint = dart.constFn(dart_rti.findType("async|Future<core|int>()")))(),
    VoidToFutureOfDateTime: () => (T$2.VoidToFutureOfDateTime = dart.constFn(dart_rti.findType("async|Future<core|DateTime>()")))(),
    VoidToDateTime: () => (T$2.VoidToDateTime = dart.constFn(dart_rti.findType("core|DateTime()")))(),
    DateTimeToFuture: () => (T$2.DateTimeToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|DateTime)")))(),
    _NamespaceAndUint8ListAndintTodynamic: () => (T$2._NamespaceAndUint8ListAndintTodynamic = dart.constFn(dart_rti.findType("@(io|_Namespace,typed_data|Uint8List,core|int)")))(),
    DateTimeTovoid: () => (T$2.DateTimeTovoid = dart.constFn(dart_rti.findType("~(core|DateTime)")))(),
    __ToRandomAccessFile: () => (T$2.__ToRandomAccessFile = dart.constFn(dart_rti.findType("io|RandomAccessFile({mode:io|FileMode})")))(),
    intToRandomAccessFile: () => (T$2.intToRandomAccessFile = dart.constFn(dart_rti.findType("io|RandomAccessFile(core|int)")))(),
    intNAndintNToStreamOfListOfint: () => (T$2.intNAndintNToStreamOfListOfint = dart.constFn(dart_rti.findType("async|Stream<core|List<core|int>>([core|int?,core|int?])")))(),
    __ToIOSink: () => (T$2.__ToIOSink = dart.constFn(dart_rti.findType("io|IOSink({encoding:convert|Encoding,mode:io|FileMode})")))(),
    VoidToFutureOfUint8List: () => (T$2.VoidToFutureOfUint8List = dart.constFn(dart_rti.findType("async|Future<typed_data|Uint8List>()")))(),
    ListOfintAndEncodingToString: () => (T$2.ListOfintAndEncodingToString = dart.constFn(dart_rti.findType("core|String(core|List<core|int>,convert|Encoding)")))(),
    __ToFutureOfString: () => (T$2.__ToFutureOfString = dart.constFn(dart_rti.findType("async|Future<core|String>({encoding:convert|Encoding})")))(),
    __ToString: () => (T$2.__ToString = dart.constFn(dart_rti.findType("core|String({encoding:convert|Encoding})")))(),
    __ToFutureOfListOfString: () => (T$2.__ToFutureOfListOfString = dart.constFn(dart_rti.findType("async|Future<core|List<core|String>>({encoding:convert|Encoding})")))(),
    __ToListOfString: () => (T$2.__ToListOfString = dart.constFn(dart_rti.findType("core|List<core|String>({encoding:convert|Encoding})")))(),
    ListOfint__ToFutureOfFile: () => (T$2.ListOfint__ToFutureOfFile = dart.constFn(dart_rti.findType("async|Future<io|File>(core|List<core|int>{flush:core|bool,mode:io|FileMode})")))(),
    ListOfint__Tovoid: () => (T$2.ListOfint__Tovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>{flush:core|bool,mode:io|FileMode})")))(),
    String__ToFutureOfFile: () => (T$2.String__ToFutureOfFile = dart.constFn(dart_rti.findType("async|Future<io|File>(core|String{encoding:convert|Encoding,flush:core|bool,mode:io|FileMode})")))(),
    String__Tovoid$2: () => (T$2.String__Tovoid$2 = dart.constFn(dart_rti.findType("~(core|String{encoding:convert|Encoding,flush:core|bool,mode:io|FileMode})")))(),
    ObjectAndStringAndStringTodynamic: () => (T$2.ObjectAndStringAndStringTodynamic = dart.constFn(dart_rti.findType("@(core|Object,core|String,core|String)")))(),
    intTo_RandomAccessFileOps: () => (T$2.intTo_RandomAccessFileOps = dart.constFn(dart_rti.findType("io|_RandomAccessFileOps(core|int)")))(),
    _FileResourceInfo: () => (T$2._FileResourceInfo = dart.constFn(dart_rti.findType("io|_FileResourceInfo")))(),
    ListOfintAndintAndintNToFutureOfint: () => (T$2.ListOfintAndintAndintNToFutureOfint = dart.constFn(dart_rti.findType("async|Future<core|int>(core|List<core|int>[core|int,core|int?])")))(),
    ListOfintAndintAndintNToint: () => (T$2.ListOfintAndintAndintNToint = dart.constFn(dart_rti.findType("core|int(core|List<core|int>[core|int,core|int?])")))(),
    intToFutureOfRandomAccessFile: () => (T$2.intToFutureOfRandomAccessFile = dart.constFn(dart_rti.findType("async|Future<io|RandomAccessFile>(core|int)")))(),
    ListOfintAndintAndintNToFutureOfRandomAccessFile: () => (T$2.ListOfintAndintAndintNToFutureOfRandomAccessFile = dart.constFn(dart_rti.findType("async|Future<io|RandomAccessFile>(core|List<core|int>[core|int,core|int?])")))(),
    ListOfintAndintAndintNTovoid: () => (T$2.ListOfintAndintAndintNTovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>[core|int,core|int?])")))(),
    String__ToFutureOfRandomAccessFile: () => (T$2.String__ToFutureOfRandomAccessFile = dart.constFn(dart_rti.findType("async|Future<io|RandomAccessFile>(core|String{encoding:convert|Encoding})")))(),
    String__Tovoid$3: () => (T$2.String__Tovoid$3 = dart.constFn(dart_rti.findType("~(core|String{encoding:convert|Encoding})")))(),
    VoidToFutureOfRandomAccessFile: () => (T$2.VoidToFutureOfRandomAccessFile = dart.constFn(dart_rti.findType("async|Future<io|RandomAccessFile>()")))(),
    FileLockToint: () => (T$2.FileLockToint = dart.constFn(dart_rti.findType("core|int(io|FileLock)")))(),
    FileLockAndintAndintToFutureOfRandomAccessFile: () => (T$2.FileLockAndintAndintToFutureOfRandomAccessFile = dart.constFn(dart_rti.findType("async|Future<io|RandomAccessFile>([io|FileLock,core|int,core|int])")))(),
    intAndintToFutureOfRandomAccessFile: () => (T$2.intAndintToFutureOfRandomAccessFile = dart.constFn(dart_rti.findType("async|Future<io|RandomAccessFile>([core|int,core|int])")))(),
    FileLockAndintAndintTovoid: () => (T$2.FileLockAndintAndintTovoid = dart.constFn(dart_rti.findType("~([io|FileLock,core|int,core|int])")))(),
    intAndintTovoid$1: () => (T$2.intAndintTovoid$1 = dart.constFn(dart_rti.findType("~([core|int,core|int])")))(),
    intAndList__ToFutureOfObjectN: () => (T$2.intAndList__ToFutureOfObjectN = dart.constFn(dart_rti.findType("async|Future<core|Object?>(core|int,core|List<@>{markClosed:core|bool})")))(),
    _FileResourceInfoN: () => (T$2._FileResourceInfoN = dart.constFn(dart_rti.findType("io|_FileResourceInfo?")))(),
    _RandomAccessFileOps: () => (T$2._RandomAccessFileOps = dart.constFn(dart_rti.findType("io|_RandomAccessFileOps")))(),
    _ReadPipe: () => (T$2._ReadPipe = dart.constFn(dart_rti.findType("io|_ReadPipe")))(),
    _WritePipe: () => (T$2._WritePipe = dart.constFn(dart_rti.findType("io|_WritePipe")))(),
    _IOSinkImpl: () => (T$2._IOSinkImpl = dart.constFn(dart_rti.findType("io|_IOSinkImpl")))(),
    dynamicAndStackTraceNTovoid: () => (T$2.dynamicAndStackTraceNTovoid = dart.constFn(dart_rti.findType("~(@,core|StackTrace?)")))(),
    _Pipe: () => (T$2._Pipe = dart.constFn(dart_rti.findType("io|_Pipe")))(),
    ReadPipe: () => (T$2.ReadPipe = dart.constFn(dart_rti.findType("io|ReadPipe")))(),
    WritePipe: () => (T$2.WritePipe = dart.constFn(dart_rti.findType("io|WritePipe")))(),
    VoidToFutureOf_Pipe: () => (T$2.VoidToFutureOf_Pipe = dart.constFn(dart_rti.findType("async|Future<io|_Pipe>()")))(),
    VoidTo_Pipe: () => (T$2.VoidTo_Pipe = dart.constFn(dart_rti.findType("io|_Pipe()")))(),
    StringL: () => (T$2.StringL = dart.constFn(dart_rti.findType("core|String*")))(),
    intToFileSystemEntityType: () => (T$2.intToFileSystemEntityType = dart.constFn(dart_rti.findType("io|FileSystemEntityType(core|int)")))(),
    ListOfFileSystemEntityType: () => (T$2.ListOfFileSystemEntityType = dart.constFn(dart_rti.findType("core|List<io|FileSystemEntityType>")))(),
    FileSystemEntityTypeL: () => (T$2.FileSystemEntityTypeL = dart.constFn(dart_rti.findType("io|FileSystemEntityType*")))(),
    FileStat: () => (T$2.FileStat = dart.constFn(dart_rti.findType("io|FileStat")))(),
    ObjectNToFileStat: () => (T$2.ObjectNToFileStat = dart.constFn(dart_rti.findType("io|FileStat(core|Object?)")))(),
    _NamespaceAndStringTodynamic: () => (T$2._NamespaceAndStringTodynamic = dart.constFn(dart_rti.findType("@(io|_Namespace,core|String)")))(),
    StringToFileStat: () => (T$2.StringToFileStat = dart.constFn(dart_rti.findType("io|FileStat(core|String)")))(),
    StringToFutureOfFileStat: () => (T$2.StringToFutureOfFileStat = dart.constFn(dart_rti.findType("async|Future<io|FileStat>(core|String)")))(),
    StringAndintAndboolToStreamOfFileSystemEvent: () => (T$2.StringAndintAndboolToStreamOfFileSystemEvent = dart.constFn(dart_rti.findType("async|Stream<io|FileSystemEvent>(core|String,core|int,core|bool)")))(),
    Stopwatch: () => (T$2.Stopwatch = dart.constFn(dart_rti.findType("core|Stopwatch")))(),
    _FileResourceInfoToMapOfString$dynamic: () => (T$2._FileResourceInfoToMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>(io|_FileResourceInfo)")))(),
    ServiceExtensionResponse: () => (T$2.ServiceExtensionResponse = dart.constFn(dart_rti.findType("developer|ServiceExtensionResponse")))(),
    _FileResourceInfoTodynamic: () => (T$2._FileResourceInfoTodynamic = dart.constFn(dart_rti.findType("@(io|_FileResourceInfo)")))(),
    VoidToIterableOfMapOfString$dynamic: () => (T$2.VoidToIterableOfMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Iterable<core|Map<core|String,@>>()")))(),
    MapOfint$_FileResourceInfo: () => (T$2.MapOfint$_FileResourceInfo = dart.constFn(dart_rti.findType("core|Map<core|int,io|_FileResourceInfo>")))(),
    _SpawnedProcessResourceInfoToMapOfString$dynamic: () => (T$2._SpawnedProcessResourceInfoToMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>(io|_SpawnedProcessResourceInfo)")))(),
    _SpawnedProcessResourceInfoTodynamic: () => (T$2._SpawnedProcessResourceInfoTodynamic = dart.constFn(dart_rti.findType("@(io|_SpawnedProcessResourceInfo)")))(),
    _Process: () => (T$2._Process = dart.constFn(dart_rti.findType("io|_Process")))(),
    MapOfint$_SpawnedProcessResourceInfo: () => (T$2.MapOfint$_SpawnedProcessResourceInfo = dart.constFn(dart_rti.findType("core|Map<core|int,io|_SpawnedProcessResourceInfo>")))(),
    _SpawnedProcessResourceInfo: () => (T$2._SpawnedProcessResourceInfo = dart.constFn(dart_rti.findType("io|_SpawnedProcessResourceInfo")))(),
    StreamConsumerOfListOfint__ToIOSink: () => (T$2.StreamConsumerOfListOfint__ToIOSink = dart.constFn(dart_rti.findType("io|IOSink(async|StreamConsumer<core|List<core|int>>{encoding:convert|Encoding})")))(),
    EncodingN: () => (T$2.EncodingN = dart.constFn(dart_rti.findType("convert|Encoding?")))(),
    StringToLink: () => (T$2.StringToLink = dart.constFn(dart_rti.findType("io|Link(core|String)")))(),
    Uint8ListToLink: () => (T$2.Uint8ListToLink = dart.constFn(dart_rti.findType("io|Link(typed_data|Uint8List)")))(),
    UriToLink: () => (T$2.UriToLink = dart.constFn(dart_rti.findType("io|Link(core|Uri)")))(),
    Link: () => (T$2.Link = dart.constFn(dart_rti.findType("io|Link")))(),
    ObjectNTo_Link: () => (T$2.ObjectNTo_Link = dart.constFn(dart_rti.findType("io|_Link(core|Object?)")))(),
    FileSystemEntityToFutureOfLink: () => (T$2.FileSystemEntityToFutureOfLink = dart.constFn(dart_rti.findType("async|Future<io|Link>(io|FileSystemEntity)")))(),
    FileSystemEntityTo_Link: () => (T$2.FileSystemEntityTo_Link = dart.constFn(dart_rti.findType("io|_Link(io|FileSystemEntity)")))(),
    ObjectNToLink: () => (T$2.ObjectNToLink = dart.constFn(dart_rti.findType("io|Link(core|Object?)")))(),
    String__ToFutureOfLink: () => (T$2.String__ToFutureOfLink = dart.constFn(dart_rti.findType("async|Future<io|Link>(core|String{recursive:core|bool})")))(),
    String__Tovoid$4: () => (T$2.String__Tovoid$4 = dart.constFn(dart_rti.findType("~(core|String{recursive:core|bool})")))(),
    StringToFutureOfLink: () => (T$2.StringToFutureOfLink = dart.constFn(dart_rti.findType("async|Future<io|Link>(core|String)")))(),
    __ToFutureOfLink: () => (T$2.__ToFutureOfLink = dart.constFn(dart_rti.findType("async|Future<io|Link>({recursive:core|bool})")))(),
    ObjectNAndStringAndStringTodynamic: () => (T$2.ObjectNAndStringAndStringTodynamic = dart.constFn(dart_rti.findType("@(core|Object?,core|String[core|String])")))()
  };
  var T$3 = {
    _Namespace: () => (T$3._Namespace = dart.constFn(dart_rti.findType("io|_Namespace")))(),
    MapOfString$dynamicTobool: () => (T$3.MapOfString$dynamicTobool = dart.constFn(dart_rti.findType("core|bool(core|Map<core|String,@>)")))(),
    FutureOfMapOfString$dynamic: () => (T$3.FutureOfMapOfString$dynamic = dart.constFn(dart_rti.findType("async|Future<core|Map<core|String,@>>")))(),
    MapOfString$dynamicToFutureOfMapOfString$dynamic: () => (T$3.MapOfString$dynamicToFutureOfMapOfString$dynamic = dart.constFn(dart_rti.findType("async|Future<core|Map<core|String,@>>(core|Map<core|String,@>)")))(),
    ListOfMapOfString$dynamic: () => (T$3.ListOfMapOfString$dynamic = dart.constFn(dart_rti.findType("core|List<core|Map<core|String,@>>")))(),
    _SocketStatisticToMapOfString$dynamic: () => (T$3._SocketStatisticToMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>(io|_SocketStatistic)")))(),
    InternetAddress: () => (T$3.InternetAddress = dart.constFn(dart_rti.findType("io|InternetAddress")))(),
    intAndStringAndInternetAddress__Tovoid: () => (T$3.intAndStringAndInternetAddress__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|String,io|InternetAddress,core|int)")))(),
    intAnd_SocketProfileTypeAnddynamicTovoid: () => (T$3.intAnd_SocketProfileTypeAnddynamicTovoid = dart.constFn(dart_rti.findType("~(core|int,io|_SocketProfileType[@])")))(),
    MapOfString$_SocketStatistic: () => (T$3.MapOfString$_SocketStatistic = dart.constFn(dart_rti.findType("core|Map<core|String,io|_SocketStatistic>")))(),
    _SocketStatistic: () => (T$3._SocketStatistic = dart.constFn(dart_rti.findType("io|_SocketStatistic")))(),
    ListOf_SocketProfileType: () => (T$3.ListOf_SocketProfileType = dart.constFn(dart_rti.findType("core|List<io|_SocketProfileType>")))(),
    _SocketProfileType: () => (T$3._SocketProfileType = dart.constFn(dart_rti.findType("io|_SocketProfileType")))(),
    _SocketProfileTypeL: () => (T$3._SocketProfileTypeL = dart.constFn(dart_rti.findType("io|_SocketProfileType*")))(),
    MapOfString$dynamicAndStringAndObjectNTovoid: () => (T$3.MapOfString$dynamicAndStringAndObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Map<core|String,@>,core|String,core|Object?)")))(),
    IOOverridesN: () => (T$3.IOOverridesN = dart.constFn(dart_rti.findType("io|IOOverrides?")))(),
    _IOOverridesScope: () => (T$3._IOOverridesScope = dart.constFn(dart_rti.findType("io|_IOOverridesScope")))(),
    Fn__ToR: () => (T$3.Fn__ToR = dart.constFn(dart_rti.findType("0^(0^(){createDirectory:io|Directory(core|String)?,createFile:io|File(core|String)?,createLink:io|Link(core|String)?,fsWatch:async|Stream<io|FileSystemEvent>(core|String,core|int,core|bool)?,fsWatchIsSupported:core|bool()?,fseGetType:async|Future<io|FileSystemEntityType>(core|String,core|bool)?,fseGetTypeSync:io|FileSystemEntityType(core|String,core|bool)?,fseIdentical:async|Future<core|bool>(core|String,core|String)?,fseIdenticalSync:core|bool(core|String,core|String)?,getCurrentDirectory:io|Directory()?,getSystemTempDirectory:io|Directory()?,serverSocketBind:async|Future<io|ServerSocket>(@,core|int{backlog:core|int,shared:core|bool,v6Only:core|bool})?,setCurrentDirectory:~(core|String)?,socketConnect:async|Future<io|Socket>(@,core|int{sourceAddress:@,sourcePort:core|int,timeout:core|Duration?})?,socketStartConnect:async|Future<io|ConnectionTask<io|Socket>>(@,core|int{sourceAddress:@,sourcePort:core|int})?,stat:async|Future<io|FileStat>(core|String)?,statSync:io|FileStat(core|String)?,stderr:io|Stdout()?,stdin:io|Stdin()?,stdout:io|Stdout()?})<core|Object?>")))(),
    FnAndIOOverridesToR: () => (T$3.FnAndIOOverridesToR = dart.constFn(dart_rti.findType("0^(0^(),io|IOOverrides)<core|Object?>")))(),
    VoidToDirectory: () => (T$3.VoidToDirectory = dart.constFn(dart_rti.findType("io|Directory()")))(),
    StringAndboolToFutureOfFileSystemEntityType: () => (T$3.StringAndboolToFutureOfFileSystemEntityType = dart.constFn(dart_rti.findType("async|Future<io|FileSystemEntityType>(core|String,core|bool)")))(),
    StringAndboolToFileSystemEntityType: () => (T$3.StringAndboolToFileSystemEntityType = dart.constFn(dart_rti.findType("io|FileSystemEntityType(core|String,core|bool)")))(),
    dynamicAndint__ToFutureOfSocket: () => (T$3.dynamicAndint__ToFutureOfSocket = dart.constFn(dart_rti.findType("async|Future<io|Socket>(@,core|int{sourceAddress:@,sourcePort:core|int,timeout:core|Duration?})")))(),
    dynamicAndint__ToFutureOfConnectionTaskOfSocket: () => (T$3.dynamicAndint__ToFutureOfConnectionTaskOfSocket = dart.constFn(dart_rti.findType("async|Future<io|ConnectionTask<io|Socket>>(@,core|int{sourceAddress:@,sourcePort:core|int})")))(),
    dynamicAndint__ToFutureOfServerSocket: () => (T$3.dynamicAndint__ToFutureOfServerSocket = dart.constFn(dart_rti.findType("async|Future<io|ServerSocket>(@,core|int{backlog:core|int,shared:core|bool,v6Only:core|bool})")))(),
    Stdin: () => (T$3.Stdin = dart.constFn(dart_rti.findType("io|Stdin")))(),
    Stdout: () => (T$3.Stdout = dart.constFn(dart_rti.findType("io|Stdout")))(),
    StringToNDirectory: () => (T$3.StringToNDirectory = dart.constFn(dart_rti.findType("io|Directory(core|String)?")))(),
    VoidToNDirectory: () => (T$3.VoidToNDirectory = dart.constFn(dart_rti.findType("io|Directory()?")))(),
    StringToNvoid: () => (T$3.StringToNvoid = dart.constFn(dart_rti.findType("~(core|String)?")))(),
    StringToNFile: () => (T$3.StringToNFile = dart.constFn(dart_rti.findType("io|File(core|String)?")))(),
    StringToNFutureOfFileStat: () => (T$3.StringToNFutureOfFileStat = dart.constFn(dart_rti.findType("async|Future<io|FileStat>(core|String)?")))(),
    StringToNFileStat: () => (T$3.StringToNFileStat = dart.constFn(dart_rti.findType("io|FileStat(core|String)?")))(),
    StringAndStringToNFutureOfbool: () => (T$3.StringAndStringToNFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(core|String,core|String)?")))(),
    StringAndStringToNbool: () => (T$3.StringAndStringToNbool = dart.constFn(dart_rti.findType("core|bool(core|String,core|String)?")))(),
    StringAndboolToNFutureOfFileSystemEntityType: () => (T$3.StringAndboolToNFutureOfFileSystemEntityType = dart.constFn(dart_rti.findType("async|Future<io|FileSystemEntityType>(core|String,core|bool)?")))(),
    StringAndboolToNFileSystemEntityType: () => (T$3.StringAndboolToNFileSystemEntityType = dart.constFn(dart_rti.findType("io|FileSystemEntityType(core|String,core|bool)?")))(),
    StringAndintAndboolToNStreamOfFileSystemEvent: () => (T$3.StringAndintAndboolToNStreamOfFileSystemEvent = dart.constFn(dart_rti.findType("async|Stream<io|FileSystemEvent>(core|String,core|int,core|bool)?")))(),
    VoidToNbool: () => (T$3.VoidToNbool = dart.constFn(dart_rti.findType("core|bool()?")))(),
    StringToNLink: () => (T$3.StringToNLink = dart.constFn(dart_rti.findType("io|Link(core|String)?")))(),
    dynamicAndint__ToNFutureOfSocket: () => (T$3.dynamicAndint__ToNFutureOfSocket = dart.constFn(dart_rti.findType("async|Future<io|Socket>(@,core|int{sourceAddress:@,sourcePort:core|int,timeout:core|Duration?})?")))(),
    dynamicAndint__ToNFutureOfConnectionTaskOfSocket: () => (T$3.dynamicAndint__ToNFutureOfConnectionTaskOfSocket = dart.constFn(dart_rti.findType("async|Future<io|ConnectionTask<io|Socket>>(@,core|int{sourceAddress:@,sourcePort:core|int})?")))(),
    dynamicAndint__ToNFutureOfServerSocket: () => (T$3.dynamicAndint__ToNFutureOfServerSocket = dart.constFn(dart_rti.findType("async|Future<io|ServerSocket>(@,core|int{backlog:core|int,shared:core|bool,v6Only:core|bool})?")))(),
    VoidToNStdin: () => (T$3.VoidToNStdin = dart.constFn(dart_rti.findType("io|Stdin()?")))(),
    VoidToNStdout: () => (T$3.VoidToNStdout = dart.constFn(dart_rti.findType("io|Stdout()?")))(),
    VoidToUri: () => (T$3.VoidToUri = dart.constFn(dart_rti.findType("core|Uri()")))(),
    VoidToNString: () => (T$3.VoidToNString = dart.constFn(dart_rti.findType("core|String()?")))(),
    intToNever: () => (T$3.intToNever = dart.constFn(dart_rti.findType("0&(core|int)")))(),
    ProcessNToint: () => (T$3.ProcessNToint = dart.constFn(dart_rti.findType("core|int(io|Process?)")))(),
    ProcessSignalToStreamOfProcessSignal: () => (T$3.ProcessSignalToStreamOfProcessSignal = dart.constFn(dart_rti.findType("async|Stream<io|ProcessSignal>(io|ProcessSignal)")))(),
    ProcessStartModeL: () => (T$3.ProcessStartModeL = dart.constFn(dart_rti.findType("io|ProcessStartMode*")))(),
    ListOfProcessStartMode: () => (T$3.ListOfProcessStartMode = dart.constFn(dart_rti.findType("core|List<io|ProcessStartMode>")))(),
    ProcessStartMode: () => (T$3.ProcessStartMode = dart.constFn(dart_rti.findType("io|ProcessStartMode")))(),
    StringAndListOfString__ToFutureOfProcess: () => (T$3.StringAndListOfString__ToFutureOfProcess = dart.constFn(dart_rti.findType("async|Future<io|Process>(core|String,core|List<core|String>{environment:core|Map<core|String,core|String>?,includeParentEnvironment:core|bool,mode:io|ProcessStartMode,runInShell:core|bool,workingDirectory:core|String?})")))(),
    StringAndListOfString__ToFutureOfProcessResult: () => (T$3.StringAndListOfString__ToFutureOfProcessResult = dart.constFn(dart_rti.findType("async|Future<io|ProcessResult>(core|String,core|List<core|String>{environment:core|Map<core|String,core|String>?,includeParentEnvironment:core|bool,runInShell:core|bool,stderrEncoding:convert|Encoding?,stdoutEncoding:convert|Encoding?,workingDirectory:core|String?})")))(),
    StringAndListOfString__ToProcessResult: () => (T$3.StringAndListOfString__ToProcessResult = dart.constFn(dart_rti.findType("io|ProcessResult(core|String,core|List<core|String>{environment:core|Map<core|String,core|String>?,includeParentEnvironment:core|bool,runInShell:core|bool,stderrEncoding:convert|Encoding?,stdoutEncoding:convert|Encoding?,workingDirectory:core|String?})")))(),
    intAndProcessSignalTobool: () => (T$3.intAndProcessSignalTobool = dart.constFn(dart_rti.findType("core|bool(core|int[io|ProcessSignal])")))(),
    VoidToStreamOfProcessSignal: () => (T$3.VoidToStreamOfProcessSignal = dart.constFn(dart_rti.findType("async|Stream<io|ProcessSignal>()")))(),
    ProcessSignal: () => (T$3.ProcessSignal = dart.constFn(dart_rti.findType("io|ProcessSignal")))(),
    SecureServerSocket: () => (T$3.SecureServerSocket = dart.constFn(dart_rti.findType("io|SecureServerSocket")))(),
    RawSecureServerSocketToSecureServerSocket: () => (T$3.RawSecureServerSocketToSecureServerSocket = dart.constFn(dart_rti.findType("io|SecureServerSocket(io|RawSecureServerSocket)")))(),
    SecureSocket: () => (T$3.SecureSocket = dart.constFn(dart_rti.findType("io|SecureSocket")))(),
    RawSecureSocketToSecureSocket: () => (T$3.RawSecureSocketToSecureSocket = dart.constFn(dart_rti.findType("io|SecureSocket(io|RawSecureSocket)")))(),
    dynamicAndintAndSecurityContextN__ToFutureOfSecureServerSocket: () => (T$3.dynamicAndintAndSecurityContextN__ToFutureOfSecureServerSocket = dart.constFn(dart_rti.findType("async|Future<io|SecureServerSocket>(@,core|int,io|SecurityContext?{backlog:core|int,requestClientCertificate:core|bool,requireClientCertificate:core|bool,shared:core|bool,supportedProtocols:core|List<core|String>?,v6Only:core|bool})")))(),
    Fn__ToStreamSubscriptionOfSecureSocket: () => (T$3.Fn__ToStreamSubscriptionOfSecureSocket = dart.constFn(dart_rti.findType("async|StreamSubscription<io|SecureSocket>(~(io|SecureSocket)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))(),
    VoidToFutureOfSecureServerSocket: () => (T$3.VoidToFutureOfSecureServerSocket = dart.constFn(dart_rti.findType("async|Future<io|SecureServerSocket>()")))(),
    RawSecureServerSocket: () => (T$3.RawSecureServerSocket = dart.constFn(dart_rti.findType("io|RawSecureServerSocket")))(),
    RawSecureSocket: () => (T$3.RawSecureSocket = dart.constFn(dart_rti.findType("io|RawSecureSocket")))(),
    RawServerSocketToRawSecureServerSocket: () => (T$3.RawServerSocketToRawSecureServerSocket = dart.constFn(dart_rti.findType("io|RawSecureServerSocket(io|RawServerSocket)")))(),
    RawSecureSocketToNull: () => (T$3.RawSecureSocketToNull = dart.constFn(dart_rti.findType("core|Null(io|RawSecureSocket)")))(),
    _RawSocketBase: () => (T$3._RawSocketBase = dart.constFn(dart_rti.findType("io|_RawSocketBase")))(),
    StreamControllerOfRawSecureSocket: () => (T$3.StreamControllerOfRawSecureSocket = dart.constFn(dart_rti.findType("async|StreamController<io|RawSecureSocket>")))(),
    dynamicAndintAndSecurityContextN__ToFutureOfRawSecureServerSocket: () => (T$3.dynamicAndintAndSecurityContextN__ToFutureOfRawSecureServerSocket = dart.constFn(dart_rti.findType("async|Future<io|RawSecureServerSocket>(@,core|int,io|SecurityContext?{backlog:core|int,requestClientCertificate:core|bool,requireClientCertificate:core|bool,shared:core|bool,supportedProtocols:core|List<core|String>?,v6Only:core|bool})")))(),
    Fn__ToStreamSubscriptionOfRawSecureSocket: () => (T$3.Fn__ToStreamSubscriptionOfRawSecureSocket = dart.constFn(dart_rti.findType("async|StreamSubscription<io|RawSecureSocket>(~(io|RawSecureSocket)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))(),
    VoidToFutureOfRawSecureServerSocket: () => (T$3.VoidToFutureOfRawSecureServerSocket = dart.constFn(dart_rti.findType("async|Future<io|RawSecureServerSocket>()")))(),
    RawSocketTovoid: () => (T$3.RawSocketTovoid = dart.constFn(dart_rti.findType("~(io|RawSocket)")))(),
    RawServerSocket: () => (T$3.RawServerSocket = dart.constFn(dart_rti.findType("io|RawServerSocket")))(),
    StreamControllerNOfRawSecureSocket: () => (T$3.StreamControllerNOfRawSecureSocket = dart.constFn(dart_rti.findType("async|StreamController<io|RawSecureSocket>?")))(),
    StreamSubscriptionNOfRawSocket: () => (T$3.StreamSubscriptionNOfRawSocket = dart.constFn(dart_rti.findType("async|StreamSubscription<io|RawSocket>?")))(),
    SecurityContextN: () => (T$3.SecurityContextN = dart.constFn(dart_rti.findType("io|SecurityContext?")))(),
    ConnectionTaskOfSecureSocket: () => (T$3.ConnectionTaskOfSecureSocket = dart.constFn(dart_rti.findType("io|ConnectionTask<io|SecureSocket>")))(),
    ConnectionTaskOfRawSecureSocketToConnectionTaskOfSecureSocket: () => (T$3.ConnectionTaskOfRawSecureSocketToConnectionTaskOfSecureSocket = dart.constFn(dart_rti.findType("io|ConnectionTask<io|SecureSocket>(io|ConnectionTask<io|RawSecureSocket>)")))(),
    RawSocket: () => (T$3.RawSocket = dart.constFn(dart_rti.findType("io|RawSocket")))(),
    StreamSubscriptionNOfRawSocketEvent: () => (T$3.StreamSubscriptionNOfRawSocketEvent = dart.constFn(dart_rti.findType("async|StreamSubscription<io|RawSocketEvent>?")))(),
    ListOfObjectNToFutureOfRawSecureSocket: () => (T$3.ListOfObjectNToFutureOfRawSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|RawSecureSocket>(core|List<core|Object?>)")))(),
    dynamicAndint__ToFutureOfSecureSocket: () => (T$3.dynamicAndint__ToFutureOfSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|SecureSocket>(@,core|int{context:io|SecurityContext?,keyLog:~(core|String)?,onBadCertificate:core|bool(io|X509Certificate)?,supportedProtocols:core|List<core|String>?,timeout:core|Duration?})")))(),
    dynamicAndint__ToFutureOfConnectionTaskOfSecureSocket: () => (T$3.dynamicAndint__ToFutureOfConnectionTaskOfSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|ConnectionTask<io|SecureSocket>>(@,core|int{context:io|SecurityContext?,keyLog:~(core|String)?,onBadCertificate:core|bool(io|X509Certificate)?,supportedProtocols:core|List<core|String>?})")))(),
    Socket__ToFutureOfSecureSocket: () => (T$3.Socket__ToFutureOfSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|SecureSocket>(io|Socket{context:io|SecurityContext?,host:@,keyLog:~(core|String)?,onBadCertificate:core|bool(io|X509Certificate)?,supportedProtocols:core|List<core|String>?})")))(),
    SocketAndSecurityContextN__ToFutureOfSecureSocket: () => (T$3.SocketAndSecurityContextN__ToFutureOfSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|SecureSocket>(io|Socket,io|SecurityContext?{bufferedData:core|List<core|int>?,requestClientCertificate:core|bool,requireClientCertificate:core|bool,supportedProtocols:core|List<core|String>?})")))(),
    RawSocketToFutureOfRawSecureSocket: () => (T$3.RawSocketToFutureOfRawSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|RawSecureSocket>(io|RawSocket)")))(),
    ConnectionTaskOfRawSecureSocket: () => (T$3.ConnectionTaskOfRawSecureSocket = dart.constFn(dart_rti.findType("io|ConnectionTask<io|RawSecureSocket>")))(),
    ConnectionTaskOfRawSocketToConnectionTaskOfRawSecureSocket: () => (T$3.ConnectionTaskOfRawSocketToConnectionTaskOfRawSecureSocket = dart.constFn(dart_rti.findType("io|ConnectionTask<io|RawSecureSocket>(io|ConnectionTask<io|RawSocket>)")))(),
    dynamicAndint__ToFutureOfRawSecureSocket: () => (T$3.dynamicAndint__ToFutureOfRawSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|RawSecureSocket>(@,core|int{context:io|SecurityContext?,keyLog:~(core|String)?,onBadCertificate:core|bool(io|X509Certificate)?,supportedProtocols:core|List<core|String>?,timeout:core|Duration?})")))(),
    dynamicAndint__ToFutureOfConnectionTaskOfRawSecureSocket: () => (T$3.dynamicAndint__ToFutureOfConnectionTaskOfRawSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|ConnectionTask<io|RawSecureSocket>>(@,core|int{context:io|SecurityContext?,keyLog:~(core|String)?,onBadCertificate:core|bool(io|X509Certificate)?,supportedProtocols:core|List<core|String>?})")))(),
    RawSocket__ToFutureOfRawSecureSocket: () => (T$3.RawSocket__ToFutureOfRawSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|RawSecureSocket>(io|RawSocket{context:io|SecurityContext?,host:@,keyLog:~(core|String)?,onBadCertificate:core|bool(io|X509Certificate)?,subscription:async|StreamSubscription<io|RawSocketEvent>?,supportedProtocols:core|List<core|String>?})")))(),
    RawSocketAndSecurityContextN__ToFutureOfRawSecureSocket: () => (T$3.RawSocketAndSecurityContextN__ToFutureOfRawSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|RawSecureSocket>(io|RawSocket,io|SecurityContext?{bufferedData:core|List<core|int>?,requestClientCertificate:core|bool,requireClientCertificate:core|bool,subscription:async|StreamSubscription<io|RawSocketEvent>?,supportedProtocols:core|List<core|String>?})")))(),
    VoidToX509Certificate: () => (T$3.VoidToX509Certificate = dart.constFn(dart_rti.findType("io|X509Certificate()")))(),
    _RawSecureSocket: () => (T$3._RawSecureSocket = dart.constFn(dart_rti.findType("io|_RawSecureSocket")))(),
    RawSocketEvent: () => (T$3.RawSocketEvent = dart.constFn(dart_rti.findType("io|RawSocketEvent")))(),
    _FilterStatus: () => (T$3._FilterStatus = dart.constFn(dart_rti.findType("io|_FilterStatus")))(),
    StreamSubscriptionOfRawSocketEvent: () => (T$3.StreamSubscriptionOfRawSocketEvent = dart.constFn(dart_rti.findType("async|StreamSubscription<io|RawSocketEvent>")))(),
    dynamicAndintAndbool__ToFutureOf_RawSecureSocket: () => (T$3.dynamicAndintAndbool__ToFutureOf_RawSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|_RawSecureSocket>(@,core|int,core|bool,io|RawSocket{bufferedData:core|List<core|int>?,context:io|SecurityContext?,keyLog:~(core|String)?,onBadCertificate:core|bool(io|X509Certificate)?,requestClientCertificate:core|bool,requireClientCertificate:core|bool,subscription:async|StreamSubscription<io|RawSocketEvent>?,supportedProtocols:core|List<core|String>?})")))(),
    Fn__ToStreamSubscriptionOfRawSocketEvent: () => (T$3.Fn__ToStreamSubscriptionOfRawSocketEvent = dart.constFn(dart_rti.findType("async|StreamSubscription<io|RawSocketEvent>(~(io|RawSocketEvent)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))(),
    dynamicAndintAndbool__Tovoid: () => (T$3.dynamicAndintAndbool__Tovoid = dart.constFn(dart_rti.findType("~(@,core|int,core|bool,core|bool)")))(),
    VoidToFutureOfRawSecureSocket: () => (T$3.VoidToFutureOfRawSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|RawSecureSocket>()")))(),
    RawSocketNTovoid: () => (T$3.RawSocketNTovoid = dart.constFn(dart_rti.findType("~([io|RawSocket?])")))(),
    SocketDirectionTovoid: () => (T$3.SocketDirectionTovoid = dart.constFn(dart_rti.findType("~(io|SocketDirection)")))(),
    intNToUint8ListN: () => (T$3.intNToUint8ListN = dart.constFn(dart_rti.findType("typed_data|Uint8List?([core|int?])")))(),
    intNToSocketMessageN: () => (T$3.intNToSocketMessageN = dart.constFn(dart_rti.findType("io|SocketMessage?([core|int?])")))(),
    ListOfSocketControlMessageAndListOfintAndint__Toint: () => (T$3.ListOfSocketControlMessageAndListOfintAndint__Toint = dart.constFn(dart_rti.findType("core|int(core|List<io|SocketControlMessage>,core|List<core|int>[core|int,core|int?])")))(),
    X509CertificateN: () => (T$3.X509CertificateN = dart.constFn(dart_rti.findType("io|X509Certificate?")))(),
    X509CertificateTobool: () => (T$3.X509CertificateTobool = dart.constFn(dart_rti.findType("core|bool(io|X509Certificate)")))(),
    SocketOptionAndboolTobool: () => (T$3.SocketOptionAndboolTobool = dart.constFn(dart_rti.findType("core|bool(io|SocketOption,core|bool)")))(),
    RawSocketOptionToUint8List: () => (T$3.RawSocketOptionToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(io|RawSocketOption)")))(),
    RawSocketOptionTovoid: () => (T$3.RawSocketOptionTovoid = dart.constFn(dart_rti.findType("~(io|RawSocketOption)")))(),
    RawSocketEventTovoid: () => (T$3.RawSocketEventTovoid = dart.constFn(dart_rti.findType("~(io|RawSocketEvent)")))(),
    dynamicAndStackTraceNTovoid$1: () => (T$3.dynamicAndStackTraceNTovoid$1 = dart.constFn(dart_rti.findType("~(@[core|StackTrace?])")))(),
    __Tovoid$3: () => (T$3.__Tovoid$3 = dart.constFn(dart_rti.findType("~({requestClientCertificate:core|bool,requireClientCertificate:core|bool,useSessionCache:core|bool})")))(),
    intToListNOfint: () => (T$3.intToListNOfint = dart.constFn(dart_rti.findType("core|List<core|int>?(core|int)")))(),
    VoidToFutureOf_FilterStatus: () => (T$3.VoidToFutureOf_FilterStatus = dart.constFn(dart_rti.findType("async|Future<io|_FilterStatus>()")))(),
    CompleterOf_RawSecureSocket: () => (T$3.CompleterOf_RawSecureSocket = dart.constFn(dart_rti.findType("async|Completer<io|_RawSecureSocket>")))(),
    StreamControllerOfRawSocketEvent: () => (T$3.StreamControllerOfRawSocketEvent = dart.constFn(dart_rti.findType("async|StreamController<io|RawSocketEvent>")))(),
    SecurityContext: () => (T$3.SecurityContext = dart.constFn(dart_rti.findType("io|SecurityContext")))(),
    X509CertificateToNbool: () => (T$3.X509CertificateToNbool = dart.constFn(dart_rti.findType("core|bool(io|X509Certificate)?")))(),
    ReceivePortN: () => (T$3.ReceivePortN = dart.constFn(dart_rti.findType("isolate|ReceivePort?")))(),
    CompleterOfRawSecureSocket: () => (T$3.CompleterOfRawSecureSocket = dart.constFn(dart_rti.findType("async|Completer<io|RawSecureSocket>")))(),
    _SecureFilterN: () => (T$3._SecureFilterN = dart.constFn(dart_rti.findType("io|_SecureFilter?")))(),
    intNToUint8ListN$1: () => (T$3.intNToUint8ListN$1 = dart.constFn(dart_rti.findType("typed_data|Uint8List?(core|int?)")))(),
    ListOfintAndintAndintToint: () => (T$3.ListOfintAndintAndintToint = dart.constFn(dart_rti.findType("core|int(core|List<core|int>,core|int,core|int)")))(),
    FnToint: () => (T$3.FnToint = dart.constFn(dart_rti.findType("core|int(core|List<core|int>?(core|int))")))(),
    RawSocketTobool: () => (T$3.RawSocketTobool = dart.constFn(dart_rti.findType("core|bool(io|RawSocket)")))(),
    VoidTo_SecureFilter: () => (T$3.VoidTo_SecureFilter = dart.constFn(dart_rti.findType("io|_SecureFilter()")))(),
    intToTlsProtocolVersion: () => (T$3.intToTlsProtocolVersion = dart.constFn(dart_rti.findType("io|TlsProtocolVersion(core|int)")))(),
    TlsProtocolVersion: () => (T$3.TlsProtocolVersion = dart.constFn(dart_rti.findType("io|TlsProtocolVersion")))(),
    ListOfintAndStringTovoid: () => (T$3.ListOfintAndStringTovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>,core|String)")))(),
    __ToSecurityContext: () => (T$3.__ToSecurityContext = dart.constFn(dart_rti.findType("io|SecurityContext({withTrustedRoots:core|bool})")))(),
    ListNOfStringToUint8List: () => (T$3.ListNOfStringToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|List<core|String>?)")))(),
    ListOfStringToUint8List: () => (T$3.ListOfStringToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|List<core|String>)")))(),
    intToInternetAddressType: () => (T$3.intToInternetAddressType = dart.constFn(dart_rti.findType("io|InternetAddressType(core|int)")))(),
    InternetAddressType: () => (T$3.InternetAddressType = dart.constFn(dart_rti.findType("io|InternetAddressType")))(),
    String__ToInternetAddress: () => (T$3.String__ToInternetAddress = dart.constFn(dart_rti.findType("io|InternetAddress(core|String{type:io|InternetAddressType?})")))(),
    Uint8List__ToInternetAddress: () => (T$3.Uint8List__ToInternetAddress = dart.constFn(dart_rti.findType("io|InternetAddress(typed_data|Uint8List{type:io|InternetAddressType?})")))(),
    String__ToFutureOfListOfInternetAddress: () => (T$3.String__ToFutureOfListOfInternetAddress = dart.constFn(dart_rti.findType("async|Future<core|List<io|InternetAddress>>(core|String{type:io|InternetAddressType})")))(),
    InternetAddressAndStringToInternetAddress: () => (T$3.InternetAddressAndStringToInternetAddress = dart.constFn(dart_rti.findType("io|InternetAddress(io|InternetAddress,core|String)")))(),
    StringToInternetAddressN: () => (T$3.StringToInternetAddressN = dart.constFn(dart_rti.findType("io|InternetAddress?(core|String)")))(),
    __ToFutureOfListOfNetworkInterface: () => (T$3.__ToFutureOfListOfNetworkInterface = dart.constFn(dart_rti.findType("async|Future<core|List<io|NetworkInterface>>({includeLinkLocal:core|bool,includeLoopback:core|bool,type:io|InternetAddressType})")))(),
    dynamicAndint__ToFutureOfRawServerSocket: () => (T$3.dynamicAndint__ToFutureOfRawServerSocket = dart.constFn(dart_rti.findType("async|Future<io|RawServerSocket>(@,core|int{backlog:core|int,shared:core|bool,v6Only:core|bool})")))(),
    SocketDirection: () => (T$3.SocketDirection = dart.constFn(dart_rti.findType("io|SocketDirection")))(),
    SocketOption: () => (T$3.SocketOption = dart.constFn(dart_rti.findType("io|SocketOption")))(),
    ListOf_RawSocketOptions: () => (T$3.ListOf_RawSocketOptions = dart.constFn(dart_rti.findType("core|List<io|_RawSocketOptions>")))(),
    _RawSocketOptions: () => (T$3._RawSocketOptions = dart.constFn(dart_rti.findType("io|_RawSocketOptions")))(),
    _RawSocketOptionsL: () => (T$3._RawSocketOptionsL = dart.constFn(dart_rti.findType("io|_RawSocketOptions*")))(),
    intAndintAndintToRawSocketOption: () => (T$3.intAndintAndintToRawSocketOption = dart.constFn(dart_rti.findType("io|RawSocketOption(core|int,core|int,core|int)")))(),
    intAndintAndboolToRawSocketOption: () => (T$3.intAndintAndboolToRawSocketOption = dart.constFn(dart_rti.findType("io|RawSocketOption(core|int,core|int,core|bool)")))(),
    FutureOfTAndFnToConnectionTaskOfT: () => (T$3.FutureOfTAndFnToConnectionTaskOfT = dart.constFn(dart_rti.findType("io|ConnectionTask<0^>(async|Future<0^>,~())<io|Socket>")))(),
    dynamicAndint__ToFutureOfRawSocket: () => (T$3.dynamicAndint__ToFutureOfRawSocket = dart.constFn(dart_rti.findType("async|Future<io|RawSocket>(@,core|int{sourceAddress:@,sourcePort:core|int,timeout:core|Duration?})")))(),
    dynamicAndint__ToFutureOfConnectionTaskOfRawSocket: () => (T$3.dynamicAndint__ToFutureOfConnectionTaskOfRawSocket = dart.constFn(dart_rti.findType("async|Future<io|ConnectionTask<io|RawSocket>>(@,core|int{sourceAddress:@,sourcePort:core|int})")))(),
    RandomAccessFileToResourceHandle: () => (T$3.RandomAccessFileToResourceHandle = dart.constFn(dart_rti.findType("io|ResourceHandle(io|RandomAccessFile)")))(),
    SocketToResourceHandle: () => (T$3.SocketToResourceHandle = dart.constFn(dart_rti.findType("io|ResourceHandle(io|Socket)")))(),
    RawSocketToResourceHandle: () => (T$3.RawSocketToResourceHandle = dart.constFn(dart_rti.findType("io|ResourceHandle(io|RawSocket)")))(),
    RawDatagramSocketToResourceHandle: () => (T$3.RawDatagramSocketToResourceHandle = dart.constFn(dart_rti.findType("io|ResourceHandle(io|RawDatagramSocket)")))(),
    StdinToResourceHandle: () => (T$3.StdinToResourceHandle = dart.constFn(dart_rti.findType("io|ResourceHandle(io|Stdin)")))(),
    StdoutToResourceHandle: () => (T$3.StdoutToResourceHandle = dart.constFn(dart_rti.findType("io|ResourceHandle(io|Stdout)")))(),
    ReadPipeToResourceHandle: () => (T$3.ReadPipeToResourceHandle = dart.constFn(dart_rti.findType("io|ResourceHandle(io|ReadPipe)")))(),
    WritePipeToResourceHandle: () => (T$3.WritePipeToResourceHandle = dart.constFn(dart_rti.findType("io|ResourceHandle(io|WritePipe)")))(),
    ListOfResourceHandleToSocketControlMessage: () => (T$3.ListOfResourceHandleToSocketControlMessage = dart.constFn(dart_rti.findType("io|SocketControlMessage(core|List<io|ResourceHandle>)")))(),
    ListOfSocketControlMessage: () => (T$3.ListOfSocketControlMessage = dart.constFn(dart_rti.findType("core|List<io|SocketControlMessage>")))(),
    RawDatagramSocket: () => (T$3.RawDatagramSocket = dart.constFn(dart_rti.findType("io|RawDatagramSocket")))(),
    dynamicAndint__ToFutureOfRawDatagramSocket: () => (T$3.dynamicAndint__ToFutureOfRawDatagramSocket = dart.constFn(dart_rti.findType("async|Future<io|RawDatagramSocket>(@,core|int{reuseAddress:core|bool,reusePort:core|bool,ttl:core|int})")))(),
    NetworkInterfaceN: () => (T$3.NetworkInterfaceN = dart.constFn(dart_rti.findType("io|NetworkInterface?")))(),
    InternetAddressN: () => (T$3.InternetAddressN = dart.constFn(dart_rti.findType("io|InternetAddress?")))(),
    _StdStream: () => (T$3._StdStream = dart.constFn(dart_rti.findType("io|_StdStream")))(),
    Fn__ToStreamSubscriptionOfListOfint: () => (T$3.Fn__ToStreamSubscriptionOfListOfint = dart.constFn(dart_rti.findType("async|StreamSubscription<core|List<core|int>>(~(core|List<core|int>)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))(),
    FileSystemException: () => (T$3.FileSystemException = dart.constFn(dart_rti.findType("io|FileSystemException")))(),
    __ToStringN: () => (T$3.__ToStringN = dart.constFn(dart_rti.findType("core|String?({encoding:convert|Encoding,retainNewlines:core|bool})")))(),
    IOSink: () => (T$3.IOSink = dart.constFn(dart_rti.findType("io|IOSink")))(),
    IOSinkN: () => (T$3.IOSinkN = dart.constFn(dart_rti.findType("io|IOSink?")))(),
    dynamicTovoid$1: () => (T$3.dynamicTovoid$1 = dart.constFn(dart_rti.findType("~([@])")))(),
    StdioType: () => (T$3.StdioType = dart.constFn(dart_rti.findType("io|StdioType")))(),
    intToStdin: () => (T$3.intToStdin = dart.constFn(dart_rti.findType("io|Stdin(core|int)")))(),
    SocketToint: () => (T$3.SocketToint = dart.constFn(dart_rti.findType("core|int(io|Socket)")))(),
    SystemEncoding: () => (T$3.SystemEncoding = dart.constFn(dart_rti.findType("io|SystemEncoding")))(),
    ConverterOfString$ListOfint: () => (T$3.ConverterOfString$ListOfint = dart.constFn(dart_rti.findType("convert|Converter<core|String,core|List<core|int>>")))(),
    ConverterOfListOfint$String: () => (T$3.ConverterOfListOfint$String = dart.constFn(dart_rti.findType("convert|Converter<core|List<core|int>,core|String>")))(),
    _WindowsCodePageEncoder: () => (T$3._WindowsCodePageEncoder = dart.constFn(dart_rti.findType("io|_WindowsCodePageEncoder")))(),
    StringToListOfint: () => (T$3.StringToListOfint = dart.constFn(dart_rti.findType("core|List<core|int>(core|String)")))(),
    _WindowsCodePageDecoder: () => (T$3._WindowsCodePageDecoder = dart.constFn(dart_rti.findType("io|_WindowsCodePageDecoder")))(),
    dynamicAndintToRawSynchronousSocket: () => (T$3.dynamicAndintToRawSynchronousSocket = dart.constFn(dart_rti.findType("io|RawSynchronousSocket(@,core|int)")))(),
    Socket: () => (T$3.Socket = dart.constFn(dart_rti.findType("io|Socket")))(),
    _FileStreamConsumer: () => (T$3._FileStreamConsumer = dart.constFn(dart_rti.findType("io|_FileStreamConsumer")))(),
    _ReceivePort: () => (T$3._ReceivePort = dart.constFn(dart_rti.findType("isolate|_ReceivePort")))(),
    SendPort: () => (T$3.SendPort = dart.constFn(dart_rti.findType("isolate|SendPort")))(),
    Fn__ToStreamSubscription: () => (T$3.Fn__ToStreamSubscription = dart.constFn(dart_rti.findType("async|StreamSubscription<@>(~(@)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))(),
    _RemoteRunnerOfObjectNTovoid: () => (T$3._RemoteRunnerOfObjectNTovoid = dart.constFn(dart_rti.findType("~(isolate|_RemoteRunner<core|Object?>)")))(),
    IsolateToNull: () => (T$3.IsolateToNull = dart.constFn(dart_rti.findType("core|Null(isolate|Isolate)")))(),
    Fn__ToFutureOfR$1: () => (T$3.Fn__ToFutureOfR$1 = dart.constFn(dart_rti.findType("async|Future<0^>(0^/(){debugName:core|String?})<core|Object?>")))(),
    FutureOfUriN: () => (T$3.FutureOfUriN = dart.constFn(dart_rti.findType("async|Future<core|Uri?>")))(),
    UriToFutureOfUriN: () => (T$3.UriToFutureOfUriN = dart.constFn(dart_rti.findType("async|Future<core|Uri?>(core|Uri)")))(),
    UriToUriN: () => (T$3.UriToUriN = dart.constFn(dart_rti.findType("core|Uri?(core|Uri)")))(),
    FnAndT__ToFutureOfIsolate: () => (T$3.FnAndT__ToFutureOfIsolate = dart.constFn(dart_rti.findType("async|Future<isolate|Isolate>(~(0^),0^{debugName:core|String?,errorsAreFatal:core|bool,onError:isolate|SendPort?,onExit:isolate|SendPort?,paused:core|bool})<core|Object?>")))(),
    UriAndListOfStringAnddynamic__ToFutureOfIsolate: () => (T$3.UriAndListOfStringAnddynamic__ToFutureOfIsolate = dart.constFn(dart_rti.findType("async|Future<isolate|Isolate>(core|Uri,core|List<core|String>,@{automaticPackageResolution:core|bool,checked:core|bool?,debugName:core|String?,environment:core|Map<core|String,core|String>?,errorsAreFatal:core|bool,onError:isolate|SendPort?,onExit:isolate|SendPort?,packageConfig:core|Uri?,packageRoot:core|Uri?,paused:core|bool})")))(),
    CapabilityNToCapability: () => (T$3.CapabilityNToCapability = dart.constFn(dart_rti.findType("isolate|Capability([isolate|Capability?])")))(),
    CapabilityTovoid: () => (T$3.CapabilityTovoid = dart.constFn(dart_rti.findType("~(isolate|Capability)")))(),
    SendPort__Tovoid: () => (T$3.SendPort__Tovoid = dart.constFn(dart_rti.findType("~(isolate|SendPort{response:core|Object?})")))(),
    SendPortTovoid: () => (T$3.SendPortTovoid = dart.constFn(dart_rti.findType("~(isolate|SendPort)")))(),
    __Tovoid$4: () => (T$3.__Tovoid$4 = dart.constFn(dart_rti.findType("~({priority:core|int})")))(),
    SendPort__Tovoid$1: () => (T$3.SendPort__Tovoid$1 = dart.constFn(dart_rti.findType("~(isolate|SendPort{priority:core|int,response:core|Object?})")))(),
    Stream: () => (T$3.Stream = dart.constFn(dart_rti.findType("async|Stream<@>")))(),
    SendPortNAndObjectNToNever: () => (T$3.SendPortNAndObjectNToNever = dart.constFn(dart_rti.findType("0&([isolate|SendPort?,core|Object?])")))(),
    CapabilityN: () => (T$3.CapabilityN = dart.constFn(dart_rti.findType("isolate|Capability?")))(),
    StringToReceivePort: () => (T$3.StringToReceivePort = dart.constFn(dart_rti.findType("isolate|ReceivePort([core|String])")))(),
    RawReceivePortToReceivePort: () => (T$3.RawReceivePortToReceivePort = dart.constFn(dart_rti.findType("isolate|ReceivePort(isolate|RawReceivePort)")))(),
    FunctionNAndStringToRawReceivePort: () => (T$3.FunctionNAndStringToRawReceivePort = dart.constFn(dart_rti.findType("isolate|RawReceivePort([core|Function?,core|String])")))(),
    ListOfTypedDataToTransferableTypedData: () => (T$3.ListOfTypedDataToTransferableTypedData = dart.constFn(dart_rti.findType("isolate|TransferableTypedData(core|List<typed_data|TypedData>)")))(),
    ObjectNToListOfObjectN: () => (T$3.ObjectNToListOfObjectN = dart.constFn(dart_rti.findType("core|List<core|Object?>(core|Object?)")))(),
    ObjectNAndObjectNToListOfObjectN: () => (T$3.ObjectNAndObjectNToListOfObjectN = dart.constFn(dart_rti.findType("core|List<core|Object?>(core|Object?,core|Object?)")))(),
    VoidToCapability: () => (T$3.VoidToCapability = dart.constFn(dart_rti.findType("isolate|Capability()")))(),
    JsObject: () => (T$3.JsObject = dart.constFn(dart_rti.findType("js|JsObject")))(),
    JsFunctionAndListNToJsObject: () => (T$3.JsFunctionAndListNToJsObject = dart.constFn(dart_rti.findType("js|JsObject(js|JsFunction[core|List<@>?])")))(),
    ObjectToJsObject: () => (T$3.ObjectToJsObject = dart.constFn(dart_rti.findType("js|JsObject(core|Object)")))(),
    ObjectAndObjectNTovoid: () => (T$3.ObjectAndObjectNTovoid = dart.constFn(dart_rti.findType("~(core|Object,core|Object?)")))(),
    JsFunctionTobool: () => (T$3.JsFunctionTobool = dart.constFn(dart_rti.findType("core|bool(js|JsFunction)")))(),
    ObjectAndListNTodynamic: () => (T$3.ObjectAndListNTodynamic = dart.constFn(dart_rti.findType("@(core|Object[core|List<@>?])")))(),
    FunctionToJsFunction: () => (T$3.FunctionToJsFunction = dart.constFn(dart_rti.findType("js|JsFunction(core|Function)")))(),
    List__Todynamic: () => (T$3.List__Todynamic = dart.constFn(dart_rti.findType("@(core|List<@>{thisArg:@})")))(),
    intAndintAndintTodynamic: () => (T$3.intAndintAndintTodynamic = dart.constFn(dart_rti.findType("@(core|int,core|int,core|int)")))(),
    VoidToJsArrayOfE: () => (T$3.VoidToJsArrayOfE = dart.constFn(dart_rti.findType("js|JsArray<0^>()<core|Object?>")))(),
    IterableOfEToJsArrayOfE: () => (T$3.IterableOfEToJsArrayOfE = dart.constFn(dart_rti.findType("js|JsArray<0^>(core|Iterable<0^>)<core|Object?>")))(),
    ObjectAnddynamicTovoid: () => (T$3.ObjectAnddynamicTovoid = dart.constFn(dart_rti.findType("~(core|Object,@)")))(),
    ObjectToObject: () => (T$3.ObjectToObject = dart.constFn(dart_rti.findType("core|Object(core|Object)")))(),
    ObjectTo_DartObject: () => (T$3.ObjectTo_DartObject = dart.constFn(dart_rti.findType("js|_DartObject(core|Object)")))(),
    _DartObject: () => (T$3._DartObject = dart.constFn(dart_rti.findType("js|_DartObject")))(),
    JSObject: () => (T$3.JSObject = dart.constFn(dart_rti.findType("_interceptors|JSObject")))(),
    JavaScriptFunctionTobool: () => (T$3.JavaScriptFunctionTobool = dart.constFn(dart_rti.findType("core|bool(_interceptors|JavaScriptFunction)")))(),
    JSObjectN: () => (T$3.JSObjectN = dart.constFn(dart_rti.findType("_interceptors|JSObject?")))(),
    VoidTobool$1: () => (T$3.VoidTobool$1 = dart.constFn(dart_rti.findType("core|bool()<core|Object?>")))(),
    ObjectAndStackTraceToJSObject: () => (T$3.ObjectAndStackTraceToJSObject = dart.constFn(dart_rti.findType("_interceptors|JSObject(core|Object,core|StackTrace)")))(),
    JavaScriptFunctionAndJavaScriptFunctionToNull: () => (T$3.JavaScriptFunctionAndJavaScriptFunctionToNull = dart.constFn(dart_rti.findType("core|Null(_interceptors|JavaScriptFunction,_interceptors|JavaScriptFunction)")))(),
    voidToObjectN: () => (T$3.voidToObjectN = dart.constFn(dart_rti.findType("core|Object?(~)")))(),
    NativeByteData: () => (T$3.NativeByteData = dart.constFn(dart_rti.findType("_native_typed_data|NativeByteData")))(),
    NativeInt8List: () => (T$3.NativeInt8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt8List")))(),
    NativeUint8List: () => (T$3.NativeUint8List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8List")))(),
    NativeUint8ClampedList: () => (T$3.NativeUint8ClampedList = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8ClampedList")))(),
    NativeInt16List: () => (T$3.NativeInt16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeInt16List")))(),
    NativeUint16List: () => (T$3.NativeUint16List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint16List")))(),
    NativeUint32List: () => (T$3.NativeUint32List = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint32List")))(),
    JSArrayOfObjectN: () => (T$3.JSArrayOfObjectN = dart.constFn(dart_rti.findType("_interceptors|JSArray<core|Object?>")))(),
    ObjectToR: () => (T$3.ObjectToR = dart.constFn(dart_rti.findType("0^(core|Object)<core|Object?>")))(),
    ObjectAndObjectNAndObjectN__ToObjectN: () => (T$3.ObjectAndObjectNAndObjectN__ToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Object[core|Object?,core|Object?,core|Object?,core|Object?])")))(),
    ObjectAndObjectNAndObjectN__ToR: () => (T$3.ObjectAndObjectNAndObjectN__ToR = dart.constFn(dart_rti.findType("0^(core|Object[core|Object?,core|Object?,core|Object?,core|Object?])<core|Object?>")))(),
    ObjectAndListNOfObjectNToObjectN: () => (T$3.ObjectAndListNOfObjectNToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Object[core|List<core|Object?>?])")))(),
    ObjectAndListNOfObjectNToR: () => (T$3.ObjectAndListNOfObjectNToR = dart.constFn(dart_rti.findType("0^(core|Object[core|List<core|Object?>?])<core|Object?>")))(),
    ObjectNAndObjectNAndObjectN__ToJSObject: () => (T$3.ObjectNAndObjectNAndObjectN__ToJSObject = dart.constFn(dart_rti.findType("_interceptors|JSObject([core|Object?,core|Object?,core|Object?,core|Object?])")))(),
    ObjectNAndObjectNAndObjectN__ToR: () => (T$3.ObjectNAndObjectNAndObjectN__ToR = dart.constFn(dart_rti.findType("0^([core|Object?,core|Object?,core|Object?,core|Object?])<core|Object?>")))(),
    ListNOfObjectNToJSObject: () => (T$3.ListNOfObjectNToJSObject = dart.constFn(dart_rti.findType("_interceptors|JSObject([core|List<core|Object?>?])")))(),
    ListNOfObjectNToR: () => (T$3.ListNOfObjectNToR = dart.constFn(dart_rti.findType("0^([core|List<core|Object?>?])<_interceptors|JSObject>")))(),
    PointOfnum: () => (T$3.PointOfnum = dart.constFn(dart_rti.findType("math|Point<core|num>")))(),
    intNToRandom: () => (T$3.intNToRandom = dart.constFn(dart_rti.findType("math|Random([core|int?])")))(),
    VoidToRandom: () => (T$3.VoidToRandom = dart.constFn(dart_rti.findType("math|Random()")))(),
    Random: () => (T$3.Random = dart.constFn(dart_rti.findType("math|Random")))(),
    RectangleOfnum: () => (T$3.RectangleOfnum = dart.constFn(dart_rti.findType("math|Rectangle<core|num>")))(),
    RectangleOfnumTobool: () => (T$3.RectangleOfnumTobool = dart.constFn(dart_rti.findType("core|bool(math|Rectangle<core|num>)")))(),
    PointOfnumTobool: () => (T$3.PointOfnumTobool = dart.constFn(dart_rti.findType("core|bool(math|Point<core|num>)")))(),
    PointOfTAndPointOfTToRectangleOfT: () => (T$3.PointOfTAndPointOfTToRectangleOfT = dart.constFn(dart_rti.findType("math|Rectangle<0^>(math|Point<0^>,math|Point<0^>)<core|num>")))(),
    PointOfTAndPointOfTToMutableRectangleOfT: () => (T$3.PointOfTAndPointOfTToMutableRectangleOfT = dart.constFn(dart_rti.findType("math|MutableRectangle<0^>(math|Point<0^>,math|Point<0^>)<core|num>")))(),
    Endian: () => (T$3.Endian = dart.constFn(dart_rti.findType("typed_data|Endian")))(),
    intToByteData: () => (T$3.intToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData(core|int)")))(),
    ByteBufferAndintAndintNToByteData: () => (T$3.ByteBufferAndintAndintNToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToByteData: () => (T$3.TypedDataAndintAndintNToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfintToInt8List: () => (T$3.ListOfintToInt8List = dart.constFn(dart_rti.findType("typed_data|Int8List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToInt8List: () => (T$3.ByteBufferAndintAndintNToInt8List = dart.constFn(dart_rti.findType("typed_data|Int8List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToInt8List: () => (T$3.TypedDataAndintAndintNToInt8List = dart.constFn(dart_rti.findType("typed_data|Int8List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfintToUint8List: () => (T$3.ListOfintToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToUint8List: () => (T$3.ByteBufferAndintAndintNToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToUint8List: () => (T$3.TypedDataAndintAndintNToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfintToUint8ClampedList: () => (T$3.ListOfintToUint8ClampedList = dart.constFn(dart_rti.findType("typed_data|Uint8ClampedList(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToUint8ClampedList: () => (T$3.ByteBufferAndintAndintNToUint8ClampedList = dart.constFn(dart_rti.findType("typed_data|Uint8ClampedList(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToUint8ClampedList: () => (T$3.TypedDataAndintAndintNToUint8ClampedList = dart.constFn(dart_rti.findType("typed_data|Uint8ClampedList(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfintToInt16List: () => (T$3.ListOfintToInt16List = dart.constFn(dart_rti.findType("typed_data|Int16List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToInt16List: () => (T$3.ByteBufferAndintAndintNToInt16List = dart.constFn(dart_rti.findType("typed_data|Int16List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToInt16List: () => (T$3.TypedDataAndintAndintNToInt16List = dart.constFn(dart_rti.findType("typed_data|Int16List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfintToUint16List: () => (T$3.ListOfintToUint16List = dart.constFn(dart_rti.findType("typed_data|Uint16List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToUint16List: () => (T$3.ByteBufferAndintAndintNToUint16List = dart.constFn(dart_rti.findType("typed_data|Uint16List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToUint16List: () => (T$3.TypedDataAndintAndintNToUint16List = dart.constFn(dart_rti.findType("typed_data|Uint16List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfintToInt32List: () => (T$3.ListOfintToInt32List = dart.constFn(dart_rti.findType("typed_data|Int32List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToInt32List: () => (T$3.ByteBufferAndintAndintNToInt32List = dart.constFn(dart_rti.findType("typed_data|Int32List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToInt32List: () => (T$3.TypedDataAndintAndintNToInt32List = dart.constFn(dart_rti.findType("typed_data|Int32List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfintToUint32List: () => (T$3.ListOfintToUint32List = dart.constFn(dart_rti.findType("typed_data|Uint32List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToUint32List: () => (T$3.ByteBufferAndintAndintNToUint32List = dart.constFn(dart_rti.findType("typed_data|Uint32List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToUint32List: () => (T$3.TypedDataAndintAndintNToUint32List = dart.constFn(dart_rti.findType("typed_data|Uint32List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfintToInt64List: () => (T$3.ListOfintToInt64List = dart.constFn(dart_rti.findType("typed_data|Int64List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToInt64List: () => (T$3.ByteBufferAndintAndintNToInt64List = dart.constFn(dart_rti.findType("typed_data|Int64List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToInt64List: () => (T$3.TypedDataAndintAndintNToInt64List = dart.constFn(dart_rti.findType("typed_data|Int64List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfintToUint64List: () => (T$3.ListOfintToUint64List = dart.constFn(dart_rti.findType("typed_data|Uint64List(core|List<core|int>)")))(),
    ByteBufferAndintAndintNToUint64List: () => (T$3.ByteBufferAndintAndintNToUint64List = dart.constFn(dart_rti.findType("typed_data|Uint64List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToUint64List: () => (T$3.TypedDataAndintAndintNToUint64List = dart.constFn(dart_rti.findType("typed_data|Uint64List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfdoubleToFloat32List: () => (T$3.ListOfdoubleToFloat32List = dart.constFn(dart_rti.findType("typed_data|Float32List(core|List<core|double>)")))(),
    ByteBufferAndintAndintNToFloat32List: () => (T$3.ByteBufferAndintAndintNToFloat32List = dart.constFn(dart_rti.findType("typed_data|Float32List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToFloat32List: () => (T$3.TypedDataAndintAndintNToFloat32List = dart.constFn(dart_rti.findType("typed_data|Float32List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfdoubleToFloat64List: () => (T$3.ListOfdoubleToFloat64List = dart.constFn(dart_rti.findType("typed_data|Float64List(core|List<core|double>)")))(),
    ByteBufferAndintAndintNToFloat64List: () => (T$3.ByteBufferAndintAndintNToFloat64List = dart.constFn(dart_rti.findType("typed_data|Float64List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToFloat64List: () => (T$3.TypedDataAndintAndintNToFloat64List = dart.constFn(dart_rti.findType("typed_data|Float64List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfFloat32x4ToFloat32x4List: () => (T$3.ListOfFloat32x4ToFloat32x4List = dart.constFn(dart_rti.findType("typed_data|Float32x4List(core|List<typed_data|Float32x4>)")))(),
    ByteBufferAndintAndintNToFloat32x4List: () => (T$3.ByteBufferAndintAndintNToFloat32x4List = dart.constFn(dart_rti.findType("typed_data|Float32x4List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToFloat32x4List: () => (T$3.TypedDataAndintAndintNToFloat32x4List = dart.constFn(dart_rti.findType("typed_data|Float32x4List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfInt32x4ToInt32x4List: () => (T$3.ListOfInt32x4ToInt32x4List = dart.constFn(dart_rti.findType("typed_data|Int32x4List(core|List<typed_data|Int32x4>)")))(),
    ByteBufferAndintAndintNToInt32x4List: () => (T$3.ByteBufferAndintAndintNToInt32x4List = dart.constFn(dart_rti.findType("typed_data|Int32x4List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToInt32x4List: () => (T$3.TypedDataAndintAndintNToInt32x4List = dart.constFn(dart_rti.findType("typed_data|Int32x4List(typed_data|TypedData[core|int,core|int?])")))(),
    ListOfFloat64x2ToFloat64x2List: () => (T$3.ListOfFloat64x2ToFloat64x2List = dart.constFn(dart_rti.findType("typed_data|Float64x2List(core|List<typed_data|Float64x2>)")))(),
    ByteBufferAndintAndintNToFloat64x2List: () => (T$3.ByteBufferAndintAndintNToFloat64x2List = dart.constFn(dart_rti.findType("typed_data|Float64x2List(typed_data|ByteBuffer[core|int,core|int?])")))(),
    TypedDataAndintAndintNToFloat64x2List: () => (T$3.TypedDataAndintAndintNToFloat64x2List = dart.constFn(dart_rti.findType("typed_data|Float64x2List(typed_data|TypedData[core|int,core|int?])")))(),
    doubleAnddoubleAnddouble__ToFloat32x4: () => (T$3.doubleAnddoubleAnddouble__ToFloat32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4(core|double,core|double,core|double,core|double)")))(),
    Int32x4ToFloat32x4: () => (T$3.Int32x4ToFloat32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4(typed_data|Int32x4)")))(),
    Float64x2ToFloat32x4: () => (T$3.Float64x2ToFloat32x4 = dart.constFn(dart_rti.findType("typed_data|Float32x4(typed_data|Float64x2)")))(),
    intAndintAndint__ToInt32x4: () => (T$3.intAndintAndint__ToInt32x4 = dart.constFn(dart_rti.findType("typed_data|Int32x4(core|int,core|int,core|int,core|int)")))(),
    boolAndboolAndbool__ToInt32x4: () => (T$3.boolAndboolAndbool__ToInt32x4 = dart.constFn(dart_rti.findType("typed_data|Int32x4(core|bool,core|bool,core|bool,core|bool)")))(),
    doubleAnddoubleToFloat64x2: () => (T$3.doubleAnddoubleToFloat64x2 = dart.constFn(dart_rti.findType("typed_data|Float64x2(core|double,core|double)")))(),
    Float32x4ToFloat64x2: () => (T$3.Float32x4ToFloat64x2 = dart.constFn(dart_rti.findType("typed_data|Float64x2(typed_data|Float32x4)")))(),
    dynamicToKeyRange: () => (T$3.dynamicToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange(@)")))(),
    dynamicAndboolToKeyRange: () => (T$3.dynamicAndboolToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange(@[core|bool])")))(),
    dynamicAnddynamicAndbool__ToKeyRange: () => (T$3.dynamicAnddynamicAndbool__ToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange(@,@[core|bool,core|bool])")))(),
    dynamicAnddynamicToKeyRange: () => (T$3.dynamicAnddynamicToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange(@,@)")))(),
    dynamicAnddynamicAnddynamicToKeyRange: () => (T$3.dynamicAnddynamicAnddynamicToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange(@,@,@)")))(),
    dynamicAnddynamicAnddynamic__ToKeyRange: () => (T$3.dynamicAnddynamicAnddynamic__ToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange(@,@,@,@,@)")))(),
    VoidToCursor: () => (T$3.VoidToCursor = dart.constFn(dart_rti.findType("indexed_db|Cursor()")))(),
    ObjectAndObjectTovoid: () => (T$3.ObjectAndObjectTovoid = dart.constFn(dart_rti.findType("~(core|Object,core|Object)")))(),
    VoidToRequest: () => (T$3.VoidToRequest = dart.constFn(dart_rti.findType("indexed_db|Request()")))(),
    dynamicToRequest: () => (T$3.dynamicToRequest = dart.constFn(dart_rti.findType("indexed_db|Request(@)")))(),
    VoidToCursorWithValue: () => (T$3.VoidToCursorWithValue = dart.constFn(dart_rti.findType("indexed_db|CursorWithValue()")))(),
    Events: () => (T$3.Events = dart.constFn(dart_rti.findType("html|Events")))(),
    StringAndFnAndboolNTovoid: () => (T$3.StringAndFnAndboolNTovoid = dart.constFn(dart_rti.findType("~(core|String,@(html|Event)?[core|bool?])")))(),
    VoidToEventTarget: () => (T$3.VoidToEventTarget = dart.constFn(dart_rti.findType("html|EventTarget()")))(),
    EventTobool: () => (T$3.EventTobool = dart.constFn(dart_rti.findType("core|bool(html|Event)")))(),
    String__ToObjectStore: () => (T$3.String__ToObjectStore = dart.constFn(dart_rti.findType("indexed_db|ObjectStore(core|String{autoIncrement:core|bool?,keyPath:@})")))(),
    dynamicAndStringToTransaction: () => (T$3.dynamicAndStringToTransaction = dart.constFn(dart_rti.findType("indexed_db|Transaction(@,core|String)")))(),
    StringAndStringToTransaction: () => (T$3.StringAndStringToTransaction = dart.constFn(dart_rti.findType("indexed_db|Transaction(core|String,core|String)")))(),
    ListOfStringAndStringToTransaction: () => (T$3.ListOfStringAndStringToTransaction = dart.constFn(dart_rti.findType("indexed_db|Transaction(core|List<core|String>,core|String)")))(),
    DomStringListAndStringToTransaction: () => (T$3.DomStringListAndStringToTransaction = dart.constFn(dart_rti.findType("indexed_db|Transaction(html|DomStringList,core|String)")))(),
    dynamicAnddynamicToTransaction: () => (T$3.dynamicAnddynamicToTransaction = dart.constFn(dart_rti.findType("indexed_db|Transaction(@,@)")))(),
    VoidToDatabase: () => (T$3.VoidToDatabase = dart.constFn(dart_rti.findType("indexed_db|Database()")))(),
    StringAndMapNToObjectStore: () => (T$3.StringAndMapNToObjectStore = dart.constFn(dart_rti.findType("indexed_db|ObjectStore(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToObjectStore: () => (T$3.dynamicAnddynamicToObjectStore = dart.constFn(dart_rti.findType("indexed_db|ObjectStore(@,@)")))(),
    dynamicToObjectStore: () => (T$3.dynamicToObjectStore = dart.constFn(dart_rti.findType("indexed_db|ObjectStore(@)")))(),
    StreamOfEvent: () => (T$3.StreamOfEvent = dart.constFn(dart_rti.findType("async|Stream<html|Event>")))(),
    StreamOfVersionChangeEvent: () => (T$3.StreamOfVersionChangeEvent = dart.constFn(dart_rti.findType("async|Stream<indexed_db|VersionChangeEvent>")))(),
    EventStreamProviderOfEvent: () => (T$3.EventStreamProviderOfEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|Event>")))(),
    EventStreamProviderOfVersionChangeEvent: () => (T$3.EventStreamProviderOfVersionChangeEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<indexed_db|VersionChangeEvent>")))(),
    EventL: () => (T$3.EventL = dart.constFn(dart_rti.findType("html|Event*")))(),
    EventStreamProviderOfEventL: () => (T$3.EventStreamProviderOfEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|Event*>")))(),
    VersionChangeEventL: () => (T$3.VersionChangeEventL = dart.constFn(dart_rti.findType("indexed_db|VersionChangeEvent*")))(),
    EventStreamProviderOfVersionChangeEventL: () => (T$3.EventStreamProviderOfVersionChangeEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<indexed_db|VersionChangeEvent*>")))(),
    Database: () => (T$3.Database = dart.constFn(dart_rti.findType("indexed_db|Database")))(),
    IdbFactory: () => (T$3.IdbFactory = dart.constFn(dart_rti.findType("indexed_db|IdbFactory")))(),
    EventTovoid: () => (T$3.EventTovoid = dart.constFn(dart_rti.findType("~(html|Event)")))(),
    String__ToFutureOfDatabase: () => (T$3.String__ToFutureOfDatabase = dart.constFn(dart_rti.findType("async|Future<indexed_db|Database>(core|String{onBlocked:~(html|Event)?,onUpgradeNeeded:~(indexed_db|VersionChangeEvent)?,version:core|int?})")))(),
    String__ToFutureOfIdbFactory: () => (T$3.String__ToFutureOfIdbFactory = dart.constFn(dart_rti.findType("async|Future<indexed_db|IdbFactory>(core|String{onBlocked:~(html|Event)?})")))(),
    VoidToIdbFactory: () => (T$3.VoidToIdbFactory = dart.constFn(dart_rti.findType("indexed_db|IdbFactory()")))(),
    ObjectAndObjectToint: () => (T$3.ObjectAndObjectToint = dart.constFn(dart_rti.findType("core|int(core|Object,core|Object)")))(),
    StringToOpenDBRequest: () => (T$3.StringToOpenDBRequest = dart.constFn(dart_rti.findType("indexed_db|OpenDBRequest(core|String)")))(),
    StringAndintNToOpenDBRequest: () => (T$3.StringAndintNToOpenDBRequest = dart.constFn(dart_rti.findType("indexed_db|OpenDBRequest(core|String[core|int?])")))(),
    CursorWithValue: () => (T$3.CursorWithValue = dart.constFn(dart_rti.findType("indexed_db|CursorWithValue")))(),
    Request: () => (T$3.Request = dart.constFn(dart_rti.findType("indexed_db|Request")))(),
    Cursor: () => (T$3.Cursor = dart.constFn(dart_rti.findType("indexed_db|Cursor")))(),
    dynamicToFutureOfint: () => (T$3.dynamicToFutureOfint = dart.constFn(dart_rti.findType("async|Future<core|int>([@])")))(),
    __ToStreamOfCursorWithValue: () => (T$3.__ToStreamOfCursorWithValue = dart.constFn(dart_rti.findType("async|Stream<indexed_db|CursorWithValue>({autoAdvance:core|bool?,direction:core|String?,key:@,range:indexed_db|KeyRange?})")))(),
    __ToStreamOfCursor: () => (T$3.__ToStreamOfCursor = dart.constFn(dart_rti.findType("async|Stream<indexed_db|Cursor>({autoAdvance:core|bool?,direction:core|String?,key:@,range:indexed_db|KeyRange?})")))(),
    VoidToIndex: () => (T$3.VoidToIndex = dart.constFn(dart_rti.findType("indexed_db|Index()")))(),
    ObjectStoreN: () => (T$3.ObjectStoreN = dart.constFn(dart_rti.findType("indexed_db|ObjectStore?")))(),
    ObjectNToRequest: () => (T$3.ObjectNToRequest = dart.constFn(dart_rti.findType("indexed_db|Request(core|Object?)")))(),
    ObjectToRequest: () => (T$3.ObjectToRequest = dart.constFn(dart_rti.findType("indexed_db|Request(core|Object)")))(),
    ObjectNAndintNToRequest: () => (T$3.ObjectNAndintNToRequest = dart.constFn(dart_rti.findType("indexed_db|Request(core|Object?[core|int?])")))(),
    ObjectNAndStringNToRequest: () => (T$3.ObjectNAndStringNToRequest = dart.constFn(dart_rti.findType("indexed_db|Request(core|Object?[core|String?])")))(),
    VoidToKeyRange: () => (T$3.VoidToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange()")))(),
    ObjectAndObjectAndboolN__ToKeyRange: () => (T$3.ObjectAndObjectAndboolN__ToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange(core|Object,core|Object[core|bool?,core|bool?])")))(),
    ObjectAndboolNToKeyRange: () => (T$3.ObjectAndboolNToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange(core|Object[core|bool?])")))(),
    ObjectToKeyRange: () => (T$3.ObjectToKeyRange = dart.constFn(dart_rti.findType("indexed_db|KeyRange(core|Object)")))(),
    dynamicAnddynamicToFuture: () => (T$3.dynamicAnddynamicToFuture = dart.constFn(dart_rti.findType("async|Future<@>(@[@])")))(),
    StringAnddynamic__ToIndex: () => (T$3.StringAnddynamic__ToIndex = dart.constFn(dart_rti.findType("indexed_db|Index(core|String,@{multiEntry:core|bool?,unique:core|bool?})")))(),
    VoidToObjectStore: () => (T$3.VoidToObjectStore = dart.constFn(dart_rti.findType("indexed_db|ObjectStore()")))(),
    TransactionN: () => (T$3.TransactionN = dart.constFn(dart_rti.findType("indexed_db|Transaction?")))(),
    dynamicAnddynamicToRequest: () => (T$3.dynamicAnddynamicToRequest = dart.constFn(dart_rti.findType("indexed_db|Request(@[@])")))(),
    dynamicAnddynamicToRequest$1: () => (T$3.dynamicAnddynamicToRequest$1 = dart.constFn(dart_rti.findType("indexed_db|Request(@,@)")))(),
    StringAndObjectAndMapNToIndex: () => (T$3.StringAndObjectAndMapNToIndex = dart.constFn(dart_rti.findType("indexed_db|Index(core|String,core|Object[core|Map<@,@>?])")))(),
    dynamicAnddynamicAnddynamicToIndex: () => (T$3.dynamicAnddynamicAnddynamicToIndex = dart.constFn(dart_rti.findType("indexed_db|Index(@,@,@)")))(),
    dynamicAnddynamicToIndex: () => (T$3.dynamicAnddynamicToIndex = dart.constFn(dart_rti.findType("indexed_db|Index(@,@)")))(),
    StringToIndex: () => (T$3.StringToIndex = dart.constFn(dart_rti.findType("indexed_db|Index(core|String)")))(),
    RequestAndboolNToStreamOfT: () => (T$3.RequestAndboolNToStreamOfT = dart.constFn(dart_rti.findType("async|Stream<0^>(indexed_db|Request,core|bool?)<indexed_db|Cursor>")))(),
    VoidToObservation: () => (T$3.VoidToObservation = dart.constFn(dart_rti.findType("indexed_db|Observation()")))(),
    ObserverChangesTovoid: () => (T$3.ObserverChangesTovoid = dart.constFn(dart_rti.findType("~(indexed_db|ObserverChanges)")))(),
    VoidToObserver: () => (T$3.VoidToObserver = dart.constFn(dart_rti.findType("indexed_db|Observer()")))(),
    FnToObserver: () => (T$3.FnToObserver = dart.constFn(dart_rti.findType("indexed_db|Observer(~(indexed_db|ObserverChanges))")))(),
    dynamicToObserver: () => (T$3.dynamicToObserver = dart.constFn(dart_rti.findType("indexed_db|Observer(@)")))(),
    DatabaseAndTransactionAndMapTovoid: () => (T$3.DatabaseAndTransactionAndMapTovoid = dart.constFn(dart_rti.findType("~(indexed_db|Database,indexed_db|Transaction,core|Map<@,@>)")))(),
    DatabaseAndTransactionAnddynamicTovoid: () => (T$3.DatabaseAndTransactionAnddynamicTovoid = dart.constFn(dart_rti.findType("~(indexed_db|Database,indexed_db|Transaction,@)")))(),
    DatabaseTovoid: () => (T$3.DatabaseTovoid = dart.constFn(dart_rti.findType("~(indexed_db|Database)")))(),
    VoidToObserverChanges: () => (T$3.VoidToObserverChanges = dart.constFn(dart_rti.findType("indexed_db|ObserverChanges()")))(),
    DatabaseN: () => (T$3.DatabaseN = dart.constFn(dart_rti.findType("indexed_db|Database?")))(),
    DomExceptionN: () => (T$3.DomExceptionN = dart.constFn(dart_rti.findType("html|DomException?")))(),
    VoidToOpenDBRequest: () => (T$3.VoidToOpenDBRequest = dart.constFn(dart_rti.findType("indexed_db|OpenDBRequest()")))(),
    EventToNull: () => (T$3.EventToNull = dart.constFn(dart_rti.findType("core|Null(html|Event)")))(),
    FutureOfDatabase: () => (T$3.FutureOfDatabase = dart.constFn(dart_rti.findType("async|Future<indexed_db|Database>")))(),
    VoidToTransaction: () => (T$3.VoidToTransaction = dart.constFn(dart_rti.findType("indexed_db|Transaction()")))(),
    StringToObjectStore: () => (T$3.StringToObjectStore = dart.constFn(dart_rti.findType("indexed_db|ObjectStore(core|String)")))(),
    ElementN: () => (T$3.ElementN = dart.constFn(dart_rti.findType("html|Element?")))(),
    EventTarget: () => (T$3.EventTarget = dart.constFn(dart_rti.findType("html|EventTarget")))(),
    String__ToEvent: () => (T$3.String__ToEvent = dart.constFn(dart_rti.findType("html|Event(core|String{canBubble:core|bool,cancelable:core|bool})")))(),
    StringAndString__ToEvent: () => (T$3.StringAndString__ToEvent = dart.constFn(dart_rti.findType("html|Event(core|String,core|String{canBubble:core|bool,cancelable:core|bool})")))(),
    Element: () => (T$3.Element = dart.constFn(dart_rti.findType("html|Element")))(),
    ListOfEventTarget: () => (T$3.ListOfEventTarget = dart.constFn(dart_rti.findType("core|List<html|EventTarget>")))(),
    StringAndMapNToEvent: () => (T$3.StringAndMapNToEvent = dart.constFn(dart_rti.findType("html|Event(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToEvent: () => (T$3.dynamicAnddynamicToEvent = dart.constFn(dart_rti.findType("html|Event(@,@)")))(),
    dynamicToEvent: () => (T$3.dynamicToEvent = dart.constFn(dart_rti.findType("html|Event(@)")))(),
    EventTargetN: () => (T$3.EventTargetN = dart.constFn(dart_rti.findType("html|EventTarget?")))(),
    numN: () => (T$3.numN = dart.constFn(dart_rti.findType("core|num?")))(),
    VoidToListOfEventTarget: () => (T$3.VoidToListOfEventTarget = dart.constFn(dart_rti.findType("core|List<html|EventTarget>()")))(),
    StringAndboolNAndboolNTovoid: () => (T$3.StringAndboolNAndboolNTovoid = dart.constFn(dart_rti.findType("~(core|String[core|bool?,core|bool?])")))(),
    VoidToVersionChangeEvent: () => (T$3.VoidToVersionChangeEvent = dart.constFn(dart_rti.findType("indexed_db|VersionChangeEvent()")))(),
    StringAndMapNToVersionChangeEvent: () => (T$3.StringAndMapNToVersionChangeEvent = dart.constFn(dart_rti.findType("indexed_db|VersionChangeEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToVersionChangeEvent: () => (T$3.dynamicAnddynamicToVersionChangeEvent = dart.constFn(dart_rti.findType("indexed_db|VersionChangeEvent(@,@)")))(),
    dynamicToVersionChangeEvent: () => (T$3.dynamicToVersionChangeEvent = dart.constFn(dart_rti.findType("indexed_db|VersionChangeEvent(@)")))(),
    OpenDBRequest: () => (T$3.OpenDBRequest = dart.constFn(dart_rti.findType("indexed_db|OpenDBRequest")))(),
    NodeTobool: () => (T$3.NodeTobool = dart.constFn(dart_rti.findType("core|bool(html|Node)")))(),
    ScrollState: () => (T$3.ScrollState = dart.constFn(dart_rti.findType("html|ScrollState")))(),
    ScrollStateTovoid: () => (T$3.ScrollStateTovoid = dart.constFn(dart_rti.findType("~(html|ScrollState)")))(),
    UnknownElement: () => (T$3.UnknownElement = dart.constFn(dart_rti.findType("html|UnknownElement")))(),
    MapNAndFnTodynamic: () => (T$3.MapNAndFnTodynamic = dart.constFn(dart_rti.findType("@(core|Map<@,@>?[~(core|Object?)?])")))(),
    _TrustedHtmlTreeSanitizer: () => (T$3._TrustedHtmlTreeSanitizer = dart.constFn(dart_rti.findType("html|_TrustedHtmlTreeSanitizer")))(),
    BaseElement: () => (T$3.BaseElement = dart.constFn(dart_rti.findType("html|BaseElement")))(),
    BodyElement: () => (T$3.BodyElement = dart.constFn(dart_rti.findType("html|BodyElement")))(),
    _ChildNodeListLazy: () => (T$3._ChildNodeListLazy = dart.constFn(dart_rti.findType("html|_ChildNodeListLazy")))(),
    ListOfNode$1: () => (T$3.ListOfNode$1 = dart.constFn(dart_rti.findType("core|List<html|Node>")))(),
    IterableOfNode: () => (T$3.IterableOfNode = dart.constFn(dart_rti.findType("core|Iterable<html|Node>")))(),
    NodeToNode$1: () => (T$3.NodeToNode$1 = dart.constFn(dart_rti.findType("html|Node(html|Node)")))(),
    IterableOfNodeAndNodeTovoid: () => (T$3.IterableOfNodeAndNodeTovoid = dart.constFn(dart_rti.findType("~(core|Iterable<html|Node>,html|Node)")))(),
    VoidToNode: () => (T$3.VoidToNode = dart.constFn(dart_rti.findType("html|Node()")))(),
    NodeN$2: () => (T$3.NodeN$2 = dart.constFn(dart_rti.findType("html|Node?")))(),
    DocumentN: () => (T$3.DocumentN = dart.constFn(dart_rti.findType("html|Document?")))(),
    boolNToNode: () => (T$3.boolNToNode = dart.constFn(dart_rti.findType("html|Node(core|bool?)")))(),
    NodeNTobool: () => (T$3.NodeNTobool = dart.constFn(dart_rti.findType("core|bool(html|Node?)")))(),
    MapNToNode: () => (T$3.MapNToNode = dart.constFn(dart_rti.findType("html|Node([core|Map<@,@>?])")))(),
    dynamicToNode: () => (T$3.dynamicToNode = dart.constFn(dart_rti.findType("html|Node(@)")))(),
    NodeAndNodeNToNode: () => (T$3.NodeAndNodeNToNode = dart.constFn(dart_rti.findType("html|Node(html|Node,html|Node?)")))(),
    NodeAndNodeToNode: () => (T$3.NodeAndNodeToNode = dart.constFn(dart_rti.findType("html|Node(html|Node,html|Node)")))(),
    StringN__ToElement: () => (T$3.StringN__ToElement = dart.constFn(dart_rti.findType("html|Element(core|String?{treeSanitizer:html|NodeTreeSanitizer?,validator:html|NodeValidator?})")))(),
    StringAndStringNToElement: () => (T$3.StringAndStringNToElement = dart.constFn(dart_rti.findType("html|Element(core|String[core|String?])")))(),
    VoidToElement: () => (T$3.VoidToElement = dart.constFn(dart_rti.findType("html|Element()")))(),
    StringNAndStringToStringN: () => (T$3.StringNAndStringToStringN = dart.constFn(dart_rti.findType("core|String?(core|String?,core|String)")))(),
    StringNAndStringTobool: () => (T$3.StringNAndStringTobool = dart.constFn(dart_rti.findType("core|bool(core|String?,core|String)")))(),
    StringNAndStringTovoid: () => (T$3.StringNAndStringTovoid = dart.constFn(dart_rti.findType("~(core|String?,core|String)")))(),
    StringAndObjectTovoid: () => (T$3.StringAndObjectTovoid = dart.constFn(dart_rti.findType("~(core|String,core|Object)")))(),
    StringNAndStringAndObjectTovoid: () => (T$3.StringNAndStringAndObjectTovoid = dart.constFn(dart_rti.findType("~(core|String?,core|String,core|Object)")))(),
    ListOfElement: () => (T$3.ListOfElement = dart.constFn(dart_rti.findType("core|List<html|Element>")))(),
    StringToElementListOfT: () => (T$3.StringToElementListOfT = dart.constFn(dart_rti.findType("html|ElementList<0^>(core|String)<html|Element>")))(),
    FnAndStringTovoid: () => (T$3.FnAndStringTovoid = dart.constFn(dart_rti.findType("~(~(html|ScrollState),core|String)")))(),
    StringToFutureOfScrollState: () => (T$3.StringToFutureOfScrollState = dart.constFn(dart_rti.findType("async|Future<html|ScrollState>(core|String)")))(),
    CssClassSet: () => (T$3.CssClassSet = dart.constFn(dart_rti.findType("html|CssClassSet")))(),
    StringToMapOfString$String: () => (T$3.StringToMapOfString$String = dart.constFn(dart_rti.findType("core|Map<core|String,core|String>(core|String)")))(),
    StringNToCssStyleDeclaration: () => (T$3.StringNToCssStyleDeclaration = dart.constFn(dart_rti.findType("html|CssStyleDeclaration([core|String?])")))(),
    String__Tovoid$5: () => (T$3.String__Tovoid$5 = dart.constFn(dart_rti.findType("~(core|String{treeSanitizer:html|NodeTreeSanitizer?,validator:html|NodeValidator?})")))(),
    VoidToListOfRectangleOfnum: () => (T$3.VoidToListOfRectangleOfnum = dart.constFn(dart_rti.findType("core|List<math|Rectangle<core|num>>()")))(),
    IterableOfMapOfString$dynamicAnddynamicToAnimation: () => (T$3.IterableOfMapOfString$dynamicAnddynamicToAnimation = dart.constFn(dart_rti.findType("html|Animation(core|Iterable<core|Map<core|String,@>>[@])")))(),
    ObjectAnddynamicToAnimation: () => (T$3.ObjectAnddynamicToAnimation = dart.constFn(dart_rti.findType("html|Animation(core|Object[@])")))(),
    StringAndStringAndStringTovoid: () => (T$3.StringAndStringAndStringTovoid = dart.constFn(dart_rti.findType("~(core|String,core|String,core|String)")))(),
    ScrollAlignmentNTovoid: () => (T$3.ScrollAlignmentNTovoid = dart.constFn(dart_rti.findType("~([html|ScrollAlignment?])")))(),
    EventTargetToString: () => (T$3.EventTargetToString = dart.constFn(dart_rti.findType("core|String(html|EventTarget)")))(),
    StringAndString__Tovoid: () => (T$3.StringAndString__Tovoid = dart.constFn(dart_rti.findType("~(core|String,core|String{treeSanitizer:html|NodeTreeSanitizer?,validator:html|NodeValidator?})")))(),
    StringAndElementToElement: () => (T$3.StringAndElementToElement = dart.constFn(dart_rti.findType("html|Element(core|String,html|Element)")))(),
    StringAndElementTovoid: () => (T$3.StringAndElementTovoid = dart.constFn(dart_rti.findType("~(core|String,html|Element)")))(),
    StringAndNodeTovoid: () => (T$3.StringAndNodeTovoid = dart.constFn(dart_rti.findType("~(core|String,html|Node)")))(),
    VoidToShadowRoot: () => (T$3.VoidToShadowRoot = dart.constFn(dart_rti.findType("html|ShadowRoot()")))(),
    ShadowRootN: () => (T$3.ShadowRootN = dart.constFn(dart_rti.findType("html|ShadowRoot?")))(),
    CssRect: () => (T$3.CssRect = dart.constFn(dart_rti.findType("html|CssRect")))()
  };
  var T$4 = {
    ElementToPointOfnum: () => (T$4.ElementToPointOfnum = dart.constFn(dart_rti.findType("math|Point<core|num>(html|Element)")))(),
    ElementNAndElementToPointOfnum: () => (T$4.ElementNAndElementToPointOfnum = dart.constFn(dart_rti.findType("math|Point<core|num>(html|Element?,html|Element)")))(),
    StringN__ToDocumentFragment: () => (T$4.StringN__ToDocumentFragment = dart.constFn(dart_rti.findType("html|DocumentFragment(core|String?{treeSanitizer:html|NodeTreeSanitizer?,validator:html|NodeValidator?})")))(),
    StringN__Tovoid: () => (T$4.StringN__Tovoid = dart.constFn(dart_rti.findType("~(core|String?{treeSanitizer:html|NodeTreeSanitizer?,validator:html|NodeValidator?})")))(),
    ElementEvents: () => (T$4.ElementEvents = dart.constFn(dart_rti.findType("html|ElementEvents")))(),
    ElementTobool: () => (T$4.ElementTobool = dart.constFn(dart_rti.findType("core|bool(html|Element)")))(),
    ElementToString: () => (T$4.ElementToString = dart.constFn(dart_rti.findType("core|String(html|Element)")))(),
    MapNToFutureOfvoid: () => (T$4.MapNToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>([core|Map<@,@>?])")))(),
    CssStyleDeclaration: () => (T$4.CssStyleDeclaration = dart.constFn(dart_rti.findType("html|CssStyleDeclaration")))(),
    AccessibleNodeN: () => (T$4.AccessibleNodeN = dart.constFn(dart_rti.findType("html|AccessibleNode?")))(),
    SlotElementN: () => (T$4.SlotElementN = dart.constFn(dart_rti.findType("html|SlotElement?")))(),
    _NamedNodeMapN: () => (T$4._NamedNodeMapN = dart.constFn(dart_rti.findType("html|_NamedNodeMap?")))(),
    StylePropertyMapN: () => (T$4.StylePropertyMapN = dart.constFn(dart_rti.findType("html|StylePropertyMap?")))(),
    MapToShadowRoot: () => (T$4.MapToShadowRoot = dart.constFn(dart_rti.findType("html|ShadowRoot(core|Map<@,@>)")))(),
    dynamicToShadowRoot: () => (T$4.dynamicToShadowRoot = dart.constFn(dart_rti.findType("html|ShadowRoot(@)")))(),
    StringToElementN: () => (T$4.StringToElementN = dart.constFn(dart_rti.findType("html|Element?(core|String)")))(),
    VoidToListOfAnimation: () => (T$4.VoidToListOfAnimation = dart.constFn(dart_rti.findType("core|List<html|Animation>()")))(),
    VoidToRectangleOfnum: () => (T$4.VoidToRectangleOfnum = dart.constFn(dart_rti.findType("math|Rectangle<core|num>()")))(),
    VoidToListOfNode: () => (T$4.VoidToListOfNode = dart.constFn(dart_rti.findType("core|List<html|Node>()")))(),
    StringToListOfNode: () => (T$4.StringToListOfNode = dart.constFn(dart_rti.findType("core|List<html|Node>(core|String)")))(),
    dynamicAndnumNTovoid: () => (T$4.dynamicAndnumNTovoid = dart.constFn(dart_rti.findType("~([@,core|num?])")))(),
    numNAnddynamicTovoid: () => (T$4.numNAnddynamicTovoid = dart.constFn(dart_rti.findType("~(core|num?,@)")))(),
    boolNTovoid: () => (T$4.boolNTovoid = dart.constFn(dart_rti.findType("~([core|bool?])")))(),
    ElementStreamOfEvent: () => (T$4.ElementStreamOfEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|Event>")))(),
    ElementStreamOfMouseEvent: () => (T$4.ElementStreamOfMouseEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|MouseEvent>")))(),
    ElementStreamOfClipboardEvent: () => (T$4.ElementStreamOfClipboardEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|ClipboardEvent>")))(),
    ElementStreamOfKeyboardEvent: () => (T$4.ElementStreamOfKeyboardEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|KeyboardEvent>")))(),
    ElementStreamOfWheelEvent: () => (T$4.ElementStreamOfWheelEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|WheelEvent>")))(),
    ElementStreamOfTouchEvent: () => (T$4.ElementStreamOfTouchEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|TouchEvent>")))(),
    ElementStreamOfTransitionEvent: () => (T$4.ElementStreamOfTransitionEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|TransitionEvent>")))(),
    EventStreamProviderOfWheelEvent: () => (T$4.EventStreamProviderOfWheelEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|WheelEvent>")))(),
    EventStreamProviderOfTransitionEvent: () => (T$4.EventStreamProviderOfTransitionEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|TransitionEvent>")))(),
    HtmlDocumentN: () => (T$4.HtmlDocumentN = dart.constFn(dart_rti.findType("html|HtmlDocument?")))(),
    RangeN: () => (T$4.RangeN = dart.constFn(dart_rti.findType("html|Range?")))(),
    NodeValidatorBuilderN: () => (T$4.NodeValidatorBuilderN = dart.constFn(dart_rti.findType("html|NodeValidatorBuilder?")))(),
    _ValidatingTreeSanitizerN: () => (T$4._ValidatingTreeSanitizerN = dart.constFn(dart_rti.findType("html|_ValidatingTreeSanitizer?")))(),
    EventStreamProviderOfMouseEvent: () => (T$4.EventStreamProviderOfMouseEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|MouseEvent>")))(),
    EventStreamProviderOfClipboardEvent: () => (T$4.EventStreamProviderOfClipboardEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|ClipboardEvent>")))(),
    EventStreamProviderOfKeyboardEvent: () => (T$4.EventStreamProviderOfKeyboardEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|KeyboardEvent>")))(),
    EventStreamProviderOfTouchEvent: () => (T$4.EventStreamProviderOfTouchEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|TouchEvent>")))(),
    WheelEventL: () => (T$4.WheelEventL = dart.constFn(dart_rti.findType("html|WheelEvent*")))(),
    _CustomEventStreamProviderOfWheelEventL: () => (T$4._CustomEventStreamProviderOfWheelEventL = dart.constFn(dart_rti.findType("html|_CustomEventStreamProvider<html|WheelEvent*>")))(),
    TransitionEventL: () => (T$4.TransitionEventL = dart.constFn(dart_rti.findType("html|TransitionEvent*")))(),
    _CustomEventStreamProviderOfTransitionEventL: () => (T$4._CustomEventStreamProviderOfTransitionEventL = dart.constFn(dart_rti.findType("html|_CustomEventStreamProvider<html|TransitionEvent*>")))(),
    MouseEventL: () => (T$4.MouseEventL = dart.constFn(dart_rti.findType("html|MouseEvent*")))(),
    EventStreamProviderOfMouseEventL: () => (T$4.EventStreamProviderOfMouseEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|MouseEvent*>")))(),
    ClipboardEventL: () => (T$4.ClipboardEventL = dart.constFn(dart_rti.findType("html|ClipboardEvent*")))(),
    EventStreamProviderOfClipboardEventL: () => (T$4.EventStreamProviderOfClipboardEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|ClipboardEvent*>")))(),
    KeyboardEventL: () => (T$4.KeyboardEventL = dart.constFn(dart_rti.findType("html|KeyboardEvent*")))(),
    EventStreamProviderOfKeyboardEventL: () => (T$4.EventStreamProviderOfKeyboardEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|KeyboardEvent*>")))(),
    TouchEventL: () => (T$4.TouchEventL = dart.constFn(dart_rti.findType("html|TouchEvent*")))(),
    EventStreamProviderOfTouchEventL: () => (T$4.EventStreamProviderOfTouchEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|TouchEvent*>")))(),
    EventStreamProviderOfWheelEventL: () => (T$4.EventStreamProviderOfWheelEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|WheelEvent*>")))(),
    VoidToHtmlElement: () => (T$4.VoidToHtmlElement = dart.constFn(dart_rti.findType("html|HtmlElement()")))(),
    VoidToExtendableEvent: () => (T$4.VoidToExtendableEvent = dart.constFn(dart_rti.findType("html|ExtendableEvent()")))(),
    StringAndMapNToExtendableEvent: () => (T$4.StringAndMapNToExtendableEvent = dart.constFn(dart_rti.findType("html|ExtendableEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToExtendableEvent: () => (T$4.dynamicAnddynamicToExtendableEvent = dart.constFn(dart_rti.findType("html|ExtendableEvent(@,@)")))(),
    dynamicToExtendableEvent: () => (T$4.dynamicToExtendableEvent = dart.constFn(dart_rti.findType("html|ExtendableEvent(@)")))(),
    VoidToAbortPaymentEvent: () => (T$4.VoidToAbortPaymentEvent = dart.constFn(dart_rti.findType("html|AbortPaymentEvent()")))(),
    StringAndMapToAbortPaymentEvent: () => (T$4.StringAndMapToAbortPaymentEvent = dart.constFn(dart_rti.findType("html|AbortPaymentEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToAbortPaymentEvent: () => (T$4.dynamicAnddynamicToAbortPaymentEvent = dart.constFn(dart_rti.findType("html|AbortPaymentEvent(@,@)")))(),
    VoidToSensor: () => (T$4.VoidToSensor = dart.constFn(dart_rti.findType("html|Sensor()")))(),
    VoidToOrientationSensor: () => (T$4.VoidToOrientationSensor = dart.constFn(dart_rti.findType("html|OrientationSensor()")))(),
    ListNOfnum: () => (T$4.ListNOfnum = dart.constFn(dart_rti.findType("core|List<core|num>?")))(),
    VoidToAbsoluteOrientationSensor: () => (T$4.VoidToAbsoluteOrientationSensor = dart.constFn(dart_rti.findType("html|AbsoluteOrientationSensor()")))(),
    MapNToAbsoluteOrientationSensor: () => (T$4.MapNToAbsoluteOrientationSensor = dart.constFn(dart_rti.findType("html|AbsoluteOrientationSensor([core|Map<@,@>?])")))(),
    dynamicToAbsoluteOrientationSensor: () => (T$4.dynamicToAbsoluteOrientationSensor = dart.constFn(dart_rti.findType("html|AbsoluteOrientationSensor(@)")))(),
    VoidToAbstractWorker: () => (T$4.VoidToAbstractWorker = dart.constFn(dart_rti.findType("html|AbstractWorker()")))(),
    VoidToAccelerometer: () => (T$4.VoidToAccelerometer = dart.constFn(dart_rti.findType("html|Accelerometer()")))(),
    MapNToAccelerometer: () => (T$4.MapNToAccelerometer = dart.constFn(dart_rti.findType("html|Accelerometer([core|Map<@,@>?])")))(),
    dynamicToAccelerometer: () => (T$4.dynamicToAccelerometer = dart.constFn(dart_rti.findType("html|Accelerometer(@)")))(),
    VoidToAccessibleNode: () => (T$4.VoidToAccessibleNode = dart.constFn(dart_rti.findType("html|AccessibleNode()")))(),
    AccessibleNodeListN: () => (T$4.AccessibleNodeListN = dart.constFn(dart_rti.findType("html|AccessibleNodeList?")))(),
    AccessibleNodeTovoid: () => (T$4.AccessibleNodeTovoid = dart.constFn(dart_rti.findType("~(html|AccessibleNode)")))(),
    VoidToAccessibleNodeList: () => (T$4.VoidToAccessibleNodeList = dart.constFn(dart_rti.findType("html|AccessibleNodeList()")))(),
    ListNOfAccessibleNodeToAccessibleNodeList: () => (T$4.ListNOfAccessibleNodeToAccessibleNodeList = dart.constFn(dart_rti.findType("html|AccessibleNodeList([core|List<html|AccessibleNode>?])")))(),
    dynamicToAccessibleNodeList: () => (T$4.dynamicToAccessibleNodeList = dart.constFn(dart_rti.findType("html|AccessibleNodeList(@)")))(),
    intAndAccessibleNodeTovoid: () => (T$4.intAndAccessibleNodeTovoid = dart.constFn(dart_rti.findType("~(core|int,html|AccessibleNode)")))(),
    AccessibleNodeAndAccessibleNodeNTovoid: () => (T$4.AccessibleNodeAndAccessibleNodeNTovoid = dart.constFn(dart_rti.findType("~(html|AccessibleNode,html|AccessibleNode?)")))(),
    intToAccessibleNodeN: () => (T$4.intToAccessibleNodeN = dart.constFn(dart_rti.findType("html|AccessibleNode?(core|int)")))(),
    VoidToAmbientLightSensor: () => (T$4.VoidToAmbientLightSensor = dart.constFn(dart_rti.findType("html|AmbientLightSensor()")))(),
    MapNToAmbientLightSensor: () => (T$4.MapNToAmbientLightSensor = dart.constFn(dart_rti.findType("html|AmbientLightSensor([core|Map<@,@>?])")))(),
    dynamicToAmbientLightSensor: () => (T$4.dynamicToAmbientLightSensor = dart.constFn(dart_rti.findType("html|AmbientLightSensor(@)")))(),
    VoidToAnchorElement: () => (T$4.VoidToAnchorElement = dart.constFn(dart_rti.findType("html|AnchorElement()")))(),
    __ToAnchorElement: () => (T$4.__ToAnchorElement = dart.constFn(dart_rti.findType("html|AnchorElement({href:core|String?})")))(),
    Animation: () => (T$4.Animation = dart.constFn(dart_rti.findType("html|Animation")))(),
    VoidToAnimation: () => (T$4.VoidToAnimation = dart.constFn(dart_rti.findType("html|Animation()")))(),
    AnimationEffectReadOnlyNAndAnimationTimelineNToAnimation: () => (T$4.AnimationEffectReadOnlyNAndAnimationTimelineNToAnimation = dart.constFn(dart_rti.findType("html|Animation([html|AnimationEffectReadOnly?,html|AnimationTimeline?])")))(),
    dynamicAnddynamicToAnimation: () => (T$4.dynamicAnddynamicToAnimation = dart.constFn(dart_rti.findType("html|Animation(@,@)")))(),
    dynamicToAnimation: () => (T$4.dynamicToAnimation = dart.constFn(dart_rti.findType("html|Animation(@)")))(),
    AnimationEffectReadOnlyN: () => (T$4.AnimationEffectReadOnlyN = dart.constFn(dart_rti.findType("html|AnimationEffectReadOnly?")))(),
    FutureOfAnimation: () => (T$4.FutureOfAnimation = dart.constFn(dart_rti.findType("async|Future<html|Animation>")))(),
    AnimationTimelineN: () => (T$4.AnimationTimelineN = dart.constFn(dart_rti.findType("html|AnimationTimeline?")))(),
    VoidToAnimationEffectReadOnly: () => (T$4.VoidToAnimationEffectReadOnly = dart.constFn(dart_rti.findType("html|AnimationEffectReadOnly()")))(),
    AnimationEffectTimingReadOnlyN: () => (T$4.AnimationEffectTimingReadOnlyN = dart.constFn(dart_rti.findType("html|AnimationEffectTimingReadOnly?")))(),
    VoidToMap: () => (T$4.VoidToMap = dart.constFn(dart_rti.findType("core|Map<@,@>()")))(),
    VoidToAnimationEffectTimingReadOnly: () => (T$4.VoidToAnimationEffectTimingReadOnly = dart.constFn(dart_rti.findType("html|AnimationEffectTimingReadOnly()")))(),
    VoidToAnimationEffectTiming: () => (T$4.VoidToAnimationEffectTiming = dart.constFn(dart_rti.findType("html|AnimationEffectTiming()")))(),
    VoidToAnimationEvent: () => (T$4.VoidToAnimationEvent = dart.constFn(dart_rti.findType("html|AnimationEvent()")))(),
    StringAndMapNToAnimationEvent: () => (T$4.StringAndMapNToAnimationEvent = dart.constFn(dart_rti.findType("html|AnimationEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToAnimationEvent: () => (T$4.dynamicAnddynamicToAnimationEvent = dart.constFn(dart_rti.findType("html|AnimationEvent(@,@)")))(),
    dynamicToAnimationEvent: () => (T$4.dynamicToAnimationEvent = dart.constFn(dart_rti.findType("html|AnimationEvent(@)")))(),
    VoidToAnimationPlaybackEvent: () => (T$4.VoidToAnimationPlaybackEvent = dart.constFn(dart_rti.findType("html|AnimationPlaybackEvent()")))(),
    StringAndMapNToAnimationPlaybackEvent: () => (T$4.StringAndMapNToAnimationPlaybackEvent = dart.constFn(dart_rti.findType("html|AnimationPlaybackEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToAnimationPlaybackEvent: () => (T$4.dynamicAnddynamicToAnimationPlaybackEvent = dart.constFn(dart_rti.findType("html|AnimationPlaybackEvent(@,@)")))(),
    dynamicToAnimationPlaybackEvent: () => (T$4.dynamicToAnimationPlaybackEvent = dart.constFn(dart_rti.findType("html|AnimationPlaybackEvent(@)")))(),
    VoidToAnimationTimeline: () => (T$4.VoidToAnimationTimeline = dart.constFn(dart_rti.findType("html|AnimationTimeline()")))(),
    VoidToWorkletGlobalScope: () => (T$4.VoidToWorkletGlobalScope = dart.constFn(dart_rti.findType("html|WorkletGlobalScope()")))(),
    VoidToAnimationWorkletGlobalScope: () => (T$4.VoidToAnimationWorkletGlobalScope = dart.constFn(dart_rti.findType("html|AnimationWorkletGlobalScope()")))(),
    VoidToApplicationCache: () => (T$4.VoidToApplicationCache = dart.constFn(dart_rti.findType("html|ApplicationCache()")))(),
    StreamOfProgressEvent: () => (T$4.StreamOfProgressEvent = dart.constFn(dart_rti.findType("async|Stream<html|ProgressEvent>")))(),
    EventStreamProviderOfProgressEvent: () => (T$4.EventStreamProviderOfProgressEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|ProgressEvent>")))(),
    ProgressEventL: () => (T$4.ProgressEventL = dart.constFn(dart_rti.findType("html|ProgressEvent*")))(),
    EventStreamProviderOfProgressEventL: () => (T$4.EventStreamProviderOfProgressEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|ProgressEvent*>")))(),
    VoidToApplicationCacheErrorEvent: () => (T$4.VoidToApplicationCacheErrorEvent = dart.constFn(dart_rti.findType("html|ApplicationCacheErrorEvent()")))(),
    StringAndMapNToApplicationCacheErrorEvent: () => (T$4.StringAndMapNToApplicationCacheErrorEvent = dart.constFn(dart_rti.findType("html|ApplicationCacheErrorEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToApplicationCacheErrorEvent: () => (T$4.dynamicAnddynamicToApplicationCacheErrorEvent = dart.constFn(dart_rti.findType("html|ApplicationCacheErrorEvent(@,@)")))(),
    dynamicToApplicationCacheErrorEvent: () => (T$4.dynamicToApplicationCacheErrorEvent = dart.constFn(dart_rti.findType("html|ApplicationCacheErrorEvent(@)")))(),
    VoidToAreaElement: () => (T$4.VoidToAreaElement = dart.constFn(dart_rti.findType("html|AreaElement()")))(),
    VoidToMediaElement: () => (T$4.VoidToMediaElement = dart.constFn(dart_rti.findType("html|MediaElement()")))(),
    AudioTrackListN: () => (T$4.AudioTrackListN = dart.constFn(dart_rti.findType("web_audio|AudioTrackList?")))(),
    TimeRanges: () => (T$4.TimeRanges = dart.constFn(dart_rti.findType("html|TimeRanges")))(),
    DomTokenListN: () => (T$4.DomTokenListN = dart.constFn(dart_rti.findType("html|DomTokenList?")))(),
    MediaErrorN: () => (T$4.MediaErrorN = dart.constFn(dart_rti.findType("html|MediaError?")))(),
    MediaKeysN: () => (T$4.MediaKeysN = dart.constFn(dart_rti.findType("html|MediaKeys?")))(),
    RemotePlaybackN: () => (T$4.RemotePlaybackN = dart.constFn(dart_rti.findType("html|RemotePlayback?")))(),
    MediaStreamN: () => (T$4.MediaStreamN = dart.constFn(dart_rti.findType("html|MediaStream?")))(),
    TextTrackListN: () => (T$4.TextTrackListN = dart.constFn(dart_rti.findType("html|TextTrackList?")))(),
    VideoTrackListN: () => (T$4.VideoTrackListN = dart.constFn(dart_rti.findType("html|VideoTrackList?")))(),
    StringAndStringNAndStringNToTextTrack: () => (T$4.StringAndStringNAndStringNToTextTrack = dart.constFn(dart_rti.findType("html|TextTrack(core|String[core|String?,core|String?])")))(),
    StringNAndStringNToString: () => (T$4.StringNAndStringNToString = dart.constFn(dart_rti.findType("core|String(core|String?[core|String?])")))(),
    VoidToMediaStream: () => (T$4.VoidToMediaStream = dart.constFn(dart_rti.findType("html|MediaStream()")))(),
    MediaKeysNToFuture: () => (T$4.MediaKeysNToFuture = dart.constFn(dart_rti.findType("async|Future<@>(html|MediaKeys?)")))(),
    StringToFuture: () => (T$4.StringToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|String)")))(),
    StringNToAudioElement: () => (T$4.StringNToAudioElement = dart.constFn(dart_rti.findType("html|AudioElement([core|String?])")))(),
    dynamicToAudioElement: () => (T$4.dynamicToAudioElement = dart.constFn(dart_rti.findType("html|AudioElement(@)")))(),
    VoidToAudioElement: () => (T$4.VoidToAudioElement = dart.constFn(dart_rti.findType("html|AudioElement()")))(),
    VoidToAuthenticatorResponse: () => (T$4.VoidToAuthenticatorResponse = dart.constFn(dart_rti.findType("html|AuthenticatorResponse()")))(),
    ByteBufferN: () => (T$4.ByteBufferN = dart.constFn(dart_rti.findType("typed_data|ByteBuffer?")))(),
    VoidToAuthenticatorAssertionResponse: () => (T$4.VoidToAuthenticatorAssertionResponse = dart.constFn(dart_rti.findType("html|AuthenticatorAssertionResponse()")))(),
    VoidToAuthenticatorAttestationResponse: () => (T$4.VoidToAuthenticatorAttestationResponse = dart.constFn(dart_rti.findType("html|AuthenticatorAttestationResponse()")))(),
    VoidToBRElement: () => (T$4.VoidToBRElement = dart.constFn(dart_rti.findType("html|BRElement()")))(),
    VoidToBackgroundFetchEvent: () => (T$4.VoidToBackgroundFetchEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchEvent()")))(),
    StringAndMapToBackgroundFetchEvent: () => (T$4.StringAndMapToBackgroundFetchEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToBackgroundFetchEvent: () => (T$4.dynamicAnddynamicToBackgroundFetchEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchEvent(@,@)")))(),
    VoidToBackgroundFetchClickEvent: () => (T$4.VoidToBackgroundFetchClickEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchClickEvent()")))(),
    StringAndMapToBackgroundFetchClickEvent: () => (T$4.StringAndMapToBackgroundFetchClickEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchClickEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToBackgroundFetchClickEvent: () => (T$4.dynamicAnddynamicToBackgroundFetchClickEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchClickEvent(@,@)")))(),
    VoidToBackgroundFetchFailEvent: () => (T$4.VoidToBackgroundFetchFailEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchFailEvent()")))(),
    StringAndMapToBackgroundFetchFailEvent: () => (T$4.StringAndMapToBackgroundFetchFailEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchFailEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToBackgroundFetchFailEvent: () => (T$4.dynamicAnddynamicToBackgroundFetchFailEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchFailEvent(@,@)")))(),
    ListNOfBackgroundFetchSettledFetch: () => (T$4.ListNOfBackgroundFetchSettledFetch = dart.constFn(dart_rti.findType("core|List<html|BackgroundFetchSettledFetch>?")))(),
    VoidToBackgroundFetchFetch: () => (T$4.VoidToBackgroundFetchFetch = dart.constFn(dart_rti.findType("html|BackgroundFetchFetch()")))(),
    _RequestN: () => (T$4._RequestN = dart.constFn(dart_rti.findType("html|_Request?")))(),
    BackgroundFetchRegistration: () => (T$4.BackgroundFetchRegistration = dart.constFn(dart_rti.findType("html|BackgroundFetchRegistration")))(),
    VoidToBackgroundFetchManager: () => (T$4.VoidToBackgroundFetchManager = dart.constFn(dart_rti.findType("html|BackgroundFetchManager()")))(),
    StringAndObjectAndMapNToFutureOfBackgroundFetchRegistration: () => (T$4.StringAndObjectAndMapNToFutureOfBackgroundFetchRegistration = dart.constFn(dart_rti.findType("async|Future<html|BackgroundFetchRegistration>(core|String,core|Object[core|Map<@,@>?])")))(),
    StringToFutureOfBackgroundFetchRegistration: () => (T$4.StringToFutureOfBackgroundFetchRegistration = dart.constFn(dart_rti.findType("async|Future<html|BackgroundFetchRegistration>(core|String)")))(),
    VoidToFutureOfList: () => (T$4.VoidToFutureOfList = dart.constFn(dart_rti.findType("async|Future<core|List<@>>()")))(),
    VoidToBackgroundFetchRegistration: () => (T$4.VoidToBackgroundFetchRegistration = dart.constFn(dart_rti.findType("html|BackgroundFetchRegistration()")))(),
    VoidToBackgroundFetchSettledFetch: () => (T$4.VoidToBackgroundFetchSettledFetch = dart.constFn(dart_rti.findType("html|BackgroundFetchSettledFetch()")))(),
    _RequestAnd_ResponseToBackgroundFetchSettledFetch: () => (T$4._RequestAnd_ResponseToBackgroundFetchSettledFetch = dart.constFn(dart_rti.findType("html|BackgroundFetchSettledFetch(html|_Request,html|_Response)")))(),
    dynamicAnddynamicToBackgroundFetchSettledFetch: () => (T$4.dynamicAnddynamicToBackgroundFetchSettledFetch = dart.constFn(dart_rti.findType("html|BackgroundFetchSettledFetch(@,@)")))(),
    _ResponseN: () => (T$4._ResponseN = dart.constFn(dart_rti.findType("html|_Response?")))(),
    VoidToBackgroundFetchedEvent: () => (T$4.VoidToBackgroundFetchedEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchedEvent()")))(),
    StringAndMapToBackgroundFetchedEvent: () => (T$4.StringAndMapToBackgroundFetchedEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchedEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToBackgroundFetchedEvent: () => (T$4.dynamicAnddynamicToBackgroundFetchedEvent = dart.constFn(dart_rti.findType("html|BackgroundFetchedEvent(@,@)")))(),
    VoidToBarProp: () => (T$4.VoidToBarProp = dart.constFn(dart_rti.findType("html|BarProp()")))(),
    VoidToBarcodeDetector: () => (T$4.VoidToBarcodeDetector = dart.constFn(dart_rti.findType("html|BarcodeDetector()")))(),
    dynamicToFutureOfList: () => (T$4.dynamicToFutureOfList = dart.constFn(dart_rti.findType("async|Future<core|List<@>>(@)")))(),
    VoidToBaseElement: () => (T$4.VoidToBaseElement = dart.constFn(dart_rti.findType("html|BaseElement()")))(),
    VoidToBatteryManager: () => (T$4.VoidToBatteryManager = dart.constFn(dart_rti.findType("html|BatteryManager()")))(),
    VoidToBeforeInstallPromptEvent: () => (T$4.VoidToBeforeInstallPromptEvent = dart.constFn(dart_rti.findType("html|BeforeInstallPromptEvent()")))(),
    StringAndMapNToBeforeInstallPromptEvent: () => (T$4.StringAndMapNToBeforeInstallPromptEvent = dart.constFn(dart_rti.findType("html|BeforeInstallPromptEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToBeforeInstallPromptEvent: () => (T$4.dynamicAnddynamicToBeforeInstallPromptEvent = dart.constFn(dart_rti.findType("html|BeforeInstallPromptEvent(@,@)")))(),
    dynamicToBeforeInstallPromptEvent: () => (T$4.dynamicToBeforeInstallPromptEvent = dart.constFn(dart_rti.findType("html|BeforeInstallPromptEvent(@)")))(),
    FutureOfMapNOfString$dynamic: () => (T$4.FutureOfMapNOfString$dynamic = dart.constFn(dart_rti.findType("async|Future<core|Map<core|String,@>?>")))(),
    VoidToBeforeUnloadEvent: () => (T$4.VoidToBeforeUnloadEvent = dart.constFn(dart_rti.findType("html|BeforeUnloadEvent()")))(),
    Blob: () => (T$4.Blob = dart.constFn(dart_rti.findType("html|Blob")))(),
    VoidToBlob: () => (T$4.VoidToBlob = dart.constFn(dart_rti.findType("html|Blob()")))(),
    intNAndintNAndStringNToBlob: () => (T$4.intNAndintNAndStringNToBlob = dart.constFn(dart_rti.findType("html|Blob([core|int?,core|int?,core|String?])")))(),
    ListAndStringNAndStringNToBlob: () => (T$4.ListAndStringNAndStringNToBlob = dart.constFn(dart_rti.findType("html|Blob(core|List<@>[core|String?,core|String?])")))(),
    VoidToBlobEvent: () => (T$4.VoidToBlobEvent = dart.constFn(dart_rti.findType("html|BlobEvent()")))(),
    StringAndMapToBlobEvent: () => (T$4.StringAndMapToBlobEvent = dart.constFn(dart_rti.findType("html|BlobEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToBlobEvent: () => (T$4.dynamicAnddynamicToBlobEvent = dart.constFn(dart_rti.findType("html|BlobEvent(@,@)")))(),
    BlobN: () => (T$4.BlobN = dart.constFn(dart_rti.findType("html|Blob?")))(),
    VoidToBluetoothRemoteGattDescriptor: () => (T$4.VoidToBluetoothRemoteGattDescriptor = dart.constFn(dart_rti.findType("html|BluetoothRemoteGattDescriptor()")))(),
    _BluetoothRemoteGATTCharacteristicN: () => (T$4._BluetoothRemoteGATTCharacteristicN = dart.constFn(dart_rti.findType("html|_BluetoothRemoteGATTCharacteristic?")))(),
    ByteDataN: () => (T$4.ByteDataN = dart.constFn(dart_rti.findType("typed_data|ByteData?")))(),
    FormData: () => (T$4.FormData = dart.constFn(dart_rti.findType("html|FormData")))(),
    VoidToBody: () => (T$4.VoidToBody = dart.constFn(dart_rti.findType("html|Body()")))(),
    VoidToFutureOfBlob: () => (T$4.VoidToFutureOfBlob = dart.constFn(dart_rti.findType("async|Future<html|Blob>()")))(),
    VoidToFutureOfFormData: () => (T$4.VoidToFutureOfFormData = dart.constFn(dart_rti.findType("async|Future<html|FormData>()")))(),
    VoidToBodyElement: () => (T$4.VoidToBodyElement = dart.constFn(dart_rti.findType("html|BodyElement()")))(),
    ElementStreamOfMessageEvent: () => (T$4.ElementStreamOfMessageEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|MessageEvent>")))(),
    ElementStreamOfPopStateEvent: () => (T$4.ElementStreamOfPopStateEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|PopStateEvent>")))(),
    ElementStreamOfStorageEvent: () => (T$4.ElementStreamOfStorageEvent = dart.constFn(dart_rti.findType("html|ElementStream<html|StorageEvent>")))(),
    EventStreamProviderOfMessageEvent: () => (T$4.EventStreamProviderOfMessageEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|MessageEvent>")))(),
    EventStreamProviderOfPopStateEvent: () => (T$4.EventStreamProviderOfPopStateEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|PopStateEvent>")))(),
    EventStreamProviderOfStorageEvent: () => (T$4.EventStreamProviderOfStorageEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|StorageEvent>")))(),
    MessageEventL: () => (T$4.MessageEventL = dart.constFn(dart_rti.findType("html|MessageEvent*")))(),
    EventStreamProviderOfMessageEventL: () => (T$4.EventStreamProviderOfMessageEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|MessageEvent*>")))(),
    PopStateEventL: () => (T$4.PopStateEventL = dart.constFn(dart_rti.findType("html|PopStateEvent*")))(),
    EventStreamProviderOfPopStateEventL: () => (T$4.EventStreamProviderOfPopStateEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|PopStateEvent*>")))(),
    StorageEventL: () => (T$4.StorageEventL = dart.constFn(dart_rti.findType("html|StorageEvent*")))(),
    EventStreamProviderOfStorageEventL: () => (T$4.EventStreamProviderOfStorageEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|StorageEvent*>")))(),
    VoidToBroadcastChannel: () => (T$4.VoidToBroadcastChannel = dart.constFn(dart_rti.findType("html|BroadcastChannel()")))(),
    StringToBroadcastChannel: () => (T$4.StringToBroadcastChannel = dart.constFn(dart_rti.findType("html|BroadcastChannel(core|String)")))(),
    dynamicToBroadcastChannel: () => (T$4.dynamicToBroadcastChannel = dart.constFn(dart_rti.findType("html|BroadcastChannel(@)")))(),
    StreamOfMessageEvent: () => (T$4.StreamOfMessageEvent = dart.constFn(dart_rti.findType("async|Stream<html|MessageEvent>")))(),
    VoidToBudgetState: () => (T$4.VoidToBudgetState = dart.constFn(dart_rti.findType("html|BudgetState()")))(),
    VoidToButtonElement: () => (T$4.VoidToButtonElement = dart.constFn(dart_rti.findType("html|ButtonElement()")))(),
    FormElementN: () => (T$4.FormElementN = dart.constFn(dart_rti.findType("html|FormElement?")))(),
    ListNOfNode: () => (T$4.ListNOfNode = dart.constFn(dart_rti.findType("core|List<html|Node>?")))(),
    ValidityState: () => (T$4.ValidityState = dart.constFn(dart_rti.findType("html|ValidityState")))(),
    VoidToCharacterData: () => (T$4.VoidToCharacterData = dart.constFn(dart_rti.findType("html|CharacterData()")))(),
    intAndStringTovoid: () => (T$4.intAndStringTovoid = dart.constFn(dart_rti.findType("~(core|int,core|String)")))(),
    intAndintToString: () => (T$4.intAndintToString = dart.constFn(dart_rti.findType("core|String(core|int,core|int)")))(),
    StringToText: () => (T$4.StringToText = dart.constFn(dart_rti.findType("html|Text(core|String)")))(),
    VoidToText: () => (T$4.VoidToText = dart.constFn(dart_rti.findType("html|Text()")))(),
    intToText: () => (T$4.intToText = dart.constFn(dart_rti.findType("html|Text(core|int)")))(),
    VoidToCDataSection: () => (T$4.VoidToCDataSection = dart.constFn(dart_rti.findType("html|CDataSection()")))(),
    VoidToCacheStorage: () => (T$4.VoidToCacheStorage = dart.constFn(dart_rti.findType("html|CacheStorage()")))(),
    dynamicAndMapNToFuture: () => (T$4.dynamicAndMapNToFuture = dart.constFn(dart_rti.findType("async|Future<@>(@[core|Map<@,@>?])")))(),
    VoidToCanMakePaymentEvent: () => (T$4.VoidToCanMakePaymentEvent = dart.constFn(dart_rti.findType("html|CanMakePaymentEvent()")))(),
    StringAndMapToCanMakePaymentEvent: () => (T$4.StringAndMapToCanMakePaymentEvent = dart.constFn(dart_rti.findType("html|CanMakePaymentEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToCanMakePaymentEvent: () => (T$4.dynamicAnddynamicToCanMakePaymentEvent = dart.constFn(dart_rti.findType("html|CanMakePaymentEvent(@,@)")))(),
    VoidToMediaStreamTrack: () => (T$4.VoidToMediaStreamTrack = dart.constFn(dart_rti.findType("html|MediaStreamTrack()")))(),
    MapNToFuture: () => (T$4.MapNToFuture = dart.constFn(dart_rti.findType("async|Future<@>([core|Map<@,@>?])")))(),
    VoidToCanvasCaptureMediaStreamTrack: () => (T$4.VoidToCanvasCaptureMediaStreamTrack = dart.constFn(dart_rti.findType("html|CanvasCaptureMediaStreamTrack()")))(),
    CanvasElementN: () => (T$4.CanvasElementN = dart.constFn(dart_rti.findType("html|CanvasElement?")))(),
    RenderingContextN: () => (T$4.RenderingContextN = dart.constFn(dart_rti.findType("web_gl|RenderingContext?")))(),
    BlobNTovoid: () => (T$4.BlobNTovoid = dart.constFn(dart_rti.findType("~(html|Blob?)")))(),
    VoidToCanvasElement: () => (T$4.VoidToCanvasElement = dart.constFn(dart_rti.findType("html|CanvasElement()")))(),
    __ToCanvasElement: () => (T$4.__ToCanvasElement = dart.constFn(dart_rti.findType("html|CanvasElement({height:core|int?,width:core|int?})")))(),
    numNToMediaStream: () => (T$4.numNToMediaStream = dart.constFn(dart_rti.findType("html|MediaStream([core|num?])")))(),
    StringAndMapNToObjectN: () => (T$4.StringAndMapNToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToObjectN: () => (T$4.dynamicAnddynamicToObjectN = dart.constFn(dart_rti.findType("core|Object?(@,@)")))(),
    StringNAnddynamicToString: () => (T$4.StringNAnddynamicToString = dart.constFn(dart_rti.findType("core|String(core|String?[@])")))(),
    VoidToOffscreenCanvas: () => (T$4.VoidToOffscreenCanvas = dart.constFn(dart_rti.findType("html|OffscreenCanvas()")))(),
    ElementStreamOfContextEvent: () => (T$4.ElementStreamOfContextEvent = dart.constFn(dart_rti.findType("html|ElementStream<web_gl|ContextEvent>")))(),
    CanvasRenderingContext2D: () => (T$4.CanvasRenderingContext2D = dart.constFn(dart_rti.findType("html|CanvasRenderingContext2D")))(),
    __ToRenderingContextN: () => (T$4.__ToRenderingContextN = dart.constFn(dart_rti.findType("web_gl|RenderingContext?({alpha:@,antialias:@,depth:@,premultipliedAlpha:@,preserveDrawingBuffer:@,stencil:@})")))(),
    StringAndnumNToString: () => (T$4.StringAndnumNToString = dart.constFn(dart_rti.findType("core|String([core|String,core|num?])")))(),
    FnAndStringNAndObjectNTovoid: () => (T$4.FnAndStringNAndObjectNTovoid = dart.constFn(dart_rti.findType("~(~(html|Blob?)[core|String?,core|Object?])")))(),
    StringNAndObjectNToFutureOfBlob: () => (T$4.StringNAndObjectNToFutureOfBlob = dart.constFn(dart_rti.findType("async|Future<html|Blob>([core|String?,core|Object?])")))(),
    EventStreamProviderOfContextEvent: () => (T$4.EventStreamProviderOfContextEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<web_gl|ContextEvent>")))(),
    ContextEventL: () => (T$4.ContextEventL = dart.constFn(dart_rti.findType("web_gl|ContextEvent*")))(),
    EventStreamProviderOfContextEventL: () => (T$4.EventStreamProviderOfContextEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<web_gl|ContextEvent*>")))(),
    VoidToCanvasGradient: () => (T$4.VoidToCanvasGradient = dart.constFn(dart_rti.findType("html|CanvasGradient()")))(),
    numAndStringTovoid: () => (T$4.numAndStringTovoid = dart.constFn(dart_rti.findType("~(core|num,core|String)")))(),
    VoidToCanvasPattern: () => (T$4.VoidToCanvasPattern = dart.constFn(dart_rti.findType("html|CanvasPattern()")))(),
    MatrixTovoid: () => (T$4.MatrixTovoid = dart.constFn(dart_rti.findType("~(svg|Matrix)")))(),
    ImageData: () => (T$4.ImageData = dart.constFn(dart_rti.findType("html|ImageData")))(),
    VoidToCanvasRenderingContext2D: () => (T$4.VoidToCanvasRenderingContext2D = dart.constFn(dart_rti.findType("html|CanvasRenderingContext2D()")))(),
    CanvasElement: () => (T$4.CanvasElement = dart.constFn(dart_rti.findType("html|CanvasElement")))(),
    MatrixN: () => (T$4.MatrixN = dart.constFn(dart_rti.findType("svg|Matrix?")))(),
    MapNTovoid$1: () => (T$4.MapNTovoid$1 = dart.constFn(dart_rti.findType("~([core|Map<@,@>?])")))(),
    numAndnumAndnum__Tovoid: () => (T$4.numAndnumAndnum__Tovoid = dart.constFn(dart_rti.findType("~(core|num,core|num,core|num,core|num)")))(),
    dynamicAndStringNTovoid: () => (T$4.dynamicAndStringNTovoid = dart.constFn(dart_rti.findType("~([@,core|String?])")))(),
    dynamicAndintNAnddynamic__ToImageData: () => (T$4.dynamicAndintNAnddynamic__ToImageData = dart.constFn(dart_rti.findType("html|ImageData(@[core|int?,@,core|Map<@,@>?])")))(),
    intAnddynamicTodynamic: () => (T$4.intAnddynamicTodynamic = dart.constFn(dart_rti.findType("@(core|int,@)")))(),
    intAnddynamicAnddynamicTodynamic: () => (T$4.intAnddynamicAnddynamicTodynamic = dart.constFn(dart_rti.findType("@(core|int,@,@)")))(),
    dynamicAnddynamicAndintNTodynamic: () => (T$4.dynamicAnddynamicAndintNTodynamic = dart.constFn(dart_rti.findType("@(@,@,core|int?)")))(),
    dynamicAnddynamicAndintN__Todynamic: () => (T$4.dynamicAnddynamicAndintN__Todynamic = dart.constFn(dart_rti.findType("@(@,@,core|int?,@)")))(),
    numAndnumAndnum__ToCanvasGradient: () => (T$4.numAndnumAndnum__ToCanvasGradient = dart.constFn(dart_rti.findType("html|CanvasGradient(core|num,core|num,core|num,core|num)")))(),
    ObjectAndStringToCanvasPatternN: () => (T$4.ObjectAndStringToCanvasPatternN = dart.constFn(dart_rti.findType("html|CanvasPattern?(core|Object,core|String)")))(),
    numAndnumAndnum__ToCanvasGradient$1: () => (T$4.numAndnumAndnum__ToCanvasGradient$1 = dart.constFn(dart_rti.findType("html|CanvasGradient(core|num,core|num,core|num,core|num,core|num,core|num)")))(),
    dynamicAndElementNTovoid: () => (T$4.dynamicAndElementNTovoid = dart.constFn(dart_rti.findType("~(@[html|Element?])")))(),
    intAndintAndint__ToImageData: () => (T$4.intAndintAndint__ToImageData = dart.constFn(dart_rti.findType("html|ImageData(core|int,core|int,core|int,core|int)")))(),
    dynamicAnddynamicAnddynamic__Todynamic: () => (T$4.dynamicAnddynamicAnddynamic__Todynamic = dart.constFn(dart_rti.findType("@(@,@,@,@)")))(),
    VoidToListOfnum: () => (T$4.VoidToListOfnum = dart.constFn(dart_rti.findType("core|List<core|num>()")))(),
    dynamicAndnumAnddynamic__Tobool: () => (T$4.dynamicAndnumAnddynamic__Tobool = dart.constFn(dart_rti.findType("core|bool(@,core|num[@,core|String?])")))(),
    dynamicAndnumAndnumNTobool: () => (T$4.dynamicAndnumAndnumNTobool = dart.constFn(dart_rti.findType("core|bool(@,core|num[core|num?])")))(),
    StringToTextMetrics: () => (T$4.StringToTextMetrics = dart.constFn(dart_rti.findType("html|TextMetrics(core|String)")))(),
    ImageDataAndintAndint__Tovoid: () => (T$4.ImageDataAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(html|ImageData,core|int,core|int[core|int?,core|int?,core|int?,core|int?])")))(),
    dynamicAnddynamicAnddynamic__Tovoid: () => (T$4.dynamicAnddynamicAnddynamic__Tovoid = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@)")))(),
    numAndnumTovoid: () => (T$4.numAndnumTovoid = dart.constFn(dart_rti.findType("~(core|num,core|num)")))(),
    Path2DNTovoid: () => (T$4.Path2DNTovoid = dart.constFn(dart_rti.findType("~([html|Path2D?])")))(),
    numAndnumAndnum__Tovoid$1: () => (T$4.numAndnumAndnum__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|num,core|num,core|num,core|num,core|num,core|num)")))(),
    StringAndnumAndnum__Tovoid: () => (T$4.StringAndnumAndnum__Tovoid = dart.constFn(dart_rti.findType("~(core|String,core|num,core|num[core|num?])")))(),
    numAndnumAndnum__Tovoid$2: () => (T$4.numAndnumAndnum__Tovoid$2 = dart.constFn(dart_rti.findType("~(core|num,core|num,core|num,core|num,core|num,core|bool?)")))(),
    numAndnumAndnum__Tovoid$3: () => (T$4.numAndnumAndnum__Tovoid$3 = dart.constFn(dart_rti.findType("~(core|num,core|num,core|num,core|num,core|num)")))(),
    numAndnumAndnum__Tovoid$4: () => (T$4.numAndnumAndnum__Tovoid$4 = dart.constFn(dart_rti.findType("~(core|num,core|num,core|num,core|num,core|num,core|num,core|num,core|bool?)")))(),
    ImageDataToImageData: () => (T$4.ImageDataToImageData = dart.constFn(dart_rti.findType("html|ImageData(html|ImageData)")))(),
    intAndintAndint__Tovoid: () => (T$4.intAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int[core|num])")))(),
    intAndnumAndnum__Tovoid: () => (T$4.intAndnumAndnum__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|num,core|num[core|num])")))(),
    numAndnumAndnum__Tovoid$5: () => (T$4.numAndnumAndnum__Tovoid$5 = dart.constFn(dart_rti.findType("~(core|num,core|num,core|num,core|num,core|num[core|bool])")))(),
    ImageElementAndStringToCanvasPattern: () => (T$4.ImageElementAndStringToCanvasPattern = dart.constFn(dart_rti.findType("html|CanvasPattern(html|ImageElement,core|String)")))(),
    CanvasImageSourceAndRectangleOfnum__Tovoid: () => (T$4.CanvasImageSourceAndRectangleOfnum__Tovoid = dart.constFn(dart_rti.findType("~(html|CanvasImageSource,math|Rectangle<core|num>{sourceRect:math|Rectangle<core|num>?})")))(),
    CanvasImageSourceAndnumAndnumTovoid: () => (T$4.CanvasImageSourceAndnumAndnumTovoid = dart.constFn(dart_rti.findType("~(html|CanvasImageSource,core|num,core|num)")))(),
    CanvasImageSourceAndnumAndnum__Tovoid: () => (T$4.CanvasImageSourceAndnumAndnum__Tovoid = dart.constFn(dart_rti.findType("~(html|CanvasImageSource,core|num,core|num,core|num,core|num)")))(),
    CanvasImageSourceAndnumAndnum__Tovoid$1: () => (T$4.CanvasImageSourceAndnumAndnum__Tovoid$1 = dart.constFn(dart_rti.findType("~(html|CanvasImageSource,core|num,core|num,core|num,core|num,core|num,core|num,core|num,core|num)")))(),
    ListOfnumTovoid: () => (T$4.ListOfnumTovoid = dart.constFn(dart_rti.findType("~(core|List<core|num>)")))(),
    VoidToChildNode: () => (T$4.VoidToChildNode = dart.constFn(dart_rti.findType("html|ChildNode()")))(),
    VoidToClient: () => (T$4.VoidToClient = dart.constFn(dart_rti.findType("html|Client()")))(),
    ObjectAndListNOfObjectTovoid: () => (T$4.ObjectAndListNOfObjectTovoid = dart.constFn(dart_rti.findType("~(core|Object[core|List<core|Object>?])")))(),
    WindowClient: () => (T$4.WindowClient = dart.constFn(dart_rti.findType("html|WindowClient")))(),
    VoidToClients: () => (T$4.VoidToClients = dart.constFn(dart_rti.findType("html|Clients()")))(),
    MapNToFutureOfList: () => (T$4.MapNToFutureOfList = dart.constFn(dart_rti.findType("async|Future<core|List<@>>([core|Map<@,@>?])")))(),
    StringToFutureOfWindowClient: () => (T$4.StringToFutureOfWindowClient = dart.constFn(dart_rti.findType("async|Future<html|WindowClient>(core|String)")))(),
    VoidToClipboardEvent: () => (T$4.VoidToClipboardEvent = dart.constFn(dart_rti.findType("html|ClipboardEvent()")))(),
    StringAndMapNToClipboardEvent: () => (T$4.StringAndMapNToClipboardEvent = dart.constFn(dart_rti.findType("html|ClipboardEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToClipboardEvent: () => (T$4.dynamicAnddynamicToClipboardEvent = dart.constFn(dart_rti.findType("html|ClipboardEvent(@,@)")))(),
    dynamicToClipboardEvent: () => (T$4.dynamicToClipboardEvent = dart.constFn(dart_rti.findType("html|ClipboardEvent(@)")))(),
    DataTransferN: () => (T$4.DataTransferN = dart.constFn(dart_rti.findType("html|DataTransfer?")))(),
    VoidToCloseEvent: () => (T$4.VoidToCloseEvent = dart.constFn(dart_rti.findType("html|CloseEvent()")))(),
    StringAndMapNToCloseEvent: () => (T$4.StringAndMapNToCloseEvent = dart.constFn(dart_rti.findType("html|CloseEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToCloseEvent: () => (T$4.dynamicAnddynamicToCloseEvent = dart.constFn(dart_rti.findType("html|CloseEvent(@,@)")))(),
    dynamicToCloseEvent: () => (T$4.dynamicToCloseEvent = dart.constFn(dart_rti.findType("html|CloseEvent(@)")))(),
    StringNToComment: () => (T$4.StringNToComment = dart.constFn(dart_rti.findType("html|Comment([core|String?])")))(),
    VoidToComment: () => (T$4.VoidToComment = dart.constFn(dart_rti.findType("html|Comment()")))(),
    CompositionEvent: () => (T$4.CompositionEvent = dart.constFn(dart_rti.findType("html|CompositionEvent")))(),
    UIEvent: () => (T$4.UIEvent = dart.constFn(dart_rti.findType("html|UIEvent")))(),
    String__ToUIEvent: () => (T$4.String__ToUIEvent = dart.constFn(dart_rti.findType("html|UIEvent(core|String{canBubble:core|bool,cancelable:core|bool,detail:core|int,view:html|Window?})")))(),
    StringAndMapNToUIEvent: () => (T$4.StringAndMapNToUIEvent = dart.constFn(dart_rti.findType("html|UIEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToUIEvent: () => (T$4.dynamicAnddynamicToUIEvent = dart.constFn(dart_rti.findType("html|UIEvent(@,@)")))(),
    dynamicToUIEvent: () => (T$4.dynamicToUIEvent = dart.constFn(dart_rti.findType("html|UIEvent(@)")))(),
    InputDeviceCapabilitiesN: () => (T$4.InputDeviceCapabilitiesN = dart.constFn(dart_rti.findType("html|InputDeviceCapabilities?")))(),
    WindowBaseN: () => (T$4.WindowBaseN = dart.constFn(dart_rti.findType("html|WindowBase?")))(),
    StringAndboolAndbool__Tovoid: () => (T$4.StringAndboolAndbool__Tovoid = dart.constFn(dart_rti.findType("~(core|String,core|bool,core|bool,html|Window?,core|int)")))(),
    String__ToCompositionEvent: () => (T$4.String__ToCompositionEvent = dart.constFn(dart_rti.findType("html|CompositionEvent(core|String{canBubble:core|bool,cancelable:core|bool,data:core|String?,locale:core|String?,view:html|Window?})")))(),
    StringAndMapNToCompositionEvent: () => (T$4.StringAndMapNToCompositionEvent = dart.constFn(dart_rti.findType("html|CompositionEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToCompositionEvent: () => (T$4.dynamicAnddynamicToCompositionEvent = dart.constFn(dart_rti.findType("html|CompositionEvent(@,@)")))(),
    dynamicToCompositionEvent: () => (T$4.dynamicToCompositionEvent = dart.constFn(dart_rti.findType("html|CompositionEvent(@)")))(),
    StringNAndboolNAndboolN__Tovoid: () => (T$4.StringNAndboolNAndboolN__Tovoid = dart.constFn(dart_rti.findType("~(core|String?,core|bool?,core|bool?,html|Window?,core|String?)")))(),
    ContentElement: () => (T$4.ContentElement = dart.constFn(dart_rti.findType("html|ContentElement")))(),
    VoidToContentElement: () => (T$4.VoidToContentElement = dart.constFn(dart_rti.findType("html|ContentElement()")))(),
    VoidToCookieStore: () => (T$4.VoidToCookieStore = dart.constFn(dart_rti.findType("html|CookieStore()")))(),
    StringAndStringAndMapNToFuture: () => (T$4.StringAndStringAndMapNToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|String,core|String[core|Map<@,@>?])")))(),
    VoidToCoordinates: () => (T$4.VoidToCoordinates = dart.constFn(dart_rti.findType("html|Coordinates()")))(),
    VoidToCredential: () => (T$4.VoidToCredential = dart.constFn(dart_rti.findType("html|Credential()")))(),
    VoidToCredentialUserData: () => (T$4.VoidToCredentialUserData = dart.constFn(dart_rti.findType("html|CredentialUserData()")))(),
    VoidToCredentialsContainer: () => (T$4.VoidToCredentialsContainer = dart.constFn(dart_rti.findType("html|CredentialsContainer()")))(),
    CredentialToFuture: () => (T$4.CredentialToFuture = dart.constFn(dart_rti.findType("async|Future<@>(html|Credential)")))(),
    TypedDataToTypedData: () => (T$4.TypedDataToTypedData = dart.constFn(dart_rti.findType("typed_data|TypedData(typed_data|TypedData)")))(),
    VoidToCrypto: () => (T$4.VoidToCrypto = dart.constFn(dart_rti.findType("html|Crypto()")))(),
    _SubtleCryptoN: () => (T$4._SubtleCryptoN = dart.constFn(dart_rti.findType("html|_SubtleCrypto?")))(),
    VoidToCryptoKey: () => (T$4.VoidToCryptoKey = dart.constFn(dart_rti.findType("html|CryptoKey()")))(),
    VoidToCss: () => (T$4.VoidToCss = dart.constFn(dart_rti.findType("html|Css()")))(),
    _WorkletN: () => (T$4._WorkletN = dart.constFn(dart_rti.findType("html|_Worklet?")))(),
    numToCssUnitValue: () => (T$4.numToCssUnitValue = dart.constFn(dart_rti.findType("html|CssUnitValue(core|num)")))(),
    VoidToCssRule: () => (T$4.VoidToCssRule = dart.constFn(dart_rti.findType("html|CssRule()")))(),
    CssRuleN: () => (T$4.CssRuleN = dart.constFn(dart_rti.findType("html|CssRule?")))(),
    CssStyleSheetN: () => (T$4.CssStyleSheetN = dart.constFn(dart_rti.findType("html|CssStyleSheet?")))(),
    VoidToCssCharsetRule: () => (T$4.VoidToCssCharsetRule = dart.constFn(dart_rti.findType("html|CssCharsetRule()")))(),
    VoidToCssGroupingRule: () => (T$4.VoidToCssGroupingRule = dart.constFn(dart_rti.findType("html|CssGroupingRule()")))(),
    ListNOfCssRule: () => (T$4.ListNOfCssRule = dart.constFn(dart_rti.findType("core|List<html|CssRule>?")))(),
    VoidToCssConditionRule: () => (T$4.VoidToCssConditionRule = dart.constFn(dart_rti.findType("html|CssConditionRule()")))(),
    VoidToCssFontFaceRule: () => (T$4.VoidToCssFontFaceRule = dart.constFn(dart_rti.findType("html|CssFontFaceRule()")))(),
    CssStyleDeclarationN: () => (T$4.CssStyleDeclarationN = dart.constFn(dart_rti.findType("html|CssStyleDeclaration?")))(),
    VoidToCssStyleValue: () => (T$4.VoidToCssStyleValue = dart.constFn(dart_rti.findType("html|CssStyleValue()")))(),
    StringAndStringToObjectN: () => (T$4.StringAndStringToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|String,core|String)")))(),
    VoidToCssResourceValue: () => (T$4.VoidToCssResourceValue = dart.constFn(dart_rti.findType("html|CssResourceValue()")))(),
    VoidToCssImageValue: () => (T$4.VoidToCssImageValue = dart.constFn(dart_rti.findType("html|CssImageValue()")))(),
    VoidToCssImportRule: () => (T$4.VoidToCssImportRule = dart.constFn(dart_rti.findType("html|CssImportRule()")))(),
    MediaListN: () => (T$4.MediaListN = dart.constFn(dart_rti.findType("html|MediaList?")))(),
    VoidToCssKeyframeRule: () => (T$4.VoidToCssKeyframeRule = dart.constFn(dart_rti.findType("html|CssKeyframeRule()")))(),
    VoidToCssKeyframesRule: () => (T$4.VoidToCssKeyframesRule = dart.constFn(dart_rti.findType("html|CssKeyframesRule()")))(),
    intToCssKeyframeRule: () => (T$4.intToCssKeyframeRule = dart.constFn(dart_rti.findType("html|CssKeyframeRule(core|int)")))(),
    StringToCssKeyframeRuleN: () => (T$4.StringToCssKeyframeRuleN = dart.constFn(dart_rti.findType("html|CssKeyframeRule?(core|String)")))(),
    VoidToCssKeywordValue: () => (T$4.VoidToCssKeywordValue = dart.constFn(dart_rti.findType("html|CssKeywordValue()")))(),
    StringToCssKeywordValue: () => (T$4.StringToCssKeywordValue = dart.constFn(dart_rti.findType("html|CssKeywordValue(core|String)")))(),
    dynamicToCssKeywordValue: () => (T$4.dynamicToCssKeywordValue = dart.constFn(dart_rti.findType("html|CssKeywordValue(@)")))(),
    VoidToCssTransformComponent: () => (T$4.VoidToCssTransformComponent = dart.constFn(dart_rti.findType("html|CssTransformComponent()")))(),
    VoidToCssMatrixComponent: () => (T$4.VoidToCssMatrixComponent = dart.constFn(dart_rti.findType("html|CssMatrixComponent()")))(),
    DomMatrixReadOnlyAndMapNToCssMatrixComponent: () => (T$4.DomMatrixReadOnlyAndMapNToCssMatrixComponent = dart.constFn(dart_rti.findType("html|CssMatrixComponent(html|DomMatrixReadOnly[core|Map<@,@>?])")))(),
    dynamicAnddynamicToCssMatrixComponent: () => (T$4.dynamicAnddynamicToCssMatrixComponent = dart.constFn(dart_rti.findType("html|CssMatrixComponent(@,@)")))(),
    dynamicToCssMatrixComponent: () => (T$4.dynamicToCssMatrixComponent = dart.constFn(dart_rti.findType("html|CssMatrixComponent(@)")))(),
    DomMatrixN: () => (T$4.DomMatrixN = dart.constFn(dart_rti.findType("html|DomMatrix?")))(),
    VoidToCssMediaRule: () => (T$4.VoidToCssMediaRule = dart.constFn(dart_rti.findType("html|CssMediaRule()")))(),
    VoidToCssNamespaceRule: () => (T$4.VoidToCssNamespaceRule = dart.constFn(dart_rti.findType("html|CssNamespaceRule()")))(),
    VoidToCssNumericValue: () => (T$4.VoidToCssNumericValue = dart.constFn(dart_rti.findType("html|CssNumericValue()")))(),
    CssNumericValueToCssNumericValue: () => (T$4.CssNumericValueToCssNumericValue = dart.constFn(dart_rti.findType("html|CssNumericValue(html|CssNumericValue)")))(),
    numToCssNumericValue: () => (T$4.numToCssNumericValue = dart.constFn(dart_rti.findType("html|CssNumericValue(core|num)")))(),
    StringToCssNumericValue: () => (T$4.StringToCssNumericValue = dart.constFn(dart_rti.findType("html|CssNumericValue(core|String)")))(),
    VoidToCssPageRule: () => (T$4.VoidToCssPageRule = dart.constFn(dart_rti.findType("html|CssPageRule()")))(),
    VoidToCssPerspective: () => (T$4.VoidToCssPerspective = dart.constFn(dart_rti.findType("html|CssPerspective()")))(),
    CssNumericValueToCssPerspective: () => (T$4.CssNumericValueToCssPerspective = dart.constFn(dart_rti.findType("html|CssPerspective(html|CssNumericValue)")))(),
    dynamicToCssPerspective: () => (T$4.dynamicToCssPerspective = dart.constFn(dart_rti.findType("html|CssPerspective(@)")))(),
    CssNumericValueN: () => (T$4.CssNumericValueN = dart.constFn(dart_rti.findType("html|CssNumericValue?")))(),
    VoidToCssPositionValue: () => (T$4.VoidToCssPositionValue = dart.constFn(dart_rti.findType("html|CssPositionValue()")))(),
    CssNumericValueAndCssNumericValueToCssPositionValue: () => (T$4.CssNumericValueAndCssNumericValueToCssPositionValue = dart.constFn(dart_rti.findType("html|CssPositionValue(html|CssNumericValue,html|CssNumericValue)")))(),
    dynamicAnddynamicToCssPositionValue: () => (T$4.dynamicAnddynamicToCssPositionValue = dart.constFn(dart_rti.findType("html|CssPositionValue(@,@)")))(),
    CssNumericValue: () => (T$4.CssNumericValue = dart.constFn(dart_rti.findType("html|CssNumericValue")))(),
    VoidToCssRotation: () => (T$4.VoidToCssRotation = dart.constFn(dart_rti.findType("html|CssRotation()")))(),
    dynamicAndnumNAndnumN__ToCssRotation: () => (T$4.dynamicAndnumNAndnumN__ToCssRotation = dart.constFn(dart_rti.findType("html|CssRotation(@[core|num?,core|num?,html|CssNumericValue?])")))(),
    dynamicToCssRotation: () => (T$4.dynamicToCssRotation = dart.constFn(dart_rti.findType("html|CssRotation(@)")))(),
    dynamicAnddynamicAnddynamic__ToCssRotation: () => (T$4.dynamicAnddynamicAnddynamic__ToCssRotation = dart.constFn(dart_rti.findType("html|CssRotation(@,@,@,@)")))(),
    VoidToCssScale: () => (T$4.VoidToCssScale = dart.constFn(dart_rti.findType("html|CssScale()")))(),
    numAndnumAndnumNToCssScale: () => (T$4.numAndnumAndnumNToCssScale = dart.constFn(dart_rti.findType("html|CssScale(core|num,core|num[core|num?])")))(),
    dynamicAnddynamicToCssScale: () => (T$4.dynamicAnddynamicToCssScale = dart.constFn(dart_rti.findType("html|CssScale(@,@)")))(),
    dynamicAnddynamicAnddynamicToCssScale: () => (T$4.dynamicAnddynamicAnddynamicToCssScale = dart.constFn(dart_rti.findType("html|CssScale(@,@,@)")))(),
    VoidToCssSkew: () => (T$4.VoidToCssSkew = dart.constFn(dart_rti.findType("html|CssSkew()")))(),
    CssNumericValueAndCssNumericValueToCssSkew: () => (T$4.CssNumericValueAndCssNumericValueToCssSkew = dart.constFn(dart_rti.findType("html|CssSkew(html|CssNumericValue,html|CssNumericValue)")))(),
    dynamicAnddynamicToCssSkew: () => (T$4.dynamicAnddynamicToCssSkew = dart.constFn(dart_rti.findType("html|CssSkew(@,@)")))(),
    VoidToCssStyleDeclaration: () => (T$4.VoidToCssStyleDeclaration = dart.constFn(dart_rti.findType("html|CssStyleDeclaration()")))(),
    StringToCssStyleDeclaration: () => (T$4.StringToCssStyleDeclaration = dart.constFn(dart_rti.findType("html|CssStyleDeclaration(core|String)")))(),
    StringAndStringNAndStringNTovoid: () => (T$4.StringAndStringNAndStringNTovoid = dart.constFn(dart_rti.findType("~(core|String,core|String?[core|String?])")))(),
    ElementToCssStyleDeclaration: () => (T$4.ElementToCssStyleDeclaration = dart.constFn(dart_rti.findType("html|CssStyleDeclaration(html|Element)")))(),
    CssStyleDeclarationTovoid: () => (T$4.CssStyleDeclarationTovoid = dart.constFn(dart_rti.findType("~(html|CssStyleDeclaration)")))(),
    StringAndStringNTovoid: () => (T$4.StringAndStringNTovoid = dart.constFn(dart_rti.findType("~(core|String,core|String?)")))(),
    IterableOfElement: () => (T$4.IterableOfElement = dart.constFn(dart_rti.findType("core|Iterable<html|Element>")))(),
    IterableOfCssStyleDeclaration: () => (T$4.IterableOfCssStyleDeclaration = dart.constFn(dart_rti.findType("core|Iterable<html|CssStyleDeclaration>")))(),
    VoidToCssStyleRule: () => (T$4.VoidToCssStyleRule = dart.constFn(dart_rti.findType("html|CssStyleRule()")))(),
    VoidToStyleSheet: () => (T$4.VoidToStyleSheet = dart.constFn(dart_rti.findType("html|StyleSheet()")))(),
    StyleSheetN: () => (T$4.StyleSheetN = dart.constFn(dart_rti.findType("html|StyleSheet?")))(),
    VoidToCssStyleSheet: () => (T$4.VoidToCssStyleSheet = dart.constFn(dart_rti.findType("html|CssStyleSheet()")))(),
    ListOfCssRule: () => (T$4.ListOfCssRule = dart.constFn(dart_rti.findType("core|List<html|CssRule>")))(),
    StringNAndStringNAndintNToint: () => (T$4.StringNAndStringNAndintNToint = dart.constFn(dart_rti.findType("core|int(core|String?,core|String?[core|int?])")))(),
    StringAndintNToint: () => (T$4.StringAndintNToint = dart.constFn(dart_rti.findType("core|int(core|String[core|int?])")))(),
    intNTovoid: () => (T$4.intNTovoid = dart.constFn(dart_rti.findType("~(core|int?)")))(),
    VoidToCssSupportsRule: () => (T$4.VoidToCssSupportsRule = dart.constFn(dart_rti.findType("html|CssSupportsRule()")))(),
    ListOfCssTransformComponent: () => (T$4.ListOfCssTransformComponent = dart.constFn(dart_rti.findType("core|List<html|CssTransformComponent>")))(),
    VoidToCssTransformValue: () => (T$4.VoidToCssTransformValue = dart.constFn(dart_rti.findType("html|CssTransformValue()")))(),
    ListNOfCssTransformComponentToCssTransformValue: () => (T$4.ListNOfCssTransformComponentToCssTransformValue = dart.constFn(dart_rti.findType("html|CssTransformValue([core|List<html|CssTransformComponent>?])")))(),
    dynamicToCssTransformValue: () => (T$4.dynamicToCssTransformValue = dart.constFn(dart_rti.findType("html|CssTransformValue(@)")))(),
    intToCssTransformComponent: () => (T$4.intToCssTransformComponent = dart.constFn(dart_rti.findType("html|CssTransformComponent(core|int)")))(),
    VoidToDomMatrix: () => (T$4.VoidToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix()")))(),
    VoidToCssTranslation: () => (T$4.VoidToCssTranslation = dart.constFn(dart_rti.findType("html|CssTranslation()")))(),
    CssNumericValueAndCssNumericValueAndCssNumericValueNToCssTranslation: () => (T$4.CssNumericValueAndCssNumericValueAndCssNumericValueNToCssTranslation = dart.constFn(dart_rti.findType("html|CssTranslation(html|CssNumericValue,html|CssNumericValue[html|CssNumericValue?])")))(),
    dynamicAnddynamicToCssTranslation: () => (T$4.dynamicAnddynamicToCssTranslation = dart.constFn(dart_rti.findType("html|CssTranslation(@,@)")))(),
    dynamicAnddynamicAnddynamicToCssTranslation: () => (T$4.dynamicAnddynamicAnddynamicToCssTranslation = dart.constFn(dart_rti.findType("html|CssTranslation(@,@,@)")))(),
    VoidToCssUnitValue: () => (T$4.VoidToCssUnitValue = dart.constFn(dart_rti.findType("html|CssUnitValue()")))(),
    numAndStringToCssUnitValue: () => (T$4.numAndStringToCssUnitValue = dart.constFn(dart_rti.findType("html|CssUnitValue(core|num,core|String)")))(),
    dynamicAnddynamicToCssUnitValue: () => (T$4.dynamicAnddynamicToCssUnitValue = dart.constFn(dart_rti.findType("html|CssUnitValue(@,@)")))(),
    VoidToCssUnparsedValue: () => (T$4.VoidToCssUnparsedValue = dart.constFn(dart_rti.findType("html|CssUnparsedValue()")))(),
    VoidToCssVariableReferenceValue: () => (T$4.VoidToCssVariableReferenceValue = dart.constFn(dart_rti.findType("html|CssVariableReferenceValue()")))(),
    CssUnparsedValueN: () => (T$4.CssUnparsedValueN = dart.constFn(dart_rti.findType("html|CssUnparsedValue?")))(),
    VoidToCssViewportRule: () => (T$4.VoidToCssViewportRule = dart.constFn(dart_rti.findType("html|CssViewportRule()")))(),
    VoidToCssurlImageValue: () => (T$4.VoidToCssurlImageValue = dart.constFn(dart_rti.findType("html|CssurlImageValue()")))(),
    StringToCssurlImageValue: () => (T$4.StringToCssurlImageValue = dart.constFn(dart_rti.findType("html|CssurlImageValue(core|String)")))(),
    dynamicToCssurlImageValue: () => (T$4.dynamicToCssurlImageValue = dart.constFn(dart_rti.findType("html|CssurlImageValue(@)")))(),
    VoidToCustomElementRegistry: () => (T$4.VoidToCustomElementRegistry = dart.constFn(dart_rti.findType("html|CustomElementRegistry()")))(),
    StringAndObjectAndMapNTovoid: () => (T$4.StringAndObjectAndMapNTovoid = dart.constFn(dart_rti.findType("~(core|String,core|Object[core|Map<@,@>?])")))(),
    StringToObjectN: () => (T$4.StringToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|String)")))(),
    CustomEvent: () => (T$4.CustomEvent = dart.constFn(dart_rti.findType("html|CustomEvent")))(),
    String__ToCustomEvent: () => (T$4.String__ToCustomEvent = dart.constFn(dart_rti.findType("html|CustomEvent(core|String{canBubble:core|bool,cancelable:core|bool,detail:core|Object?})")))(),
    StringAndMapNToCustomEvent: () => (T$4.StringAndMapNToCustomEvent = dart.constFn(dart_rti.findType("html|CustomEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToCustomEvent: () => (T$4.dynamicAnddynamicToCustomEvent = dart.constFn(dart_rti.findType("html|CustomEvent(@,@)")))(),
    dynamicToCustomEvent: () => (T$4.dynamicToCustomEvent = dart.constFn(dart_rti.findType("html|CustomEvent(@)")))(),
    StringAndboolNAndboolN__Tovoid: () => (T$4.StringAndboolNAndboolN__Tovoid = dart.constFn(dart_rti.findType("~(core|String[core|bool?,core|bool?,core|Object?])")))(),
    VoidToDListElement: () => (T$4.VoidToDListElement = dart.constFn(dart_rti.findType("html|DListElement()")))(),
    VoidToDataElement: () => (T$4.VoidToDataElement = dart.constFn(dart_rti.findType("html|DataElement()")))(),
    DataListElement: () => (T$4.DataListElement = dart.constFn(dart_rti.findType("html|DataListElement")))(),
    VoidToDataListElement: () => (T$4.VoidToDataListElement = dart.constFn(dart_rti.findType("html|DataListElement()")))(),
    VoidToDataTransfer: () => (T$4.VoidToDataTransfer = dart.constFn(dart_rti.findType("html|DataTransfer()")))(),
    ListNOfFile: () => (T$4.ListNOfFile = dart.constFn(dart_rti.findType("core|List<html|File>?")))(),
    DataTransferItemListN: () => (T$4.DataTransferItemListN = dart.constFn(dart_rti.findType("html|DataTransferItemList?")))(),
    StringNTovoid$1: () => (T$4.StringNTovoid$1 = dart.constFn(dart_rti.findType("~([core|String?])")))(),
    ElementAndintAndintTovoid: () => (T$4.ElementAndintAndintTovoid = dart.constFn(dart_rti.findType("~(html|Element,core|int,core|int)")))(),
    Entry: () => (T$4.Entry = dart.constFn(dart_rti.findType("html|Entry")))(),
    VoidToEntry: () => (T$4.VoidToEntry = dart.constFn(dart_rti.findType("html|Entry()")))(),
    VoidToDataTransferItem: () => (T$4.VoidToDataTransferItem = dart.constFn(dart_rti.findType("html|DataTransferItem()")))(),
    VoidToFileN: () => (T$4.VoidToFileN = dart.constFn(dart_rti.findType("html|File?()")))(),
    VoidToEntryN: () => (T$4.VoidToEntryN = dart.constFn(dart_rti.findType("html|Entry?()")))(),
    VoidToDataTransferItemList: () => (T$4.VoidToDataTransferItemList = dart.constFn(dart_rti.findType("html|DataTransferItemList()")))(),
    dynamicAndStringNToDataTransferItemN: () => (T$4.dynamicAndStringNToDataTransferItemN = dart.constFn(dart_rti.findType("html|DataTransferItem?(@[core|String?])")))(),
    StringAndStringToDataTransferItemN: () => (T$4.StringAndStringToDataTransferItemN = dart.constFn(dart_rti.findType("html|DataTransferItem?(core|String,core|String)")))(),
    FileToDataTransferItemN: () => (T$4.FileToDataTransferItemN = dart.constFn(dart_rti.findType("html|DataTransferItem?(html|File)")))(),
    intToDataTransferItem: () => (T$4.intToDataTransferItem = dart.constFn(dart_rti.findType("html|DataTransferItem(core|int)")))(),
    DedicatedWorkerGlobalScope: () => (T$4.DedicatedWorkerGlobalScope = dart.constFn(dart_rti.findType("html|DedicatedWorkerGlobalScope")))(),
    VoidToWorkerGlobalScope: () => (T$4.VoidToWorkerGlobalScope = dart.constFn(dart_rti.findType("html|WorkerGlobalScope()")))(),
    CacheStorageN: () => (T$4.CacheStorageN = dart.constFn(dart_rti.findType("html|CacheStorage?")))(),
    CryptoN: () => (T$4.CryptoN = dart.constFn(dart_rti.findType("html|Crypto?")))(),
    IdbFactoryN: () => (T$4.IdbFactoryN = dart.constFn(dart_rti.findType("indexed_db|IdbFactory?")))(),
    _WorkerLocation: () => (T$4._WorkerLocation = dart.constFn(dart_rti.findType("html|_WorkerLocation")))(),
    _WorkerNavigator: () => (T$4._WorkerNavigator = dart.constFn(dart_rti.findType("html|_WorkerNavigator")))(),
    WorkerPerformanceN: () => (T$4.WorkerPerformanceN = dart.constFn(dart_rti.findType("html|WorkerPerformance?")))(),
    WorkerGlobalScope: () => (T$4.WorkerGlobalScope = dart.constFn(dart_rti.findType("html|WorkerGlobalScope")))(),
    StringAndintNAndObjectNToint: () => (T$4.StringAndintNAndObjectNToint = dart.constFn(dart_rti.findType("core|int(core|String[core|int?,core|Object?])")))(),
    intNTovoid$1: () => (T$4.intNTovoid$1 = dart.constFn(dart_rti.findType("~([core|int?])")))(),
    ObjectAndintNToint: () => (T$4.ObjectAndintNToint = dart.constFn(dart_rti.findType("core|int(core|Object[core|int?])")))(),
    VoidToDedicatedWorkerGlobalScope: () => (T$4.VoidToDedicatedWorkerGlobalScope = dart.constFn(dart_rti.findType("html|DedicatedWorkerGlobalScope()")))(),
    dynamicAndListNOfObjectTovoid: () => (T$4.dynamicAndListNOfObjectTovoid = dart.constFn(dart_rti.findType("~(@[core|List<core|Object>?])")))(),
    dynamicAndListOfObjectTovoid: () => (T$4.dynamicAndListOfObjectTovoid = dart.constFn(dart_rti.findType("~(@,core|List<core|Object>)")))(),
    intAndintAndFn__Tovoid: () => (T$4.intAndintAndFn__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|int[~(html|FileSystem)?,~(html|DomException)?])")))(),
    intAndintTo_DOMFileSystemSync: () => (T$4.intAndintTo_DOMFileSystemSync = dart.constFn(dart_rti.findType("html|_DOMFileSystemSync(core|int,core|int)")))(),
    StringTo_EntrySync: () => (T$4.StringTo_EntrySync = dart.constFn(dart_rti.findType("html|_EntrySync(core|String)")))(),
    StringAndFnAndFnTovoid: () => (T$4.StringAndFnAndFnTovoid = dart.constFn(dart_rti.findType("~(core|String,~(html|Entry)[~(html|DomException)?])")))(),
    VoidToDeprecatedStorageInfo: () => (T$4.VoidToDeprecatedStorageInfo = dart.constFn(dart_rti.findType("html|DeprecatedStorageInfo()")))(),
    intAndFnAndFnTovoid: () => (T$4.intAndFnAndFnTovoid = dart.constFn(dart_rti.findType("~(core|int[~(core|int,core|int)?,~(html|DomError)?])")))(),
    intAndintAndFn__Tovoid$1: () => (T$4.intAndintAndFn__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|int,core|int[~(core|int)?,~(html|DomError)?])")))(),
    VoidToDeprecatedStorageQuota: () => (T$4.VoidToDeprecatedStorageQuota = dart.constFn(dart_rti.findType("html|DeprecatedStorageQuota()")))(),
    FnAndFnTovoid: () => (T$4.FnAndFnTovoid = dart.constFn(dart_rti.findType("~(~(core|int,core|int)[~(html|DomError)?])")))(),
    intAndFnAndFnTovoid$1: () => (T$4.intAndFnAndFnTovoid$1 = dart.constFn(dart_rti.findType("~(core|int[~(core|int)?,~(html|DomError)?])")))(),
    VoidToReportBody: () => (T$4.VoidToReportBody = dart.constFn(dart_rti.findType("html|ReportBody()")))(),
    VoidToDeprecationReport: () => (T$4.VoidToDeprecationReport = dart.constFn(dart_rti.findType("html|DeprecationReport()")))(),
    DetailsElement: () => (T$4.DetailsElement = dart.constFn(dart_rti.findType("html|DetailsElement")))(),
    VoidToDetailsElement: () => (T$4.VoidToDetailsElement = dart.constFn(dart_rti.findType("html|DetailsElement()")))(),
    VoidToDetectedBarcode: () => (T$4.VoidToDetectedBarcode = dart.constFn(dart_rti.findType("html|DetectedBarcode()")))(),
    RectangleNOfnum: () => (T$4.RectangleNOfnum = dart.constFn(dart_rti.findType("math|Rectangle<core|num>?")))(),
    VoidToDetectedFace: () => (T$4.VoidToDetectedFace = dart.constFn(dart_rti.findType("html|DetectedFace()")))(),
    VoidToDetectedText: () => (T$4.VoidToDetectedText = dart.constFn(dart_rti.findType("html|DetectedText()")))(),
    VoidToDeviceAcceleration: () => (T$4.VoidToDeviceAcceleration = dart.constFn(dart_rti.findType("html|DeviceAcceleration()")))(),
    VoidToDeviceMotionEvent: () => (T$4.VoidToDeviceMotionEvent = dart.constFn(dart_rti.findType("html|DeviceMotionEvent()")))(),
    StringAndMapNToDeviceMotionEvent: () => (T$4.StringAndMapNToDeviceMotionEvent = dart.constFn(dart_rti.findType("html|DeviceMotionEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToDeviceMotionEvent: () => (T$4.dynamicAnddynamicToDeviceMotionEvent = dart.constFn(dart_rti.findType("html|DeviceMotionEvent(@,@)")))(),
    dynamicToDeviceMotionEvent: () => (T$4.dynamicToDeviceMotionEvent = dart.constFn(dart_rti.findType("html|DeviceMotionEvent(@)")))(),
    DeviceAccelerationN: () => (T$4.DeviceAccelerationN = dart.constFn(dart_rti.findType("html|DeviceAcceleration?")))()
  };
  var T$5 = {
    DeviceRotationRateN: () => (T$5.DeviceRotationRateN = dart.constFn(dart_rti.findType("html|DeviceRotationRate?")))(),
    VoidToDeviceOrientationEvent: () => (T$5.VoidToDeviceOrientationEvent = dart.constFn(dart_rti.findType("html|DeviceOrientationEvent()")))(),
    StringAndMapNToDeviceOrientationEvent: () => (T$5.StringAndMapNToDeviceOrientationEvent = dart.constFn(dart_rti.findType("html|DeviceOrientationEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToDeviceOrientationEvent: () => (T$5.dynamicAnddynamicToDeviceOrientationEvent = dart.constFn(dart_rti.findType("html|DeviceOrientationEvent(@,@)")))(),
    dynamicToDeviceOrientationEvent: () => (T$5.dynamicToDeviceOrientationEvent = dart.constFn(dart_rti.findType("html|DeviceOrientationEvent(@)")))(),
    VoidToDeviceRotationRate: () => (T$5.VoidToDeviceRotationRate = dart.constFn(dart_rti.findType("html|DeviceRotationRate()")))(),
    VoidToDialogElement: () => (T$5.VoidToDialogElement = dart.constFn(dart_rti.findType("html|DialogElement()")))(),
    EntryTovoid: () => (T$5.EntryTovoid = dart.constFn(dart_rti.findType("~(html|Entry)")))(),
    DomExceptionTovoid: () => (T$5.DomExceptionTovoid = dart.constFn(dart_rti.findType("~(html|DomException)")))(),
    Metadata: () => (T$5.Metadata = dart.constFn(dart_rti.findType("html|Metadata")))(),
    MetadataTovoid: () => (T$5.MetadataTovoid = dart.constFn(dart_rti.findType("~(html|Metadata)")))(),
    FileSystemN: () => (T$5.FileSystemN = dart.constFn(dart_rti.findType("html|FileSystem?")))(),
    DirectoryEntryAndStringNAndFn__Tovoid: () => (T$5.DirectoryEntryAndStringNAndFn__Tovoid = dart.constFn(dart_rti.findType("~(html|DirectoryEntry[core|String?,~(html|Entry)?,~(html|DomException)?])")))(),
    DirectoryEntry__ToFutureOfEntry: () => (T$5.DirectoryEntry__ToFutureOfEntry = dart.constFn(dart_rti.findType("async|Future<html|Entry>(html|DirectoryEntry{name:core|String?})")))(),
    FnAndFnTovoid$1: () => (T$5.FnAndFnTovoid$1 = dart.constFn(dart_rti.findType("~(~(html|Metadata)[~(html|DomException)?])")))(),
    VoidToFutureOfMetadata: () => (T$5.VoidToFutureOfMetadata = dart.constFn(dart_rti.findType("async|Future<html|Metadata>()")))(),
    FnAndFnTovoid$2: () => (T$5.FnAndFnTovoid$2 = dart.constFn(dart_rti.findType("~([~(html|Entry)?,~(html|DomException)?])")))(),
    VoidToFutureOfEntry: () => (T$5.VoidToFutureOfEntry = dart.constFn(dart_rti.findType("async|Future<html|Entry>()")))(),
    FnAndFnTovoid$3: () => (T$5.FnAndFnTovoid$3 = dart.constFn(dart_rti.findType("~(~()[~(html|DomException)?])")))(),
    String__ToFutureOfEntry: () => (T$5.String__ToFutureOfEntry = dart.constFn(dart_rti.findType("async|Future<html|Entry>(core|String{exclusive:core|bool})")))(),
    VoidToDirectoryReader: () => (T$5.VoidToDirectoryReader = dart.constFn(dart_rti.findType("html|DirectoryReader()")))(),
    StringToFutureOfEntry: () => (T$5.StringToFutureOfEntry = dart.constFn(dart_rti.findType("async|Future<html|Entry>(core|String)")))(),
    VoidToDirectoryEntry: () => (T$5.VoidToDirectoryEntry = dart.constFn(dart_rti.findType("html|DirectoryEntry()")))(),
    StringNAndMapNAndFn__Tovoid: () => (T$5.StringNAndMapNAndFn__Tovoid = dart.constFn(dart_rti.findType("~(core|String?[core|Map<@,@>?,~(html|Entry)?,~(html|DomException)?])")))(),
    dynamicAnddynamicAndFn__Tovoid: () => (T$5.dynamicAnddynamicAndFn__Tovoid = dart.constFn(dart_rti.findType("~(@,@,~(html|Entry)?,~(html|DomException)?)")))(),
    dynamicAnddynamicAndFnTovoid: () => (T$5.dynamicAnddynamicAndFnTovoid = dart.constFn(dart_rti.findType("~(@,@,~(html|Entry)?)")))(),
    StringN__ToFutureOfEntry: () => (T$5.StringN__ToFutureOfEntry = dart.constFn(dart_rti.findType("async|Future<html|Entry>(core|String?{options:core|Map<@,@>?})")))(),
    ListOfEntry: () => (T$5.ListOfEntry = dart.constFn(dart_rti.findType("core|List<html|Entry>")))(),
    ListTovoid: () => (T$5.ListTovoid = dart.constFn(dart_rti.findType("~(core|List<@>)")))(),
    FnAndFnTovoid$4: () => (T$5.FnAndFnTovoid$4 = dart.constFn(dart_rti.findType("~(~(core|List<@>)[~(html|DomException)?])")))(),
    VoidToFutureOfListOfEntry: () => (T$5.VoidToFutureOfListOfEntry = dart.constFn(dart_rti.findType("async|Future<core|List<html|Entry>>()")))(),
    VoidToDivElement: () => (T$5.VoidToDivElement = dart.constFn(dart_rti.findType("html|DivElement()")))(),
    VoidToDocument: () => (T$5.VoidToDocument = dart.constFn(dart_rti.findType("html|Document()")))(),
    HtmlElementN: () => (T$5.HtmlElementN = dart.constFn(dart_rti.findType("html|HtmlElement?")))(),
    ScriptElementN: () => (T$5.ScriptElementN = dart.constFn(dart_rti.findType("html|ScriptElement?")))(),
    HeadElementN: () => (T$5.HeadElementN = dart.constFn(dart_rti.findType("html|HeadElement?")))(),
    DomImplementationN: () => (T$5.DomImplementationN = dart.constFn(dart_rti.findType("html|DomImplementation?")))(),
    SvgSvgElementN: () => (T$5.SvgSvgElementN = dart.constFn(dart_rti.findType("svg|SvgSvgElement?")))(),
    DocumentTimelineN: () => (T$5.DocumentTimelineN = dart.constFn(dart_rti.findType("html|DocumentTimeline?")))(),
    intNAndintNToRange: () => (T$5.intNAndintNToRange = dart.constFn(dart_rti.findType("html|Range(core|int?,core|int?)")))(),
    VoidToDocumentFragment: () => (T$5.VoidToDocumentFragment = dart.constFn(dart_rti.findType("html|DocumentFragment()")))(),
    StringAnddynamicToElement: () => (T$5.StringAnddynamicToElement = dart.constFn(dart_rti.findType("html|Element(core|String[@])")))(),
    StringNAndStringAnddynamicToElement: () => (T$5.StringNAndStringAnddynamicToElement = dart.constFn(dart_rti.findType("html|Element(core|String?,core|String[@])")))(),
    StringToEvent: () => (T$5.StringToEvent = dart.constFn(dart_rti.findType("html|Event(core|String)")))(),
    VoidToRange: () => (T$5.VoidToRange = dart.constFn(dart_rti.findType("html|Range()")))(),
    WindowAndEventTargetAndint__ToTouch: () => (T$5.WindowAndEventTargetAndint__ToTouch = dart.constFn(dart_rti.findType("html|Touch(html|Window,html|EventTarget,core|int,core|num,core|num,core|num,core|num[core|num?,core|num?,core|num?,core|num?])")))(),
    WindowAnddynamicAnddynamic__ToTouch: () => (T$5.WindowAnddynamicAnddynamic__ToTouch = dart.constFn(dart_rti.findType("html|Touch(html|Window,@,@,@,@,@,@,@,@,@,@)")))(),
    WindowAnddynamicAnddynamic__ToTouch$1: () => (T$5.WindowAnddynamicAnddynamic__ToTouch$1 = dart.constFn(dart_rti.findType("html|Touch(html|Window,@,@,@,@,@,@,@,@,@)")))(),
    WindowAnddynamicAnddynamic__ToTouch$2: () => (T$5.WindowAnddynamicAnddynamic__ToTouch$2 = dart.constFn(dart_rti.findType("html|Touch(html|Window,@,@,@,@,@,@,@,@)")))(),
    WindowAnddynamicAnddynamic__ToTouch$3: () => (T$5.WindowAnddynamicAnddynamic__ToTouch$3 = dart.constFn(dart_rti.findType("html|Touch(html|Window,@,@,@,@,@,@,@)")))(),
    WindowAnddynamicAnddynamic__ToTouch$4: () => (T$5.WindowAnddynamicAnddynamic__ToTouch$4 = dart.constFn(dart_rti.findType("html|Touch(html|Window,@,@,@,@,@,@)")))(),
    TouchToTouchList: () => (T$5.TouchToTouchList = dart.constFn(dart_rti.findType("html|TouchList(html|Touch)")))(),
    StringAndboolNAndStringNTobool: () => (T$5.StringAndboolNAndStringNTobool = dart.constFn(dart_rti.findType("core|bool(core|String[core|bool?,core|String?])")))(),
    NodeAndboolNToNode: () => (T$5.NodeAndboolNToNode = dart.constFn(dart_rti.findType("html|Node(html|Node[core|bool?])")))(),
    ListNOfStyleSheet: () => (T$5.ListNOfStyleSheet = dart.constFn(dart_rti.findType("core|List<html|StyleSheet>?")))(),
    intAndintToElementN: () => (T$5.intAndintToElementN = dart.constFn(dart_rti.findType("html|Element?(core|int,core|int)")))(),
    intAndintToListOfElement: () => (T$5.intAndintToListOfElement = dart.constFn(dart_rti.findType("core|List<html|Element>(core|int,core|int)")))(),
    FontFaceSetN: () => (T$5.FontFaceSetN = dart.constFn(dart_rti.findType("html|FontFaceSet?")))(),
    StreamOfMouseEvent: () => (T$5.StreamOfMouseEvent = dart.constFn(dart_rti.findType("async|Stream<html|MouseEvent>")))(),
    StreamOfClipboardEvent: () => (T$5.StreamOfClipboardEvent = dart.constFn(dart_rti.findType("async|Stream<html|ClipboardEvent>")))(),
    StreamOfKeyboardEvent: () => (T$5.StreamOfKeyboardEvent = dart.constFn(dart_rti.findType("async|Stream<html|KeyboardEvent>")))(),
    StreamOfWheelEvent: () => (T$5.StreamOfWheelEvent = dart.constFn(dart_rti.findType("async|Stream<html|WheelEvent>")))(),
    StreamOfSecurityPolicyViolationEvent: () => (T$5.StreamOfSecurityPolicyViolationEvent = dart.constFn(dart_rti.findType("async|Stream<html|SecurityPolicyViolationEvent>")))(),
    StreamOfTouchEvent: () => (T$5.StreamOfTouchEvent = dart.constFn(dart_rti.findType("async|Stream<html|TouchEvent>")))(),
    StringAndStringTodynamic: () => (T$5.StringAndStringTodynamic = dart.constFn(dart_rti.findType("@(core|String,core|String)")))(),
    StringAndStringAndStringNToElement: () => (T$5.StringAndStringAndStringNToElement = dart.constFn(dart_rti.findType("html|Element(core|String,core|String[core|String?])")))(),
    NodeAndintNAndNodeFilterNToNodeIterator: () => (T$5.NodeAndintNAndNodeFilterNToNodeIterator = dart.constFn(dart_rti.findType("html|NodeIterator(html|Node[core|int?,html|NodeFilter?])")))(),
    NodeAndintNAndNodeFilterNToTreeWalker: () => (T$5.NodeAndintNAndNodeFilterNToTreeWalker = dart.constFn(dart_rti.findType("html|TreeWalker(html|Node[core|int?,html|NodeFilter?])")))(),
    EventStreamProviderOfSecurityPolicyViolationEvent: () => (T$5.EventStreamProviderOfSecurityPolicyViolationEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|SecurityPolicyViolationEvent>")))(),
    SecurityPolicyViolationEventL: () => (T$5.SecurityPolicyViolationEventL = dart.constFn(dart_rti.findType("html|SecurityPolicyViolationEvent*")))(),
    EventStreamProviderOfSecurityPolicyViolationEventL: () => (T$5.EventStreamProviderOfSecurityPolicyViolationEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|SecurityPolicyViolationEvent*>")))(),
    HtmlCollection: () => (T$5.HtmlCollection = dart.constFn(dart_rti.findType("html|HtmlCollection")))(),
    ListNOfElement: () => (T$5.ListNOfElement = dart.constFn(dart_rti.findType("core|List<html|Element>?")))(),
    VoidToDocumentOrShadowRoot: () => (T$5.VoidToDocumentOrShadowRoot = dart.constFn(dart_rti.findType("html|DocumentOrShadowRoot()")))(),
    VoidToSelectionN: () => (T$5.VoidToSelectionN = dart.constFn(dart_rti.findType("html|Selection?()")))(),
    VoidToDocumentTimeline: () => (T$5.VoidToDocumentTimeline = dart.constFn(dart_rti.findType("html|DocumentTimeline()")))(),
    MapNToDocumentTimeline: () => (T$5.MapNToDocumentTimeline = dart.constFn(dart_rti.findType("html|DocumentTimeline([core|Map<@,@>?])")))(),
    dynamicToDocumentTimeline: () => (T$5.dynamicToDocumentTimeline = dart.constFn(dart_rti.findType("html|DocumentTimeline(@)")))(),
    VoidToDomError: () => (T$5.VoidToDomError = dart.constFn(dart_rti.findType("html|DomError()")))(),
    StringAndStringNToDomError: () => (T$5.StringAndStringNToDomError = dart.constFn(dart_rti.findType("html|DomError(core|String[core|String?])")))(),
    dynamicAnddynamicToDomError: () => (T$5.dynamicAnddynamicToDomError = dart.constFn(dart_rti.findType("html|DomError(@,@)")))(),
    dynamicToDomError: () => (T$5.dynamicToDomError = dart.constFn(dart_rti.findType("html|DomError(@)")))(),
    VoidToDomException: () => (T$5.VoidToDomException = dart.constFn(dart_rti.findType("html|DomException()")))(),
    VoidToDomImplementation: () => (T$5.VoidToDomImplementation = dart.constFn(dart_rti.findType("html|DomImplementation()")))(),
    StringNAndStringAnd_DocumentTypeNToXmlDocument: () => (T$5.StringNAndStringAnd_DocumentTypeNToXmlDocument = dart.constFn(dart_rti.findType("html|XmlDocument(core|String?,core|String,html|_DocumentType?)")))(),
    StringAndStringAndStringTo_DocumentType: () => (T$5.StringAndStringAndStringTo_DocumentType = dart.constFn(dart_rti.findType("html|_DocumentType(core|String,core|String,core|String)")))(),
    StringNToHtmlDocument: () => (T$5.StringNToHtmlDocument = dart.constFn(dart_rti.findType("html|HtmlDocument([core|String?])")))(),
    VoidToDomIterator: () => (T$5.VoidToDomIterator = dart.constFn(dart_rti.findType("html|DomIterator()")))(),
    ObjectNToObjectN$1: () => (T$5.ObjectNToObjectN$1 = dart.constFn(dart_rti.findType("core|Object?([core|Object?])")))(),
    VoidToDomMatrixReadOnly: () => (T$5.VoidToDomMatrixReadOnly = dart.constFn(dart_rti.findType("html|DomMatrixReadOnly()")))(),
    ObjectNToDomMatrixReadOnly: () => (T$5.ObjectNToDomMatrixReadOnly = dart.constFn(dart_rti.findType("html|DomMatrixReadOnly([core|Object?])")))(),
    dynamicToDomMatrixReadOnly: () => (T$5.dynamicToDomMatrixReadOnly = dart.constFn(dart_rti.findType("html|DomMatrixReadOnly(@)")))(),
    Float32ListToDomMatrixReadOnly: () => (T$5.Float32ListToDomMatrixReadOnly = dart.constFn(dart_rti.findType("html|DomMatrixReadOnly(typed_data|Float32List)")))(),
    Float64ListToDomMatrixReadOnly: () => (T$5.Float64ListToDomMatrixReadOnly = dart.constFn(dart_rti.findType("html|DomMatrixReadOnly(typed_data|Float64List)")))(),
    MapNToDomMatrixReadOnly: () => (T$5.MapNToDomMatrixReadOnly = dart.constFn(dart_rti.findType("html|DomMatrixReadOnly([core|Map<@,@>?])")))(),
    MapNToDomMatrix: () => (T$5.MapNToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix([core|Map<@,@>?])")))(),
    dynamicToDomMatrix: () => (T$5.dynamicToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix(@)")))(),
    numNAndnumNAndnumNToDomMatrix: () => (T$5.numNAndnumNAndnumNToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix([core|num?,core|num?,core|num?])")))(),
    numNAndnumNAndnumN__ToDomMatrix: () => (T$5.numNAndnumNAndnumN__ToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix([core|num?,core|num?,core|num?,core|num?])")))(),
    numNAndnumNToDomMatrix: () => (T$5.numNAndnumNToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix([core|num?,core|num?])")))(),
    numNAndnumNAndnumN__ToDomMatrix$1: () => (T$5.numNAndnumNAndnumN__ToDomMatrix$1 = dart.constFn(dart_rti.findType("html|DomMatrix([core|num?,core|num?,core|num?,core|num?,core|num?,core|num?])")))(),
    numNToDomMatrix: () => (T$5.numNToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix([core|num?])")))(),
    MapNToDomPoint: () => (T$5.MapNToDomPoint = dart.constFn(dart_rti.findType("html|DomPoint([core|Map<@,@>?])")))(),
    dynamicToDomPoint: () => (T$5.dynamicToDomPoint = dart.constFn(dart_rti.findType("html|DomPoint(@)")))(),
    VoidToDomPoint: () => (T$5.VoidToDomPoint = dart.constFn(dart_rti.findType("html|DomPoint()")))(),
    ObjectNToDomMatrix: () => (T$5.ObjectNToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix([core|Object?])")))(),
    Float32ListToDomMatrix: () => (T$5.Float32ListToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix(typed_data|Float32List)")))(),
    Float64ListToDomMatrix: () => (T$5.Float64ListToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix(typed_data|Float64List)")))(),
    StringToDomMatrix: () => (T$5.StringToDomMatrix = dart.constFn(dart_rti.findType("html|DomMatrix(core|String)")))(),
    VoidToDomParser: () => (T$5.VoidToDomParser = dart.constFn(dart_rti.findType("html|DomParser()")))(),
    StringAndStringToDocument: () => (T$5.StringAndStringToDocument = dart.constFn(dart_rti.findType("html|Document(core|String,core|String)")))(),
    VoidToDomPointReadOnly: () => (T$5.VoidToDomPointReadOnly = dart.constFn(dart_rti.findType("html|DomPointReadOnly()")))(),
    numNAndnumNAndnumN__ToDomPointReadOnly: () => (T$5.numNAndnumNAndnumN__ToDomPointReadOnly = dart.constFn(dart_rti.findType("html|DomPointReadOnly([core|num?,core|num?,core|num?,core|num?])")))(),
    dynamicAnddynamicAnddynamic__ToDomPointReadOnly: () => (T$5.dynamicAnddynamicAnddynamic__ToDomPointReadOnly = dart.constFn(dart_rti.findType("html|DomPointReadOnly(@,@,@,@)")))(),
    dynamicAnddynamicAnddynamicToDomPointReadOnly: () => (T$5.dynamicAnddynamicAnddynamicToDomPointReadOnly = dart.constFn(dart_rti.findType("html|DomPointReadOnly(@,@,@)")))(),
    dynamicAnddynamicToDomPointReadOnly: () => (T$5.dynamicAnddynamicToDomPointReadOnly = dart.constFn(dart_rti.findType("html|DomPointReadOnly(@,@)")))(),
    dynamicToDomPointReadOnly: () => (T$5.dynamicToDomPointReadOnly = dart.constFn(dart_rti.findType("html|DomPointReadOnly(@)")))(),
    MapNToDomPointReadOnly: () => (T$5.MapNToDomPointReadOnly = dart.constFn(dart_rti.findType("html|DomPointReadOnly([core|Map<@,@>?])")))(),
    numNAndnumNAndnumN__ToDomPoint: () => (T$5.numNAndnumNAndnumN__ToDomPoint = dart.constFn(dart_rti.findType("html|DomPoint([core|num?,core|num?,core|num?,core|num?])")))(),
    dynamicAnddynamicAnddynamic__ToDomPoint: () => (T$5.dynamicAnddynamicAnddynamic__ToDomPoint = dart.constFn(dart_rti.findType("html|DomPoint(@,@,@,@)")))(),
    dynamicAnddynamicAnddynamicToDomPoint: () => (T$5.dynamicAnddynamicAnddynamicToDomPoint = dart.constFn(dart_rti.findType("html|DomPoint(@,@,@)")))(),
    dynamicAnddynamicToDomPoint: () => (T$5.dynamicAnddynamicToDomPoint = dart.constFn(dart_rti.findType("html|DomPoint(@,@)")))(),
    VoidToDomQuad: () => (T$5.VoidToDomQuad = dart.constFn(dart_rti.findType("html|DomQuad()")))(),
    MapNAndMapNAndMapN__ToDomQuad: () => (T$5.MapNAndMapNAndMapN__ToDomQuad = dart.constFn(dart_rti.findType("html|DomQuad([core|Map<@,@>?,core|Map<@,@>?,core|Map<@,@>?,core|Map<@,@>?])")))(),
    dynamicAnddynamicAnddynamic__ToDomQuad: () => (T$5.dynamicAnddynamicAnddynamic__ToDomQuad = dart.constFn(dart_rti.findType("html|DomQuad(@,@,@,@)")))(),
    dynamicAnddynamicAnddynamicToDomQuad: () => (T$5.dynamicAnddynamicAnddynamicToDomQuad = dart.constFn(dart_rti.findType("html|DomQuad(@,@,@)")))(),
    dynamicAnddynamicToDomQuad: () => (T$5.dynamicAnddynamicToDomQuad = dart.constFn(dart_rti.findType("html|DomQuad(@,@)")))(),
    dynamicToDomQuad: () => (T$5.dynamicToDomQuad = dart.constFn(dart_rti.findType("html|DomQuad(@)")))(),
    DomPointN: () => (T$5.DomPointN = dart.constFn(dart_rti.findType("html|DomPoint?")))(),
    MapNToDomQuad: () => (T$5.MapNToDomQuad = dart.constFn(dart_rti.findType("html|DomQuad([core|Map<@,@>?])")))(),
    VoidToDomRectList: () => (T$5.VoidToDomRectList = dart.constFn(dart_rti.findType("html|DomRectList()")))(),
    intToRectangleOfnum: () => (T$5.intToRectangleOfnum = dart.constFn(dart_rti.findType("math|Rectangle<core|num>(core|int)")))(),
    intToRectangleNOfnum: () => (T$5.intToRectangleNOfnum = dart.constFn(dart_rti.findType("math|Rectangle<core|num>?(core|int)")))(),
    ObjectNToRectangleNOfnum: () => (T$5.ObjectNToRectangleNOfnum = dart.constFn(dart_rti.findType("math|Rectangle<core|num>?(core|Object?)")))(),
    ObjectNToRectangleOfnum: () => (T$5.ObjectNToRectangleOfnum = dart.constFn(dart_rti.findType("math|Rectangle<core|num>(core|Object?)")))(),
    VoidToDomRectReadOnly: () => (T$5.VoidToDomRectReadOnly = dart.constFn(dart_rti.findType("html|DomRectReadOnly()")))(),
    numNAndnumNAndnumN__ToDomRectReadOnly: () => (T$5.numNAndnumNAndnumN__ToDomRectReadOnly = dart.constFn(dart_rti.findType("html|DomRectReadOnly([core|num?,core|num?,core|num?,core|num?])")))(),
    dynamicAnddynamicAnddynamic__ToDomRectReadOnly: () => (T$5.dynamicAnddynamicAnddynamic__ToDomRectReadOnly = dart.constFn(dart_rti.findType("html|DomRectReadOnly(@,@,@,@)")))(),
    dynamicAnddynamicAnddynamicToDomRectReadOnly: () => (T$5.dynamicAnddynamicAnddynamicToDomRectReadOnly = dart.constFn(dart_rti.findType("html|DomRectReadOnly(@,@,@)")))(),
    dynamicAnddynamicToDomRectReadOnly: () => (T$5.dynamicAnddynamicToDomRectReadOnly = dart.constFn(dart_rti.findType("html|DomRectReadOnly(@,@)")))(),
    dynamicToDomRectReadOnly: () => (T$5.dynamicToDomRectReadOnly = dart.constFn(dart_rti.findType("html|DomRectReadOnly(@)")))(),
    MapNToDomRectReadOnly: () => (T$5.MapNToDomRectReadOnly = dart.constFn(dart_rti.findType("html|DomRectReadOnly([core|Map<@,@>?])")))(),
    VoidToDomStringList: () => (T$5.VoidToDomStringList = dart.constFn(dart_rti.findType("html|DomStringList()")))(),
    VoidToDomStringMap: () => (T$5.VoidToDomStringMap = dart.constFn(dart_rti.findType("html|DomStringMap()")))(),
    VoidToDomTokenList: () => (T$5.VoidToDomTokenList = dart.constFn(dart_rti.findType("html|DomTokenList()")))(),
    StringAndboolNTobool: () => (T$5.StringAndboolNTobool = dart.constFn(dart_rti.findType("core|bool(core|String[core|bool?])")))(),
    _ChildrenElementList: () => (T$5._ChildrenElementList = dart.constFn(dart_rti.findType("html|_ChildrenElementList")))(),
    intToElement: () => (T$5.intToElement = dart.constFn(dart_rti.findType("html|Element(core|int)")))(),
    ObjectNToElement: () => (T$5.ObjectNToElement = dart.constFn(dart_rti.findType("html|Element(core|Object?)")))(),
    ElementAndIterableOfElementTovoid: () => (T$5.ElementAndIterableOfElementTovoid = dart.constFn(dart_rti.findType("~(html|Element,core|Iterable<html|Element>)")))(),
    FnAndboolTovoid$4: () => (T$5.FnAndboolTovoid$4 = dart.constFn(dart_rti.findType("~(core|bool(html|Element),core|bool)")))(),
    ElementAndObjectNTobool: () => (T$5.ElementAndObjectNTobool = dart.constFn(dart_rti.findType("core|bool(html|Element,core|Object?)")))(),
    ElementToElement: () => (T$5.ElementToElement = dart.constFn(dart_rti.findType("html|Element(html|Element)")))(),
    CssStyleDeclarationBase: () => (T$5.CssStyleDeclarationBase = dart.constFn(dart_rti.findType("html|CssStyleDeclarationBase")))(),
    StringAndStringNTodynamic: () => (T$5.StringAndStringNTodynamic = dart.constFn(dart_rti.findType("@(core|String,core|String?)")))(),
    ScrollAlignment: () => (T$5.ScrollAlignment = dart.constFn(dart_rti.findType("html|ScrollAlignment")))(),
    EmbedElement: () => (T$5.EmbedElement = dart.constFn(dart_rti.findType("html|EmbedElement")))(),
    VoidToEmbedElement: () => (T$5.VoidToEmbedElement = dart.constFn(dart_rti.findType("html|EmbedElement()")))(),
    StringToNode: () => (T$5.StringToNode = dart.constFn(dart_rti.findType("html|Node(core|String)")))(),
    VoidToErrorEvent: () => (T$5.VoidToErrorEvent = dart.constFn(dart_rti.findType("html|ErrorEvent()")))(),
    StringAndMapNToErrorEvent: () => (T$5.StringAndMapNToErrorEvent = dart.constFn(dart_rti.findType("html|ErrorEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToErrorEvent: () => (T$5.dynamicAnddynamicToErrorEvent = dart.constFn(dart_rti.findType("html|ErrorEvent(@,@)")))(),
    dynamicToErrorEvent: () => (T$5.dynamicToErrorEvent = dart.constFn(dart_rti.findType("html|ErrorEvent(@)")))(),
    String__ToEventSource: () => (T$5.String__ToEventSource = dart.constFn(dart_rti.findType("html|EventSource(core|String{withCredentials:@})")))(),
    VoidToEventSource: () => (T$5.VoidToEventSource = dart.constFn(dart_rti.findType("html|EventSource()")))(),
    StringAndMapNToEventSource: () => (T$5.StringAndMapNToEventSource = dart.constFn(dart_rti.findType("html|EventSource(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToEventSource: () => (T$5.dynamicAnddynamicToEventSource = dart.constFn(dart_rti.findType("html|EventSource(@,@)")))(),
    dynamicToEventSource: () => (T$5.dynamicToEventSource = dart.constFn(dart_rti.findType("html|EventSource(@)")))(),
    Event: () => (T$5.Event = dart.constFn(dart_rti.findType("html|Event")))(),
    StringToStreamOfEvent: () => (T$5.StringToStreamOfEvent = dart.constFn(dart_rti.findType("async|Stream<html|Event>(core|String)")))(),
    VoidToExtendableMessageEvent: () => (T$5.VoidToExtendableMessageEvent = dart.constFn(dart_rti.findType("html|ExtendableMessageEvent()")))(),
    ListNOfMessagePort: () => (T$5.ListNOfMessagePort = dart.constFn(dart_rti.findType("core|List<html|MessagePort>?")))(),
    VoidToExternal: () => (T$5.VoidToExternal = dart.constFn(dart_rti.findType("html|External()")))(),
    VoidToFaceDetector: () => (T$5.VoidToFaceDetector = dart.constFn(dart_rti.findType("html|FaceDetector()")))(),
    MapNToFaceDetector: () => (T$5.MapNToFaceDetector = dart.constFn(dart_rti.findType("html|FaceDetector([core|Map<@,@>?])")))(),
    dynamicToFaceDetector: () => (T$5.dynamicToFaceDetector = dart.constFn(dart_rti.findType("html|FaceDetector(@)")))(),
    VoidToFederatedCredential: () => (T$5.VoidToFederatedCredential = dart.constFn(dart_rti.findType("html|FederatedCredential()")))(),
    MapToFederatedCredential: () => (T$5.MapToFederatedCredential = dart.constFn(dart_rti.findType("html|FederatedCredential(core|Map<@,@>)")))(),
    dynamicToFederatedCredential: () => (T$5.dynamicToFederatedCredential = dart.constFn(dart_rti.findType("html|FederatedCredential(@)")))(),
    VoidToFetchEvent: () => (T$5.VoidToFetchEvent = dart.constFn(dart_rti.findType("html|FetchEvent()")))(),
    StringAndMapToFetchEvent: () => (T$5.StringAndMapToFetchEvent = dart.constFn(dart_rti.findType("html|FetchEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToFetchEvent: () => (T$5.dynamicAnddynamicToFetchEvent = dart.constFn(dart_rti.findType("html|FetchEvent(@,@)")))(),
    VoidToFieldSetElement: () => (T$5.VoidToFieldSetElement = dart.constFn(dart_rti.findType("html|FieldSetElement()")))(),
    VoidToFile: () => (T$5.VoidToFile = dart.constFn(dart_rti.findType("html|File()")))(),
    ListOfObjectAndStringAndMapNToFile: () => (T$5.ListOfObjectAndStringAndMapNToFile = dart.constFn(dart_rti.findType("html|File(core|List<core|Object>,core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicAnddynamicToFile: () => (T$5.dynamicAnddynamicAnddynamicToFile = dart.constFn(dart_rti.findType("html|File(@,@,@)")))(),
    dynamicAnddynamicToFile: () => (T$5.dynamicAnddynamicToFile = dart.constFn(dart_rti.findType("html|File(@,@)")))(),
    FileWriter: () => (T$5.FileWriter = dart.constFn(dart_rti.findType("html|FileWriter")))(),
    FileWriterTovoid: () => (T$5.FileWriterTovoid = dart.constFn(dart_rti.findType("~(html|FileWriter)")))(),
    File$1: () => (T$5.File$1 = dart.constFn(dart_rti.findType("html|File")))(),
    FileNTovoid: () => (T$5.FileNTovoid = dart.constFn(dart_rti.findType("~(html|File?)")))(),
    VoidToFileEntry: () => (T$5.VoidToFileEntry = dart.constFn(dart_rti.findType("html|FileEntry()")))(),
    FnAndFnTovoid$5: () => (T$5.FnAndFnTovoid$5 = dart.constFn(dart_rti.findType("~(~(html|FileWriter)[~(html|DomException)?])")))(),
    VoidToFutureOfFileWriter: () => (T$5.VoidToFutureOfFileWriter = dart.constFn(dart_rti.findType("async|Future<html|FileWriter>()")))(),
    FnAndFnTovoid$6: () => (T$5.FnAndFnTovoid$6 = dart.constFn(dart_rti.findType("~(~(html|File?)[~(html|DomException)?])")))(),
    VoidToFutureOfFile: () => (T$5.VoidToFutureOfFile = dart.constFn(dart_rti.findType("async|Future<html|File>()")))(),
    VoidToFileList: () => (T$5.VoidToFileList = dart.constFn(dart_rti.findType("html|FileList()")))(),
    intToFile: () => (T$5.intToFile = dart.constFn(dart_rti.findType("html|File(core|int)")))(),
    intToFileN: () => (T$5.intToFileN = dart.constFn(dart_rti.findType("html|File?(core|int)")))(),
    VoidToFileReader: () => (T$5.VoidToFileReader = dart.constFn(dart_rti.findType("html|FileReader()")))(),
    BlobTovoid: () => (T$5.BlobTovoid = dart.constFn(dart_rti.findType("~(html|Blob)")))(),
    BlobAndStringNTovoid: () => (T$5.BlobAndStringNTovoid = dart.constFn(dart_rti.findType("~(html|Blob[core|String?])")))(),
    VoidToFileSystem: () => (T$5.VoidToFileSystem = dart.constFn(dart_rti.findType("html|FileSystem()")))(),
    DirectoryEntryN: () => (T$5.DirectoryEntryN = dart.constFn(dart_rti.findType("html|DirectoryEntry?")))(),
    VoidToFileWriter: () => (T$5.VoidToFileWriter = dart.constFn(dart_rti.findType("html|FileWriter()")))(),
    VoidToFocusEvent: () => (T$5.VoidToFocusEvent = dart.constFn(dart_rti.findType("html|FocusEvent()")))(),
    StringAndMapNToFocusEvent: () => (T$5.StringAndMapNToFocusEvent = dart.constFn(dart_rti.findType("html|FocusEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToFocusEvent: () => (T$5.dynamicAnddynamicToFocusEvent = dart.constFn(dart_rti.findType("html|FocusEvent(@,@)")))(),
    dynamicToFocusEvent: () => (T$5.dynamicToFocusEvent = dart.constFn(dart_rti.findType("html|FocusEvent(@)")))(),
    FontFace: () => (T$5.FontFace = dart.constFn(dart_rti.findType("html|FontFace")))(),
    VoidToFontFace: () => (T$5.VoidToFontFace = dart.constFn(dart_rti.findType("html|FontFace()")))(),
    StringAndObjectAndMapNToFontFace: () => (T$5.StringAndObjectAndMapNToFontFace = dart.constFn(dart_rti.findType("html|FontFace(core|String,core|Object[core|Map<@,@>?])")))(),
    dynamicAnddynamicAnddynamicToFontFace: () => (T$5.dynamicAnddynamicAnddynamicToFontFace = dart.constFn(dart_rti.findType("html|FontFace(@,@,@)")))(),
    dynamicAnddynamicToFontFace: () => (T$5.dynamicAnddynamicToFontFace = dart.constFn(dart_rti.findType("html|FontFace(@,@)")))(),
    FutureOfFontFace: () => (T$5.FutureOfFontFace = dart.constFn(dart_rti.findType("async|Future<html|FontFace>")))(),
    VoidToFutureOfFontFace: () => (T$5.VoidToFutureOfFontFace = dart.constFn(dart_rti.findType("async|Future<html|FontFace>()")))(),
    VoidToFontFaceSet: () => (T$5.VoidToFontFaceSet = dart.constFn(dart_rti.findType("html|FontFaceSet()")))(),
    FontFaceToFontFaceSetN: () => (T$5.FontFaceToFontFaceSetN = dart.constFn(dart_rti.findType("html|FontFaceSet?(html|FontFace)")))(),
    StringAndStringNTobool: () => (T$5.StringAndStringNTobool = dart.constFn(dart_rti.findType("core|bool(core|String[core|String?])")))(),
    FontFaceTobool: () => (T$5.FontFaceTobool = dart.constFn(dart_rti.findType("core|bool(html|FontFace)")))(),
    FnAndObjectNTovoid: () => (T$5.FnAndObjectNTovoid = dart.constFn(dart_rti.findType("~(~(html|FontFace,html|FontFace,html|FontFaceSet)[core|Object?])")))(),
    StreamOfFontFaceSetLoadEvent: () => (T$5.StreamOfFontFaceSetLoadEvent = dart.constFn(dart_rti.findType("async|Stream<html|FontFaceSetLoadEvent>")))(),
    EventStreamProviderOfFontFaceSetLoadEvent: () => (T$5.EventStreamProviderOfFontFaceSetLoadEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|FontFaceSetLoadEvent>")))(),
    FontFaceSetLoadEventL: () => (T$5.FontFaceSetLoadEventL = dart.constFn(dart_rti.findType("html|FontFaceSetLoadEvent*")))(),
    EventStreamProviderOfFontFaceSetLoadEventL: () => (T$5.EventStreamProviderOfFontFaceSetLoadEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|FontFaceSetLoadEvent*>")))(),
    VoidToFontFaceSetLoadEvent: () => (T$5.VoidToFontFaceSetLoadEvent = dart.constFn(dart_rti.findType("html|FontFaceSetLoadEvent()")))(),
    StringAndMapNToFontFaceSetLoadEvent: () => (T$5.StringAndMapNToFontFaceSetLoadEvent = dart.constFn(dart_rti.findType("html|FontFaceSetLoadEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToFontFaceSetLoadEvent: () => (T$5.dynamicAnddynamicToFontFaceSetLoadEvent = dart.constFn(dart_rti.findType("html|FontFaceSetLoadEvent(@,@)")))(),
    dynamicToFontFaceSetLoadEvent: () => (T$5.dynamicToFontFaceSetLoadEvent = dart.constFn(dart_rti.findType("html|FontFaceSetLoadEvent(@)")))(),
    ListNOfFontFace: () => (T$5.ListNOfFontFace = dart.constFn(dart_rti.findType("core|List<html|FontFace>?")))(),
    VoidToFontFaceSource: () => (T$5.VoidToFontFaceSource = dart.constFn(dart_rti.findType("html|FontFaceSource()")))(),
    VoidToForeignFetchEvent: () => (T$5.VoidToForeignFetchEvent = dart.constFn(dart_rti.findType("html|ForeignFetchEvent()")))(),
    StringAndMapToForeignFetchEvent: () => (T$5.StringAndMapToForeignFetchEvent = dart.constFn(dart_rti.findType("html|ForeignFetchEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToForeignFetchEvent: () => (T$5.dynamicAnddynamicToForeignFetchEvent = dart.constFn(dart_rti.findType("html|ForeignFetchEvent(@,@)")))(),
    VoidToFormData: () => (T$5.VoidToFormData = dart.constFn(dart_rti.findType("html|FormData()")))(),
    FormElementNToFormData: () => (T$5.FormElementNToFormData = dart.constFn(dart_rti.findType("html|FormData([html|FormElement?])")))(),
    dynamicToFormData: () => (T$5.dynamicToFormData = dart.constFn(dart_rti.findType("html|FormData(@)")))(),
    StringAndBlobAndStringNTovoid: () => (T$5.StringAndBlobAndStringNTovoid = dart.constFn(dart_rti.findType("~(core|String,html|Blob[core|String?])")))(),
    StringToListOfObject: () => (T$5.StringToListOfObject = dart.constFn(dart_rti.findType("core|List<core|Object>(core|String)")))(),
    StringAnddynamicAndStringNTovoid: () => (T$5.StringAnddynamicAndStringNTovoid = dart.constFn(dart_rti.findType("~(core|String,@[core|String?])")))(),
    VoidToFormElement: () => (T$5.VoidToFormElement = dart.constFn(dart_rti.findType("html|FormElement()")))(),
    VoidToGamepad: () => (T$5.VoidToGamepad = dart.constFn(dart_rti.findType("html|Gamepad()")))(),
    ListNOfGamepadButton: () => (T$5.ListNOfGamepadButton = dart.constFn(dart_rti.findType("core|List<html|GamepadButton>?")))(),
    GamepadPoseN: () => (T$5.GamepadPoseN = dart.constFn(dart_rti.findType("html|GamepadPose?")))(),
    VoidToGamepadButton: () => (T$5.VoidToGamepadButton = dart.constFn(dart_rti.findType("html|GamepadButton()")))(),
    VoidToGamepadEvent: () => (T$5.VoidToGamepadEvent = dart.constFn(dart_rti.findType("html|GamepadEvent()")))(),
    StringAndMapNToGamepadEvent: () => (T$5.StringAndMapNToGamepadEvent = dart.constFn(dart_rti.findType("html|GamepadEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToGamepadEvent: () => (T$5.dynamicAnddynamicToGamepadEvent = dart.constFn(dart_rti.findType("html|GamepadEvent(@,@)")))(),
    dynamicToGamepadEvent: () => (T$5.dynamicToGamepadEvent = dart.constFn(dart_rti.findType("html|GamepadEvent(@)")))(),
    GamepadN: () => (T$5.GamepadN = dart.constFn(dart_rti.findType("html|Gamepad?")))(),
    VoidToGamepadPose: () => (T$5.VoidToGamepadPose = dart.constFn(dart_rti.findType("html|GamepadPose()")))(),
    Float32ListN: () => (T$5.Float32ListN = dart.constFn(dart_rti.findType("typed_data|Float32List?")))(),
    Geoposition: () => (T$5.Geoposition = dart.constFn(dart_rti.findType("html|Geoposition")))(),
    PositionErrorTovoid: () => (T$5.PositionErrorTovoid = dart.constFn(dart_rti.findType("~(html|PositionError)")))(),
    __ToFutureOfGeoposition: () => (T$5.__ToFutureOfGeoposition = dart.constFn(dart_rti.findType("async|Future<html|Geoposition>({enableHighAccuracy:core|bool?,maximumAge:core|Duration?,timeout:core|Duration?})")))(),
    __ToStreamOfGeoposition: () => (T$5.__ToStreamOfGeoposition = dart.constFn(dart_rti.findType("async|Stream<html|Geoposition>({enableHighAccuracy:core|bool?,maximumAge:core|Duration?,timeout:core|Duration?})")))(),
    dynamicToGeoposition: () => (T$5.dynamicToGeoposition = dart.constFn(dart_rti.findType("html|Geoposition(@)")))(),
    VoidToGeolocation: () => (T$5.VoidToGeolocation = dart.constFn(dart_rti.findType("html|Geolocation()")))(),
    FnAndFnAndMapNTovoid: () => (T$5.FnAndFnAndMapNTovoid = dart.constFn(dart_rti.findType("~(~(@)[~(html|PositionError)?,core|Map<@,@>?])")))(),
    dynamicAndFnAnddynamicTovoid: () => (T$5.dynamicAndFnAnddynamicTovoid = dart.constFn(dart_rti.findType("~(@,~(html|PositionError)?,@)")))(),
    dynamicAndFnTovoid: () => (T$5.dynamicAndFnTovoid = dart.constFn(dart_rti.findType("~(@,~(html|PositionError)?)")))(),
    FnAndFnAndMapNToint: () => (T$5.FnAndFnAndMapNToint = dart.constFn(dart_rti.findType("core|int(~(@)[~(html|PositionError)?,core|Map<@,@>?])")))(),
    dynamicAndFnAnddynamicToint: () => (T$5.dynamicAndFnAnddynamicToint = dart.constFn(dart_rti.findType("core|int(@,~(html|PositionError)?,@)")))(),
    dynamicAndFnToint: () => (T$5.dynamicAndFnToint = dart.constFn(dart_rti.findType("core|int(@,~(html|PositionError)?)")))(),
    Coordinates: () => (T$5.Coordinates = dart.constFn(dart_rti.findType("html|Coordinates")))(),
    VoidToGeoposition: () => (T$5.VoidToGeoposition = dart.constFn(dart_rti.findType("html|Geoposition()")))(),
    CoordinatesN: () => (T$5.CoordinatesN = dart.constFn(dart_rti.findType("html|Coordinates?")))(),
    VoidToGlobalEventHandlers: () => (T$5.VoidToGlobalEventHandlers = dart.constFn(dart_rti.findType("html|GlobalEventHandlers()")))(),
    VoidToGyroscope: () => (T$5.VoidToGyroscope = dart.constFn(dart_rti.findType("html|Gyroscope()")))(),
    MapNToGyroscope: () => (T$5.MapNToGyroscope = dart.constFn(dart_rti.findType("html|Gyroscope([core|Map<@,@>?])")))(),
    dynamicToGyroscope: () => (T$5.dynamicToGyroscope = dart.constFn(dart_rti.findType("html|Gyroscope(@)")))(),
    VoidToHRElement: () => (T$5.VoidToHRElement = dart.constFn(dart_rti.findType("html|HRElement()")))(),
    String__ToHashChangeEvent: () => (T$5.String__ToHashChangeEvent = dart.constFn(dart_rti.findType("html|HashChangeEvent(core|String{canBubble:core|bool,cancelable:core|bool,newUrl:core|String?,oldUrl:core|String?})")))(),
    StringAndMapNToHashChangeEvent: () => (T$5.StringAndMapNToHashChangeEvent = dart.constFn(dart_rti.findType("html|HashChangeEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToHashChangeEvent: () => (T$5.dynamicAnddynamicToHashChangeEvent = dart.constFn(dart_rti.findType("html|HashChangeEvent(@,@)")))(),
    dynamicToHashChangeEvent: () => (T$5.dynamicToHashChangeEvent = dart.constFn(dart_rti.findType("html|HashChangeEvent(@)")))(),
    VoidToHeadElement: () => (T$5.VoidToHeadElement = dart.constFn(dart_rti.findType("html|HeadElement()")))(),
    VoidToHeaders: () => (T$5.VoidToHeaders = dart.constFn(dart_rti.findType("html|Headers()")))(),
    ObjectNToHeaders: () => (T$5.ObjectNToHeaders = dart.constFn(dart_rti.findType("html|Headers([core|Object?])")))(),
    dynamicToHeaders: () => (T$5.dynamicToHeaders = dart.constFn(dart_rti.findType("html|Headers(@)")))(),
    VoidToHeadingElement: () => (T$5.VoidToHeadingElement = dart.constFn(dart_rti.findType("html|HeadingElement()")))(),
    VoidToHistory: () => (T$5.VoidToHistory = dart.constFn(dart_rti.findType("html|History()")))(),
    dynamicAndStringAndStringNTovoid: () => (T$5.dynamicAndStringAndStringNTovoid = dart.constFn(dart_rti.findType("~(@,core|String,core|String?)")))(),
    Node: () => (T$5.Node = dart.constFn(dart_rti.findType("html|Node")))(),
    VoidToHtmlCollection: () => (T$5.VoidToHtmlCollection = dart.constFn(dart_rti.findType("html|HtmlCollection()")))(),
    intToNode: () => (T$5.intToNode = dart.constFn(dart_rti.findType("html|Node(core|int)")))(),
    intNToNodeN: () => (T$5.intNToNodeN = dart.constFn(dart_rti.findType("html|Node?(core|int?)")))(),
    VoidToHtmlDocument: () => (T$5.VoidToHtmlDocument = dart.constFn(dart_rti.findType("html|HtmlDocument()")))(),
    BodyElementN: () => (T$5.BodyElementN = dart.constFn(dart_rti.findType("html|BodyElement?")))(),
    Type__ToElementUpgrader: () => (T$5.Type__ToElementUpgrader = dart.constFn(dart_rti.findType("html|ElementUpgrader(core|Type{extendsTag:core|String?})")))(),
    _CustomEventStreamProviderOfEventL: () => (T$5._CustomEventStreamProviderOfEventL = dart.constFn(dart_rti.findType("html|_CustomEventStreamProvider<html|Event*>")))(),
    VoidToHtmlFormControlsCollection: () => (T$5.VoidToHtmlFormControlsCollection = dart.constFn(dart_rti.findType("html|HtmlFormControlsCollection()")))(),
    VoidToHtmlHtmlElement: () => (T$5.VoidToHtmlHtmlElement = dart.constFn(dart_rti.findType("html|HtmlHtmlElement()")))(),
    VoidToHtmlHyperlinkElementUtils: () => (T$5.VoidToHtmlHyperlinkElementUtils = dart.constFn(dart_rti.findType("html|HtmlHyperlinkElementUtils()")))(),
    VoidToHtmlOptionsCollection: () => (T$5.VoidToHtmlOptionsCollection = dart.constFn(dart_rti.findType("html|HtmlOptionsCollection()")))(),
    intToElementN: () => (T$5.intToElementN = dart.constFn(dart_rti.findType("html|Element?(core|int)")))(),
    HttpRequestToString: () => (T$5.HttpRequestToString = dart.constFn(dart_rti.findType("core|String(html|HttpRequest)")))(),
    HttpRequest: () => (T$5.HttpRequest = dart.constFn(dart_rti.findType("html|HttpRequest")))(),
    ProgressEventTovoid: () => (T$5.ProgressEventTovoid = dart.constFn(dart_rti.findType("~(html|ProgressEvent)")))(),
    FutureOrNOfString: () => (T$5.FutureOrNOfString = dart.constFn(dart_rti.findType("core|String/?")))(),
    VoidToHttpRequestEventTarget: () => (T$5.VoidToHttpRequestEventTarget = dart.constFn(dart_rti.findType("html|HttpRequestEventTarget()")))(),
    String__ToFutureOfString: () => (T$5.String__ToFutureOfString = dart.constFn(dart_rti.findType("async|Future<core|String>(core|String{onProgress:~(html|ProgressEvent)?,withCredentials:core|bool?})")))(),
    StringAndMapOfString$String__ToFutureOfHttpRequest: () => (T$5.StringAndMapOfString$String__ToFutureOfHttpRequest = dart.constFn(dart_rti.findType("async|Future<html|HttpRequest>(core|String,core|Map<core|String,core|String>{onProgress:~(html|ProgressEvent)?,requestHeaders:core|Map<core|String,core|String>?,responseType:core|String?,withCredentials:core|bool?})")))(),
    String__ToFutureOfHttpRequest: () => (T$5.String__ToFutureOfHttpRequest = dart.constFn(dart_rti.findType("async|Future<html|HttpRequest>(core|String{method:core|String?,mimeType:core|String?,onProgress:~(html|ProgressEvent)?,requestHeaders:core|Map<core|String,core|String>?,responseType:core|String?,sendData:@,withCredentials:core|bool?})")))(),
    String__ToFutureOfString$1: () => (T$5.String__ToFutureOfString$1 = dart.constFn(dart_rti.findType("async|Future<core|String>(core|String{method:core|String?,sendData:core|String?})")))(),
    StringAndString__Tovoid$1: () => (T$5.StringAndString__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|String,core|String{async:core|bool?,password:core|String?,user:core|String?})")))(),
    VoidToHttpRequest: () => (T$5.VoidToHttpRequest = dart.constFn(dart_rti.findType("html|HttpRequest()")))(),
    HttpRequestUpload: () => (T$5.HttpRequestUpload = dart.constFn(dart_rti.findType("html|HttpRequestUpload")))(),
    VoidToHttpRequestUpload: () => (T$5.VoidToHttpRequestUpload = dart.constFn(dart_rti.findType("html|HttpRequestUpload()")))(),
    VoidToIFrameElement: () => (T$5.VoidToIFrameElement = dart.constFn(dart_rti.findType("html|IFrameElement()")))(),
    VoidToIdleDeadline: () => (T$5.VoidToIdleDeadline = dart.constFn(dart_rti.findType("html|IdleDeadline()")))(),
    VoidToImageBitmap: () => (T$5.VoidToImageBitmap = dart.constFn(dart_rti.findType("html|ImageBitmap()")))(),
    VoidToImageBitmapRenderingContext: () => (T$5.VoidToImageBitmapRenderingContext = dart.constFn(dart_rti.findType("html|ImageBitmapRenderingContext()")))(),
    ImageBitmapNTovoid: () => (T$5.ImageBitmapNTovoid = dart.constFn(dart_rti.findType("~(html|ImageBitmap?)")))(),
    PhotoCapabilities: () => (T$5.PhotoCapabilities = dart.constFn(dart_rti.findType("html|PhotoCapabilities")))(),
    ImageBitmap: () => (T$5.ImageBitmap = dart.constFn(dart_rti.findType("html|ImageBitmap")))(),
    VoidToImageCapture: () => (T$5.VoidToImageCapture = dart.constFn(dart_rti.findType("html|ImageCapture()")))(),
    MediaStreamTrackToImageCapture: () => (T$5.MediaStreamTrackToImageCapture = dart.constFn(dart_rti.findType("html|ImageCapture(html|MediaStreamTrack)")))(),
    dynamicToImageCapture: () => (T$5.dynamicToImageCapture = dart.constFn(dart_rti.findType("html|ImageCapture(@)")))(),
    MediaStreamTrackN: () => (T$5.MediaStreamTrackN = dart.constFn(dart_rti.findType("html|MediaStreamTrack?")))(),
    VoidToFutureOfPhotoCapabilities: () => (T$5.VoidToFutureOfPhotoCapabilities = dart.constFn(dart_rti.findType("async|Future<html|PhotoCapabilities>()")))(),
    VoidToFutureOfMapNOfString$dynamic: () => (T$5.VoidToFutureOfMapNOfString$dynamic = dart.constFn(dart_rti.findType("async|Future<core|Map<core|String,@>?>()")))(),
    VoidToFutureOfImageBitmap: () => (T$5.VoidToFutureOfImageBitmap = dart.constFn(dart_rti.findType("async|Future<html|ImageBitmap>()")))(),
    MapToFuture: () => (T$5.MapToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|Map<@,@>)")))(),
    MapNToFutureOfBlob: () => (T$5.MapNToFutureOfBlob = dart.constFn(dart_rti.findType("async|Future<html|Blob>([core|Map<@,@>?])")))(),
    VoidToImageData: () => (T$5.VoidToImageData = dart.constFn(dart_rti.findType("html|ImageData()")))(),
    dynamicAndintAndintNToImageData: () => (T$5.dynamicAndintAndintNToImageData = dart.constFn(dart_rti.findType("html|ImageData(@,core|int[core|int?])")))(),
    dynamicAnddynamicToImageData: () => (T$5.dynamicAnddynamicToImageData = dart.constFn(dart_rti.findType("html|ImageData(@,@)")))(),
    dynamicAnddynamicAnddynamicToImageData: () => (T$5.dynamicAnddynamicAnddynamicToImageData = dart.constFn(dart_rti.findType("html|ImageData(@,@,@)")))(),
    VoidToImageElement: () => (T$5.VoidToImageElement = dart.constFn(dart_rti.findType("html|ImageElement()")))(),
    __ToImageElement: () => (T$5.__ToImageElement = dart.constFn(dart_rti.findType("html|ImageElement({height:core|int?,src:core|String?,width:core|int?})")))(),
    VoidToInputDeviceCapabilities: () => (T$5.VoidToInputDeviceCapabilities = dart.constFn(dart_rti.findType("html|InputDeviceCapabilities()")))(),
    MapNToInputDeviceCapabilities: () => (T$5.MapNToInputDeviceCapabilities = dart.constFn(dart_rti.findType("html|InputDeviceCapabilities([core|Map<@,@>?])")))(),
    dynamicToInputDeviceCapabilities: () => (T$5.dynamicToInputDeviceCapabilities = dart.constFn(dart_rti.findType("html|InputDeviceCapabilities(@)")))(),
    InputElement: () => (T$5.InputElement = dart.constFn(dart_rti.findType("html|InputElement")))(),
    __ToInputElement: () => (T$5.__ToInputElement = dart.constFn(dart_rti.findType("html|InputElement({type:core|String?})")))(),
    VoidToInputElement: () => (T$5.VoidToInputElement = dart.constFn(dart_rti.findType("html|InputElement()")))(),
    DateTimeN: () => (T$5.DateTimeN = dart.constFn(dart_rti.findType("core|DateTime?")))(),
    ListNOfEntry: () => (T$5.ListNOfEntry = dart.constFn(dart_rti.findType("core|List<html|Entry>?")))(),
    String__Tovoid$6: () => (T$5.String__Tovoid$6 = dart.constFn(dart_rti.findType("~(core|String{end:core|int?,selectionMode:core|String?,start:core|int?})")))(),
    intAndintAndStringNTovoid: () => (T$5.intAndintAndStringNTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int[core|String?])")))(),
    VoidToHiddenInputElement: () => (T$5.VoidToHiddenInputElement = dart.constFn(dart_rti.findType("html|HiddenInputElement()")))(),
    VoidToSearchInputElement: () => (T$5.VoidToSearchInputElement = dart.constFn(dart_rti.findType("html|SearchInputElement()")))(),
    VoidToTextInputElement: () => (T$5.VoidToTextInputElement = dart.constFn(dart_rti.findType("html|TextInputElement()")))(),
    VoidToUrlInputElement: () => (T$5.VoidToUrlInputElement = dart.constFn(dart_rti.findType("html|UrlInputElement()")))(),
    VoidToTelephoneInputElement: () => (T$5.VoidToTelephoneInputElement = dart.constFn(dart_rti.findType("html|TelephoneInputElement()")))(),
    VoidToEmailInputElement: () => (T$5.VoidToEmailInputElement = dart.constFn(dart_rti.findType("html|EmailInputElement()")))(),
    VoidToPasswordInputElement: () => (T$5.VoidToPasswordInputElement = dart.constFn(dart_rti.findType("html|PasswordInputElement()")))(),
    VoidToDateInputElement: () => (T$5.VoidToDateInputElement = dart.constFn(dart_rti.findType("html|DateInputElement()")))(),
    VoidToMonthInputElement: () => (T$5.VoidToMonthInputElement = dart.constFn(dart_rti.findType("html|MonthInputElement()")))(),
    VoidToWeekInputElement: () => (T$5.VoidToWeekInputElement = dart.constFn(dart_rti.findType("html|WeekInputElement()")))(),
    VoidToTimeInputElement: () => (T$5.VoidToTimeInputElement = dart.constFn(dart_rti.findType("html|TimeInputElement()")))(),
    VoidToLocalDateTimeInputElement: () => (T$5.VoidToLocalDateTimeInputElement = dart.constFn(dart_rti.findType("html|LocalDateTimeInputElement()")))(),
    VoidToNumberInputElement: () => (T$5.VoidToNumberInputElement = dart.constFn(dart_rti.findType("html|NumberInputElement()")))(),
    VoidToRangeInputElement: () => (T$5.VoidToRangeInputElement = dart.constFn(dart_rti.findType("html|RangeInputElement()")))(),
    VoidToCheckboxInputElement: () => (T$5.VoidToCheckboxInputElement = dart.constFn(dart_rti.findType("html|CheckboxInputElement()")))(),
    VoidToRadioButtonInputElement: () => (T$5.VoidToRadioButtonInputElement = dart.constFn(dart_rti.findType("html|RadioButtonInputElement()")))(),
    VoidToFileUploadInputElement: () => (T$5.VoidToFileUploadInputElement = dart.constFn(dart_rti.findType("html|FileUploadInputElement()")))(),
    VoidToSubmitButtonInputElement: () => (T$5.VoidToSubmitButtonInputElement = dart.constFn(dart_rti.findType("html|SubmitButtonInputElement()")))(),
    VoidToImageButtonInputElement: () => (T$5.VoidToImageButtonInputElement = dart.constFn(dart_rti.findType("html|ImageButtonInputElement()")))(),
    VoidToResetButtonInputElement: () => (T$5.VoidToResetButtonInputElement = dart.constFn(dart_rti.findType("html|ResetButtonInputElement()")))(),
    VoidToButtonInputElement: () => (T$5.VoidToButtonInputElement = dart.constFn(dart_rti.findType("html|ButtonInputElement()")))(),
    VoidToInstallEvent: () => (T$5.VoidToInstallEvent = dart.constFn(dart_rti.findType("html|InstallEvent()")))(),
    StringAndMapNToInstallEvent: () => (T$5.StringAndMapNToInstallEvent = dart.constFn(dart_rti.findType("html|InstallEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToInstallEvent: () => (T$5.dynamicAnddynamicToInstallEvent = dart.constFn(dart_rti.findType("html|InstallEvent(@,@)")))(),
    dynamicToInstallEvent: () => (T$5.dynamicToInstallEvent = dart.constFn(dart_rti.findType("html|InstallEvent(@)")))(),
    ListAndIntersectionObserverTovoid: () => (T$5.ListAndIntersectionObserverTovoid = dart.constFn(dart_rti.findType("~(core|List<@>,html|IntersectionObserver)")))(),
    VoidToIntersectionObserver: () => (T$5.VoidToIntersectionObserver = dart.constFn(dart_rti.findType("html|IntersectionObserver()")))(),
    FnAndMapNToIntersectionObserver: () => (T$5.FnAndMapNToIntersectionObserver = dart.constFn(dart_rti.findType("html|IntersectionObserver(~(core|List<@>,html|IntersectionObserver)[core|Map<@,@>?])")))(),
    dynamicAnddynamicToIntersectionObserver: () => (T$5.dynamicAnddynamicToIntersectionObserver = dart.constFn(dart_rti.findType("html|IntersectionObserver(@,@)")))(),
    dynamicToIntersectionObserver: () => (T$5.dynamicToIntersectionObserver = dart.constFn(dart_rti.findType("html|IntersectionObserver(@)")))(),
    ElementTovoid: () => (T$5.ElementTovoid = dart.constFn(dart_rti.findType("~(html|Element)")))(),
    VoidToListOfIntersectionObserverEntry: () => (T$5.VoidToListOfIntersectionObserverEntry = dart.constFn(dart_rti.findType("core|List<html|IntersectionObserverEntry>()")))(),
    VoidToIntersectionObserverEntry: () => (T$5.VoidToIntersectionObserverEntry = dart.constFn(dart_rti.findType("html|IntersectionObserverEntry()")))(),
    DomRectReadOnlyN: () => (T$5.DomRectReadOnlyN = dart.constFn(dart_rti.findType("html|DomRectReadOnly?")))(),
    VoidToInterventionReport: () => (T$5.VoidToInterventionReport = dart.constFn(dart_rti.findType("html|InterventionReport()")))(),
    KeyboardEvent: () => (T$5.KeyboardEvent = dart.constFn(dart_rti.findType("html|KeyboardEvent")))(),
    String__ToKeyboardEvent: () => (T$5.String__ToKeyboardEvent = dart.constFn(dart_rti.findType("html|KeyboardEvent(core|String{altKey:core|bool,canBubble:core|bool,cancelable:core|bool,ctrlKey:core|bool,keyLocation:core|int?,location:core|int?,metaKey:core|bool,shiftKey:core|bool,view:html|Window?})")))(),
    StringAndboolAndbool__Tovoid$1: () => (T$5.StringAndboolAndbool__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|String,core|bool,core|bool,html|Window?,core|String,core|int?,core|bool,core|bool,core|bool,core|bool)")))(),
    StringAndMapNToKeyboardEvent: () => (T$5.StringAndMapNToKeyboardEvent = dart.constFn(dart_rti.findType("html|KeyboardEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToKeyboardEvent: () => (T$5.dynamicAnddynamicToKeyboardEvent = dart.constFn(dart_rti.findType("html|KeyboardEvent(@,@)")))(),
    dynamicToKeyboardEvent: () => (T$5.dynamicToKeyboardEvent = dart.constFn(dart_rti.findType("html|KeyboardEvent(@)")))(),
    VoidToKeyframeEffectReadOnly: () => (T$5.VoidToKeyframeEffectReadOnly = dart.constFn(dart_rti.findType("html|KeyframeEffectReadOnly()")))(),
    ElementNAndObjectNAndObjectNToKeyframeEffectReadOnly: () => (T$5.ElementNAndObjectNAndObjectNToKeyframeEffectReadOnly = dart.constFn(dart_rti.findType("html|KeyframeEffectReadOnly(html|Element?,core|Object?[core|Object?])")))(),
    dynamicAnddynamicAnddynamicToKeyframeEffectReadOnly: () => (T$5.dynamicAnddynamicAnddynamicToKeyframeEffectReadOnly = dart.constFn(dart_rti.findType("html|KeyframeEffectReadOnly(@,@,@)")))(),
    dynamicAnddynamicToKeyframeEffectReadOnly: () => (T$5.dynamicAnddynamicToKeyframeEffectReadOnly = dart.constFn(dart_rti.findType("html|KeyframeEffectReadOnly(@,@)")))(),
    VoidToKeyframeEffect: () => (T$5.VoidToKeyframeEffect = dart.constFn(dart_rti.findType("html|KeyframeEffect()")))(),
    ElementNAndObjectNAndObjectNToKeyframeEffect: () => (T$5.ElementNAndObjectNAndObjectNToKeyframeEffect = dart.constFn(dart_rti.findType("html|KeyframeEffect(html|Element?,core|Object?[core|Object?])")))(),
    dynamicAnddynamicAnddynamicToKeyframeEffect: () => (T$5.dynamicAnddynamicAnddynamicToKeyframeEffect = dart.constFn(dart_rti.findType("html|KeyframeEffect(@,@,@)")))(),
    dynamicAnddynamicToKeyframeEffect: () => (T$5.dynamicAnddynamicToKeyframeEffect = dart.constFn(dart_rti.findType("html|KeyframeEffect(@,@)")))(),
    VoidToLIElement: () => (T$5.VoidToLIElement = dart.constFn(dart_rti.findType("html|LIElement()")))(),
    VoidToLabelElement: () => (T$5.VoidToLabelElement = dart.constFn(dart_rti.findType("html|LabelElement()")))(),
    VoidToLegendElement: () => (T$5.VoidToLegendElement = dart.constFn(dart_rti.findType("html|LegendElement()")))(),
    VoidToLinearAccelerationSensor: () => (T$5.VoidToLinearAccelerationSensor = dart.constFn(dart_rti.findType("html|LinearAccelerationSensor()")))(),
    MapNToLinearAccelerationSensor: () => (T$5.MapNToLinearAccelerationSensor = dart.constFn(dart_rti.findType("html|LinearAccelerationSensor([core|Map<@,@>?])")))(),
    dynamicToLinearAccelerationSensor: () => (T$5.dynamicToLinearAccelerationSensor = dart.constFn(dart_rti.findType("html|LinearAccelerationSensor(@)")))(),
    VoidToLinkElement: () => (T$5.VoidToLinkElement = dart.constFn(dart_rti.findType("html|LinkElement()")))(),
    VoidToLocation: () => (T$5.VoidToLocation = dart.constFn(dart_rti.findType("html|Location()")))(),
    TrustedUrlN: () => (T$5.TrustedUrlN = dart.constFn(dart_rti.findType("html|TrustedUrl?")))(),
    VoidToMagnetometer: () => (T$5.VoidToMagnetometer = dart.constFn(dart_rti.findType("html|Magnetometer()")))(),
    MapNToMagnetometer: () => (T$5.MapNToMagnetometer = dart.constFn(dart_rti.findType("html|Magnetometer([core|Map<@,@>?])")))(),
    dynamicToMagnetometer: () => (T$5.dynamicToMagnetometer = dart.constFn(dart_rti.findType("html|Magnetometer(@)")))(),
    VoidToMapElement: () => (T$5.VoidToMapElement = dart.constFn(dart_rti.findType("html|MapElement()")))(),
    VoidToMathMLElement: () => (T$5.VoidToMathMLElement = dart.constFn(dart_rti.findType("html|MathMLElement()")))(),
    MediaCapabilitiesInfo: () => (T$5.MediaCapabilitiesInfo = dart.constFn(dart_rti.findType("html|MediaCapabilitiesInfo")))(),
    VoidToMediaCapabilities: () => (T$5.VoidToMediaCapabilities = dart.constFn(dart_rti.findType("html|MediaCapabilities()")))(),
    MapToFutureOfMediaCapabilitiesInfo: () => (T$5.MapToFutureOfMediaCapabilitiesInfo = dart.constFn(dart_rti.findType("async|Future<html|MediaCapabilitiesInfo>(core|Map<@,@>)")))(),
    VoidToMediaCapabilitiesInfo: () => (T$5.VoidToMediaCapabilitiesInfo = dart.constFn(dart_rti.findType("html|MediaCapabilitiesInfo()")))(),
    VoidToMediaDeviceInfo: () => (T$5.VoidToMediaDeviceInfo = dart.constFn(dart_rti.findType("html|MediaDeviceInfo()")))(),
    MediaStream: () => (T$5.MediaStream = dart.constFn(dart_rti.findType("html|MediaStream")))(),
    VoidToMediaDevices: () => (T$5.VoidToMediaDevices = dart.constFn(dart_rti.findType("html|MediaDevices()")))(),
    MapNToFutureOfMediaStream: () => (T$5.MapNToFutureOfMediaStream = dart.constFn(dart_rti.findType("async|Future<html|MediaStream>([core|Map<@,@>?])")))(),
    VoidToMediaEncryptedEvent: () => (T$5.VoidToMediaEncryptedEvent = dart.constFn(dart_rti.findType("html|MediaEncryptedEvent()")))(),
    StringAndMapNToMediaEncryptedEvent: () => (T$5.StringAndMapNToMediaEncryptedEvent = dart.constFn(dart_rti.findType("html|MediaEncryptedEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToMediaEncryptedEvent: () => (T$5.dynamicAnddynamicToMediaEncryptedEvent = dart.constFn(dart_rti.findType("html|MediaEncryptedEvent(@,@)")))(),
    dynamicToMediaEncryptedEvent: () => (T$5.dynamicToMediaEncryptedEvent = dart.constFn(dart_rti.findType("html|MediaEncryptedEvent(@)")))(),
    VoidToMediaError: () => (T$5.VoidToMediaError = dart.constFn(dart_rti.findType("html|MediaError()")))(),
    VoidToMediaKeyMessageEvent: () => (T$5.VoidToMediaKeyMessageEvent = dart.constFn(dart_rti.findType("html|MediaKeyMessageEvent()")))(),
    StringAndMapToMediaKeyMessageEvent: () => (T$5.StringAndMapToMediaKeyMessageEvent = dart.constFn(dart_rti.findType("html|MediaKeyMessageEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToMediaKeyMessageEvent: () => (T$5.dynamicAnddynamicToMediaKeyMessageEvent = dart.constFn(dart_rti.findType("html|MediaKeyMessageEvent(@,@)")))(),
    VoidToMediaKeySession: () => (T$5.VoidToMediaKeySession = dart.constFn(dart_rti.findType("html|MediaKeySession()")))(),
    MediaKeyStatusMapN: () => (T$5.MediaKeyStatusMapN = dart.constFn(dart_rti.findType("html|MediaKeyStatusMap?")))(),
    StringAnddynamicToFuture: () => (T$5.StringAnddynamicToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|String,@)")))(),
    VoidToMediaKeyStatusMap: () => (T$5.VoidToMediaKeyStatusMap = dart.constFn(dart_rti.findType("html|MediaKeyStatusMap()")))(),
    VoidToMediaKeySystemAccess: () => (T$5.VoidToMediaKeySystemAccess = dart.constFn(dart_rti.findType("html|MediaKeySystemAccess()")))(),
    VoidToMediaKeys: () => (T$5.VoidToMediaKeys = dart.constFn(dart_rti.findType("html|MediaKeys()")))(),
    StringNToMediaKeySession: () => (T$5.StringNToMediaKeySession = dart.constFn(dart_rti.findType("html|MediaKeySession([core|String?])")))(),
    MediaKeysPolicyToFuture: () => (T$5.MediaKeysPolicyToFuture = dart.constFn(dart_rti.findType("async|Future<@>(html|MediaKeysPolicy)")))(),
    VoidToMediaKeysPolicy: () => (T$5.VoidToMediaKeysPolicy = dart.constFn(dart_rti.findType("html|MediaKeysPolicy()")))(),
    MapToMediaKeysPolicy: () => (T$5.MapToMediaKeysPolicy = dart.constFn(dart_rti.findType("html|MediaKeysPolicy(core|Map<@,@>)")))(),
    dynamicToMediaKeysPolicy: () => (T$5.dynamicToMediaKeysPolicy = dart.constFn(dart_rti.findType("html|MediaKeysPolicy(@)")))(),
    VoidToMediaList: () => (T$5.VoidToMediaList = dart.constFn(dart_rti.findType("html|MediaList()")))(),
    VoidToMediaMetadata: () => (T$5.VoidToMediaMetadata = dart.constFn(dart_rti.findType("html|MediaMetadata()")))(),
    MapNToMediaMetadata: () => (T$5.MapNToMediaMetadata = dart.constFn(dart_rti.findType("html|MediaMetadata([core|Map<@,@>?])")))(),
    dynamicToMediaMetadata: () => (T$5.dynamicToMediaMetadata = dart.constFn(dart_rti.findType("html|MediaMetadata(@)")))(),
    VoidToMediaQueryList: () => (T$5.VoidToMediaQueryList = dart.constFn(dart_rti.findType("html|MediaQueryList()")))(),
    FnTovoid$32: () => (T$5.FnTovoid$32 = dart.constFn(dart_rti.findType("~(@(html|Event)?)")))(),
    VoidToMediaQueryListEvent: () => (T$5.VoidToMediaQueryListEvent = dart.constFn(dart_rti.findType("html|MediaQueryListEvent()")))(),
    StringAndMapNToMediaQueryListEvent: () => (T$5.StringAndMapNToMediaQueryListEvent = dart.constFn(dart_rti.findType("html|MediaQueryListEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToMediaQueryListEvent: () => (T$5.dynamicAnddynamicToMediaQueryListEvent = dart.constFn(dart_rti.findType("html|MediaQueryListEvent(@,@)")))(),
    dynamicToMediaQueryListEvent: () => (T$5.dynamicToMediaQueryListEvent = dart.constFn(dart_rti.findType("html|MediaQueryListEvent(@)")))(),
    VoidToMediaRecorder: () => (T$5.VoidToMediaRecorder = dart.constFn(dart_rti.findType("html|MediaRecorder()")))(),
    MediaStreamAndMapNToMediaRecorder: () => (T$5.MediaStreamAndMapNToMediaRecorder = dart.constFn(dart_rti.findType("html|MediaRecorder(html|MediaStream[core|Map<@,@>?])")))(),
    dynamicAnddynamicToMediaRecorder: () => (T$5.dynamicAnddynamicToMediaRecorder = dart.constFn(dart_rti.findType("html|MediaRecorder(@,@)")))(),
    dynamicToMediaRecorder: () => (T$5.dynamicToMediaRecorder = dart.constFn(dart_rti.findType("html|MediaRecorder(@)")))(),
    VoidToMediaSession: () => (T$5.VoidToMediaSession = dart.constFn(dart_rti.findType("html|MediaSession()")))(),
    MediaMetadataN: () => (T$5.MediaMetadataN = dart.constFn(dart_rti.findType("html|MediaMetadata?")))(),
    StringAndFnTovoid: () => (T$5.StringAndFnTovoid = dart.constFn(dart_rti.findType("~(core|String,~()?)")))(),
    VoidToMediaSettingsRange: () => (T$5.VoidToMediaSettingsRange = dart.constFn(dart_rti.findType("html|MediaSettingsRange()")))(),
    VoidToMediaSource: () => (T$5.VoidToMediaSource = dart.constFn(dart_rti.findType("html|MediaSource()")))(),
    SourceBufferListN: () => (T$5.SourceBufferListN = dart.constFn(dart_rti.findType("html|SourceBufferList?")))(),
    StringToSourceBuffer: () => (T$5.StringToSourceBuffer = dart.constFn(dart_rti.findType("html|SourceBuffer(core|String)")))(),
    SourceBufferTovoid: () => (T$5.SourceBufferTovoid = dart.constFn(dart_rti.findType("~(html|SourceBuffer)")))(),
    ListOfMediaStreamTrack: () => (T$5.ListOfMediaStreamTrack = dart.constFn(dart_rti.findType("core|List<html|MediaStreamTrack>")))(),
    dynamicToMediaStream: () => (T$5.dynamicToMediaStream = dart.constFn(dart_rti.findType("html|MediaStream([@])")))(),
    dynamicToMediaStream$1: () => (T$5.dynamicToMediaStream$1 = dart.constFn(dart_rti.findType("html|MediaStream(@)")))(),
    MediaStreamTrackTovoid: () => (T$5.MediaStreamTrackTovoid = dart.constFn(dart_rti.findType("~(html|MediaStreamTrack)")))(),
    VoidToListOfMediaStreamTrack: () => (T$5.VoidToListOfMediaStreamTrack = dart.constFn(dart_rti.findType("core|List<html|MediaStreamTrack>()")))(),
    StringToMediaStreamTrackN: () => (T$5.StringToMediaStreamTrackN = dart.constFn(dart_rti.findType("html|MediaStreamTrack?(core|String)")))(),
    VoidToMediaStreamEvent: () => (T$5.VoidToMediaStreamEvent = dart.constFn(dart_rti.findType("html|MediaStreamEvent()")))(),
    StringAndMapNToMediaStreamEvent: () => (T$5.StringAndMapNToMediaStreamEvent = dart.constFn(dart_rti.findType("html|MediaStreamEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToMediaStreamEvent: () => (T$5.dynamicAnddynamicToMediaStreamEvent = dart.constFn(dart_rti.findType("html|MediaStreamEvent(@,@)")))(),
    dynamicToMediaStreamEvent: () => (T$5.dynamicToMediaStreamEvent = dart.constFn(dart_rti.findType("html|MediaStreamEvent(@)")))(),
    VoidToMediaStreamTrackEvent: () => (T$5.VoidToMediaStreamTrackEvent = dart.constFn(dart_rti.findType("html|MediaStreamTrackEvent()")))(),
    StringAndMapToMediaStreamTrackEvent: () => (T$5.StringAndMapToMediaStreamTrackEvent = dart.constFn(dart_rti.findType("html|MediaStreamTrackEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToMediaStreamTrackEvent: () => (T$5.dynamicAnddynamicToMediaStreamTrackEvent = dart.constFn(dart_rti.findType("html|MediaStreamTrackEvent(@,@)")))(),
    VoidToMemoryInfo: () => (T$5.VoidToMemoryInfo = dart.constFn(dart_rti.findType("html|MemoryInfo()")))(),
    VoidToMenuElement: () => (T$5.VoidToMenuElement = dart.constFn(dart_rti.findType("html|MenuElement()")))(),
    VoidToMessageChannel: () => (T$5.VoidToMessageChannel = dart.constFn(dart_rti.findType("html|MessageChannel()")))(),
    MessagePort: () => (T$5.MessagePort = dart.constFn(dart_rti.findType("html|MessagePort")))(),
    MessagePortL: () => (T$5.MessagePortL = dart.constFn(dart_rti.findType("html|MessagePort*")))(),
    MessageEvent: () => (T$5.MessageEvent = dart.constFn(dart_rti.findType("html|MessageEvent")))(),
    String__ToMessageEvent: () => (T$5.String__ToMessageEvent = dart.constFn(dart_rti.findType("html|MessageEvent(core|String{canBubble:core|bool,cancelable:core|bool,data:core|Object?,lastEventId:core|String?,messagePorts:core|List<html|MessagePort>,origin:core|String?,source:html|Window?})")))(),
    StringAndMapNToMessageEvent: () => (T$5.StringAndMapNToMessageEvent = dart.constFn(dart_rti.findType("html|MessageEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToMessageEvent: () => (T$5.dynamicAnddynamicToMessageEvent = dart.constFn(dart_rti.findType("html|MessageEvent(@,@)")))(),
    dynamicToMessageEvent: () => (T$5.dynamicToMessageEvent = dart.constFn(dart_rti.findType("html|MessageEvent(@)")))(),
    ListOfMessagePort: () => (T$5.ListOfMessagePort = dart.constFn(dart_rti.findType("core|List<html|MessagePort>")))(),
    StringNAndboolNAndboolN__Tovoid$1: () => (T$5.StringNAndboolNAndboolN__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|String?,core|bool?,core|bool?,core|Object?,core|String?,core|String?,html|EventTarget?,core|List<html|MessagePort>?)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$1: () => (T$5.dynamicAnddynamicAnddynamic__Tovoid$1 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,core|List<html|MessagePort>?)")))(),
    VoidToMessagePort: () => (T$5.VoidToMessagePort = dart.constFn(dart_rti.findType("html|MessagePort()")))(),
    VoidToMetaElement: () => (T$5.VoidToMetaElement = dart.constFn(dart_rti.findType("html|MetaElement()")))(),
    VoidToMetadata: () => (T$5.VoidToMetadata = dart.constFn(dart_rti.findType("html|Metadata()")))(),
    MeterElement: () => (T$5.MeterElement = dart.constFn(dart_rti.findType("html|MeterElement")))(),
    VoidToMeterElement: () => (T$5.VoidToMeterElement = dart.constFn(dart_rti.findType("html|MeterElement()")))(),
    VoidToMidiAccess: () => (T$5.VoidToMidiAccess = dart.constFn(dart_rti.findType("html|MidiAccess()")))(),
    MidiInputMapN: () => (T$5.MidiInputMapN = dart.constFn(dart_rti.findType("html|MidiInputMap?")))(),
    MidiOutputMapN: () => (T$5.MidiOutputMapN = dart.constFn(dart_rti.findType("html|MidiOutputMap?")))(),
    VoidToMidiConnectionEvent: () => (T$5.VoidToMidiConnectionEvent = dart.constFn(dart_rti.findType("html|MidiConnectionEvent()")))()
  };
  var T = {
    StringAndMapNToMidiConnectionEvent: () => (T.StringAndMapNToMidiConnectionEvent = dart.constFn(dart_rti.findType("html|MidiConnectionEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToMidiConnectionEvent: () => (T.dynamicAnddynamicToMidiConnectionEvent = dart.constFn(dart_rti.findType("html|MidiConnectionEvent(@,@)")))(),
    dynamicToMidiConnectionEvent: () => (T.dynamicToMidiConnectionEvent = dart.constFn(dart_rti.findType("html|MidiConnectionEvent(@)")))(),
    MidiPortN: () => (T.MidiPortN = dart.constFn(dart_rti.findType("html|MidiPort?")))(),
    VoidToMidiPort: () => (T.VoidToMidiPort = dart.constFn(dart_rti.findType("html|MidiPort()")))(),
    VoidToMidiInput: () => (T.VoidToMidiInput = dart.constFn(dart_rti.findType("html|MidiInput()")))(),
    StreamOfMidiMessageEvent: () => (T.StreamOfMidiMessageEvent = dart.constFn(dart_rti.findType("async|Stream<html|MidiMessageEvent>")))(),
    EventStreamProviderOfMidiMessageEvent: () => (T.EventStreamProviderOfMidiMessageEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|MidiMessageEvent>")))(),
    MidiMessageEventL: () => (T.MidiMessageEventL = dart.constFn(dart_rti.findType("html|MidiMessageEvent*")))(),
    EventStreamProviderOfMidiMessageEventL: () => (T.EventStreamProviderOfMidiMessageEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|MidiMessageEvent*>")))(),
    MapTobool: () => (T.MapTobool = dart.constFn(dart_rti.findType("core|bool(core|Map<@,@>)")))(),
    VoidToMidiInputMap: () => (T.VoidToMidiInputMap = dart.constFn(dart_rti.findType("html|MidiInputMap()")))(),
    StringToMapN: () => (T.StringToMapN = dart.constFn(dart_rti.findType("core|Map<@,@>?(core|String)")))(),
    dynamicToMapN: () => (T.dynamicToMapN = dart.constFn(dart_rti.findType("core|Map<@,@>?(@)")))(),
    IterableOfMap: () => (T.IterableOfMap = dart.constFn(dart_rti.findType("core|Iterable<core|Map<@,@>>")))(),
    VoidToMidiMessageEvent: () => (T.VoidToMidiMessageEvent = dart.constFn(dart_rti.findType("html|MidiMessageEvent()")))(),
    StringAndMapNToMidiMessageEvent: () => (T.StringAndMapNToMidiMessageEvent = dart.constFn(dart_rti.findType("html|MidiMessageEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToMidiMessageEvent: () => (T.dynamicAnddynamicToMidiMessageEvent = dart.constFn(dart_rti.findType("html|MidiMessageEvent(@,@)")))(),
    dynamicToMidiMessageEvent: () => (T.dynamicToMidiMessageEvent = dart.constFn(dart_rti.findType("html|MidiMessageEvent(@)")))(),
    VoidToMidiOutput: () => (T.VoidToMidiOutput = dart.constFn(dart_rti.findType("html|MidiOutput()")))(),
    Uint8ListAndnumNTovoid: () => (T.Uint8ListAndnumNTovoid = dart.constFn(dart_rti.findType("~(typed_data|Uint8List[core|num?])")))(),
    VoidToMidiOutputMap: () => (T.VoidToMidiOutputMap = dart.constFn(dart_rti.findType("html|MidiOutputMap()")))(),
    VoidToMimeType: () => (T.VoidToMimeType = dart.constFn(dart_rti.findType("html|MimeType()")))(),
    PluginN: () => (T.PluginN = dart.constFn(dart_rti.findType("html|Plugin?")))(),
    MimeType: () => (T.MimeType = dart.constFn(dart_rti.findType("html|MimeType")))(),
    VoidToMimeTypeArray: () => (T.VoidToMimeTypeArray = dart.constFn(dart_rti.findType("html|MimeTypeArray()")))(),
    intToMimeType: () => (T.intToMimeType = dart.constFn(dart_rti.findType("html|MimeType(core|int)")))(),
    intToMimeTypeN: () => (T.intToMimeTypeN = dart.constFn(dart_rti.findType("html|MimeType?(core|int)")))(),
    StringToMimeTypeN: () => (T.StringToMimeTypeN = dart.constFn(dart_rti.findType("html|MimeType?(core|String)")))(),
    VoidToModElement: () => (T.VoidToModElement = dart.constFn(dart_rti.findType("html|ModElement()")))(),
    MouseEvent: () => (T.MouseEvent = dart.constFn(dart_rti.findType("html|MouseEvent")))(),
    String__ToMouseEvent: () => (T.String__ToMouseEvent = dart.constFn(dart_rti.findType("html|MouseEvent(core|String{altKey:core|bool,button:core|int,canBubble:core|bool,cancelable:core|bool,clientX:core|int,clientY:core|int,ctrlKey:core|bool,detail:core|int,metaKey:core|bool,relatedTarget:html|EventTarget?,screenX:core|int,screenY:core|int,shiftKey:core|bool,view:html|Window?})")))(),
    StringAndMapNToMouseEvent: () => (T.StringAndMapNToMouseEvent = dart.constFn(dart_rti.findType("html|MouseEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToMouseEvent: () => (T.dynamicAnddynamicToMouseEvent = dart.constFn(dart_rti.findType("html|MouseEvent(@,@)")))(),
    dynamicToMouseEvent: () => (T.dynamicToMouseEvent = dart.constFn(dart_rti.findType("html|MouseEvent(@)")))(),
    StringNAndboolNAndboolN__Tovoid$2: () => (T.StringNAndboolNAndboolN__Tovoid$2 = dart.constFn(dart_rti.findType("~(core|String?,core|bool?,core|bool?,html|Window?,core|int?,core|int?,core|int?,core|int?,core|int?,core|bool?,core|bool?,core|bool?,core|bool?,core|int?,html|EventTarget?)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$2: () => (T.dynamicAnddynamicAnddynamic__Tovoid$2 = dart.constFn(dart_rti.findType("~(@,@,@,html|Window?,@,@,@,@,@,@,@,@,@,@,@)")))(),
    DataTransfer: () => (T.DataTransfer = dart.constFn(dart_rti.findType("html|DataTransfer")))(),
    VoidToMutationEvent: () => (T.VoidToMutationEvent = dart.constFn(dart_rti.findType("html|MutationEvent()")))(),
    StringNAndboolNAndboolN__Tovoid$3: () => (T.StringNAndboolNAndboolN__Tovoid$3 = dart.constFn(dart_rti.findType("~(core|String?,core|bool?,core|bool?,html|Node?,core|String?,core|String?,core|String?,core|int?)")))(),
    ListAndMutationObserverToNvoid: () => (T.ListAndMutationObserverToNvoid = dart.constFn(dart_rti.findType("~(core|List<@>,html|MutationObserver)?")))(),
    MutationObserver: () => (T.MutationObserver = dart.constFn(dart_rti.findType("html|MutationObserver")))(),
    NodeAndMapNTovoid: () => (T.NodeAndMapNTovoid = dart.constFn(dart_rti.findType("~(html|Node[core|Map<@,@>?])")))(),
    NodeAnddynamicTovoid: () => (T.NodeAnddynamicTovoid = dart.constFn(dart_rti.findType("~(html|Node,@)")))(),
    NodeTovoid: () => (T.NodeTovoid = dart.constFn(dart_rti.findType("~(html|Node)")))(),
    VoidToListOfMutationRecord: () => (T.VoidToListOfMutationRecord = dart.constFn(dart_rti.findType("core|List<html|MutationRecord>()")))(),
    Node__Tovoid: () => (T.Node__Tovoid = dart.constFn(dart_rti.findType("~(html|Node{attributeFilter:core|List<core|String>?,attributeOldValue:core|bool?,attributes:core|bool?,characterData:core|bool?,characterDataOldValue:core|bool?,childList:core|bool?,subtree:core|bool?})")))(),
    FnToMutationObserver: () => (T.FnToMutationObserver = dart.constFn(dart_rti.findType("html|MutationObserver(~(core|List<@>,html|MutationObserver))")))(),
    MapOfString$bool: () => (T.MapOfString$bool = dart.constFn(dart_rti.findType("core|Map<core|String,core|bool>")))(),
    boolL: () => (T.boolL = dart.constFn(dart_rti.findType("core|bool*")))(),
    VoidToMutationRecord: () => (T.VoidToMutationRecord = dart.constFn(dart_rti.findType("html|MutationRecord()")))(),
    VoidToNavigationPreloadManager: () => (T.VoidToNavigationPreloadManager = dart.constFn(dart_rti.findType("html|NavigationPreloadManager()")))(),
    MediaStreamTovoid: () => (T.MediaStreamTovoid = dart.constFn(dart_rti.findType("~(html|MediaStream)")))(),
    NavigatorUserMediaErrorTovoid: () => (T.NavigatorUserMediaErrorTovoid = dart.constFn(dart_rti.findType("~(html|NavigatorUserMediaError)")))(),
    RelatedApplication: () => (T.RelatedApplication = dart.constFn(dart_rti.findType("html|RelatedApplication")))(),
    VoidToNavigatorConcurrentHardware: () => (T.VoidToNavigatorConcurrentHardware = dart.constFn(dart_rti.findType("html|NavigatorConcurrentHardware()")))(),
    VoidToListOfGamepadN: () => (T.VoidToListOfGamepadN = dart.constFn(dart_rti.findType("core|List<html|Gamepad?>()")))(),
    __ToFutureOfMediaStream: () => (T.__ToFutureOfMediaStream = dart.constFn(dart_rti.findType("async|Future<html|MediaStream>({audio:@,video:@})")))(),
    dynamicAndFnAndFnTovoid: () => (T.dynamicAndFnAndFnTovoid = dart.constFn(dart_rti.findType("~(@,~(html|MediaStream),~(html|NavigatorUserMediaError))")))(),
    VoidToNavigator: () => (T.VoidToNavigator = dart.constFn(dart_rti.findType("html|Navigator()")))(),
    _BudgetServiceN: () => (T._BudgetServiceN = dart.constFn(dart_rti.findType("html|_BudgetService?")))(),
    _ClipboardN: () => (T._ClipboardN = dart.constFn(dart_rti.findType("html|_Clipboard?")))(),
    NetworkInformationN: () => (T.NetworkInformationN = dart.constFn(dart_rti.findType("html|NetworkInformation?")))(),
    CredentialsContainerN: () => (T.CredentialsContainerN = dart.constFn(dart_rti.findType("html|CredentialsContainer?")))(),
    Geolocation: () => (T.Geolocation = dart.constFn(dart_rti.findType("html|Geolocation")))(),
    MediaCapabilitiesN: () => (T.MediaCapabilitiesN = dart.constFn(dart_rti.findType("html|MediaCapabilities?")))(),
    MediaDevicesN: () => (T.MediaDevicesN = dart.constFn(dart_rti.findType("html|MediaDevices?")))(),
    MediaSessionN: () => (T.MediaSessionN = dart.constFn(dart_rti.findType("html|MediaSession?")))(),
    MimeTypeArrayN: () => (T.MimeTypeArrayN = dart.constFn(dart_rti.findType("html|MimeTypeArray?")))(),
    _NFCN: () => (T._NFCN = dart.constFn(dart_rti.findType("html|_NFC?")))(),
    PermissionsN: () => (T.PermissionsN = dart.constFn(dart_rti.findType("html|Permissions?")))(),
    PresentationN: () => (T.PresentationN = dart.constFn(dart_rti.findType("html|Presentation?")))(),
    ServiceWorkerContainerN: () => (T.ServiceWorkerContainerN = dart.constFn(dart_rti.findType("html|ServiceWorkerContainer?")))(),
    StorageManagerN: () => (T.StorageManagerN = dart.constFn(dart_rti.findType("html|StorageManager?")))(),
    VRN: () => (T.VRN = dart.constFn(dart_rti.findType("html|VR?")))(),
    DeprecatedStorageQuotaN: () => (T.DeprecatedStorageQuotaN = dart.constFn(dart_rti.findType("html|DeprecatedStorageQuota?")))(),
    VoidToFutureOfRelatedApplication: () => (T.VoidToFutureOfRelatedApplication = dart.constFn(dart_rti.findType("async|Future<html|RelatedApplication>()")))(),
    ListNOfStringToFuture: () => (T.ListNOfStringToFuture = dart.constFn(dart_rti.findType("async|Future<@>([core|List<core|String>?])")))(),
    ListToFuture: () => (T.ListToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|List<@>)")))(),
    StringAndListOfMapToFuture: () => (T.StringAndListOfMapToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|String,core|List<core|Map<@,@>>)")))(),
    StringAndObjectNTobool: () => (T.StringAndObjectNTobool = dart.constFn(dart_rti.findType("core|bool(core|String,core|Object?)")))(),
    VoidToNavigatorAutomationInformation: () => (T.VoidToNavigatorAutomationInformation = dart.constFn(dart_rti.findType("html|NavigatorAutomationInformation()")))(),
    VoidToNavigatorCookies: () => (T.VoidToNavigatorCookies = dart.constFn(dart_rti.findType("html|NavigatorCookies()")))(),
    VoidToNavigatorID: () => (T.VoidToNavigatorID = dart.constFn(dart_rti.findType("html|NavigatorID()")))(),
    VoidToNavigatorLanguage: () => (T.VoidToNavigatorLanguage = dart.constFn(dart_rti.findType("html|NavigatorLanguage()")))(),
    VoidToNavigatorOnLine: () => (T.VoidToNavigatorOnLine = dart.constFn(dart_rti.findType("html|NavigatorOnLine()")))(),
    VoidToNavigatorUserMediaError: () => (T.VoidToNavigatorUserMediaError = dart.constFn(dart_rti.findType("html|NavigatorUserMediaError()")))(),
    VoidToNetworkInformation: () => (T.VoidToNetworkInformation = dart.constFn(dart_rti.findType("html|NetworkInformation()")))(),
    FnAndboolTovoid$5: () => (T.FnAndboolTovoid$5 = dart.constFn(dart_rti.findType("~(core|bool(html|Node),core|bool)")))(),
    VoidToNodeFilter: () => (T.VoidToNodeFilter = dart.constFn(dart_rti.findType("html|NodeFilter()")))(),
    NodeAndintToNodeIterator: () => (T.NodeAndintToNodeIterator = dart.constFn(dart_rti.findType("html|NodeIterator(html|Node,core|int)")))(),
    VoidToNodeIterator: () => (T.VoidToNodeIterator = dart.constFn(dart_rti.findType("html|NodeIterator()")))(),
    VoidToNodeN: () => (T.VoidToNodeN = dart.constFn(dart_rti.findType("html|Node?()")))(),
    VoidToNodeList: () => (T.VoidToNodeList = dart.constFn(dart_rti.findType("html|NodeList()")))(),
    intToNodeN: () => (T.intToNodeN = dart.constFn(dart_rti.findType("html|Node?(core|int)")))(),
    VoidToNonDocumentTypeChildNode: () => (T.VoidToNonDocumentTypeChildNode = dart.constFn(dart_rti.findType("html|NonDocumentTypeChildNode()")))(),
    VoidToNonElementParentNode: () => (T.VoidToNonElementParentNode = dart.constFn(dart_rti.findType("html|NonElementParentNode()")))(),
    VoidToNoncedElement: () => (T.VoidToNoncedElement = dart.constFn(dart_rti.findType("html|NoncedElement()")))(),
    String__ToNotification: () => (T.String__ToNotification = dart.constFn(dart_rti.findType("html|Notification(core|String{body:core|String?,dir:core|String?,icon:core|String?,lang:core|String?,tag:core|String?})")))(),
    VoidToNotification: () => (T.VoidToNotification = dart.constFn(dart_rti.findType("html|Notification()")))(),
    StringAndMapNToNotification: () => (T.StringAndMapNToNotification = dart.constFn(dart_rti.findType("html|Notification(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToNotification: () => (T.dynamicAnddynamicToNotification = dart.constFn(dart_rti.findType("html|Notification(@,@)")))(),
    dynamicToNotification: () => (T.dynamicToNotification = dart.constFn(dart_rti.findType("html|Notification(@)")))(),
    FnToFuture: () => (T.FnToFuture = dart.constFn(dart_rti.findType("async|Future<@>([~(core|String)?])")))(),
    VoidToNotificationEvent: () => (T.VoidToNotificationEvent = dart.constFn(dart_rti.findType("html|NotificationEvent()")))(),
    StringAndMapToNotificationEvent: () => (T.StringAndMapToNotificationEvent = dart.constFn(dart_rti.findType("html|NotificationEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToNotificationEvent: () => (T.dynamicAnddynamicToNotificationEvent = dart.constFn(dart_rti.findType("html|NotificationEvent(@,@)")))(),
    NotificationN: () => (T.NotificationN = dart.constFn(dart_rti.findType("html|Notification?")))(),
    VoidToOListElement: () => (T.VoidToOListElement = dart.constFn(dart_rti.findType("html|OListElement()")))(),
    ObjectElement: () => (T.ObjectElement = dart.constFn(dart_rti.findType("html|ObjectElement")))(),
    VoidToObjectElement: () => (T.VoidToObjectElement = dart.constFn(dart_rti.findType("html|ObjectElement()")))(),
    intAndintToOffscreenCanvas: () => (T.intAndintToOffscreenCanvas = dart.constFn(dart_rti.findType("html|OffscreenCanvas(core|int,core|int)")))(),
    dynamicAnddynamicToOffscreenCanvas: () => (T.dynamicAnddynamicToOffscreenCanvas = dart.constFn(dart_rti.findType("html|OffscreenCanvas(@,@)")))(),
    VoidToOffscreenCanvasRenderingContext2D: () => (T.VoidToOffscreenCanvasRenderingContext2D = dart.constFn(dart_rti.findType("html|OffscreenCanvasRenderingContext2D()")))(),
    OffscreenCanvasN: () => (T.OffscreenCanvasN = dart.constFn(dart_rti.findType("html|OffscreenCanvas?")))(),
    dynamicAndStringToCanvasPatternN: () => (T.dynamicAndStringToCanvasPatternN = dart.constFn(dart_rti.findType("html|CanvasPattern?(@,core|String)")))(),
    dynamicAndnumAndnum__Tovoid: () => (T.dynamicAndnumAndnum__Tovoid = dart.constFn(dart_rti.findType("~(@,core|num,core|num[core|num?,core|num?,core|num?,core|num?,core|num?,core|num?])")))(),
    VoidToOptGroupElement: () => (T.VoidToOptGroupElement = dart.constFn(dart_rti.findType("html|OptGroupElement()")))(),
    __ToOptionElement: () => (T.__ToOptionElement = dart.constFn(dart_rti.findType("html|OptionElement({data:core|String,selected:core|bool,value:core|String})")))(),
    StringNAndStringNAndboolN__ToOptionElement: () => (T.StringNAndStringNAndboolN__ToOptionElement = dart.constFn(dart_rti.findType("html|OptionElement([core|String?,core|String?,core|bool?,core|bool?])")))(),
    dynamicAnddynamicAnddynamic__ToOptionElement: () => (T.dynamicAnddynamicAnddynamic__ToOptionElement = dart.constFn(dart_rti.findType("html|OptionElement(@,@,@,@)")))(),
    dynamicAnddynamicAnddynamicToOptionElement: () => (T.dynamicAnddynamicAnddynamicToOptionElement = dart.constFn(dart_rti.findType("html|OptionElement(@,@,@)")))(),
    dynamicAnddynamicToOptionElement: () => (T.dynamicAnddynamicToOptionElement = dart.constFn(dart_rti.findType("html|OptionElement(@,@)")))(),
    dynamicToOptionElement: () => (T.dynamicToOptionElement = dart.constFn(dart_rti.findType("html|OptionElement(@)")))(),
    VoidToOptionElement: () => (T.VoidToOptionElement = dart.constFn(dart_rti.findType("html|OptionElement()")))(),
    OutputElement: () => (T.OutputElement = dart.constFn(dart_rti.findType("html|OutputElement")))(),
    VoidToOutputElement: () => (T.VoidToOutputElement = dart.constFn(dart_rti.findType("html|OutputElement()")))(),
    ValidityStateN: () => (T.ValidityStateN = dart.constFn(dart_rti.findType("html|ValidityState?")))(),
    VoidToOverconstrainedError: () => (T.VoidToOverconstrainedError = dart.constFn(dart_rti.findType("html|OverconstrainedError()")))(),
    StringAndStringToOverconstrainedError: () => (T.StringAndStringToOverconstrainedError = dart.constFn(dart_rti.findType("html|OverconstrainedError(core|String,core|String)")))(),
    dynamicAnddynamicToOverconstrainedError: () => (T.dynamicAnddynamicToOverconstrainedError = dart.constFn(dart_rti.findType("html|OverconstrainedError(@,@)")))(),
    VoidToPageTransitionEvent: () => (T.VoidToPageTransitionEvent = dart.constFn(dart_rti.findType("html|PageTransitionEvent()")))(),
    StringAndMapNToPageTransitionEvent: () => (T.StringAndMapNToPageTransitionEvent = dart.constFn(dart_rti.findType("html|PageTransitionEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToPageTransitionEvent: () => (T.dynamicAnddynamicToPageTransitionEvent = dart.constFn(dart_rti.findType("html|PageTransitionEvent(@,@)")))(),
    dynamicToPageTransitionEvent: () => (T.dynamicToPageTransitionEvent = dart.constFn(dart_rti.findType("html|PageTransitionEvent(@)")))(),
    VoidToPaintRenderingContext2D: () => (T.VoidToPaintRenderingContext2D = dart.constFn(dart_rti.findType("html|PaintRenderingContext2D()")))(),
    VoidToPaintSize: () => (T.VoidToPaintSize = dart.constFn(dart_rti.findType("html|PaintSize()")))(),
    VoidToPaintWorkletGlobalScope: () => (T.VoidToPaintWorkletGlobalScope = dart.constFn(dart_rti.findType("html|PaintWorkletGlobalScope()")))(),
    VoidToParagraphElement: () => (T.VoidToParagraphElement = dart.constFn(dart_rti.findType("html|ParagraphElement()")))(),
    VoidToParamElement: () => (T.VoidToParamElement = dart.constFn(dart_rti.findType("html|ParamElement()")))(),
    VoidToParentNode: () => (T.VoidToParentNode = dart.constFn(dart_rti.findType("html|ParentNode()")))(),
    FormElement: () => (T.FormElement = dart.constFn(dart_rti.findType("html|FormElement")))(),
    VoidToPasswordCredential: () => (T.VoidToPasswordCredential = dart.constFn(dart_rti.findType("html|PasswordCredential()")))(),
    dynamicToPasswordCredential: () => (T.dynamicToPasswordCredential = dart.constFn(dart_rti.findType("html|PasswordCredential(@)")))(),
    Path2D: () => (T.Path2D = dart.constFn(dart_rti.findType("html|Path2D")))(),
    VoidToPath2D: () => (T.VoidToPath2D = dart.constFn(dart_rti.findType("html|Path2D()")))(),
    dynamicToPath2D: () => (T.dynamicToPath2D = dart.constFn(dart_rti.findType("html|Path2D([@])")))(),
    dynamicToPath2D$1: () => (T.dynamicToPath2D$1 = dart.constFn(dart_rti.findType("html|Path2D(@)")))(),
    Path2DAndMatrixNTovoid: () => (T.Path2DAndMatrixNTovoid = dart.constFn(dart_rti.findType("~(html|Path2D[svg|Matrix?])")))(),
    VoidToPaymentAddress: () => (T.VoidToPaymentAddress = dart.constFn(dart_rti.findType("html|PaymentAddress()")))(),
    VoidToPaymentInstruments: () => (T.VoidToPaymentInstruments = dart.constFn(dart_rti.findType("html|PaymentInstruments()")))(),
    StringToFutureOfMapNOfString$dynamic: () => (T.StringToFutureOfMapNOfString$dynamic = dart.constFn(dart_rti.findType("async|Future<core|Map<core|String,@>?>(core|String)")))(),
    StringAndMapToFuture: () => (T.StringAndMapToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|String,core|Map<@,@>)")))(),
    VoidToPaymentManager: () => (T.VoidToPaymentManager = dart.constFn(dart_rti.findType("html|PaymentManager()")))(),
    PaymentInstrumentsN: () => (T.PaymentInstrumentsN = dart.constFn(dart_rti.findType("html|PaymentInstruments?")))(),
    PaymentResponse: () => (T.PaymentResponse = dart.constFn(dart_rti.findType("html|PaymentResponse")))(),
    ListOfMapAndMapAndMapNToPaymentRequest: () => (T.ListOfMapAndMapAndMapNToPaymentRequest = dart.constFn(dart_rti.findType("html|PaymentRequest(core|List<core|Map<@,@>>,core|Map<@,@>[core|Map<@,@>?])")))(),
    dynamicAnddynamicAnddynamicToPaymentRequest: () => (T.dynamicAnddynamicAnddynamicToPaymentRequest = dart.constFn(dart_rti.findType("html|PaymentRequest(@,@,@)")))(),
    dynamicAnddynamicToPaymentRequest: () => (T.dynamicAnddynamicToPaymentRequest = dart.constFn(dart_rti.findType("html|PaymentRequest(@,@)")))(),
    VoidToPaymentRequest: () => (T.VoidToPaymentRequest = dart.constFn(dart_rti.findType("html|PaymentRequest()")))(),
    PaymentAddressN: () => (T.PaymentAddressN = dart.constFn(dart_rti.findType("html|PaymentAddress?")))(),
    VoidToFutureOfPaymentResponse: () => (T.VoidToFutureOfPaymentResponse = dart.constFn(dart_rti.findType("async|Future<html|PaymentResponse>()")))(),
    VoidToPaymentRequestEvent: () => (T.VoidToPaymentRequestEvent = dart.constFn(dart_rti.findType("html|PaymentRequestEvent()")))(),
    StringAndMapToPaymentRequestEvent: () => (T.StringAndMapToPaymentRequestEvent = dart.constFn(dart_rti.findType("html|PaymentRequestEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToPaymentRequestEvent: () => (T.dynamicAnddynamicToPaymentRequestEvent = dart.constFn(dart_rti.findType("html|PaymentRequestEvent(@,@)")))(),
    VoidToPaymentRequestUpdateEvent: () => (T.VoidToPaymentRequestUpdateEvent = dart.constFn(dart_rti.findType("html|PaymentRequestUpdateEvent()")))(),
    StringAndMapNToPaymentRequestUpdateEvent: () => (T.StringAndMapNToPaymentRequestUpdateEvent = dart.constFn(dart_rti.findType("html|PaymentRequestUpdateEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToPaymentRequestUpdateEvent: () => (T.dynamicAnddynamicToPaymentRequestUpdateEvent = dart.constFn(dart_rti.findType("html|PaymentRequestUpdateEvent(@,@)")))(),
    dynamicToPaymentRequestUpdateEvent: () => (T.dynamicToPaymentRequestUpdateEvent = dart.constFn(dart_rti.findType("html|PaymentRequestUpdateEvent(@)")))(),
    VoidToPaymentResponse: () => (T.VoidToPaymentResponse = dart.constFn(dart_rti.findType("html|PaymentResponse()")))(),
    StringNToFuture: () => (T.StringNToFuture = dart.constFn(dart_rti.findType("async|Future<@>([core|String?])")))(),
    VoidToPerformance: () => (T.VoidToPerformance = dart.constFn(dart_rti.findType("html|Performance()")))(),
    MemoryInfoN: () => (T.MemoryInfoN = dart.constFn(dart_rti.findType("html|MemoryInfo?")))(),
    PerformanceNavigation: () => (T.PerformanceNavigation = dart.constFn(dart_rti.findType("html|PerformanceNavigation")))(),
    PerformanceTiming: () => (T.PerformanceTiming = dart.constFn(dart_rti.findType("html|PerformanceTiming")))(),
    VoidToListOfPerformanceEntry: () => (T.VoidToListOfPerformanceEntry = dart.constFn(dart_rti.findType("core|List<html|PerformanceEntry>()")))(),
    StringAndStringNToListOfPerformanceEntry: () => (T.StringAndStringNToListOfPerformanceEntry = dart.constFn(dart_rti.findType("core|List<html|PerformanceEntry>(core|String,core|String?)")))(),
    StringToListOfPerformanceEntry: () => (T.StringToListOfPerformanceEntry = dart.constFn(dart_rti.findType("core|List<html|PerformanceEntry>(core|String)")))(),
    StringAndMapNToPerformanceEntryN: () => (T.StringAndMapNToPerformanceEntryN = dart.constFn(dart_rti.findType("html|PerformanceEntry?(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToPerformanceEntryN: () => (T.dynamicAnddynamicToPerformanceEntryN = dart.constFn(dart_rti.findType("html|PerformanceEntry?(@,@)")))(),
    dynamicToPerformanceEntryN: () => (T.dynamicToPerformanceEntryN = dart.constFn(dart_rti.findType("html|PerformanceEntry?(@)")))(),
    StringAnddynamicAndStringNToPerformanceMeasureN: () => (T.StringAnddynamicAndStringNToPerformanceMeasureN = dart.constFn(dart_rti.findType("html|PerformanceMeasure?(core|String[@,core|String?])")))(),
    dynamicToPerformanceMeasureN: () => (T.dynamicToPerformanceMeasureN = dart.constFn(dart_rti.findType("html|PerformanceMeasure?(@)")))(),
    dynamicAndStringNToPerformanceMeasureN: () => (T.dynamicAndStringNToPerformanceMeasureN = dart.constFn(dart_rti.findType("html|PerformanceMeasure?(@,core|String?)")))(),
    dynamicAndStringNAnddynamicToPerformanceMeasureN: () => (T.dynamicAndStringNAnddynamicToPerformanceMeasureN = dart.constFn(dart_rti.findType("html|PerformanceMeasure?(@,core|String?,@)")))(),
    dynamicAnddynamicToPerformanceMeasureN: () => (T.dynamicAnddynamicToPerformanceMeasureN = dart.constFn(dart_rti.findType("html|PerformanceMeasure?(@,@)")))(),
    VoidToPerformanceEntry: () => (T.VoidToPerformanceEntry = dart.constFn(dart_rti.findType("html|PerformanceEntry()")))(),
    VoidToPerformanceLongTaskTiming: () => (T.VoidToPerformanceLongTaskTiming = dart.constFn(dart_rti.findType("html|PerformanceLongTaskTiming()")))(),
    ListNOfTaskAttributionTiming: () => (T.ListNOfTaskAttributionTiming = dart.constFn(dart_rti.findType("core|List<html|TaskAttributionTiming>?")))(),
    VoidToPerformanceMark: () => (T.VoidToPerformanceMark = dart.constFn(dart_rti.findType("html|PerformanceMark()")))(),
    VoidToPerformanceMeasure: () => (T.VoidToPerformanceMeasure = dart.constFn(dart_rti.findType("html|PerformanceMeasure()")))(),
    VoidToPerformanceNavigation: () => (T.VoidToPerformanceNavigation = dart.constFn(dart_rti.findType("html|PerformanceNavigation()")))(),
    VoidToPerformanceResourceTiming: () => (T.VoidToPerformanceResourceTiming = dart.constFn(dart_rti.findType("html|PerformanceResourceTiming()")))(),
    ListNOfPerformanceServerTiming: () => (T.ListNOfPerformanceServerTiming = dart.constFn(dart_rti.findType("core|List<html|PerformanceServerTiming>?")))(),
    VoidToPerformanceNavigationTiming: () => (T.VoidToPerformanceNavigationTiming = dart.constFn(dart_rti.findType("html|PerformanceNavigationTiming()")))(),
    PerformanceObserverEntryListAndPerformanceObserverTovoid: () => (T.PerformanceObserverEntryListAndPerformanceObserverTovoid = dart.constFn(dart_rti.findType("~(html|PerformanceObserverEntryList,html|PerformanceObserver)")))(),
    VoidToPerformanceObserver: () => (T.VoidToPerformanceObserver = dart.constFn(dart_rti.findType("html|PerformanceObserver()")))(),
    FnToPerformanceObserver: () => (T.FnToPerformanceObserver = dart.constFn(dart_rti.findType("html|PerformanceObserver(~(html|PerformanceObserverEntryList,html|PerformanceObserver))")))(),
    dynamicToPerformanceObserver: () => (T.dynamicToPerformanceObserver = dart.constFn(dart_rti.findType("html|PerformanceObserver(@)")))(),
    VoidToPerformanceObserverEntryList: () => (T.VoidToPerformanceObserverEntryList = dart.constFn(dart_rti.findType("html|PerformanceObserverEntryList()")))(),
    VoidToPerformancePaintTiming: () => (T.VoidToPerformancePaintTiming = dart.constFn(dart_rti.findType("html|PerformancePaintTiming()")))(),
    VoidToPerformanceServerTiming: () => (T.VoidToPerformanceServerTiming = dart.constFn(dart_rti.findType("html|PerformanceServerTiming()")))(),
    VoidToPerformanceTiming: () => (T.VoidToPerformanceTiming = dart.constFn(dart_rti.findType("html|PerformanceTiming()")))(),
    VoidToPermissionStatus: () => (T.VoidToPermissionStatus = dart.constFn(dart_rti.findType("html|PermissionStatus()")))(),
    PermissionStatus: () => (T.PermissionStatus = dart.constFn(dart_rti.findType("html|PermissionStatus")))(),
    VoidToPermissions: () => (T.VoidToPermissions = dart.constFn(dart_rti.findType("html|Permissions()")))(),
    MapToFutureOfPermissionStatus: () => (T.MapToFutureOfPermissionStatus = dart.constFn(dart_rti.findType("async|Future<html|PermissionStatus>(core|Map<@,@>)")))(),
    ListOfMapToFutureOfPermissionStatus: () => (T.ListOfMapToFutureOfPermissionStatus = dart.constFn(dart_rti.findType("async|Future<html|PermissionStatus>(core|List<core|Map<@,@>>)")))(),
    VoidToPhotoCapabilities: () => (T.VoidToPhotoCapabilities = dart.constFn(dart_rti.findType("html|PhotoCapabilities()")))(),
    MediaSettingsRangeN: () => (T.MediaSettingsRangeN = dart.constFn(dart_rti.findType("html|MediaSettingsRange?")))(),
    VoidToPictureElement: () => (T.VoidToPictureElement = dart.constFn(dart_rti.findType("html|PictureElement()")))(),
    VoidToPlugin: () => (T.VoidToPlugin = dart.constFn(dart_rti.findType("html|Plugin()")))(),
    Plugin: () => (T.Plugin = dart.constFn(dart_rti.findType("html|Plugin")))(),
    VoidToPluginArray: () => (T.VoidToPluginArray = dart.constFn(dart_rti.findType("html|PluginArray()")))(),
    intToPlugin: () => (T.intToPlugin = dart.constFn(dart_rti.findType("html|Plugin(core|int)")))(),
    intToPluginN: () => (T.intToPluginN = dart.constFn(dart_rti.findType("html|Plugin?(core|int)")))(),
    StringToPluginN: () => (T.StringToPluginN = dart.constFn(dart_rti.findType("html|Plugin?(core|String)")))(),
    boolNTovoid$1: () => (T.boolNTovoid$1 = dart.constFn(dart_rti.findType("~(core|bool?)")))(),
    PointerEvent: () => (T.PointerEvent = dart.constFn(dart_rti.findType("html|PointerEvent")))(),
    VoidToPointerEvent: () => (T.VoidToPointerEvent = dart.constFn(dart_rti.findType("html|PointerEvent()")))(),
    StringAndMapNToPointerEvent: () => (T.StringAndMapNToPointerEvent = dart.constFn(dart_rti.findType("html|PointerEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToPointerEvent: () => (T.dynamicAnddynamicToPointerEvent = dart.constFn(dart_rti.findType("html|PointerEvent(@,@)")))(),
    dynamicToPointerEvent: () => (T.dynamicToPointerEvent = dart.constFn(dart_rti.findType("html|PointerEvent(@)")))(),
    VoidToListOfPointerEvent: () => (T.VoidToListOfPointerEvent = dart.constFn(dart_rti.findType("core|List<html|PointerEvent>()")))(),
    VoidToPopStateEvent: () => (T.VoidToPopStateEvent = dart.constFn(dart_rti.findType("html|PopStateEvent()")))(),
    StringAndMapNToPopStateEvent: () => (T.StringAndMapNToPopStateEvent = dart.constFn(dart_rti.findType("html|PopStateEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToPopStateEvent: () => (T.dynamicAnddynamicToPopStateEvent = dart.constFn(dart_rti.findType("html|PopStateEvent(@,@)")))(),
    dynamicToPopStateEvent: () => (T.dynamicToPopStateEvent = dart.constFn(dart_rti.findType("html|PopStateEvent(@)")))(),
    VoidToPositionError: () => (T.VoidToPositionError = dart.constFn(dart_rti.findType("html|PositionError()")))(),
    VoidToPreElement: () => (T.VoidToPreElement = dart.constFn(dart_rti.findType("html|PreElement()")))(),
    VoidToPresentation: () => (T.VoidToPresentation = dart.constFn(dart_rti.findType("html|Presentation()")))(),
    PresentationRequestN: () => (T.PresentationRequestN = dart.constFn(dart_rti.findType("html|PresentationRequest?")))(),
    PresentationReceiverN: () => (T.PresentationReceiverN = dart.constFn(dart_rti.findType("html|PresentationReceiver?")))(),
    VoidToPresentationAvailability: () => (T.VoidToPresentationAvailability = dart.constFn(dart_rti.findType("html|PresentationAvailability()")))(),
    VoidToPresentationConnection: () => (T.VoidToPresentationConnection = dart.constFn(dart_rti.findType("html|PresentationConnection()")))(),
    VoidToPresentationConnectionAvailableEvent: () => (T.VoidToPresentationConnectionAvailableEvent = dart.constFn(dart_rti.findType("html|PresentationConnectionAvailableEvent()")))(),
    StringAndMapToPresentationConnectionAvailableEvent: () => (T.StringAndMapToPresentationConnectionAvailableEvent = dart.constFn(dart_rti.findType("html|PresentationConnectionAvailableEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToPresentationConnectionAvailableEvent: () => (T.dynamicAnddynamicToPresentationConnectionAvailableEvent = dart.constFn(dart_rti.findType("html|PresentationConnectionAvailableEvent(@,@)")))(),
    PresentationConnectionN: () => (T.PresentationConnectionN = dart.constFn(dart_rti.findType("html|PresentationConnection?")))(),
    VoidToPresentationConnectionCloseEvent: () => (T.VoidToPresentationConnectionCloseEvent = dart.constFn(dart_rti.findType("html|PresentationConnectionCloseEvent()")))(),
    StringAndMapToPresentationConnectionCloseEvent: () => (T.StringAndMapToPresentationConnectionCloseEvent = dart.constFn(dart_rti.findType("html|PresentationConnectionCloseEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToPresentationConnectionCloseEvent: () => (T.dynamicAnddynamicToPresentationConnectionCloseEvent = dart.constFn(dart_rti.findType("html|PresentationConnectionCloseEvent(@,@)")))(),
    VoidToPresentationConnectionList: () => (T.VoidToPresentationConnectionList = dart.constFn(dart_rti.findType("html|PresentationConnectionList()")))(),
    ListNOfPresentationConnection: () => (T.ListNOfPresentationConnection = dart.constFn(dart_rti.findType("core|List<html|PresentationConnection>?")))(),
    PresentationConnectionList: () => (T.PresentationConnectionList = dart.constFn(dart_rti.findType("html|PresentationConnectionList")))(),
    VoidToPresentationReceiver: () => (T.VoidToPresentationReceiver = dart.constFn(dart_rti.findType("html|PresentationReceiver()")))(),
    FutureOfPresentationConnectionList: () => (T.FutureOfPresentationConnectionList = dart.constFn(dart_rti.findType("async|Future<html|PresentationConnectionList>")))(),
    PresentationAvailability: () => (T.PresentationAvailability = dart.constFn(dart_rti.findType("html|PresentationAvailability")))(),
    PresentationConnection: () => (T.PresentationConnection = dart.constFn(dart_rti.findType("html|PresentationConnection")))(),
    VoidToPresentationRequest: () => (T.VoidToPresentationRequest = dart.constFn(dart_rti.findType("html|PresentationRequest()")))(),
    dynamicToPresentationRequest: () => (T.dynamicToPresentationRequest = dart.constFn(dart_rti.findType("html|PresentationRequest(@)")))(),
    VoidToFutureOfPresentationAvailability: () => (T.VoidToFutureOfPresentationAvailability = dart.constFn(dart_rti.findType("async|Future<html|PresentationAvailability>()")))(),
    StringToFutureOfPresentationConnection: () => (T.StringToFutureOfPresentationConnection = dart.constFn(dart_rti.findType("async|Future<html|PresentationConnection>(core|String)")))(),
    VoidToFutureOfPresentationConnection: () => (T.VoidToFutureOfPresentationConnection = dart.constFn(dart_rti.findType("async|Future<html|PresentationConnection>()")))(),
    VoidToProcessingInstruction: () => (T.VoidToProcessingInstruction = dart.constFn(dart_rti.findType("html|ProcessingInstruction()")))(),
    ProgressElement: () => (T.ProgressElement = dart.constFn(dart_rti.findType("html|ProgressElement")))(),
    VoidToProgressElement: () => (T.VoidToProgressElement = dart.constFn(dart_rti.findType("html|ProgressElement()")))(),
    VoidToProgressEvent: () => (T.VoidToProgressEvent = dart.constFn(dart_rti.findType("html|ProgressEvent()")))(),
    StringAndMapNToProgressEvent: () => (T.StringAndMapNToProgressEvent = dart.constFn(dart_rti.findType("html|ProgressEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToProgressEvent: () => (T.dynamicAnddynamicToProgressEvent = dart.constFn(dart_rti.findType("html|ProgressEvent(@,@)")))(),
    dynamicToProgressEvent: () => (T.dynamicToProgressEvent = dart.constFn(dart_rti.findType("html|ProgressEvent(@)")))(),
    VoidToPromiseRejectionEvent: () => (T.VoidToPromiseRejectionEvent = dart.constFn(dart_rti.findType("html|PromiseRejectionEvent()")))(),
    StringAndMapToPromiseRejectionEvent: () => (T.StringAndMapToPromiseRejectionEvent = dart.constFn(dart_rti.findType("html|PromiseRejectionEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToPromiseRejectionEvent: () => (T.dynamicAnddynamicToPromiseRejectionEvent = dart.constFn(dart_rti.findType("html|PromiseRejectionEvent(@,@)")))(),
    VoidToPublicKeyCredential: () => (T.VoidToPublicKeyCredential = dart.constFn(dart_rti.findType("html|PublicKeyCredential()")))(),
    AuthenticatorResponseN: () => (T.AuthenticatorResponseN = dart.constFn(dart_rti.findType("html|AuthenticatorResponse?")))(),
    VoidToPushEvent: () => (T.VoidToPushEvent = dart.constFn(dart_rti.findType("html|PushEvent()")))(),
    StringAndMapNToPushEvent: () => (T.StringAndMapNToPushEvent = dart.constFn(dart_rti.findType("html|PushEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToPushEvent: () => (T.dynamicAnddynamicToPushEvent = dart.constFn(dart_rti.findType("html|PushEvent(@,@)")))(),
    dynamicToPushEvent: () => (T.dynamicToPushEvent = dart.constFn(dart_rti.findType("html|PushEvent(@)")))(),
    PushMessageDataN: () => (T.PushMessageDataN = dart.constFn(dart_rti.findType("html|PushMessageData?")))(),
    PushSubscription: () => (T.PushSubscription = dart.constFn(dart_rti.findType("html|PushSubscription")))(),
    VoidToPushManager: () => (T.VoidToPushManager = dart.constFn(dart_rti.findType("html|PushManager()")))(),
    VoidToFutureOfPushSubscription: () => (T.VoidToFutureOfPushSubscription = dart.constFn(dart_rti.findType("async|Future<html|PushSubscription>()")))(),
    MapNToFutureOfPushSubscription: () => (T.MapNToFutureOfPushSubscription = dart.constFn(dart_rti.findType("async|Future<html|PushSubscription>([core|Map<@,@>?])")))(),
    VoidToPushMessageData: () => (T.VoidToPushMessageData = dart.constFn(dart_rti.findType("html|PushMessageData()")))(),
    VoidToByteBuffer: () => (T.VoidToByteBuffer = dart.constFn(dart_rti.findType("typed_data|ByteBuffer()")))(),
    VoidToPushSubscription: () => (T.VoidToPushSubscription = dart.constFn(dart_rti.findType("html|PushSubscription()")))(),
    PushSubscriptionOptionsN: () => (T.PushSubscriptionOptionsN = dart.constFn(dart_rti.findType("html|PushSubscriptionOptions?")))(),
    StringToByteBufferN: () => (T.StringToByteBufferN = dart.constFn(dart_rti.findType("typed_data|ByteBuffer?(core|String)")))(),
    VoidToPushSubscriptionOptions: () => (T.VoidToPushSubscriptionOptions = dart.constFn(dart_rti.findType("html|PushSubscriptionOptions()")))(),
    VoidToQuoteElement: () => (T.VoidToQuoteElement = dart.constFn(dart_rti.findType("html|QuoteElement()")))(),
    PointOfnumToRange: () => (T.PointOfnumToRange = dart.constFn(dart_rti.findType("html|Range(math|Point<core|num>)")))(),
    intAndRangeToint: () => (T.intAndRangeToint = dart.constFn(dart_rti.findType("core|int(core|int,html|Range)")))(),
    NodeAndintToint: () => (T.NodeAndintToint = dart.constFn(dart_rti.findType("core|int(html|Node,core|int)")))(),
    StringToDocumentFragment: () => (T.StringToDocumentFragment = dart.constFn(dart_rti.findType("html|DocumentFragment(core|String)")))(),
    NodeAndintTobool: () => (T.NodeAndintTobool = dart.constFn(dart_rti.findType("core|bool(html|Node,core|int)")))(),
    NodeAndintTovoid$1: () => (T.NodeAndintTovoid$1 = dart.constFn(dart_rti.findType("~(html|Node,core|int)")))(),
    VoidToRelatedApplication: () => (T.VoidToRelatedApplication = dart.constFn(dart_rti.findType("html|RelatedApplication()")))(),
    VoidToRelativeOrientationSensor: () => (T.VoidToRelativeOrientationSensor = dart.constFn(dart_rti.findType("html|RelativeOrientationSensor()")))(),
    MapNToRelativeOrientationSensor: () => (T.MapNToRelativeOrientationSensor = dart.constFn(dart_rti.findType("html|RelativeOrientationSensor([core|Map<@,@>?])")))(),
    dynamicToRelativeOrientationSensor: () => (T.dynamicToRelativeOrientationSensor = dart.constFn(dart_rti.findType("html|RelativeOrientationSensor(@)")))(),
    VoidToRemotePlayback: () => (T.VoidToRemotePlayback = dart.constFn(dart_rti.findType("html|RemotePlayback()")))(),
    intNToFuture: () => (T.intNToFuture = dart.constFn(dart_rti.findType("async|Future<@>([core|int?])")))(),
    FnToFutureOfint: () => (T.FnToFutureOfint = dart.constFn(dart_rti.findType("async|Future<core|int>(~(core|bool))")))(),
    ListAndReportingObserverTovoid: () => (T.ListAndReportingObserverTovoid = dart.constFn(dart_rti.findType("~(core|List<@>,html|ReportingObserver)")))(),
    VoidToReportingObserver: () => (T.VoidToReportingObserver = dart.constFn(dart_rti.findType("html|ReportingObserver()")))(),
    FnToReportingObserver: () => (T.FnToReportingObserver = dart.constFn(dart_rti.findType("html|ReportingObserver(~(core|List<@>,html|ReportingObserver))")))(),
    dynamicToReportingObserver: () => (T.dynamicToReportingObserver = dart.constFn(dart_rti.findType("html|ReportingObserver(@)")))(),
    ListAndResizeObserverTovoid: () => (T.ListAndResizeObserverTovoid = dart.constFn(dart_rti.findType("~(core|List<@>,html|ResizeObserver)")))(),
    VoidToResizeObserver: () => (T.VoidToResizeObserver = dart.constFn(dart_rti.findType("html|ResizeObserver()")))(),
    FnToResizeObserver: () => (T.FnToResizeObserver = dart.constFn(dart_rti.findType("html|ResizeObserver(~(core|List<@>,html|ResizeObserver))")))(),
    dynamicToResizeObserver: () => (T.dynamicToResizeObserver = dart.constFn(dart_rti.findType("html|ResizeObserver(@)")))(),
    VoidToResizeObserverEntry: () => (T.VoidToResizeObserverEntry = dart.constFn(dart_rti.findType("html|ResizeObserverEntry()")))(),
    VoidToRtcCertificate: () => (T.VoidToRtcCertificate = dart.constFn(dart_rti.findType("html|RtcCertificate()")))(),
    VoidToListOfMap: () => (T.VoidToListOfMap = dart.constFn(dart_rti.findType("core|List<core|Map<@,@>>()")))(),
    VoidToRtcDataChannel: () => (T.VoidToRtcDataChannel = dart.constFn(dart_rti.findType("html|RtcDataChannel()")))(),
    ByteBufferTovoid: () => (T.ByteBufferTovoid = dart.constFn(dart_rti.findType("~(typed_data|ByteBuffer)")))(),
    TypedDataTovoid: () => (T.TypedDataTovoid = dart.constFn(dart_rti.findType("~(typed_data|TypedData)")))(),
    VoidToRtcDataChannelEvent: () => (T.VoidToRtcDataChannelEvent = dart.constFn(dart_rti.findType("html|RtcDataChannelEvent()")))(),
    StringAndMapToRtcDataChannelEvent: () => (T.StringAndMapToRtcDataChannelEvent = dart.constFn(dart_rti.findType("html|RtcDataChannelEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToRtcDataChannelEvent: () => (T.dynamicAnddynamicToRtcDataChannelEvent = dart.constFn(dart_rti.findType("html|RtcDataChannelEvent(@,@)")))(),
    RtcDataChannelN: () => (T.RtcDataChannelN = dart.constFn(dart_rti.findType("html|RtcDataChannel?")))(),
    VoidToRtcDtmfSender: () => (T.VoidToRtcDtmfSender = dart.constFn(dart_rti.findType("html|RtcDtmfSender()")))(),
    StringAndintNAndintNTovoid: () => (T.StringAndintNAndintNTovoid = dart.constFn(dart_rti.findType("~(core|String[core|int?,core|int?])")))(),
    StreamOfRtcDtmfToneChangeEvent: () => (T.StreamOfRtcDtmfToneChangeEvent = dart.constFn(dart_rti.findType("async|Stream<html|RtcDtmfToneChangeEvent>")))(),
    EventStreamProviderOfRtcDtmfToneChangeEvent: () => (T.EventStreamProviderOfRtcDtmfToneChangeEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|RtcDtmfToneChangeEvent>")))(),
    RtcDtmfToneChangeEventL: () => (T.RtcDtmfToneChangeEventL = dart.constFn(dart_rti.findType("html|RtcDtmfToneChangeEvent*")))(),
    EventStreamProviderOfRtcDtmfToneChangeEventL: () => (T.EventStreamProviderOfRtcDtmfToneChangeEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|RtcDtmfToneChangeEvent*>")))(),
    VoidToRtcDtmfToneChangeEvent: () => (T.VoidToRtcDtmfToneChangeEvent = dart.constFn(dart_rti.findType("html|RtcDtmfToneChangeEvent()")))(),
    StringAndMapToRtcDtmfToneChangeEvent: () => (T.StringAndMapToRtcDtmfToneChangeEvent = dart.constFn(dart_rti.findType("html|RtcDtmfToneChangeEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToRtcDtmfToneChangeEvent: () => (T.dynamicAnddynamicToRtcDtmfToneChangeEvent = dart.constFn(dart_rti.findType("html|RtcDtmfToneChangeEvent(@,@)")))(),
    MapToRtcIceCandidate: () => (T.MapToRtcIceCandidate = dart.constFn(dart_rti.findType("html|RtcIceCandidate(core|Map<@,@>)")))(),
    VoidToRtcIceCandidate: () => (T.VoidToRtcIceCandidate = dart.constFn(dart_rti.findType("html|RtcIceCandidate()")))(),
    VoidToRtcLegacyStatsReport: () => (T.VoidToRtcLegacyStatsReport = dart.constFn(dart_rti.findType("html|RtcLegacyStatsReport()")))(),
    RtcStatsResponse: () => (T.RtcStatsResponse = dart.constFn(dart_rti.findType("html|RtcStatsResponse")))(),
    RtcStatsResponseTovoid: () => (T.RtcStatsResponseTovoid = dart.constFn(dart_rti.findType("~(html|RtcStatsResponse)")))(),
    RtcSessionDescription: () => (T.RtcSessionDescription = dart.constFn(dart_rti.findType("html|RtcSessionDescription")))(),
    RtcStatsReport: () => (T.RtcStatsReport = dart.constFn(dart_rti.findType("html|RtcStatsReport")))(),
    MapAndMapNToRtcPeerConnection: () => (T.MapAndMapNToRtcPeerConnection = dart.constFn(dart_rti.findType("html|RtcPeerConnection(core|Map<@,@>[core|Map<@,@>?])")))(),
    MediaStreamTrackNToFutureOfRtcStatsResponse: () => (T.MediaStreamTrackNToFutureOfRtcStatsResponse = dart.constFn(dart_rti.findType("async|Future<html|RtcStatsResponse>([html|MediaStreamTrack?])")))(),
    FnAndMediaStreamTrackNToFuture: () => (T.FnAndMediaStreamTrackNToFuture = dart.constFn(dart_rti.findType("async|Future<@>([~(html|RtcStatsResponse)?,html|MediaStreamTrack?])")))(),
    VoidToRtcPeerConnection: () => (T.VoidToRtcPeerConnection = dart.constFn(dart_rti.findType("html|RtcPeerConnection()")))(),
    RtcSessionDescriptionN: () => (T.RtcSessionDescriptionN = dart.constFn(dart_rti.findType("html|RtcSessionDescription?")))(),
    ObjectAndFnAndFnToFuture: () => (T.ObjectAndFnAndFnToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|Object[~()?,~(html|DomException)?])")))(),
    MediaStreamNAndMapNTovoid: () => (T.MediaStreamNAndMapNTovoid = dart.constFn(dart_rti.findType("~(html|MediaStream?[core|Map<@,@>?])")))(),
    MediaStreamNAnddynamicTovoid: () => (T.MediaStreamNAnddynamicTovoid = dart.constFn(dart_rti.findType("~(html|MediaStream?,@)")))(),
    MediaStreamNTovoid: () => (T.MediaStreamNTovoid = dart.constFn(dart_rti.findType("~(html|MediaStream?)")))(),
    MediaStreamTrackAndMediaStreamToRtcRtpSender: () => (T.MediaStreamTrackAndMediaStreamToRtcRtpSender = dart.constFn(dart_rti.findType("html|RtcRtpSender(html|MediaStreamTrack,html|MediaStream)")))(),
    MapNToFutureOfRtcSessionDescription: () => (T.MapNToFutureOfRtcSessionDescription = dart.constFn(dart_rti.findType("async|Future<html|RtcSessionDescription>([core|Map<@,@>?])")))(),
    MediaStreamTrackToRtcDtmfSender: () => (T.MediaStreamTrackToRtcDtmfSender = dart.constFn(dart_rti.findType("html|RtcDtmfSender(html|MediaStreamTrack)")))(),
    StringAndMapNToRtcDataChannel: () => (T.StringAndMapNToRtcDataChannel = dart.constFn(dart_rti.findType("html|RtcDataChannel(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToRtcDataChannel: () => (T.dynamicAnddynamicToRtcDataChannel = dart.constFn(dart_rti.findType("html|RtcDataChannel(@,@)")))(),
    dynamicToRtcDataChannel: () => (T.dynamicToRtcDataChannel = dart.constFn(dart_rti.findType("html|RtcDataChannel(@)")))(),
    VoidToListOfMediaStream: () => (T.VoidToListOfMediaStream = dart.constFn(dart_rti.findType("core|List<html|MediaStream>()")))(),
    VoidToListOfRtcRtpReceiver: () => (T.VoidToListOfRtcRtpReceiver = dart.constFn(dart_rti.findType("core|List<html|RtcRtpReceiver>()")))(),
    VoidToListOfRtcRtpSender: () => (T.VoidToListOfRtcRtpSender = dart.constFn(dart_rti.findType("core|List<html|RtcRtpSender>()")))(),
    VoidToFutureOfRtcStatsReport: () => (T.VoidToFutureOfRtcStatsReport = dart.constFn(dart_rti.findType("async|Future<html|RtcStatsReport>()")))(),
    RtcRtpSenderTovoid: () => (T.RtcRtpSenderTovoid = dart.constFn(dart_rti.findType("~(html|RtcRtpSender)")))(),
    StreamOfMediaStreamEvent: () => (T.StreamOfMediaStreamEvent = dart.constFn(dart_rti.findType("async|Stream<html|MediaStreamEvent>")))(),
    StreamOfRtcDataChannelEvent: () => (T.StreamOfRtcDataChannelEvent = dart.constFn(dart_rti.findType("async|Stream<html|RtcDataChannelEvent>")))(),
    StreamOfRtcPeerConnectionIceEvent: () => (T.StreamOfRtcPeerConnectionIceEvent = dart.constFn(dart_rti.findType("async|Stream<html|RtcPeerConnectionIceEvent>")))(),
    StreamOfRtcTrackEvent: () => (T.StreamOfRtcTrackEvent = dart.constFn(dart_rti.findType("async|Stream<html|RtcTrackEvent>")))(),
    EventStreamProviderOfMediaStreamEvent: () => (T.EventStreamProviderOfMediaStreamEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|MediaStreamEvent>")))(),
    EventStreamProviderOfRtcDataChannelEvent: () => (T.EventStreamProviderOfRtcDataChannelEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|RtcDataChannelEvent>")))(),
    EventStreamProviderOfRtcPeerConnectionIceEvent: () => (T.EventStreamProviderOfRtcPeerConnectionIceEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|RtcPeerConnectionIceEvent>")))(),
    EventStreamProviderOfRtcTrackEvent: () => (T.EventStreamProviderOfRtcTrackEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|RtcTrackEvent>")))(),
    MediaStreamEventL: () => (T.MediaStreamEventL = dart.constFn(dart_rti.findType("html|MediaStreamEvent*")))(),
    EventStreamProviderOfMediaStreamEventL: () => (T.EventStreamProviderOfMediaStreamEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|MediaStreamEvent*>")))(),
    RtcDataChannelEventL: () => (T.RtcDataChannelEventL = dart.constFn(dart_rti.findType("html|RtcDataChannelEvent*")))(),
    EventStreamProviderOfRtcDataChannelEventL: () => (T.EventStreamProviderOfRtcDataChannelEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|RtcDataChannelEvent*>")))(),
    RtcPeerConnectionIceEventL: () => (T.RtcPeerConnectionIceEventL = dart.constFn(dart_rti.findType("html|RtcPeerConnectionIceEvent*")))(),
    EventStreamProviderOfRtcPeerConnectionIceEventL: () => (T.EventStreamProviderOfRtcPeerConnectionIceEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|RtcPeerConnectionIceEvent*>")))(),
    RtcTrackEventL: () => (T.RtcTrackEventL = dart.constFn(dart_rti.findType("html|RtcTrackEvent*")))(),
    EventStreamProviderOfRtcTrackEventL: () => (T.EventStreamProviderOfRtcTrackEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|RtcTrackEvent*>")))(),
    VoidToRtcPeerConnectionIceEvent: () => (T.VoidToRtcPeerConnectionIceEvent = dart.constFn(dart_rti.findType("html|RtcPeerConnectionIceEvent()")))(),
    StringAndMapNToRtcPeerConnectionIceEvent: () => (T.StringAndMapNToRtcPeerConnectionIceEvent = dart.constFn(dart_rti.findType("html|RtcPeerConnectionIceEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToRtcPeerConnectionIceEvent: () => (T.dynamicAnddynamicToRtcPeerConnectionIceEvent = dart.constFn(dart_rti.findType("html|RtcPeerConnectionIceEvent(@,@)")))(),
    dynamicToRtcPeerConnectionIceEvent: () => (T.dynamicToRtcPeerConnectionIceEvent = dart.constFn(dart_rti.findType("html|RtcPeerConnectionIceEvent(@)")))(),
    RtcIceCandidateN: () => (T.RtcIceCandidateN = dart.constFn(dart_rti.findType("html|RtcIceCandidate?")))(),
    VoidToRtcRtpContributingSource: () => (T.VoidToRtcRtpContributingSource = dart.constFn(dart_rti.findType("html|RtcRtpContributingSource()")))(),
    VoidToRtcRtpReceiver: () => (T.VoidToRtcRtpReceiver = dart.constFn(dart_rti.findType("html|RtcRtpReceiver()")))(),
    VoidToListOfRtcRtpContributingSource: () => (T.VoidToListOfRtcRtpContributingSource = dart.constFn(dart_rti.findType("core|List<html|RtcRtpContributingSource>()")))(),
    VoidToRtcRtpSender: () => (T.VoidToRtcRtpSender = dart.constFn(dart_rti.findType("html|RtcRtpSender()")))(),
    MapToRtcSessionDescription: () => (T.MapToRtcSessionDescription = dart.constFn(dart_rti.findType("html|RtcSessionDescription(core|Map<@,@>)")))(),
    VoidToRtcSessionDescription: () => (T.VoidToRtcSessionDescription = dart.constFn(dart_rti.findType("html|RtcSessionDescription()")))(),
    VoidToRtcStatsReport: () => (T.VoidToRtcStatsReport = dart.constFn(dart_rti.findType("html|RtcStatsReport()")))(),
    VoidToRtcStatsResponse: () => (T.VoidToRtcStatsResponse = dart.constFn(dart_rti.findType("html|RtcStatsResponse()")))(),
    StringNToRtcLegacyStatsReport: () => (T.StringNToRtcLegacyStatsReport = dart.constFn(dart_rti.findType("html|RtcLegacyStatsReport(core|String?)")))(),
    VoidToListOfRtcLegacyStatsReport: () => (T.VoidToListOfRtcLegacyStatsReport = dart.constFn(dart_rti.findType("core|List<html|RtcLegacyStatsReport>()")))(),
    VoidToRtcTrackEvent: () => (T.VoidToRtcTrackEvent = dart.constFn(dart_rti.findType("html|RtcTrackEvent()")))(),
    StringAndMapToRtcTrackEvent: () => (T.StringAndMapToRtcTrackEvent = dart.constFn(dart_rti.findType("html|RtcTrackEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToRtcTrackEvent: () => (T.dynamicAnddynamicToRtcTrackEvent = dart.constFn(dart_rti.findType("html|RtcTrackEvent(@,@)")))(),
    RtcRtpReceiverN: () => (T.RtcRtpReceiverN = dart.constFn(dart_rti.findType("html|RtcRtpReceiver?")))(),
    ListNOfMediaStream: () => (T.ListNOfMediaStream = dart.constFn(dart_rti.findType("core|List<html|MediaStream>?")))(),
    VoidToScreen: () => (T.VoidToScreen = dart.constFn(dart_rti.findType("html|Screen()")))(),
    ScreenOrientationN: () => (T.ScreenOrientationN = dart.constFn(dart_rti.findType("html|ScreenOrientation?")))(),
    VoidToScreenOrientation: () => (T.VoidToScreenOrientation = dart.constFn(dart_rti.findType("html|ScreenOrientation()")))(),
    VoidToScriptElement: () => (T.VoidToScriptElement = dart.constFn(dart_rti.findType("html|ScriptElement()")))(),
    VoidToScrollState: () => (T.VoidToScrollState = dart.constFn(dart_rti.findType("html|ScrollState()")))(),
    MapNToScrollState: () => (T.MapNToScrollState = dart.constFn(dart_rti.findType("html|ScrollState([core|Map<@,@>?])")))(),
    dynamicToScrollState: () => (T.dynamicToScrollState = dart.constFn(dart_rti.findType("html|ScrollState(@)")))(),
    VoidToScrollTimeline: () => (T.VoidToScrollTimeline = dart.constFn(dart_rti.findType("html|ScrollTimeline()")))(),
    MapNToScrollTimeline: () => (T.MapNToScrollTimeline = dart.constFn(dart_rti.findType("html|ScrollTimeline([core|Map<@,@>?])")))(),
    dynamicToScrollTimeline: () => (T.dynamicToScrollTimeline = dart.constFn(dart_rti.findType("html|ScrollTimeline(@)")))(),
    VoidToSecurityPolicyViolationEvent: () => (T.VoidToSecurityPolicyViolationEvent = dart.constFn(dart_rti.findType("html|SecurityPolicyViolationEvent()")))(),
    StringAndMapNToSecurityPolicyViolationEvent: () => (T.StringAndMapNToSecurityPolicyViolationEvent = dart.constFn(dart_rti.findType("html|SecurityPolicyViolationEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToSecurityPolicyViolationEvent: () => (T.dynamicAnddynamicToSecurityPolicyViolationEvent = dart.constFn(dart_rti.findType("html|SecurityPolicyViolationEvent(@,@)")))(),
    dynamicToSecurityPolicyViolationEvent: () => (T.dynamicToSecurityPolicyViolationEvent = dart.constFn(dart_rti.findType("html|SecurityPolicyViolationEvent(@)")))(),
    OptionElement: () => (T.OptionElement = dart.constFn(dart_rti.findType("html|OptionElement")))(),
    IterableOfOptionElement: () => (T.IterableOfOptionElement = dart.constFn(dart_rti.findType("core|Iterable<html|OptionElement>")))(),
    OptionElementTobool: () => (T.OptionElementTobool = dart.constFn(dart_rti.findType("core|bool(html|OptionElement)")))(),
    VoidToSelectElement: () => (T.VoidToSelectElement = dart.constFn(dart_rti.findType("html|SelectElement()")))(),
    intAndOptionElementNTovoid: () => (T.intAndOptionElementNTovoid = dart.constFn(dart_rti.findType("~(core|int,html|OptionElement?)")))(),
    StringToOptionElementN: () => (T.StringToOptionElementN = dart.constFn(dart_rti.findType("html|OptionElement?(core|String)")))(),
    ListOfOptionElement: () => (T.ListOfOptionElement = dart.constFn(dart_rti.findType("core|List<html|OptionElement>")))(),
    VoidToSelection: () => (T.VoidToSelection = dart.constFn(dart_rti.findType("html|Selection()")))(),
    RangeTovoid: () => (T.RangeTovoid = dart.constFn(dart_rti.findType("~(html|Range)")))(),
    NodeNAndintNTovoid: () => (T.NodeNAndintNTovoid = dart.constFn(dart_rti.findType("~(html|Node?[core|int?])")))(),
    NodeAndboolNTobool: () => (T.NodeAndboolNTobool = dart.constFn(dart_rti.findType("core|bool(html|Node[core|bool?])")))(),
    NodeAndintNTovoid: () => (T.NodeAndintNTovoid = dart.constFn(dart_rti.findType("~(html|Node[core|int?])")))(),
    intToRange: () => (T.intToRange = dart.constFn(dart_rti.findType("html|Range(core|int)")))(),
    StringNAndStringNAndStringNTovoid: () => (T.StringNAndStringNAndStringNTovoid = dart.constFn(dart_rti.findType("~(core|String?,core|String?,core|String?)")))(),
    NodeNAndintAndNodeN__Tovoid: () => (T.NodeNAndintAndNodeN__Tovoid = dart.constFn(dart_rti.findType("~(html|Node?,core|int,html|Node?,core|int)")))(),
    VoidToSensorErrorEvent: () => (T.VoidToSensorErrorEvent = dart.constFn(dart_rti.findType("html|SensorErrorEvent()")))(),
    StringAndMapToSensorErrorEvent: () => (T.StringAndMapToSensorErrorEvent = dart.constFn(dart_rti.findType("html|SensorErrorEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToSensorErrorEvent: () => (T.dynamicAnddynamicToSensorErrorEvent = dart.constFn(dart_rti.findType("html|SensorErrorEvent(@,@)")))(),
    VoidToServiceWorker: () => (T.VoidToServiceWorker = dart.constFn(dart_rti.findType("html|ServiceWorker()")))(),
    dynamicAndListNOfObjectTovoid$1: () => (T.dynamicAndListNOfObjectTovoid$1 = dart.constFn(dart_rti.findType("~(@,core|List<core|Object>?)")))(),
    ServiceWorkerRegistration: () => (T.ServiceWorkerRegistration = dart.constFn(dart_rti.findType("html|ServiceWorkerRegistration")))(),
    VoidToServiceWorkerContainer: () => (T.VoidToServiceWorkerContainer = dart.constFn(dart_rti.findType("html|ServiceWorkerContainer()")))(),
    ServiceWorkerN: () => (T.ServiceWorkerN = dart.constFn(dart_rti.findType("html|ServiceWorker?")))(),
    FutureOfServiceWorkerRegistration: () => (T.FutureOfServiceWorkerRegistration = dart.constFn(dart_rti.findType("async|Future<html|ServiceWorkerRegistration>")))(),
    StringNToFutureOfServiceWorkerRegistration: () => (T.StringNToFutureOfServiceWorkerRegistration = dart.constFn(dart_rti.findType("async|Future<html|ServiceWorkerRegistration>([core|String?])")))(),
    StringAndMapNToFutureOfServiceWorkerRegistration: () => (T.StringAndMapNToFutureOfServiceWorkerRegistration = dart.constFn(dart_rti.findType("async|Future<html|ServiceWorkerRegistration>(core|String[core|Map<@,@>?])")))(),
    ServiceWorkerGlobalScope: () => (T.ServiceWorkerGlobalScope = dart.constFn(dart_rti.findType("html|ServiceWorkerGlobalScope")))(),
    VoidToServiceWorkerGlobalScope: () => (T.VoidToServiceWorkerGlobalScope = dart.constFn(dart_rti.findType("html|ServiceWorkerGlobalScope()")))(),
    ClientsN: () => (T.ClientsN = dart.constFn(dart_rti.findType("html|Clients?")))(),
    ServiceWorkerRegistrationN: () => (T.ServiceWorkerRegistrationN = dart.constFn(dart_rti.findType("html|ServiceWorkerRegistration?")))(),
    StreamOfForeignFetchEvent: () => (T.StreamOfForeignFetchEvent = dart.constFn(dart_rti.findType("async|Stream<html|ForeignFetchEvent>")))(),
    EventStreamProviderOfForeignFetchEvent: () => (T.EventStreamProviderOfForeignFetchEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|ForeignFetchEvent>")))(),
    ForeignFetchEventL: () => (T.ForeignFetchEventL = dart.constFn(dart_rti.findType("html|ForeignFetchEvent*")))(),
    EventStreamProviderOfForeignFetchEventL: () => (T.EventStreamProviderOfForeignFetchEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|ForeignFetchEvent*>")))(),
    VoidToServiceWorkerRegistration: () => (T.VoidToServiceWorkerRegistration = dart.constFn(dart_rti.findType("html|ServiceWorkerRegistration()")))(),
    BackgroundFetchManagerN: () => (T.BackgroundFetchManagerN = dart.constFn(dart_rti.findType("html|BackgroundFetchManager?")))(),
    NavigationPreloadManagerN: () => (T.NavigationPreloadManagerN = dart.constFn(dart_rti.findType("html|NavigationPreloadManager?")))(),
    PaymentManagerN: () => (T.PaymentManagerN = dart.constFn(dart_rti.findType("html|PaymentManager?")))(),
    PushManagerN: () => (T.PushManagerN = dart.constFn(dart_rti.findType("html|PushManager?")))(),
    SyncManagerN: () => (T.SyncManagerN = dart.constFn(dart_rti.findType("html|SyncManager?")))(),
    StringAndMapNToFuture: () => (T.StringAndMapNToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|String[core|Map<@,@>?])")))(),
    ShadowElement: () => (T.ShadowElement = dart.constFn(dart_rti.findType("html|ShadowElement")))(),
    VoidToShadowElement: () => (T.VoidToShadowElement = dart.constFn(dart_rti.findType("html|ShadowElement()")))(),
    VoidToSharedArrayBuffer: () => (T.VoidToSharedArrayBuffer = dart.constFn(dart_rti.findType("html|SharedArrayBuffer()")))(),
    intNToSharedArrayBuffer: () => (T.intNToSharedArrayBuffer = dart.constFn(dart_rti.findType("html|SharedArrayBuffer([core|int?])")))(),
    dynamicToSharedArrayBuffer: () => (T.dynamicToSharedArrayBuffer = dart.constFn(dart_rti.findType("html|SharedArrayBuffer(@)")))(),
    intNAndintNToSharedArrayBuffer: () => (T.intNAndintNToSharedArrayBuffer = dart.constFn(dart_rti.findType("html|SharedArrayBuffer([core|int?,core|int?])")))(),
    VoidToSharedWorker: () => (T.VoidToSharedWorker = dart.constFn(dart_rti.findType("html|SharedWorker()")))(),
    StringAndStringNToSharedWorker: () => (T.StringAndStringNToSharedWorker = dart.constFn(dart_rti.findType("html|SharedWorker(core|String[core|String?])")))(),
    dynamicAnddynamicToSharedWorker: () => (T.dynamicAnddynamicToSharedWorker = dart.constFn(dart_rti.findType("html|SharedWorker(@,@)")))(),
    dynamicToSharedWorker: () => (T.dynamicToSharedWorker = dart.constFn(dart_rti.findType("html|SharedWorker(@)")))(),
    MessagePortN: () => (T.MessagePortN = dart.constFn(dart_rti.findType("html|MessagePort?")))(),
    SharedWorkerGlobalScope: () => (T.SharedWorkerGlobalScope = dart.constFn(dart_rti.findType("html|SharedWorkerGlobalScope")))(),
    VoidToSharedWorkerGlobalScope: () => (T.VoidToSharedWorkerGlobalScope = dart.constFn(dart_rti.findType("html|SharedWorkerGlobalScope()")))(),
    VoidToSlotElement: () => (T.VoidToSlotElement = dart.constFn(dart_rti.findType("html|SlotElement()")))(),
    MapNToListOfNode: () => (T.MapNToListOfNode = dart.constFn(dart_rti.findType("core|List<html|Node>([core|Map<@,@>?])")))(),
    dynamicToListOfNode: () => (T.dynamicToListOfNode = dart.constFn(dart_rti.findType("core|List<html|Node>(@)")))(),
    VoidToSourceBuffer: () => (T.VoidToSourceBuffer = dart.constFn(dart_rti.findType("html|SourceBuffer()")))(),
    TimeRangesN: () => (T.TimeRangesN = dart.constFn(dart_rti.findType("html|TimeRanges?")))(),
    TrackDefaultListN: () => (T.TrackDefaultListN = dart.constFn(dart_rti.findType("html|TrackDefaultList?")))(),
    SourceBuffer: () => (T.SourceBuffer = dart.constFn(dart_rti.findType("html|SourceBuffer")))(),
    VoidToSourceBufferList: () => (T.VoidToSourceBufferList = dart.constFn(dart_rti.findType("html|SourceBufferList()")))(),
    intToSourceBuffer: () => (T.intToSourceBuffer = dart.constFn(dart_rti.findType("html|SourceBuffer(core|int)")))(),
    VoidToSourceElement: () => (T.VoidToSourceElement = dart.constFn(dart_rti.findType("html|SourceElement()")))(),
    VoidToSpanElement: () => (T.VoidToSpanElement = dart.constFn(dart_rti.findType("html|SpanElement()")))(),
    VoidToSpeechGrammar: () => (T.VoidToSpeechGrammar = dart.constFn(dart_rti.findType("html|SpeechGrammar()")))(),
    SpeechGrammar: () => (T.SpeechGrammar = dart.constFn(dart_rti.findType("html|SpeechGrammar")))(),
    VoidToSpeechGrammarList: () => (T.VoidToSpeechGrammarList = dart.constFn(dart_rti.findType("html|SpeechGrammarList()")))(),
    intToSpeechGrammar: () => (T.intToSpeechGrammar = dart.constFn(dart_rti.findType("html|SpeechGrammar(core|int)")))(),
    StringAndnumNTovoid: () => (T.StringAndnumNTovoid = dart.constFn(dart_rti.findType("~(core|String[core|num?])")))(),
    VoidToSpeechRecognition: () => (T.VoidToSpeechRecognition = dart.constFn(dart_rti.findType("html|SpeechRecognition()")))(),
    SpeechGrammarListN: () => (T.SpeechGrammarListN = dart.constFn(dart_rti.findType("html|SpeechGrammarList?")))(),
    StreamOfSpeechRecognitionError: () => (T.StreamOfSpeechRecognitionError = dart.constFn(dart_rti.findType("async|Stream<html|SpeechRecognitionError>")))(),
    StreamOfSpeechRecognitionEvent: () => (T.StreamOfSpeechRecognitionEvent = dart.constFn(dart_rti.findType("async|Stream<html|SpeechRecognitionEvent>")))(),
    EventStreamProviderOfSpeechRecognitionError: () => (T.EventStreamProviderOfSpeechRecognitionError = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|SpeechRecognitionError>")))(),
    EventStreamProviderOfSpeechRecognitionEvent: () => (T.EventStreamProviderOfSpeechRecognitionEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|SpeechRecognitionEvent>")))(),
    SpeechRecognitionErrorL: () => (T.SpeechRecognitionErrorL = dart.constFn(dart_rti.findType("html|SpeechRecognitionError*")))(),
    EventStreamProviderOfSpeechRecognitionErrorL: () => (T.EventStreamProviderOfSpeechRecognitionErrorL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|SpeechRecognitionError*>")))(),
    SpeechRecognitionEventL: () => (T.SpeechRecognitionEventL = dart.constFn(dart_rti.findType("html|SpeechRecognitionEvent*")))(),
    EventStreamProviderOfSpeechRecognitionEventL: () => (T.EventStreamProviderOfSpeechRecognitionEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|SpeechRecognitionEvent*>")))(),
    VoidToSpeechRecognitionAlternative: () => (T.VoidToSpeechRecognitionAlternative = dart.constFn(dart_rti.findType("html|SpeechRecognitionAlternative()")))(),
    VoidToSpeechRecognitionError: () => (T.VoidToSpeechRecognitionError = dart.constFn(dart_rti.findType("html|SpeechRecognitionError()")))(),
    StringAndMapNToSpeechRecognitionError: () => (T.StringAndMapNToSpeechRecognitionError = dart.constFn(dart_rti.findType("html|SpeechRecognitionError(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToSpeechRecognitionError: () => (T.dynamicAnddynamicToSpeechRecognitionError = dart.constFn(dart_rti.findType("html|SpeechRecognitionError(@,@)")))(),
    dynamicToSpeechRecognitionError: () => (T.dynamicToSpeechRecognitionError = dart.constFn(dart_rti.findType("html|SpeechRecognitionError(@)")))(),
    VoidToSpeechRecognitionEvent: () => (T.VoidToSpeechRecognitionEvent = dart.constFn(dart_rti.findType("html|SpeechRecognitionEvent()")))(),
    StringAndMapNToSpeechRecognitionEvent: () => (T.StringAndMapNToSpeechRecognitionEvent = dart.constFn(dart_rti.findType("html|SpeechRecognitionEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToSpeechRecognitionEvent: () => (T.dynamicAnddynamicToSpeechRecognitionEvent = dart.constFn(dart_rti.findType("html|SpeechRecognitionEvent(@,@)")))(),
    dynamicToSpeechRecognitionEvent: () => (T.dynamicToSpeechRecognitionEvent = dart.constFn(dart_rti.findType("html|SpeechRecognitionEvent(@)")))(),
    ListNOfSpeechRecognitionResult: () => (T.ListNOfSpeechRecognitionResult = dart.constFn(dart_rti.findType("core|List<html|SpeechRecognitionResult>?")))(),
    VoidToSpeechRecognitionResult: () => (T.VoidToSpeechRecognitionResult = dart.constFn(dart_rti.findType("html|SpeechRecognitionResult()")))(),
    intToSpeechRecognitionAlternative: () => (T.intToSpeechRecognitionAlternative = dart.constFn(dart_rti.findType("html|SpeechRecognitionAlternative(core|int)")))(),
    VoidToListOfSpeechSynthesisVoice: () => (T.VoidToListOfSpeechSynthesisVoice = dart.constFn(dart_rti.findType("core|List<html|SpeechSynthesisVoice>()")))(),
    VoidToSpeechSynthesis: () => (T.VoidToSpeechSynthesis = dart.constFn(dart_rti.findType("html|SpeechSynthesis()")))(),
    SpeechSynthesisUtteranceTovoid: () => (T.SpeechSynthesisUtteranceTovoid = dart.constFn(dart_rti.findType("~(html|SpeechSynthesisUtterance)")))(),
    VoidToSpeechSynthesisEvent: () => (T.VoidToSpeechSynthesisEvent = dart.constFn(dart_rti.findType("html|SpeechSynthesisEvent()")))(),
    SpeechSynthesisUtteranceN: () => (T.SpeechSynthesisUtteranceN = dart.constFn(dart_rti.findType("html|SpeechSynthesisUtterance?")))(),
    VoidToSpeechSynthesisUtterance: () => (T.VoidToSpeechSynthesisUtterance = dart.constFn(dart_rti.findType("html|SpeechSynthesisUtterance()")))(),
    StringNToSpeechSynthesisUtterance: () => (T.StringNToSpeechSynthesisUtterance = dart.constFn(dart_rti.findType("html|SpeechSynthesisUtterance([core|String?])")))(),
    dynamicToSpeechSynthesisUtterance: () => (T.dynamicToSpeechSynthesisUtterance = dart.constFn(dart_rti.findType("html|SpeechSynthesisUtterance(@)")))(),
    SpeechSynthesisVoiceN: () => (T.SpeechSynthesisVoiceN = dart.constFn(dart_rti.findType("html|SpeechSynthesisVoice?")))()
  };
  var T$6 = {
    StreamOfSpeechSynthesisEvent: () => (T$6.StreamOfSpeechSynthesisEvent = dart.constFn(dart_rti.findType("async|Stream<html|SpeechSynthesisEvent>")))(),
    EventStreamProviderOfSpeechSynthesisEvent: () => (T$6.EventStreamProviderOfSpeechSynthesisEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|SpeechSynthesisEvent>")))(),
    SpeechSynthesisEventL: () => (T$6.SpeechSynthesisEventL = dart.constFn(dart_rti.findType("html|SpeechSynthesisEvent*")))(),
    EventStreamProviderOfSpeechSynthesisEventL: () => (T$6.EventStreamProviderOfSpeechSynthesisEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|SpeechSynthesisEvent*>")))(),
    VoidToSpeechSynthesisVoice: () => (T$6.VoidToSpeechSynthesisVoice = dart.constFn(dart_rti.findType("html|SpeechSynthesisVoice()")))(),
    VoidToStaticRange: () => (T$6.VoidToStaticRange = dart.constFn(dart_rti.findType("html|StaticRange()")))(),
    ObjectNToStringN: () => (T$6.ObjectNToStringN = dart.constFn(dart_rti.findType("core|String?(core|Object?)")))(),
    VoidToStorage: () => (T$6.VoidToStorage = dart.constFn(dart_rti.findType("html|Storage()")))(),
    StorageEvent: () => (T$6.StorageEvent = dart.constFn(dart_rti.findType("html|StorageEvent")))(),
    String__ToStorageEvent: () => (T$6.String__ToStorageEvent = dart.constFn(dart_rti.findType("html|StorageEvent(core|String{canBubble:core|bool,cancelable:core|bool,key:core|String?,newValue:core|String?,oldValue:core|String?,storageArea:html|Storage?,url:core|String?})")))(),
    StringAndMapNToStorageEvent: () => (T$6.StringAndMapNToStorageEvent = dart.constFn(dart_rti.findType("html|StorageEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToStorageEvent: () => (T$6.dynamicAnddynamicToStorageEvent = dart.constFn(dart_rti.findType("html|StorageEvent(@,@)")))(),
    dynamicToStorageEvent: () => (T$6.dynamicToStorageEvent = dart.constFn(dart_rti.findType("html|StorageEvent(@)")))(),
    StorageN: () => (T$6.StorageN = dart.constFn(dart_rti.findType("html|Storage?")))(),
    StringNAndboolNAndboolN__Tovoid$4: () => (T$6.StringNAndboolNAndboolN__Tovoid$4 = dart.constFn(dart_rti.findType("~(core|String?,core|bool?,core|bool?,core|String?,core|String?,core|String?,core|String?,html|Storage?)")))(),
    VoidToStorageManager: () => (T$6.VoidToStorageManager = dart.constFn(dart_rti.findType("html|StorageManager()")))(),
    VoidToStyleElement: () => (T$6.VoidToStyleElement = dart.constFn(dart_rti.findType("html|StyleElement()")))(),
    VoidToStyleMedia: () => (T$6.VoidToStyleMedia = dart.constFn(dart_rti.findType("html|StyleMedia()")))(),
    StringNTobool: () => (T$6.StringNTobool = dart.constFn(dart_rti.findType("core|bool(core|String?)")))(),
    VoidToStylePropertyMapReadonly: () => (T$6.VoidToStylePropertyMapReadonly = dart.constFn(dart_rti.findType("html|StylePropertyMapReadonly()")))(),
    StringToCssStyleValueN: () => (T$6.StringToCssStyleValueN = dart.constFn(dart_rti.findType("html|CssStyleValue?(core|String)")))(),
    StringToListOfCssStyleValue: () => (T$6.StringToListOfCssStyleValue = dart.constFn(dart_rti.findType("core|List<html|CssStyleValue>(core|String)")))(),
    VoidToStylePropertyMap: () => (T$6.VoidToStylePropertyMap = dart.constFn(dart_rti.findType("html|StylePropertyMap()")))(),
    VoidToSyncEvent: () => (T$6.VoidToSyncEvent = dart.constFn(dart_rti.findType("html|SyncEvent()")))(),
    StringAndMapToSyncEvent: () => (T$6.StringAndMapToSyncEvent = dart.constFn(dart_rti.findType("html|SyncEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToSyncEvent: () => (T$6.dynamicAnddynamicToSyncEvent = dart.constFn(dart_rti.findType("html|SyncEvent(@,@)")))(),
    VoidToSyncManager: () => (T$6.VoidToSyncManager = dart.constFn(dart_rti.findType("html|SyncManager()")))(),
    VoidToTableCaptionElement: () => (T$6.VoidToTableCaptionElement = dart.constFn(dart_rti.findType("html|TableCaptionElement()")))(),
    VoidToTableCellElement: () => (T$6.VoidToTableCellElement = dart.constFn(dart_rti.findType("html|TableCellElement()")))(),
    VoidToTableColElement: () => (T$6.VoidToTableColElement = dart.constFn(dart_rti.findType("html|TableColElement()")))(),
    TableSectionElement: () => (T$6.TableSectionElement = dart.constFn(dart_rti.findType("html|TableSectionElement")))(),
    TableRowElement: () => (T$6.TableRowElement = dart.constFn(dart_rti.findType("html|TableRowElement")))(),
    ListOfTableSectionElement: () => (T$6.ListOfTableSectionElement = dart.constFn(dart_rti.findType("core|List<html|TableSectionElement>")))(),
    ListOfTableRowElement: () => (T$6.ListOfTableRowElement = dart.constFn(dart_rti.findType("core|List<html|TableRowElement>")))(),
    VoidToTableRowElement: () => (T$6.VoidToTableRowElement = dart.constFn(dart_rti.findType("html|TableRowElement()")))(),
    VoidToTableSectionElement: () => (T$6.VoidToTableSectionElement = dart.constFn(dart_rti.findType("html|TableSectionElement()")))(),
    intToTableRowElement: () => (T$6.intToTableRowElement = dart.constFn(dart_rti.findType("html|TableRowElement(core|int)")))(),
    VoidToTableElement: () => (T$6.VoidToTableElement = dart.constFn(dart_rti.findType("html|TableElement()")))(),
    TableCaptionElementN: () => (T$6.TableCaptionElementN = dart.constFn(dart_rti.findType("html|TableCaptionElement?")))(),
    TableSectionElementN: () => (T$6.TableSectionElementN = dart.constFn(dart_rti.findType("html|TableSectionElement?")))(),
    intNToTableRowElement: () => (T$6.intNToTableRowElement = dart.constFn(dart_rti.findType("html|TableRowElement([core|int?])")))(),
    TableCellElement: () => (T$6.TableCellElement = dart.constFn(dart_rti.findType("html|TableCellElement")))(),
    ListOfTableCellElement: () => (T$6.ListOfTableCellElement = dart.constFn(dart_rti.findType("core|List<html|TableCellElement>")))(),
    intToTableCellElement: () => (T$6.intToTableCellElement = dart.constFn(dart_rti.findType("html|TableCellElement(core|int)")))(),
    intNToHtmlElement: () => (T$6.intNToHtmlElement = dart.constFn(dart_rti.findType("html|HtmlElement([core|int?])")))(),
    VoidToTaskAttributionTiming: () => (T$6.VoidToTaskAttributionTiming = dart.constFn(dart_rti.findType("html|TaskAttributionTiming()")))(),
    TemplateElement: () => (T$6.TemplateElement = dart.constFn(dart_rti.findType("html|TemplateElement")))(),
    VoidToTemplateElement: () => (T$6.VoidToTemplateElement = dart.constFn(dart_rti.findType("html|TemplateElement()")))(),
    DocumentFragmentN: () => (T$6.DocumentFragmentN = dart.constFn(dart_rti.findType("html|DocumentFragment?")))(),
    VoidToTextAreaElement: () => (T$6.VoidToTextAreaElement = dart.constFn(dart_rti.findType("html|TextAreaElement()")))(),
    VoidToTextDetector: () => (T$6.VoidToTextDetector = dart.constFn(dart_rti.findType("html|TextDetector()")))(),
    TextEvent: () => (T$6.TextEvent = dart.constFn(dart_rti.findType("html|TextEvent")))(),
    String__ToTextEvent: () => (T$6.String__ToTextEvent = dart.constFn(dart_rti.findType("html|TextEvent(core|String{canBubble:core|bool,cancelable:core|bool,data:core|String?,view:html|Window?})")))(),
    VoidToTextEvent: () => (T$6.VoidToTextEvent = dart.constFn(dart_rti.findType("html|TextEvent()")))(),
    VoidToTextMetrics: () => (T$6.VoidToTextMetrics = dart.constFn(dart_rti.findType("html|TextMetrics()")))(),
    VoidToTextTrack: () => (T$6.VoidToTextTrack = dart.constFn(dart_rti.findType("html|TextTrack()")))(),
    TextTrackCueListN: () => (T$6.TextTrackCueListN = dart.constFn(dart_rti.findType("html|TextTrackCueList?")))(),
    TextTrackCueTovoid: () => (T$6.TextTrackCueTovoid = dart.constFn(dart_rti.findType("~(html|TextTrackCue)")))(),
    VoidToTextTrackCue: () => (T$6.VoidToTextTrackCue = dart.constFn(dart_rti.findType("html|TextTrackCue()")))(),
    TextTrackN: () => (T$6.TextTrackN = dart.constFn(dart_rti.findType("html|TextTrack?")))(),
    TextTrackCue: () => (T$6.TextTrackCue = dart.constFn(dart_rti.findType("html|TextTrackCue")))(),
    VoidToTextTrackCueList: () => (T$6.VoidToTextTrackCueList = dart.constFn(dart_rti.findType("html|TextTrackCueList()")))(),
    intToTextTrackCue: () => (T$6.intToTextTrackCue = dart.constFn(dart_rti.findType("html|TextTrackCue(core|int)")))(),
    StringToTextTrackCueN: () => (T$6.StringToTextTrackCueN = dart.constFn(dart_rti.findType("html|TextTrackCue?(core|String)")))(),
    TextTrack: () => (T$6.TextTrack = dart.constFn(dart_rti.findType("html|TextTrack")))(),
    VoidToTextTrackList: () => (T$6.VoidToTextTrackList = dart.constFn(dart_rti.findType("html|TextTrackList()")))(),
    intToTextTrack: () => (T$6.intToTextTrack = dart.constFn(dart_rti.findType("html|TextTrack(core|int)")))(),
    StringToTextTrackN: () => (T$6.StringToTextTrackN = dart.constFn(dart_rti.findType("html|TextTrack?(core|String)")))(),
    StreamOfTrackEvent: () => (T$6.StreamOfTrackEvent = dart.constFn(dart_rti.findType("async|Stream<html|TrackEvent>")))(),
    EventStreamProviderOfTrackEvent: () => (T$6.EventStreamProviderOfTrackEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|TrackEvent>")))(),
    TrackEventL: () => (T$6.TrackEventL = dart.constFn(dart_rti.findType("html|TrackEvent*")))(),
    EventStreamProviderOfTrackEventL: () => (T$6.EventStreamProviderOfTrackEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|TrackEvent*>")))(),
    VoidToTimeElement: () => (T$6.VoidToTimeElement = dart.constFn(dart_rti.findType("html|TimeElement()")))(),
    VoidToTimeRanges: () => (T$6.VoidToTimeRanges = dart.constFn(dart_rti.findType("html|TimeRanges()")))(),
    VoidToTitleElement: () => (T$6.VoidToTitleElement = dart.constFn(dart_rti.findType("html|TitleElement()")))(),
    VoidToTouch: () => (T$6.VoidToTouch = dart.constFn(dart_rti.findType("html|Touch()")))(),
    MapToTouch: () => (T$6.MapToTouch = dart.constFn(dart_rti.findType("html|Touch(core|Map<@,@>)")))(),
    dynamicToTouch: () => (T$6.dynamicToTouch = dart.constFn(dart_rti.findType("html|Touch(@)")))(),
    TouchEvent: () => (T$6.TouchEvent = dart.constFn(dart_rti.findType("html|TouchEvent")))(),
    VoidToTouchEvent: () => (T$6.VoidToTouchEvent = dart.constFn(dart_rti.findType("html|TouchEvent()")))(),
    StringAndMapNToTouchEvent: () => (T$6.StringAndMapNToTouchEvent = dart.constFn(dart_rti.findType("html|TouchEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToTouchEvent: () => (T$6.dynamicAnddynamicToTouchEvent = dart.constFn(dart_rti.findType("html|TouchEvent(@,@)")))(),
    dynamicToTouchEvent: () => (T$6.dynamicToTouchEvent = dart.constFn(dart_rti.findType("html|TouchEvent(@)")))(),
    TouchListN: () => (T$6.TouchListN = dart.constFn(dart_rti.findType("html|TouchList?")))(),
    Touch: () => (T$6.Touch = dart.constFn(dart_rti.findType("html|Touch")))(),
    VoidToTouchList: () => (T$6.VoidToTouchList = dart.constFn(dart_rti.findType("html|TouchList()")))(),
    intToTouch: () => (T$6.intToTouch = dart.constFn(dart_rti.findType("html|Touch(core|int)")))(),
    intToTouchN: () => (T$6.intToTouchN = dart.constFn(dart_rti.findType("html|Touch?(core|int)")))(),
    VoidToTrackDefault: () => (T$6.VoidToTrackDefault = dart.constFn(dart_rti.findType("html|TrackDefault()")))(),
    StringAndStringAndString__ToTrackDefault: () => (T$6.StringAndStringAndString__ToTrackDefault = dart.constFn(dart_rti.findType("html|TrackDefault(core|String,core|String,core|String,core|List<core|String>[core|String?])")))(),
    dynamicAnddynamicAnddynamic__ToTrackDefault: () => (T$6.dynamicAnddynamicAnddynamic__ToTrackDefault = dart.constFn(dart_rti.findType("html|TrackDefault(@,@,@,@,@)")))(),
    dynamicAnddynamicAnddynamic__ToTrackDefault$1: () => (T$6.dynamicAnddynamicAnddynamic__ToTrackDefault$1 = dart.constFn(dart_rti.findType("html|TrackDefault(@,@,@,@)")))(),
    VoidToTrackDefaultList: () => (T$6.VoidToTrackDefaultList = dart.constFn(dart_rti.findType("html|TrackDefaultList()")))(),
    ListNOfTrackDefaultToTrackDefaultList: () => (T$6.ListNOfTrackDefaultToTrackDefaultList = dart.constFn(dart_rti.findType("html|TrackDefaultList([core|List<html|TrackDefault>?])")))(),
    dynamicToTrackDefaultList: () => (T$6.dynamicToTrackDefaultList = dart.constFn(dart_rti.findType("html|TrackDefaultList(@)")))(),
    intToTrackDefault: () => (T$6.intToTrackDefault = dart.constFn(dart_rti.findType("html|TrackDefault(core|int)")))(),
    TrackElement: () => (T$6.TrackElement = dart.constFn(dart_rti.findType("html|TrackElement")))(),
    VoidToTrackElement: () => (T$6.VoidToTrackElement = dart.constFn(dart_rti.findType("html|TrackElement()")))(),
    VoidToTrackEvent: () => (T$6.VoidToTrackEvent = dart.constFn(dart_rti.findType("html|TrackEvent()")))(),
    StringAndMapNToTrackEvent: () => (T$6.StringAndMapNToTrackEvent = dart.constFn(dart_rti.findType("html|TrackEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToTrackEvent: () => (T$6.dynamicAnddynamicToTrackEvent = dart.constFn(dart_rti.findType("html|TrackEvent(@,@)")))(),
    dynamicToTrackEvent: () => (T$6.dynamicToTrackEvent = dart.constFn(dart_rti.findType("html|TrackEvent(@)")))(),
    VoidToTransitionEvent: () => (T$6.VoidToTransitionEvent = dart.constFn(dart_rti.findType("html|TransitionEvent()")))(),
    StringAndMapNToTransitionEvent: () => (T$6.StringAndMapNToTransitionEvent = dart.constFn(dart_rti.findType("html|TransitionEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToTransitionEvent: () => (T$6.dynamicAnddynamicToTransitionEvent = dart.constFn(dart_rti.findType("html|TransitionEvent(@,@)")))(),
    dynamicToTransitionEvent: () => (T$6.dynamicToTransitionEvent = dart.constFn(dart_rti.findType("html|TransitionEvent(@)")))(),
    NodeAndintToTreeWalker: () => (T$6.NodeAndintToTreeWalker = dart.constFn(dart_rti.findType("html|TreeWalker(html|Node,core|int)")))(),
    VoidToTreeWalker: () => (T$6.VoidToTreeWalker = dart.constFn(dart_rti.findType("html|TreeWalker()")))(),
    NodeFilterN: () => (T$6.NodeFilterN = dart.constFn(dart_rti.findType("html|NodeFilter?")))(),
    VoidToTrustedHtml: () => (T$6.VoidToTrustedHtml = dart.constFn(dart_rti.findType("html|TrustedHtml()")))(),
    StringToTrustedHtml: () => (T$6.StringToTrustedHtml = dart.constFn(dart_rti.findType("html|TrustedHtml(core|String)")))(),
    VoidToTrustedScriptUrl: () => (T$6.VoidToTrustedScriptUrl = dart.constFn(dart_rti.findType("html|TrustedScriptUrl()")))(),
    StringToTrustedScriptUrl: () => (T$6.StringToTrustedScriptUrl = dart.constFn(dart_rti.findType("html|TrustedScriptUrl(core|String)")))(),
    VoidToTrustedUrl: () => (T$6.VoidToTrustedUrl = dart.constFn(dart_rti.findType("html|TrustedUrl()")))(),
    StringToTrustedUrl: () => (T$6.StringToTrustedUrl = dart.constFn(dart_rti.findType("html|TrustedUrl(core|String)")))(),
    VoidToUListElement: () => (T$6.VoidToUListElement = dart.constFn(dart_rti.findType("html|UListElement()")))(),
    VoidToUnderlyingSourceBase: () => (T$6.VoidToUnderlyingSourceBase = dart.constFn(dart_rti.findType("html|UnderlyingSourceBase()")))(),
    ObjectToFuture: () => (T$6.ObjectToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|Object)")))(),
    VoidToUnknownElement: () => (T$6.VoidToUnknownElement = dart.constFn(dart_rti.findType("html|UnknownElement()")))(),
    MediaSourceToString: () => (T$6.MediaSourceToString = dart.constFn(dart_rti.findType("core|String(html|MediaSource)")))(),
    MediaStreamToString: () => (T$6.MediaStreamToString = dart.constFn(dart_rti.findType("core|String(html|MediaStream)")))(),
    BlobToString: () => (T$6.BlobToString = dart.constFn(dart_rti.findType("core|String(html|Blob)")))(),
    VoidToUrl: () => (T$6.VoidToUrl = dart.constFn(dart_rti.findType("html|Url()")))(),
    UrlSearchParamsN: () => (T$6.UrlSearchParamsN = dart.constFn(dart_rti.findType("html|UrlSearchParams?")))(),
    VoidToUrlSearchParams: () => (T$6.VoidToUrlSearchParams = dart.constFn(dart_rti.findType("html|UrlSearchParams()")))(),
    ObjectNToUrlSearchParams: () => (T$6.ObjectNToUrlSearchParams = dart.constFn(dart_rti.findType("html|UrlSearchParams([core|Object?])")))(),
    dynamicToUrlSearchParams: () => (T$6.dynamicToUrlSearchParams = dart.constFn(dart_rti.findType("html|UrlSearchParams(@)")))(),
    VoidToUrlUtilsReadOnly: () => (T$6.VoidToUrlUtilsReadOnly = dart.constFn(dart_rti.findType("html|UrlUtilsReadOnly()")))(),
    VoidToVR: () => (T$6.VoidToVR = dart.constFn(dart_rti.findType("html|VR()")))(),
    VoidToVRCoordinateSystem: () => (T$6.VoidToVRCoordinateSystem = dart.constFn(dart_rti.findType("html|VRCoordinateSystem()")))(),
    VRCoordinateSystemToFloat32ListN: () => (T$6.VRCoordinateSystemToFloat32ListN = dart.constFn(dart_rti.findType("typed_data|Float32List?(html|VRCoordinateSystem)")))(),
    VoidToVRDevice: () => (T$6.VoidToVRDevice = dart.constFn(dart_rti.findType("html|VRDevice()")))(),
    VoidToVRDeviceEvent: () => (T$6.VoidToVRDeviceEvent = dart.constFn(dart_rti.findType("html|VRDeviceEvent()")))(),
    StringAndMapToVRDeviceEvent: () => (T$6.StringAndMapToVRDeviceEvent = dart.constFn(dart_rti.findType("html|VRDeviceEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToVRDeviceEvent: () => (T$6.dynamicAnddynamicToVRDeviceEvent = dart.constFn(dart_rti.findType("html|VRDeviceEvent(@,@)")))(),
    VRDeviceN: () => (T$6.VRDeviceN = dart.constFn(dart_rti.findType("html|VRDevice?")))(),
    VoidToVRDisplay: () => (T$6.VoidToVRDisplay = dart.constFn(dart_rti.findType("html|VRDisplay()")))(),
    VRDisplayCapabilitiesN: () => (T$6.VRDisplayCapabilitiesN = dart.constFn(dart_rti.findType("html|VRDisplayCapabilities?")))(),
    VRStageParametersN: () => (T$6.VRStageParametersN = dart.constFn(dart_rti.findType("html|VRStageParameters?")))(),
    StringToVREyeParameters: () => (T$6.StringToVREyeParameters = dart.constFn(dart_rti.findType("html|VREyeParameters(core|String)")))(),
    VRFrameDataTobool: () => (T$6.VRFrameDataTobool = dart.constFn(dart_rti.findType("core|bool(html|VRFrameData)")))(),
    FnToint$1: () => (T$6.FnToint$1 = dart.constFn(dart_rti.findType("core|int(~(core|num))")))(),
    ListOfMapToFuture: () => (T$6.ListOfMapToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|List<core|Map<@,@>>)")))(),
    VoidToVRDisplayCapabilities: () => (T$6.VoidToVRDisplayCapabilities = dart.constFn(dart_rti.findType("html|VRDisplayCapabilities()")))(),
    VoidToVRDisplayEvent: () => (T$6.VoidToVRDisplayEvent = dart.constFn(dart_rti.findType("html|VRDisplayEvent()")))(),
    StringAndMapNToVRDisplayEvent: () => (T$6.StringAndMapNToVRDisplayEvent = dart.constFn(dart_rti.findType("html|VRDisplayEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToVRDisplayEvent: () => (T$6.dynamicAnddynamicToVRDisplayEvent = dart.constFn(dart_rti.findType("html|VRDisplayEvent(@,@)")))(),
    dynamicToVRDisplayEvent: () => (T$6.dynamicToVRDisplayEvent = dart.constFn(dart_rti.findType("html|VRDisplayEvent(@)")))(),
    VRDisplayN: () => (T$6.VRDisplayN = dart.constFn(dart_rti.findType("html|VRDisplay?")))(),
    VoidToVREyeParameters: () => (T$6.VoidToVREyeParameters = dart.constFn(dart_rti.findType("html|VREyeParameters()")))(),
    VoidToVRFrameData: () => (T$6.VoidToVRFrameData = dart.constFn(dart_rti.findType("html|VRFrameData()")))(),
    VRPoseN: () => (T$6.VRPoseN = dart.constFn(dart_rti.findType("html|VRPose?")))(),
    VoidToVRFrameOfReference: () => (T$6.VoidToVRFrameOfReference = dart.constFn(dart_rti.findType("html|VRFrameOfReference()")))(),
    VRStageBoundsN: () => (T$6.VRStageBoundsN = dart.constFn(dart_rti.findType("html|VRStageBounds?")))(),
    VoidToVRPose: () => (T$6.VoidToVRPose = dart.constFn(dart_rti.findType("html|VRPose()")))(),
    VoidToVRSession: () => (T$6.VoidToVRSession = dart.constFn(dart_rti.findType("html|VRSession()")))(),
    VoidToVRSessionEvent: () => (T$6.VoidToVRSessionEvent = dart.constFn(dart_rti.findType("html|VRSessionEvent()")))(),
    StringAndMapToVRSessionEvent: () => (T$6.StringAndMapToVRSessionEvent = dart.constFn(dart_rti.findType("html|VRSessionEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToVRSessionEvent: () => (T$6.dynamicAnddynamicToVRSessionEvent = dart.constFn(dart_rti.findType("html|VRSessionEvent(@,@)")))(),
    VRSessionN: () => (T$6.VRSessionN = dart.constFn(dart_rti.findType("html|VRSession?")))(),
    VoidToVRStageBounds: () => (T$6.VoidToVRStageBounds = dart.constFn(dart_rti.findType("html|VRStageBounds()")))(),
    ListNOfVRStageBoundsPoint: () => (T$6.ListNOfVRStageBoundsPoint = dart.constFn(dart_rti.findType("core|List<html|VRStageBoundsPoint>?")))(),
    VoidToVRStageBoundsPoint: () => (T$6.VoidToVRStageBoundsPoint = dart.constFn(dart_rti.findType("html|VRStageBoundsPoint()")))(),
    VoidToVRStageParameters: () => (T$6.VoidToVRStageParameters = dart.constFn(dart_rti.findType("html|VRStageParameters()")))(),
    VoidToValidityState: () => (T$6.VoidToValidityState = dart.constFn(dart_rti.findType("html|ValidityState()")))(),
    VoidToVideoElement: () => (T$6.VoidToVideoElement = dart.constFn(dart_rti.findType("html|VideoElement()")))(),
    VoidToVideoPlaybackQuality: () => (T$6.VoidToVideoPlaybackQuality = dart.constFn(dart_rti.findType("html|VideoPlaybackQuality()")))(),
    VoidToVideoTrack: () => (T$6.VoidToVideoTrack = dart.constFn(dart_rti.findType("html|VideoTrack()")))(),
    SourceBufferN: () => (T$6.SourceBufferN = dart.constFn(dart_rti.findType("html|SourceBuffer?")))(),
    VoidToVideoTrackList: () => (T$6.VoidToVideoTrackList = dart.constFn(dart_rti.findType("html|VideoTrackList()")))(),
    intToVideoTrack: () => (T$6.intToVideoTrack = dart.constFn(dart_rti.findType("html|VideoTrack(core|int)")))(),
    StringToVideoTrackN: () => (T$6.StringToVideoTrackN = dart.constFn(dart_rti.findType("html|VideoTrack?(core|String)")))(),
    VoidToVisualViewport: () => (T$6.VoidToVisualViewport = dart.constFn(dart_rti.findType("html|VisualViewport()")))(),
    VoidToVttCue: () => (T$6.VoidToVttCue = dart.constFn(dart_rti.findType("html|VttCue()")))(),
    numAndnumAndStringToVttCue: () => (T$6.numAndnumAndStringToVttCue = dart.constFn(dart_rti.findType("html|VttCue(core|num,core|num,core|String)")))(),
    dynamicAnddynamicAnddynamicToVttCue: () => (T$6.dynamicAnddynamicAnddynamicToVttCue = dart.constFn(dart_rti.findType("html|VttCue(@,@,@)")))(),
    VttRegionN: () => (T$6.VttRegionN = dart.constFn(dart_rti.findType("html|VttRegion?")))(),
    VoidToVttRegion: () => (T$6.VoidToVttRegion = dart.constFn(dart_rti.findType("html|VttRegion()")))(),
    VoidToWebSocket: () => (T$6.VoidToWebSocket = dart.constFn(dart_rti.findType("html|WebSocket()")))(),
    StringAndObjectNToWebSocket: () => (T$6.StringAndObjectNToWebSocket = dart.constFn(dart_rti.findType("html|WebSocket(core|String[core|Object?])")))(),
    dynamicAnddynamicToWebSocket: () => (T$6.dynamicAnddynamicToWebSocket = dart.constFn(dart_rti.findType("html|WebSocket(@,@)")))(),
    dynamicToWebSocket: () => (T$6.dynamicToWebSocket = dart.constFn(dart_rti.findType("html|WebSocket(@)")))(),
    intNAndStringNTovoid: () => (T$6.intNAndStringNTovoid = dart.constFn(dart_rti.findType("~([core|int?,core|String?])")))(),
    StreamOfCloseEvent: () => (T$6.StreamOfCloseEvent = dart.constFn(dart_rti.findType("async|Stream<html|CloseEvent>")))(),
    EventStreamProviderOfCloseEvent: () => (T$6.EventStreamProviderOfCloseEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|CloseEvent>")))(),
    CloseEventL: () => (T$6.CloseEventL = dart.constFn(dart_rti.findType("html|CloseEvent*")))(),
    EventStreamProviderOfCloseEventL: () => (T$6.EventStreamProviderOfCloseEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|CloseEvent*>")))(),
    String__ToWheelEvent: () => (T$6.String__ToWheelEvent = dart.constFn(dart_rti.findType("html|WheelEvent(core|String{altKey:core|bool,button:core|int,canBubble:core|bool,cancelable:core|bool,clientX:core|int,clientY:core|int,ctrlKey:core|bool,deltaMode:core|int,deltaX:core|num,deltaY:core|num,deltaZ:core|num,detail:core|int,metaKey:core|bool,relatedTarget:html|EventTarget?,screenX:core|int,screenY:core|int,shiftKey:core|bool,view:html|Window?})")))(),
    StringAndMapNToWheelEvent: () => (T$6.StringAndMapNToWheelEvent = dart.constFn(dart_rti.findType("html|WheelEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToWheelEvent: () => (T$6.dynamicAnddynamicToWheelEvent = dart.constFn(dart_rti.findType("html|WheelEvent(@,@)")))(),
    dynamicToWheelEvent: () => (T$6.dynamicToWheelEvent = dart.constFn(dart_rti.findType("html|WheelEvent(@)")))(),
    StringAndboolAndbool__Tovoid$2: () => (T$6.StringAndboolAndbool__Tovoid$2 = dart.constFn(dart_rti.findType("~(core|String,core|bool,core|bool,html|Window,core|int,core|int,core|int,core|int,core|int,core|bool,core|bool,core|bool,core|bool,core|int,html|EventTarget,core|int)")))(),
    StringAndboolAndbool__Tovoid$3: () => (T$6.StringAndboolAndbool__Tovoid$3 = dart.constFn(dart_rti.findType("~(core|String,core|bool,core|bool,html|Window,core|int,core|int,core|int,core|int,core|int,core|int,html|EventTarget,core|String,core|int,core|int,core|int,core|int)")))(),
    Location: () => (T$6.Location = dart.constFn(dart_rti.findType("html|Location")))(),
    IdleDeadlineTovoid: () => (T$6.IdleDeadlineTovoid = dart.constFn(dart_rti.findType("~(html|IdleDeadline)")))(),
    FileSystem: () => (T$6.FileSystem = dart.constFn(dart_rti.findType("html|FileSystem")))(),
    FileSystemTovoid: () => (T$6.FileSystemTovoid = dart.constFn(dart_rti.findType("~(html|FileSystem)")))(),
    FutureOfnum: () => (T$6.FutureOfnum = dart.constFn(dart_rti.findType("async|Future<core|num>")))(),
    Document: () => (T$6.Document = dart.constFn(dart_rti.findType("html|Document")))(),
    dynamicAnddynamicToWindowBaseN: () => (T$6.dynamicAnddynamicToWindowBaseN = dart.constFn(dart_rti.findType("html|WindowBase?(@,@)")))(),
    dynamicAnddynamicAnddynamicToWindowBaseN: () => (T$6.dynamicAnddynamicAnddynamicToWindowBaseN = dart.constFn(dart_rti.findType("html|WindowBase?(@,@,@)")))(),
    StringAndStringAndStringNToWindowBase: () => (T$6.StringAndStringAndStringNToWindowBase = dart.constFn(dart_rti.findType("html|WindowBase(core|String,core|String[core|String?])")))(),
    LocationBase: () => (T$6.LocationBase = dart.constFn(dart_rti.findType("html|LocationBase")))(),
    Console: () => (T$6.Console = dart.constFn(dart_rti.findType("html|Console")))(),
    int__ToFutureOfFileSystem: () => (T$6.int__ToFutureOfFileSystem = dart.constFn(dart_rti.findType("async|Future<html|FileSystem>(core|int{persistent:core|bool})")))(),
    VoidToWindow: () => (T$6.VoidToWindow = dart.constFn(dart_rti.findType("html|Window()")))(),
    ApplicationCacheN: () => (T$6.ApplicationCacheN = dart.constFn(dart_rti.findType("html|ApplicationCache?")))(),
    CookieStoreN: () => (T$6.CookieStoreN = dart.constFn(dart_rti.findType("html|CookieStore?")))(),
    CustomElementRegistryN: () => (T$6.CustomElementRegistryN = dart.constFn(dart_rti.findType("html|CustomElementRegistry?")))(),
    ExternalN: () => (T$6.ExternalN = dart.constFn(dart_rti.findType("html|External?")))(),
    History: () => (T$6.History = dart.constFn(dart_rti.findType("html|History")))(),
    Storage: () => (T$6.Storage = dart.constFn(dart_rti.findType("html|Storage")))(),
    BarPropN: () => (T$6.BarPropN = dart.constFn(dart_rti.findType("html|BarProp?")))(),
    Navigator: () => (T$6.Navigator = dart.constFn(dart_rti.findType("html|Navigator")))(),
    Performance: () => (T$6.Performance = dart.constFn(dart_rti.findType("html|Performance")))(),
    ScreenN: () => (T$6.ScreenN = dart.constFn(dart_rti.findType("html|Screen?")))(),
    SpeechSynthesisN: () => (T$6.SpeechSynthesisN = dart.constFn(dart_rti.findType("html|SpeechSynthesis?")))(),
    StyleMediaN: () => (T$6.StyleMediaN = dart.constFn(dart_rti.findType("html|StyleMedia?")))(),
    VisualViewportN: () => (T$6.VisualViewportN = dart.constFn(dart_rti.findType("html|VisualViewport?")))(),
    dynamicToWindowBase: () => (T$6.dynamicToWindowBase = dart.constFn(dart_rti.findType("html|WindowBase(@)")))(),
    StringNTobool$1: () => (T$6.StringNTobool$1 = dart.constFn(dart_rti.findType("core|bool([core|String?])")))(),
    StringNAndboolNAndboolN__Tobool: () => (T$6.StringNAndboolNAndboolN__Tobool = dart.constFn(dart_rti.findType("core|bool(core|String?,core|bool?,core|bool?,core|bool?,core|bool?,core|bool?,core|bool?)")))(),
    ElementAndStringNToCssStyleDeclaration: () => (T$6.ElementAndStringNToCssStyleDeclaration = dart.constFn(dart_rti.findType("html|CssStyleDeclaration(html|Element[core|String?])")))(),
    ElementAndStringNToStylePropertyMapReadonly: () => (T$6.ElementAndStringNToStylePropertyMapReadonly = dart.constFn(dart_rti.findType("html|StylePropertyMapReadonly(html|Element,core|String?)")))(),
    ElementNAndStringNToListOfCssRule: () => (T$6.ElementNAndStringNToListOfCssRule = dart.constFn(dart_rti.findType("core|List<html|CssRule>(html|Element?,core|String?)")))(),
    StringToMediaQueryList: () => (T$6.StringToMediaQueryList = dart.constFn(dart_rti.findType("html|MediaQueryList(core|String)")))(),
    dynamicAndStringAndListNOfObjectTovoid: () => (T$6.dynamicAndStringAndListNOfObjectTovoid = dart.constFn(dart_rti.findType("~(@,core|String[core|List<core|Object>?])")))(),
    dynamicAnddynamicAndListOfObjectTovoid: () => (T$6.dynamicAnddynamicAndListOfObjectTovoid = dart.constFn(dart_rti.findType("~(@,@,core|List<core|Object>)")))(),
    FnAndMapNToint: () => (T$6.FnAndMapNToint = dart.constFn(dart_rti.findType("core|int(~(html|IdleDeadline)[core|Map<@,@>?])")))(),
    dynamicAnddynamicAndMapNTovoid: () => (T$6.dynamicAnddynamicAndMapNTovoid = dart.constFn(dart_rti.findType("~([@,@,core|Map<@,@>?])")))(),
    numNAndnumNTovoid: () => (T$6.numNAndnumNTovoid = dart.constFn(dart_rti.findType("~(core|num?,core|num?)")))(),
    intNAndintNTovoid: () => (T$6.intNAndintNTovoid = dart.constFn(dart_rti.findType("~(core|int?,core|int?)")))(),
    intNAndintNAnddynamicTovoid: () => (T$6.intNAndintNAnddynamicTovoid = dart.constFn(dart_rti.findType("~(core|int?,core|int?,@)")))(),
    intAndintAndFn__Tovoid$2: () => (T$6.intAndintAndFn__Tovoid$2 = dart.constFn(dart_rti.findType("~(core|int,core|int,~(html|FileSystem)[~(html|DomException)?])")))(),
    intAndintToFutureOfFileSystem: () => (T$6.intAndintToFutureOfFileSystem = dart.constFn(dart_rti.findType("async|Future<html|FileSystem>(core|int,core|int)")))(),
    StreamOfDeviceMotionEvent: () => (T$6.StreamOfDeviceMotionEvent = dart.constFn(dart_rti.findType("async|Stream<html|DeviceMotionEvent>")))(),
    StreamOfDeviceOrientationEvent: () => (T$6.StreamOfDeviceOrientationEvent = dart.constFn(dart_rti.findType("async|Stream<html|DeviceOrientationEvent>")))(),
    StreamOfPopStateEvent: () => (T$6.StreamOfPopStateEvent = dart.constFn(dart_rti.findType("async|Stream<html|PopStateEvent>")))(),
    StreamOfStorageEvent: () => (T$6.StreamOfStorageEvent = dart.constFn(dart_rti.findType("async|Stream<html|StorageEvent>")))(),
    StreamOfTransitionEvent: () => (T$6.StreamOfTransitionEvent = dart.constFn(dart_rti.findType("async|Stream<html|TransitionEvent>")))(),
    StreamOfAnimationEvent: () => (T$6.StreamOfAnimationEvent = dart.constFn(dart_rti.findType("async|Stream<html|AnimationEvent>")))(),
    PointOfnumTovoid: () => (T$6.PointOfnumTovoid = dart.constFn(dart_rti.findType("~(math|Point<core|num>)")))(),
    EventStreamProviderOfDeviceMotionEvent: () => (T$6.EventStreamProviderOfDeviceMotionEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|DeviceMotionEvent>")))(),
    EventStreamProviderOfDeviceOrientationEvent: () => (T$6.EventStreamProviderOfDeviceOrientationEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|DeviceOrientationEvent>")))(),
    EventStreamProviderOfAnimationEvent: () => (T$6.EventStreamProviderOfAnimationEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|AnimationEvent>")))(),
    EventStreamProviderOfBeforeUnloadEvent: () => (T$6.EventStreamProviderOfBeforeUnloadEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|BeforeUnloadEvent>")))(),
    DeviceMotionEventL: () => (T$6.DeviceMotionEventL = dart.constFn(dart_rti.findType("html|DeviceMotionEvent*")))(),
    EventStreamProviderOfDeviceMotionEventL: () => (T$6.EventStreamProviderOfDeviceMotionEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|DeviceMotionEvent*>")))(),
    DeviceOrientationEventL: () => (T$6.DeviceOrientationEventL = dart.constFn(dart_rti.findType("html|DeviceOrientationEvent*")))(),
    EventStreamProviderOfDeviceOrientationEventL: () => (T$6.EventStreamProviderOfDeviceOrientationEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|DeviceOrientationEvent*>")))(),
    AnimationEventL: () => (T$6.AnimationEventL = dart.constFn(dart_rti.findType("html|AnimationEvent*")))(),
    EventStreamProviderOfAnimationEventL: () => (T$6.EventStreamProviderOfAnimationEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|AnimationEvent*>")))(),
    BeforeUnloadEventL: () => (T$6.BeforeUnloadEventL = dart.constFn(dart_rti.findType("html|BeforeUnloadEvent*")))(),
    EventStreamProviderOfBeforeUnloadEventL: () => (T$6.EventStreamProviderOfBeforeUnloadEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|BeforeUnloadEvent*>")))(),
    VoidToWindowBase64: () => (T$6.VoidToWindowBase64 = dart.constFn(dart_rti.findType("html|WindowBase64()")))(),
    VoidToWindowClient: () => (T$6.VoidToWindowClient = dart.constFn(dart_rti.findType("html|WindowClient()")))(),
    VoidToFutureOfWindowClient: () => (T$6.VoidToFutureOfWindowClient = dart.constFn(dart_rti.findType("async|Future<html|WindowClient>()")))(),
    VoidToWindowEventHandlers: () => (T$6.VoidToWindowEventHandlers = dart.constFn(dart_rti.findType("html|WindowEventHandlers()")))(),
    VoidToWorker: () => (T$6.VoidToWorker = dart.constFn(dart_rti.findType("html|Worker()")))(),
    StringToWorker: () => (T$6.StringToWorker = dart.constFn(dart_rti.findType("html|Worker(core|String)")))(),
    dynamicToWorker: () => (T$6.dynamicToWorker = dart.constFn(dart_rti.findType("html|Worker(@)")))(),
    VoidToWorkerPerformance: () => (T$6.VoidToWorkerPerformance = dart.constFn(dart_rti.findType("html|WorkerPerformance()")))(),
    StringAndStringNAndStringNTovoid$1: () => (T$6.StringAndStringNAndStringNTovoid$1 = dart.constFn(dart_rti.findType("~(core|String,core|String?,core|String?)")))(),
    VoidToWorkletAnimation: () => (T$6.VoidToWorkletAnimation = dart.constFn(dart_rti.findType("html|WorkletAnimation()")))(),
    StringAndListOfKeyframeEffectReadOnlyAndListOfObject__ToWorkletAnimation: () => (T$6.StringAndListOfKeyframeEffectReadOnlyAndListOfObject__ToWorkletAnimation = dart.constFn(dart_rti.findType("html|WorkletAnimation(core|String,core|List<html|KeyframeEffectReadOnly>,core|List<core|Object>,@)")))(),
    dynamicAnddynamicAnddynamic__ToWorkletAnimation: () => (T$6.dynamicAnddynamicAnddynamic__ToWorkletAnimation = dart.constFn(dart_rti.findType("html|WorkletAnimation(@,@,@,@)")))(),
    VoidToXPathEvaluator: () => (T$6.VoidToXPathEvaluator = dart.constFn(dart_rti.findType("html|XPathEvaluator()")))(),
    StringAndXPathNSResolverNToXPathExpression: () => (T$6.StringAndXPathNSResolverNToXPathExpression = dart.constFn(dart_rti.findType("html|XPathExpression(core|String,html|XPathNSResolver?)")))(),
    NodeToXPathNSResolver: () => (T$6.NodeToXPathNSResolver = dart.constFn(dart_rti.findType("html|XPathNSResolver(html|Node)")))(),
    StringAndNodeAndXPathNSResolverN__ToXPathResult: () => (T$6.StringAndNodeAndXPathNSResolverN__ToXPathResult = dart.constFn(dart_rti.findType("html|XPathResult(core|String,html|Node,html|XPathNSResolver?[core|int?,core|Object?])")))(),
    VoidToXPathExpression: () => (T$6.VoidToXPathExpression = dart.constFn(dart_rti.findType("html|XPathExpression()")))(),
    NodeAndintNAndObjectNToXPathResult: () => (T$6.NodeAndintNAndObjectNToXPathResult = dart.constFn(dart_rti.findType("html|XPathResult(html|Node[core|int?,core|Object?])")))(),
    VoidToXPathNSResolver: () => (T$6.VoidToXPathNSResolver = dart.constFn(dart_rti.findType("html|XPathNSResolver()")))(),
    StringNToStringN: () => (T$6.StringNToStringN = dart.constFn(dart_rti.findType("core|String?(core|String?)")))(),
    VoidToXPathResult: () => (T$6.VoidToXPathResult = dart.constFn(dart_rti.findType("html|XPathResult()")))(),
    VoidToXmlDocument: () => (T$6.VoidToXmlDocument = dart.constFn(dart_rti.findType("html|XmlDocument()")))(),
    VoidToXmlSerializer: () => (T$6.VoidToXmlSerializer = dart.constFn(dart_rti.findType("html|XmlSerializer()")))(),
    NodeToString: () => (T$6.NodeToString = dart.constFn(dart_rti.findType("core|String(html|Node)")))(),
    VoidToXsltProcessor: () => (T$6.VoidToXsltProcessor = dart.constFn(dart_rti.findType("html|XsltProcessor()")))(),
    StringNAndStringAndStringTovoid: () => (T$6.StringNAndStringAndStringTovoid = dart.constFn(dart_rti.findType("~(core|String?,core|String,core|String)")))(),
    NodeToDocumentN: () => (T$6.NodeToDocumentN = dart.constFn(dart_rti.findType("html|Document?(html|Node)")))(),
    NodeAndDocumentToDocumentFragmentN: () => (T$6.NodeAndDocumentToDocumentFragmentN = dart.constFn(dart_rti.findType("html|DocumentFragment?(html|Node,html|Document)")))(),
    VoidTo_Attr: () => (T$6.VoidTo_Attr = dart.constFn(dart_rti.findType("html|_Attr()")))(),
    VoidTo_Bluetooth: () => (T$6.VoidTo_Bluetooth = dart.constFn(dart_rti.findType("html|_Bluetooth()")))(),
    VoidTo_BluetoothCharacteristicProperties: () => (T$6.VoidTo_BluetoothCharacteristicProperties = dart.constFn(dart_rti.findType("html|_BluetoothCharacteristicProperties()")))(),
    VoidTo_BluetoothDevice: () => (T$6.VoidTo_BluetoothDevice = dart.constFn(dart_rti.findType("html|_BluetoothDevice()")))(),
    VoidTo_BluetoothRemoteGATTCharacteristic: () => (T$6.VoidTo_BluetoothRemoteGATTCharacteristic = dart.constFn(dart_rti.findType("html|_BluetoothRemoteGATTCharacteristic()")))(),
    VoidTo_BluetoothRemoteGATTServer: () => (T$6.VoidTo_BluetoothRemoteGATTServer = dart.constFn(dart_rti.findType("html|_BluetoothRemoteGATTServer()")))(),
    VoidTo_BluetoothRemoteGATTService: () => (T$6.VoidTo_BluetoothRemoteGATTService = dart.constFn(dart_rti.findType("html|_BluetoothRemoteGATTService()")))(),
    VoidTo_BluetoothUUID: () => (T$6.VoidTo_BluetoothUUID = dart.constFn(dart_rti.findType("html|_BluetoothUUID()")))(),
    BudgetState: () => (T$6.BudgetState = dart.constFn(dart_rti.findType("html|BudgetState")))(),
    VoidTo_BudgetService: () => (T$6.VoidTo_BudgetService = dart.constFn(dart_rti.findType("html|_BudgetService()")))(),
    VoidToFutureOfBudgetState: () => (T$6.VoidToFutureOfBudgetState = dart.constFn(dart_rti.findType("async|Future<html|BudgetState>()")))(),
    StringToFutureOfdouble: () => (T$6.StringToFutureOfdouble = dart.constFn(dart_rti.findType("async|Future<core|double>(core|String)")))(),
    VoidTo_Cache: () => (T$6.VoidTo_Cache = dart.constFn(dart_rti.findType("html|_Cache()")))(),
    VoidTo_CanvasPath: () => (T$6.VoidTo_CanvasPath = dart.constFn(dart_rti.findType("html|_CanvasPath()")))(),
    VoidTo_Clipboard: () => (T$6.VoidTo_Clipboard = dart.constFn(dart_rti.findType("html|_Clipboard()")))(),
    VoidToFutureOfDataTransfer: () => (T$6.VoidToFutureOfDataTransfer = dart.constFn(dart_rti.findType("async|Future<html|DataTransfer>()")))(),
    DataTransferToFuture: () => (T$6.DataTransferToFuture = dart.constFn(dart_rti.findType("async|Future<@>(html|DataTransfer)")))(),
    CssRule: () => (T$6.CssRule = dart.constFn(dart_rti.findType("html|CssRule")))(),
    VoidTo_CssRuleList: () => (T$6.VoidTo_CssRuleList = dart.constFn(dart_rti.findType("html|_CssRuleList()")))(),
    intToCssRule: () => (T$6.intToCssRule = dart.constFn(dart_rti.findType("html|CssRule(core|int)")))(),
    intToCssRuleN: () => (T$6.intToCssRuleN = dart.constFn(dart_rti.findType("html|CssRule?(core|int)")))(),
    VoidTo_DOMFileSystemSync: () => (T$6.VoidTo_DOMFileSystemSync = dart.constFn(dart_rti.findType("html|_DOMFileSystemSync()")))(),
    VoidTo_EntrySync: () => (T$6.VoidTo_EntrySync = dart.constFn(dart_rti.findType("html|_EntrySync()")))(),
    VoidTo_DirectoryEntrySync: () => (T$6.VoidTo_DirectoryEntrySync = dart.constFn(dart_rti.findType("html|_DirectoryEntrySync()")))(),
    VoidTo_DirectoryReaderSync: () => (T$6.VoidTo_DirectoryReaderSync = dart.constFn(dart_rti.findType("html|_DirectoryReaderSync()")))(),
    VoidTo_DocumentType: () => (T$6.VoidTo_DocumentType = dart.constFn(dart_rti.findType("html|_DocumentType()")))(),
    VoidTo_DomRect: () => (T$6.VoidTo_DomRect = dart.constFn(dart_rti.findType("html|_DomRect()")))(),
    numNAndnumNAndnumN__To_DomRect: () => (T$6.numNAndnumNAndnumN__To_DomRect = dart.constFn(dart_rti.findType("html|_DomRect([core|num?,core|num?,core|num?,core|num?])")))(),
    dynamicAnddynamicAnddynamic__To_DomRect: () => (T$6.dynamicAnddynamicAnddynamic__To_DomRect = dart.constFn(dart_rti.findType("html|_DomRect(@,@,@,@)")))(),
    dynamicAnddynamicAnddynamicTo_DomRect: () => (T$6.dynamicAnddynamicAnddynamicTo_DomRect = dart.constFn(dart_rti.findType("html|_DomRect(@,@,@)")))(),
    dynamicAnddynamicTo_DomRect: () => (T$6.dynamicAnddynamicTo_DomRect = dart.constFn(dart_rti.findType("html|_DomRect(@,@)")))(),
    dynamicTo_DomRect: () => (T$6.dynamicTo_DomRect = dart.constFn(dart_rti.findType("html|_DomRect(@)")))(),
    VoidTo_FileEntrySync: () => (T$6.VoidTo_FileEntrySync = dart.constFn(dart_rti.findType("html|_FileEntrySync()")))(),
    VoidTo_FileReaderSync: () => (T$6.VoidTo_FileReaderSync = dart.constFn(dart_rti.findType("html|_FileReaderSync()")))(),
    VoidTo_FileWriterSync: () => (T$6.VoidTo_FileWriterSync = dart.constFn(dart_rti.findType("html|_FileWriterSync()")))(),
    VoidTo_GamepadList: () => (T$6.VoidTo_GamepadList = dart.constFn(dart_rti.findType("html|_GamepadList()")))(),
    intToGamepadN: () => (T$6.intToGamepadN = dart.constFn(dart_rti.findType("html|Gamepad?(core|int)")))(),
    intNToGamepad: () => (T$6.intNToGamepad = dart.constFn(dart_rti.findType("html|Gamepad(core|int?)")))(),
    VoidTo_HTMLAllCollection: () => (T$6.VoidTo_HTMLAllCollection = dart.constFn(dart_rti.findType("html|_HTMLAllCollection()")))(),
    intNToElement: () => (T$6.intNToElement = dart.constFn(dart_rti.findType("html|Element(core|int?)")))(),
    VoidTo_HTMLDirectoryElement: () => (T$6.VoidTo_HTMLDirectoryElement = dart.constFn(dart_rti.findType("html|_HTMLDirectoryElement()")))(),
    VoidTo_HTMLFontElement: () => (T$6.VoidTo_HTMLFontElement = dart.constFn(dart_rti.findType("html|_HTMLFontElement()")))(),
    VoidTo_HTMLFrameElement: () => (T$6.VoidTo_HTMLFrameElement = dart.constFn(dart_rti.findType("html|_HTMLFrameElement()")))(),
    VoidTo_HTMLFrameSetElement: () => (T$6.VoidTo_HTMLFrameSetElement = dart.constFn(dart_rti.findType("html|_HTMLFrameSetElement()")))(),
    VoidTo_HTMLMarqueeElement: () => (T$6.VoidTo_HTMLMarqueeElement = dart.constFn(dart_rti.findType("html|_HTMLMarqueeElement()")))(),
    VoidTo_Mojo: () => (T$6.VoidTo_Mojo = dart.constFn(dart_rti.findType("html|_Mojo()")))(),
    VoidTo_MojoHandle: () => (T$6.VoidTo_MojoHandle = dart.constFn(dart_rti.findType("html|_MojoHandle()")))(),
    VoidTo_MojoInterfaceInterceptor: () => (T$6.VoidTo_MojoInterfaceInterceptor = dart.constFn(dart_rti.findType("html|_MojoInterfaceInterceptor()")))(),
    StringAndStringNTo_MojoInterfaceInterceptor: () => (T$6.StringAndStringNTo_MojoInterfaceInterceptor = dart.constFn(dart_rti.findType("html|_MojoInterfaceInterceptor(core|String[core|String?])")))(),
    dynamicAnddynamicTo_MojoInterfaceInterceptor: () => (T$6.dynamicAnddynamicTo_MojoInterfaceInterceptor = dart.constFn(dart_rti.findType("html|_MojoInterfaceInterceptor(@,@)")))(),
    dynamicTo_MojoInterfaceInterceptor: () => (T$6.dynamicTo_MojoInterfaceInterceptor = dart.constFn(dart_rti.findType("html|_MojoInterfaceInterceptor(@)")))(),
    VoidTo_MojoInterfaceRequestEvent: () => (T$6.VoidTo_MojoInterfaceRequestEvent = dart.constFn(dart_rti.findType("html|_MojoInterfaceRequestEvent()")))(),
    StringAndMapNTo_MojoInterfaceRequestEvent: () => (T$6.StringAndMapNTo_MojoInterfaceRequestEvent = dart.constFn(dart_rti.findType("html|_MojoInterfaceRequestEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicTo_MojoInterfaceRequestEvent: () => (T$6.dynamicAnddynamicTo_MojoInterfaceRequestEvent = dart.constFn(dart_rti.findType("html|_MojoInterfaceRequestEvent(@,@)")))(),
    dynamicTo_MojoInterfaceRequestEvent: () => (T$6.dynamicTo_MojoInterfaceRequestEvent = dart.constFn(dart_rti.findType("html|_MojoInterfaceRequestEvent(@)")))(),
    VoidTo_MojoWatcher: () => (T$6.VoidTo_MojoWatcher = dart.constFn(dart_rti.findType("html|_MojoWatcher()")))(),
    VoidTo_NFC: () => (T$6.VoidTo_NFC = dart.constFn(dart_rti.findType("html|_NFC()")))(),
    VoidTo_NamedNodeMap: () => (T$6.VoidTo_NamedNodeMap = dart.constFn(dart_rti.findType("html|_NamedNodeMap()")))(),
    StringTo_AttrN: () => (T$6.StringTo_AttrN = dart.constFn(dart_rti.findType("html|_Attr?(core|String)")))(),
    StringNAndStringTo_AttrN: () => (T$6.StringNAndStringTo_AttrN = dart.constFn(dart_rti.findType("html|_Attr?(core|String?,core|String)")))(),
    intTo_AttrN: () => (T$6.intTo_AttrN = dart.constFn(dart_rti.findType("html|_Attr?(core|int)")))(),
    StringTo_Attr: () => (T$6.StringTo_Attr = dart.constFn(dart_rti.findType("html|_Attr(core|String)")))(),
    StringNAndStringTo_Attr: () => (T$6.StringNAndStringTo_Attr = dart.constFn(dart_rti.findType("html|_Attr(core|String?,core|String)")))(),
    _AttrTo_AttrN: () => (T$6._AttrTo_AttrN = dart.constFn(dart_rti.findType("html|_Attr?(html|_Attr)")))(),
    VoidTo_PagePopupController: () => (T$6.VoidTo_PagePopupController = dart.constFn(dart_rti.findType("html|_PagePopupController()")))(),
    VoidTo_Report: () => (T$6.VoidTo_Report = dart.constFn(dart_rti.findType("html|_Report()")))(),
    ReportBodyN: () => (T$6.ReportBodyN = dart.constFn(dart_rti.findType("html|ReportBody?")))(),
    VoidTo_Request: () => (T$6.VoidTo_Request = dart.constFn(dart_rti.findType("html|_Request()")))(),
    ObjectAndMapNTo_Request: () => (T$6.ObjectAndMapNTo_Request = dart.constFn(dart_rti.findType("html|_Request(core|Object[core|Map<@,@>?])")))(),
    dynamicAnddynamicTo_Request: () => (T$6.dynamicAnddynamicTo_Request = dart.constFn(dart_rti.findType("html|_Request(@,@)")))(),
    dynamicTo_Request: () => (T$6.dynamicTo_Request = dart.constFn(dart_rti.findType("html|_Request(@)")))(),
    HeadersN: () => (T$6.HeadersN = dart.constFn(dart_rti.findType("html|Headers?")))(),
    VoidTo_ResourceProgressEvent: () => (T$6.VoidTo_ResourceProgressEvent = dart.constFn(dart_rti.findType("html|_ResourceProgressEvent()")))(),
    VoidTo_Response: () => (T$6.VoidTo_Response = dart.constFn(dart_rti.findType("html|_Response()")))(),
    ObjectNAndMapNTo_Response: () => (T$6.ObjectNAndMapNTo_Response = dart.constFn(dart_rti.findType("html|_Response([core|Object?,core|Map<@,@>?])")))(),
    dynamicAnddynamicTo_Response: () => (T$6.dynamicAnddynamicTo_Response = dart.constFn(dart_rti.findType("html|_Response(@,@)")))(),
    dynamicTo_Response: () => (T$6.dynamicTo_Response = dart.constFn(dart_rti.findType("html|_Response(@)")))(),
    SpeechRecognitionResult: () => (T$6.SpeechRecognitionResult = dart.constFn(dart_rti.findType("html|SpeechRecognitionResult")))(),
    VoidTo_SpeechRecognitionResultList: () => (T$6.VoidTo_SpeechRecognitionResultList = dart.constFn(dart_rti.findType("html|_SpeechRecognitionResultList()")))(),
    intToSpeechRecognitionResult: () => (T$6.intToSpeechRecognitionResult = dart.constFn(dart_rti.findType("html|SpeechRecognitionResult(core|int)")))(),
    StyleSheet: () => (T$6.StyleSheet = dart.constFn(dart_rti.findType("html|StyleSheet")))(),
    VoidTo_StyleSheetList: () => (T$6.VoidTo_StyleSheetList = dart.constFn(dart_rti.findType("html|_StyleSheetList()")))(),
    intToStyleSheet: () => (T$6.intToStyleSheet = dart.constFn(dart_rti.findType("html|StyleSheet(core|int)")))(),
    StringToCssStyleSheet: () => (T$6.StringToCssStyleSheet = dart.constFn(dart_rti.findType("html|CssStyleSheet(core|String)")))(),
    intToStyleSheetN: () => (T$6.intToStyleSheetN = dart.constFn(dart_rti.findType("html|StyleSheet?(core|int)")))(),
    VoidTo_SubtleCrypto: () => (T$6.VoidTo_SubtleCrypto = dart.constFn(dart_rti.findType("html|_SubtleCrypto()")))(),
    VoidTo_USB: () => (T$6.VoidTo_USB = dart.constFn(dart_rti.findType("html|_USB()")))(),
    VoidTo_USBAlternateInterface: () => (T$6.VoidTo_USBAlternateInterface = dart.constFn(dart_rti.findType("html|_USBAlternateInterface()")))(),
    _USBInterfaceAndintTo_USBAlternateInterface: () => (T$6._USBInterfaceAndintTo_USBAlternateInterface = dart.constFn(dart_rti.findType("html|_USBAlternateInterface(html|_USBInterface,core|int)")))(),
    dynamicAnddynamicTo_USBAlternateInterface: () => (T$6.dynamicAnddynamicTo_USBAlternateInterface = dart.constFn(dart_rti.findType("html|_USBAlternateInterface(@,@)")))(),
    VoidTo_USBConfiguration: () => (T$6.VoidTo_USBConfiguration = dart.constFn(dart_rti.findType("html|_USBConfiguration()")))(),
    _USBDeviceAndintTo_USBConfiguration: () => (T$6._USBDeviceAndintTo_USBConfiguration = dart.constFn(dart_rti.findType("html|_USBConfiguration(html|_USBDevice,core|int)")))(),
    dynamicAnddynamicTo_USBConfiguration: () => (T$6.dynamicAnddynamicTo_USBConfiguration = dart.constFn(dart_rti.findType("html|_USBConfiguration(@,@)")))(),
    VoidTo_USBConnectionEvent: () => (T$6.VoidTo_USBConnectionEvent = dart.constFn(dart_rti.findType("html|_USBConnectionEvent()")))(),
    StringAndMapTo_USBConnectionEvent: () => (T$6.StringAndMapTo_USBConnectionEvent = dart.constFn(dart_rti.findType("html|_USBConnectionEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicTo_USBConnectionEvent: () => (T$6.dynamicAnddynamicTo_USBConnectionEvent = dart.constFn(dart_rti.findType("html|_USBConnectionEvent(@,@)")))(),
    VoidTo_USBDevice: () => (T$6.VoidTo_USBDevice = dart.constFn(dart_rti.findType("html|_USBDevice()")))(),
    VoidTo_USBEndpoint: () => (T$6.VoidTo_USBEndpoint = dart.constFn(dart_rti.findType("html|_USBEndpoint()")))(),
    _USBAlternateInterfaceAndintAndStringTo_USBEndpoint: () => (T$6._USBAlternateInterfaceAndintAndStringTo_USBEndpoint = dart.constFn(dart_rti.findType("html|_USBEndpoint(html|_USBAlternateInterface,core|int,core|String)")))(),
    dynamicAnddynamicAnddynamicTo_USBEndpoint: () => (T$6.dynamicAnddynamicAnddynamicTo_USBEndpoint = dart.constFn(dart_rti.findType("html|_USBEndpoint(@,@,@)")))(),
    VoidTo_USBInTransferResult: () => (T$6.VoidTo_USBInTransferResult = dart.constFn(dart_rti.findType("html|_USBInTransferResult()")))(),
    StringAndByteDataNTo_USBInTransferResult: () => (T$6.StringAndByteDataNTo_USBInTransferResult = dart.constFn(dart_rti.findType("html|_USBInTransferResult(core|String[typed_data|ByteData?])")))(),
    dynamicAnddynamicTo_USBInTransferResult: () => (T$6.dynamicAnddynamicTo_USBInTransferResult = dart.constFn(dart_rti.findType("html|_USBInTransferResult(@,@)")))(),
    dynamicTo_USBInTransferResult: () => (T$6.dynamicTo_USBInTransferResult = dart.constFn(dart_rti.findType("html|_USBInTransferResult(@)")))(),
    VoidTo_USBInterface: () => (T$6.VoidTo_USBInterface = dart.constFn(dart_rti.findType("html|_USBInterface()")))(),
    _USBConfigurationAndintTo_USBInterface: () => (T$6._USBConfigurationAndintTo_USBInterface = dart.constFn(dart_rti.findType("html|_USBInterface(html|_USBConfiguration,core|int)")))(),
    dynamicAnddynamicTo_USBInterface: () => (T$6.dynamicAnddynamicTo_USBInterface = dart.constFn(dart_rti.findType("html|_USBInterface(@,@)")))(),
    VoidTo_USBIsochronousInTransferPacket: () => (T$6.VoidTo_USBIsochronousInTransferPacket = dart.constFn(dart_rti.findType("html|_USBIsochronousInTransferPacket()")))(),
    StringAndByteDataNTo_USBIsochronousInTransferPacket: () => (T$6.StringAndByteDataNTo_USBIsochronousInTransferPacket = dart.constFn(dart_rti.findType("html|_USBIsochronousInTransferPacket(core|String[typed_data|ByteData?])")))(),
    dynamicAnddynamicTo_USBIsochronousInTransferPacket: () => (T$6.dynamicAnddynamicTo_USBIsochronousInTransferPacket = dart.constFn(dart_rti.findType("html|_USBIsochronousInTransferPacket(@,@)")))(),
    dynamicTo_USBIsochronousInTransferPacket: () => (T$6.dynamicTo_USBIsochronousInTransferPacket = dart.constFn(dart_rti.findType("html|_USBIsochronousInTransferPacket(@)")))(),
    VoidTo_USBIsochronousInTransferResult: () => (T$6.VoidTo_USBIsochronousInTransferResult = dart.constFn(dart_rti.findType("html|_USBIsochronousInTransferResult()")))(),
    ListOf_USBIsochronousInTransferPacketAndByteDataNTo_USBIsochronousInTransferResult: () => (T$6.ListOf_USBIsochronousInTransferPacketAndByteDataNTo_USBIsochronousInTransferResult = dart.constFn(dart_rti.findType("html|_USBIsochronousInTransferResult(core|List<html|_USBIsochronousInTransferPacket>[typed_data|ByteData?])")))(),
    dynamicAnddynamicTo_USBIsochronousInTransferResult: () => (T$6.dynamicAnddynamicTo_USBIsochronousInTransferResult = dart.constFn(dart_rti.findType("html|_USBIsochronousInTransferResult(@,@)")))(),
    dynamicTo_USBIsochronousInTransferResult: () => (T$6.dynamicTo_USBIsochronousInTransferResult = dart.constFn(dart_rti.findType("html|_USBIsochronousInTransferResult(@)")))(),
    VoidTo_USBIsochronousOutTransferPacket: () => (T$6.VoidTo_USBIsochronousOutTransferPacket = dart.constFn(dart_rti.findType("html|_USBIsochronousOutTransferPacket()")))(),
    StringAndintNTo_USBIsochronousOutTransferPacket: () => (T$6.StringAndintNTo_USBIsochronousOutTransferPacket = dart.constFn(dart_rti.findType("html|_USBIsochronousOutTransferPacket(core|String[core|int?])")))(),
    dynamicAnddynamicTo_USBIsochronousOutTransferPacket: () => (T$6.dynamicAnddynamicTo_USBIsochronousOutTransferPacket = dart.constFn(dart_rti.findType("html|_USBIsochronousOutTransferPacket(@,@)")))(),
    dynamicTo_USBIsochronousOutTransferPacket: () => (T$6.dynamicTo_USBIsochronousOutTransferPacket = dart.constFn(dart_rti.findType("html|_USBIsochronousOutTransferPacket(@)")))(),
    VoidTo_USBIsochronousOutTransferResult: () => (T$6.VoidTo_USBIsochronousOutTransferResult = dart.constFn(dart_rti.findType("html|_USBIsochronousOutTransferResult()")))(),
    ListOf_USBIsochronousOutTransferPacketTo_USBIsochronousOutTransferResult: () => (T$6.ListOf_USBIsochronousOutTransferPacketTo_USBIsochronousOutTransferResult = dart.constFn(dart_rti.findType("html|_USBIsochronousOutTransferResult(core|List<html|_USBIsochronousOutTransferPacket>)")))(),
    dynamicTo_USBIsochronousOutTransferResult: () => (T$6.dynamicTo_USBIsochronousOutTransferResult = dart.constFn(dart_rti.findType("html|_USBIsochronousOutTransferResult(@)")))(),
    VoidTo_USBOutTransferResult: () => (T$6.VoidTo_USBOutTransferResult = dart.constFn(dart_rti.findType("html|_USBOutTransferResult()")))(),
    StringAndintNTo_USBOutTransferResult: () => (T$6.StringAndintNTo_USBOutTransferResult = dart.constFn(dart_rti.findType("html|_USBOutTransferResult(core|String[core|int?])")))(),
    dynamicAnddynamicTo_USBOutTransferResult: () => (T$6.dynamicAnddynamicTo_USBOutTransferResult = dart.constFn(dart_rti.findType("html|_USBOutTransferResult(@,@)")))(),
    dynamicTo_USBOutTransferResult: () => (T$6.dynamicTo_USBOutTransferResult = dart.constFn(dart_rti.findType("html|_USBOutTransferResult(@)")))(),
    VoidTo_WindowTimers: () => (T$6.VoidTo_WindowTimers = dart.constFn(dart_rti.findType("html|_WindowTimers()")))(),
    VoidTo_WorkerLocation: () => (T$6.VoidTo_WorkerLocation = dart.constFn(dart_rti.findType("html|_WorkerLocation()")))(),
    VoidTo_WorkerNavigator: () => (T$6.VoidTo_WorkerNavigator = dart.constFn(dart_rti.findType("html|_WorkerNavigator()")))(),
    VoidTo_Worklet: () => (T$6.VoidTo_Worklet = dart.constFn(dart_rti.findType("html|_Worklet()")))(),
    _AttributeMap: () => (T$6._AttributeMap = dart.constFn(dart_rti.findType("html|_AttributeMap")))(),
    _Attr: () => (T$6._Attr = dart.constFn(dart_rti.findType("html|_Attr")))(),
    _ElementAttributeMap: () => (T$6._ElementAttributeMap = dart.constFn(dart_rti.findType("html|_ElementAttributeMap")))(),
    _AttrTobool: () => (T$6._AttrTobool = dart.constFn(dart_rti.findType("core|bool(html|_Attr)")))(),
    ElementAndStringToStringN: () => (T$6.ElementAndStringToStringN = dart.constFn(dart_rti.findType("core|String?(html|Element,core|String)")))(),
    _NamespacedAttributeMap: () => (T$6._NamespacedAttributeMap = dart.constFn(dart_rti.findType("html|_NamespacedAttributeMap")))(),
    StringNAndElementAndStringToStringN: () => (T$6.StringNAndElementAndStringToStringN = dart.constFn(dart_rti.findType("core|String?(core|String?,html|Element,core|String)")))(),
    _DataAttributeMap: () => (T$6._DataAttributeMap = dart.constFn(dart_rti.findType("html|_DataAttributeMap")))(),
    String__ToString: () => (T$6.String__ToString = dart.constFn(dart_rti.findType("core|String(core|String{startUppercase:core|bool})")))(),
    Dimension: () => (T$6.Dimension = dart.constFn(dart_rti.findType("html|Dimension")))(),
    ListOfStringAndStringTonum: () => (T$6.ListOfStringAndStringTonum = dart.constFn(dart_rti.findType("core|num(core|List<core|String>,core|String)")))(),
    _MultiElementCssClassSet: () => (T$6._MultiElementCssClassSet = dart.constFn(dart_rti.findType("html|_MultiElementCssClassSet")))(),
    CssClassSetImpl: () => (T$6.CssClassSetImpl = dart.constFn(dart_rti.findType("html_common|CssClassSetImpl")))(),
    ElementToCssClassSet: () => (T$6.ElementToCssClassSet = dart.constFn(dart_rti.findType("html|CssClassSet(html|Element)")))(),
    CssClassSetImplTovoid: () => (T$6.CssClassSetImplTovoid = dart.constFn(dart_rti.findType("~(html_common|CssClassSetImpl)")))(),
    boolAndCssClassSetImplTobool: () => (T$6.boolAndCssClassSetImplTobool = dart.constFn(dart_rti.findType("core|bool(core|bool,html_common|CssClassSetImpl)")))(),
    SetOfStringTobool: () => (T$6.SetOfStringTobool = dart.constFn(dart_rti.findType("core|bool(core|Set<core|String>)")))(),
    SetOfStringTovoid: () => (T$6.SetOfStringTovoid = dart.constFn(dart_rti.findType("~(core|Set<core|String>)")))(),
    SetOfString: () => (T$6.SetOfString = dart.constFn(dart_rti.findType("core|Set<core|String>")))(),
    IterableOfStringAndboolNTovoid: () => (T$6.IterableOfStringAndboolNTovoid = dart.constFn(dart_rti.findType("~(core|Iterable<core|String>[core|bool?])")))(),
    VoidToSetOfString: () => (T$6.VoidToSetOfString = dart.constFn(dart_rti.findType("core|Set<core|String>()")))(),
    FnTodynamic: () => (T$6.FnTodynamic = dart.constFn(dart_rti.findType("@(@(core|Set<core|String>))")))(),
    IterableOfElementTo_MultiElementCssClassSet: () => (T$6.IterableOfElementTo_MultiElementCssClassSet = dart.constFn(dart_rti.findType("html|_MultiElementCssClassSet(core|Iterable<html|Element>)")))(),
    ListOfCssClassSetImpl: () => (T$6.ListOfCssClassSetImpl = dart.constFn(dart_rti.findType("core|List<html_common|CssClassSetImpl>")))(),
    _ElementCssClassSet: () => (T$6._ElementCssClassSet = dart.constFn(dart_rti.findType("html|_ElementCssClassSet")))(),
    ElementAndStringTobool: () => (T$6.ElementAndStringTobool = dart.constFn(dart_rti.findType("core|bool(html|Element,core|String)")))(),
    ElementAndStringAndboolNTobool: () => (T$6.ElementAndStringAndboolNTobool = dart.constFn(dart_rti.findType("core|bool(html|Element,core|String,core|bool?)")))(),
    ElementAndIterableOfStringTovoid: () => (T$6.ElementAndIterableOfStringTovoid = dart.constFn(dart_rti.findType("~(html|Element,core|Iterable<core|String>)")))(),
    ElementAndIterableOfObjectNTovoid: () => (T$6.ElementAndIterableOfObjectNTovoid = dart.constFn(dart_rti.findType("~(html|Element,core|Iterable<core|Object?>)")))(),
    ElementAndFnAndboolTovoid: () => (T$6.ElementAndFnAndboolTovoid = dart.constFn(dart_rti.findType("~(html|Element,core|bool(core|String),core|bool)")))(),
    ElementToDomTokenList: () => (T$6.ElementToDomTokenList = dart.constFn(dart_rti.findType("html|DomTokenList(html|Element)")))(),
    DomTokenListToint: () => (T$6.DomTokenListToint = dart.constFn(dart_rti.findType("core|int(html|DomTokenList)")))(),
    DomTokenListAndStringTobool: () => (T$6.DomTokenListAndStringTobool = dart.constFn(dart_rti.findType("core|bool(html|DomTokenList,core|String)")))(),
    DomTokenListAndStringTovoid: () => (T$6.DomTokenListAndStringTovoid = dart.constFn(dart_rti.findType("~(html|DomTokenList,core|String)")))(),
    DomTokenListAndStringAndboolNTobool: () => (T$6.DomTokenListAndStringAndboolNTobool = dart.constFn(dart_rti.findType("core|bool(html|DomTokenList,core|String,core|bool?)")))(),
    EventToNdynamic: () => (T$6.EventToNdynamic = dart.constFn(dart_rti.findType("@(html|Event)?")))(),
    _CustomKeyEventStreamImpl: () => (T$6._CustomKeyEventStreamImpl = dart.constFn(dart_rti.findType("html|_CustomKeyEventStreamImpl")))(),
    KeyEvent: () => (T$6.KeyEvent = dart.constFn(dart_rti.findType("html|KeyEvent")))(),
    ElementAndStringAndString__Tobool: () => (T$6.ElementAndStringAndString__Tobool = dart.constFn(dart_rti.findType("core|bool(html|Element,core|String,core|String,html|_Html5NodeValidator)")))(),
    ElementAndStringAndStringTobool: () => (T$6.ElementAndStringAndStringTobool = dart.constFn(dart_rti.findType("core|bool(html|Element,core|String,core|String)")))(),
    UriPolicy: () => (T$6.UriPolicy = dart.constFn(dart_rti.findType("html|UriPolicy")))(),
    MapOfString$Function: () => (T$6.MapOfString$Function = dart.constFn(dart_rti.findType("core|Map<core|String,core|Function>")))(),
    _KeyboardEventHandler: () => (T$6._KeyboardEventHandler = dart.constFn(dart_rti.findType("html|_KeyboardEventHandler")))(),
    KeyEventTobool: () => (T$6.KeyEventTobool = dart.constFn(dart_rti.findType("core|bool(html|KeyEvent)")))(),
    EventTargetN__ToCustomStreamOfKeyEvent: () => (T$6.EventTargetN__ToCustomStreamOfKeyEvent = dart.constFn(dart_rti.findType("html|CustomStream<html|KeyEvent>(html|EventTarget?{useCapture:core|bool})")))(),
    KeyboardEventToint: () => (T$6.KeyboardEventToint = dart.constFn(dart_rti.findType("core|int(html|KeyboardEvent)")))(),
    KeyboardEventTovoid: () => (T$6.KeyboardEventTovoid = dart.constFn(dart_rti.findType("~(html|KeyboardEvent)")))(),
    ListOfKeyEvent: () => (T$6.ListOfKeyEvent = dart.constFn(dart_rti.findType("core|List<html|KeyEvent>")))(),
    MapOfString$int: () => (T$6.MapOfString$int = dart.constFn(dart_rti.findType("core|Map<core|String,core|int>")))(),
    EventTargetToCustomStreamOfKeyEvent: () => (T$6.EventTargetToCustomStreamOfKeyEvent = dart.constFn(dart_rti.findType("html|CustomStream<html|KeyEvent>(html|EventTarget)")))(),
    NodeValidator: () => (T$6.NodeValidator = dart.constFn(dart_rti.findType("html|NodeValidator")))(),
    NodeValidatorTobool: () => (T$6.NodeValidatorTobool = dart.constFn(dart_rti.findType("core|bool(html|NodeValidator)")))(),
    UriPolicyNTovoid: () => (T$6.UriPolicyNTovoid = dart.constFn(dart_rti.findType("~([html|UriPolicy?])")))(),
    __Tovoid$5: () => (T$6.__Tovoid$5 = dart.constFn(dart_rti.findType("~({tagName:core|String?})")))()
  };
  var T$7 = {
    __Tovoid$6: () => (T$7.__Tovoid$6 = dart.constFn(dart_rti.findType("~({uriPolicy:html|UriPolicy?})")))(),
    String__Tovoid$7: () => (T$7.String__Tovoid$7 = dart.constFn(dart_rti.findType("~(core|String{attributes:core|Iterable<core|String>?,uriAttributes:core|Iterable<core|String>?,uriPolicy:html|UriPolicy?})")))(),
    StringAndString__Tovoid$2: () => (T$7.StringAndString__Tovoid$2 = dart.constFn(dart_rti.findType("~(core|String,core|String{attributes:core|Iterable<core|String>?,uriAttributes:core|Iterable<core|String>?,uriPolicy:html|UriPolicy?})")))(),
    NodeValidatorTovoid: () => (T$7.NodeValidatorTovoid = dart.constFn(dart_rti.findType("~(html|NodeValidator)")))(),
    ListOfNodeValidator: () => (T$7.ListOfNodeValidator = dart.constFn(dart_rti.findType("core|List<html|NodeValidator>")))(),
    UriPolicyTo_SimpleNodeValidator: () => (T$7.UriPolicyTo_SimpleNodeValidator = dart.constFn(dart_rti.findType("html|_SimpleNodeValidator(html|UriPolicy)")))(),
    VoidTo_SimpleNodeValidator: () => (T$7.VoidTo_SimpleNodeValidator = dart.constFn(dart_rti.findType("html|_SimpleNodeValidator()")))(),
    UriPolicyN: () => (T$7.UriPolicyN = dart.constFn(dart_rti.findType("html|UriPolicy?")))(),
    ScriptElement: () => (T$7.ScriptElement = dart.constFn(dart_rti.findType("svg|ScriptElement")))(),
    SvgElement: () => (T$7.SvgElement = dart.constFn(dart_rti.findType("svg|SvgElement")))(),
    NodeAndNodeToint: () => (T$7.NodeAndNodeToint = dart.constFn(dart_rti.findType("core|int(html|Node,html|Node)")))(),
    IteratorOfNode: () => (T$7.IteratorOfNode = dart.constFn(dart_rti.findType("core|Iterator<html|Node>")))(),
    StringAndFnAndboolToHttpRequest: () => (T$7.StringAndFnAndboolToHttpRequest = dart.constFn(dart_rti.findType("html|HttpRequest(core|String,@(html|HttpRequest),core|bool)")))(),
    boolNAndObjectNTovoid: () => (T$7.boolNAndObjectNTovoid = dart.constFn(dart_rti.findType("~([core|bool?,core|Object?])")))(),
    ObjectNAndObjectNTovoid$2: () => (T$7.ObjectNAndObjectNTovoid$2 = dart.constFn(dart_rti.findType("~([core|Object?,core|Object?])")))(),
    ObjectNAndListNOfStringTovoid: () => (T$7.ObjectNAndListNOfStringTovoid = dart.constFn(dart_rti.findType("~([core|Object?,core|List<core|String>?])")))(),
    StringNAndObjectNTovoid: () => (T$7.StringNAndObjectNTovoid = dart.constFn(dart_rti.findType("~([core|String?,core|Object?])")))(),
    HtmlElement: () => (T$7.HtmlElement = dart.constFn(dart_rti.findType("html|HtmlElement")))(),
    WindowBase: () => (T$7.WindowBase = dart.constFn(dart_rti.findType("html|WindowBase")))(),
    HistoryBase: () => (T$7.HistoryBase = dart.constFn(dart_rti.findType("html|HistoryBase")))(),
    dynamicAndStringAndListNTovoid: () => (T$7.dynamicAndStringAndListNTovoid = dart.constFn(dart_rti.findType("~(@,core|String[core|List<@>?])")))(),
    StringNAndFnAndboolNTovoid: () => (T$7.StringNAndFnAndboolNTovoid = dart.constFn(dart_rti.findType("~(core|String?,@(html|Event)?[core|bool?])")))(),
    dynamicToLocationBase: () => (T$7.dynamicToLocationBase = dart.constFn(dart_rti.findType("html|LocationBase(@)")))(),
    dynamicToHistoryBase: () => (T$7.dynamicToHistoryBase = dart.constFn(dart_rti.findType("html|HistoryBase(@)")))(),
    String__ToKeyEvent: () => (T$7.String__ToKeyEvent = dart.constFn(dart_rti.findType("html|KeyEvent(core|String{altKey:core|bool,canBubble:core|bool,cancelable:core|bool,charCode:core|int,ctrlKey:core|bool,currentTarget:html|EventTarget?,keyCode:core|int,location:core|int,metaKey:core|bool,shiftKey:core|bool,view:html|Window?})")))(),
    EventStreamProviderOfKeyEvent: () => (T$7.EventStreamProviderOfKeyEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<html|KeyEvent>")))(),
    __ToNodeValidator: () => (T$7.__ToNodeValidator = dart.constFn(dart_rti.findType("html|NodeValidator({uriPolicy:html|UriPolicy?})")))(),
    NodeValidatorToNodeValidator: () => (T$7.NodeValidatorToNodeValidator = dart.constFn(dart_rti.findType("html|NodeValidator(html|NodeValidator)")))(),
    NodeValidatorToNodeTreeSanitizer: () => (T$7.NodeValidatorToNodeTreeSanitizer = dart.constFn(dart_rti.findType("html|NodeTreeSanitizer(html|NodeValidator)")))(),
    VoidToUriPolicy: () => (T$7.VoidToUriPolicy = dart.constFn(dart_rti.findType("html|UriPolicy()")))(),
    AnchorElement: () => (T$7.AnchorElement = dart.constFn(dart_rti.findType("html|AnchorElement")))(),
    NodeAndNodeNTovoid: () => (T$7.NodeAndNodeNTovoid = dart.constFn(dart_rti.findType("~(html|Node,html|Node?)")))(),
    dynamicAndNodeNTovoid: () => (T$7.dynamicAndNodeNTovoid = dart.constFn(dart_rti.findType("~(@,html|Node?)")))(),
    ElementAndNodeNAndbool__Tovoid: () => (T$7.ElementAndNodeNAndbool__Tovoid = dart.constFn(dart_rti.findType("~(html|Element,html|Node?,core|bool,core|String,core|String,core|Map<@,@>,core|String?)")))(),
    MapNOfString$dynamic: () => (T$7.MapNOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>?")))(),
    dynamicToMapNOfString$dynamic: () => (T$7.dynamicToMapNOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>?(@)")))(),
    _DOMWindowCrossFrame: () => (T$7._DOMWindowCrossFrame = dart.constFn(dart_rti.findType("html|_DOMWindowCrossFrame")))(),
    FileList: () => (T$7.FileList = dart.constFn(dart_rti.findType("html|FileList")))(),
    ListAndintToList: () => (T$7.ListAndintToList = dart.constFn(dart_rti.findType("core|List<@>(core|List<@>,core|int)")))(),
    dynamic__Todynamic: () => (T$7.dynamic__Todynamic = dart.constFn(dart_rti.findType("@(@{mustCopy:@})")))(),
    NativeTypedData: () => (T$7.NativeTypedData = dart.constFn(dart_rti.findType("_native_typed_data|NativeTypedData")))(),
    SharedArrayBuffer: () => (T$7.SharedArrayBuffer = dart.constFn(dart_rti.findType("html|SharedArrayBuffer")))(),
    VoidToJSObject: () => (T$7.VoidToJSObject = dart.constFn(dart_rti.findType("_interceptors|JSObject()")))(),
    dynamicAndFnTovoid$1: () => (T$7.dynamicAndFnTovoid$1 = dart.constFn(dart_rti.findType("~(@,@(@,@))")))(),
    FilteredElementList: () => (T$7.FilteredElementList = dart.constFn(dart_rti.findType("html_common|FilteredElementList")))(),
    NodeToElement: () => (T$7.NodeToElement = dart.constFn(dart_rti.findType("html|Element(html|Node)")))(),
    ListAndObjectAndint__Toint: () => (T$7.ListAndObjectAndint__Toint = dart.constFn(dart_rti.findType("core|int(core|List<@>,core|Object,core|int,core|int)")))(),
    ListAndObjectAndintToint: () => (T$7.ListAndObjectAndintToint = dart.constFn(dart_rti.findType("core|int(core|List<@>,core|Object,core|int)")))(),
    ListAndintAndint__ToList: () => (T$7.ListAndintAndint__ToList = dart.constFn(dart_rti.findType("core|List<@>(core|List<@>,core|int,core|int,core|List<@>)")))(),
    _TypedImageData: () => (T$7._TypedImageData = dart.constFn(dart_rti.findType("html_common|_TypedImageData")))(),
    StringToSvgElement: () => (T$7.StringToSvgElement = dart.constFn(dart_rti.findType("svg|SvgElement(core|String)")))(),
    AElement: () => (T$7.AElement = dart.constFn(dart_rti.findType("svg|AElement")))(),
    String__ToSvgElement: () => (T$7.String__ToSvgElement = dart.constFn(dart_rti.findType("svg|SvgElement(core|String{treeSanitizer:html|NodeTreeSanitizer?,validator:html|NodeValidator?})")))(),
    VoidToSvgElement: () => (T$7.VoidToSvgElement = dart.constFn(dart_rti.findType("svg|SvgElement()")))(),
    AnimatedString: () => (T$7.AnimatedString = dart.constFn(dart_rti.findType("svg|AnimatedString")))(),
    SvgElementN: () => (T$7.SvgElementN = dart.constFn(dart_rti.findType("svg|SvgElement?")))(),
    VoidToGraphicsElement: () => (T$7.VoidToGraphicsElement = dart.constFn(dart_rti.findType("svg|GraphicsElement()")))(),
    AnimatedTransformListN: () => (T$7.AnimatedTransformListN = dart.constFn(dart_rti.findType("svg|AnimatedTransformList?")))(),
    VoidToRect: () => (T$7.VoidToRect = dart.constFn(dart_rti.findType("svg|Rect()")))(),
    VoidToMatrix: () => (T$7.VoidToMatrix = dart.constFn(dart_rti.findType("svg|Matrix()")))(),
    StringListN: () => (T$7.StringListN = dart.constFn(dart_rti.findType("svg|StringList?")))(),
    VoidToAElement: () => (T$7.VoidToAElement = dart.constFn(dart_rti.findType("svg|AElement()")))(),
    AnimatedStringN: () => (T$7.AnimatedStringN = dart.constFn(dart_rti.findType("svg|AnimatedString?")))(),
    VoidToAngle: () => (T$7.VoidToAngle = dart.constFn(dart_rti.findType("svg|Angle()")))(),
    intAndnumTovoid: () => (T$7.intAndnumTovoid = dart.constFn(dart_rti.findType("~(core|int,core|num)")))(),
    AnimateElement: () => (T$7.AnimateElement = dart.constFn(dart_rti.findType("svg|AnimateElement")))(),
    AnimationElement: () => (T$7.AnimationElement = dart.constFn(dart_rti.findType("svg|AnimationElement")))(),
    VoidToAnimationElement: () => (T$7.VoidToAnimationElement = dart.constFn(dart_rti.findType("svg|AnimationElement()")))(),
    VoidToAnimateElement: () => (T$7.VoidToAnimateElement = dart.constFn(dart_rti.findType("svg|AnimateElement()")))(),
    AnimateMotionElement: () => (T$7.AnimateMotionElement = dart.constFn(dart_rti.findType("svg|AnimateMotionElement")))(),
    VoidToAnimateMotionElement: () => (T$7.VoidToAnimateMotionElement = dart.constFn(dart_rti.findType("svg|AnimateMotionElement()")))(),
    AnimateTransformElement: () => (T$7.AnimateTransformElement = dart.constFn(dart_rti.findType("svg|AnimateTransformElement")))(),
    VoidToAnimateTransformElement: () => (T$7.VoidToAnimateTransformElement = dart.constFn(dart_rti.findType("svg|AnimateTransformElement()")))(),
    VoidToAnimatedAngle: () => (T$7.VoidToAnimatedAngle = dart.constFn(dart_rti.findType("svg|AnimatedAngle()")))(),
    AngleN: () => (T$7.AngleN = dart.constFn(dart_rti.findType("svg|Angle?")))(),
    VoidToAnimatedBoolean: () => (T$7.VoidToAnimatedBoolean = dart.constFn(dart_rti.findType("svg|AnimatedBoolean()")))(),
    VoidToAnimatedEnumeration: () => (T$7.VoidToAnimatedEnumeration = dart.constFn(dart_rti.findType("svg|AnimatedEnumeration()")))(),
    VoidToAnimatedInteger: () => (T$7.VoidToAnimatedInteger = dart.constFn(dart_rti.findType("svg|AnimatedInteger()")))(),
    VoidToAnimatedLength: () => (T$7.VoidToAnimatedLength = dart.constFn(dart_rti.findType("svg|AnimatedLength()")))(),
    LengthN: () => (T$7.LengthN = dart.constFn(dart_rti.findType("svg|Length?")))(),
    VoidToAnimatedLengthList: () => (T$7.VoidToAnimatedLengthList = dart.constFn(dart_rti.findType("svg|AnimatedLengthList()")))(),
    LengthListN: () => (T$7.LengthListN = dart.constFn(dart_rti.findType("svg|LengthList?")))(),
    VoidToAnimatedNumber: () => (T$7.VoidToAnimatedNumber = dart.constFn(dart_rti.findType("svg|AnimatedNumber()")))(),
    VoidToAnimatedNumberList: () => (T$7.VoidToAnimatedNumberList = dart.constFn(dart_rti.findType("svg|AnimatedNumberList()")))(),
    NumberListN: () => (T$7.NumberListN = dart.constFn(dart_rti.findType("svg|NumberList?")))(),
    VoidToAnimatedPreserveAspectRatio: () => (T$7.VoidToAnimatedPreserveAspectRatio = dart.constFn(dart_rti.findType("svg|AnimatedPreserveAspectRatio()")))(),
    PreserveAspectRatioN: () => (T$7.PreserveAspectRatioN = dart.constFn(dart_rti.findType("svg|PreserveAspectRatio?")))(),
    VoidToAnimatedRect: () => (T$7.VoidToAnimatedRect = dart.constFn(dart_rti.findType("svg|AnimatedRect()")))(),
    RectN: () => (T$7.RectN = dart.constFn(dart_rti.findType("svg|Rect?")))(),
    VoidToAnimatedString: () => (T$7.VoidToAnimatedString = dart.constFn(dart_rti.findType("svg|AnimatedString()")))(),
    VoidToAnimatedTransformList: () => (T$7.VoidToAnimatedTransformList = dart.constFn(dart_rti.findType("svg|AnimatedTransformList()")))(),
    TransformListN: () => (T$7.TransformListN = dart.constFn(dart_rti.findType("svg|TransformList?")))(),
    CircleElement: () => (T$7.CircleElement = dart.constFn(dart_rti.findType("svg|CircleElement")))(),
    VoidToGeometryElement: () => (T$7.VoidToGeometryElement = dart.constFn(dart_rti.findType("svg|GeometryElement()")))(),
    AnimatedNumberN: () => (T$7.AnimatedNumberN = dart.constFn(dart_rti.findType("svg|AnimatedNumber?")))(),
    numToPoint: () => (T$7.numToPoint = dart.constFn(dart_rti.findType("svg|Point(core|num)")))(),
    PointTobool: () => (T$7.PointTobool = dart.constFn(dart_rti.findType("core|bool(svg|Point)")))(),
    VoidToCircleElement: () => (T$7.VoidToCircleElement = dart.constFn(dart_rti.findType("svg|CircleElement()")))(),
    AnimatedLengthN: () => (T$7.AnimatedLengthN = dart.constFn(dart_rti.findType("svg|AnimatedLength?")))(),
    ClipPathElement: () => (T$7.ClipPathElement = dart.constFn(dart_rti.findType("svg|ClipPathElement")))(),
    VoidToClipPathElement: () => (T$7.VoidToClipPathElement = dart.constFn(dart_rti.findType("svg|ClipPathElement()")))(),
    AnimatedEnumerationN: () => (T$7.AnimatedEnumerationN = dart.constFn(dart_rti.findType("svg|AnimatedEnumeration?")))(),
    DefsElement: () => (T$7.DefsElement = dart.constFn(dart_rti.findType("svg|DefsElement")))(),
    VoidToDefsElement: () => (T$7.VoidToDefsElement = dart.constFn(dart_rti.findType("svg|DefsElement()")))(),
    DescElement: () => (T$7.DescElement = dart.constFn(dart_rti.findType("svg|DescElement")))(),
    VoidToDescElement: () => (T$7.VoidToDescElement = dart.constFn(dart_rti.findType("svg|DescElement()")))(),
    VoidToDiscardElement: () => (T$7.VoidToDiscardElement = dart.constFn(dart_rti.findType("svg|DiscardElement()")))(),
    EllipseElement: () => (T$7.EllipseElement = dart.constFn(dart_rti.findType("svg|EllipseElement")))(),
    VoidToEllipseElement: () => (T$7.VoidToEllipseElement = dart.constFn(dart_rti.findType("svg|EllipseElement()")))(),
    FEBlendElement: () => (T$7.FEBlendElement = dart.constFn(dart_rti.findType("svg|FEBlendElement")))(),
    VoidToFEBlendElement: () => (T$7.VoidToFEBlendElement = dart.constFn(dart_rti.findType("svg|FEBlendElement()")))(),
    FEColorMatrixElement: () => (T$7.FEColorMatrixElement = dart.constFn(dart_rti.findType("svg|FEColorMatrixElement")))(),
    VoidToFEColorMatrixElement: () => (T$7.VoidToFEColorMatrixElement = dart.constFn(dart_rti.findType("svg|FEColorMatrixElement()")))(),
    AnimatedNumberListN: () => (T$7.AnimatedNumberListN = dart.constFn(dart_rti.findType("svg|AnimatedNumberList?")))(),
    FEComponentTransferElement: () => (T$7.FEComponentTransferElement = dart.constFn(dart_rti.findType("svg|FEComponentTransferElement")))(),
    VoidToFEComponentTransferElement: () => (T$7.VoidToFEComponentTransferElement = dart.constFn(dart_rti.findType("svg|FEComponentTransferElement()")))(),
    VoidToFECompositeElement: () => (T$7.VoidToFECompositeElement = dart.constFn(dart_rti.findType("svg|FECompositeElement()")))(),
    FEConvolveMatrixElement: () => (T$7.FEConvolveMatrixElement = dart.constFn(dart_rti.findType("svg|FEConvolveMatrixElement")))(),
    VoidToFEConvolveMatrixElement: () => (T$7.VoidToFEConvolveMatrixElement = dart.constFn(dart_rti.findType("svg|FEConvolveMatrixElement()")))(),
    AnimatedIntegerN: () => (T$7.AnimatedIntegerN = dart.constFn(dart_rti.findType("svg|AnimatedInteger?")))(),
    AnimatedBooleanN: () => (T$7.AnimatedBooleanN = dart.constFn(dart_rti.findType("svg|AnimatedBoolean?")))(),
    FEDiffuseLightingElement: () => (T$7.FEDiffuseLightingElement = dart.constFn(dart_rti.findType("svg|FEDiffuseLightingElement")))(),
    VoidToFEDiffuseLightingElement: () => (T$7.VoidToFEDiffuseLightingElement = dart.constFn(dart_rti.findType("svg|FEDiffuseLightingElement()")))(),
    FEDisplacementMapElement: () => (T$7.FEDisplacementMapElement = dart.constFn(dart_rti.findType("svg|FEDisplacementMapElement")))(),
    VoidToFEDisplacementMapElement: () => (T$7.VoidToFEDisplacementMapElement = dart.constFn(dart_rti.findType("svg|FEDisplacementMapElement()")))(),
    FEDistantLightElement: () => (T$7.FEDistantLightElement = dart.constFn(dart_rti.findType("svg|FEDistantLightElement")))(),
    VoidToFEDistantLightElement: () => (T$7.VoidToFEDistantLightElement = dart.constFn(dart_rti.findType("svg|FEDistantLightElement()")))(),
    FEFloodElement: () => (T$7.FEFloodElement = dart.constFn(dart_rti.findType("svg|FEFloodElement")))(),
    VoidToFEFloodElement: () => (T$7.VoidToFEFloodElement = dart.constFn(dart_rti.findType("svg|FEFloodElement()")))(),
    FEFuncAElement: () => (T$7.FEFuncAElement = dart.constFn(dart_rti.findType("svg|FEFuncAElement")))(),
    VoidTo_SVGComponentTransferFunctionElement: () => (T$7.VoidTo_SVGComponentTransferFunctionElement = dart.constFn(dart_rti.findType("svg|_SVGComponentTransferFunctionElement()")))(),
    VoidToFEFuncAElement: () => (T$7.VoidToFEFuncAElement = dart.constFn(dart_rti.findType("svg|FEFuncAElement()")))(),
    FEFuncBElement: () => (T$7.FEFuncBElement = dart.constFn(dart_rti.findType("svg|FEFuncBElement")))(),
    VoidToFEFuncBElement: () => (T$7.VoidToFEFuncBElement = dart.constFn(dart_rti.findType("svg|FEFuncBElement()")))(),
    FEFuncGElement: () => (T$7.FEFuncGElement = dart.constFn(dart_rti.findType("svg|FEFuncGElement")))(),
    VoidToFEFuncGElement: () => (T$7.VoidToFEFuncGElement = dart.constFn(dart_rti.findType("svg|FEFuncGElement()")))(),
    FEFuncRElement: () => (T$7.FEFuncRElement = dart.constFn(dart_rti.findType("svg|FEFuncRElement")))(),
    VoidToFEFuncRElement: () => (T$7.VoidToFEFuncRElement = dart.constFn(dart_rti.findType("svg|FEFuncRElement()")))(),
    FEGaussianBlurElement: () => (T$7.FEGaussianBlurElement = dart.constFn(dart_rti.findType("svg|FEGaussianBlurElement")))(),
    VoidToFEGaussianBlurElement: () => (T$7.VoidToFEGaussianBlurElement = dart.constFn(dart_rti.findType("svg|FEGaussianBlurElement()")))(),
    FEImageElement: () => (T$7.FEImageElement = dart.constFn(dart_rti.findType("svg|FEImageElement")))(),
    VoidToFEImageElement: () => (T$7.VoidToFEImageElement = dart.constFn(dart_rti.findType("svg|FEImageElement()")))(),
    AnimatedPreserveAspectRatioN: () => (T$7.AnimatedPreserveAspectRatioN = dart.constFn(dart_rti.findType("svg|AnimatedPreserveAspectRatio?")))(),
    FEMergeElement: () => (T$7.FEMergeElement = dart.constFn(dart_rti.findType("svg|FEMergeElement")))(),
    VoidToFEMergeElement: () => (T$7.VoidToFEMergeElement = dart.constFn(dart_rti.findType("svg|FEMergeElement()")))(),
    FEMergeNodeElement: () => (T$7.FEMergeNodeElement = dart.constFn(dart_rti.findType("svg|FEMergeNodeElement")))(),
    VoidToFEMergeNodeElement: () => (T$7.VoidToFEMergeNodeElement = dart.constFn(dart_rti.findType("svg|FEMergeNodeElement()")))(),
    VoidToFEMorphologyElement: () => (T$7.VoidToFEMorphologyElement = dart.constFn(dart_rti.findType("svg|FEMorphologyElement()")))(),
    FEOffsetElement: () => (T$7.FEOffsetElement = dart.constFn(dart_rti.findType("svg|FEOffsetElement")))(),
    VoidToFEOffsetElement: () => (T$7.VoidToFEOffsetElement = dart.constFn(dart_rti.findType("svg|FEOffsetElement()")))(),
    FEPointLightElement: () => (T$7.FEPointLightElement = dart.constFn(dart_rti.findType("svg|FEPointLightElement")))(),
    VoidToFEPointLightElement: () => (T$7.VoidToFEPointLightElement = dart.constFn(dart_rti.findType("svg|FEPointLightElement()")))(),
    FESpecularLightingElement: () => (T$7.FESpecularLightingElement = dart.constFn(dart_rti.findType("svg|FESpecularLightingElement")))(),
    VoidToFESpecularLightingElement: () => (T$7.VoidToFESpecularLightingElement = dart.constFn(dart_rti.findType("svg|FESpecularLightingElement()")))(),
    FESpotLightElement: () => (T$7.FESpotLightElement = dart.constFn(dart_rti.findType("svg|FESpotLightElement")))(),
    VoidToFESpotLightElement: () => (T$7.VoidToFESpotLightElement = dart.constFn(dart_rti.findType("svg|FESpotLightElement()")))(),
    FETileElement: () => (T$7.FETileElement = dart.constFn(dart_rti.findType("svg|FETileElement")))(),
    VoidToFETileElement: () => (T$7.VoidToFETileElement = dart.constFn(dart_rti.findType("svg|FETileElement()")))(),
    FETurbulenceElement: () => (T$7.FETurbulenceElement = dart.constFn(dart_rti.findType("svg|FETurbulenceElement")))(),
    VoidToFETurbulenceElement: () => (T$7.VoidToFETurbulenceElement = dart.constFn(dart_rti.findType("svg|FETurbulenceElement()")))(),
    FilterElement: () => (T$7.FilterElement = dart.constFn(dart_rti.findType("svg|FilterElement")))(),
    VoidToFilterElement: () => (T$7.VoidToFilterElement = dart.constFn(dart_rti.findType("svg|FilterElement()")))(),
    VoidToFilterPrimitiveStandardAttributes: () => (T$7.VoidToFilterPrimitiveStandardAttributes = dart.constFn(dart_rti.findType("svg|FilterPrimitiveStandardAttributes()")))(),
    VoidToFitToViewBox: () => (T$7.VoidToFitToViewBox = dart.constFn(dart_rti.findType("svg|FitToViewBox()")))(),
    AnimatedRectN: () => (T$7.AnimatedRectN = dart.constFn(dart_rti.findType("svg|AnimatedRect?")))(),
    ForeignObjectElement: () => (T$7.ForeignObjectElement = dart.constFn(dart_rti.findType("svg|ForeignObjectElement")))(),
    VoidToForeignObjectElement: () => (T$7.VoidToForeignObjectElement = dart.constFn(dart_rti.findType("svg|ForeignObjectElement()")))(),
    GElement: () => (T$7.GElement = dart.constFn(dart_rti.findType("svg|GElement")))(),
    VoidToGElement: () => (T$7.VoidToGElement = dart.constFn(dart_rti.findType("svg|GElement()")))(),
    ImageElement: () => (T$7.ImageElement = dart.constFn(dart_rti.findType("svg|ImageElement")))(),
    VoidToImageElement$1: () => (T$7.VoidToImageElement$1 = dart.constFn(dart_rti.findType("svg|ImageElement()")))(),
    VoidToLength: () => (T$7.VoidToLength = dart.constFn(dart_rti.findType("svg|Length()")))(),
    Length: () => (T$7.Length = dart.constFn(dart_rti.findType("svg|Length")))(),
    VoidToLengthList: () => (T$7.VoidToLengthList = dart.constFn(dart_rti.findType("svg|LengthList()")))(),
    intToLength: () => (T$7.intToLength = dart.constFn(dart_rti.findType("svg|Length(core|int)")))(),
    intAndLengthTovoid: () => (T$7.intAndLengthTovoid = dart.constFn(dart_rti.findType("~(core|int,svg|Length)")))(),
    LengthToLength: () => (T$7.LengthToLength = dart.constFn(dart_rti.findType("svg|Length(svg|Length)")))(),
    LengthAndintToLength: () => (T$7.LengthAndintToLength = dart.constFn(dart_rti.findType("svg|Length(svg|Length,core|int)")))(),
    LineElement: () => (T$7.LineElement = dart.constFn(dart_rti.findType("svg|LineElement")))(),
    VoidToLineElement: () => (T$7.VoidToLineElement = dart.constFn(dart_rti.findType("svg|LineElement()")))(),
    LinearGradientElement: () => (T$7.LinearGradientElement = dart.constFn(dart_rti.findType("svg|LinearGradientElement")))(),
    VoidTo_GradientElement: () => (T$7.VoidTo_GradientElement = dart.constFn(dart_rti.findType("svg|_GradientElement()")))(),
    VoidToLinearGradientElement: () => (T$7.VoidToLinearGradientElement = dart.constFn(dart_rti.findType("svg|LinearGradientElement()")))(),
    MarkerElement: () => (T$7.MarkerElement = dart.constFn(dart_rti.findType("svg|MarkerElement")))(),
    VoidToMarkerElement: () => (T$7.VoidToMarkerElement = dart.constFn(dart_rti.findType("svg|MarkerElement()")))(),
    AnimatedLength: () => (T$7.AnimatedLength = dart.constFn(dart_rti.findType("svg|AnimatedLength")))(),
    AnimatedEnumeration: () => (T$7.AnimatedEnumeration = dart.constFn(dart_rti.findType("svg|AnimatedEnumeration")))(),
    AnimatedAngleN: () => (T$7.AnimatedAngleN = dart.constFn(dart_rti.findType("svg|AnimatedAngle?")))(),
    AngleTovoid: () => (T$7.AngleTovoid = dart.constFn(dart_rti.findType("~(svg|Angle)")))(),
    MaskElement: () => (T$7.MaskElement = dart.constFn(dart_rti.findType("svg|MaskElement")))(),
    VoidToMaskElement: () => (T$7.VoidToMaskElement = dart.constFn(dart_rti.findType("svg|MaskElement()")))(),
    MatrixToMatrix: () => (T$7.MatrixToMatrix = dart.constFn(dart_rti.findType("svg|Matrix(svg|Matrix)")))(),
    numToMatrix: () => (T$7.numToMatrix = dart.constFn(dart_rti.findType("svg|Matrix(core|num)")))(),
    numAndnumToMatrix: () => (T$7.numAndnumToMatrix = dart.constFn(dart_rti.findType("svg|Matrix(core|num,core|num)")))(),
    VoidToMetadataElement: () => (T$7.VoidToMetadataElement = dart.constFn(dart_rti.findType("svg|MetadataElement()")))(),
    VoidToNumber: () => (T$7.VoidToNumber = dart.constFn(dart_rti.findType("svg|Number()")))(),
    Number: () => (T$7.Number = dart.constFn(dart_rti.findType("svg|Number")))(),
    VoidToNumberList: () => (T$7.VoidToNumberList = dart.constFn(dart_rti.findType("svg|NumberList()")))(),
    intToNumber: () => (T$7.intToNumber = dart.constFn(dart_rti.findType("svg|Number(core|int)")))(),
    intAndNumberTovoid: () => (T$7.intAndNumberTovoid = dart.constFn(dart_rti.findType("~(core|int,svg|Number)")))(),
    NumberToNumber: () => (T$7.NumberToNumber = dart.constFn(dart_rti.findType("svg|Number(svg|Number)")))(),
    NumberAndintToNumber: () => (T$7.NumberAndintToNumber = dart.constFn(dart_rti.findType("svg|Number(svg|Number,core|int)")))(),
    PathElement: () => (T$7.PathElement = dart.constFn(dart_rti.findType("svg|PathElement")))(),
    VoidToPathElement: () => (T$7.VoidToPathElement = dart.constFn(dart_rti.findType("svg|PathElement()")))(),
    PatternElement: () => (T$7.PatternElement = dart.constFn(dart_rti.findType("svg|PatternElement")))(),
    VoidToPatternElement: () => (T$7.VoidToPatternElement = dart.constFn(dart_rti.findType("svg|PatternElement()")))(),
    VoidToPoint: () => (T$7.VoidToPoint = dart.constFn(dart_rti.findType("svg|Point()")))(),
    MatrixToPoint: () => (T$7.MatrixToPoint = dart.constFn(dart_rti.findType("svg|Point(svg|Matrix)")))(),
    VoidToPointList: () => (T$7.VoidToPointList = dart.constFn(dart_rti.findType("svg|PointList()")))(),
    intAndPointTovoid: () => (T$7.intAndPointTovoid = dart.constFn(dart_rti.findType("~(core|int,svg|Point)")))(),
    PointToPoint: () => (T$7.PointToPoint = dart.constFn(dart_rti.findType("svg|Point(svg|Point)")))(),
    intToPoint: () => (T$7.intToPoint = dart.constFn(dart_rti.findType("svg|Point(core|int)")))(),
    PointAndintToPoint: () => (T$7.PointAndintToPoint = dart.constFn(dart_rti.findType("svg|Point(svg|Point,core|int)")))(),
    PolygonElement: () => (T$7.PolygonElement = dart.constFn(dart_rti.findType("svg|PolygonElement")))(),
    VoidToPolygonElement: () => (T$7.VoidToPolygonElement = dart.constFn(dart_rti.findType("svg|PolygonElement()")))(),
    PointListN: () => (T$7.PointListN = dart.constFn(dart_rti.findType("svg|PointList?")))(),
    PointList: () => (T$7.PointList = dart.constFn(dart_rti.findType("svg|PointList")))(),
    PolylineElement: () => (T$7.PolylineElement = dart.constFn(dart_rti.findType("svg|PolylineElement")))(),
    VoidToPolylineElement: () => (T$7.VoidToPolylineElement = dart.constFn(dart_rti.findType("svg|PolylineElement()")))(),
    VoidToPreserveAspectRatio: () => (T$7.VoidToPreserveAspectRatio = dart.constFn(dart_rti.findType("svg|PreserveAspectRatio()")))(),
    RadialGradientElement: () => (T$7.RadialGradientElement = dart.constFn(dart_rti.findType("svg|RadialGradientElement")))(),
    VoidToRadialGradientElement: () => (T$7.VoidToRadialGradientElement = dart.constFn(dart_rti.findType("svg|RadialGradientElement()")))(),
    RectElement: () => (T$7.RectElement = dart.constFn(dart_rti.findType("svg|RectElement")))(),
    VoidToRectElement: () => (T$7.VoidToRectElement = dart.constFn(dart_rti.findType("svg|RectElement()")))(),
    VoidToScriptElement$1: () => (T$7.VoidToScriptElement$1 = dart.constFn(dart_rti.findType("svg|ScriptElement()")))(),
    SetElement: () => (T$7.SetElement = dart.constFn(dart_rti.findType("svg|SetElement")))(),
    VoidToSetElement: () => (T$7.VoidToSetElement = dart.constFn(dart_rti.findType("svg|SetElement()")))(),
    StopElement: () => (T$7.StopElement = dart.constFn(dart_rti.findType("svg|StopElement")))(),
    VoidToStopElement: () => (T$7.VoidToStopElement = dart.constFn(dart_rti.findType("svg|StopElement()")))(),
    AnimatedNumber: () => (T$7.AnimatedNumber = dart.constFn(dart_rti.findType("svg|AnimatedNumber")))(),
    VoidToStringList: () => (T$7.VoidToStringList = dart.constFn(dart_rti.findType("svg|StringList()")))(),
    StringAndintToString: () => (T$7.StringAndintToString = dart.constFn(dart_rti.findType("core|String(core|String,core|int)")))(),
    StyleElement: () => (T$7.StyleElement = dart.constFn(dart_rti.findType("svg|StyleElement")))(),
    VoidToStyleElement$1: () => (T$7.VoidToStyleElement$1 = dart.constFn(dart_rti.findType("svg|StyleElement()")))(),
    AttributeClassSet: () => (T$7.AttributeClassSet = dart.constFn(dart_rti.findType("svg|AttributeClassSet")))(),
    SetTovoid: () => (T$7.SetTovoid = dart.constFn(dart_rti.findType("~(core|Set<@>)")))(),
    SvgSvgElement: () => (T$7.SvgSvgElement = dart.constFn(dart_rti.findType("svg|SvgSvgElement")))(),
    VoidToSvgSvgElement: () => (T$7.VoidToSvgSvgElement = dart.constFn(dart_rti.findType("svg|SvgSvgElement()")))(),
    PointN: () => (T$7.PointN = dart.constFn(dart_rti.findType("svg|Point?")))(),
    SvgElementAndRectTobool: () => (T$7.SvgElementAndRectTobool = dart.constFn(dart_rti.findType("core|bool(svg|SvgElement,svg|Rect)")))(),
    VoidToTransform: () => (T$7.VoidToTransform = dart.constFn(dart_rti.findType("svg|Transform()")))(),
    MatrixToTransform: () => (T$7.MatrixToTransform = dart.constFn(dart_rti.findType("svg|Transform(svg|Matrix)")))(),
    StringToElement: () => (T$7.StringToElement = dart.constFn(dart_rti.findType("html|Element(core|String)")))(),
    RectAndSvgElementNToListOfNode: () => (T$7.RectAndSvgElementNToListOfNode = dart.constFn(dart_rti.findType("core|List<html|Node>(svg|Rect,svg|SvgElement?)")))(),
    SwitchElement: () => (T$7.SwitchElement = dart.constFn(dart_rti.findType("svg|SwitchElement")))(),
    VoidToSwitchElement: () => (T$7.VoidToSwitchElement = dart.constFn(dart_rti.findType("svg|SwitchElement()")))(),
    SymbolElement: () => (T$7.SymbolElement = dart.constFn(dart_rti.findType("svg|SymbolElement")))(),
    VoidToSymbolElement: () => (T$7.VoidToSymbolElement = dart.constFn(dart_rti.findType("svg|SymbolElement()")))(),
    TSpanElement: () => (T$7.TSpanElement = dart.constFn(dart_rti.findType("svg|TSpanElement")))(),
    VoidToTextContentElement: () => (T$7.VoidToTextContentElement = dart.constFn(dart_rti.findType("svg|TextContentElement()")))(),
    PointToint: () => (T$7.PointToint = dart.constFn(dart_rti.findType("core|int(svg|Point)")))(),
    intToRect: () => (T$7.intToRect = dart.constFn(dart_rti.findType("svg|Rect(core|int)")))(),
    intAndintTodouble: () => (T$7.intAndintTodouble = dart.constFn(dart_rti.findType("core|double(core|int,core|int)")))(),
    VoidToTextPositioningElement: () => (T$7.VoidToTextPositioningElement = dart.constFn(dart_rti.findType("svg|TextPositioningElement()")))(),
    AnimatedLengthListN: () => (T$7.AnimatedLengthListN = dart.constFn(dart_rti.findType("svg|AnimatedLengthList?")))(),
    VoidToTSpanElement: () => (T$7.VoidToTSpanElement = dart.constFn(dart_rti.findType("svg|TSpanElement()")))(),
    VoidToTests: () => (T$7.VoidToTests = dart.constFn(dart_rti.findType("svg|Tests()")))(),
    TextElement: () => (T$7.TextElement = dart.constFn(dart_rti.findType("svg|TextElement")))(),
    VoidToTextElement: () => (T$7.VoidToTextElement = dart.constFn(dart_rti.findType("svg|TextElement()")))(),
    VoidToTextPathElement: () => (T$7.VoidToTextPathElement = dart.constFn(dart_rti.findType("svg|TextPathElement()")))(),
    TitleElement: () => (T$7.TitleElement = dart.constFn(dart_rti.findType("svg|TitleElement")))(),
    VoidToTitleElement$1: () => (T$7.VoidToTitleElement$1 = dart.constFn(dart_rti.findType("svg|TitleElement()")))(),
    numAndnumAndnumTovoid: () => (T$7.numAndnumAndnumTovoid = dart.constFn(dart_rti.findType("~(core|num,core|num,core|num)")))(),
    Transform: () => (T$7.Transform = dart.constFn(dart_rti.findType("svg|Transform")))(),
    VoidToTransformList: () => (T$7.VoidToTransformList = dart.constFn(dart_rti.findType("svg|TransformList()")))(),
    intToTransform: () => (T$7.intToTransform = dart.constFn(dart_rti.findType("svg|Transform(core|int)")))(),
    intAndTransformTovoid: () => (T$7.intAndTransformTovoid = dart.constFn(dart_rti.findType("~(core|int,svg|Transform)")))(),
    TransformToTransform: () => (T$7.TransformToTransform = dart.constFn(dart_rti.findType("svg|Transform(svg|Transform)")))(),
    VoidToTransformN: () => (T$7.VoidToTransformN = dart.constFn(dart_rti.findType("svg|Transform?()")))(),
    TransformAndintToTransform: () => (T$7.TransformAndintToTransform = dart.constFn(dart_rti.findType("svg|Transform(svg|Transform,core|int)")))(),
    VoidToUnitTypes: () => (T$7.VoidToUnitTypes = dart.constFn(dart_rti.findType("svg|UnitTypes()")))(),
    VoidToUriReference: () => (T$7.VoidToUriReference = dart.constFn(dart_rti.findType("svg|UriReference()")))(),
    UseElement: () => (T$7.UseElement = dart.constFn(dart_rti.findType("svg|UseElement")))(),
    VoidToUseElement: () => (T$7.VoidToUseElement = dart.constFn(dart_rti.findType("svg|UseElement()")))(),
    ViewElement: () => (T$7.ViewElement = dart.constFn(dart_rti.findType("svg|ViewElement")))(),
    VoidToViewElement: () => (T$7.VoidToViewElement = dart.constFn(dart_rti.findType("svg|ViewElement()")))(),
    VoidToZoomAndPan: () => (T$7.VoidToZoomAndPan = dart.constFn(dart_rti.findType("svg|ZoomAndPan()")))(),
    VoidTo_SVGFEDropShadowElement: () => (T$7.VoidTo_SVGFEDropShadowElement = dart.constFn(dart_rti.findType("svg|_SVGFEDropShadowElement()")))(),
    _SVGMPathElement: () => (T$7._SVGMPathElement = dart.constFn(dart_rti.findType("svg|_SVGMPathElement")))(),
    VoidTo_SVGMPathElement: () => (T$7.VoidTo_SVGMPathElement = dart.constFn(dart_rti.findType("svg|_SVGMPathElement()")))(),
    VoidToAudioNode: () => (T$7.VoidToAudioNode = dart.constFn(dart_rti.findType("web_audio|AudioNode()")))(),
    BaseAudioContextN: () => (T$7.BaseAudioContextN = dart.constFn(dart_rti.findType("web_audio|BaseAudioContext?")))(),
    dynamicAndintNAndintNToAudioNodeN: () => (T$7.dynamicAndintNAndintNToAudioNodeN = dart.constFn(dart_rti.findType("web_audio|AudioNode?(@[core|int?,core|int?])")))(),
    dynamicAndintNAndintNTovoid: () => (T$7.dynamicAndintNAndintNTovoid = dart.constFn(dart_rti.findType("~([@,core|int?,core|int?])")))(),
    AudioNodeAndintAndintTovoid: () => (T$7.AudioNodeAndintAndintTovoid = dart.constFn(dart_rti.findType("~(web_audio|AudioNode[core|int,core|int])")))(),
    AudioParamAndintTovoid: () => (T$7.AudioParamAndintTovoid = dart.constFn(dart_rti.findType("~(web_audio|AudioParam[core|int])")))(),
    VoidToAnalyserNode: () => (T$7.VoidToAnalyserNode = dart.constFn(dart_rti.findType("web_audio|AnalyserNode()")))(),
    BaseAudioContextAndMapNToAnalyserNode: () => (T$7.BaseAudioContextAndMapNToAnalyserNode = dart.constFn(dart_rti.findType("web_audio|AnalyserNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToAnalyserNode: () => (T$7.dynamicAnddynamicToAnalyserNode = dart.constFn(dart_rti.findType("web_audio|AnalyserNode(@,@)")))(),
    dynamicToAnalyserNode: () => (T$7.dynamicToAnalyserNode = dart.constFn(dart_rti.findType("web_audio|AnalyserNode(@)")))(),
    Uint8ListTovoid: () => (T$7.Uint8ListTovoid = dart.constFn(dart_rti.findType("~(typed_data|Uint8List)")))(),
    Float32ListTovoid: () => (T$7.Float32ListTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List)")))(),
    VoidToAudioBuffer: () => (T$7.VoidToAudioBuffer = dart.constFn(dart_rti.findType("web_audio|AudioBuffer()")))(),
    MapToAudioBuffer: () => (T$7.MapToAudioBuffer = dart.constFn(dart_rti.findType("web_audio|AudioBuffer(core|Map<@,@>)")))(),
    dynamicToAudioBuffer: () => (T$7.dynamicToAudioBuffer = dart.constFn(dart_rti.findType("web_audio|AudioBuffer(@)")))(),
    Float32ListAndintAndintNTovoid: () => (T$7.Float32ListAndintAndintNTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,core|int[core|int?])")))(),
    VoidToAudioScheduledSourceNode: () => (T$7.VoidToAudioScheduledSourceNode = dart.constFn(dart_rti.findType("web_audio|AudioScheduledSourceNode()")))(),
    numNTovoid: () => (T$7.numNTovoid = dart.constFn(dart_rti.findType("~([core|num?])")))(),
    VoidToAudioBufferSourceNode: () => (T$7.VoidToAudioBufferSourceNode = dart.constFn(dart_rti.findType("web_audio|AudioBufferSourceNode()")))(),
    BaseAudioContextAndMapNToAudioBufferSourceNode: () => (T$7.BaseAudioContextAndMapNToAudioBufferSourceNode = dart.constFn(dart_rti.findType("web_audio|AudioBufferSourceNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToAudioBufferSourceNode: () => (T$7.dynamicAnddynamicToAudioBufferSourceNode = dart.constFn(dart_rti.findType("web_audio|AudioBufferSourceNode(@,@)")))(),
    dynamicToAudioBufferSourceNode: () => (T$7.dynamicToAudioBufferSourceNode = dart.constFn(dart_rti.findType("web_audio|AudioBufferSourceNode(@)")))(),
    AudioBufferN: () => (T$7.AudioBufferN = dart.constFn(dart_rti.findType("web_audio|AudioBuffer?")))(),
    AudioParamN: () => (T$7.AudioParamN = dart.constFn(dart_rti.findType("web_audio|AudioParam?")))(),
    numNAndnumNAndnumNTovoid: () => (T$7.numNAndnumNAndnumNTovoid = dart.constFn(dart_rti.findType("~([core|num?,core|num?,core|num?])")))(),
    AudioBufferTovoid: () => (T$7.AudioBufferTovoid = dart.constFn(dart_rti.findType("~(web_audio|AudioBuffer)")))(),
    DomExceptionNTovoid: () => (T$7.DomExceptionNTovoid = dart.constFn(dart_rti.findType("~(html|DomException?)")))(),
    AudioBuffer: () => (T$7.AudioBuffer = dart.constFn(dart_rti.findType("web_audio|AudioBuffer")))(),
    DomException: () => (T$7.DomException = dart.constFn(dart_rti.findType("html|DomException")))(),
    dynamicToNever: () => (T$7.dynamicToNever = dart.constFn(dart_rti.findType("0&(@)")))(),
    ObjectToAudioBuffer: () => (T$7.ObjectToAudioBuffer = dart.constFn(dart_rti.findType("web_audio|AudioBuffer(core|Object)")))(),
    VoidToBaseAudioContext: () => (T$7.VoidToBaseAudioContext = dart.constFn(dart_rti.findType("web_audio|BaseAudioContext()")))(),
    AudioDestinationNodeN: () => (T$7.AudioDestinationNodeN = dart.constFn(dart_rti.findType("web_audio|AudioDestinationNode?")))(),
    AudioListenerN: () => (T$7.AudioListenerN = dart.constFn(dart_rti.findType("web_audio|AudioListener?")))(),
    VoidToBiquadFilterNode: () => (T$7.VoidToBiquadFilterNode = dart.constFn(dart_rti.findType("web_audio|BiquadFilterNode()")))(),
    intAndintAndnumToAudioBuffer: () => (T$7.intAndintAndnumToAudioBuffer = dart.constFn(dart_rti.findType("web_audio|AudioBuffer(core|int,core|int,core|num)")))(),
    intNToChannelMergerNode: () => (T$7.intNToChannelMergerNode = dart.constFn(dart_rti.findType("web_audio|ChannelMergerNode([core|int?])")))(),
    intNToChannelSplitterNode: () => (T$7.intNToChannelSplitterNode = dart.constFn(dart_rti.findType("web_audio|ChannelSplitterNode([core|int?])")))(),
    VoidToConstantSourceNode: () => (T$7.VoidToConstantSourceNode = dart.constFn(dart_rti.findType("web_audio|ConstantSourceNode()")))(),
    VoidToConvolverNode: () => (T$7.VoidToConvolverNode = dart.constFn(dart_rti.findType("web_audio|ConvolverNode()")))(),
    numNToDelayNode: () => (T$7.numNToDelayNode = dart.constFn(dart_rti.findType("web_audio|DelayNode([core|num?])")))(),
    VoidToDynamicsCompressorNode: () => (T$7.VoidToDynamicsCompressorNode = dart.constFn(dart_rti.findType("web_audio|DynamicsCompressorNode()")))(),
    VoidToGainNode: () => (T$7.VoidToGainNode = dart.constFn(dart_rti.findType("web_audio|GainNode()")))(),
    ListOfnumAndListOfnumToIirFilterNode: () => (T$7.ListOfnumAndListOfnumToIirFilterNode = dart.constFn(dart_rti.findType("web_audio|IirFilterNode(core|List<core|num>,core|List<core|num>)")))(),
    MediaElementToMediaElementAudioSourceNode: () => (T$7.MediaElementToMediaElementAudioSourceNode = dart.constFn(dart_rti.findType("web_audio|MediaElementAudioSourceNode(html|MediaElement)")))(),
    VoidToMediaStreamAudioDestinationNode: () => (T$7.VoidToMediaStreamAudioDestinationNode = dart.constFn(dart_rti.findType("web_audio|MediaStreamAudioDestinationNode()")))(),
    MediaStreamToMediaStreamAudioSourceNode: () => (T$7.MediaStreamToMediaStreamAudioSourceNode = dart.constFn(dart_rti.findType("web_audio|MediaStreamAudioSourceNode(html|MediaStream)")))(),
    VoidToOscillatorNode: () => (T$7.VoidToOscillatorNode = dart.constFn(dart_rti.findType("web_audio|OscillatorNode()")))(),
    VoidToPannerNode: () => (T$7.VoidToPannerNode = dart.constFn(dart_rti.findType("web_audio|PannerNode()")))(),
    ListOfnumAndListOfnumAndMapNToPeriodicWave: () => (T$7.ListOfnumAndListOfnumAndMapNToPeriodicWave = dart.constFn(dart_rti.findType("web_audio|PeriodicWave(core|List<core|num>,core|List<core|num>[core|Map<@,@>?])")))(),
    ListOfnumAndListOfnumAnddynamicToPeriodicWave: () => (T$7.ListOfnumAndListOfnumAnddynamicToPeriodicWave = dart.constFn(dart_rti.findType("web_audio|PeriodicWave(core|List<core|num>,core|List<core|num>,@)")))(),
    ListOfnumAndListOfnumToPeriodicWave: () => (T$7.ListOfnumAndListOfnumToPeriodicWave = dart.constFn(dart_rti.findType("web_audio|PeriodicWave(core|List<core|num>,core|List<core|num>)")))(),
    intNAndintNAndintNToScriptProcessorNode: () => (T$7.intNAndintNAndintNToScriptProcessorNode = dart.constFn(dart_rti.findType("web_audio|ScriptProcessorNode([core|int?,core|int?,core|int?])")))(),
    VoidToStereoPannerNode: () => (T$7.VoidToStereoPannerNode = dart.constFn(dart_rti.findType("web_audio|StereoPannerNode()")))(),
    VoidToWaveShaperNode: () => (T$7.VoidToWaveShaperNode = dart.constFn(dart_rti.findType("web_audio|WaveShaperNode()")))(),
    ByteBufferAndFnAndFnToFutureOfAudioBuffer: () => (T$7.ByteBufferAndFnAndFnToFutureOfAudioBuffer = dart.constFn(dart_rti.findType("async|Future<web_audio|AudioBuffer>(typed_data|ByteBuffer[~(web_audio|AudioBuffer)?,~(html|DomException)?])")))(),
    VoidToAudioContext: () => (T$7.VoidToAudioContext = dart.constFn(dart_rti.findType("web_audio|AudioContext()")))(),
    VoidToAudioDestinationNode: () => (T$7.VoidToAudioDestinationNode = dart.constFn(dart_rti.findType("web_audio|AudioDestinationNode()")))(),
    VoidToAudioListener: () => (T$7.VoidToAudioListener = dart.constFn(dart_rti.findType("web_audio|AudioListener()")))(),
    VoidToAudioParam: () => (T$7.VoidToAudioParam = dart.constFn(dart_rti.findType("web_audio|AudioParam()")))(),
    numToAudioParam: () => (T$7.numToAudioParam = dart.constFn(dart_rti.findType("web_audio|AudioParam(core|num)")))(),
    numAndnumToAudioParam: () => (T$7.numAndnumToAudioParam = dart.constFn(dart_rti.findType("web_audio|AudioParam(core|num,core|num)")))(),
    numAndnumAndnumToAudioParam: () => (T$7.numAndnumAndnumToAudioParam = dart.constFn(dart_rti.findType("web_audio|AudioParam(core|num,core|num,core|num)")))(),
    ListOfnumAndnumAndnumToAudioParam: () => (T$7.ListOfnumAndnumAndnumToAudioParam = dart.constFn(dart_rti.findType("web_audio|AudioParam(core|List<core|num>,core|num,core|num)")))(),
    VoidToAudioParamMap: () => (T$7.VoidToAudioParamMap = dart.constFn(dart_rti.findType("web_audio|AudioParamMap()")))(),
    VoidToAudioProcessingEvent: () => (T$7.VoidToAudioProcessingEvent = dart.constFn(dart_rti.findType("web_audio|AudioProcessingEvent()")))(),
    StringAndMapToAudioProcessingEvent: () => (T$7.StringAndMapToAudioProcessingEvent = dart.constFn(dart_rti.findType("web_audio|AudioProcessingEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToAudioProcessingEvent: () => (T$7.dynamicAnddynamicToAudioProcessingEvent = dart.constFn(dart_rti.findType("web_audio|AudioProcessingEvent(@,@)")))(),
    VoidToAudioTrack: () => (T$7.VoidToAudioTrack = dart.constFn(dart_rti.findType("web_audio|AudioTrack()")))(),
    VoidToAudioTrackList: () => (T$7.VoidToAudioTrackList = dart.constFn(dart_rti.findType("web_audio|AudioTrackList()")))(),
    intToAudioTrack: () => (T$7.intToAudioTrack = dart.constFn(dart_rti.findType("web_audio|AudioTrack(core|int)")))(),
    StringToAudioTrackN: () => (T$7.StringToAudioTrackN = dart.constFn(dart_rti.findType("web_audio|AudioTrack?(core|String)")))(),
    VoidToAudioWorkletGlobalScope: () => (T$7.VoidToAudioWorkletGlobalScope = dart.constFn(dart_rti.findType("web_audio|AudioWorkletGlobalScope()")))(),
    VoidToAudioWorkletNode: () => (T$7.VoidToAudioWorkletNode = dart.constFn(dart_rti.findType("web_audio|AudioWorkletNode()")))(),
    BaseAudioContextAndStringAndMapNToAudioWorkletNode: () => (T$7.BaseAudioContextAndStringAndMapNToAudioWorkletNode = dart.constFn(dart_rti.findType("web_audio|AudioWorkletNode(web_audio|BaseAudioContext,core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicAnddynamicToAudioWorkletNode: () => (T$7.dynamicAnddynamicAnddynamicToAudioWorkletNode = dart.constFn(dart_rti.findType("web_audio|AudioWorkletNode(@,@,@)")))(),
    dynamicAnddynamicToAudioWorkletNode: () => (T$7.dynamicAnddynamicToAudioWorkletNode = dart.constFn(dart_rti.findType("web_audio|AudioWorkletNode(@,@)")))(),
    AudioParamMapN: () => (T$7.AudioParamMapN = dart.constFn(dart_rti.findType("web_audio|AudioParamMap?")))(),
    VoidToAudioWorkletProcessor: () => (T$7.VoidToAudioWorkletProcessor = dart.constFn(dart_rti.findType("web_audio|AudioWorkletProcessor()")))(),
    BaseAudioContextAndMapNToBiquadFilterNode: () => (T$7.BaseAudioContextAndMapNToBiquadFilterNode = dart.constFn(dart_rti.findType("web_audio|BiquadFilterNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToBiquadFilterNode: () => (T$7.dynamicAnddynamicToBiquadFilterNode = dart.constFn(dart_rti.findType("web_audio|BiquadFilterNode(@,@)")))(),
    dynamicToBiquadFilterNode: () => (T$7.dynamicToBiquadFilterNode = dart.constFn(dart_rti.findType("web_audio|BiquadFilterNode(@)")))(),
    Float32ListAndFloat32ListAndFloat32ListTovoid: () => (T$7.Float32ListAndFloat32ListAndFloat32ListTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,typed_data|Float32List,typed_data|Float32List)")))(),
    VoidToChannelMergerNode: () => (T$7.VoidToChannelMergerNode = dart.constFn(dart_rti.findType("web_audio|ChannelMergerNode()")))(),
    BaseAudioContextAndMapNToChannelMergerNode: () => (T$7.BaseAudioContextAndMapNToChannelMergerNode = dart.constFn(dart_rti.findType("web_audio|ChannelMergerNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToChannelMergerNode: () => (T$7.dynamicAnddynamicToChannelMergerNode = dart.constFn(dart_rti.findType("web_audio|ChannelMergerNode(@,@)")))(),
    dynamicToChannelMergerNode: () => (T$7.dynamicToChannelMergerNode = dart.constFn(dart_rti.findType("web_audio|ChannelMergerNode(@)")))(),
    VoidToChannelSplitterNode: () => (T$7.VoidToChannelSplitterNode = dart.constFn(dart_rti.findType("web_audio|ChannelSplitterNode()")))(),
    BaseAudioContextAndMapNToChannelSplitterNode: () => (T$7.BaseAudioContextAndMapNToChannelSplitterNode = dart.constFn(dart_rti.findType("web_audio|ChannelSplitterNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToChannelSplitterNode: () => (T$7.dynamicAnddynamicToChannelSplitterNode = dart.constFn(dart_rti.findType("web_audio|ChannelSplitterNode(@,@)")))(),
    dynamicToChannelSplitterNode: () => (T$7.dynamicToChannelSplitterNode = dart.constFn(dart_rti.findType("web_audio|ChannelSplitterNode(@)")))(),
    BaseAudioContextAndMapNToConstantSourceNode: () => (T$7.BaseAudioContextAndMapNToConstantSourceNode = dart.constFn(dart_rti.findType("web_audio|ConstantSourceNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToConstantSourceNode: () => (T$7.dynamicAnddynamicToConstantSourceNode = dart.constFn(dart_rti.findType("web_audio|ConstantSourceNode(@,@)")))(),
    dynamicToConstantSourceNode: () => (T$7.dynamicToConstantSourceNode = dart.constFn(dart_rti.findType("web_audio|ConstantSourceNode(@)")))(),
    BaseAudioContextAndMapNToConvolverNode: () => (T$7.BaseAudioContextAndMapNToConvolverNode = dart.constFn(dart_rti.findType("web_audio|ConvolverNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToConvolverNode: () => (T$7.dynamicAnddynamicToConvolverNode = dart.constFn(dart_rti.findType("web_audio|ConvolverNode(@,@)")))(),
    dynamicToConvolverNode: () => (T$7.dynamicToConvolverNode = dart.constFn(dart_rti.findType("web_audio|ConvolverNode(@)")))(),
    VoidToDelayNode: () => (T$7.VoidToDelayNode = dart.constFn(dart_rti.findType("web_audio|DelayNode()")))(),
    BaseAudioContextAndMapNToDelayNode: () => (T$7.BaseAudioContextAndMapNToDelayNode = dart.constFn(dart_rti.findType("web_audio|DelayNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToDelayNode: () => (T$7.dynamicAnddynamicToDelayNode = dart.constFn(dart_rti.findType("web_audio|DelayNode(@,@)")))(),
    dynamicToDelayNode: () => (T$7.dynamicToDelayNode = dart.constFn(dart_rti.findType("web_audio|DelayNode(@)")))(),
    BaseAudioContextAndMapNToDynamicsCompressorNode: () => (T$7.BaseAudioContextAndMapNToDynamicsCompressorNode = dart.constFn(dart_rti.findType("web_audio|DynamicsCompressorNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToDynamicsCompressorNode: () => (T$7.dynamicAnddynamicToDynamicsCompressorNode = dart.constFn(dart_rti.findType("web_audio|DynamicsCompressorNode(@,@)")))(),
    dynamicToDynamicsCompressorNode: () => (T$7.dynamicToDynamicsCompressorNode = dart.constFn(dart_rti.findType("web_audio|DynamicsCompressorNode(@)")))(),
    BaseAudioContextAndMapNToGainNode: () => (T$7.BaseAudioContextAndMapNToGainNode = dart.constFn(dart_rti.findType("web_audio|GainNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToGainNode: () => (T$7.dynamicAnddynamicToGainNode = dart.constFn(dart_rti.findType("web_audio|GainNode(@,@)")))(),
    dynamicToGainNode: () => (T$7.dynamicToGainNode = dart.constFn(dart_rti.findType("web_audio|GainNode(@)")))(),
    VoidToIirFilterNode: () => (T$7.VoidToIirFilterNode = dart.constFn(dart_rti.findType("web_audio|IirFilterNode()")))(),
    BaseAudioContextAndMapToIirFilterNode: () => (T$7.BaseAudioContextAndMapToIirFilterNode = dart.constFn(dart_rti.findType("web_audio|IirFilterNode(web_audio|BaseAudioContext,core|Map<@,@>)")))(),
    dynamicAnddynamicToIirFilterNode: () => (T$7.dynamicAnddynamicToIirFilterNode = dart.constFn(dart_rti.findType("web_audio|IirFilterNode(@,@)")))(),
    VoidToMediaElementAudioSourceNode: () => (T$7.VoidToMediaElementAudioSourceNode = dart.constFn(dart_rti.findType("web_audio|MediaElementAudioSourceNode()")))(),
    BaseAudioContextAndMapToMediaElementAudioSourceNode: () => (T$7.BaseAudioContextAndMapToMediaElementAudioSourceNode = dart.constFn(dart_rti.findType("web_audio|MediaElementAudioSourceNode(web_audio|BaseAudioContext,core|Map<@,@>)")))(),
    dynamicAnddynamicToMediaElementAudioSourceNode: () => (T$7.dynamicAnddynamicToMediaElementAudioSourceNode = dart.constFn(dart_rti.findType("web_audio|MediaElementAudioSourceNode(@,@)")))(),
    MediaElementN: () => (T$7.MediaElementN = dart.constFn(dart_rti.findType("html|MediaElement?")))(),
    BaseAudioContextAndMapNToMediaStreamAudioDestinationNode: () => (T$7.BaseAudioContextAndMapNToMediaStreamAudioDestinationNode = dart.constFn(dart_rti.findType("web_audio|MediaStreamAudioDestinationNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToMediaStreamAudioDestinationNode: () => (T$7.dynamicAnddynamicToMediaStreamAudioDestinationNode = dart.constFn(dart_rti.findType("web_audio|MediaStreamAudioDestinationNode(@,@)")))(),
    dynamicToMediaStreamAudioDestinationNode: () => (T$7.dynamicToMediaStreamAudioDestinationNode = dart.constFn(dart_rti.findType("web_audio|MediaStreamAudioDestinationNode(@)")))(),
    VoidToMediaStreamAudioSourceNode: () => (T$7.VoidToMediaStreamAudioSourceNode = dart.constFn(dart_rti.findType("web_audio|MediaStreamAudioSourceNode()")))(),
    BaseAudioContextAndMapToMediaStreamAudioSourceNode: () => (T$7.BaseAudioContextAndMapToMediaStreamAudioSourceNode = dart.constFn(dart_rti.findType("web_audio|MediaStreamAudioSourceNode(web_audio|BaseAudioContext,core|Map<@,@>)")))(),
    dynamicAnddynamicToMediaStreamAudioSourceNode: () => (T$7.dynamicAnddynamicToMediaStreamAudioSourceNode = dart.constFn(dart_rti.findType("web_audio|MediaStreamAudioSourceNode(@,@)")))(),
    VoidToOfflineAudioCompletionEvent: () => (T$7.VoidToOfflineAudioCompletionEvent = dart.constFn(dart_rti.findType("web_audio|OfflineAudioCompletionEvent()")))(),
    StringAndMapToOfflineAudioCompletionEvent: () => (T$7.StringAndMapToOfflineAudioCompletionEvent = dart.constFn(dart_rti.findType("web_audio|OfflineAudioCompletionEvent(core|String,core|Map<@,@>)")))(),
    dynamicAnddynamicToOfflineAudioCompletionEvent: () => (T$7.dynamicAnddynamicToOfflineAudioCompletionEvent = dart.constFn(dart_rti.findType("web_audio|OfflineAudioCompletionEvent(@,@)")))(),
    VoidToOfflineAudioContext: () => (T$7.VoidToOfflineAudioContext = dart.constFn(dart_rti.findType("web_audio|OfflineAudioContext()")))(),
    dynamicAndintNAndnumNToOfflineAudioContext: () => (T$7.dynamicAndintNAndnumNToOfflineAudioContext = dart.constFn(dart_rti.findType("web_audio|OfflineAudioContext(@[core|int?,core|num?])")))(),
    dynamicAnddynamicAnddynamicToOfflineAudioContext: () => (T$7.dynamicAnddynamicAnddynamicToOfflineAudioContext = dart.constFn(dart_rti.findType("web_audio|OfflineAudioContext(@,@,@)")))(),
    dynamicToOfflineAudioContext: () => (T$7.dynamicToOfflineAudioContext = dart.constFn(dart_rti.findType("web_audio|OfflineAudioContext(@)")))(),
    VoidToFutureOfAudioBuffer: () => (T$7.VoidToFutureOfAudioBuffer = dart.constFn(dart_rti.findType("async|Future<web_audio|AudioBuffer>()")))(),
    numToFuture: () => (T$7.numToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|num)")))(),
    BaseAudioContextAndMapNToOscillatorNode: () => (T$7.BaseAudioContextAndMapNToOscillatorNode = dart.constFn(dart_rti.findType("web_audio|OscillatorNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToOscillatorNode: () => (T$7.dynamicAnddynamicToOscillatorNode = dart.constFn(dart_rti.findType("web_audio|OscillatorNode(@,@)")))(),
    dynamicToOscillatorNode: () => (T$7.dynamicToOscillatorNode = dart.constFn(dart_rti.findType("web_audio|OscillatorNode(@)")))(),
    PeriodicWaveTovoid: () => (T$7.PeriodicWaveTovoid = dart.constFn(dart_rti.findType("~(web_audio|PeriodicWave)")))(),
    BaseAudioContextAndMapNToPannerNode: () => (T$7.BaseAudioContextAndMapNToPannerNode = dart.constFn(dart_rti.findType("web_audio|PannerNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToPannerNode: () => (T$7.dynamicAnddynamicToPannerNode = dart.constFn(dart_rti.findType("web_audio|PannerNode(@,@)")))(),
    dynamicToPannerNode: () => (T$7.dynamicToPannerNode = dart.constFn(dart_rti.findType("web_audio|PannerNode(@)")))(),
    VoidToPeriodicWave: () => (T$7.VoidToPeriodicWave = dart.constFn(dart_rti.findType("web_audio|PeriodicWave()")))(),
    BaseAudioContextAndMapNToPeriodicWave: () => (T$7.BaseAudioContextAndMapNToPeriodicWave = dart.constFn(dart_rti.findType("web_audio|PeriodicWave(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToPeriodicWave: () => (T$7.dynamicAnddynamicToPeriodicWave = dart.constFn(dart_rti.findType("web_audio|PeriodicWave(@,@)")))(),
    dynamicToPeriodicWave: () => (T$7.dynamicToPeriodicWave = dart.constFn(dart_rti.findType("web_audio|PeriodicWave(@)")))(),
    VoidToScriptProcessorNode: () => (T$7.VoidToScriptProcessorNode = dart.constFn(dart_rti.findType("web_audio|ScriptProcessorNode()")))(),
    FnTovoid$34: () => (T$7.FnTovoid$34 = dart.constFn(dart_rti.findType("~(@(html|Event))")))(),
    StreamOfAudioProcessingEvent: () => (T$7.StreamOfAudioProcessingEvent = dart.constFn(dart_rti.findType("async|Stream<web_audio|AudioProcessingEvent>")))(),
    EventStreamProviderOfAudioProcessingEvent: () => (T$7.EventStreamProviderOfAudioProcessingEvent = dart.constFn(dart_rti.findType("html|EventStreamProvider<web_audio|AudioProcessingEvent>")))(),
    AudioProcessingEventL: () => (T$7.AudioProcessingEventL = dart.constFn(dart_rti.findType("web_audio|AudioProcessingEvent*")))(),
    EventStreamProviderOfAudioProcessingEventL: () => (T$7.EventStreamProviderOfAudioProcessingEventL = dart.constFn(dart_rti.findType("html|EventStreamProvider<web_audio|AudioProcessingEvent*>")))(),
    BaseAudioContextAndMapNToStereoPannerNode: () => (T$7.BaseAudioContextAndMapNToStereoPannerNode = dart.constFn(dart_rti.findType("web_audio|StereoPannerNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToStereoPannerNode: () => (T$7.dynamicAnddynamicToStereoPannerNode = dart.constFn(dart_rti.findType("web_audio|StereoPannerNode(@,@)")))(),
    dynamicToStereoPannerNode: () => (T$7.dynamicToStereoPannerNode = dart.constFn(dart_rti.findType("web_audio|StereoPannerNode(@)")))(),
    BaseAudioContextAndMapNToWaveShaperNode: () => (T$7.BaseAudioContextAndMapNToWaveShaperNode = dart.constFn(dart_rti.findType("web_audio|WaveShaperNode(web_audio|BaseAudioContext[core|Map<@,@>?])")))(),
    dynamicAnddynamicToWaveShaperNode: () => (T$7.dynamicAnddynamicToWaveShaperNode = dart.constFn(dart_rti.findType("web_audio|WaveShaperNode(@,@)")))(),
    dynamicToWaveShaperNode: () => (T$7.dynamicToWaveShaperNode = dart.constFn(dart_rti.findType("web_audio|WaveShaperNode(@)")))(),
    VoidToActiveInfo: () => (T$7.VoidToActiveInfo = dart.constFn(dart_rti.findType("web_gl|ActiveInfo()")))(),
    VoidToAngleInstancedArrays: () => (T$7.VoidToAngleInstancedArrays = dart.constFn(dart_rti.findType("web_gl|AngleInstancedArrays()")))(),
    intAndintAndint__Tovoid$1: () => (T$7.intAndintAndint__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Tovoid$2: () => (T$7.intAndintAndint__Tovoid$2 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int)")))(),
    VoidToBuffer: () => (T$7.VoidToBuffer = dart.constFn(dart_rti.findType("web_gl|Buffer()")))(),
    VoidToCanvas: () => (T$7.VoidToCanvas = dart.constFn(dart_rti.findType("web_gl|Canvas()")))(),
    VoidToColorBufferFloat: () => (T$7.VoidToColorBufferFloat = dart.constFn(dart_rti.findType("web_gl|ColorBufferFloat()")))(),
    VoidToCompressedTextureAstc: () => (T$7.VoidToCompressedTextureAstc = dart.constFn(dart_rti.findType("web_gl|CompressedTextureAstc()")))(),
    VoidToCompressedTextureAtc: () => (T$7.VoidToCompressedTextureAtc = dart.constFn(dart_rti.findType("web_gl|CompressedTextureAtc()")))(),
    VoidToCompressedTextureETC1: () => (T$7.VoidToCompressedTextureETC1 = dart.constFn(dart_rti.findType("web_gl|CompressedTextureETC1()")))(),
    VoidToCompressedTextureEtc: () => (T$7.VoidToCompressedTextureEtc = dart.constFn(dart_rti.findType("web_gl|CompressedTextureEtc()")))(),
    VoidToCompressedTexturePvrtc: () => (T$7.VoidToCompressedTexturePvrtc = dart.constFn(dart_rti.findType("web_gl|CompressedTexturePvrtc()")))(),
    VoidToCompressedTextureS3TC: () => (T$7.VoidToCompressedTextureS3TC = dart.constFn(dart_rti.findType("web_gl|CompressedTextureS3TC()")))(),
    VoidToCompressedTextureS3TCsRgb: () => (T$7.VoidToCompressedTextureS3TCsRgb = dart.constFn(dart_rti.findType("web_gl|CompressedTextureS3TCsRgb()")))(),
    VoidToContextEvent: () => (T$7.VoidToContextEvent = dart.constFn(dart_rti.findType("web_gl|ContextEvent()")))(),
    StringAndMapNToContextEvent: () => (T$7.StringAndMapNToContextEvent = dart.constFn(dart_rti.findType("web_gl|ContextEvent(core|String[core|Map<@,@>?])")))(),
    dynamicAnddynamicToContextEvent: () => (T$7.dynamicAnddynamicToContextEvent = dart.constFn(dart_rti.findType("web_gl|ContextEvent(@,@)")))(),
    dynamicToContextEvent: () => (T$7.dynamicToContextEvent = dart.constFn(dart_rti.findType("web_gl|ContextEvent(@)")))(),
    VoidToDebugRendererInfo: () => (T$7.VoidToDebugRendererInfo = dart.constFn(dart_rti.findType("web_gl|DebugRendererInfo()")))(),
    VoidToDebugShaders: () => (T$7.VoidToDebugShaders = dart.constFn(dart_rti.findType("web_gl|DebugShaders()")))(),
    ShaderToStringN: () => (T$7.ShaderToStringN = dart.constFn(dart_rti.findType("core|String?(web_gl|Shader)")))(),
    VoidToDepthTexture: () => (T$7.VoidToDepthTexture = dart.constFn(dart_rti.findType("web_gl|DepthTexture()")))(),
    VoidToDrawBuffers: () => (T$7.VoidToDrawBuffers = dart.constFn(dart_rti.findType("web_gl|DrawBuffers()")))(),
    VoidToEXTsRgb: () => (T$7.VoidToEXTsRgb = dart.constFn(dart_rti.findType("web_gl|EXTsRgb()")))(),
    VoidToExtBlendMinMax: () => (T$7.VoidToExtBlendMinMax = dart.constFn(dart_rti.findType("web_gl|ExtBlendMinMax()")))(),
    VoidToExtColorBufferFloat: () => (T$7.VoidToExtColorBufferFloat = dart.constFn(dart_rti.findType("web_gl|ExtColorBufferFloat()")))(),
    VoidToExtColorBufferHalfFloat: () => (T$7.VoidToExtColorBufferHalfFloat = dart.constFn(dart_rti.findType("web_gl|ExtColorBufferHalfFloat()")))(),
    VoidToExtDisjointTimerQuery: () => (T$7.VoidToExtDisjointTimerQuery = dart.constFn(dart_rti.findType("web_gl|ExtDisjointTimerQuery()")))(),
    intAndTimerQueryExtTovoid: () => (T$7.intAndTimerQueryExtTovoid = dart.constFn(dart_rti.findType("~(core|int,web_gl|TimerQueryExt)")))(),
    VoidToTimerQueryExt: () => (T$7.VoidToTimerQueryExt = dart.constFn(dart_rti.findType("web_gl|TimerQueryExt()")))(),
    TimerQueryExtNTovoid: () => (T$7.TimerQueryExtNTovoid = dart.constFn(dart_rti.findType("~(web_gl|TimerQueryExt?)")))(),
    intAndintToObjectN: () => (T$7.intAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|int,core|int)")))(),
    TimerQueryExtAndintToObjectN: () => (T$7.TimerQueryExtAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(web_gl|TimerQueryExt,core|int)")))(),
    TimerQueryExtNTobool: () => (T$7.TimerQueryExtNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|TimerQueryExt?)")))(),
    TimerQueryExtAndintTovoid: () => (T$7.TimerQueryExtAndintTovoid = dart.constFn(dart_rti.findType("~(web_gl|TimerQueryExt,core|int)")))(),
    VoidToExtDisjointTimerQueryWebGL2: () => (T$7.VoidToExtDisjointTimerQueryWebGL2 = dart.constFn(dart_rti.findType("web_gl|ExtDisjointTimerQueryWebGL2()")))(),
    QueryAndintTovoid: () => (T$7.QueryAndintTovoid = dart.constFn(dart_rti.findType("~(web_gl|Query,core|int)")))(),
    VoidToExtFragDepth: () => (T$7.VoidToExtFragDepth = dart.constFn(dart_rti.findType("web_gl|ExtFragDepth()")))(),
    VoidToExtShaderTextureLod: () => (T$7.VoidToExtShaderTextureLod = dart.constFn(dart_rti.findType("web_gl|ExtShaderTextureLod()")))(),
    VoidToExtTextureFilterAnisotropic: () => (T$7.VoidToExtTextureFilterAnisotropic = dart.constFn(dart_rti.findType("web_gl|ExtTextureFilterAnisotropic()")))(),
    VoidToFramebuffer: () => (T$7.VoidToFramebuffer = dart.constFn(dart_rti.findType("web_gl|Framebuffer()")))(),
    VoidToGetBufferSubDataAsync: () => (T$7.VoidToGetBufferSubDataAsync = dart.constFn(dart_rti.findType("web_gl|GetBufferSubDataAsync()")))(),
    intAndintAndTypedData__ToFuture: () => (T$7.intAndintAndTypedData__ToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|int,core|int,typed_data|TypedData[core|int?,core|int?])")))(),
    VoidToLoseContext: () => (T$7.VoidToLoseContext = dart.constFn(dart_rti.findType("web_gl|LoseContext()")))(),
    VoidToOesElementIndexUint: () => (T$7.VoidToOesElementIndexUint = dart.constFn(dart_rti.findType("web_gl|OesElementIndexUint()")))(),
    VoidToOesStandardDerivatives: () => (T$7.VoidToOesStandardDerivatives = dart.constFn(dart_rti.findType("web_gl|OesStandardDerivatives()")))(),
    VoidToOesTextureFloat: () => (T$7.VoidToOesTextureFloat = dart.constFn(dart_rti.findType("web_gl|OesTextureFloat()")))(),
    VoidToOesTextureFloatLinear: () => (T$7.VoidToOesTextureFloatLinear = dart.constFn(dart_rti.findType("web_gl|OesTextureFloatLinear()")))(),
    VoidToOesTextureHalfFloat: () => (T$7.VoidToOesTextureHalfFloat = dart.constFn(dart_rti.findType("web_gl|OesTextureHalfFloat()")))(),
    VoidToOesTextureHalfFloatLinear: () => (T$7.VoidToOesTextureHalfFloatLinear = dart.constFn(dart_rti.findType("web_gl|OesTextureHalfFloatLinear()")))(),
    VoidToOesVertexArrayObject: () => (T$7.VoidToOesVertexArrayObject = dart.constFn(dart_rti.findType("web_gl|OesVertexArrayObject()")))(),
    VertexArrayObjectOesNTovoid: () => (T$7.VertexArrayObjectOesNTovoid = dart.constFn(dart_rti.findType("~(web_gl|VertexArrayObjectOes?)")))(),
    VoidToVertexArrayObjectOes: () => (T$7.VoidToVertexArrayObjectOes = dart.constFn(dart_rti.findType("web_gl|VertexArrayObjectOes()")))(),
    VertexArrayObjectOesNTobool: () => (T$7.VertexArrayObjectOesNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|VertexArrayObjectOes?)")))(),
    VoidToProgram: () => (T$7.VoidToProgram = dart.constFn(dart_rti.findType("web_gl|Program()")))(),
    VoidToQuery: () => (T$7.VoidToQuery = dart.constFn(dart_rti.findType("web_gl|Query()")))(),
    VoidToRenderbuffer: () => (T$7.VoidToRenderbuffer = dart.constFn(dart_rti.findType("web_gl|Renderbuffer()")))()
  };
  var T$8 = {
    ImageElement$1: () => (T$8.ImageElement$1 = dart.constFn(dart_rti.findType("html|ImageElement")))(),
    VideoElement: () => (T$8.VideoElement = dart.constFn(dart_rti.findType("html|VideoElement")))(),
    VoidToRenderingContext: () => (T$8.VoidToRenderingContext = dart.constFn(dart_rti.findType("web_gl|RenderingContext()")))(),
    ProgramAndShaderTovoid: () => (T$8.ProgramAndShaderTovoid = dart.constFn(dart_rti.findType("~(web_gl|Program,web_gl|Shader)")))(),
    ProgramAndintAndStringTovoid: () => (T$8.ProgramAndintAndStringTovoid = dart.constFn(dart_rti.findType("~(web_gl|Program,core|int,core|String)")))(),
    intAndBufferNTovoid: () => (T$8.intAndBufferNTovoid = dart.constFn(dart_rti.findType("~(core|int,web_gl|Buffer?)")))(),
    intAndFramebufferNTovoid: () => (T$8.intAndFramebufferNTovoid = dart.constFn(dart_rti.findType("~(core|int,web_gl|Framebuffer?)")))(),
    intAndRenderbufferNTovoid: () => (T$8.intAndRenderbufferNTovoid = dart.constFn(dart_rti.findType("~(core|int,web_gl|Renderbuffer?)")))(),
    intAndTextureNTovoid: () => (T$8.intAndTextureNTovoid = dart.constFn(dart_rti.findType("~(core|int,web_gl|Texture?)")))(),
    intAnddynamicAndintTovoid: () => (T$8.intAnddynamicAndintTovoid = dart.constFn(dart_rti.findType("~(core|int,@,core|int)")))(),
    intAndintAnddynamicTovoid: () => (T$8.intAndintAnddynamicTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,@)")))(),
    boolAndboolAndbool__Tovoid: () => (T$8.boolAndboolAndbool__Tovoid = dart.constFn(dart_rti.findType("~(core|bool,core|bool,core|bool,core|bool)")))(),
    ShaderTovoid: () => (T$8.ShaderTovoid = dart.constFn(dart_rti.findType("~(web_gl|Shader)")))(),
    intAndintAndint__Tovoid$3: () => (T$8.intAndintAndint__Tovoid$3 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,typed_data|TypedData)")))(),
    intAndintAndint__Tovoid$4: () => (T$8.intAndintAndint__Tovoid$4 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,typed_data|TypedData)")))(),
    intAndintAndint__Tovoid$5: () => (T$8.intAndintAndint__Tovoid$5 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intToShader: () => (T$8.intToShader = dart.constFn(dart_rti.findType("web_gl|Shader(core|int)")))(),
    VoidToTexture: () => (T$8.VoidToTexture = dart.constFn(dart_rti.findType("web_gl|Texture()")))(),
    BufferNTovoid: () => (T$8.BufferNTovoid = dart.constFn(dart_rti.findType("~(web_gl|Buffer?)")))(),
    FramebufferNTovoid: () => (T$8.FramebufferNTovoid = dart.constFn(dart_rti.findType("~(web_gl|Framebuffer?)")))(),
    ProgramNTovoid: () => (T$8.ProgramNTovoid = dart.constFn(dart_rti.findType("~(web_gl|Program?)")))(),
    RenderbufferNTovoid: () => (T$8.RenderbufferNTovoid = dart.constFn(dart_rti.findType("~(web_gl|Renderbuffer?)")))(),
    ShaderNTovoid: () => (T$8.ShaderNTovoid = dart.constFn(dart_rti.findType("~(web_gl|Shader?)")))(),
    TextureNTovoid: () => (T$8.TextureNTovoid = dart.constFn(dart_rti.findType("~(web_gl|Texture?)")))(),
    intAndintAndintTovoid: () => (T$8.intAndintAndintTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int)")))(),
    intAndintAndint__Tovoid$6: () => (T$8.intAndintAndint__Tovoid$6 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,web_gl|Renderbuffer?)")))(),
    intAndintAndint__Tovoid$7: () => (T$8.intAndintAndint__Tovoid$7 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,web_gl|Texture?,core|int)")))(),
    ProgramAndintToActiveInfo: () => (T$8.ProgramAndintToActiveInfo = dart.constFn(dart_rti.findType("web_gl|ActiveInfo(web_gl|Program,core|int)")))(),
    ProgramToListNOfShader: () => (T$8.ProgramToListNOfShader = dart.constFn(dart_rti.findType("core|List<web_gl|Shader>?(web_gl|Program)")))(),
    ProgramAndStringToint: () => (T$8.ProgramAndStringToint = dart.constFn(dart_rti.findType("core|int(web_gl|Program,core|String)")))(),
    VoidToMapN: () => (T$8.VoidToMapN = dart.constFn(dart_rti.findType("core|Map<@,@>?()")))(),
    intAndintAndintToObjectN: () => (T$8.intAndintAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|int,core|int,core|int)")))(),
    ProgramToStringN: () => (T$8.ProgramToStringN = dart.constFn(dart_rti.findType("core|String?(web_gl|Program)")))(),
    ProgramAndintToObjectN: () => (T$8.ProgramAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(web_gl|Program,core|int)")))(),
    ShaderAndintToObjectN: () => (T$8.ShaderAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(web_gl|Shader,core|int)")))(),
    intAndintToShaderPrecisionFormat: () => (T$8.intAndintToShaderPrecisionFormat = dart.constFn(dart_rti.findType("web_gl|ShaderPrecisionFormat(core|int,core|int)")))(),
    VoidToListNOfString: () => (T$8.VoidToListNOfString = dart.constFn(dart_rti.findType("core|List<core|String>?()")))(),
    ProgramAndUniformLocationToObjectN: () => (T$8.ProgramAndUniformLocationToObjectN = dart.constFn(dart_rti.findType("core|Object?(web_gl|Program,web_gl|UniformLocation)")))(),
    ProgramAndStringToUniformLocation: () => (T$8.ProgramAndStringToUniformLocation = dart.constFn(dart_rti.findType("web_gl|UniformLocation(web_gl|Program,core|String)")))(),
    BufferNTobool: () => (T$8.BufferNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|Buffer?)")))(),
    FramebufferNTobool: () => (T$8.FramebufferNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|Framebuffer?)")))(),
    ProgramNTobool: () => (T$8.ProgramNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|Program?)")))(),
    RenderbufferNTobool: () => (T$8.RenderbufferNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|Renderbuffer?)")))(),
    ShaderNTobool: () => (T$8.ShaderNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|Shader?)")))(),
    TextureNTobool: () => (T$8.TextureNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|Texture?)")))(),
    ProgramTovoid: () => (T$8.ProgramTovoid = dart.constFn(dart_rti.findType("~(web_gl|Program)")))(),
    intAndintAndint__Tovoid$8: () => (T$8.intAndintAndint__Tovoid$8 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,typed_data|TypedData?)")))(),
    numAndboolTovoid: () => (T$8.numAndboolTovoid = dart.constFn(dart_rti.findType("~(core|num,core|bool)")))(),
    ShaderAndStringTovoid: () => (T$8.ShaderAndStringTovoid = dart.constFn(dart_rti.findType("~(web_gl|Shader,core|String)")))(),
    intAndintAndint__Tovoid$9: () => (T$8.intAndintAndint__Tovoid$9 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,@[core|int?,core|int?,typed_data|TypedData?])")))(),
    dynamicAnddynamicAnddynamic__Tovoid$3: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$3 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,core|int,@,@,typed_data|TypedData?)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$4: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$4 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$5: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$5 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,html|ImageElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$6: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$6 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,html|CanvasElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$7: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$7 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,html|VideoElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$8: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$8 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,html|ImageBitmap)")))(),
    intAndintAndnumTovoid: () => (T$8.intAndintAndnumTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,core|num)")))(),
    intAndintAndint__Tovoid$10: () => (T$8.intAndintAndint__Tovoid$10 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,@[core|int?,typed_data|TypedData?])")))(),
    dynamicAnddynamicAnddynamic__Tovoid$9: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$9 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,core|int,@,typed_data|TypedData?)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$10: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$10 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,html|ImageElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$11: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$11 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,html|CanvasElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$12: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$12 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,html|VideoElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$13: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$13 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,html|ImageBitmap)")))(),
    UniformLocationNAndnumTovoid: () => (T$8.UniformLocationNAndnumTovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|num)")))(),
    UniformLocationNAnddynamicTovoid: () => (T$8.UniformLocationNAnddynamicTovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,@)")))(),
    UniformLocationNAndintTovoid: () => (T$8.UniformLocationNAndintTovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|int)")))(),
    UniformLocationNAndnumAndnumTovoid: () => (T$8.UniformLocationNAndnumAndnumTovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|num,core|num)")))(),
    UniformLocationNAndintAndintTovoid: () => (T$8.UniformLocationNAndintAndintTovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|int,core|int)")))(),
    UniformLocationNAndnumAndnum__Tovoid: () => (T$8.UniformLocationNAndnumAndnum__Tovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|num,core|num,core|num)")))(),
    UniformLocationNAndintAndint__Tovoid: () => (T$8.UniformLocationNAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|int,core|int,core|int)")))(),
    UniformLocationNAndnumAndnum__Tovoid$1: () => (T$8.UniformLocationNAndnumAndnum__Tovoid$1 = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|num,core|num,core|num,core|num)")))(),
    UniformLocationNAndintAndint__Tovoid$1: () => (T$8.UniformLocationNAndintAndint__Tovoid$1 = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|int,core|int,core|int,core|int)")))(),
    UniformLocationNAndboolAnddynamicTovoid: () => (T$8.UniformLocationNAndboolAnddynamicTovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|bool,@)")))(),
    intAndnumAndnumTovoid: () => (T$8.intAndnumAndnumTovoid = dart.constFn(dart_rti.findType("~(core|int,core|num,core|num)")))(),
    intAndnumAndnum__Tovoid$1: () => (T$8.intAndnumAndnum__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|int,core|num,core|num,core|num)")))(),
    intAndnumAndnum__Tovoid$2: () => (T$8.intAndnumAndnum__Tovoid$2 = dart.constFn(dart_rti.findType("~(core|int,core|num,core|num,core|num,core|num)")))(),
    intAndintAndint__Tovoid$11: () => (T$8.intAndintAndint__Tovoid$11 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|bool,core|int,core|int)")))(),
    intAndintAndint__Tovoid$12: () => (T$8.intAndintAndint__Tovoid$12 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,@)")))(),
    intAndintAndint__Tovoid$13: () => (T$8.intAndintAndint__Tovoid$13 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,typed_data|TypedData)")))(),
    intAndintAndint__Tovoid$14: () => (T$8.intAndintAndint__Tovoid$14 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,@)")))(),
    intAndintAndint__Tovoid$15: () => (T$8.intAndintAndint__Tovoid$15 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,typed_data|TypedData)")))(),
    intAndTypedDataAndintTovoid: () => (T$8.intAndTypedDataAndintTovoid = dart.constFn(dart_rti.findType("~(core|int,typed_data|TypedData,core|int)")))(),
    intAndintAndTypedDataTovoid: () => (T$8.intAndintAndTypedDataTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,typed_data|TypedData)")))(),
    TypedData: () => (T$8.TypedData = dart.constFn(dart_rti.findType("typed_data|TypedData")))(),
    TypedDataN: () => (T$8.TypedDataN = dart.constFn(dart_rti.findType("typed_data|TypedData?")))(),
    VoidToRenderingContext2: () => (T$8.VoidToRenderingContext2 = dart.constFn(dart_rti.findType("web_gl|RenderingContext2()")))(),
    CanvasN: () => (T$8.CanvasN = dart.constFn(dart_rti.findType("web_gl|Canvas?")))(),
    intAndQueryTovoid: () => (T$8.intAndQueryTovoid = dart.constFn(dart_rti.findType("~(core|int,web_gl|Query)")))(),
    intAndintAndBufferNTovoid: () => (T$8.intAndintAndBufferNTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,web_gl|Buffer?)")))(),
    intAndintAndBufferN__Tovoid: () => (T$8.intAndintAndBufferN__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,web_gl|Buffer?,core|int,core|int)")))(),
    intAndSamplerNTovoid: () => (T$8.intAndSamplerNTovoid = dart.constFn(dart_rti.findType("~(core|int,web_gl|Sampler?)")))(),
    intAndTransformFeedbackNTovoid: () => (T$8.intAndTransformFeedbackNTovoid = dart.constFn(dart_rti.findType("~(core|int,web_gl|TransformFeedback?)")))(),
    VertexArrayObjectNTovoid: () => (T$8.VertexArrayObjectNTovoid = dart.constFn(dart_rti.findType("~(web_gl|VertexArrayObject?)")))(),
    intAndintAndint__Tovoid$16: () => (T$8.intAndintAndint__Tovoid$16 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndTypedDataAndint__Tovoid: () => (T$8.intAndTypedDataAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|int,typed_data|TypedData,core|int,core|int[core|int?])")))(),
    intAndintAndTypedData__Tovoid: () => (T$8.intAndintAndTypedData__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,typed_data|TypedData,core|int[core|int?])")))(),
    intAndintAndnum__Tovoid: () => (T$8.intAndintAndnum__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,core|num,core|int)")))(),
    intAndintAnddynamic__Tovoid: () => (T$8.intAndintAnddynamic__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,@[core|int?])")))(),
    SyncAndintAndintToint: () => (T$8.SyncAndintAndintToint = dart.constFn(dart_rti.findType("core|int(web_gl|Sync,core|int,core|int)")))(),
    intAndintAndint__Tovoid$17: () => (T$8.intAndintAndint__Tovoid$17 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,typed_data|TypedData,core|int[core|int?])")))(),
    intAndintAndint__Tovoid$18: () => (T$8.intAndintAndint__Tovoid$18 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,typed_data|TypedData[core|int?,core|int?])")))(),
    intAndintAndint__Tovoid$19: () => (T$8.intAndintAndint__Tovoid$19 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintAndint__Tovoid$20: () => (T$8.intAndintAndint__Tovoid$20 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,typed_data|TypedData,core|int[core|int?])")))(),
    intAndintAndint__Tovoid$21: () => (T$8.intAndintAndint__Tovoid$21 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,typed_data|TypedData[core|int?,core|int?])")))(),
    intAndintAndint__Tovoid$22: () => (T$8.intAndintAndint__Tovoid$22 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    VoidToQueryN: () => (T$8.VoidToQueryN = dart.constFn(dart_rti.findType("web_gl|Query?()")))(),
    VoidToSamplerN: () => (T$8.VoidToSamplerN = dart.constFn(dart_rti.findType("web_gl|Sampler?()")))(),
    VoidToTransformFeedbackN: () => (T$8.VoidToTransformFeedbackN = dart.constFn(dart_rti.findType("web_gl|TransformFeedback?()")))(),
    VoidToVertexArrayObjectN: () => (T$8.VoidToVertexArrayObjectN = dart.constFn(dart_rti.findType("web_gl|VertexArrayObject?()")))(),
    QueryNTovoid: () => (T$8.QueryNTovoid = dart.constFn(dart_rti.findType("~(web_gl|Query?)")))(),
    SamplerNTovoid: () => (T$8.SamplerNTovoid = dart.constFn(dart_rti.findType("~(web_gl|Sampler?)")))(),
    SyncNTovoid: () => (T$8.SyncNTovoid = dart.constFn(dart_rti.findType("~(web_gl|Sync?)")))(),
    TransformFeedbackNTovoid: () => (T$8.TransformFeedbackNTovoid = dart.constFn(dart_rti.findType("~(web_gl|TransformFeedback?)")))(),
    intAndintAndint__Tovoid$23: () => (T$8.intAndintAndint__Tovoid$23 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int)")))(),
    intAndintToSyncN: () => (T$8.intAndintToSyncN = dart.constFn(dart_rti.findType("web_gl|Sync?(core|int,core|int)")))(),
    intAndintAndTextureN__Tovoid: () => (T$8.intAndintAndTextureN__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,web_gl|Texture?,core|int,core|int)")))(),
    ProgramAndintToStringN: () => (T$8.ProgramAndintToStringN = dart.constFn(dart_rti.findType("core|String?(web_gl|Program,core|int)")))(),
    ProgramAndintAndintToObjectN: () => (T$8.ProgramAndintAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(web_gl|Program,core|int,core|int)")))(),
    ProgramAndListOfintAndintToObjectN: () => (T$8.ProgramAndListOfintAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(web_gl|Program,core|List<core|int>,core|int)")))(),
    intAndintAndTypedData__Tovoid$1: () => (T$8.intAndintAndTypedData__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|int,core|int,typed_data|TypedData[core|int?,core|int?])")))(),
    QueryAndintToObjectN: () => (T$8.QueryAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(web_gl|Query,core|int)")))(),
    SamplerAndintToObjectN: () => (T$8.SamplerAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(web_gl|Sampler,core|int)")))(),
    SyncAndintToObjectN: () => (T$8.SyncAndintToObjectN = dart.constFn(dart_rti.findType("core|Object?(web_gl|Sync,core|int)")))(),
    ProgramAndintToActiveInfoN: () => (T$8.ProgramAndintToActiveInfoN = dart.constFn(dart_rti.findType("web_gl|ActiveInfo?(web_gl|Program,core|int)")))(),
    ProgramAndListOfStringToListNOfint: () => (T$8.ProgramAndListOfStringToListNOfint = dart.constFn(dart_rti.findType("core|List<core|int>?(web_gl|Program,core|List<core|String>)")))(),
    ProgramAndListToListNOfint: () => (T$8.ProgramAndListToListNOfint = dart.constFn(dart_rti.findType("core|List<core|int>?(web_gl|Program,core|List<@>)")))(),
    intAndListOfintTovoid: () => (T$8.intAndListOfintTovoid = dart.constFn(dart_rti.findType("~(core|int,core|List<core|int>)")))(),
    intAndListOfintAndint__Tovoid: () => (T$8.intAndListOfintAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|List<core|int>,core|int,core|int,core|int,core|int)")))(),
    QueryNTobool: () => (T$8.QueryNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|Query?)")))(),
    SamplerNTobool: () => (T$8.SamplerNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|Sampler?)")))(),
    SyncNTobool: () => (T$8.SyncNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|Sync?)")))(),
    TransformFeedbackNTobool: () => (T$8.TransformFeedbackNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|TransformFeedback?)")))(),
    VertexArrayObjectNTobool: () => (T$8.VertexArrayObjectNTobool = dart.constFn(dart_rti.findType("core|bool(web_gl|VertexArrayObject?)")))(),
    intAndintAndint__Tovoid$24: () => (T$8.intAndintAndint__Tovoid$24 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,@[core|int?])")))(),
    SamplerAndintAndnumTovoid: () => (T$8.SamplerAndintAndnumTovoid = dart.constFn(dart_rti.findType("~(web_gl|Sampler,core|int,core|num)")))(),
    SamplerAndintAndintTovoid: () => (T$8.SamplerAndintAndintTovoid = dart.constFn(dart_rti.findType("~(web_gl|Sampler,core|int,core|int)")))(),
    intAndintAndint__Tovoid$25: () => (T$8.intAndintAndint__Tovoid$25 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,@[core|int?])")))(),
    dynamicAnddynamicAnddynamic__Tovoid$14: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$14 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,core|int)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$15: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$15 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$16: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$16 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,html|ImageElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$17: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$17 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,html|CanvasElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$18: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$18 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,html|VideoElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$19: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$19 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,html|ImageBitmap)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$20: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$20 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,typed_data|TypedData,@)")))(),
    intAndintAndint__Tovoid$26: () => (T$8.intAndintAndint__Tovoid$26 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,@[core|int?])")))(),
    dynamicAnddynamicAnddynamic__Tovoid$21: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$21 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,core|int)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$22: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$22 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,@)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$23: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$23 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,html|ImageElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$24: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$24 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,html|CanvasElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$25: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$25 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,html|VideoElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$26: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$26 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,html|ImageBitmap)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$27: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$27 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,typed_data|TypedData?)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$28: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$28 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,typed_data|TypedData,@)")))(),
    intAndintAndint__Tovoid$27: () => (T$8.intAndintAndint__Tovoid$27 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,@[core|int?])")))(),
    dynamicAnddynamicAnddynamic__Tovoid$29: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$29 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,@,core|int)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$30: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$30 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,@,@)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$31: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$31 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,@,html|ImageElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$32: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$32 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,@,html|CanvasElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$33: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$33 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,@,html|VideoElement)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$34: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$34 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,@,html|ImageBitmap)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$35: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$35 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,@,typed_data|TypedData)")))(),
    dynamicAnddynamicAnddynamic__Tovoid$36: () => (T$8.dynamicAnddynamicAnddynamic__Tovoid$36 = dart.constFn(dart_rti.findType("~(@,@,@,@,@,@,@,@,@,@,typed_data|TypedData,@)")))(),
    ProgramAndListOfStringAndintTovoid: () => (T$8.ProgramAndListOfStringAndintTovoid = dart.constFn(dart_rti.findType("~(web_gl|Program,core|List<core|String>,core|int)")))(),
    ProgramAndListAnddynamicTovoid: () => (T$8.ProgramAndListAnddynamicTovoid = dart.constFn(dart_rti.findType("~(web_gl|Program,core|List<@>,@)")))(),
    UniformLocationNAnddynamicAndint__Tovoid: () => (T$8.UniformLocationNAnddynamicAndint__Tovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,@,core|int[core|int?])")))(),
    UniformLocationNAnddynamicAndintN__Tovoid: () => (T$8.UniformLocationNAnddynamicAndintN__Tovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,@[core|int?,core|int?])")))(),
    ProgramAndintAndintTovoid: () => (T$8.ProgramAndintAndintTovoid = dart.constFn(dart_rti.findType("~(web_gl|Program,core|int,core|int)")))(),
    UniformLocationNAndboolAnddynamic__Tovoid: () => (T$8.UniformLocationNAndboolAnddynamic__Tovoid = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|bool,@,core|int[core|int?])")))(),
    UniformLocationNAndboolAnddynamic__Tovoid$1: () => (T$8.UniformLocationNAndboolAnddynamic__Tovoid$1 = dart.constFn(dart_rti.findType("~(web_gl|UniformLocation?,core|bool,@[core|int?,core|int?])")))(),
    SyncAndintAndintTovoid: () => (T$8.SyncAndintAndintTovoid = dart.constFn(dart_rti.findType("~(web_gl|Sync,core|int,core|int)")))(),
    VoidToSampler: () => (T$8.VoidToSampler = dart.constFn(dart_rti.findType("web_gl|Sampler()")))(),
    VoidToShader: () => (T$8.VoidToShader = dart.constFn(dart_rti.findType("web_gl|Shader()")))(),
    VoidToShaderPrecisionFormat: () => (T$8.VoidToShaderPrecisionFormat = dart.constFn(dart_rti.findType("web_gl|ShaderPrecisionFormat()")))(),
    VoidToSync: () => (T$8.VoidToSync = dart.constFn(dart_rti.findType("web_gl|Sync()")))(),
    VoidToTransformFeedback: () => (T$8.VoidToTransformFeedback = dart.constFn(dart_rti.findType("web_gl|TransformFeedback()")))(),
    VoidToUniformLocation: () => (T$8.VoidToUniformLocation = dart.constFn(dart_rti.findType("web_gl|UniformLocation()")))(),
    VoidToVertexArrayObject: () => (T$8.VoidToVertexArrayObject = dart.constFn(dart_rti.findType("web_gl|VertexArrayObject()")))(),
    VoidToWebGL: () => (T$8.VoidToWebGL = dart.constFn(dart_rti.findType("web_gl|WebGL()")))(),
    VoidTo_WebGL2RenderingContextBase: () => (T$8.VoidTo_WebGL2RenderingContextBase = dart.constFn(dart_rti.findType("web_gl|_WebGL2RenderingContextBase()")))(),
    VoidTo_WebGLRenderingContextBase: () => (T$8.VoidTo_WebGLRenderingContextBase = dart.constFn(dart_rti.findType("web_gl|_WebGLRenderingContextBase()")))(),
    ObjectAndObjectN__Tovoid: () => (T$8.ObjectAndObjectN__Tovoid = dart.constFn(dart_rti.findType("~(core|Object,core|Object?{detach:core|Object?})")))(),
    _BigIntImpl: () => (T$8._BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl")))(),
    String__To_BigIntImpl: () => (T$8.String__To_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|String{radix:core|int?})")))(),
    StringAndboolTo_BigIntImpl: () => (T$8.StringAndboolTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|String,core|bool)")))(),
    StringAndintAndboolTo_BigIntImplN: () => (T$8.StringAndintAndboolTo_BigIntImplN = dart.constFn(dart_rti.findType("core|_BigIntImpl?(core|String,core|int,core|bool)")))(),
    String__To_BigIntImplN: () => (T$8.String__To_BigIntImplN = dart.constFn(dart_rti.findType("core|_BigIntImpl?(core|String{radix:core|int?})")))(),
    intAndUint16ListToint: () => (T$8.intAndUint16ListToint = dart.constFn(dart_rti.findType("core|int(core|int,typed_data|Uint16List)")))(),
    Uint16ListAndintAndint__ToUint16List: () => (T$8.Uint16ListAndintAndint__ToUint16List = dart.constFn(dart_rti.findType("typed_data|Uint16List(typed_data|Uint16List,core|int,core|int,core|int)")))(),
    numTo_BigIntImpl: () => (T$8.numTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|num)")))(),
    intTo_BigIntImpl: () => (T$8.intTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|int)")))(),
    doubleTo_BigIntImpl: () => (T$8.doubleTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|double)")))(),
    VoidTo_BigIntImpl: () => (T$8.VoidTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl()")))(),
    Uint16ListAndintAndint__Toint: () => (T$8.Uint16ListAndintAndint__Toint = dart.constFn(dart_rti.findType("core|int(typed_data|Uint16List,core|int,core|int,typed_data|Uint16List)")))(),
    Uint16ListAndintAndint__Tovoid: () => (T$8.Uint16ListAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(typed_data|Uint16List,core|int,core|int,typed_data|Uint16List)")))(),
    _BigIntImplToint: () => (T$8._BigIntImplToint = dart.constFn(dart_rti.findType("core|int(core|_BigIntImpl)")))(),
    Uint16ListAndintAndUint16List__Toint: () => (T$8.Uint16ListAndintAndUint16List__Toint = dart.constFn(dart_rti.findType("core|int(typed_data|Uint16List,core|int,typed_data|Uint16List,core|int)")))(),
    Uint16ListAndintAndUint16List__Tovoid: () => (T$8.Uint16ListAndintAndUint16List__Tovoid = dart.constFn(dart_rti.findType("~(typed_data|Uint16List,core|int,typed_data|Uint16List,core|int,typed_data|Uint16List)")))(),
    _BigIntImplAndboolTo_BigIntImpl: () => (T$8._BigIntImplAndboolTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|_BigIntImpl,core|bool)")))(),
    ObjectNTo_BigIntImpl: () => (T$8.ObjectNTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|Object?)")))(),
    intAndUint16ListAndint__Tovoid: () => (T$8.intAndUint16ListAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|int,typed_data|Uint16List,core|int,typed_data|Uint16List,core|int,core|int)")))(),
    Uint16ListAndintAndUint16List__Toint$1: () => (T$8.Uint16ListAndintAndUint16List__Toint$1 = dart.constFn(dart_rti.findType("core|int(typed_data|Uint16List,core|int,typed_data|Uint16List,core|int,typed_data|Uint16List)")))(),
    intAndUint16ListAndintToint: () => (T$8.intAndUint16ListAndintToint = dart.constFn(dart_rti.findType("core|int(core|int,typed_data|Uint16List,core|int)")))(),
    _BigIntImplTo_BigIntImpl: () => (T$8._BigIntImplTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|_BigIntImpl)")))(),
    _BigIntImplTovoid: () => (T$8._BigIntImplTovoid = dart.constFn(dart_rti.findType("~(core|_BigIntImpl)")))(),
    BigIntTodouble: () => (T$8.BigIntTodouble = dart.constFn(dart_rti.findType("core|double(core|BigInt)")))(),
    ObjectNAndObjectNTo_BigIntImpl: () => (T$8.ObjectNAndObjectNTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|Object?,core|Object?)")))(),
    _BigIntImplAnd_BigIntImplAndboolTo_BigIntImpl: () => (T$8._BigIntImplAnd_BigIntImplAndboolTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(core|_BigIntImpl,core|_BigIntImpl,core|bool)")))(),
    Uint16ListN: () => (T$8.Uint16ListN = dart.constFn(dart_rti.findType("typed_data|Uint16List?")))(),
    _BigIntImplAndUint16ListToint: () => (T$8._BigIntImplAndUint16ListToint = dart.constFn(dart_rti.findType("core|int(core|_BigIntImpl,typed_data|Uint16List)")))(),
    Uint16ListAndintTo_BigIntImpl: () => (T$8.Uint16ListAndintTo_BigIntImpl = dart.constFn(dart_rti.findType("core|_BigIntImpl(typed_data|Uint16List,core|int)")))(),
    Uint16ListAndintToint: () => (T$8.Uint16ListAndintToint = dart.constFn(dart_rti.findType("core|int(typed_data|Uint16List,core|int)")))(),
    Uint16ListAndintAndUint16ListToint: () => (T$8.Uint16ListAndintAndUint16ListToint = dart.constFn(dart_rti.findType("core|int(typed_data|Uint16List,core|int,typed_data|Uint16List)")))(),
    StringAndObjectNTopragma: () => (T$8.StringAndObjectNTopragma = dart.constFn(dart_rti.findType("core|pragma(core|String[core|Object?])")))(),
    BigInt: () => (T$8.BigInt = dart.constFn(dart_rti.findType("core|BigInt")))(),
    String__ToBigInt: () => (T$8.String__ToBigInt = dart.constFn(dart_rti.findType("core|BigInt(core|String{radix:core|int?})")))(),
    String__ToBigIntN: () => (T$8.String__ToBigIntN = dart.constFn(dart_rti.findType("core|BigInt?(core|String{radix:core|int?})")))(),
    numToBigInt: () => (T$8.numToBigInt = dart.constFn(dart_rti.findType("core|BigInt(core|num)")))(),
    String__Tobool: () => (T$8.String__Tobool = dart.constFn(dart_rti.findType("core|bool(core|String{defaultValue:core|bool})")))(),
    String__Tobool$1: () => (T$8.String__Tobool$1 = dart.constFn(dart_rti.findType("core|bool(core|String{caseSensitive:core|bool})")))(),
    String__ToboolN: () => (T$8.String__ToboolN = dart.constFn(dart_rti.findType("core|bool?(core|String{caseSensitive:core|bool})")))(),
    StringNToint: () => (T$8.StringNToint = dart.constFn(dart_rti.findType("core|int(core|String?)")))(),
    FormatException: () => (T$8.FormatException = dart.constFn(dart_rti.findType("core|FormatException")))(),
    intToDateTime: () => (T$8.intToDateTime = dart.constFn(dart_rti.findType("core|DateTime(core|int)")))(),
    StringToDateTime: () => (T$8.StringToDateTime = dart.constFn(dart_rti.findType("core|DateTime(core|String)")))(),
    StringToDateTimeN: () => (T$8.StringToDateTimeN = dart.constFn(dart_rti.findType("core|DateTime?(core|String)")))(),
    DateTimeTobool: () => (T$8.DateTimeTobool = dart.constFn(dart_rti.findType("core|bool(core|DateTime)")))(),
    __ToDateTime: () => (T$8.__ToDateTime = dart.constFn(dart_rti.findType("core|DateTime({isUtc!core|bool})")))(),
    DurationToDateTime: () => (T$8.DurationToDateTime = dart.constFn(dart_rti.findType("core|DateTime(core|Duration)")))(),
    DateTimeToDuration: () => (T$8.DateTimeToDuration = dart.constFn(dart_rti.findType("core|Duration(core|DateTime)")))(),
    intAndintAndint__ToDateTimeN: () => (T$8.intAndintAndint__ToDateTimeN = dart.constFn(dart_rti.findType("core|DateTime?(core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|bool)")))(),
    Duration: () => (T$8.Duration = dart.constFn(dart_rti.findType("core|Duration")))(),
    StringAndFnTonum: () => (T$8.StringAndFnTonum = dart.constFn(dart_rti.findType("core|num(core|String[core|num(core|String)?])")))(),
    StringTonumN: () => (T$8.StringTonumN = dart.constFn(dart_rti.findType("core|num?(core|String)")))(),
    StringAndFnTodouble: () => (T$8.StringAndFnTodouble = dart.constFn(dart_rti.findType("core|double(core|String[core|double(core|String)?])")))(),
    DurationToDuration: () => (T$8.DurationToDuration = dart.constFn(dart_rti.findType("core|Duration(core|Duration)")))(),
    numToDuration: () => (T$8.numToDuration = dart.constFn(dart_rti.findType("core|Duration(core|num)")))(),
    intToDuration: () => (T$8.intToDuration = dart.constFn(dart_rti.findType("core|Duration(core|int)")))(),
    DurationTobool: () => (T$8.DurationTobool = dart.constFn(dart_rti.findType("core|bool(core|Duration)")))(),
    VoidToDuration: () => (T$8.VoidToDuration = dart.constFn(dart_rti.findType("core|Duration()")))(),
    TAndTToint: () => (T$8.TAndTToint = dart.constFn(dart_rti.findType("core|int(0^,0^)<core|Enum>")))(),
    TNAndStringNToT: () => (T$8.TNAndStringNToT = dart.constFn(dart_rti.findType("0^(0^?[core|String?])<core|Object?>")))(),
    intAnddynamicAndStringN__ToRangeError: () => (T$8.intAnddynamicAndStringN__ToRangeError = dart.constFn(dart_rti.findType("core|RangeError(core|int,@[core|String?,core|String?,core|int?])")))(),
    intAndintAndint__Toint$18: () => (T$8.intAndintAndint__Toint$18 = dart.constFn(dart_rti.findType("core|int(core|int,core|int,core|int[core|String?,core|String?])")))(),
    intAnddynamicAndStringN__Toint: () => (T$8.intAnddynamicAndStringN__Toint = dart.constFn(dart_rti.findType("core|int(core|int,@[core|String?,core|int?,core|String?])")))(),
    intAndintNAndint__Toint: () => (T$8.intAndintNAndint__Toint = dart.constFn(dart_rti.findType("core|int(core|int,core|int?,core|int[core|String?,core|String?,core|String?])")))(),
    intAndStringNAndStringNToint: () => (T$8.intAndStringNAndStringNToint = dart.constFn(dart_rti.findType("core|int(core|int[core|String?,core|String?])")))(),
    intAndint__Toint: () => (T$8.intAndint__Toint = dart.constFn(dart_rti.findType("core|int(core|int,core|int{indexable:core|Object?,message:core|String?,name:core|String?})")))(),
    SymbolAnddynamicTovoid: () => (T$8.SymbolAnddynamicTovoid = dart.constFn(dart_rti.findType("~(core|Symbol,@)")))(),
    InvocationImpl: () => (T$8.InvocationImpl = dart.constFn(dart_rti.findType("_runtime|InvocationImpl")))(),
    ObjectNAndInvocationToNoSuchMethodError: () => (T$8.ObjectNAndInvocationToNoSuchMethodError = dart.constFn(dart_rti.findType("core|NoSuchMethodError(core|Object?,core|Invocation)")))(),
    dynamicToException: () => (T$8.dynamicToException = dart.constFn(dart_rti.findType("core|Exception([@])")))(),
    MapOfSymbol$dynamicToMapOfString$dynamic: () => (T$8.MapOfSymbol$dynamicToMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>(core|Map<core|Symbol,@>)")))(),
    FunctionAndListNAndMapNOfSymbol$dynamicTodynamic: () => (T$8.FunctionAndListNAndMapNOfSymbol$dynamicTodynamic = dart.constFn(dart_rti.findType("@(core|Function,core|List<@>?[core|Map<core|Symbol,@>?])")))(),
    String__Toint: () => (T$8.String__Toint = dart.constFn(dart_rti.findType("core|int(core|String{defaultValue:core|int})")))(),
    String__Toint$1: () => (T$8.String__Toint$1 = dart.constFn(dart_rti.findType("core|int(core|String{onError:core|int(core|String)?,radix:core|int?})")))(),
    String__TointN: () => (T$8.String__TointN = dart.constFn(dart_rti.findType("core|int?(core|String{radix:core|int?})")))(),
    IterableNOfTypeToListOfType: () => (T$8.IterableNOfTypeToListOfType = dart.constFn(dart_rti.findType("core|List<core|Type>(core|Iterable<core|Type>?)")))(),
    ListNOfObjectN: () => (T$8.ListNOfObjectN = dart.constFn(dart_rti.findType("core|List<core|Object?>?")))(),
    MapNOfSymbol$ObjectN: () => (T$8.MapNOfSymbol$ObjectN = dart.constFn(dart_rti.findType("core|Map<core|Symbol,core|Object?>?")))(),
    intAndE__ToListOfE: () => (T$8.intAndE__ToListOfE = dart.constFn(dart_rti.findType("core|List<0^>(core|int,0^{growable:core|bool})<core|Object?>")))(),
    __ToListOfE$4: () => (T$8.__ToListOfE$4 = dart.constFn(dart_rti.findType("core|List<0^>({growable:core|bool})<core|Object?>")))(),
    Iterable__ToListOfE: () => (T$8.Iterable__ToListOfE = dart.constFn(dart_rti.findType("core|List<0^>(core|Iterable<@>{growable:core|bool})<core|Object?>")))(),
    IterableOfE__ToListOfE: () => (T$8.IterableOfE__ToListOfE = dart.constFn(dart_rti.findType("core|List<0^>(core|Iterable<0^>{growable:core|bool})<core|Object?>")))(),
    intAndFn__ToListOfE: () => (T$8.intAndFn__ToListOfE = dart.constFn(dart_rti.findType("core|List<0^>(core|int,0^(core|int){growable:core|bool})<core|Object?>")))(),
    IterableToListOfE: () => (T$8.IterableToListOfE = dart.constFn(dart_rti.findType("core|List<0^>(core|Iterable<@>)<core|Object?>")))(),
    ListOfSToListOfT: () => (T$8.ListOfSToListOfT = dart.constFn(dart_rti.findType("core|List<1^>(core|List<0^>)<core|Object?,core|Object?>")))(),
    ListOfTAndintAndListOfT__Tovoid: () => (T$8.ListOfTAndintAndListOfT__Tovoid = dart.constFn(dart_rti.findType("~(core|List<0^>,core|int,core|List<0^>[core|int?,core|int?])<core|Object?>")))(),
    ListOfTAndintAndIterableOfTTovoid: () => (T$8.ListOfTAndintAndIterableOfTTovoid = dart.constFn(dart_rti.findType("~(core|List<0^>,core|int,core|Iterable<0^>)<core|Object?>")))(),
    MapToMapOfK$V: () => (T$8.MapToMapOfK$V = dart.constFn(dart_rti.findType("core|Map<0^,1^>(core|Map<@,@>)<core|Object?,core|Object?>")))(),
    MapOfK$VToMapOfK$V: () => (T$8.MapOfK$VToMapOfK$V = dart.constFn(dart_rti.findType("core|Map<0^,1^>(core|Map<0^,1^>)<core|Object?,core|Object?>")))(),
    Iterable__ToMapOfK$V: () => (T$8.Iterable__ToMapOfK$V = dart.constFn(dart_rti.findType("core|Map<0^,1^>(core|Iterable<@>{key:0^(@)?,value:1^(@)?})<core|Object?,core|Object?>")))(),
    IterableOfKAndIterableOfVToMapOfK$V: () => (T$8.IterableOfKAndIterableOfVToMapOfK$V = dart.constFn(dart_rti.findType("core|Map<0^,1^>(core|Iterable<0^>,core|Iterable<1^>)<core|Object?,core|Object?>")))(),
    MapOfK$VToMapOfK2$V2: () => (T$8.MapOfK$VToMapOfK2$V2 = dart.constFn(dart_rti.findType("core|Map<2^,3^>(core|Map<0^,1^>)<core|Object?,core|Object?,core|Object?,core|Object?>")))(),
    IterableOfMapEntryOfK$VToMapOfK$V: () => (T$8.IterableOfMapEntryOfK$VToMapOfK$V = dart.constFn(dart_rti.findType("core|Map<0^,1^>(core|Iterable<core|MapEntry<0^,1^>>)<core|Object?,core|Object?>")))(),
    KAndVToMapEntryOfK$V: () => (T$8.KAndVToMapEntryOfK$V = dart.constFn(dart_rti.findType("core|MapEntry<0^,1^>(0^,1^)<core|Object?,core|Object?>")))(),
    String__ToRegExp: () => (T$8.String__ToRegExp = dart.constFn(dart_rti.findType("core|RegExp(core|String{caseSensitive:core|bool,dotAll:core|bool,multiLine:core|bool,unicode:core|bool})")))(),
    IterableToSetOfE: () => (T$8.IterableToSetOfE = dart.constFn(dart_rti.findType("core|Set<0^>(core|Iterable<@>)<core|Object?>")))(),
    IterableOfEToSetOfE: () => (T$8.IterableOfEToSetOfE = dart.constFn(dart_rti.findType("core|Set<0^>(core|Iterable<0^>)<core|Object?>")))(),
    SetOfS__ToSetOfT: () => (T$8.SetOfS__ToSetOfT = dart.constFn(dart_rti.findType("core|Set<1^>(core|Set<0^>{newSet:core|Set<0^>()<core|Object?>?})<core|Object?,core|Object?>")))(),
    StringToStackTrace: () => (T$8.StringToStackTrace = dart.constFn(dart_rti.findType("core|StackTrace(core|String)")))(),
    _StringStackTrace: () => (T$8._StringStackTrace = dart.constFn(dart_rti.findType("core|_StringStackTrace")))(),
    JSArrayOfint: () => (T$8.JSArrayOfint = dart.constFn(dart_rti.findType("_interceptors|JSArray<core|int>")))(),
    JSArrayOfintAndintAndintNToString: () => (T$8.JSArrayOfintAndintAndintNToString = dart.constFn(dart_rti.findType("core|String(_interceptors|JSArray<core|int>,core|int,core|int?)")))(),
    NativeUint8ListAndintAndintNToString: () => (T$8.NativeUint8ListAndintAndintNToString = dart.constFn(dart_rti.findType("core|String(_native_typed_data|NativeUint8List,core|int,core|int?)")))(),
    IterableOfintAndintAndintNToString: () => (T$8.IterableOfintAndintAndintNToString = dart.constFn(dart_rti.findType("core|String(core|Iterable<core|int>,core|int,core|int?)")))(),
    IterableOfintAndintAndintNToString$1: () => (T$8.IterableOfintAndintAndintNToString$1 = dart.constFn(dart_rti.findType("core|String(core|Iterable<core|int>[core|int,core|int?])")))(),
    String__ToString$1: () => (T$8.String__ToString$1 = dart.constFn(dart_rti.findType("core|String(core|String{defaultValue:core|String})")))(),
    RuneIterator: () => (T$8.RuneIterator = dart.constFn(dart_rti.findType("core|RuneIterator")))(),
    intTovoid$1: () => (T$8.intTovoid$1 = dart.constFn(dart_rti.findType("~([core|int])")))(),
    StringAndIterableAndStringToString: () => (T$8.StringAndIterableAndStringToString = dart.constFn(dart_rti.findType("core|String(core|String,core|Iterable<@>,core|String)")))(),
    StringToSymbol: () => (T$8.StringToSymbol = dart.constFn(dart_rti.findType("core|Symbol(core|String)")))(),
    MapOfString$StringAndStringToMapOfString$String: () => (T$8.MapOfString$StringAndStringToMapOfString$String = dart.constFn(dart_rti.findType("core|Map<core|String,core|String>(core|Map<core|String,core|String>,core|String)")))(),
    StringAndintTovoid: () => (T$8.StringAndintTovoid = dart.constFn(dart_rti.findType("~(core|String,core|int)")))(),
    StringAndintNTovoid: () => (T$8.StringAndintNTovoid = dart.constFn(dart_rti.findType("~(core|String,core|int?)")))(),
    __ToUri: () => (T$8.__ToUri = dart.constFn(dart_rti.findType("core|Uri({fragment:core|String?,host:core|String?,path:core|String?,pathSegments:core|Iterable<core|String>?,port:core|int?,query:core|String?,queryParameters:core|Map<core|String,@>?,scheme:core|String?,userInfo:core|String?})")))(),
    StringAndStringAndMapNOfString$dynamicToUri: () => (T$8.StringAndStringAndMapNOfString$dynamicToUri = dart.constFn(dart_rti.findType("core|Uri(core|String[core|String,core|Map<core|String,@>?])")))(),
    String__ToUri: () => (T$8.String__ToUri = dart.constFn(dart_rti.findType("core|Uri(core|String{windows:core|bool?})")))(),
    String__ToUri$1: () => (T$8.String__ToUri$1 = dart.constFn(dart_rti.findType("core|Uri(core|String{base64:core|bool,encoding:convert|Encoding?,mimeType:core|String?,parameters:core|Map<core|String,core|String>?})")))(),
    ListOfint__ToUri: () => (T$8.ListOfint__ToUri = dart.constFn(dart_rti.findType("core|Uri(core|List<core|int>{mimeType:core|String,parameters:core|Map<core|String,core|String>?,percentEncoded:core|bool})")))(),
    StringAndintAndintNToUri: () => (T$8.StringAndintAndintNToUri = dart.constFn(dart_rti.findType("core|Uri(core|String[core|int,core|int?])")))(),
    StringAndintAndintNToUriN: () => (T$8.StringAndintAndintNToUriN = dart.constFn(dart_rti.findType("core|Uri?(core|String[core|int,core|int?])")))(),
    String__ToString$2: () => (T$8.String__ToString$2 = dart.constFn(dart_rti.findType("core|String(core|String{encoding:convert|Encoding})")))(),
    String__ToMapOfString$String: () => (T$8.String__ToMapOfString$String = dart.constFn(dart_rti.findType("core|Map<core|String,core|String>(core|String{encoding:convert|Encoding})")))(),
    StringAndintAndintToListOfint: () => (T$8.StringAndintAndintToListOfint = dart.constFn(dart_rti.findType("core|List<core|int>(core|String,core|int,core|int)")))(),
    StringAndintAndintNToListOfint: () => (T$8.StringAndintAndintNToListOfint = dart.constFn(dart_rti.findType("core|List<core|int>(core|String[core|int,core|int?])")))(),
    _Uri: () => (T$8._Uri = dart.constFn(dart_rti.findType("core|_Uri")))(),
    ListLOfStringL: () => (T$8.ListLOfStringL = dart.constFn(dart_rti.findType("core|List<core|String*>*")))(),
    StringAndListOfStringToListOfString: () => (T$8.StringAndListOfStringToListOfString = dart.constFn(dart_rti.findType("core|List<core|String>(core|String,core|List<core|String>)")))(),
    _PlatformUri: () => (T$8._PlatformUri = dart.constFn(dart_rti.findType("core|_PlatformUri")))(),
    MapOfString$ListOfString: () => (T$8.MapOfString$ListOfString = dart.constFn(dart_rti.findType("core|Map<core|String,core|List<core|String>>")))(),
    StringAndintAndint__To_Uri: () => (T$8.StringAndintAndint__To_Uri = dart.constFn(dart_rti.findType("core|_Uri(core|String,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|int,core|String?)")))(),
    __To_Uri: () => (T$8.__To_Uri = dart.constFn(dart_rti.findType("core|_Uri({fragment:core|String?,host:core|String?,path:core|String?,pathSegments:core|Iterable<core|String>?,port:core|int?,query:core|String?,queryParameters:core|Map<core|String,@>?,scheme:core|String?,userInfo:core|String?})")))(),
    StringAndStringAndMapNOfString$dynamicTo_Uri: () => (T$8.StringAndStringAndMapNOfString$dynamicTo_Uri = dart.constFn(dart_rti.findType("core|_Uri(core|String[core|String,core|Map<core|String,@>?])")))(),
    StringAndintAndStringToNever: () => (T$8.StringAndintAndStringToNever = dart.constFn(dart_rti.findType("0&(core|String,core|int,core|String)")))(),
    StringAndStringNAndString__To_Uri: () => (T$8.StringAndStringNAndString__To_Uri = dart.constFn(dart_rti.findType("core|_Uri(core|String,core|String?,core|String,core|Map<core|String,@>?)")))(),
    String__To_Uri: () => (T$8.String__To_Uri = dart.constFn(dart_rti.findType("core|_Uri(core|String{windows:core|bool?})")))(),
    ListOfStringAndboolTovoid: () => (T$8.ListOfStringAndboolTovoid = dart.constFn(dart_rti.findType("~(core|List<core|String>,core|bool)")))(),
    ListOfStringAndboolAndintTovoid: () => (T$8.ListOfStringAndboolAndintTovoid = dart.constFn(dart_rti.findType("~(core|List<core|String>,core|bool[core|int])")))(),
    intAndboolTovoid: () => (T$8.intAndboolTovoid = dart.constFn(dart_rti.findType("~(core|int,core|bool)")))(),
    StringAndboolToUri: () => (T$8.StringAndboolToUri = dart.constFn(dart_rti.findType("core|Uri(core|String,core|bool)")))(),
    StringAndboolTodynamic: () => (T$8.StringAndboolTodynamic = dart.constFn(dart_rti.findType("@(core|String,core|bool)")))(),
    StringNToMapOfString$ListOfString: () => (T$8.StringNToMapOfString$ListOfString = dart.constFn(dart_rti.findType("core|Map<core|String,core|List<core|String>>(core|String?)")))(),
    intNAndStringTointN: () => (T$8.intNAndStringTointN = dart.constFn(dart_rti.findType("core|int?(core|int?,core|String)")))(),
    StringNAndintAndint__ToStringN: () => (T$8.StringNAndintAndint__ToStringN = dart.constFn(dart_rti.findType("core|String?(core|String?,core|int,core|int,core|bool)")))(),
    StringAndintAndint__ToString: () => (T$8.StringAndintAndint__ToString = dart.constFn(dart_rti.findType("core|String(core|String,core|int,core|int[core|String])")))(),
    StringNAndintAndintToString: () => (T$8.StringNAndintAndintToString = dart.constFn(dart_rti.findType("core|String(core|String?,core|int,core|int)")))(),
    StringNAndintAndint__ToString: () => (T$8.StringNAndintAndint__ToString = dart.constFn(dart_rti.findType("core|String(core|String?,core|int,core|int,core|Iterable<core|String>?,core|String,core|bool)")))(),
    StringAndStringAndboolToString: () => (T$8.StringAndStringAndboolToString = dart.constFn(dart_rti.findType("core|String(core|String,core|String,core|bool)")))(),
    StringNAndintAndint__ToStringN$1: () => (T$8.StringNAndintAndint__ToStringN$1 = dart.constFn(dart_rti.findType("core|String?(core|String?,core|int,core|int,core|Map<core|String,@>?)")))(),
    MapOfString$dynamicToString: () => (T$8.MapOfString$dynamicToString = dart.constFn(dart_rti.findType("core|String(core|Map<core|String,@>)")))(),
    StringNAndintAndintToStringN: () => (T$8.StringNAndintAndintToStringN = dart.constFn(dart_rti.findType("core|String?(core|String?,core|int,core|int)")))(),
    StringAndintAndboolToStringN: () => (T$8.StringAndintAndboolToStringN = dart.constFn(dart_rti.findType("core|String?(core|String,core|int,core|bool)")))(),
    StringAndintAndint__ToString$1: () => (T$8.StringAndintAndint__ToString$1 = dart.constFn(dart_rti.findType("core|String(core|String,core|int,core|int,core|List<core|int>{escapeDelimiters:core|bool,replaceBackslash:core|bool})")))(),
    StringAndintAndint__ToStringN: () => (T$8.StringAndintAndint__ToStringN = dart.constFn(dart_rti.findType("core|String?(core|String,core|int,core|int,core|List<core|int>{escapeDelimiters:core|bool,replaceBackslash:core|bool})")))(),
    StringAndboolToString: () => (T$8.StringAndboolToString = dart.constFn(dart_rti.findType("core|String(core|String,core|bool)")))(),
    StringToUri: () => (T$8.StringToUri = dart.constFn(dart_rti.findType("core|Uri(core|String)")))(),
    UriAndStringToint: () => (T$8.UriAndStringToint = dart.constFn(dart_rti.findType("core|int(core|Uri,core|String)")))(),
    UriToUri: () => (T$8.UriToUri = dart.constFn(dart_rti.findType("core|Uri(core|Uri)")))(),
    __ToString$1: () => (T$8.__ToString$1 = dart.constFn(dart_rti.findType("core|String({windows:core|bool?})")))(),
    UriToString: () => (T$8.UriToString = dart.constFn(dart_rti.findType("core|String(core|Uri)")))(),
    UriDataN: () => (T$8.UriDataN = dart.constFn(dart_rti.findType("core|UriData?")))(),
    String__ToMapOfString$ListOfString: () => (T$8.String__ToMapOfString$ListOfString = dart.constFn(dart_rti.findType("core|Map<core|String,core|List<core|String>>(core|String{encoding:convert|Encoding})")))(),
    ListOfintAndStringAndEncoding__ToString: () => (T$8.ListOfintAndStringAndEncoding__ToString = dart.constFn(dart_rti.findType("core|String(core|List<core|int>,core|String,convert|Encoding,core|bool)")))(),
    StringAndintAndint__ToString$2: () => (T$8.StringAndintAndint__ToString$2 = dart.constFn(dart_rti.findType("core|String(core|String,core|int,core|int,convert|Encoding,core|bool)")))(),
    MapNOfString$String: () => (T$8.MapNOfString$String = dart.constFn(dart_rti.findType("core|Map<core|String,core|String>?")))(),
    MapNOfString$ListOfString: () => (T$8.MapNOfString$ListOfString = dart.constFn(dart_rti.findType("core|Map<core|String,core|List<core|String>>?")))(),
    String__ToUriData: () => (T$8.String__ToUriData = dart.constFn(dart_rti.findType("core|UriData(core|String{base64:core|bool,encoding:convert|Encoding?,mimeType:core|String?,parameters:core|Map<core|String,core|String>?})")))(),
    ListOfint__ToUriData: () => (T$8.ListOfint__ToUriData = dart.constFn(dart_rti.findType("core|UriData(core|List<core|int>{mimeType:core|String,parameters:core|Map<core|String,core|String>?,percentEncoded:core|bool})")))(),
    UriToUriData: () => (T$8.UriToUriData = dart.constFn(dart_rti.findType("core|UriData(core|Uri)")))(),
    StringNAndStringNAndMapNOfString$String__Tovoid: () => (T$8.StringNAndStringNAndMapNOfString$String__Tovoid = dart.constFn(dart_rti.findType("~(core|String?,core|String?,core|Map<core|String,core|String>?,core|StringBuffer,core|List<core|int>?)")))(),
    StringToUriData: () => (T$8.StringToUriData = dart.constFn(dart_rti.findType("core|UriData(core|String)")))(),
    EncodingTobool: () => (T$8.EncodingTobool = dart.constFn(dart_rti.findType("core|bool(convert|Encoding)")))(),
    __ToString$2: () => (T$8.__ToString$2 = dart.constFn(dart_rti.findType("core|String({encoding:convert|Encoding?})")))(),
    StringAndintAndUriNToUriData: () => (T$8.StringAndintAndUriNToUriData = dart.constFn(dart_rti.findType("core|UriData(core|String,core|int,core|Uri?)")))(),
    ListOfintAndListOfintAndStringSinkTovoid: () => (T$8.ListOfintAndListOfintAndStringSinkTovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>,core|List<core|int>,core|StringSink)")))(),
    _SimpleUri: () => (T$8._SimpleUri = dart.constFn(dart_rti.findType("core|_SimpleUri")))(),
    _SimpleUriToint: () => (T$8._SimpleUriToint = dart.constFn(dart_rti.findType("core|int(core|_SimpleUri)")))(),
    _SimpleUriAnd_SimpleUriToUri: () => (T$8._SimpleUriAnd_SimpleUriToUri = dart.constFn(dart_rti.findType("core|Uri(core|_SimpleUri,core|_SimpleUri)")))(),
    UriData: () => (T$8.UriData = dart.constFn(dart_rti.findType("core|UriData")))(),
    TToWeakReferenceOfT: () => (T$8.TToWeakReferenceOfT = dart.constFn(dart_rti.findType("core|WeakReference<0^>(0^)<core|Object>")))(),
    FnToFinalizerOfT: () => (T$8.FnToFinalizerOfT = dart.constFn(dart_rti.findType("core|Finalizer<0^>(~(0^))<core|Object?>")))(),
    intAndintAndint__ToDateTime: () => (T$8.intAndintAndint__ToDateTime = dart.constFn(dart_rti.findType("core|DateTime(core|int[core|int,core|int,core|int,core|int,core|int,core|int,core|int])")))(),
    __ToDateTime$1: () => (T$8.__ToDateTime$1 = dart.constFn(dart_rti.findType("core|DateTime({day:core|int?,hour:core|int?,isUtc:core|bool?,microsecond:core|int?,millisecond:core|int?,minute:core|int?,month:core|int?,second:core|int?,year:core|int?})")))(),
    dynamicAnddynamicToUint8List: () => (T$8.dynamicAnddynamicToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(@,@)")))(),
    Uint8ListAndStringAndintTovoid: () => (T$8.Uint8ListAndStringAndintTovoid = dart.constFn(dart_rti.findType("~(typed_data|Uint8List,core|String,core|int)")))(),
    ListOfPointMode: () => (T$8.ListOfPointMode = dart.constFn(dart_rti.findType("core|List<ui|PointMode>")))(),
    PointMode: () => (T$8.PointMode = dart.constFn(dart_rti.findType("ui|PointMode")))(),
    PointModeL: () => (T$8.PointModeL = dart.constFn(dart_rti.findType("ui|PointMode*")))(),
    ListOfClipOp: () => (T$8.ListOfClipOp = dart.constFn(dart_rti.findType("core|List<ui|ClipOp>")))(),
    ClipOp: () => (T$8.ClipOp = dart.constFn(dart_rti.findType("ui|ClipOp")))(),
    ClipOpL: () => (T$8.ClipOpL = dart.constFn(dart_rti.findType("ui|ClipOp*")))(),
    ListOfVertexMode: () => (T$8.ListOfVertexMode = dart.constFn(dart_rti.findType("core|List<ui|VertexMode>")))(),
    VertexMode: () => (T$8.VertexMode = dart.constFn(dart_rti.findType("ui|VertexMode")))(),
    VertexModeL: () => (T$8.VertexModeL = dart.constFn(dart_rti.findType("ui|VertexMode*")))(),
    VertexModeAndListOfOffset__ToVertices: () => (T$8.VertexModeAndListOfOffset__ToVertices = dart.constFn(dart_rti.findType("ui|Vertices(ui|VertexMode,core|List<ui|Offset>{colors:core|List<ui|Color>?,indices:core|List<core|int>?,textureCoordinates:core|List<ui|Offset>?})")))(),
    VertexModeAndFloat32List__ToVertices: () => (T$8.VertexModeAndFloat32List__ToVertices = dart.constFn(dart_rti.findType("ui|Vertices(ui|VertexMode,typed_data|Float32List{colors:typed_data|Int32List?,indices:typed_data|Uint16List?,textureCoordinates:typed_data|Float32List?})")))(),
    VoidToPictureRecorder: () => (T$8.VoidToPictureRecorder = dart.constFn(dart_rti.findType("ui|PictureRecorder()")))(),
    PictureRecorderAndRectNToCanvas: () => (T$8.PictureRecorderAndRectNToCanvas = dart.constFn(dart_rti.findType("ui|Canvas(ui|PictureRecorder[ui|Rect?])")))(),
    PictureToNvoid: () => (T$8.PictureToNvoid = dart.constFn(dart_rti.findType("~(ui|Picture)?")))(),
    ListOfPathFillType: () => (T$8.ListOfPathFillType = dart.constFn(dart_rti.findType("core|List<ui|PathFillType>")))(),
    PathFillType: () => (T$8.PathFillType = dart.constFn(dart_rti.findType("ui|PathFillType")))(),
    PathFillTypeL: () => (T$8.PathFillTypeL = dart.constFn(dart_rti.findType("ui|PathFillType*")))(),
    ListOfPathOperation: () => (T$8.ListOfPathOperation = dart.constFn(dart_rti.findType("core|List<ui|PathOperation>")))(),
    PathOperation: () => (T$8.PathOperation = dart.constFn(dart_rti.findType("ui|PathOperation")))(),
    PathOperationL: () => (T$8.PathOperationL = dart.constFn(dart_rti.findType("ui|PathOperation*")))(),
    ByteDataNTovoid: () => (T$8.ByteDataNTovoid = dart.constFn(dart_rti.findType("~(typed_data|ByteData?)")))(),
    ByteDataNAndFnTovoid: () => (T$8.ByteDataNAndFnTovoid = dart.constFn(dart_rti.findType("~(typed_data|ByteData?,~(typed_data|ByteData?))")))(),
    _StoredMessage: () => (T$8._StoredMessage = dart.constFn(dart_rti.findType("ui|_StoredMessage")))(),
    _StoredMessageTobool: () => (T$8._StoredMessageTobool = dart.constFn(dart_rti.findType("core|bool(ui|_StoredMessage)")))(),
    VoidTo_StoredMessage: () => (T$8.VoidTo_StoredMessage = dart.constFn(dart_rti.findType("ui|_StoredMessage()")))(),
    FnTovoid$35: () => (T$8.FnTovoid$35 = dart.constFn(dart_rti.findType("~(~(typed_data|ByteData?,~(typed_data|ByteData?)))")))(),
    ListQueueOf_StoredMessage: () => (T$8.ListQueueOf_StoredMessage = dart.constFn(dart_rti.findType("collection|ListQueue<ui|_StoredMessage>")))(),
    _ChannelCallbackRecordN: () => (T$8._ChannelCallbackRecordN = dart.constFn(dart_rti.findType("ui|_ChannelCallbackRecord?")))(),
    _Channel: () => (T$8._Channel = dart.constFn(dart_rti.findType("ui|_Channel")))(),
    VoidTo_Channel: () => (T$8.VoidTo_Channel = dart.constFn(dart_rti.findType("ui|_Channel()")))(),
    StringAndByteDataNAndFnTovoid: () => (T$8.StringAndByteDataNAndFnTovoid = dart.constFn(dart_rti.findType("~(core|String,typed_data|ByteData?,~(typed_data|ByteData?))")))(),
    StringAndFnTovoid$1: () => (T$8.StringAndFnTovoid$1 = dart.constFn(dart_rti.findType("~(core|String,~(typed_data|ByteData?,~(typed_data|ByteData?)))")))(),
    StringAndFnToFutureOfvoid: () => (T$8.StringAndFnToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(core|String,async|Future<~>(typed_data|ByteData?,~(typed_data|ByteData?)))")))(),
    ByteDataTovoid: () => (T$8.ByteDataTovoid = dart.constFn(dart_rti.findType("~(typed_data|ByteData)")))(),
    StringAndboolTovoid: () => (T$8.StringAndboolTovoid = dart.constFn(dart_rti.findType("~(core|String,core|bool)")))(),
    String__Tovoid$8: () => (T$8.String__Tovoid$8 = dart.constFn(dart_rti.findType("~(core|String{listening!core|bool})")))(),
    MapOfString$_Channel: () => (T$8.MapOfString$_Channel = dart.constFn(dart_rti.findType("core|Map<core|String,ui|_Channel>")))(),
    VoidToSceneBuilder: () => (T$8.VoidToSceneBuilder = dart.constFn(dart_rti.findType("ui|SceneBuilder()")))(),
    OffsetBase: () => (T$8.OffsetBase = dart.constFn(dart_rti.findType("ui|OffsetBase")))(),
    OffsetBaseTobool: () => (T$8.OffsetBaseTobool = dart.constFn(dart_rti.findType("core|bool(ui|OffsetBase)")))(),
    Offset: () => (T$8.Offset = dart.constFn(dart_rti.findType("ui|Offset")))(),
    doubleAnddoubleToOffset: () => (T$8.doubleAnddoubleToOffset = dart.constFn(dart_rti.findType("ui|Offset(core|double[core|double])")))(),
    doubleAnddoubleToOffset$1: () => (T$8.doubleAnddoubleToOffset$1 = dart.constFn(dart_rti.findType("ui|Offset(core|double,core|double)")))(),
    VoidToOffset: () => (T$8.VoidToOffset = dart.constFn(dart_rti.findType("ui|Offset()")))(),
    OffsetToOffset: () => (T$8.OffsetToOffset = dart.constFn(dart_rti.findType("ui|Offset(ui|Offset)")))(),
    doubleToOffset: () => (T$8.doubleToOffset = dart.constFn(dart_rti.findType("ui|Offset(core|double)")))(),
    SizeToRect: () => (T$8.SizeToRect = dart.constFn(dart_rti.findType("ui|Rect(ui|Size)")))(),
    OffsetNAndOffsetNAnddoubleToOffsetN: () => (T$8.OffsetNAndOffsetNAnddoubleToOffsetN = dart.constFn(dart_rti.findType("ui|Offset?(ui|Offset?,ui|Offset?,core|double)")))(),
    Size: () => (T$8.Size = dart.constFn(dart_rti.findType("ui|Size")))(),
    OffsetBaseToOffsetBase: () => (T$8.OffsetBaseToOffsetBase = dart.constFn(dart_rti.findType("ui|OffsetBase(ui|OffsetBase)")))(),
    OffsetToSize: () => (T$8.OffsetToSize = dart.constFn(dart_rti.findType("ui|Size(ui|Offset)")))(),
    doubleToSize: () => (T$8.doubleToSize = dart.constFn(dart_rti.findType("ui|Size(core|double)")))(),
    OffsetTobool: () => (T$8.OffsetTobool = dart.constFn(dart_rti.findType("core|bool(ui|Offset)")))(),
    SizeNAndSizeNAnddoubleToSizeN: () => (T$8.SizeNAndSizeNAnddoubleToSizeN = dart.constFn(dart_rti.findType("ui|Size?(ui|Size?,ui|Size?,core|double)")))(),
    Rect: () => (T$8.Rect = dart.constFn(dart_rti.findType("ui|Rect")))(),
    OffsetToRect: () => (T$8.OffsetToRect = dart.constFn(dart_rti.findType("ui|Rect(ui|Offset)")))(),
    doubleAnddoubleToRect: () => (T$8.doubleAnddoubleToRect = dart.constFn(dart_rti.findType("ui|Rect(core|double,core|double)")))(),
    doubleToRect: () => (T$8.doubleToRect = dart.constFn(dart_rti.findType("ui|Rect(core|double)")))(),
    RectToRect: () => (T$8.RectToRect = dart.constFn(dart_rti.findType("ui|Rect(ui|Rect)")))(),
    RectTobool: () => (T$8.RectTobool = dart.constFn(dart_rti.findType("core|bool(ui|Rect)")))(),
    RectNAndRectNAnddoubleToRectN: () => (T$8.RectNAndRectNAnddoubleToRectN = dart.constFn(dart_rti.findType("ui|Rect?(ui|Rect?,ui|Rect?,core|double)")))(),
    Radius: () => (T$8.Radius = dart.constFn(dart_rti.findType("ui|Radius")))(),
    __ToRadius: () => (T$8.__ToRadius = dart.constFn(dart_rti.findType("ui|Radius({maximum:ui|Radius?,minimum:ui|Radius?})")))(),
    __ToRadius$1: () => (T$8.__ToRadius$1 = dart.constFn(dart_rti.findType("ui|Radius({maximumX:core|double?,maximumY:core|double?,minimumX:core|double?,minimumY:core|double?})")))(),
    VoidToRadius: () => (T$8.VoidToRadius = dart.constFn(dart_rti.findType("ui|Radius()")))(),
    RadiusToRadius: () => (T$8.RadiusToRadius = dart.constFn(dart_rti.findType("ui|Radius(ui|Radius)")))(),
    doubleToRadius: () => (T$8.doubleToRadius = dart.constFn(dart_rti.findType("ui|Radius(core|double)")))(),
    RadiusNAndRadiusNAnddoubleToRadiusN: () => (T$8.RadiusNAndRadiusNAnddoubleToRadiusN = dart.constFn(dart_rti.findType("ui|Radius?(ui|Radius?,ui|Radius?,core|double)")))(),
    RRect: () => (T$8.RRect = dart.constFn(dart_rti.findType("ui|RRect")))(),
    OffsetToRRect: () => (T$8.OffsetToRRect = dart.constFn(dart_rti.findType("ui|RRect(ui|Offset)")))(),
    doubleToRRect: () => (T$8.doubleToRRect = dart.constFn(dart_rti.findType("ui|RRect(core|double)")))(),
    doubleAnddoubleAnddouble__Todouble: () => (T$8.doubleAnddoubleAnddouble__Todouble = dart.constFn(dart_rti.findType("core|double(core|double,core|double,core|double,core|double)")))(),
    VoidToRRect: () => (T$8.VoidToRRect = dart.constFn(dart_rti.findType("ui|RRect()")))(),
    RRectNAndRRectNAnddoubleToRRectN: () => (T$8.RRectNAndRRectNAnddoubleToRRectN = dart.constFn(dart_rti.findType("ui|RRect?(ui|RRect?,ui|RRect?,core|double)")))(),
    __ToRSTransform: () => (T$8.__ToRSTransform = dart.constFn(dart_rti.findType("ui|RSTransform({anchorX!core|double,anchorY!core|double,rotation!core|double,scale!core|double,translateX!core|double,translateY!core|double})")))(),
    intAndObjectNToint: () => (T$8.intAndObjectNToint = dart.constFn(dart_rti.findType("core|int(core|int,core|Object?)")))(),
    ListOfKeyEventType: () => (T$8.ListOfKeyEventType = dart.constFn(dart_rti.findType("core|List<ui|KeyEventType>")))(),
    KeyEventType: () => (T$8.KeyEventType = dart.constFn(dart_rti.findType("ui|KeyEventType")))(),
    KeyEventTypeL: () => (T$8.KeyEventTypeL = dart.constFn(dart_rti.findType("ui|KeyEventType*")))(),
    ListOfKeyEventDeviceType: () => (T$8.ListOfKeyEventDeviceType = dart.constFn(dart_rti.findType("core|List<ui|KeyEventDeviceType>")))(),
    KeyEventDeviceType: () => (T$8.KeyEventDeviceType = dart.constFn(dart_rti.findType("ui|KeyEventDeviceType")))(),
    KeyEventDeviceTypeL: () => (T$8.KeyEventDeviceTypeL = dart.constFn(dart_rti.findType("ui|KeyEventDeviceType*")))(),
    VoidToStringN: () => (T$8.VoidToStringN = dart.constFn(dart_rti.findType("core|String?()")))(),
    Color: () => (T$8.Color = dart.constFn(dart_rti.findType("ui|Color")))(),
    intToColor: () => (T$8.intToColor = dart.constFn(dart_rti.findType("ui|Color(core|int)")))(),
    doubleToColor: () => (T$8.doubleToColor = dart.constFn(dart_rti.findType("ui|Color(core|double)")))(),
    doubleTodouble: () => (T$8.doubleTodouble = dart.constFn(dart_rti.findType("core|double(core|double)")))(),
    ColorNAndColorNAnddoubleToColorN: () => (T$8.ColorNAndColorNAnddoubleToColorN = dart.constFn(dart_rti.findType("ui|Color?(ui|Color?,ui|Color?,core|double)")))(),
    ColorAndColorToColor: () => (T$8.ColorAndColorToColor = dart.constFn(dart_rti.findType("ui|Color(ui|Color,ui|Color)")))(),
    doubleToint: () => (T$8.doubleToint = dart.constFn(dart_rti.findType("core|int(core|double)")))(),
    ListOfStrokeCap: () => (T$8.ListOfStrokeCap = dart.constFn(dart_rti.findType("core|List<ui|StrokeCap>")))(),
    StrokeCap: () => (T$8.StrokeCap = dart.constFn(dart_rti.findType("ui|StrokeCap")))(),
    StrokeCapL: () => (T$8.StrokeCapL = dart.constFn(dart_rti.findType("ui|StrokeCap*")))(),
    ListOfStrokeJoin: () => (T$8.ListOfStrokeJoin = dart.constFn(dart_rti.findType("core|List<ui|StrokeJoin>")))(),
    StrokeJoin: () => (T$8.StrokeJoin = dart.constFn(dart_rti.findType("ui|StrokeJoin")))(),
    StrokeJoinL: () => (T$8.StrokeJoinL = dart.constFn(dart_rti.findType("ui|StrokeJoin*")))(),
    ListOfPaintingStyle: () => (T$8.ListOfPaintingStyle = dart.constFn(dart_rti.findType("core|List<ui|PaintingStyle>")))(),
    PaintingStyle: () => (T$8.PaintingStyle = dart.constFn(dart_rti.findType("ui|PaintingStyle")))(),
    PaintingStyleL: () => (T$8.PaintingStyleL = dart.constFn(dart_rti.findType("ui|PaintingStyle*")))(),
    ListOfBlendMode: () => (T$8.ListOfBlendMode = dart.constFn(dart_rti.findType("core|List<ui|BlendMode>")))(),
    BlendMode: () => (T$8.BlendMode = dart.constFn(dart_rti.findType("ui|BlendMode")))(),
    BlendModeL: () => (T$8.BlendModeL = dart.constFn(dart_rti.findType("ui|BlendMode*")))(),
    ListOfClip: () => (T$8.ListOfClip = dart.constFn(dart_rti.findType("core|List<ui|Clip>")))(),
    Clip: () => (T$8.Clip = dart.constFn(dart_rti.findType("ui|Clip")))(),
    ClipL: () => (T$8.ClipL = dart.constFn(dart_rti.findType("ui|Clip*")))(),
    VoidToPaint: () => (T$8.VoidToPaint = dart.constFn(dart_rti.findType("ui|Paint()")))(),
    PaintToPaint: () => (T$8.PaintToPaint = dart.constFn(dart_rti.findType("ui|Paint(ui|Paint)")))(),
    OffsetAndOffsetAndListOfColor__ToGradient: () => (T$8.OffsetAndOffsetAndListOfColor__ToGradient = dart.constFn(dart_rti.findType("ui|Gradient(ui|Offset,ui|Offset,core|List<ui|Color>[core|List<core|double>?,ui|TileMode,typed_data|Float64List?])")))(),
    OffsetAnddoubleAndListOfColor__ToGradient: () => (T$8.OffsetAnddoubleAndListOfColor__ToGradient = dart.constFn(dart_rti.findType("ui|Gradient(ui|Offset,core|double,core|List<ui|Color>[core|List<core|double>?,ui|TileMode,typed_data|Float64List?,ui|Offset?,core|double])")))(),
    OffsetAndListOfColorAndListNOfdouble__ToGradient: () => (T$8.OffsetAndListOfColorAndListNOfdouble__ToGradient = dart.constFn(dart_rti.findType("ui|Gradient(ui|Offset,core|List<ui|Color>[core|List<core|double>?,ui|TileMode,core|double,core|double,typed_data|Float64List?])")))(),
    VoidToImage: () => (T$8.VoidToImage = dart.constFn(dart_rti.findType("ui|Image()")))(),
    ImageTobool: () => (T$8.ImageTobool = dart.constFn(dart_rti.findType("core|bool(ui|Image)")))(),
    VoidToListNOfStackTrace: () => (T$8.VoidToListNOfStackTrace = dart.constFn(dart_rti.findType("core|List<core|StackTrace>?()")))(),
    ColorSpace: () => (T$8.ColorSpace = dart.constFn(dart_rti.findType("ui|ColorSpace")))(),
    ImageToNvoid: () => (T$8.ImageToNvoid = dart.constFn(dart_rti.findType("~(ui|Image)?")))(),
    ColorAndBlendModeToColorFilter: () => (T$8.ColorAndBlendModeToColorFilter = dart.constFn(dart_rti.findType("ui|ColorFilter(ui|Color,ui|BlendMode)")))(),
    ListOfdoubleToColorFilter: () => (T$8.ListOfdoubleToColorFilter = dart.constFn(dart_rti.findType("ui|ColorFilter(core|List<core|double>)")))(),
    VoidToColorFilter: () => (T$8.VoidToColorFilter = dart.constFn(dart_rti.findType("ui|ColorFilter()")))(),
    ListOfBlurStyle: () => (T$8.ListOfBlurStyle = dart.constFn(dart_rti.findType("core|List<ui|BlurStyle>")))(),
    BlurStyle: () => (T$8.BlurStyle = dart.constFn(dart_rti.findType("ui|BlurStyle")))(),
    BlurStyleL: () => (T$8.BlurStyleL = dart.constFn(dart_rti.findType("ui|BlurStyle*")))()
  };
  var T$9 = {
    MaskFilter: () => (T$9.MaskFilter = dart.constFn(dart_rti.findType("ui|MaskFilter")))(),
    ListOfFilterQuality: () => (T$9.ListOfFilterQuality = dart.constFn(dart_rti.findType("core|List<ui|FilterQuality>")))(),
    FilterQuality: () => (T$9.FilterQuality = dart.constFn(dart_rti.findType("ui|FilterQuality")))(),
    FilterQualityL: () => (T$9.FilterQualityL = dart.constFn(dart_rti.findType("ui|FilterQuality*")))(),
    __ToImageFilter: () => (T$9.__ToImageFilter = dart.constFn(dart_rti.findType("ui|ImageFilter({sigmaX:core|double,sigmaY:core|double,tileMode:ui|TileMode})")))(),
    __ToImageFilter$1: () => (T$9.__ToImageFilter$1 = dart.constFn(dart_rti.findType("ui|ImageFilter({radiusX:core|double,radiusY:core|double})")))(),
    Float64List__ToImageFilter: () => (T$9.Float64List__ToImageFilter = dart.constFn(dart_rti.findType("ui|ImageFilter(typed_data|Float64List{filterQuality:ui|FilterQuality})")))(),
    __ToImageFilter$2: () => (T$9.__ToImageFilter$2 = dart.constFn(dart_rti.findType("ui|ImageFilter({inner!ui|ImageFilter,outer!ui|ImageFilter})")))(),
    ListOfColorSpace: () => (T$9.ListOfColorSpace = dart.constFn(dart_rti.findType("core|List<ui|ColorSpace>")))(),
    ColorSpaceL: () => (T$9.ColorSpaceL = dart.constFn(dart_rti.findType("ui|ColorSpace*")))(),
    ListOfImageByteFormat: () => (T$9.ListOfImageByteFormat = dart.constFn(dart_rti.findType("core|List<ui|ImageByteFormat>")))(),
    ImageByteFormat: () => (T$9.ImageByteFormat = dart.constFn(dart_rti.findType("ui|ImageByteFormat")))(),
    ImageByteFormatL: () => (T$9.ImageByteFormatL = dart.constFn(dart_rti.findType("ui|ImageByteFormat*")))(),
    ListOfPixelFormat: () => (T$9.ListOfPixelFormat = dart.constFn(dart_rti.findType("core|List<ui|PixelFormat>")))(),
    PixelFormat: () => (T$9.PixelFormat = dart.constFn(dart_rti.findType("ui|PixelFormat")))(),
    PixelFormatL: () => (T$9.PixelFormatL = dart.constFn(dart_rti.findType("ui|PixelFormat*")))(),
    FrameInfo: () => (T$9.FrameInfo = dart.constFn(dart_rti.findType("ui|FrameInfo")))(),
    VoidToFutureOfFrameInfo: () => (T$9.VoidToFutureOfFrameInfo = dart.constFn(dart_rti.findType("async|Future<ui|FrameInfo>()")))(),
    FnToStringN: () => (T$9.FnToStringN = dart.constFn(dart_rti.findType("core|String?(~(ui|FrameInfo))")))(),
    Shadow: () => (T$9.Shadow = dart.constFn(dart_rti.findType("ui|Shadow")))(),
    doubleToShadow: () => (T$9.doubleToShadow = dart.constFn(dart_rti.findType("ui|Shadow(core|double)")))(),
    ShadowNAndShadowNAnddoubleToShadowN: () => (T$9.ShadowNAndShadowNAnddoubleToShadowN = dart.constFn(dart_rti.findType("ui|Shadow?(ui|Shadow?,ui|Shadow?,core|double)")))(),
    ListNOfShadowAndListNOfShadowAnddoubleToListNOfShadow: () => (T$9.ListNOfShadowAndListNOfShadowAnddoubleToListNOfShadow = dart.constFn(dart_rti.findType("core|List<ui|Shadow>?(core|List<ui|Shadow>?,core|List<ui|Shadow>?,core|double)")))(),
    ImageAndTileModeAndTileMode__ToImageShader: () => (T$9.ImageAndTileModeAndTileMode__ToImageShader = dart.constFn(dart_rti.findType("ui|ImageShader(ui|Image,ui|TileMode,ui|TileMode,typed_data|Float64List{filterQuality:ui|FilterQuality?})")))(),
    ImmutableBuffer: () => (T$9.ImmutableBuffer = dart.constFn(dart_rti.findType("ui|ImmutableBuffer")))(),
    Uint8ListToFutureOfImmutableBuffer: () => (T$9.Uint8ListToFutureOfImmutableBuffer = dart.constFn(dart_rti.findType("async|Future<ui|ImmutableBuffer>(typed_data|Uint8List)")))(),
    StringToFutureOfImmutableBuffer: () => (T$9.StringToFutureOfImmutableBuffer = dart.constFn(dart_rti.findType("async|Future<ui|ImmutableBuffer>(core|String)")))(),
    ImageDescriptor: () => (T$9.ImageDescriptor = dart.constFn(dart_rti.findType("ui|ImageDescriptor")))(),
    Codec: () => (T$9.Codec = dart.constFn(dart_rti.findType("ui|Codec")))(),
    ImmutableBufferToFutureOfImageDescriptor: () => (T$9.ImmutableBufferToFutureOfImageDescriptor = dart.constFn(dart_rti.findType("async|Future<ui|ImageDescriptor>(ui|ImmutableBuffer)")))(),
    StringToNever: () => (T$9.StringToNever = dart.constFn(dart_rti.findType("0&(core|String)")))(),
    __ToFutureOfCodec: () => (T$9.__ToFutureOfCodec = dart.constFn(dart_rti.findType("async|Future<ui|Codec>({targetHeight:core|int?,targetWidth:core|int?})")))(),
    PixelFormatN: () => (T$9.PixelFormatN = dart.constFn(dart_rti.findType("ui|PixelFormat?")))(),
    StringToFutureOfFragmentProgram: () => (T$9.StringToFutureOfFragmentProgram = dart.constFn(dart_rti.findType("async|Future<ui|FragmentProgram>(core|String)")))(),
    VoidToPath: () => (T$9.VoidToPath = dart.constFn(dart_rti.findType("ui|Path()")))(),
    PathToPath: () => (T$9.PathToPath = dart.constFn(dart_rti.findType("ui|Path(ui|Path)")))(),
    PathOperationAndPathAndPathToPath: () => (T$9.PathOperationAndPathAndPathToPath = dart.constFn(dart_rti.findType("ui|Path(ui|PathOperation,ui|Path,ui|Path)")))(),
    PathMetrics: () => (T$9.PathMetrics = dart.constFn(dart_rti.findType("ui|PathMetrics")))(),
    OffsetAnddoubleToTangent: () => (T$9.OffsetAnddoubleToTangent = dart.constFn(dart_rti.findType("ui|Tangent(ui|Offset,core|double)")))(),
    RootIsolateTokenN: () => (T$9.RootIsolateTokenN = dart.constFn(dart_rti.findType("ui|RootIsolateToken?")))(),
    PlatformDispatcher: () => (T$9.PlatformDispatcher = dart.constFn(dart_rti.findType("ui|PlatformDispatcher")))(),
    DartPerformanceModeTovoid: () => (T$9.DartPerformanceModeTovoid = dart.constFn(dart_rti.findType("~(ui|DartPerformanceMode)")))(),
    VoidToByteDataN: () => (T$9.VoidToByteDataN = dart.constFn(dart_rti.findType("typed_data|ByteData?()")))(),
    ListOfFramePhase: () => (T$9.ListOfFramePhase = dart.constFn(dart_rti.findType("core|List<ui|FramePhase>")))(),
    FramePhase: () => (T$9.FramePhase = dart.constFn(dart_rti.findType("ui|FramePhase")))(),
    FramePhaseL: () => (T$9.FramePhaseL = dart.constFn(dart_rti.findType("ui|FramePhase*")))(),
    ListOf_FrameTimingInfo: () => (T$9.ListOf_FrameTimingInfo = dart.constFn(dart_rti.findType("core|List<ui|_FrameTimingInfo>")))(),
    _FrameTimingInfo: () => (T$9._FrameTimingInfo = dart.constFn(dart_rti.findType("ui|_FrameTimingInfo")))(),
    _FrameTimingInfoL: () => (T$9._FrameTimingInfoL = dart.constFn(dart_rti.findType("ui|_FrameTimingInfo*")))(),
    __ToFrameTiming: () => (T$9.__ToFrameTiming = dart.constFn(dart_rti.findType("ui|FrameTiming({buildFinish!core|int,buildStart!core|int,frameNumber:core|int,layerCacheBytes:core|int,layerCacheCount:core|int,pictureCacheBytes:core|int,pictureCacheCount:core|int,rasterFinish!core|int,rasterFinishWallTime!core|int,rasterStart!core|int,vsyncStart!core|int})")))(),
    FramePhaseToint: () => (T$9.FramePhaseToint = dart.constFn(dart_rti.findType("core|int(ui|FramePhase)")))(),
    FramePhaseToDuration: () => (T$9.FramePhaseToDuration = dart.constFn(dart_rti.findType("core|Duration(ui|FramePhase)")))(),
    _FrameTimingInfoToint: () => (T$9._FrameTimingInfoToint = dart.constFn(dart_rti.findType("core|int(ui|_FrameTimingInfo)")))(),
    DurationToString: () => (T$9.DurationToString = dart.constFn(dart_rti.findType("core|String(core|Duration)")))(),
    ListOfAppLifecycleState: () => (T$9.ListOfAppLifecycleState = dart.constFn(dart_rti.findType("core|List<ui|AppLifecycleState>")))(),
    AppLifecycleState: () => (T$9.AppLifecycleState = dart.constFn(dart_rti.findType("ui|AppLifecycleState")))(),
    AppLifecycleStateL: () => (T$9.AppLifecycleStateL = dart.constFn(dart_rti.findType("ui|AppLifecycleState*")))(),
    ListOfAppExitResponse: () => (T$9.ListOfAppExitResponse = dart.constFn(dart_rti.findType("core|List<ui|AppExitResponse>")))(),
    AppExitResponse: () => (T$9.AppExitResponse = dart.constFn(dart_rti.findType("ui|AppExitResponse")))(),
    AppExitResponseL: () => (T$9.AppExitResponseL = dart.constFn(dart_rti.findType("ui|AppExitResponse*")))(),
    ListOfAppExitType: () => (T$9.ListOfAppExitType = dart.constFn(dart_rti.findType("core|List<ui|AppExitType>")))(),
    AppExitType: () => (T$9.AppExitType = dart.constFn(dart_rti.findType("ui|AppExitType")))(),
    AppExitTypeL: () => (T$9.AppExitTypeL = dart.constFn(dart_rti.findType("ui|AppExitType*")))(),
    __ToViewPadding: () => (T$9.__ToViewPadding = dart.constFn(dart_rti.findType("ui|ViewPadding({bottom!core|double,left!core|double,right!core|double,top!core|double})")))(),
    ViewPadding: () => (T$9.ViewPadding = dart.constFn(dart_rti.findType("ui|ViewPadding")))(),
    __ToViewConstraints: () => (T$9.__ToViewConstraints = dart.constFn(dart_rti.findType("ui|ViewConstraints({maxHeight:core|double,maxWidth:core|double,minHeight:core|double,minWidth:core|double})")))(),
    SizeToViewConstraints: () => (T$9.SizeToViewConstraints = dart.constFn(dart_rti.findType("ui|ViewConstraints(ui|Size)")))(),
    DisplayFeature: () => (T$9.DisplayFeature = dart.constFn(dart_rti.findType("ui|DisplayFeature")))(),
    DisplayFeatureType: () => (T$9.DisplayFeatureType = dart.constFn(dart_rti.findType("ui|DisplayFeatureType")))(),
    DisplayFeatureState: () => (T$9.DisplayFeatureState = dart.constFn(dart_rti.findType("ui|DisplayFeatureState")))(),
    ListOfDisplayFeatureType: () => (T$9.ListOfDisplayFeatureType = dart.constFn(dart_rti.findType("core|List<ui|DisplayFeatureType>")))(),
    DisplayFeatureTypeL: () => (T$9.DisplayFeatureTypeL = dart.constFn(dart_rti.findType("ui|DisplayFeatureType*")))(),
    ListOfDisplayFeatureState: () => (T$9.ListOfDisplayFeatureState = dart.constFn(dart_rti.findType("core|List<ui|DisplayFeatureState>")))(),
    DisplayFeatureStateL: () => (T$9.DisplayFeatureStateL = dart.constFn(dart_rti.findType("ui|DisplayFeatureState*")))(),
    Locale: () => (T$9.Locale = dart.constFn(dart_rti.findType("ui|Locale")))(),
    ListOfDartPerformanceMode: () => (T$9.ListOfDartPerformanceMode = dart.constFn(dart_rti.findType("core|List<ui|DartPerformanceMode>")))(),
    DartPerformanceMode: () => (T$9.DartPerformanceMode = dart.constFn(dart_rti.findType("ui|DartPerformanceMode")))(),
    DartPerformanceModeL: () => (T$9.DartPerformanceModeL = dart.constFn(dart_rti.findType("ui|DartPerformanceMode*")))(),
    __ToSemanticsActionEvent: () => (T$9.__ToSemanticsActionEvent = dart.constFn(dart_rti.findType("ui|SemanticsActionEvent({arguments:core|Object?,nodeId:core|int?,type:ui|SemanticsAction?,viewId:core|int?})")))(),
    SemanticsAction: () => (T$9.SemanticsAction = dart.constFn(dart_rti.findType("ui|SemanticsAction")))(),
    ViewFocusState: () => (T$9.ViewFocusState = dart.constFn(dart_rti.findType("ui|ViewFocusState")))(),
    ViewFocusDirection: () => (T$9.ViewFocusDirection = dart.constFn(dart_rti.findType("ui|ViewFocusDirection")))(),
    ListOfViewFocusState: () => (T$9.ListOfViewFocusState = dart.constFn(dart_rti.findType("core|List<ui|ViewFocusState>")))(),
    ViewFocusStateL: () => (T$9.ViewFocusStateL = dart.constFn(dart_rti.findType("ui|ViewFocusState*")))(),
    ListOfViewFocusDirection: () => (T$9.ListOfViewFocusDirection = dart.constFn(dart_rti.findType("core|List<ui|ViewFocusDirection>")))(),
    ViewFocusDirectionL: () => (T$9.ViewFocusDirectionL = dart.constFn(dart_rti.findType("ui|ViewFocusDirection*")))(),
    ListOfPointerChange: () => (T$9.ListOfPointerChange = dart.constFn(dart_rti.findType("core|List<ui|PointerChange>")))(),
    PointerChange: () => (T$9.PointerChange = dart.constFn(dart_rti.findType("ui|PointerChange")))(),
    PointerChangeL: () => (T$9.PointerChangeL = dart.constFn(dart_rti.findType("ui|PointerChange*")))(),
    ListOfPointerDeviceKind: () => (T$9.ListOfPointerDeviceKind = dart.constFn(dart_rti.findType("core|List<ui|PointerDeviceKind>")))(),
    PointerDeviceKind: () => (T$9.PointerDeviceKind = dart.constFn(dart_rti.findType("ui|PointerDeviceKind")))(),
    PointerDeviceKindL: () => (T$9.PointerDeviceKindL = dart.constFn(dart_rti.findType("ui|PointerDeviceKind*")))(),
    ListOfPointerSignalKind: () => (T$9.ListOfPointerSignalKind = dart.constFn(dart_rti.findType("core|List<ui|PointerSignalKind>")))(),
    PointerSignalKind: () => (T$9.PointerSignalKind = dart.constFn(dart_rti.findType("ui|PointerSignalKind")))(),
    PointerSignalKindL: () => (T$9.PointerSignalKindL = dart.constFn(dart_rti.findType("ui|PointerSignalKind*")))(),
    __Tovoid$7: () => (T$9.__Tovoid$7 = dart.constFn(dart_rti.findType("~({allowPlatformDefault!core|bool})")))(),
    PointerSignalKindN: () => (T$9.PointerSignalKindN = dart.constFn(dart_rti.findType("ui|PointerSignalKind?")))(),
    __ToNvoid: () => (T$9.__ToNvoid = dart.constFn(dart_rti.findType("~({allowPlatformDefault:core|bool})?")))(),
    PointerDataL: () => (T$9.PointerDataL = dart.constFn(dart_rti.findType("ui|PointerData*")))(),
    ListOfPointerData: () => (T$9.ListOfPointerData = dart.constFn(dart_rti.findType("core|List<ui|PointerData>")))(),
    ListOfSemanticsAction: () => (T$9.ListOfSemanticsAction = dart.constFn(dart_rti.findType("core|List<ui|SemanticsAction>")))(),
    intToSemanticsActionN: () => (T$9.intToSemanticsActionN = dart.constFn(dart_rti.findType("ui|SemanticsAction?(core|int)")))(),
    MapOfint$SemanticsAction: () => (T$9.MapOfint$SemanticsAction = dart.constFn(dart_rti.findType("core|Map<core|int,ui|SemanticsAction>")))(),
    SemanticsActionL: () => (T$9.SemanticsActionL = dart.constFn(dart_rti.findType("ui|SemanticsAction*")))(),
    ListOfSemanticsFlag: () => (T$9.ListOfSemanticsFlag = dart.constFn(dart_rti.findType("core|List<ui|SemanticsFlag>")))(),
    intToSemanticsFlagN: () => (T$9.intToSemanticsFlagN = dart.constFn(dart_rti.findType("ui|SemanticsFlag?(core|int)")))(),
    SemanticsFlag: () => (T$9.SemanticsFlag = dart.constFn(dart_rti.findType("ui|SemanticsFlag")))(),
    MapOfint$SemanticsFlag: () => (T$9.MapOfint$SemanticsFlag = dart.constFn(dart_rti.findType("core|Map<core|int,ui|SemanticsFlag>")))(),
    SemanticsFlagL: () => (T$9.SemanticsFlagL = dart.constFn(dart_rti.findType("ui|SemanticsFlag*")))(),
    TextRange: () => (T$9.TextRange = dart.constFn(dart_rti.findType("ui|TextRange")))(),
    __ToStringAttribute: () => (T$9.__ToStringAttribute = dart.constFn(dart_rti.findType("ui|StringAttribute({range!ui|TextRange})")))(),
    SemanticsNodeUpdate: () => (T$9.SemanticsNodeUpdate = dart.constFn(dart_rti.findType("_engine|SemanticsNodeUpdate")))(),
    __Tovoid$8: () => (T$9.__Tovoid$8 = dart.constFn(dart_rti.findType("~({actions!core|int,additionalActions!typed_data|Int32List,childrenInHitTestOrder!typed_data|Int32List,childrenInTraversalOrder!typed_data|Int32List,currentValueLength!core|int,decreasedValue!core|String,decreasedValueAttributes!core|List<ui|StringAttribute>,elevation!core|double,flags!core|int,headingLevel:core|int,hint!core|String,hintAttributes!core|List<ui|StringAttribute>,id!core|int,identifier!core|String,increasedValue!core|String,increasedValueAttributes!core|List<ui|StringAttribute>,label!core|String,labelAttributes!core|List<ui|StringAttribute>,maxValueLength!core|int,platformViewId!core|int,rect!ui|Rect,scrollChildren!core|int,scrollExtentMax!core|double,scrollExtentMin!core|double,scrollIndex!core|int,scrollPosition!core|double,textDirection:ui|TextDirection?,textSelectionBase!core|int,textSelectionExtent!core|int,thickness!core|double,tooltip:core|String?,transform!typed_data|Float64List,value!core|String,valueAttributes!core|List<ui|StringAttribute>})")))(),
    __Tovoid$9: () => (T$9.__Tovoid$9 = dart.constFn(dart_rti.findType("~({hint:core|String?,id!core|int,label:core|String?,overrideId:core|int})")))(),
    VoidToSemanticsUpdate: () => (T$9.VoidToSemanticsUpdate = dart.constFn(dart_rti.findType("ui|SemanticsUpdate()")))(),
    ListOfSemanticsNodeUpdate: () => (T$9.ListOfSemanticsNodeUpdate = dart.constFn(dart_rti.findType("core|List<_engine|SemanticsNodeUpdate>")))(),
    __ToSemanticsUpdate: () => (T$9.__ToSemanticsUpdate = dart.constFn(dart_rti.findType("ui|SemanticsUpdate({nodeUpdates:core|List<_engine|SemanticsNodeUpdate>?})")))(),
    ListOfFontStyle: () => (T$9.ListOfFontStyle = dart.constFn(dart_rti.findType("core|List<ui|FontStyle>")))(),
    FontStyle: () => (T$9.FontStyle = dart.constFn(dart_rti.findType("ui|FontStyle")))(),
    FontStyleL: () => (T$9.FontStyleL = dart.constFn(dart_rti.findType("ui|FontStyle*")))(),
    ListOfPlaceholderAlignment: () => (T$9.ListOfPlaceholderAlignment = dart.constFn(dart_rti.findType("core|List<ui|PlaceholderAlignment>")))(),
    PlaceholderAlignment: () => (T$9.PlaceholderAlignment = dart.constFn(dart_rti.findType("ui|PlaceholderAlignment")))(),
    PlaceholderAlignmentL: () => (T$9.PlaceholderAlignmentL = dart.constFn(dart_rti.findType("ui|PlaceholderAlignment*")))(),
    FontWeightNAndFontWeightNAnddoubleToFontWeightN: () => (T$9.FontWeightNAndFontWeightNAnddoubleToFontWeightN = dart.constFn(dart_rti.findType("ui|FontWeight?(ui|FontWeight?,ui|FontWeight?,core|double)")))(),
    FontWeight: () => (T$9.FontWeight = dart.constFn(dart_rti.findType("ui|FontWeight")))(),
    ListOfFontWeight: () => (T$9.ListOfFontWeight = dart.constFn(dart_rti.findType("core|List<ui|FontWeight>")))(),
    FontWeightL: () => (T$9.FontWeightL = dart.constFn(dart_rti.findType("ui|FontWeight*")))(),
    FontFeature: () => (T$9.FontFeature = dart.constFn(dart_rti.findType("ui|FontFeature")))(),
    intToFontFeature: () => (T$9.intToFontFeature = dart.constFn(dart_rti.findType("ui|FontFeature(core|int)")))(),
    FontVariation: () => (T$9.FontVariation = dart.constFn(dart_rti.findType("ui|FontVariation")))(),
    FontVariationNAndFontVariationNAnddoubleToFontVariationN: () => (T$9.FontVariationNAndFontVariationNAnddoubleToFontVariationN = dart.constFn(dart_rti.findType("ui|FontVariation?(ui|FontVariation?,ui|FontVariation?,core|double)")))(),
    GlyphInfo: () => (T$9.GlyphInfo = dart.constFn(dart_rti.findType("ui|GlyphInfo")))(),
    TextDirection: () => (T$9.TextDirection = dart.constFn(dart_rti.findType("ui|TextDirection")))(),
    ListOfTextAlign: () => (T$9.ListOfTextAlign = dart.constFn(dart_rti.findType("core|List<ui|TextAlign>")))(),
    TextAlign: () => (T$9.TextAlign = dart.constFn(dart_rti.findType("ui|TextAlign")))(),
    TextAlignL: () => (T$9.TextAlignL = dart.constFn(dart_rti.findType("ui|TextAlign*")))(),
    ListOfTextBaseline: () => (T$9.ListOfTextBaseline = dart.constFn(dart_rti.findType("core|List<ui|TextBaseline>")))(),
    TextBaseline: () => (T$9.TextBaseline = dart.constFn(dart_rti.findType("ui|TextBaseline")))(),
    TextBaselineL: () => (T$9.TextBaselineL = dart.constFn(dart_rti.findType("ui|TextBaseline*")))(),
    TextDecoration: () => (T$9.TextDecoration = dart.constFn(dart_rti.findType("ui|TextDecoration")))(),
    ListOfTextDecorationToTextDecoration: () => (T$9.ListOfTextDecorationToTextDecoration = dart.constFn(dart_rti.findType("ui|TextDecoration(core|List<ui|TextDecoration>)")))(),
    TextDecorationTobool: () => (T$9.TextDecorationTobool = dart.constFn(dart_rti.findType("core|bool(ui|TextDecoration)")))(),
    ListOfTextDecorationStyle: () => (T$9.ListOfTextDecorationStyle = dart.constFn(dart_rti.findType("core|List<ui|TextDecorationStyle>")))(),
    TextDecorationStyle: () => (T$9.TextDecorationStyle = dart.constFn(dart_rti.findType("ui|TextDecorationStyle")))(),
    TextDecorationStyleL: () => (T$9.TextDecorationStyleL = dart.constFn(dart_rti.findType("ui|TextDecorationStyle*")))(),
    ListOfTextLeadingDistribution: () => (T$9.ListOfTextLeadingDistribution = dart.constFn(dart_rti.findType("core|List<ui|TextLeadingDistribution>")))(),
    TextLeadingDistribution: () => (T$9.TextLeadingDistribution = dart.constFn(dart_rti.findType("ui|TextLeadingDistribution")))(),
    TextLeadingDistributionL: () => (T$9.TextLeadingDistributionL = dart.constFn(dart_rti.findType("ui|TextLeadingDistribution*")))(),
    TextHeightBehavior: () => (T$9.TextHeightBehavior = dart.constFn(dart_rti.findType("ui|TextHeightBehavior")))(),
    __ToTextStyle: () => (T$9.__ToTextStyle = dart.constFn(dart_rti.findType("ui|TextStyle({background:ui|Paint?,color:ui|Color?,decoration:ui|TextDecoration?,decorationColor:ui|Color?,decorationStyle:ui|TextDecorationStyle?,decorationThickness:core|double?,fontFamily:core|String?,fontFamilyFallback:core|List<core|String>?,fontFeatures:core|List<ui|FontFeature>?,fontSize:core|double?,fontStyle:ui|FontStyle?,fontVariations:core|List<ui|FontVariation>?,fontWeight:ui|FontWeight?,foreground:ui|Paint?,height:core|double?,leadingDistribution:ui|TextLeadingDistribution?,letterSpacing:core|double?,locale:ui|Locale?,shadows:core|List<ui|Shadow>?,textBaseline:ui|TextBaseline?,wordSpacing:core|double?})")))(),
    __ToParagraphStyle: () => (T$9.__ToParagraphStyle = dart.constFn(dart_rti.findType("ui|ParagraphStyle({ellipsis:core|String?,fontFamily:core|String?,fontSize:core|double?,fontStyle:ui|FontStyle?,fontWeight:ui|FontWeight?,height:core|double?,locale:ui|Locale?,maxLines:core|int?,strutStyle:ui|StrutStyle?,textAlign:ui|TextAlign?,textDirection:ui|TextDirection?,textHeightBehavior:ui|TextHeightBehavior?})")))(),
    __ToStrutStyle: () => (T$9.__ToStrutStyle = dart.constFn(dart_rti.findType("ui|StrutStyle({fontFamily:core|String?,fontFamilyFallback:core|List<core|String>?,fontSize:core|double?,fontStyle:ui|FontStyle?,fontWeight:ui|FontWeight?,forceStrutHeight:core|bool?,height:core|double?,leading:core|double?,leadingDistribution:ui|TextLeadingDistribution?})")))(),
    ListOfTextDirection: () => (T$9.ListOfTextDirection = dart.constFn(dart_rti.findType("core|List<ui|TextDirection>")))(),
    TextDirectionL: () => (T$9.TextDirectionL = dart.constFn(dart_rti.findType("ui|TextDirection*")))(),
    TextBox: () => (T$9.TextBox = dart.constFn(dart_rti.findType("ui|TextBox")))(),
    VoidToRect$1: () => (T$9.VoidToRect$1 = dart.constFn(dart_rti.findType("ui|Rect()")))(),
    ListOfTextAffinity: () => (T$9.ListOfTextAffinity = dart.constFn(dart_rti.findType("core|List<ui|TextAffinity>")))(),
    TextAffinity: () => (T$9.TextAffinity = dart.constFn(dart_rti.findType("ui|TextAffinity")))(),
    TextAffinityL: () => (T$9.TextAffinityL = dart.constFn(dart_rti.findType("ui|TextAffinity*")))(),
    TextPosition: () => (T$9.TextPosition = dart.constFn(dart_rti.findType("ui|TextPosition")))(),
    ParagraphConstraints: () => (T$9.ParagraphConstraints = dart.constFn(dart_rti.findType("ui|ParagraphConstraints")))(),
    ListOfBoxHeightStyle: () => (T$9.ListOfBoxHeightStyle = dart.constFn(dart_rti.findType("core|List<ui|BoxHeightStyle>")))(),
    BoxHeightStyle: () => (T$9.BoxHeightStyle = dart.constFn(dart_rti.findType("ui|BoxHeightStyle")))(),
    BoxHeightStyleL: () => (T$9.BoxHeightStyleL = dart.constFn(dart_rti.findType("ui|BoxHeightStyle*")))(),
    ListOfBoxWidthStyle: () => (T$9.ListOfBoxWidthStyle = dart.constFn(dart_rti.findType("core|List<ui|BoxWidthStyle>")))(),
    BoxWidthStyle: () => (T$9.BoxWidthStyle = dart.constFn(dart_rti.findType("ui|BoxWidthStyle")))(),
    BoxWidthStyleL: () => (T$9.BoxWidthStyleL = dart.constFn(dart_rti.findType("ui|BoxWidthStyle*")))(),
    __ToLineMetrics: () => (T$9.__ToLineMetrics = dart.constFn(dart_rti.findType("ui|LineMetrics({ascent!core|double,baseline!core|double,descent!core|double,hardBreak!core|bool,height!core|double,left!core|double,lineNumber!core|int,unscaledAscent!core|double,width!core|double})")))(),
    ParagraphStyleToParagraphBuilder: () => (T$9.ParagraphStyleToParagraphBuilder = dart.constFn(dart_rti.findType("ui|ParagraphBuilder(ui|ParagraphStyle)")))(),
    ListOfTileMode: () => (T$9.ListOfTileMode = dart.constFn(dart_rti.findType("core|List<ui|TileMode>")))(),
    TileMode: () => (T$9.TileMode = dart.constFn(dart_rti.findType("ui|TileMode")))(),
    TileModeL: () => (T$9.TileModeL = dart.constFn(dart_rti.findType("ui|TileMode*")))(),
    SemanticsUpdateTovoid: () => (T$9.SemanticsUpdateTovoid = dart.constFn(dart_rti.findType("~(ui|SemanticsUpdate)")))(),
    ListOfBrightness: () => (T$9.ListOfBrightness = dart.constFn(dart_rti.findType("core|List<ui|Brightness>")))(),
    Brightness: () => (T$9.Brightness = dart.constFn(dart_rti.findType("ui|Brightness")))(),
    BrightnessL: () => (T$9.BrightnessL = dart.constFn(dart_rti.findType("ui|Brightness*")))(),
    FunctionToCallbackHandleN: () => (T$9.FunctionToCallbackHandleN = dart.constFn(dart_rti.findType("ui|CallbackHandle?(core|Function)")))(),
    CallbackHandleToFunctionN: () => (T$9.CallbackHandleToFunctionN = dart.constFn(dart_rti.findType("core|Function?(ui|CallbackHandle)")))(),
    GestureSettings: () => (T$9.GestureSettings = dart.constFn(dart_rti.findType("ui|GestureSettings")))(),
    __ToGestureSettings: () => (T$9.__ToGestureSettings = dart.constFn(dart_rti.findType("ui|GestureSettings({physicalDoubleTapSlop:core|double?,physicalTouchSlop:core|double?})")))(),
    doubleN: () => (T$9.doubleN = dart.constFn(dart_rti.findType("core|double?")))(),
    DomDocument: () => (T$9.DomDocument = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHTMLMetaElementN: () => (T$9.DomHTMLMetaElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    DomConsole: () => (T$9.DomConsole = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringToFutureOfObject: () => (T$9.StringToFutureOfObject = dart.constFn(dart_rti.findType("async|Future<core|Object>(core|String)")))(),
    StringToFutureOfByteData: () => (T$9.StringToFutureOfByteData = dart.constFn(dart_rti.findType("async|Future<typed_data|ByteData>(core|String)")))(),
    ListOfBrowserEngine: () => (T$9.ListOfBrowserEngine = dart.constFn(dart_rti.findType("core|List<ui_web|BrowserEngine>")))(),
    BrowserEngine: () => (T$9.BrowserEngine = dart.constFn(dart_rti.findType("ui_web|BrowserEngine")))(),
    BrowserEngineL: () => (T$9.BrowserEngineL = dart.constFn(dart_rti.findType("ui_web|BrowserEngine*")))(),
    ListOfOperatingSystem: () => (T$9.ListOfOperatingSystem = dart.constFn(dart_rti.findType("core|List<ui_web|OperatingSystem>")))(),
    OperatingSystem: () => (T$9.OperatingSystem = dart.constFn(dart_rti.findType("ui_web|OperatingSystem")))(),
    OperatingSystemL: () => (T$9.OperatingSystemL = dart.constFn(dart_rti.findType("ui_web|OperatingSystem*")))(),
    DomNavigator: () => (T$9.DomNavigator = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToBrowserEngine: () => (T$9.VoidToBrowserEngine = dart.constFn(dart_rti.findType("ui_web|BrowserEngine()")))(),
    StringAndStringToBrowserEngine: () => (T$9.StringAndStringToBrowserEngine = dart.constFn(dart_rti.findType("ui_web|BrowserEngine(core|String,core|String)")))(),
    __ToOperatingSystem: () => (T$9.__ToOperatingSystem = dart.constFn(dart_rti.findType("ui_web|OperatingSystem({overrideMaxTouchPoints:core|int?,overridePlatform:core|String?})")))(),
    BrowserDetection: () => (T$9.BrowserDetection = dart.constFn(dart_rti.findType("ui_web|BrowserDetection")))(),
    BrowserEngineN: () => (T$9.BrowserEngineN = dart.constFn(dart_rti.findType("ui_web|BrowserEngine?")))(),
    OperatingSystemN: () => (T$9.OperatingSystemN = dart.constFn(dart_rti.findType("ui_web|OperatingSystem?")))(),
    FlutterViewManager: () => (T$9.FlutterViewManager = dart.constFn(dart_rti.findType("_engine|FlutterViewManager")))(),
    DomLocation: () => (T$9.DomLocation = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHistory: () => (T$9.DomHistory = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToDomEventListener: () => (T$9.VoidToDomEventListener = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    FnToDomEventListener: () => (T$9.FnToDomEventListener = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(@(core|Object))")))(),
    FnTovoid$36: () => (T$9.FnTovoid$36 = dart.constFn(dart_rti.findType("~(@(core|Object))")))(),
    ObjectNAndStringAndStringTovoid: () => (T$9.ObjectNAndStringAndStringTovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|String,core|String)")))(),
    DomPopStateEvent: () => (T$9.DomPopStateEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    FnToFn$6: () => (T$9.FnToFn$6 = dart.constFn(dart_rti.findType("~()(~(core|Object?))")))(),
    intToFutureOfvoid: () => (T$9.intToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(core|int)")))(),
    PlatformLocation: () => (T$9.PlatformLocation = dart.constFn(dart_rti.findType("ui_web|PlatformLocation")))(),
    StringAndFunction__Tobool: () => (T$9.StringAndFunction__Tobool = dart.constFn(dart_rti.findType("core|bool(core|String,core|Function{isVisible:core|bool})")))(),
    intToObject: () => (T$9.intToObject = dart.constFn(dart_rti.findType("core|Object(core|int)")))(),
    DomImageBitmap: () => (T$9.DomImageBitmap = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    JsFlutterConfigurationNToFutureOfvoid: () => (T$9.JsFlutterConfigurationNToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>([_interceptors|JavaScriptObject?])")))(),
    FlutterLoaderN: () => (T$9.FlutterLoaderN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    EngineFlutterWindow: () => (T$9.EngineFlutterWindow = dart.constFn(dart_rti.findType("_engine|EngineFlutterWindow")))(),
    DomEventListener: () => (T$9.DomEventListener = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    TimerN: () => (T$9.TimerN = dart.constFn(dart_rti.findType("async|Timer?")))(),
    FlutterApp: () => (T$9.FlutterApp = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToFutureOfFlutterApp: () => (T$9.VoidToFutureOfFlutterApp = dart.constFn(dart_rti.findType("async|Future<_interceptors|JavaScriptObject>()")))(),
    FlutterAppRunner: () => (T$9.FlutterAppRunner = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    JsFlutterConfigurationNToFutureOfFlutterAppRunner: () => (T$9.JsFlutterConfigurationNToFutureOfFlutterAppRunner = dart.constFn(dart_rti.findType("async|Future<_interceptors|JavaScriptObject>([_interceptors|JavaScriptObject?])")))(),
    RunAppFnParametersNToFutureOfFlutterApp: () => (T$9.RunAppFnParametersNToFutureOfFlutterApp = dart.constFn(dart_rti.findType("async|Future<_interceptors|JavaScriptObject>([_interceptors|JavaScriptObject?])")))(),
    JsFlutterViewOptionsToint: () => (T$9.JsFlutterViewOptionsToint = dart.constFn(dart_rti.findType("core|int(_interceptors|JavaScriptObject)")))(),
    intToJsFlutterViewOptionsN: () => (T$9.intToJsFlutterViewOptionsN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|int)")))(),
    VoidToFlutterEngineInitializer: () => (T$9.VoidToFlutterEngineInitializer = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    VoidToFlutterAppRunner: () => (T$9.VoidToFlutterAppRunner = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    VoidToFlutterApp: () => (T$9.VoidToFlutterApp = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    DomCanvasElement: () => (T$9.DomCanvasElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomCSSStyleDeclaration: () => (T$9.DomCSSStyleDeclaration = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomNodeN: () => (T$9.DomNodeN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SurfacePath: () => (T$9.SurfacePath = dart.constFn(dart_rti.findType("_engine|SurfacePath")))(),
    SaveStackEntry: () => (T$9.SaveStackEntry = dart.constFn(dart_rti.findType("_engine|SaveStackEntry")))(),
    SaveClipEntry: () => (T$9.SaveClipEntry = dart.constFn(dart_rti.findType("_engine|SaveClipEntry")))(),
    Matrix4: () => (T$9.Matrix4 = dart.constFn(dart_rti.findType("_engine|Matrix4")))(),
    doubleAnddoubleTovoid: () => (T$9.doubleAnddoubleTovoid = dart.constFn(dart_rti.findType("~(core|double,core|double)")))(),
    doubleTovoid: () => (T$9.doubleTovoid = dart.constFn(dart_rti.findType("~(core|double)")))(),
    RectTovoid: () => (T$9.RectTovoid = dart.constFn(dart_rti.findType("~(ui|Rect)")))(),
    RRectTovoid: () => (T$9.RRectTovoid = dart.constFn(dart_rti.findType("~(ui|RRect)")))(),
    PathTovoid: () => (T$9.PathTovoid = dart.constFn(dart_rti.findType("~(ui|Path)")))(),
    ListOfSaveStackEntry: () => (T$9.ListOfSaveStackEntry = dart.constFn(dart_rti.findType("core|List<_engine|SaveStackEntry>")))(),
    ListNOfSaveClipEntry: () => (T$9.ListNOfSaveClipEntry = dart.constFn(dart_rti.findType("core|List<_engine|SaveClipEntry>?")))(),
    DomHTMLElementTovoid: () => (T$9.DomHTMLElementTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject)")))(),
    DomCanvasRenderingContext2D: () => (T$9.DomCanvasRenderingContext2D = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    ContextStateHandle: () => (T$9.ContextStateHandle = dart.constFn(dart_rti.findType("_engine|ContextStateHandle")))(),
    intAndintToDomCanvasElementN: () => (T$9.intAndintToDomCanvasElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|int,core|int)")))(),
    intAndMatrix4AndMatrix4__Toint: () => (T$9.intAndMatrix4AndMatrix4__Toint = dart.constFn(dart_rti.findType("core|int(core|int,_engine|Matrix4,_engine|Matrix4,core|List<_engine|SaveClipEntry>?)")))(),
    DomCanvasRenderingContext2DAndRectTovoid: () => (T$9.DomCanvasRenderingContext2DAndRectTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,ui|Rect)")))(),
    DomCanvasRenderingContext2DAndRRectTovoid: () => (T$9.DomCanvasRenderingContext2DAndRRectTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,ui|RRect)")))(),
    ColorAndBlendModeTovoid: () => (T$9.ColorAndBlendModeTovoid = dart.constFn(dart_rti.findType("~(ui|Color,ui|BlendMode)")))(),
    OffsetAndOffsetTovoid: () => (T$9.OffsetAndOffsetTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,ui|Offset)")))(),
    PointModeAndFloat32ListAnddoubleTovoid: () => (T$9.PointModeAndFloat32ListAnddoubleTovoid = dart.constFn(dart_rti.findType("~(ui|PointMode,typed_data|Float32List,core|double)")))(),
    DomCanvasRenderingContext2DAndSurfacePathTovoid: () => (T$9.DomCanvasRenderingContext2DAndSurfacePathTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,_engine|SurfacePath)")))(),
    RectAndPaintingStyleNTovoid: () => (T$9.RectAndPaintingStyleNTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,ui|PaintingStyle?)")))(),
    DomCanvasRenderingContext2DAndSurfacePathAnddouble__Tovoid: () => (T$9.DomCanvasRenderingContext2DAndSurfacePathAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,_engine|SurfacePath,core|double,core|double)")))(),
    RRectAndPaintingStyleNTovoid: () => (T$9.RRectAndPaintingStyleNTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,ui|PaintingStyle?)")))(),
    RRectAndRRectAndPaintingStyleNTovoid: () => (T$9.RRectAndRRectAndPaintingStyleNTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,ui|RRect,ui|PaintingStyle?)")))(),
    OffsetAnddoubleAndPaintingStyleNTovoid: () => (T$9.OffsetAnddoubleAndPaintingStyleNTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,core|double,ui|PaintingStyle?)")))(),
    PathAndPaintingStyleNTovoid: () => (T$9.PathAndPaintingStyleNTovoid = dart.constFn(dart_rti.findType("~(ui|Path,ui|PaintingStyle?)")))(),
    DomHTMLImageElementAndOffsetTovoid: () => (T$9.DomHTMLImageElementAndOffsetTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,ui|Offset)")))(),
    PathAndColorAnddouble__Tovoid: () => (T$9.PathAndColorAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(ui|Path,ui|Color,core|double,core|bool)")))(),
    DomCanvasRenderingContext2DN: () => (T$9.DomCanvasRenderingContext2DN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    ContextStateHandleN: () => (T$9.ContextStateHandleN = dart.constFn(dart_rti.findType("_engine|ContextStateHandle?")))(),
    ListNOfDomCanvasElement: () => (T$9.ListNOfDomCanvasElement = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject>?")))(),
    DomCanvasElementN: () => (T$9.DomCanvasElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    DomHTMLElementN: () => (T$9.DomHTMLElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    EngineGradient: () => (T$9.EngineGradient = dart.constFn(dart_rti.findType("_engine|EngineGradient")))(),
    EngineImageShader: () => (T$9.EngineImageShader = dart.constFn(dart_rti.findType("_engine|EngineImageShader")))(),
    BlendModeN: () => (T$9.BlendModeN = dart.constFn(dart_rti.findType("ui|BlendMode?")))(),
    StrokeCapN: () => (T$9.StrokeCapN = dart.constFn(dart_rti.findType("ui|StrokeCap?")))(),
    StrokeJoinN: () => (T$9.StrokeJoinN = dart.constFn(dart_rti.findType("ui|StrokeJoin?")))(),
    SurfacePaintDataAndRectNTovoid: () => (T$9.SurfacePaintDataAndRectNTovoid = dart.constFn(dart_rti.findType("~(_engine|SurfacePaintData,ui|Rect?)")))(),
    PaintingStyleNTovoid: () => (T$9.PaintingStyleNTovoid = dart.constFn(dart_rti.findType("~(ui|PaintingStyle?)")))(),
    PaintingStyleNAndPathFillTypeTovoid: () => (T$9.PaintingStyleNAndPathFillTypeTovoid = dart.constFn(dart_rti.findType("~(ui|PaintingStyle?,ui|PathFillType)")))(),
    CanvasPool: () => (T$9.CanvasPool = dart.constFn(dart_rti.findType("_engine|CanvasPool")))(),
    MaskFilterN: () => (T$9.MaskFilterN = dart.constFn(dart_rti.findType("ui|MaskFilter?")))(),
    SurfacePaintDataN: () => (T$9.SurfacePaintDataN = dart.constFn(dart_rti.findType("_engine|SurfacePaintData?")))(),
    RectN$1: () => (T$9.RectN$1 = dart.constFn(dart_rti.findType("ui|Rect?")))(),
    ColorFilter: () => (T$9.ColorFilter = dart.constFn(dart_rti.findType("ui|ColorFilter")))(),
    EngineColorFilter: () => (T$9.EngineColorFilter = dart.constFn(dart_rti.findType("_engine|EngineColorFilter")))(),
    CkManagedSkImageFilterConvertible: () => (T$9.CkManagedSkImageFilterConvertible = dart.constFn(dart_rti.findType("_engine|CkManagedSkImageFilterConvertible")))(),
    SkImageFilterTovoid: () => (T$9.SkImageFilterTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject)")))(),
    ColorTovoid: () => (T$9.ColorTovoid = dart.constFn(dart_rti.findType("~(ui|Color)")))(),
    CkPathAndboolTovoid: () => (T$9.CkPathAndboolTovoid = dart.constFn(dart_rti.findType("~(_engine|CkPath,core|bool)")))(),
    RRectAndboolTovoid: () => (T$9.RRectAndboolTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,core|bool)")))(),
    RectAndClipOpAndboolTovoid: () => (T$9.RectAndClipOpAndboolTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,ui|ClipOp,core|bool)")))(),
    RectAnddoubleAnddouble__Tovoid: () => (T$9.RectAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(ui|Rect,core|double,core|double,core|bool,_engine|CkPaint)")))(),
    CkPaintAndCkImageAndFloat32List__Tovoid: () => (T$9.CkPaintAndCkImageAndFloat32List__Tovoid = dart.constFn(dart_rti.findType("~(_engine|CkPaint,_engine|CkImage,typed_data|Float32List,typed_data|Float32List,typed_data|Uint32List?,ui|BlendMode)")))(),
    OffsetAnddoubleAndCkPaintTovoid: () => (T$9.OffsetAnddoubleAndCkPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,core|double,_engine|CkPaint)")))(),
    RRectAndRRectAndCkPaintTovoid: () => (T$9.RRectAndRRectAndCkPaintTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,ui|RRect,_engine|CkPaint)")))(),
    CkImageAndOffsetAndCkPaintTovoid: () => (T$9.CkImageAndOffsetAndCkPaintTovoid = dart.constFn(dart_rti.findType("~(_engine|CkImage,ui|Offset,_engine|CkPaint)")))(),
    CkImageAndRectAndRect__Tovoid: () => (T$9.CkImageAndRectAndRect__Tovoid = dart.constFn(dart_rti.findType("~(_engine|CkImage,ui|Rect,ui|Rect,_engine|CkPaint)")))(),
    OffsetAndOffsetAndCkPaintTovoid: () => (T$9.OffsetAndOffsetAndCkPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,ui|Offset,_engine|CkPaint)")))(),
    RectAndCkPaintTovoid: () => (T$9.RectAndCkPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,_engine|CkPaint)")))(),
    CkPaintTovoid: () => (T$9.CkPaintTovoid = dart.constFn(dart_rti.findType("~(_engine|CkPaint)")))(),
    CkParagraphAndOffsetTovoid: () => (T$9.CkParagraphAndOffsetTovoid = dart.constFn(dart_rti.findType("~(_engine|CkParagraph,ui|Offset)")))(),
    CkPathAndCkPaintTovoid: () => (T$9.CkPathAndCkPaintTovoid = dart.constFn(dart_rti.findType("~(_engine|CkPath,_engine|CkPaint)")))(),
    CkPictureTovoid: () => (T$9.CkPictureTovoid = dart.constFn(dart_rti.findType("~(_engine|CkPicture)")))(),
    CkPaintAndPointModeAndFloat32ListTovoid: () => (T$9.CkPaintAndPointModeAndFloat32ListTovoid = dart.constFn(dart_rti.findType("~(_engine|CkPaint,ui|PointMode,typed_data|Float32List)")))(),
    RRectAndCkPaintTovoid: () => (T$9.RRectAndCkPaintTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,_engine|CkPaint)")))(),
    CkPathAndColorAnddouble__Tovoid: () => (T$9.CkPathAndColorAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(_engine|CkPath,ui|Color,core|double,core|bool)")))(),
    CkVerticesAndBlendModeAndCkPaintTovoid: () => (T$9.CkVerticesAndBlendModeAndCkPaintTovoid = dart.constFn(dart_rti.findType("~(_engine|CkVertices,ui|BlendMode,_engine|CkPaint)")))(),
    RectAndCkPaintNTovoid: () => (T$9.RectAndCkPaintNTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,_engine|CkPaint?)")))(),
    CkPaintNTovoid: () => (T$9.CkPaintNTovoid = dart.constFn(dart_rti.findType("~(_engine|CkPaint?)")))(),
    RectAndImageFilterAndCkPaintNTovoid: () => (T$9.RectAndImageFilterAndCkPaintNTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,ui|ImageFilter[_engine|CkPaint?])")))(),
    SkCanvas: () => (T$9.SkCanvas = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkContourMeasureIter: () => (T$9.SkContourMeasureIter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    CkPictureRecorder: () => (T$9.CkPictureRecorder = dart.constFn(dart_rti.findType("_engine|CkPictureRecorder")))(),
    CkPaint: () => (T$9.CkPaint = dart.constFn(dart_rti.findType("_engine|CkPaint")))(),
    CkPath: () => (T$9.CkPath = dart.constFn(dart_rti.findType("_engine|CkPath")))(),
    CkImage: () => (T$9.CkImage = dart.constFn(dart_rti.findType("_engine|CkImage")))(),
    CkPicture: () => (T$9.CkPicture = dart.constFn(dart_rti.findType("_engine|CkPicture")))(),
    CkParagraph: () => (T$9.CkParagraph = dart.constFn(dart_rti.findType("_engine|CkParagraph")))(),
    CkVertices: () => (T$9.CkVertices = dart.constFn(dart_rti.findType("_engine|CkVertices")))(),
    PictureRecorderAndRectNToCanvasKitCanvas: () => (T$9.PictureRecorderAndRectNToCanvasKitCanvas = dart.constFn(dart_rti.findType("_engine|CanvasKitCanvas(ui|PictureRecorder[ui|Rect?])")))(),
    RectNAndPaintTovoid: () => (T$9.RectNAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Rect?,ui|Paint)")))(),
    PaintTovoid: () => (T$9.PaintTovoid = dart.constFn(dart_rti.findType("~(ui|Paint)")))(),
    RectAndPaintTovoid: () => (T$9.RectAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,ui|Paint)")))(),
    doubleAnddoubleNTovoid: () => (T$9.doubleAnddoubleNTovoid = dart.constFn(dart_rti.findType("~(core|double[core|double?])")))(),
    Float64ListTovoid: () => (T$9.Float64ListTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float64List)")))(),
    Rect__Tovoid: () => (T$9.Rect__Tovoid = dart.constFn(dart_rti.findType("~(ui|Rect{clipOp:ui|ClipOp,doAntiAlias:core|bool})")))(),
    RRect__Tovoid: () => (T$9.RRect__Tovoid = dart.constFn(dart_rti.findType("~(ui|RRect{doAntiAlias:core|bool})")))(),
    Path__Tovoid: () => (T$9.Path__Tovoid = dart.constFn(dart_rti.findType("~(ui|Path{doAntiAlias:core|bool})")))(),
    OffsetAndOffsetAndPaintTovoid: () => (T$9.OffsetAndOffsetAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,ui|Offset,ui|Paint)")))(),
    RRectAndPaintTovoid: () => (T$9.RRectAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,ui|Paint)")))(),
    RRectAndRRectAndPaintTovoid: () => (T$9.RRectAndRRectAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,ui|RRect,ui|Paint)")))(),
    OffsetAnddoubleAndPaintTovoid: () => (T$9.OffsetAnddoubleAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,core|double,ui|Paint)")))(),
    RectAnddoubleAnddouble__Tovoid$1: () => (T$9.RectAnddoubleAnddouble__Tovoid$1 = dart.constFn(dart_rti.findType("~(ui|Rect,core|double,core|double,core|bool,ui|Paint)")))(),
    PathAndPaintTovoid: () => (T$9.PathAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Path,ui|Paint)")))(),
    ImageAndOffsetAndPaintTovoid: () => (T$9.ImageAndOffsetAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Image,ui|Offset,ui|Paint)")))(),
    ImageAndRectAndRect__Tovoid: () => (T$9.ImageAndRectAndRect__Tovoid = dart.constFn(dart_rti.findType("~(ui|Image,ui|Rect,ui|Rect,ui|Paint)")))(),
    PictureTovoid: () => (T$9.PictureTovoid = dart.constFn(dart_rti.findType("~(ui|Picture)")))(),
    ParagraphAndOffsetTovoid: () => (T$9.ParagraphAndOffsetTovoid = dart.constFn(dart_rti.findType("~(ui|Paragraph,ui|Offset)")))(),
    PointModeAndListOfOffsetAndPaintTovoid: () => (T$9.PointModeAndListOfOffsetAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|PointMode,core|List<ui|Offset>,ui|Paint)")))(),
    PointModeAndFloat32ListAndPaintTovoid: () => (T$9.PointModeAndFloat32ListAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|PointMode,typed_data|Float32List,ui|Paint)")))(),
    VerticesAndBlendModeAndPaintTovoid: () => (T$9.VerticesAndBlendModeAndPaintTovoid = dart.constFn(dart_rti.findType("~(ui|Vertices,ui|BlendMode,ui|Paint)")))(),
    ImageAndListOfRSTransformAndListOfRect__Tovoid: () => (T$9.ImageAndListOfRSTransformAndListOfRect__Tovoid = dart.constFn(dart_rti.findType("~(ui|Image,core|List<ui|RSTransform>,core|List<ui|Rect>,core|List<ui|Color>?,ui|BlendMode?,ui|Rect?,ui|Paint)")))(),
    ImageAndFloat32ListAndFloat32List__Tovoid: () => (T$9.ImageAndFloat32ListAndFloat32List__Tovoid = dart.constFn(dart_rti.findType("~(ui|Image,typed_data|Float32List,typed_data|Float32List,typed_data|Int32List?,ui|BlendMode?,ui|Rect?,ui|Paint)")))(),
    PaintAndImageAndFloat32List__Tovoid: () => (T$9.PaintAndImageAndFloat32List__Tovoid = dart.constFn(dart_rti.findType("~(ui|Paint,ui|Image,typed_data|Float32List,typed_data|Float32List,typed_data|Uint32List?,ui|BlendMode)")))(),
    CkCanvas: () => (T$9.CkCanvas = dart.constFn(dart_rti.findType("_engine|CkCanvas")))(),
    SkColorFilter: () => (T$9.SkColorFilter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    ManagedSkColorFilter: () => (T$9.ManagedSkColorFilter = dart.constFn(dart_rti.findType("_engine|ManagedSkColorFilter")))(),
    UniqueRefOfSkColorFilter: () => (T$9.UniqueRefOfSkColorFilter = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    CkColorFilter: () => (T$9.CkColorFilter = dart.constFn(dart_rti.findType("_engine|CkColorFilter")))(),
    UniqueRefNOfSkColorFilter: () => (T$9.UniqueRefNOfSkColorFilter = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    SkImageFilterNamespace: () => (T$9.SkImageFilterNamespace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkImageFilter: () => (T$9.SkImageFilter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToSkImageFilter: () => (T$9.VoidToSkImageFilter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    FnTovoid$37: () => (T$9.FnTovoid$37 = dart.constFn(dart_rti.findType("~(~(_interceptors|JavaScriptObject))")))(),
    CkBlendModeColorFilter: () => (T$9.CkBlendModeColorFilter = dart.constFn(dart_rti.findType("_engine|CkBlendModeColorFilter")))(),
    VoidToSkColorFilter: () => (T$9.VoidToSkColorFilter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    SkColorFilterNamespace: () => (T$9.SkColorFilterNamespace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    CkMatrixColorFilter: () => (T$9.CkMatrixColorFilter = dart.constFn(dart_rti.findType("_engine|CkMatrixColorFilter")))(),
    ListOfdouble: () => (T$9.ListOfdouble = dart.constFn(dart_rti.findType("core|List<core|double>")))(),
    CkComposeColorFilter: () => (T$9.CkComposeColorFilter = dart.constFn(dart_rti.findType("_engine|CkComposeColorFilter")))(),
    ManagedSkColorFilterN: () => (T$9.ManagedSkColorFilterN = dart.constFn(dart_rti.findType("_engine|ManagedSkColorFilter?")))(),
    EmbeddedViewParams: () => (T$9.EmbeddedViewParams = dart.constFn(dart_rti.findType("_engine|EmbeddedViewParams")))(),
    ViewClipChain: () => (T$9.ViewClipChain = dart.constFn(dart_rti.findType("_engine|ViewClipChain")))(),
    CkPictureRecorderToCkCanvas: () => (T$9.CkPictureRecorderToCkCanvas = dart.constFn(dart_rti.findType("_engine|CkCanvas(_engine|CkPictureRecorder)")))(),
    VoidToViewClipChain: () => (T$9.VoidToViewClipChain = dart.constFn(dart_rti.findType("_engine|ViewClipChain()")))(),
    DomNode: () => (T$9.DomNode = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomElement: () => (T$9.DomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGElement: () => (T$9.SVGElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    RenderingPlatformView: () => (T$9.RenderingPlatformView = dart.constFn(dart_rti.findType("_engine|RenderingPlatformView")))(),
    RenderingRenderCanvas: () => (T$9.RenderingRenderCanvas = dart.constFn(dart_rti.findType("_engine|RenderingRenderCanvas")))(),
    RenderingEntity: () => (T$9.RenderingEntity = dart.constFn(dart_rti.findType("_engine|RenderingEntity")))(),
    RenderingRenderCanvasAndintTovoid: () => (T$9.RenderingRenderCanvasAndintTovoid = dart.constFn(dart_rti.findType("~(_engine|RenderingRenderCanvas,core|int)")))(),
    Rendering: () => (T$9.Rendering = dart.constFn(dart_rti.findType("_engine|Rendering")))(),
    BitmapSize: () => (T$9.BitmapSize = dart.constFn(dart_rti.findType("_engine|BitmapSize")))(),
    VoidToIterableOfCkCanvas: () => (T$9.VoidToIterableOfCkCanvas = dart.constFn(dart_rti.findType("core|Iterable<_engine|CkCanvas>()")))(),
    intAndEmbeddedViewParamsTovoid: () => (T$9.intAndEmbeddedViewParamsTovoid = dart.constFn(dart_rti.findType("~(core|int,_engine|EmbeddedViewParams)")))(),
    intToCkCanvasN: () => (T$9.intToCkCanvasN = dart.constFn(dart_rti.findType("_engine|CkCanvas?(core|int)")))(),
    MutatorsStackToint: () => (T$9.MutatorsStackToint = dart.constFn(dart_rti.findType("core|int(_engine|MutatorsStack)")))(),
    intAndDomElementAndDomElementToDomElement: () => (T$9.intAndDomElementAndDomElementToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|int,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject)")))(),
    EmbeddedViewParamsAndDomElementAndintTovoid: () => (T$9.EmbeddedViewParamsAndDomElementAndintTovoid = dart.constFn(dart_rti.findType("~(_engine|EmbeddedViewParams,_interceptors|JavaScriptObject,core|int)")))(),
    DomElementTovoid: () => (T$9.DomElementTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject)")))(),
    CkPictureToFutureOfvoid: () => (T$9.CkPictureToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(_engine|CkPicture)")))(),
    RenderingToRendering: () => (T$9.RenderingToRendering = dart.constFn(dart_rti.findType("_engine|Rendering(_engine|Rendering)")))(),
    RenderingTovoid: () => (T$9.RenderingTovoid = dart.constFn(dart_rti.findType("~(_engine|Rendering)")))(),
    RenderingEntityToDomElement: () => (T$9.RenderingEntityToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_engine|RenderingEntity)")))(),
    RenderingAndRenderingToListOfint: () => (T$9.RenderingAndRenderingToListOfint = dart.constFn(dart_rti.findType("core|List<core|int>(_engine|Rendering,_engine|Rendering)")))(),
    ViewRasterizer: () => (T$9.ViewRasterizer = dart.constFn(dart_rti.findType("_engine|ViewRasterizer")))(),
    EmbedderFrameContext: () => (T$9.EmbedderFrameContext = dart.constFn(dart_rti.findType("_engine|EmbedderFrameContext")))(),
    MapOfint$EmbeddedViewParams: () => (T$9.MapOfint$EmbeddedViewParams = dart.constFn(dart_rti.findType("core|Map<core|int,_engine|EmbeddedViewParams>")))(),
    MapOfint$ViewClipChain: () => (T$9.MapOfint$ViewClipChain = dart.constFn(dart_rti.findType("core|Map<core|int,_engine|ViewClipChain>")))(),
    SetOfint: () => (T$9.SetOfint = dart.constFn(dart_rti.findType("core|Set<core|int>")))(),
    DisplayCanvasN: () => (T$9.DisplayCanvasN = dart.constFn(dart_rti.findType("_engine|DisplayCanvas?")))(),
    BitmapSizeN: () => (T$9.BitmapSizeN = dart.constFn(dart_rti.findType("_engine|BitmapSize?")))(),
    DomElementN: () => (T$9.DomElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    MapOfint$SetOfString: () => (T$9.MapOfint$SetOfString = dart.constFn(dart_rti.findType("core|Map<core|int,core|Set<core|String>>")))(),
    __Tovoid$10: () => (T$9.__Tovoid$10 = dart.constFn(dart_rti.findType("~({clipCount!core|int,root!_interceptors|JavaScriptObject})")))(),
    MutatorsStack: () => (T$9.MutatorsStack = dart.constFn(dart_rti.findType("_engine|MutatorsStack")))(),
    ListOfMutatorType: () => (T$9.ListOfMutatorType = dart.constFn(dart_rti.findType("core|List<_engine|MutatorType>")))(),
    MutatorType: () => (T$9.MutatorType = dart.constFn(dart_rti.findType("_engine|MutatorType")))(),
    MutatorTypeL: () => (T$9.MutatorTypeL = dart.constFn(dart_rti.findType("_engine|MutatorType*")))(),
    Mutator: () => (T$9.Mutator = dart.constFn(dart_rti.findType("_engine|Mutator")))(),
    RRectN: () => (T$9.RRectN = dart.constFn(dart_rti.findType("ui|RRect?")))(),
    PathN: () => (T$9.PathN = dart.constFn(dart_rti.findType("ui|Path?")))(),
    Matrix4N: () => (T$9.Matrix4N = dart.constFn(dart_rti.findType("_engine|Matrix4?")))(),
    Matrix4Tovoid: () => (T$9.Matrix4Tovoid = dart.constFn(dart_rti.findType("~(_engine|Matrix4)")))(),
    IteratorOfMutator: () => (T$9.IteratorOfMutator = dart.constFn(dart_rti.findType("core|Iterator<_engine|Mutator>")))(),
    IterableOfMutator: () => (T$9.IterableOfMutator = dart.constFn(dart_rti.findType("core|Iterable<_engine|Mutator>")))(),
    ListOfMutator: () => (T$9.ListOfMutator = dart.constFn(dart_rti.findType("core|List<_engine|Mutator>")))(),
    ListOfCkPictureRecorder: () => (T$9.ListOfCkPictureRecorder = dart.constFn(dart_rti.findType("core|List<_engine|CkPictureRecorder>")))(),
    UnregisteredFont: () => (T$9.UnregisteredFont = dart.constFn(dart_rti.findType("_engine|UnregisteredFont")))(),
    RegisteredFont: () => (T$9.RegisteredFont = dart.constFn(dart_rti.findType("_engine|RegisteredFont")))(),
    ListOfSkFont: () => (T$9.ListOfSkFont = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject>")))(),
    TypefaceFontProviderNamespace: () => (T$9.TypefaceFontProviderNamespace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    TypefaceFontProvider: () => (T$9.TypefaceFontProvider = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    FontCollectionNamespace: () => (T$9.FontCollectionNamespace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFontCollection: () => (T$9.SkFontCollection = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFont: () => (T$9.SkFont = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToListOfSkFont: () => (T$9.VoidToListOfSkFont = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject>()")))(),
    SkTypefaceFactory: () => (T$9.SkTypefaceFactory = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    FutureOfFontDownloadResult: () => (T$9.FutureOfFontDownloadResult = dart.constFn(dart_rti.findType("async|Future<_engine|FontDownloadResult>")))(),
    FontLoadError: () => (T$9.FontLoadError = dart.constFn(dart_rti.findType("_engine|FontLoadError")))(),
    RecOfStringAndUnregisteredFont: () => (T$9.RecOfStringAndUnregisteredFont = dart.constFn(dart_rti.findType("+(core|String,_engine|UnregisteredFont)")))(),
    FontDownloadResult: () => (T$9.FontDownloadResult = dart.constFn(dart_rti.findType("_engine|FontDownloadResult")))(),
    AssetFontsResult: () => (T$9.AssetFontsResult = dart.constFn(dart_rti.findType("_engine|AssetFontsResult")))(),
    ByteBufferAndStringAndStringToRegisteredFontN: () => (T$9.ByteBufferAndStringAndStringToRegisteredFontN = dart.constFn(dart_rti.findType("_engine|RegisteredFont?(typed_data|ByteBuffer,core|String,core|String)")))(),
    SkFontMgrNamespace: () => (T$9.SkFontMgrNamespace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    FontFallbackManager: () => (T$9.FontFallbackManager = dart.constFn(dart_rti.findType("_engine|FontFallbackManager")))(),
    ListNOfRegisteredFont: () => (T$9.ListNOfRegisteredFont = dart.constFn(dart_rti.findType("core|List<_engine|RegisteredFont>?")))(),
    Uint8List__ToFutureOfbool: () => (T$9.Uint8List__ToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(typed_data|Uint8List{fontFamily:core|String?})")))(),
    FontManifestToFutureOfAssetFontsResult: () => (T$9.FontManifestToFutureOfAssetFontsResult = dart.constFn(dart_rti.findType("async|Future<_engine|AssetFontsResult>(_engine|FontManifest)")))(),
    StringAndStringAndStringToFutureOfFontDownloadResult: () => (T$9.StringAndStringAndStringToFutureOfFontDownloadResult = dart.constFn(dart_rti.findType("async|Future<_engine|FontDownloadResult>(core|String,core|String,core|String)")))(),
    Uint8ListToStringN: () => (T$9.Uint8ListToStringN = dart.constFn(dart_rti.findType("core|String?(typed_data|Uint8List)")))(),
    FontFallbackManagerN: () => (T$9.FontFallbackManagerN = dart.constFn(dart_rti.findType("_engine|FontFallbackManager?")))(),
    ListOfUnregisteredFont: () => (T$9.ListOfUnregisteredFont = dart.constFn(dart_rti.findType("core|List<_engine|UnregisteredFont>")))(),
    ListOfRegisteredFont: () => (T$9.ListOfRegisteredFont = dart.constFn(dart_rti.findType("core|List<_engine|RegisteredFont>")))(),
    MapOfString$ListOfSkFont: () => (T$9.MapOfString$ListOfSkFont = dart.constFn(dart_rti.findType("core|Map<core|String,core|List<_interceptors|JavaScriptObject>>")))(),
    TypefaceFontProviderN: () => (T$9.TypefaceFontProviderN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SkFontCollectionN: () => (T$9.SkFontCollectionN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SkTypeface: () => (T$9.SkTypeface = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    UnregisteredFontN: () => (T$9.UnregisteredFontN = dart.constFn(dart_rti.findType("_engine|UnregisteredFont?")))(),
    FontLoadErrorN: () => (T$9.FontLoadErrorN = dart.constFn(dart_rti.findType("_engine|FontLoadError?")))(),
    ListOfintAndListOfStringToListOfint: () => (T$9.ListOfintAndListOfStringToListOfint = dart.constFn(dart_rti.findType("core|List<core|int>(core|List<core|int>,core|List<core|String>)")))(),
    StringAndStringToFutureOfvoid: () => (T$9.StringAndStringToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(core|String,core|String)")))(),
    ListOfStringTovoid: () => (T$9.ListOfStringTovoid = dart.constFn(dart_rti.findType("~(core|List<core|String>)")))(),
    SkiaFontCollection: () => (T$9.SkiaFontCollection = dart.constFn(dart_rti.findType("_engine|SkiaFontCollection")))(),
    SkImage: () => (T$9.SkImage = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VideoFrame: () => (T$9.VideoFrame = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkAlphaType: () => (T$9.SkAlphaType = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkAlphaTypeEnum: () => (T$9.SkAlphaTypeEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkColorType: () => (T$9.SkColorType = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkColorTypeEnum: () => (T$9.SkColorTypeEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    CountedRefOfCkImage$SkImage: () => (T$9.CountedRefOfCkImage$SkImage = dart.constFn(dart_rti.findType("_engine|CountedRef<_engine|CkImage,_interceptors|JavaScriptObject>")))(),
    VoidToCkImage: () => (T$9.VoidToCkImage = dart.constFn(dart_rti.findType("_engine|CkImage()")))(),
    __ToFutureOfByteData: () => (T$9.__ToFutureOfByteData = dart.constFn(dart_rti.findType("async|Future<typed_data|ByteData>({format:ui|ImageByteFormat})")))(),
    ImageByteFormatToFutureOfByteData: () => (T$9.ImageByteFormatToFutureOfByteData = dart.constFn(dart_rti.findType("async|Future<typed_data|ByteData>(ui|ImageByteFormat)")))(),
    __ToByteDataN: () => (T$9.__ToByteDataN = dart.constFn(dart_rti.findType("typed_data|ByteData?({alphaType!_interceptors|JavaScriptObject,colorSpace!_interceptors|JavaScriptObject,colorType!_interceptors|JavaScriptObject,format!ui|ImageByteFormat,skImage!_interceptors|JavaScriptObject})")))(),
    CountedRefNOfCkImage$SkImage: () => (T$9.CountedRefNOfCkImage$SkImage = dart.constFn(dart_rti.findType("_engine|CountedRef<_engine|CkImage,_interceptors|JavaScriptObject>?")))(),
    VideoFrameN: () => (T$9.VideoFrameN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    __ToCkImageFilter: () => (T$9.__ToCkImageFilter = dart.constFn(dart_rti.findType("_engine|CkImageFilter({sigmaX!core|double,sigmaY!core|double,tileMode!ui|TileMode})")))(),
    __ToCkImageFilter$1: () => (T$9.__ToCkImageFilter$1 = dart.constFn(dart_rti.findType("_engine|CkImageFilter({colorFilter!_engine|CkColorFilter})")))(),
    __ToCkImageFilter$2: () => (T$9.__ToCkImageFilter$2 = dart.constFn(dart_rti.findType("_engine|CkImageFilter({filterQuality!ui|FilterQuality,matrix!typed_data|Float64List})")))(),
    __ToCkImageFilter$3: () => (T$9.__ToCkImageFilter$3 = dart.constFn(dart_rti.findType("_engine|CkImageFilter({radiusX!core|double,radiusY!core|double})")))(),
    __ToCkImageFilter$4: () => (T$9.__ToCkImageFilter$4 = dart.constFn(dart_rti.findType("_engine|CkImageFilter({inner!_engine|CkImageFilter,outer!_engine|CkImageFilter})")))(),
    CkColorFilterImageFilter: () => (T$9.CkColorFilterImageFilter = dart.constFn(dart_rti.findType("_engine|CkColorFilterImageFilter")))(),
    UniqueRefOfSkImageFilter: () => (T$9.UniqueRefOfSkImageFilter = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    UniqueRefNOfSkImageFilter: () => (T$9.UniqueRefNOfSkImageFilter = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    _CkBlurImageFilter: () => (T$9._CkBlurImageFilter = dart.constFn(dart_rti.findType("_engine|_CkBlurImageFilter")))(),
    _CkMatrixImageFilter: () => (T$9._CkMatrixImageFilter = dart.constFn(dart_rti.findType("_engine|_CkMatrixImageFilter")))(),
    _CkDilateImageFilter: () => (T$9._CkDilateImageFilter = dart.constFn(dart_rti.findType("_engine|_CkDilateImageFilter")))(),
    _CkErodeImageFilter: () => (T$9._CkErodeImageFilter = dart.constFn(dart_rti.findType("_engine|_CkErodeImageFilter")))(),
    _CkComposeImageFilter: () => (T$9._CkComposeImageFilter = dart.constFn(dart_rti.findType("_engine|_CkComposeImageFilter")))(),
    CkImageFilter: () => (T$9.CkImageFilter = dart.constFn(dart_rti.findType("_engine|CkImageFilter")))(),
    SkAnimatedImage: () => (T$9.SkAnimatedImage = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    UniqueRefOfSkAnimatedImage: () => (T$9.UniqueRefOfSkAnimatedImage = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    VoidToSkAnimatedImage: () => (T$9.VoidToSkAnimatedImage = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    SkAnimatedImageAndintNAndintNToSkAnimatedImageN: () => (T$9.SkAnimatedImageAndintNAndintNToSkAnimatedImageN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject,core|int?,core|int?)")))(),
    UniqueRefNOfSkAnimatedImage: () => (T$9.UniqueRefNOfSkAnimatedImage = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    CkBrowserImageDecoder: () => (T$9.CkBrowserImageDecoder = dart.constFn(dart_rti.findType("_engine|CkBrowserImageDecoder")))(),
    ImageDecoder: () => (T$9.ImageDecoder = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    ImageTrackList: () => (T$9.ImageTrackList = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    ImageTrackN: () => (T$9.ImageTrackN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    DomException$1: () => (T$9.DomException$1 = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DecodeResult: () => (T$9.DecodeResult = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    ImageDecoderN: () => (T$9.ImageDecoderN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    VoidToFutureOfImageDecoder: () => (T$9.VoidToFutureOfImageDecoder = dart.constFn(dart_rti.findType("async|Future<_interceptors|JavaScriptObject>()")))(),
    AlarmClock: () => (T$9.AlarmClock = dart.constFn(dart_rti.findType("_engine|AlarmClock")))(),
    __ToFutureOfCkBrowserImageDecoder: () => (T$9.__ToFutureOfCkBrowserImageDecoder = dart.constFn(dart_rti.findType("async|Future<_engine|CkBrowserImageDecoder>({data!typed_data|Uint8List,debugSource!core|String})")))(),
    VideoFrameToImage: () => (T$9.VideoFrameToImage = dart.constFn(dart_rti.findType("ui|Image(_interceptors|JavaScriptObject)")))(),
    ContainerLayerN: () => (T$9.ContainerLayerN = dart.constFn(dart_rti.findType("_engine|ContainerLayer?")))(),
    RasterCacheN: () => (T$9.RasterCacheN = dart.constFn(dart_rti.findType("_engine|RasterCache?")))(),
    HtmlViewEmbedderN: () => (T$9.HtmlViewEmbedderN = dart.constFn(dart_rti.findType("_engine|HtmlViewEmbedder?")))(),
    CkNWayCanvas: () => (T$9.CkNWayCanvas = dart.constFn(dart_rti.findType("_engine|CkNWayCanvas")))(),
    CkCanvasN: () => (T$9.CkCanvasN = dart.constFn(dart_rti.findType("_engine|CkCanvas?")))(),
    Layer: () => (T$9.Layer = dart.constFn(dart_rti.findType("_engine|Layer")))(),
    ListOfLayer: () => (T$9.ListOfLayer = dart.constFn(dart_rti.findType("core|List<_engine|Layer>")))(),
    LayerTovoid: () => (T$9.LayerTovoid = dart.constFn(dart_rti.findType("~(_engine|Layer)")))(),
    PrerollContextAndMatrix4Tovoid: () => (T$9.PrerollContextAndMatrix4Tovoid = dart.constFn(dart_rti.findType("~(_engine|PrerollContext,_engine|Matrix4)")))(),
    PrerollContextAndMatrix4ToRect: () => (T$9.PrerollContextAndMatrix4ToRect = dart.constFn(dart_rti.findType("ui|Rect(_engine|PrerollContext,_engine|Matrix4)")))(),
    PaintContextTovoid: () => (T$9.PaintContextTovoid = dart.constFn(dart_rti.findType("~(_engine|PaintContext)")))(),
    ImageFilter: () => (T$9.ImageFilter = dart.constFn(dart_rti.findType("ui|ImageFilter")))()
  };
  var T$10 = {
    ClipN: () => (T$10.ClipN = dart.constFn(dart_rti.findType("ui|Clip?")))(),
    Shader: () => (T$10.Shader = dart.constFn(dart_rti.findType("ui|Shader")))(),
    intAndintToFutureOfImage: () => (T$10.intAndintToFutureOfImage = dart.constFn(dart_rti.findType("async|Future<ui|Image>(core|int,core|int)")))(),
    intAndintToImage: () => (T$10.intAndintToImage = dart.constFn(dart_rti.findType("ui|Image(core|int,core|int)")))(),
    LayerTree: () => (T$10.LayerTree = dart.constFn(dart_rti.findType("_engine|LayerTree")))(),
    BackdropFilterEngineLayer: () => (T$10.BackdropFilterEngineLayer = dart.constFn(dart_rti.findType("_engine|BackdropFilterEngineLayer")))(),
    ClipPathEngineLayer: () => (T$10.ClipPathEngineLayer = dart.constFn(dart_rti.findType("_engine|ClipPathEngineLayer")))(),
    ClipRRectEngineLayer: () => (T$10.ClipRRectEngineLayer = dart.constFn(dart_rti.findType("_engine|ClipRRectEngineLayer")))(),
    ClipRectEngineLayer: () => (T$10.ClipRectEngineLayer = dart.constFn(dart_rti.findType("_engine|ClipRectEngineLayer")))(),
    ColorFilterEngineLayer: () => (T$10.ColorFilterEngineLayer = dart.constFn(dart_rti.findType("_engine|ColorFilterEngineLayer")))(),
    ImageFilterEngineLayer: () => (T$10.ImageFilterEngineLayer = dart.constFn(dart_rti.findType("_engine|ImageFilterEngineLayer")))(),
    OffsetEngineLayer: () => (T$10.OffsetEngineLayer = dart.constFn(dart_rti.findType("_engine|OffsetEngineLayer")))(),
    OpacityEngineLayer: () => (T$10.OpacityEngineLayer = dart.constFn(dart_rti.findType("_engine|OpacityEngineLayer")))(),
    ShaderMaskEngineLayer: () => (T$10.ShaderMaskEngineLayer = dart.constFn(dart_rti.findType("_engine|ShaderMaskEngineLayer")))(),
    TransformEngineLayer: () => (T$10.TransformEngineLayer = dart.constFn(dart_rti.findType("_engine|TransformEngineLayer")))(),
    ContainerLayer: () => (T$10.ContainerLayer = dart.constFn(dart_rti.findType("_engine|ContainerLayer")))(),
    intAndRectTovoid: () => (T$10.intAndRectTovoid = dart.constFn(dart_rti.findType("~(core|int,ui|Rect)")))(),
    OffsetAndPicture__Tovoid: () => (T$10.OffsetAndPicture__Tovoid = dart.constFn(dart_rti.findType("~(ui|Offset,ui|Picture{isComplexHint:core|bool,willChangeHint:core|bool})")))(),
    EngineLayerTovoid: () => (T$10.EngineLayerTovoid = dart.constFn(dart_rti.findType("~(ui|EngineLayer)")))(),
    int__Tovoid: () => (T$10.int__Tovoid = dart.constFn(dart_rti.findType("~(core|int{filterQuality:ui|FilterQuality,freeze:core|bool,height:core|double,offset:ui|Offset,width:core|double})")))(),
    int__Tovoid$1: () => (T$10.int__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|int{height:core|double,offset:ui|Offset,width:core|double})")))(),
    VoidToLayerScene: () => (T$10.VoidToLayerScene = dart.constFn(dart_rti.findType("_engine|LayerScene()")))(),
    ImageFilter__ToBackdropFilterEngineLayer: () => (T$10.ImageFilter__ToBackdropFilterEngineLayer = dart.constFn(dart_rti.findType("_engine|BackdropFilterEngineLayer(ui|ImageFilter{blendMode:ui|BlendMode,oldLayer:ui|EngineLayer?})")))(),
    Path__ToClipPathEngineLayer: () => (T$10.Path__ToClipPathEngineLayer = dart.constFn(dart_rti.findType("_engine|ClipPathEngineLayer(ui|Path{clipBehavior:ui|Clip,oldLayer:ui|EngineLayer?})")))(),
    RRect__ToClipRRectEngineLayer: () => (T$10.RRect__ToClipRRectEngineLayer = dart.constFn(dart_rti.findType("_engine|ClipRRectEngineLayer(ui|RRect{clipBehavior:ui|Clip?,oldLayer:ui|EngineLayer?})")))(),
    Rect__ToClipRectEngineLayer: () => (T$10.Rect__ToClipRectEngineLayer = dart.constFn(dart_rti.findType("_engine|ClipRectEngineLayer(ui|Rect{clipBehavior:ui|Clip,oldLayer:ui|EngineLayer?})")))(),
    ColorFilter__ToColorFilterEngineLayer: () => (T$10.ColorFilter__ToColorFilterEngineLayer = dart.constFn(dart_rti.findType("_engine|ColorFilterEngineLayer(ui|ColorFilter{oldLayer:ui|ColorFilterEngineLayer?})")))(),
    ImageFilter__ToImageFilterEngineLayer: () => (T$10.ImageFilter__ToImageFilterEngineLayer = dart.constFn(dart_rti.findType("_engine|ImageFilterEngineLayer(ui|ImageFilter{offset:ui|Offset,oldLayer:ui|ImageFilterEngineLayer?})")))(),
    doubleAnddouble__ToOffsetEngineLayer: () => (T$10.doubleAnddouble__ToOffsetEngineLayer = dart.constFn(dart_rti.findType("_engine|OffsetEngineLayer(core|double,core|double{oldLayer:ui|EngineLayer?})")))(),
    int__ToOpacityEngineLayer: () => (T$10.int__ToOpacityEngineLayer = dart.constFn(dart_rti.findType("_engine|OpacityEngineLayer(core|int{offset:ui|Offset,oldLayer:ui|EngineLayer?})")))(),
    ShaderAndRectAndBlendMode__ToShaderMaskEngineLayer: () => (T$10.ShaderAndRectAndBlendMode__ToShaderMaskEngineLayer = dart.constFn(dart_rti.findType("_engine|ShaderMaskEngineLayer(ui|Shader,ui|Rect,ui|BlendMode{filterQuality:ui|FilterQuality,oldLayer:ui|EngineLayer?})")))(),
    Float64List__ToTransformEngineLayer: () => (T$10.Float64List__ToTransformEngineLayer = dart.constFn(dart_rti.findType("_engine|TransformEngineLayer(typed_data|Float64List{oldLayer:ui|EngineLayer?})")))(),
    TToT$2: () => (T$10.TToT$2 = dart.constFn(dart_rti.findType("0^(0^)<_engine|ContainerLayer>")))(),
    doubleAnddoubleAnddouble__Tovoid: () => (T$10.doubleAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|double,core|double,core|bool)")))(),
    RootLayer: () => (T$10.RootLayer = dart.constFn(dart_rti.findType("_engine|RootLayer")))(),
    Frame__Tovoid: () => (T$10.Frame__Tovoid = dart.constFn(dart_rti.findType("~(_engine|Frame{ignoreRasterCache:core|bool})")))(),
    SizeToPicture: () => (T$10.SizeToPicture = dart.constFn(dart_rti.findType("ui|Picture(ui|Size)")))(),
    LayerTree__Tobool: () => (T$10.LayerTree__Tobool = dart.constFn(dart_rti.findType("core|bool(_engine|LayerTree{ignoreRasterCache:core|bool})")))(),
    CkCanvasAndHtmlViewEmbedderNToFrame: () => (T$10.CkCanvasAndHtmlViewEmbedderNToFrame = dart.constFn(dart_rti.findType("_engine|Frame(_engine|CkCanvas,_engine|HtmlViewEmbedder?)")))(),
    SkMaskFilterNamespace: () => (T$10.SkMaskFilterNamespace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkMaskFilter: () => (T$10.SkMaskFilter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    UniqueRefOfSkMaskFilter: () => (T$10.UniqueRefOfSkMaskFilter = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    UniqueRefNOfSkMaskFilter: () => (T$10.UniqueRefNOfSkMaskFilter = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    EngineFlutterView: () => (T$10.EngineFlutterView = dart.constFn(dart_rti.findType("_engine|EngineFlutterView")))(),
    MultiSurfaceViewRasterizer: () => (T$10.MultiSurfaceViewRasterizer = dart.constFn(dart_rti.findType("_engine|MultiSurfaceViewRasterizer")))(),
    VoidToMultiSurfaceViewRasterizer: () => (T$10.VoidToMultiSurfaceViewRasterizer = dart.constFn(dart_rti.findType("_engine|MultiSurfaceViewRasterizer()")))(),
    SurfaceTovoid: () => (T$10.SurfaceTovoid = dart.constFn(dart_rti.findType("~(_engine|Surface)")))(),
    EngineFlutterViewToMultiSurfaceViewRasterizer: () => (T$10.EngineFlutterViewToMultiSurfaceViewRasterizer = dart.constFn(dart_rti.findType("_engine|MultiSurfaceViewRasterizer(_engine|EngineFlutterView)")))(),
    MapOfEngineFlutterView$MultiSurfaceViewRasterizer: () => (T$10.MapOfEngineFlutterView$MultiSurfaceViewRasterizer = dart.constFn(dart_rti.findType("core|Map<_engine|EngineFlutterView,_engine|MultiSurfaceViewRasterizer>")))(),
    Surface: () => (T$10.Surface = dart.constFn(dart_rti.findType("_engine|Surface")))(),
    VoidToSurface: () => (T$10.VoidToSurface = dart.constFn(dart_rti.findType("_engine|Surface()")))(),
    HtmlViewEmbedder: () => (T$10.HtmlViewEmbedder = dart.constFn(dart_rti.findType("_engine|HtmlViewEmbedder")))(),
    LayerTreeToFutureOfvoid: () => (T$10.LayerTreeToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(_engine|LayerTree)")))(),
    VoidToDisplayCanvas: () => (T$10.VoidToDisplayCanvas = dart.constFn(dart_rti.findType("_engine|DisplayCanvas()")))(),
    DisplayCanvasTovoid: () => (T$10.DisplayCanvasTovoid = dart.constFn(dart_rti.findType("~(_engine|DisplayCanvas)")))(),
    RenderQueue: () => (T$10.RenderQueue = dart.constFn(dart_rti.findType("_engine|RenderQueue")))(),
    CompositorContext: () => (T$10.CompositorContext = dart.constFn(dart_rti.findType("_engine|CompositorContext")))(),
    DisplayCanvasAndListOfCkPictureToFutureOfvoid: () => (T$10.DisplayCanvasAndListOfCkPictureToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(_engine|DisplayCanvas,core|List<_engine|CkPicture>)")))(),
    MultiSurfaceRasterizer: () => (T$10.MultiSurfaceRasterizer = dart.constFn(dart_rti.findType("_engine|MultiSurfaceRasterizer")))(),
    DisplayCanvasFactoryOfSurface: () => (T$10.DisplayCanvasFactoryOfSurface = dart.constFn(dart_rti.findType("_engine|DisplayCanvasFactory<_engine|Surface>")))(),
    CkCanvasTovoid: () => (T$10.CkCanvasTovoid = dart.constFn(dart_rti.findType("~(_engine|CkCanvas)")))(),
    ListOfCkCanvas: () => (T$10.ListOfCkCanvas = dart.constFn(dart_rti.findType("core|List<_engine|CkCanvas>")))(),
    UniqueRefOfObject: () => (T$10.UniqueRefOfObject = dart.constFn(dart_rti.findType("_engine|UniqueRef<core|Object>")))(),
    ObjectAndUniqueRefOfObjectTovoid: () => (T$10.ObjectAndUniqueRefOfObjectTovoid = dart.constFn(dart_rti.findType("~(core|Object,_engine|UniqueRef<core|Object>)")))(),
    SkDeletable: () => (T$10.SkDeletable = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToListOfStackTrace: () => (T$10.VoidToListOfStackTrace = dart.constFn(dart_rti.findType("core|List<core|StackTrace>()")))(),
    OffscreenCanvasViewRasterizer: () => (T$10.OffscreenCanvasViewRasterizer = dart.constFn(dart_rti.findType("_engine|OffscreenCanvasViewRasterizer")))(),
    VoidToOffscreenCanvasViewRasterizer: () => (T$10.VoidToOffscreenCanvasViewRasterizer = dart.constFn(dart_rti.findType("_engine|OffscreenCanvasViewRasterizer()")))(),
    EngineFlutterViewToOffscreenCanvasViewRasterizer: () => (T$10.EngineFlutterViewToOffscreenCanvasViewRasterizer = dart.constFn(dart_rti.findType("_engine|OffscreenCanvasViewRasterizer(_engine|EngineFlutterView)")))(),
    MapOfEngineFlutterView$OffscreenCanvasViewRasterizer: () => (T$10.MapOfEngineFlutterView$OffscreenCanvasViewRasterizer = dart.constFn(dart_rti.findType("core|Map<_engine|EngineFlutterView,_engine|OffscreenCanvasViewRasterizer>")))(),
    RenderCanvas: () => (T$10.RenderCanvas = dart.constFn(dart_rti.findType("_engine|RenderCanvas")))(),
    VoidToRenderCanvas: () => (T$10.VoidToRenderCanvas = dart.constFn(dart_rti.findType("_engine|RenderCanvas()")))(),
    OffscreenCanvasRasterizer: () => (T$10.OffscreenCanvasRasterizer = dart.constFn(dart_rti.findType("_engine|OffscreenCanvasRasterizer")))(),
    DisplayCanvasFactoryOfRenderCanvas: () => (T$10.DisplayCanvasFactoryOfRenderCanvas = dart.constFn(dart_rti.findType("_engine|DisplayCanvasFactory<_engine|RenderCanvas>")))(),
    RenderingEntityTovoid: () => (T$10.RenderingEntityTovoid = dart.constFn(dart_rti.findType("~(_engine|RenderingEntity)")))(),
    RenderingTobool: () => (T$10.RenderingTobool = dart.constFn(dart_rti.findType("core|bool(_engine|Rendering)")))(),
    ListOfRenderingRenderCanvas: () => (T$10.ListOfRenderingRenderCanvas = dart.constFn(dart_rti.findType("core|List<_engine|RenderingRenderCanvas>")))(),
    ListOfRenderingEntity: () => (T$10.ListOfRenderingEntity = dart.constFn(dart_rti.findType("core|List<_engine|RenderingEntity>")))(),
    RenderingEntityTobool: () => (T$10.RenderingEntityTobool = dart.constFn(dart_rti.findType("core|bool(_engine|RenderingEntity)")))(),
    ListOfCkPicture: () => (T$10.ListOfCkPicture = dart.constFn(dart_rti.findType("core|List<_engine|CkPicture>")))(),
    SkPaint: () => (T$10.SkPaint = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    CkShaderN: () => (T$10.CkShaderN = dart.constFn(dart_rti.findType("_engine|CkShader?")))(),
    EngineColorFilterN: () => (T$10.EngineColorFilterN = dart.constFn(dart_rti.findType("_engine|EngineColorFilter?")))(),
    CkManagedSkImageFilterConvertibleN: () => (T$10.CkManagedSkImageFilterConvertibleN = dart.constFn(dart_rti.findType("_engine|CkManagedSkImageFilterConvertible?")))(),
    UniqueRefOfSkPaint: () => (T$10.UniqueRefOfSkPaint = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    ShaderN: () => (T$10.ShaderN = dart.constFn(dart_rti.findType("ui|Shader?")))(),
    ColorFilterN: () => (T$10.ColorFilterN = dart.constFn(dart_rti.findType("ui|ColorFilter?")))(),
    ImageFilterN: () => (T$10.ImageFilterN = dart.constFn(dart_rti.findType("ui|ImageFilter?")))(),
    UniqueRefNOfSkPaint: () => (T$10.UniqueRefNOfSkPaint = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    CkMaskFilterN: () => (T$10.CkMaskFilterN = dart.constFn(dart_rti.findType("_engine|CkMaskFilter?")))(),
    StringAndUint8ListToCkFragmentProgram: () => (T$10.StringAndUint8ListToCkFragmentProgram = dart.constFn(dart_rti.findType("_engine|CkFragmentProgram(core|String,typed_data|Uint8List)")))(),
    VoidToFragmentShader: () => (T$10.VoidToFragmentShader = dart.constFn(dart_rti.findType("ui|FragmentShader()")))(),
    SkRuntimeEffect: () => (T$10.SkRuntimeEffect = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    ListOfUniformData: () => (T$10.ListOfUniformData = dart.constFn(dart_rti.findType("core|List<_engine|UniformData>")))(),
    SkShaderN: () => (T$10.SkShaderN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SkShader: () => (T$10.SkShader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    CkShader: () => (T$10.CkShader = dart.constFn(dart_rti.findType("_engine|CkShader")))(),
    CkImageShader: () => (T$10.CkImageShader = dart.constFn(dart_rti.findType("_engine|CkImageShader")))(),
    FilterQualityToSkShader: () => (T$10.FilterQualityToSkShader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(ui|FilterQuality)")))(),
    intAnddoubleTovoid: () => (T$10.intAnddoubleTovoid = dart.constFn(dart_rti.findType("~(core|int,core|double)")))(),
    intAndImageTovoid: () => (T$10.intAndImageTovoid = dart.constFn(dart_rti.findType("~(core|int,ui|Image)")))(),
    SkFloat32List: () => (T$10.SkFloat32List = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    ListOfSkShaderN: () => (T$10.ListOfSkShaderN = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject?>")))(),
    UniqueRefNOfSkShader: () => (T$10.UniqueRefNOfSkShader = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    SkPath: () => (T$10.SkPath = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkPathNamespace: () => (T$10.SkPathNamespace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToCkPath: () => (T$10.VoidToCkPath = dart.constFn(dart_rti.findType("_engine|CkPath()")))(),
    CkPathToCkPath: () => (T$10.CkPathToCkPath = dart.constFn(dart_rti.findType("_engine|CkPath(_engine|CkPath)")))(),
    SkPathAndPathFillTypeToCkPath: () => (T$10.SkPathAndPathFillTypeToCkPath = dart.constFn(dart_rti.findType("_engine|CkPath(_interceptors|JavaScriptObject,ui|PathFillType)")))(),
    UniqueRefOfSkPath: () => (T$10.UniqueRefOfSkPath = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    RectAnddoubleAnddoubleTovoid: () => (T$10.RectAnddoubleAnddoubleTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,core|double,core|double)")))(),
    PathAndOffset__Tovoid: () => (T$10.PathAndOffset__Tovoid = dart.constFn(dart_rti.findType("~(ui|Path,ui|Offset{matrix4:typed_data|Float64List?})")))(),
    ListOfOffsetAndboolTovoid: () => (T$10.ListOfOffsetAndboolTovoid = dart.constFn(dart_rti.findType("~(core|List<ui|Offset>,core|bool)")))(),
    RectAnddoubleAnddouble__Tovoid$2: () => (T$10.RectAnddoubleAnddouble__Tovoid$2 = dart.constFn(dart_rti.findType("~(ui|Rect,core|double,core|double,core|bool)")))(),
    Offset__Tovoid: () => (T$10.Offset__Tovoid = dart.constFn(dart_rti.findType("~(ui|Offset{clockwise:core|bool,largeArc:core|bool,radius:ui|Radius,rotation:core|double})")))(),
    __ToPathMetrics: () => (T$10.__ToPathMetrics = dart.constFn(dart_rti.findType("ui|PathMetrics({forceClosed:core|bool})")))(),
    doubleAnddoubleAnddouble__Tovoid$1: () => (T$10.doubleAnddoubleAnddouble__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|double)")))(),
    doubleAnddoubleAnddouble__Tovoid$2: () => (T$10.doubleAnddoubleAnddouble__Tovoid$2 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    doubleAnddoubleAnddouble__Tovoid$3: () => (T$10.doubleAnddoubleAnddouble__Tovoid$3 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double)")))(),
    OffsetToCkPath: () => (T$10.OffsetToCkPath = dart.constFn(dart_rti.findType("_engine|CkPath(ui|Offset)")))(),
    PathOperationAndPathAndPathToCkPath: () => (T$10.PathOperationAndPathAndPathToCkPath = dart.constFn(dart_rti.findType("_engine|CkPath(ui|PathOperation,ui|Path,ui|Path)")))(),
    Float64ListToPath: () => (T$10.Float64ListToPath = dart.constFn(dart_rti.findType("ui|Path(typed_data|Float64List)")))(),
    UniqueRefNOfSkPath: () => (T$10.UniqueRefNOfSkPath = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    CkPathMetrics: () => (T$10.CkPathMetrics = dart.constFn(dart_rti.findType("_engine|CkPathMetrics")))(),
    IteratorOfPathMetric: () => (T$10.IteratorOfPathMetric = dart.constFn(dart_rti.findType("core|Iterator<ui|PathMetric>")))(),
    IteratorNOfPathMetric: () => (T$10.IteratorNOfPathMetric = dart.constFn(dart_rti.findType("core|Iterator<ui|PathMetric>?")))(),
    SkContourMeasureN: () => (T$10.SkContourMeasureN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    UniqueRefOfSkContourMeasureIter: () => (T$10.UniqueRefOfSkContourMeasureIter = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    PathMetric: () => (T$10.PathMetric = dart.constFn(dart_rti.findType("ui|PathMetric")))(),
    UniqueRefNOfSkContourMeasureIter: () => (T$10.UniqueRefNOfSkContourMeasureIter = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    CkContourMeasureN: () => (T$10.CkContourMeasureN = dart.constFn(dart_rti.findType("_engine|CkContourMeasure?")))(),
    SkContourMeasure: () => (T$10.SkContourMeasure = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    UniqueRefOfSkContourMeasure: () => (T$10.UniqueRefOfSkContourMeasure = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    doubleAnddouble__ToPath: () => (T$10.doubleAnddouble__ToPath = dart.constFn(dart_rti.findType("ui|Path(core|double,core|double{startWithMoveTo:core|bool})")))(),
    doubleToTangent: () => (T$10.doubleToTangent = dart.constFn(dart_rti.findType("ui|Tangent(core|double)")))(),
    UniqueRefNOfSkContourMeasure: () => (T$10.UniqueRefNOfSkContourMeasure = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    SkPicture: () => (T$10.SkPicture = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    Image: () => (T$10.Image = dart.constFn(dart_rti.findType("ui|Image")))(),
    UniqueRefOfSkPicture: () => (T$10.UniqueRefOfSkPicture = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    intAndintToCkImage: () => (T$10.intAndintToCkImage = dart.constFn(dart_rti.findType("_engine|CkImage(core|int,core|int)")))(),
    UniqueRefNOfSkPicture: () => (T$10.UniqueRefNOfSkPicture = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    SkPictureRecorder: () => (T$10.SkPictureRecorder = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    RectToCkCanvas: () => (T$10.RectToCkCanvas = dart.constFn(dart_rti.findType("_engine|CkCanvas(ui|Rect)")))(),
    VoidToCkPicture: () => (T$10.VoidToCkPicture = dart.constFn(dart_rti.findType("_engine|CkPicture()")))(),
    SkPictureRecorderN: () => (T$10.SkPictureRecorderN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    PictureAndMatrix4Andbool__Tovoid: () => (T$10.PictureAndMatrix4Andbool__Tovoid = dart.constFn(dart_rti.findType("~(ui|Picture,_engine|Matrix4,core|bool,core|bool)")))(),
    PictureAndMatrix4ToRasterCacheResult: () => (T$10.PictureAndMatrix4ToRasterCacheResult = dart.constFn(dart_rti.findType("_engine|RasterCacheResult(ui|Picture,_engine|Matrix4)")))(),
    RecNOf__: () => (T$10.RecNOf__ = dart.constFn(dart_rti.findType("+completer,recorder,scene(async|Completer<~>,_engine|FrameTimingRecorder?,ui|Scene)?")))(),
    DomCanvasRenderingContextBitmapRenderer: () => (T$10.DomCanvasRenderingContextBitmapRenderer = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomImageBitmapTovoid: () => (T$10.DomImageBitmapTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject)")))(),
    DomCanvasImageSourceAndintAndBitmapSizeTovoid: () => (T$10.DomCanvasImageSourceAndintAndBitmapSizeTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|int,_engine|BitmapSize)")))(),
    BitmapSizeTovoid: () => (T$10.BitmapSizeTovoid = dart.constFn(dart_rti.findType("~(_engine|BitmapSize)")))(),
    DomCanvasRenderingContextBitmapRendererN: () => (T$10.DomCanvasRenderingContextBitmapRendererN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    ListOfCanvasKitVariant: () => (T$10.ListOfCanvasKitVariant = dart.constFn(dart_rti.findType("core|List<_engine|CanvasKitVariant>")))(),
    CanvasKitVariant: () => (T$10.CanvasKitVariant = dart.constFn(dart_rti.findType("_engine|CanvasKitVariant")))(),
    CanvasKitVariantL: () => (T$10.CanvasKitVariantL = dart.constFn(dart_rti.findType("_engine|CanvasKitVariant*")))(),
    CanvasKit: () => (T$10.CanvasKit = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    CkPaintN: () => (T$10.CkPaintN = dart.constFn(dart_rti.findType("_engine|CkPaint?")))(),
    LayerScene: () => (T$10.LayerScene = dart.constFn(dart_rti.findType("_engine|LayerScene")))(),
    FragmentProgram: () => (T$10.FragmentProgram = dart.constFn(dart_rti.findType("ui|FragmentProgram")))(),
    ByteDataToCkFragmentProgram: () => (T$10.ByteDataToCkFragmentProgram = dart.constFn(dart_rti.findType("_engine|CkFragmentProgram(typed_data|ByteData)")))(),
    CanvasKitRenderer: () => (T$10.CanvasKitRenderer = dart.constFn(dart_rti.findType("_engine|CanvasKitRenderer")))(),
    VoidToRasterizer: () => (T$10.VoidToRasterizer = dart.constFn(dart_rti.findType("_engine|Rasterizer()")))(),
    RasterizerTovoid: () => (T$10.RasterizerTovoid = dart.constFn(dart_rti.findType("~(_engine|Rasterizer)")))(),
    OffsetAndOffsetAndListOfColor__ToGradient$1: () => (T$10.OffsetAndOffsetAndListOfColor__ToGradient$1 = dart.constFn(dart_rti.findType("ui|Gradient(ui|Offset,ui|Offset,core|List<ui|Color>[core|List<core|double>?,ui|TileMode,typed_data|Float32List?])")))(),
    OffsetAnddoubleAndListOfColor__ToGradient$1: () => (T$10.OffsetAnddoubleAndListOfColor__ToGradient$1 = dart.constFn(dart_rti.findType("ui|Gradient(ui|Offset,core|double,core|List<ui|Color>[core|List<core|double>?,ui|TileMode,typed_data|Float32List?])")))(),
    OffsetAnddoubleAndOffset__ToGradient: () => (T$10.OffsetAnddoubleAndOffset__ToGradient = dart.constFn(dart_rti.findType("ui|Gradient(ui|Offset,core|double,ui|Offset,core|double,core|List<ui|Color>[core|List<core|double>?,ui|TileMode,typed_data|Float32List?])")))(),
    OffsetAndListOfColorAndListNOfdouble__ToGradient$1: () => (T$10.OffsetAndListOfColorAndListNOfdouble__ToGradient$1 = dart.constFn(dart_rti.findType("ui|Gradient(ui|Offset,core|List<ui|Color>[core|List<core|double>?,ui|TileMode,core|double,core|double,typed_data|Float32List?])")))(),
    Uint8List__ToFutureOfCodec: () => (T$10.Uint8List__ToFutureOfCodec = dart.constFn(dart_rti.findType("async|Future<ui|Codec>(typed_data|Uint8List{allowUpscaling:core|bool,targetHeight:core|int?,targetWidth:core|int?})")))(),
    Uri__ToFutureOfCodec: () => (T$10.Uri__ToFutureOfCodec = dart.constFn(dart_rti.findType("async|Future<ui|Codec>(core|Uri{chunkCallback:~(core|int,core|int)?})")))(),
    DomImageBitmapToImage: () => (T$10.DomImageBitmapToImage = dart.constFn(dart_rti.findType("ui|Image(_interceptors|JavaScriptObject)")))(),
    Object__ToFutureOrOfImage: () => (T$10.Object__ToFutureOrOfImage = dart.constFn(dart_rti.findType("ui|Image/(core|Object{height!core|int,transferOwnership!core|bool,width!core|int})")))(),
    Uint8ListAndintAndint__Tovoid: () => (T$10.Uint8ListAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(typed_data|Uint8List,core|int,core|int,ui|PixelFormat,~(ui|Image){allowUpscaling:core|bool,rowBytes:core|int?,targetHeight:core|int?,targetWidth:core|int?})")))(),
    ImageAndTileModeAndTileMode__ToImageShader$1: () => (T$10.ImageAndTileModeAndTileMode__ToImageShader$1 = dart.constFn(dart_rti.findType("ui|ImageShader(ui|Image,ui|TileMode,ui|TileMode,typed_data|Float64List,ui|FilterQuality?)")))(),
    SceneAndFlutterViewToFutureOfvoid: () => (T$10.SceneAndFlutterViewToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(ui|Scene,ui|FlutterView)")))(),
    ViewRasterizerToFutureOfvoid: () => (T$10.ViewRasterizerToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(_engine|ViewRasterizer)")))(),
    SceneAndViewRasterizerAndFrameTimingRecorderNToFutureOfvoid: () => (T$10.SceneAndViewRasterizerAndFrameTimingRecorderNToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(ui|Scene,_engine|ViewRasterizer,_engine|FrameTimingRecorder?)")))(),
    EngineFlutterViewToViewRasterizerN: () => (T$10.EngineFlutterViewToViewRasterizerN = dart.constFn(dart_rti.findType("_engine|ViewRasterizer?(_engine|EngineFlutterView)")))(),
    CanvasKitRendererN: () => (T$10.CanvasKitRendererN = dart.constFn(dart_rti.findType("_engine|CanvasKitRenderer?")))(),
    FutureNOfvoid: () => (T$10.FutureNOfvoid = dart.constFn(dart_rti.findType("async|Future<~>?")))(),
    SkiaFontCollectionN: () => (T$10.SkiaFontCollectionN = dart.constFn(dart_rti.findType("_engine|SkiaFontCollection?")))(),
    Rasterizer: () => (T$10.Rasterizer = dart.constFn(dart_rti.findType("_engine|Rasterizer")))(),
    StreamSubscriptionNOfint: () => (T$10.StreamSubscriptionNOfint = dart.constFn(dart_rti.findType("async|StreamSubscription<core|int>?")))(),
    MapOfint$ViewRasterizer: () => (T$10.MapOfint$ViewRasterizer = dart.constFn(dart_rti.findType("core|Map<core|int,_engine|ViewRasterizer>")))(),
    MapOfString$FutureOfFragmentProgram: () => (T$10.MapOfString$FutureOfFragmentProgram = dart.constFn(dart_rti.findType("core|Map<core|String,async|Future<ui|FragmentProgram>>")))(),
    FutureOfFragmentProgram: () => (T$10.FutureOfFragmentProgram = dart.constFn(dart_rti.findType("async|Future<ui|FragmentProgram>")))(),
    UniqueRefOfSkShader: () => (T$10.UniqueRefOfSkShader = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    SkShaderNamespace: () => (T$10.SkShaderNamespace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToSkShader: () => (T$10.VoidToSkShader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    ListOfColor: () => (T$10.ListOfColor = dart.constFn(dart_rti.findType("core|List<ui|Color>")))(),
    ListNOfdouble: () => (T$10.ListNOfdouble = dart.constFn(dart_rti.findType("core|List<core|double>?")))(),
    FilterQualityTovoid: () => (T$10.FilterQualityTovoid = dart.constFn(dart_rti.findType("~(ui|FilterQuality)")))(),
    FilterQualityN: () => (T$10.FilterQualityN = dart.constFn(dart_rti.findType("ui|FilterQuality?")))(),
    CkSurface: () => (T$10.CkSurface = dart.constFn(dart_rti.findType("_engine|CkSurface")))(),
    SurfaceFrameAndCkCanvasTobool: () => (T$10.SurfaceFrameAndCkCanvasTobool = dart.constFn(dart_rti.findType("core|bool(_engine|SurfaceFrame,_engine|CkCanvas)")))(),
    DomCanvasImageSource: () => (T$10.DomCanvasImageSource = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomEventTargetN: () => (T$10.DomEventTargetN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SkSurface: () => (T$10.SkSurface = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomOffscreenCanvasN: () => (T$10.DomOffscreenCanvasN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    VoidToCkCanvas: () => (T$10.VoidToCkCanvas = dart.constFn(dart_rti.findType("_engine|CkCanvas()")))(),
    BitmapSizeAndRenderCanvasAndListOfCkPictureToFutureOfvoid: () => (T$10.BitmapSizeAndRenderCanvasAndListOfCkPictureToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(_engine|BitmapSize,_engine|RenderCanvas,core|List<_engine|CkPicture>)")))(),
    SizeToSurfaceFrame: () => (T$10.SizeToSurfaceFrame = dart.constFn(dart_rti.findType("_engine|SurfaceFrame(ui|Size)")))(),
    BitmapSizeTovoid$1: () => (T$10.BitmapSizeTovoid$1 = dart.constFn(dart_rti.findType("~([_engine|BitmapSize])")))(),
    BitmapSizeToCkSurface: () => (T$10.BitmapSizeToCkSurface = dart.constFn(dart_rti.findType("_engine|CkSurface(_engine|BitmapSize)")))(),
    DomEventTovoid: () => (T$10.DomEventTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject)")))(),
    StringToCkSurface: () => (T$10.StringToCkSurface = dart.constFn(dart_rti.findType("_engine|CkSurface(core|String)")))(),
    CkSurfaceN: () => (T$10.CkSurfaceN = dart.constFn(dart_rti.findType("_engine|CkSurface?")))(),
    DomEventListenerN: () => (T$10.DomEventListenerN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SkGrContextN: () => (T$10.SkGrContextN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    CkStrutStyle: () => (T$10.CkStrutStyle = dart.constFn(dart_rti.findType("_engine|CkStrutStyle")))(),
    SkParagraphStyle: () => (T$10.SkParagraphStyle = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    CkParagraphStyle: () => (T$10.CkParagraphStyle = dart.constFn(dart_rti.findType("_engine|CkParagraphStyle")))(),
    StringNAnddoubleNAnddoubleN__ToSkTextStyleProperties: () => (T$10.StringNAnddoubleNAnddoubleN__ToSkTextStyleProperties = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String?,core|double?,core|double?,ui|FontWeight?,ui|FontStyle?)")))(),
    StrutStyleAndTextHeightBehaviorNToSkStrutStyleProperties: () => (T$10.StrutStyleAndTextHeightBehaviorNToSkStrutStyleProperties = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(ui|StrutStyle,ui|TextHeightBehavior?)")))(),
    TextAlignNAndTextDirectionNAndintN__ToSkParagraphStyle: () => (T$10.TextAlignNAndTextDirectionNAndintN__ToSkParagraphStyle = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(ui|TextAlign?,ui|TextDirection?,core|int?,core|String?,core|double?,core|double?,ui|TextHeightBehavior?,ui|FontWeight?,ui|FontStyle?,ui|StrutStyle?,core|String?,ui|Locale?)")))(),
    VoidToCkTextStyle: () => (T$10.VoidToCkTextStyle = dart.constFn(dart_rti.findType("_engine|CkTextStyle()")))(),
    TextAlignN: () => (T$10.TextAlignN = dart.constFn(dart_rti.findType("ui|TextAlign?")))(),
    TextDirectionN: () => (T$10.TextDirectionN = dart.constFn(dart_rti.findType("ui|TextDirection?")))(),
    FontWeightN: () => (T$10.FontWeightN = dart.constFn(dart_rti.findType("ui|FontWeight?")))(),
    FontStyleN: () => (T$10.FontStyleN = dart.constFn(dart_rti.findType("ui|FontStyle?")))(),
    TextHeightBehaviorN: () => (T$10.TextHeightBehaviorN = dart.constFn(dart_rti.findType("ui|TextHeightBehavior?")))(),
    StrutStyleN: () => (T$10.StrutStyleN = dart.constFn(dart_rti.findType("ui|StrutStyle?")))(),
    LocaleN: () => (T$10.LocaleN = dart.constFn(dart_rti.findType("ui|Locale?")))(),
    SkTextShadow: () => (T$10.SkTextShadow = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFontFeature: () => (T$10.SkFontFeature = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFontVariation: () => (T$10.SkFontVariation = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextStyle: () => (T$10.SkTextStyle = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToSkTextStyle: () => (T$10.VoidToSkTextStyle = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    CkTextStyle: () => (T$10.CkTextStyle = dart.constFn(dart_rti.findType("_engine|CkTextStyle")))(),
    __ToCkTextStyle: () => (T$10.__ToCkTextStyle = dart.constFn(dart_rti.findType("_engine|CkTextStyle({background:_engine|CkPaint?,color:ui|Color?,decoration:ui|TextDecoration?,decorationColor:ui|Color?,decorationStyle:ui|TextDecorationStyle?,decorationThickness:core|double?,fontFamily:core|String?,fontFamilyFallback:core|List<core|String>?,fontFeatures:core|List<ui|FontFeature>?,fontSize:core|double?,fontStyle:ui|FontStyle?,fontVariations:core|List<ui|FontVariation>?,fontWeight:ui|FontWeight?,foreground:_engine|CkPaint?,height:core|double?,leadingDistribution:ui|TextLeadingDistribution?,letterSpacing:core|double?,locale:ui|Locale?,shadows:core|List<ui|Shadow>?,textBaseline:ui|TextBaseline?,wordSpacing:core|double?})")))(),
    CkTextStyleToCkTextStyle: () => (T$10.CkTextStyleToCkTextStyle = dart.constFn(dart_rti.findType("_engine|CkTextStyle(_engine|CkTextStyle)")))(),
    ColorN: () => (T$10.ColorN = dart.constFn(dart_rti.findType("ui|Color?")))(),
    TextDecorationN: () => (T$10.TextDecorationN = dart.constFn(dart_rti.findType("ui|TextDecoration?")))(),
    TextDecorationStyleN: () => (T$10.TextDecorationStyleN = dart.constFn(dart_rti.findType("ui|TextDecorationStyle?")))(),
    TextBaselineN: () => (T$10.TextBaselineN = dart.constFn(dart_rti.findType("ui|TextBaseline?")))(),
    TextLeadingDistributionN: () => (T$10.TextLeadingDistributionN = dart.constFn(dart_rti.findType("ui|TextLeadingDistribution?")))(),
    ListNOfShadow: () => (T$10.ListNOfShadow = dart.constFn(dart_rti.findType("core|List<ui|Shadow>?")))(),
    ListNOfFontFeature: () => (T$10.ListNOfFontFeature = dart.constFn(dart_rti.findType("core|List<ui|FontFeature>?")))(),
    ListNOfFontVariation: () => (T$10.ListNOfFontVariation = dart.constFn(dart_rti.findType("core|List<ui|FontVariation>?")))(),
    SkTextStyleN: () => (T$10.SkTextStyleN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SkParagraph: () => (T$10.SkParagraph = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    TextBoxL: () => (T$10.TextBoxL = dart.constFn(dart_rti.findType("ui|TextBox*")))(),
    SkTextDirection: () => (T$10.SkTextDirection = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    LineMetrics: () => (T$10.LineMetrics = dart.constFn(dart_rti.findType("ui|LineMetrics")))(),
    UniqueRefOfSkParagraph: () => (T$10.UniqueRefOfSkParagraph = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    VoidToListOfTextBox: () => (T$10.VoidToListOfTextBox = dart.constFn(dart_rti.findType("core|List<ui|TextBox>()")))(),
    ListOfTextBox: () => (T$10.ListOfTextBox = dart.constFn(dart_rti.findType("core|List<ui|TextBox>")))(),
    intAndint__ToListOfTextBox: () => (T$10.intAndint__ToListOfTextBox = dart.constFn(dart_rti.findType("core|List<ui|TextBox>(core|int,core|int{boxHeightStyle:ui|BoxHeightStyle,boxWidthStyle:ui|BoxWidthStyle})")))(),
    ListOfSkRectWithDirectionToListOfTextBox: () => (T$10.ListOfSkRectWithDirectionToListOfTextBox = dart.constFn(dart_rti.findType("core|List<ui|TextBox>(core|List<_interceptors|JavaScriptObject>)")))(),
    OffsetToTextPosition: () => (T$10.OffsetToTextPosition = dart.constFn(dart_rti.findType("ui|TextPosition(ui|Offset)")))(),
    OffsetToGlyphInfoN: () => (T$10.OffsetToGlyphInfoN = dart.constFn(dart_rti.findType("ui|GlyphInfo?(ui|Offset)")))(),
    intToGlyphInfoN: () => (T$10.intToGlyphInfoN = dart.constFn(dart_rti.findType("ui|GlyphInfo?(core|int)")))(),
    TextPositionToTextRange: () => (T$10.TextPositionToTextRange = dart.constFn(dart_rti.findType("ui|TextRange(ui|TextPosition)")))(),
    ParagraphConstraintsTovoid: () => (T$10.ParagraphConstraintsTovoid = dart.constFn(dart_rti.findType("~(ui|ParagraphConstraints)")))(),
    VoidToListOfLineMetrics: () => (T$10.VoidToListOfLineMetrics = dart.constFn(dart_rti.findType("core|List<ui|LineMetrics>()")))(),
    intToLineMetricsN: () => (T$10.intToLineMetricsN = dart.constFn(dart_rti.findType("ui|LineMetrics?(core|int)")))(),
    intTointN: () => (T$10.intTointN = dart.constFn(dart_rti.findType("core|int?(core|int)")))(),
    UniqueRefNOfSkParagraph: () => (T$10.UniqueRefNOfSkParagraph = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    ListNOfTextBox: () => (T$10.ListNOfTextBox = dart.constFn(dart_rti.findType("core|List<ui|TextBox>?")))(),
    SkLineMetrics: () => (T$10.SkLineMetrics = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkParagraphBuilderNamespace: () => (T$10.SkParagraphBuilderNamespace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkParagraphBuilder: () => (T$10.SkParagraphBuilder = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    doubleAnddoubleAndPlaceholderAlignment__Tovoid: () => (T$10.doubleAnddoubleAndPlaceholderAlignment__Tovoid = dart.constFn(dart_rti.findType("~(core|double,core|double,ui|PlaceholderAlignment{baseline:ui|TextBaseline?,baselineOffset:core|double?,scale:core|double})")))(),
    _CkParagraphPlaceholderTovoid: () => (T$10._CkParagraphPlaceholderTovoid = dart.constFn(dart_rti.findType("~(_engine|_CkParagraphPlaceholder)")))(),
    doubleAnddoubleAndPlaceholderAlignment__To_CkParagraphPlaceholder: () => (T$10.doubleAnddoubleAndPlaceholderAlignment__To_CkParagraphPlaceholder = dart.constFn(dart_rti.findType("_engine|_CkParagraphPlaceholder(core|double,core|double,ui|PlaceholderAlignment,core|double,ui|TextBaseline)")))(),
    VoidToCkParagraph: () => (T$10.VoidToCkParagraph = dart.constFn(dart_rti.findType("_engine|CkParagraph()")))(),
    VoidToSkParagraph: () => (T$10.VoidToSkParagraph = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    TextStyleTovoid: () => (T$10.TextStyleTovoid = dart.constFn(dart_rti.findType("~(ui|TextStyle)")))(),
    ListOfCkTextStyle: () => (T$10.ListOfCkTextStyle = dart.constFn(dart_rti.findType("core|List<_engine|CkTextStyle>")))(),
    SkPlaceholderAlignment: () => (T$10.SkPlaceholderAlignment = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextBaseline: () => (T$10.SkTextBaseline = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    ListOfIntlSegmenterGranularity: () => (T$10.ListOfIntlSegmenterGranularity = dart.constFn(dart_rti.findType("core|List<_engine|IntlSegmenterGranularity>")))(),
    IntlSegmenterGranularity: () => (T$10.IntlSegmenterGranularity = dart.constFn(dart_rti.findType("_engine|IntlSegmenterGranularity")))(),
    IntlSegmenterGranularityL: () => (T$10.IntlSegmenterGranularityL = dart.constFn(dart_rti.findType("_engine|IntlSegmenterGranularity*")))(),
    SkVertices: () => (T$10.SkVertices = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VertexModeAndListOfOffset__ToCkVertices: () => (T$10.VertexModeAndListOfOffset__ToCkVertices = dart.constFn(dart_rti.findType("_engine|CkVertices(ui|VertexMode,core|List<ui|Offset>{colors:core|List<ui|Color>?,indices:core|List<core|int>?,textureCoordinates:core|List<ui|Offset>?})")))(),
    VertexModeAndFloat32List__ToCkVertices: () => (T$10.VertexModeAndFloat32List__ToCkVertices = dart.constFn(dart_rti.findType("_engine|CkVertices(ui|VertexMode,typed_data|Float32List{colors:typed_data|Int32List?,indices:typed_data|Uint16List?,textureCoordinates:typed_data|Float32List?})")))(),
    UniqueRefOfSkVertices: () => (T$10.UniqueRefOfSkVertices = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>")))(),
    SkVertexMode: () => (T$10.SkVertexMode = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    Uint32ListN: () => (T$10.Uint32ListN = dart.constFn(dart_rti.findType("typed_data|Uint32List?")))(),
    UniqueRefNOfSkVertices: () => (T$10.UniqueRefNOfSkVertices = dart.constFn(dart_rti.findType("_engine|UniqueRef<_interceptors|JavaScriptObject>?")))(),
    MapOfString$ObjectN: () => (T$10.MapOfString$ObjectN = dart.constFn(dart_rti.findType("core|Map<core|String,core|Object?>")))(),
    StringToNull: () => (T$10.StringToNull = dart.constFn(dart_rti.findType("core|Null(core|String)")))(),
    UnimplementedError: () => (T$10.UnimplementedError = dart.constFn(dart_rti.findType("core|UnimplementedError")))(),
    MethodCallAndFnTovoid: () => (T$10.MethodCallAndFnTovoid = dart.constFn(dart_rti.findType("~(_engine|MethodCall,~(typed_data|ByteData?)?)")))(),
    FnTovoid$39: () => (T$10.FnTovoid$39 = dart.constFn(dart_rti.findType("~(~(typed_data|ByteData?)?)")))(),
    FnAndMethodCodecAnddynamicTovoid: () => (T$10.FnAndMethodCodecAnddynamicTovoid = dart.constFn(dart_rti.findType("~(~(typed_data|ByteData?)?,_engine|MethodCodec,@)")))(),
    PasteFromClipboardStrategy: () => (T$10.PasteFromClipboardStrategy = dart.constFn(dart_rti.findType("_engine|PasteFromClipboardStrategy")))(),
    CopyToClipboardStrategy: () => (T$10.CopyToClipboardStrategy = dart.constFn(dart_rti.findType("_engine|CopyToClipboardStrategy")))(),
    DomClipboardN: () => (T$10.DomClipboardN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    VoidToCopyToClipboardStrategy: () => (T$10.VoidToCopyToClipboardStrategy = dart.constFn(dart_rti.findType("_engine|CopyToClipboardStrategy()")))(),
    VoidToPasteFromClipboardStrategy: () => (T$10.VoidToPasteFromClipboardStrategy = dart.constFn(dart_rti.findType("_engine|PasteFromClipboardStrategy()")))(),
    StringNToFutureOfbool: () => (T$10.StringNToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(core|String?)")))(),
    DomHTMLBodyElementN: () => (T$10.DomHTMLBodyElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    VoidToDomHTMLTextAreaElement: () => (T$10.VoidToDomHTMLTextAreaElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    ListOfColorFilterType: () => (T$10.ListOfColorFilterType = dart.constFn(dart_rti.findType("core|List<_engine|ColorFilterType>")))(),
    ColorFilterType: () => (T$10.ColorFilterType = dart.constFn(dart_rti.findType("_engine|ColorFilterType")))(),
    ColorFilterTypeL: () => (T$10.ColorFilterTypeL = dart.constFn(dart_rti.findType("_engine|ColorFilterType*")))(),
    JsFlutterConfiguration: () => (T$10.JsFlutterConfiguration = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    JsFlutterConfigurationNToFlutterConfiguration: () => (T$10.JsFlutterConfigurationNToFlutterConfiguration = dart.constFn(dart_rti.findType("_engine|FlutterConfiguration(_interceptors|JavaScriptObject?)")))(),
    JsFlutterConfigurationNTovoid: () => (T$10.JsFlutterConfigurationNTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject?)")))(),
    JsFlutterConfigurationN: () => (T$10.JsFlutterConfigurationN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    EngineFlutterDisplay: () => (T$10.EngineFlutterDisplay = dart.constFn(dart_rti.findType("_engine|EngineFlutterDisplay")))(),
    doubleNTovoid: () => (T$10.doubleNTovoid = dart.constFn(dart_rti.findType("~(core|double?)")))(),
    DomScreenN: () => (T$10.DomScreenN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    DomScreenOrientationN: () => (T$10.DomScreenOrientationN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    ScreenOrientation: () => (T$10.ScreenOrientation = dart.constFn(dart_rti.findType("_engine|ScreenOrientation")))(),
    ListToFutureOfbool: () => (T$10.ListToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(core|List<@>)")))(),
    DomProgressEvent: () => (T$10.DomProgressEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHeaders: () => (T$10.DomHeaders = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    HttpFetchPayload: () => (T$10.HttpFetchPayload = dart.constFn(dart_rti.findType("_engine|HttpFetchPayload")))(),
    DomResponse: () => (T$10.DomResponse = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    HttpFetchPayloadN: () => (T$10.HttpFetchPayloadN = dart.constFn(dart_rti.findType("_engine|HttpFetchPayload?")))(),
    _DomReadableStream: () => (T$10._DomReadableStream = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    _DomStreamReader: () => (T$10._DomStreamReader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    FnToFutureOfvoid$2: () => (T$10.FnToFutureOfvoid$2 = dart.constFn(dart_rti.findType("async|Future<~>(~(0^))<core|Object?>")))(),
    VoidToFutureOfByteBuffer: () => (T$10.VoidToFutureOfByteBuffer = dart.constFn(dart_rti.findType("async|Future<typed_data|ByteBuffer>()")))(),
    DomEventTarget: () => (T$10.DomEventTarget = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    _DomList: () => (T$10._DomList = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    _DomTouchList: () => (T$10._DomTouchList = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomIteratorResult: () => (T$10.DomIteratorResult = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomIterator: () => (T$10.DomIterator = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    RectAndClipOpTovoid: () => (T$10.RectAndClipOpTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,ui|ClipOp)")))(),
    _SaveElementStackEntry: () => (T$10._SaveElementStackEntry = dart.constFn(dart_rti.findType("_engine|_SaveElementStackEntry")))(),
    ListOf_SaveElementStackEntry: () => (T$10.ListOf_SaveElementStackEntry = dart.constFn(dart_rti.findType("core|List<_engine|_SaveElementStackEntry>")))(),
    ListOfDomElement: () => (T$10.ListOfDomElement = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject>")))(),
    NotoFontTobool: () => (T$10.NotoFontTobool = dart.constFn(dart_rti.findType("core|bool(_engine|NotoFont)")))(),
    FallbackFontComponent: () => (T$10.FallbackFontComponent = dart.constFn(dart_rti.findType("_engine|FallbackFontComponent")))(),
    NotoFont: () => (T$10.NotoFont = dart.constFn(dart_rti.findType("_engine|NotoFont")))(),
    FallbackFontRegistryToFontFallbackManager: () => (T$10.FallbackFontRegistryToFontFallbackManager = dart.constFn(dart_rti.findType("_engine|FontFallbackManager(_engine|FallbackFontRegistry)")))(),
    FallbackFontDownloadQueue: () => (T$10.FallbackFontDownloadQueue = dart.constFn(dart_rti.findType("_engine|FallbackFontDownloadQueue")))(),
    StringAndListOfStringTovoid: () => (T$10.StringAndListOfStringTovoid = dart.constFn(dart_rti.findType("~(core|String,core|List<core|String>)")))(),
    ListOfNotoFontToNotoFont: () => (T$10.ListOfNotoFontToNotoFont = dart.constFn(dart_rti.findType("_engine|NotoFont(core|List<_engine|NotoFont>)")))(),
    ListOfFallbackFontComponent: () => (T$10.ListOfFallbackFontComponent = dart.constFn(dart_rti.findType("core|List<_engine|FallbackFontComponent>")))(),
    _UnicodePropertyLookupOfFallbackFontComponent: () => (T$10._UnicodePropertyLookupOfFallbackFontComponent = dart.constFn(dart_rti.findType("_engine|_UnicodePropertyLookup<_engine|FallbackFontComponent>")))(),
    StringToListOfFallbackFontComponent: () => (T$10.StringToListOfFallbackFontComponent = dart.constFn(dart_rti.findType("core|List<_engine|FallbackFontComponent>(core|String)")))(),
    StringToListOfNotoFont: () => (T$10.StringToListOfNotoFont = dart.constFn(dart_rti.findType("core|List<_engine|NotoFont>(core|String)")))(),
    FallbackFontRegistry: () => (T$10.FallbackFontRegistry = dart.constFn(dart_rti.findType("_engine|FallbackFontRegistry")))(),
    FallbackFontDownloadQueueN: () => (T$10.FallbackFontDownloadQueueN = dart.constFn(dart_rti.findType("_engine|FallbackFontDownloadQueue?")))(),
    ListOfNotoFont: () => (T$10.ListOfNotoFont = dart.constFn(dart_rti.findType("core|List<_engine|NotoFont>")))(),
    ListNOfFallbackFontComponent: () => (T$10.ListNOfFallbackFontComponent = dart.constFn(dart_rti.findType("core|List<_engine|FallbackFontComponent>?")))(),
    _UnicodePropertyLookupNOfFallbackFontComponent: () => (T$10._UnicodePropertyLookupNOfFallbackFontComponent = dart.constFn(dart_rti.findType("_engine|_UnicodePropertyLookup<_engine|FallbackFontComponent>?")))(),
    StringAndListOfPTo_UnicodePropertyLookupOfP: () => (T$10.StringAndListOfPTo_UnicodePropertyLookupOfP = dart.constFn(dart_rti.findType("_engine|_UnicodePropertyLookup<0^>(core|String,core|List<0^>)<core|Object?>")))(),
    NotoFontTovoid: () => (T$10.NotoFontTovoid = dart.constFn(dart_rti.findType("~(_engine|NotoFont)")))(),
    SetOfNotoFont: () => (T$10.SetOfNotoFont = dart.constFn(dart_rti.findType("core|Set<_engine|NotoFont>")))(),
    MapOfString$NotoFont: () => (T$10.MapOfString$NotoFont = dart.constFn(dart_rti.findType("core|Map<core|String,_engine|NotoFont>")))(),
    CompleterNOfvoid: () => (T$10.CompleterNOfvoid = dart.constFn(dart_rti.findType("async|Completer<~>?")))(),
    ListOfFontAsset: () => (T$10.ListOfFontAsset = dart.constFn(dart_rti.findType("core|List<_engine|FontAsset>")))(),
    ListOfFontFamily: () => (T$10.ListOfFontFamily = dart.constFn(dart_rti.findType("core|List<_engine|FontFamily>")))(),
    MapOfString$FontLoadError: () => (T$10.MapOfString$FontLoadError = dart.constFn(dart_rti.findType("core|Map<core|String,_engine|FontLoadError>")))(),
    DomPerformance: () => (T$10.DomPerformance = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    FrameTiming: () => (T$10.FrameTiming = dart.constFn(dart_rti.findType("ui|FrameTiming")))(),
    ListOfFrameTiming: () => (T$10.ListOfFrameTiming = dart.constFn(dart_rti.findType("core|List<ui|FrameTiming>")))(),
    PersistedBackdropFilter: () => (T$10.PersistedBackdropFilter = dart.constFn(dart_rti.findType("_engine|PersistedBackdropFilter")))(),
    EngineImageFilter: () => (T$10.EngineImageFilter = dart.constFn(dart_rti.findType("_engine|EngineImageFilter")))(),
    ModeHtmlColorFilter: () => (T$10.ModeHtmlColorFilter = dart.constFn(dart_rti.findType("_engine|ModeHtmlColorFilter")))(),
    MatrixHtmlColorFilter: () => (T$10.MatrixHtmlColorFilter = dart.constFn(dart_rti.findType("_engine|MatrixHtmlColorFilter")))(),
    PersistedSurface: () => (T$10.PersistedSurface = dart.constFn(dart_rti.findType("_engine|PersistedSurface")))(),
    PersistedContainerSurface: () => (T$10.PersistedContainerSurface = dart.constFn(dart_rti.findType("_engine|PersistedContainerSurface")))(),
    PersistedContainerSurfaceN: () => (T$10.PersistedContainerSurfaceN = dart.constFn(dart_rti.findType("_engine|PersistedContainerSurface?")))(),
    DomHTMLElement: () => (T$10.DomHTMLElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    PersistedSurfaceN: () => (T$10.PersistedSurfaceN = dart.constFn(dart_rti.findType("_engine|PersistedSurface?")))(),
    PersistedSurfaceL: () => (T$10.PersistedSurfaceL = dart.constFn(dart_rti.findType("_engine|PersistedSurface*")))(),
    _PersistedSurfaceMatch: () => (T$10._PersistedSurfaceMatch = dart.constFn(dart_rti.findType("_engine|_PersistedSurfaceMatch")))(),
    _PersistedSurfaceMatchAnd_PersistedSurfaceMatchToint: () => (T$10._PersistedSurfaceMatchAnd_PersistedSurfaceMatchToint = dart.constFn(dart_rti.findType("core|int(_engine|_PersistedSurfaceMatch,_engine|_PersistedSurfaceMatch)")))(),
    PersistedSurfaceState: () => (T$10.PersistedSurfaceState = dart.constFn(dart_rti.findType("_engine|PersistedSurfaceState")))(),
    PersistedSurfaceStateTobool: () => (T$10.PersistedSurfaceStateTobool = dart.constFn(dart_rti.findType("core|bool(_engine|PersistedSurfaceState)")))(),
    PersistedSurfaceTobool: () => (T$10.PersistedSurfaceTobool = dart.constFn(dart_rti.findType("core|bool(_engine|PersistedSurface)")))(),
    StringToDomElement: () => (T$10.StringToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String)")))(),
    PrerollSurfaceContextTovoid: () => (T$10.PrerollSurfaceContextTovoid = dart.constFn(dart_rti.findType("~(_engine|PrerollSurfaceContext)")))(),
    StringBufferAndintTovoid: () => (T$10.StringBufferAndintTovoid = dart.constFn(dart_rti.findType("~(core|StringBuffer,core|int)")))(),
    StringBufferTovoid: () => (T$10.StringBufferTovoid = dart.constFn(dart_rti.findType("~(core|StringBuffer)")))(),
    FrameReferenceOfPersistedSurface: () => (T$10.FrameReferenceOfPersistedSurface = dart.constFn(dart_rti.findType("_engine|FrameReference<_engine|PersistedSurface>")))(),
    FnTovoid$41: () => (T$10.FnTovoid$41 = dart.constFn(dart_rti.findType("~(~(_engine|PersistedSurface))")))(),
    PersistedSurfaceTovoid: () => (T$10.PersistedSurfaceTovoid = dart.constFn(dart_rti.findType("~(_engine|PersistedSurface)")))(),
    PersistedContainerSurfaceTovoid: () => (T$10.PersistedContainerSurfaceTovoid = dart.constFn(dart_rti.findType("~(_engine|PersistedContainerSurface)")))(),
    ListNOfintAndListOfintTovoid: () => (T$10.ListNOfintAndListOfintTovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>?,core|List<core|int>)")))(),
    PersistedContainerSurfaceToMapOfPersistedSurfaceN$PersistedSurface: () => (T$10.PersistedContainerSurfaceToMapOfPersistedSurfaceN$PersistedSurface = dart.constFn(dart_rti.findType("core|Map<_engine|PersistedSurface?,_engine|PersistedSurface>(_engine|PersistedContainerSurface)")))(),
    ListOfPersistedSurface: () => (T$10.ListOfPersistedSurface = dart.constFn(dart_rti.findType("core|List<_engine|PersistedSurface>")))(),
    VoidToDomElement: () => (T$10.VoidToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    DomHTMLImageElementN: () => (T$10.DomHTMLImageElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    HtmlImage: () => (T$10.HtmlImage = dart.constFn(dart_rti.findType("_engine|HtmlImage")))(),
    DomHTMLImageElement: () => (T$10.DomHTMLImageElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    RectToBitmapCanvas: () => (T$10.RectToBitmapCanvas = dart.constFn(dart_rti.findType("_engine|BitmapCanvas(ui|Rect)")))(),
    CrossFrameCacheNOfDomHTMLElementTovoid: () => (T$10.CrossFrameCacheNOfDomHTMLElementTovoid = dart.constFn(dart_rti.findType("~(_engine|CrossFrameCache<_interceptors|JavaScriptObject>?)")))(),
    RectAnddoubleTobool: () => (T$10.RectAnddoubleTobool = dart.constFn(dart_rti.findType("core|bool(ui|Rect,core|double)")))(),
    SurfacePaintDataTobool: () => (T$10.SurfacePaintDataTobool = dart.constFn(dart_rti.findType("core|bool(_engine|SurfacePaintData)")))(),
    OffsetAndOffsetAndSurfacePaintDataTovoid: () => (T$10.OffsetAndOffsetAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,ui|Offset,_engine|SurfacePaintData)")))(),
    SurfacePaintDataTovoid: () => (T$10.SurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(_engine|SurfacePaintData)")))(),
    RectAndSurfacePaintDataTovoid: () => (T$10.RectAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,_engine|SurfacePaintData)")))(),
    DomElementAndOffsetAndSurfacePaintDataTovoid: () => (T$10.DomElementAndOffsetAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,ui|Offset,_engine|SurfacePaintData)")))(),
    RRectAndSurfacePaintDataTovoid: () => (T$10.RRectAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,_engine|SurfacePaintData)")))(),
    RRectAndRRectAndSurfacePaintDataTovoid: () => (T$10.RRectAndRRectAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,ui|RRect,_engine|SurfacePaintData)")))(),
    OffsetAnddoubleAndSurfacePaintDataTovoid: () => (T$10.OffsetAnddoubleAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,core|double,_engine|SurfacePaintData)")))(),
    PathAndSurfacePaintDataTovoid: () => (T$10.PathAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(ui|Path,_engine|SurfacePaintData)")))(),
    DomElementAndSurfacePaintDataTovoid: () => (T$10.DomElementAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,_engine|SurfacePaintData)")))(),
    ImageAndOffsetAndSurfacePaintDataTovoid: () => (T$10.ImageAndOffsetAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(ui|Image,ui|Offset,_engine|SurfacePaintData)")))(),
    HtmlImageToDomHTMLImageElement: () => (T$10.HtmlImageToDomHTMLImageElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_engine|HtmlImage)")))(),
    ImageAndOffsetAndSurfacePaintDataToDomHTMLElement: () => (T$10.ImageAndOffsetAndSurfacePaintDataToDomHTMLElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(ui|Image,ui|Offset,_engine|SurfacePaintData)")))(),
    HtmlImageAndColorAndBlendMode__ToDomHTMLElement: () => (T$10.HtmlImageAndColorAndBlendMode__ToDomHTMLElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_engine|HtmlImage,ui|Color,ui|BlendMode,_engine|SurfacePaintData)")))(),
    ImageAndRectAndRect__Tovoid$1: () => (T$10.ImageAndRectAndRect__Tovoid$1 = dart.constFn(dart_rti.findType("~(ui|Image,ui|Rect,ui|Rect,_engine|SurfacePaintData)")))(),
    DomHTMLElementAnddoubleAnddoubleTovoid: () => (T$10.DomHTMLElementAnddoubleAnddoubleTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|double,core|double)")))(),
    HtmlImageAndColorNAndBlendMode__ToDomHTMLElement: () => (T$10.HtmlImageAndColorNAndBlendMode__ToDomHTMLElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_engine|HtmlImage,ui|Color?,ui|BlendMode,_engine|SurfacePaintData)")))(),
    HtmlImageAndListOfdoubleAndSurfacePaintDataToDomHTMLElement: () => (T$10.HtmlImageAndListOfdoubleAndSurfacePaintDataToDomHTMLElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_engine|HtmlImage,core|List<core|double>,_engine|SurfacePaintData)")))(),
    StringAndTextDirectionTovoid: () => (T$10.StringAndTextDirectionTovoid = dart.constFn(dart_rti.findType("~(core|String,ui|TextDirection)")))(),
    StringToDomTextMetrics: () => (T$10.StringToDomTextMetrics = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String)")))(),
    StringAnddoubleAnddouble__Tovoid: () => (T$10.StringAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(core|String,core|double,core|double{shadows:core|List<ui|Shadow>?,style:ui|PaintingStyle?})")))(),
    CanvasParagraphAndOffsetTovoid: () => (T$10.CanvasParagraphAndOffsetTovoid = dart.constFn(dart_rti.findType("~(_engine|CanvasParagraph,ui|Offset)")))(),
    SurfaceVerticesAndBlendModeAndSurfacePaintDataTovoid: () => (T$10.SurfaceVerticesAndBlendModeAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(_engine|SurfaceVertices,ui|BlendMode,_engine|SurfacePaintData)")))(),
    PointModeAndFloat32ListAndSurfacePaintDataTovoid: () => (T$10.PointModeAndFloat32ListAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(ui|PointMode,typed_data|Float32List,_engine|SurfacePaintData)")))(),
    Matrix4ToRect: () => (T$10.Matrix4ToRect = dart.constFn(dart_rti.findType("ui|Rect(_engine|Matrix4)")))(),
    CrossFrameCacheNOfDomHTMLElement: () => (T$10.CrossFrameCacheNOfDomHTMLElement = dart.constFn(dart_rti.findType("_engine|CrossFrameCache<_interceptors|JavaScriptObject>?")))(),
    RenderStrategy: () => (T$10.RenderStrategy = dart.constFn(dart_rti.findType("_engine|RenderStrategy")))(),
    SurfacePaintData: () => (T$10.SurfacePaintData = dart.constFn(dart_rti.findType("_engine|SurfacePaintData")))(),
    SurfacePaint: () => (T$10.SurfacePaint = dart.constFn(dart_rti.findType("_engine|SurfacePaint")))(),
    SurfaceVertices: () => (T$10.SurfaceVertices = dart.constFn(dart_rti.findType("_engine|SurfaceVertices")))(),
    EnginePictureRecorderAndRectNToSurfaceCanvas: () => (T$10.EnginePictureRecorderAndRectNToSurfaceCanvas = dart.constFn(dart_rti.findType("_engine|SurfaceCanvas(_engine|EnginePictureRecorder[ui|Rect?])")))(),
    PathAndboolTovoid: () => (T$10.PathAndboolTovoid = dart.constFn(dart_rti.findType("~(ui|Path,core|bool)")))(),
    doubleAnddoubleAnddouble__ToListOfdouble: () => (T$10.doubleAnddoubleAnddouble__ToListOfdouble = dart.constFn(dart_rti.findType("core|List<core|double>(core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    RecordingCanvas: () => (T$10.RecordingCanvas = dart.constFn(dart_rti.findType("_engine|RecordingCanvas")))(),
    _DomClip: () => (T$10._DomClip = dart.constFn(dart_rti.findType("_engine|_DomClip")))(),
    DomElementAndClipNTovoid: () => (T$10.DomElementAndClipNTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,ui|Clip?)")))(),
    PersistedClipRect: () => (T$10.PersistedClipRect = dart.constFn(dart_rti.findType("_engine|PersistedClipRect")))(),
    PersistedClipRRect: () => (T$10.PersistedClipRRect = dart.constFn(dart_rti.findType("_engine|PersistedClipRRect")))(),
    PersistedClipPath: () => (T$10.PersistedClipPath = dart.constFn(dart_rti.findType("_engine|PersistedClipPath")))(),
    Path: () => (T$10.Path = dart.constFn(dart_rti.findType("ui|Path")))(),
    PersistedColorFilter: () => (T$10.PersistedColorFilter = dart.constFn(dart_rti.findType("_engine|PersistedColorFilter")))(),
    ModeHtmlColorFilterTovoid: () => (T$10.ModeHtmlColorFilterTovoid = dart.constFn(dart_rti.findType("~(_engine|ModeHtmlColorFilter)")))(),
    MatrixHtmlColorFilterTovoid: () => (T$10.MatrixHtmlColorFilterTovoid = dart.constFn(dart_rti.findType("~(_engine|MatrixHtmlColorFilter)")))(),
    SVGSVGElement: () => (T$10.SVGSVGElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGAnimatedEnumerationN: () => (T$10.SVGAnimatedEnumerationN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SVGLengthN: () => (T$10.SVGLengthN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SVGAnimatedLengthN: () => (T$10.SVGAnimatedLengthN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SVGAnimatedStringN: () => (T$10.SVGAnimatedStringN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SVGNumberListN: () => (T$10.SVGNumberListN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SVGAnimatedNumberListN: () => (T$10.SVGAnimatedNumberListN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SVGNumber: () => (T$10.SVGNumber = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGAnimatedNumberN: () => (T$10.SVGAnimatedNumberN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    ListOfdouble__Tovoid: () => (T$10.ListOfdouble__Tovoid = dart.constFn(dart_rti.findType("~(core|List<core|double>{result!core|String})")))(),
    __Tovoid$11: () => (T$10.__Tovoid$11 = dart.constFn(dart_rti.findType("~({floodColor!core|String,floodOpacity!core|String,result!core|String})")))(),
    __Tovoid$12: () => (T$10.__Tovoid$12 = dart.constFn(dart_rti.findType("~({in1!core|String,in2!core|String,mode!core|int})")))(),
    __Tovoid$13: () => (T$10.__Tovoid$13 = dart.constFn(dart_rti.findType("~({in1!core|String,in2!core|String,k1:core|num?,k2:core|num?,k3:core|num?,k4:core|num?,operator!core|int,result!core|String})")))(),
    __Tovoid$14: () => (T$10.__Tovoid$14 = dart.constFn(dart_rti.findType("~({height!core|double,href!core|String,result!core|String,width!core|double})")))(),
    VoidToSvgFilter: () => (T$10.VoidToSvgFilter = dart.constFn(dart_rti.findType("_engine|SvgFilter()")))(),
    SVGFilterElement: () => (T$10.SVGFilterElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DebugCanvasReuseOverlay: () => (T$10.DebugCanvasReuseOverlay = dart.constFn(dart_rti.findType("_engine|DebugCanvasReuseOverlay")))(),
    DebugCanvasReuseOverlayN: () => (T$10.DebugCanvasReuseOverlayN = dart.constFn(dart_rti.findType("_engine|DebugCanvasReuseOverlay?")))(),
    DomText: () => (T$10.DomText = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    CanvasParagraph: () => (T$10.CanvasParagraph = dart.constFn(dart_rti.findType("_engine|CanvasParagraph")))(),
    VerticesAndBlendModeAndSurfacePaintDataTovoid: () => (T$10.VerticesAndBlendModeAndSurfacePaintDataTovoid = dart.constFn(dart_rti.findType("~(ui|Vertices,ui|BlendMode,_engine|SurfacePaintData)")))(),
    CompleterOfFrameInfoTovoid: () => (T$10.CompleterOfFrameInfoTovoid = dart.constFn(dart_rti.findType("~(async|Completer<ui|FrameInfo>)")))(),
    intAndintToNvoid: () => (T$10.intAndintToNvoid = dart.constFn(dart_rti.findType("~(core|int,core|int)?")))(),
    DomHTMLImageElementAndintAndintToImage: () => (T$10.DomHTMLImageElementAndintAndintToImage = dart.constFn(dart_rti.findType("ui|Image(_interceptors|JavaScriptObject,core|int,core|int)")))(),
    DomURL: () => (T$10.DomURL = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomBlob: () => (T$10.DomBlob = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    __ToFutureOfByteDataN: () => (T$10.__ToFutureOfByteDataN = dart.constFn(dart_rti.findType("async|Future<typed_data|ByteData?>({format:ui|ImageByteFormat})")))(),
    VoidToDomHTMLImageElement: () => (T$10.VoidToDomHTMLImageElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    PersistedImageFilter: () => (T$10.PersistedImageFilter = dart.constFn(dart_rti.findType("_engine|PersistedImageFilter")))(),
    PersistedOffset: () => (T$10.PersistedOffset = dart.constFn(dart_rti.findType("_engine|PersistedOffset")))(),
    PersistedOpacity: () => (T$10.PersistedOpacity = dart.constFn(dart_rti.findType("_engine|PersistedOpacity")))(),
    VoidToSurfacePaintData: () => (T$10.VoidToSurfacePaintData = dart.constFn(dart_rti.findType("_engine|SurfacePaintData()")))(),
    PaintingStyleN: () => (T$10.PaintingStyleN = dart.constFn(dart_rti.findType("ui|PaintingStyle?")))(),
    VoidToListOfOffset: () => (T$10.VoidToListOfOffset = dart.constFn(dart_rti.findType("core|List<ui|Offset>()")))(),
    ConicAndintAndListOfOffsetTovoid: () => (T$10.ConicAndintAndListOfOffsetTovoid = dart.constFn(dart_rti.findType("~(_engine|Conic,core|int,core|List<ui|Offset>)")))(),
    _ConicPairTovoid: () => (T$10._ConicPairTovoid = dart.constFn(dart_rti.findType("~(_engine|_ConicPair)")))(),
    ListOfConicTovoid: () => (T$10.ListOfConicTovoid = dart.constFn(dart_rti.findType("~(core|List<_engine|Conic>)")))(),
    VoidTodoubleN: () => (T$10.VoidTodoubleN = dart.constFn(dart_rti.findType("core|double?()")))(),
    doubleAndListOfConic__Tobool: () => (T$10.doubleAndListOfConic__Tobool = dart.constFn(dart_rti.findType("core|bool(core|double,core|List<_engine|Conic>{cleanupMiddle:core|bool})")))(),
    doubleAnddoubleAnddouble__Todouble$1: () => (T$10.doubleAnddoubleAnddouble__Todouble$1 = dart.constFn(dart_rti.findType("core|double(core|double,core|double,core|double,core|double,core|double)")))(),
    doubleAnddoubleTodouble: () => (T$10.doubleAnddoubleTodouble = dart.constFn(dart_rti.findType("core|double(core|double,core|double)")))()
  };
  var T$11 = {
    Float32ListAndintTovoid: () => (T$11.Float32ListAndintTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,core|int)")))(),
    Float32ListAnddoubleAndintTovoid: () => (T$11.Float32ListAnddoubleAndintTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,core|double,core|int)")))(),
    ConicN: () => (T$11.ConicN = dart.constFn(dart_rti.findType("_engine|Conic?")))(),
    OffsetL: () => (T$11.OffsetL = dart.constFn(dart_rti.findType("ui|Offset*")))(),
    Conic: () => (T$11.Conic = dart.constFn(dart_rti.findType("_engine|Conic")))(),
    SurfacePathTovoid: () => (T$11.SurfacePathTovoid = dart.constFn(dart_rti.findType("~(_engine|SurfacePath)")))(),
    SurfacePathTobool: () => (T$11.SurfacePathTobool = dart.constFn(dart_rti.findType("core|bool(_engine|SurfacePath)")))(),
    SurfacePathAnddoubleAndSurfacePathTobool: () => (T$11.SurfacePathAnddoubleAndSurfacePathTobool = dart.constFn(dart_rti.findType("core|bool(_engine|SurfacePath,core|double,_engine|SurfacePath)")))(),
    Float32ListTobool: () => (T$11.Float32ListTobool = dart.constFn(dart_rti.findType("core|bool(typed_data|Float32List)")))(),
    RectAndintAndintTovoid: () => (T$11.RectAndintAndintTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,core|int,core|int)")))(),
    RRectAndintAndintTovoid: () => (T$11.RRectAndintAndintTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,core|int,core|int)")))(),
    PathAnddoubleAnddouble__Tovoid: () => (T$11.PathAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(ui|Path,core|double,core|double,typed_data|Float32List?,core|int)")))(),
    OffsetToSurfacePath: () => (T$11.OffsetToSurfacePath = dart.constFn(dart_rti.findType("_engine|SurfacePath(ui|Offset)")))(),
    Float64ListToSurfacePath: () => (T$11.Float64ListToSurfacePath = dart.constFn(dart_rti.findType("_engine|SurfacePath(typed_data|Float64List)")))(),
    __ToSurfacePathMetrics: () => (T$11.__ToSurfacePathMetrics = dart.constFn(dart_rti.findType("_engine|SurfacePathMetrics({forceClosed:core|bool})")))(),
    VoidToRRectN: () => (T$11.VoidToRRectN = dart.constFn(dart_rti.findType("ui|RRect?()")))(),
    VoidToRectN: () => (T$11.VoidToRectN = dart.constFn(dart_rti.findType("ui|Rect?()")))(),
    PathRef: () => (T$11.PathRef = dart.constFn(dart_rti.findType("_engine|PathRef")))(),
    Float32ListToint: () => (T$11.Float32ListToint = dart.constFn(dart_rti.findType("core|int(typed_data|Float32List)")))(),
    SurfacePathMetrics: () => (T$11.SurfacePathMetrics = dart.constFn(dart_rti.findType("_engine|SurfacePathMetrics")))(),
    SurfacePathMetricIterator: () => (T$11.SurfacePathMetricIterator = dart.constFn(dart_rti.findType("_engine|SurfacePathMetricIterator")))(),
    _PathContourMeasure: () => (T$11._PathContourMeasure = dart.constFn(dart_rti.findType("_engine|_PathContourMeasure")))(),
    intAnddoubleToTangentN: () => (T$11.intAnddoubleToTangentN = dart.constFn(dart_rti.findType("ui|Tangent?(core|int,core|double)")))(),
    intAnddoubleAnddouble__ToPath: () => (T$11.intAnddoubleAnddouble__ToPath = dart.constFn(dart_rti.findType("ui|Path(core|int,core|double,core|double{startWithMoveTo:core|bool})")))(),
    PathIterator: () => (T$11.PathIterator = dart.constFn(dart_rti.findType("_engine|PathIterator")))(),
    ListOf_PathContourMeasure: () => (T$11.ListOf_PathContourMeasure = dart.constFn(dart_rti.findType("core|List<_engine|_PathContourMeasure>")))(),
    _PathSegment: () => (T$11._PathSegment = dart.constFn(dart_rti.findType("_engine|_PathSegment")))(),
    doubleToTangentN: () => (T$11.doubleToTangentN = dart.constFn(dart_rti.findType("ui|Tangent?(core|double)")))(),
    intAnddoubleTo_SurfaceTangent: () => (T$11.intAnddoubleTo_SurfaceTangent = dart.constFn(dart_rti.findType("_engine|_SurfaceTangent(core|int,core|double)")))(),
    doubleAnddoubleAndboolToPath: () => (T$11.doubleAnddoubleAndboolToPath = dart.constFn(dart_rti.findType("ui|Path(core|double,core|double,core|bool)")))(),
    _PathSegmentAnddoubleAnddouble__Tovoid: () => (T$11._PathSegmentAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(_engine|_PathSegment,core|double,core|double,ui|Path)")))(),
    PathIteratorToint: () => (T$11.PathIteratorToint = dart.constFn(dart_rti.findType("core|int(_engine|PathIterator)")))(),
    doubleAnddoubleAnddouble__Tobool: () => (T$11.doubleAnddoubleAnddouble__Tobool = dart.constFn(dart_rti.findType("core|bool(core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    doubleAnddoubleAnddouble__Todouble$2: () => (T$11.doubleAnddoubleAnddouble__Todouble$2 = dart.constFn(dart_rti.findType("core|double(core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|int,core|int,core|List<_engine|_PathSegment>)")))(),
    doubleAnddoubleAnddouble__Tobool$1: () => (T$11.doubleAnddoubleAnddouble__Tobool$1 = dart.constFn(dart_rti.findType("core|bool(core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    doubleAnddoubleAnddouble__Todouble$3: () => (T$11.doubleAnddoubleAnddouble__Todouble$3 = dart.constFn(dart_rti.findType("core|double(core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|int,core|int)")))(),
    ListOf_PathSegment: () => (T$11.ListOf_PathSegment = dart.constFn(dart_rti.findType("core|List<_engine|_PathSegment>")))(),
    SurfacePathMetric: () => (T$11.SurfacePathMetric = dart.constFn(dart_rti.findType("_engine|SurfacePathMetric")))(),
    SurfacePathMetricN: () => (T$11.SurfacePathMetricN = dart.constFn(dart_rti.findType("_engine|SurfacePathMetric?")))(),
    _SurfacePathMeasure: () => (T$11._SurfacePathMeasure = dart.constFn(dart_rti.findType("_engine|_SurfacePathMeasure")))(),
    doubleTo_SurfaceTangent: () => (T$11.doubleTo_SurfaceTangent = dart.constFn(dart_rti.findType("_engine|_SurfaceTangent(core|double)")))(),
    doubleAnddoubleAnddouble__To_SurfaceTangent: () => (T$11.doubleAnddoubleAnddouble__To_SurfaceTangent = dart.constFn(dart_rti.findType("_engine|_SurfaceTangent(core|double,core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    doubleAnddoubleAnddouble__To_SurfaceTangent$1: () => (T$11.doubleAnddoubleAnddouble__To_SurfaceTangent$1 = dart.constFn(dart_rti.findType("_engine|_SurfaceTangent(core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    intAnddoubleAnddoubleTovoid: () => (T$11.intAnddoubleAnddoubleTovoid = dart.constFn(dart_rti.findType("~(core|int,core|double,core|double)")))(),
    intToOffset: () => (T$11.intToOffset = dart.constFn(dart_rti.findType("ui|Offset(core|int)")))(),
    PathRefTobool: () => (T$11.PathRefTobool = dart.constFn(dart_rti.findType("core|bool(_engine|PathRef)")))(),
    PathRefAnddoubleAnddoubleToFloat32List: () => (T$11.PathRefAnddoubleAnddoubleToFloat32List = dart.constFn(dart_rti.findType("typed_data|Float32List(_engine|PathRef,core|double,core|double)")))(),
    PathRefToUint8List: () => (T$11.PathRefToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(_engine|PathRef)")))(),
    PathRefAndintAndintTovoid: () => (T$11.PathRefAndintAndintTovoid = dart.constFn(dart_rti.findType("~(_engine|PathRef,core|int,core|int)")))(),
    PathRefTovoid: () => (T$11.PathRefTovoid = dart.constFn(dart_rti.findType("~(_engine|PathRef)")))(),
    PathRefAnddoubleAndPathRefTovoid: () => (T$11.PathRefAnddoubleAndPathRefTovoid = dart.constFn(dart_rti.findType("~(_engine|PathRef,core|double,_engine|PathRef)")))(),
    intAndintAndint__Tovoid$28: () => (T$11.intAndintAndint__Tovoid$28 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int[core|int,core|int])")))(),
    intAnddoubleToint: () => (T$11.intAnddoubleToint = dart.constFn(dart_rti.findType("core|int(core|int,core|double)")))(),
    boolAndboolAndintTovoid: () => (T$11.boolAndboolAndintTovoid = dart.constFn(dart_rti.findType("~(core|bool,core|bool,core|int)")))(),
    boolAndboolAndint__Tovoid: () => (T$11.boolAndboolAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|bool,core|bool,core|int,ui|RRect)")))(),
    doubleAnddoubleAnddoubleTobool: () => (T$11.doubleAnddoubleAnddoubleTobool = dart.constFn(dart_rti.findType("core|bool(core|double,core|double,core|double)")))(),
    doubleAnddoubleTobool: () => (T$11.doubleAnddoubleTobool = dart.constFn(dart_rti.findType("core|bool(core|double,core|double)")))(),
    doubleTobool: () => (T$11.doubleTobool = dart.constFn(dart_rti.findType("core|bool(core|double)")))(),
    doubleAnddoubleAnddoubleToint: () => (T$11.doubleAnddoubleAnddoubleToint = dart.constFn(dart_rti.findType("core|int(core|double,core|double,core|double)")))(),
    doubleAnddoubleToDirChange: () => (T$11.doubleAnddoubleToDirChange = dart.constFn(dart_rti.findType("_engine|DirChange(core|double,core|double)")))(),
    PathRefAndintAndintToint: () => (T$11.PathRefAndintAndintToint = dart.constFn(dart_rti.findType("core|int(_engine|PathRef,core|int,core|int)")))(),
    DirChange: () => (T$11.DirChange = dart.constFn(dart_rti.findType("_engine|DirChange")))(),
    ListOfDirChange: () => (T$11.ListOfDirChange = dart.constFn(dart_rti.findType("core|List<_engine|DirChange>")))(),
    DirChangeL: () => (T$11.DirChangeL = dart.constFn(dart_rti.findType("_engine|DirChange*")))(),
    doubleAnddoubleAnddouble__Toint: () => (T$11.doubleAnddoubleAnddouble__Toint = dart.constFn(dart_rti.findType("core|int(core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    ConicTovoid: () => (T$11.ConicTovoid = dart.constFn(dart_rti.findType("~(_engine|Conic)")))(),
    RectToRecordingCanvas: () => (T$11.RectToRecordingCanvas = dart.constFn(dart_rti.findType("_engine|RecordingCanvas(ui|Rect)")))(),
    VoidToEnginePicture: () => (T$11.VoidToEnginePicture = dart.constFn(dart_rti.findType("_engine|EnginePicture()")))(),
    RecordingCanvasN: () => (T$11.RecordingCanvasN = dart.constFn(dart_rti.findType("_engine|RecordingCanvas?")))(),
    BitmapCanvas: () => (T$11.BitmapCanvas = dart.constFn(dart_rti.findType("_engine|BitmapCanvas")))(),
    PersistedPicture: () => (T$11.PersistedPicture = dart.constFn(dart_rti.findType("_engine|PersistedPicture")))(),
    BitmapCanvasN: () => (T$11.BitmapCanvasN = dart.constFn(dart_rti.findType("_engine|BitmapCanvas?")))(),
    EngineCanvasN: () => (T$11.EngineCanvasN = dart.constFn(dart_rti.findType("_engine|EngineCanvas?")))(),
    PersistedPictureNTovoid: () => (T$11.PersistedPictureNTovoid = dart.constFn(dart_rti.findType("~(_engine|PersistedPicture?)")))(),
    EngineCanvasNTovoid: () => (T$11.EngineCanvasNTovoid = dart.constFn(dart_rti.findType("~(_engine|EngineCanvas?)")))(),
    EnginePicture: () => (T$11.EnginePicture = dart.constFn(dart_rti.findType("_engine|EnginePicture")))(),
    PersistedPlatformView: () => (T$11.PersistedPlatformView = dart.constFn(dart_rti.findType("_engine|PersistedPlatformView")))(),
    PaintCommand: () => (T$11.PaintCommand = dart.constFn(dart_rti.findType("_engine|PaintCommand")))(),
    DrawCommand: () => (T$11.DrawCommand = dart.constFn(dart_rti.findType("_engine|DrawCommand")))(),
    PaintSave: () => (T$11.PaintSave = dart.constFn(dart_rti.findType("_engine|PaintSave")))(),
    ListOfPaintCommand: () => (T$11.ListOfPaintCommand = dart.constFn(dart_rti.findType("core|List<_engine|PaintCommand>")))(),
    EngineCanvasAndRectTovoid: () => (T$11.EngineCanvasAndRectTovoid = dart.constFn(dart_rti.findType("~(_engine|EngineCanvas,ui|Rect)")))(),
    SurfacePaintTovoid: () => (T$11.SurfacePaintTovoid = dart.constFn(dart_rti.findType("~(_engine|SurfacePaint)")))(),
    RectAndSurfacePaintTovoid: () => (T$11.RectAndSurfacePaintTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,_engine|SurfacePaint)")))(),
    OffsetAndOffsetAndSurfacePaintTovoid: () => (T$11.OffsetAndOffsetAndSurfacePaintTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,ui|Offset,_engine|SurfacePaint)")))(),
    RRectAndSurfacePaintTovoid: () => (T$11.RRectAndSurfacePaintTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,_engine|SurfacePaint)")))(),
    RRectAndRRectAndSurfacePaintTovoid: () => (T$11.RRectAndRRectAndSurfacePaintTovoid = dart.constFn(dart_rti.findType("~(ui|RRect,ui|RRect,_engine|SurfacePaint)")))(),
    OffsetAnddoubleAndSurfacePaintTovoid: () => (T$11.OffsetAnddoubleAndSurfacePaintTovoid = dart.constFn(dart_rti.findType("~(ui|Offset,core|double,_engine|SurfacePaint)")))(),
    PathAndSurfacePaintTovoid: () => (T$11.PathAndSurfacePaintTovoid = dart.constFn(dart_rti.findType("~(ui|Path,_engine|SurfacePaint)")))(),
    ImageAndOffsetAndSurfacePaintTovoid: () => (T$11.ImageAndOffsetAndSurfacePaintTovoid = dart.constFn(dart_rti.findType("~(ui|Image,ui|Offset,_engine|SurfacePaint)")))(),
    ImageAndRectAndRect__Tovoid$2: () => (T$11.ImageAndRectAndRect__Tovoid$2 = dart.constFn(dart_rti.findType("~(ui|Image,ui|Rect,ui|Rect,_engine|SurfacePaint)")))(),
    SurfaceVerticesAndBlendModeAndSurfacePaintTovoid: () => (T$11.SurfaceVerticesAndBlendModeAndSurfacePaintTovoid = dart.constFn(dart_rti.findType("~(_engine|SurfaceVertices,ui|BlendMode,_engine|SurfacePaint)")))(),
    PointModeAndFloat32ListAndSurfacePaintTovoid: () => (T$11.PointModeAndFloat32ListAndSurfacePaintTovoid = dart.constFn(dart_rti.findType("~(ui|PointMode,typed_data|Float32List,_engine|SurfacePaint)")))(),
    Float32ListAnddoubleAndSurfacePaint__Tovoid: () => (T$11.Float32ListAnddoubleAndSurfacePaint__Tovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,core|double,_engine|SurfacePaint,_engine|DrawCommand)")))(),
    _PaintBounds: () => (T$11._PaintBounds = dart.constFn(dart_rti.findType("_engine|_PaintBounds")))(),
    EngineCanvasTovoid: () => (T$11.EngineCanvasTovoid = dart.constFn(dart_rti.findType("~(_engine|EngineCanvas)")))(),
    Vertices: () => (T$11.Vertices = dart.constFn(dart_rti.findType("ui|Vertices")))(),
    PathCommand: () => (T$11.PathCommand = dart.constFn(dart_rti.findType("_engine|PathCommand")))(),
    OffsetToSubpath: () => (T$11.OffsetToSubpath = dart.constFn(dart_rti.findType("_engine|Subpath(ui|Offset)")))(),
    ListOfPathCommand: () => (T$11.ListOfPathCommand = dart.constFn(dart_rti.findType("core|List<_engine|PathCommand>")))(),
    doubleAnddoubleAndFloat32ListToOffset: () => (T$11.doubleAnddoubleAndFloat32ListToOffset = dart.constFn(dart_rti.findType("ui|Offset(core|double,core|double,typed_data|Float32List)")))(),
    OffsetToMoveTo: () => (T$11.OffsetToMoveTo = dart.constFn(dart_rti.findType("_engine|MoveTo(ui|Offset)")))(),
    Float32ListAndPathTovoid: () => (T$11.Float32ListAndPathTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,ui|Path)")))(),
    OffsetToLineTo: () => (T$11.OffsetToLineTo = dart.constFn(dart_rti.findType("_engine|LineTo(ui|Offset)")))(),
    OffsetToEllipse: () => (T$11.OffsetToEllipse = dart.constFn(dart_rti.findType("_engine|Ellipse(ui|Offset)")))(),
    Float32ListAndSurfacePathTovoid: () => (T$11.Float32ListAndSurfacePathTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,_engine|SurfacePath)")))(),
    doubleAnddoubleAnddouble__Tovoid$4: () => (T$11.doubleAnddoubleAnddouble__Tovoid$4 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|double,core|double,core|double,typed_data|Float32List,ui|Path)")))(),
    PathAnddoubleAnddouble__Tovoid$1: () => (T$11.PathAnddoubleAnddouble__Tovoid$1 = dart.constFn(dart_rti.findType("~(ui|Path,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|bool,typed_data|Float32List)")))(),
    OffsetToQuadraticCurveTo: () => (T$11.OffsetToQuadraticCurveTo = dart.constFn(dart_rti.findType("_engine|QuadraticCurveTo(ui|Offset)")))(),
    OffsetToBezierCurveTo: () => (T$11.OffsetToBezierCurveTo = dart.constFn(dart_rti.findType("_engine|BezierCurveTo(ui|Offset)")))(),
    OffsetToRectCommand: () => (T$11.OffsetToRectCommand = dart.constFn(dart_rti.findType("_engine|RectCommand(ui|Offset)")))(),
    OffsetToRRectCommand: () => (T$11.OffsetToRRectCommand = dart.constFn(dart_rti.findType("_engine|RRectCommand(ui|Offset)")))(),
    OffsetToCloseCommand: () => (T$11.OffsetToCloseCommand = dart.constFn(dart_rti.findType("_engine|CloseCommand(ui|Offset)")))(),
    RectAndDrawCommandTovoid: () => (T$11.RectAndDrawCommandTovoid = dart.constFn(dart_rti.findType("~(ui|Rect,_engine|DrawCommand)")))(),
    doubleAnddoubleAnddouble__Tovoid$5: () => (T$11.doubleAnddoubleAnddouble__Tovoid$5 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,_engine|DrawCommand)")))(),
    ListOfMatrix4: () => (T$11.ListOfMatrix4 = dart.constFn(dart_rti.findType("core|List<_engine|Matrix4>")))(),
    ListOfRectN: () => (T$11.ListOfRectN = dart.constFn(dart_rti.findType("core|List<ui|Rect?>")))(),
    RenderStrategyTovoid: () => (T$11.RenderStrategyTovoid = dart.constFn(dart_rti.findType("~(_engine|RenderStrategy)")))(),
    ListOfColorToInt32List: () => (T$11.ListOfColorToInt32List = dart.constFn(dart_rti.findType("typed_data|Int32List(core|List<ui|Color>)")))(),
    Int32ListN: () => (T$11.Int32ListN = dart.constFn(dart_rti.findType("typed_data|Int32List?")))(),
    DomCanvasRenderingContext2DNAndintAndint__Tovoid: () => (T$11.DomCanvasRenderingContext2DNAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject?,core|int,core|int,_engine|Matrix4,_engine|SurfaceVertices,ui|BlendMode,_engine|SurfacePaintData)")))(),
    RectAndGlContextAndGlProgram__ToObjectN: () => (T$11.RectAndGlContextAndGlProgram__ToObjectN = dart.constFn(dart_rti.findType("core|Object?(ui|Rect,_engine|GlContext,_engine|GlProgram,_engine|NormalizedGradient,core|int,core|int)")))(),
    RectAndGlContextAndGlProgram__ToString: () => (T$11.RectAndGlContextAndGlProgram__ToString = dart.constFn(dart_rti.findType("core|String(ui|Rect,_engine|GlContext,_engine|GlProgram,_engine|NormalizedGradient,core|int,core|int)")))(),
    RectAndGlContextAndGlProgram__Tovoid: () => (T$11.RectAndGlContextAndGlProgram__Tovoid = dart.constFn(dart_rti.findType("~(ui|Rect,_engine|GlContext,_engine|GlProgram,_engine|NormalizedGradient,core|int,core|int)")))(),
    DomCanvasRenderingContext2DNAndFloat32ListTovoid: () => (T$11.DomCanvasRenderingContext2DNAndFloat32ListTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject?,typed_data|Float32List)")))(),
    EnginePictureRecorder: () => (T$11.EnginePictureRecorder = dart.constFn(dart_rti.findType("_engine|EnginePictureRecorder")))(),
    FrameInfoToNull: () => (T$11.FrameInfoToNull = dart.constFn(dart_rti.findType("core|Null(ui|FrameInfo)")))(),
    CodecTovoid: () => (T$11.CodecTovoid = dart.constFn(dart_rti.findType("~(ui|Codec)")))(),
    EngineParagraphStyle: () => (T$11.EngineParagraphStyle = dart.constFn(dart_rti.findType("_engine|EngineParagraphStyle")))(),
    SurfaceScene: () => (T$11.SurfaceScene = dart.constFn(dart_rti.findType("_engine|SurfaceScene")))(),
    HtmlFragmentProgram: () => (T$11.HtmlFragmentProgram = dart.constFn(dart_rti.findType("_engine|HtmlFragmentProgram")))(),
    HtmlRenderer: () => (T$11.HtmlRenderer = dart.constFn(dart_rti.findType("_engine|HtmlRenderer")))(),
    HtmlFontCollection: () => (T$11.HtmlFontCollection = dart.constFn(dart_rti.findType("_engine|HtmlFontCollection")))(),
    DomImageBitmapToFutureOfImage: () => (T$11.DomImageBitmapToFutureOfImage = dart.constFn(dart_rti.findType("async|Future<ui|Image>(_interceptors|JavaScriptObject)")))(),
    HtmlRendererN: () => (T$11.HtmlRendererN = dart.constFn(dart_rti.findType("_engine|HtmlRenderer?")))(),
    HtmlFontCollectionN: () => (T$11.HtmlFontCollectionN = dart.constFn(dart_rti.findType("_engine|HtmlFontCollection?")))(),
    ResourceManager: () => (T$11.ResourceManager = dart.constFn(dart_rti.findType("_engine|ResourceManager")))(),
    DomElementNTovoid: () => (T$11.DomElementNTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject?)")))(),
    DomManager: () => (T$11.DomManager = dart.constFn(dart_rti.findType("_engine|DomManager")))(),
    ResourceManagerN: () => (T$11.ResourceManagerN = dart.constFn(dart_rti.findType("_engine|ResourceManager?")))(),
    FrameTimingRecorderN: () => (T$11.FrameTimingRecorderN = dart.constFn(dart_rti.findType("_engine|FrameTimingRecorder?")))(),
    PersistedScene: () => (T$11.PersistedScene = dart.constFn(dart_rti.findType("_engine|PersistedScene")))(),
    PersistedOffsetN: () => (T$11.PersistedOffsetN = dart.constFn(dart_rti.findType("_engine|PersistedOffset?")))(),
    PersistedTransform: () => (T$11.PersistedTransform = dart.constFn(dart_rti.findType("_engine|PersistedTransform")))(),
    PersistedTransformN: () => (T$11.PersistedTransformN = dart.constFn(dart_rti.findType("_engine|PersistedTransform?")))(),
    PersistedClipRectN: () => (T$11.PersistedClipRectN = dart.constFn(dart_rti.findType("_engine|PersistedClipRect?")))(),
    PersistedClipPathN: () => (T$11.PersistedClipPathN = dart.constFn(dart_rti.findType("_engine|PersistedClipPath?")))(),
    PersistedOpacityN: () => (T$11.PersistedOpacityN = dart.constFn(dart_rti.findType("_engine|PersistedOpacity?")))(),
    PersistedColorFilterN: () => (T$11.PersistedColorFilterN = dart.constFn(dart_rti.findType("_engine|PersistedColorFilter?")))(),
    PersistedImageFilterN: () => (T$11.PersistedImageFilterN = dart.constFn(dart_rti.findType("_engine|PersistedImageFilter?")))(),
    PersistedBackdropFilterN: () => (T$11.PersistedBackdropFilterN = dart.constFn(dart_rti.findType("_engine|PersistedBackdropFilter?")))(),
    PersistedShaderMask: () => (T$11.PersistedShaderMask = dart.constFn(dart_rti.findType("_engine|PersistedShaderMask")))(),
    PersistedShaderMaskN: () => (T$11.PersistedShaderMaskN = dart.constFn(dart_rti.findType("_engine|PersistedShaderMask?")))(),
    VoidToSurfaceScene: () => (T$11.VoidToSurfaceScene = dart.constFn(dart_rti.findType("_engine|SurfaceScene()")))(),
    TToT$3: () => (T$11.TToT$3 = dart.constFn(dart_rti.findType("0^(0^)<_engine|PersistedContainerSurface>")))(),
    doubleAnddouble__ToOffsetEngineLayer$1: () => (T$11.doubleAnddouble__ToOffsetEngineLayer$1 = dart.constFn(dart_rti.findType("ui|OffsetEngineLayer(core|double,core|double{oldLayer:ui|OffsetEngineLayer?})")))(),
    Float64List__ToTransformEngineLayer$1: () => (T$11.Float64List__ToTransformEngineLayer$1 = dart.constFn(dart_rti.findType("ui|TransformEngineLayer(typed_data|Float64List{oldLayer:ui|TransformEngineLayer?})")))(),
    Rect__ToClipRectEngineLayer$1: () => (T$11.Rect__ToClipRectEngineLayer$1 = dart.constFn(dart_rti.findType("ui|ClipRectEngineLayer(ui|Rect{clipBehavior:ui|Clip,oldLayer:ui|ClipRectEngineLayer?})")))(),
    RRect__ToClipRRectEngineLayer$1: () => (T$11.RRect__ToClipRRectEngineLayer$1 = dart.constFn(dart_rti.findType("ui|ClipRRectEngineLayer(ui|RRect{clipBehavior:ui|Clip?,oldLayer:ui|ClipRRectEngineLayer?})")))(),
    Path__ToClipPathEngineLayer$1: () => (T$11.Path__ToClipPathEngineLayer$1 = dart.constFn(dart_rti.findType("ui|ClipPathEngineLayer(ui|Path{clipBehavior:ui|Clip,oldLayer:ui|ClipPathEngineLayer?})")))(),
    int__ToOpacityEngineLayer$1: () => (T$11.int__ToOpacityEngineLayer$1 = dart.constFn(dart_rti.findType("ui|OpacityEngineLayer(core|int{offset:ui|Offset,oldLayer:ui|OpacityEngineLayer?})")))(),
    ColorFilter__ToColorFilterEngineLayer$1: () => (T$11.ColorFilter__ToColorFilterEngineLayer$1 = dart.constFn(dart_rti.findType("ui|ColorFilterEngineLayer(ui|ColorFilter{oldLayer:ui|ColorFilterEngineLayer?})")))(),
    ImageFilter__ToImageFilterEngineLayer$1: () => (T$11.ImageFilter__ToImageFilterEngineLayer$1 = dart.constFn(dart_rti.findType("ui|ImageFilterEngineLayer(ui|ImageFilter{offset:ui|Offset,oldLayer:ui|ImageFilterEngineLayer?})")))(),
    ImageFilter__ToBackdropFilterEngineLayer$1: () => (T$11.ImageFilter__ToBackdropFilterEngineLayer$1 = dart.constFn(dart_rti.findType("ui|BackdropFilterEngineLayer(ui|ImageFilter{blendMode:ui|BlendMode,oldLayer:ui|BackdropFilterEngineLayer?})")))(),
    ShaderAndRectAndBlendMode__ToShaderMaskEngineLayer$1: () => (T$11.ShaderAndRectAndBlendMode__ToShaderMaskEngineLayer$1 = dart.constFn(dart_rti.findType("ui|ShaderMaskEngineLayer(ui|Shader,ui|Rect,ui|BlendMode{filterQuality:ui|FilterQuality,oldLayer:ui|ShaderMaskEngineLayer?})")))(),
    intAnddoubleAnddouble__Tovoid: () => (T$11.intAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|double,core|double,core|double,core|double)")))(),
    doubleAnddoubleAnddouble__Tovoid$6: () => (T$11.doubleAnddoubleAnddouble__Tovoid$6 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|int,ui|FilterQuality)")))(),
    doubleAnddoubleAnddouble__Tovoid$7: () => (T$11.doubleAnddoubleAnddouble__Tovoid$7 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|int)")))(),
    PersistedSceneN: () => (T$11.PersistedSceneN = dart.constFn(dart_rti.findType("_engine|PersistedScene?")))(),
    ListOfPersistedContainerSurface: () => (T$11.ListOfPersistedContainerSurface = dart.constFn(dart_rti.findType("core|List<_engine|PersistedContainerSurface>")))(),
    Gradient: () => (T$11.Gradient = dart.constFn(dart_rti.findType("ui|Gradient")))(),
    DomCanvasRenderingContext2DAndRectNAnddoubleToObject: () => (T$11.DomCanvasRenderingContext2DAndRectNAnddoubleToObject = dart.constFn(dart_rti.findType("core|Object(_interceptors|JavaScriptObject,ui|Rect?,core|double)")))(),
    TileModeAndTileModeToString: () => (T$11.TileModeAndTileModeToString = dart.constFn(dart_rti.findType("core|String(ui|TileMode,ui|TileMode)")))(),
    HtmlImageAndTileModeAndTileModeToObjectN: () => (T$11.HtmlImageAndTileModeAndTileModeToObjectN = dart.constFn(dart_rti.findType("core|Object?(_engine|HtmlImage,ui|TileMode,ui|TileMode)")))(),
    DomCanvasRenderingContext2DNAndRectAnddoubleToDomCanvasPattern: () => (T$11.DomCanvasRenderingContext2DNAndRectAnddoubleToDomCanvasPattern = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_interceptors|JavaScriptObject?,ui|Rect,core|double)")))(),
    ColorTobool: () => (T$11.ColorTobool = dart.constFn(dart_rti.findType("core|bool(ui|Color)")))(),
    ListOfColor__ToNormalizedGradient: () => (T$11.ListOfColor__ToNormalizedGradient = dart.constFn(dart_rti.findType("_engine|NormalizedGradient(core|List<ui|Color>{stops:core|List<core|double>?})")))(),
    GlContextAndGlProgramTovoid: () => (T$11.GlContextAndGlProgramTovoid = dart.constFn(dart_rti.findType("~(_engine|GlContext,_engine|GlProgram)")))(),
    intAndintToGlContext: () => (T$11.intAndintToGlContext = dart.constFn(dart_rti.findType("_engine|GlContext(core|int,core|int)")))(),
    OffScreenCanvasN: () => (T$11.OffScreenCanvasN = dart.constFn(dart_rti.findType("_engine|OffScreenCanvas?")))(),
    RectNAnddoubleAndboolToObject: () => (T$11.RectNAnddoubleAndboolToObject = dart.constFn(dart_rti.findType("core|Object(ui|Rect?,core|double,core|bool)")))(),
    DomCanvasRenderingContext2DNAndRectNAnddoubleToObject: () => (T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToObject = dart.constFn(dart_rti.findType("core|Object(_interceptors|JavaScriptObject?,ui|Rect?,core|double)")))(),
    NormalizedGradientAndTileModeToString: () => (T$11.NormalizedGradientAndTileModeToString = dart.constFn(dart_rti.findType("core|String(_engine|NormalizedGradient,ui|TileMode)")))(),
    DomCanvasRenderingContext2DNAndRectNAnddoubleToDomCanvasGradient: () => (T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToDomCanvasGradient = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_interceptors|JavaScriptObject?,ui|Rect?,core|double)")))(),
    DomCanvasRenderingContext2DNAndRectNAnddoubleToDomCanvasPattern: () => (T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToDomCanvasPattern = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_interceptors|JavaScriptObject?,ui|Rect?,core|double)")))(),
    FastMatrix32N: () => (T$11.FastMatrix32N = dart.constFn(dart_rti.findType("_engine|FastMatrix32?")))(),
    NormalizedGradientAndRectAndTileModeToString: () => (T$11.NormalizedGradientAndRectAndTileModeToString = dart.constFn(dart_rti.findType("core|String(_engine|NormalizedGradient,ui|Rect,ui|TileMode)")))(),
    __ToEngineImageFilter: () => (T$11.__ToEngineImageFilter = dart.constFn(dart_rti.findType("_engine|EngineImageFilter({sigmaX!core|double,sigmaY!core|double,tileMode!ui|TileMode})")))(),
    __ToEngineImageFilter$1: () => (T$11.__ToEngineImageFilter$1 = dart.constFn(dart_rti.findType("_engine|EngineImageFilter({filterQuality!ui|FilterQuality,matrix!typed_data|Float64List})")))(),
    _BlurEngineImageFilter: () => (T$11._BlurEngineImageFilter = dart.constFn(dart_rti.findType("_engine|_BlurEngineImageFilter")))(),
    _MatrixEngineImageFilter: () => (T$11._MatrixEngineImageFilter = dart.constFn(dart_rti.findType("_engine|_MatrixEngineImageFilter")))(),
    DomElementNToDomElementN: () => (T$11.DomElementNToDomElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject?)")))(),
    DomNodeNToDomElementN: () => (T$11.DomNodeNToDomElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject?)")))(),
    ShaderDeclaration: () => (T$11.ShaderDeclaration = dart.constFn(dart_rti.findType("_engine|ShaderDeclaration")))(),
    ShaderMethod: () => (T$11.ShaderMethod = dart.constFn(dart_rti.findType("_engine|ShaderMethod")))(),
    int__ToShaderDeclaration: () => (T$11.int__ToShaderDeclaration = dart.constFn(dart_rti.findType("_engine|ShaderDeclaration(core|int{name:core|String?})")))(),
    intAndString__ToShaderDeclaration: () => (T$11.intAndString__ToShaderDeclaration = dart.constFn(dart_rti.findType("_engine|ShaderDeclaration(core|int,core|String{name:core|String?})")))(),
    StringBufferAndShaderDeclarationTovoid: () => (T$11.StringBufferAndShaderDeclarationTovoid = dart.constFn(dart_rti.findType("~(core|StringBuffer,_engine|ShaderDeclaration)")))(),
    StringToShaderMethod: () => (T$11.StringToShaderMethod = dart.constFn(dart_rti.findType("_engine|ShaderMethod(core|String)")))(),
    ListOfShaderDeclaration: () => (T$11.ListOfShaderDeclaration = dart.constFn(dart_rti.findType("core|List<_engine|ShaderDeclaration>")))(),
    ListOfShaderMethod: () => (T$11.ListOfShaderMethod = dart.constFn(dart_rti.findType("core|List<_engine|ShaderMethod>")))(),
    ShaderDeclarationN: () => (T$11.ShaderDeclarationN = dart.constFn(dart_rti.findType("_engine|ShaderDeclaration?")))(),
    StringAndStringAndTileModeTovoid: () => (T$11.StringAndStringAndTileModeTovoid = dart.constFn(dart_rti.findType("~(core|String,core|String,ui|TileMode)")))(),
    boolAndTileModeNAndTileModeNToString: () => (T$11.boolAndTileModeNAndTileModeNToString = dart.constFn(dart_rti.findType("core|String(core|bool,ui|TileMode?,ui|TileMode?)")))(),
    ListOfPersistedSurfaceState: () => (T$11.ListOfPersistedSurfaceState = dart.constFn(dart_rti.findType("core|List<_engine|PersistedSurfaceState>")))(),
    PersistedSurfaceStateL: () => (T$11.PersistedSurfaceStateL = dart.constFn(dart_rti.findType("_engine|PersistedSurfaceState*")))(),
    DebugSurfaceStatsTovoid: () => (T$11.DebugSurfaceStatsTovoid = dart.constFn(dart_rti.findType("~(_engine|DebugSurfaceStats)")))(),
    ListOfintN: () => (T$11.ListOfintN = dart.constFn(dart_rti.findType("core|List<core|int?>")))(),
    ListOfImageFileFormat: () => (T$11.ListOfImageFileFormat = dart.constFn(dart_rti.findType("core|List<_engine|ImageFileFormat>")))(),
    ImageFileFormatL: () => (T$11.ImageFileFormatL = dart.constFn(dart_rti.findType("_engine|ImageFileFormat*")))(),
    ListOfDebugEngineInitializationState: () => (T$11.ListOfDebugEngineInitializationState = dart.constFn(dart_rti.findType("core|List<_engine|DebugEngineInitializationState>")))(),
    DebugEngineInitializationState: () => (T$11.DebugEngineInitializationState = dart.constFn(dart_rti.findType("_engine|DebugEngineInitializationState")))(),
    DebugEngineInitializationStateL: () => (T$11.DebugEngineInitializationStateL = dart.constFn(dart_rti.findType("_engine|DebugEngineInitializationState*")))(),
    doubleToJsFlutterViewOptionsN: () => (T$11.doubleToJsFlutterViewOptionsN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|double)")))(),
    FutureOfJSObject: () => (T$11.FutureOfJSObject = dart.constFn(dart_rti.findType("async|Future<_interceptors|JSObject>")))(),
    JsFlutterConfigurationNToJSObject: () => (T$11.JsFlutterConfigurationNToJSObject = dart.constFn(dart_rti.findType("_interceptors|JSObject([_interceptors|JavaScriptObject?])")))(),
    RunAppFnParametersNToJSObject: () => (T$11.RunAppFnParametersNToJSObject = dart.constFn(dart_rti.findType("_interceptors|JSObject([_interceptors|JavaScriptObject?])")))(),
    DomKeyboardEvent: () => (T$11.DomKeyboardEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringAndDomEventListenerTovoid: () => (T$11.StringAndDomEventListenerTovoid = dart.constFn(dart_rti.findType("~(core|String,_interceptors|JavaScriptObject)")))(),
    KeyboardBindingN: () => (T$11.KeyboardBindingN = dart.constFn(dart_rti.findType("_engine|KeyboardBinding?")))(),
    KeyboardConverter: () => (T$11.KeyboardConverter = dart.constFn(dart_rti.findType("_engine|KeyboardConverter")))(),
    StringAndFnTovoid$2: () => (T$11.StringAndFnTovoid$2 = dart.constFn(dart_rti.findType("~(core|String,~(_interceptors|JavaScriptObject))")))(),
    KeyDataTobool: () => (T$11.KeyDataTobool = dart.constFn(dart_rti.findType("core|bool(ui|KeyData)")))(),
    KeyboardConverterN: () => (T$11.KeyboardConverterN = dart.constFn(dart_rti.findType("_engine|KeyboardConverter?")))(),
    MapOfString$DomEventListener: () => (T$11.MapOfString$DomEventListener = dart.constFn(dart_rti.findType("core|Map<core|String,_interceptors|JavaScriptObject>")))(),
    KeyData: () => (T$11.KeyData = dart.constFn(dart_rti.findType("ui|KeyData")))(),
    VoidToKeyData: () => (T$11.VoidToKeyData = dart.constFn(dart_rti.findType("ui|KeyData()")))(),
    intAndFnTovoid: () => (T$11.intAndFnTovoid = dart.constFn(dart_rti.findType("~(core|int,core|bool(_engine|FlutterHtmlKeyboardEvent))")))(),
    OperatingSystemToLocaleKeymap: () => (T$11.OperatingSystemToLocaleKeymap = dart.constFn(dart_rti.findType("_web_locale_keymap|LocaleKeymap(ui_web|OperatingSystem)")))(),
    FlutterHtmlKeyboardEventToint: () => (T$11.FlutterHtmlKeyboardEventToint = dart.constFn(dart_rti.findType("core|int(_engine|FlutterHtmlKeyboardEvent)")))(),
    intAndFlutterHtmlKeyboardEventToint: () => (T$11.intAndFlutterHtmlKeyboardEventToint = dart.constFn(dart_rti.findType("core|int(core|int,_engine|FlutterHtmlKeyboardEvent)")))(),
    DurationAndFnAndFnToFn: () => (T$11.DurationAndFnAndFnToFn = dart.constFn(dart_rti.findType("~()(core|Duration,ui|KeyData(),~())")))(),
    intAndintAndDurationTovoid: () => (T$11.intAndintAndDurationTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,core|Duration)")))(),
    FlutterHtmlKeyboardEventTovoid: () => (T$11.FlutterHtmlKeyboardEventTovoid = dart.constFn(dart_rti.findType("~(_engine|FlutterHtmlKeyboardEvent)")))(),
    boolAndboolAndbool__Tovoid$1: () => (T$11.boolAndboolAndbool__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|bool,core|bool,core|bool,core|bool,core|num)")))(),
    intAndintAndint__Tovoid$29: () => (T$11.intAndintAndint__Tovoid$29 = dart.constFn(dart_rti.findType("~(core|int,core|int,core|int,ui|KeyEventType,core|num)")))(),
    numAndintAndintTovoid: () => (T$11.numAndintAndintTovoid = dart.constFn(dart_rti.findType("~(core|num,core|int,core|int)")))(),
    LocaleKeymap: () => (T$11.LocaleKeymap = dart.constFn(dart_rti.findType("_web_locale_keymap|LocaleKeymap")))(),
    KeyDataToNbool: () => (T$11.KeyDataToNbool = dart.constFn(dart_rti.findType("core|bool(ui|KeyData)?")))(),
    MapOfint$int: () => (T$11.MapOfint$int = dart.constFn(dart_rti.findType("core|Map<core|int,core|int>")))(),
    MapOfint$VoidTovoid: () => (T$11.MapOfint$VoidTovoid = dart.constFn(dart_rti.findType("core|Map<core|int,~()>")))(),
    LayerSlice: () => (T$11.LayerSlice = dart.constFn(dart_rti.findType("_engine|LayerSlice")))(),
    ListOfLayerSlice: () => (T$11.ListOfLayerSlice = dart.constFn(dart_rti.findType("core|List<_engine|LayerSlice>")))(),
    SceneCanvasAndRectTovoid: () => (T$11.SceneCanvasAndRectTovoid = dart.constFn(dart_rti.findType("~(_engine|SceneCanvas,ui|Rect)")))(),
    VoidToPlatformViewStyling: () => (T$11.VoidToPlatformViewStyling = dart.constFn(dart_rti.findType("_engine|PlatformViewStyling()")))(),
    SceneImageFilter: () => (T$11.SceneImageFilter = dart.constFn(dart_rti.findType("_engine|SceneImageFilter")))(),
    PlatformViewStyling: () => (T$11.PlatformViewStyling = dart.constFn(dart_rti.findType("_engine|PlatformViewStyling")))(),
    ListOfPlatformView: () => (T$11.ListOfPlatformView = dart.constFn(dart_rti.findType("core|List<_engine|PlatformView>")))(),
    ScenePicture: () => (T$11.ScenePicture = dart.constFn(dart_rti.findType("_engine|ScenePicture")))(),
    Picture: () => (T$11.Picture = dart.constFn(dart_rti.findType("ui|Picture")))(),
    PlatformViewPosition: () => (T$11.PlatformViewPosition = dart.constFn(dart_rti.findType("_engine|PlatformViewPosition")))(),
    PlatformViewPositionAndPlatformViewPositionToPlatformViewPosition: () => (T$11.PlatformViewPositionAndPlatformViewPositionToPlatformViewPosition = dart.constFn(dart_rti.findType("_engine|PlatformViewPosition(_engine|PlatformViewPosition,_engine|PlatformViewPosition)")))(),
    OffsetN: () => (T$11.OffsetN = dart.constFn(dart_rti.findType("ui|Offset?")))(),
    PlatformViewStylingAndPlatformViewStylingToPlatformViewStyling: () => (T$11.PlatformViewStylingAndPlatformViewStylingToPlatformViewStyling = dart.constFn(dart_rti.findType("_engine|PlatformViewStyling(_engine|PlatformViewStyling,_engine|PlatformViewStyling)")))(),
    PictureDrawCommand: () => (T$11.PictureDrawCommand = dart.constFn(dart_rti.findType("_engine|PictureDrawCommand")))(),
    PlatformView: () => (T$11.PlatformView = dart.constFn(dart_rti.findType("_engine|PlatformView")))(),
    SceneCanvas: () => (T$11.SceneCanvas = dart.constFn(dart_rti.findType("_engine|SceneCanvas")))(),
    PictureRecorder: () => (T$11.PictureRecorder = dart.constFn(dart_rti.findType("ui|PictureRecorder")))(),
    PictureSlice: () => (T$11.PictureSlice = dart.constFn(dart_rti.findType("_engine|PictureSlice")))(),
    PlatformViewSlice: () => (T$11.PlatformViewSlice = dart.constFn(dart_rti.findType("_engine|PlatformViewSlice")))(),
    VoidToLayerBuilder: () => (T$11.VoidToLayerBuilder = dart.constFn(dart_rti.findType("_engine|LayerBuilder()")))(),
    __ToLayerBuilder: () => (T$11.__ToLayerBuilder = dart.constFn(dart_rti.findType("_engine|LayerBuilder({layer!_engine|PictureEngineLayer,operation!_engine|LayerOperation,parent!_engine|LayerBuilder})")))(),
    RectToRec: () => (T$11.RectToRec = dart.constFn(dart_rti.findType("+(ui|PictureRecorder,_engine|SceneCanvas)(ui|Rect)")))(),
    PictureEngineLayerTovoid: () => (T$11.PictureEngineLayerTovoid = dart.constFn(dart_rti.findType("~(_engine|PictureEngineLayer)")))(),
    VoidToPictureEngineLayer: () => (T$11.VoidToPictureEngineLayer = dart.constFn(dart_rti.findType("_engine|PictureEngineLayer()")))(),
    RectToNRec: () => (T$11.RectToNRec = dart.constFn(dart_rti.findType("+(ui|PictureRecorder,_engine|SceneCanvas)(ui|Rect)?")))(),
    LayerBuilderN: () => (T$11.LayerBuilderN = dart.constFn(dart_rti.findType("_engine|LayerBuilder?")))(),
    PictureEngineLayer: () => (T$11.PictureEngineLayer = dart.constFn(dart_rti.findType("_engine|PictureEngineLayer")))(),
    LayerOperationN: () => (T$11.LayerOperationN = dart.constFn(dart_rti.findType("_engine|LayerOperation?")))(),
    ListOfPictureDrawCommand: () => (T$11.ListOfPictureDrawCommand = dart.constFn(dart_rti.findType("core|List<_engine|PictureDrawCommand>")))(),
    PlatformViewStylingN: () => (T$11.PlatformViewStylingN = dart.constFn(dart_rti.findType("_engine|PlatformViewStyling?")))(),
    StringNToString: () => (T$11.StringNToString = dart.constFn(dart_rti.findType("core|String(core|String?)")))(),
    UrlStrategyTovoid: () => (T$11.UrlStrategyTovoid = dart.constFn(dart_rti.findType("~(ui_web|UrlStrategy)")))(),
    ObjectNAndintToObject: () => (T$11.ObjectNAndintToObject = dart.constFn(dart_rti.findType("core|Object(core|Object?,core|int)")))(),
    StringN__Tovoid$1: () => (T$11.StringN__Tovoid$1 = dart.constFn(dart_rti.findType("~(core|String?{replace:core|bool,state:core|Object?})")))(),
    UrlStrategyN: () => (T$11.UrlStrategyN = dart.constFn(dart_rti.findType("ui_web|UrlStrategy?")))(),
    ObjectNToMapOfString$dynamic: () => (T$11.ObjectNToMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>(core|Object?)")))(),
    UrlStrategy__Tovoid: () => (T$11.UrlStrategy__Tovoid = dart.constFn(dart_rti.findType("~(ui_web|UrlStrategy{path:core|String?,replace:core|bool})")))(),
    MethodCall: () => (T$11.MethodCall = dart.constFn(dart_rti.findType("_engine|MethodCall")))(),
    ListNOfNotoFont: () => (T$11.ListNOfNotoFont = dart.constFn(dart_rti.findType("core|List<_engine|NotoFont>?")))(),
    DomMediaQueryListEvent: () => (T$11.DomMediaQueryListEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    FnTovoid$42: () => (T$11.FnTovoid$42 = dart.constFn(dart_rti.findType("~(~(core|bool))")))(),
    HighContrastSupport: () => (T$11.HighContrastSupport = dart.constFn(dart_rti.findType("_engine|HighContrastSupport")))(),
    ListOfboolTovoid: () => (T$11.ListOfboolTovoid = dart.constFn(dart_rti.findType("core|List<~(core|bool)>")))(),
    DomMediaQueryList: () => (T$11.DomMediaQueryList = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    EngineFlutterWindowN: () => (T$11.EngineFlutterWindowN = dart.constFn(dart_rti.findType("_engine|EngineFlutterWindow?")))(),
    ViewFocusEvent: () => (T$11.ViewFocusEvent = dart.constFn(dart_rti.findType("ui|ViewFocusEvent")))(),
    FlutterView: () => (T$11.FlutterView = dart.constFn(dart_rti.findType("ui|FlutterView")))(),
    PointerDataPacket: () => (T$11.PointerDataPacket = dart.constFn(dart_rti.findType("ui|PointerDataPacket")))(),
    HttpFetchResponse: () => (T$11.HttpFetchResponse = dart.constFn(dart_rti.findType("_engine|HttpFetchResponse")))(),
    EngineFlutterViewN: () => (T$11.EngineFlutterViewN = dart.constFn(dart_rti.findType("_engine|EngineFlutterView?")))(),
    LocaleL: () => (T$11.LocaleL = dart.constFn(dart_rti.findType("ui|Locale*")))(),
    DomMutationRecord: () => (T$11.DomMutationRecord = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    JSArrayOfObjectNAndDomMutationObserverTovoid: () => (T$11.JSArrayOfObjectNAndDomMutationObserverTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JSArray<core|Object?>,_interceptors|JavaScriptObject)")))(),
    EngineAccessibilityFeatures: () => (T$11.EngineAccessibilityFeatures = dart.constFn(dart_rti.findType("_engine|EngineAccessibilityFeatures")))(),
    SemanticsActionEvent: () => (T$11.SemanticsActionEvent = dart.constFn(dart_rti.findType("ui|SemanticsActionEvent")))(),
    StreamSubscriptionOfint: () => (T$11.StreamSubscriptionOfint = dart.constFn(dart_rti.findType("async|StreamSubscription<core|int>")))(),
    EnginePlatformDispatcher: () => (T$11.EnginePlatformDispatcher = dart.constFn(dart_rti.findType("_engine|EnginePlatformDispatcher")))(),
    VoidToEngineAccessibilityFeatures: () => (T$11.VoidToEngineAccessibilityFeatures = dart.constFn(dart_rti.findType("_engine|EngineAccessibilityFeatures()")))(),
    AppLifecycleState$1: () => (T$11.AppLifecycleState$1 = dart.constFn(dart_rti.findType("_engine|AppLifecycleState")))(),
    IterableOfEngineFlutterView: () => (T$11.IterableOfEngineFlutterView = dart.constFn(dart_rti.findType("core|Iterable<_engine|EngineFlutterView>")))(),
    __ToEngineFlutterViewN: () => (T$11.__ToEngineFlutterViewN = dart.constFn(dart_rti.findType("_engine|EngineFlutterView?({id!core|int})")))(),
    ViewFocusBinding: () => (T$11.ViewFocusBinding = dart.constFn(dart_rti.findType("_engine|ViewFocusBinding")))(),
    ViewFocusEventToNvoid: () => (T$11.ViewFocusEventToNvoid = dart.constFn(dart_rti.findType("~(ui|ViewFocusEvent)?")))(),
    ViewFocusEventTovoid: () => (T$11.ViewFocusEventTovoid = dart.constFn(dart_rti.findType("~(ui|ViewFocusEvent)")))(),
    __Tovoid$15: () => (T$11.__Tovoid$15 = dart.constFn(dart_rti.findType("~({direction!ui|ViewFocusDirection,state!ui|ViewFocusState,viewId!core|int})")))(),
    DurationToNvoid: () => (T$11.DurationToNvoid = dart.constFn(dart_rti.findType("~(core|Duration)?")))(),
    DurationTovoid: () => (T$11.DurationTovoid = dart.constFn(dart_rti.findType("~(core|Duration)")))(),
    PointerDataPacketToNvoid: () => (T$11.PointerDataPacketToNvoid = dart.constFn(dart_rti.findType("~(ui|PointerDataPacket)?")))(),
    PointerDataPacketTovoid: () => (T$11.PointerDataPacketTovoid = dart.constFn(dart_rti.findType("~(ui|PointerDataPacket)")))(),
    KeyDataAndFnTovoid: () => (T$11.KeyDataAndFnTovoid = dart.constFn(dart_rti.findType("~(ui|KeyData,~(core|bool))")))(),
    ListOfFrameTimingToNvoid: () => (T$11.ListOfFrameTimingToNvoid = dart.constFn(dart_rti.findType("~(core|List<ui|FrameTiming>)?")))(),
    ListOfFrameTimingTovoid: () => (T$11.ListOfFrameTimingTovoid = dart.constFn(dart_rti.findType("~(core|List<ui|FrameTiming>)")))(),
    StringAndByteDataNAndFnTovoid$1: () => (T$11.StringAndByteDataNAndFnTovoid$1 = dart.constFn(dart_rti.findType("~(core|String,typed_data|ByteData?,~(typed_data|ByteData?)?)")))(),
    StringAndByteDataNAndint__Tovoid: () => (T$11.StringAndByteDataNAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|String,typed_data|ByteData?,core|int,core|Object)")))(),
    RootIsolateTokenTovoid: () => (T$11.RootIsolateTokenTovoid = dart.constFn(dart_rti.findType("~(ui|RootIsolateToken)")))(),
    StringAndByteDataNAndFnToNvoid: () => (T$11.StringAndByteDataNAndFnToNvoid = dart.constFn(dart_rti.findType("~(core|String,typed_data|ByteData?,~(typed_data|ByteData?)?)?")))(),
    FnToFn$7: () => (T$11.FnToFn$7 = dart.constFn(dart_rti.findType("~(typed_data|ByteData?)?(~(typed_data|ByteData?)?)")))(),
    StringAndFnToFutureOfvoid$1: () => (T$11.StringAndFnToFutureOfvoid$1 = dart.constFn(dart_rti.findType("async|Future<~>(core|String,~(typed_data|ByteData?)?)")))(),
    __Tovoid$16: () => (T$11.__Tovoid$16 = dart.constFn(dart_rti.findType("~({beginFrame!~(),drawFrame!~()})")))(),
    SceneAndFlutterViewNToFutureOfvoid: () => (T$11.SceneAndFlutterViewNToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(ui|Scene[ui|FlutterView?])")))(),
    AccessibilityFeatures: () => (T$11.AccessibilityFeatures = dart.constFn(dart_rti.findType("ui|AccessibilityFeatures")))(),
    ListOfLocale: () => (T$11.ListOfLocale = dart.constFn(dart_rti.findType("core|List<ui|Locale>")))(),
    ListOfLocaleToLocaleN: () => (T$11.ListOfLocaleToLocaleN = dart.constFn(dart_rti.findType("ui|Locale?(core|List<ui|Locale>)")))(),
    VoidToListOfLocale: () => (T$11.VoidToListOfLocale = dart.constFn(dart_rti.findType("core|List<ui|Locale>()")))(),
    AppLifecycleStateTovoid: () => (T$11.AppLifecycleStateTovoid = dart.constFn(dart_rti.findType("~(ui|AppLifecycleState)")))(),
    BrightnessTovoid: () => (T$11.BrightnessTovoid = dart.constFn(dart_rti.findType("~(ui|Brightness)")))(),
    SemanticsActionEventToNvoid: () => (T$11.SemanticsActionEventToNvoid = dart.constFn(dart_rti.findType("~(ui|SemanticsActionEvent)?")))(),
    intAndSemanticsActionAndByteDataNTovoid: () => (T$11.intAndSemanticsActionAndByteDataNTovoid = dart.constFn(dart_rti.findType("~(core|int,ui|SemanticsAction,typed_data|ByteData?)")))(),
    ObjectAndStackTraceToNbool: () => (T$11.ObjectAndStackTraceToNbool = dart.constFn(dart_rti.findType("core|bool(core|Object,core|StackTrace)?")))(),
    FnAndByteDataNTovoid: () => (T$11.FnAndByteDataNTovoid = dart.constFn(dart_rti.findType("~(~(typed_data|ByteData?)?,typed_data|ByteData?)")))(),
    FrameData: () => (T$11.FrameData = dart.constFn(dart_rti.findType("ui|FrameData")))(),
    PlatformConfiguration: () => (T$11.PlatformConfiguration = dart.constFn(dart_rti.findType("_engine|PlatformConfiguration")))(),
    ZoneN: () => (T$11.ZoneN = dart.constFn(dart_rti.findType("async|Zone?")))(),
    IterableOfEngineFlutterDisplay: () => (T$11.IterableOfEngineFlutterDisplay = dart.constFn(dart_rti.findType("core|Iterable<_engine|EngineFlutterDisplay>")))(),
    FlutterViewManagerN: () => (T$11.FlutterViewManagerN = dart.constFn(dart_rti.findType("_engine|FlutterViewManager?")))(),
    AppLifecycleStateN: () => (T$11.AppLifecycleStateN = dart.constFn(dart_rti.findType("_engine|AppLifecycleState?")))(),
    ViewFocusBindingN: () => (T$11.ViewFocusBindingN = dart.constFn(dart_rti.findType("_engine|ViewFocusBinding?")))(),
    SetNOfFlutterView: () => (T$11.SetNOfFlutterView = dart.constFn(dart_rti.findType("core|Set<ui|FlutterView>?")))(),
    DomSubscriptionN: () => (T$11.DomSubscriptionN = dart.constFn(dart_rti.findType("_engine|DomSubscription?")))(),
    DomMutationObserverN: () => (T$11.DomMutationObserverN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    DisplayFeatureL: () => (T$11.DisplayFeatureL = dart.constFn(dart_rti.findType("ui|DisplayFeature*")))(),
    __ToViewConfiguration: () => (T$11.__ToViewConfiguration = dart.constFn(dart_rti.findType("_engine|ViewConfiguration({devicePixelRatio:core|double?,displayFeatures:core|List<ui|DisplayFeature>?,gestureSettings:ui|GestureSettings?,padding:_engine|ViewPadding?,systemGestureInsets:_engine|ViewPadding?,view:_engine|EngineFlutterView?,viewInsets:_engine|ViewPadding?,viewPadding:_engine|ViewPadding?,visible:core|bool?})")))(),
    ViewPadding$1: () => (T$11.ViewPadding$1 = dart.constFn(dart_rti.findType("_engine|ViewPadding")))(),
    ListOfDisplayFeature: () => (T$11.ListOfDisplayFeature = dart.constFn(dart_rti.findType("core|List<ui|DisplayFeature>")))(),
    __ToPlatformConfiguration: () => (T$11.__ToPlatformConfiguration = dart.constFn(dart_rti.findType("_engine|PlatformConfiguration({accessibilityFeatures:ui|AccessibilityFeatures?,alwaysUse24HourFormat:core|bool?,defaultRouteName:core|String?,locales:core|List<ui|Locale>?,platformBrightness:ui|Brightness?,semanticsEnabled:core|bool?,systemFontFamily:core|String?,textScaleFactor:core|double?})")))(),
    FlutterViewManagerToAppLifecycleState: () => (T$11.FlutterViewManagerToAppLifecycleState = dart.constFn(dart_rti.findType("_engine|AppLifecycleState(_engine|FlutterViewManager)")))(),
    FnTovoid$43: () => (T$11.FnTovoid$43 = dart.constFn(dart_rti.findType("~(~(ui|AppLifecycleState))")))(),
    ListOfAppLifecycleStateTovoid: () => (T$11.ListOfAppLifecycleStateTovoid = dart.constFn(dart_rti.findType("core|List<~(ui|AppLifecycleState)>")))(),
    StreamSubscriptionOfvoid: () => (T$11.StreamSubscriptionOfvoid = dart.constFn(dart_rti.findType("async|StreamSubscription<~>")))(),
    ListOfStreamSubscriptionOfvoid: () => (T$11.ListOfStreamSubscriptionOfvoid = dart.constFn(dart_rti.findType("core|List<async|StreamSubscription<~>>")))(),
    DomFocusEvent: () => (T$11.DomFocusEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    intAndViewFocusStateTovoid: () => (T$11.intAndViewFocusStateTovoid = dart.constFn(dart_rti.findType("~(core|int,ui|ViewFocusState)")))(),
    DomElementNTointN: () => (T$11.DomElementNTointN = dart.constFn(dart_rti.findType("core|int?(_interceptors|JavaScriptObject?)")))(),
    intN__Tovoid: () => (T$11.intN__Tovoid = dart.constFn(dart_rti.findType("~(core|int?{reachableByKeyboard!core|bool})")))(),
    int__ToDomElement: () => (T$11.int__ToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|int{params:core|Object?})")))(),
    int__ToObject: () => (T$11.int__ToObject = dart.constFn(dart_rti.findType("core|Object(core|int{params:core|Object?})")))(),
    intLToObjectL: () => (T$11.intLToObjectL = dart.constFn(dart_rti.findType("core|Object*(core|int*)")))(),
    intL__ToObjectL: () => (T$11.intL__ToObjectL = dart.constFn(dart_rti.findType("core|Object*(core|int*{params:core|Object?})")))(),
    intToDomElementN: () => (T$11.intToDomElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|int)")))(),
    intToDomElement: () => (T$11.intToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|int)")))(),
    StringAndintAndObjectNToDomElement: () => (T$11.StringAndintAndObjectNToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String,core|int,core|Object?)")))(),
    DomElementAndStringTovoid: () => (T$11.DomElementAndStringTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|String)")))(),
    PlatformViewManager: () => (T$11.PlatformViewManager = dart.constFn(dart_rti.findType("_engine|PlatformViewManager")))(),
    MapOfint$DomElement: () => (T$11.MapOfint$DomElement = dart.constFn(dart_rti.findType("core|Map<core|int,_interceptors|JavaScriptObject>")))(),
    MapOfint$String: () => (T$11.MapOfint$String = dart.constFn(dart_rti.findType("core|Map<core|int,core|String>")))(),
    Fn__Tovoid: () => (T$11.Fn__Tovoid = dart.constFn(dart_rti.findType("~(~(typed_data|ByteData?){params!core|Object?,platformViewId!core|int,platformViewType!core|String})")))(),
    Fn__Tovoid$1: () => (T$11.Fn__Tovoid$1 = dart.constFn(dart_rti.findType("~(~(typed_data|ByteData?){platformViewId!core|int})")))(),
    StringAnddynamicAndFnTovoid: () => (T$11.StringAnddynamicAndFnTovoid = dart.constFn(dart_rti.findType("~(core|String,@,~(typed_data|ByteData?))")))(),
    PlatformViewMessageHandler: () => (T$11.PlatformViewMessageHandler = dart.constFn(dart_rti.findType("_engine|PlatformViewMessageHandler")))(),
    MethodCodec: () => (T$11.MethodCodec = dart.constFn(dart_rti.findType("_engine|MethodCodec")))(),
    _BaseAdapter: () => (T$11._BaseAdapter = dart.constFn(dart_rti.findType("_engine|_BaseAdapter")))(),
    KeyboardConverterNTovoid: () => (T$11.KeyboardConverterNTovoid = dart.constFn(dart_rti.findType("~(_engine|KeyboardConverter?)")))(),
    VoidTo_BaseAdapter: () => (T$11.VoidTo_BaseAdapter = dart.constFn(dart_rti.findType("_engine|_BaseAdapter()")))(),
    SafariPointerEventWorkaround: () => (T$11.SafariPointerEventWorkaround = dart.constFn(dart_rti.findType("_engine|SafariPointerEventWorkaround")))(),
    ClickDebouncer: () => (T$11.ClickDebouncer = dart.constFn(dart_rti.findType("_engine|ClickDebouncer")))(),
    SafariPointerEventWorkaroundN: () => (T$11.SafariPointerEventWorkaroundN = dart.constFn(dart_rti.findType("_engine|SafariPointerEventWorkaround?")))(),
    PointerSupportDetector: () => (T$11.PointerSupportDetector = dart.constFn(dart_rti.findType("_engine|PointerSupportDetector")))(),
    PointerDataConverter: () => (T$11.PointerDataConverter = dart.constFn(dart_rti.findType("_engine|PointerDataConverter")))(),
    _BaseAdapterN: () => (T$11._BaseAdapterN = dart.constFn(dart_rti.findType("_engine|_BaseAdapter?")))(),
    RecOf__: () => (T$11.RecOf__ = dart.constFn(dart_rti.findType("+data,event,timeStamp(core|List<ui|PointerData>,_interceptors|JavaScriptObject,core|Duration)")))(),
    PointerData: () => (T$11.PointerData = dart.constFn(dart_rti.findType("ui|PointerData")))(),
    RecNOf__$1: () => (T$11.RecNOf__$1 = dart.constFn(dart_rti.findType("+queue,target,timer(core|List<+data,event,timeStamp(core|List<ui|PointerData>,_interceptors|JavaScriptObject,core|Duration)>,_interceptors|JavaScriptObject,async|Timer)?")))(),
    DomEventAndListOfPointerDataTovoid: () => (T$11.DomEventAndListOfPointerDataTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|List<ui|PointerData>)")))(),
    DomEventAndintAndboolTovoid: () => (T$11.DomEventAndintAndboolTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|int,core|bool)")))(),
    DomEventAndintTovoid: () => (T$11.DomEventAndintTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|int)")))(),
    DomEventTobool: () => (T$11.DomEventTobool = dart.constFn(dart_rti.findType("core|bool(_interceptors|JavaScriptObject)")))(),
    DomEventNAndListOfPointerDataTovoid: () => (T$11.DomEventNAndListOfPointerDataTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject?,core|List<ui|PointerData>)")))(),
    __ToListener: () => (T$11.__ToListener = dart.constFn(dart_rti.findType("_engine|Listener({event!core|String,handler!~(_interceptors|JavaScriptObject),passive:core|bool?,target!_interceptors|JavaScriptObject})")))(),
    Listener: () => (T$11.Listener = dart.constFn(dart_rti.findType("_engine|Listener")))(),
    DomEventTargetAndStringAndFnTovoid: () => (T$11.DomEventTargetAndStringAndFnTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|String,~(_interceptors|JavaScriptObject))")))(),
    PointerBinding: () => (T$11.PointerBinding = dart.constFn(dart_rti.findType("_engine|PointerBinding")))(),
    ListOfListener: () => (T$11.ListOfListener = dart.constFn(dart_rti.findType("core|List<_engine|Listener>")))(),
    DomWheelEventN: () => (T$11.DomWheelEventN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    __Tovoid$17: () => (T$11.__Tovoid$17 = dart.constFn(dart_rti.findType("~({allowPlatformDefault:core|bool})")))(),
    DomWheelEvent: () => (T$11.DomWheelEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    numAndnumNTobool: () => (T$11.numAndnumNTobool = dart.constFn(dart_rti.findType("core|bool(core|num,core|num?)")))(),
    DomWheelEventTobool: () => (T$11.DomWheelEventTobool = dart.constFn(dart_rti.findType("core|bool(_interceptors|JavaScriptObject)")))(),
    DomWheelEventToListOfPointerData: () => (T$11.DomWheelEventToListOfPointerData = dart.constFn(dart_rti.findType("core|List<ui|PointerData>(_interceptors|JavaScriptObject)")))(),
    FnTovoid$44: () => (T$11.FnTovoid$44 = dart.constFn(dart_rti.findType("~(~(_interceptors|JavaScriptObject))")))(),
    __To_SanitizedDetails: () => (T$11.__To_SanitizedDetails = dart.constFn(dart_rti.findType("_engine|_SanitizedDetails({button!core|int,buttons!core|int})")))(),
    __To_SanitizedDetails$1: () => (T$11.__To_SanitizedDetails$1 = dart.constFn(dart_rti.findType("_engine|_SanitizedDetails({buttons!core|int})")))(),
    __To_SanitizedDetailsN: () => (T$11.__To_SanitizedDetailsN = dart.constFn(dart_rti.findType("_engine|_SanitizedDetails?({buttons!core|int})")))(),
    __To_SanitizedDetailsN$1: () => (T$11.__To_SanitizedDetailsN$1 = dart.constFn(dart_rti.findType("_engine|_SanitizedDetails?({buttons!core|int?})")))(),
    VoidTo_SanitizedDetails: () => (T$11.VoidTo_SanitizedDetails = dart.constFn(dart_rti.findType("_engine|_SanitizedDetails()")))(),
    _ButtonSanitizer: () => (T$11._ButtonSanitizer = dart.constFn(dart_rti.findType("_engine|_ButtonSanitizer")))(),
    VoidTo_ButtonSanitizer: () => (T$11.VoidTo_ButtonSanitizer = dart.constFn(dart_rti.findType("_engine|_ButtonSanitizer()")))(),
    DomPointerEvent: () => (T$11.DomPointerEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomPointerEventToNull: () => (T$11.DomPointerEventToNull = dart.constFn(dart_rti.findType("core|Null(_interceptors|JavaScriptObject)")))(),
    VoidToIterableOfint: () => (T$11.VoidToIterableOfint = dart.constFn(dart_rti.findType("core|Iterable<core|int>()")))(),
    intTo_ButtonSanitizer: () => (T$11.intTo_ButtonSanitizer = dart.constFn(dart_rti.findType("_engine|_ButtonSanitizer(core|int)")))(),
    DomPointerEventTovoid: () => (T$11.DomPointerEventTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject)")))(),
    DomEventTargetAndStringAndFn__Tovoid: () => (T$11.DomEventTargetAndStringAndFn__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|String,@(_interceptors|JavaScriptObject){checkModifiers:core|bool})")))(),
    __Tovoid$18: () => (T$11.__Tovoid$18 = dart.constFn(dart_rti.findType("~({data!core|List<ui|PointerData>,details!_engine|_SanitizedDetails,event!_interceptors|JavaScriptObject})")))(),
    DomPointerEventToListOfDomPointerEvent: () => (T$11.DomPointerEventToListOfDomPointerEvent = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject>(_interceptors|JavaScriptObject)")))(),
    StringToPointerDeviceKind: () => (T$11.StringToPointerDeviceKind = dart.constFn(dart_rti.findType("ui|PointerDeviceKind(core|String)")))(),
    DomPointerEventToint: () => (T$11.DomPointerEventToint = dart.constFn(dart_rti.findType("core|int(_interceptors|JavaScriptObject)")))(),
    DomPointerEventTodouble: () => (T$11.DomPointerEventTodouble = dart.constFn(dart_rti.findType("core|double(_interceptors|JavaScriptObject)")))(),
    MapOfint$_ButtonSanitizer: () => (T$11.MapOfint$_ButtonSanitizer = dart.constFn(dart_rti.findType("core|Map<core|int,_engine|_ButtonSanitizer>")))(),
    _PointerDeviceState: () => (T$11._PointerDeviceState = dart.constFn(dart_rti.findType("_engine|_PointerDeviceState")))(),
    VoidTo_PointerDeviceState: () => (T$11.VoidTo_PointerDeviceState = dart.constFn(dart_rti.findType("_engine|_PointerDeviceState()")))(),
    intAnddoubleAnddoubleTo_PointerDeviceState: () => (T$11.intAnddoubleAnddoubleTo_PointerDeviceState = dart.constFn(dart_rti.findType("_engine|_PointerDeviceState(core|int,core|double,core|double)")))(),
    MapOfint$_PointerDeviceState: () => (T$11.MapOfint$_PointerDeviceState = dart.constFn(dart_rti.findType("core|Map<core|int,_engine|_PointerDeviceState>")))(),
    __ToPointerData: () => (T$11.__ToPointerData = dart.constFn(dart_rti.findType("ui|PointerData({buttons!core|int,change!ui|PointerChange,device!core|int,distance!core|double,distanceMax!core|double,kind!ui|PointerDeviceKind,obscured!core|bool,onRespond:~({allowPlatformDefault:core|bool})?,orientation!core|double,physicalX!core|double,physicalY!core|double,platformData!core|int,pressure!core|double,pressureMax!core|double,pressureMin!core|double,radiusMajor!core|double,radiusMax!core|double,radiusMin!core|double,radiusMinor!core|double,scale!core|double,scrollDeltaX!core|double,scrollDeltaY!core|double,signalKind:ui|PointerSignalKind?,size!core|double,tilt!core|double,timeStamp!core|Duration,viewId!core|int})")))(),
    intAnddoubleAnddoubleTobool: () => (T$11.intAnddoubleAnddoubleTobool = dart.constFn(dart_rti.findType("core|bool(core|int,core|double,core|double)")))(),
    __ToPointerData$1: () => (T$11.__ToPointerData$1 = dart.constFn(dart_rti.findType("ui|PointerData({buttons!core|int,change!ui|PointerChange,device!core|int,distance!core|double,distanceMax!core|double,kind!ui|PointerDeviceKind,obscured!core|bool,orientation!core|double,physicalX!core|double,physicalY!core|double,platformData!core|int,pressure!core|double,pressureMax!core|double,pressureMin!core|double,radiusMajor!core|double,radiusMax!core|double,radiusMin!core|double,radiusMinor!core|double,scale!core|double,scrollDeltaX!core|double,scrollDeltaY!core|double,size!core|double,tilt!core|double,timeStamp!core|Duration,viewId!core|int})")))(),
    ListOfPointerData__Tovoid: () => (T$11.ListOfPointerData__Tovoid = dart.constFn(dart_rti.findType("~(core|List<ui|PointerData>{buttons:core|int,change:ui|PointerChange,device:core|int,distance:core|double,distanceMax:core|double,kind:ui|PointerDeviceKind,obscured:core|bool,onRespond:~({allowPlatformDefault:core|bool})?,orientation:core|double,physicalX:core|double,physicalY:core|double,platformData:core|int,pressure:core|double,pressureMax:core|double,pressureMin:core|double,radiusMajor:core|double,radiusMax:core|double,radiusMin:core|double,radiusMinor:core|double,scale:core|double,scrollDeltaX:core|double,scrollDeltaY:core|double,signalKind:ui|PointerSignalKind?,size:core|double,tilt:core|double,timeStamp:core|Duration,viewId!core|int})")))(),
    _GlobalPointerState: () => (T$11._GlobalPointerState = dart.constFn(dart_rti.findType("_engine|_GlobalPointerState")))(),
    StringAnddoubleToNvoid: () => (T$11.StringAnddoubleToNvoid = dart.constFn(dart_rti.findType("~(core|String,core|double)?")))(),
    VoidToProfiler: () => (T$11.VoidToProfiler = dart.constFn(dart_rti.findType("_engine|Profiler()")))(),
    Profiler: () => (T$11.Profiler = dart.constFn(dart_rti.findType("_engine|Profiler")))(),
    StringAnddoubleTovoid: () => (T$11.StringAnddoubleTovoid = dart.constFn(dart_rti.findType("~(core|String,core|double)")))(),
    ProfilerN: () => (T$11.ProfilerN = dart.constFn(dart_rti.findType("_engine|Profiler?")))(),
    MapEntryOfString$intAndMapEntryOfString$intToint: () => (T$11.MapEntryOfString$intAndMapEntryOfString$intToint = dart.constFn(dart_rti.findType("core|int(core|MapEntry<core|String,core|int>,core|MapEntry<core|String,core|int>)")))(),
    Instrumentation: () => (T$11.Instrumentation = dart.constFn(dart_rti.findType("_engine|Instrumentation")))(),
    __Tovoid$19: () => (T$11.__Tovoid$19 = dart.constFn(dart_rti.findType("~({onMacOs:core|bool})")))(),
    RawKeyboardN: () => (T$11.RawKeyboardN = dart.constFn(dart_rti.findType("_engine|RawKeyboard?")))(),
    FlutterHtmlKeyboardEventTobool: () => (T$11.FlutterHtmlKeyboardEventTobool = dart.constFn(dart_rti.findType("core|bool(_engine|FlutterHtmlKeyboardEvent)")))(),
    MapOfString$Timer: () => (T$11.MapOfString$Timer = dart.constFn(dart_rti.findType("core|Map<core|String,async|Timer>")))(),
    JSONMessageCodec: () => (T$11.JSONMessageCodec = dart.constFn(dart_rti.findType("_engine|JSONMessageCodec")))(),
    VoidToRenderer: () => (T$11.VoidToRenderer = dart.constFn(dart_rti.findType("_engine|Renderer()")))(),
    RRect__Tovoid$1: () => (T$11.RRect__Tovoid$1 = dart.constFn(dart_rti.findType("~(ui|RRect{reverse:core|bool,startNewPath:core|bool})")))(),
    doubleAnddoubleAnddouble__Tovoid$8: () => (T$11.doubleAnddoubleAnddouble__Tovoid$8 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|bool)")))(),
    doubleAnddoubleAnddouble__ToNvoid: () => (T$11.doubleAnddoubleAnddouble__ToNvoid = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|bool)?")))(),
    doubleAnddoubleToNvoid: () => (T$11.doubleAnddoubleToNvoid = dart.constFn(dart_rti.findType("~(core|double,core|double)?")))(),
    GlProgramN: () => (T$11.GlProgramN = dart.constFn(dart_rti.findType("_engine|GlProgram?")))(),
    OffScreenCanvasToGlContext: () => (T$11.OffScreenCanvasToGlContext = dart.constFn(dart_rti.findType("_engine|GlContext(_engine|OffScreenCanvas)")))(),
    MapOfString$GlProgramN: () => (T$11.MapOfString$GlProgramN = dart.constFn(dart_rti.findType("core|Map<core|String,_engine|GlProgram?>")))(),
    DomCanvasRenderingContext2DAnddoubleAnddoubleTovoid: () => (T$11.DomCanvasRenderingContext2DAnddoubleAnddoubleTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|double,core|double)")))(),
    StringAndStringToGlProgram: () => (T$11.StringAndStringToGlProgram = dart.constFn(dart_rti.findType("_engine|GlProgram(core|String,core|String)")))(),
    StringAndStringToObject: () => (T$11.StringAndStringToObject = dart.constFn(dart_rti.findType("core|Object(core|String,core|String)")))(),
    ObjectNAndObjectTovoid: () => (T$11.ObjectNAndObjectTovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|Object)")))(),
    GlProgramTovoid: () => (T$11.GlProgramTovoid = dart.constFn(dart_rti.findType("~(_engine|GlProgram)")))(),
    dynamicAndObjectNTovoid: () => (T$11.dynamicAndObjectNTovoid = dart.constFn(dart_rti.findType("~(@,core|Object?)")))(),
    dynamicAndintAnddynamic__Tovoid: () => (T$11.dynamicAndintAnddynamic__Tovoid = dart.constFn(dart_rti.findType("~(@,core|int,@,@,@,@{border:core|int,height:core|int?,width:core|int?})")))(),
    TypedDataNAnddynamicTovoid: () => (T$11.TypedDataNAnddynamicTovoid = dart.constFn(dart_rti.findType("~(typed_data|TypedData?,@)")))(),
    intAndVertexModeTovoid: () => (T$11.intAndVertexModeTovoid = dart.constFn(dart_rti.findType("~(core|int,ui|VertexMode)")))(),
    dynamicAndintAnddynamicTovoid: () => (T$11.dynamicAndintAnddynamicTovoid = dart.constFn(dart_rti.findType("~(@,core|int,@)")))(),
    VertexModeToObject: () => (T$11.VertexModeToObject = dart.constFn(dart_rti.findType("core|Object(ui|VertexMode)")))(),
    ObjectAndStringToObject: () => (T$11.ObjectAndStringToObject = dart.constFn(dart_rti.findType("core|Object(core|Object,core|String)")))(),
    ObjectAndStringTobool: () => (T$11.ObjectAndStringTobool = dart.constFn(dart_rti.findType("core|bool(core|Object,core|String)")))(),
    ObjectAnddoubleTovoid: () => (T$11.ObjectAnddoubleTovoid = dart.constFn(dart_rti.findType("~(core|Object,core|double)")))(),
    ObjectAnddoubleAnddoubleTovoid: () => (T$11.ObjectAnddoubleAnddoubleTovoid = dart.constFn(dart_rti.findType("~(core|Object,core|double,core|double)")))(),
    ObjectAnddoubleAnddouble__Tovoid: () => (T$11.ObjectAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(core|Object,core|double,core|double,core|double,core|double)")))(),
    ObjectAndboolAndFloat32ListTovoid: () => (T$11.ObjectAndboolAndFloat32ListTovoid = dart.constFn(dart_rti.findType("~(core|Object,core|bool,typed_data|Float32List)")))(),
    ObjectToObjectN: () => (T$11.ObjectToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|Object)")))(),
    VoidToDomImageData: () => (T$11.VoidToDomImageData = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    boolToObjectN: () => (T$11.boolToObjectN = dart.constFn(dart_rti.findType("core|Object?(core|bool)")))(),
    MapNOfString$GlProgramN: () => (T$11.MapNOfString$GlProgramN = dart.constFn(dart_rti.findType("core|Map<core|String,_engine|GlProgram?>?")))(),
    intAndintToGlContextN: () => (T$11.intAndintToGlContextN = dart.constFn(dart_rti.findType("_engine|GlContext?(core|int,core|int)")))(),
    GlContextN: () => (T$11.GlContextN = dart.constFn(dart_rti.findType("_engine|GlContext?")))(),
    DomBlobToNull: () => (T$11.DomBlobToNull = dart.constFn(dart_rti.findType("core|Null(_interceptors|JavaScriptObject)")))(),
    DomCanvasElementTovoid: () => (T$11.DomCanvasElementTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject)")))(),
    VoidToDomCanvasRenderingContextBitmapRendererN: () => (T$11.VoidToDomCanvasRenderingContextBitmapRendererN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?()")))(),
    ObjectAndintAndint__Tovoid: () => (T$11.ObjectAndintAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|Object,core|int,core|int,core|int,core|int)")))(),
    EngineRootLayer: () => (T$11.EngineRootLayer = dart.constFn(dart_rti.findType("_engine|EngineRootLayer")))(),
    BackdropFilterLayer: () => (T$11.BackdropFilterLayer = dart.constFn(dart_rti.findType("_engine|BackdropFilterLayer")))(),
    ClipPathLayer: () => (T$11.ClipPathLayer = dart.constFn(dart_rti.findType("_engine|ClipPathLayer")))(),
    ClipRRectLayer: () => (T$11.ClipRRectLayer = dart.constFn(dart_rti.findType("_engine|ClipRRectLayer")))(),
    ClipRectLayer: () => (T$11.ClipRectLayer = dart.constFn(dart_rti.findType("_engine|ClipRectLayer")))(),
    ColorFilterLayer: () => (T$11.ColorFilterLayer = dart.constFn(dart_rti.findType("_engine|ColorFilterLayer")))(),
    ImageFilterLayer: () => (T$11.ImageFilterLayer = dart.constFn(dart_rti.findType("_engine|ImageFilterLayer")))(),
    OffsetLayer: () => (T$11.OffsetLayer = dart.constFn(dart_rti.findType("_engine|OffsetLayer")))(),
    OpacityLayer: () => (T$11.OpacityLayer = dart.constFn(dart_rti.findType("_engine|OpacityLayer")))(),
    ShaderMaskLayer: () => (T$11.ShaderMaskLayer = dart.constFn(dart_rti.findType("_engine|ShaderMaskLayer")))(),
    TransformLayer: () => (T$11.TransformLayer = dart.constFn(dart_rti.findType("_engine|TransformLayer")))(),
    RRect__ToClipRRectEngineLayer$2: () => (T$11.RRect__ToClipRRectEngineLayer$2 = dart.constFn(dart_rti.findType("ui|ClipRRectEngineLayer(ui|RRect{clipBehavior!ui|Clip,oldLayer:ui|ClipRRectEngineLayer?})")))(),
    VoidToScene: () => (T$11.VoidToScene = dart.constFn(dart_rti.findType("ui|Scene()")))(),
    TAndLayerOperationToT: () => (T$11.TAndLayerOperationToT = dart.constFn(dart_rti.findType("0^(0^,_engine|LayerOperation)<_engine|PictureEngineLayer>")))(),
    LayerBuilder: () => (T$11.LayerBuilder = dart.constFn(dart_rti.findType("_engine|LayerBuilder")))(),
    EngineScene: () => (T$11.EngineScene = dart.constFn(dart_rti.findType("_engine|EngineScene")))(),
    CompleterOfvoid: () => (T$11.CompleterOfvoid = dart.constFn(dart_rti.findType("async|Completer<~>")))(),
    SliceContainer: () => (T$11.SliceContainer = dart.constFn(dart_rti.findType("_engine|SliceContainer")))(),
    FutureOfRecOf__: () => (T$11.FutureOfRecOf__ = dart.constFn(dart_rti.findType("async|Future<+imageBitmaps,rasterEndMicros,rasterStartMicros(core|List<_interceptors|JavaScriptObject>,core|int,core|int)>")))(),
    SliceContainerN: () => (T$11.SliceContainerN = dart.constFn(dart_rti.findType("_engine|SliceContainer?")))(),
    PictureSliceContainer: () => (T$11.PictureSliceContainer = dart.constFn(dart_rti.findType("_engine|PictureSliceContainer")))(),
    PlatformViewContainer: () => (T$11.PlatformViewContainer = dart.constFn(dart_rti.findType("_engine|PlatformViewContainer")))(),
    PictureRendererAndFlutterViewToEngineSceneView: () => (T$11.PictureRendererAndFlutterViewToEngineSceneView = dart.constFn(dart_rti.findType("_engine|EngineSceneView(_engine|PictureRenderer,ui|FlutterView)")))(),
    EngineSceneAndFrameTimingRecorderNToFutureOfvoid: () => (T$11.EngineSceneAndFrameTimingRecorderNToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(_engine|EngineScene,_engine|FrameTimingRecorder?)")))(),
    PictureRenderer: () => (T$11.PictureRenderer = dart.constFn(dart_rti.findType("_engine|PictureRenderer")))()
  };
  var T$12 = {
    ListOfSliceContainer: () => (T$12.ListOfSliceContainer = dart.constFn(dart_rti.findType("core|List<_engine|SliceContainer>")))(),
    _SceneRenderN: () => (T$12._SceneRenderN = dart.constFn(dart_rti.findType("_engine|_SceneRender?")))(),
    RectToPictureSliceContainer: () => (T$12.RectToPictureSliceContainer = dart.constFn(dart_rti.findType("_engine|PictureSliceContainer(ui|Rect)")))(),
    ListOfAssertiveness: () => (T$12.ListOfAssertiveness = dart.constFn(dart_rti.findType("core|List<_engine|Assertiveness>")))(),
    Assertiveness: () => (T$12.Assertiveness = dart.constFn(dart_rti.findType("_engine|Assertiveness")))(),
    AssertivenessL: () => (T$12.AssertivenessL = dart.constFn(dart_rti.findType("_engine|Assertiveness*")))(),
    __ToAccessibilityAnnouncements: () => (T$12.__ToAccessibilityAnnouncements = dart.constFn(dart_rti.findType("_engine|AccessibilityAnnouncements({hostElement!_interceptors|JavaScriptObject})")))(),
    AssertivenessToDomHTMLElement: () => (T$12.AssertivenessToDomHTMLElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_engine|Assertiveness)")))(),
    StandardMessageCodecAndByteDataNTovoid: () => (T$12.StandardMessageCodecAndByteDataNTovoid = dart.constFn(dart_rti.findType("~(_engine|StandardMessageCodec,typed_data|ByteData?)")))(),
    StringAndAssertivenessTovoid: () => (T$12.StringAndAssertivenessTovoid = dart.constFn(dart_rti.findType("~(core|String,_engine|Assertiveness)")))(),
    ListOf_CheckableKind: () => (T$12.ListOf_CheckableKind = dart.constFn(dart_rti.findType("core|List<_engine|_CheckableKind>")))(),
    _CheckableKind: () => (T$12._CheckableKind = dart.constFn(dart_rti.findType("_engine|_CheckableKind")))(),
    _CheckableKindL: () => (T$12._CheckableKindL = dart.constFn(dart_rti.findType("_engine|_CheckableKind*")))(),
    Role: () => (T$12.Role = dart.constFn(dart_rti.findType("_engine|Role")))(),
    RoleManagerToRole: () => (T$12.RoleManagerToRole = dart.constFn(dart_rti.findType("_engine|Role(_engine|RoleManager)")))(),
    RoleL: () => (T$12.RoleL = dart.constFn(dart_rti.findType("_engine|Role*")))(),
    RoleManagerTobool: () => (T$12.RoleManagerTobool = dart.constFn(dart_rti.findType("core|bool(_engine|RoleManager)")))(),
    RoleManager: () => (T$12.RoleManager = dart.constFn(dart_rti.findType("_engine|RoleManager")))(),
    ListNOfRoleManager: () => (T$12.ListNOfRoleManager = dart.constFn(dart_rti.findType("core|List<_engine|RoleManager>?")))(),
    ListOfRole: () => (T$12.ListOfRole = dart.constFn(dart_rti.findType("core|List<_engine|Role>")))(),
    DomElementAndSemanticsObjectToDomElement: () => (T$12.DomElementAndSemanticsObjectToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_interceptors|JavaScriptObject,_engine|SemanticsObject)")))(),
    StringAndDomEventListenerNAndboolNTovoid: () => (T$12.StringAndDomEventListenerNAndboolNTovoid = dart.constFn(dart_rti.findType("~(core|String,_interceptors|JavaScriptObject?[core|bool?])")))(),
    FocusableN: () => (T$12.FocusableN = dart.constFn(dart_rti.findType("_engine|Focusable?")))(),
    LabelAndValueN: () => (T$12.LabelAndValueN = dart.constFn(dart_rti.findType("_engine|LabelAndValue?")))(),
    __Tovoid$20: () => (T$12.__Tovoid$20 = dart.constFn(dart_rti.findType("~({preferredRepresentation!_engine|LabelRepresentation})")))(),
    RoleManagerTovoid: () => (T$12.RoleManagerTovoid = dart.constFn(dart_rti.findType("~(_engine|RoleManager)")))(),
    PrimaryRole: () => (T$12.PrimaryRole = dart.constFn(dart_rti.findType("_engine|PrimaryRole")))(),
    SemanticsObject: () => (T$12.SemanticsObject = dart.constFn(dart_rti.findType("_engine|SemanticsObject")))(),
    SemanticsObjectTobool: () => (T$12.SemanticsObjectTobool = dart.constFn(dart_rti.findType("core|bool(_engine|SemanticsObject)")))(),
    RouteNameTovoid: () => (T$12.RouteNameTovoid = dart.constFn(dart_rti.findType("~(_engine|RouteName)")))(),
    Dialog: () => (T$12.Dialog = dart.constFn(dart_rti.findType("_engine|Dialog")))(),
    PrimaryRoleManager: () => (T$12.PrimaryRoleManager = dart.constFn(dart_rti.findType("_engine|PrimaryRoleManager")))(),
    DialogN: () => (T$12.DialogN = dart.constFn(dart_rti.findType("_engine|Dialog?")))(),
    AccessibilityFocusManager: () => (T$12.AccessibilityFocusManager = dart.constFn(dart_rti.findType("_engine|AccessibilityFocusManager")))(),
    intAndDomElementTovoid: () => (T$12.intAndDomElementTovoid = dart.constFn(dart_rti.findType("~(core|int,_interceptors|JavaScriptObject)")))(),
    EngineSemanticsOwner: () => (T$12.EngineSemanticsOwner = dart.constFn(dart_rti.findType("_engine|EngineSemanticsOwner")))(),
    RecNOf__$2: () => (T$12.RecNOf__$2 = dart.constFn(dart_rti.findType("+domBlurListener,domFocusListener,element,semanticsNodeId(_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,core|int)?")))(),
    GestureModeTovoid: () => (T$12.GestureModeTovoid = dart.constFn(dart_rti.findType("~(_engine|GestureMode)")))(),
    DomHTMLInputElement: () => (T$12.DomHTMLInputElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    GestureModeToNvoid: () => (T$12.GestureModeToNvoid = dart.constFn(dart_rti.findType("~(_engine|GestureMode)?")))(),
    PrimaryRoleManagerToLabelRepresentationBehavior: () => (T$12.PrimaryRoleManagerToLabelRepresentationBehavior = dart.constFn(dart_rti.findType("_engine|LabelRepresentationBehavior(_engine|PrimaryRoleManager)")))(),
    ListOfLabelRepresentation: () => (T$12.ListOfLabelRepresentation = dart.constFn(dart_rti.findType("core|List<_engine|LabelRepresentation>")))(),
    LabelRepresentation: () => (T$12.LabelRepresentation = dart.constFn(dart_rti.findType("_engine|LabelRepresentation")))(),
    LabelRepresentationL: () => (T$12.LabelRepresentationL = dart.constFn(dart_rti.findType("_engine|LabelRepresentation*")))(),
    DomTextN: () => (T$12.DomTextN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    RecOf__$1: () => (T$12.RecOf__$1 = dart.constFn(dart_rti.findType("+representation,targetSize(_engine|SizedSpanRepresentation,ui|Size)")))(),
    RecOf__$2: () => (T$12.RecOf__$2 = dart.constFn(dart_rti.findType("+domSize,representation,targetSize(ui|Size,_engine|SizedSpanRepresentation,ui|Size)")))(),
    SizeNTovoid: () => (T$12.SizeNTovoid = dart.constFn(dart_rti.findType("~(ui|Size?)")))(),
    SizeN: () => (T$12.SizeN = dart.constFn(dart_rti.findType("ui|Size?")))(),
    ListNOfRecOf__: () => (T$12.ListNOfRecOf__ = dart.constFn(dart_rti.findType("core|List<+representation,targetSize(_engine|SizedSpanRepresentation,ui|Size)>?")))(),
    VoidToLabelRepresentationBehavior: () => (T$12.VoidToLabelRepresentationBehavior = dart.constFn(dart_rti.findType("_engine|LabelRepresentationBehavior()")))(),
    LabelRepresentationBehaviorN: () => (T$12.LabelRepresentationBehaviorN = dart.constFn(dart_rti.findType("_engine|LabelRepresentationBehavior?")))(),
    AccessibilityAnnouncementsNTovoid: () => (T$12.AccessibilityAnnouncementsNTovoid = dart.constFn(dart_rti.findType("~(_engine|AccessibilityAnnouncements?)")))(),
    AccessibilityAnnouncements: () => (T$12.AccessibilityAnnouncements = dart.constFn(dart_rti.findType("_engine|AccessibilityAnnouncements")))(),
    AccessibilityAnnouncementsN: () => (T$12.AccessibilityAnnouncementsN = dart.constFn(dart_rti.findType("_engine|AccessibilityAnnouncements?")))(),
    __ToEngineAccessibilityFeatures: () => (T$12.__ToEngineAccessibilityFeatures = dart.constFn(dart_rti.findType("_engine|EngineAccessibilityFeatures({accessibleNavigation:core|bool?,boldText:core|bool?,disableAnimations:core|bool?,highContrast:core|bool?,invertColors:core|bool?,onOffSwitchLabels:core|bool?,reduceMotion:core|bool?})")))(),
    ListNOfSemanticsNodeUpdate: () => (T$12.ListNOfSemanticsNodeUpdate = dart.constFn(dart_rti.findType("core|List<_engine|SemanticsNodeUpdate>?")))(),
    ListOfStringAttribute: () => (T$12.ListOfStringAttribute = dart.constFn(dart_rti.findType("core|List<ui|StringAttribute>")))(),
    ListOfPrimaryRole: () => (T$12.ListOfPrimaryRole = dart.constFn(dart_rti.findType("core|List<_engine|PrimaryRole>")))(),
    PrimaryRoleL: () => (T$12.PrimaryRoleL = dart.constFn(dart_rti.findType("_engine|PrimaryRole*")))(),
    SemanticsObjectTovoid: () => (T$12.SemanticsObjectTovoid = dart.constFn(dart_rti.findType("~(_engine|SemanticsObject)")))(),
    ListNOfStringAttribute: () => (T$12.ListNOfStringAttribute = dart.constFn(dart_rti.findType("core|List<ui|StringAttribute>?")))(),
    VoidToDomElementN: () => (T$12.VoidToDomElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?()")))(),
    SemanticsObjectN: () => (T$12.SemanticsObjectN = dart.constFn(dart_rti.findType("_engine|SemanticsObject?")))(),
    SemanticsFlagTobool: () => (T$12.SemanticsFlagTobool = dart.constFn(dart_rti.findType("core|bool(ui|SemanticsFlag)")))(),
    SemanticsActionTobool: () => (T$12.SemanticsActionTobool = dart.constFn(dart_rti.findType("core|bool(ui|SemanticsAction)")))(),
    VoidToEnabledState: () => (T$12.VoidToEnabledState = dart.constFn(dart_rti.findType("_engine|EnabledState()")))(),
    SemanticsNodeUpdateTovoid: () => (T$12.SemanticsNodeUpdateTovoid = dart.constFn(dart_rti.findType("~(_engine|SemanticsNodeUpdate)")))(),
    VoidToPrimaryRole: () => (T$12.VoidToPrimaryRole = dart.constFn(dart_rti.findType("_engine|PrimaryRole()")))(),
    PrimaryRoleToPrimaryRoleManager: () => (T$12.PrimaryRoleToPrimaryRoleManager = dart.constFn(dart_rti.findType("_engine|PrimaryRoleManager(_engine|PrimaryRole)")))(),
    FnTovoid$45: () => (T$12.FnTovoid$45 = dart.constFn(dart_rti.findType("~(~(_engine|SemanticsObject))")))(),
    FnTovoid$46: () => (T$12.FnTovoid$46 = dart.constFn(dart_rti.findType("~(core|bool(_engine|SemanticsObject))")))(),
    FnTobool$4: () => (T$12.FnTobool$4 = dart.constFn(dart_rti.findType("core|bool(core|bool(_engine|SemanticsObject))")))(),
    ListNOfSemanticsObject: () => (T$12.ListNOfSemanticsObject = dart.constFn(dart_rti.findType("core|List<_engine|SemanticsObject>?")))(),
    PrimaryRoleManagerN: () => (T$12.PrimaryRoleManagerN = dart.constFn(dart_rti.findType("_engine|PrimaryRoleManager?")))(),
    ListOfAccessibilityMode: () => (T$12.ListOfAccessibilityMode = dart.constFn(dart_rti.findType("core|List<_engine|AccessibilityMode>")))(),
    AccessibilityMode: () => (T$12.AccessibilityMode = dart.constFn(dart_rti.findType("_engine|AccessibilityMode")))(),
    AccessibilityModeL: () => (T$12.AccessibilityModeL = dart.constFn(dart_rti.findType("_engine|AccessibilityMode*")))(),
    ListOfGestureMode: () => (T$12.ListOfGestureMode = dart.constFn(dart_rti.findType("core|List<_engine|GestureMode>")))(),
    GestureMode: () => (T$12.GestureMode = dart.constFn(dart_rti.findType("_engine|GestureMode")))(),
    GestureModeL: () => (T$12.GestureModeL = dart.constFn(dart_rti.findType("_engine|GestureMode*")))(),
    ListOfSemanticsUpdatePhase: () => (T$12.ListOfSemanticsUpdatePhase = dart.constFn(dart_rti.findType("core|List<_engine|SemanticsUpdatePhase>")))(),
    SemanticsUpdatePhase: () => (T$12.SemanticsUpdatePhase = dart.constFn(dart_rti.findType("_engine|SemanticsUpdatePhase")))(),
    SemanticsUpdatePhaseL: () => (T$12.SemanticsUpdatePhaseL = dart.constFn(dart_rti.findType("_engine|SemanticsUpdatePhase*")))(),
    EngineSemantics: () => (T$12.EngineSemantics = dart.constFn(dart_rti.findType("_engine|EngineSemantics")))(),
    FnTovoid$47: () => (T$12.FnTovoid$47 = dart.constFn(dart_rti.findType("~(core|DateTime())")))(),
    VoidToAlarmClockN: () => (T$12.VoidToAlarmClockN = dart.constFn(dart_rti.findType("_engine|AlarmClock?()")))(),
    FnTovoid$48: () => (T$12.FnTovoid$48 = dart.constFn(dart_rti.findType("~(~(_engine|GestureMode))")))(),
    EngineSemanticsN: () => (T$12.EngineSemanticsN = dart.constFn(dart_rti.findType("_engine|EngineSemantics?")))(),
    SemanticsHelper: () => (T$12.SemanticsHelper = dart.constFn(dart_rti.findType("_engine|SemanticsHelper")))(),
    AlarmClockN: () => (T$12.AlarmClockN = dart.constFn(dart_rti.findType("_engine|AlarmClock?")))(),
    ListOfGestureModeTovoid: () => (T$12.ListOfGestureModeTovoid = dart.constFn(dart_rti.findType("core|List<~(_engine|GestureMode)>")))(),
    SemanticsUpdate: () => (T$12.SemanticsUpdate = dart.constFn(dart_rti.findType("_engine|SemanticsUpdate")))(),
    intNAndSemanticsObjectTovoid: () => (T$12.intNAndSemanticsObjectTovoid = dart.constFn(dart_rti.findType("~(core|int?,_engine|SemanticsObject)")))(),
    __Tovoid$21: () => (T$12.__Tovoid$21 = dart.constFn(dart_rti.findType("~({child!_engine|SemanticsObject,parent!_engine|SemanticsObject})")))(),
    MapNOfint$SemanticsObject: () => (T$12.MapNOfint$SemanticsObject = dart.constFn(dart_rti.findType("core|Map<core|int,_engine|SemanticsObject>?")))(),
    intToSemanticsObject: () => (T$12.intToSemanticsObject = dart.constFn(dart_rti.findType("_engine|SemanticsObject(core|int)")))(),
    VoidToRec: () => (T$12.VoidToRec = dart.constFn(dart_rti.findType("+(core|bool,core|String)()")))(),
    MapOfint$SemanticsObject: () => (T$12.MapOfint$SemanticsObject = dart.constFn(dart_rti.findType("core|Map<core|int,_engine|SemanticsObject>")))(),
    ListOfSemanticsObject: () => (T$12.ListOfSemanticsObject = dart.constFn(dart_rti.findType("core|List<_engine|SemanticsObject>")))(),
    ListOfVoidTovoid: () => (T$12.ListOfVoidTovoid = dart.constFn(dart_rti.findType("core|List<~()>")))(),
    ListOfEnabledState: () => (T$12.ListOfEnabledState = dart.constFn(dart_rti.findType("core|List<_engine|EnabledState>")))(),
    EnabledState: () => (T$12.EnabledState = dart.constFn(dart_rti.findType("_engine|EnabledState")))(),
    EnabledStateL: () => (T$12.EnabledStateL = dart.constFn(dart_rti.findType("_engine|EnabledState*")))(),
    SemanticsEnabler: () => (T$12.SemanticsEnabler = dart.constFn(dart_rti.findType("_engine|SemanticsEnabler")))(),
    DomMouseEvent: () => (T$12.DomMouseEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomTouchEvent: () => (T$12.DomTouchEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomRect: () => (T$12.DomRect = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomSubscription: () => (T$12.DomSubscription = dart.constFn(dart_rti.findType("_engine|DomSubscription")))(),
    SafariDesktopTextEditingStrategy: () => (T$12.SafariDesktopTextEditingStrategy = dart.constFn(dart_rti.findType("_engine|SafariDesktopTextEditingStrategy")))(),
    MultilineInputType: () => (T$12.MultilineInputType = dart.constFn(dart_rti.findType("_engine|MultilineInputType")))(),
    DomCompositionEvent: () => (T$12.DomCompositionEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    EditingStateToEditingState: () => (T$12.EditingStateToEditingState = dart.constFn(dart_rti.findType("_engine|EditingState(_engine|EditingState)")))(),
    DomElementToEngineFlutterViewN: () => (T$12.DomElementToEngineFlutterViewN = dart.constFn(dart_rti.findType("_engine|EngineFlutterView?(_interceptors|JavaScriptObject)")))(),
    InputConfiguration: () => (T$12.InputConfiguration = dart.constFn(dart_rti.findType("_engine|InputConfiguration")))(),
    TextEditingDeltaState: () => (T$12.TextEditingDeltaState = dart.constFn(dart_rti.findType("_engine|TextEditingDeltaState")))(),
    DomHTMLFormElementN: () => (T$12.DomHTMLFormElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    InputConfiguration__Tovoid: () => (T$12.InputConfiguration__Tovoid = dart.constFn(dart_rti.findType("~(_engine|InputConfiguration{onAction!~(core|String?),onChange!~(_engine|EditingState?,_engine|TextEditingDeltaState?)})")))(),
    InputConfigurationTovoid: () => (T$12.InputConfigurationTovoid = dart.constFn(dart_rti.findType("~(_engine|InputConfiguration)")))(),
    EditableTextGeometryTovoid: () => (T$12.EditableTextGeometryTovoid = dart.constFn(dart_rti.findType("~(_engine|EditableTextGeometry)")))(),
    EditableTextStyleTovoid: () => (T$12.EditableTextStyleTovoid = dart.constFn(dart_rti.findType("~(_engine|EditableTextStyle)")))(),
    EditingStateNTovoid: () => (T$12.EditingStateNTovoid = dart.constFn(dart_rti.findType("~(_engine|EditingState?)")))(),
    DomElementAndEngineFlutterViewN__Tovoid: () => (T$12.DomElementAndEngineFlutterViewN__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,_engine|EngineFlutterView?{removeElement:core|bool})")))(),
    HybridTextEditing: () => (T$12.HybridTextEditing = dart.constFn(dart_rti.findType("_engine|HybridTextEditing")))(),
    InputConfigurationN: () => (T$12.InputConfigurationN = dart.constFn(dart_rti.findType("_engine|InputConfiguration?")))(),
    EditingStateN: () => (T$12.EditingStateN = dart.constFn(dart_rti.findType("_engine|EditingState?")))(),
    TextEditingDeltaStateN: () => (T$12.TextEditingDeltaStateN = dart.constFn(dart_rti.findType("_engine|TextEditingDeltaState?")))(),
    EditableTextStyleN: () => (T$12.EditableTextStyleN = dart.constFn(dart_rti.findType("_engine|EditableTextStyle?")))(),
    EditableTextGeometryN: () => (T$12.EditableTextGeometryN = dart.constFn(dart_rti.findType("_engine|EditableTextGeometry?")))(),
    EditingStateNAndTextEditingDeltaStateNToNvoid: () => (T$12.EditingStateNAndTextEditingDeltaStateNToNvoid = dart.constFn(dart_rti.findType("~(_engine|EditingState?,_engine|TextEditingDeltaState?)?")))(),
    StringNToNvoid: () => (T$12.StringNToNvoid = dart.constFn(dart_rti.findType("~(core|String?)?")))(),
    ListOfDomSubscription: () => (T$12.ListOfDomSubscription = dart.constFn(dart_rti.findType("core|List<_engine|DomSubscription>")))(),
    HybridTextEditingToSemanticsTextEditingStrategy: () => (T$12.HybridTextEditingToSemanticsTextEditingStrategy = dart.constFn(dart_rti.findType("_engine|SemanticsTextEditingStrategy(_engine|HybridTextEditing)")))(),
    SemanticsTextEditingStrategy: () => (T$12.SemanticsTextEditingStrategy = dart.constFn(dart_rti.findType("_engine|SemanticsTextEditingStrategy")))(),
    TextFieldTovoid: () => (T$12.TextFieldTovoid = dart.constFn(dart_rti.findType("~(_engine|TextField)")))(),
    InputConfiguration__Tovoid$1: () => (T$12.InputConfiguration__Tovoid$1 = dart.constFn(dart_rti.findType("~(_engine|InputConfiguration{onAction:~(core|String?)?,onChange:~(_engine|EditingState?,_engine|TextEditingDeltaState?)?})")))(),
    SemanticsTextEditingStrategyN: () => (T$12.SemanticsTextEditingStrategyN = dart.constFn(dart_rti.findType("_engine|SemanticsTextEditingStrategy?")))(),
    TextFieldN: () => (T$12.TextFieldN = dart.constFn(dart_rti.findType("_engine|TextField?")))(),
    ObjectNAndintAndintNTovoid: () => (T$12.ObjectNAndintAndintNTovoid = dart.constFn(dart_rti.findType("~(core|Object?[core|int,core|int?])")))(),
    intAndObjectNAndint__Tovoid: () => (T$12.intAndObjectNAndint__Tovoid = dart.constFn(dart_rti.findType("~(core|int,core|Object?[core|int,core|int?])")))(),
    ListOfObjectNAndintAndintTovoid: () => (T$12.ListOfObjectNAndintAndintTovoid = dart.constFn(dart_rti.findType("~(core|List<core|Object?>,core|int,core|int)")))(),
    _IntBuffer: () => (T$12._IntBuffer = dart.constFn(dart_rti.findType("_engine|_IntBuffer")))(),
    Uint8Buffer: () => (T$12.Uint8Buffer = dart.constFn(dart_rti.findType("_engine|Uint8Buffer")))(),
    ByteDataToByteData: () => (T$12.ByteDataToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData(typed_data|ByteData)")))(),
    ObjectNToByteData: () => (T$12.ObjectNToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData(core|Object?)")))(),
    ByteDataToString: () => (T$12.ByteDataToString = dart.constFn(dart_rti.findType("core|String(typed_data|ByteData)")))(),
    ObjectNToByteDataN: () => (T$12.ObjectNToByteDataN = dart.constFn(dart_rti.findType("typed_data|ByteData?(core|Object?)")))(),
    ByteDataNTodynamic: () => (T$12.ByteDataNTodynamic = dart.constFn(dart_rti.findType("@(typed_data|ByteData?)")))(),
    MethodCallToByteDataN: () => (T$12.MethodCallToByteDataN = dart.constFn(dart_rti.findType("typed_data|ByteData?(_engine|MethodCall)")))(),
    ByteDataNToMethodCall: () => (T$12.ByteDataNToMethodCall = dart.constFn(dart_rti.findType("_engine|MethodCall(typed_data|ByteData?)")))(),
    ByteDataTodynamic: () => (T$12.ByteDataTodynamic = dart.constFn(dart_rti.findType("@(typed_data|ByteData)")))(),
    dynamicToByteDataN: () => (T$12.dynamicToByteDataN = dart.constFn(dart_rti.findType("typed_data|ByteData?(@)")))(),
    __ToByteDataN$1: () => (T$12.__ToByteDataN$1 = dart.constFn(dart_rti.findType("typed_data|ByteData?({code!core|String,details:@,message:core|String?})")))(),
    WriteBufferAnddynamicTovoid: () => (T$12.WriteBufferAnddynamicTovoid = dart.constFn(dart_rti.findType("~(_engine|WriteBuffer,@)")))(),
    ReadBufferTodynamic: () => (T$12.ReadBufferTodynamic = dart.constFn(dart_rti.findType("@(_engine|ReadBuffer)")))(),
    intAndReadBufferTodynamic: () => (T$12.intAndReadBufferTodynamic = dart.constFn(dart_rti.findType("@(core|int,_engine|ReadBuffer)")))(),
    WriteBufferAndintTovoid: () => (T$12.WriteBufferAndintTovoid = dart.constFn(dart_rti.findType("~(_engine|WriteBuffer,core|int)")))(),
    ReadBufferToint: () => (T$12.ReadBufferToint = dart.constFn(dart_rti.findType("core|int(_engine|ReadBuffer)")))(),
    MethodCallToByteData: () => (T$12.MethodCallToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData(_engine|MethodCall)")))(),
    dynamicToByteData: () => (T$12.dynamicToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData(@)")))(),
    __ToByteData: () => (T$12.__ToByteData = dart.constFn(dart_rti.findType("typed_data|ByteData({code!core|String,details:@,message:core|String?})")))(),
    StandardMessageCodec: () => (T$12.StandardMessageCodec = dart.constFn(dart_rti.findType("_engine|StandardMessageCodec")))(),
    VoidToWriteBuffer: () => (T$12.VoidToWriteBuffer = dart.constFn(dart_rti.findType("_engine|WriteBuffer()")))(),
    Int32ListTovoid: () => (T$12.Int32ListTovoid = dart.constFn(dart_rti.findType("~(typed_data|Int32List)")))(),
    Int64ListTovoid: () => (T$12.Int64ListTovoid = dart.constFn(dart_rti.findType("~(typed_data|Int64List)")))(),
    UniformData: () => (T$12.UniformData = dart.constFn(dart_rti.findType("_engine|UniformData")))(),
    Uint8ListToShaderData: () => (T$12.Uint8ListToShaderData = dart.constFn(dart_rti.findType("_engine|ShaderData(typed_data|Uint8List)")))(),
    UniformType: () => (T$12.UniformType = dart.constFn(dart_rti.findType("_engine|UniformType")))(),
    ListOfUniformType: () => (T$12.ListOfUniformType = dart.constFn(dart_rti.findType("core|List<_engine|UniformType>")))(),
    UniformTypeL: () => (T$12.UniformTypeL = dart.constFn(dart_rti.findType("_engine|UniformType*")))(),
    TestHistoryEntry: () => (T$12.TestHistoryEntry = dart.constFn(dart_rti.findType("_engine|TestHistoryEntry")))(),
    voidTovoid: () => (T$12.voidTovoid = dart.constFn(dart_rti.findType("~(~)")))(),
    VoidToTestUrlStrategy: () => (T$12.VoidToTestUrlStrategy = dart.constFn(dart_rti.findType("_engine|TestUrlStrategy()")))(),
    dynamicAndStringAndStringTovoid: () => (T$12.dynamicAndStringAndStringTovoid = dart.constFn(dart_rti.findType("~(@,core|String,core|String)")))(),
    StringToFutureOfvoid: () => (T$12.StringToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(core|String)")))(),
    FnToFutureOfvoid$3: () => (T$12.FnToFutureOfvoid$3 = dart.constFn(dart_rti.findType("async|Future<~>(~())")))(),
    ListOfTestHistoryEntry: () => (T$12.ListOfTestHistoryEntry = dart.constFn(dart_rti.findType("core|List<_engine|TestHistoryEntry>")))(),
    ListOfObjectNTovoid$1: () => (T$12.ListOfObjectNTovoid$1 = dart.constFn(dart_rti.findType("core|List<~(core|Object?)>")))(),
    EngineLineMetrics: () => (T$12.EngineLineMetrics = dart.constFn(dart_rti.findType("_engine|EngineLineMetrics")))(),
    ParagraphLineToEngineLineMetrics: () => (T$12.ParagraphLineToEngineLineMetrics = dart.constFn(dart_rti.findType("_engine|EngineLineMetrics(_engine|ParagraphLine)")))(),
    ListOfParagraphLine: () => (T$12.ListOfParagraphLine = dart.constFn(dart_rti.findType("core|List<_engine|ParagraphLine>")))(),
    TextLayoutService: () => (T$12.TextLayoutService = dart.constFn(dart_rti.findType("_engine|TextLayoutService")))(),
    TextPaintService: () => (T$12.TextPaintService = dart.constFn(dart_rti.findType("_engine|TextPaintService")))(),
    BitmapCanvasAndOffsetTovoid: () => (T$12.BitmapCanvasAndOffsetTovoid = dart.constFn(dart_rti.findType("~(_engine|BitmapCanvas,ui|Offset)")))(),
    VoidToListOfEngineLineMetrics: () => (T$12.VoidToListOfEngineLineMetrics = dart.constFn(dart_rti.findType("core|List<_engine|EngineLineMetrics>()")))(),
    intToEngineLineMetricsN: () => (T$12.intToEngineLineMetricsN = dart.constFn(dart_rti.findType("_engine|EngineLineMetrics?(core|int)")))(),
    intAndintAndintTointN: () => (T$12.intAndintAndintTointN = dart.constFn(dart_rti.findType("core|int?(core|int,core|int,core|int)")))(),
    ListOfParagraphSpan: () => (T$12.ListOfParagraphSpan = dart.constFn(dart_rti.findType("core|List<_engine|ParagraphSpan>")))(),
    ParagraphConstraintsN: () => (T$12.ParagraphConstraintsN = dart.constFn(dart_rti.findType("ui|ParagraphConstraints?")))(),
    TextLayoutServiceN: () => (T$12.TextLayoutServiceN = dart.constFn(dart_rti.findType("_engine|TextLayoutService?")))(),
    TextPaintServiceN: () => (T$12.TextPaintServiceN = dart.constFn(dart_rti.findType("_engine|TextPaintService?")))(),
    EngineTextStyle: () => (T$12.EngineTextStyle = dart.constFn(dart_rti.findType("_engine|EngineTextStyle")))(),
    EngineTextStyleToChildStyleNode: () => (T$12.EngineTextStyleToChildStyleNode = dart.constFn(dart_rti.findType("_engine|ChildStyleNode(_engine|EngineTextStyle)")))(),
    VoidToEngineTextStyle: () => (T$12.VoidToEngineTextStyle = dart.constFn(dart_rti.findType("_engine|EngineTextStyle()")))(),
    EngineTextStyleN: () => (T$12.EngineTextStyleN = dart.constFn(dart_rti.findType("_engine|EngineTextStyle?")))(),
    PaintN: () => (T$12.PaintN = dart.constFn(dart_rti.findType("ui|Paint?")))(),
    StyleNode: () => (T$12.StyleNode = dart.constFn(dart_rti.findType("_engine|StyleNode")))(),
    ParagraphSpan: () => (T$12.ParagraphSpan = dart.constFn(dart_rti.findType("_engine|ParagraphSpan")))(),
    EngineTextStyleTovoid: () => (T$12.EngineTextStyleTovoid = dart.constFn(dart_rti.findType("~(_engine|EngineTextStyle)")))(),
    VoidToCanvasParagraph: () => (T$12.VoidToCanvasParagraph = dart.constFn(dart_rti.findType("_engine|CanvasParagraph()")))(),
    ListOfStyleNode: () => (T$12.ListOfStyleNode = dart.constFn(dart_rti.findType("core|List<_engine|StyleNode>")))(),
    RootStyleNode: () => (T$12.RootStyleNode = dart.constFn(dart_rti.findType("_engine|RootStyleNode")))(),
    FutureOfRecOfStringAndFontLoadErrorN: () => (T$12.FutureOfRecOfStringAndFontLoadErrorN = dart.constFn(dart_rti.findType("async|Future<+(core|String,_engine|FontLoadError?)>")))(),
    RecOfStringAndFontLoadErrorN: () => (T$12.RecOfStringAndFontLoadErrorN = dart.constFn(dart_rti.findType("+(core|String,_engine|FontLoadError?)")))(),
    VoidToFutureOfRecOfStringAndFontLoadErrorN: () => (T$12.VoidToFutureOfRecOfStringAndFontLoadErrorN = dart.constFn(dart_rti.findType("async|Future<+(core|String,_engine|FontLoadError?)>()")))(),
    DomFontFaceSetN: () => (T$12.DomFontFaceSetN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    DomFontFace: () => (T$12.DomFontFace = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringAndStringAndMapOfString$StringToFutureOfFontLoadErrorN: () => (T$12.StringAndStringAndMapOfString$StringToFutureOfFontLoadErrorN = dart.constFn(dart_rti.findType("async|Future<_engine|FontLoadError?>(core|String,core|String,core|Map<core|String,core|String>)")))(),
    StringAndStringAndMapOfString$StringToFutureOfDomFontFace: () => (T$12.StringAndStringAndMapOfString$StringToFutureOfDomFontFace = dart.constFn(dart_rti.findType("async|Future<_interceptors|JavaScriptObject>(core|String,core|String,core|Map<core|String,core|String>)")))(),
    StringAndUint8ListToFutureOfbool: () => (T$12.StringAndUint8ListToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(core|String,typed_data|Uint8List)")))(),
    LayoutFragment: () => (T$12.LayoutFragment = dart.constFn(dart_rti.findType("_engine|LayoutFragment")))(),
    VoidToListOfLayoutFragment: () => (T$12.VoidToListOfLayoutFragment = dart.constFn(dart_rti.findType("core|List<_engine|LayoutFragment>()")))(),
    LineBreakType: () => (T$12.LineBreakType = dart.constFn(dart_rti.findType("_engine|LineBreakType")))(),
    FragmentFlow: () => (T$12.FragmentFlow = dart.constFn(dart_rti.findType("_engine|FragmentFlow")))(),
    PlaceholderSpan: () => (T$12.PlaceholderSpan = dart.constFn(dart_rti.findType("_engine|PlaceholderSpan")))(),
    LayoutFragmentN: () => (T$12.LayoutFragmentN = dart.constFn(dart_rti.findType("_engine|LayoutFragment?")))(),
    Spanometer: () => (T$12.Spanometer = dart.constFn(dart_rti.findType("_engine|Spanometer")))(),
    Spanometer__Tovoid: () => (T$12.Spanometer__Tovoid = dart.constFn(dart_rti.findType("~(_engine|Spanometer{ascent!core|double,descent!core|double,widthExcludingTrailingSpaces!core|double,widthIncludingTrailingSpaces!core|double})")))(),
    SpanometerN: () => (T$12.SpanometerN = dart.constFn(dart_rti.findType("_engine|Spanometer?")))(),
    ParagraphLine: () => (T$12.ParagraphLine = dart.constFn(dart_rti.findType("_engine|ParagraphLine")))(),
    __Tovoid$22: () => (T$12.__Tovoid$22 = dart.constFn(dart_rti.findType("~({startOffset!core|double,textDirection!ui|TextDirection})")))(),
    __Tovoid$23: () => (T$12.__Tovoid$23 = dart.constFn(dart_rti.findType("~({paragraphWidth!core|double})")))(),
    ParagraphLineN: () => (T$12.ParagraphLineN = dart.constFn(dart_rti.findType("_engine|ParagraphLine?")))(),
    VoidToTextBox: () => (T$12.VoidToTextBox = dart.constFn(dart_rti.findType("ui|TextBox()")))(),
    __ToTextBox: () => (T$12.__ToTextBox = dart.constFn(dart_rti.findType("ui|TextBox({end:core|int?,start:core|int?})")))(),
    intAndintToTextBox: () => (T$12.intAndintToTextBox = dart.constFn(dart_rti.findType("ui|TextBox(core|int,core|int)")))(),
    doubleToTextPosition: () => (T$12.doubleToTextPosition = dart.constFn(dart_rti.findType("ui|TextPosition(core|double)")))(),
    RecNOfintAndint: () => (T$12.RecNOfintAndint = dart.constFn(dart_rti.findType("+(core|int,core|int)?")))(),
    VoidToRec$1: () => (T$12.VoidToRec$1 = dart.constFn(dart_rti.findType("+(core|int,core|int)?()")))(),
    doubleAndintAndintToGlyphInfo: () => (T$12.doubleAndintAndintToGlyphInfo = dart.constFn(dart_rti.findType("ui|GlyphInfo(core|double,core|int,core|int)")))(),
    doubleToGlyphInfo: () => (T$12.doubleToGlyphInfo = dart.constFn(dart_rti.findType("ui|GlyphInfo(core|double)")))(),
    TextBoxN: () => (T$12.TextBoxN = dart.constFn(dart_rti.findType("ui|TextBox?")))(),
    CanvasParagraphToString: () => (T$12.CanvasParagraphToString = dart.constFn(dart_rti.findType("core|String(_engine|CanvasParagraph)")))(),
    intToListOfLayoutFragmentN: () => (T$12.intToListOfLayoutFragmentN = dart.constFn(dart_rti.findType("core|List<_engine|LayoutFragment?>(core|int)")))(),
    intToListOfLayoutFragment: () => (T$12.intToListOfLayoutFragment = dart.constFn(dart_rti.findType("core|List<_engine|LayoutFragment>(core|int)")))(),
    LayoutFragmenter: () => (T$12.LayoutFragmenter = dart.constFn(dart_rti.findType("_engine|LayoutFragmenter")))(),
    ParagraphLineTovoid: () => (T$12.ParagraphLineTovoid = dart.constFn(dart_rti.findType("~(_engine|ParagraphLine)")))(),
    __Todouble: () => (T$12.__Todouble = dart.constFn(dart_rti.findType("core|double({direction!ui|TextDirection,end!core|int,line!_engine|ParagraphLine,start!core|int,startOffset!core|double})")))(),
    ParagraphLineAndintAnddouble__Todouble: () => (T$12.ParagraphLineAndintAnddouble__Todouble = dart.constFn(dart_rti.findType("core|double(_engine|ParagraphLine,core|int,core|double,ui|TextDirection)")))(),
    intAndintAndBoxHeightStyle__ToListOfTextBox: () => (T$12.intAndintAndBoxHeightStyle__ToListOfTextBox = dart.constFn(dart_rti.findType("core|List<ui|TextBox>(core|int,core|int,ui|BoxHeightStyle,ui|BoxWidthStyle)")))(),
    doubleToParagraphLineN: () => (T$12.doubleToParagraphLineN = dart.constFn(dart_rti.findType("_engine|ParagraphLine?(core|double)")))(),
    LayoutFragmenterN: () => (T$12.LayoutFragmenterN = dart.constFn(dart_rti.findType("_engine|LayoutFragmenter?")))(),
    CanvasParagraphAndSpanometer__ToLineBuilder: () => (T$12.CanvasParagraphAndSpanometer__ToLineBuilder = dart.constFn(dart_rti.findType("_engine|LineBuilder(_engine|CanvasParagraph,_engine|Spanometer{maxWidth!core|double})")))(),
    LayoutFragmentTovoid: () => (T$12.LayoutFragmentTovoid = dart.constFn(dart_rti.findType("~(_engine|LayoutFragment)")))(),
    __Tovoid$24: () => (T$12.__Tovoid$24 = dart.constFn(dart_rti.findType("~({allowEmptyLine:core|bool,availableWidth:core|double?})")))(),
    ListOfLayoutFragment__Toint: () => (T$12.ListOfLayoutFragment__Toint = dart.constFn(dart_rti.findType("core|int(core|List<_engine|LayoutFragment>{startFrom!core|int})")))(),
    VoidToParagraphLine: () => (T$12.VoidToParagraphLine = dart.constFn(dart_rti.findType("_engine|ParagraphLine()")))(),
    VoidToLineBuilder: () => (T$12.VoidToLineBuilder = dart.constFn(dart_rti.findType("_engine|LineBuilder()")))(),
    ListOfLayoutFragment: () => (T$12.ListOfLayoutFragment = dart.constFn(dart_rti.findType("core|List<_engine|LayoutFragment>")))(),
    ListNOfLayoutFragment: () => (T$12.ListNOfLayoutFragment = dart.constFn(dart_rti.findType("core|List<_engine|LayoutFragment>?")))(),
    TextHeightStyleAndTextHeightRulerTovoid: () => (T$12.TextHeightStyleAndTextHeightRulerTovoid = dart.constFn(dart_rti.findType("~(_engine|TextHeightStyle,_engine|TextHeightRuler)")))(),
    MapOfTextHeightStyle$TextHeightRuler: () => (T$12.MapOfTextHeightStyle$TextHeightRuler = dart.constFn(dart_rti.findType("core|Map<_engine|TextHeightStyle,_engine|TextHeightRuler>")))(),
    ParagraphSpanN: () => (T$12.ParagraphSpanN = dart.constFn(dart_rti.findType("_engine|ParagraphSpan?")))(),
    StringTodouble: () => (T$12.StringTodouble = dart.constFn(dart_rti.findType("core|double(core|String)")))(),
    intAndint__Toint$1: () => (T$12.intAndint__Toint$1 = dart.constFn(dart_rti.findType("core|int(core|int,core|int{allowEmpty!core|bool,availableWidth!core|double})")))(),
    RulerHost: () => (T$12.RulerHost = dart.constFn(dart_rti.findType("_engine|RulerHost")))(),
    TextHeightRulerN: () => (T$12.TextHeightRulerN = dart.constFn(dart_rti.findType("_engine|TextHeightRuler?")))(),
    TextHeightStyle: () => (T$12.TextHeightStyle = dart.constFn(dart_rti.findType("_engine|TextHeightStyle")))(),
    TextHeightRuler: () => (T$12.TextHeightRuler = dart.constFn(dart_rti.findType("_engine|TextHeightRuler")))(),
    ListOfLineBreakType: () => (T$12.ListOfLineBreakType = dart.constFn(dart_rti.findType("core|List<_engine|LineBreakType>")))(),
    LineBreakTypeL: () => (T$12.LineBreakTypeL = dart.constFn(dart_rti.findType("_engine|LineBreakType*")))(),
    StringToLineBreakFragmenter: () => (T$12.StringToLineBreakFragmenter = dart.constFn(dart_rti.findType("_engine|LineBreakFragmenter(core|String)")))(),
    VoidToListOfLineBreakFragment: () => (T$12.VoidToListOfLineBreakFragment = dart.constFn(dart_rti.findType("core|List<_engine|LineBreakFragment>()")))(),
    DomV8BreakIterator: () => (T$12.DomV8BreakIterator = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    LineBreakFragment: () => (T$12.LineBreakFragment = dart.constFn(dart_rti.findType("_engine|LineBreakFragment")))(),
    SurfacePaintN: () => (T$12.SurfacePaintN = dart.constFn(dart_rti.findType("_engine|SurfacePaint?")))(),
    BitmapCanvasAndOffsetAndLayoutFragmentTovoid: () => (T$12.BitmapCanvasAndOffsetAndLayoutFragmentTovoid = dart.constFn(dart_rti.findType("~(_engine|BitmapCanvas,ui|Offset,_engine|LayoutFragment)")))(),
    BitmapCanvasAndOffsetAndParagraphLine__Tovoid: () => (T$12.BitmapCanvasAndOffsetAndParagraphLine__Tovoid = dart.constFn(dart_rti.findType("~(_engine|BitmapCanvas,ui|Offset,_engine|ParagraphLine,_engine|LayoutFragment)")))(),
    BitmapCanvasAndLayoutFragmentTovoid: () => (T$12.BitmapCanvasAndLayoutFragmentTovoid = dart.constFn(dart_rti.findType("~(_engine|BitmapCanvas,_engine|LayoutFragment)")))(),
    EllipsisFragment: () => (T$12.EllipsisFragment = dart.constFn(dart_rti.findType("_engine|EllipsisFragment")))(),
    intToTextRangeN: () => (T$12.intToTextRangeN = dart.constFn(dart_rti.findType("ui|TextRange?(core|int)")))(),
    LayoutFragmentAndboolToLayoutFragmentN: () => (T$12.LayoutFragmentAndboolToLayoutFragmentN = dart.constFn(dart_rti.findType("_engine|LayoutFragment?(_engine|LayoutFragment,core|bool)")))(),
    doubleToLayoutFragmentN: () => (T$12.doubleToLayoutFragmentN = dart.constFn(dart_rti.findType("_engine|LayoutFragment?(core|double)")))(),
    EngineStrutStyleN: () => (T$12.EngineStrutStyleN = dart.constFn(dart_rti.findType("_engine|EngineStrutStyle?")))(),
    __ToEngineTextStyle: () => (T$12.__ToEngineTextStyle = dart.constFn(dart_rti.findType("_engine|EngineTextStyle({background!ui|Paint?,color!ui|Color?,decoration!ui|TextDecoration?,decorationColor!ui|Color?,decorationStyle!ui|TextDecorationStyle?,decorationThickness!core|double?,fontFamily!core|String?,fontFamilyFallback!core|List<core|String>?,fontFeatures!core|List<ui|FontFeature>?,fontSize!core|double?,fontStyle!ui|FontStyle?,fontVariations!core|List<ui|FontVariation>?,fontWeight!ui|FontWeight?,foreground!ui|Paint?,height!core|double?,leadingDistribution!ui|TextLeadingDistribution?,letterSpacing!core|double?,locale!ui|Locale?,shadows!core|List<ui|Shadow>?,textBaseline!ui|TextBaseline?,wordSpacing!core|double?})")))(),
    EngineParagraphStyleToEngineTextStyle: () => (T$12.EngineParagraphStyleToEngineTextStyle = dart.constFn(dart_rti.findType("_engine|EngineTextStyle(_engine|EngineParagraphStyle)")))(),
    VoidToTextHeightStyle: () => (T$12.VoidToTextHeightStyle = dart.constFn(dart_rti.findType("_engine|TextHeightStyle()")))(),
    TextHeightStyleN: () => (T$12.TextHeightStyleN = dart.constFn(dart_rti.findType("_engine|TextHeightStyle?")))(),
    EngineStrutStyle: () => (T$12.EngineStrutStyle = dart.constFn(dart_rti.findType("_engine|EngineStrutStyle")))(),
    TextHeightStyleTovoid: () => (T$12.TextHeightStyleTovoid = dart.constFn(dart_rti.findType("~(_engine|TextHeightStyle)")))(),
    VoidToDomRect: () => (T$12.VoidToDomRect = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    DomRectN: () => (T$12.DomRectN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    VoidToDomHTMLElement: () => (T$12.VoidToDomHTMLElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    TextDimensions: () => (T$12.TextDimensions = dart.constFn(dart_rti.findType("_engine|TextDimensions")))(),
    ListOfFragmentFlow: () => (T$12.ListOfFragmentFlow = dart.constFn(dart_rti.findType("core|List<_engine|FragmentFlow>")))(),
    FragmentFlowL: () => (T$12.FragmentFlowL = dart.constFn(dart_rti.findType("_engine|FragmentFlow*")))(),
    VoidToListOfBidiFragment: () => (T$12.VoidToListOfBidiFragment = dart.constFn(dart_rti.findType("core|List<_engine|BidiFragment>()")))(),
    BidiFragment: () => (T$12.BidiFragment = dart.constFn(dart_rti.findType("_engine|BidiFragment")))(),
    ListOf_ComparisonResult: () => (T$12.ListOf_ComparisonResult = dart.constFn(dart_rti.findType("core|List<_engine|_ComparisonResult>")))(),
    _ComparisonResult: () => (T$12._ComparisonResult = dart.constFn(dart_rti.findType("_engine|_ComparisonResult")))(),
    _ComparisonResultL: () => (T$12._ComparisonResultL = dart.constFn(dart_rti.findType("_engine|_ComparisonResult*")))(),
    intTo_ComparisonResult: () => (T$12.intTo_ComparisonResult = dart.constFn(dart_rti.findType("_engine|_ComparisonResult(core|int)")))(),
    StringAndintAndListOfP__ToUnicodePropertyLookupOfP: () => (T$12.StringAndintAndListOfP__ToUnicodePropertyLookupOfP = dart.constFn(dart_rti.findType("_engine|UnicodePropertyLookup<0^>(core|String,core|int,core|List<0^>,0^)<core|Object?>")))(),
    ListOf_FindBreakDirection: () => (T$12.ListOf_FindBreakDirection = dart.constFn(dart_rti.findType("core|List<_engine|_FindBreakDirection>")))(),
    _FindBreakDirection: () => (T$12._FindBreakDirection = dart.constFn(dart_rti.findType("_engine|_FindBreakDirection")))(),
    _FindBreakDirectionL: () => (T$12._FindBreakDirectionL = dart.constFn(dart_rti.findType("_engine|_FindBreakDirection*")))(),
    _FindBreakDirectionAndStringAndintToint: () => (T$12._FindBreakDirectionAndStringAndintToint = dart.constFn(dart_rti.findType("core|int(_engine|_FindBreakDirection,core|String,core|int)")))(),
    StringNAndintTobool: () => (T$12.StringNAndintTobool = dart.constFn(dart_rti.findType("core|bool(core|String?,core|int)")))(),
    WordCharPropertyNAndWordCharPropertyAndWordCharProperty__Tobool: () => (T$12.WordCharPropertyNAndWordCharPropertyAndWordCharProperty__Tobool = dart.constFn(dart_rti.findType("core|bool(_web_unicode|WordCharProperty?,_web_unicode|WordCharProperty,_web_unicode|WordCharProperty[_web_unicode|WordCharProperty?,_web_unicode|WordCharProperty?,_web_unicode|WordCharProperty?])")))(),
    WordCharPropertyNTobool: () => (T$12.WordCharPropertyNTobool = dart.constFn(dart_rti.findType("core|bool(_web_unicode|WordCharProperty?)")))(),
    BrowserAutofillHints: () => (T$12.BrowserAutofillHints = dart.constFn(dart_rti.findType("_engine|BrowserAutofillHints")))(),
    StringToEngineInputAction: () => (T$12.StringToEngineInputAction = dart.constFn(dart_rti.findType("_engine|EngineInputAction(core|String)")))(),
    NoInputAction: () => (T$12.NoInputAction = dart.constFn(dart_rti.findType("_engine|NoInputAction")))(),
    NextInputAction: () => (T$12.NextInputAction = dart.constFn(dart_rti.findType("_engine|NextInputAction")))(),
    PreviousInputAction: () => (T$12.PreviousInputAction = dart.constFn(dart_rti.findType("_engine|PreviousInputAction")))(),
    DoneInputAction: () => (T$12.DoneInputAction = dart.constFn(dart_rti.findType("_engine|DoneInputAction")))(),
    GoInputAction: () => (T$12.GoInputAction = dart.constFn(dart_rti.findType("_engine|GoInputAction")))(),
    EnterInputAction: () => (T$12.EnterInputAction = dart.constFn(dart_rti.findType("_engine|EnterInputAction")))(),
    SearchInputAction: () => (T$12.SearchInputAction = dart.constFn(dart_rti.findType("_engine|SearchInputAction")))(),
    SendInputAction: () => (T$12.SendInputAction = dart.constFn(dart_rti.findType("_engine|SendInputAction")))(),
    String__ToEngineInputType: () => (T$12.String__ToEngineInputType = dart.constFn(dart_rti.findType("_engine|EngineInputType(core|String{isDecimal:core|bool,isMultiline:core|bool})")))(),
    NoTextInputType: () => (T$12.NoTextInputType = dart.constFn(dart_rti.findType("_engine|NoTextInputType")))(),
    MultilineNoTextInputType: () => (T$12.MultilineNoTextInputType = dart.constFn(dart_rti.findType("_engine|MultilineNoTextInputType")))(),
    TextInputType: () => (T$12.TextInputType = dart.constFn(dart_rti.findType("_engine|TextInputType")))(),
    NumberInputType: () => (T$12.NumberInputType = dart.constFn(dart_rti.findType("_engine|NumberInputType")))(),
    DecimalInputType: () => (T$12.DecimalInputType = dart.constFn(dart_rti.findType("_engine|DecimalInputType")))(),
    PhoneInputType: () => (T$12.PhoneInputType = dart.constFn(dart_rti.findType("_engine|PhoneInputType")))(),
    EmailInputType: () => (T$12.EmailInputType = dart.constFn(dart_rti.findType("_engine|EmailInputType")))(),
    UrlInputType: () => (T$12.UrlInputType = dart.constFn(dart_rti.findType("_engine|UrlInputType")))(),
    ListOfTextCapitalization: () => (T$12.ListOfTextCapitalization = dart.constFn(dart_rti.findType("core|List<_engine|TextCapitalization>")))(),
    TextCapitalization: () => (T$12.TextCapitalization = dart.constFn(dart_rti.findType("_engine|TextCapitalization")))(),
    TextCapitalizationL: () => (T$12.TextCapitalizationL = dart.constFn(dart_rti.findType("_engine|TextCapitalization*")))(),
    DomHTMLTextAreaElement: () => (T$12.DomHTMLTextAreaElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    AutofillInfo: () => (T$12.AutofillInfo = dart.constFn(dart_rti.findType("_engine|AutofillInfo")))(),
    intAndMapNOfString$dynamicAndListNToEngineAutofillFormN: () => (T$12.intAndMapNOfString$dynamicAndListNToEngineAutofillFormN = dart.constFn(dart_rti.findType("_engine|EngineAutofillForm?(core|int,core|Map<core|String,@>?,core|List<@>?)")))(),
    VoidToListOfDomSubscription: () => (T$12.VoidToListOfDomSubscription = dart.constFn(dart_rti.findType("core|List<_engine|DomSubscription>()")))(),
    DomElementAndAutofillInfoTovoid: () => (T$12.DomElementAndAutofillInfoTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,_engine|AutofillInfo)")))(),
    StringNAndEditingStateTovoid: () => (T$12.StringNAndEditingStateTovoid = dart.constFn(dart_rti.findType("~(core|String?,_engine|EditingState)")))(),
    DomHTMLFormElement: () => (T$12.DomHTMLFormElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    MapNOfString$DomHTMLElement: () => (T$12.MapNOfString$DomHTMLElement = dart.constFn(dart_rti.findType("core|Map<core|String,_interceptors|JavaScriptObject>?")))(),
    MapNOfString$AutofillInfo: () => (T$12.MapNOfString$AutofillInfo = dart.constFn(dart_rti.findType("core|Map<core|String,_engine|AutofillInfo>?")))(),
    MapOfString$dynamic__ToAutofillInfo: () => (T$12.MapOfString$dynamic__ToAutofillInfo = dart.constFn(dart_rti.findType("_engine|AutofillInfo(core|Map<core|String,@>{textCapitalization:_engine|TextCapitalizationConfig})")))(),
    DomHTMLElement__Tovoid: () => (T$12.DomHTMLElement__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject{focusedElement:core|bool})")))(),
    EditingState: () => (T$12.EditingState = dart.constFn(dart_rti.findType("_engine|EditingState")))(),
    TextCapitalizationConfig: () => (T$12.TextCapitalizationConfig = dart.constFn(dart_rti.findType("_engine|TextCapitalizationConfig")))(),
    EditingStateAndEditingStateNAndTextEditingDeltaStateToTextEditingDeltaState: () => (T$12.EditingStateAndEditingStateNAndTextEditingDeltaStateToTextEditingDeltaState = dart.constFn(dart_rti.findType("_engine|TextEditingDeltaState(_engine|EditingState,_engine|EditingState?,_engine|TextEditingDeltaState)")))(),
    __ToTextEditingDeltaState: () => (T$12.__ToTextEditingDeltaState = dart.constFn(dart_rti.findType("_engine|TextEditingDeltaState({baseOffset:core|int?,composingExtent:core|int?,composingOffset:core|int?,deltaEnd:core|int?,deltaStart:core|int?,deltaText:core|String?,extentOffset:core|int?,oldText:core|String?})")))(),
    MapOfString$dynamicToEditingState: () => (T$12.MapOfString$dynamicToEditingState = dart.constFn(dart_rti.findType("_engine|EditingState(core|Map<core|String,@>)")))(),
    DomHTMLElementNToEditingState: () => (T$12.DomHTMLElementNToEditingState = dart.constFn(dart_rti.findType("_engine|EditingState(_interceptors|JavaScriptObject?)")))(),
    __ToEditingState: () => (T$12.__ToEditingState = dart.constFn(dart_rti.findType("_engine|EditingState({baseOffset:core|int?,composingBaseOffset:core|int?,composingExtentOffset:core|int?,extentOffset:core|int?,text:core|String?})")))(),
    DomHTMLElementNTovoid: () => (T$12.DomHTMLElementNTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject?)")))(),
    EngineInputType: () => (T$12.EngineInputType = dart.constFn(dart_rti.findType("_engine|EngineInputType")))(),
    AutofillInfoN: () => (T$12.AutofillInfoN = dart.constFn(dart_rti.findType("_engine|AutofillInfo?")))(),
    EngineAutofillFormN: () => (T$12.EngineAutofillFormN = dart.constFn(dart_rti.findType("_engine|EngineAutofillForm?")))(),
    HybridTextEditingTovoid: () => (T$12.HybridTextEditingTovoid = dart.constFn(dart_rti.findType("~(_engine|HybridTextEditing)")))(),
    EditableTextGeometry: () => (T$12.EditableTextGeometry = dart.constFn(dart_rti.findType("_engine|EditableTextGeometry")))(),
    EditableTextStyle: () => (T$12.EditableTextStyle = dart.constFn(dart_rti.findType("_engine|EditableTextStyle")))(),
    ByteDataNAndFnTovoid$1: () => (T$12.ByteDataNAndFnTovoid$1 = dart.constFn(dart_rti.findType("~(typed_data|ByteData?,~(typed_data|ByteData?)?)")))(),
    intNAndEditingStateNTovoid: () => (T$12.intNAndEditingStateNTovoid = dart.constFn(dart_rti.findType("~(core|int?,_engine|EditingState?)")))(),
    intNAndTextEditingDeltaStateNTovoid: () => (T$12.intNAndTextEditingDeltaStateNTovoid = dart.constFn(dart_rti.findType("~(core|int?,_engine|TextEditingDeltaState?)")))(),
    intNAndStringNTovoid$1: () => (T$12.intNAndStringNTovoid$1 = dart.constFn(dart_rti.findType("~(core|int?,core|String?)")))(),
    EditingStateNAndTextEditingDeltaStateNTovoid: () => (T$12.EditingStateNAndTextEditingDeltaStateNTovoid = dart.constFn(dart_rti.findType("~(_engine|EditingState?,_engine|TextEditingDeltaState?)")))(),
    TextEditingChannel: () => (T$12.TextEditingChannel = dart.constFn(dart_rti.findType("_engine|TextEditingChannel")))(),
    DefaultTextEditingStrategy: () => (T$12.DefaultTextEditingStrategy = dart.constFn(dart_rti.findType("_engine|DefaultTextEditingStrategy")))(),
    TextInputCommandAndFnTovoid: () => (T$12.TextInputCommandAndFnTovoid = dart.constFn(dart_rti.findType("~(_engine|TextInputCommand,~())")))(),
    TextEditingChannelN: () => (T$12.TextEditingChannelN = dart.constFn(dart_rti.findType("_engine|TextEditingChannel?")))(),
    DefaultTextEditingStrategyN: () => (T$12.DefaultTextEditingStrategyN = dart.constFn(dart_rti.findType("_engine|DefaultTextEditingStrategy?")))(),
    MapOfString$dynamicToEditableTextStyle: () => (T$12.MapOfString$dynamicToEditableTextStyle = dart.constFn(dart_rti.findType("_engine|EditableTextStyle(core|Map<core|String,@>)")))(),
    MapOfString$dynamicToEditableTextGeometry: () => (T$12.MapOfString$dynamicToEditableTextGeometry = dart.constFn(dart_rti.findType("_engine|EditableTextGeometry(core|Map<core|String,@>)")))(),
    ListOfTransformKind: () => (T$12.ListOfTransformKind = dart.constFn(dart_rti.findType("core|List<_engine|TransformKind>")))(),
    TransformKind: () => (T$12.TransformKind = dart.constFn(dart_rti.findType("_engine|TransformKind")))(),
    TransformKindL: () => (T$12.TransformKindL = dart.constFn(dart_rti.findType("_engine|TransformKind*")))(),
    VoidToSize: () => (T$12.VoidToSize = dart.constFn(dart_rti.findType("ui|Size()")))(),
    doubleAnddoubleAnddouble__ToMatrix4: () => (T$12.doubleAnddoubleAnddouble__ToMatrix4 = dart.constFn(dart_rti.findType("_engine|Matrix4(core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    Matrix4ToMatrix4: () => (T$12.Matrix4ToMatrix4 = dart.constFn(dart_rti.findType("_engine|Matrix4(_engine|Matrix4)")))(),
    doubleToMatrix4: () => (T$12.doubleToMatrix4 = dart.constFn(dart_rti.findType("_engine|Matrix4(core|double)")))(),
    RecToMatrix4: () => (T$12.RecToMatrix4 = dart.constFn(dart_rti.findType("_engine|Matrix4(+x,y,z(core|double,core|double,core|double))")))(),
    doubleAnddoubleAnddoubleToMatrix4: () => (T$12.doubleAnddoubleAnddoubleToMatrix4 = dart.constFn(dart_rti.findType("_engine|Matrix4(core|double,core|double,core|double)")))(),
    Matrix4ToMatrix4N: () => (T$12.Matrix4ToMatrix4N = dart.constFn(dart_rti.findType("_engine|Matrix4?(_engine|Matrix4)")))(),
    intAndintAnddoubleTovoid: () => (T$12.intAndintAnddoubleTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,core|double)")))(),
    doubleAnddoubleAnddouble__Tovoid$9: () => (T$12.doubleAnddoubleAnddouble__Tovoid$9 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    VoidToMatrix4: () => (T$12.VoidToMatrix4 = dart.constFn(dart_rti.findType("_engine|Matrix4()")))(),
    doubleAnddoubleAnddoubleTovoid: () => (T$12.doubleAnddoubleAnddoubleTovoid = dart.constFn(dart_rti.findType("~(core|double[core|double,core|double])")))(),
    doubleAnddoubleNAnddoubleNTovoid: () => (T$12.doubleAnddoubleNAnddoubleNTovoid = dart.constFn(dart_rti.findType("~(core|double[core|double?,core|double?])")))(),
    doubleAnddoubleNAnddoubleNToMatrix4: () => (T$12.doubleAnddoubleNAnddoubleNToMatrix4 = dart.constFn(dart_rti.findType("_engine|Matrix4(core|double[core|double?,core|double?])")))(),
    __ToRec: () => (T$12.__ToRec = dart.constFn(dart_rti.findType("+x,y,z(core|double,core|double,core|double)({x!core|double,y!core|double,z!core|double})")))(),
    VoidToRec$2: () => (T$12.VoidToRec$2 = dart.constFn(dart_rti.findType("+x,y,z(core|double,core|double,core|double)()")))(),
    RecAnddoubleTovoid: () => (T$12.RecAnddoubleTovoid = dart.constFn(dart_rti.findType("~(+x,y,z(core|double,core|double,core|double),core|double)")))(),
    RecTovoid: () => (T$12.RecTovoid = dart.constFn(dart_rti.findType("~(+x,y,z(core|double,core|double,core|double))")))(),
    doubleAnddoubleAnddoubleTovoid$1: () => (T$12.doubleAnddoubleAnddoubleTovoid$1 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double)")))(),
    Matrix4Todouble: () => (T$12.Matrix4Todouble = dart.constFn(dart_rti.findType("core|double(_engine|Matrix4)")))(),
    ListOfnumAndintTovoid: () => (T$12.ListOfnumAndintTovoid = dart.constFn(dart_rti.findType("~(core|List<core|num>[core|int])")))(),
    ListOfdoubleAndintTovoid: () => (T$12.ListOfdoubleAndintTovoid = dart.constFn(dart_rti.findType("~(core|List<core|double>[core|int])")))(),
    ListOfDomResizeObserverEntryAndDomResizeObserverTovoid: () => (T$12.ListOfDomResizeObserverEntryAndDomResizeObserverTovoid = dart.constFn(dart_rti.findType("~(core|List<_interceptors|JavaScriptObject>,_interceptors|JavaScriptObject)")))(),
    __ToDimensionsProvider: () => (T$12.__ToDimensionsProvider = dart.constFn(dart_rti.findType("_engine|DimensionsProvider({hostElement:_interceptors|JavaScriptObject?})")))(),
    DomResizeObserverN: () => (T$12.DomResizeObserverN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    StreamSubscriptionNOfdouble: () => (T$12.StreamSubscriptionNOfdouble = dart.constFn(dart_rti.findType("async|StreamSubscription<core|double>?")))(),
    StreamOfSizeN: () => (T$12.StreamOfSizeN = dart.constFn(dart_rti.findType("async|Stream<ui|Size?>")))(),
    doubleAndboolToViewPadding: () => (T$12.doubleAndboolToViewPadding = dart.constFn(dart_rti.findType("_engine|ViewPadding(core|double,core|bool)")))(),
    StreamControllerOfSizeN: () => (T$12.StreamControllerOfSizeN = dart.constFn(dart_rti.findType("async|StreamController<ui|Size?>")))(),
    DomVisualViewportN: () => (T$12.DomVisualViewportN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    StreamOfdouble: () => (T$12.StreamOfdouble = dart.constFn(dart_rti.findType("async|Stream<core|double>")))(),
    DisplayDprStream: () => (T$12.DisplayDprStream = dart.constFn(dart_rti.findType("_engine|DisplayDprStream")))(),
    Display: () => (T$12.Display = dart.constFn(dart_rti.findType("ui|Display")))(),
    StreamControllerOfdouble: () => (T$12.StreamControllerOfdouble = dart.constFn(dart_rti.findType("async|StreamController<core|double>")))(),
    DebugDisplayDprStreamOverridesN: () => (T$12.DebugDisplayDprStreamOverridesN = dart.constFn(dart_rti.findType("_engine|DebugDisplayDprStreamOverrides?")))(),
    doubleToNDomEventTarget: () => (T$12.doubleToNDomEventTarget = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|double)?")))(),
    __ToDomManager: () => (T$12.__ToDomManager = dart.constFn(dart_rti.findType("_engine|DomManager({devicePixelRatio!core|double})")))(),
    DomShadowRoot: () => (T$12.DomShadowRoot = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    __ToEmbeddingStrategy: () => (T$12.__ToEmbeddingStrategy = dart.constFn(dart_rti.findType("_engine|EmbeddingStrategy({hostElement:_interceptors|JavaScriptObject?})")))(),
    DomHTMLHeadElementN: () => (T$12.DomHTMLHeadElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    JsFlutterViewOptions: () => (T$12.JsFlutterViewOptions = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StreamOfint: () => (T$12.StreamOfint = dart.constFn(dart_rti.findType("async|Stream<core|int>")))(),
    intToEngineFlutterViewN: () => (T$12.intToEngineFlutterViewN = dart.constFn(dart_rti.findType("_engine|EngineFlutterView?(core|int)")))(),
    JsFlutterViewOptionsToEngineFlutterView: () => (T$12.JsFlutterViewOptionsToEngineFlutterView = dart.constFn(dart_rti.findType("_engine|EngineFlutterView(_interceptors|JavaScriptObject)")))(),
    EngineFlutterView__ToEngineFlutterView: () => (T$12.EngineFlutterView__ToEngineFlutterView = dart.constFn(dart_rti.findType("_engine|EngineFlutterView(_engine|EngineFlutterView{jsViewOptions:_interceptors|JavaScriptObject?})")))(),
    DomElementNToEngineFlutterViewN: () => (T$12.DomElementNToEngineFlutterViewN = dart.constFn(dart_rti.findType("_engine|EngineFlutterView?(_interceptors|JavaScriptObject?)")))(),
    MapOfint$EngineFlutterView: () => (T$12.MapOfint$EngineFlutterView = dart.constFn(dart_rti.findType("core|Map<core|int,_engine|EngineFlutterView>")))(),
    MapOfint$JsFlutterViewOptions: () => (T$12.MapOfint$JsFlutterViewOptions = dart.constFn(dart_rti.findType("core|Map<core|int,_interceptors|JavaScriptObject>")))(),
    StreamControllerOfint: () => (T$12.StreamControllerOfint = dart.constFn(dart_rti.findType("async|StreamController<core|int>")))(),
    __Tovoid$25: () => (T$12.__Tovoid$25 = dart.constFn(dart_rti.findType("~({autoDetectRenderer!core|bool,buildMode!core|String,rendererTag!core|String,viewId!core|int})")))(),
    __Tovoid$26: () => (T$12.__Tovoid$26 = dart.constFn(dart_rti.findType("~({cssSelectorPrefix!core|String,node!_interceptors|JavaScriptObject,styleId!core|String,styleNonce!core|String?})")))(),
    DomElement__Tovoid: () => (T$12.DomElement__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject{debugShowSemanticsNodes:core|bool})")))(),
    DomElementAnddoubleTovoid: () => (T$12.DomElementAnddoubleTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|double)")))(),
    EnginePlatformDispatcherAndDomElement__ToEngineFlutterView: () => (T$12.EnginePlatformDispatcherAndDomElement__ToEngineFlutterView = dart.constFn(dart_rti.findType("_engine|EngineFlutterView(_engine|EnginePlatformDispatcher,_interceptors|JavaScriptObject{viewConstraints:_interceptors|JavaScriptObject?})")))(),
    EnginePlatformDispatcherAndDomElementNToEngineFlutterWindow: () => (T$12.EnginePlatformDispatcherAndDomElementNToEngineFlutterWindow = dart.constFn(dart_rti.findType("_engine|EngineFlutterWindow(_engine|EnginePlatformDispatcher,_interceptors|JavaScriptObject?)")))(),
    StreamSubscriptionOfSizeN: () => (T$12.StreamSubscriptionOfSizeN = dart.constFn(dart_rti.findType("async|StreamSubscription<ui|Size?>")))(),
    Scene__Tovoid: () => (T$12.Scene__Tovoid = dart.constFn(dart_rti.findType("~(ui|Scene{size:ui|Size?})")))(),
    GlobalHtmlAttributes: () => (T$12.GlobalHtmlAttributes = dart.constFn(dart_rti.findType("_engine|GlobalHtmlAttributes")))(),
    MouseCursor: () => (T$12.MouseCursor = dart.constFn(dart_rti.findType("_engine|MouseCursor")))(),
    ContextMenu: () => (T$12.ContextMenu = dart.constFn(dart_rti.findType("_engine|ContextMenu")))(),
    ViewConstraints: () => (T$12.ViewConstraints = dart.constFn(dart_rti.findType("_engine|ViewConstraints")))(),
    SizeTovoid: () => (T$12.SizeTovoid = dart.constFn(dart_rti.findType("~(ui|Size)")))(),
    SizeTobool: () => (T$12.SizeTobool = dart.constFn(dart_rti.findType("core|bool(ui|Size)")))(),
    EmbeddingStrategy: () => (T$12.EmbeddingStrategy = dart.constFn(dart_rti.findType("_engine|EmbeddingStrategy")))(),
    StreamSubscriptionNOfSizeN: () => (T$12.StreamSubscriptionNOfSizeN = dart.constFn(dart_rti.findType("async|StreamSubscription<ui|Size?>?")))(),
    ViewConfiguration: () => (T$12.ViewConfiguration = dart.constFn(dart_rti.findType("_engine|ViewConfiguration")))(),
    GlobalHtmlAttributesN: () => (T$12.GlobalHtmlAttributesN = dart.constFn(dart_rti.findType("_engine|GlobalHtmlAttributes?")))(),
    MouseCursorN: () => (T$12.MouseCursorN = dart.constFn(dart_rti.findType("_engine|MouseCursor?")))(),
    ContextMenuN: () => (T$12.ContextMenuN = dart.constFn(dart_rti.findType("_engine|ContextMenu?")))(),
    DomManagerN: () => (T$12.DomManagerN = dart.constFn(dart_rti.findType("_engine|DomManager?")))(),
    PointerBindingN: () => (T$12.PointerBindingN = dart.constFn(dart_rti.findType("_engine|PointerBinding?")))(),
    JsViewConstraintsN: () => (T$12.JsViewConstraintsN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    EngineSemanticsOwnerN: () => (T$12.EngineSemanticsOwnerN = dart.constFn(dart_rti.findType("_engine|EngineSemanticsOwner?")))(),
    DimensionsProvider: () => (T$12.DimensionsProvider = dart.constFn(dart_rti.findType("_engine|DimensionsProvider")))(),
    SingleEntryBrowserHistory: () => (T$12.SingleEntryBrowserHistory = dart.constFn(dart_rti.findType("_engine|SingleEntryBrowserHistory")))(),
    MultiEntriesBrowserHistory: () => (T$12.MultiEntriesBrowserHistory = dart.constFn(dart_rti.findType("_engine|MultiEntriesBrowserHistory")))(),
    BrowserHistory: () => (T$12.BrowserHistory = dart.constFn(dart_rti.findType("_engine|BrowserHistory")))(),
    UrlStrategyN__ToFutureOfvoid: () => (T$12.UrlStrategyN__ToFutureOfvoid = dart.constFn(dart_rti.findType("async|Future<~>(ui_web|UrlStrategy?{useSingle!core|bool})")))(),
    FnToFutureOfbool$1: () => (T$12.FnToFutureOfbool$1 = dart.constFn(dart_rti.findType("async|Future<core|bool>(async|Future<core|bool>())")))(),
    ByteDataNToFutureOfbool: () => (T$12.ByteDataNToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(typed_data|ByteData?)")))(),
    BrowserHistoryN: () => (T$12.BrowserHistoryN = dart.constFn(dart_rti.findType("_engine|BrowserHistory?")))(),
    doubleAnddoubleAndStringToString: () => (T$12.doubleAnddoubleAndStringToString = dart.constFn(dart_rti.findType("core|String(core|double,core|double,core|String)")))(),
    JsViewConstraintsNAndSizeToViewConstraints: () => (T$12.JsViewConstraintsNAndSizeToViewConstraints = dart.constFn(dart_rti.findType("_engine|ViewConstraints(_interceptors|JavaScriptObject?,ui|Size)")))(),
    doubleToViewConstraints: () => (T$12.doubleToViewConstraints = dart.constFn(dart_rti.findType("_engine|ViewConstraints(core|double)")))(),
    SkAnimatedImageN: () => (T$12.SkAnimatedImageN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    Uint8ListToSkAnimatedImageN: () => (T$12.Uint8ListToSkAnimatedImageN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(typed_data|Uint8List)")))(),
    SkVertexModeAndFloat32ListAndFloat32ListN__ToSkVertices: () => (T$12.SkVertexModeAndFloat32ListAndFloat32ListN__ToSkVertices = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_interceptors|JavaScriptObject,typed_data|Float32List,typed_data|Float32List?,typed_data|Uint32List?,typed_data|Uint16List?)")))(),
    doubleAnddoubleToSkSurface: () => (T$12.doubleAnddoubleToSkSurface = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|double,core|double)")))(),
    SkDataToUint8List: () => (T$12.SkDataToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(_interceptors|JavaScriptObject)")))(),
    DomCanvasElementAndSkWebGLContextOptionsTodouble: () => (T$12.DomCanvasElementAndSkWebGLContextOptionsTodouble = dart.constFn(dart_rti.findType("core|double(_interceptors|JavaScriptObject,_interceptors|JavaScriptObject)")))(),
    DomOffscreenCanvasAndSkWebGLContextOptionsTodouble: () => (T$12.DomOffscreenCanvasAndSkWebGLContextOptionsTodouble = dart.constFn(dart_rti.findType("core|double(_interceptors|JavaScriptObject,_interceptors|JavaScriptObject)")))(),
    doubleToSkGrContext: () => (T$12.doubleToSkGrContext = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|double)")))(),
    SkGrContext: () => (T$12.SkGrContext = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkSurfaceN: () => (T$12.SkSurfaceN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SkGrContextAnddoubleAnddouble__ToSkSurfaceN: () => (T$12.SkGrContextAnddoubleAnddouble__ToSkSurfaceN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject,core|double,core|double,_interceptors|JavaScriptObject,core|int,core|int)")))(),
    SkGrContextAndintAndintToSkSurfaceN: () => (T$12.SkGrContextAndintAndintToSkSurfaceN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject,core|int,core|int)")))(),
    SkImageN: () => (T$12.SkImageN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SkImageInfoAndUint8ListAnddoubleToSkImageN: () => (T$12.SkImageInfoAndUint8ListAnddoubleToSkImageN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject,typed_data|Uint8List,core|double)")))(),
    ObjectAndSkPartialImageInfoToSkImageN: () => (T$12.ObjectAndSkPartialImageInfoToSkImageN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|Object,_interceptors|JavaScriptObject)")))(),
    DomImageBitmapAndboolToSkImageN: () => (T$12.DomImageBitmapAndboolToSkImageN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject,core|bool)")))(),
    SkFilterMode: () => (T$12.SkFilterMode = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFilterModeEnum: () => (T$12.SkFilterModeEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkMipmapMode: () => (T$12.SkMipmapMode = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkMipmapModeEnum: () => (T$12.SkMipmapModeEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTileModeAndSkTileModeAnddouble__ToSkShader: () => (T$12.SkTileModeAndSkTileModeAnddouble__ToSkShader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,core|double,core|double,typed_data|Float32List?)")))(),
    SkTileModeAndSkTileModeAndSkFilterMode__ToSkShader: () => (T$12.SkTileModeAndSkTileModeAndSkFilterMode__ToSkShader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,typed_data|Float32List?)")))(),
    doubleAnddoubleAndSkImageInfoToUint8List: () => (T$12.doubleAnddoubleAndSkImageInfoToUint8List = dart.constFn(dart_rti.findType("typed_data|Uint8List(core|double,core|double,_interceptors|JavaScriptObject)")))(),
    NativeUint8ListN: () => (T$12.NativeUint8ListN = dart.constFn(dart_rti.findType("_native_typed_data|NativeUint8List?")))(),
    VoidToUint8ListN: () => (T$12.VoidToUint8ListN = dart.constFn(dart_rti.findType("typed_data|Uint8List?()")))(),
    SkImageTobool: () => (T$12.SkImageTobool = dart.constFn(dart_rti.findType("core|bool(_interceptors|JavaScriptObject)")))(),
    Float32ListAndFloat32ListAndUint32List__ToSkShader: () => (T$12.Float32ListAndFloat32ListAndUint32List__ToSkShader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(typed_data|Float32List,typed_data|Float32List,typed_data|Uint32List,typed_data|Float32List,_interceptors|JavaScriptObject,typed_data|Float32List?)")))(),
    Float32ListAnddoubleAndUint32List__ToSkShader: () => (T$12.Float32ListAnddoubleAndUint32List__ToSkShader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(typed_data|Float32List,core|double,typed_data|Uint32List,typed_data|Float32List,_interceptors|JavaScriptObject,typed_data|Float32List?,core|double)")))(),
    Float32ListAnddoubleAndFloat32List__ToSkShader: () => (T$12.Float32ListAnddoubleAndFloat32List__ToSkShader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(typed_data|Float32List,core|double,typed_data|Float32List,core|double,typed_data|Uint32List,typed_data|Float32List,_interceptors|JavaScriptObject,typed_data|Float32List?,core|double)")))(),
    doubleAnddoubleAndUint32List__ToSkShader: () => (T$12.doubleAnddoubleAndUint32List__ToSkShader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|double,core|double,typed_data|Uint32List,typed_data|Float32List,_interceptors|JavaScriptObject,typed_data|Float32List?,core|double,core|double,core|double)")))(),
    SkMaskFilterN: () => (T$12.SkMaskFilterN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    SkBlurStyleAnddoubleAndboolToSkMaskFilterN: () => (T$12.SkBlurStyleAnddoubleAndboolToSkMaskFilterN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject,core|double,core|bool)")))()
  };
  var T$13 = {
    SkColorFilterN: () => (T$13.SkColorFilterN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    Float32ListAndSkBlendModeToSkColorFilterN: () => (T$13.Float32ListAndSkBlendModeToSkColorFilterN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(typed_data|Float32List,_interceptors|JavaScriptObject)")))(),
    Float32ListToSkColorFilter: () => (T$13.Float32ListToSkColorFilter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(typed_data|Float32List)")))(),
    doubleAnddoubleAndSkTileMode__ToSkImageFilter: () => (T$13.doubleAnddoubleAndSkTileMode__ToSkImageFilter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|double,core|double,_interceptors|JavaScriptObject,~)")))(),
    Float32ListAndCkFilterOptionsAndvoidToSkImageFilter: () => (T$13.Float32ListAndCkFilterOptionsAndvoidToSkImageFilter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(typed_data|Float32List,_interceptors|JavaScriptObject,~)")))(),
    Float32ListToInt32List: () => (T$13.Float32ListToInt32List = dart.constFn(dart_rti.findType("typed_data|Int32List(typed_data|Float32List)")))(),
    ListToSkPath: () => (T$13.ListToSkPath = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|List<@>)")))(),
    SkUint32List: () => (T$13.SkUint32List = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    Float32ListAnddoubleAnddoubleTovoid: () => (T$13.Float32ListAnddoubleAnddoubleTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,core|double,core|double)")))(),
    Float32ListAndboolAnddoubleTovoid: () => (T$13.Float32ListAndboolAnddoubleTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,core|bool,core|double)")))(),
    SkPathAnddoubleAnddouble__Tovoid: () => (T$13.SkPathAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|bool)")))(),
    Float32ListAndboolTovoid: () => (T$13.Float32ListAndboolTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,core|bool)")))(),
    Float32ListAnddoubleAnddouble__Tovoid: () => (T$13.Float32ListAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,core|double,core|double,core|bool)")))(),
    doubleAnddoubleAnddouble__Tovoid$10: () => (T$13.doubleAnddoubleAnddouble__Tovoid$10 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|bool,core|bool,core|double,core|double)")))(),
    doubleAnddoubleAnddouble__Tovoid$11: () => (T$13.doubleAnddoubleAnddouble__Tovoid$11 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double,core|double)")))(),
    VoidToList: () => (T$13.VoidToList = dart.constFn(dart_rti.findType("core|List<@>()")))(),
    doubleAnddoubleAndboolToSkPath: () => (T$13.doubleAnddoubleAndboolToSkPath = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|double,core|double,core|bool)")))(),
    doubleToFloat32List: () => (T$13.doubleToFloat32List = dart.constFn(dart_rti.findType("typed_data|Float32List(core|double)")))(),
    Float32ListToSkCanvas: () => (T$13.Float32ListToSkCanvas = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(typed_data|Float32List)")))(),
    SkPathAndSkClipOpAndboolTovoid: () => (T$13.SkPathAndSkClipOpAndboolTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,core|bool)")))(),
    Float32ListAndSkClipOpAndboolTovoid: () => (T$13.Float32ListAndSkClipOpAndboolTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,_interceptors|JavaScriptObject,core|bool)")))(),
    Float32ListAnddoubleAnddouble__Tovoid$1: () => (T$13.Float32ListAnddoubleAnddouble__Tovoid$1 = dart.constFn(dart_rti.findType("~(typed_data|Float32List,core|double,core|double,core|bool,_interceptors|JavaScriptObject)")))(),
    SkImageAndFloat32ListAndFloat32List__Tovoid: () => (T$13.SkImageAndFloat32ListAndFloat32List__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,typed_data|Float32List,typed_data|Float32List,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,typed_data|Uint32List?)")))(),
    doubleAnddoubleAnddouble__Tovoid$12: () => (T$13.doubleAnddoubleAnddouble__Tovoid$12 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,_interceptors|JavaScriptObject)")))(),
    doubleAndSkBlendModeTovoid: () => (T$13.doubleAndSkBlendModeTovoid = dart.constFn(dart_rti.findType("~(core|double,_interceptors|JavaScriptObject)")))(),
    Float32ListAndFloat32ListAndSkPaintTovoid: () => (T$13.Float32ListAndFloat32ListAndSkPaintTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,typed_data|Float32List,_interceptors|JavaScriptObject)")))(),
    SkImageAnddoubleAnddouble__Tovoid: () => (T$13.SkImageAnddoubleAnddouble__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|double,core|double,core|double,core|double,_interceptors|JavaScriptObject)")))(),
    SkImageAnddoubleAnddouble__Tovoid$1: () => (T$13.SkImageAnddoubleAnddouble__Tovoid$1 = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|double,core|double,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject)")))(),
    SkImageAndFloat32ListAndFloat32List__Tovoid$1: () => (T$13.SkImageAndFloat32ListAndFloat32List__Tovoid$1 = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,typed_data|Float32List,typed_data|Float32List,core|double,core|double,_interceptors|JavaScriptObject)")))(),
    SkImageAndFloat32ListAndFloat32List__Tovoid$2: () => (T$13.SkImageAndFloat32ListAndFloat32List__Tovoid$2 = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,typed_data|Float32List,typed_data|Float32List,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject)")))(),
    SkImageAndFloat32ListAndFloat32List__Tovoid$3: () => (T$13.SkImageAndFloat32ListAndFloat32List__Tovoid$3 = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,typed_data|Float32List,typed_data|Float32List,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject)")))(),
    doubleAnddoubleAnddouble__Tovoid$13: () => (T$13.doubleAnddoubleAnddouble__Tovoid$13 = dart.constFn(dart_rti.findType("~(core|double,core|double,core|double,core|double,_interceptors|JavaScriptObject)")))(),
    Float32ListAndSkPaintTovoid: () => (T$13.Float32ListAndSkPaintTovoid = dart.constFn(dart_rti.findType("~(typed_data|Float32List,_interceptors|JavaScriptObject)")))(),
    SkPointModeAndFloat32ListAndSkPaintTovoid: () => (T$13.SkPointModeAndFloat32ListAndSkPaintTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,typed_data|Float32List,_interceptors|JavaScriptObject)")))(),
    SkPathAndFloat32ListAndFloat32List__Tovoid: () => (T$13.SkPathAndFloat32ListAndFloat32List__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,typed_data|Float32List,typed_data|Float32List,core|double,typed_data|Float32List,typed_data|Float32List,core|double)")))(),
    SkPaintNAndFloat32ListNAndSkImageFilterN__Tovoid: () => (T$13.SkPaintNAndFloat32ListNAndSkImageFilterN__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject?,typed_data|Float32List?,_interceptors|JavaScriptObject?,core|int?)")))(),
    SkParagraphAnddoubleAnddoubleTovoid: () => (T$13.SkParagraphAnddoubleAnddoubleTovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|double,core|double)")))(),
    doubleAnddoubleAndSkPlaceholderAlignment__Tovoid: () => (T$13.doubleAnddoubleAndSkPlaceholderAlignment__Tovoid = dart.constFn(dart_rti.findType("~(core|double,core|double,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,core|double)")))(),
    Uint32ListTovoid: () => (T$13.Uint32ListTovoid = dart.constFn(dart_rti.findType("~(typed_data|Uint32List)")))(),
    StringToUint16List: () => (T$13.StringToUint16List = dart.constFn(dart_rti.findType("typed_data|Uint16List(core|String)")))(),
    ListOfintAndSkPaintNAndUint8ListNTovoid: () => (T$13.ListOfintAndSkPaintNAndUint8ListNTovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>,_interceptors|JavaScriptObject?,typed_data|Uint8List?)")))(),
    doubleToStringN: () => (T$13.doubleToStringN = dart.constFn(dart_rti.findType("core|String?(core|double)")))(),
    SkTypefaceN: () => (T$13.SkTypefaceN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    Uint8ListToSkTypefaceN: () => (T$13.Uint8ListToSkTypefaceN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(typed_data|Uint8List)")))(),
    Uint8ListAndStringTovoid: () => (T$13.Uint8ListAndStringTovoid = dart.constFn(dart_rti.findType("~(typed_data|Uint8List,core|String)")))(),
    SkTextRange: () => (T$13.SkTextRange = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToListOfSkLineMetrics: () => (T$13.VoidToListOfSkLineMetrics = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject>()")))(),
    SkLineMetricsN: () => (T$13.SkLineMetricsN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    doubleToSkLineMetricsN: () => (T$13.doubleToSkLineMetricsN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|double)")))(),
    SkRectWithDirection: () => (T$13.SkRectWithDirection = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    doubleAnddoubleAndSkRectHeightStyle__ToListOfSkRectWithDirection: () => (T$13.doubleAnddoubleAndSkRectHeightStyle__ToListOfSkRectWithDirection = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject>(core|double,core|double,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject)")))(),
    VoidToListOfSkRectWithDirection: () => (T$13.VoidToListOfSkRectWithDirection = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject>()")))(),
    SkTextPosition: () => (T$13.SkTextPosition = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    doubleAnddoubleToSkTextPosition: () => (T$13.doubleAnddoubleToSkTextPosition = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|double,core|double)")))(),
    doubleToGlyphInfoN: () => (T$13.doubleToGlyphInfoN = dart.constFn(dart_rti.findType("ui|GlyphInfo?(core|double)")))(),
    SkGlyphClusterInfoN: () => (T$13.SkGlyphClusterInfoN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    doubleAnddoubleToGlyphInfoN: () => (T$13.doubleAnddoubleToGlyphInfoN = dart.constFn(dart_rti.findType("ui|GlyphInfo?(core|double,core|double)")))(),
    doubleToSkTextRange: () => (T$13.doubleToSkTextRange = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|double)")))(),
    SkFontMgrN: () => (T$13.SkFontMgrN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    ListOfUint8ListToSkFontMgrN: () => (T$13.ListOfUint8ListToSkFontMgrN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|List<typed_data|Uint8List>)")))(),
    ByteBufferToSkTypefaceN: () => (T$13.ByteBufferToSkTypefaceN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(typed_data|ByteBuffer)")))(),
    SkImageInfo: () => (T$13.SkImageInfo = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    doubleAnddoubleToSkImageInfo: () => (T$13.doubleAnddoubleToSkImageInfo = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|double,core|double)")))(),
    SkFloat32ListToSkShaderN: () => (T$13.SkFloat32ListToSkShaderN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject)")))(),
    SkFloat32ListAndListOfObjectNToSkShaderN: () => (T$13.SkFloat32ListAndListOfObjectNToSkShaderN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(_interceptors|JavaScriptObject,core|List<core|Object?>)")))(),
    CanvasKitModule: () => (T$13.CanvasKitModule = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    HttpFetchError: () => (T$13.HttpFetchError = dart.constFn(dart_rti.findType("_engine|HttpFetchError")))(),
    NativeUint8ListTovoid: () => (T$13.NativeUint8ListTovoid = dart.constFn(dart_rti.findType("~(_native_typed_data|NativeUint8List)")))(),
    StringToLruCacheNOfString$RecOf__: () => (T$13.StringToLruCacheNOfString$RecOf__ = dart.constFn(dart_rti.findType("_engine|LruCache<core|String,+breaks,graphemes,words(typed_data|Uint32List,typed_data|Uint32List,typed_data|Uint32List)>?(core|String)")))(),
    SkAffinity: () => (T$13.SkAffinity = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTonalColors: () => (T$13.SkTonalColors = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringToFutureOfObjectN: () => (T$13.StringToFutureOfObjectN = dart.constFn(dart_rti.findType("async|Future<core|Object?>(core|String)")))(),
    StringNToDomMediaQueryList: () => (T$13.StringNToDomMediaQueryList = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String?)")))(),
    DomElementAndStringNToDomCSSStyleDeclaration: () => (T$13.DomElementAndStringNToDomCSSStyleDeclaration = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(_interceptors|JavaScriptObject[core|String?])")))(),
    FnTodouble: () => (T$13.FnTodouble = dart.constFn(dart_rti.findType("core|double(~(core|double))")))(),
    ObjectAndStringAndListNOfDomMessagePortTovoid: () => (T$13.ObjectAndStringAndListNOfDomMessagePortTovoid = dart.constFn(dart_rti.findType("~(core|Object,core|String[core|List<_interceptors|JavaScriptObject>?])")))(),
    JSArrayNOfObjectN: () => (T$13.JSArrayNOfObjectN = dart.constFn(dart_rti.findType("_interceptors|JSArray<core|Object?>?")))(),
    StringToDomElementN: () => (T$13.StringToDomElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|String)")))(),
    StringToIterableOfDomElement: () => (T$13.StringToIterableOfDomElement = dart.constFn(dart_rti.findType("core|Iterable<_interceptors|JavaScriptObject>(core|String)")))(),
    StringAndObjectNToDomElement: () => (T$13.StringAndObjectNToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String[core|Object?])")))(),
    StringAndStringToDomElement: () => (T$13.StringAndStringToDomElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String,core|String)")))(),
    StringToDomText: () => (T$13.StringToDomText = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String)")))(),
    DomEvent: () => (T$13.DomEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringToDomEvent: () => (T$13.StringToDomEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String)")))(),
    intAndintToDomElementN: () => (T$13.intAndintToDomElementN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|int,core|int)")))(),
    StringAndDomEventListenerAndMapOfString$ObjectTovoid: () => (T$13.StringAndDomEventListenerAndMapOfString$ObjectTovoid = dart.constFn(dart_rti.findType("~(core|String,_interceptors|JavaScriptObject,core|Map<core|String,core|Object>)")))(),
    boolNToDomNode: () => (T$13.boolNToDomNode = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|bool?)")))(),
    DomNodeNTobool: () => (T$13.DomNodeNTobool = dart.constFn(dart_rti.findType("core|bool(_interceptors|JavaScriptObject?)")))(),
    __Tovoid$27: () => (T$13.__Tovoid$27 = dart.constFn(dart_rti.findType("~({focusVisible:core|bool?,preventScroll:core|bool?})")))(),
    StringToIterableOfDomNode: () => (T$13.StringToIterableOfDomNode = dart.constFn(dart_rti.findType("core|Iterable<_interceptors|JavaScriptObject>(core|String)")))(),
    MapOfObjectN$ObjectNToDomShadowRoot: () => (T$13.MapOfObjectN$ObjectNToDomShadowRoot = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|Map<core|Object?,core|Object?>)")))(),
    StringAndStringAndStringNTovoid: () => (T$13.StringAndStringAndStringNTovoid = dart.constFn(dart_rti.findType("~(core|String,core|String[core|String?])")))(),
    DomHTMLMetaElement: () => (T$13.DomHTMLMetaElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToFutureOfObjectN: () => (T$13.VoidToFutureOfObjectN = dart.constFn(dart_rti.findType("async|Future<core|Object?>()")))(),
    DomHTMLScriptElement: () => (T$13.DomHTMLScriptElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHTMLDivElement: () => (T$13.DomHTMLDivElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHTMLSpanElement: () => (T$13.DomHTMLSpanElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHTMLButtonElement: () => (T$13.DomHTMLButtonElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHTMLParagraphElement: () => (T$13.DomHTMLParagraphElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHTMLStyleElement: () => (T$13.DomHTMLStyleElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomPerformanceEntryN: () => (T$13.DomPerformanceEntryN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    StringToDomPerformanceEntryN: () => (T$13.StringToDomPerformanceEntryN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|String)")))(),
    DomPerformanceMeasureN: () => (T$13.DomPerformanceMeasureN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    StringAndStringNAndStringNToDomPerformanceMeasureN: () => (T$13.StringAndStringNAndStringNToDomPerformanceMeasureN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|String,core|String?,core|String?)")))(),
    WebGLContext: () => (T$13.WebGLContext = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    intToWebGLContext: () => (T$13.intToWebGLContext = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|int)")))(),
    DomCanvasGradient: () => (T$13.DomCanvasGradient = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    numAndnumAndnum__ToDomCanvasGradient: () => (T$13.numAndnumAndnum__ToDomCanvasGradient = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|num,core|num,core|num,core|num)")))(),
    DomCanvasPatternN: () => (T$13.DomCanvasPatternN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    ObjectAndStringToDomCanvasPatternN: () => (T$13.ObjectAndStringToDomCanvasPatternN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?(core|Object,core|String)")))(),
    numAndnumAndnum__ToDomCanvasGradient$1: () => (T$13.numAndnumAndnum__ToDomCanvasGradient$1 = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|num,core|num,core|num,core|num,core|num,core|num)")))(),
    DomCanvasImageSourceAndnumAndnum__Tovoid: () => (T$13.DomCanvasImageSourceAndnumAndnum__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject,core|num,core|num[core|num?,core|num?,core|num?,core|num?,core|num?,core|num?])")))(),
    intAndintAndint__ToDomImageData: () => (T$13.intAndintAndint__ToDomImageData = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|int,core|int,core|int,core|int)")))(),
    DomImageData: () => (T$13.DomImageData = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomTextMetrics: () => (T$13.DomTextMetrics = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringAndnumAndnumTovoid: () => (T$13.StringAndnumAndnumTovoid = dart.constFn(dart_rti.findType("~(core|String,core|num,core|num)")))(),
    _DomStreamChunk: () => (T$13._DomStreamChunk = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToFutureOf_DomStreamChunk: () => (T$13.VoidToFutureOf_DomStreamChunk = dart.constFn(dart_rti.findType("async|Future<_interceptors|JavaScriptObject>()")))(),
    VoidToFutureOfDomFontFace: () => (T$13.VoidToFutureOfDomFontFace = dart.constFn(dart_rti.findType("async|Future<_interceptors|JavaScriptObject>()")))(),
    FnTovoid$49: () => (T$13.FnTovoid$49 = dart.constFn(dart_rti.findType("~(~(_interceptors|JavaScriptObject,_interceptors|JavaScriptObject,_interceptors|JavaScriptObject))")))(),
    ObjectNAndStringAndStringNTovoid: () => (T$13.ObjectNAndStringAndStringNTovoid = dart.constFn(dart_rti.findType("~(core|Object?,core|String,core|String?)")))(),
    DomMutationObserver: () => (T$13.DomMutationObserver = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomNode__Tovoid: () => (T$13.DomNode__Tovoid = dart.constFn(dart_rti.findType("~(_interceptors|JavaScriptObject{attributeFilter:core|List<core|String>?,attributes:core|bool?,childList:core|bool?})")))(),
    _DomListN: () => (T$13._DomListN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    DomPath2D: () => (T$13.DomPath2D = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomInputEvent: () => (T$13.DomInputEvent = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToListOfDomPointerEvent: () => (T$13.VoidToListOfDomPointerEvent = dart.constFn(dart_rti.findType("core|List<_interceptors|JavaScriptObject>()")))(),
    DomTouch: () => (T$13.DomTouch = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHTMLLabelElement: () => (T$13.DomHTMLLabelElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    MapNOfObjectN$ObjectNToFutureOfDomBlob: () => (T$13.MapNOfObjectN$ObjectNToFutureOfDomBlob = dart.constFn(dart_rti.findType("async|Future<_interceptors|JavaScriptObject>([core|Map<core|Object?,core|Object?>?])")))(),
    VoidToDomImageBitmap: () => (T$13.VoidToDomImageBitmap = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject()")))(),
    DomOffscreenCanvas: () => (T$13.DomOffscreenCanvas = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomFileReader: () => (T$13.DomFileReader = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomCSSRule: () => (T$13.DomCSSRule = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringAndintNTodouble: () => (T$13.StringAndintNTodouble = dart.constFn(dart_rti.findType("core|double(core|String[core|int?])")))(),
    DomWebSocket: () => (T$13.DomWebSocket = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomMessageEventSource: () => (T$13.DomMessageEventSource = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomMessagePort: () => (T$13.DomMessagePort = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomHTMLIFrameElement: () => (T$13.DomHTMLIFrameElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomResizeObserverEntry: () => (T$13.DomResizeObserverEntry = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    JSArrayOfObjectNAndDomResizeObserverToNull: () => (T$13.JSArrayOfObjectNAndDomResizeObserverToNull = dart.constFn(dart_rti.findType("core|Null(_interceptors|JSArray<core|Object?>,_interceptors|JavaScriptObject)")))(),
    DomResizeObserver: () => (T$13.DomResizeObserver = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomTrustedScriptURL: () => (T$13.DomTrustedScriptURL = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringToDomTrustedScriptURL: () => (T$13.StringToDomTrustedScriptURL = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String)")))(),
    DomTrustedTypePolicyFactoryN: () => (T$13.DomTrustedTypePolicyFactoryN = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject?")))(),
    DomMessageChannel: () => (T$13.DomMessageChannel = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    intToDomNode: () => (T$13.intToDomNode = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|int)")))(),
    DomSegments: () => (T$13.DomSegments = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringToDomSegments: () => (T$13.StringToDomSegments = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject(core|String)")))(),
    DomSegment: () => (T$13.DomSegment = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    VoidToDomIteratorWrapperOfDomSegment: () => (T$13.VoidToDomIteratorWrapperOfDomSegment = dart.constFn(dart_rti.findType("_engine|DomIteratorWrapper<_interceptors|JavaScriptObject>()")))(),
    DomSegmenter: () => (T$13.DomSegmenter = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    FontFamily: () => (T$13.FontFamily = dart.constFn(dart_rti.findType("_engine|FontFamily")))(),
    FontAsset: () => (T$13.FontAsset = dart.constFn(dart_rti.findType("_engine|FontAsset")))(),
    dynamicToFontAsset: () => (T$13.dynamicToFontAsset = dart.constFn(dart_rti.findType("_engine|FontAsset(@)")))(),
    dynamicToFontFamily: () => (T$13.dynamicToFontFamily = dart.constFn(dart_rti.findType("_engine|FontFamily(@)")))(),
    FontManifest: () => (T$13.FontManifest = dart.constFn(dart_rti.findType("_engine|FontManifest")))(),
    PaintRequestAndPaintRequestToint: () => (T$13.PaintRequestAndPaintRequestToint = dart.constFn(dart_rti.findType("core|int(_engine|PaintRequest,_engine|PaintRequest)")))(),
    PaintRequest: () => (T$13.PaintRequest = dart.constFn(dart_rti.findType("_engine|PaintRequest")))(),
    FrameReference: () => (T$13.FrameReference = dart.constFn(dart_rti.findType("_engine|FrameReference<@>")))(),
    PersistedSurfaceStateN: () => (T$13.PersistedSurfaceStateN = dart.constFn(dart_rti.findType("_engine|PersistedSurfaceState?")))(),
    VoidToDebugSurfaceStats: () => (T$13.VoidToDebugSurfaceStats = dart.constFn(dart_rti.findType("_engine|DebugSurfaceStats()")))(),
    DomCanvas: () => (T$13.DomCanvas = dart.constFn(dart_rti.findType("_engine|DomCanvas")))(),
    DomCanvasElementToint: () => (T$13.DomCanvasElementToint = dart.constFn(dart_rti.findType("core|int(_interceptors|JavaScriptObject)")))(),
    JSUint8Array1: () => (T$13.JSUint8Array1 = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    ObjectToJSObject: () => (T$13.ObjectToJSObject = dart.constFn(dart_rti.findType("_interceptors|JSObject(core|Object)")))(),
    SVGClipPathElement: () => (T$13.SVGClipPathElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGDefsElement: () => (T$13.SVGDefsElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGPathElement: () => (T$13.SVGPathElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGFEColorMatrixElement: () => (T$13.SVGFEColorMatrixElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGFEFloodElement: () => (T$13.SVGFEFloodElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGFEBlendElement: () => (T$13.SVGFEBlendElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGFEImageElement: () => (T$13.SVGFEImageElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SVGFECompositeElement: () => (T$13.SVGFECompositeElement = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    LineCharProperty: () => (T$13.LineCharProperty = dart.constFn(dart_rti.findType("_web_unicode|LineCharProperty")))(),
    LineBreakTypeAndintTovoid: () => (T$13.LineBreakTypeAndintTovoid = dart.constFn(dart_rti.findType("~(_engine|LineBreakType,core|int)")))(),
    DomTokenList: () => (T$13.DomTokenList = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    StringAndDomHTMLFormElementTovoid: () => (T$13.StringAndDomHTMLFormElementTovoid = dart.constFn(dart_rti.findType("~(core|String,_interceptors|JavaScriptObject)")))(),
    StringToMapOfString$dynamic: () => (T$13.StringToMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>(core|String)")))(),
    StringToMapNOfString$dynamic: () => (T$13.StringToMapNOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>?(core|String)")))(),
    StringToMap: () => (T$13.StringToMap = dart.constFn(dart_rti.findType("core|Map<@,@>(core|String)")))(),
    StringToList: () => (T$13.StringToList = dart.constFn(dart_rti.findType("core|List<@>(core|String)")))(),
    StringToListN: () => (T$13.StringToListN = dart.constFn(dart_rti.findType("core|List<@>?(core|String)")))(),
    StringToListOfT: () => (T$13.StringToListOfT = dart.constFn(dart_rti.findType("core|List<0^>(core|String)<core|Object?>")))(),
    StringToListNOfT: () => (T$13.StringToListNOfT = dart.constFn(dart_rti.findType("core|List<0^>?(core|String)<core|Object?>")))(),
    StringToboolN: () => (T$13.StringToboolN = dart.constFn(dart_rti.findType("core|bool?(core|String)")))(),
    StringTointN: () => (T$13.StringTointN = dart.constFn(dart_rti.findType("core|int?(core|String)")))(),
    SkClipOp: () => (T$13.SkClipOp = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkClipOpEnum: () => (T$13.SkClipOpEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFontSlant: () => (T$13.SkFontSlant = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFontSlantEnum: () => (T$13.SkFontSlantEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFontWeight: () => (T$13.SkFontWeight = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFontWeightEnum: () => (T$13.SkFontWeightEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkAffinityEnum: () => (T$13.SkAffinityEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextDirectionEnum: () => (T$13.SkTextDirectionEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextAlign: () => (T$13.SkTextAlign = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextAlignEnum: () => (T$13.SkTextAlignEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextHeightBehavior: () => (T$13.SkTextHeightBehavior = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextHeightBehaviorEnum: () => (T$13.SkTextHeightBehaviorEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkRectHeightStyle: () => (T$13.SkRectHeightStyle = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkRectHeightStyleEnum: () => (T$13.SkRectHeightStyleEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkRectWidthStyle: () => (T$13.SkRectWidthStyle = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkRectWidthStyleEnum: () => (T$13.SkRectWidthStyleEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkVertexModeEnum: () => (T$13.SkVertexModeEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkPointMode: () => (T$13.SkPointMode = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkPointModeEnum: () => (T$13.SkPointModeEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFillType: () => (T$13.SkFillType = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkFillTypeEnum: () => (T$13.SkFillTypeEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkPathOp: () => (T$13.SkPathOp = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkPathOpEnum: () => (T$13.SkPathOpEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkBlurStyle: () => (T$13.SkBlurStyle = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkBlurStyleEnum: () => (T$13.SkBlurStyleEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkStrokeCap: () => (T$13.SkStrokeCap = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkStrokeCapEnum: () => (T$13.SkStrokeCapEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkPaintStyle: () => (T$13.SkPaintStyle = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkPaintStyleEnum: () => (T$13.SkPaintStyleEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkBlendMode: () => (T$13.SkBlendMode = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkBlendModeEnum: () => (T$13.SkBlendModeEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkStrokeJoin: () => (T$13.SkStrokeJoin = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkStrokeJoinEnum: () => (T$13.SkStrokeJoinEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTileMode: () => (T$13.SkTileMode = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTileModeEnum: () => (T$13.SkTileModeEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    CkFilterOptions: () => (T$13.CkFilterOptions = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextDecorationStyle: () => (T$13.SkTextDecorationStyle = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextDecorationStyleEnum: () => (T$13.SkTextDecorationStyleEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkTextBaselineEnum: () => (T$13.SkTextBaselineEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    SkPlaceholderAlignmentEnum: () => (T$13.SkPlaceholderAlignmentEnum = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DomFinalizationRegistry: () => (T$13.DomFinalizationRegistry = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    RecOf__$4: () => (T$13.RecOf__$4 = dart.constFn(dart_rti.findType("+breaks,graphemes,words(typed_data|Uint32List,typed_data|Uint32List,typed_data|Uint32List)")))(),
    DomTrustedTypePolicy: () => (T$13.DomTrustedTypePolicy = dart.constFn(dart_rti.findType("_interceptors|JavaScriptObject")))(),
    DebugSurfaceStats: () => (T$13.DebugSurfaceStats = dart.constFn(dart_rti.findType("_engine|DebugSurfaceStats")))(),
    MapOfPersistedSurface$DebugSurfaceStats: () => (T$13.MapOfPersistedSurface$DebugSurfaceStats = dart.constFn(dart_rti.findType("core|Map<_engine|PersistedSurface,_engine|DebugSurfaceStats>")))(),
    ListLOfintN: () => (T$13.ListLOfintN = dart.constFn(dart_rti.findType("core|List<core|int?>*")))(),
    _LogMessage: () => (T$13._LogMessage = dart.constFn(dart_rti.findType("_engine|_LogMessage")))(),
    UnicodeRangeOfTextDirectionL: () => (T$13.UnicodeRangeOfTextDirectionL = dart.constFn(dart_rti.findType("_engine|UnicodeRange<ui|TextDirection*>")))(),
    UnicodeRangeOfTextDirection: () => (T$13.UnicodeRangeOfTextDirection = dart.constFn(dart_rti.findType("_engine|UnicodeRange<ui|TextDirection>")))(),
    WordCharProperty: () => (T$13.WordCharProperty = dart.constFn(dart_rti.findType("_web_unicode|WordCharProperty")))(),
    VoidToHotRestartCacheHandlerN: () => (T$13.VoidToHotRestartCacheHandlerN = dart.constFn(dart_rti.findType("_engine|HotRestartCacheHandler?()")))(),
    FlutterFontCollection: () => (T$13.FlutterFontCollection = dart.constFn(dart_rti.findType("_engine|FlutterFontCollection")))(),
    Object__ToImage: () => (T$13.Object__ToImage = dart.constFn(dart_rti.findType("ui|Image(core|Object{height!core|int,transferOwnership!core|bool,width!core|int})")))(),
    ListOfLineCharProperty: () => (T$13.ListOfLineCharProperty = dart.constFn(dart_rti.findType("core|List<_web_unicode|LineCharProperty>")))(),
    LineCharPropertyL: () => (T$13.LineCharPropertyL = dart.constFn(dart_rti.findType("_web_unicode|LineCharProperty*")))(),
    ListOfWordCharProperty: () => (T$13.ListOfWordCharProperty = dart.constFn(dart_rti.findType("core|List<_web_unicode|WordCharProperty>")))(),
    WordCharPropertyL: () => (T$13.WordCharPropertyL = dart.constFn(dart_rti.findType("_web_unicode|WordCharProperty*")))(),
    MapEntryOfint$String: () => (T$13.MapEntryOfint$String = dart.constFn(dart_rti.findType("core|MapEntry<core|int,core|String>")))(),
    MapEntryOfString$StringToMapEntryOfint$String: () => (T$13.MapEntryOfString$StringToMapEntryOfint$String = dart.constFn(dart_rti.findType("core|MapEntry<core|int,core|String>(core|MapEntry<core|String,core|String>)")))(),
    StringNAndStringNAndintTointN: () => (T$13.StringNAndStringNAndintTointN = dart.constFn(dart_rti.findType("core|int?(core|String?,core|String?,core|int)")))(),
    MapOfString$MapOfString$int: () => (T$13.MapOfString$MapOfString$int = dart.constFn(dart_rti.findType("core|Map<core|String,core|Map<core|String,core|int>>")))(),
    dynamicAndint__ToFutureOfHttpServer: () => (T$13.dynamicAndint__ToFutureOfHttpServer = dart.constFn(dart_rti.findType("async|Future<_http|HttpServer>(@,core|int{backlog:core|int,shared:core|bool,v6Only:core|bool})")))(),
    dynamicAndintAndSecurityContext__ToFutureOfHttpServer: () => (T$13.dynamicAndintAndSecurityContext__ToFutureOfHttpServer = dart.constFn(dart_rti.findType("async|Future<_http|HttpServer>(@,core|int,io|SecurityContext{backlog:core|int,requestClientCertificate:core|bool,shared:core|bool,v6Only:core|bool})")))(),
    ServerSocketToHttpServer: () => (T$13.ServerSocketToHttpServer = dart.constFn(dart_rti.findType("_http|HttpServer(io|ServerSocket)")))(),
    ContentTypeN: () => (T$13.ContentTypeN = dart.constFn(dart_rti.findType("_http|ContentType?")))(),
    StringAndMapOfString$StringNToHeaderValue: () => (T$13.StringAndMapOfString$StringNToHeaderValue = dart.constFn(dart_rti.findType("_http|HeaderValue([core|String,core|Map<core|String,core|String?>])")))(),
    String__ToHeaderValue: () => (T$13.String__ToHeaderValue = dart.constFn(dart_rti.findType("_http|HeaderValue(core|String{parameterSeparator:core|String,preserveBackslash:core|bool,valueSeparator:core|String?})")))(),
    StringAndString__ToContentType: () => (T$13.StringAndString__ToContentType = dart.constFn(dart_rti.findType("_http|ContentType(core|String,core|String{charset:core|String?,parameters:core|Map<core|String,core|String?>})")))(),
    StringToContentType: () => (T$13.StringToContentType = dart.constFn(dart_rti.findType("_http|ContentType(core|String)")))(),
    ContentType: () => (T$13.ContentType = dart.constFn(dart_rti.findType("_http|ContentType")))(),
    SameSite: () => (T$13.SameSite = dart.constFn(dart_rti.findType("_http|SameSite")))(),
    ListOfSameSite: () => (T$13.ListOfSameSite = dart.constFn(dart_rti.findType("core|List<_http|SameSite>")))(),
    SameSiteL: () => (T$13.SameSiteL = dart.constFn(dart_rti.findType("_http|SameSite*")))(),
    StringAndStringToCookie: () => (T$13.StringAndStringToCookie = dart.constFn(dart_rti.findType("_http|Cookie(core|String,core|String)")))(),
    StringToCookie: () => (T$13.StringToCookie = dart.constFn(dart_rti.findType("_http|Cookie(core|String)")))(),
    SameSiteN: () => (T$13.SameSiteN = dart.constFn(dart_rti.findType("_http|SameSite?")))(),
    __ToHttpClient: () => (T$13.__ToHttpClient = dart.constFn(dart_rti.findType("_http|HttpClient({context:io|SecurityContext?})")))(),
    Uri__ToString: () => (T$13.Uri__ToString = dart.constFn(dart_rti.findType("core|String(core|Uri{environment:core|Map<core|String,core|String>?})")))(),
    ListOfHttpClientResponseCompressionState: () => (T$13.ListOfHttpClientResponseCompressionState = dart.constFn(dart_rti.findType("core|List<_http|HttpClientResponseCompressionState>")))(),
    HttpClientResponseCompressionState: () => (T$13.HttpClientResponseCompressionState = dart.constFn(dart_rti.findType("_http|HttpClientResponseCompressionState")))(),
    HttpClientResponseCompressionStateL: () => (T$13.HttpClientResponseCompressionStateL = dart.constFn(dart_rti.findType("_http|HttpClientResponseCompressionState*")))(),
    StringAndStringToHttpClientBasicCredentials: () => (T$13.StringAndStringToHttpClientBasicCredentials = dart.constFn(dart_rti.findType("_http|HttpClientBasicCredentials(core|String,core|String)")))(),
    StringAndStringToHttpClientDigestCredentials: () => (T$13.StringAndStringToHttpClientDigestCredentials = dart.constFn(dart_rti.findType("_http|HttpClientDigestCredentials(core|String,core|String)")))(),
    ListOfRedirectInfo: () => (T$13.ListOfRedirectInfo = dart.constFn(dart_rti.findType("core|List<_http|RedirectInfo>")))(),
    VoidToListOfint: () => (T$13.VoidToListOfint = dart.constFn(dart_rti.findType("core|List<core|int>()")))(),
    ListOfintAndintTovoid: () => (T$13.ListOfintAndintTovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>,core|int)")))(),
    intToListOfint: () => (T$13.intToListOfint = dart.constFn(dart_rti.findType("core|List<core|int>(core|int)")))(),
    Cookie: () => (T$13.Cookie = dart.constFn(dart_rti.findType("_http|Cookie")))(),
    StringToListNOfString: () => (T$13.StringToListNOfString = dart.constFn(dart_rti.findType("core|List<core|String>?(core|String)")))(),
    StringAndObject__Tovoid: () => (T$13.StringAndObject__Tovoid = dart.constFn(dart_rti.findType("~(core|String,core|Object{preserveHeaderCase:core|bool})")))(),
    FnTovoid$50: () => (T$13.FnTovoid$50 = dart.constFn(dart_rti.findType("~(~(core|String,core|List<core|String>))")))(),
    BytesBuilder__Tovoid: () => (T$13.BytesBuilder__Tovoid = dart.constFn(dart_rti.findType("~(_internal|BytesBuilder{skipZeroContentLength:core|bool})")))(),
    VoidToListOfCookie: () => (T$13.VoidToListOfCookie = dart.constFn(dart_rti.findType("core|List<_http|Cookie>()")))(),
    _ContentType: () => (T$13._ContentType = dart.constFn(dart_rti.findType("_http|_ContentType")))(),
    String__To_HeaderValue: () => (T$13.String__To_HeaderValue = dart.constFn(dart_rti.findType("_http|_HeaderValue(core|String{parameterSeparator:core|String,preserveBackslash:core|bool,valueSeparator:core|String?})")))(),
    VoidToMapOfString$StringN: () => (T$13.VoidToMapOfString$StringN = dart.constFn(dart_rti.findType("core|Map<core|String,core|String?>()")))(),
    MapOfString$StringN: () => (T$13.MapOfString$StringN = dart.constFn(dart_rti.findType("core|Map<core|String,core|String?>")))(),
    StringAndStringAndStringN__Tovoid: () => (T$13.StringAndStringAndStringN__Tovoid = dart.constFn(dart_rti.findType("~(core|String,core|String,core|String?,core|bool)")))(),
    MapNOfString$StringN: () => (T$13.MapNOfString$StringN = dart.constFn(dart_rti.findType("core|Map<core|String,core|String?>?")))(),
    StringTo_ContentType: () => (T$13.StringTo_ContentType = dart.constFn(dart_rti.findType("_http|_ContentType(core|String)")))(),
    _HttpProfileDataTobool: () => (T$13._HttpProfileDataTobool = dart.constFn(dart_rti.findType("core|bool(_http|_HttpProfileData)")))(),
    _HttpProfileDataToMapOfString$dynamic: () => (T$13._HttpProfileDataToMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>(_http|_HttpProfileData)")))(),
    StringAndUri__To_HttpProfileDataN: () => (T$13.StringAndUri__To_HttpProfileDataN = dart.constFn(dart_rti.findType("_http|_HttpProfileData?(core|String,core|Uri{parentRequest:_http|_HttpProfileData?})")))(),
    StringTo_HttpProfileDataN: () => (T$13.StringTo_HttpProfileDataN = dart.constFn(dart_rti.findType("_http|_HttpProfileData?(core|String)")))(),
    intNToListOfMapOfString$dynamic: () => (T$13.intNToListOfMapOfString$dynamic = dart.constFn(dart_rti.findType("core|List<core|Map<core|String,@>>(core|int?)")))(),
    MapOfString$_HttpProfileData: () => (T$13.MapOfString$_HttpProfileData = dart.constFn(dart_rti.findType("core|Map<core|String,_http|_HttpProfileData>")))(),
    _HttpProfileData: () => (T$13._HttpProfileData = dart.constFn(dart_rti.findType("_http|_HttpProfileData")))(),
    _HttpProfileEvent: () => (T$13._HttpProfileEvent = dart.constFn(dart_rti.findType("_http|_HttpProfileEvent")))(),
    VoidToListOfMapOfString$dynamic: () => (T$13.VoidToListOfMapOfString$dynamic = dart.constFn(dart_rti.findType("core|List<core|Map<core|String,@>>()")))(),
    _ProxyTovoid: () => (T$13._ProxyTovoid = dart.constFn(dart_rti.findType("~(_http|_Proxy)")))(),
    HttpHeadersToMap: () => (T$13.HttpHeadersToMap = dart.constFn(dart_rti.findType("core|Map<@,@>(_http|HttpHeaders)")))(),
    HttpConnectionInfoNToMapN: () => (T$13.HttpConnectionInfoNToMapN = dart.constFn(dart_rti.findType("core|Map<@,@>?(_http|HttpConnectionInfo?)")))(),
    __Tovoid$28: () => (T$13.__Tovoid$28 = dart.constFn(dart_rti.findType("~({request!_http|HttpClientRequest})")))(),
    __Tovoid$29: () => (T$13.__Tovoid$29 = dart.constFn(dart_rti.findType("~({response!_http|HttpClientResponse})")))(),
    __ToMapOfString$dynamic: () => (T$13.__ToMapOfString$dynamic = dart.constFn(dart_rti.findType("core|Map<core|String,@>({ref!core|bool})")))(),
    TimelineTask: () => (T$13.TimelineTask = dart.constFn(dart_rti.findType("developer|TimelineTask")))(),
    ListOf_HttpProfileEvent: () => (T$13.ListOf_HttpProfileEvent = dart.constFn(dart_rti.findType("core|List<_http|_HttpProfileEvent>")))(),
    _HttpIncoming: () => (T$13._HttpIncoming = dart.constFn(dart_rti.findType("_http|_HttpIncoming")))(),
    HttpException: () => (T$13.HttpException = dart.constFn(dart_rti.findType("_http|HttpException")))(),
    CompleterOfbool: () => (T$13.CompleterOfbool = dart.constFn(dart_rti.findType("async|Completer<core|bool>")))(),
    StreamOfUint8List: () => (T$13.StreamOfUint8List = dart.constFn(dart_rti.findType("async|Stream<typed_data|Uint8List>")))(),
    _HttpHeaders: () => (T$13._HttpHeaders = dart.constFn(dart_rti.findType("_http|_HttpHeaders")))(),
    _HttpInboundMessageListInt: () => (T$13._HttpInboundMessageListInt = dart.constFn(dart_rti.findType("_http|_HttpInboundMessageListInt")))(),
    ListOfCookie: () => (T$13.ListOfCookie = dart.constFn(dart_rti.findType("core|List<_http|Cookie>")))(),
    ListNOfCookie: () => (T$13.ListNOfCookie = dart.constFn(dart_rti.findType("core|List<_http|Cookie>?")))(),
    _HttpInboundMessage: () => (T$13._HttpInboundMessage = dart.constFn(dart_rti.findType("_http|_HttpInboundMessage")))(),
    _HttpRequest: () => (T$13._HttpRequest = dart.constFn(dart_rti.findType("_http|_HttpRequest")))(),
    CookieTobool: () => (T$13.CookieTobool = dart.constFn(dart_rti.findType("core|bool(_http|Cookie)")))(),
    CookieToString: () => (T$13.CookieToString = dart.constFn(dart_rti.findType("core|String(_http|Cookie)")))(),
    HttpSession: () => (T$13.HttpSession = dart.constFn(dart_rti.findType("_http|HttpSession")))(),
    HttpConnectionInfoN: () => (T$13.HttpConnectionInfoN = dart.constFn(dart_rti.findType("_http|HttpConnectionInfo?")))(),
    HttpResponse: () => (T$13.HttpResponse = dart.constFn(dart_rti.findType("_http|HttpResponse")))(),
    _HttpServer: () => (T$13._HttpServer = dart.constFn(dart_rti.findType("_http|_HttpServer")))(),
    _HttpConnection: () => (T$13._HttpConnection = dart.constFn(dart_rti.findType("_http|_HttpConnection")))(),
    _HttpSessionN: () => (T$13._HttpSessionN = dart.constFn(dart_rti.findType("_http|_HttpSession?")))(),
    _HttpClientResponse: () => (T$13._HttpClientResponse = dart.constFn(dart_rti.findType("_http|_HttpClientResponse")))(),
    HttpClientResponse: () => (T$13.HttpClientResponse = dart.constFn(dart_rti.findType("_http|HttpClientResponse")))(),
    _HttpClientRequestToFutureOfHttpClientResponse: () => (T$13._HttpClientRequestToFutureOfHttpClientResponse = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientResponse>(_http|_HttpClientRequest)")))(),
    dynamicToFutureOfHttpClientResponse: () => (T$13.dynamicToFutureOfHttpClientResponse = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientResponse>(@)")))(),
    VoidToFutureOfHttpClientResponse: () => (T$13.VoidToFutureOfHttpClientResponse = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientResponse>()")))(),
    _AuthenticationSchemeTo_CredentialsN: () => (T$13._AuthenticationSchemeTo_CredentialsN = dart.constFn(dart_rti.findType("_http|_Credentials?(_http|_AuthenticationScheme)")))(),
    _CredentialsTovoid: () => (T$13._CredentialsTovoid = dart.constFn(dart_rti.findType("~(_http|_Credentials)")))(),
    _AuthenticationSchemeAndStringNToFutureOfbool: () => (T$13._AuthenticationSchemeAndStringNToFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(_http|_AuthenticationScheme,core|String?)")))(),
    boolToFutureOrOfHttpClientResponse: () => (T$13.boolToFutureOrOfHttpClientResponse = dart.constFn(dart_rti.findType("_http|HttpClientResponse/(core|bool)")))(),
    _HttpClientAnd_HttpHeadersToHttpClientResponseCompressionState: () => (T$13._HttpClientAnd_HttpHeadersToHttpClientResponseCompressionState = dart.constFn(dart_rti.findType("_http|HttpClientResponseCompressionState(_http|_HttpClient,_http|_HttpHeaders)")))(),
    StringNAndUriNAndboolNToFutureOfHttpClientResponse: () => (T$13.StringNAndUriNAndboolNToFutureOfHttpClientResponse = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientResponse>([core|String?,core|Uri?,core|bool?])")))(),
    VoidToFutureOfSocket: () => (T$13.VoidToFutureOfSocket = dart.constFn(dart_rti.findType("async|Future<io|Socket>()")))(),
    boolToFutureOfHttpClientResponse: () => (T$13.boolToFutureOfHttpClientResponse = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientResponse>(core|bool)")))(),
    _HttpClient: () => (T$13._HttpClient = dart.constFn(dart_rti.findType("_http|_HttpClient")))(),
    _HttpClientRequest: () => (T$13._HttpClientRequest = dart.constFn(dart_rti.findType("_http|_HttpClientRequest")))(),
    _HttpProfileDataN: () => (T$13._HttpProfileDataN = dart.constFn(dart_rti.findType("_http|_HttpProfileData?")))(),
    _ToUint8List: () => (T$13._ToUint8List = dart.constFn(dart_rti.findType("_http|_ToUint8List")))(),
    SinkOfUint8List: () => (T$13.SinkOfUint8List = dart.constFn(dart_rti.findType("core|Sink<typed_data|Uint8List>")))(),
    _IOSinkImpl$1: () => (T$13._IOSinkImpl$1 = dart.constFn(dart_rti.findType("_http|_IOSinkImpl")))(),
    ListOfintToListOfint: () => (T$13.ListOfintToListOfint = dart.constFn(dart_rti.findType("core|List<core|int>(core|List<core|int>)")))(),
    _HttpOutgoing: () => (T$13._HttpOutgoing = dart.constFn(dart_rti.findType("_http|_HttpOutgoing")))(),
    _HttpResponse: () => (T$13._HttpResponse = dart.constFn(dart_rti.findType("_http|_HttpResponse")))(),
    CookieTovoid: () => (T$13.CookieTovoid = dart.constFn(dart_rti.findType("~(_http|Cookie)")))(),
    Uri__ToFuture: () => (T$13.Uri__ToFuture = dart.constFn(dart_rti.findType("async|Future<@>(core|Uri{status:core|int})")))(),
    __ToFutureOfSocket: () => (T$13.__ToFutureOfSocket = dart.constFn(dart_rti.findType("async|Future<io|Socket>({writeHeaders:core|bool})")))(),
    _HttpRequestN: () => (T$13._HttpRequestN = dart.constFn(dart_rti.findType("_http|_HttpRequest?")))(),
    RedirectInfo: () => (T$13.RedirectInfo = dart.constFn(dart_rti.findType("_http|RedirectInfo")))(),
    HttpClientResponseToNull: () => (T$13.HttpClientResponseToNull = dart.constFn(dart_rti.findType("core|Null(_http|HttpClientResponse)")))(),
    FutureOrOfHttpClientResponse: () => (T$13.FutureOrOfHttpClientResponse = dart.constFn(dart_rti.findType("_http|HttpClientResponse/")))(),
    ListToFutureOrOfHttpClientResponse: () => (T$13.ListToFutureOrOfHttpClientResponse = dart.constFn(dart_rti.findType("_http|HttpClientResponse/(core|List<@>)")))(),
    FutureOfHttpClientResponse: () => (T$13.FutureOfHttpClientResponse = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientResponse>")))(),
    _HttpIncomingTovoid: () => (T$13._HttpIncomingTovoid = dart.constFn(dart_rti.findType("~(_http|_HttpIncoming)")))(),
    ObjectNAndStackTraceNTovoid: () => (T$13.ObjectNAndStackTraceNTovoid = dart.constFn(dart_rti.findType("~([core|Object?,core|StackTrace?])")))(),
    _HttpClientConnection: () => (T$13._HttpClientConnection = dart.constFn(dart_rti.findType("_http|_HttpClientConnection")))(),
    CompleterOfHttpClientResponse: () => (T$13.CompleterOfHttpClientResponse = dart.constFn(dart_rti.findType("async|Completer<_http|HttpClientResponse>")))(),
    _Proxy: () => (T$13._Proxy = dart.constFn(dart_rti.findType("_http|_Proxy")))(),
    FutureNOfHttpClientResponse: () => (T$13.FutureNOfHttpClientResponse = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientResponse>?")))(),
    voidToFuture: () => (T$13.voidToFuture = dart.constFn(dart_rti.findType("async|Future<@>(~)")))(),
    dynamicTo_HttpOutboundMessageN: () => (T$13.dynamicTo_HttpOutboundMessageN = dart.constFn(dart_rti.findType("_http|_HttpOutboundMessage<@>?(@)")))(),
    dynamicAnddynamicTo_HttpOutboundMessageN: () => (T$13.dynamicAnddynamicTo_HttpOutboundMessageN = dart.constFn(dart_rti.findType("_http|_HttpOutboundMessage<@>?(@,@)")))(),
    dynamicTo_HttpOutboundMessage: () => (T$13.dynamicTo_HttpOutboundMessage = dart.constFn(dart_rti.findType("_http|_HttpOutboundMessage<@>(@)")))(),
    dynamicAnddynamicTo_HttpOutboundMessage: () => (T$13.dynamicAnddynamicTo_HttpOutboundMessage = dart.constFn(dart_rti.findType("_http|_HttpOutboundMessage<@>(@,@)")))(),
    SocketException: () => (T$13.SocketException = dart.constFn(dart_rti.findType("io|SocketException")))(),
    TlsException: () => (T$13.TlsException = dart.constFn(dart_rti.findType("io|TlsException")))(),
    __ToFutureNOfvoid: () => (T$13.__ToFutureNOfvoid = dart.constFn(dart_rti.findType("async|Future<~>?({drainRequest:core|bool,setOutgoing:core|bool})")))(),
    FutureOfSocket: () => (T$13.FutureOfSocket = dart.constFn(dart_rti.findType("async|Future<io|Socket>")))(),
    ListOfintAndFnTovoid: () => (T$13.ListOfintAndFnTovoid = dart.constFn(dart_rti.findType("~(core|List<core|int>,~(core|List<core|int>))")))(),
    CompleterOfSocket: () => (T$13.CompleterOfSocket = dart.constFn(dart_rti.findType("async|Completer<io|Socket>")))(),
    ByteConversionSinkN: () => (T$13.ByteConversionSinkN = dart.constFn(dart_rti.findType("convert|ByteConversionSink?")))(),
    ListOfintToNvoid: () => (T$13.ListOfintToNvoid = dart.constFn(dart_rti.findType("~(core|List<core|int>)?")))(),
    _HttpOutboundMessageN: () => (T$13._HttpOutboundMessageN = dart.constFn(dart_rti.findType("_http|_HttpOutboundMessage<@>?")))(),
    dynamicAndStackTraceToNull: () => (T$13.dynamicAndStackTraceToNull = dart.constFn(dart_rti.findType("core|Null(@,core|StackTrace)")))(),
    _HttpIncomingToNull: () => (T$13._HttpIncomingToNull = dart.constFn(dart_rti.findType("core|Null(_http|_HttpIncoming)")))(),
    StateError: () => (T$13.StateError = dart.constFn(dart_rti.findType("core|StateError")))(),
    SocketToSocket: () => (T$13.SocketToSocket = dart.constFn(dart_rti.findType("io|Socket(io|Socket)")))(),
    SocketN: () => (T$13.SocketN = dart.constFn(dart_rti.findType("io|Socket?")))(),
    SocketTo_DetachedSocket: () => (T$13.SocketTo_DetachedSocket = dart.constFn(dart_rti.findType("_http|_DetachedSocket(io|Socket)")))(),
    SocketTovoid: () => (T$13.SocketTovoid = dart.constFn(dart_rti.findType("~(io|Socket)")))(),
    HttpClientResponseToFutureOfSecureSocket: () => (T$13.HttpClientResponseToFutureOfSecureSocket = dart.constFn(dart_rti.findType("async|Future<io|SecureSocket>(_http|HttpClientResponse)")))(),
    SecureSocketTo_HttpClientConnection: () => (T$13.SecureSocketTo_HttpClientConnection = dart.constFn(dart_rti.findType("_http|_HttpClientConnection(io|SecureSocket)")))(),
    UriAndintAndString__To_HttpClientRequest: () => (T$13.UriAndintAndString__To_HttpClientRequest = dart.constFn(dart_rti.findType("_http|_HttpClientRequest(core|Uri,core|int,core|String,_http|_Proxy,_http|_HttpProfileData?)")))(),
    StringAndintAnd_Proxy__ToFutureOf_HttpClientConnection: () => (T$13.StringAndintAnd_Proxy__ToFutureOf_HttpClientConnection = dart.constFn(dart_rti.findType("async|Future<_http|_HttpClientConnection>(core|String,core|int,_http|_Proxy,core|bool(io|X509Certificate),_http|_HttpProfileData?)")))(),
    boolAndStringAndintTodynamic: () => (T$13.boolAndStringAndintTodynamic = dart.constFn(dart_rti.findType("@(core|bool,core|String,core|int)")))(),
    _HttpParser: () => (T$13._HttpParser = dart.constFn(dart_rti.findType("_http|_HttpParser")))(),
    StreamSubscriptionN: () => (T$13.StreamSubscriptionN = dart.constFn(dart_rti.findType("async|StreamSubscription<@>?")))(),
    CompleterNOf_HttpIncoming: () => (T$13.CompleterNOf_HttpIncoming = dart.constFn(dart_rti.findType("async|Completer<_http|_HttpIncoming>?")))(),
    FutureNOfSocket: () => (T$13.FutureNOfSocket = dart.constFn(dart_rti.findType("async|Future<io|Socket>?")))(),
    ConnectionTaskOfSocket: () => (T$13.ConnectionTaskOfSocket = dart.constFn(dart_rti.findType("io|ConnectionTask<io|Socket>")))(),
    SocketToNull: () => (T$13.SocketToNull = dart.constFn(dart_rti.findType("core|Null(io|Socket)")))(),
    _ConnectionInfo: () => (T$13._ConnectionInfo = dart.constFn(dart_rti.findType("_http|_ConnectionInfo")))(),
    _HttpClientConnectionTo_ConnectionInfo: () => (T$13._HttpClientConnectionTo_ConnectionInfo = dart.constFn(dart_rti.findType("_http|_ConnectionInfo(_http|_HttpClientConnection)")))(),
    SocketToFutureOrOf_ConnectionInfo: () => (T$13.SocketToFutureOrOf_ConnectionInfo = dart.constFn(dart_rti.findType("_http|_ConnectionInfo/(io|Socket)")))(),
    TimeoutException: () => (T$13.TimeoutException = dart.constFn(dart_rti.findType("async|TimeoutException")))(),
    ConnectionTaskOfSocketToFutureOf_ConnectionInfo: () => (T$13.ConnectionTaskOfSocketToFutureOf_ConnectionInfo = dart.constFn(dart_rti.findType("async|Future<_http|_ConnectionInfo>(io|ConnectionTask<io|Socket>)")))(),
    VoidTo_HttpClientConnection: () => (T$13.VoidTo_HttpClientConnection = dart.constFn(dart_rti.findType("_http|_HttpClientConnection()")))(),
    _HttpClientConnectionTovoid: () => (T$13._HttpClientConnectionTovoid = dart.constFn(dart_rti.findType("~(_http|_HttpClientConnection)")))(),
    UriAndStringAndint__ToFutureOf_ConnectionInfo: () => (T$13.UriAndStringAndint__ToFutureOf_ConnectionInfo = dart.constFn(dart_rti.findType("async|Future<_http|_ConnectionInfo>(core|Uri,core|String,core|int,_http|_Proxy,_http|_HttpClient,_http|_HttpProfileData?)")))(),
    UriAndStringNAndintNToNFutureOfConnectionTaskOfSocket: () => (T$13.UriAndStringNAndintNToNFutureOfConnectionTaskOfSocket = dart.constFn(dart_rti.findType("async|Future<io|ConnectionTask<io|Socket>>(core|Uri,core|String?,core|int?)?")))(),
    SetOf_HttpClientConnection: () => (T$13.SetOf_HttpClientConnection = dart.constFn(dart_rti.findType("core|Set<_http|_HttpClientConnection>")))(),
    SetOfConnectionTaskOfSocket: () => (T$13.SetOfConnectionTaskOfSocket = dart.constFn(dart_rti.findType("core|Set<io|ConnectionTask<io|Socket>>")))(),
    ListQueueOfVoidTovoid: () => (T$13.ListQueueOfVoidTovoid = dart.constFn(dart_rti.findType("collection|ListQueue<~()>")))(),
    _ConnectionTarget: () => (T$13._ConnectionTarget = dart.constFn(dart_rti.findType("_http|_ConnectionTarget")))(),
    _Credentials: () => (T$13._Credentials = dart.constFn(dart_rti.findType("_http|_Credentials")))(),
    _ProxyCredentials: () => (T$13._ProxyCredentials = dart.constFn(dart_rti.findType("_http|_ProxyCredentials")))(),
    _ConnectionTargetTobool: () => (T$13._ConnectionTargetTobool = dart.constFn(dart_rti.findType("core|bool(_http|_ConnectionTarget)")))(),
    _HttpClientCredentials: () => (T$13._HttpClientCredentials = dart.constFn(dart_rti.findType("_http|_HttpClientCredentials")))(),
    _ProxyL: () => (T$13._ProxyL = dart.constFn(dart_rti.findType("_http|_Proxy*")))(),
    _ConnectionInfoTo_HttpClientRequest: () => (T$13._ConnectionInfoTo_HttpClientRequest = dart.constFn(dart_rti.findType("_http|_HttpClientRequest(_http|_ConnectionInfo)")))(),
    _ConnectionInfoToFutureOrOf_HttpClientRequest: () => (T$13._ConnectionInfoToFutureOrOf_HttpClientRequest = dart.constFn(dart_rti.findType("_http|_HttpClientRequest/(_http|_ConnectionInfo)")))(),
    _HttpClientRequestTo_HttpClientRequest: () => (T$13._HttpClientRequestTo_HttpClientRequest = dart.constFn(dart_rti.findType("_http|_HttpClientRequest(_http|_HttpClientRequest)")))(),
    VoidTo_ConnectionTarget: () => (T$13.VoidTo_ConnectionTarget = dart.constFn(dart_rti.findType("_http|_ConnectionTarget()")))(),
    dynamicAnddynamicToFutureOf_ConnectionInfo: () => (T$13.dynamicAnddynamicToFutureOf_ConnectionInfo = dart.constFn(dart_rti.findType("async|Future<_http|_ConnectionInfo>(@,@)")))(),
    _SiteCredentialsN: () => (T$13._SiteCredentialsN = dart.constFn(dart_rti.findType("_http|_SiteCredentials?")))(),
    _SiteCredentials: () => (T$13._SiteCredentials = dart.constFn(dart_rti.findType("_http|_SiteCredentials")))(),
    _SiteCredentialsNAnd_CredentialsTo_SiteCredentialsN: () => (T$13._SiteCredentialsNAnd_CredentialsTo_SiteCredentialsN = dart.constFn(dart_rti.findType("_http|_SiteCredentials?(_http|_SiteCredentials?,_http|_Credentials)")))(),
    X509CertificateAndStringAndintToNbool: () => (T$13.X509CertificateAndStringAndintToNbool = dart.constFn(dart_rti.findType("core|bool(io|X509Certificate,core|String,core|int)?")))(),
    StringToNdynamic: () => (T$13.StringToNdynamic = dart.constFn(dart_rti.findType("@(core|String)?")))(),
    StringAndStringAndint__ToFutureOfHttpClientRequest: () => (T$13.StringAndStringAndint__ToFutureOfHttpClientRequest = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientRequest>(core|String,core|String,core|int,core|String)")))(),
    StringAndUriToFutureOfHttpClientRequest: () => (T$13.StringAndUriToFutureOfHttpClientRequest = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientRequest>(core|String,core|Uri)")))(),
    StringAndintAndStringToFutureOfHttpClientRequest: () => (T$13.StringAndintAndStringToFutureOfHttpClientRequest = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientRequest>(core|String,core|int,core|String)")))(),
    UriToFutureOfHttpClientRequest: () => (T$13.UriToFutureOfHttpClientRequest = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientRequest>(core|Uri)")))(),
    __Tovoid$30: () => (T$13.__Tovoid$30 = dart.constFn(dart_rti.findType("~({force:core|bool})")))(),
    UriAndStringAndStringNToNFutureOfbool: () => (T$13.UriAndStringAndStringNToNFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(core|Uri,core|String,core|String?)?")))(),
    UriAndStringAndHttpClientCredentialsTovoid: () => (T$13.UriAndStringAndHttpClientCredentialsTovoid = dart.constFn(dart_rti.findType("~(core|Uri,core|String,_http|HttpClientCredentials)")))(),
    StringAndintAndString__ToNFutureOfbool: () => (T$13.StringAndintAndString__ToNFutureOfbool = dart.constFn(dart_rti.findType("async|Future<core|bool>(core|String,core|int,core|String,core|String?)?")))(),
    StringAndintAndString__Tovoid: () => (T$13.StringAndintAndString__Tovoid = dart.constFn(dart_rti.findType("~(core|String,core|int,core|String,_http|HttpClientCredentials)")))(),
    UriToNString: () => (T$13.UriToNString = dart.constFn(dart_rti.findType("core|String(core|Uri)?")))(),
    TimelineTaskNAndStringAndUriTovoid: () => (T$13.TimelineTaskNAndStringAndUriTovoid = dart.constFn(dart_rti.findType("~(developer|TimelineTask?,core|String,core|Uri)")))(),
    StringAndUriToFutureOf_HttpClientRequest: () => (T$13.StringAndUriToFutureOf_HttpClientRequest = dart.constFn(dart_rti.findType("async|Future<_http|_HttpClientRequest>(core|String,core|Uri)")))(),
    UriAndUriTobool: () => (T$13.UriAndUriTobool = dart.constFn(dart_rti.findType("core|bool(core|Uri,core|Uri)")))(),
    StringAndUriAndUriTobool: () => (T$13.StringAndUriAndUriTobool = dart.constFn(dart_rti.findType("core|bool(core|String,core|Uri,core|Uri)")))(),
    StringAndUriAnd_HttpClientRequest__ToFutureOf_HttpClientRequest: () => (T$13.StringAndUriAnd_HttpClientRequest__ToFutureOf_HttpClientRequest = dart.constFn(dart_rti.findType("async|Future<_http|_HttpClientRequest>(core|String,core|Uri,_http|_HttpClientRequest{isRedirect!core|bool})")))(),
    StringAndintAndboolTo_ConnectionTarget: () => (T$13.StringAndintAndboolTo_ConnectionTarget = dart.constFn(dart_rti.findType("_http|_ConnectionTarget(core|String,core|int,core|bool)")))(),
    UriAndStringAndint__ToFutureOf_ConnectionInfo$1: () => (T$13.UriAndStringAndint__ToFutureOf_ConnectionInfo$1 = dart.constFn(dart_rti.findType("async|Future<_http|_ConnectionInfo>(core|Uri,core|String,core|int,_http|_ProxyConfiguration,core|bool,_http|_HttpProfileData?)")))(),
    UriAnd_AuthenticationSchemeNTo_SiteCredentialsN: () => (T$13.UriAnd_AuthenticationSchemeNTo_SiteCredentialsN = dart.constFn(dart_rti.findType("_http|_SiteCredentials?(core|Uri[_http|_AuthenticationScheme?])")))(),
    _ProxyAnd_AuthenticationSchemeNTo_ProxyCredentialsN: () => (T$13._ProxyAnd_AuthenticationSchemeNTo_ProxyCredentialsN = dart.constFn(dart_rti.findType("_http|_ProxyCredentials?(_http|_Proxy[_http|_AuthenticationScheme?])")))(),
    UriAndMapNOfString$StringToString: () => (T$13.UriAndMapNOfString$StringToString = dart.constFn(dart_rti.findType("core|String(core|Uri,core|Map<core|String,core|String>?)")))(),
    MapOfString$_ConnectionTarget: () => (T$13.MapOfString$_ConnectionTarget = dart.constFn(dart_rti.findType("core|Map<core|String,_http|_ConnectionTarget>")))(),
    ListOf_Credentials: () => (T$13.ListOf_Credentials = dart.constFn(dart_rti.findType("core|List<_http|_Credentials>")))(),
    ListOf_ProxyCredentials: () => (T$13.ListOf_ProxyCredentials = dart.constFn(dart_rti.findType("core|List<_http|_ProxyCredentials>")))(),
    dynamicTo_DetachedSocket: () => (T$13.dynamicTo_DetachedSocket = dart.constFn(dart_rti.findType("_http|_DetachedSocket(@)")))(),
    MapOfint$_HttpConnection: () => (T$13.MapOfint$_HttpConnection = dart.constFn(dart_rti.findType("core|Map<core|int,_http|_HttpConnection>")))(),
    HttpRequest$1: () => (T$13.HttpRequest$1 = dart.constFn(dart_rti.findType("_http|HttpRequest")))(),
    HttpServer: () => (T$13.HttpServer = dart.constFn(dart_rti.findType("_http|HttpServer")))(),
    ServerSocketTo_HttpServer: () => (T$13.ServerSocketTo_HttpServer = dart.constFn(dart_rti.findType("_http|_HttpServer(io|ServerSocket)")))(),
    SecureServerSocketTo_HttpServer: () => (T$13.SecureServerSocketTo_HttpServer = dart.constFn(dart_rti.findType("_http|_HttpServer(io|SecureServerSocket)")))(),
    TimerTovoid: () => (T$13.TimerTovoid = dart.constFn(dart_rti.findType("~(async|Timer)")))(),
    HandshakeException: () => (T$13.HandshakeException = dart.constFn(dart_rti.findType("io|HandshakeException")))(),
    dynamicAndintAndint__ToFutureOfHttpServer: () => (T$13.dynamicAndintAndint__ToFutureOfHttpServer = dart.constFn(dart_rti.findType("async|Future<_http|HttpServer>(@,core|int,core|int,core|bool,core|bool)")))(),
    dynamicAndintAndSecurityContextN__ToFutureOfHttpServer: () => (T$13.dynamicAndintAndSecurityContextN__ToFutureOfHttpServer = dart.constFn(dart_rti.findType("async|Future<_http|HttpServer>(@,core|int,io|SecurityContext?,core|int,core|bool,core|bool,core|bool)")))(),
    VoidToHttpHeaders: () => (T$13.VoidToHttpHeaders = dart.constFn(dart_rti.findType("_http|HttpHeaders()")))(),
    Fn__ToStreamSubscriptionOfHttpRequest: () => (T$13.Fn__ToStreamSubscriptionOfHttpRequest = dart.constFn(dart_rti.findType("async|StreamSubscription<_http|HttpRequest>(~(_http|HttpRequest)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))(),
    __ToFuture: () => (T$13.__ToFuture = dart.constFn(dart_rti.findType("async|Future<@>({force:core|bool})")))(),
    _HttpRequestTovoid: () => (T$13._HttpRequestTovoid = dart.constFn(dart_rti.findType("~(_http|_HttpRequest)")))(),
    _HttpConnectionTovoid: () => (T$13._HttpConnectionTovoid = dart.constFn(dart_rti.findType("~(_http|_HttpConnection)")))(),
    _HttpSessionManager: () => (T$13._HttpSessionManager = dart.constFn(dart_rti.findType("_http|_HttpSessionManager")))(),
    VoidToHttpConnectionsInfo: () => (T$13.VoidToHttpConnectionsInfo = dart.constFn(dart_rti.findType("_http|HttpConnectionsInfo()")))(),
    MapOfint$_HttpServer: () => (T$13.MapOfint$_HttpServer = dart.constFn(dart_rti.findType("core|Map<core|int,_http|_HttpServer>")))(),
    HttpHeaders: () => (T$13.HttpHeaders = dart.constFn(dart_rti.findType("_http|HttpHeaders")))(),
    _HttpSessionManagerN: () => (T$13._HttpSessionManagerN = dart.constFn(dart_rti.findType("_http|_HttpSessionManager?")))(),
    ServerSocketBaseOfSocket: () => (T$13.ServerSocketBaseOfSocket = dart.constFn(dart_rti.findType("_http|ServerSocketBase<io|Socket>")))(),
    LinkedListOf_HttpConnection: () => (T$13.LinkedListOf_HttpConnection = dart.constFn(dart_rti.findType("collection|LinkedList<_http|_HttpConnection>")))(),
    StreamControllerOfHttpRequest: () => (T$13.StreamControllerOfHttpRequest = dart.constFn(dart_rti.findType("async|StreamController<_http|HttpRequest>")))(),
    ListOf_Proxy: () => (T$13.ListOf_Proxy = dart.constFn(dart_rti.findType("core|List<_http|_Proxy>")))(),
    SocketTo_HttpConnectionInfoN: () => (T$13.SocketTo_HttpConnectionInfoN = dart.constFn(dart_rti.findType("_http|_HttpConnectionInfo?(io|Socket)")))(),
    _DetachedSocket: () => (T$13._DetachedSocket = dart.constFn(dart_rti.findType("_http|_DetachedSocket")))(),
    VoidToFutureOfListOfObjectN: () => (T$13.VoidToFutureOfListOfObjectN = dart.constFn(dart_rti.findType("async|Future<core|List<core|Object?>>()")))(),
    StringTo_AuthenticationScheme: () => (T$13.StringTo_AuthenticationScheme = dart.constFn(dart_rti.findType("_http|_AuthenticationScheme(core|String)")))(),
    _AuthenticationScheme: () => (T$13._AuthenticationScheme = dart.constFn(dart_rti.findType("_http|_AuthenticationScheme")))(),
    _HttpClientDigestCredentials: () => (T$13._HttpClientDigestCredentials = dart.constFn(dart_rti.findType("_http|_HttpClientDigestCredentials")))(),
    UriAnd_AuthenticationSchemeNTobool: () => (T$13.UriAnd_AuthenticationSchemeNTobool = dart.constFn(dart_rti.findType("core|bool(core|Uri,_http|_AuthenticationScheme?)")))(),
    HttpClientRequestTovoid: () => (T$13.HttpClientRequestTovoid = dart.constFn(dart_rti.findType("~(_http|HttpClientRequest)")))(),
    _ProxyAnd_AuthenticationSchemeNTobool: () => (T$13._ProxyAnd_AuthenticationSchemeNTobool = dart.constFn(dart_rti.findType("core|bool(_http|_Proxy,_http|_AuthenticationScheme?)")))(),
    _CredentialsAndHttpClientRequestTovoid: () => (T$13._CredentialsAndHttpClientRequestTovoid = dart.constFn(dart_rti.findType("~(_http|_Credentials,_http|HttpClientRequest)")))(),
    _ProxyCredentialsAndHttpClientRequestTovoid: () => (T$13._ProxyCredentialsAndHttpClientRequestTovoid = dart.constFn(dart_rti.findType("~(_http|_ProxyCredentials,_http|HttpClientRequest)")))(),
    _CredentialsAnd_HttpClientRequestToString: () => (T$13._CredentialsAnd_HttpClientRequestToString = dart.constFn(dart_rti.findType("core|String(_http|_Credentials,_http|_HttpClientRequest)")))(),
    ListOfbool: () => (T$13.ListOfbool = dart.constFn(dart_rti.findType("core|List<core|bool>")))(),
    FnTovoid$51: () => (T$13.FnTovoid$51 = dart.constFn(dart_rti.findType("~(~(typed_data|Uint8List)?)")))(),
    StreamSubscriptionOfUint8List: () => (T$13.StreamSubscriptionOfUint8List = dart.constFn(dart_rti.findType("async|StreamSubscription<typed_data|Uint8List>")))(),
    Uint8ListToNvoid: () => (T$13.Uint8ListToNvoid = dart.constFn(dart_rti.findType("~(typed_data|Uint8List)?")))(),
    _HttpDetachedIncoming: () => (T$13._HttpDetachedIncoming = dart.constFn(dart_rti.findType("_http|_HttpDetachedIncoming")))(),
    StreamSubscriptionNOfUint8List: () => (T$13.StreamSubscriptionNOfUint8List = dart.constFn(dart_rti.findType("async|StreamSubscription<typed_data|Uint8List>?")))(),
    VoidTo_HttpParser: () => (T$13.VoidTo_HttpParser = dart.constFn(dart_rti.findType("_http|_HttpParser()")))(),
    Fn__ToStreamSubscriptionOf_HttpIncoming: () => (T$13.Fn__ToStreamSubscriptionOf_HttpIncoming = dart.constFn(dart_rti.findType("async|StreamSubscription<_http|_HttpIncoming>(~(_http|_HttpIncoming)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))(),
    StreamOfUint8ListTovoid: () => (T$13.StreamOfUint8ListTovoid = dart.constFn(dart_rti.findType("~(async|Stream<typed_data|Uint8List>)")))(),
    VoidTo_HttpDetachedIncoming: () => (T$13.VoidTo_HttpDetachedIncoming = dart.constFn(dart_rti.findType("_http|_HttpDetachedIncoming()")))(),
    ListOfintAndListOfintTobool: () => (T$13.ListOfintAndListOfintTobool = dart.constFn(dart_rti.findType("core|bool(core|List<core|int>,core|List<core|int>)")))(),
    intTo_HttpIncoming: () => (T$13.intTo_HttpIncoming = dart.constFn(dart_rti.findType("_http|_HttpIncoming(core|int)")))(),
    boolTovoid$1: () => (T$13.boolTovoid$1 = dart.constFn(dart_rti.findType("~([core|bool])")))(),
    dynamicAnddynamicTovoid$1: () => (T$13.dynamicAnddynamicTovoid$1 = dart.constFn(dart_rti.findType("~(@[@])")))(),
    _HttpHeadersN: () => (T$13._HttpHeadersN = dart.constFn(dart_rti.findType("_http|_HttpHeaders?")))()
  };
  var T$14 = {
    _HttpIncomingN: () => (T$14._HttpIncomingN = dart.constFn(dart_rti.findType("_http|_HttpIncoming?")))(),
    StreamControllerOf_HttpIncoming: () => (T$14.StreamControllerOf_HttpIncoming = dart.constFn(dart_rti.findType("async|StreamController<_http|_HttpIncoming>")))(),
    IterableOfMapEntry: () => (T$14.IterableOfMapEntry = dart.constFn(dart_rti.findType("core|Iterable<core|MapEntry<@,@>>")))(),
    VoidToNdynamic: () => (T$14.VoidToNdynamic = dart.constFn(dart_rti.findType("@()?")))(),
    ObjectNAndObjectNTodynamic: () => (T$14.ObjectNAndObjectNTodynamic = dart.constFn(dart_rti.findType("@(core|Object?,core|Object?)")))(),
    FnTovoid$52: () => (T$14.FnTovoid$52 = dart.constFn(dart_rti.findType("~(~(@,@))")))(),
    FnToMapOfK$V: () => (T$14.FnToMapOfK$V = dart.constFn(dart_rti.findType("core|Map<0^,1^>(core|MapEntry<0^,1^>(@,@))<core|Object?,core|Object?>")))(),
    FnTovoid$53: () => (T$14.FnTovoid$53 = dart.constFn(dart_rti.findType("~(core|bool(@,@))")))(),
    ObjectNAndObjectN__Todynamic: () => (T$14.ObjectNAndObjectN__Todynamic = dart.constFn(dart_rti.findType("@(core|Object?,core|Object?{ifAbsent:core|Object?})")))(),
    _HttpSession: () => (T$14._HttpSession = dart.constFn(dart_rti.findType("_http|_HttpSession")))(),
    StringTo_HttpSessionN: () => (T$14.StringTo_HttpSessionN = dart.constFn(dart_rti.findType("_http|_HttpSession?(core|String)")))(),
    VoidTo_HttpSession: () => (T$14.VoidTo_HttpSession = dart.constFn(dart_rti.findType("_http|_HttpSession()")))(),
    _HttpSessionTovoid: () => (T$14._HttpSessionTovoid = dart.constFn(dart_rti.findType("~(_http|_HttpSession)")))(),
    MapOfString$_HttpSession: () => (T$14.MapOfString$_HttpSession = dart.constFn(dart_rti.findType("core|Map<core|String,_http|_HttpSession>")))(),
    HttpOverridesN: () => (T$14.HttpOverridesN = dart.constFn(dart_rti.findType("_http|HttpOverrides?")))(),
    Fn__ToR$1: () => (T$14.Fn__ToR$1 = dart.constFn(dart_rti.findType("0^(0^(){createHttpClient:_http|HttpClient(io|SecurityContext?)?,findProxyFromEnvironment:core|String(core|Uri,core|Map<core|String,core|String>?)?})<core|Object?>")))(),
    FnAndHttpOverridesToR: () => (T$14.FnAndHttpOverridesToR = dart.constFn(dart_rti.findType("0^(0^(),_http|HttpOverrides)<core|Object?>")))(),
    SecurityContextNToHttpClient: () => (T$14.SecurityContextNToHttpClient = dart.constFn(dart_rti.findType("_http|HttpClient(io|SecurityContext?)")))(),
    SecurityContextNToNHttpClient: () => (T$14.SecurityContextNToNHttpClient = dart.constFn(dart_rti.findType("_http|HttpClient(io|SecurityContext?)?")))(),
    UriAndMapNOfString$StringToNString: () => (T$14.UriAndMapNOfString$StringToNString = dart.constFn(dart_rti.findType("core|String(core|Uri,core|Map<core|String,core|String>?)?")))(),
    HeaderValueNTo_CompressionMaxWindowBits: () => (T$14.HeaderValueNTo_CompressionMaxWindowBits = dart.constFn(dart_rti.findType("_http|_CompressionMaxWindowBits(_http|HeaderValue?)")))(),
    HeaderValueNAndintToString: () => (T$14.HeaderValueNAndintToString = dart.constFn(dart_rti.findType("core|String(_http|HeaderValue?,core|int)")))(),
    HeaderValueNTo_CompressionMaxWindowBits$1: () => (T$14.HeaderValueNTo_CompressionMaxWindowBits$1 = dart.constFn(dart_rti.findType("_http|_CompressionMaxWindowBits([_http|HeaderValue?])")))(),
    CompressionOptions: () => (T$14.CompressionOptions = dart.constFn(dart_rti.findType("_http|CompressionOptions")))(),
    __ToWebSocketTransformer: () => (T$14.__ToWebSocketTransformer = dart.constFn(dart_rti.findType("_http|WebSocketTransformer({compression:_http|CompressionOptions,protocolSelector:@(core|List<core|String>)?})")))(),
    HttpRequest__ToFutureOfWebSocket: () => (T$14.HttpRequest__ToFutureOfWebSocket = dart.constFn(dart_rti.findType("async|Future<_http|WebSocket>(_http|HttpRequest{compression:_http|CompressionOptions,protocolSelector:@(core|List<core|String>)?})")))(),
    HttpRequestTobool: () => (T$14.HttpRequestTobool = dart.constFn(dart_rti.findType("core|bool(_http|HttpRequest)")))(),
    String__ToFutureOfWebSocket: () => (T$14.String__ToFutureOfWebSocket = dart.constFn(dart_rti.findType("async|Future<_http|WebSocket>(core|String{compression:_http|CompressionOptions,customClient:_http|HttpClient?,headers:core|Map<core|String,@>?,protocols:core|Iterable<core|String>?})")))(),
    Socket__ToWebSocket: () => (T$14.Socket__ToWebSocket = dart.constFn(dart_rti.findType("_http|WebSocket(io|Socket{compression:_http|CompressionOptions,protocol:core|String?,serverSide:core|bool?})")))(),
    _WebSocketProtocolTransformer: () => (T$14._WebSocketProtocolTransformer = dart.constFn(dart_rti.findType("_http|_WebSocketProtocolTransformer")))(),
    EventSinkTo_WebSocketProtocolTransformer: () => (T$14.EventSinkTo_WebSocketProtocolTransformer = dart.constFn(dart_rti.findType("_http|_WebSocketProtocolTransformer(async|EventSink<@>)")))(),
    ObjectNToStream: () => (T$14.ObjectNToStream = dart.constFn(dart_rti.findType("async|Stream<@>(core|Object?)")))(),
    intAndintAndUint8ListTovoid: () => (T$14.intAndintAndUint8ListTovoid = dart.constFn(dart_rti.findType("~(core|int,core|int,typed_data|Uint8List)")))(),
    _WebSocketPerMessageDeflateN: () => (T$14._WebSocketPerMessageDeflateN = dart.constFn(dart_rti.findType("_http|_WebSocketPerMessageDeflate?")))(),
    WebSocket: () => (T$14.WebSocket = dart.constFn(dart_rti.findType("_http|WebSocket")))(),
    _WebSocketTransformerImpl: () => (T$14._WebSocketTransformerImpl = dart.constFn(dart_rti.findType("_http|_WebSocketTransformerImpl")))(),
    StreamOfHttpRequest: () => (T$14.StreamOfHttpRequest = dart.constFn(dart_rti.findType("async|Stream<_http|HttpRequest>")))(),
    WebSocketTovoid: () => (T$14.WebSocketTovoid = dart.constFn(dart_rti.findType("~(_http|WebSocket)")))(),
    HttpRequestTovoid: () => (T$14.HttpRequestTovoid = dart.constFn(dart_rti.findType("~(_http|HttpRequest)")))(),
    SocketTo_WebSocketImpl: () => (T$14.SocketTo_WebSocketImpl = dart.constFn(dart_rti.findType("_http|_WebSocketImpl(io|Socket)")))(),
    StringNToFutureOfWebSocket: () => (T$14.StringNToFutureOfWebSocket = dart.constFn(dart_rti.findType("async|Future<_http|WebSocket>(core|String?)")))(),
    FutureOrOfString: () => (T$14.FutureOrOfString = dart.constFn(dart_rti.findType("core|String/")))(),
    VoidToFutureOrOfString: () => (T$14.VoidToFutureOrOfString = dart.constFn(dart_rti.findType("core|String/()")))(),
    ObjectNToStreamOfWebSocket: () => (T$14.ObjectNToStreamOfWebSocket = dart.constFn(dart_rti.findType("async|Stream<_http|WebSocket>(core|Object?)")))(),
    HttpRequestAndFnAndCompressionOptionsToFutureOfWebSocket: () => (T$14.HttpRequestAndFnAndCompressionOptionsToFutureOfWebSocket = dart.constFn(dart_rti.findType("async|Future<_http|WebSocket>(_http|HttpRequest,@(core|List<core|String>)?,_http|CompressionOptions)")))(),
    HttpRequestAndHttpResponseAndCompressionOptionsTo_WebSocketPerMessageDeflateN: () => (T$14.HttpRequestAndHttpResponseAndCompressionOptionsTo_WebSocketPerMessageDeflateN = dart.constFn(dart_rti.findType("_http|_WebSocketPerMessageDeflate?(_http|HttpRequest,_http|HttpResponse,_http|CompressionOptions)")))(),
    StreamControllerOfWebSocket: () => (T$14.StreamControllerOfWebSocket = dart.constFn(dart_rti.findType("async|StreamController<_http|WebSocket>")))(),
    ListOfStringToNdynamic: () => (T$14.ListOfStringToNdynamic = dart.constFn(dart_rti.findType("@(core|List<core|String>)?")))(),
    VoidToRawZLibFilter: () => (T$14.VoidToRawZLibFilter = dart.constFn(dart_rti.findType("io|RawZLibFilter()")))(),
    RawZLibFilterN: () => (T$14.RawZLibFilterN = dart.constFn(dart_rti.findType("io|RawZLibFilter?")))(),
    _WebSocketOutgoingTransformer: () => (T$14._WebSocketOutgoingTransformer = dart.constFn(dart_rti.findType("_http|_WebSocketOutgoingTransformer")))(),
    EventSinkOfListOfintTo_WebSocketOutgoingTransformer: () => (T$14.EventSinkOfListOfintTo_WebSocketOutgoingTransformer = dart.constFn(dart_rti.findType("_http|_WebSocketOutgoingTransformer(async|EventSink<core|List<core|int>>)")))(),
    _WebSocketPong: () => (T$14._WebSocketPong = dart.constFn(dart_rti.findType("_http|_WebSocketPong")))(),
    _WebSocketPing: () => (T$14._WebSocketPing = dart.constFn(dart_rti.findType("_http|_WebSocketPing")))(),
    _EncodedString: () => (T$14._EncodedString = dart.constFn(dart_rti.findType("_http|_EncodedString")))(),
    ObjectNToStreamOfListOfint: () => (T$14.ObjectNToStreamOfListOfint = dart.constFn(dart_rti.findType("async|Stream<core|List<core|int>>(core|Object?)")))(),
    intAndListNOfintTovoid: () => (T$14.intAndListNOfintTovoid = dart.constFn(dart_rti.findType("~(core|int,core|List<core|int>?)")))(),
    intAndListNOfintAndbool__ToIterableOfListOfint: () => (T$14.intAndListNOfintAndbool__ToIterableOfListOfint = dart.constFn(dart_rti.findType("core|Iterable<core|List<core|int>>(core|int,core|List<core|int>?,core|bool,core|bool)")))(),
    _WebSocketImpl: () => (T$14._WebSocketImpl = dart.constFn(dart_rti.findType("_http|_WebSocketImpl")))(),
    EventSinkNOfListOfint: () => (T$14.EventSinkNOfListOfint = dart.constFn(dart_rti.findType("async|EventSink<core|List<core|int>>?")))(),
    dynamicTo_WebSocketImpl: () => (T$14.dynamicTo_WebSocketImpl = dart.constFn(dart_rti.findType("_http|_WebSocketImpl(@)")))(),
    VoidToStreamController: () => (T$14.VoidToStreamController = dart.constFn(dart_rti.findType("async|StreamController<@>()")))(),
    ObjectNAndStackTraceNTobool: () => (T$14.ObjectNAndStackTraceNTobool = dart.constFn(dart_rti.findType("core|bool([core|Object?,core|StackTrace?])")))(),
    StreamControllerN: () => (T$14.StreamControllerN = dart.constFn(dart_rti.findType("async|StreamController<@>?")))(),
    HttpClientRequestToFutureOfHttpClientResponse: () => (T$14.HttpClientRequestToFutureOfHttpClientResponse = dart.constFn(dart_rti.findType("async|Future<_http|HttpClientResponse>(_http|HttpClientRequest)")))(),
    StringToFutureOfWebSocket: () => (T$14.StringToFutureOfWebSocket = dart.constFn(dart_rti.findType("async|Future<_http|WebSocket>(core|String)")))(),
    HttpClientResponseToFutureOfWebSocket: () => (T$14.HttpClientResponseToFutureOfWebSocket = dart.constFn(dart_rti.findType("async|Future<_http|WebSocket>(_http|HttpClientResponse)")))(),
    StreamSink: () => (T$14.StreamSink = dart.constFn(dart_rti.findType("async|StreamSink<@>")))(),
    _WebSocketConsumer: () => (T$14._WebSocketConsumer = dart.constFn(dart_rti.findType("_http|_WebSocketConsumer")))(),
    StringAndIterableNOfStringAndMapNOfString$dynamic__ToFutureOfWebSocket: () => (T$14.StringAndIterableNOfStringAndMapNOfString$dynamic__ToFutureOfWebSocket = dart.constFn(dart_rti.findType("async|Future<_http|WebSocket>(core|String,core|Iterable<core|String>?,core|Map<core|String,@>?{compression:_http|CompressionOptions,customClient:_http|HttpClient?})")))(),
    HttpClientResponseAndCompressionOptionsTo_WebSocketPerMessageDeflateN: () => (T$14.HttpClientResponseAndCompressionOptionsTo_WebSocketPerMessageDeflateN = dart.constFn(dart_rti.findType("_http|_WebSocketPerMessageDeflate?(_http|HttpClientResponse,_http|CompressionOptions)")))(),
    intNAndStringNToFuture: () => (T$14.intNAndStringNToFuture = dart.constFn(dart_rti.findType("async|Future<@>([core|int?,core|String?])")))(),
    intNTobool: () => (T$14.intNTobool = dart.constFn(dart_rti.findType("core|bool(core|int?)")))(),
    MapOfint$_WebSocketImpl: () => (T$14.MapOfint$_WebSocketImpl = dart.constFn(dart_rti.findType("core|Map<core|int,_http|_WebSocketImpl>")))(),
    StreamSinkN: () => (T$14.StreamSinkN = dart.constFn(dart_rti.findType("async|StreamSink<@>?")))(),
    _WebSocketConsumerN: () => (T$14._WebSocketConsumerN = dart.constFn(dart_rti.findType("_http|_WebSocketConsumer?")))(),
    HttpClient: () => (T$14.HttpClient = dart.constFn(dart_rti.findType("_http|HttpClient")))(),
    BytesBuilderTovoid: () => (T$14.BytesBuilderTovoid = dart.constFn(dart_rti.findType("~(_internal|BytesBuilder)")))(),
    UriTovoid: () => (T$14.UriTovoid = dart.constFn(dart_rti.findType("~(core|Uri)")))(),
    EmbeddedTestFont: () => (T$14.EmbeddedTestFont = dart.constFn(dart_rti.findType("_web_test_fonts|EmbeddedTestFont")))()
  };
  var G = {
    JSArrayOfString: () => (G.JSArrayOfString = dart.constFn(_interceptors.JSArray$(T$.String())))(),
    IdentityMapOfString$Object: () => (G.IdentityMapOfString$Object = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$.Object())))(),
    IdentityMapOfString$dynamic: () => (G.IdentityMapOfString$dynamic = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$.dynamic())))(),
    FutureOfvoid: () => (G.FutureOfvoid = dart.constFn(async.Future$(T$.void())))(),
    IdentityMapOfString$ObjectN: () => (G.IdentityMapOfString$ObjectN = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$.ObjectN())))(),
    IdentityMapOfString$ListNOfString: () => (G.IdentityMapOfString$ListNOfString = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$.ListNOfString())))(),
    ListOfString: () => (G.ListOfString = dart.constFn(core.List$(T$.String())))(),
    ExpandoOfFunction: () => (G.ExpandoOfFunction = dart.constFn(core.Expando$(T$.Function())))(),
    JSArrayOfObjectN: () => (G.JSArrayOfObjectN = dart.constFn(_interceptors.JSArray$(T$.ObjectN())))(),
    ListOfType: () => (G.ListOfType = dart.constFn(core.List$(T$.Type())))(),
    MapOfSymbol$dynamic: () => (G.MapOfSymbol$dynamic = dart.constFn(core.Map$(T$.Symbol(), T$.dynamic())))(),
    JSArrayOfType: () => (G.JSArrayOfType = dart.constFn(_interceptors.JSArray$(T$.Type())))(),
    JSArrayOfNameValuePair: () => (G.JSArrayOfNameValuePair = dart.constFn(_interceptors.JSArray$(T$.NameValuePair())))(),
    JSArrayOfFormatter: () => (G.JSArrayOfFormatter = dart.constFn(_interceptors.JSArray$(T$.Formatter())))(),
    _HashSetOfNameValuePair: () => (G._HashSetOfNameValuePair = dart.constFn(collection._HashSet$(T$.NameValuePair())))(),
    IdentityMapOfString$String: () => (G.IdentityMapOfString$String = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$.String())))(),
    LinkedHashMapOfdynamic$ObjectN: () => (G.LinkedHashMapOfdynamic$ObjectN = dart.constFn(collection.LinkedHashMap$(T$.dynamic(), T$.ObjectN())))(),
    IdentityMapOfString$_MethodStats: () => (G.IdentityMapOfString$_MethodStats = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$._MethodStats())))(),
    JSArrayOfListOfObject: () => (G.JSArrayOfListOfObject = dart.constFn(_interceptors.JSArray$(T$.ListOfObject())))(),
    JSArrayOfObject: () => (G.JSArrayOfObject = dart.constFn(_interceptors.JSArray$(T$.Object())))(),
    JSArrayOf_CallMethodRecord: () => (G.JSArrayOf_CallMethodRecord = dart.constFn(_interceptors.JSArray$(T$._CallMethodRecord())))(),
    UnmodifiableListBaseOfint: () => (G.UnmodifiableListBaseOfint = dart.constFn(_internal.UnmodifiableListBase$(dart_rti.findType("core|int"))))(),
    _FutureOfString: () => (G._FutureOfString = dart.constFn(async._Future$(T$.String())))(),
    _FutureOfbool: () => (G._FutureOfbool = dart.constFn(async._Future$(T$.bool())))(),
    _FutureOfint: () => (G._FutureOfint = dart.constFn(async._Future$(T$.int())))(),
    JSArrayOfUint8List: () => (G.JSArrayOfUint8List = dart.constFn(_interceptors.JSArray$(T$.Uint8List())))(),
    EmptyIteratorOfNeverL: () => (G.EmptyIteratorOfNeverL = dart.constFn(_internal.EmptyIterator$(T$.NeverL())))(),
    ListIterableOfint: () => (G.ListIterableOfint = dart.constFn(_internal.ListIterable$(dart_rti.findType("core|int"))))(),
    FutureOfNull: () => (G.FutureOfNull = dart.constFn(async.Future$(T$.Null())))(),
    JSArrayOfint: () => (G.JSArrayOfint = dart.constFn(_interceptors.JSArray$(T$.int())))(),
    JSArrayOfStringN: () => (G.JSArrayOfStringN = dart.constFn(_interceptors.JSArray$(T$.StringN())))(),
    SubListIterableOfString: () => (G.SubListIterableOfString = dart.constFn(_internal.SubListIterable$(T$.String())))(),
    EmptyIterableOfString: () => (G.EmptyIterableOfString = dart.constFn(_internal.EmptyIterable$(T$.String())))(),
    IterableOfRegExpMatch: () => (G.IterableOfRegExpMatch = dart.constFn(core.Iterable$(dart_rti.findType("core|RegExpMatch"))))(),
    IterableOfMatch: () => (G.IterableOfMatch = dart.constFn(core.Iterable$(dart_rti.findType("core|Match"))))(),
    ListBaseOfFloat32x4: () => (G.ListBaseOfFloat32x4 = dart.constFn(collection.ListBase$(dart_rti.findType("typed_data|Float32x4"))))(),
    FixedLengthListMixinOfFloat32x4: () => (G.FixedLengthListMixinOfFloat32x4 = dart.constFn(_internal.FixedLengthListMixin$(dart_rti.findType("typed_data|Float32x4"))))(),
    ListBaseOfInt32x4: () => (G.ListBaseOfInt32x4 = dart.constFn(collection.ListBase$(dart_rti.findType("typed_data|Int32x4"))))(),
    FixedLengthListMixinOfInt32x4: () => (G.FixedLengthListMixinOfInt32x4 = dart.constFn(_internal.FixedLengthListMixin$(dart_rti.findType("typed_data|Int32x4"))))(),
    ListBaseOfFloat64x2: () => (G.ListBaseOfFloat64x2 = dart.constFn(collection.ListBase$(dart_rti.findType("typed_data|Float64x2"))))(),
    FixedLengthListMixinOfFloat64x2: () => (G.FixedLengthListMixinOfFloat64x2 = dart.constFn(_internal.FixedLengthListMixin$(dart_rti.findType("typed_data|Float64x2"))))(),
    NativeTypedArrayOfdouble: () => (G.NativeTypedArrayOfdouble = dart.constFn(_native_typed_data.NativeTypedArray$(dart_rti.findType("core|double"))))(),
    ListBaseOfdouble: () => (G.ListBaseOfdouble = dart.constFn(collection.ListBase$(dart_rti.findType("core|double"))))(),
    FixedLengthListMixinOfdouble: () => (G.FixedLengthListMixinOfdouble = dart.constFn(_internal.FixedLengthListMixin$(dart_rti.findType("core|double"))))(),
    NativeTypedArrayOfint: () => (G.NativeTypedArrayOfint = dart.constFn(_native_typed_data.NativeTypedArray$(dart_rti.findType("core|int"))))(),
    ListBaseOfint: () => (G.ListBaseOfint = dart.constFn(collection.ListBase$(dart_rti.findType("core|int"))))(),
    FixedLengthListMixinOfint: () => (G.FixedLengthListMixinOfint = dart.constFn(_internal.FixedLengthListMixin$(dart_rti.findType("core|int"))))(),
    _UnmodifiableTypedListMixinOfint$Uint8List$Uint8List: () => (G._UnmodifiableTypedListMixinOfint$Uint8List$Uint8List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|int"), dart_rti.findType("typed_data|Uint8List"), dart_rti.findType("typed_data|Uint8List"))))(),
    _UnmodifiableTypedListMixinOfint$Int8List$Int8List: () => (G._UnmodifiableTypedListMixinOfint$Int8List$Int8List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|int"), dart_rti.findType("typed_data|Int8List"), dart_rti.findType("typed_data|Int8List"))))(),
    _UnmodifiableTypedListMixinOfint$Uint8ClampedList$Uint8ClampedList: () => (G._UnmodifiableTypedListMixinOfint$Uint8ClampedList$Uint8ClampedList = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|int"), dart_rti.findType("typed_data|Uint8ClampedList"), dart_rti.findType("typed_data|Uint8ClampedList"))))(),
    _UnmodifiableTypedListMixinOfint$Uint16List$Uint16List: () => (G._UnmodifiableTypedListMixinOfint$Uint16List$Uint16List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|int"), dart_rti.findType("typed_data|Uint16List"), dart_rti.findType("typed_data|Uint16List"))))(),
    _UnmodifiableTypedListMixinOfint$Int16List$Int16List: () => (G._UnmodifiableTypedListMixinOfint$Int16List$Int16List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|int"), dart_rti.findType("typed_data|Int16List"), dart_rti.findType("typed_data|Int16List"))))(),
    _UnmodifiableTypedListMixinOfint$Uint32List$Uint32List: () => (G._UnmodifiableTypedListMixinOfint$Uint32List$Uint32List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|int"), dart_rti.findType("typed_data|Uint32List"), dart_rti.findType("typed_data|Uint32List"))))(),
    _UnmodifiableTypedListMixinOfint$Int32List$Int32List: () => (G._UnmodifiableTypedListMixinOfint$Int32List$Int32List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|int"), dart_rti.findType("typed_data|Int32List"), dart_rti.findType("typed_data|Int32List"))))(),
    _UnmodifiableTypedListMixinOfint$Uint64List$Uint64List: () => (G._UnmodifiableTypedListMixinOfint$Uint64List$Uint64List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|int"), dart_rti.findType("typed_data|Uint64List"), dart_rti.findType("typed_data|Uint64List"))))(),
    _UnmodifiableTypedListMixinOfint$Int64List$Int64List: () => (G._UnmodifiableTypedListMixinOfint$Int64List$Int64List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|int"), dart_rti.findType("typed_data|Int64List"), dart_rti.findType("typed_data|Int64List"))))(),
    UnmodifiableListBaseOfInt32x4: () => (G.UnmodifiableListBaseOfInt32x4 = dart.constFn(_internal.UnmodifiableListBase$(dart_rti.findType("typed_data|Int32x4"))))(),
    _UnmodifiableTypedListMixinOfInt32x4$Int32x4List$Int32x4List: () => (G._UnmodifiableTypedListMixinOfInt32x4$Int32x4List$Int32x4List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("typed_data|Int32x4"), dart_rti.findType("typed_data|Int32x4List"), dart_rti.findType("typed_data|Int32x4List"))))(),
    UnmodifiableListBaseOfFloat32x4: () => (G.UnmodifiableListBaseOfFloat32x4 = dart.constFn(_internal.UnmodifiableListBase$(dart_rti.findType("typed_data|Float32x4"))))(),
    _UnmodifiableTypedListMixinOfFloat32x4$Float32x4List$Float32x4List: () => (G._UnmodifiableTypedListMixinOfFloat32x4$Float32x4List$Float32x4List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("typed_data|Float32x4"), dart_rti.findType("typed_data|Float32x4List"), dart_rti.findType("typed_data|Float32x4List"))))(),
    UnmodifiableListBaseOfFloat64x2: () => (G.UnmodifiableListBaseOfFloat64x2 = dart.constFn(_internal.UnmodifiableListBase$(dart_rti.findType("typed_data|Float64x2"))))(),
    _UnmodifiableTypedListMixinOfFloat64x2$Float64x2List$Float64x2List: () => (G._UnmodifiableTypedListMixinOfFloat64x2$Float64x2List$Float64x2List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("typed_data|Float64x2"), dart_rti.findType("typed_data|Float64x2List"), dart_rti.findType("typed_data|Float64x2List"))))(),
    UnmodifiableListBaseOfdouble: () => (G.UnmodifiableListBaseOfdouble = dart.constFn(_internal.UnmodifiableListBase$(dart_rti.findType("core|double"))))(),
    _UnmodifiableTypedListMixinOfdouble$Float32List$Float32List: () => (G._UnmodifiableTypedListMixinOfdouble$Float32List$Float32List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|double"), dart_rti.findType("typed_data|Float32List"), dart_rti.findType("typed_data|Float32List"))))(),
    _UnmodifiableTypedListMixinOfdouble$Float64List$Float64List: () => (G._UnmodifiableTypedListMixinOfdouble$Float64List$Float64List = dart.constFn(_native_typed_data._UnmodifiableTypedListMixin$(dart_rti.findType("core|double"), dart_rti.findType("typed_data|Float64List"), dart_rti.findType("typed_data|Float64List"))))(),
    _FutureOfObjectN: () => (G._FutureOfObjectN = dart.constFn(async._Future$(T$.ObjectN())))(),
    _FutureOfvoid: () => (G._FutureOfvoid = dart.constFn(async._Future$(T$.void())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToR())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$1: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$1 = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToR$1())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$2: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$2 = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToR$2())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToFn())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$1: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$1 = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToFn$1())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$2: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$2 = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToFn$2())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToAsyncErrorN: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToAsyncErrorN = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToAsyncErrorN())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__Tovoid())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToTimer())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer$1: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer$1 = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToTimer$1())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$1: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$1 = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__Tovoid$1())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__ToZone: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToZone = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__ToZone())))(),
    _ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$2: () => (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$2 = dart.constFn(async._ZoneFunction$(T$1.ZoneAndZoneDelegateAndZone__Tovoid$2())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLRL())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$1: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$1 = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLRL$1())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$2: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$2 = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLRL$2())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLFn())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$1: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$1 = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLFn$1())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$2: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$2 = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLFn$2())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLAsyncErrorN: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLAsyncErrorN = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLAsyncErrorN())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLvoid())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLTimerL())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL$1: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL$1 = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLTimerL$1())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$1: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$1 = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLvoid$1())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLZoneL: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLZoneL = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLZoneL())))(),
    _ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$2: () => (G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$2 = dart.constFn(async._ZoneFunction$(T$1.ZoneLAndZoneDelegateLAndZoneL__ToLvoid$2())))(),
    JSArrayOfAsyncErrorN: () => (G.JSArrayOfAsyncErrorN = dart.constFn(_interceptors.JSArray$(T$1.AsyncErrorN())))(),
    JSArrayOf_FutureResult: () => (G.JSArrayOf_FutureResult = dart.constFn(_interceptors.JSArray$(T$1._FutureResult())))(),
    HashMapOfObjectN$ObjectN: () => (G.HashMapOfObjectN$ObjectN = dart.constFn(collection.HashMap$(T$.ObjectN(), T$.ObjectN())))(),
    MappedIterableOfString$dynamic: () => (G.MappedIterableOfString$dynamic = dart.constFn(_internal.MappedIterable$(T$.String(), T$.dynamic())))(),
    MapBaseOfString$dynamic: () => (G.MapBaseOfString$dynamic = dart.constFn(collection.MapBase$(dart_rti.findType("core|String"), dart_rti.findType("@"))))(),
    ListIterableOfString: () => (G.ListIterableOfString = dart.constFn(_internal.ListIterable$(dart_rti.findType("core|String"))))(),
    _StringSinkConversionSinkOfStringSink: () => (G._StringSinkConversionSinkOfStringSink = dart.constFn(convert._StringSinkConversionSink$(T$2.StringSink())))(),
    _StringSinkConversionSinkOfStringBuffer: () => (G._StringSinkConversionSinkOfStringBuffer = dart.constFn(convert._StringSinkConversionSink$(dart_rti.findType("core|StringBuffer"))))(),
    CodecOfString$ListOfint: () => (G.CodecOfString$ListOfint = dart.constFn(convert.Codec$(dart_rti.findType("core|String"), dart_rti.findType("core|List<core|int>"))))(),
    IdentityMapOfString$Encoding: () => (G.IdentityMapOfString$Encoding = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$2.Encoding())))(),
    ConverterOfString$ListOfint: () => (G.ConverterOfString$ListOfint = dart.constFn(convert.Converter$(dart_rti.findType("core|String"), dart_rti.findType("core|List<core|int>"))))(),
    ConverterOfListOfint$String: () => (G.ConverterOfListOfint$String = dart.constFn(convert.Converter$(dart_rti.findType("core|List<core|int>"), dart_rti.findType("core|String"))))(),
    CodecOfListOfint$String: () => (G.CodecOfListOfint$String = dart.constFn(convert.Codec$(dart_rti.findType("core|List<core|int>"), dart_rti.findType("core|String"))))(),
    ConverterOfString$String: () => (G.ConverterOfString$String = dart.constFn(convert.Converter$(dart_rti.findType("core|String"), dart_rti.findType("core|String"))))(),
    CodecOfObjectN$String: () => (G.CodecOfObjectN$String = dart.constFn(convert.Codec$(dart_rti.findType("core|Object?"), dart_rti.findType("core|String"))))(),
    ConverterOfObjectN$String: () => (G.ConverterOfObjectN$String = dart.constFn(convert.Converter$(dart_rti.findType("core|Object?"), dart_rti.findType("core|String"))))(),
    JSArrayOfListOfint: () => (G.JSArrayOfListOfint = dart.constFn(_interceptors.JSArray$(T$.ListOfint())))(),
    ConverterOfObjectN$ListOfint: () => (G.ConverterOfObjectN$ListOfint = dart.constFn(convert.Converter$(dart_rti.findType("core|Object?"), dart_rti.findType("core|List<core|int>"))))(),
    ChunkedConversionSinkOfObjectN: () => (G.ChunkedConversionSinkOfObjectN = dart.constFn(convert.ChunkedConversionSink$(dart_rti.findType("core|Object?"))))(),
    ConverterOfString$ObjectN: () => (G.ConverterOfString$ObjectN = dart.constFn(convert.Converter$(dart_rti.findType("core|String"), dart_rti.findType("core|Object?"))))(),
    ListOfObjectN: () => (G.ListOfObjectN = dart.constFn(core.List$(T$.ObjectN())))(),
    StreamOfString: () => (G.StreamOfString = dart.constFn(async.Stream$(T$.String())))(),
    StreamTransformerBaseOfString$String: () => (G.StreamTransformerBaseOfString$String = dart.constFn(async.StreamTransformerBase$(dart_rti.findType("core|String"), dart_rti.findType("core|String"))))(),
    IterableOfString: () => (G.IterableOfString = dart.constFn(core.Iterable$(dart_rti.findType("core|String"))))(),
    IdentityMapOfString$_FakeUserTag: () => (G.IdentityMapOfString$_FakeUserTag = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$2._FakeUserTag())))(),
    CompleterOfStringN: () => (G.CompleterOfStringN = dart.constFn(async.Completer$(T$.StringN())))(),
    JSArrayOf_SyncBlockN: () => (G.JSArrayOf_SyncBlockN = dart.constFn(_interceptors.JSArray$(T$2._SyncBlockN())))(),
    JSArrayOf_AsyncBlockN: () => (G.JSArrayOf_AsyncBlockN = dart.constFn(_interceptors.JSArray$(T$2._AsyncBlockN())))(),
    LinkedMapOfObjectN$ObjectN: () => (G.LinkedMapOfObjectN$ObjectN = dart.constFn(_js_helper.LinkedMap$(T$.ObjectN(), T$.ObjectN())))(),
    UnmodifiableListViewOfMapOfString$dynamic: () => (G.UnmodifiableListViewOfMapOfString$dynamic = dart.constFn(collection.UnmodifiableListView$(T$2.MapOfString$dynamic())))(),
    IdentityMapOfString$StringAndMapOfString$StringToFutureOfServiceExtensionResponse: () => (G.IdentityMapOfString$StringAndMapOfString$StringToFutureOfServiceExtensionResponse = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$2.StringAndMapOfString$StringToFutureOfServiceExtensionResponse())))(),
    IdentityMapOfString$int: () => (G.IdentityMapOfString$int = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$.int())))(),
    JSArrayOfMapOfString$dynamic: () => (G.JSArrayOfMapOfString$dynamic = dart.constFn(_interceptors.JSArray$(T$2.MapOfString$dynamic())))(),
    CodecOfListOfint$ListOfint: () => (G.CodecOfListOfint$ListOfint = dart.constFn(convert.Codec$(dart_rti.findType("core|List<core|int>"), dart_rti.findType("core|List<core|int>"))))(),
    ConverterOfListOfint$ListOfint: () => (G.ConverterOfListOfint$ListOfint = dart.constFn(convert.Converter$(dart_rti.findType("core|List<core|int>"), dart_rti.findType("core|List<core|int>"))))(),
    JSArrayOfFileSystemEntity: () => (G.JSArrayOfFileSystemEntity = dart.constFn(_interceptors.JSArray$(T$2.FileSystemEntity())))(),
    StreamControllerOfFileSystemEntity: () => (G.StreamControllerOfFileSystemEntity = dart.constFn(async.StreamController$(T$2.FileSystemEntity())))(),
    StreamControllerOfUint8List: () => (G.StreamControllerOfUint8List = dart.constFn(async.StreamController$(T$.Uint8List())))(),
    StreamOfListOfint: () => (G.StreamOfListOfint = dart.constFn(async.Stream$(dart_rti.findType("core|List<core|int>"))))(),
    FutureOfRandomAccessFile: () => (G.FutureOfRandomAccessFile = dart.constFn(async.Future$(T$2.RandomAccessFile())))(),
    CompleterOfFileN: () => (G.CompleterOfFileN = dart.constFn(async.Completer$(T$2.FileN())))(),
    CompleterOfUint8List: () => (G.CompleterOfUint8List = dart.constFn(async.Completer$(T$.Uint8List())))(),
    FutureOfFile: () => (G.FutureOfFile = dart.constFn(async.Future$(T$2.File())))(),
    FutureOfint: () => (G.FutureOfint = dart.constFn(async.Future$(T$.int())))(),
    FutureOfObjectN: () => (G.FutureOfObjectN = dart.constFn(async.Future$(T$.ObjectN())))(),
    _StreamSinkImplOfListOfint: () => (G._StreamSinkImplOfListOfint = dart.constFn(io._StreamSinkImpl$(dart_rti.findType("core|List<core|int>"))))(),
    CompleterOf_Pipe: () => (G.CompleterOf_Pipe = dart.constFn(async.Completer$(T$2._Pipe())))(),
    ListOfMapOfString$dynamic: () => (G.ListOfMapOfString$dynamic = dart.constFn(core.List$(T$2.MapOfString$dynamic())))(),
    FutureOfServiceExtensionResponse: () => (G.FutureOfServiceExtensionResponse = dart.constFn(async.Future$(T$2.ServiceExtensionResponse())))(),
    IdentityMapOfint$_FileResourceInfo: () => (G.IdentityMapOfint$_FileResourceInfo = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$2._FileResourceInfo())))(),
    LinkedMapOfint$_SpawnedProcessResourceInfo: () => (G.LinkedMapOfint$_SpawnedProcessResourceInfo = dart.constFn(_js_helper.LinkedMap$(T$.int(), T$2._SpawnedProcessResourceInfo())))(),
    IdentityMapOfString$_SocketStatistic: () => (G.IdentityMapOfString$_SocketStatistic = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$3._SocketStatistic())))(),
    _CaseInsensitiveStringMapOfString: () => (G._CaseInsensitiveStringMapOfString = dart.constFn(io._CaseInsensitiveStringMap$(T$.String())))(),
    LinkedMapOfString$String: () => (G.LinkedMapOfString$String = dart.constFn(_js_helper.LinkedMap$(T$.String(), T$.String())))(),
    UnmodifiableMapViewOfString$String: () => (G.UnmodifiableMapViewOfString$String = dart.constFn(collection.UnmodifiableMapView$(T$.String(), T$.String())))(),
    StreamOfSecureSocket: () => (G.StreamOfSecureSocket = dart.constFn(async.Stream$(dart_rti.findType("io|SecureSocket"))))(),
    StreamControllerOfRawSecureSocket: () => (G.StreamControllerOfRawSecureSocket = dart.constFn(async.StreamController$(T$3.RawSecureSocket())))(),
    StreamOfRawSecureSocket: () => (G.StreamOfRawSecureSocket = dart.constFn(async.Stream$(dart_rti.findType("io|RawSecureSocket"))))(),
    ConnectionTaskOfSecureSocket: () => (G.ConnectionTaskOfSecureSocket = dart.constFn(io.ConnectionTask$(T$3.SecureSocket())))(),
    ConnectionTaskOfRawSecureSocket: () => (G.ConnectionTaskOfRawSecureSocket = dart.constFn(io.ConnectionTask$(T$3.RawSecureSocket())))(),
    CompleterOf_RawSecureSocket: () => (G.CompleterOf_RawSecureSocket = dart.constFn(async.Completer$(T$3._RawSecureSocket())))(),
    StreamControllerOfRawSocketEvent: () => (G.StreamControllerOfRawSocketEvent = dart.constFn(async.StreamController$(T$3.RawSocketEvent())))(),
    CompleterOfRawSecureSocket: () => (G.CompleterOfRawSecureSocket = dart.constFn(async.Completer$(T$3.RawSecureSocket())))(),
    StreamOfRawSocketEvent: () => (G.StreamOfRawSocketEvent = dart.constFn(async.Stream$(dart_rti.findType("io|RawSocketEvent"))))(),
    LinkedMapOfSymbol$ObjectN: () => (G.LinkedMapOfSymbol$ObjectN = dart.constFn(_js_helper.LinkedMap$(T$.Symbol(), T$.ObjectN())))(),
    IdentityMapOfObjectN$ObjectN: () => (G.IdentityMapOfObjectN$ObjectN = dart.constFn(_js_helper.IdentityMap$(T$.ObjectN(), T$.ObjectN())))(),
    EventStreamProviderOfEventL: () => (G.EventStreamProviderOfEventL = dart.constFn(html$.EventStreamProvider$(T$3.EventL())))(),
    EventStreamProviderOfVersionChangeEventL: () => (G.EventStreamProviderOfVersionChangeEventL = dart.constFn(html$.EventStreamProvider$(T$3.VersionChangeEventL())))(),
    FutureOfDatabase: () => (G.FutureOfDatabase = dart.constFn(async.Future$(T$3.Database())))(),
    CompleterOfIdbFactory: () => (G.CompleterOfIdbFactory = dart.constFn(async.Completer$(T$3.IdbFactory())))(),
    FutureOfIdbFactory: () => (G.FutureOfIdbFactory = dart.constFn(async.Future$(T$3.IdbFactory())))(),
    CompleterOfDatabase: () => (G.CompleterOfDatabase = dart.constFn(async.Completer$(T$3.Database())))(),
    JSArrayOfEventTarget: () => (G.JSArrayOfEventTarget = dart.constFn(_interceptors.JSArray$(T$3.EventTarget())))(),
    CompleterOfScrollState: () => (G.CompleterOfScrollState = dart.constFn(async.Completer$(T$3.ScrollState())))(),
    RectangleOfnum: () => (G.RectangleOfnum = dart.constFn(math.Rectangle$(T$.num())))(),
    PointOfnum: () => (G.PointOfnum = dart.constFn(math.Point$(T$.num())))(),
    _CustomEventStreamProviderOfWheelEventL: () => (G._CustomEventStreamProviderOfWheelEventL = dart.constFn(html$._CustomEventStreamProvider$(T$4.WheelEventL())))(),
    _CustomEventStreamProviderOfTransitionEventL: () => (G._CustomEventStreamProviderOfTransitionEventL = dart.constFn(html$._CustomEventStreamProvider$(T$4.TransitionEventL())))(),
    EventStreamProviderOfMouseEventL: () => (G.EventStreamProviderOfMouseEventL = dart.constFn(html$.EventStreamProvider$(T$4.MouseEventL())))(),
    EventStreamProviderOfClipboardEventL: () => (G.EventStreamProviderOfClipboardEventL = dart.constFn(html$.EventStreamProvider$(T$4.ClipboardEventL())))(),
    EventStreamProviderOfKeyboardEventL: () => (G.EventStreamProviderOfKeyboardEventL = dart.constFn(html$.EventStreamProvider$(T$4.KeyboardEventL())))(),
    EventStreamProviderOfTouchEventL: () => (G.EventStreamProviderOfTouchEventL = dart.constFn(html$.EventStreamProvider$(T$4.TouchEventL())))(),
    EventStreamProviderOfWheelEventL: () => (G.EventStreamProviderOfWheelEventL = dart.constFn(html$.EventStreamProvider$(T$4.WheelEventL())))(),
    EventStreamProviderOfProgressEventL: () => (G.EventStreamProviderOfProgressEventL = dart.constFn(html$.EventStreamProvider$(T$4.ProgressEventL())))(),
    EventStreamProviderOfMessageEventL: () => (G.EventStreamProviderOfMessageEventL = dart.constFn(html$.EventStreamProvider$(T$4.MessageEventL())))(),
    EventStreamProviderOfPopStateEventL: () => (G.EventStreamProviderOfPopStateEventL = dart.constFn(html$.EventStreamProvider$(T$4.PopStateEventL())))(),
    EventStreamProviderOfStorageEventL: () => (G.EventStreamProviderOfStorageEventL = dart.constFn(html$.EventStreamProvider$(T$4.StorageEventL())))(),
    CompleterOfBlob: () => (G.CompleterOfBlob = dart.constFn(async.Completer$(T$4.Blob())))(),
    EventStreamProviderOfContextEventL: () => (G.EventStreamProviderOfContextEventL = dart.constFn(html$.EventStreamProvider$(T$4.ContextEventL())))(),
    JSArrayOfnum: () => (G.JSArrayOfnum = dart.constFn(_interceptors.JSArray$(T$.num())))(),
    ListOfElement: () => (G.ListOfElement = dart.constFn(core.List$(T$3.Element())))()
  };
  var G$ = {
    CompleterOfEntry: () => (G$.CompleterOfEntry = dart.constFn(async.Completer$(T$4.Entry())))(),
    CompleterOfMetadata: () => (G$.CompleterOfMetadata = dart.constFn(async.Completer$(T$5.Metadata())))(),
    CompleterOfListOfEntry: () => (G$.CompleterOfListOfEntry = dart.constFn(async.Completer$(T$5.ListOfEntry())))(),
    ListOfEntry: () => (G$.ListOfEntry = dart.constFn(core.List$(T$4.Entry())))(),
    EventStreamProviderOfSecurityPolicyViolationEventL: () => (G$.EventStreamProviderOfSecurityPolicyViolationEventL = dart.constFn(html$.EventStreamProvider$(T$5.SecurityPolicyViolationEventL())))(),
    ListBaseOfRectangleOfnum: () => (G$.ListBaseOfRectangleOfnum = dart.constFn(collection.ListBase$(dart_rti.findType("math|Rectangle<core|num>"))))(),
    ImmutableListMixinOfRectangleOfnum: () => (G$.ImmutableListMixinOfRectangleOfnum = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("math|Rectangle<core|num>"))))(),
    ListBaseOfString: () => (G$.ListBaseOfString = dart.constFn(collection.ListBase$(dart_rti.findType("core|String"))))(),
    ImmutableListMixinOfString: () => (G$.ImmutableListMixinOfString = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("core|String"))))(),
    ListBaseOfElement: () => (G$.ListBaseOfElement = dart.constFn(collection.ListBase$(dart_rti.findType("html|Element"))))(),
    _EventStreamOfEvent: () => (G$._EventStreamOfEvent = dart.constFn(html$._EventStream$(T$5.Event())))(),
    _ElementEventStreamImplOfEvent: () => (G$._ElementEventStreamImplOfEvent = dart.constFn(html$._ElementEventStreamImpl$(T$5.Event())))(),
    CompleterOfFileWriter: () => (G$.CompleterOfFileWriter = dart.constFn(async.Completer$(T$5.FileWriter())))(),
    CompleterOfFile: () => (G$.CompleterOfFile = dart.constFn(async.Completer$(T$5.File$1())))(),
    ListBaseOfFile: () => (G$.ListBaseOfFile = dart.constFn(collection.ListBase$(dart_rti.findType("html|File"))))(),
    ImmutableListMixinOfFile: () => (G$.ImmutableListMixinOfFile = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|File"))))(),
    EventStreamProviderOfFontFaceSetLoadEventL: () => (G$.EventStreamProviderOfFontFaceSetLoadEventL = dart.constFn(html$.EventStreamProvider$(T$5.FontFaceSetLoadEventL())))(),
    CompleterOfGeoposition: () => (G$.CompleterOfGeoposition = dart.constFn(async.Completer$(T$5.Geoposition())))(),
    StreamControllerOfGeoposition: () => (G$.StreamControllerOfGeoposition = dart.constFn(async.StreamController$(T$5.Geoposition())))(),
    ListBaseOfNode: () => (G$.ListBaseOfNode = dart.constFn(collection.ListBase$(dart_rti.findType("html|Node"))))(),
    ImmutableListMixinOfNode: () => (G$.ImmutableListMixinOfNode = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|Node"))))(),
    _CustomEventStreamProviderOfEventL: () => (G$._CustomEventStreamProviderOfEventL = dart.constFn(html$._CustomEventStreamProvider$(T$3.EventL())))(),
    CompleterOfHttpRequest: () => (G$.CompleterOfHttpRequest = dart.constFn(async.Completer$(T$5.HttpRequest())))(),
    CompleterOfString: () => (G$.CompleterOfString = dart.constFn(async.Completer$(T$.String())))(),
    EventStreamProviderOfMidiMessageEventL: () => (G$.EventStreamProviderOfMidiMessageEventL = dart.constFn(html$.EventStreamProvider$(T.MidiMessageEventL())))(),
    JSArrayOfMap: () => (G$.JSArrayOfMap = dart.constFn(_interceptors.JSArray$(T$.Map())))(),
    ListBaseOfMimeType: () => (G$.ListBaseOfMimeType = dart.constFn(collection.ListBase$(dart_rti.findType("html|MimeType"))))(),
    ImmutableListMixinOfMimeType: () => (G$.ImmutableListMixinOfMimeType = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|MimeType"))))(),
    CompleterOfMediaStream: () => (G$.CompleterOfMediaStream = dart.constFn(async.Completer$(T$5.MediaStream())))(),
    ListBaseOfPlugin: () => (G$.ListBaseOfPlugin = dart.constFn(collection.ListBase$(dart_rti.findType("html|Plugin"))))(),
    ImmutableListMixinOfPlugin: () => (G$.ImmutableListMixinOfPlugin = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|Plugin"))))(),
    EventStreamProviderOfRtcDtmfToneChangeEventL: () => (G$.EventStreamProviderOfRtcDtmfToneChangeEventL = dart.constFn(html$.EventStreamProvider$(T.RtcDtmfToneChangeEventL())))(),
    JSArrayOfMapOfString$String: () => (G$.JSArrayOfMapOfString$String = dart.constFn(_interceptors.JSArray$(T$2.MapOfString$String())))(),
    CompleterOfRtcStatsResponse: () => (G$.CompleterOfRtcStatsResponse = dart.constFn(async.Completer$(T.RtcStatsResponse())))(),
    EventStreamProviderOfMediaStreamEventL: () => (G$.EventStreamProviderOfMediaStreamEventL = dart.constFn(html$.EventStreamProvider$(T.MediaStreamEventL())))(),
    EventStreamProviderOfRtcDataChannelEventL: () => (G$.EventStreamProviderOfRtcDataChannelEventL = dart.constFn(html$.EventStreamProvider$(T.RtcDataChannelEventL())))(),
    EventStreamProviderOfRtcPeerConnectionIceEventL: () => (G$.EventStreamProviderOfRtcPeerConnectionIceEventL = dart.constFn(html$.EventStreamProvider$(T.RtcPeerConnectionIceEventL())))(),
    EventStreamProviderOfRtcTrackEventL: () => (G$.EventStreamProviderOfRtcTrackEventL = dart.constFn(html$.EventStreamProvider$(T.RtcTrackEventL())))(),
    UnmodifiableListViewOfOptionElement: () => (G$.UnmodifiableListViewOfOptionElement = dart.constFn(collection.UnmodifiableListView$(T.OptionElement())))(),
    JSArrayOfOptionElement: () => (G$.JSArrayOfOptionElement = dart.constFn(_interceptors.JSArray$(T.OptionElement())))(),
    EventStreamProviderOfForeignFetchEventL: () => (G$.EventStreamProviderOfForeignFetchEventL = dart.constFn(html$.EventStreamProvider$(T.ForeignFetchEventL())))(),
    ListBaseOfSourceBuffer: () => (G$.ListBaseOfSourceBuffer = dart.constFn(collection.ListBase$(dart_rti.findType("html|SourceBuffer"))))(),
    ImmutableListMixinOfSourceBuffer: () => (G$.ImmutableListMixinOfSourceBuffer = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|SourceBuffer"))))(),
    ListBaseOfSpeechGrammar: () => (G$.ListBaseOfSpeechGrammar = dart.constFn(collection.ListBase$(dart_rti.findType("html|SpeechGrammar"))))(),
    ImmutableListMixinOfSpeechGrammar: () => (G$.ImmutableListMixinOfSpeechGrammar = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|SpeechGrammar"))))(),
    EventStreamProviderOfSpeechRecognitionErrorL: () => (G$.EventStreamProviderOfSpeechRecognitionErrorL = dart.constFn(html$.EventStreamProvider$(T.SpeechRecognitionErrorL())))(),
    EventStreamProviderOfSpeechRecognitionEventL: () => (G$.EventStreamProviderOfSpeechRecognitionEventL = dart.constFn(html$.EventStreamProvider$(T.SpeechRecognitionEventL())))(),
    EventStreamProviderOfSpeechSynthesisEventL: () => (G$.EventStreamProviderOfSpeechSynthesisEventL = dart.constFn(html$.EventStreamProvider$(T$6.SpeechSynthesisEventL())))(),
    MapBaseOfString$String: () => (G$.MapBaseOfString$String = dart.constFn(collection.MapBase$(dart_rti.findType("core|String"), dart_rti.findType("core|String"))))(),
    _WrappedListOfTableSectionElement: () => (G$._WrappedListOfTableSectionElement = dart.constFn(html$._WrappedList$(T$6.TableSectionElement())))(),
    _WrappedListOfTableRowElement: () => (G$._WrappedListOfTableRowElement = dart.constFn(html$._WrappedList$(T$6.TableRowElement())))(),
    _WrappedListOfTableCellElement: () => (G$._WrappedListOfTableCellElement = dart.constFn(html$._WrappedList$(T$6.TableCellElement())))(),
    ListBaseOfTextTrackCue: () => (G$.ListBaseOfTextTrackCue = dart.constFn(collection.ListBase$(dart_rti.findType("html|TextTrackCue"))))(),
    ImmutableListMixinOfTextTrackCue: () => (G$.ImmutableListMixinOfTextTrackCue = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|TextTrackCue"))))(),
    ListBaseOfTextTrack: () => (G$.ListBaseOfTextTrack = dart.constFn(collection.ListBase$(dart_rti.findType("html|TextTrack"))))(),
    ImmutableListMixinOfTextTrack: () => (G$.ImmutableListMixinOfTextTrack = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|TextTrack"))))(),
    EventStreamProviderOfTrackEventL: () => (G$.EventStreamProviderOfTrackEventL = dart.constFn(html$.EventStreamProvider$(T$6.TrackEventL())))(),
    ListBaseOfTouch: () => (G$.ListBaseOfTouch = dart.constFn(collection.ListBase$(dart_rti.findType("html|Touch"))))(),
    ImmutableListMixinOfTouch: () => (G$.ImmutableListMixinOfTouch = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|Touch"))))(),
    EventStreamProviderOfCloseEventL: () => (G$.EventStreamProviderOfCloseEventL = dart.constFn(html$.EventStreamProvider$(T$6.CloseEventL())))(),
    CompleterOfnum: () => (G$.CompleterOfnum = dart.constFn(async.Completer$(T$.num())))(),
    CompleterOfFileSystem: () => (G$.CompleterOfFileSystem = dart.constFn(async.Completer$(T$6.FileSystem())))(),
    EventStreamProviderOfDeviceMotionEventL: () => (G$.EventStreamProviderOfDeviceMotionEventL = dart.constFn(html$.EventStreamProvider$(T$6.DeviceMotionEventL())))(),
    EventStreamProviderOfDeviceOrientationEventL: () => (G$.EventStreamProviderOfDeviceOrientationEventL = dart.constFn(html$.EventStreamProvider$(T$6.DeviceOrientationEventL())))(),
    EventStreamProviderOfAnimationEventL: () => (G$.EventStreamProviderOfAnimationEventL = dart.constFn(html$.EventStreamProvider$(T$6.AnimationEventL())))(),
    EventStreamProviderOfBeforeUnloadEventL: () => (G$.EventStreamProviderOfBeforeUnloadEventL = dart.constFn(html$.EventStreamProvider$(T$6.BeforeUnloadEventL())))(),
    ListBaseOfCssRule: () => (G$.ListBaseOfCssRule = dart.constFn(collection.ListBase$(dart_rti.findType("html|CssRule"))))(),
    ImmutableListMixinOfCssRule: () => (G$.ImmutableListMixinOfCssRule = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|CssRule"))))(),
    ListBaseOfGamepadN: () => (G$.ListBaseOfGamepadN = dart.constFn(collection.ListBase$(dart_rti.findType("html|Gamepad?"))))(),
    ImmutableListMixinOfGamepadN: () => (G$.ImmutableListMixinOfGamepadN = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|Gamepad?"))))(),
    ListBaseOfSpeechRecognitionResult: () => (G$.ListBaseOfSpeechRecognitionResult = dart.constFn(collection.ListBase$(dart_rti.findType("html|SpeechRecognitionResult"))))(),
    ImmutableListMixinOfSpeechRecognitionResult: () => (G$.ImmutableListMixinOfSpeechRecognitionResult = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|SpeechRecognitionResult"))))(),
    ListBaseOfStyleSheet: () => (G$.ListBaseOfStyleSheet = dart.constFn(collection.ListBase$(dart_rti.findType("html|StyleSheet"))))(),
    ImmutableListMixinOfStyleSheet: () => (G$.ImmutableListMixinOfStyleSheet = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("html|StyleSheet"))))(),
    ListOfCssClassSetImpl: () => (G$.ListOfCssClassSetImpl = dart.constFn(core.List$(T$6.CssClassSetImpl())))(),
    _IdentityHashSetOfString: () => (G$._IdentityHashSetOfString = dart.constFn(collection._IdentityHashSet$(T$.String())))(),
    SetBaseOfString: () => (G$.SetBaseOfString = dart.constFn(collection.SetBase$(dart_rti.findType("core|String"))))(),
    _CustomEventStreamImplOfKeyEvent: () => (G$._CustomEventStreamImplOfKeyEvent = dart.constFn(html$._CustomEventStreamImpl$(dart_rti.findType("html|KeyEvent"))))(),
    LinkedHashSetOfString: () => (G$.LinkedHashSetOfString = dart.constFn(collection.LinkedHashSet$(T$.String())))(),
    IdentityMapOfString$Function: () => (G$.IdentityMapOfString$Function = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$.Function())))(),
    JSArrayOfKeyEvent: () => (G$.JSArrayOfKeyEvent = dart.constFn(_interceptors.JSArray$(T$6.KeyEvent())))(),
    EventStreamProviderOfKeyEvent: () => (G$.EventStreamProviderOfKeyEvent = dart.constFn(html$.EventStreamProvider$(dart_rti.findType("html|KeyEvent"))))(),
    JSArrayOfNodeValidator: () => (G$.JSArrayOfNodeValidator = dart.constFn(_interceptors.JSArray$(T$6.NodeValidator())))(),
    ListBaseOfLength: () => (G$.ListBaseOfLength = dart.constFn(collection.ListBase$(dart_rti.findType("svg|Length"))))(),
    ImmutableListMixinOfLength: () => (G$.ImmutableListMixinOfLength = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("svg|Length"))))(),
    ListBaseOfNumber: () => (G$.ListBaseOfNumber = dart.constFn(collection.ListBase$(dart_rti.findType("svg|Number"))))(),
    ImmutableListMixinOfNumber: () => (G$.ImmutableListMixinOfNumber = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("svg|Number"))))(),
    ListBaseOfTransform: () => (G$.ListBaseOfTransform = dart.constFn(collection.ListBase$(dart_rti.findType("svg|Transform"))))(),
    ImmutableListMixinOfTransform: () => (G$.ImmutableListMixinOfTransform = dart.constFn(html$.ImmutableListMixin$(dart_rti.findType("svg|Transform"))))(),
    CompleterOfObject: () => (G$.CompleterOfObject = dart.constFn(async.Completer$(T$.Object())))(),
    EventStreamProviderOfAudioProcessingEventL: () => (G$.EventStreamProviderOfAudioProcessingEventL = dart.constFn(html$.EventStreamProvider$(T$7.AudioProcessingEventL())))(),
    MapOfSymbol$ObjectN: () => (G$.MapOfSymbol$ObjectN = dart.constFn(core.Map$(T$.Symbol(), T$.ObjectN())))(),
    ListOfint: () => (G$.ListOfint = dart.constFn(core.List$(T$.int())))(),
    IterableOfint: () => (G$.IterableOfint = dart.constFn(core.Iterable$(dart_rti.findType("core|int"))))(),
    MapOfString$ListOfString: () => (G$.MapOfString$ListOfString = dart.constFn(core.Map$(T$.String(), T$0.ListOfString())))(),
    IdentityMapOfString$ListOfString: () => (G$.IdentityMapOfString$ListOfString = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$0.ListOfString())))(),
    ListOfUint8List: () => (G$.ListOfUint8List = dart.constFn(core.List$(T$.Uint8List())))(),
    ListQueueOf_StoredMessage: () => (G$.ListQueueOf_StoredMessage = dart.constFn(collection.ListQueue$(T$8._StoredMessage())))(),
    IdentityMapOfString$_Channel: () => (G$.IdentityMapOfString$_Channel = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$8._Channel())))(),
    JSArrayOfShadow: () => (G$.JSArrayOfShadow = dart.constFn(_interceptors.JSArray$(T$9.Shadow())))(),
    IterableOfPathMetric: () => (G$.IterableOfPathMetric = dart.constFn(core.Iterable$(dart_rti.findType("ui|PathMetric"))))(),
    JSArrayOfSemanticsNodeUpdate: () => (G$.JSArrayOfSemanticsNodeUpdate = dart.constFn(_interceptors.JSArray$(T$9.SemanticsNodeUpdate())))(),
    CompleterOfvoid: () => (G$.CompleterOfvoid = dart.constFn(async.Completer$(T$.void())))(),
    LinkedMapOfObjectTodynamic$DomEventListener: () => (G$.LinkedMapOfObjectTodynamic$DomEventListener = dart.constFn(_js_helper.LinkedMap$(T$1.ObjectTodynamic(), T$9.DomEventListener())))(),
    JSArrayOfDomCanvasElement: () => (G$.JSArrayOfDomCanvasElement = dart.constFn(_interceptors.JSArray$(T$9.DomCanvasElement())))(),
    JSArrayOfSaveStackEntry: () => (G$.JSArrayOfSaveStackEntry = dart.constFn(_interceptors.JSArray$(T$9.SaveStackEntry())))(),
    ListOfSaveClipEntry: () => (G$.ListOfSaveClipEntry = dart.constFn(core.List$(T$9.SaveClipEntry())))(),
    JSArrayOfSaveClipEntry: () => (G$.JSArrayOfSaveClipEntry = dart.constFn(_interceptors.JSArray$(T$9.SaveClipEntry())))(),
    UniqueRefOfSkColorFilter: () => (G$.UniqueRefOfSkColorFilter = dart.constFn(_engine.UniqueRef$(T$9.SkColorFilter())))(),
    IdentityMapOfint$EmbeddedViewParams: () => (G$.IdentityMapOfint$EmbeddedViewParams = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$9.EmbeddedViewParams())))(),
    IdentityMapOfint$ViewClipChain: () => (G$.IdentityMapOfint$ViewClipChain = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$9.ViewClipChain())))(),
    LinkedHashSetOfint: () => (G$.LinkedHashSetOfint = dart.constFn(collection.LinkedHashSet$(T$.int())))(),
    IdentityMapOfint$SetOfString: () => (G$.IdentityMapOfint$SetOfString = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$6.SetOfString())))(),
    JSArrayOfDomElement: () => (G$.JSArrayOfDomElement = dart.constFn(_interceptors.JSArray$(T$9.DomElement())))(),
    JSArrayOfCkPicture: () => (G$.JSArrayOfCkPicture = dart.constFn(_interceptors.JSArray$(T$9.CkPicture())))(),
    ListOfRenderingEntity: () => (G$.ListOfRenderingEntity = dart.constFn(core.List$(T$9.RenderingEntity())))(),
    JSArrayOfMutator: () => (G$.JSArrayOfMutator = dart.constFn(_interceptors.JSArray$(T$9.Mutator())))(),
    ListOfMutator: () => (G$.ListOfMutator = dart.constFn(core.List$(T$9.Mutator())))(),
    IterableOfMutator: () => (G$.IterableOfMutator = dart.constFn(core.Iterable$(dart_rti.findType("_engine|Mutator"))))(),
    JSArrayOfCkPictureRecorder: () => (G$.JSArrayOfCkPictureRecorder = dart.constFn(_interceptors.JSArray$(T$9.CkPictureRecorder())))(),
    JSArrayOfUnregisteredFont: () => (G$.JSArrayOfUnregisteredFont = dart.constFn(_interceptors.JSArray$(T$9.UnregisteredFont())))(),
    JSArrayOfRegisteredFont: () => (G$.JSArrayOfRegisteredFont = dart.constFn(_interceptors.JSArray$(T$9.RegisteredFont())))(),
    IdentityMapOfString$ListOfSkFont: () => (G$.IdentityMapOfString$ListOfSkFont = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$9.ListOfSkFont())))(),
    JSArrayOfSkFont: () => (G$.JSArrayOfSkFont = dart.constFn(_interceptors.JSArray$(T$9.SkFont())))(),
    JSArrayOfFutureOfFontDownloadResult: () => (G$.JSArrayOfFutureOfFontDownloadResult = dart.constFn(_interceptors.JSArray$(T$9.FutureOfFontDownloadResult())))(),
    IdentityMapOfString$FontLoadError: () => (G$.IdentityMapOfString$FontLoadError = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$9.FontLoadError())))(),
    JSArrayOfRecOfStringAndUnregisteredFont: () => (G$.JSArrayOfRecOfStringAndUnregisteredFont = dart.constFn(_interceptors.JSArray$(T$9.RecOfStringAndUnregisteredFont())))(),
    ListOfbool: () => (G$.ListOfbool = dart.constFn(core.List$(T$.bool())))(),
    CountedRefOfCkImage$SkImage: () => (G$.CountedRefOfCkImage$SkImage = dart.constFn(_engine.CountedRef$(T$9.CkImage(), T$9.SkImage())))(),
    FutureOfByteData: () => (G$.FutureOfByteData = dart.constFn(async.Future$(T$0.ByteData())))(),
    UniqueRefOfSkImageFilter: () => (G$.UniqueRefOfSkImageFilter = dart.constFn(_engine.UniqueRef$(T$9.SkImageFilter())))(),
    UniqueRefOfSkAnimatedImage: () => (G$.UniqueRefOfSkAnimatedImage = dart.constFn(_engine.UniqueRef$(T$9.SkAnimatedImage())))(),
    FutureOfFrameInfo: () => (G$.FutureOfFrameInfo = dart.constFn(async.Future$(T$9.FrameInfo())))(),
    JSArrayOfLayer: () => (G$.JSArrayOfLayer = dart.constFn(_interceptors.JSArray$(T$9.Layer())))(),
    UniqueRefOfSkMaskFilter: () => (G$.UniqueRefOfSkMaskFilter = dart.constFn(_engine.UniqueRef$(T$10.SkMaskFilter())))(),
    LinkedMapOfEngineFlutterView$MultiSurfaceViewRasterizer: () => (G$.LinkedMapOfEngineFlutterView$MultiSurfaceViewRasterizer = dart.constFn(_js_helper.LinkedMap$(T$10.EngineFlutterView(), T$10.MultiSurfaceViewRasterizer())))(),
    DisplayCanvasFactoryOfSurface: () => (G$.DisplayCanvasFactoryOfSurface = dart.constFn(_engine.DisplayCanvasFactory$(T$10.Surface())))(),
    JSArrayOfCkCanvas: () => (G$.JSArrayOfCkCanvas = dart.constFn(_interceptors.JSArray$(T$9.CkCanvas())))(),
    LinkedMapOfEngineFlutterView$OffscreenCanvasViewRasterizer: () => (G$.LinkedMapOfEngineFlutterView$OffscreenCanvasViewRasterizer = dart.constFn(_js_helper.LinkedMap$(T$10.EngineFlutterView(), T$10.OffscreenCanvasViewRasterizer())))(),
    DisplayCanvasFactoryOfRenderCanvas: () => (G$.DisplayCanvasFactoryOfRenderCanvas = dart.constFn(_engine.DisplayCanvasFactory$(T$10.RenderCanvas())))(),
    JSArrayOfRenderingEntity: () => (G$.JSArrayOfRenderingEntity = dart.constFn(_interceptors.JSArray$(T$9.RenderingEntity())))(),
    UniqueRefOfSkPaint: () => (G$.UniqueRefOfSkPaint = dart.constFn(_engine.UniqueRef$(T$10.SkPaint())))(),
    ListOfSkShaderN: () => (G$.ListOfSkShaderN = dart.constFn(core.List$(T$10.SkShaderN())))(),
    UniqueRefOfSkShader: () => (G$.UniqueRefOfSkShader = dart.constFn(_engine.UniqueRef$(T$10.SkShader())))(),
    UniqueRefOfSkPath: () => (G$.UniqueRefOfSkPath = dart.constFn(_engine.UniqueRef$(T$10.SkPath())))(),
    UniqueRefOfSkContourMeasureIter: () => (G$.UniqueRefOfSkContourMeasureIter = dart.constFn(_engine.UniqueRef$(T$9.SkContourMeasureIter())))(),
    UniqueRefOfSkContourMeasure: () => (G$.UniqueRefOfSkContourMeasure = dart.constFn(_engine.UniqueRef$(T$10.SkContourMeasure())))(),
    UniqueRefOfSkPicture: () => (G$.UniqueRefOfSkPicture = dart.constFn(_engine.UniqueRef$(T$10.SkPicture())))(),
    IdentityMapOfint$ViewRasterizer: () => (G$.IdentityMapOfint$ViewRasterizer = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$9.ViewRasterizer())))(),
    IdentityMapOfString$FutureOfFragmentProgram: () => (G$.IdentityMapOfString$FutureOfFragmentProgram = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$10.FutureOfFragmentProgram())))(),
    JSArrayOfSkTextShadow: () => (G$.JSArrayOfSkTextShadow = dart.constFn(_interceptors.JSArray$(T$10.SkTextShadow())))(),
    JSArrayOfSkFontFeature: () => (G$.JSArrayOfSkFontFeature = dart.constFn(_interceptors.JSArray$(T$10.SkFontFeature())))(),
    JSArrayOfSkFontVariation: () => (G$.JSArrayOfSkFontVariation = dart.constFn(_interceptors.JSArray$(T$10.SkFontVariation())))(),
    UniqueRefOfSkParagraph: () => (G$.UniqueRefOfSkParagraph = dart.constFn(_engine.UniqueRef$(T$10.SkParagraph())))(),
    JSArrayOfTextBox: () => (G$.JSArrayOfTextBox = dart.constFn(_interceptors.JSArray$(T$9.TextBox())))(),
    JSArrayOfLineMetrics: () => (G$.JSArrayOfLineMetrics = dart.constFn(_interceptors.JSArray$(T$10.LineMetrics())))(),
    JSArrayOfdouble: () => (G$.JSArrayOfdouble = dart.constFn(_interceptors.JSArray$(T$.double())))(),
    JSArrayOfCkTextStyle: () => (G$.JSArrayOfCkTextStyle = dart.constFn(_interceptors.JSArray$(T$10.CkTextStyle())))(),
    UniqueRefOfSkVertices: () => (G$.UniqueRefOfSkVertices = dart.constFn(_engine.UniqueRef$(T$10.SkVertices())))(),
    FutureOfbool: () => (G$.FutureOfbool = dart.constFn(async.Future$(T$.bool())))(),
    FutureOfString: () => (G$.FutureOfString = dart.constFn(async.Future$(T$.String())))(),
    JSArrayOf_SaveElementStackEntry: () => (G$.JSArrayOf_SaveElementStackEntry = dart.constFn(_interceptors.JSArray$(T$10._SaveElementStackEntry())))(),
    JSArrayOfFallbackFontComponent: () => (G$.JSArrayOfFallbackFontComponent = dart.constFn(_interceptors.JSArray$(T$10.FallbackFontComponent())))(),
    JSArrayOfNotoFont: () => (G$.JSArrayOfNotoFont = dart.constFn(_interceptors.JSArray$(T$10.NotoFont())))(),
    ListOfFallbackFontComponent: () => (G$.ListOfFallbackFontComponent = dart.constFn(core.List$(T$10.FallbackFontComponent())))(),
    _UnicodePropertyLookupOfFallbackFontComponent: () => (G$._UnicodePropertyLookupOfFallbackFontComponent = dart.constFn(_engine._UnicodePropertyLookup$(T$10.FallbackFontComponent())))(),
    LinkedHashSetOfNotoFont: () => (G$.LinkedHashSetOfNotoFont = dart.constFn(collection.LinkedHashSet$(T$10.NotoFont())))(),
    IdentityMapOfString$NotoFont: () => (G$.IdentityMapOfString$NotoFont = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$10.NotoFont())))(),
    IdentityMapOfString$FutureOfvoid: () => (G$.IdentityMapOfString$FutureOfvoid = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$1.FutureOfvoid())))(),
    JSArrayOfFrameTiming: () => (G$.JSArrayOfFrameTiming = dart.constFn(_interceptors.JSArray$(T$10.FrameTiming())))(),
    JSArrayOfPersistedSurface: () => (G$.JSArrayOfPersistedSurface = dart.constFn(_interceptors.JSArray$(T$10.PersistedSurface())))(),
    JSArrayOfPersistedSurfaceN: () => (G$.JSArrayOfPersistedSurfaceN = dart.constFn(_interceptors.JSArray$(T$10.PersistedSurfaceN())))(),
    JSArrayOf_PersistedSurfaceMatch: () => (G$.JSArrayOf_PersistedSurfaceMatch = dart.constFn(_interceptors.JSArray$(T$10._PersistedSurfaceMatch())))(),
    LinkedMapOfPersistedSurfaceN$PersistedSurface: () => (G$.LinkedMapOfPersistedSurfaceN$PersistedSurface = dart.constFn(_js_helper.LinkedMap$(T$10.PersistedSurfaceN(), T$10.PersistedSurface())))(),
    LinkedHashSetOfPersistedSurface: () => (G$.LinkedHashSetOfPersistedSurface = dart.constFn(collection.LinkedHashSet$(T$10.PersistedSurface())))(),
    FrameReferenceOfPersistedSurface: () => (G$.FrameReferenceOfPersistedSurface = dart.constFn(_engine.FrameReference$(T$10.PersistedSurface())))(),
    CompleterOfFrameInfo: () => (G$.CompleterOfFrameInfo = dart.constFn(async.Completer$(T$9.FrameInfo())))(),
    FutureOfByteDataN: () => (G$.FutureOfByteDataN = dart.constFn(async.Future$(T$4.ByteDataN())))(),
    JSArrayOfOffset: () => (G$.JSArrayOfOffset = dart.constFn(_interceptors.JSArray$(T$8.Offset())))(),
    JSArrayOfConic: () => (G$.JSArrayOfConic = dart.constFn(_interceptors.JSArray$(T$11.Conic())))(),
    JSArrayOf_PathContourMeasure: () => (G$.JSArrayOf_PathContourMeasure = dart.constFn(_interceptors.JSArray$(T$11._PathContourMeasure())))(),
    JSArrayOf_PathSegment: () => (G$.JSArrayOf_PathSegment = dart.constFn(_interceptors.JSArray$(T$11._PathSegment())))(),
    JSArrayOfRadius: () => (G$.JSArrayOfRadius = dart.constFn(_interceptors.JSArray$(T$8.Radius())))(),
    CompleterOfImage: () => (G$.CompleterOfImage = dart.constFn(async.Completer$(T$10.Image())))(),
    CrossFrameCacheOfDomHTMLElement: () => (G$.CrossFrameCacheOfDomHTMLElement = dart.constFn(_engine.CrossFrameCache$(T$10.DomHTMLElement())))(),
    JSArrayOfPaintCommand: () => (G$.JSArrayOfPaintCommand = dart.constFn(_interceptors.JSArray$(T$11.PaintCommand())))(),
    JSArrayOfPathCommand: () => (G$.JSArrayOfPathCommand = dart.constFn(_interceptors.JSArray$(T$11.PathCommand())))(),
    JSArrayOfMatrix4: () => (G$.JSArrayOfMatrix4 = dart.constFn(_interceptors.JSArray$(T$9.Matrix4())))(),
    JSArrayOfRectN: () => (G$.JSArrayOfRectN = dart.constFn(_interceptors.JSArray$(T$9.RectN$1())))(),
    FutureOfHtmlFragmentProgram: () => (G$.FutureOfHtmlFragmentProgram = dart.constFn(async.Future$(T$11.HtmlFragmentProgram())))(),
    CompleterOfHtmlImage: () => (G$.CompleterOfHtmlImage = dart.constFn(async.Completer$(T$10.HtmlImage())))(),
    JSArrayOfPersistedContainerSurface: () => (G$.JSArrayOfPersistedContainerSurface = dart.constFn(_interceptors.JSArray$(T$10.PersistedContainerSurface())))(),
    JSArrayOfShaderDeclaration: () => (G$.JSArrayOfShaderDeclaration = dart.constFn(_interceptors.JSArray$(T$11.ShaderDeclaration())))(),
    JSArrayOfShaderMethod: () => (G$.JSArrayOfShaderMethod = dart.constFn(_interceptors.JSArray$(T$11.ShaderMethod())))(),
    IdentityMapOfString$DomEventListener: () => (G$.IdentityMapOfString$DomEventListener = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$9.DomEventListener())))(),
    IdentityMapOfint$int: () => (G$.IdentityMapOfint$int = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$.int())))(),
    IdentityMapOfint$VoidTovoid: () => (G$.IdentityMapOfint$VoidTovoid = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$.VoidTovoid())))(),
    JSArrayOfLayerSlice: () => (G$.JSArrayOfLayerSlice = dart.constFn(_interceptors.JSArray$(T$11.LayerSlice())))(),
    JSArrayOfPictureDrawCommand: () => (G$.JSArrayOfPictureDrawCommand = dart.constFn(_interceptors.JSArray$(T$11.PictureDrawCommand())))(),
    JSArrayOfPlatformView: () => (G$.JSArrayOfPlatformView = dart.constFn(_interceptors.JSArray$(T$11.PlatformView())))(),
    IdentityMapOfString$bool: () => (G$.IdentityMapOfString$bool = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$.bool())))(),
    ListOfNotoFont: () => (G$.ListOfNotoFont = dart.constFn(core.List$(T$10.NotoFont())))(),
    JSArrayOfboolTovoid: () => (G$.JSArrayOfboolTovoid = dart.constFn(_interceptors.JSArray$(T$1.boolTovoid())))(),
    JSArrayOfEngineFlutterDisplay: () => (G$.JSArrayOfEngineFlutterDisplay = dart.constFn(_interceptors.JSArray$(T$10.EngineFlutterDisplay())))(),
    LinkedHashSetOfFlutterView: () => (G$.LinkedHashSetOfFlutterView = dart.constFn(collection.LinkedHashSet$(T$11.FlutterView())))(),
    JSArrayOfbool: () => (G$.JSArrayOfbool = dart.constFn(_interceptors.JSArray$(T$.bool())))(),
    JSArrayOfLocale: () => (G$.JSArrayOfLocale = dart.constFn(_interceptors.JSArray$(T$9.Locale())))(),
    JSArrayOfAppLifecycleStateTovoid: () => (G$.JSArrayOfAppLifecycleStateTovoid = dart.constFn(_interceptors.JSArray$(T$11.AppLifecycleStateTovoid())))(),
    JSArrayOfStreamSubscriptionOfvoid: () => (G$.JSArrayOfStreamSubscriptionOfvoid = dart.constFn(_interceptors.JSArray$(T$11.StreamSubscriptionOfvoid())))(),
    IdentityMapOfint$DomElement: () => (G$.IdentityMapOfint$DomElement = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$9.DomElement())))(),
    IdentityMapOfint$String: () => (G$.IdentityMapOfint$String = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$.String())))(),
    JSArrayOfRecOf__: () => (G$.JSArrayOfRecOf__ = dart.constFn(_interceptors.JSArray$(T$11.RecOf__())))(),
    JSArrayOfPointerData: () => (G$.JSArrayOfPointerData = dart.constFn(_interceptors.JSArray$(T$11.PointerData())))(),
    JSArrayOfListener: () => (G$.JSArrayOfListener = dart.constFn(_interceptors.JSArray$(T$11.Listener())))(),
    IdentityMapOfint$_ButtonSanitizer: () => (G$.IdentityMapOfint$_ButtonSanitizer = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$11._ButtonSanitizer())))(),
    JSArrayOfDomPointerEvent: () => (G$.JSArrayOfDomPointerEvent = dart.constFn(_interceptors.JSArray$(T$11.DomPointerEvent())))(),
    IdentityMapOfint$_PointerDeviceState: () => (G$.IdentityMapOfint$_PointerDeviceState = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$11._PointerDeviceState())))(),
    IdentityMapOfString$Timer: () => (G$.IdentityMapOfString$Timer = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$1.Timer())))(),
    IdentityMapOfString$GlProgramN: () => (G$.IdentityMapOfString$GlProgramN = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$11.GlProgramN())))(),
    JSArrayOfSliceContainer: () => (G$.JSArrayOfSliceContainer = dart.constFn(_interceptors.JSArray$(T$11.SliceContainer())))(),
    JSArrayOfScenePicture: () => (G$.JSArrayOfScenePicture = dart.constFn(_interceptors.JSArray$(T$11.ScenePicture())))(),
    LinkedMapOfScenePicture$DomImageBitmap: () => (G$.LinkedMapOfScenePicture$DomImageBitmap = dart.constFn(_js_helper.LinkedMap$(T$11.ScenePicture(), T$9.DomImageBitmap())))(),
    ListOfSliceContainerN: () => (G$.ListOfSliceContainerN = dart.constFn(core.List$(T$11.SliceContainerN())))(),
    JSArrayOfRoleManager: () => (G$.JSArrayOfRoleManager = dart.constFn(_interceptors.JSArray$(T$12.RoleManager())))(),
    JSArrayOfRecOf__$1: () => (G$.JSArrayOfRecOf__$1 = dart.constFn(_interceptors.JSArray$(T$12.RecOf__$1())))(),
    JSArrayOfRecOf__$2: () => (G$.JSArrayOfRecOf__$2 = dart.constFn(_interceptors.JSArray$(T$12.RecOf__$2())))(),
    JSArrayOfSemanticsObject: () => (G$.JSArrayOfSemanticsObject = dart.constFn(_interceptors.JSArray$(T$12.SemanticsObject())))(),
    JSArrayOfGestureModeTovoid: () => (G$.JSArrayOfGestureModeTovoid = dart.constFn(_interceptors.JSArray$(T$12.GestureModeTovoid())))(),
    IdentityMapOfint$SemanticsObject: () => (G$.IdentityMapOfint$SemanticsObject = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$12.SemanticsObject())))(),
    JSArrayOfVoidTovoid: () => (G$.JSArrayOfVoidTovoid = dart.constFn(_interceptors.JSArray$(T$.VoidTovoid())))(),
    LinkedHashSetOfSemanticsObject: () => (G$.LinkedHashSetOfSemanticsObject = dart.constFn(collection.LinkedHashSet$(T$12.SemanticsObject())))(),
    IdentityMapOfint$ListOfint: () => (G$.IdentityMapOfint$ListOfint = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$.ListOfint())))(),
    JSArrayOfDomSubscription: () => (G$.JSArrayOfDomSubscription = dart.constFn(_interceptors.JSArray$(T$12.DomSubscription())))(),
    _TypedDataBufferOfint: () => (G$._TypedDataBufferOfint = dart.constFn(_engine._TypedDataBuffer$(dart_rti.findType("core|int"))))(),
    ListOfUniformData: () => (G$.ListOfUniformData = dart.constFn(core.List$(T$12.UniformData())))(),
    JSArrayOfObjectNTovoid: () => (G$.JSArrayOfObjectNTovoid = dart.constFn(_interceptors.JSArray$(T$.ObjectNTovoid())))(),
    JSArrayOfTestHistoryEntry: () => (G$.JSArrayOfTestHistoryEntry = dart.constFn(_interceptors.JSArray$(T$12.TestHistoryEntry())))(),
    JSArrayOfParagraphSpan: () => (G$.JSArrayOfParagraphSpan = dart.constFn(_interceptors.JSArray$(T$12.ParagraphSpan())))(),
    JSArrayOfStyleNode: () => (G$.JSArrayOfStyleNode = dart.constFn(_interceptors.JSArray$(T$12.StyleNode())))(),
    JSArrayOfFutureOfRecOfStringAndFontLoadErrorN: () => (G$.JSArrayOfFutureOfRecOfStringAndFontLoadErrorN = dart.constFn(_interceptors.JSArray$(T$12.FutureOfRecOfStringAndFontLoadErrorN())))(),
    JSArrayOfDomFontFace: () => (G$.JSArrayOfDomFontFace = dart.constFn(_interceptors.JSArray$(T$12.DomFontFace())))(),
    JSArrayOfFontLoadError: () => (G$.JSArrayOfFontLoadError = dart.constFn(_interceptors.JSArray$(T$9.FontLoadError())))(),
    JSArrayOfLayoutFragment: () => (G$.JSArrayOfLayoutFragment = dart.constFn(_interceptors.JSArray$(T$12.LayoutFragment())))(),
    JSArrayOfLayoutFragmentN: () => (G$.JSArrayOfLayoutFragmentN = dart.constFn(_interceptors.JSArray$(T$12.LayoutFragmentN())))(),
    JSArrayOfParagraphLine: () => (G$.JSArrayOfParagraphLine = dart.constFn(_interceptors.JSArray$(T$12.ParagraphLine())))(),
    LinkedMapOfTextHeightStyle$TextHeightRuler: () => (G$.LinkedMapOfTextHeightStyle$TextHeightRuler = dart.constFn(_js_helper.LinkedMap$(T$12.TextHeightStyle(), T$12.TextHeightRuler())))(),
    IdentityMapOfString$DomHTMLElement: () => (G$.IdentityMapOfString$DomHTMLElement = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$10.DomHTMLElement())))(),
    IdentityMapOfString$AutofillInfo: () => (G$.IdentityMapOfString$AutofillInfo = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$12.AutofillInfo())))(),
    IdentityMapOfStringN$dynamic: () => (G$.IdentityMapOfStringN$dynamic = dart.constFn(_js_helper.IdentityMap$(T$.StringN(), T$.dynamic())))(),
    ListOfdouble: () => (G$.ListOfdouble = dart.constFn(core.List$(T$.double())))(),
    StreamControllerOfSizeN: () => (G$.StreamControllerOfSizeN = dart.constFn(async.StreamController$(T$12.SizeN())))(),
    StreamControllerOfdouble: () => (G$.StreamControllerOfdouble = dart.constFn(async.StreamController$(T$.double())))(),
    IdentityMapOfint$EngineFlutterView: () => (G$.IdentityMapOfint$EngineFlutterView = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$10.EngineFlutterView())))(),
    IdentityMapOfint$JsFlutterViewOptions: () => (G$.IdentityMapOfint$JsFlutterViewOptions = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$12.JsFlutterViewOptions())))(),
    StreamControllerOfint: () => (G$.StreamControllerOfint = dart.constFn(async.StreamController$(T$.int())))(),
    DomIteratorWrapperOfDomSegment: () => (G$.DomIteratorWrapperOfDomSegment = dart.constFn(_engine.DomIteratorWrapper$(T$13.DomSegment())))(),
    JSArrayOfObjectN$1: () => (G$.JSArrayOfObjectN$1 = dart.constFn(_interceptors.JSArray$(T$.ObjectN())))(),
    JSArrayOfFontFamily: () => (G$.JSArrayOfFontFamily = dart.constFn(_interceptors.JSArray$(T$13.FontFamily())))(),
    _SimpleCallbackSinkOfObjectN: () => (G$._SimpleCallbackSinkOfObjectN = dart.constFn(convert._SimpleCallbackSink$(T$.ObjectN())))(),
    JSArrayOfPaintRequest: () => (G$.JSArrayOfPaintRequest = dart.constFn(_interceptors.JSArray$(T$13.PaintRequest())))(),
    JSArrayOfFrameReference: () => (G$.JSArrayOfFrameReference = dart.constFn(_interceptors.JSArray$(T$13.FrameReference())))(),
    JSArrayOfPersistedSurfaceStateN: () => (G$.JSArrayOfPersistedSurfaceStateN = dart.constFn(_interceptors.JSArray$(T$13.PersistedSurfaceStateN())))(),
    JSArrayOfFutureOfvoid: () => (G$.JSArrayOfFutureOfvoid = dart.constFn(_interceptors.JSArray$(T$1.FutureOfvoid())))(),
    UnicodePropertyLookupOfLineCharProperty: () => (G$.UnicodePropertyLookupOfLineCharProperty = dart.constFn(_engine.UnicodePropertyLookup$(T$13.LineCharProperty())))(),
    JSArrayOfLineBreakFragment: () => (G$.JSArrayOfLineBreakFragment = dart.constFn(_interceptors.JSArray$(T$12.LineBreakFragment())))(),
    JSArrayOfBidiFragment: () => (G$.JSArrayOfBidiFragment = dart.constFn(_interceptors.JSArray$(T$12.BidiFragment())))(),
    JSArrayOfSkFontSlant: () => (G$.JSArrayOfSkFontSlant = dart.constFn(_interceptors.JSArray$(T$13.SkFontSlant())))(),
    JSArrayOfSkFontWeight: () => (G$.JSArrayOfSkFontWeight = dart.constFn(_interceptors.JSArray$(T$13.SkFontWeight())))(),
    JSArrayOfSkAffinity: () => (G$.JSArrayOfSkAffinity = dart.constFn(_interceptors.JSArray$(T$13.SkAffinity())))(),
    JSArrayOfSkTextDirection: () => (G$.JSArrayOfSkTextDirection = dart.constFn(_interceptors.JSArray$(T$10.SkTextDirection())))(),
    JSArrayOfSkTextAlign: () => (G$.JSArrayOfSkTextAlign = dart.constFn(_interceptors.JSArray$(T$13.SkTextAlign())))(),
    JSArrayOfSkTextHeightBehavior: () => (G$.JSArrayOfSkTextHeightBehavior = dart.constFn(_interceptors.JSArray$(T$13.SkTextHeightBehavior())))(),
    JSArrayOfSkRectHeightStyle: () => (G$.JSArrayOfSkRectHeightStyle = dart.constFn(_interceptors.JSArray$(T$13.SkRectHeightStyle())))(),
    JSArrayOfSkRectWidthStyle: () => (G$.JSArrayOfSkRectWidthStyle = dart.constFn(_interceptors.JSArray$(T$13.SkRectWidthStyle())))(),
    JSArrayOfSkVertexMode: () => (G$.JSArrayOfSkVertexMode = dart.constFn(_interceptors.JSArray$(T$10.SkVertexMode())))(),
    JSArrayOfSkPointMode: () => (G$.JSArrayOfSkPointMode = dart.constFn(_interceptors.JSArray$(T$13.SkPointMode())))(),
    JSArrayOfSkClipOp: () => (G$.JSArrayOfSkClipOp = dart.constFn(_interceptors.JSArray$(T$13.SkClipOp())))(),
    JSArrayOfSkFillType: () => (G$.JSArrayOfSkFillType = dart.constFn(_interceptors.JSArray$(T$13.SkFillType())))(),
    JSArrayOfSkPathOp: () => (G$.JSArrayOfSkPathOp = dart.constFn(_interceptors.JSArray$(T$13.SkPathOp())))(),
    JSArrayOfSkBlurStyle: () => (G$.JSArrayOfSkBlurStyle = dart.constFn(_interceptors.JSArray$(T$13.SkBlurStyle())))(),
    JSArrayOfSkStrokeCap: () => (G$.JSArrayOfSkStrokeCap = dart.constFn(_interceptors.JSArray$(T$13.SkStrokeCap())))(),
    JSArrayOfSkPaintStyle: () => (G$.JSArrayOfSkPaintStyle = dart.constFn(_interceptors.JSArray$(T$13.SkPaintStyle())))(),
    JSArrayOfSkBlendMode: () => (G$.JSArrayOfSkBlendMode = dart.constFn(_interceptors.JSArray$(T$13.SkBlendMode())))(),
    JSArrayOfSkStrokeJoin: () => (G$.JSArrayOfSkStrokeJoin = dart.constFn(_interceptors.JSArray$(T$13.SkStrokeJoin())))(),
    JSArrayOfSkTileMode: () => (G$.JSArrayOfSkTileMode = dart.constFn(_interceptors.JSArray$(T$13.SkTileMode())))(),
    LinkedMapOfFilterQuality$CkFilterOptions: () => (G$.LinkedMapOfFilterQuality$CkFilterOptions = dart.constFn(_js_helper.LinkedMap$(T$9.FilterQuality(), T$13.CkFilterOptions())))(),
    JSArrayOfSkTextDecorationStyle: () => (G$.JSArrayOfSkTextDecorationStyle = dart.constFn(_interceptors.JSArray$(T$13.SkTextDecorationStyle())))(),
    JSArrayOfSkTextBaseline: () => (G$.JSArrayOfSkTextBaseline = dart.constFn(_interceptors.JSArray$(T$10.SkTextBaseline())))(),
    JSArrayOfSkPlaceholderAlignment: () => (G$.JSArrayOfSkPlaceholderAlignment = dart.constFn(_interceptors.JSArray$(T$10.SkPlaceholderAlignment())))(),
    LruCacheOfString$RecOf__: () => (G$.LruCacheOfString$RecOf__ = dart.constFn(_engine.LruCache$(T$.String(), T$13.RecOf__$4())))(),
    LinkedMapOfIntlSegmenterGranularity$DomSegmenter: () => (G$.LinkedMapOfIntlSegmenterGranularity$DomSegmenter = dart.constFn(_js_helper.LinkedMap$(T$10.IntlSegmenterGranularity(), T$13.DomSegmenter())))(),
    JSArrayOfBitmapCanvas: () => (G$.JSArrayOfBitmapCanvas = dart.constFn(_interceptors.JSArray$(T$11.BitmapCanvas())))(),
    LinkedMapOfPersistedSurface$DebugSurfaceStats: () => (G$.LinkedMapOfPersistedSurface$DebugSurfaceStats = dart.constFn(_js_helper.LinkedMap$(T$10.PersistedSurface(), T$13.DebugSurfaceStats())))(),
    JSArrayOfMapOfPersistedSurface$DebugSurfaceStats: () => (G$.JSArrayOfMapOfPersistedSurface$DebugSurfaceStats = dart.constFn(_interceptors.JSArray$(T$13.MapOfPersistedSurface$DebugSurfaceStats())))(),
    IdentityMapOfint$FlutterHtmlKeyboardEventTobool: () => (G$.IdentityMapOfint$FlutterHtmlKeyboardEventTobool = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$11.FlutterHtmlKeyboardEventTobool())))(),
    JSArrayOf_LogMessage: () => (G$.JSArrayOf_LogMessage = dart.constFn(_interceptors.JSArray$(T$13._LogMessage())))(),
    UnicodePropertyLookupOfTextDirectionN: () => (G$.UnicodePropertyLookupOfTextDirectionN = dart.constFn(_engine.UnicodePropertyLookup$(T$10.TextDirectionN())))(),
    UnicodeRangeOfTextDirectionL: () => (G$.UnicodeRangeOfTextDirectionL = dart.constFn(_engine.UnicodeRange$(T$9.TextDirectionL())))(),
    JSArrayOfUnicodeRangeOfTextDirection: () => (G$.JSArrayOfUnicodeRangeOfTextDirection = dart.constFn(_interceptors.JSArray$(T$13.UnicodeRangeOfTextDirection())))(),
    UnicodePropertyLookupOfWordCharProperty: () => (G$.UnicodePropertyLookupOfWordCharProperty = dart.constFn(_engine.UnicodePropertyLookup$(T$13.WordCharProperty())))(),
    IdentityMapOfString$DomHTMLFormElement: () => (G$.IdentityMapOfString$DomHTMLFormElement = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$12.DomHTMLFormElement())))(),
    MapOfint$String: () => (G$.MapOfint$String = dart.constFn(core.Map$(T$.int(), T$.String())))(),
    MapEntryOfint$String: () => (G$.MapEntryOfint$String = dart.constFn(core.MapEntry$(T$.int(), T$.String())))(),
    IdentityMapOfString$MapOfString$int: () => (G$.IdentityMapOfString$MapOfString$int = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$6.MapOfString$int())))(),
    JSArrayOfCookie: () => (G$.JSArrayOfCookie = dart.constFn(_interceptors.JSArray$(T$13.Cookie())))(),
    HashMapOfString$StringN: () => (G$.HashMapOfString$StringN = dart.constFn(collection.HashMap$(T$.String(), T$.StringN())))(),
    IdentityMapOfString$StringN: () => (G$.IdentityMapOfString$StringN = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$.StringN())))(),
    UnmodifiableMapViewOfString$StringN: () => (G$.UnmodifiableMapViewOfString$StringN = dart.constFn(collection.UnmodifiableMapView$(T$.String(), T$.StringN())))(),
    IdentityMapOfString$_HttpProfileData: () => (G$.IdentityMapOfString$_HttpProfileData = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$13._HttpProfileData())))(),
    JSArrayOf_HttpProfileEvent: () => (G$.JSArrayOf_HttpProfileEvent = dart.constFn(_interceptors.JSArray$(T$13._HttpProfileEvent())))(),
    CompleterOfbool: () => (G$.CompleterOfbool = dart.constFn(async.Completer$(T$.bool())))(),
    StreamOfUint8List: () => (G$.StreamOfUint8List = dart.constFn(async.Stream$(dart_rti.findType("typed_data|Uint8List"))))(),
    FutureOfHttpClientResponse: () => (G$.FutureOfHttpClientResponse = dart.constFn(async.Future$(T$13.HttpClientResponse())))(),
    _EmptyStreamOfUint8List: () => (G$._EmptyStreamOfUint8List = dart.constFn(async._EmptyStream$(T$.Uint8List())))(),
    ConverterOfListOfint$Uint8List: () => (G$.ConverterOfListOfint$Uint8List = dart.constFn(convert.Converter$(dart_rti.findType("core|List<core|int>"), dart_rti.findType("typed_data|Uint8List"))))(),
    _StreamSinkImplOfListOfint$1: () => (G$._StreamSinkImplOfListOfint$1 = dart.constFn(_http._StreamSinkImpl$(dart_rti.findType("core|List<core|int>"))))(),
    _HttpOutboundMessageOfHttpResponse: () => (G$._HttpOutboundMessageOfHttpResponse = dart.constFn(_http._HttpOutboundMessage$(dart_rti.findType("_http|HttpResponse"))))(),
    CompleterOfHttpClientResponse: () => (G$.CompleterOfHttpClientResponse = dart.constFn(async.Completer$(T$13.HttpClientResponse())))(),
    JSArrayOfRedirectInfo: () => (G$.JSArrayOfRedirectInfo = dart.constFn(_interceptors.JSArray$(T$13.RedirectInfo())))(),
    JSArrayOfFuture: () => (G$.JSArrayOfFuture = dart.constFn(_interceptors.JSArray$(T$0.Future())))(),
    _HttpOutboundMessageOfHttpClientResponse: () => (G$._HttpOutboundMessageOfHttpClientResponse = dart.constFn(_http._HttpOutboundMessage$(dart_rti.findType("_http|HttpClientResponse"))))(),
    CompleterOfSocket: () => (G$.CompleterOfSocket = dart.constFn(async.Completer$(T$3.Socket())))(),
    StreamControllerOfListOfint: () => (G$.StreamControllerOfListOfint = dart.constFn(async.StreamController$(T$.ListOfint())))(),
    CompleterOf_HttpIncoming: () => (G$.CompleterOf_HttpIncoming = dart.constFn(async.Completer$(T$13._HttpIncoming())))(),
    FutureOfSocketN: () => (G$.FutureOfSocketN = dart.constFn(async.Future$(T$13.SocketN())))(),
    _HashSetOf_HttpClientConnection: () => (G$._HashSetOf_HttpClientConnection = dart.constFn(collection._HashSet$(T$13._HttpClientConnection())))(),
    _HashSetOfConnectionTaskOfSocket: () => (G$._HashSetOfConnectionTaskOfSocket = dart.constFn(collection._HashSet$(T$13.ConnectionTaskOfSocket())))(),
    ListQueueOfVoidTovoid: () => (G$.ListQueueOfVoidTovoid = dart.constFn(collection.ListQueue$(T$.VoidTovoid())))(),
    FutureOf_ConnectionInfo: () => (G$.FutureOf_ConnectionInfo = dart.constFn(async.Future$(T$13._ConnectionInfo())))(),
    CompleterOf_ConnectionInfo: () => (G$.CompleterOf_ConnectionInfo = dart.constFn(async.Completer$(T$13._ConnectionInfo())))(),
    IdentityMapOfString$_ConnectionTarget: () => (G$.IdentityMapOfString$_ConnectionTarget = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$13._ConnectionTarget())))(),
    JSArrayOf_Credentials: () => (G$.JSArrayOf_Credentials = dart.constFn(_interceptors.JSArray$(T$13._Credentials())))(),
    JSArrayOf_ProxyCredentials: () => (G$.JSArrayOf_ProxyCredentials = dart.constFn(_interceptors.JSArray$(T$13._ProxyCredentials())))(),
    FutureOf_HttpClientRequest: () => (G$.FutureOf_HttpClientRequest = dart.constFn(async.Future$(T$13._HttpClientRequest())))(),
    LinkedListEntryOf_HttpConnection: () => (G$.LinkedListEntryOf_HttpConnection = dart.constFn(collection.LinkedListEntry$(dart_rti.findType("_http|_HttpConnection"))))(),
    IdentityMapOfint$_HttpConnection: () => (G$.IdentityMapOfint$_HttpConnection = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$13._HttpConnection())))(),
    LinkedListOf_HttpConnection: () => (G$.LinkedListOf_HttpConnection = dart.constFn(collection.LinkedList$(T$13._HttpConnection())))(),
    StreamControllerOfHttpRequest: () => (G$.StreamControllerOfHttpRequest = dart.constFn(async.StreamController$(T$13.HttpRequest$1())))(),
    StreamOfHttpRequest: () => (G$.StreamOfHttpRequest = dart.constFn(async.Stream$(dart_rti.findType("_http|HttpRequest"))))(),
    IdentityMapOfint$_HttpServer: () => (G$.IdentityMapOfint$_HttpServer = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$13._HttpServer())))(),
    JSArrayOf_Proxy: () => (G$.JSArrayOf_Proxy = dart.constFn(_interceptors.JSArray$(T$13._Proxy())))(),
    StreamControllerOf_HttpIncoming: () => (G$.StreamControllerOf_HttpIncoming = dart.constFn(async.StreamController$(T$13._HttpIncoming())))(),
    StreamOf_HttpIncoming: () => (G$.StreamOf_HttpIncoming = dart.constFn(async.Stream$(dart_rti.findType("_http|_HttpIncoming"))))(),
    IdentityMapOfString$_HttpSession: () => (G$.IdentityMapOfString$_HttpSession = dart.constFn(_js_helper.IdentityMap$(T$.String(), T$14._HttpSession())))(),
    StreamTransformerBaseOfListOfint$dynamic: () => (G$.StreamTransformerBaseOfListOfint$dynamic = dart.constFn(async.StreamTransformerBase$(dart_rti.findType("core|List<core|int>"), dart_rti.findType("@"))))(),
    StreamControllerOfWebSocket: () => (G$.StreamControllerOfWebSocket = dart.constFn(async.StreamController$(T$14.WebSocket())))(),
    FutureOfWebSocket: () => (G$.FutureOfWebSocket = dart.constFn(async.Future$(T$14.WebSocket())))(),
    StreamTransformerBaseOfHttpRequest$WebSocket: () => (G$.StreamTransformerBaseOfHttpRequest$WebSocket = dart.constFn(async.StreamTransformerBase$(dart_rti.findType("_http|HttpRequest"), dart_rti.findType("_http|WebSocket"))))(),
    StreamTransformerBaseOfdynamic$ListOfint: () => (G$.StreamTransformerBaseOfdynamic$ListOfint = dart.constFn(async.StreamTransformerBase$(dart_rti.findType("@"), dart_rti.findType("core|List<core|int>"))))(),
    CompleterOfWebSocket: () => (G$.CompleterOfWebSocket = dart.constFn(async.Completer$(T$14.WebSocket())))(),
    IdentityMapOfint$_WebSocketImpl: () => (G$.IdentityMapOfint$_WebSocketImpl = dart.constFn(_js_helper.IdentityMap$(T$.int(), T$14._WebSocketImpl())))()
  };
  var S = {
    _delete$1: dart.privateName(indexed_db, "_delete"),
    $delete: dartx.delete = Symbol("dartx.delete"),
    _update: dart.privateName(indexed_db, "_update"),
    $next: dartx.next = Symbol("dartx.next"),
    $direction: dartx.direction = Symbol("dartx.direction"),
    $key: dartx.key = Symbol("dartx.key"),
    $primaryKey: dartx.primaryKey = Symbol("dartx.primaryKey"),
    $source: dartx.source = Symbol("dartx.source"),
    $advance: dartx.advance = Symbol("dartx.advance"),
    $continuePrimaryKey: dartx.continuePrimaryKey = Symbol("dartx.continuePrimaryKey"),
    _update_1: dart.privateName(indexed_db, "_update_1"),
    _get_value: dart.privateName(indexed_db, "_get_value"),
    $value: dartx.value = Symbol("dartx.value"),
    _createObjectStore: dart.privateName(indexed_db, "_createObjectStore"),
    $createObjectStore: dartx.createObjectStore = Symbol("dartx.createObjectStore"),
    _transaction: dart.privateName(indexed_db, "_transaction"),
    $transaction: dartx.transaction = Symbol("dartx.transaction"),
    $transactionStore: dartx.transactionStore = Symbol("dartx.transactionStore"),
    $transactionList: dartx.transactionList = Symbol("dartx.transactionList"),
    $transactionStores: dartx.transactionStores = Symbol("dartx.transactionStores"),
    $objectStoreNames: dartx.objectStoreNames = Symbol("dartx.objectStoreNames"),
    $version: dartx.version = Symbol("dartx.version"),
    $close: dartx.close = Symbol("dartx.close"),
    _createObjectStore_1: dart.privateName(indexed_db, "_createObjectStore_1"),
    _createObjectStore_2: dart.privateName(indexed_db, "_createObjectStore_2"),
    $deleteObjectStore: dartx.deleteObjectStore = Symbol("dartx.deleteObjectStore"),
    $onAbort: dartx.onAbort = Symbol("dartx.onAbort"),
    $onClose: dartx.onClose = Symbol("dartx.onClose"),
    $onError: dartx.onError = Symbol("dartx.onError"),
    $onVersionChange: dartx.onVersionChange = Symbol("dartx.onVersionChange"),
    $on: dartx.on = Symbol("dartx.on"),
    _addEventListener: dart.privateName(html$, "_addEventListener"),
    $addEventListener: dartx.addEventListener = Symbol("dartx.addEventListener"),
    _removeEventListener: dart.privateName(html$, "_removeEventListener"),
    $removeEventListener: dartx.removeEventListener = Symbol("dartx.removeEventListener"),
    $dispatchEvent: dartx.dispatchEvent = Symbol("dartx.dispatchEvent"),
    EventStreamProvider__eventType: dart.privateName(html$, "EventStreamProvider._eventType"),
    _open: dart.privateName(indexed_db, "_open"),
    $onUpgradeNeeded: dartx.onUpgradeNeeded = Symbol("dartx.onUpgradeNeeded"),
    $onBlocked: dartx.onBlocked = Symbol("dartx.onBlocked"),
    $open: dartx.open = Symbol("dartx.open"),
    _deleteDatabase: dart.privateName(indexed_db, "_deleteDatabase"),
    $onSuccess: dartx.onSuccess = Symbol("dartx.onSuccess"),
    $deleteDatabase: dartx.deleteDatabase = Symbol("dartx.deleteDatabase"),
    $supportsDatabaseNames: dartx.supportsDatabaseNames = Symbol("dartx.supportsDatabaseNames"),
    $cmp: dartx.cmp = Symbol("dartx.cmp"),
    _count$2: dart.privateName(indexed_db, "_count"),
    $count: dartx.count = Symbol("dartx.count"),
    _get: dart.privateName(indexed_db, "_get"),
    $get: dartx.get = Symbol("dartx.get"),
    _getKey: dart.privateName(indexed_db, "_getKey"),
    $getKey: dartx.getKey = Symbol("dartx.getKey"),
    _openCursor: dart.privateName(indexed_db, "_openCursor"),
    $openCursor: dartx.openCursor = Symbol("dartx.openCursor"),
    _openKeyCursor: dart.privateName(indexed_db, "_openKeyCursor"),
    $openKeyCursor: dartx.openKeyCursor = Symbol("dartx.openKeyCursor"),
    $keyPath: dartx.keyPath = Symbol("dartx.keyPath"),
    $multiEntry: dartx.multiEntry = Symbol("dartx.multiEntry"),
    $objectStore: dartx.objectStore = Symbol("dartx.objectStore"),
    $unique: dartx.unique = Symbol("dartx.unique"),
    $getAll: dartx.getAll = Symbol("dartx.getAll"),
    $getAllKeys: dartx.getAllKeys = Symbol("dartx.getAllKeys"),
    $lower: dartx.lower = Symbol("dartx.lower"),
    $lowerOpen: dartx.lowerOpen = Symbol("dartx.lowerOpen"),
    $upper: dartx.upper = Symbol("dartx.upper"),
    $upperOpen: dartx.upperOpen = Symbol("dartx.upperOpen"),
    $includes: dartx.includes = Symbol("dartx.includes"),
    _add$3: dart.privateName(indexed_db, "_add"),
    _clear$2: dart.privateName(indexed_db, "_clear"),
    _put: dart.privateName(indexed_db, "_put"),
    $put: dartx.put = Symbol("dartx.put"),
    $getObject: dartx.getObject = Symbol("dartx.getObject"),
    _createIndex: dart.privateName(indexed_db, "_createIndex"),
    $createIndex: dartx.createIndex = Symbol("dartx.createIndex"),
    $autoIncrement: dartx.autoIncrement = Symbol("dartx.autoIncrement"),
    $indexNames: dartx.indexNames = Symbol("dartx.indexNames"),
    _add_1: dart.privateName(indexed_db, "_add_1"),
    _add_2: dart.privateName(indexed_db, "_add_2"),
    _createIndex_1: dart.privateName(indexed_db, "_createIndex_1"),
    _createIndex_2: dart.privateName(indexed_db, "_createIndex_2"),
    $deleteIndex: dartx.deleteIndex = Symbol("dartx.deleteIndex"),
    $index: dartx.index = Symbol("dartx.index"),
    _put_1: dart.privateName(indexed_db, "_put_1"),
    _put_2: dart.privateName(indexed_db, "_put_2"),
    $result: dartx.result = Symbol("dartx.result"),
    $type: dartx.type = Symbol("dartx.type"),
    _observe_1: dart.privateName(indexed_db, "_observe_1"),
    $observe: dartx.observe = Symbol("dartx.observe"),
    $unobserve: dartx.unobserve = Symbol("dartx.unobserve"),
    $database: dartx.database = Symbol("dartx.database"),
    $records: dartx.records = Symbol("dartx.records"),
    $error: dartx.error = Symbol("dartx.error"),
    $readyState: dartx.readyState = Symbol("dartx.readyState"),
    _get_result: dart.privateName(indexed_db, "_get_result"),
    $onComplete: dartx.onComplete = Symbol("dartx.onComplete"),
    $completed: dartx.completed = Symbol("dartx.completed"),
    $db: dartx.db = Symbol("dartx.db"),
    $mode: dartx.mode = Symbol("dartx.mode"),
    $abort: dartx.abort = Symbol("dartx.abort"),
    $dataLoss: dartx.dataLoss = Symbol("dartx.dataLoss"),
    $dataLossMessage: dartx.dataLossMessage = Symbol("dartx.dataLossMessage"),
    $newVersion: dartx.newVersion = Symbol("dartx.newVersion"),
    $oldVersion: dartx.oldVersion = Symbol("dartx.oldVersion"),
    $target: dartx.target = Symbol("dartx.target"),
    _createEvent: dart.privateName(html$, "_createEvent"),
    _initEvent: dart.privateName(html$, "_initEvent"),
    _selector: dart.privateName(html$, "_selector"),
    $currentTarget: dartx.currentTarget = Symbol("dartx.currentTarget"),
    $matches: dartx.matches = Symbol("dartx.matches"),
    $parent: dartx.parent = Symbol("dartx.parent"),
    $matchingTarget: dartx.matchingTarget = Symbol("dartx.matchingTarget"),
    $path: dartx.path = Symbol("dartx.path"),
    $bubbles: dartx.bubbles = Symbol("dartx.bubbles"),
    $cancelable: dartx.cancelable = Symbol("dartx.cancelable"),
    $composed: dartx.composed = Symbol("dartx.composed"),
    _get_currentTarget: dart.privateName(html$, "_get_currentTarget"),
    $defaultPrevented: dartx.defaultPrevented = Symbol("dartx.defaultPrevented"),
    $eventPhase: dartx.eventPhase = Symbol("dartx.eventPhase"),
    $isTrusted: dartx.isTrusted = Symbol("dartx.isTrusted"),
    _get_target: dart.privateName(html$, "_get_target"),
    $timeStamp: dartx.timeStamp = Symbol("dartx.timeStamp"),
    $composedPath: dartx.composedPath = Symbol("dartx.composedPath"),
    $preventDefault: dartx.preventDefault = Symbol("dartx.preventDefault"),
    $stopImmediatePropagation: dartx.stopImmediatePropagation = Symbol("dartx.stopImmediatePropagation"),
    $stopPropagation: dartx.stopPropagation = Symbol("dartx.stopPropagation"),
    $nonce: dartx.nonce = Symbol("dartx.nonce"),
    $createFragment: dartx.createFragment = Symbol("dartx.createFragment"),
    $nodes: dartx.nodes = Symbol("dartx.nodes"),
    $attributes: dartx.attributes = Symbol("dartx.attributes"),
    _getAttribute: dart.privateName(html$, "_getAttribute"),
    $getAttribute: dartx.getAttribute = Symbol("dartx.getAttribute"),
    _getAttributeNS: dart.privateName(html$, "_getAttributeNS"),
    $getAttributeNS: dartx.getAttributeNS = Symbol("dartx.getAttributeNS"),
    _hasAttribute: dart.privateName(html$, "_hasAttribute"),
    $hasAttribute: dartx.hasAttribute = Symbol("dartx.hasAttribute"),
    _hasAttributeNS: dart.privateName(html$, "_hasAttributeNS"),
    $hasAttributeNS: dartx.hasAttributeNS = Symbol("dartx.hasAttributeNS"),
    _removeAttribute: dart.privateName(html$, "_removeAttribute"),
    $removeAttribute: dartx.removeAttribute = Symbol("dartx.removeAttribute"),
    _removeAttributeNS: dart.privateName(html$, "_removeAttributeNS"),
    $removeAttributeNS: dartx.removeAttributeNS = Symbol("dartx.removeAttributeNS"),
    _setAttribute: dart.privateName(html$, "_setAttribute"),
    $setAttribute: dartx.setAttribute = Symbol("dartx.setAttribute"),
    _setAttributeNS: dart.privateName(html$, "_setAttributeNS"),
    $setAttributeNS: dartx.setAttributeNS = Symbol("dartx.setAttributeNS"),
    $children: dartx.children = Symbol("dartx.children"),
    _children: dart.privateName(html$, "_children"),
    _querySelectorAll: dart.privateName(html$, "_querySelectorAll"),
    $querySelectorAll: dartx.querySelectorAll = Symbol("dartx.querySelectorAll"),
    _setApplyScroll: dart.privateName(html$, "_setApplyScroll"),
    $setApplyScroll: dartx.setApplyScroll = Symbol("dartx.setApplyScroll"),
    _setDistributeScroll: dart.privateName(html$, "_setDistributeScroll"),
    $setDistributeScroll: dartx.setDistributeScroll = Symbol("dartx.setDistributeScroll"),
    $classes: dartx.classes = Symbol("dartx.classes"),
    $dataset: dartx.dataset = Symbol("dartx.dataset"),
    $getNamespacedAttributes: dartx.getNamespacedAttributes = Symbol("dartx.getNamespacedAttributes"),
    _getComputedStyle: dart.privateName(html$, "_getComputedStyle"),
    $getComputedStyle: dartx.getComputedStyle = Symbol("dartx.getComputedStyle"),
    $client: dartx.client = Symbol("dartx.client"),
    $offsetLeft: dartx.offsetLeft = Symbol("dartx.offsetLeft"),
    $offsetTop: dartx.offsetTop = Symbol("dartx.offsetTop"),
    $offsetWidth: dartx.offsetWidth = Symbol("dartx.offsetWidth"),
    $offsetHeight: dartx.offsetHeight = Symbol("dartx.offsetHeight"),
    $offset: dartx.offset = Symbol("dartx.offset"),
    $append: dartx.append = Symbol("dartx.append"),
    $appendText: dartx.appendText = Symbol("dartx.appendText"),
    $insertAdjacentHtml: dartx.insertAdjacentHtml = Symbol("dartx.insertAdjacentHtml"),
    $appendHtml: dartx.appendHtml = Symbol("dartx.appendHtml"),
    $enteredView: dartx.enteredView = Symbol("dartx.enteredView"),
    $attached: dartx.attached = Symbol("dartx.attached"),
    $leftView: dartx.leftView = Symbol("dartx.leftView"),
    $detached: dartx.detached = Symbol("dartx.detached"),
    _getClientRects: dart.privateName(html$, "_getClientRects"),
    $getClientRects: dartx.getClientRects = Symbol("dartx.getClientRects"),
    _animate: dart.privateName(html$, "_animate"),
    $animate: dartx.animate = Symbol("dartx.animate"),
    $attributeChanged: dartx.attributeChanged = Symbol("dartx.attributeChanged"),
    _localName: dart.privateName(html$, "_localName"),
    $localName: dartx.localName = Symbol("dartx.localName"),
    _namespaceUri: dart.privateName(html$, "_namespaceUri"),
    $namespaceUri: dartx.namespaceUri = Symbol("dartx.namespaceUri"),
    _scrollIntoView: dart.privateName(html$, "_scrollIntoView"),
    $scrollIntoView: dartx.scrollIntoView = Symbol("dartx.scrollIntoView"),
    _insertAdjacentText: dart.privateName(html$, "_insertAdjacentText"),
    _insertAdjacentNode: dart.privateName(html$, "_insertAdjacentNode"),
    $insertAdjacentText: dartx.insertAdjacentText = Symbol("dartx.insertAdjacentText"),
    _insertAdjacentHtml: dart.privateName(html$, "_insertAdjacentHtml"),
    _insertAdjacentElement: dart.privateName(html$, "_insertAdjacentElement"),
    $insertAdjacentElement: dartx.insertAdjacentElement = Symbol("dartx.insertAdjacentElement"),
    $nextNode: dartx.nextNode = Symbol("dartx.nextNode"),
    $matchesWithAncestors: dartx.matchesWithAncestors = Symbol("dartx.matchesWithAncestors"),
    $createShadowRoot: dartx.createShadowRoot = Symbol("dartx.createShadowRoot"),
    $shadowRoot: dartx.shadowRoot = Symbol("dartx.shadowRoot"),
    $contentEdge: dartx.contentEdge = Symbol("dartx.contentEdge"),
    $paddingEdge: dartx.paddingEdge = Symbol("dartx.paddingEdge"),
    $borderEdge: dartx.borderEdge = Symbol("dartx.borderEdge"),
    $marginEdge: dartx.marginEdge = Symbol("dartx.marginEdge"),
    $offsetTo: dartx.offsetTo = Symbol("dartx.offsetTo"),
    $documentOffset: dartx.documentOffset = Symbol("dartx.documentOffset"),
    $createHtmlDocument: dartx.createHtmlDocument = Symbol("dartx.createHtmlDocument"),
    $createElement: dartx.createElement = Symbol("dartx.createElement"),
    $baseUri: dartx.baseUri = Symbol("dartx.baseUri"),
    $head: dartx.head = Symbol("dartx.head"),
    _canBeUsedToCreateContextualFragment: dart.privateName(html$, "_canBeUsedToCreateContextualFragment"),
    _innerHtml: dart.privateName(html$, "_innerHtml"),
    _cannotBeUsedToCreateContextualFragment: dart.privateName(html$, "_cannotBeUsedToCreateContextualFragment"),
    $setInnerHtml: dartx.setInnerHtml = Symbol("dartx.setInnerHtml"),
    $innerHtml: dartx.innerHtml = Symbol("dartx.innerHtml"),
    $text: dartx.text = Symbol("dartx.text"),
    $innerText: dartx.innerText = Symbol("dartx.innerText"),
    $offsetParent: dartx.offsetParent = Symbol("dartx.offsetParent"),
    $scrollHeight: dartx.scrollHeight = Symbol("dartx.scrollHeight"),
    $scrollLeft: dartx.scrollLeft = Symbol("dartx.scrollLeft"),
    $scrollTop: dartx.scrollTop = Symbol("dartx.scrollTop"),
    $scrollWidth: dartx.scrollWidth = Symbol("dartx.scrollWidth"),
    $requestFullscreen: dartx.requestFullscreen = Symbol("dartx.requestFullscreen"),
    $contentEditable: dartx.contentEditable = Symbol("dartx.contentEditable"),
    $dir: dartx.dir = Symbol("dartx.dir"),
    $draggable: dartx.draggable = Symbol("dartx.draggable"),
    $hidden: dartx.hidden = Symbol("dartx.hidden"),
    $inert: dartx.inert = Symbol("dartx.inert"),
    $inputMode: dartx.inputMode = Symbol("dartx.inputMode"),
    $isContentEditable: dartx.isContentEditable = Symbol("dartx.isContentEditable"),
    $lang: dartx.lang = Symbol("dartx.lang"),
    $spellcheck: dartx.spellcheck = Symbol("dartx.spellcheck"),
    $style: dartx.style = Symbol("dartx.style"),
    $tabIndex: dartx.tabIndex = Symbol("dartx.tabIndex"),
    $title: dartx.title = Symbol("dartx.title"),
    $translate: dartx.translate = Symbol("dartx.translate"),
    $blur: dartx.blur = Symbol("dartx.blur"),
    $click: dartx.click = Symbol("dartx.click"),
    $focus: dartx.focus = Symbol("dartx.focus"),
    $accessibleNode: dartx.accessibleNode = Symbol("dartx.accessibleNode"),
    $assignedSlot: dartx.assignedSlot = Symbol("dartx.assignedSlot"),
    _attributes$1: dart.privateName(html$, "_attributes"),
    $className: dartx.className = Symbol("dartx.className"),
    $clientHeight: dartx.clientHeight = Symbol("dartx.clientHeight"),
    $clientLeft: dartx.clientLeft = Symbol("dartx.clientLeft"),
    $clientTop: dartx.clientTop = Symbol("dartx.clientTop"),
    $clientWidth: dartx.clientWidth = Symbol("dartx.clientWidth"),
    $computedName: dartx.computedName = Symbol("dartx.computedName"),
    $computedRole: dartx.computedRole = Symbol("dartx.computedRole"),
    $id: dartx.id = Symbol("dartx.id"),
    $outerHtml: dartx.outerHtml = Symbol("dartx.outerHtml"),
    _scrollHeight: dart.privateName(html$, "_scrollHeight"),
    _scrollLeft: dart.privateName(html$, "_scrollLeft"),
    _scrollTop: dart.privateName(html$, "_scrollTop"),
    _scrollWidth: dart.privateName(html$, "_scrollWidth"),
    $slot: dartx.slot = Symbol("dartx.slot"),
    $styleMap: dartx.styleMap = Symbol("dartx.styleMap"),
    $tagName: dartx.tagName = Symbol("dartx.tagName"),
    _attachShadow_1: dart.privateName(html$, "_attachShadow_1"),
    $attachShadow: dartx.attachShadow = Symbol("dartx.attachShadow"),
    $closest: dartx.closest = Symbol("dartx.closest"),
    $getAnimations: dartx.getAnimations = Symbol("dartx.getAnimations"),
    $getAttributeNames: dartx.getAttributeNames = Symbol("dartx.getAttributeNames"),
    $getBoundingClientRect: dartx.getBoundingClientRect = Symbol("dartx.getBoundingClientRect"),
    $getDestinationInsertionPoints: dartx.getDestinationInsertionPoints = Symbol("dartx.getDestinationInsertionPoints"),
    $getElementsByClassName: dartx.getElementsByClassName = Symbol("dartx.getElementsByClassName"),
    _getElementsByTagName: dart.privateName(html$, "_getElementsByTagName"),
    $hasPointerCapture: dartx.hasPointerCapture = Symbol("dartx.hasPointerCapture"),
    $releasePointerCapture: dartx.releasePointerCapture = Symbol("dartx.releasePointerCapture"),
    $requestPointerLock: dartx.requestPointerLock = Symbol("dartx.requestPointerLock"),
    _scroll_1: dart.privateName(html$, "_scroll_1"),
    _scroll_2: dart.privateName(html$, "_scroll_2"),
    _scroll_3: dart.privateName(html$, "_scroll_3"),
    $scroll: dartx.scroll = Symbol("dartx.scroll"),
    _scrollBy_1: dart.privateName(html$, "_scrollBy_1"),
    _scrollBy_2: dart.privateName(html$, "_scrollBy_2"),
    _scrollBy_3: dart.privateName(html$, "_scrollBy_3"),
    $scrollBy: dartx.scrollBy = Symbol("dartx.scrollBy"),
    $scrollIntoViewIfNeeded: dartx.scrollIntoViewIfNeeded = Symbol("dartx.scrollIntoViewIfNeeded"),
    _scrollTo_1: dart.privateName(html$, "_scrollTo_1"),
    _scrollTo_2: dart.privateName(html$, "_scrollTo_2"),
    _scrollTo_3: dart.privateName(html$, "_scrollTo_3"),
    $scrollTo: dartx.scrollTo = Symbol("dartx.scrollTo"),
    $setPointerCapture: dartx.setPointerCapture = Symbol("dartx.setPointerCapture"),
    $after: dartx.after = Symbol("dartx.after"),
    $before: dartx.before = Symbol("dartx.before"),
    $nextElementSibling: dartx.nextElementSibling = Symbol("dartx.nextElementSibling"),
    $previousElementSibling: dartx.previousElementSibling = Symbol("dartx.previousElementSibling"),
    _childElementCount: dart.privateName(html$, "_childElementCount"),
    _firstElementChild: dart.privateName(html$, "_firstElementChild"),
    _lastElementChild: dart.privateName(html$, "_lastElementChild"),
    $querySelector: dartx.querySelector = Symbol("dartx.querySelector"),
    $onBeforeCopy: dartx.onBeforeCopy = Symbol("dartx.onBeforeCopy"),
    $onBeforeCut: dartx.onBeforeCut = Symbol("dartx.onBeforeCut"),
    $onBeforePaste: dartx.onBeforePaste = Symbol("dartx.onBeforePaste"),
    $onBlur: dartx.onBlur = Symbol("dartx.onBlur"),
    $onCanPlay: dartx.onCanPlay = Symbol("dartx.onCanPlay"),
    $onCanPlayThrough: dartx.onCanPlayThrough = Symbol("dartx.onCanPlayThrough"),
    $onChange: dartx.onChange = Symbol("dartx.onChange"),
    $onClick: dartx.onClick = Symbol("dartx.onClick"),
    $onContextMenu: dartx.onContextMenu = Symbol("dartx.onContextMenu"),
    $onCopy: dartx.onCopy = Symbol("dartx.onCopy"),
    $onCut: dartx.onCut = Symbol("dartx.onCut"),
    $onDoubleClick: dartx.onDoubleClick = Symbol("dartx.onDoubleClick"),
    $onDrag: dartx.onDrag = Symbol("dartx.onDrag"),
    $onDragEnd: dartx.onDragEnd = Symbol("dartx.onDragEnd"),
    $onDragEnter: dartx.onDragEnter = Symbol("dartx.onDragEnter"),
    $onDragLeave: dartx.onDragLeave = Symbol("dartx.onDragLeave"),
    $onDragOver: dartx.onDragOver = Symbol("dartx.onDragOver"),
    $onDragStart: dartx.onDragStart = Symbol("dartx.onDragStart"),
    $onDrop: dartx.onDrop = Symbol("dartx.onDrop"),
    $onDurationChange: dartx.onDurationChange = Symbol("dartx.onDurationChange"),
    $onEmptied: dartx.onEmptied = Symbol("dartx.onEmptied"),
    $onEnded: dartx.onEnded = Symbol("dartx.onEnded"),
    $onFocus: dartx.onFocus = Symbol("dartx.onFocus"),
    $onInput: dartx.onInput = Symbol("dartx.onInput"),
    $onInvalid: dartx.onInvalid = Symbol("dartx.onInvalid"),
    $onKeyDown: dartx.onKeyDown = Symbol("dartx.onKeyDown"),
    $onKeyPress: dartx.onKeyPress = Symbol("dartx.onKeyPress"),
    $onKeyUp: dartx.onKeyUp = Symbol("dartx.onKeyUp"),
    $onLoad: dartx.onLoad = Symbol("dartx.onLoad"),
    $onLoadedData: dartx.onLoadedData = Symbol("dartx.onLoadedData"),
    $onLoadedMetadata: dartx.onLoadedMetadata = Symbol("dartx.onLoadedMetadata"),
    $onMouseDown: dartx.onMouseDown = Symbol("dartx.onMouseDown"),
    $onMouseEnter: dartx.onMouseEnter = Symbol("dartx.onMouseEnter"),
    $onMouseLeave: dartx.onMouseLeave = Symbol("dartx.onMouseLeave"),
    $onMouseMove: dartx.onMouseMove = Symbol("dartx.onMouseMove")
  };
  var S$ = {
    $onMouseOut: dartx.onMouseOut = Symbol("dartx.onMouseOut"),
    $onMouseOver: dartx.onMouseOver = Symbol("dartx.onMouseOver"),
    $onMouseUp: dartx.onMouseUp = Symbol("dartx.onMouseUp"),
    $onMouseWheel: dartx.onMouseWheel = Symbol("dartx.onMouseWheel"),
    $onPaste: dartx.onPaste = Symbol("dartx.onPaste"),
    $onPause: dartx.onPause = Symbol("dartx.onPause"),
    $onPlay: dartx.onPlay = Symbol("dartx.onPlay"),
    $onPlaying: dartx.onPlaying = Symbol("dartx.onPlaying"),
    $onRateChange: dartx.onRateChange = Symbol("dartx.onRateChange"),
    $onReset: dartx.onReset = Symbol("dartx.onReset"),
    $onResize: dartx.onResize = Symbol("dartx.onResize"),
    $onScroll: dartx.onScroll = Symbol("dartx.onScroll"),
    $onSearch: dartx.onSearch = Symbol("dartx.onSearch"),
    $onSeeked: dartx.onSeeked = Symbol("dartx.onSeeked"),
    $onSeeking: dartx.onSeeking = Symbol("dartx.onSeeking"),
    $onSelect: dartx.onSelect = Symbol("dartx.onSelect"),
    $onSelectStart: dartx.onSelectStart = Symbol("dartx.onSelectStart"),
    $onStalled: dartx.onStalled = Symbol("dartx.onStalled"),
    $onSubmit: dartx.onSubmit = Symbol("dartx.onSubmit"),
    $onSuspend: dartx.onSuspend = Symbol("dartx.onSuspend"),
    $onTimeUpdate: dartx.onTimeUpdate = Symbol("dartx.onTimeUpdate"),
    $onTouchCancel: dartx.onTouchCancel = Symbol("dartx.onTouchCancel"),
    $onTouchEnd: dartx.onTouchEnd = Symbol("dartx.onTouchEnd"),
    $onTouchEnter: dartx.onTouchEnter = Symbol("dartx.onTouchEnter"),
    $onTouchLeave: dartx.onTouchLeave = Symbol("dartx.onTouchLeave"),
    $onTouchMove: dartx.onTouchMove = Symbol("dartx.onTouchMove"),
    $onTouchStart: dartx.onTouchStart = Symbol("dartx.onTouchStart"),
    $onTransitionEnd: dartx.onTransitionEnd = Symbol("dartx.onTransitionEnd"),
    $onVolumeChange: dartx.onVolumeChange = Symbol("dartx.onVolumeChange"),
    $onWaiting: dartx.onWaiting = Symbol("dartx.onWaiting"),
    $onFullscreenChange: dartx.onFullscreenChange = Symbol("dartx.onFullscreenChange"),
    $onFullscreenError: dartx.onFullscreenError = Symbol("dartx.onFullscreenError"),
    $onWheel: dartx.onWheel = Symbol("dartx.onWheel"),
    _removeChild: dart.privateName(html$, "_removeChild"),
    _replaceChild: dart.privateName(html$, "_replaceChild"),
    $replaceWith: dartx.replaceWith = Symbol("dartx.replaceWith"),
    _this: dart.privateName(html$, "_this"),
    $insertAllBefore: dartx.insertAllBefore = Symbol("dartx.insertAllBefore"),
    _clearChildren: dart.privateName(html$, "_clearChildren"),
    $childNodes: dartx.childNodes = Symbol("dartx.childNodes"),
    $firstChild: dartx.firstChild = Symbol("dartx.firstChild"),
    $isConnected: dartx.isConnected = Symbol("dartx.isConnected"),
    $lastChild: dartx.lastChild = Symbol("dartx.lastChild"),
    $nodeName: dartx.nodeName = Symbol("dartx.nodeName"),
    $nodeType: dartx.nodeType = Symbol("dartx.nodeType"),
    $nodeValue: dartx.nodeValue = Symbol("dartx.nodeValue"),
    $ownerDocument: dartx.ownerDocument = Symbol("dartx.ownerDocument"),
    $parentNode: dartx.parentNode = Symbol("dartx.parentNode"),
    $previousNode: dartx.previousNode = Symbol("dartx.previousNode"),
    $clone: dartx.clone = Symbol("dartx.clone"),
    _getRootNode_1: dart.privateName(html$, "_getRootNode_1"),
    _getRootNode_2: dart.privateName(html$, "_getRootNode_2"),
    $getRootNode: dartx.getRootNode = Symbol("dartx.getRootNode"),
    $hasChildNodes: dartx.hasChildNodes = Symbol("dartx.hasChildNodes"),
    $insertBefore: dartx.insertBefore = Symbol("dartx.insertBefore"),
    _CustomEventStreamProvider__eventTypeGetter: dart.privateName(html$, "_CustomEventStreamProvider._eventTypeGetter"),
    $respondWith: dartx.respondWith = Symbol("dartx.respondWith"),
    $waitUntil: dartx.waitUntil = Symbol("dartx.waitUntil"),
    $quaternion: dartx.quaternion = Symbol("dartx.quaternion"),
    $populateMatrix: dartx.populateMatrix = Symbol("dartx.populateMatrix"),
    $activated: dartx.activated = Symbol("dartx.activated"),
    $hasReading: dartx.hasReading = Symbol("dartx.hasReading"),
    $timestamp: dartx.timestamp = Symbol("dartx.timestamp"),
    $start: dartx.start = Symbol("dartx.start"),
    $stop: dartx.stop = Symbol("dartx.stop"),
    $x: dartx.x = Symbol("dartx.x"),
    $y: dartx.y = Symbol("dartx.y"),
    $z: dartx.z = Symbol("dartx.z"),
    $activeDescendant: dartx.activeDescendant = Symbol("dartx.activeDescendant"),
    $atomic: dartx.atomic = Symbol("dartx.atomic"),
    $autocomplete: dartx.autocomplete = Symbol("dartx.autocomplete"),
    $busy: dartx.busy = Symbol("dartx.busy"),
    $checked: dartx.checked = Symbol("dartx.checked"),
    $colCount: dartx.colCount = Symbol("dartx.colCount"),
    $colIndex: dartx.colIndex = Symbol("dartx.colIndex"),
    $colSpan: dartx.colSpan = Symbol("dartx.colSpan"),
    $controls: dartx.controls = Symbol("dartx.controls"),
    $current: dartx.current = Symbol("dartx.current"),
    $describedBy: dartx.describedBy = Symbol("dartx.describedBy"),
    $details: dartx.details = Symbol("dartx.details"),
    $disabled: dartx.disabled = Symbol("dartx.disabled"),
    $errorMessage: dartx.errorMessage = Symbol("dartx.errorMessage"),
    $expanded: dartx.expanded = Symbol("dartx.expanded"),
    $flowTo: dartx.flowTo = Symbol("dartx.flowTo"),
    $hasPopUp: dartx.hasPopUp = Symbol("dartx.hasPopUp"),
    $invalid: dartx.invalid = Symbol("dartx.invalid"),
    $keyShortcuts: dartx.keyShortcuts = Symbol("dartx.keyShortcuts"),
    $label: dartx.label = Symbol("dartx.label"),
    $labeledBy: dartx.labeledBy = Symbol("dartx.labeledBy"),
    $level: dartx.level = Symbol("dartx.level"),
    $live: dartx.live = Symbol("dartx.live"),
    $modal: dartx.modal = Symbol("dartx.modal"),
    $multiline: dartx.multiline = Symbol("dartx.multiline"),
    $multiselectable: dartx.multiselectable = Symbol("dartx.multiselectable"),
    $orientation: dartx.orientation = Symbol("dartx.orientation"),
    $owns: dartx.owns = Symbol("dartx.owns"),
    $placeholder: dartx.placeholder = Symbol("dartx.placeholder"),
    $posInSet: dartx.posInSet = Symbol("dartx.posInSet"),
    $pressed: dartx.pressed = Symbol("dartx.pressed"),
    $readOnly: dartx.readOnly = Symbol("dartx.readOnly"),
    $relevant: dartx.relevant = Symbol("dartx.relevant"),
    $required: dartx.required = Symbol("dartx.required"),
    $role: dartx.role = Symbol("dartx.role"),
    $roleDescription: dartx.roleDescription = Symbol("dartx.roleDescription"),
    $rowCount: dartx.rowCount = Symbol("dartx.rowCount"),
    $rowIndex: dartx.rowIndex = Symbol("dartx.rowIndex"),
    $rowSpan: dartx.rowSpan = Symbol("dartx.rowSpan"),
    $selected: dartx.selected = Symbol("dartx.selected"),
    $setSize: dartx.setSize = Symbol("dartx.setSize"),
    $valueMax: dartx.valueMax = Symbol("dartx.valueMax"),
    $valueMin: dartx.valueMin = Symbol("dartx.valueMin"),
    $valueNow: dartx.valueNow = Symbol("dartx.valueNow"),
    $valueText: dartx.valueText = Symbol("dartx.valueText"),
    $appendChild: dartx.appendChild = Symbol("dartx.appendChild"),
    $onAccessibleClick: dartx.onAccessibleClick = Symbol("dartx.onAccessibleClick"),
    $onAccessibleContextMenu: dartx.onAccessibleContextMenu = Symbol("dartx.onAccessibleContextMenu"),
    $onAccessibleDecrement: dartx.onAccessibleDecrement = Symbol("dartx.onAccessibleDecrement"),
    $onAccessibleFocus: dartx.onAccessibleFocus = Symbol("dartx.onAccessibleFocus"),
    $onAccessibleIncrement: dartx.onAccessibleIncrement = Symbol("dartx.onAccessibleIncrement"),
    $onAccessibleScrollIntoView: dartx.onAccessibleScrollIntoView = Symbol("dartx.onAccessibleScrollIntoView"),
    __setter__: dart.privateName(html$, "__setter__"),
    $item: dartx.item = Symbol("dartx.item"),
    $illuminance: dartx.illuminance = Symbol("dartx.illuminance"),
    $download: dartx.download = Symbol("dartx.download"),
    $hreflang: dartx.hreflang = Symbol("dartx.hreflang"),
    $referrerPolicy: dartx.referrerPolicy = Symbol("dartx.referrerPolicy"),
    $rel: dartx.rel = Symbol("dartx.rel"),
    $hash: dartx.hash = Symbol("dartx.hash"),
    $host: dartx.host = Symbol("dartx.host"),
    $hostname: dartx.hostname = Symbol("dartx.hostname"),
    $href: dartx.href = Symbol("dartx.href"),
    $origin: dartx.origin = Symbol("dartx.origin"),
    $password: dartx.password = Symbol("dartx.password"),
    $pathname: dartx.pathname = Symbol("dartx.pathname"),
    $port: dartx.port = Symbol("dartx.port"),
    $protocol: dartx.protocol = Symbol("dartx.protocol"),
    $search: dartx.search = Symbol("dartx.search"),
    $username: dartx.username = Symbol("dartx.username"),
    $currentTime: dartx.currentTime = Symbol("dartx.currentTime"),
    $effect: dartx.effect = Symbol("dartx.effect"),
    $finished: dartx.finished = Symbol("dartx.finished"),
    $playState: dartx.playState = Symbol("dartx.playState"),
    $playbackRate: dartx.playbackRate = Symbol("dartx.playbackRate"),
    $ready: dartx.ready = Symbol("dartx.ready"),
    $startTime: dartx.startTime = Symbol("dartx.startTime"),
    $timeline: dartx.timeline = Symbol("dartx.timeline"),
    $cancel: dartx.cancel = Symbol("dartx.cancel"),
    $finish: dartx.finish = Symbol("dartx.finish"),
    $pause: dartx.pause = Symbol("dartx.pause"),
    $play: dartx.play = Symbol("dartx.play"),
    $reverse: dartx.reverse = Symbol("dartx.reverse"),
    $onCancel: dartx.onCancel = Symbol("dartx.onCancel"),
    $onFinish: dartx.onFinish = Symbol("dartx.onFinish"),
    $timing: dartx.timing = Symbol("dartx.timing"),
    _getComputedTiming_1: dart.privateName(html$, "_getComputedTiming_1"),
    $getComputedTiming: dartx.getComputedTiming = Symbol("dartx.getComputedTiming"),
    $delay: dartx.delay = Symbol("dartx.delay"),
    $duration: dartx.duration = Symbol("dartx.duration"),
    $easing: dartx.easing = Symbol("dartx.easing"),
    $endDelay: dartx.endDelay = Symbol("dartx.endDelay"),
    $fill: dartx.fill = Symbol("dartx.fill"),
    $iterationStart: dartx.iterationStart = Symbol("dartx.iterationStart"),
    $iterations: dartx.iterations = Symbol("dartx.iterations"),
    $animationName: dartx.animationName = Symbol("dartx.animationName"),
    $elapsedTime: dartx.elapsedTime = Symbol("dartx.elapsedTime"),
    $timelineTime: dartx.timelineTime = Symbol("dartx.timelineTime"),
    $registerAnimator: dartx.registerAnimator = Symbol("dartx.registerAnimator"),
    $status: dartx.status = Symbol("dartx.status"),
    $swapCache: dartx.swapCache = Symbol("dartx.swapCache"),
    $onCached: dartx.onCached = Symbol("dartx.onCached"),
    $onChecking: dartx.onChecking = Symbol("dartx.onChecking"),
    $onDownloading: dartx.onDownloading = Symbol("dartx.onDownloading"),
    $onNoUpdate: dartx.onNoUpdate = Symbol("dartx.onNoUpdate"),
    $onObsolete: dartx.onObsolete = Symbol("dartx.onObsolete"),
    $onProgress: dartx.onProgress = Symbol("dartx.onProgress"),
    $onUpdateReady: dartx.onUpdateReady = Symbol("dartx.onUpdateReady"),
    $reason: dartx.reason = Symbol("dartx.reason"),
    $url: dartx.url = Symbol("dartx.url"),
    $alt: dartx.alt = Symbol("dartx.alt"),
    $coords: dartx.coords = Symbol("dartx.coords"),
    $shape: dartx.shape = Symbol("dartx.shape"),
    $audioTracks: dartx.audioTracks = Symbol("dartx.audioTracks"),
    $autoplay: dartx.autoplay = Symbol("dartx.autoplay"),
    $buffered: dartx.buffered = Symbol("dartx.buffered"),
    $controlsList: dartx.controlsList = Symbol("dartx.controlsList"),
    $crossOrigin: dartx.crossOrigin = Symbol("dartx.crossOrigin"),
    $currentSrc: dartx.currentSrc = Symbol("dartx.currentSrc"),
    $defaultMuted: dartx.defaultMuted = Symbol("dartx.defaultMuted"),
    $defaultPlaybackRate: dartx.defaultPlaybackRate = Symbol("dartx.defaultPlaybackRate"),
    $disableRemotePlayback: dartx.disableRemotePlayback = Symbol("dartx.disableRemotePlayback"),
    $ended: dartx.ended = Symbol("dartx.ended"),
    $loop: dartx.loop = Symbol("dartx.loop"),
    $mediaKeys: dartx.mediaKeys = Symbol("dartx.mediaKeys"),
    $muted: dartx.muted = Symbol("dartx.muted"),
    $networkState: dartx.networkState = Symbol("dartx.networkState"),
    $paused: dartx.paused = Symbol("dartx.paused"),
    $played: dartx.played = Symbol("dartx.played"),
    $preload: dartx.preload = Symbol("dartx.preload"),
    $remote: dartx.remote = Symbol("dartx.remote"),
    $seekable: dartx.seekable = Symbol("dartx.seekable"),
    $seeking: dartx.seeking = Symbol("dartx.seeking"),
    $sinkId: dartx.sinkId = Symbol("dartx.sinkId"),
    $src: dartx.src = Symbol("dartx.src"),
    $srcObject: dartx.srcObject = Symbol("dartx.srcObject"),
    $textTracks: dartx.textTracks = Symbol("dartx.textTracks"),
    $videoTracks: dartx.videoTracks = Symbol("dartx.videoTracks"),
    $volume: dartx.volume = Symbol("dartx.volume"),
    $audioDecodedByteCount: dartx.audioDecodedByteCount = Symbol("dartx.audioDecodedByteCount"),
    $videoDecodedByteCount: dartx.videoDecodedByteCount = Symbol("dartx.videoDecodedByteCount"),
    $addTextTrack: dartx.addTextTrack = Symbol("dartx.addTextTrack"),
    $canPlayType: dartx.canPlayType = Symbol("dartx.canPlayType"),
    $captureStream: dartx.captureStream = Symbol("dartx.captureStream"),
    $load: dartx.load = Symbol("dartx.load"),
    $setMediaKeys: dartx.setMediaKeys = Symbol("dartx.setMediaKeys"),
    $setSinkId: dartx.setSinkId = Symbol("dartx.setSinkId"),
    $authenticatorData: dartx.authenticatorData = Symbol("dartx.authenticatorData"),
    $signature: dartx.signature = Symbol("dartx.signature"),
    $clientDataJson: dartx.clientDataJson = Symbol("dartx.clientDataJson"),
    $attestationObject: dartx.attestationObject = Symbol("dartx.attestationObject"),
    $state: dartx.state = Symbol("dartx.state"),
    $fetches: dartx.fetches = Symbol("dartx.fetches"),
    $request: dartx.request = Symbol("dartx.request"),
    $fetch: dartx.fetch = Symbol("dartx.fetch"),
    $getIds: dartx.getIds = Symbol("dartx.getIds"),
    $downloadTotal: dartx.downloadTotal = Symbol("dartx.downloadTotal"),
    $downloaded: dartx.downloaded = Symbol("dartx.downloaded"),
    $totalDownloadSize: dartx.totalDownloadSize = Symbol("dartx.totalDownloadSize"),
    $uploadTotal: dartx.uploadTotal = Symbol("dartx.uploadTotal"),
    $uploaded: dartx.uploaded = Symbol("dartx.uploaded"),
    $response: dartx.response = Symbol("dartx.response"),
    $updateUI: dartx.updateUI = Symbol("dartx.updateUI"),
    $visible: dartx.visible = Symbol("dartx.visible"),
    $detect: dartx.detect = Symbol("dartx.detect"),
    $charging: dartx.charging = Symbol("dartx.charging"),
    $chargingTime: dartx.chargingTime = Symbol("dartx.chargingTime"),
    $dischargingTime: dartx.dischargingTime = Symbol("dartx.dischargingTime"),
    $platforms: dartx.platforms = Symbol("dartx.platforms"),
    $userChoice: dartx.userChoice = Symbol("dartx.userChoice"),
    $prompt: dartx.prompt = Symbol("dartx.prompt"),
    $returnValue: dartx.returnValue = Symbol("dartx.returnValue"),
    $size: dartx.size = Symbol("dartx.size"),
    $slice: dartx.slice = Symbol("dartx.slice"),
    $data: dartx.data = Symbol("dartx.data"),
    $timecode: dartx.timecode = Symbol("dartx.timecode"),
    $characteristic: dartx.characteristic = Symbol("dartx.characteristic"),
    $uuid: dartx.uuid = Symbol("dartx.uuid"),
    $readValue: dartx.readValue = Symbol("dartx.readValue"),
    $writeValue: dartx.writeValue = Symbol("dartx.writeValue"),
    $bodyUsed: dartx.bodyUsed = Symbol("dartx.bodyUsed"),
    $arrayBuffer: dartx.arrayBuffer = Symbol("dartx.arrayBuffer"),
    $blob: dartx.blob = Symbol("dartx.blob"),
    $formData: dartx.formData = Symbol("dartx.formData"),
    $json: dartx.json = Symbol("dartx.json"),
    $onHashChange: dartx.onHashChange = Symbol("dartx.onHashChange"),
    $onMessage: dartx.onMessage = Symbol("dartx.onMessage"),
    $onOffline: dartx.onOffline = Symbol("dartx.onOffline"),
    $onOnline: dartx.onOnline = Symbol("dartx.onOnline"),
    $onPopState: dartx.onPopState = Symbol("dartx.onPopState"),
    $onStorage: dartx.onStorage = Symbol("dartx.onStorage"),
    $onUnload: dartx.onUnload = Symbol("dartx.onUnload"),
    $postMessage: dartx.postMessage = Symbol("dartx.postMessage"),
    $budgetAt: dartx.budgetAt = Symbol("dartx.budgetAt"),
    $time: dartx.time = Symbol("dartx.time"),
    $autofocus: dartx.autofocus = Symbol("dartx.autofocus"),
    $form: dartx.form = Symbol("dartx.form"),
    $formAction: dartx.formAction = Symbol("dartx.formAction"),
    $formEnctype: dartx.formEnctype = Symbol("dartx.formEnctype"),
    $formMethod: dartx.formMethod = Symbol("dartx.formMethod"),
    $formNoValidate: dartx.formNoValidate = Symbol("dartx.formNoValidate"),
    $formTarget: dartx.formTarget = Symbol("dartx.formTarget"),
    $labels: dartx.labels = Symbol("dartx.labels"),
    $validationMessage: dartx.validationMessage = Symbol("dartx.validationMessage"),
    $validity: dartx.validity = Symbol("dartx.validity"),
    $willValidate: dartx.willValidate = Symbol("dartx.willValidate"),
    $checkValidity: dartx.checkValidity = Symbol("dartx.checkValidity"),
    $reportValidity: dartx.reportValidity = Symbol("dartx.reportValidity"),
    $setCustomValidity: dartx.setCustomValidity = Symbol("dartx.setCustomValidity"),
    $wholeText: dartx.wholeText = Symbol("dartx.wholeText"),
    $splitText: dartx.splitText = Symbol("dartx.splitText"),
    $appendData: dartx.appendData = Symbol("dartx.appendData"),
    $deleteData: dartx.deleteData = Symbol("dartx.deleteData"),
    $insertData: dartx.insertData = Symbol("dartx.insertData"),
    $replaceData: dartx.replaceData = Symbol("dartx.replaceData"),
    $substringData: dartx.substringData = Symbol("dartx.substringData"),
    $has: dartx.has = Symbol("dartx.has"),
    $match: dartx.match = Symbol("dartx.match"),
    $methodData: dartx.methodData = Symbol("dartx.methodData"),
    $modifiers: dartx.modifiers = Symbol("dartx.modifiers"),
    $paymentRequestOrigin: dartx.paymentRequestOrigin = Symbol("dartx.paymentRequestOrigin"),
    $topLevelOrigin: dartx.topLevelOrigin = Symbol("dartx.topLevelOrigin"),
    $canvas: dartx.canvas = Symbol("dartx.canvas"),
    $requestFrame: dartx.requestFrame = Symbol("dartx.requestFrame"),
    $contentHint: dartx.contentHint = Symbol("dartx.contentHint"),
    $enabled: dartx.enabled = Symbol("dartx.enabled"),
    $kind: dartx.kind = Symbol("dartx.kind"),
    $applyConstraints: dartx.applyConstraints = Symbol("dartx.applyConstraints"),
    _getCapabilities_1: dart.privateName(html$, "_getCapabilities_1"),
    $getCapabilities: dartx.getCapabilities = Symbol("dartx.getCapabilities"),
    _getConstraints_1: dart.privateName(html$, "_getConstraints_1"),
    $getConstraints: dartx.getConstraints = Symbol("dartx.getConstraints"),
    _getSettings_1: dart.privateName(html$, "_getSettings_1"),
    $getSettings: dartx.getSettings = Symbol("dartx.getSettings"),
    $onMute: dartx.onMute = Symbol("dartx.onMute"),
    $onUnmute: dartx.onUnmute = Symbol("dartx.onUnmute"),
    _getContext_1: dart.privateName(html$, "_getContext_1"),
    _getContext_2: dart.privateName(html$, "_getContext_2"),
    $getContext: dartx.getContext = Symbol("dartx.getContext"),
    _toDataUrl: dart.privateName(html$, "_toDataUrl"),
    $transferControlToOffscreen: dartx.transferControlToOffscreen = Symbol("dartx.transferControlToOffscreen"),
    $onWebGlContextLost: dartx.onWebGlContextLost = Symbol("dartx.onWebGlContextLost"),
    $onWebGlContextRestored: dartx.onWebGlContextRestored = Symbol("dartx.onWebGlContextRestored"),
    $context2D: dartx.context2D = Symbol("dartx.context2D"),
    $getContext3d: dartx.getContext3d = Symbol("dartx.getContext3d"),
    $toDataUrl: dartx.toDataUrl = Symbol("dartx.toDataUrl"),
    _toBlob: dart.privateName(html$, "_toBlob"),
    $toBlob: dartx.toBlob = Symbol("dartx.toBlob"),
    $addColorStop: dartx.addColorStop = Symbol("dartx.addColorStop"),
    $setTransform: dartx.setTransform = Symbol("dartx.setTransform"),
    $currentTransform: dartx.currentTransform = Symbol("dartx.currentTransform"),
    $fillStyle: dartx.fillStyle = Symbol("dartx.fillStyle"),
    $filter: dartx.filter = Symbol("dartx.filter"),
    $font: dartx.font = Symbol("dartx.font"),
    $globalAlpha: dartx.globalAlpha = Symbol("dartx.globalAlpha"),
    $globalCompositeOperation: dartx.globalCompositeOperation = Symbol("dartx.globalCompositeOperation"),
    $imageSmoothingEnabled: dartx.imageSmoothingEnabled = Symbol("dartx.imageSmoothingEnabled"),
    $imageSmoothingQuality: dartx.imageSmoothingQuality = Symbol("dartx.imageSmoothingQuality"),
    $lineCap: dartx.lineCap = Symbol("dartx.lineCap"),
    $lineJoin: dartx.lineJoin = Symbol("dartx.lineJoin"),
    $lineWidth: dartx.lineWidth = Symbol("dartx.lineWidth"),
    $miterLimit: dartx.miterLimit = Symbol("dartx.miterLimit"),
    $shadowBlur: dartx.shadowBlur = Symbol("dartx.shadowBlur"),
    $shadowColor: dartx.shadowColor = Symbol("dartx.shadowColor"),
    $shadowOffsetX: dartx.shadowOffsetX = Symbol("dartx.shadowOffsetX"),
    $shadowOffsetY: dartx.shadowOffsetY = Symbol("dartx.shadowOffsetY"),
    $strokeStyle: dartx.strokeStyle = Symbol("dartx.strokeStyle"),
    $textAlign: dartx.textAlign = Symbol("dartx.textAlign"),
    $textBaseline: dartx.textBaseline = Symbol("dartx.textBaseline"),
    _addHitRegion_1: dart.privateName(html$, "_addHitRegion_1"),
    _addHitRegion_2: dart.privateName(html$, "_addHitRegion_2"),
    $addHitRegion: dartx.addHitRegion = Symbol("dartx.addHitRegion"),
    $beginPath: dartx.beginPath = Symbol("dartx.beginPath"),
    $clearHitRegions: dartx.clearHitRegions = Symbol("dartx.clearHitRegions"),
    $clearRect: dartx.clearRect = Symbol("dartx.clearRect"),
    $clip: dartx.clip = Symbol("dartx.clip"),
    _createImageData_1: dart.privateName(html$, "_createImageData_1"),
    _createImageData_2: dart.privateName(html$, "_createImageData_2"),
    _createImageData_3: dart.privateName(html$, "_createImageData_3"),
    _createImageData_4: dart.privateName(html$, "_createImageData_4"),
    _createImageData_5: dart.privateName(html$, "_createImageData_5"),
    $createImageData: dartx.createImageData = Symbol("dartx.createImageData"),
    $createLinearGradient: dartx.createLinearGradient = Symbol("dartx.createLinearGradient"),
    $createPattern: dartx.createPattern = Symbol("dartx.createPattern"),
    $createRadialGradient: dartx.createRadialGradient = Symbol("dartx.createRadialGradient"),
    $drawFocusIfNeeded: dartx.drawFocusIfNeeded = Symbol("dartx.drawFocusIfNeeded"),
    $fillRect: dartx.fillRect = Symbol("dartx.fillRect"),
    _getContextAttributes_1: dart.privateName(html$, "_getContextAttributes_1"),
    $getContextAttributes: dartx.getContextAttributes = Symbol("dartx.getContextAttributes"),
    _getImageData_1: dart.privateName(html$, "_getImageData_1"),
    $getImageData: dartx.getImageData = Symbol("dartx.getImageData"),
    _getLineDash: dart.privateName(html$, "_getLineDash"),
    $isContextLost: dartx.isContextLost = Symbol("dartx.isContextLost"),
    $isPointInPath: dartx.isPointInPath = Symbol("dartx.isPointInPath"),
    $isPointInStroke: dartx.isPointInStroke = Symbol("dartx.isPointInStroke"),
    $measureText: dartx.measureText = Symbol("dartx.measureText"),
    _putImageData_1: dart.privateName(html$, "_putImageData_1"),
    _putImageData_2: dart.privateName(html$, "_putImageData_2"),
    $putImageData: dartx.putImageData = Symbol("dartx.putImageData"),
    $removeHitRegion: dartx.removeHitRegion = Symbol("dartx.removeHitRegion"),
    $resetTransform: dartx.resetTransform = Symbol("dartx.resetTransform"),
    $restore: dartx.restore = Symbol("dartx.restore"),
    $rotate: dartx.rotate = Symbol("dartx.rotate"),
    $save: dartx.save = Symbol("dartx.save"),
    $scale: dartx.scale = Symbol("dartx.scale"),
    $scrollPathIntoView: dartx.scrollPathIntoView = Symbol("dartx.scrollPathIntoView"),
    $stroke: dartx.stroke = Symbol("dartx.stroke"),
    $strokeRect: dartx.strokeRect = Symbol("dartx.strokeRect"),
    $strokeText: dartx.strokeText = Symbol("dartx.strokeText"),
    $transform: dartx.transform = Symbol("dartx.transform"),
    _arc: dart.privateName(html$, "_arc"),
    $arcTo: dartx.arcTo = Symbol("dartx.arcTo"),
    $bezierCurveTo: dartx.bezierCurveTo = Symbol("dartx.bezierCurveTo"),
    $closePath: dartx.closePath = Symbol("dartx.closePath"),
    $ellipse: dartx.ellipse = Symbol("dartx.ellipse"),
    $lineTo: dartx.lineTo = Symbol("dartx.lineTo"),
    $moveTo: dartx.moveTo = Symbol("dartx.moveTo"),
    $quadraticCurveTo: dartx.quadraticCurveTo = Symbol("dartx.quadraticCurveTo"),
    $rect: dartx.rect = Symbol("dartx.rect"),
    $createImageDataFromImageData: dartx.createImageDataFromImageData = Symbol("dartx.createImageDataFromImageData"),
    $setFillColorRgb: dartx.setFillColorRgb = Symbol("dartx.setFillColorRgb"),
    $setFillColorHsl: dartx.setFillColorHsl = Symbol("dartx.setFillColorHsl"),
    $setStrokeColorRgb: dartx.setStrokeColorRgb = Symbol("dartx.setStrokeColorRgb"),
    $setStrokeColorHsl: dartx.setStrokeColorHsl = Symbol("dartx.setStrokeColorHsl"),
    $arc: dartx.arc = Symbol("dartx.arc"),
    $createPatternFromImage: dartx.createPatternFromImage = Symbol("dartx.createPatternFromImage"),
    $drawImageScaled: dartx.drawImageScaled = Symbol("dartx.drawImageScaled"),
    $drawImageScaledFromSource: dartx.drawImageScaledFromSource = Symbol("dartx.drawImageScaledFromSource"),
    $drawImageToRect: dartx.drawImageToRect = Symbol("dartx.drawImageToRect"),
    $drawImage: dartx.drawImage = Symbol("dartx.drawImage"),
    $lineDashOffset: dartx.lineDashOffset = Symbol("dartx.lineDashOffset"),
    $getLineDash: dartx.getLineDash = Symbol("dartx.getLineDash"),
    $setLineDash: dartx.setLineDash = Symbol("dartx.setLineDash"),
    $fillText: dartx.fillText = Symbol("dartx.fillText"),
    $backingStorePixelRatio: dartx.backingStorePixelRatio = Symbol("dartx.backingStorePixelRatio"),
    $frameType: dartx.frameType = Symbol("dartx.frameType"),
    $claim: dartx.claim = Symbol("dartx.claim"),
    $matchAll: dartx.matchAll = Symbol("dartx.matchAll"),
    $openWindow: dartx.openWindow = Symbol("dartx.openWindow"),
    $clipboardData: dartx.clipboardData = Symbol("dartx.clipboardData"),
    $code: dartx.code = Symbol("dartx.code"),
    $wasClean: dartx.wasClean = Symbol("dartx.wasClean"),
    _initCompositionEvent: dart.privateName(html$, "_initCompositionEvent"),
    _initUIEvent: dart.privateName(html$, "_initUIEvent"),
    $detail: dartx.detail = Symbol("dartx.detail"),
    $sourceCapabilities: dartx.sourceCapabilities = Symbol("dartx.sourceCapabilities"),
    _get_view: dart.privateName(html$, "_get_view"),
    $view: dartx.view = Symbol("dartx.view"),
    _which: dart.privateName(html$, "_which"),
    $select: dartx.select = Symbol("dartx.select"),
    $getDistributedNodes: dartx.getDistributedNodes = Symbol("dartx.getDistributedNodes"),
    $set: dartx.set = Symbol("dartx.set"),
    $accuracy: dartx.accuracy = Symbol("dartx.accuracy"),
    $altitude: dartx.altitude = Symbol("dartx.altitude"),
    $altitudeAccuracy: dartx.altitudeAccuracy = Symbol("dartx.altitudeAccuracy"),
    $heading: dartx.heading = Symbol("dartx.heading"),
    $latitude: dartx.latitude = Symbol("dartx.latitude"),
    $longitude: dartx.longitude = Symbol("dartx.longitude"),
    $speed: dartx.speed = Symbol("dartx.speed"),
    $iconUrl: dartx.iconUrl = Symbol("dartx.iconUrl"),
    $create: dartx.create = Symbol("dartx.create"),
    $preventSilentAccess: dartx.preventSilentAccess = Symbol("dartx.preventSilentAccess"),
    $requireUserMediation: dartx.requireUserMediation = Symbol("dartx.requireUserMediation"),
    $store: dartx.store = Symbol("dartx.store"),
    _getRandomValues: dart.privateName(html$, "_getRandomValues"),
    $getRandomValues: dartx.getRandomValues = Symbol("dartx.getRandomValues"),
    $subtle: dartx.subtle = Symbol("dartx.subtle"),
    $algorithm: dartx.algorithm = Symbol("dartx.algorithm"),
    $extractable: dartx.extractable = Symbol("dartx.extractable"),
    $usages: dartx.usages = Symbol("dartx.usages"),
    $encoding: dartx.encoding = Symbol("dartx.encoding"),
    $cssText: dartx.cssText = Symbol("dartx.cssText"),
    $parentRule: dartx.parentRule = Symbol("dartx.parentRule"),
    $parentStyleSheet: dartx.parentStyleSheet = Symbol("dartx.parentStyleSheet"),
    $conditionText: dartx.conditionText = Symbol("dartx.conditionText"),
    $cssRules: dartx.cssRules = Symbol("dartx.cssRules"),
    $deleteRule: dartx.deleteRule = Symbol("dartx.deleteRule"),
    $insertRule: dartx.insertRule = Symbol("dartx.insertRule"),
    $intrinsicHeight: dartx.intrinsicHeight = Symbol("dartx.intrinsicHeight"),
    $intrinsicRatio: dartx.intrinsicRatio = Symbol("dartx.intrinsicRatio"),
    $intrinsicWidth: dartx.intrinsicWidth = Symbol("dartx.intrinsicWidth"),
    $media: dartx.media = Symbol("dartx.media"),
    $styleSheet: dartx.styleSheet = Symbol("dartx.styleSheet"),
    $keyText: dartx.keyText = Symbol("dartx.keyText"),
    __getter__: dart.privateName(html$, "__getter__"),
    $appendRule: dartx.appendRule = Symbol("dartx.appendRule"),
    $findRule: dartx.findRule = Symbol("dartx.findRule"),
    $matrix: dartx.matrix = Symbol("dartx.matrix"),
    $is2D: dartx.is2D = Symbol("dartx.is2D"),
    $prefix: dartx.prefix = Symbol("dartx.prefix"),
    $div: dartx.div = Symbol("dartx.div"),
    $mul: dartx.mul = Symbol("dartx.mul"),
    $sub: dartx.sub = Symbol("dartx.sub"),
    $to: dartx.to = Symbol("dartx.to"),
    $selectorText: dartx.selectorText = Symbol("dartx.selectorText"),
    $angle: dartx.angle = Symbol("dartx.angle"),
    $ax: dartx.ax = Symbol("dartx.ax"),
    $ay: dartx.ay = Symbol("dartx.ay"),
    _getPropertyValueHelper: dart.privateName(html$, "_getPropertyValueHelper"),
    $getPropertyValue: dartx.getPropertyValue = Symbol("dartx.getPropertyValue"),
    _browserPropertyName: dart.privateName(html$, "_browserPropertyName"),
    _getPropertyValue: dart.privateName(html$, "_getPropertyValue"),
    _supportsProperty: dart.privateName(html$, "_supportsProperty"),
    $supportsProperty: dartx.supportsProperty = Symbol("dartx.supportsProperty"),
    _setPropertyHelper: dart.privateName(html$, "_setPropertyHelper"),
    $setProperty: dartx.setProperty = Symbol("dartx.setProperty"),
    _supportedBrowserPropertyName: dart.privateName(html$, "_supportedBrowserPropertyName"),
    $cssFloat: dartx.cssFloat = Symbol("dartx.cssFloat"),
    $getPropertyPriority: dartx.getPropertyPriority = Symbol("dartx.getPropertyPriority"),
    $removeProperty: dartx.removeProperty = Symbol("dartx.removeProperty"),
    _background: dart.privateName(html$, "_background"),
    $background: dartx.background = Symbol("dartx.background"),
    _backgroundAttachment: dart.privateName(html$, "_backgroundAttachment"),
    $backgroundAttachment: dartx.backgroundAttachment = Symbol("dartx.backgroundAttachment"),
    _backgroundColor: dart.privateName(html$, "_backgroundColor"),
    $backgroundColor: dartx.backgroundColor = Symbol("dartx.backgroundColor"),
    _backgroundImage: dart.privateName(html$, "_backgroundImage"),
    $backgroundImage: dartx.backgroundImage = Symbol("dartx.backgroundImage"),
    _backgroundPosition: dart.privateName(html$, "_backgroundPosition"),
    $backgroundPosition: dartx.backgroundPosition = Symbol("dartx.backgroundPosition"),
    _backgroundRepeat: dart.privateName(html$, "_backgroundRepeat"),
    $backgroundRepeat: dartx.backgroundRepeat = Symbol("dartx.backgroundRepeat"),
    _border: dart.privateName(html$, "_border"),
    $border: dartx.border = Symbol("dartx.border"),
    _borderBottom: dart.privateName(html$, "_borderBottom"),
    $borderBottom: dartx.borderBottom = Symbol("dartx.borderBottom"),
    _borderBottomColor: dart.privateName(html$, "_borderBottomColor"),
    $borderBottomColor: dartx.borderBottomColor = Symbol("dartx.borderBottomColor"),
    _borderBottomStyle: dart.privateName(html$, "_borderBottomStyle"),
    $borderBottomStyle: dartx.borderBottomStyle = Symbol("dartx.borderBottomStyle"),
    _borderBottomWidth: dart.privateName(html$, "_borderBottomWidth"),
    $borderBottomWidth: dartx.borderBottomWidth = Symbol("dartx.borderBottomWidth")
  };
  var S$0 = {
    _borderCollapse: dart.privateName(html$, "_borderCollapse"),
    $borderCollapse: dartx.borderCollapse = Symbol("dartx.borderCollapse"),
    _borderColor: dart.privateName(html$, "_borderColor"),
    $borderColor: dartx.borderColor = Symbol("dartx.borderColor"),
    _borderLeft: dart.privateName(html$, "_borderLeft"),
    $borderLeft: dartx.borderLeft = Symbol("dartx.borderLeft"),
    _borderLeftColor: dart.privateName(html$, "_borderLeftColor"),
    $borderLeftColor: dartx.borderLeftColor = Symbol("dartx.borderLeftColor"),
    _borderLeftStyle: dart.privateName(html$, "_borderLeftStyle"),
    $borderLeftStyle: dartx.borderLeftStyle = Symbol("dartx.borderLeftStyle"),
    _borderLeftWidth: dart.privateName(html$, "_borderLeftWidth"),
    $borderLeftWidth: dartx.borderLeftWidth = Symbol("dartx.borderLeftWidth"),
    _borderRight: dart.privateName(html$, "_borderRight"),
    $borderRight: dartx.borderRight = Symbol("dartx.borderRight"),
    _borderRightColor: dart.privateName(html$, "_borderRightColor"),
    $borderRightColor: dartx.borderRightColor = Symbol("dartx.borderRightColor"),
    _borderRightStyle: dart.privateName(html$, "_borderRightStyle"),
    $borderRightStyle: dartx.borderRightStyle = Symbol("dartx.borderRightStyle"),
    _borderRightWidth: dart.privateName(html$, "_borderRightWidth"),
    $borderRightWidth: dartx.borderRightWidth = Symbol("dartx.borderRightWidth"),
    _borderSpacing: dart.privateName(html$, "_borderSpacing"),
    $borderSpacing: dartx.borderSpacing = Symbol("dartx.borderSpacing"),
    _borderStyle: dart.privateName(html$, "_borderStyle"),
    $borderStyle: dartx.borderStyle = Symbol("dartx.borderStyle"),
    _borderTop: dart.privateName(html$, "_borderTop"),
    $borderTop: dartx.borderTop = Symbol("dartx.borderTop"),
    _borderTopColor: dart.privateName(html$, "_borderTopColor"),
    $borderTopColor: dartx.borderTopColor = Symbol("dartx.borderTopColor"),
    _borderTopStyle: dart.privateName(html$, "_borderTopStyle"),
    $borderTopStyle: dartx.borderTopStyle = Symbol("dartx.borderTopStyle"),
    _borderTopWidth: dart.privateName(html$, "_borderTopWidth"),
    $borderTopWidth: dartx.borderTopWidth = Symbol("dartx.borderTopWidth"),
    _borderWidth: dart.privateName(html$, "_borderWidth"),
    $borderWidth: dartx.borderWidth = Symbol("dartx.borderWidth"),
    _bottom: dart.privateName(html$, "_bottom"),
    _captionSide: dart.privateName(html$, "_captionSide"),
    $captionSide: dartx.captionSide = Symbol("dartx.captionSide"),
    _clear$3: dart.privateName(html$, "_clear"),
    _clip: dart.privateName(html$, "_clip"),
    _color: dart.privateName(html$, "_color"),
    $color: dartx.color = Symbol("dartx.color"),
    _content: dart.privateName(html$, "_content"),
    $content: dartx.content = Symbol("dartx.content"),
    _cursor: dart.privateName(html$, "_cursor"),
    $cursor: dartx.cursor = Symbol("dartx.cursor"),
    _direction: dart.privateName(html$, "_direction"),
    _display: dart.privateName(html$, "_display"),
    $display: dartx.display = Symbol("dartx.display"),
    _emptyCells: dart.privateName(html$, "_emptyCells"),
    $emptyCells: dartx.emptyCells = Symbol("dartx.emptyCells"),
    _font: dart.privateName(html$, "_font"),
    _fontFamily: dart.privateName(html$, "_fontFamily"),
    $fontFamily: dartx.fontFamily = Symbol("dartx.fontFamily"),
    _fontSize: dart.privateName(html$, "_fontSize"),
    $fontSize: dartx.fontSize = Symbol("dartx.fontSize"),
    _fontStyle: dart.privateName(html$, "_fontStyle"),
    $fontStyle: dartx.fontStyle = Symbol("dartx.fontStyle"),
    _fontVariant: dart.privateName(html$, "_fontVariant"),
    $fontVariant: dartx.fontVariant = Symbol("dartx.fontVariant"),
    _fontWeight: dart.privateName(html$, "_fontWeight"),
    $fontWeight: dartx.fontWeight = Symbol("dartx.fontWeight"),
    _height$1: dart.privateName(html$, "_height"),
    _left$2: dart.privateName(html$, "_left"),
    _letterSpacing: dart.privateName(html$, "_letterSpacing"),
    $letterSpacing: dartx.letterSpacing = Symbol("dartx.letterSpacing"),
    _lineHeight: dart.privateName(html$, "_lineHeight"),
    $lineHeight: dartx.lineHeight = Symbol("dartx.lineHeight"),
    _listStyle: dart.privateName(html$, "_listStyle"),
    $listStyle: dartx.listStyle = Symbol("dartx.listStyle"),
    _listStyleImage: dart.privateName(html$, "_listStyleImage"),
    $listStyleImage: dartx.listStyleImage = Symbol("dartx.listStyleImage"),
    _listStylePosition: dart.privateName(html$, "_listStylePosition"),
    $listStylePosition: dartx.listStylePosition = Symbol("dartx.listStylePosition"),
    _listStyleType: dart.privateName(html$, "_listStyleType"),
    $listStyleType: dartx.listStyleType = Symbol("dartx.listStyleType"),
    _margin: dart.privateName(html$, "_margin"),
    $margin: dartx.margin = Symbol("dartx.margin"),
    _marginBottom: dart.privateName(html$, "_marginBottom"),
    $marginBottom: dartx.marginBottom = Symbol("dartx.marginBottom"),
    _marginLeft: dart.privateName(html$, "_marginLeft"),
    $marginLeft: dartx.marginLeft = Symbol("dartx.marginLeft"),
    _marginRight: dart.privateName(html$, "_marginRight"),
    $marginRight: dartx.marginRight = Symbol("dartx.marginRight"),
    _marginTop: dart.privateName(html$, "_marginTop"),
    $marginTop: dartx.marginTop = Symbol("dartx.marginTop"),
    _maxHeight: dart.privateName(html$, "_maxHeight"),
    $maxHeight: dartx.maxHeight = Symbol("dartx.maxHeight"),
    _maxWidth: dart.privateName(html$, "_maxWidth"),
    $maxWidth: dartx.maxWidth = Symbol("dartx.maxWidth"),
    _minHeight: dart.privateName(html$, "_minHeight"),
    $minHeight: dartx.minHeight = Symbol("dartx.minHeight"),
    _minWidth: dart.privateName(html$, "_minWidth"),
    $minWidth: dartx.minWidth = Symbol("dartx.minWidth"),
    _outline: dart.privateName(html$, "_outline"),
    $outline: dartx.outline = Symbol("dartx.outline"),
    _outlineColor: dart.privateName(html$, "_outlineColor"),
    $outlineColor: dartx.outlineColor = Symbol("dartx.outlineColor"),
    _outlineStyle: dart.privateName(html$, "_outlineStyle"),
    $outlineStyle: dartx.outlineStyle = Symbol("dartx.outlineStyle"),
    _outlineWidth: dart.privateName(html$, "_outlineWidth"),
    $outlineWidth: dartx.outlineWidth = Symbol("dartx.outlineWidth"),
    _overflow: dart.privateName(html$, "_overflow"),
    $overflow: dartx.overflow = Symbol("dartx.overflow"),
    _padding: dart.privateName(html$, "_padding"),
    $padding: dartx.padding = Symbol("dartx.padding"),
    _paddingBottom: dart.privateName(html$, "_paddingBottom"),
    $paddingBottom: dartx.paddingBottom = Symbol("dartx.paddingBottom"),
    _paddingLeft: dart.privateName(html$, "_paddingLeft"),
    $paddingLeft: dartx.paddingLeft = Symbol("dartx.paddingLeft"),
    _paddingRight: dart.privateName(html$, "_paddingRight"),
    $paddingRight: dartx.paddingRight = Symbol("dartx.paddingRight"),
    _paddingTop: dart.privateName(html$, "_paddingTop"),
    $paddingTop: dartx.paddingTop = Symbol("dartx.paddingTop"),
    _pageBreakAfter: dart.privateName(html$, "_pageBreakAfter"),
    $pageBreakAfter: dartx.pageBreakAfter = Symbol("dartx.pageBreakAfter"),
    _pageBreakBefore: dart.privateName(html$, "_pageBreakBefore"),
    $pageBreakBefore: dartx.pageBreakBefore = Symbol("dartx.pageBreakBefore"),
    _pageBreakInside: dart.privateName(html$, "_pageBreakInside"),
    $pageBreakInside: dartx.pageBreakInside = Symbol("dartx.pageBreakInside"),
    _position$2: dart.privateName(html$, "_position"),
    $position: dartx.position = Symbol("dartx.position"),
    _quotes: dart.privateName(html$, "_quotes"),
    $quotes: dartx.quotes = Symbol("dartx.quotes"),
    _right$2: dart.privateName(html$, "_right"),
    _tableLayout: dart.privateName(html$, "_tableLayout"),
    $tableLayout: dartx.tableLayout = Symbol("dartx.tableLayout"),
    _textAlign: dart.privateName(html$, "_textAlign"),
    _textDecoration: dart.privateName(html$, "_textDecoration"),
    $textDecoration: dartx.textDecoration = Symbol("dartx.textDecoration"),
    _textIndent: dart.privateName(html$, "_textIndent"),
    $textIndent: dartx.textIndent = Symbol("dartx.textIndent"),
    _textTransform: dart.privateName(html$, "_textTransform"),
    $textTransform: dartx.textTransform = Symbol("dartx.textTransform"),
    _top: dart.privateName(html$, "_top"),
    _unicodeBidi: dart.privateName(html$, "_unicodeBidi"),
    $unicodeBidi: dartx.unicodeBidi = Symbol("dartx.unicodeBidi"),
    _verticalAlign: dart.privateName(html$, "_verticalAlign"),
    $verticalAlign: dartx.verticalAlign = Symbol("dartx.verticalAlign"),
    _visibility: dart.privateName(html$, "_visibility"),
    $visibility: dartx.visibility = Symbol("dartx.visibility"),
    _whiteSpace: dart.privateName(html$, "_whiteSpace"),
    $whiteSpace: dartx.whiteSpace = Symbol("dartx.whiteSpace"),
    _width$1: dart.privateName(html$, "_width"),
    _wordSpacing: dart.privateName(html$, "_wordSpacing"),
    $wordSpacing: dartx.wordSpacing = Symbol("dartx.wordSpacing"),
    _zIndex: dart.privateName(html$, "_zIndex"),
    $zIndex: dartx.zIndex = Symbol("dartx.zIndex"),
    $alignContent: dartx.alignContent = Symbol("dartx.alignContent"),
    $alignItems: dartx.alignItems = Symbol("dartx.alignItems"),
    $alignSelf: dartx.alignSelf = Symbol("dartx.alignSelf"),
    $animation: dartx.animation = Symbol("dartx.animation"),
    $animationDelay: dartx.animationDelay = Symbol("dartx.animationDelay"),
    $animationDirection: dartx.animationDirection = Symbol("dartx.animationDirection"),
    $animationDuration: dartx.animationDuration = Symbol("dartx.animationDuration"),
    $animationFillMode: dartx.animationFillMode = Symbol("dartx.animationFillMode"),
    $animationIterationCount: dartx.animationIterationCount = Symbol("dartx.animationIterationCount"),
    $animationPlayState: dartx.animationPlayState = Symbol("dartx.animationPlayState"),
    $animationTimingFunction: dartx.animationTimingFunction = Symbol("dartx.animationTimingFunction"),
    $appRegion: dartx.appRegion = Symbol("dartx.appRegion"),
    $appearance: dartx.appearance = Symbol("dartx.appearance"),
    $aspectRatio: dartx.aspectRatio = Symbol("dartx.aspectRatio"),
    $backfaceVisibility: dartx.backfaceVisibility = Symbol("dartx.backfaceVisibility"),
    $backgroundBlendMode: dartx.backgroundBlendMode = Symbol("dartx.backgroundBlendMode"),
    $backgroundClip: dartx.backgroundClip = Symbol("dartx.backgroundClip"),
    $backgroundComposite: dartx.backgroundComposite = Symbol("dartx.backgroundComposite"),
    $backgroundOrigin: dartx.backgroundOrigin = Symbol("dartx.backgroundOrigin"),
    $backgroundPositionX: dartx.backgroundPositionX = Symbol("dartx.backgroundPositionX"),
    $backgroundPositionY: dartx.backgroundPositionY = Symbol("dartx.backgroundPositionY"),
    $backgroundRepeatX: dartx.backgroundRepeatX = Symbol("dartx.backgroundRepeatX"),
    $backgroundRepeatY: dartx.backgroundRepeatY = Symbol("dartx.backgroundRepeatY"),
    $backgroundSize: dartx.backgroundSize = Symbol("dartx.backgroundSize"),
    $borderAfter: dartx.borderAfter = Symbol("dartx.borderAfter"),
    $borderAfterColor: dartx.borderAfterColor = Symbol("dartx.borderAfterColor"),
    $borderAfterStyle: dartx.borderAfterStyle = Symbol("dartx.borderAfterStyle"),
    $borderAfterWidth: dartx.borderAfterWidth = Symbol("dartx.borderAfterWidth"),
    $borderBefore: dartx.borderBefore = Symbol("dartx.borderBefore"),
    $borderBeforeColor: dartx.borderBeforeColor = Symbol("dartx.borderBeforeColor"),
    $borderBeforeStyle: dartx.borderBeforeStyle = Symbol("dartx.borderBeforeStyle"),
    $borderBeforeWidth: dartx.borderBeforeWidth = Symbol("dartx.borderBeforeWidth"),
    $borderBottomLeftRadius: dartx.borderBottomLeftRadius = Symbol("dartx.borderBottomLeftRadius"),
    $borderBottomRightRadius: dartx.borderBottomRightRadius = Symbol("dartx.borderBottomRightRadius"),
    $borderEnd: dartx.borderEnd = Symbol("dartx.borderEnd"),
    $borderEndColor: dartx.borderEndColor = Symbol("dartx.borderEndColor"),
    $borderEndStyle: dartx.borderEndStyle = Symbol("dartx.borderEndStyle"),
    $borderEndWidth: dartx.borderEndWidth = Symbol("dartx.borderEndWidth"),
    $borderFit: dartx.borderFit = Symbol("dartx.borderFit"),
    $borderHorizontalSpacing: dartx.borderHorizontalSpacing = Symbol("dartx.borderHorizontalSpacing"),
    $borderImage: dartx.borderImage = Symbol("dartx.borderImage"),
    $borderImageOutset: dartx.borderImageOutset = Symbol("dartx.borderImageOutset"),
    $borderImageRepeat: dartx.borderImageRepeat = Symbol("dartx.borderImageRepeat"),
    $borderImageSlice: dartx.borderImageSlice = Symbol("dartx.borderImageSlice"),
    $borderImageSource: dartx.borderImageSource = Symbol("dartx.borderImageSource"),
    $borderImageWidth: dartx.borderImageWidth = Symbol("dartx.borderImageWidth"),
    $borderRadius: dartx.borderRadius = Symbol("dartx.borderRadius"),
    $borderStart: dartx.borderStart = Symbol("dartx.borderStart"),
    $borderStartColor: dartx.borderStartColor = Symbol("dartx.borderStartColor"),
    $borderStartStyle: dartx.borderStartStyle = Symbol("dartx.borderStartStyle"),
    $borderStartWidth: dartx.borderStartWidth = Symbol("dartx.borderStartWidth"),
    $borderTopLeftRadius: dartx.borderTopLeftRadius = Symbol("dartx.borderTopLeftRadius"),
    $borderTopRightRadius: dartx.borderTopRightRadius = Symbol("dartx.borderTopRightRadius"),
    $borderVerticalSpacing: dartx.borderVerticalSpacing = Symbol("dartx.borderVerticalSpacing"),
    $boxAlign: dartx.boxAlign = Symbol("dartx.boxAlign"),
    $boxDecorationBreak: dartx.boxDecorationBreak = Symbol("dartx.boxDecorationBreak"),
    $boxDirection: dartx.boxDirection = Symbol("dartx.boxDirection"),
    $boxFlex: dartx.boxFlex = Symbol("dartx.boxFlex"),
    $boxFlexGroup: dartx.boxFlexGroup = Symbol("dartx.boxFlexGroup"),
    $boxLines: dartx.boxLines = Symbol("dartx.boxLines"),
    $boxOrdinalGroup: dartx.boxOrdinalGroup = Symbol("dartx.boxOrdinalGroup"),
    $boxOrient: dartx.boxOrient = Symbol("dartx.boxOrient"),
    $boxPack: dartx.boxPack = Symbol("dartx.boxPack"),
    $boxReflect: dartx.boxReflect = Symbol("dartx.boxReflect"),
    $boxShadow: dartx.boxShadow = Symbol("dartx.boxShadow"),
    $boxSizing: dartx.boxSizing = Symbol("dartx.boxSizing"),
    $clipPath: dartx.clipPath = Symbol("dartx.clipPath"),
    $columnBreakAfter: dartx.columnBreakAfter = Symbol("dartx.columnBreakAfter"),
    $columnBreakBefore: dartx.columnBreakBefore = Symbol("dartx.columnBreakBefore"),
    $columnBreakInside: dartx.columnBreakInside = Symbol("dartx.columnBreakInside"),
    $columnCount: dartx.columnCount = Symbol("dartx.columnCount"),
    $columnFill: dartx.columnFill = Symbol("dartx.columnFill"),
    $columnGap: dartx.columnGap = Symbol("dartx.columnGap"),
    $columnRule: dartx.columnRule = Symbol("dartx.columnRule"),
    $columnRuleColor: dartx.columnRuleColor = Symbol("dartx.columnRuleColor"),
    $columnRuleStyle: dartx.columnRuleStyle = Symbol("dartx.columnRuleStyle"),
    $columnRuleWidth: dartx.columnRuleWidth = Symbol("dartx.columnRuleWidth"),
    $columnSpan: dartx.columnSpan = Symbol("dartx.columnSpan"),
    $columnWidth: dartx.columnWidth = Symbol("dartx.columnWidth"),
    $columns: dartx.columns = Symbol("dartx.columns"),
    $counterIncrement: dartx.counterIncrement = Symbol("dartx.counterIncrement"),
    $counterReset: dartx.counterReset = Symbol("dartx.counterReset"),
    $flex: dartx.flex = Symbol("dartx.flex"),
    $flexBasis: dartx.flexBasis = Symbol("dartx.flexBasis"),
    $flexDirection: dartx.flexDirection = Symbol("dartx.flexDirection"),
    $flexFlow: dartx.flexFlow = Symbol("dartx.flexFlow"),
    $flexGrow: dartx.flexGrow = Symbol("dartx.flexGrow"),
    $flexShrink: dartx.flexShrink = Symbol("dartx.flexShrink"),
    $flexWrap: dartx.flexWrap = Symbol("dartx.flexWrap"),
    $float: dartx.float = Symbol("dartx.float"),
    $fontFeatureSettings: dartx.fontFeatureSettings = Symbol("dartx.fontFeatureSettings"),
    $fontKerning: dartx.fontKerning = Symbol("dartx.fontKerning"),
    $fontSizeDelta: dartx.fontSizeDelta = Symbol("dartx.fontSizeDelta"),
    $fontSmoothing: dartx.fontSmoothing = Symbol("dartx.fontSmoothing"),
    $fontStretch: dartx.fontStretch = Symbol("dartx.fontStretch"),
    $fontVariantLigatures: dartx.fontVariantLigatures = Symbol("dartx.fontVariantLigatures"),
    $gap: dartx.gap = Symbol("dartx.gap"),
    $grid: dartx.grid = Symbol("dartx.grid"),
    $gridArea: dartx.gridArea = Symbol("dartx.gridArea"),
    $gridAutoColumns: dartx.gridAutoColumns = Symbol("dartx.gridAutoColumns"),
    $gridAutoFlow: dartx.gridAutoFlow = Symbol("dartx.gridAutoFlow"),
    $gridAutoRows: dartx.gridAutoRows = Symbol("dartx.gridAutoRows"),
    $gridColumn: dartx.gridColumn = Symbol("dartx.gridColumn"),
    $gridColumnEnd: dartx.gridColumnEnd = Symbol("dartx.gridColumnEnd"),
    $gridColumnStart: dartx.gridColumnStart = Symbol("dartx.gridColumnStart"),
    $gridRow: dartx.gridRow = Symbol("dartx.gridRow"),
    $gridRowEnd: dartx.gridRowEnd = Symbol("dartx.gridRowEnd"),
    $gridRowStart: dartx.gridRowStart = Symbol("dartx.gridRowStart"),
    $gridTemplate: dartx.gridTemplate = Symbol("dartx.gridTemplate"),
    $gridTemplateAreas: dartx.gridTemplateAreas = Symbol("dartx.gridTemplateAreas"),
    $gridTemplateColumns: dartx.gridTemplateColumns = Symbol("dartx.gridTemplateColumns"),
    $gridTemplateRows: dartx.gridTemplateRows = Symbol("dartx.gridTemplateRows"),
    $highlight: dartx.highlight = Symbol("dartx.highlight"),
    $hyphenateCharacter: dartx.hyphenateCharacter = Symbol("dartx.hyphenateCharacter"),
    $imageRendering: dartx.imageRendering = Symbol("dartx.imageRendering"),
    $isolation: dartx.isolation = Symbol("dartx.isolation"),
    $justifyContent: dartx.justifyContent = Symbol("dartx.justifyContent"),
    $justifySelf: dartx.justifySelf = Symbol("dartx.justifySelf"),
    $lineBoxContain: dartx.lineBoxContain = Symbol("dartx.lineBoxContain"),
    $lineBreak: dartx.lineBreak = Symbol("dartx.lineBreak"),
    $lineClamp: dartx.lineClamp = Symbol("dartx.lineClamp"),
    $locale: dartx.locale = Symbol("dartx.locale"),
    $logicalHeight: dartx.logicalHeight = Symbol("dartx.logicalHeight"),
    $logicalWidth: dartx.logicalWidth = Symbol("dartx.logicalWidth"),
    $marginAfter: dartx.marginAfter = Symbol("dartx.marginAfter"),
    $marginAfterCollapse: dartx.marginAfterCollapse = Symbol("dartx.marginAfterCollapse"),
    $marginBefore: dartx.marginBefore = Symbol("dartx.marginBefore"),
    $marginBeforeCollapse: dartx.marginBeforeCollapse = Symbol("dartx.marginBeforeCollapse"),
    $marginBottomCollapse: dartx.marginBottomCollapse = Symbol("dartx.marginBottomCollapse"),
    $marginCollapse: dartx.marginCollapse = Symbol("dartx.marginCollapse"),
    $marginEnd: dartx.marginEnd = Symbol("dartx.marginEnd"),
    $marginStart: dartx.marginStart = Symbol("dartx.marginStart"),
    $marginTopCollapse: dartx.marginTopCollapse = Symbol("dartx.marginTopCollapse"),
    $mask: dartx.mask = Symbol("dartx.mask"),
    $maskBoxImage: dartx.maskBoxImage = Symbol("dartx.maskBoxImage"),
    $maskBoxImageOutset: dartx.maskBoxImageOutset = Symbol("dartx.maskBoxImageOutset"),
    $maskBoxImageRepeat: dartx.maskBoxImageRepeat = Symbol("dartx.maskBoxImageRepeat"),
    $maskBoxImageSlice: dartx.maskBoxImageSlice = Symbol("dartx.maskBoxImageSlice"),
    $maskBoxImageSource: dartx.maskBoxImageSource = Symbol("dartx.maskBoxImageSource"),
    $maskBoxImageWidth: dartx.maskBoxImageWidth = Symbol("dartx.maskBoxImageWidth"),
    $maskClip: dartx.maskClip = Symbol("dartx.maskClip"),
    $maskComposite: dartx.maskComposite = Symbol("dartx.maskComposite"),
    $maskImage: dartx.maskImage = Symbol("dartx.maskImage"),
    $maskOrigin: dartx.maskOrigin = Symbol("dartx.maskOrigin"),
    $maskPosition: dartx.maskPosition = Symbol("dartx.maskPosition"),
    $maskPositionX: dartx.maskPositionX = Symbol("dartx.maskPositionX"),
    $maskPositionY: dartx.maskPositionY = Symbol("dartx.maskPositionY"),
    $maskRepeat: dartx.maskRepeat = Symbol("dartx.maskRepeat"),
    $maskRepeatX: dartx.maskRepeatX = Symbol("dartx.maskRepeatX"),
    $maskRepeatY: dartx.maskRepeatY = Symbol("dartx.maskRepeatY"),
    $maskSize: dartx.maskSize = Symbol("dartx.maskSize"),
    $maskSourceType: dartx.maskSourceType = Symbol("dartx.maskSourceType"),
    $maxLogicalHeight: dartx.maxLogicalHeight = Symbol("dartx.maxLogicalHeight"),
    $maxLogicalWidth: dartx.maxLogicalWidth = Symbol("dartx.maxLogicalWidth"),
    $maxZoom: dartx.maxZoom = Symbol("dartx.maxZoom"),
    $minLogicalHeight: dartx.minLogicalHeight = Symbol("dartx.minLogicalHeight"),
    $minLogicalWidth: dartx.minLogicalWidth = Symbol("dartx.minLogicalWidth"),
    $minZoom: dartx.minZoom = Symbol("dartx.minZoom"),
    $mixBlendMode: dartx.mixBlendMode = Symbol("dartx.mixBlendMode"),
    $objectFit: dartx.objectFit = Symbol("dartx.objectFit"),
    $objectPosition: dartx.objectPosition = Symbol("dartx.objectPosition"),
    $opacity: dartx.opacity = Symbol("dartx.opacity"),
    $order: dartx.order = Symbol("dartx.order"),
    $orphans: dartx.orphans = Symbol("dartx.orphans"),
    $outlineOffset: dartx.outlineOffset = Symbol("dartx.outlineOffset"),
    $overflowWrap: dartx.overflowWrap = Symbol("dartx.overflowWrap"),
    $overflowX: dartx.overflowX = Symbol("dartx.overflowX"),
    $overflowY: dartx.overflowY = Symbol("dartx.overflowY"),
    $paddingAfter: dartx.paddingAfter = Symbol("dartx.paddingAfter"),
    $paddingBefore: dartx.paddingBefore = Symbol("dartx.paddingBefore"),
    $paddingEnd: dartx.paddingEnd = Symbol("dartx.paddingEnd"),
    $paddingStart: dartx.paddingStart = Symbol("dartx.paddingStart"),
    $page: dartx.page = Symbol("dartx.page"),
    $perspective: dartx.perspective = Symbol("dartx.perspective"),
    $perspectiveOrigin: dartx.perspectiveOrigin = Symbol("dartx.perspectiveOrigin"),
    $perspectiveOriginX: dartx.perspectiveOriginX = Symbol("dartx.perspectiveOriginX"),
    $perspectiveOriginY: dartx.perspectiveOriginY = Symbol("dartx.perspectiveOriginY"),
    $pointerEvents: dartx.pointerEvents = Symbol("dartx.pointerEvents"),
    $printColorAdjust: dartx.printColorAdjust = Symbol("dartx.printColorAdjust"),
    $resize: dartx.resize = Symbol("dartx.resize"),
    $rowGap: dartx.rowGap = Symbol("dartx.rowGap"),
    $rtlOrdering: dartx.rtlOrdering = Symbol("dartx.rtlOrdering"),
    $rubyPosition: dartx.rubyPosition = Symbol("dartx.rubyPosition"),
    $scrollBehavior: dartx.scrollBehavior = Symbol("dartx.scrollBehavior"),
    $shapeImageThreshold: dartx.shapeImageThreshold = Symbol("dartx.shapeImageThreshold"),
    $shapeMargin: dartx.shapeMargin = Symbol("dartx.shapeMargin"),
    $shapeOutside: dartx.shapeOutside = Symbol("dartx.shapeOutside"),
    $speak: dartx.speak = Symbol("dartx.speak"),
    $tabSize: dartx.tabSize = Symbol("dartx.tabSize"),
    $tapHighlightColor: dartx.tapHighlightColor = Symbol("dartx.tapHighlightColor"),
    $textAlignLast: dartx.textAlignLast = Symbol("dartx.textAlignLast"),
    $textCombine: dartx.textCombine = Symbol("dartx.textCombine"),
    $textDecorationColor: dartx.textDecorationColor = Symbol("dartx.textDecorationColor"),
    $textDecorationLine: dartx.textDecorationLine = Symbol("dartx.textDecorationLine"),
    $textDecorationStyle: dartx.textDecorationStyle = Symbol("dartx.textDecorationStyle"),
    $textDecorationsInEffect: dartx.textDecorationsInEffect = Symbol("dartx.textDecorationsInEffect"),
    $textEmphasis: dartx.textEmphasis = Symbol("dartx.textEmphasis"),
    $textEmphasisColor: dartx.textEmphasisColor = Symbol("dartx.textEmphasisColor"),
    $textEmphasisPosition: dartx.textEmphasisPosition = Symbol("dartx.textEmphasisPosition"),
    $textEmphasisStyle: dartx.textEmphasisStyle = Symbol("dartx.textEmphasisStyle"),
    $textFillColor: dartx.textFillColor = Symbol("dartx.textFillColor"),
    $textJustify: dartx.textJustify = Symbol("dartx.textJustify"),
    $textLineThroughColor: dartx.textLineThroughColor = Symbol("dartx.textLineThroughColor"),
    $textLineThroughMode: dartx.textLineThroughMode = Symbol("dartx.textLineThroughMode"),
    $textLineThroughStyle: dartx.textLineThroughStyle = Symbol("dartx.textLineThroughStyle"),
    $textLineThroughWidth: dartx.textLineThroughWidth = Symbol("dartx.textLineThroughWidth"),
    $textOrientation: dartx.textOrientation = Symbol("dartx.textOrientation"),
    $textOverflow: dartx.textOverflow = Symbol("dartx.textOverflow"),
    $textOverlineColor: dartx.textOverlineColor = Symbol("dartx.textOverlineColor"),
    $textOverlineMode: dartx.textOverlineMode = Symbol("dartx.textOverlineMode"),
    $textOverlineStyle: dartx.textOverlineStyle = Symbol("dartx.textOverlineStyle"),
    $textOverlineWidth: dartx.textOverlineWidth = Symbol("dartx.textOverlineWidth"),
    $textRendering: dartx.textRendering = Symbol("dartx.textRendering"),
    $textSecurity: dartx.textSecurity = Symbol("dartx.textSecurity"),
    $textShadow: dartx.textShadow = Symbol("dartx.textShadow"),
    $textStroke: dartx.textStroke = Symbol("dartx.textStroke"),
    $textStrokeColor: dartx.textStrokeColor = Symbol("dartx.textStrokeColor"),
    $textStrokeWidth: dartx.textStrokeWidth = Symbol("dartx.textStrokeWidth"),
    $textUnderlineColor: dartx.textUnderlineColor = Symbol("dartx.textUnderlineColor"),
    $textUnderlineMode: dartx.textUnderlineMode = Symbol("dartx.textUnderlineMode"),
    $textUnderlinePosition: dartx.textUnderlinePosition = Symbol("dartx.textUnderlinePosition"),
    $textUnderlineStyle: dartx.textUnderlineStyle = Symbol("dartx.textUnderlineStyle"),
    $textUnderlineWidth: dartx.textUnderlineWidth = Symbol("dartx.textUnderlineWidth"),
    $touchAction: dartx.touchAction = Symbol("dartx.touchAction"),
    $touchActionDelay: dartx.touchActionDelay = Symbol("dartx.touchActionDelay"),
    $transformOrigin: dartx.transformOrigin = Symbol("dartx.transformOrigin"),
    $transformOriginX: dartx.transformOriginX = Symbol("dartx.transformOriginX"),
    $transformOriginY: dartx.transformOriginY = Symbol("dartx.transformOriginY"),
    $transformOriginZ: dartx.transformOriginZ = Symbol("dartx.transformOriginZ"),
    $transformStyle: dartx.transformStyle = Symbol("dartx.transformStyle"),
    $transition: dartx.transition = Symbol("dartx.transition"),
    $transitionDelay: dartx.transitionDelay = Symbol("dartx.transitionDelay"),
    $transitionDuration: dartx.transitionDuration = Symbol("dartx.transitionDuration"),
    $transitionProperty: dartx.transitionProperty = Symbol("dartx.transitionProperty"),
    $transitionTimingFunction: dartx.transitionTimingFunction = Symbol("dartx.transitionTimingFunction"),
    $unicodeRange: dartx.unicodeRange = Symbol("dartx.unicodeRange"),
    $userDrag: dartx.userDrag = Symbol("dartx.userDrag"),
    $userModify: dartx.userModify = Symbol("dartx.userModify"),
    $userSelect: dartx.userSelect = Symbol("dartx.userSelect"),
    $userZoom: dartx.userZoom = Symbol("dartx.userZoom"),
    $widows: dartx.widows = Symbol("dartx.widows"),
    $willChange: dartx.willChange = Symbol("dartx.willChange"),
    $wordBreak: dartx.wordBreak = Symbol("dartx.wordBreak"),
    $wordWrap: dartx.wordWrap = Symbol("dartx.wordWrap"),
    $wrapFlow: dartx.wrapFlow = Symbol("dartx.wrapFlow"),
    $wrapThrough: dartx.wrapThrough = Symbol("dartx.wrapThrough"),
    $writingMode: dartx.writingMode = Symbol("dartx.writingMode"),
    $zoom: dartx.zoom = Symbol("dartx.zoom"),
    _elementIterable: dart.privateName(html$, "_elementIterable"),
    _elementCssStyleDeclarationSetIterable: dart.privateName(html$, "_elementCssStyleDeclarationSetIterable"),
    _setAll: dart.privateName(html$, "_setAll"),
    $ownerRule: dartx.ownerRule = Symbol("dartx.ownerRule"),
    $rules: dartx.rules = Symbol("dartx.rules"),
    $addRule: dartx.addRule = Symbol("dartx.addRule"),
    $removeRule: dartx.removeRule = Symbol("dartx.removeRule"),
    $ownerNode: dartx.ownerNode = Symbol("dartx.ownerNode"),
    $componentAtIndex: dartx.componentAtIndex = Symbol("dartx.componentAtIndex"),
    $toMatrix: dartx.toMatrix = Symbol("dartx.toMatrix"),
    $unit: dartx.unit = Symbol("dartx.unit"),
    $fragmentAtIndex: dartx.fragmentAtIndex = Symbol("dartx.fragmentAtIndex"),
    $fallback: dartx.fallback = Symbol("dartx.fallback"),
    $variable: dartx.variable = Symbol("dartx.variable"),
    _define_1: dart.privateName(html$, "_define_1"),
    _define_2: dart.privateName(html$, "_define_2"),
    $define: dartx.define = Symbol("dartx.define"),
    $whenDefined: dartx.whenDefined = Symbol("dartx.whenDefined"),
    _dartDetail: dart.privateName(html$, "_dartDetail"),
    _initCustomEvent: dart.privateName(html$, "_initCustomEvent"),
    _detail: dart.privateName(html$, "_detail"),
    _get__detail: dart.privateName(html$, "_get__detail"),
    $options: dartx.options = Symbol("dartx.options"),
    $dropEffect: dartx.dropEffect = Symbol("dartx.dropEffect"),
    $effectAllowed: dartx.effectAllowed = Symbol("dartx.effectAllowed"),
    $files: dartx.files = Symbol("dartx.files"),
    $items: dartx.items = Symbol("dartx.items"),
    $types: dartx.types = Symbol("dartx.types"),
    $clearData: dartx.clearData = Symbol("dartx.clearData"),
    $getData: dartx.getData = Symbol("dartx.getData"),
    $setData: dartx.setData = Symbol("dartx.setData"),
    $setDragImage: dartx.setDragImage = Symbol("dartx.setDragImage"),
    _webkitGetAsEntry: dart.privateName(html$, "_webkitGetAsEntry"),
    $getAsEntry: dartx.getAsEntry = Symbol("dartx.getAsEntry"),
    $getAsFile: dartx.getAsFile = Symbol("dartx.getAsFile"),
    $addData: dartx.addData = Symbol("dartx.addData"),
    $addFile: dartx.addFile = Symbol("dartx.addFile"),
    _postMessage_1: dart.privateName(html$, "_postMessage_1"),
    _postMessage_2: dart.privateName(html$, "_postMessage_2"),
    _webkitRequestFileSystem: dart.privateName(html$, "_webkitRequestFileSystem"),
    $requestFileSystemSync: dartx.requestFileSystemSync = Symbol("dartx.requestFileSystemSync"),
    $resolveLocalFileSystemSyncUrl: dartx.resolveLocalFileSystemSyncUrl = Symbol("dartx.resolveLocalFileSystemSyncUrl"),
    _webkitResolveLocalFileSystemUrl: dart.privateName(html$, "_webkitResolveLocalFileSystemUrl"),
    $addressSpace: dartx.addressSpace = Symbol("dartx.addressSpace"),
    $caches: dartx.caches = Symbol("dartx.caches"),
    $crypto: dartx.crypto = Symbol("dartx.crypto"),
    $indexedDB: dartx.indexedDB = Symbol("dartx.indexedDB"),
    $isSecureContext: dartx.isSecureContext = Symbol("dartx.isSecureContext"),
    $location: dartx.location = Symbol("dartx.location"),
    $navigator: dartx.navigator = Symbol("dartx.navigator"),
    $performance: dartx.performance = Symbol("dartx.performance"),
    $self: dartx.self = Symbol("dartx.self"),
    $importScripts: dartx.importScripts = Symbol("dartx.importScripts"),
    $atob: dartx.atob = Symbol("dartx.atob"),
    $btoa: dartx.btoa = Symbol("dartx.btoa"),
    _setInterval_String: dart.privateName(html$, "_setInterval_String"),
    _setTimeout_String: dart.privateName(html$, "_setTimeout_String"),
    _clearInterval: dart.privateName(html$, "_clearInterval"),
    _clearTimeout: dart.privateName(html$, "_clearTimeout"),
    _setInterval: dart.privateName(html$, "_setInterval"),
    _setTimeout: dart.privateName(html$, "_setTimeout"),
    $queryUsageAndQuota: dartx.queryUsageAndQuota = Symbol("dartx.queryUsageAndQuota"),
    $requestQuota: dartx.requestQuota = Symbol("dartx.requestQuota"),
    $lineNumber: dartx.lineNumber = Symbol("dartx.lineNumber"),
    $sourceFile: dartx.sourceFile = Symbol("dartx.sourceFile"),
    $cornerPoints: dartx.cornerPoints = Symbol("dartx.cornerPoints"),
    $rawValue: dartx.rawValue = Symbol("dartx.rawValue"),
    $landmarks: dartx.landmarks = Symbol("dartx.landmarks"),
    $acceleration: dartx.acceleration = Symbol("dartx.acceleration"),
    $accelerationIncludingGravity: dartx.accelerationIncludingGravity = Symbol("dartx.accelerationIncludingGravity"),
    $interval: dartx.interval = Symbol("dartx.interval"),
    $rotationRate: dartx.rotationRate = Symbol("dartx.rotationRate"),
    $absolute: dartx.absolute = Symbol("dartx.absolute"),
    $alpha: dartx.alpha = Symbol("dartx.alpha"),
    $beta: dartx.beta = Symbol("dartx.beta"),
    $gamma: dartx.gamma = Symbol("dartx.gamma"),
    $show: dartx.show = Symbol("dartx.show"),
    $showModal: dartx.showModal = Symbol("dartx.showModal"),
    _getDirectory: dart.privateName(html$, "_getDirectory"),
    $createDirectory: dartx.createDirectory = Symbol("dartx.createDirectory"),
    _createReader: dart.privateName(html$, "_createReader"),
    $createReader: dartx.createReader = Symbol("dartx.createReader"),
    $getDirectory: dartx.getDirectory = Symbol("dartx.getDirectory"),
    _getFile: dart.privateName(html$, "_getFile"),
    $createFile: dartx.createFile = Symbol("dartx.createFile"),
    $getFile: dartx.getFile = Symbol("dartx.getFile"),
    __getDirectory_1: dart.privateName(html$, "__getDirectory_1"),
    __getDirectory_2: dart.privateName(html$, "__getDirectory_2"),
    __getDirectory_3: dart.privateName(html$, "__getDirectory_3"),
    __getDirectory_4: dart.privateName(html$, "__getDirectory_4"),
    __getDirectory: dart.privateName(html$, "__getDirectory"),
    __getFile_1: dart.privateName(html$, "__getFile_1"),
    __getFile_2: dart.privateName(html$, "__getFile_2"),
    __getFile_3: dart.privateName(html$, "__getFile_3"),
    __getFile_4: dart.privateName(html$, "__getFile_4"),
    __getFile: dart.privateName(html$, "__getFile"),
    _removeRecursively: dart.privateName(html$, "_removeRecursively"),
    $removeRecursively: dartx.removeRecursively = Symbol("dartx.removeRecursively"),
    $filesystem: dartx.filesystem = Symbol("dartx.filesystem"),
    $fullPath: dartx.fullPath = Symbol("dartx.fullPath"),
    $isDirectory: dartx.isDirectory = Symbol("dartx.isDirectory"),
    $isFile: dartx.isFile = Symbol("dartx.isFile"),
    _copyTo: dart.privateName(html$, "_copyTo"),
    $copyTo: dartx.copyTo = Symbol("dartx.copyTo"),
    _getMetadata: dart.privateName(html$, "_getMetadata")
  };
  var S$1 = {
    $getMetadata: dartx.getMetadata = Symbol("dartx.getMetadata"),
    _getParent: dart.privateName(html$, "_getParent"),
    $getParent: dartx.getParent = Symbol("dartx.getParent"),
    _moveTo: dart.privateName(html$, "_moveTo"),
    _remove$1: dart.privateName(html$, "_remove"),
    $toUrl: dartx.toUrl = Symbol("dartx.toUrl"),
    _readEntries: dart.privateName(html$, "_readEntries"),
    $readEntries: dartx.readEntries = Symbol("dartx.readEntries"),
    _body: dart.privateName(html$, "_body"),
    $contentType: dartx.contentType = Symbol("dartx.contentType"),
    $cookie: dartx.cookie = Symbol("dartx.cookie"),
    $currentScript: dartx.currentScript = Symbol("dartx.currentScript"),
    _get_window: dart.privateName(html$, "_get_window"),
    $window: dartx.window = Symbol("dartx.window"),
    $documentElement: dartx.documentElement = Symbol("dartx.documentElement"),
    $domain: dartx.domain = Symbol("dartx.domain"),
    $fullscreenEnabled: dartx.fullscreenEnabled = Symbol("dartx.fullscreenEnabled"),
    _head$1: dart.privateName(html$, "_head"),
    $implementation: dartx.implementation = Symbol("dartx.implementation"),
    _lastModified: dart.privateName(html$, "_lastModified"),
    _preferredStylesheetSet: dart.privateName(html$, "_preferredStylesheetSet"),
    _referrer: dart.privateName(html$, "_referrer"),
    $rootElement: dartx.rootElement = Symbol("dartx.rootElement"),
    $rootScroller: dartx.rootScroller = Symbol("dartx.rootScroller"),
    $scrollingElement: dartx.scrollingElement = Symbol("dartx.scrollingElement"),
    _selectedStylesheetSet: dart.privateName(html$, "_selectedStylesheetSet"),
    $suborigin: dartx.suborigin = Symbol("dartx.suborigin"),
    _title: dart.privateName(html$, "_title"),
    _visibilityState: dart.privateName(html$, "_visibilityState"),
    _webkitFullscreenElement: dart.privateName(html$, "_webkitFullscreenElement"),
    _webkitFullscreenEnabled: dart.privateName(html$, "_webkitFullscreenEnabled"),
    _webkitHidden: dart.privateName(html$, "_webkitHidden"),
    _webkitVisibilityState: dart.privateName(html$, "_webkitVisibilityState"),
    $adoptNode: dartx.adoptNode = Symbol("dartx.adoptNode"),
    _caretRangeFromPoint: dart.privateName(html$, "_caretRangeFromPoint"),
    $createDocumentFragment: dartx.createDocumentFragment = Symbol("dartx.createDocumentFragment"),
    _createElement: dart.privateName(html$, "_createElement"),
    _createElementNS: dart.privateName(html$, "_createElementNS"),
    $createRange: dartx.createRange = Symbol("dartx.createRange"),
    _createTextNode: dart.privateName(html$, "_createTextNode"),
    _createTouch_1: dart.privateName(html$, "_createTouch_1"),
    _createTouch_2: dart.privateName(html$, "_createTouch_2"),
    _createTouch_3: dart.privateName(html$, "_createTouch_3"),
    _createTouch_4: dart.privateName(html$, "_createTouch_4"),
    _createTouch_5: dart.privateName(html$, "_createTouch_5"),
    _createTouch: dart.privateName(html$, "_createTouch"),
    _createTouchList: dart.privateName(html$, "_createTouchList"),
    $execCommand: dartx.execCommand = Symbol("dartx.execCommand"),
    $exitFullscreen: dartx.exitFullscreen = Symbol("dartx.exitFullscreen"),
    $exitPointerLock: dartx.exitPointerLock = Symbol("dartx.exitPointerLock"),
    $getElementsByName: dartx.getElementsByName = Symbol("dartx.getElementsByName"),
    $getElementsByTagName: dartx.getElementsByTagName = Symbol("dartx.getElementsByTagName"),
    $importNode: dartx.importNode = Symbol("dartx.importNode"),
    $queryCommandEnabled: dartx.queryCommandEnabled = Symbol("dartx.queryCommandEnabled"),
    $queryCommandIndeterm: dartx.queryCommandIndeterm = Symbol("dartx.queryCommandIndeterm"),
    $queryCommandState: dartx.queryCommandState = Symbol("dartx.queryCommandState"),
    $queryCommandSupported: dartx.queryCommandSupported = Symbol("dartx.queryCommandSupported"),
    $queryCommandValue: dartx.queryCommandValue = Symbol("dartx.queryCommandValue"),
    _webkitExitFullscreen: dart.privateName(html$, "_webkitExitFullscreen"),
    $activeElement: dartx.activeElement = Symbol("dartx.activeElement"),
    $fullscreenElement: dartx.fullscreenElement = Symbol("dartx.fullscreenElement"),
    $pointerLockElement: dartx.pointerLockElement = Symbol("dartx.pointerLockElement"),
    _styleSheets: dart.privateName(html$, "_styleSheets"),
    _elementFromPoint: dart.privateName(html$, "_elementFromPoint"),
    $elementsFromPoint: dartx.elementsFromPoint = Symbol("dartx.elementsFromPoint"),
    $fonts: dartx.fonts = Symbol("dartx.fonts"),
    $getElementById: dartx.getElementById = Symbol("dartx.getElementById"),
    $onPointerLockChange: dartx.onPointerLockChange = Symbol("dartx.onPointerLockChange"),
    $onPointerLockError: dartx.onPointerLockError = Symbol("dartx.onPointerLockError"),
    $onReadyStateChange: dartx.onReadyStateChange = Symbol("dartx.onReadyStateChange"),
    $onSecurityPolicyViolation: dartx.onSecurityPolicyViolation = Symbol("dartx.onSecurityPolicyViolation"),
    $onSelectionChange: dartx.onSelectionChange = Symbol("dartx.onSelectionChange"),
    _createElement_2: dart.privateName(html$, "_createElement_2"),
    _createElementNS_2: dart.privateName(html$, "_createElementNS_2"),
    $createElementNS: dartx.createElementNS = Symbol("dartx.createElementNS"),
    _createNodeIterator: dart.privateName(html$, "_createNodeIterator"),
    _createTreeWalker: dart.privateName(html$, "_createTreeWalker"),
    $visibilityState: dartx.visibilityState = Symbol("dartx.visibilityState"),
    _docChildren: dart.privateName(html$, "_docChildren"),
    $styleSheets: dartx.styleSheets = Symbol("dartx.styleSheets"),
    $elementFromPoint: dartx.elementFromPoint = Symbol("dartx.elementFromPoint"),
    $getSelection: dartx.getSelection = Symbol("dartx.getSelection"),
    $createDocument: dartx.createDocument = Symbol("dartx.createDocument"),
    $createDocumentType: dartx.createDocumentType = Symbol("dartx.createDocumentType"),
    $hasFeature: dartx.hasFeature = Symbol("dartx.hasFeature"),
    $a: dartx.a = Symbol("dartx.a"),
    $b: dartx.b = Symbol("dartx.b"),
    $c: dartx.c = Symbol("dartx.c"),
    $d: dartx.d = Symbol("dartx.d"),
    $e: dartx.e = Symbol("dartx.e"),
    $f: dartx.f = Symbol("dartx.f"),
    $m11: dartx.m11 = Symbol("dartx.m11"),
    $m12: dartx.m12 = Symbol("dartx.m12"),
    $m13: dartx.m13 = Symbol("dartx.m13"),
    $m14: dartx.m14 = Symbol("dartx.m14"),
    $m21: dartx.m21 = Symbol("dartx.m21"),
    $m22: dartx.m22 = Symbol("dartx.m22"),
    $m23: dartx.m23 = Symbol("dartx.m23"),
    $m24: dartx.m24 = Symbol("dartx.m24"),
    $m31: dartx.m31 = Symbol("dartx.m31"),
    $m32: dartx.m32 = Symbol("dartx.m32"),
    $m33: dartx.m33 = Symbol("dartx.m33"),
    $m34: dartx.m34 = Symbol("dartx.m34"),
    $m41: dartx.m41 = Symbol("dartx.m41"),
    $m42: dartx.m42 = Symbol("dartx.m42"),
    $m43: dartx.m43 = Symbol("dartx.m43"),
    $m44: dartx.m44 = Symbol("dartx.m44"),
    $invertSelf: dartx.invertSelf = Symbol("dartx.invertSelf"),
    _multiplySelf_1: dart.privateName(html$, "_multiplySelf_1"),
    _multiplySelf_2: dart.privateName(html$, "_multiplySelf_2"),
    $multiplySelf: dartx.multiplySelf = Symbol("dartx.multiplySelf"),
    _preMultiplySelf_1: dart.privateName(html$, "_preMultiplySelf_1"),
    _preMultiplySelf_2: dart.privateName(html$, "_preMultiplySelf_2"),
    $preMultiplySelf: dartx.preMultiplySelf = Symbol("dartx.preMultiplySelf"),
    $rotateAxisAngleSelf: dartx.rotateAxisAngleSelf = Symbol("dartx.rotateAxisAngleSelf"),
    $rotateFromVectorSelf: dartx.rotateFromVectorSelf = Symbol("dartx.rotateFromVectorSelf"),
    $rotateSelf: dartx.rotateSelf = Symbol("dartx.rotateSelf"),
    $scale3dSelf: dartx.scale3dSelf = Symbol("dartx.scale3dSelf"),
    $scaleSelf: dartx.scaleSelf = Symbol("dartx.scaleSelf"),
    $setMatrixValue: dartx.setMatrixValue = Symbol("dartx.setMatrixValue"),
    $skewXSelf: dartx.skewXSelf = Symbol("dartx.skewXSelf"),
    $skewYSelf: dartx.skewYSelf = Symbol("dartx.skewYSelf"),
    $translateSelf: dartx.translateSelf = Symbol("dartx.translateSelf"),
    $isIdentity: dartx.isIdentity = Symbol("dartx.isIdentity"),
    $flipX: dartx.flipX = Symbol("dartx.flipX"),
    $flipY: dartx.flipY = Symbol("dartx.flipY"),
    $inverse: dartx.inverse = Symbol("dartx.inverse"),
    _multiply_1: dart.privateName(html$, "_multiply_1"),
    _multiply_2: dart.privateName(html$, "_multiply_2"),
    $multiply: dartx.multiply = Symbol("dartx.multiply"),
    $rotateAxisAngle: dartx.rotateAxisAngle = Symbol("dartx.rotateAxisAngle"),
    $rotateFromVector: dartx.rotateFromVector = Symbol("dartx.rotateFromVector"),
    $scale3d: dartx.scale3d = Symbol("dartx.scale3d"),
    $skewX: dartx.skewX = Symbol("dartx.skewX"),
    $skewY: dartx.skewY = Symbol("dartx.skewY"),
    $toFloat32Array: dartx.toFloat32Array = Symbol("dartx.toFloat32Array"),
    $toFloat64Array: dartx.toFloat64Array = Symbol("dartx.toFloat64Array"),
    _transformPoint_1: dart.privateName(html$, "_transformPoint_1"),
    _transformPoint_2: dart.privateName(html$, "_transformPoint_2"),
    $transformPoint: dartx.transformPoint = Symbol("dartx.transformPoint"),
    $parseFromString: dartx.parseFromString = Symbol("dartx.parseFromString"),
    $w: dartx.w = Symbol("dartx.w"),
    _matrixTransform_1: dart.privateName(html$, "_matrixTransform_1"),
    _matrixTransform_2: dart.privateName(html$, "_matrixTransform_2"),
    $matrixTransform: dartx.matrixTransform = Symbol("dartx.matrixTransform"),
    $p1: dartx.p1 = Symbol("dartx.p1"),
    $p2: dartx.p2 = Symbol("dartx.p2"),
    $p3: dartx.p3 = Symbol("dartx.p3"),
    $p4: dartx.p4 = Symbol("dartx.p4"),
    $getBounds: dartx.getBounds = Symbol("dartx.getBounds"),
    __delete__: dart.privateName(html$, "__delete__"),
    $replace: dartx.replace = Symbol("dartx.replace"),
    $supports: dartx.supports = Symbol("dartx.supports"),
    $toggle: dartx.toggle = Symbol("dartx.toggle"),
    _childElements: dart.privateName(html$, "_childElements"),
    _element: dart.privateName(html$, "_element"),
    _filter$2: dart.privateName(html$, "_filter"),
    _nodeList: dart.privateName(html$, "_nodeList"),
    _forElementList: dart.privateName(html$, "_forElementList"),
    _value$5: dart.privateName(html$, "ScrollAlignment._value"),
    _value$6: dart.privateName(html$, "_value"),
    $colno: dartx.colno = Symbol("dartx.colno"),
    $filename: dartx.filename = Symbol("dartx.filename"),
    $lineno: dartx.lineno = Symbol("dartx.lineno"),
    $withCredentials: dartx.withCredentials = Symbol("dartx.withCredentials"),
    $onOpen: dartx.onOpen = Symbol("dartx.onOpen"),
    _ptr: dart.privateName(html$, "_ptr"),
    $lastEventId: dartx.lastEventId = Symbol("dartx.lastEventId"),
    $ports: dartx.ports = Symbol("dartx.ports"),
    $AddSearchProvider: dartx.AddSearchProvider = Symbol("dartx.AddSearchProvider"),
    $IsSearchProviderInstalled: dartx.IsSearchProviderInstalled = Symbol("dartx.IsSearchProviderInstalled"),
    $provider: dartx.provider = Symbol("dartx.provider"),
    $clientId: dartx.clientId = Symbol("dartx.clientId"),
    $isReload: dartx.isReload = Symbol("dartx.isReload"),
    $preloadResponse: dartx.preloadResponse = Symbol("dartx.preloadResponse"),
    $elements: dartx.elements = Symbol("dartx.elements"),
    $lastModified: dartx.lastModified = Symbol("dartx.lastModified"),
    _get_lastModifiedDate: dart.privateName(html$, "_get_lastModifiedDate"),
    $lastModifiedDate: dartx.lastModifiedDate = Symbol("dartx.lastModifiedDate"),
    $relativePath: dartx.relativePath = Symbol("dartx.relativePath"),
    _createWriter: dart.privateName(html$, "_createWriter"),
    $createWriter: dartx.createWriter = Symbol("dartx.createWriter"),
    _file$1: dart.privateName(html$, "_file"),
    $file: dartx.file = Symbol("dartx.file"),
    $readAsArrayBuffer: dartx.readAsArrayBuffer = Symbol("dartx.readAsArrayBuffer"),
    $readAsDataUrl: dartx.readAsDataUrl = Symbol("dartx.readAsDataUrl"),
    $readAsText: dartx.readAsText = Symbol("dartx.readAsText"),
    $onLoadEnd: dartx.onLoadEnd = Symbol("dartx.onLoadEnd"),
    $onLoadStart: dartx.onLoadStart = Symbol("dartx.onLoadStart"),
    $root: dartx.root = Symbol("dartx.root"),
    $seek: dartx.seek = Symbol("dartx.seek"),
    $write: dartx.write = Symbol("dartx.write"),
    $onWrite: dartx.onWrite = Symbol("dartx.onWrite"),
    $onWriteEnd: dartx.onWriteEnd = Symbol("dartx.onWriteEnd"),
    $onWriteStart: dartx.onWriteStart = Symbol("dartx.onWriteStart"),
    _get_relatedTarget: dart.privateName(html$, "_get_relatedTarget"),
    $relatedTarget: dartx.relatedTarget = Symbol("dartx.relatedTarget"),
    $family: dartx.family = Symbol("dartx.family"),
    $featureSettings: dartx.featureSettings = Symbol("dartx.featureSettings"),
    $loaded: dartx.loaded = Symbol("dartx.loaded"),
    $stretch: dartx.stretch = Symbol("dartx.stretch"),
    $variant: dartx.variant = Symbol("dartx.variant"),
    $weight: dartx.weight = Symbol("dartx.weight"),
    $check: dartx.check = Symbol("dartx.check"),
    $onLoading: dartx.onLoading = Symbol("dartx.onLoading"),
    $onLoadingDone: dartx.onLoadingDone = Symbol("dartx.onLoadingDone"),
    $onLoadingError: dartx.onLoadingError = Symbol("dartx.onLoadingError"),
    $fontfaces: dartx.fontfaces = Symbol("dartx.fontfaces"),
    $appendBlob: dartx.appendBlob = Symbol("dartx.appendBlob"),
    $acceptCharset: dartx.acceptCharset = Symbol("dartx.acceptCharset"),
    $action: dartx.action = Symbol("dartx.action"),
    $enctype: dartx.enctype = Symbol("dartx.enctype"),
    $method: dartx.method = Symbol("dartx.method"),
    $noValidate: dartx.noValidate = Symbol("dartx.noValidate"),
    _requestAutocomplete_1: dart.privateName(html$, "_requestAutocomplete_1"),
    $requestAutocomplete: dartx.requestAutocomplete = Symbol("dartx.requestAutocomplete"),
    $reset: dartx.reset = Symbol("dartx.reset"),
    $submit: dartx.submit = Symbol("dartx.submit"),
    $axes: dartx.axes = Symbol("dartx.axes"),
    $buttons: dartx.buttons = Symbol("dartx.buttons"),
    $connected: dartx.connected = Symbol("dartx.connected"),
    $displayId: dartx.displayId = Symbol("dartx.displayId"),
    $hand: dartx.hand = Symbol("dartx.hand"),
    $mapping: dartx.mapping = Symbol("dartx.mapping"),
    $pose: dartx.pose = Symbol("dartx.pose"),
    $touched: dartx.touched = Symbol("dartx.touched"),
    $gamepad: dartx.gamepad = Symbol("dartx.gamepad"),
    $angularAcceleration: dartx.angularAcceleration = Symbol("dartx.angularAcceleration"),
    $angularVelocity: dartx.angularVelocity = Symbol("dartx.angularVelocity"),
    $hasOrientation: dartx.hasOrientation = Symbol("dartx.hasOrientation"),
    $hasPosition: dartx.hasPosition = Symbol("dartx.hasPosition"),
    $linearAcceleration: dartx.linearAcceleration = Symbol("dartx.linearAcceleration"),
    $linearVelocity: dartx.linearVelocity = Symbol("dartx.linearVelocity"),
    _ensurePosition: dart.privateName(html$, "_ensurePosition"),
    _getCurrentPosition: dart.privateName(html$, "_getCurrentPosition"),
    $getCurrentPosition: dartx.getCurrentPosition = Symbol("dartx.getCurrentPosition"),
    _clearWatch: dart.privateName(html$, "_clearWatch"),
    _watchPosition: dart.privateName(html$, "_watchPosition"),
    $watchPosition: dartx.watchPosition = Symbol("dartx.watchPosition"),
    _getCurrentPosition_1: dart.privateName(html$, "_getCurrentPosition_1"),
    _getCurrentPosition_2: dart.privateName(html$, "_getCurrentPosition_2"),
    _getCurrentPosition_3: dart.privateName(html$, "_getCurrentPosition_3"),
    _watchPosition_1: dart.privateName(html$, "_watchPosition_1"),
    _watchPosition_2: dart.privateName(html$, "_watchPosition_2"),
    _watchPosition_3: dart.privateName(html$, "_watchPosition_3"),
    $newUrl: dartx.newUrl = Symbol("dartx.newUrl"),
    $oldUrl: dartx.oldUrl = Symbol("dartx.oldUrl"),
    $scrollRestoration: dartx.scrollRestoration = Symbol("dartx.scrollRestoration"),
    _get_state: dart.privateName(html$, "_get_state"),
    $back: dartx.back = Symbol("dartx.back"),
    $forward: dartx.forward = Symbol("dartx.forward"),
    $go: dartx.go = Symbol("dartx.go"),
    _pushState_1: dart.privateName(html$, "_pushState_1"),
    $pushState: dartx.pushState = Symbol("dartx.pushState"),
    _replaceState_1: dart.privateName(html$, "_replaceState_1"),
    $replaceState: dartx.replaceState = Symbol("dartx.replaceState"),
    $namedItem: dartx.namedItem = Symbol("dartx.namedItem"),
    $body: dartx.body = Symbol("dartx.body"),
    $caretRangeFromPoint: dartx.caretRangeFromPoint = Symbol("dartx.caretRangeFromPoint"),
    $preferredStylesheetSet: dartx.preferredStylesheetSet = Symbol("dartx.preferredStylesheetSet"),
    $referrer: dartx.referrer = Symbol("dartx.referrer"),
    $selectedStylesheetSet: dartx.selectedStylesheetSet = Symbol("dartx.selectedStylesheetSet"),
    $onVisibilityChange: dartx.onVisibilityChange = Symbol("dartx.onVisibilityChange"),
    $createElementUpgrader: dartx.createElementUpgrader = Symbol("dartx.createElementUpgrader"),
    _item: dart.privateName(html$, "_item"),
    $responseHeaders: dartx.responseHeaders = Symbol("dartx.responseHeaders"),
    _get_response: dart.privateName(html$, "_get_response"),
    $responseText: dartx.responseText = Symbol("dartx.responseText"),
    $responseType: dartx.responseType = Symbol("dartx.responseType"),
    $responseUrl: dartx.responseUrl = Symbol("dartx.responseUrl"),
    $responseXml: dartx.responseXml = Symbol("dartx.responseXml"),
    $statusText: dartx.statusText = Symbol("dartx.statusText"),
    $timeout: dartx.timeout = Symbol("dartx.timeout"),
    $upload: dartx.upload = Symbol("dartx.upload"),
    $getAllResponseHeaders: dartx.getAllResponseHeaders = Symbol("dartx.getAllResponseHeaders"),
    $getResponseHeader: dartx.getResponseHeader = Symbol("dartx.getResponseHeader"),
    $overrideMimeType: dartx.overrideMimeType = Symbol("dartx.overrideMimeType"),
    $send: dartx.send = Symbol("dartx.send"),
    $setRequestHeader: dartx.setRequestHeader = Symbol("dartx.setRequestHeader"),
    $onTimeout: dartx.onTimeout = Symbol("dartx.onTimeout"),
    $allow: dartx.allow = Symbol("dartx.allow"),
    $allowFullscreen: dartx.allowFullscreen = Symbol("dartx.allowFullscreen"),
    $allowPaymentRequest: dartx.allowPaymentRequest = Symbol("dartx.allowPaymentRequest"),
    _get_contentWindow: dart.privateName(html$, "_get_contentWindow"),
    $contentWindow: dartx.contentWindow = Symbol("dartx.contentWindow"),
    $csp: dartx.csp = Symbol("dartx.csp"),
    $sandbox: dartx.sandbox = Symbol("dartx.sandbox"),
    $srcdoc: dartx.srcdoc = Symbol("dartx.srcdoc"),
    $didTimeout: dartx.didTimeout = Symbol("dartx.didTimeout"),
    $timeRemaining: dartx.timeRemaining = Symbol("dartx.timeRemaining"),
    $transferFromImageBitmap: dartx.transferFromImageBitmap = Symbol("dartx.transferFromImageBitmap"),
    $track: dartx.track = Symbol("dartx.track"),
    $getPhotoCapabilities: dartx.getPhotoCapabilities = Symbol("dartx.getPhotoCapabilities"),
    $getPhotoSettings: dartx.getPhotoSettings = Symbol("dartx.getPhotoSettings"),
    $grabFrame: dartx.grabFrame = Symbol("dartx.grabFrame"),
    $setOptions: dartx.setOptions = Symbol("dartx.setOptions"),
    $takePhoto: dartx.takePhoto = Symbol("dartx.takePhoto"),
    $async: dartx.async = Symbol("dartx.async"),
    $complete: dartx.complete = Symbol("dartx.complete"),
    $isMap: dartx.isMap = Symbol("dartx.isMap"),
    $naturalHeight: dartx.naturalHeight = Symbol("dartx.naturalHeight"),
    $naturalWidth: dartx.naturalWidth = Symbol("dartx.naturalWidth"),
    $sizes: dartx.sizes = Symbol("dartx.sizes"),
    $srcset: dartx.srcset = Symbol("dartx.srcset"),
    $useMap: dartx.useMap = Symbol("dartx.useMap"),
    $decode: dartx.decode = Symbol("dartx.decode"),
    $firesTouchEvents: dartx.firesTouchEvents = Symbol("dartx.firesTouchEvents"),
    $accept: dartx.accept = Symbol("dartx.accept"),
    $autocapitalize: dartx.autocapitalize = Symbol("dartx.autocapitalize"),
    $capture: dartx.capture = Symbol("dartx.capture"),
    $defaultChecked: dartx.defaultChecked = Symbol("dartx.defaultChecked"),
    $defaultValue: dartx.defaultValue = Symbol("dartx.defaultValue"),
    $dirName: dartx.dirName = Symbol("dartx.dirName"),
    $incremental: dartx.incremental = Symbol("dartx.incremental"),
    $indeterminate: dartx.indeterminate = Symbol("dartx.indeterminate"),
    $list: dartx.list = Symbol("dartx.list"),
    $max: dartx.max = Symbol("dartx.max"),
    $maxLength: dartx.maxLength = Symbol("dartx.maxLength"),
    $min: dartx.min = Symbol("dartx.min"),
    $minLength: dartx.minLength = Symbol("dartx.minLength"),
    $multiple: dartx.multiple = Symbol("dartx.multiple"),
    $pattern: dartx.pattern = Symbol("dartx.pattern"),
    $selectionDirection: dartx.selectionDirection = Symbol("dartx.selectionDirection"),
    $selectionEnd: dartx.selectionEnd = Symbol("dartx.selectionEnd"),
    $selectionStart: dartx.selectionStart = Symbol("dartx.selectionStart"),
    $step: dartx.step = Symbol("dartx.step"),
    _get_valueAsDate: dart.privateName(html$, "_get_valueAsDate"),
    $valueAsDate: dartx.valueAsDate = Symbol("dartx.valueAsDate"),
    _set_valueAsDate: dart.privateName(html$, "_set_valueAsDate"),
    $valueAsNumber: dartx.valueAsNumber = Symbol("dartx.valueAsNumber"),
    $directory: dartx.directory = Symbol("dartx.directory"),
    $setRangeText: dartx.setRangeText = Symbol("dartx.setRangeText"),
    $setSelectionRange: dartx.setSelectionRange = Symbol("dartx.setSelectionRange"),
    $stepDown: dartx.stepDown = Symbol("dartx.stepDown"),
    $stepUp: dartx.stepUp = Symbol("dartx.stepUp"),
    files: dart.privateName(html$, "FileUploadInputElement.files"),
    _registerForeignFetch_1: dart.privateName(html$, "_registerForeignFetch_1"),
    $registerForeignFetch: dartx.registerForeignFetch = Symbol("dartx.registerForeignFetch"),
    $rootMargin: dartx.rootMargin = Symbol("dartx.rootMargin"),
    $thresholds: dartx.thresholds = Symbol("dartx.thresholds"),
    $disconnect: dartx.disconnect = Symbol("dartx.disconnect"),
    $takeRecords: dartx.takeRecords = Symbol("dartx.takeRecords"),
    $boundingClientRect: dartx.boundingClientRect = Symbol("dartx.boundingClientRect"),
    $intersectionRatio: dartx.intersectionRatio = Symbol("dartx.intersectionRatio"),
    $intersectionRect: dartx.intersectionRect = Symbol("dartx.intersectionRect"),
    $isIntersecting: dartx.isIntersecting = Symbol("dartx.isIntersecting"),
    $rootBounds: dartx.rootBounds = Symbol("dartx.rootBounds"),
    _initKeyboardEvent: dart.privateName(html$, "_initKeyboardEvent"),
    $keyCode: dartx.keyCode = Symbol("dartx.keyCode"),
    $charCode: dartx.charCode = Symbol("dartx.charCode"),
    $which: dartx.which = Symbol("dartx.which"),
    $altKey: dartx.altKey = Symbol("dartx.altKey"),
    _charCode: dart.privateName(html$, "_charCode"),
    $ctrlKey: dartx.ctrlKey = Symbol("dartx.ctrlKey"),
    $isComposing: dartx.isComposing = Symbol("dartx.isComposing"),
    _keyCode: dart.privateName(html$, "_keyCode"),
    $metaKey: dartx.metaKey = Symbol("dartx.metaKey"),
    $repeat: dartx.repeat = Symbol("dartx.repeat"),
    $shiftKey: dartx.shiftKey = Symbol("dartx.shiftKey"),
    $getModifierState: dartx.getModifierState = Symbol("dartx.getModifierState"),
    $control: dartx.control = Symbol("dartx.control"),
    $htmlFor: dartx.htmlFor = Symbol("dartx.htmlFor"),
    $as: dartx.as = Symbol("dartx.as"),
    $import: dartx.import = Symbol("dartx.import"),
    $integrity: dartx.integrity = Symbol("dartx.integrity"),
    $relList: dartx.relList = Symbol("dartx.relList"),
    $scope: dartx.scope = Symbol("dartx.scope"),
    $sheet: dartx.sheet = Symbol("dartx.sheet"),
    $supportsImport: dartx.supportsImport = Symbol("dartx.supportsImport"),
    $ancestorOrigins: dartx.ancestorOrigins = Symbol("dartx.ancestorOrigins"),
    $trustedHref: dartx.trustedHref = Symbol("dartx.trustedHref"),
    $assign: dartx.assign = Symbol("dartx.assign"),
    $reload: dartx.reload = Symbol("dartx.reload"),
    $areas: dartx.areas = Symbol("dartx.areas"),
    $decodingInfo: dartx.decodingInfo = Symbol("dartx.decodingInfo"),
    $encodingInfo: dartx.encodingInfo = Symbol("dartx.encodingInfo"),
    $powerEfficient: dartx.powerEfficient = Symbol("dartx.powerEfficient"),
    $smooth: dartx.smooth = Symbol("dartx.smooth"),
    $supported: dartx.supported = Symbol("dartx.supported"),
    $deviceId: dartx.deviceId = Symbol("dartx.deviceId"),
    $groupId: dartx.groupId = Symbol("dartx.groupId"),
    $enumerateDevices: dartx.enumerateDevices = Symbol("dartx.enumerateDevices"),
    _getSupportedConstraints_1: dart.privateName(html$, "_getSupportedConstraints_1"),
    $getSupportedConstraints: dartx.getSupportedConstraints = Symbol("dartx.getSupportedConstraints"),
    $getUserMedia: dartx.getUserMedia = Symbol("dartx.getUserMedia"),
    $initData: dartx.initData = Symbol("dartx.initData"),
    $initDataType: dartx.initDataType = Symbol("dartx.initDataType"),
    $messageType: dartx.messageType = Symbol("dartx.messageType"),
    $closed: dartx.closed = Symbol("dartx.closed"),
    $expiration: dartx.expiration = Symbol("dartx.expiration"),
    $keyStatuses: dartx.keyStatuses = Symbol("dartx.keyStatuses"),
    $sessionId: dartx.sessionId = Symbol("dartx.sessionId"),
    $generateRequest: dartx.generateRequest = Symbol("dartx.generateRequest"),
    _update$1: dart.privateName(html$, "_update"),
    $keySystem: dartx.keySystem = Symbol("dartx.keySystem"),
    $createMediaKeys: dartx.createMediaKeys = Symbol("dartx.createMediaKeys"),
    _getConfiguration_1: dart.privateName(html$, "_getConfiguration_1"),
    $getConfiguration: dartx.getConfiguration = Symbol("dartx.getConfiguration"),
    _createSession: dart.privateName(html$, "_createSession"),
    $getStatusForPolicy: dartx.getStatusForPolicy = Symbol("dartx.getStatusForPolicy"),
    $setServerCertificate: dartx.setServerCertificate = Symbol("dartx.setServerCertificate"),
    $minHdcpVersion: dartx.minHdcpVersion = Symbol("dartx.minHdcpVersion"),
    $mediaText: dartx.mediaText = Symbol("dartx.mediaText"),
    $appendMedium: dartx.appendMedium = Symbol("dartx.appendMedium"),
    $deleteMedium: dartx.deleteMedium = Symbol("dartx.deleteMedium"),
    $album: dartx.album = Symbol("dartx.album"),
    $artist: dartx.artist = Symbol("dartx.artist"),
    $artwork: dartx.artwork = Symbol("dartx.artwork"),
    $addListener: dartx.addListener = Symbol("dartx.addListener"),
    $removeListener: dartx.removeListener = Symbol("dartx.removeListener"),
    $audioBitsPerSecond: dartx.audioBitsPerSecond = Symbol("dartx.audioBitsPerSecond"),
    $mimeType: dartx.mimeType = Symbol("dartx.mimeType"),
    $stream: dartx.stream = Symbol("dartx.stream"),
    $videoBitsPerSecond: dartx.videoBitsPerSecond = Symbol("dartx.videoBitsPerSecond"),
    $requestData: dartx.requestData = Symbol("dartx.requestData"),
    $resume: dartx.resume = Symbol("dartx.resume"),
    $metadata: dartx.metadata = Symbol("dartx.metadata"),
    $playbackState: dartx.playbackState = Symbol("dartx.playbackState"),
    $setActionHandler: dartx.setActionHandler = Symbol("dartx.setActionHandler"),
    $activeSourceBuffers: dartx.activeSourceBuffers = Symbol("dartx.activeSourceBuffers"),
    $sourceBuffers: dartx.sourceBuffers = Symbol("dartx.sourceBuffers"),
    $addSourceBuffer: dartx.addSourceBuffer = Symbol("dartx.addSourceBuffer"),
    $clearLiveSeekableRange: dartx.clearLiveSeekableRange = Symbol("dartx.clearLiveSeekableRange"),
    $endOfStream: dartx.endOfStream = Symbol("dartx.endOfStream"),
    $removeSourceBuffer: dartx.removeSourceBuffer = Symbol("dartx.removeSourceBuffer"),
    $setLiveSeekableRange: dartx.setLiveSeekableRange = Symbol("dartx.setLiveSeekableRange"),
    $active: dartx.active = Symbol("dartx.active"),
    $addTrack: dartx.addTrack = Symbol("dartx.addTrack"),
    $getAudioTracks: dartx.getAudioTracks = Symbol("dartx.getAudioTracks"),
    $getTrackById: dartx.getTrackById = Symbol("dartx.getTrackById"),
    $getTracks: dartx.getTracks = Symbol("dartx.getTracks"),
    $getVideoTracks: dartx.getVideoTracks = Symbol("dartx.getVideoTracks"),
    $removeTrack: dartx.removeTrack = Symbol("dartx.removeTrack"),
    $onAddTrack: dartx.onAddTrack = Symbol("dartx.onAddTrack"),
    $onRemoveTrack: dartx.onRemoveTrack = Symbol("dartx.onRemoveTrack"),
    $jsHeapSizeLimit: dartx.jsHeapSizeLimit = Symbol("dartx.jsHeapSizeLimit"),
    $totalJSHeapSize: dartx.totalJSHeapSize = Symbol("dartx.totalJSHeapSize"),
    $usedJSHeapSize: dartx.usedJSHeapSize = Symbol("dartx.usedJSHeapSize"),
    $port1: dartx.port1 = Symbol("dartx.port1"),
    $port2: dartx.port2 = Symbol("dartx.port2"),
    _initMessageEvent: dart.privateName(html$, "_initMessageEvent"),
    _get_data: dart.privateName(html$, "_get_data"),
    _get_source: dart.privateName(html$, "_get_source"),
    _initMessageEvent_1: dart.privateName(html$, "_initMessageEvent_1"),
    _start$5: dart.privateName(html$, "_start"),
    $httpEquiv: dartx.httpEquiv = Symbol("dartx.httpEquiv"),
    _get_modificationTime: dart.privateName(html$, "_get_modificationTime"),
    $modificationTime: dartx.modificationTime = Symbol("dartx.modificationTime"),
    $high: dartx.high = Symbol("dartx.high"),
    $low: dartx.low = Symbol("dartx.low"),
    $optimum: dartx.optimum = Symbol("dartx.optimum"),
    $inputs: dartx.inputs = Symbol("dartx.inputs"),
    $outputs: dartx.outputs = Symbol("dartx.outputs"),
    $sysexEnabled: dartx.sysexEnabled = Symbol("dartx.sysexEnabled"),
    $onMidiMessage: dartx.onMidiMessage = Symbol("dartx.onMidiMessage"),
    $connection: dartx.connection = Symbol("dartx.connection"),
    $manufacturer: dartx.manufacturer = Symbol("dartx.manufacturer"),
    _getItem: dart.privateName(html$, "_getItem"),
    $description: dartx.description = Symbol("dartx.description"),
    $enabledPlugin: dartx.enabledPlugin = Symbol("dartx.enabledPlugin"),
    $suffixes: dartx.suffixes = Symbol("dartx.suffixes"),
    $cite: dartx.cite = Symbol("dartx.cite"),
    $dateTime: dartx.dateTime = Symbol("dartx.dateTime"),
    _initMouseEvent: dart.privateName(html$, "_initMouseEvent"),
    $button: dartx.button = Symbol("dartx.button"),
    _clientX: dart.privateName(html$, "_clientX"),
    _clientY: dart.privateName(html$, "_clientY"),
    $fromElement: dartx.fromElement = Symbol("dartx.fromElement"),
    _layerX: dart.privateName(html$, "_layerX"),
    _layerY: dart.privateName(html$, "_layerY"),
    _movementX: dart.privateName(html$, "_movementX"),
    _movementY: dart.privateName(html$, "_movementY"),
    _pageX: dart.privateName(html$, "_pageX"),
    _pageY: dart.privateName(html$, "_pageY"),
    $region: dartx.region = Symbol("dartx.region"),
    _screenX: dart.privateName(html$, "_screenX"),
    _screenY: dart.privateName(html$, "_screenY"),
    $toElement: dartx.toElement = Symbol("dartx.toElement"),
    _initMouseEvent_1: dart.privateName(html$, "_initMouseEvent_1"),
    $movement: dartx.movement = Symbol("dartx.movement"),
    $screen: dartx.screen = Symbol("dartx.screen"),
    $layer: dartx.layer = Symbol("dartx.layer"),
    $dataTransfer: dartx.dataTransfer = Symbol("dartx.dataTransfer"),
    $attrChange: dartx.attrChange = Symbol("dartx.attrChange"),
    $attrName: dartx.attrName = Symbol("dartx.attrName"),
    $newValue: dartx.newValue = Symbol("dartx.newValue"),
    $prevValue: dartx.prevValue = Symbol("dartx.prevValue"),
    $relatedNode: dartx.relatedNode = Symbol("dartx.relatedNode"),
    $initMutationEvent: dartx.initMutationEvent = Symbol("dartx.initMutationEvent"),
    _observe_1$1: dart.privateName(html$, "_observe_1"),
    _observe_2: dart.privateName(html$, "_observe_2"),
    _observe: dart.privateName(html$, "_observe"),
    _call: dart.privateName(html$, "_call"),
    $addedNodes: dartx.addedNodes = Symbol("dartx.addedNodes"),
    $attributeName: dartx.attributeName = Symbol("dartx.attributeName"),
    $attributeNamespace: dartx.attributeNamespace = Symbol("dartx.attributeNamespace"),
    $nextSibling: dartx.nextSibling = Symbol("dartx.nextSibling"),
    $oldValue: dartx.oldValue = Symbol("dartx.oldValue"),
    $previousSibling: dartx.previousSibling = Symbol("dartx.previousSibling"),
    $removedNodes: dartx.removedNodes = Symbol("dartx.removedNodes")
  };
  var S$2 = {
    $disable: dartx.disable = Symbol("dartx.disable"),
    $enable: dartx.enable = Symbol("dartx.enable"),
    $getState: dartx.getState = Symbol("dartx.getState"),
    _getGamepads: dart.privateName(html$, "_getGamepads"),
    $getGamepads: dartx.getGamepads = Symbol("dartx.getGamepads"),
    $language: dartx.language = Symbol("dartx.language"),
    _ensureGetUserMedia: dart.privateName(html$, "_ensureGetUserMedia"),
    _getUserMedia: dart.privateName(html$, "_getUserMedia"),
    $budget: dartx.budget = Symbol("dartx.budget"),
    $clipboard: dartx.clipboard = Symbol("dartx.clipboard"),
    $credentials: dartx.credentials = Symbol("dartx.credentials"),
    $deviceMemory: dartx.deviceMemory = Symbol("dartx.deviceMemory"),
    $doNotTrack: dartx.doNotTrack = Symbol("dartx.doNotTrack"),
    $geolocation: dartx.geolocation = Symbol("dartx.geolocation"),
    $maxTouchPoints: dartx.maxTouchPoints = Symbol("dartx.maxTouchPoints"),
    $mediaCapabilities: dartx.mediaCapabilities = Symbol("dartx.mediaCapabilities"),
    $mediaDevices: dartx.mediaDevices = Symbol("dartx.mediaDevices"),
    $mediaSession: dartx.mediaSession = Symbol("dartx.mediaSession"),
    $mimeTypes: dartx.mimeTypes = Symbol("dartx.mimeTypes"),
    $nfc: dartx.nfc = Symbol("dartx.nfc"),
    $permissions: dartx.permissions = Symbol("dartx.permissions"),
    $presentation: dartx.presentation = Symbol("dartx.presentation"),
    $productSub: dartx.productSub = Symbol("dartx.productSub"),
    $serviceWorker: dartx.serviceWorker = Symbol("dartx.serviceWorker"),
    $storage: dartx.storage = Symbol("dartx.storage"),
    $vendor: dartx.vendor = Symbol("dartx.vendor"),
    $vendorSub: dartx.vendorSub = Symbol("dartx.vendorSub"),
    $vr: dartx.vr = Symbol("dartx.vr"),
    $persistentStorage: dartx.persistentStorage = Symbol("dartx.persistentStorage"),
    $temporaryStorage: dartx.temporaryStorage = Symbol("dartx.temporaryStorage"),
    $cancelKeyboardLock: dartx.cancelKeyboardLock = Symbol("dartx.cancelKeyboardLock"),
    $getBattery: dartx.getBattery = Symbol("dartx.getBattery"),
    $getInstalledRelatedApps: dartx.getInstalledRelatedApps = Symbol("dartx.getInstalledRelatedApps"),
    $getVRDisplays: dartx.getVRDisplays = Symbol("dartx.getVRDisplays"),
    $registerProtocolHandler: dartx.registerProtocolHandler = Symbol("dartx.registerProtocolHandler"),
    _requestKeyboardLock_1: dart.privateName(html$, "_requestKeyboardLock_1"),
    _requestKeyboardLock_2: dart.privateName(html$, "_requestKeyboardLock_2"),
    $requestKeyboardLock: dartx.requestKeyboardLock = Symbol("dartx.requestKeyboardLock"),
    $requestMidiAccess: dartx.requestMidiAccess = Symbol("dartx.requestMidiAccess"),
    $requestMediaKeySystemAccess: dartx.requestMediaKeySystemAccess = Symbol("dartx.requestMediaKeySystemAccess"),
    $sendBeacon: dartx.sendBeacon = Symbol("dartx.sendBeacon"),
    $share: dartx.share = Symbol("dartx.share"),
    $webdriver: dartx.webdriver = Symbol("dartx.webdriver"),
    $cookieEnabled: dartx.cookieEnabled = Symbol("dartx.cookieEnabled"),
    $appCodeName: dartx.appCodeName = Symbol("dartx.appCodeName"),
    $appName: dartx.appName = Symbol("dartx.appName"),
    $appVersion: dartx.appVersion = Symbol("dartx.appVersion"),
    $dartEnabled: dartx.dartEnabled = Symbol("dartx.dartEnabled"),
    $platform: dartx.platform = Symbol("dartx.platform"),
    $product: dartx.product = Symbol("dartx.product"),
    $userAgent: dartx.userAgent = Symbol("dartx.userAgent"),
    $languages: dartx.languages = Symbol("dartx.languages"),
    $onLine: dartx.onLine = Symbol("dartx.onLine"),
    $hardwareConcurrency: dartx.hardwareConcurrency = Symbol("dartx.hardwareConcurrency"),
    $constraintName: dartx.constraintName = Symbol("dartx.constraintName"),
    $downlink: dartx.downlink = Symbol("dartx.downlink"),
    $downlinkMax: dartx.downlinkMax = Symbol("dartx.downlinkMax"),
    $effectiveType: dartx.effectiveType = Symbol("dartx.effectiveType"),
    $rtt: dartx.rtt = Symbol("dartx.rtt"),
    $pointerBeforeReferenceNode: dartx.pointerBeforeReferenceNode = Symbol("dartx.pointerBeforeReferenceNode"),
    $referenceNode: dartx.referenceNode = Symbol("dartx.referenceNode"),
    $whatToShow: dartx.whatToShow = Symbol("dartx.whatToShow"),
    $detach: dartx.detach = Symbol("dartx.detach"),
    $actions: dartx.actions = Symbol("dartx.actions"),
    $badge: dartx.badge = Symbol("dartx.badge"),
    $icon: dartx.icon = Symbol("dartx.icon"),
    $image: dartx.image = Symbol("dartx.image"),
    $renotify: dartx.renotify = Symbol("dartx.renotify"),
    $requireInteraction: dartx.requireInteraction = Symbol("dartx.requireInteraction"),
    $silent: dartx.silent = Symbol("dartx.silent"),
    $tag: dartx.tag = Symbol("dartx.tag"),
    $vibrate: dartx.vibrate = Symbol("dartx.vibrate"),
    $onShow: dartx.onShow = Symbol("dartx.onShow"),
    $notification: dartx.notification = Symbol("dartx.notification"),
    $reply: dartx.reply = Symbol("dartx.reply"),
    $convertToBlob: dartx.convertToBlob = Symbol("dartx.convertToBlob"),
    $transferToImageBitmap: dartx.transferToImageBitmap = Symbol("dartx.transferToImageBitmap"),
    $commit: dartx.commit = Symbol("dartx.commit"),
    $defaultSelected: dartx.defaultSelected = Symbol("dartx.defaultSelected"),
    $constraint: dartx.constraint = Symbol("dartx.constraint"),
    $persisted: dartx.persisted = Symbol("dartx.persisted"),
    $devicePixelRatio: dartx.devicePixelRatio = Symbol("dartx.devicePixelRatio"),
    $registerPaint: dartx.registerPaint = Symbol("dartx.registerPaint"),
    $additionalData: dartx.additionalData = Symbol("dartx.additionalData"),
    $idName: dartx.idName = Symbol("dartx.idName"),
    $passwordName: dartx.passwordName = Symbol("dartx.passwordName"),
    $addPath: dartx.addPath = Symbol("dartx.addPath"),
    $addressLine: dartx.addressLine = Symbol("dartx.addressLine"),
    $city: dartx.city = Symbol("dartx.city"),
    $country: dartx.country = Symbol("dartx.country"),
    $dependentLocality: dartx.dependentLocality = Symbol("dartx.dependentLocality"),
    $languageCode: dartx.languageCode = Symbol("dartx.languageCode"),
    $organization: dartx.organization = Symbol("dartx.organization"),
    $phone: dartx.phone = Symbol("dartx.phone"),
    $postalCode: dartx.postalCode = Symbol("dartx.postalCode"),
    $recipient: dartx.recipient = Symbol("dartx.recipient"),
    $sortingCode: dartx.sortingCode = Symbol("dartx.sortingCode"),
    $instruments: dartx.instruments = Symbol("dartx.instruments"),
    $userHint: dartx.userHint = Symbol("dartx.userHint"),
    $shippingAddress: dartx.shippingAddress = Symbol("dartx.shippingAddress"),
    $shippingOption: dartx.shippingOption = Symbol("dartx.shippingOption"),
    $shippingType: dartx.shippingType = Symbol("dartx.shippingType"),
    $canMakePayment: dartx.canMakePayment = Symbol("dartx.canMakePayment"),
    $instrumentKey: dartx.instrumentKey = Symbol("dartx.instrumentKey"),
    $paymentRequestId: dartx.paymentRequestId = Symbol("dartx.paymentRequestId"),
    $total: dartx.total = Symbol("dartx.total"),
    $updateWith: dartx.updateWith = Symbol("dartx.updateWith"),
    $methodName: dartx.methodName = Symbol("dartx.methodName"),
    $payerEmail: dartx.payerEmail = Symbol("dartx.payerEmail"),
    $payerName: dartx.payerName = Symbol("dartx.payerName"),
    $payerPhone: dartx.payerPhone = Symbol("dartx.payerPhone"),
    $requestId: dartx.requestId = Symbol("dartx.requestId"),
    $memory: dartx.memory = Symbol("dartx.memory"),
    $navigation: dartx.navigation = Symbol("dartx.navigation"),
    $timeOrigin: dartx.timeOrigin = Symbol("dartx.timeOrigin"),
    $clearMarks: dartx.clearMarks = Symbol("dartx.clearMarks"),
    $clearMeasures: dartx.clearMeasures = Symbol("dartx.clearMeasures"),
    $clearResourceTimings: dartx.clearResourceTimings = Symbol("dartx.clearResourceTimings"),
    $getEntries: dartx.getEntries = Symbol("dartx.getEntries"),
    $getEntriesByName: dartx.getEntriesByName = Symbol("dartx.getEntriesByName"),
    $getEntriesByType: dartx.getEntriesByType = Symbol("dartx.getEntriesByType"),
    _mark_1: dart.privateName(html$, "_mark_1"),
    _mark_2: dart.privateName(html$, "_mark_2"),
    $mark: dartx.mark = Symbol("dartx.mark"),
    _measure_1: dart.privateName(html$, "_measure_1"),
    _measure_2: dart.privateName(html$, "_measure_2"),
    _measure_3: dart.privateName(html$, "_measure_3"),
    _measure_4: dart.privateName(html$, "_measure_4"),
    $measure: dartx.measure = Symbol("dartx.measure"),
    $now: dartx.now = Symbol("dartx.now"),
    $setResourceTimingBufferSize: dartx.setResourceTimingBufferSize = Symbol("dartx.setResourceTimingBufferSize"),
    $entryType: dartx.entryType = Symbol("dartx.entryType"),
    $attribution: dartx.attribution = Symbol("dartx.attribution"),
    $redirectCount: dartx.redirectCount = Symbol("dartx.redirectCount"),
    $domComplete: dartx.domComplete = Symbol("dartx.domComplete"),
    $domContentLoadedEventEnd: dartx.domContentLoadedEventEnd = Symbol("dartx.domContentLoadedEventEnd"),
    $domContentLoadedEventStart: dartx.domContentLoadedEventStart = Symbol("dartx.domContentLoadedEventStart"),
    $domInteractive: dartx.domInteractive = Symbol("dartx.domInteractive"),
    $loadEventEnd: dartx.loadEventEnd = Symbol("dartx.loadEventEnd"),
    $loadEventStart: dartx.loadEventStart = Symbol("dartx.loadEventStart"),
    $unloadEventEnd: dartx.unloadEventEnd = Symbol("dartx.unloadEventEnd"),
    $unloadEventStart: dartx.unloadEventStart = Symbol("dartx.unloadEventStart"),
    $connectEnd: dartx.connectEnd = Symbol("dartx.connectEnd"),
    $connectStart: dartx.connectStart = Symbol("dartx.connectStart"),
    $decodedBodySize: dartx.decodedBodySize = Symbol("dartx.decodedBodySize"),
    $domainLookupEnd: dartx.domainLookupEnd = Symbol("dartx.domainLookupEnd"),
    $domainLookupStart: dartx.domainLookupStart = Symbol("dartx.domainLookupStart"),
    $encodedBodySize: dartx.encodedBodySize = Symbol("dartx.encodedBodySize"),
    $fetchStart: dartx.fetchStart = Symbol("dartx.fetchStart"),
    $initiatorType: dartx.initiatorType = Symbol("dartx.initiatorType"),
    $nextHopProtocol: dartx.nextHopProtocol = Symbol("dartx.nextHopProtocol"),
    $redirectEnd: dartx.redirectEnd = Symbol("dartx.redirectEnd"),
    $redirectStart: dartx.redirectStart = Symbol("dartx.redirectStart"),
    $requestStart: dartx.requestStart = Symbol("dartx.requestStart"),
    $responseEnd: dartx.responseEnd = Symbol("dartx.responseEnd"),
    $responseStart: dartx.responseStart = Symbol("dartx.responseStart"),
    $secureConnectionStart: dartx.secureConnectionStart = Symbol("dartx.secureConnectionStart"),
    $serverTiming: dartx.serverTiming = Symbol("dartx.serverTiming"),
    $transferSize: dartx.transferSize = Symbol("dartx.transferSize"),
    $workerStart: dartx.workerStart = Symbol("dartx.workerStart"),
    $domLoading: dartx.domLoading = Symbol("dartx.domLoading"),
    $navigationStart: dartx.navigationStart = Symbol("dartx.navigationStart"),
    $query: dartx.query = Symbol("dartx.query"),
    $requestAll: dartx.requestAll = Symbol("dartx.requestAll"),
    $revoke: dartx.revoke = Symbol("dartx.revoke"),
    $fillLightMode: dartx.fillLightMode = Symbol("dartx.fillLightMode"),
    $imageHeight: dartx.imageHeight = Symbol("dartx.imageHeight"),
    $imageWidth: dartx.imageWidth = Symbol("dartx.imageWidth"),
    $redEyeReduction: dartx.redEyeReduction = Symbol("dartx.redEyeReduction"),
    $refresh: dartx.refresh = Symbol("dartx.refresh"),
    $isPrimary: dartx.isPrimary = Symbol("dartx.isPrimary"),
    $pointerId: dartx.pointerId = Symbol("dartx.pointerId"),
    $pointerType: dartx.pointerType = Symbol("dartx.pointerType"),
    $pressure: dartx.pressure = Symbol("dartx.pressure"),
    $tangentialPressure: dartx.tangentialPressure = Symbol("dartx.tangentialPressure"),
    $tiltX: dartx.tiltX = Symbol("dartx.tiltX"),
    $tiltY: dartx.tiltY = Symbol("dartx.tiltY"),
    $twist: dartx.twist = Symbol("dartx.twist"),
    $getCoalescedEvents: dartx.getCoalescedEvents = Symbol("dartx.getCoalescedEvents"),
    $defaultRequest: dartx.defaultRequest = Symbol("dartx.defaultRequest"),
    $receiver: dartx.receiver = Symbol("dartx.receiver"),
    $binaryType: dartx.binaryType = Symbol("dartx.binaryType"),
    $terminate: dartx.terminate = Symbol("dartx.terminate"),
    $connections: dartx.connections = Symbol("dartx.connections"),
    $connectionList: dartx.connectionList = Symbol("dartx.connectionList"),
    $getAvailability: dartx.getAvailability = Symbol("dartx.getAvailability"),
    $reconnect: dartx.reconnect = Symbol("dartx.reconnect"),
    $lengthComputable: dartx.lengthComputable = Symbol("dartx.lengthComputable"),
    $promise: dartx.promise = Symbol("dartx.promise"),
    $rawId: dartx.rawId = Symbol("dartx.rawId"),
    $getSubscription: dartx.getSubscription = Symbol("dartx.getSubscription"),
    $permissionState: dartx.permissionState = Symbol("dartx.permissionState"),
    $subscribe: dartx.subscribe = Symbol("dartx.subscribe"),
    $endpoint: dartx.endpoint = Symbol("dartx.endpoint"),
    $expirationTime: dartx.expirationTime = Symbol("dartx.expirationTime"),
    $unsubscribe: dartx.unsubscribe = Symbol("dartx.unsubscribe"),
    $applicationServerKey: dartx.applicationServerKey = Symbol("dartx.applicationServerKey"),
    $userVisibleOnly: dartx.userVisibleOnly = Symbol("dartx.userVisibleOnly"),
    $collapsed: dartx.collapsed = Symbol("dartx.collapsed"),
    $commonAncestorContainer: dartx.commonAncestorContainer = Symbol("dartx.commonAncestorContainer"),
    $endContainer: dartx.endContainer = Symbol("dartx.endContainer"),
    $endOffset: dartx.endOffset = Symbol("dartx.endOffset"),
    $startContainer: dartx.startContainer = Symbol("dartx.startContainer"),
    $startOffset: dartx.startOffset = Symbol("dartx.startOffset"),
    $cloneContents: dartx.cloneContents = Symbol("dartx.cloneContents"),
    $cloneRange: dartx.cloneRange = Symbol("dartx.cloneRange"),
    $collapse: dartx.collapse = Symbol("dartx.collapse"),
    $compareBoundaryPoints: dartx.compareBoundaryPoints = Symbol("dartx.compareBoundaryPoints"),
    $comparePoint: dartx.comparePoint = Symbol("dartx.comparePoint"),
    $createContextualFragment: dartx.createContextualFragment = Symbol("dartx.createContextualFragment"),
    $deleteContents: dartx.deleteContents = Symbol("dartx.deleteContents"),
    $extractContents: dartx.extractContents = Symbol("dartx.extractContents"),
    $insertNode: dartx.insertNode = Symbol("dartx.insertNode"),
    $isPointInRange: dartx.isPointInRange = Symbol("dartx.isPointInRange"),
    $selectNode: dartx.selectNode = Symbol("dartx.selectNode"),
    $selectNodeContents: dartx.selectNodeContents = Symbol("dartx.selectNodeContents"),
    $setEnd: dartx.setEnd = Symbol("dartx.setEnd"),
    $setEndAfter: dartx.setEndAfter = Symbol("dartx.setEndAfter"),
    $setEndBefore: dartx.setEndBefore = Symbol("dartx.setEndBefore"),
    $setStart: dartx.setStart = Symbol("dartx.setStart"),
    $setStartAfter: dartx.setStartAfter = Symbol("dartx.setStartAfter"),
    $setStartBefore: dartx.setStartBefore = Symbol("dartx.setStartBefore"),
    $surroundContents: dartx.surroundContents = Symbol("dartx.surroundContents"),
    $cancelWatchAvailability: dartx.cancelWatchAvailability = Symbol("dartx.cancelWatchAvailability"),
    $watchAvailability: dartx.watchAvailability = Symbol("dartx.watchAvailability"),
    $contentRect: dartx.contentRect = Symbol("dartx.contentRect"),
    $expires: dartx.expires = Symbol("dartx.expires"),
    $getFingerprints: dartx.getFingerprints = Symbol("dartx.getFingerprints"),
    $bufferedAmount: dartx.bufferedAmount = Symbol("dartx.bufferedAmount"),
    $bufferedAmountLowThreshold: dartx.bufferedAmountLowThreshold = Symbol("dartx.bufferedAmountLowThreshold"),
    $maxRetransmitTime: dartx.maxRetransmitTime = Symbol("dartx.maxRetransmitTime"),
    $maxRetransmits: dartx.maxRetransmits = Symbol("dartx.maxRetransmits"),
    $negotiated: dartx.negotiated = Symbol("dartx.negotiated"),
    $ordered: dartx.ordered = Symbol("dartx.ordered"),
    $reliable: dartx.reliable = Symbol("dartx.reliable"),
    $sendBlob: dartx.sendBlob = Symbol("dartx.sendBlob"),
    $sendByteBuffer: dartx.sendByteBuffer = Symbol("dartx.sendByteBuffer"),
    $sendString: dartx.sendString = Symbol("dartx.sendString"),
    $sendTypedData: dartx.sendTypedData = Symbol("dartx.sendTypedData"),
    $channel: dartx.channel = Symbol("dartx.channel"),
    $canInsertDtmf: dartx.canInsertDtmf = Symbol("dartx.canInsertDtmf"),
    $interToneGap: dartx.interToneGap = Symbol("dartx.interToneGap"),
    $toneBuffer: dartx.toneBuffer = Symbol("dartx.toneBuffer"),
    $insertDtmf: dartx.insertDtmf = Symbol("dartx.insertDtmf"),
    $onToneChange: dartx.onToneChange = Symbol("dartx.onToneChange"),
    $tone: dartx.tone = Symbol("dartx.tone"),
    $candidate: dartx.candidate = Symbol("dartx.candidate"),
    $sdpMLineIndex: dartx.sdpMLineIndex = Symbol("dartx.sdpMLineIndex"),
    $sdpMid: dartx.sdpMid = Symbol("dartx.sdpMid"),
    _get_timestamp: dart.privateName(html$, "_get_timestamp"),
    $names: dartx.names = Symbol("dartx.names"),
    $stat: dartx.stat = Symbol("dartx.stat"),
    _getStats: dart.privateName(html$, "_getStats"),
    $getLegacyStats: dartx.getLegacyStats = Symbol("dartx.getLegacyStats"),
    $connectionState: dartx.connectionState = Symbol("dartx.connectionState"),
    $iceConnectionState: dartx.iceConnectionState = Symbol("dartx.iceConnectionState"),
    $iceGatheringState: dartx.iceGatheringState = Symbol("dartx.iceGatheringState"),
    $localDescription: dartx.localDescription = Symbol("dartx.localDescription"),
    $remoteDescription: dartx.remoteDescription = Symbol("dartx.remoteDescription"),
    $signalingState: dartx.signalingState = Symbol("dartx.signalingState"),
    $addIceCandidate: dartx.addIceCandidate = Symbol("dartx.addIceCandidate"),
    _addStream_1: dart.privateName(html$, "_addStream_1"),
    _addStream_2: dart.privateName(html$, "_addStream_2"),
    $addStream: dartx.addStream = Symbol("dartx.addStream"),
    $createAnswer: dartx.createAnswer = Symbol("dartx.createAnswer"),
    $createDtmfSender: dartx.createDtmfSender = Symbol("dartx.createDtmfSender"),
    _createDataChannel_1: dart.privateName(html$, "_createDataChannel_1"),
    _createDataChannel_2: dart.privateName(html$, "_createDataChannel_2"),
    $createDataChannel: dartx.createDataChannel = Symbol("dartx.createDataChannel"),
    $createOffer: dartx.createOffer = Symbol("dartx.createOffer"),
    $getLocalStreams: dartx.getLocalStreams = Symbol("dartx.getLocalStreams"),
    $getReceivers: dartx.getReceivers = Symbol("dartx.getReceivers"),
    $getRemoteStreams: dartx.getRemoteStreams = Symbol("dartx.getRemoteStreams"),
    $getSenders: dartx.getSenders = Symbol("dartx.getSenders"),
    $getStats: dartx.getStats = Symbol("dartx.getStats"),
    $removeStream: dartx.removeStream = Symbol("dartx.removeStream"),
    _setConfiguration_1: dart.privateName(html$, "_setConfiguration_1"),
    $setConfiguration: dartx.setConfiguration = Symbol("dartx.setConfiguration"),
    $setLocalDescription: dartx.setLocalDescription = Symbol("dartx.setLocalDescription"),
    $setRemoteDescription: dartx.setRemoteDescription = Symbol("dartx.setRemoteDescription"),
    $onAddStream: dartx.onAddStream = Symbol("dartx.onAddStream"),
    $onConnectionStateChange: dartx.onConnectionStateChange = Symbol("dartx.onConnectionStateChange"),
    $onDataChannel: dartx.onDataChannel = Symbol("dartx.onDataChannel"),
    $onIceCandidate: dartx.onIceCandidate = Symbol("dartx.onIceCandidate"),
    $onIceConnectionStateChange: dartx.onIceConnectionStateChange = Symbol("dartx.onIceConnectionStateChange"),
    $onNegotiationNeeded: dartx.onNegotiationNeeded = Symbol("dartx.onNegotiationNeeded"),
    $onRemoveStream: dartx.onRemoveStream = Symbol("dartx.onRemoveStream"),
    $onSignalingStateChange: dartx.onSignalingStateChange = Symbol("dartx.onSignalingStateChange"),
    $onTrack: dartx.onTrack = Symbol("dartx.onTrack"),
    $getContributingSources: dartx.getContributingSources = Symbol("dartx.getContributingSources"),
    $sdp: dartx.sdp = Symbol("dartx.sdp"),
    $streams: dartx.streams = Symbol("dartx.streams"),
    _availLeft: dart.privateName(html$, "_availLeft"),
    _availTop: dart.privateName(html$, "_availTop"),
    _availWidth: dart.privateName(html$, "_availWidth"),
    _availHeight: dart.privateName(html$, "_availHeight"),
    $available: dartx.available = Symbol("dartx.available"),
    $colorDepth: dartx.colorDepth = Symbol("dartx.colorDepth"),
    $keepAwake: dartx.keepAwake = Symbol("dartx.keepAwake"),
    $pixelDepth: dartx.pixelDepth = Symbol("dartx.pixelDepth"),
    $lock: dartx.lock = Symbol("dartx.lock"),
    $unlock: dartx.unlock = Symbol("dartx.unlock"),
    $charset: dartx.charset = Symbol("dartx.charset"),
    $defer: dartx.defer = Symbol("dartx.defer"),
    $noModule: dartx.noModule = Symbol("dartx.noModule"),
    $deltaGranularity: dartx.deltaGranularity = Symbol("dartx.deltaGranularity"),
    $deltaX: dartx.deltaX = Symbol("dartx.deltaX"),
    $deltaY: dartx.deltaY = Symbol("dartx.deltaY"),
    $fromUserInput: dartx.fromUserInput = Symbol("dartx.fromUserInput"),
    $inInertialPhase: dartx.inInertialPhase = Symbol("dartx.inInertialPhase"),
    $isBeginning: dartx.isBeginning = Symbol("dartx.isBeginning"),
    $isDirectManipulation: dartx.isDirectManipulation = Symbol("dartx.isDirectManipulation"),
    $isEnding: dartx.isEnding = Symbol("dartx.isEnding"),
    $positionX: dartx.positionX = Symbol("dartx.positionX"),
    $positionY: dartx.positionY = Symbol("dartx.positionY"),
    $velocityX: dartx.velocityX = Symbol("dartx.velocityX"),
    $velocityY: dartx.velocityY = Symbol("dartx.velocityY"),
    $consumeDelta: dartx.consumeDelta = Symbol("dartx.consumeDelta"),
    $distributeToScrollChainDescendant: dartx.distributeToScrollChainDescendant = Symbol("dartx.distributeToScrollChainDescendant"),
    $scrollSource: dartx.scrollSource = Symbol("dartx.scrollSource"),
    $timeRange: dartx.timeRange = Symbol("dartx.timeRange"),
    $blockedUri: dartx.blockedUri = Symbol("dartx.blockedUri"),
    $columnNumber: dartx.columnNumber = Symbol("dartx.columnNumber"),
    $disposition: dartx.disposition = Symbol("dartx.disposition"),
    $documentUri: dartx.documentUri = Symbol("dartx.documentUri"),
    $effectiveDirective: dartx.effectiveDirective = Symbol("dartx.effectiveDirective"),
    $originalPolicy: dartx.originalPolicy = Symbol("dartx.originalPolicy"),
    $sample: dartx.sample = Symbol("dartx.sample"),
    $statusCode: dartx.statusCode = Symbol("dartx.statusCode"),
    $violatedDirective: dartx.violatedDirective = Symbol("dartx.violatedDirective"),
    $selectedIndex: dartx.selectedIndex = Symbol("dartx.selectedIndex"),
    $selectedOptions: dartx.selectedOptions = Symbol("dartx.selectedOptions"),
    $anchorNode: dartx.anchorNode = Symbol("dartx.anchorNode"),
    $anchorOffset: dartx.anchorOffset = Symbol("dartx.anchorOffset"),
    $baseNode: dartx.baseNode = Symbol("dartx.baseNode"),
    $baseOffset: dartx.baseOffset = Symbol("dartx.baseOffset"),
    $extentNode: dartx.extentNode = Symbol("dartx.extentNode"),
    $extentOffset: dartx.extentOffset = Symbol("dartx.extentOffset"),
    $focusNode: dartx.focusNode = Symbol("dartx.focusNode"),
    $focusOffset: dartx.focusOffset = Symbol("dartx.focusOffset"),
    $isCollapsed: dartx.isCollapsed = Symbol("dartx.isCollapsed"),
    $rangeCount: dartx.rangeCount = Symbol("dartx.rangeCount"),
    $addRange: dartx.addRange = Symbol("dartx.addRange"),
    $collapseToEnd: dartx.collapseToEnd = Symbol("dartx.collapseToEnd"),
    $collapseToStart: dartx.collapseToStart = Symbol("dartx.collapseToStart"),
    $containsNode: dartx.containsNode = Symbol("dartx.containsNode"),
    $deleteFromDocument: dartx.deleteFromDocument = Symbol("dartx.deleteFromDocument"),
    $empty: dartx.empty = Symbol("dartx.empty"),
    $extend: dartx.extend = Symbol("dartx.extend"),
    $getRangeAt: dartx.getRangeAt = Symbol("dartx.getRangeAt"),
    $modify: dartx.modify = Symbol("dartx.modify"),
    $removeAllRanges: dartx.removeAllRanges = Symbol("dartx.removeAllRanges"),
    $selectAllChildren: dartx.selectAllChildren = Symbol("dartx.selectAllChildren"),
    $setBaseAndExtent: dartx.setBaseAndExtent = Symbol("dartx.setBaseAndExtent"),
    $setPosition: dartx.setPosition = Symbol("dartx.setPosition"),
    $scriptUrl: dartx.scriptUrl = Symbol("dartx.scriptUrl"),
    $controller: dartx.controller = Symbol("dartx.controller"),
    $getRegistration: dartx.getRegistration = Symbol("dartx.getRegistration"),
    $getRegistrations: dartx.getRegistrations = Symbol("dartx.getRegistrations"),
    $register: dartx.register = Symbol("dartx.register"),
    $clients: dartx.clients = Symbol("dartx.clients"),
    $registration: dartx.registration = Symbol("dartx.registration"),
    $skipWaiting: dartx.skipWaiting = Symbol("dartx.skipWaiting"),
    $onActivate: dartx.onActivate = Symbol("dartx.onActivate"),
    $onFetch: dartx.onFetch = Symbol("dartx.onFetch"),
    $onForeignfetch: dartx.onForeignfetch = Symbol("dartx.onForeignfetch"),
    $onInstall: dartx.onInstall = Symbol("dartx.onInstall"),
    $backgroundFetch: dartx.backgroundFetch = Symbol("dartx.backgroundFetch"),
    $installing: dartx.installing = Symbol("dartx.installing"),
    $navigationPreload: dartx.navigationPreload = Symbol("dartx.navigationPreload"),
    $paymentManager: dartx.paymentManager = Symbol("dartx.paymentManager"),
    $pushManager: dartx.pushManager = Symbol("dartx.pushManager"),
    $sync: dartx.sync = Symbol("dartx.sync"),
    $waiting: dartx.waiting = Symbol("dartx.waiting"),
    $getNotifications: dartx.getNotifications = Symbol("dartx.getNotifications"),
    $showNotification: dartx.showNotification = Symbol("dartx.showNotification"),
    $unregister: dartx.unregister = Symbol("dartx.unregister"),
    $delegatesFocus: dartx.delegatesFocus = Symbol("dartx.delegatesFocus"),
    $olderShadowRoot: dartx.olderShadowRoot = Symbol("dartx.olderShadowRoot"),
    $console: dartx.console = Symbol("dartx.console"),
    $resetStyleInheritance: dartx.resetStyleInheritance = Symbol("dartx.resetStyleInheritance"),
    $applyAuthorStyles: dartx.applyAuthorStyles = Symbol("dartx.applyAuthorStyles"),
    $byteLength: dartx.byteLength = Symbol("dartx.byteLength"),
    $onConnect: dartx.onConnect = Symbol("dartx.onConnect"),
    _assignedNodes_1: dart.privateName(html$, "_assignedNodes_1"),
    _assignedNodes_2: dart.privateName(html$, "_assignedNodes_2"),
    $assignedNodes: dartx.assignedNodes = Symbol("dartx.assignedNodes"),
    $appendWindowEnd: dartx.appendWindowEnd = Symbol("dartx.appendWindowEnd"),
    $appendWindowStart: dartx.appendWindowStart = Symbol("dartx.appendWindowStart"),
    $timestampOffset: dartx.timestampOffset = Symbol("dartx.timestampOffset"),
    $trackDefaults: dartx.trackDefaults = Symbol("dartx.trackDefaults"),
    $updating: dartx.updating = Symbol("dartx.updating"),
    $appendBuffer: dartx.appendBuffer = Symbol("dartx.appendBuffer"),
    $appendTypedData: dartx.appendTypedData = Symbol("dartx.appendTypedData"),
    $addFromString: dartx.addFromString = Symbol("dartx.addFromString"),
    $addFromUri: dartx.addFromUri = Symbol("dartx.addFromUri"),
    $audioTrack: dartx.audioTrack = Symbol("dartx.audioTrack"),
    $continuous: dartx.continuous = Symbol("dartx.continuous"),
    $grammars: dartx.grammars = Symbol("dartx.grammars"),
    $interimResults: dartx.interimResults = Symbol("dartx.interimResults"),
    $maxAlternatives: dartx.maxAlternatives = Symbol("dartx.maxAlternatives"),
    $onAudioEnd: dartx.onAudioEnd = Symbol("dartx.onAudioEnd"),
    $onAudioStart: dartx.onAudioStart = Symbol("dartx.onAudioStart"),
    $onEnd: dartx.onEnd = Symbol("dartx.onEnd"),
    $onNoMatch: dartx.onNoMatch = Symbol("dartx.onNoMatch"),
    $onResult: dartx.onResult = Symbol("dartx.onResult"),
    $onSoundEnd: dartx.onSoundEnd = Symbol("dartx.onSoundEnd"),
    $onSoundStart: dartx.onSoundStart = Symbol("dartx.onSoundStart"),
    $onSpeechEnd: dartx.onSpeechEnd = Symbol("dartx.onSpeechEnd"),
    $onSpeechStart: dartx.onSpeechStart = Symbol("dartx.onSpeechStart"),
    $onStart: dartx.onStart = Symbol("dartx.onStart"),
    $confidence: dartx.confidence = Symbol("dartx.confidence"),
    $transcript: dartx.transcript = Symbol("dartx.transcript"),
    $emma: dartx.emma = Symbol("dartx.emma"),
    $interpretation: dartx.interpretation = Symbol("dartx.interpretation"),
    $resultIndex: dartx.resultIndex = Symbol("dartx.resultIndex"),
    $results: dartx.results = Symbol("dartx.results"),
    $isFinal: dartx.isFinal = Symbol("dartx.isFinal"),
    _getVoices: dart.privateName(html$, "_getVoices"),
    $getVoices: dartx.getVoices = Symbol("dartx.getVoices"),
    $pending: dartx.pending = Symbol("dartx.pending"),
    $speaking: dartx.speaking = Symbol("dartx.speaking"),
    $charIndex: dartx.charIndex = Symbol("dartx.charIndex"),
    $utterance: dartx.utterance = Symbol("dartx.utterance"),
    $pitch: dartx.pitch = Symbol("dartx.pitch"),
    $rate: dartx.rate = Symbol("dartx.rate"),
    $voice: dartx.voice = Symbol("dartx.voice"),
    $onBoundary: dartx.onBoundary = Symbol("dartx.onBoundary"),
    $onMark: dartx.onMark = Symbol("dartx.onMark"),
    $onResume: dartx.onResume = Symbol("dartx.onResume"),
    $localService: dartx.localService = Symbol("dartx.localService"),
    $voiceUri: dartx.voiceUri = Symbol("dartx.voiceUri"),
    _setItem: dart.privateName(html$, "_setItem"),
    _removeItem: dart.privateName(html$, "_removeItem"),
    _key: dart.privateName(html$, "_key"),
    _length$3: dart.privateName(html$, "_length"),
    _initStorageEvent: dart.privateName(html$, "_initStorageEvent"),
    $storageArea: dartx.storageArea = Symbol("dartx.storageArea"),
    $estimate: dartx.estimate = Symbol("dartx.estimate"),
    $persist: dartx.persist = Symbol("dartx.persist"),
    $matchMedium: dartx.matchMedium = Symbol("dartx.matchMedium"),
    $getProperties: dartx.getProperties = Symbol("dartx.getProperties"),
    $lastChance: dartx.lastChance = Symbol("dartx.lastChance"),
    $getTags: dartx.getTags = Symbol("dartx.getTags"),
    $cellIndex: dartx.cellIndex = Symbol("dartx.cellIndex"),
    $headers: dartx.headers = Symbol("dartx.headers"),
    $span: dartx.span = Symbol("dartx.span"),
    _tBodies: dart.privateName(html$, "_tBodies"),
    $tBodies: dartx.tBodies = Symbol("dartx.tBodies"),
    _rows: dart.privateName(html$, "_rows"),
    $rows: dartx.rows = Symbol("dartx.rows"),
    $insertRow: dartx.insertRow = Symbol("dartx.insertRow"),
    $addRow: dartx.addRow = Symbol("dartx.addRow"),
    _createCaption: dart.privateName(html$, "_createCaption"),
    $createCaption: dartx.createCaption = Symbol("dartx.createCaption"),
    _createTBody: dart.privateName(html$, "_createTBody"),
    $createTBody: dartx.createTBody = Symbol("dartx.createTBody"),
    _createTFoot: dart.privateName(html$, "_createTFoot"),
    $createTFoot: dartx.createTFoot = Symbol("dartx.createTFoot"),
    _createTHead: dart.privateName(html$, "_createTHead"),
    $createTHead: dartx.createTHead = Symbol("dartx.createTHead"),
    _insertRow: dart.privateName(html$, "_insertRow"),
    _nativeCreateTBody: dart.privateName(html$, "_nativeCreateTBody"),
    $caption: dartx.caption = Symbol("dartx.caption"),
    $tFoot: dartx.tFoot = Symbol("dartx.tFoot"),
    $tHead: dartx.tHead = Symbol("dartx.tHead"),
    $deleteCaption: dartx.deleteCaption = Symbol("dartx.deleteCaption"),
    $deleteRow: dartx.deleteRow = Symbol("dartx.deleteRow"),
    $deleteTFoot: dartx.deleteTFoot = Symbol("dartx.deleteTFoot"),
    $deleteTHead: dartx.deleteTHead = Symbol("dartx.deleteTHead"),
    _cells: dart.privateName(html$, "_cells"),
    $cells: dartx.cells = Symbol("dartx.cells"),
    $insertCell: dartx.insertCell = Symbol("dartx.insertCell"),
    $addCell: dartx.addCell = Symbol("dartx.addCell"),
    _insertCell: dart.privateName(html$, "_insertCell"),
    $sectionRowIndex: dartx.sectionRowIndex = Symbol("dartx.sectionRowIndex"),
    $deleteCell: dartx.deleteCell = Symbol("dartx.deleteCell"),
    $containerId: dartx.containerId = Symbol("dartx.containerId"),
    $containerName: dartx.containerName = Symbol("dartx.containerName"),
    $containerSrc: dartx.containerSrc = Symbol("dartx.containerSrc"),
    $containerType: dartx.containerType = Symbol("dartx.containerType"),
    $cols: dartx.cols = Symbol("dartx.cols"),
    $textLength: dartx.textLength = Symbol("dartx.textLength"),
    $wrap: dartx.wrap = Symbol("dartx.wrap"),
    _initTextEvent: dart.privateName(html$, "_initTextEvent"),
    $actualBoundingBoxAscent: dartx.actualBoundingBoxAscent = Symbol("dartx.actualBoundingBoxAscent"),
    $actualBoundingBoxDescent: dartx.actualBoundingBoxDescent = Symbol("dartx.actualBoundingBoxDescent"),
    $actualBoundingBoxLeft: dartx.actualBoundingBoxLeft = Symbol("dartx.actualBoundingBoxLeft"),
    $actualBoundingBoxRight: dartx.actualBoundingBoxRight = Symbol("dartx.actualBoundingBoxRight"),
    $alphabeticBaseline: dartx.alphabeticBaseline = Symbol("dartx.alphabeticBaseline"),
    $emHeightAscent: dartx.emHeightAscent = Symbol("dartx.emHeightAscent"),
    $emHeightDescent: dartx.emHeightDescent = Symbol("dartx.emHeightDescent"),
    $fontBoundingBoxAscent: dartx.fontBoundingBoxAscent = Symbol("dartx.fontBoundingBoxAscent"),
    $fontBoundingBoxDescent: dartx.fontBoundingBoxDescent = Symbol("dartx.fontBoundingBoxDescent"),
    $hangingBaseline: dartx.hangingBaseline = Symbol("dartx.hangingBaseline"),
    $ideographicBaseline: dartx.ideographicBaseline = Symbol("dartx.ideographicBaseline"),
    $activeCues: dartx.activeCues = Symbol("dartx.activeCues"),
    $cues: dartx.cues = Symbol("dartx.cues"),
    $addCue: dartx.addCue = Symbol("dartx.addCue"),
    $removeCue: dartx.removeCue = Symbol("dartx.removeCue")
  };
  var S$3 = {
    $onCueChange: dartx.onCueChange = Symbol("dartx.onCueChange"),
    $endTime: dartx.endTime = Symbol("dartx.endTime"),
    $pauseOnExit: dartx.pauseOnExit = Symbol("dartx.pauseOnExit"),
    $onEnter: dartx.onEnter = Symbol("dartx.onEnter"),
    $onExit: dartx.onExit = Symbol("dartx.onExit"),
    $getCueById: dartx.getCueById = Symbol("dartx.getCueById"),
    $end: dartx.end = Symbol("dartx.end"),
    $force: dartx.force = Symbol("dartx.force"),
    $identifier: dartx.identifier = Symbol("dartx.identifier"),
    _radiusX: dart.privateName(html$, "_radiusX"),
    _radiusY: dart.privateName(html$, "_radiusY"),
    $rotationAngle: dartx.rotationAngle = Symbol("dartx.rotationAngle"),
    __clientX: dart.privateName(html$, "__clientX"),
    __clientY: dart.privateName(html$, "__clientY"),
    __screenX: dart.privateName(html$, "__screenX"),
    __screenY: dart.privateName(html$, "__screenY"),
    __pageX: dart.privateName(html$, "__pageX"),
    __pageY: dart.privateName(html$, "__pageY"),
    __radiusX: dart.privateName(html$, "__radiusX"),
    __radiusY: dart.privateName(html$, "__radiusY"),
    $radiusX: dartx.radiusX = Symbol("dartx.radiusX"),
    $radiusY: dartx.radiusY = Symbol("dartx.radiusY"),
    $changedTouches: dartx.changedTouches = Symbol("dartx.changedTouches"),
    $targetTouches: dartx.targetTouches = Symbol("dartx.targetTouches"),
    $touches: dartx.touches = Symbol("dartx.touches"),
    $byteStreamTrackID: dartx.byteStreamTrackID = Symbol("dartx.byteStreamTrackID"),
    $kinds: dartx.kinds = Symbol("dartx.kinds"),
    $srclang: dartx.srclang = Symbol("dartx.srclang"),
    $propertyName: dartx.propertyName = Symbol("dartx.propertyName"),
    $pseudoElement: dartx.pseudoElement = Symbol("dartx.pseudoElement"),
    $currentNode: dartx.currentNode = Symbol("dartx.currentNode"),
    $notifyLockAcquired: dartx.notifyLockAcquired = Symbol("dartx.notifyLockAcquired"),
    $notifyLockReleased: dartx.notifyLockReleased = Symbol("dartx.notifyLockReleased"),
    $pull: dartx.pull = Symbol("dartx.pull"),
    $searchParams: dartx.searchParams = Symbol("dartx.searchParams"),
    $getDevices: dartx.getDevices = Symbol("dartx.getDevices"),
    $getTransformTo: dartx.getTransformTo = Symbol("dartx.getTransformTo"),
    $deviceName: dartx.deviceName = Symbol("dartx.deviceName"),
    $isExternal: dartx.isExternal = Symbol("dartx.isExternal"),
    $requestSession: dartx.requestSession = Symbol("dartx.requestSession"),
    $supportsSession: dartx.supportsSession = Symbol("dartx.supportsSession"),
    $device: dartx.device = Symbol("dartx.device"),
    $capabilities: dartx.capabilities = Symbol("dartx.capabilities"),
    $depthFar: dartx.depthFar = Symbol("dartx.depthFar"),
    $depthNear: dartx.depthNear = Symbol("dartx.depthNear"),
    $displayName: dartx.displayName = Symbol("dartx.displayName"),
    $isPresenting: dartx.isPresenting = Symbol("dartx.isPresenting"),
    $stageParameters: dartx.stageParameters = Symbol("dartx.stageParameters"),
    $cancelAnimationFrame: dartx.cancelAnimationFrame = Symbol("dartx.cancelAnimationFrame"),
    $exitPresent: dartx.exitPresent = Symbol("dartx.exitPresent"),
    $getEyeParameters: dartx.getEyeParameters = Symbol("dartx.getEyeParameters"),
    $getFrameData: dartx.getFrameData = Symbol("dartx.getFrameData"),
    $getLayers: dartx.getLayers = Symbol("dartx.getLayers"),
    $requestAnimationFrame: dartx.requestAnimationFrame = Symbol("dartx.requestAnimationFrame"),
    $requestPresent: dartx.requestPresent = Symbol("dartx.requestPresent"),
    $submitFrame: dartx.submitFrame = Symbol("dartx.submitFrame"),
    $canPresent: dartx.canPresent = Symbol("dartx.canPresent"),
    $hasExternalDisplay: dartx.hasExternalDisplay = Symbol("dartx.hasExternalDisplay"),
    $maxLayers: dartx.maxLayers = Symbol("dartx.maxLayers"),
    $renderHeight: dartx.renderHeight = Symbol("dartx.renderHeight"),
    $renderWidth: dartx.renderWidth = Symbol("dartx.renderWidth"),
    $leftProjectionMatrix: dartx.leftProjectionMatrix = Symbol("dartx.leftProjectionMatrix"),
    $leftViewMatrix: dartx.leftViewMatrix = Symbol("dartx.leftViewMatrix"),
    $rightProjectionMatrix: dartx.rightProjectionMatrix = Symbol("dartx.rightProjectionMatrix"),
    $rightViewMatrix: dartx.rightViewMatrix = Symbol("dartx.rightViewMatrix"),
    $bounds: dartx.bounds = Symbol("dartx.bounds"),
    $emulatedHeight: dartx.emulatedHeight = Symbol("dartx.emulatedHeight"),
    $exclusive: dartx.exclusive = Symbol("dartx.exclusive"),
    $requestFrameOfReference: dartx.requestFrameOfReference = Symbol("dartx.requestFrameOfReference"),
    $session: dartx.session = Symbol("dartx.session"),
    $geometry: dartx.geometry = Symbol("dartx.geometry"),
    $sittingToStandingTransform: dartx.sittingToStandingTransform = Symbol("dartx.sittingToStandingTransform"),
    $sizeX: dartx.sizeX = Symbol("dartx.sizeX"),
    $sizeZ: dartx.sizeZ = Symbol("dartx.sizeZ"),
    $badInput: dartx.badInput = Symbol("dartx.badInput"),
    $customError: dartx.customError = Symbol("dartx.customError"),
    $patternMismatch: dartx.patternMismatch = Symbol("dartx.patternMismatch"),
    $rangeOverflow: dartx.rangeOverflow = Symbol("dartx.rangeOverflow"),
    $rangeUnderflow: dartx.rangeUnderflow = Symbol("dartx.rangeUnderflow"),
    $stepMismatch: dartx.stepMismatch = Symbol("dartx.stepMismatch"),
    $tooLong: dartx.tooLong = Symbol("dartx.tooLong"),
    $tooShort: dartx.tooShort = Symbol("dartx.tooShort"),
    $typeMismatch: dartx.typeMismatch = Symbol("dartx.typeMismatch"),
    $valid: dartx.valid = Symbol("dartx.valid"),
    $valueMissing: dartx.valueMissing = Symbol("dartx.valueMissing"),
    $poster: dartx.poster = Symbol("dartx.poster"),
    $videoHeight: dartx.videoHeight = Symbol("dartx.videoHeight"),
    $videoWidth: dartx.videoWidth = Symbol("dartx.videoWidth"),
    $decodedFrameCount: dartx.decodedFrameCount = Symbol("dartx.decodedFrameCount"),
    $droppedFrameCount: dartx.droppedFrameCount = Symbol("dartx.droppedFrameCount"),
    $getVideoPlaybackQuality: dartx.getVideoPlaybackQuality = Symbol("dartx.getVideoPlaybackQuality"),
    $enterFullscreen: dartx.enterFullscreen = Symbol("dartx.enterFullscreen"),
    $corruptedVideoFrames: dartx.corruptedVideoFrames = Symbol("dartx.corruptedVideoFrames"),
    $creationTime: dartx.creationTime = Symbol("dartx.creationTime"),
    $droppedVideoFrames: dartx.droppedVideoFrames = Symbol("dartx.droppedVideoFrames"),
    $totalVideoFrames: dartx.totalVideoFrames = Symbol("dartx.totalVideoFrames"),
    $sourceBuffer: dartx.sourceBuffer = Symbol("dartx.sourceBuffer"),
    $pageLeft: dartx.pageLeft = Symbol("dartx.pageLeft"),
    $pageTop: dartx.pageTop = Symbol("dartx.pageTop"),
    $align: dartx.align = Symbol("dartx.align"),
    $line: dartx.line = Symbol("dartx.line"),
    $snapToLines: dartx.snapToLines = Symbol("dartx.snapToLines"),
    $vertical: dartx.vertical = Symbol("dartx.vertical"),
    $getCueAsHtml: dartx.getCueAsHtml = Symbol("dartx.getCueAsHtml"),
    $lines: dartx.lines = Symbol("dartx.lines"),
    $regionAnchorX: dartx.regionAnchorX = Symbol("dartx.regionAnchorX"),
    $regionAnchorY: dartx.regionAnchorY = Symbol("dartx.regionAnchorY"),
    $viewportAnchorX: dartx.viewportAnchorX = Symbol("dartx.viewportAnchorX"),
    $viewportAnchorY: dartx.viewportAnchorY = Symbol("dartx.viewportAnchorY"),
    $extensions: dartx.extensions = Symbol("dartx.extensions"),
    _deltaX: dart.privateName(html$, "_deltaX"),
    _deltaY: dart.privateName(html$, "_deltaY"),
    $deltaZ: dartx.deltaZ = Symbol("dartx.deltaZ"),
    $deltaMode: dartx.deltaMode = Symbol("dartx.deltaMode"),
    _wheelDelta: dart.privateName(html$, "_wheelDelta"),
    _wheelDeltaX: dart.privateName(html$, "_wheelDeltaX"),
    _hasInitMouseScrollEvent: dart.privateName(html$, "_hasInitMouseScrollEvent"),
    _initMouseScrollEvent: dart.privateName(html$, "_initMouseScrollEvent"),
    _hasInitWheelEvent: dart.privateName(html$, "_hasInitWheelEvent"),
    _initWheelEvent: dart.privateName(html$, "_initWheelEvent"),
    $animationFrame: dartx.animationFrame = Symbol("dartx.animationFrame"),
    $document: dartx.document = Symbol("dartx.document"),
    _open2: dart.privateName(html$, "_open2"),
    _open3: dart.privateName(html$, "_open3"),
    _location: dart.privateName(html$, "_location"),
    _ensureRequestAnimationFrame: dart.privateName(html$, "_ensureRequestAnimationFrame"),
    _requestAnimationFrame: dart.privateName(html$, "_requestAnimationFrame"),
    _cancelAnimationFrame: dart.privateName(html$, "_cancelAnimationFrame"),
    _requestFileSystem: dart.privateName(html$, "_requestFileSystem"),
    $requestFileSystem: dartx.requestFileSystem = Symbol("dartx.requestFileSystem"),
    $animationWorklet: dartx.animationWorklet = Symbol("dartx.animationWorklet"),
    $applicationCache: dartx.applicationCache = Symbol("dartx.applicationCache"),
    $audioWorklet: dartx.audioWorklet = Symbol("dartx.audioWorklet"),
    $cookieStore: dartx.cookieStore = Symbol("dartx.cookieStore"),
    $customElements: dartx.customElements = Symbol("dartx.customElements"),
    $defaultStatus: dartx.defaultStatus = Symbol("dartx.defaultStatus"),
    $defaultstatus: dartx.defaultstatus = Symbol("dartx.defaultstatus"),
    $external: dartx.external = Symbol("dartx.external"),
    $history: dartx.history = Symbol("dartx.history"),
    $innerHeight: dartx.innerHeight = Symbol("dartx.innerHeight"),
    $innerWidth: dartx.innerWidth = Symbol("dartx.innerWidth"),
    $localStorage: dartx.localStorage = Symbol("dartx.localStorage"),
    $locationbar: dartx.locationbar = Symbol("dartx.locationbar"),
    $menubar: dartx.menubar = Symbol("dartx.menubar"),
    $offscreenBuffering: dartx.offscreenBuffering = Symbol("dartx.offscreenBuffering"),
    _get_opener: dart.privateName(html$, "_get_opener"),
    $opener: dartx.opener = Symbol("dartx.opener"),
    $outerHeight: dartx.outerHeight = Symbol("dartx.outerHeight"),
    $outerWidth: dartx.outerWidth = Symbol("dartx.outerWidth"),
    _pageXOffset: dart.privateName(html$, "_pageXOffset"),
    _pageYOffset: dart.privateName(html$, "_pageYOffset"),
    _get_parent: dart.privateName(html$, "_get_parent"),
    $screenLeft: dartx.screenLeft = Symbol("dartx.screenLeft"),
    $screenTop: dartx.screenTop = Symbol("dartx.screenTop"),
    $screenX: dartx.screenX = Symbol("dartx.screenX"),
    $screenY: dartx.screenY = Symbol("dartx.screenY"),
    $scrollbars: dartx.scrollbars = Symbol("dartx.scrollbars"),
    _get_self: dart.privateName(html$, "_get_self"),
    $sessionStorage: dartx.sessionStorage = Symbol("dartx.sessionStorage"),
    $speechSynthesis: dartx.speechSynthesis = Symbol("dartx.speechSynthesis"),
    $statusbar: dartx.statusbar = Symbol("dartx.statusbar"),
    $styleMedia: dartx.styleMedia = Symbol("dartx.styleMedia"),
    $toolbar: dartx.toolbar = Symbol("dartx.toolbar"),
    _get_top: dart.privateName(html$, "_get_top"),
    $visualViewport: dartx.visualViewport = Symbol("dartx.visualViewport"),
    __getter___1: dart.privateName(html$, "__getter___1"),
    __getter___2: dart.privateName(html$, "__getter___2"),
    $alert: dartx.alert = Symbol("dartx.alert"),
    $cancelIdleCallback: dartx.cancelIdleCallback = Symbol("dartx.cancelIdleCallback"),
    $confirm: dartx.confirm = Symbol("dartx.confirm"),
    $find: dartx.find = Symbol("dartx.find"),
    $getComputedStyleMap: dartx.getComputedStyleMap = Symbol("dartx.getComputedStyleMap"),
    $getMatchedCssRules: dartx.getMatchedCssRules = Symbol("dartx.getMatchedCssRules"),
    $matchMedia: dartx.matchMedia = Symbol("dartx.matchMedia"),
    $moveBy: dartx.moveBy = Symbol("dartx.moveBy"),
    $print: dartx.print = Symbol("dartx.print"),
    _requestIdleCallback_1: dart.privateName(html$, "_requestIdleCallback_1"),
    _requestIdleCallback_2: dart.privateName(html$, "_requestIdleCallback_2"),
    $requestIdleCallback: dartx.requestIdleCallback = Symbol("dartx.requestIdleCallback"),
    $resizeBy: dartx.resizeBy = Symbol("dartx.resizeBy"),
    $resizeTo: dartx.resizeTo = Symbol("dartx.resizeTo"),
    _scroll_4: dart.privateName(html$, "_scroll_4"),
    _scroll_5: dart.privateName(html$, "_scroll_5"),
    _scrollBy_4: dart.privateName(html$, "_scrollBy_4"),
    _scrollBy_5: dart.privateName(html$, "_scrollBy_5"),
    _scrollTo_4: dart.privateName(html$, "_scrollTo_4"),
    _scrollTo_5: dart.privateName(html$, "_scrollTo_5"),
    __requestFileSystem: dart.privateName(html$, "__requestFileSystem"),
    _resolveLocalFileSystemUrl: dart.privateName(html$, "_resolveLocalFileSystemUrl"),
    $resolveLocalFileSystemUrl: dartx.resolveLocalFileSystemUrl = Symbol("dartx.resolveLocalFileSystemUrl"),
    $onContentLoaded: dartx.onContentLoaded = Symbol("dartx.onContentLoaded"),
    $onDeviceMotion: dartx.onDeviceMotion = Symbol("dartx.onDeviceMotion"),
    $onDeviceOrientation: dartx.onDeviceOrientation = Symbol("dartx.onDeviceOrientation"),
    $onPageHide: dartx.onPageHide = Symbol("dartx.onPageHide"),
    $onPageShow: dartx.onPageShow = Symbol("dartx.onPageShow"),
    $onAnimationEnd: dartx.onAnimationEnd = Symbol("dartx.onAnimationEnd"),
    $onAnimationIteration: dartx.onAnimationIteration = Symbol("dartx.onAnimationIteration"),
    $onAnimationStart: dartx.onAnimationStart = Symbol("dartx.onAnimationStart"),
    $onBeforeUnload: dartx.onBeforeUnload = Symbol("dartx.onBeforeUnload"),
    $pageXOffset: dartx.pageXOffset = Symbol("dartx.pageXOffset"),
    $pageYOffset: dartx.pageYOffset = Symbol("dartx.pageYOffset"),
    $scrollX: dartx.scrollX = Symbol("dartx.scrollX"),
    $scrollY: dartx.scrollY = Symbol("dartx.scrollY"),
    $focused: dartx.focused = Symbol("dartx.focused"),
    $navigate: dartx.navigate = Symbol("dartx.navigate"),
    $createExpression: dartx.createExpression = Symbol("dartx.createExpression"),
    $createNSResolver: dartx.createNSResolver = Symbol("dartx.createNSResolver"),
    $evaluate: dartx.evaluate = Symbol("dartx.evaluate"),
    $lookupNamespaceUri: dartx.lookupNamespaceUri = Symbol("dartx.lookupNamespaceUri"),
    $booleanValue: dartx.booleanValue = Symbol("dartx.booleanValue"),
    $invalidIteratorState: dartx.invalidIteratorState = Symbol("dartx.invalidIteratorState"),
    $numberValue: dartx.numberValue = Symbol("dartx.numberValue"),
    $resultType: dartx.resultType = Symbol("dartx.resultType"),
    $singleNodeValue: dartx.singleNodeValue = Symbol("dartx.singleNodeValue"),
    $snapshotLength: dartx.snapshotLength = Symbol("dartx.snapshotLength"),
    $stringValue: dartx.stringValue = Symbol("dartx.stringValue"),
    $iterateNext: dartx.iterateNext = Symbol("dartx.iterateNext"),
    $snapshotItem: dartx.snapshotItem = Symbol("dartx.snapshotItem"),
    $serializeToString: dartx.serializeToString = Symbol("dartx.serializeToString"),
    $clearParameters: dartx.clearParameters = Symbol("dartx.clearParameters"),
    $getParameter: dartx.getParameter = Symbol("dartx.getParameter"),
    $importStylesheet: dartx.importStylesheet = Symbol("dartx.importStylesheet"),
    $removeParameter: dartx.removeParameter = Symbol("dartx.removeParameter"),
    $setParameter: dartx.setParameter = Symbol("dartx.setParameter"),
    $transformToDocument: dartx.transformToDocument = Symbol("dartx.transformToDocument"),
    $transformToFragment: dartx.transformToFragment = Symbol("dartx.transformToFragment"),
    $getBudget: dartx.getBudget = Symbol("dartx.getBudget"),
    $getCost: dartx.getCost = Symbol("dartx.getCost"),
    $reserve: dartx.reserve = Symbol("dartx.reserve"),
    $read: dartx.read = Symbol("dartx.read"),
    $readText: dartx.readText = Symbol("dartx.readText"),
    $writeText: dartx.writeText = Symbol("dartx.writeText"),
    $getNamedItem: dartx.getNamedItem = Symbol("dartx.getNamedItem"),
    $getNamedItemNS: dartx.getNamedItemNS = Symbol("dartx.getNamedItemNS"),
    $removeNamedItem: dartx.removeNamedItem = Symbol("dartx.removeNamedItem"),
    $removeNamedItemNS: dartx.removeNamedItemNS = Symbol("dartx.removeNamedItemNS"),
    $setNamedItem: dartx.setNamedItem = Symbol("dartx.setNamedItem"),
    $setNamedItemNS: dartx.setNamedItemNS = Symbol("dartx.setNamedItemNS"),
    $cache: dartx.cache = Symbol("dartx.cache"),
    $redirect: dartx.redirect = Symbol("dartx.redirect"),
    _matches: dart.privateName(html$, "_matches"),
    _namespace: dart.privateName(html$, "_namespace"),
    _attr: dart.privateName(html$, "_attr"),
    _strip: dart.privateName(html$, "_strip"),
    _toHyphenedName: dart.privateName(html$, "_toHyphenedName"),
    _toCamelCase: dart.privateName(html$, "_toCamelCase"),
    _addOrSubtractToBoxModel: dart.privateName(html$, "_addOrSubtractToBoxModel"),
    _elementList: dart.privateName(html$, "_elementList"),
    _sets: dart.privateName(html$, "_sets"),
    _validateToken: dart.privateName(html_common, "_validateToken"),
    _unit: dart.privateName(html$, "_unit"),
    _eventType: dart.privateName(html$, "EventStreamProvider._eventType"),
    _eventType$1: dart.privateName(html$, "_eventType"),
    _target$2: dart.privateName(html$, "_target"),
    _useCapture: dart.privateName(html$, "_useCapture"),
    _targetList: dart.privateName(html$, "_targetList"),
    _pauseCount$1: dart.privateName(html$, "_pauseCount"),
    _onData$3: dart.privateName(html$, "_onData"),
    _tryResume: dart.privateName(html$, "_tryResume"),
    _canceled: dart.privateName(html$, "_canceled"),
    _unlisten: dart.privateName(html$, "_unlisten"),
    _type$4: dart.privateName(html$, "_type"),
    _streamController: dart.privateName(html$, "_streamController"),
    _parent$2: dart.privateName(html$, "_parent"),
    _controller$2: dart.privateName(html$, "_controller"),
    _subscriptions: dart.privateName(html$, "_subscriptions"),
    _eventTypeGetter: dart.privateName(html$, "_CustomEventStreamProvider._eventTypeGetter"),
    _eventTypeGetter$1: dart.privateName(html$, "_eventTypeGetter"),
    _keyDownList: dart.privateName(html$, "_keyDownList"),
    _stream$3: dart.privateName(html$, "_stream"),
    _capsLockOn: dart.privateName(html$, "_capsLockOn"),
    _shadowCharCode: dart.privateName(html$, "_shadowCharCode"),
    _determineKeyCodeForKeypress: dart.privateName(html$, "_determineKeyCodeForKeypress"),
    _findCharCodeKeyDown: dart.privateName(html$, "_findCharCodeKeyDown"),
    _firesKeyPressEvent: dart.privateName(html$, "_firesKeyPressEvent"),
    _normalizeKeyCodes: dart.privateName(html$, "_normalizeKeyCodes"),
    _shadowKeyCode: dart.privateName(html$, "_shadowKeyCode"),
    _shadowKeyIdentifier: dart.privateName(html$, "_shadowKeyIdentifier"),
    _shadowAltKey: dart.privateName(html$, "_shadowAltKey"),
    _validators: dart.privateName(html$, "_validators"),
    _templateAttrs: dart.privateName(html$, "_templateAttrs"),
    _list$19: dart.privateName(html$, "_list"),
    _iterator$2: dart.privateName(html$, "_iterator"),
    _current$5: dart.privateName(html$, "_current"),
    _array: dart.privateName(html$, "_array"),
    _isConsoleDefined: dart.privateName(html$, "_isConsoleDefined"),
    _interceptor: dart.privateName(html$, "_interceptor"),
    _constructor: dart.privateName(html$, "_constructor"),
    _nativeType: dart.privateName(html$, "_nativeType"),
    __window: dart.privateName(html$, "__window"),
    _window: dart.privateName(html$, "_window"),
    _history: dart.privateName(html$, "_history"),
    _currentTarget: dart.privateName(html$, "_currentTarget"),
    _realAltKey: dart.privateName(html$, "_realAltKey"),
    _realCharCode: dart.privateName(html$, "_realCharCode"),
    _realKeyCode: dart.privateName(html$, "_realKeyCode"),
    _keyIdentifier: dart.privateName(html$, "_keyIdentifier"),
    wrapped: dart.privateName(html$, "_WrappedEvent.wrapped"),
    _hiddenAnchor: dart.privateName(html$, "_hiddenAnchor"),
    _loc: dart.privateName(html$, "_loc"),
    _removeNode: dart.privateName(html$, "_removeNode"),
    _sanitizeElement: dart.privateName(html$, "_sanitizeElement"),
    _sanitizeUntrustedElement: dart.privateName(html$, "_sanitizeUntrustedElement"),
    alpha: dart.privateName(html_common, "ContextAttributes.alpha"),
    antialias: dart.privateName(html_common, "ContextAttributes.antialias"),
    depth: dart.privateName(html_common, "ContextAttributes.depth"),
    premultipliedAlpha: dart.privateName(html_common, "ContextAttributes.premultipliedAlpha"),
    preserveDrawingBuffer: dart.privateName(html_common, "ContextAttributes.preserveDrawingBuffer"),
    stencil: dart.privateName(html_common, "ContextAttributes.stencil"),
    failIfMajorPerformanceCaveat: dart.privateName(html_common, "ContextAttributes.failIfMajorPerformanceCaveat"),
    data$2: dart.privateName(html_common, "_TypedImageData.data"),
    height$1: dart.privateName(html_common, "_TypedImageData.height"),
    width$1: dart.privateName(html_common, "_TypedImageData.width"),
    _childNodes: dart.privateName(html_common, "_childNodes"),
    _node: dart.privateName(html_common, "_node"),
    _iterable$2: dart.privateName(html_common, "_iterable"),
    _filtered: dart.privateName(html_common, "_filtered"),
    $farthestViewportElement: dartx.farthestViewportElement = Symbol("dartx.farthestViewportElement"),
    $nearestViewportElement: dartx.nearestViewportElement = Symbol("dartx.nearestViewportElement"),
    $getBBox: dartx.getBBox = Symbol("dartx.getBBox"),
    $getCtm: dartx.getCtm = Symbol("dartx.getCtm"),
    $getScreenCtm: dartx.getScreenCtm = Symbol("dartx.getScreenCtm"),
    $requiredExtensions: dartx.requiredExtensions = Symbol("dartx.requiredExtensions"),
    $systemLanguage: dartx.systemLanguage = Symbol("dartx.systemLanguage"),
    _children$1: dart.privateName(svg$, "_children"),
    _svgClassName: dart.privateName(svg$, "_svgClassName"),
    $ownerSvgElement: dartx.ownerSvgElement = Symbol("dartx.ownerSvgElement"),
    $viewportElement: dartx.viewportElement = Symbol("dartx.viewportElement"),
    $unitType: dartx.unitType = Symbol("dartx.unitType"),
    $valueAsString: dartx.valueAsString = Symbol("dartx.valueAsString"),
    $valueInSpecifiedUnits: dartx.valueInSpecifiedUnits = Symbol("dartx.valueInSpecifiedUnits"),
    $convertToSpecifiedUnits: dartx.convertToSpecifiedUnits = Symbol("dartx.convertToSpecifiedUnits"),
    $newValueSpecifiedUnits: dartx.newValueSpecifiedUnits = Symbol("dartx.newValueSpecifiedUnits"),
    $targetElement: dartx.targetElement = Symbol("dartx.targetElement"),
    $beginElement: dartx.beginElement = Symbol("dartx.beginElement"),
    $beginElementAt: dartx.beginElementAt = Symbol("dartx.beginElementAt"),
    $endElement: dartx.endElement = Symbol("dartx.endElement"),
    $endElementAt: dartx.endElementAt = Symbol("dartx.endElementAt"),
    $getCurrentTime: dartx.getCurrentTime = Symbol("dartx.getCurrentTime"),
    $getSimpleDuration: dartx.getSimpleDuration = Symbol("dartx.getSimpleDuration"),
    $getStartTime: dartx.getStartTime = Symbol("dartx.getStartTime"),
    $animVal: dartx.animVal = Symbol("dartx.animVal"),
    $baseVal: dartx.baseVal = Symbol("dartx.baseVal"),
    $cx: dartx.cx = Symbol("dartx.cx"),
    $cy: dartx.cy = Symbol("dartx.cy"),
    $r: dartx.r = Symbol("dartx.r"),
    $pathLength: dartx.pathLength = Symbol("dartx.pathLength"),
    $getPointAtLength: dartx.getPointAtLength = Symbol("dartx.getPointAtLength"),
    $getTotalLength: dartx.getTotalLength = Symbol("dartx.getTotalLength"),
    $isPointInFill: dartx.isPointInFill = Symbol("dartx.isPointInFill"),
    $clipPathUnits: dartx.clipPathUnits = Symbol("dartx.clipPathUnits"),
    $rx: dartx.rx = Symbol("dartx.rx"),
    $ry: dartx.ry = Symbol("dartx.ry"),
    $in1: dartx.in1 = Symbol("dartx.in1"),
    $in2: dartx.in2 = Symbol("dartx.in2"),
    $k1: dartx.k1 = Symbol("dartx.k1"),
    $k2: dartx.k2 = Symbol("dartx.k2"),
    $k3: dartx.k3 = Symbol("dartx.k3"),
    $k4: dartx.k4 = Symbol("dartx.k4"),
    $operator: dartx.operator = Symbol("dartx.operator"),
    $bias: dartx.bias = Symbol("dartx.bias"),
    $divisor: dartx.divisor = Symbol("dartx.divisor"),
    $edgeMode: dartx.edgeMode = Symbol("dartx.edgeMode"),
    $kernelMatrix: dartx.kernelMatrix = Symbol("dartx.kernelMatrix"),
    $kernelUnitLengthX: dartx.kernelUnitLengthX = Symbol("dartx.kernelUnitLengthX"),
    $kernelUnitLengthY: dartx.kernelUnitLengthY = Symbol("dartx.kernelUnitLengthY"),
    $orderX: dartx.orderX = Symbol("dartx.orderX"),
    $orderY: dartx.orderY = Symbol("dartx.orderY"),
    $preserveAlpha: dartx.preserveAlpha = Symbol("dartx.preserveAlpha"),
    $targetX: dartx.targetX = Symbol("dartx.targetX"),
    $targetY: dartx.targetY = Symbol("dartx.targetY"),
    $diffuseConstant: dartx.diffuseConstant = Symbol("dartx.diffuseConstant"),
    $surfaceScale: dartx.surfaceScale = Symbol("dartx.surfaceScale"),
    $xChannelSelector: dartx.xChannelSelector = Symbol("dartx.xChannelSelector"),
    $yChannelSelector: dartx.yChannelSelector = Symbol("dartx.yChannelSelector"),
    $azimuth: dartx.azimuth = Symbol("dartx.azimuth"),
    $elevation: dartx.elevation = Symbol("dartx.elevation"),
    $stdDeviationX: dartx.stdDeviationX = Symbol("dartx.stdDeviationX"),
    $stdDeviationY: dartx.stdDeviationY = Symbol("dartx.stdDeviationY"),
    $setStdDeviation: dartx.setStdDeviation = Symbol("dartx.setStdDeviation"),
    $preserveAspectRatio: dartx.preserveAspectRatio = Symbol("dartx.preserveAspectRatio"),
    $dx: dartx.dx = Symbol("dartx.dx"),
    $dy: dartx.dy = Symbol("dartx.dy"),
    $specularConstant: dartx.specularConstant = Symbol("dartx.specularConstant"),
    $specularExponent: dartx.specularExponent = Symbol("dartx.specularExponent"),
    $limitingConeAngle: dartx.limitingConeAngle = Symbol("dartx.limitingConeAngle"),
    $pointsAtX: dartx.pointsAtX = Symbol("dartx.pointsAtX"),
    $pointsAtY: dartx.pointsAtY = Symbol("dartx.pointsAtY"),
    $pointsAtZ: dartx.pointsAtZ = Symbol("dartx.pointsAtZ"),
    $baseFrequencyX: dartx.baseFrequencyX = Symbol("dartx.baseFrequencyX"),
    $baseFrequencyY: dartx.baseFrequencyY = Symbol("dartx.baseFrequencyY"),
    $numOctaves: dartx.numOctaves = Symbol("dartx.numOctaves"),
    $seed: dartx.seed = Symbol("dartx.seed"),
    $stitchTiles: dartx.stitchTiles = Symbol("dartx.stitchTiles"),
    $filterUnits: dartx.filterUnits = Symbol("dartx.filterUnits"),
    $primitiveUnits: dartx.primitiveUnits = Symbol("dartx.primitiveUnits"),
    $viewBox: dartx.viewBox = Symbol("dartx.viewBox"),
    $numberOfItems: dartx.numberOfItems = Symbol("dartx.numberOfItems"),
    __setter__$1: dart.privateName(svg$, "__setter__"),
    $appendItem: dartx.appendItem = Symbol("dartx.appendItem"),
    $getItem: dartx.getItem = Symbol("dartx.getItem"),
    $initialize: dartx.initialize = Symbol("dartx.initialize"),
    $insertItemBefore: dartx.insertItemBefore = Symbol("dartx.insertItemBefore"),
    $removeItem: dartx.removeItem = Symbol("dartx.removeItem"),
    $replaceItem: dartx.replaceItem = Symbol("dartx.replaceItem"),
    $x1: dartx.x1 = Symbol("dartx.x1"),
    $x2: dartx.x2 = Symbol("dartx.x2"),
    $y1: dartx.y1 = Symbol("dartx.y1"),
    $y2: dartx.y2 = Symbol("dartx.y2"),
    $gradientTransform: dartx.gradientTransform = Symbol("dartx.gradientTransform"),
    $gradientUnits: dartx.gradientUnits = Symbol("dartx.gradientUnits"),
    $spreadMethod: dartx.spreadMethod = Symbol("dartx.spreadMethod"),
    $markerHeight: dartx.markerHeight = Symbol("dartx.markerHeight"),
    $markerUnits: dartx.markerUnits = Symbol("dartx.markerUnits"),
    $markerWidth: dartx.markerWidth = Symbol("dartx.markerWidth"),
    $orientAngle: dartx.orientAngle = Symbol("dartx.orientAngle"),
    $orientType: dartx.orientType = Symbol("dartx.orientType"),
    $refX: dartx.refX = Symbol("dartx.refX"),
    $refY: dartx.refY = Symbol("dartx.refY"),
    $setOrientToAngle: dartx.setOrientToAngle = Symbol("dartx.setOrientToAngle"),
    $setOrientToAuto: dartx.setOrientToAuto = Symbol("dartx.setOrientToAuto"),
    $maskContentUnits: dartx.maskContentUnits = Symbol("dartx.maskContentUnits"),
    $maskUnits: dartx.maskUnits = Symbol("dartx.maskUnits"),
    $scaleNonUniform: dartx.scaleNonUniform = Symbol("dartx.scaleNonUniform"),
    $patternContentUnits: dartx.patternContentUnits = Symbol("dartx.patternContentUnits"),
    $patternTransform: dartx.patternTransform = Symbol("dartx.patternTransform"),
    $patternUnits: dartx.patternUnits = Symbol("dartx.patternUnits"),
    $animatedPoints: dartx.animatedPoints = Symbol("dartx.animatedPoints"),
    $points: dartx.points = Symbol("dartx.points"),
    $meetOrSlice: dartx.meetOrSlice = Symbol("dartx.meetOrSlice"),
    $fr: dartx.fr = Symbol("dartx.fr"),
    $fx: dartx.fx = Symbol("dartx.fx"),
    $fy: dartx.fy = Symbol("dartx.fy"),
    $gradientOffset: dartx.gradientOffset = Symbol("dartx.gradientOffset"),
    _element$1: dart.privateName(svg$, "_element"),
    $currentScale: dartx.currentScale = Symbol("dartx.currentScale"),
    $currentTranslate: dartx.currentTranslate = Symbol("dartx.currentTranslate"),
    $animationsPaused: dartx.animationsPaused = Symbol("dartx.animationsPaused"),
    $checkEnclosure: dartx.checkEnclosure = Symbol("dartx.checkEnclosure"),
    $checkIntersection: dartx.checkIntersection = Symbol("dartx.checkIntersection"),
    $createSvgAngle: dartx.createSvgAngle = Symbol("dartx.createSvgAngle"),
    $createSvgLength: dartx.createSvgLength = Symbol("dartx.createSvgLength"),
    $createSvgMatrix: dartx.createSvgMatrix = Symbol("dartx.createSvgMatrix"),
    $createSvgNumber: dartx.createSvgNumber = Symbol("dartx.createSvgNumber"),
    $createSvgPoint: dartx.createSvgPoint = Symbol("dartx.createSvgPoint"),
    $createSvgRect: dartx.createSvgRect = Symbol("dartx.createSvgRect"),
    $createSvgTransform: dartx.createSvgTransform = Symbol("dartx.createSvgTransform"),
    $createSvgTransformFromMatrix: dartx.createSvgTransformFromMatrix = Symbol("dartx.createSvgTransformFromMatrix"),
    $deselectAll: dartx.deselectAll = Symbol("dartx.deselectAll"),
    $forceRedraw: dartx.forceRedraw = Symbol("dartx.forceRedraw"),
    $getEnclosureList: dartx.getEnclosureList = Symbol("dartx.getEnclosureList"),
    $getIntersectionList: dartx.getIntersectionList = Symbol("dartx.getIntersectionList"),
    $pauseAnimations: dartx.pauseAnimations = Symbol("dartx.pauseAnimations"),
    $setCurrentTime: dartx.setCurrentTime = Symbol("dartx.setCurrentTime"),
    $suspendRedraw: dartx.suspendRedraw = Symbol("dartx.suspendRedraw"),
    $unpauseAnimations: dartx.unpauseAnimations = Symbol("dartx.unpauseAnimations"),
    $unsuspendRedraw: dartx.unsuspendRedraw = Symbol("dartx.unsuspendRedraw"),
    $unsuspendRedrawAll: dartx.unsuspendRedrawAll = Symbol("dartx.unsuspendRedrawAll"),
    $zoomAndPan: dartx.zoomAndPan = Symbol("dartx.zoomAndPan"),
    $lengthAdjust: dartx.lengthAdjust = Symbol("dartx.lengthAdjust"),
    $getCharNumAtPosition: dartx.getCharNumAtPosition = Symbol("dartx.getCharNumAtPosition"),
    $getComputedTextLength: dartx.getComputedTextLength = Symbol("dartx.getComputedTextLength"),
    $getEndPositionOfChar: dartx.getEndPositionOfChar = Symbol("dartx.getEndPositionOfChar"),
    $getExtentOfChar: dartx.getExtentOfChar = Symbol("dartx.getExtentOfChar"),
    $getNumberOfChars: dartx.getNumberOfChars = Symbol("dartx.getNumberOfChars"),
    $getRotationOfChar: dartx.getRotationOfChar = Symbol("dartx.getRotationOfChar"),
    $getStartPositionOfChar: dartx.getStartPositionOfChar = Symbol("dartx.getStartPositionOfChar"),
    $getSubStringLength: dartx.getSubStringLength = Symbol("dartx.getSubStringLength"),
    $selectSubString: dartx.selectSubString = Symbol("dartx.selectSubString"),
    $spacing: dartx.spacing = Symbol("dartx.spacing"),
    $setMatrix: dartx.setMatrix = Symbol("dartx.setMatrix"),
    $setRotate: dartx.setRotate = Symbol("dartx.setRotate"),
    $setScale: dartx.setScale = Symbol("dartx.setScale"),
    $setSkewX: dartx.setSkewX = Symbol("dartx.setSkewX"),
    $setSkewY: dartx.setSkewY = Symbol("dartx.setSkewY"),
    $setTranslate: dartx.setTranslate = Symbol("dartx.setTranslate"),
    $consolidate: dartx.consolidate = Symbol("dartx.consolidate"),
    $fftSize: dartx.fftSize = Symbol("dartx.fftSize"),
    $frequencyBinCount: dartx.frequencyBinCount = Symbol("dartx.frequencyBinCount"),
    $maxDecibels: dartx.maxDecibels = Symbol("dartx.maxDecibels"),
    $minDecibels: dartx.minDecibels = Symbol("dartx.minDecibels"),
    $smoothingTimeConstant: dartx.smoothingTimeConstant = Symbol("dartx.smoothingTimeConstant"),
    $getByteFrequencyData: dartx.getByteFrequencyData = Symbol("dartx.getByteFrequencyData"),
    $getByteTimeDomainData: dartx.getByteTimeDomainData = Symbol("dartx.getByteTimeDomainData"),
    $getFloatFrequencyData: dartx.getFloatFrequencyData = Symbol("dartx.getFloatFrequencyData"),
    $getFloatTimeDomainData: dartx.getFloatTimeDomainData = Symbol("dartx.getFloatTimeDomainData"),
    $channelCount: dartx.channelCount = Symbol("dartx.channelCount"),
    $channelCountMode: dartx.channelCountMode = Symbol("dartx.channelCountMode"),
    $channelInterpretation: dartx.channelInterpretation = Symbol("dartx.channelInterpretation"),
    $context: dartx.context = Symbol("dartx.context"),
    $numberOfInputs: dartx.numberOfInputs = Symbol("dartx.numberOfInputs"),
    $numberOfOutputs: dartx.numberOfOutputs = Symbol("dartx.numberOfOutputs"),
    _connect: dart.privateName(web_audio, "_connect"),
    $connectNode: dartx.connectNode = Symbol("dartx.connectNode"),
    $connectParam: dartx.connectParam = Symbol("dartx.connectParam"),
    $numberOfChannels: dartx.numberOfChannels = Symbol("dartx.numberOfChannels"),
    $sampleRate: dartx.sampleRate = Symbol("dartx.sampleRate"),
    $copyFromChannel: dartx.copyFromChannel = Symbol("dartx.copyFromChannel"),
    $copyToChannel: dartx.copyToChannel = Symbol("dartx.copyToChannel"),
    $getChannelData: dartx.getChannelData = Symbol("dartx.getChannelData")
  };
  var S$4 = {
    $detune: dartx.detune = Symbol("dartx.detune"),
    $loopEnd: dartx.loopEnd = Symbol("dartx.loopEnd"),
    $loopStart: dartx.loopStart = Symbol("dartx.loopStart"),
    $start2: dartx.start2 = Symbol("dartx.start2"),
    $baseLatency: dartx.baseLatency = Symbol("dartx.baseLatency"),
    _getOutputTimestamp_1: dart.privateName(web_audio, "_getOutputTimestamp_1"),
    $getOutputTimestamp: dartx.getOutputTimestamp = Symbol("dartx.getOutputTimestamp"),
    $suspend: dartx.suspend = Symbol("dartx.suspend"),
    $createGain: dartx.createGain = Symbol("dartx.createGain"),
    $createScriptProcessor: dartx.createScriptProcessor = Symbol("dartx.createScriptProcessor"),
    $decodeAudioData: dartx.decodeAudioData = Symbol("dartx.decodeAudioData"),
    $destination: dartx.destination = Symbol("dartx.destination"),
    $listener: dartx.listener = Symbol("dartx.listener"),
    $createAnalyser: dartx.createAnalyser = Symbol("dartx.createAnalyser"),
    $createBiquadFilter: dartx.createBiquadFilter = Symbol("dartx.createBiquadFilter"),
    $createBuffer: dartx.createBuffer = Symbol("dartx.createBuffer"),
    $createBufferSource: dartx.createBufferSource = Symbol("dartx.createBufferSource"),
    $createChannelMerger: dartx.createChannelMerger = Symbol("dartx.createChannelMerger"),
    $createChannelSplitter: dartx.createChannelSplitter = Symbol("dartx.createChannelSplitter"),
    $createConstantSource: dartx.createConstantSource = Symbol("dartx.createConstantSource"),
    $createConvolver: dartx.createConvolver = Symbol("dartx.createConvolver"),
    $createDelay: dartx.createDelay = Symbol("dartx.createDelay"),
    $createDynamicsCompressor: dartx.createDynamicsCompressor = Symbol("dartx.createDynamicsCompressor"),
    $createIirFilter: dartx.createIirFilter = Symbol("dartx.createIirFilter"),
    $createMediaElementSource: dartx.createMediaElementSource = Symbol("dartx.createMediaElementSource"),
    $createMediaStreamDestination: dartx.createMediaStreamDestination = Symbol("dartx.createMediaStreamDestination"),
    $createMediaStreamSource: dartx.createMediaStreamSource = Symbol("dartx.createMediaStreamSource"),
    $createOscillator: dartx.createOscillator = Symbol("dartx.createOscillator"),
    $createPanner: dartx.createPanner = Symbol("dartx.createPanner"),
    _createPeriodicWave_1: dart.privateName(web_audio, "_createPeriodicWave_1"),
    _createPeriodicWave_2: dart.privateName(web_audio, "_createPeriodicWave_2"),
    $createPeriodicWave: dartx.createPeriodicWave = Symbol("dartx.createPeriodicWave"),
    $createStereoPanner: dartx.createStereoPanner = Symbol("dartx.createStereoPanner"),
    $createWaveShaper: dartx.createWaveShaper = Symbol("dartx.createWaveShaper"),
    $maxChannelCount: dartx.maxChannelCount = Symbol("dartx.maxChannelCount"),
    $forwardX: dartx.forwardX = Symbol("dartx.forwardX"),
    $forwardY: dartx.forwardY = Symbol("dartx.forwardY"),
    $forwardZ: dartx.forwardZ = Symbol("dartx.forwardZ"),
    $positionZ: dartx.positionZ = Symbol("dartx.positionZ"),
    $upX: dartx.upX = Symbol("dartx.upX"),
    $upY: dartx.upY = Symbol("dartx.upY"),
    $upZ: dartx.upZ = Symbol("dartx.upZ"),
    $setOrientation: dartx.setOrientation = Symbol("dartx.setOrientation"),
    $maxValue: dartx.maxValue = Symbol("dartx.maxValue"),
    $minValue: dartx.minValue = Symbol("dartx.minValue"),
    $cancelAndHoldAtTime: dartx.cancelAndHoldAtTime = Symbol("dartx.cancelAndHoldAtTime"),
    $cancelScheduledValues: dartx.cancelScheduledValues = Symbol("dartx.cancelScheduledValues"),
    $exponentialRampToValueAtTime: dartx.exponentialRampToValueAtTime = Symbol("dartx.exponentialRampToValueAtTime"),
    $linearRampToValueAtTime: dartx.linearRampToValueAtTime = Symbol("dartx.linearRampToValueAtTime"),
    $setTargetAtTime: dartx.setTargetAtTime = Symbol("dartx.setTargetAtTime"),
    $setValueAtTime: dartx.setValueAtTime = Symbol("dartx.setValueAtTime"),
    $setValueCurveAtTime: dartx.setValueCurveAtTime = Symbol("dartx.setValueCurveAtTime"),
    _getItem$1: dart.privateName(web_audio, "_getItem"),
    $inputBuffer: dartx.inputBuffer = Symbol("dartx.inputBuffer"),
    $outputBuffer: dartx.outputBuffer = Symbol("dartx.outputBuffer"),
    $playbackTime: dartx.playbackTime = Symbol("dartx.playbackTime"),
    __getter__$1: dart.privateName(web_audio, "__getter__"),
    $registerProcessor: dartx.registerProcessor = Symbol("dartx.registerProcessor"),
    $parameters: dartx.parameters = Symbol("dartx.parameters"),
    $Q: dartx.Q = Symbol("dartx.Q"),
    $frequency: dartx.frequency = Symbol("dartx.frequency"),
    $gain: dartx.gain = Symbol("dartx.gain"),
    $getFrequencyResponse: dartx.getFrequencyResponse = Symbol("dartx.getFrequencyResponse"),
    $normalize: dartx.normalize = Symbol("dartx.normalize"),
    $delayTime: dartx.delayTime = Symbol("dartx.delayTime"),
    $attack: dartx.attack = Symbol("dartx.attack"),
    $knee: dartx.knee = Symbol("dartx.knee"),
    $ratio: dartx.ratio = Symbol("dartx.ratio"),
    $reduction: dartx.reduction = Symbol("dartx.reduction"),
    $release: dartx.release = Symbol("dartx.release"),
    $threshold: dartx.threshold = Symbol("dartx.threshold"),
    $mediaElement: dartx.mediaElement = Symbol("dartx.mediaElement"),
    $mediaStream: dartx.mediaStream = Symbol("dartx.mediaStream"),
    $renderedBuffer: dartx.renderedBuffer = Symbol("dartx.renderedBuffer"),
    $startRendering: dartx.startRendering = Symbol("dartx.startRendering"),
    $suspendFor: dartx.suspendFor = Symbol("dartx.suspendFor"),
    $setPeriodicWave: dartx.setPeriodicWave = Symbol("dartx.setPeriodicWave"),
    $coneInnerAngle: dartx.coneInnerAngle = Symbol("dartx.coneInnerAngle"),
    $coneOuterAngle: dartx.coneOuterAngle = Symbol("dartx.coneOuterAngle"),
    $coneOuterGain: dartx.coneOuterGain = Symbol("dartx.coneOuterGain"),
    $distanceModel: dartx.distanceModel = Symbol("dartx.distanceModel"),
    $maxDistance: dartx.maxDistance = Symbol("dartx.maxDistance"),
    $orientationX: dartx.orientationX = Symbol("dartx.orientationX"),
    $orientationY: dartx.orientationY = Symbol("dartx.orientationY"),
    $orientationZ: dartx.orientationZ = Symbol("dartx.orientationZ"),
    $panningModel: dartx.panningModel = Symbol("dartx.panningModel"),
    $refDistance: dartx.refDistance = Symbol("dartx.refDistance"),
    $rolloffFactor: dartx.rolloffFactor = Symbol("dartx.rolloffFactor"),
    $bufferSize: dartx.bufferSize = Symbol("dartx.bufferSize"),
    $setEventListener: dartx.setEventListener = Symbol("dartx.setEventListener"),
    $onAudioProcess: dartx.onAudioProcess = Symbol("dartx.onAudioProcess"),
    $pan: dartx.pan = Symbol("dartx.pan"),
    $curve: dartx.curve = Symbol("dartx.curve"),
    $oversample: dartx.oversample = Symbol("dartx.oversample"),
    $drawArraysInstancedAngle: dartx.drawArraysInstancedAngle = Symbol("dartx.drawArraysInstancedAngle"),
    $drawElementsInstancedAngle: dartx.drawElementsInstancedAngle = Symbol("dartx.drawElementsInstancedAngle"),
    $vertexAttribDivisorAngle: dartx.vertexAttribDivisorAngle = Symbol("dartx.vertexAttribDivisorAngle"),
    $offscreenCanvas: dartx.offscreenCanvas = Symbol("dartx.offscreenCanvas"),
    $statusMessage: dartx.statusMessage = Symbol("dartx.statusMessage"),
    $getTranslatedShaderSource: dartx.getTranslatedShaderSource = Symbol("dartx.getTranslatedShaderSource"),
    $drawBuffersWebgl: dartx.drawBuffersWebgl = Symbol("dartx.drawBuffersWebgl"),
    $beginQueryExt: dartx.beginQueryExt = Symbol("dartx.beginQueryExt"),
    $createQueryExt: dartx.createQueryExt = Symbol("dartx.createQueryExt"),
    $deleteQueryExt: dartx.deleteQueryExt = Symbol("dartx.deleteQueryExt"),
    $endQueryExt: dartx.endQueryExt = Symbol("dartx.endQueryExt"),
    $getQueryExt: dartx.getQueryExt = Symbol("dartx.getQueryExt"),
    $getQueryObjectExt: dartx.getQueryObjectExt = Symbol("dartx.getQueryObjectExt"),
    $isQueryExt: dartx.isQueryExt = Symbol("dartx.isQueryExt"),
    $queryCounterExt: dartx.queryCounterExt = Symbol("dartx.queryCounterExt"),
    $getBufferSubDataAsync: dartx.getBufferSubDataAsync = Symbol("dartx.getBufferSubDataAsync"),
    $loseContext: dartx.loseContext = Symbol("dartx.loseContext"),
    $restoreContext: dartx.restoreContext = Symbol("dartx.restoreContext"),
    $bindVertexArray: dartx.bindVertexArray = Symbol("dartx.bindVertexArray"),
    $createVertexArray: dartx.createVertexArray = Symbol("dartx.createVertexArray"),
    $deleteVertexArray: dartx.deleteVertexArray = Symbol("dartx.deleteVertexArray"),
    $isVertexArray: dartx.isVertexArray = Symbol("dartx.isVertexArray"),
    $drawingBufferHeight: dartx.drawingBufferHeight = Symbol("dartx.drawingBufferHeight"),
    $drawingBufferWidth: dartx.drawingBufferWidth = Symbol("dartx.drawingBufferWidth"),
    $activeTexture: dartx.activeTexture = Symbol("dartx.activeTexture"),
    $attachShader: dartx.attachShader = Symbol("dartx.attachShader"),
    $bindAttribLocation: dartx.bindAttribLocation = Symbol("dartx.bindAttribLocation"),
    $bindBuffer: dartx.bindBuffer = Symbol("dartx.bindBuffer"),
    $bindFramebuffer: dartx.bindFramebuffer = Symbol("dartx.bindFramebuffer"),
    $bindRenderbuffer: dartx.bindRenderbuffer = Symbol("dartx.bindRenderbuffer"),
    $bindTexture: dartx.bindTexture = Symbol("dartx.bindTexture"),
    $blendColor: dartx.blendColor = Symbol("dartx.blendColor"),
    $blendEquation: dartx.blendEquation = Symbol("dartx.blendEquation"),
    $blendEquationSeparate: dartx.blendEquationSeparate = Symbol("dartx.blendEquationSeparate"),
    $blendFunc: dartx.blendFunc = Symbol("dartx.blendFunc"),
    $blendFuncSeparate: dartx.blendFuncSeparate = Symbol("dartx.blendFuncSeparate"),
    $bufferData: dartx.bufferData = Symbol("dartx.bufferData"),
    $bufferSubData: dartx.bufferSubData = Symbol("dartx.bufferSubData"),
    $checkFramebufferStatus: dartx.checkFramebufferStatus = Symbol("dartx.checkFramebufferStatus"),
    $clearColor: dartx.clearColor = Symbol("dartx.clearColor"),
    $clearDepth: dartx.clearDepth = Symbol("dartx.clearDepth"),
    $clearStencil: dartx.clearStencil = Symbol("dartx.clearStencil"),
    $colorMask: dartx.colorMask = Symbol("dartx.colorMask"),
    $compileShader: dartx.compileShader = Symbol("dartx.compileShader"),
    $compressedTexImage2D: dartx.compressedTexImage2D = Symbol("dartx.compressedTexImage2D"),
    $compressedTexSubImage2D: dartx.compressedTexSubImage2D = Symbol("dartx.compressedTexSubImage2D"),
    $copyTexImage2D: dartx.copyTexImage2D = Symbol("dartx.copyTexImage2D"),
    $copyTexSubImage2D: dartx.copyTexSubImage2D = Symbol("dartx.copyTexSubImage2D"),
    $createFramebuffer: dartx.createFramebuffer = Symbol("dartx.createFramebuffer"),
    $createProgram: dartx.createProgram = Symbol("dartx.createProgram"),
    $createRenderbuffer: dartx.createRenderbuffer = Symbol("dartx.createRenderbuffer"),
    $createShader: dartx.createShader = Symbol("dartx.createShader"),
    $createTexture: dartx.createTexture = Symbol("dartx.createTexture"),
    $cullFace: dartx.cullFace = Symbol("dartx.cullFace"),
    $deleteBuffer: dartx.deleteBuffer = Symbol("dartx.deleteBuffer"),
    $deleteFramebuffer: dartx.deleteFramebuffer = Symbol("dartx.deleteFramebuffer"),
    $deleteProgram: dartx.deleteProgram = Symbol("dartx.deleteProgram"),
    $deleteRenderbuffer: dartx.deleteRenderbuffer = Symbol("dartx.deleteRenderbuffer"),
    $deleteShader: dartx.deleteShader = Symbol("dartx.deleteShader"),
    $deleteTexture: dartx.deleteTexture = Symbol("dartx.deleteTexture"),
    $depthFunc: dartx.depthFunc = Symbol("dartx.depthFunc"),
    $depthMask: dartx.depthMask = Symbol("dartx.depthMask"),
    $depthRange: dartx.depthRange = Symbol("dartx.depthRange"),
    $detachShader: dartx.detachShader = Symbol("dartx.detachShader"),
    $disableVertexAttribArray: dartx.disableVertexAttribArray = Symbol("dartx.disableVertexAttribArray"),
    $drawArrays: dartx.drawArrays = Symbol("dartx.drawArrays"),
    $drawElements: dartx.drawElements = Symbol("dartx.drawElements"),
    $enableVertexAttribArray: dartx.enableVertexAttribArray = Symbol("dartx.enableVertexAttribArray"),
    $flush: dartx.flush = Symbol("dartx.flush"),
    $framebufferRenderbuffer: dartx.framebufferRenderbuffer = Symbol("dartx.framebufferRenderbuffer"),
    $framebufferTexture2D: dartx.framebufferTexture2D = Symbol("dartx.framebufferTexture2D"),
    $frontFace: dartx.frontFace = Symbol("dartx.frontFace"),
    $generateMipmap: dartx.generateMipmap = Symbol("dartx.generateMipmap"),
    $getActiveAttrib: dartx.getActiveAttrib = Symbol("dartx.getActiveAttrib"),
    $getActiveUniform: dartx.getActiveUniform = Symbol("dartx.getActiveUniform"),
    $getAttachedShaders: dartx.getAttachedShaders = Symbol("dartx.getAttachedShaders"),
    $getAttribLocation: dartx.getAttribLocation = Symbol("dartx.getAttribLocation"),
    $getBufferParameter: dartx.getBufferParameter = Symbol("dartx.getBufferParameter"),
    _getContextAttributes_1$1: dart.privateName(web_gl, "_getContextAttributes_1"),
    $getError: dartx.getError = Symbol("dartx.getError"),
    $getExtension: dartx.getExtension = Symbol("dartx.getExtension"),
    $getFramebufferAttachmentParameter: dartx.getFramebufferAttachmentParameter = Symbol("dartx.getFramebufferAttachmentParameter"),
    $getProgramInfoLog: dartx.getProgramInfoLog = Symbol("dartx.getProgramInfoLog"),
    $getProgramParameter: dartx.getProgramParameter = Symbol("dartx.getProgramParameter"),
    $getRenderbufferParameter: dartx.getRenderbufferParameter = Symbol("dartx.getRenderbufferParameter"),
    $getShaderInfoLog: dartx.getShaderInfoLog = Symbol("dartx.getShaderInfoLog"),
    $getShaderParameter: dartx.getShaderParameter = Symbol("dartx.getShaderParameter"),
    $getShaderPrecisionFormat: dartx.getShaderPrecisionFormat = Symbol("dartx.getShaderPrecisionFormat"),
    $getShaderSource: dartx.getShaderSource = Symbol("dartx.getShaderSource"),
    $getSupportedExtensions: dartx.getSupportedExtensions = Symbol("dartx.getSupportedExtensions"),
    $getTexParameter: dartx.getTexParameter = Symbol("dartx.getTexParameter"),
    $getUniform: dartx.getUniform = Symbol("dartx.getUniform"),
    $getUniformLocation: dartx.getUniformLocation = Symbol("dartx.getUniformLocation"),
    $getVertexAttrib: dartx.getVertexAttrib = Symbol("dartx.getVertexAttrib"),
    $getVertexAttribOffset: dartx.getVertexAttribOffset = Symbol("dartx.getVertexAttribOffset"),
    $hint: dartx.hint = Symbol("dartx.hint"),
    $isBuffer: dartx.isBuffer = Symbol("dartx.isBuffer"),
    $isEnabled: dartx.isEnabled = Symbol("dartx.isEnabled"),
    $isFramebuffer: dartx.isFramebuffer = Symbol("dartx.isFramebuffer"),
    $isProgram: dartx.isProgram = Symbol("dartx.isProgram"),
    $isRenderbuffer: dartx.isRenderbuffer = Symbol("dartx.isRenderbuffer"),
    $isShader: dartx.isShader = Symbol("dartx.isShader"),
    $isTexture: dartx.isTexture = Symbol("dartx.isTexture"),
    $linkProgram: dartx.linkProgram = Symbol("dartx.linkProgram"),
    $pixelStorei: dartx.pixelStorei = Symbol("dartx.pixelStorei"),
    $polygonOffset: dartx.polygonOffset = Symbol("dartx.polygonOffset"),
    _readPixels: dart.privateName(web_gl, "_readPixels"),
    $renderbufferStorage: dartx.renderbufferStorage = Symbol("dartx.renderbufferStorage"),
    $sampleCoverage: dartx.sampleCoverage = Symbol("dartx.sampleCoverage"),
    $scissor: dartx.scissor = Symbol("dartx.scissor"),
    $shaderSource: dartx.shaderSource = Symbol("dartx.shaderSource"),
    $stencilFunc: dartx.stencilFunc = Symbol("dartx.stencilFunc"),
    $stencilFuncSeparate: dartx.stencilFuncSeparate = Symbol("dartx.stencilFuncSeparate"),
    $stencilMask: dartx.stencilMask = Symbol("dartx.stencilMask"),
    $stencilMaskSeparate: dartx.stencilMaskSeparate = Symbol("dartx.stencilMaskSeparate"),
    $stencilOp: dartx.stencilOp = Symbol("dartx.stencilOp"),
    $stencilOpSeparate: dartx.stencilOpSeparate = Symbol("dartx.stencilOpSeparate"),
    _texImage2D_1: dart.privateName(web_gl, "_texImage2D_1"),
    _texImage2D_2: dart.privateName(web_gl, "_texImage2D_2"),
    _texImage2D_3: dart.privateName(web_gl, "_texImage2D_3"),
    _texImage2D_4: dart.privateName(web_gl, "_texImage2D_4"),
    _texImage2D_5: dart.privateName(web_gl, "_texImage2D_5"),
    _texImage2D_6: dart.privateName(web_gl, "_texImage2D_6"),
    $texImage2D: dartx.texImage2D = Symbol("dartx.texImage2D"),
    $texParameterf: dartx.texParameterf = Symbol("dartx.texParameterf"),
    $texParameteri: dartx.texParameteri = Symbol("dartx.texParameteri"),
    _texSubImage2D_1: dart.privateName(web_gl, "_texSubImage2D_1"),
    _texSubImage2D_2: dart.privateName(web_gl, "_texSubImage2D_2"),
    _texSubImage2D_3: dart.privateName(web_gl, "_texSubImage2D_3"),
    _texSubImage2D_4: dart.privateName(web_gl, "_texSubImage2D_4"),
    _texSubImage2D_5: dart.privateName(web_gl, "_texSubImage2D_5"),
    _texSubImage2D_6: dart.privateName(web_gl, "_texSubImage2D_6"),
    $texSubImage2D: dartx.texSubImage2D = Symbol("dartx.texSubImage2D"),
    $uniform1f: dartx.uniform1f = Symbol("dartx.uniform1f"),
    $uniform1fv: dartx.uniform1fv = Symbol("dartx.uniform1fv"),
    $uniform1i: dartx.uniform1i = Symbol("dartx.uniform1i"),
    $uniform1iv: dartx.uniform1iv = Symbol("dartx.uniform1iv"),
    $uniform2f: dartx.uniform2f = Symbol("dartx.uniform2f"),
    $uniform2fv: dartx.uniform2fv = Symbol("dartx.uniform2fv"),
    $uniform2i: dartx.uniform2i = Symbol("dartx.uniform2i"),
    $uniform2iv: dartx.uniform2iv = Symbol("dartx.uniform2iv"),
    $uniform3f: dartx.uniform3f = Symbol("dartx.uniform3f"),
    $uniform3fv: dartx.uniform3fv = Symbol("dartx.uniform3fv"),
    $uniform3i: dartx.uniform3i = Symbol("dartx.uniform3i"),
    $uniform3iv: dartx.uniform3iv = Symbol("dartx.uniform3iv"),
    $uniform4f: dartx.uniform4f = Symbol("dartx.uniform4f"),
    $uniform4fv: dartx.uniform4fv = Symbol("dartx.uniform4fv"),
    $uniform4i: dartx.uniform4i = Symbol("dartx.uniform4i"),
    $uniform4iv: dartx.uniform4iv = Symbol("dartx.uniform4iv"),
    $uniformMatrix2fv: dartx.uniformMatrix2fv = Symbol("dartx.uniformMatrix2fv"),
    $uniformMatrix3fv: dartx.uniformMatrix3fv = Symbol("dartx.uniformMatrix3fv"),
    $uniformMatrix4fv: dartx.uniformMatrix4fv = Symbol("dartx.uniformMatrix4fv"),
    $useProgram: dartx.useProgram = Symbol("dartx.useProgram"),
    $validateProgram: dartx.validateProgram = Symbol("dartx.validateProgram"),
    $vertexAttrib1f: dartx.vertexAttrib1f = Symbol("dartx.vertexAttrib1f"),
    $vertexAttrib1fv: dartx.vertexAttrib1fv = Symbol("dartx.vertexAttrib1fv"),
    $vertexAttrib2f: dartx.vertexAttrib2f = Symbol("dartx.vertexAttrib2f"),
    $vertexAttrib2fv: dartx.vertexAttrib2fv = Symbol("dartx.vertexAttrib2fv"),
    $vertexAttrib3f: dartx.vertexAttrib3f = Symbol("dartx.vertexAttrib3f"),
    $vertexAttrib3fv: dartx.vertexAttrib3fv = Symbol("dartx.vertexAttrib3fv"),
    $vertexAttrib4f: dartx.vertexAttrib4f = Symbol("dartx.vertexAttrib4f"),
    $vertexAttrib4fv: dartx.vertexAttrib4fv = Symbol("dartx.vertexAttrib4fv"),
    $vertexAttribPointer: dartx.vertexAttribPointer = Symbol("dartx.vertexAttribPointer"),
    $viewport: dartx.viewport = Symbol("dartx.viewport"),
    $readPixels: dartx.readPixels = Symbol("dartx.readPixels"),
    $texImage2DUntyped: dartx.texImage2DUntyped = Symbol("dartx.texImage2DUntyped"),
    $texImage2DTyped: dartx.texImage2DTyped = Symbol("dartx.texImage2DTyped"),
    $texSubImage2DUntyped: dartx.texSubImage2DUntyped = Symbol("dartx.texSubImage2DUntyped"),
    $texSubImage2DTyped: dartx.texSubImage2DTyped = Symbol("dartx.texSubImage2DTyped"),
    $bufferDataTyped: dartx.bufferDataTyped = Symbol("dartx.bufferDataTyped"),
    $bufferSubDataTyped: dartx.bufferSubDataTyped = Symbol("dartx.bufferSubDataTyped"),
    $beginQuery: dartx.beginQuery = Symbol("dartx.beginQuery"),
    $beginTransformFeedback: dartx.beginTransformFeedback = Symbol("dartx.beginTransformFeedback"),
    $bindBufferBase: dartx.bindBufferBase = Symbol("dartx.bindBufferBase"),
    $bindBufferRange: dartx.bindBufferRange = Symbol("dartx.bindBufferRange"),
    $bindSampler: dartx.bindSampler = Symbol("dartx.bindSampler"),
    $bindTransformFeedback: dartx.bindTransformFeedback = Symbol("dartx.bindTransformFeedback"),
    $blitFramebuffer: dartx.blitFramebuffer = Symbol("dartx.blitFramebuffer"),
    $bufferData2: dartx.bufferData2 = Symbol("dartx.bufferData2"),
    $bufferSubData2: dartx.bufferSubData2 = Symbol("dartx.bufferSubData2"),
    $clearBufferfi: dartx.clearBufferfi = Symbol("dartx.clearBufferfi"),
    $clearBufferfv: dartx.clearBufferfv = Symbol("dartx.clearBufferfv"),
    $clearBufferiv: dartx.clearBufferiv = Symbol("dartx.clearBufferiv"),
    $clearBufferuiv: dartx.clearBufferuiv = Symbol("dartx.clearBufferuiv"),
    $clientWaitSync: dartx.clientWaitSync = Symbol("dartx.clientWaitSync"),
    $compressedTexImage2D2: dartx.compressedTexImage2D2 = Symbol("dartx.compressedTexImage2D2"),
    $compressedTexImage2D3: dartx.compressedTexImage2D3 = Symbol("dartx.compressedTexImage2D3"),
    $compressedTexImage3D: dartx.compressedTexImage3D = Symbol("dartx.compressedTexImage3D"),
    $compressedTexImage3D2: dartx.compressedTexImage3D2 = Symbol("dartx.compressedTexImage3D2"),
    $compressedTexSubImage2D2: dartx.compressedTexSubImage2D2 = Symbol("dartx.compressedTexSubImage2D2"),
    $compressedTexSubImage2D3: dartx.compressedTexSubImage2D3 = Symbol("dartx.compressedTexSubImage2D3"),
    $compressedTexSubImage3D: dartx.compressedTexSubImage3D = Symbol("dartx.compressedTexSubImage3D"),
    $compressedTexSubImage3D2: dartx.compressedTexSubImage3D2 = Symbol("dartx.compressedTexSubImage3D2"),
    $copyBufferSubData: dartx.copyBufferSubData = Symbol("dartx.copyBufferSubData"),
    $copyTexSubImage3D: dartx.copyTexSubImage3D = Symbol("dartx.copyTexSubImage3D"),
    $createQuery: dartx.createQuery = Symbol("dartx.createQuery"),
    $createSampler: dartx.createSampler = Symbol("dartx.createSampler"),
    $createTransformFeedback: dartx.createTransformFeedback = Symbol("dartx.createTransformFeedback"),
    $deleteQuery: dartx.deleteQuery = Symbol("dartx.deleteQuery"),
    $deleteSampler: dartx.deleteSampler = Symbol("dartx.deleteSampler"),
    $deleteSync: dartx.deleteSync = Symbol("dartx.deleteSync"),
    $deleteTransformFeedback: dartx.deleteTransformFeedback = Symbol("dartx.deleteTransformFeedback"),
    $drawArraysInstanced: dartx.drawArraysInstanced = Symbol("dartx.drawArraysInstanced"),
    $drawBuffers: dartx.drawBuffers = Symbol("dartx.drawBuffers"),
    $drawElementsInstanced: dartx.drawElementsInstanced = Symbol("dartx.drawElementsInstanced"),
    $drawRangeElements: dartx.drawRangeElements = Symbol("dartx.drawRangeElements"),
    $endQuery: dartx.endQuery = Symbol("dartx.endQuery"),
    $endTransformFeedback: dartx.endTransformFeedback = Symbol("dartx.endTransformFeedback"),
    $fenceSync: dartx.fenceSync = Symbol("dartx.fenceSync"),
    $framebufferTextureLayer: dartx.framebufferTextureLayer = Symbol("dartx.framebufferTextureLayer"),
    $getActiveUniformBlockName: dartx.getActiveUniformBlockName = Symbol("dartx.getActiveUniformBlockName"),
    $getActiveUniformBlockParameter: dartx.getActiveUniformBlockParameter = Symbol("dartx.getActiveUniformBlockParameter"),
    $getActiveUniforms: dartx.getActiveUniforms = Symbol("dartx.getActiveUniforms"),
    $getBufferSubData: dartx.getBufferSubData = Symbol("dartx.getBufferSubData"),
    $getFragDataLocation: dartx.getFragDataLocation = Symbol("dartx.getFragDataLocation"),
    $getIndexedParameter: dartx.getIndexedParameter = Symbol("dartx.getIndexedParameter"),
    $getInternalformatParameter: dartx.getInternalformatParameter = Symbol("dartx.getInternalformatParameter"),
    $getQuery: dartx.getQuery = Symbol("dartx.getQuery"),
    $getQueryParameter: dartx.getQueryParameter = Symbol("dartx.getQueryParameter"),
    $getSamplerParameter: dartx.getSamplerParameter = Symbol("dartx.getSamplerParameter"),
    $getSyncParameter: dartx.getSyncParameter = Symbol("dartx.getSyncParameter"),
    $getTransformFeedbackVarying: dartx.getTransformFeedbackVarying = Symbol("dartx.getTransformFeedbackVarying"),
    $getUniformBlockIndex: dartx.getUniformBlockIndex = Symbol("dartx.getUniformBlockIndex"),
    _getUniformIndices_1: dart.privateName(web_gl, "_getUniformIndices_1"),
    $getUniformIndices: dartx.getUniformIndices = Symbol("dartx.getUniformIndices"),
    $invalidateFramebuffer: dartx.invalidateFramebuffer = Symbol("dartx.invalidateFramebuffer"),
    $invalidateSubFramebuffer: dartx.invalidateSubFramebuffer = Symbol("dartx.invalidateSubFramebuffer"),
    $isQuery: dartx.isQuery = Symbol("dartx.isQuery"),
    $isSampler: dartx.isSampler = Symbol("dartx.isSampler"),
    $isSync: dartx.isSync = Symbol("dartx.isSync"),
    $isTransformFeedback: dartx.isTransformFeedback = Symbol("dartx.isTransformFeedback"),
    $pauseTransformFeedback: dartx.pauseTransformFeedback = Symbol("dartx.pauseTransformFeedback"),
    $readBuffer: dartx.readBuffer = Symbol("dartx.readBuffer"),
    $readPixels2: dartx.readPixels2 = Symbol("dartx.readPixels2"),
    $renderbufferStorageMultisample: dartx.renderbufferStorageMultisample = Symbol("dartx.renderbufferStorageMultisample"),
    $resumeTransformFeedback: dartx.resumeTransformFeedback = Symbol("dartx.resumeTransformFeedback"),
    $samplerParameterf: dartx.samplerParameterf = Symbol("dartx.samplerParameterf"),
    $samplerParameteri: dartx.samplerParameteri = Symbol("dartx.samplerParameteri"),
    _texImage2D2_1: dart.privateName(web_gl, "_texImage2D2_1"),
    _texImage2D2_2: dart.privateName(web_gl, "_texImage2D2_2"),
    _texImage2D2_3: dart.privateName(web_gl, "_texImage2D2_3"),
    _texImage2D2_4: dart.privateName(web_gl, "_texImage2D2_4"),
    _texImage2D2_5: dart.privateName(web_gl, "_texImage2D2_5"),
    _texImage2D2_6: dart.privateName(web_gl, "_texImage2D2_6"),
    _texImage2D2_7: dart.privateName(web_gl, "_texImage2D2_7"),
    $texImage2D2: dartx.texImage2D2 = Symbol("dartx.texImage2D2"),
    _texImage3D_1: dart.privateName(web_gl, "_texImage3D_1"),
    _texImage3D_2: dart.privateName(web_gl, "_texImage3D_2"),
    _texImage3D_3: dart.privateName(web_gl, "_texImage3D_3"),
    _texImage3D_4: dart.privateName(web_gl, "_texImage3D_4"),
    _texImage3D_5: dart.privateName(web_gl, "_texImage3D_5"),
    _texImage3D_6: dart.privateName(web_gl, "_texImage3D_6"),
    _texImage3D_7: dart.privateName(web_gl, "_texImage3D_7"),
    _texImage3D_8: dart.privateName(web_gl, "_texImage3D_8"),
    $texImage3D: dartx.texImage3D = Symbol("dartx.texImage3D"),
    $texStorage2D: dartx.texStorage2D = Symbol("dartx.texStorage2D"),
    $texStorage3D: dartx.texStorage3D = Symbol("dartx.texStorage3D"),
    _texSubImage2D2_1: dart.privateName(web_gl, "_texSubImage2D2_1"),
    _texSubImage2D2_2: dart.privateName(web_gl, "_texSubImage2D2_2"),
    _texSubImage2D2_3: dart.privateName(web_gl, "_texSubImage2D2_3"),
    _texSubImage2D2_4: dart.privateName(web_gl, "_texSubImage2D2_4"),
    _texSubImage2D2_5: dart.privateName(web_gl, "_texSubImage2D2_5"),
    _texSubImage2D2_6: dart.privateName(web_gl, "_texSubImage2D2_6"),
    _texSubImage2D2_7: dart.privateName(web_gl, "_texSubImage2D2_7"),
    $texSubImage2D2: dartx.texSubImage2D2 = Symbol("dartx.texSubImage2D2"),
    _texSubImage3D_1: dart.privateName(web_gl, "_texSubImage3D_1"),
    _texSubImage3D_2: dart.privateName(web_gl, "_texSubImage3D_2"),
    _texSubImage3D_3: dart.privateName(web_gl, "_texSubImage3D_3"),
    _texSubImage3D_4: dart.privateName(web_gl, "_texSubImage3D_4"),
    _texSubImage3D_5: dart.privateName(web_gl, "_texSubImage3D_5"),
    _texSubImage3D_6: dart.privateName(web_gl, "_texSubImage3D_6"),
    _texSubImage3D_7: dart.privateName(web_gl, "_texSubImage3D_7"),
    _texSubImage3D_8: dart.privateName(web_gl, "_texSubImage3D_8"),
    $texSubImage3D: dartx.texSubImage3D = Symbol("dartx.texSubImage3D"),
    _transformFeedbackVaryings_1: dart.privateName(web_gl, "_transformFeedbackVaryings_1"),
    $transformFeedbackVaryings: dartx.transformFeedbackVaryings = Symbol("dartx.transformFeedbackVaryings"),
    $uniform1fv2: dartx.uniform1fv2 = Symbol("dartx.uniform1fv2"),
    $uniform1iv2: dartx.uniform1iv2 = Symbol("dartx.uniform1iv2"),
    $uniform1ui: dartx.uniform1ui = Symbol("dartx.uniform1ui"),
    $uniform1uiv: dartx.uniform1uiv = Symbol("dartx.uniform1uiv"),
    $uniform2fv2: dartx.uniform2fv2 = Symbol("dartx.uniform2fv2"),
    $uniform2iv2: dartx.uniform2iv2 = Symbol("dartx.uniform2iv2"),
    $uniform2ui: dartx.uniform2ui = Symbol("dartx.uniform2ui"),
    $uniform2uiv: dartx.uniform2uiv = Symbol("dartx.uniform2uiv"),
    $uniform3fv2: dartx.uniform3fv2 = Symbol("dartx.uniform3fv2"),
    $uniform3iv2: dartx.uniform3iv2 = Symbol("dartx.uniform3iv2"),
    $uniform3ui: dartx.uniform3ui = Symbol("dartx.uniform3ui"),
    $uniform3uiv: dartx.uniform3uiv = Symbol("dartx.uniform3uiv"),
    $uniform4fv2: dartx.uniform4fv2 = Symbol("dartx.uniform4fv2"),
    $uniform4iv2: dartx.uniform4iv2 = Symbol("dartx.uniform4iv2"),
    $uniform4ui: dartx.uniform4ui = Symbol("dartx.uniform4ui"),
    $uniform4uiv: dartx.uniform4uiv = Symbol("dartx.uniform4uiv"),
    $uniformBlockBinding: dartx.uniformBlockBinding = Symbol("dartx.uniformBlockBinding"),
    $uniformMatrix2fv2: dartx.uniformMatrix2fv2 = Symbol("dartx.uniformMatrix2fv2"),
    $uniformMatrix2x3fv: dartx.uniformMatrix2x3fv = Symbol("dartx.uniformMatrix2x3fv"),
    $uniformMatrix2x4fv: dartx.uniformMatrix2x4fv = Symbol("dartx.uniformMatrix2x4fv"),
    $uniformMatrix3fv2: dartx.uniformMatrix3fv2 = Symbol("dartx.uniformMatrix3fv2"),
    $uniformMatrix3x2fv: dartx.uniformMatrix3x2fv = Symbol("dartx.uniformMatrix3x2fv"),
    $uniformMatrix3x4fv: dartx.uniformMatrix3x4fv = Symbol("dartx.uniformMatrix3x4fv"),
    $uniformMatrix4fv2: dartx.uniformMatrix4fv2 = Symbol("dartx.uniformMatrix4fv2"),
    $uniformMatrix4x2fv: dartx.uniformMatrix4x2fv = Symbol("dartx.uniformMatrix4x2fv"),
    $uniformMatrix4x3fv: dartx.uniformMatrix4x3fv = Symbol("dartx.uniformMatrix4x3fv"),
    $vertexAttribDivisor: dartx.vertexAttribDivisor = Symbol("dartx.vertexAttribDivisor"),
    $vertexAttribI4i: dartx.vertexAttribI4i = Symbol("dartx.vertexAttribI4i"),
    $vertexAttribI4iv: dartx.vertexAttribI4iv = Symbol("dartx.vertexAttribI4iv"),
    $vertexAttribI4ui: dartx.vertexAttribI4ui = Symbol("dartx.vertexAttribI4ui"),
    $vertexAttribI4uiv: dartx.vertexAttribI4uiv = Symbol("dartx.vertexAttribI4uiv"),
    $vertexAttribIPointer: dartx.vertexAttribIPointer = Symbol("dartx.vertexAttribIPointer"),
    $waitSync: dartx.waitSync = Symbol("dartx.waitSync"),
    $precision: dartx.precision = Symbol("dartx.precision"),
    $rangeMax: dartx.rangeMax = Symbol("dartx.rangeMax"),
    $rangeMin: dartx.rangeMin = Symbol("dartx.rangeMin"),
    $lastUploadedVideoFrameWasSkipped: dartx.lastUploadedVideoFrameWasSkipped = Symbol("dartx.lastUploadedVideoFrameWasSkipped"),
    $lastUploadedVideoHeight: dartx.lastUploadedVideoHeight = Symbol("dartx.lastUploadedVideoHeight"),
    $lastUploadedVideoTimestamp: dartx.lastUploadedVideoTimestamp = Symbol("dartx.lastUploadedVideoTimestamp"),
    $lastUploadedVideoWidth: dartx.lastUploadedVideoWidth = Symbol("dartx.lastUploadedVideoWidth")
  };
  const CT = Object.create({
    _: () => (C, CT)
  });
  var C = Array(1267).fill(void 0);
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    "org-dartlang-sdk:///lib/ui_web/ui_web/navigation/platform_location.dart",
    "org-dartlang-sdk:///lib/ui_web/ui_web/navigation/url_strategy.dart",
    "org-dartlang-sdk:///lib/ui_web/ui_web/platform_view_registry.dart",
    "org-dartlang-sdk:///lib/ui_web/ui_web/images.dart",
    "org-dartlang-sdk:///lib/ui_web/ui_web/plugins.dart",
    "org-dartlang-sdk:///lib/ui_web/ui_web/testing.dart",
    "org-dartlang-sdk:///lib/_engine/engine/alarm_clock.dart",
    "org-dartlang-sdk:///lib/_engine/engine/app_bootstrap.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvas_pool.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/canvas.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/canvaskit_api.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/canvaskit_canvas.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/color_filter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/display_canvas_factory.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/embedded_views.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/fonts.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/image.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/image_filter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/image_wasm_codecs.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/image_web_codecs.dart",
    "org-dartlang-sdk:///lib/_engine/engine/image_decoder.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/layer.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/layer_scene_builder.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/layer_tree.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/mask_filter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/multi_surface_rasterizer.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/rasterizer.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/n_way_canvas.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/native_memory.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/offscreen_canvas_rasterizer.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/overlay_scene_optimizer.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/painting.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/path.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/path_metrics.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/picture.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/picture_recorder.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/raster_cache.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/render_canvas.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/renderer.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/shader.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/surface.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/text.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/text_fragmenter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/util.dart",
    "org-dartlang-sdk:///lib/_engine/engine/canvaskit/vertices.dart",
    "org-dartlang-sdk:///lib/_engine/engine/clipboard.dart",
    "org-dartlang-sdk:///lib/_engine/engine/color_filter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/configuration.dart",
    "org-dartlang-sdk:///lib/_engine/engine/display.dart",
    "org-dartlang-sdk:///lib/_engine/engine/dom.dart",
    "org-dartlang-sdk:///lib/_engine/engine/engine_canvas.dart",
    "org-dartlang-sdk:///lib/_engine/engine/font_fallbacks.dart",
    "org-dartlang-sdk:///lib/_engine/engine/fonts.dart",
    "org-dartlang-sdk:///lib/_engine/engine/frame_reference.dart",
    "org-dartlang-sdk:///lib/_engine/engine/frame_timing_recorder.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/backdrop_filter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/surface.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/bitmap_canvas.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/canvas.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/clip.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/color_filter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/debug_canvas_reuse_overlay.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/dom_canvas.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/image.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html_image_element_codec.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/image_filter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/offset.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/opacity.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/painting.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/conic.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/cubic.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/path.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/path_iterator.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/path_metrics.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/path_ref.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/path_utils.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/path_windings.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/picture.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/platform_view.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/recording_canvas.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/render_vertices.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/renderer.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/resource_manager.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/scene.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/scene_builder.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/shader_mask.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/shaders/image_shader.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/shaders/normalized_gradient.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/shaders/shader.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/shaders/shader_builder.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/shaders/vertex_shaders.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/surface_stats.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/transform.dart",
    "org-dartlang-sdk:///lib/_engine/engine/initialization.dart",
    "org-dartlang-sdk:///lib/_engine/engine/js_interop/js_app.dart",
    "org-dartlang-sdk:///lib/_engine/engine/js_interop/js_loader.dart",
    "org-dartlang-sdk:///lib/_engine/engine/keyboard_binding.dart",
    "dart:_web_locale_keymap",
    "org-dartlang-sdk:///lib/_engine/engine/layers.dart",
    "org-dartlang-sdk:///lib/_engine/engine/mouse/context_menu.dart",
    "org-dartlang-sdk:///lib/_engine/engine/mouse/cursor.dart",
    "org-dartlang-sdk:///lib/_engine/engine/navigation/history.dart",
    "org-dartlang-sdk:///lib/_engine/engine/noto_font.dart",
    "org-dartlang-sdk:///lib/_engine/engine/onscreen_logging.dart",
    "org-dartlang-sdk:///lib/_engine/engine/platform_dispatcher.dart",
    "org-dartlang-sdk:///lib/_engine/engine/platform_dispatcher/app_lifecycle_state.dart",
    "org-dartlang-sdk:///lib/_engine/engine/platform_dispatcher/view_focus_binding.dart",
    "org-dartlang-sdk:///lib/_engine/engine/platform_views/content_manager.dart",
    "org-dartlang-sdk:///lib/_engine/engine/platform_views/message_handler.dart",
    "org-dartlang-sdk:///lib/_engine/engine/pointer_binding.dart",
    "org-dartlang-sdk:///lib/_engine/engine/pointer_converter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/profiler.dart",
    "org-dartlang-sdk:///lib/_engine/engine/raw_keyboard.dart",
    "org-dartlang-sdk:///lib/_engine/engine/rrect_renderer.dart",
    "org-dartlang-sdk:///lib/_engine/engine/safe_browser_api.dart",
    "org-dartlang-sdk:///lib/_engine/engine/scene_builder.dart",
    "org-dartlang-sdk:///lib/_engine/engine/scene_view.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/accessibility.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/checkable.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/semantics.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/dialog.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/focusable.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/heading.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/image.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/incrementable.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/label_and_value.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/link.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/live_region.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/platform_view.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/scrollable.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/semantics_helper.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/tappable.dart",
    "org-dartlang-sdk:///lib/_engine/engine/semantics/text_field.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text_editing/text_editing.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text_editing/composition_aware_mixin.dart",
    "org-dartlang-sdk:///lib/_engine/engine/services/buffers.dart",
    "org-dartlang-sdk:///lib/_engine/engine/services/message_codec.dart",
    "org-dartlang-sdk:///lib/_engine/engine/services/message_codecs.dart",
    "org-dartlang-sdk:///lib/_engine/engine/services/serialization.dart",
    "org-dartlang-sdk:///lib/_engine/engine/shader_data.dart",
    "org-dartlang-sdk:///lib/_engine/engine/shadow.dart",
    "org-dartlang-sdk:///lib/_engine/engine/test_embedding.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/canvas_paragraph.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/paragraph.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/font_collection.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/fragmenter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/layout_fragmenter.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/layout_service.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/line_breaker.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/measurement.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/paint_service.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/ruler.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/text_direction.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/unicode_range.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/word_breaker.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text_editing/autofill_hint.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text_editing/input_action.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text_editing/input_type.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text_editing/text_capitalization.dart",
    "org-dartlang-sdk:///lib/_engine/engine/util.dart",
    "org-dartlang-sdk:///lib/_engine/engine/vector_math.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/dimensions_provider/custom_element_dimensions_provider.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/dimensions_provider/dimensions_provider.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/dimensions_provider/full_page_dimensions_provider.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/display_dpr_stream.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/dom_manager.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/embedding_strategy/custom_element_embedding_strategy.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/embedding_strategy/full_page_embedding_strategy.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/flutter_view_manager.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/global_html_attributes.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/hot_restart_cache_handler.dart",
    "org-dartlang-sdk:///lib/_engine/engine/view_embedder/style_manager.dart",
    "org-dartlang-sdk:///lib/_engine/engine/window.dart",
    "org-dartlang-sdk:///lib/_engine/engine/font_change_util.dart",
    "org-dartlang-sdk:///lib/_engine/engine/font_fallback_data.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/path_to_svg.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path/tangent.dart",
    "org-dartlang-sdk:///lib/_engine/engine/html/path_to_svg_clip.dart",
    "org-dartlang-sdk:///lib/_engine/engine/js_interop/js_promise.dart",
    "org-dartlang-sdk:///lib/_engine/engine/js_interop/js_typed_data.dart",
    "org-dartlang-sdk:///lib/_engine/engine/platform_views/slots.dart",
    "org-dartlang-sdk:///lib/_engine/engine/pointer_binding/event_position_helper.dart",
    "org-dartlang-sdk:///lib/_engine/engine/svg.dart",
    "org-dartlang-sdk:///lib/_engine/engine/validators.dart",
    "org-dartlang-sdk:///lib/_engine/engine/browser_detection.dart",
    "org-dartlang-sdk:///lib/_engine/engine/mouse/prevent_default.dart",
    "org-dartlang-sdk:///lib/_engine/engine/text/word_break_properties.dart",
    "org-dartlang-sdk:///lib/_skwasm_stub/skwasm_stub/renderer.dart",
    "dart:_skwasm_stub",
    "org-dartlang-sdk:///lib/_web_unicode/web_unicode/codegen/line_break_properties.dart",
    "dart:_web_unicode",
    "org-dartlang-sdk:///lib/_web_unicode/web_unicode/codegen/word_break_properties.dart",
    "org-dartlang-sdk:///lib/_web_locale_keymap/web_locale_keymap/key_mappings.g.dart",
    "org-dartlang-sdk:///lib/_web_locale_keymap/web_locale_keymap/locale_keymap.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/http.dart",
    "dart:_http",
    "org-dartlang-sdk:///dart-sdk/lib/_http/crypto.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/http_date.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/http_headers.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/http_impl.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/http_parser.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/http_session.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/overrides.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/websocket.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/websocket_impl.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/http_testing.dart",
    "org-dartlang-sdk:///dart-sdk/lib/_http/embedder_config.dart",
    "org-dartlang-sdk:///lib/_web_test_fonts/web_test_fonts/web_test_fonts.dart",
    "dart:_web_test_fonts"
  ];
  dart.typeUniverse = {eC: new Map(), tR: {}, eT: {}, tPV: {}, sEA: []};
  var _as = dart.privateName(dart_rti, "_as");
  var _is = dart.privateName(dart_rti, "_is");
  var _jsError$ = dart.privateName(dart, "_jsError");
  var _toString = dart.privateName(dart, "_toString");
  dart.applyMixin = function applyMixin(to, from) {
    to[dart._mixin] = from;
    let toProto = to.prototype;
    let fromProto = from.prototype;
    dart._copyMembers(toProto, fromProto);
    dart._mixinSignature(to, from, dart._methodSig);
    dart._mixinSignature(to, from, dart._methodsDefaultTypeArgSig);
    dart._mixinSignature(to, from, dart._fieldSig);
    dart._mixinSignature(to, from, dart._getterSig);
    dart._mixinSignature(to, from, dart._setterSig);
    let mixinOnFn = from[dart.mixinOn];
    if (mixinOnFn != null) {
      let proto = mixinOnFn(Object.getPrototypeOf(to)).prototype;
      dart._copyMembers(toProto, proto);
    }
  };
  dart._copyMembers = function _copyMembers(to, from) {
    let names = dart.getOwnNamesAndSymbols(from);
    for (let i = 0, n = names.length; i < n; i = i + 1) {
      let name = names[i];
      if ("constructor" === name) continue;
      dart._copyMember(to, from, name);
    }
  };
  dart._copyMember = function _copyMember(to, from, name) {
    let desc = dart.getOwnPropertyDescriptor(from, name);
    if (name == Symbol.iterator) {
      let existing = dart.getOwnPropertyDescriptor(to, name);
      if (existing != null) {
        if (existing.writable) {
          to[name] = desc.value;
        }
        return;
      }
    }
    let getter = desc.get;
    let setter = desc.set;
    if (getter != null) {
      if (setter == null) {
        let obj = {
          set [name](x) {
            return super[name] = x;
          }
        };
        Object.setPrototypeOf(obj, Object.getPrototypeOf(to));
        desc.set = dart.getOwnPropertyDescriptor(obj, name).set;
      }
    } else if (setter != null) {
      if (getter == null) {
        let obj = {
          get [name]() {
            return super[name];
          }
        };
        Object.setPrototypeOf(obj, Object.getPrototypeOf(to));
        desc.get = dart.getOwnPropertyDescriptor(obj, name).get;
      }
    }
    dart.defineProperty(to, name, desc);
  };
  dart._mixinSignature = function _mixinSignature(to, from, kind) {
    to[kind] = () => {
      let baseMembers = dart._getMembers(Object.getPrototypeOf(to), kind);
      baseMembers = baseMembers == null ? null : baseMembers;
      let fromMembers = dart._getMembers(from, kind);
      if (fromMembers == null) return baseMembers;
      let toSignature = Object.create(baseMembers);
      dart.copyProperties(toSignature, fromMembers);
      return toSignature;
    };
  };
  dart.getMixin = function getMixin(clazz) {
    return Object.hasOwnProperty.call(clazz, dart._mixin) ? clazz[dart._mixin] : null;
  };
  dart.generic = function generic(typeConstructor, setBaseClass) {
    let length = typeConstructor.length;
    if (length < 1) {
      dart.throwInternalError('must have at least one generic type argument');
    }
    let resultMap = new Map();
    function makeGenericType(...args) {
      if (args.length != length && args.length != 0) {
        dart.throwInternalError('requires ' + length + ' or 0 type arguments');
      }
      while (args.length < length)
        args.push(T$.dynamic());
      let value = resultMap;
      for (let i = 0; i < length; i++) {
        let arg = args[i];
        if (arg == null) {
          dart.throwInternalError('type arguments should not be null: ' + typeConstructor);
        }
        let map = value;
        value = map.get(arg);
        if (value === void 0) {
          if (i + 1 == length) {
            value = typeConstructor.apply(null, args);
            if (value) {
              value[dart._typeArguments] = args;
              value[dart._originalDeclaration] = makeGenericType;
            }
            map.set(arg, value);
            if (setBaseClass != null) setBaseClass.apply(null, args);
          } else {
            value = new Map();
            map.set(arg, value);
          }
        }
      }
      return value;
    }
    makeGenericType[dart._genericTypeCtor] = typeConstructor;
    return makeGenericType;
  };
  dart.getGenericClass = function getGenericClass(type) {
    return dart.safeGetOwnProperty(type, dart._originalDeclaration);
  };
  dart.getGenericArgs = function getGenericArgs(type) {
    return dart.safeGetOwnProperty(type, dart._typeArguments);
  };
  dart.instantiateClass = function instantiateClass(genericClass, typeArgs) {
    if (genericClass == null) dart.nullFailed(I[0], 180, 32, "genericClass");
    if (typeArgs == null) dart.nullFailed(I[0], 180, 59, "typeArgs");
    return genericClass.apply(null, typeArgs);
  };
  dart.getConstructors = function getConstructors(value) {
    return dart._getMembers(value, dart._constructorSig);
  };
  dart.getMethods = function getMethods(value) {
    return dart._getMembers(value, dart._methodSig);
  };
  dart.getMethodsDefaultTypeArgs = function getMethodsDefaultTypeArgs(value) {
    return dart._getMembers(value, dart._methodsDefaultTypeArgSig);
  };
  dart.getFields = function getFields(value) {
    return dart._getMembers(value, dart._fieldSig);
  };
  dart.getGetters = function getGetters(value) {
    return dart._getMembers(value, dart._getterSig);
  };
  dart.getSetters = function getSetters(value) {
    return dart._getMembers(value, dart._setterSig);
  };
  dart.getStaticMethods = function getStaticMethods(value) {
    return dart._getMembers(value, dart._staticMethodSig);
  };
  dart.getStaticFields = function getStaticFields(value) {
    return dart._getMembers(value, dart._staticFieldSig);
  };
  dart.getStaticGetters = function getStaticGetters(value) {
    return dart._getMembers(value, dart._staticGetterSig);
  };
  dart.getStaticSetters = function getStaticSetters(value) {
    return dart._getMembers(value, dart._staticSetterSig);
  };
  dart.getGenericTypeCtor = function getGenericTypeCtor(value) {
    return value[dart._genericTypeCtor];
  };
  dart.getType = function getType(obj) {
    if (obj == null) return T$.Object();
    let constructor = obj.constructor;
    return constructor ? constructor : dart.global.Object.prototype.constructor;
  };
  dart.getLibraryUri = function getLibraryUri(value) {
    return value[dart._libraryUri];
  };
  dart.setLibraryUri = function setLibraryUri(f, uri) {
    return f[dart._libraryUri] = uri;
  };
  dart.getClassName = function getClassName(cls) {
    if (cls != null) {
      let tag = cls.$interfaceRecipe;
      if (tag != null) {
        let name = cls.name;
        let args = dart.getGenericArgs(cls);
        if (args == null) return name;
        let result = name + "<";
        for (let i = 0; i < args.length; i = i + 1) {
          if (i > 0) result = result + ", ";
          result = result + dart.typeName(args[i]);
        }
        result = result + ">";
        return result;
      }
    }
    return "unknown (null)";
  };
  dart.getClass = function getClass(obj) {
    return obj instanceof core.Object ? obj.constructor : obj[dart._extensionType];
  };
  dart.isJsInterop = function isJsInterop(obj) {
    if (obj == null) return false;
    if (typeof obj === "function") {
      return obj[dart._functionRti] == null;
    }
    if (typeof obj !== "object") return false;
    if (obj[dart._extensionType] != null) return false;
    if (obj instanceof dart.RecordImpl) return false;
    return !(obj instanceof core.Object);
  };
  dart.getMethodType = function getMethodType(type, name) {
    let m = dart.getMethods(type);
    return m != null ? m[name] : null;
  };
  dart.getMethodDefaultTypeArgs = function getMethodDefaultTypeArgs(type, name) {
    return dart.getMethodsDefaultTypeArgs(type)[name];
  };
  dart.getSetterType = function getSetterType(type, name) {
    let setters = dart.getSetters(type);
    if (setters != null) {
      let type = setters[name];
      if (type != null) {
        return type;
      }
    }
    let fields = dart.getFields(type);
    if (fields != null) {
      let fieldInfo = fields[name];
      if (fieldInfo != null && !fieldInfo.isFinal) {
        return fieldInfo.type;
      }
    }
    return null;
  };
  dart.classGetConstructorType = function classGetConstructorType(cls, name) {
    if (cls == null) return null;
    if (name == null) name = "new";
    let ctors = dart.getConstructors(cls);
    return ctors != null ? ctors[name] : null;
  };
  dart.setMethodSignature = function setMethodSignature(f, sigF) {
    return f[dart._methodSig] = sigF;
  };
  dart.setMethodsDefaultTypeArgSignature = function setMethodsDefaultTypeArgSignature(f, sigF) {
    return f[dart._methodsDefaultTypeArgSig] = sigF;
  };
  dart.setFieldSignature = function setFieldSignature(f, sigF) {
    return f[dart._fieldSig] = sigF;
  };
  dart.setGetterSignature = function setGetterSignature(f, sigF) {
    return f[dart._getterSig] = sigF;
  };
  dart.setSetterSignature = function setSetterSignature(f, sigF) {
    return f[dart._setterSig] = sigF;
  };
  dart.setConstructorSignature = function setConstructorSignature(f, sigF) {
    return f[dart._constructorSig] = sigF;
  };
  dart.setStaticMethodSignature = function setStaticMethodSignature(f, sigF) {
    return f[dart._staticMethodSig] = sigF;
  };
  dart.setStaticFieldSignature = function setStaticFieldSignature(f, sigF) {
    return f[dart._staticFieldSig] = sigF;
  };
  dart.setStaticGetterSignature = function setStaticGetterSignature(f, sigF) {
    return f[dart._staticGetterSig] = sigF;
  };
  dart.setStaticSetterSignature = function setStaticSetterSignature(f, sigF) {
    return f[dart._staticSetterSig] = sigF;
  };
  dart._getMembers = function _getMembers(type, kind) {
    let sig = type[kind];
    if (sig == null) return null;
    return typeof sig == "function" ? type[kind] = sig() : sig;
  };
  dart._hasMember = function _hasMember(type, kind, name) {
    let sig = dart._getMembers(type, kind);
    return sig != null && name in sig;
  };
  dart.hasMethod = function hasMethod(type, name) {
    return dart._hasMember(type, dart._methodSig, name);
  };
  dart.hasGetter = function hasGetter(type, name) {
    return dart._hasMember(type, dart._getterSig, name);
  };
  dart.hasSetter = function hasSetter(type, name) {
    return dart._hasMember(type, dart._setterSig, name);
  };
  dart.hasField = function hasField(type, name) {
    return dart._hasMember(type, dart._fieldSig, name);
  };
  dart._installProperties = function _installProperties(jsProto, dartType, installedParent) {
    if (dartType === core.Object) {
      dart._installPropertiesForObject(jsProto);
      return;
    }
    let dartSupertype = Object.getPrototypeOf(dartType);
    if (dartSupertype !== installedParent) {
      dart._installProperties(jsProto, dartSupertype, installedParent);
    }
    let dartProto = dartType.prototype;
    dart.copyTheseProperties(jsProto, dartProto, dart.getOwnPropertySymbols(dartProto));
  };
  dart._installPropertiesForObject = function _installPropertiesForObject(jsProto) {
    let coreObjProto = core.Object.prototype;
    let names = dart.getOwnPropertyNames(coreObjProto);
    for (let i = 0, n = names.length; i < n; i = i + 1) {
      let name = names[i];
      if ("constructor" === name) continue;
      let desc = dart.getOwnPropertyDescriptor(coreObjProto, name);
      dart.defineProperty(jsProto, dart.dartx[name], desc);
    }
  };
  dart._installIdentityEquals = function _installIdentityEquals() {
    dart.identityEquals == null ? dart.identityEquals = core.Object.prototype[dartx._equals] : null;
  };
  dart._applyExtension = function _applyExtension(jsType, dartExtType) {
    if (jsType == null) return;
    let jsProto = jsType.prototype;
    if (jsProto == null) return;
    if (dartExtType === core.Object) return;
    if (jsType === dart.global.Object) {
      let extName = dartExtType.name;
      dart._warn("Attempting to install properties from non-Object type '" + extName + "' onto the native JS Object.");
      return;
    }
    dart._installProperties(jsProto, dartExtType, jsProto[dart._extensionType]);
    if (dartExtType !== _interceptors.JSFunction) {
      jsProto[dart._extensionType] = dartExtType;
    }
    jsType[dart._methodSig] = dartExtType[dart._methodSig];
    jsType[dart._methodsDefaultTypeArgSig] = dartExtType[dart._methodsDefaultTypeArgSig];
    jsType[dart._fieldSig] = dartExtType[dart._fieldSig];
    jsType[dart._getterSig] = dartExtType[dart._getterSig];
    jsType[dart._setterSig] = dartExtType[dart._setterSig];
  };
  dart.applyExtension = function applyExtension(name, nativeObject) {
    let dartExtType = dart._extensionMap.get(name);
    let jsType = nativeObject.constructor;
    dart._applyExtension(jsType, dartExtType);
  };
  dart.applyAllExtensions = function applyAllExtensions(global) {
    dart._extensionMap.forEach((dartExtType, name) => dart._applyExtension(global[name], dartExtType));
  };
  dart.registerExtension = function registerExtension(name, dartExtType) {
    dart._extensionMap.set(name, dartExtType);
    let jsType = dart.global[name];
    dart._applyExtension(jsType, dartExtType);
  };
  dart.applyExtensionForTesting = function applyExtensionForTesting(name) {
    let dartExtType = dart._extensionMap.get(name);
    let jsType = dart.global[name];
    dart._applyExtension(jsType, dartExtType);
  };
  dart.defineExtensionMethods = function defineExtensionMethods(type, memberNames) {
    if (memberNames == null) dart.nullFailed(I[0], 507, 39, "memberNames");
    let proto = type.prototype;
    for (let name of memberNames) {
      proto[dartx[name]] = proto[name];
    }
  };
  dart.defineExtensionAccessors = function defineExtensionAccessors(type, memberNames) {
    if (memberNames == null) dart.nullFailed(I[0], 515, 46, "memberNames");
    let proto = type.prototype;
    for (let name of memberNames) {
      let member = null;
      let p = proto;
      for (; p != null; p = Object.getPrototypeOf(p)) {
        member = dart.getOwnPropertyDescriptor(p, name);
        if (member != null) break;
      }
      dart.defineProperty(proto, dartx[name], member);
    }
  };
  dart.definePrimitiveHashCode = function definePrimitiveHashCode(proto) {
    dart.defineProperty(proto, dart.identityHashCode_, dart.getOwnPropertyDescriptor(proto, $hashCode));
  };
  dart.setExtensionBaseClass = function setExtensionBaseClass(dartType, jsType) {
    let dartProto = dartType.prototype;
    dartProto[dart._extensionType] = dartType;
    Object.setPrototypeOf(dartProto, jsType.prototype);
  };
  dart.typeTagSymbol = function typeTagSymbol(recipe) {
    if (recipe == null) dart.nullFailed(I[0], 550, 29, "recipe");
    let tag = "$is_" + recipe;
    let probe = dart._typeTagSymbols[tag];
    if (probe != null) return probe;
    let tagSymbol = Symbol(tag);
    dart._typeTagSymbols[tag] = tagSymbol;
    return tagSymbol;
  };
  dart.addRtiResources = function addRtiResources(classRef, interfaceRecipes) {
    if (classRef == null) dart.nullFailed(I[0], 567, 29, "classRef");
    if (interfaceRecipes == null) dart.nullFailed(I[0], 567, 55, "interfaceRecipes");
    classRef.$ccache = null;
    classRef.$interfaceRecipe = interfaceRecipes[0];
    let prototype = classRef.prototype;
    for (let recipe of interfaceRecipes) {
      let tagSymbol = dart.typeTagSymbol(recipe);
      prototype[tagSymbol] = true;
    }
  };
  dart.getLibraryMetadata = function getLibraryMetadata(libraryUri) {
    let library = dart.getLibrary(libraryUri);
    if (library == null) dart.throw("cannot find library for " + libraryUri);
    let classes = G.JSArrayOfString().of([]);
    for (let name of dart.getOwnPropertyNames(library)) {
      let field = T$.String()[_as](name);
      let descriptor = dart.getOwnPropertyDescriptor(library, field);
      if (dart._get(T$.ObjectN(), T$.Object()[_as](descriptor), "value") != null && dart._get(T$.ObjectN(), T$.Object()[_as](descriptor), "get") == null) {
        let cls = dart._get(T$.ObjectN(), library, field);
        if (cls != null && dart._isDartClassObject(cls)) {
          classes[$add](dart._dartClassName(cls));
        }
      }
    }
    return classes;
  };
  dart.getClassMetadata = function getClassMetadata(libraryUri, name) {
    let library = dart.getLibrary(libraryUri);
    if (library == null) dart.throw("cannot find library for " + libraryUri);
    let rawName = name[$split]("<")[$first];
    let cls = dart._get(T$.ObjectN(), library, rawName);
    if (cls == null) return null;
    let fieldDescriptors = new (G.IdentityMapOfString$Object()).new();
    dart._collectFieldDescriptors(fieldDescriptors, dart.getFields(cls));
    dart._collectFieldDescriptorsFromNames(fieldDescriptors, T$.ListN()[_as](dart.getStaticFields(cls)), {isStatic: true});
    let methodDescriptors = new (G.IdentityMapOfString$Object()).new();
    dart._collectMethodDescriptors(methodDescriptors, dart.getMethods(cls));
    dart._collectMethodDescriptors(methodDescriptors, dart.getSetters(cls), {isSetter: true});
    dart._collectMethodDescriptors(methodDescriptors, dart.getGetters(cls), {isGetter: true});
    dart._collectMethodDescriptorsFromNames(methodDescriptors, T$.ListN()[_as](dart.getStaticMethods(cls)), {isStatic: true});
    dart._collectMethodDescriptorsFromNames(methodDescriptors, T$.ListN()[_as](dart.getStaticSetters(cls)), {isStatic: true, isSetter: true});
    dart._collectMethodDescriptorsFromNames(methodDescriptors, T$.ListN()[_as](dart.getStaticGetters(cls)), {isStatic: true, isGetter: true});
    let className = dart._dartClassName(cls);
    let superClassName = null;
    let superClassLibraryId = null;
    if (className !== "Object") {
      let superCls = dart.getPrototypeOf(cls);
      superClassName = dart._dartClassName(T$.Object()[_as](superCls));
      superClassLibraryId = T$.StringN()[_as](dart.getLibraryUri(superCls));
    }
    return dart._createJsObject((() => {
      let t$360 = new (G.IdentityMapOfString$dynamic()).new();
      t$360[$_set]("className", className);
      if (superClassName != null) t$360[$_set]("superClassName", superClassName);
      if (superClassLibraryId != null) t$360[$_set]("superClassLibraryId", superClassLibraryId);
      t$360[$_set]("fields", dart._createJsObject(fieldDescriptors));
      t$360[$_set]("methods", dart._createJsObject(methodDescriptors));
      return t$360;
    })());
  };
  dart._collectMethodDescriptorsFromNames = function _collectMethodDescriptorsFromNames(methodDescriptors, methodSymbols, opts) {
    let t$361;
    let isStatic = opts && 'isStatic' in opts ? opts.isStatic : false;
    if (isStatic == null) dart.nullFailed(I[1], 174, 8, "isStatic");
    let isGetter = opts && 'isGetter' in opts ? opts.isGetter : false;
    if (isGetter == null) dart.nullFailed(I[1], 175, 8, "isGetter");
    let isSetter = opts && 'isSetter' in opts ? opts.isSetter : false;
    if (isSetter == null) dart.nullFailed(I[1], 176, 8, "isSetter");
    for (let name of (t$361 = methodSymbols, t$361 == null ? [] : t$361)) {
      methodDescriptors[$_set](T$.String()[_as](name), dart._createJsObject((() => {
        let t$361 = new (G.IdentityMapOfString$dynamic()).new();
        if (isStatic) t$361[$_set]("isStatic", isStatic);
        if (isGetter) t$361[$_set]("isGetter", isGetter);
        if (isSetter) t$361[$_set]("isSetter", isSetter);
        return t$361;
      })()));
    }
  };
  dart._collectMethodDescriptors = function _collectMethodDescriptors(methodDescriptors, methods, opts) {
    let isStatic = opts && 'isStatic' in opts ? opts.isStatic : false;
    if (isStatic == null) dart.nullFailed(I[1], 190, 8, "isStatic");
    let isGetter = opts && 'isGetter' in opts ? opts.isGetter : false;
    if (isGetter == null) dart.nullFailed(I[1], 191, 8, "isGetter");
    let isSetter = opts && 'isSetter' in opts ? opts.isSetter : false;
    if (isSetter == null) dart.nullFailed(I[1], 192, 8, "isSetter");
    if (methods == null) return;
    for (let symbol of dart.getOwnNamesAndSymbols(methods)) {
      let name = dart._getDartSymbolName(symbol);
      if (name == null) continue;
      methodDescriptors[$_set](name, dart._createJsObject((() => {
        let t$362 = new (G.IdentityMapOfString$dynamic()).new();
        if (isStatic) t$362[$_set]("isStatic", isStatic);
        if (isGetter) t$362[$_set]("isGetter", isGetter);
        if (isSetter) t$362[$_set]("isSetter", isSetter);
        return t$362;
      })()));
    }
  };
  dart._collectFieldDescriptorsFromNames = function _collectFieldDescriptorsFromNames(fieldDescriptors, fieldNames, opts) {
    let t$363;
    let isStatic = opts && 'isStatic' in opts ? opts.isStatic : false;
    if (isStatic == null) dart.nullFailed(I[1], 211, 8, "isStatic");
    for (let name of (t$363 = fieldNames, t$363 == null ? [] : t$363)) {
      fieldDescriptors[$_set](T$.String()[_as](name), dart._createJsObject((() => {
        let t$363 = new (G.IdentityMapOfString$dynamic()).new();
        if (isStatic) t$363[$_set]("isStatic", isStatic);
        return t$363;
      })()));
    }
  };
  dart._collectFieldDescriptors = function _collectFieldDescriptors(fieldDescriptors, fields, opts) {
    let isStatic = opts && 'isStatic' in opts ? opts.isStatic : false;
    if (isStatic == null) dart.nullFailed(I[1], 224, 8, "isStatic");
    if (fields == null) return;
    for (let symbol of dart.getOwnNamesAndSymbols(fields)) {
      let fieldInfo = dart._get(T$.Object(), fields, T$.Object()[_as](symbol));
      let type = dart._get(T$.dynamic(), fieldInfo, "type");
      let isConst = dart._get(T$.dynamic(), fieldInfo, "isConst");
      let isFinal = dart._get(T$.dynamic(), fieldInfo, "isFinal");
      let libraryId = dart._get(T$.dynamic(), fieldInfo, "libraryUri");
      let className = dart.typeName(type);
      let name = dart._getDartSymbolName(symbol);
      if (name == null) continue;
      fieldDescriptors[$_set](name, dart._createJsObject((() => {
        let t$364 = new (G.IdentityMapOfString$dynamic()).new();
        if (dart.dtest(isConst)) t$364[$_set]("isConst", isConst);
        if (dart.dtest(isFinal)) t$364[$_set]("isFinal", isFinal);
        if (isStatic) t$364[$_set]("isStatic", isStatic);
        t$364[$_set]("className", className);
        if (libraryId != null) t$364[$_set]("classLibraryId", libraryId);
        return t$364;
      })()));
    }
  };
  dart.getFunctionMetadata = function getFunctionMetadata($function) {
    let name = dart._get(T$.String(), $function, "name");
    let boundObject = dart._get(T$.ObjectN(), $function, "_boundObject");
    if (boundObject != null) {
      let cls = dart._get(T$.Object(), boundObject, "constructor");
      let className = dart._dartClassName(cls);
      let boundMethod = dart._get(T$.Object(), $function, "_boundMethod");
      name = className + "." + dart._get(T$.String(), boundMethod, "name");
    }
    return name;
  };
  dart.getObjectMetadata = function getObjectMetadata(object) {
    let t$366, t$366$;
    let reifiedType = dart.getReifiedType(object);
    let className = dart.typeName(reifiedType);
    let libraryId = null;
    let cls = dart._get(T$.ObjectN(), object, "constructor");
    if (cls != null) {
      libraryId = dart.getLibraryUri(cls);
    }
    let length = dart._get(T$.dynamic(), object, "length");
    let result = dart._createJsObject((() => {
      let t$365 = new (G.IdentityMapOfString$dynamic()).new();
      t$365[$_set]("className", className);
      t$365[$_set]("libraryId", libraryId);
      t$365[$_set]("runtimeKind", "object");
      if (length != null) t$365[$_set]("length", length);
      return t$365;
    })());
    if (T$.List()[_is](object)) {
      dart._set(T$.String(), result, "runtimeKind", "list");
    } else if (T$.Map()[_is](object)) {
      dart._set(T$.String(), result, "runtimeKind", "map");
    } else if (T$.Set()[_is](object)) {
      dart._set(T$.String(), result, "runtimeKind", "set");
    } else if (T$.Function()[_is](object)) {
      dart._set(T$.String(), result, "runtimeKind", "function");
    } else if (T$.RecordImpl()[_is](object)) {
      let shape = object[dart.shapeProperty];
      let positionalCount = shape.positionals;
      let namedCount = (t$366$ = (t$366 = shape.named, t$366 == null ? null : t$366[$length]), t$366$ == null ? 0 : t$366$);
      let length = positionalCount + namedCount;
      dart._set(T$.String(), result, "libraryId", "dart:core");
      dart._set(T$.String(), result, "className", "Record");
      dart._set(T$.String(), result, "runtimeKind", "record");
      dart._set(T$.int(), result, "length", length);
    } else if (T$.Type()[_is](object)) {
      if (dart._isRecordType(object)) {
        let elements = dart._recordTypeElementTypes(object);
        let length = dart._get(T$.dynamic(), elements, "length");
        dart._set(T$.String(), result, "libraryId", "dart:core");
        dart._set(T$.String(), result, "className", "Type");
        dart._set(T$.String(), result, "runtimeKind", "recordType");
        dart._set(T$.dynamic(), result, "length", length);
      } else {
        let name = object.toString();
        dart._set(T$.String(), result, "libraryId", "dart:core");
        dart._set(T$.String(), result, "className", "Type");
        dart._set(T$.String(), result, "runtimeKind", "type");
        dart._set(T$.String(), result, "typeName", name);
      }
    } else if (T$.NativeError()[_is](object)) {
      if (className === "LegacyJavaScriptObject") {
        dart._set(T$.String(), result, "className", "NativeError");
      }
      dart._set(T$.String(), result, "libraryId", "dart:_interceptors");
      dart._set(T$.String(), result, "runtimeKind", "nativeError");
    } else if (T$.JavaScriptObject()[_is](object)) {
      dart._set(T$.String(), result, "libraryId", "dart:_interceptors");
      dart._set(T$.String(), result, "runtimeKind", "nativeObject");
    } else if (libraryId == null) {
      return dart._createEmptyJsObject();
    }
    return result;
  };
  dart.getObjectFieldNames = function getObjectFieldNames(object) {
    let t$366;
    let fieldNames = G.JSArrayOfString().of([]);
    let cls = dart._get(T$.Object(), object, "constructor");
    dart._collectObjectFieldNames(fieldNames, dart.getFields(cls));
    t$366 = fieldNames;
    return (() => {
      t$366[$sort]();
      return t$366;
    })();
  };
  dart._collectObjectFieldNames = function _collectObjectFieldNames(fieldNames, fields) {
    if (fields == null) return;
    for (let current = fields; current != null; current = dart.getPrototypeOf(current)) {
      for (let symbol of dart.getOwnNamesAndSymbols(current)) {
        let name = dart._getDartSymbolName(symbol);
        if (name != null && !fieldNames[$contains](name)) {
          fieldNames[$add](name);
        }
      }
    }
  };
  dart.getSetElements = function getSetElements(set) {
    return dart._createJsObject(new (G.IdentityMapOfString$dynamic()).from(["entries", set[$toList]()]));
  };
  dart.getMapElements = function getMapElements(map) {
    return dart._createJsObject(new (G.IdentityMapOfString$dynamic()).from(["keys", map[$keys][$toList](), "values", map[$values][$toList]()]));
  };
  dart.getTypeFields = function getTypeFields(type) {
    return dart._createJsObject(new (G.IdentityMapOfString$dynamic()).from(["hashCode", dart.hashCode(type), "runtimeType", dart.runtimeType(type)]));
  };
  dart.getRecordFields = function getRecordFields(record) {
    let t$366;
    let shape = record[dart.shapeProperty];
    let positionalCount = shape.positionals;
    let named = (t$366 = shape.named, t$366 == null ? null : t$366[$toList]());
    let values = record[dart.valuesProperty];
    return dart._createJsObject(new (G.IdentityMapOfString$dynamic()).from(["positionalCount", positionalCount, "named", named, "values", values]));
  };
  dart.getRecordTypeFields = function getRecordTypeFields(recordType) {
    let t$366;
    let types = dart._recordTypeElementTypes(recordType);
    let shape = dart._recordTypeShape(recordType);
    let positionalCount = shape.positionals;
    let named = (t$366 = shape.named, t$366 == null ? null : t$366[$toList]());
    return dart._createJsObject(new (G.IdentityMapOfString$dynamic()).from(["positionalCount", positionalCount, "named", named, "types", types]));
  };
  dart.getSubRange = function getSubRange(object, offset, count) {
    if (offset == null) dart.nullFailed(I[1], 498, 48, "offset");
    if (count == null) dart.nullFailed(I[1], 498, 60, "count");
    if (T$.Set()[_is](object)) {
      return object[$skip](offset)[$take](count)[$toList]();
    }
    if (T$.List()[_is](object)) {
      return object[$skip](offset)[$take](count)[$toList]();
    }
    if (T$.Map()[_is](object)) {
      return object[$entries][$skip](offset)[$take](count)[$toList]();
    }
    return object;
  };
  dart._isDartClassObject = function _isDartClassObject(object) {
    return dart._get(T$.dynamic(), object, "$interfaceRecipe") != null;
  };
  dart._dartClassName = function _dartClassName(cls) {
    let recipe = dart._get(T$.String(), cls, "$interfaceRecipe");
    return recipe[$split]("|")[$last];
  };
  dart._isRecordType = function _isRecordType(type) {
    return dart_rti.isRecordType(type);
  };
  dart._recordTypeElementTypes = function _recordTypeElementTypes(type) {
    return dart_rti.getRecordTypeElementTypes(type);
  };
  dart._recordTypeShape = function _recordTypeShape(type) {
    let shapeKey = dart_rti.getRecordTypeShapeKey(type);
    return dart._getValue(T$.Shape(), dart.shapes, shapeKey);
  };
  dart._symbolDescription = function _symbolDescription(symbol) {
    return dart._get(T$.String(), symbol, "description");
  };
  dart._getDartSymbolName = function _getDartSymbolName(symbol) {
    return typeof symbol == 'string' ? dart._getDartName(symbol) : dart._getDartName(dart._symbolDescription(T$.Object()[_as](symbol)));
  };
  dart._getDartName = function _getDartName(name) {
    if (name == null || name[$startsWith]("dartx.")) {
      return null;
    }
    if (name[$startsWith]("_#")) {
      name = name[$substring](name[$indexOf]("#") + 1);
    }
    if (name[$contains]("#")) {
      name = name[$substring](name[$indexOf]("#") + 1);
    }
    if (name[$contains]("#")) {
      return null;
    }
    return name[$split](".")[$last];
  };
  dart._createEmptyJsObject = function _createEmptyJsObject() {
    return {};
  };
  dart._createJsObject = function _createJsObject(map) {
    if (map == null) dart.nullFailed(I[1], 562, 45, "map");
    let object = {};
    for (let entry of map[$entries]) {
      dart._set(T$.dynamic(), object, entry.key, entry.value);
    }
    return object;
  };
  dart._set = function _set(T, object, field, value) {
    if (object == null) dart.nullFailed(I[1], 570, 21, "object");
    if (field == null) dart.nullFailed(I[1], 570, 36, "field");
    return object[field] = value;
  };
  dart._get = function _get(T, object, field) {
    if (object == null) dart.nullFailed(I[1], 573, 18, "object");
    if (field == null) dart.nullFailed(I[1], 573, 33, "field");
    return object[field];
  };
  dart._getValue = function _getValue(T, map, key) {
    if (key == null) dart.nullFailed(I[1], 575, 36, "key");
    return map.get(key);
  };
  dart.argumentError = function argumentError(value) {
    dart.throw(new core.ArgumentError.value(value));
  };
  dart.throwUnimplementedError = function throwUnimplementedError(message) {
    if (message == null) dart.nullFailed(I[2], 16, 32, "message");
    dart.throw(new core.UnimplementedError.new(message));
  };
  dart.throwDeferredIsLoadedError = function throwDeferredIsLoadedError(enclosingLibrary, importPrefix) {
    dart.throw(new _js_helper.DeferredNotLoadedError.new(enclosingLibrary, importPrefix));
  };
  dart.assertFailed = function assertFailed(message, fileUri = null, line = null, column = null, conditionSource = null) {
    dart.throw(new _js_helper.AssertionErrorImpl.new(message, fileUri, line, column, conditionSource));
  };
  dart._checkModuleNullSafetyMode = function _checkModuleNullSafetyMode(isModuleSound) {
    if (isModuleSound !== false) {
      let sdkMode = "unsound";
      let moduleMode = isModuleSound ? "sound" : "unsound";
      dart.throw(new core.AssertionError.new("The null safety mode of the Dart SDK module " + "(" + sdkMode + ") does not match the null safety mode of this module " + "(" + moduleMode + ")."));
    }
  };
  dart._nullFailedMessage = function _nullFailedMessage(variableName) {
    return "A null value was passed into a non-nullable parameter: " + dart.str(variableName) + ".";
  };
  dart.nullFailed = function nullFailed(fileUri, line, column, variable) {
    if (dart._nonNullAsserts) {
      dart.throw(new _js_helper.AssertionErrorImpl.new(dart._nullFailedMessage(variable), fileUri, line, column, dart.str(variable) + " != null"));
    }
    let key = dart.str(fileUri) + ":" + dart.str(line) + ":" + dart.str(column);
    if (!dart._nullFailedSet.has(key)) {
      dart._nullFailedSet.add(key);
      dart._nullWarn(dart._nullFailedMessage(variable));
    }
  };
  dart.throwLateInitializationError = function throwLateInitializationError(name) {
    if (name == null) dart.nullFailed(I[2], 66, 37, "name");
    dart.throw(new _internal.LateError.new(name));
  };
  dart.throwCyclicInitializationError = function throwCyclicInitializationError(field = null) {
    dart.throw(new dart._CyclicInitializationError.new(field));
  };
  dart.throwNullValueError = function throwNullValueError() {
    dart.throw(new core.NoSuchMethodError._withInvocation(null, core.Invocation.method(new _internal.Symbol.new("<Unexpected Null Value>"), null, null)));
  };
  dart.castError = function castError(obj, expectedType) {
    let actualType = dart.getReifiedType(obj);
    let message = dart._castErrorMessage(actualType, expectedType);
    dart.throw(new _js_helper.TypeErrorImpl.new(message));
  };
  dart._castErrorMessage = function _castErrorMessage(from, to) {
    let fromName = "'" + dart.typeName(from) + "'";
    let toName = "'" + dart.typeName(to) + "'";
    if (fromName === toName) {
      fromName = fromName + (" (in " + dart.str(dart.getLibraryUri(from)) + ")");
      toName = toName + (" (in " + dart.str(dart.getLibraryUri(to)) + ")");
    }
    return "Expected a value of type " + toName + ", but got one of type " + fromName;
  };
  dart.getThrown = function getThrown(error) {
    if (error != null) {
      let value = error[dart._thrownValue];
      if (value != null) return value;
      if (dart._isStackOverflowError(error)) {
        let dartStackOverflowError = new core.StackOverflowError.new();
        error[dart._thrownValue] = dartStackOverflowError;
        return dartStackOverflowError;
      }
    }
    return error;
  };
  dart._isStackOverflowError = function _isStackOverflowError(error) {
    if (error == null) dart.nullFailed(I[2], 171, 35, "error");
    let message = error.message;
    if (!(typeof message == 'string')) return false;
    if (typeof RangeError == "function" && error instanceof RangeError && message[$contains]("call stack")) {
      return true;
    }
    if (typeof InternalError == "function" && error instanceof InternalError && message[$contains]("too much recursion")) {
      return true;
    }
    return false;
  };
  dart.stackTrace = function stackTrace(error) {
    if (!(error instanceof Error)) {
      return new dart._StackTrace.missing(error);
    }
    let trace = error[dart._stackTrace];
    if (trace != null) return trace;
    return error[dart._stackTrace] = new dart._StackTrace.new(error);
  };
  dart.stackTraceForError = function stackTraceForError(error) {
    if (error == null) dart.nullFailed(I[2], 222, 38, "error");
    let jsError = error[dart._jsError];
    if (jsError == null) return null;
    return dart.stackTrace(jsError);
  };
  dart.rethrow = function rethrow_(error) {
    if (error == null) dart.nullFailed(I[2], 233, 22, "error");
    throw error;
  };
  dart.throw = function throw_(exception) {
    throw new dart.DartError(exception);
  };
  dart.createErrorWithStack = function createErrorWithStack(exception, trace) {
    if (exception == null) dart.nullFailed(I[2], 316, 37, "exception");
    if (trace == null) {
      let error = exception[dart._jsError];
      return error != null ? error : new dart.DartError(exception);
    }
    if (T$._StackTrace()[_is](trace)) {
      let originalError = trace[_jsError$];
      if (exception === dart.getThrown(originalError)) {
        return originalError;
      }
    }
    return new dart.RethrownDartError(exception, trace);
  };
  dart.stackPrint = function stackPrint(error) {
    if (error == null) dart.nullFailed(I[2], 334, 24, "error");
    console.log(error.stack ? error.stack : "No stack trace for: " + error);
  };
  dart.bind = function bind(obj, name, method) {
    if (obj == null) obj = _interceptors.jsNull;
    if (method == null) method = obj[name];
    let f = method.bind(obj);
    f._boundObject = obj;
    f._boundMethod = method;
    let objType = dart.getType(obj);
    let methodType = dart.getMethodType(objType, name);
    if (methodType != null) {
      if (dart_rti.isGenericFunctionType(methodType)) {
        let defaultTypeArgs = dart.getMethodDefaultTypeArgs(objType, name);
        f._defaultTypeArgs = defaultTypeArgs;
      }
      f[dart._functionRti] = methodType;
    }
    return f;
  };
  dart.bindCall = function bindCall(obj, name) {
    if (obj == null) return null;
    let objType = dart.getType(obj);
    let ftype = dart.getMethodType(objType, name);
    if (ftype == null) return null;
    let method = obj[name];
    let f = method.bind(obj);
    f._boundObject = obj;
    f._boundMethod = method;
    f[dart._functionRti] = ftype;
    if (dart_rti.isGenericFunctionType(ftype)) {
      let defaultTypeArgs = dart.getMethodDefaultTypeArgs(objType, name);
      f._defaultTypeArgs = defaultTypeArgs;
    }
    return f;
  };
  dart.gbind = function gbind(f, ...typeArgs) {
    if (typeArgs == null) dart.nullFailed(I[3], 105, 29, "typeArgs");
    let fnType = f[dart._functionRti];
    let instantiationBinding = dart_rti.bindingRtiFromList(typeArgs);
    let instantiatedType = dart_rti.instantiatedGenericFunctionType(fnType, instantiationBinding);
    let result = (...args) => f.apply(null, typeArgs.concat(args));
    result._originalFn = f;
    result._typeArgs = dart.constList(typeArgs, T$.Object());
    return dart.fn(result, instantiatedType);
  };
  dart.dloadRepl = function dloadRepl(obj, field) {
    return dart.dload(obj, dart.replNameLookup(obj, field));
  };
  dart.dload = function dload(obj, field) {
    if (typeof obj == "function" && field == "call") {
      return obj;
    }
    let f = dart._canonicalMember(obj, field);
    _debugger.trackCall(obj);
    if (f != null) {
      let type = dart.getType(obj);
      if (dart.hasField(type, f) || dart.hasGetter(type, f)) return obj[f];
      if (dart.hasMethod(type, f)) return dart.bind(obj, f, null);
      if (obj instanceof dart.RecordImpl && typeof f == 'string') {
        let value = obj[f];
        if (value !== void 0) return value;
      }
      if (dart.isJsInterop(obj)) return obj[f];
    }
    return dart.noSuchMethod(obj, new dart.InvocationImpl.new(field, [], {isGetter: true}));
  };
  dart._stripGenericArguments = function _stripGenericArguments(type) {
    let genericClass = dart.getGenericClass(type);
    if (genericClass != null) return genericClass();
    return type;
  };
  dart.dputRepl = function dputRepl(obj, field, value) {
    return dart.dput(obj, dart.replNameLookup(obj, field), value);
  };
  dart.dput = function dput(obj, field, value) {
    let f = dart._canonicalMember(obj, field);
    _debugger.trackCall(obj);
    if (f != null) {
      let setterType = dart.getSetterType(dart.getType(obj), f);
      if (setterType != null) {
        return obj[f] = setterType[_as](value);
      }
      if (dart.isJsInterop(obj)) return obj[f] = value;
    }
    dart.noSuchMethod(obj, new dart.InvocationImpl.new(field, [value], {isSetter: true}));
    return value;
  };
  dart._argumentErrors = function _argumentErrors(type, actuals, namedActuals) {
    if (type == null) dart.nullFailed(I[3], 185, 32, "type");
    let functionParameters = dart_rti.getFunctionParametersForDynamicChecks(type);
    let requiredPositional = functionParameters.requiredPositional;
    let requiredCount = requiredPositional.length;
    let actualsCount = actuals[$length];
    if (actualsCount < requiredCount) {
      return "Dynamic call with missing positional arguments. " + "Expected: " + dart.strSafe(requiredCount) + " Actual: " + dart.strSafe(actualsCount);
    }
    let extras = actualsCount - requiredCount;
    let optionalPositional = functionParameters.optionalPositional;
    let optionalPositionalCount = optionalPositional.length;
    if (extras > optionalPositionalCount) {
      let maxPositionalCount = requiredCount + optionalPositionalCount;
      let expected = requiredCount === maxPositionalCount ? dart.strSafe(maxPositionalCount) : dart.strSafe(requiredCount) + " - " + dart.strSafe(maxPositionalCount);
      return "Dynamic call with too many positional arguments. " + "Expected: " + expected + " " + "Actual: " + dart.strSafe(actualsCount);
    }
    let names = null;
    let requiredNamed = functionParameters.requiredNamed;
    let optionalNamed = functionParameters.optionalNamed;
    if (namedActuals != null) {
      names = dart.getOwnPropertyNames(namedActuals);
      for (let name of names) {
        if (!(requiredNamed.hasOwnProperty(name) || optionalNamed.hasOwnProperty(name))) {
          return "Dynamic call with unexpected named argument '" + dart.str(name) + "'.";
        }
      }
    }
    let requiredNames = dart.getOwnPropertyNames(requiredNamed);
    if (requiredNames.length > 0) {
      let missingRequired = namedActuals == null ? requiredNames : requiredNames[$where](name => !namedActuals.hasOwnProperty(name));
      if (missingRequired[$isNotEmpty]) {
        let argNames = missingRequired.join(", ");
        let error = "Dynamic call with missing required named arguments: " + argNames + ".";
        {
          dart._nullWarn(error);
        }
      }
    }
    for (let i = 0; i < requiredCount; i = i + 1) {
      let requiredRti = requiredPositional[i];
      let passedValue = actuals[i];
      requiredRti[_as](passedValue);
    }
    for (let i = 0; i < extras; i = i + 1) {
      let optionalRti = optionalPositional[i];
      let passedValue = actuals[i + requiredCount];
      optionalRti[_as](passedValue);
    }
    if (names != null) {
      for (let name of names) {
        let namedRti = requiredNamed[name] || optionalNamed[name];
        let passedValue = namedActuals[name];
        namedRti[_as](passedValue);
      }
    }
    return null;
  };
  dart._toSymbolName = function _toSymbolName(symbol) {
    let str = symbol.toString();
    return str.substring(7, str.length - 1);
  };
  dart._toDisplayName = function _toDisplayName(name) {
    if (name[0] === '_') {
      switch (name) {
        case '_get':
          return '[]';
        case '_set':
          return '[]=';
        case '_negate':
          return 'unary-';
        case '_constructor':
        case '_prototype':
          return name.substring(1);
      }
    }
    return name;
  };
  dart._dartSymbol = function _dartSymbol(name) {
    return typeof name === "symbol" ? dart.const(new _js_helper.PrivateSymbol.new(dart._toSymbolName(name), name)) : dart.const(new _internal.Symbol.new(dart._toDisplayName(name)));
  };
  dart._setterSymbol = function _setterSymbol(name) {
    return typeof name === "symbol" ? dart.const(new _js_helper.PrivateSymbol.new(dart._toSymbolName(name) + "=", name)) : dart.const(new _internal.Symbol.new(dart._toDisplayName(name) + "="));
  };
  dart._checkAndCall = function _checkAndCall(f, ftype, obj, typeArgs, args, named, displayName) {
    _debugger.trackCall(obj);
    let originalTarget = obj === void 0 ? f : obj;
    function callNSM(errorMessage) {
      return dart.noSuchMethod(originalTarget, new dart.InvocationImpl.new(displayName, args, {namedArguments: named, typeArguments: typeArgs || [], isMethod: true, failureMessage: errorMessage}));
    }
    if (f == null) return callNSM("Dynamic call of null.");
    if (!(f instanceof Function)) {
      if (f != null) {
        originalTarget = f;
        f = dart.bindCall(f, dart._canonicalMember(f, "call"));
        ftype = null;
        displayName = "call";
      }
      if (f == null) {
        return callNSM("Dynamic call of object has no instance method 'call'.");
      }
    }
    if (ftype == null) {
      ftype = f[dart._functionRti];
    }
    if (ftype == null) {
      if (typeArgs != null) {
        dart.throwTypeError("call to JS object `" + obj + "` with type arguments <" + typeArgs + "> is not supported.");
      }
      if (named != null) args.push(named);
      return f.apply(obj, args);
    }
    if (dart_rti.isGenericFunctionType(ftype)) {
      let typeParameterBounds = dart_rti.Rti._getGenericFunctionBounds(ftype);
      let typeParameterCount = typeParameterBounds.length;
      if (typeArgs == null) {
        typeArgs = f._defaultTypeArgs;
      }
      let typeArgCount = typeArgs.length;
      if (typeArgCount !== typeParameterCount) {
        return callNSM("Dynamic call with incorrect number of type arguments. " + "Expected: " + dart.strSafe(typeParameterCount) + " Actual: " + dart.strSafe(typeArgCount));
      } else {
        for (let i = 0; i < typeParameterCount; i = i + 1) {
          let bound = typeParameterBounds[i];
          let typeArg = typeArgs[i];
          if (!dart.equals(bound, typeArg)) {
            let instantiatedBound = dart_rti.substitute(bound, typeArgs);
            let validSubtype = dart_rti.isSubtype(dart.typeUniverse, typeArg, instantiatedBound);
            if (!validSubtype) {
              dart.throwTypeError("The type '" + dart_rti._rtiToString(typeArg, null) + "' " + "is not a subtype of the type variable bound " + "'" + dart_rti._rtiToString(instantiatedBound, null) + "' " + "of type variable 'T" + dart.strSafe(i + 1) + "' " + "in '" + dart_rti._rtiToString(T$.Object()[_as](ftype), null) + "'.");
            }
          }
        }
      }
      let instantiationBinding = dart_rti.bindingRtiFromList(typeArgs);
      ftype = dart_rti.instantiatedGenericFunctionType(ftype, instantiationBinding);
    } else if (typeArgs != null) {
      return callNSM("Dynamic call with unexpected type arguments. " + "Expected: 0 Actual: " + dart.strSafe(typeArgs.length));
    }
    let errorMessage = dart._argumentErrors(T$.Object()[_as](ftype), args, named);
    if (errorMessage == null) {
      if (typeArgs != null) args = typeArgs.concat(args);
      if (named != null) args.push(named);
      return f.apply(obj, args);
    }
    return callNSM(errorMessage);
  };
  dart.validateFunctionToJSArgs = function validateFunctionToJSArgs(f, args) {
    if (args == null) dart.nullFailed(I[3], 437, 34, "args");
    let errorMessage = dart._argumentErrors(f[dart._functionRti], args, null);
    if (errorMessage != null) {
      return dart.noSuchMethod(f, new dart.InvocationImpl.new(f.name, args, {isMethod: true, failureMessage: errorMessage}));
    }
    return null;
  };
  dart.dcall = function dcall(f, args, named = null) {
    return dart._checkAndCall(f, null, void 0, null, args, named, f.name);
  };
  dart.dgcall = function dgcall(f, typeArgs, args, named = null) {
    return dart._checkAndCall(f, null, void 0, typeArgs, args, named, f.name || 'call');
  };
  dart.replNameLookup = function replNameLookup(object, field) {
    let rawField = field;
    if (typeof field == 'symbol') {
      if (field in object) return field;
      field = field.toString();
      field = field.substring('Symbol('.length, field.length - 1);
    } else if (field.charAt(0) != '_') {
      return field;
    }
    if (field in object) return field;
    let proto = object;
    while (proto !== null) {
      let symbols = Object.getOwnPropertySymbols(proto);
      let target = 'Symbol(' + field + ')';
      for (let s = 0; s < symbols.length; s++) {
        let sym = symbols[s];
        if (target == sym.toString()) return sym;
      }
      proto = Object.getPrototypeOf(proto);
    }
    return rawField;
  };
  dart.callMethod = function callMethod(obj, name, typeArgs, args, named, displayName) {
    if (typeof obj == "function" && name == "call") {
      return dart.dgcall(obj, typeArgs, args, named);
    }
    let symbol = dart._canonicalMember(obj, name);
    if (symbol == null) {
      return dart.noSuchMethod(obj, new dart.InvocationImpl.new(displayName, T$.ListOfObjectN()[_as](args), {isMethod: true}));
    }
    let f = obj != null ? obj[symbol] : null;
    let type = dart.getType(obj);
    let ftype = dart.getMethodType(type, symbol);
    if (ftype != null && dart_rti.isGenericFunctionType(ftype) && typeArgs == null) {
      typeArgs = dart.getMethodDefaultTypeArgs(type, symbol);
    }
    return dart._checkAndCall(f, ftype, obj, typeArgs, args, named, displayName);
  };
  dart.dsend = function dsend(obj, method, args, named = null) {
    return dart.callMethod(obj, method, null, args, named, method);
  };
  dart.dgsend = function dgsend(obj, typeArgs, method, args, named = null) {
    return dart.callMethod(obj, method, typeArgs, args, named, method);
  };
  dart.dsendRepl = function dsendRepl(obj, method, args, named = null) {
    return dart.callMethod(obj, dart.replNameLookup(obj, method), null, args, named, method);
  };
  dart.dgsendRepl = function dgsendRepl(obj, typeArgs, method, args, named = null) {
    return dart.callMethod(obj, dart.replNameLookup(obj, method), typeArgs, args, named, method);
  };
  dart.dindex = function dindex(obj, index) {
    return dart.callMethod(obj, "_get", null, [index], null, "[]");
  };
  dart.dsetindex = function dsetindex(obj, index, value) {
    return dart.callMethod(obj, "_set", null, [index, value], null, "[]=");
  };
  dart.test = function test(obj) {
    if (obj == null) dart.throw(new _js_helper.BooleanConversionAssertionError.new());
    return obj;
  };
  dart.dtest = function dtest(obj) {
    if (!(typeof obj == 'boolean')) {
      dart.booleanConversionFailed(dart.test(T$.boolN()[_as](obj)));
      dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
    }
    return obj;
  };
  dart.booleanConversionFailed = function booleanConversionFailed(obj) {
    let actual = dart.typeName(dart.getReifiedType(obj));
    dart.throw(new _js_helper.TypeErrorImpl.new("type '" + actual + "' is not a 'bool' in boolean expression"));
  };
  dart.asInt = function asInt(obj) {
    if (Math.floor(obj) != obj) {
      if (obj == null && true) {
        dart._nullWarnOnType(T$.int());
        return null;
      } else {
        dart.castError(obj, T$.int());
      }
    }
    return obj;
  };
  dart.asNullableInt = function asNullableInt(obj) {
    return obj == null ? null : dart.asInt(obj);
  };
  dart.notNull = function _notNull(x) {
    if (x == null) dart.throwNullValueError();
    return x;
  };
  dart.nullCast = function nullCast(x, type) {
    if (x == null) {
      {
        dart._nullWarnOnType(type);
      }
    }
    return x;
  };
  dart.nullCheck = function nullCheck(x) {
    if (x == null) dart.throw(new _js_helper.TypeErrorImpl.new("Unexpected null value."));
    return x;
  };
  dart._lookupNonTerminal = function _lookupNonTerminal(map, key) {
    if (map == null) dart.nullFailed(I[3], 617, 34, "map");
    let result = map.get(key);
    if (result != null) return result;
    map.set(key, result = new Map());
    return dart.nullCheck(result);
  };
  dart.constMap = function constMap(K, V, elements) {
    if (elements == null) dart.nullFailed(I[3], 624, 34, "elements");
    let count = elements[$length];
    let map = dart._lookupNonTerminal(dart.constantMaps, count);
    for (let i = 0; i < count; i = i + 1) {
      map = dart._lookupNonTerminal(map, elements[i]);
    }
    map = dart._lookupNonTerminal(map, dart_rti.createRuntimeType(K));
    let result = map.get(V);
    if (result != null) return result;
    result = new (_js_helper.ImmutableMap$(K, V)).from(elements);
    map.set(V, result);
    return result;
  };
  dart._createImmutableSet = function _createImmutableSet(E, elements) {
    if (elements == null) dart.nullFailed(I[3], 642, 42, "elements");
    dart._immutableSetConstructor == null ? dart._immutableSetConstructor = dart.getLibrary("dart:collection")._ImmutableSet$ : null;
    return new (dart._immutableSetConstructor(E)).from(elements);
  };
  dart.constSet = function constSet(E, elements) {
    if (elements == null) dart.nullFailed(I[3], 648, 31, "elements");
    let count = elements[$length];
    let map = dart._lookupNonTerminal(dart.constantSets, count);
    for (let i = 0; i < count; i = i + 1) {
      map = dart._lookupNonTerminal(map, elements[i]);
    }
    let result = map.get(E);
    if (result != null) return result;
    result = dart._createImmutableSet(E, elements);
    map.set(E, result);
    return result;
  };
  dart.multiKeyPutIfAbsent = function multiKeyPutIfAbsent(map, keys, valueFn) {
    for (let k of keys) {
      let value = map.get(k);
      if (!value) {
        map.set(k, value = new Map());
      }
      map = value;
    }
    if (map.has(dart._value)) return map.get(dart._value);
    let value = valueFn();
    map.set(dart._value, value);
    return value;
  };
  dart.const = function const_(obj) {
    let names = dart.getOwnNamesAndSymbols(obj);
    let count = names.length;
    let map = dart._lookupNonTerminal(dart.constants, count);
    for (let i = 0; i < count; i++) {
      let name = names[i];
      map = dart._lookupNonTerminal(map, name);
      map = dart._lookupNonTerminal(map, obj[name]);
    }
    let type = dart.getReifiedType(obj);
    let value = map.get(type);
    if (value) return value;
    map.set(type, obj);
    return obj;
  };
  dart.constList = function constList(elements, elementType) {
    let count = elements.length;
    let map = dart._lookupNonTerminal(dart.constantLists, count);
    for (let i = 0; i < count; i++) {
      map = dart._lookupNonTerminal(map, elements[i]);
    }
    let value = map.get(elementType);
    if (value) return value;
    _interceptors.JSArray$(elementType).unmodifiable(elements);
    map.set(elementType, elements);
    return elements;
  };
  dart.constFn = function constFn(x) {
    return () => x;
  };
  dart.extensionSymbol = function extensionSymbol(name) {
    if (name == null) dart.nullFailed(I[3], 766, 24, "name");
    return dartx[name];
  };
  dart.equals = function equals(x, y) {
    if (x == null) return y == null;
    let probe = x[$_equals];
    if (probe !== void 0) {
      return probe.call(x, y);
    }
    return x === y;
  };
  dart.hashCode = function hashCode(obj) {
    if (obj == null) return 0;
    let probe = obj[$hashCode];
    if (probe !== void 0) return probe;
    return core.identityHashCode(obj);
  };
  dart.toString = function _toString$(obj) {
    if (typeof obj == 'string') return obj;
    if (obj == null) return "null";
    let probe = obj[$toString];
    if (probe !== void 0) {
      return probe.call(obj);
    }
    return obj.toString();
  };
  dart.toStringTearoff = function toStringTearoff(obj) {
    if (obj == null || obj[$toString] !== void 0) {
      return T$.VoidToString()[_as](dart.bind(obj, $toString, null));
    }
    return T$.VoidToString()[_as](dart.bind(obj, "toString", null));
  };
  dart.str = function str(obj) {
    if (typeof obj == 'string') return obj;
    if (obj == null) return "null";
    let probe = obj[$toString];
    let result = probe !== void 0 ? probe.call(obj) : obj.toString();
    if (typeof result == 'string') return result;
    dart.throw(new core.ArgumentError.value(obj, "object", "toString method returned 'null'"));
  };
  dart.strSafe = function strSafe(obj) {
    let result = obj[$toString]();
    if (typeof result == 'string') return result;
    dart.throw(new core.ArgumentError.value(obj, "object", "toString method returned 'null'"));
  };
  dart.noSuchMethod = function noSuchMethod(obj, invocation) {
    if (invocation == null) dart.nullFailed(I[3], 883, 30, "invocation");
    if (obj == null || obj[$noSuchMethod] == null) {
      dart.defaultNoSuchMethod(obj, invocation);
      dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
    }
    return obj[$noSuchMethod](invocation);
  };
  dart.noSuchMethodTearoff = function noSuchMethodTearoff(obj) {
    if (obj == null || obj[$noSuchMethod] !== void 0) {
      return T$.InvocationTodynamic()[_as](dart.bind(obj, $noSuchMethod, null));
    }
    return T$.InvocationTodynamic()[_as](dart.bind(obj, $noSuchMethod, core.Object.prototype[$noSuchMethod]));
  };
  dart.defaultNoSuchMethod = function defaultNoSuchMethod(obj, i) {
    if (i == null) dart.nullFailed(I[3], 912, 43, "i");
    dart.throw(new core.NoSuchMethodError._withInvocation(obj, i));
  };
  dart.runtimeType = function runtimeType(obj) {
    if (obj == null) return dart_rti.createRuntimeType(T$.Null());
    let probe = obj[$runtimeType];
    if (probe !== void 0) return probe;
    return dart_rti.createRuntimeType(dart.getReifiedType(obj));
  };
  dart._canonicalMember = function _canonicalMember(obj, name) {
    if (typeof name === "symbol") return name;
    if (obj != null && obj[dart._extensionType] != null) {
      return dartx[name];
    }
    if (name == "constructor" || name == "prototype") {
      name = "+" + name;
    }
    return name;
  };
  dart.ddcDeferredLoading = function ddcDeferredLoading(enable) {
    if (enable == null) dart.nullFailed(I[3], 973, 30, "enable");
    dart._ddcDeferredLoading = enable;
  };
  dart.ddcNewLoadLibraryTiming = function ddcNewLoadLibraryTiming(enable) {
    if (enable == null) dart.nullFailed(I[3], 986, 35, "enable");
    dart._ddcNewLoadLibraryTiming = enable;
  };
  dart.loadLibrary = function loadLibrary(libraryUri, importPrefix, targetModule) {
    if (!dart._ddcDeferredLoading) {
      let result = dart.deferredImports.get(libraryUri);
      if (result === void 0) {
        dart.deferredImports.set(libraryUri, result = new Set());
      }
      result.add(importPrefix);
      return dart._ddcNewLoadLibraryTiming ? G.FutureOfvoid().new(() => {
      }) : G.FutureOfvoid().value();
    } else {
      let currentHotRestartIteration = dart.hotRestartIteration;
      let loadId = libraryUri + "::" + importPrefix;
      if (targetModule[$isEmpty]) {
        dart.throw(new core.ArgumentError.new("Empty module passed for deferred load: " + loadId + "."));
      }
      if (dart.global.deferred_loader.isLoaded(loadId)) {
        return G.FutureOfvoid().value();
      }
      let completer = async.Completer.new();
      function internalComplete(beforeComplete) {
        if (dart.hotRestartIteration === currentHotRestartIteration && beforeComplete != null) {
          beforeComplete();
        }
        completer.complete();
      }
      dart.global.deferred_loader.loadDeferred(loadId, targetModule, internalComplete, error => completer.completeError(T$.Object()[_as](error)));
      return completer.future;
    }
  };
  dart.checkDeferredIsLoaded = function checkDeferredIsLoaded(libraryUri, importPrefix) {
    if (!dart._ddcDeferredLoading) {
      let loaded = dart.deferredImports.get(libraryUri);
      if (loaded === void 0 || !loaded.has(importPrefix)) {
        dart.throwDeferredIsLoadedError(libraryUri, importPrefix);
      }
    } else {
      let loadId = libraryUri + "::" + importPrefix;
      let loaded = dart.global.deferred_loader.loadIds.has(loadId);
      if (!loaded) dart.throwDeferredIsLoadedError(libraryUri, importPrefix);
    }
  };
  dart.defineLazy = function defineLazy(to, from, useOldSemantics) {
    if (useOldSemantics == null) dart.nullFailed(I[3], 1061, 32, "useOldSemantics");
    for (let name of dart.getOwnNamesAndSymbols(from)) {
      if (useOldSemantics) {
        dart.defineLazyFieldOld(to, name, dart.getOwnPropertyDescriptor(from, name));
      } else {
        dart.defineLazyField(to, name, dart.getOwnPropertyDescriptor(from, name));
      }
    }
  };
  dart.defineLazyField = function defineLazyField(to, name, desc) {
    const initializer = desc.get;
    const final = desc.set == null;
    let initialized = false;
    let init = initializer;
    let value = null;
    let savedLocals = false;
    desc.get = function() {
      if (init == null) return value;
      if (final && initialized) dart.throwLateInitializationError(name);
      if (!savedLocals) {
        dart.resetFields.push(() => {
          init = initializer;
          value = null;
          savedLocals = false;
          initialized = false;
        });
        savedLocals = true;
      }
      initialized = true;
      try {
        value = init();
      } catch (e) {
        initialized = false;
        throw e;
      }
      init = null;
      return value;
    };
    desc.configurable = true;
    let setter = desc.set;
    if (setter != null) {
      desc.set = function(x) {
        if (!savedLocals) {
          dart.resetFields.push(() => {
            init = initializer;
            value = null;
            savedLocals = false;
            initialized = false;
          });
          savedLocals = true;
        }
        init = null;
        value = x;
        setter(x);
      };
    }
    return dart.defineProperty(to, name, desc);
  };
  dart.defineLazyFieldOld = function defineLazyFieldOld(to, name, desc) {
    const initializer = desc.get;
    let init = initializer;
    let value = null;
    let savedLocals = false;
    desc.get = function() {
      if (init == null) return value;
      let f = init;
      init = dart.throwCyclicInitializationError;
      if (f === init) f(name);
      if (!savedLocals) {
        dart.resetFields.push(() => {
          init = initializer;
          value = null;
          savedLocals = false;
        });
        savedLocals = true;
      }
      try {
        value = f();
        init = null;
        return value;
      } catch (e) {
        init = null;
        value = null;
        throw e;
      }
    };
    desc.configurable = true;
    let setter = desc.set;
    if (setter != null) {
      desc.set = function(x) {
        if (!savedLocals) {
          dart.resetFields.push(() => {
            init = initializer;
            value = null;
            savedLocals = false;
          });
          savedLocals = true;
        }
        init = null;
        value = x;
        setter(x);
      };
    }
    return dart.defineProperty(to, name, desc);
  };
  dart.jsInteropNullCheck = function jsInteropNullCheck(val) {
    if (dart._jsInteropNonNullAsserts && val == null) {
      dart.throw(new _js_helper.TypeErrorImpl.new("Unexpected null value encountered from a JavaScript Interop API typed as non-nullable."));
    }
    return val;
  };
  dart.checkNativeNonNull = function checkNativeNonNull(variable) {
    if (dart._nativeNonNullAsserts && variable == null) {
      dart.throw(new _js_helper.TypeErrorImpl.new("      Unexpected null value encountered in Dart web platform libraries.\n      This may be a bug in the Dart SDK APIs. If you would like to report a bug\n      or disable this error, you can use the following instructions:\n      https://github.com/dart-lang/sdk/tree/master/sdk/lib/html/doc/NATIVE_NULL_ASSERTIONS.md\n    "));
    }
    return variable;
  };
  dart.registerShape = function registerShape(shapeKey, positionals, named) {
    let cached = dart.shapes.get(shapeKey);
    if (cached != null) {
      return cached;
    }
    let shape = new dart.Shape.new(positionals, named);
    dart.shapes.set(shapeKey, shape);
    return shape;
  };
  dart.registerRecord = function registerRecord(shapeKey, positionals, named) {
    let cached = dart._records.get(shapeKey);
    if (cached != null) {
      return cached;
    }
    let recordClass = class _Record extends dart.RecordImpl {};
    let newRecord = recordClass.new = function(shape, values) {
      Object.getPrototypeOf(recordClass).new.call(this, shape, values);
    };
    newRecord.prototype = recordClass.prototype;
    let recordPrototype = recordClass.prototype;
    const _recordGet = index => {
      return function recordGet() {
        return this[dart.valuesProperty][index];
      };
    };
    let count = 0;
    while (count < positionals) {
      let name = "$" + dart.strSafe(count + 1);
      dart.defineAccessor(recordPrototype, name, {get: _recordGet(count), enumerable: true});
      count = count + 1;
    }
    if (named != null) {
      for (let name of named) {
        if (name === "constructor" || name === "prototype") {
          name = "_" + name;
        }
        dart.defineAccessor(recordPrototype, name, {get: _recordGet(count), enumerable: true});
        count = count + 1;
      }
    }
    dart._records.set(shapeKey, newRecord);
    return newRecord;
  };
  dart.recordLiteral = function recordLiteral(shapeKey, positionals, named, values) {
    let shape = dart.registerShape(shapeKey, positionals, named);
    let record = dart.registerRecord(shapeKey, positionals, named);
    return new record(shape, values);
  };
  dart.recordSafeToString = function recordSafeToString(rec) {
    if (rec == null) dart.nullFailed(I[4], 224, 38, "rec");
    return rec[_toString](true);
  };
  dart.fn = function fn(closure, type) {
    closure[dart._functionRti] = type;
    return closure;
  };
  dart.gFn = function gFn(closure, type, defaultTypeArgs) {
    if (closure == null) dart.nullFailed(I[5], 58, 12, "closure");
    if (type == null) dart.nullFailed(I[5], 58, 28, "type");
    if (defaultTypeArgs == null) dart.nullFailed(I[5], 58, 50, "defaultTypeArgs");
    closure[dart._functionRti] = type;
    closure._defaultTypeArgs = defaultTypeArgs;
    return closure;
  };
  dart.lazyFn = function lazyFn(closure, computeType) {
    if (computeType == null) dart.nullFailed(I[5], 72, 35, "computeType");
    dart.defineAccessor(closure, dart._runtimeType, {
      get: () => dart.defineValue(closure, dart._runtimeType, computeType()),
      set: value => dart.defineValue(closure, dart._runtimeType, value),
      configurable: true
    });
    return closure;
  };
  dart.getInterceptorForRti = function getInterceptorForRti(obj) {
    let classRef = null;
    if (obj == null) {
      classRef = core.Null;
    } else {
      switch (typeof obj) {
        case "number":
          {
            classRef = Math.floor(obj) == obj ? _interceptors.JSInt : _interceptors.JSNumNotInt;
            break;
          }
        case "function":
          {
            let signature = obj[dart._functionRti];
            classRef = signature != null ? core.Function : _interceptors.JavaScriptFunction;
            break;
          }
        default:
          {
            classRef = obj[dart._extensionType];
            if (classRef == null) classRef = _interceptors.LegacyJavaScriptObject;
          }
      }
    }
    if (classRef == null) dart.throw("Unknown interceptor for object: (" + dart.str(obj) + ")");
    return classRef.prototype;
  };
  dart.getReifiedType = function getReifiedType(obj) {
    switch (typeof obj) {
      case "object":
        {
          if (obj == null) return T$.Null();
          if (obj instanceof dart.RecordImpl) return _js_helper.getRtiForRecord(obj);
          if (obj instanceof core.Object || obj[dart._extensionType] != null) {
            return dart_rti.instanceType(obj);
          }
          return T$.LegacyJavaScriptObject();
        }
      case "function":
        {
          let signature = obj[dart._functionRti];
          if (signature != null) return signature;
          return T$.JavaScriptFunction();
        }
      case "undefined":
        {
          return T$.Null();
        }
      case "number":
        {
          return Math.floor(obj) == obj ? T$.int() : T$.double();
        }
      case "boolean":
        {
          return T$.bool();
        }
      case "string":
        {
          return T$.String();
        }
      case "symbol":
        {
          return T$.JavaScriptSymbol();
        }
      case "bigint":
        {
          return T$.JavaScriptBigInt();
        }
      default:
        {
          return T$.LegacyJavaScriptObject();
        }
    }
  };
  dart.getModuleName = function getModuleName(module) {
    if (module == null) dart.nullFailed(I[5], 162, 30, "module");
    return module[dart._moduleName];
  };
  dart.getModuleNames = function getModuleNames() {
    return Array.from(dart._loadedModules.keys());
  };
  dart.getSourceMap = function getSourceMap(moduleName) {
    if (moduleName == null) dart.nullFailed(I[5], 172, 29, "moduleName");
    return dart._loadedSourceMaps.get(moduleName);
  };
  dart.getModuleLibraries = function getModuleLibraries(name) {
    if (name == null) dart.nullFailed(I[5], 177, 27, "name");
    let module = dart._loadedModules.get(name);
    if (module == null) return null;
    module[dart._moduleName] = name;
    return module;
  };
  dart.getModulePartMap = function getModulePartMap(name) {
    if (name == null) dart.nullFailed(I[5], 185, 25, "name");
    return dart._loadedPartMaps.get(name);
  };
  dart.trackLibraries = function trackLibraries(moduleName, libraries, parts, sourceMap) {
    if (moduleName == null) dart.nullFailed(I[5], 189, 12, "moduleName");
    if (libraries == null) dart.nullFailed(I[5], 189, 31, "libraries");
    if (parts == null) dart.nullFailed(I[5], 189, 49, "parts");
    if (typeof parts == 'string') {
      sourceMap = parts;
      parts = {};
    }
    dart._loadedSourceMaps.set(moduleName, sourceMap);
    dart._loadedModules.set(moduleName, libraries);
    dart._loadedPartMaps.set(moduleName, parts);
    dart._libraries = null;
    dart._libraryObjects = null;
    dart._parts = null;
  };
  dart._computeLibraryMetadata = function _computeLibraryMetadata() {
    dart._libraries = G.JSArrayOfString().of([]);
    dart._libraryObjects = new (G.IdentityMapOfString$ObjectN()).new();
    dart._parts = new (G.IdentityMapOfString$ListNOfString()).new();
    let modules = dart.getModuleNames();
    for (let name of modules) {
      let module = dart.getModuleLibraries(name);
      let libraries = dart.getOwnPropertyNames(module)[$cast](T$.String());
      dart.nullCheck(dart._libraries)[$addAll](libraries);
      for (let library of libraries) {
        dart.nullCheck(dart._libraryObjects)[$_set](library, module[library]);
      }
      let partMap = dart.getModulePartMap(name);
      libraries = dart.getOwnPropertyNames(partMap)[$cast](T$.String());
      for (let library of libraries) {
        dart.nullCheck(dart._parts)[$_set](library, G.ListOfString().from(partMap[library]));
      }
    }
  };
  dart.getLibrary = function getLibrary(uri) {
    if (uri == null) dart.nullFailed(I[5], 237, 27, "uri");
    if (dart._libraryObjects == null) {
      dart._computeLibraryMetadata();
    }
    return dart.nullCheck(dart._libraryObjects)[$_get](uri);
  };
  dart.getLibraries = function getLibraries() {
    if (dart._libraries == null) {
      dart._computeLibraryMetadata();
    }
    return dart.nullCheck(dart._libraries);
  };
  dart.getParts = function getParts(libraryUri) {
    let t$366;
    if (libraryUri == null) dart.nullFailed(I[5], 267, 30, "libraryUri");
    if (dart._parts == null) {
      dart._computeLibraryMetadata();
    }
    t$366 = dart.nullCheck(dart._parts)[$_get](libraryUri);
    return t$366 == null ? G.JSArrayOfString().of([]) : t$366;
  };
  dart.polyfill = function polyfill(window) {
    if (window[dart._polyfilled]) return false;
    window[dart._polyfilled] = true;
    if (typeof window.NodeList !== "undefined") {
      window.NodeList.prototype.get = function(i) {
        return this[i];
      };
      window.NamedNodeMap.prototype.get = function(i) {
        return this[i];
      };
      window.DOMTokenList.prototype.get = function(i) {
        return this[i];
      };
      window.HTMLCollection.prototype.get = function(i) {
        return this[i];
      };
      if (typeof window.PannerNode == "undefined") {
        let audioContext;
        if (typeof window.AudioContext == "undefined" && typeof window.webkitAudioContext != "undefined") {
          audioContext = new window.webkitAudioContext();
        } else {
          audioContext = new window.AudioContext();
          window.StereoPannerNode = audioContext.createStereoPanner().constructor;
        }
        window.PannerNode = audioContext.createPanner().constructor;
      }
      if (typeof window.AudioSourceNode == "undefined") {
        window.AudioSourceNode = Object.getPrototypeOf(MediaElementAudioSourceNode);
      }
      if (typeof window.FontFaceSet == "undefined") {
        if (typeof window.document.fonts != "undefined") {
          window.FontFaceSet = Object.getPrototypeOf(window.document.fonts).constructor;
        }
      }
      if (typeof window.MemoryInfo == "undefined") {
        if (typeof window.performance.memory != "undefined") {
          window.MemoryInfo = function() {
          };
          window.MemoryInfo.prototype = Object.getPrototypeOf(window.performance.memory);
        }
      }
      if (typeof window.Geolocation == "undefined") {
        window.Geolocation == window.navigator.geolocation.constructor;
      }
      if (typeof window.Animation == "undefined") {
        let d = window.document.createElement('div');
        if (typeof d.animate != "undefined") {
          window.Animation = d.animate(d).constructor;
        }
      }
      if (typeof window.SourceBufferList == "undefined") {
        if ('MediaSource' in window) {
          window.SourceBufferList = new window.MediaSource().sourceBuffers.constructor;
        }
      }
      if (typeof window.SpeechRecognition == "undefined") {
        window.SpeechRecognition = window.webkitSpeechRecognition;
        window.SpeechRecognitionError = window.webkitSpeechRecognitionError;
        window.SpeechRecognitionEvent = window.webkitSpeechRecognitionEvent;
      }
    }
    return true;
  };
  dart.trackProfile = function trackProfile(flag) {
    if (flag == null) dart.nullFailed(I[6], 191, 24, "flag");
    dart.__trackProfile = flag;
  };
  dart.setStartAsyncSynchronously = function setStartAsyncSynchronously(value = true) {
    if (value == null) dart.nullFailed(I[6], 216, 39, "value");
    dart.startAsyncSynchronously = value;
  };
  dart.hotRestart = function hotRestart() {
    dart.hotRestartIteration = dart.hotRestartIteration + 1;
    for (let f of dart.resetFields)
      f();
    dart.resetFields[$clear]();
    for (let m of dart._cacheMaps)
      m.clear();
    dart._cacheMaps[$clear]();
    dart._nullComparisonSet.clear();
    dart.constants.clear();
    dart.constantLists.clear();
    dart.constantSets.clear();
    dart.constantMaps.clear();
    dart.moduleConstCaches.forEach(value => value.fill(void 0));
    if (!dart._ddcDeferredLoading) {
      dart.deferredImports.clear();
    }
  };
  dart._throwInvalidFlagError = function _throwInvalidFlagError(message) {
    if (message == null) dart.nullFailed(I[7], 8, 31, "message");
    return dart.throw(new core.UnsupportedError.new("Invalid flag combination.\n" + message));
  };
  dart.weakNullSafetyWarnings = function weakNullSafetyWarnings(showWarnings) {
    if (showWarnings == null) dart.nullFailed(I[7], 38, 34, "showWarnings");
    if (showWarnings && false) {
      dart._throwInvalidFlagError("Null safety violations cannot be shown as warnings when running with sound null safety.");
    }
    dart._weakNullSafetyWarnings = showWarnings;
  };
  dart.weakNullSafetyErrors = function weakNullSafetyErrors(showErrors) {
    if (showErrors == null) dart.nullFailed(I[7], 55, 32, "showErrors");
    if (showErrors && false) {
      dart._throwInvalidFlagError("Null safety violations are already thrown as errors when running with sound null safety.");
    }
    if (showErrors && dart._weakNullSafetyWarnings) {
      dart._throwInvalidFlagError("Null safety violations can be shown as warnings or thrown as errors, not both.");
    }
    dart._weakNullSafetyErrors = showErrors;
    dart.extraNullSafetyChecks = showErrors;
  };
  dart.nonNullAsserts = function nonNullAsserts(enable) {
    if (enable == null) dart.nullFailed(I[7], 80, 26, "enable");
    dart._nonNullAsserts = enable;
  };
  dart.nativeNonNullAsserts = function nativeNonNullAsserts(enable) {
    if (enable == null) dart.nullFailed(I[7], 92, 32, "enable");
    if (enable && true) {
      dart._warn("Enabling `native-null-assertions` is only supported when sound null safety is enabled.");
    }
    dart._nativeNonNullAsserts = enable;
  };
  dart.jsInteropNonNullAsserts = function jsInteropNonNullAsserts(enable) {
    if (enable == null) dart.nullFailed(I[7], 107, 35, "enable");
    dart._jsInteropNonNullAsserts = enable;
  };
  dart.assertInterop = function assertInterop(f) {
    if (!(T$.LegacyJavaScriptObject()[_is](f) || !(f instanceof dart.global.Function))) dart.assertFailed("Dart function requires `allowInterop` to be passed to JavaScript.", I[7], 129, 7, "f is LegacyJavaScriptObject ||\n          !JS<bool>('bool', '# instanceof #.Function', f, global_)");
    return f;
  };
  dart.isDartClass = function isDartClass(obj) {
    if (!(obj instanceof Function)) return false;
    return obj.$interfaceRecipe != null;
  };
  dart.isDartFunction = function isDartFunction(obj) {
    if (!(obj instanceof Function)) return false;
    return obj[dart._functionRti] != null;
  };
  dart.tearoffInterop = function tearoffInterop(f, checkReturnType) {
    if (checkReturnType == null) dart.nullFailed(I[7], 165, 49, "checkReturnType");
    if (!T$.LegacyJavaScriptObject()[_is](f) || f == null) return f;
    let ret = dart._assertInteropExpando._get(f);
    if (ret == null) {
      ret = checkReturnType ? function(...arguments$) {
        var args = arguments$.map(dart.assertInterop);
        return dart.jsInteropNullCheck(f.apply(this, args));
      } : function(...arguments$) {
        var args = arguments$.map(dart.assertInterop);
        return f.apply(this, args);
      };
      dart._assertInteropExpando._set(f, ret);
    }
    return ret;
  };
  dart._warn = function _warn(arg) {
    console.warn(arg);
  };
  dart._nullWarn = function _nullWarn(message) {
    if (dart._weakNullSafetyWarnings) {
      dart._warn(dart.str(message) + "\n" + "This will become a failure when runtime null safety is enabled.");
    } else if (dart._weakNullSafetyErrors) {
      dart.throw(new _js_helper.TypeErrorImpl.new(T$.String()[_as](message)));
    }
  };
  dart._nullWarnOnType = function _nullWarnOnType(type) {
    let result = dart._nullComparisonSet.has(type);
    if (!result) {
      dart._nullComparisonSet.add(type);
      type = dart_rti.createRuntimeType(type);
      dart._nullWarn("Null is not a subtype of " + dart.str(type) + ".");
    }
  };
  dart.checkTypeBound = function checkTypeBound(type, bound, name) {
    let validSubtype = dart_rti.isSubtype(dart.typeUniverse, type, bound);
    if (!validSubtype) {
      dart.throwTypeError("type `" + dart.str(type) + "` does not extend `" + dart.str(bound) + "` of `" + name + "`.");
    }
  };
  dart.typeName = function typeName(type) {
    if (type === void 0) return "undefined type";
    if (type == null) return "null type";
    return dart_rti._rtiToString(type, null);
  };
  dart.defineValue = function defineValue(obj, name, value) {
    dart.defineAccessor(obj, name, {value: value, configurable: true, writable: true});
    return value;
  };
  dart.throwTypeError = function throwTypeError(message) {
    if (message == null) dart.nullFailed(I[8], 40, 28, "message");
    dart.throw(new _js_helper.TypeErrorImpl.new(message));
  };
  dart.throwInternalError = function throwInternalError(message) {
    if (message == null) dart.nullFailed(I[8], 45, 32, "message");
    throw Error(message);
  };
  dart.getOwnNamesAndSymbols = function getOwnNamesAndSymbols(obj) {
    let names = dart.getOwnPropertyNames(obj);
    let symbols = dart.getOwnPropertySymbols(obj);
    return names.concat(symbols);
  };
  dart.safeGetOwnProperty = function safeGetOwnProperty(obj, name) {
    if (obj.hasOwnProperty(name)) return obj[name];
  };
  dart.copyTheseProperties = function copyTheseProperties(to, from, names) {
    for (let i = 0, n = names.length; i < n; i = i + 1) {
      let name = names[i];
      if ("constructor" === name) continue;
      dart.copyProperty(to, from, name);
    }
    return to;
  };
  dart.copyProperty = function copyProperty(to, from, name) {
    let desc = dart.getOwnPropertyDescriptor(from, name);
    if (name == Symbol.iterator) {
      let existing = dart.getOwnPropertyDescriptor(to, name);
      if (existing != null) {
        if (existing.writable) {
          to[name] = desc.value;
        }
        return;
      }
    }
    dart.defineProperty(to, name, desc);
  };
  dart.export = function exportProperty(to, from, name) {
    return dart.copyProperty(to, from, name);
  };
  dart.copyProperties = function copyProperties(to, from) {
    return dart.copyTheseProperties(to, from, dart.getOwnNamesAndSymbols(from));
  };
  dart._polyfilled = Symbol("_polyfilled");
  dart.global = (function() {
    var globalState = typeof window != "undefined" ? window : typeof global != "undefined" ? global : typeof self != "undefined" ? self : null;
    if (!globalState) {
      globalState = new Function('return this;')();
    }
    dart.polyfill(globalState);
    if (globalState.Error) {
      globalState.Error.stackTraceLimit = Infinity;
    }
    let settings = 'ddcSettings' in globalState ? globalState.ddcSettings : {};
    dart.trackProfile('trackProfile' in settings ? settings.trackProfile : false);
    return globalState;
  })();
  dart.JsSymbol = Symbol;
  dart.libraryPrototype = dart.library;
  dart.startAsyncSynchronously = true;
  dart._cacheMaps = [];
  dart.resetFields = [];
  dart.moduleConstCaches = new Map();
  dart.hotRestartIteration = 0;
  dart.addAsyncCallback = function() {
  };
  dart.removeAsyncCallback = function() {
  };
  dart.defineProperty = Object.defineProperty;
  dart.defineAccessor = Object.defineProperty;
  dart.getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
  dart.getOwnPropertyNames = Object.getOwnPropertyNames;
  dart.getOwnPropertySymbols = Object.getOwnPropertySymbols;
  dart.getPrototypeOf = Object.getPrototypeOf;
  dart._mixin = Symbol("mixin");
  dart.mixinOn = Symbol("mixinOn");
  dart._typeArguments = Symbol("typeArguments");
  dart._originalDeclaration = Symbol("originalDeclaration");
  dart.mixinNew = Symbol("dart.mixinNew");
  dart._constructorSig = Symbol("sigCtor");
  dart._methodSig = Symbol("sigMethod");
  dart._methodsDefaultTypeArgSig = Symbol("sigMethodDefaultTypeArgs");
  dart._fieldSig = Symbol("sigField");
  dart._getterSig = Symbol("sigGetter");
  dart._setterSig = Symbol("sigSetter");
  dart._staticMethodSig = Symbol("sigStaticMethod");
  dart._staticFieldSig = Symbol("sigStaticField");
  dart._staticGetterSig = Symbol("sigStaticGetter");
  dart._staticSetterSig = Symbol("sigStaticSetter");
  dart._genericTypeCtor = Symbol("genericType");
  dart._libraryUri = Symbol("libraryUri");
  dart._extensionType = Symbol("extensionType");
  dart.dartx = dartx;
  dart._extensionMap = new Map();
  dart._typeTagSymbols = new Map();
  dart.identityEquals = null;
  dart._runtimeType = Symbol("_runtimeType");
  dart._moduleName = Symbol("_moduleName");
  dart._loadedModules = new Map();
  dart._loadedPartMaps = new Map();
  dart._loadedSourceMaps = new Map();
  dart._libraries = null;
  dart._libraryObjects = null;
  dart._parts = null;
  dart.extraNullSafetyChecks = false;
  dart._weakNullSafetyWarnings = false;
  dart._weakNullSafetyErrors = false;
  dart._nonNullAsserts = false;
  dart._jsInteropNonNullAsserts = false;
  dart._functionRti = Symbol("$signatureRti");
  dart._nullComparisonSet = new Set();
  dart.shapeProperty = Symbol("shape");
  dart.valuesProperty = Symbol("values");
  dart.shapes = new Map();
  dart._records = new Map();
  dart._nullFailedSet = new Set();
  dart._thrownValue = Symbol("_thrownValue");
  dart._jsError = Symbol("_jsError");
  dart._stackTrace = Symbol("_stackTrace");
  dart.DartError = class DartError extends Error {
    constructor(error) {
      super();
      if (error == null) error = new _js_helper.TypeErrorImpl.new("Throw of null.");
      this[dart._thrownValue] = error;
      if (error != null && typeof error == "object" && error[dart._jsError] == null) {
        error[dart._jsError] = this;
      }
    }
    get message() {
      return dart.toString(this[dart._thrownValue]);
    }
  };
  dart.RethrownDartError = class RethrownDartError extends dart.DartError {
    constructor(error, stackTrace) {
      super(error);
      this[dart._stackTrace] = stackTrace;
    }
    get message() {
      return super.message + "\n    " + dart.toString(this[dart._stackTrace]) + "\n";
    }
  };
  dart.constantMaps = new Map();
  dart.constantSets = new Map();
  dart._immutableSetConstructor = null;
  dart._value = Symbol("_value");
  dart.constants = new Map();
  dart.constantLists = new Map();
  dart.identityHashCode_ = Symbol("_identityHashCode");
  dart.JsIterator = class JsIterator {
    constructor(dartIterator) {
      this.dartIterator = dartIterator;
    }
    next() {
      let i = this.dartIterator;
      let done = !i.moveNext();
      return {done: done, value: done ? void 0 : i.current};
    }
  };
  dart._ddcDeferredLoading = false;
  dart._ddcNewLoadLibraryTiming = false;
  dart.deferredImports = new Map();
  dart.defineLazy(dart, {
    /*dart.legacyTypeChecks*/get legacyTypeChecks() {
      return true;
    },
    set legacyTypeChecks(value) {},
    /*dart._nativeNonNullAsserts*/get _nativeNonNullAsserts() {
      return false;
    },
    set _nativeNonNullAsserts(value) {},
    /*dart._assertInteropExpando*/get _assertInteropExpando() {
      return new (G.ExpandoOfFunction()).new();
    },
    set _assertInteropExpando(value) {
      if (value == null) dart.nullFailed(I[7], 162, 19, "_assertInteropExpando");
    }
  }, false);
  var positionals$ = dart.privateName(dart, "Shape.positionals");
  var named$ = dart.privateName(dart, "Shape.named");
  var SentinelValue_id = dart.privateName(_internal, "SentinelValue.id");
  core.Object = class Object {
    constructor() {
      throw Error("use `new " + dart.typeName(dart.getReifiedType(this)) + ".new(...)` to create a Dart object");
    }
    static ['_#new#tearOff']() {
      return new core.Object.new();
    }
    _equals(other) {
      if (other == null) return false;
      return this === other;
    }
    get hashCode() {
      return core.identityHashCode(this);
    }
    toString() {
      return "Instance of '" + dart.typeName(dart.getReifiedType(this)) + "'";
    }
    noSuchMethod(invocation) {
      if (invocation == null) dart.nullFailed(I[9], 62, 35, "invocation");
      dart.defaultNoSuchMethod(this, invocation);
      return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
    }
    get runtimeType() {
      return dart_rti.createRuntimeType(dart.getReifiedType(this));
    }
    static hash(object1, object2, object3 = C[0] || CT.C0, object4 = C[0] || CT.C0, object5 = C[0] || CT.C0, object6 = C[0] || CT.C0, object7 = C[0] || CT.C0, object8 = C[0] || CT.C0, object9 = C[0] || CT.C0, object10 = C[0] || CT.C0, object11 = C[0] || CT.C0, object12 = C[0] || CT.C0, object13 = C[0] || CT.C0, object14 = C[0] || CT.C0, object15 = C[0] || CT.C0, object16 = C[0] || CT.C0, object17 = C[0] || CT.C0, object18 = C[0] || CT.C0, object19 = C[0] || CT.C0, object20 = C[0] || CT.C0) {
      if (dart.equals(_internal.sentinelValue, object3)) {
        return _internal.SystemHash.hash2(dart.hashCode(object1), dart.hashCode(object2), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object4)) {
        return _internal.SystemHash.hash3(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object5)) {
        return _internal.SystemHash.hash4(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object6)) {
        return _internal.SystemHash.hash5(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object7)) {
        return _internal.SystemHash.hash6(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object8)) {
        return _internal.SystemHash.hash7(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object9)) {
        return _internal.SystemHash.hash8(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object10)) {
        return _internal.SystemHash.hash9(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object11)) {
        return _internal.SystemHash.hash10(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object12)) {
        return _internal.SystemHash.hash11(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object13)) {
        return _internal.SystemHash.hash12(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), dart.hashCode(object12), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object14)) {
        return _internal.SystemHash.hash13(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), dart.hashCode(object12), dart.hashCode(object13), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object15)) {
        return _internal.SystemHash.hash14(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), dart.hashCode(object12), dart.hashCode(object13), dart.hashCode(object14), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object16)) {
        return _internal.SystemHash.hash15(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), dart.hashCode(object12), dart.hashCode(object13), dart.hashCode(object14), dart.hashCode(object15), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object17)) {
        return _internal.SystemHash.hash16(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), dart.hashCode(object12), dart.hashCode(object13), dart.hashCode(object14), dart.hashCode(object15), dart.hashCode(object16), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object18)) {
        return _internal.SystemHash.hash17(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), dart.hashCode(object12), dart.hashCode(object13), dart.hashCode(object14), dart.hashCode(object15), dart.hashCode(object16), dart.hashCode(object17), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object19)) {
        return _internal.SystemHash.hash18(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), dart.hashCode(object12), dart.hashCode(object13), dart.hashCode(object14), dart.hashCode(object15), dart.hashCode(object16), dart.hashCode(object17), dart.hashCode(object18), core._hashSeed);
      }
      if (dart.equals(_internal.sentinelValue, object20)) {
        return _internal.SystemHash.hash19(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), dart.hashCode(object12), dart.hashCode(object13), dart.hashCode(object14), dart.hashCode(object15), dart.hashCode(object16), dart.hashCode(object17), dart.hashCode(object18), dart.hashCode(object19), core._hashSeed);
      }
      return _internal.SystemHash.hash20(dart.hashCode(object1), dart.hashCode(object2), dart.hashCode(object3), dart.hashCode(object4), dart.hashCode(object5), dart.hashCode(object6), dart.hashCode(object7), dart.hashCode(object8), dart.hashCode(object9), dart.hashCode(object10), dart.hashCode(object11), dart.hashCode(object12), dart.hashCode(object13), dart.hashCode(object14), dart.hashCode(object15), dart.hashCode(object16), dart.hashCode(object17), dart.hashCode(object18), dart.hashCode(object19), dart.hashCode(object20), core._hashSeed);
    }
    static hashAll(objects) {
      if (objects == null) dart.nullFailed(I[10], 512, 40, "objects");
      let hash = core._hashSeed;
      for (let object of objects) {
        hash = _internal.SystemHash.combine(hash, dart.hashCode(object));
      }
      return _internal.SystemHash.finish(hash);
    }
    static hashAllUnordered(objects) {
      if (objects == null) dart.nullFailed(I[10], 550, 49, "objects");
      let sum = 0;
      let count = 0;
      for (let object of objects) {
        let objectHash = _internal.SystemHash.smear(dart.hashCode(object));
        sum = (sum + dart.notNull(objectHash) & 1073741823) >>> 0;
        count = count + 1;
      }
      return _internal.SystemHash.hash2(sum, count, 0);
    }
  };
  (core.Object.new = function() {
    ;
  }).prototype = core.Object.prototype;
  dart.addRtiResources(core.Object, ["core|Object"]);
  dart.setMethodSignature(core.Object, () => dart.global.Object.setPrototypeOf({
    _equals: T$.ObjectTobool(),
    [$_equals]: T$.ObjectTobool(),
    toString: T$.VoidToString(),
    [$toString]: T$.VoidToString(),
    noSuchMethod: T$.InvocationTodynamic(),
    [$noSuchMethod]: T$.InvocationTodynamic()
  }, Object.create(null)));
  dart.setStaticMethodSignature(core.Object, () => ['hash', 'hashAll', 'hashAllUnordered']);
  dart.setGetterSignature(core.Object, () => dart.global.Object.setPrototypeOf({
    hashCode: T$.int(),
    [$hashCode]: T$.int(),
    runtimeType: T$.Type(),
    [$runtimeType]: T$.Type()
  }, Object.create(null)));
  dart.setLibraryUri(core.Object, I[11]);
  dart.defineExtensionMethods(core.Object, ['_equals', 'toString', 'noSuchMethod']);
  dart.defineExtensionAccessors(core.Object, ['hashCode', 'runtimeType']);
  dart._installIdentityEquals();
  dart.Shape = class Shape extends core.Object {
    get positionals() {
      return this[positionals$];
    }
    set positionals(value) {
      super.positionals = value;
    }
    get named() {
      return this[named$];
    }
    set named(value) {
      super.named = value;
    }
    static ['_#new#tearOff'](positionals, named) {
      if (positionals == null) dart.nullFailed(I[4], 15, 14, "positionals");
      return new dart.Shape.new(positionals, named);
    }
    toString() {
      let t$366;
      return "Shape(" + dart.strSafe(this.positionals) + ", [" + dart.str((t$366 = this.named, t$366 == null ? null : t$366[$join](", "))) + "])";
    }
  };
  (dart.Shape.new = function(positionals, named) {
    if (positionals == null) dart.nullFailed(I[4], 15, 14, "positionals");
    this[positionals$] = positionals;
    this[named$] = named;
    ;
  }).prototype = dart.Shape.prototype;
  dart.addRtiResources(dart.Shape, ["_runtime|Shape"]);
  dart.setLibraryUri(dart.Shape, I[12]);
  dart.setFieldSignature(dart.Shape, () => dart.global.Object.setPrototypeOf({
    positionals: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    named: {type: T$.ListNOfString(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(dart.Shape))));
  dart.defineExtensionMethods(dart.Shape, ['toString']);
  var _hashCode = dart.privateName(dart, "_hashCode");
  var _printed = dart.privateName(dart, "_printed");
  dart.RecordImpl = class RecordImpl extends core.Object {
    static ['_#new#tearOff'](shape, values) {
      if (shape == null) dart.nullFailed(I[4], 40, 20, "shape");
      if (values == null) dart.nullFailed(I[4], 40, 35, "values");
      return new dart.RecordImpl.new(shape, values);
    }
    _equals(other) {
      if (other == null) return false;
      if (!T$.RecordImpl()[_is](other)) return false;
      if (this[dart.shapeProperty] !== other[dart.shapeProperty]) return false;
      let values = this[dart.valuesProperty];
      let otherValues = other[dart.valuesProperty];
      for (let i = 0; i < values[$length]; i = i + 1) {
        if (!dart.equals(values[$_get](i), otherValues[$_get](i))) {
          return false;
        }
      }
      return true;
    }
    get hashCode() {
      let cachedValue = this[_hashCode];
      if (cachedValue != null) return cachedValue;
      let shape = this[dart.shapeProperty];
      let values = this[dart.valuesProperty];
      return this[_hashCode] = core.Object.hashAll((() => {
        let t$366 = G.JSArrayOfObjectN().of([shape]);
        t$366[$addAll](values);
        return t$366;
      })());
    }
    toString() {
      return this[_toString](false);
    }
    [_toString](safe) {
      if (safe == null) dart.nullFailed(I[4], 90, 25, "safe");
      let cachedValue = this[_printed];
      if (!safe && cachedValue != null) return cachedValue;
      let buffer = new core.StringBuffer.new();
      let shape = this[dart.shapeProperty];
      let values = this[dart.valuesProperty];
      let posCount = shape.positionals;
      let count = values[$length];
      if (safe) buffer.write("Record ");
      buffer.write("(");
      for (let i = 0; i < count; i = i + 1) {
        if (i >= posCount) {
          buffer.write(dart.nullCheck(shape.named)[$_get](i - posCount));
          buffer.write(": ");
        }
        let value = values[$_get](i);
        buffer.write(safe ? _js_helper.Primitives.safeToString(value) : dart.str(value));
        if (i < count - 1) buffer.write(", ");
      }
      buffer.write(")");
      let result = dart.toString(buffer);
      if (!safe) this[_printed] = result;
      return result;
    }
  };
  (dart.RecordImpl.new = function(shape, values) {
    if (shape == null) dart.nullFailed(I[4], 40, 20, "shape");
    if (values == null) dart.nullFailed(I[4], 40, 35, "values");
    this[_hashCode] = null;
    this[_printed] = null;
    for (let i = 0; i < values[$length]; i = i + 1) {
      if (values[i] === void 0) {
        values[i] = null;
      }
    }
    this[dart.shapeProperty] = shape;
    this[dart.valuesProperty] = values;
  }).prototype = dart.RecordImpl.prototype;
  dart.addRtiResources(dart.RecordImpl, ["_runtime|RecordImpl", "core|Record"]);
  dart.setMethodSignature(dart.RecordImpl, () => dart.global.Object.setPrototypeOf({
    _equals: T$.ObjectNTobool(),
    [$_equals]: T$.ObjectNTobool(),
    [_toString]: T$.boolToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(dart.RecordImpl))));
  dart.setLibraryUri(dart.RecordImpl, I[12]);
  dart.setFieldSignature(dart.RecordImpl, () => dart.global.Object.setPrototypeOf({
    [_hashCode]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_printed]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(dart.RecordImpl))));
  dart.defineExtensionMethods(dart.RecordImpl, ['_equals', 'toString']);
  dart.defineExtensionAccessors(dart.RecordImpl, ['hashCode']);
  core.Error = class Error extends core.Object {
    static ['_#new#tearOff']() {
      return new core.Error.new();
    }
    static safeToString(object) {
      if (typeof object == 'number' || typeof object == 'boolean' || object == null) {
        return dart.toString(object);
      }
      if (typeof object == 'string') {
        return core.Error._stringToSafeString(object);
      }
      return core.Error._objectToString(object);
    }
    static _stringToSafeString(string) {
      if (string == null) dart.nullFailed(I[9], 256, 44, "string");
      return _js_helper.Primitives.stringSafeToString(string);
    }
    static _objectToString(object) {
      if (object == null) dart.nullFailed(I[9], 251, 40, "object");
      return _js_helper.Primitives.safeToString(object);
    }
    get stackTrace() {
      return dart.stackTraceForError(this);
    }
    static throwWithStackTrace(error, stackTrace) {
      if (error == null) dart.nullFailed(I[13], 117, 43, "error");
      if (stackTrace == null) dart.nullFailed(I[13], 117, 61, "stackTrace");
      _internal.checkNotNullable(T$.Object(), error, "error");
      _internal.checkNotNullable(T$.StackTrace(), stackTrace, "stackTrace");
      core.Error._throw(error, stackTrace);
      dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
    }
    static _throw(error, stackTrace) {
      if (error == null) dart.nullFailed(I[9], 264, 30, "error");
      if (stackTrace == null) dart.nullFailed(I[9], 264, 48, "stackTrace");
      throw dart.createErrorWithStack(error, stackTrace);
      dart.throw("unreachable");
    }
  };
  (core.Error.new = function() {
    ;
  }).prototype = core.Error.prototype;
  dart.addRtiResources(core.Error, ["core|Error"]);
  dart.setStaticMethodSignature(core.Error, () => ['safeToString', '_stringToSafeString', '_objectToString', 'throwWithStackTrace', '_throw']);
  dart.setGetterSignature(core.Error, () => dart.global.Object.setPrototypeOf({
    stackTrace: T$.StackTraceN(),
    [$stackTrace]: T$.StackTraceN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.Error))));
  dart.setLibraryUri(core.Error, I[11]);
  dart.defineExtensionAccessors(core.Error, ['stackTrace']);
  dart._CyclicInitializationError = class _CyclicInitializationError extends core.Error {
    static ['_#new#tearOff'](variableName = null) {
      return new dart._CyclicInitializationError.new(variableName);
    }
    toString() {
      let variableName = this.variableName;
      return variableName == null ? "Reading static variable during its initialization" : "Reading static variable '" + dart.str(variableName) + "' during its initialization";
    }
  };
  (dart._CyclicInitializationError.new = function(variableName = null) {
    this.variableName = variableName;
    dart.global.Object.getPrototypeOf(dart._CyclicInitializationError).new.call(this);
    ;
  }).prototype = dart._CyclicInitializationError.prototype;
  dart.addRtiResources(dart._CyclicInitializationError, ["_runtime|_CyclicInitializationError"]);
  dart.setLibraryUri(dart._CyclicInitializationError, I[12]);
  dart.setFieldSignature(dart._CyclicInitializationError, () => dart.global.Object.setPrototypeOf({variableName: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(dart._CyclicInitializationError))));
  dart.defineExtensionMethods(dart._CyclicInitializationError, ['toString']);
  var _trace = dart.privateName(dart, "_trace");
  var _jsObjectMissingTrace = dart.privateName(dart, "_jsObjectMissingTrace");
  dart._StackTrace = class _StackTrace extends core.Object {
    static ['_#new#tearOff'](_jsError) {
      return new dart._StackTrace.new(_jsError);
    }
    static ['_#missing#tearOff'](caughtObj) {
      return new dart._StackTrace.missing(caughtObj);
    }
    toString() {
      if (this[_trace] != null) return dart.nullCheck(this[_trace]);
      let e = this[_jsError$];
      let trace = "";
      if (e != null && typeof e === "object") {
        trace = T$.NativeError()[_is](e) ? e[$dartStack]() : e.stack;
        let mapper = _debugger.stackTraceMapper;
        if (trace != null && mapper != null) {
          trace = mapper(trace);
        }
      }
      if (trace[$isEmpty] || this[_jsObjectMissingTrace] != null) {
        let jsToString = null;
        try {
          jsToString = "" + this[_jsObjectMissingTrace];
        } catch (t$36$35e) {
          let _ = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](_)) {
            jsToString = "<error converting JS object to string>";
          } else
            throw t$36$35e;
        }
        trace = "Non-error `" + dart.str(jsToString) + "` thrown by JS does not have stack trace." + "\nCaught in Dart at:\n\n" + dart.str(trace);
      }
      return this[_trace] = trace;
    }
  };
  (dart._StackTrace.new = function(_jsError) {
    this[_trace] = null;
    this[_jsError$] = _jsError;
    this[_jsObjectMissingTrace] = null;
    ;
  }).prototype = dart._StackTrace.prototype;
  (dart._StackTrace.missing = function(caughtObj) {
    this[_trace] = null;
    this[_jsObjectMissingTrace] = caughtObj != null ? caughtObj : "null";
    this[_jsError$] = Error();
    ;
  }).prototype = dart._StackTrace.prototype;
  dart.addRtiResources(dart._StackTrace, ["_runtime|_StackTrace", "core|StackTrace"]);
  dart.setLibraryUri(dart._StackTrace, I[12]);
  dart.setFieldSignature(dart._StackTrace, () => dart.global.Object.setPrototypeOf({
    [_jsError$]: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_jsObjectMissingTrace]: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_trace]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(dart._StackTrace))));
  dart.defineExtensionMethods(dart._StackTrace, ['toString']);
  var memberName$ = dart.privateName(dart, "InvocationImpl.memberName");
  var positionalArguments$ = dart.privateName(dart, "InvocationImpl.positionalArguments");
  var namedArguments$ = dart.privateName(dart, "InvocationImpl.namedArguments");
  var typeArguments$ = dart.privateName(dart, "InvocationImpl.typeArguments");
  var isMethod$ = dart.privateName(dart, "InvocationImpl.isMethod");
  var isGetter$ = dart.privateName(dart, "InvocationImpl.isGetter");
  var isSetter$ = dart.privateName(dart, "InvocationImpl.isSetter");
  var failureMessage$ = dart.privateName(dart, "InvocationImpl.failureMessage");
  let const$;
  let const$0;
  core.Invocation = class Invocation extends core.Object {
    static method(memberName, positionalArguments, namedArguments = null) {
      if (memberName == null) dart.nullFailed(I[14], 21, 18, "memberName");
      return new core._Invocation.method(memberName, null, positionalArguments, namedArguments);
    }
    static ['_#method#tearOff'](memberName, positionalArguments, namedArguments = null) {
      if (memberName == null) dart.nullFailed(I[14], 21, 18, "memberName");
      return core.Invocation.method(memberName, positionalArguments, namedArguments);
    }
    static genericMethod(memberName, typeArguments, positionalArguments, namedArguments = null) {
      if (memberName == null) dart.nullFailed(I[14], 33, 43, "memberName");
      return new core._Invocation.method(memberName, typeArguments, positionalArguments, namedArguments);
    }
    static ['_#genericMethod#tearOff'](memberName, typeArguments, positionalArguments, namedArguments = null) {
      if (memberName == null) dart.nullFailed(I[14], 33, 43, "memberName");
      return core.Invocation.genericMethod(memberName, typeArguments, positionalArguments, namedArguments);
    }
    static ['_#getter#tearOff'](name) {
      if (name == null) dart.nullFailed(I[14], 41, 36, "name");
      return new core._Invocation.getter(name);
    }
    static ['_#setter#tearOff'](memberName, argument) {
      if (memberName == null) dart.nullFailed(I[14], 52, 36, "memberName");
      return new core._Invocation.setter(memberName, argument);
    }
    get typeArguments() {
      return C[1] || CT.C1;
    }
    get isAccessor() {
      return dart.test(this.isGetter) || dart.test(this.isSetter);
    }
  };
  (core.Invocation.new = function() {
    ;
  }).prototype = core.Invocation.prototype;
  dart.addRtiResources(core.Invocation, ["core|Invocation"]);
  dart.setStaticMethodSignature(core.Invocation, () => ['method', 'genericMethod', 'getter', 'setter']);
  dart.setGetterSignature(core.Invocation, () => dart.global.Object.setPrototypeOf({
    typeArguments: T$.ListOfType(),
    isAccessor: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.Invocation))));
  dart.setLibraryUri(core.Invocation, I[11]);
  dart.defineLazy(CT, {
    get C0() {
      return C[0] = dart.const(Object.setPrototypeOf({
        [SentinelValue_id]: 0
      }, _internal.SentinelValue.prototype));
    },
    get C1() {
      return C[1] = dart.constList([], T$.TypeL());
    },
    get C3() {
      return C[3] = dart.const(Object.setPrototypeOf({
        [_name$0]: "GETTER_PREFIX",
        [index$]: 0
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C4() {
      return C[4] = dart.const(Object.setPrototypeOf({
        [_name$0]: "SETTER_PREFIX",
        [index$]: 1
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C5() {
      return C[5] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CALL_PREFIX",
        [index$]: 2
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C6() {
      return C[6] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CALL_PREFIX0",
        [index$]: 3
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C7() {
      return C[7] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CALL_PREFIX1",
        [index$]: 4
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C8() {
      return C[8] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CALL_PREFIX2",
        [index$]: 5
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C9() {
      return C[9] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CALL_PREFIX3",
        [index$]: 6
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C10() {
      return C[10] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CALL_PREFIX4",
        [index$]: 7
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C11() {
      return C[11] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CALL_PREFIX5",
        [index$]: 8
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C12() {
      return C[12] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CALL_CATCH_ALL",
        [index$]: 9
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C13() {
      return C[13] = dart.const(Object.setPrototypeOf({
        [_name$0]: "REQUIRED_PARAMETER_PROPERTY",
        [index$]: 10
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C14() {
      return C[14] = dart.const(Object.setPrototypeOf({
        [_name$0]: "DEFAULT_VALUES_PROPERTY",
        [index$]: 11
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C15() {
      return C[15] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CALL_NAME_PROPERTY",
        [index$]: 12
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C16() {
      return C[16] = dart.const(Object.setPrototypeOf({
        [_name$0]: "DEFERRED_ACTION_PROPERTY",
        [index$]: 13
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C17() {
      return C[17] = dart.const(Object.setPrototypeOf({
        [_name$0]: "OPERATOR_IS_PREFIX",
        [index$]: 14
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C18() {
      return C[18] = dart.const(Object.setPrototypeOf({
        [_name$0]: "SIGNATURE_NAME",
        [index$]: 15
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C19() {
      return C[19] = dart.const(Object.setPrototypeOf({
        [_name$0]: "RTI_NAME",
        [index$]: 16
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C20() {
      return C[20] = dart.const(Object.setPrototypeOf({
        [_name$0]: "FUTURE_CLASS_TYPE_NAME",
        [index$]: 17
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C21() {
      return C[21] = dart.const(Object.setPrototypeOf({
        [_name$0]: "IS_INDEXABLE_FIELD_NAME",
        [index$]: 18
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C22() {
      return C[22] = dart.const(Object.setPrototypeOf({
        [_name$0]: "NULL_CLASS_TYPE_NAME",
        [index$]: 19
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C23() {
      return C[23] = dart.const(Object.setPrototypeOf({
        [_name$0]: "OBJECT_CLASS_TYPE_NAME",
        [index$]: 20
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C24() {
      return C[24] = dart.const(Object.setPrototypeOf({
        [_name$0]: "LIST_CLASS_TYPE_NAME",
        [index$]: 21
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C25() {
      return C[25] = dart.const(Object.setPrototypeOf({
        [_name$0]: "RTI_FIELD_AS",
        [index$]: 22
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C26() {
      return C[26] = dart.const(Object.setPrototypeOf({
        [_name$0]: "RTI_FIELD_IS",
        [index$]: 23
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C27() {
      return C[27] = dart.const(Object.setPrototypeOf({
        [_name$0]: "RECORD_SHAPE_TAG_PROPERTY",
        [index$]: 24
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C28() {
      return C[28] = dart.const(Object.setPrototypeOf({
        [_name$0]: "RECORD_SHAPE_TYPE_PROPERTY",
        [index$]: 25
      }, _js_shared_embedded_names.JsGetName.prototype));
    },
    get C2() {
      return C[2] = dart.constList([C[3] || CT.C3, C[4] || CT.C4, C[5] || CT.C5, C[6] || CT.C6, C[7] || CT.C7, C[8] || CT.C8, C[9] || CT.C9, C[10] || CT.C10, C[11] || CT.C11, C[12] || CT.C12, C[13] || CT.C13, C[14] || CT.C14, C[15] || CT.C15, C[16] || CT.C16, C[17] || CT.C17, C[18] || CT.C18, C[19] || CT.C19, C[20] || CT.C20, C[21] || CT.C21, C[22] || CT.C22, C[23] || CT.C23, C[24] || CT.C24, C[25] || CT.C25, C[26] || CT.C26, C[27] || CT.C27, C[28] || CT.C28], T$.JsGetNameL());
    },
    get C30() {
      return C[30] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dartObjectConstructor",
        [index$]: 0
      }, _js_shared_embedded_names.JsBuiltin.prototype));
    },
    get C31() {
      return C[31] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dartClosureConstructor",
        [index$]: 1
      }, _js_shared_embedded_names.JsBuiltin.prototype));
    },
    get C32() {
      return C[32] = dart.const(Object.setPrototypeOf({
        [_name$0]: "isJsInteropTypeArgument",
        [index$]: 2
      }, _js_shared_embedded_names.JsBuiltin.prototype));
    },
    get C33() {
      return C[33] = dart.const(Object.setPrototypeOf({
        [_name$0]: "getMetadata",
        [index$]: 3
      }, _js_shared_embedded_names.JsBuiltin.prototype));
    },
    get C34() {
      return C[34] = dart.const(Object.setPrototypeOf({
        [_name$0]: "getType",
        [index$]: 4
      }, _js_shared_embedded_names.JsBuiltin.prototype));
    },
    get C29() {
      return C[29] = dart.constList([C[30] || CT.C30, C[31] || CT.C31, C[32] || CT.C32, C[33] || CT.C33, C[34] || CT.C34], T$.JsBuiltinL());
    },
    get C35() {
      return C[35] = dart.const(Object.setPrototypeOf({
        [name$]: "none"
      }, _debugger.JsonMLConfig.prototype));
    },
    get C36() {
      return C[36] = dart.const(Object.setPrototypeOf({
        [name$]: "skipDart"
      }, _debugger.JsonMLConfig.prototype));
    },
    get C37() {
      return C[37] = dart.const(Object.setPrototypeOf({
        [name$]: "keyToString"
      }, _debugger.JsonMLConfig.prototype));
    },
    get C38() {
      return C[38] = dart.const(Object.setPrototypeOf({
        [name$]: "asClass"
      }, _debugger.JsonMLConfig.prototype));
    },
    get C39() {
      return C[39] = dart.const(Object.setPrototypeOf({
        [name$]: "asObject"
      }, _debugger.JsonMLConfig.prototype));
    },
    get C40() {
      return C[40] = dart.const(Object.setPrototypeOf({
        [name$]: "asMap"
      }, _debugger.JsonMLConfig.prototype));
    },
    get C41() {
      return C[41] = dart.fn(_debugger.getTypeName, T$.dynamicToString());
    },
    get C42() {
      return C[42] = dart.const(Object.setPrototypeOf({
      }, _foreign_helper._Rest.prototype));
    },
    get C43() {
      return C[43] = dart.const(new _js_helper.PrivateSymbol.new('_receiver', _receiver));
    },
    get C44() {
      return C[44] = dart.const(new _js_helper.PrivateSymbol.new('_memberName', _memberName));
    },
    get C45() {
      return C[45] = dart.const(new _js_helper.PrivateSymbol.new('_arguments', _arguments));
    },
    get C46() {
      return C[46] = dart.const(new _js_helper.PrivateSymbol.new('_namedArguments', _namedArguments));
    },
    get C47() {
      return C[47] = dart.const(new _js_helper.PrivateSymbol.new('_invocation', _invocation));
    },
    get C48() {
      return C[48] = dart.const(new _js_helper.PrivateSymbol.new('_hasValue', _hasValue));
    },
    get C49() {
      return C[49] = dart.const(new _js_helper.PrivateSymbol.new('_errorName', _errorName));
    },
    get C50() {
      return C[50] = dart.const(new _js_helper.PrivateSymbol.new('_errorExplanation', _errorExplanation));
    },
    get C51() {
      return C[51] = dart.const(Object.setPrototypeOf({
      }, core.OutOfMemoryError.prototype));
    },
    get C52() {
      return C[52] = dart.fn(collection.ListBase._compareAny, T$.dynamicAnddynamicToint());
    },
    get C53() {
      return C[53] = dart.fn(core._GeneratorIterable._id, T$.intToint());
    },
    get C54() {
      return C[54] = dart.fn(collection.MapBase._id, T$.ObjectNToObjectN());
    },
    get C55() {
      return C[55] = dart.const(Object.setPrototypeOf({
        $ti: T$0.EmptyIteratorOfNeverL()
      }, G.EmptyIteratorOfNeverL().prototype));
    },
    get C56() {
      return C[56] = dart.constList([1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000, 10000000000.0, 100000000000.0, 1000000000000.0, 10000000000000.0, 100000000000000.0, 1000000000000000.0, 10000000000000000.0, 100000000000000000.0, 1000000000000000000.0, 10000000000000000000.0, 100000000000000000000.0, 1e+21, 1e+22], T$0.doubleL());
    },
    get C57() {
      return C[57] = dart.const(Object.setPrototypeOf({
        [pragma_options]: null,
        [pragma_name]: "vm:isolate-unsendable"
      }, core.pragma.prototype));
    },
    get C58() {
      return C[58] = dart.const(Object.setPrototypeOf({
      }, _internal._Patch.prototype));
    },
    get C59() {
      return C[59] = dart.const(Object.setPrototypeOf({
      }, _js_annotations._Anonymous.prototype));
    },
    get C60() {
      return C[60] = dart.const(Object.setPrototypeOf({
      }, _js_annotations._StaticInterop.prototype));
    },
    get C61() {
      return C[61] = dart.const(Object.setPrototypeOf({
      }, _js_annotations._TrustTypes.prototype));
    },
    get C62() {
      return C[62] = dart.fn(_js_helper.Primitives.dateNow, T$.VoidToint());
    },
    get C63() {
      return C[63] = dart.const(new _js_helper.PrivateSymbol.new('_receiver', _receiver$1));
    },
    get C64() {
      return C[64] = dart.const(new _js_helper.PrivateSymbol.new('_memberName', _memberName$0));
    },
    get C65() {
      return C[65] = dart.const(new _js_helper.PrivateSymbol.new('_arguments', _arguments$0));
    },
    get C66() {
      return C[66] = dart.const(new _js_helper.PrivateSymbol.new('_namedArguments', _namedArguments$0));
    },
    get C67() {
      return C[67] = dart.const(new _js_helper.PrivateSymbol.new('_invocation', _invocation$0));
    },
    get C68() {
      return C[68] = dart.applyExtensionForTesting;
    },
    get C69() {
      return C[69] = dart.fn(_js_helper.assertInterop, T$.ObjectNTovoid());
    },
    get C70() {
      return C[70] = dart.fn(_js_helper._matchString, T$0.MatchToString());
    },
    get C71() {
      return C[71] = dart.fn(_js_helper._stringIdentity, T$.StringToString());
    },
    get C72() {
      return C[72] = dart.const(Object.setPrototypeOf({
      }, _js_helper._NotNull.prototype));
    },
    get C73() {
      return C[73] = dart.const(Object.setPrototypeOf({
      }, _js_helper._Undefined.prototype));
    },
    get C74() {
      return C[74] = dart.const(Object.setPrototypeOf({
      }, _js_helper._NullCheck.prototype));
    },
    get C75() {
      return C[75] = dart.const(Object.setPrototypeOf({
        [Endian__littleEndian]: false
      }, typed_data.Endian.prototype));
    },
    get C76() {
      return C[76] = dart.fn(async._nullDataHandler, T$.dynamicTovoid());
    },
    get C77() {
      return C[77] = dart.fn(async._nullErrorHandler, T$.ObjectAndStackTraceTovoid());
    },
    get C78() {
      return C[78] = dart.fn(async._nullDoneHandler, T$.VoidTovoid());
    },
    get C79() {
      return C[79] = dart.const(Object.setPrototypeOf({
      }, async._DelayedDone.prototype));
    },
    get C80() {
      return C[80] = dart.fn(async.Future._kTrue, T$.ObjectNTobool());
    },
    get C81() {
      return C[81] = dart.fn(async._FutureResult._noop, T$.dynamicTovoid());
    },
    get C82() {
      return C[82] = async._AsyncRun._scheduleImmediateJSOverride;
    },
    get C83() {
      return C[83] = async._AsyncRun._scheduleImmediateWithPromise;
    },
    get C84() {
      return C[84] = dart.const(Object.setPrototypeOf({
      }, async._RootZone.prototype));
    },
    get C86() {
      return C[86] = dart.gFn(async._rootRun, T$1.ZoneNAndZoneDelegateNAndZone__ToR(), dart.constList([T$.dynamic()], T$.dynamic()));
    },
    get C85() {
      return C[85] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL(),
        [$function$]: C[86] || CT.C86,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL().prototype));
    },
    get C88() {
      return C[88] = dart.gFn(async._rootRunUnary, T$1.ZoneNAndZoneDelegateNAndZone__ToR$1(), dart.constList([T$.dynamic(), T$.dynamic()], T$.dynamic()));
    },
    get C87() {
      return C[87] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$1(),
        [$function$]: C[88] || CT.C88,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$1().prototype));
    },
    get C90() {
      return C[90] = dart.gFn(async._rootRunBinary, T$1.ZoneNAndZoneDelegateNAndZone__ToR$2(), dart.constList([T$.dynamic(), T$.dynamic(), T$.dynamic()], T$.dynamic()));
    },
    get C89() {
      return C[89] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$2(),
        [$function$]: C[90] || CT.C90,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLRL$2().prototype));
    },
    get C92() {
      return C[92] = dart.gFn(async._rootRegisterCallback, T$1.ZoneAndZoneDelegateAndZone__ToFn(), dart.constList([T$.dynamic()], T$.dynamic()));
    },
    get C91() {
      return C[91] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn(),
        [$function$]: C[92] || CT.C92,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn().prototype));
    },
    get C94() {
      return C[94] = dart.gFn(async._rootRegisterUnaryCallback, T$1.ZoneAndZoneDelegateAndZone__ToFn$1(), dart.constList([T$.dynamic(), T$.dynamic()], T$.dynamic()));
    },
    get C93() {
      return C[93] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$1(),
        [$function$]: C[94] || CT.C94,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$1().prototype));
    },
    get C96() {
      return C[96] = dart.gFn(async._rootRegisterBinaryCallback, T$1.ZoneAndZoneDelegateAndZone__ToFn$2(), dart.constList([T$.dynamic(), T$.dynamic(), T$.dynamic()], T$.dynamic()));
    },
    get C95() {
      return C[95] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$2(),
        [$function$]: C[96] || CT.C96,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLFn$2().prototype));
    },
    get C98() {
      return C[98] = dart.fn(async._rootErrorCallback, T$1.ZoneAndZoneDelegateAndZone__ToAsyncErrorN());
    },
    get C97() {
      return C[97] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLAsyncErrorN(),
        [$function$]: C[98] || CT.C98,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLAsyncErrorN().prototype));
    },
    get C100() {
      return C[100] = dart.fn(async._rootScheduleMicrotask, T$1.ZoneNAndZoneDelegateNAndZone__Tovoid());
    },
    get C99() {
      return C[99] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid(),
        [$function$]: C[100] || CT.C100,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid().prototype));
    },
    get C102() {
      return C[102] = dart.fn(async._rootCreateTimer, T$1.ZoneAndZoneDelegateAndZone__ToTimer());
    },
    get C101() {
      return C[101] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL(),
        [$function$]: C[102] || CT.C102,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL().prototype));
    },
    get C104() {
      return C[104] = dart.fn(async._rootCreatePeriodicTimer, T$1.ZoneAndZoneDelegateAndZone__ToTimer$1());
    },
    get C103() {
      return C[103] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL$1(),
        [$function$]: C[104] || CT.C104,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLTimerL$1().prototype));
    },
    get C106() {
      return C[106] = dart.fn(async._rootPrint, T$1.ZoneAndZoneDelegateAndZone__Tovoid$1());
    },
    get C105() {
      return C[105] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$1(),
        [$function$]: C[106] || CT.C106,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$1().prototype));
    },
    get C108() {
      return C[108] = dart.fn(async._rootFork, T$1.ZoneNAndZoneDelegateNAndZone__ToZone());
    },
    get C107() {
      return C[107] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLZoneL(),
        [$function$]: C[108] || CT.C108,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLZoneL().prototype));
    },
    get C110() {
      return C[110] = dart.fn(async._rootHandleUncaughtError, T$1.ZoneNAndZoneDelegateNAndZone__Tovoid$1());
    },
    get C109() {
      return C[109] = dart.const(Object.setPrototypeOf({
        $ti: T$1._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$2(),
        [$function$]: C[110] || CT.C110,
        [zone$]: C[84] || CT.C84
      }, G._ZoneFunctionOfZoneLAndZoneDelegateLAndZoneL__ToLvoid$2().prototype));
    },
    get C111() {
      return C[111] = dart.fn(async['FutureExtensions|_ignore'], T$1.ObjectNAndObjectNTovoid$1());
    },
    get C112() {
      return C[112] = dart.fn(async._notNull, T$.ObjectNTobool());
    },
    get C113() {
      return C[113] = dart.fn(async._startMicrotaskLoop, T$.VoidTovoid());
    },
    get C114() {
      return C[114] = dart.fn(async._printToZone, T$.StringTovoid());
    },
    get C115() {
      return C[115] = dart.const(Object.setPrototypeOf({
        [fork$]: null,
        [print$]: null,
        [createPeriodicTimer$]: null,
        [createTimer$]: null,
        [scheduleMicrotask$]: null,
        [errorCallback$]: null,
        [registerBinaryCallback$]: null,
        [registerUnaryCallback$]: null,
        [registerCallback$]: null,
        [runBinary$]: null,
        [runUnary$]: null,
        [run$]: null,
        [handleUncaughtError$]: null
      }, async._ZoneSpecification.prototype));
    },
    get C116() {
      return C[116] = dart.hashCode;
    },
    get C117() {
      return C[117] = dart.fn(core.identityHashCode, T$.ObjectNToint());
    },
    get C118() {
      return C[118] = dart.fn(core.identical, T$.ObjectNAndObjectNTobool());
    },
    get C119() {
      return C[119] = dart.equals;
    },
    get C120() {
      return C[120] = dart.const(new _js_helper.PrivateSymbol.new('_previousLink', _previousLink$1));
    },
    get C121() {
      return C[121] = dart.const(new _js_helper.PrivateSymbol.new('_previousLink=', _previousLink_));
    },
    get C122() {
      return C[122] = dart.const(new _js_helper.PrivateSymbol.new('_nextLink', _nextLink$1));
    },
    get C123() {
      return C[123] = dart.const(new _js_helper.PrivateSymbol.new('_nextLink=', _nextLink_));
    },
    get C124() {
      return C[124] = dart.const(new _js_helper.PrivateSymbol.new('_link', _link$));
    },
    get C125() {
      return C[125] = dart.fn(core.Comparable.compare, T$2.ComparableAndComparableToint());
    },
    get C126() {
      return C[126] = dart.fn(collection._dynamicCompare, T$.dynamicAnddynamicToint());
    },
    get C127() {
      return C[127] = dart.const(Object.setPrototypeOf({
        [_UnicodeSubsetDecoder__subsetMask]: 127,
        [_UnicodeSubsetDecoder__allowInvalid]: true
      }, convert.AsciiDecoder.prototype));
    },
    get C128() {
      return C[128] = dart.const(Object.setPrototypeOf({
        [_UnicodeSubsetDecoder__subsetMask]: 127,
        [_UnicodeSubsetDecoder__allowInvalid]: false
      }, convert.AsciiDecoder.prototype));
    },
    get C129() {
      return C[129] = dart.const(Object.setPrototypeOf({
        [_UnicodeSubsetEncoder__subsetMask]: 127
      }, convert.AsciiEncoder.prototype));
    },
    get C130() {
      return C[130] = dart.constList([239, 191, 189], T$2.intL());
    },
    get C131() {
      return C[131] = dart.const(Object.setPrototypeOf({
        [Base64Encoder__urlSafe]: false
      }, convert.Base64Encoder.prototype));
    },
    get C132() {
      return C[132] = dart.const(Object.setPrototypeOf({
        [Base64Encoder__urlSafe]: true
      }, convert.Base64Encoder.prototype));
    },
    get C133() {
      return C[133] = dart.const(Object.setPrototypeOf({
      }, convert.Base64Decoder.prototype));
    },
    get C134() {
      return C[134] = dart.constList([], T$2.intL());
    },
    get C135() {
      return C[135] = dart.const(Object.setPrototypeOf({
        [escapeSlash$]: true,
        [escapeApos$]: true,
        [escapeQuot$]: true,
        [escapeLtGt$]: true,
        [_name$4]: "unknown"
      }, convert.HtmlEscapeMode.prototype));
    },
    get C136() {
      return C[136] = dart.const(Object.setPrototypeOf({
        [escapeSlash$]: false,
        [escapeApos$]: false,
        [escapeQuot$]: true,
        [escapeLtGt$]: true,
        [_name$4]: "attribute"
      }, convert.HtmlEscapeMode.prototype));
    },
    get C137() {
      return C[137] = dart.const(Object.setPrototypeOf({
        [escapeSlash$]: false,
        [escapeApos$]: true,
        [escapeQuot$]: false,
        [escapeLtGt$]: true,
        [_name$4]: "attribute"
      }, convert.HtmlEscapeMode.prototype));
    },
    get C138() {
      return C[138] = dart.const(Object.setPrototypeOf({
        [escapeSlash$]: false,
        [escapeApos$]: false,
        [escapeQuot$]: false,
        [escapeLtGt$]: true,
        [_name$4]: "element"
      }, convert.HtmlEscapeMode.prototype));
    },
    get C139() {
      return C[139] = dart.const(Object.setPrototypeOf({
        [JsonEncoder__toEncodable]: null,
        [JsonEncoder_indent]: null
      }, convert.JsonEncoder.prototype));
    },
    get C140() {
      return C[140] = dart.const(Object.setPrototypeOf({
        [JsonDecoder__reviver]: null
      }, convert.JsonDecoder.prototype));
    },
    get C141() {
      return C[141] = dart.fn(convert._defaultToEncodable, T$.dynamicTodynamic());
    },
    get C142() {
      return C[142] = dart.const(Object.setPrototypeOf({
        [_UnicodeSubsetDecoder__subsetMask]: 255,
        [_UnicodeSubsetDecoder__allowInvalid]: true
      }, convert.Latin1Decoder.prototype));
    },
    get C143() {
      return C[143] = dart.const(Object.setPrototypeOf({
        [_UnicodeSubsetDecoder__subsetMask]: 255,
        [_UnicodeSubsetDecoder__allowInvalid]: false
      }, convert.Latin1Decoder.prototype));
    },
    get C144() {
      return C[144] = dart.const(Object.setPrototypeOf({
        [_UnicodeSubsetEncoder__subsetMask]: 255
      }, convert.Latin1Encoder.prototype));
    },
    get C145() {
      return C[145] = dart.constList([65533], T$2.intL());
    },
    get C146() {
      return C[146] = dart.const(Object.setPrototypeOf({
        [Utf8Decoder__allowMalformed]: true
      }, convert.Utf8Decoder.prototype));
    },
    get C147() {
      return C[147] = dart.const(Object.setPrototypeOf({
        [Utf8Decoder__allowMalformed]: false
      }, convert.Utf8Decoder.prototype));
    },
    get C148() {
      return C[148] = dart.const(Object.setPrototypeOf({
      }, convert.Utf8Encoder.prototype));
    },
    get C149() {
      return C[149] = dart.const(Object.setPrototypeOf({
        [_allowInvalid]: false
      }, convert.AsciiCodec.prototype));
    },
    get C150() {
      return C[150] = dart.const(Object.setPrototypeOf({
        [_encoder]: C[131] || CT.C131
      }, convert.Base64Codec.prototype));
    },
    get C151() {
      return C[151] = dart.const(Object.setPrototypeOf({
        [_encoder]: C[132] || CT.C132
      }, convert.Base64Codec.prototype));
    },
    get C152() {
      return C[152] = dart.const(Object.setPrototypeOf({
        [mode$]: C[135] || CT.C135
      }, convert.HtmlEscape.prototype));
    },
    get C153() {
      return C[153] = dart.const(Object.setPrototypeOf({
        [_toEncodable]: null,
        [_reviver]: null
      }, convert.JsonCodec.prototype));
    },
    get C154() {
      return C[154] = dart.const(Object.setPrototypeOf({
        [_allowInvalid$1]: false
      }, convert.Latin1Codec.prototype));
    },
    get C155() {
      return C[155] = dart.const(Object.setPrototypeOf({
        [_allowMalformed]: false
      }, convert.Utf8Codec.prototype));
    },
    get C156() {
      return C[156] = dart.const(Object.setPrototypeOf({
        [_mode$]: 0
      }, io.FileMode.prototype));
    },
    get C157() {
      return C[157] = dart.const(Object.setPrototypeOf({
        [_mode$]: 1
      }, io.FileMode.prototype));
    },
    get C158() {
      return C[158] = dart.const(Object.setPrototypeOf({
        [_mode$]: 2
      }, io.FileMode.prototype));
    },
    get C159() {
      return C[159] = dart.const(Object.setPrototypeOf({
        [_mode$]: 3
      }, io.FileMode.prototype));
    },
    get C160() {
      return C[160] = dart.const(Object.setPrototypeOf({
        [_mode$]: 4
      }, io.FileMode.prototype));
    },
    get C161() {
      return C[161] = dart.const(Object.setPrototypeOf({
        [_type$0]: 1
      }, io.FileLock.prototype));
    },
    get C162() {
      return C[162] = dart.const(Object.setPrototypeOf({
        [_type$0]: 2
      }, io.FileLock.prototype));
    },
    get C163() {
      return C[163] = dart.const(Object.setPrototypeOf({
        [_type$0]: 3
      }, io.FileLock.prototype));
    },
    get C164() {
      return C[164] = dart.const(Object.setPrototypeOf({
        [_type$0]: 4
      }, io.FileLock.prototype));
    },
    get C165() {
      return C[165] = dart.const(Object.setPrototypeOf({
      }, convert.LineSplitter.prototype));
    },
    get C166() {
      return C[166] = dart.fn(io._FileResourceInfo.getOpenFiles, T$2.StringAndMapOfString$StringToFutureOfServiceExtensionResponse());
    },
    get C167() {
      return C[167] = dart.fn(io._FileResourceInfo.getOpenFileInfoMapByID, T$2.StringAndMapOfString$StringToFutureOfServiceExtensionResponse());
    },
    get C168() {
      return C[168] = dart.constList(["file", "directory", "link", "unixDomainSock", "pipe", "notFound"], T$2.StringL());
    },
    get C169() {
      return C[169] = dart.const(Object.setPrototypeOf({
        [_type$1]: 0
      }, io.FileSystemEntityType.prototype));
    },
    get C170() {
      return C[170] = dart.const(Object.setPrototypeOf({
        [_type$1]: 1
      }, io.FileSystemEntityType.prototype));
    },
    get C171() {
      return C[171] = dart.const(Object.setPrototypeOf({
        [_type$1]: 2
      }, io.FileSystemEntityType.prototype));
    },
    get C172() {
      return C[172] = dart.const(Object.setPrototypeOf({
        [_type$1]: 3
      }, io.FileSystemEntityType.prototype));
    },
    get C173() {
      return C[173] = dart.const(Object.setPrototypeOf({
        [_type$1]: 4
      }, io.FileSystemEntityType.prototype));
    },
    get C174() {
      return C[174] = dart.const(Object.setPrototypeOf({
        [_type$1]: 5
      }, io.FileSystemEntityType.prototype));
    },
    get C175() {
      return C[175] = dart.constList([C[169] || CT.C169, C[170] || CT.C170, C[171] || CT.C171, C[172] || CT.C172, C[173] || CT.C173, C[174] || CT.C174], T$2.FileSystemEntityTypeL());
    },
    get C176() {
      return C[176] = dart.constList(["---", "--x", "-w-", "-wx", "r--", "r-x", "rw-", "rwx"], T$2.StringL());
    },
    get C177() {
      return C[177] = dart.fn(io._NetworkProfiling._serviceExtensionHandler, T$2.StringAndMapOfString$StringToFutureOfServiceExtensionResponse());
    },
    get C178() {
      return C[178] = dart.const(Object.setPrototypeOf({
        [_name$0]: "startTime",
        [index$]: 0
      }, io._SocketProfileType.prototype));
    },
    get C179() {
      return C[179] = dart.const(Object.setPrototypeOf({
        [_name$0]: "endTime",
        [index$]: 1
      }, io._SocketProfileType.prototype));
    },
    get C180() {
      return C[180] = dart.const(Object.setPrototypeOf({
        [_name$0]: "address",
        [index$]: 2
      }, io._SocketProfileType.prototype));
    },
    get C181() {
      return C[181] = dart.const(Object.setPrototypeOf({
        [_name$0]: "port",
        [index$]: 3
      }, io._SocketProfileType.prototype));
    },
    get C182() {
      return C[182] = dart.const(Object.setPrototypeOf({
        [_name$0]: "socketType",
        [index$]: 4
      }, io._SocketProfileType.prototype));
    },
    get C183() {
      return C[183] = dart.const(Object.setPrototypeOf({
        [_name$0]: "readBytes",
        [index$]: 5
      }, io._SocketProfileType.prototype));
    },
    get C184() {
      return C[184] = dart.const(Object.setPrototypeOf({
        [_name$0]: "writeBytes",
        [index$]: 6
      }, io._SocketProfileType.prototype));
    },
    get C185() {
      return C[185] = dart.constList([C[178] || CT.C178, C[179] || CT.C179, C[180] || CT.C180, C[181] || CT.C181, C[182] || CT.C182, C[183] || CT.C183, C[184] || CT.C184], T$3._SocketProfileTypeL());
    },
    get C187() {
      return C[187] = dart.const(Object.setPrototypeOf({
        [_mode$0]: 0
      }, io.ProcessStartMode.prototype));
    },
    get C188() {
      return C[188] = dart.const(Object.setPrototypeOf({
        [_mode$0]: 1
      }, io.ProcessStartMode.prototype));
    },
    get C189() {
      return C[189] = dart.const(Object.setPrototypeOf({
        [_mode$0]: 2
      }, io.ProcessStartMode.prototype));
    },
    get C190() {
      return C[190] = dart.const(Object.setPrototypeOf({
        [_mode$0]: 3
      }, io.ProcessStartMode.prototype));
    },
    get C186() {
      return C[186] = dart.constList([C[187] || CT.C187, C[188] || CT.C188, C[189] || CT.C189, C[190] || CT.C190], T$3.ProcessStartModeL());
    },
    get C191() {
      return C[191] = dart.constList(["normal", "inheritStdio", "detached", "detachedWithStdio"], T$2.StringL());
    },
    get C192() {
      return C[192] = dart.const(Object.setPrototypeOf({
      }, io.SystemEncoding.prototype));
    },
    get C193() {
      return C[193] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGTERM",
        [ProcessSignal_signalNumber]: 15
      }, io.ProcessSignal.prototype));
    },
    get C194() {
      return C[194] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGHUP",
        [ProcessSignal_signalNumber]: 1
      }, io.ProcessSignal.prototype));
    },
    get C195() {
      return C[195] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGINT",
        [ProcessSignal_signalNumber]: 2
      }, io.ProcessSignal.prototype));
    },
    get C196() {
      return C[196] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGQUIT",
        [ProcessSignal_signalNumber]: 3
      }, io.ProcessSignal.prototype));
    },
    get C197() {
      return C[197] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGILL",
        [ProcessSignal_signalNumber]: 4
      }, io.ProcessSignal.prototype));
    },
    get C198() {
      return C[198] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGTRAP",
        [ProcessSignal_signalNumber]: 5
      }, io.ProcessSignal.prototype));
    },
    get C199() {
      return C[199] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGABRT",
        [ProcessSignal_signalNumber]: 6
      }, io.ProcessSignal.prototype));
    },
    get C200() {
      return C[200] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGBUS",
        [ProcessSignal_signalNumber]: 7
      }, io.ProcessSignal.prototype));
    },
    get C201() {
      return C[201] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGFPE",
        [ProcessSignal_signalNumber]: 8
      }, io.ProcessSignal.prototype));
    },
    get C202() {
      return C[202] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGKILL",
        [ProcessSignal_signalNumber]: 9
      }, io.ProcessSignal.prototype));
    },
    get C203() {
      return C[203] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGUSR1",
        [ProcessSignal_signalNumber]: 10
      }, io.ProcessSignal.prototype));
    },
    get C204() {
      return C[204] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGSEGV",
        [ProcessSignal_signalNumber]: 11
      }, io.ProcessSignal.prototype));
    },
    get C205() {
      return C[205] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGUSR2",
        [ProcessSignal_signalNumber]: 12
      }, io.ProcessSignal.prototype));
    },
    get C206() {
      return C[206] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGPIPE",
        [ProcessSignal_signalNumber]: 13
      }, io.ProcessSignal.prototype));
    },
    get C207() {
      return C[207] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGALRM",
        [ProcessSignal_signalNumber]: 14
      }, io.ProcessSignal.prototype));
    },
    get C208() {
      return C[208] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGCHLD",
        [ProcessSignal_signalNumber]: 17
      }, io.ProcessSignal.prototype));
    },
    get C209() {
      return C[209] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGCONT",
        [ProcessSignal_signalNumber]: 18
      }, io.ProcessSignal.prototype));
    },
    get C210() {
      return C[210] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGSTOP",
        [ProcessSignal_signalNumber]: 19
      }, io.ProcessSignal.prototype));
    },
    get C211() {
      return C[211] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGTSTP",
        [ProcessSignal_signalNumber]: 20
      }, io.ProcessSignal.prototype));
    },
    get C212() {
      return C[212] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGTTIN",
        [ProcessSignal_signalNumber]: 21
      }, io.ProcessSignal.prototype));
    },
    get C213() {
      return C[213] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGTTOU",
        [ProcessSignal_signalNumber]: 22
      }, io.ProcessSignal.prototype));
    },
    get C214() {
      return C[214] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGURG",
        [ProcessSignal_signalNumber]: 23
      }, io.ProcessSignal.prototype));
    },
    get C215() {
      return C[215] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGXCPU",
        [ProcessSignal_signalNumber]: 24
      }, io.ProcessSignal.prototype));
    },
    get C216() {
      return C[216] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGXFSZ",
        [ProcessSignal_signalNumber]: 25
      }, io.ProcessSignal.prototype));
    },
    get C217() {
      return C[217] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGVTALRM",
        [ProcessSignal_signalNumber]: 26
      }, io.ProcessSignal.prototype));
    },
    get C218() {
      return C[218] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGPROF",
        [ProcessSignal_signalNumber]: 27
      }, io.ProcessSignal.prototype));
    },
    get C219() {
      return C[219] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGWINCH",
        [ProcessSignal_signalNumber]: 28
      }, io.ProcessSignal.prototype));
    },
    get C220() {
      return C[220] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGPOLL",
        [ProcessSignal_signalNumber]: 29
      }, io.ProcessSignal.prototype));
    },
    get C221() {
      return C[221] = dart.const(Object.setPrototypeOf({
        [ProcessSignal_name]: "SIGSYS",
        [ProcessSignal_signalNumber]: 31
      }, io.ProcessSignal.prototype));
    },
    get C222() {
      return C[222] = dart.const(Object.setPrototypeOf({
        [_version$]: 771
      }, io.TlsProtocolVersion.prototype));
    },
    get C223() {
      return C[223] = dart.const(Object.setPrototypeOf({
        [_version$]: 772
      }, io.TlsProtocolVersion.prototype));
    },
    get C224() {
      return C[224] = dart.constList(["ANY", "IPv4", "IPv6", "Unix"], T$2.StringL());
    },
    get C225() {
      return C[225] = dart.const(Object.setPrototypeOf({
        [_value$]: 0
      }, io.InternetAddressType.prototype));
    },
    get C226() {
      return C[226] = dart.const(Object.setPrototypeOf({
        [_value$]: 1
      }, io.InternetAddressType.prototype));
    },
    get C227() {
      return C[227] = dart.const(Object.setPrototypeOf({
        [_value$]: 2
      }, io.InternetAddressType.prototype));
    },
    get C228() {
      return C[228] = dart.const(Object.setPrototypeOf({
        [_value$]: -1
      }, io.InternetAddressType.prototype));
    },
    get C229() {
      return C[229] = dart.const(Object.setPrototypeOf({
        [_value$0]: 0
      }, io.SocketDirection.prototype));
    },
    get C230() {
      return C[230] = dart.const(Object.setPrototypeOf({
        [_value$0]: 1
      }, io.SocketDirection.prototype));
    },
    get C231() {
      return C[231] = dart.const(Object.setPrototypeOf({
        [_value$0]: 2
      }, io.SocketDirection.prototype));
    },
    get C232() {
      return C[232] = dart.const(Object.setPrototypeOf({
        [_value$1]: 0
      }, io.SocketOption.prototype));
    },
    get C233() {
      return C[233] = dart.const(Object.setPrototypeOf({
        [_value$1]: 1
      }, io.SocketOption.prototype));
    },
    get C234() {
      return C[234] = dart.const(Object.setPrototypeOf({
        [_value$1]: 2
      }, io.SocketOption.prototype));
    },
    get C235() {
      return C[235] = dart.const(Object.setPrototypeOf({
        [_value$1]: 3
      }, io.SocketOption.prototype));
    },
    get C236() {
      return C[236] = dart.const(Object.setPrototypeOf({
        [_value$1]: 4
      }, io.SocketOption.prototype));
    },
    get C238() {
      return C[238] = dart.const(Object.setPrototypeOf({
        [_name$0]: "SOL_SOCKET",
        [index$]: 0
      }, io._RawSocketOptions.prototype));
    },
    get C239() {
      return C[239] = dart.const(Object.setPrototypeOf({
        [_name$0]: "IPPROTO_IP",
        [index$]: 1
      }, io._RawSocketOptions.prototype));
    },
    get C240() {
      return C[240] = dart.const(Object.setPrototypeOf({
        [_name$0]: "IP_MULTICAST_IF",
        [index$]: 2
      }, io._RawSocketOptions.prototype));
    },
    get C241() {
      return C[241] = dart.const(Object.setPrototypeOf({
        [_name$0]: "IPPROTO_IPV6",
        [index$]: 3
      }, io._RawSocketOptions.prototype));
    },
    get C242() {
      return C[242] = dart.const(Object.setPrototypeOf({
        [_name$0]: "IPV6_MULTICAST_IF",
        [index$]: 4
      }, io._RawSocketOptions.prototype));
    },
    get C243() {
      return C[243] = dart.const(Object.setPrototypeOf({
        [_name$0]: "IPPROTO_TCP",
        [index$]: 5
      }, io._RawSocketOptions.prototype));
    },
    get C244() {
      return C[244] = dart.const(Object.setPrototypeOf({
        [_name$0]: "IPPROTO_UDP",
        [index$]: 6
      }, io._RawSocketOptions.prototype));
    },
    get C237() {
      return C[237] = dart.constList([C[238] || CT.C238, C[239] || CT.C239, C[240] || CT.C240, C[241] || CT.C241, C[242] || CT.C242, C[243] || CT.C243, C[244] || CT.C244], T$3._RawSocketOptionsL());
    },
    get C245() {
      return C[245] = dart.constList(["RawSocketEvent.read", "RawSocketEvent.write", "RawSocketEvent.readClosed", "RawSocketEvent.closed"], T$2.StringL());
    },
    get C246() {
      return C[246] = dart.const(Object.setPrototypeOf({
        [_value$2]: 0
      }, io.RawSocketEvent.prototype));
    },
    get C247() {
      return C[247] = dart.const(Object.setPrototypeOf({
        [_value$2]: 1
      }, io.RawSocketEvent.prototype));
    },
    get C248() {
      return C[248] = dart.const(Object.setPrototypeOf({
        [_value$2]: 2
      }, io.RawSocketEvent.prototype));
    },
    get C249() {
      return C[249] = dart.const(Object.setPrototypeOf({
        [_value$2]: 3
      }, io.RawSocketEvent.prototype));
    },
    get C250() {
      return C[250] = dart.const(Object.setPrototypeOf({
        [name$12]: "terminal"
      }, io.StdioType.prototype));
    },
    get C251() {
      return C[251] = dart.const(Object.setPrototypeOf({
        [name$12]: "pipe"
      }, io.StdioType.prototype));
    },
    get C252() {
      return C[252] = dart.const(Object.setPrototypeOf({
        [name$12]: "file"
      }, io.StdioType.prototype));
    },
    get C253() {
      return C[253] = dart.const(Object.setPrototypeOf({
        [name$12]: "other"
      }, io.StdioType.prototype));
    },
    get C254() {
      return C[254] = dart.const(Object.setPrototypeOf({
      }, io._WindowsCodePageEncoder.prototype));
    },
    get C255() {
      return C[255] = dart.const(Object.setPrototypeOf({
      }, io._WindowsCodePageDecoder.prototype));
    },
    get C256() {
      return C[256] = dart.constList([1, 2, 3, 4, 0], T$2.intL());
    },
    get C257() {
      return C[257] = dart.const(Object.setPrototypeOf({
        [dictionary$]: null,
        [raw$]: false,
        [windowBits$]: 15,
        [strategy$]: 0,
        [memLevel$]: 8,
        [level$]: 6,
        [gzip$]: false
      }, io.ZLibCodec.prototype));
    },
    get C258() {
      return C[258] = dart.const(Object.setPrototypeOf({
        [raw$0]: false,
        [dictionary$0]: null,
        [windowBits$0]: 15,
        [strategy$0]: 0,
        [memLevel$0]: 8,
        [level$0]: 6,
        [gzip$0]: true
      }, io.GZipCodec.prototype));
    },
    get C259() {
      return C[259] = dart.fn(isolate._RemoteRunner._remoteExecute, T$3._RemoteRunnerOfObjectNTovoid());
    },
    get C260() {
      return C[260] = dart.fn(js._convertToJS, T$.ObjectNToObjectN());
    },
    get C261() {
      return C[261] = dart.fn(js._wrapDartFunction, T$3.ObjectToObject());
    },
    get C262() {
      return C[262] = dart.fn(js._wrapToDartHelper, T$3.ObjectToJsObject());
    },
    get C263() {
      return C[263] = dart.const(Object.setPrototypeOf({
      }, math._JSRandom.prototype));
    },
    get C264() {
      return C[264] = dart.const(Object.setPrototypeOf({
        [Endian__littleEndian]: true
      }, typed_data.Endian.prototype));
    },
    get C265() {
      return C[265] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "abort"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C266() {
      return C[266] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "close"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C267() {
      return C[267] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "error"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C268() {
      return C[268] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfVersionChangeEventL(),
        [S.EventStreamProvider__eventType]: "versionchange"
      }, G.EventStreamProviderOfVersionChangeEventL().prototype));
    },
    get C269() {
      return C[269] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "success"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C270() {
      return C[270] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "blocked"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C271() {
      return C[271] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfVersionChangeEventL(),
        [S.EventStreamProvider__eventType]: "upgradeneeded"
      }, G.EventStreamProviderOfVersionChangeEventL().prototype));
    },
    get C272() {
      return C[272] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "complete"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C273() {
      return C[273] = dart.const(Object.setPrototypeOf({
        [types$0]: "JSExtendableArray|=Object|num|String"
      }, _js_helper.Creates.prototype));
    },
    get C274() {
      return C[274] = dart.const(Object.setPrototypeOf({
        [types$1]: "JSExtendableArray|=Object|num|String"
      }, _js_helper.Returns.prototype));
    },
    get C275() {
      return C[275] = dart.fn(html_common.convertDartToNative_Dictionary, T$3.MapNAndFnTodynamic());
    },
    get C277() {
      return C[277] = dart.fn(html$.Element._determineMouseWheelEventType, T$3.EventTargetToString());
    },
    get C276() {
      return C[276] = dart.const(Object.setPrototypeOf({
        $ti: T$4._CustomEventStreamProviderOfWheelEventL(),
        [S$._CustomEventStreamProvider__eventTypeGetter]: C[277] || CT.C277
      }, G._CustomEventStreamProviderOfWheelEventL().prototype));
    },
    get C279() {
      return C[279] = dart.fn(html$.Element._determineTransitionEventType, T$3.EventTargetToString());
    },
    get C278() {
      return C[278] = dart.const(Object.setPrototypeOf({
        $ti: T$4._CustomEventStreamProviderOfTransitionEventL(),
        [S$._CustomEventStreamProvider__eventTypeGetter]: C[279] || CT.C279
      }, G._CustomEventStreamProviderOfTransitionEventL().prototype));
    },
    get C280() {
      return C[280] = dart.constList(["HEAD", "AREA", "BASE", "BASEFONT", "BR", "COL", "COLGROUP", "EMBED", "FRAME", "FRAMESET", "HR", "IMAGE", "IMG", "INPUT", "ISINDEX", "LINK", "META", "PARAM", "SOURCE", "STYLE", "TITLE", "WBR"], T$2.StringL());
    },
    get C281() {
      return C[281] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "beforecopy"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C282() {
      return C[282] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "beforecut"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C283() {
      return C[283] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "beforepaste"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C284() {
      return C[284] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "blur"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C285() {
      return C[285] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "canplay"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C286() {
      return C[286] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "canplaythrough"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C287() {
      return C[287] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "change"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C288() {
      return C[288] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "click"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C289() {
      return C[289] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "contextmenu"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C290() {
      return C[290] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfClipboardEventL(),
        [S.EventStreamProvider__eventType]: "copy"
      }, G.EventStreamProviderOfClipboardEventL().prototype));
    },
    get C291() {
      return C[291] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfClipboardEventL(),
        [S.EventStreamProvider__eventType]: "cut"
      }, G.EventStreamProviderOfClipboardEventL().prototype));
    },
    get C292() {
      return C[292] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "dblclick"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C293() {
      return C[293] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "drag"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C294() {
      return C[294] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "dragend"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C295() {
      return C[295] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "dragenter"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C296() {
      return C[296] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "dragleave"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C297() {
      return C[297] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "dragover"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C298() {
      return C[298] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "dragstart"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C299() {
      return C[299] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "drop"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C300() {
      return C[300] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "durationchange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C301() {
      return C[301] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "emptied"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C302() {
      return C[302] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "ended"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C303() {
      return C[303] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "focus"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C304() {
      return C[304] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "input"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C305() {
      return C[305] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "invalid"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C306() {
      return C[306] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfKeyboardEventL(),
        [S.EventStreamProvider__eventType]: "keydown"
      }, G.EventStreamProviderOfKeyboardEventL().prototype));
    },
    get C307() {
      return C[307] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfKeyboardEventL(),
        [S.EventStreamProvider__eventType]: "keypress"
      }, G.EventStreamProviderOfKeyboardEventL().prototype));
    },
    get C308() {
      return C[308] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfKeyboardEventL(),
        [S.EventStreamProvider__eventType]: "keyup"
      }, G.EventStreamProviderOfKeyboardEventL().prototype));
    },
    get C309() {
      return C[309] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "load"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C310() {
      return C[310] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "loadeddata"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C311() {
      return C[311] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "loadedmetadata"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C312() {
      return C[312] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "mousedown"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C313() {
      return C[313] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "mouseenter"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C314() {
      return C[314] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "mouseleave"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C315() {
      return C[315] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "mousemove"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C316() {
      return C[316] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "mouseout"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C317() {
      return C[317] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "mouseover"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C318() {
      return C[318] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMouseEventL(),
        [S.EventStreamProvider__eventType]: "mouseup"
      }, G.EventStreamProviderOfMouseEventL().prototype));
    },
    get C319() {
      return C[319] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfClipboardEventL(),
        [S.EventStreamProvider__eventType]: "paste"
      }, G.EventStreamProviderOfClipboardEventL().prototype));
    },
    get C320() {
      return C[320] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "pause"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C321() {
      return C[321] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "play"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C322() {
      return C[322] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "playing"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C323() {
      return C[323] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "ratechange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C324() {
      return C[324] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "reset"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C325() {
      return C[325] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "resize"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C326() {
      return C[326] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "scroll"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C327() {
      return C[327] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "search"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C328() {
      return C[328] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "seeked"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C329() {
      return C[329] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "seeking"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C330() {
      return C[330] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "select"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C331() {
      return C[331] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "selectstart"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C332() {
      return C[332] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "stalled"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C333() {
      return C[333] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "submit"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C334() {
      return C[334] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "suspend"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C335() {
      return C[335] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "timeupdate"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C336() {
      return C[336] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfTouchEventL(),
        [S.EventStreamProvider__eventType]: "touchcancel"
      }, G.EventStreamProviderOfTouchEventL().prototype));
    },
    get C337() {
      return C[337] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfTouchEventL(),
        [S.EventStreamProvider__eventType]: "touchend"
      }, G.EventStreamProviderOfTouchEventL().prototype));
    },
    get C338() {
      return C[338] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfTouchEventL(),
        [S.EventStreamProvider__eventType]: "touchenter"
      }, G.EventStreamProviderOfTouchEventL().prototype));
    },
    get C339() {
      return C[339] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfTouchEventL(),
        [S.EventStreamProvider__eventType]: "touchleave"
      }, G.EventStreamProviderOfTouchEventL().prototype));
    },
    get C340() {
      return C[340] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfTouchEventL(),
        [S.EventStreamProvider__eventType]: "touchmove"
      }, G.EventStreamProviderOfTouchEventL().prototype));
    },
    get C341() {
      return C[341] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfTouchEventL(),
        [S.EventStreamProvider__eventType]: "touchstart"
      }, G.EventStreamProviderOfTouchEventL().prototype));
    },
    get C342() {
      return C[342] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "volumechange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C343() {
      return C[343] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "waiting"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C344() {
      return C[344] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "webkitfullscreenchange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C345() {
      return C[345] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "webkitfullscreenerror"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C346() {
      return C[346] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfWheelEventL(),
        [S.EventStreamProvider__eventType]: "wheel"
      }, G.EventStreamProviderOfWheelEventL().prototype));
    },
    get C347() {
      return C[347] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "accessibleclick"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C348() {
      return C[348] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "accessiblecontextmenu"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C349() {
      return C[349] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "accessibledecrement"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C350() {
      return C[350] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "accessiblefocus"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C351() {
      return C[351] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "accessibleincrement"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C352() {
      return C[352] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "accessiblescrollintoview"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C353() {
      return C[353] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "cancel"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C354() {
      return C[354] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "finish"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C355() {
      return C[355] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "cached"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C356() {
      return C[356] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "checking"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C357() {
      return C[357] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "downloading"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C358() {
      return C[358] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "noupdate"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C359() {
      return C[359] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "obsolete"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C360() {
      return C[360] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "progress"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C361() {
      return C[361] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "updateready"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C362() {
      return C[362] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "hashchange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C363() {
      return C[363] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfMessageEventL(),
        [S.EventStreamProvider__eventType]: "message"
      }, G.EventStreamProviderOfMessageEventL().prototype));
    },
    get C364() {
      return C[364] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "offline"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C365() {
      return C[365] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "online"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C366() {
      return C[366] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfPopStateEventL(),
        [S.EventStreamProvider__eventType]: "popstate"
      }, G.EventStreamProviderOfPopStateEventL().prototype));
    },
    get C367() {
      return C[367] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfStorageEventL(),
        [S.EventStreamProvider__eventType]: "storage"
      }, G.EventStreamProviderOfStorageEventL().prototype));
    },
    get C368() {
      return C[368] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "unload"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C369() {
      return C[369] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "mute"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C370() {
      return C[370] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "unmute"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C371() {
      return C[371] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfContextEventL(),
        [S.EventStreamProvider__eventType]: "webglcontextlost"
      }, G.EventStreamProviderOfContextEventL().prototype));
    },
    get C372() {
      return C[372] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfContextEventL(),
        [S.EventStreamProvider__eventType]: "webglcontextrestored"
      }, G.EventStreamProviderOfContextEventL().prototype));
    },
    get C373() {
      return C[373] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "pointerlockchange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C374() {
      return C[374] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "pointerlockerror"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C375() {
      return C[375] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "readystatechange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C376() {
      return C[376] = dart.const(Object.setPrototypeOf({
        $ti: T$5.EventStreamProviderOfSecurityPolicyViolationEventL(),
        [S.EventStreamProvider__eventType]: "securitypolicyviolation"
      }, G$.EventStreamProviderOfSecurityPolicyViolationEventL().prototype));
    },
    get C377() {
      return C[377] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "selectionchange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C378() {
      return C[378] = dart.const(Object.setPrototypeOf({
        [S$1._value$5]: "TOP"
      }, html$.ScrollAlignment.prototype));
    },
    get C379() {
      return C[379] = dart.const(Object.setPrototypeOf({
        [S$1._value$5]: "CENTER"
      }, html$.ScrollAlignment.prototype));
    },
    get C380() {
      return C[380] = dart.const(Object.setPrototypeOf({
        [S$1._value$5]: "BOTTOM"
      }, html$.ScrollAlignment.prototype));
    },
    get C381() {
      return C[381] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "open"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C382() {
      return C[382] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "abort"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C383() {
      return C[383] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "error"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C384() {
      return C[384] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "load"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C385() {
      return C[385] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "loadend"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C386() {
      return C[386] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "loadstart"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C387() {
      return C[387] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "write"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C388() {
      return C[388] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "writeend"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C389() {
      return C[389] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "writestart"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C390() {
      return C[390] = dart.const(Object.setPrototypeOf({
        $ti: T$5.EventStreamProviderOfFontFaceSetLoadEventL(),
        [S.EventStreamProvider__eventType]: "loading"
      }, G$.EventStreamProviderOfFontFaceSetLoadEventL().prototype));
    },
    get C391() {
      return C[391] = dart.const(Object.setPrototypeOf({
        $ti: T$5.EventStreamProviderOfFontFaceSetLoadEventL(),
        [S.EventStreamProvider__eventType]: "loadingdone"
      }, G$.EventStreamProviderOfFontFaceSetLoadEventL().prototype));
    },
    get C392() {
      return C[392] = dart.const(Object.setPrototypeOf({
        $ti: T$5.EventStreamProviderOfFontFaceSetLoadEventL(),
        [S.EventStreamProvider__eventType]: "loadingerror"
      }, G$.EventStreamProviderOfFontFaceSetLoadEventL().prototype));
    },
    get C393() {
      return C[393] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfWheelEventL(),
        [S.EventStreamProvider__eventType]: "mousewheel"
      }, G.EventStreamProviderOfWheelEventL().prototype));
    },
    get C395() {
      return C[395] = dart.fn(html$.HtmlDocument._determineVisibilityChangeEventType, T$3.EventTargetToString());
    },
    get C394() {
      return C[394] = dart.const(Object.setPrototypeOf({
        $ti: T$5._CustomEventStreamProviderOfEventL(),
        [S$._CustomEventStreamProvider__eventTypeGetter]: C[395] || CT.C395
      }, G$._CustomEventStreamProviderOfEventL().prototype));
    },
    get C396() {
      return C[396] = dart.const(Object.setPrototypeOf({
        $ti: T$4.EventStreamProviderOfProgressEventL(),
        [S.EventStreamProvider__eventType]: "timeout"
      }, G.EventStreamProviderOfProgressEventL().prototype));
    },
    get C397() {
      return C[397] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "addtrack"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C398() {
      return C[398] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "removetrack"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C399() {
      return C[399] = dart.constList([], T$5.MessagePortL());
    },
    get C400() {
      return C[400] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfMidiMessageEventL(),
        [S.EventStreamProvider__eventType]: "midimessage"
      }, G$.EventStreamProviderOfMidiMessageEventL().prototype));
    },
    get C401() {
      return C[401] = dart.constMap(T$2.StringL(), T.boolL(), ["childList", true, "attributes", true, "characterData", true, "subtree", true, "attributeOldValue", true, "characterDataOldValue", true]);
    },
    get C402() {
      return C[402] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "click"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C403() {
      return C[403] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "show"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C404() {
      return C[404] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfRtcDtmfToneChangeEventL(),
        [S.EventStreamProvider__eventType]: "tonechange"
      }, G$.EventStreamProviderOfRtcDtmfToneChangeEventL().prototype));
    },
    get C405() {
      return C[405] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfMediaStreamEventL(),
        [S.EventStreamProvider__eventType]: "addstream"
      }, G$.EventStreamProviderOfMediaStreamEventL().prototype));
    },
    get C406() {
      return C[406] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "connectionstatechange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C407() {
      return C[407] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfRtcDataChannelEventL(),
        [S.EventStreamProvider__eventType]: "datachannel"
      }, G$.EventStreamProviderOfRtcDataChannelEventL().prototype));
    },
    get C408() {
      return C[408] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfRtcPeerConnectionIceEventL(),
        [S.EventStreamProvider__eventType]: "icecandidate"
      }, G$.EventStreamProviderOfRtcPeerConnectionIceEventL().prototype));
    },
    get C409() {
      return C[409] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "iceconnectionstatechange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C410() {
      return C[410] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "negotiationneeded"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C411() {
      return C[411] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfMediaStreamEventL(),
        [S.EventStreamProvider__eventType]: "removestream"
      }, G$.EventStreamProviderOfMediaStreamEventL().prototype));
    },
    get C412() {
      return C[412] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "signalingstatechange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C413() {
      return C[413] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfRtcTrackEventL(),
        [S.EventStreamProvider__eventType]: "track"
      }, G$.EventStreamProviderOfRtcTrackEventL().prototype));
    },
    get C414() {
      return C[414] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "activate"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C415() {
      return C[415] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "fetch"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C416() {
      return C[416] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfForeignFetchEventL(),
        [S.EventStreamProvider__eventType]: "foreignfetch"
      }, G$.EventStreamProviderOfForeignFetchEventL().prototype));
    },
    get C417() {
      return C[417] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "install"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C418() {
      return C[418] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "connect"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C419() {
      return C[419] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "audioend"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C420() {
      return C[420] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "audiostart"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C421() {
      return C[421] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "end"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C422() {
      return C[422] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfSpeechRecognitionErrorL(),
        [S.EventStreamProvider__eventType]: "error"
      }, G$.EventStreamProviderOfSpeechRecognitionErrorL().prototype));
    },
    get C423() {
      return C[423] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfSpeechRecognitionEventL(),
        [S.EventStreamProvider__eventType]: "nomatch"
      }, G$.EventStreamProviderOfSpeechRecognitionEventL().prototype));
    },
    get C424() {
      return C[424] = dart.const(Object.setPrototypeOf({
        $ti: T.EventStreamProviderOfSpeechRecognitionEventL(),
        [S.EventStreamProvider__eventType]: "result"
      }, G$.EventStreamProviderOfSpeechRecognitionEventL().prototype));
    },
    get C425() {
      return C[425] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "soundend"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C426() {
      return C[426] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "soundstart"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C427() {
      return C[427] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "speechend"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C428() {
      return C[428] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "speechstart"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C429() {
      return C[429] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "start"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C430() {
      return C[430] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfSpeechSynthesisEventL(),
        [S.EventStreamProvider__eventType]: "boundary"
      }, G$.EventStreamProviderOfSpeechSynthesisEventL().prototype));
    },
    get C431() {
      return C[431] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfSpeechSynthesisEventL(),
        [S.EventStreamProvider__eventType]: "end"
      }, G$.EventStreamProviderOfSpeechSynthesisEventL().prototype));
    },
    get C432() {
      return C[432] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfSpeechSynthesisEventL(),
        [S.EventStreamProvider__eventType]: "mark"
      }, G$.EventStreamProviderOfSpeechSynthesisEventL().prototype));
    },
    get C433() {
      return C[433] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfSpeechSynthesisEventL(),
        [S.EventStreamProvider__eventType]: "resume"
      }, G$.EventStreamProviderOfSpeechSynthesisEventL().prototype));
    },
    get C434() {
      return C[434] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfSpeechSynthesisEventL(),
        [S.EventStreamProvider__eventType]: "start"
      }, G$.EventStreamProviderOfSpeechSynthesisEventL().prototype));
    },
    get C435() {
      return C[435] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "cuechange"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C436() {
      return C[436] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "enter"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C437() {
      return C[437] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "exit"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C438() {
      return C[438] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfTrackEventL(),
        [S.EventStreamProvider__eventType]: "addtrack"
      }, G$.EventStreamProviderOfTrackEventL().prototype));
    },
    get C439() {
      return C[439] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfCloseEventL(),
        [S.EventStreamProvider__eventType]: "close"
      }, G$.EventStreamProviderOfCloseEventL().prototype));
    },
    get C440() {
      return C[440] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "DOMContentLoaded"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C441() {
      return C[441] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfDeviceMotionEventL(),
        [S.EventStreamProvider__eventType]: "devicemotion"
      }, G$.EventStreamProviderOfDeviceMotionEventL().prototype));
    },
    get C442() {
      return C[442] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfDeviceOrientationEventL(),
        [S.EventStreamProvider__eventType]: "deviceorientation"
      }, G$.EventStreamProviderOfDeviceOrientationEventL().prototype));
    },
    get C443() {
      return C[443] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "loadstart"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C444() {
      return C[444] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "pagehide"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C445() {
      return C[445] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "pageshow"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C446() {
      return C[446] = dart.const(Object.setPrototypeOf({
        $ti: T$3.EventStreamProviderOfEventL(),
        [S.EventStreamProvider__eventType]: "progress"
      }, G.EventStreamProviderOfEventL().prototype));
    },
    get C447() {
      return C[447] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfAnimationEventL(),
        [S.EventStreamProvider__eventType]: "webkitAnimationEnd"
      }, G$.EventStreamProviderOfAnimationEventL().prototype));
    },
    get C448() {
      return C[448] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfAnimationEventL(),
        [S.EventStreamProvider__eventType]: "webkitAnimationIteration"
      }, G$.EventStreamProviderOfAnimationEventL().prototype));
    },
    get C449() {
      return C[449] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfAnimationEventL(),
        [S.EventStreamProvider__eventType]: "webkitAnimationStart"
      }, G$.EventStreamProviderOfAnimationEventL().prototype));
    },
    get C450() {
      return C[450] = dart.const(Object.setPrototypeOf({
        $ti: T$6.EventStreamProviderOfBeforeUnloadEventL(),
        [S.EventStreamProvider__eventType]: "beforeunload"
      }, G$.EventStreamProviderOfBeforeUnloadEventL().prototype));
    },
    get C451() {
      return C[451] = dart.fn(html$._Html5NodeValidator._standardAttributeValidator, T$6.ElementAndStringAndString__Tobool());
    },
    get C452() {
      return C[452] = dart.fn(html$._Html5NodeValidator._uriAttributeValidator, T$6.ElementAndStringAndString__Tobool());
    },
    get C453() {
      return C[453] = dart.constList(["*::class", "*::dir", "*::draggable", "*::hidden", "*::id", "*::inert", "*::itemprop", "*::itemref", "*::itemscope", "*::lang", "*::spellcheck", "*::title", "*::translate", "A::accesskey", "A::coords", "A::hreflang", "A::name", "A::shape", "A::tabindex", "A::target", "A::type", "AREA::accesskey", "AREA::alt", "AREA::coords", "AREA::nohref", "AREA::shape", "AREA::tabindex", "AREA::target", "AUDIO::controls", "AUDIO::loop", "AUDIO::mediagroup", "AUDIO::muted", "AUDIO::preload", "BDO::dir", "BODY::alink", "BODY::bgcolor", "BODY::link", "BODY::text", "BODY::vlink", "BR::clear", "BUTTON::accesskey", "BUTTON::disabled", "BUTTON::name", "BUTTON::tabindex", "BUTTON::type", "BUTTON::value", "CANVAS::height", "CANVAS::width", "CAPTION::align", "COL::align", "COL::char", "COL::charoff", "COL::span", "COL::valign", "COL::width", "COLGROUP::align", "COLGROUP::char", "COLGROUP::charoff", "COLGROUP::span", "COLGROUP::valign", "COLGROUP::width", "COMMAND::checked", "COMMAND::command", "COMMAND::disabled", "COMMAND::label", "COMMAND::radiogroup", "COMMAND::type", "DATA::value", "DEL::datetime", "DETAILS::open", "DIR::compact", "DIV::align", "DL::compact", "FIELDSET::disabled", "FONT::color", "FONT::face", "FONT::size", "FORM::accept", "FORM::autocomplete", "FORM::enctype", "FORM::method", "FORM::name", "FORM::novalidate", "FORM::target", "FRAME::name", "H1::align", "H2::align", "H3::align", "H4::align", "H5::align", "H6::align", "HR::align", "HR::noshade", "HR::size", "HR::width", "HTML::version", "IFRAME::align", "IFRAME::frameborder", "IFRAME::height", "IFRAME::marginheight", "IFRAME::marginwidth", "IFRAME::width", "IMG::align", "IMG::alt", "IMG::border", "IMG::height", "IMG::hspace", "IMG::ismap", "IMG::name", "IMG::usemap", "IMG::vspace", "IMG::width", "INPUT::accept", "INPUT::accesskey", "INPUT::align", "INPUT::alt", "INPUT::autocomplete", "INPUT::autofocus", "INPUT::checked", "INPUT::disabled", "INPUT::inputmode", "INPUT::ismap", "INPUT::list", "INPUT::max", "INPUT::maxlength", "INPUT::min", "INPUT::multiple", "INPUT::name", "INPUT::placeholder", "INPUT::readonly", "INPUT::required", "INPUT::size", "INPUT::step", "INPUT::tabindex", "INPUT::type", "INPUT::usemap", "INPUT::value", "INS::datetime", "KEYGEN::disabled", "KEYGEN::keytype", "KEYGEN::name", "LABEL::accesskey", "LABEL::for", "LEGEND::accesskey", "LEGEND::align", "LI::type", "LI::value", "LINK::sizes", "MAP::name", "MENU::compact", "MENU::label", "MENU::type", "METER::high", "METER::low", "METER::max", "METER::min", "METER::value", "OBJECT::typemustmatch", "OL::compact", "OL::reversed", "OL::start", "OL::type", "OPTGROUP::disabled", "OPTGROUP::label", "OPTION::disabled", "OPTION::label", "OPTION::selected", "OPTION::value", "OUTPUT::for", "OUTPUT::name", "P::align", "PRE::width", "PROGRESS::max", "PROGRESS::min", "PROGRESS::value", "SELECT::autocomplete", "SELECT::disabled", "SELECT::multiple", "SELECT::name", "SELECT::required", "SELECT::size", "SELECT::tabindex", "SOURCE::type", "TABLE::align", "TABLE::bgcolor", "TABLE::border", "TABLE::cellpadding", "TABLE::cellspacing", "TABLE::frame", "TABLE::rules", "TABLE::summary", "TABLE::width", "TBODY::align", "TBODY::char", "TBODY::charoff", "TBODY::valign", "TD::abbr", "TD::align", "TD::axis", "TD::bgcolor", "TD::char", "TD::charoff", "TD::colspan", "TD::headers", "TD::height", "TD::nowrap", "TD::rowspan", "TD::scope", "TD::valign", "TD::width", "TEXTAREA::accesskey", "TEXTAREA::autocomplete", "TEXTAREA::cols", "TEXTAREA::disabled", "TEXTAREA::inputmode", "TEXTAREA::name", "TEXTAREA::placeholder", "TEXTAREA::readonly", "TEXTAREA::required", "TEXTAREA::rows", "TEXTAREA::tabindex", "TEXTAREA::wrap", "TFOOT::align", "TFOOT::char", "TFOOT::charoff", "TFOOT::valign", "TH::abbr", "TH::align", "TH::axis", "TH::bgcolor", "TH::char", "TH::charoff", "TH::colspan", "TH::headers", "TH::height", "TH::nowrap", "TH::rowspan", "TH::scope", "TH::valign", "TH::width", "THEAD::align", "THEAD::char", "THEAD::charoff", "THEAD::valign", "TR::align", "TR::bgcolor", "TR::char", "TR::charoff", "TR::valign", "TRACK::default", "TRACK::kind", "TRACK::label", "TRACK::srclang", "UL::compact", "UL::type", "VIDEO::controls", "VIDEO::height", "VIDEO::loop", "VIDEO::mediagroup", "VIDEO::muted", "VIDEO::preload", "VIDEO::width"], T$2.StringL());
    },
    get C454() {
      return C[454] = dart.constList(["A::href", "AREA::href", "BLOCKQUOTE::cite", "BODY::background", "COMMAND::icon", "DEL::cite", "FORM::action", "IMG::src", "INPUT::src", "INS::cite", "Q::cite", "VIDEO::poster"], T$2.StringL());
    },
    get C455() {
      return C[455] = dart.constMap(T$2.StringL(), T$2.intL(), ["Up", 38, "Down", 40, "Left", 37, "Right", 39, "Enter", 13, "F1", 112, "F2", 113, "F3", 114, "F4", 115, "F5", 116, "F6", 117, "F7", 118, "F8", 119, "F9", 120, "F10", 121, "F11", 122, "F12", 123, "U+007F", 46, "Home", 36, "End", 35, "PageUp", 33, "PageDown", 34, "Insert", 45]);
    },
    get C456() {
      return C[456] = dart.constList([], T$2.StringL());
    },
    get C457() {
      return C[457] = dart.constList(["A", "FORM"], T$2.StringL());
    },
    get C458() {
      return C[458] = dart.constList(["A::accesskey", "A::coords", "A::hreflang", "A::name", "A::shape", "A::tabindex", "A::target", "A::type", "FORM::accept", "FORM::autocomplete", "FORM::enctype", "FORM::method", "FORM::name", "FORM::novalidate", "FORM::target"], T$2.StringL());
    },
    get C459() {
      return C[459] = dart.constList(["A::href", "FORM::action"], T$2.StringL());
    },
    get C460() {
      return C[460] = dart.constList(["IMG"], T$2.StringL());
    },
    get C461() {
      return C[461] = dart.constList(["IMG::align", "IMG::alt", "IMG::border", "IMG::height", "IMG::hspace", "IMG::ismap", "IMG::name", "IMG::usemap", "IMG::vspace", "IMG::width"], T$2.StringL());
    },
    get C462() {
      return C[462] = dart.constList(["IMG::src"], T$2.StringL());
    },
    get C463() {
      return C[463] = dart.constList(["B", "BLOCKQUOTE", "BR", "EM", "H1", "H2", "H3", "H4", "H5", "H6", "HR", "I", "LI", "OL", "P", "SPAN", "UL"], T$2.StringL());
    },
    get C464() {
      return C[464] = dart.constList(["bind", "if", "ref", "repeat", "syntax"], T$2.StringL());
    },
    get C465() {
      return C[465] = dart.const(Object.setPrototypeOf({
      }, html$.Console.prototype));
    },
    get C466() {
      return C[466] = dart.const(Object.setPrototypeOf({
      }, html$._TrustedHtmlTreeSanitizer.prototype));
    },
    get C467() {
      return C[467] = dart.fn(html_common.convertNativeToDart_Dictionary, T$7.dynamicToMapNOfString$dynamic());
    },
    get C468() {
      return C[468] = dart.const(Object.setPrototypeOf({
        [types$0]: "num|String|bool|JSExtendableArray|=Object|Blob|File|NativeByteBuffer|NativeTypedData|MessagePort"
      }, _js_helper.Creates.prototype));
    },
    get C469() {
      return C[469] = dart.const(Object.setPrototypeOf({
        [types$1]: "num|String|bool|JSExtendableArray|=Object|Blob|File|NativeByteBuffer|NativeTypedData|MessagePort"
      }, _js_helper.Returns.prototype));
    },
    get C470() {
      return C[470] = dart.const(Object.setPrototypeOf({
        $ti: T$7.EventStreamProviderOfAudioProcessingEventL(),
        [S.EventStreamProvider__eventType]: "audioprocess"
      }, G$.EventStreamProviderOfAudioProcessingEventL().prototype));
    },
    get C471() {
      return C[471] = dart.const(Object.setPrototypeOf({
      }, core.IntegerDivisionByZeroException.prototype));
    },
    get C472() {
      return C[472] = dart.const(Object.setPrototypeOf({
        [_duration]: 0
      }, core.Duration.prototype));
    },
    get C473() {
      return C[473] = dart.constList([], T$.ObjectN());
    },
    get C474() {
      return C[474] = dart.constMap(T$.SymbolL(), T$.ObjectN(), []);
    },
    get C475() {
      return C[475] = dart.constList([], T$.ObjectL());
    },
    get C476() {
      return C[476] = dart.constMap(T$.SymbolL(), T$.ObjectL(), []);
    },
    get C477() {
      return C[477] = dart.const(Object.setPrototypeOf({
        [_StringStackTrace__stackTrace]: ""
      }, core._StringStackTrace.prototype));
    },
    get C478() {
      return C[478] = dart.const(new _internal.Symbol.new('unary-'));
    },
    get C479() {
      return C[479] = dart.const(new _internal.Symbol.new(''));
    },
    get C480() {
      return C[480] = dart.fn(core.Uri.decodeComponent, T$.StringToString());
    },
    get C481() {
      return C[481] = dart.constMap(T$2.StringL(), T$8.ListLOfStringL(), []);
    },
    get C482() {
      return C[482] = dart.fn(core._toUnmodifiableStringList, T$8.StringAndListOfStringToListOfString());
    },
    get C483() {
      return C[483] = dart.fn(core._Uri._createList, T$2.VoidToListOfString());
    },
    get C484() {
      return C[484] = dart.constList([0, 0, 24576, 1023, 65534, 34815, 65534, 18431], T$2.intL());
    },
    get C485() {
      return C[485] = dart.constList([0, 0, 26498, 1023, 65534, 34815, 65534, 18431], T$2.intL());
    },
    get C486() {
      return C[486] = dart.constList([0, 0, 65498, 45055, 65535, 34815, 65534, 18431], T$2.intL());
    },
    get C487() {
      return C[487] = dart.constList([0, 0, 26624, 1023, 65534, 2047, 65534, 2047], T$2.intL());
    },
    get C488() {
      return C[488] = dart.constList([0, 0, 32776, 33792, 1, 10240, 0, 0], T$2.intL());
    },
    get C489() {
      return C[489] = dart.constList([0, 0, 32722, 12287, 65534, 34815, 65534, 18431], T$2.intL());
    },
    get C490() {
      return C[490] = dart.constList([0, 0, 32754, 11263, 65534, 34815, 65534, 18431], T$2.intL());
    },
    get C491() {
      return C[491] = dart.constList([0, 0, 32722, 12287, 65535, 34815, 65534, 18431], T$2.intL());
    },
    get C492() {
      return C[492] = dart.constList([0, 0, 65490, 12287, 65535, 34815, 65534, 18431], T$2.intL());
    },
    get C493() {
      return C[493] = dart.constList([0, 0, 65490, 45055, 65535, 34815, 65534, 18431], T$2.intL());
    },
    get C494() {
      return C[494] = dart.constList([0, 0, 27858, 1023, 65534, 51199, 65535, 32767], T$2.intL());
    },
    get C495() {
      return C[495] = dart.constMap(T$2.StringL(), T$2.StringL(), []);
    },
    get C496() {
      return C[496] = dart.fn(core.DateTime['_#utc#tearOff'], T$8.intAndintAndint__ToDateTime());
    },
    get C497() {
      return C[497] = dart.fn(core.DateTime['_#new#tearOff'], T$8.intAndintAndint__ToDateTime());
    },
    get C498() {
      return C[498] = dart.const(Object.setPrototypeOf({
        [message$11]: "next release"
      }, core.Deprecated.prototype));
    },
    get C499() {
      return C[499] = dart.const(Object.setPrototypeOf({
      }, core._Override.prototype));
    },
    get C501() {
      return C[501] = dart.const(Object.setPrototypeOf({
        [_name$0]: "points",
        [index$]: 0
      }, ui.PointMode.prototype));
    },
    get C502() {
      return C[502] = dart.const(Object.setPrototypeOf({
        [_name$0]: "lines",
        [index$]: 1
      }, ui.PointMode.prototype));
    },
    get C503() {
      return C[503] = dart.const(Object.setPrototypeOf({
        [_name$0]: "polygon",
        [index$]: 2
      }, ui.PointMode.prototype));
    },
    get C500() {
      return C[500] = dart.constList([C[501] || CT.C501, C[502] || CT.C502, C[503] || CT.C503], T$8.PointModeL());
    },
    get C505() {
      return C[505] = dart.const(Object.setPrototypeOf({
        [_name$0]: "difference",
        [index$]: 0
      }, ui.ClipOp.prototype));
    },
    get C506() {
      return C[506] = dart.const(Object.setPrototypeOf({
        [_name$0]: "intersect",
        [index$]: 1
      }, ui.ClipOp.prototype));
    },
    get C504() {
      return C[504] = dart.constList([C[505] || CT.C505, C[506] || CT.C506], T$8.ClipOpL());
    },
    get C508() {
      return C[508] = dart.const(Object.setPrototypeOf({
        [_name$0]: "triangles",
        [index$]: 0
      }, ui.VertexMode.prototype));
    },
    get C509() {
      return C[509] = dart.const(Object.setPrototypeOf({
        [_name$0]: "triangleStrip",
        [index$]: 1
      }, ui.VertexMode.prototype));
    },
    get C510() {
      return C[510] = dart.const(Object.setPrototypeOf({
        [_name$0]: "triangleFan",
        [index$]: 2
      }, ui.VertexMode.prototype));
    },
    get C507() {
      return C[507] = dart.constList([C[508] || CT.C508, C[509] || CT.C509, C[510] || CT.C510], T$8.VertexModeL());
    },
    get C512() {
      return C[512] = dart.const(Object.setPrototypeOf({
        [_name$0]: "nonZero",
        [index$]: 0
      }, ui.PathFillType.prototype));
    },
    get C513() {
      return C[513] = dart.const(Object.setPrototypeOf({
        [_name$0]: "evenOdd",
        [index$]: 1
      }, ui.PathFillType.prototype));
    },
    get C511() {
      return C[511] = dart.constList([C[512] || CT.C512, C[513] || CT.C513], T$8.PathFillTypeL());
    },
    get C515() {
      return C[515] = dart.const(Object.setPrototypeOf({
        [_name$0]: "difference",
        [index$]: 0
      }, ui.PathOperation.prototype));
    },
    get C516() {
      return C[516] = dart.const(Object.setPrototypeOf({
        [_name$0]: "intersect",
        [index$]: 1
      }, ui.PathOperation.prototype));
    },
    get C517() {
      return C[517] = dart.const(Object.setPrototypeOf({
        [_name$0]: "union",
        [index$]: 2
      }, ui.PathOperation.prototype));
    },
    get C518() {
      return C[518] = dart.const(Object.setPrototypeOf({
        [_name$0]: "xor",
        [index$]: 3
      }, ui.PathOperation.prototype));
    },
    get C519() {
      return C[519] = dart.const(Object.setPrototypeOf({
        [_name$0]: "reverseDifference",
        [index$]: 4
      }, ui.PathOperation.prototype));
    },
    get C514() {
      return C[514] = dart.constList([C[515] || CT.C515, C[516] || CT.C516, C[517] || CT.C517, C[518] || CT.C518, C[519] || CT.C519], T$8.PathOperationL());
    },
    get C520() {
      return C[520] = dart.const(Object.setPrototypeOf({
        [_dy$]: 0,
        [_dx$]: 0
      }, ui.Offset.prototype));
    },
    get C521() {
      return C[521] = dart.const(Object.setPrototypeOf({
        [_dy$]: 1 / 0,
        [_dx$]: 1 / 0
      }, ui.Offset.prototype));
    },
    get C522() {
      return C[522] = dart.const(Object.setPrototypeOf({
        [_dy$]: 0,
        [_dx$]: 0
      }, ui.Size.prototype));
    },
    get C523() {
      return C[523] = dart.const(Object.setPrototypeOf({
        [_dy$]: 1 / 0,
        [_dx$]: 1 / 0
      }, ui.Size.prototype));
    },
    get C524() {
      return C[524] = dart.const(Object.setPrototypeOf({
        [bottom$]: 0,
        [right$]: 0,
        [top$1]: 0,
        [left$1]: 0
      }, ui.Rect.prototype));
    },
    get C525() {
      return C[525] = dart.const(Object.setPrototypeOf({
        [bottom$]: 1000000000,
        [right$]: 1000000000,
        [top$1]: -1000000000,
        [left$1]: -1000000000
      }, ui.Rect.prototype));
    },
    get C526() {
      return C[526] = dart.const(Object.setPrototypeOf({
        [y$3]: -1 / 0,
        [x$3]: -1 / 0
      }, ui.Radius.prototype));
    },
    get C527() {
      return C[527] = dart.const(Object.setPrototypeOf({
        [y$3]: 1 / 0,
        [x$3]: 1 / 0
      }, ui.Radius.prototype));
    },
    get C528() {
      return C[528] = dart.const(Object.setPrototypeOf({
        [y$3]: 0,
        [x$3]: 0
      }, ui.Radius.prototype));
    },
    get C529() {
      return C[529] = dart.const(Object.setPrototypeOf({
        [webOnlyUniformRadii]: false,
        [blRadiusY$]: 0,
        [blRadiusX$]: 0,
        [brRadiusY$]: 0,
        [brRadiusX$]: 0,
        [trRadiusY$]: 0,
        [trRadiusX$]: 0,
        [tlRadiusY$]: 0,
        [tlRadiusX$]: 0,
        [bottom$0]: 0,
        [right$0]: 0,
        [top$2]: 0,
        [left$2]: 0
      }, ui.RRect.prototype));
    },
    get C530() {
      return C[530] = dart.const(Object.setPrototypeOf({
        [_name$0]: "down",
        [index$]: 0
      }, ui.KeyEventType.prototype));
    },
    get C531() {
      return C[531] = dart.const(Object.setPrototypeOf({
        [_name$0]: "up",
        [index$]: 1
      }, ui.KeyEventType.prototype));
    },
    get C532() {
      return C[532] = dart.const(Object.setPrototypeOf({
        [_name$0]: "repeat",
        [index$]: 2
      }, ui.KeyEventType.prototype));
    },
    get C533() {
      return C[533] = dart.constList([C[530] || CT.C530, C[531] || CT.C531, C[532] || CT.C532], T$8.KeyEventTypeL());
    },
    get C534() {
      return C[534] = dart.const(Object.setPrototypeOf({
        [_name$0]: "keyboard",
        [index$]: 0
      }, ui.KeyEventDeviceType.prototype));
    },
    get C535() {
      return C[535] = dart.const(Object.setPrototypeOf({
        [_name$0]: "directionalPad",
        [index$]: 1
      }, ui.KeyEventDeviceType.prototype));
    },
    get C536() {
      return C[536] = dart.const(Object.setPrototypeOf({
        [_name$0]: "gamepad",
        [index$]: 2
      }, ui.KeyEventDeviceType.prototype));
    },
    get C537() {
      return C[537] = dart.const(Object.setPrototypeOf({
        [_name$0]: "joystick",
        [index$]: 3
      }, ui.KeyEventDeviceType.prototype));
    },
    get C538() {
      return C[538] = dart.const(Object.setPrototypeOf({
        [_name$0]: "hdmi",
        [index$]: 4
      }, ui.KeyEventDeviceType.prototype));
    },
    get C539() {
      return C[539] = dart.constList([C[534] || CT.C534, C[535] || CT.C535, C[536] || CT.C536, C[537] || CT.C537, C[538] || CT.C538], T$8.KeyEventDeviceTypeL());
    },
    get C541() {
      return C[541] = dart.const(Object.setPrototypeOf({
        [_name$0]: "butt",
        [index$]: 0
      }, ui.StrokeCap.prototype));
    },
    get C542() {
      return C[542] = dart.const(Object.setPrototypeOf({
        [_name$0]: "round",
        [index$]: 1
      }, ui.StrokeCap.prototype));
    },
    get C543() {
      return C[543] = dart.const(Object.setPrototypeOf({
        [_name$0]: "square",
        [index$]: 2
      }, ui.StrokeCap.prototype));
    },
    get C540() {
      return C[540] = dart.constList([C[541] || CT.C541, C[542] || CT.C542, C[543] || CT.C543], T$8.StrokeCapL());
    },
    get C545() {
      return C[545] = dart.const(Object.setPrototypeOf({
        [_name$0]: "miter",
        [index$]: 0
      }, ui.StrokeJoin.prototype));
    },
    get C546() {
      return C[546] = dart.const(Object.setPrototypeOf({
        [_name$0]: "round",
        [index$]: 1
      }, ui.StrokeJoin.prototype));
    },
    get C547() {
      return C[547] = dart.const(Object.setPrototypeOf({
        [_name$0]: "bevel",
        [index$]: 2
      }, ui.StrokeJoin.prototype));
    },
    get C544() {
      return C[544] = dart.constList([C[545] || CT.C545, C[546] || CT.C546, C[547] || CT.C547], T$8.StrokeJoinL());
    },
    get C549() {
      return C[549] = dart.const(Object.setPrototypeOf({
        [_name$0]: "fill",
        [index$]: 0
      }, ui.PaintingStyle.prototype));
    },
    get C550() {
      return C[550] = dart.const(Object.setPrototypeOf({
        [_name$0]: "stroke",
        [index$]: 1
      }, ui.PaintingStyle.prototype));
    },
    get C548() {
      return C[548] = dart.constList([C[549] || CT.C549, C[550] || CT.C550], T$8.PaintingStyleL());
    },
    get C552() {
      return C[552] = dart.const(Object.setPrototypeOf({
        [_name$0]: "clear",
        [index$]: 0
      }, ui.BlendMode.prototype));
    },
    get C553() {
      return C[553] = dart.const(Object.setPrototypeOf({
        [_name$0]: "src",
        [index$]: 1
      }, ui.BlendMode.prototype));
    },
    get C554() {
      return C[554] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dst",
        [index$]: 2
      }, ui.BlendMode.prototype));
    },
    get C555() {
      return C[555] = dart.const(Object.setPrototypeOf({
        [_name$0]: "srcOver",
        [index$]: 3
      }, ui.BlendMode.prototype));
    },
    get C556() {
      return C[556] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dstOver",
        [index$]: 4
      }, ui.BlendMode.prototype));
    },
    get C557() {
      return C[557] = dart.const(Object.setPrototypeOf({
        [_name$0]: "srcIn",
        [index$]: 5
      }, ui.BlendMode.prototype));
    },
    get C558() {
      return C[558] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dstIn",
        [index$]: 6
      }, ui.BlendMode.prototype));
    },
    get C559() {
      return C[559] = dart.const(Object.setPrototypeOf({
        [_name$0]: "srcOut",
        [index$]: 7
      }, ui.BlendMode.prototype));
    },
    get C560() {
      return C[560] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dstOut",
        [index$]: 8
      }, ui.BlendMode.prototype));
    },
    get C561() {
      return C[561] = dart.const(Object.setPrototypeOf({
        [_name$0]: "srcATop",
        [index$]: 9
      }, ui.BlendMode.prototype));
    },
    get C562() {
      return C[562] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dstATop",
        [index$]: 10
      }, ui.BlendMode.prototype));
    },
    get C563() {
      return C[563] = dart.const(Object.setPrototypeOf({
        [_name$0]: "xor",
        [index$]: 11
      }, ui.BlendMode.prototype));
    },
    get C564() {
      return C[564] = dart.const(Object.setPrototypeOf({
        [_name$0]: "plus",
        [index$]: 12
      }, ui.BlendMode.prototype));
    },
    get C565() {
      return C[565] = dart.const(Object.setPrototypeOf({
        [_name$0]: "modulate",
        [index$]: 13
      }, ui.BlendMode.prototype));
    },
    get C566() {
      return C[566] = dart.const(Object.setPrototypeOf({
        [_name$0]: "screen",
        [index$]: 14
      }, ui.BlendMode.prototype));
    },
    get C567() {
      return C[567] = dart.const(Object.setPrototypeOf({
        [_name$0]: "overlay",
        [index$]: 15
      }, ui.BlendMode.prototype));
    },
    get C568() {
      return C[568] = dart.const(Object.setPrototypeOf({
        [_name$0]: "darken",
        [index$]: 16
      }, ui.BlendMode.prototype));
    },
    get C569() {
      return C[569] = dart.const(Object.setPrototypeOf({
        [_name$0]: "lighten",
        [index$]: 17
      }, ui.BlendMode.prototype));
    },
    get C570() {
      return C[570] = dart.const(Object.setPrototypeOf({
        [_name$0]: "colorDodge",
        [index$]: 18
      }, ui.BlendMode.prototype));
    },
    get C571() {
      return C[571] = dart.const(Object.setPrototypeOf({
        [_name$0]: "colorBurn",
        [index$]: 19
      }, ui.BlendMode.prototype));
    },
    get C572() {
      return C[572] = dart.const(Object.setPrototypeOf({
        [_name$0]: "hardLight",
        [index$]: 20
      }, ui.BlendMode.prototype));
    },
    get C573() {
      return C[573] = dart.const(Object.setPrototypeOf({
        [_name$0]: "softLight",
        [index$]: 21
      }, ui.BlendMode.prototype));
    },
    get C574() {
      return C[574] = dart.const(Object.setPrototypeOf({
        [_name$0]: "difference",
        [index$]: 22
      }, ui.BlendMode.prototype));
    },
    get C575() {
      return C[575] = dart.const(Object.setPrototypeOf({
        [_name$0]: "exclusion",
        [index$]: 23
      }, ui.BlendMode.prototype));
    },
    get C576() {
      return C[576] = dart.const(Object.setPrototypeOf({
        [_name$0]: "multiply",
        [index$]: 24
      }, ui.BlendMode.prototype));
    },
    get C577() {
      return C[577] = dart.const(Object.setPrototypeOf({
        [_name$0]: "hue",
        [index$]: 25
      }, ui.BlendMode.prototype));
    },
    get C578() {
      return C[578] = dart.const(Object.setPrototypeOf({
        [_name$0]: "saturation",
        [index$]: 26
      }, ui.BlendMode.prototype));
    },
    get C579() {
      return C[579] = dart.const(Object.setPrototypeOf({
        [_name$0]: "color",
        [index$]: 27
      }, ui.BlendMode.prototype));
    },
    get C580() {
      return C[580] = dart.const(Object.setPrototypeOf({
        [_name$0]: "luminosity",
        [index$]: 28
      }, ui.BlendMode.prototype));
    },
    get C551() {
      return C[551] = dart.constList([C[552] || CT.C552, C[553] || CT.C553, C[554] || CT.C554, C[555] || CT.C555, C[556] || CT.C556, C[557] || CT.C557, C[558] || CT.C558, C[559] || CT.C559, C[560] || CT.C560, C[561] || CT.C561, C[562] || CT.C562, C[563] || CT.C563, C[564] || CT.C564, C[565] || CT.C565, C[566] || CT.C566, C[567] || CT.C567, C[568] || CT.C568, C[569] || CT.C569, C[570] || CT.C570, C[571] || CT.C571, C[572] || CT.C572, C[573] || CT.C573, C[574] || CT.C574, C[575] || CT.C575, C[576] || CT.C576, C[577] || CT.C577, C[578] || CT.C578, C[579] || CT.C579, C[580] || CT.C580], T$8.BlendModeL());
    },
    get C582() {
      return C[582] = dart.const(Object.setPrototypeOf({
        [_name$0]: "none",
        [index$]: 0
      }, ui.Clip.prototype));
    },
    get C583() {
      return C[583] = dart.const(Object.setPrototypeOf({
        [_name$0]: "hardEdge",
        [index$]: 1
      }, ui.Clip.prototype));
    },
    get C584() {
      return C[584] = dart.const(Object.setPrototypeOf({
        [_name$0]: "antiAlias",
        [index$]: 2
      }, ui.Clip.prototype));
    },
    get C585() {
      return C[585] = dart.const(Object.setPrototypeOf({
        [_name$0]: "antiAliasWithSaveLayer",
        [index$]: 3
      }, ui.Clip.prototype));
    },
    get C581() {
      return C[581] = dart.constList([C[582] || CT.C582, C[583] || CT.C583, C[584] || CT.C584, C[585] || CT.C585], T$8.ClipL());
    },
    get C586() {
      return C[586] = dart.const(Object.setPrototypeOf({
        [_name$0]: "clamp",
        [index$]: 0
      }, ui.TileMode.prototype));
    },
    get C588() {
      return C[588] = dart.const(Object.setPrototypeOf({
        [_name$0]: "normal",
        [index$]: 0
      }, ui.BlurStyle.prototype));
    },
    get C589() {
      return C[589] = dart.const(Object.setPrototypeOf({
        [_name$0]: "solid",
        [index$]: 1
      }, ui.BlurStyle.prototype));
    },
    get C590() {
      return C[590] = dart.const(Object.setPrototypeOf({
        [_name$0]: "outer",
        [index$]: 2
      }, ui.BlurStyle.prototype));
    },
    get C591() {
      return C[591] = dart.const(Object.setPrototypeOf({
        [_name$0]: "inner",
        [index$]: 3
      }, ui.BlurStyle.prototype));
    },
    get C587() {
      return C[587] = dart.constList([C[588] || CT.C588, C[589] || CT.C589, C[590] || CT.C590, C[591] || CT.C591], T$8.BlurStyleL());
    },
    get C593() {
      return C[593] = dart.const(Object.setPrototypeOf({
        [_name$0]: "none",
        [index$]: 0
      }, ui.FilterQuality.prototype));
    },
    get C594() {
      return C[594] = dart.const(Object.setPrototypeOf({
        [_name$0]: "low",
        [index$]: 1
      }, ui.FilterQuality.prototype));
    },
    get C595() {
      return C[595] = dart.const(Object.setPrototypeOf({
        [_name$0]: "medium",
        [index$]: 2
      }, ui.FilterQuality.prototype));
    },
    get C596() {
      return C[596] = dart.const(Object.setPrototypeOf({
        [_name$0]: "high",
        [index$]: 3
      }, ui.FilterQuality.prototype));
    },
    get C592() {
      return C[592] = dart.constList([C[593] || CT.C593, C[594] || CT.C594, C[595] || CT.C595, C[596] || CT.C596], T$9.FilterQualityL());
    },
    get C598() {
      return C[598] = dart.const(Object.setPrototypeOf({
        [_name$0]: "sRGB",
        [index$]: 0
      }, ui.ColorSpace.prototype));
    },
    get C599() {
      return C[599] = dart.const(Object.setPrototypeOf({
        [_name$0]: "extendedSRGB",
        [index$]: 1
      }, ui.ColorSpace.prototype));
    },
    get C597() {
      return C[597] = dart.constList([C[598] || CT.C598, C[599] || CT.C599], T$9.ColorSpaceL());
    },
    get C601() {
      return C[601] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rawRgba",
        [index$]: 0
      }, ui.ImageByteFormat.prototype));
    },
    get C602() {
      return C[602] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rawStraightRgba",
        [index$]: 1
      }, ui.ImageByteFormat.prototype));
    },
    get C603() {
      return C[603] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rawUnmodified",
        [index$]: 2
      }, ui.ImageByteFormat.prototype));
    },
    get C604() {
      return C[604] = dart.const(Object.setPrototypeOf({
        [_name$0]: "png",
        [index$]: 3
      }, ui.ImageByteFormat.prototype));
    },
    get C600() {
      return C[600] = dart.constList([C[601] || CT.C601, C[602] || CT.C602, C[603] || CT.C603, C[604] || CT.C604], T$9.ImageByteFormatL());
    },
    get C606() {
      return C[606] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rgba8888",
        [index$]: 0
      }, ui.PixelFormat.prototype));
    },
    get C607() {
      return C[607] = dart.const(Object.setPrototypeOf({
        [_name$0]: "bgra8888",
        [index$]: 1
      }, ui.PixelFormat.prototype));
    },
    get C608() {
      return C[608] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rgbaFloat32",
        [index$]: 2
      }, ui.PixelFormat.prototype));
    },
    get C605() {
      return C[605] = dart.constList([C[606] || CT.C606, C[607] || CT.C607, C[608] || CT.C608], T$9.PixelFormatL());
    },
    get C609() {
      return C[609] = dart.const(Object.setPrototypeOf({
        [value$4]: 4278190080.0
      }, ui.Color.prototype));
    },
    get C611() {
      return C[611] = dart.const(Object.setPrototypeOf({
        [_name$0]: "vsyncStart",
        [index$]: 0
      }, ui.FramePhase.prototype));
    },
    get C612() {
      return C[612] = dart.const(Object.setPrototypeOf({
        [_name$0]: "buildStart",
        [index$]: 1
      }, ui.FramePhase.prototype));
    },
    get C613() {
      return C[613] = dart.const(Object.setPrototypeOf({
        [_name$0]: "buildFinish",
        [index$]: 2
      }, ui.FramePhase.prototype));
    },
    get C614() {
      return C[614] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rasterStart",
        [index$]: 3
      }, ui.FramePhase.prototype));
    },
    get C615() {
      return C[615] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rasterFinish",
        [index$]: 4
      }, ui.FramePhase.prototype));
    },
    get C616() {
      return C[616] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rasterFinishWallTime",
        [index$]: 5
      }, ui.FramePhase.prototype));
    },
    get C610() {
      return C[610] = dart.constList([C[611] || CT.C611, C[612] || CT.C612, C[613] || CT.C613, C[614] || CT.C614, C[615] || CT.C615, C[616] || CT.C616], T$9.FramePhaseL());
    },
    get C618() {
      return C[618] = dart.const(Object.setPrototypeOf({
        [_name$0]: "layerCacheCount",
        [index$]: 0
      }, ui._FrameTimingInfo.prototype));
    },
    get C619() {
      return C[619] = dart.const(Object.setPrototypeOf({
        [_name$0]: "layerCacheBytes",
        [index$]: 1
      }, ui._FrameTimingInfo.prototype));
    },
    get C620() {
      return C[620] = dart.const(Object.setPrototypeOf({
        [_name$0]: "pictureCacheCount",
        [index$]: 2
      }, ui._FrameTimingInfo.prototype));
    },
    get C621() {
      return C[621] = dart.const(Object.setPrototypeOf({
        [_name$0]: "pictureCacheBytes",
        [index$]: 3
      }, ui._FrameTimingInfo.prototype));
    },
    get C622() {
      return C[622] = dart.const(Object.setPrototypeOf({
        [_name$0]: "frameNumber",
        [index$]: 4
      }, ui._FrameTimingInfo.prototype));
    },
    get C617() {
      return C[617] = dart.constList([C[618] || CT.C618, C[619] || CT.C619, C[620] || CT.C620, C[621] || CT.C621, C[622] || CT.C622], T$9._FrameTimingInfoL());
    },
    get C624() {
      return C[624] = dart.const(Object.setPrototypeOf({
        [_name$0]: "detached",
        [index$]: 0
      }, ui.AppLifecycleState.prototype));
    },
    get C625() {
      return C[625] = dart.const(Object.setPrototypeOf({
        [_name$0]: "resumed",
        [index$]: 1
      }, ui.AppLifecycleState.prototype));
    },
    get C626() {
      return C[626] = dart.const(Object.setPrototypeOf({
        [_name$0]: "inactive",
        [index$]: 2
      }, ui.AppLifecycleState.prototype));
    },
    get C627() {
      return C[627] = dart.const(Object.setPrototypeOf({
        [_name$0]: "hidden",
        [index$]: 3
      }, ui.AppLifecycleState.prototype));
    },
    get C628() {
      return C[628] = dart.const(Object.setPrototypeOf({
        [_name$0]: "paused",
        [index$]: 4
      }, ui.AppLifecycleState.prototype));
    },
    get C623() {
      return C[623] = dart.constList([C[624] || CT.C624, C[625] || CT.C625, C[626] || CT.C626, C[627] || CT.C627, C[628] || CT.C628], T$9.AppLifecycleStateL());
    },
    get C630() {
      return C[630] = dart.const(Object.setPrototypeOf({
        [_name$0]: "exit",
        [index$]: 0
      }, ui.AppExitResponse.prototype));
    },
    get C631() {
      return C[631] = dart.const(Object.setPrototypeOf({
        [_name$0]: "cancel",
        [index$]: 1
      }, ui.AppExitResponse.prototype));
    },
    get C629() {
      return C[629] = dart.constList([C[630] || CT.C630, C[631] || CT.C631], T$9.AppExitResponseL());
    },
    get C633() {
      return C[633] = dart.const(Object.setPrototypeOf({
        [_name$0]: "cancelable",
        [index$]: 0
      }, ui.AppExitType.prototype));
    },
    get C634() {
      return C[634] = dart.const(Object.setPrototypeOf({
        [_name$0]: "required",
        [index$]: 1
      }, ui.AppExitType.prototype));
    },
    get C632() {
      return C[632] = dart.constList([C[633] || CT.C633, C[634] || CT.C634], T$9.AppExitTypeL());
    },
    get C635() {
      return C[635] = dart.const(Object.setPrototypeOf({
        [ViewPadding_bottom]: 0,
        [ViewPadding_right]: 0,
        [ViewPadding_top]: 0,
        [ViewPadding_left]: 0
      }, _engine.ViewPadding.prototype));
    },
    get C637() {
      return C[637] = dart.const(Object.setPrototypeOf({
        [_name$0]: "unknown",
        [index$]: 0
      }, ui.DisplayFeatureType.prototype));
    },
    get C638() {
      return C[638] = dart.const(Object.setPrototypeOf({
        [_name$0]: "fold",
        [index$]: 1
      }, ui.DisplayFeatureType.prototype));
    },
    get C639() {
      return C[639] = dart.const(Object.setPrototypeOf({
        [_name$0]: "hinge",
        [index$]: 2
      }, ui.DisplayFeatureType.prototype));
    },
    get C640() {
      return C[640] = dart.const(Object.setPrototypeOf({
        [_name$0]: "cutout",
        [index$]: 3
      }, ui.DisplayFeatureType.prototype));
    },
    get C636() {
      return C[636] = dart.constList([C[637] || CT.C637, C[638] || CT.C638, C[639] || CT.C639, C[640] || CT.C640], T$9.DisplayFeatureTypeL());
    },
    get C642() {
      return C[642] = dart.const(Object.setPrototypeOf({
        [_name$0]: "unknown",
        [index$]: 0
      }, ui.DisplayFeatureState.prototype));
    },
    get C643() {
      return C[643] = dart.const(Object.setPrototypeOf({
        [_name$0]: "postureFlat",
        [index$]: 1
      }, ui.DisplayFeatureState.prototype));
    },
    get C644() {
      return C[644] = dart.const(Object.setPrototypeOf({
        [_name$0]: "postureHalfOpened",
        [index$]: 2
      }, ui.DisplayFeatureState.prototype));
    },
    get C645() {
      return C[645] = dart.const(Object.setPrototypeOf({
        [_name$0]: "postureFlipped",
        [index$]: 3
      }, ui.DisplayFeatureState.prototype));
    },
    get C641() {
      return C[641] = dart.constList([C[642] || CT.C642, C[643] || CT.C643, C[644] || CT.C644, C[645] || CT.C645], T$9.DisplayFeatureStateL());
    },
    get C646() {
      return C[646] = dart.constMap(T$2.StringL(), T$2.StringL(), ["in", "id", "iw", "he", "ji", "yi", "jw", "jv", "mo", "ro", "aam", "aas", "adp", "dz", "aue", "ktz", "ayx", "nun", "bgm", "bcg", "bjd", "drl", "ccq", "rki", "cjr", "mom", "cka", "cmr", "cmk", "xch", "coy", "pij", "cqu", "quh", "drh", "khk", "drw", "prs", "gav", "dev", "gfx", "vaj", "ggn", "gvr", "gti", "nyc", "guv", "duz", "hrr", "jal", "ibi", "opa", "ilw", "gal", "jeg", "oyb", "kgc", "tdf", "kgh", "kml", "koj", "kwv", "krm", "bmf", "ktr", "dtp", "kvs", "gdj", "kwq", "yam", "kxe", "tvd", "kzj", "dtp", "kzt", "dtp", "lii", "raq", "lmm", "rmx", "meg", "cir", "mst", "mry", "mwj", "vaj", "myt", "mry", "nad", "xny", "ncp", "kdz", "nnx", "ngv", "nts", "pij", "oun", "vaj", "pcr", "adx", "pmc", "huw", "pmu", "phr", "ppa", "bfy", "ppr", "lcq", "pry", "prt", "puz", "pub", "sca", "hle", "skk", "oyb", "tdu", "dtp", "thc", "tpo", "thx", "oyb", "tie", "ras", "tkk", "twm", "tlw", "weo", "tmp", "tyj", "tne", "kak", "tnf", "prs", "tsf", "taj", "uok", "ema", "xba", "cax", "xia", "acn", "xkh", "waw", "xsj", "suj", "ybd", "rki", "yma", "lrr", "ymt", "mtm", "yos", "zom", "yuu", "yug"]);
    },
    get C647() {
      return C[647] = dart.constMap(T$2.StringL(), T$2.StringL(), ["BU", "MM", "DD", "DE", "FX", "FR", "TP", "TL", "YD", "YE", "ZR", "CD"]);
    },
    get C649() {
      return C[649] = dart.const(Object.setPrototypeOf({
        [_name$0]: "balanced",
        [index$]: 0
      }, ui.DartPerformanceMode.prototype));
    },
    get C650() {
      return C[650] = dart.const(Object.setPrototypeOf({
        [_name$0]: "latency",
        [index$]: 1
      }, ui.DartPerformanceMode.prototype));
    },
    get C651() {
      return C[651] = dart.const(Object.setPrototypeOf({
        [_name$0]: "throughput",
        [index$]: 2
      }, ui.DartPerformanceMode.prototype));
    },
    get C652() {
      return C[652] = dart.const(Object.setPrototypeOf({
        [_name$0]: "memory",
        [index$]: 3
      }, ui.DartPerformanceMode.prototype));
    },
    get C648() {
      return C[648] = dart.constList([C[649] || CT.C649, C[650] || CT.C650, C[651] || CT.C651, C[652] || CT.C652], T$9.DartPerformanceModeL());
    },
    get C653() {
      return C[653] = dart.const(Object.setPrototypeOf({
      }, core.Object.prototype));
    },
    get C655() {
      return C[655] = dart.const(Object.setPrototypeOf({
        [_name$0]: "unfocused",
        [index$]: 0
      }, ui.ViewFocusState.prototype));
    },
    get C656() {
      return C[656] = dart.const(Object.setPrototypeOf({
        [_name$0]: "focused",
        [index$]: 1
      }, ui.ViewFocusState.prototype));
    },
    get C654() {
      return C[654] = dart.constList([C[655] || CT.C655, C[656] || CT.C656], T$9.ViewFocusStateL());
    },
    get C658() {
      return C[658] = dart.const(Object.setPrototypeOf({
        [_name$0]: "undefined",
        [index$]: 0
      }, ui.ViewFocusDirection.prototype));
    },
    get C659() {
      return C[659] = dart.const(Object.setPrototypeOf({
        [_name$0]: "forward",
        [index$]: 1
      }, ui.ViewFocusDirection.prototype));
    },
    get C660() {
      return C[660] = dart.const(Object.setPrototypeOf({
        [_name$0]: "backward",
        [index$]: 2
      }, ui.ViewFocusDirection.prototype));
    },
    get C657() {
      return C[657] = dart.constList([C[658] || CT.C658, C[659] || CT.C659, C[660] || CT.C660], T$9.ViewFocusDirectionL());
    },
    get C662() {
      return C[662] = dart.const(Object.setPrototypeOf({
        [_name$0]: "cancel",
        [index$]: 0
      }, ui.PointerChange.prototype));
    },
    get C663() {
      return C[663] = dart.const(Object.setPrototypeOf({
        [_name$0]: "add",
        [index$]: 1
      }, ui.PointerChange.prototype));
    },
    get C664() {
      return C[664] = dart.const(Object.setPrototypeOf({
        [_name$0]: "remove",
        [index$]: 2
      }, ui.PointerChange.prototype));
    },
    get C665() {
      return C[665] = dart.const(Object.setPrototypeOf({
        [_name$0]: "hover",
        [index$]: 3
      }, ui.PointerChange.prototype));
    },
    get C666() {
      return C[666] = dart.const(Object.setPrototypeOf({
        [_name$0]: "down",
        [index$]: 4
      }, ui.PointerChange.prototype));
    },
    get C667() {
      return C[667] = dart.const(Object.setPrototypeOf({
        [_name$0]: "move",
        [index$]: 5
      }, ui.PointerChange.prototype));
    },
    get C668() {
      return C[668] = dart.const(Object.setPrototypeOf({
        [_name$0]: "up",
        [index$]: 6
      }, ui.PointerChange.prototype));
    },
    get C669() {
      return C[669] = dart.const(Object.setPrototypeOf({
        [_name$0]: "panZoomStart",
        [index$]: 7
      }, ui.PointerChange.prototype));
    },
    get C670() {
      return C[670] = dart.const(Object.setPrototypeOf({
        [_name$0]: "panZoomUpdate",
        [index$]: 8
      }, ui.PointerChange.prototype));
    },
    get C671() {
      return C[671] = dart.const(Object.setPrototypeOf({
        [_name$0]: "panZoomEnd",
        [index$]: 9
      }, ui.PointerChange.prototype));
    },
    get C661() {
      return C[661] = dart.constList([C[662] || CT.C662, C[663] || CT.C663, C[664] || CT.C664, C[665] || CT.C665, C[666] || CT.C666, C[667] || CT.C667, C[668] || CT.C668, C[669] || CT.C669, C[670] || CT.C670, C[671] || CT.C671], T$9.PointerChangeL());
    },
    get C673() {
      return C[673] = dart.const(Object.setPrototypeOf({
        [_name$0]: "touch",
        [index$]: 0
      }, ui.PointerDeviceKind.prototype));
    },
    get C674() {
      return C[674] = dart.const(Object.setPrototypeOf({
        [_name$0]: "mouse",
        [index$]: 1
      }, ui.PointerDeviceKind.prototype));
    },
    get C675() {
      return C[675] = dart.const(Object.setPrototypeOf({
        [_name$0]: "stylus",
        [index$]: 2
      }, ui.PointerDeviceKind.prototype));
    },
    get C676() {
      return C[676] = dart.const(Object.setPrototypeOf({
        [_name$0]: "invertedStylus",
        [index$]: 3
      }, ui.PointerDeviceKind.prototype));
    },
    get C677() {
      return C[677] = dart.const(Object.setPrototypeOf({
        [_name$0]: "trackpad",
        [index$]: 4
      }, ui.PointerDeviceKind.prototype));
    },
    get C678() {
      return C[678] = dart.const(Object.setPrototypeOf({
        [_name$0]: "unknown",
        [index$]: 5
      }, ui.PointerDeviceKind.prototype));
    },
    get C672() {
      return C[672] = dart.constList([C[673] || CT.C673, C[674] || CT.C674, C[675] || CT.C675, C[676] || CT.C676, C[677] || CT.C677, C[678] || CT.C678], T$9.PointerDeviceKindL());
    },
    get C680() {
      return C[680] = dart.const(Object.setPrototypeOf({
        [_name$0]: "none",
        [index$]: 0
      }, ui.PointerSignalKind.prototype));
    },
    get C681() {
      return C[681] = dart.const(Object.setPrototypeOf({
        [_name$0]: "scroll",
        [index$]: 1
      }, ui.PointerSignalKind.prototype));
    },
    get C682() {
      return C[682] = dart.const(Object.setPrototypeOf({
        [_name$0]: "scrollInertiaCancel",
        [index$]: 2
      }, ui.PointerSignalKind.prototype));
    },
    get C683() {
      return C[683] = dart.const(Object.setPrototypeOf({
        [_name$0]: "scale",
        [index$]: 3
      }, ui.PointerSignalKind.prototype));
    },
    get C684() {
      return C[684] = dart.const(Object.setPrototypeOf({
        [_name$0]: "unknown",
        [index$]: 4
      }, ui.PointerSignalKind.prototype));
    },
    get C679() {
      return C[679] = dart.constList([C[680] || CT.C680, C[681] || CT.C681, C[682] || CT.C682, C[683] || CT.C683, C[684] || CT.C684], T$9.PointerSignalKindL());
    },
    get C685() {
      return C[685] = dart.constList([], T$9.PointerDataL());
    },
    get C686() {
      return C[686] = dart.const(Object.setPrototypeOf({
        [name$17]: "tap",
        [index$0]: 1
      }, ui.SemanticsAction.prototype));
    },
    get C687() {
      return C[687] = dart.const(Object.setPrototypeOf({
        [name$17]: "longPress",
        [index$0]: 2
      }, ui.SemanticsAction.prototype));
    },
    get C688() {
      return C[688] = dart.const(Object.setPrototypeOf({
        [name$17]: "scrollLeft",
        [index$0]: 4
      }, ui.SemanticsAction.prototype));
    },
    get C689() {
      return C[689] = dart.const(Object.setPrototypeOf({
        [name$17]: "scrollRight",
        [index$0]: 8
      }, ui.SemanticsAction.prototype));
    },
    get C690() {
      return C[690] = dart.const(Object.setPrototypeOf({
        [name$17]: "scrollUp",
        [index$0]: 16
      }, ui.SemanticsAction.prototype));
    },
    get C691() {
      return C[691] = dart.const(Object.setPrototypeOf({
        [name$17]: "scrollDown",
        [index$0]: 32
      }, ui.SemanticsAction.prototype));
    },
    get C692() {
      return C[692] = dart.const(Object.setPrototypeOf({
        [name$17]: "increase",
        [index$0]: 64
      }, ui.SemanticsAction.prototype));
    },
    get C693() {
      return C[693] = dart.const(Object.setPrototypeOf({
        [name$17]: "decrease",
        [index$0]: 128
      }, ui.SemanticsAction.prototype));
    },
    get C694() {
      return C[694] = dart.const(Object.setPrototypeOf({
        [name$17]: "showOnScreen",
        [index$0]: 256
      }, ui.SemanticsAction.prototype));
    },
    get C695() {
      return C[695] = dart.const(Object.setPrototypeOf({
        [name$17]: "moveCursorForwardByCharacter",
        [index$0]: 512
      }, ui.SemanticsAction.prototype));
    },
    get C696() {
      return C[696] = dart.const(Object.setPrototypeOf({
        [name$17]: "moveCursorBackwardByCharacter",
        [index$0]: 1024
      }, ui.SemanticsAction.prototype));
    },
    get C697() {
      return C[697] = dart.const(Object.setPrototypeOf({
        [name$17]: "setText",
        [index$0]: 2097152
      }, ui.SemanticsAction.prototype));
    },
    get C698() {
      return C[698] = dart.const(Object.setPrototypeOf({
        [name$17]: "setSelection",
        [index$0]: 2048
      }, ui.SemanticsAction.prototype));
    },
    get C699() {
      return C[699] = dart.const(Object.setPrototypeOf({
        [name$17]: "copy",
        [index$0]: 4096
      }, ui.SemanticsAction.prototype));
    },
    get C700() {
      return C[700] = dart.const(Object.setPrototypeOf({
        [name$17]: "cut",
        [index$0]: 8192
      }, ui.SemanticsAction.prototype));
    },
    get C701() {
      return C[701] = dart.const(Object.setPrototypeOf({
        [name$17]: "paste",
        [index$0]: 16384
      }, ui.SemanticsAction.prototype));
    },
    get C702() {
      return C[702] = dart.const(Object.setPrototypeOf({
        [name$17]: "didGainAccessibilityFocus",
        [index$0]: 32768
      }, ui.SemanticsAction.prototype));
    },
    get C703() {
      return C[703] = dart.const(Object.setPrototypeOf({
        [name$17]: "didLoseAccessibilityFocus",
        [index$0]: 65536
      }, ui.SemanticsAction.prototype));
    },
    get C704() {
      return C[704] = dart.const(Object.setPrototypeOf({
        [name$17]: "customAction",
        [index$0]: 131072
      }, ui.SemanticsAction.prototype));
    },
    get C705() {
      return C[705] = dart.const(Object.setPrototypeOf({
        [name$17]: "dismiss",
        [index$0]: 262144
      }, ui.SemanticsAction.prototype));
    },
    get C706() {
      return C[706] = dart.const(Object.setPrototypeOf({
        [name$17]: "moveCursorForwardByWord",
        [index$0]: 524288
      }, ui.SemanticsAction.prototype));
    },
    get C707() {
      return C[707] = dart.const(Object.setPrototypeOf({
        [name$17]: "moveCursorBackwardByWord",
        [index$0]: 1048576
      }, ui.SemanticsAction.prototype));
    },
    get C708() {
      return C[708] = dart.const(Object.setPrototypeOf({
        [name$17]: "focus",
        [index$0]: 4194304
      }, ui.SemanticsAction.prototype));
    },
    get C709() {
      return C[709] = dart.constMap(T$2.intL(), T$9.SemanticsActionL(), [1, C[686] || CT.C686, 2, C[687] || CT.C687, 4, C[688] || CT.C688, 8, C[689] || CT.C689, 16, C[690] || CT.C690, 32, C[691] || CT.C691, 64, C[692] || CT.C692, 128, C[693] || CT.C693, 256, C[694] || CT.C694, 512, C[695] || CT.C695, 1024, C[696] || CT.C696, 2048, C[698] || CT.C698, 4096, C[699] || CT.C699, 8192, C[700] || CT.C700, 16384, C[701] || CT.C701, 32768, C[702] || CT.C702, 65536, C[703] || CT.C703, 131072, C[704] || CT.C704, 262144, C[705] || CT.C705, 524288, C[706] || CT.C706, 1048576, C[707] || CT.C707, 2097152, C[697] || CT.C697, 4194304, C[708] || CT.C708]);
    },
    get C710() {
      return C[710] = dart.const(Object.setPrototypeOf({
        [name$18]: "hasCheckedState",
        [index$1]: 1
      }, ui.SemanticsFlag.prototype));
    },
    get C711() {
      return C[711] = dart.const(Object.setPrototypeOf({
        [name$18]: "isChecked",
        [index$1]: 2
      }, ui.SemanticsFlag.prototype));
    },
    get C712() {
      return C[712] = dart.const(Object.setPrototypeOf({
        [name$18]: "isSelected",
        [index$1]: 4
      }, ui.SemanticsFlag.prototype));
    },
    get C713() {
      return C[713] = dart.const(Object.setPrototypeOf({
        [name$18]: "isButton",
        [index$1]: 8
      }, ui.SemanticsFlag.prototype));
    },
    get C714() {
      return C[714] = dart.const(Object.setPrototypeOf({
        [name$18]: "isTextField",
        [index$1]: 16
      }, ui.SemanticsFlag.prototype));
    },
    get C715() {
      return C[715] = dart.const(Object.setPrototypeOf({
        [name$18]: "isSlider",
        [index$1]: 8388608
      }, ui.SemanticsFlag.prototype));
    },
    get C716() {
      return C[716] = dart.const(Object.setPrototypeOf({
        [name$18]: "isKeyboardKey",
        [index$1]: 16777216
      }, ui.SemanticsFlag.prototype));
    },
    get C717() {
      return C[717] = dart.const(Object.setPrototypeOf({
        [name$18]: "isReadOnly",
        [index$1]: 1048576
      }, ui.SemanticsFlag.prototype));
    },
    get C718() {
      return C[718] = dart.const(Object.setPrototypeOf({
        [name$18]: "isLink",
        [index$1]: 4194304
      }, ui.SemanticsFlag.prototype));
    },
    get C719() {
      return C[719] = dart.const(Object.setPrototypeOf({
        [name$18]: "isFocusable",
        [index$1]: 2097152
      }, ui.SemanticsFlag.prototype));
    },
    get C720() {
      return C[720] = dart.const(Object.setPrototypeOf({
        [name$18]: "isFocused",
        [index$1]: 32
      }, ui.SemanticsFlag.prototype));
    },
    get C721() {
      return C[721] = dart.const(Object.setPrototypeOf({
        [name$18]: "hasEnabledState",
        [index$1]: 64
      }, ui.SemanticsFlag.prototype));
    },
    get C722() {
      return C[722] = dart.const(Object.setPrototypeOf({
        [name$18]: "isEnabled",
        [index$1]: 128
      }, ui.SemanticsFlag.prototype));
    },
    get C723() {
      return C[723] = dart.const(Object.setPrototypeOf({
        [name$18]: "isInMutuallyExclusiveGroup",
        [index$1]: 256
      }, ui.SemanticsFlag.prototype));
    },
    get C724() {
      return C[724] = dart.const(Object.setPrototypeOf({
        [name$18]: "isHeader",
        [index$1]: 512
      }, ui.SemanticsFlag.prototype));
    },
    get C725() {
      return C[725] = dart.const(Object.setPrototypeOf({
        [name$18]: "isObscured",
        [index$1]: 1024
      }, ui.SemanticsFlag.prototype));
    },
    get C726() {
      return C[726] = dart.const(Object.setPrototypeOf({
        [name$18]: "isMultiline",
        [index$1]: 524288
      }, ui.SemanticsFlag.prototype));
    },
    get C727() {
      return C[727] = dart.const(Object.setPrototypeOf({
        [name$18]: "scopesRoute",
        [index$1]: 2048
      }, ui.SemanticsFlag.prototype));
    },
    get C728() {
      return C[728] = dart.const(Object.setPrototypeOf({
        [name$18]: "namesRoute",
        [index$1]: 4096
      }, ui.SemanticsFlag.prototype));
    },
    get C729() {
      return C[729] = dart.const(Object.setPrototypeOf({
        [name$18]: "isHidden",
        [index$1]: 8192
      }, ui.SemanticsFlag.prototype));
    },
    get C730() {
      return C[730] = dart.const(Object.setPrototypeOf({
        [name$18]: "isImage",
        [index$1]: 16384
      }, ui.SemanticsFlag.prototype));
    },
    get C731() {
      return C[731] = dart.const(Object.setPrototypeOf({
        [name$18]: "isLiveRegion",
        [index$1]: 32768
      }, ui.SemanticsFlag.prototype));
    },
    get C732() {
      return C[732] = dart.const(Object.setPrototypeOf({
        [name$18]: "hasToggledState",
        [index$1]: 65536
      }, ui.SemanticsFlag.prototype));
    },
    get C733() {
      return C[733] = dart.const(Object.setPrototypeOf({
        [name$18]: "isToggled",
        [index$1]: 131072
      }, ui.SemanticsFlag.prototype));
    },
    get C734() {
      return C[734] = dart.const(Object.setPrototypeOf({
        [name$18]: "hasImplicitScrolling",
        [index$1]: 262144
      }, ui.SemanticsFlag.prototype));
    },
    get C735() {
      return C[735] = dart.const(Object.setPrototypeOf({
        [name$18]: "isCheckStateMixed",
        [index$1]: 33554432
      }, ui.SemanticsFlag.prototype));
    },
    get C736() {
      return C[736] = dart.const(Object.setPrototypeOf({
        [name$18]: "hasExpandedState",
        [index$1]: 67108864
      }, ui.SemanticsFlag.prototype));
    },
    get C737() {
      return C[737] = dart.const(Object.setPrototypeOf({
        [name$18]: "isExpanded",
        [index$1]: 134217728
      }, ui.SemanticsFlag.prototype));
    },
    get C738() {
      return C[738] = dart.constMap(T$2.intL(), T$9.SemanticsFlagL(), [1, C[710] || CT.C710, 2, C[711] || CT.C711, 4, C[712] || CT.C712, 8, C[713] || CT.C713, 16, C[714] || CT.C714, 32, C[720] || CT.C720, 64, C[721] || CT.C721, 128, C[722] || CT.C722, 256, C[723] || CT.C723, 512, C[724] || CT.C724, 1024, C[725] || CT.C725, 2048, C[727] || CT.C727, 4096, C[728] || CT.C728, 8192, C[729] || CT.C729, 16384, C[730] || CT.C730, 32768, C[731] || CT.C731, 65536, C[732] || CT.C732, 131072, C[733] || CT.C733, 262144, C[734] || CT.C734, 524288, C[726] || CT.C726, 1048576, C[717] || CT.C717, 2097152, C[719] || CT.C719, 4194304, C[718] || CT.C718, 8388608, C[715] || CT.C715, 16777216, C[716] || CT.C716, 33554432, C[735] || CT.C735, 67108864, C[736] || CT.C736, 134217728, C[737] || CT.C737]);
    },
    get C740() {
      return C[740] = dart.const(Object.setPrototypeOf({
        [_name$0]: "normal",
        [index$]: 0
      }, ui.FontStyle.prototype));
    },
    get C741() {
      return C[741] = dart.const(Object.setPrototypeOf({
        [_name$0]: "italic",
        [index$]: 1
      }, ui.FontStyle.prototype));
    },
    get C739() {
      return C[739] = dart.constList([C[740] || CT.C740, C[741] || CT.C741], T$9.FontStyleL());
    },
    get C743() {
      return C[743] = dart.const(Object.setPrototypeOf({
        [_name$0]: "baseline",
        [index$]: 0
      }, ui.PlaceholderAlignment.prototype));
    },
    get C744() {
      return C[744] = dart.const(Object.setPrototypeOf({
        [_name$0]: "aboveBaseline",
        [index$]: 1
      }, ui.PlaceholderAlignment.prototype));
    },
    get C745() {
      return C[745] = dart.const(Object.setPrototypeOf({
        [_name$0]: "belowBaseline",
        [index$]: 2
      }, ui.PlaceholderAlignment.prototype));
    },
    get C746() {
      return C[746] = dart.const(Object.setPrototypeOf({
        [_name$0]: "top",
        [index$]: 3
      }, ui.PlaceholderAlignment.prototype));
    },
    get C747() {
      return C[747] = dart.const(Object.setPrototypeOf({
        [_name$0]: "bottom",
        [index$]: 4
      }, ui.PlaceholderAlignment.prototype));
    },
    get C748() {
      return C[748] = dart.const(Object.setPrototypeOf({
        [_name$0]: "middle",
        [index$]: 5
      }, ui.PlaceholderAlignment.prototype));
    },
    get C742() {
      return C[742] = dart.constList([C[743] || CT.C743, C[744] || CT.C744, C[745] || CT.C745, C[746] || CT.C746, C[747] || CT.C747, C[748] || CT.C748], T$9.PlaceholderAlignmentL());
    },
    get C749() {
      return C[749] = dart.constMap(T$2.intL(), T$2.StringL(), [0, "FontWeight.w100", 1, "FontWeight.w200", 2, "FontWeight.w300", 3, "FontWeight.w400", 4, "FontWeight.w500", 5, "FontWeight.w600", 6, "FontWeight.w700", 7, "FontWeight.w800", 8, "FontWeight.w900"]);
    },
    get C750() {
      return C[750] = dart.const(Object.setPrototypeOf({
        [value$5]: 100,
        [index$2]: 0
      }, ui.FontWeight.prototype));
    },
    get C751() {
      return C[751] = dart.const(Object.setPrototypeOf({
        [value$5]: 200,
        [index$2]: 1
      }, ui.FontWeight.prototype));
    },
    get C752() {
      return C[752] = dart.const(Object.setPrototypeOf({
        [value$5]: 300,
        [index$2]: 2
      }, ui.FontWeight.prototype));
    },
    get C753() {
      return C[753] = dart.const(Object.setPrototypeOf({
        [value$5]: 400,
        [index$2]: 3
      }, ui.FontWeight.prototype));
    },
    get C754() {
      return C[754] = dart.const(Object.setPrototypeOf({
        [value$5]: 500,
        [index$2]: 4
      }, ui.FontWeight.prototype));
    },
    get C755() {
      return C[755] = dart.const(Object.setPrototypeOf({
        [value$5]: 600,
        [index$2]: 5
      }, ui.FontWeight.prototype));
    },
    get C756() {
      return C[756] = dart.const(Object.setPrototypeOf({
        [value$5]: 700,
        [index$2]: 6
      }, ui.FontWeight.prototype));
    },
    get C757() {
      return C[757] = dart.const(Object.setPrototypeOf({
        [value$5]: 800,
        [index$2]: 7
      }, ui.FontWeight.prototype));
    },
    get C758() {
      return C[758] = dart.const(Object.setPrototypeOf({
        [value$5]: 900,
        [index$2]: 8
      }, ui.FontWeight.prototype));
    },
    get C759() {
      return C[759] = dart.constList([C[750] || CT.C750, C[751] || CT.C751, C[752] || CT.C752, C[753] || CT.C753, C[754] || CT.C754, C[755] || CT.C755, C[756] || CT.C756, C[757] || CT.C757, C[758] || CT.C758], T$9.FontWeightL());
    },
    get C761() {
      return C[761] = dart.const(Object.setPrototypeOf({
        [_name$0]: "left",
        [index$]: 0
      }, ui.TextAlign.prototype));
    },
    get C762() {
      return C[762] = dart.const(Object.setPrototypeOf({
        [_name$0]: "right",
        [index$]: 1
      }, ui.TextAlign.prototype));
    },
    get C763() {
      return C[763] = dart.const(Object.setPrototypeOf({
        [_name$0]: "center",
        [index$]: 2
      }, ui.TextAlign.prototype));
    },
    get C764() {
      return C[764] = dart.const(Object.setPrototypeOf({
        [_name$0]: "justify",
        [index$]: 3
      }, ui.TextAlign.prototype));
    },
    get C765() {
      return C[765] = dart.const(Object.setPrototypeOf({
        [_name$0]: "start",
        [index$]: 4
      }, ui.TextAlign.prototype));
    },
    get C766() {
      return C[766] = dart.const(Object.setPrototypeOf({
        [_name$0]: "end",
        [index$]: 5
      }, ui.TextAlign.prototype));
    },
    get C760() {
      return C[760] = dart.constList([C[761] || CT.C761, C[762] || CT.C762, C[763] || CT.C763, C[764] || CT.C764, C[765] || CT.C765, C[766] || CT.C766], T$9.TextAlignL());
    },
    get C768() {
      return C[768] = dart.const(Object.setPrototypeOf({
        [_name$0]: "alphabetic",
        [index$]: 0
      }, ui.TextBaseline.prototype));
    },
    get C769() {
      return C[769] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ideographic",
        [index$]: 1
      }, ui.TextBaseline.prototype));
    },
    get C767() {
      return C[767] = dart.constList([C[768] || CT.C768, C[769] || CT.C769], T$9.TextBaselineL());
    },
    get C770() {
      return C[770] = dart.const(Object.setPrototypeOf({
        [_mask$]: 0
      }, ui.TextDecoration.prototype));
    },
    get C771() {
      return C[771] = dart.const(Object.setPrototypeOf({
        [_mask$]: 1
      }, ui.TextDecoration.prototype));
    },
    get C772() {
      return C[772] = dart.const(Object.setPrototypeOf({
        [_mask$]: 2
      }, ui.TextDecoration.prototype));
    },
    get C773() {
      return C[773] = dart.const(Object.setPrototypeOf({
        [_mask$]: 4
      }, ui.TextDecoration.prototype));
    },
    get C775() {
      return C[775] = dart.const(Object.setPrototypeOf({
        [_name$0]: "solid",
        [index$]: 0
      }, ui.TextDecorationStyle.prototype));
    },
    get C776() {
      return C[776] = dart.const(Object.setPrototypeOf({
        [_name$0]: "double",
        [index$]: 1
      }, ui.TextDecorationStyle.prototype));
    },
    get C777() {
      return C[777] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dotted",
        [index$]: 2
      }, ui.TextDecorationStyle.prototype));
    },
    get C778() {
      return C[778] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dashed",
        [index$]: 3
      }, ui.TextDecorationStyle.prototype));
    },
    get C779() {
      return C[779] = dart.const(Object.setPrototypeOf({
        [_name$0]: "wavy",
        [index$]: 4
      }, ui.TextDecorationStyle.prototype));
    },
    get C774() {
      return C[774] = dart.constList([C[775] || CT.C775, C[776] || CT.C776, C[777] || CT.C777, C[778] || CT.C778, C[779] || CT.C779], T$9.TextDecorationStyleL());
    },
    get C781() {
      return C[781] = dart.const(Object.setPrototypeOf({
        [_name$0]: "proportional",
        [index$]: 0
      }, ui.TextLeadingDistribution.prototype));
    },
    get C782() {
      return C[782] = dart.const(Object.setPrototypeOf({
        [_name$0]: "even",
        [index$]: 1
      }, ui.TextLeadingDistribution.prototype));
    },
    get C780() {
      return C[780] = dart.constList([C[781] || CT.C781, C[782] || CT.C782], T$9.TextLeadingDistributionL());
    },
    get C784() {
      return C[784] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rtl",
        [index$]: 0
      }, ui.TextDirection.prototype));
    },
    get C785() {
      return C[785] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ltr",
        [index$]: 1
      }, ui.TextDirection.prototype));
    },
    get C783() {
      return C[783] = dart.constList([C[784] || CT.C784, C[785] || CT.C785], T$9.TextDirectionL());
    },
    get C787() {
      return C[787] = dart.const(Object.setPrototypeOf({
        [_name$0]: "upstream",
        [index$]: 0
      }, ui.TextAffinity.prototype));
    },
    get C788() {
      return C[788] = dart.const(Object.setPrototypeOf({
        [_name$0]: "downstream",
        [index$]: 1
      }, ui.TextAffinity.prototype));
    },
    get C786() {
      return C[786] = dart.constList([C[787] || CT.C787, C[788] || CT.C788], T$9.TextAffinityL());
    },
    get C789() {
      return C[789] = dart.const(Object.setPrototypeOf({
        [end$0]: -1,
        [start$1]: -1
      }, ui.TextRange.prototype));
    },
    get C791() {
      return C[791] = dart.const(Object.setPrototypeOf({
        [_name$0]: "tight",
        [index$]: 0
      }, ui.BoxHeightStyle.prototype));
    },
    get C792() {
      return C[792] = dart.const(Object.setPrototypeOf({
        [_name$0]: "max",
        [index$]: 1
      }, ui.BoxHeightStyle.prototype));
    },
    get C793() {
      return C[793] = dart.const(Object.setPrototypeOf({
        [_name$0]: "includeLineSpacingMiddle",
        [index$]: 2
      }, ui.BoxHeightStyle.prototype));
    },
    get C794() {
      return C[794] = dart.const(Object.setPrototypeOf({
        [_name$0]: "includeLineSpacingTop",
        [index$]: 3
      }, ui.BoxHeightStyle.prototype));
    },
    get C795() {
      return C[795] = dart.const(Object.setPrototypeOf({
        [_name$0]: "includeLineSpacingBottom",
        [index$]: 4
      }, ui.BoxHeightStyle.prototype));
    },
    get C796() {
      return C[796] = dart.const(Object.setPrototypeOf({
        [_name$0]: "strut",
        [index$]: 5
      }, ui.BoxHeightStyle.prototype));
    },
    get C790() {
      return C[790] = dart.constList([C[791] || CT.C791, C[792] || CT.C792, C[793] || CT.C793, C[794] || CT.C794, C[795] || CT.C795, C[796] || CT.C796], T$9.BoxHeightStyleL());
    },
    get C798() {
      return C[798] = dart.const(Object.setPrototypeOf({
        [_name$0]: "tight",
        [index$]: 0
      }, ui.BoxWidthStyle.prototype));
    },
    get C799() {
      return C[799] = dart.const(Object.setPrototypeOf({
        [_name$0]: "max",
        [index$]: 1
      }, ui.BoxWidthStyle.prototype));
    },
    get C797() {
      return C[797] = dart.constList([C[798] || CT.C798, C[799] || CT.C799], T$9.BoxWidthStyleL());
    },
    get C801() {
      return C[801] = dart.const(Object.setPrototypeOf({
        [_name$0]: "repeated",
        [index$]: 1
      }, ui.TileMode.prototype));
    },
    get C802() {
      return C[802] = dart.const(Object.setPrototypeOf({
        [_name$0]: "mirror",
        [index$]: 2
      }, ui.TileMode.prototype));
    },
    get C803() {
      return C[803] = dart.const(Object.setPrototypeOf({
        [_name$0]: "decal",
        [index$]: 3
      }, ui.TileMode.prototype));
    },
    get C800() {
      return C[800] = dart.constList([C[586] || CT.C586, C[801] || CT.C801, C[802] || CT.C802, C[803] || CT.C803], T$9.TileModeL());
    },
    get C805() {
      return C[805] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dark",
        [index$]: 0
      }, ui.Brightness.prototype));
    },
    get C806() {
      return C[806] = dart.const(Object.setPrototypeOf({
        [_name$0]: "light",
        [index$]: 1
      }, ui.Brightness.prototype));
    },
    get C804() {
      return C[804] = dart.constList([C[805] || CT.C805, C[806] || CT.C806], T$9.BrightnessL());
    },
    get C807() {
      return C[807] = dart.const(Object.setPrototypeOf({
      }, ui._HashEnd.prototype));
    },
    get C808() {
      return C[808] = dart.const(Object.setPrototypeOf({
        [pragma_options]: null,
        [pragma_name]: "flutter:keep-to-string"
      }, core.pragma.prototype));
    },
    get C810() {
      return C[810] = dart.const(Object.setPrototypeOf({
        [_name$0]: "blink",
        [index$]: 0
      }, ui_web.BrowserEngine.prototype));
    },
    get C811() {
      return C[811] = dart.const(Object.setPrototypeOf({
        [_name$0]: "webkit",
        [index$]: 1
      }, ui_web.BrowserEngine.prototype));
    },
    get C812() {
      return C[812] = dart.const(Object.setPrototypeOf({
        [_name$0]: "firefox",
        [index$]: 2
      }, ui_web.BrowserEngine.prototype));
    },
    get C809() {
      return C[809] = dart.constList([C[810] || CT.C810, C[811] || CT.C811, C[812] || CT.C812], T$9.BrowserEngineL());
    },
    get C814() {
      return C[814] = dart.const(Object.setPrototypeOf({
        [_name$0]: "iOs",
        [index$]: 0
      }, ui_web.OperatingSystem.prototype));
    },
    get C815() {
      return C[815] = dart.const(Object.setPrototypeOf({
        [_name$0]: "android",
        [index$]: 1
      }, ui_web.OperatingSystem.prototype));
    },
    get C816() {
      return C[816] = dart.const(Object.setPrototypeOf({
        [_name$0]: "linux",
        [index$]: 2
      }, ui_web.OperatingSystem.prototype));
    },
    get C817() {
      return C[817] = dart.const(Object.setPrototypeOf({
        [_name$0]: "windows",
        [index$]: 3
      }, ui_web.OperatingSystem.prototype));
    },
    get C818() {
      return C[818] = dart.const(Object.setPrototypeOf({
        [_name$0]: "macOs",
        [index$]: 4
      }, ui_web.OperatingSystem.prototype));
    },
    get C819() {
      return C[819] = dart.const(Object.setPrototypeOf({
        [_name$0]: "unknown",
        [index$]: 5
      }, ui_web.OperatingSystem.prototype));
    },
    get C813() {
      return C[813] = dart.constList([C[814] || CT.C814, C[815] || CT.C815, C[816] || CT.C816, C[817] || CT.C817, C[818] || CT.C818, C[819] || CT.C819], T$9.OperatingSystemL());
    },
    get C820() {
      return C[820] = dart.const(Object.setPrototypeOf({
      }, ui_web.BrowserPlatformLocation.prototype));
    },
    get C821() {
      return C[821] = dart.const(Object.setPrototypeOf({
        [_dy$]: 600,
        [_dx$]: 800
      }, ui.Size.prototype));
    },
    get C822() {
      return C[822] = dart.constSet(T$9.OperatingSystemL(), [C[818] || CT.C818, C[816] || CT.C816, C[817] || CT.C817]);
    },
    get C823() {
      return C[823] = dart.const(Object.setPrototypeOf({
        [TestHistoryEntry_url]: "/",
        [TestHistoryEntry_title]: null,
        [TestHistoryEntry_state]: "default"
      }, _engine.TestHistoryEntry.prototype));
    },
    get C824() {
      return C[824] = dart.const(Object.setPrototypeOf({
        [_platformLocation$]: C[820] || CT.C820
      }, ui_web.HashUrlStrategy.prototype));
    },
    get C825() {
      return C[825] = dart.constList([4, 9, 14, 19], T$2.intL());
    },
    get C826() {
      return C[826] = dart.const(Object.setPrototypeOf({
        [_name$0]: "transform",
        [index$]: 3
      }, _engine.MutatorType.prototype));
    },
    get C827() {
      return C[827] = dart.const(Object.setPrototypeOf({
        [_name$0]: "clipRect",
        [index$]: 0
      }, _engine.MutatorType.prototype));
    },
    get C828() {
      return C[828] = dart.const(Object.setPrototypeOf({
        [_name$0]: "clipRRect",
        [index$]: 1
      }, _engine.MutatorType.prototype));
    },
    get C829() {
      return C[829] = dart.const(Object.setPrototypeOf({
        [_name$0]: "clipPath",
        [index$]: 2
      }, _engine.MutatorType.prototype));
    },
    get C830() {
      return C[830] = dart.const(Object.setPrototypeOf({
        [_name$0]: "opacity",
        [index$]: 4
      }, _engine.MutatorType.prototype));
    },
    get C831() {
      return C[831] = dart.const(Object.setPrototypeOf({
        [value$4]: 1677786880
      }, ui.Color.prototype));
    },
    get C832() {
      return C[832] = dart.const(Object.setPrototypeOf({
        [value$4]: 1677721855
      }, ui.Color.prototype));
    },
    get C833() {
      return C[833] = dart.constList([C[827] || CT.C827, C[828] || CT.C828, C[829] || CT.C829, C[826] || CT.C826, C[830] || CT.C830], T$9.MutatorTypeL());
    },
    get C834() {
      return C[834] = dart.const(new _js_helper.PrivateSymbol.new('_getNextFrame', _getNextFrame$));
    },
    get C835() {
      return C[835] = dart.const(Object.setPrototypeOf({
        [value$4]: 0
      }, ui.Color.prototype));
    },
    get C836() {
      return C[836] = dart.const(Object.setPrototypeOf({
        [offset$]: null,
        [source$]: null,
        [message$16]: "Invalid Shader Source"
      }, core.FormatException.prototype));
    },
    get C837() {
      return C[837] = dart.const(Object.setPrototypeOf({
      }, _engine.CkPathMetricIteratorEmpty.prototype));
    },
    get C839() {
      return C[839] = dart.const(Object.setPrototypeOf({
        [_name$0]: "auto",
        [index$]: 0
      }, _engine.CanvasKitVariant.prototype));
    },
    get C840() {
      return C[840] = dart.const(Object.setPrototypeOf({
        [_name$0]: "full",
        [index$]: 1
      }, _engine.CanvasKitVariant.prototype));
    },
    get C841() {
      return C[841] = dart.const(Object.setPrototypeOf({
        [_name$0]: "chromium",
        [index$]: 2
      }, _engine.CanvasKitVariant.prototype));
    },
    get C838() {
      return C[838] = dart.constList([C[839] || CT.C839, C[840] || CT.C840, C[841] || CT.C841], T$10.CanvasKitVariantL());
    },
    get C842() {
      return C[842] = dart.const(Object.setPrototypeOf({
        [BitmapSize_height]: 1,
        [BitmapSize_width]: 1
      }, _engine.BitmapSize.prototype));
    },
    get C843() {
      return C[843] = dart.constList([], T$10.TextBoxL());
    },
    get C845() {
      return C[845] = dart.const(Object.setPrototypeOf({
        [_name$0]: "grapheme",
        [index$]: 0
      }, _engine.IntlSegmenterGranularity.prototype));
    },
    get C846() {
      return C[846] = dart.const(Object.setPrototypeOf({
        [_name$0]: "word",
        [index$]: 1
      }, _engine.IntlSegmenterGranularity.prototype));
    },
    get C844() {
      return C[844] = dart.constList([C[845] || CT.C845, C[846] || CT.C846], T$10.IntlSegmenterGranularityL());
    },
    get C847() {
      return C[847] = dart.const(Object.setPrototypeOf({
      }, _engine.JSONMethodCodec.prototype));
    },
    get C849() {
      return C[849] = dart.const(Object.setPrototypeOf({
        [_name$0]: "mode",
        [index$]: 0
      }, _engine.ColorFilterType.prototype));
    },
    get C850() {
      return C[850] = dart.const(Object.setPrototypeOf({
        [_name$0]: "matrix",
        [index$]: 1
      }, _engine.ColorFilterType.prototype));
    },
    get C851() {
      return C[851] = dart.const(Object.setPrototypeOf({
        [_name$0]: "linearToSrgbGamma",
        [index$]: 2
      }, _engine.ColorFilterType.prototype));
    },
    get C852() {
      return C[852] = dart.const(Object.setPrototypeOf({
        [_name$0]: "srgbToLinearGamma",
        [index$]: 3
      }, _engine.ColorFilterType.prototype));
    },
    get C848() {
      return C[848] = dart.constList([C[849] || CT.C849, C[850] || CT.C850, C[851] || CT.C851, C[852] || CT.C852], T$10.ColorFilterTypeL());
    },
    get C853() {
      return C[853] = dart.const(Object.setPrototypeOf({
      }, _engine.ScreenOrientation.prototype));
    },
    get C854() {
      return C[854] = dart.constMap(T$10.PersistedSurfaceL(), T$10.PersistedSurfaceL(), []);
    },
    get C855() {
      return C[855] = dart.fn(_engine.BitmapCanvas._onEvictElement, T$9.DomHTMLElementTovoid());
    },
    get C857() {
      return C[857] = dart.const(Object.setPrototypeOf({
        [_dy$]: 0,
        [_dx$]: 1
      }, ui.Offset.prototype));
    },
    get C858() {
      return C[858] = dart.const(Object.setPrototypeOf({
        [_dy$]: 1,
        [_dx$]: 1
      }, ui.Offset.prototype));
    },
    get C859() {
      return C[859] = dart.const(Object.setPrototypeOf({
        [_dy$]: 1,
        [_dx$]: 0
      }, ui.Offset.prototype));
    },
    get C860() {
      return C[860] = dart.const(Object.setPrototypeOf({
        [_dy$]: 1,
        [_dx$]: -1
      }, ui.Offset.prototype));
    },
    get C861() {
      return C[861] = dart.const(Object.setPrototypeOf({
        [_dy$]: 0,
        [_dx$]: -1
      }, ui.Offset.prototype));
    },
    get C862() {
      return C[862] = dart.const(Object.setPrototypeOf({
        [_dy$]: -1,
        [_dx$]: -1
      }, ui.Offset.prototype));
    },
    get C863() {
      return C[863] = dart.const(Object.setPrototypeOf({
        [_dy$]: -1,
        [_dx$]: 0
      }, ui.Offset.prototype));
    },
    get C864() {
      return C[864] = dart.const(Object.setPrototypeOf({
        [_dy$]: -1,
        [_dx$]: 1
      }, ui.Offset.prototype));
    },
    get C856() {
      return C[856] = dart.constList([C[857] || CT.C857, C[858] || CT.C858, C[859] || CT.C859, C[860] || CT.C860, C[861] || CT.C861, C[862] || CT.C862, C[863] || CT.C863, C[864] || CT.C864], T$11.OffsetL());
    },
    get C865() {
      return C[865] = dart.const(Object.setPrototypeOf({
        [_name$0]: "kBackwards",
        [index$]: 4
      }, _engine.DirChange.prototype));
    },
    get C866() {
      return C[866] = dart.const(Object.setPrototypeOf({
        [_name$0]: "kUnknown",
        [index$]: 0
      }, _engine.DirChange.prototype));
    },
    get C868() {
      return C[868] = dart.const(Object.setPrototypeOf({
        [_name$0]: "kLeft",
        [index$]: 1
      }, _engine.DirChange.prototype));
    },
    get C869() {
      return C[869] = dart.const(Object.setPrototypeOf({
        [_name$0]: "kRight",
        [index$]: 2
      }, _engine.DirChange.prototype));
    },
    get C870() {
      return C[870] = dart.const(Object.setPrototypeOf({
        [_name$0]: "kStraight",
        [index$]: 3
      }, _engine.DirChange.prototype));
    },
    get C871() {
      return C[871] = dart.const(Object.setPrototypeOf({
        [_name$0]: "kInvalid",
        [index$]: 5
      }, _engine.DirChange.prototype));
    },
    get C867() {
      return C[867] = dart.constList([C[866] || CT.C866, C[868] || CT.C868, C[869] || CT.C869, C[870] || CT.C870, C[865] || CT.C865, C[871] || CT.C871], T$11.DirChangeL());
    },
    get C872() {
      return C[872] = dart.const(Object.setPrototypeOf({
      }, _engine.PaintSave.prototype));
    },
    get C873() {
      return C[873] = dart.const(Object.setPrototypeOf({
      }, _engine.PaintRestore.prototype));
    },
    get C874() {
      return C[874] = dart.fn(core.print, T$.ObjectNTovoid());
    },
    get C875() {
      return C[875] = dart.constList([0, 1], T$0.doubleL());
    },
    get C877() {
      return C[877] = dart.const(Object.setPrototypeOf({
        [_name$0]: "created",
        [index$]: 0
      }, _engine.PersistedSurfaceState.prototype));
    },
    get C878() {
      return C[878] = dart.const(Object.setPrototypeOf({
        [_name$0]: "active",
        [index$]: 1
      }, _engine.PersistedSurfaceState.prototype));
    },
    get C879() {
      return C[879] = dart.const(Object.setPrototypeOf({
        [_name$0]: "pendingRetention",
        [index$]: 2
      }, _engine.PersistedSurfaceState.prototype));
    },
    get C880() {
      return C[880] = dart.const(Object.setPrototypeOf({
        [_name$0]: "pendingUpdate",
        [index$]: 3
      }, _engine.PersistedSurfaceState.prototype));
    },
    get C881() {
      return C[881] = dart.const(Object.setPrototypeOf({
        [_name$0]: "released",
        [index$]: 4
      }, _engine.PersistedSurfaceState.prototype));
    },
    get C876() {
      return C[876] = dart.constList([C[877] || CT.C877, C[878] || CT.C878, C[879] || CT.C879, C[880] || CT.C880, C[881] || CT.C881], T$11.PersistedSurfaceStateL());
    },
    get C882() {
      return C[882] = dart.const(new _js_helper.PrivateSymbol.new('_durationMillis', _durationMillis$));
    },
    get C885() {
      return C[885] = dart.constList([137, 80, 78, 71, 13, 10, 26, 10], T$.intN());
    },
    get C884() {
      return C[884] = dart.const(Object.setPrototypeOf({
        [contentType$0]: "image/png",
        [header$]: C[885] || CT.C885
      }, _engine.ImageFileFormat.prototype));
    },
    get C887() {
      return C[887] = dart.constList([71, 73, 70, 56, 55, 97], T$.intN());
    },
    get C886() {
      return C[886] = dart.const(Object.setPrototypeOf({
        [contentType$0]: "image/gif",
        [header$]: C[887] || CT.C887
      }, _engine.ImageFileFormat.prototype));
    },
    get C889() {
      return C[889] = dart.constList([71, 73, 70, 56, 57, 97], T$.intN());
    },
    get C888() {
      return C[888] = dart.const(Object.setPrototypeOf({
        [contentType$0]: "image/gif",
        [header$]: C[889] || CT.C889
      }, _engine.ImageFileFormat.prototype));
    },
    get C891() {
      return C[891] = dart.constList([255, 216, 255], T$.intN());
    },
    get C890() {
      return C[890] = dart.const(Object.setPrototypeOf({
        [contentType$0]: "image/jpeg",
        [header$]: C[891] || CT.C891
      }, _engine.ImageFileFormat.prototype));
    },
    get C893() {
      return C[893] = dart.constList([82, 73, 70, 70, null, null, null, null, 87, 69, 66, 80], T$.intN());
    },
    get C892() {
      return C[892] = dart.const(Object.setPrototypeOf({
        [contentType$0]: "image/webp",
        [header$]: C[893] || CT.C893
      }, _engine.ImageFileFormat.prototype));
    },
    get C895() {
      return C[895] = dart.constList([66, 77], T$.intN());
    },
    get C894() {
      return C[894] = dart.const(Object.setPrototypeOf({
        [contentType$0]: "image/bmp",
        [header$]: C[895] || CT.C895
      }, _engine.ImageFileFormat.prototype));
    },
    get C883() {
      return C[883] = dart.constList([C[884] || CT.C884, C[886] || CT.C886, C[888] || CT.C888, C[890] || CT.C890, C[892] || CT.C892, C[894] || CT.C894], T$11.ImageFileFormatL());
    },
    get C897() {
      return C[897] = dart.const(Object.setPrototypeOf({
        [_name$0]: "uninitialized",
        [index$]: 0
      }, _engine.DebugEngineInitializationState.prototype));
    },
    get C898() {
      return C[898] = dart.const(Object.setPrototypeOf({
        [_name$0]: "initializingServices",
        [index$]: 1
      }, _engine.DebugEngineInitializationState.prototype));
    },
    get C899() {
      return C[899] = dart.const(Object.setPrototypeOf({
        [_name$0]: "initializedServices",
        [index$]: 2
      }, _engine.DebugEngineInitializationState.prototype));
    },
    get C900() {
      return C[900] = dart.const(Object.setPrototypeOf({
        [_name$0]: "initializingUi",
        [index$]: 3
      }, _engine.DebugEngineInitializationState.prototype));
    },
    get C901() {
      return C[901] = dart.const(Object.setPrototypeOf({
        [_name$0]: "initialized",
        [index$]: 4
      }, _engine.DebugEngineInitializationState.prototype));
    },
    get C896() {
      return C[896] = dart.constList([C[897] || CT.C897, C[898] || CT.C898, C[899] || CT.C899, C[900] || CT.C900, C[901] || CT.C901], T$11.DebugEngineInitializationStateL());
    },
    get C902() {
      return C[902] = dart.const(Object.setPrototypeOf({
        [_duration]: 2000000
      }, core.Duration.prototype));
    },
    get C904() {
      return C[904] = dart.const(Object.setPrototypeOf({
        [PlatformViewPosition_transform]: null,
        [PlatformViewPosition_offset]: null
      }, _engine.PlatformViewPosition.prototype));
    },
    get C903() {
      return C[903] = dart.const(Object.setPrototypeOf({
        [PlatformViewStyling_opacity]: 1,
        [PlatformViewStyling_position]: C[904] || CT.C904
      }, _engine.PlatformViewStyling.prototype));
    },
    get C905() {
      return C[905] = dart.constMap(T$2.StringL(), T$2.StringL(), ["alias", "alias", "allScroll", "all-scroll", "basic", "default", "cell", "cell", "click", "pointer", "contextMenu", "context-menu", "copy", "copy", "forbidden", "not-allowed", "grab", "grab", "grabbing", "grabbing", "help", "help", "move", "move", "none", "none", "noDrop", "no-drop", "precise", "crosshair", "progress", "progress", "text", "text", "resizeColumn", "col-resize", "resizeDown", "s-resize", "resizeDownLeft", "sw-resize", "resizeDownRight", "se-resize", "resizeLeft", "w-resize", "resizeLeftRight", "ew-resize", "resizeRight", "e-resize", "resizeRow", "row-resize", "resizeUp", "n-resize", "resizeUpDown", "ns-resize", "resizeUpLeft", "nw-resize", "resizeUpRight", "ne-resize", "resizeUpLeftDownRight", "nwse-resize", "resizeUpRightDownLeft", "nesw-resize", "verticalText", "vertical-text", "wait", "wait", "zoomIn", "zoom-in", "zoomOut", "zoom-out"]);
    },
    get C906() {
      return C[906] = dart.const(Object.setPrototypeOf({
        [MethodCall_arguments]: null,
        [MethodCall_method]: "popRoute"
      }, _engine.MethodCall.prototype));
    },
    get C907() {
      return C[907] = dart.const(Object.setPrototypeOf({
      }, _engine.StandardMessageCodec.prototype));
    },
    get C908() {
      return C[908] = dart.const(Object.setPrototypeOf({
        [_countryCode$]: null,
        [scriptCode$]: null,
        [_languageCode$]: "und"
      }, ui.Locale.prototype));
    },
    get C909() {
      return C[909] = dart.constList([], T$11.LocaleL());
    },
    get C911() {
      return C[911] = dart.const(Object.setPrototypeOf({
        [_countryCode$]: "US",
        [scriptCode$]: null,
        [_languageCode$]: "en"
      }, ui.Locale.prototype));
    },
    get C910() {
      return C[910] = dart.constList([C[911] || CT.C911], T$11.LocaleL());
    },
    get C912() {
      return C[912] = dart.const(Object.setPrototypeOf({
      }, _engine.StringCodec.prototype));
    },
    get C913() {
      return C[913] = dart.const(Object.setPrototypeOf({
      }, ui.FrameData.prototype));
    },
    get C914() {
      return C[914] = dart.const(Object.setPrototypeOf({
        [physicalDoubleTapSlop$]: null,
        [physicalTouchSlop$]: null
      }, ui.GestureSettings.prototype));
    },
    get C915() {
      return C[915] = dart.constList([], T$11.DisplayFeatureL());
    },
    get C916() {
      return C[916] = dart.const(Object.setPrototypeOf({
        [EngineAccessibilityFeatures__index]: 0
      }, _engine.EngineAccessibilityFeatures.prototype));
    },
    get C917() {
      return C[917] = dart.fn(_engine._defaultFactory, T$11.int__ToDomElement());
    },
    get C918() {
      return C[918] = dart.const(Object.setPrototypeOf({
        [StandardMethodCodec_messageCodec]: C[907] || CT.C907
      }, _engine.StandardMethodCodec.prototype));
    },
    get C919() {
      return C[919] = dart.const(Object.setPrototypeOf({
      }, _engine.PointerSupportDetector.prototype));
    },
    get C920() {
      return C[920] = dart.const(Object.setPrototypeOf({
        [_duration]: 200000
      }, core.Duration.prototype));
    },
    get C921() {
      return C[921] = dart.const(Object.setPrototypeOf({
        [_duration]: 50000
      }, core.Duration.prototype));
    },
    get C922() {
      return C[922] = dart.fn(_engine._noopCallback, T$8.ByteDataNTovoid());
    },
    get C923() {
      return C[923] = dart.const(Object.setPrototypeOf({
      }, _engine.JSONMessageCodec.prototype));
    },
    get C925() {
      return C[925] = dart.const(Object.setPrototypeOf({
        [_name$0]: "polite",
        [index$]: 0
      }, _engine.Assertiveness.prototype));
    },
    get C926() {
      return C[926] = dart.const(Object.setPrototypeOf({
        [_name$0]: "assertive",
        [index$]: 1
      }, _engine.Assertiveness.prototype));
    },
    get C924() {
      return C[924] = dart.constList([C[925] || CT.C925, C[926] || CT.C926], T$12.AssertivenessL());
    },
    get C928() {
      return C[928] = dart.const(Object.setPrototypeOf({
        [_name$0]: "checkbox",
        [index$]: 0
      }, _engine._CheckableKind.prototype));
    },
    get C929() {
      return C[929] = dart.const(Object.setPrototypeOf({
        [_name$0]: "radio",
        [index$]: 1
      }, _engine._CheckableKind.prototype));
    },
    get C930() {
      return C[930] = dart.const(Object.setPrototypeOf({
        [_name$0]: "toggle",
        [index$]: 2
      }, _engine._CheckableKind.prototype));
    },
    get C927() {
      return C[927] = dart.constList([C[928] || CT.C928, C[929] || CT.C929, C[930] || CT.C930], T$12._CheckableKindL());
    },
    get C931() {
      return C[931] = dart.constList([], T$12.RoleL());
    },
    get C932() {
      return C[932] = dart.const(Object.setPrototypeOf({
        [_name$0]: "browserGestures",
        [index$]: 1
      }, _engine.GestureMode.prototype));
    },
    get C933() {
      return C[933] = dart.const(Object.setPrototypeOf({
        [_name$0]: "pointerEvents",
        [index$]: 0
      }, _engine.GestureMode.prototype));
    },
    get C934() {
      return C[934] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ariaLabel",
        [index$]: 0
      }, _engine.LabelRepresentation.prototype));
    },
    get C935() {
      return C[935] = dart.const(Object.setPrototypeOf({
        [_name$0]: "domText",
        [index$]: 1
      }, _engine.LabelRepresentation.prototype));
    },
    get C936() {
      return C[936] = dart.const(Object.setPrototypeOf({
        [_name$0]: "sizedSpan",
        [index$]: 2
      }, _engine.LabelRepresentation.prototype));
    },
    get C937() {
      return C[937] = dart.constList([C[934] || CT.C934, C[935] || CT.C935, C[936] || CT.C936], T$12.LabelRepresentationL());
    },
    get C938() {
      return C[938] = dart.fn(_engine.SizedSpanRepresentation._updateSizes, T$.VoidTovoid());
    },
    get C940() {
      return C[940] = dart.const(Object.setPrototypeOf({
        [_name$0]: "incrementable",
        [index$]: 0
      }, _engine.PrimaryRole.prototype));
    },
    get C941() {
      return C[941] = dart.const(Object.setPrototypeOf({
        [_name$0]: "scrollable",
        [index$]: 1
      }, _engine.PrimaryRole.prototype));
    },
    get C942() {
      return C[942] = dart.const(Object.setPrototypeOf({
        [_name$0]: "button",
        [index$]: 2
      }, _engine.PrimaryRole.prototype));
    },
    get C943() {
      return C[943] = dart.const(Object.setPrototypeOf({
        [_name$0]: "textField",
        [index$]: 3
      }, _engine.PrimaryRole.prototype));
    },
    get C944() {
      return C[944] = dart.const(Object.setPrototypeOf({
        [_name$0]: "checkable",
        [index$]: 4
      }, _engine.PrimaryRole.prototype));
    },
    get C945() {
      return C[945] = dart.const(Object.setPrototypeOf({
        [_name$0]: "heading",
        [index$]: 5
      }, _engine.PrimaryRole.prototype));
    },
    get C946() {
      return C[946] = dart.const(Object.setPrototypeOf({
        [_name$0]: "image",
        [index$]: 6
      }, _engine.PrimaryRole.prototype));
    },
    get C947() {
      return C[947] = dart.const(Object.setPrototypeOf({
        [_name$0]: "dialog",
        [index$]: 7
      }, _engine.PrimaryRole.prototype));
    },
    get C948() {
      return C[948] = dart.const(Object.setPrototypeOf({
        [_name$0]: "platformView",
        [index$]: 8
      }, _engine.PrimaryRole.prototype));
    },
    get C949() {
      return C[949] = dart.const(Object.setPrototypeOf({
        [_name$0]: "generic",
        [index$]: 9
      }, _engine.PrimaryRole.prototype));
    },
    get C950() {
      return C[950] = dart.const(Object.setPrototypeOf({
        [_name$0]: "link",
        [index$]: 10
      }, _engine.PrimaryRole.prototype));
    },
    get C939() {
      return C[939] = dart.constList([C[940] || CT.C940, C[941] || CT.C941, C[942] || CT.C942, C[943] || CT.C943, C[944] || CT.C944, C[945] || CT.C945, C[946] || CT.C946, C[947] || CT.C947, C[948] || CT.C948, C[949] || CT.C949, C[950] || CT.C950], T$12.PrimaryRoleL());
    },
    get C952() {
      return C[952] = dart.const(Object.setPrototypeOf({
        [_name$0]: "focusable",
        [index$]: 0
      }, _engine.Role.prototype));
    },
    get C953() {
      return C[953] = dart.const(Object.setPrototypeOf({
        [_name$0]: "tappable",
        [index$]: 1
      }, _engine.Role.prototype));
    },
    get C954() {
      return C[954] = dart.const(Object.setPrototypeOf({
        [_name$0]: "labelAndValue",
        [index$]: 2
      }, _engine.Role.prototype));
    },
    get C955() {
      return C[955] = dart.const(Object.setPrototypeOf({
        [_name$0]: "liveRegion",
        [index$]: 3
      }, _engine.Role.prototype));
    },
    get C956() {
      return C[956] = dart.const(Object.setPrototypeOf({
        [_name$0]: "routeName",
        [index$]: 4
      }, _engine.Role.prototype));
    },
    get C951() {
      return C[951] = dart.constList([C[952] || CT.C952, C[953] || CT.C953, C[954] || CT.C954, C[955] || CT.C955, C[956] || CT.C956], T$12.RoleL());
    },
    get C958() {
      return C[958] = dart.const(Object.setPrototypeOf({
        [_name$0]: "unknown",
        [index$]: 0
      }, _engine.AccessibilityMode.prototype));
    },
    get C959() {
      return C[959] = dart.const(Object.setPrototypeOf({
        [_name$0]: "known",
        [index$]: 1
      }, _engine.AccessibilityMode.prototype));
    },
    get C957() {
      return C[957] = dart.constList([C[958] || CT.C958, C[959] || CT.C959], T$12.AccessibilityModeL());
    },
    get C960() {
      return C[960] = dart.constList([C[933] || CT.C933, C[932] || CT.C932], T$12.GestureModeL());
    },
    get C962() {
      return C[962] = dart.const(Object.setPrototypeOf({
        [_name$0]: "idle",
        [index$]: 0
      }, _engine.SemanticsUpdatePhase.prototype));
    },
    get C963() {
      return C[963] = dart.const(Object.setPrototypeOf({
        [_name$0]: "updating",
        [index$]: 1
      }, _engine.SemanticsUpdatePhase.prototype));
    },
    get C964() {
      return C[964] = dart.const(Object.setPrototypeOf({
        [_name$0]: "postUpdate",
        [index$]: 2
      }, _engine.SemanticsUpdatePhase.prototype));
    },
    get C961() {
      return C[961] = dart.constList([C[962] || CT.C962, C[963] || CT.C963, C[964] || CT.C964], T$12.SemanticsUpdatePhaseL());
    },
    get C965() {
      return C[965] = dart.const(Object.setPrototypeOf({
        [_duration]: 500000
      }, core.Duration.prototype));
    },
    get C966() {
      return C[966] = dart.constList(["pointerdown", "pointermove", "pointerleave", "pointerup", "pointercancel", "touchstart", "touchend", "touchmove", "touchcancel", "mousedown", "mousemove", "mouseleave", "mouseup", "keyup", "keydown"], T$2.StringL());
    },
    get C967() {
      return C[967] = dart.constList(["click", "scroll"], T$2.StringL());
    },
    get C969() {
      return C[969] = dart.const(Object.setPrototypeOf({
        [_name$0]: "noOpinion",
        [index$]: 0
      }, _engine.EnabledState.prototype));
    },
    get C970() {
      return C[970] = dart.const(Object.setPrototypeOf({
        [_name$0]: "enabled",
        [index$]: 1
      }, _engine.EnabledState.prototype));
    },
    get C971() {
      return C[971] = dart.const(Object.setPrototypeOf({
        [_name$0]: "disabled",
        [index$]: 2
      }, _engine.EnabledState.prototype));
    },
    get C968() {
      return C[968] = dart.constList([C[969] || CT.C969, C[970] || CT.C970, C[971] || CT.C971], T$12.EnabledStateL());
    },
    get C972() {
      return C[972] = dart.constSet(T$2.StringL(), ["click", "keyup", "keydown", "mouseup", "mousedown", "pointerdown", "pointerup"]);
    },
    get C973() {
      return C[973] = dart.constSet(T$2.StringL(), ["click", "touchstart", "touchend", "pointerdown", "pointermove", "pointerup"]);
    },
    get C974() {
      return C[974] = dart.const(Object.setPrototypeOf({
        [_duration]: 100000
      }, core.Duration.prototype));
    },
    get C975() {
      return C[975] = dart.const(Object.setPrototypeOf({
        [offset$]: null,
        [source$]: null,
        [message$16]: "Message corrupted"
      }, core.FormatException.prototype));
    },
    get C976() {
      return C[976] = dart.const(Object.setPrototypeOf({
        [offset$]: null,
        [source$]: null,
        [message$16]: "Invalid method call"
      }, core.FormatException.prototype));
    },
    get C977() {
      return C[977] = dart.const(Object.setPrototypeOf({
        [offset$]: null,
        [source$]: null,
        [message$16]: "Expected envelope, got nothing"
      }, core.FormatException.prototype));
    },
    get C978() {
      return C[978] = dart.const(Object.setPrototypeOf({
        [offset$]: null,
        [source$]: null,
        [message$16]: "Invalid envelope"
      }, core.FormatException.prototype));
    },
    get C979() {
      return C[979] = dart.const(Object.setPrototypeOf({
        [offset$]: null,
        [source$]: null,
        [message$16]: "Invalid Shader Data"
      }, core.FormatException.prototype));
    },
    get C981() {
      return C[981] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Float",
        [index$]: 10
      }, _engine.UniformType.prototype));
    },
    get C980() {
      return C[980] = dart.const(Object.setPrototypeOf({
        [location$]: -1,
        [type$7]: C[981] || CT.C981,
        [name$25]: ""
      }, _engine.UniformData.prototype));
    },
    get C983() {
      return C[983] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Boolean",
        [index$]: 0
      }, _engine.UniformType.prototype));
    },
    get C984() {
      return C[984] = dart.const(Object.setPrototypeOf({
        [_name$0]: "SByte",
        [index$]: 1
      }, _engine.UniformType.prototype));
    },
    get C985() {
      return C[985] = dart.const(Object.setPrototypeOf({
        [_name$0]: "UByte",
        [index$]: 2
      }, _engine.UniformType.prototype));
    },
    get C986() {
      return C[986] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Short",
        [index$]: 3
      }, _engine.UniformType.prototype));
    },
    get C987() {
      return C[987] = dart.const(Object.setPrototypeOf({
        [_name$0]: "UShort",
        [index$]: 4
      }, _engine.UniformType.prototype));
    },
    get C988() {
      return C[988] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Int",
        [index$]: 5
      }, _engine.UniformType.prototype));
    },
    get C989() {
      return C[989] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Uint",
        [index$]: 6
      }, _engine.UniformType.prototype));
    },
    get C990() {
      return C[990] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Int64",
        [index$]: 7
      }, _engine.UniformType.prototype));
    },
    get C991() {
      return C[991] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Uint64",
        [index$]: 8
      }, _engine.UniformType.prototype));
    },
    get C992() {
      return C[992] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Half",
        [index$]: 9
      }, _engine.UniformType.prototype));
    },
    get C993() {
      return C[993] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Double",
        [index$]: 11
      }, _engine.UniformType.prototype));
    },
    get C994() {
      return C[994] = dart.const(Object.setPrototypeOf({
        [_name$0]: "SampledImage",
        [index$]: 12
      }, _engine.UniformType.prototype));
    },
    get C982() {
      return C[982] = dart.constList([C[983] || CT.C983, C[984] || CT.C984, C[985] || CT.C985, C[986] || CT.C986, C[987] || CT.C987, C[988] || CT.C988, C[989] || CT.C989, C[990] || CT.C990, C[991] || CT.C991, C[992] || CT.C992, C[981] || CT.C981, C[993] || CT.C993, C[994] || CT.C994], T$12.UniformTypeL());
    },
    get C995() {
      return C[995] = dart.const(Object.setPrototypeOf({
        [TestHistoryEntry_url]: "",
        [TestHistoryEntry_title]: null,
        [TestHistoryEntry_state]: null
      }, _engine.TestHistoryEntry.prototype));
    },
    get C996() {
      return C[996] = dart.const(Object.setPrototypeOf({
        [_name$0]: "prohibited",
        [index$]: 1
      }, _engine.LineBreakType.prototype));
    },
    get C997() {
      return C[997] = dart.const(Object.setPrototypeOf({
        [_name$0]: "opportunity",
        [index$]: 0
      }, _engine.LineBreakType.prototype));
    },
    get C998() {
      return C[998] = dart.const(Object.setPrototypeOf({
        [_name$0]: "mandatory",
        [index$]: 2
      }, _engine.LineBreakType.prototype));
    },
    get C999() {
      return C[999] = dart.const(Object.setPrototypeOf({
        [_name$0]: "endOfText",
        [index$]: 3
      }, _engine.LineBreakType.prototype));
    },
    get C1000() {
      return C[1000] = dart.const(Object.setPrototypeOf({
        [affinity$]: C[788] || CT.C788,
        [offset$1]: 0
      }, ui.TextPosition.prototype));
    },
    get C1001() {
      return C[1001] = dart.constList([C[997] || CT.C997, C[996] || CT.C996, C[998] || CT.C998, C[999] || CT.C999], T$12.LineBreakTypeL());
    },
    get C1003() {
      return C[1003] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ltr",
        [index$]: 0
      }, _engine.FragmentFlow.prototype));
    },
    get C1004() {
      return C[1004] = dart.const(Object.setPrototypeOf({
        [_name$0]: "rtl",
        [index$]: 1
      }, _engine.FragmentFlow.prototype));
    },
    get C1005() {
      return C[1005] = dart.const(Object.setPrototypeOf({
        [_name$0]: "previous",
        [index$]: 2
      }, _engine.FragmentFlow.prototype));
    },
    get C1006() {
      return C[1006] = dart.const(Object.setPrototypeOf({
        [_name$0]: "sandwich",
        [index$]: 3
      }, _engine.FragmentFlow.prototype));
    },
    get C1002() {
      return C[1002] = dart.constList([C[1003] || CT.C1003, C[1004] || CT.C1004, C[1005] || CT.C1005, C[1006] || CT.C1006], T$12.FragmentFlowL());
    },
    get C1008() {
      return C[1008] = dart.const(Object.setPrototypeOf({
        [_name$0]: "inside",
        [index$]: 0
      }, _engine._ComparisonResult.prototype));
    },
    get C1009() {
      return C[1009] = dart.const(Object.setPrototypeOf({
        [_name$0]: "higher",
        [index$]: 1
      }, _engine._ComparisonResult.prototype));
    },
    get C1010() {
      return C[1010] = dart.const(Object.setPrototypeOf({
        [_name$0]: "lower",
        [index$]: 2
      }, _engine._ComparisonResult.prototype));
    },
    get C1007() {
      return C[1007] = dart.constList([C[1008] || CT.C1008, C[1009] || CT.C1009, C[1010] || CT.C1010], T$12._ComparisonResultL());
    },
    get C1012() {
      return C[1012] = dart.const(Object.setPrototypeOf({
        [_name$0]: "forward",
        [index$]: 0,
        step: 1
      }, _engine._FindBreakDirection.prototype));
    },
    get C1013() {
      return C[1013] = dart.const(Object.setPrototypeOf({
        [_name$0]: "backward",
        [index$]: 1,
        step: -1
      }, _engine._FindBreakDirection.prototype));
    },
    get C1011() {
      return C[1011] = dart.constList([C[1012] || CT.C1012, C[1013] || CT.C1013], T$12._FindBreakDirectionL());
    },
    get C1014() {
      return C[1014] = dart.const(Object.setPrototypeOf({
      }, _engine.NoInputAction.prototype));
    },
    get C1015() {
      return C[1015] = dart.const(Object.setPrototypeOf({
      }, _engine.NextInputAction.prototype));
    },
    get C1016() {
      return C[1016] = dart.const(Object.setPrototypeOf({
      }, _engine.PreviousInputAction.prototype));
    },
    get C1017() {
      return C[1017] = dart.const(Object.setPrototypeOf({
      }, _engine.DoneInputAction.prototype));
    },
    get C1018() {
      return C[1018] = dart.const(Object.setPrototypeOf({
      }, _engine.GoInputAction.prototype));
    },
    get C1019() {
      return C[1019] = dart.const(Object.setPrototypeOf({
      }, _engine.EnterInputAction.prototype));
    },
    get C1020() {
      return C[1020] = dart.const(Object.setPrototypeOf({
      }, _engine.SearchInputAction.prototype));
    },
    get C1021() {
      return C[1021] = dart.const(Object.setPrototypeOf({
      }, _engine.SendInputAction.prototype));
    },
    get C1022() {
      return C[1022] = dart.const(Object.setPrototypeOf({
      }, _engine.NoTextInputType.prototype));
    },
    get C1023() {
      return C[1023] = dart.const(Object.setPrototypeOf({
      }, _engine.MultilineNoTextInputType.prototype));
    },
    get C1024() {
      return C[1024] = dart.const(Object.setPrototypeOf({
      }, _engine.TextInputType.prototype));
    },
    get C1025() {
      return C[1025] = dart.const(Object.setPrototypeOf({
      }, _engine.NumberInputType.prototype));
    },
    get C1026() {
      return C[1026] = dart.const(Object.setPrototypeOf({
      }, _engine.DecimalInputType.prototype));
    },
    get C1027() {
      return C[1027] = dart.const(Object.setPrototypeOf({
      }, _engine.PhoneInputType.prototype));
    },
    get C1028() {
      return C[1028] = dart.const(Object.setPrototypeOf({
      }, _engine.EmailInputType.prototype));
    },
    get C1029() {
      return C[1029] = dart.const(Object.setPrototypeOf({
      }, _engine.UrlInputType.prototype));
    },
    get C1030() {
      return C[1030] = dart.const(Object.setPrototypeOf({
      }, _engine.MultilineInputType.prototype));
    },
    get C1032() {
      return C[1032] = dart.const(Object.setPrototypeOf({
        [_name$0]: "words",
        [index$]: 0
      }, _engine.TextCapitalization.prototype));
    },
    get C1033() {
      return C[1033] = dart.const(Object.setPrototypeOf({
        [_name$0]: "sentences",
        [index$]: 1
      }, _engine.TextCapitalization.prototype));
    },
    get C1034() {
      return C[1034] = dart.const(Object.setPrototypeOf({
        [_name$0]: "characters",
        [index$]: 2
      }, _engine.TextCapitalization.prototype));
    },
    get C1035() {
      return C[1035] = dart.const(Object.setPrototypeOf({
        [_name$0]: "none",
        [index$]: 3
      }, _engine.TextCapitalization.prototype));
    },
    get C1031() {
      return C[1031] = dart.constList([C[1032] || CT.C1032, C[1033] || CT.C1033, C[1034] || CT.C1034, C[1035] || CT.C1035], T$12.TextCapitalizationL());
    },
    get C1036() {
      return C[1036] = dart.fn(_engine._emptyCallback, T$.dynamicTovoid());
    },
    get C1037() {
      return C[1037] = dart.const(Object.setPrototypeOf({
        [textCapitalization]: C[1035] || CT.C1035
      }, _engine.TextCapitalizationConfig.prototype));
    },
    get C1038() {
      return C[1038] = dart.const(Object.setPrototypeOf({
      }, _engine.TextInputUpdateConfig.prototype));
    },
    get C1039() {
      return C[1039] = dart.const(Object.setPrototypeOf({
      }, _engine.TextInputShow.prototype));
    },
    get C1040() {
      return C[1040] = dart.const(Object.setPrototypeOf({
      }, _engine.TextInputClearClient.prototype));
    },
    get C1041() {
      return C[1041] = dart.const(Object.setPrototypeOf({
      }, _engine.TextInputHide.prototype));
    },
    get C1042() {
      return C[1042] = dart.const(Object.setPrototypeOf({
      }, _engine.TextInputRequestAutofill.prototype));
    },
    get C1043() {
      return C[1043] = dart.const(Object.setPrototypeOf({
      }, _engine.TextInputSetMarkedTextRect.prototype));
    },
    get C1044() {
      return C[1044] = dart.const(Object.setPrototypeOf({
      }, _engine.TextInputSetCaretRect.prototype));
    },
    get C1046() {
      return C[1046] = dart.const(Object.setPrototypeOf({
        [_name$0]: "identity",
        [index$]: 0
      }, _engine.TransformKind.prototype));
    },
    get C1047() {
      return C[1047] = dart.const(Object.setPrototypeOf({
        [_name$0]: "transform2d",
        [index$]: 1
      }, _engine.TransformKind.prototype));
    },
    get C1048() {
      return C[1048] = dart.const(Object.setPrototypeOf({
        [_name$0]: "complex",
        [index$]: 2
      }, _engine.TransformKind.prototype));
    },
    get C1045() {
      return C[1045] = dart.constList([C[1046] || CT.C1046, C[1047] || CT.C1047, C[1048] || CT.C1048], T$12.TransformKindL());
    },
    get C1049() {
      return C[1049] = dart.const(Object.setPrototypeOf({
        [BitmapSize_height]: 0,
        [BitmapSize_width]: 0
      }, _engine.BitmapSize.prototype));
    },
    get C1050() {
      return C[1050] = dart.const(Object.setPrototypeOf({
        [displayFeatures$]: C[915] || CT.C915,
        [gestureSettings$]: C[914] || CT.C914,
        [padding$]: C[635] || CT.C635,
        [systemGestureInsets$]: C[635] || CT.C635,
        [viewPadding$]: C[635] || CT.C635,
        [viewInsets$]: C[635] || CT.C635,
        [visible$]: false,
        [devicePixelRatio$]: 1,
        [view$0]: null
      }, _engine.ViewConfiguration.prototype));
    },
    get C1051() {
      return C[1051] = dart.fn(_engine.canvasKitWasmModuleUrl, T$.StringAndStringToString());
    },
    get C1052() {
      return C[1052] = dart.constList([0, 6, 12, 18], T$2.intL());
    },
    get C1053() {
      return C[1053] = dart.const(Object.setPrototypeOf({
      }, _engine.CkLinearToSrgbGammaColorFilter.prototype));
    },
    get C1054() {
      return C[1054] = dart.const(Object.setPrototypeOf({
      }, _engine.CkSrgbToLinearGammaColorFilter.prototype));
    },
    get C1055() {
      return C[1055] = dart.constMap(T$2.StringL(), T$2.StringL(), ["type", "line"]);
    },
    get C1056() {
      return C[1056] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "clear"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1057() {
      return C[1057] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1058() {
      return C[1058] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "source-in"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1059() {
      return C[1059] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "source-out"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1060() {
      return C[1060] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "source-atop"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1061() {
      return C[1061] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "destination-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1062() {
      return C[1062] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "destination-in"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1063() {
      return C[1063] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "destination-out"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1064() {
      return C[1064] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "destination-atop"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1065() {
      return C[1065] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "lighter"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1066() {
      return C[1066] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "copy"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1067() {
      return C[1067] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 0,
        [compositeOperator$]: "xor"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1068() {
      return C[1068] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 2,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1069() {
      return C[1069] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 3,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1070() {
      return C[1070] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 6,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1071() {
      return C[1071] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 4,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1072() {
      return C[1072] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 5,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1073() {
      return C[1073] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 7,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1074() {
      return C[1074] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 8,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1075() {
      return C[1075] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 9,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1076() {
      return C[1076] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 10,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1077() {
      return C[1077] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 11,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1078() {
      return C[1078] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 12,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1079() {
      return C[1079] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 13,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1080() {
      return C[1080] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 14,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1081() {
      return C[1081] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 15,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1082() {
      return C[1082] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 16,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1083() {
      return C[1083] = dart.const(Object.setPrototypeOf({
        [blendMode$2]: 1,
        [compositeOperator$]: "source-over"
      }, _engine.SvgBlendMode.prototype));
    },
    get C1084() {
      return C[1084] = dart.constList([0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0], T$0.doubleL());
    },
    get C1085() {
      return C[1085] = dart.constList(["dart:async-patch", "dart:async", "dart:_runtime"], T$2.StringL());
    },
    get C1086() {
      return C[1086] = dart.const(Object.setPrototypeOf({
        [end$3]: 0,
        [start$4]: 0,
        [fragmentFlow$0]: C[1005] || CT.C1005,
        [textDirection$2]: null
      }, _engine.BidiFragment.prototype));
    },
    get C1087() {
      return C[1087] = dart.constList([0, 4, 12, 1, 5, 13, 3, 7, 15], T$2.intL());
    },
    get C1088() {
      return C[1088] = dart.constList([-1, 0, 0, 1, 0, 0, -1, 0, 1, 0, 0, 0, -1, 1, 0, 1, 1, 1, 1, 0], T$0.doubleL());
    },
    get C1089() {
      return C[1089] = dart.recordLiteral("2;cacheSize,maxTextLength", 0, ["cacheSize", "maxTextLength"], [100000, 10]);
    },
    get C1090() {
      return C[1090] = dart.recordLiteral("2;cacheSize,maxTextLength", 0, ["cacheSize", "maxTextLength"], [10000, 100]);
    },
    get C1091() {
      return C[1091] = dart.recordLiteral("2;cacheSize,maxTextLength", 0, ["cacheSize", "maxTextLength"], [20, 50000]);
    },
    get C1092() {
      return C[1092] = dart.constSet(T$2.StringL(), ["canvaskit.js"]);
    },
    get C1093() {
      return C[1093] = dart.constList(["attribute", "const", "uniform", "varying", "layout", "centroid", "flat", "smooth", "noperspective", "patch", "sample", "break", "continue", "do", "for", "while", "switch", "case", "default", "if", "else", "subroutine", "in", "out", "inout", "float", "double", "int", "void", "bool", "true", "false", "invariant", "discard", "return", "mat2", "mat3", "mat4", "dmat2", "dmat3", "dmat4", "mat2x2", "mat2x3", "mat2x4", "dmat2x2", "dmat2x3", "dmat2x4", "mat3x2", "mat3x3", "mat3x4", "dmat3x2", "dmat3x3", "dmat3x4", "mat4x2", "mat4x3", "mat4x4", "dmat4x2", "dmat4x3", "dmat4x4", "vec2", "vec3", "vec4", "ivec2", "ivec3", "ivec4", "bvec2", "bvec3", "bvec4", "dvec2", "dvec3", "dvec4", "uint", "uvec2", "uvec3", "uvec4", "lowp", "mediump", "highp", "precision", "sampler1D", "sampler2D", "sampler3D", "samplerCube", "sampler1DShadow", "sampler2DShadow", "samplerCubeShadow", "sampler1DArray", "sampler2DArray", "sampler1DArrayShadow", "sampler2DArrayShadow", "isampler1D", "isampler2D", "isampler3D", "isamplerCube", "isampler1DArray", "isampler2DArray", "usampler1D", "usampler2D", "usampler3D", "usamplerCube", "usampler1DArray", "usampler2DArray", "sampler2DRect", "sampler2DRectShadow", "isampler2DRect", "usampler2DRect", "samplerBuffer", "isamplerBuffer", "usamplerBuffer", "sampler2DMS", "isampler2DMS", "usampler2DMS", "sampler2DMSArray", "isampler2DMSArray", "usampler2DMSArray", "samplerCubeArray", "samplerCubeArrayShadow", "isamplerCubeArray", "usamplerCubeArray", "struct", "texture", "active", "asm", "cast", "class", "common", "enum", "extern", "external", "filter", "fixed", "fvec2", "fvec3", "fvec4", "goto", "half", "hvec2", "hvec3", "hvec4", "iimage1D", "iimage1DArray", "iimage2D", "iimage2DArray", "iimage3D", "iimageBuffer", "iimageCube", "image1D", "image1DArray", "image1DArrayShadow", "image1DShadow", "image2D", "image2DArray", "image2DArrayShadow", "image2DShadow", "image3D", "imageBuffer", "imageCube", "inline", "input", "interface", "long", "namespace", "noinline", "output", "packed", "partition", "public", "row_major", "sampler3DRect", "short", "sizeof", "static", "superp", "template", "this", "typedef", "uimage1D", "uimage1DArray", "uimage2D", "uimage2DArray", "uimage3D", "uimageBuffer", "uimageCube", "union", "unsigned", "using", "volatile"], T$2.StringL());
    },
    get C1094() {
      return C[1094] = dart.const(Object.setPrototypeOf({
        [_duration]: 3000000
      }, core.Duration.prototype));
    },
    get C1095() {
      return C[1095] = dart.constMap(T$2.StringL(), T$2.intL(), ["AVRInput", 4294970632.0, "AVRPower", 4294970633.0, "Accel", 4294967553.0, "Accept", 4294968577.0, "Again", 4294968578.0, "AllCandidates", 4294969089.0, "Alphanumeric", 4294969090.0, "AltGraph", 4294967555.0, "AppSwitch", 4294971393.0, "ArrowDown", 4294968065.0, "ArrowLeft", 4294968066.0, "ArrowRight", 4294968067.0, "ArrowUp", 4294968068.0, "Attn", 4294968579.0, "AudioBalanceLeft", 4294970625.0, "AudioBalanceRight", 4294970626.0, "AudioBassBoostDown", 4294970627.0, "AudioBassBoostToggle", 4294970882.0, "AudioBassBoostUp", 4294970628.0, "AudioFaderFront", 4294970629.0, "AudioFaderRear", 4294970630.0, "AudioSurroundModeNext", 4294970631.0, "AudioTrebleDown", 4294970884.0, "AudioTrebleUp", 4294970885.0, "AudioVolumeDown", 4294969871.0, "AudioVolumeMute", 4294969873.0, "AudioVolumeUp", 4294969872.0, "Backspace", 4294967304.0, "BrightnessDown", 4294968833.0, "BrightnessUp", 4294968834.0, "BrowserBack", 4294970369.0, "BrowserFavorites", 4294970370.0, "BrowserForward", 4294970371.0, "BrowserHome", 4294970372.0, "BrowserRefresh", 4294970373.0, "BrowserSearch", 4294970374.0, "BrowserStop", 4294970375.0, "Call", 4294971394.0, "Camera", 4294968835.0, "CameraFocus", 4294971395.0, "Cancel", 4294968580.0, "CapsLock", 4294967556.0, "ChannelDown", 4294970634.0, "ChannelUp", 4294970635.0, "Clear", 4294968321.0, "Close", 4294969857.0, "ClosedCaptionToggle", 4294970642.0, "CodeInput", 4294969091.0, "ColorF0Red", 4294970636.0, "ColorF1Green", 4294970637.0, "ColorF2Yellow", 4294970638.0, "ColorF3Blue", 4294970639.0, "ColorF4Grey", 4294970640.0, "ColorF5Brown", 4294970641.0, "Compose", 4294969092.0, "ContextMenu", 4294968581.0, "Convert", 4294969093.0, "Copy", 4294968322.0, "CrSel", 4294968323.0, "Cut", 4294968324.0, "DVR", 4294970703.0, "Delete", 4294967423.0, "Dimmer", 4294970643.0, "DisplaySwap", 4294970644.0, "Eisu", 4294969108.0, "Eject", 4294968836.0, "End", 4294968069.0, "EndCall", 4294971396.0, "Enter", 4294967309.0, "EraseEof", 4294968325.0, "Esc", 4294967323.0, "Escape", 4294967323.0, "ExSel", 4294968326.0, "Execute", 4294968582.0, "Exit", 4294970645.0, "F1", 4294969345.0, "F10", 4294969354.0, "F11", 4294969355.0, "F12", 4294969356.0, "F13", 4294969357.0, "F14", 4294969358.0, "F15", 4294969359.0, "F16", 4294969360.0, "F17", 4294969361.0, "F18", 4294969362.0, "F19", 4294969363.0, "F2", 4294969346.0, "F20", 4294969364.0, "F21", 4294969365.0, "F22", 4294969366.0, "F23", 4294969367.0, "F24", 4294969368.0, "F3", 4294969347.0, "F4", 4294969348.0, "F5", 4294969349.0, "F6", 4294969350.0, "F7", 4294969351.0, "F8", 4294969352.0, "F9", 4294969353.0, "FavoriteClear0", 4294970646.0, "FavoriteClear1", 4294970647.0, "FavoriteClear2", 4294970648.0, "FavoriteClear3", 4294970649.0, "FavoriteRecall0", 4294970650.0, "FavoriteRecall1", 4294970651.0, "FavoriteRecall2", 4294970652.0, "FavoriteRecall3", 4294970653.0, "FavoriteStore0", 4294970654.0, "FavoriteStore1", 4294970655.0, "FavoriteStore2", 4294970656.0, "FavoriteStore3", 4294970657.0, "FinalMode", 4294969094.0, "Find", 4294968583.0, "Fn", 4294967558.0, "FnLock", 4294967559.0, "GoBack", 4294971397.0, "GoHome", 4294971398.0, "GroupFirst", 4294969095.0, "GroupLast", 4294969096.0, "GroupNext", 4294969097.0, "GroupPrevious", 4294969098.0, "Guide", 4294970658.0, "GuideNextDay", 4294970659.0, "GuidePreviousDay", 4294970660.0, "HangulMode", 4294969105.0, "HanjaMode", 4294969106.0, "Hankaku", 4294969109.0, "HeadsetHook", 4294971399.0, "Help", 4294968584.0, "Hibernate", 4294968841.0, "Hiragana", 4294969110.0, "HiraganaKatakana", 4294969111.0, "Home", 4294968070.0, "Hyper", 4294967560.0, "Info", 4294970661.0, "Insert", 4294968327.0, "InstantReplay", 4294970662.0, "JunjaMode", 4294969107.0, "KanaMode", 4294969112.0, "KanjiMode", 4294969113.0, "Katakana", 4294969114.0, "Key11", 4294971905.0, "Key12", 4294971906.0, "LastNumberRedial", 4294971400.0, "LaunchApplication1", 4294970118.0, "LaunchApplication2", 4294970113.0, "LaunchAssistant", 4294970126.0, "LaunchCalendar", 4294970114.0, "LaunchContacts", 4294970124.0, "LaunchControlPanel", 4294970127.0, "LaunchMail", 4294970115.0, "LaunchMediaPlayer", 4294970116.0, "LaunchMusicPlayer", 4294970117.0, "LaunchPhone", 4294970125.0, "LaunchScreenSaver", 4294970119.0, "LaunchSpreadsheet", 4294970120.0, "LaunchWebBrowser", 4294970121.0, "LaunchWebCam", 4294970122.0, "LaunchWordProcessor", 4294970123.0, "Link", 4294970663.0, "ListProgram", 4294970664.0, "LiveContent", 4294970665.0, "Lock", 4294970666.0, "LogOff", 4294968837.0, "MailForward", 4294969858.0, "MailReply", 4294969859.0, "MailSend", 4294969860.0, "MannerMode", 4294971402.0, "MediaApps", 4294970667.0, "MediaAudioTrack", 4294970704.0, "MediaClose", 4294970715.0, "MediaFastForward", 4294970668.0, "MediaLast", 4294970669.0, "MediaPause", 4294970670.0, "MediaPlay", 4294970671.0, "MediaPlayPause", 4294969861.0, "MediaRecord", 4294970672.0, "MediaRewind", 4294970673.0, "MediaSkip", 4294970674.0, "MediaSkipBackward", 4294970705.0, "MediaSkipForward", 4294970706.0, "MediaStepBackward", 4294970707.0, "MediaStepForward", 4294970708.0, "MediaStop", 4294969863.0, "MediaTopMenu", 4294970709.0, "MediaTrackNext", 4294969864.0, "MediaTrackPrevious", 4294969865.0, "MicrophoneToggle", 4294970886.0, "MicrophoneVolumeDown", 4294970887.0, "MicrophoneVolumeMute", 4294970889.0, "MicrophoneVolumeUp", 4294970888.0, "ModeChange", 4294969099.0, "NavigateIn", 4294970710.0, "NavigateNext", 4294970711.0, "NavigateOut", 4294970712.0, "NavigatePrevious", 4294970713.0, "New", 4294969866.0, "NextCandidate", 4294969100.0, "NextFavoriteChannel", 4294970675.0, "NextUserProfile", 4294970676.0, "NonConvert", 4294969101.0, "Notification", 4294971401.0, "NumLock", 4294967562.0, "OnDemand", 4294970677.0, "Open", 4294969867.0, "PageDown", 4294968071.0, "PageUp", 4294968072.0, "Pairing", 4294970714.0, "Paste", 4294968328.0, "Pause", 4294968585.0, "PinPDown", 4294970678.0, "PinPMove", 4294970679.0, "PinPToggle", 4294970680.0, "PinPUp", 4294970681.0, "Play", 4294968586.0, "PlaySpeedDown", 4294970682.0, "PlaySpeedReset", 4294970683.0, "PlaySpeedUp", 4294970684.0, "Power", 4294968838.0, "PowerOff", 4294968839.0, "PreviousCandidate", 4294969102.0, "Print", 4294969868.0, "PrintScreen", 4294968840.0, "Process", 4294969103.0, "Props", 4294968587.0, "RandomToggle", 4294970685.0, "RcLowBattery", 4294970686.0, "RecordSpeedNext", 4294970687.0, "Redo", 4294968329.0, "RfBypass", 4294970688.0, "Romaji", 4294969115.0, "STBInput", 4294970693.0, "STBPower", 4294970694.0, "Save", 4294969869.0, "ScanChannelsToggle", 4294970689.0, "ScreenModeNext", 4294970690.0, "ScrollLock", 4294967564.0, "Select", 4294968588.0, "Settings", 4294970691.0, "ShiftLevel5", 4294967569.0, "SingleCandidate", 4294969104.0, "Soft1", 4294969601.0, "Soft2", 4294969602.0, "Soft3", 4294969603.0, "Soft4", 4294969604.0, "Soft5", 4294969605.0, "Soft6", 4294969606.0, "Soft7", 4294969607.0, "Soft8", 4294969608.0, "SpeechCorrectionList", 4294971137.0, "SpeechInputToggle", 4294971138.0, "SpellCheck", 4294969870.0, "SplitScreenToggle", 4294970692.0, "Standby", 4294968842.0, "Subtitle", 4294970695.0, "Super", 4294967566.0, "Symbol", 4294967567.0, "SymbolLock", 4294967568.0, "TV", 4294970697.0, "TV3DMode", 4294971649.0, "TVAntennaCable", 4294971650.0, "TVAudioDescription", 4294971651.0, "TVAudioDescriptionMixDown", 4294971652.0, "TVAudioDescriptionMixUp", 4294971653.0, "TVContentsMenu", 4294971654.0, "TVDataService", 4294971655.0, "TVInput", 4294970698.0, "TVInputComponent1", 4294971656.0, "TVInputComponent2", 4294971657.0, "TVInputComposite1", 4294971658.0, "TVInputComposite2", 4294971659.0, "TVInputHDMI1", 4294971660.0, "TVInputHDMI2", 4294971661.0, "TVInputHDMI3", 4294971662.0, "TVInputHDMI4", 4294971663.0, "TVInputVGA1", 4294971664.0, "TVMediaContext", 4294971665.0, "TVNetwork", 4294971666.0, "TVNumberEntry", 4294971667.0, "TVPower", 4294970699.0, "TVRadioService", 4294971668.0, "TVSatellite", 4294971669.0, "TVSatelliteBS", 4294971670.0, "TVSatelliteCS", 4294971671.0, "TVSatelliteToggle", 4294971672.0, "TVTerrestrialAnalog", 4294971673.0, "TVTerrestrialDigital", 4294971674.0, "TVTimer", 4294971675.0, "Tab", 4294967305.0, "Teletext", 4294970696.0, "Undo", 4294968330.0, "Unidentified", 4294967297.0, "VideoModeNext", 4294970700.0, "VoiceDial", 4294971403.0, "WakeUp", 4294968843.0, "Wink", 4294970701.0, "Zenkaku", 4294969116.0, "ZenkakuHankaku", 4294969117.0, "ZoomIn", 4294968589.0, "ZoomOut", 4294968590.0, "ZoomToggle", 4294970702.0]);
    },
    get C1096() {
      return C[1096] = dart.constMap(T$2.StringL(), T$2.intL(), ["Abort", 458907, "Again", 458873, "AltLeft", 458978, "AltRight", 458982, "ArrowDown", 458833, "ArrowLeft", 458832, "ArrowRight", 458831, "ArrowUp", 458834, "AudioVolumeDown", 458881, "AudioVolumeMute", 458879, "AudioVolumeUp", 458880, "Backquote", 458805, "Backslash", 458801, "Backspace", 458794, "BracketLeft", 458799, "BracketRight", 458800, "BrightnessDown", 786544, "BrightnessUp", 786543, "BrowserBack", 786980, "BrowserFavorites", 786986, "BrowserForward", 786981, "BrowserHome", 786979, "BrowserRefresh", 786983, "BrowserSearch", 786977, "BrowserStop", 786982, "CapsLock", 458809, "Comma", 458806, "ContextMenu", 458853, "ControlLeft", 458976, "ControlRight", 458980, "Convert", 458890, "Copy", 458876, "Cut", 458875, "Delete", 458828, "Digit0", 458791, "Digit1", 458782, "Digit2", 458783, "Digit3", 458784, "Digit4", 458785, "Digit5", 458786, "Digit6", 458787, "Digit7", 458788, "Digit8", 458789, "Digit9", 458790, "DisplayToggleIntExt", 65717, "Eject", 786616, "End", 458829, "Enter", 458792, "Equal", 458798, "Esc", 458793, "Escape", 458793, "F1", 458810, "F10", 458819, "F11", 458820, "F12", 458821, "F13", 458856, "F14", 458857, "F15", 458858, "F16", 458859, "F17", 458860, "F18", 458861, "F19", 458862, "F2", 458811, "F20", 458863, "F21", 458864, "F22", 458865, "F23", 458866, "F24", 458867, "F3", 458812, "F4", 458813, "F5", 458814, "F6", 458815, "F7", 458816, "F8", 458817, "F9", 458818, "Find", 458878, "Fn", 18, "FnLock", 19, "GameButton1", 392961, "GameButton10", 392970, "GameButton11", 392971, "GameButton12", 392972, "GameButton13", 392973, "GameButton14", 392974, "GameButton15", 392975, "GameButton16", 392976, "GameButton2", 392962, "GameButton3", 392963, "GameButton4", 392964, "GameButton5", 392965, "GameButton6", 392966, "GameButton7", 392967, "GameButton8", 392968, "GameButton9", 392969, "GameButtonA", 392977, "GameButtonB", 392978, "GameButtonC", 392979, "GameButtonLeft1", 392980, "GameButtonLeft2", 392981, "GameButtonMode", 392982, "GameButtonRight1", 392983, "GameButtonRight2", 392984, "GameButtonSelect", 392985, "GameButtonStart", 392986, "GameButtonThumbLeft", 392987, "GameButtonThumbRight", 392988, "GameButtonX", 392989, "GameButtonY", 392990, "GameButtonZ", 392991, "Help", 458869, "Home", 458826, "Hyper", 16, "Insert", 458825, "IntlBackslash", 458852, "IntlRo", 458887, "IntlYen", 458889, "KanaMode", 458888, "KeyA", 458756, "KeyB", 458757, "KeyC", 458758, "KeyD", 458759, "KeyE", 458760, "KeyF", 458761, "KeyG", 458762, "KeyH", 458763, "KeyI", 458764, "KeyJ", 458765, "KeyK", 458766, "KeyL", 458767, "KeyM", 458768, "KeyN", 458769, "KeyO", 458770, "KeyP", 458771, "KeyQ", 458772, "KeyR", 458773, "KeyS", 458774, "KeyT", 458775, "KeyU", 458776, "KeyV", 458777, "KeyW", 458778, "KeyX", 458779, "KeyY", 458780, "KeyZ", 458781, "KeyboardLayoutSelect", 787101, "Lang1", 458896, "Lang2", 458897, "Lang3", 458898, "Lang4", 458899, "Lang5", 458900, "LaunchApp1", 786836, "LaunchApp2", 786834, "LaunchAssistant", 786891, "LaunchControlPanel", 786847, "LaunchMail", 786826, "LaunchScreenSaver", 786865, "MailForward", 787083, "MailReply", 787081, "MailSend", 787084, "MediaFastForward", 786611, "MediaPause", 786609, "MediaPlay", 786608, "MediaPlayPause", 786637, "MediaRecord", 786610, "MediaRewind", 786612, "MediaSelect", 786819, "MediaStop", 786615, "MediaTrackNext", 786613, "MediaTrackPrevious", 786614, "MetaLeft", 458979, "MetaRight", 458983, "MicrophoneMuteToggle", 24, "Minus", 458797, "NonConvert", 458891, "NumLock", 458835, "Numpad0", 458850, "Numpad1", 458841, "Numpad2", 458842, "Numpad3", 458843, "Numpad4", 458844, "Numpad5", 458845, "Numpad6", 458846, "Numpad7", 458847, "Numpad8", 458848, "Numpad9", 458849, "NumpadAdd", 458839, "NumpadBackspace", 458939, "NumpadClear", 458968, "NumpadClearEntry", 458969, "NumpadComma", 458885, "NumpadDecimal", 458851, "NumpadDivide", 458836, "NumpadEnter", 458840, "NumpadEqual", 458855, "NumpadMemoryAdd", 458963, "NumpadMemoryClear", 458962, "NumpadMemoryRecall", 458961, "NumpadMemoryStore", 458960, "NumpadMemorySubtract", 458964, "NumpadMultiply", 458837, "NumpadParenLeft", 458934, "NumpadParenRight", 458935, "NumpadSubtract", 458838, "Open", 458868, "PageDown", 458830, "PageUp", 458827, "Paste", 458877, "Pause", 458824, "Period", 458807, "Power", 458854, "PrintScreen", 458822, "PrivacyScreenToggle", 23, "Props", 458915, "Quote", 458804, "Resume", 21, "ScrollLock", 458823, "Select", 458871, "SelectTask", 786850, "Semicolon", 458803, "ShiftLeft", 458977, "ShiftRight", 458981, "ShowAllWindows", 787103, "Slash", 458808, "Sleep", 65666, "Space", 458796, "Super", 17, "Suspend", 20, "Tab", 458795, "Turbo", 22, "Undo", 458874, "WakeUp", 65667, "ZoomToggle", 786994]);
    },
    get C1098() {
      return C[1098] = dart.constList([42, null, null, 8589935146.0], T$.intN());
    },
    get C1099() {
      return C[1099] = dart.constList([43, null, null, 8589935147.0], T$.intN());
    },
    get C1100() {
      return C[1100] = dart.constList([45, null, null, 8589935149.0], T$.intN());
    },
    get C1101() {
      return C[1101] = dart.constList([46, null, null, 8589935150.0], T$.intN());
    },
    get C1102() {
      return C[1102] = dart.constList([47, null, null, 8589935151.0], T$.intN());
    },
    get C1103() {
      return C[1103] = dart.constList([48, null, null, 8589935152.0], T$.intN());
    },
    get C1104() {
      return C[1104] = dart.constList([49, null, null, 8589935153.0], T$.intN());
    },
    get C1105() {
      return C[1105] = dart.constList([50, null, null, 8589935154.0], T$.intN());
    },
    get C1106() {
      return C[1106] = dart.constList([51, null, null, 8589935155.0], T$.intN());
    },
    get C1107() {
      return C[1107] = dart.constList([52, null, null, 8589935156.0], T$.intN());
    },
    get C1108() {
      return C[1108] = dart.constList([53, null, null, 8589935157.0], T$.intN());
    },
    get C1109() {
      return C[1109] = dart.constList([54, null, null, 8589935158.0], T$.intN());
    },
    get C1110() {
      return C[1110] = dart.constList([55, null, null, 8589935159.0], T$.intN());
    },
    get C1111() {
      return C[1111] = dart.constList([56, null, null, 8589935160.0], T$.intN());
    },
    get C1112() {
      return C[1112] = dart.constList([57, null, null, 8589935161.0], T$.intN());
    },
    get C1113() {
      return C[1113] = dart.constList([8589934852.0, 8589934852.0, 8589934853.0, null], T$.intN());
    },
    get C1114() {
      return C[1114] = dart.constList([4294967555.0, null, 4294967555.0, null], T$.intN());
    },
    get C1115() {
      return C[1115] = dart.constList([4294968065.0, null, null, 8589935154.0], T$.intN());
    },
    get C1116() {
      return C[1116] = dart.constList([4294968066.0, null, null, 8589935156.0], T$.intN());
    },
    get C1117() {
      return C[1117] = dart.constList([4294968067.0, null, null, 8589935158.0], T$.intN());
    },
    get C1118() {
      return C[1118] = dart.constList([4294968068.0, null, null, 8589935160.0], T$.intN());
    },
    get C1119() {
      return C[1119] = dart.constList([4294968321.0, null, null, 8589935157.0], T$.intN());
    },
    get C1120() {
      return C[1120] = dart.constList([8589934848.0, 8589934848.0, 8589934849.0, null], T$.intN());
    },
    get C1121() {
      return C[1121] = dart.constList([4294967423.0, null, null, 8589935150.0], T$.intN());
    },
    get C1122() {
      return C[1122] = dart.constList([4294968069.0, null, null, 8589935153.0], T$.intN());
    },
    get C1123() {
      return C[1123] = dart.constList([4294967309.0, null, null, 8589935117.0], T$.intN());
    },
    get C1124() {
      return C[1124] = dart.constList([4294968070.0, null, null, 8589935159.0], T$.intN());
    },
    get C1125() {
      return C[1125] = dart.constList([4294968327.0, null, null, 8589935152.0], T$.intN());
    },
    get C1126() {
      return C[1126] = dart.constList([8589934854.0, 8589934854.0, 8589934855.0, null], T$.intN());
    },
    get C1127() {
      return C[1127] = dart.constList([4294968071.0, null, null, 8589935155.0], T$.intN());
    },
    get C1128() {
      return C[1128] = dart.constList([4294968072.0, null, null, 8589935161.0], T$.intN());
    },
    get C1129() {
      return C[1129] = dart.constList([8589934850.0, 8589934850.0, 8589934851.0, null], T$.intN());
    },
    get C1097() {
      return C[1097] = dart.constMap(T$2.StringL(), T$13.ListLOfintN(), ["*", C[1098] || CT.C1098, "+", C[1099] || CT.C1099, "-", C[1100] || CT.C1100, ".", C[1101] || CT.C1101, "/", C[1102] || CT.C1102, "0", C[1103] || CT.C1103, "1", C[1104] || CT.C1104, "2", C[1105] || CT.C1105, "3", C[1106] || CT.C1106, "4", C[1107] || CT.C1107, "5", C[1108] || CT.C1108, "6", C[1109] || CT.C1109, "7", C[1110] || CT.C1110, "8", C[1111] || CT.C1111, "9", C[1112] || CT.C1112, "Alt", C[1113] || CT.C1113, "AltGraph", C[1114] || CT.C1114, "ArrowDown", C[1115] || CT.C1115, "ArrowLeft", C[1116] || CT.C1116, "ArrowRight", C[1117] || CT.C1117, "ArrowUp", C[1118] || CT.C1118, "Clear", C[1119] || CT.C1119, "Control", C[1120] || CT.C1120, "Delete", C[1121] || CT.C1121, "End", C[1122] || CT.C1122, "Enter", C[1123] || CT.C1123, "Home", C[1124] || CT.C1124, "Insert", C[1125] || CT.C1125, "Meta", C[1126] || CT.C1126, "PageDown", C[1127] || CT.C1127, "PageUp", C[1128] || CT.C1128, "Shift", C[1129] || CT.C1129]);
    },
    get C1130() {
      return C[1130] = dart.const(Object.setPrototypeOf({
        [synthesized$]: false,
        [character$]: null,
        [logical$]: 0,
        [physical$]: 0,
        [deviceType$]: C[534] || CT.C534,
        [type$2]: C[530] || CT.C530,
        [timeStamp$]: C[472] || CT.C472
      }, ui.KeyData.prototype));
    },
    get C1131() {
      return C[1131] = dart.constSet(T$2.StringL(), ["decoding", "__flutter_state"]);
    },
    get C1132() {
      return C[1132] = dart.const(Object.setPrototypeOf({
        [_duration]: 300000
      }, core.Duration.prototype));
    },
    get C1133() {
      return C[1133] = dart.constSet(T$2.intL(), [10, 11, 12, 13, 133, 8232, 8233]);
    },
    get C1134() {
      return C[1134] = dart.constSet(T$2.intL(), [32, 8203]);
    },
    get C1135() {
      return C[1135] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 90,
        [start$5]: 65
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1136() {
      return C[1136] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 122,
        [start$5]: 97
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1137() {
      return C[1137] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 214,
        [start$5]: 192
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1138() {
      return C[1138] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 246,
        [start$5]: 216
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1139() {
      return C[1139] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 696,
        [start$5]: 248
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1140() {
      return C[1140] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 1424,
        [start$5]: 768
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1141() {
      return C[1141] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[784] || CT.C784,
        [end$4]: 1775,
        [start$5]: 1425
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1142() {
      return C[1142] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[784] || CT.C784,
        [end$4]: 2303,
        [start$5]: 1786
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1143() {
      return C[1143] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 8191,
        [start$5]: 2304
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1144() {
      return C[1144] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 8206,
        [start$5]: 8206
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1145() {
      return C[1145] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[784] || CT.C784,
        [end$4]: 8207,
        [start$5]: 8207
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1146() {
      return C[1146] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 55297,
        [start$5]: 11264
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1147() {
      return C[1147] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[784] || CT.C784,
        [end$4]: 55299,
        [start$5]: 55298
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1148() {
      return C[1148] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 55353,
        [start$5]: 55300
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1149() {
      return C[1149] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[784] || CT.C784,
        [end$4]: 55355,
        [start$5]: 55354
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1150() {
      return C[1150] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 56319,
        [start$5]: 55356
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1151() {
      return C[1151] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 64284,
        [start$5]: 63744
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1152() {
      return C[1152] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[784] || CT.C784,
        [end$4]: 65023,
        [start$5]: 64285
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1153() {
      return C[1153] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 65135,
        [start$5]: 65024
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1154() {
      return C[1154] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[784] || CT.C784,
        [end$4]: 65276,
        [start$5]: 65136
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1155() {
      return C[1155] = dart.const(Object.setPrototypeOf({
        $ti: T$13.UnicodeRangeOfTextDirectionL(),
        [property$]: C[785] || CT.C785,
        [end$4]: 65535,
        [start$5]: 65277
      }, G$.UnicodeRangeOfTextDirectionL().prototype));
    },
    get C1156() {
      return C[1156] = dart.constSet(T$2.StringL(), ["serif", "sans-serif", "monospace", "cursive", "fantasy", "system-ui", "math", "emoji", "fangsong"]);
    },
    get C1157() {
      return C[1157] = dart.recordLiteral("3;x,y,z", 0, ["x", "y", "z"], [1, 0, 0]);
    },
    get C1158() {
      return C[1158] = dart.recordLiteral("3;x,y,z", 0, ["x", "y", "z"], [0, 1, 0]);
    },
    get C1159() {
      return C[1159] = dart.recordLiteral("3;x,y,z", 0, ["x", "y", "z"], [0, 0, 1]);
    },
    get C1161() {
      return C[1161] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CM",
        [index$]: 0
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1162() {
      return C[1162] = dart.const(Object.setPrototypeOf({
        [_name$0]: "BA",
        [index$]: 1
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1163() {
      return C[1163] = dart.const(Object.setPrototypeOf({
        [_name$0]: "LF",
        [index$]: 2
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1164() {
      return C[1164] = dart.const(Object.setPrototypeOf({
        [_name$0]: "BK",
        [index$]: 3
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1165() {
      return C[1165] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CR",
        [index$]: 4
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1166() {
      return C[1166] = dart.const(Object.setPrototypeOf({
        [_name$0]: "SP",
        [index$]: 5
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1167() {
      return C[1167] = dart.const(Object.setPrototypeOf({
        [_name$0]: "EX",
        [index$]: 6
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1168() {
      return C[1168] = dart.const(Object.setPrototypeOf({
        [_name$0]: "QU",
        [index$]: 7
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1169() {
      return C[1169] = dart.const(Object.setPrototypeOf({
        [_name$0]: "AL",
        [index$]: 8
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1170() {
      return C[1170] = dart.const(Object.setPrototypeOf({
        [_name$0]: "PR",
        [index$]: 9
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1171() {
      return C[1171] = dart.const(Object.setPrototypeOf({
        [_name$0]: "PO",
        [index$]: 10
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1172() {
      return C[1172] = dart.const(Object.setPrototypeOf({
        [_name$0]: "OP",
        [index$]: 11
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1173() {
      return C[1173] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CP",
        [index$]: 12
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1174() {
      return C[1174] = dart.const(Object.setPrototypeOf({
        [_name$0]: "IS",
        [index$]: 13
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1175() {
      return C[1175] = dart.const(Object.setPrototypeOf({
        [_name$0]: "HY",
        [index$]: 14
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1176() {
      return C[1176] = dart.const(Object.setPrototypeOf({
        [_name$0]: "SY",
        [index$]: 15
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1177() {
      return C[1177] = dart.const(Object.setPrototypeOf({
        [_name$0]: "NU",
        [index$]: 16
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1178() {
      return C[1178] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CL",
        [index$]: 17
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1179() {
      return C[1179] = dart.const(Object.setPrototypeOf({
        [_name$0]: "GL",
        [index$]: 18
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1180() {
      return C[1180] = dart.const(Object.setPrototypeOf({
        [_name$0]: "BB",
        [index$]: 19
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1181() {
      return C[1181] = dart.const(Object.setPrototypeOf({
        [_name$0]: "HL",
        [index$]: 20
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1182() {
      return C[1182] = dart.const(Object.setPrototypeOf({
        [_name$0]: "JL",
        [index$]: 21
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1183() {
      return C[1183] = dart.const(Object.setPrototypeOf({
        [_name$0]: "JV",
        [index$]: 22
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1184() {
      return C[1184] = dart.const(Object.setPrototypeOf({
        [_name$0]: "JT",
        [index$]: 23
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1185() {
      return C[1185] = dart.const(Object.setPrototypeOf({
        [_name$0]: "NS",
        [index$]: 24
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1186() {
      return C[1186] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ZW",
        [index$]: 25
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1187() {
      return C[1187] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ZWJ",
        [index$]: 26
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1188() {
      return C[1188] = dart.const(Object.setPrototypeOf({
        [_name$0]: "B2",
        [index$]: 27
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1189() {
      return C[1189] = dart.const(Object.setPrototypeOf({
        [_name$0]: "IN",
        [index$]: 28
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1190() {
      return C[1190] = dart.const(Object.setPrototypeOf({
        [_name$0]: "WJ",
        [index$]: 29
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1191() {
      return C[1191] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ID",
        [index$]: 30
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1192() {
      return C[1192] = dart.const(Object.setPrototypeOf({
        [_name$0]: "EB",
        [index$]: 31
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1193() {
      return C[1193] = dart.const(Object.setPrototypeOf({
        [_name$0]: "H2",
        [index$]: 32
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1194() {
      return C[1194] = dart.const(Object.setPrototypeOf({
        [_name$0]: "H3",
        [index$]: 33
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1195() {
      return C[1195] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CB",
        [index$]: 34
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1196() {
      return C[1196] = dart.const(Object.setPrototypeOf({
        [_name$0]: "RI",
        [index$]: 35
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1197() {
      return C[1197] = dart.const(Object.setPrototypeOf({
        [_name$0]: "EM",
        [index$]: 36
      }, _web_unicode.LineCharProperty.prototype));
    },
    get C1160() {
      return C[1160] = dart.constList([C[1161] || CT.C1161, C[1162] || CT.C1162, C[1163] || CT.C1163, C[1164] || CT.C1164, C[1165] || CT.C1165, C[1166] || CT.C1166, C[1167] || CT.C1167, C[1168] || CT.C1168, C[1169] || CT.C1169, C[1170] || CT.C1170, C[1171] || CT.C1171, C[1172] || CT.C1172, C[1173] || CT.C1173, C[1174] || CT.C1174, C[1175] || CT.C1175, C[1176] || CT.C1176, C[1177] || CT.C1177, C[1178] || CT.C1178, C[1179] || CT.C1179, C[1180] || CT.C1180, C[1181] || CT.C1181, C[1182] || CT.C1182, C[1183] || CT.C1183, C[1184] || CT.C1184, C[1185] || CT.C1185, C[1186] || CT.C1186, C[1187] || CT.C1187, C[1188] || CT.C1188, C[1189] || CT.C1189, C[1190] || CT.C1190, C[1191] || CT.C1191, C[1192] || CT.C1192, C[1193] || CT.C1193, C[1194] || CT.C1194, C[1195] || CT.C1195, C[1196] || CT.C1196, C[1197] || CT.C1197], T$13.LineCharPropertyL());
    },
    get C1199() {
      return C[1199] = dart.const(Object.setPrototypeOf({
        [_name$0]: "DoubleQuote",
        [index$]: 0
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1200() {
      return C[1200] = dart.const(Object.setPrototypeOf({
        [_name$0]: "SingleQuote",
        [index$]: 1
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1201() {
      return C[1201] = dart.const(Object.setPrototypeOf({
        [_name$0]: "HebrewLetter",
        [index$]: 2
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1202() {
      return C[1202] = dart.const(Object.setPrototypeOf({
        [_name$0]: "CR",
        [index$]: 3
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1203() {
      return C[1203] = dart.const(Object.setPrototypeOf({
        [_name$0]: "LF",
        [index$]: 4
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1204() {
      return C[1204] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Newline",
        [index$]: 5
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1205() {
      return C[1205] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Extend",
        [index$]: 6
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1206() {
      return C[1206] = dart.const(Object.setPrototypeOf({
        [_name$0]: "RegionalIndicator",
        [index$]: 7
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1207() {
      return C[1207] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Format",
        [index$]: 8
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1208() {
      return C[1208] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Katakana",
        [index$]: 9
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1209() {
      return C[1209] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ALetter",
        [index$]: 10
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1210() {
      return C[1210] = dart.const(Object.setPrototypeOf({
        [_name$0]: "MidLetter",
        [index$]: 11
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1211() {
      return C[1211] = dart.const(Object.setPrototypeOf({
        [_name$0]: "MidNum",
        [index$]: 12
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1212() {
      return C[1212] = dart.const(Object.setPrototypeOf({
        [_name$0]: "MidNumLet",
        [index$]: 13
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1213() {
      return C[1213] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Numeric",
        [index$]: 14
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1214() {
      return C[1214] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ExtendNumLet",
        [index$]: 15
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1215() {
      return C[1215] = dart.const(Object.setPrototypeOf({
        [_name$0]: "ZWJ",
        [index$]: 16
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1216() {
      return C[1216] = dart.const(Object.setPrototypeOf({
        [_name$0]: "WSegSpace",
        [index$]: 17
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1217() {
      return C[1217] = dart.const(Object.setPrototypeOf({
        [_name$0]: "Unknown",
        [index$]: 18
      }, _web_unicode.WordCharProperty.prototype));
    },
    get C1198() {
      return C[1198] = dart.constList([C[1199] || CT.C1199, C[1200] || CT.C1200, C[1201] || CT.C1201, C[1202] || CT.C1202, C[1203] || CT.C1203, C[1204] || CT.C1204, C[1205] || CT.C1205, C[1206] || CT.C1206, C[1207] || CT.C1207, C[1208] || CT.C1208, C[1209] || CT.C1209, C[1210] || CT.C1210, C[1211] || CT.C1211, C[1212] || CT.C1212, C[1213] || CT.C1213, C[1214] || CT.C1214, C[1215] || CT.C1215, C[1216] || CT.C1216, C[1217] || CT.C1217], T$13.WordCharPropertyL());
    },
    get C1218() {
      return C[1218] = dart.constMap(T$2.StringL(), T$2.StringL(), ["KeyA", "a", "KeyB", "b", "KeyC", "c", "KeyD", "d", "KeyE", "e", "KeyF", "f", "KeyG", "g", "KeyH", "h", "KeyI", "i", "KeyJ", "j", "KeyK", "k", "KeyL", "l", "KeyM", "m", "KeyN", "n", "KeyO", "o", "KeyP", "p", "KeyQ", "q", "KeyR", "r", "KeyS", "s", "KeyT", "t", "KeyU", "u", "KeyV", "v", "KeyW", "w", "KeyX", "x", "KeyY", "y", "KeyZ", "z", "Digit1", "1", "Digit2", "2", "Digit3", "3", "Digit4", "4", "Digit5", "5", "Digit6", "6", "Digit7", "7", "Digit8", "8", "Digit9", "9", "Digit0", "0", "Minus", "-", "Equal", "=", "BracketLeft", "[", "BracketRight", "]", "Backslash", "\\", "Semicolon", ";", "Quote", "'", "Backquote", "`", "Comma", ",", "Period", ".", "Slash", "/"]);
    },
    get C1219() {
      return C[1219] = dart.const(Object.setPrototypeOf({
        [_duration]: 120000000
      }, core.Duration.prototype));
    },
    get C1220() {
      return C[1220] = dart.constList(["cache-control", "connection", "date", "pragma", "trailer", "transfer-encoding", "upgrade", "via", "warning"], T$2.StringL());
    },
    get C1221() {
      return C[1221] = dart.constList(["allow", "content-encoding", "content-language", "content-length", "content-location", "content-md5", "content-range", "content-type", "expires", "last-modified"], T$2.StringL());
    },
    get C1222() {
      return C[1222] = dart.constList(["accept-ranges", "age", "etag", "location", "proxy-authenticate", "retry-after", "server", "vary", "www-authenticate", "content-disposition"], T$2.StringL());
    },
    get C1223() {
      return C[1223] = dart.constList(["accept", "accept-charset", "accept-encoding", "accept-language", "authorization", "expect", "from", "host", "if-match", "if-modified-since", "if-none-match", "if-range", "if-unmodified-since", "max-forwards", "proxy-authorization", "range", "referer", "te", "user-agent"], T$2.StringL());
    },
    get C1224() {
      return C[1224] = dart.constMap(T$2.StringL(), T$.StringN(), []);
    },
    get C1225() {
      return C[1225] = dart.const(Object.setPrototypeOf({
        [name$26]: "Lax"
      }, _http.SameSite.prototype));
    },
    get C1226() {
      return C[1226] = dart.const(Object.setPrototypeOf({
        [name$26]: "Strict"
      }, _http.SameSite.prototype));
    },
    get C1227() {
      return C[1227] = dart.const(Object.setPrototypeOf({
        [name$26]: "None"
      }, _http.SameSite.prototype));
    },
    get C1228() {
      return C[1228] = dart.constList([C[1225] || CT.C1225, C[1226] || CT.C1226, C[1227] || CT.C1227], T$13.SameSiteL());
    },
    get C1229() {
      return C[1229] = dart.const(Object.setPrototypeOf({
        [_duration]: 15000000
      }, core.Duration.prototype));
    },
    get C1231() {
      return C[1231] = dart.const(Object.setPrototypeOf({
        [_name$0]: "notCompressed",
        [index$]: 0
      }, _http.HttpClientResponseCompressionState.prototype));
    },
    get C1232() {
      return C[1232] = dart.const(Object.setPrototypeOf({
        [_name$0]: "decompressed",
        [index$]: 1
      }, _http.HttpClientResponseCompressionState.prototype));
    },
    get C1233() {
      return C[1233] = dart.const(Object.setPrototypeOf({
        [_name$0]: "compressed",
        [index$]: 2
      }, _http.HttpClientResponseCompressionState.prototype));
    },
    get C1230() {
      return C[1230] = dart.constList([C[1231] || CT.C1231, C[1232] || CT.C1232, C[1233] || CT.C1233], T$13.HttpClientResponseCompressionStateL());
    },
    get C1234() {
      return C[1234] = dart.constList([3614090360.0, 3905402710.0, 606105819, 3250441966.0, 4118548399.0, 1200080426, 2821735955.0, 4249261313.0, 1770035416, 2336552879.0, 4294925233.0, 2304563134.0, 1804603682, 4254626195.0, 2792965006.0, 1236535329, 4129170786.0, 3225465664.0, 643717713, 3921069994.0, 3593408605.0, 38016083, 3634488961.0, 3889429448.0, 568446438, 3275163606.0, 4107603335.0, 1163531501, 2850285829.0, 4243563512.0, 1735328473, 2368359562.0, 4294588738.0, 2272392833.0, 1839030562, 4259657740.0, 2763975236.0, 1272893353, 4139469664.0, 3200236656.0, 681279174, 3936430074.0, 3572445317.0, 76029189, 3654602809.0, 3873151461.0, 530742520, 3299628645.0, 4096336452.0, 1126891415, 2878612391.0, 4237533241.0, 1700485571, 2399980690.0, 4293915773.0, 2240044497.0, 1873313359, 4264355552.0, 2734768916.0, 1309151649, 4149444226.0, 3174756917.0, 718787259, 3951481745.0], T$2.intL());
    },
    get C1235() {
      return C[1235] = dart.constList([7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 7, 12, 17, 22, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 5, 9, 14, 20, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 4, 11, 16, 23, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21, 6, 10, 15, 21], T$2.intL());
    },
    get C1236() {
      return C[1236] = dart.constList(["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"], T$.dynamic());
    },
    get C1237() {
      return C[1237] = dart.constList(["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"], T$.dynamic());
    },
    get C1238() {
      return C[1238] = dart.constList(["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"], T$.dynamic());
    },
    get C1239() {
      return C[1239] = dart.constList(["jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec"], T$.dynamic());
    },
    get C1240() {
      return C[1240] = dart.constList(["(", ")", "<", ">", "@", ",", ";", ":", "\\", "\"", "/", "[", "]", "?", "=", "{", "}"], T$2.StringL());
    },
    get C1241() {
      return C[1241] = dart.const(Object.setPrototypeOf({
      }, _http._ToUint8List.prototype));
    },
    get C1242() {
      return C[1242] = dart.const(new _js_helper.PrivateSymbol.new('_#IOSink#encoding', __IOSink_encoding$));
    },
    get C1243() {
      return C[1243] = dart.const(new _js_helper.PrivateSymbol.new('_#IOSink#encoding=', __IOSink_encoding_));
    },
    get C1244() {
      return C[1244] = dart.const(new _js_helper.PrivateSymbol.new('_#IOSink#encoding#isSet', __IOSink_encoding_isSet$));
    },
    get C1245() {
      return C[1245] = dart.const(new _js_helper.PrivateSymbol.new('_#IOSink#encoding#isSet=', __IOSink_encoding_isSet_));
    },
    get C1246() {
      return C[1246] = dart.constList([48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70], T$2.intL());
    },
    get C1247() {
      return C[1247] = dart.constList([13, 10, 48, 13, 10, 13, 10], T$2.intL());
    },
    get C1248() {
      return C[1248] = dart.constList([48, 13, 10, 13, 10], T$2.intL());
    },
    get C1249() {
      return C[1249] = dart.fn(_http.HttpClient.findProxyFromEnvironment, T$13.Uri__ToString());
    },
    get C1252() {
      return C[1252] = dart.const(Object.setPrototypeOf({
        [_Proxy_isDirect]: true,
        [_Proxy_password]: null,
        [_Proxy_username]: null,
        [_Proxy_port]: null,
        [_Proxy_host]: null
      }, _http._Proxy.prototype));
    },
    get C1251() {
      return C[1251] = dart.constList([C[1252] || CT.C1252], T$13._ProxyL());
    },
    get C1250() {
      return C[1250] = dart.const(Object.setPrototypeOf({
        [_ProxyConfiguration_proxies]: C[1251] || CT.C1251
      }, _http._ProxyConfiguration.prototype));
    },
    get C1253() {
      return C[1253] = dart.constList(["authorization", "www-authenticate", "cookie", "cookie2"], T$2.StringL());
    },
    get C1254() {
      return C[1254] = dart.const(new _js_helper.PrivateSymbol.new('_detachRaw', _detachRaw$));
    },
    get C1255() {
      return C[1255] = dart.const(Object.setPrototypeOf({
        [_scheme$]: -1
      }, _http._AuthenticationScheme.prototype));
    },
    get C1256() {
      return C[1256] = dart.const(Object.setPrototypeOf({
        [_scheme$]: 0
      }, _http._AuthenticationScheme.prototype));
    },
    get C1257() {
      return C[1257] = dart.const(Object.setPrototypeOf({
        [_scheme$]: 1
      }, _http._AuthenticationScheme.prototype));
    },
    get C1258() {
      return C[1258] = dart.constList([72, 84, 84, 80], T$2.intL());
    },
    get C1259() {
      return C[1259] = dart.constList([72, 84, 84, 80, 47, 49, 46], T$2.intL());
    },
    get C1260() {
      return C[1260] = dart.constList([72, 84, 84, 80, 47, 49, 46, 48], T$2.intL());
    },
    get C1261() {
      return C[1261] = dart.constList([72, 84, 84, 80, 47, 49, 46, 49], T$2.intL());
    },
    get C1262() {
      return C[1262] = dart.constList([false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, true, false, false, false, false, false, true, true, false, false, true, false, false, true, false, false, false, false, false, false, false, false, false, false, true, true, true, true, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false], T.boolL());
    },
    get C1263() {
      return C[1263] = dart.const(Object.setPrototypeOf({
        [enabled$0]: true,
        [serverMaxWindowBits$]: null,
        [clientMaxWindowBits$]: null,
        [serverNoContextTakeover$]: false,
        [clientNoContextTakeover$]: false
      }, _http.CompressionOptions.prototype));
    },
    get C1264() {
      return C[1264] = dart.const(Object.setPrototypeOf({
        [enabled$0]: false,
        [serverMaxWindowBits$]: null,
        [clientMaxWindowBits$]: null,
        [serverNoContextTakeover$]: false,
        [clientNoContextTakeover$]: false
      }, _http.CompressionOptions.prototype));
    },
    get C1265() {
      return C[1265] = dart.constList([0, 0, 255, 255], T$2.intL());
    },
    get C1266() {
      return C[1266] = dart.const(Object.setPrototypeOf({
        [_duration]: 5000000
      }, core.Duration.prototype));
    }
  }, false);
  dart.InvocationImpl = class InvocationImpl extends core.Invocation {
    get memberName() {
      return this[memberName$];
    }
    set memberName(value) {
      super.memberName = value;
    }
    get positionalArguments() {
      return this[positionalArguments$];
    }
    set positionalArguments(value) {
      super.positionalArguments = value;
    }
    get namedArguments() {
      return this[namedArguments$];
    }
    set namedArguments(value) {
      super.namedArguments = value;
    }
    get typeArguments() {
      return this[typeArguments$];
    }
    set typeArguments(value) {
      super.typeArguments = value;
    }
    get isMethod() {
      return this[isMethod$];
    }
    set isMethod(value) {
      super.isMethod = value;
    }
    get isGetter() {
      return this[isGetter$];
    }
    set isGetter(value) {
      super.isGetter = value;
    }
    get isSetter() {
      return this[isSetter$];
    }
    set isSetter(value) {
      super.isSetter = value;
    }
    get failureMessage() {
      return this[failureMessage$];
    }
    set failureMessage(value) {
      super.failureMessage = value;
    }
    static ['_#new#tearOff'](memberName, positionalArguments, opts) {
      if (positionalArguments == null) dart.nullFailed(I[3], 20, 44, "positionalArguments");
      let namedArguments = opts && 'namedArguments' in opts ? opts.namedArguments : null;
      let typeArguments = opts && 'typeArguments' in opts ? opts.typeArguments : const$ || (const$ = dart.constList([], T$.dynamic()));
      if (typeArguments == null) dart.nullFailed(I[3], 22, 12, "typeArguments");
      let isMethod = opts && 'isMethod' in opts ? opts.isMethod : false;
      if (isMethod == null) dart.nullFailed(I[3], 23, 12, "isMethod");
      let isGetter = opts && 'isGetter' in opts ? opts.isGetter : false;
      if (isGetter == null) dart.nullFailed(I[3], 24, 12, "isGetter");
      let isSetter = opts && 'isSetter' in opts ? opts.isSetter : false;
      if (isSetter == null) dart.nullFailed(I[3], 25, 12, "isSetter");
      let failureMessage = opts && 'failureMessage' in opts ? opts.failureMessage : "method not found";
      if (failureMessage == null) dart.nullFailed(I[3], 26, 12, "failureMessage");
      return new dart.InvocationImpl.new(memberName, positionalArguments, {namedArguments: namedArguments, typeArguments: typeArguments, isMethod: isMethod, isGetter: isGetter, isSetter: isSetter, failureMessage: failureMessage});
    }
    static _namedArgsToSymbols(namedArgs) {
      if (namedArgs == null) return const$0 || (const$0 = dart.constMap(T$.SymbolL(), T$.dynamic(), []));
      return G.MapOfSymbol$dynamic().unmodifiable(collection.LinkedHashMap.fromIterable(dart.getOwnPropertyNames(namedArgs), {
        key: dart._dartSymbol,
        value: k => namedArgs[k]
      }));
    }
  };
  (dart.InvocationImpl.new = function(memberName, positionalArguments, opts) {
    if (positionalArguments == null) dart.nullFailed(I[3], 20, 44, "positionalArguments");
    let namedArguments = opts && 'namedArguments' in opts ? opts.namedArguments : null;
    let typeArguments = opts && 'typeArguments' in opts ? opts.typeArguments : const$ || (const$ = dart.constList([], T$.dynamic()));
    if (typeArguments == null) dart.nullFailed(I[3], 22, 12, "typeArguments");
    let isMethod = opts && 'isMethod' in opts ? opts.isMethod : false;
    if (isMethod == null) dart.nullFailed(I[3], 23, 12, "isMethod");
    let isGetter = opts && 'isGetter' in opts ? opts.isGetter : false;
    if (isGetter == null) dart.nullFailed(I[3], 24, 12, "isGetter");
    let isSetter = opts && 'isSetter' in opts ? opts.isSetter : false;
    if (isSetter == null) dart.nullFailed(I[3], 25, 12, "isSetter");
    let failureMessage = opts && 'failureMessage' in opts ? opts.failureMessage : "method not found";
    if (failureMessage == null) dart.nullFailed(I[3], 26, 12, "failureMessage");
    this[isMethod$] = isMethod;
    this[isGetter$] = isGetter;
    this[isSetter$] = isSetter;
    this[failureMessage$] = failureMessage;
    this[memberName$] = isSetter ? dart._setterSymbol(memberName) : dart._dartSymbol(memberName);
    this[positionalArguments$] = core.List.unmodifiable(positionalArguments);
    this[namedArguments$] = dart.InvocationImpl._namedArgsToSymbols(namedArguments);
    this[typeArguments$] = G.ListOfType().unmodifiable(typeArguments[$map](T$.dynamic(), t => dart_rti.createRuntimeType(t)));
    dart.global.Object.getPrototypeOf(dart.InvocationImpl).new.call(this);
    ;
  }).prototype = dart.InvocationImpl.prototype;
  dart.addRtiResources(dart.InvocationImpl, ["_runtime|InvocationImpl"]);
  dart.setStaticMethodSignature(dart.InvocationImpl, () => ['_namedArgsToSymbols']);
  dart.setLibraryUri(dart.InvocationImpl, I[12]);
  dart.setFieldSignature(dart.InvocationImpl, () => dart.global.Object.setPrototypeOf({
    memberName: {type: T$.Symbol(), isConst: false, isFinal: true, libraryUri: I[11]},
    positionalArguments: {type: T$.List(), isConst: false, isFinal: true, libraryUri: I[11]},
    namedArguments: {type: T$.MapOfSymbol$dynamic(), isConst: false, isFinal: true, libraryUri: I[11]},
    typeArguments: {type: T$.ListOfType(), isConst: false, isFinal: true, libraryUri: I[11]},
    isMethod: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    isGetter: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    isSetter: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    failureMessage: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(dart.InvocationImpl))));
  dart.RuntimeObjectKind = class RuntimeObjectKind extends core.Object {
    static ['_#new#tearOff']() {
      return new dart.RuntimeObjectKind.new();
    }
  };
  (dart.RuntimeObjectKind.new = function() {
    ;
  }).prototype = dart.RuntimeObjectKind.prototype;
  dart.addRtiResources(dart.RuntimeObjectKind, ["_runtime|RuntimeObjectKind"]);
  dart.setLibraryUri(dart.RuntimeObjectKind, I[12]);
  dart.setStaticFieldSignature(dart.RuntimeObjectKind, () => ['object', 'set', 'list', 'map', 'function', 'record', 'type', 'recordType', 'nativeError', 'nativeObject']);
  dart.defineLazy(dart.RuntimeObjectKind, {
    /*dart.RuntimeObjectKind.object*/get object() {
      return "object";
    },
    /*dart.RuntimeObjectKind.set*/get set() {
      return "set";
    },
    /*dart.RuntimeObjectKind.list*/get list() {
      return "list";
    },
    /*dart.RuntimeObjectKind.map*/get map() {
      return "map";
    },
    /*dart.RuntimeObjectKind.function*/get function() {
      return "function";
    },
    /*dart.RuntimeObjectKind.record*/get record() {
      return "record";
    },
    /*dart.RuntimeObjectKind.type*/get type() {
      return "type";
    },
    /*dart.RuntimeObjectKind.recordType*/get recordType() {
      return "recordType";
    },
    /*dart.RuntimeObjectKind.nativeError*/get nativeError() {
      return "nativeError";
    },
    /*dart.RuntimeObjectKind.nativeObject*/get nativeObject() {
      return "nativeObject";
    }
  }, false);
  var _name$ = dart.privateName(core, "_name");
  var _enumToString = dart.privateName(core, "_enumToString");
  var index$ = dart.privateName(core, "_Enum.index");
  var _name$0 = dart.privateName(core, "_Enum._name");
  core._Enum = class _Enum extends core.Object {
    get index() {
      return this[index$];
    }
    set index(value) {
      super.index = value;
    }
    get [_name$]() {
      return this[_name$0];
    }
    set [_name$](value) {
      super[_name$] = value;
    }
    toString() {
      return this[_enumToString]();
    }
  };
  (core._Enum.new = function(index, _name) {
    if (index == null) dart.nullFailed(I[16], 106, 20, "index");
    if (_name == null) dart.nullFailed(I[16], 106, 32, "_name");
    this[index$] = index;
    this[_name$0] = _name;
    ;
  }).prototype = core._Enum.prototype;
  dart.addRtiResources(core._Enum, ["core|_Enum", "core|Enum"]);
  dart.setLibraryUri(core._Enum, I[11]);
  dart.setFieldSignature(core._Enum, () => dart.global.Object.setPrototypeOf({
    index: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_name$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core._Enum))));
  dart.defineExtensionMethods(core._Enum, ['toString']);
  _js_shared_embedded_names.JsGetName = class JsGetName extends core._Enum {
    [_enumToString]() {
      return "JsGetName." + dart.str(this[_name$]);
    }
  };
  (_js_shared_embedded_names.JsGetName.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[15], 23, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[15], 23, 6, "#name");
    dart.global.Object.getPrototypeOf(_js_shared_embedded_names.JsGetName).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _js_shared_embedded_names.JsGetName.prototype;
  dart.addRtiResources(_js_shared_embedded_names.JsGetName, ["_js_shared_embedded_names|JsGetName"]);
  dart.setMethodSignature(_js_shared_embedded_names.JsGetName, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_js_shared_embedded_names.JsGetName))));
  dart.setLibraryUri(_js_shared_embedded_names.JsGetName, I[17]);
  dart.setStaticFieldSignature(_js_shared_embedded_names.JsGetName, () => ['values', 'GETTER_PREFIX', 'SETTER_PREFIX', 'CALL_PREFIX', 'CALL_PREFIX0', 'CALL_PREFIX1', 'CALL_PREFIX2', 'CALL_PREFIX3', 'CALL_PREFIX4', 'CALL_PREFIX5', 'CALL_CATCH_ALL', 'REQUIRED_PARAMETER_PROPERTY', 'DEFAULT_VALUES_PROPERTY', 'CALL_NAME_PROPERTY', 'DEFERRED_ACTION_PROPERTY', 'OPERATOR_IS_PREFIX', 'SIGNATURE_NAME', 'RTI_NAME', 'FUTURE_CLASS_TYPE_NAME', 'IS_INDEXABLE_FIELD_NAME', 'NULL_CLASS_TYPE_NAME', 'OBJECT_CLASS_TYPE_NAME', 'LIST_CLASS_TYPE_NAME', 'RTI_FIELD_AS', 'RTI_FIELD_IS', 'RECORD_SHAPE_TAG_PROPERTY', 'RECORD_SHAPE_TYPE_PROPERTY']);
  dart.defineLazy(_js_shared_embedded_names.JsGetName, {
    /*_js_shared_embedded_names.JsGetName.values*/get values() {
      return C[2] || CT.C2;
    },
    /*_js_shared_embedded_names.JsGetName.GETTER_PREFIX*/get GETTER_PREFIX() {
      return C[3] || CT.C3;
    },
    /*_js_shared_embedded_names.JsGetName.SETTER_PREFIX*/get SETTER_PREFIX() {
      return C[4] || CT.C4;
    },
    /*_js_shared_embedded_names.JsGetName.CALL_PREFIX*/get CALL_PREFIX() {
      return C[5] || CT.C5;
    },
    /*_js_shared_embedded_names.JsGetName.CALL_PREFIX0*/get CALL_PREFIX0() {
      return C[6] || CT.C6;
    },
    /*_js_shared_embedded_names.JsGetName.CALL_PREFIX1*/get CALL_PREFIX1() {
      return C[7] || CT.C7;
    },
    /*_js_shared_embedded_names.JsGetName.CALL_PREFIX2*/get CALL_PREFIX2() {
      return C[8] || CT.C8;
    },
    /*_js_shared_embedded_names.JsGetName.CALL_PREFIX3*/get CALL_PREFIX3() {
      return C[9] || CT.C9;
    },
    /*_js_shared_embedded_names.JsGetName.CALL_PREFIX4*/get CALL_PREFIX4() {
      return C[10] || CT.C10;
    },
    /*_js_shared_embedded_names.JsGetName.CALL_PREFIX5*/get CALL_PREFIX5() {
      return C[11] || CT.C11;
    },
    /*_js_shared_embedded_names.JsGetName.CALL_CATCH_ALL*/get CALL_CATCH_ALL() {
      return C[12] || CT.C12;
    },
    /*_js_shared_embedded_names.JsGetName.REQUIRED_PARAMETER_PROPERTY*/get REQUIRED_PARAMETER_PROPERTY() {
      return C[13] || CT.C13;
    },
    /*_js_shared_embedded_names.JsGetName.DEFAULT_VALUES_PROPERTY*/get DEFAULT_VALUES_PROPERTY() {
      return C[14] || CT.C14;
    },
    /*_js_shared_embedded_names.JsGetName.CALL_NAME_PROPERTY*/get CALL_NAME_PROPERTY() {
      return C[15] || CT.C15;
    },
    /*_js_shared_embedded_names.JsGetName.DEFERRED_ACTION_PROPERTY*/get DEFERRED_ACTION_PROPERTY() {
      return C[16] || CT.C16;
    },
    /*_js_shared_embedded_names.JsGetName.OPERATOR_IS_PREFIX*/get OPERATOR_IS_PREFIX() {
      return C[17] || CT.C17;
    },
    /*_js_shared_embedded_names.JsGetName.SIGNATURE_NAME*/get SIGNATURE_NAME() {
      return C[18] || CT.C18;
    },
    /*_js_shared_embedded_names.JsGetName.RTI_NAME*/get RTI_NAME() {
      return C[19] || CT.C19;
    },
    /*_js_shared_embedded_names.JsGetName.FUTURE_CLASS_TYPE_NAME*/get FUTURE_CLASS_TYPE_NAME() {
      return C[20] || CT.C20;
    },
    /*_js_shared_embedded_names.JsGetName.IS_INDEXABLE_FIELD_NAME*/get IS_INDEXABLE_FIELD_NAME() {
      return C[21] || CT.C21;
    },
    /*_js_shared_embedded_names.JsGetName.NULL_CLASS_TYPE_NAME*/get NULL_CLASS_TYPE_NAME() {
      return C[22] || CT.C22;
    },
    /*_js_shared_embedded_names.JsGetName.OBJECT_CLASS_TYPE_NAME*/get OBJECT_CLASS_TYPE_NAME() {
      return C[23] || CT.C23;
    },
    /*_js_shared_embedded_names.JsGetName.LIST_CLASS_TYPE_NAME*/get LIST_CLASS_TYPE_NAME() {
      return C[24] || CT.C24;
    },
    /*_js_shared_embedded_names.JsGetName.RTI_FIELD_AS*/get RTI_FIELD_AS() {
      return C[25] || CT.C25;
    },
    /*_js_shared_embedded_names.JsGetName.RTI_FIELD_IS*/get RTI_FIELD_IS() {
      return C[26] || CT.C26;
    },
    /*_js_shared_embedded_names.JsGetName.RECORD_SHAPE_TAG_PROPERTY*/get RECORD_SHAPE_TAG_PROPERTY() {
      return C[27] || CT.C27;
    },
    /*_js_shared_embedded_names.JsGetName.RECORD_SHAPE_TYPE_PROPERTY*/get RECORD_SHAPE_TYPE_PROPERTY() {
      return C[28] || CT.C28;
    }
  }, false);
  _js_shared_embedded_names.JsBuiltin = class JsBuiltin extends core._Enum {
    [_enumToString]() {
      return "JsBuiltin." + dart.str(this[_name$]);
    }
  };
  (_js_shared_embedded_names.JsBuiltin.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[15], 78, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[15], 78, 6, "#name");
    dart.global.Object.getPrototypeOf(_js_shared_embedded_names.JsBuiltin).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _js_shared_embedded_names.JsBuiltin.prototype;
  dart.addRtiResources(_js_shared_embedded_names.JsBuiltin, ["_js_shared_embedded_names|JsBuiltin"]);
  dart.setMethodSignature(_js_shared_embedded_names.JsBuiltin, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_js_shared_embedded_names.JsBuiltin))));
  dart.setLibraryUri(_js_shared_embedded_names.JsBuiltin, I[17]);
  dart.setStaticFieldSignature(_js_shared_embedded_names.JsBuiltin, () => ['values', 'dartObjectConstructor', 'dartClosureConstructor', 'isJsInteropTypeArgument', 'getMetadata', 'getType']);
  dart.defineLazy(_js_shared_embedded_names.JsBuiltin, {
    /*_js_shared_embedded_names.JsBuiltin.values*/get values() {
      return C[29] || CT.C29;
    },
    /*_js_shared_embedded_names.JsBuiltin.dartObjectConstructor*/get dartObjectConstructor() {
      return C[30] || CT.C30;
    },
    /*_js_shared_embedded_names.JsBuiltin.dartClosureConstructor*/get dartClosureConstructor() {
      return C[31] || CT.C31;
    },
    /*_js_shared_embedded_names.JsBuiltin.isJsInteropTypeArgument*/get isJsInteropTypeArgument() {
      return C[32] || CT.C32;
    },
    /*_js_shared_embedded_names.JsBuiltin.getMetadata*/get getMetadata() {
      return C[33] || CT.C33;
    },
    /*_js_shared_embedded_names.JsBuiltin.getType*/get getType() {
      return C[34] || CT.C34;
    }
  }, false);
  _js_shared_embedded_names.RtiUniverseFieldNames = class RtiUniverseFieldNames extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_shared_embedded_names.RtiUniverseFieldNames.new();
    }
  };
  (_js_shared_embedded_names.RtiUniverseFieldNames.new = function() {
    ;
  }).prototype = _js_shared_embedded_names.RtiUniverseFieldNames.prototype;
  dart.addRtiResources(_js_shared_embedded_names.RtiUniverseFieldNames, ["_js_shared_embedded_names|RtiUniverseFieldNames"]);
  dart.setLibraryUri(_js_shared_embedded_names.RtiUniverseFieldNames, I[17]);
  dart.setStaticFieldSignature(_js_shared_embedded_names.RtiUniverseFieldNames, () => ['evalCache', 'typeRules', 'erasedTypes', 'typeParameterVariances', 'sharedEmptyArray']);
  dart.defineLazy(_js_shared_embedded_names.RtiUniverseFieldNames, {
    /*_js_shared_embedded_names.RtiUniverseFieldNames.evalCache*/get evalCache() {
      return "eC";
    },
    /*_js_shared_embedded_names.RtiUniverseFieldNames.typeRules*/get typeRules() {
      return "tR";
    },
    /*_js_shared_embedded_names.RtiUniverseFieldNames.erasedTypes*/get erasedTypes() {
      return "eT";
    },
    /*_js_shared_embedded_names.RtiUniverseFieldNames.typeParameterVariances*/get typeParameterVariances() {
      return "tPV";
    },
    /*_js_shared_embedded_names.RtiUniverseFieldNames.sharedEmptyArray*/get sharedEmptyArray() {
      return "sEA";
    }
  }, false);
  dart.defineLazy(_js_shared_embedded_names, {
    /*_js_shared_embedded_names.RTI_UNIVERSE*/get RTI_UNIVERSE() {
      return "typeUniverse";
    },
    /*_js_shared_embedded_names.ARRAY_RTI_PROPERTY*/get ARRAY_RTI_PROPERTY() {
      return "arrayRti";
    },
    /*_js_shared_embedded_names.TYPES*/get TYPES() {
      return "types";
    }
  }, false);
  _recipe_syntax.Recipe = class Recipe extends core.Object {
    static isDigit(code) {
      if (code == null) dart.nullFailed(I[18], 78, 27, "code");
      return dart.notNull(code) >= 48 && dart.notNull(code) <= 57;
    }
    static digitValue(code) {
      if (code == null) dart.nullFailed(I[18], 79, 29, "code");
      return dart.notNull(code) - 48;
    }
    static isIdentifierStart(ch) {
      if (ch == null) dart.nullFailed(I[18], 81, 37, "ch");
      return (((dart.notNull(ch) | 32) >>> 0) - 97 & 65535) < 26 || ch === 95 || ch === 36 || ch === 124;
    }
    static testEquivalence() {
      function test(label, charCode, str) {
        if (label == null) dart.nullFailed(I[18], 175, 22, "label");
        if (charCode == null) dart.nullFailed(I[18], 175, 33, "charCode");
        if (str == null) dart.nullFailed(I[18], 175, 50, "str");
        if (core.String.fromCharCode(charCode) != str) {
          dart.throw(new core.StateError.new(dart.str(label) + ": String.fromCharCode(" + dart.str(charCode) + ") != " + dart.str(str)));
        }
      }
      dart.fn(test, T$.StringAndintAndStringTovoid());
      function testExtension(label, op, str) {
        if (label == null) dart.nullFailed(I[18], 181, 31, "label");
        if (op == null) dart.nullFailed(I[18], 181, 42, "op");
        if (str == null) dart.nullFailed(I[18], 181, 53, "str");
        if (dart.str(op) !== str) {
          dart.throw(new core.StateError.new(dart.str(label) + ": " + dart.str(op) + ".toString() != " + dart.str(str)));
        }
      }
      dart.fn(testExtension, T$.StringAndintAndStringTovoid());
      test("separator", 44, ",");
      test("toType", 59, ";");
      test("pushErased", 35, "#");
      test("pushDynamic", 64, "@");
      test("pushVoid", 126, "~");
      test("wrapStar", 42, "*");
      test("wrapQuestion", 63, "?");
      test("wrapFutureOr", 47, "/");
      test("startTypeArguments", 60, "<");
      test("endTypeArguments", 62, ">");
      test("startFunctionArguments", 40, "(");
      test("endFunctionArguments", 41, ")");
      test("startOptionalGroup", 91, "[");
      test("endOptionalGroup", 93, "]");
      test("startNamedGroup", 123, "{");
      test("endNamedGroup", 125, "}");
      test("nameSeparator", 58, ":");
      test("requiredNameSeparator", 33, "!");
      test("genericFunctionTypeParameterIndex", 94, "^");
      test("startRecord", 43, "+");
      test("extensionOp", 38, "&");
      testExtension("pushNeverExtension", 0, "0");
      testExtension("pushAnyExtension", 1, "1");
      test("_formfeed", 12, "\f");
      test("_space", 32, " ");
      test("_exclamation", 33, "!");
      test("_hash", 35, "#");
      test("_dollar", 36, "$");
      test("_percent", 37, "%");
      test("_ampersand", 38, "&");
      test("_apostrophe", 39, "'");
      test("_leftParen", 40, "(");
      test("_rightParen", 41, ")");
      test("_asterisk", 42, "*");
      test("_plus", 43, "+");
      test("_comma", 44, ",");
      test("_minus", 45, "-");
      test("_period", 46, ".");
      test("_slash", 47, "/");
      test("_colon", 58, ":");
      test("_semicolon", 59, ";");
      test("_lessThan", 60, "<");
      test("_equals", 61, "=");
      test("_greaterThan", 62, ">");
      test("_question", 63, "?");
      test("_at", 64, "@");
      test("_leftBracket", 91, "[");
      test("_backslash", 92, "\\");
      test("_rightBracket", 93, "]");
      test("_circumflex", 94, "^");
      test("_underscore", 95, "_");
      test("_backtick", 96, "`");
      test("_leftBrace", 123, "{");
      test("_vertical", 124, "|");
      test("_rightBrace", 125, "}");
      test("_tilde", 126, "~");
    }
  };
  (_recipe_syntax.Recipe.__ = function() {
    ;
  }).prototype = _recipe_syntax.Recipe.prototype;
  dart.addRtiResources(_recipe_syntax.Recipe, ["_recipe_syntax|Recipe"]);
  dart.setStaticMethodSignature(_recipe_syntax.Recipe, () => ['isDigit', 'digitValue', 'isIdentifierStart', 'testEquivalence']);
  dart.setLibraryUri(_recipe_syntax.Recipe, I[19]);
  dart.setStaticFieldSignature(_recipe_syntax.Recipe, () => ['librarySeparator', 'librarySeparatorString', 'separator', 'separatorString', 'toType', 'toTypeString', 'pushErased', 'pushErasedString', 'pushDynamic', 'pushDynamicString', 'pushVoid', 'pushVoidString', 'wrapStar', 'wrapStarString', 'wrapQuestion', 'wrapQuestionString', 'wrapFutureOr', 'wrapFutureOrString', 'startTypeArguments', 'startTypeArgumentsString', 'endTypeArguments', 'endTypeArgumentsString', 'startFunctionArguments', 'startFunctionArgumentsString', 'endFunctionArguments', 'endFunctionArgumentsString', 'startOptionalGroup', 'startOptionalGroupString', 'endOptionalGroup', 'endOptionalGroupString', 'startNamedGroup', 'startNamedGroupString', 'endNamedGroup', 'endNamedGroupString', 'nameSeparator', 'nameSeparatorString', 'requiredNameSeparator', 'requiredNameSeparatorString', 'genericFunctionTypeParameterIndex', 'genericFunctionTypeParameterIndexString', 'startRecord', 'startRecordString', 'extensionOp', 'extensionOpString', 'pushNeverExtension', 'pushNeverExtensionString', 'pushAnyExtension', 'pushAnyExtensionString', 'period', '_formfeed', '_formfeedString', '_space', '_spaceString', '_exclamation', '_exclamationString', '_hash', '_hashString', '_dollar', '_dollarString', '_percent', '_percentString', '_ampersand', '_ampersandString', '_apostrophe', '_apostropheString', '_leftParen', '_leftParenString', '_rightParen', '_rightParenString', '_asterisk', '_asteriskString', '_plus', '_plusString', '_comma', '_commaString', '_minus', '_minusString', '_period', '_periodString', '_slash', '_slashString', '_digit0', '_digit9', '_colon', '_colonString', '_semicolon', '_semicolonString', '_lessThan', '_lessThanString', '_equals', '_equalsString', '_greaterThan', '_greaterThanString', '_question', '_questionString', '_at', '_atString', '_uppercaseA', '_uppercaseZ', '_leftBracket', '_leftBracketString', '_backslash', '_backslashString', '_rightBracket', '_rightBracketString', '_circumflex', '_circumflexString', '_underscore', '_underscoreString', '_backtick', '_backtickString', '_lowercaseA', '_lowercaseZ', '_leftBrace', '_leftBraceString', '_vertical', '_verticalString', '_rightBrace', '_rightBraceString', '_tilde', '_tildeString']);
  dart.defineLazy(_recipe_syntax.Recipe, {
    /*_recipe_syntax.Recipe.librarySeparator*/get librarySeparator() {
      return 124;
    },
    /*_recipe_syntax.Recipe.librarySeparatorString*/get librarySeparatorString() {
      return "|";
    },
    /*_recipe_syntax.Recipe.separator*/get separator() {
      return 44;
    },
    /*_recipe_syntax.Recipe.separatorString*/get separatorString() {
      return ",";
    },
    /*_recipe_syntax.Recipe.toType*/get toType() {
      return 59;
    },
    /*_recipe_syntax.Recipe.toTypeString*/get toTypeString() {
      return ";";
    },
    /*_recipe_syntax.Recipe.pushErased*/get pushErased() {
      return 35;
    },
    /*_recipe_syntax.Recipe.pushErasedString*/get pushErasedString() {
      return "#";
    },
    /*_recipe_syntax.Recipe.pushDynamic*/get pushDynamic() {
      return 64;
    },
    /*_recipe_syntax.Recipe.pushDynamicString*/get pushDynamicString() {
      return "@";
    },
    /*_recipe_syntax.Recipe.pushVoid*/get pushVoid() {
      return 126;
    },
    /*_recipe_syntax.Recipe.pushVoidString*/get pushVoidString() {
      return "~";
    },
    /*_recipe_syntax.Recipe.wrapStar*/get wrapStar() {
      return 42;
    },
    /*_recipe_syntax.Recipe.wrapStarString*/get wrapStarString() {
      return "*";
    },
    /*_recipe_syntax.Recipe.wrapQuestion*/get wrapQuestion() {
      return 63;
    },
    /*_recipe_syntax.Recipe.wrapQuestionString*/get wrapQuestionString() {
      return "?";
    },
    /*_recipe_syntax.Recipe.wrapFutureOr*/get wrapFutureOr() {
      return 47;
    },
    /*_recipe_syntax.Recipe.wrapFutureOrString*/get wrapFutureOrString() {
      return "/";
    },
    /*_recipe_syntax.Recipe.startTypeArguments*/get startTypeArguments() {
      return 60;
    },
    /*_recipe_syntax.Recipe.startTypeArgumentsString*/get startTypeArgumentsString() {
      return "<";
    },
    /*_recipe_syntax.Recipe.endTypeArguments*/get endTypeArguments() {
      return 62;
    },
    /*_recipe_syntax.Recipe.endTypeArgumentsString*/get endTypeArgumentsString() {
      return ">";
    },
    /*_recipe_syntax.Recipe.startFunctionArguments*/get startFunctionArguments() {
      return 40;
    },
    /*_recipe_syntax.Recipe.startFunctionArgumentsString*/get startFunctionArgumentsString() {
      return "(";
    },
    /*_recipe_syntax.Recipe.endFunctionArguments*/get endFunctionArguments() {
      return 41;
    },
    /*_recipe_syntax.Recipe.endFunctionArgumentsString*/get endFunctionArgumentsString() {
      return ")";
    },
    /*_recipe_syntax.Recipe.startOptionalGroup*/get startOptionalGroup() {
      return 91;
    },
    /*_recipe_syntax.Recipe.startOptionalGroupString*/get startOptionalGroupString() {
      return "[";
    },
    /*_recipe_syntax.Recipe.endOptionalGroup*/get endOptionalGroup() {
      return 93;
    },
    /*_recipe_syntax.Recipe.endOptionalGroupString*/get endOptionalGroupString() {
      return "]";
    },
    /*_recipe_syntax.Recipe.startNamedGroup*/get startNamedGroup() {
      return 123;
    },
    /*_recipe_syntax.Recipe.startNamedGroupString*/get startNamedGroupString() {
      return "{";
    },
    /*_recipe_syntax.Recipe.endNamedGroup*/get endNamedGroup() {
      return 125;
    },
    /*_recipe_syntax.Recipe.endNamedGroupString*/get endNamedGroupString() {
      return "}";
    },
    /*_recipe_syntax.Recipe.nameSeparator*/get nameSeparator() {
      return 58;
    },
    /*_recipe_syntax.Recipe.nameSeparatorString*/get nameSeparatorString() {
      return ":";
    },
    /*_recipe_syntax.Recipe.requiredNameSeparator*/get requiredNameSeparator() {
      return 33;
    },
    /*_recipe_syntax.Recipe.requiredNameSeparatorString*/get requiredNameSeparatorString() {
      return "!";
    },
    /*_recipe_syntax.Recipe.genericFunctionTypeParameterIndex*/get genericFunctionTypeParameterIndex() {
      return 94;
    },
    /*_recipe_syntax.Recipe.genericFunctionTypeParameterIndexString*/get genericFunctionTypeParameterIndexString() {
      return "^";
    },
    /*_recipe_syntax.Recipe.startRecord*/get startRecord() {
      return 43;
    },
    /*_recipe_syntax.Recipe.startRecordString*/get startRecordString() {
      return "+";
    },
    /*_recipe_syntax.Recipe.extensionOp*/get extensionOp() {
      return 38;
    },
    /*_recipe_syntax.Recipe.extensionOpString*/get extensionOpString() {
      return "&";
    },
    /*_recipe_syntax.Recipe.pushNeverExtension*/get pushNeverExtension() {
      return 0;
    },
    /*_recipe_syntax.Recipe.pushNeverExtensionString*/get pushNeverExtensionString() {
      return "0";
    },
    /*_recipe_syntax.Recipe.pushAnyExtension*/get pushAnyExtension() {
      return 1;
    },
    /*_recipe_syntax.Recipe.pushAnyExtensionString*/get pushAnyExtensionString() {
      return "1";
    },
    /*_recipe_syntax.Recipe.period*/get period() {
      return 46;
    },
    /*_recipe_syntax.Recipe._formfeed*/get _formfeed() {
      return 12;
    },
    /*_recipe_syntax.Recipe._formfeedString*/get _formfeedString() {
      return "\f";
    },
    /*_recipe_syntax.Recipe._space*/get _space() {
      return 32;
    },
    /*_recipe_syntax.Recipe._spaceString*/get _spaceString() {
      return " ";
    },
    /*_recipe_syntax.Recipe._exclamation*/get _exclamation() {
      return 33;
    },
    /*_recipe_syntax.Recipe._exclamationString*/get _exclamationString() {
      return "!";
    },
    /*_recipe_syntax.Recipe._hash*/get _hash() {
      return 35;
    },
    /*_recipe_syntax.Recipe._hashString*/get _hashString() {
      return "#";
    },
    /*_recipe_syntax.Recipe._dollar*/get _dollar() {
      return 36;
    },
    /*_recipe_syntax.Recipe._dollarString*/get _dollarString() {
      return "$";
    },
    /*_recipe_syntax.Recipe._percent*/get _percent() {
      return 37;
    },
    /*_recipe_syntax.Recipe._percentString*/get _percentString() {
      return "%";
    },
    /*_recipe_syntax.Recipe._ampersand*/get _ampersand() {
      return 38;
    },
    /*_recipe_syntax.Recipe._ampersandString*/get _ampersandString() {
      return "&";
    },
    /*_recipe_syntax.Recipe._apostrophe*/get _apostrophe() {
      return 39;
    },
    /*_recipe_syntax.Recipe._apostropheString*/get _apostropheString() {
      return "'";
    },
    /*_recipe_syntax.Recipe._leftParen*/get _leftParen() {
      return 40;
    },
    /*_recipe_syntax.Recipe._leftParenString*/get _leftParenString() {
      return "(";
    },
    /*_recipe_syntax.Recipe._rightParen*/get _rightParen() {
      return 41;
    },
    /*_recipe_syntax.Recipe._rightParenString*/get _rightParenString() {
      return ")";
    },
    /*_recipe_syntax.Recipe._asterisk*/get _asterisk() {
      return 42;
    },
    /*_recipe_syntax.Recipe._asteriskString*/get _asteriskString() {
      return "*";
    },
    /*_recipe_syntax.Recipe._plus*/get _plus() {
      return 43;
    },
    /*_recipe_syntax.Recipe._plusString*/get _plusString() {
      return "+";
    },
    /*_recipe_syntax.Recipe._comma*/get _comma() {
      return 44;
    },
    /*_recipe_syntax.Recipe._commaString*/get _commaString() {
      return ",";
    },
    /*_recipe_syntax.Recipe._minus*/get _minus() {
      return 45;
    },
    /*_recipe_syntax.Recipe._minusString*/get _minusString() {
      return "-";
    },
    /*_recipe_syntax.Recipe._period*/get _period() {
      return 46;
    },
    /*_recipe_syntax.Recipe._periodString*/get _periodString() {
      return ".";
    },
    /*_recipe_syntax.Recipe._slash*/get _slash() {
      return 47;
    },
    /*_recipe_syntax.Recipe._slashString*/get _slashString() {
      return "/";
    },
    /*_recipe_syntax.Recipe._digit0*/get _digit0() {
      return 48;
    },
    /*_recipe_syntax.Recipe._digit9*/get _digit9() {
      return 57;
    },
    /*_recipe_syntax.Recipe._colon*/get _colon() {
      return 58;
    },
    /*_recipe_syntax.Recipe._colonString*/get _colonString() {
      return ":";
    },
    /*_recipe_syntax.Recipe._semicolon*/get _semicolon() {
      return 59;
    },
    /*_recipe_syntax.Recipe._semicolonString*/get _semicolonString() {
      return ";";
    },
    /*_recipe_syntax.Recipe._lessThan*/get _lessThan() {
      return 60;
    },
    /*_recipe_syntax.Recipe._lessThanString*/get _lessThanString() {
      return "<";
    },
    /*_recipe_syntax.Recipe._equals*/get _equals() {
      return 61;
    },
    /*_recipe_syntax.Recipe._equalsString*/get _equalsString() {
      return "=";
    },
    /*_recipe_syntax.Recipe._greaterThan*/get _greaterThan() {
      return 62;
    },
    /*_recipe_syntax.Recipe._greaterThanString*/get _greaterThanString() {
      return ">";
    },
    /*_recipe_syntax.Recipe._question*/get _question() {
      return 63;
    },
    /*_recipe_syntax.Recipe._questionString*/get _questionString() {
      return "?";
    },
    /*_recipe_syntax.Recipe._at*/get _at() {
      return 64;
    },
    /*_recipe_syntax.Recipe._atString*/get _atString() {
      return "@";
    },
    /*_recipe_syntax.Recipe._uppercaseA*/get _uppercaseA() {
      return 65;
    },
    /*_recipe_syntax.Recipe._uppercaseZ*/get _uppercaseZ() {
      return 90;
    },
    /*_recipe_syntax.Recipe._leftBracket*/get _leftBracket() {
      return 91;
    },
    /*_recipe_syntax.Recipe._leftBracketString*/get _leftBracketString() {
      return "[";
    },
    /*_recipe_syntax.Recipe._backslash*/get _backslash() {
      return 92;
    },
    /*_recipe_syntax.Recipe._backslashString*/get _backslashString() {
      return "\\";
    },
    /*_recipe_syntax.Recipe._rightBracket*/get _rightBracket() {
      return 93;
    },
    /*_recipe_syntax.Recipe._rightBracketString*/get _rightBracketString() {
      return "]";
    },
    /*_recipe_syntax.Recipe._circumflex*/get _circumflex() {
      return 94;
    },
    /*_recipe_syntax.Recipe._circumflexString*/get _circumflexString() {
      return "^";
    },
    /*_recipe_syntax.Recipe._underscore*/get _underscore() {
      return 95;
    },
    /*_recipe_syntax.Recipe._underscoreString*/get _underscoreString() {
      return "_";
    },
    /*_recipe_syntax.Recipe._backtick*/get _backtick() {
      return 96;
    },
    /*_recipe_syntax.Recipe._backtickString*/get _backtickString() {
      return "`";
    },
    /*_recipe_syntax.Recipe._lowercaseA*/get _lowercaseA() {
      return 97;
    },
    /*_recipe_syntax.Recipe._lowercaseZ*/get _lowercaseZ() {
      return 122;
    },
    /*_recipe_syntax.Recipe._leftBrace*/get _leftBrace() {
      return 123;
    },
    /*_recipe_syntax.Recipe._leftBraceString*/get _leftBraceString() {
      return "{";
    },
    /*_recipe_syntax.Recipe._vertical*/get _vertical() {
      return 124;
    },
    /*_recipe_syntax.Recipe._verticalString*/get _verticalString() {
      return "|";
    },
    /*_recipe_syntax.Recipe._rightBrace*/get _rightBrace() {
      return 125;
    },
    /*_recipe_syntax.Recipe._rightBraceString*/get _rightBraceString() {
      return "}";
    },
    /*_recipe_syntax.Recipe._tilde*/get _tilde() {
      return 126;
    },
    /*_recipe_syntax.Recipe._tildeString*/get _tildeString() {
      return "~";
    }
  }, false);
  var _message$ = dart.privateName(dart_rti, "_message");
  dart_rti._Error = class _Error extends core.Error {
    static ['_#new#tearOff'](_message) {
      return new dart_rti._Error.new(_message);
    }
    static compose(object, checkedTypeDescription) {
      let objectDescription = core.Error.safeToString(object);
      let objectRti = dart_rti._structuralTypeOf(object);
      let objectTypeDescription = dart_rti._rtiToString(objectRti, null);
      return objectDescription + ":" + " type '" + objectTypeDescription + "'" + " is not a subtype of type '" + checkedTypeDescription + "'";
    }
    toString() {
      return this[_message$];
    }
  };
  (dart_rti._Error.new = function(_message) {
    this[_message$] = _message;
    dart.global.Object.getPrototypeOf(dart_rti._Error).new.call(this);
    ;
  }).prototype = dart_rti._Error.prototype;
  dart.addRtiResources(dart_rti._Error, ["_rti|_Error"]);
  dart.setStaticMethodSignature(dart_rti._Error, () => ['compose']);
  dart.setLibraryUri(dart_rti._Error, I[20]);
  dart.setFieldSignature(dart_rti._Error, () => dart.global.Object.setPrototypeOf({[_message$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(dart_rti._Error))));
  dart.defineExtensionMethods(dart_rti._Error, ['toString']);
  dart_rti._InteropNullAssertionError = class _InteropNullAssertionError extends dart_rti._Error {
    static ['_#new#tearOff']() {
      return new dart_rti._InteropNullAssertionError.new();
    }
  };
  (dart_rti._InteropNullAssertionError.new = function() {
    dart.global.Object.getPrototypeOf(dart_rti._InteropNullAssertionError).new.call(this, "Non-nullable interop API returned null value.");
    ;
  }).prototype = dart_rti._InteropNullAssertionError.prototype;
  dart.addRtiResources(dart_rti._InteropNullAssertionError, ["_rti|_InteropNullAssertionError", "core|TypeError", "core|Error"]);
  dart.setLibraryUri(dart_rti._InteropNullAssertionError, I[20]);
  var _precomputed1 = dart.privateName(dart_rti, "_precomputed1");
  var _isSubtypeCache = dart.privateName(dart_rti, "_isSubtypeCache");
  var _dynamicCheckData = dart.privateName(dart_rti, "_dynamicCheckData");
  var _specializedTestResource = dart.privateName(dart_rti, "_specializedTestResource");
  var _cachedRuntimeType = dart.privateName(dart_rti, "_cachedRuntimeType");
  var _kind = dart.privateName(dart_rti, "_kind");
  var _primary = dart.privateName(dart_rti, "_primary");
  var _rest = dart.privateName(dart_rti, "_rest");
  var _evalCache = dart.privateName(dart_rti, "_evalCache");
  var _bindCache = dart.privateName(dart_rti, "_bindCache");
  var _canonicalRecipe = dart.privateName(dart_rti, "_canonicalRecipe");
  var _eval = dart.privateName(dart_rti, "_eval");
  var _bind = dart.privateName(dart_rti, "_bind");
  var _bind1 = dart.privateName(dart_rti, "_bind1");
  dart_rti.Rti = class Rti extends core.Object {
    static _setAsCheckFunction(rti, fn) {
      rti[_as] = fn;
    }
    static _setIsTestFunction(rti, fn) {
      rti[_is] = fn;
    }
    static _asCheck(rti, object) {
      return rti[_as](object);
    }
    static _isCheck(rti, object) {
      return rti[_is](object);
    }
    [_eval](recipe) {
      return dart_rti._Universe.evalInEnvironment(dart.typeUniverse, this, recipe);
    }
    [_bind](typeOrTuple) {
      return dart_rti._Universe.bind(dart.typeUniverse, this, typeOrTuple);
    }
    [_bind1](typeOrTuple) {
      return dart_rti._Universe.bind1(dart.typeUniverse, this, typeOrTuple);
    }
    static _getPrecomputed1(rti) {
      return rti[_precomputed1];
    }
    static _setPrecomputed1(rti, precomputed) {
      rti[_precomputed1] = precomputed;
    }
    static _unstar(rti) {
      return dart_rti.Rti._getKind(rti) === 6 ? dart_rti.Rti._getStarArgument(rti) : rti;
    }
    static _getQuestionFromStar(universe, rti) {
      if (!(dart_rti.Rti._getKind(rti) === 6)) dart.assertFailed(null, I[21], 174, 12, "_getKind(rti) == kindStar");
      let question = dart_rti.Rti._getPrecomputed1(rti);
      if (question == null) {
        question = dart_rti._Universe._lookupQuestionRti(universe, dart_rti.Rti._getStarArgument(rti), true);
        dart_rti.Rti._setPrecomputed1(rti, question);
      }
      return question;
    }
    static _getFutureFromFutureOr(universe, rti) {
      if (!(dart_rti.Rti._getKind(rti) === 8)) dart.assertFailed(null, I[21], 185, 12, "_getKind(rti) == kindFutureOr");
      let future = dart_rti.Rti._getPrecomputed1(rti);
      if (future == null) {
        future = dart_rti._Universe._lookupInterfaceRti(universe, "async|Future", [dart_rti.Rti._getFutureOrArgument(rti)]);
        dart_rti.Rti._setPrecomputed1(rti, future);
      }
      return future;
    }
    static _getIsSubtypeCache(rti) {
      let t$3613, t$3612;
      t$3612 = rti;
      t$3613 = t$3612[_isSubtypeCache];
      return t$3613 == null ? t$3612[_isSubtypeCache] = new Map() : t$3613;
    }
    static _getDynamicCheckData(rti) {
      return rti[_dynamicCheckData];
    }
    static _setDynamicCheckData(rti, data) {
      rti[_dynamicCheckData] = data;
    }
    static _getSpecializedTestResource(rti) {
      return rti[_specializedTestResource];
    }
    static _setSpecializedTestResource(rti, value) {
      rti[_specializedTestResource] = value;
    }
    static _getCachedRuntimeType(rti) {
      return rti[_cachedRuntimeType];
    }
    static _setCachedRuntimeType(rti, type) {
      rti[_cachedRuntimeType] = type;
    }
    static _getKind(rti) {
      return rti[_kind];
    }
    static _setKind(rti, kind) {
      rti[_kind] = kind;
    }
    static _isUnionOfFunctionType(rti) {
      let kind = dart_rti.Rti._getKind(rti);
      if (kind === 6 || kind === 7 || kind === 8) {
        return dart_rti.Rti._isUnionOfFunctionType(dart_rti.Rti._getPrimary(rti));
      }
      return kind === 12 || kind === 13;
    }
    static _getPrimary(rti) {
      return rti[_primary];
    }
    static _setPrimary(rti, value) {
      rti[_primary] = value;
    }
    static _getRest(rti) {
      return rti[_rest];
    }
    static _setRest(rti, value) {
      rti[_rest] = value;
    }
    static _getInterfaceName(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 9)) dart.assertFailed(null, I[21], 305, 12, "_getKind(rti) == kindInterface");
      return dart_rti.Rti._getPrimary(rti);
    }
    static _getInterfaceTypeArguments(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 9)) dart.assertFailed(null, I[21], 312, 12, "_getKind(rti) == kindInterface");
      return dart_rti.Rti._getRest(rti);
    }
    static _getBindingBase(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 10)) dart.assertFailed(null, I[21], 317, 12, "_getKind(rti) == kindBinding");
      return dart_rti.Rti._getPrimary(rti);
    }
    static _getBindingArguments(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 10)) dart.assertFailed(null, I[21], 322, 12, "_getKind(rti) == kindBinding");
      return dart_rti.Rti._getRest(rti);
    }
    static _getRecordPartialShapeTag(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 11)) dart.assertFailed(null, I[21], 327, 12, "_getKind(rti) == kindRecord");
      return dart_rti.Rti._getPrimary(rti);
    }
    static _getRecordFields(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 11)) dart.assertFailed(null, I[21], 332, 12, "_getKind(rti) == kindRecord");
      return dart_rti.Rti._getRest(rti);
    }
    static _getStarArgument(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 6)) dart.assertFailed(null, I[21], 337, 12, "_getKind(rti) == kindStar");
      return dart_rti.Rti._getPrimary(rti);
    }
    static _getQuestionArgument(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 7)) dart.assertFailed(null, I[21], 342, 12, "_getKind(rti) == kindQuestion");
      return dart_rti.Rti._getPrimary(rti);
    }
    static _getFutureOrArgument(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 8)) dart.assertFailed(null, I[21], 347, 12, "_getKind(rti) == kindFutureOr");
      return dart_rti.Rti._getPrimary(rti);
    }
    static _getReturnType(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 12)) dart.assertFailed(null, I[21], 352, 12, "_getKind(rti) == kindFunction");
      return dart_rti.Rti._getPrimary(rti);
    }
    static _getFunctionParameters(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 12)) dart.assertFailed(null, I[21], 357, 12, "_getKind(rti) == kindFunction");
      return dart_rti.Rti._getRest(rti);
    }
    static _getGenericFunctionBase(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 13)) dart.assertFailed(null, I[21], 362, 12, "_getKind(rti) == kindGenericFunction");
      return dart_rti.Rti._getPrimary(rti);
    }
    static _getGenericFunctionBounds(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 13)) dart.assertFailed(null, I[21], 367, 12, "_getKind(rti) == kindGenericFunction");
      return dart_rti.Rti._getRest(rti);
    }
    static _getGenericFunctionParameterIndex(rti) {
      if (!(dart_rti.Rti._getKind(rti) === 14)) dart.assertFailed(null, I[21], 372, 12, "_getKind(rti) == kindGenericFunctionParameter");
      return dart_rti.Rti._getPrimary(rti);
    }
    static _getEvalCache(rti) {
      return rti[_evalCache];
    }
    static _setEvalCache(rti, value) {
      rti[_evalCache] = value;
    }
    static _getBindCache(rti) {
      return rti[_bindCache];
    }
    static _setBindCache(rti, value) {
      rti[_bindCache] = value;
    }
    static allocate() {
      return new dart_rti.Rti.new();
    }
    static _getCanonicalRecipe(rti) {
      let s = rti[_canonicalRecipe];
      if (!(typeof s == "string")) dart.assertFailed("Missing canonical recipe", I[21], 420, 12, "_Utils.isString(s)");
      return s;
    }
    static _setCanonicalRecipe(rti, s) {
      rti[_canonicalRecipe] = s;
    }
    static getLegacyErasedRecipe(rti) {
      let s = dart_rti.Rti._getCanonicalRecipe(rti);
      return s.replace(/\*/g, "");
    }
    static ['_#new#tearOff']() {
      return new dart_rti.Rti.new();
    }
  };
  (dart_rti.Rti.new = function() {
    this[_as] = null;
    this[_is] = null;
    this[_precomputed1] = null;
    this[_isSubtypeCache] = null;
    this[_dynamicCheckData] = null;
    this[_specializedTestResource] = null;
    this[_cachedRuntimeType] = null;
    this[_kind] = 0;
    this[_primary] = null;
    this[_rest] = null;
    this[_evalCache] = null;
    this[_bindCache] = null;
    this[_canonicalRecipe] = null;
    ;
  }).prototype = dart_rti.Rti.prototype;
  dart.addRtiResources(dart_rti.Rti, ["_rti|Rti"]);
  dart.setMethodSignature(dart_rti.Rti, () => dart.global.Object.setPrototypeOf({
    [_eval]: T$.ObjectNToRti(),
    [_bind]: T$.ObjectNToRti(),
    [_bind1]: T$.ObjectNToRti()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(dart_rti.Rti))));
  dart.setStaticMethodSignature(dart_rti.Rti, () => ['_setAsCheckFunction', '_setIsTestFunction', '_asCheck', '_isCheck', '_getPrecomputed1', '_setPrecomputed1', '_unstar', '_getQuestionFromStar', '_getFutureFromFutureOr', '_getIsSubtypeCache', '_getDynamicCheckData', '_setDynamicCheckData', '_getSpecializedTestResource', '_setSpecializedTestResource', '_getCachedRuntimeType', '_setCachedRuntimeType', '_getKind', '_setKind', '_isUnionOfFunctionType', '_getPrimary', '_setPrimary', '_getRest', '_setRest', '_getInterfaceName', '_getInterfaceTypeArguments', '_getBindingBase', '_getBindingArguments', '_getRecordPartialShapeTag', '_getRecordFields', '_getStarArgument', '_getQuestionArgument', '_getFutureOrArgument', '_getReturnType', '_getFunctionParameters', '_getGenericFunctionBase', '_getGenericFunctionBounds', '_getGenericFunctionParameterIndex', '_getEvalCache', '_setEvalCache', '_getBindCache', '_setBindCache', 'allocate', '_getCanonicalRecipe', '_setCanonicalRecipe', 'getLegacyErasedRecipe']);
  dart.setLibraryUri(dart_rti.Rti, I[20]);
  dart.setFieldSignature(dart_rti.Rti, () => dart.global.Object.setPrototypeOf({
    [_as]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_is]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_precomputed1]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isSubtypeCache]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_dynamicCheckData]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_specializedTestResource]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_cachedRuntimeType]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kind]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_primary]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_rest]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_evalCache]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_bindCache]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_canonicalRecipe]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(dart_rti.Rti))));
  dart.setStaticFieldSignature(dart_rti.Rti, () => ['kindNever', 'kindDynamic', 'kindVoid', 'kindAny', 'kindErased', 'kindStar', 'kindQuestion', 'kindFutureOr', 'kindInterface', 'kindBinding', 'kindRecord', 'kindFunction', 'kindGenericFunction', 'kindGenericFunctionParameter']);
  dart.defineLazy(dart_rti.Rti, {
    /*dart_rti.Rti.kindNever*/get kindNever() {
      return 1;
    },
    /*dart_rti.Rti.kindDynamic*/get kindDynamic() {
      return 2;
    },
    /*dart_rti.Rti.kindVoid*/get kindVoid() {
      return 3;
    },
    /*dart_rti.Rti.kindAny*/get kindAny() {
      return 4;
    },
    /*dart_rti.Rti.kindErased*/get kindErased() {
      return 5;
    },
    /*dart_rti.Rti.kindStar*/get kindStar() {
      return 6;
    },
    /*dart_rti.Rti.kindQuestion*/get kindQuestion() {
      return 7;
    },
    /*dart_rti.Rti.kindFutureOr*/get kindFutureOr() {
      return 8;
    },
    /*dart_rti.Rti.kindInterface*/get kindInterface() {
      return 9;
    },
    /*dart_rti.Rti.kindBinding*/get kindBinding() {
      return 10;
    },
    /*dart_rti.Rti.kindRecord*/get kindRecord() {
      return 11;
    },
    /*dart_rti.Rti.kindFunction*/get kindFunction() {
      return 12;
    },
    /*dart_rti.Rti.kindGenericFunction*/get kindGenericFunction() {
      return 13;
    },
    /*dart_rti.Rti.kindGenericFunctionParameter*/get kindGenericFunctionParameter() {
      return 14;
    }
  }, false);
  var _requiredPositional = dart.privateName(dart_rti, "_requiredPositional");
  var _optionalPositional = dart.privateName(dart_rti, "_optionalPositional");
  var _named = dart.privateName(dart_rti, "_named");
  dart_rti._FunctionParameters = class _FunctionParameters extends core.Object {
    static allocate() {
      return new dart_rti._FunctionParameters.new();
    }
    static _getRequiredPositional(parameters) {
      return parameters[_requiredPositional];
    }
    static _setRequiredPositional(parameters, requiredPositional) {
      parameters[_requiredPositional] = requiredPositional;
    }
    static _getOptionalPositional(parameters) {
      return parameters[_optionalPositional];
    }
    static _setOptionalPositional(parameters, optionalPositional) {
      parameters[_optionalPositional] = optionalPositional;
    }
    static _getNamed(parameters) {
      return parameters[_named];
    }
    static _setNamed(parameters, named) {
      parameters[_named] = named;
    }
    static ['_#new#tearOff']() {
      return new dart_rti._FunctionParameters.new();
    }
  };
  (dart_rti._FunctionParameters.new = function() {
    this[_requiredPositional] = null;
    this[_optionalPositional] = null;
    this[_named] = null;
    ;
  }).prototype = dart_rti._FunctionParameters.prototype;
  dart.addRtiResources(dart_rti._FunctionParameters, ["_rti|_FunctionParameters"]);
  dart.setStaticMethodSignature(dart_rti._FunctionParameters, () => ['allocate', '_getRequiredPositional', '_setRequiredPositional', '_getOptionalPositional', '_setOptionalPositional', '_getNamed', '_setNamed']);
  dart.setLibraryUri(dart_rti._FunctionParameters, I[20]);
  dart.setFieldSignature(dart_rti._FunctionParameters, () => dart.global.Object.setPrototypeOf({
    [_requiredPositional]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_optionalPositional]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_named]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(dart_rti._FunctionParameters))));
  var _rti$ = dart.privateName(dart_rti, "_rti");
  dart_rti._Type = class _Type extends core.Object {
    static ['_#new#tearOff'](_rti) {
      return new dart_rti._Type.new(_rti);
    }
    toString() {
      return dart_rti._rtiToString(this[_rti$], null);
    }
  };
  (dart_rti._Type.new = function(_rti) {
    this[_rti$] = _rti;
    if (!(dart_rti.Rti._getCachedRuntimeType(_rti) == null)) dart.assertFailed(null, I[21], 1110, 29, "Rti._getCachedRuntimeType(_rti) == null");
    dart_rti.Rti._setCachedRuntimeType(this[_rti$], this);
  }).prototype = dart_rti._Type.prototype;
  dart.addRtiResources(dart_rti._Type, ["_rti|_Type", "core|Type"]);
  dart.setLibraryUri(dart_rti._Type, I[20]);
  dart.setFieldSignature(dart_rti._Type, () => dart.global.Object.setPrototypeOf({[_rti$]: {type: T$.Rti(), isConst: false, isFinal: true, libraryUri: I[20]}}, dart.getFields(dart.global.Object.getPrototypeOf(dart_rti._Type))));
  dart.defineExtensionMethods(dart_rti._Type, ['toString']);
  dart_rti._TypeError = class _TypeError extends dart_rti._Error {
    static ['_#fromMessage#tearOff'](message) {
      return new dart_rti._TypeError.fromMessage(message);
    }
    static forType(object, type) {
      return new dart_rti._TypeError.fromMessage(dart_rti._Error.compose(object, type));
    }
    static ['_#forType#tearOff'](object, type) {
      return dart_rti._TypeError.forType(object, type);
    }
    get message() {
      return this[_message$];
    }
  };
  (dart_rti._TypeError.fromMessage = function(message) {
    dart.global.Object.getPrototypeOf(dart_rti._TypeError).new.call(this, "TypeError: " + message);
    ;
  }).prototype = dart_rti._TypeError.prototype;
  dart.addRtiResources(dart_rti._TypeError, ["_rti|_TypeError", "core|TypeError", "core|Error"]);
  dart.setStaticMethodSignature(dart_rti._TypeError, () => ['forType']);
  dart.setGetterSignature(dart_rti._TypeError, () => dart.global.Object.setPrototypeOf({message: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(dart_rti._TypeError))));
  dart.setLibraryUri(dart_rti._TypeError, I[20]);
  dart_rti._Universe = class _Universe extends core.Object {
    static ['_#_#tearOff']() {
      return new dart_rti._Universe.__();
    }
    static create() {
      return {eC: new Map(), tR: {}, eT: {}, tPV: {}, sEA: []};
    }
    static evalCache(universe) {
      return universe.eC;
    }
    static typeRules(universe) {
      return universe.tR;
    }
    static erasedTypes(universe) {
      return universe.eT;
    }
    static typeParameterVariances(universe) {
      return universe.tPV;
    }
    static _findRule(universe, targetType) {
      return universe.tR[targetType];
    }
    static findRule(universe, targetType) {
      let rule = universe.tR[targetType];
      while (typeof rule == "string") {
        rule = universe.tR[rule];
      }
      return rule;
    }
    static findErasedType(universe, cls) {
      let metadata = universe.eT;
      let probe = metadata[cls];
      if (probe == null) {
        return dart_rti._Universe.eval(universe, cls, false);
      } else if (typeof probe == "number") {
        let length = probe;
        let erased = dart_rti._Universe._lookupTerminalRti(universe, 5, "#");
        let $arguments = dart_rti._Utils.newArrayOrEmpty(length);
        for (let i = 0; i < length; i = i + 1) {
          dart_rti._Utils.arraySetAt($arguments, i, erased);
        }
        let $interface = dart_rti._Universe._lookupInterfaceRti(universe, cls, $arguments);
        metadata[cls] = $interface;
        return $interface;
      } else {
        return probe;
      }
    }
    static findTypeParameterVariances(universe, cls) {
      return universe.tPV[cls];
    }
    static addRules(universe, rules) {
      return dart_rti._Utils.objectAssign(universe.tR, rules);
    }
    static addOrUpdateRules(universe, newRules) {
      let targetTypes = Object.keys(newRules);
      let typeCount = targetTypes.length;
      for (let i = 0; i < typeCount; i = i + 1) {
        let targetType = targetTypes[i];
        let updatedRule = newRules[targetType];
        let rule = universe.tR[targetType];
        if (rule == null) {
          universe.tR[targetType] = updatedRule;
        } else {
          if (!!(typeof rule == "string")) dart.assertFailed(null, I[21], 2140, 16, "!_Utils.isString(rule)");
          dart_rti._Utils.objectAssign(rule, updatedRule);
        }
      }
    }
    static addErasedTypes(universe, types) {
      return dart_rti._Utils.objectAssign(universe.eT, types);
    }
    static addTypeParameterVariances(universe, variances) {
      return dart_rti._Utils.objectAssign(universe.tPV, variances);
    }
    static sharedEmptyArray(universe) {
      return universe.sEA;
    }
    static eval(universe, recipe, normalize) {
      let cache = universe.eC;
      let probe = cache.get(recipe);
      if (probe != null) return probe;
      let rti = dart_rti._Universe._parseRecipe(universe, null, recipe, normalize);
      dart_rti._Utils.mapSet(cache, recipe, rti);
      return rti;
    }
    static evalInEnvironment(universe, environment, recipe) {
      let cache = dart_rti.Rti._getEvalCache(environment);
      if (cache == null) {
        cache = new Map();
        dart_rti.Rti._setEvalCache(environment, cache);
      }
      let probe = cache.get(recipe);
      if (probe != null) return probe;
      let rti = dart_rti._Universe._parseRecipe(universe, environment, recipe, true);
      dart_rti._Utils.mapSet(cache, recipe, rti);
      return rti;
    }
    static bind(universe, environment, argumentsRti) {
      let cache = dart_rti.Rti._getBindCache(environment);
      if (cache == null) {
        cache = new Map();
        dart_rti.Rti._setBindCache(environment, cache);
      }
      let argumentsRecipe = dart_rti.Rti._getCanonicalRecipe(argumentsRti);
      let probe = cache.get(argumentsRecipe);
      if (probe != null) return probe;
      let argumentsArray = null;
      if (dart_rti.Rti._getKind(argumentsRti) === 10) {
        argumentsArray = dart_rti.Rti._getBindingArguments(argumentsRti);
      } else {
        argumentsArray = [argumentsRti];
      }
      let rti = dart_rti._Universe._lookupBindingRti(universe, environment, argumentsArray);
      dart_rti._Utils.mapSet(cache, argumentsRecipe, rti);
      return rti;
    }
    static bind1(universe, environment, argumentsRti) {
      dart.throw(new core.UnimplementedError.new("_Universe.bind1"));
    }
    static evalTypeVariable(universe, environment, name) {
      let kind = dart_rti.Rti._getKind(environment);
      if (kind === 10) {
        environment = dart_rti.Rti._getBindingBase(environment);
      }
      let interfaceName = dart_rti.Rti._getInterfaceName(environment);
      let rule = dart_rti._Universe.findRule(universe, interfaceName);
      if (!(rule != null)) dart.assertFailed(null, I[21], 2211, 12, "rule != null");
      let recipe = rule[name];
      if (recipe == null) {
        dart.throw("No \"" + name + "\" in \"" + dart_rti.Rti._getCanonicalRecipe(environment) + "\"");
      }
      return dart_rti._Universe.evalInEnvironment(universe, environment, recipe);
    }
    static _parseRecipe(universe, environment, recipe, normalize) {
      let parser = {u: universe, e: environment, r: recipe, s: [], p: 0, n: normalize};
      let rti = dart_rti._Parser.parse(parser);
      return rti;
    }
    static _installTypeTests(universe, rti) {
      let asFn = dart_rti._installSpecializedAsCheck;
      let isFn = dart_rti._installSpecializedIsTest;
      dart_rti.Rti._setAsCheckFunction(rti, asFn);
      dart_rti.Rti._setIsTestFunction(rti, isFn);
      return rti;
    }
    static _installRti(universe, key, rti) {
      dart_rti._Utils.mapSet(universe.eC, key, rti);
      return rti;
    }
    static _recipeJoin(s1, s2) {
      return s1 + s2;
    }
    static _recipeJoin3(s1, s2, s3) {
      return s1 + (s2 + s3);
    }
    static _recipeJoin4(s1, s2, s3, s4) {
      return s1 + (s2 + s3 + s4);
    }
    static _recipeJoin5(s1, s2, s3, s4, s5) {
      return s1 + (s2 + s3 + s4 + s5);
    }
    static _canonicalRecipeOfErased() {
      return "#";
    }
    static _canonicalRecipeOfDynamic() {
      return "@";
    }
    static _canonicalRecipeOfVoid() {
      return "~";
    }
    static _canonicalRecipeOfNever() {
      return "0" + "&";
    }
    static _canonicalRecipeOfAny() {
      return "1" + "&";
    }
    static _canonicalRecipeOfStar(baseType) {
      return dart_rti.Rti._getCanonicalRecipe(baseType) + "*";
    }
    static _canonicalRecipeOfQuestion(baseType) {
      return dart_rti.Rti._getCanonicalRecipe(baseType) + "?";
    }
    static _canonicalRecipeOfFutureOr(baseType) {
      return dart_rti.Rti._getCanonicalRecipe(baseType) + "/";
    }
    static _canonicalRecipeOfGenericFunctionParameter(index) {
      return dart.strSafe(index) + "^";
    }
    static _lookupErasedRti(universe) {
      return dart_rti._Universe._lookupTerminalRti(universe, 5, "#");
    }
    static _lookupDynamicRti(universe) {
      return dart_rti._Universe._lookupTerminalRti(universe, 2, "@");
    }
    static _lookupVoidRti(universe) {
      return dart_rti._Universe._lookupTerminalRti(universe, 3, "~");
    }
    static _lookupNeverRti(universe) {
      return dart_rti._Universe._lookupTerminalRti(universe, 1, "0" + "&");
    }
    static _lookupAnyRti(universe) {
      return dart_rti._Universe._lookupTerminalRti(universe, 4, "1" + "&");
    }
    static _lookupTerminalRti(universe, kind, key) {
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createTerminalRti(universe, kind, key));
    }
    static _createTerminalRti(universe, kind, key) {
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, kind);
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
    static _lookupStarRti(universe, baseType, normalize) {
      let key = dart_rti.Rti._getCanonicalRecipe(baseType) + "*";
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createStarRti(universe, baseType, key, normalize));
    }
    static _createStarRti(universe, baseType, key, normalize) {
      if (normalize) {
        let baseKind = dart_rti.Rti._getKind(baseType);
        if (dart_rti.isSoundTopType(baseType) || dart_rti.isNullType(baseType) || baseKind === 7 || baseKind === 6) {
          return baseType;
        }
      }
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, 6);
      dart_rti.Rti._setPrimary(rti, baseType);
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
    static _lookupQuestionRti(universe, baseType, normalize) {
      let key = dart_rti.Rti._getCanonicalRecipe(baseType) + "?";
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createQuestionRti(universe, baseType, key, normalize));
    }
    static _createQuestionRti(universe, baseType, key, normalize) {
      if (normalize) {
        let baseKind = dart_rti.Rti._getKind(baseType);
        if (dart_rti.isSoundTopType(baseType) || dart_rti.isNullType(baseType) || baseKind === 7 || baseKind === 8 && dart_rti.isNullable(dart_rti.Rti._getFutureOrArgument(baseType))) {
          return baseType;
        } else if (baseKind === 1 || baseType === T$.NeverL()) {
          return T$.Null();
        } else if (baseKind === 6) {
          let starArgument = dart_rti.Rti._getStarArgument(baseType);
          let starArgumentKind = dart_rti.Rti._getKind(starArgument);
          if (starArgumentKind === 8 && dart_rti.isNullable(dart_rti.Rti._getFutureOrArgument(starArgument))) {
            return starArgument;
          } else {
            return dart_rti.Rti._getQuestionFromStar(universe, baseType);
          }
        }
      }
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, 7);
      dart_rti.Rti._setPrimary(rti, baseType);
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
    static _lookupFutureOrRti(universe, baseType, normalize) {
      let key = dart_rti.Rti._getCanonicalRecipe(baseType) + "/";
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createFutureOrRti(universe, baseType, key, normalize));
    }
    static _createFutureOrRti(universe, baseType, key, normalize) {
      if (normalize) {
        let baseKind = dart_rti.Rti._getKind(baseType);
        if (dart_rti.isSoundTopType(baseType) || baseType === T$.Object() || baseType === T$.ObjectL()) {
          return baseType;
        } else if (baseKind === 1) {
          return dart_rti._Universe._lookupInterfaceRti(universe, "async|Future", [baseType]);
        } else if (dart_rti.isNullType(baseType)) {
          return T$.FutureNOfNull();
        }
      }
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, 8);
      dart_rti.Rti._setPrimary(rti, baseType);
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
    static _lookupGenericFunctionParameterRti(universe, index) {
      let key = dart_rti._Universe._canonicalRecipeOfGenericFunctionParameter(index);
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createGenericFunctionParameterRti(universe, index, key));
    }
    static _createGenericFunctionParameterRti(universe, index, key) {
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, 14);
      dart_rti.Rti._setPrimary(rti, index);
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
    static _canonicalRecipeJoin($arguments) {
      let s = "";
      let sep = "";
      let length = $arguments.length;
      for (let i = 0; i < length; i = i + 1) {
        let argument = $arguments[i];
        let subrecipe = dart_rti.Rti._getCanonicalRecipe(argument);
        s = s + (sep + subrecipe);
        sep = ",";
      }
      return s;
    }
    static _canonicalRecipeJoinNamed($arguments) {
      let s = "";
      let sep = "";
      let length = $arguments.length;
      if (!(length % 3 === 0)) dart.assertFailed(null, I[21], 2464, 12, "_Utils.isMultipleOf(length, 3)");
      for (let i = 0; i < length; i = i + 3) {
        let name = $arguments[i];
        let isRequired = $arguments[i + 1];
        let nameSep = isRequired ? "!" : ":";
        let type = $arguments[i + 2];
        let subrecipe = dart_rti.Rti._getCanonicalRecipe(type);
        s = s + (sep + name + nameSep + subrecipe);
        sep = ",";
      }
      return s;
    }
    static _canonicalRecipeOfInterface(name, $arguments) {
      if (!(typeof name == "string")) dart.assertFailed(null, I[21], 2480, 12, "_Utils.isString(name)");
      let s = name;
      let length = $arguments.length;
      if (length > 0) {
        s = s + ("<" + dart_rti._Universe._canonicalRecipeJoin($arguments) + ">");
      }
      return s;
    }
    static _lookupInterfaceRti(universe, name, $arguments) {
      let key = dart_rti._Universe._canonicalRecipeOfInterface(name, $arguments);
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createInterfaceRti(universe, name, $arguments, key));
    }
    static _createInterfaceRti(universe, name, typeArguments, key) {
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, 9);
      dart_rti.Rti._setPrimary(rti, name);
      dart_rti.Rti._setRest(rti, typeArguments);
      let length = typeArguments.length;
      if (length > 0) {
        dart_rti.Rti._setPrecomputed1(rti, typeArguments[0]);
      }
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
    static _lookupFutureRti(universe, base) {
      return dart_rti._Universe._lookupInterfaceRti(universe, "async|Future", [base]);
    }
    static _canonicalRecipeOfBinding(base, $arguments) {
      return dart_rti.Rti._getCanonicalRecipe(base) + (";" + "<" + dart_rti._Universe._canonicalRecipeJoin($arguments) + ">");
    }
    static _lookupBindingRti(universe, base, $arguments) {
      let newBase = base;
      let newArguments = $arguments;
      if (dart_rti.Rti._getKind(base) === 10) {
        newBase = dart_rti.Rti._getBindingBase(base);
        newArguments = dart_rti.Rti._getBindingArguments(base).concat($arguments);
      }
      let key = dart_rti._Universe._canonicalRecipeOfBinding(newBase, newArguments);
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createBindingRti(universe, newBase, newArguments, key));
    }
    static _createBindingRti(universe, base, $arguments, key) {
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, 10);
      dart_rti.Rti._setPrimary(rti, base);
      dart_rti.Rti._setRest(rti, $arguments);
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
    static _canonicalRecipeOfRecord(partialShapeTag, fields) {
      return "+" + (partialShapeTag + "(" + dart_rti._Universe._canonicalRecipeJoin(fields) + ")");
    }
    static _lookupRecordRti(universe, partialShapeTag, fields) {
      let key = "+" + (partialShapeTag + "(" + dart_rti._Universe._canonicalRecipeJoin(fields) + ")");
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createRecordRti(universe, partialShapeTag, fields, key));
    }
    static _createRecordRti(universe, partialShapeTag, fields, key) {
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, 11);
      dart_rti.Rti._setPrimary(rti, partialShapeTag);
      dart_rti.Rti._setRest(rti, fields);
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
    static _canonicalRecipeOfFunction(returnType, parameters) {
      return dart_rti.Rti._getCanonicalRecipe(returnType) + dart_rti._Universe._canonicalRecipeOfFunctionParameters(parameters);
    }
    static _canonicalRecipeOfFunctionParameters(parameters) {
      let requiredPositional = dart_rti._FunctionParameters._getRequiredPositional(parameters);
      let requiredPositionalLength = requiredPositional.length;
      let optionalPositional = dart_rti._FunctionParameters._getOptionalPositional(parameters);
      let optionalPositionalLength = optionalPositional.length;
      let named = dart_rti._FunctionParameters._getNamed(parameters);
      let namedLength = named.length;
      if (!(optionalPositionalLength === 0 || namedLength === 0)) dart.assertFailed(null, I[21], 2600, 12, "optionalPositionalLength == 0 || namedLength == 0");
      let recipe = "(" + dart_rti._Universe._canonicalRecipeJoin(requiredPositional);
      if (optionalPositionalLength > 0) {
        let sep = requiredPositionalLength > 0 ? "," : "";
        recipe = recipe + (sep + "[" + dart_rti._Universe._canonicalRecipeJoin(optionalPositional) + "]");
      }
      if (namedLength > 0) {
        let sep = requiredPositionalLength > 0 ? "," : "";
        recipe = recipe + (sep + "{" + dart_rti._Universe._canonicalRecipeJoinNamed(named) + "}");
      }
      return recipe + ")";
    }
    static _lookupFunctionRti(universe, returnType, parameters) {
      let key = dart_rti._Universe._canonicalRecipeOfFunction(returnType, parameters);
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createFunctionRti(universe, returnType, parameters, key));
    }
    static _createFunctionRti(universe, returnType, parameters, key) {
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, 12);
      dart_rti.Rti._setPrimary(rti, returnType);
      dart_rti.Rti._setRest(rti, parameters);
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
    static _canonicalRecipeOfGenericFunction(baseFunctionType, bounds) {
      return dart_rti.Rti._getCanonicalRecipe(baseFunctionType) + ("<" + dart_rti._Universe._canonicalRecipeJoin(bounds) + ">");
    }
    static _lookupGenericFunctionRti(universe, baseFunctionType, bounds, normalize) {
      let key = dart_rti._Universe._canonicalRecipeOfGenericFunction(baseFunctionType, bounds);
      let cache = universe.eC;
      let probe = cache.get(key);
      if (probe != null) return probe;
      return dart_rti._Universe._installRti(universe, key, dart_rti._Universe._createGenericFunctionRti(universe, baseFunctionType, bounds, key, normalize));
    }
    static _createGenericFunctionRti(universe, baseFunctionType, bounds, key, normalize) {
      if (normalize) {
        let length = bounds.length;
        let count = 0;
        let typeArguments = dart_rti._Utils.newArrayOrEmpty(length);
        for (let i = 0; i < length; i = i + 1) {
          let bound = bounds[i];
          if (dart_rti.Rti._getKind(bound) === 1) {
            dart_rti._Utils.arraySetAt(typeArguments, i, bound);
            count = count + 1;
          }
        }
        if (count > 0) {
          let substitutedBase = dart_rti._substitute(universe, baseFunctionType, typeArguments, 0);
          let substitutedBounds = dart_rti._substituteArray(universe, bounds, typeArguments, 0);
          return dart_rti._Universe._lookupGenericFunctionRti(universe, substitutedBase, substitutedBounds, bounds !== substitutedBounds);
        }
      }
      let rti = dart_rti.Rti.allocate();
      dart_rti.Rti._setKind(rti, 13);
      dart_rti.Rti._setPrimary(rti, baseFunctionType);
      dart_rti.Rti._setRest(rti, bounds);
      dart_rti.Rti._setCanonicalRecipe(rti, key);
      return dart_rti._Universe._installTypeTests(universe, rti);
    }
  };
  (dart_rti._Universe.__ = function() {
    dart.throw(new core.UnimplementedError.new("_Universe is static methods only"));
  }).prototype = dart_rti._Universe.prototype;
  dart.addRtiResources(dart_rti._Universe, ["_rti|_Universe"]);
  dart.setStaticMethodSignature(dart_rti._Universe, () => ['create', 'evalCache', 'typeRules', 'erasedTypes', 'typeParameterVariances', '_findRule', 'findRule', 'findErasedType', 'findTypeParameterVariances', 'addRules', 'addOrUpdateRules', 'addErasedTypes', 'addTypeParameterVariances', 'sharedEmptyArray', 'eval', 'evalInEnvironment', 'bind', 'bind1', 'evalTypeVariable', '_parseRecipe', '_installTypeTests', '_installRti', '_recipeJoin', '_recipeJoin3', '_recipeJoin4', '_recipeJoin5', '_canonicalRecipeOfErased', '_canonicalRecipeOfDynamic', '_canonicalRecipeOfVoid', '_canonicalRecipeOfNever', '_canonicalRecipeOfAny', '_canonicalRecipeOfStar', '_canonicalRecipeOfQuestion', '_canonicalRecipeOfFutureOr', '_canonicalRecipeOfGenericFunctionParameter', '_lookupErasedRti', '_lookupDynamicRti', '_lookupVoidRti', '_lookupNeverRti', '_lookupAnyRti', '_lookupTerminalRti', '_createTerminalRti', '_lookupStarRti', '_createStarRti', '_lookupQuestionRti', '_createQuestionRti', '_lookupFutureOrRti', '_createFutureOrRti', '_lookupGenericFunctionParameterRti', '_createGenericFunctionParameterRti', '_canonicalRecipeJoin', '_canonicalRecipeJoinNamed', '_canonicalRecipeOfInterface', '_lookupInterfaceRti', '_createInterfaceRti', '_lookupFutureRti', '_canonicalRecipeOfBinding', '_lookupBindingRti', '_createBindingRti', '_canonicalRecipeOfRecord', '_lookupRecordRti', '_createRecordRti', '_canonicalRecipeOfFunction', '_canonicalRecipeOfFunctionParameters', '_lookupFunctionRti', '_createFunctionRti', '_canonicalRecipeOfGenericFunction', '_lookupGenericFunctionRti', '_createGenericFunctionRti']);
  dart.setLibraryUri(dart_rti._Universe, I[20]);
  dart_rti._Parser = class _Parser extends core.Object {
    static ['_#_#tearOff']() {
      return new dart_rti._Parser.__();
    }
    static create(universe, environment, recipe, normalize) {
      return {u: universe, e: environment, r: recipe, s: [], p: 0, n: normalize};
    }
    static universe(parser) {
      return parser.u;
    }
    static environment(parser) {
      return parser.e;
    }
    static recipe(parser) {
      return parser.r;
    }
    static stack(parser) {
      return parser.s;
    }
    static position(parser) {
      return parser.p;
    }
    static setPosition(parser, p) {
      parser.p = p;
    }
    static normalize(parser) {
      return parser.n;
    }
    static charCodeAt(s, i) {
      return s.charCodeAt(i);
    }
    static push(stack, value) {
      stack.push(value);
    }
    static pop(stack) {
      return stack.pop();
    }
    static parse(parser) {
      let source = parser.r;
      let stack = parser.s;
      let i = 0;
      while (i < source.length) {
        let ch = source.charCodeAt(i);
        if (_recipe_syntax.Recipe.isDigit(ch)) {
          i = dart_rti._Parser.handleDigit(i + 1, ch, source, stack);
        } else if (_recipe_syntax.Recipe.isIdentifierStart(ch)) {
          i = dart_rti._Parser.handleIdentifier(parser, i, source, stack, false);
        } else if (ch === 46) {
          i = dart_rti._Parser.handleIdentifier(parser, i, source, stack, true);
        } else {
          i = i + 1;
          switch (ch) {
            case 44:
              {
                break;
              }
            case 58:
              {
                dart_rti._Parser.push(stack, false);
                break;
              }
            case 33:
              {
                dart_rti._Parser.push(stack, true);
                break;
              }
            case 59:
              {
                dart_rti._Parser.push(stack, dart_rti._Parser.toType(parser.u, parser.e, stack.pop()));
                break;
              }
            case 94:
              {
                dart_rti._Parser.push(stack, dart_rti._Parser.toGenericFunctionParameter(parser.u, stack.pop()));
                break;
              }
            case 35:
              {
                dart_rti._Parser.push(stack, dart_rti._Universe._lookupTerminalRti(parser.u, 5, "#"));
                break;
              }
            case 64:
              {
                dart_rti._Parser.push(stack, dart_rti._Universe._lookupTerminalRti(parser.u, 2, "@"));
                break;
              }
            case 126:
              {
                dart_rti._Parser.push(stack, dart_rti._Universe._lookupTerminalRti(parser.u, 3, "~"));
                break;
              }
            case 60:
              {
                dart_rti._Parser.pushStackFrame(parser, stack);
                break;
              }
            case 62:
              {
                dart_rti._Parser.handleTypeArguments(parser, stack);
                break;
              }
            case 38:
              {
                dart_rti._Parser.handleExtendedOperations(parser, stack);
                break;
              }
            case 42:
              {
                let u = parser.u;
                dart_rti._Parser.push(stack, dart_rti._Universe._lookupStarRti(u, dart_rti._Parser.toType(u, parser.e, stack.pop()), parser.n));
                break;
              }
            case 63:
              {
                let u = parser.u;
                dart_rti._Parser.push(stack, dart_rti._Universe._lookupQuestionRti(u, dart_rti._Parser.toType(u, parser.e, stack.pop()), parser.n));
                break;
              }
            case 47:
              {
                let u = parser.u;
                dart_rti._Parser.push(stack, dart_rti._Universe._lookupFutureOrRti(u, dart_rti._Parser.toType(u, parser.e, stack.pop()), parser.n));
                break;
              }
            case 40:
              {
                dart_rti._Parser.push(stack, -3);
                dart_rti._Parser.pushStackFrame(parser, stack);
                break;
              }
            case 41:
              {
                dart_rti._Parser.handleArguments(parser, stack);
                break;
              }
            case 91:
              {
                dart_rti._Parser.pushStackFrame(parser, stack);
                break;
              }
            case 93:
              {
                dart_rti._Parser.handleOptionalGroup(parser, stack);
                break;
              }
            case 123:
              {
                dart_rti._Parser.pushStackFrame(parser, stack);
                break;
              }
            case 125:
              {
                dart_rti._Parser.handleNamedGroup(parser, stack);
                break;
              }
            case 43:
              {
                i = dart_rti._Parser.handleStartRecord(parser, i, source, stack);
                break;
              }
            default:
              {
                throw "Bad character " + ch;
              }
          }
        }
      }
      let item = stack.pop();
      return dart_rti._Parser.toType(parser.u, parser.e, item);
    }
    static pushStackFrame(parser, stack) {
      dart_rti._Parser.push(stack, parser.p);
      dart_rti._Parser.setPosition(parser, stack.length);
    }
    static handleDigit(i, digit, source, stack) {
      let value = _recipe_syntax.Recipe.digitValue(digit);
      for (; i < source.length; i = i + 1) {
        let ch = source.charCodeAt(i);
        if (!_recipe_syntax.Recipe.isDigit(ch)) break;
        value = value * 10 + _recipe_syntax.Recipe.digitValue(ch);
      }
      dart_rti._Parser.push(stack, value);
      return i;
    }
    static handleIdentifier(parser, start, source, stack, hasPeriod) {
      let i = start + 1;
      for (; i < source.length; i = i + 1) {
        let ch = source.charCodeAt(i);
        if (ch === 46) {
          if (hasPeriod) break;
          hasPeriod = true;
        } else if (_recipe_syntax.Recipe.isIdentifierStart(ch) || _recipe_syntax.Recipe.isDigit(ch)) {
        } else {
          break;
        }
      }
      let string = source.substring(start, i);
      if (hasPeriod) {
        dart_rti._Parser.push(stack, dart_rti._Universe.evalTypeVariable(parser.u, dart.nullCheck(parser.e), string));
      } else {
        dart_rti._Parser.push(stack, string);
      }
      return i;
    }
    static handleTypeArguments(parser, stack) {
      let universe = parser.u;
      let $arguments = dart_rti._Parser.collectArray(parser, stack);
      let head = stack.pop();
      if (typeof head == "string") {
        let name = head;
        dart_rti._Parser.push(stack, dart_rti._Universe._lookupInterfaceRti(universe, name, $arguments));
      } else {
        let base = dart_rti._Parser.toType(universe, parser.e, head);
        switch (dart_rti.Rti._getKind(base)) {
          case 12:
            {
              dart_rti._Parser.push(stack, dart_rti._Universe._lookupGenericFunctionRti(universe, base, $arguments, parser.n));
              break;
            }
          default:
            {
              dart_rti._Parser.push(stack, dart_rti._Universe._lookupBindingRti(universe, base, $arguments));
              break;
            }
        }
      }
    }
    static handleArguments(parser, stack) {
      let universe = parser.u;
      let optionalPositional = null;
      let named = null;
      let head = stack.pop();
      if (typeof head == "number") {
        let sentinel = head;
        switch (sentinel) {
          case -1:
            {
              optionalPositional = stack.pop();
              break;
            }
          case -2:
            {
              named = stack.pop();
              break;
            }
          default:
            {
              dart_rti._Parser.push(stack, head);
              break;
            }
        }
      } else {
        dart_rti._Parser.push(stack, head);
      }
      let requiredPositional = dart_rti._Parser.collectArray(parser, stack);
      head = stack.pop();
      switch (head) {
        case -3:
          {
            head = stack.pop();
            optionalPositional == null ? optionalPositional = universe.sEA : null;
            named == null ? named = universe.sEA : null;
            let returnType = dart_rti._Parser.toType(universe, parser.e, head);
            let parameters = dart_rti._FunctionParameters.allocate();
            dart_rti._FunctionParameters._setRequiredPositional(parameters, requiredPositional);
            dart_rti._FunctionParameters._setOptionalPositional(parameters, optionalPositional);
            dart_rti._FunctionParameters._setNamed(parameters, named);
            dart_rti._Parser.push(stack, dart_rti._Universe._lookupFunctionRti(universe, returnType, parameters));
            return;
          }
        case -4:
          {
            if (!(optionalPositional == null)) dart.assertFailed(null, I[21], 3117, 16, "optionalPositional == null");
            if (!(named == null)) dart.assertFailed(null, I[21], 3118, 16, "named == null");
            head = stack.pop();
            if (!(typeof head == "string")) dart.assertFailed(null, I[21], 3120, 16, "_Utils.isString(head)");
            dart_rti._Parser.push(stack, dart_rti._Universe._lookupRecordRti(universe, head, requiredPositional));
            return;
          }
        default:
          {
            dart.throw(new core.AssertionError.new("Unexpected state under `()`: " + dart.str(head)));
          }
      }
    }
    static handleOptionalGroup(parser, stack) {
      let parameters = dart_rti._Parser.collectArray(parser, stack);
      dart_rti._Parser.push(stack, parameters);
      dart_rti._Parser.push(stack, -1);
    }
    static handleNamedGroup(parser, stack) {
      let parameters = dart_rti._Parser.collectNamed(parser, stack);
      dart_rti._Parser.push(stack, parameters);
      dart_rti._Parser.push(stack, -2);
    }
    static handleStartRecord(parser, start, source, stack) {
      let end = source.indexOf("(", start);
      if (!(end >= 0)) dart.assertFailed(null, I[21], 3148, 12, "end >= 0");
      dart_rti._Parser.push(stack, source.substring(start, end));
      dart_rti._Parser.push(stack, -4);
      dart_rti._Parser.pushStackFrame(parser, stack);
      return end + 1;
    }
    static handleExtendedOperations(parser, stack) {
      let top = stack.pop();
      if (0 === top) {
        dart_rti._Parser.push(stack, dart_rti._Universe._lookupTerminalRti(parser.u, 1, "0" + "&"));
        return;
      }
      if (1 === top) {
        dart_rti._Parser.push(stack, dart_rti._Universe._lookupTerminalRti(parser.u, 4, "1" + "&"));
        return;
      }
      dart.throw(new core.AssertionError.new("Unexpected extended operation " + dart.str(top)));
    }
    static collectArray(parser, stack) {
      let array = stack.splice(parser.p);
      dart_rti._Parser.toTypes(parser.u, parser.e, array);
      dart_rti._Parser.setPosition(parser, stack.pop());
      return array;
    }
    static collectNamed(parser, stack) {
      let array = stack.splice(parser.p);
      dart_rti._Parser.toTypesNamed(parser.u, parser.e, array);
      dart_rti._Parser.setPosition(parser, stack.pop());
      return array;
    }
    static toType(universe, environment, item) {
      if (typeof item == "string") {
        let name = item;
        return dart_rti._Universe._lookupInterfaceRti(universe, name, universe.sEA);
      } else if (typeof item == "number") {
        return dart_rti._Parser.indexToType(universe, dart.nullCheck(environment), item);
      } else {
        return item;
      }
    }
    static toTypes(universe, environment, items) {
      let length = items.length;
      for (let i = 0; i < length; i = i + 1) {
        let item = items[i];
        let type = dart_rti._Parser.toType(universe, environment, item);
        dart_rti._Utils.arraySetAt(items, i, type);
      }
    }
    static toTypesNamed(universe, environment, items) {
      let length = items.length;
      if (!(length % 3 === 0)) dart.assertFailed(null, I[21], 3207, 12, "_Utils.isMultipleOf(length, 3)");
      for (let i = 2; i < length; i = i + 3) {
        let item = items[i];
        let type = dart_rti._Parser.toType(universe, environment, item);
        dart_rti._Utils.arraySetAt(items, i, type);
      }
    }
    static indexToType(universe, environment, index) {
      let kind = dart_rti.Rti._getKind(environment);
      if (kind === 10) {
        if (index === 0) return dart_rti.Rti._getBindingBase(environment);
        let typeArguments = dart_rti.Rti._getBindingArguments(environment);
        let len = typeArguments.length;
        if (index <= len) {
          return typeArguments[index - 1];
        }
        index = index - len;
        environment = dart_rti.Rti._getBindingBase(environment);
        kind = dart_rti.Rti._getKind(environment);
      } else {
        if (index === 0) return environment;
      }
      if (kind !== 9) {
        dart.throw(new core.AssertionError.new("Indexed base must be an interface type"));
      }
      let typeArguments = dart_rti.Rti._getInterfaceTypeArguments(environment);
      let len = typeArguments.length;
      if (index <= len) {
        return typeArguments[index - 1];
      }
      dart.throw(new core.AssertionError.new("Bad index " + dart.strSafe(index) + " for " + dart.str(environment)));
    }
    static toGenericFunctionParameter(universe, item) {
      if (!(typeof item == "number")) dart.assertFailed(null, I[21], 3243, 12, "_Utils.isNum(item)");
      return dart_rti._Universe._lookupGenericFunctionParameterRti(universe, item);
    }
  };
  (dart_rti._Parser.__ = function() {
    dart.throw(new core.UnimplementedError.new("_Parser is static methods only"));
  }).prototype = dart_rti._Parser.prototype;
  dart.addRtiResources(dart_rti._Parser, ["_rti|_Parser"]);
  dart.setStaticMethodSignature(dart_rti._Parser, () => ['create', 'universe', 'environment', 'recipe', 'stack', 'position', 'setPosition', 'normalize', 'charCodeAt', 'push', 'pop', 'parse', 'pushStackFrame', 'handleDigit', 'handleIdentifier', 'handleTypeArguments', 'handleArguments', 'handleOptionalGroup', 'handleNamedGroup', 'handleStartRecord', 'handleExtendedOperations', 'collectArray', 'collectNamed', 'toType', 'toTypes', 'toTypesNamed', 'indexToType', 'toGenericFunctionParameter']);
  dart.setLibraryUri(dart_rti._Parser, I[20]);
  dart.setStaticFieldSignature(dart_rti._Parser, () => ['optionalPositionalMarker', 'namedMarker', 'gotoFunction', 'gotoRecord']);
  dart.defineLazy(dart_rti._Parser, {
    /*dart_rti._Parser.optionalPositionalMarker*/get optionalPositionalMarker() {
      return -1;
    },
    /*dart_rti._Parser.namedMarker*/get namedMarker() {
      return -2;
    },
    /*dart_rti._Parser.gotoFunction*/get gotoFunction() {
      return -3;
    },
    /*dart_rti._Parser.gotoRecord*/get gotoRecord() {
      return -4;
    }
  }, false);
  dart_rti.TypeRule = class TypeRule extends core.Object {
    static ['_#_#tearOff']() {
      return new dart_rti.TypeRule.__();
    }
    static lookupTypeVariable(rule, typeVariable) {
      return rule[typeVariable];
    }
    static lookupSupertype(rule, supertype) {
      return rule[supertype];
    }
  };
  (dart_rti.TypeRule.__ = function() {
    dart.throw(new core.UnimplementedError.new("TypeRule is static methods only."));
  }).prototype = dart_rti.TypeRule.prototype;
  dart.addRtiResources(dart_rti.TypeRule, ["_rti|TypeRule"]);
  dart.setStaticMethodSignature(dart_rti.TypeRule, () => ['lookupTypeVariable', 'lookupSupertype']);
  dart.setLibraryUri(dart_rti.TypeRule, I[20]);
  dart_rti.Variance = class Variance extends core.Object {
    static ['_#new#tearOff']() {
      return new dart_rti.Variance.new();
    }
  };
  (dart_rti.Variance.new = function() {
    ;
  }).prototype = dart_rti.Variance.prototype;
  dart.addRtiResources(dart_rti.Variance, ["_rti|Variance"]);
  dart.setLibraryUri(dart_rti.Variance, I[20]);
  dart.setStaticFieldSignature(dart_rti.Variance, () => ['legacyCovariant', 'covariant', 'contravariant', 'invariant']);
  dart.defineLazy(dart_rti.Variance, {
    /*dart_rti.Variance.legacyCovariant*/get legacyCovariant() {
      return 0;
    },
    /*dart_rti.Variance.covariant*/get covariant() {
      return 1;
    },
    /*dart_rti.Variance.contravariant*/get contravariant() {
      return 2;
    },
    /*dart_rti.Variance.invariant*/get invariant() {
      return 3;
    }
  }, false);
  dart_rti._InconsistentSubtypingError = class _InconsistentSubtypingError extends dart_rti._Error {
    static ['_#_fromMessage#tearOff'](message) {
      return new dart_rti._InconsistentSubtypingError._fromMessage(message);
    }
    static ['_#_forTypes#tearOff'](s, t) {
      return new dart_rti._InconsistentSubtypingError._forTypes(s, t);
    }
    static _compose(s, t) {
      return dart_rti._rtiToString(s, null) + " is a subtype of " + dart_rti._rtiToString(t, null) + " with " + "unsound null safety but not with sound null safety.";
    }
  };
  (dart_rti._InconsistentSubtypingError._fromMessage = function(message) {
    dart.global.Object.getPrototypeOf(dart_rti._InconsistentSubtypingError).new.call(this, "Inconsistent subtyping: " + message);
    ;
  }).prototype = dart_rti._InconsistentSubtypingError.prototype;
  (dart_rti._InconsistentSubtypingError._forTypes = function(s, t) {
    dart_rti._InconsistentSubtypingError._fromMessage.call(this, dart_rti._InconsistentSubtypingError._compose(s, t));
  }).prototype = dart_rti._InconsistentSubtypingError.prototype;
  dart.addRtiResources(dart_rti._InconsistentSubtypingError, ["_rti|_InconsistentSubtypingError", "core|TypeError", "core|Error"]);
  dart.setStaticMethodSignature(dart_rti._InconsistentSubtypingError, () => ['_compose']);
  dart.setLibraryUri(dart_rti._InconsistentSubtypingError, I[20]);
  dart_rti._Utils = class _Utils extends core.Object {
    static asNull(o) {
      return o;
    }
    static asBool(o) {
      return o;
    }
    static asDouble(o) {
      return o;
    }
    static asInt(o) {
      return o;
    }
    static asNum(o) {
      return o;
    }
    static asString(o) {
      return o;
    }
    static asRti(s) {
      return s;
    }
    static asRtiOrNull(s) {
      return s;
    }
    static as_Type(o) {
      return o;
    }
    static isString(o) {
      return typeof o == "string";
    }
    static isNum(o) {
      return typeof o == "number";
    }
    static instanceOf(o, constructor) {
      return o instanceof constructor;
    }
    static isIdentical(s, t) {
      return s === t;
    }
    static isNotIdentical(s, t) {
      return s !== t;
    }
    static isMultipleOf(n, d) {
      return n % d === 0;
    }
    static objectKeys(o) {
      return Object.keys(o);
    }
    static objectAssign(o, other) {
      let keys = Object.keys(other);
      let length = keys.length;
      for (let i = 0; i < length; i = i + 1) {
        let key = keys[i];
        o[key] = other[key];
      }
    }
    static newArrayOrEmpty(length) {
      return length > 0 ? new Array(length) : dart.typeUniverse.sEA;
    }
    static isArray(o) {
      return Array.isArray(o);
    }
    static arrayLength(array) {
      return array.length;
    }
    static arrayAt(array, i) {
      return array[i];
    }
    static arraySetAt(array, i, value) {
      array[i] = value;
    }
    static arrayShallowCopy(array) {
      return array.slice();
    }
    static arraySplice(array, position) {
      return array.splice(position);
    }
    static arrayConcat(a1, a2) {
      return a1.concat(a2);
    }
    static stringSplit(s, pattern) {
      return s.split(pattern);
    }
    static substring(s, start, end) {
      return s.substring(start, end);
    }
    static stringIndexOf(s, pattern, start) {
      return s.indexOf(pattern, start);
    }
    static stringLessThan(s1, s2) {
      return s1 < s2;
    }
    static mapGet(cache, key) {
      return cache.get(key);
    }
    static mapSet(cache, key, value) {
      cache.set(key, value);
    }
    static ['_#new#tearOff']() {
      return new dart_rti._Utils.new();
    }
  };
  (dart_rti._Utils.new = function() {
    ;
  }).prototype = dart_rti._Utils.prototype;
  dart.addRtiResources(dart_rti._Utils, ["_rti|_Utils"]);
  dart.setStaticMethodSignature(dart_rti._Utils, () => ['asNull', 'asBool', 'asDouble', 'asInt', 'asNum', 'asString', 'asRti', 'asRtiOrNull', 'as_Type', 'isString', 'isNum', 'instanceOf', 'isIdentical', 'isNotIdentical', 'isMultipleOf', 'objectKeys', 'objectAssign', 'newArrayOrEmpty', 'isArray', 'arrayLength', 'arrayAt', 'arraySetAt', 'arrayShallowCopy', 'arraySplice', 'arrayConcat', 'stringSplit', 'substring', 'stringIndexOf', 'stringLessThan', 'mapGet', 'mapSet']);
  dart.setLibraryUri(dart_rti._Utils, I[20]);
  dart_rti._onExtraNullSafetyError = function _onExtraNullSafetyError(error, trace) {
    {
      dart.throw(error);
    }
  };
  dart_rti._interopNullAssertion = function _interopNullAssertion(value) {
    if (dart.extraNullSafetyChecks) {
      if (value == null) {
        dart_rti._onExtraNullSafetyError(new dart_rti._InteropNullAssertionError.new(), core.StackTrace.current);
      }
      return value;
    } else {
      return dart.nullCheck(value);
    }
  };
  dart_rti.getLegacyErasedRti = function getLegacyErasedRti(rti) {
    let t$3612, t$3612$;
    if (!true) dart.assertFailed(null, I[21], 441, 10, "!JS_GET_FLAG('PRINT_LEGACY_STARS')");
    let originalType = rti;
    t$3612$ = (t$3612 = dart_rti.Rti._getCachedRuntimeType(originalType), t$3612 == null ? null : t$3612[_rti$]);
    return t$3612$ == null ? dart_rti._createAndCacheRuntimeType(originalType)[_rti$] : t$3612$;
  };
  dart_rti.pairwiseIsTest = function pairwiseIsTest(fieldRtis, values) {
    let length = values[$length];
    for (let i = 0; i < length; i = i + 1) {
      if (!fieldRtis[$_get](i)[_is](values[$_get](i))) return false;
    }
    return true;
  };
  dart_rti.getFunctionParametersForDynamicChecks = function getFunctionParametersForDynamicChecks(rti) {
    let functionRti = rti;
    let probe = dart_rti.Rti._getDynamicCheckData(functionRti);
    if (probe != null) return probe;
    let parameters = dart_rti.Rti._getFunctionParameters(functionRti);
    let requiredNamed = {};
    let optionalNamed = {};
    let allNamed = dart_rti._FunctionParameters._getNamed(parameters);
    for (let i = 0; i < allNamed[$length]; i = i + 3) {
      let name = allNamed[$_get](i);
      let required = allNamed[$_get](i + 1);
      let type = allNamed[$_get](i + 2);
      dart_rti._Utils.objectAssign(dart.dtest(required) ? requiredNamed : optionalNamed, {[name]: type});
    }
    let parameterInfo = {requiredPositional: dart_rti._FunctionParameters._getRequiredPositional(parameters), optionalPositional: dart_rti._FunctionParameters._getOptionalPositional(parameters), requiredNamed: requiredNamed, optionalNamed: optionalNamed};
    dart_rti.Rti._setDynamicCheckData(functionRti, parameterInfo);
    return parameterInfo;
  };
  dart_rti.isGenericFunctionType = function isGenericFunctionType(rti) {
    return dart_rti.Rti._getKind(rti) === 13;
  };
  dart_rti.getGenericFunctionBounds = function getGenericFunctionBounds(rti) {
    return dart_rti.Rti._getGenericFunctionBounds(rti);
  };
  dart_rti._theUniverse = function _theUniverse() {
    return dart.typeUniverse;
  };
  dart_rti._rtiEval = function _rtiEval(environment, recipe) {
    return dart_rti._Universe.evalInEnvironment(dart.typeUniverse, environment, recipe);
  };
  dart_rti._rtiBind1 = function _rtiBind1(environment, types) {
    return dart_rti._Universe.bind1(dart.typeUniverse, environment, types);
  };
  dart_rti._rtiBind = function _rtiBind(environment, types) {
    return dart_rti._Universe.bind(dart.typeUniverse, environment, types);
  };
  dart_rti.findType = function findType(recipe) {
    return dart_rti._Universe.eval(dart.typeUniverse, recipe, false);
  };
  dart_rti.evalInInstance = function evalInInstance(instance, recipe) {
    return dart_rti._Universe.evalInEnvironment(dart.typeUniverse, dart_rti.instanceType(instance), recipe);
  };
  dart_rti.instantiatedGenericFunctionType = function instantiatedGenericFunctionType(genericFunctionRti, instantiationRti) {
    if (genericFunctionRti == null) return null;
    let bounds = dart_rti.Rti._getGenericFunctionBounds(genericFunctionRti);
    let typeArguments = dart_rti.Rti._getBindingArguments(instantiationRti);
    if (!(bounds.length === typeArguments.length)) dart.assertFailed(null, I[21], 592, 10, "_Utils.arrayLength(bounds) == _Utils.arrayLength(typeArguments)");
    let cache = dart_rti.Rti._getBindCache(genericFunctionRti);
    if (cache == null) {
      cache = new Map();
      dart_rti.Rti._setBindCache(genericFunctionRti, cache);
    }
    let key = dart_rti.Rti._getCanonicalRecipe(instantiationRti);
    let probe = cache.get(key);
    if (probe != null) return probe;
    let rti = dart_rti._substitute(dart.typeUniverse, dart_rti.Rti._getGenericFunctionBase(genericFunctionRti), typeArguments, 0);
    dart_rti._Utils.mapSet(cache, key, rti);
    return rti;
  };
  dart_rti.substitute = function substitute(rti, typeArguments) {
    return dart_rti._substitute(dart.typeUniverse, rti, typeArguments, 0);
  };
  dart_rti.bindingRtiFromList = function bindingRtiFromList(rtis) {
    let binding = dart_rti._Universe.evalInEnvironment(dart.typeUniverse, rtis[$_get](0), "@<0>");
    for (let i = 1; i < rtis[$length]; i = i + 1) {
      binding = dart_rti._Universe.bind(dart.typeUniverse, binding, rtis[$_get](i));
    }
    return binding;
  };
  dart_rti._substitute = function _substitute(universe, rti, typeArguments, depth) {
    let kind = dart_rti.Rti._getKind(rti);
    switch (kind) {
      case 5:
      case 1:
      case 2:
      case 3:
      case 4:
        {
          return rti;
        }
      case 6:
        {
          let baseType = dart_rti.Rti._getPrimary(rti);
          let substitutedBaseType = dart_rti._substitute(universe, baseType, typeArguments, depth);
          if (substitutedBaseType === baseType) return rti;
          return dart_rti._Universe._lookupStarRti(universe, substitutedBaseType, true);
        }
      case 7:
        {
          let baseType = dart_rti.Rti._getPrimary(rti);
          let substitutedBaseType = dart_rti._substitute(universe, baseType, typeArguments, depth);
          if (substitutedBaseType === baseType) return rti;
          return dart_rti._Universe._lookupQuestionRti(universe, substitutedBaseType, true);
        }
      case 8:
        {
          let baseType = dart_rti.Rti._getPrimary(rti);
          let substitutedBaseType = dart_rti._substitute(universe, baseType, typeArguments, depth);
          if (substitutedBaseType === baseType) return rti;
          return dart_rti._Universe._lookupFutureOrRti(universe, substitutedBaseType, true);
        }
      case 9:
        {
          let interfaceTypeArguments = dart_rti.Rti._getInterfaceTypeArguments(rti);
          let substitutedInterfaceTypeArguments = dart_rti._substituteArray(universe, interfaceTypeArguments, typeArguments, depth);
          if (substitutedInterfaceTypeArguments === interfaceTypeArguments) return rti;
          return dart_rti._Universe._lookupInterfaceRti(universe, dart_rti.Rti._getInterfaceName(rti), substitutedInterfaceTypeArguments);
        }
      case 10:
        {
          let base = dart_rti.Rti._getBindingBase(rti);
          let substitutedBase = dart_rti._substitute(universe, base, typeArguments, depth);
          let $arguments = dart_rti.Rti._getBindingArguments(rti);
          let substitutedArguments = dart_rti._substituteArray(universe, $arguments, typeArguments, depth);
          if (substitutedBase === base && substitutedArguments === $arguments) return rti;
          return dart_rti._Universe._lookupBindingRti(universe, substitutedBase, substitutedArguments);
        }
      case 11:
        {
          let tag = dart_rti.Rti._getRecordPartialShapeTag(rti);
          let fields = dart_rti.Rti._getRecordFields(rti);
          let substitutedFields = dart_rti._substituteArray(universe, fields, typeArguments, depth);
          if (substitutedFields === fields) return rti;
          return dart_rti._Universe._lookupRecordRti(universe, tag, substitutedFields);
        }
      case 12:
        {
          let returnType = dart_rti.Rti._getReturnType(rti);
          let substitutedReturnType = dart_rti._substitute(universe, returnType, typeArguments, depth);
          let functionParameters = dart_rti.Rti._getFunctionParameters(rti);
          let substitutedFunctionParameters = dart_rti._substituteFunctionParameters(universe, functionParameters, typeArguments, depth);
          if (substitutedReturnType === returnType && substitutedFunctionParameters === functionParameters) return rti;
          return dart_rti._Universe._lookupFunctionRti(universe, substitutedReturnType, substitutedFunctionParameters);
        }
      case 13:
        {
          let bounds = dart_rti.Rti._getGenericFunctionBounds(rti);
          depth = depth + bounds.length;
          let substitutedBounds = dart_rti._substituteArray(universe, bounds, typeArguments, depth);
          let base = dart_rti.Rti._getGenericFunctionBase(rti);
          let substitutedBase = dart_rti._substitute(universe, base, typeArguments, depth);
          if (substitutedBounds === bounds && substitutedBase === base) return rti;
          return dart_rti._Universe._lookupGenericFunctionRti(universe, substitutedBase, substitutedBounds, true);
        }
      case 14:
        {
          let index = dart_rti.Rti._getGenericFunctionParameterIndex(rti);
          if (index < depth) return rti;
          let argument = typeArguments[index - depth];
          if (argument == null) return rti;
          return argument;
        }
      default:
        {
          dart.throw(new core.AssertionError.new("Attempted to substitute unexpected RTI kind " + dart.strSafe(kind)));
        }
    }
  };
  dart_rti._substituteArray = function _substituteArray(universe, rtiArray, typeArguments, depth) {
    let changed = false;
    let length = rtiArray.length;
    let result = dart_rti._Utils.newArrayOrEmpty(length);
    for (let i = 0; i < length; i = i + 1) {
      let rti = rtiArray[i];
      let substitutedRti = dart_rti._substitute(universe, rti, typeArguments, depth);
      if (substitutedRti !== rti) {
        changed = true;
      }
      dart_rti._Utils.arraySetAt(result, i, substitutedRti);
    }
    return changed ? result : rtiArray;
  };
  dart_rti._substituteNamed = function _substituteNamed(universe, namedArray, typeArguments, depth) {
    let changed = false;
    let length = namedArray.length;
    if (!(length % 3 === 0)) dart.assertFailed(null, I[21], 751, 10, "_Utils.isMultipleOf(length, 3)");
    let result = dart_rti._Utils.newArrayOrEmpty(length);
    for (let i = 0; i < length; i = i + 3) {
      let name = namedArray[i];
      let isRequired = namedArray[i + 1];
      let rti = namedArray[i + 2];
      let substitutedRti = dart_rti._substitute(universe, rti, typeArguments, depth);
      if (substitutedRti !== rti) {
        changed = true;
      }
      result.splice(i, 3, name, isRequired, substitutedRti);
    }
    return changed ? result : namedArray;
  };
  dart_rti._substituteFunctionParameters = function _substituteFunctionParameters(universe, functionParameters, typeArguments, depth) {
    let requiredPositional = dart_rti._FunctionParameters._getRequiredPositional(functionParameters);
    let substitutedRequiredPositional = dart_rti._substituteArray(universe, requiredPositional, typeArguments, depth);
    let optionalPositional = dart_rti._FunctionParameters._getOptionalPositional(functionParameters);
    let substitutedOptionalPositional = dart_rti._substituteArray(universe, optionalPositional, typeArguments, depth);
    let named = dart_rti._FunctionParameters._getNamed(functionParameters);
    let substitutedNamed = dart_rti._substituteNamed(universe, named, typeArguments, depth);
    if (substitutedRequiredPositional === requiredPositional && substitutedOptionalPositional === optionalPositional && substitutedNamed === named) return functionParameters;
    let result = dart_rti._FunctionParameters.allocate();
    dart_rti._FunctionParameters._setRequiredPositional(result, substitutedRequiredPositional);
    dart_rti._FunctionParameters._setOptionalPositional(result, substitutedOptionalPositional);
    dart_rti._FunctionParameters._setNamed(result, substitutedNamed);
    return result;
  };
  dart_rti._isDartObject = function _isDartObject(object) {
    return object instanceof core.Object;
  };
  dart_rti._isClosure = function _isClosure(object) {
    return object instanceof Function;
  };
  dart_rti._setArrayType = function _setArrayType(target, rti) {
    if (!(rti != null)) dart.assertFailed(null, I[21], 805, 10, "rti != null");
    let rtiProperty = $arrayRti;
    target[rtiProperty] = rti;
    return target;
  };
  dart_rti.closureFunctionType = function closureFunctionType(closure) {
    let signatureName = dart._functionRti;
    let signature = closure[signatureName];
    if (signature != null) {
      if (typeof signature == "number") {
        return dart_rti.getTypeFromTypesTable(signature);
      }
      {
        return signature;
      }
    }
    return null;
  };
  dart_rti.instanceOrFunctionType = function instanceOrFunctionType(object, testRti) {
    if (dart_rti.Rti._isUnionOfFunctionType(testRti)) {
      if (object instanceof Function) {
        let rti = dart_rti.closureFunctionType(object);
        if (rti != null) return rti;
      }
    }
    return dart_rti.instanceType(object);
  };
  dart_rti.instanceType = function instanceType(object) {
    if (object instanceof core.Object) {
      return dart_rti._instanceType(object);
    }
    if (Array.isArray(object)) {
      return dart_rti._arrayInstanceType(object);
    }
    let interceptor = dart.getInterceptorForRti(object);
    return dart_rti._instanceTypeFromConstructor(interceptor);
  };
  dart_rti._arrayInstanceType = function _arrayInstanceType(object) {
    let rti = object[$arrayRti];
    let defaultRti = _foreign_helper.getJSArrayInteropRti();
    if (rti == null) return defaultRti;
    if (rti.constructor !== defaultRti.constructor) {
      return defaultRti;
    }
    return rti;
  };
  dart_rti._instanceType = function _instanceType(object) {
    let rti = object.$ti;
    return rti != null ? rti : dart_rti._instanceTypeFromConstructor(object);
  };
  dart_rti.instanceTypeName = function instanceTypeName(object) {
    let rti = dart_rti.instanceType(object);
    return dart_rti._rtiToString(rti, null);
  };
  dart_rti._instanceTypeFromConstructor = function _instanceTypeFromConstructor(instance) {
    let constructor = instance.constructor;
    let probe = constructor.$ccache;
    if (probe != null) return probe;
    return dart_rti._instanceTypeFromConstructorMiss(instance, constructor);
  };
  dart_rti._instanceTypeFromConstructorMiss = function _instanceTypeFromConstructorMiss(instance, constructor) {
    let rti = null;
    {
      rti = dart_rti._Universe.eval(dart.typeUniverse, constructor.$interfaceRecipe, false);
    }
    constructor.$ccache = rti;
    return rti;
  };
  dart_rti._instanceFunctionType = function _instanceFunctionType(object) {
    return object instanceof Function ? dart_rti.closureFunctionType(object) : null;
  };
  dart_rti.getTypeFromTypesTable = function getTypeFromTypesTable(index) {
    let table = dart.types;
    let type = table[index];
    if (typeof type == "string") {
      let rti = dart_rti._Universe.eval(dart.typeUniverse, type, false);
      dart_rti._Utils.arraySetAt(table, index, rti);
      return rti;
    }
    return type;
  };
  dart_rti.getRuntimeTypeOfDartObject = function getRuntimeTypeOfDartObject(object) {
    let rti = dart_rti._instanceType(object);
    return dart_rti.createRuntimeType(rti);
  };
  dart_rti.getRuntimeTypeOfArray = function getRuntimeTypeOfArray(array) {
    let rti = dart_rti._getRuntimeTypeOfArrayAsRti(array);
    return dart_rti.createRuntimeType(rti);
  };
  dart_rti._getRuntimeTypeOfArrayAsRti = function _getRuntimeTypeOfArrayAsRti(array) {
    let rti = dart_rti._arrayInstanceType(array);
    return rti;
  };
  dart_rti.getRuntimeTypeOfClosure = function getRuntimeTypeOfClosure(closure) {
    let t$3612;
    let rti = (t$3612 = dart_rti.closureFunctionType(closure), t$3612 == null ? dart_rti.instanceType(closure) : t$3612);
    return dart_rti.createRuntimeType(rti);
  };
  dart_rti.getRuntimeTypeOfInterceptorNotArray = function getRuntimeTypeOfInterceptorNotArray(interceptor, object) {
    let rti = dart_rti._instanceTypeFromConstructor(interceptor);
    return dart_rti.createRuntimeType(rti);
  };
  dart_rti.getRuntimeTypeOfRecord = function getRuntimeTypeOfRecord(record) {
    let recordRti = _js_helper.getRtiForRecord(record);
    return dart_rti.createRuntimeType(recordRti);
  };
  dart_rti._structuralTypeOf = function _structuralTypeOf(object) {
    if (T$.Record()[_is](object)) return _js_helper.getRtiForRecord(object);
    let functionRti = dart_rti._instanceFunctionType(object);
    if (functionRti != null) return functionRti;
    if (T$.TrustedGetRuntimeType()[_is](object)) {
      let type = dart.runtimeType(object);
      return type[_rti$];
    }
    if (Array.isArray(object)) return dart_rti._getRuntimeTypeOfArrayAsRti(object);
    return dart_rti.instanceType(object);
  };
  dart_rti.createRuntimeType = function createRuntimeType(rti) {
    let t$3612;
    t$3612 = dart_rti.Rti._getCachedRuntimeType(rti);
    return t$3612 == null ? dart_rti._createAndCacheRuntimeType(rti) : t$3612;
  };
  dart_rti._createAndCacheRuntimeType = function _createAndCacheRuntimeType(rti) {
    let type = dart_rti._createRuntimeType(rti);
    dart_rti.Rti._setCachedRuntimeType(rti, type);
    return type;
  };
  dart_rti._createRuntimeType = function _createRuntimeType(rti) {
    let t$3612;
    ;
    let recipe = dart_rti.Rti._getCanonicalRecipe(rti);
    let starErasedRecipe = dart_rti.Rti.getLegacyErasedRecipe(rti);
    if (starErasedRecipe === recipe) {
      return new dart_rti._Type.new(rti);
    }
    let starErasedRti = dart_rti._Universe.eval(dart.typeUniverse, starErasedRecipe, true);
    t$3612 = dart_rti.Rti._getCachedRuntimeType(starErasedRti);
    return t$3612 == null ? dart_rti._createAndCacheRuntimeType(starErasedRti) : t$3612;
  };
  dart_rti.evaluateRtiForRecord = function evaluateRtiForRecord(recordRecipe, valuesList) {
    let values = valuesList;
    let length = values[$length];
    if (length === 0) return T$.RecOf();
    let bindings = dart_rti._Universe.evalInEnvironment(dart.typeUniverse, dart_rti._structuralTypeOf(values[$_get](0)), "@<0>");
    for (let i = 1; i < length; i = i + 1) {
      bindings = dart_rti._Universe.bind(dart.typeUniverse, bindings, dart_rti._structuralTypeOf(values[$_get](i)));
    }
    return dart_rti._Universe.evalInEnvironment(dart.typeUniverse, bindings, recordRecipe);
  };
  dart_rti.typeLiteral = function typeLiteral(recipe) {
    return dart_rti.createRuntimeType(dart_rti._Universe.eval(dart.typeUniverse, recipe, false));
  };
  dart_rti._getTypeRti = function _getTypeRti(type) {
    return type[_rti$];
  };
  dart_rti.isRecordType = function isRecordType(type) {
    return dart_rti.Rti._getKind(dart_rti._getTypeRti(type)) === 11;
  };
  dart_rti.getRecordTypeElementTypes = function getRecordTypeElementTypes(type) {
    let typeRti = dart_rti._getTypeRti(type);
    if (!(dart_rti.Rti._getKind(typeRti) === 11)) dart.assertFailed(null, I[21], 1125, 10, "Rti._getKind(typeRti) == Rti.kindRecord");
    let fieldRtis = dart_rti.Rti._getRecordFields(typeRti);
    let fieldTypes = G.JSArrayOfType().of([]);
    for (let fieldRti of fieldRtis) {
      fieldTypes[$add](dart_rti.createRuntimeType(fieldRti));
    }
    return fieldTypes;
  };
  dart_rti.getRecordTypeShapeKey = function getRecordTypeShapeKey(type) {
    let typeRti = dart_rti._getTypeRti(type);
    if (!(dart_rti.Rti._getKind(typeRti) === 11)) dart.assertFailed(null, I[21], 1137, 10, "Rti._getKind(typeRti) == Rti.kindRecord");
    let partialShapeTag = dart_rti.Rti._getRecordPartialShapeTag(typeRti);
    let fieldRtis = dart_rti.Rti._getRecordFields(typeRti);
    let length = fieldRtis[$length];
    return dart.strSafe(length) + ";" + partialShapeTag;
  };
  dart_rti._installSpecializedIsTest = function _installSpecializedIsTest(object) {
    let testRti = this;
    if (testRti === T$.Object()) {
      return dart_rti._finishIsFn(testRti, object, dart_rti._isObject);
    }
    if (dart_rti.isDefinitelyTopType(testRti)) {
      return dart_rti._finishIsFn(testRti, object, dart_rti._isTop);
    }
    if (dart_rti.Rti._getKind(testRti) === 7) {
      return dart_rti._finishIsFn(testRti, object, dart_rti._generalNullableIsTestImplementation);
    }
    if (dart_rti.Rti._getKind(testRti) === 1) {
      return dart_rti._finishIsFn(testRti, object, dart_rti._isNever);
    }
    let unstarred = dart_rti.Rti._unstar(testRti);
    let unstarredKind = dart_rti.Rti._getKind(unstarred);
    if (unstarredKind === 8) {
      return dart_rti._finishIsFn(testRti, object, dart_rti._isFutureOr);
    }
    let isFn = dart_rti._simpleSpecializedIsTest(unstarred);
    if (isFn != null) {
      return dart_rti._finishIsFn(testRti, object, isFn);
    }
    if (unstarredKind === 9) {
      let name = dart_rti.Rti._getInterfaceName(unstarred);
      let $arguments = dart_rti.Rti._getInterfaceTypeArguments(unstarred);
      if ($arguments.every(dart_rti.isDefinitelyTopType)) {
        let propertyName = _js_names.getSpecializedTestTag(name);
        dart_rti.Rti._setSpecializedTestResource(testRti, propertyName);
        if (name === "core|List") {
          return dart_rti._finishIsFn(testRti, object, dart_rti._isListTestViaProperty);
        }
        return dart_rti._finishIsFn(testRti, object, dart_rti._isTestViaProperty);
      }
    } else if (unstarredKind === 11) {
      isFn = dart_rti._recordSpecializedIsTest(unstarred);
      return dart_rti._finishIsFn(testRti, object, isFn);
    }
    return dart_rti._finishIsFn(testRti, object, dart_rti._generalIsTestImplementation);
  };
  dart_rti._finishIsFn = function _finishIsFn(testRti, object, isFn) {
    dart_rti.Rti._setIsTestFunction(testRti, isFn);
    return testRti[_is](object);
  };
  dart_rti._simpleSpecializedIsTest = function _simpleSpecializedIsTest(testRti) {
    let isFn = null;
    if (testRti === T$.int()) {
      isFn = dart_rti._isInt;
    } else if (testRti === T$.double() || testRti === T$.num()) {
      isFn = dart_rti._isNum;
    } else if (testRti === T$.String()) {
      isFn = dart_rti._isString;
    } else if (testRti === T$.bool()) {
      isFn = dart_rti._isBool;
    }
    return isFn;
  };
  dart_rti._recordSpecializedIsTest = function _recordSpecializedIsTest(testRti) {
    let t$3612;
    let partialShapeTag = dart_rti.Rti._getRecordPartialShapeTag(testRti);
    let fieldRtis = dart_rti.Rti._getRecordFields(testRti);
    let predicate = _js_helper.createRecordTypePredicate(partialShapeTag, fieldRtis);
    t$3612 = predicate;
    return t$3612 == null ? dart_rti._isNever : t$3612;
  };
  dart_rti._installSpecializedAsCheck = function _installSpecializedAsCheck(object) {
    let testRti = this;
    let asFn = dart_rti._generalAsCheckImplementation;
    if (dart_rti.isDefinitelyTopType(testRti)) {
      asFn = dart_rti._asTop;
    } else if (testRti === T$.Object()) {
      asFn = dart_rti._asObject;
    } else if (dart.legacyTypeChecks && !dart.extraNullSafetyChecks || dart_rti.isNullable(testRti)) {
      asFn = dart_rti._generalNullableAsCheckImplementation;
    }
    dart_rti.Rti._setAsCheckFunction(testRti, asFn);
    return testRti[_as](object);
  };
  dart_rti._nullIs = function _nullIs(testRti) {
    let kind = dart_rti.Rti._getKind(testRti);
    return dart_rti.isSoundTopType(testRti) || testRti === T$.ObjectL() || testRti === T$.NeverL() || kind === 7 || kind === 6 && dart_rti._nullIs(dart_rti.Rti._getStarArgument(testRti)) || kind === 8 && dart_rti._nullIs(dart_rti.Rti._getFutureOrArgument(testRti)) || dart_rti.isNullType(testRti);
  };
  dart_rti._generalIsTestImplementation = function _generalIsTestImplementation(object) {
    let testRti = this;
    if (object == null) return dart_rti._nullIs(testRti);
    let objectRti = dart_rti.instanceOrFunctionType(object, testRti);
    return dart_rti.isSubtype(dart.typeUniverse, objectRti, testRti);
  };
  dart_rti._generalNullableIsTestImplementation = function _generalNullableIsTestImplementation(object) {
    if (object == null) return true;
    let testRti = this;
    let baseRti = dart_rti.Rti._getQuestionArgument(testRti);
    return baseRti[_is](object);
  };
  dart_rti._isTestViaProperty = function _isTestViaProperty(object) {
    let testRti = this;
    if (object == null) return dart_rti._nullIs(testRti);
    let tag = dart_rti.Rti._getSpecializedTestResource(testRti);
    if (object instanceof core.Object) {
      return !!object[tag];
    }
    let interceptor = dart.getInterceptorForRti(object);
    return !!interceptor[tag];
  };
  dart_rti._isListTestViaProperty = function _isListTestViaProperty(object) {
    let testRti = this;
    if (object == null) return dart_rti._nullIs(testRti);
    if (typeof object != "object") return false;
    if (Array.isArray(object)) return true;
    let tag = dart_rti.Rti._getSpecializedTestResource(testRti);
    if (object instanceof core.Object) {
      return !!object[tag];
    }
    let interceptor = dart.getInterceptorForRti(object);
    return !!interceptor[tag];
  };
  dart_rti._generalAsCheckImplementation = function _generalAsCheckImplementation(object) {
    let testRti = this;
    if (object == null) {
      if (dart_rti.isNullable(testRti)) {
        return object;
      }
      if (dart.legacyTypeChecks) {
        if (dart.extraNullSafetyChecks) {
          dart_rti._onExtraNullSafetyError(dart_rti._failedAsCheckError(object, testRti), core.StackTrace.current);
        }
        return object;
      }
    } else if (testRti[_is](object)) return object;
    dart_rti._failedAsCheck(object, testRti);
    dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
  };
  dart_rti._generalNullableAsCheckImplementation = function _generalNullableAsCheckImplementation(object) {
    let testRti = this;
    if (object == null) {
      return object;
    } else if (testRti[_is](object)) return object;
    dart_rti._failedAsCheck(object, testRti);
    dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
  };
  dart_rti._failedAsCheckError = function _failedAsCheckError(object, testRti) {
    let message = dart_rti._Error.compose(object, dart_rti._rtiToString(testRti, null));
    return new dart_rti._TypeError.fromMessage(message);
  };
  dart_rti._failedAsCheck = function _failedAsCheck(object, testRti) {
    dart.throw(dart_rti._failedAsCheckError(object, testRti));
  };
  dart_rti.checkTypeBound = function checkTypeBound$(type, bound, variable, methodName) {
    if (dart_rti.isSubtype(dart.typeUniverse, type, bound)) return type;
    let message = "The type argument '" + dart_rti._rtiToString(type, null) + "' is not" + " a subtype of the type variable bound '" + dart_rti._rtiToString(bound, null) + "'" + " of type variable '" + variable + "' in '" + methodName + "'.";
    dart.throw(new dart_rti._TypeError.fromMessage(message));
  };
  dart_rti.throwTypeError = function throwTypeError$(message) {
    dart.throw(new dart_rti._TypeError.fromMessage(message));
  };
  dart_rti._isFutureOr = function _isFutureOr(object) {
    let testRti = this;
    let unstarred = dart_rti.Rti._unstar(testRti);
    return dart_rti.Rti._getFutureOrArgument(unstarred)[_is](object) || dart_rti.Rti._getFutureFromFutureOr(dart.typeUniverse, unstarred)[_is](object);
  };
  dart_rti._isObject = function _isObject(object) {
    return object != null;
  };
  dart_rti._asObject = function _asObject(object) {
    if (object != null) return object;
    if (dart.legacyTypeChecks) {
      if (dart.extraNullSafetyChecks) {
        dart_rti._onExtraNullSafetyError(dart_rti._TypeError.forType(object, "Object"), core.StackTrace.current);
      }
      return object;
    }
    dart.throw(dart_rti._TypeError.forType(object, "Object"));
  };
  dart_rti._isTop = function _isTop(object) {
    return true;
  };
  dart_rti._asTop = function _asTop(object) {
    return object;
  };
  dart_rti._isNever = function _isNever(object) {
    return false;
  };
  dart_rti._isBool = function _isBool(object) {
    return true === object || false === object;
  };
  dart_rti._asBool = function _asBool(object) {
    if (true === object) return true;
    if (false === object) return false;
    dart.throw(dart_rti._TypeError.forType(object, "bool"));
  };
  dart_rti._asBoolS = function _asBoolS(object) {
    if (true === object) return true;
    if (false === object) return false;
    if (object == null) {
      if (dart.extraNullSafetyChecks) {
        dart_rti._onExtraNullSafetyError(dart_rti._TypeError.forType(object, "bool"), core.StackTrace.current);
      }
      return object;
    }
    dart.throw(dart_rti._TypeError.forType(object, "bool"));
  };
  dart_rti._asBoolQ = function _asBoolQ(object) {
    if (true === object) return true;
    if (false === object) return false;
    if (object == null) return object;
    dart.throw(dart_rti._TypeError.forType(object, "bool?"));
  };
  dart_rti._asDouble = function _asDouble(object) {
    if (typeof object == "number") return object;
    dart.throw(dart_rti._TypeError.forType(object, "double"));
  };
  dart_rti._asDoubleS = function _asDoubleS(object) {
    if (typeof object == "number") return object;
    if (object == null) {
      if (dart.extraNullSafetyChecks) {
        dart_rti._onExtraNullSafetyError(dart_rti._TypeError.forType(object, "double"), core.StackTrace.current);
      }
      return object;
    }
    dart.throw(dart_rti._TypeError.forType(object, "double"));
  };
  dart_rti._asDoubleQ = function _asDoubleQ(object) {
    if (typeof object == "number") return object;
    if (object == null) return object;
    dart.throw(dart_rti._TypeError.forType(object, "double?"));
  };
  dart_rti._isInt = function _isInt(object) {
    return typeof object == "number" && Math.floor(object) === object;
  };
  dart_rti._asInt = function _asInt(object) {
    if (dart_rti._isInt(object)) return object;
    dart.throw(dart_rti._TypeError.forType(object, "int"));
  };
  dart_rti._asIntS = function _asIntS(object) {
    if (dart_rti._isInt(object)) return object;
    if (object == null) {
      if (dart.extraNullSafetyChecks) {
        dart_rti._onExtraNullSafetyError(dart_rti._TypeError.forType(object, "int"), core.StackTrace.current);
      }
      return object;
    }
    dart.throw(dart_rti._TypeError.forType(object, "int"));
  };
  dart_rti._asIntQ = function _asIntQ(object) {
    if (dart_rti._isInt(object)) return object;
    if (object == null) return object;
    dart.throw(dart_rti._TypeError.forType(object, "int?"));
  };
  dart_rti._isNum = function _isNum(object) {
    return typeof object == "number";
  };
  dart_rti._asNum = function _asNum(object) {
    if (typeof object == "number") return object;
    dart.throw(dart_rti._TypeError.forType(object, "num"));
  };
  dart_rti._asNumS = function _asNumS(object) {
    if (typeof object == "number") return object;
    if (object == null) {
      if (dart.extraNullSafetyChecks) {
        dart_rti._onExtraNullSafetyError(dart_rti._TypeError.forType(object, "num"), core.StackTrace.current);
      }
      return object;
    }
    dart.throw(dart_rti._TypeError.forType(object, "num"));
  };
  dart_rti._asNumQ = function _asNumQ(object) {
    if (typeof object == "number") return object;
    if (object == null) return object;
    dart.throw(dart_rti._TypeError.forType(object, "num?"));
  };
  dart_rti._isString = function _isString(object) {
    return typeof object == "string";
  };
  dart_rti._asString = function _asString(object) {
    if (typeof object == "string") return object;
    dart.throw(dart_rti._TypeError.forType(object, "String"));
  };
  dart_rti._asStringS = function _asStringS(object) {
    if (typeof object == "string") return object;
    if (object == null) {
      if (dart.extraNullSafetyChecks) {
        dart_rti._onExtraNullSafetyError(dart_rti._TypeError.forType(object, "String"), core.StackTrace.current);
      }
      return object;
    }
    dart.throw(dart_rti._TypeError.forType(object, "String"));
  };
  dart_rti._asStringQ = function _asStringQ(object) {
    if (typeof object == "string") return object;
    if (object == null) return object;
    dart.throw(dart_rti._TypeError.forType(object, "String?"));
  };
  dart_rti._rtiArrayToString = function _rtiArrayToString(array, genericContext) {
    let s = "";
    let sep = "";
    for (let i = 0; i < array.length; i = i + 1) {
      s = s + (sep + dart_rti._rtiToString(array[i], genericContext));
      sep = ", ";
    }
    return s;
  };
  dart_rti._recordRtiToString = function _recordRtiToString(recordType, genericContext) {
    let partialShape = dart_rti.Rti._getRecordPartialShapeTag(recordType);
    let fields = dart_rti.Rti._getRecordFields(recordType);
    if ("" === partialShape) {
      return "(" + dart_rti._rtiArrayToString(fields, genericContext) + ")";
    }
    let fieldCount = fields.length;
    let names = partialShape.split(",");
    let namesIndex = names.length - fieldCount;
    let s = "(";
    let comma = "";
    for (let i = 0; i < fieldCount; i = i + 1) {
      s = s + comma;
      comma = ", ";
      if (namesIndex === 0) s = s + "{";
      s = s + dart_rti._rtiToString(fields[i], genericContext);
      if (namesIndex >= 0) {
        s = s + (" " + names[namesIndex]);
      }
      namesIndex = namesIndex + 1;
    }
    return s + "})";
  };
  dart_rti._functionRtiToString = function _functionRtiToString(functionType, genericContext, opts) {
    let bounds = opts && 'bounds' in opts ? opts.bounds : null;
    let typeParametersText = "";
    let outerContextLength = null;
    if (bounds != null) {
      let boundsLength = bounds.length;
      if (genericContext == null) {
        genericContext = G.JSArrayOfString().of([]);
      } else {
        outerContextLength = genericContext[$length];
      }
      let offset = genericContext[$length];
      for (let i = boundsLength; i > 0; i = i - 1) {
        genericContext[$add]("T" + dart.strSafe(offset + i));
      }
      let typeSep = "";
      typeParametersText = "<";
      for (let i = 0; i < boundsLength; i = i + 1) {
        typeParametersText = typeParametersText + typeSep;
        typeParametersText = typeParametersText + genericContext[$_get](genericContext[$length] - 1 - i);
        let boundRti = bounds[i];
        if (!dart_rti.isDefinitelyTopType(boundRti)) {
          typeParametersText = typeParametersText + (" extends " + dart_rti._rtiToString(boundRti, genericContext));
        }
        typeSep = ", ";
      }
      typeParametersText = typeParametersText + ">";
    }
    let returnType = dart_rti.Rti._getReturnType(functionType);
    let parameters = dart_rti.Rti._getFunctionParameters(functionType);
    let requiredPositional = dart_rti._FunctionParameters._getRequiredPositional(parameters);
    let requiredPositionalLength = requiredPositional.length;
    let optionalPositional = dart_rti._FunctionParameters._getOptionalPositional(parameters);
    let optionalPositionalLength = optionalPositional.length;
    let named = dart_rti._FunctionParameters._getNamed(parameters);
    let namedLength = named.length;
    if (!(optionalPositionalLength === 0 || namedLength === 0)) dart.assertFailed(null, I[21], 1762, 10, "optionalPositionalLength == 0 || namedLength == 0");
    let returnTypeText = dart_rti._rtiToString(returnType, genericContext);
    let argumentsText = "";
    let sep = "";
    for (let i = 0; i < requiredPositionalLength; i = i + 1) {
      argumentsText = argumentsText + (sep + dart_rti._rtiToString(requiredPositional[i], genericContext));
      sep = ", ";
    }
    if (optionalPositionalLength > 0) {
      argumentsText = argumentsText + (sep + "[");
      sep = "";
      for (let i = 0; i < optionalPositionalLength; i = i + 1) {
        argumentsText = argumentsText + (sep + dart_rti._rtiToString(optionalPositional[i], genericContext));
        sep = ", ";
      }
      argumentsText = argumentsText + "]";
    }
    if (namedLength > 0) {
      argumentsText = argumentsText + (sep + "{");
      sep = "";
      for (let i = 0; i < namedLength; i = i + 3) {
        argumentsText = argumentsText + sep;
        if (named[i + 1]) {
          argumentsText = argumentsText + "required ";
        }
        argumentsText = argumentsText + (dart_rti._rtiToString(named[i + 2], genericContext) + " " + named[i]);
        sep = ", ";
      }
      argumentsText = argumentsText + "}";
    }
    if (outerContextLength != null) {
      dart.nullCheck(genericContext).length = outerContextLength;
    }
    return typeParametersText + "(" + argumentsText + ") => " + returnTypeText;
  };
  dart_rti.rtiToString = function rtiToString(rti) {
    return dart_rti._rtiToString(rti, null);
  };
  dart_rti._rtiToString = function _rtiToString(rti, genericContext) {
    let kind = dart_rti.Rti._getKind(rti);
    if (kind === 5) return "erased";
    if (kind === 2) return "dynamic";
    if (kind === 3) return "void";
    if (kind === 1) return "Never";
    if (kind === 4) return "any";
    if (kind === 6) {
      let starArgument = dart_rti.Rti._getStarArgument(rti);
      let s = dart_rti._rtiToString(starArgument, genericContext);
      {
        return s;
      }
    }
    if (kind === 7) {
      let questionArgument = dart_rti.Rti._getQuestionArgument(rti);
      let s = dart_rti._rtiToString(questionArgument, genericContext);
      let argumentKind = dart_rti.Rti._getKind(questionArgument);
      if (argumentKind === 12 || argumentKind === 13) {
        s = "(" + s + ")";
      }
      return s + "?";
    }
    if (kind === 8) {
      let futureOrArgument = dart_rti.Rti._getFutureOrArgument(rti);
      return "FutureOr<" + dart_rti._rtiToString(futureOrArgument, genericContext) + ">";
    }
    if (kind === 9) {
      let name = dart_rti.Rti._getInterfaceName(rti);
      name = dart_rti._unminifyOrTag(name);
      {
        name = name[$substring](name[$indexOf]("|") + 1);
      }
      let $arguments = dart_rti.Rti._getInterfaceTypeArguments(rti);
      if ($arguments[$length] > 0) {
        name = name + ("<" + dart_rti._rtiArrayToString($arguments, genericContext) + ">");
      }
      return name;
    }
    if (kind === 11) {
      return dart_rti._recordRtiToString(rti, genericContext);
    }
    if (kind === 12) {
      return dart_rti._functionRtiToString(rti, genericContext);
    }
    if (kind === 13) {
      let baseFunctionType = dart_rti.Rti._getGenericFunctionBase(rti);
      let bounds = dart_rti.Rti._getGenericFunctionBounds(rti);
      return dart_rti._functionRtiToString(baseFunctionType, genericContext, {bounds: bounds});
    }
    if (kind === 14) {
      let context = dart.nullCheck(genericContext);
      let index = dart_rti.Rti._getGenericFunctionParameterIndex(rti);
      return context[$_get](context[$length] - 1 - index);
    }
    return "?";
  };
  dart_rti._unminifyOrTag = function _unminifyOrTag(rawClassName) {
    let preserved = _js_names.unmangleGlobalNameIfPreservedAnyways(rawClassName);
    if (preserved != null) return preserved;
    return rawClassName;
  };
  dart_rti._rtiArrayToDebugString = function _rtiArrayToDebugString(array) {
    let s = "[";
    let sep = "";
    for (let i = 0; i < array.length; i = i + 1) {
      s = s + (sep + dart_rti._rtiToDebugString(array[i]));
      sep = ", ";
    }
    return s + "]";
  };
  dart_rti.functionParametersToString = function functionParametersToString(parameters) {
    let s = "(";
    let sep = "";
    let requiredPositional = dart_rti._FunctionParameters._getRequiredPositional(parameters);
    let requiredPositionalLength = requiredPositional.length;
    let optionalPositional = dart_rti._FunctionParameters._getOptionalPositional(parameters);
    let optionalPositionalLength = optionalPositional.length;
    let named = dart_rti._FunctionParameters._getNamed(parameters);
    let namedLength = named.length;
    if (!(optionalPositionalLength === 0 || namedLength === 0)) dart.assertFailed(null, I[21], 1932, 10, "optionalPositionalLength == 0 || namedLength == 0");
    for (let i = 0; i < requiredPositionalLength; i = i + 1) {
      s = s + (sep + dart_rti._rtiToDebugString(requiredPositional[i]));
      sep = ", ";
    }
    if (optionalPositionalLength > 0) {
      s = s + (sep + "[");
      sep = "";
      for (let i = 0; i < optionalPositionalLength; i = i + 1) {
        s = s + (sep + dart_rti._rtiToDebugString(optionalPositional[i]));
        sep = ", ";
      }
      s = s + "]";
    }
    if (namedLength > 0) {
      s = s + (sep + "{");
      sep = "";
      for (let i = 0; i < namedLength; i = i + 3) {
        s = s + sep;
        if (named[i + 1]) {
          s = s + "required ";
        }
        s = s + (dart_rti._rtiToDebugString(named[i + 2]) + " " + named[i]);
        sep = ", ";
      }
      s = s + "}";
    }
    return s + ")";
  };
  dart_rti._rtiToDebugString = function _rtiToDebugString(rti) {
    let kind = dart_rti.Rti._getKind(rti);
    if (kind === 5) return "erased";
    if (kind === 2) return "dynamic";
    if (kind === 3) return "void";
    if (kind === 1) return "Never";
    if (kind === 4) return "any";
    if (kind === 6) {
      let starArgument = dart_rti.Rti._getStarArgument(rti);
      return "star(" + dart_rti._rtiToDebugString(starArgument) + ")";
    }
    if (kind === 7) {
      let questionArgument = dart_rti.Rti._getQuestionArgument(rti);
      return "question(" + dart_rti._rtiToDebugString(questionArgument) + ")";
    }
    if (kind === 8) {
      let futureOrArgument = dart_rti.Rti._getFutureOrArgument(rti);
      return "FutureOr(" + dart_rti._rtiToDebugString(futureOrArgument) + ")";
    }
    if (kind === 9) {
      let name = dart_rti.Rti._getInterfaceName(rti);
      let $arguments = dart_rti.Rti._getInterfaceTypeArguments(rti);
      if ($arguments.length === 0) {
        return "interface(\"" + name + "\")";
      } else {
        return "interface(\"" + name + "\", " + dart_rti._rtiArrayToDebugString($arguments) + ")";
      }
    }
    if (kind === 10) {
      let base = dart_rti.Rti._getBindingBase(rti);
      let $arguments = dart_rti.Rti._getBindingArguments(rti);
      return "binding(" + dart_rti._rtiToDebugString(base) + ", " + dart_rti._rtiArrayToDebugString($arguments) + ")";
    }
    if (kind === 11) {
      let tag = dart_rti.Rti._getRecordPartialShapeTag(rti);
      let fields = dart_rti.Rti._getRecordFields(rti);
      return "record([" + tag + "], " + dart_rti._rtiArrayToDebugString(fields) + ")";
    }
    if (kind === 12) {
      let returnType = dart_rti.Rti._getReturnType(rti);
      let parameters = dart_rti.Rti._getFunctionParameters(rti);
      return "function(" + dart_rti._rtiToDebugString(returnType) + ", " + dart_rti.functionParametersToString(parameters) + ")";
    }
    if (kind === 13) {
      let baseFunctionType = dart_rti.Rti._getGenericFunctionBase(rti);
      let bounds = dart_rti.Rti._getGenericFunctionBounds(rti);
      return "genericFunction(" + dart_rti._rtiToDebugString(baseFunctionType) + ", " + dart_rti._rtiArrayToDebugString(bounds) + ")";
    }
    if (kind === 14) {
      let index = dart_rti.Rti._getGenericFunctionParameterIndex(rti);
      return "genericFunctionParameter(" + dart.strSafe(index) + ")";
    }
    return "other(kind=" + dart.strSafe(kind) + ")";
  };
  dart_rti.isSubtype = function isSubtype(universe, s, t) {
    let sCache = dart_rti.Rti._getIsSubtypeCache(s);
    let result = sCache.get(t);
    if (result == null) {
      result = dart_rti._isSubtypeUncached(universe, s, t);
      dart_rti._Utils.mapSet(sCache, t, result);
    }
    if (0 === result) return false;
    if (1 === result) return true;
    if (dart.extraNullSafetyChecks) {
      dart_rti._onExtraNullSafetyError(new dart_rti._InconsistentSubtypingError._forTypes(s, t), core.StackTrace.current);
    }
    return true;
  };
  dart_rti._isSubtypeUncached = function _isSubtypeUncached(universe, s, t) {
    if (dart.legacyTypeChecks && dart.extraNullSafetyChecks) {
      let soundResult = dart_rti._isSubtype(universe, s, null, t, null, false);
      if (soundResult) return 1;
      let legacyResult = dart_rti._isSubtype(universe, s, null, t, null, true);
      if (legacyResult) return 2;
      return 0;
    } else {
      return dart_rti._isSubtype(universe, s, null, t, null, dart.legacyTypeChecks) ? 1 : 0;
    }
  };
  dart_rti._isSubtype = function _isSubtype(universe, s, sEnv, t, tEnv, isLegacy) {
    if (dart.extraNullSafetyChecks && !isLegacy) {
      s = dart_rti.Rti._unstar(s);
      t = dart_rti.Rti._unstar(t);
    }
    if (s === t) return true;
    if (dart_rti.isTopType(t, isLegacy)) return true;
    let sKind = dart_rti.Rti._getKind(s);
    if (sKind === 4) return true;
    if (dart_rti.isSoundTopType(s)) return false;
    if (dart_rti.isBottomType(s, isLegacy)) return true;
    let leftTypeVariable = sKind === 14;
    if (leftTypeVariable) {
      let index = dart_rti.Rti._getGenericFunctionParameterIndex(s);
      let bound = sEnv[index];
      if (dart_rti._isSubtype(universe, bound, sEnv, t, tEnv, isLegacy)) return true;
    }
    let tKind = dart_rti.Rti._getKind(t);
    if (!isLegacy && dart_rti.isNullType(s)) {
      if (tKind === 8) {
        return dart_rti._isSubtype(universe, s, sEnv, dart_rti.Rti._getFutureOrArgument(t), tEnv, isLegacy);
      }
      return dart_rti.isNullType(t) || tKind === 7 || tKind === 6;
    }
    if (!isLegacy && t === T$.Object()) {
      if (sKind === 8) {
        return dart_rti._isSubtype(universe, dart_rti.Rti._getFutureOrArgument(s), sEnv, t, tEnv, isLegacy);
      }
      if (sKind === 6) {
        return dart_rti._isSubtype(universe, dart_rti.Rti._getStarArgument(s), sEnv, t, tEnv, isLegacy);
      }
      return sKind !== 7;
    }
    if (sKind === 6) {
      return dart_rti._isSubtype(universe, dart_rti.Rti._getStarArgument(s), sEnv, t, tEnv, isLegacy);
    }
    if (tKind === 6) {
      return dart_rti._isSubtype(universe, s, sEnv, isLegacy ? dart_rti.Rti._getStarArgument(t) : dart_rti.Rti._getQuestionFromStar(universe, t), tEnv, isLegacy);
    }
    if (sKind === 8) {
      if (!dart_rti._isSubtype(universe, dart_rti.Rti._getFutureOrArgument(s), sEnv, t, tEnv, isLegacy)) {
        return false;
      }
      return dart_rti._isSubtype(universe, dart_rti.Rti._getFutureFromFutureOr(universe, s), sEnv, t, tEnv, isLegacy);
    }
    if (sKind === 7) {
      return (isLegacy || dart_rti._isSubtype(universe, T$.Null(), sEnv, t, tEnv, isLegacy)) && dart_rti._isSubtype(universe, dart_rti.Rti._getQuestionArgument(s), sEnv, t, tEnv, isLegacy);
    }
    if (tKind === 8) {
      if (dart_rti._isSubtype(universe, s, sEnv, dart_rti.Rti._getFutureOrArgument(t), tEnv, isLegacy)) {
        return true;
      }
      return dart_rti._isSubtype(universe, s, sEnv, dart_rti.Rti._getFutureFromFutureOr(universe, t), tEnv, isLegacy);
    }
    if (tKind === 7) {
      return !isLegacy && dart_rti._isSubtype(universe, s, sEnv, T$.Null(), tEnv, isLegacy) || dart_rti._isSubtype(universe, s, sEnv, dart_rti.Rti._getQuestionArgument(t), tEnv, isLegacy);
    }
    if (leftTypeVariable) return false;
    if ((sKind === 12 || sKind === 13) && t === T$.Function()) {
      return true;
    }
    if (sKind === 11 && t === T$.Record()) return true;
    if (tKind === 13) {
      if (s === T$.JavaScriptFunction()) return true;
      if (sKind !== 13) return false;
      let sBounds = dart_rti.Rti._getGenericFunctionBounds(s);
      let tBounds = dart_rti.Rti._getGenericFunctionBounds(t);
      let sLength = sBounds.length;
      let tLength = tBounds.length;
      if (sLength !== tLength) return false;
      sEnv = sEnv == null ? sBounds : sBounds.concat(sEnv);
      tEnv = tEnv == null ? tBounds : tBounds.concat(tEnv);
      for (let i = 0; i < sLength; i = i + 1) {
        let sBound = sBounds[i];
        let tBound = tBounds[i];
        if (!dart_rti._isSubtype(universe, sBound, sEnv, tBound, tEnv, isLegacy) || !dart_rti._isSubtype(universe, tBound, tEnv, sBound, sEnv, isLegacy)) {
          return false;
        }
      }
      return dart_rti._isFunctionSubtype(universe, dart_rti.Rti._getGenericFunctionBase(s), sEnv, dart_rti.Rti._getGenericFunctionBase(t), tEnv, isLegacy);
    }
    if (tKind === 12) {
      if (s === T$.JavaScriptFunction()) return true;
      if (sKind !== 12) return false;
      return dart_rti._isFunctionSubtype(universe, s, sEnv, t, tEnv, isLegacy);
    }
    if (sKind === 9) {
      if (tKind !== 9) return false;
      return dart_rti._isInterfaceSubtype(universe, s, sEnv, t, tEnv, isLegacy);
    }
    if (sKind === 11 && tKind === 11) {
      return dart_rti._isRecordSubtype(universe, s, sEnv, t, tEnv, isLegacy);
    }
    return false;
  };
  dart_rti._isFunctionSubtype = function _isFunctionSubtype(universe, s, sEnv, t, tEnv, isLegacy) {
    if (!(dart_rti.Rti._getKind(s) === 12)) dart.assertFailed(null, I[21], 3528, 10, "Rti._getKind(s) == Rti.kindFunction");
    if (!(dart_rti.Rti._getKind(t) === 12)) dart.assertFailed(null, I[21], 3529, 10, "Rti._getKind(t) == Rti.kindFunction");
    let sReturnType = dart_rti.Rti._getReturnType(s);
    let tReturnType = dart_rti.Rti._getReturnType(t);
    if (!dart_rti._isSubtype(universe, sReturnType, sEnv, tReturnType, tEnv, isLegacy)) {
      return false;
    }
    let sParameters = dart_rti.Rti._getFunctionParameters(s);
    let tParameters = dart_rti.Rti._getFunctionParameters(t);
    let sRequiredPositional = dart_rti._FunctionParameters._getRequiredPositional(sParameters);
    let tRequiredPositional = dart_rti._FunctionParameters._getRequiredPositional(tParameters);
    let sRequiredPositionalLength = sRequiredPositional.length;
    let tRequiredPositionalLength = tRequiredPositional.length;
    if (sRequiredPositionalLength > tRequiredPositionalLength) return false;
    let requiredPositionalDelta = tRequiredPositionalLength - sRequiredPositionalLength;
    let sOptionalPositional = dart_rti._FunctionParameters._getOptionalPositional(sParameters);
    let tOptionalPositional = dart_rti._FunctionParameters._getOptionalPositional(tParameters);
    let sOptionalPositionalLength = sOptionalPositional.length;
    let tOptionalPositionalLength = tOptionalPositional.length;
    if (sRequiredPositionalLength + sOptionalPositionalLength < tRequiredPositionalLength + tOptionalPositionalLength) return false;
    for (let i = 0; i < sRequiredPositionalLength; i = i + 1) {
      let sParameter = sRequiredPositional[i];
      let tParameter = tRequiredPositional[i];
      if (!dart_rti._isSubtype(universe, tParameter, tEnv, sParameter, sEnv, isLegacy)) {
        return false;
      }
    }
    for (let i = 0; i < requiredPositionalDelta; i = i + 1) {
      let sParameter = sOptionalPositional[i];
      let tParameter = tRequiredPositional[sRequiredPositionalLength + i];
      if (!dart_rti._isSubtype(universe, tParameter, tEnv, sParameter, sEnv, isLegacy)) {
        return false;
      }
    }
    for (let i = 0; i < tOptionalPositionalLength; i = i + 1) {
      let sParameter = sOptionalPositional[requiredPositionalDelta + i];
      let tParameter = tOptionalPositional[i];
      if (!dart_rti._isSubtype(universe, tParameter, tEnv, sParameter, sEnv, isLegacy)) {
        return false;
      }
    }
    let sNamed = dart_rti._FunctionParameters._getNamed(sParameters);
    let tNamed = dart_rti._FunctionParameters._getNamed(tParameters);
    let sNamedLength = sNamed.length;
    let tNamedLength = tNamed.length;
    let sIndex = 0;
    for (let tIndex = 0; tIndex < tNamedLength; tIndex = tIndex + 3) {
      let tName = tNamed[tIndex];
      while (true) {
        if (sIndex >= sNamedLength) return false;
        let sName = sNamed[sIndex];
        sIndex = sIndex + 3;
        if (tName < sName) return false;
        let sIsRequired = !isLegacy && sNamed[sIndex - 2];
        if (sName < tName) {
          if (sIsRequired) return false;
          continue;
        }
        let tIsRequired = !isLegacy && tNamed[tIndex + 1];
        if (sIsRequired && !tIsRequired) return false;
        let sType = sNamed[sIndex - 1];
        let tType = tNamed[tIndex + 2];
        if (!dart_rti._isSubtype(universe, tType, tEnv, sType, sEnv, isLegacy)) return false;
        break;
      }
    }
    if (!isLegacy) {
      while (sIndex < sNamedLength) {
        if (sNamed[sIndex + 1]) return false;
        sIndex = sIndex + 3;
      }
    }
    return true;
  };
  dart_rti._isInterfaceSubtype = function _isInterfaceSubtype(universe, s, sEnv, t, tEnv, isLegacy) {
    let sName = dart_rti.Rti._getInterfaceName(s);
    let tName = dart_rti.Rti._getInterfaceName(t);
    while (sName !== tName) {
      let rule = universe.tR[sName];
      if (rule == null) return false;
      if (typeof rule == "string") {
        sName = rule;
        continue;
      }
      let recipes = rule[tName];
      if (recipes == null) return false;
      let length = recipes.length;
      let supertypeArgs = dart_rti._Utils.newArrayOrEmpty(length);
      for (let i = 0; i < length; i = i + 1) {
        let recipe = recipes[i];
        let supertypeArg = dart_rti._Universe.evalInEnvironment(universe, s, recipe);
        dart_rti._Utils.arraySetAt(supertypeArgs, i, supertypeArg);
      }
      let tArgs = dart_rti.Rti._getInterfaceTypeArguments(t);
      return dart_rti._areArgumentsSubtypes(universe, supertypeArgs, null, sEnv, tArgs, tEnv, isLegacy);
    }
    if (!(sName === tName)) dart.assertFailed(null, I[21], 3662, 10, "sName == tName");
    let sArgs = dart_rti.Rti._getInterfaceTypeArguments(s);
    let tArgs = dart_rti.Rti._getInterfaceTypeArguments(t);
    let sVariances = null;
    {
      sVariances = dart_rti._Universe.findTypeParameterVariances(universe, sName);
    }
    return dart_rti._areArgumentsSubtypes(universe, sArgs, sVariances, sEnv, tArgs, tEnv, isLegacy);
  };
  dart_rti._areArgumentsSubtypes = function _areArgumentsSubtypes(universe, sArgs, sVariances, sEnv, tArgs, tEnv, isLegacy) {
    let length = sArgs.length;
    if (!(length === tArgs.length)) dart.assertFailed(null, I[21], 3676, 10, "length == _Utils.arrayLength(tArgs)");
    let hasVariances = sVariances != null;
    {
      if (!(!hasVariances || length === sVariances.length)) dart.assertFailed(null, I[21], 3679, 12, "!hasVariances || length == _Utils.arrayLength(sVariances)");
    }
    for (let i = 0; i < length; i = i + 1) {
      let sArg = sArgs[i];
      let tArg = tArgs[i];
      {
        let sVariance = hasVariances ? sVariances[i] : 0;
        switch (sVariance) {
          case 0:
          case 1:
            {
              if (!dart_rti._isSubtype(universe, sArg, sEnv, tArg, tEnv, isLegacy)) {
                return false;
              }
              break;
            }
          case 2:
            {
              if (!dart_rti._isSubtype(universe, tArg, tEnv, sArg, sEnv, isLegacy)) {
                return false;
              }
              break;
            }
          case 3:
            {
              if (!dart_rti._isSubtype(universe, sArg, sEnv, tArg, tEnv, isLegacy) || !dart_rti._isSubtype(universe, tArg, tEnv, sArg, sEnv, isLegacy)) {
                return false;
              }
              break;
            }
          default:
            {
              dart.throw(new core.StateError.new("Unknown variance given for subtype check: " + dart.strSafe(sVariance)));
            }
        }
      }
    }
    return true;
  };
  dart_rti._isRecordSubtype = function _isRecordSubtype(universe, s, sEnv, t, tEnv, isLegacy) {
    let sFields = dart_rti.Rti._getRecordFields(s);
    let tFields = dart_rti.Rti._getRecordFields(t);
    let sCount = sFields.length;
    let tCount = tFields.length;
    if (sCount !== tCount) return false;
    let sTag = dart_rti.Rti._getRecordPartialShapeTag(s);
    let tTag = dart_rti.Rti._getRecordPartialShapeTag(t);
    if (sTag !== tTag) return false;
    for (let i = 0; i < sCount; i = i + 1) {
      let sField = sFields[i];
      let tField = tFields[i];
      if (!dart_rti._isSubtype(universe, sField, sEnv, tField, tEnv, isLegacy)) {
        return false;
      }
    }
    return true;
  };
  dart_rti.isNullable = function isNullable(t) {
    let kind = dart_rti.Rti._getKind(t);
    return dart_rti.isNullType(t) || dart_rti.isSoundTopType(t) || kind === 7 || kind === 6 && dart_rti.isNullable(dart_rti.Rti._getStarArgument(t)) || kind === 8 && dart_rti.isNullable(dart_rti.Rti._getFutureOrArgument(t));
  };
  dart_rti.isDefinitelyTopType = function isDefinitelyTopType(t) {
    return dart_rti.isTopType(t, dart.legacyTypeChecks && !dart.extraNullSafetyChecks);
  };
  dart_rti.isTopType = function isTopType(t, isLegacy) {
    return dart_rti.isSoundTopType(t) || t === T$.ObjectL() || isLegacy && t === T$.Object();
  };
  dart_rti.isSoundTopType = function isSoundTopType(t) {
    let kind = dart_rti.Rti._getKind(t);
    return kind === 2 || kind === 3 || kind === 4 || kind === 5 || t === T$.ObjectN();
  };
  dart_rti.isBottomType = function isBottomType(t, isLegacy) {
    return dart_rti.Rti._getKind(t) === 1 || isLegacy && dart_rti.isNullType(t);
  };
  dart_rti.isObjectType = function isObjectType(t) {
    return t === T$.Object();
  };
  dart_rti.isLegacyObjectType = function isLegacyObjectType(t) {
    return t === T$.ObjectL();
  };
  dart_rti.isNullableObjectType = function isNullableObjectType(t) {
    return t === T$.ObjectN();
  };
  dart_rti.isNullType = function isNullType(t) {
    return t === T$.Null() || t === T$.JSNull();
  };
  dart_rti.isFunctionType = function isFunctionType(t) {
    return t === T$.Function();
  };
  dart_rti.isJsFunctionType = function isJsFunctionType(t) {
    return t === T$.JavaScriptFunction();
  };
  dart_rti.isRecordInterfaceType = function isRecordInterfaceType(t) {
    return t === T$.Record();
  };
  dart_rti.testingCanonicalRecipe = function testingCanonicalRecipe(rti) {
    return dart_rti.Rti._getCanonicalRecipe(rti);
  };
  dart_rti.testingRtiToString = function testingRtiToString(rti) {
    return dart_rti._rtiToString(rti, null);
  };
  dart_rti.testingRtiToDebugString = function testingRtiToDebugString(rti) {
    return dart_rti._rtiToDebugString(rti);
  };
  dart_rti.testingCreateUniverse = function testingCreateUniverse() {
    return {eC: new Map(), tR: {}, eT: {}, tPV: {}, sEA: []};
  };
  dart_rti.testingAddRules = function testingAddRules(universe, rules) {
    dart_rti._Utils.objectAssign(universe.tR, rules);
  };
  dart_rti.testingAddTypeParameterVariances = function testingAddTypeParameterVariances(universe, variances) {
    dart_rti._Universe.addTypeParameterVariances(universe, variances);
  };
  dart_rti.testingIsSubtype = function testingIsSubtype(universe, rti1, rti2) {
    return dart_rti.isSubtype(universe, rti1, rti2);
  };
  dart_rti.testingUniverseEval = function testingUniverseEval(universe, recipe) {
    return dart_rti._Universe.eval(universe, recipe, true);
  };
  dart_rti.testingUniverseEvalOverride = function testingUniverseEvalOverride(universe, recipe, rti) {
    let cache = universe.eC;
    dart_rti._Utils.mapSet(cache, recipe, rti);
  };
  dart_rti.testingEnvironmentEval = function testingEnvironmentEval(universe, environment, recipe) {
    return dart_rti._Universe.evalInEnvironment(universe, environment, recipe);
  };
  dart_rti.testingEnvironmentBind = function testingEnvironmentBind(universe, environment, $arguments) {
    return dart_rti._Universe.bind(universe, environment, $arguments);
  };
  dart.defineLazy(dart_rti, {
    /*dart_rti.onExtraNullSafetyError*/get onExtraNullSafetyError() {
      return null;
    },
    set onExtraNullSafetyError(value) {},
    /*dart_rti._reportingExtraNullSafetyError*/get _reportingExtraNullSafetyError() {
      return false;
    },
    set _reportingExtraNullSafetyError(value) {},
    /*dart_rti.constructorRtiCachePropertyName*/get constructorRtiCachePropertyName() {
      return "$ccache";
    },
    /*dart_rti.interfaceTypeRecipePropertyName*/get interfaceTypeRecipePropertyName() {
      return "$interfaceRecipe";
    },
    /*dart_rti._subtypeResultFalse*/get _subtypeResultFalse() {
      return 0;
    },
    /*dart_rti._subtypeResultTrue*/get _subtypeResultTrue() {
      return 1;
    },
    /*dart_rti._subtypeResultInconsistent*/get _subtypeResultInconsistent() {
      return 2;
    }
  }, false);
  var name$ = dart.privateName(_debugger, "JsonMLConfig.name");
  _debugger.JsonMLConfig = class JsonMLConfig extends core.Object {
    get name() {
      return this[name$];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[22], 30, 27, "name");
      return new _debugger.JsonMLConfig.new(name);
    }
    toString() {
      return "JsonMLConfig(" + dart.str(this.name) + ")";
    }
  };
  (_debugger.JsonMLConfig.new = function(name) {
    if (name == null) dart.nullFailed(I[22], 30, 27, "name");
    this[name$] = name;
    ;
  }).prototype = _debugger.JsonMLConfig.prototype;
  dart.addRtiResources(_debugger.JsonMLConfig, ["_debugger|JsonMLConfig"]);
  dart.setLibraryUri(_debugger.JsonMLConfig, I[23]);
  dart.setFieldSignature(_debugger.JsonMLConfig, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.JsonMLConfig))));
  dart.setStaticFieldSignature(_debugger.JsonMLConfig, () => ['none', 'skipDart', 'keyToString', 'asClass', 'asObject', 'asMap']);
  dart.defineExtensionMethods(_debugger.JsonMLConfig, ['toString']);
  dart.defineLazy(_debugger.JsonMLConfig, {
    /*_debugger.JsonMLConfig.none*/get none() {
      return C[35] || CT.C35;
    },
    /*_debugger.JsonMLConfig.skipDart*/get skipDart() {
      return C[36] || CT.C36;
    },
    /*_debugger.JsonMLConfig.keyToString*/get keyToString() {
      return C[37] || CT.C37;
    },
    /*_debugger.JsonMLConfig.asClass*/get asClass() {
      return C[38] || CT.C38;
    },
    /*_debugger.JsonMLConfig.asObject*/get asObject() {
      return C[39] || CT.C39;
    },
    /*_debugger.JsonMLConfig.asMap*/get asMap() {
      return C[40] || CT.C40;
    }
  }, false);
  _debugger.JSNative = class JSNative extends core.Object {
    static getProperty(object, name) {
      return object[name];
    }
    static setProperty(object, name, value) {
      return object[name] = value;
    }
    static ['_#new#tearOff']() {
      return new _debugger.JSNative.new();
    }
  };
  (_debugger.JSNative.new = function() {
    ;
  }).prototype = _debugger.JSNative.prototype;
  dart.addRtiResources(_debugger.JSNative, ["_debugger|JSNative"]);
  dart.setStaticMethodSignature(_debugger.JSNative, () => ['getProperty', 'setProperty']);
  dart.setLibraryUri(_debugger.JSNative, I[23]);
  var name$0 = dart.privateName(_debugger, "NameValuePair.name");
  var value$ = dart.privateName(_debugger, "NameValuePair.value");
  var config$ = dart.privateName(_debugger, "NameValuePair.config");
  var hideName$ = dart.privateName(_debugger, "NameValuePair.hideName");
  _debugger.NameValuePair = class NameValuePair extends core.Object {
    get name() {
      return this[name$0];
    }
    set name(value) {
      super.name = value;
    }
    get value() {
      return this[value$];
    }
    set value(value) {
      super.value = value;
    }
    get config() {
      return this[config$];
    }
    set config(value) {
      super.config = value;
    }
    get hideName() {
      return this[hideName$];
    }
    set hideName(value) {
      super.hideName = value;
    }
    static ['_#new#tearOff'](opts) {
      let name = opts && 'name' in opts ? opts.name : "";
      if (name == null) dart.nullFailed(I[22], 184, 13, "name");
      let value = opts && 'value' in opts ? opts.value : null;
      let config = opts && 'config' in opts ? opts.config : C[35] || CT.C35;
      if (config == null) dart.nullFailed(I[22], 186, 12, "config");
      let hideName = opts && 'hideName' in opts ? opts.hideName : false;
      if (hideName == null) dart.nullFailed(I[22], 187, 12, "hideName");
      return new _debugger.NameValuePair.new({name: name, value: value, config: config, hideName: hideName});
    }
    _equals(other) {
      if (other == null) return false;
      if (!T$.NameValuePair()[_is](other)) return false;
      if (dart.test(this.hideName) || dart.test(other.hideName)) return this === other;
      return other.name == this.name;
    }
    get hashCode() {
      return dart.hashCode(this.name);
    }
    get displayName() {
      return dart.test(this.hideName) ? "" : this.name;
    }
  };
  (_debugger.NameValuePair.new = function(opts) {
    let name = opts && 'name' in opts ? opts.name : "";
    if (name == null) dart.nullFailed(I[22], 184, 13, "name");
    let value = opts && 'value' in opts ? opts.value : null;
    let config = opts && 'config' in opts ? opts.config : C[35] || CT.C35;
    if (config == null) dart.nullFailed(I[22], 186, 12, "config");
    let hideName = opts && 'hideName' in opts ? opts.hideName : false;
    if (hideName == null) dart.nullFailed(I[22], 187, 12, "hideName");
    this[name$0] = name;
    this[value$] = value;
    this[config$] = config;
    this[hideName$] = hideName;
    ;
  }).prototype = _debugger.NameValuePair.prototype;
  dart.addRtiResources(_debugger.NameValuePair, ["_debugger|NameValuePair"]);
  dart.setGetterSignature(_debugger.NameValuePair, () => dart.global.Object.setPrototypeOf({displayName: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_debugger.NameValuePair))));
  dart.setLibraryUri(_debugger.NameValuePair, I[23]);
  dart.setFieldSignature(_debugger.NameValuePair, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    value: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    config: {type: T$.JsonMLConfig(), isConst: false, isFinal: true, libraryUri: I[23]},
    hideName: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.NameValuePair))));
  dart.defineExtensionMethods(_debugger.NameValuePair, ['_equals']);
  dart.defineExtensionAccessors(_debugger.NameValuePair, ['hashCode']);
  var key$ = dart.privateName(_debugger, "MapEntry.key");
  var value$0 = dart.privateName(_debugger, "MapEntry.value");
  _debugger.MapEntry = class MapEntry extends core.Object {
    get key() {
      return this[key$];
    }
    set key(value) {
      super.key = value;
    }
    get value() {
      return this[value$0];
    }
    set value(value) {
      super.value = value;
    }
    static ['_#new#tearOff'](opts) {
      let key = opts && 'key' in opts ? opts.key : null;
      let value = opts && 'value' in opts ? opts.value : null;
      return new _debugger.MapEntry.new({key: key, value: value});
    }
  };
  (_debugger.MapEntry.new = function(opts) {
    let key = opts && 'key' in opts ? opts.key : null;
    let value = opts && 'value' in opts ? opts.value : null;
    this[key$] = key;
    this[value$0] = value;
    ;
  }).prototype = _debugger.MapEntry.prototype;
  dart.addRtiResources(_debugger.MapEntry, ["_debugger|MapEntry"]);
  dart.setLibraryUri(_debugger.MapEntry, I[23]);
  dart.setFieldSignature(_debugger.MapEntry, () => dart.global.Object.setPrototypeOf({
    key: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    value: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.MapEntry))));
  var start$ = dart.privateName(_debugger, "IterableSpan.start");
  var end$ = dart.privateName(_debugger, "IterableSpan.end");
  var iterable$ = dart.privateName(_debugger, "IterableSpan.iterable");
  _debugger.IterableSpan = class IterableSpan extends core.Object {
    get start() {
      return this[start$];
    }
    set start(value) {
      super.start = value;
    }
    get end() {
      return this[end$];
    }
    set end(value) {
      super.end = value;
    }
    get iterable() {
      return this[iterable$];
    }
    set iterable(value) {
      super.iterable = value;
    }
    static ['_#new#tearOff'](start, end, iterable) {
      if (start == null) dart.nullFailed(I[22], 215, 21, "start");
      if (end == null) dart.nullFailed(I[22], 215, 33, "end");
      if (iterable == null) dart.nullFailed(I[22], 215, 43, "iterable");
      return new _debugger.IterableSpan.new(start, end, iterable);
    }
    get length() {
      return dart.notNull(this.end) - dart.notNull(this.start);
    }
    get maxPowerOfSubsetSize() {
      return (math.log(dart.notNull(this.length) - 0.5) / math.log(_debugger._maxSpanLength))[$truncate]();
    }
    get subsetSize() {
      return math.pow(_debugger._maxSpanLength, this.maxPowerOfSubsetSize)[$toInt]();
    }
    asMap() {
      return this.iterable[$skip](this.start)[$take](this.length)[$toList]()[$asMap]();
    }
    children() {
      let children = G.JSArrayOfNameValuePair().of([]);
      if (dart.notNull(this.length) <= dart.notNull(_debugger._maxSpanLength)) {
        this.asMap()[$forEach](dart.fn((i, element) => {
          if (i == null) dart.nullFailed(I[22], 237, 24, "i");
          children[$add](new _debugger.NameValuePair.new({name: (dart.notNull(i) + dart.notNull(this.start))[$toString](), value: element}));
        }, T$.intAnddynamicTovoid()));
      } else {
        for (let i = this.start; dart.notNull(i) < dart.notNull(this.end); i = dart.notNull(i) + dart.notNull(this.subsetSize)) {
          let subSpan = new _debugger.IterableSpan.new(i, math.min(T$.int(), this.end, dart.notNull(this.subsetSize) + dart.notNull(i)), this.iterable);
          if (subSpan.length === 1) {
            children[$add](new _debugger.NameValuePair.new({name: dart.toString(i), value: this.iterable[$elementAt](i)}));
          } else {
            children[$add](new _debugger.NameValuePair.new({name: "[" + dart.str(i) + "..." + dart.strSafe(dart.notNull(subSpan.end) - 1) + "]", value: subSpan, hideName: true}));
          }
        }
      }
      return children;
    }
  };
  (_debugger.IterableSpan.new = function(start, end, iterable) {
    if (start == null) dart.nullFailed(I[22], 215, 21, "start");
    if (end == null) dart.nullFailed(I[22], 215, 33, "end");
    if (iterable == null) dart.nullFailed(I[22], 215, 43, "iterable");
    this[start$] = start;
    this[end$] = end;
    this[iterable$] = iterable;
    ;
  }).prototype = _debugger.IterableSpan.prototype;
  dart.addRtiResources(_debugger.IterableSpan, ["_debugger|IterableSpan"]);
  dart.setMethodSignature(_debugger.IterableSpan, () => dart.global.Object.setPrototypeOf({
    asMap: T$.VoidToMapOfint$dynamic(),
    children: T$.VoidToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.IterableSpan))));
  dart.setGetterSignature(_debugger.IterableSpan, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    maxPowerOfSubsetSize: T$.int(),
    subsetSize: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_debugger.IterableSpan))));
  dart.setLibraryUri(_debugger.IterableSpan, I[23]);
  dart.setFieldSignature(_debugger.IterableSpan, () => dart.global.Object.setPrototypeOf({
    start: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    end: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    iterable: {type: T$.Iterable(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.IterableSpan))));
  var name$1 = dart.privateName(_debugger, "Library.name");
  var object$ = dart.privateName(_debugger, "Library.object");
  _debugger.Library = class Library extends core.Object {
    get name() {
      return this[name$1];
    }
    set name(value) {
      super.name = value;
    }
    get object() {
      return this[object$];
    }
    set object(value) {
      super.object = value;
    }
    static ['_#new#tearOff'](name, object) {
      if (name == null) dart.nullFailed(I[22], 260, 16, "name");
      if (object == null) dart.nullFailed(I[22], 260, 27, "object");
      return new _debugger.Library.new(name, object);
    }
  };
  (_debugger.Library.new = function(name, object) {
    if (name == null) dart.nullFailed(I[22], 260, 16, "name");
    if (object == null) dart.nullFailed(I[22], 260, 27, "object");
    this[name$1] = name;
    this[object$] = object;
    ;
  }).prototype = _debugger.Library.prototype;
  dart.addRtiResources(_debugger.Library, ["_debugger|Library"]);
  dart.setLibraryUri(_debugger.Library, I[23]);
  dart.setFieldSignature(_debugger.Library, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    object: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.Library))));
  var object$0 = dart.privateName(_debugger, "NamedConstructor.object");
  _debugger.NamedConstructor = class NamedConstructor extends core.Object {
    get object() {
      return this[object$0];
    }
    set object(value) {
      super.object = value;
    }
    static ['_#new#tearOff'](object) {
      if (object == null) dart.nullFailed(I[22], 267, 25, "object");
      return new _debugger.NamedConstructor.new(object);
    }
  };
  (_debugger.NamedConstructor.new = function(object) {
    if (object == null) dart.nullFailed(I[22], 267, 25, "object");
    this[object$0] = object;
    ;
  }).prototype = _debugger.NamedConstructor.prototype;
  dart.addRtiResources(_debugger.NamedConstructor, ["_debugger|NamedConstructor"]);
  dart.setLibraryUri(_debugger.NamedConstructor, I[23]);
  dart.setFieldSignature(_debugger.NamedConstructor, () => dart.global.Object.setPrototypeOf({object: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.NamedConstructor))));
  var name$2 = dart.privateName(_debugger, "HeritageClause.name");
  var types$ = dart.privateName(_debugger, "HeritageClause.types");
  _debugger.HeritageClause = class HeritageClause extends core.Object {
    get name() {
      return this[name$2];
    }
    set name(value) {
      super.name = value;
    }
    get types() {
      return this[types$];
    }
    set types(value) {
      super.types = value;
    }
    static ['_#new#tearOff'](name, types) {
      if (name == null) dart.nullFailed(I[22], 273, 23, "name");
      if (types == null) dart.nullFailed(I[22], 273, 34, "types");
      return new _debugger.HeritageClause.new(name, types);
    }
  };
  (_debugger.HeritageClause.new = function(name, types) {
    if (name == null) dart.nullFailed(I[22], 273, 23, "name");
    if (types == null) dart.nullFailed(I[22], 273, 34, "types");
    this[name$2] = name;
    this[types$] = types;
    ;
  }).prototype = _debugger.HeritageClause.prototype;
  dart.addRtiResources(_debugger.HeritageClause, ["_debugger|HeritageClause"]);
  dart.setLibraryUri(_debugger.HeritageClause, I[23]);
  dart.setFieldSignature(_debugger.HeritageClause, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    types: {type: T$.List(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.HeritageClause))));
  var _attributes = dart.privateName(_debugger, "_attributes");
  var __JsonMLElement__jsonML = dart.privateName(_debugger, "_#JsonMLElement#_jsonML");
  var __JsonMLElement__jsonML_isSet = dart.privateName(_debugger, "_#JsonMLElement#_jsonML#isSet");
  var _jsonML = dart.privateName(_debugger, "_jsonML");
  _debugger.JsonMLElement = class JsonMLElement extends core.Object {
    get [_jsonML]() {
      let t$3612;
      return dart.test(this[__JsonMLElement__jsonML_isSet]) ? (t$3612 = this[__JsonMLElement__jsonML], t$3612) : dart.throw(new _internal.LateError.fieldNI("_jsonML"));
    }
    set [_jsonML](_jsonML$35param) {
      if (_jsonML$35param == null) dart.nullFailed(I[22], 297, 13, "_jsonML#param");
      this[__JsonMLElement__jsonML_isSet] = true;
      this[__JsonMLElement__jsonML] = _jsonML$35param;
    }
    static ['_#new#tearOff'](tagName) {
      return new _debugger.JsonMLElement.new(tagName);
    }
    appendChild(element) {
      this[_jsonML][$add](dart.dsend(element, 'toJsonML', []));
    }
    createChild(tagName) {
      if (tagName == null) dart.nullFailed(I[22], 308, 36, "tagName");
      let c = new _debugger.JsonMLElement.new(tagName);
      this[_jsonML][$add](c.toJsonML());
      return c;
    }
    createObjectTag(object) {
      let t$3612;
      t$3612 = this.createChild("object");
      return (() => {
        t$3612.addAttribute("object", object);
        return t$3612;
      })();
    }
    setStyle(style) {
      if (style == null) dart.nullFailed(I[22], 317, 24, "style");
      dart.dput(this[_attributes], 'style', style);
    }
    addStyle(style) {
      let t$3612;
      if (style == null) dart.nullFailed(I[22], 321, 19, "style");
      if (dart.dload(this[_attributes], 'style') == null) {
        dart.dput(this[_attributes], 'style', style);
      } else {
        t$3612 = this[_attributes];
        dart.dput(t$3612, 'style', dart.dsend(dart.dload(t$3612, 'style'), '+', [style]));
      }
    }
    addAttribute(key, value) {
      _debugger.JSNative.setProperty(this[_attributes], key, value);
    }
    createTextChild(text) {
      if (text == null) dart.nullFailed(I[22], 333, 26, "text");
      this[_jsonML][$add](text);
    }
    toJsonML() {
      return this[_jsonML];
    }
  };
  (_debugger.JsonMLElement.new = function(tagName) {
    this[_attributes] = null;
    this[__JsonMLElement__jsonML] = null;
    this[__JsonMLElement__jsonML_isSet] = false;
    this[_attributes] = {};
    this[_jsonML] = [tagName, this[_attributes]];
  }).prototype = _debugger.JsonMLElement.prototype;
  dart.addRtiResources(_debugger.JsonMLElement, ["_debugger|JsonMLElement"]);
  dart.setMethodSignature(_debugger.JsonMLElement, () => dart.global.Object.setPrototypeOf({
    appendChild: T$.dynamicTodynamic(),
    createChild: T$.StringToJsonMLElement(),
    createObjectTag: T$.dynamicToJsonMLElement(),
    setStyle: T$.StringTovoid(),
    addStyle: T$.StringTodynamic(),
    addAttribute: T$.dynamicAnddynamicTodynamic(),
    createTextChild: T$.StringTodynamic(),
    toJsonML: T$.VoidTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.JsonMLElement))));
  dart.setGetterSignature(_debugger.JsonMLElement, () => dart.global.Object.setPrototypeOf({[_jsonML]: T$.List()}, dart.getGetters(dart.global.Object.getPrototypeOf(_debugger.JsonMLElement))));
  dart.setSetterSignature(_debugger.JsonMLElement, () => dart.global.Object.setPrototypeOf({[_jsonML]: T$.List()}, dart.getSetters(dart.global.Object.getPrototypeOf(_debugger.JsonMLElement))));
  dart.setLibraryUri(_debugger.JsonMLElement, I[23]);
  dart.setFieldSignature(_debugger.JsonMLElement, () => dart.global.Object.setPrototypeOf({
    [_attributes]: {type: T$.dynamic(), isConst: false, isFinal: false},
    [__JsonMLElement__jsonML]: {type: T$.ListN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__JsonMLElement__jsonML_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.JsonMLElement))));
  var customFormattersOn = dart.privateName(_debugger, "JsonMLFormatter.customFormattersOn");
  var _simpleFormatter$ = dart.privateName(_debugger, "_simpleFormatter");
  _debugger.JsonMLFormatter = class JsonMLFormatter extends core.Object {
    get customFormattersOn() {
      return this[customFormattersOn];
    }
    set customFormattersOn(value) {
      if (value == null) dart.nullFailed(I[22], 371, 8, "customFormattersOn");
      this[customFormattersOn] = value;
    }
    static ['_#new#tearOff'](_simpleFormatter) {
      if (_simpleFormatter == null) dart.nullFailed(I[22], 373, 24, "_simpleFormatter");
      return new _debugger.JsonMLFormatter.new(_simpleFormatter);
    }
    setMaxSpanLengthForTestingOnly(spanLength) {
      if (spanLength == null) dart.nullFailed(I[22], 375, 43, "spanLength");
      _debugger._maxSpanLength = spanLength;
    }
    header(object, config) {
      let t$3612;
      this.customFormattersOn = true;
      if (dart.equals(config, _debugger.JsonMLConfig.skipDart) || dart.test(_debugger._useNativeJSFormatter(object))) {
        return null;
      }
      let c = this[_simpleFormatter$].preview(object, config);
      if (c == null) return null;
      if (dart.equals(config, _debugger.JsonMLConfig.keyToString)) {
        c = dart.toString(object);
      }
      let element = (t$3612 = new _debugger.JsonMLElement.new("span"), (() => {
        t$3612.setStyle("background-color: #d9edf7;color: black");
        t$3612.createTextChild(c);
        return t$3612;
      })());
      return element.toJsonML();
    }
    hasBody(object, config) {
      return this[_simpleFormatter$].hasChildren(object, config);
    }
    body(object, config) {
      let t$3612, t$3612$, t$3612$0, t$3612$1;
      let body = (t$3612 = new _debugger.JsonMLElement.new("ol"), (() => {
        t$3612.setStyle("list-style-type: none;padding-left: 0px;margin-top: 0px;margin-bottom: 0px;margin-left: 12px;");
        return t$3612;
      })());
      if (T$.StackTrace()[_is](object)) {
        body.addStyle("background-color: thistle;color: rgb(196, 26, 22);");
      }
      let children = this[_simpleFormatter$].children(object, config);
      if (children == null) return body.toJsonML();
      for (let child of children) {
        let li = body.createChild("li");
        li.setStyle("padding-left: 13px;");
        let nameSpan = null;
        let valueStyle = "";
        if (!dart.test(child.hideName)) {
          nameSpan = (t$3612$ = new _debugger.JsonMLElement.new("span"), (() => {
            t$3612$.createTextChild(child.displayName[$isNotEmpty] ? dart.str(child.displayName) + ": " : "");
            t$3612$.setStyle("background-color: thistle; color: rgb(136, 19, 145); margin-right: -13px");
            return t$3612$;
          })());
          valueStyle = "margin-left: 13px";
        }
        if (_debugger._typeof(child.value) === "object" || _debugger._typeof(child.value) === "function") {
          let valueSpan = (t$3612$0 = new _debugger.JsonMLElement.new("span"), (() => {
            t$3612$0.setStyle(valueStyle);
            return t$3612$0;
          })());
          valueSpan.createObjectTag(child.value).addAttribute("config", child.config);
          if (nameSpan != null) {
            li.appendChild(nameSpan);
          }
          li.appendChild(valueSpan);
        } else {
          let line = li.createChild("span");
          if (nameSpan != null) {
            line.appendChild(nameSpan);
          }
          line.appendChild((t$3612$1 = new _debugger.JsonMLElement.new("span"), (() => {
            t$3612$1.createTextChild(_debugger.safePreview(child.value, child.config));
            t$3612$1.setStyle(valueStyle);
            return t$3612$1;
          })()));
        }
      }
      return body.toJsonML();
    }
  };
  (_debugger.JsonMLFormatter.new = function(_simpleFormatter) {
    if (_simpleFormatter == null) dart.nullFailed(I[22], 373, 24, "_simpleFormatter");
    this[customFormattersOn] = false;
    this[_simpleFormatter$] = _simpleFormatter;
    ;
  }).prototype = _debugger.JsonMLFormatter.prototype;
  dart.addRtiResources(_debugger.JsonMLFormatter, ["_debugger|JsonMLFormatter"]);
  dart.setMethodSignature(_debugger.JsonMLFormatter, () => dart.global.Object.setPrototypeOf({
    setMaxSpanLengthForTestingOnly: T$.intTovoid(),
    header: T$.dynamicAnddynamicTodynamic(),
    hasBody: T$.dynamicAnddynamicTobool(),
    body: T$.dynamicAnddynamicTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.JsonMLFormatter))));
  dart.setLibraryUri(_debugger.JsonMLFormatter, I[23]);
  dart.setFieldSignature(_debugger.JsonMLFormatter, () => dart.global.Object.setPrototypeOf({
    [_simpleFormatter$]: {type: T$.DartFormatter(), isConst: false, isFinal: false, libraryUri: I[23]},
    customFormattersOn: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.JsonMLFormatter))));
  _debugger.Formatter = class Formatter extends core.Object {};
  (_debugger.Formatter.new = function() {
    ;
  }).prototype = _debugger.Formatter.prototype;
  dart.addRtiResources(_debugger.Formatter, ["_debugger|Formatter"]);
  dart.setLibraryUri(_debugger.Formatter, I[23]);
  var _formatters = dart.privateName(_debugger, "_formatters");
  var _printConsoleError = dart.privateName(_debugger, "_printConsoleError");
  _debugger.DartFormatter = class DartFormatter extends core.Object {
    static ['_#new#tearOff']() {
      return new _debugger.DartFormatter.new();
    }
    preview(object, config) {
      try {
        if (object == null || typeof object == 'number' || typeof object == 'string' || dart.test(_debugger._useNativeJSFormatter(object))) {
          return dart.toString(object);
        }
        for (let formatter of this[_formatters]) {
          if (dart.test(formatter.accept(object, config))) return formatter.preview(object);
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let trace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this[_printConsoleError]("Caught exception " + dart.str(e) + "\n trace:\n" + dart.str(trace));
        } else
          throw t$36$35e;
      }
      return null;
    }
    hasChildren(object, config) {
      if (object == null) return false;
      try {
        for (let formatter of this[_formatters]) {
          if (dart.test(formatter.accept(object, config))) return formatter.hasChildren(object);
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let trace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this[_printConsoleError]("[hasChildren] Caught exception " + dart.str(e) + "\n trace:\n" + dart.str(trace));
        } else
          throw t$36$35e;
      }
      return false;
    }
    children(object, config) {
      try {
        if (object != null) {
          for (let formatter of this[_formatters]) {
            if (dart.test(formatter.accept(object, config))) return formatter.children(object);
          }
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let trace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this[_printConsoleError]("Caught exception " + dart.str(e) + "\n trace:\n" + dart.str(trace));
        } else
          throw t$36$35e;
      }
      return G.JSArrayOfNameValuePair().of([]);
    }
    [_printConsoleError](message) {
      if (message == null) dart.nullFailed(I[22], 536, 34, "message");
      return window.console.error(message);
    }
  };
  (_debugger.DartFormatter.new = function() {
    this[_formatters] = G.JSArrayOfFormatter().of([new _debugger.ObjectInternalsFormatter.new(), new _debugger.ClassFormatter.new(), new _debugger.TypeFormatter.new(), new _debugger.NamedConstructorFormatter.new(), new _debugger.MapFormatter.new(), new _debugger.MapOverviewFormatter.new(), new _debugger.IterableFormatter.new(), new _debugger.IterableSpanFormatter.new(), new _debugger.MapEntryFormatter.new(), new _debugger.StackTraceFormatter.new(), new _debugger.ErrorAndExceptionFormatter.new(), new _debugger.FunctionFormatter.new(), new _debugger.HeritageClauseFormatter.new(), new _debugger.LibraryModuleFormatter.new(), new _debugger.LibraryFormatter.new(), new _debugger.ObjectFormatter.new()]);
    ;
  }).prototype = _debugger.DartFormatter.prototype;
  dart.addRtiResources(_debugger.DartFormatter, ["_debugger|DartFormatter"]);
  dart.setMethodSignature(_debugger.DartFormatter, () => dart.global.Object.setPrototypeOf({
    preview: T$.dynamicAnddynamicToStringN(),
    hasChildren: T$.dynamicAnddynamicTobool(),
    children: T$.dynamicAnddynamicToListNOfNameValuePair(),
    [_printConsoleError]: T$.StringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.DartFormatter))));
  dart.setLibraryUri(_debugger.DartFormatter, I[23]);
  dart.setFieldSignature(_debugger.DartFormatter, () => dart.global.Object.setPrototypeOf({[_formatters]: {type: T$.ListOfFormatter(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.DartFormatter))));
  _debugger.ObjectFormatter = class ObjectFormatter extends _debugger.Formatter {
    accept(object, config) {
      return !dart.test(_debugger._useNativeJSFormatter(object));
    }
    preview(object) {
      let typeName = _debugger.getObjectTypeName(object);
      try {
        let toString = dart.str(object);
        if (toString.length > dart.notNull(_debugger.maxFormatterStringLength)) {
          toString = toString[$substring](0, dart.notNull(_debugger.maxFormatterStringLength) - 3) + "...";
        }
        if (toString[$contains](typeName)) {
          return toString;
        } else {
          return toString + " (" + dart.str(typeName) + ")";
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e;
      }
      return typeName;
    }
    hasChildren(object) {
      return true;
    }
    children(object) {
      let type = dart.getType(object);
      let ret = new (G._HashSetOfNameValuePair()).new();
      let fields = new (G._HashSetOfNameValuePair()).new();
      _debugger.addPropertiesFromSignature(dart.getFields(type), fields, object, true);
      let getters = new (G._HashSetOfNameValuePair()).new();
      _debugger.addPropertiesFromSignature(dart.getGetters(type), getters, object, true);
      ret.addAll(_debugger.sortProperties(fields));
      ret.addAll(_debugger.sortProperties(getters));
      _debugger.addMetadataChildren(object, ret);
      return ret[$toList]();
    }
    static ['_#new#tearOff']() {
      return new _debugger.ObjectFormatter.new();
    }
  };
  (_debugger.ObjectFormatter.new = function() {
    ;
  }).prototype = _debugger.ObjectFormatter.prototype;
  dart.addRtiResources(_debugger.ObjectFormatter, ["_debugger|ObjectFormatter"]);
  dart.setMethodSignature(_debugger.ObjectFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    preview: T$.dynamicToString(),
    hasChildren: T$.dynamicTobool(),
    children: T$.dynamicToListNOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.ObjectFormatter))));
  dart.setLibraryUri(_debugger.ObjectFormatter, I[23]);
  _debugger.ObjectInternalsFormatter = class ObjectInternalsFormatter extends _debugger.ObjectFormatter {
    accept(object, config) {
      return dart.test(super.accept(object, config)) && dart.equals(config, _debugger.JsonMLConfig.asObject);
    }
    preview(object) {
      return _debugger.getObjectTypeName(object);
    }
    static ['_#new#tearOff']() {
      return new _debugger.ObjectInternalsFormatter.new();
    }
  };
  (_debugger.ObjectInternalsFormatter.new = function() {
    ;
  }).prototype = _debugger.ObjectInternalsFormatter.prototype;
  dart.addRtiResources(_debugger.ObjectInternalsFormatter, ["_debugger|ObjectInternalsFormatter"]);
  dart.setLibraryUri(_debugger.ObjectInternalsFormatter, I[23]);
  _debugger.LibraryModuleFormatter = class LibraryModuleFormatter extends core.Object {
    accept(object, config) {
      return dart.getModuleName(T$.Object()[_as](object)) != null;
    }
    hasChildren(object) {
      return true;
    }
    preview(object) {
      let libraryNames = dart.nullCheck(dart.getModuleName(T$.Object()[_as](object)))[$split]("/");
      if (dart.notNull(libraryNames[$length]) > 1 && libraryNames[$last] == libraryNames[$_get](dart.notNull(libraryNames[$length]) - 2)) {
        libraryNames[$_set](dart.notNull(libraryNames[$length]) - 1, "");
      }
      return "Library Module: " + dart.str(libraryNames[$join]("/"));
    }
    children(object) {
      let children = new (G._HashSetOfNameValuePair()).new();
      for (let name of _debugger.getOwnPropertyNames(T$.Object()[_as](object))) {
        let value = _debugger.safeGetProperty(T$.Object()[_as](object), name);
        children.add(new _debugger.NameValuePair.new({name: name, value: new _debugger.Library.new(name, dart.nullCheck(value)), hideName: true}));
      }
      return children[$toList]();
    }
    static ['_#new#tearOff']() {
      return new _debugger.LibraryModuleFormatter.new();
    }
  };
  (_debugger.LibraryModuleFormatter.new = function() {
    ;
  }).prototype = _debugger.LibraryModuleFormatter.prototype;
  dart.addRtiResources(_debugger.LibraryModuleFormatter, ["_debugger|LibraryModuleFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.LibraryModuleFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    hasChildren: T$.dynamicTobool(),
    preview: T$.dynamicToString(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.LibraryModuleFormatter))));
  dart.setLibraryUri(_debugger.LibraryModuleFormatter, I[23]);
  var genericParameters = dart.privateName(_debugger, "LibraryFormatter.genericParameters");
  _debugger.LibraryFormatter = class LibraryFormatter extends core.Object {
    get genericParameters() {
      return this[genericParameters];
    }
    set genericParameters(value) {
      if (value == null) dart.nullFailed(I[22], 632, 7, "genericParameters");
      this[genericParameters] = value;
    }
    accept(object, config) {
      return T$.Library()[_is](object);
    }
    hasChildren(object) {
      return true;
    }
    preview(object) {
      return T$.String()[_as](dart.dload(object, 'name'));
    }
    children(object) {
      let children = new (G._HashSetOfNameValuePair()).new();
      let objectProperties = _debugger.safeProperties(dart.dload(object, 'object'));
      dart.dsend(objectProperties, 'forEach', [dart.fn((name, value) => {
          if (dart.getGenericTypeCtor(value) != null) return;
          children.add(T$.NameValuePair()[_as](dart.isDartClass(value) ? this.classChild(T$.String()[_as](name), T$.Object()[_as](value)) : new _debugger.NameValuePair.new({name: T$.String()[_as](name), value: value})));
        }, T$.dynamicAnddynamicToNull())]);
      return children[$toList]();
    }
    classChild(name, child) {
      if (name == null) dart.nullFailed(I[22], 657, 21, "name");
      if (child == null) dart.nullFailed(I[22], 657, 34, "child");
      let className = _debugger._hideInternalNames(dart.getClassName(child));
      return new _debugger.NameValuePair.new({name: className, value: child, config: _debugger.JsonMLConfig.asClass});
    }
    static ['_#new#tearOff']() {
      return new _debugger.LibraryFormatter.new();
    }
  };
  (_debugger.LibraryFormatter.new = function() {
    this[genericParameters] = new (G.IdentityMapOfString$String()).new();
    ;
  }).prototype = _debugger.LibraryFormatter.prototype;
  dart.addRtiResources(_debugger.LibraryFormatter, ["_debugger|LibraryFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.LibraryFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    hasChildren: T$.dynamicTobool(),
    preview: T$.dynamicToString(),
    children: T$.dynamicToListOfNameValuePair(),
    classChild: T$.StringAndObjectTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.LibraryFormatter))));
  dart.setLibraryUri(_debugger.LibraryFormatter, I[23]);
  dart.setFieldSignature(_debugger.LibraryFormatter, () => dart.global.Object.setPrototypeOf({genericParameters: {type: T$.HashMapOfString$String(), isConst: false, isFinal: false, libraryUri: I[24]}}, dart.getFields(dart.global.Object.getPrototypeOf(_debugger.LibraryFormatter))));
  _debugger.FunctionFormatter = class FunctionFormatter extends core.Object {
    accept(object, config) {
      return dart.isDartFunction(object);
    }
    hasChildren(object) {
      return true;
    }
    preview(object) {
      try {
        return _debugger.getTypeName(dart.getReifiedType(object));
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          return _debugger.safePreview(object, _debugger.JsonMLConfig.none);
        } else
          throw t$36$35e;
      }
    }
    children(object) {
      return G.JSArrayOfNameValuePair().of([new _debugger.NameValuePair.new({name: "signature", value: this.preview(object)}), new _debugger.NameValuePair.new({name: "JavaScript Function", value: object, config: _debugger.JsonMLConfig.skipDart})]);
    }
    static ['_#new#tearOff']() {
      return new _debugger.FunctionFormatter.new();
    }
  };
  (_debugger.FunctionFormatter.new = function() {
    ;
  }).prototype = _debugger.FunctionFormatter.prototype;
  dart.addRtiResources(_debugger.FunctionFormatter, ["_debugger|FunctionFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.FunctionFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    hasChildren: T$.dynamicTobool(),
    preview: T$.dynamicToString(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.FunctionFormatter))));
  dart.setLibraryUri(_debugger.FunctionFormatter, I[23]);
  _debugger.MapOverviewFormatter = class MapOverviewFormatter extends core.Object {
    accept(object, config) {
      return T$.Map()[_is](object);
    }
    hasChildren(object) {
      return true;
    }
    preview(object) {
      let map = T$.Map()[_as](object);
      try {
        return dart.str(_debugger.getObjectTypeName(map));
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          return _debugger.safePreview(object, _debugger.JsonMLConfig.none);
        } else
          throw t$36$35e;
      }
    }
    children(object) {
      return G.JSArrayOfNameValuePair().of([new _debugger.NameValuePair.new({name: "[[instance view]]", value: object, config: _debugger.JsonMLConfig.asObject}), new _debugger.NameValuePair.new({name: "[[entries]]", value: object, config: _debugger.JsonMLConfig.asMap})]);
    }
    static ['_#new#tearOff']() {
      return new _debugger.MapOverviewFormatter.new();
    }
  };
  (_debugger.MapOverviewFormatter.new = function() {
    ;
  }).prototype = _debugger.MapOverviewFormatter.prototype;
  dart.addRtiResources(_debugger.MapOverviewFormatter, ["_debugger|MapOverviewFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.MapOverviewFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    hasChildren: T$.dynamicTobool(),
    preview: T$.dynamicToString(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.MapOverviewFormatter))));
  dart.setLibraryUri(_debugger.MapOverviewFormatter, I[23]);
  _debugger.MapFormatter = class MapFormatter extends core.Object {
    accept(object, config) {
      return T$.InternalMap()[_is](object) || dart.equals(config, _debugger.JsonMLConfig.asMap);
    }
    hasChildren(object) {
      return true;
    }
    preview(object) {
      let map = T$.Map()[_as](object);
      try {
        return dart.str(_debugger.getObjectTypeName(map)) + " length " + dart.str(map[$length]);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          return _debugger.safePreview(object, _debugger.JsonMLConfig.none);
        } else
          throw t$36$35e;
      }
    }
    children(object) {
      let map = T$.Map()[_as](object);
      let entries = new (G._HashSetOfNameValuePair()).new();
      map[$forEach](dart.fn((key, value) => {
        let entryWrapper = new _debugger.MapEntry.new({key: key, value: value});
        entries.add(new _debugger.NameValuePair.new({name: dart.toString(entries[$length]), value: entryWrapper}));
      }, T$.dynamicAnddynamicTovoid()));
      _debugger.addMetadataChildren(object, entries);
      return entries[$toList]();
    }
    static ['_#new#tearOff']() {
      return new _debugger.MapFormatter.new();
    }
  };
  (_debugger.MapFormatter.new = function() {
    ;
  }).prototype = _debugger.MapFormatter.prototype;
  dart.addRtiResources(_debugger.MapFormatter, ["_debugger|MapFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.MapFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    hasChildren: T$.dynamicTobool(),
    preview: T$.dynamicToString(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.MapFormatter))));
  dart.setLibraryUri(_debugger.MapFormatter, I[23]);
  _debugger.IterableFormatter = class IterableFormatter extends core.Object {
    accept(object, config) {
      return T$.Iterable()[_is](object);
    }
    preview(object) {
      let iterable = T$.Iterable()[_as](object);
      try {
        let length = iterable[$length];
        return dart.str(_debugger.getObjectTypeName(iterable)) + " length " + dart.str(length);
      } catch (t$36$35e) {
        let _ = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](_)) {
          return dart.str(_debugger.getObjectTypeName(iterable));
        } else
          throw t$36$35e;
      }
    }
    hasChildren(object) {
      return true;
    }
    children(object) {
      let children = new (G._HashSetOfNameValuePair()).new();
      children.addAll(new _debugger.IterableSpan.new(0, T$.int()[_as](dart.dload(object, 'length')), T$.Iterable()[_as](object)).children());
      _debugger.addMetadataChildren(object, children);
      return children[$toList]();
    }
    static ['_#new#tearOff']() {
      return new _debugger.IterableFormatter.new();
    }
  };
  (_debugger.IterableFormatter.new = function() {
    ;
  }).prototype = _debugger.IterableFormatter.prototype;
  dart.addRtiResources(_debugger.IterableFormatter, ["_debugger|IterableFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.IterableFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    preview: T$.dynamicToString(),
    hasChildren: T$.dynamicTobool(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.IterableFormatter))));
  dart.setLibraryUri(_debugger.IterableFormatter, I[23]);
  _debugger.NamedConstructorFormatter = class NamedConstructorFormatter extends core.Object {
    accept(object, config) {
      return T$.NamedConstructor()[_is](object);
    }
    preview(object) {
      return "Named Constructor";
    }
    hasChildren(object) {
      return true;
    }
    children(object) {
      return G.JSArrayOfNameValuePair().of([new _debugger.NameValuePair.new({name: "JavaScript Function", value: object, config: _debugger.JsonMLConfig.skipDart})]);
    }
    static ['_#new#tearOff']() {
      return new _debugger.NamedConstructorFormatter.new();
    }
  };
  (_debugger.NamedConstructorFormatter.new = function() {
    ;
  }).prototype = _debugger.NamedConstructorFormatter.prototype;
  dart.addRtiResources(_debugger.NamedConstructorFormatter, ["_debugger|NamedConstructorFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.NamedConstructorFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    preview: T$.dynamicToString(),
    hasChildren: T$.dynamicTobool(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.NamedConstructorFormatter))));
  dart.setLibraryUri(_debugger.NamedConstructorFormatter, I[23]);
  _debugger.MapEntryFormatter = class MapEntryFormatter extends core.Object {
    accept(object, config) {
      return T$.MapEntry()[_is](object);
    }
    preview(object) {
      let entry = T$.MapEntry()[_as](object);
      return dart.str(_debugger.safePreview(entry.key, _debugger.JsonMLConfig.none)) + " => " + dart.str(_debugger.safePreview(entry.value, _debugger.JsonMLConfig.none));
    }
    hasChildren(object) {
      return true;
    }
    children(object) {
      return G.JSArrayOfNameValuePair().of([new _debugger.NameValuePair.new({name: "key", value: dart.dload(object, 'key'), config: _debugger.JsonMLConfig.keyToString}), new _debugger.NameValuePair.new({name: "value", value: dart.dload(object, 'value')})]);
    }
    static ['_#new#tearOff']() {
      return new _debugger.MapEntryFormatter.new();
    }
  };
  (_debugger.MapEntryFormatter.new = function() {
    ;
  }).prototype = _debugger.MapEntryFormatter.prototype;
  dart.addRtiResources(_debugger.MapEntryFormatter, ["_debugger|MapEntryFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.MapEntryFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    preview: T$.dynamicToString(),
    hasChildren: T$.dynamicTobool(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.MapEntryFormatter))));
  dart.setLibraryUri(_debugger.MapEntryFormatter, I[23]);
  _debugger.HeritageClauseFormatter = class HeritageClauseFormatter extends core.Object {
    accept(object, config) {
      return T$.HeritageClause()[_is](object);
    }
    preview(object) {
      let clause = T$.HeritageClause()[_as](object);
      let typeNames = clause.types[$map](T$.String(), C[41] || CT.C41);
      return dart.str(clause.name) + " " + dart.str(typeNames[$join](", "));
    }
    hasChildren(object) {
      return true;
    }
    children(object) {
      let clause = T$.HeritageClause()[_as](object);
      let children = G.JSArrayOfNameValuePair().of([]);
      for (let type of clause.types) {
        children[$add](new _debugger.NameValuePair.new({value: type, config: _debugger.JsonMLConfig.asClass}));
      }
      return children;
    }
    static ['_#new#tearOff']() {
      return new _debugger.HeritageClauseFormatter.new();
    }
  };
  (_debugger.HeritageClauseFormatter.new = function() {
    ;
  }).prototype = _debugger.HeritageClauseFormatter.prototype;
  dart.addRtiResources(_debugger.HeritageClauseFormatter, ["_debugger|HeritageClauseFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.HeritageClauseFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    preview: T$.dynamicToString(),
    hasChildren: T$.dynamicTobool(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.HeritageClauseFormatter))));
  dart.setLibraryUri(_debugger.HeritageClauseFormatter, I[23]);
  _debugger.IterableSpanFormatter = class IterableSpanFormatter extends core.Object {
    accept(object, config) {
      return T$.IterableSpan()[_is](object);
    }
    preview(object) {
      return "[" + dart.str(dart.dload(object, 'start')) + "..." + dart.str(dart.dsend(dart.dload(object, 'end'), '-', [1])) + "]";
    }
    hasChildren(object) {
      return true;
    }
    children(object) {
      return T$.ListOfNameValuePair()[_as](dart.dsend(object, 'children', []));
    }
    static ['_#new#tearOff']() {
      return new _debugger.IterableSpanFormatter.new();
    }
  };
  (_debugger.IterableSpanFormatter.new = function() {
    ;
  }).prototype = _debugger.IterableSpanFormatter.prototype;
  dart.addRtiResources(_debugger.IterableSpanFormatter, ["_debugger|IterableSpanFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.IterableSpanFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    preview: T$.dynamicToString(),
    hasChildren: T$.dynamicTobool(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.IterableSpanFormatter))));
  dart.setLibraryUri(_debugger.IterableSpanFormatter, I[23]);
  _debugger.ErrorAndExceptionFormatter = class ErrorAndExceptionFormatter extends _debugger.ObjectFormatter {
    accept(object, config) {
      return T$.Error()[_is](object) || T$.Exception()[_is](object);
    }
    hasChildren(object) {
      return true;
    }
    preview(object) {
      let trace = dart.stackTrace(object);
      let line = dart.str(trace)[$split]("\n")[$firstWhere](dart.fn(l => {
        if (l == null) dart.nullFailed(I[22], 872, 10, "l");
        return l[$contains](_debugger.ErrorAndExceptionFormatter._pattern) && !l[$contains]("dart:sdk") && !l[$contains]("dart_sdk");
      }, T$.StringTobool()), {orElse: dart.fn(() => "", T$.VoidToString())});
      return line !== "" ? dart.str(object) + " at " + dart.str(line) : dart.str(object);
    }
    children(object) {
      let trace = dart.stackTrace(object);
      let entries = new (G._HashSetOfNameValuePair()).new();
      entries.add(new _debugger.NameValuePair.new({name: "stackTrace", value: trace}));
      this.addInstanceMembers(object, entries);
      _debugger.addMetadataChildren(object, entries);
      return entries[$toList]();
    }
    addInstanceMembers(object, ret) {
      if (ret == null) dart.nullFailed(I[22], 890, 54, "ret");
      ret.add(new _debugger.NameValuePair.new({name: "[[instance members]]", value: object, config: _debugger.JsonMLConfig.asObject}));
    }
    static ['_#new#tearOff']() {
      return new _debugger.ErrorAndExceptionFormatter.new();
    }
  };
  (_debugger.ErrorAndExceptionFormatter.new = function() {
    ;
  }).prototype = _debugger.ErrorAndExceptionFormatter.prototype;
  dart.addRtiResources(_debugger.ErrorAndExceptionFormatter, ["_debugger|ErrorAndExceptionFormatter"]);
  dart.setMethodSignature(_debugger.ErrorAndExceptionFormatter, () => dart.global.Object.setPrototypeOf({
    children: T$.dynamicToListOfNameValuePair(),
    addInstanceMembers: T$.dynamicAndSetOfNameValuePairTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.ErrorAndExceptionFormatter))));
  dart.setLibraryUri(_debugger.ErrorAndExceptionFormatter, I[23]);
  dart.setStaticFieldSignature(_debugger.ErrorAndExceptionFormatter, () => ['_pattern']);
  dart.defineLazy(_debugger.ErrorAndExceptionFormatter, {
    /*_debugger.ErrorAndExceptionFormatter._pattern*/get _pattern() {
      return core.RegExp.new("\\d+\\:\\d+");
    }
  }, false);
  _debugger.StackTraceFormatter = class StackTraceFormatter extends core.Object {
    accept(object, config) {
      return T$.StackTrace()[_is](object);
    }
    preview(object) {
      return "StackTrace";
    }
    hasChildren(object) {
      return true;
    }
    children(object) {
      return dart.toString(object)[$split]("\n")[$map](T$.NameValuePair(), dart.fn(line => {
        if (line == null) dart.nullFailed(I[22], 911, 13, "line");
        return new _debugger.NameValuePair.new({value: line[$replaceFirst](core.RegExp.new("^\\s+at\\s"), ""), hideName: true});
      }, T$.StringToNameValuePair()))[$toList]();
    }
    static ['_#new#tearOff']() {
      return new _debugger.StackTraceFormatter.new();
    }
  };
  (_debugger.StackTraceFormatter.new = function() {
    ;
  }).prototype = _debugger.StackTraceFormatter.prototype;
  dart.addRtiResources(_debugger.StackTraceFormatter, ["_debugger|StackTraceFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.StackTraceFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    preview: T$.dynamicToString(),
    hasChildren: T$.dynamicTobool(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.StackTraceFormatter))));
  dart.setLibraryUri(_debugger.StackTraceFormatter, I[23]);
  _debugger.ClassFormatter = class ClassFormatter extends core.Object {
    accept(object, config) {
      return dart.isDartClass(object);
    }
    preview(cls) {
      return _debugger._hideInternalNames(dart.getClassName(cls));
    }
    hasChildren(object) {
      return true;
    }
    children(type) {
      let t$3620;
      let ret = new (G._HashSetOfNameValuePair()).new();
      let instanceMethods = new (G._HashSetOfNameValuePair()).new();
      _debugger.addPropertiesFromSignature(dart.getMethods(type), instanceMethods, type.prototype, false, {tagTypes: true});
      if (dart.test(instanceMethods[$isNotEmpty])) {
        t$3620 = ret;
        (() => {
          t$3620.add(new _debugger.NameValuePair.new({value: "[[Instance Methods]]", hideName: true}));
          t$3620.addAll(_debugger.sortProperties(instanceMethods));
          return t$3620;
        })();
      }
      let mixin = dart.getMixin(type);
      if (mixin != null) {
        ret.add(new _debugger.NameValuePair.new({name: "[[Mixins]]", value: new _debugger.HeritageClause.new("mixins", [mixin])}));
      }
      let baseProto = Object.getPrototypeOf(T$.Object()[_as](type));
      if (baseProto != null && !dart.test(_debugger._useNativeJSFormatter(baseProto))) {
        ret.add(new _debugger.NameValuePair.new({name: "[[base class]]", value: baseProto, config: _debugger.JsonMLConfig.asClass}));
      }
      return ret[$toList]();
    }
    static ['_#new#tearOff']() {
      return new _debugger.ClassFormatter.new();
    }
  };
  (_debugger.ClassFormatter.new = function() {
    ;
  }).prototype = _debugger.ClassFormatter.prototype;
  dart.addRtiResources(_debugger.ClassFormatter, ["_debugger|ClassFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.ClassFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    preview: T$.dynamicToString(),
    hasChildren: T$.dynamicTobool(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.ClassFormatter))));
  dart.setLibraryUri(_debugger.ClassFormatter, I[23]);
  _debugger.TypeFormatter = class TypeFormatter extends core.Object {
    accept(object, config) {
      return T$.Type()[_is](object);
    }
    preview(object) {
      return dart.toString(object);
    }
    hasChildren(object) {
      return false;
    }
    children(object) {
      return G.JSArrayOfNameValuePair().of([]);
    }
    static ['_#new#tearOff']() {
      return new _debugger.TypeFormatter.new();
    }
  };
  (_debugger.TypeFormatter.new = function() {
    ;
  }).prototype = _debugger.TypeFormatter.prototype;
  dart.addRtiResources(_debugger.TypeFormatter, ["_debugger|TypeFormatter", "_debugger|Formatter"]);
  dart.setMethodSignature(_debugger.TypeFormatter, () => dart.global.Object.setPrototypeOf({
    accept: T$.dynamicAnddynamicTobool(),
    preview: T$.dynamicToString(),
    hasChildren: T$.dynamicTobool(),
    children: T$.dynamicToListOfNameValuePair()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_debugger.TypeFormatter))));
  dart.setLibraryUri(_debugger.TypeFormatter, I[23]);
  _debugger._MethodStats = class _MethodStats extends core.Object {
    static ['_#new#tearOff'](typeName, frame) {
      if (typeName == null) dart.nullFailed(I[25], 13, 21, "typeName");
      if (frame == null) dart.nullFailed(I[25], 13, 36, "frame");
      return new _debugger._MethodStats.new(typeName, frame);
    }
  };
  (_debugger._MethodStats.new = function(typeName, frame) {
    if (typeName == null) dart.nullFailed(I[25], 13, 21, "typeName");
    if (frame == null) dart.nullFailed(I[25], 13, 36, "frame");
    this.count = 0.0;
    this.typeName = typeName;
    this.frame = frame;
    ;
  }).prototype = _debugger._MethodStats.prototype;
  dart.addRtiResources(_debugger._MethodStats, ["_debugger|_MethodStats"]);
  dart.setLibraryUri(_debugger._MethodStats, I[23]);
  dart.setFieldSignature(_debugger._MethodStats, () => dart.global.Object.setPrototypeOf({
    typeName: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    frame: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    count: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_debugger._MethodStats))));
  _debugger._CallMethodRecord = class _CallMethodRecord extends core.Object {
    static ['_#new#tearOff'](jsError, type) {
      return new _debugger._CallMethodRecord.new(jsError, type);
    }
  };
  (_debugger._CallMethodRecord.new = function(jsError, type) {
    this.jsError = jsError;
    this.type = type;
    ;
  }).prototype = _debugger._CallMethodRecord.prototype;
  dart.addRtiResources(_debugger._CallMethodRecord, ["_debugger|_CallMethodRecord"]);
  dart.setLibraryUri(_debugger._CallMethodRecord, I[23]);
  dart.setFieldSignature(_debugger._CallMethodRecord, () => dart.global.Object.setPrototypeOf({
    jsError: {type: T$.dynamic(), isConst: false, isFinal: false},
    type: {type: T$.dynamic(), isConst: false, isFinal: false}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_debugger._CallMethodRecord))));
  _debugger._typeof = function _typeof(object) {
    return typeof object;
  };
  _debugger.getOwnPropertyNames = function getOwnPropertyNames(object) {
    if (object == null) dart.nullFailed(I[22], 50, 41, "object");
    return G.JSArrayOfString().of(dart.getOwnPropertyNames(object));
  };
  _debugger.getOwnPropertySymbols = function getOwnPropertySymbols(object) {
    return Object.getOwnPropertySymbols(object);
  };
  _debugger.addMetadataChildren = function addMetadataChildren(object, ret) {
    if (ret == null) dart.nullFailed(I[22], 65, 53, "ret");
    ret.add(new _debugger.NameValuePair.new({name: "[[class]]", value: dart.getClass(object), config: _debugger.JsonMLConfig.asClass}));
  };
  _debugger.addPropertiesFromSignature = function addPropertiesFromSignature(sig, properties, object, walkPrototypeChain, opts) {
    let t$3620;
    if (properties == null) dart.nullFailed(I[22], 77, 29, "properties");
    if (walkPrototypeChain == null) dart.nullFailed(I[22], 77, 54, "walkPrototypeChain");
    let tagTypes = opts && 'tagTypes' in opts ? opts.tagTypes : false;
    let skippedNames = (t$3620 = new collection._HashSet.new(), (() => {
      t$3620.add("hashCode");
      return t$3620;
    })());
    let objectPrototype = Object.prototype;
    while (sig != null && !core.identical(sig, objectPrototype)) {
      for (let symbol of _debugger.getOwnPropertySymbols(sig)) {
        let dartName = _debugger.symbolName(symbol);
        let dartXPrefix = "dartx.";
        if (dartName[$startsWith](dartXPrefix)) {
          dartName = dartName[$substring](dartXPrefix.length);
        }
        if (dart.test(skippedNames.contains(dartName))) continue;
        let value = _debugger.safeGetProperty(T$.Object()[_as](object), T$.Object()[_as](symbol));
        if (dart.dtest(tagTypes) && _debugger._typeof(value) === "function") {
          dart.fn(value, sig[symbol]);
        }
        properties.add(new _debugger.NameValuePair.new({name: dartName, value: value}));
      }
      for (let name of _debugger.getOwnPropertyNames(T$.Object()[_as](sig))) {
        let value = _debugger.safeGetProperty(T$.Object()[_as](object), name);
        if (dart.test(skippedNames.contains(name))) continue;
        if (dart.dtest(tagTypes) && _debugger._typeof(value) === "function") {
          dart.fn(value, sig[name]);
        }
        properties.add(new _debugger.NameValuePair.new({name: name, value: value}));
      }
      if (!dart.test(walkPrototypeChain)) break;
      sig = dart.getPrototypeOf(sig);
    }
  };
  _debugger.sortProperties = function sortProperties(properties) {
    if (properties == null) dart.nullFailed(I[22], 117, 60, "properties");
    let sortedProperties = properties[$toList]();
    sortedProperties[$sort](dart.fn((a, b) => {
      if (a == null) dart.nullFailed(I[22], 120, 26, "a");
      if (b == null) dart.nullFailed(I[22], 120, 29, "b");
      let aPrivate = a.name[$startsWith]("_");
      let bPrivate = b.name[$startsWith]("_");
      if (aPrivate !== bPrivate) return aPrivate ? 1 : -1;
      return a.name[$compareTo](b.name);
    }, T$.NameValuePairAndNameValuePairToint()));
    return sortedProperties;
  };
  _debugger.getObjectTypeName = function getObjectTypeName(object) {
    let reifiedType = dart.getReifiedType(object);
    if (reifiedType == null) {
      if (_debugger._typeof(object) === "function") {
        return "[[Raw JavaScript Function]]";
      }
      return "<Error getting type name>";
    }
    return _debugger.getTypeName(reifiedType);
  };
  _debugger._hideInternalNames = function _hideInternalNames(name) {
    if (name == null) dart.nullFailed(I[22], 144, 34, "name");
    let jsArrayClassName = core.RegExp.new("\\bJSArray\\b");
    return name[$replaceAll](jsArrayClassName, "List");
  };
  _debugger.getTypeName = function getTypeName(type) {
    return _debugger._hideInternalNames(dart.typeName(type));
  };
  _debugger.safePreview = function safePreview(object, config) {
    try {
      let preview = _debugger._devtoolsFormatter[_simpleFormatter$].preview(object, config);
      if (preview != null) return preview;
      return dart.toString(object);
    } catch (t$36$35e) {
      let e = dart.getThrown(t$36$35e);
      if (T$.Object()[_is](e)) {
        return "<Exception thrown> " + dart.str(e);
      } else
        throw t$36$35e;
    }
  };
  _debugger.symbolName = function symbolName(symbol) {
    let name = dart.toString(symbol);
    if (!name[$startsWith]("Symbol(")) dart.assertFailed(null, I[22], 169, 10, "name.startsWith('Symbol(')");
    return name[$substring]("Symbol(".length, name.length - 1);
  };
  _debugger.hasMethod = function hasMethod$(object, name) {
    if (name == null) dart.nullFailed(I[22], 173, 31, "name");
    try {
      return dart.hasMethod(object, name);
    } catch (t$36$35e) {
      let e = dart.getThrown(t$36$35e);
      if (T$.Object()[_is](e)) {
        return false;
      } else
        throw t$36$35e;
    }
  };
  _debugger.safeGetProperty = function safeGetProperty(protoChain, name) {
    if (protoChain == null) dart.nullFailed(I[22], 279, 32, "protoChain");
    if (name == null) dart.nullFailed(I[22], 279, 51, "name");
    try {
      return _debugger.JSNative.getProperty(protoChain, name);
    } catch (t$36$35e) {
      let e = dart.getThrown(t$36$35e);
      if (T$.Object()[_is](e)) {
        return "<Exception thrown> " + dart.str(e);
      } else
        throw t$36$35e;
    }
  };
  _debugger.safeProperties = function safeProperties(object) {
    return G.LinkedHashMapOfdynamic$ObjectN().fromIterable(_debugger.getOwnPropertyNames(T$.Object()[_as](object))[$where](dart.fn(each => {
      if (each == null) dart.nullFailed(I[22], 289, 17, "each");
      return _debugger.safeGetProperty(T$.Object()[_as](object), each) != null;
    }, T$.StringTobool())), {key: dart.fn(name => name, T$.dynamicTodynamic()), value: dart.fn(name => _debugger.safeGetProperty(T$.Object()[_as](object), T$.Object()[_as](name)), T$.dynamicToObjectN())});
  };
  _debugger._useNativeJSFormatter = function _useNativeJSFormatter(object) {
    let type = _debugger._typeof(object);
    if (type !== "object" && type !== "function") return true;
    if (dart.isDartClass(object) || dart.isDartFunction(object)) return false;
    if (dart.test(dart.isJsInterop(object)) && dart.getModuleName(T$.Object()[_as](object)) == null) {
      return true;
    }
    return object instanceof Node;
  };
  _debugger.registerDevtoolsFormatter = function registerDevtoolsFormatter() {
    dart.global.devtoolsFormatters = [_debugger._devtoolsFormatter];
  };
  _debugger.getModuleNames = function getModuleNames$() {
    return dart.getModuleNames();
  };
  _debugger.getModuleLibraries = function getModuleLibraries$(name) {
    if (name == null) dart.nullFailed(I[22], 1004, 27, "name");
    return dart.getModuleLibraries(name);
  };
  _debugger.getDynamicStats = function getDynamicStats() {
    let t$3623;
    let callMethodStats = new (G.IdentityMapOfString$_MethodStats()).new();
    if (dart.notNull(_debugger._callMethodRecords[$length]) > 0) {
      let recordRatio = dart.notNull(_debugger._totalCallRecords) / dart.notNull(_debugger._callMethodRecords[$length]);
      for (let record of _debugger._callMethodRecords) {
        let stackStr = record.jsError.stack;
        let frames = stackStr[$split]("\n");
        let src = frames[$skip](2)[$map](T$.String(), dart.fn(f => {
          if (f == null) dart.nullFailed(I[25], 66, 17, "f");
          return _debugger._frameMappingCache[$putIfAbsent](f, dart.fn(() => dart.nullCheck(_debugger.stackTraceMapper)("\n" + dart.str(f)), T$.VoidToString()));
        }, T$.StringToString()))[$firstWhere](dart.fn(f => {
          if (f == null) dart.nullFailed(I[25], 68, 24, "f");
          return !f[$startsWith]("dart:");
        }, T$.StringTobool()), {orElse: dart.fn(() => "", T$.VoidToString())});
        let actualTypeName = dart.typeName(record.type);
        t$3623 = callMethodStats[$putIfAbsent](actualTypeName + " <" + dart.str(src) + ">", dart.fn(() => new _debugger._MethodStats.new(actualTypeName, src), T$.VoidTo_MethodStats()));
        t$3623.count = dart.notNull(t$3623.count) + recordRatio;
      }
      if (_debugger._totalCallRecords != _debugger._callMethodRecords[$length]) {
        for (let k of callMethodStats[$keys][$toList]()) {
          let stats = dart.nullCheck(callMethodStats[$_get](k));
          let threshold = dart.notNull(_debugger._minCount) * recordRatio;
          if (dart.notNull(stats.count) + 0.001 < threshold) {
            callMethodStats[$remove](k);
          }
        }
      }
    }
    _debugger._callMethodRecords[$clear]();
    _debugger._totalCallRecords = 0;
    let keys = callMethodStats[$keys][$toList]();
    keys[$sort](dart.fn((a, b) => {
      if (a == null) dart.nullFailed(I[25], 94, 8, "a");
      if (b == null) dart.nullFailed(I[25], 94, 11, "b");
      return dart.nullCheck(callMethodStats[$_get](b)).count[$compareTo](dart.nullCheck(callMethodStats[$_get](a)).count);
    }, T$.StringAndStringToint()));
    let ret = G.JSArrayOfListOfObject().of([]);
    for (let key of keys) {
      let stats = dart.nullCheck(callMethodStats[$_get](key));
      ret[$add](G.JSArrayOfObject().of([stats.typeName, stats.frame, stats.count[$round]()]));
    }
    return ret;
  };
  _debugger.clearDynamicStats = function clearDynamicStats() {
    _debugger._callMethodRecords[$clear]();
  };
  _debugger.trackCall = function trackCall(obj) {
    if (!_debugger._trackProfile) return;
    let index = -1;
    _debugger._totalCallRecords = dart.notNull(_debugger._totalCallRecords) + 1;
    if (_debugger._callMethodRecords[$length] == _debugger._callRecordSampleSize) {
      index = Math.floor(Math.random() * _debugger._totalCallRecords);
      if (index >= dart.notNull(_debugger._callMethodRecords[$length])) return;
    }
    let record = new _debugger._CallMethodRecord.new(new Error(), dart.getReifiedType(obj));
    if (index === -1) {
      _debugger._callMethodRecords[$add](record);
    } else {
      _debugger._callMethodRecords[$_set](index, record);
    }
  };
  dart.copyProperties(_debugger, {
    get stackTraceMapper() {
      let _util = dart.global.$dartStackTraceUtility;
      return _util != null ? _util.mapper : null;
    },
    get _trackProfile() {
      return dart.__trackProfile;
    }
  });
  dart.defineLazy(_debugger, {
    /*_debugger._maxSpanLength*/get _maxSpanLength() {
      return 100;
    },
    set _maxSpanLength(value) {
      if (value == null) dart.nullFailed(I[22], 42, 5, "_maxSpanLength");
    },
    /*_debugger._devtoolsFormatter*/get _devtoolsFormatter() {
      return new _debugger.JsonMLFormatter.new(new _debugger.DartFormatter.new());
    },
    set _devtoolsFormatter(value) {
      if (value == null) dart.nullFailed(I[22], 43, 5, "_devtoolsFormatter");
    },
    /*_debugger.maxFormatterStringLength*/get maxFormatterStringLength() {
      return 100;
    },
    set maxFormatterStringLength(value) {
      if (value == null) dart.nullFailed(I[22], 46, 5, "maxFormatterStringLength");
    },
    /*_debugger._callRecordSampleSize*/get _callRecordSampleSize() {
      return 5000;
    },
    set _callRecordSampleSize(value) {
      if (value == null) dart.nullFailed(I[25], 24, 5, "_callRecordSampleSize");
    },
    /*_debugger._callMethodRecords*/get _callMethodRecords() {
      return G.JSArrayOf_CallMethodRecord().of([]);
    },
    set _callMethodRecords(value) {
      if (value == null) dart.nullFailed(I[25], 28, 5, "_callMethodRecords");
    },
    /*_debugger._totalCallRecords*/get _totalCallRecords() {
      return 0;
    },
    set _totalCallRecords(value) {
      if (value == null) dart.nullFailed(I[25], 32, 5, "_totalCallRecords");
    },
    /*_debugger._minCount*/get _minCount() {
      return 2;
    },
    set _minCount(value) {
      if (value == null) dart.nullFailed(I[25], 38, 5, "_minCount");
    },
    /*_debugger._frameMappingCache*/get _frameMappingCache() {
      return new (G.IdentityMapOfString$String()).new();
    },
    set _frameMappingCache(value) {
      if (value == null) dart.nullFailed(I[25], 44, 5, "_frameMappingCache");
    }
  }, false);
  var name$3 = dart.privateName(_foreign_helper, "JSExportName.name");
  _foreign_helper.JSExportName = class JSExportName extends core.Object {
    get name() {
      return this[name$3];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[26], 147, 27, "name");
      return new _foreign_helper.JSExportName.new(name);
    }
  };
  (_foreign_helper.JSExportName.new = function(name) {
    if (name == null) dart.nullFailed(I[26], 147, 27, "name");
    this[name$3] = name;
    ;
  }).prototype = _foreign_helper.JSExportName.prototype;
  dart.addRtiResources(_foreign_helper.JSExportName, ["_foreign_helper|JSExportName"]);
  dart.setLibraryUri(_foreign_helper.JSExportName, I[27]);
  dart.setFieldSignature(_foreign_helper.JSExportName, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_foreign_helper.JSExportName))));
  var code$ = dart.privateName(_foreign_helper, "JS_CONST.code");
  _foreign_helper.JS_CONST = class JS_CONST extends core.Object {
    get code() {
      return this[code$];
    }
    set code(value) {
      super.code = value;
    }
    static ['_#new#tearOff'](code) {
      if (code == null) dart.nullFailed(I[26], 246, 23, "code");
      return new _foreign_helper.JS_CONST.new(code);
    }
  };
  (_foreign_helper.JS_CONST.new = function(code) {
    if (code == null) dart.nullFailed(I[26], 246, 23, "code");
    this[code$] = code;
    ;
  }).prototype = _foreign_helper.JS_CONST.prototype;
  dart.addRtiResources(_foreign_helper.JS_CONST, ["_foreign_helper|JS_CONST"]);
  dart.setLibraryUri(_foreign_helper.JS_CONST, I[27]);
  dart.setFieldSignature(_foreign_helper.JS_CONST, () => dart.global.Object.setPrototypeOf({code: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_foreign_helper.JS_CONST))));
  _foreign_helper._Rest = class _Rest extends core.Object {
    static ['_#new#tearOff']() {
      return new _foreign_helper._Rest.new();
    }
  };
  (_foreign_helper._Rest.new = function() {
    ;
  }).prototype = _foreign_helper._Rest.prototype;
  dart.addRtiResources(_foreign_helper._Rest, ["_foreign_helper|_Rest"]);
  dart.setLibraryUri(_foreign_helper._Rest, I[27]);
  _foreign_helper.JS_DART_OBJECT_CONSTRUCTOR = function JS_DART_OBJECT_CONSTRUCTOR() {
  };
  _foreign_helper.JS_INTERCEPTOR_CONSTANT = function JS_INTERCEPTOR_CONSTANT(type) {
    if (type == null) dart.nullFailed(I[26], 161, 30, "type");
  };
  _foreign_helper.JS_EFFECT = function JS_EFFECT(code) {
    if (code == null) dart.nullFailed(I[26], 233, 25, "code");
    dart.dcall(code, [null]);
  };
  _foreign_helper.spread = function spread(args) {
    dart.throw(new core.StateError.new("The spread function cannot be called, it should be compiled away."));
  };
  _foreign_helper.getJSArrayInteropRti = function getJSArrayInteropRti() {
    return T$.JSArray();
  };
  dart.defineLazy(_foreign_helper, {
    /*_foreign_helper.rest*/get rest() {
      return C[42] || CT.C42;
    }
  }, false);
  _interceptors.Interceptor = class Interceptor extends core.Object {
    toString() {
      return this.toString();
    }
  };
  (_interceptors.Interceptor.new = function() {
    ;
  }).prototype = _interceptors.Interceptor.prototype;
  dart.addRtiResources(_interceptors.Interceptor, ["_interceptors|Interceptor"]);
  dart.setLibraryUri(_interceptors.Interceptor, I[28]);
  dart.defineExtensionMethods(_interceptors.Interceptor, ['toString']);
  _interceptors.JSBool = class JSBool extends _interceptors.Interceptor {
    static ['_#new#tearOff']() {
      return new _interceptors.JSBool.new();
    }
    [$toString]() {
      return String(this);
    }
    get [$hashCode]() {
      return this ? 2 * 3 * 23 * 3761 : 269 * 811;
    }
    [$bitAnd](other) {
      if (other == null) dart.argumentError(other);
      return other && this;
    }
    [$bitOr](other) {
      if (other == null) dart.argumentError(other);
      return other || this;
    }
    [$bitXor](other) {
      if (other == null) dart.argumentError(other);
      return this !== other;
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$.bool());
    }
  };
  (_interceptors.JSBool.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JSBool).new.call(this);
    ;
  }).prototype = _interceptors.JSBool.prototype;
  dart.addRtiResources(_interceptors.JSBool, ["_interceptors|JSBool", "core|bool", "_js_helper|TrustedGetRuntimeType"]);
  dart.setMethodSignature(_interceptors.JSBool, () => dart.global.Object.setPrototypeOf({
    [$bitAnd]: T$.boolTobool(),
    [$bitOr]: T$.boolTobool(),
    [$bitXor]: T$.boolTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_interceptors.JSBool))));
  dart.setLibraryUri(_interceptors.JSBool, I[28]);
  dart.definePrimitiveHashCode(_interceptors.JSBool.prototype);
  dart.registerExtension("Boolean", _interceptors.JSBool);
  _interceptors.JSIndexable$ = dart.generic(E => {
    var __t$JSIndexableOfE = () => (__t$JSIndexableOfE = dart.constFn(E[_eval]("_interceptors|JSIndexable<0>")))();
    class JSIndexable extends core.Object {}
    (JSIndexable.new = function() {
      this.$ti = this.$ti || __t$JSIndexableOfE();
      ;
    }).prototype = JSIndexable.prototype;
    dart.addRtiResources(JSIndexable, ["_interceptors|JSIndexable"]);
    dart.setLibraryUri(JSIndexable, I[28]);
    return JSIndexable;
  });
  _interceptors.JSIndexable = _interceptors.JSIndexable$();
  _interceptors.JSMutableIndexable$ = dart.generic(E => {
    var __t$JSMutableIndexableOfE = () => (__t$JSMutableIndexableOfE = dart.constFn(E[_eval]("_interceptors|JSMutableIndexable<0>")))();
    var __t$JSIndexableOfE = () => (__t$JSIndexableOfE = dart.constFn(_interceptors.JSIndexable$(E)))();
    class JSMutableIndexable extends __t$JSIndexableOfE() {}
    (JSMutableIndexable.new = function() {
      this.$ti = this.$ti || __t$JSMutableIndexableOfE();
      ;
    }).prototype = JSMutableIndexable.prototype;
    dart.addRtiResources(JSMutableIndexable, ["_interceptors|JSMutableIndexable"]);
    dart.setLibraryUri(JSMutableIndexable, I[28]);
    return JSMutableIndexable;
  });
  _interceptors.JSMutableIndexable = _interceptors.JSMutableIndexable$();
  _interceptors.JSObject = class JSObject extends core.Object {};
  (_interceptors.JSObject.new = function() {
    ;
  }).prototype = _interceptors.JSObject.prototype;
  dart.addRtiResources(_interceptors.JSObject, ["_interceptors|JSObject"]);
  dart.setLibraryUri(_interceptors.JSObject, I[28]);
  _interceptors.JavaScriptObject = class JavaScriptObject extends _interceptors.Interceptor {
    static ['_#new#tearOff']() {
      return new _interceptors.JavaScriptObject.new();
    }
  };
  (_interceptors.JavaScriptObject.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JavaScriptObject).new.call(this);
    ;
  }).prototype = _interceptors.JavaScriptObject.prototype;
  dart.addRtiResources(_interceptors.JavaScriptObject, ["_interceptors|JavaScriptObject", "_interceptors|JSObject"]);
  dart.setLibraryUri(_interceptors.JavaScriptObject, I[28]);
  _interceptors.LegacyJavaScriptObject = class LegacyJavaScriptObject extends _interceptors.JavaScriptObject {
    static ['_#new#tearOff']() {
      return new _interceptors.LegacyJavaScriptObject.new();
    }
  };
  (_interceptors.LegacyJavaScriptObject.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.LegacyJavaScriptObject).new.call(this);
    ;
  }).prototype = _interceptors.LegacyJavaScriptObject.prototype;
  dart.addRtiResources(_interceptors.LegacyJavaScriptObject, ["_interceptors|LegacyJavaScriptObject"]);
  dart.setLibraryUri(_interceptors.LegacyJavaScriptObject, I[28]);
  _interceptors.PlainJavaScriptObject = class PlainJavaScriptObject extends _interceptors.LegacyJavaScriptObject {
    static ['_#new#tearOff']() {
      return new _interceptors.PlainJavaScriptObject.new();
    }
  };
  (_interceptors.PlainJavaScriptObject.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.PlainJavaScriptObject).new.call(this);
    ;
  }).prototype = _interceptors.PlainJavaScriptObject.prototype;
  dart.addRtiResources(_interceptors.PlainJavaScriptObject, ["_interceptors|PlainJavaScriptObject"]);
  dart.setLibraryUri(_interceptors.PlainJavaScriptObject, I[28]);
  _interceptors.UnknownJavaScriptObject = class UnknownJavaScriptObject extends _interceptors.LegacyJavaScriptObject {
    static ['_#new#tearOff']() {
      return new _interceptors.UnknownJavaScriptObject.new();
    }
  };
  (_interceptors.UnknownJavaScriptObject.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.UnknownJavaScriptObject).new.call(this);
    ;
  }).prototype = _interceptors.UnknownJavaScriptObject.prototype;
  dart.addRtiResources(_interceptors.UnknownJavaScriptObject, ["_interceptors|UnknownJavaScriptObject"]);
  dart.setLibraryUri(_interceptors.UnknownJavaScriptObject, I[28]);
  _interceptors.NativeError = class NativeError extends _interceptors.JavaScriptObject {
    [$dartStack]() {
      return this.stack;
    }
    static ['_#new#tearOff']() {
      return new _interceptors.NativeError.new();
    }
  };
  (_interceptors.NativeError.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.NativeError).new.call(this);
    ;
  }).prototype = _interceptors.NativeError.prototype;
  dart.addRtiResources(_interceptors.NativeError, ["_interceptors|NativeError"]);
  dart.setMethodSignature(_interceptors.NativeError, () => dart.global.Object.setPrototypeOf({[$dartStack]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_interceptors.NativeError))));
  dart.setLibraryUri(_interceptors.NativeError, I[28]);
  dart.registerExtension("Error", _interceptors.NativeError);
  var _fieldName = dart.privateName(_interceptors, "_fieldName");
  var _functionCallTarget = dart.privateName(_interceptors, "_functionCallTarget");
  var _receiver = dart.privateName(_interceptors, "_receiver");
  var _receiver$ = dart.privateName(core, "_receiver");
  var _memberName = dart.privateName(_interceptors, "_memberName");
  var _memberName$ = dart.privateName(core, "_memberName");
  var _arguments = dart.privateName(_interceptors, "_arguments");
  var _arguments$ = dart.privateName(core, "_arguments");
  var _namedArguments = dart.privateName(_interceptors, "_namedArguments");
  var _namedArguments$ = dart.privateName(core, "_namedArguments");
  var _invocation = dart.privateName(_interceptors, "_invocation");
  var _invocation$ = dart.privateName(core, "_invocation");
  _interceptors.JSNoSuchMethodError = class JSNoSuchMethodError extends _interceptors.NativeError {
    [_fieldName](message) {
      let t$3623;
      if (message == null) dart.nullFailed(I[29], 128, 29, "message");
      let match = _interceptors.JSNoSuchMethodError._nullError.firstMatch(message);
      if (match == null) return null;
      let name = dart.nullCheck(match._get(1));
      match = (t$3623 = _interceptors.JSNoSuchMethodError._extensionName.firstMatch(name), t$3623 == null ? _interceptors.JSNoSuchMethodError._privateName.firstMatch(name) : t$3623);
      return match != null ? match._get(1) : name;
    }
    [_functionCallTarget](message) {
      if (message == null) dart.nullFailed(I[29], 136, 38, "message");
      let match = _interceptors.JSNoSuchMethodError._notAFunction.firstMatch(message);
      return match != null ? match._get(1) : null;
    }
    [$dartStack]() {
      let stack = super[$dartStack]();
      stack = dart.notNull(dart.toString(this)) + "\n" + dart.notNull(stack[$split]("\n")[$sublist](1)[$join]("\n"));
      return stack;
    }
    get [$stackTrace]() {
      return dart.stackTrace(this);
    }
    [$toString]() {
      let message = this.message;
      let callTarget = this[_functionCallTarget](message);
      if (callTarget != null) {
        return "NoSuchMethodError: tried to call a non-function, such as null: " + "'" + dart.str(callTarget) + "'";
      }
      let name = this[_fieldName](message);
      if (name == null) {
        return this.toString();
      }
      return "NoSuchMethodError: invalid member on null: '" + dart.str(name) + "'";
    }
    static ['_#new#tearOff']() {
      return new _interceptors.JSNoSuchMethodError.new();
    }
    get [_receiver$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[43] || CT.C43)));
    }
    get [_memberName$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[44] || CT.C44)));
    }
    get [_arguments$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[45] || CT.C45)));
    }
    get [_namedArguments$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[46] || CT.C46)));
    }
    get [_invocation$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[47] || CT.C47)));
    }
  };
  (_interceptors.JSNoSuchMethodError.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JSNoSuchMethodError).new.call(this);
    ;
  }).prototype = _interceptors.JSNoSuchMethodError.prototype;
  dart.addRtiResources(_interceptors.JSNoSuchMethodError, ["_interceptors|JSNoSuchMethodError", "core|NoSuchMethodError", "core|Error"]);
  dart.setMethodSignature(_interceptors.JSNoSuchMethodError, () => dart.global.Object.setPrototypeOf({
    [_fieldName]: T$.StringToStringN(),
    [_functionCallTarget]: T$.StringToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_interceptors.JSNoSuchMethodError))));
  dart.setGetterSignature(_interceptors.JSNoSuchMethodError, () => dart.global.Object.setPrototypeOf({
    [$stackTrace]: T$.StackTrace(),
    [_receiver$]: T$.ObjectN(),
    [_memberName$]: T$.Symbol(),
    [_arguments$]: T$.ListN(),
    [_namedArguments$]: T$.MapNOfSymbol$dynamic(),
    [_invocation$]: T$.InvocationN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_interceptors.JSNoSuchMethodError))));
  dart.setLibraryUri(_interceptors.JSNoSuchMethodError, I[28]);
  dart.setStaticFieldSignature(_interceptors.JSNoSuchMethodError, () => ['_nullError', '_notAFunction', '_extensionName', '_privateName']);
  dart.defineLazy(_interceptors.JSNoSuchMethodError, {
    /*_interceptors.JSNoSuchMethodError._nullError*/get _nullError() {
      return core.RegExp.new("^Cannot read property '(.+)' of null$");
    },
    /*_interceptors.JSNoSuchMethodError._notAFunction*/get _notAFunction() {
      return core.RegExp.new("^(.+) is not a function$");
    },
    /*_interceptors.JSNoSuchMethodError._extensionName*/get _extensionName() {
      return core.RegExp.new("^Symbol\\(dartx\\.(.+)\\)$");
    },
    /*_interceptors.JSNoSuchMethodError._privateName*/get _privateName() {
      return core.RegExp.new("^Symbol\\((_.+)\\)$");
    }
  }, false);
  dart.registerExtension("TypeError", _interceptors.JSNoSuchMethodError);
  _interceptors.JSFunction = class JSFunction extends _interceptors.Interceptor {
    [$toString]() {
      if (dart.isDartClass(this)) {
        return "Dart class: " + this.name;
      }
      return "Closure: " + dart.typeName(dart.getReifiedType(this)) + " from: " + this;
    }
    [$_equals](other) {
      if (other == null) return false;
      if (this === other) return true;
      let boundObj = null;
      let otherFn = null;
      let originalFn = this._originalFn;
      if (originalFn == null) {
        boundObj = this._boundObject;
        if (boundObj == null) return false;
        originalFn = this;
        otherFn = other;
      } else {
        let typeArgs = this._typeArgs;
        let otherTypeArgs = other._typeArgs;
        {
          let typeArgCount = typeArgs.length;
          if (!otherTypeArgs || typeArgCount !== otherTypeArgs.length) {
            return false;
          }
          for (let i = 0; i < typeArgCount; i = i + 1) {
            let typeArg = typeArgs[i];
            let otherTypeArg = otherTypeArgs[i];
            {
              if (dart_rti.Rti.getLegacyErasedRecipe(typeArg) != dart_rti.Rti.getLegacyErasedRecipe(otherTypeArg)) {
                return false;
              }
            }
          }
        }
        boundObj = originalFn._boundObject;
        otherFn = other._originalFn;
        if (boundObj == null) {
          return originalFn === otherFn;
        }
      }
      return boundObj === otherFn._boundObject && originalFn._boundMethod === otherFn._boundMethod;
    }
    get [$hashCode]() {
      let boundObj = this._boundObject;
      if (boundObj == null) return core.identityHashCode(this);
      let boundMethod = this._boundMethod;
      let hash = 17 * 31 + dart.notNull(dart.hashCode(boundObj)) & 536870911;
      return hash * 31 + dart.notNull(core.identityHashCode(boundMethod)) & 536870911;
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(dart.getReifiedType(this));
    }
    static ['_#new#tearOff']() {
      return new _interceptors.JSFunction.new();
    }
  };
  (_interceptors.JSFunction.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JSFunction).new.call(this);
    ;
  }).prototype = _interceptors.JSFunction.prototype;
  dart.addRtiResources(_interceptors.JSFunction, ["_interceptors|JSFunction"]);
  dart.setLibraryUri(_interceptors.JSFunction, I[28]);
  dart.registerExtension("Function", _interceptors.JSFunction);
  _interceptors.JSNull = class JSNull extends core.Object {
    toString() {
      return "null";
    }
    noSuchMethod(i) {
      if (i == null) dart.nullFailed(I[29], 264, 27, "i");
      dart.defaultNoSuchMethod(null, i);
      return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
    }
    static ['_#new#tearOff']() {
      return new _interceptors.JSNull.new();
    }
  };
  (_interceptors.JSNull.new = function() {
    ;
  }).prototype = _interceptors.JSNull.prototype;
  dart.addRtiResources(_interceptors.JSNull, ["_interceptors|JSNull"]);
  dart.setLibraryUri(_interceptors.JSNull, I[28]);
  dart.defineExtensionMethods(_interceptors.JSNull, ['toString', 'noSuchMethod']);
  var _hasValue = dart.privateName(_interceptors, "_hasValue");
  var _hasValue$ = dart.privateName(core, "_hasValue");
  var _errorName = dart.privateName(_interceptors, "_errorName");
  var _errorName$ = dart.privateName(core, "_errorName");
  var _errorExplanation = dart.privateName(_interceptors, "_errorExplanation");
  var _errorExplanation$ = dart.privateName(core, "_errorExplanation");
  _interceptors.JSRangeError = class JSRangeError extends _interceptors.JavaScriptObject {
    get [$stackTrace]() {
      return dart.stackTrace(this);
    }
    get [$invalidValue]() {
      return null;
    }
    get [$name]() {
      return null;
    }
    get [$message]() {
      return this.message;
    }
    [$toString]() {
      return "Invalid argument: " + dart.str(this[$message]);
    }
    static ['_#new#tearOff']() {
      return new _interceptors.JSRangeError.new();
    }
    get [_hasValue$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[48] || CT.C48)));
    }
    get [_errorName$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[49] || CT.C49)));
    }
    get [_errorExplanation$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[50] || CT.C50)));
    }
  };
  (_interceptors.JSRangeError.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JSRangeError).new.call(this);
    ;
  }).prototype = _interceptors.JSRangeError.prototype;
  dart.addRtiResources(_interceptors.JSRangeError, ["_interceptors|JSRangeError", "core|ArgumentError", "core|Error"]);
  dart.setGetterSignature(_interceptors.JSRangeError, () => dart.global.Object.setPrototypeOf({
    [$stackTrace]: T$.StackTrace(),
    [$invalidValue]: T$.dynamic(),
    [$name]: T$.StringN(),
    [$message]: T$.dynamic(),
    [_hasValue$]: T$.bool(),
    [_errorName$]: T$.String(),
    [_errorExplanation$]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_interceptors.JSRangeError))));
  dart.setLibraryUri(_interceptors.JSRangeError, I[28]);
  dart.registerExtension("RangeError", _interceptors.JSRangeError);
  _interceptors.JavaScriptFunction = class JavaScriptFunction extends _interceptors.LegacyJavaScriptObject {
    static ['_#new#tearOff']() {
      return new _interceptors.JavaScriptFunction.new();
    }
  };
  (_interceptors.JavaScriptFunction.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JavaScriptFunction).new.call(this);
    ;
  }).prototype = _interceptors.JavaScriptFunction.prototype;
  dart.addRtiResources(_interceptors.JavaScriptFunction, ["_interceptors|JavaScriptFunction", "core|Function"]);
  dart.setLibraryUri(_interceptors.JavaScriptFunction, I[28]);
  _interceptors.JavaScriptBigInt = class JavaScriptBigInt extends _interceptors.Interceptor {
    static ['_#new#tearOff']() {
      return new _interceptors.JavaScriptBigInt.new();
    }
    get [$hashCode]() {
      return 0;
    }
    [$toString]() {
      return String(this);
    }
  };
  (_interceptors.JavaScriptBigInt.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JavaScriptBigInt).new.call(this);
    ;
  }).prototype = _interceptors.JavaScriptBigInt.prototype;
  dart.addRtiResources(_interceptors.JavaScriptBigInt, ["_interceptors|JavaScriptBigInt"]);
  dart.setLibraryUri(_interceptors.JavaScriptBigInt, I[28]);
  dart.registerExtension("BigInt", _interceptors.JavaScriptBigInt);
  _interceptors.JavaScriptSymbol = class JavaScriptSymbol extends _interceptors.Interceptor {
    static ['_#new#tearOff']() {
      return new _interceptors.JavaScriptSymbol.new();
    }
    get [$hashCode]() {
      return 0;
    }
    [$toString]() {
      return String(this);
    }
  };
  (_interceptors.JavaScriptSymbol.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JavaScriptSymbol).new.call(this);
    ;
  }).prototype = _interceptors.JavaScriptSymbol.prototype;
  dart.addRtiResources(_interceptors.JavaScriptSymbol, ["_interceptors|JavaScriptSymbol"]);
  dart.setLibraryUri(_interceptors.JavaScriptSymbol, I[28]);
  dart.registerExtension("Symbol", _interceptors.JavaScriptSymbol);
  var _setLengthUnsafe = dart.privateName(_interceptors, "_setLengthUnsafe");
  var _removeWhere = dart.privateName(_interceptors, "_removeWhere");
  _interceptors.JSArray$ = dart.generic(E => {
    var __t$JSArrayOfE = () => (__t$JSArrayOfE = dart.constFn(E[_eval]("_interceptors|JSArray<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$EAndEToE = () => (__t$EAndEToE = dart.constFn(E[_eval]("0(0,0)")))();
    var __t$VoidToNE = () => (__t$VoidToNE = dart.constFn(E[_eval]("0()?")))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(E[_eval]("core|List<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    var __t$EAndEToint = () => (__t$EAndEToint = dart.constFn(E[_eval]("core|int(0,0)")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~(core|bool(0))")))();
    var __t$FnAndboolTovoid = () => (__t$FnAndboolTovoid = dart.constFn(E[_eval]("~(core|bool(0),core|bool)")))();
    var __t$FnToIterableOfE = () => (__t$FnToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|bool(0))")))();
    var __t$FnToIterableOfT = () => (__t$FnToIterableOfT = dart.constFn(E[_eval]("core|Iterable<0^>(core|Iterable<0^>(0))<core|Object?>")))();
    var __t$FnTovoid$ = () => (__t$FnTovoid$ = dart.constFn(E[_eval]("~(~(0))")))();
    var __t$FnToIterableOfT$ = () => (__t$FnToIterableOfT$ = dart.constFn(E[_eval]("core|Iterable<0^>(0^(0))<core|Object?>")))();
    var __t$intToIterableOfE = () => (__t$intToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|int)")))();
    var __t$ObjectNToE = () => (__t$ObjectNToE = dart.constFn(E[_eval]("0(core|Object?)")))();
    var __t$TAndFnToT = () => (__t$TAndFnToT = dart.constFn(E[_eval]("0^(0^,0^(0^,0))<core|Object?>")))();
    var __t$Fn__ToE = () => (__t$Fn__ToE = dart.constFn(E[_eval]("0(core|bool(0){orElse:core|Object?})")))();
    var __t$intAndintNToListOfE = () => (__t$intAndintNToListOfE = dart.constFn(E[_eval]("core|List<0>(core|int[core|int?])")))();
    var __t$intAndintToIterableOfE = () => (__t$intAndintToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|int,core|int)")))();
    var __t$FnTobool = () => (__t$FnTobool = dart.constFn(E[_eval]("core|bool(core|bool(0))")))();
    var __t$FnTovoid$0 = () => (__t$FnTovoid$0 = dart.constFn(E[_eval]("~([core|int(0,0)?])")))();
    var __t$__ToListOfE = () => (__t$__ToListOfE = dart.constFn(E[_eval]("core|List<0>({growable:core|bool})")))();
    var __t$VoidToSetOfE = () => (__t$VoidToSetOfE = dart.constFn(E[_eval]("core|Set<0>()")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$VoidToMapOfint$E = () => (__t$VoidToMapOfint$E = dart.constFn(E[_eval]("core|Map<core|int,0>()")))();
    var __t$ObjectNToIterableOfE = () => (__t$ObjectNToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|Object?)")))();
    var __t$ObjectNToListOfE = () => (__t$ObjectNToListOfE = dart.constFn(E[_eval]("core|List<0>(core|Object?)")))();
    var __t$FnAndintToint = () => (__t$FnAndintToint = dart.constFn(E[_eval]("core|int(core|bool(0)[core|int])")))();
    var __t$FnAndintNToint = () => (__t$FnAndintNToint = dart.constFn(E[_eval]("core|int(core|bool(0)[core|int?])")))();
    var __t$WhereIterableOfE = () => (__t$WhereIterableOfE = dart.constFn(_internal.WhereIterable$(E)))();
    var __t$SubListIterableOfE = () => (__t$SubListIterableOfE = dart.constFn(_internal.SubListIterable$(E)))();
    var __t$TakeWhileIterableOfE = () => (__t$TakeWhileIterableOfE = dart.constFn(_internal.TakeWhileIterable$(E)))();
    var __t$SkipWhileIterableOfE = () => (__t$SkipWhileIterableOfE = dart.constFn(_internal.SkipWhileIterable$(E)))();
    var __t$JSArrayOfE$ = () => (__t$JSArrayOfE$ = dart.constFn(_interceptors.JSArray$(E)))();
    var __t$ReversedListIterableOfE = () => (__t$ReversedListIterableOfE = dart.constFn(_internal.ReversedListIterable$(E)))();
    var __t$LinkedHashSetOfE = () => (__t$LinkedHashSetOfE = dart.constFn(collection.LinkedHashSet$(E)))();
    var __t$ArrayIteratorOfE = () => (__t$ArrayIteratorOfE = dart.constFn(_interceptors.ArrayIterator$(E)))();
    var __t$ListMapViewOfE = () => (__t$ListMapViewOfE = dart.constFn(_internal.ListMapView$(E)))();
    var __t$FollowedByIterableOfE = () => (__t$FollowedByIterableOfE = dart.constFn(_internal.FollowedByIterable$(E)))();
    var __t$ListOfE$ = () => (__t$ListOfE$ = dart.constFn(core.List$(E)))();
    class JSArray extends _interceptors.JavaScriptObject {
      constructor() {
        return [];
      }
      static ['_#new#tearOff'](E) {
        return new (_interceptors.JSArray$(E)).new();
      }
      static of(list) {
        Object.setPrototypeOf(list, JSArray.prototype);
        return list;
      }
      static ['_#of#tearOff'](E, list) {
        if (list == null) dart.nullFailed(I[30], 18, 38, "list");
        return _interceptors.JSArray$(E).of(list);
      }
      static fixed(list) {
        Object.setPrototypeOf(list, JSArray.prototype);
        list.fixed$length = Array;
        return list;
      }
      static ['_#fixed#tearOff'](E, list) {
        if (list == null) dart.nullFailed(I[30], 28, 41, "list");
        return _interceptors.JSArray$(E).fixed(list);
      }
      static unmodifiable(list) {
        Object.setPrototypeOf(list, JSArray.prototype);
        list.fixed$length = Array;
        list.immutable$list = Array;
        return list;
      }
      static ['_#unmodifiable#tearOff'](E, list) {
        if (list == null) dart.nullFailed(I[30], 34, 48, "list");
        return _interceptors.JSArray$(E).unmodifiable(list);
      }
      get [$arrayRti]() {
        return __t$JSArrayOfE();
      }
      set [$arrayRti](_) {
        return dart.throw(new core.UnsupportedError.new("Setting arrayRti is not supported in DDC."));
      }
      static markFixedList(list) {
        list.fixed$length = Array;
      }
      static markUnmodifiableList(list) {
        list.fixed$length = Array;
        list.immutable$list = Array;
      }
      [$checkMutable](reason) {
        if (this.immutable$list) {
          dart.throw(new core.UnsupportedError.new(T$.String()[_as](reason)));
        }
      }
      [$checkGrowable](reason) {
        if (this.fixed$length) {
          dart.throw(new core.UnsupportedError.new(T$.String()[_as](reason)));
        }
      }
      [$cast](R) {
        return core.List.castFrom(E, R, this);
      }
      [$add](value) {
        E[_as](value);
        this[$checkGrowable]("add");
        this.push(value);
      }
      [$removeAt](index) {
        if (index == null) dart.argumentError(index);
        this[$checkGrowable]("removeAt");
        if (index < 0 || index >= this[$length]) {
          dart.throw(new core.RangeError.value(index));
        }
        return this.splice(index, 1)[0];
      }
      [$insert](index, value) {
        if (index == null) dart.argumentError(index);
        E[_as](value);
        this[$checkGrowable]("insert");
        if (index < 0 || index > this[$length]) {
          dart.throw(new core.RangeError.value(index));
        }
        this.splice(index, 0, value);
      }
      [$insertAll](index, iterable) {
        if (index == null) dart.argumentError(index);
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[30], 106, 52, "iterable");
        this[$checkGrowable]("insertAll");
        core.RangeError.checkValueInInterval(index, 0, this[$length], "index");
        if (!T$.EfficientLengthIterable()[_is](iterable)) {
          iterable = iterable[$toList]();
        }
        let insertionLength = dart.notNull(iterable[$length]);
        this[_setLengthUnsafe](this[$length] + insertionLength);
        let end = index + insertionLength;
        this[$setRange](end, this[$length], this, index);
        this[$setRange](index, end, iterable);
      }
      [$setAll](index, iterable) {
        let t$3623;
        if (index == null) dart.argumentError(index);
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[30], 120, 49, "iterable");
        this[$checkMutable]("setAll");
        core.RangeError.checkValueInInterval(index, 0, this[$length], "index");
        for (let element of iterable) {
          this[$_set]((t$3623 = index, index = t$3623 + 1, t$3623), element);
        }
      }
      [$removeLast]() {
        this[$checkGrowable]("removeLast");
        if (this[$length] === 0) dart.throw(_js_helper.diagnoseIndexError(this, -1));
        return this.pop();
      }
      [$remove](element) {
        this[$checkGrowable]("remove");
        let length = this[$length];
        for (let i = 0; i < length; i = i + 1) {
          if (dart.equals(this[$_get](i), element)) {
            this.splice(i, 1);
            return true;
          }
        }
        return false;
      }
      [$removeWhere](test) {
        if (test == null) dart.nullFailed(I[30], 147, 37, "test");
        this[$checkGrowable]("removeWhere");
        this[_removeWhere](test, true);
      }
      [$retainWhere](test) {
        if (test == null) dart.nullFailed(I[30], 152, 37, "test");
        this[$checkGrowable]("retainWhere");
        this[_removeWhere](test, false);
      }
      [_removeWhere](test, removeMatching) {
        if (test == null) dart.nullFailed(I[30], 157, 38, "test");
        if (removeMatching == null) dart.nullFailed(I[30], 157, 49, "removeMatching");
        let retained = [];
        let end = this[$length];
        for (let i = 0; i < end; i = i + 1) {
          let element = this[i];
          if (!dart.test(test(element)) === removeMatching) {
            retained.push(element);
          }
          if (this[$length] !== end) dart.throw(new core.ConcurrentModificationError.new(this));
        }
        if (retained[$length] === end) return;
        this[$length] = retained[$length];
        let length = dart.notNull(retained[$length]);
        for (let i = 0; i < length; i = i + 1) {
          this[i] = retained[i];
        }
      }
      [$where](f) {
        if (f == null) dart.nullFailed(I[30], 186, 38, "f");
        return new (__t$WhereIterableOfE()).new(this, f);
      }
      [$expand](T, f) {
        if (f == null) dart.nullFailed(I[30], 190, 49, "f");
        return new (_internal.ExpandIterable$(E, T)).new(this, f);
      }
      [$addAll](collection) {
        __t$IterableOfE()[_as](collection);
        if (collection == null) dart.nullFailed(I[30], 194, 27, "collection");
        let i = this[$length];
        this[$checkGrowable]("addAll");
        for (let e of collection) {
          if (!(i === this[$length] || dart.throw(new core.ConcurrentModificationError.new(this)))) dart.assertFailed(null, I[30], 198, 14, "i == this.length || (throw ConcurrentModificationError(this))");
          i = i + 1;
          this.push(e);
        }
      }
      [$clear]() {
        this[$length] = 0;
      }
      [$forEach](f) {
        if (f == null) dart.nullFailed(I[30], 208, 33, "f");
        let end = this[$length];
        for (let i = 0; i < end; i = i + 1) {
          let element = this[i];
          f(element);
          if (this[$length] !== end) dart.throw(new core.ConcurrentModificationError.new(this));
        }
      }
      [$map](T, f) {
        if (f == null) dart.nullFailed(I[30], 217, 36, "f");
        return new (_internal.MappedListIterable$(E, T)).new(this, f);
      }
      [$join](separator = "") {
        if (separator == null) dart.nullFailed(I[30], 221, 23, "separator");
        let length = this[$length];
        let list = G.ListOfString().filled(length, "");
        for (let i = 0; i < length; i = i + 1) {
          list[$_set](i, dart.str(this[$_get](i)));
        }
        return list.join(separator);
      }
      [$take](n) {
        if (n == null) dart.nullFailed(I[30], 230, 24, "n");
        return new (__t$SubListIterableOfE()).new(this, 0, _internal.checkNotNullable(T$.int(), n, "count"));
      }
      [$takeWhile](test) {
        if (test == null) dart.nullFailed(I[30], 234, 30, "test");
        return new (__t$TakeWhileIterableOfE()).new(this, test);
      }
      [$skip](n) {
        if (n == null) dart.nullFailed(I[30], 238, 24, "n");
        return new (__t$SubListIterableOfE()).new(this, n, null);
      }
      [$skipWhile](test) {
        if (test == null) dart.nullFailed(I[30], 242, 42, "test");
        return new (__t$SkipWhileIterableOfE()).new(this, test);
      }
      [$reduce](combine) {
        __t$EAndEToE()[_as](combine);
        if (combine == null) dart.nullFailed(I[30], 246, 14, "combine");
        let length = this[$length];
        if (length === 0) dart.throw(_internal.IterableElementError.noElement());
        let value = this[$_get](0);
        for (let i = 1; i < length; i = i + 1) {
          let element = this[i];
          value = combine(value, element);
          if (length !== this[$length]) dart.throw(new core.ConcurrentModificationError.new(this));
        }
        return value;
      }
      [$fold](T, initialValue, combine) {
        if (combine == null) dart.nullFailed(I[30], 258, 68, "combine");
        let value = initialValue;
        let length = this[$length];
        for (let i = 0; i < length; i = i + 1) {
          let element = this[i];
          value = combine(value, element);
          if (this[$length] !== length) dart.throw(new core.ConcurrentModificationError.new(this));
        }
        return value;
      }
      [$firstWhere](test, opts) {
        if (test == null) dart.nullFailed(I[30], 269, 33, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let end = this[$length];
        for (let i = 0; i < end; i = i + 1) {
          let element = this[i];
          if (dart.test(test(element))) return element;
          if (this[$length] !== end) dart.throw(new core.ConcurrentModificationError.new(this));
        }
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      [$lastWhere](test, opts) {
        if (test == null) dart.nullFailed(I[30], 280, 32, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let length = this[$length];
        for (let i = length - 1; i >= 0; i = i - 1) {
          let element = this[i];
          if (dart.test(test(element))) return element;
          if (length !== this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      [$singleWhere](test, opts) {
        if (test == null) dart.nullFailed(I[30], 293, 34, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let length = this[$length];
        let match = null;
        let matchFound = false;
        for (let i = 0; i < length; i = i + 1) {
          let element = this[i];
          if (dart.test(test(element))) {
            if (matchFound) {
              dart.throw(_internal.IterableElementError.tooMany());
            }
            matchFound = true;
            match = element;
          }
          if (length !== this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        if (matchFound) return E[_as](match);
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      [$elementAt](index) {
        if (index == null) dart.nullFailed(I[30], 315, 19, "index");
        return this[$_get](index);
      }
      [$sublist](start, end = null) {
        if (start == null) dart.argumentError(start);
        if (start < 0 || start > this[$length]) {
          dart.throw(new core.RangeError.range(start, 0, this[$length], "start"));
        }
        if (end == null) {
          end = this[$length];
        } else {
          let _end = end;
          if (_end < start || _end > this[$length]) {
            dart.throw(new core.RangeError.range(end, start, this[$length], "end"));
          }
        }
        if (start === end) return __t$JSArrayOfE$().of([]);
        return __t$JSArrayOfE$().of(this.slice(start, end));
      }
      [$getRange](start, end) {
        if (start == null) dart.nullFailed(I[30], 336, 28, "start");
        if (end == null) dart.nullFailed(I[30], 336, 39, "end");
        core.RangeError.checkValidRange(start, end, this[$length]);
        return new (__t$SubListIterableOfE()).new(this, start, end);
      }
      get [$first]() {
        if (this[$length] > 0) return this[$_get](0);
        dart.throw(_internal.IterableElementError.noElement());
      }
      get [$last]() {
        if (this[$length] > 0) return this[$_get](this[$length] - 1);
        dart.throw(_internal.IterableElementError.noElement());
      }
      get [$single]() {
        if (this[$length] === 1) return this[$_get](0);
        if (this[$length] === 0) dart.throw(_internal.IterableElementError.noElement());
        dart.throw(_internal.IterableElementError.tooMany());
      }
      [$removeRange](start, end) {
        if (start == null) dart.argumentError(start);
        if (end == null) dart.argumentError(end);
        this[$checkGrowable]("removeRange");
        core.RangeError.checkValidRange(start, end, this[$length]);
        let deleteCount = end - start;
        this.splice(start, deleteCount);
      }
      [$setRange](start, end, iterable, skipCount = 0) {
        if (start == null) dart.argumentError(start);
        if (end == null) dart.argumentError(end);
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[30], 364, 71, "iterable");
        if (skipCount == null) dart.argumentError(skipCount);
        this[$checkMutable]("set range");
        core.RangeError.checkValidRange(start, end, this[$length]);
        let length = end - start;
        if (length === 0) return;
        core.RangeError.checkNotNegative(skipCount, "skipCount");
        let otherList = __t$JSArrayOfE$().of([]);
        let otherStart = 0;
        if (__t$ListOfE()[_is](iterable)) {
          otherList = iterable;
          otherStart = skipCount;
        } else {
          otherList = iterable[$skip](skipCount)[$toList]({growable: false});
          otherStart = 0;
        }
        if (otherStart + length > dart.notNull(otherList[$length])) {
          dart.throw(_internal.IterableElementError.tooFew());
        }
        if (otherStart < start) {
          for (let i = length - 1; i >= 0; i = i - 1) {
            let element = otherList[$_get](otherStart + i);
            this[start + i] = element;
          }
        } else {
          for (let i = 0; i < length; i = i + 1) {
            let element = otherList[$_get](otherStart + i);
            this[start + i] = element;
          }
        }
      }
      [$fillRange](start, end, fillValue = null) {
        if (start == null) dart.argumentError(start);
        if (end == null) dart.argumentError(end);
        __t$EN()[_as](fillValue);
        this[$checkMutable]("fill range");
        core.RangeError.checkValidRange(start, end, this[$length]);
        let checkedFillValue = E[_as](fillValue);
        for (let i = start; i < end; i = i + 1) {
          this[i] = checkedFillValue;
        }
      }
      [$replaceRange](start, end, replacement) {
        if (start == null) dart.argumentError(start);
        if (end == null) dart.argumentError(end);
        __t$IterableOfE()[_as](replacement);
        if (replacement == null) dart.nullFailed(I[30], 415, 61, "replacement");
        this[$checkGrowable]("replace range");
        core.RangeError.checkValidRange(start, end, this[$length]);
        if (!T$.EfficientLengthIterable()[_is](replacement)) {
          replacement = replacement[$toList]();
        }
        let removeLength = end - start;
        let insertLength = dart.notNull(replacement[$length]);
        if (removeLength >= insertLength) {
          let delta = removeLength - insertLength;
          let insertEnd = start + insertLength;
          let newLength = this[$length] - delta;
          this[$setRange](start, insertEnd, replacement);
          if (delta !== 0) {
            this[$setRange](insertEnd, newLength, this, end);
            this[$length] = newLength;
          }
        } else {
          let delta = insertLength - removeLength;
          let newLength = this[$length] + delta;
          let insertEnd = start + insertLength;
          this[_setLengthUnsafe](newLength);
          this[$setRange](insertEnd, newLength, this, end);
          this[$setRange](start, insertEnd, replacement);
        }
      }
      [$any](test) {
        if (test == null) dart.nullFailed(I[30], 443, 29, "test");
        let end = this[$length];
        for (let i = 0; i < end; i = i + 1) {
          let element = this[i];
          if (dart.test(test(element))) return true;
          if (this[$length] !== end) dart.throw(new core.ConcurrentModificationError.new(this));
        }
        return false;
      }
      [$every](test) {
        if (test == null) dart.nullFailed(I[30], 453, 31, "test");
        let end = this[$length];
        for (let i = 0; i < end; i = i + 1) {
          let element = this[i];
          if (!dart.test(test(element))) return false;
          if (this[$length] !== end) dart.throw(new core.ConcurrentModificationError.new(this));
        }
        return true;
      }
      get [$reversed]() {
        return new (__t$ReversedListIterableOfE()).new(this);
      }
      [$sort](compare = null) {
        this[$checkMutable]("sort");
        if (compare == null) {
          _internal.Sort.sort(E, this, dart.fn((a, b) => core.Comparable.compare(T$.Comparable()[_as](a), T$.Comparable()[_as](b)), __t$EAndEToint()));
        } else {
          _internal.Sort.sort(E, this, compare);
        }
      }
      [$shuffle](random = null) {
        this[$checkMutable]("shuffle");
        if (random == null) random = math.Random.new();
        let length = this[$length];
        while (length > 1) {
          let pos = random.nextInt(length);
          length = length - 1;
          let tmp = this[$_get](length);
          this[$_set](length, this[$_get](pos));
          this[$_set](pos, tmp);
        }
      }
      [$indexOf](element, start = 0) {
        if (start == null) dart.argumentError(start);
        let length = this[$length];
        if (start >= length) {
          return -1;
        }
        if (start < 0) {
          start = 0;
        }
        for (let i = start; i < length; i = i + 1) {
          if (dart.equals(this[$_get](i), element)) {
            return i;
          }
        }
        return -1;
      }
      [$lastIndexOf](element, startIndex = null) {
        let t$3623;
        let start = (t$3623 = startIndex, t$3623 == null ? this[$length] - 1 : t$3623);
        if (start >= this[$length]) {
          start = this[$length] - 1;
        } else if (start < 0) {
          return -1;
        }
        for (let i = start; i >= 0; i = i - 1) {
          if (dart.equals(this[$_get](i), element)) {
            return i;
          }
        }
        return -1;
      }
      [$contains](other) {
        let length = this[$length];
        for (let i = 0; i < length; i = i + 1) {
          let element = this[i];
          if (dart.equals(element, other)) return true;
        }
        return false;
      }
      get [$isEmpty]() {
        return this[$length] === 0;
      }
      get [$isNotEmpty]() {
        return !this[$isEmpty];
      }
      [$toString]() {
        return collection.ListBase.listToString(this);
      }
      [$toList](opts) {
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.argumentError(growable);
        let list = this.slice();
        if (!growable) _interceptors.JSArray.markFixedList(list);
        return __t$JSArrayOfE$().of(list);
      }
      [$toSet]() {
        return __t$LinkedHashSetOfE().from(this);
      }
      get [$iterator]() {
        return new (__t$ArrayIteratorOfE()).new(this);
      }
      get [$hashCode]() {
        return core.identityHashCode(this);
      }
      [$_equals](other) {
        if (other == null) return false;
        return this === other;
      }
      get [$length]() {
        return this.length;
      }
      set [$length](newLength) {
        if (newLength == null) dart.argumentError(newLength);
        this[$checkGrowable]("set length");
        if (newLength < 0) {
          dart.throw(new core.RangeError.range(newLength, 0, null, "newLength"));
        }
        if (newLength > this[$length]) E[_as](null);
        this.length = newLength;
      }
      [_setLengthUnsafe](newLength) {
        if (newLength == null) dart.nullFailed(I[30], 577, 29, "newLength");
        if (dart.notNull(newLength) < 0) {
          dart.throw(new core.RangeError.range(newLength, 0, null, "newLength"));
        }
        this.length = newLength;
      }
      [$_get](index) {
        if (index == null) dart.nullFailed(I[30], 587, 21, "index");
        if (index == null || !(index >= 0 && index < this.length)) {
          dart.throw(_js_helper.diagnoseIndexError(this, index));
        }
        return this[index];
      }
      [$_set](index, value$) {
        let value = value$;
        if (index == null) dart.nullFailed(I[30], 597, 25, "index");
        E[_as](value);
        this[$checkMutable]("indexed set");
        if (index == null || !(index >= 0 && index < this.length)) {
          dart.throw(_js_helper.diagnoseIndexError(this, index));
        }
        this[index] = value;
        return value$;
      }
      [$asMap]() {
        return new (__t$ListMapViewOfE()).new(this);
      }
      get [$runtimeType]() {
        return dart_rti.createRuntimeType(__t$ListOfE());
      }
      [$followedBy](other) {
        __t$IterableOfE()[_as](other);
        if (other == null) dart.nullFailed(I[30], 613, 38, "other");
        return __t$FollowedByIterableOfE().firstEfficient(this, other);
      }
      [$whereType](T) {
        return new (_internal.WhereTypeIterable$(T)).new(this);
      }
      [$plus](other) {
        __t$ListOfE()[_as](other);
        if (other == null) dart.nullFailed(I[30], 618, 30, "other");
        return (() => {
          let t$3623 = __t$ListOfE$().of(this);
          t$3623[$addAll](other);
          return t$3623;
        })();
      }
      [$indexWhere](test, start = 0) {
        if (test == null) dart.nullFailed(I[30], 620, 35, "test");
        if (start == null) dart.nullFailed(I[30], 620, 46, "start");
        if (dart.notNull(start) >= this[$length]) return -1;
        if (dart.notNull(start) < 0) start = 0;
        for (let i = start; dart.notNull(i) < this[$length]; i = dart.notNull(i) + 1) {
          if (dart.test(test(this[$_get](i)))) return i;
        }
        return -1;
      }
      [$lastIndexWhere](test, start = null) {
        if (test == null) dart.nullFailed(I[30], 629, 39, "test");
        if (start == null) start = this[$length] - 1;
        if (dart.notNull(start) < 0) return -1;
        for (let i = start; dart.notNull(i) >= 0; i = dart.notNull(i) - 1) {
          if (dart.test(test(this[$_get](i)))) return i;
        }
        return -1;
      }
      set [$first](element) {
        E[_as](element);
        if (this[$isEmpty]) dart.throw(new core.IndexError.withLength(0, this[$length], {indexable: this}));
        this[$_set](0, element);
      }
      set [$last](element) {
        E[_as](element);
        if (this[$isEmpty]) dart.throw(new core.IndexError.withLength(0, this[$length], {indexable: this}));
        this[$_set](this[$length] - 1, element);
      }
    }
    (JSArray.new = function() {
      this.$ti = this.$ti || __t$JSArrayOfE();
      dart.global.Object.getPrototypeOf(JSArray).new.call(this);
      ;
    }).prototype = JSArray.prototype;
    dart.setExtensionBaseClass(JSArray, dart.global.Array);
    dart.addRtiResources(JSArray, ["_interceptors|JSArray", "core|List", "_interceptors|JSIndexable", "_js_helper|TrustedGetRuntimeType", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(JSArray, () => dart.global.Object.setPrototypeOf({
      [$checkMutable]: T$.dynamicTodynamic(),
      [$checkGrowable]: T$.dynamicTodynamic(),
      [$cast]: T$.VoidToListOfR(),
      [$add]: T$.ObjectNTovoid(),
      [$removeAt]: __t$intToE(),
      [$insert]: T$.intAndObjectNTovoid(),
      [$insertAll]: T$.intAndObjectNTovoid(),
      [$setAll]: T$.intAndObjectNTovoid(),
      [$removeLast]: __t$VoidToE(),
      [$remove]: T$.ObjectNTobool(),
      [$removeWhere]: __t$FnTovoid(),
      [$retainWhere]: __t$FnTovoid(),
      [_removeWhere]: __t$FnAndboolTovoid(),
      [$where]: __t$FnToIterableOfE(),
      [$expand]: __t$FnToIterableOfT(),
      [$addAll]: T$.ObjectNTovoid(),
      [$clear]: T$.VoidTovoid(),
      [$forEach]: __t$FnTovoid$(),
      [$map]: __t$FnToIterableOfT$(),
      [$join]: T$.StringToString$1(),
      [$take]: __t$intToIterableOfE(),
      [$takeWhile]: __t$FnToIterableOfE(),
      [$skip]: __t$intToIterableOfE(),
      [$skipWhile]: __t$FnToIterableOfE(),
      [$reduce]: __t$ObjectNToE(),
      [$fold]: __t$TAndFnToT(),
      [$firstWhere]: __t$Fn__ToE(),
      [$lastWhere]: __t$Fn__ToE(),
      [$singleWhere]: __t$Fn__ToE(),
      [$elementAt]: __t$intToE(),
      [$sublist]: __t$intAndintNToListOfE(),
      [$getRange]: __t$intAndintToIterableOfE(),
      [$removeRange]: T$.intAndintTovoid(),
      [$setRange]: T$.intAndintAndObjectN__Tovoid(),
      [$fillRange]: T$.intAndintAndObjectNTovoid(),
      [$replaceRange]: T$.intAndintAndObjectNTovoid$1(),
      [$any]: __t$FnTobool(),
      [$every]: __t$FnTobool(),
      [$sort]: __t$FnTovoid$0(),
      [$shuffle]: T$.RandomNTovoid(),
      [$indexOf]: T$.ObjectNAndintToint(),
      [$lastIndexOf]: T$.ObjectNAndintNToint(),
      [$contains]: T$.ObjectNTobool(),
      [$toList]: __t$__ToListOfE(),
      [$toSet]: __t$VoidToSetOfE(),
      [_setLengthUnsafe]: T$.intTovoid(),
      [$_get]: __t$intToE(),
      [$_set]: T$.intAndObjectNTovoid(),
      [$asMap]: __t$VoidToMapOfint$E(),
      [$followedBy]: __t$ObjectNToIterableOfE(),
      [$whereType]: T$.VoidToIterableOfT(),
      [$plus]: __t$ObjectNToListOfE(),
      [$indexWhere]: __t$FnAndintToint(),
      [$lastIndexWhere]: __t$FnAndintNToint()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(JSArray))));
    dart.setMethodsDefaultTypeArgSignature(JSArray, () => dart.global.Object.setPrototypeOf({
      [$cast]: [T$.dynamic()],
      [$expand]: [T$.dynamic()],
      [$map]: [T$.dynamic()],
      [$fold]: [T$.dynamic()],
      [$whereType]: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(JSArray))));
    dart.setStaticMethodSignature(JSArray, () => ['of', 'fixed', 'unmodifiable', 'markFixedList', 'markUnmodifiableList']);
    dart.setGetterSignature(JSArray, () => dart.global.Object.setPrototypeOf({
      [$first]: E,
      [$last]: E,
      [$single]: E,
      [$reversed]: __t$IterableOfE(),
      [$isEmpty]: T$.bool(),
      [$isNotEmpty]: T$.bool(),
      [$iterator]: __t$IteratorOfE(),
      [$length]: T$.int()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(JSArray))));
    dart.setSetterSignature(JSArray, () => dart.global.Object.setPrototypeOf({
      [$length]: T$.int(),
      [$first]: T$.ObjectN(),
      [$last]: T$.ObjectN()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(JSArray))));
    dart.setLibraryUri(JSArray, I[28]);
    return JSArray;
  });
  _interceptors.JSArray = _interceptors.JSArray$();
  dart.registerExtension("Array", _interceptors.JSArray);
  _interceptors.JSMutableArray$ = dart.generic(E => {
    var __t$JSMutableArrayOfE = () => (__t$JSMutableArrayOfE = dart.constFn(E[_eval]("_interceptors|JSMutableArray<0>")))();
    var __t$JSArrayOfE = () => (__t$JSArrayOfE = dart.constFn(_interceptors.JSArray$(E)))();
    class JSMutableArray extends __t$JSArrayOfE() {
      static ['_#new#tearOff'](E) {
        return new (_interceptors.JSMutableArray$(E)).new();
      }
    }
    (JSMutableArray.new = function() {
      this.$ti = this.$ti || __t$JSMutableArrayOfE();
      dart.global.Object.getPrototypeOf(JSMutableArray).new.call(this);
      ;
    }).prototype = JSMutableArray.prototype;
    dart.addRtiResources(JSMutableArray, ["_interceptors|JSMutableArray", "_interceptors|JSMutableIndexable", "_interceptors|JSIndexable"]);
    dart.setLibraryUri(JSMutableArray, I[28]);
    return JSMutableArray;
  });
  _interceptors.JSMutableArray = _interceptors.JSMutableArray$();
  _interceptors.JSFixedArray$ = dart.generic(E => {
    var __t$JSFixedArrayOfE = () => (__t$JSFixedArrayOfE = dart.constFn(E[_eval]("_interceptors|JSFixedArray<0>")))();
    var __t$JSMutableArrayOfE = () => (__t$JSMutableArrayOfE = dart.constFn(_interceptors.JSMutableArray$(E)))();
    class JSFixedArray extends __t$JSMutableArrayOfE() {
      static ['_#new#tearOff'](E) {
        return new (_interceptors.JSFixedArray$(E)).new();
      }
    }
    (JSFixedArray.new = function() {
      this.$ti = this.$ti || __t$JSFixedArrayOfE();
      dart.global.Object.getPrototypeOf(JSFixedArray).new.call(this);
      ;
    }).prototype = JSFixedArray.prototype;
    dart.addRtiResources(JSFixedArray, ["_interceptors|JSFixedArray"]);
    dart.setLibraryUri(JSFixedArray, I[28]);
    return JSFixedArray;
  });
  _interceptors.JSFixedArray = _interceptors.JSFixedArray$();
  _interceptors.JSExtendableArray$ = dart.generic(E => {
    var __t$JSExtendableArrayOfE = () => (__t$JSExtendableArrayOfE = dart.constFn(E[_eval]("_interceptors|JSExtendableArray<0>")))();
    var __t$JSMutableArrayOfE = () => (__t$JSMutableArrayOfE = dart.constFn(_interceptors.JSMutableArray$(E)))();
    class JSExtendableArray extends __t$JSMutableArrayOfE() {
      static ['_#new#tearOff'](E) {
        return new (_interceptors.JSExtendableArray$(E)).new();
      }
    }
    (JSExtendableArray.new = function() {
      this.$ti = this.$ti || __t$JSExtendableArrayOfE();
      dart.global.Object.getPrototypeOf(JSExtendableArray).new.call(this);
      ;
    }).prototype = JSExtendableArray.prototype;
    dart.addRtiResources(JSExtendableArray, ["_interceptors|JSExtendableArray"]);
    dart.setLibraryUri(JSExtendableArray, I[28]);
    return JSExtendableArray;
  });
  _interceptors.JSExtendableArray = _interceptors.JSExtendableArray$();
  _interceptors.JSUnmodifiableArray$ = dart.generic(E => {
    var __t$JSUnmodifiableArrayOfE = () => (__t$JSUnmodifiableArrayOfE = dart.constFn(E[_eval]("_interceptors|JSUnmodifiableArray<0>")))();
    var __t$JSArrayOfE = () => (__t$JSArrayOfE = dart.constFn(_interceptors.JSArray$(E)))();
    class JSUnmodifiableArray extends __t$JSArrayOfE() {
      static ['_#new#tearOff'](E) {
        return new (_interceptors.JSUnmodifiableArray$(E)).new();
      }
    }
    (JSUnmodifiableArray.new = function() {
      this.$ti = this.$ti || __t$JSUnmodifiableArrayOfE();
      dart.global.Object.getPrototypeOf(JSUnmodifiableArray).new.call(this);
      ;
    }).prototype = JSUnmodifiableArray.prototype;
    dart.addRtiResources(JSUnmodifiableArray, ["_interceptors|JSUnmodifiableArray"]);
    dart.setLibraryUri(JSUnmodifiableArray, I[28]);
    return JSUnmodifiableArray;
  });
  _interceptors.JSUnmodifiableArray = _interceptors.JSUnmodifiableArray$();
  var _current = dart.privateName(_interceptors, "_current");
  var _iterable = dart.privateName(_interceptors, "_iterable");
  var _length = dart.privateName(_interceptors, "_length");
  var _index = dart.privateName(_interceptors, "_index");
  _interceptors.ArrayIterator$ = dart.generic(E => {
    var __t$ArrayIteratorOfE = () => (__t$ArrayIteratorOfE = dart.constFn(E[_eval]("_interceptors|ArrayIterator<0>")))();
    var __t$JSArrayOfE = () => (__t$JSArrayOfE = dart.constFn(E[_eval]("_interceptors|JSArray<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    class ArrayIterator extends core.Object {
      static ['_#new#tearOff'](E, iterable) {
        if (iterable == null) dart.nullFailed(I[30], 676, 28, "iterable");
        return new (_interceptors.ArrayIterator$(E)).new(iterable);
      }
      get current() {
        return E[_as](this[_current]);
      }
      moveNext() {
        let length = this[_iterable][$length];
        if (this[_length] !== length) {
          dart.throw(T$.Object()[_as](_js_helper.throwConcurrentModificationError(this[_iterable])));
        }
        if (this[_index] >= length) {
          this[_current] = null;
          return false;
        }
        this[_current] = this[_iterable][$_get](this[_index]);
        this[_index] = this[_index] + 1;
        return true;
      }
    }
    (ArrayIterator.new = function(iterable) {
      if (iterable == null) dart.nullFailed(I[30], 676, 28, "iterable");
      this[_current] = null;
      this[_iterable] = iterable;
      this[_length] = iterable[$length];
      this[_index] = 0;
      this.$ti = this.$ti || __t$ArrayIteratorOfE();
      ;
    }).prototype = ArrayIterator.prototype;
    dart.addRtiResources(ArrayIterator, ["_interceptors|ArrayIterator", "core|Iterator"]);
    dart.setMethodSignature(ArrayIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(ArrayIterator))));
    dart.setGetterSignature(ArrayIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(ArrayIterator))));
    dart.setLibraryUri(ArrayIterator, I[28]);
    dart.setFieldSignature(ArrayIterator, () => dart.global.Object.setPrototypeOf({
      [_iterable]: {type: __t$JSArrayOfE(), isConst: false, isFinal: true, libraryUri: I[28]},
      [_length]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_index]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_current]: {type: __t$EN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(ArrayIterator))));
    return ArrayIterator;
  });
  _interceptors.ArrayIterator = _interceptors.ArrayIterator$();
  var _isInt32 = dart.privateName(_interceptors, "_isInt32");
  var _tdivSlow = dart.privateName(_interceptors, "_tdivSlow");
  var _shlPositive = dart.privateName(_interceptors, "_shlPositive");
  var _shrOtherPositive = dart.privateName(_interceptors, "_shrOtherPositive");
  var _shrUnsigned = dart.privateName(_interceptors, "_shrUnsigned");
  _interceptors.JSNumber = class JSNumber extends _interceptors.Interceptor {
    static ['_#new#tearOff']() {
      return new _interceptors.JSNumber.new();
    }
    [$compareTo](b) {
      T$.num()[_as](b);
      if (b == null) dart.argumentError(b);
      if (this < b) {
        return -1;
      } else if (this > b) {
        return 1;
      } else if (this === b) {
        if (this === 0) {
          let bIsNegative = b[$isNegative];
          if (this[$isNegative] === bIsNegative) return 0;
          if (this[$isNegative]) return -1;
          return 1;
        }
        return 0;
      } else if (this[$isNaN]) {
        if (b[$isNaN]) {
          return 0;
        }
        return 1;
      } else {
        return -1;
      }
    }
    get [$isNegative]() {
      return this === 0 ? 1 / this < 0 : this < 0;
    }
    get [$isNaN]() {
      return isNaN(this);
    }
    get [$isInfinite]() {
      return this == 1 / 0 || this == -1 / 0;
    }
    get [$isFinite]() {
      return isFinite(this);
    }
    [$remainder](b) {
      if (b == null) dart.argumentError(b);
      return this % b;
    }
    [$abs]() {
      return Math.abs(this);
    }
    get [$sign]() {
      return this > 0 ? 1 : this < 0 ? -1 : this;
    }
    [$toInt]() {
      if (this >= -2147483648 && this <= 2147483647) {
        return this | 0;
      }
      if (isFinite(this)) {
        return this[$truncateToDouble]() + 0;
      }
      dart.throw(new core.UnsupportedError.new("" + this));
    }
    [$truncate]() {
      return this[$toInt]();
    }
    [$ceil]() {
      return this[$ceilToDouble]()[$toInt]();
    }
    [$floor]() {
      return this[$floorToDouble]()[$toInt]();
    }
    [$round]() {
      if (this > 0) {
        if (this !== 1 / 0) {
          return Math.round(this);
        }
      } else if (this > -1 / 0) {
        return 0 - Math.round(0 - this);
      }
      dart.throw(new core.UnsupportedError.new("" + this));
    }
    [$ceilToDouble]() {
      return Math.ceil(this);
    }
    [$floorToDouble]() {
      return Math.floor(this);
    }
    [$roundToDouble]() {
      if (this < 0) {
        return -Math.round(-this);
      } else {
        return Math.round(this);
      }
    }
    [$truncateToDouble]() {
      return this < 0 ? this[$ceilToDouble]() : this[$floorToDouble]();
    }
    [$clamp](lowerLimit, upperLimit) {
      if (lowerLimit == null) dart.argumentError(lowerLimit);
      if (upperLimit == null) dart.argumentError(upperLimit);
      if (lowerLimit[$compareTo](upperLimit) > 0) {
        dart.throw(_js_helper.argumentErrorValue(lowerLimit));
      }
      if (this[$compareTo](lowerLimit) < 0) return lowerLimit;
      if (this[$compareTo](upperLimit) > 0) return upperLimit;
      return this;
    }
    [$toDouble]() {
      return this;
    }
    [$toStringAsFixed](fractionDigits) {
      if (fractionDigits == null) dart.argumentError(fractionDigits);
      if (fractionDigits < 0 || fractionDigits > 20) {
        dart.throw(new core.RangeError.range(fractionDigits, 0, 20, "fractionDigits"));
      }
      let result = this.toFixed(fractionDigits);
      if (this === 0 && this[$isNegative]) return "-" + result;
      return result;
    }
    [$toStringAsExponential](fractionDigits = null) {
      let result = null;
      if (fractionDigits != null) {
        let _fractionDigits = fractionDigits;
        if (_fractionDigits < 0 || _fractionDigits > 20) {
          dart.throw(new core.RangeError.range(_fractionDigits, 0, 20, "fractionDigits"));
        }
        result = this.toExponential(_fractionDigits);
      } else {
        result = this.toExponential();
      }
      if (this === 0 && this[$isNegative]) return "-" + dart.str(result);
      return result;
    }
    [$toStringAsPrecision](precision) {
      if (precision == null) dart.argumentError(precision);
      if (precision < 1 || precision > 21) {
        dart.throw(new core.RangeError.range(precision, 1, 21, "precision"));
      }
      let result = this.toPrecision(precision);
      if (this === 0 && this[$isNegative]) return "-" + result;
      return result;
    }
    [$toRadixString](radix) {
      if (radix == null) dart.argumentError(radix);
      if (radix < 2 || radix > 36) {
        dart.throw(new core.RangeError.range(radix, 2, 36, "radix"));
      }
      let result = this.toString(radix);
      if (result[$codeUnitAt](result.length - 1) !== 41) {
        return result;
      }
      return _interceptors.JSNumber._handleIEtoString(result);
    }
    static _handleIEtoString(result) {
      if (result == null) dart.nullFailed(I[31], 206, 42, "result");
      let match = /^([\da-z]+)(?:\.([\da-z]+))?\(e\+(\d+)\)$/.exec(result);
      if (match == null) {
        dart.throw(new core.UnsupportedError.new("Unexpected toString result: " + dart.str(result)));
      }
      result = match[$_get](1);
      let exponent = +match[$_get](3);
      if (match[$_get](2) != null) {
        result = result + match[$_get](2);
        exponent = exponent - match[$_get](2).length;
      }
      return dart.notNull(result) + "0"[$times](exponent);
    }
    [$toString]() {
      if (this === 0 && 1 / this < 0) {
        return "-0.0";
      } else {
        return "" + this;
      }
    }
    get [$hashCode]() {
      let intValue = this | 0;
      if (this === intValue) return 536870911 & intValue;
      let absolute = Math.abs(this);
      let lnAbsolute = Math.log(absolute);
      let log2 = lnAbsolute / 0.6931471805599453;
      let floorLog2 = log2 | 0;
      let factor = Math.pow(2, floorLog2);
      let scaled = absolute < 1 ? absolute / factor : factor / absolute;
      let rescaled1 = scaled * 9007199254740992;
      let rescaled2 = scaled * 3542243181176521;
      let d1 = rescaled1 | 0;
      let d2 = rescaled2 | 0;
      let d3 = floorLog2;
      let h = 536870911 & (d1 + d2) * (601 * 997) + d3 * 1259;
      return h;
    }
    [$_negate]() {
      return -this;
    }
    [$plus](other) {
      if (other == null) dart.argumentError(other);
      return this + other;
    }
    [$minus](other) {
      if (other == null) dart.argumentError(other);
      return this - other;
    }
    [$divide](other) {
      if (other == null) dart.argumentError(other);
      return this / other;
    }
    [$times](other) {
      if (other == null) dart.argumentError(other);
      return this * other;
    }
    [$modulo](other) {
      if (other == null) dart.argumentError(other);
      let result = this % other;
      if (result === 0) {
        return 0;
      }
      if (result > 0) return result;
      if (other < 0) {
        return result - other;
      } else {
        return result + other;
      }
    }
    [_isInt32](value) {
      return (value | 0) === value;
    }
    [$floorDivide](other) {
      if (other == null) dart.argumentError(other);
      if (this[_isInt32](this) && this[_isInt32](other) && 0 !== other && -1 !== other) {
        return this / other | 0;
      } else {
        return this[_tdivSlow](other);
      }
    }
    [_tdivSlow](other) {
      if (other == null) dart.nullFailed(I[31], 322, 21, "other");
      return (this / other)[$toInt]();
    }
    [$leftShift](other) {
      if (other == null) dart.argumentError(other);
      if (other < 0) _js_helper.throwArgumentErrorValue(other);
      return this[_shlPositive](other);
    }
    [_shlPositive](other) {
      return other > 31 ? 0 : this << other >>> 0;
    }
    [$rightShift](other) {
      if (other == null) dart.argumentError(other);
      if (other < 0) _js_helper.throwArgumentErrorValue(other);
      return this[_shrOtherPositive](other);
    }
    [$tripleShift](other) {
      if (other == null) dart.argumentError(other);
      if (other < 0) _js_helper.throwArgumentErrorValue(other);
      return this[_shrUnsigned](other);
    }
    [_shrOtherPositive](other) {
      return this > 0 ? this[_shrUnsigned](other) : this >> (other > 31 ? 31 : other) >>> 0;
    }
    [_shrUnsigned](other) {
      return other > 31 ? 0 : this >>> other;
    }
    [$bitAnd](other) {
      if (other == null) dart.argumentError(other);
      return (this & other) >>> 0;
    }
    [$bitOr](other) {
      if (other == null) dart.argumentError(other);
      return (this | other) >>> 0;
    }
    [$bitXor](other) {
      if (other == null) dart.argumentError(other);
      return (this ^ other) >>> 0;
    }
    [$lessThan](other) {
      if (other == null) dart.argumentError(other);
      return this < other;
    }
    [$greaterThan](other) {
      if (other == null) dart.argumentError(other);
      return this > other;
    }
    [$lessOrEquals](other) {
      if (other == null) dart.argumentError(other);
      return this <= other;
    }
    [$greaterOrEquals](other) {
      if (other == null) dart.argumentError(other);
      return this >= other;
    }
    get [$isEven]() {
      return (this & 1) === 0;
    }
    get [$isOdd]() {
      return (this & 1) === 1;
    }
    [$toUnsigned](width) {
      if (width == null) dart.argumentError(width);
      return (this & (1)[$leftShift](width) - 1) >>> 0;
    }
    [$toSigned](width) {
      if (width == null) dart.argumentError(width);
      let signMask = (1)[$leftShift](width - 1);
      return ((this & signMask - 1) >>> 0) - ((this & signMask) >>> 0);
    }
    get [$bitLength]() {
      let nonneg = this < 0 ? -this - 1 : this;
      let wordBits = 32;
      while (nonneg >= 4294967296) {
        nonneg = (nonneg / 4294967296)[$truncate]();
        wordBits = wordBits + 32;
      }
      return wordBits - _interceptors.JSNumber._clz32(nonneg);
    }
    static _clz32(uint32) {
      return Math.clz32(uint32);
    }
    [$modPow](e, m) {
      if (e == null) dart.argumentError(e);
      if (m == null) dart.argumentError(m);
      if (!T$.int()[_is](this)) _js_helper.throwArgumentErrorValue(this);
      if (e < 0) dart.throw(new core.RangeError.range(e, 0, null, "exponent"));
      if (m <= 0) dart.throw(new core.RangeError.range(m, 1, null, "modulus"));
      if (e === 0) return 1;
      if (this < -9007199254740991.0 || this > 9007199254740991.0) {
        dart.throw(new core.RangeError.range(this, -9007199254740991.0, 9007199254740991.0, "receiver"));
      }
      if (e > 9007199254740991.0) {
        dart.throw(new core.RangeError.range(e, 0, 9007199254740991.0, "exponent"));
      }
      if (m > 9007199254740991.0) {
        dart.throw(new core.RangeError.range(e, 1, 9007199254740991.0, "modulus"));
      }
      if (m > 94906265) {
        return core._BigIntImpl.from(this).modPow(core._BigIntImpl.from(e), core._BigIntImpl.from(m)).toInt();
      }
      let b = this;
      if (b < 0 || b > m) {
        b = b[$modulo](m);
      }
      let r = 1;
      while (e > 0) {
        if (e[$isOdd]) {
          r = (r * b)[$modulo](m);
        }
        e = (e / 2)[$truncate]();
        b = (b * b)[$modulo](m);
      }
      return r;
    }
    static _binaryGcd(x, y, inv) {
      let s = 1;
      if (!inv) {
        while (x[$isEven] && y[$isEven]) {
          x = (x / 2)[$truncate]();
          y = (y / 2)[$truncate]();
          s = s * 2;
        }
        if (y[$isOdd]) {
          let t = x;
          x = y;
          y = t;
        }
      }
      let ac = x[$isEven];
      let u = x;
      let v = y;
      let a = 1;
      let b = 0;
      let c = 0;
      let d = 1;
      do {
        while (u[$isEven]) {
          u = (u / 2)[$truncate]();
          if (ac) {
            if (!a[$isEven] || !b[$isEven]) {
              a = a + y;
              b = b - x;
            }
            a = (a / 2)[$truncate]();
          } else if (!b[$isEven]) {
            b = b - x;
          }
          b = (b / 2)[$truncate]();
        }
        while (v[$isEven]) {
          v = (v / 2)[$truncate]();
          if (ac) {
            if (!c[$isEven] || !d[$isEven]) {
              c = c + y;
              d = d - x;
            }
            c = (c / 2)[$truncate]();
          } else if (!d[$isEven]) {
            d = d - x;
          }
          d = (d / 2)[$truncate]();
        }
        if (u >= v) {
          u = u - v;
          if (ac) a = a - c;
          b = b - d;
        } else {
          v = v - u;
          if (ac) c = c - a;
          d = d - b;
        }
      } while (u !== 0);
      if (!inv) return s * v;
      if (v !== 1) dart.throw(core.Exception.new("Not coprime"));
      if (d < 0) {
        d = d + x;
        if (d < 0) d = d + x;
      } else if (d > x) {
        d = d - x;
        if (d > x) d = d - x;
      }
      return d;
    }
    [$modInverse](m) {
      if (m == null) dart.argumentError(m);
      if (!T$.int()[_is](this)) _js_helper.throwArgumentErrorValue(this);
      if (m <= 0) dart.throw(new core.RangeError.range(m, 1, null, "modulus"));
      if (m === 1) return 0;
      let t = this;
      if (t < 0 || t >= m) t = t[$modulo](m);
      if (t === 1) return 1;
      if (t === 0 || t[$isEven] && m[$isEven]) {
        dart.throw(core.Exception.new("Not coprime"));
      }
      return _interceptors.JSNumber._binaryGcd(m, t, true);
    }
    [$gcd](other) {
      if (other == null) dart.argumentError(other);
      if (!T$.int()[_is](this)) _js_helper.throwArgumentErrorValue(this);
      let x = this[$abs]();
      let y = other[$abs]();
      if (x === 0) return y;
      if (y === 0) return x;
      if (x === 1 || y === 1) return 1;
      return _interceptors.JSNumber._binaryGcd(x, y, false);
    }
    [$bitNot]() {
      return ~this >>> 0;
    }
  };
  (_interceptors.JSNumber.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JSNumber).new.call(this);
    ;
  }).prototype = _interceptors.JSNumber.prototype;
  dart.addRtiResources(_interceptors.JSNumber, ["_interceptors|JSNumber", "core|double", "_js_helper|TrustedGetRuntimeType", "core|num", "core|Comparable"]);
  dart.setMethodSignature(_interceptors.JSNumber, () => dart.global.Object.setPrototypeOf({
    [$compareTo]: T$.ObjectNToint(),
    [$remainder]: T$.numToJSNumber(),
    [$abs]: T$.VoidToJSNumber(),
    [$toInt]: T$.VoidToint(),
    [$truncate]: T$.VoidToint(),
    [$ceil]: T$.VoidToint(),
    [$floor]: T$.VoidToint(),
    [$round]: T$.VoidToint(),
    [$ceilToDouble]: T$.VoidTodouble(),
    [$floorToDouble]: T$.VoidTodouble(),
    [$roundToDouble]: T$.VoidTodouble(),
    [$truncateToDouble]: T$.VoidTodouble(),
    [$clamp]: T$.numAndnumTonum(),
    [$toDouble]: T$.VoidTodouble(),
    [$toStringAsFixed]: T$.intToString(),
    [$toStringAsExponential]: T$.intNToString(),
    [$toStringAsPrecision]: T$.intToString(),
    [$toRadixString]: T$.intToString(),
    [$_negate]: T$.VoidToJSNumber(),
    [$plus]: T$.numToJSNumber(),
    [$minus]: T$.numToJSNumber(),
    [$divide]: T$.numTodouble(),
    [$times]: T$.numToJSNumber(),
    [$modulo]: T$.numToJSNumber(),
    [_isInt32]: T$.numTobool(),
    [$floorDivide]: T$.numToint(),
    [_tdivSlow]: T$.numToint(),
    [$leftShift]: T$.numToint(),
    [_shlPositive]: T$.numToint(),
    [$rightShift]: T$.numToint(),
    [$tripleShift]: T$.numToint(),
    [_shrOtherPositive]: T$.numToint(),
    [_shrUnsigned]: T$.numToint(),
    [$bitAnd]: T$.numToint(),
    [$bitOr]: T$.numToint(),
    [$bitXor]: T$.numToint(),
    [$lessThan]: T$.numTobool(),
    [$greaterThan]: T$.numTobool(),
    [$lessOrEquals]: T$.numTobool(),
    [$greaterOrEquals]: T$.numTobool(),
    [$toUnsigned]: T$.intToint(),
    [$toSigned]: T$.intToint(),
    [$modPow]: T$.intAndintToint(),
    [$modInverse]: T$.intToint(),
    [$gcd]: T$.intToint(),
    [$bitNot]: T$.VoidToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_interceptors.JSNumber))));
  dart.setStaticMethodSignature(_interceptors.JSNumber, () => ['_handleIEtoString', '_clz32', '_binaryGcd']);
  dart.setGetterSignature(_interceptors.JSNumber, () => dart.global.Object.setPrototypeOf({
    [$isNegative]: T$.bool(),
    [$isNaN]: T$.bool(),
    [$isInfinite]: T$.bool(),
    [$isFinite]: T$.bool(),
    [$sign]: T$.JSNumber(),
    [$isEven]: T$.bool(),
    [$isOdd]: T$.bool(),
    [$bitLength]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_interceptors.JSNumber))));
  dart.setLibraryUri(_interceptors.JSNumber, I[28]);
  dart.setStaticFieldSignature(_interceptors.JSNumber, () => ['_MIN_INT32', '_MAX_INT32']);
  dart.defineLazy(_interceptors.JSNumber, {
    /*_interceptors.JSNumber._MIN_INT32*/get _MIN_INT32() {
      return -2147483648;
    },
    /*_interceptors.JSNumber._MAX_INT32*/get _MAX_INT32() {
      return 2147483647;
    }
  }, false);
  dart.definePrimitiveHashCode(_interceptors.JSNumber.prototype);
  dart.registerExtension("Number", _interceptors.JSNumber);
  _interceptors.JSInt = class JSInt extends _interceptors.JSNumber {
    static ['_#new#tearOff']() {
      return new _interceptors.JSInt.new();
    }
  };
  (_interceptors.JSInt.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JSInt).new.call(this);
    ;
  }).prototype = _interceptors.JSInt.prototype;
  dart.addRtiResources(_interceptors.JSInt, ["_interceptors|JSInt", "core|int", "core|num", "core|Comparable"]);
  dart.setLibraryUri(_interceptors.JSInt, I[28]);
  _interceptors.JSNumNotInt = class JSNumNotInt extends _interceptors.JSNumber {
    static ['_#new#tearOff']() {
      return new _interceptors.JSNumNotInt.new();
    }
  };
  (_interceptors.JSNumNotInt.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JSNumNotInt).new.call(this);
    ;
  }).prototype = _interceptors.JSNumNotInt.prototype;
  dart.addRtiResources(_interceptors.JSNumNotInt, ["_interceptors|JSNumNotInt", "core|double", "core|num", "core|Comparable"]);
  dart.setLibraryUri(_interceptors.JSNumNotInt, I[28]);
  var _defaultSplit = dart.privateName(_interceptors, "_defaultSplit");
  _interceptors.JSString = class JSString extends _interceptors.Interceptor {
    static ['_#new#tearOff']() {
      return new _interceptors.JSString.new();
    }
    [$codeUnitAt](index) {
      if (index == null) dart.argumentError(index);
      let len = this.length;
      if (index < 0 || index >= len) {
        dart.throw(new core.IndexError.withLength(index, len, {indexable: this, name: "index"}));
      }
      return this.charCodeAt(index);
    }
    [$allMatches](string, start = 0) {
      if (string == null) dart.argumentError(string);
      if (start == null) dart.argumentError(start);
      let len = string.length;
      if (0 > start || start > len) {
        dart.throw(new core.RangeError.range(start, 0, len));
      }
      return _js_helper.allMatchesInStringUnchecked(this, string, start);
    }
    [$matchAsPrefix](string, start = 0) {
      if (string == null) dart.argumentError(string);
      if (start == null) dart.argumentError(start);
      let stringLength = string.length;
      if (start < 0 || start > stringLength) {
        dart.throw(new core.RangeError.range(start, 0, stringLength));
      }
      let thisLength = this.length;
      if (start + thisLength > stringLength) return null;
      for (let i = 0; i < thisLength; i = i + 1) {
        if (string[$codeUnitAt](start + i) !== this[$codeUnitAt](i)) {
          return null;
        }
      }
      return new _js_helper.StringMatch.new(start, string, this);
    }
    [$plus](other) {
      if (other == null) dart.argumentError(other);
      return this + other;
    }
    [$endsWith](other) {
      if (other == null) dart.argumentError(other);
      let otherLength = other.length;
      let thisLength = this.length;
      if (otherLength > thisLength) return false;
      return other === this[$substring](thisLength - otherLength);
    }
    [$replaceAll](from, to) {
      if (from == null) dart.nullFailed(I[32], 66, 29, "from");
      if (to == null) dart.argumentError(to);
      return _js_helper.stringReplaceAllUnchecked(this, from, to);
    }
    [$replaceAllMapped](from, convert) {
      if (from == null) dart.nullFailed(I[32], 71, 35, "from");
      if (convert == null) dart.nullFailed(I[32], 71, 64, "convert");
      return this[$splitMapJoin](from, {onMatch: convert});
    }
    [$splitMapJoin](from, opts) {
      if (from == null) dart.nullFailed(I[32], 76, 31, "from");
      let onMatch = opts && 'onMatch' in opts ? opts.onMatch : null;
      let onNonMatch = opts && 'onNonMatch' in opts ? opts.onNonMatch : null;
      return _js_helper.stringReplaceAllFuncUnchecked(this, from, onMatch, onNonMatch);
    }
    [$replaceFirst](from, to, startIndex = 0) {
      if (from == null) dart.nullFailed(I[32], 82, 31, "from");
      if (to == null) dart.argumentError(to);
      if (startIndex == null) dart.argumentError(startIndex);
      core.RangeError.checkValueInInterval(startIndex, 0, this.length, "startIndex");
      return _js_helper.stringReplaceFirstUnchecked(this, from, to, startIndex);
    }
    [$replaceFirstMapped](from, replace, startIndex = 0) {
      if (from == null) dart.nullFailed(I[32], 90, 15, "from");
      if (replace == null) dart.argumentError(replace);
      if (startIndex == null) dart.argumentError(startIndex);
      core.RangeError.checkValueInInterval(startIndex, 0, this.length, "startIndex");
      return _js_helper.stringReplaceFirstMappedUnchecked(this, from, replace, startIndex);
    }
    [$split](pattern) {
      if (pattern == null) dart.argumentError(pattern);
      if (typeof pattern == 'string') {
        return G.JSArrayOfString().of(this.split(pattern));
      } else if (T$.JSSyntaxRegExp()[_is](pattern) && _js_helper.regExpCaptureCount(pattern) === 0) {
        let re = _js_helper.regExpGetNative(pattern);
        return G.JSArrayOfString().of(this.split(re));
      } else {
        return this[_defaultSplit](pattern);
      }
    }
    [$replaceRange](start, end, replacement) {
      if (start == null) dart.argumentError(start);
      if (replacement == null) dart.argumentError(replacement);
      let e = core.RangeError.checkValidRange(start, end, this.length);
      return _js_helper.stringReplaceRangeUnchecked(this, start, e, replacement);
    }
    [_defaultSplit](pattern) {
      if (pattern == null) dart.nullFailed(I[32], 116, 38, "pattern");
      let result = G.JSArrayOfString().of([]);
      let start = 0;
      let length = 1;
      for (let match of pattern[$allMatches](this)) {
        let matchStart = match.start;
        let matchEnd = match.end;
        length = matchEnd - matchStart;
        if (length === 0 && start === matchStart) {
          continue;
        }
        let end = matchStart;
        result[$add](this[$substring](start, end));
        start = matchEnd;
      }
      if (start < this.length || length > 0) {
        result[$add](this[$substring](start));
      }
      return result;
    }
    [$startsWith](pattern, index = 0) {
      if (pattern == null) dart.nullFailed(I[32], 147, 27, "pattern");
      if (index == null) dart.argumentError(index);
      let length = this.length;
      if (index < 0 || index > length) {
        dart.throw(new core.RangeError.range(index, 0, this.length));
      }
      if (typeof pattern == 'string') {
        let other = pattern;
        let otherLength = other.length;
        let endIndex = index + otherLength;
        if (endIndex > length) return false;
        return other === this.substring(index, endIndex);
      }
      return pattern[$matchAsPrefix](this, index) != null;
    }
    [$substring](start, end = null) {
      if (start == null) dart.argumentError(start);
      end = core.RangeError.checkValidRange(start, end, this.length);
      return this.substring(start, end);
    }
    [$toLowerCase]() {
      return this.toLowerCase();
    }
    [$toUpperCase]() {
      return this.toUpperCase();
    }
    static _isWhitespace(codeUnit) {
      if (codeUnit < 256) {
        switch (codeUnit) {
          case 9:
          case 10:
          case 11:
          case 12:
          case 13:
          case 32:
          case 133:
          case 160:
            {
              return true;
            }
          default:
            {
              return false;
            }
        }
      }
      switch (codeUnit) {
        case 5760:
        case 8192:
        case 8193:
        case 8194:
        case 8195:
        case 8196:
        case 8197:
        case 8198:
        case 8199:
        case 8200:
        case 8201:
        case 8202:
        case 8232:
        case 8233:
        case 8239:
        case 8287:
        case 12288:
        case 65279:
          {
            return true;
          }
        default:
          {
            return false;
          }
      }
    }
    static _skipLeadingWhitespace(string, index) {
      if (string == null) dart.nullFailed(I[32], 242, 44, "string");
      if (index == null) dart.argumentError(index);
      let stringLength = string.length;
      while (index < stringLength) {
        let codeUnit = string[$codeUnitAt](index);
        if (codeUnit !== 32 && codeUnit !== 13 && !_interceptors.JSString._isWhitespace(codeUnit)) {
          break;
        }
        index = index + 1;
      }
      return index;
    }
    static _skipTrailingWhitespace(string, index) {
      if (string == null) dart.nullFailed(I[32], 261, 45, "string");
      if (index == null) dart.argumentError(index);
      while (index > 0) {
        let codeUnit = string[$codeUnitAt](index - 1);
        if (codeUnit !== 32 && codeUnit !== 13 && !_interceptors.JSString._isWhitespace(codeUnit)) {
          break;
        }
        index = index - 1;
      }
      return index;
    }
    [$trim]() {
      let result = this.trim();
      let length = result.length;
      if (length === 0) return result;
      let firstCode = result[$codeUnitAt](0);
      let startIndex = 0;
      if (firstCode === 133) {
        startIndex = _interceptors.JSString._skipLeadingWhitespace(result, 1);
        if (startIndex === length) return "";
      }
      let endIndex = length;
      let lastCode = result[$codeUnitAt](endIndex - 1);
      if (lastCode === 133) {
        endIndex = _interceptors.JSString._skipTrailingWhitespace(result, endIndex - 1);
      }
      if (startIndex === 0 && endIndex === length) return result;
      return result.substring(startIndex, endIndex);
    }
    [$trimLeft]() {
      let result = this.trimStart();
      if (result.length === 0) return result;
      let firstCode = result[$codeUnitAt](0);
      if (firstCode !== 133) return result;
      let startIndex = _interceptors.JSString._skipLeadingWhitespace(result, 1);
      return result.substring(startIndex);
    }
    [$trimRight]() {
      let result = this.trimEnd();
      let endIndex = result.length;
      if (endIndex === 0) return result;
      let lastCode = result[$codeUnitAt](endIndex - 1);
      if (lastCode !== 133) return result;
      endIndex = _interceptors.JSString._skipTrailingWhitespace(result, endIndex - 1);
      return result.substring(0, endIndex);
    }
    [$times](times) {
      if (times == null) dart.argumentError(times);
      if (0 >= times) return "";
      if (times === 1 || this.length === 0) return this;
      if (times !== times >>> 0) {
        dart.throw(C[51] || CT.C51);
      }
      let result = "";
      let s = this;
      while (true) {
        if ((times & 1) === 1) result = s + result;
        times = times >>> 1;
        if (times === 0) break;
        s = s + s;
      }
      return result;
    }
    [$padLeft](width, padding = " ") {
      if (width == null) dart.argumentError(width);
      if (padding == null) dart.nullFailed(I[32], 358, 48, "padding");
      let delta = width - this.length;
      if (delta <= 0) return this;
      return padding[$times](delta) + this;
    }
    [$padRight](width, padding = " ") {
      if (width == null) dart.argumentError(width);
      if (padding == null) dart.nullFailed(I[32], 365, 49, "padding");
      let delta = width - this.length;
      if (delta <= 0) return this;
      return this[$plus](padding[$times](delta));
    }
    get [$codeUnits]() {
      return new _internal.CodeUnits.new(this);
    }
    get [$runes]() {
      return new core.Runes.new(this);
    }
    [$indexOf](pattern, start = 0) {
      if (pattern == null) dart.argumentError(pattern);
      if (start == null) dart.argumentError(start);
      if (start < 0 || start > this.length) {
        dart.throw(new core.RangeError.range(start, 0, this.length));
      }
      if (typeof pattern == 'string') {
        return _js_helper.stringIndexOfStringUnchecked(this, pattern, start);
      }
      if (T$.JSSyntaxRegExp()[_is](pattern)) {
        let re = pattern;
        let match = _js_helper.firstMatchAfter(re, this, start);
        return match == null ? -1 : match.start;
      }
      let length = this.length;
      for (let i = start; i <= length; i = i + 1) {
        if (pattern[$matchAsPrefix](this, i) != null) return i;
      }
      return -1;
    }
    [$lastIndexOf](pattern, _start = null) {
      let t$3624;
      if (pattern == null) dart.argumentError(pattern);
      let length = this.length;
      let start = (t$3624 = _start, t$3624 == null ? length : t$3624);
      if (dart.notNull(start) < 0 || dart.notNull(start) > length) {
        dart.throw(new core.RangeError.range(start, 0, length));
      }
      if (typeof pattern == 'string') {
        let other = pattern;
        if (dart.notNull(start) + other.length > length) {
          start = length - other.length;
        }
        return _js_helper.stringLastIndexOfUnchecked(this, other, start);
      }
      for (let i = start; dart.notNull(i) >= 0; i = dart.notNull(i) - 1) {
        if (pattern[$matchAsPrefix](this, i) != null) return i;
      }
      return -1;
    }
    [$contains](other, startIndex = 0) {
      if (other == null) dart.argumentError(other);
      if (startIndex == null) dart.argumentError(startIndex);
      if (startIndex < 0 || startIndex > this.length) {
        dart.throw(new core.RangeError.range(startIndex, 0, this.length));
      }
      return _js_helper.stringContainsUnchecked(this, other, startIndex);
    }
    get [$isEmpty]() {
      return this.length === 0;
    }
    get [$isNotEmpty]() {
      return !this[$isEmpty];
    }
    [$compareTo](other) {
      T$.String()[_as](other);
      if (other == null) dart.argumentError(other);
      return this === other ? 0 : this < other ? -1 : 1;
    }
    [$toString]() {
      return this;
    }
    get [$hashCode]() {
      let hash = 0;
      let length = this.length;
      for (let i = 0; i < length; i = i + 1) {
        hash = 536870911 & hash + this.charCodeAt(i);
        hash = 536870911 & hash + ((524287 & hash) << 10);
        hash = hash ^ hash >> 6;
      }
      hash = 536870911 & hash + ((67108863 & hash) << 3);
      hash = hash ^ hash >> 11;
      return 536870911 & hash + ((16383 & hash) << 15);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$.String());
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.argumentError(index);
      if (!(index >= 0 && index < this.length)) {
        dart.throw(_js_helper.diagnoseIndexError(this, index));
      }
      return this[index];
    }
  };
  (_interceptors.JSString.new = function() {
    dart.global.Object.getPrototypeOf(_interceptors.JSString).new.call(this);
    ;
  }).prototype = _interceptors.JSString.prototype;
  dart.addRtiResources(_interceptors.JSString, ["_interceptors|JSString", "core|String", "_interceptors|JSIndexable", "_js_helper|TrustedGetRuntimeType", "core|Comparable", "core|Pattern"]);
  dart.setMethodSignature(_interceptors.JSString, () => dart.global.Object.setPrototypeOf({
    [$codeUnitAt]: T$.intToint(),
    [$allMatches]: T$.StringAndintToIterableOfMatch(),
    [$matchAsPrefix]: T$.StringAndintToMatchN(),
    [$plus]: T$.StringToString(),
    [$endsWith]: T$.StringTobool(),
    [$replaceAll]: T$.PatternAndStringToString(),
    [$replaceAllMapped]: T$.PatternAndFnToString(),
    [$splitMapJoin]: T$.Pattern__ToString(),
    [$replaceFirst]: T$.PatternAndStringAndintToString(),
    [$replaceFirstMapped]: T$.PatternAndFnAndintToString(),
    [$split]: T$.PatternToListOfString(),
    [$replaceRange]: T$.intAndintNAndStringToString(),
    [_defaultSplit]: T$.PatternToListOfString(),
    [$startsWith]: T$.PatternAndintTobool(),
    [$substring]: T$.intAndintNToString(),
    [$toLowerCase]: T$.VoidToString(),
    [$toUpperCase]: T$.VoidToString(),
    [$trim]: T$.VoidToString(),
    [$trimLeft]: T$.VoidToString(),
    [$trimRight]: T$.VoidToString(),
    [$times]: T$.intToString(),
    [$padLeft]: T$.intAndStringToString(),
    [$padRight]: T$.intAndStringToString(),
    [$indexOf]: T$.PatternAndintToint(),
    [$lastIndexOf]: T$.PatternAndintNToint(),
    [$contains]: T$.PatternAndintTobool(),
    [$compareTo]: T$.ObjectNToint(),
    [$_get]: T$.intToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_interceptors.JSString))));
  dart.setStaticMethodSignature(_interceptors.JSString, () => ['_isWhitespace', '_skipLeadingWhitespace', '_skipTrailingWhitespace']);
  dart.setGetterSignature(_interceptors.JSString, () => dart.global.Object.setPrototypeOf({
    [$codeUnits]: T$.ListOfint(),
    [$runes]: T$.Runes(),
    [$isEmpty]: T$.bool(),
    [$isNotEmpty]: T$.bool(),
    [$length]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_interceptors.JSString))));
  dart.setLibraryUri(_interceptors.JSString, I[28]);
  dart.definePrimitiveHashCode(_interceptors.JSString.prototype);
  dart.registerExtension("String", _interceptors.JSString);
  _interceptors.findInterceptorConstructorForType = function findInterceptorConstructorForType(type) {
  };
  _interceptors.findConstructorForNativeSubclassType = function findConstructorForNativeSubclassType(type, name) {
    if (name == null) dart.nullFailed(I[29], 288, 57, "name");
  };
  _interceptors.getNativeInterceptor = function getNativeInterceptor(object) {
  };
  _interceptors.setDispatchProperty = function setDispatchProperty(object, value) {
  };
  _interceptors.findInterceptorForType = function findInterceptorForType(type) {
  };
  dart.defineLazy(_interceptors, {
    /*_interceptors.jsNull*/get jsNull() {
      return new _interceptors.JSNull.new();
    }
  }, false);
  var _string$ = dart.privateName(_internal, "_string");
  var _closeGap = dart.privateName(collection, "_closeGap");
  var _filter = dart.privateName(collection, "_filter");
  collection.ListBase$ = dart.generic(E => {
    var __t$ListBaseOfE = () => (__t$ListBaseOfE = dart.constFn(E[_eval]("collection|ListBase<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$VoidToNE = () => (__t$VoidToNE = dart.constFn(E[_eval]("0()?")))();
    var __t$EAndEToE = () => (__t$EAndEToE = dart.constFn(E[_eval]("0(0,0)")))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(E[_eval]("core|List<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$ObjectNToIterableOfE = () => (__t$ObjectNToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|Object?)")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~(~(0))")))();
    var __t$FnTobool = () => (__t$FnTobool = dart.constFn(E[_eval]("core|bool(core|bool(0))")))();
    var __t$Fn__ToE = () => (__t$Fn__ToE = dart.constFn(E[_eval]("0(core|bool(0){orElse:core|Object?})")))();
    var __t$FnToIterableOfE = () => (__t$FnToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|bool(0))")))();
    var __t$FnToIterableOfT = () => (__t$FnToIterableOfT = dart.constFn(E[_eval]("core|Iterable<0^>(0^(0))<core|Object?>")))();
    var __t$FnToIterableOfT$ = () => (__t$FnToIterableOfT$ = dart.constFn(E[_eval]("core|Iterable<0^>(core|Iterable<0^>(0))<core|Object?>")))();
    var __t$ObjectNToE = () => (__t$ObjectNToE = dart.constFn(E[_eval]("0(core|Object?)")))();
    var __t$TAndFnToT = () => (__t$TAndFnToT = dart.constFn(E[_eval]("0^(0^,0^(0^,0))<core|Object?>")))();
    var __t$intToIterableOfE = () => (__t$intToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|int)")))();
    var __t$__ToListOfE = () => (__t$__ToListOfE = dart.constFn(E[_eval]("core|List<0>({growable:core|bool})")))();
    var __t$VoidToSetOfE = () => (__t$VoidToSetOfE = dart.constFn(E[_eval]("core|Set<0>()")))();
    var __t$FnTovoid$ = () => (__t$FnTovoid$ = dart.constFn(E[_eval]("~(core|bool(0))")))();
    var __t$FnAndboolTovoid = () => (__t$FnAndboolTovoid = dart.constFn(E[_eval]("~(core|bool(0),core|bool)")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    var __t$FnTovoid$0 = () => (__t$FnTovoid$0 = dart.constFn(E[_eval]("~([core|int(0,0)?])")))();
    var __t$VoidToMapOfint$E = () => (__t$VoidToMapOfint$E = dart.constFn(E[_eval]("core|Map<core|int,0>()")))();
    var __t$ObjectNToListOfE = () => (__t$ObjectNToListOfE = dart.constFn(E[_eval]("core|List<0>(core|Object?)")))();
    var __t$intAndintNToListOfE = () => (__t$intAndintNToListOfE = dart.constFn(E[_eval]("core|List<0>(core|int[core|int?])")))();
    var __t$intAndintToIterableOfE = () => (__t$intAndintToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|int,core|int)")))();
    var __t$FnAndintToint = () => (__t$FnAndintToint = dart.constFn(E[_eval]("core|int(core|bool(0)[core|int])")))();
    var __t$FnAndintNToint = () => (__t$FnAndintNToint = dart.constFn(E[_eval]("core|int(core|bool(0)[core|int?])")))();
    var __t$ListIteratorOfE = () => (__t$ListIteratorOfE = dart.constFn(_internal.ListIterator$(E)))();
    var __t$FollowedByIterableOfE = () => (__t$FollowedByIterableOfE = dart.constFn(_internal.FollowedByIterable$(E)))();
    var __t$WhereIterableOfE = () => (__t$WhereIterableOfE = dart.constFn(_internal.WhereIterable$(E)))();
    var __t$SubListIterableOfE = () => (__t$SubListIterableOfE = dart.constFn(_internal.SubListIterable$(E)))();
    var __t$SkipWhileIterableOfE = () => (__t$SkipWhileIterableOfE = dart.constFn(_internal.SkipWhileIterable$(E)))();
    var __t$TakeWhileIterableOfE = () => (__t$TakeWhileIterableOfE = dart.constFn(_internal.TakeWhileIterable$(E)))();
    var __t$ListOfE$ = () => (__t$ListOfE$ = dart.constFn(core.List$(E)))();
    var __t$_HashSetOfE = () => (__t$_HashSetOfE = dart.constFn(collection._HashSet$(E)))();
    var __t$JSArrayOfE = () => (__t$JSArrayOfE = dart.constFn(_interceptors.JSArray$(E)))();
    var __t$ListMapViewOfE = () => (__t$ListMapViewOfE = dart.constFn(_internal.ListMapView$(E)))();
    var __t$ReversedListIterableOfE = () => (__t$ReversedListIterableOfE = dart.constFn(_internal.ReversedListIterable$(E)))();
    class ListBase extends core.Object {
      get iterator() {
        return new (__t$ListIteratorOfE()).new(this);
      }
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[35], 43, 19, "index");
        return this[$_get](index);
      }
      followedBy(other) {
        __t$IterableOfE()[_as](other);
        if (other == null) dart.nullFailed(I[35], 45, 38, "other");
        return __t$FollowedByIterableOfE().firstEfficient(this, other);
      }
      forEach(action) {
        if (action == null) dart.nullFailed(I[35], 48, 21, "action");
        let length = this[$length];
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          action(this[$_get](i));
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
      }
      get isEmpty() {
        return this[$length] === 0;
      }
      get isNotEmpty() {
        return !dart.test(this[$isEmpty]);
      }
      get first() {
        if (this[$length] === 0) dart.throw(_internal.IterableElementError.noElement());
        return this[$_get](0);
      }
      set first(value) {
        E[_as](value);
        if (this[$length] === 0) dart.throw(_internal.IterableElementError.noElement());
        this[$_set](0, value);
      }
      get last() {
        if (this[$length] === 0) dart.throw(_internal.IterableElementError.noElement());
        return this[$_get](dart.notNull(this[$length]) - 1);
      }
      set last(value) {
        E[_as](value);
        if (this[$length] === 0) dart.throw(_internal.IterableElementError.noElement());
        this[$_set](dart.notNull(this[$length]) - 1, value);
      }
      get single() {
        if (this[$length] === 0) dart.throw(_internal.IterableElementError.noElement());
        if (dart.notNull(this[$length]) > 1) dart.throw(_internal.IterableElementError.tooMany());
        return this[$_get](0);
      }
      contains(element) {
        let length = this[$length];
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          if (dart.equals(this[$_get](i), element)) return true;
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return false;
      }
      every(test) {
        if (test == null) dart.nullFailed(I[35], 100, 19, "test");
        let length = this[$length];
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          if (!dart.test(test(this[$_get](i)))) return false;
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return true;
      }
      any(test) {
        if (test == null) dart.nullFailed(I[35], 111, 17, "test");
        let length = this[$length];
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          if (dart.test(test(this[$_get](i)))) return true;
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return false;
      }
      firstWhere(test, opts) {
        if (test == null) dart.nullFailed(I[35], 122, 21, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let length = this[$length];
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          let element = this[$_get](i);
          if (dart.test(test(element))) return element;
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      lastWhere(test, opts) {
        if (test == null) dart.nullFailed(I[35], 135, 20, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let length = this[$length];
        for (let i = dart.notNull(length) - 1; i >= 0; i = i - 1) {
          let element = this[$_get](i);
          if (dart.test(test(element))) return element;
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      singleWhere(test, opts) {
        if (test == null) dart.nullFailed(I[35], 148, 22, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let length = this[$length];
        let match = null;
        let t$36$35match$35isSet = false;
        function t$36$35match$35get() {
          return t$36$35match$35isSet ? match : dart.throw(new _internal.LateError.localNI("match"));
        }
        function t$36$35match$35set(match$35param) {
          t$36$35match$35isSet = true;
          return match = match$35param;
        }
        let matchFound = false;
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          let element = this[$_get](i);
          if (dart.test(test(element))) {
            if (matchFound) {
              dart.throw(_internal.IterableElementError.tooMany());
            }
            matchFound = true;
            t$36$35match$35set(element);
          }
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        if (matchFound) return t$36$35match$35get();
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      join(separator = "") {
        let t$3627;
        if (separator == null) dart.nullFailed(I[35], 170, 23, "separator");
        if (this[$length] === 0) return "";
        let buffer = (t$3627 = new core.StringBuffer.new(), (() => {
          t$3627.writeAll(this, separator);
          return t$3627;
        })());
        return dart.toString(buffer);
      }
      where(test) {
        if (test == null) dart.nullFailed(I[35], 176, 26, "test");
        return new (__t$WhereIterableOfE()).new(this, test);
      }
      whereType(T) {
        return new (_internal.WhereTypeIterable$(T)).new(this);
      }
      map(T, f) {
        if (f == null) dart.nullFailed(I[35], 180, 24, "f");
        return new (_internal.MappedListIterable$(E, T)).new(this, f);
      }
      expand(T, f) {
        if (f == null) dart.nullFailed(I[35], 182, 37, "f");
        return new (_internal.ExpandIterable$(E, T)).new(this, f);
      }
      reduce(combine) {
        __t$EAndEToE()[_as](combine);
        if (combine == null) dart.nullFailed(I[35], 185, 14, "combine");
        let length = this[$length];
        if (length === 0) dart.throw(_internal.IterableElementError.noElement());
        let value = this[$_get](0);
        for (let i = 1; i < dart.notNull(length); i = i + 1) {
          value = combine(value, this[$_get](i));
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return value;
      }
      fold(T, initialValue, combine) {
        if (combine == null) dart.nullFailed(I[35], 198, 31, "combine");
        let value = initialValue;
        let length = this[$length];
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          value = combine(value, this[$_get](i));
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return value;
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[35], 210, 24, "count");
        return new (__t$SubListIterableOfE()).new(this, count, null);
      }
      skipWhile(test) {
        if (test == null) dart.nullFailed(I[35], 212, 30, "test");
        return new (__t$SkipWhileIterableOfE()).new(this, test);
      }
      take(count) {
        if (count == null) dart.nullFailed(I[35], 216, 24, "count");
        return new (__t$SubListIterableOfE()).new(this, 0, _internal.checkNotNullable(T$.int(), count, "count"));
      }
      takeWhile(test) {
        if (test == null) dart.nullFailed(I[35], 219, 30, "test");
        return new (__t$TakeWhileIterableOfE()).new(this, test);
      }
      toList(opts) {
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[35], 223, 24, "growable");
        if (dart.test(this[$isEmpty])) return __t$ListOfE$().empty({growable: growable});
        let first = this[$_get](0);
        let result = __t$ListOfE$().filled(this[$length], first, {growable: growable});
        for (let i = 1; i < dart.notNull(this[$length]); i = i + 1) {
          result[$_set](i, this[$_get](i));
        }
        return result;
      }
      toSet() {
        let result = new (__t$_HashSetOfE()).new();
        for (let i = 0; i < dart.notNull(this[$length]); i = i + 1) {
          result.add(this[$_get](i));
        }
        return result;
      }
      add(element) {
        let t$3627;
        E[_as](element);
        this[$_set]((t$3627 = this[$length], this[$length] = dart.notNull(t$3627) + 1, t$3627), element);
      }
      addAll(iterable) {
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[35], 247, 27, "iterable");
        let i = this[$length];
        for (let element of iterable) {
          if (!(this[$length] == i || dart.throw(new core.ConcurrentModificationError.new(this)))) dart.assertFailed(null, I[35], 250, 14, "this.length == i || (throw ConcurrentModificationError(this))");
          this[$add](element);
          i = dart.notNull(i) + 1;
        }
      }
      remove(element) {
        for (let i = 0; i < dart.notNull(this[$length]); i = i + 1) {
          if (dart.equals(this[$_get](i), element)) {
            this[_closeGap](i, i + 1);
            return true;
          }
        }
        return false;
      }
      [_closeGap](start, end) {
        if (start == null) dart.nullFailed(I[35], 268, 22, "start");
        if (end == null) dart.nullFailed(I[35], 268, 33, "end");
        let length = this[$length];
        if (!(0 <= dart.notNull(start))) dart.assertFailed(null, I[35], 270, 12, "0 <= start");
        if (!(dart.notNull(start) < dart.notNull(end))) dart.assertFailed(null, I[35], 271, 12, "start < end");
        if (!(dart.notNull(end) <= dart.notNull(length))) dart.assertFailed(null, I[35], 272, 12, "end <= length");
        let size = dart.notNull(end) - dart.notNull(start);
        for (let i = end; dart.notNull(i) < dart.notNull(length); i = dart.notNull(i) + 1) {
          this[$_set](dart.notNull(i) - size, this[$_get](i));
        }
        this[$length] = dart.notNull(length) - size;
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[35], 280, 25, "test");
        this[_filter](test, false);
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[35], 284, 25, "test");
        this[_filter](test, true);
      }
      [_filter](test, retainMatching) {
        if (test == null) dart.nullFailed(I[35], 288, 21, "test");
        if (retainMatching == null) dart.nullFailed(I[35], 288, 43, "retainMatching");
        let retained = __t$JSArrayOfE().of([]);
        let length = this[$length];
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          let element = this[$_get](i);
          if (test(element) == retainMatching) {
            retained[$add](element);
          }
          if (length != this[$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        if (retained[$length] != this[$length]) {
          this[$setRange](0, retained[$length], retained);
          this[$length] = retained[$length];
        }
      }
      clear() {
        this[$length] = 0;
      }
      cast(R) {
        return core.List.castFrom(E, R, this);
      }
      removeLast() {
        if (this[$length] === 0) {
          dart.throw(_internal.IterableElementError.noElement());
        }
        let result = this[$_get](dart.notNull(this[$length]) - 1);
        this[$length] = dart.notNull(this[$length]) - 1;
        return result;
      }
      sort(compare = null) {
        let t$3627;
        _internal.Sort.sort(E, this, (t$3627 = compare, t$3627 == null ? C[52] || CT.C52 : t$3627));
      }
      static _compareAny(a, b) {
        return core.Comparable.compare(T$.Comparable()[_as](a), T$.Comparable()[_as](b));
      }
      shuffle(random = null) {
        random == null ? random = math.Random.new() : null;
        let length = this[$length];
        while (dart.notNull(length) > 1) {
          let pos = random.nextInt(length);
          length = dart.notNull(length) - 1;
          let tmp = this[$_get](length);
          this[$_set](length, this[$_get](pos));
          this[$_set](pos, tmp);
        }
      }
      asMap() {
        return new (__t$ListMapViewOfE()).new(this);
      }
      ['+'](other) {
        __t$ListOfE()[_as](other);
        if (other == null) dart.nullFailed(I[35], 345, 30, "other");
        return (() => {
          let t$3627 = __t$ListOfE$().of(this);
          t$3627[$addAll](other);
          return t$3627;
        })();
      }
      sublist(start, end = null) {
        if (start == null) dart.nullFailed(I[35], 347, 23, "start");
        let listLength = this[$length];
        end == null ? end = listLength : null;
        core.RangeError.checkValidRange(start, end, listLength);
        return __t$ListOfE$().from(this[$getRange](start, end));
      }
      getRange(start, end) {
        if (start == null) dart.nullFailed(I[35], 355, 28, "start");
        if (end == null) dart.nullFailed(I[35], 355, 39, "end");
        core.RangeError.checkValidRange(start, end, this[$length]);
        return new (__t$SubListIterableOfE()).new(this, start, end);
      }
      removeRange(start, end) {
        if (start == null) dart.nullFailed(I[35], 360, 24, "start");
        if (end == null) dart.nullFailed(I[35], 360, 35, "end");
        core.RangeError.checkValidRange(start, end, this[$length]);
        if (dart.notNull(end) > dart.notNull(start)) {
          this[_closeGap](start, end);
        }
      }
      fillRange(start, end, fill = null) {
        if (start == null) dart.nullFailed(I[35], 367, 22, "start");
        if (end == null) dart.nullFailed(I[35], 367, 33, "end");
        __t$EN()[_as](fill);
        let value = E[_as](fill);
        core.RangeError.checkValidRange(start, end, this[$length]);
        for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
          this[$_set](i, value);
        }
      }
      setRange(start, end, iterable, skipCount = 0) {
        if (start == null) dart.nullFailed(I[35], 377, 21, "start");
        if (end == null) dart.nullFailed(I[35], 377, 32, "end");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[35], 377, 49, "iterable");
        if (skipCount == null) dart.nullFailed(I[35], 377, 64, "skipCount");
        core.RangeError.checkValidRange(start, end, this[$length]);
        let length = dart.notNull(end) - dart.notNull(start);
        if (length === 0) return;
        core.RangeError.checkNotNegative(skipCount, "skipCount");
        let otherList = null;
        let otherStart = null;
        if (__t$ListOfE()[_is](iterable)) {
          otherList = iterable;
          otherStart = skipCount;
        } else {
          otherList = iterable[$skip](skipCount)[$toList]({growable: false});
          otherStart = 0;
        }
        if (dart.notNull(otherStart) + length > dart.notNull(otherList[$length])) {
          dart.throw(_internal.IterableElementError.tooFew());
        }
        if (dart.notNull(otherStart) < dart.notNull(start)) {
          for (let i = length - 1; i >= 0; i = i - 1) {
            this[$_set](dart.notNull(start) + i, otherList[$_get](dart.notNull(otherStart) + i));
          }
        } else {
          for (let i = 0; i < length; i = i + 1) {
            this[$_set](dart.notNull(start) + i, otherList[$_get](dart.notNull(otherStart) + i));
          }
        }
      }
      replaceRange(start, end, newContents) {
        if (start == null) dart.nullFailed(I[35], 408, 25, "start");
        if (end == null) dart.nullFailed(I[35], 408, 36, "end");
        __t$IterableOfE()[_as](newContents);
        if (newContents == null) dart.nullFailed(I[35], 408, 53, "newContents");
        core.RangeError.checkValidRange(start, end, this[$length]);
        if (start == this[$length]) {
          this[$addAll](newContents);
          return;
        }
        if (!T$.EfficientLengthIterable()[_is](newContents)) {
          newContents = newContents[$toList]();
        }
        let removeLength = dart.notNull(end) - dart.notNull(start);
        let insertLength = newContents[$length];
        if (removeLength >= dart.notNull(insertLength)) {
          let insertEnd = dart.notNull(start) + dart.notNull(insertLength);
          this[$setRange](start, insertEnd, newContents);
          if (removeLength > dart.notNull(insertLength)) {
            this[_closeGap](insertEnd, end);
          }
        } else if (end == this[$length]) {
          let i = start;
          for (let element of newContents) {
            if (dart.notNull(i) < dart.notNull(end)) {
              this[$_set](i, element);
            } else {
              this[$add](element);
            }
            i = dart.notNull(i) + 1;
          }
        } else {
          let delta = dart.notNull(insertLength) - removeLength;
          let oldLength = this[$length];
          let insertEnd = dart.notNull(start) + dart.notNull(insertLength);
          for (let i = dart.notNull(oldLength) - delta; i < dart.notNull(oldLength); i = i + 1) {
            this[$add](this[$_get](i > 0 ? i : 0));
          }
          if (insertEnd < dart.notNull(oldLength)) {
            this[$setRange](insertEnd, oldLength, this, end);
          }
          this[$setRange](start, insertEnd, newContents);
        }
      }
      indexOf(element, start = 0) {
        if (start == null) dart.nullFailed(I[35], 449, 37, "start");
        if (dart.notNull(start) < 0) start = 0;
        for (let i = start; dart.notNull(i) < dart.notNull(this[$length]); i = dart.notNull(i) + 1) {
          if (dart.equals(this[$_get](i), element)) return i;
        }
        return -1;
      }
      indexWhere(test, start = 0) {
        if (test == null) dart.nullFailed(I[35], 457, 23, "test");
        if (start == null) dart.nullFailed(I[35], 457, 45, "start");
        if (dart.notNull(start) < 0) start = 0;
        for (let i = start; dart.notNull(i) < dart.notNull(this[$length]); i = dart.notNull(i) + 1) {
          if (dart.test(test(this[$_get](i)))) return i;
        }
        return -1;
      }
      lastIndexOf(element, start = null) {
        if (start == null || dart.notNull(start) >= dart.notNull(this[$length])) start = dart.notNull(this[$length]) - 1;
        for (let i = start; dart.notNull(i) >= 0; i = dart.notNull(i) - 1) {
          if (dart.equals(this[$_get](i), element)) return i;
        }
        return -1;
      }
      lastIndexWhere(test, start = null) {
        if (test == null) dart.nullFailed(I[35], 474, 27, "test");
        if (start == null || dart.notNull(start) >= dart.notNull(this[$length])) start = dart.notNull(this[$length]) - 1;
        for (let i = start; dart.notNull(i) >= 0; i = dart.notNull(i) - 1) {
          if (dart.test(test(this[$_get](i)))) return i;
        }
        return -1;
      }
      insert(index, element) {
        if (index == null) dart.nullFailed(I[35], 483, 19, "index");
        E[_as](element);
        _internal.checkNotNullable(T$.int(), index, "index");
        let length = this[$length];
        core.RangeError.checkValueInInterval(index, 0, length, "index");
        this[$add](element);
        if (index != length) {
          this[$setRange](dart.notNull(index) + 1, dart.notNull(length) + 1, this, index);
          this[$_set](index, element);
        }
      }
      removeAt(index) {
        if (index == null) dart.nullFailed(I[35], 494, 18, "index");
        let result = this[$_get](index);
        this[_closeGap](index, dart.notNull(index) + 1);
        return result;
      }
      insertAll(index, iterable) {
        if (index == null) dart.nullFailed(I[35], 500, 22, "index");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[35], 500, 41, "iterable");
        core.RangeError.checkValueInInterval(index, 0, this[$length], "index");
        if (index == this[$length]) {
          this[$addAll](iterable);
          return;
        }
        if (!T$.EfficientLengthIterable()[_is](iterable) || iterable === this) {
          iterable = iterable[$toList]();
        }
        let insertionLength = iterable[$length];
        if (insertionLength === 0) {
          return;
        }
        let oldLength = this[$length];
        for (let i = dart.notNull(oldLength) - dart.notNull(insertionLength); i < dart.notNull(oldLength); i = i + 1) {
          this[$add](this[$_get](i > 0 ? i : 0));
        }
        if (iterable[$length] != insertionLength) {
          this[$length] = dart.notNull(this[$length]) - dart.notNull(insertionLength);
          dart.throw(new core.ConcurrentModificationError.new(iterable));
        }
        let oldCopyStart = dart.notNull(index) + dart.notNull(insertionLength);
        if (oldCopyStart < dart.notNull(oldLength)) {
          this[$setRange](oldCopyStart, oldLength, this, index);
        }
        this[$setAll](index, iterable);
      }
      setAll(index, iterable) {
        let t$3628;
        if (index == null) dart.nullFailed(I[35], 533, 19, "index");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[35], 533, 38, "iterable");
        if (T$.List()[_is](iterable)) {
          this[$setRange](index, dart.notNull(index) + dart.notNull(iterable[$length]), iterable);
        } else {
          for (let element of iterable) {
            this[$_set]((t$3628 = index, index = dart.notNull(t$3628) + 1, t$3628), element);
          }
        }
      }
      get reversed() {
        return new (__t$ReversedListIterableOfE()).new(this);
      }
      toString() {
        return collection.ListBase.listToString(this);
      }
      static listToString(list) {
        if (list == null) dart.nullFailed(I[35], 555, 44, "list");
        return core.Iterable.iterableToFullString(list, "[", "]");
      }
    }
    (ListBase.new = function() {
      this.$ti = this.$ti || __t$ListBaseOfE();
      ;
    }).prototype = ListBase.prototype;
    dart.addRtiResources(ListBase, ["collection|ListBase", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(ListBase, () => dart.global.Object.setPrototypeOf({
      elementAt: __t$intToE(),
      [$elementAt]: __t$intToE(),
      followedBy: __t$ObjectNToIterableOfE(),
      [$followedBy]: __t$ObjectNToIterableOfE(),
      forEach: __t$FnTovoid(),
      [$forEach]: __t$FnTovoid(),
      contains: T$.ObjectNTobool(),
      [$contains]: T$.ObjectNTobool(),
      every: __t$FnTobool(),
      [$every]: __t$FnTobool(),
      any: __t$FnTobool(),
      [$any]: __t$FnTobool(),
      firstWhere: __t$Fn__ToE(),
      [$firstWhere]: __t$Fn__ToE(),
      lastWhere: __t$Fn__ToE(),
      [$lastWhere]: __t$Fn__ToE(),
      singleWhere: __t$Fn__ToE(),
      [$singleWhere]: __t$Fn__ToE(),
      join: T$.StringToString$1(),
      [$join]: T$.StringToString$1(),
      where: __t$FnToIterableOfE(),
      [$where]: __t$FnToIterableOfE(),
      whereType: T$.VoidToIterableOfT(),
      [$whereType]: T$.VoidToIterableOfT(),
      map: __t$FnToIterableOfT(),
      [$map]: __t$FnToIterableOfT(),
      expand: __t$FnToIterableOfT$(),
      [$expand]: __t$FnToIterableOfT$(),
      reduce: __t$ObjectNToE(),
      [$reduce]: __t$ObjectNToE(),
      fold: __t$TAndFnToT(),
      [$fold]: __t$TAndFnToT(),
      skip: __t$intToIterableOfE(),
      [$skip]: __t$intToIterableOfE(),
      skipWhile: __t$FnToIterableOfE(),
      [$skipWhile]: __t$FnToIterableOfE(),
      take: __t$intToIterableOfE(),
      [$take]: __t$intToIterableOfE(),
      takeWhile: __t$FnToIterableOfE(),
      [$takeWhile]: __t$FnToIterableOfE(),
      toList: __t$__ToListOfE(),
      [$toList]: __t$__ToListOfE(),
      toSet: __t$VoidToSetOfE(),
      [$toSet]: __t$VoidToSetOfE(),
      add: T$.ObjectNTovoid(),
      [$add]: T$.ObjectNTovoid(),
      addAll: T$.ObjectNTovoid(),
      [$addAll]: T$.ObjectNTovoid(),
      remove: T$.ObjectNTobool(),
      [$remove]: T$.ObjectNTobool(),
      [_closeGap]: T$.intAndintTovoid(),
      removeWhere: __t$FnTovoid$(),
      [$removeWhere]: __t$FnTovoid$(),
      retainWhere: __t$FnTovoid$(),
      [$retainWhere]: __t$FnTovoid$(),
      [_filter]: __t$FnAndboolTovoid(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid(),
      cast: T$.VoidToListOfR(),
      [$cast]: T$.VoidToListOfR(),
      removeLast: __t$VoidToE(),
      [$removeLast]: __t$VoidToE(),
      sort: __t$FnTovoid$0(),
      [$sort]: __t$FnTovoid$0(),
      shuffle: T$.RandomNTovoid(),
      [$shuffle]: T$.RandomNTovoid(),
      asMap: __t$VoidToMapOfint$E(),
      [$asMap]: __t$VoidToMapOfint$E(),
      '+': __t$ObjectNToListOfE(),
      [$plus]: __t$ObjectNToListOfE(),
      sublist: __t$intAndintNToListOfE(),
      [$sublist]: __t$intAndintNToListOfE(),
      getRange: __t$intAndintToIterableOfE(),
      [$getRange]: __t$intAndintToIterableOfE(),
      removeRange: T$.intAndintTovoid(),
      [$removeRange]: T$.intAndintTovoid(),
      fillRange: T$.intAndintAndObjectNTovoid(),
      [$fillRange]: T$.intAndintAndObjectNTovoid(),
      setRange: T$.intAndintAndObjectN__Tovoid(),
      [$setRange]: T$.intAndintAndObjectN__Tovoid(),
      replaceRange: T$.intAndintAndObjectNTovoid$1(),
      [$replaceRange]: T$.intAndintAndObjectNTovoid$1(),
      indexOf: T$.ObjectNAndintToint(),
      [$indexOf]: T$.ObjectNAndintToint(),
      indexWhere: __t$FnAndintToint(),
      [$indexWhere]: __t$FnAndintToint(),
      lastIndexOf: T$.ObjectNAndintNToint(),
      [$lastIndexOf]: T$.ObjectNAndintNToint(),
      lastIndexWhere: __t$FnAndintNToint(),
      [$lastIndexWhere]: __t$FnAndintNToint(),
      insert: T$.intAndObjectNTovoid(),
      [$insert]: T$.intAndObjectNTovoid(),
      removeAt: __t$intToE(),
      [$removeAt]: __t$intToE(),
      insertAll: T$.intAndObjectNTovoid(),
      [$insertAll]: T$.intAndObjectNTovoid(),
      setAll: T$.intAndObjectNTovoid(),
      [$setAll]: T$.intAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(ListBase))));
    dart.setMethodsDefaultTypeArgSignature(ListBase, () => dart.global.Object.setPrototypeOf({
      whereType: [T$.dynamic()],
      [$whereType]: [T$.dynamic()],
      map: [T$.dynamic()],
      [$map]: [T$.dynamic()],
      expand: [T$.dynamic()],
      [$expand]: [T$.dynamic()],
      fold: [T$.dynamic()],
      [$fold]: [T$.dynamic()],
      cast: [T$.dynamic()],
      [$cast]: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(ListBase))));
    dart.setStaticMethodSignature(ListBase, () => ['_compareAny', 'listToString']);
    dart.setGetterSignature(ListBase, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE(),
      isEmpty: T$.bool(),
      [$isEmpty]: T$.bool(),
      isNotEmpty: T$.bool(),
      [$isNotEmpty]: T$.bool(),
      first: E,
      [$first]: E,
      last: E,
      [$last]: E,
      single: E,
      [$single]: E,
      reversed: __t$IterableOfE(),
      [$reversed]: __t$IterableOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(ListBase))));
    dart.setSetterSignature(ListBase, () => dart.global.Object.setPrototypeOf({
      first: T$.ObjectN(),
      [$first]: T$.ObjectN(),
      last: T$.ObjectN(),
      [$last]: T$.ObjectN()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(ListBase))));
    dart.setLibraryUri(ListBase, I[24]);
    dart.defineExtensionMethods(ListBase, [
      'elementAt',
      'followedBy',
      'forEach',
      'contains',
      'every',
      'any',
      'firstWhere',
      'lastWhere',
      'singleWhere',
      'join',
      'where',
      'whereType',
      'map',
      'expand',
      'reduce',
      'fold',
      'skip',
      'skipWhile',
      'take',
      'takeWhile',
      'toList',
      'toSet',
      'add',
      'addAll',
      'remove',
      'removeWhere',
      'retainWhere',
      'clear',
      'cast',
      'removeLast',
      'sort',
      'shuffle',
      'asMap',
      '+',
      'sublist',
      'getRange',
      'removeRange',
      'fillRange',
      'setRange',
      'replaceRange',
      'indexOf',
      'indexWhere',
      'lastIndexOf',
      'lastIndexWhere',
      'insert',
      'removeAt',
      'insertAll',
      'setAll',
      'toString'
    ]);
    dart.defineExtensionAccessors(ListBase, [
      'iterator',
      'isEmpty',
      'isNotEmpty',
      'first',
      'last',
      'single',
      'reversed'
    ]);
    return ListBase;
  });
  collection.ListBase = collection.ListBase$();
  _internal.UnmodifiableListMixin$ = dart.generic(E => {
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~(core|bool(0))")))();
    var __t$FnTovoid$ = () => (__t$FnTovoid$ = dart.constFn(E[_eval]("~([core|int(0,0)?])")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    class UnmodifiableListMixin extends core.Object {}
    UnmodifiableListMixin[dart.mixinOn] = Object => {
      class UnmodifiableListMixin extends Object {
        _set(index, value$) {
          let value = value$;
          if (index == null) dart.nullFailed(I[34], 89, 25, "index");
          E[_as](value);
          dart.throw(new core.UnsupportedError.new("Cannot modify an unmodifiable list"));
          return value$;
        }
        set length(newLength) {
          if (newLength == null) dart.nullFailed(I[34], 94, 18, "newLength");
          dart.throw(new core.UnsupportedError.new("Cannot change the length of an unmodifiable list"));
        }
        set first(element) {
          E[_as](element);
          dart.throw(new core.UnsupportedError.new("Cannot modify an unmodifiable list"));
        }
        set last(element) {
          E[_as](element);
          dart.throw(new core.UnsupportedError.new("Cannot modify an unmodifiable list"));
        }
        setAll(at, iterable) {
          if (at == null) dart.nullFailed(I[34], 108, 19, "at");
          __t$IterableOfE()[_as](iterable);
          if (iterable == null) dart.nullFailed(I[34], 108, 35, "iterable");
          dart.throw(new core.UnsupportedError.new("Cannot modify an unmodifiable list"));
        }
        add(value) {
          E[_as](value);
          dart.throw(new core.UnsupportedError.new("Cannot add to an unmodifiable list"));
        }
        insert(index, element) {
          if (index == null) dart.nullFailed(I[34], 118, 19, "index");
          E[_as](element);
          dart.throw(new core.UnsupportedError.new("Cannot add to an unmodifiable list"));
        }
        insertAll(at, iterable) {
          if (at == null) dart.nullFailed(I[34], 123, 22, "at");
          __t$IterableOfE()[_as](iterable);
          if (iterable == null) dart.nullFailed(I[34], 123, 38, "iterable");
          dart.throw(new core.UnsupportedError.new("Cannot add to an unmodifiable list"));
        }
        addAll(iterable) {
          __t$IterableOfE()[_as](iterable);
          if (iterable == null) dart.nullFailed(I[34], 128, 27, "iterable");
          dart.throw(new core.UnsupportedError.new("Cannot add to an unmodifiable list"));
        }
        remove(element) {
          dart.throw(new core.UnsupportedError.new("Cannot remove from an unmodifiable list"));
        }
        removeWhere(test) {
          if (test == null) dart.nullFailed(I[34], 138, 25, "test");
          dart.throw(new core.UnsupportedError.new("Cannot remove from an unmodifiable list"));
        }
        retainWhere(test) {
          if (test == null) dart.nullFailed(I[34], 143, 25, "test");
          dart.throw(new core.UnsupportedError.new("Cannot remove from an unmodifiable list"));
        }
        sort(compare = null) {
          dart.throw(new core.UnsupportedError.new("Cannot modify an unmodifiable list"));
        }
        shuffle(random = null) {
          dart.throw(new core.UnsupportedError.new("Cannot modify an unmodifiable list"));
        }
        clear() {
          dart.throw(new core.UnsupportedError.new("Cannot clear an unmodifiable list"));
        }
        removeAt(index) {
          if (index == null) dart.nullFailed(I[34], 163, 18, "index");
          dart.throw(new core.UnsupportedError.new("Cannot remove from an unmodifiable list"));
        }
        removeLast() {
          dart.throw(new core.UnsupportedError.new("Cannot remove from an unmodifiable list"));
        }
        setRange(start, end, iterable, skipCount = 0) {
          if (start == null) dart.nullFailed(I[34], 173, 21, "start");
          if (end == null) dart.nullFailed(I[34], 173, 32, "end");
          __t$IterableOfE()[_as](iterable);
          if (iterable == null) dart.nullFailed(I[34], 173, 49, "iterable");
          if (skipCount == null) dart.nullFailed(I[34], 173, 64, "skipCount");
          dart.throw(new core.UnsupportedError.new("Cannot modify an unmodifiable list"));
        }
        removeRange(start, end) {
          if (start == null) dart.nullFailed(I[34], 178, 24, "start");
          if (end == null) dart.nullFailed(I[34], 178, 35, "end");
          dart.throw(new core.UnsupportedError.new("Cannot remove from an unmodifiable list"));
        }
        replaceRange(start, end, iterable) {
          if (start == null) dart.nullFailed(I[34], 183, 25, "start");
          if (end == null) dart.nullFailed(I[34], 183, 36, "end");
          __t$IterableOfE()[_as](iterable);
          if (iterable == null) dart.nullFailed(I[34], 183, 53, "iterable");
          dart.throw(new core.UnsupportedError.new("Cannot remove from an unmodifiable list"));
        }
        fillRange(start, end, fillValue = null) {
          if (start == null) dart.nullFailed(I[34], 188, 22, "start");
          if (end == null) dart.nullFailed(I[34], 188, 33, "end");
          __t$EN()[_as](fillValue);
          dart.throw(new core.UnsupportedError.new("Cannot modify an unmodifiable list"));
        }
        [Symbol.iterator]() {
          return new dart.JsIterator(this[$iterator]);
        }
      }
      dart.defineExtensionMethods(UnmodifiableListMixin, [
        '_set',
        'setAll',
        'add',
        'insert',
        'insertAll',
        'addAll',
        'remove',
        'removeWhere',
        'retainWhere',
        'sort',
        'shuffle',
        'clear',
        'removeAt',
        'removeLast',
        'setRange',
        'removeRange',
        'replaceRange',
        'fillRange'
      ]);
      dart.defineExtensionAccessors(UnmodifiableListMixin, ['length', 'first', 'last']);
      return UnmodifiableListMixin;
    };
    (UnmodifiableListMixin[dart.mixinNew] = function() {
    }).prototype = UnmodifiableListMixin.prototype;
    dart.addRtiResources(UnmodifiableListMixin, ["_internal|UnmodifiableListMixin", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(UnmodifiableListMixin, () => dart.global.Object.setPrototypeOf({
      _set: T$.intAndObjectNTovoid(),
      [$_set]: T$.intAndObjectNTovoid(),
      setAll: T$.intAndObjectNTovoid(),
      [$setAll]: T$.intAndObjectNTovoid(),
      add: T$.ObjectNTovoid(),
      [$add]: T$.ObjectNTovoid(),
      insert: T$.intAndObjectNTovoid(),
      [$insert]: T$.intAndObjectNTovoid(),
      insertAll: T$.intAndObjectNTovoid(),
      [$insertAll]: T$.intAndObjectNTovoid(),
      addAll: T$.ObjectNTovoid(),
      [$addAll]: T$.ObjectNTovoid(),
      remove: T$.ObjectNTobool(),
      [$remove]: T$.ObjectNTobool(),
      removeWhere: __t$FnTovoid(),
      [$removeWhere]: __t$FnTovoid(),
      retainWhere: __t$FnTovoid(),
      [$retainWhere]: __t$FnTovoid(),
      sort: __t$FnTovoid$(),
      [$sort]: __t$FnTovoid$(),
      shuffle: T$.RandomNTovoid(),
      [$shuffle]: T$.RandomNTovoid(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid(),
      removeAt: __t$intToE(),
      [$removeAt]: __t$intToE(),
      removeLast: __t$VoidToE(),
      [$removeLast]: __t$VoidToE(),
      setRange: T$.intAndintAndObjectN__Tovoid(),
      [$setRange]: T$.intAndintAndObjectN__Tovoid(),
      removeRange: T$.intAndintTovoid(),
      [$removeRange]: T$.intAndintTovoid(),
      replaceRange: T$.intAndintAndObjectNTovoid$1(),
      [$replaceRange]: T$.intAndintAndObjectNTovoid$1(),
      fillRange: T$.intAndintAndObjectNTovoid(),
      [$fillRange]: T$.intAndintAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(UnmodifiableListMixin))));
    dart.setSetterSignature(UnmodifiableListMixin, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int(),
      first: T$.ObjectN(),
      [$first]: T$.ObjectN(),
      last: T$.ObjectN(),
      [$last]: T$.ObjectN()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(UnmodifiableListMixin))));
    dart.setLibraryUri(UnmodifiableListMixin, I[36]);
    return UnmodifiableListMixin;
  });
  _internal.UnmodifiableListMixin = _internal.UnmodifiableListMixin$();
  _internal.UnmodifiableListBase$ = dart.generic(E => {
    var __t$UnmodifiableListBaseOfE = () => (__t$UnmodifiableListBaseOfE = dart.constFn(E[_eval]("_internal|UnmodifiableListBase<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    var __t$ListBaseOfE = () => (__t$ListBaseOfE = dart.constFn(collection.ListBase$(E)))();
    var __t$UnmodifiableListMixinOfE = () => (__t$UnmodifiableListMixinOfE = dart.constFn(_internal.UnmodifiableListMixin$(E)))();
    const ListBase_UnmodifiableListMixin$36 = class ListBase_UnmodifiableListMixin extends __t$ListBaseOfE() {};
    (ListBase_UnmodifiableListMixin$36.new = function() {
      dart.global.Object.getPrototypeOf(ListBase_UnmodifiableListMixin$36).new.call(this);
    }).prototype = ListBase_UnmodifiableListMixin$36.prototype;
    dart.applyMixin(ListBase_UnmodifiableListMixin$36, __t$UnmodifiableListMixinOfE());
    class UnmodifiableListBase extends ListBase_UnmodifiableListMixin$36 {
      set length(newLength) {
        if (newLength == null) dart.nullFailed(I[34], 208, 16, "newLength");
        return super.length = newLength;
      }
      set first(element) {
        E[_as](element);
        return super.first = element;
      }
      get first() {
        return super.first;
      }
      set last(element) {
        E[_as](element);
        return super.last = element;
      }
      get last() {
        return super.last;
      }
      _set(index, value$) {
        let value = value$;
        if (index == null) dart.nullFailed(I[34], 208, 16, "index");
        E[_as](value);
        super._set(index, value);
        return value$;
      }
      setAll(at, iterable) {
        if (at == null) dart.nullFailed(I[34], 208, 16, "at");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[34], 208, 16, "iterable");
        return super.setAll(at, iterable);
      }
      add(value) {
        E[_as](value);
        return super.add(value);
      }
      insert(index, element) {
        if (index == null) dart.nullFailed(I[34], 208, 16, "index");
        E[_as](element);
        return super.insert(index, element);
      }
      insertAll(at, iterable) {
        if (at == null) dart.nullFailed(I[34], 208, 16, "at");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[34], 208, 16, "iterable");
        return super.insertAll(at, iterable);
      }
      addAll(iterable) {
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[34], 208, 16, "iterable");
        return super.addAll(iterable);
      }
      remove(element) {
        return super.remove(element);
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[34], 208, 16, "test");
        return super.removeWhere(test);
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[34], 208, 16, "test");
        return super.retainWhere(test);
      }
      sort(compare = null) {
        return super.sort(compare);
      }
      shuffle(random = null) {
        return super.shuffle(random);
      }
      clear() {
        return super.clear();
      }
      removeAt(index) {
        if (index == null) dart.nullFailed(I[34], 208, 16, "index");
        return super.removeAt(index);
      }
      removeLast() {
        return super.removeLast();
      }
      setRange(start, end, iterable, skipCount = 0) {
        if (start == null) dart.nullFailed(I[34], 208, 16, "start");
        if (end == null) dart.nullFailed(I[34], 208, 16, "end");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[34], 208, 16, "iterable");
        if (skipCount == null) dart.nullFailed(I[34], 208, 16, "skipCount");
        return super.setRange(start, end, iterable, skipCount);
      }
      removeRange(start, end) {
        if (start == null) dart.nullFailed(I[34], 208, 16, "start");
        if (end == null) dart.nullFailed(I[34], 208, 16, "end");
        return super.removeRange(start, end);
      }
      replaceRange(start, end, iterable) {
        if (start == null) dart.nullFailed(I[34], 208, 16, "start");
        if (end == null) dart.nullFailed(I[34], 208, 16, "end");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[34], 208, 16, "iterable");
        return super.replaceRange(start, end, iterable);
      }
      fillRange(start, end, fillValue = null) {
        if (start == null) dart.nullFailed(I[34], 208, 16, "start");
        if (end == null) dart.nullFailed(I[34], 208, 16, "end");
        __t$EN()[_as](fillValue);
        return super.fillRange(start, end, fillValue);
      }
    }
    (UnmodifiableListBase.new = function() {
      this.$ti = this.$ti || __t$UnmodifiableListBaseOfE();
      dart.global.Object.getPrototypeOf(UnmodifiableListBase).new.call(this);
      ;
    }).prototype = UnmodifiableListBase.prototype;
    dart.addRtiResources(UnmodifiableListBase, ["_internal|UnmodifiableListBase", "_internal|UnmodifiableListMixin", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(UnmodifiableListBase, () => dart.global.Object.setPrototypeOf({
      _set: T$.intAndObjectNTovoid(),
      [$_set]: T$.intAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(UnmodifiableListBase))));
    dart.setSetterSignature(UnmodifiableListBase, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(UnmodifiableListBase))));
    dart.setLibraryUri(UnmodifiableListBase, I[36]);
    dart.defineExtensionMethods(UnmodifiableListBase, [
      '_set',
      'setAll',
      'add',
      'insert',
      'insertAll',
      'addAll',
      'remove',
      'removeWhere',
      'retainWhere',
      'sort',
      'shuffle',
      'clear',
      'removeAt',
      'removeLast',
      'setRange',
      'removeRange',
      'replaceRange',
      'fillRange'
    ]);
    dart.defineExtensionAccessors(UnmodifiableListBase, ['length', 'first', 'last']);
    return UnmodifiableListBase;
  });
  _internal.UnmodifiableListBase = _internal.UnmodifiableListBase$();
  _internal.CodeUnits = class CodeUnits extends G.UnmodifiableListBaseOfint() {
    static ['_#new#tearOff'](_string) {
      if (_string == null) dart.nullFailed(I[33], 93, 18, "_string");
      return new _internal.CodeUnits.new(_string);
    }
    get length() {
      return this[_string$].length;
    }
    set length(value) {
      super.length = value;
    }
    _get(i) {
      if (i == null) dart.nullFailed(I[33], 96, 23, "i");
      return this[_string$][$codeUnitAt](i);
    }
    static stringOf(u) {
      if (u == null) dart.nullFailed(I[33], 98, 36, "u");
      return u[_string$];
    }
  };
  (_internal.CodeUnits.new = function(_string) {
    if (_string == null) dart.nullFailed(I[33], 93, 18, "_string");
    this[_string$] = _string;
    this.$ti = this.$ti || T$.CodeUnits();
    dart.global.Object.getPrototypeOf(_internal.CodeUnits).new.call(this);
    ;
  }).prototype = _internal.CodeUnits.prototype;
  dart.addRtiResources(_internal.CodeUnits, ["_internal|CodeUnits"]);
  dart.setMethodSignature(_internal.CodeUnits, () => dart.global.Object.setPrototypeOf({
    _get: T$.intToint(),
    [$_get]: T$.intToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_internal.CodeUnits))));
  dart.setStaticMethodSignature(_internal.CodeUnits, () => ['stringOf']);
  dart.setGetterSignature(_internal.CodeUnits, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_internal.CodeUnits))));
  dart.setLibraryUri(_internal.CodeUnits, I[36]);
  dart.setFieldSignature(_internal.CodeUnits, () => dart.global.Object.setPrototypeOf({[_string$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_internal.CodeUnits))));
  dart.defineExtensionMethods(_internal.CodeUnits, ['_get']);
  dart.defineExtensionAccessors(_internal.CodeUnits, ['length']);
  var name$4 = dart.privateName(_internal, "ExternalName.name");
  _internal.ExternalName = class ExternalName extends core.Object {
    get name() {
      return this[name$4];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[33], 110, 27, "name");
      return new _internal.ExternalName.new(name);
    }
  };
  (_internal.ExternalName.new = function(name) {
    if (name == null) dart.nullFailed(I[33], 110, 27, "name");
    this[name$4] = name;
    ;
  }).prototype = _internal.ExternalName.prototype;
  dart.addRtiResources(_internal.ExternalName, ["_internal|ExternalName"]);
  dart.setLibraryUri(_internal.ExternalName, I[36]);
  dart.setFieldSignature(_internal.ExternalName, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_internal.ExternalName))));
  _internal.SystemHash = class SystemHash extends core.Object {
    static combine(hash, value) {
      if (hash == null) dart.nullFailed(I[33], 183, 26, "hash");
      if (value == null) dart.nullFailed(I[33], 183, 36, "value");
      hash = 536870911 & dart.notNull(hash) + dart.notNull(value);
      hash = 536870911 & dart.notNull(hash) + ((524287 & dart.notNull(hash)) << 10);
      return (dart.notNull(hash) ^ hash[$rightShift](6)) >>> 0;
    }
    static finish(hash) {
      if (hash == null) dart.nullFailed(I[33], 189, 25, "hash");
      hash = 536870911 & dart.notNull(hash) + ((67108863 & dart.notNull(hash)) << 3);
      hash = (dart.notNull(hash) ^ hash[$rightShift](11)) >>> 0;
      return 536870911 & dart.notNull(hash) + ((16383 & dart.notNull(hash)) << 15);
    }
    static hash2(v1, v2, seed) {
      if (v1 == null) dart.nullFailed(I[33], 195, 24, "v1");
      if (v2 == null) dart.nullFailed(I[33], 195, 32, "v2");
      if (seed == null) dart.nullFailed(I[33], 195, 40, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      return _internal.SystemHash.finish(hash);
    }
    static hash3(v1, v2, v3, seed) {
      if (v1 == null) dart.nullFailed(I[33], 202, 24, "v1");
      if (v2 == null) dart.nullFailed(I[33], 202, 32, "v2");
      if (v3 == null) dart.nullFailed(I[33], 202, 40, "v3");
      if (seed == null) dart.nullFailed(I[33], 202, 48, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      return _internal.SystemHash.finish(hash);
    }
    static hash4(v1, v2, v3, v4, seed) {
      if (v1 == null) dart.nullFailed(I[33], 210, 24, "v1");
      if (v2 == null) dart.nullFailed(I[33], 210, 32, "v2");
      if (v3 == null) dart.nullFailed(I[33], 210, 40, "v3");
      if (v4 == null) dart.nullFailed(I[33], 210, 48, "v4");
      if (seed == null) dart.nullFailed(I[33], 210, 56, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      return _internal.SystemHash.finish(hash);
    }
    static hash5(v1, v2, v3, v4, v5, seed) {
      if (v1 == null) dart.nullFailed(I[33], 219, 24, "v1");
      if (v2 == null) dart.nullFailed(I[33], 219, 32, "v2");
      if (v3 == null) dart.nullFailed(I[33], 219, 40, "v3");
      if (v4 == null) dart.nullFailed(I[33], 219, 48, "v4");
      if (v5 == null) dart.nullFailed(I[33], 219, 56, "v5");
      if (seed == null) dart.nullFailed(I[33], 219, 64, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      return _internal.SystemHash.finish(hash);
    }
    static hash6(v1, v2, v3, v4, v5, v6, seed) {
      if (v1 == null) dart.nullFailed(I[33], 229, 24, "v1");
      if (v2 == null) dart.nullFailed(I[33], 229, 32, "v2");
      if (v3 == null) dart.nullFailed(I[33], 229, 40, "v3");
      if (v4 == null) dart.nullFailed(I[33], 229, 48, "v4");
      if (v5 == null) dart.nullFailed(I[33], 229, 56, "v5");
      if (v6 == null) dart.nullFailed(I[33], 229, 64, "v6");
      if (seed == null) dart.nullFailed(I[33], 229, 72, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      return _internal.SystemHash.finish(hash);
    }
    static hash7(v1, v2, v3, v4, v5, v6, v7, seed) {
      if (v1 == null) dart.nullFailed(I[33], 241, 11, "v1");
      if (v2 == null) dart.nullFailed(I[33], 241, 19, "v2");
      if (v3 == null) dart.nullFailed(I[33], 241, 27, "v3");
      if (v4 == null) dart.nullFailed(I[33], 241, 35, "v4");
      if (v5 == null) dart.nullFailed(I[33], 241, 43, "v5");
      if (v6 == null) dart.nullFailed(I[33], 241, 51, "v6");
      if (v7 == null) dart.nullFailed(I[33], 241, 59, "v7");
      if (seed == null) dart.nullFailed(I[33], 241, 67, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      return _internal.SystemHash.finish(hash);
    }
    static hash8(v1, v2, v3, v4, v5, v6, v7, v8, seed) {
      if (v1 == null) dart.nullFailed(I[33], 253, 24, "v1");
      if (v2 == null) dart.nullFailed(I[33], 253, 32, "v2");
      if (v3 == null) dart.nullFailed(I[33], 253, 40, "v3");
      if (v4 == null) dart.nullFailed(I[33], 253, 48, "v4");
      if (v5 == null) dart.nullFailed(I[33], 253, 56, "v5");
      if (v6 == null) dart.nullFailed(I[33], 253, 64, "v6");
      if (v7 == null) dart.nullFailed(I[33], 253, 72, "v7");
      if (v8 == null) dart.nullFailed(I[33], 254, 11, "v8");
      if (seed == null) dart.nullFailed(I[33], 254, 19, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      return _internal.SystemHash.finish(hash);
    }
    static hash9(v1, v2, v3, v4, v5, v6, v7, v8, v9, seed) {
      if (v1 == null) dart.nullFailed(I[33], 267, 24, "v1");
      if (v2 == null) dart.nullFailed(I[33], 267, 32, "v2");
      if (v3 == null) dart.nullFailed(I[33], 267, 40, "v3");
      if (v4 == null) dart.nullFailed(I[33], 267, 48, "v4");
      if (v5 == null) dart.nullFailed(I[33], 267, 56, "v5");
      if (v6 == null) dart.nullFailed(I[33], 267, 64, "v6");
      if (v7 == null) dart.nullFailed(I[33], 267, 72, "v7");
      if (v8 == null) dart.nullFailed(I[33], 268, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 268, 19, "v9");
      if (seed == null) dart.nullFailed(I[33], 268, 27, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      return _internal.SystemHash.finish(hash);
    }
    static hash10(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, seed) {
      if (v1 == null) dart.nullFailed(I[33], 282, 25, "v1");
      if (v2 == null) dart.nullFailed(I[33], 282, 33, "v2");
      if (v3 == null) dart.nullFailed(I[33], 282, 41, "v3");
      if (v4 == null) dart.nullFailed(I[33], 282, 49, "v4");
      if (v5 == null) dart.nullFailed(I[33], 282, 57, "v5");
      if (v6 == null) dart.nullFailed(I[33], 282, 65, "v6");
      if (v7 == null) dart.nullFailed(I[33], 282, 73, "v7");
      if (v8 == null) dart.nullFailed(I[33], 283, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 283, 19, "v9");
      if (v10 == null) dart.nullFailed(I[33], 283, 27, "v10");
      if (seed == null) dart.nullFailed(I[33], 283, 36, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      return _internal.SystemHash.finish(hash);
    }
    static hash11(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, seed) {
      if (v1 == null) dart.nullFailed(I[33], 298, 25, "v1");
      if (v2 == null) dart.nullFailed(I[33], 298, 33, "v2");
      if (v3 == null) dart.nullFailed(I[33], 298, 41, "v3");
      if (v4 == null) dart.nullFailed(I[33], 298, 49, "v4");
      if (v5 == null) dart.nullFailed(I[33], 298, 57, "v5");
      if (v6 == null) dart.nullFailed(I[33], 298, 65, "v6");
      if (v7 == null) dart.nullFailed(I[33], 298, 73, "v7");
      if (v8 == null) dart.nullFailed(I[33], 299, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 299, 19, "v9");
      if (v10 == null) dart.nullFailed(I[33], 299, 27, "v10");
      if (v11 == null) dart.nullFailed(I[33], 299, 36, "v11");
      if (seed == null) dart.nullFailed(I[33], 299, 45, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      return _internal.SystemHash.finish(hash);
    }
    static hash12(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, seed) {
      if (v1 == null) dart.nullFailed(I[33], 315, 25, "v1");
      if (v2 == null) dart.nullFailed(I[33], 315, 33, "v2");
      if (v3 == null) dart.nullFailed(I[33], 315, 41, "v3");
      if (v4 == null) dart.nullFailed(I[33], 315, 49, "v4");
      if (v5 == null) dart.nullFailed(I[33], 315, 57, "v5");
      if (v6 == null) dart.nullFailed(I[33], 315, 65, "v6");
      if (v7 == null) dart.nullFailed(I[33], 315, 73, "v7");
      if (v8 == null) dart.nullFailed(I[33], 316, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 316, 19, "v9");
      if (v10 == null) dart.nullFailed(I[33], 316, 27, "v10");
      if (v11 == null) dart.nullFailed(I[33], 316, 36, "v11");
      if (v12 == null) dart.nullFailed(I[33], 316, 45, "v12");
      if (seed == null) dart.nullFailed(I[33], 316, 54, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      hash = _internal.SystemHash.combine(hash, v12);
      return _internal.SystemHash.finish(hash);
    }
    static hash13(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, seed) {
      if (v1 == null) dart.nullFailed(I[33], 333, 25, "v1");
      if (v2 == null) dart.nullFailed(I[33], 333, 33, "v2");
      if (v3 == null) dart.nullFailed(I[33], 333, 41, "v3");
      if (v4 == null) dart.nullFailed(I[33], 333, 49, "v4");
      if (v5 == null) dart.nullFailed(I[33], 333, 57, "v5");
      if (v6 == null) dart.nullFailed(I[33], 333, 65, "v6");
      if (v7 == null) dart.nullFailed(I[33], 333, 73, "v7");
      if (v8 == null) dart.nullFailed(I[33], 334, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 334, 19, "v9");
      if (v10 == null) dart.nullFailed(I[33], 334, 27, "v10");
      if (v11 == null) dart.nullFailed(I[33], 334, 36, "v11");
      if (v12 == null) dart.nullFailed(I[33], 334, 45, "v12");
      if (v13 == null) dart.nullFailed(I[33], 334, 54, "v13");
      if (seed == null) dart.nullFailed(I[33], 334, 63, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      hash = _internal.SystemHash.combine(hash, v12);
      hash = _internal.SystemHash.combine(hash, v13);
      return _internal.SystemHash.finish(hash);
    }
    static hash14(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, seed) {
      if (v1 == null) dart.nullFailed(I[33], 352, 25, "v1");
      if (v2 == null) dart.nullFailed(I[33], 352, 33, "v2");
      if (v3 == null) dart.nullFailed(I[33], 352, 41, "v3");
      if (v4 == null) dart.nullFailed(I[33], 352, 49, "v4");
      if (v5 == null) dart.nullFailed(I[33], 352, 57, "v5");
      if (v6 == null) dart.nullFailed(I[33], 352, 65, "v6");
      if (v7 == null) dart.nullFailed(I[33], 352, 73, "v7");
      if (v8 == null) dart.nullFailed(I[33], 353, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 353, 19, "v9");
      if (v10 == null) dart.nullFailed(I[33], 353, 27, "v10");
      if (v11 == null) dart.nullFailed(I[33], 353, 36, "v11");
      if (v12 == null) dart.nullFailed(I[33], 353, 45, "v12");
      if (v13 == null) dart.nullFailed(I[33], 353, 54, "v13");
      if (v14 == null) dart.nullFailed(I[33], 353, 63, "v14");
      if (seed == null) dart.nullFailed(I[33], 353, 72, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      hash = _internal.SystemHash.combine(hash, v12);
      hash = _internal.SystemHash.combine(hash, v13);
      hash = _internal.SystemHash.combine(hash, v14);
      return _internal.SystemHash.finish(hash);
    }
    static hash15(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, seed) {
      if (v1 == null) dart.nullFailed(I[33], 373, 11, "v1");
      if (v2 == null) dart.nullFailed(I[33], 374, 11, "v2");
      if (v3 == null) dart.nullFailed(I[33], 375, 11, "v3");
      if (v4 == null) dart.nullFailed(I[33], 376, 11, "v4");
      if (v5 == null) dart.nullFailed(I[33], 377, 11, "v5");
      if (v6 == null) dart.nullFailed(I[33], 378, 11, "v6");
      if (v7 == null) dart.nullFailed(I[33], 379, 11, "v7");
      if (v8 == null) dart.nullFailed(I[33], 380, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 381, 11, "v9");
      if (v10 == null) dart.nullFailed(I[33], 382, 11, "v10");
      if (v11 == null) dart.nullFailed(I[33], 383, 11, "v11");
      if (v12 == null) dart.nullFailed(I[33], 384, 11, "v12");
      if (v13 == null) dart.nullFailed(I[33], 385, 11, "v13");
      if (v14 == null) dart.nullFailed(I[33], 386, 11, "v14");
      if (v15 == null) dart.nullFailed(I[33], 387, 11, "v15");
      if (seed == null) dart.nullFailed(I[33], 388, 11, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      hash = _internal.SystemHash.combine(hash, v12);
      hash = _internal.SystemHash.combine(hash, v13);
      hash = _internal.SystemHash.combine(hash, v14);
      hash = _internal.SystemHash.combine(hash, v15);
      return _internal.SystemHash.finish(hash);
    }
    static hash16(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, seed) {
      if (v1 == null) dart.nullFailed(I[33], 409, 11, "v1");
      if (v2 == null) dart.nullFailed(I[33], 410, 11, "v2");
      if (v3 == null) dart.nullFailed(I[33], 411, 11, "v3");
      if (v4 == null) dart.nullFailed(I[33], 412, 11, "v4");
      if (v5 == null) dart.nullFailed(I[33], 413, 11, "v5");
      if (v6 == null) dart.nullFailed(I[33], 414, 11, "v6");
      if (v7 == null) dart.nullFailed(I[33], 415, 11, "v7");
      if (v8 == null) dart.nullFailed(I[33], 416, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 417, 11, "v9");
      if (v10 == null) dart.nullFailed(I[33], 418, 11, "v10");
      if (v11 == null) dart.nullFailed(I[33], 419, 11, "v11");
      if (v12 == null) dart.nullFailed(I[33], 420, 11, "v12");
      if (v13 == null) dart.nullFailed(I[33], 421, 11, "v13");
      if (v14 == null) dart.nullFailed(I[33], 422, 11, "v14");
      if (v15 == null) dart.nullFailed(I[33], 423, 11, "v15");
      if (v16 == null) dart.nullFailed(I[33], 424, 11, "v16");
      if (seed == null) dart.nullFailed(I[33], 425, 11, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      hash = _internal.SystemHash.combine(hash, v12);
      hash = _internal.SystemHash.combine(hash, v13);
      hash = _internal.SystemHash.combine(hash, v14);
      hash = _internal.SystemHash.combine(hash, v15);
      hash = _internal.SystemHash.combine(hash, v16);
      return _internal.SystemHash.finish(hash);
    }
    static hash17(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, seed) {
      if (v1 == null) dart.nullFailed(I[33], 447, 11, "v1");
      if (v2 == null) dart.nullFailed(I[33], 448, 11, "v2");
      if (v3 == null) dart.nullFailed(I[33], 449, 11, "v3");
      if (v4 == null) dart.nullFailed(I[33], 450, 11, "v4");
      if (v5 == null) dart.nullFailed(I[33], 451, 11, "v5");
      if (v6 == null) dart.nullFailed(I[33], 452, 11, "v6");
      if (v7 == null) dart.nullFailed(I[33], 453, 11, "v7");
      if (v8 == null) dart.nullFailed(I[33], 454, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 455, 11, "v9");
      if (v10 == null) dart.nullFailed(I[33], 456, 11, "v10");
      if (v11 == null) dart.nullFailed(I[33], 457, 11, "v11");
      if (v12 == null) dart.nullFailed(I[33], 458, 11, "v12");
      if (v13 == null) dart.nullFailed(I[33], 459, 11, "v13");
      if (v14 == null) dart.nullFailed(I[33], 460, 11, "v14");
      if (v15 == null) dart.nullFailed(I[33], 461, 11, "v15");
      if (v16 == null) dart.nullFailed(I[33], 462, 11, "v16");
      if (v17 == null) dart.nullFailed(I[33], 463, 11, "v17");
      if (seed == null) dart.nullFailed(I[33], 464, 11, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      hash = _internal.SystemHash.combine(hash, v12);
      hash = _internal.SystemHash.combine(hash, v13);
      hash = _internal.SystemHash.combine(hash, v14);
      hash = _internal.SystemHash.combine(hash, v15);
      hash = _internal.SystemHash.combine(hash, v16);
      hash = _internal.SystemHash.combine(hash, v17);
      return _internal.SystemHash.finish(hash);
    }
    static hash18(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, seed) {
      if (v1 == null) dart.nullFailed(I[33], 487, 11, "v1");
      if (v2 == null) dart.nullFailed(I[33], 488, 11, "v2");
      if (v3 == null) dart.nullFailed(I[33], 489, 11, "v3");
      if (v4 == null) dart.nullFailed(I[33], 490, 11, "v4");
      if (v5 == null) dart.nullFailed(I[33], 491, 11, "v5");
      if (v6 == null) dart.nullFailed(I[33], 492, 11, "v6");
      if (v7 == null) dart.nullFailed(I[33], 493, 11, "v7");
      if (v8 == null) dart.nullFailed(I[33], 494, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 495, 11, "v9");
      if (v10 == null) dart.nullFailed(I[33], 496, 11, "v10");
      if (v11 == null) dart.nullFailed(I[33], 497, 11, "v11");
      if (v12 == null) dart.nullFailed(I[33], 498, 11, "v12");
      if (v13 == null) dart.nullFailed(I[33], 499, 11, "v13");
      if (v14 == null) dart.nullFailed(I[33], 500, 11, "v14");
      if (v15 == null) dart.nullFailed(I[33], 501, 11, "v15");
      if (v16 == null) dart.nullFailed(I[33], 502, 11, "v16");
      if (v17 == null) dart.nullFailed(I[33], 503, 11, "v17");
      if (v18 == null) dart.nullFailed(I[33], 504, 11, "v18");
      if (seed == null) dart.nullFailed(I[33], 505, 11, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      hash = _internal.SystemHash.combine(hash, v12);
      hash = _internal.SystemHash.combine(hash, v13);
      hash = _internal.SystemHash.combine(hash, v14);
      hash = _internal.SystemHash.combine(hash, v15);
      hash = _internal.SystemHash.combine(hash, v16);
      hash = _internal.SystemHash.combine(hash, v17);
      hash = _internal.SystemHash.combine(hash, v18);
      return _internal.SystemHash.finish(hash);
    }
    static hash19(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, seed) {
      if (v1 == null) dart.nullFailed(I[33], 529, 11, "v1");
      if (v2 == null) dart.nullFailed(I[33], 530, 11, "v2");
      if (v3 == null) dart.nullFailed(I[33], 531, 11, "v3");
      if (v4 == null) dart.nullFailed(I[33], 532, 11, "v4");
      if (v5 == null) dart.nullFailed(I[33], 533, 11, "v5");
      if (v6 == null) dart.nullFailed(I[33], 534, 11, "v6");
      if (v7 == null) dart.nullFailed(I[33], 535, 11, "v7");
      if (v8 == null) dart.nullFailed(I[33], 536, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 537, 11, "v9");
      if (v10 == null) dart.nullFailed(I[33], 538, 11, "v10");
      if (v11 == null) dart.nullFailed(I[33], 539, 11, "v11");
      if (v12 == null) dart.nullFailed(I[33], 540, 11, "v12");
      if (v13 == null) dart.nullFailed(I[33], 541, 11, "v13");
      if (v14 == null) dart.nullFailed(I[33], 542, 11, "v14");
      if (v15 == null) dart.nullFailed(I[33], 543, 11, "v15");
      if (v16 == null) dart.nullFailed(I[33], 544, 11, "v16");
      if (v17 == null) dart.nullFailed(I[33], 545, 11, "v17");
      if (v18 == null) dart.nullFailed(I[33], 546, 11, "v18");
      if (v19 == null) dart.nullFailed(I[33], 547, 11, "v19");
      if (seed == null) dart.nullFailed(I[33], 548, 11, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      hash = _internal.SystemHash.combine(hash, v12);
      hash = _internal.SystemHash.combine(hash, v13);
      hash = _internal.SystemHash.combine(hash, v14);
      hash = _internal.SystemHash.combine(hash, v15);
      hash = _internal.SystemHash.combine(hash, v16);
      hash = _internal.SystemHash.combine(hash, v17);
      hash = _internal.SystemHash.combine(hash, v18);
      hash = _internal.SystemHash.combine(hash, v19);
      return _internal.SystemHash.finish(hash);
    }
    static hash20(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, seed) {
      if (v1 == null) dart.nullFailed(I[33], 573, 11, "v1");
      if (v2 == null) dart.nullFailed(I[33], 574, 11, "v2");
      if (v3 == null) dart.nullFailed(I[33], 575, 11, "v3");
      if (v4 == null) dart.nullFailed(I[33], 576, 11, "v4");
      if (v5 == null) dart.nullFailed(I[33], 577, 11, "v5");
      if (v6 == null) dart.nullFailed(I[33], 578, 11, "v6");
      if (v7 == null) dart.nullFailed(I[33], 579, 11, "v7");
      if (v8 == null) dart.nullFailed(I[33], 580, 11, "v8");
      if (v9 == null) dart.nullFailed(I[33], 581, 11, "v9");
      if (v10 == null) dart.nullFailed(I[33], 582, 11, "v10");
      if (v11 == null) dart.nullFailed(I[33], 583, 11, "v11");
      if (v12 == null) dart.nullFailed(I[33], 584, 11, "v12");
      if (v13 == null) dart.nullFailed(I[33], 585, 11, "v13");
      if (v14 == null) dart.nullFailed(I[33], 586, 11, "v14");
      if (v15 == null) dart.nullFailed(I[33], 587, 11, "v15");
      if (v16 == null) dart.nullFailed(I[33], 588, 11, "v16");
      if (v17 == null) dart.nullFailed(I[33], 589, 11, "v17");
      if (v18 == null) dart.nullFailed(I[33], 590, 11, "v18");
      if (v19 == null) dart.nullFailed(I[33], 591, 11, "v19");
      if (v20 == null) dart.nullFailed(I[33], 592, 11, "v20");
      if (seed == null) dart.nullFailed(I[33], 593, 11, "seed");
      let hash = seed;
      hash = _internal.SystemHash.combine(hash, v1);
      hash = _internal.SystemHash.combine(hash, v2);
      hash = _internal.SystemHash.combine(hash, v3);
      hash = _internal.SystemHash.combine(hash, v4);
      hash = _internal.SystemHash.combine(hash, v5);
      hash = _internal.SystemHash.combine(hash, v6);
      hash = _internal.SystemHash.combine(hash, v7);
      hash = _internal.SystemHash.combine(hash, v8);
      hash = _internal.SystemHash.combine(hash, v9);
      hash = _internal.SystemHash.combine(hash, v10);
      hash = _internal.SystemHash.combine(hash, v11);
      hash = _internal.SystemHash.combine(hash, v12);
      hash = _internal.SystemHash.combine(hash, v13);
      hash = _internal.SystemHash.combine(hash, v14);
      hash = _internal.SystemHash.combine(hash, v15);
      hash = _internal.SystemHash.combine(hash, v16);
      hash = _internal.SystemHash.combine(hash, v17);
      hash = _internal.SystemHash.combine(hash, v18);
      hash = _internal.SystemHash.combine(hash, v19);
      hash = _internal.SystemHash.combine(hash, v20);
      return _internal.SystemHash.finish(hash);
    }
    static smear(x) {
      if (x == null) dart.nullFailed(I[33], 630, 24, "x");
      x = (dart.notNull(x) ^ dart.notNull(x) >>> 16) >>> 0;
      x = (dart.notNull(x) * 569420461 & 4294967295) >>> 0;
      x = (dart.notNull(x) ^ dart.notNull(x) >>> 15) >>> 0;
      x = (dart.notNull(x) * 3545902487 & 4294967295) >>> 0;
      x = (dart.notNull(x) ^ dart.notNull(x) >>> 15) >>> 0;
      return x;
    }
  };
  (_internal.SystemHash.new = function() {
    ;
  }).prototype = _internal.SystemHash.prototype;
  dart.addRtiResources(_internal.SystemHash, ["_internal|SystemHash"]);
  dart.setStaticMethodSignature(_internal.SystemHash, () => ['combine', 'finish', 'hash2', 'hash3', 'hash4', 'hash5', 'hash6', 'hash7', 'hash8', 'hash9', 'hash10', 'hash11', 'hash12', 'hash13', 'hash14', 'hash15', 'hash16', 'hash17', 'hash18', 'hash19', 'hash20', 'smear']);
  dart.setLibraryUri(_internal.SystemHash, I[36]);
  const id$ = SentinelValue_id;
  _internal.SentinelValue = class SentinelValue extends core.Object {
    get id() {
      return this[id$];
    }
    set id(value) {
      super.id = value;
    }
    static ['_#new#tearOff'](id) {
      if (id == null) dart.nullFailed(I[33], 643, 28, "id");
      return new _internal.SentinelValue.new(id);
    }
  };
  (_internal.SentinelValue.new = function(id) {
    if (id == null) dart.nullFailed(I[33], 643, 28, "id");
    this[id$] = id;
    ;
  }).prototype = _internal.SentinelValue.prototype;
  dart.addRtiResources(_internal.SentinelValue, ["_internal|SentinelValue"]);
  dart.setLibraryUri(_internal.SentinelValue, I[36]);
  dart.setFieldSignature(_internal.SentinelValue, () => dart.global.Object.setPrototypeOf({id: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_internal.SentinelValue))));
  var version$ = dart.privateName(_internal, "Since.version");
  _internal.Since = class Since extends core.Object {
    get version() {
      return this[version$];
    }
    set version(value) {
      super.version = value;
    }
    static ['_#new#tearOff'](version) {
      if (version == null) dart.nullFailed(I[33], 737, 20, "version");
      return new _internal.Since.new(version);
    }
  };
  (_internal.Since.new = function(version) {
    if (version == null) dart.nullFailed(I[33], 737, 20, "version");
    this[version$] = version;
    ;
  }).prototype = _internal.Since.prototype;
  dart.addRtiResources(_internal.Since, ["_internal|Since"]);
  dart.setLibraryUri(_internal.Since, I[36]);
  dart.setFieldSignature(_internal.Since, () => dart.global.Object.setPrototypeOf({version: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_internal.Since))));
  var _name$1 = dart.privateName(_internal, "_name");
  _internal.NotNullableError$ = dart.generic(T => {
    var __t$NotNullableErrorOfT = () => (__t$NotNullableErrorOfT = dart.constFn(T[_eval]("_internal|NotNullableError<0>")))();
    class NotNullableError extends core.Error {
      static ['_#new#tearOff'](T, _name) {
        if (_name == null) dart.nullFailed(I[33], 760, 25, "_name");
        return new (_internal.NotNullableError$(T)).new(_name);
      }
      toString() {
        return "Null is not a valid value for '" + dart.str(this[_name$1]) + "' of type '" + dart.str(dart_rti.createRuntimeType(T)) + "'";
      }
    }
    (NotNullableError.new = function(_name) {
      if (_name == null) dart.nullFailed(I[33], 760, 25, "_name");
      this[_name$1] = _name;
      this.$ti = this.$ti || __t$NotNullableErrorOfT();
      dart.global.Object.getPrototypeOf(NotNullableError).new.call(this);
      ;
    }).prototype = NotNullableError.prototype;
    dart.addRtiResources(NotNullableError, ["_internal|NotNullableError", "core|TypeError", "core|Error"]);
    dart.setLibraryUri(NotNullableError, I[36]);
    dart.setFieldSignature(NotNullableError, () => dart.global.Object.setPrototypeOf({[_name$1]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(NotNullableError))));
    dart.defineExtensionMethods(NotNullableError, ['toString']);
    return NotNullableError;
  });
  _internal.NotNullableError = _internal.NotNullableError$();
  _internal.HttpStatus = class HttpStatus extends core.Object {};
  (_internal.HttpStatus.new = function() {
    ;
  }).prototype = _internal.HttpStatus.prototype;
  dart.addRtiResources(_internal.HttpStatus, ["_internal|HttpStatus"]);
  dart.setLibraryUri(_internal.HttpStatus, I[36]);
  dart.setStaticFieldSignature(_internal.HttpStatus, () => ['continue__', 'switchingProtocols', 'processing', 'ok', 'created', 'accepted', 'nonAuthoritativeInformation', 'noContent', 'resetContent', 'partialContent', 'multiStatus', 'alreadyReported', 'imUsed', 'multipleChoices', 'movedPermanently', 'found', 'movedTemporarily', 'seeOther', 'notModified', 'useProxy', 'temporaryRedirect', 'permanentRedirect', 'badRequest', 'unauthorized', 'paymentRequired', 'forbidden', 'notFound', 'methodNotAllowed', 'notAcceptable', 'proxyAuthenticationRequired', 'requestTimeout', 'conflict', 'gone', 'lengthRequired', 'preconditionFailed', 'requestEntityTooLarge', 'requestUriTooLong', 'unsupportedMediaType', 'requestedRangeNotSatisfiable', 'expectationFailed', 'misdirectedRequest', 'unprocessableEntity', 'locked', 'failedDependency', 'upgradeRequired', 'preconditionRequired', 'tooManyRequests', 'requestHeaderFieldsTooLarge', 'connectionClosedWithoutResponse', 'unavailableForLegalReasons', 'clientClosedRequest', 'internalServerError', 'notImplemented', 'badGateway', 'serviceUnavailable', 'gatewayTimeout', 'httpVersionNotSupported', 'variantAlsoNegotiates', 'insufficientStorage', 'loopDetected', 'notExtended', 'networkAuthenticationRequired', 'networkConnectTimeoutError', 'CONTINUE', 'SWITCHING_PROTOCOLS', 'OK', 'CREATED', 'ACCEPTED', 'NON_AUTHORITATIVE_INFORMATION', 'NO_CONTENT', 'RESET_CONTENT', 'PARTIAL_CONTENT', 'MULTIPLE_CHOICES', 'MOVED_PERMANENTLY', 'FOUND', 'MOVED_TEMPORARILY', 'SEE_OTHER', 'NOT_MODIFIED', 'USE_PROXY', 'TEMPORARY_REDIRECT', 'BAD_REQUEST', 'UNAUTHORIZED', 'PAYMENT_REQUIRED', 'FORBIDDEN', 'NOT_FOUND', 'METHOD_NOT_ALLOWED', 'NOT_ACCEPTABLE', 'PROXY_AUTHENTICATION_REQUIRED', 'REQUEST_TIMEOUT', 'CONFLICT', 'GONE', 'LENGTH_REQUIRED', 'PRECONDITION_FAILED', 'REQUEST_ENTITY_TOO_LARGE', 'REQUEST_URI_TOO_LONG', 'UNSUPPORTED_MEDIA_TYPE', 'REQUESTED_RANGE_NOT_SATISFIABLE', 'EXPECTATION_FAILED', 'UPGRADE_REQUIRED', 'INTERNAL_SERVER_ERROR', 'NOT_IMPLEMENTED', 'BAD_GATEWAY', 'SERVICE_UNAVAILABLE', 'GATEWAY_TIMEOUT', 'HTTP_VERSION_NOT_SUPPORTED', 'NETWORK_CONNECT_TIMEOUT_ERROR']);
  dart.defineLazy(_internal.HttpStatus, {
    /*_internal.HttpStatus.continue__*/get continue__() {
      return 100;
    },
    /*_internal.HttpStatus.switchingProtocols*/get switchingProtocols() {
      return 101;
    },
    /*_internal.HttpStatus.processing*/get processing() {
      return 102;
    },
    /*_internal.HttpStatus.ok*/get ok() {
      return 200;
    },
    /*_internal.HttpStatus.created*/get created() {
      return 201;
    },
    /*_internal.HttpStatus.accepted*/get accepted() {
      return 202;
    },
    /*_internal.HttpStatus.nonAuthoritativeInformation*/get nonAuthoritativeInformation() {
      return 203;
    },
    /*_internal.HttpStatus.noContent*/get noContent() {
      return 204;
    },
    /*_internal.HttpStatus.resetContent*/get resetContent() {
      return 205;
    },
    /*_internal.HttpStatus.partialContent*/get partialContent() {
      return 206;
    },
    /*_internal.HttpStatus.multiStatus*/get multiStatus() {
      return 207;
    },
    /*_internal.HttpStatus.alreadyReported*/get alreadyReported() {
      return 208;
    },
    /*_internal.HttpStatus.imUsed*/get imUsed() {
      return 226;
    },
    /*_internal.HttpStatus.multipleChoices*/get multipleChoices() {
      return 300;
    },
    /*_internal.HttpStatus.movedPermanently*/get movedPermanently() {
      return 301;
    },
    /*_internal.HttpStatus.found*/get found() {
      return 302;
    },
    /*_internal.HttpStatus.movedTemporarily*/get movedTemporarily() {
      return 302;
    },
    /*_internal.HttpStatus.seeOther*/get seeOther() {
      return 303;
    },
    /*_internal.HttpStatus.notModified*/get notModified() {
      return 304;
    },
    /*_internal.HttpStatus.useProxy*/get useProxy() {
      return 305;
    },
    /*_internal.HttpStatus.temporaryRedirect*/get temporaryRedirect() {
      return 307;
    },
    /*_internal.HttpStatus.permanentRedirect*/get permanentRedirect() {
      return 308;
    },
    /*_internal.HttpStatus.badRequest*/get badRequest() {
      return 400;
    },
    /*_internal.HttpStatus.unauthorized*/get unauthorized() {
      return 401;
    },
    /*_internal.HttpStatus.paymentRequired*/get paymentRequired() {
      return 402;
    },
    /*_internal.HttpStatus.forbidden*/get forbidden() {
      return 403;
    },
    /*_internal.HttpStatus.notFound*/get notFound() {
      return 404;
    },
    /*_internal.HttpStatus.methodNotAllowed*/get methodNotAllowed() {
      return 405;
    },
    /*_internal.HttpStatus.notAcceptable*/get notAcceptable() {
      return 406;
    },
    /*_internal.HttpStatus.proxyAuthenticationRequired*/get proxyAuthenticationRequired() {
      return 407;
    },
    /*_internal.HttpStatus.requestTimeout*/get requestTimeout() {
      return 408;
    },
    /*_internal.HttpStatus.conflict*/get conflict() {
      return 409;
    },
    /*_internal.HttpStatus.gone*/get gone() {
      return 410;
    },
    /*_internal.HttpStatus.lengthRequired*/get lengthRequired() {
      return 411;
    },
    /*_internal.HttpStatus.preconditionFailed*/get preconditionFailed() {
      return 412;
    },
    /*_internal.HttpStatus.requestEntityTooLarge*/get requestEntityTooLarge() {
      return 413;
    },
    /*_internal.HttpStatus.requestUriTooLong*/get requestUriTooLong() {
      return 414;
    },
    /*_internal.HttpStatus.unsupportedMediaType*/get unsupportedMediaType() {
      return 415;
    },
    /*_internal.HttpStatus.requestedRangeNotSatisfiable*/get requestedRangeNotSatisfiable() {
      return 416;
    },
    /*_internal.HttpStatus.expectationFailed*/get expectationFailed() {
      return 417;
    },
    /*_internal.HttpStatus.misdirectedRequest*/get misdirectedRequest() {
      return 421;
    },
    /*_internal.HttpStatus.unprocessableEntity*/get unprocessableEntity() {
      return 422;
    },
    /*_internal.HttpStatus.locked*/get locked() {
      return 423;
    },
    /*_internal.HttpStatus.failedDependency*/get failedDependency() {
      return 424;
    },
    /*_internal.HttpStatus.upgradeRequired*/get upgradeRequired() {
      return 426;
    },
    /*_internal.HttpStatus.preconditionRequired*/get preconditionRequired() {
      return 428;
    },
    /*_internal.HttpStatus.tooManyRequests*/get tooManyRequests() {
      return 429;
    },
    /*_internal.HttpStatus.requestHeaderFieldsTooLarge*/get requestHeaderFieldsTooLarge() {
      return 431;
    },
    /*_internal.HttpStatus.connectionClosedWithoutResponse*/get connectionClosedWithoutResponse() {
      return 444;
    },
    /*_internal.HttpStatus.unavailableForLegalReasons*/get unavailableForLegalReasons() {
      return 451;
    },
    /*_internal.HttpStatus.clientClosedRequest*/get clientClosedRequest() {
      return 499;
    },
    /*_internal.HttpStatus.internalServerError*/get internalServerError() {
      return 500;
    },
    /*_internal.HttpStatus.notImplemented*/get notImplemented() {
      return 501;
    },
    /*_internal.HttpStatus.badGateway*/get badGateway() {
      return 502;
    },
    /*_internal.HttpStatus.serviceUnavailable*/get serviceUnavailable() {
      return 503;
    },
    /*_internal.HttpStatus.gatewayTimeout*/get gatewayTimeout() {
      return 504;
    },
    /*_internal.HttpStatus.httpVersionNotSupported*/get httpVersionNotSupported() {
      return 505;
    },
    /*_internal.HttpStatus.variantAlsoNegotiates*/get variantAlsoNegotiates() {
      return 506;
    },
    /*_internal.HttpStatus.insufficientStorage*/get insufficientStorage() {
      return 507;
    },
    /*_internal.HttpStatus.loopDetected*/get loopDetected() {
      return 508;
    },
    /*_internal.HttpStatus.notExtended*/get notExtended() {
      return 510;
    },
    /*_internal.HttpStatus.networkAuthenticationRequired*/get networkAuthenticationRequired() {
      return 511;
    },
    /*_internal.HttpStatus.networkConnectTimeoutError*/get networkConnectTimeoutError() {
      return 599;
    },
    /*_internal.HttpStatus.CONTINUE*/get CONTINUE() {
      return 100;
    },
    /*_internal.HttpStatus.SWITCHING_PROTOCOLS*/get SWITCHING_PROTOCOLS() {
      return 101;
    },
    /*_internal.HttpStatus.OK*/get OK() {
      return 200;
    },
    /*_internal.HttpStatus.CREATED*/get CREATED() {
      return 201;
    },
    /*_internal.HttpStatus.ACCEPTED*/get ACCEPTED() {
      return 202;
    },
    /*_internal.HttpStatus.NON_AUTHORITATIVE_INFORMATION*/get NON_AUTHORITATIVE_INFORMATION() {
      return 203;
    },
    /*_internal.HttpStatus.NO_CONTENT*/get NO_CONTENT() {
      return 204;
    },
    /*_internal.HttpStatus.RESET_CONTENT*/get RESET_CONTENT() {
      return 205;
    },
    /*_internal.HttpStatus.PARTIAL_CONTENT*/get PARTIAL_CONTENT() {
      return 206;
    },
    /*_internal.HttpStatus.MULTIPLE_CHOICES*/get MULTIPLE_CHOICES() {
      return 300;
    },
    /*_internal.HttpStatus.MOVED_PERMANENTLY*/get MOVED_PERMANENTLY() {
      return 301;
    },
    /*_internal.HttpStatus.FOUND*/get FOUND() {
      return 302;
    },
    /*_internal.HttpStatus.MOVED_TEMPORARILY*/get MOVED_TEMPORARILY() {
      return 302;
    },
    /*_internal.HttpStatus.SEE_OTHER*/get SEE_OTHER() {
      return 303;
    },
    /*_internal.HttpStatus.NOT_MODIFIED*/get NOT_MODIFIED() {
      return 304;
    },
    /*_internal.HttpStatus.USE_PROXY*/get USE_PROXY() {
      return 305;
    },
    /*_internal.HttpStatus.TEMPORARY_REDIRECT*/get TEMPORARY_REDIRECT() {
      return 307;
    },
    /*_internal.HttpStatus.BAD_REQUEST*/get BAD_REQUEST() {
      return 400;
    },
    /*_internal.HttpStatus.UNAUTHORIZED*/get UNAUTHORIZED() {
      return 401;
    },
    /*_internal.HttpStatus.PAYMENT_REQUIRED*/get PAYMENT_REQUIRED() {
      return 402;
    },
    /*_internal.HttpStatus.FORBIDDEN*/get FORBIDDEN() {
      return 403;
    },
    /*_internal.HttpStatus.NOT_FOUND*/get NOT_FOUND() {
      return 404;
    },
    /*_internal.HttpStatus.METHOD_NOT_ALLOWED*/get METHOD_NOT_ALLOWED() {
      return 405;
    },
    /*_internal.HttpStatus.NOT_ACCEPTABLE*/get NOT_ACCEPTABLE() {
      return 406;
    },
    /*_internal.HttpStatus.PROXY_AUTHENTICATION_REQUIRED*/get PROXY_AUTHENTICATION_REQUIRED() {
      return 407;
    },
    /*_internal.HttpStatus.REQUEST_TIMEOUT*/get REQUEST_TIMEOUT() {
      return 408;
    },
    /*_internal.HttpStatus.CONFLICT*/get CONFLICT() {
      return 409;
    },
    /*_internal.HttpStatus.GONE*/get GONE() {
      return 410;
    },
    /*_internal.HttpStatus.LENGTH_REQUIRED*/get LENGTH_REQUIRED() {
      return 411;
    },
    /*_internal.HttpStatus.PRECONDITION_FAILED*/get PRECONDITION_FAILED() {
      return 412;
    },
    /*_internal.HttpStatus.REQUEST_ENTITY_TOO_LARGE*/get REQUEST_ENTITY_TOO_LARGE() {
      return 413;
    },
    /*_internal.HttpStatus.REQUEST_URI_TOO_LONG*/get REQUEST_URI_TOO_LONG() {
      return 414;
    },
    /*_internal.HttpStatus.UNSUPPORTED_MEDIA_TYPE*/get UNSUPPORTED_MEDIA_TYPE() {
      return 415;
    },
    /*_internal.HttpStatus.REQUESTED_RANGE_NOT_SATISFIABLE*/get REQUESTED_RANGE_NOT_SATISFIABLE() {
      return 416;
    },
    /*_internal.HttpStatus.EXPECTATION_FAILED*/get EXPECTATION_FAILED() {
      return 417;
    },
    /*_internal.HttpStatus.UPGRADE_REQUIRED*/get UPGRADE_REQUIRED() {
      return 426;
    },
    /*_internal.HttpStatus.INTERNAL_SERVER_ERROR*/get INTERNAL_SERVER_ERROR() {
      return 500;
    },
    /*_internal.HttpStatus.NOT_IMPLEMENTED*/get NOT_IMPLEMENTED() {
      return 501;
    },
    /*_internal.HttpStatus.BAD_GATEWAY*/get BAD_GATEWAY() {
      return 502;
    },
    /*_internal.HttpStatus.SERVICE_UNAVAILABLE*/get SERVICE_UNAVAILABLE() {
      return 503;
    },
    /*_internal.HttpStatus.GATEWAY_TIMEOUT*/get GATEWAY_TIMEOUT() {
      return 504;
    },
    /*_internal.HttpStatus.HTTP_VERSION_NOT_SUPPORTED*/get HTTP_VERSION_NOT_SUPPORTED() {
      return 505;
    },
    /*_internal.HttpStatus.NETWORK_CONNECT_TIMEOUT_ERROR*/get NETWORK_CONNECT_TIMEOUT_ERROR() {
      return 599;
    }
  }, false);
  var _previousLink = dart.privateName(_internal, "DoubleLinkedQueueEntry._previousLink");
  var _nextLink = dart.privateName(_internal, "DoubleLinkedQueueEntry._nextLink");
  var element$ = dart.privateName(_internal, "DoubleLinkedQueueEntry.element");
  var _previousLink$ = dart.privateName(_internal, "_previousLink");
  var _nextLink$ = dart.privateName(_internal, "_nextLink");
  var _link = dart.privateName(_internal, "_link");
  _internal.DoubleLinkedQueueEntry$ = dart.generic(E => {
    var __t$DoubleLinkedQueueEntryOfE = () => (__t$DoubleLinkedQueueEntryOfE = dart.constFn(E[_eval]("_internal|DoubleLinkedQueueEntry<0>")))();
    var __t$DoubleLinkedQueueEntryNOfE = () => (__t$DoubleLinkedQueueEntryNOfE = dart.constFn(E[_eval]("_internal|DoubleLinkedQueueEntry<0>?")))();
    var __t$DoubleLinkedQueueEntryNOfEAndDoubleLinkedQueueEntryNOfETovoid = () => (__t$DoubleLinkedQueueEntryNOfEAndDoubleLinkedQueueEntryNOfETovoid = dart.constFn(E[_eval]("~(_internal|DoubleLinkedQueueEntry<0>?,_internal|DoubleLinkedQueueEntry<0>?)")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    var __t$VoidToDoubleLinkedQueueEntryNOfE = () => (__t$VoidToDoubleLinkedQueueEntryNOfE = dart.constFn(E[_eval]("_internal|DoubleLinkedQueueEntry<0>?()")))();
    var __t$DoubleLinkedQueueEntryOfE$ = () => (__t$DoubleLinkedQueueEntryOfE$ = dart.constFn(_internal.DoubleLinkedQueueEntry$(E)))();
    class DoubleLinkedQueueEntry extends core.Object {
      get [_previousLink$]() {
        return this[_previousLink];
      }
      set [_previousLink$](value) {
        this[_previousLink] = __t$DoubleLinkedQueueEntryNOfE()[_as](value);
      }
      get [_nextLink$]() {
        return this[_nextLink];
      }
      set [_nextLink$](value) {
        this[_nextLink] = __t$DoubleLinkedQueueEntryNOfE()[_as](value);
      }
      get element() {
        return this[element$];
      }
      set element(value) {
        this[element$] = E[_as](value);
      }
      static ['_#new#tearOff'](E, element) {
        return new (_internal.DoubleLinkedQueueEntry$(E)).new(element);
      }
      [_link](previous, next) {
        let t$3628, t$3628$;
        this[_nextLink$] = next;
        this[_previousLink$] = previous;
        t$3628 = previous;
        t$3628 == null ? null : t$3628[_nextLink$] = this;
        t$3628$ = next;
        t$3628$ == null ? null : t$3628$[_previousLink$] = this;
      }
      append(e) {
        E[_as](e);
        new (__t$DoubleLinkedQueueEntryOfE$()).new(e)[_link](this, this[_nextLink$]);
      }
      prepend(e) {
        E[_as](e);
        new (__t$DoubleLinkedQueueEntryOfE$()).new(e)[_link](this[_previousLink$], this);
      }
      remove() {
        let t$3628, t$3628$;
        t$3628 = this[_previousLink$];
        t$3628 == null ? null : t$3628[_nextLink$] = this[_nextLink$];
        t$3628$ = this[_nextLink$];
        t$3628$ == null ? null : t$3628$[_previousLink$] = this[_previousLink$];
        this[_nextLink$] = null;
        this[_previousLink$] = null;
        return this.element;
      }
      previousEntry() {
        return this[_previousLink$];
      }
      nextEntry() {
        return this[_nextLink$];
      }
    }
    (DoubleLinkedQueueEntry.new = function(element) {
      this[_previousLink] = null;
      this[_nextLink] = null;
      this[element$] = element;
      this.$ti = this.$ti || __t$DoubleLinkedQueueEntryOfE();
      ;
    }).prototype = DoubleLinkedQueueEntry.prototype;
    dart.addRtiResources(DoubleLinkedQueueEntry, ["_internal|DoubleLinkedQueueEntry"]);
    dart.setMethodSignature(DoubleLinkedQueueEntry, () => dart.global.Object.setPrototypeOf({
      [_link]: __t$DoubleLinkedQueueEntryNOfEAndDoubleLinkedQueueEntryNOfETovoid(),
      append: T$.ObjectNTovoid(),
      prepend: T$.ObjectNTovoid(),
      remove: __t$VoidToE(),
      previousEntry: __t$VoidToDoubleLinkedQueueEntryNOfE(),
      nextEntry: __t$VoidToDoubleLinkedQueueEntryNOfE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(DoubleLinkedQueueEntry))));
    dart.setLibraryUri(DoubleLinkedQueueEntry, I[36]);
    dart.setFieldSignature(DoubleLinkedQueueEntry, () => dart.global.Object.setPrototypeOf({
      [_previousLink$]: {type: __t$DoubleLinkedQueueEntryNOfE(), isConst: false, isFinal: false, libraryUri: I[36]},
      [_nextLink$]: {type: __t$DoubleLinkedQueueEntryNOfE(), isConst: false, isFinal: false, libraryUri: I[36]},
      element: {type: E, isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(DoubleLinkedQueueEntry))));
    return DoubleLinkedQueueEntry;
  });
  _internal.DoubleLinkedQueueEntry = _internal.DoubleLinkedQueueEntry$();
  var _source$ = dart.privateName(_internal, "_source");
  var _add = dart.privateName(async, "_add");
  var _closeUnchecked = dart.privateName(async, "_closeUnchecked");
  var _addError = dart.privateName(async, "_addError");
  var _completeError = dart.privateName(async, "_completeError");
  var _complete = dart.privateName(async, "_complete");
  var _sink$ = dart.privateName(async, "_sink");
  async.Stream$ = dart.generic(T => {
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$StreamConsumerOfT = () => (__t$StreamConsumerOfT = dart.constFn(T[_eval]("async|StreamConsumer<0>")))();
    var __t$TAndTToT = () => (__t$TAndTToT = dart.constFn(T[_eval]("0(0,0)")))();
    var __t$VoidToT = () => (__t$VoidToT = dart.constFn(T[_eval]("0()")))();
    var __t$TToNull = () => (__t$TToNull = dart.constFn(T[_eval]("core|Null(0)")))();
    var __t$ListOfT = () => (__t$ListOfT = dart.constFn(T[_eval]("core|List<0>")))();
    var __t$SetOfT = () => (__t$SetOfT = dart.constFn(T[_eval]("core|Set<0>")))();
    var __t$VoidToNT = () => (__t$VoidToNT = dart.constFn(T[_eval]("0()?")))();
    var __t$FutureOrOfTTovoid = () => (__t$FutureOrOfTTovoid = dart.constFn(T[_eval]("~(0/)")))();
    var __t$EventSinkOfT = () => (__t$EventSinkOfT = dart.constFn(T[_eval]("async|EventSink<0>")))();
    var __t$_ControllerEventSinkWrapperOfT = () => (__t$_ControllerEventSinkWrapperOfT = dart.constFn(T[_eval]("async|_ControllerEventSinkWrapper<0>")))();
    var __t$__ToStreamOfT = () => (__t$__ToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>({onCancel:~(async|StreamSubscription<0>)?,onListen:~(async|StreamSubscription<0>)?})")))();
    var __t$FnToStreamOfT = () => (__t$FnToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|bool(0))")))();
    var __t$FnToStreamOfS = () => (__t$FnToStreamOfS = dart.constFn(T[_eval]("async|Stream<0^>(0^(0))<core|Object?>")))();
    var __t$FnToStreamOfE = () => (__t$FnToStreamOfE = dart.constFn(T[_eval]("async|Stream<0^>(0^/(0))<core|Object?>")))();
    var __t$FnToStreamOfE$ = () => (__t$FnToStreamOfE$ = dart.constFn(T[_eval]("async|Stream<0^>(async|Stream<0^>?(0))<core|Object?>")))();
    var __t$Function__ToStreamOfT = () => (__t$Function__ToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|Function{test:core|bool(@)?})")))();
    var __t$FnToStreamOfS$ = () => (__t$FnToStreamOfS$ = dart.constFn(T[_eval]("async|Stream<0^>(core|Iterable<0^>(0))<core|Object?>")))();
    var __t$ObjectNToFutureOfT = () => (__t$ObjectNToFutureOfT = dart.constFn(T[_eval]("async|Future<0>(core|Object?)")))();
    var __t$SAndFnToFutureOfS = () => (__t$SAndFnToFutureOfS = dart.constFn(T[_eval]("async|Future<0^>(0^,0^(0^,0))<core|Object?>")))();
    var __t$FnToFutureOfvoid = () => (__t$FnToFutureOfvoid = dart.constFn(T[_eval]("async|Future<~>(~(0))")))();
    var __t$FnToFutureOfbool = () => (__t$FnToFutureOfbool = dart.constFn(T[_eval]("async|Future<core|bool>(core|bool(0))")))();
    var __t$VoidToFutureOfListOfT = () => (__t$VoidToFutureOfListOfT = dart.constFn(T[_eval]("async|Future<core|List<0>>()")))();
    var __t$VoidToFutureOfSetOfT = () => (__t$VoidToFutureOfSetOfT = dart.constFn(T[_eval]("async|Future<core|Set<0>>()")))();
    var __t$intToStreamOfT = () => (__t$intToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|int)")))();
    var __t$FnToStreamOfT$ = () => (__t$FnToStreamOfT$ = dart.constFn(T[_eval]("async|Stream<0>([core|bool(0,0)?])")))();
    var __t$FutureOfT = () => (__t$FutureOfT = dart.constFn(T[_eval]("async|Future<0>")))();
    var __t$Fn__ToFutureOfT = () => (__t$Fn__ToFutureOfT = dart.constFn(T[_eval]("async|Future<0>(core|bool(0){orElse:core|Object?})")))();
    var __t$intToFutureOfT = () => (__t$intToFutureOfT = dart.constFn(T[_eval]("async|Future<0>(core|int)")))();
    var __t$Duration__ToStreamOfT = () => (__t$Duration__ToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|Duration{onTimeout:~(async|EventSink<0>)?})")))();
    var __t$_AsBroadcastStreamOfT = () => (__t$_AsBroadcastStreamOfT = dart.constFn(async._AsBroadcastStream$(T)))();
    var __t$_WhereStreamOfT = () => (__t$_WhereStreamOfT = dart.constFn(async._WhereStream$(T)))();
    var __t$_HandleErrorStreamOfT = () => (__t$_HandleErrorStreamOfT = dart.constFn(async._HandleErrorStream$(T)))();
    var __t$_FutureOfT = () => (__t$_FutureOfT = dart.constFn(async._Future$(T)))();
    var __t$JSArrayOfT = () => (__t$JSArrayOfT = dart.constFn(_interceptors.JSArray$(T)))();
    var __t$_FutureOfListOfT = () => (__t$_FutureOfListOfT = dart.constFn(async._Future$(__t$ListOfT())))();
    var __t$_HashSetOfT = () => (__t$_HashSetOfT = dart.constFn(collection._HashSet$(T)))();
    var __t$_FutureOfSetOfT = () => (__t$_FutureOfSetOfT = dart.constFn(async._Future$(__t$SetOfT())))();
    var __t$_TakeStreamOfT = () => (__t$_TakeStreamOfT = dart.constFn(async._TakeStream$(T)))();
    var __t$_TakeWhileStreamOfT = () => (__t$_TakeWhileStreamOfT = dart.constFn(async._TakeWhileStream$(T)))();
    var __t$_SkipStreamOfT = () => (__t$_SkipStreamOfT = dart.constFn(async._SkipStream$(T)))();
    var __t$_SkipWhileStreamOfT = () => (__t$_SkipWhileStreamOfT = dart.constFn(async._SkipWhileStream$(T)))();
    var __t$_DistinctStreamOfT = () => (__t$_DistinctStreamOfT = dart.constFn(async._DistinctStream$(T)))();
    var __t$_SyncBroadcastStreamControllerOfT = () => (__t$_SyncBroadcastStreamControllerOfT = dart.constFn(async._SyncBroadcastStreamController$(T)))();
    var __t$_SyncStreamControllerOfT = () => (__t$_SyncStreamControllerOfT = dart.constFn(async._SyncStreamController$(T)))();
    var __t$_ControllerEventSinkWrapperOfT$ = () => (__t$_ControllerEventSinkWrapperOfT$ = dart.constFn(async._ControllerEventSinkWrapper$(T)))();
    class Stream extends core.Object {
      static ['_#empty#tearOff'](T, opts) {
        let broadcast = opts && 'broadcast' in opts ? opts.broadcast : true;
        if (broadcast == null) dart.nullFailed(I[38], 165, 50, "broadcast");
        return new (async._EmptyStream$(T)).new({broadcast: broadcast});
      }
      static value(value) {
        let t$3628;
        return (t$3628 = new (async._AsyncStreamController$(T)).new(null, null, null, null), (() => {
          t$3628[_add](value);
          t$3628[_closeUnchecked]();
          return t$3628;
        })()).stream;
      }
      static ['_#value#tearOff'](T, value) {
        return async.Stream$(T).value(value);
      }
      static error(error, stackTrace = null) {
        let t$3629, t$3628;
        if (error == null) dart.nullFailed(I[38], 214, 31, "error");
        _internal.checkNotNullable(T$.Object(), error, "error");
        return (t$3628 = new (async._AsyncStreamController$(T)).new(null, null, null, null), (() => {
          t$3628[_addError](error, (t$3629 = stackTrace, t$3629 == null ? async.AsyncError.defaultStackTrace(error) : t$3629));
          t$3628[_closeUnchecked]();
          return t$3628;
        })()).stream;
      }
      static ['_#error#tearOff'](T, error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[38], 214, 31, "error");
        return async.Stream$(T).error(error, stackTrace);
      }
      static fromFuture(future) {
        if (future == null) dart.nullFailed(I[38], 243, 39, "future");
        let controller = new (async._SyncStreamController$(T)).new(null, null, null, null);
        future.then(T$.Null(), dart.fn(value => {
          controller[_add](value);
          controller[_closeUnchecked]();
        }, T[_eval]("core|Null(0)")), {onError: dart.fn((error, stackTrace) => {
            controller[_addError](T$.Object()[_as](error), T$.StackTrace()[_as](stackTrace));
            controller[_closeUnchecked]();
          }, T$.dynamicAnddynamicToNull())});
        return controller.stream;
      }
      static ['_#fromFuture#tearOff'](T, future) {
        if (future == null) dart.nullFailed(I[38], 243, 39, "future");
        return async.Stream$(T).fromFuture(future);
      }
      static fromFutures(futures) {
        if (futures == null) dart.nullFailed(I[38], 293, 50, "futures");
        let controller = new (async._SyncStreamController$(T)).new(null, null, null, null);
        let count = 0;
        function onValue(value) {
          if (!dart.test(controller.isClosed)) {
            controller[_add](value);
            if ((count = count - 1) === 0) controller[_closeUnchecked]();
          }
        }
        dart.fn(onValue, T[_eval]("~(0)"));
        function onError(error, stack) {
          if (error == null) dart.nullFailed(I[38], 307, 25, "error");
          if (stack == null) dart.nullFailed(I[38], 307, 43, "stack");
          if (!dart.test(controller.isClosed)) {
            controller[_addError](error, stack);
            if ((count = count - 1) === 0) controller[_closeUnchecked]();
          }
        }
        dart.fn(onError, T$.ObjectAndStackTraceTovoid());
        for (let future of futures) {
          count = count + 1;
          future.then(T$.void(), onValue, {onError: onError});
        }
        if (count === 0) async.scheduleMicrotask(dart.bind(controller, 'close'));
        return controller.stream;
      }
      static ['_#fromFutures#tearOff'](T, futures) {
        if (futures == null) dart.nullFailed(I[38], 293, 50, "futures");
        return async.Stream$(T).fromFutures(futures);
      }
      static ['_#fromIterable#tearOff'](T, elements) {
        if (elements == null) dart.nullFailed(I[38], 346, 43, "elements");
        return async.Stream$(T).fromIterable(elements);
      }
      static fromIterable(elements) {
        if (elements == null) dart.nullFailed(I[38], 346, 43, "elements");
        return async.Stream$(T).multi(dart.fn(controller => {
          if (controller == null) dart.nullFailed(I[38], 347, 24, "controller");
          let iterator = null;
          try {
            iterator = elements[$iterator];
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            let s = dart.stackTrace(t$36$35e);
            if (T$.Object()[_is](e)) {
              controller.addError(e, s);
              controller.close();
              return;
            } else
              throw t$36$35e;
          }
          let zone = async.Zone.current;
          let isScheduled = true;
          function next() {
            if (!dart.test(controller.hasListener) || dart.test(controller.isPaused)) {
              isScheduled = false;
              return;
            }
            let hasNext = null;
            try {
              hasNext = iterator.moveNext();
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                controller.addErrorSync(e, s);
                controller.closeSync();
                return;
              } else
                throw t$36$35e;
            }
            if (dart.test(hasNext)) {
              try {
                controller.addSync(iterator.current);
              } catch (t$36$35e$) {
                let e = dart.getThrown(t$36$35e$);
                let s = dart.stackTrace(t$36$35e$);
                if (T$.Object()[_is](e)) {
                  controller.addErrorSync(e, s);
                } else
                  throw t$36$35e$;
              }
              if (dart.test(controller.hasListener) && !dart.test(controller.isPaused)) {
                zone.scheduleMicrotask(next);
              } else {
                isScheduled = false;
              }
            } else {
              controller.closeSync();
            }
          }
          dart.fn(next, T$.VoidTovoid());
          controller.onResume = dart.fn(() => {
            if (!isScheduled) {
              isScheduled = true;
              zone.scheduleMicrotask(next);
            }
          }, T$.VoidTovoid());
          zone.scheduleMicrotask(next);
        }, T[_eval]("~(async|MultiStreamController<0>)")));
      }
      static ['_#multi#tearOff'](T, onListen, opts) {
        if (onListen == null) dart.nullFailed(I[38], 463, 64, "onListen");
        let isBroadcast = opts && 'isBroadcast' in opts ? opts.isBroadcast : false;
        if (isBroadcast == null) dart.nullFailed(I[38], 464, 13, "isBroadcast");
        return async.Stream$(T).multi(onListen, {isBroadcast: isBroadcast});
      }
      static multi(onListen, opts) {
        if (onListen == null) dart.nullFailed(I[38], 463, 64, "onListen");
        let isBroadcast = opts && 'isBroadcast' in opts ? opts.isBroadcast : false;
        if (isBroadcast == null) dart.nullFailed(I[38], 464, 13, "isBroadcast");
        return new (async._MultiStream$(T)).new(onListen, isBroadcast);
      }
      static ['_#periodic#tearOff'](T, period, computation = null) {
        if (period == null) dart.nullFailed(I[38], 489, 36, "period");
        return async.Stream$(T).periodic(period, computation);
      }
      static periodic(period, computation = null) {
        if (period == null) dart.nullFailed(I[38], 489, 36, "period");
        if (computation == null && !dart.test(_internal.typeAcceptsNull(T))) {
          dart.throw(new core.ArgumentError.value(null, "computation", "Must not be omitted when the event type is non-nullable"));
        }
        let controller = new (async._SyncStreamController$(T)).new(null, null, null, null);
        let watch = new core.Stopwatch.new();
        controller.onListen = dart.fn(() => {
          let t$3632;
          let computationCount = 0;
          function sendEvent(_) {
            let t$3631;
            watch.reset();
            if (computation != null) {
              let event = null;
              try {
                event = computation((t$3631 = computationCount, computationCount = t$3631 + 1, t$3631));
              } catch (t$36$35e) {
                let e = dart.getThrown(t$36$35e);
                let s = dart.stackTrace(t$36$35e);
                if (T$.Object()[_is](e)) {
                  controller.addError(e, s);
                  return;
                } else
                  throw t$36$35e;
              }
              controller.add(event);
            } else {
              controller.add(T[_as](null));
            }
          }
          dart.fn(sendEvent, T$.dynamicTovoid());
          let timer = async.Timer.periodic(period, sendEvent);
          t$3632 = controller;
          (() => {
            t$3632.onCancel = dart.fn(() => {
              timer.cancel();
              return async.Future._nullFuture;
            }, T$.VoidTo_FutureOfNull());
            t$3632.onPause = dart.fn(() => {
              watch.stop();
              timer.cancel();
            }, T$.VoidTovoid());
            t$3632.onResume = dart.fn(() => {
              let elapsed = watch.elapsed;
              watch.start();
              timer = async.Timer.new(period['-'](elapsed), dart.fn(() => {
                timer = async.Timer.periodic(period, sendEvent);
                sendEvent(null);
              }, T$.VoidTovoid()));
            }, T$.VoidTovoid());
            return t$3632;
          })();
        }, T$.VoidTovoid());
        return controller.stream;
      }
      static eventTransformed(source, mapSink) {
        if (source == null) dart.nullFailed(I[38], 577, 23, "source");
        if (mapSink == null) dart.nullFailed(I[38], 577, 50, "mapSink");
        return new (async._BoundSinkStream$(T$.dynamic(), T)).new(source, mapSink);
      }
      static ['_#eventTransformed#tearOff'](T, source, mapSink) {
        if (source == null) dart.nullFailed(I[38], 577, 23, "source");
        if (mapSink == null) dart.nullFailed(I[38], 577, 50, "mapSink");
        return async.Stream$(T).eventTransformed(source, mapSink);
      }
      static castFrom(S, T, source) {
        if (source == null) dart.nullFailed(I[38], 587, 45, "source");
        return new (_internal.CastStream$(S, T)).new(source);
      }
      get isBroadcast() {
        return false;
      }
      asBroadcastStream(opts) {
        let onListen = opts && 'onListen' in opts ? opts.onListen : null;
        let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
        return new (__t$_AsBroadcastStreamOfT()).new(this, onListen, onCancel);
      }
      where(test) {
        if (test == null) dart.nullFailed(I[38], 727, 24, "test");
        return new (__t$_WhereStreamOfT()).new(this, test);
      }
      map(S, convert) {
        if (convert == null) dart.nullFailed(I[38], 771, 22, "convert");
        return new (async._MapStream$(T, S)).new(this, convert);
      }
      asyncMap(E, convert) {
        if (convert == null) dart.nullFailed(I[38], 784, 37, "convert");
        let controller = null;
        if (dart.test(this.isBroadcast)) {
          controller = new (async._SyncBroadcastStreamController$(E)).new(null, null);
        } else {
          controller = new (async._SyncStreamController$(E)).new(null, null, null, null);
        }
        controller.onListen = dart.fn(() => {
          let t$3633;
          let subscription = this.listen(null, {onError: dart.bind(controller, _addError), onDone: dart.bind(controller, 'close')});
          function add(value) {
            controller.add(value);
          }
          dart.fn(add, E[_eval]("async|Future<core|Null>?(0)"));
          let addError = dart.bind(controller, _addError);
          let resume = dart.bind(subscription, 'resume');
          subscription.onData(dart.fn(event => {
            let newValue = null;
            try {
              newValue = convert(event);
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                controller.addError(e, s);
                return;
              } else
                throw t$36$35e;
            }
            if (E[_eval]("async|Future<0>")[_is](newValue)) {
              subscription.pause();
              newValue.then(T$.Null(), add, {onError: addError}).whenComplete(resume);
            } else {
              controller.add(newValue);
            }
          }, __t$TTovoid()));
          controller.onCancel = dart.bind(subscription, 'cancel');
          if (!dart.test(this.isBroadcast)) {
            t$3633 = controller;
            (() => {
              t$3633.onPause = dart.bind(subscription, 'pause');
              t$3633.onResume = resume;
              return t$3633;
            })();
          }
        }, T$.VoidTovoid());
        return controller.stream;
      }
      asyncExpand(E, convert) {
        if (convert == null) dart.nullFailed(I[38], 843, 39, "convert");
        let controller = null;
        if (dart.test(this.isBroadcast)) {
          controller = new (async._SyncBroadcastStreamController$(E)).new(null, null);
        } else {
          controller = new (async._SyncStreamController$(E)).new(null, null, null, null);
        }
        controller.onListen = dart.fn(() => {
          let t$3634;
          let subscription = this.listen(null, {onError: dart.bind(controller, _addError), onDone: dart.bind(controller, 'close')});
          subscription.onData(dart.fn(event => {
            let newStream = null;
            try {
              newStream = convert(event);
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                controller.addError(e, s);
                return;
              } else
                throw t$36$35e;
            }
            if (newStream != null) {
              subscription.pause();
              controller.addStream(newStream).whenComplete(dart.bind(subscription, 'resume'));
            }
          }, __t$TTovoid()));
          controller.onCancel = dart.bind(subscription, 'cancel');
          if (!dart.test(this.isBroadcast)) {
            t$3634 = controller;
            (() => {
              t$3634.onPause = dart.bind(subscription, 'pause');
              t$3634.onResume = dart.bind(subscription, 'resume');
              return t$3634;
            })();
          }
        }, T$.VoidTovoid());
        return controller.stream;
      }
      handleError(onError, opts) {
        if (onError == null) dart.nullFailed(I[38], 925, 34, "onError");
        let test = opts && 'test' in opts ? opts.test : null;
        let callback = null;
        if (T$.ObjectAndStackTraceTovoid()[_is](onError)) {
          callback = onError;
        } else if (T$.ObjectTovoid()[_is](onError)) {
          callback = dart.fn((error, _) => {
            if (error == null) dart.nullFailed(I[38], 930, 26, "error");
            if (_ == null) dart.nullFailed(I[38], 930, 44, "_");
            onError(error);
          }, T$.ObjectAndStackTraceTovoid());
        } else {
          dart.throw(new core.ArgumentError.value(onError, "onError", "Error handler must accept one Object or one Object and a StackTrace as arguments."));
        }
        return new (__t$_HandleErrorStreamOfT()).new(this, callback, test);
      }
      expand(S, convert) {
        if (convert == null) dart.nullFailed(I[38], 960, 35, "convert");
        return new (async._ExpandStream$(T, S)).new(this, convert);
      }
      pipe(streamConsumer) {
        __t$StreamConsumerOfT()[_as](streamConsumer);
        if (streamConsumer == null) dart.nullFailed(I[38], 978, 33, "streamConsumer");
        return streamConsumer.addStream(this).then(T$.dynamic(), dart.fn(_ => streamConsumer.close(), T$.dynamicToFuture()));
      }
      transform(S, streamTransformer) {
        T[_eval]("@<0>")[_bind](S)[_eval]("async|StreamTransformer<1,2>")[_as](streamTransformer);
        if (streamTransformer == null) dart.nullFailed(I[38], 1007, 50, "streamTransformer");
        return streamTransformer.bind(this);
      }
      reduce(combine) {
        __t$TAndTToT()[_as](combine);
        if (combine == null) dart.nullFailed(I[38], 1035, 22, "combine");
        let result = new (__t$_FutureOfT()).new();
        let seenFirst = false;
        let value = null;
        let t$36$35value$35isSet = false;
        function t$36$35value$35get() {
          return t$36$35value$35isSet ? value : dart.throw(new _internal.LateError.localNI("value"));
        }
        function t$36$35value$35set(value$35param) {
          t$36$35value$35isSet = true;
          return value = value$35param;
        }
        let subscription = this.listen(null, {onError: dart.bind(result, _completeError), onDone: dart.fn(() => {
            if (!seenFirst) {
              try {
                dart.throw(_internal.IterableElementError.noElement());
              } catch (t$36$35e) {
                let e = dart.getThrown(t$36$35e);
                let s = dart.stackTrace(t$36$35e);
                if (T$.Object()[_is](e)) {
                  async._completeWithErrorCallback(result, e, s);
                } else
                  throw t$36$35e;
              }
            } else {
              result[_complete](t$36$35value$35get());
            }
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(element => {
          if (seenFirst) {
            async._runUserCode(T, dart.fn(() => combine(t$36$35value$35get(), element), __t$VoidToT()), dart.fn(newValue => {
              t$36$35value$35set(newValue);
            }, __t$TToNull()), async._cancelAndErrorClosure(subscription, result));
          } else {
            t$36$35value$35set(element);
            seenFirst = true;
          }
        }, __t$TTovoid()));
        return result;
      }
      fold(S, initialValue, combine) {
        if (combine == null) dart.nullFailed(I[38], 1089, 39, "combine");
        let result = new (async._Future$(S)).new();
        let value = initialValue;
        let subscription = this.listen(null, {onError: dart.bind(result, _completeError), onDone: dart.fn(() => {
            result[_complete](value);
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(element => {
          async._runUserCode(S, dart.fn(() => combine(value, element), S[_eval]("0()")), dart.fn(newValue => {
            value = newValue;
          }, S[_eval]("core|Null(0)")), async._cancelAndErrorClosure(subscription, result));
        }, __t$TTovoid()));
        return result;
      }
      join(separator = "") {
        if (separator == null) dart.nullFailed(I[38], 1123, 31, "separator");
        let result = new (G._FutureOfString()).new();
        let buffer = new core.StringBuffer.new();
        let first = true;
        let subscription = this.listen(null, {onError: dart.bind(result, _completeError), onDone: dart.fn(() => {
            result[_complete](dart.toString(buffer));
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(separator[$isEmpty] ? dart.fn(element => {
          try {
            buffer.write(element);
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            let s = dart.stackTrace(t$36$35e);
            if (T$.Object()[_is](e)) {
              async._cancelAndErrorWithReplacement(subscription, result, e, s);
            } else
              throw t$36$35e;
          }
        }, __t$TTovoid()) : dart.fn(element => {
          if (!first) {
            buffer.write(separator);
          }
          first = false;
          try {
            buffer.write(element);
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            let s = dart.stackTrace(t$36$35e);
            if (T$.Object()[_is](e)) {
              async._cancelAndErrorWithReplacement(subscription, result, e, s);
            } else
              throw t$36$35e;
          }
        }, __t$TTovoid()));
        return result;
      }
      contains(needle) {
        let future = new (G._FutureOfbool()).new();
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            future[_complete](false);
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(element => {
          async._runUserCode(T$.bool(), dart.fn(() => dart.equals(element, needle), T$.VoidTobool()), dart.fn(isMatch => {
            if (isMatch == null) dart.nullFailed(I[38], 1177, 53, "isMatch");
            if (dart.test(isMatch)) {
              async._cancelAndValue(subscription, future, true);
            }
          }, T$.boolToNull()), async._cancelAndErrorClosure(subscription, future));
        }, __t$TTovoid()));
        return future;
      }
      forEach(action) {
        if (action == null) dart.nullFailed(I[38], 1194, 29, "action");
        let future = new async._Future.new();
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            future[_complete](null);
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(element => {
          async._runUserCode(T$.void(), dart.fn(() => action(element), T$.VoidTovoid()), dart.fn(_ => {
          }, T$.voidToNull()), async._cancelAndErrorClosure(subscription, future));
        }, __t$TTovoid()));
        return future;
      }
      every(test) {
        if (test == null) dart.nullFailed(I[38], 1228, 27, "test");
        let future = new (G._FutureOfbool()).new();
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            future[_complete](true);
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(element => {
          async._runUserCode(T$.bool(), dart.fn(() => test(element), T$.VoidTobool()), dart.fn(isMatch => {
            if (isMatch == null) dart.nullFailed(I[38], 1235, 47, "isMatch");
            if (!dart.test(isMatch)) {
              async._cancelAndValue(subscription, future, false);
            }
          }, T$.boolToNull()), async._cancelAndErrorClosure(subscription, future));
        }, __t$TTovoid()));
        return future;
      }
      any(test) {
        if (test == null) dart.nullFailed(I[38], 1266, 25, "test");
        let future = new (G._FutureOfbool()).new();
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            future[_complete](false);
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(element => {
          async._runUserCode(T$.bool(), dart.fn(() => test(element), T$.VoidTobool()), dart.fn(isMatch => {
            if (isMatch == null) dart.nullFailed(I[38], 1273, 47, "isMatch");
            if (dart.test(isMatch)) {
              async._cancelAndValue(subscription, future, true);
            }
          }, T$.boolToNull()), async._cancelAndErrorClosure(subscription, future));
        }, __t$TTovoid()));
        return future;
      }
      get length() {
        let future = new (G._FutureOfint()).new();
        let count = 0;
        this.listen(dart.fn(_ => {
          count = count + 1;
        }, __t$TTovoid()), {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            future[_complete](count);
          }, T$.VoidTovoid()), cancelOnError: true});
        return future;
      }
      get isEmpty() {
        let future = new (G._FutureOfbool()).new();
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            future[_complete](true);
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(_ => {
          async._cancelAndValue(subscription, future, false);
        }, __t$TTovoid()));
        return future;
      }
      cast(R) {
        return async.Stream.castFrom(T, R, this);
      }
      toList() {
        let result = __t$JSArrayOfT().of([]);
        let future = new (__t$_FutureOfListOfT()).new();
        this.listen(dart.fn(data => {
          result[$add](data);
        }, __t$TTovoid()), {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            future[_complete](result);
          }, T$.VoidTovoid()), cancelOnError: true});
        return future;
      }
      toSet() {
        let result = new (__t$_HashSetOfT()).new();
        let future = new (__t$_FutureOfSetOfT()).new();
        this.listen(dart.fn(data => {
          result.add(data);
        }, __t$TTovoid()), {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            future[_complete](result);
          }, T$.VoidTovoid()), cancelOnError: true});
        return future;
      }
      drain(E, futureValue = null) {
        if (futureValue == null) {
          futureValue = E[_as](futureValue);
        }
        return this.listen(null, {cancelOnError: true}).asFuture(E, futureValue);
      }
      take(count) {
        if (count == null) dart.nullFailed(I[38], 1446, 22, "count");
        return new (__t$_TakeStreamOfT()).new(this, count);
      }
      takeWhile(test) {
        if (test == null) dart.nullFailed(I[38], 1477, 28, "test");
        return new (__t$_TakeWhileStreamOfT()).new(this, test);
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[38], 1501, 22, "count");
        return new (__t$_SkipStreamOfT()).new(this, count);
      }
      skipWhile(test) {
        if (test == null) dart.nullFailed(I[38], 1529, 28, "test");
        return new (__t$_SkipWhileStreamOfT()).new(this, test);
      }
      distinct(equals = null) {
        return new (__t$_DistinctStreamOfT()).new(this, equals);
      }
      get first() {
        let future = new (__t$_FutureOfT()).new();
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            try {
              dart.throw(_internal.IterableElementError.noElement());
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                async._completeWithErrorCallback(future, e, s);
              } else
                throw t$36$35e;
            }
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(value => {
          async._cancelAndValue(subscription, future, value);
        }, __t$TTovoid()));
        return future;
      }
      get last() {
        let future = new (__t$_FutureOfT()).new();
        let result = null;
        let t$36$35result$35isSet = false;
        function t$36$35result$35get() {
          return t$36$35result$35isSet ? result : dart.throw(new _internal.LateError.localNI("result"));
        }
        function t$36$35result$35set(result$35param) {
          t$36$35result$35isSet = true;
          return result = result$35param;
        }
        let foundResult = false;
        this.listen(dart.fn(value => {
          foundResult = true;
          t$36$35result$35set(value);
        }, __t$TTovoid()), {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            if (foundResult) {
              future[_complete](t$36$35result$35get());
              return;
            }
            try {
              dart.throw(_internal.IterableElementError.noElement());
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                async._completeWithErrorCallback(future, e, s);
              } else
                throw t$36$35e;
            }
          }, T$.VoidTovoid()), cancelOnError: true});
        return future;
      }
      get single() {
        let future = new (__t$_FutureOfT()).new();
        let result = null;
        let t$36$35result$35isSet = false;
        function t$36$35result$35get() {
          return t$36$35result$35isSet ? result : dart.throw(new _internal.LateError.localNI("result"));
        }
        function t$36$35result$35set(result$35param) {
          t$36$35result$35isSet = true;
          return result = result$35param;
        }
        let foundResult = false;
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            if (foundResult) {
              future[_complete](t$36$35result$35get());
              return;
            }
            try {
              dart.throw(_internal.IterableElementError.noElement());
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                async._completeWithErrorCallback(future, e, s);
              } else
                throw t$36$35e;
            }
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(value => {
          if (foundResult) {
            try {
              dart.throw(_internal.IterableElementError.tooMany());
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                async._cancelAndErrorWithReplacement(subscription, future, e, s);
              } else
                throw t$36$35e;
            }
            return;
          }
          foundResult = true;
          t$36$35result$35set(value);
        }, __t$TTovoid()));
        return future;
      }
      firstWhere(test, opts) {
        if (test == null) dart.nullFailed(I[38], 1703, 29, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNT()[_as](orElse);
        let future = new (__t$_FutureOfT()).new();
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            if (orElse != null) {
              async._runUserCode(T, orElse, __t$FutureOrOfTTovoid()[_as](dart.bind(future, _complete)), dart.bind(future, _completeError));
              return;
            }
            try {
              dart.throw(_internal.IterableElementError.noElement());
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                async._completeWithErrorCallback(future, e, s);
              } else
                throw t$36$35e;
            }
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(value => {
          async._runUserCode(T$.bool(), dart.fn(() => test(value), T$.VoidTobool()), dart.fn(isMatch => {
            if (isMatch == null) dart.nullFailed(I[38], 1720, 45, "isMatch");
            if (dart.test(isMatch)) {
              async._cancelAndValue(subscription, future, value);
            }
          }, T$.boolToNull()), async._cancelAndErrorClosure(subscription, future));
        }, __t$TTovoid()));
        return future;
      }
      lastWhere(test, opts) {
        if (test == null) dart.nullFailed(I[38], 1754, 28, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNT()[_as](orElse);
        let future = new (__t$_FutureOfT()).new();
        let result = null;
        let t$36$35result$35isSet = false;
        function t$36$35result$35get() {
          return t$36$35result$35isSet ? result : dart.throw(new _internal.LateError.localNI("result"));
        }
        function t$36$35result$35set(result$35param) {
          t$36$35result$35isSet = true;
          return result = result$35param;
        }
        let foundResult = false;
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            if (foundResult) {
              future[_complete](t$36$35result$35get());
              return;
            }
            if (orElse != null) {
              async._runUserCode(T, orElse, __t$FutureOrOfTTovoid()[_as](dart.bind(future, _complete)), dart.bind(future, _completeError));
              return;
            }
            try {
              dart.throw(_internal.IterableElementError.noElement());
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                async._completeWithErrorCallback(future, e, s);
              } else
                throw t$36$35e;
            }
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(value => {
          async._runUserCode(T$.bool(), dart.fn(() => test(value), T$.VoidTobool()), dart.fn(isMatch => {
            if (isMatch == null) dart.nullFailed(I[38], 1776, 45, "isMatch");
            if (dart.test(isMatch)) {
              foundResult = true;
              t$36$35result$35set(value);
            }
          }, T$.boolToNull()), async._cancelAndErrorClosure(subscription, future));
        }, __t$TTovoid()));
        return future;
      }
      singleWhere(test, opts) {
        if (test == null) dart.nullFailed(I[38], 1818, 30, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNT()[_as](orElse);
        let future = new (__t$_FutureOfT()).new();
        let result = null;
        let t$36$35result$35isSet = false;
        function t$36$35result$35get() {
          return t$36$35result$35isSet ? result : dart.throw(new _internal.LateError.localNI("result"));
        }
        function t$36$35result$35set(result$35param) {
          t$36$35result$35isSet = true;
          return result = result$35param;
        }
        let foundResult = false;
        let subscription = this.listen(null, {onError: dart.bind(future, _completeError), onDone: dart.fn(() => {
            if (foundResult) {
              future[_complete](t$36$35result$35get());
              return;
            }
            if (orElse != null) {
              async._runUserCode(T, orElse, __t$FutureOrOfTTovoid()[_as](dart.bind(future, _complete)), dart.bind(future, _completeError));
              return;
            }
            try {
              dart.throw(_internal.IterableElementError.noElement());
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                async._completeWithErrorCallback(future, e, s);
              } else
                throw t$36$35e;
            }
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(value => {
          async._runUserCode(T$.bool(), dart.fn(() => test(value), T$.VoidTobool()), dart.fn(isMatch => {
            if (isMatch == null) dart.nullFailed(I[38], 1840, 45, "isMatch");
            if (dart.test(isMatch)) {
              if (foundResult) {
                try {
                  dart.throw(_internal.IterableElementError.tooMany());
                } catch (t$36$35e) {
                  let e = dart.getThrown(t$36$35e);
                  let s = dart.stackTrace(t$36$35e);
                  if (T$.Object()[_is](e)) {
                    async._cancelAndErrorWithReplacement(subscription, future, e, s);
                  } else
                    throw t$36$35e;
                }
                return;
              }
              foundResult = true;
              t$36$35result$35set(value);
            }
          }, T$.boolToNull()), async._cancelAndErrorClosure(subscription, future));
        }, __t$TTovoid()));
        return future;
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[38], 1872, 27, "index");
        core.RangeError.checkNotNegative(index, "index");
        let result = new (__t$_FutureOfT()).new();
        let elementIndex = 0;
        let subscription = null;
        subscription = this.listen(null, {onError: dart.bind(result, _completeError), onDone: dart.fn(() => {
            result[_completeError](new core.IndexError.withLength(index, elementIndex, {indexable: this, name: "index"}), core.StackTrace.empty);
          }, T$.VoidTovoid()), cancelOnError: true});
        subscription.onData(dart.fn(value => {
          if (index === elementIndex) {
            async._cancelAndValue(subscription, result, value);
            return;
          }
          elementIndex = elementIndex + 1;
        }, __t$TTovoid()));
        return result;
      }
      timeout(timeLimit, opts) {
        if (timeLimit == null) dart.nullFailed(I[38], 1946, 30, "timeLimit");
        let onTimeout = opts && 'onTimeout' in opts ? opts.onTimeout : null;
        let controller = null;
        if (dart.test(this.isBroadcast)) {
          controller = new (__t$_SyncBroadcastStreamControllerOfT()).new(null, null);
        } else {
          controller = new (__t$_SyncStreamControllerOfT()).new(null, null, null, null);
        }
        let zone = async.Zone.current;
        let timeoutCallback = null;
        if (onTimeout == null) {
          timeoutCallback = dart.fn(() => {
            controller.addError(new async.TimeoutException.new("No stream event", timeLimit), null);
          }, T$.VoidTovoid());
        } else {
          let registeredOnTimeout = zone.registerUnaryCallback(T$.void(), __t$EventSinkOfT(), onTimeout);
          let wrapper = new (__t$_ControllerEventSinkWrapperOfT$()).new(null);
          timeoutCallback = dart.fn(() => {
            wrapper[_sink$] = controller;
            zone.runUnaryGuarded(__t$_ControllerEventSinkWrapperOfT(), registeredOnTimeout, wrapper);
            wrapper[_sink$] = null;
          }, T$.VoidTovoid());
        }
        controller.onListen = dart.fn(() => {
          let t$3660, t$3660$;
          let timer = zone.createTimer(timeLimit, timeoutCallback);
          let subscription = this.listen(null);
          t$3660 = subscription;
          (() => {
            t$3660.onData(dart.fn(event => {
              timer.cancel();
              timer = zone.createTimer(timeLimit, timeoutCallback);
              controller.add(event);
            }, __t$TTovoid()));
            t$3660.onError(dart.fn((error, stackTrace) => {
              if (error == null) dart.nullFailed(I[38], 1988, 27, "error");
              if (stackTrace == null) dart.nullFailed(I[38], 1988, 45, "stackTrace");
              timer.cancel();
              timer = zone.createTimer(timeLimit, timeoutCallback);
              controller[_addError](error, stackTrace);
            }, T$.ObjectAndStackTraceToNull()));
            t$3660.onDone(dart.fn(() => {
              timer.cancel();
              controller.close();
            }, T$.VoidTovoid()));
            return t$3660;
          })();
          controller.onCancel = dart.fn(() => {
            timer.cancel();
            return subscription.cancel();
          }, T$.VoidToFutureOfvoid());
          if (!dart.test(this.isBroadcast)) {
            t$3660$ = controller;
            (() => {
              t$3660$.onPause = dart.fn(() => {
                timer.cancel();
                subscription.pause();
              }, T$.VoidTovoid());
              t$3660$.onResume = dart.fn(() => {
                subscription.resume();
                timer = zone.createTimer(timeLimit, timeoutCallback);
              }, T$.VoidTovoid());
              return t$3660$;
            })();
          }
        }, T$.VoidTovoid());
        return controller.stream;
      }
    }
    (Stream.new = function() {
      this.$ti = this.$ti || __t$StreamOfT();
      ;
    }).prototype = Stream.prototype;
    dart.addRtiResources(Stream, ["async|Stream"]);
    dart.setMethodSignature(Stream, () => dart.global.Object.setPrototypeOf({
      asBroadcastStream: __t$__ToStreamOfT(),
      where: __t$FnToStreamOfT(),
      map: __t$FnToStreamOfS(),
      asyncMap: __t$FnToStreamOfE(),
      asyncExpand: __t$FnToStreamOfE$(),
      handleError: __t$Function__ToStreamOfT(),
      expand: __t$FnToStreamOfS$(),
      pipe: T$.ObjectNToFuture(),
      transform: dart_rti.findType("async|Stream<0^>(core|Object?)<core|Object?>"),
      reduce: __t$ObjectNToFutureOfT(),
      fold: __t$SAndFnToFutureOfS(),
      join: T$.StringToFutureOfString(),
      contains: T$.ObjectNToFutureOfbool(),
      forEach: __t$FnToFutureOfvoid(),
      every: __t$FnToFutureOfbool(),
      any: __t$FnToFutureOfbool(),
      cast: T$.VoidToStreamOfR(),
      toList: __t$VoidToFutureOfListOfT(),
      toSet: __t$VoidToFutureOfSetOfT(),
      drain: T$.ENToFutureOfE(),
      take: __t$intToStreamOfT(),
      takeWhile: __t$FnToStreamOfT(),
      skip: __t$intToStreamOfT(),
      skipWhile: __t$FnToStreamOfT(),
      distinct: __t$FnToStreamOfT$(),
      firstWhere: __t$Fn__ToFutureOfT(),
      lastWhere: __t$Fn__ToFutureOfT(),
      singleWhere: __t$Fn__ToFutureOfT(),
      elementAt: __t$intToFutureOfT(),
      timeout: __t$Duration__ToStreamOfT()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(Stream))));
    dart.setMethodsDefaultTypeArgSignature(Stream, () => dart.global.Object.setPrototypeOf({
      map: [T$.dynamic()],
      asyncMap: [T$.dynamic()],
      asyncExpand: [T$.dynamic()],
      expand: [T$.dynamic()],
      transform: [T$.dynamic()],
      fold: [T$.dynamic()],
      cast: [T$.dynamic()],
      drain: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(Stream))));
    dart.setStaticMethodSignature(Stream, () => ['empty', 'value', 'error', 'fromFuture', 'fromFutures', 'fromIterable', 'multi', 'periodic', 'eventTransformed', 'castFrom']);
    dart.setGetterSignature(Stream, () => dart.global.Object.setPrototypeOf({
      isBroadcast: T$.bool(),
      length: T$.FutureOfint(),
      isEmpty: T$.FutureOfbool(),
      first: __t$FutureOfT(),
      last: __t$FutureOfT(),
      single: __t$FutureOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(Stream))));
    dart.setLibraryUri(Stream, I[39]);
    return Stream;
  });
  async.Stream = async.Stream$();
  _internal.CastStream$ = dart.generic((S, T) => {
    var __t$CastStreamOfS$T = () => (__t$CastStreamOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|CastStream<1,2>")))();
    var __t$StreamOfS = () => (__t$StreamOfS = dart.constFn(S[_eval]("async|Stream<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$CastStreamSubscriptionOfS$T = () => (__t$CastStreamSubscriptionOfS$T = dart.constFn(_internal.CastStreamSubscription$(S, T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class CastStream extends __t$StreamOfT() {
      static ['_#new#tearOff'](S, T, _source) {
        if (_source == null) dart.nullFailed(I[37], 11, 19, "_source");
        return new (_internal.CastStream$(S, T)).new(_source);
      }
      get isBroadcast() {
        return this[_source$].isBroadcast;
      }
      listen(onData, opts) {
        let t$3628;
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        t$3628 = new (__t$CastStreamSubscriptionOfS$T()).new(this[_source$].listen(null, {onDone: onDone, cancelOnError: cancelOnError}));
        return (() => {
          t$3628.onData(onData);
          t$3628.onError(onError);
          return t$3628;
        })();
      }
      cast(R) {
        return new (_internal.CastStream$(S, R)).new(this[_source$]);
      }
    }
    (CastStream.new = function(_source) {
      if (_source == null) dart.nullFailed(I[37], 11, 19, "_source");
      this[_source$] = _source;
      this.$ti = this.$ti || __t$CastStreamOfS$T();
      dart.global.Object.getPrototypeOf(CastStream).new.call(this);
      ;
    }).prototype = CastStream.prototype;
    dart.addRtiResources(CastStream, ["_internal|CastStream"]);
    dart.setMethodSignature(CastStream, () => dart.global.Object.setPrototypeOf({listen: __t$Fn__ToStreamSubscriptionOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(CastStream))));
    dart.setLibraryUri(CastStream, I[36]);
    dart.setFieldSignature(CastStream, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$StreamOfS(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(CastStream))));
    return CastStream;
  });
  _internal.CastStream = _internal.CastStream$();
  var _zone = dart.privateName(_internal, "_zone");
  var _handleData = dart.privateName(_internal, "_handleData");
  var _handleError = dart.privateName(_internal, "_handleError");
  var _onData = dart.privateName(_internal, "_onData");
  _internal.CastStreamSubscription$ = dart.generic((S, T) => {
    var __t$CastStreamSubscriptionOfS$T = () => (__t$CastStreamSubscriptionOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|CastStreamSubscription<1,2>")))();
    var __t$StreamSubscriptionOfS = () => (__t$StreamSubscriptionOfS = dart.constFn(S[_eval]("async|StreamSubscription<0>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(T[_eval]("~(~(0)?)")))();
    var __t$TToNvoid = () => (__t$TToNvoid = dart.constFn(T[_eval]("~(0)?")))();
    class CastStreamSubscription extends core.Object {
      static ['_#new#tearOff'](S, T, _source) {
        if (_source == null) dart.nullFailed(I[37], 37, 31, "_source");
        return new (_internal.CastStreamSubscription$(S, T)).new(_source);
      }
      cancel() {
        return this[_source$].cancel();
      }
      onData(handleData) {
        this[_handleData] = handleData == null ? null : this[_zone].registerUnaryCallback(T$.dynamic(), T, handleData);
      }
      onError(handleError) {
        this[_source$].onError(handleError);
        if (handleError == null) {
          this[_handleError] = null;
        } else if (T$.ObjectAndStackTraceTovoid()[_is](handleError)) {
          this[_handleError] = this[_zone].registerBinaryCallback(T$.dynamic(), T$.Object(), T$.StackTrace(), handleError);
        } else if (T$.ObjectTovoid()[_is](handleError)) {
          this[_handleError] = this[_zone].registerUnaryCallback(T$.dynamic(), T$.Object(), handleError);
        } else {
          dart.throw(new core.ArgumentError.new("handleError callback must take either an Object (the error), or both an Object (the error) and a StackTrace."));
        }
      }
      onDone(handleDone) {
        this[_source$].onDone(handleDone);
      }
      [_onData](data) {
        S[_as](data);
        if (this[_handleData] == null) return;
        let targetData = null;
        try {
          targetData = T[_as](data);
        } catch (t$36$35e) {
          let error = dart.getThrown(t$36$35e);
          let stack = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](error)) {
            let handleError = this[_handleError];
            if (handleError == null) {
              this[_zone].handleUncaughtError(error, stack);
            } else if (T$.ObjectAndStackTraceTovoid()[_is](handleError)) {
              this[_zone].runBinaryGuarded(T$.Object(), T$.StackTrace(), handleError, error, stack);
            } else {
              this[_zone].runUnaryGuarded(T$.Object(), T$.ObjectTovoid()[_as](handleError), error);
            }
            return;
          } else
            throw t$36$35e;
        }
        this[_zone].runUnaryGuarded(T, dart.nullCheck(this[_handleData]), targetData);
      }
      pause(resumeSignal = null) {
        this[_source$].pause(resumeSignal);
      }
      resume() {
        this[_source$].resume();
      }
      get isPaused() {
        return this[_source$].isPaused;
      }
      asFuture(E, futureValue = null) {
        return this[_source$].asFuture(E, futureValue);
      }
    }
    (CastStreamSubscription.new = function(_source) {
      if (_source == null) dart.nullFailed(I[37], 37, 31, "_source");
      this[_zone] = async.Zone.current;
      this[_handleData] = null;
      this[_handleError] = null;
      this[_source$] = _source;
      this.$ti = this.$ti || __t$CastStreamSubscriptionOfS$T();
      this[_source$].onData(dart.bind(this, _onData));
    }).prototype = CastStreamSubscription.prototype;
    dart.addRtiResources(CastStreamSubscription, ["_internal|CastStreamSubscription", "async|StreamSubscription"]);
    dart.setMethodSignature(CastStreamSubscription, () => dart.global.Object.setPrototypeOf({
      cancel: T$.VoidToFuture(),
      onData: __t$FnTovoid(),
      onError: T$.FunctionNTovoid(),
      onDone: T$.FnTovoid$9(),
      [_onData]: T$.ObjectNTovoid(),
      pause: T$.FutureNTovoid(),
      resume: T$.VoidTovoid(),
      asFuture: T$.ENToFutureOfE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(CastStreamSubscription))));
    dart.setMethodsDefaultTypeArgSignature(CastStreamSubscription, () => dart.global.Object.setPrototypeOf({asFuture: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(CastStreamSubscription))));
    dart.setGetterSignature(CastStreamSubscription, () => dart.global.Object.setPrototypeOf({isPaused: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(CastStreamSubscription))));
    dart.setLibraryUri(CastStreamSubscription, I[36]);
    dart.setFieldSignature(CastStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [_source$]: {type: __t$StreamSubscriptionOfS(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_zone]: {type: T$.Zone(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_handleData]: {type: __t$TToNvoid(), isConst: false, isFinal: false},
      [_handleError]: {type: T$.FunctionN(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(CastStreamSubscription))));
    return CastStreamSubscription;
  });
  _internal.CastStreamSubscription = _internal.CastStreamSubscription$();
  async.StreamTransformerBase$ = dart.generic((S, T) => {
    var __t$StreamTransformerBaseOfS$T = () => (__t$StreamTransformerBaseOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|StreamTransformerBase<1,2>")))();
    class StreamTransformerBase extends core.Object {
      cast(RS, RT) {
        return async.StreamTransformer.castFrom(S, T, RS, RT, this);
      }
    }
    (StreamTransformerBase.new = function() {
      this.$ti = this.$ti || __t$StreamTransformerBaseOfS$T();
      ;
    }).prototype = StreamTransformerBase.prototype;
    dart.addRtiResources(StreamTransformerBase, ["async|StreamTransformerBase", "async|StreamTransformer"]);
    dart.setMethodSignature(StreamTransformerBase, () => dart.global.Object.setPrototypeOf({cast: T$.VoidToStreamTransformerOfRS$RT()}, dart.getMethods(dart.global.Object.getPrototypeOf(StreamTransformerBase))));
    dart.setMethodsDefaultTypeArgSignature(StreamTransformerBase, () => dart.global.Object.setPrototypeOf({cast: [T$.dynamic(), T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(StreamTransformerBase))));
    dart.setLibraryUri(StreamTransformerBase, I[39]);
    return StreamTransformerBase;
  });
  async.StreamTransformerBase = async.StreamTransformerBase$();
  _internal.CastStreamTransformer$ = dart.generic((SS, ST, TS, TT) => {
    var __t$CastStreamTransformerOfSS$ST$TS$TT = () => (__t$CastStreamTransformerOfSS$ST$TS$TT = dart.constFn(SS[_eval]("@<0>")[_bind](ST)[_bind](TS)[_bind](TT)[_eval]("_internal|CastStreamTransformer<1,2,3,4>")))();
    var __t$StreamTransformerOfSS$ST = () => (__t$StreamTransformerOfSS$ST = dart.constFn(SS[_eval]("@<0>")[_bind](ST)[_eval]("async|StreamTransformer<1,2>")))();
    var __t$StreamOfTS = () => (__t$StreamOfTS = dart.constFn(TS[_eval]("async|Stream<0>")))();
    var __t$ObjectNToStreamOfTT = () => (__t$ObjectNToStreamOfTT = dart.constFn(TT[_eval]("async|Stream<0>(core|Object?)")))();
    var __t$StreamTransformerBaseOfTS$TT = () => (__t$StreamTransformerBaseOfTS$TT = dart.constFn(async.StreamTransformerBase$(TS, TT)))();
    class CastStreamTransformer extends __t$StreamTransformerBaseOfTS$TT() {
      static ['_#new#tearOff'](SS, ST, TS, TT, _source) {
        if (_source == null) dart.nullFailed(I[37], 104, 30, "_source");
        return new (_internal.CastStreamTransformer$(SS, ST, TS, TT)).new(_source);
      }
      cast(RS, RT) {
        return new (_internal.CastStreamTransformer$(SS, ST, RS, RT)).new(this[_source$]);
      }
      bind(stream) {
        __t$StreamOfTS()[_as](stream);
        if (stream == null) dart.nullFailed(I[37], 108, 30, "stream");
        return this[_source$].bind(stream.cast(SS)).cast(TT);
      }
    }
    (CastStreamTransformer.new = function(_source) {
      if (_source == null) dart.nullFailed(I[37], 104, 30, "_source");
      this[_source$] = _source;
      this.$ti = this.$ti || __t$CastStreamTransformerOfSS$ST$TS$TT();
      dart.global.Object.getPrototypeOf(CastStreamTransformer).new.call(this);
      ;
    }).prototype = CastStreamTransformer.prototype;
    dart.addRtiResources(CastStreamTransformer, ["_internal|CastStreamTransformer"]);
    dart.setMethodSignature(CastStreamTransformer, () => dart.global.Object.setPrototypeOf({bind: __t$ObjectNToStreamOfTT()}, dart.getMethods(dart.global.Object.getPrototypeOf(CastStreamTransformer))));
    dart.setLibraryUri(CastStreamTransformer, I[36]);
    dart.setFieldSignature(CastStreamTransformer, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$StreamTransformerOfSS$ST(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(CastStreamTransformer))));
    return CastStreamTransformer;
  });
  _internal.CastStreamTransformer = _internal.CastStreamTransformer$();
  convert.Converter$ = dart.generic((S, T) => {
    var __t$ConverterOfS$T = () => (__t$ConverterOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("convert|Converter<1,2>")))();
    var __t$StreamOfS = () => (__t$StreamOfS = dart.constFn(S[_eval]("async|Stream<0>")))();
    var __t$ObjectNToSinkOfS = () => (__t$ObjectNToSinkOfS = dart.constFn(S[_eval]("core|Sink<0>(core|Object?)")))();
    var __t$SinkOfT = () => (__t$SinkOfT = dart.constFn(T[_eval]("core|Sink<0>")))();
    var __t$ObjectNToStreamOfT = () => (__t$ObjectNToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|Object?)")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class Converter extends core.Object {
      static castFrom(SS, ST, TS, TT, source) {
        if (source == null) dart.nullFailed(I[40], 21, 71, "source");
        return new (_internal.CastConverter$(SS, ST, TS, TT)).new(source);
      }
      fuse(TT, other) {
        T[_eval]("@<0>")[_bind](TT)[_eval]("convert|Converter<1,2>")[_as](other);
        if (other == null) dart.nullFailed(I[40], 31, 46, "other");
        return new (convert._FusedConverter$(S, T, TT)).new(this, other);
      }
      startChunkedConversion(sink) {
        __t$SinkOfT()[_as](sink);
        if (sink == null) dart.nullFailed(I[40], 39, 42, "sink");
        dart.throw(new core.UnsupportedError.new("This converter does not support chunked conversions: " + dart.str(this)));
      }
      bind(stream) {
        __t$StreamOfS()[_as](stream);
        if (stream == null) dart.nullFailed(I[40], 44, 28, "stream");
        return __t$StreamOfT().eventTransformed(stream, dart.fn(sink => {
          if (sink == null) dart.nullFailed(I[40], 46, 28, "sink");
          return new convert._ConverterStreamEventSink.new(this, sink);
        }, T$.EventSinkTo_ConverterStreamEventSink()));
      }
      cast(RS, RT) {
        return convert.Converter.castFrom(S, T, RS, RT, this);
      }
    }
    (Converter.new = function() {
      this.$ti = this.$ti || __t$ConverterOfS$T();
      ;
    }).prototype = Converter.prototype;
    dart.addRtiResources(Converter, ["convert|Converter", "async|StreamTransformerBase", "async|StreamTransformer"]);
    dart.setMethodSignature(Converter, () => dart.global.Object.setPrototypeOf({
      fuse: S[_eval]("convert|Converter<0,0^>(core|Object?)<core|Object?>"),
      startChunkedConversion: __t$ObjectNToSinkOfS(),
      bind: __t$ObjectNToStreamOfT(),
      cast: T$.VoidToConverterOfRS$RT()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(Converter))));
    dart.setMethodsDefaultTypeArgSignature(Converter, () => dart.global.Object.setPrototypeOf({
      fuse: [T$.dynamic()],
      cast: [T$.dynamic(), T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(Converter))));
    dart.setStaticMethodSignature(Converter, () => ['castFrom']);
    dart.setLibraryUri(Converter, I[41]);
    return Converter;
  });
  convert.Converter = convert.Converter$();
  _internal.CastConverter$ = dart.generic((SS, ST, TS, TT) => {
    var __t$CastConverterOfSS$ST$TS$TT = () => (__t$CastConverterOfSS$ST$TS$TT = dart.constFn(SS[_eval]("@<0>")[_bind](ST)[_bind](TS)[_bind](TT)[_eval]("_internal|CastConverter<1,2,3,4>")))();
    var __t$ConverterOfSS$ST = () => (__t$ConverterOfSS$ST = dart.constFn(SS[_eval]("@<0>")[_bind](ST)[_eval]("convert|Converter<1,2>")))();
    var __t$StreamOfTS = () => (__t$StreamOfTS = dart.constFn(TS[_eval]("async|Stream<0>")))();
    var __t$ObjectNToTT = () => (__t$ObjectNToTT = dart.constFn(TT[_eval]("0(core|Object?)")))();
    var __t$ConverterOfTS$TT = () => (__t$ConverterOfTS$TT = dart.constFn(convert.Converter$(TS, TT)))();
    class CastConverter extends __t$ConverterOfTS$TT() {
      static ['_#new#tearOff'](SS, ST, TS, TT, _source) {
        if (_source == null) dart.nullFailed(I[37], 114, 22, "_source");
        return new (_internal.CastConverter$(SS, ST, TS, TT)).new(_source);
      }
      convert(input) {
        TS[_as](input);
        return TT[_as](this[_source$].convert(SS[_as](input)));
      }
      bind(stream) {
        __t$StreamOfTS()[_as](stream);
        if (stream == null) dart.nullFailed(I[37], 120, 30, "stream");
        return this[_source$].bind(stream.cast(SS)).cast(TT);
      }
      cast(RS, RT) {
        return new (_internal.CastConverter$(SS, ST, RS, RT)).new(this[_source$]);
      }
    }
    (CastConverter.new = function(_source) {
      if (_source == null) dart.nullFailed(I[37], 114, 22, "_source");
      this[_source$] = _source;
      this.$ti = this.$ti || __t$CastConverterOfSS$ST$TS$TT();
      dart.global.Object.getPrototypeOf(CastConverter).new.call(this);
      ;
    }).prototype = CastConverter.prototype;
    dart.addRtiResources(CastConverter, ["_internal|CastConverter"]);
    dart.setMethodSignature(CastConverter, () => dart.global.Object.setPrototypeOf({convert: __t$ObjectNToTT()}, dart.getMethods(dart.global.Object.getPrototypeOf(CastConverter))));
    dart.setLibraryUri(CastConverter, I[36]);
    dart.setFieldSignature(CastConverter, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$ConverterOfSS$ST(), isConst: false, isFinal: true, libraryUri: I[41]}}, dart.getFields(dart.global.Object.getPrototypeOf(CastConverter))));
    return CastConverter;
  });
  _internal.CastConverter = _internal.CastConverter$();
  _internal.BytesBuilder = class BytesBuilder extends core.Object {
    static new(opts) {
      let copy = opts && 'copy' in opts ? opts.copy : true;
      if (copy == null) dart.nullFailed(I[42], 30, 30, "copy");
      return dart.test(copy) ? new _internal._CopyingBytesBuilder.new() : new _internal._BytesBuilder.new();
    }
    static ['_#new#tearOff'](opts) {
      let copy = opts && 'copy' in opts ? opts.copy : true;
      if (copy == null) dart.nullFailed(I[42], 30, 30, "copy");
      return _internal.BytesBuilder.new({copy: copy});
    }
  };
  (_internal.BytesBuilder[dart.mixinNew] = function() {
  }).prototype = _internal.BytesBuilder.prototype;
  dart.addRtiResources(_internal.BytesBuilder, ["_internal|BytesBuilder"]);
  dart.setStaticMethodSignature(_internal.BytesBuilder, () => ['new']);
  dart.setLibraryUri(_internal.BytesBuilder, I[36]);
  var _length$ = dart.privateName(_internal, "_length");
  var _buffer = dart.privateName(_internal, "_buffer");
  var _grow = dart.privateName(_internal, "_grow");
  var _clear = dart.privateName(_internal, "_clear");
  _internal._CopyingBytesBuilder = class _CopyingBytesBuilder extends core.Object {
    static ['_#new#tearOff']() {
      return new _internal._CopyingBytesBuilder.new();
    }
    add(bytes) {
      if (bytes == null) dart.nullFailed(I[42], 89, 22, "bytes");
      let byteCount = bytes[$length];
      if (byteCount === 0) return;
      let required = dart.notNull(this[_length$]) + dart.notNull(byteCount);
      if (dart.notNull(this[_buffer][$length]) < required) {
        this[_grow](required);
      }
      if (!(dart.notNull(this[_buffer][$length]) >= required)) dart.assertFailed(null, I[42], 96, 12, "_buffer.length >= required");
      if (T$.Uint8List()[_is](bytes)) {
        this[_buffer][$setRange](this[_length$], required, bytes);
      } else {
        for (let i = 0; i < dart.notNull(byteCount); i = i + 1) {
          this[_buffer][$_set](dart.notNull(this[_length$]) + i, bytes[$_get](i));
        }
      }
      this[_length$] = required;
    }
    addByte(byte) {
      if (byte == null) dart.nullFailed(I[42], 107, 20, "byte");
      if (this[_buffer][$length] == this[_length$]) {
        this[_grow](this[_length$]);
      }
      if (!(dart.notNull(this[_buffer][$length]) > dart.notNull(this[_length$]))) dart.assertFailed(null, I[42], 113, 12, "_buffer.length > _length");
      this[_buffer][$_set](this[_length$], byte);
      this[_length$] = dart.notNull(this[_length$]) + 1;
    }
    [_grow](required) {
      if (required == null) dart.nullFailed(I[42], 118, 18, "required");
      let newSize = dart.notNull(required) * 2;
      if (dart.notNull(newSize) < 1024) {
        newSize = 1024;
      } else {
        newSize = _internal._CopyingBytesBuilder._pow2roundup(newSize);
      }
      let newBuffer = _native_typed_data.NativeUint8List.new(newSize);
      newBuffer[$setRange](0, this[_buffer][$length], this[_buffer]);
      this[_buffer] = newBuffer;
    }
    takeBytes() {
      if (this[_length$] === 0) return _internal._CopyingBytesBuilder._emptyList;
      let buffer = typed_data.Uint8List.view(this[_buffer][$buffer], this[_buffer][$offsetInBytes], this[_length$]);
      this[_clear]();
      return buffer;
    }
    toBytes() {
      if (this[_length$] === 0) return _internal._CopyingBytesBuilder._emptyList;
      return _native_typed_data.NativeUint8List.fromList(typed_data.Uint8List.view(this[_buffer][$buffer], this[_buffer][$offsetInBytes], this[_length$]));
    }
    get length() {
      return this[_length$];
    }
    get isEmpty() {
      return this[_length$] === 0;
    }
    get isNotEmpty() {
      return this[_length$] !== 0;
    }
    clear() {
      this[_clear]();
    }
    [_clear]() {
      this[_length$] = 0;
      this[_buffer] = _internal._CopyingBytesBuilder._emptyList;
    }
    static _pow2roundup(x) {
      if (x == null) dart.nullFailed(I[42], 161, 31, "x");
      if (!(dart.notNull(x) > 0)) dart.assertFailed(null, I[42], 162, 12, "x > 0");
      x = dart.notNull(x) - 1;
      x = (dart.notNull(x) | x[$rightShift](1)) >>> 0;
      x = (dart.notNull(x) | x[$rightShift](2)) >>> 0;
      x = (dart.notNull(x) | x[$rightShift](4)) >>> 0;
      x = (dart.notNull(x) | x[$rightShift](8)) >>> 0;
      x = (dart.notNull(x) | x[$rightShift](16)) >>> 0;
      return dart.notNull(x) + 1;
    }
  };
  (_internal._CopyingBytesBuilder.new = function() {
    this[_length$] = 0;
    this[_buffer] = _internal._CopyingBytesBuilder._emptyList;
    ;
  }).prototype = _internal._CopyingBytesBuilder.prototype;
  dart.addRtiResources(_internal._CopyingBytesBuilder, ["_internal|_CopyingBytesBuilder", "_internal|BytesBuilder"]);
  dart.setMethodSignature(_internal._CopyingBytesBuilder, () => dart.global.Object.setPrototypeOf({
    add: T$.ListOfintTovoid(),
    addByte: T$.intTovoid(),
    [_grow]: T$.intTovoid(),
    takeBytes: T$.VoidToUint8List(),
    toBytes: T$.VoidToUint8List(),
    clear: T$.VoidTovoid(),
    [_clear]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_internal._CopyingBytesBuilder))));
  dart.setStaticMethodSignature(_internal._CopyingBytesBuilder, () => ['_pow2roundup']);
  dart.setGetterSignature(_internal._CopyingBytesBuilder, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    isEmpty: T$.bool(),
    isNotEmpty: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_internal._CopyingBytesBuilder))));
  dart.setLibraryUri(_internal._CopyingBytesBuilder, I[36]);
  dart.setFieldSignature(_internal._CopyingBytesBuilder, () => dart.global.Object.setPrototypeOf({
    [_length$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_buffer]: {type: T$.Uint8List(), isConst: false, isFinal: false, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_internal._CopyingBytesBuilder))));
  dart.setStaticFieldSignature(_internal._CopyingBytesBuilder, () => ['_initSize', '_emptyList']);
  dart.defineLazy(_internal._CopyingBytesBuilder, {
    /*_internal._CopyingBytesBuilder._initSize*/get _initSize() {
      return 1024;
    },
    /*_internal._CopyingBytesBuilder._emptyList*/get _emptyList() {
      return _native_typed_data.NativeUint8List.new(0);
    }
  }, false);
  var _chunks = dart.privateName(_internal, "_chunks");
  _internal._BytesBuilder = class _BytesBuilder extends core.Object {
    add(bytes) {
      if (bytes == null) dart.nullFailed(I[42], 181, 22, "bytes");
      let typedBytes = null;
      if (T$.Uint8List()[_is](bytes)) {
        typedBytes = bytes;
      } else {
        typedBytes = _native_typed_data.NativeUint8List.fromList(bytes);
      }
      this[_chunks][$add](typedBytes);
      this[_length$] = dart.notNull(this[_length$]) + dart.notNull(typedBytes[$length]);
    }
    addByte(byte) {
      let t$3661;
      if (byte == null) dart.nullFailed(I[42], 192, 20, "byte");
      this[_chunks][$add]((t$3661 = _native_typed_data.NativeUint8List.new(1), (() => {
        t$3661[$_set](0, byte);
        return t$3661;
      })()));
      this[_length$] = dart.notNull(this[_length$]) + 1;
    }
    takeBytes() {
      if (this[_length$] === 0) return _internal._CopyingBytesBuilder._emptyList;
      if (this[_chunks][$length] === 1) {
        let buffer = this[_chunks][$_get](0);
        this[_clear]();
        return buffer;
      }
      let buffer = _native_typed_data.NativeUint8List.new(this[_length$]);
      let offset = 0;
      for (let chunk of this[_chunks]) {
        buffer[$setRange](offset, offset + dart.notNull(chunk[$length]), chunk);
        offset = offset + dart.notNull(chunk[$length]);
      }
      this[_clear]();
      return buffer;
    }
    toBytes() {
      if (this[_length$] === 0) return _internal._CopyingBytesBuilder._emptyList;
      let buffer = _native_typed_data.NativeUint8List.new(this[_length$]);
      let offset = 0;
      for (let chunk of this[_chunks]) {
        buffer[$setRange](offset, offset + dart.notNull(chunk[$length]), chunk);
        offset = offset + dart.notNull(chunk[$length]);
      }
      return buffer;
    }
    get length() {
      return this[_length$];
    }
    get isEmpty() {
      return this[_length$] === 0;
    }
    get isNotEmpty() {
      return this[_length$] !== 0;
    }
    clear() {
      this[_clear]();
    }
    [_clear]() {
      this[_length$] = 0;
      this[_chunks][$clear]();
    }
    static ['_#new#tearOff']() {
      return new _internal._BytesBuilder.new();
    }
  };
  (_internal._BytesBuilder.new = function() {
    this[_length$] = 0;
    this[_chunks] = G.JSArrayOfUint8List().of([]);
    ;
  }).prototype = _internal._BytesBuilder.prototype;
  dart.addRtiResources(_internal._BytesBuilder, ["_internal|_BytesBuilder", "_internal|BytesBuilder"]);
  dart.setMethodSignature(_internal._BytesBuilder, () => dart.global.Object.setPrototypeOf({
    add: T$.ListOfintTovoid(),
    addByte: T$.intTovoid(),
    takeBytes: T$.VoidToUint8List(),
    toBytes: T$.VoidToUint8List(),
    clear: T$.VoidTovoid(),
    [_clear]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_internal._BytesBuilder))));
  dart.setGetterSignature(_internal._BytesBuilder, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    isEmpty: T$.bool(),
    isNotEmpty: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_internal._BytesBuilder))));
  dart.setLibraryUri(_internal._BytesBuilder, I[36]);
  dart.setFieldSignature(_internal._BytesBuilder, () => dart.global.Object.setPrototypeOf({
    [_length$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_chunks]: {type: T$.ListOfUint8List(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_internal._BytesBuilder))));
  core.Iterable$ = dart.generic(E => {
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$EfficientLengthIterableOfE = () => (__t$EfficientLengthIterableOfE = dart.constFn(E[_eval]("_internal|EfficientLengthIterable<0>")))();
    var __t$EAndEToE = () => (__t$EAndEToE = dart.constFn(E[_eval]("0(0,0)")))();
    var __t$VoidToNE = () => (__t$VoidToNE = dart.constFn(E[_eval]("0()?")))();
    var __t$ObjectNToIterableOfE = () => (__t$ObjectNToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|Object?)")))();
    var __t$FnToIterableOfT = () => (__t$FnToIterableOfT = dart.constFn(E[_eval]("core|Iterable<0^>(0^(0))<core|Object?>")))();
    var __t$FnToIterableOfE = () => (__t$FnToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|bool(0))")))();
    var __t$FnToIterableOfT$ = () => (__t$FnToIterableOfT$ = dart.constFn(E[_eval]("core|Iterable<0^>(core|Iterable<0^>(0))<core|Object?>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~(~(0))")))();
    var __t$ObjectNToE = () => (__t$ObjectNToE = dart.constFn(E[_eval]("0(core|Object?)")))();
    var __t$TAndFnToT = () => (__t$TAndFnToT = dart.constFn(E[_eval]("0^(0^,0^(0^,0))<core|Object?>")))();
    var __t$FnTobool = () => (__t$FnTobool = dart.constFn(E[_eval]("core|bool(core|bool(0))")))();
    var __t$__ToListOfE = () => (__t$__ToListOfE = dart.constFn(E[_eval]("core|List<0>({growable:core|bool})")))();
    var __t$VoidToSetOfE = () => (__t$VoidToSetOfE = dart.constFn(E[_eval]("core|Set<0>()")))();
    var __t$intToIterableOfE = () => (__t$intToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|int)")))();
    var __t$Fn__ToE = () => (__t$Fn__ToE = dart.constFn(E[_eval]("0(core|bool(0){orElse:core|Object?})")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$FollowedByIterableOfE = () => (__t$FollowedByIterableOfE = dart.constFn(_internal.FollowedByIterable$(E)))();
    var __t$WhereIterableOfE = () => (__t$WhereIterableOfE = dart.constFn(_internal.WhereIterable$(E)))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(core.List$(E)))();
    var __t$LinkedHashSetOfE = () => (__t$LinkedHashSetOfE = dart.constFn(collection.LinkedHashSet$(E)))();
    var __t$TakeIterableOfE = () => (__t$TakeIterableOfE = dart.constFn(_internal.TakeIterable$(E)))();
    var __t$TakeWhileIterableOfE = () => (__t$TakeWhileIterableOfE = dart.constFn(_internal.TakeWhileIterable$(E)))();
    var __t$SkipIterableOfE = () => (__t$SkipIterableOfE = dart.constFn(_internal.SkipIterable$(E)))();
    var __t$SkipWhileIterableOfE = () => (__t$SkipWhileIterableOfE = dart.constFn(_internal.SkipWhileIterable$(E)))();
    class Iterable extends core.Object {
      static generate(count, generator = null) {
        if (count == null) dart.nullFailed(I[45], 112, 33, "count");
        if (dart.notNull(count) <= 0) return new (_internal.EmptyIterable$(E)).new();
        if (generator == null) {
          let id = C[53] || CT.C53;
          if (!E[_eval]("0(core|int)")[_is](id)) {
            dart.throw(new core.ArgumentError.new("Generator must be supplied or element type must allow integers", "generator"));
          }
          generator = id;
        }
        return new (core._GeneratorIterable$(E)).new(count, generator);
      }
      static ['_#generate#tearOff'](E, count, generator = null) {
        if (count == null) dart.nullFailed(I[45], 112, 33, "count");
        return core.Iterable$(E).generate(count, generator);
      }
      static ['_#empty#tearOff'](E) {
        return new (_internal.EmptyIterable$(E)).new();
      }
      static castFrom(S, T, source) {
        if (source == null) dart.nullFailed(I[45], 141, 49, "source");
        return _internal.CastIterable$(S, T).new(source);
      }
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
      cast(R) {
        return _internal.CastIterable$(E, R).new(this);
      }
      followedBy(other) {
        __t$IterableOfE()[_as](other);
        if (other == null) dart.nullFailed(I[45], 193, 38, "other");
        let self = this;
        if (__t$EfficientLengthIterableOfE()[_is](self)) {
          return __t$FollowedByIterableOfE().firstEfficient(self, other);
        }
        return new (__t$FollowedByIterableOfE()).new(this, other);
      }
      map(T, toElement) {
        if (toElement == null) dart.nullFailed(I[45], 238, 24, "toElement");
        return _internal.MappedIterable$(E, T).new(this, toElement);
      }
      where(test) {
        if (test == null) dart.nullFailed(I[45], 260, 26, "test");
        return new (__t$WhereIterableOfE()).new(this, test);
      }
      whereType(T) {
        return new (_internal.WhereTypeIterable$(T)).new(this);
      }
      expand(T, toElements) {
        if (toElements == null) dart.nullFailed(I[45], 301, 37, "toElements");
        return new (_internal.ExpandIterable$(E, T)).new(this, toElements);
      }
      contains(element) {
        for (let e of this) {
          if (dart.equals(e, element)) return true;
        }
        return false;
      }
      forEach(action) {
        if (action == null) dart.nullFailed(I[45], 346, 21, "action");
        for (let element of this)
          action(element);
      }
      reduce(combine) {
        __t$EAndEToE()[_as](combine);
        if (combine == null) dart.nullFailed(I[45], 373, 14, "combine");
        let iterator = this[$iterator];
        if (!dart.test(iterator.moveNext())) {
          dart.throw(_internal.IterableElementError.noElement());
        }
        let value = iterator.current;
        while (dart.test(iterator.moveNext())) {
          value = combine(value, iterator.current);
        }
        return value;
      }
      fold(T, initialValue, combine) {
        if (combine == null) dart.nullFailed(I[45], 406, 31, "combine");
        let value = initialValue;
        for (let element of this)
          value = combine(value, element);
        return value;
      }
      every(test) {
        if (test == null) dart.nullFailed(I[45], 425, 19, "test");
        for (let element of this) {
          if (!dart.test(test(element))) return false;
        }
        return true;
      }
      join(separator = "") {
        let t$3661;
        if (separator == null) dart.nullFailed(I[45], 445, 23, "separator");
        let iterator = this[$iterator];
        if (!dart.test(iterator.moveNext())) return "";
        let first = dart.toString(iterator.current);
        if (!dart.test(iterator.moveNext())) return first;
        let buffer = new core.StringBuffer.new(first);
        if (separator == null || separator[$isEmpty]) {
          do {
            buffer.write(dart.toString(iterator.current));
          } while (dart.test(iterator.moveNext()));
        } else {
          do {
            t$3661 = buffer;
            (() => {
              t$3661.write(separator);
              t$3661.write(dart.toString(iterator.current));
              return t$3661;
            })();
          } while (dart.test(iterator.moveNext()));
        }
        return dart.toString(buffer);
      }
      any(test) {
        if (test == null) dart.nullFailed(I[45], 478, 17, "test");
        for (let element of this) {
          if (dart.test(test(element))) return true;
        }
        return false;
      }
      toList(opts) {
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[45], 497, 24, "growable");
        return __t$ListOfE().of(this, {growable: growable});
      }
      toSet() {
        return __t$LinkedHashSetOfE().of(this);
      }
      get length() {
        if (!!T$.EfficientLengthIterable()[_is](this)) dart.assertFailed(null, I[45], 522, 12, "this is! EfficientLengthIterable");
        let count = 0;
        let it = this[$iterator];
        while (dart.test(it.moveNext())) {
          count = count + 1;
        }
        return count;
      }
      get isEmpty() {
        return !dart.test(this[$iterator].moveNext());
      }
      get isNotEmpty() {
        return !dart.test(this[$isEmpty]);
      }
      take(count) {
        if (count == null) dart.nullFailed(I[45], 571, 24, "count");
        return __t$TakeIterableOfE().new(this, count);
      }
      takeWhile(test) {
        if (test == null) dart.nullFailed(I[45], 590, 30, "test");
        return new (__t$TakeWhileIterableOfE()).new(this, test);
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[45], 613, 24, "count");
        return __t$SkipIterableOfE().new(this, count);
      }
      skipWhile(test) {
        if (test == null) dart.nullFailed(I[45], 634, 30, "test");
        return new (__t$SkipWhileIterableOfE()).new(this, test);
      }
      get first() {
        let it = this[$iterator];
        if (!dart.test(it.moveNext())) {
          dart.throw(_internal.IterableElementError.noElement());
        }
        return it.current;
      }
      get last() {
        let it = this[$iterator];
        if (!dart.test(it.moveNext())) {
          dart.throw(_internal.IterableElementError.noElement());
        }
        let result = null;
        do {
          result = it.current;
        } while (dart.test(it.moveNext()));
        return result;
      }
      get single() {
        let it = this[$iterator];
        if (!dart.test(it.moveNext())) dart.throw(_internal.IterableElementError.noElement());
        let result = it.current;
        if (dart.test(it.moveNext())) dart.throw(_internal.IterableElementError.tooMany());
        return result;
      }
      firstWhere(test, opts) {
        if (test == null) dart.nullFailed(I[45], 698, 21, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        for (let element of this) {
          if (dart.test(test(element))) return element;
        }
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      lastWhere(test, opts) {
        if (test == null) dart.nullFailed(I[45], 727, 20, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let iterator = this[$iterator];
        let result = null;
        do {
          if (!dart.test(iterator.moveNext())) {
            if (orElse != null) return orElse();
            dart.throw(_internal.IterableElementError.noElement());
          }
          result = iterator.current;
        } while (!dart.test(test(result)));
        while (dart.test(iterator.moveNext())) {
          let current = iterator.current;
          if (dart.test(test(current))) result = current;
        }
        return result;
      }
      singleWhere(test, opts) {
        if (test == null) dart.nullFailed(I[45], 769, 22, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let iterator = this[$iterator];
        let result = null;
        do {
          if (!dart.test(iterator.moveNext())) {
            if (orElse != null) return orElse();
            dart.throw(_internal.IterableElementError.noElement());
          }
          result = iterator.current;
        } while (!dart.test(test(result)));
        while (dart.test(iterator.moveNext())) {
          if (dart.test(test(iterator.current))) dart.throw(_internal.IterableElementError.tooMany());
        }
        return result;
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[45], 800, 19, "index");
        core.RangeError.checkNotNegative(index, "index");
        let iterator = this[$iterator];
        let skipCount = index;
        while (dart.test(iterator.moveNext())) {
          if (skipCount === 0) return iterator.current;
          skipCount = dart.notNull(skipCount) - 1;
        }
        dart.throw(new core.IndexError.withLength(index, dart.notNull(index) - dart.notNull(skipCount), {indexable: this, name: "index"}));
      }
      toString() {
        return core.Iterable.iterableToShortString(this, "(", ")");
      }
      static iterableToShortString(iterable, leftDelimiter = "(", rightDelimiter = ")") {
        let t$3661;
        if (iterable == null) dart.nullFailed(I[45], 834, 48, "iterable");
        if (leftDelimiter == null) dart.nullFailed(I[45], 835, 15, "leftDelimiter");
        if (rightDelimiter == null) dart.nullFailed(I[45], 835, 43, "rightDelimiter");
        if (dart.test(_internal.isToStringVisiting(iterable))) {
          if (leftDelimiter === "(" && rightDelimiter === ")") {
            return "(...)";
          }
          return dart.str(leftDelimiter) + "..." + dart.str(rightDelimiter);
        }
        let parts = G.JSArrayOfString().of([]);
        _internal.toStringVisiting[$add](iterable);
        try {
          core._iterablePartsToStrings(iterable, parts);
        } finally {
          if (!core.identical(_internal.toStringVisiting[$last], iterable)) dart.assertFailed(null, I[45], 848, 14, "identical(toStringVisiting.last, iterable)");
          _internal.toStringVisiting[$removeLast]();
        }
        return dart.toString((t$3661 = new core.StringBuffer.new(leftDelimiter), (() => {
          t$3661.writeAll(parts, ", ");
          t$3661.write(rightDelimiter);
          return t$3661;
        })()));
      }
      static iterableToFullString(iterable, leftDelimiter = "(", rightDelimiter = ")") {
        if (iterable == null) dart.nullFailed(I[45], 867, 47, "iterable");
        if (leftDelimiter == null) dart.nullFailed(I[45], 868, 15, "leftDelimiter");
        if (rightDelimiter == null) dart.nullFailed(I[45], 868, 43, "rightDelimiter");
        if (dart.test(_internal.isToStringVisiting(iterable))) {
          return dart.str(leftDelimiter) + "..." + dart.str(rightDelimiter);
        }
        let buffer = new core.StringBuffer.new(leftDelimiter);
        _internal.toStringVisiting[$add](iterable);
        try {
          buffer.writeAll(iterable, ", ");
        } finally {
          if (!core.identical(_internal.toStringVisiting[$last], iterable)) dart.assertFailed(null, I[45], 877, 14, "identical(toStringVisiting.last, iterable)");
          _internal.toStringVisiting[$removeLast]();
        }
        buffer.write(rightDelimiter);
        return dart.toString(buffer);
      }
    }
    (Iterable.new = function() {
      this.$ti = this.$ti || __t$IterableOfE();
      ;
    }).prototype = Iterable.prototype;
    dart.addRtiResources(Iterable, ["core|Iterable"]);
    dart.setMethodSignature(Iterable, () => dart.global.Object.setPrototypeOf({
      cast: T$.VoidToIterableOfT(),
      [$cast]: T$.VoidToIterableOfT(),
      followedBy: __t$ObjectNToIterableOfE(),
      [$followedBy]: __t$ObjectNToIterableOfE(),
      map: __t$FnToIterableOfT(),
      [$map]: __t$FnToIterableOfT(),
      where: __t$FnToIterableOfE(),
      [$where]: __t$FnToIterableOfE(),
      whereType: T$.VoidToIterableOfT(),
      [$whereType]: T$.VoidToIterableOfT(),
      expand: __t$FnToIterableOfT$(),
      [$expand]: __t$FnToIterableOfT$(),
      contains: T$.ObjectNTobool(),
      [$contains]: T$.ObjectNTobool(),
      forEach: __t$FnTovoid(),
      [$forEach]: __t$FnTovoid(),
      reduce: __t$ObjectNToE(),
      [$reduce]: __t$ObjectNToE(),
      fold: __t$TAndFnToT(),
      [$fold]: __t$TAndFnToT(),
      every: __t$FnTobool(),
      [$every]: __t$FnTobool(),
      join: T$.StringToString$1(),
      [$join]: T$.StringToString$1(),
      any: __t$FnTobool(),
      [$any]: __t$FnTobool(),
      toList: __t$__ToListOfE(),
      [$toList]: __t$__ToListOfE(),
      toSet: __t$VoidToSetOfE(),
      [$toSet]: __t$VoidToSetOfE(),
      take: __t$intToIterableOfE(),
      [$take]: __t$intToIterableOfE(),
      takeWhile: __t$FnToIterableOfE(),
      [$takeWhile]: __t$FnToIterableOfE(),
      skip: __t$intToIterableOfE(),
      [$skip]: __t$intToIterableOfE(),
      skipWhile: __t$FnToIterableOfE(),
      [$skipWhile]: __t$FnToIterableOfE(),
      firstWhere: __t$Fn__ToE(),
      [$firstWhere]: __t$Fn__ToE(),
      lastWhere: __t$Fn__ToE(),
      [$lastWhere]: __t$Fn__ToE(),
      singleWhere: __t$Fn__ToE(),
      [$singleWhere]: __t$Fn__ToE(),
      elementAt: __t$intToE(),
      [$elementAt]: __t$intToE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(Iterable))));
    dart.setMethodsDefaultTypeArgSignature(Iterable, () => dart.global.Object.setPrototypeOf({
      cast: [T$.dynamic()],
      [$cast]: [T$.dynamic()],
      map: [T$.dynamic()],
      [$map]: [T$.dynamic()],
      whereType: [T$.dynamic()],
      [$whereType]: [T$.dynamic()],
      expand: [T$.dynamic()],
      [$expand]: [T$.dynamic()],
      fold: [T$.dynamic()],
      [$fold]: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(Iterable))));
    dart.setStaticMethodSignature(Iterable, () => ['generate', 'empty', 'castFrom', 'iterableToShortString', 'iterableToFullString']);
    dart.setGetterSignature(Iterable, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int(),
      isEmpty: T$.bool(),
      [$isEmpty]: T$.bool(),
      isNotEmpty: T$.bool(),
      [$isNotEmpty]: T$.bool(),
      first: E,
      [$first]: E,
      last: E,
      [$last]: E,
      single: E,
      [$single]: E
    }, dart.getGetters(dart.global.Object.getPrototypeOf(Iterable))));
    dart.setLibraryUri(Iterable, I[11]);
    dart.defineExtensionMethods(Iterable, [
      'cast',
      'followedBy',
      'map',
      'where',
      'whereType',
      'expand',
      'contains',
      'forEach',
      'reduce',
      'fold',
      'every',
      'join',
      'any',
      'toList',
      'toSet',
      'take',
      'takeWhile',
      'skip',
      'skipWhile',
      'firstWhere',
      'lastWhere',
      'singleWhere',
      'elementAt',
      'toString'
    ]);
    dart.defineExtensionAccessors(Iterable, [
      'length',
      'isEmpty',
      'isNotEmpty',
      'first',
      'last',
      'single'
    ]);
    return Iterable;
  });
  core.Iterable = core.Iterable$();
  _internal._CastIterableBase$ = dart.generic((S, T) => {
    var __t$_CastIterableBaseOfS$T = () => (__t$_CastIterableBaseOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|_CastIterableBase<1,2>")))();
    var __t$STobool = () => (__t$STobool = dart.constFn(S[_eval]("core|bool(0)")))();
    var __t$VoidToS = () => (__t$VoidToS = dart.constFn(S[_eval]("0()")))();
    var __t$VoidToNT = () => (__t$VoidToNT = dart.constFn(T[_eval]("0()?")))();
    var __t$IteratorOfT = () => (__t$IteratorOfT = dart.constFn(T[_eval]("core|Iterator<0>")))();
    var __t$CastIteratorOfS$T = () => (__t$CastIteratorOfS$T = dart.constFn(_internal.CastIterator$(S, T)))();
    var __t$CastIterableOfS$T = () => (__t$CastIterableOfS$T = dart.constFn(_internal.CastIterable$(S, T)))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(core.Iterable$(T)))();
    class _CastIterableBase extends __t$IterableOfT() {
      get iterator() {
        return new (__t$CastIteratorOfS$T()).new(this[_source$][$iterator]);
      }
      get length() {
        return this[_source$][$length];
      }
      get isEmpty() {
        return this[_source$][$isEmpty];
      }
      get isNotEmpty() {
        return this[_source$][$isNotEmpty];
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[44], 39, 24, "count");
        return __t$CastIterableOfS$T().new(this[_source$][$skip](count));
      }
      take(count) {
        if (count == null) dart.nullFailed(I[44], 40, 24, "count");
        return __t$CastIterableOfS$T().new(this[_source$][$take](count));
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[44], 42, 19, "index");
        return T[_as](this[_source$][$elementAt](index));
      }
      get first() {
        return T[_as](this[_source$][$first]);
      }
      get last() {
        return T[_as](this[_source$][$last]);
      }
      get single() {
        return T[_as](this[_source$][$single]);
      }
      contains(other) {
        return this[_source$][$contains](other);
      }
      lastWhere(test, opts) {
        if (test == null) dart.nullFailed(I[44], 51, 20, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNT()[_as](orElse);
        return T[_as](this[_source$][$lastWhere](dart.fn(element => test(T[_as](element)), __t$STobool()), {orElse: orElse == null ? null : dart.fn(() => S[_as](orElse()), __t$VoidToS())}));
      }
      toString() {
        return dart.toString(this[_source$]);
      }
    }
    (_CastIterableBase.new = function() {
      this.$ti = this.$ti || __t$_CastIterableBaseOfS$T();
      dart.global.Object.getPrototypeOf(_CastIterableBase).new.call(this);
      ;
    }).prototype = _CastIterableBase.prototype;
    dart.addRtiResources(_CastIterableBase, ["_internal|_CastIterableBase"]);
    dart.setGetterSignature(_CastIterableBase, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfT(),
      [$iterator]: __t$IteratorOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_CastIterableBase))));
    dart.setLibraryUri(_CastIterableBase, I[36]);
    dart.defineExtensionMethods(_CastIterableBase, [
      'skip',
      'take',
      'elementAt',
      'contains',
      'lastWhere',
      'toString'
    ]);
    dart.defineExtensionAccessors(_CastIterableBase, [
      'iterator',
      'length',
      'isEmpty',
      'isNotEmpty',
      'first',
      'last',
      'single'
    ]);
    return _CastIterableBase;
  });
  _internal._CastIterableBase = _internal._CastIterableBase$();
  _internal.CastIterator$ = dart.generic((S, T) => {
    var __t$CastIteratorOfS$T = () => (__t$CastIteratorOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|CastIterator<1,2>")))();
    var __t$IteratorOfS = () => (__t$IteratorOfS = dart.constFn(S[_eval]("core|Iterator<0>")))();
    class CastIterator extends core.Object {
      static ['_#new#tearOff'](S, T, _source) {
        if (_source == null) dart.nullFailed(I[44], 60, 21, "_source");
        return new (_internal.CastIterator$(S, T)).new(_source);
      }
      moveNext() {
        return this[_source$].moveNext();
      }
      get current() {
        return T[_as](this[_source$].current);
      }
    }
    (CastIterator.new = function(_source) {
      if (_source == null) dart.nullFailed(I[44], 60, 21, "_source");
      this[_source$] = _source;
      this.$ti = this.$ti || __t$CastIteratorOfS$T();
      ;
    }).prototype = CastIterator.prototype;
    dart.addRtiResources(CastIterator, ["_internal|CastIterator", "core|Iterator"]);
    dart.setMethodSignature(CastIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(CastIterator))));
    dart.setGetterSignature(CastIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(CastIterator))));
    dart.setLibraryUri(CastIterator, I[36]);
    dart.setFieldSignature(CastIterator, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$IteratorOfS(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(CastIterator))));
    return CastIterator;
  });
  _internal.CastIterator = _internal.CastIterator$();
  var _source$0 = dart.privateName(_internal, "CastIterable._source");
  _internal.CastIterable$ = dart.generic((S, T) => {
    var __t$CastIterableOfS$T = () => (__t$CastIterableOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|CastIterable<1,2>")))();
    var __t$IterableOfS = () => (__t$IterableOfS = dart.constFn(S[_eval]("core|Iterable<0>")))();
    var __t$_CastIterableBaseOfS$T = () => (__t$_CastIterableBaseOfS$T = dart.constFn(_internal._CastIterableBase$(S, T)))();
    class CastIterable extends __t$_CastIterableBaseOfS$T() {
      get [_source$]() {
        return this[_source$0];
      }
      set [_source$](value) {
        super[_source$] = value;
      }
      static ['_#_#tearOff'](S, T, _source) {
        if (_source == null) dart.nullFailed(I[44], 68, 23, "_source");
        return new (_internal.CastIterable$(S, T)).__(_source);
      }
      static new(source) {
        if (source == null) dart.nullFailed(I[44], 70, 36, "source");
        if (S[_eval]("_internal|EfficientLengthIterable<0>")[_is](source)) {
          return new (_internal._EfficientLengthCastIterable$(S, T)).new(source);
        }
        return new (_internal.CastIterable$(S, T)).__(source);
      }
      static ['_#new#tearOff'](S, T, source) {
        if (source == null) dart.nullFailed(I[44], 70, 36, "source");
        return _internal.CastIterable$(S, T).new(source);
      }
      cast(R) {
        return _internal.CastIterable$(S, R).new(this[_source$]);
      }
    }
    (CastIterable.__ = function(_source) {
      if (_source == null) dart.nullFailed(I[44], 68, 23, "_source");
      this[_source$0] = _source;
      this.$ti = this.$ti || __t$CastIterableOfS$T();
      dart.global.Object.getPrototypeOf(CastIterable).new.call(this);
      ;
    }).prototype = CastIterable.prototype;
    dart.addRtiResources(CastIterable, ["_internal|CastIterable"]);
    dart.setStaticMethodSignature(CastIterable, () => ['new']);
    dart.setLibraryUri(CastIterable, I[36]);
    dart.setFieldSignature(CastIterable, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$IterableOfS(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(CastIterable))));
    dart.defineExtensionMethods(CastIterable, ['cast']);
    return CastIterable;
  });
  _internal.CastIterable = _internal.CastIterable$();
  _internal._EfficientLengthCastIterable$ = dart.generic((S, T) => {
    var __t$_EfficientLengthCastIterableOfS$T = () => (__t$_EfficientLengthCastIterableOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|_EfficientLengthCastIterable<1,2>")))();
    var __t$CastIterableOfS$T = () => (__t$CastIterableOfS$T = dart.constFn(_internal.CastIterable$(S, T)))();
    class _EfficientLengthCastIterable extends __t$CastIterableOfS$T() {
      static ['_#new#tearOff'](S, T, source) {
        if (source == null) dart.nullFailed(I[44], 82, 59, "source");
        return new (_internal._EfficientLengthCastIterable$(S, T)).new(source);
      }
    }
    (_EfficientLengthCastIterable.new = function(source) {
      if (source == null) dart.nullFailed(I[44], 82, 59, "source");
      this.$ti = this.$ti || __t$_EfficientLengthCastIterableOfS$T();
      dart.global.Object.getPrototypeOf(_EfficientLengthCastIterable).__.call(this, source);
      ;
    }).prototype = _EfficientLengthCastIterable.prototype;
    dart.addRtiResources(_EfficientLengthCastIterable, ["_internal|_EfficientLengthCastIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setLibraryUri(_EfficientLengthCastIterable, I[36]);
    return _EfficientLengthCastIterable;
  });
  _internal._EfficientLengthCastIterable = _internal._EfficientLengthCastIterable$();
  _internal._CastListBase$ = dart.generic((S, T) => {
    var __t$_CastListBaseOfS$T = () => (__t$_CastListBaseOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|_CastListBase<1,2>")))();
    var __t$SAndSToint = () => (__t$SAndSToint = dart.constFn(S[_eval]("core|int(0,0)")))();
    var __t$STobool = () => (__t$STobool = dart.constFn(S[_eval]("core|bool(0)")))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(T[_eval]("core|Iterable<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    var __t$intToT = () => (__t$intToT = dart.constFn(T[_eval]("0(core|int)")))();
    var __t$CastIterableOfT$S = () => (__t$CastIterableOfT$S = dart.constFn(_internal.CastIterable$(T, S)))();
    var __t$CastIterableOfS$T = () => (__t$CastIterableOfS$T = dart.constFn(_internal.CastIterable$(S, T)))();
    var __t$_CastIterableBaseOfS$T = () => (__t$_CastIterableBaseOfS$T = dart.constFn(_internal._CastIterableBase$(S, T)))();
    var __t$ListBaseOfT = () => (__t$ListBaseOfT = dart.constFn(collection.ListBase$(T)))();
    const _CastIterableBase_ListBase$36 = class _CastIterableBase_ListBase extends __t$_CastIterableBaseOfS$T() {};
    (_CastIterableBase_ListBase$36.new = function() {
      __t$ListBaseOfT().new.call(this);
      dart.global.Object.getPrototypeOf(_CastIterableBase_ListBase$36).new.call(this);
    }).prototype = _CastIterableBase_ListBase$36.prototype;
    dart.applyMixin(_CastIterableBase_ListBase$36, __t$ListBaseOfT());
    class _CastListBase extends _CastIterableBase_ListBase$36 {
      _get(index) {
        if (index == null) dart.nullFailed(I[44], 99, 21, "index");
        return T[_as](this[_source$][$_get](index));
      }
      _set(index, value$) {
        let value = value$;
        if (index == null) dart.nullFailed(I[44], 101, 25, "index");
        T[_as](value);
        this[_source$][$_set](index, S[_as](value));
        return value$;
      }
      set length(length) {
        if (length == null) dart.nullFailed(I[44], 105, 23, "length");
        this[_source$][$length] = length;
      }
      get length() {
        return super.length;
      }
      add(value) {
        T[_as](value);
        this[_source$][$add](S[_as](value));
      }
      addAll(values) {
        __t$IterableOfT()[_as](values);
        if (values == null) dart.nullFailed(I[44], 113, 27, "values");
        this[_source$][$addAll](__t$CastIterableOfT$S().new(values));
      }
      sort(compare = null) {
        this[_source$][$sort](compare == null ? null : dart.fn((v1, v2) => compare(T[_as](v1), T[_as](v2)), __t$SAndSToint()));
      }
      shuffle(random = null) {
        this[_source$][$shuffle](random);
      }
      insert(index, element) {
        if (index == null) dart.nullFailed(I[44], 126, 19, "index");
        T[_as](element);
        this[_source$][$insert](index, S[_as](element));
      }
      insertAll(index, elements) {
        if (index == null) dart.nullFailed(I[44], 130, 22, "index");
        __t$IterableOfT()[_as](elements);
        if (elements == null) dart.nullFailed(I[44], 130, 41, "elements");
        this[_source$][$insertAll](index, __t$CastIterableOfT$S().new(elements));
      }
      setAll(index, elements) {
        if (index == null) dart.nullFailed(I[44], 134, 19, "index");
        __t$IterableOfT()[_as](elements);
        if (elements == null) dart.nullFailed(I[44], 134, 38, "elements");
        this[_source$][$setAll](index, __t$CastIterableOfT$S().new(elements));
      }
      remove(value) {
        return this[_source$][$remove](value);
      }
      removeAt(index) {
        if (index == null) dart.nullFailed(I[44], 140, 18, "index");
        return T[_as](this[_source$][$removeAt](index));
      }
      removeLast() {
        return T[_as](this[_source$][$removeLast]());
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[44], 144, 25, "test");
        this[_source$][$removeWhere](dart.fn(element => test(T[_as](element)), __t$STobool()));
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[44], 148, 25, "test");
        this[_source$][$retainWhere](dart.fn(element => test(T[_as](element)), __t$STobool()));
      }
      getRange(start, end) {
        if (start == null) dart.nullFailed(I[44], 152, 28, "start");
        if (end == null) dart.nullFailed(I[44], 152, 39, "end");
        return __t$CastIterableOfS$T().new(this[_source$][$getRange](start, end));
      }
      setRange(start, end, iterable, skipCount = 0) {
        if (start == null) dart.nullFailed(I[44], 155, 21, "start");
        if (end == null) dart.nullFailed(I[44], 155, 32, "end");
        __t$IterableOfT()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[44], 155, 49, "iterable");
        if (skipCount == null) dart.nullFailed(I[44], 155, 64, "skipCount");
        this[_source$][$setRange](start, end, __t$CastIterableOfT$S().new(iterable), skipCount);
      }
      removeRange(start, end) {
        if (start == null) dart.nullFailed(I[44], 159, 24, "start");
        if (end == null) dart.nullFailed(I[44], 159, 35, "end");
        this[_source$][$removeRange](start, end);
      }
      fillRange(start, end, fillValue = null) {
        if (start == null) dart.nullFailed(I[44], 163, 22, "start");
        if (end == null) dart.nullFailed(I[44], 163, 33, "end");
        __t$TN()[_as](fillValue);
        this[_source$][$fillRange](start, end, S[_as](fillValue));
      }
      replaceRange(start, end, replacement) {
        if (start == null) dart.nullFailed(I[44], 167, 25, "start");
        if (end == null) dart.nullFailed(I[44], 167, 36, "end");
        __t$IterableOfT()[_as](replacement);
        if (replacement == null) dart.nullFailed(I[44], 167, 53, "replacement");
        this[_source$][$replaceRange](start, end, __t$CastIterableOfT$S().new(replacement));
      }
    }
    (_CastListBase.new = function() {
      this.$ti = this.$ti || __t$_CastListBaseOfS$T();
      dart.global.Object.getPrototypeOf(_CastListBase).new.call(this);
      ;
    }).prototype = _CastListBase.prototype;
    dart.addRtiResources(_CastListBase, ["_internal|_CastListBase"]);
    dart.setMethodSignature(_CastListBase, () => dart.global.Object.setPrototypeOf({
      _get: __t$intToT(),
      [$_get]: __t$intToT(),
      _set: T$.intAndObjectNTovoid(),
      [$_set]: T$.intAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_CastListBase))));
    dart.setSetterSignature(_CastListBase, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(_CastListBase))));
    dart.setLibraryUri(_CastListBase, I[36]);
    dart.defineExtensionMethods(_CastListBase, [
      '_get',
      '_set',
      'add',
      'addAll',
      'sort',
      'shuffle',
      'insert',
      'insertAll',
      'setAll',
      'remove',
      'removeAt',
      'removeLast',
      'removeWhere',
      'retainWhere',
      'getRange',
      'setRange',
      'removeRange',
      'fillRange',
      'replaceRange'
    ]);
    dart.defineExtensionAccessors(_CastListBase, ['length']);
    return _CastListBase;
  });
  _internal._CastListBase = _internal._CastListBase$();
  var _source$1 = dart.privateName(_internal, "CastList._source");
  _internal.CastList$ = dart.generic((S, T) => {
    var __t$CastListOfS$T = () => (__t$CastListOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|CastList<1,2>")))();
    var __t$ListOfS = () => (__t$ListOfS = dart.constFn(S[_eval]("core|List<0>")))();
    var __t$_CastListBaseOfS$T = () => (__t$_CastListBaseOfS$T = dart.constFn(_internal._CastListBase$(S, T)))();
    class CastList extends __t$_CastListBaseOfS$T() {
      get [_source$]() {
        return this[_source$1];
      }
      set [_source$](value) {
        super[_source$] = value;
      }
      static ['_#new#tearOff'](S, T, _source) {
        if (_source == null) dart.nullFailed(I[44], 174, 17, "_source");
        return new (_internal.CastList$(S, T)).new(_source);
      }
      cast(R) {
        return new (_internal.CastList$(S, R)).new(this[_source$]);
      }
    }
    (CastList.new = function(_source) {
      if (_source == null) dart.nullFailed(I[44], 174, 17, "_source");
      this[_source$1] = _source;
      this.$ti = this.$ti || __t$CastListOfS$T();
      dart.global.Object.getPrototypeOf(CastList).new.call(this);
      ;
    }).prototype = CastList.prototype;
    dart.addRtiResources(CastList, ["_internal|CastList"]);
    dart.setLibraryUri(CastList, I[36]);
    dart.setFieldSignature(CastList, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$ListOfS(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(CastList))));
    dart.defineExtensionMethods(CastList, ['cast']);
    return CastList;
  });
  _internal.CastList = _internal.CastList$();
  var _source$2 = dart.privateName(_internal, "CastSet._source");
  var _emptySet$ = dart.privateName(_internal, "_emptySet");
  var _conditionalAdd = dart.privateName(_internal, "_conditionalAdd");
  var _clone = dart.privateName(_internal, "_clone");
  _internal.CastSet$ = dart.generic((S, T) => {
    var __t$CastSetOfS$T = () => (__t$CastSetOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|CastSet<1,2>")))();
    var __t$STobool = () => (__t$STobool = dart.constFn(S[_eval]("core|bool(0)")))();
    var __t$SetOfS = () => (__t$SetOfS = dart.constFn(S[_eval]("core|Set<0>")))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(T[_eval]("core|Iterable<0>")))();
    var __t$SetOfT = () => (__t$SetOfT = dart.constFn(T[_eval]("core|Set<0>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(T[_eval]("~(core|bool(0))")))();
    var __t$SetOfObjectNToSetOfT = () => (__t$SetOfObjectNToSetOfT = dart.constFn(T[_eval]("core|Set<0>(core|Set<core|Object?>)")))();
    var __t$SetOfObjectNAndboolToSetOfT = () => (__t$SetOfObjectNAndboolToSetOfT = dart.constFn(T[_eval]("core|Set<0>(core|Set<core|Object?>,core|bool)")))();
    var __t$ObjectNToSetOfT = () => (__t$ObjectNToSetOfT = dart.constFn(T[_eval]("core|Set<0>(core|Object?)")))();
    var __t$VoidToSetOfT = () => (__t$VoidToSetOfT = dart.constFn(T[_eval]("core|Set<0>()")))();
    var __t$ObjectNToT = () => (__t$ObjectNToT = dart.constFn(T[_eval]("0(core|Object?)")))();
    var __t$CastIterableOfT$S = () => (__t$CastIterableOfT$S = dart.constFn(_internal.CastIterable$(T, S)))();
    var __t$CastSetOfS$T$ = () => (__t$CastSetOfS$T$ = dart.constFn(_internal.CastSet$(S, T)))();
    var __t$_CastIterableBaseOfS$T = () => (__t$_CastIterableBaseOfS$T = dart.constFn(_internal._CastIterableBase$(S, T)))();
    var __t$_HashSetOfT = () => (__t$_HashSetOfT = dart.constFn(collection._HashSet$(T)))();
    class CastSet extends __t$_CastIterableBaseOfS$T() {
      get [_source$]() {
        return this[_source$2];
      }
      set [_source$](value) {
        super[_source$] = value;
      }
      static ['_#new#tearOff'](S, T, _source, _emptySet) {
        if (_source == null) dart.nullFailed(I[44], 187, 16, "_source");
        return new (_internal.CastSet$(S, T)).new(_source, _emptySet);
      }
      cast(R) {
        return new (_internal.CastSet$(S, R)).new(this[_source$], this[_emptySet$]);
      }
      add(value) {
        T[_as](value);
        return this[_source$].add(S[_as](value));
      }
      addAll(elements) {
        __t$IterableOfT()[_as](elements);
        if (elements == null) dart.nullFailed(I[44], 192, 27, "elements");
        this[_source$].addAll(__t$CastIterableOfT$S().new(elements));
      }
      remove(object) {
        return this[_source$].remove(object);
      }
      removeAll(objects) {
        if (objects == null) dart.nullFailed(I[44], 198, 36, "objects");
        this[_source$].removeAll(objects);
      }
      retainAll(objects) {
        if (objects == null) dart.nullFailed(I[44], 202, 36, "objects");
        this[_source$].retainAll(objects);
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[44], 206, 25, "test");
        this[_source$].removeWhere(dart.fn(element => test(T[_as](element)), __t$STobool()));
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[44], 210, 25, "test");
        this[_source$].retainWhere(dart.fn(element => test(T[_as](element)), __t$STobool()));
      }
      containsAll(objects) {
        if (objects == null) dart.nullFailed(I[44], 214, 38, "objects");
        return this[_source$].containsAll(objects);
      }
      intersection(other) {
        if (other == null) dart.nullFailed(I[44], 216, 36, "other");
        if (this[_emptySet$] != null) return this[_conditionalAdd](other, true);
        return new (__t$CastSetOfS$T$()).new(this[_source$].intersection(other), null);
      }
      difference(other) {
        if (other == null) dart.nullFailed(I[44], 221, 34, "other");
        if (this[_emptySet$] != null) return this[_conditionalAdd](other, false);
        return new (__t$CastSetOfS$T$()).new(this[_source$].difference(other), null);
      }
      [_conditionalAdd](other, otherContains) {
        if (other == null) dart.nullFailed(I[44], 226, 39, "other");
        if (otherContains == null) dart.nullFailed(I[44], 226, 51, "otherContains");
        let emptySet = this[_emptySet$];
        let result = emptySet == null ? new (__t$_HashSetOfT()).new() : emptySet(T);
        for (let element of this[_source$]) {
          let castElement = T[_as](element);
          if (otherContains == other.contains(castElement)) result.add(castElement);
        }
        return result;
      }
      union(other) {
        let t$3661;
        __t$SetOfT()[_as](other);
        if (other == null) dart.nullFailed(I[44], 236, 23, "other");
        t$3661 = this[_clone]();
        return (() => {
          t$3661.addAll(other);
          return t$3661;
        })();
      }
      clear() {
        this[_source$].clear();
      }
      [_clone]() {
        let emptySet = this[_emptySet$];
        let result = emptySet == null ? new (__t$_HashSetOfT()).new() : emptySet(T);
        result.addAll(this);
        return result;
      }
      toSet() {
        return this[_clone]();
      }
      lookup(key) {
        return T[_as](this[_source$].lookup(key));
      }
    }
    (CastSet.new = function(_source, _emptySet) {
      if (_source == null) dart.nullFailed(I[44], 187, 16, "_source");
      this[_source$2] = _source;
      this[_emptySet$] = _emptySet;
      this.$ti = this.$ti || __t$CastSetOfS$T();
      dart.global.Object.getPrototypeOf(CastSet).new.call(this);
      ;
    }).prototype = CastSet.prototype;
    dart.addRtiResources(CastSet, ["_internal|CastSet", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(CastSet, () => dart.global.Object.setPrototypeOf({
      cast: T$0.VoidToSetOfR(),
      [$cast]: T$0.VoidToSetOfR(),
      add: T$.ObjectNTobool(),
      addAll: T$.ObjectNTovoid(),
      remove: T$.ObjectNTobool(),
      removeAll: T$0.IterableOfObjectNTovoid(),
      retainAll: T$0.IterableOfObjectNTovoid(),
      removeWhere: __t$FnTovoid(),
      retainWhere: __t$FnTovoid(),
      containsAll: T$0.IterableOfObjectNTobool(),
      intersection: __t$SetOfObjectNToSetOfT(),
      difference: __t$SetOfObjectNToSetOfT(),
      [_conditionalAdd]: __t$SetOfObjectNAndboolToSetOfT(),
      union: __t$ObjectNToSetOfT(),
      clear: T$.VoidTovoid(),
      [_clone]: __t$VoidToSetOfT(),
      lookup: __t$ObjectNToT()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(CastSet))));
    dart.setMethodsDefaultTypeArgSignature(CastSet, () => dart.global.Object.setPrototypeOf({
      cast: [T$.dynamic()],
      [$cast]: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(CastSet))));
    dart.setLibraryUri(CastSet, I[36]);
    dart.setFieldSignature(CastSet, () => dart.global.Object.setPrototypeOf({
      [_source$]: {type: __t$SetOfS(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_emptySet$]: {type: T$0.VoidToNSetOfR(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(CastSet))));
    dart.defineExtensionMethods(CastSet, ['cast', 'toSet']);
    return CastSet;
  });
  _internal.CastSet = _internal.CastSet$();
  collection.MapBase$ = dart.generic((K, V) => {
    var __t$MapBaseOfK$V = () => (__t$MapBaseOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|MapBase<1,2>")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$KAndVTovoid = () => (__t$KAndVTovoid = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(1,2)")))();
    var __t$KAndVToV = () => (__t$KAndVToV = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("2(1,2)")))();
    var __t$MapEntryOfK$V = () => (__t$MapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|MapEntry<1,2>")))();
    var __t$KToMapEntryOfK$V = () => (__t$KToMapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|MapEntry<1,2>(1)")))();
    var __t$IterableOfMapEntryOfK$V = () => (__t$IterableOfMapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Iterable<core|MapEntry<1,2>>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(~(1,2))")))();
    var __t$FnToMapOfK2$V2 = () => (__t$FnToMapOfK2$V2 = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<0^,1^>(core|MapEntry<0^,1^>(1,2))<core|Object?,core|Object?>")))();
    var __t$FnTovoid$ = () => (__t$FnTovoid$ = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(core|bool(1,2))")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$VToV = () => (__t$VToV = dart.constFn(V[_eval]("0(0)")))();
    var __t$VoidToNV = () => (__t$VoidToNV = dart.constFn(V[_eval]("0()?")))();
    var __t$ObjectNAndObjectNToV = () => (__t$ObjectNAndObjectNToV = dart.constFn(V[_eval]("0(core|Object?,core|Object?)")))();
    var __t$ObjectNAndObjectN__ToV = () => (__t$ObjectNAndObjectN__ToV = dart.constFn(V[_eval]("0(core|Object?,core|Object?{ifAbsent:core|Object?})")))();
    var __t$IterableOfV = () => (__t$IterableOfV = dart.constFn(V[_eval]("core|Iterable<0>")))();
    var __t$MapEntryOfK$V$ = () => (__t$MapEntryOfK$V$ = dart.constFn(core.MapEntry$(K, V)))();
    var __t$JSArrayOfK = () => (__t$JSArrayOfK = dart.constFn(_interceptors.JSArray$(K)))();
    var __t$_MapBaseValueIterableOfK$V = () => (__t$_MapBaseValueIterableOfK$V = dart.constFn(collection._MapBaseValueIterable$(K, V)))();
    class MapBase extends core.Object {
      cast(RK, RV) {
        return core.Map.castFrom(K, V, RK, RV, this);
      }
      forEach(action) {
        if (action == null) dart.nullFailed(I[46], 33, 21, "action");
        for (let key of this[$keys]) {
          action(key, V[_as](this[$_get](key)));
        }
      }
      addAll(other) {
        __t$MapOfK$V()[_as](other);
        if (other == null) dart.nullFailed(I[46], 39, 25, "other");
        other[$forEach](dart.fn((key, value) => {
          this[$_set](key, value);
        }, __t$KAndVTovoid()));
      }
      containsValue(value) {
        for (let key of this[$keys]) {
          if (dart.equals(this[$_get](key), value)) return true;
        }
        return false;
      }
      putIfAbsent(key, ifAbsent) {
        let t$3662, t$3661;
        K[_as](key);
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[46], 52, 26, "ifAbsent");
        if (dart.test(this[$containsKey](key))) {
          return V[_as](this[$_get](key));
        }
        t$3661 = key;
        t$3662 = ifAbsent();
        this[$_set](t$3661, t$3662);
        return t$3662;
      }
      update(key, update, opts) {
        let t$3662, t$3661, t$3662$, t$3661$;
        K[_as](key);
        __t$VToV()[_as](update);
        if (update == null) dart.nullFailed(I[46], 59, 21, "update");
        let ifAbsent = opts && 'ifAbsent' in opts ? opts.ifAbsent : null;
        __t$VoidToNV()[_as](ifAbsent);
        if (dart.test(this[$containsKey](key))) {
          t$3661 = key;
          t$3662 = update(V[_as](this[$_get](key)));
          this[$_set](t$3661, t$3662);
          return t$3662;
        }
        if (ifAbsent != null) {
          t$3661$ = key;
          t$3662$ = ifAbsent();
          this[$_set](t$3661$, t$3662$);
          return t$3662$;
        }
        dart.throw(new core.ArgumentError.value(key, "key", "Key not in map."));
      }
      updateAll(update) {
        __t$KAndVToV()[_as](update);
        if (update == null) dart.nullFailed(I[46], 69, 20, "update");
        for (let key of this[$keys]) {
          this[$_set](key, update(key, V[_as](this[$_get](key))));
        }
      }
      get entries() {
        return this[$keys][$map](__t$MapEntryOfK$V(), dart.fn(key => new (__t$MapEntryOfK$V$()).__(key, V[_as](this[$_get](key))), __t$KToMapEntryOfK$V()));
      }
      map(K2, V2, transform) {
        if (transform == null) dart.nullFailed(I[46], 79, 44, "transform");
        let result = new (_js_helper.LinkedMap$(K2, V2)).new();
        for (let key of this[$keys]) {
          let entry = transform(key, V[_as](this[$_get](key)));
          result[$_set](entry.key, entry.value);
        }
        return result;
      }
      addEntries(newEntries) {
        __t$IterableOfMapEntryOfK$V()[_as](newEntries);
        if (newEntries == null) dart.nullFailed(I[46], 88, 44, "newEntries");
        for (let entry of newEntries) {
          this[$_set](entry.key, entry.value);
        }
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[46], 94, 25, "test");
        let keysToRemove = __t$JSArrayOfK().of([]);
        for (let key of this[$keys]) {
          if (dart.test(test(key, V[_as](this[$_get](key))))) keysToRemove[$add](key);
        }
        for (let key of keysToRemove) {
          this[$remove](key);
        }
      }
      containsKey(key) {
        return this[$keys][$contains](key);
      }
      get length() {
        return this[$keys][$length];
      }
      get isEmpty() {
        return this[$keys][$isEmpty];
      }
      get isNotEmpty() {
        return this[$keys][$isNotEmpty];
      }
      get values() {
        return new (__t$_MapBaseValueIterableOfK$V()).new(this);
      }
      toString() {
        return collection.MapBase.mapToString(this);
      }
      static mapToString(m) {
        if (m == null) dart.nullFailed(I[46], 111, 51, "m");
        if (dart.test(_internal.isToStringVisiting(m))) {
          return "{...}";
        }
        let result = new core.StringBuffer.new();
        try {
          _internal.toStringVisiting[$add](m);
          result.write("{");
          let first = true;
          m[$forEach](dart.fn((k, v) => {
            if (!first) {
              result.write(", ");
            }
            first = false;
            result.write(k);
            result.write(": ");
            result.write(v);
          }, T$.ObjectNAndObjectNTovoid()));
          result.write("}");
        } finally {
          if (!core.identical(_internal.toStringVisiting[$last], m)) dart.assertFailed(null, I[46], 133, 14, "identical(toStringVisiting.last, m)");
          _internal.toStringVisiting[$removeLast]();
        }
        return dart.toString(result);
      }
      static _fillMapWithMappedIterable(map, iterable, key, value) {
        if (map == null) dart.nullFailed(I[46], 145, 29, "map");
        if (iterable == null) dart.nullFailed(I[46], 146, 25, "iterable");
        key == null ? key = C[54] || CT.C54 : null;
        value == null ? value = C[54] || CT.C54 : null;
        for (let element of iterable) {
          map[$_set](key(element), value(element));
        }
      }
      static _id(x) {
        return x;
      }
      static _fillMapWithIterables(map, keys, values) {
        if (map == null) dart.nullFailed(I[46], 163, 59, "map");
        if (keys == null) dart.nullFailed(I[46], 164, 25, "keys");
        if (values == null) dart.nullFailed(I[46], 164, 49, "values");
        let keyIterator = keys[$iterator];
        let valueIterator = values[$iterator];
        let hasNextKey = keyIterator.moveNext();
        let hasNextValue = valueIterator.moveNext();
        while (dart.test(hasNextKey) && dart.test(hasNextValue)) {
          map[$_set](keyIterator.current, valueIterator.current);
          hasNextKey = keyIterator.moveNext();
          hasNextValue = valueIterator.moveNext();
        }
        if (dart.test(hasNextKey) || dart.test(hasNextValue)) {
          dart.throw(new core.ArgumentError.new("Iterables do not have same length."));
        }
      }
    }
    (MapBase.new = function() {
      this.$ti = this.$ti || __t$MapBaseOfK$V();
      ;
    }).prototype = MapBase.prototype;
    dart.addRtiResources(MapBase, ["collection|MapBase", "core|Map"]);
    dart.setMethodSignature(MapBase, () => dart.global.Object.setPrototypeOf({
      cast: T$0.VoidToMapOfRK$RV(),
      [$cast]: T$0.VoidToMapOfRK$RV(),
      forEach: __t$FnTovoid(),
      [$forEach]: __t$FnTovoid(),
      addAll: T$.ObjectNTovoid(),
      [$addAll]: T$.ObjectNTovoid(),
      containsValue: T$.ObjectNTobool(),
      [$containsValue]: T$.ObjectNTobool(),
      putIfAbsent: __t$ObjectNAndObjectNToV(),
      [$putIfAbsent]: __t$ObjectNAndObjectNToV(),
      update: __t$ObjectNAndObjectN__ToV(),
      [$update]: __t$ObjectNAndObjectN__ToV(),
      updateAll: T$.ObjectNTovoid(),
      [$updateAll]: T$.ObjectNTovoid(),
      map: __t$FnToMapOfK2$V2(),
      [$map]: __t$FnToMapOfK2$V2(),
      addEntries: T$.ObjectNTovoid(),
      [$addEntries]: T$.ObjectNTovoid(),
      removeWhere: __t$FnTovoid$(),
      [$removeWhere]: __t$FnTovoid$(),
      containsKey: T$.ObjectNTobool(),
      [$containsKey]: T$.ObjectNTobool()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(MapBase))));
    dart.setMethodsDefaultTypeArgSignature(MapBase, () => dart.global.Object.setPrototypeOf({
      cast: [T$.dynamic(), T$.dynamic()],
      [$cast]: [T$.dynamic(), T$.dynamic()],
      map: [T$.dynamic(), T$.dynamic()],
      [$map]: [T$.dynamic(), T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(MapBase))));
    dart.setStaticMethodSignature(MapBase, () => ['mapToString', '_fillMapWithMappedIterable', '_id', '_fillMapWithIterables']);
    dart.setGetterSignature(MapBase, () => dart.global.Object.setPrototypeOf({
      entries: __t$IterableOfMapEntryOfK$V(),
      [$entries]: __t$IterableOfMapEntryOfK$V(),
      length: T$.int(),
      [$length]: T$.int(),
      isEmpty: T$.bool(),
      [$isEmpty]: T$.bool(),
      isNotEmpty: T$.bool(),
      [$isNotEmpty]: T$.bool(),
      values: __t$IterableOfV(),
      [$values]: __t$IterableOfV()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(MapBase))));
    dart.setLibraryUri(MapBase, I[24]);
    dart.defineExtensionMethods(MapBase, [
      'cast',
      'forEach',
      'addAll',
      'containsValue',
      'putIfAbsent',
      'update',
      'updateAll',
      'map',
      'addEntries',
      'removeWhere',
      'containsKey',
      'toString'
    ]);
    dart.defineExtensionAccessors(MapBase, [
      'entries',
      'length',
      'isEmpty',
      'isNotEmpty',
      'values'
    ]);
    return MapBase;
  });
  collection.MapBase = collection.MapBase$();
  _internal.CastMap$ = dart.generic((SK, SV, K, V) => {
    var __t$CastMapOfSK$SV$K$V = () => (__t$CastMapOfSK$SV$K$V = dart.constFn(SK[_eval]("@<0>")[_bind](SV)[_bind](K)[_bind](V)[_eval]("_internal|CastMap<1,2,3,4>")))();
    var __t$SKAndSVTovoid = () => (__t$SKAndSVTovoid = dart.constFn(SK[_eval]("@<0>")[_bind](SV)[_eval]("~(1,2)")))();
    var __t$SKAndSVToSV = () => (__t$SKAndSVToSV = dart.constFn(SK[_eval]("@<0>")[_bind](SV)[_eval]("2(1,2)")))();
    var __t$MapEntryOfSK$SVToMapEntryOfK$V = () => (__t$MapEntryOfSK$SVToMapEntryOfK$V = dart.constFn(SK[_eval]("@<0>")[_bind](SV)[_bind](K)[_bind](V)[_eval]("core|MapEntry<3,4>(core|MapEntry<1,2>)")))();
    var __t$SKAndSVTobool = () => (__t$SKAndSVTobool = dart.constFn(SK[_eval]("@<0>")[_bind](SV)[_eval]("core|bool(1,2)")))();
    var __t$MapOfSK$SV = () => (__t$MapOfSK$SV = dart.constFn(SK[_eval]("@<0>")[_bind](SV)[_eval]("core|Map<1,2>")))();
    var __t$VoidToSV = () => (__t$VoidToSV = dart.constFn(SV[_eval]("0()")))();
    var __t$SVToSV = () => (__t$SVToSV = dart.constFn(SV[_eval]("0(0)")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$KAndVToV = () => (__t$KAndVToV = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("2(1,2)")))();
    var __t$MapEntryOfK$V = () => (__t$MapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|MapEntry<1,2>")))();
    var __t$IterableOfMapEntryOfK$V = () => (__t$IterableOfMapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Iterable<core|MapEntry<1,2>>")))();
    var __t$IterableOfK = () => (__t$IterableOfK = dart.constFn(K[_eval]("core|Iterable<0>")))();
    var __t$VN = () => (__t$VN = dart.constFn(V[_eval]("0?")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$VToV = () => (__t$VToV = dart.constFn(V[_eval]("0(0)")))();
    var __t$VoidToNV = () => (__t$VoidToNV = dart.constFn(V[_eval]("0()?")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$CastMapOfK$V$SK$SV = () => (__t$CastMapOfK$V$SK$SV = dart.constFn(_internal.CastMap$(K, V, SK, SV)))();
    var __t$CastIterableOfSK$K = () => (__t$CastIterableOfSK$K = dart.constFn(_internal.CastIterable$(SK, K)))();
    var __t$CastIterableOfSV$V = () => (__t$CastIterableOfSV$V = dart.constFn(_internal.CastIterable$(SV, V)))();
    var __t$MapEntryOfK$V$ = () => (__t$MapEntryOfK$V$ = dart.constFn(core.MapEntry$(K, V)))();
    var __t$MapBaseOfK$V = () => (__t$MapBaseOfK$V = dart.constFn(collection.MapBase$(K, V)))();
    class CastMap extends __t$MapBaseOfK$V() {
      static ['_#new#tearOff'](SK, SV, K, V, _source) {
        if (_source == null) dart.nullFailed(I[44], 257, 16, "_source");
        return new (_internal.CastMap$(SK, SV, K, V)).new(_source);
      }
      cast(RK, RV) {
        return new (_internal.CastMap$(SK, SV, RK, RV)).new(this[_source$]);
      }
      containsValue(value) {
        return this[_source$][$containsValue](value);
      }
      containsKey(key) {
        return this[_source$][$containsKey](key);
      }
      _get(key) {
        return __t$VN()[_as](this[_source$][$_get](key));
      }
      _set(key, value$) {
        let value = value$;
        K[_as](key);
        V[_as](value);
        this[_source$][$_set](SK[_as](key), SV[_as](value));
        return value$;
      }
      putIfAbsent(key, ifAbsent) {
        K[_as](key);
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[44], 271, 37, "ifAbsent");
        return V[_as](this[_source$][$putIfAbsent](SK[_as](key), dart.fn(() => SV[_as](ifAbsent()), __t$VoidToSV())));
      }
      addAll(other) {
        __t$MapOfK$V()[_as](other);
        if (other == null) dart.nullFailed(I[44], 274, 25, "other");
        this[_source$][$addAll](new (__t$CastMapOfK$V$SK$SV()).new(other));
      }
      remove(key) {
        return __t$VN()[_as](this[_source$][$remove](key));
      }
      clear() {
        this[_source$][$clear]();
      }
      forEach(f) {
        if (f == null) dart.nullFailed(I[44], 284, 21, "f");
        this[_source$][$forEach](dart.fn((key, value) => {
          f(K[_as](key), V[_as](value));
        }, __t$SKAndSVTovoid()));
      }
      get keys() {
        return __t$CastIterableOfSK$K().new(this[_source$][$keys]);
      }
      get values() {
        return __t$CastIterableOfSV$V().new(this[_source$][$values]);
      }
      get length() {
        return this[_source$][$length];
      }
      get isEmpty() {
        return this[_source$][$isEmpty];
      }
      get isNotEmpty() {
        return this[_source$][$isNotEmpty];
      }
      update(key, update, opts) {
        K[_as](key);
        __t$VToV()[_as](update);
        if (update == null) dart.nullFailed(I[44], 300, 21, "update");
        let ifAbsent = opts && 'ifAbsent' in opts ? opts.ifAbsent : null;
        __t$VoidToNV()[_as](ifAbsent);
        return V[_as](this[_source$][$update](SK[_as](key), dart.fn(value => SV[_as](update(V[_as](value))), __t$SVToSV()), {ifAbsent: ifAbsent == null ? null : dart.fn(() => SV[_as](ifAbsent()), __t$VoidToSV())}));
      }
      updateAll(update) {
        __t$KAndVToV()[_as](update);
        if (update == null) dart.nullFailed(I[44], 305, 20, "update");
        this[_source$][$updateAll](dart.fn((key, value) => SV[_as](update(K[_as](key), V[_as](value))), __t$SKAndSVToSV()));
      }
      get entries() {
        return this[_source$][$entries][$map](__t$MapEntryOfK$V(), dart.fn(e => {
          if (e == null) dart.nullFailed(I[44], 311, 27, "e");
          return new (__t$MapEntryOfK$V$()).__(K[_as](e.key), V[_as](e.value));
        }, __t$MapEntryOfSK$SVToMapEntryOfK$V()));
      }
      addEntries(entries) {
        __t$IterableOfMapEntryOfK$V()[_as](entries);
        if (entries == null) dart.nullFailed(I[44], 314, 44, "entries");
        for (let entry of entries) {
          this[_source$][$_set](SK[_as](entry.key), SV[_as](entry.value));
        }
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[44], 320, 25, "test");
        this[_source$][$removeWhere](dart.fn((key, value) => test(K[_as](key), V[_as](value)), __t$SKAndSVTobool()));
      }
    }
    (CastMap.new = function(_source) {
      if (_source == null) dart.nullFailed(I[44], 257, 16, "_source");
      this[_source$] = _source;
      this.$ti = this.$ti || __t$CastMapOfSK$SV$K$V();
      dart.global.Object.getPrototypeOf(CastMap).new.call(this);
      ;
    }).prototype = CastMap.prototype;
    dart.addRtiResources(CastMap, ["_internal|CastMap"]);
    dart.setMethodSignature(CastMap, () => dart.global.Object.setPrototypeOf({
      _get: __t$ObjectNToVN(),
      [$_get]: __t$ObjectNToVN(),
      _set: T$.ObjectNAndObjectNTovoid(),
      [$_set]: T$.ObjectNAndObjectNTovoid(),
      remove: __t$ObjectNToVN(),
      [$remove]: __t$ObjectNToVN(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(CastMap))));
    dart.setGetterSignature(CastMap, () => dart.global.Object.setPrototypeOf({
      keys: __t$IterableOfK(),
      [$keys]: __t$IterableOfK()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(CastMap))));
    dart.setLibraryUri(CastMap, I[36]);
    dart.setFieldSignature(CastMap, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$MapOfSK$SV(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(CastMap))));
    dart.defineExtensionMethods(CastMap, [
      'cast',
      'containsValue',
      'containsKey',
      '_get',
      '_set',
      'putIfAbsent',
      'addAll',
      'remove',
      'clear',
      'forEach',
      'update',
      'updateAll',
      'addEntries',
      'removeWhere'
    ]);
    dart.defineExtensionAccessors(CastMap, [
      'keys',
      'values',
      'length',
      'isEmpty',
      'isNotEmpty',
      'entries'
    ]);
    return CastMap;
  });
  _internal.CastMap = _internal.CastMap$();
  var _source$3 = dart.privateName(_internal, "CastQueue._source");
  _internal.CastQueue$ = dart.generic((S, T) => {
    var __t$CastQueueOfS$T = () => (__t$CastQueueOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|CastQueue<1,2>")))();
    var __t$STobool = () => (__t$STobool = dart.constFn(S[_eval]("core|bool(0)")))();
    var __t$QueueOfS = () => (__t$QueueOfS = dart.constFn(S[_eval]("collection|Queue<0>")))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(T[_eval]("core|Iterable<0>")))();
    var __t$VoidToT = () => (__t$VoidToT = dart.constFn(T[_eval]("0()")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(T[_eval]("~(core|bool(0))")))();
    var __t$CastIterableOfT$S = () => (__t$CastIterableOfT$S = dart.constFn(_internal.CastIterable$(T, S)))();
    var __t$_CastIterableBaseOfS$T = () => (__t$_CastIterableBaseOfS$T = dart.constFn(_internal._CastIterableBase$(S, T)))();
    class CastQueue extends __t$_CastIterableBaseOfS$T() {
      get [_source$]() {
        return this[_source$3];
      }
      set [_source$](value) {
        super[_source$] = value;
      }
      static ['_#new#tearOff'](S, T, _source) {
        if (_source == null) dart.nullFailed(I[44], 327, 18, "_source");
        return new (_internal.CastQueue$(S, T)).new(_source);
      }
      cast(R) {
        return new (_internal.CastQueue$(S, R)).new(this[_source$]);
      }
      removeFirst() {
        return T[_as](this[_source$].removeFirst());
      }
      removeLast() {
        return T[_as](this[_source$].removeLast());
      }
      add(value) {
        T[_as](value);
        this[_source$].add(S[_as](value));
      }
      addFirst(value) {
        T[_as](value);
        this[_source$].addFirst(S[_as](value));
      }
      addLast(value) {
        T[_as](value);
        this[_source$].addLast(S[_as](value));
      }
      remove(other) {
        return this[_source$].remove(other);
      }
      addAll(elements) {
        __t$IterableOfT()[_as](elements);
        if (elements == null) dart.nullFailed(I[44], 346, 27, "elements");
        this[_source$].addAll(__t$CastIterableOfT$S().new(elements));
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[44], 350, 25, "test");
        this[_source$].removeWhere(dart.fn(element => test(T[_as](element)), __t$STobool()));
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[44], 354, 25, "test");
        this[_source$].retainWhere(dart.fn(element => test(T[_as](element)), __t$STobool()));
      }
      clear() {
        this[_source$].clear();
      }
    }
    (CastQueue.new = function(_source) {
      if (_source == null) dart.nullFailed(I[44], 327, 18, "_source");
      this[_source$3] = _source;
      this.$ti = this.$ti || __t$CastQueueOfS$T();
      dart.global.Object.getPrototypeOf(CastQueue).new.call(this);
      ;
    }).prototype = CastQueue.prototype;
    dart.addRtiResources(CastQueue, ["_internal|CastQueue", "collection|Queue", "core|Iterable", "collection|_QueueIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(CastQueue, () => dart.global.Object.setPrototypeOf({
      cast: T$0.VoidToQueueOfR(),
      [$cast]: T$0.VoidToQueueOfR(),
      removeFirst: __t$VoidToT(),
      removeLast: __t$VoidToT(),
      add: T$.ObjectNTovoid(),
      addFirst: T$.ObjectNTovoid(),
      addLast: T$.ObjectNTovoid(),
      remove: T$.ObjectNTobool(),
      addAll: T$.ObjectNTovoid(),
      removeWhere: __t$FnTovoid(),
      retainWhere: __t$FnTovoid(),
      clear: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(CastQueue))));
    dart.setMethodsDefaultTypeArgSignature(CastQueue, () => dart.global.Object.setPrototypeOf({
      cast: [T$.dynamic()],
      [$cast]: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(CastQueue))));
    dart.setLibraryUri(CastQueue, I[36]);
    dart.setFieldSignature(CastQueue, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$QueueOfS(), isConst: false, isFinal: true, libraryUri: I[24]}}, dart.getFields(dart.global.Object.getPrototypeOf(CastQueue))));
    dart.defineExtensionMethods(CastQueue, ['cast']);
    return CastQueue;
  });
  _internal.CastQueue = _internal.CastQueue$();
  var _message$0 = dart.privateName(_internal, "_message");
  _internal.LateError = class LateError extends core.Error {
    static ['_#new#tearOff'](_message = null) {
      return new _internal.LateError.new(_message);
    }
    static ['_#fieldADI#tearOff'](fieldName) {
      if (fieldName == null) dart.nullFailed(I[47], 18, 29, "fieldName");
      return new _internal.LateError.fieldADI(fieldName);
    }
    static ['_#localADI#tearOff'](localName) {
      if (localName == null) dart.nullFailed(I[47], 23, 29, "localName");
      return new _internal.LateError.localADI(localName);
    }
    static ['_#fieldNI#tearOff'](fieldName) {
      if (fieldName == null) dart.nullFailed(I[47], 29, 28, "fieldName");
      return new _internal.LateError.fieldNI(fieldName);
    }
    static ['_#localNI#tearOff'](localName) {
      if (localName == null) dart.nullFailed(I[47], 33, 28, "localName");
      return new _internal.LateError.localNI(localName);
    }
    static ['_#fieldAI#tearOff'](fieldName) {
      if (fieldName == null) dart.nullFailed(I[47], 37, 28, "fieldName");
      return new _internal.LateError.fieldAI(fieldName);
    }
    static ['_#localAI#tearOff'](localName) {
      if (localName == null) dart.nullFailed(I[47], 41, 28, "localName");
      return new _internal.LateError.localAI(localName);
    }
    toString() {
      let message = this[_message$0];
      return message != null ? "LateInitializationError: " + dart.str(message) : "LateInitializationError";
    }
  };
  (_internal.LateError.new = function(_message = null) {
    this[_message$0] = _message;
    dart.global.Object.getPrototypeOf(_internal.LateError).new.call(this);
    ;
  }).prototype = _internal.LateError.prototype;
  (_internal.LateError.fieldADI = function(fieldName) {
    if (fieldName == null) dart.nullFailed(I[47], 18, 29, "fieldName");
    this[_message$0] = "Field '" + dart.str(fieldName) + "' has been assigned during initialization.";
    dart.global.Object.getPrototypeOf(_internal.LateError).new.call(this);
    ;
  }).prototype = _internal.LateError.prototype;
  (_internal.LateError.localADI = function(localName) {
    if (localName == null) dart.nullFailed(I[47], 23, 29, "localName");
    this[_message$0] = "Local '" + dart.str(localName) + "' has been assigned during initialization.";
    dart.global.Object.getPrototypeOf(_internal.LateError).new.call(this);
    ;
  }).prototype = _internal.LateError.prototype;
  (_internal.LateError.fieldNI = function(fieldName) {
    if (fieldName == null) dart.nullFailed(I[47], 29, 28, "fieldName");
    this[_message$0] = "Field '" + dart.str(fieldName) + "' has not been initialized.";
    dart.global.Object.getPrototypeOf(_internal.LateError).new.call(this);
    ;
  }).prototype = _internal.LateError.prototype;
  (_internal.LateError.localNI = function(localName) {
    if (localName == null) dart.nullFailed(I[47], 33, 28, "localName");
    this[_message$0] = "Local '" + dart.str(localName) + "' has not been initialized.";
    dart.global.Object.getPrototypeOf(_internal.LateError).new.call(this);
    ;
  }).prototype = _internal.LateError.prototype;
  (_internal.LateError.fieldAI = function(fieldName) {
    if (fieldName == null) dart.nullFailed(I[47], 37, 28, "fieldName");
    this[_message$0] = "Field '" + dart.str(fieldName) + "' has already been initialized.";
    dart.global.Object.getPrototypeOf(_internal.LateError).new.call(this);
    ;
  }).prototype = _internal.LateError.prototype;
  (_internal.LateError.localAI = function(localName) {
    if (localName == null) dart.nullFailed(I[47], 41, 28, "localName");
    this[_message$0] = "Local '" + dart.str(localName) + "' has already been initialized.";
    dart.global.Object.getPrototypeOf(_internal.LateError).new.call(this);
    ;
  }).prototype = _internal.LateError.prototype;
  dart.addRtiResources(_internal.LateError, ["_internal|LateError"]);
  dart.setLibraryUri(_internal.LateError, I[36]);
  dart.setFieldSignature(_internal.LateError, () => dart.global.Object.setPrototypeOf({[_message$0]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_internal.LateError))));
  dart.defineExtensionMethods(_internal.LateError, ['toString']);
  _internal.ReachabilityError = class ReachabilityError extends core.Error {
    static ['_#new#tearOff'](_message = null) {
      return new _internal.ReachabilityError.new(_message);
    }
    toString() {
      let message = this[_message$0];
      return message != null ? "ReachabilityError: " + dart.str(message) : "ReachabilityError";
    }
  };
  (_internal.ReachabilityError.new = function(_message = null) {
    this[_message$0] = _message;
    dart.global.Object.getPrototypeOf(_internal.ReachabilityError).new.call(this);
    ;
  }).prototype = _internal.ReachabilityError.prototype;
  dart.addRtiResources(_internal.ReachabilityError, ["_internal|ReachabilityError"]);
  dart.setLibraryUri(_internal.ReachabilityError, I[36]);
  dart.setFieldSignature(_internal.ReachabilityError, () => dart.global.Object.setPrototypeOf({[_message$0]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_internal.ReachabilityError))));
  dart.defineExtensionMethods(_internal.ReachabilityError, ['toString']);
  _internal.EfficientLengthIterable$ = dart.generic(T => {
    var __t$EfficientLengthIterableOfT = () => (__t$EfficientLengthIterableOfT = dart.constFn(T[_eval]("_internal|EfficientLengthIterable<0>")))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(core.Iterable$(T)))();
    class EfficientLengthIterable extends __t$IterableOfT() {}
    (EfficientLengthIterable.new = function() {
      this.$ti = this.$ti || __t$EfficientLengthIterableOfT();
      dart.global.Object.getPrototypeOf(EfficientLengthIterable).new.call(this);
      ;
    }).prototype = EfficientLengthIterable.prototype;
    dart.addRtiResources(EfficientLengthIterable, ["_internal|EfficientLengthIterable"]);
    dart.setLibraryUri(EfficientLengthIterable, I[36]);
    return EfficientLengthIterable;
  });
  _internal.EfficientLengthIterable = _internal.EfficientLengthIterable$();
  _internal.HideEfficientLengthIterable$ = dart.generic(T => {
    var __t$HideEfficientLengthIterableOfT = () => (__t$HideEfficientLengthIterableOfT = dart.constFn(T[_eval]("_internal|HideEfficientLengthIterable<0>")))();
    class HideEfficientLengthIterable extends core.Object {
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (HideEfficientLengthIterable.new = function() {
      this.$ti = this.$ti || __t$HideEfficientLengthIterableOfT();
      ;
    }).prototype = HideEfficientLengthIterable.prototype;
    dart.addRtiResources(HideEfficientLengthIterable, ["_internal|HideEfficientLengthIterable", "core|Iterable"]);
    dart.setLibraryUri(HideEfficientLengthIterable, I[36]);
    return HideEfficientLengthIterable;
  });
  _internal.HideEfficientLengthIterable = _internal.HideEfficientLengthIterable$();
  _internal.ListIterable$ = dart.generic(E => {
    var __t$ListIterableOfE = () => (__t$ListIterableOfE = dart.constFn(E[_eval]("_internal|ListIterable<0>")))();
    var __t$VoidToNE = () => (__t$VoidToNE = dart.constFn(E[_eval]("0()?")))();
    var __t$EAndEToE = () => (__t$EAndEToE = dart.constFn(E[_eval]("0(0,0)")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$ListIteratorOfE = () => (__t$ListIteratorOfE = dart.constFn(_internal.ListIterator$(E)))();
    var __t$SubListIterableOfE = () => (__t$SubListIterableOfE = dart.constFn(_internal.SubListIterable$(E)))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(core.List$(E)))();
    var __t$_HashSetOfE = () => (__t$_HashSetOfE = dart.constFn(collection._HashSet$(E)))();
    var __t$EfficientLengthIterableOfE = () => (__t$EfficientLengthIterableOfE = dart.constFn(_internal.EfficientLengthIterable$(E)))();
    class ListIterable extends __t$EfficientLengthIterableOfE() {
      get iterator() {
        return new (__t$ListIteratorOfE()).new(this);
      }
      forEach(action) {
        if (action == null) dart.nullFailed(I[48], 46, 21, "action");
        let length = this.length;
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          action(this.elementAt(i));
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
      }
      get isEmpty() {
        return this.length === 0;
      }
      get first() {
        if (this.length === 0) dart.throw(_internal.IterableElementError.noElement());
        return this.elementAt(0);
      }
      get last() {
        if (this.length === 0) dart.throw(_internal.IterableElementError.noElement());
        return this.elementAt(dart.notNull(this.length) - 1);
      }
      get single() {
        if (this.length === 0) dart.throw(_internal.IterableElementError.noElement());
        if (dart.notNull(this.length) > 1) dart.throw(_internal.IterableElementError.tooMany());
        return this.elementAt(0);
      }
      contains(element) {
        let length = this.length;
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          if (dart.equals(this.elementAt(i), element)) return true;
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return false;
      }
      every(test) {
        if (test == null) dart.nullFailed(I[48], 85, 19, "test");
        let length = this.length;
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          if (!dart.test(test(this.elementAt(i)))) return false;
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return true;
      }
      any(test) {
        if (test == null) dart.nullFailed(I[48], 96, 17, "test");
        let length = this.length;
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          if (dart.test(test(this.elementAt(i)))) return true;
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return false;
      }
      firstWhere(test, opts) {
        if (test == null) dart.nullFailed(I[48], 107, 21, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let length = this.length;
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          let element = this.elementAt(i);
          if (dart.test(test(element))) return element;
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      lastWhere(test, opts) {
        if (test == null) dart.nullFailed(I[48], 120, 20, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let length = this.length;
        for (let i = dart.notNull(length) - 1; i >= 0; i = i - 1) {
          let element = this.elementAt(i);
          if (dart.test(test(element))) return element;
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      singleWhere(test, opts) {
        if (test == null) dart.nullFailed(I[48], 133, 22, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let length = this.length;
        let match = null;
        let t$36$35match$35isSet = false;
        function t$36$35match$35get() {
          return t$36$35match$35isSet ? match : dart.throw(new _internal.LateError.localNI("match"));
        }
        function t$36$35match$35set(match$35param) {
          t$36$35match$35isSet = true;
          return match = match$35param;
        }
        let matchFound = false;
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          let element = this.elementAt(i);
          if (dart.test(test(element))) {
            if (matchFound) {
              dart.throw(_internal.IterableElementError.tooMany());
            }
            matchFound = true;
            t$36$35match$35set(element);
          }
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        if (matchFound) return t$36$35match$35get();
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      join(separator = "") {
        if (separator == null) dart.nullFailed(I[48], 155, 23, "separator");
        let length = this.length;
        if (!separator[$isEmpty]) {
          if (length === 0) return "";
          let first = dart.str(this.elementAt(0));
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
          let buffer = new core.StringBuffer.new(first);
          for (let i = 1; i < dart.notNull(length); i = i + 1) {
            buffer.write(separator);
            buffer.write(this.elementAt(i));
            if (length != this.length) {
              dart.throw(new core.ConcurrentModificationError.new(this));
            }
          }
          return dart.toString(buffer);
        } else {
          let buffer = new core.StringBuffer.new();
          for (let i = 0; i < dart.notNull(length); i = i + 1) {
            buffer.write(this.elementAt(i));
            if (length != this.length) {
              dart.throw(new core.ConcurrentModificationError.new(this));
            }
          }
          return dart.toString(buffer);
        }
      }
      where(test) {
        if (test == null) dart.nullFailed(I[48], 184, 26, "test");
        return super[$where](test);
      }
      map(T, toElement) {
        if (toElement == null) dart.nullFailed(I[48], 186, 24, "toElement");
        return new (_internal.MappedListIterable$(E, T)).new(this, toElement);
      }
      reduce(combine) {
        __t$EAndEToE()[_as](combine);
        if (combine == null) dart.nullFailed(I[48], 189, 14, "combine");
        let length = this.length;
        if (length === 0) dart.throw(_internal.IterableElementError.noElement());
        let value = this.elementAt(0);
        for (let i = 1; i < dart.notNull(length); i = i + 1) {
          value = combine(value, this.elementAt(i));
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return value;
      }
      fold(T, initialValue, combine) {
        if (combine == null) dart.nullFailed(I[48], 202, 31, "combine");
        let value = initialValue;
        let length = this.length;
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          value = combine(value, this.elementAt(i));
          if (length != this.length) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
        return value;
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[48], 214, 24, "count");
        return new (__t$SubListIterableOfE()).new(this, count, null);
      }
      skipWhile(test) {
        if (test == null) dart.nullFailed(I[48], 216, 30, "test");
        return super[$skipWhile](test);
      }
      take(count) {
        if (count == null) dart.nullFailed(I[48], 218, 24, "count");
        return new (__t$SubListIterableOfE()).new(this, 0, _internal.checkNotNullable(T$.int(), count, "count"));
      }
      takeWhile(test) {
        if (test == null) dart.nullFailed(I[48], 221, 30, "test");
        return super[$takeWhile](test);
      }
      toList(opts) {
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[48], 223, 24, "growable");
        return __t$ListOfE().of(this, {growable: growable});
      }
      toSet() {
        let result = new (__t$_HashSetOfE()).new();
        for (let i = 0; i < dart.notNull(this.length); i = i + 1) {
          result.add(this.elementAt(i));
        }
        return result;
      }
    }
    (ListIterable.new = function() {
      this.$ti = this.$ti || __t$ListIterableOfE();
      dart.global.Object.getPrototypeOf(ListIterable).new.call(this);
      ;
    }).prototype = ListIterable.prototype;
    dart.addRtiResources(ListIterable, ["_internal|ListIterable", "_internal|HideEfficientLengthIterable", "core|Iterable"]);
    dart.setGetterSignature(ListIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(ListIterable))));
    dart.setLibraryUri(ListIterable, I[36]);
    dart.defineExtensionMethods(ListIterable, [
      'forEach',
      'contains',
      'every',
      'any',
      'firstWhere',
      'lastWhere',
      'singleWhere',
      'join',
      'where',
      'map',
      'reduce',
      'fold',
      'skip',
      'skipWhile',
      'take',
      'takeWhile',
      'toList',
      'toSet'
    ]);
    dart.defineExtensionAccessors(ListIterable, [
      'iterator',
      'isEmpty',
      'first',
      'last',
      'single'
    ]);
    return ListIterable;
  });
  _internal.ListIterable = _internal.ListIterable$();
  var _iterable$ = dart.privateName(_internal, "_iterable");
  var _start$ = dart.privateName(_internal, "_start");
  var _endOrLength$ = dart.privateName(_internal, "_endOrLength");
  var _endIndex = dart.privateName(_internal, "_endIndex");
  var _startIndex = dart.privateName(_internal, "_startIndex");
  _internal.SubListIterable$ = dart.generic(E => {
    var __t$SubListIterableOfE = () => (__t$SubListIterableOfE = dart.constFn(E[_eval]("_internal|SubListIterable<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$EmptyIterableOfE = () => (__t$EmptyIterableOfE = dart.constFn(_internal.EmptyIterable$(E)))();
    var __t$SubListIterableOfE$ = () => (__t$SubListIterableOfE$ = dart.constFn(_internal.SubListIterable$(E)))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(core.List$(E)))();
    var __t$ListIterableOfE = () => (__t$ListIterableOfE = dart.constFn(_internal.ListIterable$(E)))();
    class SubListIterable extends __t$ListIterableOfE() {
      static ['_#new#tearOff'](E, _iterable, _start, _endOrLength) {
        if (_iterable == null) dart.nullFailed(I[48], 241, 24, "_iterable");
        if (_start == null) dart.nullFailed(I[48], 241, 40, "_start");
        return new (_internal.SubListIterable$(E)).new(_iterable, _start, _endOrLength);
      }
      get [_endIndex]() {
        let length = this[_iterable$][$length];
        let endOrLength = this[_endOrLength$];
        if (endOrLength == null || dart.notNull(endOrLength) > dart.notNull(length)) return length;
        return endOrLength;
      }
      get [_startIndex]() {
        let length = this[_iterable$][$length];
        if (dart.notNull(this[_start$]) > dart.notNull(length)) return length;
        return this[_start$];
      }
      get length() {
        let length = this[_iterable$][$length];
        if (dart.notNull(this[_start$]) >= dart.notNull(length)) return 0;
        let endOrLength = this[_endOrLength$];
        if (endOrLength == null || dart.notNull(endOrLength) >= dart.notNull(length)) {
          return dart.notNull(length) - dart.notNull(this[_start$]);
        }
        return dart.notNull(endOrLength) - dart.notNull(this[_start$]);
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[48], 275, 19, "index");
        let realIndex = dart.notNull(this[_startIndex]) + dart.notNull(index);
        if (dart.notNull(index) < 0 || realIndex >= dart.notNull(this[_endIndex])) {
          dart.throw(new core.IndexError.withLength(index, this.length, {indexable: this, name: "index"}));
        }
        return this[_iterable$][$elementAt](realIndex);
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[48], 284, 24, "count");
        core.RangeError.checkNotNegative(count, "count");
        let newStart = dart.notNull(this[_start$]) + dart.notNull(count);
        let endOrLength = this[_endOrLength$];
        if (endOrLength != null && newStart >= dart.notNull(endOrLength)) {
          return new (__t$EmptyIterableOfE()).new();
        }
        return new (__t$SubListIterableOfE$()).new(this[_iterable$], newStart, this[_endOrLength$]);
      }
      take(count) {
        if (count == null) dart.nullFailed(I[48], 294, 24, "count");
        core.RangeError.checkNotNegative(count, "count");
        let endOrLength = this[_endOrLength$];
        if (endOrLength == null) {
          return new (__t$SubListIterableOfE$()).new(this[_iterable$], this[_start$], dart.notNull(this[_start$]) + dart.notNull(count));
        } else {
          let newEnd = dart.notNull(this[_start$]) + dart.notNull(count);
          if (dart.notNull(endOrLength) < newEnd) return this;
          return new (__t$SubListIterableOfE$()).new(this[_iterable$], this[_start$], newEnd);
        }
      }
      toList(opts) {
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[48], 306, 24, "growable");
        let start = this[_start$];
        let end = this[_iterable$][$length];
        let endOrLength = this[_endOrLength$];
        if (endOrLength != null && dart.notNull(endOrLength) < dart.notNull(end)) end = endOrLength;
        let length = dart.notNull(end) - dart.notNull(start);
        if (length <= 0) return __t$ListOfE().empty({growable: growable});
        let result = __t$ListOfE().filled(length, this[_iterable$][$elementAt](start), {growable: growable});
        for (let i = 1; i < length; i = i + 1) {
          result[$_set](i, this[_iterable$][$elementAt](dart.notNull(start) + i));
          if (dart.notNull(this[_iterable$][$length]) < dart.notNull(end)) dart.throw(new core.ConcurrentModificationError.new(this));
        }
        return result;
      }
    }
    (SubListIterable.new = function(_iterable, _start, _endOrLength) {
      if (_iterable == null) dart.nullFailed(I[48], 241, 24, "_iterable");
      if (_start == null) dart.nullFailed(I[48], 241, 40, "_start");
      this[_iterable$] = _iterable;
      this[_start$] = _start;
      this[_endOrLength$] = _endOrLength;
      this.$ti = this.$ti || __t$SubListIterableOfE();
      dart.global.Object.getPrototypeOf(SubListIterable).new.call(this);
      core.RangeError.checkNotNegative(this[_start$], "start");
      let endOrLength = this[_endOrLength$];
      if (endOrLength != null) {
        core.RangeError.checkNotNegative(endOrLength, "end");
        if (dart.notNull(this[_start$]) > dart.notNull(endOrLength)) {
          dart.throw(new core.RangeError.range(this[_start$], 0, endOrLength, "start"));
        }
      }
    }).prototype = SubListIterable.prototype;
    dart.addRtiResources(SubListIterable, ["_internal|SubListIterable"]);
    dart.setGetterSignature(SubListIterable, () => dart.global.Object.setPrototypeOf({
      [_endIndex]: T$.int(),
      [_startIndex]: T$.int()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(SubListIterable))));
    dart.setLibraryUri(SubListIterable, I[36]);
    dart.setFieldSignature(SubListIterable, () => dart.global.Object.setPrototypeOf({
      [_iterable$]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_start$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_endOrLength$]: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(SubListIterable))));
    dart.defineExtensionMethods(SubListIterable, ['elementAt', 'skip', 'take', 'toList']);
    dart.defineExtensionAccessors(SubListIterable, ['length']);
    return SubListIterable;
  });
  _internal.SubListIterable = _internal.SubListIterable$();
  var _current$ = dart.privateName(_internal, "_current");
  var _index$ = dart.privateName(_internal, "_index");
  _internal.ListIterator$ = dart.generic(E => {
    var __t$ListIteratorOfE = () => (__t$ListIteratorOfE = dart.constFn(E[_eval]("_internal|ListIterator<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    class ListIterator extends core.Object {
      static ['_#new#tearOff'](E, iterable) {
        if (iterable == null) dart.nullFailed(I[48], 337, 28, "iterable");
        return new (_internal.ListIterator$(E)).new(iterable);
      }
      get current() {
        return E[_as](this[_current$]);
      }
      moveNext() {
        let length = this[_iterable$][$length];
        if (this[_length$] != length) {
          dart.throw(new core.ConcurrentModificationError.new(this[_iterable$]));
        }
        if (dart.notNull(this[_index$]) >= dart.notNull(length)) {
          this[_current$] = null;
          return false;
        }
        this[_current$] = this[_iterable$][$elementAt](this[_index$]);
        this[_index$] = dart.notNull(this[_index$]) + 1;
        return true;
      }
    }
    (ListIterator.new = function(iterable) {
      if (iterable == null) dart.nullFailed(I[48], 337, 28, "iterable");
      this[_current$] = null;
      this[_iterable$] = iterable;
      this[_length$] = iterable[$length];
      this[_index$] = 0;
      this.$ti = this.$ti || __t$ListIteratorOfE();
      ;
    }).prototype = ListIterator.prototype;
    dart.addRtiResources(ListIterator, ["_internal|ListIterator", "core|Iterator"]);
    dart.setMethodSignature(ListIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(ListIterator))));
    dart.setGetterSignature(ListIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(ListIterator))));
    dart.setLibraryUri(ListIterator, I[36]);
    dart.setFieldSignature(ListIterator, () => dart.global.Object.setPrototypeOf({
      [_iterable$]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_length$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_index$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_current$]: {type: __t$EN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(ListIterator))));
    return ListIterator;
  });
  _internal.ListIterator = _internal.ListIterator$();
  var _f$ = dart.privateName(_internal, "_f");
  _internal.MappedIterable$ = dart.generic((S, T) => {
    var __t$MappedIterableOfS$T = () => (__t$MappedIterableOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|MappedIterable<1,2>")))();
    var __t$IterableOfS = () => (__t$IterableOfS = dart.constFn(S[_eval]("core|Iterable<0>")))();
    var __t$SToT = () => (__t$SToT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("2(1)")))();
    var __t$IteratorOfT = () => (__t$IteratorOfT = dart.constFn(T[_eval]("core|Iterator<0>")))();
    var __t$MappedIteratorOfS$T = () => (__t$MappedIteratorOfS$T = dart.constFn(_internal.MappedIterator$(S, T)))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(core.Iterable$(T)))();
    class MappedIterable extends __t$IterableOfT() {
      static new(iterable, $function) {
        if (iterable == null) dart.nullFailed(I[48], 366, 38, "iterable");
        if ($function == null) dart.nullFailed(I[48], 366, 50, "function");
        if (T$.EfficientLengthIterable()[_is](iterable)) {
          return new (_internal.EfficientLengthMappedIterable$(S, T)).new(iterable, $function);
        }
        return new (_internal.MappedIterable$(S, T)).__(iterable, $function);
      }
      static ['_#new#tearOff'](S, T, iterable, $function) {
        if (iterable == null) dart.nullFailed(I[48], 366, 38, "iterable");
        if ($function == null) dart.nullFailed(I[48], 366, 50, "function");
        return _internal.MappedIterable$(S, T).new(iterable, $function);
      }
      static ['_#_#tearOff'](S, T, _iterable, _f) {
        if (_iterable == null) dart.nullFailed(I[48], 373, 25, "_iterable");
        if (_f == null) dart.nullFailed(I[48], 373, 41, "_f");
        return new (_internal.MappedIterable$(S, T)).__(_iterable, _f);
      }
      get iterator() {
        return new (__t$MappedIteratorOfS$T()).new(this[_iterable$][$iterator], this[_f$]);
      }
      get length() {
        return this[_iterable$][$length];
      }
      get isEmpty() {
        return this[_iterable$][$isEmpty];
      }
      get first() {
        let t$3664;
        t$3664 = this[_iterable$][$first];
        return this[_f$](t$3664);
      }
      get last() {
        let t$3664;
        t$3664 = this[_iterable$][$last];
        return this[_f$](t$3664);
      }
      get single() {
        let t$3664;
        t$3664 = this[_iterable$][$single];
        return this[_f$](t$3664);
      }
      elementAt(index) {
        let t$3664;
        if (index == null) dart.nullFailed(I[48], 385, 19, "index");
        t$3664 = this[_iterable$][$elementAt](index);
        return this[_f$](t$3664);
      }
    }
    (MappedIterable.__ = function(_iterable, _f) {
      if (_iterable == null) dart.nullFailed(I[48], 373, 25, "_iterable");
      if (_f == null) dart.nullFailed(I[48], 373, 41, "_f");
      this[_iterable$] = _iterable;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$MappedIterableOfS$T();
      dart.global.Object.getPrototypeOf(MappedIterable).new.call(this);
      ;
    }).prototype = MappedIterable.prototype;
    dart.addRtiResources(MappedIterable, ["_internal|MappedIterable"]);
    dart.setStaticMethodSignature(MappedIterable, () => ['new']);
    dart.setGetterSignature(MappedIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfT(),
      [$iterator]: __t$IteratorOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(MappedIterable))));
    dart.setLibraryUri(MappedIterable, I[36]);
    dart.setFieldSignature(MappedIterable, () => dart.global.Object.setPrototypeOf({
      [_iterable$]: {type: __t$IterableOfS(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$SToT(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(MappedIterable))));
    dart.defineExtensionMethods(MappedIterable, ['elementAt']);
    dart.defineExtensionAccessors(MappedIterable, [
      'iterator',
      'length',
      'isEmpty',
      'first',
      'last',
      'single'
    ]);
    return MappedIterable;
  });
  _internal.MappedIterable = _internal.MappedIterable$();
  _internal.EfficientLengthMappedIterable$ = dart.generic((S, T) => {
    var __t$EfficientLengthMappedIterableOfS$T = () => (__t$EfficientLengthMappedIterableOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|EfficientLengthMappedIterable<1,2>")))();
    var __t$MappedIterableOfS$T = () => (__t$MappedIterableOfS$T = dart.constFn(_internal.MappedIterable$(S, T)))();
    class EfficientLengthMappedIterable extends __t$MappedIterableOfS$T() {
      static ['_#new#tearOff'](S, T, iterable, $function) {
        if (iterable == null) dart.nullFailed(I[48], 390, 45, "iterable");
        if ($function == null) dart.nullFailed(I[48], 390, 57, "function");
        return new (_internal.EfficientLengthMappedIterable$(S, T)).new(iterable, $function);
      }
    }
    (EfficientLengthMappedIterable.new = function(iterable, $function) {
      if (iterable == null) dart.nullFailed(I[48], 390, 45, "iterable");
      if ($function == null) dart.nullFailed(I[48], 390, 57, "function");
      this.$ti = this.$ti || __t$EfficientLengthMappedIterableOfS$T();
      dart.global.Object.getPrototypeOf(EfficientLengthMappedIterable).__.call(this, iterable, $function);
      ;
    }).prototype = EfficientLengthMappedIterable.prototype;
    dart.addRtiResources(EfficientLengthMappedIterable, ["_internal|EfficientLengthMappedIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setLibraryUri(EfficientLengthMappedIterable, I[36]);
    return EfficientLengthMappedIterable;
  });
  _internal.EfficientLengthMappedIterable = _internal.EfficientLengthMappedIterable$();
  var _iterator$ = dart.privateName(_internal, "_iterator");
  _internal.MappedIterator$ = dart.generic((S, T) => {
    var __t$MappedIteratorOfS$T = () => (__t$MappedIteratorOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|MappedIterator<1,2>")))();
    var __t$IteratorOfS = () => (__t$IteratorOfS = dart.constFn(S[_eval]("core|Iterator<0>")))();
    var __t$SToT = () => (__t$SToT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("2(1)")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    class MappedIterator extends core.Object {
      static ['_#new#tearOff'](S, T, _iterator, _f) {
        if (_iterator == null) dart.nullFailed(I[48], 399, 23, "_iterator");
        if (_f == null) dart.nullFailed(I[48], 399, 39, "_f");
        return new (_internal.MappedIterator$(S, T)).new(_iterator, _f);
      }
      moveNext() {
        let t$3664;
        if (dart.test(this[_iterator$].moveNext())) {
          this[_current$] = (t$3664 = this[_iterator$].current, this[_f$](t$3664));
          return true;
        }
        this[_current$] = null;
        return false;
      }
      get current() {
        return T[_as](this[_current$]);
      }
    }
    (MappedIterator.new = function(_iterator, _f) {
      if (_iterator == null) dart.nullFailed(I[48], 399, 23, "_iterator");
      if (_f == null) dart.nullFailed(I[48], 399, 39, "_f");
      this[_current$] = null;
      this[_iterator$] = _iterator;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$MappedIteratorOfS$T();
      ;
    }).prototype = MappedIterator.prototype;
    dart.addRtiResources(MappedIterator, ["_internal|MappedIterator", "core|Iterator"]);
    dart.setMethodSignature(MappedIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(MappedIterator))));
    dart.setGetterSignature(MappedIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(MappedIterator))));
    dart.setLibraryUri(MappedIterator, I[36]);
    dart.setFieldSignature(MappedIterator, () => dart.global.Object.setPrototypeOf({
      [_current$]: {type: __t$TN(), isConst: false, isFinal: false},
      [_iterator$]: {type: __t$IteratorOfS(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$SToT(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(MappedIterator))));
    return MappedIterator;
  });
  _internal.MappedIterator = _internal.MappedIterator$();
  _internal.MappedListIterable$ = dart.generic((S, T) => {
    var __t$MappedListIterableOfS$T = () => (__t$MappedListIterableOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|MappedListIterable<1,2>")))();
    var __t$IterableOfS = () => (__t$IterableOfS = dart.constFn(S[_eval]("core|Iterable<0>")))();
    var __t$SToT = () => (__t$SToT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("2(1)")))();
    var __t$ListIterableOfT = () => (__t$ListIterableOfT = dart.constFn(_internal.ListIterable$(T)))();
    class MappedListIterable extends __t$ListIterableOfT() {
      static ['_#new#tearOff'](S, T, _source, _f) {
        if (_source == null) dart.nullFailed(I[48], 422, 27, "_source");
        if (_f == null) dart.nullFailed(I[48], 422, 41, "_f");
        return new (_internal.MappedListIterable$(S, T)).new(_source, _f);
      }
      get length() {
        return this[_source$][$length];
      }
      elementAt(index) {
        let t$3664;
        if (index == null) dart.nullFailed(I[48], 425, 19, "index");
        t$3664 = this[_source$][$elementAt](index);
        return this[_f$](t$3664);
      }
    }
    (MappedListIterable.new = function(_source, _f) {
      if (_source == null) dart.nullFailed(I[48], 422, 27, "_source");
      if (_f == null) dart.nullFailed(I[48], 422, 41, "_f");
      this[_source$] = _source;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$MappedListIterableOfS$T();
      dart.global.Object.getPrototypeOf(MappedListIterable).new.call(this);
      ;
    }).prototype = MappedListIterable.prototype;
    dart.addRtiResources(MappedListIterable, ["_internal|MappedListIterable"]);
    dart.setLibraryUri(MappedListIterable, I[36]);
    dart.setFieldSignature(MappedListIterable, () => dart.global.Object.setPrototypeOf({
      [_source$]: {type: __t$IterableOfS(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$SToT(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(MappedListIterable))));
    dart.defineExtensionMethods(MappedListIterable, ['elementAt']);
    dart.defineExtensionAccessors(MappedListIterable, ['length']);
    return MappedListIterable;
  });
  _internal.MappedListIterable = _internal.MappedListIterable$();
  _internal.WhereIterable$ = dart.generic(E => {
    var __t$WhereIterableOfE = () => (__t$WhereIterableOfE = dart.constFn(E[_eval]("_internal|WhereIterable<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$ETobool = () => (__t$ETobool = dart.constFn(E[_eval]("core|bool(0)")))();
    var __t$WhereIteratorOfE = () => (__t$WhereIteratorOfE = dart.constFn(_internal.WhereIterator$(E)))();
    var __t$IterableOfE$ = () => (__t$IterableOfE$ = dart.constFn(core.Iterable$(E)))();
    class WhereIterable extends __t$IterableOfE$() {
      static ['_#new#tearOff'](E, _iterable, _f) {
        if (_iterable == null) dart.nullFailed(I[48], 434, 22, "_iterable");
        if (_f == null) dart.nullFailed(I[48], 434, 38, "_f");
        return new (_internal.WhereIterable$(E)).new(_iterable, _f);
      }
      get iterator() {
        return new (__t$WhereIteratorOfE()).new(this[_iterable$][$iterator], this[_f$]);
      }
      map(T, toElement) {
        if (toElement == null) dart.nullFailed(I[48], 439, 24, "toElement");
        return new (_internal.MappedIterable$(E, T)).__(this, toElement);
      }
    }
    (WhereIterable.new = function(_iterable, _f) {
      if (_iterable == null) dart.nullFailed(I[48], 434, 22, "_iterable");
      if (_f == null) dart.nullFailed(I[48], 434, 38, "_f");
      this[_iterable$] = _iterable;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$WhereIterableOfE();
      dart.global.Object.getPrototypeOf(WhereIterable).new.call(this);
      ;
    }).prototype = WhereIterable.prototype;
    dart.addRtiResources(WhereIterable, ["_internal|WhereIterable"]);
    dart.setGetterSignature(WhereIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(WhereIterable))));
    dart.setLibraryUri(WhereIterable, I[36]);
    dart.setFieldSignature(WhereIterable, () => dart.global.Object.setPrototypeOf({
      [_iterable$]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$ETobool(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(WhereIterable))));
    dart.defineExtensionMethods(WhereIterable, ['map']);
    dart.defineExtensionAccessors(WhereIterable, ['iterator']);
    return WhereIterable;
  });
  _internal.WhereIterable = _internal.WhereIterable$();
  _internal.WhereIterator$ = dart.generic(E => {
    var __t$WhereIteratorOfE = () => (__t$WhereIteratorOfE = dart.constFn(E[_eval]("_internal|WhereIterator<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$ETobool = () => (__t$ETobool = dart.constFn(E[_eval]("core|bool(0)")))();
    class WhereIterator extends core.Object {
      static ['_#new#tearOff'](E, _iterator, _f) {
        if (_iterator == null) dart.nullFailed(I[48], 447, 22, "_iterator");
        if (_f == null) dart.nullFailed(I[48], 447, 38, "_f");
        return new (_internal.WhereIterator$(E)).new(_iterator, _f);
      }
      moveNext() {
        let t$3664;
        while (dart.test(this[_iterator$].moveNext())) {
          if (dart.test((t$3664 = this[_iterator$].current, this[_f$](t$3664)))) {
            return true;
          }
        }
        return false;
      }
      get current() {
        return this[_iterator$].current;
      }
    }
    (WhereIterator.new = function(_iterator, _f) {
      if (_iterator == null) dart.nullFailed(I[48], 447, 22, "_iterator");
      if (_f == null) dart.nullFailed(I[48], 447, 38, "_f");
      this[_iterator$] = _iterator;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$WhereIteratorOfE();
      ;
    }).prototype = WhereIterator.prototype;
    dart.addRtiResources(WhereIterator, ["_internal|WhereIterator", "core|Iterator"]);
    dart.setMethodSignature(WhereIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(WhereIterator))));
    dart.setGetterSignature(WhereIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(WhereIterator))));
    dart.setLibraryUri(WhereIterator, I[36]);
    dart.setFieldSignature(WhereIterator, () => dart.global.Object.setPrototypeOf({
      [_iterator$]: {type: __t$IteratorOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$ETobool(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(WhereIterator))));
    return WhereIterator;
  });
  _internal.WhereIterator = _internal.WhereIterator$();
  _internal.ExpandIterable$ = dart.generic((S, T) => {
    var __t$ExpandIterableOfS$T = () => (__t$ExpandIterableOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|ExpandIterable<1,2>")))();
    var __t$IterableOfS = () => (__t$IterableOfS = dart.constFn(S[_eval]("core|Iterable<0>")))();
    var __t$SToIterableOfT = () => (__t$SToIterableOfT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("core|Iterable<2>(1)")))();
    var __t$IteratorOfT = () => (__t$IteratorOfT = dart.constFn(T[_eval]("core|Iterator<0>")))();
    var __t$ExpandIteratorOfS$T = () => (__t$ExpandIteratorOfS$T = dart.constFn(_internal.ExpandIterator$(S, T)))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(core.Iterable$(T)))();
    class ExpandIterable extends __t$IterableOfT() {
      static ['_#new#tearOff'](S, T, _iterable, _f) {
        if (_iterable == null) dart.nullFailed(I[48], 467, 23, "_iterable");
        if (_f == null) dart.nullFailed(I[48], 467, 39, "_f");
        return new (_internal.ExpandIterable$(S, T)).new(_iterable, _f);
      }
      get iterator() {
        return new (__t$ExpandIteratorOfS$T()).new(this[_iterable$][$iterator], this[_f$]);
      }
    }
    (ExpandIterable.new = function(_iterable, _f) {
      if (_iterable == null) dart.nullFailed(I[48], 467, 23, "_iterable");
      if (_f == null) dart.nullFailed(I[48], 467, 39, "_f");
      this[_iterable$] = _iterable;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$ExpandIterableOfS$T();
      dart.global.Object.getPrototypeOf(ExpandIterable).new.call(this);
      ;
    }).prototype = ExpandIterable.prototype;
    dart.addRtiResources(ExpandIterable, ["_internal|ExpandIterable"]);
    dart.setGetterSignature(ExpandIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfT(),
      [$iterator]: __t$IteratorOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(ExpandIterable))));
    dart.setLibraryUri(ExpandIterable, I[36]);
    dart.setFieldSignature(ExpandIterable, () => dart.global.Object.setPrototypeOf({
      [_iterable$]: {type: __t$IterableOfS(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$SToIterableOfT(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(ExpandIterable))));
    dart.defineExtensionAccessors(ExpandIterable, ['iterator']);
    return ExpandIterable;
  });
  _internal.ExpandIterable = _internal.ExpandIterable$();
  var _currentExpansion = dart.privateName(_internal, "_currentExpansion");
  _internal.ExpandIterator$ = dart.generic((S, T) => {
    var __t$ExpandIteratorOfS$T = () => (__t$ExpandIteratorOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("_internal|ExpandIterator<1,2>")))();
    var __t$IteratorOfS = () => (__t$IteratorOfS = dart.constFn(S[_eval]("core|Iterator<0>")))();
    var __t$SToIterableOfT = () => (__t$SToIterableOfT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("core|Iterable<2>(1)")))();
    var __t$IteratorNOfT = () => (__t$IteratorNOfT = dart.constFn(T[_eval]("core|Iterator<0>?")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    class ExpandIterator extends core.Object {
      static ['_#new#tearOff'](S, T, _iterator, _f) {
        if (_iterator == null) dart.nullFailed(I[48], 481, 23, "_iterator");
        if (_f == null) dart.nullFailed(I[48], 481, 39, "_f");
        return new (_internal.ExpandIterator$(S, T)).new(_iterator, _f);
      }
      get current() {
        return T[_as](this[_current$]);
      }
      moveNext() {
        let t$3664;
        if (this[_currentExpansion] == null) return false;
        while (!dart.test(dart.nullCheck(this[_currentExpansion]).moveNext())) {
          this[_current$] = null;
          if (dart.test(this[_iterator$].moveNext())) {
            this[_currentExpansion] = null;
            this[_currentExpansion] = (t$3664 = this[_iterator$].current, this[_f$](t$3664))[$iterator];
          } else {
            return false;
          }
        }
        this[_current$] = dart.nullCheck(this[_currentExpansion]).current;
        return true;
      }
    }
    (ExpandIterator.new = function(_iterator, _f) {
      if (_iterator == null) dart.nullFailed(I[48], 481, 23, "_iterator");
      if (_f == null) dart.nullFailed(I[48], 481, 39, "_f");
      this[_currentExpansion] = C[55] || CT.C55;
      this[_current$] = null;
      this[_iterator$] = _iterator;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$ExpandIteratorOfS$T();
      ;
    }).prototype = ExpandIterator.prototype;
    dart.addRtiResources(ExpandIterator, ["_internal|ExpandIterator", "core|Iterator"]);
    dart.setMethodSignature(ExpandIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(ExpandIterator))));
    dart.setGetterSignature(ExpandIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(ExpandIterator))));
    dart.setLibraryUri(ExpandIterator, I[36]);
    dart.setFieldSignature(ExpandIterator, () => dart.global.Object.setPrototypeOf({
      [_iterator$]: {type: __t$IteratorOfS(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$SToIterableOfT(), isConst: false, isFinal: true},
      [_currentExpansion]: {type: __t$IteratorNOfT(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_current$]: {type: __t$TN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(ExpandIterator))));
    return ExpandIterator;
  });
  _internal.ExpandIterator = _internal.ExpandIterator$();
  var _takeCount$ = dart.privateName(_internal, "_takeCount");
  _internal.TakeIterable$ = dart.generic(E => {
    var __t$TakeIterableOfE = () => (__t$TakeIterableOfE = dart.constFn(E[_eval]("_internal|TakeIterable<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$TakeIteratorOfE = () => (__t$TakeIteratorOfE = dart.constFn(_internal.TakeIterator$(E)))();
    var __t$IterableOfE$ = () => (__t$IterableOfE$ = dart.constFn(core.Iterable$(E)))();
    class TakeIterable extends __t$IterableOfE$() {
      static new(iterable, takeCount) {
        if (iterable == null) dart.nullFailed(I[48], 507, 36, "iterable");
        if (takeCount == null) dart.nullFailed(I[48], 507, 50, "takeCount");
        core.ArgumentError.checkNotNull(T$.int(), takeCount, "takeCount");
        core.RangeError.checkNotNegative(takeCount, "takeCount");
        if (T$.EfficientLengthIterable()[_is](iterable)) {
          return new (_internal.EfficientLengthTakeIterable$(E)).new(iterable, takeCount);
        }
        return new (_internal.TakeIterable$(E)).__(iterable, takeCount);
      }
      static ['_#new#tearOff'](E, iterable, takeCount) {
        if (iterable == null) dart.nullFailed(I[48], 507, 36, "iterable");
        if (takeCount == null) dart.nullFailed(I[48], 507, 50, "takeCount");
        return _internal.TakeIterable$(E).new(iterable, takeCount);
      }
      static ['_#_#tearOff'](E, _iterable, _takeCount) {
        if (_iterable == null) dart.nullFailed(I[48], 516, 23, "_iterable");
        if (_takeCount == null) dart.nullFailed(I[48], 516, 39, "_takeCount");
        return new (_internal.TakeIterable$(E)).__(_iterable, _takeCount);
      }
      get iterator() {
        return new (__t$TakeIteratorOfE()).new(this[_iterable$][$iterator], this[_takeCount$]);
      }
    }
    (TakeIterable.__ = function(_iterable, _takeCount) {
      if (_iterable == null) dart.nullFailed(I[48], 516, 23, "_iterable");
      if (_takeCount == null) dart.nullFailed(I[48], 516, 39, "_takeCount");
      this[_iterable$] = _iterable;
      this[_takeCount$] = _takeCount;
      this.$ti = this.$ti || __t$TakeIterableOfE();
      dart.global.Object.getPrototypeOf(TakeIterable).new.call(this);
      ;
    }).prototype = TakeIterable.prototype;
    dart.addRtiResources(TakeIterable, ["_internal|TakeIterable"]);
    dart.setStaticMethodSignature(TakeIterable, () => ['new']);
    dart.setGetterSignature(TakeIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(TakeIterable))));
    dart.setLibraryUri(TakeIterable, I[36]);
    dart.setFieldSignature(TakeIterable, () => dart.global.Object.setPrototypeOf({
      [_iterable$]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_takeCount$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(TakeIterable))));
    dart.defineExtensionAccessors(TakeIterable, ['iterator']);
    return TakeIterable;
  });
  _internal.TakeIterable = _internal.TakeIterable$();
  _internal.EfficientLengthTakeIterable$ = dart.generic(E => {
    var __t$EfficientLengthTakeIterableOfE = () => (__t$EfficientLengthTakeIterableOfE = dart.constFn(E[_eval]("_internal|EfficientLengthTakeIterable<0>")))();
    var __t$TakeIterableOfE = () => (__t$TakeIterableOfE = dart.constFn(_internal.TakeIterable$(E)))();
    class EfficientLengthTakeIterable extends __t$TakeIterableOfE() {
      static ['_#new#tearOff'](E, iterable, takeCount) {
        if (iterable == null) dart.nullFailed(I[48], 525, 43, "iterable");
        if (takeCount == null) dart.nullFailed(I[48], 525, 57, "takeCount");
        return new (_internal.EfficientLengthTakeIterable$(E)).new(iterable, takeCount);
      }
      get length() {
        let iterableLength = this[_iterable$][$length];
        if (dart.notNull(iterableLength) > dart.notNull(this[_takeCount$])) return this[_takeCount$];
        return iterableLength;
      }
    }
    (EfficientLengthTakeIterable.new = function(iterable, takeCount) {
      if (iterable == null) dart.nullFailed(I[48], 525, 43, "iterable");
      if (takeCount == null) dart.nullFailed(I[48], 525, 57, "takeCount");
      this.$ti = this.$ti || __t$EfficientLengthTakeIterableOfE();
      dart.global.Object.getPrototypeOf(EfficientLengthTakeIterable).__.call(this, iterable, takeCount);
      ;
    }).prototype = EfficientLengthTakeIterable.prototype;
    dart.addRtiResources(EfficientLengthTakeIterable, ["_internal|EfficientLengthTakeIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setLibraryUri(EfficientLengthTakeIterable, I[36]);
    dart.defineExtensionAccessors(EfficientLengthTakeIterable, ['length']);
    return EfficientLengthTakeIterable;
  });
  _internal.EfficientLengthTakeIterable = _internal.EfficientLengthTakeIterable$();
  var _remaining$ = dart.privateName(_internal, "_remaining");
  _internal.TakeIterator$ = dart.generic(E => {
    var __t$TakeIteratorOfE = () => (__t$TakeIteratorOfE = dart.constFn(E[_eval]("_internal|TakeIterator<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    class TakeIterator extends core.Object {
      static ['_#new#tearOff'](E, _iterator, _remaining) {
        if (_iterator == null) dart.nullFailed(I[48], 539, 21, "_iterator");
        if (_remaining == null) dart.nullFailed(I[48], 539, 37, "_remaining");
        return new (_internal.TakeIterator$(E)).new(_iterator, _remaining);
      }
      moveNext() {
        this[_remaining$] = dart.notNull(this[_remaining$]) - 1;
        if (dart.notNull(this[_remaining$]) >= 0) {
          return this[_iterator$].moveNext();
        }
        this[_remaining$] = -1;
        return false;
      }
      get current() {
        if (dart.notNull(this[_remaining$]) < 0) return E[_as](null);
        return this[_iterator$].current;
      }
    }
    (TakeIterator.new = function(_iterator, _remaining) {
      if (_iterator == null) dart.nullFailed(I[48], 539, 21, "_iterator");
      if (_remaining == null) dart.nullFailed(I[48], 539, 37, "_remaining");
      this[_iterator$] = _iterator;
      this[_remaining$] = _remaining;
      this.$ti = this.$ti || __t$TakeIteratorOfE();
      if (!(dart.notNull(this[_remaining$]) >= 0)) dart.assertFailed(null, I[48], 540, 12, "_remaining >= 0");
    }).prototype = TakeIterator.prototype;
    dart.addRtiResources(TakeIterator, ["_internal|TakeIterator", "core|Iterator"]);
    dart.setMethodSignature(TakeIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(TakeIterator))));
    dart.setGetterSignature(TakeIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(TakeIterator))));
    dart.setLibraryUri(TakeIterator, I[36]);
    dart.setFieldSignature(TakeIterator, () => dart.global.Object.setPrototypeOf({
      [_iterator$]: {type: __t$IteratorOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_remaining$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(TakeIterator))));
    return TakeIterator;
  });
  _internal.TakeIterator = _internal.TakeIterator$();
  _internal.TakeWhileIterable$ = dart.generic(E => {
    var __t$TakeWhileIterableOfE = () => (__t$TakeWhileIterableOfE = dart.constFn(E[_eval]("_internal|TakeWhileIterable<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$ETobool = () => (__t$ETobool = dart.constFn(E[_eval]("core|bool(0)")))();
    var __t$TakeWhileIteratorOfE = () => (__t$TakeWhileIteratorOfE = dart.constFn(_internal.TakeWhileIterator$(E)))();
    var __t$IterableOfE$ = () => (__t$IterableOfE$ = dart.constFn(core.Iterable$(E)))();
    class TakeWhileIterable extends __t$IterableOfE$() {
      static ['_#new#tearOff'](E, _iterable, _f) {
        if (_iterable == null) dart.nullFailed(I[48], 566, 26, "_iterable");
        if (_f == null) dart.nullFailed(I[48], 566, 42, "_f");
        return new (_internal.TakeWhileIterable$(E)).new(_iterable, _f);
      }
      get iterator() {
        return new (__t$TakeWhileIteratorOfE()).new(this[_iterable$][$iterator], this[_f$]);
      }
    }
    (TakeWhileIterable.new = function(_iterable, _f) {
      if (_iterable == null) dart.nullFailed(I[48], 566, 26, "_iterable");
      if (_f == null) dart.nullFailed(I[48], 566, 42, "_f");
      this[_iterable$] = _iterable;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$TakeWhileIterableOfE();
      dart.global.Object.getPrototypeOf(TakeWhileIterable).new.call(this);
      ;
    }).prototype = TakeWhileIterable.prototype;
    dart.addRtiResources(TakeWhileIterable, ["_internal|TakeWhileIterable"]);
    dart.setGetterSignature(TakeWhileIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(TakeWhileIterable))));
    dart.setLibraryUri(TakeWhileIterable, I[36]);
    dart.setFieldSignature(TakeWhileIterable, () => dart.global.Object.setPrototypeOf({
      [_iterable$]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$ETobool(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(TakeWhileIterable))));
    dart.defineExtensionAccessors(TakeWhileIterable, ['iterator']);
    return TakeWhileIterable;
  });
  _internal.TakeWhileIterable = _internal.TakeWhileIterable$();
  var _isFinished = dart.privateName(_internal, "_isFinished");
  _internal.TakeWhileIterator$ = dart.generic(E => {
    var __t$TakeWhileIteratorOfE = () => (__t$TakeWhileIteratorOfE = dart.constFn(E[_eval]("_internal|TakeWhileIterator<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$ETobool = () => (__t$ETobool = dart.constFn(E[_eval]("core|bool(0)")))();
    class TakeWhileIterator extends core.Object {
      static ['_#new#tearOff'](E, _iterator, _f) {
        if (_iterator == null) dart.nullFailed(I[48], 578, 26, "_iterator");
        if (_f == null) dart.nullFailed(I[48], 578, 42, "_f");
        return new (_internal.TakeWhileIterator$(E)).new(_iterator, _f);
      }
      moveNext() {
        let t$3664;
        if (dart.test(this[_isFinished])) return false;
        if (!dart.test(this[_iterator$].moveNext()) || !dart.test((t$3664 = this[_iterator$].current, this[_f$](t$3664)))) {
          this[_isFinished] = true;
          return false;
        }
        return true;
      }
      get current() {
        if (dart.test(this[_isFinished])) return E[_as](null);
        return this[_iterator$].current;
      }
    }
    (TakeWhileIterator.new = function(_iterator, _f) {
      if (_iterator == null) dart.nullFailed(I[48], 578, 26, "_iterator");
      if (_f == null) dart.nullFailed(I[48], 578, 42, "_f");
      this[_isFinished] = false;
      this[_iterator$] = _iterator;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$TakeWhileIteratorOfE();
      ;
    }).prototype = TakeWhileIterator.prototype;
    dart.addRtiResources(TakeWhileIterator, ["_internal|TakeWhileIterator", "core|Iterator"]);
    dart.setMethodSignature(TakeWhileIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(TakeWhileIterator))));
    dart.setGetterSignature(TakeWhileIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(TakeWhileIterator))));
    dart.setLibraryUri(TakeWhileIterator, I[36]);
    dart.setFieldSignature(TakeWhileIterator, () => dart.global.Object.setPrototypeOf({
      [_iterator$]: {type: __t$IteratorOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$ETobool(), isConst: false, isFinal: true},
      [_isFinished]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(TakeWhileIterator))));
    return TakeWhileIterator;
  });
  _internal.TakeWhileIterator = _internal.TakeWhileIterator$();
  var _skipCount$ = dart.privateName(_internal, "_skipCount");
  _internal.SkipIterable$ = dart.generic(E => {
    var __t$SkipIterableOfE = () => (__t$SkipIterableOfE = dart.constFn(E[_eval]("_internal|SkipIterable<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$SkipIterableOfE$ = () => (__t$SkipIterableOfE$ = dart.constFn(_internal.SkipIterable$(E)))();
    var __t$SkipIteratorOfE = () => (__t$SkipIteratorOfE = dart.constFn(_internal.SkipIterator$(E)))();
    var __t$IterableOfE$ = () => (__t$IterableOfE$ = dart.constFn(core.Iterable$(E)))();
    class SkipIterable extends __t$IterableOfE$() {
      static new(iterable, count) {
        if (iterable == null) dart.nullFailed(I[48], 599, 36, "iterable");
        if (count == null) dart.nullFailed(I[48], 599, 50, "count");
        if (T$.EfficientLengthIterable()[_is](iterable)) {
          return _internal.EfficientLengthSkipIterable$(E).new(iterable, count);
        }
        return new (_internal.SkipIterable$(E)).__(iterable, _internal._checkCount(count));
      }
      static ['_#new#tearOff'](E, iterable, count) {
        if (iterable == null) dart.nullFailed(I[48], 599, 36, "iterable");
        if (count == null) dart.nullFailed(I[48], 599, 50, "count");
        return _internal.SkipIterable$(E).new(iterable, count);
      }
      static ['_#_#tearOff'](E, _iterable, _skipCount) {
        if (_iterable == null) dart.nullFailed(I[48], 606, 23, "_iterable");
        if (_skipCount == null) dart.nullFailed(I[48], 606, 39, "_skipCount");
        return new (_internal.SkipIterable$(E)).__(_iterable, _skipCount);
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[48], 608, 24, "count");
        return new (__t$SkipIterableOfE$()).__(this[_iterable$], dart.notNull(this[_skipCount$]) + dart.notNull(_internal._checkCount(count)));
      }
      get iterator() {
        return new (__t$SkipIteratorOfE()).new(this[_iterable$][$iterator], this[_skipCount$]);
      }
    }
    (SkipIterable.__ = function(_iterable, _skipCount) {
      if (_iterable == null) dart.nullFailed(I[48], 606, 23, "_iterable");
      if (_skipCount == null) dart.nullFailed(I[48], 606, 39, "_skipCount");
      this[_iterable$] = _iterable;
      this[_skipCount$] = _skipCount;
      this.$ti = this.$ti || __t$SkipIterableOfE();
      dart.global.Object.getPrototypeOf(SkipIterable).new.call(this);
      ;
    }).prototype = SkipIterable.prototype;
    dart.addRtiResources(SkipIterable, ["_internal|SkipIterable"]);
    dart.setStaticMethodSignature(SkipIterable, () => ['new']);
    dart.setGetterSignature(SkipIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(SkipIterable))));
    dart.setLibraryUri(SkipIterable, I[36]);
    dart.setFieldSignature(SkipIterable, () => dart.global.Object.setPrototypeOf({
      [_iterable$]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_skipCount$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(SkipIterable))));
    dart.defineExtensionMethods(SkipIterable, ['skip']);
    dart.defineExtensionAccessors(SkipIterable, ['iterator']);
    return SkipIterable;
  });
  _internal.SkipIterable = _internal.SkipIterable$();
  _internal.EfficientLengthSkipIterable$ = dart.generic(E => {
    var __t$EfficientLengthSkipIterableOfE = () => (__t$EfficientLengthSkipIterableOfE = dart.constFn(E[_eval]("_internal|EfficientLengthSkipIterable<0>")))();
    var __t$EfficientLengthSkipIterableOfE$ = () => (__t$EfficientLengthSkipIterableOfE$ = dart.constFn(_internal.EfficientLengthSkipIterable$(E)))();
    var __t$SkipIterableOfE = () => (__t$SkipIterableOfE = dart.constFn(_internal.SkipIterable$(E)))();
    class EfficientLengthSkipIterable extends __t$SkipIterableOfE() {
      static new(iterable, count) {
        if (iterable == null) dart.nullFailed(I[48], 619, 51, "iterable");
        if (count == null) dart.nullFailed(I[48], 619, 65, "count");
        return new (_internal.EfficientLengthSkipIterable$(E)).__(iterable, _internal._checkCount(count));
      }
      static ['_#new#tearOff'](E, iterable, count) {
        if (iterable == null) dart.nullFailed(I[48], 619, 51, "iterable");
        if (count == null) dart.nullFailed(I[48], 619, 65, "count");
        return _internal.EfficientLengthSkipIterable$(E).new(iterable, count);
      }
      static ['_#_#tearOff'](E, iterable, count) {
        if (iterable == null) dart.nullFailed(I[48], 623, 45, "iterable");
        if (count == null) dart.nullFailed(I[48], 623, 59, "count");
        return new (_internal.EfficientLengthSkipIterable$(E)).__(iterable, count);
      }
      get length() {
        let length = dart.notNull(this[_iterable$][$length]) - dart.notNull(this[_skipCount$]);
        if (length >= 0) return length;
        return 0;
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[48], 632, 24, "count");
        return new (__t$EfficientLengthSkipIterableOfE$()).__(this[_iterable$], dart.notNull(this[_skipCount$]) + dart.notNull(_internal._checkCount(count)));
      }
    }
    (EfficientLengthSkipIterable.__ = function(iterable, count) {
      if (iterable == null) dart.nullFailed(I[48], 623, 45, "iterable");
      if (count == null) dart.nullFailed(I[48], 623, 59, "count");
      this.$ti = this.$ti || __t$EfficientLengthSkipIterableOfE();
      dart.global.Object.getPrototypeOf(EfficientLengthSkipIterable).__.call(this, iterable, count);
      ;
    }).prototype = EfficientLengthSkipIterable.prototype;
    dart.addRtiResources(EfficientLengthSkipIterable, ["_internal|EfficientLengthSkipIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setStaticMethodSignature(EfficientLengthSkipIterable, () => ['new']);
    dart.setLibraryUri(EfficientLengthSkipIterable, I[36]);
    dart.defineExtensionMethods(EfficientLengthSkipIterable, ['skip']);
    dart.defineExtensionAccessors(EfficientLengthSkipIterable, ['length']);
    return EfficientLengthSkipIterable;
  });
  _internal.EfficientLengthSkipIterable = _internal.EfficientLengthSkipIterable$();
  _internal.SkipIterator$ = dart.generic(E => {
    var __t$SkipIteratorOfE = () => (__t$SkipIteratorOfE = dart.constFn(E[_eval]("_internal|SkipIterator<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    class SkipIterator extends core.Object {
      static ['_#new#tearOff'](E, _iterator, _skipCount) {
        if (_iterator == null) dart.nullFailed(I[48], 648, 21, "_iterator");
        if (_skipCount == null) dart.nullFailed(I[48], 648, 37, "_skipCount");
        return new (_internal.SkipIterator$(E)).new(_iterator, _skipCount);
      }
      moveNext() {
        for (let i = 0; i < dart.notNull(this[_skipCount$]); i = i + 1)
          this[_iterator$].moveNext();
        this[_skipCount$] = 0;
        return this[_iterator$].moveNext();
      }
      get current() {
        return this[_iterator$].current;
      }
    }
    (SkipIterator.new = function(_iterator, _skipCount) {
      if (_iterator == null) dart.nullFailed(I[48], 648, 21, "_iterator");
      if (_skipCount == null) dart.nullFailed(I[48], 648, 37, "_skipCount");
      this[_iterator$] = _iterator;
      this[_skipCount$] = _skipCount;
      this.$ti = this.$ti || __t$SkipIteratorOfE();
      if (!(dart.notNull(this[_skipCount$]) >= 0)) dart.assertFailed(null, I[48], 649, 12, "_skipCount >= 0");
    }).prototype = SkipIterator.prototype;
    dart.addRtiResources(SkipIterator, ["_internal|SkipIterator", "core|Iterator"]);
    dart.setMethodSignature(SkipIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(SkipIterator))));
    dart.setGetterSignature(SkipIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(SkipIterator))));
    dart.setLibraryUri(SkipIterator, I[36]);
    dart.setFieldSignature(SkipIterator, () => dart.global.Object.setPrototypeOf({
      [_iterator$]: {type: __t$IteratorOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_skipCount$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(SkipIterator))));
    return SkipIterator;
  });
  _internal.SkipIterator = _internal.SkipIterator$();
  _internal.SkipWhileIterable$ = dart.generic(E => {
    var __t$SkipWhileIterableOfE = () => (__t$SkipWhileIterableOfE = dart.constFn(E[_eval]("_internal|SkipWhileIterable<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$ETobool = () => (__t$ETobool = dart.constFn(E[_eval]("core|bool(0)")))();
    var __t$SkipWhileIteratorOfE = () => (__t$SkipWhileIteratorOfE = dart.constFn(_internal.SkipWhileIterator$(E)))();
    var __t$IterableOfE$ = () => (__t$IterableOfE$ = dart.constFn(core.Iterable$(E)))();
    class SkipWhileIterable extends __t$IterableOfE$() {
      static ['_#new#tearOff'](E, _iterable, _f) {
        if (_iterable == null) dart.nullFailed(I[48], 665, 26, "_iterable");
        if (_f == null) dart.nullFailed(I[48], 665, 42, "_f");
        return new (_internal.SkipWhileIterable$(E)).new(_iterable, _f);
      }
      get iterator() {
        return new (__t$SkipWhileIteratorOfE()).new(this[_iterable$][$iterator], this[_f$]);
      }
    }
    (SkipWhileIterable.new = function(_iterable, _f) {
      if (_iterable == null) dart.nullFailed(I[48], 665, 26, "_iterable");
      if (_f == null) dart.nullFailed(I[48], 665, 42, "_f");
      this[_iterable$] = _iterable;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$SkipWhileIterableOfE();
      dart.global.Object.getPrototypeOf(SkipWhileIterable).new.call(this);
      ;
    }).prototype = SkipWhileIterable.prototype;
    dart.addRtiResources(SkipWhileIterable, ["_internal|SkipWhileIterable"]);
    dart.setGetterSignature(SkipWhileIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(SkipWhileIterable))));
    dart.setLibraryUri(SkipWhileIterable, I[36]);
    dart.setFieldSignature(SkipWhileIterable, () => dart.global.Object.setPrototypeOf({
      [_iterable$]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$ETobool(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(SkipWhileIterable))));
    dart.defineExtensionAccessors(SkipWhileIterable, ['iterator']);
    return SkipWhileIterable;
  });
  _internal.SkipWhileIterable = _internal.SkipWhileIterable$();
  var _hasSkipped = dart.privateName(_internal, "_hasSkipped");
  _internal.SkipWhileIterator$ = dart.generic(E => {
    var __t$SkipWhileIteratorOfE = () => (__t$SkipWhileIteratorOfE = dart.constFn(E[_eval]("_internal|SkipWhileIterator<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$ETobool = () => (__t$ETobool = dart.constFn(E[_eval]("core|bool(0)")))();
    class SkipWhileIterator extends core.Object {
      static ['_#new#tearOff'](E, _iterator, _f) {
        if (_iterator == null) dart.nullFailed(I[48], 677, 26, "_iterator");
        if (_f == null) dart.nullFailed(I[48], 677, 42, "_f");
        return new (_internal.SkipWhileIterator$(E)).new(_iterator, _f);
      }
      moveNext() {
        let t$3664;
        if (!dart.test(this[_hasSkipped])) {
          this[_hasSkipped] = true;
          while (dart.test(this[_iterator$].moveNext())) {
            if (!dart.test((t$3664 = this[_iterator$].current, this[_f$](t$3664)))) return true;
          }
        }
        return this[_iterator$].moveNext();
      }
      get current() {
        return this[_iterator$].current;
      }
    }
    (SkipWhileIterator.new = function(_iterator, _f) {
      if (_iterator == null) dart.nullFailed(I[48], 677, 26, "_iterator");
      if (_f == null) dart.nullFailed(I[48], 677, 42, "_f");
      this[_hasSkipped] = false;
      this[_iterator$] = _iterator;
      this[_f$] = _f;
      this.$ti = this.$ti || __t$SkipWhileIteratorOfE();
      ;
    }).prototype = SkipWhileIterator.prototype;
    dart.addRtiResources(SkipWhileIterator, ["_internal|SkipWhileIterator", "core|Iterator"]);
    dart.setMethodSignature(SkipWhileIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(SkipWhileIterator))));
    dart.setGetterSignature(SkipWhileIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(SkipWhileIterator))));
    dart.setLibraryUri(SkipWhileIterator, I[36]);
    dart.setFieldSignature(SkipWhileIterator, () => dart.global.Object.setPrototypeOf({
      [_iterator$]: {type: __t$IteratorOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_f$]: {type: __t$ETobool(), isConst: false, isFinal: true},
      [_hasSkipped]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(SkipWhileIterator))));
    return SkipWhileIterator;
  });
  _internal.SkipWhileIterator = _internal.SkipWhileIterator$();
  _internal.EmptyIterable$ = dart.generic(E => {
    var __t$EmptyIterableOfE = () => (__t$EmptyIterableOfE = dart.constFn(E[_eval]("_internal|EmptyIterable<0>")))();
    var __t$VoidToNE = () => (__t$VoidToNE = dart.constFn(E[_eval]("0()?")))();
    var __t$EAndEToE = () => (__t$EAndEToE = dart.constFn(E[_eval]("0(0,0)")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(core.List$(E)))();
    var __t$_HashSetOfE = () => (__t$_HashSetOfE = dart.constFn(collection._HashSet$(E)))();
    var __t$EfficientLengthIterableOfE = () => (__t$EfficientLengthIterableOfE = dart.constFn(_internal.EfficientLengthIterable$(E)))();
    class EmptyIterable extends __t$EfficientLengthIterableOfE() {
      static ['_#new#tearOff'](E) {
        return new (_internal.EmptyIterable$(E)).new();
      }
      get iterator() {
        return C[55] || CT.C55;
      }
      forEach(action) {
        if (action == null) dart.nullFailed(I[48], 701, 21, "action");
      }
      get isEmpty() {
        return true;
      }
      get length() {
        return 0;
      }
      get first() {
        dart.throw(_internal.IterableElementError.noElement());
      }
      get last() {
        dart.throw(_internal.IterableElementError.noElement());
      }
      get single() {
        dart.throw(_internal.IterableElementError.noElement());
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[48], 719, 19, "index");
        dart.throw(new core.RangeError.range(index, 0, 0, "index"));
      }
      contains(element) {
        return false;
      }
      every(test) {
        if (test == null) dart.nullFailed(I[48], 725, 19, "test");
        return true;
      }
      any(test) {
        if (test == null) dart.nullFailed(I[48], 727, 17, "test");
        return false;
      }
      firstWhere(test, opts) {
        if (test == null) dart.nullFailed(I[48], 729, 21, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      lastWhere(test, opts) {
        if (test == null) dart.nullFailed(I[48], 734, 20, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      singleWhere(test, opts) {
        if (test == null) dart.nullFailed(I[48], 739, 22, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      join(separator = "") {
        if (separator == null) dart.nullFailed(I[48], 744, 23, "separator");
        return "";
      }
      where(test) {
        if (test == null) dart.nullFailed(I[48], 746, 26, "test");
        return this;
      }
      map(T, toElement) {
        if (toElement == null) dart.nullFailed(I[48], 748, 24, "toElement");
        return new (_internal.EmptyIterable$(T)).new();
      }
      reduce(combine) {
        __t$EAndEToE()[_as](combine);
        if (combine == null) dart.nullFailed(I[48], 750, 14, "combine");
        dart.throw(_internal.IterableElementError.noElement());
      }
      fold(T, initialValue, combine) {
        if (combine == null) dart.nullFailed(I[48], 754, 31, "combine");
        return initialValue;
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[48], 758, 24, "count");
        core.RangeError.checkNotNegative(count, "count");
        return this;
      }
      skipWhile(test) {
        if (test == null) dart.nullFailed(I[48], 763, 30, "test");
        return this;
      }
      take(count) {
        if (count == null) dart.nullFailed(I[48], 765, 24, "count");
        core.RangeError.checkNotNegative(count, "count");
        return this;
      }
      takeWhile(test) {
        if (test == null) dart.nullFailed(I[48], 770, 30, "test");
        return this;
      }
      toList(opts) {
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[48], 772, 24, "growable");
        return __t$ListOfE().empty({growable: growable});
      }
      toSet() {
        return new (__t$_HashSetOfE()).new();
      }
    }
    (EmptyIterable.new = function() {
      this.$ti = this.$ti || __t$EmptyIterableOfE();
      dart.global.Object.getPrototypeOf(EmptyIterable).new.call(this);
      ;
    }).prototype = EmptyIterable.prototype;
    dart.addRtiResources(EmptyIterable, ["_internal|EmptyIterable", "_internal|HideEfficientLengthIterable", "core|Iterable"]);
    dart.setGetterSignature(EmptyIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(EmptyIterable))));
    dart.setLibraryUri(EmptyIterable, I[36]);
    dart.defineExtensionMethods(EmptyIterable, [
      'forEach',
      'elementAt',
      'contains',
      'every',
      'any',
      'firstWhere',
      'lastWhere',
      'singleWhere',
      'join',
      'where',
      'map',
      'reduce',
      'fold',
      'skip',
      'skipWhile',
      'take',
      'takeWhile',
      'toList',
      'toSet'
    ]);
    dart.defineExtensionAccessors(EmptyIterable, [
      'iterator',
      'isEmpty',
      'length',
      'first',
      'last',
      'single'
    ]);
    return EmptyIterable;
  });
  _internal.EmptyIterable = _internal.EmptyIterable$();
  _internal.EmptyIterator$ = dart.generic(E => {
    var __t$EmptyIteratorOfE = () => (__t$EmptyIteratorOfE = dart.constFn(E[_eval]("_internal|EmptyIterator<0>")))();
    class EmptyIterator extends core.Object {
      static ['_#new#tearOff'](E) {
        return new (_internal.EmptyIterator$(E)).new();
      }
      moveNext() {
        return false;
      }
      get current() {
        dart.throw(_internal.IterableElementError.noElement());
      }
    }
    (EmptyIterator.new = function() {
      this.$ti = this.$ti || __t$EmptyIteratorOfE();
      ;
    }).prototype = EmptyIterator.prototype;
    dart.addRtiResources(EmptyIterator, ["_internal|EmptyIterator", "core|Iterator"]);
    dart.setMethodSignature(EmptyIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(EmptyIterator))));
    dart.setGetterSignature(EmptyIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(EmptyIterator))));
    dart.setLibraryUri(EmptyIterator, I[36]);
    return EmptyIterator;
  });
  _internal.EmptyIterator = _internal.EmptyIterator$();
  var _first$ = dart.privateName(_internal, "_first");
  var _second$ = dart.privateName(_internal, "_second");
  _internal.FollowedByIterable$ = dart.generic(E => {
    var __t$FollowedByIterableOfE = () => (__t$FollowedByIterableOfE = dart.constFn(E[_eval]("_internal|FollowedByIterable<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$FollowedByIteratorOfE = () => (__t$FollowedByIteratorOfE = dart.constFn(_internal.FollowedByIterator$(E)))();
    var __t$IterableOfE$ = () => (__t$IterableOfE$ = dart.constFn(core.Iterable$(E)))();
    class FollowedByIterable extends __t$IterableOfE$() {
      static ['_#new#tearOff'](E, _first, _second) {
        if (_first == null) dart.nullFailed(I[48], 789, 27, "_first");
        if (_second == null) dart.nullFailed(I[48], 789, 40, "_second");
        return new (_internal.FollowedByIterable$(E)).new(_first, _second);
      }
      static firstEfficient(first, second) {
        if (first == null) dart.nullFailed(I[48], 792, 34, "first");
        if (second == null) dart.nullFailed(I[48], 792, 53, "second");
        if (E[_eval]("_internal|EfficientLengthIterable<0>")[_is](second)) {
          return new (_internal.EfficientLengthFollowedByIterable$(E)).new(first, second);
        }
        return new (_internal.FollowedByIterable$(E)).new(first, second);
      }
      static ['_#firstEfficient#tearOff'](E, first, second) {
        if (first == null) dart.nullFailed(I[48], 792, 34, "first");
        if (second == null) dart.nullFailed(I[48], 792, 53, "second");
        return _internal.FollowedByIterable$(E).firstEfficient(first, second);
      }
      get iterator() {
        return new (__t$FollowedByIteratorOfE()).new(this[_first$], this[_second$]);
      }
      get length() {
        return dart.notNull(this[_first$][$length]) + dart.notNull(this[_second$][$length]);
      }
      get isEmpty() {
        return dart.test(this[_first$][$isEmpty]) && dart.test(this[_second$][$isEmpty]);
      }
      get isNotEmpty() {
        return dart.test(this[_first$][$isNotEmpty]) || dart.test(this[_second$][$isNotEmpty]);
      }
      contains(value) {
        return dart.test(this[_first$][$contains](value)) || dart.test(this[_second$][$contains](value));
      }
      get first() {
        let iterator = this[_first$][$iterator];
        if (dart.test(iterator.moveNext())) return iterator.current;
        return this[_second$][$first];
      }
      get last() {
        let iterator = this[_second$][$iterator];
        if (dart.test(iterator.moveNext())) {
          let last = iterator.current;
          while (dart.test(iterator.moveNext()))
            last = iterator.current;
          return last;
        }
        return this[_first$][$last];
      }
    }
    (FollowedByIterable.new = function(_first, _second) {
      if (_first == null) dart.nullFailed(I[48], 789, 27, "_first");
      if (_second == null) dart.nullFailed(I[48], 789, 40, "_second");
      this[_first$] = _first;
      this[_second$] = _second;
      this.$ti = this.$ti || __t$FollowedByIterableOfE();
      dart.global.Object.getPrototypeOf(FollowedByIterable).new.call(this);
      ;
    }).prototype = FollowedByIterable.prototype;
    dart.addRtiResources(FollowedByIterable, ["_internal|FollowedByIterable"]);
    dart.setStaticMethodSignature(FollowedByIterable, () => ['firstEfficient']);
    dart.setGetterSignature(FollowedByIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(FollowedByIterable))));
    dart.setLibraryUri(FollowedByIterable, I[36]);
    dart.setFieldSignature(FollowedByIterable, () => dart.global.Object.setPrototypeOf({
      [_first$]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_second$]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(FollowedByIterable))));
    dart.defineExtensionMethods(FollowedByIterable, ['contains']);
    dart.defineExtensionAccessors(FollowedByIterable, [
      'iterator',
      'length',
      'isEmpty',
      'isNotEmpty',
      'first',
      'last'
    ]);
    return FollowedByIterable;
  });
  _internal.FollowedByIterable = _internal.FollowedByIterable$();
  _internal.EfficientLengthFollowedByIterable$ = dart.generic(E => {
    var __t$EfficientLengthFollowedByIterableOfE = () => (__t$EfficientLengthFollowedByIterableOfE = dart.constFn(E[_eval]("_internal|EfficientLengthFollowedByIterable<0>")))();
    var __t$FollowedByIterableOfE = () => (__t$FollowedByIterableOfE = dart.constFn(_internal.FollowedByIterable$(E)))();
    class EfficientLengthFollowedByIterable extends __t$FollowedByIterableOfE() {
      static ['_#new#tearOff'](E, first, second) {
        if (first == null) dart.nullFailed(I[48], 832, 34, "first");
        if (second == null) dart.nullFailed(I[48], 832, 68, "second");
        return new (_internal.EfficientLengthFollowedByIterable$(E)).new(first, second);
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[48], 835, 19, "index");
        let firstLength = this[_first$][$length];
        if (dart.notNull(index) < dart.notNull(firstLength)) return this[_first$][$elementAt](index);
        return this[_second$][$elementAt](dart.notNull(index) - dart.notNull(firstLength));
      }
      get first() {
        if (dart.test(this[_first$][$isNotEmpty])) return this[_first$][$first];
        return this[_second$][$first];
      }
      get last() {
        if (dart.test(this[_second$][$isNotEmpty])) return this[_second$][$last];
        return this[_first$][$last];
      }
    }
    (EfficientLengthFollowedByIterable.new = function(first, second) {
      if (first == null) dart.nullFailed(I[48], 832, 34, "first");
      if (second == null) dart.nullFailed(I[48], 832, 68, "second");
      this.$ti = this.$ti || __t$EfficientLengthFollowedByIterableOfE();
      dart.global.Object.getPrototypeOf(EfficientLengthFollowedByIterable).new.call(this, first, second);
      ;
    }).prototype = EfficientLengthFollowedByIterable.prototype;
    dart.addRtiResources(EfficientLengthFollowedByIterable, ["_internal|EfficientLengthFollowedByIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setLibraryUri(EfficientLengthFollowedByIterable, I[36]);
    dart.defineExtensionMethods(EfficientLengthFollowedByIterable, ['elementAt']);
    dart.defineExtensionAccessors(EfficientLengthFollowedByIterable, ['first', 'last']);
    return EfficientLengthFollowedByIterable;
  });
  _internal.EfficientLengthFollowedByIterable = _internal.EfficientLengthFollowedByIterable$();
  var _nextIterable$ = dart.privateName(_internal, "_nextIterable");
  var _currentIterator = dart.privateName(_internal, "_currentIterator");
  _internal.FollowedByIterator$ = dart.generic(E => {
    var __t$FollowedByIteratorOfE = () => (__t$FollowedByIteratorOfE = dart.constFn(E[_eval]("_internal|FollowedByIterator<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$IterableNOfE = () => (__t$IterableNOfE = dart.constFn(E[_eval]("core|Iterable<0>?")))();
    class FollowedByIterator extends core.Object {
      static ['_#new#tearOff'](E, first, _nextIterable) {
        if (first == null) dart.nullFailed(I[48], 856, 34, "first");
        return new (_internal.FollowedByIterator$(E)).new(first, _nextIterable);
      }
      moveNext() {
        if (dart.test(this[_currentIterator].moveNext())) return true;
        if (this[_nextIterable$] != null) {
          this[_currentIterator] = dart.nullCheck(this[_nextIterable$])[$iterator];
          this[_nextIterable$] = null;
          return this[_currentIterator].moveNext();
        }
        return false;
      }
      get current() {
        return this[_currentIterator].current;
      }
    }
    (FollowedByIterator.new = function(first, _nextIterable) {
      if (first == null) dart.nullFailed(I[48], 856, 34, "first");
      this[_nextIterable$] = _nextIterable;
      this[_currentIterator] = first[$iterator];
      this.$ti = this.$ti || __t$FollowedByIteratorOfE();
      ;
    }).prototype = FollowedByIterator.prototype;
    dart.addRtiResources(FollowedByIterator, ["_internal|FollowedByIterator", "core|Iterator"]);
    dart.setMethodSignature(FollowedByIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(FollowedByIterator))));
    dart.setGetterSignature(FollowedByIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(FollowedByIterator))));
    dart.setLibraryUri(FollowedByIterator, I[36]);
    dart.setFieldSignature(FollowedByIterator, () => dart.global.Object.setPrototypeOf({
      [_currentIterator]: {type: __t$IteratorOfE(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_nextIterable$]: {type: __t$IterableNOfE(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(FollowedByIterator))));
    return FollowedByIterator;
  });
  _internal.FollowedByIterator = _internal.FollowedByIterator$();
  _internal.WhereTypeIterable$ = dart.generic(T => {
    var __t$WhereTypeIterableOfT = () => (__t$WhereTypeIterableOfT = dart.constFn(T[_eval]("_internal|WhereTypeIterable<0>")))();
    var __t$IteratorOfT = () => (__t$IteratorOfT = dart.constFn(T[_eval]("core|Iterator<0>")))();
    var __t$WhereTypeIteratorOfT = () => (__t$WhereTypeIteratorOfT = dart.constFn(_internal.WhereTypeIterator$(T)))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(core.Iterable$(T)))();
    class WhereTypeIterable extends __t$IterableOfT() {
      static ['_#new#tearOff'](T, _source) {
        if (_source == null) dart.nullFailed(I[48], 874, 26, "_source");
        return new (_internal.WhereTypeIterable$(T)).new(_source);
      }
      get iterator() {
        return new (__t$WhereTypeIteratorOfT()).new(this[_source$][$iterator]);
      }
    }
    (WhereTypeIterable.new = function(_source) {
      if (_source == null) dart.nullFailed(I[48], 874, 26, "_source");
      this[_source$] = _source;
      this.$ti = this.$ti || __t$WhereTypeIterableOfT();
      dart.global.Object.getPrototypeOf(WhereTypeIterable).new.call(this);
      ;
    }).prototype = WhereTypeIterable.prototype;
    dart.addRtiResources(WhereTypeIterable, ["_internal|WhereTypeIterable"]);
    dart.setGetterSignature(WhereTypeIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfT(),
      [$iterator]: __t$IteratorOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(WhereTypeIterable))));
    dart.setLibraryUri(WhereTypeIterable, I[36]);
    dart.setFieldSignature(WhereTypeIterable, () => dart.global.Object.setPrototypeOf({[_source$]: {type: T$0.IterableOfObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(WhereTypeIterable))));
    dart.defineExtensionAccessors(WhereTypeIterable, ['iterator']);
    return WhereTypeIterable;
  });
  _internal.WhereTypeIterable = _internal.WhereTypeIterable$();
  _internal.WhereTypeIterator$ = dart.generic(T => {
    var __t$WhereTypeIteratorOfT = () => (__t$WhereTypeIteratorOfT = dart.constFn(T[_eval]("_internal|WhereTypeIterator<0>")))();
    class WhereTypeIterator extends core.Object {
      static ['_#new#tearOff'](T, _source) {
        if (_source == null) dart.nullFailed(I[48], 880, 26, "_source");
        return new (_internal.WhereTypeIterator$(T)).new(_source);
      }
      moveNext() {
        while (dart.test(this[_source$].moveNext())) {
          if (T[_is](this[_source$].current)) return true;
        }
        return false;
      }
      get current() {
        return T[_as](this[_source$].current);
      }
    }
    (WhereTypeIterator.new = function(_source) {
      if (_source == null) dart.nullFailed(I[48], 880, 26, "_source");
      this[_source$] = _source;
      this.$ti = this.$ti || __t$WhereTypeIteratorOfT();
      ;
    }).prototype = WhereTypeIterator.prototype;
    dart.addRtiResources(WhereTypeIterator, ["_internal|WhereTypeIterator", "core|Iterator"]);
    dart.setMethodSignature(WhereTypeIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(WhereTypeIterator))));
    dart.setGetterSignature(WhereTypeIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(WhereTypeIterator))));
    dart.setLibraryUri(WhereTypeIterator, I[36]);
    dart.setFieldSignature(WhereTypeIterator, () => dart.global.Object.setPrototypeOf({[_source$]: {type: T$0.IteratorOfObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(WhereTypeIterator))));
    return WhereTypeIterator;
  });
  _internal.WhereTypeIterator = _internal.WhereTypeIterator$();
  var _firstNonNull = dart.privateName(_internal, "_firstNonNull");
  _internal.NonNullsIterable$ = dart.generic(T => {
    var __t$NonNullsIterableOfT = () => (__t$NonNullsIterableOfT = dart.constFn(T[_eval]("_internal|NonNullsIterable<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    var __t$IteratorOfT = () => (__t$IteratorOfT = dart.constFn(T[_eval]("core|Iterator<0>")))();
    var __t$IterableOfTN = () => (__t$IterableOfTN = dart.constFn(T[_eval]("core|Iterable<0?>")))();
    var __t$NonNullsIteratorOfT = () => (__t$NonNullsIteratorOfT = dart.constFn(_internal.NonNullsIterator$(T)))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(core.Iterable$(T)))();
    class NonNullsIterable extends __t$IterableOfT() {
      static ['_#new#tearOff'](T, _source) {
        if (_source == null) dart.nullFailed(I[48], 897, 25, "_source");
        return new (_internal.NonNullsIterable$(T)).new(_source);
      }
      get [_firstNonNull]() {
        for (let element of this[_source$]) {
          if (element != null) return element;
        }
        return null;
      }
      get isEmpty() {
        return this[_firstNonNull] == null;
      }
      get isNotEmpty() {
        return this[_firstNonNull] != null;
      }
      get first() {
        let t$3664;
        t$3664 = this[_firstNonNull];
        return t$3664 == null ? dart.throw(_internal.IterableElementError.noElement()) : t$3664;
      }
      get iterator() {
        return new (__t$NonNullsIteratorOfT()).new(this[_source$][$iterator]);
      }
    }
    (NonNullsIterable.new = function(_source) {
      if (_source == null) dart.nullFailed(I[48], 897, 25, "_source");
      this[_source$] = _source;
      this.$ti = this.$ti || __t$NonNullsIterableOfT();
      dart.global.Object.getPrototypeOf(NonNullsIterable).new.call(this);
      ;
    }).prototype = NonNullsIterable.prototype;
    dart.addRtiResources(NonNullsIterable, ["_internal|NonNullsIterable"]);
    dart.setGetterSignature(NonNullsIterable, () => dart.global.Object.setPrototypeOf({
      [_firstNonNull]: __t$TN(),
      iterator: __t$IteratorOfT(),
      [$iterator]: __t$IteratorOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(NonNullsIterable))));
    dart.setLibraryUri(NonNullsIterable, I[36]);
    dart.setFieldSignature(NonNullsIterable, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$IterableOfTN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(NonNullsIterable))));
    dart.defineExtensionAccessors(NonNullsIterable, ['isEmpty', 'isNotEmpty', 'first', 'iterator']);
    return NonNullsIterable;
  });
  _internal.NonNullsIterable = _internal.NonNullsIterable$();
  _internal.NonNullsIterator$ = dart.generic(T => {
    var __t$NonNullsIteratorOfT = () => (__t$NonNullsIteratorOfT = dart.constFn(T[_eval]("_internal|NonNullsIterator<0>")))();
    var __t$IteratorOfTN = () => (__t$IteratorOfTN = dart.constFn(T[_eval]("core|Iterator<0?>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    class NonNullsIterator extends core.Object {
      static ['_#new#tearOff'](T, _source) {
        if (_source == null) dart.nullFailed(I[48], 917, 25, "_source");
        return new (_internal.NonNullsIterator$(T)).new(_source);
      }
      moveNext() {
        this[_current$] = null;
        while (dart.test(this[_source$].moveNext())) {
          let next = this[_source$].current;
          if (next != null) {
            this[_current$] = next;
            return true;
          }
        }
        return false;
      }
      get current() {
        let t$3664;
        t$3664 = this[_current$];
        return t$3664 == null ? dart.throw(_internal.IterableElementError.noElement()) : t$3664;
      }
    }
    (NonNullsIterator.new = function(_source) {
      if (_source == null) dart.nullFailed(I[48], 917, 25, "_source");
      this[_current$] = null;
      this[_source$] = _source;
      this.$ti = this.$ti || __t$NonNullsIteratorOfT();
      ;
    }).prototype = NonNullsIterator.prototype;
    dart.addRtiResources(NonNullsIterator, ["_internal|NonNullsIterator", "core|Iterator"]);
    dart.setMethodSignature(NonNullsIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(NonNullsIterator))));
    dart.setGetterSignature(NonNullsIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(NonNullsIterator))));
    dart.setLibraryUri(NonNullsIterator, I[36]);
    dart.setFieldSignature(NonNullsIterator, () => dart.global.Object.setPrototypeOf({
      [_source$]: {type: __t$IteratorOfTN(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_current$]: {type: __t$TN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(NonNullsIterator))));
    return NonNullsIterator;
  });
  _internal.NonNullsIterator = _internal.NonNullsIterator$();
  _internal.IndexedIterable$ = dart.generic(T => {
    var __t$IndexedIterableOfT = () => (__t$IndexedIterableOfT = dart.constFn(T[_eval]("_internal|IndexedIterable<0>")))();
    var __t$IteratorOfRecOfintAndT = () => (__t$IteratorOfRecOfintAndT = dart.constFn(T[_eval]("core|Iterator<+(core|int,0)>")))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(T[_eval]("core|Iterable<0>")))();
    var __t$IndexedIterableOfT$ = () => (__t$IndexedIterableOfT$ = dart.constFn(_internal.IndexedIterable$(T)))();
    var __t$IndexedIteratorOfT = () => (__t$IndexedIteratorOfT = dart.constFn(_internal.IndexedIterator$(T)))();
    var __t$IterableOfRecOfintAndT = () => (__t$IterableOfRecOfintAndT = dart.constFn(core.Iterable$(T[_eval]("+(core|int,0)"))))();
    class IndexedIterable extends __t$IterableOfRecOfintAndT() {
      static new(source, start) {
        if (source == null) dart.nullFailed(I[48], 949, 39, "source");
        if (start == null) dart.nullFailed(I[48], 949, 51, "start");
        if (T$.EfficientLengthIterable()[_is](source)) {
          return new (_internal.EfficientLengthIndexedIterable$(T)).new(source, start);
        }
        return new (_internal.IndexedIterable$(T)).__(source, start);
      }
      static ['_#new#tearOff'](T, source, start) {
        if (source == null) dart.nullFailed(I[48], 949, 39, "source");
        if (start == null) dart.nullFailed(I[48], 949, 51, "start");
        return _internal.IndexedIterable$(T).new(source, start);
      }
      static ['_#nonEfficientLength#tearOff'](T, source, start) {
        if (source == null) dart.nullFailed(I[48], 956, 50, "source");
        if (start == null) dart.nullFailed(I[48], 956, 62, "start");
        return new (_internal.IndexedIterable$(T)).nonEfficientLength(source, start);
      }
      static ['_#_#tearOff'](T, _source, _start) {
        if (_source == null) dart.nullFailed(I[48], 959, 26, "_source");
        if (_start == null) dart.nullFailed(I[48], 959, 40, "_start");
        return new (_internal.IndexedIterable$(T)).__(_source, _start);
      }
      get length() {
        return this[_source$][$length];
      }
      get isEmpty() {
        return this[_source$][$isEmpty];
      }
      get isNotEmpty() {
        return this[_source$][$isNotEmpty];
      }
      get first() {
        return dart.recordLiteral("2;", 2, void 0, [this[_start$], this[_source$][$first]]);
      }
      get single() {
        return dart.recordLiteral("2;", 2, void 0, [this[_start$], this[_source$][$single]]);
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[48], 967, 26, "index");
        return dart.recordLiteral("2;", 2, void 0, [dart.notNull(index) + dart.notNull(this[_start$]), this[_source$][$elementAt](index)]);
      }
      contains(element) {
        {
          let t$36$350$350 = element;
          let t$36$350$352 = null;
          let t$36$350$352$35isSet = false;
          let t$36$350$353 = null;
          let t$36$350$353$35isSet = false;
          {
            let index = null;
            let other = null;
            if (T$0.RecOfObjectNAndObjectN()[_is](t$36$350$350) && T$.int()[_is](t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$1)) && (index = t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$1), true) && T$.ObjectN()[_is](t$36$350$353$35isSet ? t$36$350$353 : (t$36$350$353$35isSet = true, t$36$350$353 = t$36$350$350.$2)) && (other = t$36$350$353$35isSet ? t$36$350$353 : (t$36$350$353$35isSet = true, t$36$350$353 = t$36$350$350.$2), true) && dart.notNull(index) >= dart.notNull(this[_start$])) {
              let unbiasedIndex = dart.notNull(index) - dart.notNull(this[_start$]);
              let iterator = this[_source$][$skip](unbiasedIndex)[$iterator];
              return dart.test(iterator.moveNext()) && dart.equals(iterator.current, other);
            }
          }
        }
        return false;
      }
      take(count) {
        if (count == null) dart.nullFailed(I[48], 980, 31, "count");
        return new (__t$IndexedIterableOfT$()).nonEfficientLength(this[_source$][$take](_internal._checkCount(count)), this[_start$]);
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[48], 983, 31, "count");
        return new (__t$IndexedIterableOfT$()).nonEfficientLength(this[_source$][$skip](_internal._checkCount(count)), dart.notNull(count) + dart.notNull(this[_start$]));
      }
      get iterator() {
        return new (__t$IndexedIteratorOfT()).new(this[_source$][$iterator], this[_start$]);
      }
    }
    (IndexedIterable.nonEfficientLength = function(source, start) {
      if (source == null) dart.nullFailed(I[48], 956, 50, "source");
      if (start == null) dart.nullFailed(I[48], 956, 62, "start");
      IndexedIterable.__.call(this, source, start);
    }).prototype = IndexedIterable.prototype;
    (IndexedIterable.__ = function(_source, _start) {
      if (_source == null) dart.nullFailed(I[48], 959, 26, "_source");
      if (_start == null) dart.nullFailed(I[48], 959, 40, "_start");
      this[_source$] = _source;
      this[_start$] = _start;
      this.$ti = this.$ti || __t$IndexedIterableOfT();
      dart.global.Object.getPrototypeOf(IndexedIterable).new.call(this);
      ;
    }).prototype = IndexedIterable.prototype;
    dart.addRtiResources(IndexedIterable, ["_internal|IndexedIterable"]);
    dart.setStaticMethodSignature(IndexedIterable, () => ['new']);
    dart.setGetterSignature(IndexedIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfRecOfintAndT(),
      [$iterator]: __t$IteratorOfRecOfintAndT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(IndexedIterable))));
    dart.setLibraryUri(IndexedIterable, I[36]);
    dart.setFieldSignature(IndexedIterable, () => dart.global.Object.setPrototypeOf({
      [_source$]: {type: __t$IterableOfT(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_start$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(IndexedIterable))));
    dart.defineExtensionMethods(IndexedIterable, ['elementAt', 'contains', 'take', 'skip']);
    dart.defineExtensionAccessors(IndexedIterable, [
      'length',
      'isEmpty',
      'isNotEmpty',
      'first',
      'single',
      'iterator'
    ]);
    return IndexedIterable;
  });
  _internal.IndexedIterable = _internal.IndexedIterable$();
  _internal.EfficientLengthIndexedIterable$ = dart.generic(T => {
    var __t$EfficientLengthIndexedIterableOfT = () => (__t$EfficientLengthIndexedIterableOfT = dart.constFn(T[_eval]("_internal|EfficientLengthIndexedIterable<0>")))();
    var __t$EfficientLengthIndexedIterableOfT$ = () => (__t$EfficientLengthIndexedIterableOfT$ = dart.constFn(_internal.EfficientLengthIndexedIterable$(T)))();
    var __t$IndexedIterableOfT = () => (__t$IndexedIterableOfT = dart.constFn(_internal.IndexedIterable$(T)))();
    class EfficientLengthIndexedIterable extends __t$IndexedIterableOfT() {
      static ['_#new#tearOff'](T, _source, _start) {
        if (_source == null) dart.nullFailed(I[48], 995, 40, "_source");
        if (_start == null) dart.nullFailed(I[48], 995, 55, "_start");
        return new (_internal.EfficientLengthIndexedIterable$(T)).new(_source, _start);
      }
      get last() {
        let length = this[_source$][$length];
        if (dart.notNull(length) <= 0) dart.throw(_internal.IterableElementError.noElement());
        let last = this[_source$][$last];
        if (length != this.length) {
          dart.throw(new core.ConcurrentModificationError.new(this));
        }
        return dart.recordLiteral("2;", 2, void 0, [dart.notNull(length) - 1 + dart.notNull(this[_start$]), last]);
      }
      contains(element) {
        {
          let t$36$350$350 = element;
          let t$36$350$352 = null;
          let t$36$350$352$35isSet = false;
          let t$36$350$353 = null;
          let t$36$350$353$35isSet = false;
          {
            let index = null;
            let other = null;
            if (T$0.RecOfObjectNAndObjectN()[_is](t$36$350$350) && T$.int()[_is](t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$1)) && (index = t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$1), true) && T$.ObjectN()[_is](t$36$350$353$35isSet ? t$36$350$353 : (t$36$350$353$35isSet = true, t$36$350$353 = t$36$350$350.$2)) && (other = t$36$350$353$35isSet ? t$36$350$353 : (t$36$350$353$35isSet = true, t$36$350$353 = t$36$350$350.$2), true) && dart.notNull(index) >= dart.notNull(this[_start$])) {
              let unbiasedIndex = dart.notNull(index) - dart.notNull(this[_start$]);
              return unbiasedIndex < dart.notNull(this[_source$][$length]) && dart.equals(this[_source$][$elementAt](unbiasedIndex), other);
            }
          }
        }
        return false;
      }
      take(count) {
        if (count == null) dart.nullFailed(I[48], 1016, 31, "count");
        return new (__t$EfficientLengthIndexedIterableOfT$()).new(this[_source$][$take](_internal._checkCount(count)), this[_start$]);
      }
      skip(count) {
        if (count == null) dart.nullFailed(I[48], 1019, 31, "count");
        return new (__t$EfficientLengthIndexedIterableOfT$()).new(this[_source$][$skip](_internal._checkCount(count)), dart.notNull(this[_start$]) + dart.notNull(count));
      }
    }
    (EfficientLengthIndexedIterable.new = function(_source, _start) {
      if (_source == null) dart.nullFailed(I[48], 995, 40, "_source");
      if (_start == null) dart.nullFailed(I[48], 995, 55, "_start");
      this.$ti = this.$ti || __t$EfficientLengthIndexedIterableOfT();
      dart.global.Object.getPrototypeOf(EfficientLengthIndexedIterable).__.call(this, _source, _start);
      ;
    }).prototype = EfficientLengthIndexedIterable.prototype;
    dart.addRtiResources(EfficientLengthIndexedIterable, ["_internal|EfficientLengthIndexedIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setLibraryUri(EfficientLengthIndexedIterable, I[36]);
    dart.defineExtensionMethods(EfficientLengthIndexedIterable, ['contains', 'take', 'skip']);
    dart.defineExtensionAccessors(EfficientLengthIndexedIterable, ['last']);
    return EfficientLengthIndexedIterable;
  });
  _internal.EfficientLengthIndexedIterable = _internal.EfficientLengthIndexedIterable$();
  _internal.IndexedIterator$ = dart.generic(T => {
    var __t$IndexedIteratorOfT = () => (__t$IndexedIteratorOfT = dart.constFn(T[_eval]("_internal|IndexedIterator<0>")))();
    var __t$RecOfintAndT = () => (__t$RecOfintAndT = dart.constFn(T[_eval]("+(core|int,0)")))();
    var __t$IteratorOfT = () => (__t$IteratorOfT = dart.constFn(T[_eval]("core|Iterator<0>")))();
    class IndexedIterator extends core.Object {
      static ['_#new#tearOff'](T, _source, _start) {
        if (_source == null) dart.nullFailed(I[48], 1028, 24, "_source");
        if (_start == null) dart.nullFailed(I[48], 1028, 38, "_start");
        return new (_internal.IndexedIterator$(T)).new(_source, _start);
      }
      moveNext() {
        let index = this[_index$] = dart.notNull(this[_index$]) + 1;
        if (index >= 0 && dart.test(this[_source$].moveNext())) {
          return true;
        }
        this[_index$] = -2;
        return false;
      }
      get current() {
        return dart.notNull(this[_index$]) >= 0 ? dart.recordLiteral("2;", 2, void 0, [dart.notNull(this[_start$]) + dart.notNull(this[_index$]), this[_source$].current]) : dart.throw(_internal.IterableElementError.noElement());
      }
    }
    (IndexedIterator.new = function(_source, _start) {
      if (_source == null) dart.nullFailed(I[48], 1028, 24, "_source");
      if (_start == null) dart.nullFailed(I[48], 1028, 38, "_start");
      this[_index$] = -1;
      this[_source$] = _source;
      this[_start$] = _start;
      this.$ti = this.$ti || __t$IndexedIteratorOfT();
      ;
    }).prototype = IndexedIterator.prototype;
    dart.addRtiResources(IndexedIterator, ["_internal|IndexedIterator", "core|Iterator"]);
    dart.setMethodSignature(IndexedIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(IndexedIterator))));
    dart.setGetterSignature(IndexedIterator, () => dart.global.Object.setPrototypeOf({current: __t$RecOfintAndT()}, dart.getGetters(dart.global.Object.getPrototypeOf(IndexedIterator))));
    dart.setLibraryUri(IndexedIterator, I[36]);
    dart.setFieldSignature(IndexedIterator, () => dart.global.Object.setPrototypeOf({
      [_source$]: {type: __t$IteratorOfT(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_start$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_index$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(IndexedIterator))));
    return IndexedIterator;
  });
  _internal.IndexedIterator = _internal.IndexedIterator$();
  _internal.IterableElementError = class IterableElementError extends core.Object {
    static noElement() {
      return new core.StateError.new("No element");
    }
    static tooMany() {
      return new core.StateError.new("Too many elements");
    }
    static tooFew() {
      return new core.StateError.new("Too few elements");
    }
  };
  (_internal.IterableElementError.new = function() {
    ;
  }).prototype = _internal.IterableElementError.prototype;
  dart.addRtiResources(_internal.IterableElementError, ["_internal|IterableElementError"]);
  dart.setStaticMethodSignature(_internal.IterableElementError, () => ['noElement', 'tooMany', 'tooFew']);
  dart.setLibraryUri(_internal.IterableElementError, I[36]);
  _internal.FixedLengthListMixin$ = dart.generic(E => {
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~(core|bool(0))")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    class FixedLengthListMixin extends core.Object {}
    FixedLengthListMixin[dart.mixinOn] = Object => {
      class FixedLengthListMixin extends Object {
        set length(newLength) {
          if (newLength == null) dart.nullFailed(I[34], 14, 18, "newLength");
          dart.throw(new core.UnsupportedError.new("Cannot change the length of a fixed-length list"));
        }
        add(value) {
          E[_as](value);
          dart.throw(new core.UnsupportedError.new("Cannot add to a fixed-length list"));
        }
        insert(index, value) {
          if (index == null) dart.nullFailed(I[34], 25, 19, "index");
          E[_as](value);
          dart.throw(new core.UnsupportedError.new("Cannot add to a fixed-length list"));
        }
        insertAll(at, iterable) {
          if (at == null) dart.nullFailed(I[34], 30, 22, "at");
          __t$IterableOfE()[_as](iterable);
          if (iterable == null) dart.nullFailed(I[34], 30, 38, "iterable");
          dart.throw(new core.UnsupportedError.new("Cannot add to a fixed-length list"));
        }
        addAll(iterable) {
          __t$IterableOfE()[_as](iterable);
          if (iterable == null) dart.nullFailed(I[34], 35, 27, "iterable");
          dart.throw(new core.UnsupportedError.new("Cannot add to a fixed-length list"));
        }
        remove(element) {
          dart.throw(new core.UnsupportedError.new("Cannot remove from a fixed-length list"));
        }
        removeWhere(test) {
          if (test == null) dart.nullFailed(I[34], 45, 25, "test");
          dart.throw(new core.UnsupportedError.new("Cannot remove from a fixed-length list"));
        }
        retainWhere(test) {
          if (test == null) dart.nullFailed(I[34], 50, 25, "test");
          dart.throw(new core.UnsupportedError.new("Cannot remove from a fixed-length list"));
        }
        clear() {
          dart.throw(new core.UnsupportedError.new("Cannot clear a fixed-length list"));
        }
        removeAt(index) {
          if (index == null) dart.nullFailed(I[34], 60, 18, "index");
          dart.throw(new core.UnsupportedError.new("Cannot remove from a fixed-length list"));
        }
        removeLast() {
          dart.throw(new core.UnsupportedError.new("Cannot remove from a fixed-length list"));
        }
        removeRange(start, end) {
          if (start == null) dart.nullFailed(I[34], 70, 24, "start");
          if (end == null) dart.nullFailed(I[34], 70, 35, "end");
          dart.throw(new core.UnsupportedError.new("Cannot remove from a fixed-length list"));
        }
        replaceRange(start, end, iterable) {
          if (start == null) dart.nullFailed(I[34], 75, 25, "start");
          if (end == null) dart.nullFailed(I[34], 75, 36, "end");
          __t$IterableOfE()[_as](iterable);
          if (iterable == null) dart.nullFailed(I[34], 75, 53, "iterable");
          dart.throw(new core.UnsupportedError.new("Cannot remove from a fixed-length list"));
        }
      }
      dart.defineExtensionMethods(FixedLengthListMixin, [
        'add',
        'insert',
        'insertAll',
        'addAll',
        'remove',
        'removeWhere',
        'retainWhere',
        'clear',
        'removeAt',
        'removeLast',
        'removeRange',
        'replaceRange'
      ]);
      dart.defineExtensionAccessors(FixedLengthListMixin, ['length']);
      return FixedLengthListMixin;
    };
    (FixedLengthListMixin[dart.mixinNew] = function() {
    }).prototype = FixedLengthListMixin.prototype;
    dart.addRtiResources(FixedLengthListMixin, ["_internal|FixedLengthListMixin"]);
    dart.setMethodSignature(FixedLengthListMixin, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      [$add]: T$.ObjectNTovoid(),
      insert: T$.intAndObjectNTovoid(),
      [$insert]: T$.intAndObjectNTovoid(),
      insertAll: T$.intAndObjectNTovoid(),
      [$insertAll]: T$.intAndObjectNTovoid(),
      addAll: T$.ObjectNTovoid(),
      [$addAll]: T$.ObjectNTovoid(),
      remove: T$.ObjectNTobool(),
      [$remove]: T$.ObjectNTobool(),
      removeWhere: __t$FnTovoid(),
      [$removeWhere]: __t$FnTovoid(),
      retainWhere: __t$FnTovoid(),
      [$retainWhere]: __t$FnTovoid(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid(),
      removeAt: __t$intToE(),
      [$removeAt]: __t$intToE(),
      removeLast: __t$VoidToE(),
      [$removeLast]: __t$VoidToE(),
      removeRange: T$.intAndintTovoid(),
      [$removeRange]: T$.intAndintTovoid(),
      replaceRange: T$.intAndintAndObjectNTovoid$1(),
      [$replaceRange]: T$.intAndintAndObjectNTovoid$1()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(FixedLengthListMixin))));
    dart.setSetterSignature(FixedLengthListMixin, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(FixedLengthListMixin))));
    dart.setLibraryUri(FixedLengthListMixin, I[36]);
    return FixedLengthListMixin;
  });
  _internal.FixedLengthListMixin = _internal.FixedLengthListMixin$();
  _internal.FixedLengthListBase$ = dart.generic(E => {
    var __t$FixedLengthListBaseOfE = () => (__t$FixedLengthListBaseOfE = dart.constFn(E[_eval]("_internal|FixedLengthListBase<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$ListBaseOfE = () => (__t$ListBaseOfE = dart.constFn(collection.ListBase$(E)))();
    var __t$FixedLengthListMixinOfE = () => (__t$FixedLengthListMixinOfE = dart.constFn(_internal.FixedLengthListMixin$(E)))();
    const ListBase_FixedLengthListMixin$36 = class ListBase_FixedLengthListMixin extends __t$ListBaseOfE() {};
    (ListBase_FixedLengthListMixin$36.new = function() {
      dart.global.Object.getPrototypeOf(ListBase_FixedLengthListMixin$36).new.call(this);
    }).prototype = ListBase_FixedLengthListMixin$36.prototype;
    dart.applyMixin(ListBase_FixedLengthListMixin$36, __t$FixedLengthListMixinOfE());
    class FixedLengthListBase extends ListBase_FixedLengthListMixin$36 {
      set length(newLength) {
        if (newLength == null) dart.nullFailed(I[34], 199, 16, "newLength");
        return super[$length] = newLength;
      }
      add(value) {
        E[_as](value);
        return super[$add](value);
      }
      insert(index, value) {
        if (index == null) dart.nullFailed(I[34], 199, 16, "index");
        E[_as](value);
        return super[$insert](index, value);
      }
      insertAll(at, iterable) {
        if (at == null) dart.nullFailed(I[34], 199, 16, "at");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[34], 199, 16, "iterable");
        return super[$insertAll](at, iterable);
      }
      addAll(iterable) {
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[34], 199, 16, "iterable");
        return super[$addAll](iterable);
      }
      remove(element) {
        return super[$remove](element);
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[34], 199, 16, "test");
        return super[$removeWhere](test);
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[34], 199, 16, "test");
        return super[$retainWhere](test);
      }
      clear() {
        return super[$clear]();
      }
      removeAt(index) {
        if (index == null) dart.nullFailed(I[34], 199, 16, "index");
        return super[$removeAt](index);
      }
      removeLast() {
        return super[$removeLast]();
      }
      removeRange(start, end) {
        if (start == null) dart.nullFailed(I[34], 199, 16, "start");
        if (end == null) dart.nullFailed(I[34], 199, 16, "end");
        return super[$removeRange](start, end);
      }
      replaceRange(start, end, iterable) {
        if (start == null) dart.nullFailed(I[34], 199, 16, "start");
        if (end == null) dart.nullFailed(I[34], 199, 16, "end");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[34], 199, 16, "iterable");
        return super[$replaceRange](start, end, iterable);
      }
    }
    (FixedLengthListBase.new = function() {
      this.$ti = this.$ti || __t$FixedLengthListBaseOfE();
      dart.global.Object.getPrototypeOf(FixedLengthListBase).new.call(this);
      ;
    }).prototype = FixedLengthListBase.prototype;
    dart.addRtiResources(FixedLengthListBase, ["_internal|FixedLengthListBase", "_internal|FixedLengthListMixin"]);
    dart.setSetterSignature(FixedLengthListBase, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(FixedLengthListBase))));
    dart.setLibraryUri(FixedLengthListBase, I[36]);
    dart.defineExtensionMethods(FixedLengthListBase, [
      'add',
      'insert',
      'insertAll',
      'addAll',
      'remove',
      'removeWhere',
      'retainWhere',
      'clear',
      'removeAt',
      'removeLast',
      'removeRange',
      'replaceRange'
    ]);
    dart.defineExtensionAccessors(FixedLengthListBase, ['length']);
    return FixedLengthListBase;
  });
  _internal.FixedLengthListBase = _internal.FixedLengthListBase$();
  var _backedList$ = dart.privateName(_internal, "_backedList");
  _internal._ListIndicesIterable = class _ListIndicesIterable extends G.ListIterableOfint() {
    static ['_#new#tearOff'](_backedList) {
      if (_backedList == null) dart.nullFailed(I[34], 214, 29, "_backedList");
      return new _internal._ListIndicesIterable.new(_backedList);
    }
    get length() {
      return this[_backedList$][$length];
    }
    elementAt(index) {
      if (index == null) dart.nullFailed(I[34], 217, 21, "index");
      core.IndexError.check(index, this.length, {indexable: this});
      return index;
    }
  };
  (_internal._ListIndicesIterable.new = function(_backedList) {
    if (_backedList == null) dart.nullFailed(I[34], 214, 29, "_backedList");
    this[_backedList$] = _backedList;
    this.$ti = this.$ti || T$0._ListIndicesIterable();
    dart.global.Object.getPrototypeOf(_internal._ListIndicesIterable).new.call(this);
    ;
  }).prototype = _internal._ListIndicesIterable.prototype;
  dart.addRtiResources(_internal._ListIndicesIterable, ["_internal|_ListIndicesIterable"]);
  dart.setLibraryUri(_internal._ListIndicesIterable, I[36]);
  dart.setFieldSignature(_internal._ListIndicesIterable, () => dart.global.Object.setPrototypeOf({[_backedList$]: {type: T$.List(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_internal._ListIndicesIterable))));
  dart.defineExtensionMethods(_internal._ListIndicesIterable, ['elementAt']);
  dart.defineExtensionAccessors(_internal._ListIndicesIterable, ['length']);
  var _values$ = dart.privateName(_internal, "_values");
  collection._UnmodifiableMapMixin$ = dart.generic((K, V) => {
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$IterableOfMapEntryOfK$V = () => (__t$IterableOfMapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Iterable<core|MapEntry<1,2>>")))();
    var __t$KAndVToV = () => (__t$KAndVToV = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("2(1,2)")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(core|bool(1,2))")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$VToV = () => (__t$VToV = dart.constFn(V[_eval]("0(0)")))();
    var __t$VoidToNV = () => (__t$VoidToNV = dart.constFn(V[_eval]("0()?")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$ObjectNAndObjectNToV = () => (__t$ObjectNAndObjectNToV = dart.constFn(V[_eval]("0(core|Object?,core|Object?)")))();
    var __t$ObjectNAndObjectN__ToV = () => (__t$ObjectNAndObjectN__ToV = dart.constFn(V[_eval]("0(core|Object?,core|Object?{ifAbsent:core|Object?})")))();
    class _UnmodifiableMapMixin extends core.Object {}
    _UnmodifiableMapMixin[dart.mixinOn] = Object => {
      class _UnmodifiableMapMixin extends Object {
        _set(key, value$) {
          let value = value$;
          K[_as](key);
          V[_as](value);
          dart.throw(new core.UnsupportedError.new("Cannot modify unmodifiable map"));
          return value$;
        }
        addAll(other) {
          __t$MapOfK$V()[_as](other);
          if (other == null) dart.nullFailed(I[46], 276, 25, "other");
          dart.throw(new core.UnsupportedError.new("Cannot modify unmodifiable map"));
        }
        addEntries(entries) {
          __t$IterableOfMapEntryOfK$V()[_as](entries);
          if (entries == null) dart.nullFailed(I[46], 281, 44, "entries");
          dart.throw(new core.UnsupportedError.new("Cannot modify unmodifiable map"));
        }
        clear() {
          dart.throw(new core.UnsupportedError.new("Cannot modify unmodifiable map"));
        }
        remove(key) {
          dart.throw(new core.UnsupportedError.new("Cannot modify unmodifiable map"));
        }
        removeWhere(test) {
          if (test == null) dart.nullFailed(I[46], 296, 25, "test");
          dart.throw(new core.UnsupportedError.new("Cannot modify unmodifiable map"));
        }
        putIfAbsent(key, ifAbsent) {
          K[_as](key);
          __t$VoidToV()[_as](ifAbsent);
          if (ifAbsent == null) dart.nullFailed(I[46], 301, 26, "ifAbsent");
          dart.throw(new core.UnsupportedError.new("Cannot modify unmodifiable map"));
        }
        update(key, update, opts) {
          K[_as](key);
          __t$VToV()[_as](update);
          if (update == null) dart.nullFailed(I[46], 306, 21, "update");
          let ifAbsent = opts && 'ifAbsent' in opts ? opts.ifAbsent : null;
          __t$VoidToNV()[_as](ifAbsent);
          dart.throw(new core.UnsupportedError.new("Cannot modify unmodifiable map"));
        }
        updateAll(update) {
          __t$KAndVToV()[_as](update);
          if (update == null) dart.nullFailed(I[46], 311, 20, "update");
          dart.throw(new core.UnsupportedError.new("Cannot modify unmodifiable map"));
        }
      }
      dart.defineExtensionMethods(_UnmodifiableMapMixin, [
        '_set',
        'addAll',
        'addEntries',
        'clear',
        'remove',
        'removeWhere',
        'putIfAbsent',
        'update',
        'updateAll'
      ]);
      return _UnmodifiableMapMixin;
    };
    (_UnmodifiableMapMixin[dart.mixinNew] = function() {
    }).prototype = _UnmodifiableMapMixin.prototype;
    dart.addRtiResources(_UnmodifiableMapMixin, ["collection|_UnmodifiableMapMixin", "core|Map"]);
    dart.setMethodSignature(_UnmodifiableMapMixin, () => dart.global.Object.setPrototypeOf({
      _set: T$.ObjectNAndObjectNTovoid(),
      [$_set]: T$.ObjectNAndObjectNTovoid(),
      addAll: T$.ObjectNTovoid(),
      [$addAll]: T$.ObjectNTovoid(),
      addEntries: T$.ObjectNTovoid(),
      [$addEntries]: T$.ObjectNTovoid(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid(),
      remove: __t$ObjectNToVN(),
      [$remove]: __t$ObjectNToVN(),
      removeWhere: __t$FnTovoid(),
      [$removeWhere]: __t$FnTovoid(),
      putIfAbsent: __t$ObjectNAndObjectNToV(),
      [$putIfAbsent]: __t$ObjectNAndObjectNToV(),
      update: __t$ObjectNAndObjectN__ToV(),
      [$update]: __t$ObjectNAndObjectN__ToV(),
      updateAll: T$.ObjectNTovoid(),
      [$updateAll]: T$.ObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_UnmodifiableMapMixin))));
    dart.setLibraryUri(_UnmodifiableMapMixin, I[24]);
    return _UnmodifiableMapMixin;
  });
  collection._UnmodifiableMapMixin = collection._UnmodifiableMapMixin$();
  collection.UnmodifiableMapBase$ = dart.generic((K, V) => {
    var __t$UnmodifiableMapBaseOfK$V = () => (__t$UnmodifiableMapBaseOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|UnmodifiableMapBase<1,2>")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$IterableOfMapEntryOfK$V = () => (__t$IterableOfMapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Iterable<core|MapEntry<1,2>>")))();
    var __t$KAndVToV = () => (__t$KAndVToV = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("2(1,2)")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$VToV = () => (__t$VToV = dart.constFn(V[_eval]("0(0)")))();
    var __t$VoidToNV = () => (__t$VoidToNV = dart.constFn(V[_eval]("0()?")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$MapBaseOfK$V = () => (__t$MapBaseOfK$V = dart.constFn(collection.MapBase$(K, V)))();
    var __t$_UnmodifiableMapMixinOfK$V = () => (__t$_UnmodifiableMapMixinOfK$V = dart.constFn(collection._UnmodifiableMapMixin$(K, V)))();
    const MapBase__UnmodifiableMapMixin$36 = class MapBase__UnmodifiableMapMixin extends __t$MapBaseOfK$V() {};
    (MapBase__UnmodifiableMapMixin$36.new = function() {
      dart.global.Object.getPrototypeOf(MapBase__UnmodifiableMapMixin$36).new.call(this);
    }).prototype = MapBase__UnmodifiableMapMixin$36.prototype;
    dart.applyMixin(MapBase__UnmodifiableMapMixin$36, __t$_UnmodifiableMapMixinOfK$V());
    class UnmodifiableMapBase extends MapBase__UnmodifiableMapMixin$36 {
      _set(key, value$) {
        let value = value$;
        K[_as](key);
        V[_as](value);
        super._set(key, value);
        return value$;
      }
      addAll(other) {
        __t$MapOfK$V()[_as](other);
        if (other == null) dart.nullFailed(I[46], 219, 16, "other");
        return super.addAll(other);
      }
      addEntries(entries) {
        __t$IterableOfMapEntryOfK$V()[_as](entries);
        if (entries == null) dart.nullFailed(I[46], 219, 16, "entries");
        return super.addEntries(entries);
      }
      clear() {
        return super.clear();
      }
      remove(key) {
        return super.remove(key);
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[46], 219, 16, "test");
        return super.removeWhere(test);
      }
      putIfAbsent(key, ifAbsent) {
        K[_as](key);
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[46], 219, 16, "ifAbsent");
        return super.putIfAbsent(key, ifAbsent);
      }
      update(key, update, opts) {
        K[_as](key);
        __t$VToV()[_as](update);
        if (update == null) dart.nullFailed(I[46], 219, 16, "update");
        let ifAbsent = opts && 'ifAbsent' in opts ? opts.ifAbsent : null;
        __t$VoidToNV()[_as](ifAbsent);
        return super.update(key, update, {ifAbsent: ifAbsent});
      }
      updateAll(update) {
        __t$KAndVToV()[_as](update);
        if (update == null) dart.nullFailed(I[46], 219, 16, "update");
        return super.updateAll(update);
      }
    }
    (UnmodifiableMapBase.new = function() {
      this.$ti = this.$ti || __t$UnmodifiableMapBaseOfK$V();
      dart.global.Object.getPrototypeOf(UnmodifiableMapBase).new.call(this);
      ;
    }).prototype = UnmodifiableMapBase.prototype;
    dart.addRtiResources(UnmodifiableMapBase, ["collection|UnmodifiableMapBase", "collection|_UnmodifiableMapMixin", "core|Map"]);
    dart.setMethodSignature(UnmodifiableMapBase, () => dart.global.Object.setPrototypeOf({
      _set: T$.ObjectNAndObjectNTovoid(),
      [$_set]: T$.ObjectNAndObjectNTovoid(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid(),
      remove: __t$ObjectNToVN(),
      [$remove]: __t$ObjectNToVN()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(UnmodifiableMapBase))));
    dart.setLibraryUri(UnmodifiableMapBase, I[24]);
    dart.defineExtensionMethods(UnmodifiableMapBase, [
      '_set',
      'addAll',
      'addEntries',
      'clear',
      'remove',
      'removeWhere',
      'putIfAbsent',
      'update',
      'updateAll'
    ]);
    return UnmodifiableMapBase;
  });
  collection.UnmodifiableMapBase = collection.UnmodifiableMapBase$();
  _internal.ListMapView$ = dart.generic(E => {
    var __t$ListMapViewOfE = () => (__t$ListMapViewOfE = dart.constFn(E[_eval]("_internal|ListMapView<0>")))();
    var __t$ObjectNToEN = () => (__t$ObjectNToEN = dart.constFn(E[_eval]("0?(core|Object?)")))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(E[_eval]("core|List<0>")))();
    var __t$SubListIterableOfE = () => (__t$SubListIterableOfE = dart.constFn(_internal.SubListIterable$(E)))();
    var __t$UnmodifiableMapBaseOfint$E = () => (__t$UnmodifiableMapBaseOfint$E = dart.constFn(collection.UnmodifiableMapBase$(dart_rti.findType("core|int"), E)))();
    class ListMapView extends __t$UnmodifiableMapBaseOfint$E() {
      static ['_#new#tearOff'](E, _values) {
        if (_values == null) dart.nullFailed(I[34], 226, 20, "_values");
        return new (_internal.ListMapView$(E)).new(_values);
      }
      _get(key) {
        return dart.test(this.containsKey(key)) ? this[_values$][$_get](T$.int()[_as](key)) : null;
      }
      get length() {
        return this[_values$][$length];
      }
      get values() {
        return new (__t$SubListIterableOfE()).new(this[_values$], 0, null);
      }
      get keys() {
        return new _internal._ListIndicesIterable.new(this[_values$]);
      }
      get isEmpty() {
        return this[_values$][$isEmpty];
      }
      get isNotEmpty() {
        return this[_values$][$isNotEmpty];
      }
      containsValue(value) {
        return this[_values$][$contains](value);
      }
      containsKey(key) {
        return T$.int()[_is](key) && dart.notNull(key) >= 0 && dart.notNull(key) < dart.notNull(this.length);
      }
      forEach(f) {
        if (f == null) dart.nullFailed(I[34], 239, 21, "f");
        let length = this[_values$][$length];
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          f(i, this[_values$][$_get](i));
          if (length != this[_values$][$length]) {
            dart.throw(new core.ConcurrentModificationError.new(this[_values$]));
          }
        }
      }
    }
    (ListMapView.new = function(_values) {
      if (_values == null) dart.nullFailed(I[34], 226, 20, "_values");
      this[_values$] = _values;
      this.$ti = this.$ti || __t$ListMapViewOfE();
      dart.global.Object.getPrototypeOf(ListMapView).new.call(this);
      ;
    }).prototype = ListMapView.prototype;
    dart.addRtiResources(ListMapView, ["_internal|ListMapView"]);
    dart.setMethodSignature(ListMapView, () => dart.global.Object.setPrototypeOf({
      _get: __t$ObjectNToEN(),
      [$_get]: __t$ObjectNToEN()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(ListMapView))));
    dart.setGetterSignature(ListMapView, () => dart.global.Object.setPrototypeOf({
      keys: T$0.IterableOfint(),
      [$keys]: T$0.IterableOfint()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(ListMapView))));
    dart.setLibraryUri(ListMapView, I[36]);
    dart.setFieldSignature(ListMapView, () => dart.global.Object.setPrototypeOf({[_values$]: {type: __t$ListOfE(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ListMapView))));
    dart.defineExtensionMethods(ListMapView, ['_get', 'containsValue', 'containsKey', 'forEach']);
    dart.defineExtensionAccessors(ListMapView, [
      'length',
      'values',
      'keys',
      'isEmpty',
      'isNotEmpty'
    ]);
    return ListMapView;
  });
  _internal.ListMapView = _internal.ListMapView$();
  _internal.ReversedListIterable$ = dart.generic(E => {
    var __t$ReversedListIterableOfE = () => (__t$ReversedListIterableOfE = dart.constFn(E[_eval]("_internal|ReversedListIterable<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$ListIterableOfE = () => (__t$ListIterableOfE = dart.constFn(_internal.ListIterable$(E)))();
    class ReversedListIterable extends __t$ListIterableOfE() {
      static ['_#new#tearOff'](E, _source) {
        if (_source == null) dart.nullFailed(I[34], 252, 29, "_source");
        return new (_internal.ReversedListIterable$(E)).new(_source);
      }
      get length() {
        return this[_source$][$length];
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[34], 256, 19, "index");
        return this[_source$][$elementAt](dart.notNull(this[_source$][$length]) - 1 - dart.notNull(index));
      }
    }
    (ReversedListIterable.new = function(_source) {
      if (_source == null) dart.nullFailed(I[34], 252, 29, "_source");
      this[_source$] = _source;
      this.$ti = this.$ti || __t$ReversedListIterableOfE();
      dart.global.Object.getPrototypeOf(ReversedListIterable).new.call(this);
      ;
    }).prototype = ReversedListIterable.prototype;
    dart.addRtiResources(ReversedListIterable, ["_internal|ReversedListIterable"]);
    dart.setLibraryUri(ReversedListIterable, I[36]);
    dart.setFieldSignature(ReversedListIterable, () => dart.global.Object.setPrototypeOf({[_source$]: {type: __t$IterableOfE(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ReversedListIterable))));
    dart.defineExtensionMethods(ReversedListIterable, ['elementAt']);
    dart.defineExtensionAccessors(ReversedListIterable, ['length']);
    return ReversedListIterable;
  });
  _internal.ReversedListIterable = _internal.ReversedListIterable$();
  _internal.UnmodifiableListError = class UnmodifiableListError extends core.Object {
    static add() {
      return new core.UnsupportedError.new("Cannot add to unmodifiable List");
    }
    static change() {
      return new core.UnsupportedError.new("Cannot change the content of an unmodifiable List");
    }
    static length() {
      return new core.UnsupportedError.new("Cannot change length of unmodifiable List");
    }
    static remove() {
      return new core.UnsupportedError.new("Cannot remove from unmodifiable List");
    }
  };
  (_internal.UnmodifiableListError.new = function() {
    ;
  }).prototype = _internal.UnmodifiableListError.prototype;
  dart.addRtiResources(_internal.UnmodifiableListError, ["_internal|UnmodifiableListError"]);
  dart.setStaticMethodSignature(_internal.UnmodifiableListError, () => ['add', 'change', 'length', 'remove']);
  dart.setLibraryUri(_internal.UnmodifiableListError, I[36]);
  _internal.NonGrowableListError = class NonGrowableListError extends core.Object {
    static add() {
      return new core.UnsupportedError.new("Cannot add to non-growable List");
    }
    static length() {
      return new core.UnsupportedError.new("Cannot change length of non-growable List");
    }
    static remove() {
      return new core.UnsupportedError.new("Cannot remove from non-growable List");
    }
  };
  (_internal.NonGrowableListError.new = function() {
    ;
  }).prototype = _internal.NonGrowableListError.prototype;
  dart.addRtiResources(_internal.NonGrowableListError, ["_internal|NonGrowableListError"]);
  dart.setStaticMethodSignature(_internal.NonGrowableListError, () => ['add', 'length', 'remove']);
  dart.setLibraryUri(_internal.NonGrowableListError, I[36]);
  var length = dart.privateName(_internal, "LinkedList.length");
  var _last = dart.privateName(_internal, "_last");
  var _next = dart.privateName(_internal, "_next");
  var _previous = dart.privateName(_internal, "_previous");
  var _list = dart.privateName(_internal, "_list");
  _internal.LinkedList$ = dart.generic(T => {
    var __t$LinkedListOfT = () => (__t$LinkedListOfT = dart.constFn(T[_eval]("_internal|LinkedList<0>")))();
    var __t$IteratorOfT = () => (__t$IteratorOfT = dart.constFn(T[_eval]("core|Iterator<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    var __t$_LinkedListIteratorOfT = () => (__t$_LinkedListIteratorOfT = dart.constFn(_internal._LinkedListIterator$(T)))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(core.Iterable$(T)))();
    class LinkedList extends __t$IterableOfT() {
      get length() {
        return this[length];
      }
      set length(value) {
        if (value == null) dart.nullFailed(I[49], 15, 7, "length");
        this[length] = value;
      }
      get first() {
        return dart.nullCast(this[_first$], T);
      }
      get last() {
        return dart.nullCast(this[_last], T);
      }
      get isEmpty() {
        return this.length === 0;
      }
      add(newLast) {
        T[_as](newLast);
        if (newLast == null) dart.nullFailed(I[49], 22, 14, "newLast");
        if (!(newLast[_next] == null && newLast[_previous] == null)) dart.assertFailed(null, I[49], 23, 12, "newLast._next == null && newLast._previous == null");
        if (this[_last] != null) {
          if (!(dart.nullCheck(this[_last])[_next] == null)) dart.assertFailed(null, I[49], 25, 14, "_last!._next == null");
          dart.nullCheck(this[_last])[_next] = newLast;
        } else {
          this[_first$] = newLast;
        }
        newLast[_previous] = this[_last];
        this[_last] = newLast;
        dart.nullCheck(this[_last])[_list] = this;
        this.length = dart.notNull(this.length) + 1;
      }
      addFirst(newFirst) {
        T[_as](newFirst);
        if (newFirst == null) dart.nullFailed(I[49], 39, 19, "newFirst");
        if (this[_first$] != null) {
          if (!(dart.nullCheck(this[_first$])[_previous] == null)) dart.assertFailed(null, I[49], 41, 14, "_first!._previous == null");
          dart.nullCheck(this[_first$])[_previous] = newFirst;
        } else {
          this[_last] = newFirst;
        }
        newFirst[_next] = this[_first$];
        this[_first$] = newFirst;
        dart.nullCheck(this[_first$])[_list] = this;
        this.length = dart.notNull(this.length) + 1;
      }
      remove(node) {
        T[_as](node);
        if (node == null) dart.nullFailed(I[49], 59, 17, "node");
        if (!dart.equals(node[_list], this)) return;
        this.length = dart.notNull(this.length) - 1;
        if (node[_previous] == null) {
          if (!(node == this[_first$])) dart.assertFailed(null, I[49], 63, 14, "identical(node, _first)");
          this[_first$] = node[_next];
        } else {
          dart.nullCheck(node[_previous])[_next] = node[_next];
        }
        if (node[_next] == null) {
          if (!(node == this[_last])) dart.assertFailed(null, I[49], 69, 14, "identical(node, _last)");
          this[_last] = node[_previous];
        } else {
          dart.nullCheck(node[_next])[_previous] = node[_previous];
        }
        node[_next] = node[_previous] = null;
        node[_list] = null;
      }
      get iterator() {
        return new (__t$_LinkedListIteratorOfT()).new(this);
      }
      static ['_#new#tearOff'](T) {
        return new (_internal.LinkedList$(T)).new();
      }
    }
    (LinkedList.new = function() {
      this[_first$] = null;
      this[_last] = null;
      this[length] = 0;
      this.$ti = this.$ti || __t$LinkedListOfT();
      dart.global.Object.getPrototypeOf(LinkedList).new.call(this);
      ;
    }).prototype = LinkedList.prototype;
    dart.addRtiResources(LinkedList, ["_internal|LinkedList"]);
    dart.setMethodSignature(LinkedList, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      addFirst: T$.ObjectNTovoid(),
      remove: T$.ObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(LinkedList))));
    dart.setGetterSignature(LinkedList, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfT(),
      [$iterator]: __t$IteratorOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(LinkedList))));
    dart.setLibraryUri(LinkedList, I[36]);
    dart.setFieldSignature(LinkedList, () => dart.global.Object.setPrototypeOf({
      [_first$]: {type: __t$TN(), isConst: false, isFinal: false},
      [_last]: {type: __t$TN(), isConst: false, isFinal: false},
      length: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(LinkedList))));
    dart.defineExtensionAccessors(LinkedList, [
      'length',
      'first',
      'last',
      'isEmpty',
      'iterator'
    ]);
    return LinkedList;
  });
  _internal.LinkedList = _internal.LinkedList$();
  var _next$ = dart.privateName(_internal, "LinkedListEntry._next");
  var _previous$ = dart.privateName(_internal, "LinkedListEntry._previous");
  var _list$ = dart.privateName(_internal, "LinkedListEntry._list");
  _internal.LinkedListEntry$ = dart.generic(T => {
    var __t$LinkedListEntryOfT = () => (__t$LinkedListEntryOfT = dart.constFn(T[_eval]("_internal|LinkedListEntry<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    var __t$LinkedListNOfT = () => (__t$LinkedListNOfT = dart.constFn(T[_eval]("_internal|LinkedList<0>?")))();
    class LinkedListEntry extends core.Object {
      get [_next]() {
        return this[_next$];
      }
      set [_next](value) {
        this[_next$] = __t$TN()[_as](value);
      }
      get [_previous]() {
        return this[_previous$];
      }
      set [_previous](value) {
        this[_previous$] = __t$TN()[_as](value);
      }
      get [_list]() {
        return this[_list$];
      }
      set [_list](value) {
        this[_list$] = __t$LinkedListNOfT()[_as](value);
      }
      unlink() {
        let t$3674;
        t$3674 = this[_list];
        t$3674 == null ? null : t$3674.remove(T[_as](this));
      }
      static ['_#new#tearOff'](T) {
        return new (_internal.LinkedListEntry$(T)).new();
      }
    }
    (LinkedListEntry.new = function() {
      this[_next$] = null;
      this[_previous$] = null;
      this[_list$] = null;
      this.$ti = this.$ti || __t$LinkedListEntryOfT();
      ;
    }).prototype = LinkedListEntry.prototype;
    dart.addRtiResources(LinkedListEntry, ["_internal|LinkedListEntry"]);
    dart.setMethodSignature(LinkedListEntry, () => dart.global.Object.setPrototypeOf({unlink: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(LinkedListEntry))));
    dart.setLibraryUri(LinkedListEntry, I[36]);
    dart.setFieldSignature(LinkedListEntry, () => dart.global.Object.setPrototypeOf({
      [_next]: {type: __t$TN(), isConst: false, isFinal: false},
      [_previous]: {type: __t$TN(), isConst: false, isFinal: false},
      [_list]: {type: __t$LinkedListNOfT(), isConst: false, isFinal: false, libraryUri: I[36]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(LinkedListEntry))));
    return LinkedListEntry;
  });
  _internal.LinkedListEntry = _internal.LinkedListEntry$();
  _internal._LinkedListIterator$ = dart.generic(T => {
    var __t$_LinkedListIteratorOfT = () => (__t$_LinkedListIteratorOfT = dart.constFn(T[_eval]("_internal|_LinkedListIterator<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    var __t$LinkedListNOfT = () => (__t$LinkedListNOfT = dart.constFn(T[_eval]("_internal|LinkedList<0>?")))();
    class _LinkedListIterator extends core.Object {
      get current() {
        return dart.nullCast(this[_current$], T);
      }
      static ['_#new#tearOff'](T, list) {
        if (list == null) dart.nullFailed(I[49], 113, 37, "list");
        return new (_internal._LinkedListIterator$(T)).new(list);
      }
      moveNext() {
        if (this[_current$] == null) {
          let list = this[_list];
          if (list == null) return false;
          if (!(dart.notNull(list.length) > 0)) dart.assertFailed(null, I[49], 123, 14, "list.length > 0");
          this[_current$] = list.first;
          this[_list] = null;
          return true;
        }
        this[_current$] = dart.nullCheck(this[_current$])[_next];
        return this[_current$] != null;
      }
    }
    (_LinkedListIterator.new = function(list) {
      if (list == null) dart.nullFailed(I[49], 113, 37, "list");
      this[_current$] = null;
      this[_list] = list;
      this.$ti = this.$ti || __t$_LinkedListIteratorOfT();
      if (list.length === 0) this[_list] = null;
    }).prototype = _LinkedListIterator.prototype;
    dart.addRtiResources(_LinkedListIterator, ["_internal|_LinkedListIterator", "core|Iterator"]);
    dart.setMethodSignature(_LinkedListIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_LinkedListIterator))));
    dart.setGetterSignature(_LinkedListIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(_LinkedListIterator))));
    dart.setLibraryUri(_LinkedListIterator, I[36]);
    dart.setFieldSignature(_LinkedListIterator, () => dart.global.Object.setPrototypeOf({
      [_current$]: {type: __t$TN(), isConst: false, isFinal: false},
      [_list]: {type: __t$LinkedListNOfT(), isConst: false, isFinal: false, libraryUri: I[36]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_LinkedListIterator))));
    return _LinkedListIterator;
  });
  _internal._LinkedListIterator = _internal._LinkedListIterator$();
  _internal._Patch = class _Patch extends core.Object {
    static ['_#new#tearOff']() {
      return new _internal._Patch.new();
    }
  };
  (_internal._Patch.new = function() {
    ;
  }).prototype = _internal._Patch.prototype;
  dart.addRtiResources(_internal._Patch, ["_internal|_Patch"]);
  dart.setLibraryUri(_internal._Patch, I[36]);
  _internal.Sort = class Sort extends core.Object {
    static sort(E, a, compare) {
      if (a == null) dart.nullFailed(I[50], 32, 31, "a");
      if (compare == null) dart.nullFailed(I[50], 32, 38, "compare");
      _internal.Sort._doSort(E, a, 0, dart.notNull(a[$length]) - 1, compare);
    }
    static sortRange(E, a, from, to, compare) {
      if (a == null) dart.nullFailed(I[50], 45, 36, "a");
      if (from == null) dart.nullFailed(I[50], 45, 43, "from");
      if (to == null) dart.nullFailed(I[50], 45, 53, "to");
      if (compare == null) dart.nullFailed(I[50], 45, 61, "compare");
      if (dart.notNull(from) < 0 || dart.notNull(to) > dart.notNull(a[$length]) || dart.notNull(to) < dart.notNull(from)) {
        dart.throw("OutOfRange");
      }
      _internal.Sort._doSort(E, a, from, dart.notNull(to) - 1, compare);
    }
    static _doSort(E, a, left, right, compare) {
      if (a == null) dart.nullFailed(I[50], 56, 15, "a");
      if (left == null) dart.nullFailed(I[50], 56, 22, "left");
      if (right == null) dart.nullFailed(I[50], 56, 32, "right");
      if (compare == null) dart.nullFailed(I[50], 56, 43, "compare");
      if (dart.notNull(right) - dart.notNull(left) <= 32) {
        _internal.Sort._insertionSort(E, a, left, right, compare);
      } else {
        _internal.Sort._dualPivotQuicksort(E, a, left, right, compare);
      }
    }
    static _insertionSort(E, a, left, right, compare) {
      if (a == null) dart.nullFailed(I[50], 65, 15, "a");
      if (left == null) dart.nullFailed(I[50], 65, 22, "left");
      if (right == null) dart.nullFailed(I[50], 65, 32, "right");
      if (compare == null) dart.nullFailed(I[50], 65, 43, "compare");
      for (let i = dart.notNull(left) + 1; i <= dart.notNull(right); i = i + 1) {
        let el = a[$_get](i);
        let j = i;
        while (j > dart.notNull(left) && dart.notNull(compare(a[$_get](j - 1), el)) > 0) {
          a[$_set](j, a[$_get](j - 1));
          j = j - 1;
        }
        a[$_set](j, el);
      }
    }
    static _dualPivotQuicksort(E, a, left, right, compare) {
      let t$3674, t$3674$, t$3674$0, t$3674$1, t$3674$2, t$3674$3, t$3674$4, t$3674$5, t$3674$6;
      if (a == null) dart.nullFailed(I[50], 78, 15, "a");
      if (left == null) dart.nullFailed(I[50], 78, 22, "left");
      if (right == null) dart.nullFailed(I[50], 78, 32, "right");
      if (compare == null) dart.nullFailed(I[50], 78, 43, "compare");
      if (!(dart.notNull(right) - dart.notNull(left) > 32)) dart.assertFailed(null, I[50], 79, 12, "right - left > _INSERTION_SORT_THRESHOLD");
      let sixth = ((dart.notNull(right) - dart.notNull(left) + 1) / 6)[$truncate]();
      let index1 = dart.notNull(left) + sixth;
      let index5 = dart.notNull(right) - sixth;
      let index3 = ((dart.notNull(left) + dart.notNull(right)) / 2)[$truncate]();
      let index2 = index3 - sixth;
      let index4 = index3 + sixth;
      let el1 = a[$_get](index1);
      let el2 = a[$_get](index2);
      let el3 = a[$_get](index3);
      let el4 = a[$_get](index4);
      let el5 = a[$_get](index5);
      if (dart.notNull(compare(el1, el2)) > 0) {
        let t = el1;
        el1 = el2;
        el2 = t;
      }
      if (dart.notNull(compare(el4, el5)) > 0) {
        let t = el4;
        el4 = el5;
        el5 = t;
      }
      if (dart.notNull(compare(el1, el3)) > 0) {
        let t = el1;
        el1 = el3;
        el3 = t;
      }
      if (dart.notNull(compare(el2, el3)) > 0) {
        let t = el2;
        el2 = el3;
        el3 = t;
      }
      if (dart.notNull(compare(el1, el4)) > 0) {
        let t = el1;
        el1 = el4;
        el4 = t;
      }
      if (dart.notNull(compare(el3, el4)) > 0) {
        let t = el3;
        el3 = el4;
        el4 = t;
      }
      if (dart.notNull(compare(el2, el5)) > 0) {
        let t = el2;
        el2 = el5;
        el5 = t;
      }
      if (dart.notNull(compare(el2, el3)) > 0) {
        let t = el2;
        el2 = el3;
        el3 = t;
      }
      if (dart.notNull(compare(el4, el5)) > 0) {
        let t = el4;
        el4 = el5;
        el5 = t;
      }
      let pivot1 = el2;
      let pivot2 = el4;
      a[$_set](index1, el1);
      a[$_set](index3, el3);
      a[$_set](index5, el5);
      a[$_set](index2, a[$_get](left));
      a[$_set](index4, a[$_get](right));
      let less = dart.notNull(left) + 1;
      let great = dart.notNull(right) - 1;
      let pivots_are_equal = compare(pivot1, pivot2) === 0;
      if (pivots_are_equal) {
        let pivot = pivot1;
        for (let k = less; k <= great; k = k + 1) {
          let ak = a[$_get](k);
          let comp = compare(ak, pivot);
          if (comp === 0) continue;
          if (dart.notNull(comp) < 0) {
            if (k !== less) {
              a[$_set](k, a[$_get](less));
              a[$_set](less, ak);
            }
            less = less + 1;
          } else {
            while (true) {
              comp = compare(a[$_get](great), pivot);
              if (dart.notNull(comp) > 0) {
                great = great - 1;
                continue;
              } else if (dart.notNull(comp) < 0) {
                a[$_set](k, a[$_get](less));
                a[$_set]((t$3674 = less, less = t$3674 + 1, t$3674), a[$_get](great));
                a[$_set]((t$3674$ = great, great = t$3674$ - 1, t$3674$), ak);
                break;
              } else {
                a[$_set](k, a[$_get](great));
                a[$_set]((t$3674$0 = great, great = t$3674$0 - 1, t$3674$0), ak);
                break;
              }
            }
          }
        }
      } else {
        for (let k = less; k <= great; k = k + 1) {
          let ak = a[$_get](k);
          let comp_pivot1 = compare(ak, pivot1);
          if (dart.notNull(comp_pivot1) < 0) {
            if (k !== less) {
              a[$_set](k, a[$_get](less));
              a[$_set](less, ak);
            }
            less = less + 1;
          } else {
            let comp_pivot2 = compare(ak, pivot2);
            if (dart.notNull(comp_pivot2) > 0) {
              while (true) {
                let comp = compare(a[$_get](great), pivot2);
                if (dart.notNull(comp) > 0) {
                  great = great - 1;
                  if (great < k) break;
                  continue;
                } else {
                  comp = compare(a[$_get](great), pivot1);
                  if (dart.notNull(comp) < 0) {
                    a[$_set](k, a[$_get](less));
                    a[$_set]((t$3674$1 = less, less = t$3674$1 + 1, t$3674$1), a[$_get](great));
                    a[$_set]((t$3674$2 = great, great = t$3674$2 - 1, t$3674$2), ak);
                  } else {
                    a[$_set](k, a[$_get](great));
                    a[$_set]((t$3674$3 = great, great = t$3674$3 - 1, t$3674$3), ak);
                  }
                  break;
                }
              }
            }
          }
        }
      }
      a[$_set](left, a[$_get](less - 1));
      a[$_set](less - 1, pivot1);
      a[$_set](right, a[$_get](great + 1));
      a[$_set](great + 1, pivot2);
      _internal.Sort._doSort(E, a, left, less - 2, compare);
      _internal.Sort._doSort(E, a, great + 2, right, compare);
      if (pivots_are_equal) {
        return;
      }
      if (less < index1 && great > index5) {
        while (compare(a[$_get](less), pivot1) === 0) {
          less = less + 1;
        }
        while (compare(a[$_get](great), pivot2) === 0) {
          great = great - 1;
        }
        for (let k = less; k <= great; k = k + 1) {
          let ak = a[$_get](k);
          let comp_pivot1 = compare(ak, pivot1);
          if (comp_pivot1 === 0) {
            if (k !== less) {
              a[$_set](k, a[$_get](less));
              a[$_set](less, ak);
            }
            less = less + 1;
          } else {
            let comp_pivot2 = compare(ak, pivot2);
            if (comp_pivot2 === 0) {
              while (true) {
                let comp = compare(a[$_get](great), pivot2);
                if (comp === 0) {
                  great = great - 1;
                  if (great < k) break;
                  continue;
                } else {
                  comp = compare(a[$_get](great), pivot1);
                  if (dart.notNull(comp) < 0) {
                    a[$_set](k, a[$_get](less));
                    a[$_set]((t$3674$4 = less, less = t$3674$4 + 1, t$3674$4), a[$_get](great));
                    a[$_set]((t$3674$5 = great, great = t$3674$5 - 1, t$3674$5), ak);
                  } else {
                    a[$_set](k, a[$_get](great));
                    a[$_set]((t$3674$6 = great, great = t$3674$6 - 1, t$3674$6), ak);
                  }
                  break;
                }
              }
            }
          }
        }
        _internal.Sort._doSort(E, a, less, great, compare);
      } else {
        _internal.Sort._doSort(E, a, less, great, compare);
      }
    }
    static ['_#new#tearOff']() {
      return new _internal.Sort.new();
    }
  };
  (_internal.Sort.new = function() {
    ;
  }).prototype = _internal.Sort.prototype;
  dart.addRtiResources(_internal.Sort, ["_internal|Sort"]);
  dart.setStaticMethodSignature(_internal.Sort, () => ['sort', 'sortRange', '_doSort', '_insertionSort', '_dualPivotQuicksort']);
  dart.setLibraryUri(_internal.Sort, I[36]);
  dart.setStaticFieldSignature(_internal.Sort, () => ['_INSERTION_SORT_THRESHOLD']);
  dart.defineLazy(_internal.Sort, {
    /*_internal.Sort._INSERTION_SORT_THRESHOLD*/get _INSERTION_SORT_THRESHOLD() {
      return 32;
    }
  }, false);
  var _name$2 = dart.privateName(_internal, "Symbol._name");
  _internal.Symbol = class Symbol extends core.Object {
    get [_name$1]() {
      return this[_name$2];
    }
    set [_name$1](value) {
      super[_name$1] = value;
    }
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[51], 19, 23, "name");
      return new _internal.Symbol.new(name);
    }
    static ['_#unvalidated#tearOff'](_name) {
      if (_name == null) dart.nullFailed(I[52], 26, 33, "_name");
      return new _internal.Symbol.unvalidated(_name);
    }
    _equals(other) {
      if (other == null) return false;
      return T$0.Symbol$1()[_is](other) && this[_name$1] == other[_name$1];
    }
    get hashCode() {
      let hash = this._hashCode;
      if (hash != null) return hash;
      hash = 536870911 & 664597 * dart.hashCode(this[_name$1]);
      this._hashCode = hash;
      return hash;
    }
    toString() {
      return "Symbol(\"" + dart.str(this[_name$1]) + "\")";
    }
    static getName(symbol) {
      if (symbol == null) dart.nullFailed(I[52], 35, 32, "symbol");
      return symbol[_name$1];
    }
    static computeUnmangledName(symbol) {
      if (symbol == null) dart.nullFailed(I[51], 35, 45, "symbol");
      return symbol[_name$1];
    }
  };
  (_internal.Symbol.new = function(name) {
    if (name == null) dart.nullFailed(I[51], 19, 23, "name");
    this[_name$2] = name;
    ;
  }).prototype = _internal.Symbol.prototype;
  (_internal.Symbol.unvalidated = function(_name) {
    if (_name == null) dart.nullFailed(I[52], 26, 33, "_name");
    this[_name$2] = _name;
    ;
  }).prototype = _internal.Symbol.prototype;
  dart.addRtiResources(_internal.Symbol, ["_internal|Symbol", "core|Symbol"]);
  dart.setMethodSignature(_internal.Symbol, () => dart.global.Object.setPrototypeOf({
    toString: T$.VoidTodynamic(),
    [$toString]: T$.VoidTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_internal.Symbol))));
  dart.setStaticMethodSignature(_internal.Symbol, () => ['getName', 'computeUnmangledName']);
  dart.setLibraryUri(_internal.Symbol, I[36]);
  dart.setFieldSignature(_internal.Symbol, () => dart.global.Object.setPrototypeOf({[_name$1]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_internal.Symbol))));
  dart.defineExtensionMethods(_internal.Symbol, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_internal.Symbol, ['hashCode']);
  _internal.typeAcceptsNull = function typeAcceptsNull(T) {
    return true || T[_is](null);
  };
  _internal.unsafeCast = function unsafeCast(T, v) {
    return T[_as](v);
  };
  _internal.hexDigitValue = function hexDigitValue(char) {
    if (char == null) dart.nullFailed(I[33], 118, 23, "char");
    if (!(dart.notNull(char) >= 0 && dart.notNull(char) <= 65535)) dart.assertFailed(null, I[33], 119, 10, "char >= 0 && char <= 0xFFFF");
    let digit = (dart.notNull(char) ^ 48) >>> 0;
    if (digit <= 9) return digit;
    let letter = (dart.notNull(char) | 32) >>> 0;
    if (97 <= letter && letter <= 102) return letter - (97 - 10);
    return -1;
  };
  _internal.parseHexByte = function parseHexByte(source, index) {
    if (source == null) dart.nullFailed(I[33], 133, 25, "source");
    if (index == null) dart.nullFailed(I[33], 133, 37, "index");
    if (!(dart.notNull(index) + 2 <= source.length)) dart.assertFailed(null, I[33], 134, 10, "index + 2 <= source.length");
    let digit1 = _internal.hexDigitValue(source[$codeUnitAt](index));
    let digit2 = _internal.hexDigitValue(source[$codeUnitAt](dart.notNull(index) + 1));
    return dart.notNull(digit1) * 16 + dart.notNull(digit2) - (dart.notNull(digit2) & 256);
  };
  _internal.extractTypeArguments = function extractTypeArguments(T, instance, extract) {
    if (extract == null) dart.nullFailed(I[51], 56, 54, "extract");
    return dart.extractTypeArguments(T, instance, extract);
  };
  _internal.checkNotNullable = function checkNotNullable(T, value, name) {
    if (value == null) dart.nullFailed(I[33], 750, 40, "value");
    if (name == null) dart.nullFailed(I[33], 750, 54, "name");
    if (value == null) {
      dart.throw(new (_internal.NotNullableError$(T)).new(name));
    }
    return value;
  };
  _internal.valueOfNonNullableParamWithDefault = function valueOfNonNullableParamWithDefault(T, value, defaultVal) {
    if (value == null) dart.nullFailed(I[33], 774, 58, "value");
    if (defaultVal == null) dart.nullFailed(I[33], 774, 67, "defaultVal");
    if (value == null) {
      return defaultVal;
    } else {
      return value;
    }
  };
  _internal.isToStringVisiting = function isToStringVisiting(object) {
    if (object == null) dart.nullFailed(I[33], 1051, 32, "object");
    for (let i = 0; i < dart.notNull(_internal.toStringVisiting[$length]); i = i + 1) {
      if (core.identical(object, _internal.toStringVisiting[$_get](i))) return true;
    }
    return false;
  };
  _internal._checkCount = function _checkCount(count) {
    if (count == null) dart.nullFailed(I[48], 638, 21, "count");
    core.ArgumentError.checkNotNull(T$.int(), count, "count");
    core.RangeError.checkNotNegative(count, "count");
    return count;
  };
  _internal.makeListFixedLength = function makeListFixedLength(T, growableList) {
    if (growableList == null) dart.nullFailed(I[51], 44, 40, "growableList");
    _interceptors.JSArray.markFixedList(growableList);
    return growableList;
  };
  _internal.makeFixedListUnmodifiable = function makeFixedListUnmodifiable(T, fixedLengthList) {
    if (fixedLengthList == null) dart.nullFailed(I[51], 50, 46, "fixedLengthList");
    _interceptors.JSArray.markUnmodifiableList(fixedLengthList);
    return fixedLengthList;
  };
  _internal.createSentinel = function createSentinel(T) {
    return dart.throw(new core.UnsupportedError.new("createSentinel"));
  };
  _internal.isSentinel = function isSentinel(value) {
    return dart.throw(new core.UnsupportedError.new("isSentinel"));
  };
  _internal.printToConsole = function printToConsole(line) {
    if (line == null) dart.nullFailed(I[51], 39, 28, "line");
    _js_primitives.printString(dart.str(line));
  };
  var pragma_options = dart.privateName(core, "pragma.options");
  var pragma_name = dart.privateName(core, "pragma.name");
  dart.defineLazy(_internal, {
    /*_internal.POWERS_OF_TEN*/get POWERS_OF_TEN() {
      return C[56] || CT.C56;
    },
    /*_internal.nullFuture*/get nullFuture() {
      return async.Zone.root.run(T$0.FutureOfNull(), dart.fn(() => G.FutureOfNull().value(null), T$0.VoidToFutureOfNull()));
    },
    /*_internal.sentinelValue*/get sentinelValue() {
      return C[0] || CT.C0;
    },
    /*_internal.vmIsolateUnsendable*/get vmIsolateUnsendable() {
      return C[57] || CT.C57;
    },
    /*_internal.toStringVisiting*/get toStringVisiting() {
      return G.JSArrayOfObject().of([]);
    },
    /*_internal.patch*/get patch() {
      return C[58] || CT.C58;
    },
    /*_internal.printToZone*/get printToZone() {
      return null;
    },
    set printToZone(value) {}
  }, false);
  var _handle = dart.privateName(_isolate_helper, "_handle");
  var _tick = dart.privateName(_isolate_helper, "_tick");
  var _once = dart.privateName(_isolate_helper, "_once");
  _isolate_helper.TimerImpl = class TimerImpl extends core.Object {
    static ['_#new#tearOff'](milliseconds, callback) {
      if (milliseconds == null) dart.nullFailed(I[53], 40, 17, "milliseconds");
      if (callback == null) dart.nullFailed(I[53], 40, 36, "callback");
      return new _isolate_helper.TimerImpl.new(milliseconds, callback);
    }
    static ['_#periodic#tearOff'](milliseconds, callback) {
      if (milliseconds == null) dart.nullFailed(I[53], 61, 26, "milliseconds");
      if (callback == null) dart.nullFailed(I[53], 61, 45, "callback");
      return new _isolate_helper.TimerImpl.periodic(milliseconds, callback);
    }
    get tick() {
      return this[_tick];
    }
    cancel() {
      if (dart.test(_isolate_helper.hasTimer())) {
        if (this[_handle] == null) return;
        dart.removeAsyncCallback();
        if (dart.test(this[_once])) {
          _isolate_helper.global.clearTimeout(this[_handle]);
        } else {
          _isolate_helper.global.clearInterval(this[_handle]);
        }
        this[_handle] = null;
      } else {
        dart.throw(new core.UnsupportedError.new("Canceling a timer."));
      }
    }
    get isActive() {
      return this[_handle] != null;
    }
  };
  (_isolate_helper.TimerImpl.new = function(milliseconds, callback) {
    if (milliseconds == null) dart.nullFailed(I[53], 40, 17, "milliseconds");
    if (callback == null) dart.nullFailed(I[53], 40, 36, "callback");
    this[_handle] = null;
    this[_tick] = 0;
    this[_once] = true;
    if (dart.test(_isolate_helper.hasTimer())) {
      let currentHotRestartIteration = dart.hotRestartIteration;
      const internalCallback = () => {
        this[_handle] = null;
        dart.removeAsyncCallback();
        this[_tick] = 1;
        if (currentHotRestartIteration == dart.hotRestartIteration) {
          callback();
        }
      };
      dart.fn(internalCallback, T$.VoidTovoid());
      dart.addAsyncCallback();
      this[_handle] = _isolate_helper.global.setTimeout(internalCallback, milliseconds);
    } else {
      dart.throw(new core.UnsupportedError.new("`setTimeout()` not found."));
    }
  }).prototype = _isolate_helper.TimerImpl.prototype;
  (_isolate_helper.TimerImpl.periodic = function(milliseconds, callback) {
    if (milliseconds == null) dart.nullFailed(I[53], 61, 26, "milliseconds");
    if (callback == null) dart.nullFailed(I[53], 61, 45, "callback");
    this[_handle] = null;
    this[_tick] = 0;
    this[_once] = false;
    if (dart.test(_isolate_helper.hasTimer())) {
      dart.addAsyncCallback();
      let start = Date.now();
      let currentHotRestartIteration = dart.hotRestartIteration;
      this[_handle] = _isolate_helper.global.setInterval(dart.fn(() => {
        if (currentHotRestartIteration != dart.hotRestartIteration) {
          this.cancel();
          return;
        }
        let tick = dart.notNull(this[_tick]) + 1;
        if (dart.notNull(milliseconds) > 0) {
          let duration = Date.now() - start;
          if (duration > (tick + 1) * dart.notNull(milliseconds)) {
            tick = (duration / dart.notNull(milliseconds))[$truncate]();
          }
        }
        this[_tick] = tick;
        callback(this);
      }, T$0.VoidToNull()), milliseconds);
    } else {
      dart.throw(new core.UnsupportedError.new("Periodic timer."));
    }
  }).prototype = _isolate_helper.TimerImpl.prototype;
  dart.addRtiResources(_isolate_helper.TimerImpl, ["_isolate_helper|TimerImpl", "async|Timer"]);
  dart.setMethodSignature(_isolate_helper.TimerImpl, () => dart.global.Object.setPrototypeOf({cancel: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_isolate_helper.TimerImpl))));
  dart.setGetterSignature(_isolate_helper.TimerImpl, () => dart.global.Object.setPrototypeOf({
    tick: T$.int(),
    isActive: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_isolate_helper.TimerImpl))));
  dart.setLibraryUri(_isolate_helper.TimerImpl, I[54]);
  dart.setFieldSignature(_isolate_helper.TimerImpl, () => dart.global.Object.setPrototypeOf({
    [_once]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_handle]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_tick]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_isolate_helper.TimerImpl))));
  _isolate_helper.startRootIsolate = function startRootIsolate(main, args) {
    if (args == null) args = G.JSArrayOfString().of([]);
    if (T$.List()[_is](args)) {
      if (!T$0.ListOfString()[_is](args)) args = G.ListOfString().from(args);
      if (typeof main == "function") {
        main(args, null);
      } else {
        dart.dcall(main, [args]);
      }
    } else {
      dart.throw(new core.ArgumentError.new("Arguments to main must be a List: " + dart.str(args)));
    }
  };
  _isolate_helper.hasTimer = function hasTimer() {
    return _isolate_helper.global.setTimeout != null;
  };
  dart.defineLazy(_isolate_helper, {
    /*_isolate_helper.global*/get global() {
      return dart.global;
    }
  }, false);
  var name$5 = dart.privateName(_js_annotations, "JS.name");
  _js_annotations.JS = class JS extends core.Object {
    get name() {
      return this[name$5];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name = null) {
      return new _js_annotations.JS.new(name);
    }
  };
  (_js_annotations.JS.new = function(name = null) {
    this[name$5] = name;
    ;
  }).prototype = _js_annotations.JS.prototype;
  dart.addRtiResources(_js_annotations.JS, ["_js_annotations|JS"]);
  dart.setLibraryUri(_js_annotations.JS, I[55]);
  dart.setFieldSignature(_js_annotations.JS, () => dart.global.Object.setPrototypeOf({name: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_annotations.JS))));
  _js_annotations._Anonymous = class _Anonymous extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_annotations._Anonymous.new();
    }
  };
  (_js_annotations._Anonymous.new = function() {
    ;
  }).prototype = _js_annotations._Anonymous.prototype;
  dart.addRtiResources(_js_annotations._Anonymous, ["_js_annotations|_Anonymous"]);
  dart.setLibraryUri(_js_annotations._Anonymous, I[55]);
  _js_annotations._StaticInterop = class _StaticInterop extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_annotations._StaticInterop.new();
    }
  };
  (_js_annotations._StaticInterop.new = function() {
    ;
  }).prototype = _js_annotations._StaticInterop.prototype;
  dart.addRtiResources(_js_annotations._StaticInterop, ["_js_annotations|_StaticInterop"]);
  dart.setLibraryUri(_js_annotations._StaticInterop, I[55]);
  _js_annotations._TrustTypes = class _TrustTypes extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_annotations._TrustTypes.new();
    }
  };
  (_js_annotations._TrustTypes.new = function() {
    ;
  }).prototype = _js_annotations._TrustTypes.prototype;
  dart.addRtiResources(_js_annotations._TrustTypes, ["_js_annotations|_TrustTypes"]);
  dart.setLibraryUri(_js_annotations._TrustTypes, I[55]);
  var name$6 = dart.privateName(_js_annotations, "JSExport.name");
  _js_annotations.JSExport = class JSExport extends core.Object {
    get name() {
      return this[name$6];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name = "") {
      if (name == null) dart.nullFailed(I[56], 97, 24, "name");
      return new _js_annotations.JSExport.new(name);
    }
  };
  (_js_annotations.JSExport.new = function(name = "") {
    if (name == null) dart.nullFailed(I[56], 97, 24, "name");
    this[name$6] = name;
    ;
  }).prototype = _js_annotations.JSExport.prototype;
  dart.addRtiResources(_js_annotations.JSExport, ["_js_annotations|JSExport"]);
  dart.setLibraryUri(_js_annotations.JSExport, I[55]);
  dart.setFieldSignature(_js_annotations.JSExport, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_annotations.JSExport))));
  dart.defineLazy(_js_annotations, {
    /*_js_annotations.anonymous*/get anonymous() {
      return C[59] || CT.C59;
    },
    /*_js_annotations.staticInterop*/get staticInterop() {
      return C[60] || CT.C60;
    },
    /*_js_annotations.trustTypes*/get trustTypes() {
      return C[61] || CT.C61;
    }
  }, false);
  var _current$0 = dart.privateName(_js_helper, "_current");
  var _jsIterator$ = dart.privateName(_js_helper, "_jsIterator");
  _js_helper.DartIterator$ = dart.generic(E => {
    var __t$DartIteratorOfE = () => (__t$DartIteratorOfE = dart.constFn(E[_eval]("_js_helper|DartIterator<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    class DartIterator extends core.Object {
      static ['_#new#tearOff'](E, _jsIterator) {
        return new (_js_helper.DartIterator$(E)).new(_jsIterator);
      }
      get current() {
        return E[_as](this[_current$0]);
      }
      moveNext() {
        let ret = this[_jsIterator$].next();
        this[_current$0] = ret.value;
        return !ret.done;
      }
    }
    (DartIterator.new = function(_jsIterator) {
      this[_current$0] = null;
      this[_jsIterator$] = _jsIterator;
      this.$ti = this.$ti || __t$DartIteratorOfE();
      ;
    }).prototype = DartIterator.prototype;
    dart.addRtiResources(DartIterator, ["_js_helper|DartIterator", "core|Iterator"]);
    dart.setMethodSignature(DartIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(DartIterator))));
    dart.setGetterSignature(DartIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(DartIterator))));
    dart.setLibraryUri(DartIterator, I[57]);
    dart.setFieldSignature(DartIterator, () => dart.global.Object.setPrototypeOf({
      [_jsIterator$]: {type: T$.dynamic(), isConst: false, isFinal: true},
      [_current$0]: {type: __t$EN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(DartIterator))));
    return DartIterator;
  });
  _js_helper.DartIterator = _js_helper.DartIterator$();
  var _initGenerator$ = dart.privateName(_js_helper, "_initGenerator");
  _js_helper.SyncIterable$ = dart.generic(E => {
    var __t$SyncIterableOfE = () => (__t$SyncIterableOfE = dart.constFn(E[_eval]("_js_helper|SyncIterable<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$DartIteratorOfE = () => (__t$DartIteratorOfE = dart.constFn(_js_helper.DartIterator$(E)))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(core.Iterable$(E)))();
    class SyncIterable extends __t$IterableOfE() {
      static ['_#new#tearOff'](E, _initGenerator) {
        if (_initGenerator == null) dart.nullFailed(I[58], 60, 21, "_initGenerator");
        return new (_js_helper.SyncIterable$(E)).new(_initGenerator);
      }
      [Symbol.iterator]() {
        return this[_initGenerator$]();
      }
      get iterator() {
        return new (__t$DartIteratorOfE()).new(this[_initGenerator$]());
      }
    }
    (SyncIterable.new = function(_initGenerator) {
      if (_initGenerator == null) dart.nullFailed(I[58], 60, 21, "_initGenerator");
      this[_initGenerator$] = _initGenerator;
      this.$ti = this.$ti || __t$SyncIterableOfE();
      dart.global.Object.getPrototypeOf(SyncIterable).new.call(this);
      ;
    }).prototype = SyncIterable.prototype;
    dart.addRtiResources(SyncIterable, ["_js_helper|SyncIterable"]);
    dart.setMethodSignature(SyncIterable, () => dart.global.Object.setPrototypeOf({[Symbol.iterator]: T$.VoidTodynamic()}, dart.getMethods(dart.global.Object.getPrototypeOf(SyncIterable))));
    dart.setGetterSignature(SyncIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(SyncIterable))));
    dart.setLibraryUri(SyncIterable, I[57]);
    dart.setFieldSignature(SyncIterable, () => dart.global.Object.setPrototypeOf({[_initGenerator$]: {type: T$.VoidTodynamic(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(SyncIterable))));
    dart.defineExtensionAccessors(SyncIterable, ['iterator']);
    return SyncIterable;
  });
  _js_helper.SyncIterable = _js_helper.SyncIterable$();
  _js_helper.Primitives = class Primitives extends core.Object {
    static parseInt(source, _radix) {
      if (source == null) dart.argumentError(source);
      let re = /^\s*[+-]?((0x[a-f0-9]+)|(\d+)|([a-z0-9]+))\s*$/i;
      let match = re.exec(source);
      let digitsIndex = 1;
      let hexIndex = 2;
      let decimalIndex = 3;
      if (match == null) {
        return null;
      }
      let decimalMatch = match[$_get](decimalIndex);
      if (_radix == null) {
        if (decimalMatch != null) {
          return parseInt(source, 10);
        }
        if (match[$_get](hexIndex) != null) {
          return parseInt(source, 16);
        }
        return null;
      }
      let radix = _radix;
      if (radix < 2 || radix > 36) {
        dart.throw(new core.RangeError.range(radix, 2, 36, "radix"));
      }
      if (radix === 10 && decimalMatch != null) {
        return parseInt(source, 10);
      }
      if (radix < 10 || decimalMatch == null) {
        let maxCharCode = null;
        if (radix <= 10) {
          maxCharCode = 48 - 1 + radix;
        } else {
          maxCharCode = 97 - 10 - 1 + radix;
        }
        if (!(typeof match[$_get](digitsIndex) == 'string')) dart.assertFailed(null, I[58], 125, 14, "match[digitsIndex] is String");
        let digitsPart = match[digitsIndex];
        for (let i = 0; i < digitsPart.length; i = i + 1) {
          let characterCode = (digitsPart[$codeUnitAt](i) | 32) >>> 0;
          if (characterCode > dart.notNull(maxCharCode)) {
            return null;
          }
        }
      }
      return parseInt(source, radix);
    }
    static parseDouble(source) {
      if (source == null) dart.argumentError(source);
      if (!/^\s*[+-]?(?:Infinity|NaN|(?:\.\d+|\d+(?:\.\d*)?)(?:[eE][+-]?\d+)?)\s*$/.test(source)) {
        return null;
      }
      let result = parseFloat(source);
      if (result[$isNaN]) {
        let trimmed = source[$trim]();
        if (trimmed === "NaN" || trimmed === "+NaN" || trimmed === "-NaN") {
          return result;
        }
        return null;
      }
      return result;
    }
    static parseBool(source, caseSensitive) {
      if (source == null) dart.argumentError(source);
      if (caseSensitive == null) dart.argumentError(caseSensitive);
      if (caseSensitive) {
        return source == "true" || source != "false" && null;
      }
      return dart.test(_js_helper.Primitives._compareIgnoreCase(source, "true")) ? true : dart.test(_js_helper.Primitives._compareIgnoreCase(source, "false")) ? false : null;
    }
    static _compareIgnoreCase(input, lowerCaseTarget) {
      if (input == null) dart.nullFailed(I[58], 180, 41, "input");
      if (lowerCaseTarget == null) dart.nullFailed(I[58], 180, 55, "lowerCaseTarget");
      if (input.length !== lowerCaseTarget.length) return false;
      let delta = 32;
      for (let i = 0; i < input.length; i = i + 1) {
        delta = (delta | (input[$codeUnitAt](i) ^ lowerCaseTarget[$codeUnitAt](i)) >>> 0) >>> 0;
      }
      return delta === 32;
    }
    static stringSafeToString(str) {
      if (str == null) dart.nullFailed(I[58], 189, 43, "str");
      return JSON.stringify(str);
    }
    static safeToString(obj) {
      if (obj == null || typeof obj == 'number' || typeof obj == 'boolean') {
        return dart.toString(obj);
      }
      if (typeof obj == 'string') {
        return _js_helper.Primitives.stringSafeToString(obj);
      }
      if (T$.RecordImpl()[_is](obj)) {
        return dart.recordSafeToString(obj);
      }
      return "Instance of '" + dart.typeName(dart.getReifiedType(obj)) + "'";
    }
    static dateNow() {
      return Date.now();
    }
    static initTicker() {
      if (_js_helper.Primitives.timerFrequency !== 0) return;
      _js_helper.Primitives.timerFrequency = 1000;
      if (typeof window == "undefined") return;
      let jsWindow = window;
      if (jsWindow == null) return;
      let performance = jsWindow.performance;
      if (performance == null) return;
      if (typeof performance.now != "function") return;
      _js_helper.Primitives.timerFrequency = 1000000;
      _js_helper.Primitives.timerTicks = dart.fn(() => (1000 * performance.now())[$floor](), T$.VoidToint());
    }
    static get isD8() {
      return typeof version == "function" && typeof os == "object" && "system" in os;
    }
    static get isJsshell() {
      return typeof version == "function" && typeof system == "function";
    }
    static currentUri() {
      if (!!dart.global.location) {
        return dart.global.location.href;
      }
      return "";
    }
    static _fromCharCodeApply(array) {
      if (array == null) dart.nullFailed(I[58], 254, 46, "array");
      let end = dart.notNull(array[$length]);
      if (end <= 500) {
        return String.fromCharCode.apply(null, array);
      }
      let result = "";
      for (let i = 0; i < end; i = i + 500) {
        let chunkEnd = i + 500 < end ? i + 500 : end;
        result = result + String.fromCharCode.apply(null, array.slice(i, chunkEnd));
      }
      return result;
    }
    static stringFromCodePoints(codePoints) {
      if (codePoints == null) dart.nullFailed(I[58], 276, 51, "codePoints");
      let a = G.JSArrayOfint().of([]);
      for (let i of codePoints) {
        if (i == null) dart.argumentError(i);
        {
          if (i <= 65535) {
            a[$add](i);
          } else if (i <= 1114111) {
            a[$add](55296 + (i - 65536 >> 10 & 1023));
            a[$add](56320 + (i & 1023));
          } else {
            dart.throw(_js_helper.argumentErrorValue(i));
          }
        }
      }
      return _js_helper.Primitives._fromCharCodeApply(a);
    }
    static stringFromCharCodes(charCodes) {
      if (charCodes == null) dart.nullFailed(I[58], 292, 50, "charCodes");
      for (let i of charCodes) {
        if (i == null) dart.argumentError(i);
        {
          if (i < 0) dart.throw(_js_helper.argumentErrorValue(i));
          if (i > 65535) return _js_helper.Primitives.stringFromCodePoints(charCodes);
        }
      }
      return _js_helper.Primitives._fromCharCodeApply(charCodes);
    }
    static stringFromNativeUint8List(charCodes, start, end) {
      if (charCodes == null) dart.nullFailed(I[58], 303, 23, "charCodes");
      if (start == null) dart.argumentError(start);
      if (end == null) dart.argumentError(end);
      if (end <= 500 && start === 0 && end === charCodes[$length]) {
        return String.fromCharCode.apply(null, charCodes);
      }
      let result = "";
      for (let i = start; i < end; i = i + 500) {
        let chunkEnd = i + 500 < end ? i + 500 : end;
        result = result + String.fromCharCode.apply(null, charCodes.subarray(i, chunkEnd));
      }
      return result;
    }
    static stringFromCharCode(charCode) {
      if (charCode == null) dart.argumentError(charCode);
      if (0 <= charCode) {
        if (charCode <= 65535) {
          return String.fromCharCode(charCode);
        }
        if (charCode <= 1114111) {
          let bits = charCode - 65536;
          let low = 56320 | bits & 1023;
          let high = (55296 | bits[$rightShift](10)) >>> 0;
          return String.fromCharCode(high, low);
        }
      }
      dart.throw(new core.RangeError.range(charCode, 0, 1114111));
    }
    static flattenString(str) {
      if (str == null) dart.nullFailed(I[58], 338, 38, "str");
      return str.charCodeAt(0) == 0 ? str : str;
    }
    static getTimeZoneName(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 342, 42, "receiver");
      let d = _js_helper.Primitives.lazyAsJsDate(receiver);
      let match = /\((.*)\)/.exec(d.toString());
      if (match != null) return match[$_get](1);
      match = /^[A-Z,a-z]{3}\s[A-Z,a-z]{3}\s\d+\s\d{2}:\d{2}:\d{2}\s([A-Z]{3,5})\s\d{4}$/.exec(d.toString());
      if (match != null) return match[$_get](1);
      match = /(?:GMT|UTC)[+-]\d{4}/.exec(d.toString());
      if (match != null) return match[$_get](0);
      return "";
    }
    static getTimeZoneOffsetInMinutes(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 382, 50, "receiver");
      return -_js_helper.Primitives.lazyAsJsDate(receiver).getTimezoneOffset();
    }
    static valueFromDecomposedDate(years, month, day, hours, minutes, seconds, milliseconds, microseconds, isUtc) {
      if (years == null) dart.argumentError(years);
      if (month == null) dart.argumentError(month);
      if (day == null) dart.argumentError(day);
      if (hours == null) dart.argumentError(hours);
      if (minutes == null) dart.argumentError(minutes);
      if (seconds == null) dart.argumentError(seconds);
      if (milliseconds == null) dart.argumentError(milliseconds);
      if (microseconds == null) dart.argumentError(microseconds);
      if (isUtc == null) dart.argumentError(isUtc);
      let MAX_MILLISECONDS_SINCE_EPOCH = 8640000000000000;
      let jsMonth = month - 1;
      if (0 <= years && years < 100) {
        years = years + 400;
        jsMonth = jsMonth - 400 * 12;
      }
      let remainder = microseconds[$modulo](1000);
      milliseconds = milliseconds + ((microseconds - remainder) / 1000)[$truncate]();
      microseconds = remainder;
      let value = null;
      if (isUtc) {
        value = Date.UTC(years, jsMonth, day, hours, minutes, seconds, milliseconds);
      } else {
        value = new Date(years, jsMonth, day, hours, minutes, seconds, milliseconds).valueOf();
      }
      if (value[$isNaN] || dart.notNull(value) < -MAX_MILLISECONDS_SINCE_EPOCH || dart.notNull(value) > MAX_MILLISECONDS_SINCE_EPOCH || value === MAX_MILLISECONDS_SINCE_EPOCH && microseconds !== 0) {
        return null;
      }
      return value;
    }
    static lazyAsJsDate(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 430, 32, "receiver");
      if (receiver.date === void 0) {
        receiver.date = new Date(receiver.millisecondsSinceEpoch);
      }
      return receiver.date;
    }
    static getYear(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 442, 31, "receiver");
      return dart.test(receiver.isUtc) ? _js_helper.Primitives.lazyAsJsDate(receiver).getUTCFullYear() + 0 : _js_helper.Primitives.lazyAsJsDate(receiver).getFullYear() + 0;
    }
    static getMonth(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 448, 32, "receiver");
      return dart.test(receiver.isUtc) ? _js_helper.Primitives.lazyAsJsDate(receiver).getUTCMonth() + 1 : _js_helper.Primitives.lazyAsJsDate(receiver).getMonth() + 1;
    }
    static getDay(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 454, 30, "receiver");
      return dart.test(receiver.isUtc) ? _js_helper.Primitives.lazyAsJsDate(receiver).getUTCDate() + 0 : _js_helper.Primitives.lazyAsJsDate(receiver).getDate() + 0;
    }
    static getHours(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 460, 32, "receiver");
      return dart.test(receiver.isUtc) ? _js_helper.Primitives.lazyAsJsDate(receiver).getUTCHours() + 0 : _js_helper.Primitives.lazyAsJsDate(receiver).getHours() + 0;
    }
    static getMinutes(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 466, 34, "receiver");
      return dart.test(receiver.isUtc) ? _js_helper.Primitives.lazyAsJsDate(receiver).getUTCMinutes() + 0 : _js_helper.Primitives.lazyAsJsDate(receiver).getMinutes() + 0;
    }
    static getSeconds(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 472, 34, "receiver");
      return dart.test(receiver.isUtc) ? _js_helper.Primitives.lazyAsJsDate(receiver).getUTCSeconds() + 0 : _js_helper.Primitives.lazyAsJsDate(receiver).getSeconds() + 0;
    }
    static getMilliseconds(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 478, 39, "receiver");
      return dart.test(receiver.isUtc) ? _js_helper.Primitives.lazyAsJsDate(receiver).getUTCMilliseconds() + 0 : _js_helper.Primitives.lazyAsJsDate(receiver).getMilliseconds() + 0;
    }
    static getWeekday(receiver) {
      if (receiver == null) dart.nullFailed(I[58], 484, 34, "receiver");
      let weekday = dart.test(receiver.isUtc) ? _js_helper.Primitives.lazyAsJsDate(receiver).getUTCDay() + 0 : _js_helper.Primitives.lazyAsJsDate(receiver).getDay() + 0;
      return (weekday + 6)[$modulo](7) + 1;
    }
    static getProperty(object, key) {
      if (key == null) dart.nullFailed(I[58], 492, 53, "key");
      if (object == null || typeof object == 'boolean' || typeof object == 'number' || typeof object == 'string') {
        dart.throw(_js_helper.argumentErrorValue(object));
      }
      return object[key];
    }
    static setProperty(object, key, value) {
      if (object == null || typeof object == 'boolean' || typeof object == 'number' || typeof object == 'string') {
        dart.throw(_js_helper.argumentErrorValue(object));
      }
      object[key] = value;
    }
    static ['_#new#tearOff']() {
      return new _js_helper.Primitives.new();
    }
  };
  (_js_helper.Primitives.new = function() {
    ;
  }).prototype = _js_helper.Primitives.prototype;
  dart.addRtiResources(_js_helper.Primitives, ["_js_helper|Primitives"]);
  dart.setStaticMethodSignature(_js_helper.Primitives, () => ['parseInt', 'parseDouble', 'parseBool', '_compareIgnoreCase', 'stringSafeToString', 'safeToString', 'dateNow', 'initTicker', 'currentUri', '_fromCharCodeApply', 'stringFromCodePoints', 'stringFromCharCodes', 'stringFromNativeUint8List', 'stringFromCharCode', 'flattenString', 'getTimeZoneName', 'getTimeZoneOffsetInMinutes', 'valueFromDecomposedDate', 'lazyAsJsDate', 'getYear', 'getMonth', 'getDay', 'getHours', 'getMinutes', 'getSeconds', 'getMilliseconds', 'getWeekday', 'getProperty', 'setProperty']);
  dart.setStaticGetterSignature(_js_helper.Primitives, () => ['isD8', 'isJsshell']);
  dart.setLibraryUri(_js_helper.Primitives, I[57]);
  dart.setStaticFieldSignature(_js_helper.Primitives, () => ['DOLLAR_CHAR_VALUE', 'timerFrequency', 'timerTicks']);
  dart.defineLazy(_js_helper.Primitives, {
    /*_js_helper.Primitives.DOLLAR_CHAR_VALUE*/get DOLLAR_CHAR_VALUE() {
      return 36;
    },
    /*_js_helper.Primitives.timerFrequency*/get timerFrequency() {
      return 0;
    },
    set timerFrequency(value) {
      if (value == null) dart.nullFailed(I[58], 226, 14, "timerFrequency");
    },
    /*_js_helper.Primitives.timerTicks*/get timerTicks() {
      return C[62] || CT.C62;
    },
    set timerTicks(value) {
      if (value == null) dart.nullFailed(I[58], 227, 25, "timerTicks");
    }
  }, false);
  var _receiver$0 = dart.privateName(_js_helper, "JsNoSuchMethodError._receiver");
  var _message$1 = dart.privateName(_js_helper, "_message");
  var _method = dart.privateName(_js_helper, "_method");
  var _receiver$1 = dart.privateName(_js_helper, "_receiver");
  var _memberName$0 = dart.privateName(_js_helper, "_memberName");
  var _arguments$0 = dart.privateName(_js_helper, "_arguments");
  var _namedArguments$0 = dart.privateName(_js_helper, "_namedArguments");
  var _invocation$0 = dart.privateName(_js_helper, "_invocation");
  _js_helper.JsNoSuchMethodError = class JsNoSuchMethodError extends core.Error {
    get [_receiver$1]() {
      return this[_receiver$0];
    }
    set [_receiver$1](value) {
      super[_receiver$1] = value;
    }
    static ['_#new#tearOff'](_message, match) {
      return new _js_helper.JsNoSuchMethodError.new(_message, match);
    }
    toString() {
      if (this[_method] == null) return "NoSuchMethodError: " + dart.str(this[_message$1]);
      if (this[_receiver$1] == null) {
        return "NoSuchMethodError: method not found: '" + dart.str(this[_method]) + "' (" + dart.str(this[_message$1]) + ")";
      }
      return "NoSuchMethodError: " + "method not found: '" + dart.str(this[_method]) + "' on '" + dart.str(this[_receiver$1]) + "' (" + dart.str(this[_message$1]) + ")";
    }
    get [_receiver$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[63] || CT.C63)));
    }
    get [_memberName$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[64] || CT.C64)));
    }
    get [_arguments$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[65] || CT.C65)));
    }
    get [_namedArguments$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[66] || CT.C66)));
    }
    get [_invocation$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[67] || CT.C67)));
    }
  };
  (_js_helper.JsNoSuchMethodError.new = function(_message, match) {
    this[_message$1] = _message;
    this[_method] = match == null ? null : match.method;
    this[_receiver$0] = match == null ? null : match.receiver;
    dart.global.Object.getPrototypeOf(_js_helper.JsNoSuchMethodError).new.call(this);
    ;
  }).prototype = _js_helper.JsNoSuchMethodError.prototype;
  dart.addRtiResources(_js_helper.JsNoSuchMethodError, ["_js_helper|JsNoSuchMethodError", "core|NoSuchMethodError", "core|Error"]);
  dart.setGetterSignature(_js_helper.JsNoSuchMethodError, () => dart.global.Object.setPrototypeOf({
    [_receiver$]: T$.ObjectN(),
    [_memberName$]: T$.Symbol(),
    [_arguments$]: T$.ListN(),
    [_namedArguments$]: T$.MapNOfSymbol$dynamic(),
    [_invocation$]: T$.InvocationN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_js_helper.JsNoSuchMethodError))));
  dart.setLibraryUri(_js_helper.JsNoSuchMethodError, I[57]);
  dart.setFieldSignature(_js_helper.JsNoSuchMethodError, () => dart.global.Object.setPrototypeOf({
    [_message$1]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_method]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_receiver$1]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.JsNoSuchMethodError))));
  dart.defineExtensionMethods(_js_helper.JsNoSuchMethodError, ['toString']);
  _js_helper.UnknownJsTypeError = class UnknownJsTypeError extends core.Error {
    static ['_#new#tearOff'](_message) {
      if (_message == null) dart.nullFailed(I[58], 589, 27, "_message");
      return new _js_helper.UnknownJsTypeError.new(_message);
    }
    toString() {
      return this[_message$1][$isEmpty] ? "Error" : "Error: " + dart.str(this[_message$1]);
    }
  };
  (_js_helper.UnknownJsTypeError.new = function(_message) {
    if (_message == null) dart.nullFailed(I[58], 589, 27, "_message");
    this[_message$1] = _message;
    dart.global.Object.getPrototypeOf(_js_helper.UnknownJsTypeError).new.call(this);
    ;
  }).prototype = _js_helper.UnknownJsTypeError.prototype;
  dart.addRtiResources(_js_helper.UnknownJsTypeError, ["_js_helper|UnknownJsTypeError"]);
  dart.setLibraryUri(_js_helper.UnknownJsTypeError, I[57]);
  dart.setFieldSignature(_js_helper.UnknownJsTypeError, () => dart.global.Object.setPrototypeOf({[_message$1]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.UnknownJsTypeError))));
  dart.defineExtensionMethods(_js_helper.UnknownJsTypeError, ['toString']);
  var types$0 = dart.privateName(_js_helper, "Creates.types");
  _js_helper.Creates = class Creates extends core.Object {
    get types() {
      return this[types$0];
    }
    set types(value) {
      super.types = value;
    }
    static ['_#new#tearOff'](types) {
      if (types == null) dart.nullFailed(I[58], 653, 22, "types");
      return new _js_helper.Creates.new(types);
    }
  };
  (_js_helper.Creates.new = function(types) {
    if (types == null) dart.nullFailed(I[58], 653, 22, "types");
    this[types$0] = types;
    ;
  }).prototype = _js_helper.Creates.prototype;
  dart.addRtiResources(_js_helper.Creates, ["_js_helper|Creates"]);
  dart.setLibraryUri(_js_helper.Creates, I[57]);
  dart.setFieldSignature(_js_helper.Creates, () => dart.global.Object.setPrototypeOf({types: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.Creates))));
  var types$1 = dart.privateName(_js_helper, "Returns.types");
  _js_helper.Returns = class Returns extends core.Object {
    get types() {
      return this[types$1];
    }
    set types(value) {
      super.types = value;
    }
    static ['_#new#tearOff'](types) {
      if (types == null) dart.nullFailed(I[58], 677, 22, "types");
      return new _js_helper.Returns.new(types);
    }
  };
  (_js_helper.Returns.new = function(types) {
    if (types == null) dart.nullFailed(I[58], 677, 22, "types");
    this[types$1] = types;
    ;
  }).prototype = _js_helper.Returns.prototype;
  dart.addRtiResources(_js_helper.Returns, ["_js_helper|Returns"]);
  dart.setLibraryUri(_js_helper.Returns, I[57]);
  dart.setFieldSignature(_js_helper.Returns, () => dart.global.Object.setPrototypeOf({types: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.Returns))));
  var name$7 = dart.privateName(_js_helper, "JSName.name");
  _js_helper.JSName = class JSName extends core.Object {
    get name() {
      return this[name$7];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[58], 692, 21, "name");
      return new _js_helper.JSName.new(name);
    }
  };
  (_js_helper.JSName.new = function(name) {
    if (name == null) dart.nullFailed(I[58], 692, 21, "name");
    this[name$7] = name;
    ;
  }).prototype = _js_helper.JSName.prototype;
  dart.addRtiResources(_js_helper.JSName, ["_js_helper|JSName"]);
  dart.setLibraryUri(_js_helper.JSName, I[57]);
  dart.setFieldSignature(_js_helper.JSName, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.JSName))));
  _js_helper.JavaScriptIndexingBehavior$ = dart.generic(E => {
    var __t$JavaScriptIndexingBehaviorOfE = () => (__t$JavaScriptIndexingBehaviorOfE = dart.constFn(E[_eval]("_js_helper|JavaScriptIndexingBehavior<0>")))();
    var __t$JSMutableIndexableOfE = () => (__t$JSMutableIndexableOfE = dart.constFn(_interceptors.JSMutableIndexable$(E)))();
    class JavaScriptIndexingBehavior extends __t$JSMutableIndexableOfE() {}
    (JavaScriptIndexingBehavior.new = function() {
      this.$ti = this.$ti || __t$JavaScriptIndexingBehaviorOfE();
      ;
    }).prototype = JavaScriptIndexingBehavior.prototype;
    dart.addRtiResources(JavaScriptIndexingBehavior, ["_js_helper|JavaScriptIndexingBehavior"]);
    dart.setLibraryUri(JavaScriptIndexingBehavior, I[57]);
    return JavaScriptIndexingBehavior;
  });
  _js_helper.JavaScriptIndexingBehavior = _js_helper.JavaScriptIndexingBehavior$();
  _js_helper.TypeErrorImpl = class TypeErrorImpl extends core.Error {
    static ['_#new#tearOff'](_message) {
      if (_message == null) dart.nullFailed(I[58], 704, 22, "_message");
      return new _js_helper.TypeErrorImpl.new(_message);
    }
    toString() {
      return this[_message$1];
    }
  };
  (_js_helper.TypeErrorImpl.new = function(_message) {
    if (_message == null) dart.nullFailed(I[58], 704, 22, "_message");
    this[_message$1] = _message;
    dart.global.Object.getPrototypeOf(_js_helper.TypeErrorImpl).new.call(this);
    ;
  }).prototype = _js_helper.TypeErrorImpl.prototype;
  dart.addRtiResources(_js_helper.TypeErrorImpl, ["_js_helper|TypeErrorImpl", "core|TypeError", "core|Error"]);
  dart.setLibraryUri(_js_helper.TypeErrorImpl, I[57]);
  dart.setFieldSignature(_js_helper.TypeErrorImpl, () => dart.global.Object.setPrototypeOf({[_message$1]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.TypeErrorImpl))));
  dart.defineExtensionMethods(_js_helper.TypeErrorImpl, ['toString']);
  var message$ = dart.privateName(_js_helper, "RuntimeError.message");
  _js_helper.RuntimeError = class RuntimeError extends core.Error {
    get message() {
      return this[message$];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message) {
      return new _js_helper.RuntimeError.new(message);
    }
    toString() {
      return "RuntimeError: " + dart.str(this.message);
    }
  };
  (_js_helper.RuntimeError.new = function(message) {
    this[message$] = message;
    dart.global.Object.getPrototypeOf(_js_helper.RuntimeError).new.call(this);
    ;
  }).prototype = _js_helper.RuntimeError.prototype;
  dart.addRtiResources(_js_helper.RuntimeError, ["_js_helper|RuntimeError"]);
  dart.setLibraryUri(_js_helper.RuntimeError, I[57]);
  dart.setFieldSignature(_js_helper.RuntimeError, () => dart.global.Object.setPrototypeOf({message: {type: T$.dynamic(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.RuntimeError))));
  dart.defineExtensionMethods(_js_helper.RuntimeError, ['toString']);
  var enclosingLibrary$ = dart.privateName(_js_helper, "DeferredNotLoadedError.enclosingLibrary");
  var importPrefix$ = dart.privateName(_js_helper, "DeferredNotLoadedError.importPrefix");
  _js_helper.DeferredNotLoadedError = class DeferredNotLoadedError extends core.Error {
    get enclosingLibrary() {
      return this[enclosingLibrary$];
    }
    set enclosingLibrary(value) {
      if (value == null) dart.nullFailed(I[58], 717, 10, "enclosingLibrary");
      this[enclosingLibrary$] = value;
    }
    get importPrefix() {
      return this[importPrefix$];
    }
    set importPrefix(value) {
      if (value == null) dart.nullFailed(I[58], 718, 10, "importPrefix");
      this[importPrefix$] = value;
    }
    static ['_#new#tearOff'](enclosingLibrary, importPrefix) {
      if (enclosingLibrary == null) dart.nullFailed(I[58], 720, 31, "enclosingLibrary");
      if (importPrefix == null) dart.nullFailed(I[58], 720, 54, "importPrefix");
      return new _js_helper.DeferredNotLoadedError.new(enclosingLibrary, importPrefix);
    }
    toString() {
      return "Deferred import " + dart.str(this.importPrefix) + " (from " + dart.str(this.enclosingLibrary) + ") was not loaded.";
    }
    get [_receiver$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[63] || CT.C63)));
    }
    get [_memberName$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[64] || CT.C64)));
    }
    get [_arguments$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[65] || CT.C65)));
    }
    get [_namedArguments$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[66] || CT.C66)));
    }
    get [_invocation$]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[67] || CT.C67)));
    }
  };
  (_js_helper.DeferredNotLoadedError.new = function(enclosingLibrary, importPrefix) {
    if (enclosingLibrary == null) dart.nullFailed(I[58], 720, 31, "enclosingLibrary");
    if (importPrefix == null) dart.nullFailed(I[58], 720, 54, "importPrefix");
    this[enclosingLibrary$] = enclosingLibrary;
    this[importPrefix$] = importPrefix;
    dart.global.Object.getPrototypeOf(_js_helper.DeferredNotLoadedError).new.call(this);
    ;
  }).prototype = _js_helper.DeferredNotLoadedError.prototype;
  dart.addRtiResources(_js_helper.DeferredNotLoadedError, ["_js_helper|DeferredNotLoadedError", "core|NoSuchMethodError", "core|Error"]);
  dart.setGetterSignature(_js_helper.DeferredNotLoadedError, () => dart.global.Object.setPrototypeOf({
    [_receiver$]: T$.ObjectN(),
    [_memberName$]: T$.Symbol(),
    [_arguments$]: T$.ListN(),
    [_namedArguments$]: T$.MapNOfSymbol$dynamic(),
    [_invocation$]: T$.InvocationN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_js_helper.DeferredNotLoadedError))));
  dart.setLibraryUri(_js_helper.DeferredNotLoadedError, I[57]);
  dart.setFieldSignature(_js_helper.DeferredNotLoadedError, () => dart.global.Object.setPrototypeOf({
    enclosingLibrary: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    importPrefix: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.DeferredNotLoadedError))));
  dart.defineExtensionMethods(_js_helper.DeferredNotLoadedError, ['toString']);
  var _fileUri$ = dart.privateName(_js_helper, "_fileUri");
  var _line$ = dart.privateName(_js_helper, "_line");
  var _column$ = dart.privateName(_js_helper, "_column");
  var _conditionSource$ = dart.privateName(_js_helper, "_conditionSource");
  var message$0 = dart.privateName(core, "AssertionError.message");
  core.AssertionError = class AssertionError extends core.Error {
    get message() {
      return this[message$0];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message = null) {
      return new core.AssertionError.new(message);
    }
    toString() {
      if (this.message != null) {
        return "Assertion failed: " + dart.str(core.Error.safeToString(this.message));
      }
      return "Assertion failed";
    }
  };
  (core.AssertionError.new = function(message = null) {
    this[message$0] = message;
    dart.global.Object.getPrototypeOf(core.AssertionError).new.call(this);
    ;
  }).prototype = core.AssertionError.prototype;
  dart.addRtiResources(core.AssertionError, ["core|AssertionError"]);
  dart.setLibraryUri(core.AssertionError, I[11]);
  dart.setFieldSignature(core.AssertionError, () => dart.global.Object.setPrototypeOf({message: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core.AssertionError))));
  dart.defineExtensionMethods(core.AssertionError, ['toString']);
  _js_helper.AssertionErrorImpl = class AssertionErrorImpl extends core.AssertionError {
    static ['_#new#tearOff'](message, _fileUri = null, _line = null, _column = null, _conditionSource = null) {
      return new _js_helper.AssertionErrorImpl.new(message, _fileUri, _line, _column, _conditionSource);
    }
    toString() {
      let failureMessage = "";
      if (this[_fileUri$] != null && this[_line$] != null && this[_column$] != null && this[_conditionSource$] != null) {
        failureMessage = failureMessage + (dart.str(this[_fileUri$]) + ":" + dart.str(this[_line$]) + ":" + dart.str(this[_column$]) + "\n" + dart.str(this[_conditionSource$]) + "\n");
      }
      failureMessage = failureMessage + dart.notNull(this.message != null ? core.Error.safeToString(this.message) : "is not true");
      return "Assertion failed: " + failureMessage;
    }
  };
  (_js_helper.AssertionErrorImpl.new = function(message, _fileUri = null, _line = null, _column = null, _conditionSource = null) {
    this[_fileUri$] = _fileUri;
    this[_line$] = _line;
    this[_column$] = _column;
    this[_conditionSource$] = _conditionSource;
    dart.global.Object.getPrototypeOf(_js_helper.AssertionErrorImpl).new.call(this, message);
    ;
  }).prototype = _js_helper.AssertionErrorImpl.prototype;
  dart.addRtiResources(_js_helper.AssertionErrorImpl, ["_js_helper|AssertionErrorImpl"]);
  dart.setLibraryUri(_js_helper.AssertionErrorImpl, I[57]);
  dart.setFieldSignature(_js_helper.AssertionErrorImpl, () => dart.global.Object.setPrototypeOf({
    [_fileUri$]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_line$]: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_column$]: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_conditionSource$]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.AssertionErrorImpl))));
  dart.defineExtensionMethods(_js_helper.AssertionErrorImpl, ['toString']);
  _js_helper.BooleanConversionAssertionError = class BooleanConversionAssertionError extends core.AssertionError {
    toString() {
      return "Failed assertion: boolean expression must not be null";
    }
    static ['_#new#tearOff']() {
      return new _js_helper.BooleanConversionAssertionError.new();
    }
  };
  (_js_helper.BooleanConversionAssertionError.new = function() {
    dart.global.Object.getPrototypeOf(_js_helper.BooleanConversionAssertionError).new.call(this);
    ;
  }).prototype = _js_helper.BooleanConversionAssertionError.prototype;
  dart.addRtiResources(_js_helper.BooleanConversionAssertionError, ["_js_helper|BooleanConversionAssertionError"]);
  dart.setLibraryUri(_js_helper.BooleanConversionAssertionError, I[57]);
  dart.defineExtensionMethods(_js_helper.BooleanConversionAssertionError, ['toString']);
  var _name$3 = dart.privateName(_js_helper, "PrivateSymbol._name");
  var _nativeSymbol$ = dart.privateName(_js_helper, "PrivateSymbol._nativeSymbol");
  var _name = dart.privateName(_js_helper, "_name");
  var _nativeSymbol = dart.privateName(_js_helper, "_nativeSymbol");
  _js_helper.PrivateSymbol = class PrivateSymbol extends core.Object {
    get [_name]() {
      return this[_name$3];
    }
    set [_name](value) {
      super[_name] = value;
    }
    get [_nativeSymbol]() {
      return this[_nativeSymbol$];
    }
    set [_nativeSymbol](value) {
      super[_nativeSymbol] = value;
    }
    static ['_#new#tearOff'](_name, _nativeSymbol) {
      if (_name == null) dart.nullFailed(I[58], 799, 28, "_name");
      if (_nativeSymbol == null) dart.nullFailed(I[58], 799, 40, "_nativeSymbol");
      return new _js_helper.PrivateSymbol.new(_name, _nativeSymbol);
    }
    static getName(symbol) {
      if (symbol == null) dart.nullFailed(I[58], 801, 32, "symbol");
      return T$0.PrivateSymbol()[_as](symbol)[_name];
    }
    static getNativeSymbol(symbol) {
      if (symbol == null) dart.nullFailed(I[58], 803, 41, "symbol");
      if (T$0.PrivateSymbol()[_is](symbol)) return symbol[_nativeSymbol];
      return null;
    }
    _equals(other) {
      if (other == null) return false;
      return T$0.PrivateSymbol()[_is](other) && this[_name] == other[_name] && core.identical(this[_nativeSymbol], other[_nativeSymbol]);
    }
    get hashCode() {
      return dart.hashCode(this[_name]);
    }
    toString() {
      return "Symbol(\"" + dart.str(this[_name]) + "\")";
    }
  };
  (_js_helper.PrivateSymbol.new = function(_name, _nativeSymbol) {
    if (_name == null) dart.nullFailed(I[58], 799, 28, "_name");
    if (_nativeSymbol == null) dart.nullFailed(I[58], 799, 40, "_nativeSymbol");
    this[_name$3] = _name;
    this[_nativeSymbol$] = _nativeSymbol;
    ;
  }).prototype = _js_helper.PrivateSymbol.prototype;
  dart.addRtiResources(_js_helper.PrivateSymbol, ["_js_helper|PrivateSymbol", "core|Symbol"]);
  dart.setStaticMethodSignature(_js_helper.PrivateSymbol, () => ['getName', 'getNativeSymbol']);
  dart.setLibraryUri(_js_helper.PrivateSymbol, I[57]);
  dart.setFieldSignature(_js_helper.PrivateSymbol, () => dart.global.Object.setPrototypeOf({
    [_name]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_nativeSymbol]: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.PrivateSymbol))));
  dart.defineExtensionMethods(_js_helper.PrivateSymbol, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_js_helper.PrivateSymbol, ['hashCode']);
  _js_helper.TrustedGetRuntimeType = class TrustedGetRuntimeType extends core.Object {};
  (_js_helper.TrustedGetRuntimeType.new = function() {
    ;
  }).prototype = _js_helper.TrustedGetRuntimeType.prototype;
  dart.addRtiResources(_js_helper.TrustedGetRuntimeType, ["_js_helper|TrustedGetRuntimeType"]);
  dart.setLibraryUri(_js_helper.TrustedGetRuntimeType, I[57]);
  _js_helper.ForceInline = class ForceInline extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_helper.ForceInline.new();
    }
  };
  (_js_helper.ForceInline.new = function() {
    ;
  }).prototype = _js_helper.ForceInline.prototype;
  dart.addRtiResources(_js_helper.ForceInline, ["_js_helper|ForceInline"]);
  dart.setLibraryUri(_js_helper.ForceInline, I[57]);
  _js_helper._NotNull = class _NotNull extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_helper._NotNull.new();
    }
  };
  (_js_helper._NotNull.new = function() {
    ;
  }).prototype = _js_helper._NotNull.prototype;
  dart.addRtiResources(_js_helper._NotNull, ["_js_helper|_NotNull"]);
  dart.setLibraryUri(_js_helper._NotNull, I[57]);
  _js_helper.NoReifyGeneric = class NoReifyGeneric extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_helper.NoReifyGeneric.new();
    }
  };
  (_js_helper.NoReifyGeneric.new = function() {
    ;
  }).prototype = _js_helper.NoReifyGeneric.prototype;
  dart.addRtiResources(_js_helper.NoReifyGeneric, ["_js_helper|NoReifyGeneric"]);
  dart.setLibraryUri(_js_helper.NoReifyGeneric, I[57]);
  var value$1 = dart.privateName(_js_helper, "ReifyFunctionTypes.value");
  _js_helper.ReifyFunctionTypes = class ReifyFunctionTypes extends core.Object {
    get value() {
      return this[value$1];
    }
    set value(value) {
      super.value = value;
    }
    static ['_#new#tearOff'](value) {
      if (value == null) dart.nullFailed(I[59], 39, 33, "value");
      return new _js_helper.ReifyFunctionTypes.new(value);
    }
  };
  (_js_helper.ReifyFunctionTypes.new = function(value) {
    if (value == null) dart.nullFailed(I[59], 39, 33, "value");
    this[value$1] = value;
    ;
  }).prototype = _js_helper.ReifyFunctionTypes.prototype;
  dart.addRtiResources(_js_helper.ReifyFunctionTypes, ["_js_helper|ReifyFunctionTypes"]);
  dart.setLibraryUri(_js_helper.ReifyFunctionTypes, I[57]);
  dart.setFieldSignature(_js_helper.ReifyFunctionTypes, () => dart.global.Object.setPrototypeOf({value: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.ReifyFunctionTypes))));
  _js_helper._NullCheck = class _NullCheck extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_helper._NullCheck.new();
    }
  };
  (_js_helper._NullCheck.new = function() {
    ;
  }).prototype = _js_helper._NullCheck.prototype;
  dart.addRtiResources(_js_helper._NullCheck, ["_js_helper|_NullCheck"]);
  dart.setLibraryUri(_js_helper._NullCheck, I[57]);
  _js_helper._Undefined = class _Undefined extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_helper._Undefined.new();
    }
  };
  (_js_helper._Undefined.new = function() {
    ;
  }).prototype = _js_helper._Undefined.prototype;
  dart.addRtiResources(_js_helper._Undefined, ["_js_helper|_Undefined"]);
  dart.setLibraryUri(_js_helper._Undefined, I[57]);
  var name$8 = dart.privateName(_js_helper, "Native.name");
  _js_helper.Native = class Native extends core.Object {
    get name() {
      return this[name$8];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[59], 65, 21, "name");
      return new _js_helper.Native.new(name);
    }
  };
  (_js_helper.Native.new = function(name) {
    if (name == null) dart.nullFailed(I[59], 65, 21, "name");
    this[name$8] = name;
    ;
  }).prototype = _js_helper.Native.prototype;
  dart.addRtiResources(_js_helper.Native, ["_js_helper|Native"]);
  dart.setLibraryUri(_js_helper.Native, I[57]);
  dart.setFieldSignature(_js_helper.Native, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.Native))));
  var name$9 = dart.privateName(_js_helper, "JsPeerInterface.name");
  _js_helper.JsPeerInterface = class JsPeerInterface extends core.Object {
    get name() {
      return this[name$9];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](opts) {
      let name = opts && 'name' in opts ? opts.name : null;
      if (name == null) dart.nullFailed(I[59], 73, 40, "name");
      return new _js_helper.JsPeerInterface.new({name: name});
    }
  };
  (_js_helper.JsPeerInterface.new = function(opts) {
    let name = opts && 'name' in opts ? opts.name : null;
    if (name == null) dart.nullFailed(I[59], 73, 40, "name");
    this[name$9] = name;
    ;
  }).prototype = _js_helper.JsPeerInterface.prototype;
  dart.addRtiResources(_js_helper.JsPeerInterface, ["_js_helper|JsPeerInterface"]);
  dart.setLibraryUri(_js_helper.JsPeerInterface, I[57]);
  dart.setFieldSignature(_js_helper.JsPeerInterface, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.JsPeerInterface))));
  _js_helper.SupportJsExtensionMethods = class SupportJsExtensionMethods extends core.Object {
    static ['_#new#tearOff']() {
      return new _js_helper.SupportJsExtensionMethods.new();
    }
  };
  (_js_helper.SupportJsExtensionMethods.new = function() {
    ;
  }).prototype = _js_helper.SupportJsExtensionMethods.prototype;
  dart.addRtiResources(_js_helper.SupportJsExtensionMethods, ["_js_helper|SupportJsExtensionMethods"]);
  dart.setLibraryUri(_js_helper.SupportJsExtensionMethods, I[57]);
  var _modifications = dart.privateName(_js_helper, "_modifications");
  var _map$ = dart.privateName(_js_helper, "_map");
  _js_helper.InternalMap$ = dart.generic((K, V) => {
    var __t$InternalMapOfK$V = () => (__t$InternalMapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("_js_helper|InternalMap<1,2>")))();
    var __t$MapBaseOfK$V = () => (__t$MapBaseOfK$V = dart.constFn(collection.MapBase$(K, V)))();
    class InternalMap extends __t$MapBaseOfK$V() {
      forEach(action) {
        if (action == null) dart.nullFailed(I[60], 18, 21, "action");
        let modifications = this[_modifications];
        for (let entry of this[_map$].entries()) {
          action(entry[0], entry[1]);
          if (modifications !== this[_modifications]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
        }
      }
    }
    (InternalMap.new = function() {
      this.$ti = this.$ti || __t$InternalMapOfK$V();
      dart.global.Object.getPrototypeOf(InternalMap).new.call(this);
      ;
    }).prototype = InternalMap.prototype;
    dart.addRtiResources(InternalMap, ["_js_helper|InternalMap", "collection|LinkedHashMap", "collection|HashMap", "core|Map", "core|Map"]);
    dart.setLibraryUri(InternalMap, I[57]);
    dart.defineExtensionMethods(InternalMap, ['forEach']);
    return InternalMap;
  });
  _js_helper.InternalMap = _js_helper.InternalMap$();
  var _map = dart.privateName(_js_helper, "LinkedMap._map");
  var _modifications$ = dart.privateName(_js_helper, "LinkedMap._modifications");
  var _keyMap = dart.privateName(_js_helper, "_keyMap");
  _js_helper.LinkedMap$ = dart.generic((K, V) => {
    var __t$LinkedMapOfK$V = () => (__t$LinkedMapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("_js_helper|LinkedMap<1,2>")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$KAndVTovoid = () => (__t$KAndVTovoid = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(1,2)")))();
    var __t$IterableOfK = () => (__t$IterableOfK = dart.constFn(K[_eval]("core|Iterable<0>")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$_JSMapIterableOfK = () => (__t$_JSMapIterableOfK = dart.constFn(_js_helper._JSMapIterable$(K)))();
    var __t$InternalMapOfK$V = () => (__t$InternalMapOfK$V = dart.constFn(_js_helper.InternalMap$(K, V)))();
    var __t$_JSMapIterableOfV = () => (__t$_JSMapIterableOfV = dart.constFn(_js_helper._JSMapIterable$(V)))();
    class LinkedMap extends __t$InternalMapOfK$V() {
      get [_map$]() {
        return this[_map];
      }
      set [_map$](value) {
        super[_map$] = value;
      }
      get [_modifications]() {
        return this[_modifications$];
      }
      set [_modifications](value) {
        this[_modifications$] = value;
      }
      static ['_#new#tearOff'](K, V) {
        return new (_js_helper.LinkedMap$(K, V)).new();
      }
      static ['_#from#tearOff'](K, V, entries) {
        if (entries == null) dart.nullFailed(I[60], 68, 26, "entries");
        return new (_js_helper.LinkedMap$(K, V)).from(entries);
      }
      get length() {
        return this[_map$].size;
      }
      get isEmpty() {
        return this[_map$].size == 0;
      }
      get isNotEmpty() {
        return this[_map$].size != 0;
      }
      get keys() {
        return new (__t$_JSMapIterableOfK()).new(this, true);
      }
      get values() {
        return new (__t$_JSMapIterableOfV()).new(this, false);
      }
      containsKey(key) {
        if (key == null) {
          key = null;
        } else if (key[$_equals] !== dart.identityEquals) {
          let buckets = this[_keyMap].get(dart.hashCode(key) & 0x3fffffff);
          if (buckets != null) {
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              let k = buckets[i];
              if (dart.equals(k, key)) return true;
            }
          }
          return false;
        }
        return this[_map$].has(key);
      }
      containsValue(value) {
        for (let v of this[_map$].values()) {
          if (dart.equals(v, value)) return true;
        }
        return false;
      }
      addAll(other) {
        __t$MapOfK$V()[_as](other);
        if (other == null) dart.nullFailed(I[60], 121, 25, "other");
        let map = this[_map$];
        let length = map.size;
        other[$forEach](dart.fn((key, value) => {
          if (key == null) {
            key = null;
          } else if (key[$_equals] !== dart.identityEquals) {
            key = _js_helper.putLinkedMapKey(key, this[_keyMap]);
          }
          this[_map$].set(key, value);
        }, __t$KAndVTovoid()));
        if (length !== map.size) {
          this[_modifications] = this[_modifications] + 1 & 1073741823;
        }
      }
      _get(key) {
        if (key == null) {
          key = null;
        } else if (key[$_equals] !== dart.identityEquals) {
          let buckets = this[_keyMap].get(dart.hashCode(key) & 0x3fffffff);
          if (buckets != null) {
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              let k = buckets[i];
              if (dart.equals(k, key)) return this[_map$].get(k);
            }
          }
          return null;
        }
        let value = this[_map$].get(key);
        return value === void 0 ? null : value;
      }
      _set(key, value$) {
        let value = value$;
        K[_as](key);
        V[_as](value);
        if (key == null) {
          key = null;
        } else if (key[$_equals] !== dart.identityEquals) {
          key = _js_helper.putLinkedMapKey(key, this[_keyMap]);
        }
        let map = this[_map$];
        let length = map.size;
        map.set(key, value);
        if (length !== map.size) {
          this[_modifications] = this[_modifications] + 1 & 1073741823;
        }
        return value$;
      }
      putIfAbsent(key, ifAbsent) {
        K[_as](key);
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[60], 172, 26, "ifAbsent");
        let map = this[_map$];
        if (key == null) {
          key = null;
          if (map.has(null)) return map.get(null);
        } else if (key[$_equals] !== dart.identityEquals) {
          let k = key;
          let hash = dart.hashCode(k) & 0x3fffffff;
          let buckets = this[_keyMap].get(hash);
          if (buckets == null) {
            this[_keyMap].set(hash, [key]);
          } else {
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              k = buckets[i];
              if (dart.equals(k, key)) return map.get(k);
            }
            buckets.push(key);
          }
        } else if (map.has(key)) {
          return map.get(key);
        }
        let value = ifAbsent();
        if (value == null) {
          value = null;
        }
        map.set(key, value);
        this[_modifications] = this[_modifications] + 1 & 1073741823;
        return value;
      }
      remove(key) {
        if (key == null) {
          key = null;
        } else if (key[$_equals] !== dart.identityEquals) {
          let hash = dart.hashCode(key) & 0x3fffffff;
          let buckets = this[_keyMap].get(hash);
          if (buckets == null) return null;
          for (let i = 0, n = buckets.length;;) {
            let k = buckets[i];
            if (dart.equals(k, key)) {
              key = k;
              if (n === 1) {
                this[_keyMap].delete(hash);
              } else {
                buckets.splice(i, 1);
              }
              break;
            }
            if ((i = i + 1) >= n) return null;
          }
        }
        let map = this[_map$];
        let value = map.get(key);
        if (map.delete(key)) {
          this[_modifications] = this[_modifications] + 1 & 1073741823;
        }
        return value === void 0 ? null : value;
      }
      clear() {
        let map = this[_map$];
        if (map.size > 0) {
          map.clear();
          this[_keyMap].clear();
          this[_modifications] = this[_modifications] + 1 & 1073741823;
        }
      }
    }
    (LinkedMap.new = function() {
      this[_map] = new Map();
      this[_keyMap] = new Map();
      this[_modifications$] = 0;
      this.$ti = this.$ti || __t$LinkedMapOfK$V();
      dart.global.Object.getPrototypeOf(LinkedMap).new.call(this);
      ;
    }).prototype = LinkedMap.prototype;
    (LinkedMap.from = function(entries) {
      if (entries == null) dart.nullFailed(I[60], 68, 26, "entries");
      this[_map] = new Map();
      this[_keyMap] = new Map();
      this[_modifications$] = 0;
      this.$ti = this.$ti || __t$LinkedMapOfK$V();
      dart.global.Object.getPrototypeOf(LinkedMap).new.call(this);
      let map = this[_map$];
      let keyMap = this[_keyMap];
      for (let i = 0, n = entries.length; i < n; i = i + 2) {
        let key = entries[i];
        let value = entries[i + 1];
        if (key == null) {
          key = null;
        } else if (key[$_equals] !== dart.identityEquals) {
          key = _js_helper.putLinkedMapKey(key, keyMap);
        }
        map.set(key, value);
      }
    }).prototype = LinkedMap.prototype;
    dart.addRtiResources(LinkedMap, ["_js_helper|LinkedMap"]);
    dart.setMethodSignature(LinkedMap, () => dart.global.Object.setPrototypeOf({
      _get: __t$ObjectNToVN(),
      [$_get]: __t$ObjectNToVN(),
      _set: T$.ObjectNAndObjectNTovoid(),
      [$_set]: T$.ObjectNAndObjectNTovoid(),
      remove: __t$ObjectNToVN(),
      [$remove]: __t$ObjectNToVN(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(LinkedMap))));
    dart.setGetterSignature(LinkedMap, () => dart.global.Object.setPrototypeOf({
      keys: __t$IterableOfK(),
      [$keys]: __t$IterableOfK()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(LinkedMap))));
    dart.setLibraryUri(LinkedMap, I[57]);
    dart.setFieldSignature(LinkedMap, () => dart.global.Object.setPrototypeOf({
      [_map$]: {type: T$.dynamic(), isConst: false, isFinal: true},
      [_keyMap]: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_modifications]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(LinkedMap))));
    dart.defineExtensionMethods(LinkedMap, [
      'containsKey',
      'containsValue',
      'addAll',
      '_get',
      '_set',
      'putIfAbsent',
      'remove',
      'clear'
    ]);
    dart.defineExtensionAccessors(LinkedMap, [
      'length',
      'isEmpty',
      'isNotEmpty',
      'keys',
      'values'
    ]);
    return LinkedMap;
  });
  _js_helper.LinkedMap = _js_helper.LinkedMap$();
  _js_helper.ImmutableMap$ = dart.generic((K, V) => {
    var __t$ImmutableMapOfK$V = () => (__t$ImmutableMapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("_js_helper|ImmutableMap<1,2>")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$LinkedMapOfK$V = () => (__t$LinkedMapOfK$V = dart.constFn(_js_helper.LinkedMap$(K, V)))();
    class ImmutableMap extends __t$LinkedMapOfK$V() {
      static ['_#from#tearOff'](K, V, entries) {
        if (entries == null) dart.nullFailed(I[60], 264, 29, "entries");
        return new (_js_helper.ImmutableMap$(K, V)).from(entries);
      }
      _set(key, value$) {
        let value = value$;
        K[_as](key);
        V[_as](value);
        dart.throw(_js_helper.ImmutableMap._unsupported());
        return value$;
      }
      addAll(other) {
        T$.Object()[_as](other);
        if (other == null) dart.nullFailed(I[60], 270, 22, "other");
        return dart.throw(_js_helper.ImmutableMap._unsupported());
      }
      clear() {
        return dart.throw(_js_helper.ImmutableMap._unsupported());
      }
      remove(key) {
        return dart.throw(_js_helper.ImmutableMap._unsupported());
      }
      putIfAbsent(key, ifAbsent) {
        K[_as](key);
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[60], 273, 26, "ifAbsent");
        return dart.throw(_js_helper.ImmutableMap._unsupported());
      }
      static _unsupported() {
        return new core.UnsupportedError.new("Cannot modify unmodifiable map");
      }
    }
    (ImmutableMap.from = function(entries) {
      if (entries == null) dart.nullFailed(I[60], 264, 29, "entries");
      this.$ti = this.$ti || __t$ImmutableMapOfK$V();
      dart.global.Object.getPrototypeOf(ImmutableMap).from.call(this, entries);
      ;
    }).prototype = ImmutableMap.prototype;
    dart.addRtiResources(ImmutableMap, ["_js_helper|ImmutableMap"]);
    dart.setStaticMethodSignature(ImmutableMap, () => ['_unsupported']);
    dart.setLibraryUri(ImmutableMap, I[57]);
    dart.defineExtensionMethods(ImmutableMap, [
      '_set',
      'addAll',
      'clear',
      'remove',
      'putIfAbsent'
    ]);
    return ImmutableMap;
  });
  _js_helper.ImmutableMap = _js_helper.ImmutableMap$();
  var _map$0 = dart.privateName(_js_helper, "IdentityMap._map");
  var _modifications$0 = dart.privateName(_js_helper, "IdentityMap._modifications");
  _js_helper.IdentityMap$ = dart.generic((K, V) => {
    var __t$IdentityMapOfK$V = () => (__t$IdentityMapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("_js_helper|IdentityMap<1,2>")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$KAndVTovoid = () => (__t$KAndVTovoid = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(1,2)")))();
    var __t$IterableOfK = () => (__t$IterableOfK = dart.constFn(K[_eval]("core|Iterable<0>")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$_JSMapIterableOfK = () => (__t$_JSMapIterableOfK = dart.constFn(_js_helper._JSMapIterable$(K)))();
    var __t$InternalMapOfK$V = () => (__t$InternalMapOfK$V = dart.constFn(_js_helper.InternalMap$(K, V)))();
    var __t$_JSMapIterableOfV = () => (__t$_JSMapIterableOfV = dart.constFn(_js_helper._JSMapIterable$(V)))();
    class IdentityMap extends __t$InternalMapOfK$V() {
      get [_map$]() {
        return this[_map$0];
      }
      set [_map$](value) {
        super[_map$] = value;
      }
      get [_modifications]() {
        return this[_modifications$0];
      }
      set [_modifications](value) {
        this[_modifications$0] = value;
      }
      static ['_#new#tearOff'](K, V) {
        return new (_js_helper.IdentityMap$(K, V)).new();
      }
      static ['_#from#tearOff'](K, V, entries) {
        if (entries == null) dart.nullFailed(I[61], 22, 28, "entries");
        return new (_js_helper.IdentityMap$(K, V)).from(entries);
      }
      get length() {
        return this[_map$].size;
      }
      get isEmpty() {
        return this[_map$].size == 0;
      }
      get isNotEmpty() {
        return this[_map$].size != 0;
      }
      get keys() {
        return new (__t$_JSMapIterableOfK()).new(this, true);
      }
      get values() {
        return new (__t$_JSMapIterableOfV()).new(this, false);
      }
      containsKey(key) {
        return this[_map$].has(key);
      }
      containsValue(value) {
        for (let v of this[_map$].values()) {
          if (dart.equals(v, value)) return true;
        }
        return false;
      }
      addAll(other) {
        __t$MapOfK$V()[_as](other);
        if (other == null) dart.nullFailed(I[61], 47, 25, "other");
        if (dart.test(other[$isNotEmpty])) {
          let map = this[_map$];
          other[$forEach](dart.fn((key, value) => {
            map.set(key, value);
          }, __t$KAndVTovoid()));
          this[_modifications] = this[_modifications] + 1 & 1073741823;
        }
      }
      _get(key) {
        let value = this[_map$].get(key);
        return value === void 0 ? null : value;
      }
      _set(key, value$) {
        let value = value$;
        K[_as](key);
        V[_as](value);
        let map = this[_map$];
        let length = map.size;
        map.set(key, value);
        if (length !== map.size) {
          this[_modifications] = this[_modifications] + 1 & 1073741823;
        }
        return value$;
      }
      putIfAbsent(key, ifAbsent) {
        K[_as](key);
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[61], 72, 26, "ifAbsent");
        if (this[_map$].has(key)) {
          return this[_map$].get(key);
        }
        let value = ifAbsent();
        if (value == null) value = null;
        this[_map$].set(key, value);
        this[_modifications] = this[_modifications] + 1 & 1073741823;
        return value;
      }
      remove(key) {
        let value = this[_map$].get(key);
        if (this[_map$].delete(key)) {
          this[_modifications] = this[_modifications] + 1 & 1073741823;
        }
        return value === void 0 ? null : value;
      }
      clear() {
        if (this[_map$].size > 0) {
          this[_map$].clear();
          this[_modifications] = this[_modifications] + 1 & 1073741823;
        }
      }
    }
    (IdentityMap.new = function() {
      this[_map$0] = new Map();
      this[_modifications$0] = 0;
      this.$ti = this.$ti || __t$IdentityMapOfK$V();
      dart.global.Object.getPrototypeOf(IdentityMap).new.call(this);
      ;
    }).prototype = IdentityMap.prototype;
    (IdentityMap.from = function(entries) {
      if (entries == null) dart.nullFailed(I[61], 22, 28, "entries");
      this[_map$0] = new Map();
      this[_modifications$0] = 0;
      this.$ti = this.$ti || __t$IdentityMapOfK$V();
      dart.global.Object.getPrototypeOf(IdentityMap).new.call(this);
      let map = this[_map$];
      for (let i = 0, n = entries.length; i < n; i = i + 2) {
        map.set(entries[i], entries[i + 1]);
      }
    }).prototype = IdentityMap.prototype;
    dart.addRtiResources(IdentityMap, ["_js_helper|IdentityMap"]);
    dart.setMethodSignature(IdentityMap, () => dart.global.Object.setPrototypeOf({
      _get: __t$ObjectNToVN(),
      [$_get]: __t$ObjectNToVN(),
      _set: T$.ObjectNAndObjectNTovoid(),
      [$_set]: T$.ObjectNAndObjectNTovoid(),
      remove: __t$ObjectNToVN(),
      [$remove]: __t$ObjectNToVN(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(IdentityMap))));
    dart.setGetterSignature(IdentityMap, () => dart.global.Object.setPrototypeOf({
      keys: __t$IterableOfK(),
      [$keys]: __t$IterableOfK()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(IdentityMap))));
    dart.setLibraryUri(IdentityMap, I[57]);
    dart.setFieldSignature(IdentityMap, () => dart.global.Object.setPrototypeOf({
      [_map$]: {type: T$.dynamic(), isConst: false, isFinal: true},
      [_modifications]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(IdentityMap))));
    dart.defineExtensionMethods(IdentityMap, [
      'containsKey',
      'containsValue',
      'addAll',
      '_get',
      '_set',
      'putIfAbsent',
      'remove',
      'clear'
    ]);
    dart.defineExtensionAccessors(IdentityMap, [
      'length',
      'isEmpty',
      'isNotEmpty',
      'keys',
      'values'
    ]);
    return IdentityMap;
  });
  _js_helper.IdentityMap = _js_helper.IdentityMap$();
  var _isKeys$ = dart.privateName(_js_helper, "_isKeys");
  _js_helper._JSMapIterable$ = dart.generic(E => {
    var __t$_JSMapIterableOfE = () => (__t$_JSMapIterableOfE = dart.constFn(E[_eval]("_js_helper|_JSMapIterable<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$DartIteratorOfE = () => (__t$DartIteratorOfE = dart.constFn(_js_helper.DartIterator$(E)))();
    var __t$EfficientLengthIterableOfE = () => (__t$EfficientLengthIterableOfE = dart.constFn(_internal.EfficientLengthIterable$(E)))();
    class _JSMapIterable extends __t$EfficientLengthIterableOfE() {
      static ['_#new#tearOff'](E, _map, _isKeys) {
        if (_map == null) dart.nullFailed(I[61], 105, 23, "_map");
        if (_isKeys == null) dart.nullFailed(I[61], 105, 34, "_isKeys");
        return new (_js_helper._JSMapIterable$(E)).new(_map, _isKeys);
      }
      get length() {
        return this[_map$][$length];
      }
      get isEmpty() {
        return this[_map$][$isEmpty];
      }
      get isNotEmpty() {
        return this[_map$][$isNotEmpty];
      }
      [Symbol.iterator]() {
        let map = this[_map$];
        let iterator = this[_isKeys$] ? map[_map$].keys() : map[_map$].values();
        let modifications = map[_modifications];
        return {
          next() {
            if (modifications != map[_modifications]) {
              throw new core.ConcurrentModificationError.new(map);
            }
            return iterator.next();
          }
        };
      }
      get iterator() {
        return new (__t$DartIteratorOfE()).new(this[Symbol.iterator]());
      }
      contains(element) {
        return this[_isKeys$] ? this[_map$][$containsKey](element) : this[_map$][$containsValue](element);
      }
      forEach(f) {
        if (f == null) dart.nullFailed(I[61], 138, 33, "f");
        for (let entry of this)
          f(entry);
      }
    }
    (_JSMapIterable.new = function(_map, _isKeys) {
      if (_map == null) dart.nullFailed(I[61], 105, 23, "_map");
      if (_isKeys == null) dart.nullFailed(I[61], 105, 34, "_isKeys");
      this[_map$] = _map;
      this[_isKeys$] = _isKeys;
      this.$ti = this.$ti || __t$_JSMapIterableOfE();
      dart.global.Object.getPrototypeOf(_JSMapIterable).new.call(this);
      ;
    }).prototype = _JSMapIterable.prototype;
    dart.addRtiResources(_JSMapIterable, ["_js_helper|_JSMapIterable", "_internal|HideEfficientLengthIterable", "core|Iterable"]);
    dart.setMethodSignature(_JSMapIterable, () => dart.global.Object.setPrototypeOf({[Symbol.iterator]: T$.VoidTodynamic()}, dart.getMethods(dart.global.Object.getPrototypeOf(_JSMapIterable))));
    dart.setGetterSignature(_JSMapIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_JSMapIterable))));
    dart.setLibraryUri(_JSMapIterable, I[57]);
    dart.setFieldSignature(_JSMapIterable, () => dart.global.Object.setPrototypeOf({
      [_map$]: {type: T$.InternalMap(), isConst: false, isFinal: true, libraryUri: I[57]},
      [_isKeys$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_JSMapIterable))));
    dart.defineExtensionMethods(_JSMapIterable, ['contains', 'forEach']);
    dart.defineExtensionAccessors(_JSMapIterable, ['length', 'isEmpty', 'isNotEmpty', 'iterator']);
    return _JSMapIterable;
  });
  _js_helper._JSMapIterable = _js_helper._JSMapIterable$();
  var _validKey$ = dart.privateName(_js_helper, "_validKey");
  var _map$1 = dart.privateName(_js_helper, "CustomHashMap._map");
  var _modifications$1 = dart.privateName(_js_helper, "CustomHashMap._modifications");
  var _equals$ = dart.privateName(_js_helper, "_equals");
  var _hashCode$ = dart.privateName(_js_helper, "_hashCode");
  _js_helper.CustomHashMap$ = dart.generic((K, V) => {
    var __t$CustomHashMapOfK$V = () => (__t$CustomHashMapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("_js_helper|CustomHashMap<1,2>")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$KAndVTovoid = () => (__t$KAndVTovoid = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(1,2)")))();
    var __t$IterableOfK = () => (__t$IterableOfK = dart.constFn(K[_eval]("core|Iterable<0>")))();
    var __t$KAndKTobool = () => (__t$KAndKTobool = dart.constFn(K[_eval]("core|bool(0,0)")))();
    var __t$KToint = () => (__t$KToint = dart.constFn(K[_eval]("core|int(0)")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$_JSMapIterableOfK = () => (__t$_JSMapIterableOfK = dart.constFn(_js_helper._JSMapIterable$(K)))();
    var __t$InternalMapOfK$V = () => (__t$InternalMapOfK$V = dart.constFn(_js_helper.InternalMap$(K, V)))();
    var __t$_JSMapIterableOfV = () => (__t$_JSMapIterableOfV = dart.constFn(_js_helper._JSMapIterable$(V)))();
    class CustomHashMap extends __t$InternalMapOfK$V() {
      get [_map$]() {
        return this[_map$1];
      }
      set [_map$](value) {
        super[_map$] = value;
      }
      get [_modifications]() {
        return this[_modifications$1];
      }
      set [_modifications](value) {
        this[_modifications$1] = value;
      }
      static ['_#new#tearOff'](K, V, _equals, _hashCode) {
        if (_equals == null) dart.nullFailed(I[62], 55, 22, "_equals");
        if (_hashCode == null) dart.nullFailed(I[62], 55, 36, "_hashCode");
        return new (_js_helper.CustomHashMap$(K, V)).new(_equals, _hashCode);
      }
      get length() {
        return this[_map$].size;
      }
      get isEmpty() {
        return this[_map$].size == 0;
      }
      get isNotEmpty() {
        return this[_map$].size != 0;
      }
      get keys() {
        return new (__t$_JSMapIterableOfK()).new(this, true);
      }
      get values() {
        return new (__t$_JSMapIterableOfV()).new(this, false);
      }
      containsKey(key) {
        let t$3674;
        if (K[_is](key)) {
          let buckets = this[_keyMap].get((t$3674 = key, this[_hashCode$](t$3674)) & 0x3fffffff);
          if (buckets != null) {
            let equals = this[_equals$];
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              let k = buckets[i];
              if (dart.test(equals(k, key))) return true;
            }
          }
        }
        return false;
      }
      containsValue(value) {
        for (let v of this[_map$].values()) {
          if (dart.equals(value, v)) return true;
        }
        return false;
      }
      addAll(other) {
        __t$MapOfK$V()[_as](other);
        if (other == null) dart.nullFailed(I[62], 91, 25, "other");
        other[$forEach](dart.fn((key, value) => {
          this._set(key, value);
        }, __t$KAndVTovoid()));
      }
      _get(key) {
        let t$3674;
        if (K[_is](key)) {
          let buckets = this[_keyMap].get((t$3674 = key, this[_hashCode$](t$3674)) & 0x3fffffff);
          if (buckets != null) {
            let equals = this[_equals$];
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              let k = buckets[i];
              if (dart.test(equals(k, key))) {
                let value = this[_map$].get(k);
                return value === void 0 ? null : value;
              }
            }
          }
        }
        return null;
      }
      _set(key, value$) {
        let value = value$;
        let t$3674;
        K[_as](key);
        V[_as](value);
        let keyMap = this[_keyMap];
        let hash = (t$3674 = key, this[_hashCode$](t$3674)) & 0x3fffffff;
        let buckets = keyMap.get(hash);
        if (buckets == null) {
          keyMap.set(hash, [key]);
        } else {
          let equals = this[_equals$];
          for (let i = 0, n = buckets.length;;) {
            let k = buckets[i];
            if (dart.test(equals(k, key))) {
              key = k;
              break;
            }
            if ((i = i + 1) >= n) {
              buckets.push(key);
              break;
            }
          }
        }
        this[_map$].set(key, value);
        this[_modifications] = this[_modifications] + 1 & 1073741823;
        return value$;
      }
      putIfAbsent(key, ifAbsent) {
        let t$3674;
        K[_as](key);
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[62], 139, 26, "ifAbsent");
        let keyMap = this[_keyMap];
        let hash = (t$3674 = key, this[_hashCode$](t$3674)) & 0x3fffffff;
        let buckets = keyMap.get(hash);
        if (buckets == null) {
          keyMap.set(hash, [key]);
        } else {
          let equals = this[_equals$];
          for (let i = 0, n = buckets.length; i < n; i = i + 1) {
            let k = buckets[i];
            if (dart.test(equals(k, key))) return this[_map$].get(k);
          }
          buckets.push(key);
        }
        let value = ifAbsent();
        if (value == null) value = null;
        this[_map$].set(key, value);
        this[_modifications] = this[_modifications] + 1 & 1073741823;
        return value;
      }
      remove(key) {
        let t$3674;
        if (K[_is](key)) {
          let hash = (t$3674 = key, this[_hashCode$](t$3674)) & 0x3fffffff;
          let keyMap = this[_keyMap];
          let buckets = keyMap.get(hash);
          if (buckets == null) return null;
          let equals = this[_equals$];
          for (let i = 0, n = buckets.length; i < n; i = i + 1) {
            let k = buckets[i];
            if (dart.test(equals(k, key))) {
              if (n === 1) {
                keyMap.delete(hash);
              } else {
                buckets.splice(i, 1);
              }
              let map = this[_map$];
              let value = map.get(k);
              map.delete(k);
              this[_modifications] = this[_modifications] + 1 & 1073741823;
              return value === void 0 ? null : value;
            }
          }
        }
        return null;
      }
      clear() {
        let map = this[_map$];
        if (map.size > 0) {
          map.clear();
          this[_keyMap].clear();
          this[_modifications] = this[_modifications] + 1 & 1073741823;
        }
      }
    }
    (CustomHashMap.new = function(_equals, _hashCode) {
      if (_equals == null) dart.nullFailed(I[62], 55, 22, "_equals");
      if (_hashCode == null) dart.nullFailed(I[62], 55, 36, "_hashCode");
      this[_map$1] = new Map();
      this[_keyMap] = new Map();
      this[_modifications$1] = 0;
      this[_equals$] = _equals;
      this[_hashCode$] = _hashCode;
      this.$ti = this.$ti || __t$CustomHashMapOfK$V();
      dart.global.Object.getPrototypeOf(CustomHashMap).new.call(this);
      ;
    }).prototype = CustomHashMap.prototype;
    dart.addRtiResources(CustomHashMap, ["_js_helper|CustomHashMap"]);
    dart.setMethodSignature(CustomHashMap, () => dart.global.Object.setPrototypeOf({
      _get: __t$ObjectNToVN(),
      [$_get]: __t$ObjectNToVN(),
      _set: T$.ObjectNAndObjectNTovoid(),
      [$_set]: T$.ObjectNAndObjectNTovoid(),
      remove: __t$ObjectNToVN(),
      [$remove]: __t$ObjectNToVN(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(CustomHashMap))));
    dart.setGetterSignature(CustomHashMap, () => dart.global.Object.setPrototypeOf({
      keys: __t$IterableOfK(),
      [$keys]: __t$IterableOfK()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(CustomHashMap))));
    dart.setLibraryUri(CustomHashMap, I[57]);
    dart.setFieldSignature(CustomHashMap, () => dart.global.Object.setPrototypeOf({
      [_map$]: {type: T$.dynamic(), isConst: false, isFinal: true},
      [_keyMap]: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_modifications]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_equals$]: {type: __t$KAndKTobool(), isConst: false, isFinal: true},
      [_hashCode$]: {type: __t$KToint(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(CustomHashMap))));
    dart.defineExtensionMethods(CustomHashMap, [
      'containsKey',
      'containsValue',
      'addAll',
      '_get',
      '_set',
      'putIfAbsent',
      'remove',
      'clear'
    ]);
    dart.defineExtensionAccessors(CustomHashMap, [
      'length',
      'isEmpty',
      'isNotEmpty',
      'keys',
      'values'
    ]);
    return CustomHashMap;
  });
  _js_helper.CustomHashMap = _js_helper.CustomHashMap$();
  _js_helper.CustomKeyHashMap$ = dart.generic((K, V) => {
    var __t$CustomKeyHashMapOfK$V = () => (__t$CustomKeyHashMapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("_js_helper|CustomKeyHashMap<1,2>")))();
    var __t$CustomHashMapOfK$V = () => (__t$CustomHashMapOfK$V = dart.constFn(_js_helper.CustomHashMap$(K, V)))();
    class CustomKeyHashMap extends __t$CustomHashMapOfK$V() {
      static ['_#new#tearOff'](K, V, equals, hashCode, _validKey) {
        if (equals == null) dart.nullFailed(I[62], 9, 33, "equals");
        if (hashCode == null) dart.nullFailed(I[62], 9, 52, "hashCode");
        if (_validKey == null) dart.nullFailed(I[62], 9, 67, "_validKey");
        return new (_js_helper.CustomKeyHashMap$(K, V)).new(equals, hashCode, _validKey);
      }
      containsKey(key) {
        let t$3674;
        if (!dart.test((t$3674 = key, this[_validKey$](t$3674)))) return false;
        return super.containsKey(key);
      }
      _get(key) {
        let t$3674;
        if (!dart.test((t$3674 = key, this[_validKey$](t$3674)))) return null;
        return super._get(key);
      }
      remove(key) {
        let t$3674;
        if (!dart.test((t$3674 = key, this[_validKey$](t$3674)))) return null;
        return super.remove(key);
      }
    }
    (CustomKeyHashMap.new = function(equals, hashCode, _validKey) {
      if (equals == null) dart.nullFailed(I[62], 9, 33, "equals");
      if (hashCode == null) dart.nullFailed(I[62], 9, 52, "hashCode");
      if (_validKey == null) dart.nullFailed(I[62], 9, 67, "_validKey");
      this[_validKey$] = _validKey;
      this.$ti = this.$ti || __t$CustomKeyHashMapOfK$V();
      dart.global.Object.getPrototypeOf(CustomKeyHashMap).new.call(this, equals, hashCode);
      ;
    }).prototype = CustomKeyHashMap.prototype;
    dart.addRtiResources(CustomKeyHashMap, ["_js_helper|CustomKeyHashMap"]);
    dart.setLibraryUri(CustomKeyHashMap, I[57]);
    dart.setFieldSignature(CustomKeyHashMap, () => dart.global.Object.setPrototypeOf({[_validKey$]: {type: T$.ObjectNTobool(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(CustomKeyHashMap))));
    dart.defineExtensionMethods(CustomKeyHashMap, ['containsKey', '_get', 'remove']);
    return CustomKeyHashMap;
  });
  _js_helper.CustomKeyHashMap = _js_helper.CustomKeyHashMap$();
  var pattern = dart.privateName(_js_helper, "JSSyntaxRegExp.pattern");
  var _nativeGlobalRegExp = dart.privateName(_js_helper, "_nativeGlobalRegExp");
  var _nativeAnchoredRegExp = dart.privateName(_js_helper, "_nativeAnchoredRegExp");
  var _nativeRegExp = dart.privateName(_js_helper, "_nativeRegExp");
  var _isMultiLine = dart.privateName(_js_helper, "_isMultiLine");
  var _isCaseSensitive = dart.privateName(_js_helper, "_isCaseSensitive");
  var _isUnicode = dart.privateName(_js_helper, "_isUnicode");
  var _isDotAll = dart.privateName(_js_helper, "_isDotAll");
  var _nativeGlobalVersion = dart.privateName(_js_helper, "_nativeGlobalVersion");
  var _nativeAnchoredVersion = dart.privateName(_js_helper, "_nativeAnchoredVersion");
  var _execGlobal = dart.privateName(_js_helper, "_execGlobal");
  var _execAnchored = dart.privateName(_js_helper, "_execAnchored");
  _js_helper.JSSyntaxRegExp = class JSSyntaxRegExp extends core.Object {
    get pattern() {
      return this[pattern];
    }
    set pattern(value) {
      super.pattern = value;
    }
    toString() {
      return "RegExp/" + dart.str(this.pattern) + "/" + this[_nativeRegExp].flags;
    }
    static ['_#new#tearOff'](source, opts) {
      if (source == null) dart.nullFailed(I[63], 49, 25, "source");
      let multiLine = opts && 'multiLine' in opts ? opts.multiLine : false;
      if (multiLine == null) dart.nullFailed(I[63], 50, 13, "multiLine");
      let caseSensitive = opts && 'caseSensitive' in opts ? opts.caseSensitive : true;
      if (caseSensitive == null) dart.nullFailed(I[63], 51, 12, "caseSensitive");
      let unicode = opts && 'unicode' in opts ? opts.unicode : false;
      if (unicode == null) dart.nullFailed(I[63], 52, 12, "unicode");
      let dotAll = opts && 'dotAll' in opts ? opts.dotAll : false;
      if (dotAll == null) dart.nullFailed(I[63], 53, 12, "dotAll");
      return new _js_helper.JSSyntaxRegExp.new(source, {multiLine: multiLine, caseSensitive: caseSensitive, unicode: unicode, dotAll: dotAll});
    }
    get [_nativeGlobalVersion]() {
      if (this[_nativeGlobalRegExp] != null) return this[_nativeGlobalRegExp];
      return this[_nativeGlobalRegExp] = _js_helper.JSSyntaxRegExp.makeNative(this.pattern, this[_isMultiLine], this[_isCaseSensitive], this[_isUnicode], this[_isDotAll], true);
    }
    get [_nativeAnchoredVersion]() {
      if (this[_nativeAnchoredRegExp] != null) return this[_nativeAnchoredRegExp];
      return this[_nativeAnchoredRegExp] = _js_helper.JSSyntaxRegExp.makeNative(dart.str(this.pattern) + "|()", this[_isMultiLine], this[_isCaseSensitive], this[_isUnicode], this[_isDotAll], true);
    }
    get [_isMultiLine]() {
      return this[_nativeRegExp].multiline;
    }
    get [_isCaseSensitive]() {
      return !this[_nativeRegExp].ignoreCase;
    }
    get [_isUnicode]() {
      return this[_nativeRegExp].unicode;
    }
    get [_isDotAll]() {
      return this[_nativeRegExp].dotAll == true;
    }
    static makeNative(source, multiLine, caseSensitive, unicode, dotAll, global) {
      if (source == null) dart.argumentError(source);
      if (multiLine == null) dart.nullFailed(I[63], 82, 52, "multiLine");
      if (caseSensitive == null) dart.nullFailed(I[63], 83, 12, "caseSensitive");
      if (unicode == null) dart.nullFailed(I[63], 83, 32, "unicode");
      if (dotAll == null) dart.nullFailed(I[63], 83, 46, "dotAll");
      if (global == null) dart.nullFailed(I[63], 83, 59, "global");
      let m = dart.test(multiLine) ? "m" : "";
      let i = dart.test(caseSensitive) ? "" : "i";
      let u = dart.test(unicode) ? "u" : "";
      let s = dart.test(dotAll) ? "s" : "";
      let g = dart.test(global) ? "g" : "";
      let regexp = (function() {
        try {
          return new RegExp(source, m + i + u + s + g);
        } catch (e) {
          return e;
        }
      })();
      if (regexp instanceof RegExp) return regexp;
      let errorMessage = String(regexp);
      dart.throw(new core.FormatException.new("Illegal RegExp pattern: " + source + ", " + errorMessage));
    }
    firstMatch(string) {
      if (string == null) dart.argumentError(string);
      let m = this[_nativeRegExp].exec(string);
      if (m == null) return null;
      return new _js_helper._MatchImplementation.new(this, m);
    }
    hasMatch(string) {
      if (string == null) dart.argumentError(string);
      return this[_nativeRegExp].test(string);
    }
    stringMatch(string) {
      if (string == null) dart.nullFailed(I[63], 127, 30, "string");
      let match = this.firstMatch(string);
      if (match != null) return match.group(0);
      return null;
    }
    allMatches(string, start = 0) {
      if (string == null) dart.argumentError(string);
      if (start == null) dart.argumentError(start);
      if (start < 0 || start > string.length) {
        dart.throw(new core.RangeError.range(start, 0, string.length));
      }
      return new _js_helper._AllMatchesIterable.new(this, string, start);
    }
    [_execGlobal](string, start) {
      if (string == null) dart.nullFailed(I[63], 141, 35, "string");
      if (start == null) dart.nullFailed(I[63], 141, 47, "start");
      let regexp = T$.Object()[_as](this[_nativeGlobalVersion]);
      regexp.lastIndex = start;
      let match = regexp.exec(string);
      if (match == null) return null;
      return new _js_helper._MatchImplementation.new(this, match);
    }
    [_execAnchored](string, start) {
      let t$3674;
      if (string == null) dart.nullFailed(I[63], 151, 37, "string");
      if (start == null) dart.nullFailed(I[63], 151, 49, "start");
      let regexp = T$.Object()[_as](this[_nativeAnchoredVersion]);
      regexp.lastIndex = start;
      let match = regexp.exec(string);
      if (match == null) return null;
      if (match[$_get](dart.notNull(match[$length]) - 1) != null) return null;
      t$3674 = match;
      t$3674[$length] = dart.notNull(t$3674[$length]) - 1;
      return new _js_helper._MatchImplementation.new(this, match);
    }
    matchAsPrefix(string, start = 0) {
      if (string == null) dart.nullFailed(I[63], 165, 31, "string");
      if (start == null) dart.nullFailed(I[63], 165, 44, "start");
      if (dart.notNull(start) < 0 || dart.notNull(start) > string.length) {
        dart.throw(new core.RangeError.range(start, 0, string.length));
      }
      return this[_execAnchored](string, start);
    }
    get isMultiLine() {
      return this[_isMultiLine];
    }
    get isCaseSensitive() {
      return this[_isCaseSensitive];
    }
    get isUnicode() {
      return this[_isUnicode];
    }
    get isDotAll() {
      return this[_isDotAll];
    }
  };
  (_js_helper.JSSyntaxRegExp.new = function(source, opts) {
    if (source == null) dart.nullFailed(I[63], 49, 25, "source");
    let multiLine = opts && 'multiLine' in opts ? opts.multiLine : false;
    if (multiLine == null) dart.nullFailed(I[63], 50, 13, "multiLine");
    let caseSensitive = opts && 'caseSensitive' in opts ? opts.caseSensitive : true;
    if (caseSensitive == null) dart.nullFailed(I[63], 51, 12, "caseSensitive");
    let unicode = opts && 'unicode' in opts ? opts.unicode : false;
    if (unicode == null) dart.nullFailed(I[63], 52, 12, "unicode");
    let dotAll = opts && 'dotAll' in opts ? opts.dotAll : false;
    if (dotAll == null) dart.nullFailed(I[63], 53, 12, "dotAll");
    this[_nativeGlobalRegExp] = null;
    this[_nativeAnchoredRegExp] = null;
    this[pattern] = source;
    this[_nativeRegExp] = _js_helper.JSSyntaxRegExp.makeNative(source, multiLine, caseSensitive, unicode, dotAll, false);
    ;
  }).prototype = _js_helper.JSSyntaxRegExp.prototype;
  dart.addRtiResources(_js_helper.JSSyntaxRegExp, ["_js_helper|JSSyntaxRegExp", "core|RegExp", "core|Pattern"]);
  dart.setMethodSignature(_js_helper.JSSyntaxRegExp, () => dart.global.Object.setPrototypeOf({
    firstMatch: T$0.StringToRegExpMatchN(),
    hasMatch: T$.StringTobool(),
    stringMatch: T$.StringToStringN(),
    allMatches: T$0.StringAndintToIterableOfRegExpMatch(),
    [$allMatches]: T$0.StringAndintToIterableOfRegExpMatch(),
    [_execGlobal]: T$0.StringAndintToRegExpMatchN(),
    [_execAnchored]: T$0.StringAndintToRegExpMatchN(),
    matchAsPrefix: T$.StringAndintToMatchN(),
    [$matchAsPrefix]: T$.StringAndintToMatchN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_js_helper.JSSyntaxRegExp))));
  dart.setStaticMethodSignature(_js_helper.JSSyntaxRegExp, () => ['makeNative']);
  dart.setGetterSignature(_js_helper.JSSyntaxRegExp, () => dart.global.Object.setPrototypeOf({
    [_nativeGlobalVersion]: T$.dynamic(),
    [_nativeAnchoredVersion]: T$.dynamic(),
    [_isMultiLine]: T$.bool(),
    [_isCaseSensitive]: T$.bool(),
    [_isUnicode]: T$.bool(),
    [_isDotAll]: T$.bool(),
    isMultiLine: T$.bool(),
    isCaseSensitive: T$.bool(),
    isUnicode: T$.bool(),
    isDotAll: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_js_helper.JSSyntaxRegExp))));
  dart.setLibraryUri(_js_helper.JSSyntaxRegExp, I[57]);
  dart.setFieldSignature(_js_helper.JSSyntaxRegExp, () => dart.global.Object.setPrototypeOf({
    pattern: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_nativeRegExp]: {type: T$.dynamic(), isConst: false, isFinal: true},
    [_nativeGlobalRegExp]: {type: T$.dynamic(), isConst: false, isFinal: false},
    [_nativeAnchoredRegExp]: {type: T$.dynamic(), isConst: false, isFinal: false}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.JSSyntaxRegExp))));
  dart.defineExtensionMethods(_js_helper.JSSyntaxRegExp, ['toString', 'allMatches', 'matchAsPrefix']);
  var _match$ = dart.privateName(_js_helper, "_match");
  _js_helper._MatchImplementation = class _MatchImplementation extends core.Object {
    static ['_#new#tearOff'](pattern, _match) {
      if (pattern == null) dart.nullFailed(I[63], 187, 29, "pattern");
      if (_match == null) dart.nullFailed(I[63], 187, 43, "_match");
      return new _js_helper._MatchImplementation.new(pattern, _match);
    }
    get input() {
      return this[_match$].input;
    }
    get start() {
      return this[_match$].index;
    }
    get end() {
      return dart.notNull(this.start) + dart.nullCheck(this[_match$][$_get](0)).length;
    }
    group(index) {
      if (index == null) dart.nullFailed(I[63], 196, 21, "index");
      return this[_match$][$_get](index);
    }
    _get(index) {
      if (index == null) dart.nullFailed(I[63], 197, 27, "index");
      return this.group(index);
    }
    get groupCount() {
      return dart.notNull(this[_match$][$length]) - 1;
    }
    groups(groups) {
      if (groups == null) dart.nullFailed(I[63], 200, 34, "groups");
      let out = G.JSArrayOfStringN().of([]);
      for (let i of groups) {
        out[$add](this.group(i));
      }
      return out;
    }
    namedGroup(name) {
      if (name == null) dart.nullFailed(I[63], 208, 29, "name");
      let groups = this[_match$].groups;
      if (groups != null) {
        let result = groups[name];
        if (result != null || name in groups) {
          return result;
        }
      }
      dart.throw(new core.ArgumentError.value(name, "name", "Not a capture group name"));
    }
    get groupNames() {
      let groups = this[_match$].groups;
      if (groups != null) {
        let keys = G.JSArrayOfString().of(Object.keys(groups));
        return new (G.SubListIterableOfString()).new(keys, 0, null);
      }
      return new (G.EmptyIterableOfString()).new();
    }
  };
  (_js_helper._MatchImplementation.new = function(pattern, _match) {
    if (pattern == null) dart.nullFailed(I[63], 187, 29, "pattern");
    if (_match == null) dart.nullFailed(I[63], 187, 43, "_match");
    this.pattern = pattern;
    this[_match$] = _match;
    if (!(typeof this[_match$].input == 'string')) dart.assertFailed(null, I[63], 188, 12, "JS(\"var\", \"#.input\", _match) is String");
    if (!T$.int()[_is](this[_match$].index)) dart.assertFailed(null, I[63], 189, 12, "JS(\"var\", \"#.index\", _match) is int");
  }).prototype = _js_helper._MatchImplementation.prototype;
  dart.addRtiResources(_js_helper._MatchImplementation, ["_js_helper|_MatchImplementation", "core|RegExpMatch", "core|Match"]);
  dart.setMethodSignature(_js_helper._MatchImplementation, () => dart.global.Object.setPrototypeOf({
    group: T$0.intToStringN(),
    _get: T$0.intToStringN(),
    groups: T$0.ListOfintToListOfStringN(),
    namedGroup: T$.StringToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_js_helper._MatchImplementation))));
  dart.setGetterSignature(_js_helper._MatchImplementation, () => dart.global.Object.setPrototypeOf({
    input: T$.String(),
    start: T$.int(),
    end: T$.int(),
    groupCount: T$.int(),
    groupNames: T$0.IterableOfString()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_js_helper._MatchImplementation))));
  dart.setLibraryUri(_js_helper._MatchImplementation, I[57]);
  dart.setFieldSignature(_js_helper._MatchImplementation, () => dart.global.Object.setPrototypeOf({
    pattern: {type: T$.RegExp(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_match$]: {type: T$0.ListOfStringN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper._MatchImplementation))));
  var _re$ = dart.privateName(_js_helper, "_re");
  var _string$0 = dart.privateName(_js_helper, "_string");
  var _start$0 = dart.privateName(_js_helper, "_start");
  _js_helper._AllMatchesIterable = class _AllMatchesIterable extends G.IterableOfRegExpMatch() {
    static ['_#new#tearOff'](_re, _string, _start) {
      if (_re == null) dart.nullFailed(I[63], 234, 28, "_re");
      if (_string == null) dart.nullFailed(I[63], 234, 38, "_string");
      if (_start == null) dart.nullFailed(I[63], 234, 52, "_start");
      return new _js_helper._AllMatchesIterable.new(_re, _string, _start);
    }
    get iterator() {
      return new _js_helper._AllMatchesIterator.new(this[_re$], this[_string$0], this[_start$0]);
    }
  };
  (_js_helper._AllMatchesIterable.new = function(_re, _string, _start) {
    if (_re == null) dart.nullFailed(I[63], 234, 28, "_re");
    if (_string == null) dart.nullFailed(I[63], 234, 38, "_string");
    if (_start == null) dart.nullFailed(I[63], 234, 52, "_start");
    this[_re$] = _re;
    this[_string$0] = _string;
    this[_start$0] = _start;
    this.$ti = this.$ti || T$0._AllMatchesIterable();
    dart.global.Object.getPrototypeOf(_js_helper._AllMatchesIterable).new.call(this);
    ;
  }).prototype = _js_helper._AllMatchesIterable.prototype;
  dart.addRtiResources(_js_helper._AllMatchesIterable, ["_js_helper|_AllMatchesIterable"]);
  dart.setGetterSignature(_js_helper._AllMatchesIterable, () => dart.global.Object.setPrototypeOf({
    iterator: T$0.IteratorOfRegExpMatch(),
    [$iterator]: T$0.IteratorOfRegExpMatch()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_js_helper._AllMatchesIterable))));
  dart.setLibraryUri(_js_helper._AllMatchesIterable, I[57]);
  dart.setFieldSignature(_js_helper._AllMatchesIterable, () => dart.global.Object.setPrototypeOf({
    [_re$]: {type: T$.JSSyntaxRegExp(), isConst: false, isFinal: true, libraryUri: I[57]},
    [_string$0]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_start$0]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper._AllMatchesIterable))));
  dart.defineExtensionAccessors(_js_helper._AllMatchesIterable, ['iterator']);
  var _regExp$ = dart.privateName(_js_helper, "_regExp");
  var _nextIndex$ = dart.privateName(_js_helper, "_nextIndex");
  _js_helper._AllMatchesIterator = class _AllMatchesIterator extends core.Object {
    static ['_#new#tearOff'](_regExp, _string, _nextIndex) {
      if (_regExp == null) dart.nullFailed(I[63], 246, 28, "_regExp");
      if (_nextIndex == null) dart.nullFailed(I[63], 246, 56, "_nextIndex");
      return new _js_helper._AllMatchesIterator.new(_regExp, _string, _nextIndex);
    }
    get current() {
      return dart.nullCast(this[_current$0], T$0.RegExpMatch());
    }
    static _isLeadSurrogate(c) {
      if (c == null) dart.nullFailed(I[63], 250, 36, "c");
      return dart.notNull(c) >= 55296 && dart.notNull(c) <= 56319;
    }
    static _isTrailSurrogate(c) {
      if (c == null) dart.nullFailed(I[63], 254, 37, "c");
      return dart.notNull(c) >= 56320 && dart.notNull(c) <= 57343;
    }
    moveNext() {
      let string = this[_string$0];
      if (string == null) return false;
      if (dart.notNull(this[_nextIndex$]) <= string.length) {
        let match = this[_regExp$][_execGlobal](string, this[_nextIndex$]);
        if (match != null) {
          this[_current$0] = match;
          let nextIndex = match.end;
          if (match.start == nextIndex) {
            if (dart.test(this[_regExp$].isUnicode) && dart.notNull(this[_nextIndex$]) + 1 < string.length && dart.test(_js_helper._AllMatchesIterator._isLeadSurrogate(string[$codeUnitAt](this[_nextIndex$]))) && dart.test(_js_helper._AllMatchesIterator._isTrailSurrogate(string[$codeUnitAt](dart.notNull(this[_nextIndex$]) + 1)))) {
              nextIndex = dart.notNull(nextIndex) + 1;
            }
            nextIndex = dart.notNull(nextIndex) + 1;
          }
          this[_nextIndex$] = nextIndex;
          return true;
        }
      }
      this[_current$0] = null;
      this[_string$0] = null;
      return false;
    }
  };
  (_js_helper._AllMatchesIterator.new = function(_regExp, _string, _nextIndex) {
    if (_regExp == null) dart.nullFailed(I[63], 246, 28, "_regExp");
    if (_nextIndex == null) dart.nullFailed(I[63], 246, 56, "_nextIndex");
    this[_current$0] = null;
    this[_regExp$] = _regExp;
    this[_string$0] = _string;
    this[_nextIndex$] = _nextIndex;
    ;
  }).prototype = _js_helper._AllMatchesIterator.prototype;
  dart.addRtiResources(_js_helper._AllMatchesIterator, ["_js_helper|_AllMatchesIterator", "core|Iterator"]);
  dart.setMethodSignature(_js_helper._AllMatchesIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_js_helper._AllMatchesIterator))));
  dart.setStaticMethodSignature(_js_helper._AllMatchesIterator, () => ['_isLeadSurrogate', '_isTrailSurrogate']);
  dart.setGetterSignature(_js_helper._AllMatchesIterator, () => dart.global.Object.setPrototypeOf({current: T$0.RegExpMatch()}, dart.getGetters(dart.global.Object.getPrototypeOf(_js_helper._AllMatchesIterator))));
  dart.setLibraryUri(_js_helper._AllMatchesIterator, I[57]);
  dart.setFieldSignature(_js_helper._AllMatchesIterator, () => dart.global.Object.setPrototypeOf({
    [_regExp$]: {type: T$.JSSyntaxRegExp(), isConst: false, isFinal: true, libraryUri: I[57]},
    [_string$0]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_nextIndex$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_current$0]: {type: T$0.RegExpMatchN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper._AllMatchesIterator))));
  var start$0 = dart.privateName(_js_helper, "StringMatch.start");
  var input$ = dart.privateName(_js_helper, "StringMatch.input");
  var pattern$ = dart.privateName(_js_helper, "StringMatch.pattern");
  _js_helper.StringMatch = class StringMatch extends core.Object {
    get start() {
      return this[start$0];
    }
    set start(value) {
      super.start = value;
    }
    get input() {
      return this[input$];
    }
    set input(value) {
      super.input = value;
    }
    get pattern() {
      return this[pattern$];
    }
    set pattern(value) {
      super.pattern = value;
    }
    static ['_#new#tearOff'](start, input, pattern) {
      if (start == null) dart.nullFailed(I[64], 28, 30, "start");
      if (input == null) dart.nullFailed(I[64], 28, 49, "input");
      if (pattern == null) dart.nullFailed(I[64], 28, 68, "pattern");
      return new _js_helper.StringMatch.new(start, input, pattern);
    }
    get end() {
      return dart.notNull(this.start) + this.pattern.length;
    }
    _get(g) {
      if (g == null) dart.nullFailed(I[64], 31, 26, "g");
      return this.group(g);
    }
    get groupCount() {
      return 0;
    }
    group(group_) {
      if (group_ == null) dart.nullFailed(I[64], 34, 20, "group_");
      if (group_ !== 0) {
        dart.throw(new core.RangeError.value(group_));
      }
      return this.pattern;
    }
    groups(groups_) {
      if (groups_ == null) dart.nullFailed(I[64], 41, 33, "groups_");
      let result = G.JSArrayOfString().of([]);
      for (let g of groups_) {
        result[$add](this.group(g));
      }
      return result;
    }
  };
  (_js_helper.StringMatch.new = function(start, input, pattern) {
    if (start == null) dart.nullFailed(I[64], 28, 30, "start");
    if (input == null) dart.nullFailed(I[64], 28, 49, "input");
    if (pattern == null) dart.nullFailed(I[64], 28, 68, "pattern");
    this[start$0] = start;
    this[input$] = input;
    this[pattern$] = pattern;
    ;
  }).prototype = _js_helper.StringMatch.prototype;
  dart.addRtiResources(_js_helper.StringMatch, ["_js_helper|StringMatch", "core|Match"]);
  dart.setMethodSignature(_js_helper.StringMatch, () => dart.global.Object.setPrototypeOf({
    _get: T$.intToString(),
    group: T$.intToString(),
    groups: T$0.ListOfintToListOfString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_js_helper.StringMatch))));
  dart.setGetterSignature(_js_helper.StringMatch, () => dart.global.Object.setPrototypeOf({
    end: T$.int(),
    groupCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_js_helper.StringMatch))));
  dart.setLibraryUri(_js_helper.StringMatch, I[57]);
  dart.setFieldSignature(_js_helper.StringMatch, () => dart.global.Object.setPrototypeOf({
    start: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    input: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    pattern: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper.StringMatch))));
  var _input$ = dart.privateName(_js_helper, "_input");
  var _pattern$ = dart.privateName(_js_helper, "_pattern");
  var _index$0 = dart.privateName(_js_helper, "_index");
  _js_helper._StringAllMatchesIterable = class _StringAllMatchesIterable extends G.IterableOfMatch() {
    static ['_#new#tearOff'](_input, _pattern, _index) {
      if (_input == null) dart.nullFailed(I[64], 64, 34, "_input");
      if (_pattern == null) dart.nullFailed(I[64], 64, 47, "_pattern");
      if (_index == null) dart.nullFailed(I[64], 64, 62, "_index");
      return new _js_helper._StringAllMatchesIterable.new(_input, _pattern, _index);
    }
    get iterator() {
      return new _js_helper._StringAllMatchesIterator.new(this[_input$], this[_pattern$], this[_index$0]);
    }
    get first() {
      let index = _js_helper.stringIndexOfStringUnchecked(this[_input$], this[_pattern$], this[_index$0]);
      if (index >= 0) {
        return new _js_helper.StringMatch.new(index, this[_input$], this[_pattern$]);
      }
      dart.throw(_internal.IterableElementError.noElement());
    }
  };
  (_js_helper._StringAllMatchesIterable.new = function(_input, _pattern, _index) {
    if (_input == null) dart.nullFailed(I[64], 64, 34, "_input");
    if (_pattern == null) dart.nullFailed(I[64], 64, 47, "_pattern");
    if (_index == null) dart.nullFailed(I[64], 64, 62, "_index");
    this[_input$] = _input;
    this[_pattern$] = _pattern;
    this[_index$0] = _index;
    this.$ti = this.$ti || T$0._StringAllMatchesIterable();
    dart.global.Object.getPrototypeOf(_js_helper._StringAllMatchesIterable).new.call(this);
    ;
  }).prototype = _js_helper._StringAllMatchesIterable.prototype;
  dart.addRtiResources(_js_helper._StringAllMatchesIterable, ["_js_helper|_StringAllMatchesIterable"]);
  dart.setGetterSignature(_js_helper._StringAllMatchesIterable, () => dart.global.Object.setPrototypeOf({
    iterator: T$0.IteratorOfMatch(),
    [$iterator]: T$0.IteratorOfMatch()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_js_helper._StringAllMatchesIterable))));
  dart.setLibraryUri(_js_helper._StringAllMatchesIterable, I[57]);
  dart.setFieldSignature(_js_helper._StringAllMatchesIterable, () => dart.global.Object.setPrototypeOf({
    [_input$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_pattern$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_index$0]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper._StringAllMatchesIterable))));
  dart.defineExtensionAccessors(_js_helper._StringAllMatchesIterable, ['iterator', 'first']);
  _js_helper._StringAllMatchesIterator = class _StringAllMatchesIterator extends core.Object {
    static ['_#new#tearOff'](_input, _pattern, _index) {
      if (_input == null) dart.nullFailed(I[64], 84, 34, "_input");
      if (_pattern == null) dart.nullFailed(I[64], 84, 47, "_pattern");
      if (_index == null) dart.nullFailed(I[64], 84, 62, "_index");
      return new _js_helper._StringAllMatchesIterator.new(_input, _pattern, _index);
    }
    moveNext() {
      if (dart.notNull(this[_index$0]) + this[_pattern$].length > this[_input$].length) {
        this[_current$0] = null;
        return false;
      }
      let index = _js_helper.stringIndexOfStringUnchecked(this[_input$], this[_pattern$], this[_index$0]);
      if (index < 0) {
        this[_index$0] = this[_input$].length + 1;
        this[_current$0] = null;
        return false;
      }
      let end = index + this[_pattern$].length;
      this[_current$0] = new _js_helper.StringMatch.new(index, this[_input$], this[_pattern$]);
      if (end === this[_index$0]) end = end + 1;
      this[_index$0] = end;
      return true;
    }
    get current() {
      return dart.nullCheck(this[_current$0]);
    }
  };
  (_js_helper._StringAllMatchesIterator.new = function(_input, _pattern, _index) {
    if (_input == null) dart.nullFailed(I[64], 84, 34, "_input");
    if (_pattern == null) dart.nullFailed(I[64], 84, 47, "_pattern");
    if (_index == null) dart.nullFailed(I[64], 84, 62, "_index");
    this[_current$0] = null;
    this[_input$] = _input;
    this[_pattern$] = _pattern;
    this[_index$0] = _index;
    ;
  }).prototype = _js_helper._StringAllMatchesIterator.prototype;
  dart.addRtiResources(_js_helper._StringAllMatchesIterator, ["_js_helper|_StringAllMatchesIterator", "core|Iterator"]);
  dart.setMethodSignature(_js_helper._StringAllMatchesIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_js_helper._StringAllMatchesIterator))));
  dart.setGetterSignature(_js_helper._StringAllMatchesIterator, () => dart.global.Object.setPrototypeOf({current: T$0.Match()}, dart.getGetters(dart.global.Object.getPrototypeOf(_js_helper._StringAllMatchesIterator))));
  dart.setLibraryUri(_js_helper._StringAllMatchesIterator, I[57]);
  dart.setFieldSignature(_js_helper._StringAllMatchesIterator, () => dart.global.Object.setPrototypeOf({
    [_input$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_pattern$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_index$0]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_current$0]: {type: T$0.MatchN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_js_helper._StringAllMatchesIterator))));
  _js_helper.diagnoseIndexError = function diagnoseIndexError(indexable, index) {
    if (index == null) dart.nullFailed(I[58], 509, 41, "index");
    let length = T$.int()[_as](dart.dload(indexable, 'length'));
    if (dart.notNull(index) < 0 || dart.notNull(index) >= dart.notNull(length)) {
      return new core.IndexError.withLength(index, length, {indexable: indexable, name: "index"});
    }
    return new core.RangeError.value(index, "index");
  };
  _js_helper.diagnoseRangeError = function diagnoseRangeError(start, end, length) {
    if (length == null) dart.nullFailed(I[58], 524, 52, "length");
    if (start == null) {
      return new core.ArgumentError.value(start, "start");
    }
    if (dart.notNull(start) < 0 || dart.notNull(start) > dart.notNull(length)) {
      return new core.RangeError.range(start, 0, length, "start");
    }
    if (end != null) {
      if (dart.notNull(end) < dart.notNull(start) || dart.notNull(end) > dart.notNull(length)) {
        return new core.RangeError.range(end, start, length, "end");
      }
    }
    return new core.ArgumentError.value(end, "end");
  };
  _js_helper.stringLastIndexOfUnchecked = function stringLastIndexOfUnchecked(receiver, element, start) {
    return receiver.lastIndexOf(element, start);
  };
  _js_helper.argumentErrorValue = function argumentErrorValue(object) {
    return new core.ArgumentError.value(object);
  };
  _js_helper.throwArgumentErrorValue = function throwArgumentErrorValue(value) {
    dart.throw(_js_helper.argumentErrorValue(value));
  };
  _js_helper.checkInt = function checkInt(value) {
    if (!T$.int()[_is](value)) dart.throw(_js_helper.argumentErrorValue(value));
    return value;
  };
  _js_helper.throwRuntimeError = function throwRuntimeError(message) {
    dart.throw(new _js_helper.RuntimeError.new(message));
  };
  _js_helper.throwConcurrentModificationError = function throwConcurrentModificationError(collection) {
    dart.throw(new core.ConcurrentModificationError.new(collection));
  };
  _js_helper.fillLiteralMap = function fillLiteralMap(keyValuePairs, result) {
    let t$3674, t$3674$;
    if (result == null) dart.nullFailed(I[58], 596, 35, "result");
    let index = 0;
    let length = _js_helper.getLength(keyValuePairs);
    while (index < dart.notNull(length)) {
      let key = _js_helper.getIndex(keyValuePairs, (t$3674 = index, index = t$3674 + 1, t$3674));
      let value = _js_helper.getIndex(keyValuePairs, (t$3674$ = index, index = t$3674$ + 1, t$3674$));
      result[$_set](key, value);
    }
    return result;
  };
  _js_helper.jsHasOwnProperty = function jsHasOwnProperty(jsObject, property) {
    if (property == null) dart.nullFailed(I[58], 609, 40, "property");
    return jsObject.hasOwnProperty(property);
  };
  _js_helper.jsPropertyAccess = function jsPropertyAccess(jsObject, property) {
    if (property == null) dart.nullFailed(I[58], 613, 35, "property");
    return jsObject[property];
  };
  _js_helper.random64 = function random64() {
    let int32a = Math.random() * 0x100000000 >>> 0;
    let int32b = Math.random() * 0x100000000 >>> 0;
    return int32a + int32b * 4294967296;
  };
  _js_helper.registerGlobalObject = function registerGlobalObject(object) {
    try {
      if (dart.test(dart.polyfill(object))) {
        dart.applyAllExtensions(object);
      }
    } catch (t$36$35e) {
      let e = dart.getThrown(t$36$35e);
      if (T$.Object()[_is](e)) {
      } else
        throw t$36$35e;
    }
  };
  _js_helper.applyExtension = function applyExtension$(name, nativeObject) {
    dart.applyExtension(name, nativeObject);
  };
  _js_helper.applyTestExtensions = function applyTestExtensions(names) {
    if (names == null) dart.nullFailed(I[58], 788, 39, "names");
    names[$forEach](C[68] || CT.C68);
  };
  _js_helper.assertInterop = function assertInterop$(value) {
    if (T$.Function()[_is](value)) dart.assertInterop(value);
  };
  _js_helper.assertInteropArgs = function assertInteropArgs(args) {
    if (args == null) dart.nullFailed(I[58], 829, 38, "args");
    return args[$forEach](C[69] || CT.C69);
  };
  _js_helper.wrapZoneUnaryCallback = function wrapZoneUnaryCallback(T, callback) {
    if (dart.equals(async.Zone.current, async.Zone.root)) return callback;
    if (callback == null) return null;
    return async.Zone.current.bindUnaryCallbackGuarded(T, callback);
  };
  _js_helper.createRecordTypePredicate = function createRecordTypePredicate(partialShapeTag, fieldRtis) {
    if (partialShapeTag == null) dart.nullFailed(I[58], 849, 42, "partialShapeTag");
    if (fieldRtis == null) dart.nullFailed(I[58], 849, 67, "fieldRtis");
    let shapeKey = fieldRtis.length + ";" + partialShapeTag;
    return dart.fn(obj => obj instanceof dart.RecordImpl && obj[dart.shapeProperty][$_equals](dart.shapes.get(shapeKey)) && dart.test(dart_rti.pairwiseIsTest(fieldRtis, obj[dart.valuesProperty])), T$.dynamicTobool());
  };
  _js_helper.getRtiForRecord = function getRtiForRecord(record) {
    let recordObj = record;
    let recipeBuffer = new core.StringBuffer.new("+");
    let shape = recordObj[dart.shapeProperty];
    let values = recordObj[dart.valuesProperty];
    let named = shape.named;
    if (named != null) recipeBuffer.writeAll(named, ",");
    recipeBuffer.write("(");
    let elementCount = values[$length];
    recipeBuffer.writeAll((() => {
      let t$3675 = [];
      for (let i = 1; i <= elementCount; i = i + 1)
        t$3675.push(i);
      return t$3675;
    })(), ",");
    recipeBuffer.write(")");
    return dart_rti.evaluateRtiForRecord(dart.toString(recipeBuffer), values);
  };
  _js_helper.createObjectLiteral = function createObjectLiteral(T) {
    return {};
  };
  _js_helper.getRuntimeType = function getRuntimeType(object) {
    return dart.getReifiedType(object);
  };
  _js_helper.getIndex = function getIndex(array, index) {
    if (index == null) dart.nullFailed(I[65], 13, 21, "index");
    if (!dart.test(_js_helper.isJsArray(array))) dart.assertFailed(null, I[65], 14, 10, "isJsArray(array)");
    return array[index];
  };
  _js_helper.getLength = function getLength(array) {
    if (!dart.test(_js_helper.isJsArray(array))) dart.assertFailed(null, I[65], 20, 10, "isJsArray(array)");
    return array.length;
  };
  _js_helper.isJsArray = function isJsArray(value) {
    return T$.JSArray()[_is](value);
  };
  _js_helper.putLinkedMapKey = function putLinkedMapKey(key, keyMap) {
    let hash = dart.hashCode(key) & 0x3fffffff;
    let buckets = keyMap.get(hash);
    if (buckets == null) {
      keyMap.set(hash, [key]);
      return key;
    }
    for (let i = 0, n = buckets.length; i < n; i = i + 1) {
      let k = buckets[i];
      if (dart.equals(k, key)) return k;
    }
    buckets.push(key);
    return key;
  };
  _js_helper.convertDartClosureToJS = function convertDartClosureToJS(F, closure, arity) {
    if (arity == null) dart.nullFailed(I[66], 9, 44, "arity");
    return closure;
  };
  _js_helper.setNativeSubclassDispatchRecord = function setNativeSubclassDispatchRecord(proto, interceptor) {
  };
  _js_helper.findDispatchTagForInterceptorClass = function findDispatchTagForInterceptorClass(interceptorClassConstructor) {
  };
  _js_helper.makeLeafDispatchRecord = function makeLeafDispatchRecord(interceptor) {
  };
  _js_helper.regExpGetNative = function regExpGetNative(regexp) {
    if (regexp == null) dart.nullFailed(I[63], 8, 32, "regexp");
    return regexp[_nativeRegExp];
  };
  _js_helper.regExpGetGlobalNative = function regExpGetGlobalNative(regexp) {
    if (regexp == null) dart.nullFailed(I[63], 17, 38, "regexp");
    let nativeRegexp = regexp[_nativeGlobalVersion];
    nativeRegexp.lastIndex = 0;
    return nativeRegexp;
  };
  _js_helper.regExpCaptureCount = function regExpCaptureCount(regexp) {
    if (regexp == null) dart.nullFailed(I[63], 31, 39, "regexp");
    let nativeAnchoredRegExp = regexp[_nativeAnchoredVersion];
    let match = nativeAnchoredRegExp.exec('');
    return match[$length] - 2;
  };
  _js_helper.firstMatchAfter = function firstMatchAfter(regExp, string, start) {
    if (regExp == null) dart.nullFailed(I[63], 289, 45, "regExp");
    if (string == null) dart.nullFailed(I[63], 289, 60, "string");
    if (start == null) dart.nullFailed(I[63], 289, 72, "start");
    return regExp[_execGlobal](string, start);
  };
  _js_helper.stringIndexOfStringUnchecked = function stringIndexOfStringUnchecked(receiver, other, startIndex) {
    return receiver.indexOf(other, startIndex);
  };
  _js_helper.substring1Unchecked = function substring1Unchecked(receiver, startIndex) {
    return receiver.substring(startIndex);
  };
  _js_helper.substring2Unchecked = function substring2Unchecked(receiver, startIndex, endIndex) {
    return receiver.substring(startIndex, endIndex);
  };
  _js_helper.stringContainsStringUnchecked = function stringContainsStringUnchecked(receiver, other, startIndex) {
    return _js_helper.stringIndexOfStringUnchecked(receiver, other, startIndex) >= 0;
  };
  _js_helper.allMatchesInStringUnchecked = function allMatchesInStringUnchecked(pattern, string, startIndex) {
    if (pattern == null) dart.nullFailed(I[64], 55, 12, "pattern");
    if (string == null) dart.nullFailed(I[64], 55, 28, "string");
    if (startIndex == null) dart.nullFailed(I[64], 55, 40, "startIndex");
    return new _js_helper._StringAllMatchesIterable.new(string, pattern, startIndex);
  };
  _js_helper.stringContainsUnchecked = function stringContainsUnchecked(receiver, other, startIndex) {
    if (startIndex == null) dart.nullFailed(I[64], 110, 51, "startIndex");
    if (typeof other == 'string') {
      return _js_helper.stringContainsStringUnchecked(receiver, other, startIndex);
    } else if (T$.JSSyntaxRegExp()[_is](other)) {
      return other.hasMatch(receiver[$substring](startIndex));
    } else {
      let substr = receiver[$substring](startIndex);
      return T$.bool()[_as](dart.dload(dart.dsend(other, 'allMatches', [substr]), 'isNotEmpty'));
    }
  };
  _js_helper.stringReplaceJS = function stringReplaceJS(receiver, replacer, replacement) {
    if (receiver == null) dart.nullFailed(I[64], 122, 31, "receiver");
    if (replacement == null) dart.nullFailed(I[64], 122, 58, "replacement");
    replacement = replacement.replace(/\$/g, "$$$$");
    return receiver.replace(replacer, replacement);
  };
  _js_helper.stringReplaceFirstRE = function stringReplaceFirstRE(receiver, regexp, replacement, startIndex) {
    if (regexp == null) dart.nullFailed(I[64], 131, 70, "regexp");
    if (replacement == null) dart.nullFailed(I[64], 132, 12, "replacement");
    if (startIndex == null) dart.nullFailed(I[64], 132, 29, "startIndex");
    let match = regexp[_execGlobal](receiver, startIndex);
    if (match == null) return receiver;
    let start = match.start;
    let end = match.end;
    return _js_helper.stringReplaceRangeUnchecked(receiver, start, end, replacement);
  };
  _js_helper.quoteStringForRegExp = function quoteStringForRegExp(string) {
    return string.replace(/[[\]{}()*+?.\\^$|]/g, "\\$&");
  };
  _js_helper.stringReplaceAllUnchecked = function stringReplaceAllUnchecked(receiver, pattern, replacement) {
    if (pattern == null) dart.argumentError(pattern);
    if (replacement == null) dart.argumentError(replacement);
    if (typeof pattern == 'string') {
      if (pattern === "") {
        if (receiver === "") {
          return replacement;
        } else {
          let result = new core.StringBuffer.new();
          let length = receiver.length;
          result.write(replacement);
          for (let i = 0; i < length; i = i + 1) {
            result.write(receiver[$_get](i));
            result.write(replacement);
          }
          return dart.toString(result);
        }
      } else {
        return receiver.split(pattern).join(replacement);
      }
    } else if (T$.JSSyntaxRegExp()[_is](pattern)) {
      let re = _js_helper.regExpGetGlobalNative(pattern);
      return _js_helper.stringReplaceJS(receiver, re, replacement);
    } else {
      let startIndex = 0;
      let result = new core.StringBuffer.new();
      for (let match of pattern[$allMatches](receiver)) {
        result.write(_js_helper.substring2Unchecked(receiver, startIndex, match.start));
        result.write(replacement);
        startIndex = match.end;
      }
      result.write(_js_helper.substring1Unchecked(receiver, startIndex));
      return dart.toString(result);
    }
  };
  _js_helper._matchString = function _matchString(match) {
    if (match == null) dart.nullFailed(I[64], 184, 27, "match");
    return dart.nullCheck(match._get(0));
  };
  _js_helper._stringIdentity = function _stringIdentity(string) {
    if (string == null) dart.nullFailed(I[64], 185, 31, "string");
    return string;
  };
  _js_helper.stringReplaceAllFuncUnchecked = function stringReplaceAllFuncUnchecked(receiver, pattern, onMatch, onNonMatch) {
    if (receiver == null) dart.nullFailed(I[64], 189, 12, "receiver");
    if (pattern == null) dart.argumentError(pattern);
    if (onMatch == null) onMatch = C[70] || CT.C70;
    if (onNonMatch == null) onNonMatch = C[71] || CT.C71;
    if (typeof pattern == 'string') {
      return _js_helper.stringReplaceAllStringFuncUnchecked(receiver, pattern, onMatch, onNonMatch);
    }
    let buffer = new core.StringBuffer.new();
    let startIndex = 0;
    for (let match of pattern[$allMatches](receiver)) {
      buffer.write(onNonMatch(receiver[$substring](startIndex, match.start)));
      buffer.write(onMatch(match));
      startIndex = match.end;
    }
    buffer.write(onNonMatch(receiver[$substring](startIndex)));
    return dart.toString(buffer);
  };
  _js_helper.stringReplaceAllEmptyFuncUnchecked = function stringReplaceAllEmptyFuncUnchecked(receiver, onMatch, onNonMatch) {
    if (receiver == null) dart.nullFailed(I[64], 211, 50, "receiver");
    if (onMatch == null) dart.nullFailed(I[64], 212, 12, "onMatch");
    if (onNonMatch == null) dart.nullFailed(I[64], 212, 41, "onNonMatch");
    let buffer = new core.StringBuffer.new();
    let length = receiver.length;
    let i = 0;
    buffer.write(onNonMatch(""));
    while (i < length) {
      buffer.write(onMatch(new _js_helper.StringMatch.new(i, receiver, "")));
      let code = receiver[$codeUnitAt](i);
      if ((code & ~1023 >>> 0) === 55296 && length > i + 1) {
        code = receiver[$codeUnitAt](i + 1);
        if ((code & ~1023 >>> 0) === 56320) {
          buffer.write(onNonMatch(receiver[$substring](i, i + 2)));
          i = i + 2;
          continue;
        }
      }
      buffer.write(onNonMatch(receiver[$_get](i)));
      i = i + 1;
    }
    buffer.write(onMatch(new _js_helper.StringMatch.new(i, receiver, "")));
    buffer.write(onNonMatch(""));
    return dart.toString(buffer);
  };
  _js_helper.stringReplaceAllStringFuncUnchecked = function stringReplaceAllStringFuncUnchecked(receiver, pattern, onMatch, onNonMatch) {
    if (receiver == null) dart.nullFailed(I[64], 241, 51, "receiver");
    if (pattern == null) dart.nullFailed(I[64], 241, 68, "pattern");
    if (onMatch == null) dart.nullFailed(I[64], 242, 12, "onMatch");
    if (onNonMatch == null) dart.nullFailed(I[64], 242, 41, "onNonMatch");
    let patternLength = pattern.length;
    if (patternLength === 0) {
      return _js_helper.stringReplaceAllEmptyFuncUnchecked(receiver, onMatch, onNonMatch);
    }
    let length = receiver.length;
    let buffer = new core.StringBuffer.new();
    let startIndex = 0;
    while (startIndex < length) {
      let position = _js_helper.stringIndexOfStringUnchecked(receiver, pattern, startIndex);
      if (position === -1) {
        break;
      }
      buffer.write(onNonMatch(receiver[$substring](startIndex, position)));
      buffer.write(onMatch(new _js_helper.StringMatch.new(position, receiver, pattern)));
      startIndex = position + patternLength;
    }
    buffer.write(onNonMatch(receiver[$substring](startIndex)));
    return dart.toString(buffer);
  };
  _js_helper.stringReplaceFirstUnchecked = function stringReplaceFirstUnchecked(receiver, pattern, replacement, startIndex) {
    if (pattern == null) dart.argumentError(pattern);
    if (replacement == null) dart.nullFailed(I[64], 265, 40, "replacement");
    if (startIndex == null) dart.nullFailed(I[64], 265, 57, "startIndex");
    if (typeof pattern == 'string') {
      let index = _js_helper.stringIndexOfStringUnchecked(receiver, pattern, startIndex);
      if (index < 0) return receiver;
      let end = index + pattern.length;
      return _js_helper.stringReplaceRangeUnchecked(receiver, index, end, replacement);
    }
    if (T$.JSSyntaxRegExp()[_is](pattern)) {
      return startIndex === 0 ? _js_helper.stringReplaceJS(receiver, _js_helper.regExpGetNative(pattern), replacement) : _js_helper.stringReplaceFirstRE(receiver, pattern, replacement, startIndex);
    }
    let matches = pattern[$allMatches](receiver, startIndex)[$iterator];
    if (!dart.test(matches.moveNext())) return receiver;
    let match = matches.current;
    return receiver[$replaceRange](match.start, match.end, replacement);
  };
  _js_helper.stringReplaceFirstMappedUnchecked = function stringReplaceFirstMappedUnchecked(receiver, pattern, replace, startIndex) {
    if (receiver == null) dart.nullFailed(I[64], 284, 49, "receiver");
    if (pattern == null) dart.nullFailed(I[64], 284, 67, "pattern");
    if (replace == null) dart.nullFailed(I[64], 285, 12, "replace");
    if (startIndex == null) dart.nullFailed(I[64], 285, 40, "startIndex");
    let matches = pattern[$allMatches](receiver, startIndex)[$iterator];
    if (!dart.test(matches.moveNext())) return receiver;
    let match = matches.current;
    let replacement = dart.str(replace(match));
    return receiver[$replaceRange](match.start, match.end, replacement);
  };
  _js_helper.stringJoinUnchecked = function stringJoinUnchecked(array, separator) {
    return array.join(separator);
  };
  _js_helper.stringReplaceRangeUnchecked = function stringReplaceRangeUnchecked(receiver, start, end, replacement) {
    if (receiver == null) dart.nullFailed(I[64], 300, 12, "receiver");
    if (start == null) dart.nullFailed(I[64], 300, 26, "start");
    if (end == null) dart.nullFailed(I[64], 300, 37, "end");
    if (replacement == null) dart.nullFailed(I[64], 300, 49, "replacement");
    let prefix = receiver.substring(0, start);
    let suffix = receiver.substring(end);
    return prefix + dart.str(replacement) + suffix;
  };
  dart.defineLazy(_js_helper, {
    /*_js_helper.notNull*/get notNull() {
      return C[72] || CT.C72;
    },
    /*_js_helper.undefined*/get undefined() {
      return C[73] || CT.C73;
    },
    /*_js_helper.nullCheck*/get nullCheck() {
      return C[74] || CT.C74;
    }
  }, false);
  _js_names.unmangleGlobalNameIfPreservedAnyways = function unmangleGlobalNameIfPreservedAnyways(name) {
    if (name == null) dart.nullFailed(I[67], 11, 53, "name");
    return null;
  };
  _js_names.getSpecializedTestTag = function getSpecializedTestTag(name) {
    if (name == null) dart.nullFailed(I[67], 15, 37, "name");
    return dart.typeTagSymbol(name);
  };
  _js_primitives.printString = function printString(string) {
    if (string == null) dart.nullFailed(I[68], 18, 25, "string");
    if (typeof dartPrint == "function") {
      dartPrint(string);
      return;
    }
    if (typeof console == "object" && typeof console.log != "undefined") {
      console.log(string);
      return;
    }
    if (typeof window == "object") {
      return;
    }
    if (typeof print == "function") {
      print(string);
      return;
    }
    throw "Unable to print message: " + String(string);
  };
  var browserName$ = dart.privateName(_metadata, "SupportedBrowser.browserName");
  var minimumVersion$ = dart.privateName(_metadata, "SupportedBrowser.minimumVersion");
  _metadata.SupportedBrowser = class SupportedBrowser extends core.Object {
    get browserName() {
      return this[browserName$];
    }
    set browserName(value) {
      super.browserName = value;
    }
    get minimumVersion() {
      return this[minimumVersion$];
    }
    set minimumVersion(value) {
      super.minimumVersion = value;
    }
    static ['_#new#tearOff'](browserName, minimumVersion = null) {
      if (browserName == null) dart.nullFailed(I[69], 28, 31, "browserName");
      return new _metadata.SupportedBrowser.new(browserName, minimumVersion);
    }
  };
  (_metadata.SupportedBrowser.new = function(browserName, minimumVersion = null) {
    if (browserName == null) dart.nullFailed(I[69], 28, 31, "browserName");
    this[browserName$] = browserName;
    this[minimumVersion$] = minimumVersion;
    ;
  }).prototype = _metadata.SupportedBrowser.prototype;
  dart.addRtiResources(_metadata.SupportedBrowser, ["_metadata|SupportedBrowser"]);
  dart.setLibraryUri(_metadata.SupportedBrowser, I[70]);
  dart.setFieldSignature(_metadata.SupportedBrowser, () => dart.global.Object.setPrototypeOf({
    browserName: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    minimumVersion: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_metadata.SupportedBrowser))));
  dart.setStaticFieldSignature(_metadata.SupportedBrowser, () => ['CHROME', 'FIREFOX', 'IE', 'OPERA', 'SAFARI']);
  dart.defineLazy(_metadata.SupportedBrowser, {
    /*_metadata.SupportedBrowser.CHROME*/get CHROME() {
      return "Chrome";
    },
    /*_metadata.SupportedBrowser.FIREFOX*/get FIREFOX() {
      return "Firefox";
    },
    /*_metadata.SupportedBrowser.IE*/get IE() {
      return "Internet Explorer";
    },
    /*_metadata.SupportedBrowser.OPERA*/get OPERA() {
      return "Opera";
    },
    /*_metadata.SupportedBrowser.SAFARI*/get SAFARI() {
      return "Safari";
    }
  }, false);
  _metadata.Experimental = class Experimental extends core.Object {
    static ['_#new#tearOff']() {
      return new _metadata.Experimental.new();
    }
  };
  (_metadata.Experimental.new = function() {
    ;
  }).prototype = _metadata.Experimental.prototype;
  dart.addRtiResources(_metadata.Experimental, ["_metadata|Experimental"]);
  dart.setLibraryUri(_metadata.Experimental, I[70]);
  var name$10 = dart.privateName(_metadata, "DomName.name");
  _metadata.DomName = class DomName extends core.Object {
    get name() {
      return this[name$10];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[69], 54, 22, "name");
      return new _metadata.DomName.new(name);
    }
  };
  (_metadata.DomName.new = function(name) {
    if (name == null) dart.nullFailed(I[69], 54, 22, "name");
    this[name$10] = name;
    ;
  }).prototype = _metadata.DomName.prototype;
  dart.addRtiResources(_metadata.DomName, ["_metadata|DomName"]);
  dart.setLibraryUri(_metadata.DomName, I[70]);
  dart.setFieldSignature(_metadata.DomName, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_metadata.DomName))));
  _metadata.DocsEditable = class DocsEditable extends core.Object {
    static ['_#new#tearOff']() {
      return new _metadata.DocsEditable.new();
    }
  };
  (_metadata.DocsEditable.new = function() {
    ;
  }).prototype = _metadata.DocsEditable.prototype;
  dart.addRtiResources(_metadata.DocsEditable, ["_metadata|DocsEditable"]);
  dart.setLibraryUri(_metadata.DocsEditable, I[70]);
  _metadata.Unstable = class Unstable extends core.Object {
    static ['_#new#tearOff']() {
      return new _metadata.Unstable.new();
    }
  };
  (_metadata.Unstable.new = function() {
    ;
  }).prototype = _metadata.Unstable.prototype;
  dart.addRtiResources(_metadata.Unstable, ["_metadata|Unstable"]);
  dart.setLibraryUri(_metadata.Unstable, I[70]);
  _native_typed_data.NativeByteBuffer = class NativeByteBuffer extends _interceptors.JavaScriptObject {
    get [$lengthInBytes]() {
      return this.byteLength;
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.ByteBuffer());
    }
    [$asUint8List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 33, 30, "offsetInBytes");
      return _native_typed_data.NativeUint8List.view(this, offsetInBytes, length);
    }
    [$asInt8List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 37, 28, "offsetInBytes");
      return _native_typed_data.NativeInt8List.view(this, offsetInBytes, length);
    }
    [$asUint8ClampedList](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 41, 44, "offsetInBytes");
      return _native_typed_data.NativeUint8ClampedList.view(this, offsetInBytes, length);
    }
    [$asUint16List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 45, 32, "offsetInBytes");
      return _native_typed_data.NativeUint16List.view(this, offsetInBytes, length);
    }
    [$asInt16List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 49, 30, "offsetInBytes");
      return _native_typed_data.NativeInt16List.view(this, offsetInBytes, length);
    }
    [$asUint32List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 53, 32, "offsetInBytes");
      return _native_typed_data.NativeUint32List.view(this, offsetInBytes, length);
    }
    [$asInt32List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 57, 30, "offsetInBytes");
      return _native_typed_data.NativeInt32List.view(this, offsetInBytes, length);
    }
    [$asUint64List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 61, 32, "offsetInBytes");
      dart.throw(new core.UnsupportedError.new("Uint64List not supported by dart2js."));
    }
    [$asInt64List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 65, 30, "offsetInBytes");
      dart.throw(new core.UnsupportedError.new("Int64List not supported by dart2js."));
    }
    [$asInt32x4List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 69, 34, "offsetInBytes");
      length == null ? length = ((dart.notNull(this[$lengthInBytes]) - dart.notNull(offsetInBytes)) / 16)[$truncate]() : null;
      let storage = this[$asInt32List](offsetInBytes, dart.notNull(length) * 4);
      return new _native_typed_data.NativeInt32x4List._externalStorage(storage);
    }
    [$asFloat32List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 75, 34, "offsetInBytes");
      return _native_typed_data.NativeFloat32List.view(this, offsetInBytes, length);
    }
    [$asFloat64List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 79, 34, "offsetInBytes");
      return _native_typed_data.NativeFloat64List.view(this, offsetInBytes, length);
    }
    [$asFloat32x4List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 83, 38, "offsetInBytes");
      length == null ? length = ((dart.notNull(this[$lengthInBytes]) - dart.notNull(offsetInBytes)) / 16)[$truncate]() : null;
      let storage = this[$asFloat32List](offsetInBytes, dart.notNull(length) * 4);
      return new _native_typed_data.NativeFloat32x4List._externalStorage(storage);
    }
    [$asFloat64x2List](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 89, 38, "offsetInBytes");
      length == null ? length = ((dart.notNull(this[$lengthInBytes]) - dart.notNull(offsetInBytes)) / 16)[$truncate]() : null;
      let storage = this[$asFloat64List](offsetInBytes, dart.notNull(length) * 2);
      return new _native_typed_data.NativeFloat64x2List._externalStorage(storage);
    }
    [$asByteData](offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 95, 28, "offsetInBytes");
      return _native_typed_data.NativeByteData.view(this, offsetInBytes, length);
    }
    static ['_#new#tearOff']() {
      return new _native_typed_data.NativeByteBuffer.new();
    }
  };
  (_native_typed_data.NativeByteBuffer.new = function() {
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeByteBuffer).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeByteBuffer.prototype;
  dart.addRtiResources(_native_typed_data.NativeByteBuffer, ["_native_typed_data|NativeByteBuffer", "typed_data|ByteBuffer"]);
  dart.setMethodSignature(_native_typed_data.NativeByteBuffer, () => dart.global.Object.setPrototypeOf({
    [$asUint8List]: T$0.intAndintNToUint8List(),
    [$asInt8List]: T$0.intAndintNToInt8List(),
    [$asUint8ClampedList]: T$0.intAndintNToUint8ClampedList(),
    [$asUint16List]: T$0.intAndintNToUint16List(),
    [$asInt16List]: T$0.intAndintNToInt16List(),
    [$asUint32List]: T$0.intAndintNToUint32List(),
    [$asInt32List]: T$0.intAndintNToInt32List(),
    [$asUint64List]: T$0.intAndintNToUint64List(),
    [$asInt64List]: T$0.intAndintNToInt64List(),
    [$asInt32x4List]: T$0.intAndintNToInt32x4List(),
    [$asFloat32List]: T$0.intAndintNToFloat32List(),
    [$asFloat64List]: T$0.intAndintNToFloat64List(),
    [$asFloat32x4List]: T$0.intAndintNToFloat32x4List(),
    [$asFloat64x2List]: T$0.intAndintNToFloat64x2List(),
    [$asByteData]: T$0.intAndintNToByteData()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeByteBuffer))));
  dart.setGetterSignature(_native_typed_data.NativeByteBuffer, () => dart.global.Object.setPrototypeOf({[$lengthInBytes]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeByteBuffer))));
  dart.setLibraryUri(_native_typed_data.NativeByteBuffer, I[72]);
  dart.registerExtension("ArrayBuffer", _native_typed_data.NativeByteBuffer);
  var _storage$ = dart.privateName(_native_typed_data, "_storage");
  const Object_ListBase$36 = class Object_ListBase extends core.Object {};
  (Object_ListBase$36.new = function() {
    G.ListBaseOfFloat32x4().new.call(this);
  }).prototype = Object_ListBase$36.prototype;
  dart.applyMixin(Object_ListBase$36, G.ListBaseOfFloat32x4());
  const Object_FixedLengthListMixin$36 = class Object_FixedLengthListMixin extends Object_ListBase$36 {};
  (Object_FixedLengthListMixin$36.new = function() {
    dart.global.Object.getPrototypeOf(Object_FixedLengthListMixin$36).new.call(this);
  }).prototype = Object_FixedLengthListMixin$36.prototype;
  dart.applyMixin(Object_FixedLengthListMixin$36, G.FixedLengthListMixinOfFloat32x4());
  _native_typed_data.NativeFloat32x4List = class NativeFloat32x4List extends Object_FixedLengthListMixin$36 {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 110, 27, "length");
      return new _native_typed_data.NativeFloat32x4List.new(length);
    }
    static ['_#_externalStorage#tearOff'](_storage) {
      if (_storage == null) dart.nullFailed(I[71], 112, 45, "_storage");
      return new _native_typed_data.NativeFloat32x4List._externalStorage(_storage);
    }
    static ['_#_slowFromList#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 114, 53, "list");
      return new _native_typed_data.NativeFloat32x4List._slowFromList(list);
    }
    get runtimeType() {
      return dart_rti.createRuntimeType(T$0.Float32x4List());
    }
    static fromList(list) {
      if (list == null) dart.nullFailed(I[71], 129, 56, "list");
      if (T$0.NativeFloat32x4List()[_is](list)) {
        return new _native_typed_data.NativeFloat32x4List._externalStorage(_native_typed_data.NativeFloat32List.fromList(list[_storage$]));
      } else {
        return new _native_typed_data.NativeFloat32x4List._slowFromList(list);
      }
    }
    static ['_#fromList#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 129, 56, "list");
      return _native_typed_data.NativeFloat32x4List.fromList(list);
    }
    get buffer() {
      return this[_storage$][$buffer];
    }
    get lengthInBytes() {
      return this[_storage$][$lengthInBytes];
    }
    get offsetInBytes() {
      return this[_storage$][$offsetInBytes];
    }
    get elementSizeInBytes() {
      return 16;
    }
    get length() {
      return (dart.notNull(this[_storage$][$length]) / 4)[$truncate]();
    }
    set length(value) {
      super.length = value;
    }
    _get(index) {
      if (index == null) dart.nullFailed(I[71], 148, 29, "index");
      _native_typed_data._checkValidIndex(index, this, this.length);
      let _x = this[_storage$][$_get](dart.notNull(index) * 4 + 0);
      let _y = this[_storage$][$_get](dart.notNull(index) * 4 + 1);
      let _z = this[_storage$][$_get](dart.notNull(index) * 4 + 2);
      let _w = this[_storage$][$_get](dart.notNull(index) * 4 + 3);
      return new _native_typed_data.NativeFloat32x4._truncated(_x, _y, _z, _w);
    }
    _set(index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[71], 157, 25, "index");
      T$0.Float32x4()[_as](value);
      if (value == null) dart.nullFailed(I[71], 157, 42, "value");
      _native_typed_data._checkValidIndex(index, this, this.length);
      this[_storage$][$_set](dart.notNull(index) * 4 + 0, value.x);
      this[_storage$][$_set](dart.notNull(index) * 4 + 1, value.y);
      this[_storage$][$_set](dart.notNull(index) * 4 + 2, value.z);
      this[_storage$][$_set](dart.notNull(index) * 4 + 3, value.w);
      return value$;
    }
    asUnmodifiableView() {
      return new _native_typed_data._UnmodifiableFloat32x4ListView.new(this);
    }
    sublist(start, end = null) {
      if (start == null) dart.nullFailed(I[71], 167, 29, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this.length);
      return new _native_typed_data.NativeFloat32x4List._externalStorage(this[_storage$][$sublist](dart.notNull(start) * 4, dart.notNull(stop) * 4));
    }
  };
  (_native_typed_data.NativeFloat32x4List.new = function(length) {
    if (length == null) dart.nullFailed(I[71], 110, 27, "length");
    this[_storage$] = _native_typed_data.NativeFloat32List.new(dart.notNull(length) * 4);
    this.$ti = this.$ti || T$0.NativeFloat32x4List();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32x4List).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeFloat32x4List.prototype;
  (_native_typed_data.NativeFloat32x4List._externalStorage = function(_storage) {
    if (_storage == null) dart.nullFailed(I[71], 112, 45, "_storage");
    this[_storage$] = _storage;
    this.$ti = this.$ti || T$0.NativeFloat32x4List();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32x4List).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeFloat32x4List.prototype;
  (_native_typed_data.NativeFloat32x4List._slowFromList = function(list) {
    if (list == null) dart.nullFailed(I[71], 114, 53, "list");
    this[_storage$] = _native_typed_data.NativeFloat32List.new(dart.notNull(list[$length]) * 4);
    this.$ti = this.$ti || T$0.NativeFloat32x4List();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32x4List).new.call(this);
    for (let i = 0; i < dart.notNull(list[$length]); i = i + 1) {
      let e = list[$_get](i);
      this[_storage$][$_set](i * 4 + 0, e.x);
      this[_storage$][$_set](i * 4 + 1, e.y);
      this[_storage$][$_set](i * 4 + 2, e.z);
      this[_storage$][$_set](i * 4 + 3, e.w);
    }
  }).prototype = _native_typed_data.NativeFloat32x4List.prototype;
  dart.addRtiResources(_native_typed_data.NativeFloat32x4List, ["_native_typed_data|NativeFloat32x4List", "typed_data|Float32x4List", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeFloat32x4List, () => dart.global.Object.setPrototypeOf({
    _get: T$0.intToFloat32x4(),
    [$_get]: T$0.intToFloat32x4(),
    _set: T$.intAndObjectNTovoid(),
    [$_set]: T$.intAndObjectNTovoid(),
    asUnmodifiableView: T$0.VoidToFloat32x4List(),
    sublist: T$0.intAndintNToFloat32x4List$1(),
    [$sublist]: T$0.intAndintNToFloat32x4List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32x4List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeFloat32x4List, () => ['fromList']);
  dart.setGetterSignature(_native_typed_data.NativeFloat32x4List, () => dart.global.Object.setPrototypeOf({
    buffer: T$0.ByteBuffer(),
    [$buffer]: T$0.ByteBuffer(),
    lengthInBytes: T$.int(),
    [$lengthInBytes]: T$.int(),
    offsetInBytes: T$.int(),
    [$offsetInBytes]: T$.int(),
    elementSizeInBytes: T$.int(),
    [$elementSizeInBytes]: T$.int(),
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32x4List))));
  dart.setLibraryUri(_native_typed_data.NativeFloat32x4List, I[72]);
  dart.setFieldSignature(_native_typed_data.NativeFloat32x4List, () => dart.global.Object.setPrototypeOf({[_storage$]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32x4List))));
  dart.defineExtensionMethods(_native_typed_data.NativeFloat32x4List, ['_get', '_set', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data.NativeFloat32x4List, [
    'runtimeType',
    'buffer',
    'lengthInBytes',
    'offsetInBytes',
    'elementSizeInBytes',
    'length'
  ]);
  const Object_ListBase$36$ = class Object_ListBase extends core.Object {};
  (Object_ListBase$36$.new = function() {
    G.ListBaseOfInt32x4().new.call(this);
  }).prototype = Object_ListBase$36$.prototype;
  dart.applyMixin(Object_ListBase$36$, G.ListBaseOfInt32x4());
  const Object_FixedLengthListMixin$36$ = class Object_FixedLengthListMixin extends Object_ListBase$36$ {};
  (Object_FixedLengthListMixin$36$.new = function() {
    dart.global.Object.getPrototypeOf(Object_FixedLengthListMixin$36$).new.call(this);
  }).prototype = Object_FixedLengthListMixin$36$.prototype;
  dart.applyMixin(Object_FixedLengthListMixin$36$, G.FixedLengthListMixinOfInt32x4());
  _native_typed_data.NativeInt32x4List = class NativeInt32x4List extends Object_FixedLengthListMixin$36$ {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 184, 25, "length");
      return new _native_typed_data.NativeInt32x4List.new(length);
    }
    static ['_#_externalStorage#tearOff'](storage) {
      if (storage == null) dart.nullFailed(I[71], 186, 48, "storage");
      return new _native_typed_data.NativeInt32x4List._externalStorage(storage);
    }
    static ['_#_slowFromList#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 188, 49, "list");
      return new _native_typed_data.NativeInt32x4List._slowFromList(list);
    }
    get runtimeType() {
      return dart_rti.createRuntimeType(T$0.Int32x4List());
    }
    static fromList(list) {
      if (list == null) dart.nullFailed(I[71], 203, 52, "list");
      if (T$0.NativeInt32x4List()[_is](list)) {
        return new _native_typed_data.NativeInt32x4List._externalStorage(_native_typed_data.NativeInt32List.fromList(list[_storage$]));
      } else {
        return new _native_typed_data.NativeInt32x4List._slowFromList(list);
      }
    }
    static ['_#fromList#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 203, 52, "list");
      return _native_typed_data.NativeInt32x4List.fromList(list);
    }
    get buffer() {
      return this[_storage$][$buffer];
    }
    get lengthInBytes() {
      return this[_storage$][$lengthInBytes];
    }
    get offsetInBytes() {
      return this[_storage$][$offsetInBytes];
    }
    get elementSizeInBytes() {
      return 16;
    }
    get length() {
      return (dart.notNull(this[_storage$][$length]) / 4)[$truncate]();
    }
    set length(value) {
      super.length = value;
    }
    _get(index) {
      if (index == null) dart.nullFailed(I[71], 222, 27, "index");
      _native_typed_data._checkValidIndex(index, this, this.length);
      let _x = this[_storage$][$_get](dart.notNull(index) * 4 + 0);
      let _y = this[_storage$][$_get](dart.notNull(index) * 4 + 1);
      let _z = this[_storage$][$_get](dart.notNull(index) * 4 + 2);
      let _w = this[_storage$][$_get](dart.notNull(index) * 4 + 3);
      return new _native_typed_data.NativeInt32x4._truncated(_x, _y, _z, _w);
    }
    _set(index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[71], 231, 25, "index");
      T$0.Int32x4()[_as](value);
      if (value == null) dart.nullFailed(I[71], 231, 40, "value");
      _native_typed_data._checkValidIndex(index, this, this.length);
      this[_storage$][$_set](dart.notNull(index) * 4 + 0, value.x);
      this[_storage$][$_set](dart.notNull(index) * 4 + 1, value.y);
      this[_storage$][$_set](dart.notNull(index) * 4 + 2, value.z);
      this[_storage$][$_set](dart.notNull(index) * 4 + 3, value.w);
      return value$;
    }
    asUnmodifiableView() {
      return new _native_typed_data._UnmodifiableInt32x4ListView.new(this);
    }
    sublist(start, end = null) {
      if (start == null) dart.nullFailed(I[71], 241, 27, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this.length);
      return new _native_typed_data.NativeInt32x4List._externalStorage(this[_storage$][$sublist](dart.notNull(start) * 4, dart.notNull(stop) * 4));
    }
  };
  (_native_typed_data.NativeInt32x4List.new = function(length) {
    if (length == null) dart.nullFailed(I[71], 184, 25, "length");
    this[_storage$] = _native_typed_data.NativeInt32List.new(dart.notNull(length) * 4);
    this.$ti = this.$ti || T$0.NativeInt32x4List();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32x4List).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeInt32x4List.prototype;
  (_native_typed_data.NativeInt32x4List._externalStorage = function(storage) {
    if (storage == null) dart.nullFailed(I[71], 186, 48, "storage");
    this[_storage$] = storage;
    this.$ti = this.$ti || T$0.NativeInt32x4List();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32x4List).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeInt32x4List.prototype;
  (_native_typed_data.NativeInt32x4List._slowFromList = function(list) {
    if (list == null) dart.nullFailed(I[71], 188, 49, "list");
    this[_storage$] = _native_typed_data.NativeInt32List.new(dart.notNull(list[$length]) * 4);
    this.$ti = this.$ti || T$0.NativeInt32x4List();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32x4List).new.call(this);
    for (let i = 0; i < dart.notNull(list[$length]); i = i + 1) {
      let e = list[$_get](i);
      this[_storage$][$_set](i * 4 + 0, e.x);
      this[_storage$][$_set](i * 4 + 1, e.y);
      this[_storage$][$_set](i * 4 + 2, e.z);
      this[_storage$][$_set](i * 4 + 3, e.w);
    }
  }).prototype = _native_typed_data.NativeInt32x4List.prototype;
  dart.addRtiResources(_native_typed_data.NativeInt32x4List, ["_native_typed_data|NativeInt32x4List", "typed_data|Int32x4List", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeInt32x4List, () => dart.global.Object.setPrototypeOf({
    _get: T$0.intToInt32x4(),
    [$_get]: T$0.intToInt32x4(),
    _set: T$.intAndObjectNTovoid(),
    [$_set]: T$.intAndObjectNTovoid(),
    asUnmodifiableView: T$0.VoidToInt32x4List(),
    sublist: T$0.intAndintNToInt32x4List$1(),
    [$sublist]: T$0.intAndintNToInt32x4List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32x4List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeInt32x4List, () => ['fromList']);
  dart.setGetterSignature(_native_typed_data.NativeInt32x4List, () => dart.global.Object.setPrototypeOf({
    buffer: T$0.ByteBuffer(),
    [$buffer]: T$0.ByteBuffer(),
    lengthInBytes: T$.int(),
    [$lengthInBytes]: T$.int(),
    offsetInBytes: T$.int(),
    [$offsetInBytes]: T$.int(),
    elementSizeInBytes: T$.int(),
    [$elementSizeInBytes]: T$.int(),
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32x4List))));
  dart.setLibraryUri(_native_typed_data.NativeInt32x4List, I[72]);
  dart.setFieldSignature(_native_typed_data.NativeInt32x4List, () => dart.global.Object.setPrototypeOf({[_storage$]: {type: T$0.Int32List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32x4List))));
  dart.defineExtensionMethods(_native_typed_data.NativeInt32x4List, ['_get', '_set', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data.NativeInt32x4List, [
    'runtimeType',
    'buffer',
    'lengthInBytes',
    'offsetInBytes',
    'elementSizeInBytes',
    'length'
  ]);
  const Object_ListBase$36$0 = class Object_ListBase extends core.Object {};
  (Object_ListBase$36$0.new = function() {
    G.ListBaseOfFloat64x2().new.call(this);
  }).prototype = Object_ListBase$36$0.prototype;
  dart.applyMixin(Object_ListBase$36$0, G.ListBaseOfFloat64x2());
  const Object_FixedLengthListMixin$36$0 = class Object_FixedLengthListMixin extends Object_ListBase$36$0 {};
  (Object_FixedLengthListMixin$36$0.new = function() {
    dart.global.Object.getPrototypeOf(Object_FixedLengthListMixin$36$0).new.call(this);
  }).prototype = Object_FixedLengthListMixin$36$0.prototype;
  dart.applyMixin(Object_FixedLengthListMixin$36$0, G.FixedLengthListMixinOfFloat64x2());
  _native_typed_data.NativeFloat64x2List = class NativeFloat64x2List extends Object_FixedLengthListMixin$36$0 {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 258, 27, "length");
      return new _native_typed_data.NativeFloat64x2List.new(length);
    }
    static ['_#_externalStorage#tearOff'](_storage) {
      if (_storage == null) dart.nullFailed(I[71], 260, 45, "_storage");
      return new _native_typed_data.NativeFloat64x2List._externalStorage(_storage);
    }
    static ['_#_slowFromList#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 262, 53, "list");
      return new _native_typed_data.NativeFloat64x2List._slowFromList(list);
    }
    static fromList(list) {
      if (list == null) dart.nullFailed(I[71], 273, 56, "list");
      if (T$0.NativeFloat64x2List()[_is](list)) {
        return new _native_typed_data.NativeFloat64x2List._externalStorage(_native_typed_data.NativeFloat64List.fromList(list[_storage$]));
      } else {
        return new _native_typed_data.NativeFloat64x2List._slowFromList(list);
      }
    }
    static ['_#fromList#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 273, 56, "list");
      return _native_typed_data.NativeFloat64x2List.fromList(list);
    }
    get runtimeType() {
      return dart_rti.createRuntimeType(T$0.Float64x2List());
    }
    get buffer() {
      return this[_storage$][$buffer];
    }
    get lengthInBytes() {
      return this[_storage$][$lengthInBytes];
    }
    get offsetInBytes() {
      return this[_storage$][$offsetInBytes];
    }
    get elementSizeInBytes() {
      return 16;
    }
    get length() {
      return (dart.notNull(this[_storage$][$length]) / 2)[$truncate]();
    }
    set length(value) {
      super.length = value;
    }
    _get(index) {
      if (index == null) dart.nullFailed(I[71], 294, 29, "index");
      _native_typed_data._checkValidIndex(index, this, this.length);
      let _x = this[_storage$][$_get](dart.notNull(index) * 2 + 0);
      let _y = this[_storage$][$_get](dart.notNull(index) * 2 + 1);
      return new _native_typed_data.NativeFloat64x2.new(_x, _y);
    }
    _set(index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[71], 301, 25, "index");
      T$0.Float64x2()[_as](value);
      if (value == null) dart.nullFailed(I[71], 301, 42, "value");
      _native_typed_data._checkValidIndex(index, this, this.length);
      this[_storage$][$_set](dart.notNull(index) * 2 + 0, value.x);
      this[_storage$][$_set](dart.notNull(index) * 2 + 1, value.y);
      return value$;
    }
    asUnmodifiableView() {
      return new _native_typed_data._UnmodifiableFloat64x2ListView.new(this);
    }
    sublist(start, end = null) {
      if (start == null) dart.nullFailed(I[71], 309, 29, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this.length);
      return new _native_typed_data.NativeFloat64x2List._externalStorage(this[_storage$][$sublist](dart.notNull(start) * 2, dart.notNull(stop) * 2));
    }
  };
  (_native_typed_data.NativeFloat64x2List.new = function(length) {
    if (length == null) dart.nullFailed(I[71], 258, 27, "length");
    this[_storage$] = _native_typed_data.NativeFloat64List.new(dart.notNull(length) * 2);
    this.$ti = this.$ti || T$0.NativeFloat64x2List();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64x2List).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeFloat64x2List.prototype;
  (_native_typed_data.NativeFloat64x2List._externalStorage = function(_storage) {
    if (_storage == null) dart.nullFailed(I[71], 260, 45, "_storage");
    this[_storage$] = _storage;
    this.$ti = this.$ti || T$0.NativeFloat64x2List();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64x2List).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeFloat64x2List.prototype;
  (_native_typed_data.NativeFloat64x2List._slowFromList = function(list) {
    if (list == null) dart.nullFailed(I[71], 262, 53, "list");
    this[_storage$] = _native_typed_data.NativeFloat64List.new(dart.notNull(list[$length]) * 2);
    this.$ti = this.$ti || T$0.NativeFloat64x2List();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64x2List).new.call(this);
    for (let i = 0; i < dart.notNull(list[$length]); i = i + 1) {
      let e = list[$_get](i);
      this[_storage$][$_set](i * 2 + 0, e.x);
      this[_storage$][$_set](i * 2 + 1, e.y);
    }
  }).prototype = _native_typed_data.NativeFloat64x2List.prototype;
  dart.addRtiResources(_native_typed_data.NativeFloat64x2List, ["_native_typed_data|NativeFloat64x2List", "typed_data|Float64x2List", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeFloat64x2List, () => dart.global.Object.setPrototypeOf({
    _get: T$0.intToFloat64x2(),
    [$_get]: T$0.intToFloat64x2(),
    _set: T$.intAndObjectNTovoid(),
    [$_set]: T$.intAndObjectNTovoid(),
    asUnmodifiableView: T$0.VoidToFloat64x2List(),
    sublist: T$0.intAndintNToFloat64x2List$1(),
    [$sublist]: T$0.intAndintNToFloat64x2List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64x2List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeFloat64x2List, () => ['fromList']);
  dart.setGetterSignature(_native_typed_data.NativeFloat64x2List, () => dart.global.Object.setPrototypeOf({
    buffer: T$0.ByteBuffer(),
    [$buffer]: T$0.ByteBuffer(),
    lengthInBytes: T$.int(),
    [$lengthInBytes]: T$.int(),
    offsetInBytes: T$.int(),
    [$offsetInBytes]: T$.int(),
    elementSizeInBytes: T$.int(),
    [$elementSizeInBytes]: T$.int(),
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64x2List))));
  dart.setLibraryUri(_native_typed_data.NativeFloat64x2List, I[72]);
  dart.setFieldSignature(_native_typed_data.NativeFloat64x2List, () => dart.global.Object.setPrototypeOf({[_storage$]: {type: T$0.Float64List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64x2List))));
  dart.defineExtensionMethods(_native_typed_data.NativeFloat64x2List, ['_get', '_set', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data.NativeFloat64x2List, [
    'runtimeType',
    'buffer',
    'lengthInBytes',
    'offsetInBytes',
    'elementSizeInBytes',
    'length'
  ]);
  var _invalidPosition = dart.privateName(_native_typed_data, "_invalidPosition");
  var _checkPosition = dart.privateName(_native_typed_data, "_checkPosition");
  _native_typed_data.NativeTypedData = class NativeTypedData extends _interceptors.JavaScriptObject {
    get [$buffer]() {
      return this.buffer;
    }
    get [$lengthInBytes]() {
      return this.byteLength;
    }
    get [$offsetInBytes]() {
      return this.byteOffset;
    }
    get [$elementSizeInBytes]() {
      return this.BYTES_PER_ELEMENT;
    }
    [_invalidPosition](position, length, name) {
      if (position == null) dart.nullFailed(I[71], 336, 29, "position");
      if (length == null) dart.nullFailed(I[71], 336, 43, "length");
      if (name == null) dart.nullFailed(I[71], 336, 58, "name");
      if (!T$.int()[_is](position)) {
        dart.throw(new core.ArgumentError.value(position, name, "Invalid list position"));
      } else {
        dart.throw(new core.RangeError.range(position, 0, length, name));
      }
    }
    [_checkPosition](position, length, name) {
      if (position == null) dart.nullFailed(I[71], 344, 27, "position");
      if (length == null) dart.nullFailed(I[71], 344, 41, "length");
      if (name == null) dart.nullFailed(I[71], 344, 56, "name");
      if (position >>> 0 !== position || position > dart.notNull(length)) {
        this[_invalidPosition](position, length, name);
      }
    }
    static ['_#new#tearOff']() {
      return new _native_typed_data.NativeTypedData.new();
    }
  };
  (_native_typed_data.NativeTypedData.new = function() {
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeTypedData).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeTypedData.prototype;
  dart.addRtiResources(_native_typed_data.NativeTypedData, ["_native_typed_data|NativeTypedData", "typed_data|TypedData"]);
  dart.setMethodSignature(_native_typed_data.NativeTypedData, () => dart.global.Object.setPrototypeOf({
    [_invalidPosition]: T$0.intAndintAndStringTovoid(),
    [_checkPosition]: T$0.intAndintAndStringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeTypedData))));
  dart.setGetterSignature(_native_typed_data.NativeTypedData, () => dart.global.Object.setPrototypeOf({
    [$buffer]: T$0.ByteBuffer(),
    [$lengthInBytes]: T$.int(),
    [$offsetInBytes]: T$.int(),
    [$elementSizeInBytes]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeTypedData))));
  dart.setLibraryUri(_native_typed_data.NativeTypedData, I[72]);
  dart.registerExtension("ArrayBufferView", _native_typed_data.NativeTypedData);
  var Endian__littleEndian = dart.privateName(typed_data, "Endian._littleEndian");
  var _getFloat32 = dart.privateName(_native_typed_data, "_getFloat32");
  var _getFloat64 = dart.privateName(_native_typed_data, "_getFloat64");
  var _getInt16 = dart.privateName(_native_typed_data, "_getInt16");
  var _getInt32 = dart.privateName(_native_typed_data, "_getInt32");
  var _getUint16 = dart.privateName(_native_typed_data, "_getUint16");
  var _getUint32 = dart.privateName(_native_typed_data, "_getUint32");
  var _setFloat32 = dart.privateName(_native_typed_data, "_setFloat32");
  var _setFloat64 = dart.privateName(_native_typed_data, "_setFloat64");
  var _setInt16 = dart.privateName(_native_typed_data, "_setInt16");
  var _setInt32 = dart.privateName(_native_typed_data, "_setInt32");
  var _setUint16 = dart.privateName(_native_typed_data, "_setUint16");
  var _setUint32 = dart.privateName(_native_typed_data, "_setUint32");
  _native_typed_data.NativeByteData = class NativeByteData extends _native_typed_data.NativeTypedData {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 392, 30, "length");
      return _native_typed_data.NativeByteData._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 392, 30, "length");
      return _native_typed_data.NativeByteData.new(length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 405, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 405, 30, "offsetInBytes");
      return _native_typed_data.NativeByteData.view(buffer, offsetInBytes, length);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 405, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 405, 30, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      return length == null ? _native_typed_data.NativeByteData._create2(buffer, offsetInBytes) : _native_typed_data.NativeByteData._create3(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.ByteData());
    }
    get [$elementSizeInBytes]() {
      return 1;
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableByteDataView.new(this);
    }
    [$getFloat32](byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 424, 25, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 424, 45, "endian");
      return this[_getFloat32](byteOffset, dart.equals(typed_data.Endian.little, endian));
    }
    [_getFloat32](...args) {
      return this.getFloat32.apply(this, args);
    }
    [$getFloat64](byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 437, 25, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 437, 45, "endian");
      return this[_getFloat64](byteOffset, dart.equals(typed_data.Endian.little, endian));
    }
    [_getFloat64](...args) {
      return this.getFloat64.apply(this, args);
    }
    [$getInt16](byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 452, 20, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 452, 40, "endian");
      return this[_getInt16](byteOffset, dart.equals(typed_data.Endian.little, endian));
    }
    [_getInt16](...args) {
      return this.getInt16.apply(this, args);
    }
    [$getInt32](byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 467, 20, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 467, 40, "endian");
      return this[_getInt32](byteOffset, dart.equals(typed_data.Endian.little, endian));
    }
    [_getInt32](...args) {
      return this.getInt32.apply(this, args);
    }
    [$getInt64](byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 482, 20, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 482, 40, "endian");
      dart.throw(new core.UnsupportedError.new("Int64 accessor not supported by dart2js."));
    }
    [$getInt8](...args) {
      return this.getInt8.apply(this, args);
    }
    [$getUint16](byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 501, 21, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 501, 41, "endian");
      return this[_getUint16](byteOffset, dart.equals(typed_data.Endian.little, endian));
    }
    [_getUint16](...args) {
      return this.getUint16.apply(this, args);
    }
    [$getUint32](byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 515, 21, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 515, 41, "endian");
      return this[_getUint32](byteOffset, dart.equals(typed_data.Endian.little, endian));
    }
    [_getUint32](...args) {
      return this.getUint32.apply(this, args);
    }
    [$getUint64](byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 529, 21, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 529, 41, "endian");
      dart.throw(new core.UnsupportedError.new("Uint64 accessor not supported by dart2js."));
    }
    [$getUint8](...args) {
      return this.getUint8.apply(this, args);
    }
    [$setFloat32](byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 556, 23, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 556, 39, "value");
      if (endian == null) dart.nullFailed(I[71], 556, 54, "endian");
      return this[_setFloat32](byteOffset, value, dart.equals(typed_data.Endian.little, endian));
    }
    [_setFloat32](...args) {
      return this.setFloat32.apply(this, args);
    }
    [$setFloat64](byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 568, 23, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 568, 39, "value");
      if (endian == null) dart.nullFailed(I[71], 568, 54, "endian");
      return this[_setFloat64](byteOffset, value, dart.equals(typed_data.Endian.little, endian));
    }
    [_setFloat64](...args) {
      return this.setFloat64.apply(this, args);
    }
    [$setInt16](byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 581, 21, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 581, 37, "value");
      if (endian == null) dart.nullFailed(I[71], 581, 52, "endian");
      return this[_setInt16](byteOffset, value, dart.equals(typed_data.Endian.little, endian));
    }
    [_setInt16](...args) {
      return this.setInt16.apply(this, args);
    }
    [$setInt32](byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 594, 21, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 594, 37, "value");
      if (endian == null) dart.nullFailed(I[71], 594, 52, "endian");
      return this[_setInt32](byteOffset, value, dart.equals(typed_data.Endian.little, endian));
    }
    [_setInt32](...args) {
      return this.setInt32.apply(this, args);
    }
    [$setInt64](byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 607, 21, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 607, 37, "value");
      if (endian == null) dart.nullFailed(I[71], 607, 52, "endian");
      dart.throw(new core.UnsupportedError.new("Int64 accessor not supported by dart2js."));
    }
    [$setInt8](...args) {
      return this.setInt8.apply(this, args);
    }
    [$setUint16](byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 627, 22, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 627, 38, "value");
      if (endian == null) dart.nullFailed(I[71], 627, 53, "endian");
      return this[_setUint16](byteOffset, value, dart.equals(typed_data.Endian.little, endian));
    }
    [_setUint16](...args) {
      return this.setUint16.apply(this, args);
    }
    [$setUint32](byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 640, 22, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 640, 38, "value");
      if (endian == null) dart.nullFailed(I[71], 640, 53, "endian");
      return this[_setUint32](byteOffset, value, dart.equals(typed_data.Endian.little, endian));
    }
    [_setUint32](...args) {
      return this.setUint32.apply(this, args);
    }
    [$setUint64](byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 653, 22, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 653, 38, "value");
      if (endian == null) dart.nullFailed(I[71], 653, 53, "endian");
      dart.throw(new core.UnsupportedError.new("Uint64 accessor not supported by dart2js."));
    }
    [$setUint8](...args) {
      return this.setUint8.apply(this, args);
    }
    static _create1(arg) {
      return new DataView(new ArrayBuffer(arg));
    }
    static _create2(arg1, arg2) {
      return new DataView(arg1, arg2);
    }
    static _create3(arg1, arg2, arg3) {
      return new DataView(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeByteData, ["_native_typed_data|NativeByteData", "typed_data|ByteData", "typed_data|TypedData"]);
  dart.setMethodSignature(_native_typed_data.NativeByteData, () => dart.global.Object.setPrototypeOf({
    [$asUnmodifiableView]: T$0.VoidToByteData(),
    [$getFloat32]: T$0.intAndEndianTodouble(),
    [_getFloat32]: T$0.intAndboolNTodouble(),
    [$getFloat64]: T$0.intAndEndianTodouble(),
    [_getFloat64]: T$0.intAndboolNTodouble(),
    [$getInt16]: T$0.intAndEndianToint(),
    [_getInt16]: T$0.intAndboolNToint(),
    [$getInt32]: T$0.intAndEndianToint(),
    [_getInt32]: T$0.intAndboolNToint(),
    [$getInt64]: T$0.intAndEndianToint(),
    [$getInt8]: T$.intToint(),
    [$getUint16]: T$0.intAndEndianToint(),
    [_getUint16]: T$0.intAndboolNToint(),
    [$getUint32]: T$0.intAndEndianToint(),
    [_getUint32]: T$0.intAndboolNToint(),
    [$getUint64]: T$0.intAndEndianToint(),
    [$getUint8]: T$.intToint(),
    [$setFloat32]: T$0.intAndnumAndEndianTovoid(),
    [_setFloat32]: T$0.intAndnumAndboolNTovoid(),
    [$setFloat64]: T$0.intAndnumAndEndianTovoid(),
    [_setFloat64]: T$0.intAndnumAndboolNTovoid(),
    [$setInt16]: T$0.intAndintAndEndianTovoid(),
    [_setInt16]: T$0.intAndintAndboolNTovoid(),
    [$setInt32]: T$0.intAndintAndEndianTovoid(),
    [_setInt32]: T$0.intAndintAndboolNTovoid(),
    [$setInt64]: T$0.intAndintAndEndianTovoid(),
    [$setInt8]: T$.intAndintTovoid(),
    [$setUint16]: T$0.intAndintAndEndianTovoid(),
    [_setUint16]: T$0.intAndintAndboolNTovoid(),
    [$setUint32]: T$0.intAndintAndEndianTovoid(),
    [_setUint32]: T$0.intAndintAndboolNTovoid(),
    [$setUint64]: T$0.intAndintAndEndianTovoid(),
    [$setUint8]: T$.intAndintTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeByteData))));
  dart.setStaticMethodSignature(_native_typed_data.NativeByteData, () => ['new', 'view', '_create1', '_create2', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeByteData, I[72]);
  dart.registerExtension("DataView", _native_typed_data.NativeByteData);
  var _setRangeFast = dart.privateName(_native_typed_data, "_setRangeFast");
  _native_typed_data.NativeTypedArray$ = dart.generic(E => {
    var __t$NativeTypedArrayOfE = () => (__t$NativeTypedArrayOfE = dart.constFn(E[_eval]("_native_typed_data|NativeTypedArray<0>")))();
    class NativeTypedArray extends _native_typed_data.NativeTypedData {
      [_setRangeFast](start, end, source, skipCount) {
        if (start == null) dart.nullFailed(I[71], 681, 11, "start");
        if (end == null) dart.nullFailed(I[71], 681, 22, "end");
        if (source == null) dart.nullFailed(I[71], 681, 44, "source");
        if (skipCount == null) dart.nullFailed(I[71], 681, 56, "skipCount");
        let targetLength = this[$length];
        this[_checkPosition](start, targetLength, "start");
        this[_checkPosition](end, targetLength, "end");
        if (dart.notNull(start) > dart.notNull(end)) dart.throw(new core.RangeError.range(start, 0, end));
        let count = dart.notNull(end) - dart.notNull(start);
        if (dart.notNull(skipCount) < 0) dart.throw(new core.ArgumentError.new(skipCount));
        let sourceLength = source[$length];
        if (dart.notNull(sourceLength) - dart.notNull(skipCount) < count) {
          dart.throw(new core.StateError.new("Not enough elements"));
        }
        if (skipCount !== 0 || sourceLength !== count) {
          source = source.subarray(skipCount, dart.notNull(skipCount) + count);
        }
        this.set(source, start);
      }
    }
    (NativeTypedArray.new = function() {
      this.$ti = this.$ti || __t$NativeTypedArrayOfE();
      dart.global.Object.getPrototypeOf(NativeTypedArray).new.call(this);
      ;
    }).prototype = NativeTypedArray.prototype;
    dart.addRtiResources(NativeTypedArray, ["_native_typed_data|NativeTypedArray", "_js_helper|JavaScriptIndexingBehavior", "_interceptors|JSMutableIndexable", "_interceptors|JSIndexable"]);
    dart.setMethodSignature(NativeTypedArray, () => dart.global.Object.setPrototypeOf({[_setRangeFast]: T$0.intAndintAndNativeTypedArray__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(NativeTypedArray))));
    dart.setLibraryUri(NativeTypedArray, I[72]);
    return NativeTypedArray;
  });
  _native_typed_data.NativeTypedArray = _native_typed_data.NativeTypedArray$();
  const NativeTypedArray_ListBase$36 = class NativeTypedArray_ListBase extends G.NativeTypedArrayOfdouble() {};
  (NativeTypedArray_ListBase$36.new = function() {
    G.ListBaseOfdouble().new.call(this);
    dart.global.Object.getPrototypeOf(NativeTypedArray_ListBase$36).new.call(this);
  }).prototype = NativeTypedArray_ListBase$36.prototype;
  dart.applyMixin(NativeTypedArray_ListBase$36, G.ListBaseOfdouble());
  const NativeTypedArray_FixedLengthListMixin$36 = class NativeTypedArray_FixedLengthListMixin extends NativeTypedArray_ListBase$36 {};
  (NativeTypedArray_FixedLengthListMixin$36.new = function() {
    dart.global.Object.getPrototypeOf(NativeTypedArray_FixedLengthListMixin$36).new.call(this);
  }).prototype = NativeTypedArray_FixedLengthListMixin$36.prototype;
  dart.applyMixin(NativeTypedArray_FixedLengthListMixin$36, G.FixedLengthListMixinOfdouble());
  _native_typed_data.NativeTypedArrayOfDouble = class NativeTypedArrayOfDouble extends NativeTypedArray_FixedLengthListMixin$36 {
    get length() {
      return this.length;
    }
    set length(value) {
      super.length = value;
    }
    _get(index) {
      if (index == null) dart.nullFailed(I[71], 707, 26, "index");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      return this[index];
    }
    _set(index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[71], 712, 25, "index");
      T$.num()[_as](value);
      if (value == null) dart.nullFailed(I[71], 712, 36, "value");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      this[index] = value;
      return value$;
    }
    setRange(start, end, iterable, skipCount = 0) {
      if (start == null) dart.nullFailed(I[71], 717, 21, "start");
      if (end == null) dart.nullFailed(I[71], 717, 32, "end");
      T$0.IterableOfdouble()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[71], 717, 54, "iterable");
      if (skipCount == null) dart.nullFailed(I[71], 718, 12, "skipCount");
      if (T$0.NativeTypedArrayOfDouble()[_is](iterable)) {
        this[_setRangeFast](start, end, iterable, skipCount);
        return;
      }
      super[$setRange](start, end, iterable, skipCount);
    }
  };
  (_native_typed_data.NativeTypedArrayOfDouble.new = function() {
    this.$ti = this.$ti || T$0.NativeTypedArrayOfDouble();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeTypedArrayOfDouble).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeTypedArrayOfDouble.prototype;
  dart.addRtiResources(_native_typed_data.NativeTypedArrayOfDouble, ["_native_typed_data|NativeTypedArrayOfDouble"]);
  dart.setMethodSignature(_native_typed_data.NativeTypedArrayOfDouble, () => dart.global.Object.setPrototypeOf({
    _get: T$0.intTodouble(),
    [$_get]: T$0.intTodouble(),
    _set: T$.intAndObjectNTovoid(),
    [$_set]: T$.intAndObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeTypedArrayOfDouble))));
  dart.setGetterSignature(_native_typed_data.NativeTypedArrayOfDouble, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeTypedArrayOfDouble))));
  dart.setLibraryUri(_native_typed_data.NativeTypedArrayOfDouble, I[72]);
  dart.defineExtensionMethods(_native_typed_data.NativeTypedArrayOfDouble, ['_get', '_set', 'setRange']);
  dart.defineExtensionAccessors(_native_typed_data.NativeTypedArrayOfDouble, ['length']);
  const NativeTypedArray_ListBase$36$ = class NativeTypedArray_ListBase extends G.NativeTypedArrayOfint() {};
  (NativeTypedArray_ListBase$36$.new = function() {
    G.ListBaseOfint().new.call(this);
    dart.global.Object.getPrototypeOf(NativeTypedArray_ListBase$36$).new.call(this);
  }).prototype = NativeTypedArray_ListBase$36$.prototype;
  dart.applyMixin(NativeTypedArray_ListBase$36$, G.ListBaseOfint());
  const NativeTypedArray_FixedLengthListMixin$36$ = class NativeTypedArray_FixedLengthListMixin extends NativeTypedArray_ListBase$36$ {};
  (NativeTypedArray_FixedLengthListMixin$36$.new = function() {
    dart.global.Object.getPrototypeOf(NativeTypedArray_FixedLengthListMixin$36$).new.call(this);
  }).prototype = NativeTypedArray_FixedLengthListMixin$36$.prototype;
  dart.applyMixin(NativeTypedArray_FixedLengthListMixin$36$, G.FixedLengthListMixinOfint());
  _native_typed_data.NativeTypedArrayOfInt = class NativeTypedArrayOfInt extends NativeTypedArray_FixedLengthListMixin$36$ {
    get length() {
      return this.length;
    }
    set length(value) {
      super.length = value;
    }
    _set(index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[71], 735, 25, "index");
      T$.int()[_as](value);
      if (value == null) dart.nullFailed(I[71], 735, 36, "value");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      this[index] = value;
      return value$;
    }
    setRange(start, end, iterable, skipCount = 0) {
      if (start == null) dart.nullFailed(I[71], 740, 21, "start");
      if (end == null) dart.nullFailed(I[71], 740, 32, "end");
      T$0.IterableOfint()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[71], 740, 51, "iterable");
      if (skipCount == null) dart.nullFailed(I[71], 741, 12, "skipCount");
      if (T$0.NativeTypedArrayOfInt()[_is](iterable)) {
        this[_setRangeFast](start, end, iterable, skipCount);
        return;
      }
      super[$setRange](start, end, iterable, skipCount);
    }
  };
  (_native_typed_data.NativeTypedArrayOfInt.new = function() {
    this.$ti = this.$ti || T$0.NativeTypedArrayOfInt();
    dart.global.Object.getPrototypeOf(_native_typed_data.NativeTypedArrayOfInt).new.call(this);
    ;
  }).prototype = _native_typed_data.NativeTypedArrayOfInt.prototype;
  dart.addRtiResources(_native_typed_data.NativeTypedArrayOfInt, ["_native_typed_data|NativeTypedArrayOfInt", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeTypedArrayOfInt, () => dart.global.Object.setPrototypeOf({
    _set: T$.intAndObjectNTovoid(),
    [$_set]: T$.intAndObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeTypedArrayOfInt))));
  dart.setGetterSignature(_native_typed_data.NativeTypedArrayOfInt, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeTypedArrayOfInt))));
  dart.setLibraryUri(_native_typed_data.NativeTypedArrayOfInt, I[72]);
  dart.defineExtensionMethods(_native_typed_data.NativeTypedArrayOfInt, ['_set', 'setRange']);
  dart.defineExtensionAccessors(_native_typed_data.NativeTypedArrayOfInt, ['length']);
  _native_typed_data.NativeFloat32List = class NativeFloat32List extends _native_typed_data.NativeTypedArrayOfDouble {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 753, 33, "length");
      return _native_typed_data.NativeFloat32List._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 753, 33, "length");
      return _native_typed_data.NativeFloat32List.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[71], 755, 51, "elements");
      return _native_typed_data.NativeFloat32List._create1(_native_typed_data._ensureNativeList(elements));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[71], 755, 51, "elements");
      return _native_typed_data.NativeFloat32List.fromList(elements);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 759, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 759, 30, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      length == null ? length = ((dart.notNull(buffer[$lengthInBytes]) - dart.notNull(offsetInBytes)) / 4)[$truncate]() : null;
      return _native_typed_data.NativeFloat32List._create3(buffer, offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 759, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 759, 30, "offsetInBytes");
      return _native_typed_data.NativeFloat32List.view(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.Float32List());
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableFloat32ListView.new(this);
    }
    [$sublist](start, end = null) {
      if (start == null) dart.nullFailed(I[71], 770, 27, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this[$length]);
      let source = this.subarray(start, stop);
      return _native_typed_data.NativeFloat32List._create1(source);
    }
    static _create1(arg) {
      return new Float32Array(arg);
    }
    static _create3(arg1, arg2, arg3) {
      return new Float32Array(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeFloat32List, ["_native_typed_data|NativeFloat32List", "typed_data|Float32List", "typed_data|_TypedFloatList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeFloat32List, () => dart.global.Object.setPrototypeOf({
    [$asUnmodifiableView]: T$0.VoidToFloat32List(),
    [$sublist]: T$0.intAndintNToFloat32List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeFloat32List, () => ['new', 'fromList', 'view', '_create1', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeFloat32List, I[72]);
  dart.registerExtension("Float32Array", _native_typed_data.NativeFloat32List);
  _native_typed_data.NativeFloat64List = class NativeFloat64List extends _native_typed_data.NativeTypedArrayOfDouble {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 787, 33, "length");
      return _native_typed_data.NativeFloat64List._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 787, 33, "length");
      return _native_typed_data.NativeFloat64List.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[71], 789, 51, "elements");
      return _native_typed_data.NativeFloat64List._create1(_native_typed_data._ensureNativeList(elements));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[71], 789, 51, "elements");
      return _native_typed_data.NativeFloat64List.fromList(elements);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 793, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 793, 30, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      length == null ? length = ((dart.notNull(buffer[$lengthInBytes]) - dart.notNull(offsetInBytes)) / 8)[$truncate]() : null;
      return _native_typed_data.NativeFloat64List._create3(buffer, offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 793, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 793, 30, "offsetInBytes");
      return _native_typed_data.NativeFloat64List.view(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.Float64List());
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableFloat64ListView.new(this);
    }
    [$sublist](start, end = null) {
      if (start == null) dart.nullFailed(I[71], 804, 27, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this[$length]);
      let source = this.subarray(start, stop);
      return _native_typed_data.NativeFloat64List._create1(source);
    }
    static _create1(arg) {
      return new Float64Array(arg);
    }
    static _create3(arg1, arg2, arg3) {
      return new Float64Array(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeFloat64List, ["_native_typed_data|NativeFloat64List", "typed_data|Float64List", "typed_data|_TypedFloatList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeFloat64List, () => dart.global.Object.setPrototypeOf({
    [$asUnmodifiableView]: T$0.VoidToFloat64List(),
    [$sublist]: T$0.intAndintNToFloat64List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeFloat64List, () => ['new', 'fromList', 'view', '_create1', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeFloat64List, I[72]);
  dart.registerExtension("Float64Array", _native_typed_data.NativeFloat64List);
  _native_typed_data.NativeInt16List = class NativeInt16List extends _native_typed_data.NativeTypedArrayOfInt {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 819, 31, "length");
      return _native_typed_data.NativeInt16List._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 819, 31, "length");
      return _native_typed_data.NativeInt16List.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[71], 821, 46, "elements");
      return _native_typed_data.NativeInt16List._create1(_native_typed_data._ensureNativeList(elements));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[71], 821, 46, "elements");
      return _native_typed_data.NativeInt16List.fromList(elements);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 825, 24, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 825, 36, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      length == null ? length = ((dart.notNull(buffer[$lengthInBytes]) - dart.notNull(offsetInBytes)) / 2)[$truncate]() : null;
      return _native_typed_data.NativeInt16List._create3(buffer, offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 825, 24, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 825, 36, "offsetInBytes");
      return _native_typed_data.NativeInt16List.view(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.Int16List());
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[71], 834, 23, "index");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      return this[index];
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableInt16ListView.new(this);
    }
    [$sublist](start, end = null) {
      if (start == null) dart.nullFailed(I[71], 841, 25, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this[$length]);
      let source = this.subarray(start, stop);
      return _native_typed_data.NativeInt16List._create1(source);
    }
    static _create1(arg) {
      return new Int16Array(arg);
    }
    static _create3(arg1, arg2, arg3) {
      return new Int16Array(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeInt16List, ["_native_typed_data|NativeInt16List", "typed_data|Int16List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeInt16List, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$.intToint(),
    [$asUnmodifiableView]: T$0.VoidToInt16List(),
    [$sublist]: T$0.intAndintNToInt16List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt16List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeInt16List, () => ['new', 'fromList', 'view', '_create1', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeInt16List, I[72]);
  dart.registerExtension("Int16Array", _native_typed_data.NativeInt16List);
  _native_typed_data.NativeInt32List = class NativeInt32List extends _native_typed_data.NativeTypedArrayOfInt {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 856, 31, "length");
      return _native_typed_data.NativeInt32List._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 856, 31, "length");
      return _native_typed_data.NativeInt32List.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[71], 858, 46, "elements");
      return _native_typed_data.NativeInt32List._create1(_native_typed_data._ensureNativeList(elements));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[71], 858, 46, "elements");
      return _native_typed_data.NativeInt32List.fromList(elements);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 862, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 862, 30, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      length == null ? length = ((dart.notNull(buffer[$lengthInBytes]) - dart.notNull(offsetInBytes)) / 4)[$truncate]() : null;
      return _native_typed_data.NativeInt32List._create3(buffer, offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 862, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 862, 30, "offsetInBytes");
      return _native_typed_data.NativeInt32List.view(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.Int32List());
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[71], 871, 23, "index");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      return this[index];
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableInt32ListView.new(this);
    }
    [$sublist](start, end = null) {
      if (start == null) dart.nullFailed(I[71], 878, 25, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this[$length]);
      let source = this.subarray(start, stop);
      return _native_typed_data.NativeInt32List._create1(source);
    }
    static _create1(arg) {
      return new Int32Array(arg);
    }
    static _create3(arg1, arg2, arg3) {
      return new Int32Array(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeInt32List, ["_native_typed_data|NativeInt32List", "typed_data|Int32List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeInt32List, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$.intToint(),
    [$asUnmodifiableView]: T$0.VoidToInt32List(),
    [$sublist]: T$0.intAndintNToInt32List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeInt32List, () => ['new', 'fromList', 'view', '_create1', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeInt32List, I[72]);
  dart.registerExtension("Int32Array", _native_typed_data.NativeInt32List);
  _native_typed_data.NativeInt8List = class NativeInt8List extends _native_typed_data.NativeTypedArrayOfInt {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 894, 30, "length");
      return _native_typed_data.NativeInt8List._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 894, 30, "length");
      return _native_typed_data.NativeInt8List.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[71], 896, 45, "elements");
      return _native_typed_data.NativeInt8List._create1(_native_typed_data._ensureNativeList(elements));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[71], 896, 45, "elements");
      return _native_typed_data.NativeInt8List.fromList(elements);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 900, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 900, 30, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      return length == null ? _native_typed_data.NativeInt8List._create2(buffer, offsetInBytes) : _native_typed_data.NativeInt8List._create3(buffer, offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 900, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 900, 30, "offsetInBytes");
      return _native_typed_data.NativeInt8List.view(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.Int8List());
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[71], 909, 23, "index");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      return this[index];
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableInt8ListView.new(this);
    }
    [$sublist](start, end = null) {
      if (start == null) dart.nullFailed(I[71], 916, 24, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this[$length]);
      let source = this.subarray(start, stop);
      return _native_typed_data.NativeInt8List._create1(source);
    }
    static _create1(arg) {
      return new Int8Array(arg);
    }
    static _create2(arg1, arg2) {
      return new Int8Array(arg1, arg2);
    }
    static _create3(arg1, arg2, arg3) {
      return new Int8Array(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeInt8List, ["_native_typed_data|NativeInt8List", "typed_data|Int8List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeInt8List, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$.intToint(),
    [$asUnmodifiableView]: T$0.VoidToInt8List(),
    [$sublist]: T$0.intAndintNToInt8List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt8List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeInt8List, () => ['new', 'fromList', 'view', '_create1', '_create2', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeInt8List, I[72]);
  dart.registerExtension("Int8Array", _native_typed_data.NativeInt8List);
  _native_typed_data.NativeUint16List = class NativeUint16List extends _native_typed_data.NativeTypedArrayOfInt {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 935, 32, "length");
      return _native_typed_data.NativeUint16List._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 935, 32, "length");
      return _native_typed_data.NativeUint16List.new(length);
    }
    static fromList(list) {
      if (list == null) dart.nullFailed(I[71], 937, 47, "list");
      return _native_typed_data.NativeUint16List._create1(_native_typed_data._ensureNativeList(list));
    }
    static ['_#fromList#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 937, 47, "list");
      return _native_typed_data.NativeUint16List.fromList(list);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 941, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 941, 30, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      length == null ? length = ((dart.notNull(buffer[$lengthInBytes]) - dart.notNull(offsetInBytes)) / 2)[$truncate]() : null;
      return _native_typed_data.NativeUint16List._create3(buffer, offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 941, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 941, 30, "offsetInBytes");
      return _native_typed_data.NativeUint16List.view(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.Uint16List());
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[71], 950, 23, "index");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      return this[index];
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableUint16ListView.new(this);
    }
    [$sublist](start, end = null) {
      if (start == null) dart.nullFailed(I[71], 957, 26, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this[$length]);
      let source = this.subarray(start, stop);
      return _native_typed_data.NativeUint16List._create1(source);
    }
    static _create1(arg) {
      return new Uint16Array(arg);
    }
    static _create3(arg1, arg2, arg3) {
      return new Uint16Array(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeUint16List, ["_native_typed_data|NativeUint16List", "typed_data|Uint16List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeUint16List, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$.intToint(),
    [$asUnmodifiableView]: T$0.VoidToUint16List(),
    [$sublist]: T$0.intAndintNToUint16List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeUint16List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeUint16List, () => ['new', 'fromList', 'view', '_create1', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeUint16List, I[72]);
  dart.registerExtension("Uint16Array", _native_typed_data.NativeUint16List);
  _native_typed_data.NativeUint32List = class NativeUint32List extends _native_typed_data.NativeTypedArrayOfInt {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 974, 32, "length");
      return _native_typed_data.NativeUint32List._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 974, 32, "length");
      return _native_typed_data.NativeUint32List.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[71], 976, 47, "elements");
      return _native_typed_data.NativeUint32List._create1(_native_typed_data._ensureNativeList(elements));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[71], 976, 47, "elements");
      return _native_typed_data.NativeUint32List.fromList(elements);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 980, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 980, 30, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      length == null ? length = ((dart.notNull(buffer[$lengthInBytes]) - dart.notNull(offsetInBytes)) / 4)[$truncate]() : null;
      return _native_typed_data.NativeUint32List._create3(buffer, offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 980, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 980, 30, "offsetInBytes");
      return _native_typed_data.NativeUint32List.view(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.Uint32List());
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[71], 989, 23, "index");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      return this[index];
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableUint32ListView.new(this);
    }
    [$sublist](start, end = null) {
      if (start == null) dart.nullFailed(I[71], 996, 26, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this[$length]);
      let source = this.subarray(start, stop);
      return _native_typed_data.NativeUint32List._create1(source);
    }
    static _create1(arg) {
      return new Uint32Array(arg);
    }
    static _create3(arg1, arg2, arg3) {
      return new Uint32Array(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeUint32List, ["_native_typed_data|NativeUint32List", "typed_data|Uint32List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeUint32List, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$.intToint(),
    [$asUnmodifiableView]: T$0.VoidToUint32List(),
    [$sublist]: T$0.intAndintNToUint32List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeUint32List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeUint32List, () => ['new', 'fromList', 'view', '_create1', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeUint32List, I[72]);
  dart.registerExtension("Uint32Array", _native_typed_data.NativeUint32List);
  _native_typed_data.NativeUint8ClampedList = class NativeUint8ClampedList extends _native_typed_data.NativeTypedArrayOfInt {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 1013, 38, "length");
      return _native_typed_data.NativeUint8ClampedList._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 1013, 38, "length");
      return _native_typed_data.NativeUint8ClampedList.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[71], 1015, 53, "elements");
      return _native_typed_data.NativeUint8ClampedList._create1(_native_typed_data._ensureNativeList(elements));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[71], 1015, 53, "elements");
      return _native_typed_data.NativeUint8ClampedList.fromList(elements);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 1019, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 1019, 30, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      return length == null ? _native_typed_data.NativeUint8ClampedList._create2(buffer, offsetInBytes) : _native_typed_data.NativeUint8ClampedList._create3(buffer, offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 1019, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 1019, 30, "offsetInBytes");
      return _native_typed_data.NativeUint8ClampedList.view(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$0.Uint8ClampedList());
    }
    get [$length]() {
      return this.length;
    }
    set [$length](value) {
      super[$length] = value;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[71], 1030, 23, "index");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      return this[index];
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableUint8ClampedListView.new(this);
    }
    [$sublist](start, end = null) {
      if (start == null) dart.nullFailed(I[71], 1038, 32, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this[$length]);
      let source = this.subarray(start, stop);
      return _native_typed_data.NativeUint8ClampedList._create1(source);
    }
    static _create1(arg) {
      return new Uint8ClampedArray(arg);
    }
    static _create2(arg1, arg2) {
      return new Uint8ClampedArray(arg1, arg2);
    }
    static _create3(arg1, arg2, arg3) {
      return new Uint8ClampedArray(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeUint8ClampedList, ["_native_typed_data|NativeUint8ClampedList", "typed_data|Uint8ClampedList", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeUint8ClampedList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$.intToint(),
    [$asUnmodifiableView]: T$0.VoidToUint8ClampedList(),
    [$sublist]: T$0.intAndintNToUint8ClampedList$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeUint8ClampedList))));
  dart.setStaticMethodSignature(_native_typed_data.NativeUint8ClampedList, () => ['new', 'fromList', 'view', '_create1', '_create2', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeUint8ClampedList, I[72]);
  dart.registerExtension("Uint8ClampedArray", _native_typed_data.NativeUint8ClampedList);
  dart.registerExtension("CanvasPixelArray", _native_typed_data.NativeUint8ClampedList);
  _native_typed_data.NativeUint8List = class NativeUint8List extends _native_typed_data.NativeTypedArrayOfInt {
    static new(length) {
      if (length == null) dart.nullFailed(I[71], 1066, 31, "length");
      return _native_typed_data.NativeUint8List._create1(_native_typed_data._checkLength(length));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[71], 1066, 31, "length");
      return _native_typed_data.NativeUint8List.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[71], 1068, 46, "elements");
      return _native_typed_data.NativeUint8List._create1(_native_typed_data._ensureNativeList(elements));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[71], 1068, 46, "elements");
      return _native_typed_data.NativeUint8List.fromList(elements);
    }
    static view(buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 1072, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 1072, 30, "offsetInBytes");
      _native_typed_data._checkViewArguments(buffer, offsetInBytes, length);
      return length == null ? _native_typed_data.NativeUint8List._create2(buffer, offsetInBytes) : _native_typed_data.NativeUint8List._create3(buffer, offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes, length) {
      if (buffer == null) dart.nullFailed(I[71], 1072, 18, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[71], 1072, 30, "offsetInBytes");
      return _native_typed_data.NativeUint8List.view(buffer, offsetInBytes, length);
    }
    get [$runtimeType]() {
      return dart_rti.createRuntimeType(T$.Uint8List());
    }
    get [$length]() {
      return this.length;
    }
    set [$length](value) {
      super[$length] = value;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[71], 1083, 23, "index");
      _native_typed_data._checkValidIndex(index, this, this[$length]);
      return this[index];
    }
    [$asUnmodifiableView]() {
      return new _native_typed_data._UnmodifiableUint8ListView.new(this);
    }
    [$sublist](start, end = null) {
      if (start == null) dart.nullFailed(I[71], 1090, 25, "start");
      let stop = _native_typed_data._checkValidRange(start, end, this[$length]);
      let source = this.subarray(start, stop);
      return _native_typed_data.NativeUint8List._create1(source);
    }
    static _create1(arg) {
      return new Uint8Array(arg);
    }
    static _create2(arg1, arg2) {
      return new Uint8Array(arg1, arg2);
    }
    static _create3(arg1, arg2, arg3) {
      return new Uint8Array(arg1, arg2, arg3);
    }
  };
  dart.addRtiResources(_native_typed_data.NativeUint8List, ["_native_typed_data|NativeUint8List", "typed_data|Uint8List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data.NativeUint8List, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$.intToint(),
    [$asUnmodifiableView]: T$.VoidToUint8List(),
    [$sublist]: T$0.intAndintNToUint8List$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeUint8List))));
  dart.setStaticMethodSignature(_native_typed_data.NativeUint8List, () => ['new', 'fromList', 'view', '_create1', '_create2', '_create3']);
  dart.setLibraryUri(_native_typed_data.NativeUint8List, I[72]);
  dart.registerExtension("Uint8Array", _native_typed_data.NativeUint8List);
  var x$ = dart.privateName(_native_typed_data, "NativeFloat32x4.x");
  var y$ = dart.privateName(_native_typed_data, "NativeFloat32x4.y");
  var z$ = dart.privateName(_native_typed_data, "NativeFloat32x4.z");
  var w$ = dart.privateName(_native_typed_data, "NativeFloat32x4.w");
  _native_typed_data.NativeFloat32x4 = class NativeFloat32x4 extends core.Object {
    get x() {
      return this[x$];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$];
    }
    set y(value) {
      super.y = value;
    }
    get z() {
      return this[z$];
    }
    set z(value) {
      super.z = value;
    }
    get w() {
      return this[w$];
    }
    set w(value) {
      super.w = value;
    }
    static _truncate(x) {
      _native_typed_data.NativeFloat32x4._list[0] = x;
      return _native_typed_data.NativeFloat32x4._list[0];
    }
    static ['_#new#tearOff'](x, y, z, w) {
      if (x == null) dart.nullFailed(I[71], 1126, 26, "x");
      if (y == null) dart.nullFailed(I[71], 1126, 36, "y");
      if (z == null) dart.nullFailed(I[71], 1126, 46, "z");
      if (w == null) dart.nullFailed(I[71], 1126, 56, "w");
      return new _native_typed_data.NativeFloat32x4.new(x, y, z, w);
    }
    static ['_#splat#tearOff'](v) {
      if (v == null) dart.nullFailed(I[71], 1139, 32, "v");
      return new _native_typed_data.NativeFloat32x4.splat(v);
    }
    static ['_#zero#tearOff']() {
      return new _native_typed_data.NativeFloat32x4.zero();
    }
    static ['_#fromInt32x4Bits#tearOff'](i) {
      if (i == null) dart.nullFailed(I[71], 1143, 51, "i");
      return _native_typed_data.NativeFloat32x4.fromInt32x4Bits(i);
    }
    static fromInt32x4Bits(i) {
      if (i == null) dart.nullFailed(I[71], 1143, 51, "i");
      _native_typed_data.NativeFloat32x4._uint32view[$_set](0, i.x);
      _native_typed_data.NativeFloat32x4._uint32view[$_set](1, i.y);
      _native_typed_data.NativeFloat32x4._uint32view[$_set](2, i.z);
      _native_typed_data.NativeFloat32x4._uint32view[$_set](3, i.w);
      return new _native_typed_data.NativeFloat32x4._truncated(_native_typed_data.NativeFloat32x4._list[$_get](0), _native_typed_data.NativeFloat32x4._list[$_get](1), _native_typed_data.NativeFloat32x4._list[$_get](2), _native_typed_data.NativeFloat32x4._list[$_get](3));
    }
    static ['_#fromFloat64x2#tearOff'](v) {
      if (v == null) dart.nullFailed(I[71], 1151, 43, "v");
      return new _native_typed_data.NativeFloat32x4.fromFloat64x2(v);
    }
    static ['_#_doubles#tearOff'](x, y, z, w) {
      if (x == null) dart.nullFailed(I[71], 1157, 35, "x");
      if (y == null) dart.nullFailed(I[71], 1157, 45, "y");
      if (z == null) dart.nullFailed(I[71], 1157, 55, "z");
      if (w == null) dart.nullFailed(I[71], 1157, 65, "w");
      return new _native_typed_data.NativeFloat32x4._doubles(x, y, z, w);
    }
    static ['_#_truncated#tearOff'](x, y, z, w) {
      if (x == null) dart.nullFailed(I[71], 1168, 35, "x");
      if (y == null) dart.nullFailed(I[71], 1168, 43, "y");
      if (z == null) dart.nullFailed(I[71], 1168, 51, "z");
      if (w == null) dart.nullFailed(I[71], 1168, 59, "w");
      return new _native_typed_data.NativeFloat32x4._truncated(x, y, z, w);
    }
    toString() {
      return "[" + dart.str(this.x) + ", " + dart.str(this.y) + ", " + dart.str(this.z) + ", " + dart.str(this.w) + "]";
    }
    ['+'](other) {
      if (other == null) dart.nullFailed(I[71], 1175, 34, "other");
      let _x = dart.notNull(this.x) + dart.notNull(other.x);
      let _y = dart.notNull(this.y) + dart.notNull(other.y);
      let _z = dart.notNull(this.z) + dart.notNull(other.z);
      let _w = dart.notNull(this.w) + dart.notNull(other.w);
      return new _native_typed_data.NativeFloat32x4._doubles(_x, _y, _z, _w);
    }
    _negate() {
      return new _native_typed_data.NativeFloat32x4._truncated(-dart.notNull(this.x), -dart.notNull(this.y), -dart.notNull(this.z), -dart.notNull(this.w));
    }
    ['-'](other) {
      if (other == null) dart.nullFailed(I[71], 1189, 34, "other");
      let _x = dart.notNull(this.x) - dart.notNull(other.x);
      let _y = dart.notNull(this.y) - dart.notNull(other.y);
      let _z = dart.notNull(this.z) - dart.notNull(other.z);
      let _w = dart.notNull(this.w) - dart.notNull(other.w);
      return new _native_typed_data.NativeFloat32x4._doubles(_x, _y, _z, _w);
    }
    ['*'](other) {
      if (other == null) dart.nullFailed(I[71], 1198, 34, "other");
      let _x = dart.notNull(this.x) * dart.notNull(other.x);
      let _y = dart.notNull(this.y) * dart.notNull(other.y);
      let _z = dart.notNull(this.z) * dart.notNull(other.z);
      let _w = dart.notNull(this.w) * dart.notNull(other.w);
      return new _native_typed_data.NativeFloat32x4._doubles(_x, _y, _z, _w);
    }
    ['/'](other) {
      if (other == null) dart.nullFailed(I[71], 1207, 34, "other");
      let _x = dart.notNull(this.x) / dart.notNull(other.x);
      let _y = dart.notNull(this.y) / dart.notNull(other.y);
      let _z = dart.notNull(this.z) / dart.notNull(other.z);
      let _w = dart.notNull(this.w) / dart.notNull(other.w);
      return new _native_typed_data.NativeFloat32x4._doubles(_x, _y, _z, _w);
    }
    lessThan(other) {
      if (other == null) dart.nullFailed(I[71], 1216, 30, "other");
      let _cx = dart.notNull(this.x) < dart.notNull(other.x);
      let _cy = dart.notNull(this.y) < dart.notNull(other.y);
      let _cz = dart.notNull(this.z) < dart.notNull(other.z);
      let _cw = dart.notNull(this.w) < dart.notNull(other.w);
      return new _native_typed_data.NativeInt32x4._truncated(_cx ? -1 : 0, _cy ? -1 : 0, _cz ? -1 : 0, _cw ? -1 : 0);
    }
    lessThanOrEqual(other) {
      if (other == null) dart.nullFailed(I[71], 1226, 37, "other");
      let _cx = dart.notNull(this.x) <= dart.notNull(other.x);
      let _cy = dart.notNull(this.y) <= dart.notNull(other.y);
      let _cz = dart.notNull(this.z) <= dart.notNull(other.z);
      let _cw = dart.notNull(this.w) <= dart.notNull(other.w);
      return new _native_typed_data.NativeInt32x4._truncated(_cx ? -1 : 0, _cy ? -1 : 0, _cz ? -1 : 0, _cw ? -1 : 0);
    }
    greaterThan(other) {
      if (other == null) dart.nullFailed(I[71], 1236, 33, "other");
      let _cx = dart.notNull(this.x) > dart.notNull(other.x);
      let _cy = dart.notNull(this.y) > dart.notNull(other.y);
      let _cz = dart.notNull(this.z) > dart.notNull(other.z);
      let _cw = dart.notNull(this.w) > dart.notNull(other.w);
      return new _native_typed_data.NativeInt32x4._truncated(_cx ? -1 : 0, _cy ? -1 : 0, _cz ? -1 : 0, _cw ? -1 : 0);
    }
    greaterThanOrEqual(other) {
      if (other == null) dart.nullFailed(I[71], 1246, 40, "other");
      let _cx = dart.notNull(this.x) >= dart.notNull(other.x);
      let _cy = dart.notNull(this.y) >= dart.notNull(other.y);
      let _cz = dart.notNull(this.z) >= dart.notNull(other.z);
      let _cw = dart.notNull(this.w) >= dart.notNull(other.w);
      return new _native_typed_data.NativeInt32x4._truncated(_cx ? -1 : 0, _cy ? -1 : 0, _cz ? -1 : 0, _cw ? -1 : 0);
    }
    equal(other) {
      if (other == null) dart.nullFailed(I[71], 1256, 27, "other");
      let _cx = this.x == other.x;
      let _cy = this.y == other.y;
      let _cz = this.z == other.z;
      let _cw = this.w == other.w;
      return new _native_typed_data.NativeInt32x4._truncated(_cx ? -1 : 0, _cy ? -1 : 0, _cz ? -1 : 0, _cw ? -1 : 0);
    }
    notEqual(other) {
      if (other == null) dart.nullFailed(I[71], 1266, 30, "other");
      let _cx = this.x != other.x;
      let _cy = this.y != other.y;
      let _cz = this.z != other.z;
      let _cw = this.w != other.w;
      return new _native_typed_data.NativeInt32x4._truncated(_cx ? -1 : 0, _cy ? -1 : 0, _cz ? -1 : 0, _cw ? -1 : 0);
    }
    scale(s) {
      if (s == null) dart.nullFailed(I[71], 1276, 26, "s");
      let _x = dart.notNull(s) * dart.notNull(this.x);
      let _y = dart.notNull(s) * dart.notNull(this.y);
      let _z = dart.notNull(s) * dart.notNull(this.z);
      let _w = dart.notNull(s) * dart.notNull(this.w);
      return new _native_typed_data.NativeFloat32x4._doubles(_x, _y, _z, _w);
    }
    abs() {
      let _x = this.x[$abs]();
      let _y = this.y[$abs]();
      let _z = this.z[$abs]();
      let _w = this.w[$abs]();
      return new _native_typed_data.NativeFloat32x4._truncated(_x, _y, _z, _w);
    }
    clamp(lowerLimit, upperLimit) {
      if (lowerLimit == null) dart.nullFailed(I[71], 1294, 29, "lowerLimit");
      if (upperLimit == null) dart.nullFailed(I[71], 1294, 51, "upperLimit");
      let _lx = lowerLimit.x;
      let _ly = lowerLimit.y;
      let _lz = lowerLimit.z;
      let _lw = lowerLimit.w;
      let _ux = upperLimit.x;
      let _uy = upperLimit.y;
      let _uz = upperLimit.z;
      let _uw = upperLimit.w;
      let _x = this.x;
      let _y = this.y;
      let _z = this.z;
      let _w = this.w;
      _x = dart.notNull(_x) > dart.notNull(_ux) ? _ux : _x;
      _y = dart.notNull(_y) > dart.notNull(_uy) ? _uy : _y;
      _z = dart.notNull(_z) > dart.notNull(_uz) ? _uz : _z;
      _w = dart.notNull(_w) > dart.notNull(_uw) ? _uw : _w;
      _x = dart.notNull(_x) < dart.notNull(_lx) ? _lx : _x;
      _y = dart.notNull(_y) < dart.notNull(_ly) ? _ly : _y;
      _z = dart.notNull(_z) < dart.notNull(_lz) ? _lz : _z;
      _w = dart.notNull(_w) < dart.notNull(_lw) ? _lw : _w;
      return new _native_typed_data.NativeFloat32x4._truncated(_x, _y, _z, _w);
    }
    get signMask() {
      let view = _native_typed_data.NativeFloat32x4._uint32view;
      let mx = null;
      let my = null;
      let mz = null;
      let mw = null;
      _native_typed_data.NativeFloat32x4._list[$_set](0, this.x);
      _native_typed_data.NativeFloat32x4._list[$_set](1, this.y);
      _native_typed_data.NativeFloat32x4._list[$_set](2, this.z);
      _native_typed_data.NativeFloat32x4._list[$_set](3, this.w);
      mx = (dart.notNull(view[$_get](0)) & 2147483648) >>> 31;
      my = (dart.notNull(view[$_get](1)) & 2147483648) >>> 30;
      mz = (dart.notNull(view[$_get](2)) & 2147483648) >>> 29;
      mw = (dart.notNull(view[$_get](3)) & 2147483648) >>> 28;
      return (dart.notNull(mx) | dart.notNull(my) | dart.notNull(mz) | dart.notNull(mw)) >>> 0;
    }
    shuffle(mask) {
      if (mask == null) dart.nullFailed(I[71], 1336, 25, "mask");
      if (dart.notNull(mask) < 0 || dart.notNull(mask) > 255) {
        dart.throw(new core.RangeError.range(mask, 0, 255, "mask"));
      }
      _native_typed_data.NativeFloat32x4._list[$_set](0, this.x);
      _native_typed_data.NativeFloat32x4._list[$_set](1, this.y);
      _native_typed_data.NativeFloat32x4._list[$_set](2, this.z);
      _native_typed_data.NativeFloat32x4._list[$_set](3, this.w);
      let _x = _native_typed_data.NativeFloat32x4._list[$_get](dart.notNull(mask) & 3);
      let _y = _native_typed_data.NativeFloat32x4._list[$_get](dart.notNull(mask) >> 2 & 3);
      let _z = _native_typed_data.NativeFloat32x4._list[$_get](dart.notNull(mask) >> 4 & 3);
      let _w = _native_typed_data.NativeFloat32x4._list[$_get](dart.notNull(mask) >> 6 & 3);
      return new _native_typed_data.NativeFloat32x4._truncated(_x, _y, _z, _w);
    }
    shuffleMix(other, mask) {
      if (other == null) dart.nullFailed(I[71], 1355, 34, "other");
      if (mask == null) dart.nullFailed(I[71], 1355, 45, "mask");
      if (dart.notNull(mask) < 0 || dart.notNull(mask) > 255) {
        dart.throw(new core.RangeError.range(mask, 0, 255, "mask"));
      }
      _native_typed_data.NativeFloat32x4._list[$_set](0, this.x);
      _native_typed_data.NativeFloat32x4._list[$_set](1, this.y);
      _native_typed_data.NativeFloat32x4._list[$_set](2, this.z);
      _native_typed_data.NativeFloat32x4._list[$_set](3, this.w);
      let _x = _native_typed_data.NativeFloat32x4._list[$_get](dart.notNull(mask) & 3);
      let _y = _native_typed_data.NativeFloat32x4._list[$_get](dart.notNull(mask) >> 2 & 3);
      _native_typed_data.NativeFloat32x4._list[$_set](0, other.x);
      _native_typed_data.NativeFloat32x4._list[$_set](1, other.y);
      _native_typed_data.NativeFloat32x4._list[$_set](2, other.z);
      _native_typed_data.NativeFloat32x4._list[$_set](3, other.w);
      let _z = _native_typed_data.NativeFloat32x4._list[$_get](dart.notNull(mask) >> 4 & 3);
      let _w = _native_typed_data.NativeFloat32x4._list[$_get](dart.notNull(mask) >> 6 & 3);
      return new _native_typed_data.NativeFloat32x4._truncated(_x, _y, _z, _w);
    }
    withX(newX) {
      if (newX == null) dart.nullFailed(I[71], 1376, 26, "newX");
      core.ArgumentError.checkNotNull(T$.double(), newX);
      return new _native_typed_data.NativeFloat32x4._truncated(_native_typed_data.NativeFloat32x4._truncate(newX), this.y, this.z, this.w);
    }
    withY(newY) {
      if (newY == null) dart.nullFailed(I[71], 1382, 26, "newY");
      core.ArgumentError.checkNotNull(T$.double(), newY);
      return new _native_typed_data.NativeFloat32x4._truncated(this.x, _native_typed_data.NativeFloat32x4._truncate(newY), this.z, this.w);
    }
    withZ(newZ) {
      if (newZ == null) dart.nullFailed(I[71], 1388, 26, "newZ");
      core.ArgumentError.checkNotNull(T$.double(), newZ);
      return new _native_typed_data.NativeFloat32x4._truncated(this.x, this.y, _native_typed_data.NativeFloat32x4._truncate(newZ), this.w);
    }
    withW(newW) {
      if (newW == null) dart.nullFailed(I[71], 1394, 26, "newW");
      core.ArgumentError.checkNotNull(T$.double(), newW);
      return new _native_typed_data.NativeFloat32x4._truncated(this.x, this.y, this.z, _native_typed_data.NativeFloat32x4._truncate(newW));
    }
    min(other) {
      if (other == null) dart.nullFailed(I[71], 1400, 27, "other");
      let _x = dart.notNull(this.x) < dart.notNull(other.x) ? this.x : other.x;
      let _y = dart.notNull(this.y) < dart.notNull(other.y) ? this.y : other.y;
      let _z = dart.notNull(this.z) < dart.notNull(other.z) ? this.z : other.z;
      let _w = dart.notNull(this.w) < dart.notNull(other.w) ? this.w : other.w;
      return new _native_typed_data.NativeFloat32x4._truncated(_x, _y, _z, _w);
    }
    max(other) {
      if (other == null) dart.nullFailed(I[71], 1409, 27, "other");
      let _x = dart.notNull(this.x) > dart.notNull(other.x) ? this.x : other.x;
      let _y = dart.notNull(this.y) > dart.notNull(other.y) ? this.y : other.y;
      let _z = dart.notNull(this.z) > dart.notNull(other.z) ? this.z : other.z;
      let _w = dart.notNull(this.w) > dart.notNull(other.w) ? this.w : other.w;
      return new _native_typed_data.NativeFloat32x4._truncated(_x, _y, _z, _w);
    }
    sqrt() {
      let _x = math.sqrt(this.x);
      let _y = math.sqrt(this.y);
      let _z = math.sqrt(this.z);
      let _w = math.sqrt(this.w);
      return new _native_typed_data.NativeFloat32x4._doubles(_x, _y, _z, _w);
    }
    reciprocal() {
      let _x = 1.0 / dart.notNull(this.x);
      let _y = 1.0 / dart.notNull(this.y);
      let _z = 1.0 / dart.notNull(this.z);
      let _w = 1.0 / dart.notNull(this.w);
      return new _native_typed_data.NativeFloat32x4._doubles(_x, _y, _z, _w);
    }
    reciprocalSqrt() {
      let _x = math.sqrt(1.0 / dart.notNull(this.x));
      let _y = math.sqrt(1.0 / dart.notNull(this.y));
      let _z = math.sqrt(1.0 / dart.notNull(this.z));
      let _w = math.sqrt(1.0 / dart.notNull(this.w));
      return new _native_typed_data.NativeFloat32x4._doubles(_x, _y, _z, _w);
    }
  };
  (_native_typed_data.NativeFloat32x4.new = function(x, y, z, w) {
    if (x == null) dart.nullFailed(I[71], 1126, 26, "x");
    if (y == null) dart.nullFailed(I[71], 1126, 36, "y");
    if (z == null) dart.nullFailed(I[71], 1126, 46, "z");
    if (w == null) dart.nullFailed(I[71], 1126, 56, "w");
    this[x$] = _native_typed_data.NativeFloat32x4._truncate(x);
    this[y$] = _native_typed_data.NativeFloat32x4._truncate(y);
    this[z$] = _native_typed_data.NativeFloat32x4._truncate(z);
    this[w$] = _native_typed_data.NativeFloat32x4._truncate(w);
    if (!(typeof x == 'number')) dart.throw(new core.ArgumentError.new(x));
    if (!(typeof y == 'number')) dart.throw(new core.ArgumentError.new(y));
    if (!(typeof z == 'number')) dart.throw(new core.ArgumentError.new(z));
    if (!(typeof w == 'number')) dart.throw(new core.ArgumentError.new(w));
  }).prototype = _native_typed_data.NativeFloat32x4.prototype;
  (_native_typed_data.NativeFloat32x4.splat = function(v) {
    if (v == null) dart.nullFailed(I[71], 1139, 32, "v");
    _native_typed_data.NativeFloat32x4.new.call(this, v, v, v, v);
  }).prototype = _native_typed_data.NativeFloat32x4.prototype;
  (_native_typed_data.NativeFloat32x4.zero = function() {
    _native_typed_data.NativeFloat32x4._truncated.call(this, 0.0, 0.0, 0.0, 0.0);
  }).prototype = _native_typed_data.NativeFloat32x4.prototype;
  (_native_typed_data.NativeFloat32x4.fromFloat64x2 = function(v) {
    if (v == null) dart.nullFailed(I[71], 1151, 43, "v");
    _native_typed_data.NativeFloat32x4._truncated.call(this, _native_typed_data.NativeFloat32x4._truncate(v.x), _native_typed_data.NativeFloat32x4._truncate(v.y), 0.0, 0.0);
  }).prototype = _native_typed_data.NativeFloat32x4.prototype;
  (_native_typed_data.NativeFloat32x4._doubles = function(x, y, z, w) {
    if (x == null) dart.nullFailed(I[71], 1157, 35, "x");
    if (y == null) dart.nullFailed(I[71], 1157, 45, "y");
    if (z == null) dart.nullFailed(I[71], 1157, 55, "z");
    if (w == null) dart.nullFailed(I[71], 1157, 65, "w");
    this[x$] = _native_typed_data.NativeFloat32x4._truncate(x);
    this[y$] = _native_typed_data.NativeFloat32x4._truncate(y);
    this[z$] = _native_typed_data.NativeFloat32x4._truncate(z);
    this[w$] = _native_typed_data.NativeFloat32x4._truncate(w);
    ;
  }).prototype = _native_typed_data.NativeFloat32x4.prototype;
  (_native_typed_data.NativeFloat32x4._truncated = function(x, y, z, w) {
    if (x == null) dart.nullFailed(I[71], 1168, 35, "x");
    if (y == null) dart.nullFailed(I[71], 1168, 43, "y");
    if (z == null) dart.nullFailed(I[71], 1168, 51, "z");
    if (w == null) dart.nullFailed(I[71], 1168, 59, "w");
    this[x$] = x;
    this[y$] = y;
    this[z$] = z;
    this[w$] = w;
    ;
  }).prototype = _native_typed_data.NativeFloat32x4.prototype;
  dart.addRtiResources(_native_typed_data.NativeFloat32x4, ["_native_typed_data|NativeFloat32x4", "typed_data|Float32x4"]);
  dart.setMethodSignature(_native_typed_data.NativeFloat32x4, () => dart.global.Object.setPrototypeOf({
    '+': T$0.Float32x4ToFloat32x4(),
    _negate: T$0.VoidToFloat32x4(),
    '-': T$0.Float32x4ToFloat32x4(),
    '*': T$0.Float32x4ToFloat32x4(),
    '/': T$0.Float32x4ToFloat32x4(),
    lessThan: T$0.Float32x4ToInt32x4(),
    lessThanOrEqual: T$0.Float32x4ToInt32x4(),
    greaterThan: T$0.Float32x4ToInt32x4(),
    greaterThanOrEqual: T$0.Float32x4ToInt32x4(),
    equal: T$0.Float32x4ToInt32x4(),
    notEqual: T$0.Float32x4ToInt32x4(),
    scale: T$0.doubleToFloat32x4(),
    abs: T$0.VoidToFloat32x4(),
    clamp: T$0.Float32x4AndFloat32x4ToFloat32x4(),
    shuffle: T$0.intToFloat32x4(),
    shuffleMix: T$0.Float32x4AndintToFloat32x4(),
    withX: T$0.doubleToFloat32x4(),
    withY: T$0.doubleToFloat32x4(),
    withZ: T$0.doubleToFloat32x4(),
    withW: T$0.doubleToFloat32x4(),
    min: T$0.Float32x4ToFloat32x4(),
    max: T$0.Float32x4ToFloat32x4(),
    sqrt: T$0.VoidToFloat32x4(),
    reciprocal: T$0.VoidToFloat32x4(),
    reciprocalSqrt: T$0.VoidToFloat32x4()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32x4))));
  dart.setStaticMethodSignature(_native_typed_data.NativeFloat32x4, () => ['_truncate', 'fromInt32x4Bits']);
  dart.setGetterSignature(_native_typed_data.NativeFloat32x4, () => dart.global.Object.setPrototypeOf({signMask: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32x4))));
  dart.setLibraryUri(_native_typed_data.NativeFloat32x4, I[72]);
  dart.setFieldSignature(_native_typed_data.NativeFloat32x4, () => dart.global.Object.setPrototypeOf({
    x: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    z: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    w: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat32x4))));
  dart.setStaticFieldSignature(_native_typed_data.NativeFloat32x4, () => ['_list', '_uint32view']);
  dart.defineExtensionMethods(_native_typed_data.NativeFloat32x4, ['toString']);
  dart.defineLazy(_native_typed_data.NativeFloat32x4, {
    /*_native_typed_data.NativeFloat32x4._list*/get _list() {
      return _native_typed_data.NativeFloat32List.new(4);
    },
    /*_native_typed_data.NativeFloat32x4._uint32view*/get _uint32view() {
      return _native_typed_data.NativeFloat32x4._list.buffer[$asUint32List]();
    }
  }, false);
  var x$0 = dart.privateName(_native_typed_data, "NativeInt32x4.x");
  var y$0 = dart.privateName(_native_typed_data, "NativeInt32x4.y");
  var z$0 = dart.privateName(_native_typed_data, "NativeInt32x4.z");
  var w$0 = dart.privateName(_native_typed_data, "NativeInt32x4.w");
  _native_typed_data.NativeInt32x4 = class NativeInt32x4 extends core.Object {
    get x() {
      return this[x$0];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$0];
    }
    set y(value) {
      super.y = value;
    }
    get z() {
      return this[z$0];
    }
    set z(value) {
      super.z = value;
    }
    get w() {
      return this[w$0];
    }
    set w(value) {
      super.w = value;
    }
    static _truncate(x) {
      _native_typed_data.NativeInt32x4._list[0] = x;
      return _native_typed_data.NativeInt32x4._list[0];
    }
    static ['_#new#tearOff'](x, y, z, w) {
      if (x == null) dart.nullFailed(I[71], 1463, 21, "x");
      if (y == null) dart.nullFailed(I[71], 1463, 28, "y");
      if (z == null) dart.nullFailed(I[71], 1463, 35, "z");
      if (w == null) dart.nullFailed(I[71], 1463, 42, "w");
      return new _native_typed_data.NativeInt32x4.new(x, y, z, w);
    }
    static ['_#bool#tearOff'](x, y, z, w) {
      if (x == null) dart.nullFailed(I[71], 1474, 27, "x");
      if (y == null) dart.nullFailed(I[71], 1474, 35, "y");
      if (z == null) dart.nullFailed(I[71], 1474, 43, "z");
      if (w == null) dart.nullFailed(I[71], 1474, 51, "w");
      return new _native_typed_data.NativeInt32x4.bool(x, y, z, w);
    }
    static fromFloat32x4Bits(f) {
      if (f == null) dart.nullFailed(I[71], 1481, 53, "f");
      let floatList = _native_typed_data.NativeFloat32x4._list;
      floatList[$_set](0, f.x);
      floatList[$_set](1, f.y);
      floatList[$_set](2, f.z);
      floatList[$_set](3, f.w);
      let view = floatList.buffer[$asInt32List]();
      return new _native_typed_data.NativeInt32x4._truncated(view[$_get](0), view[$_get](1), view[$_get](2), view[$_get](3));
    }
    static ['_#fromFloat32x4Bits#tearOff'](f) {
      if (f == null) dart.nullFailed(I[71], 1481, 53, "f");
      return _native_typed_data.NativeInt32x4.fromFloat32x4Bits(f);
    }
    static ['_#_truncated#tearOff'](x, y, z, w) {
      if (x == null) dart.nullFailed(I[71], 1491, 33, "x");
      if (y == null) dart.nullFailed(I[71], 1491, 41, "y");
      if (z == null) dart.nullFailed(I[71], 1491, 49, "z");
      if (w == null) dart.nullFailed(I[71], 1491, 57, "w");
      return new _native_typed_data.NativeInt32x4._truncated(x, y, z, w);
    }
    toString() {
      return "[" + dart.str(this.x) + ", " + dart.str(this.y) + ", " + dart.str(this.z) + ", " + dart.str(this.w) + "]";
    }
    ['|'](other) {
      if (other == null) dart.nullFailed(I[71], 1496, 30, "other");
      return new _native_typed_data.NativeInt32x4._truncated(this.x | other.x, this.y | other.y, this.z | other.z, this.w | other.w);
    }
    ['&'](other) {
      if (other == null) dart.nullFailed(I[71], 1507, 30, "other");
      return new _native_typed_data.NativeInt32x4._truncated(this.x & other.x, this.y & other.y, this.z & other.z, this.w & other.w);
    }
    ['^'](other) {
      if (other == null) dart.nullFailed(I[71], 1518, 30, "other");
      return new _native_typed_data.NativeInt32x4._truncated(this.x ^ other.x, this.y ^ other.y, this.z ^ other.z, this.w ^ other.w);
    }
    ['+'](other) {
      if (other == null) dart.nullFailed(I[71], 1528, 30, "other");
      return new _native_typed_data.NativeInt32x4._truncated(this.x + other.x | 0, this.y + other.y | 0, this.z + other.z | 0, this.w + other.w | 0);
    }
    ['-'](other) {
      if (other == null) dart.nullFailed(I[71], 1537, 30, "other");
      return new _native_typed_data.NativeInt32x4._truncated(this.x - other.x | 0, this.y - other.y | 0, this.z - other.z | 0, this.w - other.w | 0);
    }
    _negate() {
      return new _native_typed_data.NativeInt32x4._truncated(-this.x | 0, -this.y | 0, -this.z | 0, -this.w | 0);
    }
    get signMask() {
      let mx = (dart.notNull(this.x) & 2147483648) >>> 31;
      let my = (dart.notNull(this.y) & 2147483648) >>> 31;
      let mz = (dart.notNull(this.z) & 2147483648) >>> 31;
      let mw = (dart.notNull(this.w) & 2147483648) >>> 31;
      return (mx | my << 1 >>> 0 | mz << 2 >>> 0 | mw << 3 >>> 0) >>> 0;
    }
    shuffle(mask) {
      if (mask == null) dart.nullFailed(I[71], 1565, 23, "mask");
      if (dart.notNull(mask) < 0 || dart.notNull(mask) > 255) {
        dart.throw(new core.RangeError.range(mask, 0, 255, "mask"));
      }
      _native_typed_data.NativeInt32x4._list[$_set](0, this.x);
      _native_typed_data.NativeInt32x4._list[$_set](1, this.y);
      _native_typed_data.NativeInt32x4._list[$_set](2, this.z);
      _native_typed_data.NativeInt32x4._list[$_set](3, this.w);
      let _x = _native_typed_data.NativeInt32x4._list[$_get](dart.notNull(mask) & 3);
      let _y = _native_typed_data.NativeInt32x4._list[$_get](dart.notNull(mask) >> 2 & 3);
      let _z = _native_typed_data.NativeInt32x4._list[$_get](dart.notNull(mask) >> 4 & 3);
      let _w = _native_typed_data.NativeInt32x4._list[$_get](dart.notNull(mask) >> 6 & 3);
      return new _native_typed_data.NativeInt32x4._truncated(_x, _y, _z, _w);
    }
    shuffleMix(other, mask) {
      if (other == null) dart.nullFailed(I[71], 1583, 30, "other");
      if (mask == null) dart.nullFailed(I[71], 1583, 41, "mask");
      if (dart.notNull(mask) < 0 || dart.notNull(mask) > 255) {
        dart.throw(new core.RangeError.range(mask, 0, 255, "mask"));
      }
      _native_typed_data.NativeInt32x4._list[$_set](0, this.x);
      _native_typed_data.NativeInt32x4._list[$_set](1, this.y);
      _native_typed_data.NativeInt32x4._list[$_set](2, this.z);
      _native_typed_data.NativeInt32x4._list[$_set](3, this.w);
      let _x = _native_typed_data.NativeInt32x4._list[$_get](dart.notNull(mask) & 3);
      let _y = _native_typed_data.NativeInt32x4._list[$_get](dart.notNull(mask) >> 2 & 3);
      _native_typed_data.NativeInt32x4._list[$_set](0, other.x);
      _native_typed_data.NativeInt32x4._list[$_set](1, other.y);
      _native_typed_data.NativeInt32x4._list[$_set](2, other.z);
      _native_typed_data.NativeInt32x4._list[$_set](3, other.w);
      let _z = _native_typed_data.NativeInt32x4._list[$_get](dart.notNull(mask) >> 4 & 3);
      let _w = _native_typed_data.NativeInt32x4._list[$_get](dart.notNull(mask) >> 6 & 3);
      return new _native_typed_data.NativeInt32x4._truncated(_x, _y, _z, _w);
    }
    withX(x) {
      if (x == null) dart.nullFailed(I[71], 1604, 21, "x");
      core.ArgumentError.checkNotNull(T$.int(), x);
      let _x = _native_typed_data.NativeInt32x4._truncate(x);
      return new _native_typed_data.NativeInt32x4._truncated(_x, this.y, this.z, this.w);
    }
    withY(y) {
      if (y == null) dart.nullFailed(I[71], 1611, 21, "y");
      core.ArgumentError.checkNotNull(T$.int(), y);
      let _y = _native_typed_data.NativeInt32x4._truncate(y);
      return new _native_typed_data.NativeInt32x4._truncated(this.x, _y, this.z, this.w);
    }
    withZ(z) {
      if (z == null) dart.nullFailed(I[71], 1618, 21, "z");
      core.ArgumentError.checkNotNull(T$.int(), z);
      let _z = _native_typed_data.NativeInt32x4._truncate(z);
      return new _native_typed_data.NativeInt32x4._truncated(this.x, this.y, _z, this.w);
    }
    withW(w) {
      if (w == null) dart.nullFailed(I[71], 1625, 21, "w");
      core.ArgumentError.checkNotNull(T$.int(), w);
      let _w = _native_typed_data.NativeInt32x4._truncate(w);
      return new _native_typed_data.NativeInt32x4._truncated(this.x, this.y, this.z, _w);
    }
    get flagX() {
      return this.x !== 0;
    }
    get flagY() {
      return this.y !== 0;
    }
    get flagZ() {
      return this.z !== 0;
    }
    get flagW() {
      return this.w !== 0;
    }
    withFlagX(flagX) {
      if (flagX == null) dart.nullFailed(I[71], 1644, 26, "flagX");
      let _x = dart.test(flagX) ? -1 : 0;
      return new _native_typed_data.NativeInt32x4._truncated(_x, this.y, this.z, this.w);
    }
    withFlagY(flagY) {
      if (flagY == null) dart.nullFailed(I[71], 1650, 26, "flagY");
      let _y = dart.test(flagY) ? -1 : 0;
      return new _native_typed_data.NativeInt32x4._truncated(this.x, _y, this.z, this.w);
    }
    withFlagZ(flagZ) {
      if (flagZ == null) dart.nullFailed(I[71], 1656, 26, "flagZ");
      let _z = dart.test(flagZ) ? -1 : 0;
      return new _native_typed_data.NativeInt32x4._truncated(this.x, this.y, _z, this.w);
    }
    withFlagW(flagW) {
      if (flagW == null) dart.nullFailed(I[71], 1662, 26, "flagW");
      let _w = dart.test(flagW) ? -1 : 0;
      return new _native_typed_data.NativeInt32x4._truncated(this.x, this.y, this.z, _w);
    }
    select(trueValue, falseValue) {
      if (trueValue == null) dart.nullFailed(I[71], 1670, 30, "trueValue");
      if (falseValue == null) dart.nullFailed(I[71], 1670, 51, "falseValue");
      let floatList = _native_typed_data.NativeFloat32x4._list;
      let intView = _native_typed_data.NativeFloat32x4._uint32view;
      floatList[$_set](0, trueValue.x);
      floatList[$_set](1, trueValue.y);
      floatList[$_set](2, trueValue.z);
      floatList[$_set](3, trueValue.w);
      let stx = intView[$_get](0);
      let sty = intView[$_get](1);
      let stz = intView[$_get](2);
      let stw = intView[$_get](3);
      floatList[$_set](0, falseValue.x);
      floatList[$_set](1, falseValue.y);
      floatList[$_set](2, falseValue.z);
      floatList[$_set](3, falseValue.w);
      let sfx = intView[$_get](0);
      let sfy = intView[$_get](1);
      let sfz = intView[$_get](2);
      let sfw = intView[$_get](3);
      let _x = (dart.notNull(this.x) & dart.notNull(stx) | (~dart.notNull(this.x) & dart.notNull(sfx)) >>> 0) >>> 0;
      let _y = (dart.notNull(this.y) & dart.notNull(sty) | (~dart.notNull(this.y) & dart.notNull(sfy)) >>> 0) >>> 0;
      let _z = (dart.notNull(this.z) & dart.notNull(stz) | (~dart.notNull(this.z) & dart.notNull(sfz)) >>> 0) >>> 0;
      let _w = (dart.notNull(this.w) & dart.notNull(stw) | (~dart.notNull(this.w) & dart.notNull(sfw)) >>> 0) >>> 0;
      intView[$_set](0, _x);
      intView[$_set](1, _y);
      intView[$_set](2, _z);
      intView[$_set](3, _w);
      return new _native_typed_data.NativeFloat32x4._truncated(floatList[$_get](0), floatList[$_get](1), floatList[$_get](2), floatList[$_get](3));
    }
  };
  (_native_typed_data.NativeInt32x4.new = function(x, y, z, w) {
    if (x == null) dart.nullFailed(I[71], 1463, 21, "x");
    if (y == null) dart.nullFailed(I[71], 1463, 28, "y");
    if (z == null) dart.nullFailed(I[71], 1463, 35, "z");
    if (w == null) dart.nullFailed(I[71], 1463, 42, "w");
    this[x$0] = _native_typed_data.NativeInt32x4._truncate(x);
    this[y$0] = _native_typed_data.NativeInt32x4._truncate(y);
    this[z$0] = _native_typed_data.NativeInt32x4._truncate(z);
    this[w$0] = _native_typed_data.NativeInt32x4._truncate(w);
    if (x != this.x && !T$.int()[_is](x)) dart.throw(new core.ArgumentError.new(x));
    if (y != this.y && !T$.int()[_is](y)) dart.throw(new core.ArgumentError.new(y));
    if (z != this.z && !T$.int()[_is](z)) dart.throw(new core.ArgumentError.new(z));
    if (w != this.w && !T$.int()[_is](w)) dart.throw(new core.ArgumentError.new(w));
  }).prototype = _native_typed_data.NativeInt32x4.prototype;
  (_native_typed_data.NativeInt32x4.bool = function(x, y, z, w) {
    if (x == null) dart.nullFailed(I[71], 1474, 27, "x");
    if (y == null) dart.nullFailed(I[71], 1474, 35, "y");
    if (z == null) dart.nullFailed(I[71], 1474, 43, "z");
    if (w == null) dart.nullFailed(I[71], 1474, 51, "w");
    this[x$0] = dart.test(x) ? -1 : 0;
    this[y$0] = dart.test(y) ? -1 : 0;
    this[z$0] = dart.test(z) ? -1 : 0;
    this[w$0] = dart.test(w) ? -1 : 0;
    ;
  }).prototype = _native_typed_data.NativeInt32x4.prototype;
  (_native_typed_data.NativeInt32x4._truncated = function(x, y, z, w) {
    if (x == null) dart.nullFailed(I[71], 1491, 33, "x");
    if (y == null) dart.nullFailed(I[71], 1491, 41, "y");
    if (z == null) dart.nullFailed(I[71], 1491, 49, "z");
    if (w == null) dart.nullFailed(I[71], 1491, 57, "w");
    this[x$0] = x;
    this[y$0] = y;
    this[z$0] = z;
    this[w$0] = w;
    ;
  }).prototype = _native_typed_data.NativeInt32x4.prototype;
  dart.addRtiResources(_native_typed_data.NativeInt32x4, ["_native_typed_data|NativeInt32x4", "typed_data|Int32x4"]);
  dart.setMethodSignature(_native_typed_data.NativeInt32x4, () => dart.global.Object.setPrototypeOf({
    '|': T$0.Int32x4ToInt32x4(),
    '&': T$0.Int32x4ToInt32x4(),
    '^': T$0.Int32x4ToInt32x4(),
    '+': T$0.Int32x4ToInt32x4(),
    '-': T$0.Int32x4ToInt32x4(),
    _negate: T$0.VoidToInt32x4(),
    shuffle: T$0.intToInt32x4(),
    shuffleMix: T$0.Int32x4AndintToInt32x4(),
    withX: T$0.intToInt32x4(),
    withY: T$0.intToInt32x4(),
    withZ: T$0.intToInt32x4(),
    withW: T$0.intToInt32x4(),
    withFlagX: T$0.boolToInt32x4(),
    withFlagY: T$0.boolToInt32x4(),
    withFlagZ: T$0.boolToInt32x4(),
    withFlagW: T$0.boolToInt32x4(),
    select: T$0.Float32x4AndFloat32x4ToFloat32x4()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32x4))));
  dart.setStaticMethodSignature(_native_typed_data.NativeInt32x4, () => ['_truncate', 'fromFloat32x4Bits']);
  dart.setGetterSignature(_native_typed_data.NativeInt32x4, () => dart.global.Object.setPrototypeOf({
    signMask: T$.int(),
    flagX: T$.bool(),
    flagY: T$.bool(),
    flagZ: T$.bool(),
    flagW: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32x4))));
  dart.setLibraryUri(_native_typed_data.NativeInt32x4, I[72]);
  dart.setFieldSignature(_native_typed_data.NativeInt32x4, () => dart.global.Object.setPrototypeOf({
    x: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    z: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    w: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data.NativeInt32x4))));
  dart.setStaticFieldSignature(_native_typed_data.NativeInt32x4, () => ['_list']);
  dart.defineExtensionMethods(_native_typed_data.NativeInt32x4, ['toString']);
  dart.defineLazy(_native_typed_data.NativeInt32x4, {
    /*_native_typed_data.NativeInt32x4._list*/get _list() {
      return _native_typed_data.NativeInt32List.new(4);
    }
  }, false);
  var x$1 = dart.privateName(_native_typed_data, "NativeFloat64x2.x");
  var y$1 = dart.privateName(_native_typed_data, "NativeFloat64x2.y");
  _native_typed_data.NativeFloat64x2 = class NativeFloat64x2 extends core.Object {
    get x() {
      return this[x$1];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$1];
    }
    set y(value) {
      super.y = value;
    }
    static ['_#new#tearOff'](x, y) {
      if (x == null) dart.nullFailed(I[71], 1711, 24, "x");
      if (y == null) dart.nullFailed(I[71], 1711, 32, "y");
      return new _native_typed_data.NativeFloat64x2.new(x, y);
    }
    static ['_#splat#tearOff'](v) {
      if (v == null) dart.nullFailed(I[71], 1716, 32, "v");
      return new _native_typed_data.NativeFloat64x2.splat(v);
    }
    static ['_#zero#tearOff']() {
      return new _native_typed_data.NativeFloat64x2.zero();
    }
    static ['_#fromFloat32x4#tearOff'](v) {
      if (v == null) dart.nullFailed(I[71], 1720, 43, "v");
      return new _native_typed_data.NativeFloat64x2.fromFloat32x4(v);
    }
    static ['_#_doubles#tearOff'](x, y) {
      if (x == null) dart.nullFailed(I[71], 1723, 33, "x");
      if (y == null) dart.nullFailed(I[71], 1723, 41, "y");
      return new _native_typed_data.NativeFloat64x2._doubles(x, y);
    }
    toString() {
      return "[" + dart.str(this.x) + ", " + dart.str(this.y) + "]";
    }
    ['+'](other) {
      if (other == null) dart.nullFailed(I[71], 1728, 34, "other");
      return new _native_typed_data.NativeFloat64x2._doubles(dart.notNull(this.x) + dart.notNull(other.x), dart.notNull(this.y) + dart.notNull(other.y));
    }
    _negate() {
      return new _native_typed_data.NativeFloat64x2._doubles(-dart.notNull(this.x), -dart.notNull(this.y));
    }
    ['-'](other) {
      if (other == null) dart.nullFailed(I[71], 1738, 34, "other");
      return new _native_typed_data.NativeFloat64x2._doubles(dart.notNull(this.x) - dart.notNull(other.x), dart.notNull(this.y) - dart.notNull(other.y));
    }
    ['*'](other) {
      if (other == null) dart.nullFailed(I[71], 1743, 34, "other");
      return new _native_typed_data.NativeFloat64x2._doubles(dart.notNull(this.x) * dart.notNull(other.x), dart.notNull(this.y) * dart.notNull(other.y));
    }
    ['/'](other) {
      if (other == null) dart.nullFailed(I[71], 1748, 34, "other");
      return new _native_typed_data.NativeFloat64x2._doubles(dart.notNull(this.x) / dart.notNull(other.x), dart.notNull(this.y) / dart.notNull(other.y));
    }
    scale(s) {
      if (s == null) dart.nullFailed(I[71], 1753, 26, "s");
      return new _native_typed_data.NativeFloat64x2._doubles(dart.notNull(this.x) * dart.notNull(s), dart.notNull(this.y) * dart.notNull(s));
    }
    abs() {
      return new _native_typed_data.NativeFloat64x2._doubles(this.x[$abs](), this.y[$abs]());
    }
    clamp(lowerLimit, upperLimit) {
      if (lowerLimit == null) dart.nullFailed(I[71], 1763, 29, "lowerLimit");
      if (upperLimit == null) dart.nullFailed(I[71], 1763, 51, "upperLimit");
      let _lx = lowerLimit.x;
      let _ly = lowerLimit.y;
      let _ux = upperLimit.x;
      let _uy = upperLimit.y;
      let _x = this.x;
      let _y = this.y;
      _x = dart.notNull(_x) > dart.notNull(_ux) ? _ux : _x;
      _y = dart.notNull(_y) > dart.notNull(_uy) ? _uy : _y;
      _x = dart.notNull(_x) < dart.notNull(_lx) ? _lx : _x;
      _y = dart.notNull(_y) < dart.notNull(_ly) ? _ly : _y;
      return new _native_typed_data.NativeFloat64x2._doubles(_x, _y);
    }
    get signMask() {
      let view = _native_typed_data.NativeFloat64x2._uint32View;
      _native_typed_data.NativeFloat64x2._list[$_set](0, this.x);
      _native_typed_data.NativeFloat64x2._list[$_set](1, this.y);
      let mx = (dart.notNull(view[$_get](1)) & 2147483648) >>> 31;
      let my = (dart.notNull(view[$_get](3)) & 2147483648) >>> 31;
      return (mx | my << 1 >>> 0) >>> 0;
    }
    withX(x) {
      if (x == null) dart.nullFailed(I[71], 1790, 26, "x");
      if (!(typeof x == 'number')) dart.throw(new core.ArgumentError.new(x));
      return new _native_typed_data.NativeFloat64x2._doubles(x, this.y);
    }
    withY(y) {
      if (y == null) dart.nullFailed(I[71], 1797, 26, "y");
      if (!(typeof y == 'number')) dart.throw(new core.ArgumentError.new(y));
      return new _native_typed_data.NativeFloat64x2._doubles(this.x, y);
    }
    min(other) {
      if (other == null) dart.nullFailed(I[71], 1803, 27, "other");
      return new _native_typed_data.NativeFloat64x2._doubles(dart.notNull(this.x) < dart.notNull(other.x) ? this.x : other.x, dart.notNull(this.y) < dart.notNull(other.y) ? this.y : other.y);
    }
    max(other) {
      if (other == null) dart.nullFailed(I[71], 1809, 27, "other");
      return new _native_typed_data.NativeFloat64x2._doubles(dart.notNull(this.x) > dart.notNull(other.x) ? this.x : other.x, dart.notNull(this.y) > dart.notNull(other.y) ? this.y : other.y);
    }
    sqrt() {
      return new _native_typed_data.NativeFloat64x2._doubles(math.sqrt(this.x), math.sqrt(this.y));
    }
  };
  (_native_typed_data.NativeFloat64x2.new = function(x, y) {
    if (x == null) dart.nullFailed(I[71], 1711, 24, "x");
    if (y == null) dart.nullFailed(I[71], 1711, 32, "y");
    this[x$1] = x;
    this[y$1] = y;
    if (!(typeof this.x == 'number')) dart.throw(new core.ArgumentError.new(this.x));
    if (!(typeof this.y == 'number')) dart.throw(new core.ArgumentError.new(this.y));
  }).prototype = _native_typed_data.NativeFloat64x2.prototype;
  (_native_typed_data.NativeFloat64x2.splat = function(v) {
    if (v == null) dart.nullFailed(I[71], 1716, 32, "v");
    _native_typed_data.NativeFloat64x2.new.call(this, v, v);
  }).prototype = _native_typed_data.NativeFloat64x2.prototype;
  (_native_typed_data.NativeFloat64x2.zero = function() {
    _native_typed_data.NativeFloat64x2.splat.call(this, 0.0);
  }).prototype = _native_typed_data.NativeFloat64x2.prototype;
  (_native_typed_data.NativeFloat64x2.fromFloat32x4 = function(v) {
    if (v == null) dart.nullFailed(I[71], 1720, 43, "v");
    _native_typed_data.NativeFloat64x2.new.call(this, v.x, v.y);
  }).prototype = _native_typed_data.NativeFloat64x2.prototype;
  (_native_typed_data.NativeFloat64x2._doubles = function(x, y) {
    if (x == null) dart.nullFailed(I[71], 1723, 33, "x");
    if (y == null) dart.nullFailed(I[71], 1723, 41, "y");
    this[x$1] = x;
    this[y$1] = y;
    ;
  }).prototype = _native_typed_data.NativeFloat64x2.prototype;
  dart.addRtiResources(_native_typed_data.NativeFloat64x2, ["_native_typed_data|NativeFloat64x2", "typed_data|Float64x2"]);
  dart.setMethodSignature(_native_typed_data.NativeFloat64x2, () => dart.global.Object.setPrototypeOf({
    '+': T$0.Float64x2ToFloat64x2(),
    _negate: T$0.VoidToFloat64x2(),
    '-': T$0.Float64x2ToFloat64x2(),
    '*': T$0.Float64x2ToFloat64x2(),
    '/': T$0.Float64x2ToFloat64x2(),
    scale: T$0.doubleToFloat64x2(),
    abs: T$0.VoidToFloat64x2(),
    clamp: T$0.Float64x2AndFloat64x2ToFloat64x2(),
    withX: T$0.doubleToFloat64x2(),
    withY: T$0.doubleToFloat64x2(),
    min: T$0.Float64x2ToFloat64x2(),
    max: T$0.Float64x2ToFloat64x2(),
    sqrt: T$0.VoidToFloat64x2()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64x2))));
  dart.setGetterSignature(_native_typed_data.NativeFloat64x2, () => dart.global.Object.setPrototypeOf({signMask: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64x2))));
  dart.setLibraryUri(_native_typed_data.NativeFloat64x2, I[72]);
  dart.setFieldSignature(_native_typed_data.NativeFloat64x2, () => dart.global.Object.setPrototypeOf({
    x: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data.NativeFloat64x2))));
  dart.setStaticFieldSignature(_native_typed_data.NativeFloat64x2, () => ['_list', '_uint32View']);
  dart.defineExtensionMethods(_native_typed_data.NativeFloat64x2, ['toString']);
  dart.defineLazy(_native_typed_data.NativeFloat64x2, {
    /*_native_typed_data.NativeFloat64x2._list*/get _list() {
      return _native_typed_data.NativeFloat64List.new(2);
    },
    set _list(value) {
      if (value == null) dart.nullFailed(I[71], 1708, 28, "_list");
    },
    /*_native_typed_data.NativeFloat64x2._uint32View*/get _uint32View() {
      return _native_typed_data.NativeFloat64x2._list.buffer[$asUint32List]();
    },
    set _uint32View(value) {
      if (value == null) dart.nullFailed(I[71], 1709, 21, "_uint32View");
    }
  }, false);
  var _data = dart.privateName(_native_typed_data, "_data");
  _native_typed_data._UnmodifiableByteBufferView = class _UnmodifiableByteBufferView extends core.Object {
    static ['_#new#tearOff'](data) {
      if (data == null) dart.nullFailed(I[71], 1857, 42, "data");
      return new _native_typed_data._UnmodifiableByteBufferView.new(data);
    }
    get lengthInBytes() {
      return this[_data][$lengthInBytes];
    }
    asUint8List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1861, 30, "offsetInBytes");
      return new _native_typed_data._UnmodifiableUint8ListView.new(this[_data][$asUint8List](offsetInBytes, length));
    }
    asInt8List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1864, 28, "offsetInBytes");
      return new _native_typed_data._UnmodifiableInt8ListView.new(this[_data][$asInt8List](offsetInBytes, length));
    }
    asUint8ClampedList(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1867, 44, "offsetInBytes");
      return new _native_typed_data._UnmodifiableUint8ClampedListView.new(this[_data][$asUint8ClampedList](offsetInBytes, length));
    }
    asUint16List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1871, 32, "offsetInBytes");
      return new _native_typed_data._UnmodifiableUint16ListView.new(this[_data][$asUint16List](offsetInBytes, length));
    }
    asInt16List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1874, 30, "offsetInBytes");
      return new _native_typed_data._UnmodifiableInt16ListView.new(this[_data][$asInt16List](offsetInBytes, length));
    }
    asUint32List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1877, 32, "offsetInBytes");
      return new _native_typed_data._UnmodifiableUint32ListView.new(this[_data][$asUint32List](offsetInBytes, length));
    }
    asInt32List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1880, 30, "offsetInBytes");
      return new _native_typed_data._UnmodifiableInt32ListView.new(this[_data][$asInt32List](offsetInBytes, length));
    }
    asUint64List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1883, 32, "offsetInBytes");
      return new _native_typed_data._UnmodifiableUint64ListView.new(this[_data][$asUint64List](offsetInBytes, length));
    }
    asInt64List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1886, 30, "offsetInBytes");
      return new _native_typed_data._UnmodifiableInt64ListView.new(this[_data][$asInt64List](offsetInBytes, length));
    }
    asInt32x4List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1889, 34, "offsetInBytes");
      return new _native_typed_data._UnmodifiableInt32x4ListView.new(this[_data][$asInt32x4List](offsetInBytes, length));
    }
    asFloat32List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1892, 34, "offsetInBytes");
      return new _native_typed_data._UnmodifiableFloat32ListView.new(this[_data][$asFloat32List](offsetInBytes, length));
    }
    asFloat64List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1895, 34, "offsetInBytes");
      return new _native_typed_data._UnmodifiableFloat64ListView.new(this[_data][$asFloat64List](offsetInBytes, length));
    }
    asFloat32x4List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1898, 38, "offsetInBytes");
      return new _native_typed_data._UnmodifiableFloat32x4ListView.new(this[_data][$asFloat32x4List](offsetInBytes, length));
    }
    asFloat64x2List(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1902, 38, "offsetInBytes");
      return new _native_typed_data._UnmodifiableFloat64x2ListView.new(this[_data][$asFloat64x2List](offsetInBytes, length));
    }
    asByteData(offsetInBytes = 0, length = null) {
      if (offsetInBytes == null) dart.nullFailed(I[71], 1906, 28, "offsetInBytes");
      return new _native_typed_data._UnmodifiableByteDataView.new(this[_data][$asByteData](offsetInBytes, length));
    }
  };
  (_native_typed_data._UnmodifiableByteBufferView.new = function(data) {
    if (data == null) dart.nullFailed(I[71], 1857, 42, "data");
    this[_data] = data;
    ;
  }).prototype = _native_typed_data._UnmodifiableByteBufferView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableByteBufferView, ["_native_typed_data|_UnmodifiableByteBufferView", "typed_data|ByteBuffer"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableByteBufferView, () => dart.global.Object.setPrototypeOf({
    asUint8List: T$0.intAndintNToUint8List(),
    [$asUint8List]: T$0.intAndintNToUint8List(),
    asInt8List: T$0.intAndintNToInt8List(),
    [$asInt8List]: T$0.intAndintNToInt8List(),
    asUint8ClampedList: T$0.intAndintNToUint8ClampedList(),
    [$asUint8ClampedList]: T$0.intAndintNToUint8ClampedList(),
    asUint16List: T$0.intAndintNToUint16List(),
    [$asUint16List]: T$0.intAndintNToUint16List(),
    asInt16List: T$0.intAndintNToInt16List(),
    [$asInt16List]: T$0.intAndintNToInt16List(),
    asUint32List: T$0.intAndintNToUint32List(),
    [$asUint32List]: T$0.intAndintNToUint32List(),
    asInt32List: T$0.intAndintNToInt32List(),
    [$asInt32List]: T$0.intAndintNToInt32List(),
    asUint64List: T$0.intAndintNToUint64List(),
    [$asUint64List]: T$0.intAndintNToUint64List(),
    asInt64List: T$0.intAndintNToInt64List(),
    [$asInt64List]: T$0.intAndintNToInt64List(),
    asInt32x4List: T$0.intAndintNToInt32x4List(),
    [$asInt32x4List]: T$0.intAndintNToInt32x4List(),
    asFloat32List: T$0.intAndintNToFloat32List(),
    [$asFloat32List]: T$0.intAndintNToFloat32List(),
    asFloat64List: T$0.intAndintNToFloat64List(),
    [$asFloat64List]: T$0.intAndintNToFloat64List(),
    asFloat32x4List: T$0.intAndintNToFloat32x4List(),
    [$asFloat32x4List]: T$0.intAndintNToFloat32x4List(),
    asFloat64x2List: T$0.intAndintNToFloat64x2List(),
    [$asFloat64x2List]: T$0.intAndintNToFloat64x2List(),
    asByteData: T$0.intAndintNToByteData(),
    [$asByteData]: T$0.intAndintNToByteData()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableByteBufferView))));
  dart.setGetterSignature(_native_typed_data._UnmodifiableByteBufferView, () => dart.global.Object.setPrototypeOf({
    lengthInBytes: T$.int(),
    [$lengthInBytes]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableByteBufferView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableByteBufferView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableByteBufferView, () => dart.global.Object.setPrototypeOf({[_data]: {type: T$0.ByteBuffer(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableByteBufferView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableByteBufferView, [
    'asUint8List',
    'asInt8List',
    'asUint8ClampedList',
    'asUint16List',
    'asInt16List',
    'asUint32List',
    'asInt32List',
    'asUint64List',
    'asInt64List',
    'asInt32x4List',
    'asFloat32List',
    'asFloat64List',
    'asFloat32x4List',
    'asFloat64x2List',
    'asByteData'
  ]);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableByteBufferView, ['lengthInBytes']);
  var _unsupported = dart.privateName(_native_typed_data, "_unsupported");
  _native_typed_data._UnmodifiableByteDataView = class _UnmodifiableByteDataView extends core.Object {
    static ['_#new#tearOff'](data) {
      if (data == null) dart.nullFailed(I[71], 1914, 38, "data");
      return new _native_typed_data._UnmodifiableByteDataView.new(data);
    }
    asUnmodifiableView() {
      return this;
    }
    getInt8(byteOffset) {
      if (byteOffset == null) dart.nullFailed(I[71], 1918, 19, "byteOffset");
      return this[_data][$getInt8](byteOffset);
    }
    setInt8(byteOffset, value) {
      if (byteOffset == null) dart.nullFailed(I[71], 1920, 20, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1920, 36, "value");
      return this[_unsupported]();
    }
    getUint8(byteOffset) {
      if (byteOffset == null) dart.nullFailed(I[71], 1922, 20, "byteOffset");
      return this[_data][$getUint8](byteOffset);
    }
    setUint8(byteOffset, value) {
      if (byteOffset == null) dart.nullFailed(I[71], 1924, 21, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1924, 37, "value");
      return this[_unsupported]();
    }
    getInt16(byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1926, 20, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 1926, 40, "endian");
      return this[_data][$getInt16](byteOffset, endian);
    }
    setInt16(byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1929, 21, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1929, 37, "value");
      if (endian == null) dart.nullFailed(I[71], 1929, 52, "endian");
      return this[_unsupported]();
    }
    getUint16(byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1932, 21, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 1932, 41, "endian");
      return this[_data][$getUint16](byteOffset, endian);
    }
    setUint16(byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1935, 22, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1935, 38, "value");
      if (endian == null) dart.nullFailed(I[71], 1935, 53, "endian");
      return this[_unsupported]();
    }
    getInt32(byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1938, 20, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 1938, 40, "endian");
      return this[_data][$getInt32](byteOffset, endian);
    }
    setInt32(byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1941, 21, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1941, 37, "value");
      if (endian == null) dart.nullFailed(I[71], 1941, 52, "endian");
      return this[_unsupported]();
    }
    getUint32(byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1944, 21, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 1944, 41, "endian");
      return this[_data][$getUint32](byteOffset, endian);
    }
    setUint32(byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1947, 22, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1947, 38, "value");
      if (endian == null) dart.nullFailed(I[71], 1947, 53, "endian");
      return this[_unsupported]();
    }
    getInt64(byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1950, 20, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 1950, 40, "endian");
      return this[_data][$getInt64](byteOffset, endian);
    }
    setInt64(byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1953, 21, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1953, 37, "value");
      if (endian == null) dart.nullFailed(I[71], 1953, 52, "endian");
      return this[_unsupported]();
    }
    getUint64(byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1956, 21, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 1956, 41, "endian");
      return this[_data][$getUint64](byteOffset, endian);
    }
    setUint64(byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1959, 22, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1959, 38, "value");
      if (endian == null) dart.nullFailed(I[71], 1959, 53, "endian");
      return this[_unsupported]();
    }
    getFloat32(byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1962, 25, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 1962, 45, "endian");
      return this[_data][$getFloat32](byteOffset, endian);
    }
    setFloat32(byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1965, 23, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1965, 42, "value");
      if (endian == null) dart.nullFailed(I[71], 1965, 57, "endian");
      return this[_unsupported]();
    }
    getFloat64(byteOffset, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1968, 25, "byteOffset");
      if (endian == null) dart.nullFailed(I[71], 1968, 45, "endian");
      return this[_data][$getFloat64](byteOffset, endian);
    }
    setFloat64(byteOffset, value, endian = C[75] || CT.C75) {
      if (byteOffset == null) dart.nullFailed(I[71], 1971, 23, "byteOffset");
      if (value == null) dart.nullFailed(I[71], 1971, 42, "value");
      if (endian == null) dart.nullFailed(I[71], 1971, 57, "endian");
      return this[_unsupported]();
    }
    get elementSizeInBytes() {
      return this[_data][$elementSizeInBytes];
    }
    get offsetInBytes() {
      return this[_data][$offsetInBytes];
    }
    get lengthInBytes() {
      return this[_data][$lengthInBytes];
    }
    get buffer() {
      return new _native_typed_data._UnmodifiableByteBufferView.new(this[_data][$buffer]);
    }
    [_unsupported]() {
      dart.throw(new core.UnsupportedError.new("An UnmodifiableByteDataView may not be modified"));
    }
  };
  (_native_typed_data._UnmodifiableByteDataView.new = function(data) {
    if (data == null) dart.nullFailed(I[71], 1914, 38, "data");
    this[_data] = data;
    ;
  }).prototype = _native_typed_data._UnmodifiableByteDataView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableByteDataView, ["_native_typed_data|_UnmodifiableByteDataView", "typed_data|ByteData", "typed_data|TypedData"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableByteDataView, () => dart.global.Object.setPrototypeOf({
    asUnmodifiableView: T$0.VoidToByteData(),
    [$asUnmodifiableView]: T$0.VoidToByteData(),
    getInt8: T$.intToint(),
    [$getInt8]: T$.intToint(),
    setInt8: T$.intAndintTovoid(),
    [$setInt8]: T$.intAndintTovoid(),
    getUint8: T$.intToint(),
    [$getUint8]: T$.intToint(),
    setUint8: T$.intAndintTovoid(),
    [$setUint8]: T$.intAndintTovoid(),
    getInt16: T$0.intAndEndianToint(),
    [$getInt16]: T$0.intAndEndianToint(),
    setInt16: T$0.intAndintAndEndianTovoid(),
    [$setInt16]: T$0.intAndintAndEndianTovoid(),
    getUint16: T$0.intAndEndianToint(),
    [$getUint16]: T$0.intAndEndianToint(),
    setUint16: T$0.intAndintAndEndianTovoid(),
    [$setUint16]: T$0.intAndintAndEndianTovoid(),
    getInt32: T$0.intAndEndianToint(),
    [$getInt32]: T$0.intAndEndianToint(),
    setInt32: T$0.intAndintAndEndianTovoid(),
    [$setInt32]: T$0.intAndintAndEndianTovoid(),
    getUint32: T$0.intAndEndianToint(),
    [$getUint32]: T$0.intAndEndianToint(),
    setUint32: T$0.intAndintAndEndianTovoid(),
    [$setUint32]: T$0.intAndintAndEndianTovoid(),
    getInt64: T$0.intAndEndianToint(),
    [$getInt64]: T$0.intAndEndianToint(),
    setInt64: T$0.intAndintAndEndianTovoid(),
    [$setInt64]: T$0.intAndintAndEndianTovoid(),
    getUint64: T$0.intAndEndianToint(),
    [$getUint64]: T$0.intAndEndianToint(),
    setUint64: T$0.intAndintAndEndianTovoid(),
    [$setUint64]: T$0.intAndintAndEndianTovoid(),
    getFloat32: T$0.intAndEndianTodouble(),
    [$getFloat32]: T$0.intAndEndianTodouble(),
    setFloat32: T$0.intAnddoubleAndEndianTovoid(),
    [$setFloat32]: T$0.intAnddoubleAndEndianTovoid(),
    getFloat64: T$0.intAndEndianTodouble(),
    [$getFloat64]: T$0.intAndEndianTodouble(),
    setFloat64: T$0.intAnddoubleAndEndianTovoid(),
    [$setFloat64]: T$0.intAnddoubleAndEndianTovoid(),
    [_unsupported]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableByteDataView))));
  dart.setGetterSignature(_native_typed_data._UnmodifiableByteDataView, () => dart.global.Object.setPrototypeOf({
    elementSizeInBytes: T$.int(),
    [$elementSizeInBytes]: T$.int(),
    offsetInBytes: T$.int(),
    [$offsetInBytes]: T$.int(),
    lengthInBytes: T$.int(),
    [$lengthInBytes]: T$.int(),
    buffer: T$0.ByteBuffer(),
    [$buffer]: T$0.ByteBuffer()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableByteDataView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableByteDataView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableByteDataView, () => dart.global.Object.setPrototypeOf({[_data]: {type: T$0.ByteData(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableByteDataView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableByteDataView, [
    'asUnmodifiableView',
    'getInt8',
    'setInt8',
    'getUint8',
    'setUint8',
    'getInt16',
    'setInt16',
    'getUint16',
    'setUint16',
    'getInt32',
    'setInt32',
    'getUint32',
    'setUint32',
    'getInt64',
    'setInt64',
    'getUint64',
    'setUint64',
    'getFloat32',
    'setFloat32',
    'getFloat64',
    'setFloat64'
  ]);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableByteDataView, ['elementSizeInBytes', 'offsetInBytes', 'lengthInBytes', 'buffer']);
  var _list$0 = dart.privateName(_native_typed_data, "_list");
  var _createList = dart.privateName(_native_typed_data, "_createList");
  _native_typed_data._UnmodifiableTypedListMixin$ = dart.generic((N, L, TD) => {
    var __t$intToN = () => (__t$intToN = dart.constFn(N[_eval]("0(core|int)")))();
    var __t$intAndintNToL = () => (__t$intAndintNToL = dart.constFn(L[_eval]("0(core|int[core|int?])")))();
    var __t$VoidToTD = () => (__t$VoidToTD = dart.constFn(TD[_eval]("0()")))();
    class _UnmodifiableTypedListMixin extends core.Object {}
    _UnmodifiableTypedListMixin[dart.mixinOn] = Object => class _UnmodifiableTypedListMixin extends Object {
      get [_data]() {
        return TD[_as](this[_list$0]);
      }
      get length() {
        return this[_list$0][$length];
      }
      _get(index) {
        if (index == null) dart.nullFailed(I[71], 1993, 21, "index");
        return this[_list$0][$_get](index);
      }
      get elementSizeInBytes() {
        return this[_data][$elementSizeInBytes];
      }
      get offsetInBytes() {
        return this[_data][$offsetInBytes];
      }
      get lengthInBytes() {
        return this[_data][$lengthInBytes];
      }
      asUnmodifiableView() {
        return this;
      }
      get buffer() {
        return new _native_typed_data._UnmodifiableByteBufferView.new(this[_data][$buffer]);
      }
      sublist(start, end = null) {
        if (start == null) dart.nullFailed(I[71], 2007, 17, "start");
        let endIndex = core.RangeError.checkValidRange(start, dart.nullCheck(end), this.length);
        let sublistLength = dart.notNull(endIndex) - dart.notNull(start);
        let result = this[_createList](sublistLength);
        result[$setRange](0, sublistLength, this[_list$0], start);
        return result;
      }
    };
    (_UnmodifiableTypedListMixin[dart.mixinNew] = function() {
    }).prototype = _UnmodifiableTypedListMixin.prototype;
    dart.addRtiResources(_UnmodifiableTypedListMixin, ["_native_typed_data|_UnmodifiableTypedListMixin"]);
    dart.setMethodSignature(_UnmodifiableTypedListMixin, () => dart.global.Object.setPrototypeOf({
      _get: __t$intToN(),
      asUnmodifiableView: __t$VoidToTD(),
      sublist: __t$intAndintNToL()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_UnmodifiableTypedListMixin))));
    dart.setGetterSignature(_UnmodifiableTypedListMixin, () => dart.global.Object.setPrototypeOf({
      [_data]: TD,
      length: T$.int(),
      elementSizeInBytes: T$.int(),
      offsetInBytes: T$.int(),
      lengthInBytes: T$.int(),
      buffer: T$0.ByteBuffer()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_UnmodifiableTypedListMixin))));
    dart.setLibraryUri(_UnmodifiableTypedListMixin, I[72]);
    return _UnmodifiableTypedListMixin;
  });
  _native_typed_data._UnmodifiableTypedListMixin = _native_typed_data._UnmodifiableTypedListMixin$();
  var _list$1 = dart.privateName(_native_typed_data, "_UnmodifiableUint8ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfint() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36, G._UnmodifiableTypedListMixinOfint$Uint8List$Uint8List());
  _native_typed_data._UnmodifiableUint8ListView = class _UnmodifiableUint8ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36 {
    get [_list$0]() {
      return this[_list$1];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2022, 40, "list");
      return new _native_typed_data._UnmodifiableUint8ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2024, 29, "length");
      return _native_typed_data.NativeUint8List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableUint8ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2022, 40, "list");
    this[_list$1] = list;
    this.$ti = this.$ti || T$0._UnmodifiableUint8ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint8ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableUint8ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableUint8ListView, ["_native_typed_data|_UnmodifiableUint8ListView", "typed_data|Uint8List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableUint8ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToUint8List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint8ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableUint8ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableUint8ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint8ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableUint8ListView, ['_get', 'asUnmodifiableView', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableUint8ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$2 = dart.privateName(_native_typed_data, "_UnmodifiableInt8ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$ = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfint() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$, G._UnmodifiableTypedListMixinOfint$Int8List$Int8List());
  _native_typed_data._UnmodifiableInt8ListView = class _UnmodifiableInt8ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$ {
    get [_list$0]() {
      return this[_list$2];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2032, 38, "list");
      return new _native_typed_data._UnmodifiableInt8ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2034, 28, "length");
      return _native_typed_data.NativeInt8List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableInt8ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2032, 38, "list");
    this[_list$2] = list;
    this.$ti = this.$ti || T$0._UnmodifiableInt8ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt8ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableInt8ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableInt8ListView, ["_native_typed_data|_UnmodifiableInt8ListView", "typed_data|Int8List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableInt8ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToInt8List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt8ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableInt8ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableInt8ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Int8List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt8ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableInt8ListView, ['_get', 'asUnmodifiableView', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableInt8ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$3 = dart.privateName(_native_typed_data, "_UnmodifiableUint8ClampedListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$0 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfint() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$0.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$0).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$0.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$0, G._UnmodifiableTypedListMixinOfint$Uint8ClampedList$Uint8ClampedList());
  _native_typed_data._UnmodifiableUint8ClampedListView = class _UnmodifiableUint8ClampedListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$0 {
    get [_list$0]() {
      return this[_list$3];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2042, 54, "list");
      return new _native_typed_data._UnmodifiableUint8ClampedListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2044, 36, "length");
      return _native_typed_data.NativeUint8ClampedList.new(length);
    }
  };
  (_native_typed_data._UnmodifiableUint8ClampedListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2042, 54, "list");
    this[_list$3] = list;
    this.$ti = this.$ti || T$0._UnmodifiableUint8ClampedListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint8ClampedListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableUint8ClampedListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableUint8ClampedListView, ["_native_typed_data|_UnmodifiableUint8ClampedListView", "typed_data|Uint8ClampedList", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableUint8ClampedListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToUint8ClampedList()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint8ClampedListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableUint8ClampedListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableUint8ClampedListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Uint8ClampedList(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint8ClampedListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableUint8ClampedListView, ['_get', 'asUnmodifiableView', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableUint8ClampedListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$4 = dart.privateName(_native_typed_data, "_UnmodifiableUint16ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$1 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfint() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$1.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$1).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$1.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$1, G._UnmodifiableTypedListMixinOfint$Uint16List$Uint16List());
  _native_typed_data._UnmodifiableUint16ListView = class _UnmodifiableUint16ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$1 {
    get [_list$0]() {
      return this[_list$4];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2052, 42, "list");
      return new _native_typed_data._UnmodifiableUint16ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2054, 30, "length");
      return _native_typed_data.NativeUint16List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableUint16ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2052, 42, "list");
    this[_list$4] = list;
    this.$ti = this.$ti || T$0._UnmodifiableUint16ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint16ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableUint16ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableUint16ListView, ["_native_typed_data|_UnmodifiableUint16ListView", "typed_data|Uint16List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableUint16ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToUint16List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint16ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableUint16ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableUint16ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Uint16List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint16ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableUint16ListView, ['_get', 'asUnmodifiableView', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableUint16ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$5 = dart.privateName(_native_typed_data, "_UnmodifiableInt16ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$2 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfint() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$2.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$2).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$2.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$2, G._UnmodifiableTypedListMixinOfint$Int16List$Int16List());
  _native_typed_data._UnmodifiableInt16ListView = class _UnmodifiableInt16ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$2 {
    get [_list$0]() {
      return this[_list$5];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2062, 40, "list");
      return new _native_typed_data._UnmodifiableInt16ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2064, 29, "length");
      return _native_typed_data.NativeInt16List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableInt16ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2062, 40, "list");
    this[_list$5] = list;
    this.$ti = this.$ti || T$0._UnmodifiableInt16ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt16ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableInt16ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableInt16ListView, ["_native_typed_data|_UnmodifiableInt16ListView", "typed_data|Int16List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableInt16ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToInt16List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt16ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableInt16ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableInt16ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Int16List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt16ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableInt16ListView, ['_get', 'asUnmodifiableView', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableInt16ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$6 = dart.privateName(_native_typed_data, "_UnmodifiableUint32ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$3 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfint() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$3.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$3).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$3.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$3, G._UnmodifiableTypedListMixinOfint$Uint32List$Uint32List());
  _native_typed_data._UnmodifiableUint32ListView = class _UnmodifiableUint32ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$3 {
    get [_list$0]() {
      return this[_list$6];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2072, 42, "list");
      return new _native_typed_data._UnmodifiableUint32ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2074, 30, "length");
      return _native_typed_data.NativeUint32List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableUint32ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2072, 42, "list");
    this[_list$6] = list;
    this.$ti = this.$ti || T$0._UnmodifiableUint32ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint32ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableUint32ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableUint32ListView, ["_native_typed_data|_UnmodifiableUint32ListView", "typed_data|Uint32List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableUint32ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToUint32List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint32ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableUint32ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableUint32ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Uint32List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint32ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableUint32ListView, ['_get', 'asUnmodifiableView', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableUint32ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$7 = dart.privateName(_native_typed_data, "_UnmodifiableInt32ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$4 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfint() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$4.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$4).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$4.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$4, G._UnmodifiableTypedListMixinOfint$Int32List$Int32List());
  _native_typed_data._UnmodifiableInt32ListView = class _UnmodifiableInt32ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$4 {
    get [_list$0]() {
      return this[_list$7];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2082, 40, "list");
      return new _native_typed_data._UnmodifiableInt32ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2084, 29, "length");
      return _native_typed_data.NativeInt32List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableInt32ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2082, 40, "list");
    this[_list$7] = list;
    this.$ti = this.$ti || T$0._UnmodifiableInt32ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt32ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableInt32ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableInt32ListView, ["_native_typed_data|_UnmodifiableInt32ListView", "typed_data|Int32List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableInt32ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToInt32List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt32ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableInt32ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableInt32ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Int32List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt32ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableInt32ListView, ['_get', 'asUnmodifiableView', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableInt32ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$8 = dart.privateName(_native_typed_data, "_UnmodifiableUint64ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$5 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfint() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$5.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$5).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$5.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$5, G._UnmodifiableTypedListMixinOfint$Uint64List$Uint64List());
  _native_typed_data._UnmodifiableUint64ListView = class _UnmodifiableUint64ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$5 {
    get [_list$0]() {
      return this[_list$8];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2092, 42, "list");
      return new _native_typed_data._UnmodifiableUint64ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2094, 30, "length");
      return typed_data.Uint64List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableUint64ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2092, 42, "list");
    this[_list$8] = list;
    this.$ti = this.$ti || T$0._UnmodifiableUint64ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint64ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableUint64ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableUint64ListView, ["_native_typed_data|_UnmodifiableUint64ListView", "typed_data|Uint64List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableUint64ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToUint64List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint64ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableUint64ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableUint64ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Uint64List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableUint64ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableUint64ListView, ['_get', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableUint64ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$9 = dart.privateName(_native_typed_data, "_UnmodifiableInt64ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$6 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfint() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$6.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$6).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$6.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$6, G._UnmodifiableTypedListMixinOfint$Int64List$Int64List());
  _native_typed_data._UnmodifiableInt64ListView = class _UnmodifiableInt64ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$6 {
    get [_list$0]() {
      return this[_list$9];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2102, 40, "list");
      return new _native_typed_data._UnmodifiableInt64ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2104, 29, "length");
      return typed_data.Int64List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableInt64ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2102, 40, "list");
    this[_list$9] = list;
    this.$ti = this.$ti || T$0._UnmodifiableInt64ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt64ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableInt64ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableInt64ListView, ["_native_typed_data|_UnmodifiableInt64ListView", "typed_data|Int64List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableInt64ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToInt64List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt64ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableInt64ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableInt64ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Int64List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt64ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableInt64ListView, ['_get', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableInt64ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$10 = dart.privateName(_native_typed_data, "_UnmodifiableInt32x4ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$7 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfInt32x4() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$7.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$7).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$7.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$7, G._UnmodifiableTypedListMixinOfInt32x4$Int32x4List$Int32x4List());
  _native_typed_data._UnmodifiableInt32x4ListView = class _UnmodifiableInt32x4ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$7 {
    get [_list$0]() {
      return this[_list$10];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2112, 44, "list");
      return new _native_typed_data._UnmodifiableInt32x4ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2114, 31, "length");
      return new _native_typed_data.NativeInt32x4List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableInt32x4ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2112, 44, "list");
    this[_list$10] = list;
    this.$ti = this.$ti || T$0._UnmodifiableInt32x4ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt32x4ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableInt32x4ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableInt32x4ListView, ["_native_typed_data|_UnmodifiableInt32x4ListView", "typed_data|Int32x4List", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableInt32x4ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToInt32x4List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt32x4ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableInt32x4ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableInt32x4ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Int32x4List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableInt32x4ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableInt32x4ListView, ['_get', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableInt32x4ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$11 = dart.privateName(_native_typed_data, "_UnmodifiableFloat32x4ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$8 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfFloat32x4() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$8.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$8).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$8.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$8, G._UnmodifiableTypedListMixinOfFloat32x4$Float32x4List$Float32x4List());
  _native_typed_data._UnmodifiableFloat32x4ListView = class _UnmodifiableFloat32x4ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$8 {
    get [_list$0]() {
      return this[_list$11];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2123, 48, "list");
      return new _native_typed_data._UnmodifiableFloat32x4ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2125, 33, "length");
      return new _native_typed_data.NativeFloat32x4List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableFloat32x4ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2123, 48, "list");
    this[_list$11] = list;
    this.$ti = this.$ti || T$0._UnmodifiableFloat32x4ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat32x4ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableFloat32x4ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableFloat32x4ListView, ["_native_typed_data|_UnmodifiableFloat32x4ListView", "typed_data|Float32x4List", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableFloat32x4ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToFloat32x4List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat32x4ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableFloat32x4ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableFloat32x4ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Float32x4List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat32x4ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableFloat32x4ListView, ['_get', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableFloat32x4ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$12 = dart.privateName(_native_typed_data, "_UnmodifiableFloat64x2ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$9 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfFloat64x2() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$9.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$9).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$9.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$9, G._UnmodifiableTypedListMixinOfFloat64x2$Float64x2List$Float64x2List());
  _native_typed_data._UnmodifiableFloat64x2ListView = class _UnmodifiableFloat64x2ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$9 {
    get [_list$0]() {
      return this[_list$12];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2134, 48, "list");
      return new _native_typed_data._UnmodifiableFloat64x2ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2136, 33, "length");
      return new _native_typed_data.NativeFloat64x2List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableFloat64x2ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2134, 48, "list");
    this[_list$12] = list;
    this.$ti = this.$ti || T$0._UnmodifiableFloat64x2ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat64x2ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableFloat64x2ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableFloat64x2ListView, ["_native_typed_data|_UnmodifiableFloat64x2ListView", "typed_data|Float64x2List", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableFloat64x2ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToFloat64x2List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat64x2ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableFloat64x2ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableFloat64x2ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Float64x2List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat64x2ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableFloat64x2ListView, ['_get', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableFloat64x2ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$13 = dart.privateName(_native_typed_data, "_UnmodifiableFloat32ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$10 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfdouble() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$10.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$10).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$10.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$10, G._UnmodifiableTypedListMixinOfdouble$Float32List$Float32List());
  _native_typed_data._UnmodifiableFloat32ListView = class _UnmodifiableFloat32ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$10 {
    get [_list$0]() {
      return this[_list$13];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2144, 44, "list");
      return new _native_typed_data._UnmodifiableFloat32ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2146, 31, "length");
      return _native_typed_data.NativeFloat32List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableFloat32ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2144, 44, "list");
    this[_list$13] = list;
    this.$ti = this.$ti || T$0._UnmodifiableFloat32ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat32ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableFloat32ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableFloat32ListView, ["_native_typed_data|_UnmodifiableFloat32ListView", "typed_data|Float32List", "typed_data|_TypedFloatList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableFloat32ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToFloat32List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat32ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableFloat32ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableFloat32ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat32ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableFloat32ListView, ['_get', 'asUnmodifiableView', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableFloat32ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  var _list$14 = dart.privateName(_native_typed_data, "_UnmodifiableFloat64ListView._list");
  const UnmodifiableListBase__UnmodifiableTypedListMixin$36$11 = class UnmodifiableListBase__UnmodifiableTypedListMixin extends G.UnmodifiableListBaseOfdouble() {};
  (UnmodifiableListBase__UnmodifiableTypedListMixin$36$11.new = function() {
    dart.global.Object.getPrototypeOf(UnmodifiableListBase__UnmodifiableTypedListMixin$36$11).new.call(this);
  }).prototype = UnmodifiableListBase__UnmodifiableTypedListMixin$36$11.prototype;
  dart.applyMixin(UnmodifiableListBase__UnmodifiableTypedListMixin$36$11, G._UnmodifiableTypedListMixinOfdouble$Float64List$Float64List());
  _native_typed_data._UnmodifiableFloat64ListView = class _UnmodifiableFloat64ListView extends UnmodifiableListBase__UnmodifiableTypedListMixin$36$11 {
    get [_list$0]() {
      return this[_list$14];
    }
    set [_list$0](value) {
      super[_list$0] = value;
    }
    static ['_#new#tearOff'](list) {
      if (list == null) dart.nullFailed(I[71], 2154, 44, "list");
      return new _native_typed_data._UnmodifiableFloat64ListView.new(list);
    }
    [_createList](length) {
      if (length == null) dart.nullFailed(I[71], 2156, 31, "length");
      return _native_typed_data.NativeFloat64List.new(length);
    }
  };
  (_native_typed_data._UnmodifiableFloat64ListView.new = function(list) {
    if (list == null) dart.nullFailed(I[71], 2154, 44, "list");
    this[_list$14] = list;
    this.$ti = this.$ti || T$0._UnmodifiableFloat64ListView();
    dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat64ListView).new.call(this);
    ;
  }).prototype = _native_typed_data._UnmodifiableFloat64ListView.prototype;
  dart.addRtiResources(_native_typed_data._UnmodifiableFloat64ListView, ["_native_typed_data|_UnmodifiableFloat64ListView", "typed_data|Float64List", "typed_data|_TypedFloatList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(_native_typed_data._UnmodifiableFloat64ListView, () => dart.global.Object.setPrototypeOf({[_createList]: T$0.intToFloat64List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat64ListView))));
  dart.setLibraryUri(_native_typed_data._UnmodifiableFloat64ListView, I[72]);
  dart.setFieldSignature(_native_typed_data._UnmodifiableFloat64ListView, () => dart.global.Object.setPrototypeOf({[_list$0]: {type: T$0.Float64List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_native_typed_data._UnmodifiableFloat64ListView))));
  dart.defineExtensionMethods(_native_typed_data._UnmodifiableFloat64ListView, ['_get', 'asUnmodifiableView', 'sublist']);
  dart.defineExtensionAccessors(_native_typed_data._UnmodifiableFloat64ListView, [
    'length',
    'elementSizeInBytes',
    'offsetInBytes',
    'lengthInBytes',
    'buffer'
  ]);
  _native_typed_data._checkLength = function _checkLength(length) {
    if (!T$.int()[_is](length)) dart.throw(new core.ArgumentError.new("Invalid length " + dart.str(length)));
    return length;
  };
  _native_typed_data._checkViewArguments = function _checkViewArguments(buffer, offsetInBytes, length) {
    if (!T$0.NativeByteBuffer()[_is](buffer)) {
      dart.throw(new core.ArgumentError.new("Invalid view buffer"));
    }
    if (!T$.int()[_is](offsetInBytes)) {
      dart.throw(new core.ArgumentError.new("Invalid view offsetInBytes " + dart.str(offsetInBytes)));
    }
    if (!T$.intN()[_is](length)) {
      dart.throw(new core.ArgumentError.new("Invalid view length " + dart.str(length)));
    }
  };
  _native_typed_data._ensureNativeList = function _ensureNativeList(list) {
    if (list == null) dart.nullFailed(I[71], 379, 29, "list");
    if (T$0.JSIndexable()[_is](list)) return list;
    let result = core.List.filled(list[$length], null);
    for (let i = 0; i < dart.notNull(list[$length]); i = i + 1) {
      result[$_set](i, list[$_get](i));
    }
    return result;
  };
  _native_typed_data._isInvalidArrayIndex = function _isInvalidArrayIndex(index) {
    if (index == null) dart.nullFailed(I[71], 1822, 31, "index");
    return index >>> 0 !== index;
  };
  _native_typed_data._checkValidIndex = function _checkValidIndex(index, list, length) {
    if (index == null) dart.nullFailed(I[71], 1829, 27, "index");
    if (list == null) dart.nullFailed(I[71], 1829, 39, "list");
    if (length == null) dart.nullFailed(I[71], 1829, 49, "length");
    if (dart.test(_native_typed_data._isInvalidArrayIndex(index)) || index >= dart.notNull(length)) {
      dart.throw(_js_helper.diagnoseIndexError(list, index));
    }
  };
  _native_typed_data._checkValidRange = function _checkValidRange(start, end, length) {
    if (start == null) dart.nullFailed(I[71], 1842, 26, "start");
    if (length == null) dart.nullFailed(I[71], 1842, 47, "length");
    if (dart.test(_native_typed_data._isInvalidArrayIndex(start)) || (end == null ? dart.notNull(start) > dart.notNull(length) : dart.test(_native_typed_data._isInvalidArrayIndex(end)) || dart.notNull(start) > dart.notNull(end) || dart.notNull(end) > dart.notNull(length))) {
      dart.throw(_js_helper.diagnoseRangeError(start, end, length));
    }
    if (end == null) return length;
    return end;
  };
  var ___AsyncStarImpl_controller = dart.privateName(async, "_#_AsyncStarImpl#controller");
  var ___AsyncStarImpl_controller_isSet = dart.privateName(async, "_#_AsyncStarImpl#controller#isSet");
  var ___AsyncStarImpl_jsIterator = dart.privateName(async, "_#_AsyncStarImpl#jsIterator");
  var ___AsyncStarImpl_jsIterator_isSet = dart.privateName(async, "_#_AsyncStarImpl#jsIterator#isSet");
  var _handleErrorCallback = dart.privateName(async, "_handleErrorCallback");
  var _runBodyCallback = dart.privateName(async, "_runBodyCallback");
  var _chainForeignFuture = dart.privateName(async, "_chainForeignFuture");
  var _thenAwait = dart.privateName(async, "_thenAwait");
  var _fatal = dart.privateName(async, "_fatal");
  async._AsyncStarImpl$ = dart.generic(T => {
    var __t$_AsyncStarImplOfT = () => (__t$_AsyncStarImplOfT = dart.constFn(T[_eval]("async|_AsyncStarImpl<0>")))();
    var __t$StreamControllerOfT = () => (__t$StreamControllerOfT = dart.constFn(T[_eval]("async|StreamController<0>")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$StreamControllerNOfT = () => (__t$StreamControllerNOfT = dart.constFn(T[_eval]("async|StreamController<0>?")))();
    var __t$_AsyncStarImplOfTToObject = () => (__t$_AsyncStarImplOfTToObject = dart.constFn(T[_eval]("core|Object(async|_AsyncStarImpl<0>)")))();
    var __t$StreamControllerOfT$ = () => (__t$StreamControllerOfT$ = dart.constFn(async.StreamController$(T)))();
    class _AsyncStarImpl extends core.Object {
      get controller() {
        let t$3676;
        return dart.test(this[___AsyncStarImpl_controller_isSet]) ? (t$3676 = this[___AsyncStarImpl_controller], t$3676) : dart.throw(new _internal.LateError.fieldNI("controller"));
      }
      set controller(controller$35param) {
        __t$StreamControllerOfT()[_as](controller$35param);
        if (controller$35param == null) dart.nullFailed(I[73], 230, 28, "controller#param");
        this[___AsyncStarImpl_controller_isSet] = true;
        this[___AsyncStarImpl_controller] = controller$35param;
      }
      get jsIterator() {
        let t$3676;
        return dart.test(this[___AsyncStarImpl_jsIterator_isSet]) ? (t$3676 = this[___AsyncStarImpl_jsIterator], t$3676) : dart.throw(new _internal.LateError.fieldNI("jsIterator"));
      }
      set jsIterator(jsIterator$35param) {
        if (jsIterator$35param == null) dart.nullFailed(I[73], 246, 15, "jsIterator#param");
        this[___AsyncStarImpl_jsIterator_isSet] = true;
        this[___AsyncStarImpl_jsIterator] = jsIterator$35param;
      }
      static ['_#new#tearOff'](T, initGenerator) {
        if (initGenerator == null) dart.nullFailed(I[73], 251, 23, "initGenerator");
        return new (async._AsyncStarImpl$(T)).new(initGenerator);
      }
      get stream() {
        return this.controller.stream;
      }
      get handleError() {
        if (this[_handleErrorCallback] == null) {
          this[_handleErrorCallback] = dart.fn((error, stackTrace) => {
            if (error == null) dart.nullFailed(I[73], 283, 31, "error");
            if (stackTrace == null) dart.nullFailed(I[73], 283, 49, "stackTrace");
            try {
              this.jsIterator.throw(dart.createErrorWithStack(error, stackTrace));
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let newStack = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                this.addError(e, newStack);
              } else
                throw t$36$35e;
            }
          }, T$.ObjectAndStackTraceToNull());
          let zone = async.Zone.current;
          if (zone != async.Zone.root) {
            this[_handleErrorCallback] = zone.bindBinaryCallback(T$.Null(), T$.Object(), T$.StackTrace(), dart.nullCheck(this[_handleErrorCallback]));
          }
        }
        return dart.nullCheck(this[_handleErrorCallback]);
      }
      scheduleGenerator() {
        if (this.isScheduled || dart.test(this.controller.isPaused) || this.isSuspendedAtYieldStar) {
          return;
        }
        this.isScheduled = true;
        let zone = async.Zone.current;
        if (this[_runBodyCallback] == null) {
          this[_runBodyCallback] = this.runBody.bind(this);
          if (zone != async.Zone.root) {
            let registered = zone.registerUnaryCallback(T$.void(), T$.ObjectN(), dart.nullCheck(this[_runBodyCallback]));
            this[_runBodyCallback] = dart.fn((arg = null) => zone.runUnaryGuarded(T$.ObjectN(), registered, arg), T$0.ObjectNTovoid$1());
          }
        }
        zone.scheduleMicrotask(dart.nullCheck(this[_runBodyCallback]));
      }
      runBody(awaitValue) {
        this.isScheduled = false;
        this.isSuspendedAtYield = false;
        this.isSuspendedAtAwait = false;
        let iterResult = null;
        try {
          iterResult = this.jsIterator.next(awaitValue);
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            this.addError(e, s);
            return;
          } else
            throw t$36$35e;
        }
        if (iterResult.done) {
          this.close();
          return;
        }
        if (this.isSuspendedAtYield || this.isSuspendedAtYieldStar) return;
        this.isSuspendedAtAwait = true;
        let value = iterResult.value;
        let f = null;
        if (T$0._Future()[_is](value)) {
          f = value;
        } else if (T$0.Future()[_is](value)) {
          f = new (G._FutureOfObjectN()).new();
          f[_chainForeignFuture](value);
        } else {
          f = new (G._FutureOfObjectN()).value(value);
        }
        f[_thenAwait](T$.void(), dart.nullCheck(this[_runBodyCallback]), this.handleError);
      }
      add(event) {
        T[_as](event);
        if (!this.onListenReceived) this[_fatal]("yield before stream is listened to");
        if (this.isSuspendedAtYield) this[_fatal]("unexpected yield");
        if (!dart.test(this.controller.hasListener)) {
          return true;
        }
        this.controller.add(event);
        this.scheduleGenerator();
        this.isSuspendedAtYield = true;
        return false;
      }
      addStream(stream) {
        __t$StreamOfT()[_as](stream);
        if (stream == null) dart.nullFailed(I[73], 403, 28, "stream");
        if (!this.onListenReceived) this[_fatal]("yield* before stream is listened to");
        if (!dart.test(this.controller.hasListener)) return true;
        this.isSuspendedAtYieldStar = true;
        let whenDoneAdding = this.controller.addStream(stream, {cancelOnError: false});
        whenDoneAdding.then(T$.Null(), dart.fn(_ => {
          this.isSuspendedAtYieldStar = false;
          this.scheduleGenerator();
          if (!this.isScheduled) this.isSuspendedAtYield = true;
        }, T$0.dynamicToNull()), {onError: this.handleError});
        return false;
      }
      addError(error, stackTrace) {
        if (error == null) dart.nullFailed(I[73], 417, 24, "error");
        if (stackTrace == null) dart.nullFailed(I[73], 417, 42, "stackTrace");
        core.ArgumentError.checkNotNull(T$.Object(), error, "error");
        let completer = this.cancellationCompleter;
        if (completer != null && !dart.test(completer.isCompleted)) {
          completer.completeError(error, stackTrace);
        } else if (dart.test(this.controller.hasListener)) {
          this.controller.addError(error, stackTrace);
        }
        this.close();
      }
      close() {
        let completer = this.cancellationCompleter;
        if (completer != null && !dart.test(completer.isCompleted)) {
          completer.complete();
        }
        this.controller.close();
      }
      onListen() {
        if (!!this.onListenReceived) dart.assertFailed(null, I[73], 445, 12, "!onListenReceived");
        this.onListenReceived = true;
        this.scheduleGenerator();
      }
      onResume() {
        if (this.isSuspendedAtYield) {
          this.scheduleGenerator();
        }
      }
      onCancel() {
        if (dart.test(this.controller.isClosed)) {
          return null;
        }
        if (this.cancellationCompleter == null) {
          this.cancellationCompleter = async.Completer.new();
          if (this.isSuspendedAtYield) {
            this.scheduleGenerator();
          }
        }
        return dart.nullCheck(this.cancellationCompleter).future;
      }
      [_fatal](message) {
        if (message == null) dart.nullFailed(I[73], 472, 17, "message");
        return dart.throw(new core.StateError.new(message));
      }
    }
    (_AsyncStarImpl.new = function(initGenerator) {
      if (initGenerator == null) dart.nullFailed(I[73], 251, 23, "initGenerator");
      this[___AsyncStarImpl_controller] = null;
      this[___AsyncStarImpl_controller_isSet] = false;
      this.isSuspendedAtYieldStar = false;
      this.onListenReceived = false;
      this.isScheduled = false;
      this.isSuspendedAtYield = false;
      this.isSuspendedAtAwait = false;
      this.cancellationCompleter = null;
      this[___AsyncStarImpl_jsIterator] = null;
      this[___AsyncStarImpl_jsIterator_isSet] = false;
      this[_handleErrorCallback] = null;
      this[_runBodyCallback] = null;
      this.initGenerator = initGenerator;
      this.$ti = this.$ti || __t$_AsyncStarImplOfT();
      this.controller = __t$StreamControllerOfT$().new({onListen: this.onListen.bind(this), onResume: this.onResume.bind(this), onCancel: this.onCancel.bind(this)});
      this.jsIterator = this.initGenerator(this)[Symbol.iterator]();
    }).prototype = _AsyncStarImpl.prototype;
    dart.addRtiResources(_AsyncStarImpl, ["async|_AsyncStarImpl"]);
    dart.setMethodSignature(_AsyncStarImpl, () => dart.global.Object.setPrototypeOf({
      scheduleGenerator: T$.VoidTovoid(),
      runBody: T$.dynamicTovoid(),
      add: T$.ObjectNTobool(),
      addStream: T$.ObjectNTobool(),
      addError: T$.ObjectAndStackTraceTovoid(),
      close: T$.VoidTovoid(),
      onListen: T$.VoidTodynamic(),
      onResume: T$.VoidTodynamic(),
      onCancel: T$.VoidTodynamic(),
      [_fatal]: T$.StringTodynamic()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_AsyncStarImpl))));
    dart.setGetterSignature(_AsyncStarImpl, () => dart.global.Object.setPrototypeOf({
      controller: __t$StreamControllerOfT(),
      jsIterator: T$.Object(),
      stream: __t$StreamOfT(),
      handleError: T$.ObjectAndStackTraceToNull()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_AsyncStarImpl))));
    dart.setSetterSignature(_AsyncStarImpl, () => dart.global.Object.setPrototypeOf({
      controller: T$.ObjectN(),
      jsIterator: T$.Object()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(_AsyncStarImpl))));
    dart.setLibraryUri(_AsyncStarImpl, I[39]);
    dart.setFieldSignature(_AsyncStarImpl, () => dart.global.Object.setPrototypeOf({
      [___AsyncStarImpl_controller]: {type: __t$StreamControllerNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [___AsyncStarImpl_controller_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      initGenerator: {type: __t$_AsyncStarImplOfTToObject(), isConst: false, isFinal: false},
      isSuspendedAtYieldStar: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      onListenReceived: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      isScheduled: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      isSuspendedAtYield: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      isSuspendedAtAwait: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      cancellationCompleter: {type: T$0.CompleterN(), isConst: false, isFinal: false, libraryUri: I[39]},
      [___AsyncStarImpl_jsIterator]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
      [___AsyncStarImpl_jsIterator_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_handleErrorCallback]: {type: T$0.ObjectAndStackTraceToNNull(), isConst: false, isFinal: false},
      [_runBodyCallback]: {type: T$0.ObjectNToNvoid(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_AsyncStarImpl))));
    return _AsyncStarImpl;
  });
  async._AsyncStarImpl = async._AsyncStarImpl$();
  var error$ = dart.privateName(async, "AsyncError.error");
  var stackTrace$ = dart.privateName(async, "AsyncError.stackTrace");
  async.AsyncError = class AsyncError extends core.Object {
    get error() {
      return this[error$];
    }
    set error(value) {
      super.error = value;
    }
    get stackTrace() {
      return this[stackTrace$];
    }
    set stackTrace(value) {
      super.stackTrace = value;
    }
    static ['_#new#tearOff'](error, stackTrace) {
      if (error == null) dart.nullFailed(I[74], 15, 21, "error");
      return new async.AsyncError.new(error, stackTrace);
    }
    static defaultStackTrace(error) {
      if (error == null) dart.nullFailed(I[74], 24, 46, "error");
      if (T$.Error()[_is](error)) {
        let stackTrace = error[$stackTrace];
        if (stackTrace != null) return stackTrace;
      }
      return core.StackTrace.empty;
    }
    toString() {
      return dart.str(this.error);
    }
  };
  (async.AsyncError.new = function(error, stackTrace) {
    let t$3678;
    if (error == null) dart.nullFailed(I[74], 15, 21, "error");
    this[error$] = _internal.checkNotNullable(T$.Object(), error, "error");
    this[stackTrace$] = (t$3678 = stackTrace, t$3678 == null ? async.AsyncError.defaultStackTrace(error) : t$3678);
    ;
  }).prototype = async.AsyncError.prototype;
  dart.addRtiResources(async.AsyncError, ["async|AsyncError", "core|Error"]);
  dart.setStaticMethodSignature(async.AsyncError, () => ['defaultStackTrace']);
  dart.setLibraryUri(async.AsyncError, I[39]);
  dart.setFieldSignature(async.AsyncError, () => dart.global.Object.setPrototypeOf({
    error: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]},
    stackTrace: {type: T$.StackTrace(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(async.AsyncError))));
  dart.defineExtensionMethods(async.AsyncError, ['toString']);
  dart.defineExtensionAccessors(async.AsyncError, ['stackTrace']);
  var _controller$ = dart.privateName(async, "_controller");
  var _subscribe = dart.privateName(async, "_subscribe");
  var _createSubscription = dart.privateName(async, "_createSubscription");
  var _onListen$ = dart.privateName(async, "_onListen");
  async._StreamImpl$ = dart.generic(T => {
    var __t$_StreamImplOfT = () => (__t$_StreamImplOfT = dart.constFn(T[_eval]("async|_StreamImpl<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT = () => (__t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?,core|Function?,~()?,core|bool)")))();
    var __t$_BufferingStreamSubscriptionOfT = () => (__t$_BufferingStreamSubscriptionOfT = dart.constFn(async._BufferingStreamSubscription$(T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _StreamImpl extends __t$StreamOfT() {
      listen(onData, opts) {
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        cancelOnError == null ? cancelOnError = false : null;
        let subscription = this[_createSubscription](onData, onError, onDone, cancelOnError);
        this[_onListen$](subscription);
        return subscription;
      }
      [_createSubscription](onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[77], 505, 47, "cancelOnError");
        return new (__t$_BufferingStreamSubscriptionOfT()).new(onData, onError, onDone, cancelOnError);
      }
      [_onListen$](subscription) {
        if (subscription == null) dart.nullFailed(I[77], 511, 37, "subscription");
      }
    }
    (_StreamImpl.new = function() {
      this.$ti = this.$ti || __t$_StreamImplOfT();
      dart.global.Object.getPrototypeOf(_StreamImpl).new.call(this);
      ;
    }).prototype = _StreamImpl.prototype;
    dart.addRtiResources(_StreamImpl, ["async|_StreamImpl"]);
    dart.setMethodSignature(_StreamImpl, () => dart.global.Object.setPrototypeOf({
      listen: __t$Fn__ToStreamSubscriptionOfT(),
      [_createSubscription]: __t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT(),
      [_onListen$]: T$0.StreamSubscriptionTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamImpl))));
    dart.setLibraryUri(_StreamImpl, I[39]);
    return _StreamImpl;
  });
  async._StreamImpl = async._StreamImpl$();
  async._ControllerStream$ = dart.generic(T => {
    var __t$_ControllerStreamOfT = () => (__t$_ControllerStreamOfT = dart.constFn(T[_eval]("async|_ControllerStream<0>")))();
    var __t$_StreamControllerLifecycleOfT = () => (__t$_StreamControllerLifecycleOfT = dart.constFn(T[_eval]("async|_StreamControllerLifecycle<0>")))();
    var __t$_StreamImplOfT = () => (__t$_StreamImplOfT = dart.constFn(async._StreamImpl$(T)))();
    class _ControllerStream extends __t$_StreamImplOfT() {
      static ['_#new#tearOff'](T, _controller) {
        if (_controller == null) dart.nullFailed(I[76], 833, 26, "_controller");
        return new (async._ControllerStream$(T)).new(_controller);
      }
      [_createSubscription](onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[76], 836, 51, "cancelOnError");
        return this[_controller$][_subscribe](onData, onError, onDone, cancelOnError);
      }
      get hashCode() {
        return (dart.notNull(dart.hashCode(this[_controller$])) ^ 892482866) >>> 0;
      }
      _equals(other) {
        if (other == null) return false;
        if (this === other) return true;
        return T$0._ControllerStream()[_is](other) && other[_controller$] == this[_controller$];
      }
    }
    (_ControllerStream.new = function(_controller) {
      if (_controller == null) dart.nullFailed(I[76], 833, 26, "_controller");
      this[_controller$] = _controller;
      this.$ti = this.$ti || __t$_ControllerStreamOfT();
      dart.global.Object.getPrototypeOf(_ControllerStream).new.call(this);
      ;
    }).prototype = _ControllerStream.prototype;
    dart.addRtiResources(_ControllerStream, ["async|_ControllerStream"]);
    dart.setLibraryUri(_ControllerStream, I[39]);
    dart.setFieldSignature(_ControllerStream, () => dart.global.Object.setPrototypeOf({[_controller$]: {type: __t$_StreamControllerLifecycleOfT(), isConst: false, isFinal: false, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_ControllerStream))));
    dart.defineExtensionMethods(_ControllerStream, ['_equals']);
    dart.defineExtensionAccessors(_ControllerStream, ['hashCode']);
    return _ControllerStream;
  });
  async._ControllerStream = async._ControllerStream$();
  async._BroadcastStream$ = dart.generic(T => {
    var __t$_BroadcastStreamOfT = () => (__t$_BroadcastStreamOfT = dart.constFn(T[_eval]("async|_BroadcastStream<0>")))();
    var __t$_ControllerStreamOfT = () => (__t$_ControllerStreamOfT = dart.constFn(async._ControllerStream$(T)))();
    class _BroadcastStream extends __t$_ControllerStreamOfT() {
      static ['_#new#tearOff'](T, controller) {
        if (controller == null) dart.nullFailed(I[75], 8, 50, "controller");
        return new (async._BroadcastStream$(T)).new(controller);
      }
      get isBroadcast() {
        return true;
      }
    }
    (_BroadcastStream.new = function(controller) {
      if (controller == null) dart.nullFailed(I[75], 8, 50, "controller");
      this.$ti = this.$ti || __t$_BroadcastStreamOfT();
      dart.global.Object.getPrototypeOf(_BroadcastStream).new.call(this, controller);
      ;
    }).prototype = _BroadcastStream.prototype;
    dart.addRtiResources(_BroadcastStream, ["async|_BroadcastStream"]);
    dart.setLibraryUri(_BroadcastStream, I[39]);
    return _BroadcastStream;
  });
  async._BroadcastStream = async._BroadcastStream$();
  var _next$0 = dart.privateName(async, "_BroadcastSubscription._next");
  var _previous$0 = dart.privateName(async, "_BroadcastSubscription._previous");
  var _eventState = dart.privateName(async, "_eventState");
  var _next$1 = dart.privateName(async, "_next");
  var _previous$1 = dart.privateName(async, "_previous");
  var _expectsEvent = dart.privateName(async, "_expectsEvent");
  var _toggleEventId = dart.privateName(async, "_toggleEventId");
  var _isFiring = dart.privateName(async, "_isFiring");
  var _setRemoveAfterFiring = dart.privateName(async, "_setRemoveAfterFiring");
  var _removeAfterFiring = dart.privateName(async, "_removeAfterFiring");
  var _onPause = dart.privateName(async, "_onPause");
  var _onResume = dart.privateName(async, "_onResume");
  var _recordCancel = dart.privateName(async, "_recordCancel");
  var _onCancel = dart.privateName(async, "_onCancel");
  var _recordPause = dart.privateName(async, "_recordPause");
  var _recordResume = dart.privateName(async, "_recordResume");
  var _cancelFuture = dart.privateName(async, "_cancelFuture");
  var _pending = dart.privateName(async, "_pending");
  var _zone$ = dart.privateName(async, "_zone");
  var _state = dart.privateName(async, "_state");
  var _onData$ = dart.privateName(async, "_onData");
  var _onError$ = dart.privateName(async, "_onError");
  var _onDone = dart.privateName(async, "_onDone");
  var _setPendingEvents = dart.privateName(async, "_setPendingEvents");
  var _isCanceled = dart.privateName(async, "_isCanceled");
  var _isPaused = dart.privateName(async, "_isPaused");
  var _isInputPaused = dart.privateName(async, "_isInputPaused");
  var _inCallback = dart.privateName(async, "_inCallback");
  var _guardCallback = dart.privateName(async, "_guardCallback");
  var _decrementPauseCount = dart.privateName(async, "_decrementPauseCount");
  var _hasPending = dart.privateName(async, "_hasPending");
  var _mayResumeInput = dart.privateName(async, "_mayResumeInput");
  var _cancel = dart.privateName(async, "_cancel");
  var _isClosed = dart.privateName(async, "_isClosed");
  var _waitsForCancel = dart.privateName(async, "_waitsForCancel");
  var _canFire = dart.privateName(async, "_canFire");
  var _cancelOnError = dart.privateName(async, "_cancelOnError");
  var _sendData = dart.privateName(async, "_sendData");
  var _addPending = dart.privateName(async, "_addPending");
  var _sendError = dart.privateName(async, "_sendError");
  var _sendDone = dart.privateName(async, "_sendDone");
  var _close = dart.privateName(async, "_close");
  var _checkState = dart.privateName(async, "_checkState");
  async._BufferingStreamSubscription$ = dart.generic(T => {
    var __t$_BufferingStreamSubscriptionOfT = () => (__t$_BufferingStreamSubscriptionOfT = dart.constFn(T[_eval]("async|_BufferingStreamSubscription<0>")))();
    var __t$_PendingEventsNOfT = () => (__t$_PendingEventsNOfT = dart.constFn(T[_eval]("async|_PendingEvents<0>?")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(T[_eval]("~(~(0)?)")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$_DelayedDataOfT = () => (__t$_DelayedDataOfT = dart.constFn(async._DelayedData$(T)))();
    var __t$_PendingEventsOfT = () => (__t$_PendingEventsOfT = dart.constFn(async._PendingEvents$(T)))();
    class _BufferingStreamSubscription extends core.Object {
      static ['_#new#tearOff'](T, onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[77], 121, 28, "cancelOnError");
        return new (async._BufferingStreamSubscription$(T)).new(onData, onError, onDone, cancelOnError);
      }
      static ['_#zoned#tearOff'](T, _zone, onData, onError, onDone, cancelOnError) {
        if (_zone == null) dart.nullFailed(I[77], 124, 43, "_zone");
        if (cancelOnError == null) dart.nullFailed(I[77], 125, 47, "cancelOnError");
        return new (async._BufferingStreamSubscription$(T)).zoned(_zone, onData, onError, onDone, cancelOnError);
      }
      [_setPendingEvents](pendingEvents) {
        __t$_PendingEventsNOfT()[_as](pendingEvents);
        if (!(this[_pending] == null)) dart.assertFailed(null, I[77], 137, 12, "_pending == null");
        if (pendingEvents == null) return;
        this[_pending] = pendingEvents;
        if (!dart.test(pendingEvents.isEmpty)) {
          this[_state] = (dart.notNull(this[_state]) | 128) >>> 0;
          pendingEvents.schedule(this);
        }
      }
      onData(handleData) {
        this[_onData$] = async._BufferingStreamSubscription._registerDataHandler(T, this[_zone$], handleData);
      }
      static _registerDataHandler(T, zone, handleData) {
        let t$3678;
        if (zone == null) dart.nullFailed(I[77], 153, 12, "zone");
        return zone.registerUnaryCallback(T$.void(), T, (t$3678 = handleData, t$3678 == null ? C[76] || CT.C76 : t$3678));
      }
      onError(handleError) {
        if (handleError == null) {
          this[_state] = (dart.notNull(this[_state]) & ~32 >>> 0) >>> 0;
        } else {
          this[_state] = (dart.notNull(this[_state]) | 32) >>> 0;
        }
        this[_onError$] = async._BufferingStreamSubscription._registerErrorHandler(this[_zone$], handleError);
      }
      static _registerErrorHandler(zone, handleError) {
        if (zone == null) dart.nullFailed(I[77], 166, 46, "zone");
        handleError == null ? handleError = C[77] || CT.C77 : null;
        if (T$.ObjectAndStackTraceTovoid()[_is](handleError)) {
          return zone.registerBinaryCallback(T$.dynamic(), T$.Object(), T$.StackTrace(), handleError);
        }
        if (T$.ObjectTovoid()[_is](handleError)) {
          return zone.registerUnaryCallback(T$.dynamic(), T$.Object(), handleError);
        }
        dart.throw(new core.ArgumentError.new("handleError callback must take either an Object (the error), or both an Object (the error) and a StackTrace."));
      }
      onDone(handleDone) {
        this[_onDone] = async._BufferingStreamSubscription._registerDoneHandler(this[_zone$], handleDone);
      }
      static _registerDoneHandler(zone, handleDone) {
        let t$3678;
        if (zone == null) dart.nullFailed(I[77], 185, 12, "zone");
        return zone.registerCallback(T$.void(), (t$3678 = handleDone, t$3678 == null ? C[78] || CT.C78 : t$3678));
      }
      pause(resumeSignal = null) {
        let t$3678, t$3678$;
        if (dart.test(this[_isCanceled])) return;
        let wasPaused = this[_isPaused];
        let wasInputPaused = this[_isInputPaused];
        this[_state] = (dart.notNull(this[_state]) + 256 | 4) >>> 0;
        t$3678 = resumeSignal;
        t$3678 == null ? null : t$3678.whenComplete(dart.bind(this, 'resume'));
        if (!dart.test(wasPaused)) {
          t$3678$ = this[_pending];
          t$3678$ == null ? null : t$3678$.cancelSchedule();
        }
        if (!dart.test(wasInputPaused) && !dart.test(this[_inCallback])) this[_guardCallback](dart.bind(this, _onPause));
      }
      resume() {
        if (dart.test(this[_isCanceled])) return;
        if (dart.test(this[_isPaused])) {
          this[_decrementPauseCount]();
          if (!dart.test(this[_isPaused])) {
            if (dart.test(this[_hasPending]) && !dart.test(dart.nullCheck(this[_pending]).isEmpty)) {
              dart.nullCheck(this[_pending]).schedule(this);
            } else {
              if (!dart.test(this[_mayResumeInput])) dart.assertFailed(null, I[77], 209, 18, "_mayResumeInput");
              this[_state] = (dart.notNull(this[_state]) & ~4 >>> 0) >>> 0;
              if (!dart.test(this[_inCallback])) this[_guardCallback](dart.bind(this, _onResume));
            }
          }
        }
      }
      cancel() {
        let t$3678;
        this[_state] = (dart.notNull(this[_state]) & ~16 >>> 0) >>> 0;
        if (!dart.test(this[_isCanceled])) {
          this[_cancel]();
        }
        t$3678 = this[_cancelFuture];
        return t$3678 == null ? async.Future._nullFuture : t$3678;
      }
      asFuture(E, futureValue = null) {
        let resultValue = null;
        if (futureValue == null) {
          if (!dart.test(_internal.typeAcceptsNull(E))) {
            dart.throw(new core.ArgumentError.notNull("futureValue"));
          }
          resultValue = E[_as](futureValue);
        } else {
          resultValue = futureValue;
        }
        let result = new (async._Future$(E)).new();
        this[_onDone] = dart.fn(() => {
          result[_complete](resultValue);
        }, T$.VoidTovoid());
        this[_state] = (dart.notNull(this[_state]) | 32) >>> 0;
        this[_onError$] = dart.fn((error, stackTrace) => {
          if (error == null) dart.nullFailed(I[77], 244, 24, "error");
          if (stackTrace == null) dart.nullFailed(I[77], 244, 42, "stackTrace");
          let cancelFuture = this.cancel();
          if (cancelFuture != async.Future._nullFuture) {
            cancelFuture.whenComplete(dart.fn(() => {
              result[_completeError](error, stackTrace);
            }, T$0.VoidToNull()));
          } else {
            result[_completeError](error, stackTrace);
          }
        }, T$.ObjectAndStackTraceToNull());
        return result;
      }
      get [_isInputPaused]() {
        return (dart.notNull(this[_state]) & 4) !== 0;
      }
      get [_isClosed]() {
        return (dart.notNull(this[_state]) & 2) !== 0;
      }
      get [_isCanceled]() {
        return (dart.notNull(this[_state]) & 8) !== 0;
      }
      get [_waitsForCancel]() {
        return (dart.notNull(this[_state]) & 16) !== 0;
      }
      get [_inCallback]() {
        return (dart.notNull(this[_state]) & 64) !== 0;
      }
      get [_hasPending]() {
        return (dart.notNull(this[_state]) & 128) !== 0;
      }
      get [_isPaused]() {
        return dart.notNull(this[_state]) >= 256;
      }
      get [_canFire]() {
        return dart.notNull(this[_state]) < 64;
      }
      get [_mayResumeInput]() {
        let t$3678, t$3678$;
        return !dart.test(this[_isPaused]) && dart.test((t$3678$ = (t$3678 = this[_pending], t$3678 == null ? null : t$3678.isEmpty), t$3678$ == null ? true : t$3678$));
      }
      get [_cancelOnError]() {
        return (dart.notNull(this[_state]) & 1) !== 0;
      }
      get isPaused() {
        return this[_isPaused];
      }
      [_cancel]() {
        this[_state] = (dart.notNull(this[_state]) | 8) >>> 0;
        if (dart.test(this[_hasPending])) {
          dart.nullCheck(this[_pending]).cancelSchedule();
        }
        if (!dart.test(this[_inCallback])) this[_pending] = null;
        this[_cancelFuture] = this[_onCancel]();
      }
      [_decrementPauseCount]() {
        if (!dart.test(this[_isPaused])) dart.assertFailed(null, I[77], 287, 12, "_isPaused");
        this[_state] = dart.notNull(this[_state]) - 256;
      }
      [_add](data) {
        T[_as](data);
        if (!!dart.test(this[_isClosed])) dart.assertFailed(null, I[77], 294, 12, "!_isClosed");
        if (dart.test(this[_isCanceled])) return;
        if (dart.test(this[_canFire])) {
          this[_sendData](data);
        } else {
          this[_addPending](new (__t$_DelayedDataOfT()).new(data));
        }
      }
      [_addError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[77], 303, 25, "error");
        if (stackTrace == null) dart.nullFailed(I[77], 303, 43, "stackTrace");
        if (dart.test(this[_isCanceled])) return;
        if (dart.test(this[_canFire])) {
          this[_sendError](error, stackTrace);
        } else {
          this[_addPending](new async._DelayedError.new(error, stackTrace));
        }
      }
      [_close]() {
        if (!!dart.test(this[_isClosed])) dart.assertFailed(null, I[77], 313, 12, "!_isClosed");
        if (dart.test(this[_isCanceled])) return;
        this[_state] = (dart.notNull(this[_state]) | 2) >>> 0;
        if (dart.test(this[_canFire])) {
          this[_sendDone]();
        } else {
          this[_addPending](C[79] || CT.C79);
        }
      }
      [_onPause]() {
        if (!dart.test(this[_isInputPaused])) dart.assertFailed(null, I[77], 328, 12, "_isInputPaused");
      }
      [_onResume]() {
        if (!!dart.test(this[_isInputPaused])) dart.assertFailed(null, I[77], 332, 12, "!_isInputPaused");
      }
      [_onCancel]() {
        if (!dart.test(this[_isCanceled])) dart.assertFailed(null, I[77], 336, 12, "_isCanceled");
        return null;
      }
      [_addPending](event) {
        let t$3678;
        if (event == null) dart.nullFailed(I[77], 346, 34, "event");
        let pending = (t$3678 = this[_pending], t$3678 == null ? this[_pending] = new (__t$_PendingEventsOfT()).new() : t$3678);
        pending.add(event);
        if (!dart.test(this[_hasPending])) {
          this[_state] = (dart.notNull(this[_state]) | 128) >>> 0;
          if (!dart.test(this[_isPaused])) {
            pending.schedule(this);
          }
        }
      }
      [_sendData](data) {
        if (!!dart.test(this[_isCanceled])) dart.assertFailed(null, I[77], 360, 12, "!_isCanceled");
        if (!!dart.test(this[_isPaused])) dart.assertFailed(null, I[77], 361, 12, "!_isPaused");
        if (!!dart.test(this[_inCallback])) dart.assertFailed(null, I[77], 362, 12, "!_inCallback");
        let wasInputPaused = this[_isInputPaused];
        this[_state] = (dart.notNull(this[_state]) | 64) >>> 0;
        this[_zone$].runUnaryGuarded(T, this[_onData$], data);
        this[_state] = (dart.notNull(this[_state]) & ~64 >>> 0) >>> 0;
        this[_checkState](wasInputPaused);
      }
      [_sendError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[77], 370, 26, "error");
        if (stackTrace == null) dart.nullFailed(I[77], 370, 44, "stackTrace");
        if (!!dart.test(this[_isCanceled])) dart.assertFailed(null, I[77], 371, 12, "!_isCanceled");
        if (!!dart.test(this[_isPaused])) dart.assertFailed(null, I[77], 372, 12, "!_isPaused");
        if (!!dart.test(this[_inCallback])) dart.assertFailed(null, I[77], 373, 12, "!_inCallback");
        let wasInputPaused = this[_isInputPaused];
        const sendError = () => {
          if (dart.test(this[_isCanceled]) && !dart.test(this[_waitsForCancel])) return;
          this[_state] = (dart.notNull(this[_state]) | 64) >>> 0;
          let onError = this[_onError$];
          if (T$.ObjectAndStackTraceTovoid()[_is](onError)) {
            this[_zone$].runBinaryGuarded(T$.Object(), T$.StackTrace(), onError, error, stackTrace);
          } else {
            this[_zone$].runUnaryGuarded(T$.Object(), T$.ObjectTovoid()[_as](this[_onError$]), error);
          }
          this[_state] = (dart.notNull(this[_state]) & ~64 >>> 0) >>> 0;
        };
        dart.fn(sendError, T$.VoidTovoid());
        if (dart.test(this[_cancelOnError])) {
          this[_state] = (dart.notNull(this[_state]) | 16) >>> 0;
          this[_cancel]();
          let cancelFuture = this[_cancelFuture];
          if (cancelFuture != null && cancelFuture != async.Future._nullFuture) {
            cancelFuture.whenComplete(sendError);
          } else {
            sendError();
          }
        } else {
          sendError();
          this[_checkState](wasInputPaused);
        }
      }
      [_sendDone]() {
        if (!!dart.test(this[_isCanceled])) dart.assertFailed(null, I[77], 409, 12, "!_isCanceled");
        if (!!dart.test(this[_isPaused])) dart.assertFailed(null, I[77], 410, 12, "!_isPaused");
        if (!!dart.test(this[_inCallback])) dart.assertFailed(null, I[77], 411, 12, "!_inCallback");
        const sendDone = () => {
          if (!dart.test(this[_waitsForCancel])) return;
          this[_state] = (dart.notNull(this[_state]) | (8 | 2 | 64) >>> 0) >>> 0;
          this[_zone$].runGuarded(this[_onDone]);
          this[_state] = (dart.notNull(this[_state]) & ~64 >>> 0) >>> 0;
        };
        dart.fn(sendDone, T$.VoidTovoid());
        this[_cancel]();
        this[_state] = (dart.notNull(this[_state]) | 16) >>> 0;
        let cancelFuture = this[_cancelFuture];
        if (cancelFuture != null && cancelFuture != async.Future._nullFuture) {
          cancelFuture.whenComplete(sendDone);
        } else {
          sendDone();
        }
      }
      [_guardCallback](callback) {
        if (callback == null) dart.nullFailed(I[77], 437, 39, "callback");
        if (!!dart.test(this[_inCallback])) dart.assertFailed(null, I[77], 438, 12, "!_inCallback");
        let wasInputPaused = this[_isInputPaused];
        this[_state] = (dart.notNull(this[_state]) | 64) >>> 0;
        callback();
        this[_state] = (dart.notNull(this[_state]) & ~64 >>> 0) >>> 0;
        this[_checkState](wasInputPaused);
      }
      [_checkState](wasInputPaused) {
        if (wasInputPaused == null) dart.nullFailed(I[77], 454, 25, "wasInputPaused");
        if (!!dart.test(this[_inCallback])) dart.assertFailed(null, I[77], 455, 12, "!_inCallback");
        if (dart.test(this[_hasPending]) && dart.test(dart.nullCheck(this[_pending]).isEmpty)) {
          this[_state] = (dart.notNull(this[_state]) & ~128 >>> 0) >>> 0;
          if (dart.test(this[_isInputPaused]) && dart.test(this[_mayResumeInput])) {
            this[_state] = (dart.notNull(this[_state]) & ~4 >>> 0) >>> 0;
          }
        }
        while (true) {
          if (dart.test(this[_isCanceled])) {
            this[_pending] = null;
            return;
          }
          let isInputPaused = this[_isInputPaused];
          if (wasInputPaused == isInputPaused) break;
          this[_state] = (dart.notNull(this[_state]) ^ 64) >>> 0;
          if (dart.test(isInputPaused)) {
            this[_onPause]();
          } else {
            this[_onResume]();
          }
          this[_state] = (dart.notNull(this[_state]) & ~64 >>> 0) >>> 0;
          wasInputPaused = isInputPaused;
        }
        if (dart.test(this[_hasPending]) && !dart.test(this[_isPaused])) {
          dart.nullCheck(this[_pending]).schedule(this);
        }
      }
    }
    (_BufferingStreamSubscription.new = function(onData, onError, onDone, cancelOnError) {
      if (cancelOnError == null) dart.nullFailed(I[77], 121, 28, "cancelOnError");
      _BufferingStreamSubscription.zoned.call(this, async.Zone.current, onData, onError, onDone, cancelOnError);
    }).prototype = _BufferingStreamSubscription.prototype;
    (_BufferingStreamSubscription.zoned = function(_zone, onData, onError, onDone, cancelOnError) {
      if (_zone == null) dart.nullFailed(I[77], 124, 43, "_zone");
      if (cancelOnError == null) dart.nullFailed(I[77], 125, 47, "cancelOnError");
      this[_cancelFuture] = null;
      this[_pending] = null;
      this[_zone$] = _zone;
      this[_state] = ((dart.test(cancelOnError) ? 1 : 0) | (onError != null ? 32 : 0)) >>> 0;
      this[_onData$] = async._BufferingStreamSubscription._registerDataHandler(T, _zone, onData);
      this[_onError$] = async._BufferingStreamSubscription._registerErrorHandler(_zone, onError);
      this[_onDone] = async._BufferingStreamSubscription._registerDoneHandler(_zone, onDone);
      this.$ti = this.$ti || __t$_BufferingStreamSubscriptionOfT();
      ;
    }).prototype = _BufferingStreamSubscription.prototype;
    dart.addRtiResources(_BufferingStreamSubscription, ["async|_BufferingStreamSubscription", "async|StreamSubscription", "async|_EventSink", "async|_EventDispatch"]);
    dart.setMethodSignature(_BufferingStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [_setPendingEvents]: T$.ObjectNTovoid(),
      onData: __t$FnTovoid(),
      onError: T$.FunctionNTovoid(),
      onDone: T$.FnTovoid$9(),
      pause: T$0.FutureNOfvoidTovoid(),
      resume: T$.VoidTovoid(),
      cancel: T$.VoidToFuture(),
      asFuture: T$.ENToFutureOfE(),
      [_cancel]: T$.VoidTovoid(),
      [_decrementPauseCount]: T$.VoidTovoid(),
      [_add]: T$.ObjectNTovoid(),
      [_addError]: T$.ObjectAndStackTraceTovoid(),
      [_close]: T$.VoidTovoid(),
      [_onPause]: T$.VoidTovoid(),
      [_onResume]: T$.VoidTovoid(),
      [_onCancel]: T$0.VoidToFutureNOfvoid(),
      [_addPending]: T$0._DelayedEventTovoid(),
      [_sendData]: __t$TTovoid(),
      [_sendError]: T$.ObjectAndStackTraceTovoid(),
      [_sendDone]: T$.VoidTovoid(),
      [_guardCallback]: T$1.FnTovoid$18(),
      [_checkState]: T$1.boolTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_BufferingStreamSubscription))));
    dart.setMethodsDefaultTypeArgSignature(_BufferingStreamSubscription, () => dart.global.Object.setPrototypeOf({asFuture: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_BufferingStreamSubscription))));
    dart.setStaticMethodSignature(_BufferingStreamSubscription, () => ['_registerDataHandler', '_registerErrorHandler', '_registerDoneHandler']);
    dart.setGetterSignature(_BufferingStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [_isInputPaused]: T$.bool(),
      [_isClosed]: T$.bool(),
      [_isCanceled]: T$.bool(),
      [_waitsForCancel]: T$.bool(),
      [_inCallback]: T$.bool(),
      [_hasPending]: T$.bool(),
      [_isPaused]: T$.bool(),
      [_canFire]: T$.bool(),
      [_mayResumeInput]: T$.bool(),
      [_cancelOnError]: T$.bool(),
      isPaused: T$.bool()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_BufferingStreamSubscription))));
    dart.setLibraryUri(_BufferingStreamSubscription, I[39]);
    dart.setFieldSignature(_BufferingStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [_onData$]: {type: __t$TTovoid(), isConst: false, isFinal: false},
      [_onError$]: {type: T$.Function(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_onDone]: {type: T$.VoidTovoid(), isConst: false, isFinal: false},
      [_zone$]: {type: T$.Zone(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_state]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_cancelFuture]: {type: T$1.FutureN(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_pending]: {type: __t$_PendingEventsNOfT(), isConst: false, isFinal: false, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_BufferingStreamSubscription))));
    dart.setStaticFieldSignature(_BufferingStreamSubscription, () => ['_STATE_CANCEL_ON_ERROR', '_STATE_CLOSED', '_STATE_INPUT_PAUSED', '_STATE_CANCELED', '_STATE_WAIT_FOR_CANCEL', '_STATE_HAS_ERROR_HANDLER', '_STATE_IN_CALLBACK', '_STATE_HAS_PENDING', '_STATE_PAUSE_COUNT']);
    return _BufferingStreamSubscription;
  });
  async._BufferingStreamSubscription = async._BufferingStreamSubscription$();
  dart.defineLazy(async._BufferingStreamSubscription, {
    /*async._BufferingStreamSubscription._STATE_CANCEL_ON_ERROR*/get _STATE_CANCEL_ON_ERROR() {
      return 1;
    },
    /*async._BufferingStreamSubscription._STATE_CLOSED*/get _STATE_CLOSED() {
      return 2;
    },
    /*async._BufferingStreamSubscription._STATE_INPUT_PAUSED*/get _STATE_INPUT_PAUSED() {
      return 4;
    },
    /*async._BufferingStreamSubscription._STATE_CANCELED*/get _STATE_CANCELED() {
      return 8;
    },
    /*async._BufferingStreamSubscription._STATE_WAIT_FOR_CANCEL*/get _STATE_WAIT_FOR_CANCEL() {
      return 16;
    },
    /*async._BufferingStreamSubscription._STATE_HAS_ERROR_HANDLER*/get _STATE_HAS_ERROR_HANDLER() {
      return 32;
    },
    /*async._BufferingStreamSubscription._STATE_IN_CALLBACK*/get _STATE_IN_CALLBACK() {
      return 64;
    },
    /*async._BufferingStreamSubscription._STATE_HAS_PENDING*/get _STATE_HAS_PENDING() {
      return 128;
    },
    /*async._BufferingStreamSubscription._STATE_PAUSE_COUNT*/get _STATE_PAUSE_COUNT() {
      return 256;
    }
  }, false);
  async._ControllerSubscription$ = dart.generic(T => {
    var __t$_ControllerSubscriptionOfT = () => (__t$_ControllerSubscriptionOfT = dart.constFn(T[_eval]("async|_ControllerSubscription<0>")))();
    var __t$_StreamControllerLifecycleOfT = () => (__t$_StreamControllerLifecycleOfT = dart.constFn(T[_eval]("async|_StreamControllerLifecycle<0>")))();
    var __t$_BufferingStreamSubscriptionOfT = () => (__t$_BufferingStreamSubscriptionOfT = dart.constFn(async._BufferingStreamSubscription$(T)))();
    class _ControllerSubscription extends __t$_BufferingStreamSubscriptionOfT() {
      static ['_#new#tearOff'](T, _controller, onData, onError, onDone, cancelOnError) {
        if (_controller == null) dart.nullFailed(I[76], 855, 32, "_controller");
        if (cancelOnError == null) dart.nullFailed(I[76], 856, 47, "cancelOnError");
        return new (async._ControllerSubscription$(T)).new(_controller, onData, onError, onDone, cancelOnError);
      }
      [_onCancel]() {
        return this[_controller$][_recordCancel](this);
      }
      [_onPause]() {
        this[_controller$][_recordPause](this);
      }
      [_onResume]() {
        this[_controller$][_recordResume](this);
      }
    }
    (_ControllerSubscription.new = function(_controller, onData, onError, onDone, cancelOnError) {
      if (_controller == null) dart.nullFailed(I[76], 855, 32, "_controller");
      if (cancelOnError == null) dart.nullFailed(I[76], 856, 47, "cancelOnError");
      this[_controller$] = _controller;
      this.$ti = this.$ti || __t$_ControllerSubscriptionOfT();
      dart.global.Object.getPrototypeOf(_ControllerSubscription).new.call(this, onData, onError, onDone, cancelOnError);
      ;
    }).prototype = _ControllerSubscription.prototype;
    dart.addRtiResources(_ControllerSubscription, ["async|_ControllerSubscription"]);
    dart.setLibraryUri(_ControllerSubscription, I[39]);
    dart.setFieldSignature(_ControllerSubscription, () => dart.global.Object.setPrototypeOf({[_controller$]: {type: __t$_StreamControllerLifecycleOfT(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_ControllerSubscription))));
    return _ControllerSubscription;
  });
  async._ControllerSubscription = async._ControllerSubscription$();
  async._BroadcastSubscription$ = dart.generic(T => {
    var __t$_BroadcastSubscriptionOfT = () => (__t$_BroadcastSubscriptionOfT = dart.constFn(T[_eval]("async|_BroadcastSubscription<0>")))();
    var __t$_BroadcastSubscriptionNOfT = () => (__t$_BroadcastSubscriptionNOfT = dart.constFn(T[_eval]("async|_BroadcastSubscription<0>?")))();
    var __t$_ControllerSubscriptionOfT = () => (__t$_ControllerSubscriptionOfT = dart.constFn(async._ControllerSubscription$(T)))();
    class _BroadcastSubscription extends __t$_ControllerSubscriptionOfT() {
      get [_next$1]() {
        return this[_next$0];
      }
      set [_next$1](value) {
        this[_next$0] = __t$_BroadcastSubscriptionNOfT()[_as](value);
      }
      get [_previous$1]() {
        return this[_previous$0];
      }
      set [_previous$1](value) {
        this[_previous$0] = __t$_BroadcastSubscriptionNOfT()[_as](value);
      }
      static ['_#new#tearOff'](T, controller, onData, onError, onDone, cancelOnError) {
        if (controller == null) dart.nullFailed(I[75], 27, 37, "controller");
        if (cancelOnError == null) dart.nullFailed(I[75], 31, 12, "cancelOnError");
        return new (async._BroadcastSubscription$(T)).new(controller, onData, onError, onDone, cancelOnError);
      }
      [_expectsEvent](eventId) {
        if (eventId == null) dart.nullFailed(I[75], 36, 26, "eventId");
        return (dart.notNull(this[_eventState]) & 1) >>> 0 === eventId;
      }
      [_toggleEventId]() {
        this[_eventState] = (dart.notNull(this[_eventState]) ^ 1) >>> 0;
      }
      get [_isFiring]() {
        return (dart.notNull(this[_eventState]) & 2) !== 0;
      }
      [_setRemoveAfterFiring]() {
        if (!dart.test(this[_isFiring])) dart.assertFailed(null, I[75], 45, 12, "_isFiring");
        this[_eventState] = (dart.notNull(this[_eventState]) | 4) >>> 0;
      }
      get [_removeAfterFiring]() {
        return (dart.notNull(this[_eventState]) & 4) !== 0;
      }
      [_onPause]() {
      }
      [_onResume]() {
      }
    }
    (_BroadcastSubscription.new = function(controller, onData, onError, onDone, cancelOnError) {
      if (controller == null) dart.nullFailed(I[75], 27, 37, "controller");
      if (cancelOnError == null) dart.nullFailed(I[75], 31, 12, "cancelOnError");
      this[_eventState] = 0;
      this[_next$0] = null;
      this[_previous$0] = null;
      this.$ti = this.$ti || __t$_BroadcastSubscriptionOfT();
      dart.global.Object.getPrototypeOf(_BroadcastSubscription).new.call(this, controller, onData, onError, onDone, cancelOnError);
      this[_next$1] = this[_previous$1] = this;
    }).prototype = _BroadcastSubscription.prototype;
    dart.addRtiResources(_BroadcastSubscription, ["async|_BroadcastSubscription"]);
    dart.setMethodSignature(_BroadcastSubscription, () => dart.global.Object.setPrototypeOf({
      [_expectsEvent]: T$.intTobool(),
      [_toggleEventId]: T$.VoidTovoid(),
      [_setRemoveAfterFiring]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_BroadcastSubscription))));
    dart.setGetterSignature(_BroadcastSubscription, () => dart.global.Object.setPrototypeOf({
      [_isFiring]: T$.bool(),
      [_removeAfterFiring]: T$.bool()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_BroadcastSubscription))));
    dart.setLibraryUri(_BroadcastSubscription, I[39]);
    dart.setFieldSignature(_BroadcastSubscription, () => dart.global.Object.setPrototypeOf({
      [_eventState]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_next$1]: {type: __t$_BroadcastSubscriptionNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_previous$1]: {type: __t$_BroadcastSubscriptionNOfT(), isConst: false, isFinal: false, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_BroadcastSubscription))));
    dart.setStaticFieldSignature(_BroadcastSubscription, () => ['_STATE_EVENT_ID', '_STATE_FIRING', '_STATE_REMOVE_AFTER_FIRING']);
    return _BroadcastSubscription;
  });
  async._BroadcastSubscription = async._BroadcastSubscription$();
  dart.defineLazy(async._BroadcastSubscription, {
    /*async._BroadcastSubscription._STATE_EVENT_ID*/get _STATE_EVENT_ID() {
      return 1;
    },
    /*async._BroadcastSubscription._STATE_FIRING*/get _STATE_FIRING() {
      return 2;
    },
    /*async._BroadcastSubscription._STATE_REMOVE_AFTER_FIRING*/get _STATE_REMOVE_AFTER_FIRING() {
      return 4;
    }
  }, false);
  var _firstSubscription = dart.privateName(async, "_firstSubscription");
  var _lastSubscription = dart.privateName(async, "_lastSubscription");
  var _addStreamState = dart.privateName(async, "_addStreamState");
  var _doneFuture = dart.privateName(async, "_doneFuture");
  var _isEmpty = dart.privateName(async, "_isEmpty");
  var _hasOneListener = dart.privateName(async, "_hasOneListener");
  var _isAddingStream = dart.privateName(async, "_isAddingStream");
  var _mayAddEvent = dart.privateName(async, "_mayAddEvent");
  var _ensureDoneFuture = dart.privateName(async, "_ensureDoneFuture");
  var _addListener = dart.privateName(async, "_addListener");
  var _removeListener = dart.privateName(async, "_removeListener");
  var _callOnCancel = dart.privateName(async, "_callOnCancel");
  var _addEventError = dart.privateName(async, "_addEventError");
  var _forEachListener = dart.privateName(async, "_forEachListener");
  var _mayComplete = dart.privateName(async, "_mayComplete");
  var _asyncComplete = dart.privateName(async, "_asyncComplete");
  async._BroadcastStreamController$ = dart.generic(T => {
    var __t$_BroadcastStreamControllerOfT = () => (__t$_BroadcastStreamControllerOfT = dart.constFn(T[_eval]("async|_BroadcastStreamController<0>")))();
    var __t$_BroadcastSubscriptionOfT = () => (__t$_BroadcastSubscriptionOfT = dart.constFn(T[_eval]("async|_BroadcastSubscription<0>")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$StreamSinkOfT = () => (__t$StreamSinkOfT = dart.constFn(T[_eval]("async|StreamSink<0>")))();
    var __t$_BroadcastSubscriptionOfTTovoid = () => (__t$_BroadcastSubscriptionOfTTovoid = dart.constFn(T[_eval]("~(async|_BroadcastSubscription<0>)")))();
    var __t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT = () => (__t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?,core|Function?,~()?,core|bool)")))();
    var __t$StreamSubscriptionOfTToFutureNOfvoid = () => (__t$StreamSubscriptionOfTToFutureNOfvoid = dart.constFn(T[_eval]("async|Future<~>?(async|StreamSubscription<0>)")))();
    var __t$StreamSubscriptionOfTTovoid = () => (__t$StreamSubscriptionOfTTovoid = dart.constFn(T[_eval]("~(async|StreamSubscription<0>)")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(T[_eval]("~(~(async|_BufferingStreamSubscription<0>))")))();
    var __t$_BroadcastSubscriptionNOfT = () => (__t$_BroadcastSubscriptionNOfT = dart.constFn(T[_eval]("async|_BroadcastSubscription<0>?")))();
    var __t$_AddStreamStateNOfT = () => (__t$_AddStreamStateNOfT = dart.constFn(T[_eval]("async|_AddStreamState<0>?")))();
    var __t$_BroadcastStreamOfT = () => (__t$_BroadcastStreamOfT = dart.constFn(async._BroadcastStream$(T)))();
    var __t$_StreamSinkWrapperOfT = () => (__t$_StreamSinkWrapperOfT = dart.constFn(async._StreamSinkWrapper$(T)))();
    var __t$_DoneStreamSubscriptionOfT = () => (__t$_DoneStreamSubscriptionOfT = dart.constFn(async._DoneStreamSubscription$(T)))();
    var __t$_BroadcastSubscriptionOfT$ = () => (__t$_BroadcastSubscriptionOfT$ = dart.constFn(async._BroadcastSubscription$(T)))();
    var __t$_AddStreamStateOfT = () => (__t$_AddStreamStateOfT = dart.constFn(async._AddStreamState$(T)))();
    class _BroadcastStreamController extends core.Object {
      get onPause() {
        dart.throw(new core.UnsupportedError.new("Broadcast stream controllers do not support pause callbacks"));
      }
      set onPause(onPauseHandler) {
        dart.throw(new core.UnsupportedError.new("Broadcast stream controllers do not support pause callbacks"));
      }
      get onResume() {
        dart.throw(new core.UnsupportedError.new("Broadcast stream controllers do not support pause callbacks"));
      }
      set onResume(onResumeHandler) {
        dart.throw(new core.UnsupportedError.new("Broadcast stream controllers do not support pause callbacks"));
      }
      get stream() {
        return new (__t$_BroadcastStreamOfT()).new(this);
      }
      get sink() {
        return new (__t$_StreamSinkWrapperOfT()).new(this);
      }
      get isClosed() {
        return (dart.notNull(this[_state]) & 4) !== 0;
      }
      get isPaused() {
        return false;
      }
      get hasListener() {
        return !dart.test(this[_isEmpty]);
      }
      get [_hasOneListener]() {
        if (!!dart.test(this[_isEmpty])) dart.assertFailed(null, I[75], 141, 12, "!_isEmpty");
        return this[_firstSubscription] == this[_lastSubscription];
      }
      get [_isFiring]() {
        return (dart.notNull(this[_state]) & 2) !== 0;
      }
      get [_isAddingStream]() {
        return (dart.notNull(this[_state]) & 8) !== 0;
      }
      get [_mayAddEvent]() {
        return dart.notNull(this[_state]) < 4;
      }
      [_ensureDoneFuture]() {
        let t$3678;
        t$3678 = this[_doneFuture];
        return t$3678 == null ? this[_doneFuture] = new (G._FutureOfvoid()).new() : t$3678;
      }
      get [_isEmpty]() {
        return this[_firstSubscription] == null;
      }
      [_addListener](subscription) {
        if (subscription == null) dart.nullFailed(I[75], 159, 47, "subscription");
        if (!(subscription[_next$1] == subscription)) dart.assertFailed(null, I[75], 160, 12, "identical(subscription._next, subscription)");
        subscription[_eventState] = (dart.notNull(this[_state]) & 1) >>> 0;
        let oldLast = this[_lastSubscription];
        this[_lastSubscription] = subscription;
        subscription[_next$1] = null;
        subscription[_previous$1] = oldLast;
        if (oldLast == null) {
          this[_firstSubscription] = subscription;
        } else {
          oldLast[_next$1] = subscription;
        }
      }
      [_removeListener](subscription) {
        if (subscription == null) dart.nullFailed(I[75], 174, 50, "subscription");
        if (!(subscription[_controller$] === this)) dart.assertFailed(null, I[75], 175, 12, "identical(subscription._controller, this)");
        if (!(subscription[_next$1] != subscription)) dart.assertFailed(null, I[75], 176, 12, "!identical(subscription._next, subscription)");
        let previous = subscription[_previous$1];
        let next = subscription[_next$1];
        if (previous == null) {
          this[_firstSubscription] = next;
        } else {
          previous[_next$1] = next;
        }
        if (next == null) {
          this[_lastSubscription] = previous;
        } else {
          next[_previous$1] = previous;
        }
        subscription[_next$1] = subscription[_previous$1] = subscription;
      }
      [_subscribe](onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[75], 198, 28, "cancelOnError");
        if (dart.test(this.isClosed)) {
          return new (__t$_DoneStreamSubscriptionOfT()).new(onDone);
        }
        let subscription = new (__t$_BroadcastSubscriptionOfT$()).new(this, onData, onError, onDone, cancelOnError);
        this[_addListener](subscription);
        if (this[_firstSubscription] == this[_lastSubscription]) {
          async._runGuarded(this.onListen);
        }
        return subscription;
      }
      [_recordCancel](sub) {
        if (sub == null) dart.nullFailed(I[75], 212, 53, "sub");
        let subscription = __t$_BroadcastSubscriptionOfT()[_as](sub);
        if (subscription[_next$1] == subscription) return null;
        if (dart.test(subscription[_isFiring])) {
          subscription[_setRemoveAfterFiring]();
        } else {
          this[_removeListener](subscription);
          if (!dart.test(this[_isFiring]) && dart.test(this[_isEmpty])) {
            this[_callOnCancel]();
          }
        }
        return null;
      }
      [_recordPause](subscription) {
        if (subscription == null) dart.nullFailed(I[75], 229, 43, "subscription");
      }
      [_recordResume](subscription) {
        if (subscription == null) dart.nullFailed(I[75], 230, 44, "subscription");
      }
      [_addEventError]() {
        if (dart.test(this.isClosed)) {
          return new core.StateError.new("Cannot add new events after calling close");
        }
        if (!dart.test(this[_isAddingStream])) dart.assertFailed(null, I[75], 238, 12, "_isAddingStream");
        return new core.StateError.new("Cannot add new events while doing an addStream");
      }
      add(data) {
        T[_as](data);
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_addEventError]());
        this[_sendData](data);
      }
      addError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[75], 247, 24, "error");
        _internal.checkNotNullable(T$.Object(), error, "error");
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_addEventError]());
        let replacement = async.Zone.current.errorCallback(error, stackTrace);
        if (replacement != null) {
          error = replacement.error;
          stackTrace = replacement.stackTrace;
        } else {
          stackTrace == null ? stackTrace = async.AsyncError.defaultStackTrace(error) : null;
        }
        this[_sendError](error, stackTrace);
      }
      close() {
        if (dart.test(this.isClosed)) {
          if (!(this[_doneFuture] != null)) dart.assertFailed(null, I[75], 262, 14, "_doneFuture != null");
          return dart.nullCheck(this[_doneFuture]);
        }
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_addEventError]());
        this[_state] = (dart.notNull(this[_state]) | 4) >>> 0;
        let doneFuture = this[_ensureDoneFuture]();
        this[_sendDone]();
        return doneFuture;
      }
      get done() {
        return this[_ensureDoneFuture]();
      }
      addStream(stream, opts) {
        let t$3678;
        __t$StreamOfT()[_as](stream);
        if (stream == null) dart.nullFailed(I[75], 274, 30, "stream");
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_addEventError]());
        this[_state] = (dart.notNull(this[_state]) | 8) >>> 0;
        let addStreamState = new (__t$_AddStreamStateOfT()).new(this, stream, (t$3678 = cancelOnError, t$3678 == null ? false : t$3678));
        this[_addStreamState] = addStreamState;
        return addStreamState.addStreamFuture;
      }
      [_add](data) {
        this[_sendData](data);
      }
      [_addError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[75], 288, 25, "error");
        if (stackTrace == null) dart.nullFailed(I[75], 288, 43, "stackTrace");
        this[_sendError](error, stackTrace);
      }
      [_close]() {
        if (!dart.test(this[_isAddingStream])) dart.assertFailed(null, I[75], 293, 12, "_isAddingStream");
        let addState = dart.nullCheck(this[_addStreamState]);
        this[_addStreamState] = null;
        this[_state] = (dart.notNull(this[_state]) & ~8 >>> 0) >>> 0;
        addState.complete();
      }
      [_forEachListener](action) {
        let t$3678, t$3678$;
        if (action == null) dart.nullFailed(I[75], 302, 12, "action");
        if (dart.test(this[_isFiring])) {
          dart.throw(new core.StateError.new("Cannot fire new event. Controller is already firing an event"));
        }
        if (dart.test(this[_isEmpty])) return;
        let id = (dart.notNull(this[_state]) & 1) >>> 0;
        this[_state] = (dart.notNull(this[_state]) ^ (1 | 2) >>> 0) >>> 0;
        let subscription = this[_firstSubscription];
        while (subscription != null) {
          if (dart.test(subscription[_expectsEvent](id))) {
            t$3678 = subscription;
            t$3678[_eventState] = (dart.notNull(t$3678[_eventState]) | 2) >>> 0;
            action(subscription);
            subscription[_toggleEventId]();
            let next = subscription[_next$1];
            if (dart.test(subscription[_removeAfterFiring])) {
              this[_removeListener](subscription);
            }
            t$3678$ = subscription;
            t$3678$[_eventState] = (dart.notNull(t$3678$[_eventState]) & ~2 >>> 0) >>> 0;
            subscription = next;
          } else {
            subscription = subscription[_next$1];
          }
        }
        this[_state] = (dart.notNull(this[_state]) & ~2 >>> 0) >>> 0;
        if (dart.test(this[_isEmpty])) {
          this[_callOnCancel]();
        }
      }
      [_callOnCancel]() {
        if (!dart.test(this[_isEmpty])) dart.assertFailed(null, I[75], 342, 12, "_isEmpty");
        if (dart.test(this.isClosed)) {
          let doneFuture = dart.nullCheck(this[_doneFuture]);
          if (dart.test(doneFuture[_mayComplete])) {
            doneFuture[_asyncComplete](null);
          }
        }
        async._runGuarded(this.onCancel);
      }
    }
    (_BroadcastStreamController.new = function(onListen, onCancel) {
      this[_firstSubscription] = null;
      this[_lastSubscription] = null;
      this[_addStreamState] = null;
      this[_doneFuture] = null;
      this.onListen = onListen;
      this.onCancel = onCancel;
      this[_state] = 0;
      this.$ti = this.$ti || __t$_BroadcastStreamControllerOfT();
      ;
    }).prototype = _BroadcastStreamController.prototype;
    dart.addRtiResources(_BroadcastStreamController, ["async|_BroadcastStreamController", "async|_StreamControllerBase", "async|StreamController", "async|_StreamControllerLifecycle", "async|_EventSink", "async|_EventDispatch", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_BroadcastStreamController, () => dart.global.Object.setPrototypeOf({
      [_ensureDoneFuture]: T$1.VoidTo_FutureOfvoid(),
      [_addListener]: __t$_BroadcastSubscriptionOfTTovoid(),
      [_removeListener]: __t$_BroadcastSubscriptionOfTTovoid(),
      [_subscribe]: __t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT(),
      [_recordCancel]: __t$StreamSubscriptionOfTToFutureNOfvoid(),
      [_recordPause]: __t$StreamSubscriptionOfTTovoid(),
      [_recordResume]: __t$StreamSubscriptionOfTTovoid(),
      [_addEventError]: T$0.VoidToError(),
      add: T$.ObjectNTovoid(),
      addError: T$1.ObjectAndStackTraceNTovoid(),
      close: T$.VoidToFutureOfvoid(),
      addStream: T$1.ObjectN__ToFuture(),
      [_add]: __t$TTovoid(),
      [_addError]: T$.ObjectAndStackTraceTovoid(),
      [_close]: T$.VoidTovoid(),
      [_forEachListener]: __t$FnTovoid(),
      [_callOnCancel]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_BroadcastStreamController))));
    dart.setGetterSignature(_BroadcastStreamController, () => dart.global.Object.setPrototypeOf({
      onPause: T$.VoidTovoid(),
      onResume: T$.VoidTovoid(),
      stream: __t$StreamOfT(),
      sink: __t$StreamSinkOfT(),
      isClosed: T$.bool(),
      isPaused: T$.bool(),
      hasListener: T$.bool(),
      [_hasOneListener]: T$.bool(),
      [_isFiring]: T$.bool(),
      [_isAddingStream]: T$.bool(),
      [_mayAddEvent]: T$.bool(),
      [_isEmpty]: T$.bool(),
      done: T$1.FutureOfvoid()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_BroadcastStreamController))));
    dart.setSetterSignature(_BroadcastStreamController, () => dart.global.Object.setPrototypeOf({
      onPause: T$1.VoidToNvoid(),
      onResume: T$1.VoidToNvoid()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(_BroadcastStreamController))));
    dart.setLibraryUri(_BroadcastStreamController, I[39]);
    dart.setFieldSignature(_BroadcastStreamController, () => dart.global.Object.setPrototypeOf({
      onListen: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
      onCancel: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
      [_state]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_firstSubscription]: {type: __t$_BroadcastSubscriptionNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_lastSubscription]: {type: __t$_BroadcastSubscriptionNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_addStreamState]: {type: __t$_AddStreamStateNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_doneFuture]: {type: T$1._FutureNOfvoid(), isConst: false, isFinal: false, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_BroadcastStreamController))));
    dart.setStaticFieldSignature(_BroadcastStreamController, () => ['_STATE_INITIAL', '_STATE_EVENT_ID', '_STATE_FIRING', '_STATE_CLOSED', '_STATE_ADDSTREAM']);
    return _BroadcastStreamController;
  });
  async._BroadcastStreamController = async._BroadcastStreamController$();
  dart.defineLazy(async._BroadcastStreamController, {
    /*async._BroadcastStreamController._STATE_INITIAL*/get _STATE_INITIAL() {
      return 0;
    },
    /*async._BroadcastStreamController._STATE_EVENT_ID*/get _STATE_EVENT_ID() {
      return 1;
    },
    /*async._BroadcastStreamController._STATE_FIRING*/get _STATE_FIRING() {
      return 2;
    },
    /*async._BroadcastStreamController._STATE_CLOSED*/get _STATE_CLOSED() {
      return 4;
    },
    /*async._BroadcastStreamController._STATE_ADDSTREAM*/get _STATE_ADDSTREAM() {
      return 8;
    }
  }, false);
  async._SyncBroadcastStreamController$ = dart.generic(T => {
    var __t$_SyncBroadcastStreamControllerOfT = () => (__t$_SyncBroadcastStreamControllerOfT = dart.constFn(T[_eval]("async|_SyncBroadcastStreamController<0>")))();
    var __t$_BroadcastSubscriptionOfT = () => (__t$_BroadcastSubscriptionOfT = dart.constFn(T[_eval]("async|_BroadcastSubscription<0>")))();
    var __t$_BufferingStreamSubscriptionOfTTovoid = () => (__t$_BufferingStreamSubscriptionOfTTovoid = dart.constFn(T[_eval]("~(async|_BufferingStreamSubscription<0>)")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$_BroadcastStreamControllerOfT = () => (__t$_BroadcastStreamControllerOfT = dart.constFn(async._BroadcastStreamController$(T)))();
    class _SyncBroadcastStreamController extends __t$_BroadcastStreamControllerOfT() {
      static ['_#new#tearOff'](T, onListen, onCancel) {
        return new (async._SyncBroadcastStreamController$(T)).new(onListen, onCancel);
      }
      get [_mayAddEvent]() {
        return dart.test(super[_mayAddEvent]) && !dart.test(this[_isFiring]);
      }
      [_addEventError]() {
        if (dart.test(this[_isFiring])) {
          return new core.StateError.new("Cannot fire new event. Controller is already firing an event");
        }
        return super[_addEventError]();
      }
      [_sendData](data) {
        if (dart.test(this[_isEmpty])) return;
        if (dart.test(this[_hasOneListener])) {
          this[_state] = (dart.notNull(this[_state]) | 2) >>> 0;
          let firstSubscription = __t$_BroadcastSubscriptionOfT()[_as](this[_firstSubscription]);
          firstSubscription[_add](data);
          this[_state] = (dart.notNull(this[_state]) & ~2 >>> 0) >>> 0;
          if (dart.test(this[_isEmpty])) {
            this[_callOnCancel]();
          }
          return;
        }
        this[_forEachListener](dart.fn(subscription => {
          if (subscription == null) dart.nullFailed(I[75], 384, 55, "subscription");
          subscription[_add](data);
        }, __t$_BufferingStreamSubscriptionOfTTovoid()));
      }
      [_sendError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[75], 389, 26, "error");
        if (stackTrace == null) dart.nullFailed(I[75], 389, 44, "stackTrace");
        if (dart.test(this[_isEmpty])) return;
        this[_forEachListener](dart.fn(subscription => {
          if (subscription == null) dart.nullFailed(I[75], 391, 55, "subscription");
          subscription[_addError](error, stackTrace);
        }, __t$_BufferingStreamSubscriptionOfTTovoid()));
      }
      [_sendDone]() {
        if (!dart.test(this[_isEmpty])) {
          this[_forEachListener](dart.fn(subscription => {
            if (subscription == null) dart.nullFailed(I[75], 398, 57, "subscription");
            subscription[_close]();
          }, __t$_BufferingStreamSubscriptionOfTTovoid()));
        } else {
          if (!(this[_doneFuture] != null && dart.test(dart.nullCheck(this[_doneFuture])[_mayComplete]))) dart.assertFailed(null, I[75], 402, 14, "_doneFuture != null && _doneFuture!._mayComplete");
          dart.nullCheck(this[_doneFuture])[_asyncComplete](null);
        }
      }
    }
    (_SyncBroadcastStreamController.new = function(onListen, onCancel) {
      this.$ti = this.$ti || __t$_SyncBroadcastStreamControllerOfT();
      dart.global.Object.getPrototypeOf(_SyncBroadcastStreamController).new.call(this, onListen, onCancel);
      ;
    }).prototype = _SyncBroadcastStreamController.prototype;
    dart.addRtiResources(_SyncBroadcastStreamController, ["async|_SyncBroadcastStreamController", "async|SynchronousStreamController", "async|StreamController", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_SyncBroadcastStreamController, () => dart.global.Object.setPrototypeOf({
      [_sendData]: __t$TTovoid(),
      [_sendError]: T$.ObjectAndStackTraceTovoid(),
      [_sendDone]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SyncBroadcastStreamController))));
    dart.setLibraryUri(_SyncBroadcastStreamController, I[39]);
    return _SyncBroadcastStreamController;
  });
  async._SyncBroadcastStreamController = async._SyncBroadcastStreamController$();
  async._AsyncBroadcastStreamController$ = dart.generic(T => {
    var __t$_AsyncBroadcastStreamControllerOfT = () => (__t$_AsyncBroadcastStreamControllerOfT = dart.constFn(T[_eval]("async|_AsyncBroadcastStreamController<0>")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$_DelayedDataOfT = () => (__t$_DelayedDataOfT = dart.constFn(async._DelayedData$(T)))();
    var __t$_BroadcastStreamControllerOfT = () => (__t$_BroadcastStreamControllerOfT = dart.constFn(async._BroadcastStreamController$(T)))();
    class _AsyncBroadcastStreamController extends __t$_BroadcastStreamControllerOfT() {
      static ['_#new#tearOff'](T, onListen, onCancel) {
        return new (async._AsyncBroadcastStreamController$(T)).new(onListen, onCancel);
      }
      [_sendData](data) {
        for (let subscription = this[_firstSubscription]; subscription != null; subscription = subscription[_next$1]) {
          subscription[_addPending](new (__t$_DelayedDataOfT()).new(data));
        }
      }
      [_sendError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[75], 422, 26, "error");
        if (stackTrace == null) dart.nullFailed(I[75], 422, 44, "stackTrace");
        for (let subscription = this[_firstSubscription]; subscription != null; subscription = subscription[_next$1]) {
          subscription[_addPending](new async._DelayedError.new(error, stackTrace));
        }
      }
      [_sendDone]() {
        if (!dart.test(this[_isEmpty])) {
          for (let subscription = this[_firstSubscription]; subscription != null; subscription = subscription[_next$1]) {
            subscription[_addPending](C[79] || CT.C79);
          }
        } else {
          if (!(this[_doneFuture] != null && dart.test(dart.nullCheck(this[_doneFuture])[_mayComplete]))) dart.assertFailed(null, I[75], 438, 14, "_doneFuture != null && _doneFuture!._mayComplete");
          dart.nullCheck(this[_doneFuture])[_asyncComplete](null);
        }
      }
    }
    (_AsyncBroadcastStreamController.new = function(onListen, onCancel) {
      this.$ti = this.$ti || __t$_AsyncBroadcastStreamControllerOfT();
      dart.global.Object.getPrototypeOf(_AsyncBroadcastStreamController).new.call(this, onListen, onCancel);
      ;
    }).prototype = _AsyncBroadcastStreamController.prototype;
    dart.addRtiResources(_AsyncBroadcastStreamController, ["async|_AsyncBroadcastStreamController"]);
    dart.setMethodSignature(_AsyncBroadcastStreamController, () => dart.global.Object.setPrototypeOf({
      [_sendData]: __t$TTovoid(),
      [_sendError]: T$.ObjectAndStackTraceTovoid(),
      [_sendDone]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_AsyncBroadcastStreamController))));
    dart.setLibraryUri(_AsyncBroadcastStreamController, I[39]);
    return _AsyncBroadcastStreamController;
  });
  async._AsyncBroadcastStreamController = async._AsyncBroadcastStreamController$();
  var _addPendingEvent = dart.privateName(async, "_addPendingEvent");
  var _flushPending = dart.privateName(async, "_flushPending");
  async._AsBroadcastStreamController$ = dart.generic(T => {
    var __t$_AsBroadcastStreamControllerOfT = () => (__t$_AsBroadcastStreamControllerOfT = dart.constFn(T[_eval]("async|_AsBroadcastStreamController<0>")))();
    var __t$_PendingEventsNOfT = () => (__t$_PendingEventsNOfT = dart.constFn(T[_eval]("async|_PendingEvents<0>?")))();
    var __t$_PendingEventsOfT = () => (__t$_PendingEventsOfT = dart.constFn(async._PendingEvents$(T)))();
    var __t$_DelayedDataOfT = () => (__t$_DelayedDataOfT = dart.constFn(async._DelayedData$(T)))();
    var __t$_SyncBroadcastStreamControllerOfT = () => (__t$_SyncBroadcastStreamControllerOfT = dart.constFn(async._SyncBroadcastStreamController$(T)))();
    class _AsBroadcastStreamController extends __t$_SyncBroadcastStreamControllerOfT() {
      static ['_#new#tearOff'](T, onListen, onCancel) {
        return new (async._AsBroadcastStreamController$(T)).new(onListen, onCancel);
      }
      get [_hasPending]() {
        let pending = this[_pending];
        return pending != null && !dart.test(pending.isEmpty);
      }
      [_addPendingEvent](event) {
        let t$3678;
        if (event == null) dart.nullFailed(I[75], 465, 39, "event");
        (t$3678 = this[_pending], t$3678 == null ? this[_pending] = new (__t$_PendingEventsOfT()).new() : t$3678).add(event);
      }
      add(data) {
        T[_as](data);
        if (!dart.test(this.isClosed) && dart.test(this[_isFiring])) {
          this[_addPendingEvent](new (__t$_DelayedDataOfT()).new(data));
          return;
        }
        super.add(data);
        this[_flushPending]();
      }
      addError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[75], 478, 24, "error");
        _internal.checkNotNullable(T$.Object(), error, "error");
        stackTrace == null ? stackTrace = async.AsyncError.defaultStackTrace(error) : null;
        if (!dart.test(this.isClosed) && dart.test(this[_isFiring])) {
          this[_addPendingEvent](new async._DelayedError.new(error, stackTrace));
          return;
        }
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_addEventError]());
        this[_sendError](error, stackTrace);
        this[_flushPending]();
      }
      [_flushPending]() {
        let pending = this[_pending];
        if (pending != null) {
          while (!dart.test(pending.isEmpty)) {
            pending.handleNext(this);
          }
        }
      }
      close() {
        if (!dart.test(this.isClosed) && dart.test(this[_isFiring])) {
          this[_addPendingEvent](C[79] || CT.C79);
          this[_state] = (dart.notNull(this[_state]) | 4) >>> 0;
          return super.done;
        }
        let result = super.close();
        if (!!dart.test(this[_hasPending])) dart.assertFailed(null, I[75], 506, 12, "!_hasPending");
        return result;
      }
      [_callOnCancel]() {
        let pending = this[_pending];
        if (pending != null) {
          pending.clear();
          this[_pending] = null;
        }
        super[_callOnCancel]();
      }
    }
    (_AsBroadcastStreamController.new = function(onListen, onCancel) {
      this[_pending] = null;
      this.$ti = this.$ti || __t$_AsBroadcastStreamControllerOfT();
      dart.global.Object.getPrototypeOf(_AsBroadcastStreamController).new.call(this, onListen, onCancel);
      ;
    }).prototype = _AsBroadcastStreamController.prototype;
    dart.addRtiResources(_AsBroadcastStreamController, ["async|_AsBroadcastStreamController", "async|_EventDispatch"]);
    dart.setMethodSignature(_AsBroadcastStreamController, () => dart.global.Object.setPrototypeOf({
      [_addPendingEvent]: T$0._DelayedEventTovoid(),
      [_flushPending]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_AsBroadcastStreamController))));
    dart.setGetterSignature(_AsBroadcastStreamController, () => dart.global.Object.setPrototypeOf({[_hasPending]: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_AsBroadcastStreamController))));
    dart.setLibraryUri(_AsBroadcastStreamController, I[39]);
    dart.setFieldSignature(_AsBroadcastStreamController, () => dart.global.Object.setPrototypeOf({[_pending]: {type: __t$_PendingEventsNOfT(), isConst: false, isFinal: false, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_AsBroadcastStreamController))));
    return _AsBroadcastStreamController;
  });
  async._AsBroadcastStreamController = async._AsBroadcastStreamController$();
  var _message = dart.privateName(async, "_message");
  async.DeferredLoadException = class DeferredLoadException extends core.Object {
    static ['_#new#tearOff'](message) {
      if (message == null) dart.nullFailed(I[78], 10, 32, "message");
      return new async.DeferredLoadException.new(message);
    }
    toString() {
      return "DeferredLoadException: '" + dart.str(this[_message]) + "'";
    }
  };
  (async.DeferredLoadException.new = function(message) {
    if (message == null) dart.nullFailed(I[78], 10, 32, "message");
    this[_message] = message;
    ;
  }).prototype = async.DeferredLoadException.prototype;
  dart.addRtiResources(async.DeferredLoadException, ["async|DeferredLoadException", "core|Exception"]);
  dart.setLibraryUri(async.DeferredLoadException, I[39]);
  dart.setFieldSignature(async.DeferredLoadException, () => dart.global.Object.setPrototypeOf({[_message]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(async.DeferredLoadException))));
  dart.defineExtensionMethods(async.DeferredLoadException, ['toString']);
  async.FutureOr$ = dart.generic(T => {
    var __t$FutureOrOfT = () => (__t$FutureOrOfT = dart.constFn(T[_eval]("async|FutureOr<0>")))();
    class FutureOr extends core.Object {}
    (FutureOr.__ = function() {
      this.$ti = this.$ti || __t$FutureOrOfT();
      dart.throw(new core.UnsupportedError.new("FutureOr cannot be instantiated"));
    }).prototype = FutureOr.prototype;
    dart.addRtiResources(FutureOr, ["async|FutureOr"]);
    dart.setLibraryUri(FutureOr, I[39]);
    return FutureOr;
  });
  async.FutureOr = async.FutureOr$();
  var _asyncCompleteError = dart.privateName(async, "_asyncCompleteError");
  var _completeWithValue = dart.privateName(async, "_completeWithValue");
  async.Future$ = dart.generic(T => {
    class Future extends core.Object {
      static new(computation) {
        if (computation == null) dart.nullFailed(I[79], 253, 30, "computation");
        let result = new (async._Future$(T)).new();
        async.Timer.run(dart.fn(() => {
          let computationResult = null;
          try {
            computationResult = computation();
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            let s = dart.stackTrace(t$36$35e);
            if (T$.Object()[_is](e)) {
              async._completeWithErrorCallback(result, e, s);
              return;
            } else
              throw t$36$35e;
          }
          result[_complete](computationResult);
        }, T$.VoidTovoid()));
        return result;
      }
      static ['_#new#tearOff'](T, computation) {
        if (computation == null) dart.nullFailed(I[79], 253, 30, "computation");
        return async.Future$(T).new(computation);
      }
      static microtask(computation) {
        if (computation == null) dart.nullFailed(I[79], 280, 40, "computation");
        let result = new (async._Future$(T)).new();
        async.scheduleMicrotask(dart.fn(() => {
          let computationResult = null;
          try {
            computationResult = computation();
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            let s = dart.stackTrace(t$36$35e);
            if (T$.Object()[_is](e)) {
              async._completeWithErrorCallback(result, e, s);
              return;
            } else
              throw t$36$35e;
          }
          result[_complete](computationResult);
        }, T$.VoidTovoid()));
        return result;
      }
      static ['_#microtask#tearOff'](T, computation) {
        if (computation == null) dart.nullFailed(I[79], 280, 40, "computation");
        return async.Future$(T).microtask(computation);
      }
      static sync(computation) {
        if (computation == null) dart.nullFailed(I[79], 310, 35, "computation");
        let result = null;
        try {
          result = computation();
        } catch (t$36$35e) {
          let error = dart.getThrown(t$36$35e);
          let stackTrace = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](error)) {
            let future = new (async._Future$(T)).new();
            let replacement = async.Zone.current.errorCallback(error, stackTrace);
            if (replacement != null) {
              future[_asyncCompleteError](replacement.error, replacement.stackTrace);
            } else {
              future[_asyncCompleteError](error, stackTrace);
            }
            return future;
          } else
            throw t$36$35e;
        }
        return T[_eval]("async|Future<0>")[_is](result) ? result : new (async._Future$(T)).value(result);
      }
      static ['_#sync#tearOff'](T, computation) {
        if (computation == null) dart.nullFailed(I[79], 310, 35, "computation");
        return async.Future$(T).sync(computation);
      }
      static value(value = null) {
        return new (async._Future$(T)).immediate(value == null ? T[_as](value) : value);
      }
      static ['_#value#tearOff'](T, value = null) {
        return async.Future$(T).value(value);
      }
      static error(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[79], 375, 31, "error");
        _internal.checkNotNullable(T$.Object(), error, "error");
        if (async.Zone.current != async._rootZone) {
          let replacement = async.Zone.current.errorCallback(error, stackTrace);
          if (replacement != null) {
            error = replacement.error;
            stackTrace = replacement.stackTrace;
          }
        }
        stackTrace == null ? stackTrace = async.AsyncError.defaultStackTrace(error) : null;
        return new (async._Future$(T)).immediateError(error, stackTrace);
      }
      static ['_#error#tearOff'](T, error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[79], 375, 31, "error");
        return async.Future$(T).error(error, stackTrace);
      }
      static delayed(duration, computation = null) {
        if (duration == null) dart.nullFailed(I[79], 419, 35, "duration");
        if (computation == null && !dart.test(_internal.typeAcceptsNull(T))) {
          dart.throw(new core.ArgumentError.value(null, "computation", "The type parameter is not nullable"));
        }
        let result = new (async._Future$(T)).new();
        async.Timer.new(duration, dart.fn(() => {
          if (computation == null) {
            result[_complete](T[_as](null));
          } else {
            let computationResult = null;
            try {
              computationResult = computation();
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                async._completeWithErrorCallback(result, e, s);
                return;
              } else
                throw t$36$35e;
            }
            result[_complete](computationResult);
          }
        }, T$.VoidTovoid()));
        return result;
      }
      static ['_#delayed#tearOff'](T, duration, computation = null) {
        if (duration == null) dart.nullFailed(I[79], 419, 35, "duration");
        return async.Future$(T).delayed(duration, computation);
      }
      static wait(T, futures, opts) {
        let t$3683;
        if (futures == null) dart.nullFailed(I[79], 487, 54, "futures");
        let eagerError = opts && 'eagerError' in opts ? opts.eagerError : false;
        if (eagerError == null) dart.nullFailed(I[79], 488, 13, "eagerError");
        let cleanUp = opts && 'cleanUp' in opts ? opts.cleanUp : null;
        let _future = new (async._Future$(T[_eval]("core|List<0>"))).new();
        let values = null;
        let remaining = 0;
        let error = null;
        let stackTrace = null;
        function handleError(theError, theStackTrace) {
          if (theError == null) dart.nullFailed(I[79], 497, 29, "theError");
          if (theStackTrace == null) dart.nullFailed(I[79], 497, 50, "theStackTrace");
          let remainingResults = remaining = remaining - 1;
          let valueList = values;
          if (valueList != null) {
            values = null;
            error = theError;
            stackTrace = theStackTrace;
            if (cleanUp != null) {
              for (let value of valueList) {
                if (value != null) {
                  let cleanUpValue = value;
                  G.FutureOfNull().sync(dart.fn(() => {
                    cleanUp(cleanUpValue);
                  }, T$0.VoidToNull()));
                }
              }
            }
            if (remainingResults === 0 || dart.test(eagerError)) {
              _future[_completeError](theError, theStackTrace);
            }
          } else {
            if (remainingResults === 0 && !dart.test(eagerError)) {
              _future[_completeError](dart.nullCheck(error), dart.nullCheck(stackTrace));
            }
          }
        }
        dart.fn(handleError, T$.ObjectAndStackTraceTovoid());
        try {
          for (let future of futures) {
            let pos = remaining;
            future.then(T$.Null(), dart.fn(value => {
              let remainingResults = remaining = remaining - 1;
              let valueList = values;
              if (valueList != null) {
                if (!(valueList[$_get](pos) == null)) dart.assertFailed(null, I[79], 539, 20, "valueList[pos] == null");
                valueList[$_set](pos, value);
                if (remainingResults === 0) {
                  _future[_completeWithValue]((() => {
                    let t$3682 = _interceptors.JSArray$(T).of([]);
                    for (let value of valueList)
                      t$3682.push(T[_as](value));
                    return t$3682;
                  })());
                }
              } else {
                if (cleanUp != null && value != null) {
                  G.FutureOfNull().sync(dart.fn(() => {
                    cleanUp(value);
                  }, T$0.VoidToNull()));
                }
                if (remainingResults === 0 && !dart.test(eagerError)) {
                  _future[_completeError](dart.nullCheck(error), dart.nullCheck(stackTrace));
                }
              }
            }, T[_eval]("core|Null(0)")), {onError: handleError});
            remaining = remaining + 1;
          }
          if (remaining === 0) {
            t$3683 = _future;
            return (() => {
              t$3683[_completeWithValue](_interceptors.JSArray$(T).of([]));
              return t$3683;
            })();
          }
          values = core.List$(T[_eval]("0?")).filled(remaining, null);
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let st = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            if (remaining === 0 || dart.test(eagerError)) {
              return async.Future$(T[_eval]("core|List<0>")).error(e, st);
            } else {
              error = e;
              stackTrace = st;
            }
          } else
            throw t$36$35e;
        }
        return _future;
      }
      static any(T, futures) {
        if (futures == null) dart.nullFailed(I[79], 626, 47, "futures");
        let completer = async.Completer$(T).sync();
        function onValue(value) {
          if (!dart.test(completer.isCompleted)) completer.complete(value);
        }
        dart.fn(onValue, T[_eval]("~(0)"));
        function onError(error, stack) {
          if (error == null) dart.nullFailed(I[79], 632, 25, "error");
          if (stack == null) dart.nullFailed(I[79], 632, 43, "stack");
          if (!dart.test(completer.isCompleted)) completer.completeError(error, stack);
        }
        dart.fn(onError, T$.ObjectAndStackTraceTovoid());
        for (let future of futures) {
          future.then(T$.void(), onValue, {onError: onError});
        }
        return completer.future;
      }
      static forEach(T, elements, action) {
        if (elements == null) dart.nullFailed(I[79], 659, 19, "elements");
        if (action == null) dart.nullFailed(I[79], 659, 38, "action");
        let iterator = elements[$iterator];
        return async.Future.doWhile(dart.fn(() => {
          if (!dart.test(iterator.moveNext())) return false;
          let result = action(iterator.current);
          if (T$0.Future()[_is](result)) return result.then(T$.bool(), C[80] || CT.C80);
          return true;
        }, T$1.VoidToFutureOrOfbool()));
      }
      static _kTrue(_) {
        return true;
      }
      static doWhile(action) {
        if (action == null) dart.nullFailed(I[79], 709, 46, "action");
        let doneSignal = new (G._FutureOfvoid()).new();
        let nextIteration = null;
        let t$36$35nextIteration$35isSet = false;
        function t$36$35nextIteration$35get() {
          return t$36$35nextIteration$35isSet ? nextIteration : dart.throw(new _internal.LateError.localNI("nextIteration"));
        }
        function t$36$35nextIteration$35set(nextIteration$35param) {
          if (nextIteration$35param == null) dart.nullFailed(I[79], 711, 30, "nextIteration#param");
          t$36$35nextIteration$35isSet = true;
          return nextIteration = nextIteration$35param;
        }
        t$36$35nextIteration$35set(async.Zone.current.bindUnaryCallbackGuarded(T$.bool(), dart.fn(keepGoing => {
          if (keepGoing == null) dart.nullFailed(I[79], 716, 65, "keepGoing");
          while (dart.test(keepGoing)) {
            let result = null;
            try {
              result = action();
            } catch (t$36$35e) {
              let error = dart.getThrown(t$36$35e);
              let stackTrace = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](error)) {
                async._asyncCompleteWithErrorCallback(doneSignal, error, stackTrace);
                return;
              } else
                throw t$36$35e;
            }
            if (T$.FutureOfbool()[_is](result)) {
              result.then(T$.void(), t$36$35nextIteration$35get(), {onError: dart.bind(doneSignal, _completeError)});
              return;
            }
            keepGoing = result;
          }
          doneSignal[_complete](null);
        }, T$1.boolTovoid())));
        t$36$35nextIteration$35get()(true);
        return doneSignal;
      }
    }
    (Future[dart.mixinNew] = function() {
    }).prototype = Future.prototype;
    dart.addRtiResources(Future, ["async|Future"]);
    dart.setStaticMethodSignature(Future, () => ['new', 'microtask', 'sync', 'value', 'error', 'delayed', 'wait', 'any', 'forEach', '_kTrue', 'doWhile']);
    dart.setLibraryUri(Future, I[39]);
    dart.setStaticFieldSignature(Future, () => ['_nullFuture', '_falseFuture']);
    return Future;
  });
  async.Future = async.Future$();
  dart.defineLazy(async.Future, {
    /*async.Future._nullFuture*/get _nullFuture() {
      return T$1._FutureOfNull()[_as](_internal.nullFuture);
    },
    /*async.Future._falseFuture*/get _falseFuture() {
      return new (G._FutureOfbool()).zoneValue(false, async._rootZone);
    }
  }, false);
  var message$1 = dart.privateName(async, "TimeoutException.message");
  var duration$ = dart.privateName(async, "TimeoutException.duration");
  async.TimeoutException = class TimeoutException extends core.Object {
    get message() {
      return this[message$1];
    }
    set message(value) {
      super.message = value;
    }
    get duration() {
      return this[duration$];
    }
    set duration(value) {
      super.duration = value;
    }
    static ['_#new#tearOff'](message, duration = null) {
      return new async.TimeoutException.new(message, duration);
    }
    toString() {
      let result = "TimeoutException";
      if (this.duration != null) result = "TimeoutException after " + dart.str(this.duration);
      if (this.message != null) result = result + ": " + dart.str(this.message);
      return result;
    }
  };
  (async.TimeoutException.new = function(message, duration = null) {
    this[message$1] = message;
    this[duration$] = duration;
    ;
  }).prototype = async.TimeoutException.prototype;
  dart.addRtiResources(async.TimeoutException, ["async|TimeoutException", "core|Exception"]);
  dart.setLibraryUri(async.TimeoutException, I[39]);
  dart.setFieldSignature(async.TimeoutException, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    duration: {type: T$1.DurationN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(async.TimeoutException))));
  dart.defineExtensionMethods(async.TimeoutException, ['toString']);
  async.Completer$ = dart.generic(T => {
    class Completer extends core.Object {
      static new() {
        return new (async._AsyncCompleter$(T)).new();
      }
      static ['_#new#tearOff'](T) {
        return async.Completer$(T).new();
      }
      static sync() {
        return new (async._SyncCompleter$(T)).new();
      }
      static ['_#sync#tearOff'](T) {
        return async.Completer$(T).sync();
      }
    }
    (Completer[dart.mixinNew] = function() {
    }).prototype = Completer.prototype;
    dart.addRtiResources(Completer, ["async|Completer"]);
    dart.setStaticMethodSignature(Completer, () => ['new', 'sync']);
    dart.setLibraryUri(Completer, I[39]);
    return Completer;
  });
  async.Completer = async.Completer$();
  var values$ = dart.privateName(async, "ParallelWaitError.values");
  var errors$ = dart.privateName(async, "ParallelWaitError.errors");
  var _defaultError = dart.privateName(async, "_defaultError");
  var _errorCount = dart.privateName(async, "_errorCount");
  async.ParallelWaitError$ = dart.generic((V, E) => {
    var __t$ParallelWaitErrorOfV$E = () => (__t$ParallelWaitErrorOfV$E = dart.constFn(V[_eval]("@<0>")[_bind](E)[_eval]("async|ParallelWaitError<1,2>")))();
    class ParallelWaitError extends core.Error {
      get values() {
        return this[values$];
      }
      set values(value) {
        super.values = value;
      }
      get errors() {
        return this[errors$];
      }
      set errors(value) {
        super.errors = value;
      }
      static ['_#new#tearOff'](V, E, values, errors, opts) {
        let errorCount = opts && 'errorCount' in opts ? opts.errorCount : null;
        let defaultError = opts && 'defaultError' in opts ? opts.defaultError : null;
        return new (async.ParallelWaitError$(V, E)).new(values, errors, {errorCount: errorCount, defaultError: defaultError});
      }
      toString() {
        if (this[_defaultError] == null) {
          if (this[_errorCount] == null || dart.notNull(this[_errorCount]) <= 1) {
            return "ParallelWaitError";
          }
          return "ParallelWaitError(" + dart.str(this[_errorCount]) + " errors)";
        }
        return "ParallelWaitError" + (this[_errorCount] != null && dart.notNull(this[_errorCount]) > 1 ? "(" + dart.str(this[_errorCount]) + " errors)" : "") + ": " + dart.str(this[_defaultError].error);
      }
      get stackTrace() {
        let t$3688, t$3688$;
        t$3688$ = (t$3688 = this[_defaultError], t$3688 == null ? null : t$3688.stackTrace);
        return t$3688$ == null ? super[$stackTrace] : t$3688$;
      }
    }
    (ParallelWaitError.new = function(values, errors, opts) {
      let errorCount = opts && 'errorCount' in opts ? opts.errorCount : null;
      let defaultError = opts && 'defaultError' in opts ? opts.defaultError : null;
      this[values$] = values;
      this[errors$] = errors;
      this[_defaultError] = defaultError;
      this[_errorCount] = errorCount;
      this.$ti = this.$ti || __t$ParallelWaitErrorOfV$E();
      dart.global.Object.getPrototypeOf(ParallelWaitError).new.call(this);
      ;
    }).prototype = ParallelWaitError.prototype;
    dart.addRtiResources(ParallelWaitError, ["async|ParallelWaitError"]);
    dart.setLibraryUri(ParallelWaitError, I[39]);
    dart.setFieldSignature(ParallelWaitError, () => dart.global.Object.setPrototypeOf({
      values: {type: V, isConst: false, isFinal: true},
      errors: {type: E, isConst: false, isFinal: true},
      [_defaultError]: {type: T$1.AsyncErrorN(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_errorCount]: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(ParallelWaitError))));
    dart.defineExtensionMethods(ParallelWaitError, ['toString']);
    dart.defineExtensionAccessors(ParallelWaitError, ['stackTrace']);
    return ParallelWaitError;
  });
  async.ParallelWaitError = async.ParallelWaitError$();
  var valueOrNull = dart.privateName(async, "_FutureResult.valueOrNull");
  var _onValue = dart.privateName(async, "_onValue");
  async._FutureResult$ = dart.generic(T => {
    var __t$_FutureResultOfT = () => (__t$_FutureResultOfT = dart.constFn(T[_eval]("async|_FutureResult<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    class _FutureResult extends core.Object {
      get valueOrNull() {
        return this[valueOrNull];
      }
      set valueOrNull(value) {
        this[valueOrNull] = __t$TN()[_as](value);
      }
      static ['_#new#tearOff'](T, future) {
        if (future == null) dart.nullFailed(I[80], 574, 27, "future");
        return new (async._FutureResult$(T)).new(future);
      }
      get value() {
        let t$3688;
        t$3688 = this.valueOrNull;
        return t$3688 == null ? T[_as](this.valueOrNull) : t$3688;
      }
      [_onValue](value) {
        let t$3688;
        T[_as](value);
        this.valueOrNull = value;
        t$3688 = 0;
        this.onReady(t$3688);
      }
      [_onError$](error, stack) {
        let t$3688;
        if (error == null) dart.nullFailed(I[80], 589, 24, "error");
        if (stack == null) dart.nullFailed(I[80], 589, 42, "stack");
        this.errorOrNull = new async.AsyncError.new(error, stack);
        t$3688 = 1;
        this.onReady(t$3688);
      }
      static _waitAll(results, whenReady) {
        if (results == null) dart.nullFailed(I[80], 598, 27, "results");
        if (whenReady == null) dart.nullFailed(I[80], 598, 55, "whenReady");
        if (!dart.test(results[$isNotEmpty])) dart.assertFailed(null, I[80], 599, 12, "results.isNotEmpty");
        let ready = 0;
        let errors = 0;
        function onReady(error) {
          if (error == null) dart.nullFailed(I[80], 602, 22, "error");
          errors = errors + dart.notNull(error);
          if ((ready = ready + 1) === results[$length]) {
            whenReady(errors);
          }
        }
        dart.fn(onReady, T$.intTovoid());
        for (let r of results) {
          r.onReady = onReady;
        }
      }
      static _noop(_) {
      }
    }
    (_FutureResult.new = function(future) {
      if (future == null) dart.nullFailed(I[80], 574, 27, "future");
      this[valueOrNull] = null;
      this.errorOrNull = null;
      this.onReady = C[81] || CT.C81;
      this.$ti = this.$ti || __t$_FutureResultOfT();
      future.then(T$.void(), dart.bind(this, _onValue), {onError: dart.bind(this, _onError$)});
    }).prototype = _FutureResult.prototype;
    dart.addRtiResources(_FutureResult, ["async|_FutureResult"]);
    dart.setMethodSignature(_FutureResult, () => dart.global.Object.setPrototypeOf({
      [_onValue]: T$.ObjectNTovoid(),
      [_onError$]: T$.ObjectAndStackTraceTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_FutureResult))));
    dart.setStaticMethodSignature(_FutureResult, () => ['_waitAll', '_noop']);
    dart.setGetterSignature(_FutureResult, () => dart.global.Object.setPrototypeOf({value: T}, dart.getGetters(dart.global.Object.getPrototypeOf(_FutureResult))));
    dart.setLibraryUri(_FutureResult, I[39]);
    dart.setFieldSignature(_FutureResult, () => dart.global.Object.setPrototypeOf({
      valueOrNull: {type: __t$TN(), isConst: false, isFinal: false},
      errorOrNull: {type: T$1.AsyncErrorN(), isConst: false, isFinal: false, libraryUri: I[39]},
      onReady: {type: T$.intTovoid(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_FutureResult))));
    return _FutureResult;
  });
  async._FutureResult = async._FutureResult$();
  async._Completer$ = dart.generic(T => {
    var __t$_CompleterOfT = () => (__t$_CompleterOfT = dart.constFn(T[_eval]("async|_Completer<0>")))();
    var __t$_FutureOfT = () => (__t$_FutureOfT = dart.constFn(T[_eval]("async|_Future<0>")))();
    var __t$_FutureOfT$ = () => (__t$_FutureOfT$ = dart.constFn(async._Future$(T)))();
    class _Completer extends core.Object {
      completeError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[81], 16, 29, "error");
        _internal.checkNotNullable(T$.Object(), error, "error");
        if (!dart.test(this.future[_mayComplete])) dart.throw(new core.StateError.new("Future already completed"));
        let replacement = async.Zone.current.errorCallback(error, stackTrace);
        if (replacement != null) {
          error = replacement.error;
          stackTrace = replacement.stackTrace;
        } else {
          stackTrace == null ? stackTrace = async.AsyncError.defaultStackTrace(error) : null;
        }
        this[_completeError](error, stackTrace);
      }
      get isCompleted() {
        return !dart.test(this.future[_mayComplete]);
      }
    }
    (_Completer.new = function() {
      this.future = new (__t$_FutureOfT$()).new();
      this.$ti = this.$ti || __t$_CompleterOfT();
      ;
    }).prototype = _Completer.prototype;
    dart.addRtiResources(_Completer, ["async|_Completer", "async|Completer"]);
    dart.setMethodSignature(_Completer, () => dart.global.Object.setPrototypeOf({completeError: T$1.ObjectAndStackTraceNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_Completer))));
    dart.setGetterSignature(_Completer, () => dart.global.Object.setPrototypeOf({isCompleted: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_Completer))));
    dart.setLibraryUri(_Completer, I[39]);
    dart.setFieldSignature(_Completer, () => dart.global.Object.setPrototypeOf({future: {type: __t$_FutureOfT(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_Completer))));
    return _Completer;
  });
  async._Completer = async._Completer$();
  async._AsyncCompleter$ = dart.generic(T => {
    var __t$_AsyncCompleterOfT = () => (__t$_AsyncCompleterOfT = dart.constFn(T[_eval]("async|_AsyncCompleter<0>")))();
    var __t$FutureOrNOfT = () => (__t$FutureOrNOfT = dart.constFn(T[_eval]("0/?")))();
    var __t$FutureOrOfT = () => (__t$FutureOrOfT = dart.constFn(T[_eval]("0/")))();
    var __t$_CompleterOfT = () => (__t$_CompleterOfT = dart.constFn(async._Completer$(T)))();
    class _AsyncCompleter extends __t$_CompleterOfT() {
      complete(value = null) {
        __t$FutureOrNOfT()[_as](value);
        if (!dart.test(this.future[_mayComplete])) dart.throw(new core.StateError.new("Future already completed"));
        this.future[_asyncComplete](__t$FutureOrOfT()[_as](value == null ? value : value));
      }
      [_completeError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[81], 47, 30, "error");
        if (stackTrace == null) dart.nullFailed(I[81], 47, 48, "stackTrace");
        this.future[_asyncCompleteError](error, stackTrace);
      }
      static ['_#new#tearOff'](T) {
        return new (async._AsyncCompleter$(T)).new();
      }
    }
    (_AsyncCompleter.new = function() {
      this.$ti = this.$ti || __t$_AsyncCompleterOfT();
      dart.global.Object.getPrototypeOf(_AsyncCompleter).new.call(this);
      ;
    }).prototype = _AsyncCompleter.prototype;
    dart.addRtiResources(_AsyncCompleter, ["async|_AsyncCompleter"]);
    dart.setMethodSignature(_AsyncCompleter, () => dart.global.Object.setPrototypeOf({
      complete: T$0.ObjectNTovoid$1(),
      [_completeError]: T$.ObjectAndStackTraceTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_AsyncCompleter))));
    dart.setLibraryUri(_AsyncCompleter, I[39]);
    return _AsyncCompleter;
  });
  async._AsyncCompleter = async._AsyncCompleter$();
  async._SyncCompleter$ = dart.generic(T => {
    var __t$_SyncCompleterOfT = () => (__t$_SyncCompleterOfT = dart.constFn(T[_eval]("async|_SyncCompleter<0>")))();
    var __t$FutureOrNOfT = () => (__t$FutureOrNOfT = dart.constFn(T[_eval]("0/?")))();
    var __t$FutureOrOfT = () => (__t$FutureOrOfT = dart.constFn(T[_eval]("0/")))();
    var __t$_CompleterOfT = () => (__t$_CompleterOfT = dart.constFn(async._Completer$(T)))();
    class _SyncCompleter extends __t$_CompleterOfT() {
      complete(value = null) {
        __t$FutureOrNOfT()[_as](value);
        if (!dart.test(this.future[_mayComplete])) dart.throw(new core.StateError.new("Future already completed"));
        this.future[_complete](__t$FutureOrOfT()[_as](value == null ? value : value));
      }
      [_completeError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[81], 62, 30, "error");
        if (stackTrace == null) dart.nullFailed(I[81], 62, 48, "stackTrace");
        this.future[_completeError](error, stackTrace);
      }
      static ['_#new#tearOff'](T) {
        return new (async._SyncCompleter$(T)).new();
      }
    }
    (_SyncCompleter.new = function() {
      this.$ti = this.$ti || __t$_SyncCompleterOfT();
      dart.global.Object.getPrototypeOf(_SyncCompleter).new.call(this);
      ;
    }).prototype = _SyncCompleter.prototype;
    dart.addRtiResources(_SyncCompleter, ["async|_SyncCompleter"]);
    dart.setMethodSignature(_SyncCompleter, () => dart.global.Object.setPrototypeOf({
      complete: T$0.ObjectNTovoid$1(),
      [_completeError]: T$.ObjectAndStackTraceTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SyncCompleter))));
    dart.setLibraryUri(_SyncCompleter, I[39]);
    return _SyncCompleter;
  });
  async._SyncCompleter = async._SyncCompleter$();
  var _nextListener = dart.privateName(async, "_nextListener");
  var _errorTest = dart.privateName(async, "_errorTest");
  var _whenCompleteAction = dart.privateName(async, "_whenCompleteAction");
  async._FutureListener$ = dart.generic((S, T) => {
    var __t$_FutureListenerOfS$T = () => (__t$_FutureListenerOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_FutureListener<1,2>")))();
    var __t$SToFutureOrOfT = () => (__t$SToFutureOrOfT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("2/(1)")))();
    var __t$FutureOrOfT = () => (__t$FutureOrOfT = dart.constFn(T[_eval]("0/")))();
    var __t$FutureOfT = () => (__t$FutureOfT = dart.constFn(T[_eval]("async|Future<0>")))();
    var __t$ObjectNToFutureOrOfT = () => (__t$ObjectNToFutureOrOfT = dart.constFn(T[_eval]("0/(core|Object?)")))();
    var __t$AsyncErrorToFutureOrOfT = () => (__t$AsyncErrorToFutureOrOfT = dart.constFn(T[_eval]("0/(async|AsyncError)")))();
    var __t$_FutureOfT = () => (__t$_FutureOfT = dart.constFn(T[_eval]("async|_Future<0>")))();
    class _FutureListener extends core.Object {
      static ['_#then#tearOff'](S, T, result, onValue, errorCallback) {
        if (result == null) dart.nullFailed(I[81], 110, 12, "result");
        if (onValue == null) dart.nullFailed(I[81], 110, 44, "onValue");
        return new (async._FutureListener$(S, T)).then(result, onValue, errorCallback);
      }
      static ['_#thenAwait#tearOff'](S, T, result, onValue, errorCallback) {
        if (result == null) dart.nullFailed(I[81], 116, 12, "result");
        if (onValue == null) dart.nullFailed(I[81], 116, 44, "onValue");
        if (errorCallback == null) dart.nullFailed(I[81], 116, 62, "errorCallback");
        return new (async._FutureListener$(S, T)).thenAwait(result, onValue, errorCallback);
      }
      static ['_#catchError#tearOff'](S, T, result, errorCallback, callback) {
        if (result == null) dart.nullFailed(I[81], 121, 35, "result");
        return new (async._FutureListener$(S, T)).catchError(result, errorCallback, callback);
      }
      static ['_#whenComplete#tearOff'](S, T, result, callback) {
        if (result == null) dart.nullFailed(I[81], 124, 37, "result");
        return new (async._FutureListener$(S, T)).whenComplete(result, callback);
      }
      get [_zone$]() {
        return this.result[_zone$];
      }
      get handlesValue() {
        return (dart.notNull(this.state) & 1) !== 0;
      }
      get handlesError() {
        return (dart.notNull(this.state) & 2) !== 0;
      }
      get hasErrorTest() {
        return (dart.notNull(this.state) & 15) >>> 0 === 6;
      }
      get handlesComplete() {
        return (dart.notNull(this.state) & 15) >>> 0 === 8;
      }
      get [_onValue]() {
        if (!dart.test(this.handlesValue)) dart.assertFailed(null, I[81], 136, 12, "handlesValue");
        return this.callback;
      }
      get [_onError$]() {
        return this.errorCallback;
      }
      get [_errorTest]() {
        if (!dart.test(this.hasErrorTest)) dart.assertFailed(null, I[81], 143, 12, "hasErrorTest");
        return this.callback;
      }
      get [_whenCompleteAction]() {
        if (!dart.test(this.handlesComplete)) dart.assertFailed(null, I[81], 148, 12, "handlesComplete");
        return this.callback;
      }
      get hasErrorCallback() {
        if (!dart.test(this.handlesError)) dart.assertFailed(null, I[81], 156, 12, "handlesError");
        return this[_onError$] != null;
      }
      handleValue(sourceResult) {
        S[_as](sourceResult);
        return this[_zone$].runUnary(__t$FutureOrOfT(), S, this[_onValue], sourceResult);
      }
      matchesErrorTest(asyncError) {
        if (asyncError == null) dart.nullFailed(I[81], 166, 36, "asyncError");
        if (!dart.test(this.hasErrorTest)) return true;
        return this[_zone$].runUnary(T$.bool(), T$.Object(), this[_errorTest], asyncError.error);
      }
      handleError(asyncError) {
        if (asyncError == null) dart.nullFailed(I[81], 171, 38, "asyncError");
        if (!(dart.test(this.handlesError) && dart.test(this.hasErrorCallback))) dart.assertFailed(null, I[81], 172, 12, "handlesError && hasErrorCallback");
        let errorCallback = this.errorCallback;
        let result = null;
        if (T$1.ObjectAndStackTraceTodynamic()[_is](errorCallback)) {
          result = this[_zone$].runBinary(T$.dynamic(), T$.Object(), T$.StackTrace(), errorCallback, asyncError.error, asyncError.stackTrace);
        } else {
          result = this[_zone$].runUnary(T$.dynamic(), T$.Object(), T$1.ObjectTodynamic()[_as](errorCallback), asyncError.error);
        }
        try {
          return __t$FutureOrOfT()[_as](result);
        } catch (t$36$35e) {
          let t$36$35ex = dart.getThrown(t$36$35e);
          if (T$1.TypeError()[_is](t$36$35ex)) {
            if (dart.test(this.handlesValue)) {
              dart.throw(new core.ArgumentError.new("The error handler of Future.then must return a value of the returned future's type", "onError"));
            }
            dart.throw(new core.ArgumentError.new("The error handler of Future.catchError must return a value of the future's type", "onError"));
          } else
            throw t$36$35e;
        }
      }
      handleWhenComplete() {
        if (!!dart.test(this.handlesError)) dart.assertFailed(null, I[81], 205, 12, "!handlesError");
        return this[_zone$].run(T$.dynamic(), this[_whenCompleteAction]);
      }
      shouldChain(value) {
        if (value == null) dart.nullFailed(I[81], 212, 36, "value");
        return __t$FutureOfT()[_is](value) || !T[_is](value);
      }
    }
    (_FutureListener.then = function(result, onValue, errorCallback) {
      if (result == null) dart.nullFailed(I[81], 110, 12, "result");
      if (onValue == null) dart.nullFailed(I[81], 110, 44, "onValue");
      this[_nextListener] = null;
      this.result = result;
      this.callback = onValue;
      this.errorCallback = errorCallback;
      this.state = errorCallback == null ? 1 : 3;
      this.$ti = this.$ti || __t$_FutureListenerOfS$T();
      ;
    }).prototype = _FutureListener.prototype;
    (_FutureListener.thenAwait = function(result, onValue, errorCallback) {
      if (result == null) dart.nullFailed(I[81], 116, 12, "result");
      if (onValue == null) dart.nullFailed(I[81], 116, 44, "onValue");
      if (errorCallback == null) dart.nullFailed(I[81], 116, 62, "errorCallback");
      this[_nextListener] = null;
      this.result = result;
      this.callback = onValue;
      this.errorCallback = errorCallback;
      this.state = 19;
      this.$ti = this.$ti || __t$_FutureListenerOfS$T();
      ;
    }).prototype = _FutureListener.prototype;
    (_FutureListener.catchError = function(result, errorCallback, callback) {
      if (result == null) dart.nullFailed(I[81], 121, 35, "result");
      this[_nextListener] = null;
      this.result = result;
      this.errorCallback = errorCallback;
      this.callback = callback;
      this.state = callback == null ? 2 : 6;
      this.$ti = this.$ti || __t$_FutureListenerOfS$T();
      ;
    }).prototype = _FutureListener.prototype;
    (_FutureListener.whenComplete = function(result, callback) {
      if (result == null) dart.nullFailed(I[81], 124, 37, "result");
      this[_nextListener] = null;
      this.result = result;
      this.callback = callback;
      this.errorCallback = null;
      this.state = 8;
      this.$ti = this.$ti || __t$_FutureListenerOfS$T();
      ;
    }).prototype = _FutureListener.prototype;
    dart.addRtiResources(_FutureListener, ["async|_FutureListener"]);
    dart.setMethodSignature(_FutureListener, () => dart.global.Object.setPrototypeOf({
      handleValue: __t$ObjectNToFutureOrOfT(),
      matchesErrorTest: T$1.AsyncErrorTobool(),
      handleError: __t$AsyncErrorToFutureOrOfT(),
      handleWhenComplete: T$.VoidTodynamic(),
      shouldChain: T$1.FutureTobool()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_FutureListener))));
    dart.setGetterSignature(_FutureListener, () => dart.global.Object.setPrototypeOf({
      [_zone$]: T$1._Zone(),
      handlesValue: T$.bool(),
      handlesError: T$.bool(),
      hasErrorTest: T$.bool(),
      handlesComplete: T$.bool(),
      [_onValue]: __t$SToFutureOrOfT(),
      [_onError$]: T$.FunctionN(),
      [_errorTest]: T$.ObjectTobool(),
      [_whenCompleteAction]: T$.VoidTodynamic(),
      hasErrorCallback: T$.bool()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_FutureListener))));
    dart.setLibraryUri(_FutureListener, I[39]);
    dart.setFieldSignature(_FutureListener, () => dart.global.Object.setPrototypeOf({
      [_nextListener]: {type: T$1._FutureListenerN(), isConst: false, isFinal: false, libraryUri: I[39]},
      result: {type: __t$_FutureOfT(), isConst: false, isFinal: true, libraryUri: I[39]},
      state: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      callback: {type: T$.FunctionN(), isConst: false, isFinal: true, libraryUri: I[11]},
      errorCallback: {type: T$.FunctionN(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_FutureListener))));
    dart.setStaticFieldSignature(_FutureListener, () => ['maskValue', 'maskError', 'maskTestError', 'maskWhenComplete', 'maskAwait', 'stateChain', 'stateThen', 'stateThenOnerror', 'stateThenAwait', 'stateCatchError', 'stateCatchErrorTest', 'stateWhenComplete', 'maskType']);
    return _FutureListener;
  });
  async._FutureListener = async._FutureListener$();
  dart.defineLazy(async._FutureListener, {
    /*async._FutureListener.maskValue*/get maskValue() {
      return 1;
    },
    /*async._FutureListener.maskError*/get maskError() {
      return 2;
    },
    /*async._FutureListener.maskTestError*/get maskTestError() {
      return 4;
    },
    /*async._FutureListener.maskWhenComplete*/get maskWhenComplete() {
      return 8;
    },
    /*async._FutureListener.maskAwait*/get maskAwait() {
      return 16;
    },
    /*async._FutureListener.stateChain*/get stateChain() {
      return 0;
    },
    /*async._FutureListener.stateThen*/get stateThen() {
      return 1;
    },
    /*async._FutureListener.stateThenOnerror*/get stateThenOnerror() {
      return 3;
    },
    /*async._FutureListener.stateThenAwait*/get stateThenAwait() {
      return 19;
    },
    /*async._FutureListener.stateCatchError*/get stateCatchError() {
      return 2;
    },
    /*async._FutureListener.stateCatchErrorTest*/get stateCatchErrorTest() {
      return 6;
    },
    /*async._FutureListener.stateWhenComplete*/get stateWhenComplete() {
      return 8;
    },
    /*async._FutureListener.maskType*/get maskType() {
      return 15;
    }
  }, false);
  var _resultOrListeners = dart.privateName(async, "_resultOrListeners");
  var _setValue = dart.privateName(async, "_setValue");
  var _isPendingComplete = dart.privateName(async, "_isPendingComplete");
  var _mayAddListener = dart.privateName(async, "_mayAddListener");
  var _isChained = dart.privateName(async, "_isChained");
  var _isComplete = dart.privateName(async, "_isComplete");
  var _hasError = dart.privateName(async, "_hasError");
  var _ignoreError = dart.privateName(async, "_ignoreError");
  var _setChained = dart.privateName(async, "_setChained");
  var _chainSource = dart.privateName(async, "_chainSource");
  var _ignore = dart.privateName(async, "_ignore");
  var _safeOnError = dart.privateName(async, "_safeOnError");
  var _setPendingComplete = dart.privateName(async, "_setPendingComplete");
  var _clearPendingComplete = dart.privateName(async, "_clearPendingComplete");
  var _error = dart.privateName(async, "_error");
  var _setErrorObject = dart.privateName(async, "_setErrorObject");
  var _setError = dart.privateName(async, "_setError");
  var _cloneResult = dart.privateName(async, "_cloneResult");
  var _prependListeners = dart.privateName(async, "_prependListeners");
  var _reverseListeners = dart.privateName(async, "_reverseListeners");
  var _removeListeners = dart.privateName(async, "_removeListeners");
  var _chainFuture = dart.privateName(async, "_chainFuture");
  var _asyncCompleteWithValue = dart.privateName(async, "_asyncCompleteWithValue");
  var _asyncCompleteUnchecked = dart.privateName(async, "_asyncCompleteUnchecked");
  var _asyncCompleteUncheckedNoFuture = dart.privateName(async, "_asyncCompleteUncheckedNoFuture");
  async._Future$ = dart.generic(T => {
    var __t$_FutureOfT = () => (__t$_FutureOfT = dart.constFn(T[_eval]("async|_Future<0>")))();
    var __t$FutureOrOfT = () => (__t$FutureOrOfT = dart.constFn(T[_eval]("0/")))();
    var __t$FutureOfT = () => (__t$FutureOfT = dart.constFn(T[_eval]("async|Future<0>")))();
    var __t$VoidToNFutureOrOfT = () => (__t$VoidToNFutureOrOfT = dart.constFn(T[_eval]("0/()?")))();
    var __t$TToNull = () => (__t$TToNull = dart.constFn(T[_eval]("core|Null(0)")))();
    var __t$Fn__ToFutureOfR = () => (__t$Fn__ToFutureOfR = dart.constFn(T[_eval]("async|Future<0^>(0^/(0){onError:core|Function?})<core|Object?>")))();
    var __t$FnAndFunctionToFutureOfE = () => (__t$FnAndFunctionToFutureOfE = dart.constFn(T[_eval]("async|Future<0^>(0^/(0),core|Function)<core|Object?>")))();
    var __t$Function__ToFutureOfT = () => (__t$Function__ToFutureOfT = dart.constFn(T[_eval]("async|Future<0>(core|Function{test:core|bool(core|Object)?})")))();
    var __t$FnToFutureOfT = () => (__t$FnToFutureOfT = dart.constFn(T[_eval]("async|Future<0>(@())")))();
    var __t$VoidToStreamOfT = () => (__t$VoidToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>()")))();
    var __t$FutureOfTTovoid = () => (__t$FutureOfTTovoid = dart.constFn(T[_eval]("~(async|Future<0>)")))();
    var __t$Duration__ToFutureOfT = () => (__t$Duration__ToFutureOfT = dart.constFn(T[_eval]("async|Future<0>(core|Duration{onTimeout:core|Object?})")))();
    var __t$_FutureOfT$ = () => (__t$_FutureOfT$ = dart.constFn(async._Future$(T)))();
    var __t$_FutureListenerOfT$T = () => (__t$_FutureListenerOfT$T = dart.constFn(async._FutureListener$(T, T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _Future extends core.Object {
      static ['_#new#tearOff'](T) {
        return new (async._Future$(T)).new();
      }
      static ['_#immediate#tearOff'](T, result) {
        return new (async._Future$(T)).immediate(result);
      }
      static ['_#zoneValue#tearOff'](T, value, _zone) {
        if (_zone == null) dart.nullFailed(I[81], 295, 35, "_zone");
        return new (async._Future$(T)).zoneValue(value, _zone);
      }
      static ['_#immediateError#tearOff'](T, error, stackTrace) {
        if (stackTrace == null) dart.nullFailed(I[81], 299, 48, "stackTrace");
        return new (async._Future$(T)).immediateError(error, stackTrace);
      }
      static ['_#value#tearOff'](T, value) {
        return new (async._Future$(T)).value(value);
      }
      get [_mayComplete]() {
        return (dart.notNull(this[_state]) & 30) >>> 0 === 0;
      }
      get [_isPendingComplete]() {
        return (dart.notNull(this[_state]) & 2) !== 0;
      }
      get [_mayAddListener]() {
        return dart.notNull(this[_state]) <= (2 | 1) >>> 0;
      }
      get [_isChained]() {
        return (dart.notNull(this[_state]) & 4) !== 0;
      }
      get [_isComplete]() {
        return (dart.notNull(this[_state]) & (8 | 16) >>> 0) !== 0;
      }
      get [_hasError]() {
        return (dart.notNull(this[_state]) & 16) !== 0;
      }
      get [_ignoreError]() {
        return (dart.notNull(this[_state]) & 1) !== 0;
      }
      [_setChained](source) {
        if (source == null) dart.nullFailed(I[81], 316, 28, "source");
        if (!dart.test(this[_mayAddListener])) dart.assertFailed(null, I[81], 317, 12, "_mayAddListener");
        this[_state] = (4 | (dart.notNull(this[_state]) & 1) >>> 0) >>> 0;
        this[_resultOrListeners] = source;
      }
      then(R, f, opts) {
        if (f == null) dart.nullFailed(I[81], 322, 33, "f");
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let currentZone = async.Zone.current;
        if (currentZone == async._rootZone) {
          if (onError != null && !T$1.ObjectAndStackTraceTodynamic()[_is](onError) && !T$1.ObjectTodynamic()[_is](onError)) {
            dart.throw(new core.ArgumentError.value(onError, "onError", "Error handler must accept one Object or one Object and a StackTrace as arguments, and return a value of the returned future's type"));
          }
        } else {
          f = currentZone.registerUnaryCallback(R[_eval]("0/"), T, f);
          if (onError != null) {
            onError = async._registerErrorHandler(onError, currentZone);
          }
        }
        let result = new (async._Future$(R)).new();
        this[_addListener](new (async._FutureListener$(T, R)).then(result, f, onError));
        return result;
      }
      [_thenAwait](E, f, onError) {
        if (f == null) dart.nullFailed(I[81], 352, 39, "f");
        if (onError == null) dart.nullFailed(I[81], 352, 60, "onError");
        let result = new (async._Future$(E)).new();
        this[_addListener](new (async._FutureListener$(T, E)).thenAwait(result, f, onError));
        return result;
      }
      [_ignore]() {
        let t$3690;
        let source = this;
        while (dart.test(source[_isChained])) {
          source = source[_chainSource];
        }
        t$3690 = source;
        t$3690[_state] = (dart.notNull(t$3690[_state]) | 1) >>> 0;
      }
      catchError(onError, opts) {
        if (onError == null) dart.nullFailed(I[81], 366, 33, "onError");
        let test = opts && 'test' in opts ? opts.test : null;
        let result = new (__t$_FutureOfT$()).new();
        if (result[_zone$] != async._rootZone) {
          onError = async._registerErrorHandler(onError, result[_zone$]);
          if (test != null) test = result[_zone$].registerUnaryCallback(T$.bool(), T$.Object(), test);
        }
        this[_addListener](new (__t$_FutureListenerOfT$T()).catchError(result, onError, test));
        return result;
      }
      [_safeOnError](R, onError) {
        if (onError == null) dart.nullFailed(I[81], 383, 70, "onError");
        if (!R[_eval]("async|_Future<0>")[_is](this)) dart.assertFailed(null, I[81], 384, 12, "this is _Future<R>");
        let result = new (async._Future$(R)).new();
        if (result[_zone$] != async._rootZone) {
          onError = result[_zone$].registerBinaryCallback(R[_eval]("0/"), T$.Object(), T$.StackTrace(), onError);
        }
        this[_addListener](new (async._FutureListener$(T, R)).catchError(result, onError, null));
        return result;
      }
      whenComplete(action) {
        if (action == null) dart.nullFailed(I[81], 393, 34, "action");
        let result = new (__t$_FutureOfT$()).new();
        if (result[_zone$] != async._rootZone) {
          action = result[_zone$].registerCallback(T$.dynamic(), action);
        }
        this[_addListener](new (__t$_FutureListenerOfT$T()).whenComplete(result, action));
        return result;
      }
      asStream() {
        return __t$StreamOfT().fromFuture(this);
      }
      [_setPendingComplete]() {
        if (!dart.test(this[_mayComplete])) dart.assertFailed(null, I[81], 405, 12, "_mayComplete");
        this[_state] = (dart.notNull(this[_state]) ^ (0 ^ 2) >>> 0) >>> 0;
      }
      [_clearPendingComplete]() {
        if (!dart.test(this[_isPendingComplete])) dart.assertFailed(null, I[81], 410, 12, "_isPendingComplete");
        this[_state] = (dart.notNull(this[_state]) ^ (2 ^ 0) >>> 0) >>> 0;
      }
      get [_error]() {
        if (!dart.test(this[_hasError])) dart.assertFailed(null, I[81], 415, 12, "_hasError");
        return T$1.AsyncError()[_as](this[_resultOrListeners]);
      }
      get [_chainSource]() {
        if (!dart.test(this[_isChained])) dart.assertFailed(null, I[81], 420, 12, "_isChained");
        return T$0._Future()[_as](this[_resultOrListeners]);
      }
      [_setValue](value) {
        T[_as](value);
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 426, 12, "!_isComplete");
        this[_state] = 8;
        this[_resultOrListeners] = value;
      }
      [_setErrorObject](error) {
        if (error == null) dart.nullFailed(I[81], 431, 35, "error");
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 432, 12, "!_isComplete");
        this[_state] = (16 | (dart.notNull(this[_state]) & 1) >>> 0) >>> 0;
        this[_resultOrListeners] = error;
      }
      [_setError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[81], 437, 25, "error");
        if (stackTrace == null) dart.nullFailed(I[81], 437, 43, "stackTrace");
        this[_setErrorObject](new async.AsyncError.new(error, stackTrace));
      }
      [_cloneResult](source) {
        if (source == null) dart.nullFailed(I[81], 444, 29, "source");
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 445, 12, "!_isComplete");
        if (!dart.test(source[_isComplete])) dart.assertFailed(null, I[81], 446, 12, "source._isComplete");
        this[_state] = (dart.notNull(source[_state]) & 30 | (dart.notNull(this[_state]) & 1) >>> 0) >>> 0;
        this[_resultOrListeners] = source[_resultOrListeners];
      }
      [_addListener](listener) {
        if (listener == null) dart.nullFailed(I[81], 452, 37, "listener");
        if (!(listener[_nextListener] == null)) dart.assertFailed(null, I[81], 453, 12, "listener._nextListener == null");
        if (dart.test(this[_mayAddListener])) {
          listener[_nextListener] = T$1._FutureListenerN()[_as](this[_resultOrListeners]);
          this[_resultOrListeners] = listener;
        } else {
          if (dart.test(this[_isChained])) {
            let source = this[_chainSource];
            if (!dart.test(source[_isComplete])) {
              source[_addListener](listener);
              return;
            }
            this[_cloneResult](source);
          }
          if (!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 469, 14, "_isComplete");
          this[_zone$].scheduleMicrotask(dart.fn(() => {
            async._Future._propagateToListeners(this, listener);
          }, T$.VoidTovoid()));
        }
      }
      [_prependListeners](listeners) {
        if (listeners == null) return;
        if (dart.test(this[_mayAddListener])) {
          let existingListeners = T$1._FutureListenerN()[_as](this[_resultOrListeners]);
          this[_resultOrListeners] = listeners;
          if (existingListeners != null) {
            let cursor = listeners;
            let next = cursor[_nextListener];
            while (next != null) {
              cursor = next;
              next = cursor[_nextListener];
            }
            cursor[_nextListener] = existingListeners;
          }
        } else {
          if (dart.test(this[_isChained])) {
            let source = this[_chainSource];
            if (!dart.test(source[_isComplete])) {
              source[_prependListeners](listeners);
              return;
            }
            this[_cloneResult](source);
          }
          if (!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 503, 14, "_isComplete");
          listeners = this[_reverseListeners](listeners);
          this[_zone$].scheduleMicrotask(dart.fn(() => {
            async._Future._propagateToListeners(this, listeners);
          }, T$.VoidTovoid()));
        }
      }
      [_removeListeners]() {
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 514, 12, "!_isComplete");
        let current = T$1._FutureListenerN()[_as](this[_resultOrListeners]);
        this[_resultOrListeners] = null;
        return this[_reverseListeners](current);
      }
      [_reverseListeners](listeners) {
        let prev = null;
        let current = listeners;
        while (current != null) {
          let next = current[_nextListener];
          current[_nextListener] = prev;
          prev = current;
          current = next;
        }
        return prev;
      }
      [_chainForeignFuture](source) {
        if (source == null) dart.nullFailed(I[81], 539, 35, "source");
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 540, 12, "!_isComplete");
        if (!!T$0._Future()[_is](source)) dart.assertFailed(null, I[81], 541, 12, "source is! _Future");
        this[_setPendingComplete]();
        try {
          source.then(T$.Null(), dart.fn(value => {
            if (!dart.test(this[_isPendingComplete])) dart.assertFailed(null, I[81], 547, 16, "_isPendingComplete");
            this[_clearPendingComplete]();
            try {
              this[_completeWithValue](T[_as](value));
            } catch (t$36$35e) {
              let error = dart.getThrown(t$36$35e);
              let stackTrace = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](error)) {
                this[_completeError](error, stackTrace);
              } else
                throw t$36$35e;
            }
          }, T$0.dynamicToNull()), {onError: dart.fn((error, stackTrace) => {
              if (error == null) dart.nullFailed(I[81], 554, 27, "error");
              if (stackTrace == null) dart.nullFailed(I[81], 554, 45, "stackTrace");
              if (!dart.test(this[_isPendingComplete])) dart.assertFailed(null, I[81], 555, 16, "_isPendingComplete");
              this[_completeError](error, stackTrace);
            }, T$.ObjectAndStackTraceToNull())});
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            async.scheduleMicrotask(dart.fn(() => {
              this[_completeError](e, s);
            }, T$.VoidTovoid()));
          } else
            throw t$36$35e;
        }
      }
      static _chainCoreFutureSync(source, target) {
        let t$3692;
        if (source == null) dart.nullFailed(I[81], 575, 44, "source");
        if (target == null) dart.nullFailed(I[81], 575, 60, "target");
        if (!dart.test(target[_mayAddListener])) dart.assertFailed(null, I[81], 576, 12, "target._mayAddListener");
        while (dart.test(source[_isChained])) {
          source = source[_chainSource];
        }
        if (source == target) {
          target[_asyncCompleteError](new core.ArgumentError.value(source, null, "Cannot complete a future with itself"), core.StackTrace.current);
          return;
        }
        t$3692 = source;
        t$3692[_state] = (dart.notNull(t$3692[_state]) | (dart.notNull(target[_state]) & 1) >>> 0) >>> 0;
        if (dart.test(source[_isComplete])) {
          let listeners = target[_removeListeners]();
          target[_cloneResult](source);
          async._Future._propagateToListeners(target, listeners);
        } else {
          let listeners = T$1._FutureListenerN()[_as](target[_resultOrListeners]);
          target[_setChained](source);
          source[_prependListeners](listeners);
        }
      }
      static _chainCoreFutureAsync(source, target) {
        if (source == null) dart.nullFailed(I[81], 605, 45, "source");
        if (target == null) dart.nullFailed(I[81], 605, 61, "target");
        if (!dart.test(target[_mayAddListener])) dart.assertFailed(null, I[81], 606, 12, "target._mayAddListener");
        while (dart.test(source[_isChained])) {
          source = source[_chainSource];
        }
        if (source == target) {
          target[_asyncCompleteError](new core.ArgumentError.value(source, null, "Cannot complete a future with itself"), core.StackTrace.current);
          return;
        }
        if (!dart.test(source[_isComplete])) {
          let listeners = T$1._FutureListenerN()[_as](target[_resultOrListeners]);
          target[_setChained](source);
          source[_prependListeners](listeners);
          return;
        }
        if (!dart.test(source[_hasError]) && target[_resultOrListeners] == null) {
          target[_cloneResult](source);
          return;
        }
        target[_setPendingComplete]();
        target[_zone$].scheduleMicrotask(dart.fn(() => {
          async._Future._chainCoreFutureSync(source, target);
        }, T$.VoidTovoid()));
      }
      [_complete](value) {
        __t$FutureOrOfT()[_as](value);
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 647, 12, "!_isComplete");
        if (__t$FutureOfT()[_is](value)) {
          if (__t$_FutureOfT()[_is](value)) {
            async._Future._chainCoreFutureSync(value, this);
          } else {
            this[_chainForeignFuture](value);
          }
        } else {
          let listeners = this[_removeListeners]();
          this[_setValue](value);
          async._Future._propagateToListeners(this, listeners);
        }
      }
      [_completeWithValue](value) {
        T[_as](value);
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 662, 12, "!_isComplete");
        let listeners = this[_removeListeners]();
        this[_setValue](value);
        async._Future._propagateToListeners(this, listeners);
      }
      [_completeError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[81], 669, 30, "error");
        if (stackTrace == null) dart.nullFailed(I[81], 669, 48, "stackTrace");
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 670, 12, "!_isComplete");
        let listeners = this[_removeListeners]();
        this[_setError](error, stackTrace);
        async._Future._propagateToListeners(this, listeners);
      }
      [_asyncComplete](value) {
        __t$FutureOrOfT()[_as](value);
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 679, 12, "!_isComplete");
        if (__t$FutureOfT()[_is](value)) {
          this[_chainFuture](value);
          return;
        }
        this[_asyncCompleteWithValue](value);
      }
      [_asyncCompleteUnchecked](value) {
        if (!core.identical(__t$FutureOrOfT()[_as](value), value)) dart.assertFailed(null, I[81], 706, 12, "identical(value as FutureOr<T>, value)");
        let typedValue = value;
        if (__t$FutureOfT()[_is](typedValue)) {
          this[_chainFuture](typedValue);
          return;
        }
        this[_asyncCompleteWithValue](typedValue);
      }
      [_asyncCompleteUncheckedNoFuture](value) {
        if (!core.identical(T[_as](value), value)) dart.assertFailed(null, I[81], 729, 12, "identical(value as T, value)");
        this[_asyncCompleteWithValue](value);
      }
      [_asyncCompleteWithValue](value) {
        T[_as](value);
        this[_setPendingComplete]();
        this[_zone$].scheduleMicrotask(dart.fn(() => {
          this[_completeWithValue](value);
        }, T$.VoidTovoid()));
      }
      [_chainFuture](value) {
        if (value == null) dart.nullFailed(I[81], 744, 31, "value");
        if (!dart.test(this[_mayComplete])) dart.assertFailed(null, I[81], 745, 12, "_mayComplete");
        if (__t$_FutureOfT()[_is](value)) {
          async._Future._chainCoreFutureAsync(value, this);
          return;
        }
        this[_chainForeignFuture](value);
      }
      [_asyncCompleteError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[81], 755, 35, "error");
        if (stackTrace == null) dart.nullFailed(I[81], 755, 53, "stackTrace");
        if (!!dart.test(this[_isComplete])) dart.assertFailed(null, I[81], 756, 12, "!_isComplete");
        this[_setPendingComplete]();
        this[_zone$].scheduleMicrotask(dart.fn(() => {
          this[_completeError](error, stackTrace);
        }, T$.VoidTovoid()));
      }
      static _propagateToListeners(source, listeners) {
        if (source == null) dart.nullFailed(I[81], 767, 15, "source");
        while (true) {
          if (!dart.test(source[_isComplete])) dart.assertFailed(null, I[81], 769, 14, "source._isComplete");
          let hasError = source[_hasError];
          if (listeners == null) {
            if (dart.test(hasError) && !dart.test(source[_ignoreError])) {
              let asyncError = source[_error];
              source[_zone$].handleUncaughtError(asyncError.error, asyncError.stackTrace);
            }
            return;
          }
          let listener = listeners;
          let nextListener = listener[_nextListener];
          while (nextListener != null) {
            listener[_nextListener] = null;
            async._Future._propagateToListeners(source, listener);
            listener = nextListener;
            nextListener = listener[_nextListener];
          }
          let sourceResult = source[_resultOrListeners];
          let listenerHasError = hasError;
          let listenerValueOrError = sourceResult;
          if (dart.test(hasError) || dart.test(listener.handlesValue) || dart.test(listener.handlesComplete)) {
            let zone = listener[_zone$];
            if (dart.test(hasError) && !dart.test(source[_zone$].inSameErrorZone(zone))) {
              let asyncError = source[_error];
              source[_zone$].handleUncaughtError(asyncError.error, asyncError.stackTrace);
              return;
            }
            let oldZone = null;
            if (async.Zone._current != zone) {
              oldZone = async.Zone._enter(zone);
            }
            function handleWhenCompleteCallback() {
              if (!!dart.test(listener.handlesValue)) dart.assertFailed(null, I[81], 827, 18, "!listener.handlesValue");
              if (!!dart.test(listener.handlesError)) dart.assertFailed(null, I[81], 828, 18, "!listener.handlesError");
              let completeResult = null;
              try {
                completeResult = listener.handleWhenComplete();
              } catch (t$36$35e) {
                let e = dart.getThrown(t$36$35e);
                let s = dart.stackTrace(t$36$35e);
                if (T$.Object()[_is](e)) {
                  if (dart.test(hasError) && core.identical(source[_error].error, e)) {
                    listenerValueOrError = source[_error];
                  } else {
                    listenerValueOrError = new async.AsyncError.new(e, s);
                  }
                  listenerHasError = true;
                  return;
                } else
                  throw t$36$35e;
              }
              if (T$0._Future()[_is](completeResult) && dart.test(completeResult[_isComplete])) {
                if (dart.test(completeResult[_hasError])) {
                  listenerValueOrError = completeResult[_error];
                  listenerHasError = true;
                }
                return;
              }
              if (T$0.Future()[_is](completeResult)) {
                let originalSource = source;
                listenerValueOrError = completeResult.then(T$.dynamic(), dart.fn(_ => originalSource, T$1.dynamicTo_Future()));
                listenerHasError = false;
              }
            }
            dart.fn(handleWhenCompleteCallback, T$.VoidTovoid());
            function handleValueCallback() {
              try {
                listenerValueOrError = listener.handleValue(sourceResult);
              } catch (t$36$35e) {
                let e = dart.getThrown(t$36$35e);
                let s = dart.stackTrace(t$36$35e);
                if (T$.Object()[_is](e)) {
                  listenerValueOrError = new async.AsyncError.new(e, s);
                  listenerHasError = true;
                } else
                  throw t$36$35e;
              }
            }
            dart.fn(handleValueCallback, T$.VoidTovoid());
            function handleError() {
              try {
                let asyncError = source[_error];
                if (dart.test(listener.matchesErrorTest(asyncError)) && dart.test(listener.hasErrorCallback)) {
                  listenerValueOrError = listener.handleError(asyncError);
                  listenerHasError = false;
                }
              } catch (t$36$35e) {
                let e = dart.getThrown(t$36$35e);
                let s = dart.stackTrace(t$36$35e);
                if (T$.Object()[_is](e)) {
                  if (core.identical(source[_error].error, e)) {
                    listenerValueOrError = source[_error];
                  } else {
                    listenerValueOrError = new async.AsyncError.new(e, s);
                  }
                  listenerHasError = true;
                } else
                  throw t$36$35e;
              }
            }
            dart.fn(handleError, T$.VoidTovoid());
            if (dart.test(listener.handlesComplete)) {
              handleWhenCompleteCallback();
            } else if (!dart.test(hasError)) {
              if (dart.test(listener.handlesValue)) {
                handleValueCallback();
              }
            } else {
              if (dart.test(listener.handlesError)) {
                handleError();
              }
            }
            if (oldZone != null) async.Zone._leave(oldZone);
            if (T$0.Future()[_is](listenerValueOrError) && dart.test(listener.shouldChain(T$0.Future()[_as](listenerValueOrError)))) {
              let chainSource = T$0.Future()[_as](listenerValueOrError);
              let result = listener.result;
              if (T$0._Future()[_is](chainSource)) {
                if (dart.test(chainSource[_isComplete])) {
                  listeners = result[_removeListeners]();
                  result[_cloneResult](chainSource);
                  source = chainSource;
                  continue;
                } else {
                  async._Future._chainCoreFutureSync(chainSource, result);
                }
              } else {
                result[_chainForeignFuture](chainSource);
              }
              return;
            }
          }
          let result = listener.result;
          listeners = result[_removeListeners]();
          if (!dart.test(listenerHasError)) {
            result[_setValue](listenerValueOrError);
          } else {
            let asyncError = T$1.AsyncError()[_as](listenerValueOrError);
            result[_setErrorObject](asyncError);
          }
          source = result;
        }
      }
      timeout(timeLimit, opts) {
        if (timeLimit == null) dart.nullFailed(I[81], 939, 30, "timeLimit");
        let onTimeout = opts && 'onTimeout' in opts ? opts.onTimeout : null;
        __t$VoidToNFutureOrOfT()[_as](onTimeout);
        if (dart.test(this[_isComplete])) return new (__t$_FutureOfT$()).immediate(this);
        let _future = new (__t$_FutureOfT$()).new();
        let timer = null;
        if (onTimeout == null) {
          timer = async.Timer.new(timeLimit, dart.fn(() => {
            _future[_completeError](new async.TimeoutException.new("Future not completed", timeLimit), core.StackTrace.empty);
          }, T$.VoidTovoid()));
        } else {
          let zone = async.Zone.current;
          let onTimeoutHandler = zone.registerCallback(__t$FutureOrOfT(), onTimeout);
          timer = async.Timer.new(timeLimit, dart.fn(() => {
            try {
              _future[_complete](zone.run(__t$FutureOrOfT(), onTimeoutHandler));
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                _future[_completeError](e, s);
              } else
                throw t$36$35e;
            }
          }, T$.VoidTovoid()));
        }
        this.then(T$.Null(), dart.fn(v => {
          if (dart.test(timer.isActive)) {
            timer.cancel();
            _future[_completeWithValue](v);
          }
        }, __t$TToNull()), {onError: dart.fn((e, s) => {
            if (e == null) dart.nullFailed(I[81], 968, 25, "e");
            if (s == null) dart.nullFailed(I[81], 968, 39, "s");
            if (dart.test(timer.isActive)) {
              timer.cancel();
              _future[_completeError](e, s);
            }
          }, T$.ObjectAndStackTraceToNull())});
        return _future;
      }
    }
    (_Future.new = function() {
      this[_state] = 0;
      this[_resultOrListeners] = null;
      this[_zone$] = async.Zone._current;
      this.$ti = this.$ti || __t$_FutureOfT();
      ;
    }).prototype = _Future.prototype;
    (_Future.immediate = function(result) {
      this[_state] = 0;
      this[_resultOrListeners] = null;
      this[_zone$] = async.Zone._current;
      this.$ti = this.$ti || __t$_FutureOfT();
      this[_asyncComplete](result);
    }).prototype = _Future.prototype;
    (_Future.zoneValue = function(value, _zone) {
      if (_zone == null) dart.nullFailed(I[81], 295, 35, "_zone");
      this[_state] = 0;
      this[_resultOrListeners] = null;
      this[_zone$] = _zone;
      this.$ti = this.$ti || __t$_FutureOfT();
      this[_setValue](value);
    }).prototype = _Future.prototype;
    (_Future.immediateError = function(error, stackTrace) {
      if (stackTrace == null) dart.nullFailed(I[81], 299, 48, "stackTrace");
      this[_state] = 0;
      this[_resultOrListeners] = null;
      this[_zone$] = async.Zone._current;
      this.$ti = this.$ti || __t$_FutureOfT();
      this[_asyncCompleteError](T$.Object()[_as](error), stackTrace);
    }).prototype = _Future.prototype;
    (_Future.value = function(value) {
      _Future.zoneValue.call(this, value, async.Zone._current);
    }).prototype = _Future.prototype;
    dart.addRtiResources(_Future, ["async|_Future", "async|Future"]);
    dart.setMethodSignature(_Future, () => dart.global.Object.setPrototypeOf({
      [_setChained]: T$1._FutureTovoid(),
      then: __t$Fn__ToFutureOfR(),
      [_thenAwait]: __t$FnAndFunctionToFutureOfE(),
      [_ignore]: T$.VoidTovoid(),
      catchError: __t$Function__ToFutureOfT(),
      [_safeOnError]: T$1.FnToFutureOfR(),
      whenComplete: __t$FnToFutureOfT(),
      asStream: __t$VoidToStreamOfT(),
      [_setPendingComplete]: T$.VoidTovoid(),
      [_clearPendingComplete]: T$.VoidTovoid(),
      [_setValue]: T$.ObjectNTovoid(),
      [_setErrorObject]: T$1.AsyncErrorTovoid(),
      [_setError]: T$.ObjectAndStackTraceTovoid(),
      [_cloneResult]: T$1._FutureTovoid(),
      [_addListener]: T$1._FutureListenerTovoid(),
      [_prependListeners]: T$1._FutureListenerNTovoid(),
      [_removeListeners]: T$1.VoidTo_FutureListenerN(),
      [_reverseListeners]: T$1._FutureListenerNTo_FutureListenerN(),
      [_chainForeignFuture]: T$1.FutureTovoid(),
      [_complete]: T$.ObjectNTovoid(),
      [_completeWithValue]: T$.ObjectNTovoid(),
      [_completeError]: T$.ObjectAndStackTraceTovoid(),
      [_asyncComplete]: T$.ObjectNTovoid(),
      [_asyncCompleteUnchecked]: T$.dynamicTovoid(),
      [_asyncCompleteUncheckedNoFuture]: T$.dynamicTovoid(),
      [_asyncCompleteWithValue]: T$.ObjectNTovoid(),
      [_chainFuture]: __t$FutureOfTTovoid(),
      [_asyncCompleteError]: T$.ObjectAndStackTraceTovoid(),
      timeout: __t$Duration__ToFutureOfT()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_Future))));
    dart.setMethodsDefaultTypeArgSignature(_Future, () => dart.global.Object.setPrototypeOf({
      then: [T$.dynamic()],
      [_thenAwait]: [T$.dynamic()],
      [_safeOnError]: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_Future))));
    dart.setStaticMethodSignature(_Future, () => ['_chainCoreFutureSync', '_chainCoreFutureAsync', '_propagateToListeners']);
    dart.setGetterSignature(_Future, () => dart.global.Object.setPrototypeOf({
      [_mayComplete]: T$.bool(),
      [_isPendingComplete]: T$.bool(),
      [_mayAddListener]: T$.bool(),
      [_isChained]: T$.bool(),
      [_isComplete]: T$.bool(),
      [_hasError]: T$.bool(),
      [_ignoreError]: T$.bool(),
      [_error]: T$1.AsyncError(),
      [_chainSource]: T$0._Future()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_Future))));
    dart.setLibraryUri(_Future, I[39]);
    dart.setFieldSignature(_Future, () => dart.global.Object.setPrototypeOf({
      [_state]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_zone$]: {type: T$1._Zone(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_resultOrListeners]: {type: T$.dynamic(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_Future))));
    dart.setStaticFieldSignature(_Future, () => ['_stateIncomplete', '_stateIgnoreError', '_statePendingComplete', '_stateChained', '_stateValue', '_stateError', '_completionStateMask']);
    return _Future;
  });
  async._Future = async._Future$();
  dart.defineLazy(async._Future, {
    /*async._Future._stateIncomplete*/get _stateIncomplete() {
      return 0;
    },
    /*async._Future._stateIgnoreError*/get _stateIgnoreError() {
      return 1;
    },
    /*async._Future._statePendingComplete*/get _statePendingComplete() {
      return 2;
    },
    /*async._Future._stateChained*/get _stateChained() {
      return 4;
    },
    /*async._Future._stateValue*/get _stateValue() {
      return 8;
    },
    /*async._Future._stateError*/get _stateError() {
      return 16;
    },
    /*async._Future._completionStateMask*/get _completionStateMask() {
      return 30;
    }
  }, false);
  async._AsyncCallbackEntry = class _AsyncCallbackEntry extends core.Object {
    static ['_#new#tearOff'](callback) {
      if (callback == null) dart.nullFailed(I[82], 12, 28, "callback");
      return new async._AsyncCallbackEntry.new(callback);
    }
  };
  (async._AsyncCallbackEntry.new = function(callback) {
    if (callback == null) dart.nullFailed(I[82], 12, 28, "callback");
    this.next = null;
    this.callback = callback;
    ;
  }).prototype = async._AsyncCallbackEntry.prototype;
  dart.addRtiResources(async._AsyncCallbackEntry, ["async|_AsyncCallbackEntry"]);
  dart.setLibraryUri(async._AsyncCallbackEntry, I[39]);
  dart.setFieldSignature(async._AsyncCallbackEntry, () => dart.global.Object.setPrototypeOf({
    callback: {type: T$.VoidTovoid(), isConst: false, isFinal: true},
    next: {type: T$1._AsyncCallbackEntryN(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(async._AsyncCallbackEntry))));
  async._AsyncRun = class _AsyncRun extends core.Object {
    static _initializeScheduleImmediate() {
      if (dart.global.scheduleImmediate != null) {
        return C[82] || CT.C82;
      }
      return C[83] || CT.C83;
    }
    static _scheduleImmediateJSOverride(callback) {
      if (callback == null) dart.nullFailed(I[73], 168, 60, "callback");
      dart.addAsyncCallback();
      dart.global.scheduleImmediate(() => {
        dart.removeAsyncCallback();
        callback();
      });
    }
    static _scheduleImmediateWithPromise(callback) {
      if (callback == null) dart.nullFailed(I[73], 177, 61, "callback");
      dart.addAsyncCallback();
      dart.global.Promise.resolve(null).then(() => {
        dart.removeAsyncCallback();
        callback();
      });
    }
    static _scheduleImmediate(callback) {
      if (callback == null) dart.nullFailed(I[73], 150, 50, "callback");
      async._AsyncRun._scheduleImmediateClosure(callback);
    }
    static ['_#new#tearOff']() {
      return new async._AsyncRun.new();
    }
  };
  (async._AsyncRun.new = function() {
    ;
  }).prototype = async._AsyncRun.prototype;
  dart.addRtiResources(async._AsyncRun, ["async|_AsyncRun"]);
  dart.setStaticMethodSignature(async._AsyncRun, () => ['_initializeScheduleImmediate', '_scheduleImmediateJSOverride', '_scheduleImmediateWithPromise', '_scheduleImmediate']);
  dart.setLibraryUri(async._AsyncRun, I[39]);
  dart.setStaticFieldSignature(async._AsyncRun, () => ['_scheduleImmediateClosure']);
  dart.defineLazy(async._AsyncRun, {
    /*async._AsyncRun._scheduleImmediateClosure*/get _scheduleImmediateClosure() {
      return async._AsyncRun._initializeScheduleImmediate();
    }
  }, false);
  async.StreamSubscription$ = dart.generic(T => {
    var __t$StreamSubscriptionOfT = () => (__t$StreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>")))();
    class StreamSubscription extends core.Object {}
    (StreamSubscription.new = function() {
      this.$ti = this.$ti || __t$StreamSubscriptionOfT();
      ;
    }).prototype = StreamSubscription.prototype;
    dart.addRtiResources(StreamSubscription, ["async|StreamSubscription"]);
    dart.setLibraryUri(StreamSubscription, I[39]);
    return StreamSubscription;
  });
  async.StreamSubscription = async.StreamSubscription$();
  async.EventSink$ = dart.generic(T => {
    var __t$EventSinkOfT = () => (__t$EventSinkOfT = dart.constFn(T[_eval]("async|EventSink<0>")))();
    class EventSink extends core.Object {}
    (EventSink.new = function() {
      this.$ti = this.$ti || __t$EventSinkOfT();
      ;
    }).prototype = EventSink.prototype;
    dart.addRtiResources(EventSink, ["async|EventSink", "core|Sink"]);
    dart.setLibraryUri(EventSink, I[39]);
    return EventSink;
  });
  async.EventSink = async.EventSink$();
  var _stream = dart.privateName(async, "StreamView._stream");
  var _stream$ = dart.privateName(async, "_stream");
  async.StreamView$ = dart.generic(T => {
    var __t$StreamViewOfT = () => (__t$StreamViewOfT = dart.constFn(T[_eval]("async|StreamView<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$StreamOfT$ = () => (__t$StreamOfT$ = dart.constFn(async.Stream$(T)))();
    class StreamView extends __t$StreamOfT$() {
      get [_stream$]() {
        return this[_stream];
      }
      set [_stream$](value) {
        super[_stream$] = value;
      }
      static ['_#new#tearOff'](T, stream) {
        if (stream == null) dart.nullFailed(I[38], 2211, 30, "stream");
        return new (async.StreamView$(T)).new(stream);
      }
      get isBroadcast() {
        return this[_stream$].isBroadcast;
      }
      asBroadcastStream(opts) {
        let onListen = opts && 'onListen' in opts ? opts.onListen : null;
        let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
        return this[_stream$].asBroadcastStream({onListen: onListen, onCancel: onCancel});
      }
      listen(onData, opts) {
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        return this[_stream$].listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
      }
    }
    (StreamView.new = function(stream) {
      if (stream == null) dart.nullFailed(I[38], 2211, 30, "stream");
      this[_stream] = stream;
      this.$ti = this.$ti || __t$StreamViewOfT();
      dart.global.Object.getPrototypeOf(StreamView).new.call(this);
      ;
    }).prototype = StreamView.prototype;
    dart.addRtiResources(StreamView, ["async|StreamView"]);
    dart.setMethodSignature(StreamView, () => dart.global.Object.setPrototypeOf({listen: __t$Fn__ToStreamSubscriptionOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(StreamView))));
    dart.setLibraryUri(StreamView, I[39]);
    dart.setFieldSignature(StreamView, () => dart.global.Object.setPrototypeOf({[_stream$]: {type: __t$StreamOfT(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(StreamView))));
    return StreamView;
  });
  async.StreamView = async.StreamView$();
  async.StreamConsumer$ = dart.generic(S => {
    var __t$StreamConsumerOfS = () => (__t$StreamConsumerOfS = dart.constFn(S[_eval]("async|StreamConsumer<0>")))();
    class StreamConsumer extends core.Object {}
    (StreamConsumer.new = function() {
      this.$ti = this.$ti || __t$StreamConsumerOfS();
      ;
    }).prototype = StreamConsumer.prototype;
    dart.addRtiResources(StreamConsumer, ["async|StreamConsumer"]);
    dart.setLibraryUri(StreamConsumer, I[39]);
    return StreamConsumer;
  });
  async.StreamConsumer = async.StreamConsumer$();
  async.StreamSink$ = dart.generic(S => {
    var __t$StreamSinkOfS = () => (__t$StreamSinkOfS = dart.constFn(S[_eval]("async|StreamSink<0>")))();
    class StreamSink extends core.Object {}
    (StreamSink.new = function() {
      this.$ti = this.$ti || __t$StreamSinkOfS();
      ;
    }).prototype = StreamSink.prototype;
    dart.addRtiResources(StreamSink, ["async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setLibraryUri(StreamSink, I[39]);
    return StreamSink;
  });
  async.StreamSink = async.StreamSink$();
  async.StreamTransformer$ = dart.generic((S, T) => {
    class StreamTransformer extends core.Object {
      static ['_#new#tearOff'](S, T, onListen) {
        if (onListen == null) dart.nullFailed(I[38], 2410, 33, "onListen");
        return new (async._StreamSubscriptionTransformer$(S, T)).new(onListen);
      }
      static ['_#fromHandlers#tearOff'](S, T, opts) {
        let handleData = opts && 'handleData' in opts ? opts.handleData : null;
        let handleError = opts && 'handleError' in opts ? opts.handleError : null;
        let handleDone = opts && 'handleDone' in opts ? opts.handleDone : null;
        return new (async._StreamHandlerTransformer$(S, T)).new({handleData: handleData, handleError: handleError, handleDone: handleDone});
      }
      static ['_#fromBind#tearOff'](S, T, bind) {
        if (bind == null) dart.nullFailed(I[38], 2514, 68, "bind");
        return new (async._StreamBindTransformer$(S, T)).new(bind);
      }
      static castFrom(SS, ST, TS, TT, source) {
        if (source == null) dart.nullFailed(I[38], 2526, 33, "source");
        return new (_internal.CastStreamTransformer$(SS, ST, TS, TT)).new(source);
      }
    }
    (StreamTransformer[dart.mixinNew] = function() {
    }).prototype = StreamTransformer.prototype;
    dart.addRtiResources(StreamTransformer, ["async|StreamTransformer"]);
    dart.setStaticMethodSignature(StreamTransformer, () => ['new', 'fromHandlers', 'fromBind', 'castFrom']);
    dart.setLibraryUri(StreamTransformer, I[39]);
    return StreamTransformer;
  });
  async.StreamTransformer = async.StreamTransformer$();
  async.StreamIterator$ = dart.generic(T => {
    class StreamIterator extends core.Object {
      static new(stream) {
        if (stream == null) dart.nullFailed(I[38], 2590, 36, "stream");
        return new (async._StreamIterator$(T)).new(stream);
      }
      static ['_#new#tearOff'](T, stream) {
        if (stream == null) dart.nullFailed(I[38], 2590, 36, "stream");
        return async.StreamIterator$(T).new(stream);
      }
    }
    (StreamIterator[dart.mixinNew] = function() {
    }).prototype = StreamIterator.prototype;
    dart.addRtiResources(StreamIterator, ["async|StreamIterator"]);
    dart.setStaticMethodSignature(StreamIterator, () => ['new']);
    dart.setLibraryUri(StreamIterator, I[39]);
    return StreamIterator;
  });
  async.StreamIterator = async.StreamIterator$();
  var _ensureSink = dart.privateName(async, "_ensureSink");
  async._ControllerEventSinkWrapper$ = dart.generic(T => {
    var __t$_ControllerEventSinkWrapperOfT = () => (__t$_ControllerEventSinkWrapperOfT = dart.constFn(T[_eval]("async|_ControllerEventSinkWrapper<0>")))();
    class _ControllerEventSinkWrapper extends core.Object {
      static ['_#new#tearOff'](T, _sink) {
        return new (async._ControllerEventSinkWrapper$(T)).new(_sink);
      }
      [_ensureSink]() {
        let sink = this[_sink$];
        if (sink == null) dart.throw(new core.StateError.new("Sink not available"));
        return sink;
      }
      add(data) {
        T[_as](data);
        this[_ensureSink]().add(data);
      }
      addError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[38], 2657, 17, "error");
        this[_ensureSink]().addError(error, stackTrace);
      }
      close() {
        this[_ensureSink]().close();
      }
    }
    (_ControllerEventSinkWrapper.new = function(_sink) {
      this[_sink$] = _sink;
      this.$ti = this.$ti || __t$_ControllerEventSinkWrapperOfT();
      ;
    }).prototype = _ControllerEventSinkWrapper.prototype;
    dart.addRtiResources(_ControllerEventSinkWrapper, ["async|_ControllerEventSinkWrapper", "async|EventSink", "core|Sink"]);
    dart.setMethodSignature(_ControllerEventSinkWrapper, () => dart.global.Object.setPrototypeOf({
      [_ensureSink]: T$1.VoidToEventSink(),
      add: T$.ObjectNTovoid(),
      addError: T$1.ObjectAndStackTraceNTovoid(),
      close: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_ControllerEventSinkWrapper))));
    dart.setLibraryUri(_ControllerEventSinkWrapper, I[39]);
    dart.setFieldSignature(_ControllerEventSinkWrapper, () => dart.global.Object.setPrototypeOf({[_sink$]: {type: T$1.EventSinkN(), isConst: false, isFinal: false, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_ControllerEventSinkWrapper))));
    return _ControllerEventSinkWrapper;
  });
  async._ControllerEventSinkWrapper = async._ControllerEventSinkWrapper$();
  async.MultiStreamController$ = dart.generic(T => {
    var __t$MultiStreamControllerOfT = () => (__t$MultiStreamControllerOfT = dart.constFn(T[_eval]("async|MultiStreamController<0>")))();
    class MultiStreamController extends core.Object {}
    (MultiStreamController.new = function() {
      this.$ti = this.$ti || __t$MultiStreamControllerOfT();
      ;
    }).prototype = MultiStreamController.prototype;
    dart.addRtiResources(MultiStreamController, ["async|MultiStreamController", "async|StreamController", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setLibraryUri(MultiStreamController, I[39]);
    return MultiStreamController;
  });
  async.MultiStreamController = async.MultiStreamController$();
  async.StreamController$ = dart.generic(T => {
    class StreamController extends core.Object {
      static new(opts) {
        let onListen = opts && 'onListen' in opts ? opts.onListen : null;
        let onPause = opts && 'onPause' in opts ? opts.onPause : null;
        let onResume = opts && 'onResume' in opts ? opts.onResume : null;
        let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
        let sync = opts && 'sync' in opts ? opts.sync : false;
        if (sync == null) dart.nullFailed(I[76], 116, 12, "sync");
        return dart.test(sync) ? new (async._SyncStreamController$(T)).new(onListen, onPause, onResume, onCancel) : new (async._AsyncStreamController$(T)).new(onListen, onPause, onResume, onCancel);
      }
      static ['_#new#tearOff'](T, opts) {
        let onListen = opts && 'onListen' in opts ? opts.onListen : null;
        let onPause = opts && 'onPause' in opts ? opts.onPause : null;
        let onResume = opts && 'onResume' in opts ? opts.onResume : null;
        let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
        let sync = opts && 'sync' in opts ? opts.sync : false;
        if (sync == null) dart.nullFailed(I[76], 116, 12, "sync");
        return async.StreamController$(T).new({onListen: onListen, onPause: onPause, onResume: onResume, onCancel: onCancel, sync: sync});
      }
      static broadcast(opts) {
        let onListen = opts && 'onListen' in opts ? opts.onListen : null;
        let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
        let sync = opts && 'sync' in opts ? opts.sync : false;
        if (sync == null) dart.nullFailed(I[76], 172, 49, "sync");
        return dart.test(sync) ? new (async._SyncBroadcastStreamController$(T)).new(onListen, onCancel) : new (async._AsyncBroadcastStreamController$(T)).new(onListen, onCancel);
      }
      static ['_#broadcast#tearOff'](T, opts) {
        let onListen = opts && 'onListen' in opts ? opts.onListen : null;
        let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
        let sync = opts && 'sync' in opts ? opts.sync : false;
        if (sync == null) dart.nullFailed(I[76], 172, 49, "sync");
        return async.StreamController$(T).broadcast({onListen: onListen, onCancel: onCancel, sync: sync});
      }
    }
    (StreamController[dart.mixinNew] = function() {
    }).prototype = StreamController.prototype;
    dart.addRtiResources(StreamController, ["async|StreamController", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setStaticMethodSignature(StreamController, () => ['new', 'broadcast']);
    dart.setLibraryUri(StreamController, I[39]);
    return StreamController;
  });
  async.StreamController = async.StreamController$();
  async.SynchronousStreamController$ = dart.generic(T => {
    var __t$SynchronousStreamControllerOfT = () => (__t$SynchronousStreamControllerOfT = dart.constFn(T[_eval]("async|SynchronousStreamController<0>")))();
    class SynchronousStreamController extends core.Object {}
    (SynchronousStreamController.new = function() {
      this.$ti = this.$ti || __t$SynchronousStreamControllerOfT();
      ;
    }).prototype = SynchronousStreamController.prototype;
    dart.addRtiResources(SynchronousStreamController, ["async|SynchronousStreamController", "async|StreamController", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setLibraryUri(SynchronousStreamController, I[39]);
    return SynchronousStreamController;
  });
  async.SynchronousStreamController = async.SynchronousStreamController$();
  async._StreamControllerLifecycle$ = dart.generic(T => {
    var __t$_StreamControllerLifecycleOfT = () => (__t$_StreamControllerLifecycleOfT = dart.constFn(T[_eval]("async|_StreamControllerLifecycle<0>")))();
    var __t$StreamSubscriptionOfT = () => (__t$StreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>")))();
    class _StreamControllerLifecycle extends core.Object {
      [_recordPause](subscription) {
        __t$StreamSubscriptionOfT()[_as](subscription);
        if (subscription == null) dart.nullFailed(I[76], 404, 43, "subscription");
      }
      [_recordResume](subscription) {
        __t$StreamSubscriptionOfT()[_as](subscription);
        if (subscription == null) dart.nullFailed(I[76], 405, 44, "subscription");
      }
      [_recordCancel](subscription) {
        __t$StreamSubscriptionOfT()[_as](subscription);
        if (subscription == null) dart.nullFailed(I[76], 406, 53, "subscription");
        return null;
      }
    }
    (_StreamControllerLifecycle.new = function() {
      this.$ti = this.$ti || __t$_StreamControllerLifecycleOfT();
      ;
    }).prototype = _StreamControllerLifecycle.prototype;
    dart.addRtiResources(_StreamControllerLifecycle, ["async|_StreamControllerLifecycle"]);
    dart.setMethodSignature(_StreamControllerLifecycle, () => dart.global.Object.setPrototypeOf({
      [_recordPause]: T$.ObjectNTovoid(),
      [_recordResume]: T$.ObjectNTovoid(),
      [_recordCancel]: T$1.ObjectNToFutureNOfvoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamControllerLifecycle))));
    dart.setLibraryUri(_StreamControllerLifecycle, I[39]);
    return _StreamControllerLifecycle;
  });
  async._StreamControllerLifecycle = async._StreamControllerLifecycle$();
  async._StreamControllerBase$ = dart.generic(T => {
    var __t$_StreamControllerBaseOfT = () => (__t$_StreamControllerBaseOfT = dart.constFn(T[_eval]("async|_StreamControllerBase<0>")))();
    class _StreamControllerBase extends core.Object {}
    (_StreamControllerBase.new = function() {
      this.$ti = this.$ti || __t$_StreamControllerBaseOfT();
      ;
    }).prototype = _StreamControllerBase.prototype;
    dart.addRtiResources(_StreamControllerBase, ["async|_StreamControllerBase", "async|StreamController", "async|_StreamControllerLifecycle", "async|_EventSink", "async|_EventDispatch", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setLibraryUri(_StreamControllerBase, I[39]);
    return _StreamControllerBase;
  });
  async._StreamControllerBase = async._StreamControllerBase$();
  var _varData$ = dart.privateName(async, "_varData");
  var _isInitialState = dart.privateName(async, "_isInitialState");
  var _subscription = dart.privateName(async, "_subscription");
  var _pendingEvents = dart.privateName(async, "_pendingEvents");
  var _ensurePendingEvents = dart.privateName(async, "_ensurePendingEvents");
  var _badEventState = dart.privateName(async, "_badEventState");
  async._StreamController$ = dart.generic(T => {
    var __t$_StreamControllerOfT = () => (__t$_StreamControllerOfT = dart.constFn(T[_eval]("async|_StreamController<0>")))();
    var __t$_PendingEventsNOfT = () => (__t$_PendingEventsNOfT = dart.constFn(T[_eval]("async|_PendingEvents<0>?")))();
    var __t$_StreamControllerAddStreamStateOfT = () => (__t$_StreamControllerAddStreamStateOfT = dart.constFn(T[_eval]("async|_StreamControllerAddStreamState<0>")))();
    var __t$_PendingEventsOfT = () => (__t$_PendingEventsOfT = dart.constFn(T[_eval]("async|_PendingEvents<0>")))();
    var __t$_ControllerSubscriptionOfT = () => (__t$_ControllerSubscriptionOfT = dart.constFn(T[_eval]("async|_ControllerSubscription<0>")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$StreamSinkOfT = () => (__t$StreamSinkOfT = dart.constFn(T[_eval]("async|StreamSink<0>")))();
    var __t$VoidTo_PendingEventsOfT = () => (__t$VoidTo_PendingEventsOfT = dart.constFn(T[_eval]("async|_PendingEvents<0>()")))();
    var __t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT = () => (__t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?,core|Function?,~()?,core|bool)")))();
    var __t$StreamSubscriptionOfTToFutureNOfvoid = () => (__t$StreamSubscriptionOfTToFutureNOfvoid = dart.constFn(T[_eval]("async|Future<~>?(async|StreamSubscription<0>)")))();
    var __t$StreamSubscriptionOfTTovoid = () => (__t$StreamSubscriptionOfTTovoid = dart.constFn(T[_eval]("~(async|StreamSubscription<0>)")))();
    var __t$_ControllerStreamOfT = () => (__t$_ControllerStreamOfT = dart.constFn(async._ControllerStream$(T)))();
    var __t$_StreamSinkWrapperOfT = () => (__t$_StreamSinkWrapperOfT = dart.constFn(async._StreamSinkWrapper$(T)))();
    var __t$_PendingEventsOfT$ = () => (__t$_PendingEventsOfT$ = dart.constFn(async._PendingEvents$(T)))();
    var __t$_StreamControllerAddStreamStateOfT$ = () => (__t$_StreamControllerAddStreamStateOfT$ = dart.constFn(async._StreamControllerAddStreamState$(T)))();
    var __t$_DelayedDataOfT = () => (__t$_DelayedDataOfT = dart.constFn(async._DelayedData$(T)))();
    var __t$_ControllerSubscriptionOfT$ = () => (__t$_ControllerSubscriptionOfT$ = dart.constFn(async._ControllerSubscription$(T)))();
    class _StreamController extends core.Object {
      get stream() {
        return new (__t$_ControllerStreamOfT()).new(this);
      }
      get sink() {
        return new (__t$_StreamSinkWrapperOfT()).new(this);
      }
      get [_isCanceled]() {
        return (dart.notNull(this[_state]) & 2) !== 0;
      }
      get hasListener() {
        return (dart.notNull(this[_state]) & 1) !== 0;
      }
      get [_isInitialState]() {
        return (dart.notNull(this[_state]) & 3) >>> 0 === 0;
      }
      get isClosed() {
        return (dart.notNull(this[_state]) & 4) !== 0;
      }
      get isPaused() {
        return dart.test(this.hasListener) ? this[_subscription][_isInputPaused] : !dart.test(this[_isCanceled]);
      }
      get [_isAddingStream]() {
        return (dart.notNull(this[_state]) & 8) !== 0;
      }
      get [_mayAddEvent]() {
        return dart.notNull(this[_state]) < 4;
      }
      get [_pendingEvents]() {
        if (!dart.test(this[_isInitialState])) dart.assertFailed(null, I[76], 531, 12, "_isInitialState");
        if (!dart.test(this[_isAddingStream])) {
          return __t$_PendingEventsNOfT()[_as](this[_varData$]);
        }
        let state = __t$_StreamControllerAddStreamStateOfT()[_as](this[_varData$]);
        return __t$_PendingEventsNOfT()[_as](state[_varData$]);
      }
      [_ensurePendingEvents]() {
        if (!dart.test(this[_isInitialState])) dart.assertFailed(null, I[76], 541, 12, "_isInitialState");
        if (!dart.test(this[_isAddingStream])) {
          let events = this[_varData$];
          if (events == null) {
            this[_varData$] = events = new (__t$_PendingEventsOfT$()).new();
          }
          return __t$_PendingEventsOfT()[_as](events);
        }
        let state = __t$_StreamControllerAddStreamStateOfT()[_as](this[_varData$]);
        let events = state[_varData$];
        if (events == null) {
          state[_varData$] = events = new (__t$_PendingEventsOfT$()).new();
        }
        return __t$_PendingEventsOfT()[_as](events);
      }
      get [_subscription]() {
        if (!dart.test(this.hasListener)) dart.assertFailed(null, I[76], 561, 12, "hasListener");
        let varData = this[_varData$];
        if (dart.test(this[_isAddingStream])) {
          let streamState = T$1._StreamControllerAddStreamStateOfObjectN()[_as](varData);
          varData = streamState[_varData$];
        }
        return __t$_ControllerSubscriptionOfT()[_as](varData);
      }
      [_badEventState]() {
        if (dart.test(this.isClosed)) {
          return new core.StateError.new("Cannot add event after closing");
        }
        if (!dart.test(this[_isAddingStream])) dart.assertFailed(null, I[76], 577, 12, "_isAddingStream");
        return new core.StateError.new("Cannot add event while adding a stream");
      }
      addStream(source, opts) {
        let t$3696;
        __t$StreamOfT()[_as](source);
        if (source == null) dart.nullFailed(I[76], 582, 30, "source");
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_badEventState]());
        if (dart.test(this[_isCanceled])) return new async._Future.immediate(null);
        let addState = new (__t$_StreamControllerAddStreamStateOfT$()).new(this, this[_varData$], source, (t$3696 = cancelOnError, t$3696 == null ? false : t$3696));
        this[_varData$] = addState;
        this[_state] = (dart.notNull(this[_state]) | 8) >>> 0;
        return addState.addStreamFuture;
      }
      get done() {
        return this[_ensureDoneFuture]();
      }
      [_ensureDoneFuture]() {
        let t$3696;
        t$3696 = this[_doneFuture];
        return t$3696 == null ? this[_doneFuture] = dart.test(this[_isCanceled]) ? async.Future._nullFuture : new (G._FutureOfvoid()).new() : t$3696;
      }
      add(value) {
        T[_as](value);
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_badEventState]());
        this[_add](value);
      }
      addError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[76], 610, 24, "error");
        _internal.checkNotNullable(T$.Object(), error, "error");
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_badEventState]());
        let replacement = async.Zone.current.errorCallback(error, stackTrace);
        if (replacement != null) {
          error = replacement.error;
          stackTrace = replacement.stackTrace;
        } else {
          stackTrace == null ? stackTrace = async.AsyncError.defaultStackTrace(error) : null;
        }
        this[_addError](error, stackTrace);
      }
      close() {
        if (dart.test(this.isClosed)) {
          return this[_ensureDoneFuture]();
        }
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_badEventState]());
        this[_closeUnchecked]();
        return this[_ensureDoneFuture]();
      }
      [_closeUnchecked]() {
        this[_state] = (dart.notNull(this[_state]) | 4) >>> 0;
        if (dart.test(this.hasListener)) {
          this[_sendDone]();
        } else if (dart.test(this[_isInitialState])) {
          this[_ensurePendingEvents]().add(C[79] || CT.C79);
        }
      }
      [_add](value) {
        T[_as](value);
        if (dart.test(this.hasListener)) {
          this[_sendData](value);
        } else if (dart.test(this[_isInitialState])) {
          this[_ensurePendingEvents]().add(new (__t$_DelayedDataOfT()).new(value));
        }
      }
      [_addError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[76], 664, 25, "error");
        if (stackTrace == null) dart.nullFailed(I[76], 664, 43, "stackTrace");
        if (dart.test(this.hasListener)) {
          this[_sendError](error, stackTrace);
        } else if (dart.test(this[_isInitialState])) {
          this[_ensurePendingEvents]().add(new async._DelayedError.new(error, stackTrace));
        }
      }
      [_close]() {
        if (!dart.test(this[_isAddingStream])) dart.assertFailed(null, I[76], 674, 12, "_isAddingStream");
        let addState = __t$_StreamControllerAddStreamStateOfT()[_as](this[_varData$]);
        this[_varData$] = addState[_varData$];
        this[_state] = (dart.notNull(this[_state]) & ~8 >>> 0) >>> 0;
        addState.complete();
      }
      [_subscribe](onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[76], 684, 28, "cancelOnError");
        if (!dart.test(this[_isInitialState])) {
          dart.throw(new core.StateError.new("Stream has already been listened to."));
        }
        let subscription = new (__t$_ControllerSubscriptionOfT$()).new(this, onData, onError, onDone, cancelOnError);
        let pendingEvents = this[_pendingEvents];
        this[_state] = (dart.notNull(this[_state]) | 1) >>> 0;
        if (dart.test(this[_isAddingStream])) {
          let addState = __t$_StreamControllerAddStreamStateOfT()[_as](this[_varData$]);
          addState[_varData$] = subscription;
          addState.resume();
        } else {
          this[_varData$] = subscription;
        }
        subscription[_setPendingEvents](pendingEvents);
        subscription[_guardCallback](dart.fn(() => {
          async._runGuarded(this.onListen);
        }, T$.VoidTovoid()));
        return subscription;
      }
      [_recordCancel](subscription) {
        let t$3697;
        if (subscription == null) dart.nullFailed(I[76], 708, 53, "subscription");
        let result = null;
        if (dart.test(this[_isAddingStream])) {
          let addState = __t$_StreamControllerAddStreamStateOfT()[_as](this[_varData$]);
          result = addState.cancel();
        }
        this[_varData$] = null;
        this[_state] = (dart.notNull(this[_state]) & ~(1 | 8) >>> 0 | 2) >>> 0;
        let onCancel = this.onCancel;
        if (onCancel != null) {
          if (result == null) {
            try {
              let cancelResult = onCancel();
              if (T$1.FutureOfvoid()[_is](cancelResult)) {
                result = cancelResult;
              }
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              let s = dart.stackTrace(t$36$35e);
              if (T$.Object()[_is](e)) {
                result = (t$3697 = new (G._FutureOfvoid()).new(), (() => {
                  t$3697[_asyncCompleteError](e, s);
                  return t$3697;
                })());
              } else
                throw t$36$35e;
            }
          } else {
            result = result.whenComplete(onCancel);
          }
        }
        const complete = () => {
          let doneFuture = this[_doneFuture];
          if (doneFuture != null && dart.test(doneFuture[_mayComplete])) {
            doneFuture[_asyncComplete](null);
          }
        };
        dart.fn(complete, T$.VoidTovoid());
        if (result != null) {
          result = result.whenComplete(complete);
        } else {
          complete();
        }
        return result;
      }
      [_recordPause](subscription) {
        if (subscription == null) dart.nullFailed(I[76], 764, 43, "subscription");
        if (dart.test(this[_isAddingStream])) {
          let addState = __t$_StreamControllerAddStreamStateOfT()[_as](this[_varData$]);
          addState.pause();
        }
        async._runGuarded(this.onPause);
      }
      [_recordResume](subscription) {
        if (subscription == null) dart.nullFailed(I[76], 772, 44, "subscription");
        if (dart.test(this[_isAddingStream])) {
          let addState = __t$_StreamControllerAddStreamStateOfT()[_as](this[_varData$]);
          addState.resume();
        }
        async._runGuarded(this.onResume);
      }
    }
    (_StreamController.new = function(onListen, onPause, onResume, onCancel) {
      this[_varData$] = null;
      this[_state] = 0;
      this[_doneFuture] = null;
      this.onListen = onListen;
      this.onPause = onPause;
      this.onResume = onResume;
      this.onCancel = onCancel;
      this.$ti = this.$ti || __t$_StreamControllerOfT();
      ;
    }).prototype = _StreamController.prototype;
    dart.addRtiResources(_StreamController, ["async|_StreamController", "async|_StreamControllerBase", "async|StreamController", "async|_StreamControllerLifecycle", "async|_EventSink", "async|_EventDispatch", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_StreamController, () => dart.global.Object.setPrototypeOf({
      [_ensurePendingEvents]: __t$VoidTo_PendingEventsOfT(),
      [_badEventState]: T$0.VoidToError(),
      addStream: T$1.ObjectN__ToFuture(),
      [_ensureDoneFuture]: T$.VoidToFutureOfvoid(),
      add: T$.ObjectNTovoid(),
      addError: T$1.ObjectAndStackTraceNTovoid(),
      close: T$.VoidToFuture(),
      [_closeUnchecked]: T$.VoidTovoid(),
      [_add]: T$.ObjectNTovoid(),
      [_addError]: T$.ObjectAndStackTraceTovoid(),
      [_close]: T$.VoidTovoid(),
      [_subscribe]: __t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT(),
      [_recordCancel]: __t$StreamSubscriptionOfTToFutureNOfvoid(),
      [_recordPause]: __t$StreamSubscriptionOfTTovoid(),
      [_recordResume]: __t$StreamSubscriptionOfTTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamController))));
    dart.setGetterSignature(_StreamController, () => dart.global.Object.setPrototypeOf({
      stream: __t$StreamOfT(),
      sink: __t$StreamSinkOfT(),
      [_isCanceled]: T$.bool(),
      hasListener: T$.bool(),
      [_isInitialState]: T$.bool(),
      isClosed: T$.bool(),
      isPaused: T$.bool(),
      [_isAddingStream]: T$.bool(),
      [_mayAddEvent]: T$.bool(),
      [_pendingEvents]: __t$_PendingEventsNOfT(),
      [_subscription]: __t$_ControllerSubscriptionOfT(),
      done: T$1.FutureOfvoid()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_StreamController))));
    dart.setLibraryUri(_StreamController, I[39]);
    dart.setFieldSignature(_StreamController, () => dart.global.Object.setPrototypeOf({
      [_varData$]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_state]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_doneFuture]: {type: T$1._FutureNOfvoid(), isConst: false, isFinal: false, libraryUri: I[39]},
      onListen: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
      onPause: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
      onResume: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
      onCancel: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_StreamController))));
    dart.setStaticFieldSignature(_StreamController, () => ['_STATE_INITIAL', '_STATE_SUBSCRIBED', '_STATE_CANCELED', '_STATE_SUBSCRIPTION_MASK', '_STATE_CLOSED', '_STATE_ADDSTREAM']);
    return _StreamController;
  });
  async._StreamController = async._StreamController$();
  dart.defineLazy(async._StreamController, {
    /*async._StreamController._STATE_INITIAL*/get _STATE_INITIAL() {
      return 0;
    },
    /*async._StreamController._STATE_SUBSCRIBED*/get _STATE_SUBSCRIBED() {
      return 1;
    },
    /*async._StreamController._STATE_CANCELED*/get _STATE_CANCELED() {
      return 2;
    },
    /*async._StreamController._STATE_SUBSCRIPTION_MASK*/get _STATE_SUBSCRIPTION_MASK() {
      return 3;
    },
    /*async._StreamController._STATE_CLOSED*/get _STATE_CLOSED() {
      return 4;
    },
    /*async._StreamController._STATE_ADDSTREAM*/get _STATE_ADDSTREAM() {
      return 8;
    }
  }, false);
  async._SyncStreamControllerDispatch$ = dart.generic(T => {
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    class _SyncStreamControllerDispatch extends core.Object {}
    _SyncStreamControllerDispatch[dart.mixinOn] = Object => class _SyncStreamControllerDispatch extends Object {
      [_sendData](data) {
        this[_subscription][_add](data);
      }
      [_sendError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[76], 787, 26, "error");
        if (stackTrace == null) dart.nullFailed(I[76], 787, 44, "stackTrace");
        this[_subscription][_addError](error, stackTrace);
      }
      [_sendDone]() {
        this[_subscription][_close]();
      }
    };
    (_SyncStreamControllerDispatch[dart.mixinNew] = function() {
    }).prototype = _SyncStreamControllerDispatch.prototype;
    dart.addRtiResources(_SyncStreamControllerDispatch, ["async|_SyncStreamControllerDispatch", "async|_StreamController", "async|SynchronousStreamController", "async|_StreamControllerBase", "async|StreamController", "async|StreamController", "async|_StreamControllerLifecycle", "async|_EventSink", "async|_EventDispatch", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_SyncStreamControllerDispatch, () => dart.global.Object.setPrototypeOf({
      [_sendData]: __t$TTovoid(),
      [_sendError]: T$.ObjectAndStackTraceTovoid(),
      [_sendDone]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SyncStreamControllerDispatch))));
    dart.setLibraryUri(_SyncStreamControllerDispatch, I[39]);
    return _SyncStreamControllerDispatch;
  });
  async._SyncStreamControllerDispatch = async._SyncStreamControllerDispatch$();
  async._AsyncStreamControllerDispatch$ = dart.generic(T => {
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$_DelayedDataOfT = () => (__t$_DelayedDataOfT = dart.constFn(async._DelayedData$(T)))();
    class _AsyncStreamControllerDispatch extends core.Object {}
    _AsyncStreamControllerDispatch[dart.mixinOn] = Object => class _AsyncStreamControllerDispatch extends Object {
      [_sendData](data) {
        this[_subscription][_addPending](new (__t$_DelayedDataOfT()).new(data));
      }
      [_sendError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[76], 801, 26, "error");
        if (stackTrace == null) dart.nullFailed(I[76], 801, 44, "stackTrace");
        this[_subscription][_addPending](new async._DelayedError.new(error, stackTrace));
      }
      [_sendDone]() {
        this[_subscription][_addPending](C[79] || CT.C79);
      }
    };
    (_AsyncStreamControllerDispatch[dart.mixinNew] = function() {
    }).prototype = _AsyncStreamControllerDispatch.prototype;
    dart.addRtiResources(_AsyncStreamControllerDispatch, ["async|_AsyncStreamControllerDispatch", "async|_StreamController", "async|_StreamControllerBase", "async|StreamController", "async|_StreamControllerLifecycle", "async|_EventSink", "async|_EventDispatch", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_AsyncStreamControllerDispatch, () => dart.global.Object.setPrototypeOf({
      [_sendData]: __t$TTovoid(),
      [_sendError]: T$.ObjectAndStackTraceTovoid(),
      [_sendDone]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_AsyncStreamControllerDispatch))));
    dart.setLibraryUri(_AsyncStreamControllerDispatch, I[39]);
    return _AsyncStreamControllerDispatch;
  });
  async._AsyncStreamControllerDispatch = async._AsyncStreamControllerDispatch$();
  async._AsyncStreamController$ = dart.generic(T => {
    var __t$_AsyncStreamControllerOfT = () => (__t$_AsyncStreamControllerOfT = dart.constFn(T[_eval]("async|_AsyncStreamController<0>")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$_StreamControllerOfT = () => (__t$_StreamControllerOfT = dart.constFn(async._StreamController$(T)))();
    var __t$_AsyncStreamControllerDispatchOfT = () => (__t$_AsyncStreamControllerDispatchOfT = dart.constFn(async._AsyncStreamControllerDispatch$(T)))();
    const _StreamController__AsyncStreamControllerDispatch$36 = class _StreamController__AsyncStreamControllerDispatch extends __t$_StreamControllerOfT() {};
    (_StreamController__AsyncStreamControllerDispatch$36.new = function(onListen, onPause, onResume, onCancel) {
      dart.global.Object.getPrototypeOf(_StreamController__AsyncStreamControllerDispatch$36).new.call(this, onListen, onPause, onResume, onCancel);
    }).prototype = _StreamController__AsyncStreamControllerDispatch$36.prototype;
    dart.applyMixin(_StreamController__AsyncStreamControllerDispatch$36, __t$_AsyncStreamControllerDispatchOfT());
    class _AsyncStreamController extends _StreamController__AsyncStreamControllerDispatch$36 {
      static ['_#new#tearOff'](T, onListen, onPause, onResume, onCancel) {
        return new (async._AsyncStreamController$(T)).new(onListen, onPause, onResume, onCancel);
      }
      [_sendData](data) {
        return super[_sendData](data);
      }
      [_sendError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[76], 814, 7, "error");
        if (stackTrace == null) dart.nullFailed(I[76], 814, 7, "stackTrace");
        return super[_sendError](error, stackTrace);
      }
      [_sendDone]() {
        return super[_sendDone]();
      }
    }
    (_AsyncStreamController.new = function(onListen, onPause, onResume, onCancel) {
      this.$ti = this.$ti || __t$_AsyncStreamControllerOfT();
      dart.global.Object.getPrototypeOf(_AsyncStreamController).new.call(this, onListen, onPause, onResume, onCancel);
      ;
    }).prototype = _AsyncStreamController.prototype;
    dart.addRtiResources(_AsyncStreamController, ["async|_AsyncStreamController", "async|_AsyncStreamControllerDispatch", "async|_StreamController", "async|_StreamControllerBase", "async|StreamController", "async|_StreamControllerLifecycle", "async|_EventSink", "async|_EventDispatch", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_AsyncStreamController, () => dart.global.Object.setPrototypeOf({
      [_sendData]: __t$TTovoid(),
      [_sendError]: T$.ObjectAndStackTraceTovoid(),
      [_sendDone]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_AsyncStreamController))));
    dart.setLibraryUri(_AsyncStreamController, I[39]);
    return _AsyncStreamController;
  });
  async._AsyncStreamController = async._AsyncStreamController$();
  async._SyncStreamController$ = dart.generic(T => {
    var __t$_SyncStreamControllerOfT = () => (__t$_SyncStreamControllerOfT = dart.constFn(T[_eval]("async|_SyncStreamController<0>")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$_StreamControllerOfT = () => (__t$_StreamControllerOfT = dart.constFn(async._StreamController$(T)))();
    var __t$_SyncStreamControllerDispatchOfT = () => (__t$_SyncStreamControllerDispatchOfT = dart.constFn(async._SyncStreamControllerDispatch$(T)))();
    const _StreamController__SyncStreamControllerDispatch$36 = class _StreamController__SyncStreamControllerDispatch extends __t$_StreamControllerOfT() {};
    (_StreamController__SyncStreamControllerDispatch$36.new = function(onListen, onPause, onResume, onCancel) {
      dart.global.Object.getPrototypeOf(_StreamController__SyncStreamControllerDispatch$36).new.call(this, onListen, onPause, onResume, onCancel);
    }).prototype = _StreamController__SyncStreamControllerDispatch$36.prototype;
    dart.applyMixin(_StreamController__SyncStreamControllerDispatch$36, __t$_SyncStreamControllerDispatchOfT());
    class _SyncStreamController extends _StreamController__SyncStreamControllerDispatch$36 {
      static ['_#new#tearOff'](T, onListen, onPause, onResume, onCancel) {
        return new (async._SyncStreamController$(T)).new(onListen, onPause, onResume, onCancel);
      }
      [_sendData](data) {
        return super[_sendData](data);
      }
      [_sendError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[76], 818, 7, "error");
        if (stackTrace == null) dart.nullFailed(I[76], 818, 7, "stackTrace");
        return super[_sendError](error, stackTrace);
      }
      [_sendDone]() {
        return super[_sendDone]();
      }
    }
    (_SyncStreamController.new = function(onListen, onPause, onResume, onCancel) {
      this.$ti = this.$ti || __t$_SyncStreamControllerOfT();
      dart.global.Object.getPrototypeOf(_SyncStreamController).new.call(this, onListen, onPause, onResume, onCancel);
      ;
    }).prototype = _SyncStreamController.prototype;
    dart.addRtiResources(_SyncStreamController, ["async|_SyncStreamController", "async|_SyncStreamControllerDispatch", "async|_StreamController", "async|SynchronousStreamController", "async|_StreamControllerBase", "async|StreamController", "async|StreamController", "async|_StreamControllerLifecycle", "async|_EventSink", "async|_EventDispatch", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_SyncStreamController, () => dart.global.Object.setPrototypeOf({
      [_sendData]: __t$TTovoid(),
      [_sendError]: T$.ObjectAndStackTraceTovoid(),
      [_sendDone]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SyncStreamController))));
    dart.setLibraryUri(_SyncStreamController, I[39]);
    return _SyncStreamController;
  });
  async._SyncStreamController = async._SyncStreamController$();
  var _target$ = dart.privateName(async, "_target");
  async._StreamSinkWrapper$ = dart.generic(T => {
    var __t$_StreamSinkWrapperOfT = () => (__t$_StreamSinkWrapperOfT = dart.constFn(T[_eval]("async|_StreamSinkWrapper<0>")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    class _StreamSinkWrapper extends core.Object {
      static ['_#new#tearOff'](T, _target) {
        if (_target == null) dart.nullFailed(I[76], 875, 27, "_target");
        return new (async._StreamSinkWrapper$(T)).new(_target);
      }
      add(data) {
        T[_as](data);
        this[_target$].add(data);
      }
      addError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[76], 880, 24, "error");
        this[_target$].addError(error, stackTrace);
      }
      close() {
        return this[_target$].close();
      }
      addStream(source) {
        __t$StreamOfT()[_as](source);
        if (source == null) dart.nullFailed(I[76], 886, 30, "source");
        return this[_target$].addStream(source);
      }
      get done() {
        return this[_target$].done;
      }
    }
    (_StreamSinkWrapper.new = function(_target) {
      if (_target == null) dart.nullFailed(I[76], 875, 27, "_target");
      this[_target$] = _target;
      this.$ti = this.$ti || __t$_StreamSinkWrapperOfT();
      ;
    }).prototype = _StreamSinkWrapper.prototype;
    dart.addRtiResources(_StreamSinkWrapper, ["async|_StreamSinkWrapper", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_StreamSinkWrapper, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      addError: T$1.ObjectAndStackTraceNTovoid(),
      close: T$.VoidToFuture(),
      addStream: T$.ObjectNToFuture()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamSinkWrapper))));
    dart.setGetterSignature(_StreamSinkWrapper, () => dart.global.Object.setPrototypeOf({done: T$0.Future()}, dart.getGetters(dart.global.Object.getPrototypeOf(_StreamSinkWrapper))));
    dart.setLibraryUri(_StreamSinkWrapper, I[39]);
    dart.setFieldSignature(_StreamSinkWrapper, () => dart.global.Object.setPrototypeOf({[_target$]: {type: T$1.StreamController(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_StreamSinkWrapper))));
    return _StreamSinkWrapper;
  });
  async._StreamSinkWrapper = async._StreamSinkWrapper$();
  async._AddStreamState$ = dart.generic(T => {
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$_AddStreamStateOfT = () => (__t$_AddStreamStateOfT = dart.constFn(T[_eval]("async|_AddStreamState<0>")))();
    class _AddStreamState extends core.Object {
      static ['_#new#tearOff'](T, controller, source, cancelOnError) {
        if (controller == null) dart.nullFailed(I[76], 901, 21, "controller");
        if (source == null) dart.nullFailed(I[76], 901, 43, "source");
        if (cancelOnError == null) dart.nullFailed(I[76], 901, 56, "cancelOnError");
        return new (async._AddStreamState$(T)).new(controller, source, cancelOnError);
      }
      static makeErrorHandler(controller) {
        if (controller == null) dart.nullFailed(I[76], 910, 38, "controller");
        return dart.fn((e, s) => {
          if (e == null) dart.nullFailed(I[76], 910, 61, "e");
          if (s == null) dart.nullFailed(I[76], 910, 75, "s");
          controller[_addError](e, s);
          controller[_close]();
        }, T$.ObjectAndStackTraceToNull());
      }
      pause() {
        this.addSubscription.pause();
      }
      resume() {
        this.addSubscription.resume();
      }
      cancel() {
        let cancel = this.addSubscription.cancel();
        if (cancel == null) {
          this.addStreamFuture[_asyncComplete](null);
          return async.Future._nullFuture;
        }
        return cancel.whenComplete(dart.fn(() => {
          this.addStreamFuture[_asyncComplete](null);
        }, T$0.VoidToNull()));
      }
      complete() {
        this.addStreamFuture[_asyncComplete](null);
      }
    }
    (_AddStreamState.new = function(controller, source, cancelOnError) {
      if (controller == null) dart.nullFailed(I[76], 901, 21, "controller");
      if (source == null) dart.nullFailed(I[76], 901, 43, "source");
      if (cancelOnError == null) dart.nullFailed(I[76], 901, 56, "cancelOnError");
      this.addStreamFuture = new async._Future.new();
      this.addSubscription = source.listen(__t$TTovoid()[_as](dart.bind(controller, _add)), {onError: T$.FunctionN()[_as](dart.test(cancelOnError) ? async._AddStreamState.makeErrorHandler(controller) : dart.bind(controller, _addError)), onDone: dart.bind(controller, _close), cancelOnError: cancelOnError});
      this.$ti = this.$ti || __t$_AddStreamStateOfT();
      ;
    }).prototype = _AddStreamState.prototype;
    dart.addRtiResources(_AddStreamState, ["async|_AddStreamState"]);
    dart.setMethodSignature(_AddStreamState, () => dart.global.Object.setPrototypeOf({
      pause: T$.VoidTovoid(),
      resume: T$.VoidTovoid(),
      cancel: T$.VoidToFutureOfvoid(),
      complete: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_AddStreamState))));
    dart.setStaticMethodSignature(_AddStreamState, () => ['makeErrorHandler']);
    dart.setLibraryUri(_AddStreamState, I[39]);
    dart.setFieldSignature(_AddStreamState, () => dart.global.Object.setPrototypeOf({
      addStreamFuture: {type: T$0._Future(), isConst: false, isFinal: true, libraryUri: I[39]},
      addSubscription: {type: T$1.StreamSubscription(), isConst: false, isFinal: true, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_AddStreamState))));
    return _AddStreamState;
  });
  async._AddStreamState = async._AddStreamState$();
  async._StreamControllerAddStreamState$ = dart.generic(T => {
    var __t$_StreamControllerAddStreamStateOfT = () => (__t$_StreamControllerAddStreamStateOfT = dart.constFn(T[_eval]("async|_StreamControllerAddStreamState<0>")))();
    var __t$_AddStreamStateOfT = () => (__t$_AddStreamStateOfT = dart.constFn(async._AddStreamState$(T)))();
    class _StreamControllerAddStreamState extends __t$_AddStreamStateOfT() {
      static ['_#new#tearOff'](T, controller, _varData, source, cancelOnError) {
        if (controller == null) dart.nullFailed(I[76], 952, 56, "controller");
        if (source == null) dart.nullFailed(I[76], 953, 32, "source");
        if (cancelOnError == null) dart.nullFailed(I[76], 953, 45, "cancelOnError");
        return new (async._StreamControllerAddStreamState$(T)).new(controller, _varData, source, cancelOnError);
      }
    }
    (_StreamControllerAddStreamState.new = function(controller, _varData, source, cancelOnError) {
      if (controller == null) dart.nullFailed(I[76], 952, 56, "controller");
      if (source == null) dart.nullFailed(I[76], 953, 32, "source");
      if (cancelOnError == null) dart.nullFailed(I[76], 953, 45, "cancelOnError");
      this[_varData$] = _varData;
      this.$ti = this.$ti || __t$_StreamControllerAddStreamStateOfT();
      dart.global.Object.getPrototypeOf(_StreamControllerAddStreamState).new.call(this, controller, source, cancelOnError);
      if (dart.test(controller.isPaused)) {
        this.addSubscription.pause();
      }
    }).prototype = _StreamControllerAddStreamState.prototype;
    dart.addRtiResources(_StreamControllerAddStreamState, ["async|_StreamControllerAddStreamState"]);
    dart.setLibraryUri(_StreamControllerAddStreamState, I[39]);
    dart.setFieldSignature(_StreamControllerAddStreamState, () => dart.global.Object.setPrototypeOf({[_varData$]: {type: T$.dynamic(), isConst: false, isFinal: false}}, dart.getFields(dart.global.Object.getPrototypeOf(_StreamControllerAddStreamState))));
    return _StreamControllerAddStreamState;
  });
  async._StreamControllerAddStreamState = async._StreamControllerAddStreamState$();
  async._EventSink$ = dart.generic(T => {
    var __t$_EventSinkOfT = () => (__t$_EventSinkOfT = dart.constFn(T[_eval]("async|_EventSink<0>")))();
    class _EventSink extends core.Object {}
    (_EventSink.new = function() {
      this.$ti = this.$ti || __t$_EventSinkOfT();
      ;
    }).prototype = _EventSink.prototype;
    dart.addRtiResources(_EventSink, ["async|_EventSink"]);
    dart.setLibraryUri(_EventSink, I[39]);
    return _EventSink;
  });
  async._EventSink = async._EventSink$();
  async._EventDispatch$ = dart.generic(T => {
    var __t$_EventDispatchOfT = () => (__t$_EventDispatchOfT = dart.constFn(T[_eval]("async|_EventDispatch<0>")))();
    class _EventDispatch extends core.Object {}
    (_EventDispatch.new = function() {
      this.$ti = this.$ti || __t$_EventDispatchOfT();
      ;
    }).prototype = _EventDispatch.prototype;
    dart.addRtiResources(_EventDispatch, ["async|_EventDispatch"]);
    dart.setLibraryUri(_EventDispatch, I[39]);
    return _EventDispatch;
  });
  async._EventDispatch = async._EventDispatch$();
  async._DelayedEvent$ = dart.generic(T => {
    var __t$_DelayedEventOfT = () => (__t$_DelayedEventOfT = dart.constFn(T[_eval]("async|_DelayedEvent<0>")))();
    class _DelayedEvent extends core.Object {}
    (_DelayedEvent.new = function() {
      this.next = null;
      this.$ti = this.$ti || __t$_DelayedEventOfT();
      ;
    }).prototype = _DelayedEvent.prototype;
    dart.addRtiResources(_DelayedEvent, ["async|_DelayedEvent"]);
    dart.setLibraryUri(_DelayedEvent, I[39]);
    dart.setFieldSignature(_DelayedEvent, () => dart.global.Object.setPrototypeOf({next: {type: T$1._DelayedEventN(), isConst: false, isFinal: false, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_DelayedEvent))));
    return _DelayedEvent;
  });
  async._DelayedEvent = async._DelayedEvent$();
  async._DelayedData$ = dart.generic(T => {
    var __t$_DelayedDataOfT = () => (__t$_DelayedDataOfT = dart.constFn(T[_eval]("async|_DelayedData<0>")))();
    var __t$_EventDispatchOfT = () => (__t$_EventDispatchOfT = dart.constFn(T[_eval]("async|_EventDispatch<0>")))();
    var __t$_DelayedEventOfT = () => (__t$_DelayedEventOfT = dart.constFn(async._DelayedEvent$(T)))();
    class _DelayedData extends __t$_DelayedEventOfT() {
      static ['_#new#tearOff'](T, value) {
        return new (async._DelayedData$(T)).new(value);
      }
      perform(dispatch) {
        __t$_EventDispatchOfT()[_as](dispatch);
        if (dispatch == null) dart.nullFailed(I[77], 540, 34, "dispatch");
        dispatch[_sendData](this.value);
      }
    }
    (_DelayedData.new = function(value) {
      this.value = value;
      this.$ti = this.$ti || __t$_DelayedDataOfT();
      dart.global.Object.getPrototypeOf(_DelayedData).new.call(this);
      ;
    }).prototype = _DelayedData.prototype;
    dart.addRtiResources(_DelayedData, ["async|_DelayedData"]);
    dart.setMethodSignature(_DelayedData, () => dart.global.Object.setPrototypeOf({perform: T$.ObjectNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_DelayedData))));
    dart.setLibraryUri(_DelayedData, I[39]);
    dart.setFieldSignature(_DelayedData, () => dart.global.Object.setPrototypeOf({value: {type: T, isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_DelayedData))));
    return _DelayedData;
  });
  async._DelayedData = async._DelayedData$();
  async._DelayedError = class _DelayedError extends async._DelayedEvent {
    static ['_#new#tearOff'](error, stackTrace) {
      if (error == null) dart.nullFailed(I[77], 550, 22, "error");
      if (stackTrace == null) dart.nullFailed(I[77], 550, 34, "stackTrace");
      return new async._DelayedError.new(error, stackTrace);
    }
    perform(dispatch) {
      T$1._EventDispatch()[_as](dispatch);
      if (dispatch == null) dart.nullFailed(I[77], 551, 31, "dispatch");
      dispatch[_sendError](this.error, this.stackTrace);
    }
  };
  (async._DelayedError.new = function(error, stackTrace) {
    if (error == null) dart.nullFailed(I[77], 550, 22, "error");
    if (stackTrace == null) dart.nullFailed(I[77], 550, 34, "stackTrace");
    this.error = error;
    this.stackTrace = stackTrace;
    this.$ti = this.$ti || T$1._DelayedError();
    dart.global.Object.getPrototypeOf(async._DelayedError).new.call(this);
    ;
  }).prototype = async._DelayedError.prototype;
  dart.addRtiResources(async._DelayedError, ["async|_DelayedError"]);
  dart.setMethodSignature(async._DelayedError, () => dart.global.Object.setPrototypeOf({perform: T$.ObjectNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(async._DelayedError))));
  dart.setLibraryUri(async._DelayedError, I[39]);
  dart.setFieldSignature(async._DelayedError, () => dart.global.Object.setPrototypeOf({
    error: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]},
    stackTrace: {type: T$.StackTrace(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(async._DelayedError))));
  async._DelayedDone = class _DelayedDone extends core.Object {
    static ['_#new#tearOff']() {
      return new async._DelayedDone.new();
    }
    perform(dispatch) {
      T$1._EventDispatch()[_as](dispatch);
      if (dispatch == null) dart.nullFailed(I[77], 559, 31, "dispatch");
      dispatch[_sendDone]();
    }
    get next() {
      return null;
    }
    set next(_) {
      dart.throw(new core.StateError.new("No events after a done."));
    }
  };
  (async._DelayedDone.new = function() {
    ;
  }).prototype = async._DelayedDone.prototype;
  dart.addRtiResources(async._DelayedDone, ["async|_DelayedDone", "async|_DelayedEvent"]);
  dart.setMethodSignature(async._DelayedDone, () => dart.global.Object.setPrototypeOf({perform: T$.ObjectNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(async._DelayedDone))));
  dart.setGetterSignature(async._DelayedDone, () => dart.global.Object.setPrototypeOf({next: T$1._DelayedEventN()}, dart.getGetters(dart.global.Object.getPrototypeOf(async._DelayedDone))));
  dart.setSetterSignature(async._DelayedDone, () => dart.global.Object.setPrototypeOf({next: T$1._DelayedEventN()}, dart.getSetters(dart.global.Object.getPrototypeOf(async._DelayedDone))));
  dart.setLibraryUri(async._DelayedDone, I[39]);
  var _eventScheduled = dart.privateName(async, "_eventScheduled");
  async._PendingEvents$ = dart.generic(T => {
    var __t$_PendingEventsOfT = () => (__t$_PendingEventsOfT = dart.constFn(T[_eval]("async|_PendingEvents<0>")))();
    var __t$_EventDispatchOfT = () => (__t$_EventDispatchOfT = dart.constFn(T[_eval]("async|_EventDispatch<0>")))();
    class _PendingEvents extends core.Object {
      get isScheduled() {
        return this[_state] === 1;
      }
      get [_eventScheduled]() {
        return dart.notNull(this[_state]) >= 1;
      }
      schedule(dispatch) {
        __t$_EventDispatchOfT()[_as](dispatch);
        if (dispatch == null) dart.nullFailed(I[77], 605, 35, "dispatch");
        if (dart.test(this.isScheduled)) return;
        if (!!dart.test(this.isEmpty)) dart.assertFailed(null, I[77], 607, 12, "!isEmpty");
        if (dart.test(this[_eventScheduled])) {
          if (!(this[_state] === 3)) dart.assertFailed(null, I[77], 609, 14, "_state == stateCanceled");
          this[_state] = 1;
          return;
        }
        async.scheduleMicrotask(dart.fn(() => {
          let oldState = this[_state];
          this[_state] = 0;
          if (oldState === 3) return;
          this.handleNext(dispatch);
        }, T$.VoidTovoid()));
        this[_state] = 1;
      }
      cancelSchedule() {
        if (dart.test(this.isScheduled)) this[_state] = 3;
      }
      get isEmpty() {
        return this.lastPendingEvent == null;
      }
      add(event) {
        if (event == null) dart.nullFailed(I[77], 628, 26, "event");
        let lastEvent = this.lastPendingEvent;
        if (lastEvent == null) {
          this.firstPendingEvent = this.lastPendingEvent = event;
        } else {
          this.lastPendingEvent = lastEvent.next = event;
        }
      }
      handleNext(dispatch) {
        __t$_EventDispatchOfT()[_as](dispatch);
        if (dispatch == null) dart.nullFailed(I[77], 637, 37, "dispatch");
        if (!!dart.test(this.isScheduled)) dart.assertFailed(null, I[77], 638, 12, "!isScheduled");
        if (!!dart.test(this.isEmpty)) dart.assertFailed(null, I[77], 639, 12, "!isEmpty");
        let event = dart.nullCheck(this.firstPendingEvent);
        let nextEvent = event.next;
        this.firstPendingEvent = nextEvent;
        if (nextEvent == null) {
          this.lastPendingEvent = null;
        }
        event.perform(dispatch);
      }
      clear() {
        if (dart.test(this.isScheduled)) this.cancelSchedule();
        this.firstPendingEvent = this.lastPendingEvent = null;
      }
      static ['_#new#tearOff'](T) {
        return new (async._PendingEvents$(T)).new();
      }
    }
    (_PendingEvents.new = function() {
      this[_state] = 0;
      this.firstPendingEvent = null;
      this.lastPendingEvent = null;
      this.$ti = this.$ti || __t$_PendingEventsOfT();
      ;
    }).prototype = _PendingEvents.prototype;
    dart.addRtiResources(_PendingEvents, ["async|_PendingEvents"]);
    dart.setMethodSignature(_PendingEvents, () => dart.global.Object.setPrototypeOf({
      schedule: T$.ObjectNTovoid(),
      cancelSchedule: T$.VoidTovoid(),
      add: T$0._DelayedEventTovoid(),
      handleNext: T$.ObjectNTovoid(),
      clear: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_PendingEvents))));
    dart.setGetterSignature(_PendingEvents, () => dart.global.Object.setPrototypeOf({
      isScheduled: T$.bool(),
      [_eventScheduled]: T$.bool(),
      isEmpty: T$.bool()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_PendingEvents))));
    dart.setLibraryUri(_PendingEvents, I[39]);
    dart.setFieldSignature(_PendingEvents, () => dart.global.Object.setPrototypeOf({
      [_state]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      firstPendingEvent: {type: T$1._DelayedEventN(), isConst: false, isFinal: false, libraryUri: I[39]},
      lastPendingEvent: {type: T$1._DelayedEventN(), isConst: false, isFinal: false, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_PendingEvents))));
    dart.setStaticFieldSignature(_PendingEvents, () => ['stateUnscheduled', 'stateScheduled', 'stateCanceled']);
    return _PendingEvents;
  });
  async._PendingEvents = async._PendingEvents$();
  dart.defineLazy(async._PendingEvents, {
    /*async._PendingEvents.stateUnscheduled*/get stateUnscheduled() {
      return 0;
    },
    /*async._PendingEvents.stateScheduled*/get stateScheduled() {
      return 1;
    },
    /*async._PendingEvents.stateCanceled*/get stateCanceled() {
      return 3;
    }
  }, false);
  var _onMicrotask = dart.privateName(async, "_onMicrotask");
  async._DoneStreamSubscription$ = dart.generic(T => {
    var __t$_DoneStreamSubscriptionOfT = () => (__t$_DoneStreamSubscriptionOfT = dart.constFn(T[_eval]("async|_DoneStreamSubscription<0>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(T[_eval]("~(~(0)?)")))();
    class _DoneStreamSubscription extends core.Object {
      static ['_#new#tearOff'](T, onDone) {
        return new (async._DoneStreamSubscription$(T)).new(onDone);
      }
      get isPaused() {
        return dart.notNull(this[_state]) >= 2;
      }
      static _isDone(state) {
        if (state == null) dart.nullFailed(I[77], 710, 27, "state");
        return dart.notNull(state) < 0;
      }
      static _incrementPauseCount(state) {
        if (state == null) dart.nullFailed(I[77], 712, 39, "state");
        return dart.notNull(state) + 2;
      }
      static _decrementPauseCount(state) {
        if (state == null) dart.nullFailed(I[77], 713, 39, "state");
        return dart.notNull(state) - 2;
      }
      onData(handleData) {
      }
      onError(handleError) {
      }
      onDone(handleDone) {
        if (!dart.test(async._DoneStreamSubscription._isDone(this[_state]))) {
          if (handleDone != null) handleDone = this[_zone$].registerCallback(T$.void(), handleDone);
          this[_onDone] = handleDone;
        }
      }
      pause(resumeSignal = null) {
        if (!dart.test(async._DoneStreamSubscription._isDone(this[_state]))) {
          this[_state] = async._DoneStreamSubscription._incrementPauseCount(this[_state]);
          if (resumeSignal != null) resumeSignal.whenComplete(dart.bind(this, 'resume'));
        }
      }
      resume() {
        let resumeState = async._DoneStreamSubscription._decrementPauseCount(this[_state]);
        if (dart.notNull(resumeState) < 0) return;
        if (resumeState === 0) {
          this[_state] = 1;
          async.scheduleMicrotask(dart.bind(this, _onMicrotask));
        } else {
          this[_state] = resumeState;
        }
      }
      cancel() {
        this[_state] = -1;
        this[_onDone] = null;
        return async.Future._nullFuture;
      }
      asFuture(E, futureValue = null) {
        let resultValue = null;
        if (futureValue == null) {
          if (!dart.test(_internal.typeAcceptsNull(E))) {
            dart.throw(new core.ArgumentError.notNull("futureValue"));
          }
          resultValue = E[_as](futureValue);
        } else {
          resultValue = futureValue;
        }
        let result = new (async._Future$(E)).new();
        if (!dart.test(async._DoneStreamSubscription._isDone(this[_state]))) {
          this[_onDone] = this[_zone$].registerCallback(T$.void(), dart.fn(() => {
            result[_completeWithValue](resultValue);
          }, T$.VoidTovoid()));
        }
        return result;
      }
      [_onMicrotask]() {
        let unscheduledState = dart.notNull(this[_state]) - 1;
        if (unscheduledState === 0) {
          this[_state] = -1;
          {
            let t$36$350$350 = this[_onDone];
            {
              let doneHandler = null;
              if (t$36$350$350 != null) {
                doneHandler = t$36$350$350;
                {
                  this[_onDone] = null;
                  this[_zone$].runGuarded(doneHandler);
                }
              }
            }
          }
        } else {
          this[_state] = unscheduledState;
        }
      }
    }
    (_DoneStreamSubscription.new = function(onDone) {
      this[_onDone] = null;
      this[_zone$] = async.Zone.current;
      this[_state] = 1;
      this.$ti = this.$ti || __t$_DoneStreamSubscriptionOfT();
      async.scheduleMicrotask(dart.bind(this, _onMicrotask));
      if (onDone != null) {
        this[_onDone] = this[_zone$].registerCallback(T$.void(), onDone);
      }
    }).prototype = _DoneStreamSubscription.prototype;
    dart.addRtiResources(_DoneStreamSubscription, ["async|_DoneStreamSubscription", "async|StreamSubscription"]);
    dart.setMethodSignature(_DoneStreamSubscription, () => dart.global.Object.setPrototypeOf({
      onData: __t$FnTovoid(),
      onError: T$.FunctionNTovoid(),
      onDone: T$.FnTovoid$9(),
      pause: T$0.FutureNOfvoidTovoid(),
      resume: T$.VoidTovoid(),
      cancel: T$.VoidToFuture(),
      asFuture: T$.ENToFutureOfE(),
      [_onMicrotask]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_DoneStreamSubscription))));
    dart.setMethodsDefaultTypeArgSignature(_DoneStreamSubscription, () => dart.global.Object.setPrototypeOf({asFuture: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_DoneStreamSubscription))));
    dart.setStaticMethodSignature(_DoneStreamSubscription, () => ['_isDone', '_incrementPauseCount', '_decrementPauseCount']);
    dart.setGetterSignature(_DoneStreamSubscription, () => dart.global.Object.setPrototypeOf({isPaused: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_DoneStreamSubscription))));
    dart.setLibraryUri(_DoneStreamSubscription, I[39]);
    dart.setFieldSignature(_DoneStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [_state]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_zone$]: {type: T$.Zone(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_onDone]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_DoneStreamSubscription))));
    dart.setStaticFieldSignature(_DoneStreamSubscription, () => ['_stateReadyToSend', '_stateScheduled', '_stateDone', '_statePausedOnce']);
    return _DoneStreamSubscription;
  });
  async._DoneStreamSubscription = async._DoneStreamSubscription$();
  dart.defineLazy(async._DoneStreamSubscription, {
    /*async._DoneStreamSubscription._stateReadyToSend*/get _stateReadyToSend() {
      return 0;
    },
    /*async._DoneStreamSubscription._stateScheduled*/get _stateScheduled() {
      return 1;
    },
    /*async._DoneStreamSubscription._stateDone*/get _stateDone() {
      return -1;
    },
    /*async._DoneStreamSubscription._statePausedOnce*/get _statePausedOnce() {
      return 2;
    }
  }, false);
  var _source$4 = dart.privateName(async, "_source");
  var _onListenHandler = dart.privateName(async, "_onListenHandler");
  var _onCancelHandler = dart.privateName(async, "_onCancelHandler");
  var _cancelSubscription = dart.privateName(async, "_cancelSubscription");
  var _pauseSubscription = dart.privateName(async, "_pauseSubscription");
  var _resumeSubscription = dart.privateName(async, "_resumeSubscription");
  var _isSubscriptionPaused = dart.privateName(async, "_isSubscriptionPaused");
  async._AsBroadcastStream$ = dart.generic(T => {
    var __t$StreamSubscriptionOfT = () => (__t$StreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>")))();
    var __t$_AsBroadcastStreamOfT = () => (__t$_AsBroadcastStreamOfT = dart.constFn(T[_eval]("async|_AsBroadcastStream<0>")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$_BroadcastSubscriptionWrapperOfT = () => (__t$_BroadcastSubscriptionWrapperOfT = dart.constFn(T[_eval]("async|_BroadcastSubscriptionWrapper<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$StreamSubscriptionOfTToNvoid = () => (__t$StreamSubscriptionOfTToNvoid = dart.constFn(T[_eval]("~(async|StreamSubscription<0>)?")))();
    var __t$_AsBroadcastStreamControllerNOfT = () => (__t$_AsBroadcastStreamControllerNOfT = dart.constFn(T[_eval]("async|_AsBroadcastStreamController<0>?")))();
    var __t$StreamSubscriptionNOfT = () => (__t$StreamSubscriptionNOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>?")))();
    var __t$_AsBroadcastStreamControllerOfT = () => (__t$_AsBroadcastStreamControllerOfT = dart.constFn(async._AsBroadcastStreamController$(T)))();
    var __t$_DoneStreamSubscriptionOfT = () => (__t$_DoneStreamSubscriptionOfT = dart.constFn(async._DoneStreamSubscription$(T)))();
    var __t$_BroadcastSubscriptionWrapperOfT$ = () => (__t$_BroadcastSubscriptionWrapperOfT$ = dart.constFn(async._BroadcastSubscriptionWrapper$(T)))();
    var __t$StreamOfT$ = () => (__t$StreamOfT$ = dart.constFn(async.Stream$(T)))();
    class _AsBroadcastStream extends __t$StreamOfT$() {
      static ['_#new#tearOff'](T, _source, onListenHandler, onCancelHandler) {
        if (_source == null) dart.nullFailed(I[77], 796, 12, "_source");
        return new (async._AsBroadcastStream$(T)).new(_source, onListenHandler, onCancelHandler);
      }
      get isBroadcast() {
        return true;
      }
      listen(onData, opts) {
        let t$3698;
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        let controller = this[_controller$];
        if (controller == null || dart.test(controller.isClosed)) {
          return new (__t$_DoneStreamSubscriptionOfT()).new(onDone);
        }
        this[_subscription] == null ? this[_subscription] = this[_source$4].listen(__t$TTovoid()[_as](dart.bind(controller, 'add')), {onError: dart.bind(controller, 'addError'), onDone: dart.bind(controller, 'close')}) : null;
        return controller[_subscribe](onData, onError, onDone, (t$3698 = cancelOnError, t$3698 == null ? false : t$3698));
      }
      [_onCancel]() {
        let controller = this[_controller$];
        let shutdown = controller == null || dart.test(controller.isClosed);
        let cancelHandler = this[_onCancelHandler];
        if (cancelHandler != null) {
          this[_zone$].runUnary(T$.void(), __t$_BroadcastSubscriptionWrapperOfT(), cancelHandler, new (__t$_BroadcastSubscriptionWrapperOfT$()).new(this));
        }
        if (shutdown) {
          let subscription = this[_subscription];
          if (subscription != null) {
            subscription.cancel();
            this[_subscription] = null;
          }
        }
      }
      [_onListen$]() {
        let listenHandler = this[_onListenHandler];
        if (listenHandler != null) {
          this[_zone$].runUnary(T$.void(), __t$_BroadcastSubscriptionWrapperOfT(), listenHandler, new (__t$_BroadcastSubscriptionWrapperOfT$()).new(this));
        }
      }
      [_cancelSubscription]() {
        let subscription = this[_subscription];
        if (subscription != null) {
          this[_subscription] = null;
          this[_controller$] = null;
          subscription.cancel();
        }
      }
      [_pauseSubscription](resumeSignal) {
        let t$3698;
        t$3698 = this[_subscription];
        t$3698 == null ? null : t$3698.pause(resumeSignal);
      }
      [_resumeSubscription]() {
        let t$3698;
        t$3698 = this[_subscription];
        t$3698 == null ? null : t$3698.resume();
      }
      get [_isSubscriptionPaused]() {
        let t$3698, t$3698$;
        t$3698$ = (t$3698 = this[_subscription], t$3698 == null ? null : t$3698.isPaused);
        return t$3698$ == null ? false : t$3698$;
      }
    }
    (_AsBroadcastStream.new = function(_source, onListenHandler, onCancelHandler) {
      if (_source == null) dart.nullFailed(I[77], 796, 12, "_source");
      this[_controller$] = null;
      this[_subscription] = null;
      this[_source$4] = _source;
      this[_onListenHandler] = onListenHandler == null ? null : async.Zone.current.registerUnaryCallback(T$.void(), __t$StreamSubscriptionOfT(), onListenHandler);
      this[_onCancelHandler] = onCancelHandler == null ? null : async.Zone.current.registerUnaryCallback(T$.void(), __t$StreamSubscriptionOfT(), onCancelHandler);
      this[_zone$] = async.Zone.current;
      this.$ti = this.$ti || __t$_AsBroadcastStreamOfT();
      dart.global.Object.getPrototypeOf(_AsBroadcastStream).new.call(this);
      this[_controller$] = new (__t$_AsBroadcastStreamControllerOfT()).new(dart.bind(this, _onListen$), dart.bind(this, _onCancel));
    }).prototype = _AsBroadcastStream.prototype;
    dart.addRtiResources(_AsBroadcastStream, ["async|_AsBroadcastStream"]);
    dart.setMethodSignature(_AsBroadcastStream, () => dart.global.Object.setPrototypeOf({
      listen: __t$Fn__ToStreamSubscriptionOfT(),
      [_onCancel]: T$.VoidTovoid(),
      [_onListen$]: T$.VoidTovoid(),
      [_cancelSubscription]: T$.VoidTovoid(),
      [_pauseSubscription]: T$1.FutureNOfvoidTovoid$1(),
      [_resumeSubscription]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_AsBroadcastStream))));
    dart.setGetterSignature(_AsBroadcastStream, () => dart.global.Object.setPrototypeOf({[_isSubscriptionPaused]: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_AsBroadcastStream))));
    dart.setLibraryUri(_AsBroadcastStream, I[39]);
    dart.setFieldSignature(_AsBroadcastStream, () => dart.global.Object.setPrototypeOf({
      [_source$4]: {type: __t$StreamOfT(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_onListenHandler]: {type: __t$StreamSubscriptionOfTToNvoid(), isConst: false, isFinal: true},
      [_onCancelHandler]: {type: __t$StreamSubscriptionOfTToNvoid(), isConst: false, isFinal: true},
      [_zone$]: {type: T$.Zone(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_controller$]: {type: __t$_AsBroadcastStreamControllerNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_subscription]: {type: __t$StreamSubscriptionNOfT(), isConst: false, isFinal: false, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_AsBroadcastStream))));
    return _AsBroadcastStream;
  });
  async._AsBroadcastStream = async._AsBroadcastStream$();
  async._BroadcastSubscriptionWrapper$ = dart.generic(T => {
    var __t$_BroadcastSubscriptionWrapperOfT = () => (__t$_BroadcastSubscriptionWrapperOfT = dart.constFn(T[_eval]("async|_BroadcastSubscriptionWrapper<0>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(T[_eval]("~(~(0)?)")))();
    class _BroadcastSubscriptionWrapper extends core.Object {
      static ['_#new#tearOff'](T, _stream) {
        if (_stream == null) dart.nullFailed(I[77], 878, 38, "_stream");
        return new (async._BroadcastSubscriptionWrapper$(T)).new(_stream);
      }
      onData(handleData) {
        dart.throw(new core.UnsupportedError.new("Cannot change handlers of asBroadcastStream source subscription."));
      }
      onError(handleError) {
        dart.throw(new core.UnsupportedError.new("Cannot change handlers of asBroadcastStream source subscription."));
      }
      onDone(handleDone) {
        dart.throw(new core.UnsupportedError.new("Cannot change handlers of asBroadcastStream source subscription."));
      }
      pause(resumeSignal = null) {
        this[_stream$][_pauseSubscription](resumeSignal);
      }
      resume() {
        this[_stream$][_resumeSubscription]();
      }
      cancel() {
        this[_stream$][_cancelSubscription]();
        return async.Future._nullFuture;
      }
      get isPaused() {
        return this[_stream$][_isSubscriptionPaused];
      }
      asFuture(E, futureValue = null) {
        dart.throw(new core.UnsupportedError.new("Cannot change handlers of asBroadcastStream source subscription."));
      }
    }
    (_BroadcastSubscriptionWrapper.new = function(_stream) {
      if (_stream == null) dart.nullFailed(I[77], 878, 38, "_stream");
      this[_stream$] = _stream;
      this.$ti = this.$ti || __t$_BroadcastSubscriptionWrapperOfT();
      ;
    }).prototype = _BroadcastSubscriptionWrapper.prototype;
    dart.addRtiResources(_BroadcastSubscriptionWrapper, ["async|_BroadcastSubscriptionWrapper", "async|StreamSubscription"]);
    dart.setMethodSignature(_BroadcastSubscriptionWrapper, () => dart.global.Object.setPrototypeOf({
      onData: __t$FnTovoid(),
      onError: T$.FunctionNTovoid(),
      onDone: T$.FnTovoid$9(),
      pause: T$0.FutureNOfvoidTovoid(),
      resume: T$.VoidTovoid(),
      cancel: T$.VoidToFuture(),
      asFuture: T$.ENToFutureOfE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_BroadcastSubscriptionWrapper))));
    dart.setMethodsDefaultTypeArgSignature(_BroadcastSubscriptionWrapper, () => dart.global.Object.setPrototypeOf({asFuture: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_BroadcastSubscriptionWrapper))));
    dart.setGetterSignature(_BroadcastSubscriptionWrapper, () => dart.global.Object.setPrototypeOf({isPaused: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_BroadcastSubscriptionWrapper))));
    dart.setLibraryUri(_BroadcastSubscriptionWrapper, I[39]);
    dart.setFieldSignature(_BroadcastSubscriptionWrapper, () => dart.global.Object.setPrototypeOf({[_stream$]: {type: T$1._AsBroadcastStream(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_BroadcastSubscriptionWrapper))));
    return _BroadcastSubscriptionWrapper;
  });
  async._BroadcastSubscriptionWrapper = async._BroadcastSubscriptionWrapper$();
  var _hasValue$0 = dart.privateName(async, "_hasValue");
  var _stateData = dart.privateName(async, "_stateData");
  var _initializeOrDone = dart.privateName(async, "_initializeOrDone");
  async._StreamIterator$ = dart.generic(T => {
    var __t$_StreamIteratorOfT = () => (__t$_StreamIteratorOfT = dart.constFn(T[_eval]("async|_StreamIterator<0>")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$StreamSubscriptionNOfT = () => (__t$StreamSubscriptionNOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>?")))();
    class _StreamIterator extends core.Object {
      static ['_#new#tearOff'](T, stream) {
        if (stream == null) dart.nullFailed(I[77], 981, 35, "stream");
        return new (async._StreamIterator$(T)).new(stream);
      }
      get current() {
        if (dart.test(this[_hasValue$0])) return T[_as](this[_stateData]);
        return T[_as](null);
      }
      moveNext() {
        let subscription = this[_subscription];
        if (subscription != null) {
          if (dart.test(this[_hasValue$0])) {
            let future = new (G._FutureOfbool()).new();
            this[_stateData] = future;
            this[_hasValue$0] = false;
            subscription.resume();
            return future;
          }
          dart.throw(new core.StateError.new("Already waiting for next."));
        }
        return this[_initializeOrDone]();
      }
      [_initializeOrDone]() {
        if (!(this[_subscription] == null)) dart.assertFailed(null, I[77], 1010, 12, "_subscription == null");
        let stateData = this[_stateData];
        if (stateData != null) {
          let stream = __t$StreamOfT()[_as](stateData);
          let future = new (G._FutureOfbool()).new();
          this[_stateData] = future;
          let subscription = stream.listen(dart.bind(this, _onData$), {onError: dart.bind(this, _onError$), onDone: dart.bind(this, _onDone), cancelOnError: true});
          if (this[_stateData] != null) {
            this[_subscription] = subscription;
          }
          return future;
        }
        return async.Future._falseFuture;
      }
      cancel() {
        let subscription = this[_subscription];
        let stateData = this[_stateData];
        this[_stateData] = null;
        if (subscription != null) {
          this[_subscription] = null;
          if (!dart.test(this[_hasValue$0])) {
            let future = T$1._FutureOfbool()[_as](stateData);
            future[_asyncComplete](false);
          } else {
            this[_hasValue$0] = false;
          }
          return subscription.cancel();
        }
        return async.Future._nullFuture;
      }
      [_onData$](data) {
        let t$3698;
        T[_as](data);
        if (this[_subscription] == null) return;
        let moveNextFuture = T$1._FutureOfbool()[_as](this[_stateData]);
        this[_stateData] = data;
        this[_hasValue$0] = true;
        moveNextFuture[_complete](true);
        if (dart.test(this[_hasValue$0])) {
          t$3698 = this[_subscription];
          t$3698 == null ? null : t$3698.pause();
        }
      }
      [_onError$](error, stackTrace) {
        if (error == null) dart.nullFailed(I[77], 1064, 24, "error");
        if (stackTrace == null) dart.nullFailed(I[77], 1064, 42, "stackTrace");
        let subscription = this[_subscription];
        let moveNextFuture = T$1._FutureOfbool()[_as](this[_stateData]);
        this[_subscription] = null;
        this[_stateData] = null;
        if (subscription != null) {
          moveNextFuture[_completeError](error, stackTrace);
        } else {
          moveNextFuture[_asyncCompleteError](error, stackTrace);
        }
      }
      [_onDone]() {
        let subscription = this[_subscription];
        let moveNextFuture = T$1._FutureOfbool()[_as](this[_stateData]);
        this[_subscription] = null;
        this[_stateData] = null;
        if (subscription != null) {
          moveNextFuture[_completeWithValue](false);
        } else {
          moveNextFuture[_asyncCompleteWithValue](false);
        }
      }
    }
    (_StreamIterator.new = function(stream) {
      if (stream == null) dart.nullFailed(I[77], 981, 35, "stream");
      this[_subscription] = null;
      this[_hasValue$0] = false;
      this[_stateData] = _internal.checkNotNullable(T$.Object(), stream, "stream");
      this.$ti = this.$ti || __t$_StreamIteratorOfT();
      ;
    }).prototype = _StreamIterator.prototype;
    dart.addRtiResources(_StreamIterator, ["async|_StreamIterator", "async|StreamIterator"]);
    dart.setMethodSignature(_StreamIterator, () => dart.global.Object.setPrototypeOf({
      moveNext: T$1.VoidToFutureOfbool(),
      [_initializeOrDone]: T$1.VoidToFutureOfbool(),
      cancel: T$.VoidToFuture(),
      [_onData$]: T$.ObjectNTovoid(),
      [_onError$]: T$.ObjectAndStackTraceTovoid(),
      [_onDone]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamIterator))));
    dart.setGetterSignature(_StreamIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(_StreamIterator))));
    dart.setLibraryUri(_StreamIterator, I[39]);
    dart.setFieldSignature(_StreamIterator, () => dart.global.Object.setPrototypeOf({
      [_subscription]: {type: __t$StreamSubscriptionNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_stateData]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_hasValue$0]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_StreamIterator))));
    return _StreamIterator;
  });
  async._StreamIterator = async._StreamIterator$();
  var isBroadcast = dart.privateName(async, "_EmptyStream.isBroadcast");
  async._EmptyStream$ = dart.generic(T => {
    var __t$_EmptyStreamOfT = () => (__t$_EmptyStreamOfT = dart.constFn(T[_eval]("async|_EmptyStream<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$_DoneStreamSubscriptionOfT = () => (__t$_DoneStreamSubscriptionOfT = dart.constFn(async._DoneStreamSubscription$(T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _EmptyStream extends __t$StreamOfT() {
      get isBroadcast() {
        return this[isBroadcast];
      }
      set isBroadcast(value) {
        super.isBroadcast = value;
      }
      static ['_#new#tearOff'](T, opts) {
        let broadcast = opts && 'broadcast' in opts ? opts.broadcast : true;
        if (broadcast == null) dart.nullFailed(I[77], 1093, 28, "broadcast");
        return new (async._EmptyStream$(T)).new({broadcast: broadcast});
      }
      listen(onData, opts) {
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        return new (__t$_DoneStreamSubscriptionOfT()).new(onDone);
      }
    }
    (_EmptyStream.new = function(opts) {
      let broadcast = opts && 'broadcast' in opts ? opts.broadcast : true;
      if (broadcast == null) dart.nullFailed(I[77], 1093, 28, "broadcast");
      this[isBroadcast] = broadcast;
      this.$ti = this.$ti || __t$_EmptyStreamOfT();
      dart.global.Object.getPrototypeOf(_EmptyStream).new.call(this);
      ;
    }).prototype = _EmptyStream.prototype;
    dart.addRtiResources(_EmptyStream, ["async|_EmptyStream"]);
    dart.setMethodSignature(_EmptyStream, () => dart.global.Object.setPrototypeOf({listen: __t$Fn__ToStreamSubscriptionOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(_EmptyStream))));
    dart.setLibraryUri(_EmptyStream, I[39]);
    dart.setFieldSignature(_EmptyStream, () => dart.global.Object.setPrototypeOf({isBroadcast: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_EmptyStream))));
    return _EmptyStream;
  });
  async._EmptyStream = async._EmptyStream$();
  var isBroadcast$ = dart.privateName(async, "_MultiStream.isBroadcast");
  async._MultiStream$ = dart.generic(T => {
    var __t$_MultiStreamOfT = () => (__t$_MultiStreamOfT = dart.constFn(T[_eval]("async|_MultiStream<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$MultiStreamControllerOfTTovoid = () => (__t$MultiStreamControllerOfTTovoid = dart.constFn(T[_eval]("~(async|MultiStreamController<0>)")))();
    var __t$_MultiStreamControllerOfT = () => (__t$_MultiStreamControllerOfT = dart.constFn(async._MultiStreamController$(T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _MultiStream extends __t$StreamOfT() {
      get isBroadcast() {
        return this[isBroadcast$];
      }
      set isBroadcast(value) {
        super.isBroadcast = value;
      }
      static ['_#new#tearOff'](T, _onListen, isBroadcast) {
        if (_onListen == null) dart.nullFailed(I[77], 1108, 21, "_onListen");
        if (isBroadcast == null) dart.nullFailed(I[77], 1108, 37, "isBroadcast");
        return new (async._MultiStream$(T)).new(_onListen, isBroadcast);
      }
      listen(onData, opts) {
        let t$3698;
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        let controller = new (__t$_MultiStreamControllerOfT()).new();
        controller.onListen = dart.fn(() => {
          let t$3698;
          t$3698 = controller;
          this[_onListen$](t$3698);
        }, T$.VoidTovoid());
        return controller[_subscribe](onData, onError, onDone, (t$3698 = cancelOnError, t$3698 == null ? false : t$3698));
      }
    }
    (_MultiStream.new = function(_onListen, isBroadcast) {
      if (_onListen == null) dart.nullFailed(I[77], 1108, 21, "_onListen");
      if (isBroadcast == null) dart.nullFailed(I[77], 1108, 37, "isBroadcast");
      this[_onListen$] = _onListen;
      this[isBroadcast$] = isBroadcast;
      this.$ti = this.$ti || __t$_MultiStreamOfT();
      dart.global.Object.getPrototypeOf(_MultiStream).new.call(this);
      ;
    }).prototype = _MultiStream.prototype;
    dart.addRtiResources(_MultiStream, ["async|_MultiStream"]);
    dart.setMethodSignature(_MultiStream, () => dart.global.Object.setPrototypeOf({listen: __t$Fn__ToStreamSubscriptionOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(_MultiStream))));
    dart.setLibraryUri(_MultiStream, I[39]);
    dart.setFieldSignature(_MultiStream, () => dart.global.Object.setPrototypeOf({
      isBroadcast: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_onListen$]: {type: __t$MultiStreamControllerOfTTovoid(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_MultiStream))));
    return _MultiStream;
  });
  async._MultiStream = async._MultiStream$();
  async._MultiStreamController$ = dart.generic(T => {
    var __t$_MultiStreamControllerOfT = () => (__t$_MultiStreamControllerOfT = dart.constFn(T[_eval]("async|_MultiStreamController<0>")))();
    var __t$_AsyncStreamControllerOfT = () => (__t$_AsyncStreamControllerOfT = dart.constFn(async._AsyncStreamController$(T)))();
    class _MultiStreamController extends __t$_AsyncStreamControllerOfT() {
      static ['_#new#tearOff'](T) {
        return new (async._MultiStreamController$(T)).new();
      }
      addSync(data) {
        T[_as](data);
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_badEventState]());
        if (dart.test(this.hasListener)) this[_subscription][_add](data);
      }
      addErrorSync(error, stackTrace = null) {
        let t$3698;
        if (error == null) dart.nullFailed(I[77], 1130, 28, "error");
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_badEventState]());
        if (dart.test(this.hasListener)) {
          this[_subscription][_addError](error, (t$3698 = stackTrace, t$3698 == null ? core.StackTrace.empty : t$3698));
        }
      }
      closeSync() {
        if (dart.test(this.isClosed)) return;
        if (!dart.test(this[_mayAddEvent])) dart.throw(this[_badEventState]());
        this[_state] = (dart.notNull(this[_state]) | 4) >>> 0;
        if (dart.test(this.hasListener)) this[_subscription][_close]();
      }
      get stream() {
        dart.throw(new core.UnsupportedError.new("Not available"));
      }
    }
    (_MultiStreamController.new = function() {
      this.$ti = this.$ti || __t$_MultiStreamControllerOfT();
      dart.global.Object.getPrototypeOf(_MultiStreamController).new.call(this, null, null, null, null);
      ;
    }).prototype = _MultiStreamController.prototype;
    dart.addRtiResources(_MultiStreamController, ["async|_MultiStreamController", "async|MultiStreamController", "async|StreamController", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_MultiStreamController, () => dart.global.Object.setPrototypeOf({
      addSync: T$.ObjectNTovoid(),
      addErrorSync: T$1.ObjectAndStackTraceNTovoid(),
      closeSync: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_MultiStreamController))));
    dart.setLibraryUri(_MultiStreamController, I[39]);
    return _MultiStreamController;
  });
  async._MultiStreamController = async._MultiStreamController$();
  var _handleError$ = dart.privateName(async, "_handleError");
  var _handleDone$ = dart.privateName(async, "_handleDone");
  async._ForwardingStream$ = dart.generic((S, T) => {
    var __t$_ForwardingStreamOfS$T = () => (__t$_ForwardingStreamOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_ForwardingStream<1,2>")))();
    var __t$StreamOfS = () => (__t$StreamOfS = dart.constFn(S[_eval]("async|Stream<0>")))();
    var __t$_EventSinkOfT = () => (__t$_EventSinkOfT = dart.constFn(T[_eval]("async|_EventSink<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT = () => (__t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?,core|Function?,~()?,core|bool)")))();
    var __t$_ForwardingStreamSubscriptionOfS$T = () => (__t$_ForwardingStreamSubscriptionOfS$T = dart.constFn(async._ForwardingStreamSubscription$(S, T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _ForwardingStream extends __t$StreamOfT() {
      get isBroadcast() {
        return this[_source$4].isBroadcast;
      }
      listen(onData, opts) {
        let t$3698;
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        return this[_createSubscription](onData, onError, onDone, (t$3698 = cancelOnError, t$3698 == null ? false : t$3698));
      }
      [_createSubscription](onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[83], 85, 47, "cancelOnError");
        return new (__t$_ForwardingStreamSubscriptionOfS$T()).new(this, onData, onError, onDone, cancelOnError);
      }
      [_handleError$](error, stackTrace, sink) {
        if (error == null) dart.nullFailed(I[83], 94, 28, "error");
        if (stackTrace == null) dart.nullFailed(I[83], 94, 46, "stackTrace");
        __t$_EventSinkOfT()[_as](sink);
        if (sink == null) dart.nullFailed(I[83], 94, 72, "sink");
        sink[_addError](error, stackTrace);
      }
      [_handleDone$](sink) {
        __t$_EventSinkOfT()[_as](sink);
        if (sink == null) dart.nullFailed(I[83], 98, 34, "sink");
        sink[_close]();
      }
    }
    (_ForwardingStream.new = function(_source) {
      if (_source == null) dart.nullFailed(I[83], 75, 26, "_source");
      this[_source$4] = _source;
      this.$ti = this.$ti || __t$_ForwardingStreamOfS$T();
      dart.global.Object.getPrototypeOf(_ForwardingStream).new.call(this);
      ;
    }).prototype = _ForwardingStream.prototype;
    dart.addRtiResources(_ForwardingStream, ["async|_ForwardingStream"]);
    dart.setMethodSignature(_ForwardingStream, () => dart.global.Object.setPrototypeOf({
      listen: __t$Fn__ToStreamSubscriptionOfT(),
      [_createSubscription]: __t$FnAndFunctionNAndFn__ToStreamSubscriptionOfT(),
      [_handleError$]: T$1.ObjectAndStackTraceAndObjectNTovoid(),
      [_handleDone$]: T$.ObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_ForwardingStream))));
    dart.setLibraryUri(_ForwardingStream, I[39]);
    dart.setFieldSignature(_ForwardingStream, () => dart.global.Object.setPrototypeOf({[_source$4]: {type: __t$StreamOfS(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_ForwardingStream))));
    return _ForwardingStream;
  });
  async._ForwardingStream = async._ForwardingStream$();
  var _handleData$ = dart.privateName(async, "_handleData");
  async._ForwardingStreamSubscription$ = dart.generic((S, T) => {
    var __t$_ForwardingStreamSubscriptionOfS$T = () => (__t$_ForwardingStreamSubscriptionOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_ForwardingStreamSubscription<1,2>")))();
    var __t$_ForwardingStreamOfS$T = () => (__t$_ForwardingStreamOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_ForwardingStream<1,2>")))();
    var __t$StreamSubscriptionNOfS = () => (__t$StreamSubscriptionNOfS = dart.constFn(S[_eval]("async|StreamSubscription<0>?")))();
    var __t$_BufferingStreamSubscriptionOfT = () => (__t$_BufferingStreamSubscriptionOfT = dart.constFn(async._BufferingStreamSubscription$(T)))();
    class _ForwardingStreamSubscription extends __t$_BufferingStreamSubscriptionOfT() {
      static ['_#new#tearOff'](S, T, _stream, onData, onError, onDone, cancelOnError) {
        if (_stream == null) dart.nullFailed(I[83], 110, 38, "_stream");
        if (cancelOnError == null) dart.nullFailed(I[83], 111, 47, "cancelOnError");
        return new (async._ForwardingStreamSubscription$(S, T)).new(_stream, onData, onError, onDone, cancelOnError);
      }
      [_add](data) {
        T[_as](data);
        if (dart.test(this[_isClosed])) return;
        super[_add](data);
      }
      [_addError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[83], 126, 25, "error");
        if (stackTrace == null) dart.nullFailed(I[83], 126, 43, "stackTrace");
        if (dart.test(this[_isClosed])) return;
        super[_addError](error, stackTrace);
      }
      [_onPause]() {
        let t$3698;
        t$3698 = this[_subscription];
        t$3698 == null ? null : t$3698.pause();
      }
      [_onResume]() {
        let t$3698;
        t$3698 = this[_subscription];
        t$3698 == null ? null : t$3698.resume();
      }
      [_onCancel]() {
        let subscription = this[_subscription];
        if (subscription != null) {
          this[_subscription] = null;
          return subscription.cancel();
        }
        return null;
      }
      [_handleData$](data) {
        S[_as](data);
        this[_stream$][_handleData$](data, this);
      }
      [_handleError$](error, stackTrace) {
        if (stackTrace == null) dart.nullFailed(I[83], 156, 39, "stackTrace");
        this[_stream$][_handleError$](T$.Object()[_as](error), stackTrace, this);
      }
      [_handleDone$]() {
        this[_stream$][_handleDone$](this);
      }
    }
    (_ForwardingStreamSubscription.new = function(_stream, onData, onError, onDone, cancelOnError) {
      if (_stream == null) dart.nullFailed(I[83], 110, 38, "_stream");
      if (cancelOnError == null) dart.nullFailed(I[83], 111, 47, "cancelOnError");
      this[_subscription] = null;
      this[_stream$] = _stream;
      this.$ti = this.$ti || __t$_ForwardingStreamSubscriptionOfS$T();
      dart.global.Object.getPrototypeOf(_ForwardingStreamSubscription).new.call(this, onData, onError, onDone, cancelOnError);
      this[_subscription] = this[_stream$][_source$4].listen(dart.bind(this, _handleData$), {onError: dart.bind(this, _handleError$), onDone: dart.bind(this, _handleDone$)});
    }).prototype = _ForwardingStreamSubscription.prototype;
    dart.addRtiResources(_ForwardingStreamSubscription, ["async|_ForwardingStreamSubscription"]);
    dart.setMethodSignature(_ForwardingStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [_handleData$]: T$.ObjectNTovoid(),
      [_handleError$]: T$1.dynamicAndStackTraceTovoid(),
      [_handleDone$]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_ForwardingStreamSubscription))));
    dart.setLibraryUri(_ForwardingStreamSubscription, I[39]);
    dart.setFieldSignature(_ForwardingStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [_stream$]: {type: __t$_ForwardingStreamOfS$T(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_subscription]: {type: __t$StreamSubscriptionNOfS(), isConst: false, isFinal: false, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_ForwardingStreamSubscription))));
    return _ForwardingStreamSubscription;
  });
  async._ForwardingStreamSubscription = async._ForwardingStreamSubscription$();
  var _test$ = dart.privateName(async, "_test");
  async._WhereStream$ = dart.generic(T => {
    var __t$_WhereStreamOfT = () => (__t$_WhereStreamOfT = dart.constFn(T[_eval]("async|_WhereStream<0>")))();
    var __t$TAnd_EventSinkOfTTovoid = () => (__t$TAnd_EventSinkOfTTovoid = dart.constFn(T[_eval]("~(0,async|_EventSink<0>)")))();
    var __t$TTobool = () => (__t$TTobool = dart.constFn(T[_eval]("core|bool(0)")))();
    var __t$_ForwardingStreamOfT$T = () => (__t$_ForwardingStreamOfT$T = dart.constFn(async._ForwardingStream$(T, T)))();
    class _WhereStream extends __t$_ForwardingStreamOfT$T() {
      static ['_#new#tearOff'](T, source, test) {
        if (source == null) dart.nullFailed(I[83], 182, 26, "source");
        if (test == null) dart.nullFailed(I[83], 182, 39, "test");
        return new (async._WhereStream$(T)).new(source, test);
      }
      [_handleData$](inputEvent, sink) {
        let t$3698;
        if (sink == null) dart.nullFailed(I[83], 186, 48, "sink");
        let satisfies = null;
        try {
          satisfies = (t$3698 = inputEvent, this[_test$](t$3698));
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            async._addErrorWithReplacement(sink, e, s);
            return;
          } else
            throw t$36$35e;
        }
        if (dart.test(satisfies)) {
          sink[_add](inputEvent);
        }
      }
    }
    (_WhereStream.new = function(source, test) {
      if (source == null) dart.nullFailed(I[83], 182, 26, "source");
      if (test == null) dart.nullFailed(I[83], 182, 39, "test");
      this[_test$] = test;
      this.$ti = this.$ti || __t$_WhereStreamOfT();
      dart.global.Object.getPrototypeOf(_WhereStream).new.call(this, source);
      ;
    }).prototype = _WhereStream.prototype;
    dart.addRtiResources(_WhereStream, ["async|_WhereStream"]);
    dart.setMethodSignature(_WhereStream, () => dart.global.Object.setPrototypeOf({[_handleData$]: __t$TAnd_EventSinkOfTTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_WhereStream))));
    dart.setLibraryUri(_WhereStream, I[39]);
    dart.setFieldSignature(_WhereStream, () => dart.global.Object.setPrototypeOf({[_test$]: {type: __t$TTobool(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_WhereStream))));
    return _WhereStream;
  });
  async._WhereStream = async._WhereStream$();
  var _transform = dart.privateName(async, "_transform");
  async._MapStream$ = dart.generic((S, T) => {
    var __t$_MapStreamOfS$T = () => (__t$_MapStreamOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_MapStream<1,2>")))();
    var __t$SAnd_EventSinkOfTTovoid = () => (__t$SAnd_EventSinkOfTTovoid = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("~(1,async|_EventSink<2>)")))();
    var __t$SToT = () => (__t$SToT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("2(1)")))();
    var __t$_ForwardingStreamOfS$T = () => (__t$_ForwardingStreamOfS$T = dart.constFn(async._ForwardingStream$(S, T)))();
    class _MapStream extends __t$_ForwardingStreamOfS$T() {
      static ['_#new#tearOff'](S, T, source, transform) {
        if (source == null) dart.nullFailed(I[83], 206, 24, "source");
        if (transform == null) dart.nullFailed(I[83], 206, 34, "transform");
        return new (async._MapStream$(S, T)).new(source, transform);
      }
      [_handleData$](inputEvent, sink) {
        let t$3699;
        if (sink == null) dart.nullFailed(I[83], 210, 48, "sink");
        let outputEvent = null;
        try {
          outputEvent = (t$3699 = inputEvent, this[_transform](t$3699));
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            async._addErrorWithReplacement(sink, e, s);
            return;
          } else
            throw t$36$35e;
        }
        sink[_add](outputEvent);
      }
    }
    (_MapStream.new = function(source, transform) {
      if (source == null) dart.nullFailed(I[83], 206, 24, "source");
      if (transform == null) dart.nullFailed(I[83], 206, 34, "transform");
      this[_transform] = transform;
      this.$ti = this.$ti || __t$_MapStreamOfS$T();
      dart.global.Object.getPrototypeOf(_MapStream).new.call(this, source);
      ;
    }).prototype = _MapStream.prototype;
    dart.addRtiResources(_MapStream, ["async|_MapStream"]);
    dart.setMethodSignature(_MapStream, () => dart.global.Object.setPrototypeOf({[_handleData$]: __t$SAnd_EventSinkOfTTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_MapStream))));
    dart.setLibraryUri(_MapStream, I[39]);
    dart.setFieldSignature(_MapStream, () => dart.global.Object.setPrototypeOf({[_transform]: {type: __t$SToT(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_MapStream))));
    return _MapStream;
  });
  async._MapStream = async._MapStream$();
  var _expand = dart.privateName(async, "_expand");
  async._ExpandStream$ = dart.generic((S, T) => {
    var __t$_ExpandStreamOfS$T = () => (__t$_ExpandStreamOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_ExpandStream<1,2>")))();
    var __t$SAnd_EventSinkOfTTovoid = () => (__t$SAnd_EventSinkOfTTovoid = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("~(1,async|_EventSink<2>)")))();
    var __t$SToIterableOfT = () => (__t$SToIterableOfT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("core|Iterable<2>(1)")))();
    var __t$_ForwardingStreamOfS$T = () => (__t$_ForwardingStreamOfS$T = dart.constFn(async._ForwardingStream$(S, T)))();
    class _ExpandStream extends __t$_ForwardingStreamOfS$T() {
      static ['_#new#tearOff'](S, T, source, expand) {
        if (source == null) dart.nullFailed(I[83], 226, 27, "source");
        if (expand == null) dart.nullFailed(I[83], 226, 47, "expand");
        return new (async._ExpandStream$(S, T)).new(source, expand);
      }
      [_handleData$](inputEvent, sink) {
        let t$36100;
        if (sink == null) dart.nullFailed(I[83], 230, 48, "sink");
        try {
          for (let value of (t$36100 = inputEvent, this[_expand](t$36100))) {
            sink[_add](value);
          }
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            async._addErrorWithReplacement(sink, e, s);
          } else
            throw t$36$35e;
        }
      }
    }
    (_ExpandStream.new = function(source, expand) {
      if (source == null) dart.nullFailed(I[83], 226, 27, "source");
      if (expand == null) dart.nullFailed(I[83], 226, 47, "expand");
      this[_expand] = expand;
      this.$ti = this.$ti || __t$_ExpandStreamOfS$T();
      dart.global.Object.getPrototypeOf(_ExpandStream).new.call(this, source);
      ;
    }).prototype = _ExpandStream.prototype;
    dart.addRtiResources(_ExpandStream, ["async|_ExpandStream"]);
    dart.setMethodSignature(_ExpandStream, () => dart.global.Object.setPrototypeOf({[_handleData$]: __t$SAnd_EventSinkOfTTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_ExpandStream))));
    dart.setLibraryUri(_ExpandStream, I[39]);
    dart.setFieldSignature(_ExpandStream, () => dart.global.Object.setPrototypeOf({[_expand]: {type: __t$SToIterableOfT(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_ExpandStream))));
    return _ExpandStream;
  });
  async._ExpandStream = async._ExpandStream$();
  async._HandleErrorStream$ = dart.generic(T => {
    var __t$_HandleErrorStreamOfT = () => (__t$_HandleErrorStreamOfT = dart.constFn(T[_eval]("async|_HandleErrorStream<0>")))();
    var __t$TAnd_EventSinkOfTTovoid = () => (__t$TAnd_EventSinkOfTTovoid = dart.constFn(T[_eval]("~(0,async|_EventSink<0>)")))();
    var __t$ObjectAndStackTraceAnd_EventSinkOfTTovoid = () => (__t$ObjectAndStackTraceAnd_EventSinkOfTTovoid = dart.constFn(T[_eval]("~(core|Object,core|StackTrace,async|_EventSink<0>)")))();
    var __t$_ForwardingStreamOfT$T = () => (__t$_ForwardingStreamOfT$T = dart.constFn(async._ForwardingStream$(T, T)))();
    class _HandleErrorStream extends __t$_ForwardingStreamOfT$T() {
      static ['_#new#tearOff'](T, source, _onError, _test) {
        if (source == null) dart.nullFailed(I[83], 249, 32, "source");
        if (_onError == null) dart.nullFailed(I[83], 249, 45, "_onError");
        return new (async._HandleErrorStream$(T)).new(source, _onError, _test);
      }
      [_handleData$](data, sink) {
        if (sink == null) dart.nullFailed(I[83], 252, 42, "sink");
        sink[_add](data);
      }
      [_handleError$](error, stackTrace, sink) {
        let t$36103, t$36102;
        if (error == null) dart.nullFailed(I[83], 256, 28, "error");
        if (stackTrace == null) dart.nullFailed(I[83], 256, 46, "stackTrace");
        if (sink == null) dart.nullFailed(I[83], 256, 72, "sink");
        let matches = true;
        let test = this[_test$];
        if (test != null) {
          try {
            matches = test(error);
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            let s = dart.stackTrace(t$36$35e);
            if (T$.Object()[_is](e)) {
              async._addErrorWithReplacement(sink, e, s);
              return;
            } else
              throw t$36$35e;
          }
        }
        if (dart.test(matches)) {
          try {
            t$36102 = error;
            t$36103 = stackTrace;
            this[_onError$](t$36102, t$36103);
          } catch (t$36$35e$) {
            let e = dart.getThrown(t$36$35e$);
            let s = dart.stackTrace(t$36$35e$);
            if (T$.Object()[_is](e)) {
              if (core.identical(e, error)) {
                sink[_addError](error, stackTrace);
              } else {
                async._addErrorWithReplacement(sink, e, s);
              }
              return;
            } else
              throw t$36$35e$;
          }
        } else {
          sink[_addError](error, stackTrace);
        }
      }
    }
    (_HandleErrorStream.new = function(source, _onError, _test) {
      if (source == null) dart.nullFailed(I[83], 249, 32, "source");
      if (_onError == null) dart.nullFailed(I[83], 249, 45, "_onError");
      this[_onError$] = _onError;
      this[_test$] = _test;
      this.$ti = this.$ti || __t$_HandleErrorStreamOfT();
      dart.global.Object.getPrototypeOf(_HandleErrorStream).new.call(this, source);
      ;
    }).prototype = _HandleErrorStream.prototype;
    dart.addRtiResources(_HandleErrorStream, ["async|_HandleErrorStream"]);
    dart.setMethodSignature(_HandleErrorStream, () => dart.global.Object.setPrototypeOf({
      [_handleData$]: __t$TAnd_EventSinkOfTTovoid(),
      [_handleError$]: __t$ObjectAndStackTraceAnd_EventSinkOfTTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_HandleErrorStream))));
    dart.setLibraryUri(_HandleErrorStream, I[39]);
    dart.setFieldSignature(_HandleErrorStream, () => dart.global.Object.setPrototypeOf({
      [_onError$]: {type: T$.ObjectAndStackTraceTovoid(), isConst: false, isFinal: true},
      [_test$]: {type: T$1.ObjectToNbool(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_HandleErrorStream))));
    return _HandleErrorStream;
  });
  async._HandleErrorStream = async._HandleErrorStream$();
  var _count = dart.privateName(async, "_count");
  var _subState = dart.privateName(async, "_subState");
  async._TakeStream$ = dart.generic(T => {
    var __t$_TakeStreamOfT = () => (__t$_TakeStreamOfT = dart.constFn(T[_eval]("async|_TakeStream<0>")))();
    var __t$_StateStreamSubscriptionOfint$T = () => (__t$_StateStreamSubscriptionOfint$T = dart.constFn(T[_eval]("async|_StateStreamSubscription<core|int,0>")))();
    var __t$TAnd_EventSinkOfTTovoid = () => (__t$TAnd_EventSinkOfTTovoid = dart.constFn(T[_eval]("~(0,async|_EventSink<0>)")))();
    var __t$_DoneStreamSubscriptionOfT = () => (__t$_DoneStreamSubscriptionOfT = dart.constFn(async._DoneStreamSubscription$(T)))();
    var __t$_StateStreamSubscriptionOfint$T$ = () => (__t$_StateStreamSubscriptionOfint$T$ = dart.constFn(async._StateStreamSubscription$(T$.int(), T)))();
    var __t$_ForwardingStreamOfT$T = () => (__t$_ForwardingStreamOfT$T = dart.constFn(async._ForwardingStream$(T, T)))();
    class _TakeStream extends __t$_ForwardingStreamOfT$T() {
      static ['_#new#tearOff'](T, source, count) {
        if (source == null) dart.nullFailed(I[83], 287, 25, "source");
        if (count == null) dart.nullFailed(I[83], 287, 37, "count");
        return new (async._TakeStream$(T)).new(source, count);
      }
      [_createSubscription](onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[83], 292, 47, "cancelOnError");
        if (this[_count] === 0) {
          this[_source$4].listen(null).cancel();
          return new (__t$_DoneStreamSubscriptionOfT()).new(onDone);
        }
        return new (__t$_StateStreamSubscriptionOfint$T$()).new(this, onData, onError, onDone, cancelOnError, this[_count]);
      }
      [_handleData$](inputEvent, sink) {
        if (sink == null) dart.nullFailed(I[83], 301, 48, "sink");
        let subscription = __t$_StateStreamSubscriptionOfint$T()[_as](sink);
        let count = subscription[_subState];
        if (dart.notNull(count) > 0) {
          sink[_add](inputEvent);
          count = dart.notNull(count) - 1;
          subscription[_subState] = count;
          if (count === 0) {
            sink[_close]();
          }
        }
      }
    }
    (_TakeStream.new = function(source, count) {
      if (source == null) dart.nullFailed(I[83], 287, 25, "source");
      if (count == null) dart.nullFailed(I[83], 287, 37, "count");
      this[_count] = count;
      this.$ti = this.$ti || __t$_TakeStreamOfT();
      dart.global.Object.getPrototypeOf(_TakeStream).new.call(this, source);
      ;
    }).prototype = _TakeStream.prototype;
    dart.addRtiResources(_TakeStream, ["async|_TakeStream"]);
    dart.setMethodSignature(_TakeStream, () => dart.global.Object.setPrototypeOf({[_handleData$]: __t$TAnd_EventSinkOfTTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_TakeStream))));
    dart.setLibraryUri(_TakeStream, I[39]);
    dart.setFieldSignature(_TakeStream, () => dart.global.Object.setPrototypeOf({[_count]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_TakeStream))));
    return _TakeStream;
  });
  async._TakeStream = async._TakeStream$();
  var _subState$ = dart.privateName(async, "_StateStreamSubscription._subState");
  async._StateStreamSubscription$ = dart.generic((S, T) => {
    var __t$_StateStreamSubscriptionOfS$T = () => (__t$_StateStreamSubscriptionOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_StateStreamSubscription<1,2>")))();
    var __t$_ForwardingStreamSubscriptionOfT$T = () => (__t$_ForwardingStreamSubscriptionOfT$T = dart.constFn(async._ForwardingStreamSubscription$(T, T)))();
    class _StateStreamSubscription extends __t$_ForwardingStreamSubscriptionOfT$T() {
      get [_subState]() {
        return this[_subState$];
      }
      set [_subState](value) {
        this[_subState$] = S[_as](value);
      }
      static ['_#new#tearOff'](S, T, stream, onData, onError, onDone, cancelOnError, _subState) {
        if (stream == null) dart.nullFailed(I[83], 324, 52, "stream");
        if (cancelOnError == null) dart.nullFailed(I[83], 325, 47, "cancelOnError");
        return new (async._StateStreamSubscription$(S, T)).new(stream, onData, onError, onDone, cancelOnError, _subState);
      }
    }
    (_StateStreamSubscription.new = function(stream, onData, onError, onDone, cancelOnError, _subState) {
      if (stream == null) dart.nullFailed(I[83], 324, 52, "stream");
      if (cancelOnError == null) dart.nullFailed(I[83], 325, 47, "cancelOnError");
      this[_subState$] = _subState;
      this.$ti = this.$ti || __t$_StateStreamSubscriptionOfS$T();
      dart.global.Object.getPrototypeOf(_StateStreamSubscription).new.call(this, stream, onData, onError, onDone, cancelOnError);
      ;
    }).prototype = _StateStreamSubscription.prototype;
    dart.addRtiResources(_StateStreamSubscription, ["async|_StateStreamSubscription"]);
    dart.setLibraryUri(_StateStreamSubscription, I[39]);
    dart.setFieldSignature(_StateStreamSubscription, () => dart.global.Object.setPrototypeOf({[_subState]: {type: S, isConst: false, isFinal: false}}, dart.getFields(dart.global.Object.getPrototypeOf(_StateStreamSubscription))));
    return _StateStreamSubscription;
  });
  async._StateStreamSubscription = async._StateStreamSubscription$();
  async._TakeWhileStream$ = dart.generic(T => {
    var __t$_TakeWhileStreamOfT = () => (__t$_TakeWhileStreamOfT = dart.constFn(T[_eval]("async|_TakeWhileStream<0>")))();
    var __t$TAnd_EventSinkOfTTovoid = () => (__t$TAnd_EventSinkOfTTovoid = dart.constFn(T[_eval]("~(0,async|_EventSink<0>)")))();
    var __t$TTobool = () => (__t$TTobool = dart.constFn(T[_eval]("core|bool(0)")))();
    var __t$_ForwardingStreamOfT$T = () => (__t$_ForwardingStreamOfT$T = dart.constFn(async._ForwardingStream$(T, T)))();
    class _TakeWhileStream extends __t$_ForwardingStreamOfT$T() {
      static ['_#new#tearOff'](T, source, test) {
        if (source == null) dart.nullFailed(I[83], 332, 30, "source");
        if (test == null) dart.nullFailed(I[83], 332, 43, "test");
        return new (async._TakeWhileStream$(T)).new(source, test);
      }
      [_handleData$](inputEvent, sink) {
        let t$36103;
        if (sink == null) dart.nullFailed(I[83], 336, 48, "sink");
        let satisfies = null;
        try {
          satisfies = (t$36103 = inputEvent, this[_test$](t$36103));
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            async._addErrorWithReplacement(sink, e, s);
            sink[_close]();
            return;
          } else
            throw t$36$35e;
        }
        if (dart.test(satisfies)) {
          sink[_add](inputEvent);
        } else {
          sink[_close]();
        }
      }
    }
    (_TakeWhileStream.new = function(source, test) {
      if (source == null) dart.nullFailed(I[83], 332, 30, "source");
      if (test == null) dart.nullFailed(I[83], 332, 43, "test");
      this[_test$] = test;
      this.$ti = this.$ti || __t$_TakeWhileStreamOfT();
      dart.global.Object.getPrototypeOf(_TakeWhileStream).new.call(this, source);
      ;
    }).prototype = _TakeWhileStream.prototype;
    dart.addRtiResources(_TakeWhileStream, ["async|_TakeWhileStream"]);
    dart.setMethodSignature(_TakeWhileStream, () => dart.global.Object.setPrototypeOf({[_handleData$]: __t$TAnd_EventSinkOfTTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_TakeWhileStream))));
    dart.setLibraryUri(_TakeWhileStream, I[39]);
    dart.setFieldSignature(_TakeWhileStream, () => dart.global.Object.setPrototypeOf({[_test$]: {type: __t$TTobool(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_TakeWhileStream))));
    return _TakeWhileStream;
  });
  async._TakeWhileStream = async._TakeWhileStream$();
  async._SkipStream$ = dart.generic(T => {
    var __t$_SkipStreamOfT = () => (__t$_SkipStreamOfT = dart.constFn(T[_eval]("async|_SkipStream<0>")))();
    var __t$_StateStreamSubscriptionOfint$T = () => (__t$_StateStreamSubscriptionOfint$T = dart.constFn(T[_eval]("async|_StateStreamSubscription<core|int,0>")))();
    var __t$TAnd_EventSinkOfTTovoid = () => (__t$TAnd_EventSinkOfTTovoid = dart.constFn(T[_eval]("~(0,async|_EventSink<0>)")))();
    var __t$_StateStreamSubscriptionOfint$T$ = () => (__t$_StateStreamSubscriptionOfint$T$ = dart.constFn(async._StateStreamSubscription$(T$.int(), T)))();
    var __t$_ForwardingStreamOfT$T = () => (__t$_ForwardingStreamOfT$T = dart.constFn(async._ForwardingStream$(T, T)))();
    class _SkipStream extends __t$_ForwardingStreamOfT$T() {
      static ['_#new#tearOff'](T, source, count) {
        if (source == null) dart.nullFailed(I[83], 357, 25, "source");
        if (count == null) dart.nullFailed(I[83], 357, 37, "count");
        return new (async._SkipStream$(T)).new(source, count);
      }
      [_createSubscription](onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[83], 366, 47, "cancelOnError");
        return new (__t$_StateStreamSubscriptionOfint$T$()).new(this, onData, onError, onDone, cancelOnError, this[_count]);
      }
      [_handleData$](inputEvent, sink) {
        if (sink == null) dart.nullFailed(I[83], 371, 48, "sink");
        let subscription = __t$_StateStreamSubscriptionOfint$T()[_as](sink);
        let count = subscription[_subState];
        if (dart.notNull(count) > 0) {
          subscription[_subState] = dart.notNull(count) - 1;
          return;
        }
        sink[_add](inputEvent);
      }
    }
    (_SkipStream.new = function(source, count) {
      if (source == null) dart.nullFailed(I[83], 357, 25, "source");
      if (count == null) dart.nullFailed(I[83], 357, 37, "count");
      this[_count] = count;
      this.$ti = this.$ti || __t$_SkipStreamOfT();
      dart.global.Object.getPrototypeOf(_SkipStream).new.call(this, source);
      core.RangeError.checkNotNegative(count, "count");
    }).prototype = _SkipStream.prototype;
    dart.addRtiResources(_SkipStream, ["async|_SkipStream"]);
    dart.setMethodSignature(_SkipStream, () => dart.global.Object.setPrototypeOf({[_handleData$]: __t$TAnd_EventSinkOfTTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_SkipStream))));
    dart.setLibraryUri(_SkipStream, I[39]);
    dart.setFieldSignature(_SkipStream, () => dart.global.Object.setPrototypeOf({[_count]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_SkipStream))));
    return _SkipStream;
  });
  async._SkipStream = async._SkipStream$();
  async._SkipWhileStream$ = dart.generic(T => {
    var __t$_SkipWhileStreamOfT = () => (__t$_SkipWhileStreamOfT = dart.constFn(T[_eval]("async|_SkipWhileStream<0>")))();
    var __t$_StateStreamSubscriptionOfbool$T = () => (__t$_StateStreamSubscriptionOfbool$T = dart.constFn(T[_eval]("async|_StateStreamSubscription<core|bool,0>")))();
    var __t$TAnd_EventSinkOfTTovoid = () => (__t$TAnd_EventSinkOfTTovoid = dart.constFn(T[_eval]("~(0,async|_EventSink<0>)")))();
    var __t$TTobool = () => (__t$TTobool = dart.constFn(T[_eval]("core|bool(0)")))();
    var __t$_StateStreamSubscriptionOfbool$T$ = () => (__t$_StateStreamSubscriptionOfbool$T$ = dart.constFn(async._StateStreamSubscription$(T$.bool(), T)))();
    var __t$_ForwardingStreamOfT$T = () => (__t$_ForwardingStreamOfT$T = dart.constFn(async._ForwardingStream$(T, T)))();
    class _SkipWhileStream extends __t$_ForwardingStreamOfT$T() {
      static ['_#new#tearOff'](T, source, test) {
        if (source == null) dart.nullFailed(I[83], 385, 30, "source");
        if (test == null) dart.nullFailed(I[83], 385, 43, "test");
        return new (async._SkipWhileStream$(T)).new(source, test);
      }
      [_createSubscription](onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[83], 390, 47, "cancelOnError");
        return new (__t$_StateStreamSubscriptionOfbool$T$()).new(this, onData, onError, onDone, cancelOnError, false);
      }
      [_handleData$](inputEvent, sink) {
        let t$36104;
        if (sink == null) dart.nullFailed(I[83], 395, 48, "sink");
        let subscription = __t$_StateStreamSubscriptionOfbool$T()[_as](sink);
        let hasFailed = subscription[_subState];
        if (dart.test(hasFailed)) {
          sink[_add](inputEvent);
          return;
        }
        let satisfies = null;
        try {
          satisfies = (t$36104 = inputEvent, this[_test$](t$36104));
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            async._addErrorWithReplacement(sink, e, s);
            subscription[_subState] = true;
            return;
          } else
            throw t$36$35e;
        }
        if (!dart.test(satisfies)) {
          subscription[_subState] = true;
          sink[_add](inputEvent);
        }
      }
    }
    (_SkipWhileStream.new = function(source, test) {
      if (source == null) dart.nullFailed(I[83], 385, 30, "source");
      if (test == null) dart.nullFailed(I[83], 385, 43, "test");
      this[_test$] = test;
      this.$ti = this.$ti || __t$_SkipWhileStreamOfT();
      dart.global.Object.getPrototypeOf(_SkipWhileStream).new.call(this, source);
      ;
    }).prototype = _SkipWhileStream.prototype;
    dart.addRtiResources(_SkipWhileStream, ["async|_SkipWhileStream"]);
    dart.setMethodSignature(_SkipWhileStream, () => dart.global.Object.setPrototypeOf({[_handleData$]: __t$TAnd_EventSinkOfTTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_SkipWhileStream))));
    dart.setLibraryUri(_SkipWhileStream, I[39]);
    dart.setFieldSignature(_SkipWhileStream, () => dart.global.Object.setPrototypeOf({[_test$]: {type: __t$TTobool(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_SkipWhileStream))));
    return _SkipWhileStream;
  });
  async._SkipWhileStream = async._SkipWhileStream$();
  var _equals = dart.privateName(async, "_equals");
  async._DistinctStream$ = dart.generic(T => {
    var __t$_DistinctStreamOfT = () => (__t$_DistinctStreamOfT = dart.constFn(T[_eval]("async|_DistinctStream<0>")))();
    var __t$_StateStreamSubscriptionOfObjectN$T = () => (__t$_StateStreamSubscriptionOfObjectN$T = dart.constFn(T[_eval]("async|_StateStreamSubscription<core|Object?,0>")))();
    var __t$TAnd_EventSinkOfTTovoid = () => (__t$TAnd_EventSinkOfTTovoid = dart.constFn(T[_eval]("~(0,async|_EventSink<0>)")))();
    var __t$TAndTToNbool = () => (__t$TAndTToNbool = dart.constFn(T[_eval]("core|bool(0,0)?")))();
    var __t$_StateStreamSubscriptionOfObjectN$T$ = () => (__t$_StateStreamSubscriptionOfObjectN$T$ = dart.constFn(async._StateStreamSubscription$(T$.ObjectN(), T)))();
    var __t$_ForwardingStreamOfT$T = () => (__t$_ForwardingStreamOfT$T = dart.constFn(async._ForwardingStream$(T, T)))();
    class _DistinctStream extends __t$_ForwardingStreamOfT$T() {
      static ['_#new#tearOff'](T, source, equals) {
        if (source == null) dart.nullFailed(I[83], 423, 29, "source");
        return new (async._DistinctStream$(T)).new(source, equals);
      }
      [_createSubscription](onData, onError, onDone, cancelOnError) {
        if (cancelOnError == null) dart.nullFailed(I[83], 428, 47, "cancelOnError");
        return new (__t$_StateStreamSubscriptionOfObjectN$T$()).new(this, onData, onError, onDone, cancelOnError, async._DistinctStream._SENTINEL);
      }
      [_handleData$](inputEvent, sink) {
        if (sink == null) dart.nullFailed(I[83], 433, 48, "sink");
        let subscription = __t$_StateStreamSubscriptionOfObjectN$T()[_as](sink);
        let previous = subscription[_subState];
        if (core.identical(previous, async._DistinctStream._SENTINEL)) {
          subscription[_subState] = inputEvent;
          sink[_add](inputEvent);
        } else {
          let previousEvent = T[_as](previous);
          let equals = this[_equals];
          let isEqual = null;
          try {
            if (equals == null) {
              isEqual = dart.equals(previousEvent, inputEvent);
            } else {
              isEqual = equals(previousEvent, inputEvent);
            }
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            let s = dart.stackTrace(t$36$35e);
            if (T$.Object()[_is](e)) {
              async._addErrorWithReplacement(sink, e, s);
              return;
            } else
              throw t$36$35e;
          }
          if (!dart.test(isEqual)) {
            sink[_add](inputEvent);
            subscription[_subState] = inputEvent;
          }
        }
      }
    }
    (_DistinctStream.new = function(source, equals) {
      if (source == null) dart.nullFailed(I[83], 423, 29, "source");
      this[_equals] = equals;
      this.$ti = this.$ti || __t$_DistinctStreamOfT();
      dart.global.Object.getPrototypeOf(_DistinctStream).new.call(this, source);
      ;
    }).prototype = _DistinctStream.prototype;
    dart.addRtiResources(_DistinctStream, ["async|_DistinctStream"]);
    dart.setMethodSignature(_DistinctStream, () => dart.global.Object.setPrototypeOf({[_handleData$]: __t$TAnd_EventSinkOfTTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_DistinctStream))));
    dart.setLibraryUri(_DistinctStream, I[39]);
    dart.setFieldSignature(_DistinctStream, () => dart.global.Object.setPrototypeOf({[_equals]: {type: __t$TAndTToNbool(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_DistinctStream))));
    dart.setStaticFieldSignature(_DistinctStream, () => ['_SENTINEL']);
    return _DistinctStream;
  });
  async._DistinctStream = async._DistinctStream$();
  dart.defineLazy(async._DistinctStream, {
    /*async._DistinctStream._SENTINEL*/get _SENTINEL() {
      return new core.Object.new();
    }
  }, false);
  async._EventSinkWrapper$ = dart.generic(T => {
    var __t$_EventSinkWrapperOfT = () => (__t$_EventSinkWrapperOfT = dart.constFn(T[_eval]("async|_EventSinkWrapper<0>")))();
    var __t$_EventSinkOfT = () => (__t$_EventSinkOfT = dart.constFn(T[_eval]("async|_EventSink<0>")))();
    class _EventSinkWrapper extends core.Object {
      static ['_#new#tearOff'](T, _sink) {
        if (_sink == null) dart.nullFailed(I[84], 10, 26, "_sink");
        return new (async._EventSinkWrapper$(T)).new(_sink);
      }
      add(data) {
        T[_as](data);
        this[_sink$][_add](data);
      }
      addError(error, stackTrace = null) {
        let t$36106;
        if (error == null) dart.nullFailed(I[84], 16, 24, "error");
        this[_sink$][_addError](error, (t$36106 = stackTrace, t$36106 == null ? async.AsyncError.defaultStackTrace(error) : t$36106));
      }
      close() {
        this[_sink$][_close]();
      }
    }
    (_EventSinkWrapper.new = function(_sink) {
      if (_sink == null) dart.nullFailed(I[84], 10, 26, "_sink");
      this[_sink$] = _sink;
      this.$ti = this.$ti || __t$_EventSinkWrapperOfT();
      ;
    }).prototype = _EventSinkWrapper.prototype;
    dart.addRtiResources(_EventSinkWrapper, ["async|_EventSinkWrapper", "async|EventSink", "core|Sink"]);
    dart.setMethodSignature(_EventSinkWrapper, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      addError: T$1.ObjectAndStackTraceNTovoid(),
      close: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_EventSinkWrapper))));
    dart.setLibraryUri(_EventSinkWrapper, I[39]);
    dart.setFieldSignature(_EventSinkWrapper, () => dart.global.Object.setPrototypeOf({[_sink$]: {type: __t$_EventSinkOfT(), isConst: false, isFinal: false, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(_EventSinkWrapper))));
    return _EventSinkWrapper;
  });
  async._EventSinkWrapper = async._EventSinkWrapper$();
  var ___SinkTransformerStreamSubscription__transformerSink = dart.privateName(async, "_#_SinkTransformerStreamSubscription#_transformerSink");
  var ___SinkTransformerStreamSubscription__transformerSink_isSet = dart.privateName(async, "_#_SinkTransformerStreamSubscription#_transformerSink#isSet");
  var _transformerSink = dart.privateName(async, "_transformerSink");
  async._SinkTransformerStreamSubscription$ = dart.generic((S, T) => {
    var __t$_SinkTransformerStreamSubscriptionOfS$T = () => (__t$_SinkTransformerStreamSubscriptionOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_SinkTransformerStreamSubscription<1,2>")))();
    var __t$EventSinkOfS = () => (__t$EventSinkOfS = dart.constFn(S[_eval]("async|EventSink<0>")))();
    var __t$EventSinkNOfS = () => (__t$EventSinkNOfS = dart.constFn(S[_eval]("async|EventSink<0>?")))();
    var __t$StreamSubscriptionNOfS = () => (__t$StreamSubscriptionNOfS = dart.constFn(S[_eval]("async|StreamSubscription<0>?")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$_EventSinkWrapperOfT = () => (__t$_EventSinkWrapperOfT = dart.constFn(async._EventSinkWrapper$(T)))();
    var __t$_BufferingStreamSubscriptionOfT = () => (__t$_BufferingStreamSubscriptionOfT = dart.constFn(async._BufferingStreamSubscription$(T)))();
    class _SinkTransformerStreamSubscription extends __t$_BufferingStreamSubscriptionOfT() {
      get [_transformerSink]() {
        let t$36106;
        return dart.test(this[___SinkTransformerStreamSubscription__transformerSink_isSet]) ? (t$36106 = this[___SinkTransformerStreamSubscription__transformerSink], t$36106) : dart.throw(new _internal.LateError.fieldNI("_transformerSink"));
      }
      set [_transformerSink](_transformerSink$35param) {
        if (_transformerSink$35param == null) dart.nullFailed(I[84], 33, 21, "_transformerSink#param");
        this[___SinkTransformerStreamSubscription__transformerSink_isSet] = true;
        this[___SinkTransformerStreamSubscription__transformerSink] = _transformerSink$35param;
      }
      static ['_#new#tearOff'](S, T, source, mapper, onData, onError, onDone, cancelOnError) {
        if (source == null) dart.nullFailed(I[84], 39, 17, "source");
        if (mapper == null) dart.nullFailed(I[84], 40, 25, "mapper");
        if (cancelOnError == null) dart.nullFailed(I[84], 44, 12, "cancelOnError");
        return new (async._SinkTransformerStreamSubscription$(S, T)).new(source, mapper, onData, onError, onDone, cancelOnError);
      }
      [_add](data) {
        if (dart.test(this[_isClosed])) {
          dart.throw(new core.StateError.new("Stream is already closed"));
        }
        super[_add](data);
      }
      [_addError](error, stackTrace) {
        if (error == null) dart.nullFailed(I[84], 71, 25, "error");
        if (stackTrace == null) dart.nullFailed(I[84], 71, 43, "stackTrace");
        if (dart.test(this[_isClosed])) {
          dart.throw(new core.StateError.new("Stream is already closed"));
        }
        super[_addError](error, stackTrace);
      }
      [_close]() {
        if (dart.test(this[_isClosed])) {
          dart.throw(new core.StateError.new("Stream is already closed"));
        }
        super[_close]();
      }
      [_onPause]() {
        let t$36106;
        t$36106 = this[_subscription];
        t$36106 == null ? null : t$36106.pause();
      }
      [_onResume]() {
        let t$36106;
        t$36106 = this[_subscription];
        t$36106 == null ? null : t$36106.resume();
      }
      [_onCancel]() {
        let subscription = this[_subscription];
        if (subscription != null) {
          this[_subscription] = null;
          return subscription.cancel();
        }
        return null;
      }
      [_handleData$](data) {
        S[_as](data);
        try {
          this[_transformerSink].add(data);
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            this[_addError](e, s);
          } else
            throw t$36$35e;
        }
      }
      [_handleError$](error, stackTrace) {
        if (error == null) dart.nullFailed(I[84], 117, 28, "error");
        if (stackTrace == null) dart.nullFailed(I[84], 117, 46, "stackTrace");
        try {
          this[_transformerSink].addError(error, stackTrace);
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            if (core.identical(e, error)) {
              this[_addError](error, stackTrace);
            } else {
              this[_addError](e, s);
            }
          } else
            throw t$36$35e;
        }
      }
      [_handleDone$]() {
        try {
          this[_subscription] = null;
          this[_transformerSink].close();
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            this[_addError](e, s);
          } else
            throw t$36$35e;
        }
      }
    }
    (_SinkTransformerStreamSubscription.new = function(source, mapper, onData, onError, onDone, cancelOnError) {
      if (source == null) dart.nullFailed(I[84], 39, 17, "source");
      if (mapper == null) dart.nullFailed(I[84], 40, 25, "mapper");
      if (cancelOnError == null) dart.nullFailed(I[84], 44, 12, "cancelOnError");
      this[___SinkTransformerStreamSubscription__transformerSink] = null;
      this[___SinkTransformerStreamSubscription__transformerSink_isSet] = false;
      this[_subscription] = null;
      this.$ti = this.$ti || __t$_SinkTransformerStreamSubscriptionOfS$T();
      dart.global.Object.getPrototypeOf(_SinkTransformerStreamSubscription).new.call(this, onData, onError, onDone, cancelOnError);
      this[_transformerSink] = mapper(new (__t$_EventSinkWrapperOfT()).new(this));
      this[_subscription] = source.listen(dart.bind(this, _handleData$), {onError: dart.bind(this, _handleError$), onDone: dart.bind(this, _handleDone$)});
    }).prototype = _SinkTransformerStreamSubscription.prototype;
    dart.addRtiResources(_SinkTransformerStreamSubscription, ["async|_SinkTransformerStreamSubscription"]);
    dart.setMethodSignature(_SinkTransformerStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [_add]: __t$TTovoid(),
      [_handleData$]: T$.ObjectNTovoid(),
      [_handleError$]: T$.ObjectAndStackTraceTovoid(),
      [_handleDone$]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SinkTransformerStreamSubscription))));
    dart.setGetterSignature(_SinkTransformerStreamSubscription, () => dart.global.Object.setPrototypeOf({[_transformerSink]: __t$EventSinkOfS()}, dart.getGetters(dart.global.Object.getPrototypeOf(_SinkTransformerStreamSubscription))));
    dart.setSetterSignature(_SinkTransformerStreamSubscription, () => dart.global.Object.setPrototypeOf({[_transformerSink]: __t$EventSinkOfS()}, dart.getSetters(dart.global.Object.getPrototypeOf(_SinkTransformerStreamSubscription))));
    dart.setLibraryUri(_SinkTransformerStreamSubscription, I[39]);
    dart.setFieldSignature(_SinkTransformerStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [___SinkTransformerStreamSubscription__transformerSink]: {type: __t$EventSinkNOfS(), isConst: false, isFinal: false, libraryUri: I[39]},
      [___SinkTransformerStreamSubscription__transformerSink_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_subscription]: {type: __t$StreamSubscriptionNOfS(), isConst: false, isFinal: false, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_SinkTransformerStreamSubscription))));
    return _SinkTransformerStreamSubscription;
  });
  async._SinkTransformerStreamSubscription = async._SinkTransformerStreamSubscription$();
  var _sinkMapper$ = dart.privateName(async, "_StreamSinkTransformer._sinkMapper");
  var _sinkMapper$0 = dart.privateName(async, "_sinkMapper");
  async._StreamSinkTransformer$ = dart.generic((S, T) => {
    var __t$_StreamSinkTransformerOfS$T = () => (__t$_StreamSinkTransformerOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_StreamSinkTransformer<1,2>")))();
    var __t$StreamOfS = () => (__t$StreamOfS = dart.constFn(S[_eval]("async|Stream<0>")))();
    var __t$EventSinkOfTToEventSinkOfS = () => (__t$EventSinkOfTToEventSinkOfS = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|EventSink<1>(async|EventSink<2>)")))();
    var __t$ObjectNToStreamOfT = () => (__t$ObjectNToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|Object?)")))();
    var __t$_BoundSinkStreamOfS$T = () => (__t$_BoundSinkStreamOfS$T = dart.constFn(async._BoundSinkStream$(S, T)))();
    var __t$StreamTransformerBaseOfS$T = () => (__t$StreamTransformerBaseOfS$T = dart.constFn(async.StreamTransformerBase$(S, T)))();
    class _StreamSinkTransformer extends __t$StreamTransformerBaseOfS$T() {
      get [_sinkMapper$0]() {
        return this[_sinkMapper$];
      }
      set [_sinkMapper$0](value) {
        super[_sinkMapper$0] = value;
      }
      static ['_#new#tearOff'](S, T, _sinkMapper) {
        if (_sinkMapper == null) dart.nullFailed(I[84], 149, 37, "_sinkMapper");
        return new (async._StreamSinkTransformer$(S, T)).new(_sinkMapper);
      }
      bind(stream) {
        __t$StreamOfS()[_as](stream);
        if (stream == null) dart.nullFailed(I[84], 151, 28, "stream");
        return new (__t$_BoundSinkStreamOfS$T()).new(stream, this[_sinkMapper$0]);
      }
    }
    (_StreamSinkTransformer.new = function(_sinkMapper) {
      if (_sinkMapper == null) dart.nullFailed(I[84], 149, 37, "_sinkMapper");
      this[_sinkMapper$] = _sinkMapper;
      this.$ti = this.$ti || __t$_StreamSinkTransformerOfS$T();
      dart.global.Object.getPrototypeOf(_StreamSinkTransformer).new.call(this);
      ;
    }).prototype = _StreamSinkTransformer.prototype;
    dart.addRtiResources(_StreamSinkTransformer, ["async|_StreamSinkTransformer"]);
    dart.setMethodSignature(_StreamSinkTransformer, () => dart.global.Object.setPrototypeOf({bind: __t$ObjectNToStreamOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamSinkTransformer))));
    dart.setLibraryUri(_StreamSinkTransformer, I[39]);
    dart.setFieldSignature(_StreamSinkTransformer, () => dart.global.Object.setPrototypeOf({[_sinkMapper$0]: {type: __t$EventSinkOfTToEventSinkOfS(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_StreamSinkTransformer))));
    return _StreamSinkTransformer;
  });
  async._StreamSinkTransformer = async._StreamSinkTransformer$();
  async._BoundSinkStream$ = dart.generic((S, T) => {
    var __t$_BoundSinkStreamOfS$T = () => (__t$_BoundSinkStreamOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_BoundSinkStream<1,2>")))();
    var __t$EventSinkOfTToEventSinkOfS = () => (__t$EventSinkOfTToEventSinkOfS = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|EventSink<1>(async|EventSink<2>)")))();
    var __t$StreamOfS = () => (__t$StreamOfS = dart.constFn(S[_eval]("async|Stream<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$_SinkTransformerStreamSubscriptionOfS$T = () => (__t$_SinkTransformerStreamSubscriptionOfS$T = dart.constFn(async._SinkTransformerStreamSubscription$(S, T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _BoundSinkStream extends __t$StreamOfT() {
      get isBroadcast() {
        return this[_stream$].isBroadcast;
      }
      static ['_#new#tearOff'](S, T, _stream, _sinkMapper) {
        if (_stream == null) dart.nullFailed(I[84], 166, 25, "_stream");
        if (_sinkMapper == null) dart.nullFailed(I[84], 166, 39, "_sinkMapper");
        return new (async._BoundSinkStream$(S, T)).new(_stream, _sinkMapper);
      }
      listen(onData, opts) {
        let t$36109;
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        let subscription = new (__t$_SinkTransformerStreamSubscriptionOfS$T()).new(this[_stream$], this[_sinkMapper$0], onData, onError, onDone, (t$36109 = cancelOnError, t$36109 == null ? false : t$36109));
        return subscription;
      }
    }
    (_BoundSinkStream.new = function(_stream, _sinkMapper) {
      if (_stream == null) dart.nullFailed(I[84], 166, 25, "_stream");
      if (_sinkMapper == null) dart.nullFailed(I[84], 166, 39, "_sinkMapper");
      this[_stream$] = _stream;
      this[_sinkMapper$0] = _sinkMapper;
      this.$ti = this.$ti || __t$_BoundSinkStreamOfS$T();
      dart.global.Object.getPrototypeOf(_BoundSinkStream).new.call(this);
      ;
    }).prototype = _BoundSinkStream.prototype;
    dart.addRtiResources(_BoundSinkStream, ["async|_BoundSinkStream"]);
    dart.setMethodSignature(_BoundSinkStream, () => dart.global.Object.setPrototypeOf({listen: __t$Fn__ToStreamSubscriptionOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(_BoundSinkStream))));
    dart.setLibraryUri(_BoundSinkStream, I[39]);
    dart.setFieldSignature(_BoundSinkStream, () => dart.global.Object.setPrototypeOf({
      [_sinkMapper$0]: {type: __t$EventSinkOfTToEventSinkOfS(), isConst: false, isFinal: true},
      [_stream$]: {type: __t$StreamOfS(), isConst: false, isFinal: true, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_BoundSinkStream))));
    return _BoundSinkStream;
  });
  async._BoundSinkStream = async._BoundSinkStream$();
  async._HandlerEventSink$ = dart.generic((S, T) => {
    var __t$_HandlerEventSinkOfS$T = () => (__t$_HandlerEventSinkOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_HandlerEventSink<1,2>")))();
    var __t$SAndEventSinkOfTToNvoid = () => (__t$SAndEventSinkOfTToNvoid = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("~(1,async|EventSink<2>)?")))();
    var __t$ObjectAndStackTraceAndEventSinkOfTToNvoid = () => (__t$ObjectAndStackTraceAndEventSinkOfTToNvoid = dart.constFn(T[_eval]("~(core|Object,core|StackTrace,async|EventSink<0>)?")))();
    var __t$EventSinkOfTToNvoid = () => (__t$EventSinkOfTToNvoid = dart.constFn(T[_eval]("~(async|EventSink<0>)?")))();
    var __t$EventSinkNOfT = () => (__t$EventSinkNOfT = dart.constFn(T[_eval]("async|EventSink<0>?")))();
    class _HandlerEventSink extends core.Object {
      static ['_#new#tearOff'](S, T, _handleData, _handleError, _handleDone, _sink) {
        if (_sink == null) dart.nullFailed(I[84], 200, 25, "_sink");
        return new (async._HandlerEventSink$(S, T)).new(_handleData, _handleError, _handleDone, _sink);
      }
      add(data) {
        S[_as](data);
        let sink = this[_sink$];
        if (sink == null) {
          dart.throw(new core.StateError.new("Sink is closed"));
        }
        let handleData = this[_handleData$];
        if (handleData != null) {
          handleData(data, sink);
        } else {
          sink.add(T[_as](data));
        }
      }
      addError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[84], 215, 24, "error");
        _internal.checkNotNullable(T$.Object(), error, "error");
        let sink = this[_sink$];
        if (sink == null) {
          dart.throw(new core.StateError.new("Sink is closed"));
        }
        let handleError = this[_handleError$];
        stackTrace == null ? stackTrace = async.AsyncError.defaultStackTrace(error) : null;
        if (handleError != null) {
          handleError(error, stackTrace, sink);
        } else {
          sink.addError(error, stackTrace);
        }
      }
      close() {
        let sink = this[_sink$];
        if (sink == null) return;
        this[_sink$] = null;
        let handleDone = this[_handleDone$];
        if (handleDone != null) {
          handleDone(sink);
        } else {
          sink.close();
        }
      }
    }
    (_HandlerEventSink.new = function(_handleData, _handleError, _handleDone, _sink) {
      if (_sink == null) dart.nullFailed(I[84], 200, 25, "_sink");
      this[_handleData$] = _handleData;
      this[_handleError$] = _handleError;
      this[_handleDone$] = _handleDone;
      this[_sink$] = _sink;
      this.$ti = this.$ti || __t$_HandlerEventSinkOfS$T();
      ;
    }).prototype = _HandlerEventSink.prototype;
    dart.addRtiResources(_HandlerEventSink, ["async|_HandlerEventSink", "async|EventSink", "core|Sink"]);
    dart.setMethodSignature(_HandlerEventSink, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      addError: T$1.ObjectAndStackTraceNTovoid(),
      close: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_HandlerEventSink))));
    dart.setLibraryUri(_HandlerEventSink, I[39]);
    dart.setFieldSignature(_HandlerEventSink, () => dart.global.Object.setPrototypeOf({
      [_handleData$]: {type: __t$SAndEventSinkOfTToNvoid(), isConst: false, isFinal: true},
      [_handleError$]: {type: __t$ObjectAndStackTraceAndEventSinkOfTToNvoid(), isConst: false, isFinal: true},
      [_handleDone$]: {type: __t$EventSinkOfTToNvoid(), isConst: false, isFinal: true},
      [_sink$]: {type: __t$EventSinkNOfT(), isConst: false, isFinal: false, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_HandlerEventSink))));
    return _HandlerEventSink;
  });
  async._HandlerEventSink = async._HandlerEventSink$();
  async._StreamHandlerTransformer$ = dart.generic((S, T) => {
    var __t$_StreamHandlerTransformerOfS$T = () => (__t$_StreamHandlerTransformerOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_StreamHandlerTransformer<1,2>")))();
    var __t$EventSinkOfTTo_HandlerEventSinkOfS$T = () => (__t$EventSinkOfTTo_HandlerEventSinkOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_HandlerEventSink<1,2>(async|EventSink<2>)")))();
    var __t$StreamOfS = () => (__t$StreamOfS = dart.constFn(S[_eval]("async|Stream<0>")))();
    var __t$_HandlerEventSinkOfS$T = () => (__t$_HandlerEventSinkOfS$T = dart.constFn(async._HandlerEventSink$(S, T)))();
    var __t$_StreamSinkTransformerOfS$T = () => (__t$_StreamSinkTransformerOfS$T = dart.constFn(async._StreamSinkTransformer$(S, T)))();
    class _StreamHandlerTransformer extends __t$_StreamSinkTransformerOfS$T() {
      static ['_#new#tearOff'](S, T, opts) {
        let handleData = opts && 'handleData' in opts ? opts.handleData : null;
        let handleError = opts && 'handleError' in opts ? opts.handleError : null;
        let handleDone = opts && 'handleDone' in opts ? opts.handleDone : null;
        return new (async._StreamHandlerTransformer$(S, T)).new({handleData: handleData, handleError: handleError, handleDone: handleDone});
      }
      bind(stream) {
        __t$StreamOfS()[_as](stream);
        if (stream == null) dart.nullFailed(I[84], 256, 28, "stream");
        return super.bind(stream);
      }
    }
    (_StreamHandlerTransformer.new = function(opts) {
      let handleData = opts && 'handleData' in opts ? opts.handleData : null;
      let handleError = opts && 'handleError' in opts ? opts.handleError : null;
      let handleDone = opts && 'handleDone' in opts ? opts.handleDone : null;
      this.$ti = this.$ti || __t$_StreamHandlerTransformerOfS$T();
      dart.global.Object.getPrototypeOf(_StreamHandlerTransformer).new.call(this, dart.fn(outputSink => {
        if (outputSink == null) dart.nullFailed(I[84], 251, 29, "outputSink");
        return new (__t$_HandlerEventSinkOfS$T()).new(handleData, handleError, handleDone, outputSink);
      }, __t$EventSinkOfTTo_HandlerEventSinkOfS$T()));
      ;
    }).prototype = _StreamHandlerTransformer.prototype;
    dart.addRtiResources(_StreamHandlerTransformer, ["async|_StreamHandlerTransformer"]);
    dart.setLibraryUri(_StreamHandlerTransformer, I[39]);
    return _StreamHandlerTransformer;
  });
  async._StreamHandlerTransformer = async._StreamHandlerTransformer$();
  var _bind$ = dart.privateName(async, "_bind");
  async._StreamBindTransformer$ = dart.generic((S, T) => {
    var __t$_StreamBindTransformerOfS$T = () => (__t$_StreamBindTransformerOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_StreamBindTransformer<1,2>")))();
    var __t$StreamOfS = () => (__t$StreamOfS = dart.constFn(S[_eval]("async|Stream<0>")))();
    var __t$StreamOfSToStreamOfT = () => (__t$StreamOfSToStreamOfT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|Stream<2>(async|Stream<1>)")))();
    var __t$ObjectNToStreamOfT = () => (__t$ObjectNToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|Object?)")))();
    var __t$StreamTransformerBaseOfS$T = () => (__t$StreamTransformerBaseOfS$T = dart.constFn(async.StreamTransformerBase$(S, T)))();
    class _StreamBindTransformer extends __t$StreamTransformerBaseOfS$T() {
      static ['_#new#tearOff'](S, T, _bind) {
        if (_bind == null) dart.nullFailed(I[84], 264, 31, "_bind");
        return new (async._StreamBindTransformer$(S, T)).new(_bind);
      }
      bind(stream) {
        let t$36109;
        __t$StreamOfS()[_as](stream);
        if (stream == null) dart.nullFailed(I[84], 266, 28, "stream");
        t$36109 = stream;
        return this[_bind$](t$36109);
      }
    }
    (_StreamBindTransformer.new = function(_bind) {
      if (_bind == null) dart.nullFailed(I[84], 264, 31, "_bind");
      this[_bind$] = _bind;
      this.$ti = this.$ti || __t$_StreamBindTransformerOfS$T();
      dart.global.Object.getPrototypeOf(_StreamBindTransformer).new.call(this);
      ;
    }).prototype = _StreamBindTransformer.prototype;
    dart.addRtiResources(_StreamBindTransformer, ["async|_StreamBindTransformer"]);
    dart.setMethodSignature(_StreamBindTransformer, () => dart.global.Object.setPrototypeOf({bind: __t$ObjectNToStreamOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamBindTransformer))));
    dart.setLibraryUri(_StreamBindTransformer, I[39]);
    dart.setFieldSignature(_StreamBindTransformer, () => dart.global.Object.setPrototypeOf({[_bind$]: {type: __t$StreamOfSToStreamOfT(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_StreamBindTransformer))));
    return _StreamBindTransformer;
  });
  async._StreamBindTransformer = async._StreamBindTransformer$();
  var _onListen$0 = dart.privateName(async, "_StreamSubscriptionTransformer._onListen");
  async._StreamSubscriptionTransformer$ = dart.generic((S, T) => {
    var __t$_StreamSubscriptionTransformerOfS$T = () => (__t$_StreamSubscriptionTransformerOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_StreamSubscriptionTransformer<1,2>")))();
    var __t$StreamOfS = () => (__t$StreamOfS = dart.constFn(S[_eval]("async|Stream<0>")))();
    var __t$StreamOfSAndboolToStreamSubscriptionOfT = () => (__t$StreamOfSAndboolToStreamSubscriptionOfT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|StreamSubscription<2>(async|Stream<1>,core|bool)")))();
    var __t$ObjectNToStreamOfT = () => (__t$ObjectNToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|Object?)")))();
    var __t$_BoundSubscriptionStreamOfS$T = () => (__t$_BoundSubscriptionStreamOfS$T = dart.constFn(async._BoundSubscriptionStream$(S, T)))();
    var __t$StreamTransformerBaseOfS$T = () => (__t$StreamTransformerBaseOfS$T = dart.constFn(async.StreamTransformerBase$(S, T)))();
    class _StreamSubscriptionTransformer extends __t$StreamTransformerBaseOfS$T() {
      get [_onListen$]() {
        return this[_onListen$0];
      }
      set [_onListen$](value) {
        super[_onListen$] = value;
      }
      static ['_#new#tearOff'](S, T, _onListen) {
        if (_onListen == null) dart.nullFailed(I[84], 286, 45, "_onListen");
        return new (async._StreamSubscriptionTransformer$(S, T)).new(_onListen);
      }
      bind(stream) {
        __t$StreamOfS()[_as](stream);
        if (stream == null) dart.nullFailed(I[84], 288, 28, "stream");
        return new (__t$_BoundSubscriptionStreamOfS$T()).new(stream, this[_onListen$]);
      }
    }
    (_StreamSubscriptionTransformer.new = function(_onListen) {
      if (_onListen == null) dart.nullFailed(I[84], 286, 45, "_onListen");
      this[_onListen$0] = _onListen;
      this.$ti = this.$ti || __t$_StreamSubscriptionTransformerOfS$T();
      dart.global.Object.getPrototypeOf(_StreamSubscriptionTransformer).new.call(this);
      ;
    }).prototype = _StreamSubscriptionTransformer.prototype;
    dart.addRtiResources(_StreamSubscriptionTransformer, ["async|_StreamSubscriptionTransformer"]);
    dart.setMethodSignature(_StreamSubscriptionTransformer, () => dart.global.Object.setPrototypeOf({bind: __t$ObjectNToStreamOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamSubscriptionTransformer))));
    dart.setLibraryUri(_StreamSubscriptionTransformer, I[39]);
    dart.setFieldSignature(_StreamSubscriptionTransformer, () => dart.global.Object.setPrototypeOf({[_onListen$]: {type: __t$StreamOfSAndboolToStreamSubscriptionOfT(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_StreamSubscriptionTransformer))));
    return _StreamSubscriptionTransformer;
  });
  async._StreamSubscriptionTransformer = async._StreamSubscriptionTransformer$();
  async._BoundSubscriptionStream$ = dart.generic((S, T) => {
    var __t$_BoundSubscriptionStreamOfS$T = () => (__t$_BoundSubscriptionStreamOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|_BoundSubscriptionStream<1,2>")))();
    var __t$StreamOfSAndboolToStreamSubscriptionOfT = () => (__t$StreamOfSAndboolToStreamSubscriptionOfT = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("async|StreamSubscription<2>(async|Stream<1>,core|bool)")))();
    var __t$StreamOfS = () => (__t$StreamOfS = dart.constFn(S[_eval]("async|Stream<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _BoundSubscriptionStream extends __t$StreamOfT() {
      get isBroadcast() {
        return this[_stream$].isBroadcast;
      }
      static ['_#new#tearOff'](S, T, _stream, _onListen) {
        if (_stream == null) dart.nullFailed(I[84], 303, 33, "_stream");
        if (_onListen == null) dart.nullFailed(I[84], 303, 47, "_onListen");
        return new (async._BoundSubscriptionStream$(S, T)).new(_stream, _onListen);
      }
      listen(onData, opts) {
        let t$36109, t$36110, t$36109$;
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        let result = (t$36109$ = this[_stream$], t$36110 = (t$36109 = cancelOnError, t$36109 == null ? false : t$36109), this[_onListen$](t$36109$, t$36110));
        result.onData(onData);
        result.onError(onError);
        result.onDone(onDone);
        return result;
      }
    }
    (_BoundSubscriptionStream.new = function(_stream, _onListen) {
      if (_stream == null) dart.nullFailed(I[84], 303, 33, "_stream");
      if (_onListen == null) dart.nullFailed(I[84], 303, 47, "_onListen");
      this[_stream$] = _stream;
      this[_onListen$] = _onListen;
      this.$ti = this.$ti || __t$_BoundSubscriptionStreamOfS$T();
      dart.global.Object.getPrototypeOf(_BoundSubscriptionStream).new.call(this);
      ;
    }).prototype = _BoundSubscriptionStream.prototype;
    dart.addRtiResources(_BoundSubscriptionStream, ["async|_BoundSubscriptionStream"]);
    dart.setMethodSignature(_BoundSubscriptionStream, () => dart.global.Object.setPrototypeOf({listen: __t$Fn__ToStreamSubscriptionOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(_BoundSubscriptionStream))));
    dart.setLibraryUri(_BoundSubscriptionStream, I[39]);
    dart.setFieldSignature(_BoundSubscriptionStream, () => dart.global.Object.setPrototypeOf({
      [_onListen$]: {type: __t$StreamOfSAndboolToStreamSubscriptionOfT(), isConst: false, isFinal: true},
      [_stream$]: {type: __t$StreamOfS(), isConst: false, isFinal: true, libraryUri: I[39]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_BoundSubscriptionStream))));
    return _BoundSubscriptionStream;
  });
  async._BoundSubscriptionStream = async._BoundSubscriptionStream$();
  async.Timer = class Timer extends core.Object {
    static new(duration, callback) {
      if (duration == null) dart.nullFailed(I[85], 42, 26, "duration");
      if (callback == null) dart.nullFailed(I[85], 42, 52, "callback");
      if (dart.equals(async.Zone.current, async.Zone.root)) {
        return async.Zone.current.createTimer(duration, callback);
      }
      return async.Zone.current.createTimer(duration, async.Zone.current.bindCallbackGuarded(callback));
    }
    static ['_#new#tearOff'](duration, callback) {
      if (duration == null) dart.nullFailed(I[85], 42, 26, "duration");
      if (callback == null) dart.nullFailed(I[85], 42, 52, "callback");
      return async.Timer.new(duration, callback);
    }
    static periodic(duration, callback) {
      if (duration == null) dart.nullFailed(I[85], 86, 35, "duration");
      if (callback == null) dart.nullFailed(I[85], 86, 50, "callback");
      if (dart.equals(async.Zone.current, async.Zone.root)) {
        return async.Zone.current.createPeriodicTimer(duration, callback);
      }
      let boundCallback = async.Zone.current.bindUnaryCallbackGuarded(T$1.Timer(), callback);
      return async.Zone.current.createPeriodicTimer(duration, boundCallback);
    }
    static ['_#periodic#tearOff'](duration, callback) {
      if (duration == null) dart.nullFailed(I[85], 86, 35, "duration");
      if (callback == null) dart.nullFailed(I[85], 86, 50, "callback");
      return async.Timer.periodic(duration, callback);
    }
    static run(callback) {
      if (callback == null) dart.nullFailed(I[85], 104, 35, "callback");
      async.Timer.new(core.Duration.zero, callback);
    }
    static _createTimer(duration, callback) {
      if (duration == null) dart.nullFailed(I[73], 189, 38, "duration");
      if (callback == null) dart.nullFailed(I[73], 189, 64, "callback");
      let milliseconds = duration.inMilliseconds;
      if (dart.notNull(milliseconds) < 0) milliseconds = 0;
      return new _isolate_helper.TimerImpl.new(milliseconds, callback);
    }
    static _createPeriodicTimer(duration, callback) {
      if (duration == null) dart.nullFailed(I[73], 197, 16, "duration");
      if (callback == null) dart.nullFailed(I[73], 197, 31, "callback");
      let milliseconds = duration.inMilliseconds;
      if (dart.notNull(milliseconds) < 0) milliseconds = 0;
      return new _isolate_helper.TimerImpl.periodic(milliseconds, callback);
    }
  };
  (async.Timer[dart.mixinNew] = function() {
  }).prototype = async.Timer.prototype;
  dart.addRtiResources(async.Timer, ["async|Timer"]);
  dart.setStaticMethodSignature(async.Timer, () => ['new', 'periodic', 'run', '_createTimer', '_createPeriodicTimer']);
  dart.setLibraryUri(async.Timer, I[39]);
  var zone$ = dart.privateName(async, "_ZoneFunction.zone");
  var $function$ = dart.privateName(async, "_ZoneFunction.function");
  async._ZoneFunction$ = dart.generic(T => {
    var __t$_ZoneFunctionOfT = () => (__t$_ZoneFunctionOfT = dart.constFn(T[_eval]("async|_ZoneFunction<0>")))();
    class _ZoneFunction extends core.Object {
      get zone() {
        return this[zone$];
      }
      set zone(value) {
        super.zone = value;
      }
      get function() {
        return this[$function$];
      }
      set function(value) {
        super.function = value;
      }
      static ['_#new#tearOff'](T, zone, $function) {
        if (zone == null) dart.nullFailed(I[86], 303, 28, "zone");
        if ($function == null) dart.nullFailed(I[86], 303, 39, "function");
        return new (async._ZoneFunction$(T)).new(zone, $function);
      }
    }
    (_ZoneFunction.new = function(zone, $function) {
      if (zone == null) dart.nullFailed(I[86], 303, 28, "zone");
      if ($function == null) dart.nullFailed(I[86], 303, 39, "function");
      this[zone$] = zone;
      this[$function$] = $function;
      this.$ti = this.$ti || __t$_ZoneFunctionOfT();
      ;
    }).prototype = _ZoneFunction.prototype;
    dart.addRtiResources(_ZoneFunction, ["async|_ZoneFunction"]);
    dart.setLibraryUri(_ZoneFunction, I[39]);
    dart.setFieldSignature(_ZoneFunction, () => dart.global.Object.setPrototypeOf({
      zone: {type: T$1._Zone(), isConst: false, isFinal: true, libraryUri: I[39]},
      function: {type: T, isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_ZoneFunction))));
    return _ZoneFunction;
  });
  async._ZoneFunction = async._ZoneFunction$();
  async.ZoneSpecification = class ZoneSpecification extends core.Object {
    static ['_#new#tearOff'](opts) {
      let handleUncaughtError = opts && 'handleUncaughtError' in opts ? opts.handleUncaughtError : null;
      let run = opts && 'run' in opts ? opts.run : null;
      let runUnary = opts && 'runUnary' in opts ? opts.runUnary : null;
      let runBinary = opts && 'runBinary' in opts ? opts.runBinary : null;
      let registerCallback = opts && 'registerCallback' in opts ? opts.registerCallback : null;
      let registerUnaryCallback = opts && 'registerUnaryCallback' in opts ? opts.registerUnaryCallback : null;
      let registerBinaryCallback = opts && 'registerBinaryCallback' in opts ? opts.registerBinaryCallback : null;
      let errorCallback = opts && 'errorCallback' in opts ? opts.errorCallback : null;
      let scheduleMicrotask = opts && 'scheduleMicrotask' in opts ? opts.scheduleMicrotask : null;
      let createTimer = opts && 'createTimer' in opts ? opts.createTimer : null;
      let createPeriodicTimer = opts && 'createPeriodicTimer' in opts ? opts.createPeriodicTimer : null;
      let print = opts && 'print' in opts ? opts.print : null;
      let fork = opts && 'fork' in opts ? opts.fork : null;
      return new async._ZoneSpecification.new({handleUncaughtError: handleUncaughtError, run: run, runUnary: runUnary, runBinary: runBinary, registerCallback: registerCallback, registerUnaryCallback: registerUnaryCallback, registerBinaryCallback: registerBinaryCallback, errorCallback: errorCallback, scheduleMicrotask: scheduleMicrotask, createTimer: createTimer, createPeriodicTimer: createPeriodicTimer, print: print, fork: fork});
    }
    static from(other, opts) {
      let t$36109, t$36109$, t$36109$0, t$36109$1, t$36109$2, t$36109$3, t$36109$4, t$36109$5, t$36109$6, t$36109$7, t$36109$8, t$36109$9, t$36109$10;
      if (other == null) dart.nullFailed(I[86], 354, 52, "other");
      let handleUncaughtError = opts && 'handleUncaughtError' in opts ? opts.handleUncaughtError : null;
      let run = opts && 'run' in opts ? opts.run : null;
      let runUnary = opts && 'runUnary' in opts ? opts.runUnary : null;
      let runBinary = opts && 'runBinary' in opts ? opts.runBinary : null;
      let registerCallback = opts && 'registerCallback' in opts ? opts.registerCallback : null;
      let registerUnaryCallback = opts && 'registerUnaryCallback' in opts ? opts.registerUnaryCallback : null;
      let registerBinaryCallback = opts && 'registerBinaryCallback' in opts ? opts.registerBinaryCallback : null;
      let errorCallback = opts && 'errorCallback' in opts ? opts.errorCallback : null;
      let scheduleMicrotask = opts && 'scheduleMicrotask' in opts ? opts.scheduleMicrotask : null;
      let createTimer = opts && 'createTimer' in opts ? opts.createTimer : null;
      let createPeriodicTimer = opts && 'createPeriodicTimer' in opts ? opts.createPeriodicTimer : null;
      let print = opts && 'print' in opts ? opts.print : null;
      let fork = opts && 'fork' in opts ? opts.fork : null;
      return new async._ZoneSpecification.new({handleUncaughtError: (t$36109 = handleUncaughtError, t$36109 == null ? other.handleUncaughtError : t$36109), run: (t$36109$ = run, t$36109$ == null ? other.run : t$36109$), runUnary: (t$36109$0 = runUnary, t$36109$0 == null ? other.runUnary : t$36109$0), runBinary: (t$36109$1 = runBinary, t$36109$1 == null ? other.runBinary : t$36109$1), registerCallback: (t$36109$2 = registerCallback, t$36109$2 == null ? other.registerCallback : t$36109$2), registerUnaryCallback: (t$36109$3 = registerUnaryCallback, t$36109$3 == null ? other.registerUnaryCallback : t$36109$3), registerBinaryCallback: (t$36109$4 = registerBinaryCallback, t$36109$4 == null ? other.registerBinaryCallback : t$36109$4), errorCallback: (t$36109$5 = errorCallback, t$36109$5 == null ? other.errorCallback : t$36109$5), scheduleMicrotask: (t$36109$6 = scheduleMicrotask, t$36109$6 == null ? other.scheduleMicrotask : t$36109$6), createTimer: (t$36109$7 = createTimer, t$36109$7 == null ? other.createTimer : t$36109$7), createPeriodicTimer: (t$36109$8 = createPeriodicTimer, t$36109$8 == null ? other.createPeriodicTimer : t$36109$8), print: (t$36109$9 = print, t$36109$9 == null ? other.print : t$36109$9), fork: (t$36109$10 = fork, t$36109$10 == null ? other.fork : t$36109$10)});
    }
    static ['_#from#tearOff'](other, opts) {
      if (other == null) dart.nullFailed(I[86], 354, 52, "other");
      let handleUncaughtError = opts && 'handleUncaughtError' in opts ? opts.handleUncaughtError : null;
      let run = opts && 'run' in opts ? opts.run : null;
      let runUnary = opts && 'runUnary' in opts ? opts.runUnary : null;
      let runBinary = opts && 'runBinary' in opts ? opts.runBinary : null;
      let registerCallback = opts && 'registerCallback' in opts ? opts.registerCallback : null;
      let registerUnaryCallback = opts && 'registerUnaryCallback' in opts ? opts.registerUnaryCallback : null;
      let registerBinaryCallback = opts && 'registerBinaryCallback' in opts ? opts.registerBinaryCallback : null;
      let errorCallback = opts && 'errorCallback' in opts ? opts.errorCallback : null;
      let scheduleMicrotask = opts && 'scheduleMicrotask' in opts ? opts.scheduleMicrotask : null;
      let createTimer = opts && 'createTimer' in opts ? opts.createTimer : null;
      let createPeriodicTimer = opts && 'createPeriodicTimer' in opts ? opts.createPeriodicTimer : null;
      let print = opts && 'print' in opts ? opts.print : null;
      let fork = opts && 'fork' in opts ? opts.fork : null;
      return async.ZoneSpecification.from(other, {handleUncaughtError: handleUncaughtError, run: run, runUnary: runUnary, runBinary: runBinary, registerCallback: registerCallback, registerUnaryCallback: registerUnaryCallback, registerBinaryCallback: registerBinaryCallback, errorCallback: errorCallback, scheduleMicrotask: scheduleMicrotask, createTimer: createTimer, createPeriodicTimer: createPeriodicTimer, print: print, fork: fork});
    }
  };
  (async.ZoneSpecification[dart.mixinNew] = function() {
  }).prototype = async.ZoneSpecification.prototype;
  dart.addRtiResources(async.ZoneSpecification, ["async|ZoneSpecification"]);
  dart.setStaticMethodSignature(async.ZoneSpecification, () => ['new', 'from']);
  dart.setLibraryUri(async.ZoneSpecification, I[39]);
  var handleUncaughtError$ = dart.privateName(async, "_ZoneSpecification.handleUncaughtError");
  var run$ = dart.privateName(async, "_ZoneSpecification.run");
  var runUnary$ = dart.privateName(async, "_ZoneSpecification.runUnary");
  var runBinary$ = dart.privateName(async, "_ZoneSpecification.runBinary");
  var registerCallback$ = dart.privateName(async, "_ZoneSpecification.registerCallback");
  var registerUnaryCallback$ = dart.privateName(async, "_ZoneSpecification.registerUnaryCallback");
  var registerBinaryCallback$ = dart.privateName(async, "_ZoneSpecification.registerBinaryCallback");
  var errorCallback$ = dart.privateName(async, "_ZoneSpecification.errorCallback");
  var scheduleMicrotask$ = dart.privateName(async, "_ZoneSpecification.scheduleMicrotask");
  var createTimer$ = dart.privateName(async, "_ZoneSpecification.createTimer");
  var createPeriodicTimer$ = dart.privateName(async, "_ZoneSpecification.createPeriodicTimer");
  var print$ = dart.privateName(async, "_ZoneSpecification.print");
  var fork$ = dart.privateName(async, "_ZoneSpecification.fork");
  async._ZoneSpecification = class _ZoneSpecification extends core.Object {
    get handleUncaughtError() {
      return this[handleUncaughtError$];
    }
    set handleUncaughtError(value) {
      super.handleUncaughtError = value;
    }
    get run() {
      return this[run$];
    }
    set run(value) {
      super.run = value;
    }
    get runUnary() {
      return this[runUnary$];
    }
    set runUnary(value) {
      super.runUnary = value;
    }
    get runBinary() {
      return this[runBinary$];
    }
    set runBinary(value) {
      super.runBinary = value;
    }
    get registerCallback() {
      return this[registerCallback$];
    }
    set registerCallback(value) {
      super.registerCallback = value;
    }
    get registerUnaryCallback() {
      return this[registerUnaryCallback$];
    }
    set registerUnaryCallback(value) {
      super.registerUnaryCallback = value;
    }
    get registerBinaryCallback() {
      return this[registerBinaryCallback$];
    }
    set registerBinaryCallback(value) {
      super.registerBinaryCallback = value;
    }
    get errorCallback() {
      return this[errorCallback$];
    }
    set errorCallback(value) {
      super.errorCallback = value;
    }
    get scheduleMicrotask() {
      return this[scheduleMicrotask$];
    }
    set scheduleMicrotask(value) {
      super.scheduleMicrotask = value;
    }
    get createTimer() {
      return this[createTimer$];
    }
    set createTimer(value) {
      super.createTimer = value;
    }
    get createPeriodicTimer() {
      return this[createPeriodicTimer$];
    }
    set createPeriodicTimer(value) {
      super.createPeriodicTimer = value;
    }
    get print() {
      return this[print$];
    }
    set print(value) {
      super.print = value;
    }
    get fork() {
      return this[fork$];
    }
    set fork(value) {
      super.fork = value;
    }
    static ['_#new#tearOff'](opts) {
      let handleUncaughtError = opts && 'handleUncaughtError' in opts ? opts.handleUncaughtError : null;
      let run = opts && 'run' in opts ? opts.run : null;
      let runUnary = opts && 'runUnary' in opts ? opts.runUnary : null;
      let runBinary = opts && 'runBinary' in opts ? opts.runBinary : null;
      let registerCallback = opts && 'registerCallback' in opts ? opts.registerCallback : null;
      let registerUnaryCallback = opts && 'registerUnaryCallback' in opts ? opts.registerUnaryCallback : null;
      let registerBinaryCallback = opts && 'registerBinaryCallback' in opts ? opts.registerBinaryCallback : null;
      let errorCallback = opts && 'errorCallback' in opts ? opts.errorCallback : null;
      let scheduleMicrotask = opts && 'scheduleMicrotask' in opts ? opts.scheduleMicrotask : null;
      let createTimer = opts && 'createTimer' in opts ? opts.createTimer : null;
      let createPeriodicTimer = opts && 'createPeriodicTimer' in opts ? opts.createPeriodicTimer : null;
      let print = opts && 'print' in opts ? opts.print : null;
      let fork = opts && 'fork' in opts ? opts.fork : null;
      return new async._ZoneSpecification.new({handleUncaughtError: handleUncaughtError, run: run, runUnary: runUnary, runBinary: runBinary, registerCallback: registerCallback, registerUnaryCallback: registerUnaryCallback, registerBinaryCallback: registerBinaryCallback, errorCallback: errorCallback, scheduleMicrotask: scheduleMicrotask, createTimer: createTimer, createPeriodicTimer: createPeriodicTimer, print: print, fork: fork});
    }
  };
  (async._ZoneSpecification.new = function(opts) {
    let handleUncaughtError = opts && 'handleUncaughtError' in opts ? opts.handleUncaughtError : null;
    let run = opts && 'run' in opts ? opts.run : null;
    let runUnary = opts && 'runUnary' in opts ? opts.runUnary : null;
    let runBinary = opts && 'runBinary' in opts ? opts.runBinary : null;
    let registerCallback = opts && 'registerCallback' in opts ? opts.registerCallback : null;
    let registerUnaryCallback = opts && 'registerUnaryCallback' in opts ? opts.registerUnaryCallback : null;
    let registerBinaryCallback = opts && 'registerBinaryCallback' in opts ? opts.registerBinaryCallback : null;
    let errorCallback = opts && 'errorCallback' in opts ? opts.errorCallback : null;
    let scheduleMicrotask = opts && 'scheduleMicrotask' in opts ? opts.scheduleMicrotask : null;
    let createTimer = opts && 'createTimer' in opts ? opts.createTimer : null;
    let createPeriodicTimer = opts && 'createPeriodicTimer' in opts ? opts.createPeriodicTimer : null;
    let print = opts && 'print' in opts ? opts.print : null;
    let fork = opts && 'fork' in opts ? opts.fork : null;
    this[handleUncaughtError$] = handleUncaughtError;
    this[run$] = run;
    this[runUnary$] = runUnary;
    this[runBinary$] = runBinary;
    this[registerCallback$] = registerCallback;
    this[registerUnaryCallback$] = registerUnaryCallback;
    this[registerBinaryCallback$] = registerBinaryCallback;
    this[errorCallback$] = errorCallback;
    this[scheduleMicrotask$] = scheduleMicrotask;
    this[createTimer$] = createTimer;
    this[createPeriodicTimer$] = createPeriodicTimer;
    this[print$] = print;
    this[fork$] = fork;
    ;
  }).prototype = async._ZoneSpecification.prototype;
  dart.addRtiResources(async._ZoneSpecification, ["async|_ZoneSpecification", "async|ZoneSpecification"]);
  dart.setLibraryUri(async._ZoneSpecification, I[39]);
  dart.setFieldSignature(async._ZoneSpecification, () => dart.global.Object.setPrototypeOf({
    handleUncaughtError: {type: T$1.ZoneAndZoneDelegateAndZone__ToNvoid(), isConst: false, isFinal: true},
    run: {type: T$1.ZoneAndZoneDelegateAndZone__ToNR(), isConst: false, isFinal: true},
    runUnary: {type: T$1.ZoneAndZoneDelegateAndZone__ToNR$1(), isConst: false, isFinal: true},
    runBinary: {type: T$1.ZoneAndZoneDelegateAndZone__ToNR$2(), isConst: false, isFinal: true},
    registerCallback: {type: T$1.ZoneAndZoneDelegateAndZone__ToNFn(), isConst: false, isFinal: true},
    registerUnaryCallback: {type: T$1.ZoneAndZoneDelegateAndZone__ToNFn$1(), isConst: false, isFinal: true},
    registerBinaryCallback: {type: T$1.ZoneAndZoneDelegateAndZone__ToNFn$2(), isConst: false, isFinal: true},
    errorCallback: {type: T$1.ZoneAndZoneDelegateAndZone__ToNAsyncErrorN(), isConst: false, isFinal: true},
    scheduleMicrotask: {type: T$1.ZoneAndZoneDelegateAndZone__ToNvoid$1(), isConst: false, isFinal: true},
    createTimer: {type: T$1.ZoneAndZoneDelegateAndZone__ToNTimer(), isConst: false, isFinal: true},
    createPeriodicTimer: {type: T$1.ZoneAndZoneDelegateAndZone__ToNTimer$1(), isConst: false, isFinal: true},
    print: {type: T$1.ZoneAndZoneDelegateAndZone__ToNvoid$2(), isConst: false, isFinal: true},
    fork: {type: T$1.ZoneAndZoneDelegateAndZone__ToNZone(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(async._ZoneSpecification))));
  async.ZoneDelegate = class ZoneDelegate extends core.Object {};
  (async.ZoneDelegate.new = function() {
    ;
  }).prototype = async.ZoneDelegate.prototype;
  dart.addRtiResources(async.ZoneDelegate, ["async|ZoneDelegate"]);
  dart.setLibraryUri(async.ZoneDelegate, I[39]);
  async.Zone = class Zone extends core.Object {
    static get current() {
      return async.Zone._current;
    }
    static _enter(zone) {
      if (zone == null) dart.nullFailed(I[86], 912, 29, "zone");
      if (!(zone != async.Zone._current)) dart.assertFailed(null, I[86], 913, 12, "!identical(zone, _current)");
      let previous = async.Zone._current;
      async.Zone._current = zone;
      return previous;
    }
    static _leave(previous) {
      if (previous == null) dart.nullFailed(I[86], 922, 28, "previous");
      if (!(previous != null)) dart.assertFailed(null, I[86], 923, 12, "previous != null");
      async.Zone._current = previous;
    }
  };
  (async.Zone.__ = function() {
    ;
  }).prototype = async.Zone.prototype;
  dart.addRtiResources(async.Zone, ["async|Zone"]);
  dart.setStaticMethodSignature(async.Zone, () => ['_enter', '_leave']);
  dart.setStaticGetterSignature(async.Zone, () => ['current']);
  dart.setLibraryUri(async.Zone, I[39]);
  dart.setStaticFieldSignature(async.Zone, () => ['root', '_current']);
  dart.defineLazy(async.Zone, {
    /*async.Zone.root*/get root() {
      return C[84] || CT.C84;
    },
    /*async.Zone._current*/get _current() {
      return async._rootZone;
    },
    set _current(value) {
      if (value == null) dart.nullFailed(I[86], 593, 16, "_current");
    }
  }, false);
  var _delegationTarget$ = dart.privateName(async, "_delegationTarget");
  var _processUncaughtError = dart.privateName(async, "_processUncaughtError");
  var _run = dart.privateName(async, "_run");
  var _parentDelegate = dart.privateName(async, "_parentDelegate");
  var _runUnary = dart.privateName(async, "_runUnary");
  var _runBinary = dart.privateName(async, "_runBinary");
  var _registerCallback = dart.privateName(async, "_registerCallback");
  var _registerUnaryCallback = dart.privateName(async, "_registerUnaryCallback");
  var _registerBinaryCallback = dart.privateName(async, "_registerBinaryCallback");
  var _errorCallback = dart.privateName(async, "_errorCallback");
  var _scheduleMicrotask = dart.privateName(async, "_scheduleMicrotask");
  var _createTimer = dart.privateName(async, "_createTimer");
  var _createPeriodicTimer = dart.privateName(async, "_createPeriodicTimer");
  var _print = dart.privateName(async, "_print");
  var _fork = dart.privateName(async, "_fork");
  async._ZoneDelegate = class _ZoneDelegate extends core.Object {
    static ['_#new#tearOff'](_delegationTarget) {
      if (_delegationTarget == null) dart.nullFailed(I[86], 942, 22, "_delegationTarget");
      return new async._ZoneDelegate.new(_delegationTarget);
    }
    handleUncaughtError(zone, error, stackTrace) {
      if (zone == null) dart.nullFailed(I[86], 944, 33, "zone");
      if (error == null) dart.nullFailed(I[86], 944, 46, "error");
      if (stackTrace == null) dart.nullFailed(I[86], 944, 64, "stackTrace");
      this[_delegationTarget$][_processUncaughtError](zone, error, stackTrace);
    }
    run(R, zone, f) {
      if (zone == null) dart.nullFailed(I[86], 948, 17, "zone");
      if (f == null) dart.nullFailed(I[86], 948, 25, "f");
      let implementation = this[_delegationTarget$][_run];
      let implZone = implementation.zone;
      let handler = implementation.function;
      return handler(R, implZone, implZone[_parentDelegate], zone, f);
    }
    runUnary(R, T, zone, f, arg) {
      if (zone == null) dart.nullFailed(I[86], 955, 25, "zone");
      if (f == null) dart.nullFailed(I[86], 955, 33, "f");
      let implementation = this[_delegationTarget$][_runUnary];
      let implZone = implementation.zone;
      let handler = implementation.function;
      return handler(R, T, implZone, implZone[_parentDelegate], zone, f, arg);
    }
    runBinary(R, T1, T2, zone, f, arg1, arg2) {
      if (zone == null) dart.nullFailed(I[86], 962, 31, "zone");
      if (f == null) dart.nullFailed(I[86], 962, 39, "f");
      let implementation = this[_delegationTarget$][_runBinary];
      let implZone = implementation.zone;
      let handler = implementation.function;
      return handler(R, T1, T2, implZone, implZone[_parentDelegate], zone, f, arg1, arg2);
    }
    registerCallback(R, zone, f) {
      if (zone == null) dart.nullFailed(I[86], 969, 44, "zone");
      if (f == null) dart.nullFailed(I[86], 969, 52, "f");
      let implementation = this[_delegationTarget$][_registerCallback];
      let implZone = implementation.zone;
      let handler = implementation.function;
      return handler(R, implZone, implZone[_parentDelegate], zone, f);
    }
    registerUnaryCallback(R, T, zone, f) {
      if (zone == null) dart.nullFailed(I[86], 976, 60, "zone");
      if (f == null) dart.nullFailed(I[86], 976, 68, "f");
      let implementation = this[_delegationTarget$][_registerUnaryCallback];
      let implZone = implementation.zone;
      let handler = implementation.function;
      return handler(R, T, implZone, implZone[_parentDelegate], zone, f);
    }
    registerBinaryCallback(R, T1, T2, zone, f) {
      if (zone == null) dart.nullFailed(I[86], 984, 12, "zone");
      if (f == null) dart.nullFailed(I[86], 984, 20, "f");
      let implementation = this[_delegationTarget$][_registerBinaryCallback];
      let implZone = implementation.zone;
      let handler = implementation.function;
      return handler(R, T1, T2, implZone, implZone[_parentDelegate], zone, f);
    }
    errorCallback(zone, error, stackTrace) {
      if (zone == null) dart.nullFailed(I[86], 991, 34, "zone");
      if (error == null) dart.nullFailed(I[86], 991, 47, "error");
      _internal.checkNotNullable(T$.Object(), error, "error");
      let implementation = this[_delegationTarget$][_errorCallback];
      let implZone = implementation.zone;
      if (implZone == async._rootZone) return null;
      let handler = implementation.function;
      return handler(implZone, implZone[_parentDelegate], zone, error, stackTrace);
    }
    scheduleMicrotask(zone, f) {
      if (zone == null) dart.nullFailed(I[86], 1000, 31, "zone");
      if (f == null) dart.nullFailed(I[86], 1000, 37, "f");
      let implementation = this[_delegationTarget$][_scheduleMicrotask];
      let implZone = implementation.zone;
      let handler = implementation.function;
      handler(implZone, implZone[_parentDelegate], zone, f);
    }
    createTimer(zone, duration, f) {
      if (zone == null) dart.nullFailed(I[86], 1007, 26, "zone");
      if (duration == null) dart.nullFailed(I[86], 1007, 41, "duration");
      if (f == null) dart.nullFailed(I[86], 1007, 56, "f");
      let implementation = this[_delegationTarget$][_createTimer];
      let implZone = implementation.zone;
      let handler = implementation.function;
      return handler(implZone, implZone[_parentDelegate], zone, duration, f);
    }
    createPeriodicTimer(zone, period, f) {
      if (zone == null) dart.nullFailed(I[86], 1014, 34, "zone");
      if (period == null) dart.nullFailed(I[86], 1014, 49, "period");
      if (f == null) dart.nullFailed(I[86], 1014, 62, "f");
      let implementation = this[_delegationTarget$][_createPeriodicTimer];
      let implZone = implementation.zone;
      let handler = implementation.function;
      return handler(implZone, implZone[_parentDelegate], zone, period, f);
    }
    print(zone, line) {
      if (zone == null) dart.nullFailed(I[86], 1021, 19, "zone");
      if (line == null) dart.nullFailed(I[86], 1021, 32, "line");
      let implementation = this[_delegationTarget$][_print];
      let implZone = implementation.zone;
      let handler = implementation.function;
      handler(implZone, implZone[_parentDelegate], zone, line);
    }
    fork(zone, specification, zoneValues) {
      if (zone == null) dart.nullFailed(I[86], 1028, 18, "zone");
      let implementation = this[_delegationTarget$][_fork];
      let implZone = implementation.zone;
      let handler = implementation.function;
      return handler(implZone, implZone[_parentDelegate], zone, specification, zoneValues);
    }
  };
  (async._ZoneDelegate.new = function(_delegationTarget) {
    if (_delegationTarget == null) dart.nullFailed(I[86], 942, 22, "_delegationTarget");
    this[_delegationTarget$] = _delegationTarget;
    ;
  }).prototype = async._ZoneDelegate.prototype;
  dart.addRtiResources(async._ZoneDelegate, ["async|_ZoneDelegate", "async|ZoneDelegate"]);
  dart.setMethodSignature(async._ZoneDelegate, () => dart.global.Object.setPrototypeOf({
    handleUncaughtError: T$1.ZoneAndObjectAndStackTraceTovoid(),
    run: T$1.ZoneAndFnToR(),
    runUnary: T$1.ZoneAndFnAndTToR(),
    runBinary: T$1.ZoneAndFnAndT1__ToR(),
    registerCallback: T$1.ZoneAndFnToFn$2(),
    registerUnaryCallback: T$1.ZoneAndFnToFn$3(),
    registerBinaryCallback: T$1.ZoneAndFnToFn$4(),
    errorCallback: T$1.ZoneAndObjectAndStackTraceNToAsyncErrorN(),
    scheduleMicrotask: T$1.ZoneAndFnTovoid(),
    createTimer: T$1.ZoneAndDurationAndFnToTimer(),
    createPeriodicTimer: T$1.ZoneAndDurationAndFnToTimer$1(),
    print: T$1.ZoneAndStringTovoid(),
    fork: T$1.ZoneAndZoneSpecificationNAndMapNOfObjectN$ObjectNToZone()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(async._ZoneDelegate))));
  dart.setMethodsDefaultTypeArgSignature(async._ZoneDelegate, () => dart.global.Object.setPrototypeOf({
    run: [T$.dynamic()],
    runUnary: [T$.dynamic(), T$.dynamic()],
    runBinary: [T$.dynamic(), T$.dynamic(), T$.dynamic()],
    registerCallback: [T$.dynamic()],
    registerUnaryCallback: [T$.dynamic(), T$.dynamic()],
    registerBinaryCallback: [T$.dynamic(), T$.dynamic(), T$.dynamic()]
  }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(async._ZoneDelegate))));
  dart.setLibraryUri(async._ZoneDelegate, I[39]);
  dart.setFieldSignature(async._ZoneDelegate, () => dart.global.Object.setPrototypeOf({[_delegationTarget$]: {type: T$1._Zone(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(async._ZoneDelegate))));
  var _handleUncaughtError = dart.privateName(async, "_handleUncaughtError");
  async._Zone = class _Zone extends core.Object {
    inSameErrorZone(otherZone) {
      if (otherZone == null) dart.nullFailed(I[86], 1063, 29, "otherZone");
      return this === otherZone || this.errorZone == otherZone.errorZone;
    }
    [_processUncaughtError](zone, error, stackTrace) {
      if (zone == null) dart.nullFailed(I[86], 1068, 35, "zone");
      if (error == null) dart.nullFailed(I[86], 1068, 48, "error");
      if (stackTrace == null) dart.nullFailed(I[86], 1068, 66, "stackTrace");
      let implementation = this[_handleUncaughtError];
      let implZone = implementation.zone;
      if (implZone == async._rootZone) {
        async._rootHandleError(error, stackTrace);
        return;
      }
      let handler = implementation.function;
      let parentDelegate = implZone[_parentDelegate];
      let parentZone = dart.nullCheck(implZone.parent);
      let currentZone = async.Zone._current;
      try {
        async.Zone._current = parentZone;
        handler(implZone, parentDelegate, zone, error, stackTrace);
        async.Zone._current = currentZone;
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          async.Zone._current = currentZone;
          parentZone[_processUncaughtError](implZone, e, core.identical(error, e) ? stackTrace : s);
        } else
          throw t$36$35e;
      }
    }
  };
  (async._Zone.new = function() {
    ;
  }).prototype = async._Zone.prototype;
  dart.addRtiResources(async._Zone, ["async|_Zone", "async|Zone"]);
  dart.setMethodSignature(async._Zone, () => dart.global.Object.setPrototypeOf({
    inSameErrorZone: T$1.ZoneTobool(),
    [_processUncaughtError]: T$1.ZoneAndObjectAndStackTraceTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(async._Zone))));
  dart.setLibraryUri(async._Zone, I[39]);
  var _run$ = dart.privateName(async, "_CustomZone._run");
  var _runUnary$ = dart.privateName(async, "_CustomZone._runUnary");
  var _runBinary$ = dart.privateName(async, "_CustomZone._runBinary");
  var _registerCallback$ = dart.privateName(async, "_CustomZone._registerCallback");
  var _registerUnaryCallback$ = dart.privateName(async, "_CustomZone._registerUnaryCallback");
  var _registerBinaryCallback$ = dart.privateName(async, "_CustomZone._registerBinaryCallback");
  var _errorCallback$ = dart.privateName(async, "_CustomZone._errorCallback");
  var _scheduleMicrotask$ = dart.privateName(async, "_CustomZone._scheduleMicrotask");
  var _createTimer$ = dart.privateName(async, "_CustomZone._createTimer");
  var _createPeriodicTimer$ = dart.privateName(async, "_CustomZone._createPeriodicTimer");
  var _print$ = dart.privateName(async, "_CustomZone._print");
  var _fork$ = dart.privateName(async, "_CustomZone._fork");
  var _handleUncaughtError$ = dart.privateName(async, "_CustomZone._handleUncaughtError");
  var parent$ = dart.privateName(async, "_CustomZone.parent");
  var _map$2 = dart.privateName(async, "_CustomZone._map");
  var _delegateCache = dart.privateName(async, "_delegateCache");
  var _map$3 = dart.privateName(async, "_map");
  var _delegate = dart.privateName(async, "_delegate");
  async._CustomZone = class _CustomZone extends async._Zone {
    get [_run]() {
      return this[_run$];
    }
    set [_run](value) {
      if (value == null) dart.nullFailed(I[86], 1096, 29, "_run");
      this[_run$] = value;
    }
    get [_runUnary]() {
      return this[_runUnary$];
    }
    set [_runUnary](value) {
      if (value == null) dart.nullFailed(I[86], 1097, 34, "_runUnary");
      this[_runUnary$] = value;
    }
    get [_runBinary]() {
      return this[_runBinary$];
    }
    set [_runBinary](value) {
      if (value == null) dart.nullFailed(I[86], 1098, 35, "_runBinary");
      this[_runBinary$] = value;
    }
    get [_registerCallback]() {
      return this[_registerCallback$];
    }
    set [_registerCallback](value) {
      if (value == null) dart.nullFailed(I[86], 1099, 42, "_registerCallback");
      this[_registerCallback$] = value;
    }
    get [_registerUnaryCallback]() {
      return this[_registerUnaryCallback$];
    }
    set [_registerUnaryCallback](value) {
      if (value == null) dart.nullFailed(I[86], 1100, 47, "_registerUnaryCallback");
      this[_registerUnaryCallback$] = value;
    }
    get [_registerBinaryCallback]() {
      return this[_registerBinaryCallback$];
    }
    set [_registerBinaryCallback](value) {
      if (value == null) dart.nullFailed(I[86], 1101, 48, "_registerBinaryCallback");
      this[_registerBinaryCallback$] = value;
    }
    get [_errorCallback]() {
      return this[_errorCallback$];
    }
    set [_errorCallback](value) {
      if (value == null) dart.nullFailed(I[86], 1102, 39, "_errorCallback");
      this[_errorCallback$] = value;
    }
    get [_scheduleMicrotask]() {
      return this[_scheduleMicrotask$];
    }
    set [_scheduleMicrotask](value) {
      if (value == null) dart.nullFailed(I[86], 1103, 43, "_scheduleMicrotask");
      this[_scheduleMicrotask$] = value;
    }
    get [_createTimer]() {
      return this[_createTimer$];
    }
    set [_createTimer](value) {
      if (value == null) dart.nullFailed(I[86], 1104, 37, "_createTimer");
      this[_createTimer$] = value;
    }
    get [_createPeriodicTimer]() {
      return this[_createPeriodicTimer$];
    }
    set [_createPeriodicTimer](value) {
      if (value == null) dart.nullFailed(I[86], 1105, 45, "_createPeriodicTimer");
      this[_createPeriodicTimer$] = value;
    }
    get [_print]() {
      return this[_print$];
    }
    set [_print](value) {
      if (value == null) dart.nullFailed(I[86], 1106, 31, "_print");
      this[_print$] = value;
    }
    get [_fork]() {
      return this[_fork$];
    }
    set [_fork](value) {
      if (value == null) dart.nullFailed(I[86], 1107, 30, "_fork");
      this[_fork$] = value;
    }
    get [_handleUncaughtError]() {
      return this[_handleUncaughtError$];
    }
    set [_handleUncaughtError](value) {
      if (value == null) dart.nullFailed(I[86], 1108, 45, "_handleUncaughtError");
      this[_handleUncaughtError$] = value;
    }
    get parent() {
      return this[parent$];
    }
    set parent(value) {
      super.parent = value;
    }
    get [_map$3]() {
      return this[_map$2];
    }
    set [_map$3](value) {
      super[_map$3] = value;
    }
    get [_delegate]() {
      let t$36110;
      t$36110 = this[_delegateCache];
      return t$36110 == null ? this[_delegateCache] = new async._ZoneDelegate.new(this) : t$36110;
    }
    get [_parentDelegate]() {
      return this.parent[_delegate];
    }
    static ['_#new#tearOff'](parent, specification, _map) {
      if (parent == null) dart.nullFailed(I[86], 1124, 20, "parent");
      if (specification == null) dart.nullFailed(I[86], 1124, 46, "specification");
      if (_map == null) dart.nullFailed(I[86], 1124, 66, "_map");
      return new async._CustomZone.new(parent, specification, _map);
    }
    get errorZone() {
      return this[_handleUncaughtError].zone;
    }
    runGuarded(f) {
      if (f == null) dart.nullFailed(I[86], 1207, 24, "f");
      try {
        this.run(T$.void(), f);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this.handleUncaughtError(e, s);
        } else
          throw t$36$35e;
      }
    }
    runUnaryGuarded(T, f, arg) {
      if (f == null) dart.nullFailed(I[86], 1215, 32, "f");
      try {
        this.runUnary(T$.void(), T, f, arg);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this.handleUncaughtError(e, s);
        } else
          throw t$36$35e;
      }
    }
    runBinaryGuarded(T1, T2, f, arg1, arg2) {
      if (f == null) dart.nullFailed(I[86], 1223, 38, "f");
      try {
        this.runBinary(T$.void(), T1, T2, f, arg1, arg2);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this.handleUncaughtError(e, s);
        } else
          throw t$36$35e;
      }
    }
    bindCallback(R, f) {
      if (f == null) dart.nullFailed(I[86], 1231, 37, "f");
      let registered = this.registerCallback(R, f);
      return dart.fn(() => this.run(R, registered), R[_eval]("0()"));
    }
    bindUnaryCallback(R, T, f) {
      if (f == null) dart.nullFailed(I[86], 1236, 53, "f");
      let registered = this.registerUnaryCallback(R, T, f);
      return dart.fn(arg => this.runUnary(R, T, registered, arg), R[_eval]("@<0>")[_bind](T)[_eval]("1(2)"));
    }
    bindBinaryCallback(R, T1, T2, f) {
      if (f == null) dart.nullFailed(I[86], 1242, 9, "f");
      let registered = this.registerBinaryCallback(R, T1, T2, f);
      return dart.fn((arg1, arg2) => this.runBinary(R, T1, T2, registered, arg1, arg2), R[_eval]("@<0>")[_bind](T1)[_bind](T2)[_eval]("1(2,3)"));
    }
    bindCallbackGuarded(f) {
      if (f == null) dart.nullFailed(I[86], 1247, 44, "f");
      let registered = this.registerCallback(T$.void(), f);
      return dart.fn(() => this.runGuarded(registered), T$.VoidTovoid());
    }
    bindUnaryCallbackGuarded(T, f) {
      if (f == null) dart.nullFailed(I[86], 1252, 53, "f");
      let registered = this.registerUnaryCallback(T$.void(), T, f);
      return dart.fn(arg => this.runUnaryGuarded(T, registered, arg), T[_eval]("~(0)"));
    }
    bindBinaryCallbackGuarded(T1, T2, f) {
      if (f == null) dart.nullFailed(I[86], 1258, 12, "f");
      let registered = this.registerBinaryCallback(T$.void(), T1, T2, f);
      return dart.fn((arg1, arg2) => this.runBinaryGuarded(T1, T2, registered, arg1, arg2), T1[_eval]("@<0>")[_bind](T2)[_eval]("~(1,2)"));
    }
    _get(key) {
      let result = this[_map$3][$_get](key);
      if (result != null || dart.test(this[_map$3][$containsKey](key))) return result;
      if (this.parent != null) {
        let value = this.parent._get(key);
        if (value != null) {
          this[_map$3][$_set](key, value);
        }
        return value;
      }
      if (!dart.equals(this, async._rootZone)) dart.assertFailed(null, I[86], 1278, 12, "this == _rootZone");
      return null;
    }
    handleUncaughtError(error, stackTrace) {
      if (error == null) dart.nullFailed(I[86], 1284, 35, "error");
      if (stackTrace == null) dart.nullFailed(I[86], 1284, 53, "stackTrace");
      this[_processUncaughtError](this, error, stackTrace);
    }
    fork(opts) {
      let specification = opts && 'specification' in opts ? opts.specification : null;
      let zoneValues = opts && 'zoneValues' in opts ? opts.zoneValues : null;
      let implementation = this[_fork];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(implementation.zone, parentDelegate, this, specification, zoneValues);
    }
    run(R, f) {
      if (f == null) dart.nullFailed(I[86], 1297, 14, "f");
      let implementation = this[_run];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(R, implementation.zone, parentDelegate, this, f);
    }
    runUnary(R, T, f, arg) {
      if (f == null) dart.nullFailed(I[86], 1304, 22, "f");
      let implementation = this[_runUnary];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(R, T, implementation.zone, parentDelegate, this, f, arg);
    }
    runBinary(R, T1, T2, f, arg1, arg2) {
      if (f == null) dart.nullFailed(I[86], 1311, 28, "f");
      let implementation = this[_runBinary];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(R, T1, T2, implementation.zone, parentDelegate, this, f, arg1, arg2);
    }
    registerCallback(R, callback) {
      if (callback == null) dart.nullFailed(I[86], 1318, 41, "callback");
      let implementation = this[_registerCallback];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(R, implementation.zone, parentDelegate, this, callback);
    }
    registerUnaryCallback(R, T, callback) {
      if (callback == null) dart.nullFailed(I[86], 1325, 57, "callback");
      let implementation = this[_registerUnaryCallback];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(R, T, implementation.zone, parentDelegate, this, callback);
    }
    registerBinaryCallback(R, T1, T2, callback) {
      if (callback == null) dart.nullFailed(I[86], 1333, 9, "callback");
      let implementation = this[_registerBinaryCallback];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(R, T1, T2, implementation.zone, parentDelegate, this, callback);
    }
    errorCallback(error, stackTrace) {
      if (error == null) dart.nullFailed(I[86], 1340, 36, "error");
      _internal.checkNotNullable(T$.Object(), error, "error");
      let implementation = this[_errorCallback];
      let implementationZone = implementation.zone;
      if (implementationZone == async._rootZone) return null;
      let parentDelegate = implementationZone[_parentDelegate];
      let handler = implementation.function;
      return handler(implementationZone, parentDelegate, this, error, stackTrace);
    }
    scheduleMicrotask(f) {
      if (f == null) dart.nullFailed(I[86], 1350, 31, "f");
      let implementation = this[_scheduleMicrotask];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(implementation.zone, parentDelegate, this, f);
    }
    createTimer(duration, f) {
      if (duration == null) dart.nullFailed(I[86], 1357, 30, "duration");
      if (f == null) dart.nullFailed(I[86], 1357, 45, "f");
      let implementation = this[_createTimer];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(implementation.zone, parentDelegate, this, duration, f);
    }
    createPeriodicTimer(duration, f) {
      if (duration == null) dart.nullFailed(I[86], 1364, 38, "duration");
      if (f == null) dart.nullFailed(I[86], 1364, 53, "f");
      let implementation = this[_createPeriodicTimer];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(implementation.zone, parentDelegate, this, duration, f);
    }
    print(line) {
      if (line == null) dart.nullFailed(I[86], 1371, 21, "line");
      let implementation = this[_print];
      let parentDelegate = implementation.zone[_parentDelegate];
      let handler = implementation.function;
      return handler(implementation.zone, parentDelegate, this, line);
    }
  };
  (async._CustomZone.new = function(parent, specification, _map) {
    if (parent == null) dart.nullFailed(I[86], 1124, 20, "parent");
    if (specification == null) dart.nullFailed(I[86], 1124, 46, "specification");
    if (_map == null) dart.nullFailed(I[86], 1124, 66, "_map");
    this[_delegateCache] = null;
    this[parent$] = parent;
    this[_map$2] = _map;
    this[_run$] = parent[_run];
    this[_runUnary$] = parent[_runUnary];
    this[_runBinary$] = parent[_runBinary];
    this[_registerCallback$] = parent[_registerCallback];
    this[_registerUnaryCallback$] = parent[_registerUnaryCallback];
    this[_registerBinaryCallback$] = parent[_registerBinaryCallback];
    this[_errorCallback$] = parent[_errorCallback];
    this[_scheduleMicrotask$] = parent[_scheduleMicrotask];
    this[_createTimer$] = parent[_createTimer];
    this[_createPeriodicTimer$] = parent[_createPeriodicTimer];
    this[_print$] = parent[_print];
    this[_fork$] = parent[_fork];
    this[_handleUncaughtError$] = parent[_handleUncaughtError];
    dart.global.Object.getPrototypeOf(async._CustomZone).new.call(this);
    let run = specification.run;
    if (run != null) {
      this[_run] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR()).new(this, run);
    }
    let runUnary = specification.runUnary;
    if (runUnary != null) {
      this[_runUnary] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$1()).new(this, runUnary);
    }
    let runBinary = specification.runBinary;
    if (runBinary != null) {
      this[_runBinary] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$2()).new(this, runBinary);
    }
    let registerCallback = specification.registerCallback;
    if (registerCallback != null) {
      this[_registerCallback] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn()).new(this, registerCallback);
    }
    let registerUnaryCallback = specification.registerUnaryCallback;
    if (registerUnaryCallback != null) {
      this[_registerUnaryCallback] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$1()).new(this, registerUnaryCallback);
    }
    let registerBinaryCallback = specification.registerBinaryCallback;
    if (registerBinaryCallback != null) {
      this[_registerBinaryCallback] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$2()).new(this, registerBinaryCallback);
    }
    let errorCallback = specification.errorCallback;
    if (errorCallback != null) {
      this[_errorCallback] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToAsyncErrorN()).new(this, errorCallback);
    }
    let scheduleMicrotask = specification.scheduleMicrotask;
    if (scheduleMicrotask != null) {
      this[_scheduleMicrotask] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid()).new(this, scheduleMicrotask);
    }
    let createTimer = specification.createTimer;
    if (createTimer != null) {
      this[_createTimer] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer()).new(this, createTimer);
    }
    let createPeriodicTimer = specification.createPeriodicTimer;
    if (createPeriodicTimer != null) {
      this[_createPeriodicTimer] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer$1()).new(this, createPeriodicTimer);
    }
    let print = specification.print;
    if (print != null) {
      this[_print] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$1()).new(this, print);
    }
    let fork = specification.fork;
    if (fork != null) {
      this[_fork] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToZone()).new(this, fork);
    }
    let handleUncaughtError = specification.handleUncaughtError;
    if (handleUncaughtError != null) {
      this[_handleUncaughtError] = new (G._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$2()).new(this, handleUncaughtError);
    }
  }).prototype = async._CustomZone.prototype;
  dart.addRtiResources(async._CustomZone, ["async|_CustomZone"]);
  dart.setMethodSignature(async._CustomZone, () => dart.global.Object.setPrototypeOf({
    runGuarded: T$1.FnTovoid$18(),
    runUnaryGuarded: T$1.FnAndTTovoid(),
    runBinaryGuarded: T$1.FnAndT1AndT2Tovoid(),
    bindCallback: T$1.FnToFn(),
    bindUnaryCallback: T$1.FnToFn$1(),
    bindBinaryCallback: T$1.FnToFn$2(),
    bindCallbackGuarded: T$1.FnToFn$3(),
    bindUnaryCallbackGuarded: T$1.FnToFn$4(),
    bindBinaryCallbackGuarded: T$1.FnToFn$5(),
    _get: T$1.ObjectNTodynamic(),
    handleUncaughtError: T$.ObjectAndStackTraceTovoid(),
    fork: T$1.__ToZone(),
    run: T$1.FnToR(),
    runUnary: T$1.FnAndTToR(),
    runBinary: T$1.FnAndT1AndT2ToR(),
    registerCallback: T$1.FnToFn(),
    registerUnaryCallback: T$1.FnToFn$1(),
    registerBinaryCallback: T$1.FnToFn$2(),
    errorCallback: T$1.ObjectAndStackTraceNToAsyncErrorN(),
    scheduleMicrotask: T$1.FnTovoid$18(),
    createTimer: T$1.DurationAndFnToTimer(),
    createPeriodicTimer: T$1.DurationAndFnToTimer$1(),
    print: T$.StringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(async._CustomZone))));
  dart.setMethodsDefaultTypeArgSignature(async._CustomZone, () => dart.global.Object.setPrototypeOf({
    runUnaryGuarded: [T$.dynamic()],
    runBinaryGuarded: [T$.dynamic(), T$.dynamic()],
    bindCallback: [T$.dynamic()],
    bindUnaryCallback: [T$.dynamic(), T$.dynamic()],
    bindBinaryCallback: [T$.dynamic(), T$.dynamic(), T$.dynamic()],
    bindUnaryCallbackGuarded: [T$.dynamic()],
    bindBinaryCallbackGuarded: [T$.dynamic(), T$.dynamic()],
    run: [T$.dynamic()],
    runUnary: [T$.dynamic(), T$.dynamic()],
    runBinary: [T$.dynamic(), T$.dynamic(), T$.dynamic()],
    registerCallback: [T$.dynamic()],
    registerUnaryCallback: [T$.dynamic(), T$.dynamic()],
    registerBinaryCallback: [T$.dynamic(), T$.dynamic(), T$.dynamic()]
  }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(async._CustomZone))));
  dart.setGetterSignature(async._CustomZone, () => dart.global.Object.setPrototypeOf({
    [_delegate]: T$1.ZoneDelegate(),
    [_parentDelegate]: T$1.ZoneDelegate(),
    errorZone: T$.Zone()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(async._CustomZone))));
  dart.setLibraryUri(async._CustomZone, I[39]);
  dart.setFieldSignature(async._CustomZone, () => dart.global.Object.setPrototypeOf({
    [_run]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_runUnary]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$1(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_runBinary]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$2(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_registerCallback]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_registerUnaryCallback]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$1(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_registerBinaryCallback]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$2(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_errorCallback]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToAsyncErrorN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_scheduleMicrotask]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_createTimer]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_createPeriodicTimer]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer$1(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_print]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$1(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_fork]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToZone(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_handleUncaughtError]: {type: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$2(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_delegateCache]: {type: T$1.ZoneDelegateN(), isConst: false, isFinal: false, libraryUri: I[39]},
    parent: {type: T$1._Zone(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_map$3]: {type: T$1.MapOfObjectN$ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(async._CustomZone))));
  async._RootZone = class _RootZone extends async._Zone {
    static ['_#new#tearOff']() {
      return new async._RootZone.new();
    }
    get [_run]() {
      return C[85] || CT.C85;
    }
    get [_runUnary]() {
      return C[87] || CT.C87;
    }
    get [_runBinary]() {
      return C[89] || CT.C89;
    }
    get [_registerCallback]() {
      return C[91] || CT.C91;
    }
    get [_registerUnaryCallback]() {
      return C[93] || CT.C93;
    }
    get [_registerBinaryCallback]() {
      return C[95] || CT.C95;
    }
    get [_errorCallback]() {
      return C[97] || CT.C97;
    }
    get [_scheduleMicrotask]() {
      return C[99] || CT.C99;
    }
    get [_createTimer]() {
      return C[101] || CT.C101;
    }
    get [_createPeriodicTimer]() {
      return C[103] || CT.C103;
    }
    get [_print]() {
      return C[105] || CT.C105;
    }
    get [_fork]() {
      return C[107] || CT.C107;
    }
    get [_handleUncaughtError]() {
      return C[109] || CT.C109;
    }
    get parent() {
      return null;
    }
    get [_map$3]() {
      return async._RootZone._rootMap;
    }
    get [_delegate]() {
      let t$36113;
      t$36113 = async._RootZone._rootDelegate;
      return t$36113 == null ? async._RootZone._rootDelegate = new async._ZoneDelegate.new(this) : t$36113;
    }
    get [_parentDelegate]() {
      return this[_delegate];
    }
    get errorZone() {
      return this;
    }
    runGuarded(f) {
      if (f == null) dart.nullFailed(I[86], 1579, 24, "f");
      try {
        if (async._rootZone == async.Zone._current) {
          f();
          return;
        }
        async._rootRun(T$.void(), null, null, this, f);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this.handleUncaughtError(e, s);
        } else
          throw t$36$35e;
      }
    }
    runUnaryGuarded(T, f, arg) {
      if (f == null) dart.nullFailed(I[86], 1591, 32, "f");
      try {
        if (async._rootZone == async.Zone._current) {
          f(arg);
          return;
        }
        async._rootRunUnary(T$.void(), T, null, null, this, f, arg);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this.handleUncaughtError(e, s);
        } else
          throw t$36$35e;
      }
    }
    runBinaryGuarded(T1, T2, f, arg1, arg2) {
      if (f == null) dart.nullFailed(I[86], 1603, 38, "f");
      try {
        if (async._rootZone == async.Zone._current) {
          f(arg1, arg2);
          return;
        }
        async._rootRunBinary(T$.void(), T1, T2, null, null, this, f, arg1, arg2);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this.handleUncaughtError(e, s);
        } else
          throw t$36$35e;
      }
    }
    bindCallback(R, f) {
      if (f == null) dart.nullFailed(I[86], 1615, 37, "f");
      return dart.fn(() => this.run(R, f), R[_eval]("0()"));
    }
    bindUnaryCallback(R, T, f) {
      if (f == null) dart.nullFailed(I[86], 1619, 53, "f");
      return dart.fn(arg => this.runUnary(R, T, f, arg), R[_eval]("@<0>")[_bind](T)[_eval]("1(2)"));
    }
    bindBinaryCallback(R, T1, T2, f) {
      if (f == null) dart.nullFailed(I[86], 1624, 9, "f");
      return dart.fn((arg1, arg2) => this.runBinary(R, T1, T2, f, arg1, arg2), R[_eval]("@<0>")[_bind](T1)[_bind](T2)[_eval]("1(2,3)"));
    }
    bindCallbackGuarded(f) {
      if (f == null) dart.nullFailed(I[86], 1628, 44, "f");
      return dart.fn(() => this.runGuarded(f), T$.VoidTovoid());
    }
    bindUnaryCallbackGuarded(T, f) {
      if (f == null) dart.nullFailed(I[86], 1632, 53, "f");
      return dart.fn(arg => this.runUnaryGuarded(T, f, arg), T[_eval]("~(0)"));
    }
    bindBinaryCallbackGuarded(T1, T2, f) {
      if (f == null) dart.nullFailed(I[86], 1637, 12, "f");
      return dart.fn((arg1, arg2) => this.runBinaryGuarded(T1, T2, f, arg1, arg2), T1[_eval]("@<0>")[_bind](T2)[_eval]("~(1,2)"));
    }
    _get(key) {
      return null;
    }
    handleUncaughtError(error, stackTrace) {
      if (error == null) dart.nullFailed(I[86], 1645, 35, "error");
      if (stackTrace == null) dart.nullFailed(I[86], 1645, 53, "stackTrace");
      async._rootHandleError(error, stackTrace);
    }
    fork(opts) {
      let specification = opts && 'specification' in opts ? opts.specification : null;
      let zoneValues = opts && 'zoneValues' in opts ? opts.zoneValues : null;
      return async._rootFork(null, null, this, specification, zoneValues);
    }
    run(R, f) {
      if (f == null) dart.nullFailed(I[86], 1654, 14, "f");
      if (async.Zone._current == async._rootZone) return f();
      return async._rootRun(R, null, null, this, f);
    }
    runUnary(R, T, f, arg) {
      if (f == null) dart.nullFailed(I[86], 1660, 22, "f");
      if (async.Zone._current == async._rootZone) return f(arg);
      return async._rootRunUnary(R, T, null, null, this, f, arg);
    }
    runBinary(R, T1, T2, f, arg1, arg2) {
      if (f == null) dart.nullFailed(I[86], 1665, 28, "f");
      if (async.Zone._current == async._rootZone) return f(arg1, arg2);
      return async._rootRunBinary(R, T1, T2, null, null, this, f, arg1, arg2);
    }
    registerCallback(R, f) {
      if (f == null) dart.nullFailed(I[86], 1670, 41, "f");
      return f;
    }
    registerUnaryCallback(R, T, f) {
      if (f == null) dart.nullFailed(I[86], 1672, 57, "f");
      return f;
    }
    registerBinaryCallback(R, T1, T2, f) {
      if (f == null) dart.nullFailed(I[86], 1675, 13, "f");
      return f;
    }
    errorCallback(error, stackTrace) {
      if (error == null) dart.nullFailed(I[86], 1678, 36, "error");
      return null;
    }
    scheduleMicrotask(f) {
      if (f == null) dart.nullFailed(I[86], 1680, 31, "f");
      async._rootScheduleMicrotask(null, null, this, f);
    }
    createTimer(duration, f) {
      if (duration == null) dart.nullFailed(I[86], 1684, 30, "duration");
      if (f == null) dart.nullFailed(I[86], 1684, 45, "f");
      return async.Timer._createTimer(duration, f);
    }
    createPeriodicTimer(duration, f) {
      if (duration == null) dart.nullFailed(I[86], 1688, 38, "duration");
      if (f == null) dart.nullFailed(I[86], 1688, 53, "f");
      return async.Timer._createPeriodicTimer(duration, f);
    }
    print(line) {
      if (line == null) dart.nullFailed(I[86], 1692, 21, "line");
      _internal.printToConsole(line);
    }
  };
  (async._RootZone.new = function() {
    dart.global.Object.getPrototypeOf(async._RootZone).new.call(this);
    ;
  }).prototype = async._RootZone.prototype;
  dart.addRtiResources(async._RootZone, ["async|_RootZone"]);
  dart.setMethodSignature(async._RootZone, () => dart.global.Object.setPrototypeOf({
    runGuarded: T$1.FnTovoid$18(),
    runUnaryGuarded: T$1.FnAndTTovoid(),
    runBinaryGuarded: T$1.FnAndT1AndT2Tovoid(),
    bindCallback: T$1.FnToFn(),
    bindUnaryCallback: T$1.FnToFn$1(),
    bindBinaryCallback: T$1.FnToFn$2(),
    bindCallbackGuarded: T$1.FnToFn$3(),
    bindUnaryCallbackGuarded: T$1.FnToFn$4(),
    bindBinaryCallbackGuarded: T$1.FnToFn$5(),
    _get: T$1.ObjectNTodynamic(),
    handleUncaughtError: T$.ObjectAndStackTraceTovoid(),
    fork: T$1.__ToZone(),
    run: T$1.FnToR(),
    runUnary: T$1.FnAndTToR(),
    runBinary: T$1.FnAndT1AndT2ToR(),
    registerCallback: T$1.FnToFn(),
    registerUnaryCallback: T$1.FnToFn$1(),
    registerBinaryCallback: T$1.FnToFn$2(),
    errorCallback: T$1.ObjectAndStackTraceNToAsyncErrorN(),
    scheduleMicrotask: T$1.FnTovoid$18(),
    createTimer: T$1.DurationAndFnToTimer(),
    createPeriodicTimer: T$1.DurationAndFnToTimer$1(),
    print: T$.StringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(async._RootZone))));
  dart.setMethodsDefaultTypeArgSignature(async._RootZone, () => dart.global.Object.setPrototypeOf({
    runUnaryGuarded: [T$.dynamic()],
    runBinaryGuarded: [T$.dynamic(), T$.dynamic()],
    bindCallback: [T$.dynamic()],
    bindUnaryCallback: [T$.dynamic(), T$.dynamic()],
    bindBinaryCallback: [T$.dynamic(), T$.dynamic(), T$.dynamic()],
    bindUnaryCallbackGuarded: [T$.dynamic()],
    bindBinaryCallbackGuarded: [T$.dynamic(), T$.dynamic()],
    run: [T$.dynamic()],
    runUnary: [T$.dynamic(), T$.dynamic()],
    runBinary: [T$.dynamic(), T$.dynamic(), T$.dynamic()],
    registerCallback: [T$.dynamic()],
    registerUnaryCallback: [T$.dynamic(), T$.dynamic()],
    registerBinaryCallback: [T$.dynamic(), T$.dynamic(), T$.dynamic()]
  }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(async._RootZone))));
  dart.setGetterSignature(async._RootZone, () => dart.global.Object.setPrototypeOf({
    [_run]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR(),
    [_runUnary]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$1(),
    [_runBinary]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToR$2(),
    [_registerCallback]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn(),
    [_registerUnaryCallback]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$1(),
    [_registerBinaryCallback]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToFn$2(),
    [_errorCallback]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToAsyncErrorN(),
    [_scheduleMicrotask]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid(),
    [_createTimer]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer(),
    [_createPeriodicTimer]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToTimer$1(),
    [_print]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$1(),
    [_fork]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__ToZone(),
    [_handleUncaughtError]: T$1._ZoneFunctionOfZoneAndZoneDelegateAndZone__Tovoid$2(),
    parent: T$1._ZoneN(),
    [_map$3]: T$1.MapOfObjectN$ObjectN(),
    [_delegate]: T$1.ZoneDelegate(),
    [_parentDelegate]: T$1.ZoneDelegate(),
    errorZone: T$.Zone()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(async._RootZone))));
  dart.setLibraryUri(async._RootZone, I[39]);
  dart.setStaticFieldSignature(async._RootZone, () => ['_rootMap', '_rootDelegate']);
  dart.defineLazy(async._RootZone, {
    /*async._RootZone._rootMap*/get _rootMap() {
      return new _js_helper.LinkedMap.new();
    },
    /*async._RootZone._rootDelegate*/get _rootDelegate() {
      return null;
    },
    set _rootDelegate(value) {}
  }, false);
  async.async = function _async(T, initGenerator) {
    if (initGenerator == null) dart.nullFailed(I[73], 25, 22, "initGenerator");
    let iter = null;
    let onValue = null;
    let t$36$35onValue$35isSet = false;
    function t$36$35onValue$35get() {
      return t$36$35onValue$35isSet ? onValue : dart.throw(new _internal.LateError.localNI("onValue"));
    }
    function t$36$35onValue$35set(onValue$35param) {
      if (onValue$35param == null) dart.nullFailed(I[73], 27, 34, "onValue#param");
      t$36$35onValue$35isSet = true;
      return onValue = onValue$35param;
    }
    let onError = null;
    let t$36$35onError$35isSet = false;
    function t$36$35onError$35get() {
      return t$36$35onError$35isSet ? onError : dart.throw(new _internal.LateError.localNI("onError"));
    }
    function t$36$35onError$35set(onError$35param) {
      if (onError$35param == null) dart.nullFailed(I[73], 28, 45, "onError#param");
      t$36$35onError$35isSet = true;
      return onError = onError$35param;
    }
    function onAwait(value) {
      let f = null;
      if (T$0._Future()[_is](value)) {
        f = value;
      } else if (T$0.Future()[_is](value)) {
        f = new (G._FutureOfObjectN()).new();
        f[_chainForeignFuture](value);
      } else {
        f = new (G._FutureOfObjectN()).value(value);
      }
      f = f[_thenAwait](T$.ObjectN(), t$36$35onValue$35get(), t$36$35onError$35get());
      return f;
    }
    dart.fn(onAwait, T$1.ObjectNTo_FutureOfObjectN());
    t$36$35onValue$35set(dart.fn(value => {
      let iteratorResult = iter.next(value);
      value = iteratorResult.value;
      return iteratorResult.done ? value : onAwait(value);
    }, T$.ObjectNToObjectN()));
    t$36$35onError$35set(dart.fn((value, stackTrace) => {
      if (value == null) dart.nullFailed(I[73], 58, 14, "value");
      let iteratorResult = iter.throw(dart.createErrorWithStack(value, stackTrace));
      value = iteratorResult.value;
      return iteratorResult.done ? value : onAwait(value);
    }, T$1.ObjectAndStackTraceNToObject()));
    let zone = async.Zone.current;
    if (zone != async._rootZone) {
      t$36$35onValue$35set(zone.registerUnaryCallback(T$.ObjectN(), T$.ObjectN(), t$36$35onValue$35get()));
      t$36$35onError$35set(zone.registerBinaryCallback(T$.Object(), T$.Object(), T$.StackTraceN(), t$36$35onError$35get()));
    }
    let asyncFuture = new (async._Future$(T)).new();
    let isRunningAsEvent = false;
    function runBody() {
      try {
        iter = initGenerator()[Symbol.iterator]();
        let iteratorValue = iter.next(null);
        let value = iteratorValue.value;
        if (iteratorValue.done) {
          if (T$0.Future()[_is](value)) {
            if (T$0._Future()[_is](value)) {
              if (isRunningAsEvent) {
                async._Future._chainCoreFutureSync(value, asyncFuture);
              } else {
                async._Future._chainCoreFutureAsync(value, asyncFuture);
              }
            } else {
              asyncFuture[_chainForeignFuture](value);
            }
          } else if (isRunningAsEvent) {
            asyncFuture[_completeWithValue](value);
          } else {
            asyncFuture[_asyncComplete](value);
          }
        } else {
          async._Future._chainCoreFutureSync(onAwait(value), asyncFuture);
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          if (isRunningAsEvent) {
            async._completeWithErrorCallback(asyncFuture, e, s);
          } else {
            async._asyncCompleteWithErrorCallback(asyncFuture, e, s);
          }
        } else
          throw t$36$35e;
      }
    }
    dart.fn(runBody, T$0.VoidToNull());
    if (dart.test(dart.startAsyncSynchronously)) {
      runBody();
      isRunningAsEvent = true;
    } else {
      isRunningAsEvent = true;
      async.scheduleMicrotask(runBody);
    }
    return asyncFuture;
  };
  async.awaitWithTypeCheck = function _awaitWithTypeCheck(T, value) {
    return T[_is](value) ? value : new (G._FutureOfObjectN()).value(value);
  };
  async.unawaited = function unawaited(future) {
  };
  async['FutureExtensions|onError'] = function FutureExtensions$124onError(T, E, $this, handleError, opts) {
    if ($this == null) dart.nullFailed(I[79], 1074, 13, "#this");
    if (handleError == null) dart.nullFailed(I[79], 1075, 19, "handleError");
    let test = opts && 'test' in opts ? opts.test : null;
    function onError(error, stackTrace) {
      if (error == null) dart.nullFailed(I[79], 1077, 32, "error");
      if (stackTrace == null) dart.nullFailed(I[79], 1077, 50, "stackTrace");
      if (!E[_is](error) || test != null && !dart.test(test(error))) {
        dart.throw(error);
      }
      return handleError(error, stackTrace);
    }
    dart.fn(onError, T[_eval]("0/(core|Object,core|StackTrace)"));
    if (T$1._FutureOfObjectN()[_is]($this)) {
      return $this[_safeOnError](T, onError);
    }
    return $this.then(T, dart.fn(value => value, T[_eval]("0(0)")), {onError: onError});
  };
  async['FutureExtensions|get#onError'] = function FutureExtensions$124get$35onError(T, $this) {
    if ($this == null) dart.nullFailed(I[79], 1074, 13, "#this");
    return dart.gFn((E, handleError, opts) => {
      if (handleError == null) dart.nullFailed(I[79], 1075, 19, "handleError");
      let test = opts && 'test' in opts ? opts.test : null;
      return async['FutureExtensions|onError'](T, E, $this, handleError, {test: test});
    }, T[_eval]("async|Future<0>(0/(0^,core|StackTrace){test:core|bool(0^)?})<core|Object>"), dart.constList([T$.Object()], T$.dynamic()));
  };
  async['FutureExtensions|ignore'] = function FutureExtensions$124ignore(T, $this) {
    if ($this == null) dart.nullFailed(I[79], 1110, 8, "#this");
    let self = $this;
    if (T[_eval]("async|_Future<0>")[_is](self)) {
      self[_ignore]();
    } else {
      self.then(T$.void(), C[111] || CT.C111, {onError: C[111] || CT.C111});
    }
  };
  async['FutureExtensions|get#ignore'] = function FutureExtensions$124get$35ignore(T, $this) {
    if ($this == null) dart.nullFailed(I[79], 1110, 8, "#this");
    return dart.fn(() => async['FutureExtensions|ignore'](T, $this), T$.VoidTovoid());
  };
  async['FutureExtensions|_ignore'] = function FutureExtensions$124_ignore(_, __ = null) {
  };
  async._completeWithErrorCallback = function _completeWithErrorCallback(result, error, stackTrace) {
    if (result == null) dart.nullFailed(I[79], 1339, 13, "result");
    if (error == null) dart.nullFailed(I[79], 1339, 28, "error");
    let replacement = async.Zone.current.errorCallback(error, stackTrace);
    if (replacement != null) {
      error = replacement.error;
      stackTrace = replacement.stackTrace;
    } else {
      stackTrace == null ? stackTrace = async.AsyncError.defaultStackTrace(error) : null;
    }
    result[_completeError](error, stackTrace);
  };
  async._asyncCompleteWithErrorCallback = function _asyncCompleteWithErrorCallback(result, error, stackTrace) {
    if (result == null) dart.nullFailed(I[79], 1352, 13, "result");
    if (error == null) dart.nullFailed(I[79], 1352, 28, "error");
    let replacement = async.Zone.current.errorCallback(error, stackTrace);
    if (replacement != null) {
      error = replacement.error;
      stackTrace = replacement.stackTrace;
    } else {
      stackTrace == null ? stackTrace = async.AsyncError.defaultStackTrace(error) : null;
    }
    result[_asyncCompleteError](error, stackTrace);
  };
  async['FutureIterable|get#wait'] = function FutureIterable$124get$35wait(T, $this) {
    if ($this == null) dart.nullFailed(I[80], 31, 23, "#this");
    let results = (() => {
      let t$36128 = _interceptors.JSArray$(T[_eval]("async|_FutureResult<0>")).of([]);
      for (let f of $this)
        t$36128.push(new (async._FutureResult$(T)).new(f));
      return t$36128;
    })();
    if (dart.test(results[$isEmpty])) return async.Future$(T[_eval]("core|List<0>")).value(_interceptors.JSArray$(T).of([]));
    let c = async.Completer$(T[_eval]("core|List<0>")).sync();
    async._FutureResult._waitAll(results, dart.fn(errors => {
      if (errors == null) dart.nullFailed(I[80], 35, 38, "errors");
      if (errors === 0) {
        c.complete((() => {
          let t$36129 = _interceptors.JSArray$(T).of([]);
          for (let r of results)
            t$36129.push(r.value);
          return t$36129;
        })());
      } else {
        let errorList = (() => {
          let t$36130 = G.JSArrayOfAsyncErrorN().of([]);
          for (let r of results)
            t$36130.push(r.errorOrNull);
          return t$36130;
        })();
        c.completeError(new (async.ParallelWaitError$(T[_eval]("core|List<0?>"), T$1.ListOfAsyncErrorN())).new((() => {
          let t$36131 = _interceptors.JSArray$(T[_eval]("0?")).of([]);
          for (let r of results)
            t$36131.push(r.valueOrNull);
          return t$36131;
        })(), errorList, {errorCount: errors, defaultError: errorList[$firstWhere](C[112] || CT.C112)}));
      }
    }, T$.intTovoid()));
    return c.future;
  };
  async._notNull = function _notNull$(object) {
    return object != null;
  };
  async['FutureRecord2|get#wait'] = function FutureRecord2$124get$35wait(T1, T2, $this) {
    if ($this == null) dart.nullFailed(I[80], 74, 24, "#this");
    let c = async.Completer$(T1[_eval]("@<0>")[_bind](T2)[_eval]("+(1,2)")).sync();
    let v1 = new (async._FutureResult$(T1)).new($this.$1);
    let v2 = new (async._FutureResult$(T2)).new($this.$2);
    async._FutureResult._waitAll(G.JSArrayOf_FutureResult().of([v1, v2]), dart.fn(errors => {
      let t$36133;
      if (errors == null) dart.nullFailed(I[80], 79, 43, "errors");
      if (errors === 0) {
        c.complete(dart.recordLiteral("2;", 2, void 0, [v1.value, v2.value]));
      } else {
        c.completeError(new (async.ParallelWaitError$(T1[_eval]("@<0>")[_bind](T2)[_eval]("+(1?,2?)"), T$1.RecOfAsyncErrorNAndAsyncErrorN())).new(dart.recordLiteral("2;", 2, void 0, [v1.valueOrNull, v2.valueOrNull]), dart.recordLiteral("2;", 2, void 0, [v1.errorOrNull, v2.errorOrNull]), {errorCount: errors, defaultError: (t$36133 = v1.errorOrNull, t$36133 == null ? v2.errorOrNull : t$36133)}));
      }
    }, T$.intTovoid()));
    return c.future;
  };
  async['FutureRecord3|get#wait'] = function FutureRecord3$124get$35wait(T1, T2, T3, $this) {
    if ($this == null) dart.nullFailed(I[80], 99, 28, "#this");
    let c = async.Completer$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_eval]("+(1,2,3)")).sync();
    let v1 = new (async._FutureResult$(T1)).new($this.$1);
    let v2 = new (async._FutureResult$(T2)).new($this.$2);
    let v3 = new (async._FutureResult$(T3)).new($this.$3);
    async._FutureResult._waitAll(G.JSArrayOf_FutureResult().of([v1, v2, v3]), dart.fn(errors => {
      let t$36134, t$36134$;
      if (errors == null) dart.nullFailed(I[80], 105, 47, "errors");
      if (errors === 0) {
        c.complete(dart.recordLiteral("3;", 3, void 0, [v1.value, v2.value, v3.value]));
      } else {
        c.completeError(new (async.ParallelWaitError$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_eval]("+(1?,2?,3?)"), T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN())).new(dart.recordLiteral("3;", 3, void 0, [v1.valueOrNull, v2.valueOrNull, v3.valueOrNull]), dart.recordLiteral("3;", 3, void 0, [v1.errorOrNull, v2.errorOrNull, v3.errorOrNull]), {errorCount: errors, defaultError: (t$36134$ = (t$36134 = v1.errorOrNull, t$36134 == null ? v2.errorOrNull : t$36134), t$36134$ == null ? v3.errorOrNull : t$36134$)}));
      }
    }, T$.intTovoid()));
    return c.future;
  };
  async['FutureRecord4|get#wait'] = function FutureRecord4$124get$35wait(T1, T2, T3, T4, $this) {
    if ($this == null) dart.nullFailed(I[80], 130, 32, "#this");
    let c = async.Completer$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_eval]("+(1,2,3,4)")).sync();
    let v1 = new (async._FutureResult$(T1)).new($this.$1);
    let v2 = new (async._FutureResult$(T2)).new($this.$2);
    let v3 = new (async._FutureResult$(T3)).new($this.$3);
    let v4 = new (async._FutureResult$(T4)).new($this.$4);
    async._FutureResult._waitAll(G.JSArrayOf_FutureResult().of([v1, v2, v3, v4]), dart.fn(errors => {
      let t$36135, t$36135$, t$36135$0;
      if (errors == null) dart.nullFailed(I[80], 137, 51, "errors");
      if (errors === 0) {
        c.complete(dart.recordLiteral("4;", 4, void 0, [v1.value, v2.value, v3.value, v4.value]));
      } else {
        c.completeError(new (async.ParallelWaitError$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_eval]("+(1?,2?,3?,4?)"), T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__())).new(dart.recordLiteral("4;", 4, void 0, [v1.valueOrNull, v2.valueOrNull, v3.valueOrNull, v4.valueOrNull]), dart.recordLiteral("4;", 4, void 0, [v1.errorOrNull, v2.errorOrNull, v3.errorOrNull, v4.errorOrNull]), {errorCount: errors, defaultError: (t$36135$0 = (t$36135$ = (t$36135 = v1.errorOrNull, t$36135 == null ? v2.errorOrNull : t$36135), t$36135$ == null ? v3.errorOrNull : t$36135$), t$36135$0 == null ? v4.errorOrNull : t$36135$0)}));
      }
    }, T$.intTovoid()));
    return c.future;
  };
  async['FutureRecord5|get#wait'] = function FutureRecord5$124get$35wait(T1, T2, T3, T4, T5, $this) {
    if ($this == null) dart.nullFailed(I[80], 166, 36, "#this");
    let c = async.Completer$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_eval]("+(1,2,3,4,5)")).sync();
    let v1 = new (async._FutureResult$(T1)).new($this.$1);
    let v2 = new (async._FutureResult$(T2)).new($this.$2);
    let v3 = new (async._FutureResult$(T3)).new($this.$3);
    let v4 = new (async._FutureResult$(T4)).new($this.$4);
    let v5 = new (async._FutureResult$(T5)).new($this.$5);
    async._FutureResult._waitAll(G.JSArrayOf_FutureResult().of([v1, v2, v3, v4, v5]), dart.fn(errors => {
      let t$36136, t$36136$, t$36136$0, t$36136$1;
      if (errors == null) dart.nullFailed(I[80], 174, 55, "errors");
      if (errors === 0) {
        c.complete(dart.recordLiteral("5;", 5, void 0, [v1.value, v2.value, v3.value, v4.value, v5.value]));
      } else {
        c.completeError(new (async.ParallelWaitError$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_eval]("+(1?,2?,3?,4?,5?)"), T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$1())).new(dart.recordLiteral("5;", 5, void 0, [v1.valueOrNull, v2.valueOrNull, v3.valueOrNull, v4.valueOrNull, v5.valueOrNull]), dart.recordLiteral("5;", 5, void 0, [v1.errorOrNull, v2.errorOrNull, v3.errorOrNull, v4.errorOrNull, v5.errorOrNull]), {errorCount: errors, defaultError: (t$36136$1 = (t$36136$0 = (t$36136$ = (t$36136 = v1.errorOrNull, t$36136 == null ? v2.errorOrNull : t$36136), t$36136$ == null ? v3.errorOrNull : t$36136$), t$36136$0 == null ? v4.errorOrNull : t$36136$0), t$36136$1 == null ? v5.errorOrNull : t$36136$1)}));
      }
    }, T$.intTovoid()));
    return c.future;
  };
  async['FutureRecord6|get#wait'] = function FutureRecord6$124get$35wait(T1, T2, T3, T4, T5, T6, $this) {
    if ($this == null) dart.nullFailed(I[80], 217, 40, "#this");
    let c = async.Completer$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_bind](T6)[_eval]("+(1,2,3,4,5,6)")).sync();
    let v1 = new (async._FutureResult$(T1)).new($this.$1);
    let v2 = new (async._FutureResult$(T2)).new($this.$2);
    let v3 = new (async._FutureResult$(T3)).new($this.$3);
    let v4 = new (async._FutureResult$(T4)).new($this.$4);
    let v5 = new (async._FutureResult$(T5)).new($this.$5);
    let v6 = new (async._FutureResult$(T6)).new($this.$6);
    async._FutureResult._waitAll(G.JSArrayOf_FutureResult().of([v1, v2, v3, v4, v5, v6]), dart.fn(errors => {
      let t$36137, t$36137$, t$36137$0, t$36137$1, t$36137$2;
      if (errors == null) dart.nullFailed(I[80], 226, 59, "errors");
      if (errors === 0) {
        c.complete(dart.recordLiteral("6;", 6, void 0, [v1.value, v2.value, v3.value, v4.value, v5.value, v6.value]));
      } else {
        c.completeError(new (async.ParallelWaitError$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_bind](T6)[_eval]("+(1?,2?,3?,4?,5?,6?)"), T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$2())).new(dart.recordLiteral("6;", 6, void 0, [v1.valueOrNull, v2.valueOrNull, v3.valueOrNull, v4.valueOrNull, v5.valueOrNull, v6.valueOrNull]), dart.recordLiteral("6;", 6, void 0, [v1.errorOrNull, v2.errorOrNull, v3.errorOrNull, v4.errorOrNull, v5.errorOrNull, v6.errorOrNull]), {errorCount: errors, defaultError: (t$36137$2 = (t$36137$1 = (t$36137$0 = (t$36137$ = (t$36137 = v1.errorOrNull, t$36137 == null ? v2.errorOrNull : t$36137), t$36137$ == null ? v3.errorOrNull : t$36137$), t$36137$0 == null ? v4.errorOrNull : t$36137$0), t$36137$1 == null ? v5.errorOrNull : t$36137$1), t$36137$2 == null ? v6.errorOrNull : t$36137$2)}));
      }
    }, T$.intTovoid()));
    return c.future;
  };
  async['FutureRecord7|get#wait'] = function FutureRecord7$124get$35wait(T1, T2, T3, T4, T5, T6, T7, $this) {
    if ($this == null) dart.nullFailed(I[80], 274, 44, "#this");
    let c = async.Completer$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_bind](T6)[_bind](T7)[_eval]("+(1,2,3,4,5,6,7)")).sync();
    let v1 = new (async._FutureResult$(T1)).new($this.$1);
    let v2 = new (async._FutureResult$(T2)).new($this.$2);
    let v3 = new (async._FutureResult$(T3)).new($this.$3);
    let v4 = new (async._FutureResult$(T4)).new($this.$4);
    let v5 = new (async._FutureResult$(T5)).new($this.$5);
    let v6 = new (async._FutureResult$(T6)).new($this.$6);
    let v7 = new (async._FutureResult$(T7)).new($this.$7);
    async._FutureResult._waitAll(G.JSArrayOf_FutureResult().of([v1, v2, v3, v4, v5, v6, v7]), dart.fn(errors => {
      let t$36138, t$36138$, t$36138$0, t$36138$1, t$36138$2, t$36138$3;
      if (errors == null) dart.nullFailed(I[80], 284, 63, "errors");
      if (errors === 0) {
        c.complete(dart.recordLiteral("7;", 7, void 0, [v1.value, v2.value, v3.value, v4.value, v5.value, v6.value, v7.value]));
      } else {
        c.completeError(new (async.ParallelWaitError$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_bind](T6)[_bind](T7)[_eval]("+(1?,2?,3?,4?,5?,6?,7?)"), T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$3())).new(dart.recordLiteral("7;", 7, void 0, [v1.valueOrNull, v2.valueOrNull, v3.valueOrNull, v4.valueOrNull, v5.valueOrNull, v6.valueOrNull, v7.valueOrNull]), dart.recordLiteral("7;", 7, void 0, [v1.errorOrNull, v2.errorOrNull, v3.errorOrNull, v4.errorOrNull, v5.errorOrNull, v6.errorOrNull, v7.errorOrNull]), {errorCount: errors, defaultError: (t$36138$3 = (t$36138$2 = (t$36138$1 = (t$36138$0 = (t$36138$ = (t$36138 = v1.errorOrNull, t$36138 == null ? v2.errorOrNull : t$36138), t$36138$ == null ? v3.errorOrNull : t$36138$), t$36138$0 == null ? v4.errorOrNull : t$36138$0), t$36138$1 == null ? v5.errorOrNull : t$36138$1), t$36138$2 == null ? v6.errorOrNull : t$36138$2), t$36138$3 == null ? v7.errorOrNull : t$36138$3)}));
      }
    }, T$.intTovoid()));
    return c.future;
  };
  async['FutureRecord8|get#wait'] = function FutureRecord8$124get$35wait(T1, T2, T3, T4, T5, T6, T7, T8, $this) {
    if ($this == null) dart.nullFailed(I[80], 343, 48, "#this");
    let c = async.Completer$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_bind](T6)[_bind](T7)[_bind](T8)[_eval]("+(1,2,3,4,5,6,7,8)")).sync();
    let v1 = new (async._FutureResult$(T1)).new($this.$1);
    let v2 = new (async._FutureResult$(T2)).new($this.$2);
    let v3 = new (async._FutureResult$(T3)).new($this.$3);
    let v4 = new (async._FutureResult$(T4)).new($this.$4);
    let v5 = new (async._FutureResult$(T5)).new($this.$5);
    let v6 = new (async._FutureResult$(T6)).new($this.$6);
    let v7 = new (async._FutureResult$(T7)).new($this.$7);
    let v8 = new (async._FutureResult$(T8)).new($this.$8);
    async._FutureResult._waitAll(G.JSArrayOf_FutureResult().of([v1, v2, v3, v4, v5, v6, v7, v8]), dart.fn(errors => {
      let t$36139, t$36139$, t$36139$0, t$36139$1, t$36139$2, t$36139$3, t$36139$4;
      if (errors == null) dart.nullFailed(I[80], 354, 67, "errors");
      if (errors === 0) {
        c.complete(dart.recordLiteral("8;", 8, void 0, [v1.value, v2.value, v3.value, v4.value, v5.value, v6.value, v7.value, v8.value]));
      } else {
        c.completeError(new (async.ParallelWaitError$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_bind](T6)[_bind](T7)[_bind](T8)[_eval]("+(1?,2?,3?,4?,5?,6?,7?,8?)"), T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$4())).new(dart.recordLiteral("8;", 8, void 0, [v1.valueOrNull, v2.valueOrNull, v3.valueOrNull, v4.valueOrNull, v5.valueOrNull, v6.valueOrNull, v7.valueOrNull, v8.valueOrNull]), dart.recordLiteral("8;", 8, void 0, [v1.errorOrNull, v2.errorOrNull, v3.errorOrNull, v4.errorOrNull, v5.errorOrNull, v6.errorOrNull, v7.errorOrNull, v8.errorOrNull]), {errorCount: errors, defaultError: (t$36139$4 = (t$36139$3 = (t$36139$2 = (t$36139$1 = (t$36139$0 = (t$36139$ = (t$36139 = v1.errorOrNull, t$36139 == null ? v2.errorOrNull : t$36139), t$36139$ == null ? v3.errorOrNull : t$36139$), t$36139$0 == null ? v4.errorOrNull : t$36139$0), t$36139$1 == null ? v5.errorOrNull : t$36139$1), t$36139$2 == null ? v6.errorOrNull : t$36139$2), t$36139$3 == null ? v7.errorOrNull : t$36139$3), t$36139$4 == null ? v8.errorOrNull : t$36139$4)}));
      }
    }, T$.intTovoid()));
    return c.future;
  };
  async['FutureRecord9|get#wait'] = function FutureRecord9$124get$35wait(T1, T2, T3, T4, T5, T6, T7, T8, T9, $this) {
    if ($this == null) dart.nullFailed(I[80], 418, 52, "#this");
    let c = async.Completer$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_bind](T6)[_bind](T7)[_bind](T8)[_bind](T9)[_eval]("+(1,2,3,4,5,6,7,8,9)")).sync();
    let v1 = new (async._FutureResult$(T1)).new($this.$1);
    let v2 = new (async._FutureResult$(T2)).new($this.$2);
    let v3 = new (async._FutureResult$(T3)).new($this.$3);
    let v4 = new (async._FutureResult$(T4)).new($this.$4);
    let v5 = new (async._FutureResult$(T5)).new($this.$5);
    let v6 = new (async._FutureResult$(T6)).new($this.$6);
    let v7 = new (async._FutureResult$(T7)).new($this.$7);
    let v8 = new (async._FutureResult$(T8)).new($this.$8);
    let v9 = new (async._FutureResult$(T9)).new($this.$9);
    async._FutureResult._waitAll(G.JSArrayOf_FutureResult().of([v1, v2, v3, v4, v5, v6, v7, v8, v9]), dart.fn(errors => {
      let t$36140, t$36140$, t$36140$0, t$36140$1, t$36140$2, t$36140$3, t$36140$4, t$36140$5;
      if (errors == null) dart.nullFailed(I[80], 430, 71, "errors");
      if (errors === 0) {
        c.complete(dart.recordLiteral("9;", 9, void 0, [v1.value, v2.value, v3.value, v4.value, v5.value, v6.value, v7.value, v8.value, v9.value]));
      } else {
        c.completeError(new (async.ParallelWaitError$(T1[_eval]("@<0>")[_bind](T2)[_bind](T3)[_bind](T4)[_bind](T5)[_bind](T6)[_bind](T7)[_bind](T8)[_bind](T9)[_eval]("+(1?,2?,3?,4?,5?,6?,7?,8?,9?)"), T$1.RecOfAsyncErrorNAndAsyncErrorNAndAsyncErrorN__$5())).new(dart.recordLiteral("9;", 9, void 0, [v1.valueOrNull, v2.valueOrNull, v3.valueOrNull, v4.valueOrNull, v5.valueOrNull, v6.valueOrNull, v7.valueOrNull, v8.valueOrNull, v9.valueOrNull]), dart.recordLiteral("9;", 9, void 0, [v1.errorOrNull, v2.errorOrNull, v3.errorOrNull, v4.errorOrNull, v5.errorOrNull, v6.errorOrNull, v7.errorOrNull, v8.errorOrNull, v9.errorOrNull]), {errorCount: errors, defaultError: (t$36140$5 = (t$36140$4 = (t$36140$3 = (t$36140$2 = (t$36140$1 = (t$36140$0 = (t$36140$ = (t$36140 = v1.errorOrNull, t$36140 == null ? v2.errorOrNull : t$36140), t$36140$ == null ? v3.errorOrNull : t$36140$), t$36140$0 == null ? v4.errorOrNull : t$36140$0), t$36140$1 == null ? v5.errorOrNull : t$36140$1), t$36140$2 == null ? v6.errorOrNull : t$36140$2), t$36140$3 == null ? v7.errorOrNull : t$36140$3), t$36140$4 == null ? v8.errorOrNull : t$36140$4), t$36140$5 == null ? v9.errorOrNull : t$36140$5)}));
      }
    }, T$.intTovoid()));
    return c.future;
  };
  async._registerErrorHandler = function _registerErrorHandler(errorHandler, zone) {
    if (errorHandler == null) dart.nullFailed(I[81], 989, 41, "errorHandler");
    if (zone == null) dart.nullFailed(I[81], 989, 60, "zone");
    if (T$1.ObjectAndStackTraceTodynamic()[_is](errorHandler)) {
      return zone.registerBinaryCallback(T$.dynamic(), T$.Object(), T$.StackTrace(), errorHandler);
    }
    if (T$1.ObjectTodynamic()[_is](errorHandler)) {
      return zone.registerUnaryCallback(T$.dynamic(), T$.Object(), errorHandler);
    }
    dart.throw(new core.ArgumentError.value(errorHandler, "onError", "Error handler must accept one Object or one Object and a StackTrace as arguments, and return a value of the returned future's type"));
  };
  async._microtaskLoop = function _microtaskLoop() {
    for (let entry = async._nextCallback; entry != null; entry = async._nextCallback) {
      async._lastPriorityCallback = null;
      let next = entry.next;
      async._nextCallback = next;
      if (next == null) async._lastCallback = null;
      entry.callback();
    }
  };
  async._startMicrotaskLoop = function _startMicrotaskLoop() {
    async._isInCallbackLoop = true;
    try {
      async._microtaskLoop();
    } finally {
      async._lastPriorityCallback = null;
      async._isInCallbackLoop = false;
      if (async._nextCallback != null) {
        async._AsyncRun._scheduleImmediate(C[113] || CT.C113);
      }
    }
  };
  async._scheduleAsyncCallback = function _scheduleAsyncCallback(callback) {
    if (callback == null) dart.nullFailed(I[82], 63, 44, "callback");
    let newEntry = new async._AsyncCallbackEntry.new(callback);
    let lastCallback = async._lastCallback;
    if (lastCallback == null) {
      async._nextCallback = async._lastCallback = newEntry;
      if (!dart.test(async._isInCallbackLoop)) {
        async._AsyncRun._scheduleImmediate(C[113] || CT.C113);
      }
    } else {
      lastCallback.next = newEntry;
      async._lastCallback = newEntry;
    }
  };
  async._schedulePriorityAsyncCallback = function _schedulePriorityAsyncCallback(callback) {
    if (callback == null) dart.nullFailed(I[82], 83, 52, "callback");
    if (async._nextCallback == null) {
      async._scheduleAsyncCallback(callback);
      async._lastPriorityCallback = async._lastCallback;
      return;
    }
    let entry = new async._AsyncCallbackEntry.new(callback);
    let lastPriorityCallback = async._lastPriorityCallback;
    if (lastPriorityCallback == null) {
      entry.next = async._nextCallback;
      async._nextCallback = async._lastPriorityCallback = entry;
    } else {
      let next = lastPriorityCallback.next;
      entry.next = next;
      lastPriorityCallback.next = entry;
      async._lastPriorityCallback = entry;
      if (next == null) {
        async._lastCallback = entry;
      }
    }
  };
  async.scheduleMicrotask = function scheduleMicrotask(callback) {
    if (callback == null) dart.nullFailed(I[82], 129, 40, "callback");
    let currentZone = async.Zone._current;
    if (async._rootZone == currentZone) {
      async._rootScheduleMicrotask(null, null, async._rootZone, callback);
      return;
    }
    let implementation = currentZone[_scheduleMicrotask];
    if (async._rootZone == implementation.zone && dart.test(async._rootZone.inSameErrorZone(currentZone))) {
      async._rootScheduleMicrotask(null, null, currentZone, currentZone.registerCallback(T$.void(), callback));
      return;
    }
    async.Zone.current.scheduleMicrotask(async.Zone.current.bindCallbackGuarded(callback));
  };
  async._runGuarded = function _runGuarded(notificationHandler) {
    if (notificationHandler == null) return;
    try {
      notificationHandler();
    } catch (t$36$35e) {
      let e = dart.getThrown(t$36$35e);
      let s = dart.stackTrace(t$36$35e);
      if (T$.Object()[_is](e)) {
        async.Zone.current.handleUncaughtError(e, s);
      } else
        throw t$36$35e;
    }
  };
  async._nullDataHandler = function _nullDataHandler(value) {
  };
  async._nullErrorHandler = function _nullErrorHandler(error, stackTrace) {
    if (error == null) dart.nullFailed(I[77], 520, 31, "error");
    if (stackTrace == null) dart.nullFailed(I[77], 520, 49, "stackTrace");
    async.Zone.current.handleUncaughtError(error, stackTrace);
  };
  async._nullDoneHandler = function _nullDoneHandler() {
  };
  async._runUserCode = function _runUserCode(T, userCode, onSuccess, onError) {
    if (userCode == null) dart.nullFailed(I[83], 8, 19, "userCode");
    if (onSuccess == null) dart.nullFailed(I[83], 8, 31, "onSuccess");
    if (onError == null) dart.nullFailed(I[83], 9, 5, "onError");
    try {
      onSuccess(userCode());
    } catch (t$36$35e) {
      let e = dart.getThrown(t$36$35e);
      let s = dart.stackTrace(t$36$35e);
      if (T$.Object()[_is](e)) {
        let replacement = async.Zone.current.errorCallback(e, s);
        if (replacement == null) {
          onError(e, s);
        } else {
          let error = replacement.error;
          let stackTrace = replacement.stackTrace;
          onError(error, stackTrace);
        }
      } else
        throw t$36$35e;
    }
  };
  async._cancelAndError = function _cancelAndError(subscription, future, error, stackTrace) {
    if (subscription == null) dart.nullFailed(I[83], 26, 41, "subscription");
    if (future == null) dart.nullFailed(I[83], 26, 63, "future");
    if (error == null) dart.nullFailed(I[83], 27, 12, "error");
    if (stackTrace == null) dart.nullFailed(I[83], 27, 30, "stackTrace");
    let cancelFuture = subscription.cancel();
    if (cancelFuture != null && cancelFuture != async.Future._nullFuture) {
      cancelFuture.whenComplete(dart.fn(() => future[_completeError](error, stackTrace), T$.VoidTovoid()));
    } else {
      future[_completeError](error, stackTrace);
    }
  };
  async._cancelAndErrorWithReplacement = function _cancelAndErrorWithReplacement(subscription, future, error, stackTrace) {
    if (subscription == null) dart.nullFailed(I[83], 36, 56, "subscription");
    if (future == null) dart.nullFailed(I[83], 37, 13, "future");
    if (error == null) dart.nullFailed(I[83], 37, 28, "error");
    if (stackTrace == null) dart.nullFailed(I[83], 37, 46, "stackTrace");
    let replacement = async.Zone.current.errorCallback(error, stackTrace);
    if (replacement != null) {
      error = replacement.error;
      stackTrace = replacement.stackTrace;
    }
    async._cancelAndError(subscription, future, error, stackTrace);
  };
  async._cancelAndErrorClosure = function _cancelAndErrorClosure(subscription, future) {
    if (subscription == null) dart.nullFailed(I[83], 48, 24, "subscription");
    if (future == null) dart.nullFailed(I[83], 48, 46, "future");
    return dart.fn((error, stackTrace) => {
      if (error == null) dart.nullFailed(I[83], 49, 18, "error");
      if (stackTrace == null) dart.nullFailed(I[83], 49, 36, "stackTrace");
      async._cancelAndError(subscription, future, error, stackTrace);
    }, T$.ObjectAndStackTraceTovoid());
  };
  async._cancelAndValue = function _cancelAndValue(subscription, future, value) {
    if (subscription == null) dart.nullFailed(I[83], 56, 41, "subscription");
    if (future == null) dart.nullFailed(I[83], 56, 63, "future");
    let cancelFuture = subscription.cancel();
    if (cancelFuture != null && cancelFuture != async.Future._nullFuture) {
      cancelFuture.whenComplete(dart.fn(() => future[_complete](value), T$.VoidTovoid()));
    } else {
      future[_complete](value);
    }
  };
  async._addErrorWithReplacement = function _addErrorWithReplacement(sink, error, stackTrace) {
    if (sink == null) dart.nullFailed(I[83], 170, 16, "sink");
    if (error == null) dart.nullFailed(I[83], 170, 29, "error");
    if (stackTrace == null) dart.nullFailed(I[83], 170, 47, "stackTrace");
    let replacement = async.Zone.current.errorCallback(error, stackTrace);
    if (replacement != null) {
      error = replacement.error;
      stackTrace = replacement.stackTrace;
    }
    sink[_addError](error, stackTrace);
  };
  async._rootHandleUncaughtError = function _rootHandleUncaughtError(self, parent, zone, error, stackTrace) {
    if (zone == null) dart.nullFailed(I[86], 1379, 70, "zone");
    if (error == null) dart.nullFailed(I[86], 1380, 12, "error");
    if (stackTrace == null) dart.nullFailed(I[86], 1380, 30, "stackTrace");
    async._rootHandleError(error, stackTrace);
  };
  async._rootHandleError = function _rootHandleError(error, stackTrace) {
    if (error == null) dart.nullFailed(I[86], 1384, 30, "error");
    if (stackTrace == null) dart.nullFailed(I[86], 1384, 48, "stackTrace");
    async._schedulePriorityAsyncCallback(dart.fn(() => {
      core.Error.throwWithStackTrace(error, stackTrace);
      dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
    }, T$.VoidTovoid()));
  };
  async._rootRun = function _rootRun(R, self, parent, zone, f) {
    if (zone == null) dart.nullFailed(I[86], 1390, 54, "zone");
    if (f == null) dart.nullFailed(I[86], 1390, 62, "f");
    if (async.Zone._current == zone) return f();
    if (!T$1._Zone()[_is](zone)) {
      dart.throw(new core.ArgumentError.value(zone, "zone", "Can only run in platform zones"));
    }
    let old = async.Zone._enter(zone);
    try {
      return f();
    } finally {
      async.Zone._leave(old);
    }
  };
  async._rootRunUnary = function _rootRunUnary(R, T, self, parent, zone, f, arg) {
    if (zone == null) dart.nullFailed(I[86], 1406, 44, "zone");
    if (f == null) dart.nullFailed(I[86], 1406, 52, "f");
    if (async.Zone._current == zone) return f(arg);
    if (!T$1._Zone()[_is](zone)) {
      dart.throw(new core.ArgumentError.value(zone, "zone", "Can only run in platform zones"));
    }
    let old = async.Zone._enter(zone);
    try {
      return f(arg);
    } finally {
      async.Zone._leave(old);
    }
  };
  async._rootRunBinary = function _rootRunBinary(R, T1, T2, self, parent, zone, f, arg1, arg2) {
    if (zone == null) dart.nullFailed(I[86], 1421, 68, "zone");
    if (f == null) dart.nullFailed(I[86], 1422, 7, "f");
    if (async.Zone._current == zone) return f(arg1, arg2);
    if (!T$1._Zone()[_is](zone)) {
      dart.throw(new core.ArgumentError.value(zone, "zone", "Can only run in platform zones"));
    }
    let old = async.Zone._enter(zone);
    try {
      return f(arg1, arg2);
    } finally {
      async.Zone._leave(old);
    }
  };
  async._rootRegisterCallback = function _rootRegisterCallback(R, self, parent, zone, f) {
    if (self == null) dart.nullFailed(I[86], 1438, 10, "self");
    if (parent == null) dart.nullFailed(I[86], 1438, 29, "parent");
    if (zone == null) dart.nullFailed(I[86], 1438, 42, "zone");
    if (f == null) dart.nullFailed(I[86], 1438, 50, "f");
    return f;
  };
  async._rootRegisterUnaryCallback = function _rootRegisterUnaryCallback(R, T, self, parent, zone, f) {
    if (self == null) dart.nullFailed(I[86], 1443, 10, "self");
    if (parent == null) dart.nullFailed(I[86], 1443, 29, "parent");
    if (zone == null) dart.nullFailed(I[86], 1443, 42, "zone");
    if (f == null) dart.nullFailed(I[86], 1443, 50, "f");
    return f;
  };
  async._rootRegisterBinaryCallback = function _rootRegisterBinaryCallback(R, T1, T2, self, parent, zone, f) {
    if (self == null) dart.nullFailed(I[86], 1448, 10, "self");
    if (parent == null) dart.nullFailed(I[86], 1448, 29, "parent");
    if (zone == null) dart.nullFailed(I[86], 1448, 42, "zone");
    if (f == null) dart.nullFailed(I[86], 1448, 50, "f");
    return f;
  };
  async._rootErrorCallback = function _rootErrorCallback(self, parent, zone, error, stackTrace) {
    if (self == null) dart.nullFailed(I[86], 1452, 37, "self");
    if (parent == null) dart.nullFailed(I[86], 1452, 56, "parent");
    if (zone == null) dart.nullFailed(I[86], 1452, 69, "zone");
    if (error == null) dart.nullFailed(I[86], 1453, 16, "error");
    return null;
  };
  async._rootScheduleMicrotask = function _rootScheduleMicrotask(self, parent, zone, f) {
    if (zone == null) dart.nullFailed(I[86], 1457, 44, "zone");
    if (f == null) dart.nullFailed(I[86], 1457, 55, "f");
    if (async._rootZone != zone) {
      let hasErrorHandler = !dart.test(async._rootZone.inSameErrorZone(zone));
      if (hasErrorHandler) {
        f = zone.bindCallbackGuarded(f);
      } else {
        f = zone.bindCallback(T$.void(), f);
      }
    }
    async._scheduleAsyncCallback(f);
  };
  async._rootCreateTimer = function _rootCreateTimer(self, parent, zone, duration, callback) {
    if (self == null) dart.nullFailed(I[86], 1469, 29, "self");
    if (parent == null) dart.nullFailed(I[86], 1469, 48, "parent");
    if (zone == null) dart.nullFailed(I[86], 1469, 61, "zone");
    if (duration == null) dart.nullFailed(I[86], 1470, 14, "duration");
    if (callback == null) dart.nullFailed(I[86], 1470, 40, "callback");
    if (async._rootZone != zone) {
      callback = zone.bindCallback(T$.void(), callback);
    }
    return async.Timer._createTimer(duration, callback);
  };
  async._rootCreatePeriodicTimer = function _rootCreatePeriodicTimer(self, parent, zone, duration, callback) {
    if (self == null) dart.nullFailed(I[86], 1477, 37, "self");
    if (parent == null) dart.nullFailed(I[86], 1477, 56, "parent");
    if (zone == null) dart.nullFailed(I[86], 1477, 69, "zone");
    if (duration == null) dart.nullFailed(I[86], 1478, 14, "duration");
    if (callback == null) dart.nullFailed(I[86], 1478, 29, "callback");
    if (async._rootZone != zone) {
      callback = zone.bindUnaryCallback(T$.void(), T$1.Timer(), callback);
    }
    return async.Timer._createPeriodicTimer(duration, callback);
  };
  async._rootPrint = function _rootPrint(self, parent, zone, line) {
    if (self == null) dart.nullFailed(I[86], 1485, 22, "self");
    if (parent == null) dart.nullFailed(I[86], 1485, 41, "parent");
    if (zone == null) dart.nullFailed(I[86], 1485, 54, "zone");
    if (line == null) dart.nullFailed(I[86], 1485, 67, "line");
    _internal.printToConsole(line);
  };
  async._printToZone = function _printToZone(line) {
    if (line == null) dart.nullFailed(I[86], 1489, 26, "line");
    async.Zone.current.print(line);
  };
  async._rootFork = function _rootFork(self, parent, zone, specification, zoneValues) {
    if (zone == null) dart.nullFailed(I[86], 1493, 55, "zone");
    if (!T$1._Zone()[_is](zone)) {
      dart.throw(new core.ArgumentError.value(zone, "zone", "Can only fork a platform zone"));
    }
    _internal.printToZone = C[114] || CT.C114;
    if (specification == null) {
      specification = C[115] || CT.C115;
    } else if (!T$1._ZoneSpecification()[_is](specification)) {
      specification = async.ZoneSpecification.from(specification);
    }
    let valueMap = null;
    if (zoneValues == null) {
      valueMap = zone[_map$3];
    } else {
      valueMap = G.HashMapOfObjectN$ObjectN().from(zoneValues);
    }
    if (specification == null) dart.throw("unreachable");
    return new async._CustomZone.new(zone, specification, valueMap);
  };
  async.runZoned = function runZoned(R, body, opts) {
    if (body == null) dart.nullFailed(I[86], 1744, 17, "body");
    let zoneValues = opts && 'zoneValues' in opts ? opts.zoneValues : null;
    let zoneSpecification = opts && 'zoneSpecification' in opts ? opts.zoneSpecification : null;
    let onError = opts && 'onError' in opts ? opts.onError : null;
    _internal.checkNotNullable(R[_eval]("0()"), body, "body");
    if (onError != null) {
      if (!T$.ObjectAndStackTraceTovoid()[_is](onError)) {
        if (T$.ObjectTovoid()[_is](onError)) {
          let originalOnError = onError;
          onError = dart.fn((error, stack) => {
            if (error == null) dart.nullFailed(I[86], 1754, 27, "error");
            if (stack == null) dart.nullFailed(I[86], 1754, 45, "stack");
            return originalOnError(error);
          }, T$.ObjectAndStackTraceTovoid());
        } else {
          dart.throw(new core.ArgumentError.value(onError, "onError", "Must be Function(Object) or Function(Object, StackTrace)"));
        }
      }
      return R[_as](async.runZonedGuarded(R, body, onError, {zoneSpecification: zoneSpecification, zoneValues: zoneValues}));
    }
    return async._runZoned(R, body, zoneValues, zoneSpecification);
  };
  async.runZonedGuarded = function runZonedGuarded(R, body, onError, opts) {
    if (body == null) dart.nullFailed(I[86], 1790, 25, "body");
    if (onError == null) dart.nullFailed(I[86], 1790, 38, "onError");
    let zoneValues = opts && 'zoneValues' in opts ? opts.zoneValues : null;
    let zoneSpecification = opts && 'zoneSpecification' in opts ? opts.zoneSpecification : null;
    _internal.checkNotNullable(R[_eval]("0()"), body, "body");
    _internal.checkNotNullable(T$.ObjectAndStackTraceTovoid(), onError, "onError");
    let parentZone = async.Zone._current;
    let errorHandler = dart.fn((self, parent, zone, error, stackTrace) => {
      if (self == null) dart.nullFailed(I[86], 1795, 51, "self");
      if (parent == null) dart.nullFailed(I[86], 1795, 70, "parent");
      if (zone == null) dart.nullFailed(I[86], 1796, 12, "zone");
      if (error == null) dart.nullFailed(I[86], 1796, 25, "error");
      if (stackTrace == null) dart.nullFailed(I[86], 1796, 43, "stackTrace");
      try {
        parentZone.runBinary(T$.void(), T$.Object(), T$.StackTrace(), onError, error, stackTrace);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          if (core.identical(e, error)) {
            parent.handleUncaughtError(zone, error, stackTrace);
          } else {
            parent.handleUncaughtError(zone, e, s);
          }
        } else
          throw t$36$35e;
      }
    }, T$1.ZoneAndZoneDelegateAndZone__Tovoid$2());
    if (zoneSpecification == null) {
      zoneSpecification = new async._ZoneSpecification.new({handleUncaughtError: errorHandler});
    } else {
      zoneSpecification = async.ZoneSpecification.from(zoneSpecification, {handleUncaughtError: errorHandler});
    }
    try {
      return async._runZoned(R, body, zoneValues, zoneSpecification);
    } catch (t$36$35e) {
      let error = dart.getThrown(t$36$35e);
      let stackTrace = dart.stackTrace(t$36$35e);
      if (T$.Object()[_is](error)) {
        onError(error, stackTrace);
      } else
        throw t$36$35e;
    }
    return null;
  };
  async._runZoned = function _runZoned(R, body, zoneValues, specification) {
    if (body == null) dart.nullFailed(I[86], 1822, 18, "body");
    return async.Zone.current.fork({specification: specification, zoneValues: zoneValues}).run(R, body);
  };
  dart.defineLazy(async, {
    /*async._nextCallback*/get _nextCallback() {
      return null;
    },
    set _nextCallback(value) {},
    /*async._lastCallback*/get _lastCallback() {
      return null;
    },
    set _lastCallback(value) {},
    /*async._lastPriorityCallback*/get _lastPriorityCallback() {
      return null;
    },
    set _lastPriorityCallback(value) {},
    /*async._isInCallbackLoop*/get _isInCallbackLoop() {
      return false;
    },
    set _isInCallbackLoop(value) {
      if (value == null) dart.nullFailed(I[82], 32, 6, "_isInCallbackLoop");
    },
    /*async._rootZone*/get _rootZone() {
      return C[84] || CT.C84;
    }
  }, false);
  var _map$4 = dart.privateName(collection, "_HashSet._map");
  var _modifications$2 = dart.privateName(collection, "_HashSet._modifications");
  var _keyMap$ = dart.privateName(collection, "_keyMap");
  var _map$5 = dart.privateName(collection, "_map");
  var _modifications$3 = dart.privateName(collection, "_modifications");
  var _newSet = dart.privateName(collection, "_newSet");
  var _newSimilarSet = dart.privateName(collection, "_newSimilarSet");
  collection.SetBase$ = dart.generic(E => {
    var __t$SetBaseOfE = () => (__t$SetBaseOfE = dart.constFn(E[_eval]("collection|SetBase<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$SetOfE = () => (__t$SetOfE = dart.constFn(E[_eval]("core|Set<0>")))();
    var __t$EAndEToE = () => (__t$EAndEToE = dart.constFn(E[_eval]("0(0,0)")))();
    var __t$VoidToNE = () => (__t$VoidToNE = dart.constFn(E[_eval]("0()?")))();
    var __t$ObjectNToIterableOfE = () => (__t$ObjectNToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|Object?)")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~(core|bool(0))")))();
    var __t$ObjectNToSetOfE = () => (__t$ObjectNToSetOfE = dart.constFn(E[_eval]("core|Set<0>(core|Object?)")))();
    var __t$SetOfObjectNToSetOfE = () => (__t$SetOfObjectNToSetOfE = dart.constFn(E[_eval]("core|Set<0>(core|Set<core|Object?>)")))();
    var __t$__ToListOfE = () => (__t$__ToListOfE = dart.constFn(E[_eval]("core|List<0>({growable:core|bool})")))();
    var __t$FnToIterableOfT = () => (__t$FnToIterableOfT = dart.constFn(E[_eval]("core|Iterable<0^>(0^(0))<core|Object?>")))();
    var __t$FnToIterableOfE = () => (__t$FnToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|bool(0))")))();
    var __t$FnToIterableOfT$ = () => (__t$FnToIterableOfT$ = dart.constFn(E[_eval]("core|Iterable<0^>(core|Iterable<0^>(0))<core|Object?>")))();
    var __t$FnTovoid$ = () => (__t$FnTovoid$ = dart.constFn(E[_eval]("~(~(0))")))();
    var __t$ObjectNToE = () => (__t$ObjectNToE = dart.constFn(E[_eval]("0(core|Object?)")))();
    var __t$TAndFnToT = () => (__t$TAndFnToT = dart.constFn(E[_eval]("0^(0^,0^(0^,0))<core|Object?>")))();
    var __t$FnTobool = () => (__t$FnTobool = dart.constFn(E[_eval]("core|bool(core|bool(0))")))();
    var __t$intToIterableOfE = () => (__t$intToIterableOfE = dart.constFn(E[_eval]("core|Iterable<0>(core|int)")))();
    var __t$Fn__ToE = () => (__t$Fn__ToE = dart.constFn(E[_eval]("0(core|bool(0){orElse:core|Object?})")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$FollowedByIterableOfE = () => (__t$FollowedByIterableOfE = dart.constFn(_internal.FollowedByIterable$(E)))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(core.List$(E)))();
    var __t$WhereIterableOfE = () => (__t$WhereIterableOfE = dart.constFn(_internal.WhereIterable$(E)))();
    var __t$TakeIterableOfE = () => (__t$TakeIterableOfE = dart.constFn(_internal.TakeIterable$(E)))();
    var __t$TakeWhileIterableOfE = () => (__t$TakeWhileIterableOfE = dart.constFn(_internal.TakeWhileIterable$(E)))();
    var __t$SkipIterableOfE = () => (__t$SkipIterableOfE = dart.constFn(_internal.SkipIterable$(E)))();
    var __t$SkipWhileIterableOfE = () => (__t$SkipWhileIterableOfE = dart.constFn(_internal.SkipWhileIterable$(E)))();
    class SetBase extends core.Object {
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
      get isEmpty() {
        return this.length === 0;
      }
      get isNotEmpty() {
        return this.length !== 0;
      }
      cast(R) {
        return core.Set.castFrom(E, R, this);
      }
      followedBy(other) {
        __t$IterableOfE()[_as](other);
        if (other == null) dart.nullFailed(I[88], 48, 38, "other");
        return __t$FollowedByIterableOfE().firstEfficient(this, other);
      }
      whereType(T) {
        return new (_internal.WhereTypeIterable$(T)).new(this);
      }
      clear() {
        this.removeAll(this.toList());
      }
      addAll(elements) {
        __t$IterableOfE()[_as](elements);
        if (elements == null) dart.nullFailed(I[88], 57, 27, "elements");
        for (let element of elements)
          this.add(element);
      }
      removeAll(elements) {
        if (elements == null) dart.nullFailed(I[88], 61, 36, "elements");
        for (let element of elements)
          this.remove(element);
      }
      retainAll(elements) {
        if (elements == null) dart.nullFailed(I[88], 65, 36, "elements");
        let toRemove = this.toSet();
        for (let o of elements) {
          toRemove.remove(o);
        }
        this.removeAll(toRemove);
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[88], 75, 25, "test");
        let toRemove = G.JSArrayOfObjectN().of([]);
        for (let element of this) {
          if (dart.test(test(element))) toRemove[$add](element);
        }
        this.removeAll(toRemove);
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[88], 83, 25, "test");
        let toRemove = G.JSArrayOfObjectN().of([]);
        for (let element of this) {
          if (!dart.test(test(element))) toRemove[$add](element);
        }
        this.removeAll(toRemove);
      }
      containsAll(other) {
        if (other == null) dart.nullFailed(I[88], 91, 38, "other");
        for (let o of other) {
          if (!dart.test(this.contains(o))) return false;
        }
        return true;
      }
      union(other) {
        let t$36144;
        __t$SetOfE()[_as](other);
        if (other == null) dart.nullFailed(I[88], 98, 23, "other");
        t$36144 = this.toSet();
        return (() => {
          t$36144.addAll(other);
          return t$36144;
        })();
      }
      intersection(other) {
        if (other == null) dart.nullFailed(I[88], 102, 36, "other");
        let result = this.toSet();
        for (let element of this) {
          if (!dart.test(other.contains(element))) result.remove(element);
        }
        return result;
      }
      difference(other) {
        if (other == null) dart.nullFailed(I[88], 110, 34, "other");
        let result = this.toSet();
        for (let element of this) {
          if (dart.test(other.contains(element))) result.remove(element);
        }
        return result;
      }
      toList(opts) {
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[88], 118, 24, "growable");
        return __t$ListOfE().of(this, {growable: growable});
      }
      map(T, f) {
        if (f == null) dart.nullFailed(I[88], 121, 24, "f");
        return new (_internal.EfficientLengthMappedIterable$(E, T)).new(this, f);
      }
      get single() {
        if (dart.notNull(this.length) > 1) dart.throw(_internal.IterableElementError.tooMany());
        let it = this.iterator;
        if (!dart.test(it.moveNext())) dart.throw(_internal.IterableElementError.noElement());
        let result = it.current;
        return result;
      }
      toString() {
        return collection.SetBase.setToString(this);
      }
      where(f) {
        if (f == null) dart.nullFailed(I[88], 137, 26, "f");
        return new (__t$WhereIterableOfE()).new(this, f);
      }
      expand(T, f) {
        if (f == null) dart.nullFailed(I[88], 139, 37, "f");
        return new (_internal.ExpandIterable$(E, T)).new(this, f);
      }
      forEach(f) {
        if (f == null) dart.nullFailed(I[88], 142, 21, "f");
        for (let element of this)
          f(element);
      }
      reduce(combine) {
        __t$EAndEToE()[_as](combine);
        if (combine == null) dart.nullFailed(I[88], 146, 14, "combine");
        let iterator = this.iterator;
        if (!dart.test(iterator.moveNext())) {
          dart.throw(_internal.IterableElementError.noElement());
        }
        let value = iterator.current;
        while (dart.test(iterator.moveNext())) {
          value = combine(value, iterator.current);
        }
        return value;
      }
      fold(T, initialValue, combine) {
        if (combine == null) dart.nullFailed(I[88], 158, 31, "combine");
        let value = initialValue;
        for (let element of this)
          value = combine(value, element);
        return value;
      }
      every(f) {
        if (f == null) dart.nullFailed(I[88], 164, 19, "f");
        for (let element of this) {
          if (!dart.test(f(element))) return false;
        }
        return true;
      }
      join(separator = "") {
        let t$36144;
        if (separator == null) dart.nullFailed(I[88], 171, 23, "separator");
        let iterator = this.iterator;
        if (!dart.test(iterator.moveNext())) return "";
        let first = dart.toString(iterator.current);
        if (!dart.test(iterator.moveNext())) return first;
        let buffer = new core.StringBuffer.new(first);
        if (separator == null || separator[$isEmpty]) {
          do {
            buffer.write(iterator.current);
          } while (dart.test(iterator.moveNext()));
        } else {
          do {
            t$36144 = buffer;
            (() => {
              t$36144.write(separator);
              t$36144.write(iterator.current);
              return t$36144;
            })();
          } while (dart.test(iterator.moveNext()));
        }
        return dart.toString(buffer);
      }
      any(test) {
        if (test == null) dart.nullFailed(I[88], 192, 17, "test");
        for (let element of this) {
          if (dart.test(test(element))) return true;
        }
        return false;
      }
      take(n) {
        if (n == null) dart.nullFailed(I[88], 199, 24, "n");
        return __t$TakeIterableOfE().new(this, n);
      }
      takeWhile(test) {
        if (test == null) dart.nullFailed(I[88], 203, 30, "test");
        return new (__t$TakeWhileIterableOfE()).new(this, test);
      }
      skip(n) {
        if (n == null) dart.nullFailed(I[88], 207, 24, "n");
        return __t$SkipIterableOfE().new(this, n);
      }
      skipWhile(test) {
        if (test == null) dart.nullFailed(I[88], 211, 30, "test");
        return new (__t$SkipWhileIterableOfE()).new(this, test);
      }
      get first() {
        let it = this.iterator;
        if (!dart.test(it.moveNext())) {
          dart.throw(_internal.IterableElementError.noElement());
        }
        return it.current;
      }
      get last() {
        let it = this.iterator;
        if (!dart.test(it.moveNext())) {
          dart.throw(_internal.IterableElementError.noElement());
        }
        let result = null;
        do {
          result = it.current;
        } while (dart.test(it.moveNext()));
        return result;
      }
      firstWhere(test, opts) {
        if (test == null) dart.nullFailed(I[88], 235, 21, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        for (let element of this) {
          if (dart.test(test(element))) return element;
        }
        if (orElse != null) return orElse();
        dart.throw(_internal.IterableElementError.noElement());
      }
      lastWhere(test, opts) {
        if (test == null) dart.nullFailed(I[88], 243, 20, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let iterator = this.iterator;
        let result = null;
        do {
          if (!dart.test(iterator.moveNext())) {
            if (orElse != null) return orElse();
            dart.throw(_internal.IterableElementError.noElement());
          }
          result = iterator.current;
        } while (!dart.test(test(result)));
        while (dart.test(iterator.moveNext())) {
          let current = iterator.current;
          if (dart.test(test(current))) result = current;
        }
        return result;
      }
      singleWhere(test, opts) {
        if (test == null) dart.nullFailed(I[88], 260, 22, "test");
        let orElse = opts && 'orElse' in opts ? opts.orElse : null;
        __t$VoidToNE()[_as](orElse);
        let iterator = this.iterator;
        let result = null;
        do {
          if (!dart.test(iterator.moveNext())) {
            if (orElse != null) return orElse();
            dart.throw(_internal.IterableElementError.noElement());
          }
          result = iterator.current;
        } while (!dart.test(test(result)));
        while (dart.test(iterator.moveNext())) {
          if (dart.test(test(iterator.current))) dart.throw(_internal.IterableElementError.tooMany());
        }
        return result;
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[88], 276, 19, "index");
        core.RangeError.checkNotNegative(index, "index");
        let iterator = this.iterator;
        let skipCount = index;
        while (dart.test(iterator.moveNext())) {
          if (skipCount === 0) return iterator.current;
          skipCount = dart.notNull(skipCount) - 1;
        }
        dart.throw(new core.IndexError.withLength(index, dart.notNull(index) - dart.notNull(skipCount), {indexable: this, name: "index"}));
      }
      static setToString(set) {
        if (set == null) dart.nullFailed(I[88], 296, 33, "set");
        return core.Iterable.iterableToFullString(set, "{", "}");
      }
    }
    (SetBase.new = function() {
      this.$ti = this.$ti || __t$SetBaseOfE();
      ;
    }).prototype = SetBase.prototype;
    dart.addRtiResources(SetBase, ["collection|SetBase", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(SetBase, () => dart.global.Object.setPrototypeOf({
      cast: T$0.VoidToSetOfR(),
      [$cast]: T$0.VoidToSetOfR(),
      followedBy: __t$ObjectNToIterableOfE(),
      [$followedBy]: __t$ObjectNToIterableOfE(),
      whereType: T$.VoidToIterableOfT(),
      [$whereType]: T$.VoidToIterableOfT(),
      clear: T$.VoidTovoid(),
      addAll: T$.ObjectNTovoid(),
      removeAll: T$0.IterableOfObjectNTovoid(),
      retainAll: T$0.IterableOfObjectNTovoid(),
      removeWhere: __t$FnTovoid(),
      retainWhere: __t$FnTovoid(),
      containsAll: T$0.IterableOfObjectNTobool(),
      union: __t$ObjectNToSetOfE(),
      intersection: __t$SetOfObjectNToSetOfE(),
      difference: __t$SetOfObjectNToSetOfE(),
      toList: __t$__ToListOfE(),
      [$toList]: __t$__ToListOfE(),
      map: __t$FnToIterableOfT(),
      [$map]: __t$FnToIterableOfT(),
      where: __t$FnToIterableOfE(),
      [$where]: __t$FnToIterableOfE(),
      expand: __t$FnToIterableOfT$(),
      [$expand]: __t$FnToIterableOfT$(),
      forEach: __t$FnTovoid$(),
      [$forEach]: __t$FnTovoid$(),
      reduce: __t$ObjectNToE(),
      [$reduce]: __t$ObjectNToE(),
      fold: __t$TAndFnToT(),
      [$fold]: __t$TAndFnToT(),
      every: __t$FnTobool(),
      [$every]: __t$FnTobool(),
      join: T$.StringToString$1(),
      [$join]: T$.StringToString$1(),
      any: __t$FnTobool(),
      [$any]: __t$FnTobool(),
      take: __t$intToIterableOfE(),
      [$take]: __t$intToIterableOfE(),
      takeWhile: __t$FnToIterableOfE(),
      [$takeWhile]: __t$FnToIterableOfE(),
      skip: __t$intToIterableOfE(),
      [$skip]: __t$intToIterableOfE(),
      skipWhile: __t$FnToIterableOfE(),
      [$skipWhile]: __t$FnToIterableOfE(),
      firstWhere: __t$Fn__ToE(),
      [$firstWhere]: __t$Fn__ToE(),
      lastWhere: __t$Fn__ToE(),
      [$lastWhere]: __t$Fn__ToE(),
      singleWhere: __t$Fn__ToE(),
      [$singleWhere]: __t$Fn__ToE(),
      elementAt: __t$intToE(),
      [$elementAt]: __t$intToE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(SetBase))));
    dart.setMethodsDefaultTypeArgSignature(SetBase, () => dart.global.Object.setPrototypeOf({
      cast: [T$.dynamic()],
      [$cast]: [T$.dynamic()],
      whereType: [T$.dynamic()],
      [$whereType]: [T$.dynamic()],
      map: [T$.dynamic()],
      [$map]: [T$.dynamic()],
      expand: [T$.dynamic()],
      [$expand]: [T$.dynamic()],
      fold: [T$.dynamic()],
      [$fold]: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(SetBase))));
    dart.setStaticMethodSignature(SetBase, () => ['setToString']);
    dart.setGetterSignature(SetBase, () => dart.global.Object.setPrototypeOf({
      isEmpty: T$.bool(),
      [$isEmpty]: T$.bool(),
      isNotEmpty: T$.bool(),
      [$isNotEmpty]: T$.bool(),
      single: E,
      [$single]: E,
      first: E,
      [$first]: E,
      last: E,
      [$last]: E
    }, dart.getGetters(dart.global.Object.getPrototypeOf(SetBase))));
    dart.setLibraryUri(SetBase, I[24]);
    dart.defineExtensionMethods(SetBase, [
      'cast',
      'followedBy',
      'whereType',
      'toList',
      'map',
      'toString',
      'where',
      'expand',
      'forEach',
      'reduce',
      'fold',
      'every',
      'join',
      'any',
      'take',
      'takeWhile',
      'skip',
      'skipWhile',
      'firstWhere',
      'lastWhere',
      'singleWhere',
      'elementAt'
    ]);
    dart.defineExtensionAccessors(SetBase, [
      'isEmpty',
      'isNotEmpty',
      'single',
      'first',
      'last'
    ]);
    return SetBase;
  });
  collection.SetBase = collection.SetBase$();
  collection._SetBase$ = dart.generic(E => {
    var __t$_SetBaseOfE = () => (__t$_SetBaseOfE = dart.constFn(E[_eval]("collection|_SetBase<0>")))();
    var __t$VoidToSetOfE = () => (__t$VoidToSetOfE = dart.constFn(E[_eval]("core|Set<0>()")))();
    var __t$SetBaseOfE = () => (__t$SetBaseOfE = dart.constFn(collection.SetBase$(E)))();
    class _SetBase extends __t$SetBaseOfE() {
      cast(R) {
        return core.Set.castFrom(E, R, this, {newSet: dart.bind(this, _newSimilarSet)});
      }
      difference(other) {
        if (other == null) dart.nullFailed(I[88], 333, 34, "other");
        let result = this[_newSet]();
        for (let element of this) {
          if (!dart.test(other.contains(element))) result.add(element);
        }
        return result;
      }
      intersection(other) {
        if (other == null) dart.nullFailed(I[88], 341, 36, "other");
        let result = this[_newSet]();
        for (let element of this) {
          if (dart.test(other.contains(element))) result.add(element);
        }
        return result;
      }
      toSet() {
        let t$36144;
        t$36144 = this[_newSet]();
        return (() => {
          t$36144.addAll(this);
          return t$36144;
        })();
      }
    }
    (_SetBase.new = function() {
      this.$ti = this.$ti || __t$_SetBaseOfE();
      dart.global.Object.getPrototypeOf(_SetBase).new.call(this);
      ;
    }).prototype = _SetBase.prototype;
    dart.addRtiResources(_SetBase, ["collection|_SetBase"]);
    dart.setMethodSignature(_SetBase, () => dart.global.Object.setPrototypeOf({
      toSet: __t$VoidToSetOfE(),
      [$toSet]: __t$VoidToSetOfE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SetBase))));
    dart.setLibraryUri(_SetBase, I[24]);
    dart.defineExtensionMethods(_SetBase, ['cast', 'toSet']);
    return _SetBase;
  });
  collection._SetBase = collection._SetBase$();
  collection._InternalSet$ = dart.generic(E => {
    var __t$_InternalSetOfE = () => (__t$_InternalSetOfE = dart.constFn(E[_eval]("collection|_InternalSet<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$DartIteratorOfE = () => (__t$DartIteratorOfE = dart.constFn(_js_helper.DartIterator$(E)))();
    var __t$_SetBaseOfE = () => (__t$_SetBaseOfE = dart.constFn(collection._SetBase$(E)))();
    class _InternalSet extends __t$_SetBaseOfE() {
      get length() {
        return this[_map$5].size;
      }
      get isEmpty() {
        return this[_map$5].size == 0;
      }
      get isNotEmpty() {
        return this[_map$5].size != 0;
      }
      get iterator() {
        return new (__t$DartIteratorOfE()).new(this[Symbol.iterator]());
      }
      [Symbol.iterator]() {
        let self = this;
        let iterator = self[_map$5].values();
        let modifications = self[_modifications$3];
        return {
          next() {
            if (modifications != self[_modifications$3]) {
              throw new core.ConcurrentModificationError.new(self);
            }
            return iterator.next();
          }
        };
      }
    }
    (_InternalSet.new = function() {
      this.$ti = this.$ti || __t$_InternalSetOfE();
      dart.global.Object.getPrototypeOf(_InternalSet).new.call(this);
      ;
    }).prototype = _InternalSet.prototype;
    dart.addRtiResources(_InternalSet, ["collection|_InternalSet"]);
    dart.setMethodSignature(_InternalSet, () => dart.global.Object.setPrototypeOf({[Symbol.iterator]: T$.VoidTodynamic()}, dart.getMethods(dart.global.Object.getPrototypeOf(_InternalSet))));
    dart.setGetterSignature(_InternalSet, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int(),
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_InternalSet))));
    dart.setLibraryUri(_InternalSet, I[24]);
    dart.defineExtensionAccessors(_InternalSet, ['length', 'isEmpty', 'isNotEmpty', 'iterator']);
    return _InternalSet;
  });
  collection._InternalSet = collection._InternalSet$();
  collection._HashSet$ = dart.generic(E => {
    var __t$_HashSetOfE = () => (__t$_HashSetOfE = dart.constFn(E[_eval]("collection|_HashSet<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$VoidToSetOfE = () => (__t$VoidToSetOfE = dart.constFn(E[_eval]("core|Set<0>()")))();
    var __t$ObjectNToEN = () => (__t$ObjectNToEN = dart.constFn(E[_eval]("0?(core|Object?)")))();
    var __t$_HashSetOfE$ = () => (__t$_HashSetOfE$ = dart.constFn(collection._HashSet$(E)))();
    var __t$_InternalSetOfE = () => (__t$_InternalSetOfE = dart.constFn(collection._InternalSet$(E)))();
    class _HashSet extends __t$_InternalSetOfE() {
      get [_map$5]() {
        return this[_map$4];
      }
      set [_map$5](value) {
        super[_map$5] = value;
      }
      get [_modifications$3]() {
        return this[_modifications$2];
      }
      set [_modifications$3](value) {
        this[_modifications$2] = value;
      }
      static ['_#new#tearOff'](E) {
        return new (collection._HashSet$(E)).new();
      }
      [_newSet]() {
        return new (__t$_HashSetOfE$()).new();
      }
      [_newSimilarSet](R) {
        return new (collection._HashSet$(R)).new();
      }
      contains(key) {
        if (key == null) {
          key = null;
        } else if (key[$_equals] !== dart.identityEquals) {
          let k = key;
          let buckets = this[_keyMap$].get(dart.hashCode(k) & 0x3fffffff);
          if (buckets != null) {
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              k = buckets[i];
              if (dart.equals(k, key)) return true;
            }
          }
          return false;
        }
        return this[_map$5].has(key);
      }
      lookup(key) {
        if (key == null) return null;
        if (key[$_equals] !== dart.identityEquals) {
          let k = key;
          let buckets = this[_keyMap$].get(dart.hashCode(k) & 0x3fffffff);
          if (buckets != null) {
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              k = buckets[i];
              if (dart.equals(k, key)) return k;
            }
          }
          return null;
        }
        return this[_map$5].has(key) ? key : null;
      }
      add(key) {
        E[_as](key);
        let map = this[_map$5];
        if (key == null) {
          if (map.has(null)) return false;
          key = null;
        } else if (key[$_equals] !== dart.identityEquals) {
          let keyMap = this[_keyMap$];
          let k = key;
          let hash = dart.hashCode(k) & 0x3fffffff;
          let buckets = keyMap.get(hash);
          if (buckets == null) {
            keyMap.set(hash, [key]);
          } else {
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              k = buckets[i];
              if (dart.equals(k, key)) return false;
            }
            buckets.push(key);
          }
        } else if (map.has(key)) {
          return false;
        }
        map.add(key);
        this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
        return true;
      }
      addAll(objects) {
        __t$IterableOfE()[_as](objects);
        if (objects == null) dart.nullFailed(I[87], 244, 27, "objects");
        let map = this[_map$5];
        let length = map.size;
        for (let key of objects) {
          if (key == null) {
            key = null;
          } else if (key[$_equals] !== dart.identityEquals) {
            key = _js_helper.putLinkedMapKey(key, this[_keyMap$]);
          }
          map.add(key);
        }
        if (length !== map.size) {
          this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
        }
      }
      remove(key) {
        if (key == null) {
          key = null;
        } else if (key[$_equals] !== dart.identityEquals) {
          let k = key;
          let hash = dart.hashCode(k) & 0x3fffffff;
          let buckets = this[_keyMap$].get(hash);
          if (buckets == null) return false;
          for (let i = 0, n = buckets.length;;) {
            k = buckets[i];
            if (dart.equals(k, key)) {
              key = k;
              if (n === 1) {
                this[_keyMap$].delete(hash);
              } else {
                buckets.splice(i, 1);
              }
              break;
            }
            if ((i = i + 1) >= n) return false;
          }
        }
        let map = this[_map$5];
        if (map.delete(key)) {
          this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
          return true;
        }
        return false;
      }
      clear() {
        let map = this[_map$5];
        if (map.size > 0) {
          map.clear();
          this[_keyMap$].clear();
          this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
        }
      }
    }
    (_HashSet.new = function() {
      this[_map$4] = new Set();
      this[_keyMap$] = new Map();
      this[_modifications$2] = 0;
      this.$ti = this.$ti || __t$_HashSetOfE();
      dart.global.Object.getPrototypeOf(_HashSet).new.call(this);
      ;
    }).prototype = _HashSet.prototype;
    dart.addRtiResources(_HashSet, ["collection|_HashSet", "collection|HashSet", "collection|LinkedHashSet", "core|Set", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(_HashSet, () => dart.global.Object.setPrototypeOf({
      [_newSet]: __t$VoidToSetOfE(),
      [_newSimilarSet]: T$0.VoidToSetOfR(),
      contains: T$.ObjectNTobool(),
      [$contains]: T$.ObjectNTobool(),
      lookup: __t$ObjectNToEN(),
      add: T$.ObjectNTobool(),
      remove: T$.ObjectNTobool()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_HashSet))));
    dart.setMethodsDefaultTypeArgSignature(_HashSet, () => dart.global.Object.setPrototypeOf({[_newSimilarSet]: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_HashSet))));
    dart.setLibraryUri(_HashSet, I[24]);
    dart.setFieldSignature(_HashSet, () => dart.global.Object.setPrototypeOf({
      [_map$5]: {type: T$.dynamic(), isConst: false, isFinal: true},
      [_keyMap$]: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_modifications$3]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_HashSet))));
    dart.defineExtensionMethods(_HashSet, ['contains']);
    return _HashSet;
  });
  collection._HashSet = collection._HashSet$();
  collection._ImmutableSet$ = dart.generic(E => {
    var __t$_ImmutableSetOfE = () => (__t$_ImmutableSetOfE = dart.constFn(E[_eval]("collection|_ImmutableSet<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$_HashSetOfE = () => (__t$_HashSetOfE = dart.constFn(collection._HashSet$(E)))();
    class _ImmutableSet extends __t$_HashSetOfE() {
      static ['_#from#tearOff'](E, entries) {
        if (entries == null) dart.nullFailed(I[87], 307, 33, "entries");
        return new (collection._ImmutableSet$(E)).from(entries);
      }
      add(value) {
        E[_as](value);
        return dart.throw(collection._ImmutableSet._unsupported());
      }
      addAll(elements) {
        __t$IterableOfE()[_as](elements);
        if (elements == null) dart.nullFailed(I[87], 322, 27, "elements");
        return dart.throw(collection._ImmutableSet._unsupported());
      }
      clear() {
        return dart.throw(collection._ImmutableSet._unsupported());
      }
      remove(value) {
        return dart.throw(collection._ImmutableSet._unsupported());
      }
      static _unsupported() {
        return new core.UnsupportedError.new("Cannot modify unmodifiable set");
      }
    }
    (_ImmutableSet.from = function(entries) {
      if (entries == null) dart.nullFailed(I[87], 307, 33, "entries");
      this.$ti = this.$ti || __t$_ImmutableSetOfE();
      dart.global.Object.getPrototypeOf(_ImmutableSet).new.call(this);
      let map = this[_map$5];
      for (let key of entries) {
        if (key == null) {
          key = null;
        } else if (key[$_equals] !== dart.identityEquals) {
          key = _js_helper.putLinkedMapKey(key, this[_keyMap$]);
        }
        map.add(key);
      }
    }).prototype = _ImmutableSet.prototype;
    dart.addRtiResources(_ImmutableSet, ["collection|_ImmutableSet"]);
    dart.setStaticMethodSignature(_ImmutableSet, () => ['_unsupported']);
    dart.setLibraryUri(_ImmutableSet, I[24]);
    return _ImmutableSet;
  });
  collection._ImmutableSet = collection._ImmutableSet$();
  var _map$6 = dart.privateName(collection, "_IdentityHashSet._map");
  var _modifications$4 = dart.privateName(collection, "_IdentityHashSet._modifications");
  collection._IdentityHashSet$ = dart.generic(E => {
    var __t$_IdentityHashSetOfE = () => (__t$_IdentityHashSetOfE = dart.constFn(E[_eval]("collection|_IdentityHashSet<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$VoidToSetOfE = () => (__t$VoidToSetOfE = dart.constFn(E[_eval]("core|Set<0>()")))();
    var __t$ObjectNToEN = () => (__t$ObjectNToEN = dart.constFn(E[_eval]("0?(core|Object?)")))();
    var __t$_IdentityHashSetOfE$ = () => (__t$_IdentityHashSetOfE$ = dart.constFn(collection._IdentityHashSet$(E)))();
    var __t$_InternalSetOfE = () => (__t$_InternalSetOfE = dart.constFn(collection._InternalSet$(E)))();
    class _IdentityHashSet extends __t$_InternalSetOfE() {
      get [_map$5]() {
        return this[_map$6];
      }
      set [_map$5](value) {
        super[_map$5] = value;
      }
      get [_modifications$3]() {
        return this[_modifications$4];
      }
      set [_modifications$3](value) {
        this[_modifications$4] = value;
      }
      static ['_#new#tearOff'](E) {
        return new (collection._IdentityHashSet$(E)).new();
      }
      [_newSet]() {
        return new (__t$_IdentityHashSetOfE$()).new();
      }
      [_newSimilarSet](R) {
        return new (collection._IdentityHashSet$(R)).new();
      }
      contains(element) {
        return this[_map$5].has(element);
      }
      lookup(element) {
        return E[_is](element) && this[_map$5].has(element) ? element : null;
      }
      add(element) {
        E[_as](element);
        let map = this[_map$5];
        if (map.has(element)) return false;
        map.add(element);
        this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
        return true;
      }
      addAll(objects) {
        __t$IterableOfE()[_as](objects);
        if (objects == null) dart.nullFailed(I[87], 363, 27, "objects");
        let map = this[_map$5];
        let length = map.size;
        for (let key of objects) {
          map.add(key);
        }
        if (length !== map.size) {
          this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
        }
      }
      remove(element) {
        if (this[_map$5].delete(element)) {
          this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
          return true;
        }
        return false;
      }
      clear() {
        let map = this[_map$5];
        if (map.size > 0) {
          map.clear();
          this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
        }
      }
    }
    (_IdentityHashSet.new = function() {
      this[_map$6] = new Set();
      this[_modifications$4] = 0;
      this.$ti = this.$ti || __t$_IdentityHashSetOfE();
      dart.global.Object.getPrototypeOf(_IdentityHashSet).new.call(this);
      ;
    }).prototype = _IdentityHashSet.prototype;
    dart.addRtiResources(_IdentityHashSet, ["collection|_IdentityHashSet", "collection|HashSet", "collection|LinkedHashSet", "core|Set", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(_IdentityHashSet, () => dart.global.Object.setPrototypeOf({
      [_newSet]: __t$VoidToSetOfE(),
      [_newSimilarSet]: T$0.VoidToSetOfR(),
      contains: T$.ObjectNTobool(),
      [$contains]: T$.ObjectNTobool(),
      lookup: __t$ObjectNToEN(),
      add: T$.ObjectNTobool(),
      remove: T$.ObjectNTobool()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_IdentityHashSet))));
    dart.setMethodsDefaultTypeArgSignature(_IdentityHashSet, () => dart.global.Object.setPrototypeOf({[_newSimilarSet]: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_IdentityHashSet))));
    dart.setLibraryUri(_IdentityHashSet, I[24]);
    dart.setFieldSignature(_IdentityHashSet, () => dart.global.Object.setPrototypeOf({
      [_map$5]: {type: T$.dynamic(), isConst: false, isFinal: true},
      [_modifications$3]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_IdentityHashSet))));
    dart.defineExtensionMethods(_IdentityHashSet, ['contains']);
    return _IdentityHashSet;
  });
  collection._IdentityHashSet = collection._IdentityHashSet$();
  var _validKey$0 = dart.privateName(collection, "_validKey");
  var _equals$0 = dart.privateName(collection, "_equals");
  var _hashCode$0 = dart.privateName(collection, "_hashCode");
  var _modifications$5 = dart.privateName(collection, "_CustomHashSet._modifications");
  var _map$7 = dart.privateName(collection, "_CustomHashSet._map");
  collection._CustomHashSet$ = dart.generic(E => {
    var __t$_CustomHashSetOfE = () => (__t$_CustomHashSetOfE = dart.constFn(E[_eval]("collection|_CustomHashSet<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$VoidToSetOfE = () => (__t$VoidToSetOfE = dart.constFn(E[_eval]("core|Set<0>()")))();
    var __t$ObjectNToEN = () => (__t$ObjectNToEN = dart.constFn(E[_eval]("0?(core|Object?)")))();
    var __t$EAndETobool = () => (__t$EAndETobool = dart.constFn(E[_eval]("core|bool(0,0)")))();
    var __t$EToint = () => (__t$EToint = dart.constFn(E[_eval]("core|int(0)")))();
    var __t$_CustomHashSetOfE$ = () => (__t$_CustomHashSetOfE$ = dart.constFn(collection._CustomHashSet$(E)))();
    var __t$_InternalSetOfE = () => (__t$_InternalSetOfE = dart.constFn(collection._InternalSet$(E)))();
    class _CustomHashSet extends __t$_InternalSetOfE() {
      get [_modifications$3]() {
        return this[_modifications$5];
      }
      set [_modifications$3](value) {
        this[_modifications$5] = value;
      }
      get [_map$5]() {
        return this[_map$7];
      }
      set [_map$5](value) {
        super[_map$5] = value;
      }
      static ['_#new#tearOff'](E, _equals, _hashCode) {
        if (_equals == null) dart.nullFailed(I[87], 445, 23, "_equals");
        if (_hashCode == null) dart.nullFailed(I[87], 445, 37, "_hashCode");
        return new (collection._CustomHashSet$(E)).new(_equals, _hashCode);
      }
      [_newSet]() {
        return new (__t$_CustomHashSetOfE$()).new(this[_equals$0], this[_hashCode$0]);
      }
      [_newSimilarSet](R) {
        return new (collection._HashSet$(R)).new();
      }
      contains(key) {
        let t$36144;
        if (E[_is](key)) {
          let buckets = this[_keyMap$].get((t$36144 = key, this[_hashCode$0](t$36144)) & 0x3fffffff);
          if (buckets != null) {
            let equals = this[_equals$0];
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              let k = buckets[i];
              if (dart.test(equals(k, key))) return true;
            }
          }
        }
        return false;
      }
      lookup(key) {
        let t$36144;
        if (E[_is](key)) {
          let buckets = this[_keyMap$].get((t$36144 = key, this[_hashCode$0](t$36144)) & 0x3fffffff);
          if (buckets != null) {
            let equals = this[_equals$0];
            for (let i = 0, n = buckets.length; i < n; i = i + 1) {
              let k = buckets[i];
              if (dart.test(equals(k, key))) return k;
            }
          }
        }
        return null;
      }
      add(key) {
        let t$36144;
        E[_as](key);
        let keyMap = this[_keyMap$];
        let hash = (t$36144 = key, this[_hashCode$0](t$36144)) & 0x3fffffff;
        let buckets = keyMap.get(hash);
        if (buckets == null) {
          keyMap.set(hash, [key]);
        } else {
          let equals = this[_equals$0];
          for (let i = 0, n = buckets.length; i < n; i = i + 1) {
            let k = buckets[i];
            if (dart.test(equals(k, key))) return false;
          }
          buckets.push(key);
        }
        this[_map$5].add(key);
        this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
        return true;
      }
      addAll(objects) {
        __t$IterableOfE()[_as](objects);
        if (objects == null) dart.nullFailed(I[87], 497, 27, "objects");
        for (let element of objects)
          this.add(element);
      }
      remove(key) {
        let t$36144;
        if (E[_is](key)) {
          let hash = (t$36144 = key, this[_hashCode$0](t$36144)) & 0x3fffffff;
          let keyMap = this[_keyMap$];
          let buckets = keyMap.get(hash);
          if (buckets == null) return false;
          let equals = this[_equals$0];
          for (let i = 0, n = buckets.length; i < n; i = i + 1) {
            let k = buckets[i];
            if (dart.test(equals(k, key))) {
              if (n === 1) {
                keyMap.delete(hash);
              } else {
                buckets.splice(i, 1);
              }
              this[_map$5].delete(k);
              this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
              return true;
            }
          }
        }
        return false;
      }
      clear() {
        let map = this[_map$5];
        if (map.size > 0) {
          map.clear();
          this[_keyMap$].clear();
          this[_modifications$3] = this[_modifications$3] + 1 & 1073741823;
        }
      }
    }
    (_CustomHashSet.new = function(_equals, _hashCode) {
      if (_equals == null) dart.nullFailed(I[87], 445, 23, "_equals");
      if (_hashCode == null) dart.nullFailed(I[87], 445, 37, "_hashCode");
      this[_modifications$5] = 0;
      this[_map$7] = new Set();
      this[_keyMap$] = new Map();
      this[_equals$0] = _equals;
      this[_hashCode$0] = _hashCode;
      this.$ti = this.$ti || __t$_CustomHashSetOfE();
      dart.global.Object.getPrototypeOf(_CustomHashSet).new.call(this);
      ;
    }).prototype = _CustomHashSet.prototype;
    dart.addRtiResources(_CustomHashSet, ["collection|_CustomHashSet", "collection|HashSet", "collection|LinkedHashSet", "core|Set", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(_CustomHashSet, () => dart.global.Object.setPrototypeOf({
      [_newSet]: __t$VoidToSetOfE(),
      [_newSimilarSet]: T$0.VoidToSetOfR(),
      contains: T$.ObjectNTobool(),
      [$contains]: T$.ObjectNTobool(),
      lookup: __t$ObjectNToEN(),
      add: T$.ObjectNTobool(),
      remove: T$.ObjectNTobool()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_CustomHashSet))));
    dart.setMethodsDefaultTypeArgSignature(_CustomHashSet, () => dart.global.Object.setPrototypeOf({[_newSimilarSet]: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_CustomHashSet))));
    dart.setLibraryUri(_CustomHashSet, I[24]);
    dart.setFieldSignature(_CustomHashSet, () => dart.global.Object.setPrototypeOf({
      [_equals$0]: {type: __t$EAndETobool(), isConst: false, isFinal: false},
      [_hashCode$0]: {type: __t$EToint(), isConst: false, isFinal: false},
      [_modifications$3]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_map$5]: {type: T$.dynamic(), isConst: false, isFinal: true},
      [_keyMap$]: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_CustomHashSet))));
    dart.defineExtensionMethods(_CustomHashSet, ['contains']);
    return _CustomHashSet;
  });
  collection._CustomHashSet = collection._CustomHashSet$();
  collection._CustomKeyHashSet$ = dart.generic(E => {
    var __t$_CustomKeyHashSetOfE = () => (__t$_CustomKeyHashSetOfE = dart.constFn(E[_eval]("collection|_CustomKeyHashSet<0>")))();
    var __t$_CustomKeyHashSetOfE$ = () => (__t$_CustomKeyHashSetOfE$ = dart.constFn(collection._CustomKeyHashSet$(E)))();
    var __t$_CustomHashSetOfE = () => (__t$_CustomHashSetOfE = dart.constFn(collection._CustomHashSet$(E)))();
    class _CustomKeyHashSet extends __t$_CustomHashSetOfE() {
      static ['_#new#tearOff'](E, equals, hashCode, _validKey) {
        if (equals == null) dart.nullFailed(I[87], 393, 34, "equals");
        if (hashCode == null) dart.nullFailed(I[87], 393, 53, "hashCode");
        if (_validKey == null) dart.nullFailed(I[87], 393, 68, "_validKey");
        return new (collection._CustomKeyHashSet$(E)).new(equals, hashCode, _validKey);
      }
      [_newSet]() {
        return new (__t$_CustomKeyHashSetOfE$()).new(this[_equals$0], this[_hashCode$0], this[_validKey$0]);
      }
      [_newSimilarSet](R) {
        return new (collection._HashSet$(R)).new();
      }
      contains(element) {
        let t$36144;
        if (!dart.test((t$36144 = element, this[_validKey$0](t$36144)))) return false;
        return super.contains(element);
      }
      lookup(element) {
        let t$36144;
        if (!dart.test((t$36144 = element, this[_validKey$0](t$36144)))) return null;
        return super.lookup(element);
      }
      remove(element) {
        let t$36144;
        if (!dart.test((t$36144 = element, this[_validKey$0](t$36144)))) return false;
        return super.remove(element);
      }
    }
    (_CustomKeyHashSet.new = function(equals, hashCode, _validKey) {
      if (equals == null) dart.nullFailed(I[87], 393, 34, "equals");
      if (hashCode == null) dart.nullFailed(I[87], 393, 53, "hashCode");
      if (_validKey == null) dart.nullFailed(I[87], 393, 68, "_validKey");
      this[_validKey$0] = _validKey;
      this.$ti = this.$ti || __t$_CustomKeyHashSetOfE();
      dart.global.Object.getPrototypeOf(_CustomKeyHashSet).new.call(this, equals, hashCode);
      ;
    }).prototype = _CustomKeyHashSet.prototype;
    dart.addRtiResources(_CustomKeyHashSet, ["collection|_CustomKeyHashSet"]);
    dart.setLibraryUri(_CustomKeyHashSet, I[24]);
    dart.setFieldSignature(_CustomKeyHashSet, () => dart.global.Object.setPrototypeOf({[_validKey$0]: {type: T$.ObjectNTobool(), isConst: false, isFinal: false}}, dart.getFields(dart.global.Object.getPrototypeOf(_CustomKeyHashSet))));
    dart.defineExtensionMethods(_CustomKeyHashSet, ['contains']);
    return _CustomKeyHashSet;
  });
  collection._CustomKeyHashSet = collection._CustomKeyHashSet$();
  var _source = dart.privateName(collection, "_source");
  collection.UnmodifiableListView$ = dart.generic(E => {
    var __t$UnmodifiableListViewOfE = () => (__t$UnmodifiableListViewOfE = dart.constFn(E[_eval]("collection|UnmodifiableListView<0>")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$UnmodifiableListBaseOfE = () => (__t$UnmodifiableListBaseOfE = dart.constFn(_internal.UnmodifiableListBase$(E)))();
    class UnmodifiableListView extends __t$UnmodifiableListBaseOfE() {
      static ['_#new#tearOff'](E, source) {
        if (source == null) dart.nullFailed(I[89], 29, 36, "source");
        return new (collection.UnmodifiableListView$(E)).new(source);
      }
      cast(R) {
        return new (collection.UnmodifiableListView$(R)).new(this[_source][$cast](R));
      }
      get length() {
        return this[_source][$length];
      }
      set length(value) {
        super.length = value;
      }
      _get(index) {
        if (index == null) dart.nullFailed(I[89], 34, 21, "index");
        return this[_source][$elementAt](index);
      }
    }
    (UnmodifiableListView.new = function(source) {
      if (source == null) dart.nullFailed(I[89], 29, 36, "source");
      this[_source] = source;
      this.$ti = this.$ti || __t$UnmodifiableListViewOfE();
      dart.global.Object.getPrototypeOf(UnmodifiableListView).new.call(this);
      ;
    }).prototype = UnmodifiableListView.prototype;
    dart.addRtiResources(UnmodifiableListView, ["collection|UnmodifiableListView"]);
    dart.setMethodSignature(UnmodifiableListView, () => dart.global.Object.setPrototypeOf({
      _get: __t$intToE(),
      [$_get]: __t$intToE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(UnmodifiableListView))));
    dart.setGetterSignature(UnmodifiableListView, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(UnmodifiableListView))));
    dart.setLibraryUri(UnmodifiableListView, I[24]);
    dart.setFieldSignature(UnmodifiableListView, () => dart.global.Object.setPrototypeOf({[_source]: {type: __t$IterableOfE(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(UnmodifiableListView))));
    dart.defineExtensionMethods(UnmodifiableListView, ['cast', '_get']);
    dart.defineExtensionAccessors(UnmodifiableListView, ['length']);
    return UnmodifiableListView;
  });
  collection.UnmodifiableListView = collection.UnmodifiableListView$();
  collection.HashMap$ = dart.generic((K, V) => {
    class HashMap extends core.Object {
      static new(opts) {
        let t$36144, t$36144$, t$36144$0;
        let equals = opts && 'equals' in opts ? opts.equals : null;
        let hashCode = opts && 'hashCode' in opts ? opts.hashCode : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        if (isValidKey == null) {
          if (hashCode == null) {
            if (equals == null) {
              if (dart_rti.createRuntimeType(K) === dart_rti.createRuntimeType(T$.String()) || dart_rti.createRuntimeType(K) === dart_rti.createRuntimeType(T$.int())) {
                return new (_js_helper.IdentityMap$(K, V)).new();
              }
              return new (_js_helper.LinkedMap$(K, V)).new();
            }
            hashCode = C[116] || CT.C116;
          } else if ((C[117] || CT.C117) === hashCode && (C[118] || CT.C118) === equals) {
            return new (_js_helper.IdentityMap$(K, V)).new();
          }
          return new (_js_helper.CustomHashMap$(K, V)).new((t$36144 = equals, t$36144 == null ? C[119] || CT.C119 : t$36144), hashCode);
        }
        return new (_js_helper.CustomKeyHashMap$(K, V)).new((t$36144$ = equals, t$36144$ == null ? C[119] || CT.C119 : t$36144$), (t$36144$0 = hashCode, t$36144$0 == null ? C[116] || CT.C116 : t$36144$0), isValidKey);
      }
      static ['_#new#tearOff'](K, V, opts) {
        let equals = opts && 'equals' in opts ? opts.equals : null;
        let hashCode = opts && 'hashCode' in opts ? opts.hashCode : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        return collection.HashMap$(K, V).new({equals: equals, hashCode: hashCode, isValidKey: isValidKey});
      }
      static ['_#identity#tearOff'](K, V) {
        return new (_js_helper.IdentityMap$(K, V)).new();
      }
      static from(other) {
        if (other == null) dart.nullFailed(I[90], 199, 46, "other");
        let result = new (_js_helper.LinkedMap$(K, V)).new();
        other[$forEach](dart.fn((k, v) => {
          result[$_set](K[_as](k), V[_as](v));
        }, T$.dynamicAnddynamicTovoid()));
        return result;
      }
      static ['_#from#tearOff'](K, V, other) {
        if (other == null) dart.nullFailed(I[90], 199, 46, "other");
        return collection.HashMap$(K, V).from(other);
      }
      static of(other) {
        let t$36144;
        if (other == null) dart.nullFailed(I[90], 214, 32, "other");
        t$36144 = new (_js_helper.LinkedMap$(K, V)).new();
        return (() => {
          t$36144[$addAll](other);
          return t$36144;
        })();
      }
      static ['_#of#tearOff'](K, V, other) {
        if (other == null) dart.nullFailed(I[90], 214, 32, "other");
        return collection.HashMap$(K, V).of(other);
      }
      static fromIterable(iterable, opts) {
        if (iterable == null) dart.nullFailed(I[90], 234, 41, "iterable");
        let key = opts && 'key' in opts ? opts.key : null;
        let value = opts && 'value' in opts ? opts.value : null;
        let map = new (_js_helper.LinkedMap$(K, V)).new();
        collection.MapBase._fillMapWithMappedIterable(map, iterable, key, value);
        return map;
      }
      static ['_#fromIterable#tearOff'](K, V, iterable, opts) {
        if (iterable == null) dart.nullFailed(I[90], 234, 41, "iterable");
        let key = opts && 'key' in opts ? opts.key : null;
        let value = opts && 'value' in opts ? opts.value : null;
        return collection.HashMap$(K, V).fromIterable(iterable, {key: key, value: value});
      }
      static fromIterables(keys, values) {
        if (keys == null) dart.nullFailed(I[90], 258, 45, "keys");
        if (values == null) dart.nullFailed(I[90], 258, 63, "values");
        let map = new (_js_helper.LinkedMap$(K, V)).new();
        collection.MapBase._fillMapWithIterables(map, keys, values);
        return map;
      }
      static ['_#fromIterables#tearOff'](K, V, keys, values) {
        if (keys == null) dart.nullFailed(I[90], 258, 45, "keys");
        if (values == null) dart.nullFailed(I[90], 258, 63, "values");
        return collection.HashMap$(K, V).fromIterables(keys, values);
      }
      static fromEntries(entries) {
        let t$36144;
        if (entries == null) dart.nullFailed(I[90], 279, 56, "entries");
        t$36144 = new (_js_helper.LinkedMap$(K, V)).new();
        return (() => {
          t$36144[$addEntries](entries);
          return t$36144;
        })();
      }
      static ['_#fromEntries#tearOff'](K, V, entries) {
        if (entries == null) dart.nullFailed(I[90], 279, 56, "entries");
        return collection.HashMap$(K, V).fromEntries(entries);
      }
    }
    (HashMap[dart.mixinNew] = function() {
    }).prototype = HashMap.prototype;
    dart.addRtiResources(HashMap, ["collection|HashMap", "core|Map"]);
    dart.setStaticMethodSignature(HashMap, () => ['new', 'identity', 'from', 'of', 'fromIterable', 'fromIterables', 'fromEntries']);
    dart.setLibraryUri(HashMap, I[24]);
    return HashMap;
  });
  collection.HashMap = collection.HashMap$();
  collection.HashSet$ = dart.generic(E => {
    class HashSet extends core.Object {
      static new(opts) {
        let t$36144, t$36144$, t$36144$0, t$36144$1;
        let equals = opts && 'equals' in opts ? opts.equals : null;
        let hashCode = opts && 'hashCode' in opts ? opts.hashCode : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        if (isValidKey == null) {
          if (hashCode == null) {
            if (equals == null) {
              if (dart_rti.createRuntimeType(E) === dart_rti.createRuntimeType(T$.String()) || dart_rti.createRuntimeType(E) === dart_rti.createRuntimeType(T$.int())) {
                return new (collection._IdentityHashSet$(E)).new();
              }
              return new (collection._HashSet$(E)).new();
            }
          } else if ((C[117] || CT.C117) === hashCode && (C[118] || CT.C118) === equals) {
            return new (collection._IdentityHashSet$(E)).new();
          }
          return new (collection._CustomHashSet$(E)).new((t$36144 = equals, t$36144 == null ? C[119] || CT.C119 : t$36144), (t$36144$ = hashCode, t$36144$ == null ? C[116] || CT.C116 : t$36144$));
        }
        return new (collection._CustomKeyHashSet$(E)).new((t$36144$0 = equals, t$36144$0 == null ? C[119] || CT.C119 : t$36144$0), (t$36144$1 = hashCode, t$36144$1 == null ? C[116] || CT.C116 : t$36144$1), isValidKey);
      }
      static ['_#new#tearOff'](E, opts) {
        let equals = opts && 'equals' in opts ? opts.equals : null;
        let hashCode = opts && 'hashCode' in opts ? opts.hashCode : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        return collection.HashSet$(E).new({equals: equals, hashCode: hashCode, isValidKey: isValidKey});
      }
      static ['_#identity#tearOff'](E) {
        return new (collection._IdentityHashSet$(E)).new();
      }
      static from(elements) {
        if (elements == null) dart.nullFailed(I[91], 169, 42, "elements");
        let result = new (collection._HashSet$(E)).new();
        for (let e of elements) {
          result.add(E[_as](e));
        }
        return result;
      }
      static ['_#from#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[91], 169, 42, "elements");
        return collection.HashSet$(E).from(elements);
      }
      static of(elements) {
        let t$36144;
        if (elements == null) dart.nullFailed(I[91], 189, 34, "elements");
        t$36144 = new (collection._HashSet$(E)).new();
        return (() => {
          t$36144.addAll(elements);
          return t$36144;
        })();
      }
      static ['_#of#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[91], 189, 34, "elements");
        return collection.HashSet$(E).of(elements);
      }
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (HashSet[dart.mixinNew] = function() {
    }).prototype = HashSet.prototype;
    dart.addRtiResources(HashSet, ["collection|HashSet", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setStaticMethodSignature(HashSet, () => ['new', 'identity', 'from', 'of']);
    dart.setLibraryUri(HashSet, I[24]);
    return HashSet;
  });
  collection.HashSet = collection.HashSet$();
  var _hasNext = dart.privateName(collection, "_hasNext");
  var _iterator = dart.privateName(collection, "_iterator");
  var _ensureHasNext = dart.privateName(collection, "_ensureHasNext");
  collection.HasNextIterator$ = dart.generic(E => {
    var __t$HasNextIteratorOfE = () => (__t$HasNextIteratorOfE = dart.constFn(E[_eval]("collection|HasNextIterator<0>")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    class HasNextIterator extends core.Object {
      static ['_#new#tearOff'](E, iterator) {
        if (iterator == null) dart.nullFailed(I[92], 33, 31, "iterator");
        return new (collection.HasNextIterator$(E)).new(iterator);
      }
      get hasNext() {
        return this[_ensureHasNext];
      }
      get [_ensureHasNext]() {
        let t$36144;
        t$36144 = this[_hasNext];
        return t$36144 == null ? this[_hasNext] = this[_iterator].moveNext() : t$36144;
      }
      next() {
        if (dart.test(this[_ensureHasNext])) {
          this[_hasNext] = null;
          return this[_iterator].current;
        }
        dart.throw(new core.StateError.new("No more elements"));
      }
    }
    (HasNextIterator.new = function(iterator) {
      if (iterator == null) dart.nullFailed(I[92], 33, 31, "iterator");
      this[_hasNext] = null;
      this[_iterator] = iterator;
      this.$ti = this.$ti || __t$HasNextIteratorOfE();
      ;
    }).prototype = HasNextIterator.prototype;
    dart.addRtiResources(HasNextIterator, ["collection|HasNextIterator"]);
    dart.setMethodSignature(HasNextIterator, () => dart.global.Object.setPrototypeOf({next: __t$VoidToE()}, dart.getMethods(dart.global.Object.getPrototypeOf(HasNextIterator))));
    dart.setGetterSignature(HasNextIterator, () => dart.global.Object.setPrototypeOf({
      hasNext: T$.bool(),
      [_ensureHasNext]: T$.bool()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(HasNextIterator))));
    dart.setLibraryUri(HasNextIterator, I[24]);
    dart.setFieldSignature(HasNextIterator, () => dart.global.Object.setPrototypeOf({
      [_iterator]: {type: __t$IteratorOfE(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_hasNext]: {type: T$.boolN(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(HasNextIterator))));
    return HasNextIterator;
  });
  collection.HasNextIterator = collection.HasNextIterator$();
  collection.LinkedHashMap$ = dart.generic((K, V) => {
    class LinkedHashMap extends core.Object {
      static new(opts) {
        let t$36144, t$36144$, t$36144$0;
        let equals = opts && 'equals' in opts ? opts.equals : null;
        let hashCode = opts && 'hashCode' in opts ? opts.hashCode : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        if (isValidKey == null) {
          if (hashCode == null) {
            if (equals == null) {
              if (dart_rti.createRuntimeType(K) === dart_rti.createRuntimeType(T$.String()) || dart_rti.createRuntimeType(K) === dart_rti.createRuntimeType(T$.int())) {
                return new (_js_helper.IdentityMap$(K, V)).new();
              }
              return new (_js_helper.LinkedMap$(K, V)).new();
            }
            hashCode = C[116] || CT.C116;
          } else if ((C[117] || CT.C117) === hashCode && (C[118] || CT.C118) === equals) {
            return new (_js_helper.IdentityMap$(K, V)).new();
          }
          return new (_js_helper.CustomHashMap$(K, V)).new((t$36144 = equals, t$36144 == null ? C[119] || CT.C119 : t$36144), hashCode);
        }
        return new (_js_helper.CustomKeyHashMap$(K, V)).new((t$36144$ = equals, t$36144$ == null ? C[119] || CT.C119 : t$36144$), (t$36144$0 = hashCode, t$36144$0 == null ? C[116] || CT.C116 : t$36144$0), isValidKey);
      }
      static ['_#new#tearOff'](K, V, opts) {
        let equals = opts && 'equals' in opts ? opts.equals : null;
        let hashCode = opts && 'hashCode' in opts ? opts.hashCode : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        return collection.LinkedHashMap$(K, V).new({equals: equals, hashCode: hashCode, isValidKey: isValidKey});
      }
      static ['_#identity#tearOff'](K, V) {
        return new (_js_helper.IdentityMap$(K, V)).new();
      }
      static from(other) {
        if (other == null) dart.nullFailed(I[93], 184, 52, "other");
        let result = new (_js_helper.LinkedMap$(K, V)).new();
        other[$forEach](dart.fn((k, v) => {
          result[$_set](K[_as](k), V[_as](v));
        }, T$.dynamicAnddynamicTovoid()));
        return result;
      }
      static ['_#from#tearOff'](K, V, other) {
        if (other == null) dart.nullFailed(I[93], 184, 52, "other");
        return collection.LinkedHashMap$(K, V).from(other);
      }
      static of(other) {
        let t$36144;
        if (other == null) dart.nullFailed(I[93], 199, 38, "other");
        t$36144 = new (_js_helper.LinkedMap$(K, V)).new();
        return (() => {
          t$36144[$addAll](other);
          return t$36144;
        })();
      }
      static ['_#of#tearOff'](K, V, other) {
        if (other == null) dart.nullFailed(I[93], 199, 38, "other");
        return collection.LinkedHashMap$(K, V).of(other);
      }
      static fromIterable(iterable, opts) {
        if (iterable == null) dart.nullFailed(I[93], 220, 47, "iterable");
        let key = opts && 'key' in opts ? opts.key : null;
        let value = opts && 'value' in opts ? opts.value : null;
        let map = new (_js_helper.LinkedMap$(K, V)).new();
        collection.MapBase._fillMapWithMappedIterable(map, iterable, key, value);
        return map;
      }
      static ['_#fromIterable#tearOff'](K, V, iterable, opts) {
        if (iterable == null) dart.nullFailed(I[93], 220, 47, "iterable");
        let key = opts && 'key' in opts ? opts.key : null;
        let value = opts && 'value' in opts ? opts.value : null;
        return collection.LinkedHashMap$(K, V).fromIterable(iterable, {key: key, value: value});
      }
      static fromIterables(keys, values) {
        if (keys == null) dart.nullFailed(I[93], 244, 51, "keys");
        if (values == null) dart.nullFailed(I[93], 244, 69, "values");
        let map = new (_js_helper.LinkedMap$(K, V)).new();
        collection.MapBase._fillMapWithIterables(map, keys, values);
        return map;
      }
      static ['_#fromIterables#tearOff'](K, V, keys, values) {
        if (keys == null) dart.nullFailed(I[93], 244, 51, "keys");
        if (values == null) dart.nullFailed(I[93], 244, 69, "values");
        return collection.LinkedHashMap$(K, V).fromIterables(keys, values);
      }
      static fromEntries(entries) {
        let t$36144;
        if (entries == null) dart.nullFailed(I[93], 264, 62, "entries");
        t$36144 = new (_js_helper.LinkedMap$(K, V)).new();
        return (() => {
          t$36144[$addEntries](entries);
          return t$36144;
        })();
      }
      static ['_#fromEntries#tearOff'](K, V, entries) {
        if (entries == null) dart.nullFailed(I[93], 264, 62, "entries");
        return collection.LinkedHashMap$(K, V).fromEntries(entries);
      }
    }
    (LinkedHashMap[dart.mixinNew] = function() {
    }).prototype = LinkedHashMap.prototype;
    dart.addRtiResources(LinkedHashMap, ["collection|LinkedHashMap", "core|Map"]);
    dart.setStaticMethodSignature(LinkedHashMap, () => ['new', 'identity', 'from', 'of', 'fromIterable', 'fromIterables', 'fromEntries']);
    dart.setLibraryUri(LinkedHashMap, I[24]);
    return LinkedHashMap;
  });
  collection.LinkedHashMap = collection.LinkedHashMap$();
  collection.LinkedHashSet$ = dart.generic(E => {
    class LinkedHashSet extends core.Object {
      static new(opts) {
        let t$36144, t$36144$, t$36144$0;
        let equals = opts && 'equals' in opts ? opts.equals : null;
        let hashCode = opts && 'hashCode' in opts ? opts.hashCode : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        if (isValidKey == null) {
          if (hashCode == null) {
            if (equals == null) {
              if (dart_rti.createRuntimeType(E) === dart_rti.createRuntimeType(T$.String()) || dart_rti.createRuntimeType(E) === dart_rti.createRuntimeType(T$.int())) {
                return new (collection._IdentityHashSet$(E)).new();
              }
              return new (collection._HashSet$(E)).new();
            }
            hashCode = C[116] || CT.C116;
          } else if ((C[117] || CT.C117) === hashCode && (C[118] || CT.C118) === equals) {
            return new (collection._IdentityHashSet$(E)).new();
          }
          return new (collection._CustomHashSet$(E)).new((t$36144 = equals, t$36144 == null ? C[119] || CT.C119 : t$36144), hashCode);
        }
        return new (collection._CustomKeyHashSet$(E)).new((t$36144$ = equals, t$36144$ == null ? C[119] || CT.C119 : t$36144$), (t$36144$0 = hashCode, t$36144$0 == null ? C[116] || CT.C116 : t$36144$0), isValidKey);
      }
      static ['_#new#tearOff'](E, opts) {
        let equals = opts && 'equals' in opts ? opts.equals : null;
        let hashCode = opts && 'hashCode' in opts ? opts.hashCode : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        return collection.LinkedHashSet$(E).new({equals: equals, hashCode: hashCode, isValidKey: isValidKey});
      }
      static ['_#identity#tearOff'](E) {
        return new (collection._IdentityHashSet$(E)).new();
      }
      static from(elements) {
        if (elements == null) dart.nullFailed(I[94], 173, 48, "elements");
        let result = new (collection._HashSet$(E)).new();
        for (let element of elements) {
          result.add(E[_as](element));
        }
        return result;
      }
      static ['_#from#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[94], 173, 48, "elements");
        return collection.LinkedHashSet$(E).from(elements);
      }
      static of(elements) {
        let t$36144;
        if (elements == null) dart.nullFailed(I[94], 191, 40, "elements");
        t$36144 = new (collection._HashSet$(E)).new();
        return (() => {
          t$36144.addAll(elements);
          return t$36144;
        })();
      }
      static ['_#of#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[94], 191, 40, "elements");
        return collection.LinkedHashSet$(E).of(elements);
      }
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (LinkedHashSet[dart.mixinNew] = function() {
    }).prototype = LinkedHashSet.prototype;
    dart.addRtiResources(LinkedHashSet, ["collection|LinkedHashSet", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setStaticMethodSignature(LinkedHashSet, () => ['new', 'identity', 'from', 'of']);
    dart.setLibraryUri(LinkedHashSet, I[24]);
    return LinkedHashSet;
  });
  collection.LinkedHashSet = collection.LinkedHashSet$();
  var _modificationCount = dart.privateName(collection, "_modificationCount");
  var _length$0 = dart.privateName(collection, "_length");
  var _first = dart.privateName(collection, "_first");
  var _insertBefore = dart.privateName(collection, "_insertBefore");
  var _list$15 = dart.privateName(collection, "_list");
  var _unlink = dart.privateName(collection, "_unlink");
  var _next$2 = dart.privateName(collection, "_next");
  var _previous$2 = dart.privateName(collection, "_previous");
  collection.LinkedList$ = dart.generic(E => {
    var __t$LinkedListOfE = () => (__t$LinkedListOfE = dart.constFn(E[_eval]("collection|LinkedList<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$_LinkedListIteratorOfE = () => (__t$_LinkedListIteratorOfE = dart.constFn(collection._LinkedListIterator$(E)))();
    var __t$IterableOfE$ = () => (__t$IterableOfE$ = dart.constFn(core.Iterable$(E)))();
    class LinkedList extends __t$IterableOfE$() {
      static ['_#new#tearOff'](E) {
        return new (collection.LinkedList$(E)).new();
      }
      addFirst(entry) {
        E[_as](entry);
        if (entry == null) dart.nullFailed(I[95], 90, 19, "entry");
        this[_insertBefore](this[_first], entry, {updateFirst: true});
        this[_first] = entry;
      }
      add(entry) {
        E[_as](entry);
        if (entry == null) dart.nullFailed(I[95], 96, 14, "entry");
        this[_insertBefore](this[_first], entry, {updateFirst: false});
      }
      addAll(entries) {
        __t$IterableOfE()[_as](entries);
        if (entries == null) dart.nullFailed(I[95], 101, 27, "entries");
        entries[$forEach](dart.bind(this, 'add'));
      }
      remove(entry) {
        E[_as](entry);
        if (entry == null) dart.nullFailed(I[95], 111, 17, "entry");
        if (!dart.equals(entry[_list$15], this)) return false;
        this[_unlink](entry);
        return true;
      }
      contains(entry) {
        return T$1.LinkedListEntryOfLinkedListEntry()[_is](entry) && this === entry.list;
      }
      get iterator() {
        return new (__t$_LinkedListIteratorOfE()).new(this);
      }
      get length() {
        return this[_length$0];
      }
      clear() {
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        if (dart.test(this.isEmpty)) return;
        let next = dart.nullCheck(this[_first]);
        do {
          let entry = next;
          next = dart.nullCheck(entry[_next$2]);
          entry[_next$2] = entry[_previous$2] = entry[_list$15] = null;
        } while (next !== this[_first]);
        this[_first] = null;
        this[_length$0] = 0;
      }
      get first() {
        if (dart.test(this.isEmpty)) {
          dart.throw(new core.StateError.new("No such element"));
        }
        return dart.nullCheck(this[_first]);
      }
      get last() {
        if (dart.test(this.isEmpty)) {
          dart.throw(new core.StateError.new("No such element"));
        }
        return dart.nullCheck(dart.nullCheck(this[_first])[_previous$2]);
      }
      get single() {
        if (dart.test(this.isEmpty)) {
          dart.throw(new core.StateError.new("No such element"));
        }
        if (dart.notNull(this[_length$0]) > 1) {
          dart.throw(new core.StateError.new("Too many elements"));
        }
        return dart.nullCheck(this[_first]);
      }
      forEach(action) {
        if (action == null) dart.nullFailed(I[95], 171, 21, "action");
        let modificationCount = this[_modificationCount];
        if (dart.test(this.isEmpty)) return;
        let current = dart.nullCheck(this[_first]);
        do {
          action(current);
          if (modificationCount != this[_modificationCount]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
          current = dart.nullCheck(current[_next$2]);
        } while (current !== this[_first]);
      }
      get isEmpty() {
        return this[_length$0] === 0;
      }
      [_insertBefore](entry, newEntry, opts) {
        __t$EN()[_as](entry);
        E[_as](newEntry);
        if (newEntry == null) dart.nullFailed(I[95], 191, 34, "newEntry");
        let updateFirst = opts && 'updateFirst' in opts ? opts.updateFirst : null;
        if (updateFirst == null) dart.nullFailed(I[95], 191, 59, "updateFirst");
        if (newEntry.list != null) {
          dart.throw(new core.StateError.new("LinkedListEntry is already in a LinkedList"));
        }
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        newEntry[_list$15] = this;
        if (dart.test(this.isEmpty)) {
          if (!(entry == null)) dart.assertFailed(null, I[95], 199, 14, "entry == null");
          newEntry[_previous$2] = newEntry[_next$2] = newEntry;
          this[_first] = newEntry;
          this[_length$0] = dart.notNull(this[_length$0]) + 1;
          return;
        }
        let predecessor = dart.nullCheck(dart.nullCheck(entry)[_previous$2]);
        let successor = entry;
        newEntry[_previous$2] = predecessor;
        newEntry[_next$2] = successor;
        predecessor[_next$2] = newEntry;
        successor[_previous$2] = newEntry;
        if (dart.test(updateFirst) && entry == this[_first]) {
          this[_first] = newEntry;
        }
        this[_length$0] = dart.notNull(this[_length$0]) + 1;
      }
      [_unlink](entry) {
        E[_as](entry);
        if (entry == null) dart.nullFailed(I[95], 217, 18, "entry");
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        dart.nullCheck(entry[_next$2])[_previous$2] = entry[_previous$2];
        let next = dart.nullCheck(entry[_previous$2])[_next$2] = entry[_next$2];
        this[_length$0] = dart.notNull(this[_length$0]) - 1;
        entry[_list$15] = entry[_next$2] = entry[_previous$2] = null;
        if (dart.test(this.isEmpty)) {
          this[_first] = null;
        } else if (entry == this[_first]) {
          this[_first] = next;
        }
      }
    }
    (LinkedList.new = function() {
      this[_modificationCount] = 0;
      this[_length$0] = 0;
      this[_first] = null;
      this.$ti = this.$ti || __t$LinkedListOfE();
      dart.global.Object.getPrototypeOf(LinkedList).new.call(this);
      ;
    }).prototype = LinkedList.prototype;
    dart.addRtiResources(LinkedList, ["collection|LinkedList"]);
    dart.setMethodSignature(LinkedList, () => dart.global.Object.setPrototypeOf({
      addFirst: T$.ObjectNTovoid(),
      add: T$.ObjectNTovoid(),
      addAll: T$.ObjectNTovoid(),
      remove: T$.ObjectNTobool(),
      clear: T$.VoidTovoid(),
      [_insertBefore]: T$1.ObjectNAndObjectN__Tovoid(),
      [_unlink]: T$.ObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(LinkedList))));
    dart.setGetterSignature(LinkedList, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(LinkedList))));
    dart.setLibraryUri(LinkedList, I[24]);
    dart.setFieldSignature(LinkedList, () => dart.global.Object.setPrototypeOf({
      [_modificationCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_length$0]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_first]: {type: __t$EN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(LinkedList))));
    dart.defineExtensionMethods(LinkedList, ['contains', 'forEach']);
    dart.defineExtensionAccessors(LinkedList, [
      'iterator',
      'length',
      'first',
      'last',
      'single',
      'isEmpty'
    ]);
    return LinkedList;
  });
  collection.LinkedList = collection.LinkedList$();
  var _current$1 = dart.privateName(collection, "_current");
  var _visitedFirst = dart.privateName(collection, "_visitedFirst");
  collection._LinkedListIterator$ = dart.generic(E => {
    var __t$_LinkedListIteratorOfE = () => (__t$_LinkedListIteratorOfE = dart.constFn(E[_eval]("collection|_LinkedListIterator<0>")))();
    var __t$LinkedListOfE = () => (__t$LinkedListOfE = dart.constFn(E[_eval]("collection|LinkedList<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    class _LinkedListIterator extends core.Object {
      static ['_#new#tearOff'](E, list) {
        if (list == null) dart.nullFailed(I[95], 238, 37, "list");
        return new (collection._LinkedListIterator$(E)).new(list);
      }
      get current() {
        return dart.nullCast(this[_current$1], E);
      }
      moveNext() {
        if (this[_modificationCount] != this[_list$15][_modificationCount]) {
          dart.throw(new core.ConcurrentModificationError.new(this));
        }
        if (dart.test(this[_list$15].isEmpty) || dart.test(this[_visitedFirst]) && this[_next$2] == this[_list$15].first) {
          this[_current$1] = null;
          return false;
        }
        this[_visitedFirst] = true;
        this[_current$1] = this[_next$2];
        this[_next$2] = dart.nullCheck(this[_next$2])[_next$2];
        return true;
      }
    }
    (_LinkedListIterator.new = function(list) {
      if (list == null) dart.nullFailed(I[95], 238, 37, "list");
      this[_current$1] = null;
      this[_list$15] = list;
      this[_modificationCount] = list[_modificationCount];
      this[_next$2] = list[_first];
      this[_visitedFirst] = false;
      this.$ti = this.$ti || __t$_LinkedListIteratorOfE();
      ;
    }).prototype = _LinkedListIterator.prototype;
    dart.addRtiResources(_LinkedListIterator, ["collection|_LinkedListIterator", "core|Iterator"]);
    dart.setMethodSignature(_LinkedListIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_LinkedListIterator))));
    dart.setGetterSignature(_LinkedListIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(_LinkedListIterator))));
    dart.setLibraryUri(_LinkedListIterator, I[24]);
    dart.setFieldSignature(_LinkedListIterator, () => dart.global.Object.setPrototypeOf({
      [_list$15]: {type: __t$LinkedListOfE(), isConst: false, isFinal: true, libraryUri: I[24]},
      [_modificationCount]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_current$1]: {type: __t$EN(), isConst: false, isFinal: false},
      [_next$2]: {type: __t$EN(), isConst: false, isFinal: false},
      [_visitedFirst]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_LinkedListIterator))));
    return _LinkedListIterator;
  });
  collection._LinkedListIterator = collection._LinkedListIterator$();
  var _list$16 = dart.privateName(collection, "LinkedListEntry._list");
  var _next$3 = dart.privateName(collection, "LinkedListEntry._next");
  var _previous$3 = dart.privateName(collection, "LinkedListEntry._previous");
  collection.LinkedListEntry$ = dart.generic(E => {
    var __t$LinkedListEntryOfE = () => (__t$LinkedListEntryOfE = dart.constFn(E[_eval]("collection|LinkedListEntry<0>")))();
    var __t$LinkedListNOfE = () => (__t$LinkedListNOfE = dart.constFn(E[_eval]("collection|LinkedList<0>?")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    class LinkedListEntry extends core.Object {
      get [_list$15]() {
        return this[_list$16];
      }
      set [_list$15](value) {
        this[_list$16] = __t$LinkedListNOfE()[_as](value);
      }
      get [_next$2]() {
        return this[_next$3];
      }
      set [_next$2](value) {
        this[_next$3] = __t$EN()[_as](value);
      }
      get [_previous$2]() {
        return this[_previous$3];
      }
      set [_previous$2](value) {
        this[_previous$3] = __t$EN()[_as](value);
      }
      get list() {
        return this[_list$15];
      }
      unlink() {
        dart.nullCheck(this[_list$15])[_unlink](E[_as](this));
      }
      get next() {
        if (this[_list$15] == null || dart.nullCheck(this[_list$15]).first == this[_next$2]) return null;
        return this[_next$2];
      }
      get previous() {
        if (this[_list$15] == null || this === dart.nullCheck(this[_list$15]).first) return null;
        return this[_previous$2];
      }
      insertAfter(entry) {
        E[_as](entry);
        if (entry == null) dart.nullFailed(I[95], 312, 22, "entry");
        dart.nullCheck(this[_list$15])[_insertBefore](this[_next$2], entry, {updateFirst: false});
      }
      insertBefore(entry) {
        E[_as](entry);
        if (entry == null) dart.nullFailed(I[95], 320, 23, "entry");
        dart.nullCheck(this[_list$15])[_insertBefore](E[_as](this), entry, {updateFirst: true});
      }
    }
    (LinkedListEntry.new = function() {
      this[_list$16] = null;
      this[_next$3] = null;
      this[_previous$3] = null;
      this.$ti = this.$ti || __t$LinkedListEntryOfE();
      ;
    }).prototype = LinkedListEntry.prototype;
    dart.addRtiResources(LinkedListEntry, ["collection|LinkedListEntry"]);
    dart.setMethodSignature(LinkedListEntry, () => dart.global.Object.setPrototypeOf({
      unlink: T$.VoidTovoid(),
      insertAfter: T$.ObjectNTovoid(),
      insertBefore: T$.ObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(LinkedListEntry))));
    dart.setGetterSignature(LinkedListEntry, () => dart.global.Object.setPrototypeOf({
      list: __t$LinkedListNOfE(),
      next: __t$EN(),
      previous: __t$EN()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(LinkedListEntry))));
    dart.setLibraryUri(LinkedListEntry, I[24]);
    dart.setFieldSignature(LinkedListEntry, () => dart.global.Object.setPrototypeOf({
      [_list$15]: {type: __t$LinkedListNOfE(), isConst: false, isFinal: false, libraryUri: I[24]},
      [_next$2]: {type: __t$EN(), isConst: false, isFinal: false},
      [_previous$2]: {type: __t$EN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(LinkedListEntry))));
    return LinkedListEntry;
  });
  collection.LinkedListEntry = collection.LinkedListEntry$();
  collection._MapBaseValueIterable$ = dart.generic((K, V) => {
    var __t$_MapBaseValueIterableOfK$V = () => (__t$_MapBaseValueIterableOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_MapBaseValueIterable<1,2>")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$IteratorOfV = () => (__t$IteratorOfV = dart.constFn(V[_eval]("core|Iterator<0>")))();
    var __t$_MapBaseValueIteratorOfK$V = () => (__t$_MapBaseValueIteratorOfK$V = dart.constFn(collection._MapBaseValueIterator$(K, V)))();
    var __t$EfficientLengthIterableOfV = () => (__t$EfficientLengthIterableOfV = dart.constFn(_internal.EfficientLengthIterable$(V)))();
    class _MapBaseValueIterable extends __t$EfficientLengthIterableOfV() {
      static ['_#new#tearOff'](K, V, _map) {
        if (_map == null) dart.nullFailed(I[46], 230, 30, "_map");
        return new (collection._MapBaseValueIterable$(K, V)).new(_map);
      }
      get length() {
        return this[_map$5][$length];
      }
      get isEmpty() {
        return this[_map$5][$isEmpty];
      }
      get isNotEmpty() {
        return this[_map$5][$isNotEmpty];
      }
      get first() {
        return V[_as](this[_map$5][$_get](this[_map$5][$keys][$first]));
      }
      get single() {
        return V[_as](this[_map$5][$_get](this[_map$5][$keys][$single]));
      }
      get last() {
        return V[_as](this[_map$5][$_get](this[_map$5][$keys][$last]));
      }
      get iterator() {
        return new (__t$_MapBaseValueIteratorOfK$V()).new(this[_map$5]);
      }
    }
    (_MapBaseValueIterable.new = function(_map) {
      if (_map == null) dart.nullFailed(I[46], 230, 30, "_map");
      this[_map$5] = _map;
      this.$ti = this.$ti || __t$_MapBaseValueIterableOfK$V();
      dart.global.Object.getPrototypeOf(_MapBaseValueIterable).new.call(this);
      ;
    }).prototype = _MapBaseValueIterable.prototype;
    dart.addRtiResources(_MapBaseValueIterable, ["collection|_MapBaseValueIterable", "_internal|HideEfficientLengthIterable", "core|Iterable"]);
    dart.setGetterSignature(_MapBaseValueIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfV(),
      [$iterator]: __t$IteratorOfV()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_MapBaseValueIterable))));
    dart.setLibraryUri(_MapBaseValueIterable, I[24]);
    dart.setFieldSignature(_MapBaseValueIterable, () => dart.global.Object.setPrototypeOf({[_map$5]: {type: __t$MapOfK$V(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_MapBaseValueIterable))));
    dart.defineExtensionAccessors(_MapBaseValueIterable, [
      'length',
      'isEmpty',
      'isNotEmpty',
      'first',
      'single',
      'last',
      'iterator'
    ]);
    return _MapBaseValueIterable;
  });
  collection._MapBaseValueIterable = collection._MapBaseValueIterable$();
  var _keys = dart.privateName(collection, "_keys");
  collection._MapBaseValueIterator$ = dart.generic((K, V) => {
    var __t$_MapBaseValueIteratorOfK$V = () => (__t$_MapBaseValueIteratorOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_MapBaseValueIterator<1,2>")))();
    var __t$IteratorOfK = () => (__t$IteratorOfK = dart.constFn(K[_eval]("core|Iterator<0>")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$VN = () => (__t$VN = dart.constFn(V[_eval]("0?")))();
    class _MapBaseValueIterator extends core.Object {
      static ['_#new#tearOff'](K, V, map) {
        if (map == null) dart.nullFailed(I[46], 251, 35, "map");
        return new (collection._MapBaseValueIterator$(K, V)).new(map);
      }
      moveNext() {
        if (dart.test(this[_keys].moveNext())) {
          this[_current$1] = this[_map$5][$_get](this[_keys].current);
          return true;
        }
        this[_current$1] = null;
        return false;
      }
      get current() {
        return V[_as](this[_current$1]);
      }
    }
    (_MapBaseValueIterator.new = function(map) {
      if (map == null) dart.nullFailed(I[46], 251, 35, "map");
      this[_current$1] = null;
      this[_map$5] = map;
      this[_keys] = map[$keys][$iterator];
      this.$ti = this.$ti || __t$_MapBaseValueIteratorOfK$V();
      ;
    }).prototype = _MapBaseValueIterator.prototype;
    dart.addRtiResources(_MapBaseValueIterator, ["collection|_MapBaseValueIterator", "core|Iterator"]);
    dart.setMethodSignature(_MapBaseValueIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_MapBaseValueIterator))));
    dart.setGetterSignature(_MapBaseValueIterator, () => dart.global.Object.setPrototypeOf({current: V}, dart.getGetters(dart.global.Object.getPrototypeOf(_MapBaseValueIterator))));
    dart.setLibraryUri(_MapBaseValueIterator, I[24]);
    dart.setFieldSignature(_MapBaseValueIterator, () => dart.global.Object.setPrototypeOf({
      [_keys]: {type: __t$IteratorOfK(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_map$5]: {type: __t$MapOfK$V(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_current$1]: {type: __t$VN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_MapBaseValueIterator))));
    return _MapBaseValueIterator;
  });
  collection._MapBaseValueIterator = collection._MapBaseValueIterator$();
  var _map$8 = dart.privateName(collection, "MapView._map");
  collection.MapView$ = dart.generic((K, V) => {
    var __t$MapViewOfK$V = () => (__t$MapViewOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|MapView<1,2>")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$IterableOfMapEntryOfK$V = () => (__t$IterableOfMapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Iterable<core|MapEntry<1,2>>")))();
    var __t$KAndVToV = () => (__t$KAndVToV = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("2(1,2)")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(~(1,2))")))();
    var __t$IterableOfK = () => (__t$IterableOfK = dart.constFn(K[_eval]("core|Iterable<0>")))();
    var __t$FnToMapOfK2$V2 = () => (__t$FnToMapOfK2$V2 = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<0^,1^>(core|MapEntry<0^,1^>(1,2))<core|Object?,core|Object?>")))();
    var __t$FnTovoid$ = () => (__t$FnTovoid$ = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(core|bool(1,2))")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$VToV = () => (__t$VToV = dart.constFn(V[_eval]("0(0)")))();
    var __t$VoidToNV = () => (__t$VoidToNV = dart.constFn(V[_eval]("0()?")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$ObjectNAndObjectNToV = () => (__t$ObjectNAndObjectNToV = dart.constFn(V[_eval]("0(core|Object?,core|Object?)")))();
    var __t$IterableOfV = () => (__t$IterableOfV = dart.constFn(V[_eval]("core|Iterable<0>")))();
    var __t$ObjectNAndObjectN__ToV = () => (__t$ObjectNAndObjectN__ToV = dart.constFn(V[_eval]("0(core|Object?,core|Object?{ifAbsent:core|Object?})")))();
    class MapView extends core.Object {
      get [_map$5]() {
        return this[_map$8];
      }
      set [_map$5](value) {
        super[_map$5] = value;
      }
      static ['_#new#tearOff'](K, V, map) {
        if (map == null) dart.nullFailed(I[46], 327, 27, "map");
        return new (collection.MapView$(K, V)).new(map);
      }
      cast(RK, RV) {
        return this[_map$5][$cast](RK, RV);
      }
      _get(key) {
        return this[_map$5][$_get](key);
      }
      _set(key, value$) {
        let value = value$;
        K[_as](key);
        V[_as](value);
        this[_map$5][$_set](key, value);
        return value$;
      }
      addAll(other) {
        __t$MapOfK$V()[_as](other);
        if (other == null) dart.nullFailed(I[46], 335, 25, "other");
        this[_map$5][$addAll](other);
      }
      clear() {
        this[_map$5][$clear]();
      }
      putIfAbsent(key, ifAbsent) {
        K[_as](key);
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[46], 343, 26, "ifAbsent");
        return this[_map$5][$putIfAbsent](key, ifAbsent);
      }
      containsKey(key) {
        return this[_map$5][$containsKey](key);
      }
      containsValue(value) {
        return this[_map$5][$containsValue](value);
      }
      forEach(action) {
        if (action == null) dart.nullFailed(I[46], 346, 21, "action");
        this[_map$5][$forEach](action);
      }
      get isEmpty() {
        return this[_map$5][$isEmpty];
      }
      get isNotEmpty() {
        return this[_map$5][$isNotEmpty];
      }
      get length() {
        return this[_map$5][$length];
      }
      get keys() {
        return this[_map$5][$keys];
      }
      remove(key) {
        return this[_map$5][$remove](key);
      }
      toString() {
        return dart.toString(this[_map$5]);
      }
      get values() {
        return this[_map$5][$values];
      }
      get entries() {
        return this[_map$5][$entries];
      }
      addEntries(entries) {
        __t$IterableOfMapEntryOfK$V()[_as](entries);
        if (entries == null) dart.nullFailed(I[46], 360, 44, "entries");
        this[_map$5][$addEntries](entries);
      }
      map(K2, V2, transform) {
        if (transform == null) dart.nullFailed(I[46], 364, 44, "transform");
        return this[_map$5][$map](K2, V2, transform);
      }
      update(key, update, opts) {
        K[_as](key);
        __t$VToV()[_as](update);
        if (update == null) dart.nullFailed(I[46], 367, 21, "update");
        let ifAbsent = opts && 'ifAbsent' in opts ? opts.ifAbsent : null;
        __t$VoidToNV()[_as](ifAbsent);
        return this[_map$5][$update](key, update, {ifAbsent: ifAbsent});
      }
      updateAll(update) {
        __t$KAndVToV()[_as](update);
        if (update == null) dart.nullFailed(I[46], 370, 20, "update");
        this[_map$5][$updateAll](update);
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[46], 374, 25, "test");
        this[_map$5][$removeWhere](test);
      }
    }
    (MapView.new = function(map) {
      if (map == null) dart.nullFailed(I[46], 327, 27, "map");
      this[_map$8] = map;
      this.$ti = this.$ti || __t$MapViewOfK$V();
      ;
    }).prototype = MapView.prototype;
    dart.addRtiResources(MapView, ["collection|MapView", "core|Map"]);
    dart.setMethodSignature(MapView, () => dart.global.Object.setPrototypeOf({
      cast: T$0.VoidToMapOfRK$RV(),
      [$cast]: T$0.VoidToMapOfRK$RV(),
      _get: __t$ObjectNToVN(),
      [$_get]: __t$ObjectNToVN(),
      _set: T$.ObjectNAndObjectNTovoid(),
      [$_set]: T$.ObjectNAndObjectNTovoid(),
      addAll: T$.ObjectNTovoid(),
      [$addAll]: T$.ObjectNTovoid(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid(),
      putIfAbsent: __t$ObjectNAndObjectNToV(),
      [$putIfAbsent]: __t$ObjectNAndObjectNToV(),
      containsKey: T$.ObjectNTobool(),
      [$containsKey]: T$.ObjectNTobool(),
      containsValue: T$.ObjectNTobool(),
      [$containsValue]: T$.ObjectNTobool(),
      forEach: __t$FnTovoid(),
      [$forEach]: __t$FnTovoid(),
      remove: __t$ObjectNToVN(),
      [$remove]: __t$ObjectNToVN(),
      addEntries: T$.ObjectNTovoid(),
      [$addEntries]: T$.ObjectNTovoid(),
      map: __t$FnToMapOfK2$V2(),
      [$map]: __t$FnToMapOfK2$V2(),
      update: __t$ObjectNAndObjectN__ToV(),
      [$update]: __t$ObjectNAndObjectN__ToV(),
      updateAll: T$.ObjectNTovoid(),
      [$updateAll]: T$.ObjectNTovoid(),
      removeWhere: __t$FnTovoid$(),
      [$removeWhere]: __t$FnTovoid$()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(MapView))));
    dart.setMethodsDefaultTypeArgSignature(MapView, () => dart.global.Object.setPrototypeOf({
      cast: [T$.dynamic(), T$.dynamic()],
      [$cast]: [T$.dynamic(), T$.dynamic()],
      map: [T$.dynamic(), T$.dynamic()],
      [$map]: [T$.dynamic(), T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(MapView))));
    dart.setGetterSignature(MapView, () => dart.global.Object.setPrototypeOf({
      isEmpty: T$.bool(),
      [$isEmpty]: T$.bool(),
      isNotEmpty: T$.bool(),
      [$isNotEmpty]: T$.bool(),
      length: T$.int(),
      [$length]: T$.int(),
      keys: __t$IterableOfK(),
      [$keys]: __t$IterableOfK(),
      values: __t$IterableOfV(),
      [$values]: __t$IterableOfV(),
      entries: __t$IterableOfMapEntryOfK$V(),
      [$entries]: __t$IterableOfMapEntryOfK$V()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(MapView))));
    dart.setLibraryUri(MapView, I[24]);
    dart.setFieldSignature(MapView, () => dart.global.Object.setPrototypeOf({[_map$5]: {type: __t$MapOfK$V(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(MapView))));
    dart.defineExtensionMethods(MapView, [
      'cast',
      '_get',
      '_set',
      'addAll',
      'clear',
      'putIfAbsent',
      'containsKey',
      'containsValue',
      'forEach',
      'remove',
      'toString',
      'addEntries',
      'map',
      'update',
      'updateAll',
      'removeWhere'
    ]);
    dart.defineExtensionAccessors(MapView, [
      'isEmpty',
      'isNotEmpty',
      'length',
      'keys',
      'values',
      'entries'
    ]);
    return MapView;
  });
  collection.MapView = collection.MapView$();
  collection.UnmodifiableMapView$ = dart.generic((K, V) => {
    var __t$UnmodifiableMapViewOfK$V = () => (__t$UnmodifiableMapViewOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|UnmodifiableMapView<1,2>")))();
    var __t$MapViewOfK$V = () => (__t$MapViewOfK$V = dart.constFn(collection.MapView$(K, V)))();
    var __t$_UnmodifiableMapMixinOfK$V = () => (__t$_UnmodifiableMapMixinOfK$V = dart.constFn(collection._UnmodifiableMapMixin$(K, V)))();
    const MapView__UnmodifiableMapMixin$36 = class MapView__UnmodifiableMapMixin extends __t$MapViewOfK$V() {};
    (MapView__UnmodifiableMapMixin$36.new = function(map) {
      dart.global.Object.getPrototypeOf(MapView__UnmodifiableMapMixin$36).new.call(this, map);
    }).prototype = MapView__UnmodifiableMapMixin$36.prototype;
    dart.applyMixin(MapView__UnmodifiableMapMixin$36, __t$_UnmodifiableMapMixinOfK$V());
    class UnmodifiableMapView extends MapView__UnmodifiableMapMixin$36 {
      static ['_#new#tearOff'](K, V, map) {
        if (map == null) dart.nullFailed(I[46], 397, 33, "map");
        return new (collection.UnmodifiableMapView$(K, V)).new(map);
      }
      cast(RK, RV) {
        return new (collection.UnmodifiableMapView$(RK, RV)).new(this[_map$5][$cast](RK, RV));
      }
    }
    (UnmodifiableMapView.new = function(map) {
      if (map == null) dart.nullFailed(I[46], 397, 33, "map");
      this.$ti = this.$ti || __t$UnmodifiableMapViewOfK$V();
      dart.global.Object.getPrototypeOf(UnmodifiableMapView).new.call(this, map);
      ;
    }).prototype = UnmodifiableMapView.prototype;
    dart.addRtiResources(UnmodifiableMapView, ["collection|UnmodifiableMapView"]);
    dart.setLibraryUri(UnmodifiableMapView, I[24]);
    dart.defineExtensionMethods(UnmodifiableMapView, ['cast']);
    return UnmodifiableMapView;
  });
  collection.UnmodifiableMapView = collection.UnmodifiableMapView$();
  collection._QueueIterable$ = dart.generic(E => {
    var __t$_QueueIterableOfE = () => (__t$_QueueIterableOfE = dart.constFn(E[_eval]("collection|_QueueIterable<0>")))();
    class _QueueIterable extends core.Object {
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (_QueueIterable.new = function() {
      this.$ti = this.$ti || __t$_QueueIterableOfE();
      ;
    }).prototype = _QueueIterable.prototype;
    dart.addRtiResources(_QueueIterable, ["collection|_QueueIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setLibraryUri(_QueueIterable, I[24]);
    return _QueueIterable;
  });
  collection._QueueIterable = collection._QueueIterable$();
  collection.Queue$ = dart.generic(E => {
    class Queue extends core.Object {
      static ['_#new#tearOff'](E) {
        return new (collection.ListQueue$(E)).new();
      }
      static ['_#from#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[96], 57, 31, "elements");
        return collection.ListQueue$(E).from(elements);
      }
      static ['_#of#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[96], 63, 32, "elements");
        return collection.ListQueue$(E).of(elements);
      }
      static castFrom(S, T, source) {
        if (source == null) dart.nullFailed(I[96], 81, 43, "source");
        return new (_internal.CastQueue$(S, T)).new(source);
      }
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (Queue[dart.mixinNew] = function() {
    }).prototype = Queue.prototype;
    dart.addRtiResources(Queue, ["collection|Queue", "core|Iterable", "collection|_QueueIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setStaticMethodSignature(Queue, () => ['new', 'from', 'of', 'castFrom']);
    dart.setLibraryUri(Queue, I[24]);
    return Queue;
  });
  collection.Queue = collection.Queue$();
  var _previousLink$0 = dart.privateName(collection, "_DoubleLinkedQueueEntry._previousLink");
  var _nextLink$0 = dart.privateName(collection, "_DoubleLinkedQueueEntry._nextLink");
  var _previousLink$1 = dart.privateName(collection, "_previousLink");
  var _nextLink$1 = dart.privateName(collection, "_nextLink");
  var _link$ = dart.privateName(collection, "_link");
  var _append = dart.privateName(collection, "_append");
  var _prepend = dart.privateName(collection, "_prepend");
  collection._DoubleLinkedQueueEntry$ = dart.generic(E => {
    var __t$_DoubleLinkedQueueEntryOfE = () => (__t$_DoubleLinkedQueueEntryOfE = dart.constFn(E[_eval]("collection|_DoubleLinkedQueueEntry<0>")))();
    var __t$_DoubleLinkedQueueEntryNOfE = () => (__t$_DoubleLinkedQueueEntryNOfE = dart.constFn(E[_eval]("collection|_DoubleLinkedQueueEntry<0>?")))();
    var __t$DoubleLinkedQueueNOfE = () => (__t$DoubleLinkedQueueNOfE = dart.constFn(E[_eval]("collection|DoubleLinkedQueue<0>?")))();
    var __t$_DoubleLinkedQueueEntryNOfEAnd_DoubleLinkedQueueEntryNOfETovoid = () => (__t$_DoubleLinkedQueueEntryNOfEAnd_DoubleLinkedQueueEntryNOfETovoid = dart.constFn(E[_eval]("~(collection|_DoubleLinkedQueueEntry<0>?,collection|_DoubleLinkedQueueEntry<0>?)")))();
    var __t$_DoubleLinkedQueueElementOfE = () => (__t$_DoubleLinkedQueueElementOfE = dart.constFn(collection._DoubleLinkedQueueElement$(E)))();
    class _DoubleLinkedQueueEntry extends core.Object {
      get [_previousLink$1]() {
        return this[_previousLink$0];
      }
      set [_previousLink$1](value) {
        this[_previousLink$0] = __t$_DoubleLinkedQueueEntryNOfE()[_as](value);
      }
      get [_nextLink$1]() {
        return this[_nextLink$0];
      }
      set [_nextLink$1](value) {
        this[_nextLink$0] = __t$_DoubleLinkedQueueEntryNOfE()[_as](value);
      }
      [_link$](previous, next) {
        let t$36144, t$36144$;
        this[_nextLink$1] = next;
        this[_previousLink$1] = previous;
        t$36144 = previous;
        t$36144 == null ? null : t$36144[_nextLink$1] = this;
        t$36144$ = next;
        t$36144$ == null ? null : t$36144$[_previousLink$1] = this;
      }
      [_unlink]() {
        let t$36144, t$36144$;
        t$36144 = this[_previousLink$1];
        t$36144 == null ? null : t$36144[_nextLink$1] = this[_nextLink$1];
        t$36144$ = this[_nextLink$1];
        t$36144$ == null ? null : t$36144$[_previousLink$1] = this[_previousLink$1];
        this[_previousLink$1] = this[_nextLink$1] = null;
      }
      [_append](element, queue) {
        E[_as](element);
        __t$DoubleLinkedQueueNOfE()[_as](queue);
        new (__t$_DoubleLinkedQueueElementOfE()).new(element, queue)[_link$](this, this[_nextLink$1]);
      }
      [_prepend](element, queue) {
        E[_as](element);
        __t$DoubleLinkedQueueNOfE()[_as](queue);
        new (__t$_DoubleLinkedQueueElementOfE()).new(element, queue)[_link$](this[_previousLink$1], this);
      }
    }
    (_DoubleLinkedQueueEntry.new = function() {
      this[_previousLink$0] = null;
      this[_nextLink$0] = null;
      this.$ti = this.$ti || __t$_DoubleLinkedQueueEntryOfE();
      ;
    }).prototype = _DoubleLinkedQueueEntry.prototype;
    dart.addRtiResources(_DoubleLinkedQueueEntry, ["collection|_DoubleLinkedQueueEntry"]);
    dart.setMethodSignature(_DoubleLinkedQueueEntry, () => dart.global.Object.setPrototypeOf({
      [_link$]: __t$_DoubleLinkedQueueEntryNOfEAnd_DoubleLinkedQueueEntryNOfETovoid(),
      [_unlink]: T$.VoidTovoid(),
      [_append]: T$.ObjectNAndObjectNTovoid(),
      [_prepend]: T$.ObjectNAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueEntry))));
    dart.setLibraryUri(_DoubleLinkedQueueEntry, I[24]);
    dart.setFieldSignature(_DoubleLinkedQueueEntry, () => dart.global.Object.setPrototypeOf({
      [_previousLink$1]: {type: __t$_DoubleLinkedQueueEntryNOfE(), isConst: false, isFinal: false, libraryUri: I[24]},
      [_nextLink$1]: {type: __t$_DoubleLinkedQueueEntryNOfE(), isConst: false, isFinal: false, libraryUri: I[24]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueEntry))));
    return _DoubleLinkedQueueEntry;
  });
  collection._DoubleLinkedQueueEntry = collection._DoubleLinkedQueueEntry$();
  var _queue$ = dart.privateName(collection, "_DoubleLinkedQueueElement._queue");
  var element$0 = dart.privateName(collection, "_DoubleLinkedQueueElement.element");
  var _queue$0 = dart.privateName(collection, "_queue");
  var _elementCount = dart.privateName(collection, "_elementCount");
  var _remove = dart.privateName(collection, "_remove");
  var _asNonSentinelEntry = dart.privateName(collection, "_asNonSentinelEntry");
  var _previousLink_ = dart.privateName(collection, "_previousLink=");
  var _nextLink_ = dart.privateName(collection, "_nextLink=");
  collection._DoubleLinkedQueueElement$ = dart.generic(E => {
    var __t$_DoubleLinkedQueueElementOfE = () => (__t$_DoubleLinkedQueueElementOfE = dart.constFn(E[_eval]("collection|_DoubleLinkedQueueElement<0>")))();
    var __t$DoubleLinkedQueueNOfE = () => (__t$DoubleLinkedQueueNOfE = dart.constFn(E[_eval]("collection|DoubleLinkedQueue<0>?")))();
    var __t$DoubleLinkedQueueEntryNOfE = () => (__t$DoubleLinkedQueueEntryNOfE = dart.constFn(E[_eval]("_internal|DoubleLinkedQueueEntry<0>?")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    var __t$VoidTo_DoubleLinkedQueueElementOfE = () => (__t$VoidTo_DoubleLinkedQueueElementOfE = dart.constFn(E[_eval]("collection|_DoubleLinkedQueueElement<0>()")))();
    var __t$VoidToDoubleLinkedQueueEntryNOfE = () => (__t$VoidToDoubleLinkedQueueEntryNOfE = dart.constFn(E[_eval]("_internal|DoubleLinkedQueueEntry<0>?()")))();
    var __t$_DoubleLinkedQueueEntryOfE = () => (__t$_DoubleLinkedQueueEntryOfE = dart.constFn(collection._DoubleLinkedQueueEntry$(E)))();
    class _DoubleLinkedQueueElement extends __t$_DoubleLinkedQueueEntryOfE() {
      get [_queue$0]() {
        return this[_queue$];
      }
      set [_queue$0](value) {
        this[_queue$] = __t$DoubleLinkedQueueNOfE()[_as](value);
      }
      get element() {
        return this[element$0];
      }
      set element(value) {
        this[element$0] = E[_as](value);
      }
      static ['_#new#tearOff'](E, element, _queue) {
        return new (collection._DoubleLinkedQueueElement$(E)).new(element, _queue);
      }
      append(e) {
        let t$36144;
        E[_as](e);
        this[_append](e, this[_queue$0]);
        t$36144 = this[_queue$0];
        t$36144 == null ? null : t$36144[_elementCount] = dart.notNull(t$36144[_elementCount]) + 1;
      }
      prepend(e) {
        let t$36144;
        E[_as](e);
        this[_prepend](e, this[_queue$0]);
        t$36144 = this[_queue$0];
        t$36144 == null ? null : t$36144[_elementCount] = dart.notNull(t$36144[_elementCount]) + 1;
      }
      [_remove]() {
        this[_queue$0] = null;
        this[_unlink]();
        return this.element;
      }
      remove() {
        let t$36144;
        t$36144 = this[_queue$0];
        t$36144 == null ? null : t$36144[_elementCount] = dart.notNull(t$36144[_elementCount]) - 1;
        return this[_remove]();
      }
      [_asNonSentinelEntry]() {
        return this;
      }
      previousEntry() {
        let t$36144;
        t$36144 = this[_previousLink$1];
        return t$36144 == null ? null : t$36144[_asNonSentinelEntry]();
      }
      nextEntry() {
        let t$36144;
        t$36144 = this[_nextLink$1];
        return t$36144 == null ? null : t$36144[_asNonSentinelEntry]();
      }
      get [_previousLink$]() {
        return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[120] || CT.C120)));
      }
      set [_previousLink$](value) {
        __t$DoubleLinkedQueueEntryNOfE()[_as](value);
        return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.setter(C[121] || CT.C121, value)));
      }
      get [_nextLink$]() {
        return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[122] || CT.C122)));
      }
      set [_nextLink$](value) {
        __t$DoubleLinkedQueueEntryNOfE()[_as](value);
        return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.setter(C[123] || CT.C123, value)));
      }
      [_link](previous, next) {
        __t$DoubleLinkedQueueEntryNOfE()[_as](previous);
        __t$DoubleLinkedQueueEntryNOfE()[_as](next);
        return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.method(C[124] || CT.C124, null, [previous, next], null)));
      }
    }
    (_DoubleLinkedQueueElement.new = function(element, _queue) {
      this[element$0] = element;
      this[_queue$] = _queue;
      this.$ti = this.$ti || __t$_DoubleLinkedQueueElementOfE();
      dart.global.Object.getPrototypeOf(_DoubleLinkedQueueElement).new.call(this);
      ;
    }).prototype = _DoubleLinkedQueueElement.prototype;
    dart.addRtiResources(_DoubleLinkedQueueElement, ["collection|_DoubleLinkedQueueElement", "_internal|DoubleLinkedQueueEntry"]);
    dart.setMethodSignature(_DoubleLinkedQueueElement, () => dart.global.Object.setPrototypeOf({
      append: T$.ObjectNTovoid(),
      prepend: T$.ObjectNTovoid(),
      [_remove]: __t$VoidToE(),
      remove: __t$VoidToE(),
      [_asNonSentinelEntry]: __t$VoidTo_DoubleLinkedQueueElementOfE(),
      previousEntry: __t$VoidToDoubleLinkedQueueEntryNOfE(),
      nextEntry: __t$VoidToDoubleLinkedQueueEntryNOfE(),
      [_link]: T$.ObjectNAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueElement))));
    dart.setGetterSignature(_DoubleLinkedQueueElement, () => dart.global.Object.setPrototypeOf({
      [_previousLink$]: __t$DoubleLinkedQueueEntryNOfE(),
      [_nextLink$]: __t$DoubleLinkedQueueEntryNOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueElement))));
    dart.setSetterSignature(_DoubleLinkedQueueElement, () => dart.global.Object.setPrototypeOf({
      [_previousLink$]: T$.ObjectN(),
      [_nextLink$]: T$.ObjectN()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueElement))));
    dart.setLibraryUri(_DoubleLinkedQueueElement, I[24]);
    dart.setFieldSignature(_DoubleLinkedQueueElement, () => dart.global.Object.setPrototypeOf({
      [_queue$0]: {type: __t$DoubleLinkedQueueNOfE(), isConst: false, isFinal: false, libraryUri: I[24]},
      element: {type: E, isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueElement))));
    return _DoubleLinkedQueueElement;
  });
  collection._DoubleLinkedQueueElement = collection._DoubleLinkedQueueElement$();
  collection._DoubleLinkedQueueSentinel$ = dart.generic(E => {
    var __t$_DoubleLinkedQueueSentinelOfE = () => (__t$_DoubleLinkedQueueSentinelOfE = dart.constFn(E[_eval]("collection|_DoubleLinkedQueueSentinel<0>")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    var __t$_DoubleLinkedQueueEntryOfE = () => (__t$_DoubleLinkedQueueEntryOfE = dart.constFn(collection._DoubleLinkedQueueEntry$(E)))();
    class _DoubleLinkedQueueSentinel extends __t$_DoubleLinkedQueueEntryOfE() {
      static ['_#new#tearOff'](E) {
        return new (collection._DoubleLinkedQueueSentinel$(E)).new();
      }
      [_asNonSentinelEntry]() {
        return null;
      }
      [_remove]() {
        dart.throw(_internal.IterableElementError.noElement());
      }
      get element() {
        dart.throw(_internal.IterableElementError.noElement());
      }
    }
    (_DoubleLinkedQueueSentinel.new = function() {
      this.$ti = this.$ti || __t$_DoubleLinkedQueueSentinelOfE();
      dart.global.Object.getPrototypeOf(_DoubleLinkedQueueSentinel).new.call(this);
      this[_previousLink$1] = this;
      this[_nextLink$1] = this;
    }).prototype = _DoubleLinkedQueueSentinel.prototype;
    dart.addRtiResources(_DoubleLinkedQueueSentinel, ["collection|_DoubleLinkedQueueSentinel"]);
    dart.setMethodSignature(_DoubleLinkedQueueSentinel, () => dart.global.Object.setPrototypeOf({
      [_asNonSentinelEntry]: T$0.VoidToNull(),
      [_remove]: __t$VoidToE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueSentinel))));
    dart.setGetterSignature(_DoubleLinkedQueueSentinel, () => dart.global.Object.setPrototypeOf({element: E}, dart.getGetters(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueSentinel))));
    dart.setLibraryUri(_DoubleLinkedQueueSentinel, I[24]);
    return _DoubleLinkedQueueSentinel;
  });
  collection._DoubleLinkedQueueSentinel = collection._DoubleLinkedQueueSentinel$();
  var _sentinel = dart.privateName(collection, "_sentinel");
  collection.DoubleLinkedQueue$ = dart.generic(E => {
    var __t$DoubleLinkedQueueOfE = () => (__t$DoubleLinkedQueueOfE = dart.constFn(E[_eval]("collection|DoubleLinkedQueue<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    var __t$FnAndboolTovoid = () => (__t$FnAndboolTovoid = dart.constFn(E[_eval]("~(core|bool(0),core|bool)")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~(core|bool(0))")))();
    var __t$VoidToDoubleLinkedQueueEntryNOfE = () => (__t$VoidToDoubleLinkedQueueEntryNOfE = dart.constFn(E[_eval]("_internal|DoubleLinkedQueueEntry<0>?()")))();
    var __t$FnTovoid$ = () => (__t$FnTovoid$ = dart.constFn(E[_eval]("~(~(_internal|DoubleLinkedQueueEntry<0>))")))();
    var __t$_DoubleLinkedQueueIteratorOfE = () => (__t$_DoubleLinkedQueueIteratorOfE = dart.constFn(E[_eval]("collection|_DoubleLinkedQueueIterator<0>")))();
    var __t$_DoubleLinkedQueueSentinelOfE = () => (__t$_DoubleLinkedQueueSentinelOfE = dart.constFn(E[_eval]("collection|_DoubleLinkedQueueSentinel<0>")))();
    var __t$_DoubleLinkedQueueSentinelOfE$ = () => (__t$_DoubleLinkedQueueSentinelOfE$ = dart.constFn(collection._DoubleLinkedQueueSentinel$(E)))();
    var __t$_DoubleLinkedQueueIteratorOfE$ = () => (__t$_DoubleLinkedQueueIteratorOfE$ = dart.constFn(collection._DoubleLinkedQueueIterator$(E)))();
    var __t$IterableOfE$ = () => (__t$IterableOfE$ = dart.constFn(core.Iterable$(E)))();
    class DoubleLinkedQueue extends __t$IterableOfE$() {
      static ['_#new#tearOff'](E) {
        return new (collection.DoubleLinkedQueue$(E)).new();
      }
      static from(elements) {
        if (elements == null) dart.nullFailed(I[96], 291, 52, "elements");
        let list = new (collection.DoubleLinkedQueue$(E)).new();
        for (let e of elements) {
          list.addLast(E[_as](e));
        }
        return list;
      }
      static ['_#from#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[96], 291, 52, "elements");
        return collection.DoubleLinkedQueue$(E).from(elements);
      }
      static of(elements) {
        let t$36144;
        if (elements == null) dart.nullFailed(I[96], 303, 44, "elements");
        t$36144 = new (collection.DoubleLinkedQueue$(E)).new();
        return (() => {
          t$36144.addAll(elements);
          return t$36144;
        })();
      }
      static ['_#of#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[96], 303, 44, "elements");
        return collection.DoubleLinkedQueue$(E).of(elements);
      }
      cast(R) {
        return collection.Queue.castFrom(E, R, this);
      }
      get length() {
        return this[_elementCount];
      }
      addLast(value) {
        E[_as](value);
        this[_sentinel][_prepend](value, this);
        this[_elementCount] = dart.notNull(this[_elementCount]) + 1;
      }
      addFirst(value) {
        E[_as](value);
        this[_sentinel][_append](value, this);
        this[_elementCount] = dart.notNull(this[_elementCount]) + 1;
      }
      add(value) {
        E[_as](value);
        this[_sentinel][_prepend](value, this);
        this[_elementCount] = dart.notNull(this[_elementCount]) + 1;
      }
      addAll(iterable) {
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[96], 325, 27, "iterable");
        for (let value of iterable) {
          this[_sentinel][_prepend](value, this);
          this[_elementCount] = dart.notNull(this[_elementCount]) + 1;
        }
      }
      removeLast() {
        let result = dart.nullCheck(this[_sentinel][_previousLink$1])[_remove]();
        this[_elementCount] = dart.notNull(this[_elementCount]) - 1;
        return result;
      }
      removeFirst() {
        let result = dart.nullCheck(this[_sentinel][_nextLink$1])[_remove]();
        this[_elementCount] = dart.notNull(this[_elementCount]) - 1;
        return result;
      }
      remove(o) {
        let entry = dart.nullCheck(this[_sentinel][_nextLink$1]);
        while (true) {
          let elementEntry = entry[_asNonSentinelEntry]();
          if (elementEntry == null) return false;
          let equals = dart.equals(elementEntry.element, o);
          if (this !== elementEntry[_queue$0]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
          if (equals) {
            entry[_remove]();
            this[_elementCount] = dart.notNull(this[_elementCount]) - 1;
            return true;
          }
          entry = dart.nullCheck(entry[_nextLink$1]);
        }
      }
      [_filter](test, removeMatching) {
        if (test == null) dart.nullFailed(I[96], 365, 21, "test");
        if (removeMatching == null) dart.nullFailed(I[96], 365, 43, "removeMatching");
        let entry = dart.nullCheck(this[_sentinel][_nextLink$1]);
        while (true) {
          let elementEntry = entry[_asNonSentinelEntry]();
          if (elementEntry == null) return;
          let matches = test(elementEntry.element);
          if (this !== elementEntry[_queue$0]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
          let next = dart.nullCheck(entry[_nextLink$1]);
          if (removeMatching == matches) {
            elementEntry[_remove]();
            this[_elementCount] = dart.notNull(this[_elementCount]) - 1;
          }
          entry = next;
        }
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[96], 384, 25, "test");
        this[_filter](test, true);
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[96], 388, 25, "test");
        this[_filter](test, false);
      }
      get first() {
        return dart.nullCheck(this[_sentinel][_nextLink$1]).element;
      }
      get last() {
        return dart.nullCheck(this[_sentinel][_previousLink$1]).element;
      }
      get single() {
        if (this[_sentinel][_nextLink$1] == this[_sentinel][_previousLink$1]) {
          return dart.nullCheck(this[_sentinel][_nextLink$1]).element;
        }
        dart.throw(_internal.IterableElementError.tooMany());
      }
      firstEntry() {
        return dart.nullCheck(this[_sentinel][_nextLink$1])[_asNonSentinelEntry]();
      }
      lastEntry() {
        return dart.nullCheck(this[_sentinel][_previousLink$1])[_asNonSentinelEntry]();
      }
      get isEmpty() {
        return this[_sentinel][_nextLink$1] == this[_sentinel];
      }
      clear() {
        let t$36144;
        let cursor = dart.nullCheck(this[_sentinel][_nextLink$1]);
        while (true) {
          let entry = cursor[_asNonSentinelEntry]();
          if (entry == null) break;
          cursor = dart.nullCheck(cursor[_nextLink$1]);
          t$36144 = entry;
          (() => {
            t$36144[_nextLink$1] = null;
            t$36144[_previousLink$1] = null;
            t$36144[_queue$0] = null;
            return t$36144;
          })();
        }
        this[_sentinel][_nextLink$1] = this[_sentinel];
        this[_sentinel][_previousLink$1] = this[_sentinel];
        this[_elementCount] = 0;
      }
      forEachEntry(action) {
        if (action == null) dart.nullFailed(I[96], 467, 26, "action");
        let cursor = dart.nullCheck(this[_sentinel][_nextLink$1]);
        while (true) {
          let element = cursor[_asNonSentinelEntry]();
          if (element == null) break;
          if (element[_queue$0] !== this) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
          cursor = dart.nullCheck(cursor[_nextLink$1]);
          action(element);
          if (this === element[_queue$0]) {
            cursor = dart.nullCheck(element[_nextLink$1]);
          }
        }
      }
      get iterator() {
        return new (__t$_DoubleLinkedQueueIteratorOfE$()).new(this);
      }
      toString() {
        return core.Iterable.iterableToFullString(this, "{", "}");
      }
    }
    (DoubleLinkedQueue.new = function() {
      this[_sentinel] = new (__t$_DoubleLinkedQueueSentinelOfE$()).new();
      this[_elementCount] = 0;
      this.$ti = this.$ti || __t$DoubleLinkedQueueOfE();
      dart.global.Object.getPrototypeOf(DoubleLinkedQueue).new.call(this);
      ;
    }).prototype = DoubleLinkedQueue.prototype;
    dart.addRtiResources(DoubleLinkedQueue, ["collection|DoubleLinkedQueue", "collection|Queue", "core|Iterable", "collection|_QueueIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(DoubleLinkedQueue, () => dart.global.Object.setPrototypeOf({
      cast: T$0.VoidToQueueOfR(),
      [$cast]: T$0.VoidToQueueOfR(),
      addLast: T$.ObjectNTovoid(),
      addFirst: T$.ObjectNTovoid(),
      add: T$.ObjectNTovoid(),
      addAll: T$.ObjectNTovoid(),
      removeLast: __t$VoidToE(),
      removeFirst: __t$VoidToE(),
      remove: T$.ObjectNTobool(),
      [_filter]: __t$FnAndboolTovoid(),
      removeWhere: __t$FnTovoid(),
      retainWhere: __t$FnTovoid(),
      firstEntry: __t$VoidToDoubleLinkedQueueEntryNOfE(),
      lastEntry: __t$VoidToDoubleLinkedQueueEntryNOfE(),
      clear: T$.VoidTovoid(),
      forEachEntry: __t$FnTovoid$()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(DoubleLinkedQueue))));
    dart.setMethodsDefaultTypeArgSignature(DoubleLinkedQueue, () => dart.global.Object.setPrototypeOf({
      cast: [T$.dynamic()],
      [$cast]: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(DoubleLinkedQueue))));
    dart.setStaticMethodSignature(DoubleLinkedQueue, () => ['from', 'of']);
    dart.setGetterSignature(DoubleLinkedQueue, () => dart.global.Object.setPrototypeOf({
      iterator: __t$_DoubleLinkedQueueIteratorOfE(),
      [$iterator]: __t$_DoubleLinkedQueueIteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(DoubleLinkedQueue))));
    dart.setLibraryUri(DoubleLinkedQueue, I[24]);
    dart.setFieldSignature(DoubleLinkedQueue, () => dart.global.Object.setPrototypeOf({
      [_sentinel]: {type: __t$_DoubleLinkedQueueSentinelOfE(), isConst: false, isFinal: true, libraryUri: I[24]},
      [_elementCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(DoubleLinkedQueue))));
    dart.defineExtensionMethods(DoubleLinkedQueue, ['cast', 'toString']);
    dart.defineExtensionAccessors(DoubleLinkedQueue, [
      'length',
      'first',
      'last',
      'single',
      'isEmpty',
      'iterator'
    ]);
    return DoubleLinkedQueue;
  });
  collection.DoubleLinkedQueue = collection.DoubleLinkedQueue$();
  var _nextEntry = dart.privateName(collection, "_nextEntry");
  collection._DoubleLinkedQueueIterator$ = dart.generic(E => {
    var __t$_DoubleLinkedQueueIteratorOfE = () => (__t$_DoubleLinkedQueueIteratorOfE = dart.constFn(E[_eval]("collection|_DoubleLinkedQueueIterator<0>")))();
    var __t$DoubleLinkedQueueNOfE = () => (__t$DoubleLinkedQueueNOfE = dart.constFn(E[_eval]("collection|DoubleLinkedQueue<0>?")))();
    var __t$_DoubleLinkedQueueEntryNOfE = () => (__t$_DoubleLinkedQueueEntryNOfE = dart.constFn(E[_eval]("collection|_DoubleLinkedQueueEntry<0>?")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    class _DoubleLinkedQueueIterator extends core.Object {
      static ['_#new#tearOff'](E, _queue) {
        if (_queue == null) dart.nullFailed(I[96], 504, 56, "_queue");
        return new (collection._DoubleLinkedQueueIterator$(E)).new(_queue);
      }
      moveNext() {
        let t$36144;
        let nextElement = (t$36144 = this[_nextEntry], t$36144 == null ? null : t$36144[_asNonSentinelEntry]());
        if (nextElement == null) {
          this[_current$1] = null;
          this[_nextEntry] = null;
          this[_queue$0] = null;
          return false;
        }
        if (this[_queue$0] != nextElement[_queue$0]) {
          dart.throw(new core.ConcurrentModificationError.new(this[_queue$0]));
        }
        this[_current$1] = nextElement.element;
        this[_nextEntry] = nextElement[_nextLink$1];
        return true;
      }
      get current() {
        return E[_as](this[_current$1]);
      }
    }
    (_DoubleLinkedQueueIterator.new = function(_queue) {
      if (_queue == null) dart.nullFailed(I[96], 504, 56, "_queue");
      this[_current$1] = null;
      this[_queue$0] = _queue;
      this[_nextEntry] = _queue[_sentinel][_nextLink$1];
      this.$ti = this.$ti || __t$_DoubleLinkedQueueIteratorOfE();
      ;
    }).prototype = _DoubleLinkedQueueIterator.prototype;
    dart.addRtiResources(_DoubleLinkedQueueIterator, ["collection|_DoubleLinkedQueueIterator", "core|Iterator"]);
    dart.setMethodSignature(_DoubleLinkedQueueIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueIterator))));
    dart.setGetterSignature(_DoubleLinkedQueueIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueIterator))));
    dart.setLibraryUri(_DoubleLinkedQueueIterator, I[24]);
    dart.setFieldSignature(_DoubleLinkedQueueIterator, () => dart.global.Object.setPrototypeOf({
      [_queue$0]: {type: __t$DoubleLinkedQueueNOfE(), isConst: false, isFinal: false, libraryUri: I[24]},
      [_nextEntry]: {type: __t$_DoubleLinkedQueueEntryNOfE(), isConst: false, isFinal: false, libraryUri: I[24]},
      [_current$1]: {type: __t$EN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_DoubleLinkedQueueIterator))));
    return _DoubleLinkedQueueIterator;
  });
  collection._DoubleLinkedQueueIterator = collection._DoubleLinkedQueueIterator$();
  var _head = dart.privateName(collection, "_head");
  var _tail = dart.privateName(collection, "_tail");
  var _table = dart.privateName(collection, "_table");
  var _checkModification = dart.privateName(collection, "_checkModification");
  var _add$ = dart.privateName(collection, "_add");
  var _preGrow = dart.privateName(collection, "_preGrow");
  var _filterWhere = dart.privateName(collection, "_filterWhere");
  var _grow$ = dart.privateName(collection, "_grow");
  var _writeToList = dart.privateName(collection, "_writeToList");
  collection.ListQueue$ = dart.generic(E => {
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    var __t$ListQueueOfE = () => (__t$ListQueueOfE = dart.constFn(E[_eval]("collection|ListQueue<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(E[_eval]("core|List<0>")))();
    var __t$FnAndboolTovoid = () => (__t$FnAndboolTovoid = dart.constFn(E[_eval]("~(core|bool(0),core|bool)")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~(core|bool(0))")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    var __t$ETovoid = () => (__t$ETovoid = dart.constFn(E[_eval]("~(0)")))();
    var __t$ListOfENToint = () => (__t$ListOfENToint = dart.constFn(E[_eval]("core|int(core|List<0?>)")))();
    var __t$ListOfEN = () => (__t$ListOfEN = dart.constFn(E[_eval]("core|List<0?>")))();
    var __t$ListOfEN$ = () => (__t$ListOfEN$ = dart.constFn(core.List$(__t$EN())))();
    var __t$_ListQueueIteratorOfE = () => (__t$_ListQueueIteratorOfE = dart.constFn(collection._ListQueueIterator$(E)))();
    var __t$ListOfE$ = () => (__t$ListOfE$ = dart.constFn(core.List$(E)))();
    var __t$ListIterableOfE = () => (__t$ListIterableOfE = dart.constFn(_internal.ListIterable$(E)))();
    class ListQueue extends __t$ListIterableOfE() {
      static ['_#new#tearOff'](E, initialCapacity = null) {
        return new (collection.ListQueue$(E)).new(initialCapacity);
      }
      static _calculateCapacity(initialCapacity) {
        if (initialCapacity == null || dart.notNull(initialCapacity) < 8) {
          return 8;
        } else if (!dart.test(collection.ListQueue._isPowerOf2(initialCapacity))) {
          return collection.ListQueue._nextPowerOf2(initialCapacity);
        }
        if (!dart.test(collection.ListQueue._isPowerOf2(initialCapacity))) dart.assertFailed(null, I[96], 613, 12, "_isPowerOf2(initialCapacity)");
        return initialCapacity;
      }
      static ['_#from#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[96], 636, 44, "elements");
        return collection.ListQueue$(E).from(elements);
      }
      static from(elements) {
        if (elements == null) dart.nullFailed(I[96], 636, 44, "elements");
        if (T$.List()[_is](elements)) {
          let length = elements[$length];
          let queue = new (collection.ListQueue$(E)).new(dart.notNull(length) + 1);
          if (!(dart.notNull(queue[_table][$length]) > dart.notNull(length))) dart.assertFailed(null, I[96], 640, 14, "queue._table.length > length");
          for (let i = 0; i < dart.notNull(length); i = i + 1) {
            queue[_table][$_set](i, E[_as](elements[$_get](i)));
          }
          queue[_tail] = length;
          return queue;
        } else {
          let capacity = 8;
          if (T$.EfficientLengthIterable()[_is](elements)) {
            capacity = elements[$length];
          }
          let result = new (collection.ListQueue$(E)).new(capacity);
          for (let element of elements) {
            result.addLast(E[_as](element));
          }
          return result;
        }
      }
      static ['_#of#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[96], 669, 36, "elements");
        return collection.ListQueue$(E).of(elements);
      }
      static of(elements) {
        let t$36144;
        if (elements == null) dart.nullFailed(I[96], 669, 36, "elements");
        t$36144 = new (collection.ListQueue$(E)).new();
        return (() => {
          t$36144.addAll(elements);
          return t$36144;
        })();
      }
      cast(R) {
        return collection.Queue.castFrom(E, R, this);
      }
      get iterator() {
        return new (__t$_ListQueueIteratorOfE()).new(this);
      }
      forEach(f) {
        if (f == null) dart.nullFailed(I[96], 677, 21, "f");
        let modificationCount = this[_modificationCount];
        for (let i = this[_head]; i != this[_tail]; i = (dart.notNull(i) + 1 & dart.notNull(this[_table][$length]) - 1) >>> 0) {
          f(E[_as](this[_table][$_get](i)));
          this[_checkModification](modificationCount);
        }
      }
      get isEmpty() {
        return this[_head] == this[_tail];
      }
      get length() {
        return (dart.notNull(this[_tail]) - dart.notNull(this[_head]) & dart.notNull(this[_table][$length]) - 1) >>> 0;
      }
      get first() {
        if (this[_head] == this[_tail]) dart.throw(_internal.IterableElementError.noElement());
        return E[_as](this[_table][$_get](this[_head]));
      }
      get last() {
        if (this[_head] == this[_tail]) dart.throw(_internal.IterableElementError.noElement());
        return E[_as](this[_table][$_get]((dart.notNull(this[_tail]) - 1 & dart.notNull(this[_table][$length]) - 1) >>> 0));
      }
      get single() {
        if (this[_head] == this[_tail]) dart.throw(_internal.IterableElementError.noElement());
        if (dart.notNull(this.length) > 1) dart.throw(_internal.IterableElementError.tooMany());
        return E[_as](this[_table][$_get](this[_head]));
      }
      elementAt(index) {
        if (index == null) dart.nullFailed(I[96], 705, 19, "index");
        core.IndexError.check(index, this.length, {indexable: this});
        return E[_as](this[_table][$_get]((dart.notNull(this[_head]) + dart.notNull(index) & dart.notNull(this[_table][$length]) - 1) >>> 0));
      }
      toList(opts) {
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[96], 710, 24, "growable");
        let mask = dart.notNull(this[_table][$length]) - 1;
        let length = (dart.notNull(this[_tail]) - dart.notNull(this[_head]) & mask) >>> 0;
        if (length === 0) return __t$ListOfE$().empty({growable: growable});
        let list = __t$ListOfE$().filled(length, this.first, {growable: growable});
        for (let i = 0; i < length; i = i + 1) {
          list[$_set](i, E[_as](this[_table][$_get]((dart.notNull(this[_head]) + i & mask) >>> 0)));
        }
        return list;
      }
      add(value) {
        E[_as](value);
        this[_add$](value);
      }
      addAll(elements) {
        __t$IterableOfE()[_as](elements);
        if (elements == null) dart.nullFailed(I[96], 728, 27, "elements");
        if (__t$ListOfE()[_is](elements)) {
          let list = elements;
          let addCount = list[$length];
          let length = this.length;
          if (dart.notNull(length) + dart.notNull(addCount) >= dart.notNull(this[_table][$length])) {
            this[_preGrow](dart.notNull(length) + dart.notNull(addCount));
            this[_table][$setRange](length, dart.notNull(length) + dart.notNull(addCount), list, 0);
            this[_tail] = dart.notNull(this[_tail]) + dart.notNull(addCount);
          } else {
            let endSpace = dart.notNull(this[_table][$length]) - dart.notNull(this[_tail]);
            if (dart.notNull(addCount) < endSpace) {
              this[_table][$setRange](this[_tail], dart.notNull(this[_tail]) + dart.notNull(addCount), list, 0);
              this[_tail] = dart.notNull(this[_tail]) + dart.notNull(addCount);
            } else {
              let preSpace = dart.notNull(addCount) - endSpace;
              this[_table][$setRange](this[_tail], dart.notNull(this[_tail]) + endSpace, list, 0);
              this[_table][$setRange](0, preSpace, list, endSpace);
              this[_tail] = preSpace;
            }
          }
          this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        } else {
          for (let element of elements)
            this[_add$](element);
        }
      }
      remove(value) {
        for (let i = this[_head]; i != this[_tail]; i = (dart.notNull(i) + 1 & dart.notNull(this[_table][$length]) - 1) >>> 0) {
          let element = this[_table][$_get](i);
          if (dart.equals(element, value)) {
            this[_remove](i);
            this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
            return true;
          }
        }
        return false;
      }
      [_filterWhere](test, removeMatching) {
        if (test == null) dart.nullFailed(I[96], 769, 26, "test");
        if (removeMatching == null) dart.nullFailed(I[96], 769, 48, "removeMatching");
        let modificationCount = this[_modificationCount];
        let i = this[_head];
        while (i != this[_tail]) {
          let element = E[_as](this[_table][$_get](i));
          let remove = removeMatching == test(element);
          this[_checkModification](modificationCount);
          if (remove) {
            i = this[_remove](i);
            modificationCount = this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
          } else {
            i = (dart.notNull(i) + 1 & dart.notNull(this[_table][$length]) - 1) >>> 0;
          }
        }
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[96], 789, 25, "test");
        this[_filterWhere](test, true);
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[96], 797, 25, "test");
        this[_filterWhere](test, false);
      }
      clear() {
        if (this[_head] != this[_tail]) {
          for (let i = this[_head]; i != this[_tail]; i = (dart.notNull(i) + 1 & dart.notNull(this[_table][$length]) - 1) >>> 0) {
            this[_table][$_set](i, null);
          }
          this[_head] = this[_tail] = 0;
          this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        }
      }
      toString() {
        return core.Iterable.iterableToFullString(this, "{", "}");
      }
      addLast(value) {
        E[_as](value);
        this[_add$](value);
      }
      addFirst(value) {
        E[_as](value);
        this[_head] = (dart.notNull(this[_head]) - 1 & dart.notNull(this[_table][$length]) - 1) >>> 0;
        this[_table][$_set](this[_head], value);
        if (this[_head] == this[_tail]) this[_grow$]();
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
      }
      removeFirst() {
        if (this[_head] == this[_tail]) dart.throw(_internal.IterableElementError.noElement());
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        let result = E[_as](this[_table][$_get](this[_head]));
        this[_table][$_set](this[_head], null);
        this[_head] = (dart.notNull(this[_head]) + 1 & dart.notNull(this[_table][$length]) - 1) >>> 0;
        return result;
      }
      removeLast() {
        if (this[_head] == this[_tail]) dart.throw(_internal.IterableElementError.noElement());
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        this[_tail] = (dart.notNull(this[_tail]) - 1 & dart.notNull(this[_table][$length]) - 1) >>> 0;
        let result = E[_as](this[_table][$_get](this[_tail]));
        this[_table][$_set](this[_tail], null);
        return result;
      }
      static _isPowerOf2(number) {
        if (number == null) dart.nullFailed(I[96], 849, 31, "number");
        return (dart.notNull(number) & dart.notNull(number) - 1) === 0;
      }
      static _nextPowerOf2(number) {
        if (number == null) dart.nullFailed(I[96], 856, 32, "number");
        if (!(dart.notNull(number) > 0)) dart.assertFailed(null, I[96], 857, 12, "number > 0");
        number = (dart.notNull(number) << 1 >>> 0) - 1;
        for (;;) {
          let nextNumber = (dart.notNull(number) & dart.notNull(number) - 1) >>> 0;
          if (nextNumber === 0) return number;
          number = nextNumber;
        }
      }
      [_checkModification](expectedModificationCount) {
        if (expectedModificationCount == null) dart.nullFailed(I[96], 867, 31, "expectedModificationCount");
        if (expectedModificationCount != this[_modificationCount]) {
          dart.throw(new core.ConcurrentModificationError.new(this));
        }
      }
      [_add$](element) {
        this[_table][$_set](this[_tail], element);
        this[_tail] = (dart.notNull(this[_tail]) + 1 & dart.notNull(this[_table][$length]) - 1) >>> 0;
        if (this[_head] == this[_tail]) this[_grow$]();
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
      }
      [_remove](offset) {
        if (offset == null) dart.nullFailed(I[96], 889, 19, "offset");
        let mask = dart.notNull(this[_table][$length]) - 1;
        let startDistance = (dart.notNull(offset) - dart.notNull(this[_head]) & mask) >>> 0;
        let endDistance = (dart.notNull(this[_tail]) - dart.notNull(offset) & mask) >>> 0;
        if (startDistance < endDistance) {
          let i = offset;
          while (i != this[_head]) {
            let prevOffset = (dart.notNull(i) - 1 & mask) >>> 0;
            this[_table][$_set](i, this[_table][$_get](prevOffset));
            i = prevOffset;
          }
          this[_table][$_set](this[_head], null);
          this[_head] = (dart.notNull(this[_head]) + 1 & mask) >>> 0;
          return (dart.notNull(offset) + 1 & mask) >>> 0;
        } else {
          this[_tail] = (dart.notNull(this[_tail]) - 1 & mask) >>> 0;
          let i = offset;
          while (i != this[_tail]) {
            let nextOffset = (dart.notNull(i) + 1 & mask) >>> 0;
            this[_table][$_set](i, this[_table][$_get](nextOffset));
            i = nextOffset;
          }
          this[_table][$_set](this[_tail], null);
          return offset;
        }
      }
      [_grow$]() {
        let newTable = __t$ListOfEN$().filled(dart.notNull(this[_table][$length]) * 2, null);
        let split = dart.notNull(this[_table][$length]) - dart.notNull(this[_head]);
        newTable[$setRange](0, split, this[_table], this[_head]);
        newTable[$setRange](split, split + dart.notNull(this[_head]), this[_table], 0);
        this[_head] = 0;
        this[_tail] = this[_table][$length];
        this[_table] = newTable;
      }
      [_writeToList](target) {
        if (target == null) dart.nullFailed(I[96], 928, 29, "target");
        if (!(dart.notNull(target[$length]) >= dart.notNull(this.length))) dart.assertFailed(null, I[96], 929, 12, "target.length >= length");
        if (dart.notNull(this[_head]) <= dart.notNull(this[_tail])) {
          let length = dart.notNull(this[_tail]) - dart.notNull(this[_head]);
          target[$setRange](0, length, this[_table], this[_head]);
          return length;
        } else {
          let firstPartSize = dart.notNull(this[_table][$length]) - dart.notNull(this[_head]);
          target[$setRange](0, firstPartSize, this[_table], this[_head]);
          target[$setRange](firstPartSize, firstPartSize + dart.notNull(this[_tail]), this[_table], 0);
          return dart.notNull(this[_tail]) + firstPartSize;
        }
      }
      [_preGrow](newElementCount) {
        if (newElementCount == null) dart.nullFailed(I[96], 943, 21, "newElementCount");
        if (!(dart.notNull(newElementCount) >= dart.notNull(this.length))) dart.assertFailed(null, I[96], 944, 12, "newElementCount >= length");
        newElementCount = dart.notNull(newElementCount) + newElementCount[$rightShift](1);
        let newCapacity = collection.ListQueue._nextPowerOf2(newElementCount);
        let newTable = __t$ListOfEN$().filled(newCapacity, null);
        this[_tail] = this[_writeToList](newTable);
        this[_table] = newTable;
        this[_head] = 0;
      }
    }
    (ListQueue.new = function(initialCapacity = null) {
      this[_modificationCount] = 0;
      this[_head] = 0;
      this[_tail] = 0;
      this[_table] = __t$ListOfEN$().filled(collection.ListQueue._calculateCapacity(initialCapacity), null);
      this.$ti = this.$ti || __t$ListQueueOfE();
      dart.global.Object.getPrototypeOf(ListQueue).new.call(this);
      ;
    }).prototype = ListQueue.prototype;
    dart.addRtiResources(ListQueue, ["collection|ListQueue", "collection|Queue", "core|Iterable", "collection|_QueueIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(ListQueue, () => dart.global.Object.setPrototypeOf({
      cast: T$0.VoidToQueueOfR(),
      [$cast]: T$0.VoidToQueueOfR(),
      add: T$.ObjectNTovoid(),
      addAll: T$.ObjectNTovoid(),
      remove: T$.ObjectNTobool(),
      [_filterWhere]: __t$FnAndboolTovoid(),
      removeWhere: __t$FnTovoid(),
      retainWhere: __t$FnTovoid(),
      clear: T$.VoidTovoid(),
      addLast: T$.ObjectNTovoid(),
      addFirst: T$.ObjectNTovoid(),
      removeFirst: __t$VoidToE(),
      removeLast: __t$VoidToE(),
      [_checkModification]: T$.intTovoid(),
      [_add$]: __t$ETovoid(),
      [_remove]: T$.intToint(),
      [_grow$]: T$.VoidTovoid(),
      [_writeToList]: __t$ListOfENToint(),
      [_preGrow]: T$.intTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(ListQueue))));
    dart.setMethodsDefaultTypeArgSignature(ListQueue, () => dart.global.Object.setPrototypeOf({
      cast: [T$.dynamic()],
      [$cast]: [T$.dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(ListQueue))));
    dart.setStaticMethodSignature(ListQueue, () => ['_calculateCapacity', 'from', 'of', '_isPowerOf2', '_nextPowerOf2']);
    dart.setLibraryUri(ListQueue, I[24]);
    dart.setFieldSignature(ListQueue, () => dart.global.Object.setPrototypeOf({
      [_table]: {type: __t$ListOfEN(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_head]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_tail]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_modificationCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(ListQueue))));
    dart.setStaticFieldSignature(ListQueue, () => ['_INITIAL_CAPACITY']);
    dart.defineExtensionMethods(ListQueue, [
      'cast',
      'forEach',
      'elementAt',
      'toList',
      'toString'
    ]);
    dart.defineExtensionAccessors(ListQueue, [
      'iterator',
      'isEmpty',
      'length',
      'first',
      'last',
      'single'
    ]);
    return ListQueue;
  });
  collection.ListQueue = collection.ListQueue$();
  dart.defineLazy(collection.ListQueue, {
    /*collection.ListQueue._INITIAL_CAPACITY*/get _INITIAL_CAPACITY() {
      return 8;
    }
  }, false);
  var _end = dart.privateName(collection, "_end");
  var _position = dart.privateName(collection, "_position");
  collection._ListQueueIterator$ = dart.generic(E => {
    var __t$_ListQueueIteratorOfE = () => (__t$_ListQueueIteratorOfE = dart.constFn(E[_eval]("collection|_ListQueueIterator<0>")))();
    var __t$ListQueueOfE = () => (__t$ListQueueOfE = dart.constFn(E[_eval]("collection|ListQueue<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    class _ListQueueIterator extends core.Object {
      static ['_#new#tearOff'](E, queue) {
        if (queue == null) dart.nullFailed(I[96], 967, 35, "queue");
        return new (collection._ListQueueIterator$(E)).new(queue);
      }
      get current() {
        return E[_as](this[_current$1]);
      }
      moveNext() {
        this[_queue$0][_checkModification](this[_modificationCount]);
        if (this[_position] == this[_end]) {
          this[_current$1] = null;
          return false;
        }
        this[_current$1] = this[_queue$0][_table][$_get](this[_position]);
        this[_position] = (dart.notNull(this[_position]) + 1 & dart.notNull(this[_queue$0][_table][$length]) - 1) >>> 0;
        return true;
      }
    }
    (_ListQueueIterator.new = function(queue) {
      if (queue == null) dart.nullFailed(I[96], 967, 35, "queue");
      this[_current$1] = null;
      this[_queue$0] = queue;
      this[_end] = queue[_tail];
      this[_modificationCount] = queue[_modificationCount];
      this[_position] = queue[_head];
      this.$ti = this.$ti || __t$_ListQueueIteratorOfE();
      ;
    }).prototype = _ListQueueIterator.prototype;
    dart.addRtiResources(_ListQueueIterator, ["collection|_ListQueueIterator", "core|Iterator"]);
    dart.setMethodSignature(_ListQueueIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_ListQueueIterator))));
    dart.setGetterSignature(_ListQueueIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(_ListQueueIterator))));
    dart.setLibraryUri(_ListQueueIterator, I[24]);
    dart.setFieldSignature(_ListQueueIterator, () => dart.global.Object.setPrototypeOf({
      [_queue$0]: {type: __t$ListQueueOfE(), isConst: false, isFinal: true, libraryUri: I[24]},
      [_end]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_modificationCount]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_position]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_current$1]: {type: __t$EN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_ListQueueIterator))));
    return _ListQueueIterator;
  });
  collection._ListQueueIterator = collection._ListQueueIterator$();
  collection._UnmodifiableSetMixin$ = dart.generic(E => {
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~(core|bool(0))")))();
    class _UnmodifiableSetMixin extends core.Object {
      static _throwUnmodifiable() {
        dart.throw(new core.UnsupportedError.new("Cannot change an unmodifiable set"));
      }
    }
    _UnmodifiableSetMixin[dart.mixinOn] = Object => class _UnmodifiableSetMixin extends Object {
      add(value) {
        E[_as](value);
        collection._UnmodifiableSetMixin._throwUnmodifiable();
        return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      clear() {
        collection._UnmodifiableSetMixin._throwUnmodifiable();
        return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      addAll(elements) {
        __t$IterableOfE()[_as](elements);
        if (elements == null) dart.nullFailed(I[88], 365, 27, "elements");
        collection._UnmodifiableSetMixin._throwUnmodifiable();
        return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      removeAll(elements) {
        if (elements == null) dart.nullFailed(I[88], 368, 36, "elements");
        collection._UnmodifiableSetMixin._throwUnmodifiable();
        return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      retainAll(elements) {
        if (elements == null) dart.nullFailed(I[88], 371, 36, "elements");
        collection._UnmodifiableSetMixin._throwUnmodifiable();
        return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[88], 374, 25, "test");
        collection._UnmodifiableSetMixin._throwUnmodifiable();
        return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[88], 377, 25, "test");
        collection._UnmodifiableSetMixin._throwUnmodifiable();
        return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      remove(value) {
        collection._UnmodifiableSetMixin._throwUnmodifiable();
        return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    };
    (_UnmodifiableSetMixin[dart.mixinNew] = function() {
    }).prototype = _UnmodifiableSetMixin.prototype;
    dart.addRtiResources(_UnmodifiableSetMixin, ["collection|_UnmodifiableSetMixin", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(_UnmodifiableSetMixin, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTobool(),
      clear: T$.VoidTovoid(),
      addAll: T$.ObjectNTovoid(),
      removeAll: T$0.IterableOfObjectNTovoid(),
      retainAll: T$0.IterableOfObjectNTovoid(),
      removeWhere: __t$FnTovoid(),
      retainWhere: __t$FnTovoid(),
      remove: T$.ObjectNTobool()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_UnmodifiableSetMixin))));
    dart.setStaticMethodSignature(_UnmodifiableSetMixin, () => ['_throwUnmodifiable']);
    dart.setLibraryUri(_UnmodifiableSetMixin, I[24]);
    return _UnmodifiableSetMixin;
  });
  collection._UnmodifiableSetMixin = collection._UnmodifiableSetMixin$();
  var _map$9 = dart.privateName(collection, "_UnmodifiableSet._map");
  collection._UnmodifiableSet$ = dart.generic(E => {
    var __t$_UnmodifiableSetOfE = () => (__t$_UnmodifiableSetOfE = dart.constFn(E[_eval]("collection|_UnmodifiableSet<0>")))();
    var __t$VoidToSetOfE = () => (__t$VoidToSetOfE = dart.constFn(E[_eval]("core|Set<0>()")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$ObjectNToEN = () => (__t$ObjectNToEN = dart.constFn(E[_eval]("0?(core|Object?)")))();
    var __t$MapOfE$Null = () => (__t$MapOfE$Null = dart.constFn(E[_eval]("core|Map<0,core|Null>")))();
    var __t$_HashSetOfE = () => (__t$_HashSetOfE = dart.constFn(collection._HashSet$(E)))();
    var __t$_SetBaseOfE = () => (__t$_SetBaseOfE = dart.constFn(collection._SetBase$(E)))();
    var __t$_UnmodifiableSetMixinOfE = () => (__t$_UnmodifiableSetMixinOfE = dart.constFn(collection._UnmodifiableSetMixin$(E)))();
    const _SetBase__UnmodifiableSetMixin$36 = class _SetBase__UnmodifiableSetMixin extends __t$_SetBaseOfE() {};
    (_SetBase__UnmodifiableSetMixin$36.new = function() {
      dart.global.Object.getPrototypeOf(_SetBase__UnmodifiableSetMixin$36).new.call(this);
    }).prototype = _SetBase__UnmodifiableSetMixin$36.prototype;
    dart.applyMixin(_SetBase__UnmodifiableSetMixin$36, __t$_UnmodifiableSetMixinOfE());
    class _UnmodifiableSet extends _SetBase__UnmodifiableSetMixin$36 {
      get [_map$5]() {
        return this[_map$9];
      }
      set [_map$5](value) {
        super[_map$5] = value;
      }
      static ['_#new#tearOff'](E, _map) {
        if (_map == null) dart.nullFailed(I[88], 387, 31, "_map");
        return new (collection._UnmodifiableSet$(E)).new(_map);
      }
      [_newSet]() {
        return new (__t$_HashSetOfE()).new();
      }
      [_newSimilarSet](R) {
        return new (collection._HashSet$(R)).new();
      }
      contains(element) {
        return this[_map$5][$containsKey](element);
      }
      get iterator() {
        return this[_map$5][$keys][$iterator];
      }
      get length() {
        return this[_map$5][$length];
      }
      lookup(element) {
        for (let key of this[_map$5][$keys]) {
          if (dart.equals(key, element)) return key;
        }
        return null;
      }
    }
    (_UnmodifiableSet.new = function(_map) {
      if (_map == null) dart.nullFailed(I[88], 387, 31, "_map");
      this[_map$9] = _map;
      this.$ti = this.$ti || __t$_UnmodifiableSetOfE();
      dart.global.Object.getPrototypeOf(_UnmodifiableSet).new.call(this);
      ;
    }).prototype = _UnmodifiableSet.prototype;
    dart.addRtiResources(_UnmodifiableSet, ["collection|_UnmodifiableSet"]);
    dart.setMethodSignature(_UnmodifiableSet, () => dart.global.Object.setPrototypeOf({
      [_newSet]: __t$VoidToSetOfE(),
      [_newSimilarSet]: T$0.VoidToSetOfR(),
      contains: T$.ObjectNTobool(),
      [$contains]: T$.ObjectNTobool(),
      lookup: __t$ObjectNToEN()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_UnmodifiableSet))));
    dart.setMethodsDefaultTypeArgSignature(_UnmodifiableSet, () => dart.global.Object.setPrototypeOf({[_newSimilarSet]: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_UnmodifiableSet))));
    dart.setGetterSignature(_UnmodifiableSet, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE(),
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_UnmodifiableSet))));
    dart.setLibraryUri(_UnmodifiableSet, I[24]);
    dart.setFieldSignature(_UnmodifiableSet, () => dart.global.Object.setPrototypeOf({[_map$5]: {type: __t$MapOfE$Null(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_UnmodifiableSet))));
    dart.defineExtensionMethods(_UnmodifiableSet, ['contains']);
    dart.defineExtensionAccessors(_UnmodifiableSet, ['iterator', 'length']);
    return _UnmodifiableSet;
  });
  collection._UnmodifiableSet = collection._UnmodifiableSet$();
  collection.UnmodifiableSetView$ = dart.generic(E => {
    var __t$UnmodifiableSetViewOfE = () => (__t$UnmodifiableSetViewOfE = dart.constFn(E[_eval]("collection|UnmodifiableSetView<0>")))();
    var __t$ObjectNToEN = () => (__t$ObjectNToEN = dart.constFn(E[_eval]("0?(core|Object?)")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$VoidToSetOfE = () => (__t$VoidToSetOfE = dart.constFn(E[_eval]("core|Set<0>()")))();
    var __t$SetOfE = () => (__t$SetOfE = dart.constFn(E[_eval]("core|Set<0>")))();
    var __t$SetBaseOfE = () => (__t$SetBaseOfE = dart.constFn(collection.SetBase$(E)))();
    var __t$_UnmodifiableSetMixinOfE = () => (__t$_UnmodifiableSetMixinOfE = dart.constFn(collection._UnmodifiableSetMixin$(E)))();
    const SetBase__UnmodifiableSetMixin$36 = class SetBase__UnmodifiableSetMixin extends __t$SetBaseOfE() {};
    (SetBase__UnmodifiableSetMixin$36.new = function() {
      dart.global.Object.getPrototypeOf(SetBase__UnmodifiableSetMixin$36).new.call(this);
    }).prototype = SetBase__UnmodifiableSetMixin$36.prototype;
    dart.applyMixin(SetBase__UnmodifiableSetMixin$36, __t$_UnmodifiableSetMixinOfE());
    class UnmodifiableSetView extends SetBase__UnmodifiableSetMixin$36 {
      static ['_#new#tearOff'](E, source) {
        if (source == null) dart.nullFailed(I[88], 429, 30, "source");
        return new (collection.UnmodifiableSetView$(E)).new(source);
      }
      contains(element) {
        return this[_source].contains(element);
      }
      lookup(element) {
        return this[_source].lookup(element);
      }
      get length() {
        return this[_source][$length];
      }
      get iterator() {
        return this[_source].iterator;
      }
      toSet() {
        return this[_source].toSet();
      }
    }
    (UnmodifiableSetView.new = function(source) {
      if (source == null) dart.nullFailed(I[88], 429, 30, "source");
      this[_source] = source;
      this.$ti = this.$ti || __t$UnmodifiableSetViewOfE();
      dart.global.Object.getPrototypeOf(UnmodifiableSetView).new.call(this);
      ;
    }).prototype = UnmodifiableSetView.prototype;
    dart.addRtiResources(UnmodifiableSetView, ["collection|UnmodifiableSetView"]);
    dart.setMethodSignature(UnmodifiableSetView, () => dart.global.Object.setPrototypeOf({
      contains: T$.ObjectNTobool(),
      [$contains]: T$.ObjectNTobool(),
      lookup: __t$ObjectNToEN(),
      toSet: __t$VoidToSetOfE(),
      [$toSet]: __t$VoidToSetOfE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(UnmodifiableSetView))));
    dart.setGetterSignature(UnmodifiableSetView, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int(),
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(UnmodifiableSetView))));
    dart.setLibraryUri(UnmodifiableSetView, I[24]);
    dart.setFieldSignature(UnmodifiableSetView, () => dart.global.Object.setPrototypeOf({[_source]: {type: __t$SetOfE(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(UnmodifiableSetView))));
    dart.defineExtensionMethods(UnmodifiableSetView, ['contains', 'toSet']);
    dart.defineExtensionAccessors(UnmodifiableSetView, ['length', 'iterator']);
    return UnmodifiableSetView;
  });
  collection.UnmodifiableSetView = collection.UnmodifiableSetView$();
  var _left = dart.privateName(collection, "_SplayTreeNode._left");
  var _right = dart.privateName(collection, "_SplayTreeNode._right");
  var _left$ = dart.privateName(collection, "_left");
  var _right$ = dart.privateName(collection, "_right");
  collection._SplayTreeNode$ = dart.generic((K, Node) => {
    var __t$_SplayTreeNodeOfK$Node = () => (__t$_SplayTreeNodeOfK$Node = dart.constFn(K[_eval]("@<0>")[_bind](Node)[_eval]("collection|_SplayTreeNode<1,2>")))();
    var __t$NodeN = () => (__t$NodeN = dart.constFn(Node[_eval]("0?")))();
    class _SplayTreeNode extends core.Object {
      get [_left$]() {
        return this[_left];
      }
      set [_left$](value) {
        this[_left] = __t$NodeN()[_as](value);
      }
      get [_right$]() {
        return this[_right];
      }
      set [_right$](value) {
        this[_right] = __t$NodeN()[_as](value);
      }
      static ['_#new#tearOff'](K, Node, key) {
        return new (collection._SplayTreeNode$(K, Node)).new(key);
      }
    }
    (_SplayTreeNode.new = function(key) {
      this[_left] = null;
      this[_right] = null;
      this.key = key;
      this.$ti = this.$ti || __t$_SplayTreeNodeOfK$Node();
      ;
    }).prototype = _SplayTreeNode.prototype;
    dart.addRtiResources(_SplayTreeNode, ["collection|_SplayTreeNode"]);
    dart.setLibraryUri(_SplayTreeNode, I[24]);
    dart.setFieldSignature(_SplayTreeNode, () => dart.global.Object.setPrototypeOf({
      key: {type: K, isConst: false, isFinal: true},
      [_left$]: {type: __t$NodeN(), isConst: false, isFinal: false},
      [_right$]: {type: __t$NodeN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_SplayTreeNode))));
    return _SplayTreeNode;
  });
  collection._SplayTreeNode = collection._SplayTreeNode$();
  collection._SplayTreeSetNode$ = dart.generic(K => {
    var __t$_SplayTreeSetNodeOfK = () => (__t$_SplayTreeSetNodeOfK = dart.constFn(K[_eval]("collection|_SplayTreeSetNode<0>")))();
    var __t$_SplayTreeNodeOfK$_SplayTreeSetNodeOfK = () => (__t$_SplayTreeNodeOfK$_SplayTreeSetNodeOfK = dart.constFn(collection._SplayTreeNode$(K, K[_eval]("collection|_SplayTreeSetNode<0>"))))();
    class _SplayTreeSetNode extends __t$_SplayTreeNodeOfK$_SplayTreeSetNodeOfK() {
      static ['_#new#tearOff'](K, key) {
        return new (collection._SplayTreeSetNode$(K)).new(key);
      }
    }
    (_SplayTreeSetNode.new = function(key) {
      this.$ti = this.$ti || __t$_SplayTreeSetNodeOfK();
      dart.global.Object.getPrototypeOf(_SplayTreeSetNode).new.call(this, key);
      ;
    }).prototype = _SplayTreeSetNode.prototype;
    dart.addRtiResources(_SplayTreeSetNode, ["collection|_SplayTreeSetNode"]);
    dart.setLibraryUri(_SplayTreeSetNode, I[24]);
    return _SplayTreeSetNode;
  });
  collection._SplayTreeSetNode = collection._SplayTreeSetNode$();
  var _replaceValue = dart.privateName(collection, "_replaceValue");
  collection._SplayTreeMapNode$ = dart.generic((K, V) => {
    var __t$_SplayTreeMapNodeOfK$V = () => (__t$_SplayTreeMapNodeOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapNode<1,2>")))();
    var __t$ObjectNTo_SplayTreeMapNodeOfK$V = () => (__t$ObjectNTo_SplayTreeMapNodeOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapNode<1,2>(core|Object?)")))();
    var __t$_SplayTreeMapNodeOfK$V$ = () => (__t$_SplayTreeMapNodeOfK$V$ = dart.constFn(collection._SplayTreeMapNode$(K, V)))();
    var __t$_SplayTreeNodeOfK$_SplayTreeMapNodeOfK$V = () => (__t$_SplayTreeNodeOfK$_SplayTreeMapNodeOfK$V = dart.constFn(collection._SplayTreeNode$(K, K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapNode<1,2>"))))();
    class _SplayTreeMapNode extends __t$_SplayTreeNodeOfK$_SplayTreeMapNodeOfK$V() {
      static ['_#new#tearOff'](K, V, key, value) {
        return new (collection._SplayTreeMapNode$(K, V)).new(key, value);
      }
      [_replaceValue](value) {
        let t$36144;
        V[_as](value);
        t$36144 = new (__t$_SplayTreeMapNodeOfK$V$()).new(this.key, value);
        return (() => {
          t$36144[_left$] = this[_left$];
          t$36144[_right$] = this[_right$];
          return t$36144;
        })();
      }
    }
    (_SplayTreeMapNode.new = function(key, value) {
      this.value = value;
      this.$ti = this.$ti || __t$_SplayTreeMapNodeOfK$V();
      dart.global.Object.getPrototypeOf(_SplayTreeMapNode).new.call(this, key);
      ;
    }).prototype = _SplayTreeMapNode.prototype;
    dart.addRtiResources(_SplayTreeMapNode, ["collection|_SplayTreeMapNode"]);
    dart.setMethodSignature(_SplayTreeMapNode, () => dart.global.Object.setPrototypeOf({[_replaceValue]: __t$ObjectNTo_SplayTreeMapNodeOfK$V()}, dart.getMethods(dart.global.Object.getPrototypeOf(_SplayTreeMapNode))));
    dart.setLibraryUri(_SplayTreeMapNode, I[24]);
    dart.setFieldSignature(_SplayTreeMapNode, () => dart.global.Object.setPrototypeOf({value: {type: V, isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_SplayTreeMapNode))));
    return _SplayTreeMapNode;
  });
  collection._SplayTreeMapNode = collection._SplayTreeMapNode$();
  var _count$ = dart.privateName(collection, "_count");
  var _splayCount = dart.privateName(collection, "_splayCount");
  var _root = dart.privateName(collection, "_root");
  var _compare = dart.privateName(collection, "_compare");
  var _splay = dart.privateName(collection, "_splay");
  var _splayMin = dart.privateName(collection, "_splayMin");
  var _splayMax = dart.privateName(collection, "_splayMax");
  var _addNewRoot = dart.privateName(collection, "_addNewRoot");
  var _last$ = dart.privateName(collection, "_last");
  var _clear$ = dart.privateName(collection, "_clear");
  var _containsKey = dart.privateName(collection, "_containsKey");
  collection._SplayTree$ = dart.generic((K, Node) => {
    var __t$_SplayTreeOfK$Node = () => (__t$_SplayTreeOfK$Node = dart.constFn(K[_eval]("@<0>")[_bind](Node)[_eval]("collection|_SplayTree<1,2>")))();
    var __t$KToNodeN = () => (__t$KToNodeN = dart.constFn(K[_eval]("@<0>")[_bind](Node)[_eval]("2?(1)")))();
    var __t$NodeToNode = () => (__t$NodeToNode = dart.constFn(Node[_eval]("0(0)")))();
    var __t$NodeAndintTovoid = () => (__t$NodeAndintTovoid = dart.constFn(Node[_eval]("~(0,core|int)")))();
    var __t$NodeN = () => (__t$NodeN = dart.constFn(Node[_eval]("0?")))();
    class _SplayTree extends core.Object {
      [_splay](key) {
        let t$36145, t$36144;
        K[_as](key);
        let root = this[_root];
        if (root == null) {
          t$36144 = key;
          t$36145 = key;
          this[_compare](t$36144, t$36145);
          return -1;
        }
        let right = null;
        let newTreeRight = null;
        let left = null;
        let newTreeLeft = null;
        let current = root;
        let compare = this[_compare];
        let comp = null;
        while (true) {
          comp = compare(current.key, key);
          if (dart.notNull(comp) > 0) {
            let currentLeft = current[_left$];
            if (currentLeft == null) break;
            comp = compare(currentLeft.key, key);
            if (dart.notNull(comp) > 0) {
              current[_left$] = currentLeft[_right$];
              currentLeft[_right$] = current;
              current = currentLeft;
              currentLeft = current[_left$];
              if (currentLeft == null) break;
            }
            if (right == null) {
              newTreeRight = current;
            } else {
              right[_left$] = current;
            }
            right = current;
            current = currentLeft;
          } else if (dart.notNull(comp) < 0) {
            let currentRight = current[_right$];
            if (currentRight == null) break;
            comp = compare(currentRight.key, key);
            if (dart.notNull(comp) < 0) {
              current[_right$] = currentRight[_left$];
              currentRight[_left$] = current;
              current = currentRight;
              currentRight = current[_right$];
              if (currentRight == null) break;
            }
            if (left == null) {
              newTreeLeft = current;
            } else {
              left[_right$] = current;
            }
            left = current;
            current = currentRight;
          } else {
            break;
          }
        }
        if (left != null) {
          left[_right$] = current[_left$];
          current[_left$] = newTreeLeft;
        }
        if (right != null) {
          right[_left$] = current[_right$];
          current[_right$] = newTreeRight;
        }
        if (this[_root] != current) {
          this[_root] = current;
          this[_splayCount] = dart.notNull(this[_splayCount]) + 1;
        }
        return comp;
      }
      [_splayMin](node) {
        if (node == null) dart.nullFailed(I[97], 171, 23, "node");
        let current = node;
        let nextLeft = current[_left$];
        while (nextLeft != null) {
          let left = nextLeft;
          current[_left$] = left[_right$];
          left[_right$] = current;
          current = left;
          nextLeft = current[_left$];
        }
        return current;
      }
      [_splayMax](node) {
        if (node == null) dart.nullFailed(I[97], 189, 23, "node");
        let current = node;
        let nextRight = current[_right$];
        while (nextRight != null) {
          let right = nextRight;
          current[_right$] = right[_left$];
          right[_left$] = current;
          current = right;
          nextRight = current[_right$];
        }
        return current;
      }
      [_remove](key) {
        if (this[_root] == null) return null;
        let comp = this[_splay](key);
        if (comp !== 0) return null;
        let root = dart.nullCheck(this[_root]);
        let result = root;
        let left = root[_left$];
        this[_count$] = dart.notNull(this[_count$]) - 1;
        if (left == null) {
          this[_root] = root[_right$];
        } else {
          let right = root[_right$];
          root = this[_splayMax](left);
          root[_right$] = right;
          this[_root] = root;
        }
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        return result;
      }
      [_addNewRoot](node, comp) {
        if (node == null) dart.nullFailed(I[97], 231, 25, "node");
        if (comp == null) dart.nullFailed(I[97], 231, 35, "comp");
        this[_count$] = dart.notNull(this[_count$]) + 1;
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        let root = this[_root];
        if (root == null) {
          this[_root] = node;
          return;
        }
        if (dart.notNull(comp) < 0) {
          node[_left$] = root;
          node[_right$] = root[_right$];
          root[_right$] = null;
        } else {
          node[_right$] = root;
          node[_left$] = root[_left$];
          root[_left$] = null;
        }
        this[_root] = node;
      }
      get [_first]() {
        let root = this[_root];
        if (root == null) return null;
        this[_root] = this[_splayMin](root);
        return this[_root];
      }
      get [_last$]() {
        let root = this[_root];
        if (root == null) return null;
        this[_root] = this[_splayMax](root);
        return this[_root];
      }
      [_clear$]() {
        this[_root] = null;
        this[_count$] = 0;
        this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
      }
      [_containsKey](key) {
        let t$36144;
        return dart.test((t$36144 = key, this[_validKey$0](t$36144))) && this[_splay](K[_as](key)) === 0;
      }
    }
    (_SplayTree.new = function() {
      this[_count$] = 0;
      this[_modificationCount] = 0;
      this[_splayCount] = 0;
      this.$ti = this.$ti || __t$_SplayTreeOfK$Node();
      ;
    }).prototype = _SplayTree.prototype;
    dart.addRtiResources(_SplayTree, ["collection|_SplayTree"]);
    dart.setMethodSignature(_SplayTree, () => dart.global.Object.setPrototypeOf({
      [_splay]: T$.ObjectNToint(),
      [_splayMin]: __t$NodeToNode(),
      [_splayMax]: __t$NodeToNode(),
      [_remove]: __t$KToNodeN(),
      [_addNewRoot]: __t$NodeAndintTovoid(),
      [_clear$]: T$.VoidTovoid(),
      [_containsKey]: T$.ObjectNTobool()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SplayTree))));
    dart.setGetterSignature(_SplayTree, () => dart.global.Object.setPrototypeOf({
      [_first]: __t$NodeN(),
      [_last$]: __t$NodeN()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_SplayTree))));
    dart.setLibraryUri(_SplayTree, I[24]);
    dart.setFieldSignature(_SplayTree, () => dart.global.Object.setPrototypeOf({
      [_count$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_modificationCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_splayCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_SplayTree))));
    return _SplayTree;
  });
  collection._SplayTree = collection._SplayTree$();
  var _root$ = dart.privateName(collection, "SplayTreeMap._root");
  var _compare$ = dart.privateName(collection, "SplayTreeMap._compare");
  var _validKey = dart.privateName(collection, "SplayTreeMap._validKey");
  collection.SplayTreeMap$ = dart.generic((K, V) => {
    var __t$SplayTreeMapOfK$V = () => (__t$SplayTreeMapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|SplayTreeMap<1,2>")))();
    var __t$KAndVToV = () => (__t$KAndVToV = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("2(1,2)")))();
    var __t$MapOfK$V = () => (__t$MapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")))();
    var __t$KAndVTovoid = () => (__t$KAndVTovoid = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(1,2)")))();
    var __t$_SplayTreeMapNodeNOfK$VTobool = () => (__t$_SplayTreeMapNodeNOfK$VTobool = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|bool(collection|_SplayTreeMapNode<1,2>?)")))();
    var __t$_SplayTreeMapNodeOfK$V = () => (__t$_SplayTreeMapNodeOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapNode<1,2>")))();
    var __t$IterableOfK = () => (__t$IterableOfK = dart.constFn(K[_eval]("core|Iterable<0>")))();
    var __t$VoidToKN = () => (__t$VoidToKN = dart.constFn(K[_eval]("0?()")))();
    var __t$ObjectNToKN = () => (__t$ObjectNToKN = dart.constFn(K[_eval]("0?(core|Object?)")))();
    var __t$_SplayTreeMapNodeNOfK$V = () => (__t$_SplayTreeMapNodeNOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapNode<1,2>?")))();
    var __t$KAndKToint = () => (__t$KAndKToint = dart.constFn(K[_eval]("core|int(0,0)")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$VToV = () => (__t$VToV = dart.constFn(V[_eval]("0(0)")))();
    var __t$VoidToNV = () => (__t$VoidToNV = dart.constFn(V[_eval]("0()?")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$_SplayTreeMapNodeOfK$V$ = () => (__t$_SplayTreeMapNodeOfK$V$ = dart.constFn(collection._SplayTreeMapNode$(K, V)))();
    var __t$_SplayTreeMapEntryIteratorOfK$V = () => (__t$_SplayTreeMapEntryIteratorOfK$V = dart.constFn(collection._SplayTreeMapEntryIterator$(K, V)))();
    var __t$_SplayTreeKeyIterableOfK$_SplayTreeMapNodeOfK$V = () => (__t$_SplayTreeKeyIterableOfK$_SplayTreeMapNodeOfK$V = dart.constFn(collection._SplayTreeKeyIterable$(K, __t$_SplayTreeMapNodeOfK$V())))();
    var __t$_SplayTreeValueIterableOfK$V = () => (__t$_SplayTreeValueIterableOfK$V = dart.constFn(collection._SplayTreeValueIterable$(K, V)))();
    var __t$_SplayTreeMapEntryIterableOfK$V = () => (__t$_SplayTreeMapEntryIterableOfK$V = dart.constFn(collection._SplayTreeMapEntryIterable$(K, V)))();
    var __t$_SplayTreeOfK$_SplayTreeMapNodeOfK$V = () => (__t$_SplayTreeOfK$_SplayTreeMapNodeOfK$V = dart.constFn(collection._SplayTree$(K, K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapNode<1,2>"))))();
    var __t$MapBaseOfK$V = () => (__t$MapBaseOfK$V = dart.constFn(collection.MapBase$(K, V)))();
    const _SplayTree_MapBase$36 = class _SplayTree_MapBase extends __t$_SplayTreeOfK$_SplayTreeMapNodeOfK$V() {};
    (_SplayTree_MapBase$36.new = function() {
      __t$MapBaseOfK$V().new.call(this);
      dart.global.Object.getPrototypeOf(_SplayTree_MapBase$36).new.call(this);
    }).prototype = _SplayTree_MapBase$36.prototype;
    dart.applyMixin(_SplayTree_MapBase$36, __t$MapBaseOfK$V());
    class SplayTreeMap extends _SplayTree_MapBase$36 {
      get [_root]() {
        return this[_root$];
      }
      set [_root](value) {
        this[_root$] = value;
      }
      get [_compare]() {
        return this[_compare$];
      }
      set [_compare](value) {
        if (value == null) dart.nullFailed(I[97], 395, 17, "_compare");
        this[_compare$] = value;
      }
      get [_validKey$0]() {
        return this[_validKey];
      }
      set [_validKey$0](value) {
        if (value == null) dart.nullFailed(I[97], 396, 14, "_validKey");
        this[_validKey] = value;
      }
      static ['_#new#tearOff'](K, V, compare = null, isValidKey = null) {
        return new (collection.SplayTreeMap$(K, V)).new(compare, isValidKey);
      }
      static from(other, compare = null, isValidKey = null) {
        if (other == null) dart.nullFailed(I[97], 414, 51, "other");
        if (K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,2>")[_is](other)) {
          return collection.SplayTreeMap$(K, V).of(other, compare, isValidKey);
        }
        let result = new (collection.SplayTreeMap$(K, V)).new(compare, isValidKey);
        other[$forEach](dart.fn((k, v) => {
          result._set(K[_as](k), V[_as](v));
        }, T$.dynamicAnddynamicTovoid()));
        return result;
      }
      static ['_#from#tearOff'](K, V, other, compare = null, isValidKey = null) {
        if (other == null) dart.nullFailed(I[97], 414, 51, "other");
        return collection.SplayTreeMap$(K, V).from(other, compare, isValidKey);
      }
      static of(other, compare = null, isValidKey = null) {
        let t$36144;
        if (other == null) dart.nullFailed(I[97], 434, 37, "other");
        t$36144 = new (collection.SplayTreeMap$(K, V)).new(compare, isValidKey);
        return (() => {
          t$36144.addAll(other);
          return t$36144;
        })();
      }
      static ['_#of#tearOff'](K, V, other, compare = null, isValidKey = null) {
        if (other == null) dart.nullFailed(I[97], 434, 37, "other");
        return collection.SplayTreeMap$(K, V).of(other, compare, isValidKey);
      }
      static fromIterable(iterable, opts) {
        if (iterable == null) dart.nullFailed(I[97], 458, 46, "iterable");
        let key = opts && 'key' in opts ? opts.key : null;
        let value = opts && 'value' in opts ? opts.value : null;
        let compare = opts && 'compare' in opts ? opts.compare : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        let map = new (collection.SplayTreeMap$(K, V)).new(compare, isValidKey);
        collection.MapBase._fillMapWithMappedIterable(map, iterable, key, value);
        return map;
      }
      static ['_#fromIterable#tearOff'](K, V, iterable, opts) {
        if (iterable == null) dart.nullFailed(I[97], 458, 46, "iterable");
        let key = opts && 'key' in opts ? opts.key : null;
        let value = opts && 'value' in opts ? opts.value : null;
        let compare = opts && 'compare' in opts ? opts.compare : null;
        let isValidKey = opts && 'isValidKey' in opts ? opts.isValidKey : null;
        return collection.SplayTreeMap$(K, V).fromIterable(iterable, {key: key, value: value, compare: compare, isValidKey: isValidKey});
      }
      static fromIterables(keys, values, compare = null, isValidKey = null) {
        if (keys == null) dart.nullFailed(I[97], 484, 50, "keys");
        if (values == null) dart.nullFailed(I[97], 484, 68, "values");
        let map = new (collection.SplayTreeMap$(K, V)).new(compare, isValidKey);
        collection.MapBase._fillMapWithIterables(map, keys, values);
        return map;
      }
      static ['_#fromIterables#tearOff'](K, V, keys, values, compare = null, isValidKey = null) {
        if (keys == null) dart.nullFailed(I[97], 484, 50, "keys");
        if (values == null) dart.nullFailed(I[97], 484, 68, "values");
        return collection.SplayTreeMap$(K, V).fromIterables(keys, values, compare, isValidKey);
      }
      _get(key) {
        let t$36144;
        if (!dart.test((t$36144 = key, this[_validKey$0](t$36144)))) return null;
        if (this[_root] != null) {
          let comp = this[_splay](K[_as](key));
          if (comp === 0) {
            return dart.nullCheck(this[_root]).value;
          }
        }
        return null;
      }
      remove(key) {
        let t$36144;
        if (!dart.test((t$36144 = key, this[_validKey$0](t$36144)))) return null;
        let mapRoot = this[_remove](K[_as](key));
        if (mapRoot != null) return mapRoot.value;
        return null;
      }
      _set(key, value$) {
        let value = value$;
        K[_as](key);
        V[_as](value);
        let comp = this[_splay](key);
        if (comp === 0) {
          this[_root] = dart.nullCheck(this[_root])[_replaceValue](value);
          this[_splayCount] = dart.notNull(this[_splayCount]) + 1;
          return value$;
        }
        this[_addNewRoot](new (__t$_SplayTreeMapNodeOfK$V$()).new(key, value), comp);
        return value$;
      }
      putIfAbsent(key, ifAbsent) {
        K[_as](key);
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[97], 523, 26, "ifAbsent");
        let comp = this[_splay](key);
        if (comp === 0) {
          return dart.nullCheck(this[_root]).value;
        }
        let modificationCount = this[_modificationCount];
        let splayCount = this[_splayCount];
        let value = ifAbsent();
        if (modificationCount != this[_modificationCount]) {
          dart.throw(new core.ConcurrentModificationError.new(this));
        }
        if (splayCount != this[_splayCount]) {
          comp = this[_splay](key);
          if (!(comp !== 0)) dart.assertFailed(null, I[97], 537, 14, "comp != 0");
        }
        this[_addNewRoot](new (__t$_SplayTreeMapNodeOfK$V$()).new(key, value), comp);
        return value;
      }
      update(key, update, opts) {
        K[_as](key);
        __t$VToV()[_as](update);
        if (update == null) dart.nullFailed(I[97], 543, 21, "update");
        let ifAbsent = opts && 'ifAbsent' in opts ? opts.ifAbsent : null;
        __t$VoidToNV()[_as](ifAbsent);
        let comp = this[_splay](key);
        if (comp === 0) {
          let modificationCount = this[_modificationCount];
          let splayCount = this[_splayCount];
          let newValue = update(dart.nullCheck(this[_root]).value);
          if (modificationCount != this[_modificationCount]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
          if (splayCount != this[_splayCount]) {
            this[_splay](key);
          }
          this[_root] = dart.nullCheck(this[_root])[_replaceValue](newValue);
          this[_splayCount] = dart.notNull(this[_splayCount]) + 1;
          return newValue;
        }
        if (ifAbsent != null) {
          let modificationCount = this[_modificationCount];
          let splayCount = this[_splayCount];
          let newValue = ifAbsent();
          if (modificationCount != this[_modificationCount]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
          if (splayCount != this[_splayCount]) {
            comp = this[_splay](key);
          }
          this[_addNewRoot](new (__t$_SplayTreeMapNodeOfK$V$()).new(key, newValue), comp);
          return newValue;
        }
        dart.throw(new core.ArgumentError.value(key, "key", "Key not in map."));
      }
      updateAll(update) {
        __t$KAndVToV()[_as](update);
        if (update == null) dart.nullFailed(I[97], 575, 20, "update");
        let root = this[_root];
        if (root == null) return;
        let iterator = new (__t$_SplayTreeMapEntryIteratorOfK$V()).new(this);
        while (dart.test(iterator.moveNext())) {
          let node = iterator.current;
          let newValue = update(node.key, node.value);
          iterator[_replaceValue](newValue);
        }
      }
      addAll(other) {
        __t$MapOfK$V()[_as](other);
        if (other == null) dart.nullFailed(I[97], 586, 25, "other");
        other[$forEach](dart.fn((key, value) => {
          this._set(key, value);
        }, __t$KAndVTovoid()));
      }
      get isEmpty() {
        return this[_root] == null;
      }
      get isNotEmpty() {
        return !dart.test(this.isEmpty);
      }
      forEach(f) {
        if (f == null) dart.nullFailed(I[97], 598, 21, "f");
        let nodes = new (__t$_SplayTreeMapEntryIteratorOfK$V()).new(this);
        while (dart.test(nodes.moveNext())) {
          let node = nodes.current;
          f(node.key, node.value);
        }
      }
      get length() {
        return this[_count$];
      }
      clear() {
        this[_clear$]();
      }
      containsKey(key) {
        return this[_containsKey](key);
      }
      containsValue(value) {
        let initialSplayCount = this[_splayCount];
        const visit = node => {
          while (node != null) {
            if (dart.equals(node.value, value)) return true;
            if (initialSplayCount != this[_splayCount]) {
              dart.throw(new core.ConcurrentModificationError.new(this));
            }
            if (node[_right$] != null && dart.test(visit(node[_right$]))) {
              return true;
            }
            node = node[_left$];
          }
          return false;
        };
        dart.fn(visit, __t$_SplayTreeMapNodeNOfK$VTobool());
        return visit(this[_root]);
      }
      get keys() {
        return new (__t$_SplayTreeKeyIterableOfK$_SplayTreeMapNodeOfK$V()).new(this);
      }
      get values() {
        return new (__t$_SplayTreeValueIterableOfK$V()).new(this);
      }
      get entries() {
        return new (__t$_SplayTreeMapEntryIterableOfK$V()).new(this);
      }
      firstKey() {
        if (this[_root] == null) return null;
        return dart.nullCheck(this[_first]).key;
      }
      lastKey() {
        if (this[_root] == null) return null;
        return dart.nullCheck(this[_last$]).key;
      }
      lastKeyBefore(key) {
        K[_as](key);
        if (key == null) dart.throw(new core.ArgumentError.new(key));
        if (this[_root] == null) return null;
        let comp = this[_splay](key);
        if (dart.notNull(comp) < 0) return dart.nullCheck(this[_root]).key;
        let node = dart.nullCheck(this[_root])[_left$];
        if (node == null) return null;
        let nodeRight = node[_right$];
        while (nodeRight != null) {
          node = nodeRight;
          nodeRight = node[_right$];
        }
        return dart.nullCheck(node).key;
      }
      firstKeyAfter(key) {
        K[_as](key);
        if (key == null) dart.throw(new core.ArgumentError.new(key));
        if (this[_root] == null) return null;
        let comp = this[_splay](key);
        if (dart.notNull(comp) > 0) return dart.nullCheck(this[_root]).key;
        let node = dart.nullCheck(this[_root])[_right$];
        if (node == null) return null;
        let nodeLeft = node[_left$];
        while (nodeLeft != null) {
          node = nodeLeft;
          nodeLeft = node[_left$];
        }
        return dart.nullCheck(node).key;
      }
    }
    (SplayTreeMap.new = function(compare = null, isValidKey = null) {
      let t$36144, t$36144$;
      this[_root$] = null;
      this[_compare$] = (t$36144 = compare, t$36144 == null ? collection._defaultCompare(K) : t$36144);
      this[_validKey] = (t$36144$ = isValidKey, t$36144$ == null ? dart.fn(a => K[_is](a), T$.dynamicTobool()) : t$36144$);
      this.$ti = this.$ti || __t$SplayTreeMapOfK$V();
      dart.global.Object.getPrototypeOf(SplayTreeMap).new.call(this);
      ;
    }).prototype = SplayTreeMap.prototype;
    dart.addRtiResources(SplayTreeMap, ["collection|SplayTreeMap"]);
    dart.setMethodSignature(SplayTreeMap, () => dart.global.Object.setPrototypeOf({
      _get: __t$ObjectNToVN(),
      [$_get]: __t$ObjectNToVN(),
      remove: __t$ObjectNToVN(),
      [$remove]: __t$ObjectNToVN(),
      _set: T$.ObjectNAndObjectNTovoid(),
      [$_set]: T$.ObjectNAndObjectNTovoid(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid(),
      firstKey: __t$VoidToKN(),
      lastKey: __t$VoidToKN(),
      lastKeyBefore: __t$ObjectNToKN(),
      firstKeyAfter: __t$ObjectNToKN()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(SplayTreeMap))));
    dart.setStaticMethodSignature(SplayTreeMap, () => ['from', 'of', 'fromIterable', 'fromIterables']);
    dart.setGetterSignature(SplayTreeMap, () => dart.global.Object.setPrototypeOf({
      keys: __t$IterableOfK(),
      [$keys]: __t$IterableOfK()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(SplayTreeMap))));
    dart.setLibraryUri(SplayTreeMap, I[24]);
    dart.setFieldSignature(SplayTreeMap, () => dart.global.Object.setPrototypeOf({
      [_root]: {type: __t$_SplayTreeMapNodeNOfK$V(), isConst: false, isFinal: false, libraryUri: I[24]},
      [_compare]: {type: __t$KAndKToint(), isConst: false, isFinal: false},
      [_validKey$0]: {type: T$.dynamicTobool(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(SplayTreeMap))));
    dart.defineExtensionMethods(SplayTreeMap, [
      '_get',
      'remove',
      '_set',
      'putIfAbsent',
      'update',
      'updateAll',
      'addAll',
      'forEach',
      'clear',
      'containsKey',
      'containsValue'
    ]);
    dart.defineExtensionAccessors(SplayTreeMap, [
      'isEmpty',
      'isNotEmpty',
      'length',
      'keys',
      'values',
      'entries'
    ]);
    return SplayTreeMap;
  });
  collection.SplayTreeMap = collection.SplayTreeMap$();
  var _path = dart.privateName(collection, "_path");
  var _tree$ = dart.privateName(collection, "_tree");
  var _getValue$ = dart.privateName(collection, "_getValue");
  var _rebuildPath = dart.privateName(collection, "_rebuildPath");
  var _findLeftMostDescendent = dart.privateName(collection, "_findLeftMostDescendent");
  collection._SplayTreeIterator$ = dart.generic((K, Node, T) => {
    var __t$_SplayTreeIteratorOfK$Node$T = () => (__t$_SplayTreeIteratorOfK$Node$T = dart.constFn(K[_eval]("@<0>")[_bind](Node)[_bind](T)[_eval]("collection|_SplayTreeIterator<1,2,3>")))();
    var __t$KTovoid = () => (__t$KTovoid = dart.constFn(K[_eval]("~(0)")))();
    var __t$_SplayTreeOfK$Node = () => (__t$_SplayTreeOfK$Node = dart.constFn(K[_eval]("@<0>")[_bind](Node)[_eval]("collection|_SplayTree<1,2>")))();
    var __t$NodeNTovoid = () => (__t$NodeNTovoid = dart.constFn(Node[_eval]("~(0?)")))();
    var __t$ListOfNode = () => (__t$ListOfNode = dart.constFn(Node[_eval]("core|List<0>")))();
    var __t$JSArrayOfNode = () => (__t$JSArrayOfNode = dart.constFn(_interceptors.JSArray$(Node)))();
    class _SplayTreeIterator extends core.Object {
      get current() {
        if (dart.test(this[_path][$isEmpty])) return T[_as](null);
        let node = this[_path][$last];
        return this[_getValue$](node);
      }
      [_rebuildPath](key) {
        this[_path][$clear]();
        this[_tree$][_splay](key);
        this[_path][$add](dart.nullCheck(this[_tree$][_root]));
        this[_splayCount] = this[_tree$][_splayCount];
      }
      [_findLeftMostDescendent](node) {
        while (node != null) {
          this[_path][$add](node);
          node = node[_left$];
        }
      }
      moveNext() {
        if (this[_modificationCount] != this[_tree$][_modificationCount]) {
          if (this[_modificationCount] == null) {
            this[_modificationCount] = this[_tree$][_modificationCount];
            let node = this[_tree$][_root];
            while (node != null) {
              this[_path][$add](node);
              node = node[_left$];
            }
            return this[_path][$isNotEmpty];
          }
          dart.throw(new core.ConcurrentModificationError.new(this[_tree$]));
        }
        if (dart.test(this[_path][$isEmpty])) return false;
        if (this[_splayCount] != this[_tree$][_splayCount]) {
          this[_rebuildPath](this[_path][$last].key);
        }
        let node = this[_path][$last];
        let next = node[_right$];
        if (next != null) {
          while (next != null) {
            this[_path][$add](next);
            next = next[_left$];
          }
          return true;
        }
        this[_path][$removeLast]();
        while (dart.test(this[_path][$isNotEmpty]) && this[_path][$last][_right$] == node) {
          node = this[_path][$removeLast]();
        }
        return this[_path][$isNotEmpty];
      }
    }
    (_SplayTreeIterator.new = function(tree) {
      if (tree == null) dart.nullFailed(I[97], 720, 42, "tree");
      this[_path] = __t$JSArrayOfNode().of([]);
      this[_modificationCount] = null;
      this[_tree$] = tree;
      this[_splayCount] = tree[_splayCount];
      this.$ti = this.$ti || __t$_SplayTreeIteratorOfK$Node$T();
      ;
    }).prototype = _SplayTreeIterator.prototype;
    dart.addRtiResources(_SplayTreeIterator, ["collection|_SplayTreeIterator", "core|Iterator"]);
    dart.setMethodSignature(_SplayTreeIterator, () => dart.global.Object.setPrototypeOf({
      [_rebuildPath]: __t$KTovoid(),
      [_findLeftMostDescendent]: __t$NodeNTovoid(),
      moveNext: T$.VoidTobool()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SplayTreeIterator))));
    dart.setGetterSignature(_SplayTreeIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(_SplayTreeIterator))));
    dart.setLibraryUri(_SplayTreeIterator, I[24]);
    dart.setFieldSignature(_SplayTreeIterator, () => dart.global.Object.setPrototypeOf({
      [_tree$]: {type: __t$_SplayTreeOfK$Node(), isConst: false, isFinal: true, libraryUri: I[24]},
      [_path]: {type: __t$ListOfNode(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_modificationCount]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_splayCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_SplayTreeIterator))));
    return _SplayTreeIterator;
  });
  collection._SplayTreeIterator = collection._SplayTreeIterator$();
  var _copyNode = dart.privateName(collection, "_copyNode");
  collection._SplayTreeKeyIterable$ = dart.generic((K, Node) => {
    var __t$_SplayTreeKeyIterableOfK$Node = () => (__t$_SplayTreeKeyIterableOfK$Node = dart.constFn(K[_eval]("@<0>")[_bind](Node)[_eval]("collection|_SplayTreeKeyIterable<1,2>")))();
    var __t$KAndKToint = () => (__t$KAndKToint = dart.constFn(K[_eval]("core|int(0,0)")))();
    var __t$IteratorOfK = () => (__t$IteratorOfK = dart.constFn(K[_eval]("core|Iterator<0>")))();
    var __t$_SplayTreeOfK$Node = () => (__t$_SplayTreeOfK$Node = dart.constFn(K[_eval]("@<0>")[_bind](Node)[_eval]("collection|_SplayTree<1,2>")))();
    var __t$_SplayTreeKeyIteratorOfK$Node = () => (__t$_SplayTreeKeyIteratorOfK$Node = dart.constFn(collection._SplayTreeKeyIterator$(K, Node)))();
    var __t$SplayTreeSetOfK = () => (__t$SplayTreeSetOfK = dart.constFn(collection.SplayTreeSet$(K)))();
    var __t$EfficientLengthIterableOfK = () => (__t$EfficientLengthIterableOfK = dart.constFn(_internal.EfficientLengthIterable$(K)))();
    class _SplayTreeKeyIterable extends __t$EfficientLengthIterableOfK() {
      static ['_#new#tearOff'](K, Node, _tree) {
        if (_tree == null) dart.nullFailed(I[97], 790, 30, "_tree");
        return new (collection._SplayTreeKeyIterable$(K, Node)).new(_tree);
      }
      get length() {
        return this[_tree$][_count$];
      }
      get isEmpty() {
        return this[_tree$][_count$] === 0;
      }
      get iterator() {
        return new (__t$_SplayTreeKeyIteratorOfK$Node()).new(this[_tree$]);
      }
      contains(o) {
        return this[_tree$][_containsKey](o);
      }
      toSet() {
        let set = new (__t$SplayTreeSetOfK()).new(__t$KAndKToint()[_as](this[_tree$][_compare]), this[_tree$][_validKey$0]);
        set[_count$] = this[_tree$][_count$];
        set[_root] = set[_copyNode](Node, this[_tree$][_root]);
        return set;
      }
    }
    (_SplayTreeKeyIterable.new = function(_tree) {
      if (_tree == null) dart.nullFailed(I[97], 790, 30, "_tree");
      this[_tree$] = _tree;
      this.$ti = this.$ti || __t$_SplayTreeKeyIterableOfK$Node();
      dart.global.Object.getPrototypeOf(_SplayTreeKeyIterable).new.call(this);
      ;
    }).prototype = _SplayTreeKeyIterable.prototype;
    dart.addRtiResources(_SplayTreeKeyIterable, ["collection|_SplayTreeKeyIterable", "_internal|HideEfficientLengthIterable", "core|Iterable"]);
    dart.setGetterSignature(_SplayTreeKeyIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfK(),
      [$iterator]: __t$IteratorOfK()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_SplayTreeKeyIterable))));
    dart.setLibraryUri(_SplayTreeKeyIterable, I[24]);
    dart.setFieldSignature(_SplayTreeKeyIterable, () => dart.global.Object.setPrototypeOf({[_tree$]: {type: __t$_SplayTreeOfK$Node(), isConst: false, isFinal: false, libraryUri: I[24]}}, dart.getFields(dart.global.Object.getPrototypeOf(_SplayTreeKeyIterable))));
    dart.defineExtensionMethods(_SplayTreeKeyIterable, ['contains', 'toSet']);
    dart.defineExtensionAccessors(_SplayTreeKeyIterable, ['length', 'isEmpty', 'iterator']);
    return _SplayTreeKeyIterable;
  });
  collection._SplayTreeKeyIterable = collection._SplayTreeKeyIterable$();
  collection._SplayTreeValueIterable$ = dart.generic((K, V) => {
    var __t$_SplayTreeValueIterableOfK$V = () => (__t$_SplayTreeValueIterableOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeValueIterable<1,2>")))();
    var __t$SplayTreeMapOfK$V = () => (__t$SplayTreeMapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|SplayTreeMap<1,2>")))();
    var __t$IteratorOfV = () => (__t$IteratorOfV = dart.constFn(V[_eval]("core|Iterator<0>")))();
    var __t$_SplayTreeValueIteratorOfK$V = () => (__t$_SplayTreeValueIteratorOfK$V = dart.constFn(collection._SplayTreeValueIterator$(K, V)))();
    var __t$EfficientLengthIterableOfV = () => (__t$EfficientLengthIterableOfV = dart.constFn(_internal.EfficientLengthIterable$(V)))();
    class _SplayTreeValueIterable extends __t$EfficientLengthIterableOfV() {
      static ['_#new#tearOff'](K, V, _map) {
        if (_map == null) dart.nullFailed(I[97], 808, 32, "_map");
        return new (collection._SplayTreeValueIterable$(K, V)).new(_map);
      }
      get length() {
        return this[_map$5][_count$];
      }
      get isEmpty() {
        return this[_map$5][_count$] === 0;
      }
      get iterator() {
        return new (__t$_SplayTreeValueIteratorOfK$V()).new(this[_map$5]);
      }
    }
    (_SplayTreeValueIterable.new = function(_map) {
      if (_map == null) dart.nullFailed(I[97], 808, 32, "_map");
      this[_map$5] = _map;
      this.$ti = this.$ti || __t$_SplayTreeValueIterableOfK$V();
      dart.global.Object.getPrototypeOf(_SplayTreeValueIterable).new.call(this);
      ;
    }).prototype = _SplayTreeValueIterable.prototype;
    dart.addRtiResources(_SplayTreeValueIterable, ["collection|_SplayTreeValueIterable", "_internal|HideEfficientLengthIterable", "core|Iterable"]);
    dart.setGetterSignature(_SplayTreeValueIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfV(),
      [$iterator]: __t$IteratorOfV()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_SplayTreeValueIterable))));
    dart.setLibraryUri(_SplayTreeValueIterable, I[24]);
    dart.setFieldSignature(_SplayTreeValueIterable, () => dart.global.Object.setPrototypeOf({[_map$5]: {type: __t$SplayTreeMapOfK$V(), isConst: false, isFinal: false, libraryUri: I[24]}}, dart.getFields(dart.global.Object.getPrototypeOf(_SplayTreeValueIterable))));
    dart.defineExtensionAccessors(_SplayTreeValueIterable, ['length', 'isEmpty', 'iterator']);
    return _SplayTreeValueIterable;
  });
  collection._SplayTreeValueIterable = collection._SplayTreeValueIterable$();
  collection._SplayTreeMapEntryIterable$ = dart.generic((K, V) => {
    var __t$_SplayTreeMapEntryIterableOfK$V = () => (__t$_SplayTreeMapEntryIterableOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapEntryIterable<1,2>")))();
    var __t$IteratorOfMapEntryOfK$V = () => (__t$IteratorOfMapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Iterator<core|MapEntry<1,2>>")))();
    var __t$SplayTreeMapOfK$V = () => (__t$SplayTreeMapOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|SplayTreeMap<1,2>")))();
    var __t$_SplayTreeMapEntryIteratorOfK$V = () => (__t$_SplayTreeMapEntryIteratorOfK$V = dart.constFn(collection._SplayTreeMapEntryIterator$(K, V)))();
    var __t$EfficientLengthIterableOfMapEntryOfK$V = () => (__t$EfficientLengthIterableOfMapEntryOfK$V = dart.constFn(_internal.EfficientLengthIterable$(K[_eval]("@<0>")[_bind](V)[_eval]("core|MapEntry<1,2>"))))();
    class _SplayTreeMapEntryIterable extends __t$EfficientLengthIterableOfMapEntryOfK$V() {
      static ['_#new#tearOff'](K, V, _map) {
        if (_map == null) dart.nullFailed(I[97], 818, 35, "_map");
        return new (collection._SplayTreeMapEntryIterable$(K, V)).new(_map);
      }
      get length() {
        return this[_map$5][_count$];
      }
      get isEmpty() {
        return this[_map$5][_count$] === 0;
      }
      get iterator() {
        return new (__t$_SplayTreeMapEntryIteratorOfK$V()).new(this[_map$5]);
      }
    }
    (_SplayTreeMapEntryIterable.new = function(_map) {
      if (_map == null) dart.nullFailed(I[97], 818, 35, "_map");
      this[_map$5] = _map;
      this.$ti = this.$ti || __t$_SplayTreeMapEntryIterableOfK$V();
      dart.global.Object.getPrototypeOf(_SplayTreeMapEntryIterable).new.call(this);
      ;
    }).prototype = _SplayTreeMapEntryIterable.prototype;
    dart.addRtiResources(_SplayTreeMapEntryIterable, ["collection|_SplayTreeMapEntryIterable", "_internal|HideEfficientLengthIterable", "core|Iterable"]);
    dart.setGetterSignature(_SplayTreeMapEntryIterable, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfMapEntryOfK$V(),
      [$iterator]: __t$IteratorOfMapEntryOfK$V()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_SplayTreeMapEntryIterable))));
    dart.setLibraryUri(_SplayTreeMapEntryIterable, I[24]);
    dart.setFieldSignature(_SplayTreeMapEntryIterable, () => dart.global.Object.setPrototypeOf({[_map$5]: {type: __t$SplayTreeMapOfK$V(), isConst: false, isFinal: false, libraryUri: I[24]}}, dart.getFields(dart.global.Object.getPrototypeOf(_SplayTreeMapEntryIterable))));
    dart.defineExtensionAccessors(_SplayTreeMapEntryIterable, ['length', 'isEmpty', 'iterator']);
    return _SplayTreeMapEntryIterable;
  });
  collection._SplayTreeMapEntryIterable = collection._SplayTreeMapEntryIterable$();
  collection._SplayTreeKeyIterator$ = dart.generic((K, Node) => {
    var __t$_SplayTreeKeyIteratorOfK$Node = () => (__t$_SplayTreeKeyIteratorOfK$Node = dart.constFn(K[_eval]("@<0>")[_bind](Node)[_eval]("collection|_SplayTreeKeyIterator<1,2>")))();
    var __t$NodeToK = () => (__t$NodeToK = dart.constFn(K[_eval]("@<0>")[_bind](Node)[_eval]("1(2)")))();
    var __t$_SplayTreeIteratorOfK$Node$K = () => (__t$_SplayTreeIteratorOfK$Node$K = dart.constFn(collection._SplayTreeIterator$(K, Node, K)))();
    class _SplayTreeKeyIterator extends __t$_SplayTreeIteratorOfK$Node$K() {
      static ['_#new#tearOff'](K, Node, tree) {
        if (tree == null) dart.nullFailed(I[97], 827, 45, "tree");
        return new (collection._SplayTreeKeyIterator$(K, Node)).new(tree);
      }
      [_getValue$](node) {
        if (node == null) dart.nullFailed(I[97], 828, 20, "node");
        return node.key;
      }
    }
    (_SplayTreeKeyIterator.new = function(tree) {
      if (tree == null) dart.nullFailed(I[97], 827, 45, "tree");
      this.$ti = this.$ti || __t$_SplayTreeKeyIteratorOfK$Node();
      dart.global.Object.getPrototypeOf(_SplayTreeKeyIterator).new.call(this, tree);
      ;
    }).prototype = _SplayTreeKeyIterator.prototype;
    dart.addRtiResources(_SplayTreeKeyIterator, ["collection|_SplayTreeKeyIterator"]);
    dart.setMethodSignature(_SplayTreeKeyIterator, () => dart.global.Object.setPrototypeOf({[_getValue$]: __t$NodeToK()}, dart.getMethods(dart.global.Object.getPrototypeOf(_SplayTreeKeyIterator))));
    dart.setLibraryUri(_SplayTreeKeyIterator, I[24]);
    return _SplayTreeKeyIterator;
  });
  collection._SplayTreeKeyIterator = collection._SplayTreeKeyIterator$();
  collection._SplayTreeValueIterator$ = dart.generic((K, V) => {
    var __t$_SplayTreeValueIteratorOfK$V = () => (__t$_SplayTreeValueIteratorOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeValueIterator<1,2>")))();
    var __t$_SplayTreeMapNodeOfK$VToV = () => (__t$_SplayTreeMapNodeOfK$VToV = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("2(collection|_SplayTreeMapNode<1,2>)")))();
    var __t$_SplayTreeIteratorOfK$_SplayTreeMapNodeOfK$V$V = () => (__t$_SplayTreeIteratorOfK$_SplayTreeMapNodeOfK$V$V = dart.constFn(collection._SplayTreeIterator$(K, K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapNode<1,2>"), V)))();
    class _SplayTreeValueIterator extends __t$_SplayTreeIteratorOfK$_SplayTreeMapNodeOfK$V$V() {
      static ['_#new#tearOff'](K, V, map) {
        if (map == null) dart.nullFailed(I[97], 833, 46, "map");
        return new (collection._SplayTreeValueIterator$(K, V)).new(map);
      }
      [_getValue$](node) {
        if (node == null) dart.nullFailed(I[97], 834, 39, "node");
        return node.value;
      }
    }
    (_SplayTreeValueIterator.new = function(map) {
      if (map == null) dart.nullFailed(I[97], 833, 46, "map");
      this.$ti = this.$ti || __t$_SplayTreeValueIteratorOfK$V();
      dart.global.Object.getPrototypeOf(_SplayTreeValueIterator).new.call(this, map);
      ;
    }).prototype = _SplayTreeValueIterator.prototype;
    dart.addRtiResources(_SplayTreeValueIterator, ["collection|_SplayTreeValueIterator"]);
    dart.setMethodSignature(_SplayTreeValueIterator, () => dart.global.Object.setPrototypeOf({[_getValue$]: __t$_SplayTreeMapNodeOfK$VToV()}, dart.getMethods(dart.global.Object.getPrototypeOf(_SplayTreeValueIterator))));
    dart.setLibraryUri(_SplayTreeValueIterator, I[24]);
    return _SplayTreeValueIterator;
  });
  collection._SplayTreeValueIterator = collection._SplayTreeValueIterator$();
  collection._SplayTreeMapEntryIterator$ = dart.generic((K, V) => {
    var __t$_SplayTreeMapEntryIteratorOfK$V = () => (__t$_SplayTreeMapEntryIteratorOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapEntryIterator<1,2>")))();
    var __t$_SplayTreeMapNodeOfK$VToMapEntryOfK$V = () => (__t$_SplayTreeMapNodeOfK$VToMapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|MapEntry<1,2>(collection|_SplayTreeMapNode<1,2>)")))();
    var __t$MapEntryOfK$V = () => (__t$MapEntryOfK$V = dart.constFn(core.MapEntry$(K, V)))();
    var __t$_SplayTreeIteratorOfK$_SplayTreeMapNodeOfK$V$MapEntryOfK$V = () => (__t$_SplayTreeIteratorOfK$_SplayTreeMapNodeOfK$V$MapEntryOfK$V = dart.constFn(collection._SplayTreeIterator$(K, K[_eval]("@<0>")[_bind](V)[_eval]("collection|_SplayTreeMapNode<1,2>"), K[_eval]("@<0>")[_bind](V)[_eval]("core|MapEntry<1,2>"))))();
    class _SplayTreeMapEntryIterator extends __t$_SplayTreeIteratorOfK$_SplayTreeMapNodeOfK$V$MapEntryOfK$V() {
      static ['_#new#tearOff'](K, V, map) {
        if (map == null) dart.nullFailed(I[97], 839, 49, "map");
        return new (collection._SplayTreeMapEntryIterator$(K, V)).new(map);
      }
      [_getValue$](node) {
        if (node == null) dart.nullFailed(I[97], 840, 52, "node");
        return new (__t$MapEntryOfK$V()).__(node.key, node.value);
      }
      [_replaceValue](value) {
        let t$36144;
        V[_as](value);
        if (!dart.test(this[_path][$isNotEmpty])) dart.assertFailed(null, I[97], 845, 12, "_path.isNotEmpty");
        if (this[_modificationCount] != this[_tree$][_modificationCount]) {
          dart.throw(new core.ConcurrentModificationError.new(this[_tree$]));
        }
        if (this[_splayCount] != this[_tree$][_splayCount]) {
          this[_rebuildPath](this[_path][$last].key);
        }
        let last = this[_path][$removeLast]();
        let newLast = last[_replaceValue](value);
        if (dart.test(this[_path][$isEmpty])) {
          this[_tree$][_root] = newLast;
        } else {
          let parent = this[_path][$last];
          if (last == parent[_left$]) {
            parent[_left$] = newLast;
          } else {
            if (!(last == parent[_right$])) dart.assertFailed(null, I[97], 861, 16, "identical(last, parent._right)");
            parent[_right$] = newLast;
          }
        }
        this[_path][$add](newLast);
        this[_splayCount] = (t$36144 = this[_tree$], t$36144[_splayCount] = dart.notNull(t$36144[_splayCount]) + 1);
      }
    }
    (_SplayTreeMapEntryIterator.new = function(map) {
      if (map == null) dart.nullFailed(I[97], 839, 49, "map");
      this.$ti = this.$ti || __t$_SplayTreeMapEntryIteratorOfK$V();
      dart.global.Object.getPrototypeOf(_SplayTreeMapEntryIterator).new.call(this, map);
      ;
    }).prototype = _SplayTreeMapEntryIterator.prototype;
    dart.addRtiResources(_SplayTreeMapEntryIterator, ["collection|_SplayTreeMapEntryIterator"]);
    dart.setMethodSignature(_SplayTreeMapEntryIterator, () => dart.global.Object.setPrototypeOf({
      [_getValue$]: __t$_SplayTreeMapNodeOfK$VToMapEntryOfK$V(),
      [_replaceValue]: T$.ObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SplayTreeMapEntryIterator))));
    dart.setLibraryUri(_SplayTreeMapEntryIterator, I[24]);
    return _SplayTreeMapEntryIterator;
  });
  collection._SplayTreeMapEntryIterator = collection._SplayTreeMapEntryIterator$();
  var _root$0 = dart.privateName(collection, "SplayTreeSet._root");
  var _compare$0 = dart.privateName(collection, "SplayTreeSet._compare");
  var _validKey$1 = dart.privateName(collection, "SplayTreeSet._validKey");
  var _clone$ = dart.privateName(collection, "_clone");
  collection.SplayTreeSet$ = dart.generic(E => {
    var __t$SplayTreeSetOfE = () => (__t$SplayTreeSetOfE = dart.constFn(E[_eval]("collection|SplayTreeSet<0>")))();
    var __t$_SplayTreeSetNodeNOfE = () => (__t$_SplayTreeSetNodeNOfE = dart.constFn(E[_eval]("collection|_SplayTreeSetNode<0>?")))();
    var __t$_SplayTreeSetNodeOfE = () => (__t$_SplayTreeSetNodeOfE = dart.constFn(E[_eval]("collection|_SplayTreeSetNode<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$SetOfE = () => (__t$SetOfE = dart.constFn(E[_eval]("core|Set<0>")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$ETobool = () => (__t$ETobool = dart.constFn(E[_eval]("core|bool(0)")))();
    var __t$ObjectNToEN = () => (__t$ObjectNToEN = dart.constFn(E[_eval]("0?(core|Object?)")))();
    var __t$VoidToSplayTreeSetOfE = () => (__t$VoidToSplayTreeSetOfE = dart.constFn(E[_eval]("collection|SplayTreeSet<0>()")))();
    var __t$NodeNTo_SplayTreeSetNodeNOfE = () => (__t$NodeNTo_SplayTreeSetNodeNOfE = dart.constFn(E[_eval]("collection|_SplayTreeSetNode<0>?(0^?)<collection|_SplayTreeNode<0,0^>>")))();
    var __t$_SplayTreeNodeOfE$dynamic = () => (__t$_SplayTreeNodeOfE$dynamic = dart.constFn(E[_eval]("collection|_SplayTreeNode<0,@>")))();
    var __t$EAndEToint = () => (__t$EAndEToint = dart.constFn(E[_eval]("core|int(0,0)")))();
    var __t$_SplayTreeKeyIteratorOfE$_SplayTreeSetNodeOfE = () => (__t$_SplayTreeKeyIteratorOfE$_SplayTreeSetNodeOfE = dart.constFn(collection._SplayTreeKeyIterator$(E, __t$_SplayTreeSetNodeOfE())))();
    var __t$_SplayTreeSetNodeOfE$ = () => (__t$_SplayTreeSetNodeOfE$ = dart.constFn(collection._SplayTreeSetNode$(E)))();
    var __t$SplayTreeSetOfE$ = () => (__t$SplayTreeSetOfE$ = dart.constFn(collection.SplayTreeSet$(E)))();
    var __t$_SplayTreeOfE$_SplayTreeSetNodeOfE = () => (__t$_SplayTreeOfE$_SplayTreeSetNodeOfE = dart.constFn(collection._SplayTree$(E, E[_eval]("collection|_SplayTreeSetNode<0>"))))();
    var __t$IterableOfE$ = () => (__t$IterableOfE$ = dart.constFn(core.Iterable$(E)))();
    var __t$SetBaseOfE = () => (__t$SetBaseOfE = dart.constFn(collection.SetBase$(E)))();
    const _SplayTree_Iterable$36 = class _SplayTree_Iterable extends __t$_SplayTreeOfE$_SplayTreeSetNodeOfE() {};
    (_SplayTree_Iterable$36.new = function() {
      __t$IterableOfE$().new.call(this);
      dart.global.Object.getPrototypeOf(_SplayTree_Iterable$36).new.call(this);
    }).prototype = _SplayTree_Iterable$36.prototype;
    dart.applyMixin(_SplayTree_Iterable$36, __t$IterableOfE$());
    const _SplayTree_SetBase$36 = class _SplayTree_SetBase extends _SplayTree_Iterable$36 {};
    (_SplayTree_SetBase$36.new = function() {
      __t$SetBaseOfE().new.call(this);
      dart.global.Object.getPrototypeOf(_SplayTree_SetBase$36).new.call(this);
    }).prototype = _SplayTree_SetBase$36.prototype;
    dart.applyMixin(_SplayTree_SetBase$36, __t$SetBaseOfE());
    class SplayTreeSet extends _SplayTree_SetBase$36 {
      get [_root]() {
        return this[_root$0];
      }
      set [_root](value) {
        this[_root$0] = __t$_SplayTreeSetNodeNOfE()[_as](value);
      }
      get [_compare]() {
        return this[_compare$0];
      }
      set [_compare](value) {
        if (value == null) dart.nullFailed(I[97], 956, 17, "_compare");
        this[_compare$0] = value;
      }
      get [_validKey$0]() {
        return this[_validKey$1];
      }
      set [_validKey$0](value) {
        if (value == null) dart.nullFailed(I[97], 957, 14, "_validKey");
        this[_validKey$1] = value;
      }
      static ['_#new#tearOff'](E, compare = null, isValidKey = null) {
        return new (collection.SplayTreeSet$(E)).new(compare, isValidKey);
      }
      static from(elements, compare = null, isValidKey = null) {
        if (elements == null) dart.nullFailed(I[97], 1006, 38, "elements");
        if (E[_eval]("core|Iterable<0>")[_is](elements)) {
          return collection.SplayTreeSet$(E).of(elements, compare, isValidKey);
        }
        let result = new (collection.SplayTreeSet$(E)).new(compare, isValidKey);
        for (let element of elements) {
          result.add(E[_as](element));
        }
        return result;
      }
      static ['_#from#tearOff'](E, elements, compare = null, isValidKey = null) {
        if (elements == null) dart.nullFailed(I[97], 1006, 38, "elements");
        return collection.SplayTreeSet$(E).from(elements, compare, isValidKey);
      }
      static of(elements, compare = null, isValidKey = null) {
        let t$36144;
        if (elements == null) dart.nullFailed(I[97], 1030, 39, "elements");
        t$36144 = new (collection.SplayTreeSet$(E)).new(compare, isValidKey);
        return (() => {
          t$36144.addAll(elements);
          return t$36144;
        })();
      }
      static ['_#of#tearOff'](E, elements, compare = null, isValidKey = null) {
        if (elements == null) dart.nullFailed(I[97], 1030, 39, "elements");
        return collection.SplayTreeSet$(E).of(elements, compare, isValidKey);
      }
      [_newSet](T) {
        return new (collection.SplayTreeSet$(T)).new(dart.fn((a, b) => {
          let t$36145, t$36144;
          t$36144 = E[_as](a);
          t$36145 = E[_as](b);
          return this[_compare](t$36144, t$36145);
        }, T[_eval]("core|int(0,0)")), this[_validKey$0]);
      }
      cast(R) {
        return core.Set.castFrom(E, R, this, {newSet: dart.bind(this, _newSet)});
      }
      get iterator() {
        return new (__t$_SplayTreeKeyIteratorOfE$_SplayTreeSetNodeOfE()).new(this);
      }
      get length() {
        return this[_count$];
      }
      get isEmpty() {
        return this[_root] == null;
      }
      get isNotEmpty() {
        return this[_root] != null;
      }
      get first() {
        if (this[_count$] === 0) dart.throw(_internal.IterableElementError.noElement());
        return dart.nullCheck(this[_first]).key;
      }
      get last() {
        if (this[_count$] === 0) dart.throw(_internal.IterableElementError.noElement());
        return dart.nullCheck(this[_last$]).key;
      }
      get single() {
        if (this[_count$] === 0) dart.throw(_internal.IterableElementError.noElement());
        if (dart.notNull(this[_count$]) > 1) dart.throw(_internal.IterableElementError.tooMany());
        return dart.nullCheck(this[_root]).key;
      }
      contains(element) {
        let t$36144;
        return dart.test((t$36144 = element, this[_validKey$0](t$36144))) && this[_splay](E[_as](element)) === 0;
      }
      add(element) {
        E[_as](element);
        return this[_add$](element);
      }
      [_add$](element) {
        let compare = this[_splay](element);
        if (compare === 0) return false;
        this[_addNewRoot](new (__t$_SplayTreeSetNodeOfE$()).new(element), compare);
        return true;
      }
      remove(object) {
        let t$36144;
        if (!dart.test((t$36144 = object, this[_validKey$0](t$36144)))) return false;
        return this[_remove](E[_as](object)) != null;
      }
      addAll(elements) {
        __t$IterableOfE()[_as](elements);
        if (elements == null) dart.nullFailed(I[97], 1084, 27, "elements");
        for (let element of elements) {
          this[_add$](element);
        }
      }
      removeAll(elements) {
        let t$36144;
        if (elements == null) dart.nullFailed(I[97], 1090, 36, "elements");
        for (let element of elements) {
          if (dart.test((t$36144 = element, this[_validKey$0](t$36144)))) this[_remove](E[_as](element));
        }
      }
      retainAll(elements) {
        let t$36144;
        if (elements == null) dart.nullFailed(I[97], 1096, 36, "elements");
        let retainSet = new (__t$SplayTreeSetOfE$()).new(this[_compare], this[_validKey$0]);
        let modificationCount = this[_modificationCount];
        for (let object of elements) {
          if (modificationCount != this[_modificationCount]) {
            dart.throw(new core.ConcurrentModificationError.new(this));
          }
          if (dart.test((t$36144 = object, this[_validKey$0](t$36144))) && this[_splay](E[_as](object)) === 0) {
            retainSet.add(dart.nullCheck(this[_root]).key);
          }
        }
        if (retainSet[_count$] != this[_count$]) {
          this[_root] = retainSet[_root];
          this[_count$] = retainSet[_count$];
          this[_modificationCount] = dart.notNull(this[_modificationCount]) + 1;
        }
      }
      lookup(object) {
        let t$36144;
        if (!dart.test((t$36144 = object, this[_validKey$0](t$36144)))) return null;
        let comp = this[_splay](E[_as](object));
        if (comp !== 0) return null;
        return dart.nullCheck(this[_root]).key;
      }
      intersection(other) {
        if (other == null) dart.nullFailed(I[97], 1125, 36, "other");
        let result = new (__t$SplayTreeSetOfE$()).new(this[_compare], this[_validKey$0]);
        for (let element of this) {
          if (dart.test(other.contains(element))) result.add(element);
        }
        return result;
      }
      difference(other) {
        if (other == null) dart.nullFailed(I[97], 1133, 34, "other");
        let result = new (__t$SplayTreeSetOfE$()).new(this[_compare], this[_validKey$0]);
        for (let element of this) {
          if (!dart.test(other.contains(element))) result.add(element);
        }
        return result;
      }
      union(other) {
        let t$36144;
        __t$SetOfE()[_as](other);
        if (other == null) dart.nullFailed(I[97], 1141, 23, "other");
        t$36144 = this[_clone$]();
        return (() => {
          t$36144.addAll(other);
          return t$36144;
        })();
      }
      [_clone$]() {
        let set = new (__t$SplayTreeSetOfE$()).new(this[_compare], this[_validKey$0]);
        set[_count$] = this[_count$];
        set[_root] = this[_copyNode](__t$_SplayTreeSetNodeOfE(), this[_root]);
        return set;
      }
      [_copyNode](Node, node) {
        dart.checkTypeBound(Node, Node[_eval]("@<0>")[_bind](E)[_eval]("collection|_SplayTreeNode<2,1>"), 'Node');
        if (node == null) return null;
        function copyChildren(node, dest) {
          if (node == null) dart.nullFailed(I[97], 1161, 28, "node");
          if (dest == null) dart.nullFailed(I[97], 1161, 55, "dest");
          let left = null;
          let right = null;
          do {
            left = node[_left$];
            right = node[_right$];
            if (left != null) {
              let newLeft = new (__t$_SplayTreeSetNodeOfE$()).new(left.key);
              dest[_left$] = newLeft;
              copyChildren(left, newLeft);
            }
            if (right != null) {
              let newRight = new (__t$_SplayTreeSetNodeOfE$()).new(right.key);
              dest[_right$] = newRight;
              node = right;
              dest = newRight;
            }
          } while (right != null);
        }
        dart.fn(copyChildren, Node[_eval]("@<0>")[_bind](E)[_eval]("~(1,collection|_SplayTreeSetNode<2>)"));
        let result = new (__t$_SplayTreeSetNodeOfE$()).new(node.key);
        copyChildren(node, result);
        return result;
      }
      clear() {
        this[_clear$]();
      }
      toSet() {
        return this[_clone$]();
      }
      toString() {
        return core.Iterable.iterableToFullString(this, "{", "}");
      }
    }
    (SplayTreeSet.new = function(compare = null, isValidKey = null) {
      let t$36144, t$36144$;
      this[_root$0] = null;
      this[_compare$0] = (t$36144 = compare, t$36144 == null ? collection._defaultCompare(E) : t$36144);
      this[_validKey$1] = (t$36144$ = isValidKey, t$36144$ == null ? dart.fn(v => E[_is](v), T$.dynamicTobool()) : t$36144$);
      this.$ti = this.$ti || __t$SplayTreeSetOfE();
      dart.global.Object.getPrototypeOf(SplayTreeSet).new.call(this);
      ;
    }).prototype = SplayTreeSet.prototype;
    dart.addRtiResources(SplayTreeSet, ["collection|SplayTreeSet"]);
    dart.setMethodSignature(SplayTreeSet, () => dart.global.Object.setPrototypeOf({
      [_newSet]: T$0.VoidToSetOfR(),
      add: T$.ObjectNTobool(),
      [_add$]: __t$ETobool(),
      remove: T$.ObjectNTobool(),
      lookup: __t$ObjectNToEN(),
      [_clone$]: __t$VoidToSplayTreeSetOfE(),
      [_copyNode]: __t$NodeNTo_SplayTreeSetNodeNOfE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(SplayTreeSet))));
    dart.setMethodsDefaultTypeArgSignature(SplayTreeSet, () => dart.global.Object.setPrototypeOf({
      [_newSet]: [T$.dynamic()],
      [_copyNode]: [__t$_SplayTreeNodeOfE$dynamic()]
    }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(SplayTreeSet))));
    dart.setStaticMethodSignature(SplayTreeSet, () => ['from', 'of']);
    dart.setGetterSignature(SplayTreeSet, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(SplayTreeSet))));
    dart.setLibraryUri(SplayTreeSet, I[24]);
    dart.setFieldSignature(SplayTreeSet, () => dart.global.Object.setPrototypeOf({
      [_root]: {type: __t$_SplayTreeSetNodeNOfE(), isConst: false, isFinal: false, libraryUri: I[24]},
      [_compare]: {type: __t$EAndEToint(), isConst: false, isFinal: false},
      [_validKey$0]: {type: T$.dynamicTobool(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(SplayTreeSet))));
    dart.defineExtensionMethods(SplayTreeSet, ['cast', 'contains', 'toSet', 'toString']);
    dart.defineExtensionAccessors(SplayTreeSet, [
      'iterator',
      'length',
      'isEmpty',
      'isNotEmpty',
      'first',
      'last',
      'single'
    ]);
    return SplayTreeSet;
  });
  collection.SplayTreeSet = collection.SplayTreeSet$();
  collection._defaultEquals = function _defaultEquals(a, b) {
    return dart.equals(a, b);
  };
  collection._defaultHashCode = function _defaultHashCode(a) {
    return dart.hashCode(a);
  };
  collection['NullableIterableExtensions|get#nonNulls'] = function NullableIterableExtensions$124get$35nonNulls(T, $this) {
    if ($this == null) dart.nullFailed(I[98], 27, 19, "#this");
    return new (_internal.NonNullsIterable$(T)).new($this);
  };
  collection['IterableExtensions|get#indexed'] = function IterableExtensions$124get$35indexed(T, $this) {
    if ($this == null) dart.nullFailed(I[98], 38, 26, "#this");
    return _internal.IndexedIterable$(T).new($this, 0);
  };
  collection['IterableExtensions|get#firstOrNull'] = function IterableExtensions$124get$35firstOrNull(T, $this) {
    if ($this == null) dart.nullFailed(I[98], 41, 10, "#this");
    let iterator = $this[$iterator];
    if (dart.test(iterator.moveNext())) return iterator.current;
    return null;
  };
  collection['IterableExtensions|get#lastOrNull'] = function IterableExtensions$124get$35lastOrNull(T, $this) {
    if ($this == null) dart.nullFailed(I[98], 58, 10, "#this");
    if (T$.EfficientLengthIterable()[_is]($this)) {
      if (dart.test($this[$isEmpty])) return null;
      return $this[$last];
    }
    let iterator = $this[$iterator];
    if (!dart.test(iterator.moveNext())) return null;
    let result = null;
    do {
      result = iterator.current;
    } while (dart.test(iterator.moveNext()));
    return result;
  };
  collection['IterableExtensions|get#singleOrNull'] = function IterableExtensions$124get$35singleOrNull(T, $this) {
    if ($this == null) dart.nullFailed(I[98], 77, 10, "#this");
    let iterator = $this[$iterator];
    if (dart.test(iterator.moveNext())) {
      let result = iterator.current;
      if (!dart.test(iterator.moveNext())) return result;
    }
    return null;
  };
  collection['IterableExtensions|elementAtOrNull'] = function IterableExtensions$124elementAtOrNull(T, $this, index) {
    if ($this == null) dart.nullFailed(I[98], 92, 6, "#this");
    if (index == null) dart.nullFailed(I[98], 92, 26, "index");
    core.RangeError.checkNotNegative(index, "index");
    if (T$.EfficientLengthIterable()[_is]($this)) {
      if (dart.notNull(index) >= dart.notNull($this[$length])) return null;
      return $this[$elementAt](index);
    }
    let iterator = $this[$iterator];
    do {
      if (!dart.test(iterator.moveNext())) return null;
    } while ((index = dart.notNull(index) - 1) >= 0);
    return iterator.current;
  };
  collection['IterableExtensions|get#elementAtOrNull'] = function IterableExtensions$124get$35elementAtOrNull(T, $this) {
    if ($this == null) dart.nullFailed(I[98], 92, 6, "#this");
    return dart.fn(index => {
      if (index == null) dart.nullFailed(I[98], 92, 26, "index");
      return collection['IterableExtensions|elementAtOrNull'](T, $this, index);
    }, T[_eval]("0?(core|int)"));
  };
  collection._dynamicCompare = function _dynamicCompare(a, b) {
    return core.Comparable.compare(T$.Comparable()[_as](a), T$.Comparable()[_as](b));
  };
  collection._defaultCompare = function _defaultCompare(K) {
    let compare = C[125] || CT.C125;
    if (K[_eval]("core|int(0,0)")[_is](compare)) {
      return compare;
    }
    return C[126] || CT.C126;
  };
  var _processed = dart.privateName(convert, "_processed");
  var _data$ = dart.privateName(convert, "_data");
  var _original$ = dart.privateName(convert, "_original");
  var _isUpgraded = dart.privateName(convert, "_isUpgraded");
  var _upgradedMap = dart.privateName(convert, "_upgradedMap");
  var _process = dart.privateName(convert, "_process");
  var _computeKeys = dart.privateName(convert, "_computeKeys");
  var _upgrade = dart.privateName(convert, "_upgrade");
  convert._JsonMap = class _JsonMap extends G.MapBaseOfString$dynamic() {
    static ['_#new#tearOff'](_original) {
      return new convert._JsonMap.new(_original);
    }
    _get(key) {
      if (dart.test(this[_isUpgraded])) {
        return this[_upgradedMap][$_get](key);
      } else if (!(typeof key == 'string')) {
        return null;
      } else {
        let result = convert._JsonMap._getProperty(this[_processed], key);
        if (dart.test(convert._JsonMap._isUnprocessed(result))) result = this[_process](key);
        return result;
      }
    }
    get length() {
      return dart.test(this[_isUpgraded]) ? this[_upgradedMap][$length] : this[_computeKeys]()[$length];
    }
    get isEmpty() {
      return this.length === 0;
    }
    get isNotEmpty() {
      return dart.notNull(this.length) > 0;
    }
    get keys() {
      if (dart.test(this[_isUpgraded])) return this[_upgradedMap][$keys];
      return new convert._JsonMapKeyIterable.new(this);
    }
    get values() {
      if (dart.test(this[_isUpgraded])) return this[_upgradedMap][$values];
      return G.MappedIterableOfString$dynamic().new(this[_computeKeys](), dart.fn(each => {
        if (each == null) dart.nullFailed(I[99], 156, 44, "each");
        return this._get(each);
      }, T$.StringTodynamic()));
    }
    _set(key, value$) {
      let value = value$;
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[99], 159, 16, "key");
      if (dart.test(this[_isUpgraded])) {
        this[_upgradedMap][$_set](key, value);
      } else if (dart.test(this.containsKey(key))) {
        let processed = this[_processed];
        convert._JsonMap._setProperty(processed, key, value);
        let original = this[_original$];
        if (!core.identical(original, processed)) {
          convert._JsonMap._setProperty(original, key, null);
        }
      } else {
        this[_upgrade]()[$_set](key, value);
      }
      return value$;
    }
    addAll(other) {
      T$2.MapOfString$dynamic()[_as](other);
      if (other == null) dart.nullFailed(I[99], 174, 36, "other");
      other[$forEach](dart.fn((key, value) => {
        if (key == null) dart.nullFailed(I[99], 175, 20, "key");
        this._set(key, value);
      }, T$2.StringAnddynamicTovoid()));
    }
    containsValue(value) {
      if (dart.test(this[_isUpgraded])) return this[_upgradedMap][$containsValue](value);
      let keys = this[_computeKeys]();
      for (let i = 0; i < dart.notNull(keys[$length]); i = i + 1) {
        let key = keys[$_get](i);
        if (dart.equals(this._get(key), value)) return true;
      }
      return false;
    }
    containsKey(key) {
      if (dart.test(this[_isUpgraded])) return this[_upgradedMap][$containsKey](key);
      if (!(typeof key == 'string')) return false;
      return convert._JsonMap._hasProperty(this[_original$], key);
    }
    putIfAbsent(key, ifAbsent) {
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[99], 196, 15, "key");
      T$.VoidTodynamic()[_as](ifAbsent);
      if (ifAbsent == null) dart.nullFailed(I[99], 196, 20, "ifAbsent");
      if (dart.test(this.containsKey(key))) return this._get(key);
      let value = ifAbsent();
      this._set(key, value);
      return value;
    }
    remove(key) {
      if (!dart.test(this[_isUpgraded]) && !dart.test(this.containsKey(key))) return null;
      return this[_upgrade]()[$remove](key);
    }
    clear() {
      if (dart.test(this[_isUpgraded])) {
        this[_upgradedMap][$clear]();
      } else {
        if (this[_data$] != null) {
          dart.dsend(this[_data$], 'clear', []);
        }
        this[_original$] = this[_processed] = null;
        this[_data$] = new _js_helper.LinkedMap.new();
      }
    }
    forEach(f) {
      if (f == null) dart.nullFailed(I[99], 223, 21, "f");
      if (dart.test(this[_isUpgraded])) return this[_upgradedMap][$forEach](f);
      let keys = this[_computeKeys]();
      for (let i = 0; i < dart.notNull(keys[$length]); i = i + 1) {
        let key = keys[$_get](i);
        let value = convert._JsonMap._getProperty(this[_processed], key);
        if (dart.test(convert._JsonMap._isUnprocessed(value))) {
          value = convert._convertJsonToDartLazy(convert._JsonMap._getProperty(this[_original$], key));
          convert._JsonMap._setProperty(this[_processed], key, value);
        }
        f(key, value);
        if (!core.identical(keys, this[_data$])) {
          dart.throw(new core.ConcurrentModificationError.new(this));
        }
      }
    }
    get [_isUpgraded]() {
      return this[_processed] == null;
    }
    get [_upgradedMap]() {
      if (!dart.test(this[_isUpgraded])) dart.assertFailed(null, I[99], 255, 12, "_isUpgraded");
      return this[_data$];
    }
    [_computeKeys]() {
      if (!!dart.test(this[_isUpgraded])) dart.assertFailed(null, I[99], 263, 12, "!_isUpgraded");
      let keys = T$.ListN()[_as](this[_data$]);
      if (keys == null) {
        keys = this[_data$] = convert._JsonMap._getPropertyNames(this[_original$]);
      }
      return keys;
    }
    [_upgrade]() {
      if (dart.test(this[_isUpgraded])) return this[_upgradedMap];
      let result = new (G.IdentityMapOfString$dynamic()).new();
      let keys = this[_computeKeys]();
      for (let i = 0; i < dart.notNull(keys[$length]); i = i + 1) {
        let key = keys[$_get](i);
        result[$_set](key, this._get(key));
      }
      if (dart.test(keys[$isEmpty])) {
        keys[$add]("");
      } else {
        keys[$clear]();
      }
      this[_original$] = this[_processed] = null;
      this[_data$] = result;
      if (!dart.test(this[_isUpgraded])) dart.assertFailed(null, I[99], 296, 12, "_isUpgraded");
      return result;
    }
    [_process](key) {
      if (key == null) dart.nullFailed(I[99], 300, 19, "key");
      if (!dart.test(convert._JsonMap._hasProperty(this[_original$], key))) return null;
      let result = convert._convertJsonToDartLazy(convert._JsonMap._getProperty(this[_original$], key));
      return convert._JsonMap._setProperty(this[_processed], key, result);
    }
    static _hasProperty(object, key) {
      if (key == null) dart.nullFailed(I[99], 310, 43, "key");
      return Object.prototype.hasOwnProperty.call(object, key);
    }
    static _getProperty(object, key) {
      if (key == null) dart.nullFailed(I[99], 312, 38, "key");
      return object[key];
    }
    static _setProperty(object, key, value) {
      if (key == null) dart.nullFailed(I[99], 313, 38, "key");
      return object[key] = value;
    }
    static _getPropertyNames(object) {
      return Object.keys(object);
    }
    static _isUnprocessed(object) {
      return typeof object == "undefined";
    }
    static _newJavaScriptObject() {
      return Object.create(null);
    }
  };
  (convert._JsonMap.new = function(_original) {
    this[_processed] = convert._JsonMap._newJavaScriptObject();
    this[_data$] = null;
    this[_original$] = _original;
    this.$ti = this.$ti || T$2._JsonMap();
    dart.global.Object.getPrototypeOf(convert._JsonMap).new.call(this);
    ;
  }).prototype = convert._JsonMap.prototype;
  dart.addRtiResources(convert._JsonMap, ["convert|_JsonMap"]);
  dart.setMethodSignature(convert._JsonMap, () => dart.global.Object.setPrototypeOf({
    _get: T$1.ObjectNTodynamic(),
    [$_get]: T$1.ObjectNTodynamic(),
    _set: T$.ObjectNAndObjectNTovoid(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    remove: T$1.ObjectNTodynamic(),
    [$remove]: T$1.ObjectNTodynamic(),
    clear: T$.VoidTovoid(),
    [$clear]: T$.VoidTovoid(),
    [_computeKeys]: T$2.VoidToListOfString(),
    [_upgrade]: T$2.VoidToMapOfString$dynamic(),
    [_process]: T$.StringTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._JsonMap))));
  dart.setStaticMethodSignature(convert._JsonMap, () => ['_hasProperty', '_getProperty', '_setProperty', '_getPropertyNames', '_isUnprocessed', '_newJavaScriptObject']);
  dart.setGetterSignature(convert._JsonMap, () => dart.global.Object.setPrototypeOf({
    keys: T$0.IterableOfString(),
    [$keys]: T$0.IterableOfString(),
    [_isUpgraded]: T$.bool(),
    [_upgradedMap]: T$2.MapOfString$dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(convert._JsonMap))));
  dart.setLibraryUri(convert._JsonMap, I[41]);
  dart.setFieldSignature(convert._JsonMap, () => dart.global.Object.setPrototypeOf({
    [_original$]: {type: T$.dynamic(), isConst: false, isFinal: false},
    [_processed]: {type: T$.dynamic(), isConst: false, isFinal: false},
    [_data$]: {type: T$.dynamic(), isConst: false, isFinal: false}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonMap))));
  dart.defineExtensionMethods(convert._JsonMap, [
    '_get',
    '_set',
    'addAll',
    'containsValue',
    'containsKey',
    'putIfAbsent',
    'remove',
    'clear',
    'forEach'
  ]);
  dart.defineExtensionAccessors(convert._JsonMap, [
    'length',
    'isEmpty',
    'isNotEmpty',
    'keys',
    'values'
  ]);
  var _parent$ = dart.privateName(convert, "_parent");
  convert._JsonMapKeyIterable = class _JsonMapKeyIterable extends G.ListIterableOfString() {
    static ['_#new#tearOff'](_parent) {
      if (_parent == null) dart.nullFailed(I[99], 325, 28, "_parent");
      return new convert._JsonMapKeyIterable.new(_parent);
    }
    get length() {
      return this[_parent$].length;
    }
    elementAt(index) {
      if (index == null) dart.nullFailed(I[99], 329, 24, "index");
      return dart.test(this[_parent$][_isUpgraded]) ? this[_parent$].keys[$elementAt](index) : this[_parent$][_computeKeys]()[$_get](index);
    }
    get iterator() {
      return dart.test(this[_parent$][_isUpgraded]) ? this[_parent$].keys[$iterator] : this[_parent$][_computeKeys]()[$iterator];
    }
    contains(key) {
      return this[_parent$].containsKey(key);
    }
  };
  (convert._JsonMapKeyIterable.new = function(_parent) {
    if (_parent == null) dart.nullFailed(I[99], 325, 28, "_parent");
    this[_parent$] = _parent;
    this.$ti = this.$ti || T$2._JsonMapKeyIterable();
    dart.global.Object.getPrototypeOf(convert._JsonMapKeyIterable).new.call(this);
    ;
  }).prototype = convert._JsonMapKeyIterable.prototype;
  dart.addRtiResources(convert._JsonMapKeyIterable, ["convert|_JsonMapKeyIterable"]);
  dart.setLibraryUri(convert._JsonMapKeyIterable, I[41]);
  dart.setFieldSignature(convert._JsonMapKeyIterable, () => dart.global.Object.setPrototypeOf({[_parent$]: {type: T$2._JsonMap(), isConst: false, isFinal: true, libraryUri: I[41]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonMapKeyIterable))));
  dart.defineExtensionMethods(convert._JsonMapKeyIterable, ['elementAt', 'contains']);
  dart.defineExtensionAccessors(convert._JsonMapKeyIterable, ['length', 'iterator']);
  var _reviver$ = dart.privateName(convert, "_reviver");
  var _sink$0 = dart.privateName(convert, "_sink");
  var _stringSink$ = dart.privateName(convert, "_stringSink");
  convert.StringConversionSink = class StringConversionSink extends core.Object {
    static ['_#withCallback#tearOff'](callback) {
      if (callback == null) dart.nullFailed(I[100], 19, 50, "callback");
      return new convert._StringCallbackSink.new(callback);
    }
    static ['_#from#tearOff'](sink) {
      if (sink == null) dart.nullFailed(I[100], 21, 50, "sink");
      return new convert._StringAdapterSink.new(sink);
    }
    static ['_#fromStringSink#tearOff'](sink) {
      if (sink == null) dart.nullFailed(I[100], 28, 58, "sink");
      return new (G._StringSinkConversionSinkOfStringSink()).new(sink);
    }
    add(str) {
      T$.String()[_as](str);
      if (str == null) dart.nullFailed(I[100], 38, 19, "str");
      this.addSlice(str, 0, str.length, false);
    }
    asUtf8Sink(allowMalformed) {
      if (allowMalformed == null) dart.nullFailed(I[100], 46, 38, "allowMalformed");
      return new convert._Utf8ConversionSink.new(this, allowMalformed);
    }
    asStringSink() {
      return new convert._StringConversionSinkAsStringSinkAdapter.new(this);
    }
  };
  (convert.StringConversionSink.new = function() {
    ;
  }).prototype = convert.StringConversionSink.prototype;
  dart.addRtiResources(convert.StringConversionSink, ["convert|StringConversionSink", "convert|ChunkedConversionSink", "core|Sink"]);
  dart.setMethodSignature(convert.StringConversionSink, () => dart.global.Object.setPrototypeOf({
    add: T$.ObjectNTovoid(),
    asUtf8Sink: T$2.boolToByteConversionSink(),
    asStringSink: T$2.VoidToClosableStringSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.StringConversionSink))));
  dart.setStaticMethodSignature(convert.StringConversionSink, () => ['withCallback', 'from', 'fromStringSink']);
  dart.setLibraryUri(convert.StringConversionSink, I[41]);
  convert._StringSinkConversionSink$ = dart.generic(TStringSink => {
    var __t$_StringSinkConversionSinkOfTStringSink = () => (__t$_StringSinkConversionSinkOfTStringSink = dart.constFn(TStringSink[_eval]("convert|_StringSinkConversionSink<0>")))();
    class _StringSinkConversionSink extends convert.StringConversionSink {
      static ['_#new#tearOff'](TStringSink, _stringSink) {
        if (_stringSink == null) dart.nullFailed(I[100], 169, 34, "_stringSink");
        return new (convert._StringSinkConversionSink$(TStringSink)).new(_stringSink);
      }
      close() {
      }
      addSlice(str, start, end, isLast) {
        if (str == null) dart.nullFailed(I[100], 173, 24, "str");
        if (start == null) dart.nullFailed(I[100], 173, 33, "start");
        if (end == null) dart.nullFailed(I[100], 173, 44, "end");
        if (isLast == null) dart.nullFailed(I[100], 173, 54, "isLast");
        if (start !== 0 || end !== str.length) {
          for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
            this[_stringSink$].writeCharCode(str[$codeUnitAt](i));
          }
        } else {
          this[_stringSink$].write(str);
        }
        if (dart.test(isLast)) this.close();
      }
      add(str) {
        T$.String()[_as](str);
        if (str == null) dart.nullFailed(I[100], 184, 19, "str");
        this[_stringSink$].write(str);
      }
      asUtf8Sink(allowMalformed) {
        if (allowMalformed == null) dart.nullFailed(I[100], 188, 38, "allowMalformed");
        return new convert._Utf8StringSinkAdapter.new(this, this[_stringSink$], allowMalformed);
      }
      asStringSink() {
        return new convert._ClosableStringSink.new(this[_stringSink$], dart.bind(this, 'close'));
      }
    }
    (_StringSinkConversionSink.new = function(_stringSink) {
      if (_stringSink == null) dart.nullFailed(I[100], 169, 34, "_stringSink");
      this[_stringSink$] = _stringSink;
      this.$ti = this.$ti || __t$_StringSinkConversionSinkOfTStringSink();
      dart.global.Object.getPrototypeOf(_StringSinkConversionSink).new.call(this);
      ;
    }).prototype = _StringSinkConversionSink.prototype;
    dart.addRtiResources(_StringSinkConversionSink, ["convert|_StringSinkConversionSink"]);
    dart.setMethodSignature(_StringSinkConversionSink, () => dart.global.Object.setPrototypeOf({
      close: T$.VoidTovoid(),
      addSlice: T$2.StringAndintAndint__Tovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_StringSinkConversionSink))));
    dart.setLibraryUri(_StringSinkConversionSink, I[41]);
    dart.setFieldSignature(_StringSinkConversionSink, () => dart.global.Object.setPrototypeOf({[_stringSink$]: {type: TStringSink, isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_StringSinkConversionSink))));
    return _StringSinkConversionSink;
  });
  convert._StringSinkConversionSink = convert._StringSinkConversionSink$();
  convert._JsonDecoderSink = class _JsonDecoderSink extends G._StringSinkConversionSinkOfStringBuffer() {
    static ['_#new#tearOff'](_reviver, _sink) {
      if (_sink == null) dart.nullFailed(I[99], 366, 40, "_sink");
      return new convert._JsonDecoderSink.new(_reviver, _sink);
    }
    close() {
      super.close();
      let accumulated = dart.toString(this[_stringSink$]);
      this[_stringSink$].clear();
      let decoded = convert._parseJson(accumulated, this[_reviver$]);
      this[_sink$0].add(decoded);
      this[_sink$0].close();
    }
  };
  (convert._JsonDecoderSink.new = function(_reviver, _sink) {
    if (_sink == null) dart.nullFailed(I[99], 366, 40, "_sink");
    this[_reviver$] = _reviver;
    this[_sink$0] = _sink;
    this.$ti = this.$ti || T$2._JsonDecoderSink();
    dart.global.Object.getPrototypeOf(convert._JsonDecoderSink).new.call(this, new core.StringBuffer.new(""));
    ;
  }).prototype = convert._JsonDecoderSink.prototype;
  dart.addRtiResources(convert._JsonDecoderSink, ["convert|_JsonDecoderSink"]);
  dart.setLibraryUri(convert._JsonDecoderSink, I[41]);
  dart.setFieldSignature(convert._JsonDecoderSink, () => dart.global.Object.setPrototypeOf({
    [_reviver$]: {type: T$2.ObjectNAndObjectNToNObjectN(), isConst: false, isFinal: true},
    [_sink$0]: {type: T$2.SinkOfObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonDecoderSink))));
  var _allowInvalid = dart.privateName(convert, "AsciiCodec._allowInvalid");
  var _allowInvalid$ = dart.privateName(convert, "_allowInvalid");
  var _UnicodeSubsetDecoder__subsetMask = dart.privateName(convert, "_UnicodeSubsetDecoder._subsetMask");
  var _UnicodeSubsetDecoder__allowInvalid = dart.privateName(convert, "_UnicodeSubsetDecoder._allowInvalid");
  var _UnicodeSubsetEncoder__subsetMask = dart.privateName(convert, "_UnicodeSubsetEncoder._subsetMask");
  convert.Codec$ = dart.generic((S, T) => {
    var __t$CodecOfS$T = () => (__t$CodecOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("convert|Codec<1,2>")))();
    var __t$ObjectNToS = () => (__t$ObjectNToS = dart.constFn(S[_eval]("0(core|Object?)")))();
    var __t$CodecOfT$S = () => (__t$CodecOfT$S = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("convert|Codec<2,1>")))();
    var __t$ObjectNToT = () => (__t$ObjectNToT = dart.constFn(T[_eval]("0(core|Object?)")))();
    var __t$_InvertedCodecOfT$S = () => (__t$_InvertedCodecOfT$S = dart.constFn(convert._InvertedCodec$(T, S)))();
    class Codec extends core.Object {
      encode(input) {
        S[_as](input);
        return this.encoder.convert(input);
      }
      decode(encoded) {
        T[_as](encoded);
        return this.decoder.convert(encoded);
      }
      fuse(R, other) {
        T[_eval]("@<0>")[_bind](R)[_eval]("convert|Codec<1,2>")[_as](other);
        if (other == null) dart.nullFailed(I[103], 68, 35, "other");
        return new (convert._FusedCodec$(S, T, R)).new(this, other);
      }
      get inverted() {
        return new (__t$_InvertedCodecOfT$S()).new(this);
      }
    }
    (Codec.new = function() {
      this.$ti = this.$ti || __t$CodecOfS$T();
      ;
    }).prototype = Codec.prototype;
    dart.addRtiResources(Codec, ["convert|Codec"]);
    dart.setMethodSignature(Codec, () => dart.global.Object.setPrototypeOf({
      encode: __t$ObjectNToT(),
      decode: __t$ObjectNToS(),
      fuse: S[_eval]("convert|Codec<0,0^>(core|Object?)<core|Object?>")
    }, dart.getMethods(dart.global.Object.getPrototypeOf(Codec))));
    dart.setMethodsDefaultTypeArgSignature(Codec, () => dart.global.Object.setPrototypeOf({fuse: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(Codec))));
    dart.setGetterSignature(Codec, () => dart.global.Object.setPrototypeOf({inverted: __t$CodecOfT$S()}, dart.getGetters(dart.global.Object.getPrototypeOf(Codec))));
    dart.setLibraryUri(Codec, I[41]);
    return Codec;
  });
  convert.Codec = convert.Codec$();
  convert.Encoding = class Encoding extends G.CodecOfString$ListOfint() {
    decodeStream(byteStream) {
      if (byteStream == null) dart.nullFailed(I[102], 28, 49, "byteStream");
      return this.decoder.bind(byteStream).fold(T$2.StringBuffer(), new core.StringBuffer.new(), dart.fn((buffer, string) => {
        let t$36151;
        if (buffer == null) dart.nullFailed(I[102], 32, 27, "buffer");
        if (string == null) dart.nullFailed(I[102], 32, 42, "string");
        t$36151 = buffer;
        return (() => {
          t$36151.write(string);
          return t$36151;
        })();
      }, T$2.StringBufferAndStringToStringBuffer())).then(T$.String(), dart.fn(buffer => {
        if (buffer == null) dart.nullFailed(I[102], 33, 29, "buffer");
        return dart.toString(buffer);
      }, T$2.StringBufferToString()));
    }
    static getByName(name) {
      if (name == null) return null;
      return convert.Encoding._nameToEncoding[$_get](name[$toLowerCase]());
    }
  };
  (convert.Encoding.new = function() {
    this.$ti = this.$ti || T$2.Encoding();
    dart.global.Object.getPrototypeOf(convert.Encoding).new.call(this);
    ;
  }).prototype = convert.Encoding.prototype;
  dart.addRtiResources(convert.Encoding, ["convert|Encoding"]);
  dart.setMethodSignature(convert.Encoding, () => dart.global.Object.setPrototypeOf({decodeStream: T$2.StreamOfListOfintToFutureOfString()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert.Encoding))));
  dart.setStaticMethodSignature(convert.Encoding, () => ['getByName']);
  dart.setLibraryUri(convert.Encoding, I[41]);
  dart.setStaticFieldSignature(convert.Encoding, () => ['_nameToEncoding']);
  dart.defineLazy(convert.Encoding, {
    /*convert.Encoding._nameToEncoding*/get _nameToEncoding() {
      return new (G.IdentityMapOfString$Encoding()).from(["iso_8859-1:1987", convert.latin1, "iso-ir-100", convert.latin1, "iso_8859-1", convert.latin1, "iso-8859-1", convert.latin1, "latin1", convert.latin1, "l1", convert.latin1, "ibm819", convert.latin1, "cp819", convert.latin1, "csisolatin1", convert.latin1, "iso-ir-6", convert.ascii, "ansi_x3.4-1968", convert.ascii, "ansi_x3.4-1986", convert.ascii, "iso_646.irv:1991", convert.ascii, "iso646-us", convert.ascii, "us-ascii", convert.ascii, "us", convert.ascii, "ibm367", convert.ascii, "cp367", convert.ascii, "csascii", convert.ascii, "ascii", convert.ascii, "csutf8", convert.utf8, "utf-8", convert.utf8]);
    }
  }, false);
  convert.AsciiCodec = class AsciiCodec extends convert.Encoding {
    get [_allowInvalid$]() {
      return this[_allowInvalid];
    }
    set [_allowInvalid$](value) {
      super[_allowInvalid$] = value;
    }
    static ['_#new#tearOff'](opts) {
      let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : false;
      if (allowInvalid == null) dart.nullFailed(I[101], 36, 26, "allowInvalid");
      return new convert.AsciiCodec.new({allowInvalid: allowInvalid});
    }
    get name() {
      return "us-ascii";
    }
    encode(source) {
      T$.String()[_as](source);
      if (source == null) dart.nullFailed(I[101], 41, 27, "source");
      return this.encoder.convert(source);
    }
    decode(bytes, opts) {
      let t$36151;
      T$.ListOfint()[_as](bytes);
      if (bytes == null) dart.nullFailed(I[101], 51, 27, "bytes");
      let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : null;
      if (dart.test((t$36151 = allowInvalid, t$36151 == null ? this[_allowInvalid$] : t$36151))) {
        return (C[127] || CT.C127).convert(bytes);
      } else {
        return (C[128] || CT.C128).convert(bytes);
      }
    }
    get encoder() {
      return C[129] || CT.C129;
    }
    get decoder() {
      return dart.test(this[_allowInvalid$]) ? C[127] || CT.C127 : C[128] || CT.C128;
    }
  };
  (convert.AsciiCodec.new = function(opts) {
    let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : false;
    if (allowInvalid == null) dart.nullFailed(I[101], 36, 26, "allowInvalid");
    this[_allowInvalid] = allowInvalid;
    this.$ti = this.$ti || T$2.AsciiCodec();
    dart.global.Object.getPrototypeOf(convert.AsciiCodec).new.call(this);
    ;
  }).prototype = convert.AsciiCodec.prototype;
  dart.addRtiResources(convert.AsciiCodec, ["convert|AsciiCodec"]);
  dart.setMethodSignature(convert.AsciiCodec, () => dart.global.Object.setPrototypeOf({
    encode: T$2.ObjectNToUint8List(),
    decode: T$2.ObjectN__ToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.AsciiCodec))));
  dart.setGetterSignature(convert.AsciiCodec, () => dart.global.Object.setPrototypeOf({
    name: T$.String(),
    encoder: T$2.AsciiEncoder(),
    decoder: T$2.AsciiDecoder()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(convert.AsciiCodec))));
  dart.setLibraryUri(convert.AsciiCodec, I[41]);
  dart.setFieldSignature(convert.AsciiCodec, () => dart.global.Object.setPrototypeOf({[_allowInvalid$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert.AsciiCodec))));
  var _subsetMask$ = dart.privateName(convert, "_subsetMask");
  const _subsetMask$0 = _UnicodeSubsetEncoder__subsetMask;
  convert._UnicodeSubsetEncoder = class _UnicodeSubsetEncoder extends G.ConverterOfString$ListOfint() {
    get [_subsetMask$]() {
      return this[_subsetMask$0];
    }
    set [_subsetMask$](value) {
      super[_subsetMask$] = value;
    }
    static ['_#new#tearOff'](_subsetMask) {
      if (_subsetMask == null) dart.nullFailed(I[101], 71, 36, "_subsetMask");
      return new convert._UnicodeSubsetEncoder.new(_subsetMask);
    }
    convert(string, start = 0, end = null) {
      T$.String()[_as](string);
      if (string == null) dart.nullFailed(I[101], 77, 28, "string");
      if (start == null) dart.nullFailed(I[101], 77, 41, "start");
      let stringLength = string.length;
      end = core.RangeError.checkValidRange(start, end, stringLength);
      let length = dart.notNull(end) - dart.notNull(start);
      let result = _native_typed_data.NativeUint8List.new(length);
      for (let i = 0; i < length; i = i + 1) {
        let codeUnit = string[$codeUnitAt](dart.notNull(start) + i);
        if ((codeUnit & ~dart.notNull(this[_subsetMask$]) >>> 0) !== 0) {
          dart.throw(new core.ArgumentError.value(string, "string", "Contains invalid characters."));
        }
        result[$_set](i, codeUnit);
      }
      return result;
    }
    startChunkedConversion(sink) {
      T$2.SinkOfListOfint()[_as](sink);
      if (sink == null) dart.nullFailed(I[101], 97, 63, "sink");
      return new convert._UnicodeSubsetEncoderSink.new(this[_subsetMask$], T$2.ByteConversionSink()[_is](sink) ? sink : new convert._ByteAdapterSink.new(sink));
    }
    bind(stream) {
      T$2.StreamOfString()[_as](stream);
      if (stream == null) dart.nullFailed(I[101], 103, 41, "stream");
      return super.bind(stream);
    }
  };
  (convert._UnicodeSubsetEncoder.new = function(_subsetMask) {
    if (_subsetMask == null) dart.nullFailed(I[101], 71, 36, "_subsetMask");
    this[_subsetMask$0] = _subsetMask;
    this.$ti = this.$ti || T$2._UnicodeSubsetEncoder();
    dart.global.Object.getPrototypeOf(convert._UnicodeSubsetEncoder).new.call(this);
    ;
  }).prototype = convert._UnicodeSubsetEncoder.prototype;
  dart.addRtiResources(convert._UnicodeSubsetEncoder, ["convert|_UnicodeSubsetEncoder"]);
  dart.setMethodSignature(convert._UnicodeSubsetEncoder, () => dart.global.Object.setPrototypeOf({
    convert: T$2.ObjectNAndintAndintNToUint8List(),
    startChunkedConversion: T$2.ObjectNToStringConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._UnicodeSubsetEncoder))));
  dart.setLibraryUri(convert._UnicodeSubsetEncoder, I[41]);
  dart.setFieldSignature(convert._UnicodeSubsetEncoder, () => dart.global.Object.setPrototypeOf({[_subsetMask$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._UnicodeSubsetEncoder))));
  convert.AsciiEncoder = class AsciiEncoder extends convert._UnicodeSubsetEncoder {
    static ['_#new#tearOff']() {
      return new convert.AsciiEncoder.new();
    }
  };
  (convert.AsciiEncoder.new = function() {
    this.$ti = this.$ti || T$2.AsciiEncoder();
    dart.global.Object.getPrototypeOf(convert.AsciiEncoder).new.call(this, 127);
    ;
  }).prototype = convert.AsciiEncoder.prototype;
  dart.addRtiResources(convert.AsciiEncoder, ["convert|AsciiEncoder"]);
  dart.setLibraryUri(convert.AsciiEncoder, I[41]);
  convert._UnicodeSubsetEncoderSink = class _UnicodeSubsetEncoderSink extends convert.StringConversionSink {
    static ['_#new#tearOff'](_subsetMask, _sink) {
      if (_subsetMask == null) dart.nullFailed(I[101], 125, 34, "_subsetMask");
      if (_sink == null) dart.nullFailed(I[101], 125, 52, "_sink");
      return new convert._UnicodeSubsetEncoderSink.new(_subsetMask, _sink);
    }
    close() {
      this[_sink$0].close();
    }
    addSlice(source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[101], 131, 24, "source");
      if (start == null) dart.nullFailed(I[101], 131, 36, "start");
      if (end == null) dart.nullFailed(I[101], 131, 47, "end");
      if (isLast == null) dart.nullFailed(I[101], 131, 57, "isLast");
      core.RangeError.checkValidRange(start, end, source.length);
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let codeUnit = source[$codeUnitAt](i);
        if ((codeUnit & ~dart.notNull(this[_subsetMask$]) >>> 0) !== 0) {
          dart.throw(new core.ArgumentError.new("Source contains invalid character with code point: " + dart.strSafe(codeUnit) + "."));
        }
      }
      this[_sink$0].add(source[$codeUnits][$sublist](start, end));
      if (dart.test(isLast)) {
        this.close();
      }
    }
  };
  (convert._UnicodeSubsetEncoderSink.new = function(_subsetMask, _sink) {
    if (_subsetMask == null) dart.nullFailed(I[101], 125, 34, "_subsetMask");
    if (_sink == null) dart.nullFailed(I[101], 125, 52, "_sink");
    this[_subsetMask$] = _subsetMask;
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._UnicodeSubsetEncoderSink).new.call(this);
    ;
  }).prototype = convert._UnicodeSubsetEncoderSink.prototype;
  dart.addRtiResources(convert._UnicodeSubsetEncoderSink, ["convert|_UnicodeSubsetEncoderSink"]);
  dart.setMethodSignature(convert._UnicodeSubsetEncoderSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    addSlice: T$2.StringAndintAndint__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._UnicodeSubsetEncoderSink))));
  dart.setLibraryUri(convert._UnicodeSubsetEncoderSink, I[41]);
  dart.setFieldSignature(convert._UnicodeSubsetEncoderSink, () => dart.global.Object.setPrototypeOf({
    [_sink$0]: {type: T$2.ByteConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_subsetMask$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._UnicodeSubsetEncoderSink))));
  var _convertInvalid = dart.privateName(convert, "_convertInvalid");
  const _allowInvalid$0 = _UnicodeSubsetDecoder__allowInvalid;
  const _subsetMask$1 = _UnicodeSubsetDecoder__subsetMask;
  convert._UnicodeSubsetDecoder = class _UnicodeSubsetDecoder extends G.ConverterOfListOfint$String() {
    get [_allowInvalid$]() {
      return this[_allowInvalid$0];
    }
    set [_allowInvalid$](value) {
      super[_allowInvalid$] = value;
    }
    get [_subsetMask$]() {
      return this[_subsetMask$1];
    }
    set [_subsetMask$](value) {
      super[_subsetMask$] = value;
    }
    convert(bytes, start = 0, end = null) {
      T$.ListOfint()[_as](bytes);
      if (bytes == null) dart.nullFailed(I[101], 172, 28, "bytes");
      if (start == null) dart.nullFailed(I[101], 172, 40, "start");
      end = core.RangeError.checkValidRange(start, end, bytes[$length]);
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let byte = bytes[$_get](i);
        if ((dart.notNull(byte) & ~dart.notNull(this[_subsetMask$]) >>> 0) !== 0) {
          if (!dart.test(this[_allowInvalid$])) {
            dart.throw(new core.FormatException.new("Invalid value in input: " + dart.str(byte)));
          }
          return this[_convertInvalid](bytes, start, end);
        }
      }
      return core.String.fromCharCodes(bytes, start, end);
    }
    [_convertInvalid](bytes, start, end) {
      if (bytes == null) dart.nullFailed(I[101], 186, 36, "bytes");
      if (start == null) dart.nullFailed(I[101], 186, 47, "start");
      if (end == null) dart.nullFailed(I[101], 186, 58, "end");
      let buffer = new core.StringBuffer.new();
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let value = bytes[$_get](i);
        if ((dart.notNull(value) & ~dart.notNull(this[_subsetMask$]) >>> 0) !== 0) value = 65533;
        buffer.writeCharCode(value);
      }
      return dart.toString(buffer);
    }
    bind(stream) {
      T$2.StreamOfListOfint()[_as](stream);
      if (stream == null) dart.nullFailed(I[101], 203, 41, "stream");
      return super.bind(stream);
    }
  };
  (convert._UnicodeSubsetDecoder.new = function(_allowInvalid, _subsetMask) {
    if (_allowInvalid == null) dart.nullFailed(I[101], 165, 36, "_allowInvalid");
    if (_subsetMask == null) dart.nullFailed(I[101], 165, 56, "_subsetMask");
    this[_allowInvalid$0] = _allowInvalid;
    this[_subsetMask$1] = _subsetMask;
    this.$ti = this.$ti || T$2._UnicodeSubsetDecoder();
    dart.global.Object.getPrototypeOf(convert._UnicodeSubsetDecoder).new.call(this);
    ;
  }).prototype = convert._UnicodeSubsetDecoder.prototype;
  dart.addRtiResources(convert._UnicodeSubsetDecoder, ["convert|_UnicodeSubsetDecoder"]);
  dart.setMethodSignature(convert._UnicodeSubsetDecoder, () => dart.global.Object.setPrototypeOf({
    convert: T$2.ObjectNAndintAndintNToString(),
    [_convertInvalid]: T$2.ListOfintAndintAndintToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._UnicodeSubsetDecoder))));
  dart.setLibraryUri(convert._UnicodeSubsetDecoder, I[41]);
  dart.setFieldSignature(convert._UnicodeSubsetDecoder, () => dart.global.Object.setPrototypeOf({
    [_allowInvalid$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_subsetMask$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._UnicodeSubsetDecoder))));
  convert.AsciiDecoder = class AsciiDecoder extends convert._UnicodeSubsetDecoder {
    static ['_#new#tearOff'](opts) {
      let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : false;
      if (allowInvalid == null) dart.nullFailed(I[101], 230, 28, "allowInvalid");
      return new convert.AsciiDecoder.new({allowInvalid: allowInvalid});
    }
    startChunkedConversion(sink) {
      T$2.SinkOfString()[_as](sink);
      if (sink == null) dart.nullFailed(I[101], 237, 58, "sink");
      let stringSink = null;
      if (T$2.StringConversionSink()[_is](sink)) {
        stringSink = sink;
      } else {
        stringSink = new convert._StringAdapterSink.new(sink);
      }
      if (dart.test(this[_allowInvalid$])) {
        return new convert._ErrorHandlingAsciiDecoderSink.new(stringSink.asUtf8Sink(false));
      } else {
        return new convert._SimpleAsciiDecoderSink.new(stringSink);
      }
    }
  };
  (convert.AsciiDecoder.new = function(opts) {
    let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : false;
    if (allowInvalid == null) dart.nullFailed(I[101], 230, 28, "allowInvalid");
    this.$ti = this.$ti || T$2.AsciiDecoder();
    dart.global.Object.getPrototypeOf(convert.AsciiDecoder).new.call(this, allowInvalid, 127);
    ;
  }).prototype = convert.AsciiDecoder.prototype;
  dart.addRtiResources(convert.AsciiDecoder, ["convert|AsciiDecoder"]);
  dart.setMethodSignature(convert.AsciiDecoder, () => dart.global.Object.setPrototypeOf({startChunkedConversion: T$2.ObjectNToByteConversionSink()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert.AsciiDecoder))));
  dart.setLibraryUri(convert.AsciiDecoder, I[41]);
  var _utf8Sink$ = dart.privateName(convert, "_utf8Sink");
  convert.ByteConversionSink = class ByteConversionSink extends core.Object {
    static ['_#withCallback#tearOff'](callback) {
      if (callback == null) dart.nullFailed(I[104], 17, 12, "callback");
      return new convert._ByteCallbackSink.new(callback);
    }
    static ['_#from#tearOff'](sink) {
      if (sink == null) dart.nullFailed(I[104], 18, 51, "sink");
      return new convert._ByteAdapterSink.new(sink);
    }
    addSlice(chunk, start, end, isLast) {
      if (chunk == null) dart.nullFailed(I[104], 28, 27, "chunk");
      if (start == null) dart.nullFailed(I[104], 28, 38, "start");
      if (end == null) dart.nullFailed(I[104], 28, 49, "end");
      if (isLast == null) dart.nullFailed(I[104], 28, 59, "isLast");
      this.add(chunk[$sublist](start, end));
      if (dart.test(isLast)) this.close();
    }
  };
  (convert.ByteConversionSink.new = function() {
    ;
  }).prototype = convert.ByteConversionSink.prototype;
  dart.addRtiResources(convert.ByteConversionSink, ["convert|ByteConversionSink", "convert|ChunkedConversionSink", "core|Sink"]);
  dart.setMethodSignature(convert.ByteConversionSink, () => dart.global.Object.setPrototypeOf({addSlice: T$2.ListOfintAndintAndint__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert.ByteConversionSink))));
  dart.setStaticMethodSignature(convert.ByteConversionSink, () => ['withCallback', 'from']);
  dart.setLibraryUri(convert.ByteConversionSink, I[41]);
  convert._ErrorHandlingAsciiDecoderSink = class _ErrorHandlingAsciiDecoderSink extends convert.ByteConversionSink {
    static ['_#new#tearOff'](_utf8Sink) {
      if (_utf8Sink == null) dart.nullFailed(I[101], 258, 39, "_utf8Sink");
      return new convert._ErrorHandlingAsciiDecoderSink.new(_utf8Sink);
    }
    close() {
      this[_utf8Sink$].close();
    }
    add(source) {
      T$.ListOfint()[_as](source);
      if (source == null) dart.nullFailed(I[101], 264, 22, "source");
      this.addSlice(source, 0, source[$length], false);
    }
    addSlice(source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[101], 268, 27, "source");
      if (start == null) dart.nullFailed(I[101], 268, 39, "start");
      if (end == null) dart.nullFailed(I[101], 268, 50, "end");
      if (isLast == null) dart.nullFailed(I[101], 268, 60, "isLast");
      core.RangeError.checkValidRange(start, end, source[$length]);
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        if ((dart.notNull(source[$_get](i)) & ~127 >>> 0) !== 0) {
          if (dart.notNull(i) > dart.notNull(start)) this[_utf8Sink$].addSlice(source, start, i, false);
          this[_utf8Sink$].add(C[130] || CT.C130);
          start = dart.notNull(i) + 1;
        }
      }
      if (dart.notNull(start) < dart.notNull(end)) {
        this[_utf8Sink$].addSlice(source, start, end, isLast);
      } else if (dart.test(isLast)) {
        this.close();
      }
    }
  };
  (convert._ErrorHandlingAsciiDecoderSink.new = function(_utf8Sink) {
    if (_utf8Sink == null) dart.nullFailed(I[101], 258, 39, "_utf8Sink");
    this[_utf8Sink$] = _utf8Sink;
    dart.global.Object.getPrototypeOf(convert._ErrorHandlingAsciiDecoderSink).new.call(this);
    ;
  }).prototype = convert._ErrorHandlingAsciiDecoderSink.prototype;
  dart.addRtiResources(convert._ErrorHandlingAsciiDecoderSink, ["convert|_ErrorHandlingAsciiDecoderSink"]);
  dart.setMethodSignature(convert._ErrorHandlingAsciiDecoderSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    add: T$.ObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._ErrorHandlingAsciiDecoderSink))));
  dart.setLibraryUri(convert._ErrorHandlingAsciiDecoderSink, I[41]);
  dart.setFieldSignature(convert._ErrorHandlingAsciiDecoderSink, () => dart.global.Object.setPrototypeOf({[_utf8Sink$]: {type: T$2.ByteConversionSink(), isConst: false, isFinal: false, libraryUri: I[41]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._ErrorHandlingAsciiDecoderSink))));
  convert._SimpleAsciiDecoderSink = class _SimpleAsciiDecoderSink extends convert.ByteConversionSink {
    static ['_#new#tearOff'](_sink) {
      if (_sink == null) dart.nullFailed(I[101], 288, 32, "_sink");
      return new convert._SimpleAsciiDecoderSink.new(_sink);
    }
    close() {
      this[_sink$0].close();
    }
    add(source) {
      T$.ListOfint()[_as](source);
      if (source == null) dart.nullFailed(I[101], 294, 22, "source");
      for (let i = 0; i < dart.notNull(source[$length]); i = i + 1) {
        if ((dart.notNull(source[$_get](i)) & ~127 >>> 0) !== 0) {
          dart.throw(new core.FormatException.new("Source contains non-ASCII bytes."));
        }
      }
      this[_sink$0].add(core.String.fromCharCodes(source));
    }
    addSlice(source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[101], 303, 27, "source");
      if (start == null) dart.nullFailed(I[101], 303, 39, "start");
      if (end == null) dart.nullFailed(I[101], 303, 50, "end");
      if (isLast == null) dart.nullFailed(I[101], 303, 60, "isLast");
      let length = source[$length];
      core.RangeError.checkValidRange(start, end, length);
      if (dart.notNull(start) < dart.notNull(end)) {
        if (start !== 0 || end != length) {
          source = source[$sublist](start, end);
        }
        this.add(source);
      }
      if (dart.test(isLast)) this.close();
    }
  };
  (convert._SimpleAsciiDecoderSink.new = function(_sink) {
    if (_sink == null) dart.nullFailed(I[101], 288, 32, "_sink");
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._SimpleAsciiDecoderSink).new.call(this);
    ;
  }).prototype = convert._SimpleAsciiDecoderSink.prototype;
  dart.addRtiResources(convert._SimpleAsciiDecoderSink, ["convert|_SimpleAsciiDecoderSink"]);
  dart.setMethodSignature(convert._SimpleAsciiDecoderSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    add: T$.ObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._SimpleAsciiDecoderSink))));
  dart.setLibraryUri(convert._SimpleAsciiDecoderSink, I[41]);
  dart.setFieldSignature(convert._SimpleAsciiDecoderSink, () => dart.global.Object.setPrototypeOf({[_sink$0]: {type: T$2.Sink(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._SimpleAsciiDecoderSink))));
  var _encoder = dart.privateName(convert, "Base64Codec._encoder");
  var Base64Encoder__urlSafe = dart.privateName(convert, "Base64Encoder._urlSafe");
  var _encoder$ = dart.privateName(convert, "_encoder");
  convert.Base64Codec = class Base64Codec extends G.CodecOfListOfint$String() {
    get [_encoder$]() {
      return this[_encoder];
    }
    set [_encoder$](value) {
      super[_encoder$] = value;
    }
    static ['_#new#tearOff']() {
      return new convert.Base64Codec.new();
    }
    static ['_#urlSafe#tearOff']() {
      return new convert.Base64Codec.urlSafe();
    }
    get encoder() {
      return this[_encoder$];
    }
    get decoder() {
      return C[133] || CT.C133;
    }
    decode(encoded) {
      T$.String()[_as](encoded);
      if (encoded == null) dart.nullFailed(I[105], 83, 27, "encoded");
      return this.decoder.convert(encoded);
    }
    normalize(source, start = 0, end = null) {
      let t$36151, t$36151$, t$36151$0, t$36151$1, t$36151$2;
      if (source == null) dart.nullFailed(I[105], 97, 27, "source");
      if (start == null) dart.nullFailed(I[105], 97, 40, "start");
      end = core.RangeError.checkValidRange(start, end, source.length);
      let buffer = null;
      let sliceStart = start;
      let alphabet = convert._Base64Encoder._base64Alphabet;
      let inverseAlphabet = convert._Base64Decoder._inverseAlphabet;
      let firstPadding = -1;
      let firstPaddingSourceIndex = -1;
      let paddingCount = 0;
      for (let i = start; dart.notNull(i) < dart.notNull(end);) {
        let sliceEnd = i;
        let char = source[$codeUnitAt]((t$36151 = i, i = dart.notNull(t$36151) + 1, t$36151));
        let originalChar = char;
        if (char === 37) {
          if (dart.notNull(i) + 2 <= dart.notNull(end)) {
            char = _internal.parseHexByte(source, i);
            i = dart.notNull(i) + 2;
            if (char === 37) char = -1;
          } else {
            char = -1;
          }
        }
        if (0 <= dart.notNull(char) && dart.notNull(char) <= 127) {
          let value = inverseAlphabet[$_get](char);
          if (dart.notNull(value) >= 0) {
            char = alphabet[$codeUnitAt](value);
            if (char == originalChar) continue;
          } else if (value === -1) {
            if (firstPadding < 0) {
              firstPadding = dart.notNull((t$36151$0 = (t$36151$ = buffer, t$36151$ == null ? null : t$36151$.length), t$36151$0 == null ? 0 : t$36151$0)) + (dart.notNull(sliceEnd) - dart.notNull(sliceStart));
              firstPaddingSourceIndex = sliceEnd;
            }
            paddingCount = paddingCount + 1;
            if (originalChar === 61) continue;
          }
          if (value !== -2) {
            t$36151$2 = (t$36151$1 = buffer, t$36151$1 == null ? buffer = new core.StringBuffer.new() : t$36151$1);
            (() => {
              t$36151$2.write(source[$substring](sliceStart, sliceEnd));
              t$36151$2.writeCharCode(char);
              return t$36151$2;
            })();
            sliceStart = i;
            continue;
          }
        }
        dart.throw(new core.FormatException.new("Invalid base64 data", source, sliceEnd));
      }
      if (buffer != null) {
        buffer.write(source[$substring](sliceStart, end));
        if (firstPadding >= 0) {
          convert.Base64Codec._checkPadding(source, firstPaddingSourceIndex, end, firstPadding, paddingCount, buffer.length);
        } else {
          let endLength = (dart.notNull(buffer.length) - 1)[$modulo](4) + 1;
          if (endLength === 1) {
            dart.throw(new core.FormatException.new("Invalid base64 encoding length ", source, end));
          }
          while (endLength < 4) {
            buffer.write("=");
            endLength = endLength + 1;
          }
        }
        return source[$replaceRange](start, end, dart.toString(buffer));
      }
      let length = dart.notNull(end) - dart.notNull(start);
      if (firstPadding >= 0) {
        convert.Base64Codec._checkPadding(source, firstPaddingSourceIndex, end, firstPadding, paddingCount, length);
      } else {
        let endLength = length[$modulo](4);
        if (endLength === 1) {
          dart.throw(new core.FormatException.new("Invalid base64 encoding length ", source, end));
        }
        if (endLength > 1) {
          source = source[$replaceRange](end, end, endLength === 2 ? "==" : "=");
        }
      }
      return source;
    }
    static _checkPadding(source, sourceIndex, sourceEnd, firstPadding, paddingCount, length) {
      if (source == null) dart.nullFailed(I[105], 195, 36, "source");
      if (sourceIndex == null) dart.nullFailed(I[105], 195, 48, "sourceIndex");
      if (sourceEnd == null) dart.nullFailed(I[105], 195, 65, "sourceEnd");
      if (firstPadding == null) dart.nullFailed(I[105], 196, 11, "firstPadding");
      if (paddingCount == null) dart.nullFailed(I[105], 196, 29, "paddingCount");
      if (length == null) dart.nullFailed(I[105], 196, 47, "length");
      if (length[$modulo](4) !== 0) {
        dart.throw(new core.FormatException.new("Invalid base64 padding, padded length must be multiple of four, " + "is " + dart.str(length), source, sourceEnd));
      }
      if (dart.notNull(firstPadding) + dart.notNull(paddingCount) !== length) {
        dart.throw(new core.FormatException.new("Invalid base64 padding, '=' not at the end", source, sourceIndex));
      }
      if (dart.notNull(paddingCount) > 2) {
        dart.throw(new core.FormatException.new("Invalid base64 padding, more than two '=' characters", source, sourceIndex));
      }
    }
  };
  (convert.Base64Codec.new = function() {
    this[_encoder] = C[131] || CT.C131;
    this.$ti = this.$ti || T$2.Base64Codec();
    dart.global.Object.getPrototypeOf(convert.Base64Codec).new.call(this);
    ;
  }).prototype = convert.Base64Codec.prototype;
  (convert.Base64Codec.urlSafe = function() {
    this[_encoder] = C[132] || CT.C132;
    this.$ti = this.$ti || T$2.Base64Codec();
    dart.global.Object.getPrototypeOf(convert.Base64Codec).new.call(this);
    ;
  }).prototype = convert.Base64Codec.prototype;
  dart.addRtiResources(convert.Base64Codec, ["convert|Base64Codec"]);
  dart.setMethodSignature(convert.Base64Codec, () => dart.global.Object.setPrototypeOf({
    decode: T$2.ObjectNToUint8List(),
    normalize: T$2.StringAndintAndintNToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.Base64Codec))));
  dart.setStaticMethodSignature(convert.Base64Codec, () => ['_checkPadding']);
  dart.setGetterSignature(convert.Base64Codec, () => dart.global.Object.setPrototypeOf({
    encoder: T$2.Base64Encoder(),
    decoder: T$2.Base64Decoder()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(convert.Base64Codec))));
  dart.setLibraryUri(convert.Base64Codec, I[41]);
  dart.setFieldSignature(convert.Base64Codec, () => dart.global.Object.setPrototypeOf({[_encoder$]: {type: T$2.Base64Encoder(), isConst: false, isFinal: true, libraryUri: I[41]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert.Base64Codec))));
  var _urlSafe = dart.privateName(convert, "_urlSafe");
  const _urlSafe$ = Base64Encoder__urlSafe;
  convert.Base64Encoder = class Base64Encoder extends G.ConverterOfListOfint$String() {
    get [_urlSafe]() {
      return this[_urlSafe$];
    }
    set [_urlSafe](value) {
      super[_urlSafe] = value;
    }
    static ['_#new#tearOff']() {
      return new convert.Base64Encoder.new();
    }
    static ['_#urlSafe#tearOff']() {
      return new convert.Base64Encoder.urlSafe();
    }
    convert(input) {
      T$.ListOfint()[_as](input);
      if (input == null) dart.nullFailed(I[105], 240, 28, "input");
      if (dart.test(input[$isEmpty])) return "";
      let encoder = new convert._Base64Encoder.new(this[_urlSafe]);
      let buffer = dart.nullCheck(encoder.encode(input, 0, input[$length], true));
      return core.String.fromCharCodes(buffer);
    }
    startChunkedConversion(sink) {
      T$2.SinkOfString()[_as](sink);
      if (sink == null) dart.nullFailed(I[105], 247, 58, "sink");
      if (T$2.StringConversionSink()[_is](sink)) {
        return new convert._Utf8Base64EncoderSink.new(sink.asUtf8Sink(false), this[_urlSafe]);
      }
      return new convert._AsciiBase64EncoderSink.new(sink, this[_urlSafe]);
    }
  };
  (convert.Base64Encoder.new = function() {
    this[_urlSafe$] = false;
    this.$ti = this.$ti || T$2.Base64Encoder();
    dart.global.Object.getPrototypeOf(convert.Base64Encoder).new.call(this);
    ;
  }).prototype = convert.Base64Encoder.prototype;
  (convert.Base64Encoder.urlSafe = function() {
    this[_urlSafe$] = true;
    this.$ti = this.$ti || T$2.Base64Encoder();
    dart.global.Object.getPrototypeOf(convert.Base64Encoder).new.call(this);
    ;
  }).prototype = convert.Base64Encoder.prototype;
  dart.addRtiResources(convert.Base64Encoder, ["convert|Base64Encoder"]);
  dart.setMethodSignature(convert.Base64Encoder, () => dart.global.Object.setPrototypeOf({
    convert: T$.ObjectNToString(),
    startChunkedConversion: T$2.ObjectNToByteConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.Base64Encoder))));
  dart.setLibraryUri(convert.Base64Encoder, I[41]);
  dart.setFieldSignature(convert.Base64Encoder, () => dart.global.Object.setPrototypeOf({[_urlSafe]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert.Base64Encoder))));
  var _state$ = dart.privateName(convert, "_state");
  var _alphabet = dart.privateName(convert, "_alphabet");
  convert._Base64Encoder = class _Base64Encoder extends core.Object {
    static ['_#new#tearOff'](urlSafe) {
      if (urlSafe == null) dart.nullFailed(I[105], 283, 23, "urlSafe");
      return new convert._Base64Encoder.new(urlSafe);
    }
    static _encodeState(count, bits) {
      if (count == null) dart.nullFailed(I[105], 287, 31, "count");
      if (bits == null) dart.nullFailed(I[105], 287, 42, "bits");
      if (!(dart.notNull(count) <= 3)) dart.assertFailed(null, I[105], 288, 12, "count <= _countMask");
      return (bits[$leftShift](2) | dart.notNull(count)) >>> 0;
    }
    static _stateBits(state) {
      if (state == null) dart.nullFailed(I[105], 293, 29, "state");
      return state[$rightShift](2);
    }
    static _stateCount(state) {
      if (state == null) dart.nullFailed(I[105], 296, 30, "state");
      return (dart.notNull(state) & 3) >>> 0;
    }
    createBuffer(bufferLength) {
      if (bufferLength == null) dart.nullFailed(I[105], 299, 30, "bufferLength");
      return _native_typed_data.NativeUint8List.new(bufferLength);
    }
    encode(bytes, start, end, isLast) {
      if (bytes == null) dart.nullFailed(I[105], 312, 31, "bytes");
      if (start == null) dart.nullFailed(I[105], 312, 42, "start");
      if (end == null) dart.nullFailed(I[105], 312, 53, "end");
      if (isLast == null) dart.nullFailed(I[105], 312, 63, "isLast");
      if (!(0 <= dart.notNull(start))) dart.assertFailed(null, I[105], 313, 12, "0 <= start");
      if (!(dart.notNull(start) <= dart.notNull(end))) dart.assertFailed(null, I[105], 314, 12, "start <= end");
      if (!(dart.notNull(end) <= dart.notNull(bytes[$length]))) dart.assertFailed(null, I[105], 315, 12, "end <= bytes.length");
      let length = dart.notNull(end) - dart.notNull(start);
      let count = convert._Base64Encoder._stateCount(this[_state$]);
      let byteCount = dart.notNull(count) + length;
      let fullChunks = (byteCount / 3)[$truncate]();
      let partialChunkLength = byteCount - fullChunks * 3;
      let bufferLength = fullChunks * 4;
      if (dart.test(isLast) && partialChunkLength > 0) {
        bufferLength = bufferLength + 4;
      }
      let output = this.createBuffer(bufferLength);
      this[_state$] = convert._Base64Encoder.encodeChunk(this[_alphabet], bytes, start, end, isLast, output, 0, this[_state$]);
      if (bufferLength > 0) return output;
      return null;
    }
    static encodeChunk(alphabet, bytes, start, end, isLast, output, outputIndex, state) {
      let t$36151, t$36151$, t$36151$0, t$36151$1;
      if (alphabet == null) dart.nullFailed(I[105], 335, 33, "alphabet");
      if (bytes == null) dart.nullFailed(I[105], 335, 53, "bytes");
      if (start == null) dart.nullFailed(I[105], 335, 64, "start");
      if (end == null) dart.nullFailed(I[105], 335, 75, "end");
      if (isLast == null) dart.nullFailed(I[105], 336, 12, "isLast");
      if (output == null) dart.nullFailed(I[105], 336, 30, "output");
      if (outputIndex == null) dart.nullFailed(I[105], 336, 42, "outputIndex");
      if (state == null) dart.nullFailed(I[105], 336, 59, "state");
      let bits = convert._Base64Encoder._stateBits(state);
      let expectedChars = 3 - dart.notNull(convert._Base64Encoder._stateCount(state));
      let byteOr = 0;
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let byte = bytes[$_get](i);
        byteOr = (byteOr | dart.notNull(byte)) >>> 0;
        bits = (dart.notNull(bits) << 8 | dart.notNull(byte)) & 16777215;
        expectedChars = expectedChars - 1;
        if (expectedChars === 0) {
          output[$_set]((t$36151 = outputIndex, outputIndex = dart.notNull(t$36151) + 1, t$36151), alphabet[$codeUnitAt]((bits[$rightShift](18) & 63) >>> 0));
          output[$_set]((t$36151$ = outputIndex, outputIndex = dart.notNull(t$36151$) + 1, t$36151$), alphabet[$codeUnitAt]((bits[$rightShift](12) & 63) >>> 0));
          output[$_set]((t$36151$0 = outputIndex, outputIndex = dart.notNull(t$36151$0) + 1, t$36151$0), alphabet[$codeUnitAt]((bits[$rightShift](6) & 63) >>> 0));
          output[$_set]((t$36151$1 = outputIndex, outputIndex = dart.notNull(t$36151$1) + 1, t$36151$1), alphabet[$codeUnitAt]((dart.notNull(bits) & 63) >>> 0));
          expectedChars = 3;
          bits = 0;
        }
      }
      if (byteOr >= 0 && byteOr <= 255) {
        if (dart.test(isLast) && expectedChars < 3) {
          convert._Base64Encoder.writeFinalChunk(alphabet, output, outputIndex, 3 - expectedChars, bits);
          return 0;
        }
        return convert._Base64Encoder._encodeState(3 - expectedChars, bits);
      }
      let i = start;
      while (dart.notNull(i) < dart.notNull(end)) {
        let byte = bytes[$_get](i);
        if (dart.notNull(byte) < 0 || dart.notNull(byte) > 255) break;
        i = dart.notNull(i) + 1;
      }
      dart.throw(new core.ArgumentError.value(bytes, "Not a byte value at index " + dart.str(i) + ": 0x" + bytes[$_get](i)[$toRadixString](16)));
    }
    static writeFinalChunk(alphabet, output, outputIndex, count, bits) {
      let t$36151, t$36151$, t$36151$0, t$36151$1, t$36151$2, t$36151$3, t$36151$4, t$36151$5;
      if (alphabet == null) dart.nullFailed(I[105], 383, 14, "alphabet");
      if (output == null) dart.nullFailed(I[105], 383, 34, "output");
      if (outputIndex == null) dart.nullFailed(I[105], 383, 46, "outputIndex");
      if (count == null) dart.nullFailed(I[105], 383, 63, "count");
      if (bits == null) dart.nullFailed(I[105], 383, 74, "bits");
      if (!(dart.notNull(count) > 0)) dart.assertFailed(null, I[105], 384, 12, "count > 0");
      if (count === 1) {
        output[$_set]((t$36151 = outputIndex, outputIndex = dart.notNull(t$36151) + 1, t$36151), alphabet[$codeUnitAt]((bits[$rightShift](2) & 63) >>> 0));
        output[$_set]((t$36151$ = outputIndex, outputIndex = dart.notNull(t$36151$) + 1, t$36151$), alphabet[$codeUnitAt]((dart.notNull(bits) << 4 & 63) >>> 0));
        output[$_set]((t$36151$0 = outputIndex, outputIndex = dart.notNull(t$36151$0) + 1, t$36151$0), 61);
        output[$_set]((t$36151$1 = outputIndex, outputIndex = dart.notNull(t$36151$1) + 1, t$36151$1), 61);
      } else {
        if (!(count === 2)) dart.assertFailed(null, I[105], 391, 14, "count == 2");
        output[$_set]((t$36151$2 = outputIndex, outputIndex = dart.notNull(t$36151$2) + 1, t$36151$2), alphabet[$codeUnitAt]((bits[$rightShift](10) & 63) >>> 0));
        output[$_set]((t$36151$3 = outputIndex, outputIndex = dart.notNull(t$36151$3) + 1, t$36151$3), alphabet[$codeUnitAt]((bits[$rightShift](4) & 63) >>> 0));
        output[$_set]((t$36151$4 = outputIndex, outputIndex = dart.notNull(t$36151$4) + 1, t$36151$4), alphabet[$codeUnitAt]((dart.notNull(bits) << 2 & 63) >>> 0));
        output[$_set]((t$36151$5 = outputIndex, outputIndex = dart.notNull(t$36151$5) + 1, t$36151$5), 61);
      }
    }
  };
  (convert._Base64Encoder.new = function(urlSafe) {
    if (urlSafe == null) dart.nullFailed(I[105], 283, 23, "urlSafe");
    this[_state$] = 0;
    this[_alphabet] = dart.test(urlSafe) ? convert._Base64Encoder._base64UrlAlphabet : convert._Base64Encoder._base64Alphabet;
    ;
  }).prototype = convert._Base64Encoder.prototype;
  dart.addRtiResources(convert._Base64Encoder, ["convert|_Base64Encoder"]);
  dart.setMethodSignature(convert._Base64Encoder, () => dart.global.Object.setPrototypeOf({
    createBuffer: T$0.intToUint8List(),
    encode: T$2.ListOfintAndintAndint__ToUint8ListN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Base64Encoder))));
  dart.setStaticMethodSignature(convert._Base64Encoder, () => ['_encodeState', '_stateBits', '_stateCount', 'encodeChunk', 'writeFinalChunk']);
  dart.setLibraryUri(convert._Base64Encoder, I[41]);
  dart.setFieldSignature(convert._Base64Encoder, () => dart.global.Object.setPrototypeOf({
    [_state$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_alphabet]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._Base64Encoder))));
  dart.setStaticFieldSignature(convert._Base64Encoder, () => ['_base64Alphabet', '_base64UrlAlphabet', '_valueShift', '_countMask', '_sixBitMask']);
  dart.defineLazy(convert._Base64Encoder, {
    /*convert._Base64Encoder._base64Alphabet*/get _base64Alphabet() {
      return "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
    },
    /*convert._Base64Encoder._base64UrlAlphabet*/get _base64UrlAlphabet() {
      return "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
    },
    /*convert._Base64Encoder._valueShift*/get _valueShift() {
      return 2;
    },
    /*convert._Base64Encoder._countMask*/get _countMask() {
      return 3;
    },
    /*convert._Base64Encoder._sixBitMask*/get _sixBitMask() {
      return 63;
    }
  }, false);
  convert._BufferCachingBase64Encoder = class _BufferCachingBase64Encoder extends convert._Base64Encoder {
    static ['_#new#tearOff'](urlSafe) {
      if (urlSafe == null) dart.nullFailed(I[105], 407, 36, "urlSafe");
      return new convert._BufferCachingBase64Encoder.new(urlSafe);
    }
    createBuffer(bufferLength) {
      if (bufferLength == null) dart.nullFailed(I[105], 409, 30, "bufferLength");
      let buffer = this.bufferCache;
      if (buffer == null || dart.notNull(buffer[$length]) < dart.notNull(bufferLength)) {
        this.bufferCache = buffer = _native_typed_data.NativeUint8List.new(bufferLength);
      }
      return typed_data.Uint8List.view(buffer[$buffer], buffer[$offsetInBytes], bufferLength);
    }
  };
  (convert._BufferCachingBase64Encoder.new = function(urlSafe) {
    if (urlSafe == null) dart.nullFailed(I[105], 407, 36, "urlSafe");
    this.bufferCache = null;
    dart.global.Object.getPrototypeOf(convert._BufferCachingBase64Encoder).new.call(this, urlSafe);
    ;
  }).prototype = convert._BufferCachingBase64Encoder.prototype;
  dart.addRtiResources(convert._BufferCachingBase64Encoder, ["convert|_BufferCachingBase64Encoder"]);
  dart.setLibraryUri(convert._BufferCachingBase64Encoder, I[41]);
  dart.setFieldSignature(convert._BufferCachingBase64Encoder, () => dart.global.Object.setPrototypeOf({bufferCache: {type: T$2.Uint8ListN(), isConst: false, isFinal: false, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._BufferCachingBase64Encoder))));
  var _add$0 = dart.privateName(convert, "_add");
  convert._Base64EncoderSink = class _Base64EncoderSink extends convert.ByteConversionSink {
    add(source) {
      T$.ListOfint()[_as](source);
      if (source == null) dart.nullFailed(I[105], 420, 22, "source");
      this[_add$0](source, 0, source[$length], false);
    }
    close() {
      this[_add$0](C[134] || CT.C134, 0, 0, true);
    }
    addSlice(source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[105], 428, 27, "source");
      if (start == null) dart.nullFailed(I[105], 428, 39, "start");
      if (end == null) dart.nullFailed(I[105], 428, 50, "end");
      if (isLast == null) dart.nullFailed(I[105], 428, 60, "isLast");
      if (end == null) dart.throw(new core.ArgumentError.notNull("end"));
      core.RangeError.checkValidRange(start, end, source[$length]);
      this[_add$0](source, start, end, isLast);
    }
  };
  (convert._Base64EncoderSink.new = function() {
    dart.global.Object.getPrototypeOf(convert._Base64EncoderSink).new.call(this);
    ;
  }).prototype = convert._Base64EncoderSink.prototype;
  dart.addRtiResources(convert._Base64EncoderSink, ["convert|_Base64EncoderSink"]);
  dart.setMethodSignature(convert._Base64EncoderSink, () => dart.global.Object.setPrototypeOf({
    add: T$.ObjectNTovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Base64EncoderSink))));
  dart.setLibraryUri(convert._Base64EncoderSink, I[41]);
  convert._AsciiBase64EncoderSink = class _AsciiBase64EncoderSink extends convert._Base64EncoderSink {
    static ['_#new#tearOff'](_sink, urlSafe) {
      if (_sink == null) dart.nullFailed(I[105], 441, 32, "_sink");
      if (urlSafe == null) dart.nullFailed(I[105], 441, 44, "urlSafe");
      return new convert._AsciiBase64EncoderSink.new(_sink, urlSafe);
    }
    [_add$0](source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[105], 444, 23, "source");
      if (start == null) dart.nullFailed(I[105], 444, 35, "start");
      if (end == null) dart.nullFailed(I[105], 444, 46, "end");
      if (isLast == null) dart.nullFailed(I[105], 444, 56, "isLast");
      let buffer = this[_encoder$].encode(source, start, end, isLast);
      if (buffer != null) {
        let string = core.String.fromCharCodes(buffer);
        this[_sink$0].add(string);
      }
      if (dart.test(isLast)) {
        this[_sink$0].close();
      }
    }
  };
  (convert._AsciiBase64EncoderSink.new = function(_sink, urlSafe) {
    if (_sink == null) dart.nullFailed(I[105], 441, 32, "_sink");
    if (urlSafe == null) dart.nullFailed(I[105], 441, 44, "urlSafe");
    this[_sink$0] = _sink;
    this[_encoder$] = new convert._BufferCachingBase64Encoder.new(urlSafe);
    dart.global.Object.getPrototypeOf(convert._AsciiBase64EncoderSink).new.call(this);
    ;
  }).prototype = convert._AsciiBase64EncoderSink.prototype;
  dart.addRtiResources(convert._AsciiBase64EncoderSink, ["convert|_AsciiBase64EncoderSink"]);
  dart.setMethodSignature(convert._AsciiBase64EncoderSink, () => dart.global.Object.setPrototypeOf({[_add$0]: T$2.ListOfintAndintAndint__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert._AsciiBase64EncoderSink))));
  dart.setLibraryUri(convert._AsciiBase64EncoderSink, I[41]);
  dart.setFieldSignature(convert._AsciiBase64EncoderSink, () => dart.global.Object.setPrototypeOf({
    [_sink$0]: {type: T$2.SinkOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_encoder$]: {type: T$2._Base64Encoder(), isConst: false, isFinal: true, libraryUri: I[41]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._AsciiBase64EncoderSink))));
  convert._Utf8Base64EncoderSink = class _Utf8Base64EncoderSink extends convert._Base64EncoderSink {
    static ['_#new#tearOff'](_sink, urlSafe) {
      if (_sink == null) dart.nullFailed(I[105], 460, 31, "_sink");
      if (urlSafe == null) dart.nullFailed(I[105], 460, 43, "urlSafe");
      return new convert._Utf8Base64EncoderSink.new(_sink, urlSafe);
    }
    [_add$0](source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[105], 463, 23, "source");
      if (start == null) dart.nullFailed(I[105], 463, 35, "start");
      if (end == null) dart.nullFailed(I[105], 463, 46, "end");
      if (isLast == null) dart.nullFailed(I[105], 463, 56, "isLast");
      let buffer = this[_encoder$].encode(source, start, end, isLast);
      if (buffer != null) {
        this[_sink$0].addSlice(buffer, 0, buffer[$length], isLast);
      }
    }
  };
  (convert._Utf8Base64EncoderSink.new = function(_sink, urlSafe) {
    if (_sink == null) dart.nullFailed(I[105], 460, 31, "_sink");
    if (urlSafe == null) dart.nullFailed(I[105], 460, 43, "urlSafe");
    this[_sink$0] = _sink;
    this[_encoder$] = new convert._Base64Encoder.new(urlSafe);
    dart.global.Object.getPrototypeOf(convert._Utf8Base64EncoderSink).new.call(this);
    ;
  }).prototype = convert._Utf8Base64EncoderSink.prototype;
  dart.addRtiResources(convert._Utf8Base64EncoderSink, ["convert|_Utf8Base64EncoderSink"]);
  dart.setMethodSignature(convert._Utf8Base64EncoderSink, () => dart.global.Object.setPrototypeOf({[_add$0]: T$2.ListOfintAndintAndint__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Utf8Base64EncoderSink))));
  dart.setLibraryUri(convert._Utf8Base64EncoderSink, I[41]);
  dart.setFieldSignature(convert._Utf8Base64EncoderSink, () => dart.global.Object.setPrototypeOf({
    [_sink$0]: {type: T$2.ByteConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_encoder$]: {type: T$2._Base64Encoder(), isConst: false, isFinal: true, libraryUri: I[41]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._Utf8Base64EncoderSink))));
  convert.Base64Decoder = class Base64Decoder extends G.ConverterOfString$ListOfint() {
    static ['_#new#tearOff']() {
      return new convert.Base64Decoder.new();
    }
    convert(input, start = 0, end = null) {
      T$.String()[_as](input);
      if (input == null) dart.nullFailed(I[105], 505, 28, "input");
      if (start == null) dart.nullFailed(I[105], 505, 40, "start");
      end = core.RangeError.checkValidRange(start, end, input.length);
      if (start == end) return _native_typed_data.NativeUint8List.new(0);
      let decoder = new convert._Base64Decoder.new();
      let buffer = dart.nullCheck(decoder.decode(input, start, end));
      decoder.close(input, end);
      return buffer;
    }
    startChunkedConversion(sink) {
      T$2.SinkOfListOfint()[_as](sink);
      if (sink == null) dart.nullFailed(I[105], 514, 63, "sink");
      return new convert._Base64DecoderSink.new(sink);
    }
  };
  (convert.Base64Decoder.new = function() {
    this.$ti = this.$ti || T$2.Base64Decoder();
    dart.global.Object.getPrototypeOf(convert.Base64Decoder).new.call(this);
    ;
  }).prototype = convert.Base64Decoder.prototype;
  dart.addRtiResources(convert.Base64Decoder, ["convert|Base64Decoder"]);
  dart.setMethodSignature(convert.Base64Decoder, () => dart.global.Object.setPrototypeOf({
    convert: T$2.ObjectNAndintAndintNToUint8List(),
    startChunkedConversion: T$2.ObjectNToStringConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.Base64Decoder))));
  dart.setLibraryUri(convert.Base64Decoder, I[41]);
  convert._Base64Decoder = class _Base64Decoder extends core.Object {
    static _encodeCharacterState(count, bits) {
      if (count == null) dart.nullFailed(I[105], 582, 40, "count");
      if (bits == null) dart.nullFailed(I[105], 582, 51, "bits");
      if (!(count === (dart.notNull(count) & 3) >>> 0)) dart.assertFailed(null, I[105], 583, 12, "count == (count & _countMask)");
      return (bits[$leftShift](2) | dart.notNull(count)) >>> 0;
    }
    static _stateCount(state) {
      if (state == null) dart.nullFailed(I[105], 588, 30, "state");
      if (!(dart.notNull(state) >= 0)) dart.assertFailed(null, I[105], 589, 12, "state >= 0");
      return (dart.notNull(state) & 3) >>> 0;
    }
    static _stateBits(state) {
      if (state == null) dart.nullFailed(I[105], 594, 29, "state");
      if (!(dart.notNull(state) >= 0)) dart.assertFailed(null, I[105], 595, 12, "state >= 0");
      return state[$rightShift](2);
    }
    static _encodePaddingState(expectedPadding) {
      if (expectedPadding == null) dart.nullFailed(I[105], 600, 38, "expectedPadding");
      if (!(dart.notNull(expectedPadding) >= 0)) dart.assertFailed(null, I[105], 601, 12, "expectedPadding >= 0");
      if (!(dart.notNull(expectedPadding) <= 5)) dart.assertFailed(null, I[105], 602, 12, "expectedPadding <= 5");
      return -dart.notNull(expectedPadding) - 1;
    }
    static _statePadding(state) {
      if (state == null) dart.nullFailed(I[105], 607, 32, "state");
      if (!(dart.notNull(state) < 0)) dart.assertFailed(null, I[105], 608, 12, "state < 0");
      return -dart.notNull(state) - 1;
    }
    static _hasSeenPadding(state) {
      if (state == null) dart.nullFailed(I[105], 612, 35, "state");
      return dart.notNull(state) < 0;
    }
    decode(input, start, end) {
      if (input == null) dart.nullFailed(I[105], 619, 28, "input");
      if (start == null) dart.nullFailed(I[105], 619, 39, "start");
      if (end == null) dart.nullFailed(I[105], 619, 50, "end");
      if (!(0 <= dart.notNull(start))) dart.assertFailed(null, I[105], 620, 12, "0 <= start");
      if (!(dart.notNull(start) <= dart.notNull(end))) dart.assertFailed(null, I[105], 621, 12, "start <= end");
      if (!(dart.notNull(end) <= input.length)) dart.assertFailed(null, I[105], 622, 12, "end <= input.length");
      if (dart.test(convert._Base64Decoder._hasSeenPadding(this[_state$]))) {
        this[_state$] = convert._Base64Decoder._checkPadding(input, start, end, this[_state$]);
        return null;
      }
      if (start == end) return _native_typed_data.NativeUint8List.new(0);
      let buffer = convert._Base64Decoder._allocateBuffer(input, start, end, this[_state$]);
      this[_state$] = convert._Base64Decoder.decodeChunk(input, start, end, buffer, 0, this[_state$]);
      return buffer;
    }
    close(input, end) {
      if (dart.notNull(this[_state$]) < dart.notNull(convert._Base64Decoder._encodePaddingState(0))) {
        dart.throw(new core.FormatException.new("Missing padding character", input, end));
      }
      if (dart.notNull(this[_state$]) > 0) {
        dart.throw(new core.FormatException.new("Invalid length, must be multiple of four", input, end));
      }
      this[_state$] = convert._Base64Decoder._encodePaddingState(0);
    }
    static decodeChunk(input, start, end, output, outIndex, state) {
      let t$36151, t$36151$, t$36151$0, t$36151$1, t$36151$2, t$36151$3;
      if (input == null) dart.nullFailed(I[105], 650, 33, "input");
      if (start == null) dart.nullFailed(I[105], 650, 44, "start");
      if (end == null) dart.nullFailed(I[105], 650, 55, "end");
      if (output == null) dart.nullFailed(I[105], 650, 70, "output");
      if (outIndex == null) dart.nullFailed(I[105], 651, 11, "outIndex");
      if (state == null) dart.nullFailed(I[105], 651, 25, "state");
      if (!!dart.test(convert._Base64Decoder._hasSeenPadding(state))) dart.assertFailed(null, I[105], 652, 12, "!_hasSeenPadding(state)");
      let bits = convert._Base64Decoder._stateBits(state);
      let count = convert._Base64Decoder._stateCount(state);
      let charOr = 0;
      let inverseAlphabet = convert._Base64Decoder._inverseAlphabet;
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let char = input[$codeUnitAt](i);
        charOr = (charOr | char) >>> 0;
        let code = inverseAlphabet[$_get]((char & 127) >>> 0);
        if (dart.notNull(code) >= 0) {
          bits = (bits[$leftShift](6) | dart.notNull(code)) & 16777215;
          count = dart.notNull(count) + 1 & 3;
          if (count === 0) {
            if (!(dart.notNull(outIndex) + 3 <= dart.notNull(output[$length]))) dart.assertFailed(null, I[105], 674, 18, "outIndex + 3 <= output.length");
            output[$_set]((t$36151 = outIndex, outIndex = dart.notNull(t$36151) + 1, t$36151), (bits[$rightShift](16) & 255) >>> 0);
            output[$_set]((t$36151$ = outIndex, outIndex = dart.notNull(t$36151$) + 1, t$36151$), (bits[$rightShift](8) & 255) >>> 0);
            output[$_set]((t$36151$0 = outIndex, outIndex = dart.notNull(t$36151$0) + 1, t$36151$0), (dart.notNull(bits) & 255) >>> 0);
            bits = 0;
          }
          continue;
        } else if (code === -1 && dart.notNull(count) > 1) {
          if (charOr < 0 || charOr > 127) break;
          if (count === 3) {
            if ((dart.notNull(bits) & 3) !== 0) {
              dart.throw(new core.FormatException.new("Invalid encoding before padding", input, i));
            }
            output[$_set]((t$36151$1 = outIndex, outIndex = dart.notNull(t$36151$1) + 1, t$36151$1), bits[$rightShift](10));
            output[$_set]((t$36151$2 = outIndex, outIndex = dart.notNull(t$36151$2) + 1, t$36151$2), bits[$rightShift](2));
          } else {
            if ((dart.notNull(bits) & 15) !== 0) {
              dart.throw(new core.FormatException.new("Invalid encoding before padding", input, i));
            }
            output[$_set]((t$36151$3 = outIndex, outIndex = dart.notNull(t$36151$3) + 1, t$36151$3), bits[$rightShift](4));
          }
          let expectedPadding = (3 - dart.notNull(count)) * 3;
          if (char === 37) expectedPadding = expectedPadding + 2;
          state = convert._Base64Decoder._encodePaddingState(expectedPadding);
          return convert._Base64Decoder._checkPadding(input, dart.notNull(i) + 1, end, state);
        }
        dart.throw(new core.FormatException.new("Invalid character", input, i));
      }
      if (charOr >= 0 && charOr <= 127) {
        return convert._Base64Decoder._encodeCharacterState(count, bits);
      }
      let i = null;
      for (let t$36151$4 = i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let char = input[$codeUnitAt](i);
        if (char < 0 || char > 127) break;
      }
      dart.throw(new core.FormatException.new("Invalid character", input, i));
    }
    static _allocateBuffer(input, start, end, state) {
      if (input == null) dart.nullFailed(I[105], 725, 14, "input");
      if (start == null) dart.nullFailed(I[105], 725, 25, "start");
      if (end == null) dart.nullFailed(I[105], 725, 36, "end");
      if (state == null) dart.nullFailed(I[105], 725, 45, "state");
      if (!(dart.notNull(state) >= 0)) dart.assertFailed(null, I[105], 726, 12, "state >= 0");
      let paddingStart = convert._Base64Decoder._trimPaddingChars(input, start, end);
      let length = dart.notNull(convert._Base64Decoder._stateCount(state)) + (dart.notNull(paddingStart) - dart.notNull(start));
      let bufferLength = length[$rightShift](2) * 3;
      let remainderLength = length & 3;
      if (remainderLength !== 0 && dart.notNull(paddingStart) < dart.notNull(end)) {
        bufferLength = bufferLength + (remainderLength - 1);
      }
      if (bufferLength > 0) return _native_typed_data.NativeUint8List.new(bufferLength);
      return convert._Base64Decoder._emptyBuffer;
    }
    static _trimPaddingChars(input, start, end) {
      if (input == null) dart.nullFailed(I[105], 754, 39, "input");
      if (start == null) dart.nullFailed(I[105], 754, 50, "start");
      if (end == null) dart.nullFailed(I[105], 754, 61, "end");
      let padding = 0;
      let index = end;
      let newEnd = end;
      while (dart.notNull(index) > dart.notNull(start) && padding < 2) {
        index = dart.notNull(index) - 1;
        let char = input[$codeUnitAt](index);
        if (char === 61) {
          padding = padding + 1;
          newEnd = index;
          continue;
        }
        if ((char | 32) >>> 0 === 100) {
          if (index == start) break;
          index = dart.notNull(index) - 1;
          char = input[$codeUnitAt](index);
        }
        if (char === 51) {
          if (index == start) break;
          index = dart.notNull(index) - 1;
          char = input[$codeUnitAt](index);
        }
        if (char === 37) {
          padding = padding + 1;
          newEnd = index;
          continue;
        }
        break;
      }
      return newEnd;
    }
    static _checkPadding(input, start, end, state) {
      if (input == null) dart.nullFailed(I[105], 806, 35, "input");
      if (start == null) dart.nullFailed(I[105], 806, 46, "start");
      if (end == null) dart.nullFailed(I[105], 806, 57, "end");
      if (state == null) dart.nullFailed(I[105], 806, 66, "state");
      if (!dart.test(convert._Base64Decoder._hasSeenPadding(state))) dart.assertFailed(null, I[105], 807, 12, "_hasSeenPadding(state)");
      if (start == end) return state;
      let expectedPadding = convert._Base64Decoder._statePadding(state);
      if (!(dart.notNull(expectedPadding) >= 0)) dart.assertFailed(null, I[105], 810, 12, "expectedPadding >= 0");
      if (!(dart.notNull(expectedPadding) < 6)) dart.assertFailed(null, I[105], 811, 12, "expectedPadding < 6");
      while (dart.notNull(expectedPadding) > 0) {
        let char = input[$codeUnitAt](start);
        if (expectedPadding === 3) {
          if (char === 61) {
            expectedPadding = dart.notNull(expectedPadding) - 3;
            start = dart.notNull(start) + 1;
            break;
          }
          if (char === 37) {
            expectedPadding = dart.notNull(expectedPadding) - 1;
            start = dart.notNull(start) + 1;
            if (start == end) break;
            char = input[$codeUnitAt](start);
          } else {
            break;
          }
        }
        let expectedPartialPadding = expectedPadding;
        if (dart.notNull(expectedPartialPadding) > 3) expectedPartialPadding = dart.notNull(expectedPartialPadding) - 3;
        if (expectedPartialPadding === 2) {
          if (char !== 51) break;
          start = dart.notNull(start) + 1;
          expectedPadding = dart.notNull(expectedPadding) - 1;
          if (start == end) break;
          char = input[$codeUnitAt](start);
        }
        if ((char | 32) >>> 0 !== 100) break;
        start = dart.notNull(start) + 1;
        expectedPadding = dart.notNull(expectedPadding) - 1;
        if (start == end) break;
      }
      if (start != end) {
        dart.throw(new core.FormatException.new("Invalid padding character", input, start));
      }
      return convert._Base64Decoder._encodePaddingState(expectedPadding);
    }
    static ['_#new#tearOff']() {
      return new convert._Base64Decoder.new();
    }
  };
  (convert._Base64Decoder.new = function() {
    this[_state$] = 0;
    ;
  }).prototype = convert._Base64Decoder.prototype;
  dart.addRtiResources(convert._Base64Decoder, ["convert|_Base64Decoder"]);
  dart.setMethodSignature(convert._Base64Decoder, () => dart.global.Object.setPrototypeOf({
    decode: T$2.StringAndintAndintToUint8ListN(),
    close: T$2.StringNAndintNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Base64Decoder))));
  dart.setStaticMethodSignature(convert._Base64Decoder, () => ['_encodeCharacterState', '_stateCount', '_stateBits', '_encodePaddingState', '_statePadding', '_hasSeenPadding', 'decodeChunk', '_allocateBuffer', '_trimPaddingChars', '_checkPadding']);
  dart.setLibraryUri(convert._Base64Decoder, I[41]);
  dart.setFieldSignature(convert._Base64Decoder, () => dart.global.Object.setPrototypeOf({[_state$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._Base64Decoder))));
  dart.setStaticFieldSignature(convert._Base64Decoder, () => ['_valueShift', '_countMask', '_invalid', '_padding', '___', '_p', '_inverseAlphabet', '_char_percent', '_char_3', '_char_d', '_emptyBuffer']);
  dart.defineLazy(convert._Base64Decoder, {
    /*convert._Base64Decoder._valueShift*/get _valueShift() {
      return 2;
    },
    /*convert._Base64Decoder._countMask*/get _countMask() {
      return 3;
    },
    /*convert._Base64Decoder._invalid*/get _invalid() {
      return -2;
    },
    /*convert._Base64Decoder._padding*/get _padding() {
      return -1;
    },
    /*convert._Base64Decoder.___*/get ___() {
      return -2;
    },
    /*convert._Base64Decoder._p*/get _p() {
      return -1;
    },
    /*convert._Base64Decoder._inverseAlphabet*/get _inverseAlphabet() {
      return _native_typed_data.NativeInt8List.fromList(G.JSArrayOfint().of([-2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -2, -2, -2, -2, -2, 62, -2, 62, -2, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -2, -2, -2, -1, -2, -2, -2, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -2, -2, -2, -2, 63, -2, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -2, -2, -2, -2, -2]));
    },
    /*convert._Base64Decoder._char_percent*/get _char_percent() {
      return 37;
    },
    /*convert._Base64Decoder._char_3*/get _char_3() {
      return 51;
    },
    /*convert._Base64Decoder._char_d*/get _char_d() {
      return 100;
    },
    /*convert._Base64Decoder._emptyBuffer*/get _emptyBuffer() {
      return _native_typed_data.NativeUint8List.new(0);
    },
    set _emptyBuffer(value) {
      if (value == null) dart.nullFailed(I[105], 719, 20, "_emptyBuffer");
    }
  }, false);
  var _decoder = dart.privateName(convert, "_decoder");
  convert._Base64DecoderSink = class _Base64DecoderSink extends convert.StringConversionSink {
    static ['_#new#tearOff'](_sink) {
      if (_sink == null) dart.nullFailed(I[105], 858, 27, "_sink");
      return new convert._Base64DecoderSink.new(_sink);
    }
    add(string) {
      T$.String()[_as](string);
      if (string == null) dart.nullFailed(I[105], 860, 19, "string");
      if (string[$isEmpty]) return;
      let buffer = this[_decoder].decode(string, 0, string.length);
      if (buffer != null) this[_sink$0].add(buffer);
    }
    close() {
      this[_decoder].close(null, null);
      this[_sink$0].close();
    }
    addSlice(string, start, end, isLast) {
      if (string == null) dart.nullFailed(I[105], 871, 24, "string");
      if (start == null) dart.nullFailed(I[105], 871, 36, "start");
      if (end == null) dart.nullFailed(I[105], 871, 47, "end");
      if (isLast == null) dart.nullFailed(I[105], 871, 57, "isLast");
      core.RangeError.checkValidRange(start, end, string.length);
      if (start == end) return;
      let buffer = this[_decoder].decode(string, start, end);
      if (buffer != null) this[_sink$0].add(buffer);
      if (dart.test(isLast)) {
        this[_decoder].close(string, end);
        this[_sink$0].close();
      }
    }
  };
  (convert._Base64DecoderSink.new = function(_sink) {
    if (_sink == null) dart.nullFailed(I[105], 858, 27, "_sink");
    this[_decoder] = new convert._Base64Decoder.new();
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._Base64DecoderSink).new.call(this);
    ;
  }).prototype = convert._Base64DecoderSink.prototype;
  dart.addRtiResources(convert._Base64DecoderSink, ["convert|_Base64DecoderSink"]);
  dart.setMethodSignature(convert._Base64DecoderSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    addSlice: T$2.StringAndintAndint__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Base64DecoderSink))));
  dart.setLibraryUri(convert._Base64DecoderSink, I[41]);
  dart.setFieldSignature(convert._Base64DecoderSink, () => dart.global.Object.setPrototypeOf({
    [_sink$0]: {type: T$2.SinkOfListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_decoder]: {type: T$2._Base64Decoder(), isConst: false, isFinal: true, libraryUri: I[41]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._Base64DecoderSink))));
  convert._ByteAdapterSink = class _ByteAdapterSink extends convert.ByteConversionSink {
    static ['_#new#tearOff'](_sink) {
      if (_sink == null) dart.nullFailed(I[104], 46, 25, "_sink");
      return new convert._ByteAdapterSink.new(_sink);
    }
    add(chunk) {
      T$.ListOfint()[_as](chunk);
      if (chunk == null) dart.nullFailed(I[104], 48, 22, "chunk");
      this[_sink$0].add(chunk);
    }
    close() {
      this[_sink$0].close();
    }
  };
  (convert._ByteAdapterSink.new = function(_sink) {
    if (_sink == null) dart.nullFailed(I[104], 46, 25, "_sink");
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._ByteAdapterSink).new.call(this);
    ;
  }).prototype = convert._ByteAdapterSink.prototype;
  dart.addRtiResources(convert._ByteAdapterSink, ["convert|_ByteAdapterSink"]);
  dart.setMethodSignature(convert._ByteAdapterSink, () => dart.global.Object.setPrototypeOf({
    add: T$.ObjectNTovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._ByteAdapterSink))));
  dart.setLibraryUri(convert._ByteAdapterSink, I[41]);
  dart.setFieldSignature(convert._ByteAdapterSink, () => dart.global.Object.setPrototypeOf({[_sink$0]: {type: T$2.SinkOfListOfint(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._ByteAdapterSink))));
  var _buffer$ = dart.privateName(convert, "_buffer");
  var _bufferIndex = dart.privateName(convert, "_bufferIndex");
  var _callback$ = dart.privateName(convert, "_callback");
  convert._ByteCallbackSink = class _ByteCallbackSink extends convert.ByteConversionSink {
    static ['_#new#tearOff'](callback) {
      if (callback == null) dart.nullFailed(I[104], 68, 26, "callback");
      return new convert._ByteCallbackSink.new(callback);
    }
    add(chunk) {
      T$0.IterableOfint()[_as](chunk);
      if (chunk == null) dart.nullFailed(I[104], 71, 26, "chunk");
      let freeCount = dart.notNull(this[_buffer$][$length]) - dart.notNull(this[_bufferIndex]);
      if (dart.notNull(chunk[$length]) > freeCount) {
        let oldLength = this[_buffer$][$length];
        let newLength = dart.notNull(convert._ByteCallbackSink._roundToPowerOf2(dart.notNull(chunk[$length]) + dart.notNull(oldLength))) * 2;
        let grown = _native_typed_data.NativeUint8List.new(newLength);
        grown[$setRange](0, this[_buffer$][$length], this[_buffer$]);
        this[_buffer$] = grown;
      }
      this[_buffer$][$setRange](this[_bufferIndex], dart.notNull(this[_bufferIndex]) + dart.notNull(chunk[$length]), chunk);
      this[_bufferIndex] = dart.notNull(this[_bufferIndex]) + dart.notNull(chunk[$length]);
    }
    static _roundToPowerOf2(v) {
      if (v == null) dart.nullFailed(I[104], 85, 35, "v");
      if (!(dart.notNull(v) > 0)) dart.assertFailed(null, I[104], 86, 12, "v > 0");
      v = dart.notNull(v) - 1;
      v = (dart.notNull(v) | v[$rightShift](1)) >>> 0;
      v = (dart.notNull(v) | v[$rightShift](2)) >>> 0;
      v = (dart.notNull(v) | v[$rightShift](4)) >>> 0;
      v = (dart.notNull(v) | v[$rightShift](8)) >>> 0;
      v = (dart.notNull(v) | v[$rightShift](16)) >>> 0;
      v = dart.notNull(v) + 1;
      return v;
    }
    close() {
      let t$36152;
      t$36152 = this[_buffer$][$sublist](0, this[_bufferIndex]);
      this[_callback$](t$36152);
    }
  };
  (convert._ByteCallbackSink.new = function(callback) {
    if (callback == null) dart.nullFailed(I[104], 68, 26, "callback");
    this[_buffer$] = _native_typed_data.NativeUint8List.new(1024);
    this[_bufferIndex] = 0;
    this[_callback$] = callback;
    dart.global.Object.getPrototypeOf(convert._ByteCallbackSink).new.call(this);
    ;
  }).prototype = convert._ByteCallbackSink.prototype;
  dart.addRtiResources(convert._ByteCallbackSink, ["convert|_ByteCallbackSink"]);
  dart.setMethodSignature(convert._ByteCallbackSink, () => dart.global.Object.setPrototypeOf({
    add: T$.ObjectNTovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._ByteCallbackSink))));
  dart.setStaticMethodSignature(convert._ByteCallbackSink, () => ['_roundToPowerOf2']);
  dart.setLibraryUri(convert._ByteCallbackSink, I[41]);
  dart.setFieldSignature(convert._ByteCallbackSink, () => dart.global.Object.setPrototypeOf({
    [_callback$]: {type: T$.ListOfintTovoid(), isConst: false, isFinal: true},
    [_buffer$]: {type: T$.ListOfint(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_bufferIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._ByteCallbackSink))));
  dart.setStaticFieldSignature(convert._ByteCallbackSink, () => ['_INITIAL_BUFFER_SIZE']);
  dart.defineLazy(convert._ByteCallbackSink, {
    /*convert._ByteCallbackSink._INITIAL_BUFFER_SIZE*/get _INITIAL_BUFFER_SIZE() {
      return 1024;
    }
  }, false);
  convert.ChunkedConversionSink$ = dart.generic(T => {
    var __t$ChunkedConversionSinkOfT = () => (__t$ChunkedConversionSinkOfT = dart.constFn(T[_eval]("convert|ChunkedConversionSink<0>")))();
    class ChunkedConversionSink extends core.Object {
      static ['_#withCallback#tearOff'](T, callback) {
        if (callback == null) dart.nullFailed(I[106], 16, 12, "callback");
        return new (convert._SimpleCallbackSink$(T)).new(callback);
      }
    }
    (ChunkedConversionSink.new = function() {
      this.$ti = this.$ti || __t$ChunkedConversionSinkOfT();
      ;
    }).prototype = ChunkedConversionSink.prototype;
    dart.addRtiResources(ChunkedConversionSink, ["convert|ChunkedConversionSink", "core|Sink"]);
    dart.setStaticMethodSignature(ChunkedConversionSink, () => ['withCallback']);
    dart.setLibraryUri(ChunkedConversionSink, I[41]);
    return ChunkedConversionSink;
  });
  convert.ChunkedConversionSink = convert.ChunkedConversionSink$();
  var _accumulated = dart.privateName(convert, "_accumulated");
  convert._SimpleCallbackSink$ = dart.generic(T => {
    var __t$_SimpleCallbackSinkOfT = () => (__t$_SimpleCallbackSinkOfT = dart.constFn(T[_eval]("convert|_SimpleCallbackSink<0>")))();
    var __t$ListOfTTovoid = () => (__t$ListOfTTovoid = dart.constFn(T[_eval]("~(core|List<0>)")))();
    var __t$ListOfT = () => (__t$ListOfT = dart.constFn(T[_eval]("core|List<0>")))();
    var __t$JSArrayOfT = () => (__t$JSArrayOfT = dart.constFn(_interceptors.JSArray$(T)))();
    class _SimpleCallbackSink extends core.Object {
      static ['_#new#tearOff'](T, _callback) {
        if (_callback == null) dart.nullFailed(I[106], 38, 28, "_callback");
        return new (convert._SimpleCallbackSink$(T)).new(_callback);
      }
      add(chunk) {
        T[_as](chunk);
        this[_accumulated][$add](chunk);
      }
      close() {
        let t$36152;
        t$36152 = this[_accumulated];
        this[_callback$](t$36152);
      }
    }
    (_SimpleCallbackSink.new = function(_callback) {
      if (_callback == null) dart.nullFailed(I[106], 38, 28, "_callback");
      this[_accumulated] = __t$JSArrayOfT().of([]);
      this[_callback$] = _callback;
      this.$ti = this.$ti || __t$_SimpleCallbackSinkOfT();
      ;
    }).prototype = _SimpleCallbackSink.prototype;
    dart.addRtiResources(_SimpleCallbackSink, ["convert|_SimpleCallbackSink", "convert|ChunkedConversionSink", "core|Sink"]);
    dart.setMethodSignature(_SimpleCallbackSink, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      close: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_SimpleCallbackSink))));
    dart.setLibraryUri(_SimpleCallbackSink, I[41]);
    dart.setFieldSignature(_SimpleCallbackSink, () => dart.global.Object.setPrototypeOf({
      [_callback$]: {type: __t$ListOfTTovoid(), isConst: false, isFinal: true},
      [_accumulated]: {type: __t$ListOfT(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_SimpleCallbackSink))));
    return _SimpleCallbackSink;
  });
  convert._SimpleCallbackSink = convert._SimpleCallbackSink$();
  var _eventSink = dart.privateName(convert, "_eventSink");
  var _chunkedSink$ = dart.privateName(convert, "_chunkedSink");
  convert._ConverterStreamEventSink$ = dart.generic((S, T) => {
    var __t$_ConverterStreamEventSinkOfS$T = () => (__t$_ConverterStreamEventSinkOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("convert|_ConverterStreamEventSink<1,2>")))();
    var __t$SinkOfS = () => (__t$SinkOfS = dart.constFn(S[_eval]("core|Sink<0>")))();
    var __t$EventSinkOfT = () => (__t$EventSinkOfT = dart.constFn(T[_eval]("async|EventSink<0>")))();
    class _ConverterStreamEventSink extends core.Object {
      static ['_#new#tearOff'](S, T, converter, sink) {
        if (converter == null) dart.nullFailed(I[106], 64, 45, "converter");
        if (sink == null) dart.nullFailed(I[106], 64, 69, "sink");
        return new (convert._ConverterStreamEventSink$(S, T)).new(converter, sink);
      }
      add(o) {
        S[_as](o);
        this[_chunkedSink$].add(o);
      }
      addError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[106], 72, 24, "error");
        _internal.checkNotNullable(T$.Object(), error, "error");
        this[_eventSink].addError(error, stackTrace);
      }
      close() {
        this[_chunkedSink$].close();
      }
    }
    (_ConverterStreamEventSink.new = function(converter, sink) {
      if (converter == null) dart.nullFailed(I[106], 64, 45, "converter");
      if (sink == null) dart.nullFailed(I[106], 64, 69, "sink");
      this[_eventSink] = sink;
      this[_chunkedSink$] = converter.startChunkedConversion(sink);
      this.$ti = this.$ti || __t$_ConverterStreamEventSinkOfS$T();
      ;
    }).prototype = _ConverterStreamEventSink.prototype;
    dart.addRtiResources(_ConverterStreamEventSink, ["convert|_ConverterStreamEventSink", "async|EventSink", "core|Sink"]);
    dart.setMethodSignature(_ConverterStreamEventSink, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      addError: T$1.ObjectAndStackTraceNTovoid(),
      close: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_ConverterStreamEventSink))));
    dart.setLibraryUri(_ConverterStreamEventSink, I[41]);
    dart.setFieldSignature(_ConverterStreamEventSink, () => dart.global.Object.setPrototypeOf({
      [_eventSink]: {type: __t$EventSinkOfT(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_chunkedSink$]: {type: __t$SinkOfS(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_ConverterStreamEventSink))));
    return _ConverterStreamEventSink;
  });
  convert._ConverterStreamEventSink = convert._ConverterStreamEventSink$();
  var _first$0 = dart.privateName(convert, "_first");
  var _second$0 = dart.privateName(convert, "_second");
  convert._FusedCodec$ = dart.generic((S, M, T) => {
    var __t$_FusedCodecOfS$M$T = () => (__t$_FusedCodecOfS$M$T = dart.constFn(S[_eval]("@<0>")[_bind](M)[_bind](T)[_eval]("convert|_FusedCodec<1,2,3>")))();
    var __t$ConverterOfS$T = () => (__t$ConverterOfS$T = dart.constFn(S[_eval]("@<0>")[_bind](T)[_eval]("convert|Converter<1,2>")))();
    var __t$ConverterOfT$S = () => (__t$ConverterOfT$S = dart.constFn(T[_eval]("@<0>")[_bind](S)[_eval]("convert|Converter<1,2>")))();
    var __t$CodecOfS$M = () => (__t$CodecOfS$M = dart.constFn(S[_eval]("@<0>")[_bind](M)[_eval]("convert|Codec<1,2>")))();
    var __t$CodecOfM$T = () => (__t$CodecOfM$T = dart.constFn(M[_eval]("@<0>")[_bind](T)[_eval]("convert|Codec<1,2>")))();
    var __t$CodecOfS$T = () => (__t$CodecOfS$T = dart.constFn(convert.Codec$(S, T)))();
    class _FusedCodec extends __t$CodecOfS$T() {
      get encoder() {
        return this[_first$0].encoder.fuse(T, this[_second$0].encoder);
      }
      get decoder() {
        return this[_second$0].decoder.fuse(S, this[_first$0].decoder);
      }
      static ['_#new#tearOff'](S, M, T, _first, _second) {
        if (_first == null) dart.nullFailed(I[103], 89, 20, "_first");
        if (_second == null) dart.nullFailed(I[103], 89, 33, "_second");
        return new (convert._FusedCodec$(S, M, T)).new(_first, _second);
      }
    }
    (_FusedCodec.new = function(_first, _second) {
      if (_first == null) dart.nullFailed(I[103], 89, 20, "_first");
      if (_second == null) dart.nullFailed(I[103], 89, 33, "_second");
      this[_first$0] = _first;
      this[_second$0] = _second;
      this.$ti = this.$ti || __t$_FusedCodecOfS$M$T();
      dart.global.Object.getPrototypeOf(_FusedCodec).new.call(this);
      ;
    }).prototype = _FusedCodec.prototype;
    dart.addRtiResources(_FusedCodec, ["convert|_FusedCodec"]);
    dart.setGetterSignature(_FusedCodec, () => dart.global.Object.setPrototypeOf({
      encoder: __t$ConverterOfS$T(),
      decoder: __t$ConverterOfT$S()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_FusedCodec))));
    dart.setLibraryUri(_FusedCodec, I[41]);
    dart.setFieldSignature(_FusedCodec, () => dart.global.Object.setPrototypeOf({
      [_first$0]: {type: __t$CodecOfS$M(), isConst: false, isFinal: true, libraryUri: I[41]},
      [_second$0]: {type: __t$CodecOfM$T(), isConst: false, isFinal: true, libraryUri: I[41]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_FusedCodec))));
    return _FusedCodec;
  });
  convert._FusedCodec = convert._FusedCodec$();
  var _codec = dart.privateName(convert, "_codec");
  convert._InvertedCodec$ = dart.generic((T, S) => {
    var __t$_InvertedCodecOfT$S = () => (__t$_InvertedCodecOfT$S = dart.constFn(T[_eval]("@<0>")[_bind](S)[_eval]("convert|_InvertedCodec<1,2>")))();
    var __t$ConverterOfT$S = () => (__t$ConverterOfT$S = dart.constFn(T[_eval]("@<0>")[_bind](S)[_eval]("convert|Converter<1,2>")))();
    var __t$ConverterOfS$T = () => (__t$ConverterOfS$T = dart.constFn(T[_eval]("@<0>")[_bind](S)[_eval]("convert|Converter<2,1>")))();
    var __t$CodecOfS$T = () => (__t$CodecOfS$T = dart.constFn(T[_eval]("@<0>")[_bind](S)[_eval]("convert|Codec<2,1>")))();
    var __t$CodecOfT$S = () => (__t$CodecOfT$S = dart.constFn(convert.Codec$(T, S)))();
    class _InvertedCodec extends __t$CodecOfT$S() {
      static ['_#new#tearOff'](T, S, codec) {
        if (codec == null) dart.nullFailed(I[103], 95, 30, "codec");
        return new (convert._InvertedCodec$(T, S)).new(codec);
      }
      get encoder() {
        return this[_codec].decoder;
      }
      get decoder() {
        return this[_codec].encoder;
      }
      get inverted() {
        return this[_codec];
      }
    }
    (_InvertedCodec.new = function(codec) {
      if (codec == null) dart.nullFailed(I[103], 95, 30, "codec");
      this[_codec] = codec;
      this.$ti = this.$ti || __t$_InvertedCodecOfT$S();
      dart.global.Object.getPrototypeOf(_InvertedCodec).new.call(this);
      ;
    }).prototype = _InvertedCodec.prototype;
    dart.addRtiResources(_InvertedCodec, ["convert|_InvertedCodec"]);
    dart.setGetterSignature(_InvertedCodec, () => dart.global.Object.setPrototypeOf({
      encoder: __t$ConverterOfT$S(),
      decoder: __t$ConverterOfS$T()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_InvertedCodec))));
    dart.setLibraryUri(_InvertedCodec, I[41]);
    dart.setFieldSignature(_InvertedCodec, () => dart.global.Object.setPrototypeOf({[_codec]: {type: __t$CodecOfS$T(), isConst: false, isFinal: true, libraryUri: I[41]}}, dart.getFields(dart.global.Object.getPrototypeOf(_InvertedCodec))));
    return _InvertedCodec;
  });
  convert._InvertedCodec = convert._InvertedCodec$();
  convert._FusedConverter$ = dart.generic((S, M, T) => {
    var __t$_FusedConverterOfS$M$T = () => (__t$_FusedConverterOfS$M$T = dart.constFn(S[_eval]("@<0>")[_bind](M)[_bind](T)[_eval]("convert|_FusedConverter<1,2,3>")))();
    var __t$ConverterOfS$M = () => (__t$ConverterOfS$M = dart.constFn(S[_eval]("@<0>")[_bind](M)[_eval]("convert|Converter<1,2>")))();
    var __t$ConverterOfM$T = () => (__t$ConverterOfM$T = dart.constFn(M[_eval]("@<0>")[_bind](T)[_eval]("convert|Converter<1,2>")))();
    var __t$SinkOfT = () => (__t$SinkOfT = dart.constFn(T[_eval]("core|Sink<0>")))();
    var __t$ObjectNToT = () => (__t$ObjectNToT = dart.constFn(T[_eval]("0(core|Object?)")))();
    var __t$ConverterOfS$T = () => (__t$ConverterOfS$T = dart.constFn(convert.Converter$(S, T)))();
    class _FusedConverter extends __t$ConverterOfS$T() {
      static ['_#new#tearOff'](S, M, T, _first, _second) {
        if (_first == null) dart.nullFailed(I[40], 65, 24, "_first");
        if (_second == null) dart.nullFailed(I[40], 65, 37, "_second");
        return new (convert._FusedConverter$(S, M, T)).new(_first, _second);
      }
      convert(input) {
        S[_as](input);
        return this[_second$0].convert(this[_first$0].convert(input));
      }
      startChunkedConversion(sink) {
        __t$SinkOfT()[_as](sink);
        if (sink == null) dart.nullFailed(I[40], 69, 42, "sink");
        return this[_first$0].startChunkedConversion(this[_second$0].startChunkedConversion(sink));
      }
    }
    (_FusedConverter.new = function(_first, _second) {
      if (_first == null) dart.nullFailed(I[40], 65, 24, "_first");
      if (_second == null) dart.nullFailed(I[40], 65, 37, "_second");
      this[_first$0] = _first;
      this[_second$0] = _second;
      this.$ti = this.$ti || __t$_FusedConverterOfS$M$T();
      dart.global.Object.getPrototypeOf(_FusedConverter).new.call(this);
      ;
    }).prototype = _FusedConverter.prototype;
    dart.addRtiResources(_FusedConverter, ["convert|_FusedConverter"]);
    dart.setMethodSignature(_FusedConverter, () => dart.global.Object.setPrototypeOf({convert: __t$ObjectNToT()}, dart.getMethods(dart.global.Object.getPrototypeOf(_FusedConverter))));
    dart.setLibraryUri(_FusedConverter, I[41]);
    dart.setFieldSignature(_FusedConverter, () => dart.global.Object.setPrototypeOf({
      [_first$0]: {type: __t$ConverterOfS$M(), isConst: false, isFinal: true, libraryUri: I[41]},
      [_second$0]: {type: __t$ConverterOfM$T(), isConst: false, isFinal: true, libraryUri: I[41]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_FusedConverter))));
    return _FusedConverter;
  });
  convert._FusedConverter = convert._FusedConverter$();
  var _name$4 = dart.privateName(convert, "HtmlEscapeMode._name");
  var escapeLtGt$ = dart.privateName(convert, "HtmlEscapeMode.escapeLtGt");
  var escapeQuot$ = dart.privateName(convert, "HtmlEscapeMode.escapeQuot");
  var escapeApos$ = dart.privateName(convert, "HtmlEscapeMode.escapeApos");
  var escapeSlash$ = dart.privateName(convert, "HtmlEscapeMode.escapeSlash");
  var _name$5 = dart.privateName(convert, "_name");
  convert.HtmlEscapeMode = class HtmlEscapeMode extends core.Object {
    get [_name$5]() {
      return this[_name$4];
    }
    set [_name$5](value) {
      super[_name$5] = value;
    }
    get escapeLtGt() {
      return this[escapeLtGt$];
    }
    set escapeLtGt(value) {
      super.escapeLtGt = value;
    }
    get escapeQuot() {
      return this[escapeQuot$];
    }
    set escapeQuot(value) {
      super.escapeQuot = value;
    }
    get escapeApos() {
      return this[escapeApos$];
    }
    set escapeApos(value) {
      super.escapeApos = value;
    }
    get escapeSlash() {
      return this[escapeSlash$];
    }
    set escapeSlash(value) {
      super.escapeSlash = value;
    }
    static ['_#_#tearOff'](_name, escapeLtGt, escapeQuot, escapeApos, escapeSlash) {
      if (_name == null) dart.nullFailed(I[107], 134, 31, "_name");
      if (escapeLtGt == null) dart.nullFailed(I[107], 134, 43, "escapeLtGt");
      if (escapeQuot == null) dart.nullFailed(I[107], 134, 60, "escapeQuot");
      if (escapeApos == null) dart.nullFailed(I[107], 135, 12, "escapeApos");
      if (escapeSlash == null) dart.nullFailed(I[107], 135, 29, "escapeSlash");
      return new convert.HtmlEscapeMode.__(_name, escapeLtGt, escapeQuot, escapeApos, escapeSlash);
    }
    static ['_#new#tearOff'](opts) {
      let name = opts && 'name' in opts ? opts.name : "custom";
      if (name == null) dart.nullFailed(I[107], 143, 15, "name");
      let escapeLtGt = opts && 'escapeLtGt' in opts ? opts.escapeLtGt : false;
      if (escapeLtGt == null) dart.nullFailed(I[107], 144, 12, "escapeLtGt");
      let escapeQuot = opts && 'escapeQuot' in opts ? opts.escapeQuot : false;
      if (escapeQuot == null) dart.nullFailed(I[107], 145, 12, "escapeQuot");
      let escapeApos = opts && 'escapeApos' in opts ? opts.escapeApos : false;
      if (escapeApos == null) dart.nullFailed(I[107], 146, 12, "escapeApos");
      let escapeSlash = opts && 'escapeSlash' in opts ? opts.escapeSlash : false;
      if (escapeSlash == null) dart.nullFailed(I[107], 147, 12, "escapeSlash");
      return new convert.HtmlEscapeMode.new({name: name, escapeLtGt: escapeLtGt, escapeQuot: escapeQuot, escapeApos: escapeApos, escapeSlash: escapeSlash});
    }
    toString() {
      return this[_name$5];
    }
  };
  (convert.HtmlEscapeMode.__ = function(_name, escapeLtGt, escapeQuot, escapeApos, escapeSlash) {
    if (_name == null) dart.nullFailed(I[107], 134, 31, "_name");
    if (escapeLtGt == null) dart.nullFailed(I[107], 134, 43, "escapeLtGt");
    if (escapeQuot == null) dart.nullFailed(I[107], 134, 60, "escapeQuot");
    if (escapeApos == null) dart.nullFailed(I[107], 135, 12, "escapeApos");
    if (escapeSlash == null) dart.nullFailed(I[107], 135, 29, "escapeSlash");
    this[_name$4] = _name;
    this[escapeLtGt$] = escapeLtGt;
    this[escapeQuot$] = escapeQuot;
    this[escapeApos$] = escapeApos;
    this[escapeSlash$] = escapeSlash;
    ;
  }).prototype = convert.HtmlEscapeMode.prototype;
  (convert.HtmlEscapeMode.new = function(opts) {
    let name = opts && 'name' in opts ? opts.name : "custom";
    if (name == null) dart.nullFailed(I[107], 143, 15, "name");
    let escapeLtGt = opts && 'escapeLtGt' in opts ? opts.escapeLtGt : false;
    if (escapeLtGt == null) dart.nullFailed(I[107], 144, 12, "escapeLtGt");
    let escapeQuot = opts && 'escapeQuot' in opts ? opts.escapeQuot : false;
    if (escapeQuot == null) dart.nullFailed(I[107], 145, 12, "escapeQuot");
    let escapeApos = opts && 'escapeApos' in opts ? opts.escapeApos : false;
    if (escapeApos == null) dart.nullFailed(I[107], 146, 12, "escapeApos");
    let escapeSlash = opts && 'escapeSlash' in opts ? opts.escapeSlash : false;
    if (escapeSlash == null) dart.nullFailed(I[107], 147, 12, "escapeSlash");
    this[escapeLtGt$] = escapeLtGt;
    this[escapeQuot$] = escapeQuot;
    this[escapeApos$] = escapeApos;
    this[escapeSlash$] = escapeSlash;
    this[_name$4] = name;
    ;
  }).prototype = convert.HtmlEscapeMode.prototype;
  dart.addRtiResources(convert.HtmlEscapeMode, ["convert|HtmlEscapeMode"]);
  dart.setLibraryUri(convert.HtmlEscapeMode, I[41]);
  dart.setFieldSignature(convert.HtmlEscapeMode, () => dart.global.Object.setPrototypeOf({
    [_name$5]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    escapeLtGt: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    escapeQuot: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    escapeApos: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    escapeSlash: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert.HtmlEscapeMode))));
  dart.setStaticFieldSignature(convert.HtmlEscapeMode, () => ['unknown', 'attribute', 'sqAttribute', 'element']);
  dart.defineExtensionMethods(convert.HtmlEscapeMode, ['toString']);
  dart.defineLazy(convert.HtmlEscapeMode, {
    /*convert.HtmlEscapeMode.unknown*/get unknown() {
      return C[135] || CT.C135;
    },
    /*convert.HtmlEscapeMode.attribute*/get attribute() {
      return C[136] || CT.C136;
    },
    /*convert.HtmlEscapeMode.sqAttribute*/get sqAttribute() {
      return C[137] || CT.C137;
    },
    /*convert.HtmlEscapeMode.element*/get element() {
      return C[138] || CT.C138;
    }
  }, false);
  var mode$ = dart.privateName(convert, "HtmlEscape.mode");
  var _convert = dart.privateName(convert, "_convert");
  convert.HtmlEscape = class HtmlEscape extends G.ConverterOfString$String() {
    get mode() {
      return this[mode$];
    }
    set mode(value) {
      super.mode = value;
    }
    static ['_#new#tearOff'](mode = C[135] || CT.C135) {
      if (mode == null) dart.nullFailed(I[107], 206, 26, "mode");
      return new convert.HtmlEscape.new(mode);
    }
    convert(text) {
      T$.String()[_as](text);
      if (text == null) dart.nullFailed(I[107], 208, 25, "text");
      let val = this[_convert](text, 0, text.length);
      return val == null ? text : val;
    }
    [_convert](text, start, end) {
      if (text == null) dart.nullFailed(I[107], 217, 27, "text");
      if (start == null) dart.nullFailed(I[107], 217, 37, "start");
      if (end == null) dart.nullFailed(I[107], 217, 48, "end");
      let result = null;
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let ch = text[$_get](i);
        let replacement = null;
        switch (ch) {
          case "&":
            {
              replacement = "&amp;";
              break;
            }
          case "\"":
            {
              if (dart.test(this.mode.escapeQuot)) replacement = "&quot;";
              break;
            }
          case "'":
            {
              if (dart.test(this.mode.escapeApos)) replacement = "&#39;";
              break;
            }
          case "<":
            {
              if (dart.test(this.mode.escapeLtGt)) replacement = "&lt;";
              break;
            }
          case ">":
            {
              if (dart.test(this.mode.escapeLtGt)) replacement = "&gt;";
              break;
            }
          case "/":
            {
              if (dart.test(this.mode.escapeSlash)) replacement = "&#47;";
              break;
            }
        }
        if (replacement != null) {
          result == null ? result = new core.StringBuffer.new() : null;
          if (dart.notNull(i) > dart.notNull(start)) result.write(text[$substring](start, i));
          result.write(replacement);
          start = dart.notNull(i) + 1;
        }
      }
      if (result == null) return null;
      if (dart.notNull(end) > dart.notNull(start)) result.write(text[$substring](start, end));
      return dart.toString(result);
    }
    startChunkedConversion(sink) {
      T$2.SinkOfString()[_as](sink);
      if (sink == null) dart.nullFailed(I[107], 254, 60, "sink");
      return new convert._HtmlEscapeSink.new(this, T$2.StringConversionSink()[_is](sink) ? sink : new convert._StringAdapterSink.new(sink));
    }
  };
  (convert.HtmlEscape.new = function(mode = C[135] || CT.C135) {
    if (mode == null) dart.nullFailed(I[107], 206, 26, "mode");
    this[mode$] = mode;
    this.$ti = this.$ti || T$2.HtmlEscape();
    dart.global.Object.getPrototypeOf(convert.HtmlEscape).new.call(this);
    ;
  }).prototype = convert.HtmlEscape.prototype;
  dart.addRtiResources(convert.HtmlEscape, ["convert|HtmlEscape"]);
  dart.setMethodSignature(convert.HtmlEscape, () => dart.global.Object.setPrototypeOf({
    convert: T$.ObjectNToString(),
    [_convert]: T$2.StringAndintAndintToStringN(),
    startChunkedConversion: T$2.ObjectNToStringConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.HtmlEscape))));
  dart.setLibraryUri(convert.HtmlEscape, I[41]);
  dart.setFieldSignature(convert.HtmlEscape, () => dart.global.Object.setPrototypeOf({mode: {type: T$2.HtmlEscapeMode(), isConst: false, isFinal: true, libraryUri: I[41]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert.HtmlEscape))));
  var _escape$ = dart.privateName(convert, "_escape");
  convert._HtmlEscapeSink = class _HtmlEscapeSink extends convert.StringConversionSink {
    static ['_#new#tearOff'](_escape, _sink) {
      if (_escape == null) dart.nullFailed(I[107], 264, 24, "_escape");
      if (_sink == null) dart.nullFailed(I[107], 264, 38, "_sink");
      return new convert._HtmlEscapeSink.new(_escape, _sink);
    }
    addSlice(chunk, start, end, isLast) {
      if (chunk == null) dart.nullFailed(I[107], 266, 24, "chunk");
      if (start == null) dart.nullFailed(I[107], 266, 35, "start");
      if (end == null) dart.nullFailed(I[107], 266, 46, "end");
      if (isLast == null) dart.nullFailed(I[107], 266, 56, "isLast");
      let val = this[_escape$][_convert](chunk, start, end);
      if (val == null) {
        this[_sink$0].addSlice(chunk, start, end, isLast);
      } else {
        this[_sink$0].add(val);
        if (dart.test(isLast)) this[_sink$0].close();
      }
    }
    close() {
      this[_sink$0].close();
    }
  };
  (convert._HtmlEscapeSink.new = function(_escape, _sink) {
    if (_escape == null) dart.nullFailed(I[107], 264, 24, "_escape");
    if (_sink == null) dart.nullFailed(I[107], 264, 38, "_sink");
    this[_escape$] = _escape;
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._HtmlEscapeSink).new.call(this);
    ;
  }).prototype = convert._HtmlEscapeSink.prototype;
  dart.addRtiResources(convert._HtmlEscapeSink, ["convert|_HtmlEscapeSink"]);
  dart.setMethodSignature(convert._HtmlEscapeSink, () => dart.global.Object.setPrototypeOf({
    addSlice: T$2.StringAndintAndint__Tovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._HtmlEscapeSink))));
  dart.setLibraryUri(convert._HtmlEscapeSink, I[41]);
  dart.setFieldSignature(convert._HtmlEscapeSink, () => dart.global.Object.setPrototypeOf({
    [_escape$]: {type: T$2.HtmlEscape(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_sink$0]: {type: T$2.StringConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._HtmlEscapeSink))));
  var unsupportedObject$ = dart.privateName(convert, "JsonUnsupportedObjectError.unsupportedObject");
  var cause$ = dart.privateName(convert, "JsonUnsupportedObjectError.cause");
  var partialResult$ = dart.privateName(convert, "JsonUnsupportedObjectError.partialResult");
  convert.JsonUnsupportedObjectError = class JsonUnsupportedObjectError extends core.Error {
    get unsupportedObject() {
      return this[unsupportedObject$];
    }
    set unsupportedObject(value) {
      super.unsupportedObject = value;
    }
    get cause() {
      return this[cause$];
    }
    set cause(value) {
      super.cause = value;
    }
    get partialResult() {
      return this[partialResult$];
    }
    set partialResult(value) {
      super.partialResult = value;
    }
    static ['_#new#tearOff'](unsupportedObject, opts) {
      let cause = opts && 'cause' in opts ? opts.cause : null;
      let partialResult = opts && 'partialResult' in opts ? opts.partialResult : null;
      return new convert.JsonUnsupportedObjectError.new(unsupportedObject, {cause: cause, partialResult: partialResult});
    }
    toString() {
      let safeString = core.Error.safeToString(this.unsupportedObject);
      let prefix = null;
      if (this.cause != null) {
        prefix = "Converting object to an encodable object failed:";
      } else {
        prefix = "Converting object did not return an encodable object:";
      }
      return dart.str(prefix) + " " + dart.str(safeString);
    }
  };
  (convert.JsonUnsupportedObjectError.new = function(unsupportedObject, opts) {
    let cause = opts && 'cause' in opts ? opts.cause : null;
    let partialResult = opts && 'partialResult' in opts ? opts.partialResult : null;
    this[unsupportedObject$] = unsupportedObject;
    this[cause$] = cause;
    this[partialResult$] = partialResult;
    dart.global.Object.getPrototypeOf(convert.JsonUnsupportedObjectError).new.call(this);
    ;
  }).prototype = convert.JsonUnsupportedObjectError.prototype;
  dart.addRtiResources(convert.JsonUnsupportedObjectError, ["convert|JsonUnsupportedObjectError"]);
  dart.setLibraryUri(convert.JsonUnsupportedObjectError, I[41]);
  dart.setFieldSignature(convert.JsonUnsupportedObjectError, () => dart.global.Object.setPrototypeOf({
    unsupportedObject: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    cause: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    partialResult: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert.JsonUnsupportedObjectError))));
  dart.defineExtensionMethods(convert.JsonUnsupportedObjectError, ['toString']);
  convert.JsonCyclicError = class JsonCyclicError extends convert.JsonUnsupportedObjectError {
    static ['_#new#tearOff'](object) {
      return new convert.JsonCyclicError.new(object);
    }
    toString() {
      return "Cyclic error in JSON stringify";
    }
  };
  (convert.JsonCyclicError.new = function(object) {
    dart.global.Object.getPrototypeOf(convert.JsonCyclicError).new.call(this, object);
    ;
  }).prototype = convert.JsonCyclicError.prototype;
  dart.addRtiResources(convert.JsonCyclicError, ["convert|JsonCyclicError"]);
  dart.setLibraryUri(convert.JsonCyclicError, I[41]);
  dart.defineExtensionMethods(convert.JsonCyclicError, ['toString']);
  var _reviver = dart.privateName(convert, "JsonCodec._reviver");
  var _toEncodable = dart.privateName(convert, "JsonCodec._toEncodable");
  var _toEncodable$ = dart.privateName(convert, "_toEncodable");
  var JsonEncoder__toEncodable = dart.privateName(convert, "JsonEncoder._toEncodable");
  var JsonEncoder_indent = dart.privateName(convert, "JsonEncoder.indent");
  var JsonDecoder__reviver = dart.privateName(convert, "JsonDecoder._reviver");
  convert.JsonCodec = class JsonCodec extends G.CodecOfObjectN$String() {
    get [_reviver$]() {
      return this[_reviver];
    }
    set [_reviver$](value) {
      super[_reviver$] = value;
    }
    get [_toEncodable$]() {
      return this[_toEncodable];
    }
    set [_toEncodable$](value) {
      super[_toEncodable$] = value;
    }
    static ['_#new#tearOff'](opts) {
      let reviver = opts && 'reviver' in opts ? opts.reviver : null;
      let toEncodable = opts && 'toEncodable' in opts ? opts.toEncodable : null;
      return new convert.JsonCodec.new({reviver: reviver, toEncodable: toEncodable});
    }
    static ['_#withReviver#tearOff'](reviver) {
      if (reviver == null) dart.nullFailed(I[108], 202, 33, "reviver");
      return new convert.JsonCodec.withReviver(reviver);
    }
    decode(source, opts) {
      T$.String()[_as](source);
      if (source == null) dart.nullFailed(I[108], 213, 25, "source");
      let reviver = opts && 'reviver' in opts ? opts.reviver : null;
      reviver == null ? reviver = this[_reviver$] : null;
      if (reviver == null) return this.decoder.convert(source);
      return new convert.JsonDecoder.new(reviver).convert(source);
    }
    encode(value, opts) {
      let toEncodable = opts && 'toEncodable' in opts ? opts.toEncodable : null;
      toEncodable == null ? toEncodable = this[_toEncodable$] : null;
      if (toEncodable == null) return this.encoder.convert(value);
      return new convert.JsonEncoder.new(toEncodable).convert(value);
    }
    get encoder() {
      if (this[_toEncodable$] == null) return C[139] || CT.C139;
      return new convert.JsonEncoder.new(this[_toEncodable$]);
    }
    get decoder() {
      if (this[_reviver$] == null) return C[140] || CT.C140;
      return new convert.JsonDecoder.new(this[_reviver$]);
    }
  };
  (convert.JsonCodec.new = function(opts) {
    let reviver = opts && 'reviver' in opts ? opts.reviver : null;
    let toEncodable = opts && 'toEncodable' in opts ? opts.toEncodable : null;
    this[_reviver] = reviver;
    this[_toEncodable] = toEncodable;
    this.$ti = this.$ti || T$2.JsonCodec();
    dart.global.Object.getPrototypeOf(convert.JsonCodec).new.call(this);
    ;
  }).prototype = convert.JsonCodec.prototype;
  (convert.JsonCodec.withReviver = function(reviver) {
    if (reviver == null) dart.nullFailed(I[108], 202, 33, "reviver");
    convert.JsonCodec.new.call(this, {reviver: reviver});
  }).prototype = convert.JsonCodec.prototype;
  dart.addRtiResources(convert.JsonCodec, ["convert|JsonCodec"]);
  dart.setMethodSignature(convert.JsonCodec, () => dart.global.Object.setPrototypeOf({
    decode: T$2.ObjectN__Todynamic(),
    encode: T$2.ObjectN__ToString$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.JsonCodec))));
  dart.setGetterSignature(convert.JsonCodec, () => dart.global.Object.setPrototypeOf({
    encoder: T$2.JsonEncoder(),
    decoder: T$2.JsonDecoder()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(convert.JsonCodec))));
  dart.setLibraryUri(convert.JsonCodec, I[41]);
  dart.setFieldSignature(convert.JsonCodec, () => dart.global.Object.setPrototypeOf({
    [_reviver$]: {type: T$2.ObjectNAndObjectNToNObjectN(), isConst: false, isFinal: true},
    [_toEncodable$]: {type: T$2.dynamicToNObjectN(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert.JsonCodec))));
  const indent$ = JsonEncoder_indent;
  const _toEncodable$0 = JsonEncoder__toEncodable;
  convert.JsonEncoder = class JsonEncoder extends G.ConverterOfObjectN$String() {
    get indent() {
      return this[indent$];
    }
    set indent(value) {
      super.indent = value;
    }
    get [_toEncodable$]() {
      return this[_toEncodable$0];
    }
    set [_toEncodable$](value) {
      super[_toEncodable$] = value;
    }
    static ['_#new#tearOff'](toEncodable = null) {
      return new convert.JsonEncoder.new(toEncodable);
    }
    static ['_#withIndent#tearOff'](indent, toEncodable = null) {
      return new convert.JsonEncoder.withIndent(indent, toEncodable);
    }
    convert(object) {
      return convert._JsonStringStringifier.stringify(object, this[_toEncodable$], this.indent);
    }
    startChunkedConversion(sink) {
      T$2.SinkOfString()[_as](sink);
      if (sink == null) dart.nullFailed(I[108], 354, 70, "sink");
      if (T$2._Utf8EncoderSink()[_is](sink)) {
        return new convert._JsonUtf8EncoderSink.new(sink[_sink$0], this[_toEncodable$], convert.JsonUtf8Encoder._utf8Encode(this.indent), 256);
      }
      return new convert._JsonEncoderSink.new(T$2.StringConversionSink()[_is](sink) ? sink : new convert._StringAdapterSink.new(sink), this[_toEncodable$], this.indent);
    }
    bind(stream) {
      T$2.StreamOfObjectN()[_as](stream);
      if (stream == null) dart.nullFailed(I[108], 369, 39, "stream");
      return super.bind(stream);
    }
    fuse(T, other) {
      T[_eval]("convert|Converter<core|String,0>")[_as](other);
      if (other == null) dart.nullFailed(I[108], 371, 54, "other");
      if (T$2.Utf8Encoder()[_is](other)) {
        return T[_eval]("convert|Converter<core|Object?,0>")[_as](new convert.JsonUtf8Encoder.new(this.indent, this[_toEncodable$]));
      }
      return super.fuse(T, other);
    }
  };
  (convert.JsonEncoder.new = function(toEncodable = null) {
    this[indent$] = null;
    this[_toEncodable$0] = toEncodable;
    this.$ti = this.$ti || T$2.JsonEncoder();
    dart.global.Object.getPrototypeOf(convert.JsonEncoder).new.call(this);
    ;
  }).prototype = convert.JsonEncoder.prototype;
  (convert.JsonEncoder.withIndent = function(indent, toEncodable = null) {
    this[indent$] = indent;
    this[_toEncodable$0] = toEncodable;
    this.$ti = this.$ti || T$2.JsonEncoder();
    dart.global.Object.getPrototypeOf(convert.JsonEncoder).new.call(this);
    ;
  }).prototype = convert.JsonEncoder.prototype;
  dart.addRtiResources(convert.JsonEncoder, ["convert|JsonEncoder"]);
  dart.setMethodSignature(convert.JsonEncoder, () => dart.global.Object.setPrototypeOf({
    convert: T$.ObjectNToString(),
    startChunkedConversion: T$2.ObjectNToChunkedConversionSinkOfObjectN(),
    fuse: dart_rti.findType("convert|Converter<core|Object?,0^>(core|Object?)<core|Object?>")
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.JsonEncoder))));
  dart.setMethodsDefaultTypeArgSignature(convert.JsonEncoder, () => dart.global.Object.setPrototypeOf({fuse: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(convert.JsonEncoder))));
  dart.setLibraryUri(convert.JsonEncoder, I[41]);
  dart.setFieldSignature(convert.JsonEncoder, () => dart.global.Object.setPrototypeOf({
    indent: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_toEncodable$]: {type: T$2.dynamicToNObjectN(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert.JsonEncoder))));
  var _indent$ = dart.privateName(convert, "_indent");
  var _bufferSize$ = dart.privateName(convert, "_bufferSize");
  convert.JsonUtf8Encoder = class JsonUtf8Encoder extends G.ConverterOfObjectN$ListOfint() {
    static ['_#new#tearOff'](indent = null, toEncodable = null, bufferSize = null) {
      return new convert.JsonUtf8Encoder.new(indent, toEncodable, bufferSize);
    }
    static _utf8Encode(string) {
      if (string == null) return null;
      if (string[$isEmpty]) return _native_typed_data.NativeUint8List.new(0);
      L0: {
        for (let i = 0; i < string.length; i = i + 1) {
          if (string[$codeUnitAt](i) >= 128) break L0;
        }
        return string[$codeUnits];
      }
      return convert.utf8.encode(string);
    }
    convert(object) {
      let bytes = G.JSArrayOfListOfint().of([]);
      function addChunk(chunk, start, end) {
        if (chunk == null) dart.nullFailed(I[108], 446, 29, "chunk");
        if (start == null) dart.nullFailed(I[108], 446, 40, "start");
        if (end == null) dart.nullFailed(I[108], 446, 51, "end");
        if (dart.notNull(start) > 0 || dart.notNull(end) < dart.notNull(chunk[$length])) {
          let length = dart.notNull(end) - dart.notNull(start);
          chunk = typed_data.Uint8List.view(chunk[$buffer], dart.notNull(chunk[$offsetInBytes]) + dart.notNull(start), length);
        }
        bytes[$add](chunk);
      }
      dart.fn(addChunk, T$2.Uint8ListAndintAndintTovoid());
      convert._JsonUtf8Stringifier.stringify(object, this[_indent$], this[_toEncodable$], this[_bufferSize$], addChunk);
      if (bytes[$length] === 1) return bytes[$_get](0);
      let length = 0;
      for (let i = 0; i < dart.notNull(bytes[$length]); i = i + 1) {
        length = length + dart.notNull(bytes[$_get](i)[$length]);
      }
      let result = _native_typed_data.NativeUint8List.new(length);
      for (let i = 0, offset = 0; i < dart.notNull(bytes[$length]); i = i + 1) {
        let byteList = bytes[$_get](i);
        let end = offset + dart.notNull(byteList[$length]);
        result[$setRange](offset, end, byteList);
        offset = end;
      }
      return result;
    }
    startChunkedConversion(sink) {
      T$2.SinkOfListOfint()[_as](sink);
      if (sink == null) dart.nullFailed(I[108], 478, 73, "sink");
      let byteSink = null;
      if (T$2.ByteConversionSink()[_is](sink)) {
        byteSink = sink;
      } else {
        byteSink = new convert._ByteAdapterSink.new(sink);
      }
      return new convert._JsonUtf8EncoderSink.new(byteSink, this[_toEncodable$], this[_indent$], this[_bufferSize$]);
    }
    bind(stream) {
      T$2.StreamOfObjectN()[_as](stream);
      if (stream == null) dart.nullFailed(I[108], 489, 42, "stream");
      return super.bind(stream);
    }
  };
  (convert.JsonUtf8Encoder.new = function(indent = null, toEncodable = null, bufferSize = null) {
    let t$36152;
    this[_indent$] = convert.JsonUtf8Encoder._utf8Encode(indent);
    this[_toEncodable$] = toEncodable;
    this[_bufferSize$] = (t$36152 = bufferSize, t$36152 == null ? 256 : t$36152);
    this.$ti = this.$ti || T$2.JsonUtf8Encoder();
    dart.global.Object.getPrototypeOf(convert.JsonUtf8Encoder).new.call(this);
    ;
  }).prototype = convert.JsonUtf8Encoder.prototype;
  dart.addRtiResources(convert.JsonUtf8Encoder, ["convert|JsonUtf8Encoder"]);
  dart.setMethodSignature(convert.JsonUtf8Encoder, () => dart.global.Object.setPrototypeOf({
    convert: T$2.ObjectNToListOfint(),
    startChunkedConversion: T$2.ObjectNToChunkedConversionSinkOfObjectN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.JsonUtf8Encoder))));
  dart.setStaticMethodSignature(convert.JsonUtf8Encoder, () => ['_utf8Encode']);
  dart.setLibraryUri(convert.JsonUtf8Encoder, I[41]);
  dart.setFieldSignature(convert.JsonUtf8Encoder, () => dart.global.Object.setPrototypeOf({
    [_indent$]: {type: T$2.ListNOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_toEncodable$]: {type: T$2.dynamicToNObjectN(), isConst: false, isFinal: true},
    [_bufferSize$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert.JsonUtf8Encoder))));
  dart.setStaticFieldSignature(convert.JsonUtf8Encoder, () => ['_defaultBufferSize']);
  dart.defineLazy(convert.JsonUtf8Encoder, {
    /*convert.JsonUtf8Encoder._defaultBufferSize*/get _defaultBufferSize() {
      return 256;
    }
  }, false);
  var _isDone = dart.privateName(convert, "_isDone");
  convert._JsonEncoderSink = class _JsonEncoderSink extends G.ChunkedConversionSinkOfObjectN() {
    static ['_#new#tearOff'](_sink, _toEncodable, _indent) {
      if (_sink == null) dart.nullFailed(I[108], 503, 25, "_sink");
      return new convert._JsonEncoderSink.new(_sink, _toEncodable, _indent);
    }
    add(o) {
      if (dart.test(this[_isDone])) {
        dart.throw(new core.StateError.new("Only one call to add allowed"));
      }
      this[_isDone] = true;
      let stringSink = this[_sink$0].asStringSink();
      convert._JsonStringStringifier.printOn(o, stringSink, this[_toEncodable$], this[_indent$]);
      stringSink.close();
    }
    close() {
    }
  };
  (convert._JsonEncoderSink.new = function(_sink, _toEncodable, _indent) {
    if (_sink == null) dart.nullFailed(I[108], 503, 25, "_sink");
    this[_isDone] = false;
    this[_sink$0] = _sink;
    this[_toEncodable$] = _toEncodable;
    this[_indent$] = _indent;
    this.$ti = this.$ti || T$2._JsonEncoderSink();
    dart.global.Object.getPrototypeOf(convert._JsonEncoderSink).new.call(this);
    ;
  }).prototype = convert._JsonEncoderSink.prototype;
  dart.addRtiResources(convert._JsonEncoderSink, ["convert|_JsonEncoderSink"]);
  dart.setMethodSignature(convert._JsonEncoderSink, () => dart.global.Object.setPrototypeOf({
    add: T$.ObjectNTovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._JsonEncoderSink))));
  dart.setLibraryUri(convert._JsonEncoderSink, I[41]);
  dart.setFieldSignature(convert._JsonEncoderSink, () => dart.global.Object.setPrototypeOf({
    [_indent$]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_toEncodable$]: {type: T$2.dynamicToNObjectN(), isConst: false, isFinal: true},
    [_sink$0]: {type: T$2.StringConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_isDone]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonEncoderSink))));
  var _addChunk = dart.privateName(convert, "_addChunk");
  convert._JsonUtf8EncoderSink = class _JsonUtf8EncoderSink extends G.ChunkedConversionSinkOfObjectN() {
    static ['_#new#tearOff'](_sink, _toEncodable, _indent, _bufferSize) {
      if (_sink == null) dart.nullFailed(I[108], 532, 12, "_sink");
      if (_bufferSize == null) dart.nullFailed(I[108], 532, 57, "_bufferSize");
      return new convert._JsonUtf8EncoderSink.new(_sink, _toEncodable, _indent, _bufferSize);
    }
    [_addChunk](chunk, start, end) {
      if (chunk == null) dart.nullFailed(I[108], 535, 28, "chunk");
      if (start == null) dart.nullFailed(I[108], 535, 39, "start");
      if (end == null) dart.nullFailed(I[108], 535, 50, "end");
      this[_sink$0].addSlice(chunk, start, end, false);
    }
    add(object) {
      if (dart.test(this[_isDone])) {
        dart.throw(new core.StateError.new("Only one call to add allowed"));
      }
      this[_isDone] = true;
      convert._JsonUtf8Stringifier.stringify(object, this[_indent$], this[_toEncodable$], this[_bufferSize$], dart.bind(this, _addChunk));
      this[_sink$0].close();
    }
    close() {
      if (!dart.test(this[_isDone])) {
        this[_isDone] = true;
        this[_sink$0].close();
      }
    }
  };
  (convert._JsonUtf8EncoderSink.new = function(_sink, _toEncodable, _indent, _bufferSize) {
    if (_sink == null) dart.nullFailed(I[108], 532, 12, "_sink");
    if (_bufferSize == null) dart.nullFailed(I[108], 532, 57, "_bufferSize");
    this[_isDone] = false;
    this[_sink$0] = _sink;
    this[_toEncodable$] = _toEncodable;
    this[_indent$] = _indent;
    this[_bufferSize$] = _bufferSize;
    this.$ti = this.$ti || T$2._JsonUtf8EncoderSink();
    dart.global.Object.getPrototypeOf(convert._JsonUtf8EncoderSink).new.call(this);
    ;
  }).prototype = convert._JsonUtf8EncoderSink.prototype;
  dart.addRtiResources(convert._JsonUtf8EncoderSink, ["convert|_JsonUtf8EncoderSink"]);
  dart.setMethodSignature(convert._JsonUtf8EncoderSink, () => dart.global.Object.setPrototypeOf({
    [_addChunk]: T$2.Uint8ListAndintAndintTovoid(),
    add: T$.ObjectNTovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._JsonUtf8EncoderSink))));
  dart.setLibraryUri(convert._JsonUtf8EncoderSink, I[41]);
  dart.setFieldSignature(convert._JsonUtf8EncoderSink, () => dart.global.Object.setPrototypeOf({
    [_sink$0]: {type: T$2.ByteConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_indent$]: {type: T$2.ListNOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_toEncodable$]: {type: T$2.dynamicToNObjectN(), isConst: false, isFinal: true},
    [_bufferSize$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_isDone]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonUtf8EncoderSink))));
  const _reviver$0 = JsonDecoder__reviver;
  convert.JsonDecoder = class JsonDecoder extends G.ConverterOfString$ObjectN() {
    get [_reviver$]() {
      return this[_reviver$0];
    }
    set [_reviver$](value) {
      super[_reviver$] = value;
    }
    static ['_#new#tearOff'](reviver = null) {
      return new convert.JsonDecoder.new(reviver);
    }
    convert(input) {
      T$.String()[_as](input);
      if (input == null) dart.nullFailed(I[108], 610, 26, "input");
      return convert._parseJson(input, this[_reviver$]);
    }
    startChunkedConversion(sink) {
      if (sink == null) dart.nullFailed(I[99], 352, 61, "sink");
      return new convert._JsonDecoderSink.new(this[_reviver$], sink);
    }
    bind(stream) {
      T$2.StreamOfString()[_as](stream);
      if (stream == null) dart.nullFailed(I[108], 618, 39, "stream");
      return super.bind(stream);
    }
  };
  (convert.JsonDecoder.new = function(reviver = null) {
    this[_reviver$0] = reviver;
    this.$ti = this.$ti || T$2.JsonDecoder();
    dart.global.Object.getPrototypeOf(convert.JsonDecoder).new.call(this);
    ;
  }).prototype = convert.JsonDecoder.prototype;
  dart.addRtiResources(convert.JsonDecoder, ["convert|JsonDecoder"]);
  dart.setMethodSignature(convert.JsonDecoder, () => dart.global.Object.setPrototypeOf({
    convert: T$1.ObjectNTodynamic(),
    startChunkedConversion: T$2.SinkOfObjectNToStringConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.JsonDecoder))));
  dart.setLibraryUri(convert.JsonDecoder, I[41]);
  dart.setFieldSignature(convert.JsonDecoder, () => dart.global.Object.setPrototypeOf({[_reviver$]: {type: T$2.ObjectNAndObjectNToNObjectN(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(convert.JsonDecoder))));
  var _seen = dart.privateName(convert, "_seen");
  var _checkCycle = dart.privateName(convert, "_checkCycle");
  var _removeSeen = dart.privateName(convert, "_removeSeen");
  var _partialResult = dart.privateName(convert, "_partialResult");
  convert._JsonStringifier = class _JsonStringifier extends core.Object {
    static hexDigit(x) {
      if (x == null) dart.nullFailed(I[108], 679, 27, "x");
      return dart.notNull(x) < 10 ? 48 + dart.notNull(x) : 87 + dart.notNull(x);
    }
    writeStringContent(s) {
      if (s == null) dart.nullFailed(I[108], 682, 34, "s");
      let offset = 0;
      let length = s.length;
      for (let i = 0; i < length; i = i + 1) {
        let charCode = s[$codeUnitAt](i);
        if (charCode > 92) {
          if (charCode >= 55296) {
            if ((charCode & 64512) >>> 0 === 55296 && !(i + 1 < length && (s[$codeUnitAt](i + 1) & 64512) >>> 0 === 56320) || (charCode & 64512) >>> 0 === 56320 && !(i - 1 >= 0 && (s[$codeUnitAt](i - 1) & 64512) >>> 0 === 55296)) {
              if (i > offset) this.writeStringSlice(s, offset, i);
              offset = i + 1;
              this.writeCharCode(92);
              this.writeCharCode(117);
              this.writeCharCode(100);
              this.writeCharCode(convert._JsonStringifier.hexDigit(charCode >> 8 & 15));
              this.writeCharCode(convert._JsonStringifier.hexDigit(charCode >> 4 & 15));
              this.writeCharCode(convert._JsonStringifier.hexDigit(charCode & 15));
            }
          }
          continue;
        }
        if (charCode < 32) {
          if (i > offset) this.writeStringSlice(s, offset, i);
          offset = i + 1;
          this.writeCharCode(92);
          switch (charCode) {
            case 8:
              {
                this.writeCharCode(98);
                break;
              }
            case 9:
              {
                this.writeCharCode(116);
                break;
              }
            case 10:
              {
                this.writeCharCode(110);
                break;
              }
            case 12:
              {
                this.writeCharCode(102);
                break;
              }
            case 13:
              {
                this.writeCharCode(114);
                break;
              }
            default:
              {
                this.writeCharCode(117);
                this.writeCharCode(48);
                this.writeCharCode(48);
                this.writeCharCode(convert._JsonStringifier.hexDigit(charCode >> 4 & 15));
                this.writeCharCode(convert._JsonStringifier.hexDigit(charCode & 15));
                break;
              }
          }
        } else if (charCode === 34 || charCode === 92) {
          if (i > offset) this.writeStringSlice(s, offset, i);
          offset = i + 1;
          this.writeCharCode(92);
          this.writeCharCode(charCode);
        }
      }
      if (offset === 0) {
        this.writeString(s);
      } else if (offset < length) {
        this.writeStringSlice(s, offset, length);
      }
    }
    [_checkCycle](object) {
      for (let i = 0; i < dart.notNull(this[_seen][$length]); i = i + 1) {
        if (core.identical(object, this[_seen][$_get](i))) {
          dart.throw(new convert.JsonCyclicError.new(object));
        }
      }
      this[_seen][$add](object);
    }
    [_removeSeen](object) {
      if (!dart.test(this[_seen][$isNotEmpty])) dart.assertFailed(null, I[108], 771, 12, "_seen.isNotEmpty");
      if (!core.identical(this[_seen][$last], object)) dart.assertFailed(null, I[108], 772, 12, "identical(_seen.last, object)");
      this[_seen][$removeLast]();
    }
    writeObject(object) {
      let t$36152;
      if (dart.test(this.writeJsonValue(object))) return;
      this[_checkCycle](object);
      try {
        let customJson = (t$36152 = object, this[_toEncodable$](t$36152));
        if (!dart.test(this.writeJsonValue(customJson))) {
          dart.throw(new convert.JsonUnsupportedObjectError.new(object, {partialResult: this[_partialResult]}));
        }
        this[_removeSeen](object);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          dart.throw(new convert.JsonUnsupportedObjectError.new(object, {cause: e, partialResult: this[_partialResult]}));
        } else
          throw t$36$35e;
      }
    }
    writeJsonValue(object) {
      if (typeof object == 'number') {
        if (!object[$isFinite]) return false;
        this.writeNumber(object);
        return true;
      } else if (object === true) {
        this.writeString("true");
        return true;
      } else if (object === false) {
        this.writeString("false");
        return true;
      } else if (object == null) {
        this.writeString("null");
        return true;
      } else if (typeof object == 'string') {
        this.writeString("\"");
        this.writeStringContent(object);
        this.writeString("\"");
        return true;
      } else if (T$.List()[_is](object)) {
        this[_checkCycle](object);
        this.writeList(object);
        this[_removeSeen](object);
        return true;
      } else if (T$.Map()[_is](object)) {
        this[_checkCycle](object);
        let success = this.writeMap(object);
        this[_removeSeen](object);
        return success;
      } else {
        return false;
      }
    }
    writeList(list) {
      if (list == null) dart.nullFailed(I[108], 838, 32, "list");
      this.writeString("[");
      if (dart.test(list[$isNotEmpty])) {
        this.writeObject(list[$_get](0));
        for (let i = 1; i < dart.notNull(list[$length]); i = i + 1) {
          this.writeString(",");
          this.writeObject(list[$_get](i));
        }
      }
      this.writeString("]");
    }
    writeMap(map) {
      if (map == null) dart.nullFailed(I[108], 851, 39, "map");
      if (dart.test(map[$isEmpty])) {
        this.writeString("{}");
        return true;
      }
      let keyValueList = G.ListOfObjectN().filled(dart.notNull(map[$length]) * 2, null);
      let i = 0;
      let allStringKeys = true;
      map[$forEach](dart.fn((key, value) => {
        let t$36153, t$36153$;
        if (!(typeof key == 'string')) {
          allStringKeys = false;
        }
        keyValueList[$_set]((t$36153 = i, i = t$36153 + 1, t$36153), key);
        keyValueList[$_set]((t$36153$ = i, i = t$36153$ + 1, t$36153$), value);
      }, T$.ObjectNAndObjectNTovoid()));
      if (!allStringKeys) return false;
      this.writeString("{");
      let separator = "\"";
      for (let i = 0; i < dart.notNull(keyValueList[$length]); i = i + 2) {
        this.writeString(separator);
        separator = ",\"";
        this.writeStringContent(T$.String()[_as](keyValueList[$_get](i)));
        this.writeString("\":");
        this.writeObject(keyValueList[$_get](i + 1));
      }
      this.writeString("}");
      return true;
    }
  };
  (convert._JsonStringifier.new = function(toEncodable) {
    let t$36152;
    this[_seen] = [];
    this[_toEncodable$] = (t$36152 = toEncodable, t$36152 == null ? C[141] || CT.C141 : t$36152);
    ;
  }).prototype = convert._JsonStringifier.prototype;
  dart.addRtiResources(convert._JsonStringifier, ["convert|_JsonStringifier"]);
  dart.setMethodSignature(convert._JsonStringifier, () => dart.global.Object.setPrototypeOf({
    writeStringContent: T$.StringTovoid(),
    [_checkCycle]: T$.ObjectNTovoid(),
    [_removeSeen]: T$.ObjectNTovoid(),
    writeObject: T$.ObjectNTovoid(),
    writeJsonValue: T$.ObjectNTobool(),
    writeList: T$2.ListOfObjectNTovoid(),
    writeMap: T$2.MapOfObjectN$ObjectNTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._JsonStringifier))));
  dart.setStaticMethodSignature(convert._JsonStringifier, () => ['hexDigit']);
  dart.setLibraryUri(convert._JsonStringifier, I[41]);
  dart.setFieldSignature(convert._JsonStringifier, () => dart.global.Object.setPrototypeOf({
    [_seen]: {type: T$.List(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_toEncodable$]: {type: T$.dynamicTodynamic(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonStringifier))));
  dart.setStaticFieldSignature(convert._JsonStringifier, () => ['backspace', 'tab', 'newline', 'carriageReturn', 'formFeed', 'quote', 'char_0', 'backslash', 'char_b', 'char_d', 'char_f', 'char_n', 'char_r', 'char_t', 'char_u', 'surrogateMin', 'surrogateMask', 'surrogateLead', 'surrogateTrail']);
  dart.defineLazy(convert._JsonStringifier, {
    /*convert._JsonStringifier.backspace*/get backspace() {
      return 8;
    },
    /*convert._JsonStringifier.tab*/get tab() {
      return 9;
    },
    /*convert._JsonStringifier.newline*/get newline() {
      return 10;
    },
    /*convert._JsonStringifier.carriageReturn*/get carriageReturn() {
      return 13;
    },
    /*convert._JsonStringifier.formFeed*/get formFeed() {
      return 12;
    },
    /*convert._JsonStringifier.quote*/get quote() {
      return 34;
    },
    /*convert._JsonStringifier.char_0*/get char_0() {
      return 48;
    },
    /*convert._JsonStringifier.backslash*/get backslash() {
      return 92;
    },
    /*convert._JsonStringifier.char_b*/get char_b() {
      return 98;
    },
    /*convert._JsonStringifier.char_d*/get char_d() {
      return 100;
    },
    /*convert._JsonStringifier.char_f*/get char_f() {
      return 102;
    },
    /*convert._JsonStringifier.char_n*/get char_n() {
      return 110;
    },
    /*convert._JsonStringifier.char_r*/get char_r() {
      return 114;
    },
    /*convert._JsonStringifier.char_t*/get char_t() {
      return 116;
    },
    /*convert._JsonStringifier.char_u*/get char_u() {
      return 117;
    },
    /*convert._JsonStringifier.surrogateMin*/get surrogateMin() {
      return 55296;
    },
    /*convert._JsonStringifier.surrogateMask*/get surrogateMask() {
      return 64512;
    },
    /*convert._JsonStringifier.surrogateLead*/get surrogateLead() {
      return 55296;
    },
    /*convert._JsonStringifier.surrogateTrail*/get surrogateTrail() {
      return 56320;
    }
  }, false);
  var _indentLevel = dart.privateName(convert, "_JsonPrettyPrintMixin._indentLevel");
  var _indentLevel$ = dart.privateName(convert, "_indentLevel");
  convert._JsonPrettyPrintMixin = class _JsonPrettyPrintMixin extends core.Object {};
  convert._JsonPrettyPrintMixin[dart.mixinOn] = Object => class _JsonPrettyPrintMixin extends Object {
    get [_indentLevel$]() {
      return this[_indentLevel];
    }
    set [_indentLevel$](value) {
      if (value == null) dart.nullFailed(I[108], 886, 7, "_indentLevel");
      this[_indentLevel] = value;
    }
    writeList(list) {
      if (list == null) dart.nullFailed(I[108], 891, 32, "list");
      if (dart.test(list[$isEmpty])) {
        this.writeString("[]");
      } else {
        this.writeString("[\n");
        this[_indentLevel$] = dart.notNull(this[_indentLevel$]) + 1;
        this.writeIndentation(this[_indentLevel$]);
        this.writeObject(list[$_get](0));
        for (let i = 1; i < dart.notNull(list[$length]); i = i + 1) {
          this.writeString(",\n");
          this.writeIndentation(this[_indentLevel$]);
          this.writeObject(list[$_get](i));
        }
        this.writeString("\n");
        this[_indentLevel$] = dart.notNull(this[_indentLevel$]) - 1;
        this.writeIndentation(this[_indentLevel$]);
        this.writeString("]");
      }
    }
    writeMap(map) {
      if (map == null) dart.nullFailed(I[108], 911, 39, "map");
      if (dart.test(map[$isEmpty])) {
        this.writeString("{}");
        return true;
      }
      let keyValueList = G.ListOfObjectN().filled(dart.notNull(map[$length]) * 2, null);
      let i = 0;
      let allStringKeys = true;
      map[$forEach](dart.fn((key, value) => {
        let t$36153, t$36153$;
        if (!(typeof key == 'string')) {
          allStringKeys = false;
        }
        keyValueList[$_set]((t$36153 = i, i = t$36153 + 1, t$36153), key);
        keyValueList[$_set]((t$36153$ = i, i = t$36153$ + 1, t$36153$), value);
      }, T$.ObjectNAndObjectNTovoid()));
      if (!allStringKeys) return false;
      this.writeString("{\n");
      this[_indentLevel$] = dart.notNull(this[_indentLevel$]) + 1;
      let separator = "";
      for (let i = 0; i < dart.notNull(keyValueList[$length]); i = i + 2) {
        this.writeString(separator);
        separator = ",\n";
        this.writeIndentation(this[_indentLevel$]);
        this.writeString("\"");
        this.writeStringContent(T$.String()[_as](keyValueList[$_get](i)));
        this.writeString("\": ");
        this.writeObject(keyValueList[$_get](i + 1));
      }
      this.writeString("\n");
      this[_indentLevel$] = dart.notNull(this[_indentLevel$]) - 1;
      this.writeIndentation(this[_indentLevel$]);
      this.writeString("}");
      return true;
    }
  };
  (convert._JsonPrettyPrintMixin[dart.mixinNew] = function() {
    this[_indentLevel] = 0;
  }).prototype = convert._JsonPrettyPrintMixin.prototype;
  dart.addRtiResources(convert._JsonPrettyPrintMixin, ["convert|_JsonPrettyPrintMixin", "convert|_JsonStringifier"]);
  dart.setMethodSignature(convert._JsonPrettyPrintMixin, () => dart.global.Object.setPrototypeOf({
    writeList: T$2.ListOfObjectNTovoid(),
    writeMap: T$2.MapOfObjectN$ObjectNTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._JsonPrettyPrintMixin))));
  dart.setLibraryUri(convert._JsonPrettyPrintMixin, I[41]);
  dart.setFieldSignature(convert._JsonPrettyPrintMixin, () => dart.global.Object.setPrototypeOf({[_indentLevel$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonPrettyPrintMixin))));
  convert._JsonStringStringifier = class _JsonStringStringifier extends convert._JsonStringifier {
    static ['_#new#tearOff'](_sink, _toEncodable) {
      if (_sink == null) dart.nullFailed(I[108], 952, 12, "_sink");
      return new convert._JsonStringStringifier.new(_sink, _toEncodable);
    }
    static stringify(object, toEncodable, indent) {
      let output = new core.StringBuffer.new();
      convert._JsonStringStringifier.printOn(object, output, toEncodable, indent);
      return dart.toString(output);
    }
    static printOn(object, output, toEncodable, indent) {
      if (output == null) dart.nullFailed(I[108], 974, 50, "output");
      let stringifier = null;
      if (indent == null) {
        stringifier = new convert._JsonStringStringifier.new(output, toEncodable);
      } else {
        stringifier = new convert._JsonStringStringifierPretty.new(output, toEncodable, indent);
      }
      stringifier.writeObject(object);
    }
    get [_partialResult]() {
      return T$2.StringBuffer()[_is](this[_sink$0]) ? dart.toString(this[_sink$0]) : null;
    }
    writeNumber(number) {
      if (number == null) dart.nullFailed(I[108], 987, 24, "number");
      this[_sink$0].write(dart.toString(number));
    }
    writeString(string) {
      if (string == null) dart.nullFailed(I[108], 991, 27, "string");
      this[_sink$0].write(string);
    }
    writeStringSlice(string, start, end) {
      if (string == null) dart.nullFailed(I[108], 995, 32, "string");
      if (start == null) dart.nullFailed(I[108], 995, 44, "start");
      if (end == null) dart.nullFailed(I[108], 995, 55, "end");
      this[_sink$0].write(string[$substring](start, end));
    }
    writeCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[108], 999, 26, "charCode");
      this[_sink$0].writeCharCode(charCode);
    }
  };
  (convert._JsonStringStringifier.new = function(_sink, _toEncodable) {
    if (_sink == null) dart.nullFailed(I[108], 952, 12, "_sink");
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._JsonStringStringifier).new.call(this, _toEncodable);
    ;
  }).prototype = convert._JsonStringStringifier.prototype;
  dart.addRtiResources(convert._JsonStringStringifier, ["convert|_JsonStringStringifier"]);
  dart.setMethodSignature(convert._JsonStringStringifier, () => dart.global.Object.setPrototypeOf({
    writeNumber: T$2.numTovoid(),
    writeString: T$.StringTovoid(),
    writeStringSlice: T$2.StringAndintAndintTovoid(),
    writeCharCode: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._JsonStringStringifier))));
  dart.setStaticMethodSignature(convert._JsonStringStringifier, () => ['stringify', 'printOn']);
  dart.setGetterSignature(convert._JsonStringStringifier, () => dart.global.Object.setPrototypeOf({[_partialResult]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(convert._JsonStringStringifier))));
  dart.setLibraryUri(convert._JsonStringStringifier, I[41]);
  dart.setFieldSignature(convert._JsonStringStringifier, () => dart.global.Object.setPrototypeOf({[_sink$0]: {type: T$2.StringSink(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonStringStringifier))));
  const _JsonStringStringifier__JsonPrettyPrintMixin$36 = class _JsonStringStringifier__JsonPrettyPrintMixin extends convert._JsonStringStringifier {};
  (_JsonStringStringifier__JsonPrettyPrintMixin$36.new = function(_sink, _toEncodable) {
    convert._JsonPrettyPrintMixin[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(_JsonStringStringifier__JsonPrettyPrintMixin$36).new.call(this, _sink, _toEncodable);
  }).prototype = _JsonStringStringifier__JsonPrettyPrintMixin$36.prototype;
  dart.applyMixin(_JsonStringStringifier__JsonPrettyPrintMixin$36, convert._JsonPrettyPrintMixin);
  convert._JsonStringStringifierPretty = class _JsonStringStringifierPretty extends _JsonStringStringifier__JsonPrettyPrintMixin$36 {
    static ['_#new#tearOff'](sink, toEncodable, _indent) {
      if (sink == null) dart.nullFailed(I[108], 1009, 18, "sink");
      if (_indent == null) dart.nullFailed(I[108], 1009, 62, "_indent");
      return new convert._JsonStringStringifierPretty.new(sink, toEncodable, _indent);
    }
    writeIndentation(count) {
      if (count == null) dart.nullFailed(I[108], 1012, 29, "count");
      for (let i = 0; i < dart.notNull(count); i = i + 1)
        this.writeString(this[_indent$]);
    }
  };
  (convert._JsonStringStringifierPretty.new = function(sink, toEncodable, _indent) {
    if (sink == null) dart.nullFailed(I[108], 1009, 18, "sink");
    if (_indent == null) dart.nullFailed(I[108], 1009, 62, "_indent");
    this[_indent$] = _indent;
    dart.global.Object.getPrototypeOf(convert._JsonStringStringifierPretty).new.call(this, sink, toEncodable);
    ;
  }).prototype = convert._JsonStringStringifierPretty.prototype;
  dart.addRtiResources(convert._JsonStringStringifierPretty, ["convert|_JsonStringStringifierPretty"]);
  dart.setMethodSignature(convert._JsonStringStringifierPretty, () => dart.global.Object.setPrototypeOf({writeIndentation: T$.intTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert._JsonStringStringifierPretty))));
  dart.setLibraryUri(convert._JsonStringStringifierPretty, I[41]);
  dart.setFieldSignature(convert._JsonStringStringifierPretty, () => dart.global.Object.setPrototypeOf({[_indent$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonStringStringifierPretty))));
  convert._JsonUtf8Stringifier = class _JsonUtf8Stringifier extends convert._JsonStringifier {
    static ['_#new#tearOff'](toEncodable, bufferSize, addChunk) {
      if (bufferSize == null) dart.nullFailed(I[108], 1028, 45, "bufferSize");
      if (addChunk == null) dart.nullFailed(I[108], 1028, 62, "addChunk");
      return new convert._JsonUtf8Stringifier.new(toEncodable, bufferSize, addChunk);
    }
    static stringify(object, indent, toEncodable, bufferSize, addChunk) {
      if (bufferSize == null) dart.nullFailed(I[108], 1045, 11, "bufferSize");
      if (addChunk == null) dart.nullFailed(I[108], 1046, 12, "addChunk");
      let stringifier = null;
      if (indent != null) {
        stringifier = new convert._JsonUtf8StringifierPretty.new(toEncodable, indent, bufferSize, addChunk);
      } else {
        stringifier = new convert._JsonUtf8Stringifier.new(toEncodable, bufferSize, addChunk);
      }
      stringifier.writeObject(object);
      stringifier.flush();
    }
    flush() {
      let t$36155, t$36154, t$36153;
      if (dart.notNull(this.index) > 0) {
        t$36153 = this.buffer;
        t$36154 = 0;
        t$36155 = this.index;
        this.addChunk(t$36153, t$36154, t$36155);
      }
      this.buffer = _native_typed_data.NativeUint8List.new(0);
      this.index = 0;
    }
    get [_partialResult]() {
      return null;
    }
    writeNumber(number) {
      if (number == null) dart.nullFailed(I[108], 1070, 24, "number");
      this.writeAsciiString(dart.toString(number));
    }
    writeAsciiString(string) {
      if (string == null) dart.nullFailed(I[108], 1075, 32, "string");
      for (let i = 0; i < string.length; i = i + 1) {
        let char = string[$codeUnitAt](i);
        if (!(char <= 127)) dart.assertFailed(null, I[108], 1080, 14, "char <= 0x7f");
        this.writeByte(char);
      }
    }
    writeString(string) {
      if (string == null) dart.nullFailed(I[108], 1085, 27, "string");
      this.writeStringSlice(string, 0, string.length);
    }
    writeStringSlice(string, start, end) {
      if (string == null) dart.nullFailed(I[108], 1089, 32, "string");
      if (start == null) dart.nullFailed(I[108], 1089, 44, "start");
      if (end == null) dart.nullFailed(I[108], 1089, 55, "end");
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let char = string[$codeUnitAt](i);
        if (char <= 127) {
          this.writeByte(char);
        } else {
          if ((char & 63488) === 55296) {
            if (char < 56320 && dart.notNull(i) + 1 < dart.notNull(end)) {
              let nextChar = string[$codeUnitAt](dart.notNull(i) + 1);
              if ((nextChar & 64512) === 56320) {
                char = 65536 + ((char & 1023) << 10) + (nextChar & 1023);
                this.writeFourByteCharCode(char);
                i = dart.notNull(i) + 1;
                continue;
              }
            }
            this.writeMultiByteCharCode(65533);
            continue;
          }
          this.writeMultiByteCharCode(char);
        }
      }
    }
    writeCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[108], 1120, 26, "charCode");
      if (dart.notNull(charCode) <= 127) {
        this.writeByte(charCode);
        return;
      }
      this.writeMultiByteCharCode(charCode);
    }
    writeMultiByteCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[108], 1128, 35, "charCode");
      if (dart.notNull(charCode) <= 2047) {
        this.writeByte((192 | charCode[$rightShift](6)) >>> 0);
        this.writeByte(128 | dart.notNull(charCode) & 63);
        return;
      }
      if (dart.notNull(charCode) <= 65535) {
        this.writeByte((224 | charCode[$rightShift](12)) >>> 0);
        this.writeByte(128 | dart.notNull(charCode) >> 6 & 63);
        this.writeByte(128 | dart.notNull(charCode) & 63);
        return;
      }
      this.writeFourByteCharCode(charCode);
    }
    writeFourByteCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[108], 1143, 34, "charCode");
      if (!(dart.notNull(charCode) <= 1114111)) dart.assertFailed(null, I[108], 1144, 12, "charCode <= 0x10ffff");
      this.writeByte((240 | charCode[$rightShift](18)) >>> 0);
      this.writeByte(128 | dart.notNull(charCode) >> 12 & 63);
      this.writeByte(128 | dart.notNull(charCode) >> 6 & 63);
      this.writeByte(128 | dart.notNull(charCode) & 63);
    }
    writeByte(byte) {
      let t$36155, t$36154, t$36153, t$36153$;
      if (byte == null) dart.nullFailed(I[108], 1151, 22, "byte");
      if (!(dart.notNull(byte) <= 255)) dart.assertFailed(null, I[108], 1152, 12, "byte <= 0xff");
      if (this.index == this.buffer[$length]) {
        t$36153 = this.buffer;
        t$36154 = 0;
        t$36155 = this.index;
        this.addChunk(t$36153, t$36154, t$36155);
        this.buffer = _native_typed_data.NativeUint8List.new(this.bufferSize);
        this.index = 0;
      }
      this.buffer[$_set]((t$36153$ = this.index, this.index = dart.notNull(t$36153$) + 1, t$36153$), byte);
    }
  };
  (convert._JsonUtf8Stringifier.new = function(toEncodable, bufferSize, addChunk) {
    if (bufferSize == null) dart.nullFailed(I[108], 1028, 45, "bufferSize");
    if (addChunk == null) dart.nullFailed(I[108], 1028, 62, "addChunk");
    this.index = 0;
    this.bufferSize = bufferSize;
    this.addChunk = addChunk;
    this.buffer = _native_typed_data.NativeUint8List.new(bufferSize);
    dart.global.Object.getPrototypeOf(convert._JsonUtf8Stringifier).new.call(this, toEncodable);
    ;
  }).prototype = convert._JsonUtf8Stringifier.prototype;
  dart.addRtiResources(convert._JsonUtf8Stringifier, ["convert|_JsonUtf8Stringifier"]);
  dart.setMethodSignature(convert._JsonUtf8Stringifier, () => dart.global.Object.setPrototypeOf({
    flush: T$.VoidTovoid(),
    writeNumber: T$2.numTovoid(),
    writeAsciiString: T$.StringTovoid(),
    writeString: T$.StringTovoid(),
    writeStringSlice: T$2.StringAndintAndintTovoid(),
    writeCharCode: T$.intTovoid(),
    writeMultiByteCharCode: T$.intTovoid(),
    writeFourByteCharCode: T$.intTovoid(),
    writeByte: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._JsonUtf8Stringifier))));
  dart.setStaticMethodSignature(convert._JsonUtf8Stringifier, () => ['stringify']);
  dart.setGetterSignature(convert._JsonUtf8Stringifier, () => dart.global.Object.setPrototypeOf({[_partialResult]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(convert._JsonUtf8Stringifier))));
  dart.setLibraryUri(convert._JsonUtf8Stringifier, I[41]);
  dart.setFieldSignature(convert._JsonUtf8Stringifier, () => dart.global.Object.setPrototypeOf({
    bufferSize: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    addChunk: {type: T$2.Uint8ListAndintAndintTovoid(), isConst: false, isFinal: true},
    buffer: {type: T$.Uint8List(), isConst: false, isFinal: false, libraryUri: I[43]},
    index: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonUtf8Stringifier))));
  const _JsonUtf8Stringifier__JsonPrettyPrintMixin$36 = class _JsonUtf8Stringifier__JsonPrettyPrintMixin extends convert._JsonUtf8Stringifier {};
  (_JsonUtf8Stringifier__JsonPrettyPrintMixin$36.new = function(toEncodable, bufferSize, addChunk) {
    convert._JsonPrettyPrintMixin[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(_JsonUtf8Stringifier__JsonPrettyPrintMixin$36).new.call(this, toEncodable, bufferSize, addChunk);
  }).prototype = _JsonUtf8Stringifier__JsonPrettyPrintMixin$36.prototype;
  dart.applyMixin(_JsonUtf8Stringifier__JsonPrettyPrintMixin$36, convert._JsonPrettyPrintMixin);
  convert._JsonUtf8StringifierPretty = class _JsonUtf8StringifierPretty extends _JsonUtf8Stringifier__JsonPrettyPrintMixin$36 {
    static ['_#new#tearOff'](toEncodable, indent, bufferSize, addChunk) {
      if (indent == null) dart.nullFailed(I[108], 1166, 68, "indent");
      if (bufferSize == null) dart.nullFailed(I[108], 1167, 11, "bufferSize");
      if (addChunk == null) dart.nullFailed(I[108], 1167, 28, "addChunk");
      return new convert._JsonUtf8StringifierPretty.new(toEncodable, indent, bufferSize, addChunk);
    }
    writeIndentation(count) {
      if (count == null) dart.nullFailed(I[108], 1170, 29, "count");
      let indent = this.indent;
      let indentLength = indent[$length];
      if (indentLength === 1) {
        let char = indent[$_get](0);
        while (dart.notNull(count) > 0) {
          this.writeByte(char);
          count = dart.notNull(count) - 1;
        }
        return;
      }
      while (dart.notNull(count) > 0) {
        count = dart.notNull(count) - 1;
        let end = dart.notNull(this.index) + dart.notNull(indentLength);
        if (end <= dart.notNull(this.buffer[$length])) {
          this.buffer[$setRange](this.index, end, indent);
          this.index = end;
        } else {
          for (let i = 0; i < dart.notNull(indentLength); i = i + 1) {
            this.writeByte(indent[$_get](i));
          }
        }
      }
    }
  };
  (convert._JsonUtf8StringifierPretty.new = function(toEncodable, indent, bufferSize, addChunk) {
    if (indent == null) dart.nullFailed(I[108], 1166, 68, "indent");
    if (bufferSize == null) dart.nullFailed(I[108], 1167, 11, "bufferSize");
    if (addChunk == null) dart.nullFailed(I[108], 1167, 28, "addChunk");
    this.indent = indent;
    dart.global.Object.getPrototypeOf(convert._JsonUtf8StringifierPretty).new.call(this, toEncodable, bufferSize, addChunk);
    ;
  }).prototype = convert._JsonUtf8StringifierPretty.prototype;
  dart.addRtiResources(convert._JsonUtf8StringifierPretty, ["convert|_JsonUtf8StringifierPretty"]);
  dart.setMethodSignature(convert._JsonUtf8StringifierPretty, () => dart.global.Object.setPrototypeOf({writeIndentation: T$.intTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert._JsonUtf8StringifierPretty))));
  dart.setLibraryUri(convert._JsonUtf8StringifierPretty, I[41]);
  dart.setFieldSignature(convert._JsonUtf8StringifierPretty, () => dart.global.Object.setPrototypeOf({indent: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._JsonUtf8StringifierPretty))));
  var _allowInvalid$1 = dart.privateName(convert, "Latin1Codec._allowInvalid");
  convert.Latin1Codec = class Latin1Codec extends convert.Encoding {
    get [_allowInvalid$]() {
      return this[_allowInvalid$1];
    }
    set [_allowInvalid$](value) {
      super[_allowInvalid$] = value;
    }
    static ['_#new#tearOff'](opts) {
      let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : false;
      if (allowInvalid == null) dart.nullFailed(I[109], 35, 27, "allowInvalid");
      return new convert.Latin1Codec.new({allowInvalid: allowInvalid});
    }
    get name() {
      return "iso-8859-1";
    }
    encode(source) {
      T$.String()[_as](source);
      if (source == null) dart.nullFailed(I[109], 40, 27, "source");
      return this.encoder.convert(source);
    }
    decode(bytes, opts) {
      let t$36153;
      T$.ListOfint()[_as](bytes);
      if (bytes == null) dart.nullFailed(I[109], 50, 27, "bytes");
      let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : null;
      if (dart.test((t$36153 = allowInvalid, t$36153 == null ? this[_allowInvalid$] : t$36153))) {
        return (C[142] || CT.C142).convert(bytes);
      } else {
        return (C[143] || CT.C143).convert(bytes);
      }
    }
    get encoder() {
      return C[144] || CT.C144;
    }
    get decoder() {
      return dart.test(this[_allowInvalid$]) ? C[142] || CT.C142 : C[143] || CT.C143;
    }
  };
  (convert.Latin1Codec.new = function(opts) {
    let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : false;
    if (allowInvalid == null) dart.nullFailed(I[109], 35, 27, "allowInvalid");
    this[_allowInvalid$1] = allowInvalid;
    this.$ti = this.$ti || T$2.Latin1Codec();
    dart.global.Object.getPrototypeOf(convert.Latin1Codec).new.call(this);
    ;
  }).prototype = convert.Latin1Codec.prototype;
  dart.addRtiResources(convert.Latin1Codec, ["convert|Latin1Codec"]);
  dart.setMethodSignature(convert.Latin1Codec, () => dart.global.Object.setPrototypeOf({
    encode: T$2.ObjectNToUint8List(),
    decode: T$2.ObjectN__ToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.Latin1Codec))));
  dart.setGetterSignature(convert.Latin1Codec, () => dart.global.Object.setPrototypeOf({
    name: T$.String(),
    encoder: T$2.Latin1Encoder(),
    decoder: T$2.Latin1Decoder()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(convert.Latin1Codec))));
  dart.setLibraryUri(convert.Latin1Codec, I[41]);
  dart.setFieldSignature(convert.Latin1Codec, () => dart.global.Object.setPrototypeOf({[_allowInvalid$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert.Latin1Codec))));
  convert.Latin1Encoder = class Latin1Encoder extends convert._UnicodeSubsetEncoder {
    static ['_#new#tearOff']() {
      return new convert.Latin1Encoder.new();
    }
  };
  (convert.Latin1Encoder.new = function() {
    this.$ti = this.$ti || T$2.Latin1Encoder();
    dart.global.Object.getPrototypeOf(convert.Latin1Encoder).new.call(this, 255);
    ;
  }).prototype = convert.Latin1Encoder.prototype;
  dart.addRtiResources(convert.Latin1Encoder, ["convert|Latin1Encoder"]);
  dart.setLibraryUri(convert.Latin1Encoder, I[41]);
  convert.Latin1Decoder = class Latin1Decoder extends convert._UnicodeSubsetDecoder {
    static ['_#new#tearOff'](opts) {
      let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : false;
      if (allowInvalid == null) dart.nullFailed(I[109], 117, 29, "allowInvalid");
      return new convert.Latin1Decoder.new({allowInvalid: allowInvalid});
    }
    startChunkedConversion(sink) {
      T$2.SinkOfString()[_as](sink);
      if (sink == null) dart.nullFailed(I[109], 124, 58, "sink");
      let stringSink = null;
      if (T$2.StringConversionSink()[_is](sink)) {
        stringSink = sink;
      } else {
        stringSink = new convert._StringAdapterSink.new(sink);
      }
      if (!dart.test(this[_allowInvalid$])) return new convert._Latin1DecoderSink.new(stringSink);
      return new convert._Latin1AllowInvalidDecoderSink.new(stringSink);
    }
  };
  (convert.Latin1Decoder.new = function(opts) {
    let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : false;
    if (allowInvalid == null) dart.nullFailed(I[109], 117, 29, "allowInvalid");
    this.$ti = this.$ti || T$2.Latin1Decoder();
    dart.global.Object.getPrototypeOf(convert.Latin1Decoder).new.call(this, allowInvalid, 255);
    ;
  }).prototype = convert.Latin1Decoder.prototype;
  dart.addRtiResources(convert.Latin1Decoder, ["convert|Latin1Decoder"]);
  dart.setMethodSignature(convert.Latin1Decoder, () => dart.global.Object.setPrototypeOf({startChunkedConversion: T$2.ObjectNToByteConversionSink()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert.Latin1Decoder))));
  dart.setLibraryUri(convert.Latin1Decoder, I[41]);
  var _addSliceToSink = dart.privateName(convert, "_addSliceToSink");
  convert._Latin1DecoderSink = class _Latin1DecoderSink extends convert.ByteConversionSink {
    static ['_#new#tearOff'](_sink) {
      return new convert._Latin1DecoderSink.new(_sink);
    }
    close() {
      dart.nullCheck(this[_sink$0]).close();
      this[_sink$0] = null;
    }
    add(source) {
      T$.ListOfint()[_as](source);
      if (source == null) dart.nullFailed(I[109], 146, 22, "source");
      this.addSlice(source, 0, source[$length], false);
    }
    [_addSliceToSink](source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[109], 150, 34, "source");
      if (start == null) dart.nullFailed(I[109], 150, 46, "start");
      if (end == null) dart.nullFailed(I[109], 150, 57, "end");
      if (isLast == null) dart.nullFailed(I[109], 150, 67, "isLast");
      dart.nullCheck(this[_sink$0]).add(core.String.fromCharCodes(source, start, end));
      if (dart.test(isLast)) this.close();
    }
    addSlice(source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[109], 159, 27, "source");
      if (start == null) dart.nullFailed(I[109], 159, 39, "start");
      if (end == null) dart.nullFailed(I[109], 159, 50, "end");
      if (isLast == null) dart.nullFailed(I[109], 159, 60, "isLast");
      core.RangeError.checkValidRange(start, end, source[$length]);
      if (start == end) return;
      if (!T$.Uint8List()[_is](source)) {
        convert._Latin1DecoderSink._checkValidLatin1(source, start, end);
      }
      this[_addSliceToSink](source, start, end, isLast);
    }
    static _checkValidLatin1(source, start, end) {
      if (source == null) dart.nullFailed(I[109], 171, 43, "source");
      if (start == null) dart.nullFailed(I[109], 171, 55, "start");
      if (end == null) dart.nullFailed(I[109], 171, 66, "end");
      let mask = 0;
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        mask = (mask | dart.notNull(source[$_get](i))) >>> 0;
      }
      if (mask >= 0 && mask <= 255) {
        return;
      }
      convert._Latin1DecoderSink._reportInvalidLatin1(source, start, end);
    }
    static _reportInvalidLatin1(source, start, end) {
      if (source == null) dart.nullFailed(I[109], 182, 46, "source");
      if (start == null) dart.nullFailed(I[109], 182, 58, "start");
      if (end == null) dart.nullFailed(I[109], 182, 69, "end");
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let char = source[$_get](i);
        if (dart.notNull(char) < 0 || dart.notNull(char) > 255) {
          dart.throw(new core.FormatException.new("Source contains non-Latin-1 characters.", source, i));
        }
      }
      if (!false) dart.assertFailed(null, I[109], 192, 12, "false");
    }
  };
  (convert._Latin1DecoderSink.new = function(_sink) {
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._Latin1DecoderSink).new.call(this);
    ;
  }).prototype = convert._Latin1DecoderSink.prototype;
  dart.addRtiResources(convert._Latin1DecoderSink, ["convert|_Latin1DecoderSink"]);
  dart.setMethodSignature(convert._Latin1DecoderSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    add: T$.ObjectNTovoid(),
    [_addSliceToSink]: T$2.ListOfintAndintAndint__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Latin1DecoderSink))));
  dart.setStaticMethodSignature(convert._Latin1DecoderSink, () => ['_checkValidLatin1', '_reportInvalidLatin1']);
  dart.setLibraryUri(convert._Latin1DecoderSink, I[41]);
  dart.setFieldSignature(convert._Latin1DecoderSink, () => dart.global.Object.setPrototypeOf({[_sink$0]: {type: T$2.StringConversionSinkN(), isConst: false, isFinal: false, libraryUri: I[41]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._Latin1DecoderSink))));
  convert._Latin1AllowInvalidDecoderSink = class _Latin1AllowInvalidDecoderSink extends convert._Latin1DecoderSink {
    static ['_#new#tearOff'](sink) {
      if (sink == null) dart.nullFailed(I[109], 197, 55, "sink");
      return new convert._Latin1AllowInvalidDecoderSink.new(sink);
    }
    addSlice(source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[109], 199, 27, "source");
      if (start == null) dart.nullFailed(I[109], 199, 39, "start");
      if (end == null) dart.nullFailed(I[109], 199, 50, "end");
      if (isLast == null) dart.nullFailed(I[109], 199, 60, "isLast");
      core.RangeError.checkValidRange(start, end, source[$length]);
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let char = source[$_get](i);
        if (dart.notNull(char) > 255 || dart.notNull(char) < 0) {
          if (dart.notNull(i) > dart.notNull(start)) this[_addSliceToSink](source, start, i, false);
          this[_addSliceToSink](C[145] || CT.C145, 0, 1, false);
          start = dart.notNull(i) + 1;
        }
      }
      if (dart.notNull(start) < dart.notNull(end)) {
        this[_addSliceToSink](source, start, end, isLast);
      }
      if (dart.test(isLast)) {
        this.close();
      }
    }
  };
  (convert._Latin1AllowInvalidDecoderSink.new = function(sink) {
    if (sink == null) dart.nullFailed(I[109], 197, 55, "sink");
    dart.global.Object.getPrototypeOf(convert._Latin1AllowInvalidDecoderSink).new.call(this, sink);
    ;
  }).prototype = convert._Latin1AllowInvalidDecoderSink.prototype;
  dart.addRtiResources(convert._Latin1AllowInvalidDecoderSink, ["convert|_Latin1AllowInvalidDecoderSink"]);
  dart.setLibraryUri(convert._Latin1AllowInvalidDecoderSink, I[41]);
  convert.LineSplitter = class LineSplitter extends G.StreamTransformerBaseOfString$String() {
    static ['_#new#tearOff']() {
      return new convert.LineSplitter.new();
    }
    static split(lines, start = 0, end = null) {
      if (lines == null) dart.nullFailed(I[110], 47, 40, "lines");
      if (start == null) dart.nullFailed(I[110], 47, 52, "start");
      end = core.RangeError.checkValidRange(start, end, lines.length);
      return new convert._LineSplitIterable.new(lines, start, end);
    }
    convert(data) {
      if (data == null) dart.nullFailed(I[110], 52, 31, "data");
      let lines = G.JSArrayOfString().of([]);
      let end = data.length;
      let sliceStart = 0;
      let char = 0;
      for (let i = 0; i < end; i = i + 1) {
        let previousChar = char;
        char = data[$codeUnitAt](i);
        if (char !== 13) {
          if (char !== 10) continue;
          if (previousChar === 13) {
            sliceStart = i + 1;
            continue;
          }
        }
        lines[$add](data[$substring](sliceStart, i));
        sliceStart = i + 1;
      }
      if (sliceStart < end) {
        lines[$add](data[$substring](sliceStart, end));
      }
      return lines;
    }
    startChunkedConversion(sink) {
      if (sink == null) dart.nullFailed(I[110], 76, 60, "sink");
      return new convert._LineSplitterSink.new(T$2.StringConversionSink()[_is](sink) ? sink : new convert._StringAdapterSink.new(sink));
    }
    bind(stream) {
      T$2.StreamOfString()[_as](stream);
      if (stream == null) dart.nullFailed(I[110], 81, 38, "stream");
      return G.StreamOfString().eventTransformed(stream, dart.fn(sink => {
        if (sink == null) dart.nullFailed(I[110], 83, 36, "sink");
        return new convert._LineSplitterEventSink.new(sink);
      }, T$2.EventSinkOfStringTo_LineSplitterEventSink()));
    }
  };
  (convert.LineSplitter.new = function() {
    this.$ti = this.$ti || T$2.LineSplitter();
    dart.global.Object.getPrototypeOf(convert.LineSplitter).new.call(this);
    ;
  }).prototype = convert.LineSplitter.prototype;
  dart.addRtiResources(convert.LineSplitter, ["convert|LineSplitter"]);
  dart.setMethodSignature(convert.LineSplitter, () => dart.global.Object.setPrototypeOf({
    convert: T$2.StringToListOfString(),
    startChunkedConversion: T$2.SinkOfStringToStringConversionSink(),
    bind: T$2.ObjectNToStreamOfString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.LineSplitter))));
  dart.setStaticMethodSignature(convert.LineSplitter, () => ['split']);
  dart.setLibraryUri(convert.LineSplitter, I[41]);
  var _carry = dart.privateName(convert, "_carry");
  var _multiCarry = dart.privateName(convert, "_multiCarry");
  var _skipLeadingLF = dart.privateName(convert, "_skipLeadingLF");
  var _addLines = dart.privateName(convert, "_addLines");
  var _useCarry = dart.privateName(convert, "_useCarry");
  var _addCarry = dart.privateName(convert, "_addCarry");
  convert._LineSplitterSink = class _LineSplitterSink extends convert.StringConversionSink {
    static ['_#new#tearOff'](_sink) {
      if (_sink == null) dart.nullFailed(I[110], 118, 26, "_sink");
      return new convert._LineSplitterSink.new(_sink);
    }
    addSlice(chunk, start, end, isLast) {
      if (chunk == null) dart.nullFailed(I[110], 120, 24, "chunk");
      if (start == null) dart.nullFailed(I[110], 120, 35, "start");
      if (end == null) dart.nullFailed(I[110], 120, 46, "end");
      if (isLast == null) dart.nullFailed(I[110], 120, 56, "isLast");
      end = core.RangeError.checkValidRange(start, end, chunk.length);
      if (dart.notNull(start) < dart.notNull(end)) {
        if (dart.test(this[_skipLeadingLF])) {
          if (chunk[$codeUnitAt](start) === 10) {
            start = dart.notNull(start) + 1;
          }
          this[_skipLeadingLF] = false;
        }
        this[_addLines](chunk, start, end, isLast);
      }
      if (dart.test(isLast)) this.close();
    }
    close() {
      let carry = this[_carry];
      if (carry != null) {
        this[_sink$0].add(this[_useCarry](carry, ""));
      }
      this[_sink$0].close();
    }
    [_addLines](lines, start, end, isLast) {
      if (lines == null) dart.nullFailed(I[110], 144, 25, "lines");
      if (start == null) dart.nullFailed(I[110], 144, 36, "start");
      if (end == null) dart.nullFailed(I[110], 144, 47, "end");
      if (isLast == null) dart.nullFailed(I[110], 144, 57, "isLast");
      let sliceStart = start;
      let char = 0;
      let carry = this[_carry];
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let previousChar = char;
        char = lines[$codeUnitAt](i);
        if (char !== 13) {
          if (char !== 10) continue;
          if (previousChar === 13) {
            sliceStart = dart.notNull(i) + 1;
            continue;
          }
        }
        let slice = lines[$substring](sliceStart, i);
        if (carry != null) {
          slice = this[_useCarry](carry, slice);
          carry = null;
        }
        this[_sink$0].add(slice);
        sliceStart = dart.notNull(i) + 1;
      }
      if (dart.notNull(sliceStart) < dart.notNull(end)) {
        let endSlice = lines[$substring](sliceStart, end);
        if (dart.test(isLast)) {
          if (carry != null) {
            endSlice = this[_useCarry](carry, endSlice);
          }
          this[_sink$0].add(endSlice);
          return;
        }
        if (carry == null) {
          this[_carry] = endSlice;
        } else {
          this[_addCarry](carry, endSlice);
        }
      } else {
        this[_skipLeadingLF] = char === 13;
      }
    }
    [_addCarry](existingCarry, newCarry) {
      let t$36153;
      if (existingCarry == null) dart.nullFailed(I[110], 200, 25, "existingCarry");
      if (newCarry == null) dart.nullFailed(I[110], 200, 47, "newCarry");
      if (!(existingCarry == this[_carry])) dart.assertFailed(null, I[110], 201, 12, "existingCarry == _carry");
      if (!newCarry[$isNotEmpty]) dart.assertFailed(null, I[110], 202, 12, "newCarry.isNotEmpty");
      let multiCarry = (t$36153 = this[_multiCarry], t$36153 == null ? this[_multiCarry] = new core.StringBuffer.new() : t$36153);
      if (existingCarry[$isNotEmpty]) {
        if (!dart.test(multiCarry.isEmpty)) dart.assertFailed(null, I[110], 205, 14, "multiCarry.isEmpty");
        multiCarry.write(existingCarry);
        this[_carry] = "";
      }
      multiCarry.write(newCarry);
    }
    [_useCarry](carry, continuation) {
      if (carry == null) dart.nullFailed(I[110], 220, 27, "carry");
      if (continuation == null) dart.nullFailed(I[110], 220, 41, "continuation");
      if (!(carry == this[_carry])) dart.assertFailed(null, I[110], 221, 12, "carry == _carry");
      this[_carry] = null;
      if (carry[$isNotEmpty]) {
        return dart.notNull(carry) + dart.notNull(continuation);
      }
      let multiCarry = dart.nullCheck(this[_multiCarry]);
      multiCarry.write(continuation);
      let result = dart.toString(multiCarry);
      multiCarry.clear();
      return result;
    }
  };
  (convert._LineSplitterSink.new = function(_sink) {
    if (_sink == null) dart.nullFailed(I[110], 118, 26, "_sink");
    this[_carry] = null;
    this[_multiCarry] = null;
    this[_skipLeadingLF] = false;
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._LineSplitterSink).new.call(this);
    ;
  }).prototype = convert._LineSplitterSink.prototype;
  dart.addRtiResources(convert._LineSplitterSink, ["convert|_LineSplitterSink"]);
  dart.setMethodSignature(convert._LineSplitterSink, () => dart.global.Object.setPrototypeOf({
    addSlice: T$2.StringAndintAndint__Tovoid(),
    close: T$.VoidTovoid(),
    [_addLines]: T$2.StringAndintAndint__Tovoid(),
    [_addCarry]: T$2.StringAndStringTovoid(),
    [_useCarry]: T$.StringAndStringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._LineSplitterSink))));
  dart.setLibraryUri(convert._LineSplitterSink, I[41]);
  dart.setFieldSignature(convert._LineSplitterSink, () => dart.global.Object.setPrototypeOf({
    [_sink$0]: {type: T$2.StringConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_carry]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_multiCarry]: {type: T$2.StringBufferN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_skipLeadingLF]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._LineSplitterSink))));
  convert._LineSplitterEventSink = class _LineSplitterEventSink extends convert._LineSplitterSink {
    static ['_#new#tearOff'](eventSink) {
      if (eventSink == null) dart.nullFailed(I[110], 240, 44, "eventSink");
      return new convert._LineSplitterEventSink.new(eventSink);
    }
    addError(o, stackTrace = null) {
      if (o == null) dart.nullFailed(I[110], 244, 24, "o");
      this[_eventSink].addError(o, stackTrace);
    }
  };
  (convert._LineSplitterEventSink.new = function(eventSink) {
    if (eventSink == null) dart.nullFailed(I[110], 240, 44, "eventSink");
    this[_eventSink] = eventSink;
    dart.global.Object.getPrototypeOf(convert._LineSplitterEventSink).new.call(this, new convert._StringAdapterSink.new(eventSink));
    ;
  }).prototype = convert._LineSplitterEventSink.prototype;
  dart.addRtiResources(convert._LineSplitterEventSink, ["convert|_LineSplitterEventSink", "async|EventSink", "core|Sink"]);
  dart.setMethodSignature(convert._LineSplitterEventSink, () => dart.global.Object.setPrototypeOf({addError: T$1.ObjectAndStackTraceNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert._LineSplitterEventSink))));
  dart.setLibraryUri(convert._LineSplitterEventSink, I[41]);
  dart.setFieldSignature(convert._LineSplitterEventSink, () => dart.global.Object.setPrototypeOf({[_eventSink]: {type: T$2.EventSinkOfString(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._LineSplitterEventSink))));
  var _source$5 = dart.privateName(convert, "_source");
  var _start$1 = dart.privateName(convert, "_start");
  var _end$ = dart.privateName(convert, "_end");
  convert._LineSplitIterable = class _LineSplitIterable extends G.IterableOfString() {
    static ['_#new#tearOff'](_source, _start, _end) {
      if (_source == null) dart.nullFailed(I[110], 252, 27, "_source");
      if (_start == null) dart.nullFailed(I[110], 252, 41, "_start");
      if (_end == null) dart.nullFailed(I[110], 252, 54, "_end");
      return new convert._LineSplitIterable.new(_source, _start, _end);
    }
    get iterator() {
      return new convert._LineSplitIterator.new(this[_source$5], this[_start$1], this[_end$]);
    }
  };
  (convert._LineSplitIterable.new = function(_source, _start, _end) {
    if (_source == null) dart.nullFailed(I[110], 252, 27, "_source");
    if (_start == null) dart.nullFailed(I[110], 252, 41, "_start");
    if (_end == null) dart.nullFailed(I[110], 252, 54, "_end");
    this[_source$5] = _source;
    this[_start$1] = _start;
    this[_end$] = _end;
    this.$ti = this.$ti || T$2._LineSplitIterable();
    dart.global.Object.getPrototypeOf(convert._LineSplitIterable).new.call(this);
    ;
  }).prototype = convert._LineSplitIterable.prototype;
  dart.addRtiResources(convert._LineSplitIterable, ["convert|_LineSplitIterable"]);
  dart.setGetterSignature(convert._LineSplitIterable, () => dart.global.Object.setPrototypeOf({
    iterator: T$2.IteratorOfString(),
    [$iterator]: T$2.IteratorOfString()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(convert._LineSplitIterable))));
  dart.setLibraryUri(convert._LineSplitIterable, I[41]);
  dart.setFieldSignature(convert._LineSplitIterable, () => dart.global.Object.setPrototypeOf({
    [_source$5]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_start$1]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_end$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._LineSplitIterable))));
  dart.defineExtensionAccessors(convert._LineSplitIterable, ['iterator']);
  var _lineStart = dart.privateName(convert, "_lineStart");
  var _lineEnd = dart.privateName(convert, "_lineEnd");
  var _current$2 = dart.privateName(convert, "_current");
  convert._LineSplitIterator = class _LineSplitIterator extends core.Object {
    static ['_#new#tearOff'](_source, _start, _end) {
      if (_source == null) dart.nullFailed(I[110], 263, 27, "_source");
      if (_start == null) dart.nullFailed(I[110], 263, 41, "_start");
      if (_end == null) dart.nullFailed(I[110], 263, 54, "_end");
      return new convert._LineSplitIterator.new(_source, _start, _end);
    }
    moveNext() {
      this[_current$2] = null;
      this[_lineStart] = this[_start$1];
      this[_lineEnd] = -1;
      let eolLength = 1;
      for (let i = this[_start$1]; dart.notNull(i) < dart.notNull(this[_end$]); i = dart.notNull(i) + 1) {
        let char = this[_source$5][$codeUnitAt](i);
        if (char !== 13) {
          if (char !== 10) continue;
        } else {
          if (dart.notNull(i) + 1 < dart.notNull(this[_end$]) && this[_source$5][$codeUnitAt](dart.notNull(i) + 1) === 10) {
            eolLength = 2;
          }
        }
        this[_lineEnd] = i;
        this[_start$1] = dart.notNull(i) + eolLength;
        return true;
      }
      if (dart.notNull(this[_start$1]) < dart.notNull(this[_end$])) {
        this[_lineEnd] = this[_end$];
        this[_start$1] = this[_end$];
        return true;
      }
      this[_start$1] = this[_end$];
      return false;
    }
    get current() {
      let t$36153;
      t$36153 = this[_current$2];
      return t$36153 == null ? this[_current$2] = dart.notNull(this[_lineEnd]) >= 0 ? this[_source$5][$substring](this[_lineStart], this[_lineEnd]) : dart.throw(new core.StateError.new("No element")) : t$36153;
    }
  };
  (convert._LineSplitIterator.new = function(_source, _start, _end) {
    if (_source == null) dart.nullFailed(I[110], 263, 27, "_source");
    if (_start == null) dart.nullFailed(I[110], 263, 41, "_start");
    if (_end == null) dart.nullFailed(I[110], 263, 54, "_end");
    this[_lineStart] = 0;
    this[_lineEnd] = -1;
    this[_current$2] = null;
    this[_source$5] = _source;
    this[_start$1] = _start;
    this[_end$] = _end;
    ;
  }).prototype = convert._LineSplitIterator.prototype;
  dart.addRtiResources(convert._LineSplitIterator, ["convert|_LineSplitIterator", "core|Iterator"]);
  dart.setMethodSignature(convert._LineSplitIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(convert._LineSplitIterator))));
  dart.setGetterSignature(convert._LineSplitIterator, () => dart.global.Object.setPrototypeOf({current: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(convert._LineSplitIterator))));
  dart.setLibraryUri(convert._LineSplitIterator, I[41]);
  dart.setFieldSignature(convert._LineSplitIterator, () => dart.global.Object.setPrototypeOf({
    [_source$5]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_end$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_start$1]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lineStart]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lineEnd]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_current$2]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._LineSplitIterator))));
  convert.ClosableStringSink = class ClosableStringSink extends core.Object {
    static ['_#fromStringSink#tearOff'](sink, onClose) {
      if (sink == null) dart.nullFailed(I[100], 64, 56, "sink");
      if (onClose == null) dart.nullFailed(I[100], 64, 67, "onClose");
      return new convert._ClosableStringSink.new(sink, onClose);
    }
  };
  (convert.ClosableStringSink[dart.mixinNew] = function() {
  }).prototype = convert.ClosableStringSink.prototype;
  dart.addRtiResources(convert.ClosableStringSink, ["convert|ClosableStringSink", "core|StringSink"]);
  dart.setStaticMethodSignature(convert.ClosableStringSink, () => ['fromStringSink']);
  dart.setLibraryUri(convert.ClosableStringSink, I[41]);
  convert._ClosableStringSink = class _ClosableStringSink extends core.Object {
    static ['_#new#tearOff'](_sink, _callback) {
      if (_sink == null) dart.nullFailed(I[100], 77, 28, "_sink");
      if (_callback == null) dart.nullFailed(I[100], 77, 40, "_callback");
      return new convert._ClosableStringSink.new(_sink, _callback);
    }
    close() {
      this[_callback$]();
    }
    writeCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[100], 83, 26, "charCode");
      this[_sink$0].writeCharCode(charCode);
    }
    write(o) {
      this[_sink$0].write(o);
    }
    writeln(o = "") {
      this[_sink$0].writeln(o);
    }
    writeAll(objects, separator = "") {
      if (objects == null) dart.nullFailed(I[100], 95, 26, "objects");
      if (separator == null) dart.nullFailed(I[100], 95, 43, "separator");
      this[_sink$0].writeAll(objects, separator);
    }
  };
  (convert._ClosableStringSink.new = function(_sink, _callback) {
    if (_sink == null) dart.nullFailed(I[100], 77, 28, "_sink");
    if (_callback == null) dart.nullFailed(I[100], 77, 40, "_callback");
    this[_sink$0] = _sink;
    this[_callback$] = _callback;
    ;
  }).prototype = convert._ClosableStringSink.prototype;
  dart.addRtiResources(convert._ClosableStringSink, ["convert|_ClosableStringSink", "convert|ClosableStringSink", "core|StringSink"]);
  dart.setMethodSignature(convert._ClosableStringSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    writeCharCode: T$.intTovoid(),
    write: T$.ObjectNTovoid(),
    writeln: T$0.ObjectNTovoid$1(),
    writeAll: T$2.IterableAndStringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._ClosableStringSink))));
  dart.setLibraryUri(convert._ClosableStringSink, I[41]);
  dart.setFieldSignature(convert._ClosableStringSink, () => dart.global.Object.setPrototypeOf({
    [_callback$]: {type: T$.VoidTovoid(), isConst: false, isFinal: true},
    [_sink$0]: {type: T$2.StringSink(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._ClosableStringSink))));
  var _flush = dart.privateName(convert, "_flush");
  convert._StringConversionSinkAsStringSinkAdapter = class _StringConversionSinkAsStringSinkAdapter extends core.Object {
    static ['_#new#tearOff'](_chunkedSink) {
      if (_chunkedSink == null) dart.nullFailed(I[100], 110, 49, "_chunkedSink");
      return new convert._StringConversionSinkAsStringSinkAdapter.new(_chunkedSink);
    }
    close() {
      if (dart.test(this[_buffer$].isNotEmpty)) this[_flush]();
      this[_chunkedSink$].close();
    }
    writeCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[100], 118, 26, "charCode");
      this[_buffer$].writeCharCode(charCode);
      if (dart.notNull(this[_buffer$].length) > 16) this[_flush]();
    }
    write(o) {
      if (dart.test(this[_buffer$].isNotEmpty)) this[_flush]();
      this[_chunkedSink$].add(dart.toString(o));
    }
    writeln(o = "") {
      this[_buffer$].writeln(o);
      if (dart.notNull(this[_buffer$].length) > 16) this[_flush]();
    }
    writeAll(objects, separator = "") {
      if (objects == null) dart.nullFailed(I[100], 133, 26, "objects");
      if (separator == null) dart.nullFailed(I[100], 133, 43, "separator");
      if (dart.test(this[_buffer$].isNotEmpty)) this[_flush]();
      let iterator = objects[$iterator];
      if (!dart.test(iterator.moveNext())) return;
      if (separator[$isEmpty]) {
        do {
          this[_chunkedSink$].add(dart.toString(iterator.current));
        } while (dart.test(iterator.moveNext()));
      } else {
        this[_chunkedSink$].add(dart.toString(iterator.current));
        while (dart.test(iterator.moveNext())) {
          this.write(separator);
          this[_chunkedSink$].add(dart.toString(iterator.current));
        }
      }
    }
    [_flush]() {
      let accumulated = dart.toString(this[_buffer$]);
      this[_buffer$].clear();
      this[_chunkedSink$].add(accumulated);
    }
  };
  (convert._StringConversionSinkAsStringSinkAdapter.new = function(_chunkedSink) {
    if (_chunkedSink == null) dart.nullFailed(I[100], 110, 49, "_chunkedSink");
    this[_chunkedSink$] = _chunkedSink;
    this[_buffer$] = new core.StringBuffer.new();
    ;
  }).prototype = convert._StringConversionSinkAsStringSinkAdapter.prototype;
  dart.addRtiResources(convert._StringConversionSinkAsStringSinkAdapter, ["convert|_StringConversionSinkAsStringSinkAdapter", "convert|ClosableStringSink", "core|StringSink"]);
  dart.setMethodSignature(convert._StringConversionSinkAsStringSinkAdapter, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    writeCharCode: T$.intTovoid(),
    write: T$.ObjectNTovoid(),
    writeln: T$0.ObjectNTovoid$1(),
    writeAll: T$2.IterableAndStringTovoid(),
    [_flush]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._StringConversionSinkAsStringSinkAdapter))));
  dart.setLibraryUri(convert._StringConversionSinkAsStringSinkAdapter, I[41]);
  dart.setFieldSignature(convert._StringConversionSinkAsStringSinkAdapter, () => dart.global.Object.setPrototypeOf({
    [_buffer$]: {type: T$2.StringBuffer(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_chunkedSink$]: {type: T$2.StringConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._StringConversionSinkAsStringSinkAdapter))));
  dart.setStaticFieldSignature(convert._StringConversionSinkAsStringSinkAdapter, () => ['_MIN_STRING_SIZE']);
  dart.defineLazy(convert._StringConversionSinkAsStringSinkAdapter, {
    /*convert._StringConversionSinkAsStringSinkAdapter._MIN_STRING_SIZE*/get _MIN_STRING_SIZE() {
      return 16;
    }
  }, false);
  convert._StringCallbackSink = class _StringCallbackSink extends G._StringSinkConversionSinkOfStringBuffer() {
    static ['_#new#tearOff'](_callback) {
      if (_callback == null) dart.nullFailed(I[100], 204, 28, "_callback");
      return new convert._StringCallbackSink.new(_callback);
    }
    close() {
      let t$36153;
      let accumulated = dart.toString(this[_stringSink$]);
      this[_stringSink$].clear();
      t$36153 = accumulated;
      this[_callback$](t$36153);
    }
    asUtf8Sink(allowMalformed) {
      if (allowMalformed == null) dart.nullFailed(I[100], 212, 38, "allowMalformed");
      return new convert._Utf8StringSinkAdapter.new(this, this[_stringSink$], allowMalformed);
    }
  };
  (convert._StringCallbackSink.new = function(_callback) {
    if (_callback == null) dart.nullFailed(I[100], 204, 28, "_callback");
    this[_callback$] = _callback;
    this.$ti = this.$ti || T$2._StringCallbackSink();
    dart.global.Object.getPrototypeOf(convert._StringCallbackSink).new.call(this, new core.StringBuffer.new());
    ;
  }).prototype = convert._StringCallbackSink.prototype;
  dart.addRtiResources(convert._StringCallbackSink, ["convert|_StringCallbackSink"]);
  dart.setLibraryUri(convert._StringCallbackSink, I[41]);
  dart.setFieldSignature(convert._StringCallbackSink, () => dart.global.Object.setPrototypeOf({[_callback$]: {type: T$.StringTovoid(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._StringCallbackSink))));
  convert._StringAdapterSink = class _StringAdapterSink extends convert.StringConversionSink {
    static ['_#new#tearOff'](_sink) {
      if (_sink == null) dart.nullFailed(I[100], 225, 27, "_sink");
      return new convert._StringAdapterSink.new(_sink);
    }
    add(str) {
      T$.String()[_as](str);
      if (str == null) dart.nullFailed(I[100], 227, 19, "str");
      this[_sink$0].add(str);
    }
    addSlice(str, start, end, isLast) {
      if (str == null) dart.nullFailed(I[100], 231, 24, "str");
      if (start == null) dart.nullFailed(I[100], 231, 33, "start");
      if (end == null) dart.nullFailed(I[100], 231, 44, "end");
      if (isLast == null) dart.nullFailed(I[100], 231, 54, "isLast");
      if (start === 0 && end === str.length) {
        this.add(str);
      } else {
        this.add(str[$substring](start, end));
      }
      if (dart.test(isLast)) this.close();
    }
    close() {
      this[_sink$0].close();
    }
  };
  (convert._StringAdapterSink.new = function(_sink) {
    if (_sink == null) dart.nullFailed(I[100], 225, 27, "_sink");
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._StringAdapterSink).new.call(this);
    ;
  }).prototype = convert._StringAdapterSink.prototype;
  dart.addRtiResources(convert._StringAdapterSink, ["convert|_StringAdapterSink"]);
  dart.setMethodSignature(convert._StringAdapterSink, () => dart.global.Object.setPrototypeOf({
    addSlice: T$2.StringAndintAndint__Tovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._StringAdapterSink))));
  dart.setLibraryUri(convert._StringAdapterSink, I[41]);
  dart.setFieldSignature(convert._StringAdapterSink, () => dart.global.Object.setPrototypeOf({[_sink$0]: {type: T$2.SinkOfString(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._StringAdapterSink))));
  convert._Utf8StringSinkAdapter = class _Utf8StringSinkAdapter extends convert.ByteConversionSink {
    static ['_#new#tearOff'](_sink, _stringSink, allowMalformed) {
      if (_sink == null) dart.nullFailed(I[100], 253, 31, "_sink");
      if (_stringSink == null) dart.nullFailed(I[100], 253, 43, "_stringSink");
      if (allowMalformed == null) dart.nullFailed(I[100], 253, 61, "allowMalformed");
      return new convert._Utf8StringSinkAdapter.new(_sink, _stringSink, allowMalformed);
    }
    close() {
      this[_decoder].flush(this[_stringSink$]);
      this[_sink$0].close();
    }
    add(chunk) {
      T$.ListOfint()[_as](chunk);
      if (chunk == null) dart.nullFailed(I[100], 261, 22, "chunk");
      this.addSlice(chunk, 0, chunk[$length], false);
    }
    addSlice(codeUnits, startIndex, endIndex, isLast) {
      if (codeUnits == null) dart.nullFailed(I[100], 266, 17, "codeUnits");
      if (startIndex == null) dart.nullFailed(I[100], 266, 32, "startIndex");
      if (endIndex == null) dart.nullFailed(I[100], 266, 48, "endIndex");
      if (isLast == null) dart.nullFailed(I[100], 266, 63, "isLast");
      this[_stringSink$].write(this[_decoder].convertChunked(codeUnits, startIndex, endIndex));
      if (dart.test(isLast)) this.close();
    }
  };
  (convert._Utf8StringSinkAdapter.new = function(_sink, _stringSink, allowMalformed) {
    if (_sink == null) dart.nullFailed(I[100], 253, 31, "_sink");
    if (_stringSink == null) dart.nullFailed(I[100], 253, 43, "_stringSink");
    if (allowMalformed == null) dart.nullFailed(I[100], 253, 61, "allowMalformed");
    this[_sink$0] = _sink;
    this[_stringSink$] = _stringSink;
    this[_decoder] = new convert._Utf8Decoder.new(allowMalformed);
    dart.global.Object.getPrototypeOf(convert._Utf8StringSinkAdapter).new.call(this);
    ;
  }).prototype = convert._Utf8StringSinkAdapter.prototype;
  dart.addRtiResources(convert._Utf8StringSinkAdapter, ["convert|_Utf8StringSinkAdapter"]);
  dart.setMethodSignature(convert._Utf8StringSinkAdapter, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    add: T$.ObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Utf8StringSinkAdapter))));
  dart.setLibraryUri(convert._Utf8StringSinkAdapter, I[41]);
  dart.setFieldSignature(convert._Utf8StringSinkAdapter, () => dart.global.Object.setPrototypeOf({
    [_decoder]: {type: T$2._Utf8Decoder(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_sink$0]: {type: T$2.SinkOfObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_stringSink$]: {type: T$2.StringSink(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._Utf8StringSinkAdapter))));
  convert._Utf8ConversionSink = class _Utf8ConversionSink extends convert.ByteConversionSink {
    static ['_#new#tearOff'](sink, allowMalformed) {
      if (sink == null) dart.nullFailed(I[100], 280, 44, "sink");
      if (allowMalformed == null) dart.nullFailed(I[100], 280, 55, "allowMalformed");
      return new convert._Utf8ConversionSink.new(sink, allowMalformed);
    }
    static ['_#_#tearOff'](_chunkedSink, stringBuffer, allowMalformed) {
      if (_chunkedSink == null) dart.nullFailed(I[100], 284, 12, "_chunkedSink");
      if (stringBuffer == null) dart.nullFailed(I[100], 284, 39, "stringBuffer");
      if (allowMalformed == null) dart.nullFailed(I[100], 284, 58, "allowMalformed");
      return new convert._Utf8ConversionSink.__(_chunkedSink, stringBuffer, allowMalformed);
    }
    close() {
      this[_decoder].flush(this[_buffer$]);
      if (dart.test(this[_buffer$].isNotEmpty)) {
        let accumulated = dart.toString(this[_buffer$]);
        this[_buffer$].clear();
        this[_chunkedSink$].addSlice(accumulated, 0, accumulated.length, true);
      } else {
        this[_chunkedSink$].close();
      }
    }
    add(chunk) {
      T$.ListOfint()[_as](chunk);
      if (chunk == null) dart.nullFailed(I[100], 299, 22, "chunk");
      this.addSlice(chunk, 0, chunk[$length], false);
    }
    addSlice(chunk, startIndex, endIndex, isLast) {
      if (chunk == null) dart.nullFailed(I[100], 303, 27, "chunk");
      if (startIndex == null) dart.nullFailed(I[100], 303, 38, "startIndex");
      if (endIndex == null) dart.nullFailed(I[100], 303, 54, "endIndex");
      if (isLast == null) dart.nullFailed(I[100], 303, 69, "isLast");
      this[_buffer$].write(this[_decoder].convertChunked(chunk, startIndex, endIndex));
      if (dart.test(this[_buffer$].isNotEmpty)) {
        let accumulated = dart.toString(this[_buffer$]);
        this[_chunkedSink$].addSlice(accumulated, 0, accumulated.length, isLast);
        this[_buffer$].clear();
        return;
      }
      if (dart.test(isLast)) this.close();
    }
  };
  (convert._Utf8ConversionSink.new = function(sink, allowMalformed) {
    if (sink == null) dart.nullFailed(I[100], 280, 44, "sink");
    if (allowMalformed == null) dart.nullFailed(I[100], 280, 55, "allowMalformed");
    convert._Utf8ConversionSink.__.call(this, sink, new core.StringBuffer.new(), allowMalformed);
  }).prototype = convert._Utf8ConversionSink.prototype;
  (convert._Utf8ConversionSink.__ = function(_chunkedSink, stringBuffer, allowMalformed) {
    if (_chunkedSink == null) dart.nullFailed(I[100], 284, 12, "_chunkedSink");
    if (stringBuffer == null) dart.nullFailed(I[100], 284, 39, "stringBuffer");
    if (allowMalformed == null) dart.nullFailed(I[100], 284, 58, "allowMalformed");
    this[_chunkedSink$] = _chunkedSink;
    this[_decoder] = new convert._Utf8Decoder.new(allowMalformed);
    this[_buffer$] = stringBuffer;
    dart.global.Object.getPrototypeOf(convert._Utf8ConversionSink).new.call(this);
    ;
  }).prototype = convert._Utf8ConversionSink.prototype;
  dart.addRtiResources(convert._Utf8ConversionSink, ["convert|_Utf8ConversionSink"]);
  dart.setMethodSignature(convert._Utf8ConversionSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    add: T$.ObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Utf8ConversionSink))));
  dart.setLibraryUri(convert._Utf8ConversionSink, I[41]);
  dart.setFieldSignature(convert._Utf8ConversionSink, () => dart.global.Object.setPrototypeOf({
    [_decoder]: {type: T$2._Utf8Decoder(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_chunkedSink$]: {type: T$2.StringConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_buffer$]: {type: T$2.StringBuffer(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._Utf8ConversionSink))));
  var _allowMalformed = dart.privateName(convert, "Utf8Codec._allowMalformed");
  var _allowMalformed$ = dart.privateName(convert, "_allowMalformed");
  var Utf8Decoder__allowMalformed = dart.privateName(convert, "Utf8Decoder._allowMalformed");
  convert.Utf8Codec = class Utf8Codec extends convert.Encoding {
    get [_allowMalformed$]() {
      return this[_allowMalformed];
    }
    set [_allowMalformed$](value) {
      super[_allowMalformed$] = value;
    }
    static ['_#new#tearOff'](opts) {
      let allowMalformed = opts && 'allowMalformed' in opts ? opts.allowMalformed : false;
      if (allowMalformed == null) dart.nullFailed(I[111], 40, 25, "allowMalformed");
      return new convert.Utf8Codec.new({allowMalformed: allowMalformed});
    }
    get name() {
      return "utf-8";
    }
    decode(codeUnits, opts) {
      let t$36153;
      T$.ListOfint()[_as](codeUnits);
      if (codeUnits == null) dart.nullFailed(I[111], 58, 27, "codeUnits");
      let allowMalformed = opts && 'allowMalformed' in opts ? opts.allowMalformed : null;
      let decoder = dart.test((t$36153 = allowMalformed, t$36153 == null ? this[_allowMalformed$] : t$36153)) ? C[146] || CT.C146 : C[147] || CT.C147;
      return decoder.convert(codeUnits);
    }
    encode(string) {
      T$.String()[_as](string);
      if (string == null) dart.nullFailed(I[111], 67, 27, "string");
      return (C[148] || CT.C148).convert(string);
    }
    get encoder() {
      return C[148] || CT.C148;
    }
    get decoder() {
      return dart.test(this[_allowMalformed$]) ? C[146] || CT.C146 : C[147] || CT.C147;
    }
  };
  (convert.Utf8Codec.new = function(opts) {
    let allowMalformed = opts && 'allowMalformed' in opts ? opts.allowMalformed : false;
    if (allowMalformed == null) dart.nullFailed(I[111], 40, 25, "allowMalformed");
    this[_allowMalformed] = allowMalformed;
    this.$ti = this.$ti || T$2.Utf8Codec();
    dart.global.Object.getPrototypeOf(convert.Utf8Codec).new.call(this);
    ;
  }).prototype = convert.Utf8Codec.prototype;
  dart.addRtiResources(convert.Utf8Codec, ["convert|Utf8Codec"]);
  dart.setMethodSignature(convert.Utf8Codec, () => dart.global.Object.setPrototypeOf({
    decode: T$2.ObjectN__ToString$2(),
    encode: T$2.ObjectNToUint8List()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.Utf8Codec))));
  dart.setGetterSignature(convert.Utf8Codec, () => dart.global.Object.setPrototypeOf({
    name: T$.String(),
    encoder: T$2.Utf8Encoder(),
    decoder: T$2.Utf8Decoder()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(convert.Utf8Codec))));
  dart.setLibraryUri(convert.Utf8Codec, I[41]);
  dart.setFieldSignature(convert.Utf8Codec, () => dart.global.Object.setPrototypeOf({[_allowMalformed$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert.Utf8Codec))));
  var _fillBuffer = dart.privateName(convert, "_fillBuffer");
  var _writeReplacementCharacter = dart.privateName(convert, "_writeReplacementCharacter");
  convert.Utf8Encoder = class Utf8Encoder extends G.ConverterOfString$ListOfint() {
    static ['_#new#tearOff']() {
      return new convert.Utf8Encoder.new();
    }
    convert(string, start = 0, end = null) {
      T$.String()[_as](string);
      if (string == null) dart.nullFailed(I[111], 101, 28, "string");
      if (start == null) dart.nullFailed(I[111], 101, 41, "start");
      let stringLength = string.length;
      end = core.RangeError.checkValidRange(start, end, stringLength);
      let length = dart.notNull(end) - dart.notNull(start);
      if (length === 0) return _native_typed_data.NativeUint8List.new(0);
      let encoder = new convert._Utf8Encoder.withBufferSize(length * 3);
      let endPosition = encoder[_fillBuffer](string, start, end);
      if (!(dart.notNull(endPosition) >= dart.notNull(end) - 1)) dart.assertFailed(null, I[111], 110, 12, "endPosition >= end - 1");
      if (endPosition != end) {
        let lastCodeUnit = string[$codeUnitAt](dart.notNull(end) - 1);
        if (!dart.test(convert._isLeadSurrogate(lastCodeUnit))) dart.assertFailed(null, I[111], 116, 14, "_isLeadSurrogate(lastCodeUnit)");
        encoder[_writeReplacementCharacter]();
      }
      return encoder[_buffer$][$sublist](0, encoder[_bufferIndex]);
    }
    startChunkedConversion(sink) {
      T$2.SinkOfListOfint()[_as](sink);
      if (sink == null) dart.nullFailed(I[111], 127, 63, "sink");
      return new convert._Utf8EncoderSink.new(T$2.ByteConversionSink()[_is](sink) ? sink : new convert._ByteAdapterSink.new(sink));
    }
    bind(stream) {
      T$2.StreamOfString()[_as](stream);
      if (stream == null) dart.nullFailed(I[111], 133, 41, "stream");
      return super.bind(stream);
    }
  };
  (convert.Utf8Encoder.new = function() {
    this.$ti = this.$ti || T$2.Utf8Encoder();
    dart.global.Object.getPrototypeOf(convert.Utf8Encoder).new.call(this);
    ;
  }).prototype = convert.Utf8Encoder.prototype;
  dart.addRtiResources(convert.Utf8Encoder, ["convert|Utf8Encoder"]);
  dart.setMethodSignature(convert.Utf8Encoder, () => dart.global.Object.setPrototypeOf({
    convert: T$2.ObjectNAndintAndintNToUint8List(),
    startChunkedConversion: T$2.ObjectNToStringConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.Utf8Encoder))));
  dart.setLibraryUri(convert.Utf8Encoder, I[41]);
  var _writeSurrogate = dart.privateName(convert, "_writeSurrogate");
  convert._Utf8Encoder = class _Utf8Encoder extends core.Object {
    static ['_#new#tearOff']() {
      return new convert._Utf8Encoder.new();
    }
    static ['_#withBufferSize#tearOff'](bufferSize) {
      if (bufferSize == null) dart.nullFailed(I[111], 147, 35, "bufferSize");
      return new convert._Utf8Encoder.withBufferSize(bufferSize);
    }
    static _createBuffer(size) {
      if (size == null) dart.nullFailed(I[111], 151, 38, "size");
      return _native_typed_data.NativeUint8List.new(size);
    }
    [_writeReplacementCharacter]() {
      let t$36153, t$36153$, t$36153$0;
      this[_buffer$][$_set]((t$36153 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36153) + 1, t$36153), 239);
      this[_buffer$][$_set]((t$36153$ = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36153$) + 1, t$36153$), 191);
      this[_buffer$][$_set]((t$36153$0 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36153$0) + 1, t$36153$0), 189);
    }
    [_writeSurrogate](leadingSurrogate, nextCodeUnit) {
      let t$36153, t$36153$, t$36153$0, t$36153$1;
      if (leadingSurrogate == null) dart.nullFailed(I[111], 169, 28, "leadingSurrogate");
      if (nextCodeUnit == null) dart.nullFailed(I[111], 169, 50, "nextCodeUnit");
      if (dart.test(convert._isTailSurrogate(nextCodeUnit))) {
        let rune = convert._combineSurrogatePair(leadingSurrogate, nextCodeUnit);
        if (!(dart.notNull(rune) > 65535)) dart.assertFailed(null, I[111], 174, 14, "rune > _THREE_BYTE_LIMIT");
        if (!(dart.notNull(rune) <= 1114111)) dart.assertFailed(null, I[111], 175, 14, "rune <= _FOUR_BYTE_LIMIT");
        this[_buffer$][$_set]((t$36153 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36153) + 1, t$36153), (240 | rune[$rightShift](18)) >>> 0);
        this[_buffer$][$_set]((t$36153$ = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36153$) + 1, t$36153$), 128 | dart.notNull(rune) >> 12 & 63);
        this[_buffer$][$_set]((t$36153$0 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36153$0) + 1, t$36153$0), 128 | dart.notNull(rune) >> 6 & 63);
        this[_buffer$][$_set]((t$36153$1 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36153$1) + 1, t$36153$1), 128 | dart.notNull(rune) & 63);
        return true;
      } else {
        this[_writeReplacementCharacter]();
        return false;
      }
    }
    [_fillBuffer](str, start, end) {
      let t$36154, t$36154$, t$36154$0, t$36154$1, t$36154$2, t$36154$3;
      if (str == null) dart.nullFailed(I[111], 195, 26, "str");
      if (start == null) dart.nullFailed(I[111], 195, 35, "start");
      if (end == null) dart.nullFailed(I[111], 195, 46, "end");
      if (start != end && dart.test(convert._isLeadSurrogate(str[$codeUnitAt](dart.notNull(end) - 1)))) {
        end = dart.notNull(end) - 1;
      }
      let stringIndex = null;
      for (let t$36153 = stringIndex = start; dart.notNull(stringIndex) < dart.notNull(end); stringIndex = dart.notNull(stringIndex) + 1) {
        let codeUnit = str[$codeUnitAt](stringIndex);
        if (codeUnit <= 127) {
          if (dart.notNull(this[_bufferIndex]) >= dart.notNull(this[_buffer$][$length])) break;
          this[_buffer$][$_set]((t$36154 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36154) + 1, t$36154), codeUnit);
        } else if (dart.test(convert._isLeadSurrogate(codeUnit))) {
          if (dart.notNull(this[_bufferIndex]) + 4 > dart.notNull(this[_buffer$][$length])) break;
          let nextCodeUnit = str[$codeUnitAt](dart.notNull(stringIndex) + 1);
          let wasCombined = this[_writeSurrogate](codeUnit, nextCodeUnit);
          if (dart.test(wasCombined)) stringIndex = dart.notNull(stringIndex) + 1;
        } else if (dart.test(convert._isTailSurrogate(codeUnit))) {
          if (dart.notNull(this[_bufferIndex]) + 3 > dart.notNull(this[_buffer$][$length])) break;
          this[_writeReplacementCharacter]();
        } else {
          let rune = codeUnit;
          if (rune <= 2047) {
            if (dart.notNull(this[_bufferIndex]) + 1 >= dart.notNull(this[_buffer$][$length])) break;
            this[_buffer$][$_set]((t$36154$ = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36154$) + 1, t$36154$), (192 | rune[$rightShift](6)) >>> 0);
            this[_buffer$][$_set]((t$36154$0 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36154$0) + 1, t$36154$0), 128 | rune & 63);
          } else {
            if (!(rune <= 65535)) dart.assertFailed(null, I[111], 226, 18, "rune <= _THREE_BYTE_LIMIT");
            if (dart.notNull(this[_bufferIndex]) + 2 >= dart.notNull(this[_buffer$][$length])) break;
            this[_buffer$][$_set]((t$36154$1 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36154$1) + 1, t$36154$1), (224 | rune[$rightShift](12)) >>> 0);
            this[_buffer$][$_set]((t$36154$2 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36154$2) + 1, t$36154$2), 128 | rune >> 6 & 63);
            this[_buffer$][$_set]((t$36154$3 = this[_bufferIndex], this[_bufferIndex] = dart.notNull(t$36154$3) + 1, t$36154$3), 128 | rune & 63);
          }
        }
      }
      return stringIndex;
    }
  };
  (convert._Utf8Encoder.new = function() {
    convert._Utf8Encoder.withBufferSize.call(this, 1024);
  }).prototype = convert._Utf8Encoder.prototype;
  (convert._Utf8Encoder.withBufferSize = function(bufferSize) {
    if (bufferSize == null) dart.nullFailed(I[111], 147, 35, "bufferSize");
    this[_carry] = 0;
    this[_bufferIndex] = 0;
    this[_buffer$] = convert._Utf8Encoder._createBuffer(bufferSize);
    ;
  }).prototype = convert._Utf8Encoder.prototype;
  dart.addRtiResources(convert._Utf8Encoder, ["convert|_Utf8Encoder"]);
  dart.setMethodSignature(convert._Utf8Encoder, () => dart.global.Object.setPrototypeOf({
    [_writeReplacementCharacter]: T$.VoidTovoid(),
    [_writeSurrogate]: T$.intAndintTobool(),
    [_fillBuffer]: T$2.StringAndintAndintToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Utf8Encoder))));
  dart.setStaticMethodSignature(convert._Utf8Encoder, () => ['_createBuffer']);
  dart.setLibraryUri(convert._Utf8Encoder, I[41]);
  dart.setFieldSignature(convert._Utf8Encoder, () => dart.global.Object.setPrototypeOf({
    [_carry]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_bufferIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_buffer$]: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._Utf8Encoder))));
  dart.setStaticFieldSignature(convert._Utf8Encoder, () => ['_DEFAULT_BYTE_BUFFER_SIZE']);
  dart.defineLazy(convert._Utf8Encoder, {
    /*convert._Utf8Encoder._DEFAULT_BYTE_BUFFER_SIZE*/get _DEFAULT_BYTE_BUFFER_SIZE() {
      return 1024;
    }
  }, false);
  const _Utf8Encoder_StringConversionSink$36 = class _Utf8Encoder_StringConversionSink extends convert._Utf8Encoder {};
  (_Utf8Encoder_StringConversionSink$36.new = function() {
    convert.StringConversionSink.new.call(this);
    dart.global.Object.getPrototypeOf(_Utf8Encoder_StringConversionSink$36).new.call(this);
  }).prototype = _Utf8Encoder_StringConversionSink$36.prototype;
  (_Utf8Encoder_StringConversionSink$36.withBufferSize = function(bufferSize) {
    convert.StringConversionSink.new.call(this);
    dart.global.Object.getPrototypeOf(_Utf8Encoder_StringConversionSink$36).withBufferSize.call(this, bufferSize);
  }).prototype = _Utf8Encoder_StringConversionSink$36.prototype;
  dart.applyMixin(_Utf8Encoder_StringConversionSink$36, convert.StringConversionSink);
  convert._Utf8EncoderSink = class _Utf8EncoderSink extends _Utf8Encoder_StringConversionSink$36 {
    static ['_#new#tearOff'](_sink) {
      if (_sink == null) dart.nullFailed(I[111], 243, 25, "_sink");
      return new convert._Utf8EncoderSink.new(_sink);
    }
    close() {
      if (this[_carry] !== 0) {
        this.addSlice("", 0, 0, true);
        return;
      }
      this[_sink$0].close();
    }
    addSlice(str, start, end, isLast) {
      if (str == null) dart.nullFailed(I[111], 254, 24, "str");
      if (start == null) dart.nullFailed(I[111], 254, 33, "start");
      if (end == null) dart.nullFailed(I[111], 254, 44, "end");
      if (isLast == null) dart.nullFailed(I[111], 254, 54, "isLast");
      this[_bufferIndex] = 0;
      if (start == end && !dart.test(isLast)) {
        return;
      }
      if (this[_carry] !== 0) {
        let nextCodeUnit = 0;
        if (start != end) {
          nextCodeUnit = str[$codeUnitAt](start);
        } else {
          if (!dart.test(isLast)) dart.assertFailed(null, I[111], 266, 16, "isLast");
        }
        let wasCombined = this[_writeSurrogate](this[_carry], nextCodeUnit);
        if (!(!dart.test(wasCombined) || start != end)) dart.assertFailed(null, I[111], 270, 14, "!wasCombined || start != end");
        if (dart.test(wasCombined)) start = dart.notNull(start) + 1;
        this[_carry] = 0;
      }
      do {
        start = this[_fillBuffer](str, start, end);
        let isLastSlice = dart.test(isLast) && start == end;
        if (start === dart.notNull(end) - 1 && dart.test(convert._isLeadSurrogate(str[$codeUnitAt](start)))) {
          if (dart.test(isLast) && dart.notNull(this[_bufferIndex]) < dart.notNull(this[_buffer$][$length]) - 3) {
            this[_writeReplacementCharacter]();
          } else {
            this[_carry] = str[$codeUnitAt](start);
          }
          start = dart.notNull(start) + 1;
        }
        this[_sink$0].addSlice(this[_buffer$], 0, this[_bufferIndex], isLastSlice);
        this[_bufferIndex] = 0;
      } while (dart.notNull(start) < dart.notNull(end));
      if (dart.test(isLast)) this.close();
    }
  };
  (convert._Utf8EncoderSink.new = function(_sink) {
    if (_sink == null) dart.nullFailed(I[111], 243, 25, "_sink");
    this[_sink$0] = _sink;
    dart.global.Object.getPrototypeOf(convert._Utf8EncoderSink).new.call(this);
    ;
  }).prototype = convert._Utf8EncoderSink.prototype;
  dart.addRtiResources(convert._Utf8EncoderSink, ["convert|_Utf8EncoderSink"]);
  dart.setMethodSignature(convert._Utf8EncoderSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    addSlice: T$2.StringAndintAndint__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Utf8EncoderSink))));
  dart.setLibraryUri(convert._Utf8EncoderSink, I[41]);
  dart.setFieldSignature(convert._Utf8EncoderSink, () => dart.global.Object.setPrototypeOf({[_sink$0]: {type: T$2.ByteConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert._Utf8EncoderSink))));
  const _allowMalformed$0 = Utf8Decoder__allowMalformed;
  convert.Utf8Decoder = class Utf8Decoder extends G.ConverterOfListOfint$String() {
    get [_allowMalformed$]() {
      return this[_allowMalformed$0];
    }
    set [_allowMalformed$](value) {
      super[_allowMalformed$] = value;
    }
    static ['_#new#tearOff'](opts) {
      let allowMalformed = opts && 'allowMalformed' in opts ? opts.allowMalformed : false;
      if (allowMalformed == null) dart.nullFailed(I[111], 337, 27, "allowMalformed");
      return new convert.Utf8Decoder.new({allowMalformed: allowMalformed});
    }
    convert(codeUnits, start = 0, end = null) {
      T$.ListOfint()[_as](codeUnits);
      if (codeUnits == null) dart.nullFailed(I[111], 348, 28, "codeUnits");
      if (start == null) dart.nullFailed(I[111], 348, 44, "start");
      return new convert._Utf8Decoder.new(this[_allowMalformed$]).convertSingle(codeUnits, start, end);
    }
    startChunkedConversion(sink) {
      T$2.SinkOfString()[_as](sink);
      if (sink == null) dart.nullFailed(I[111], 355, 58, "sink");
      let stringSink = null;
      if (T$2.StringConversionSink()[_is](sink)) {
        stringSink = sink;
      } else {
        stringSink = new convert._StringAdapterSink.new(sink);
      }
      return stringSink.asUtf8Sink(this[_allowMalformed$]);
    }
    bind(stream) {
      T$2.StreamOfListOfint()[_as](stream);
      if (stream == null) dart.nullFailed(I[111], 366, 41, "stream");
      return super.bind(stream);
    }
    fuse(T, next) {
      if (next == null) dart.nullFailed(I[112], 13, 56, "next");
      return super.fuse(T, next);
    }
  };
  (convert.Utf8Decoder.new = function(opts) {
    let allowMalformed = opts && 'allowMalformed' in opts ? opts.allowMalformed : false;
    if (allowMalformed == null) dart.nullFailed(I[111], 337, 27, "allowMalformed");
    this[_allowMalformed$0] = allowMalformed;
    this.$ti = this.$ti || T$2.Utf8Decoder();
    dart.global.Object.getPrototypeOf(convert.Utf8Decoder).new.call(this);
    ;
  }).prototype = convert.Utf8Decoder.prototype;
  dart.addRtiResources(convert.Utf8Decoder, ["convert|Utf8Decoder"]);
  dart.setMethodSignature(convert.Utf8Decoder, () => dart.global.Object.setPrototypeOf({
    convert: T$2.ObjectNAndintAndintNToString(),
    startChunkedConversion: T$2.ObjectNToByteConversionSink(),
    fuse: T$2.ConverterOfString$TToConverterOfListOfint$T()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert.Utf8Decoder))));
  dart.setMethodsDefaultTypeArgSignature(convert.Utf8Decoder, () => dart.global.Object.setPrototypeOf({fuse: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(convert.Utf8Decoder))));
  dart.setLibraryUri(convert.Utf8Decoder, I[41]);
  dart.setFieldSignature(convert.Utf8Decoder, () => dart.global.Object.setPrototypeOf({[_allowMalformed$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(convert.Utf8Decoder))));
  var _charOrIndex = dart.privateName(convert, "_charOrIndex");
  var _decodeRecursive = dart.privateName(convert, "_decodeRecursive");
  var _convertGeneral = dart.privateName(convert, "_convertGeneral");
  convert._Utf8Decoder = class _Utf8Decoder extends core.Object {
    [_convertGeneral](codeUnits, start, maybeEnd, single) {
      if (codeUnits == null) dart.nullFailed(I[112], 38, 17, "codeUnits");
      if (start == null) dart.nullFailed(I[112], 38, 32, "start");
      if (single == null) dart.nullFailed(I[112], 38, 59, "single");
      let end = core.RangeError.checkValidRange(start, maybeEnd, codeUnits[$length]);
      if (start == end) return "";
      let bytes = null;
      let errorOffset = null;
      if (codeUnits instanceof Uint8Array) {
        let casted = codeUnits;
        bytes = casted;
        errorOffset = 0;
      } else {
        bytes = convert._Utf8Decoder._makeNativeUint8List(codeUnits, start, end);
        errorOffset = start;
        end = dart.notNull(end) - dart.notNull(start);
        start = 0;
      }
      if (dart.test(single) && dart.notNull(end) - dart.notNull(start) >= 15) {
        let result = convert._Utf8Decoder._convertInterceptedUint8List(this.allowMalformed, bytes, start, end);
        if (result != null) {
          if (!dart.test(this.allowMalformed)) return result;
          if (result.indexOf("�") < 0) {
            return result;
          }
        }
      }
      let result = this[_decodeRecursive](bytes, start, end, single);
      if (dart.test(convert._Utf8Decoder.isErrorState(this[_state$]))) {
        let message = convert._Utf8Decoder.errorDescription(this[_state$]);
        this[_state$] = 0;
        dart.throw(new core.FormatException.new(message, codeUnits, dart.notNull(errorOffset) + dart.notNull(this[_charOrIndex])));
      }
      return result;
    }
    [_decodeRecursive](bytes, start, end, single) {
      if (bytes == null) dart.nullFailed(I[112], 94, 37, "bytes");
      if (start == null) dart.nullFailed(I[112], 94, 48, "start");
      if (end == null) dart.nullFailed(I[112], 94, 59, "end");
      if (single == null) dart.nullFailed(I[112], 94, 69, "single");
      if (dart.notNull(end) - dart.notNull(start) > 1000) {
        let mid = ((dart.notNull(start) + dart.notNull(end)) / 2)[$truncate]();
        let s1 = this[_decodeRecursive](bytes, start, mid, false);
        if (dart.test(convert._Utf8Decoder.isErrorState(this[_state$]))) return s1;
        let s2 = this[_decodeRecursive](bytes, mid, end, single);
        return dart.notNull(s1) + dart.notNull(s2);
      }
      return this.decodeGeneral(bytes, start, end, single);
    }
    static _makeNativeUint8List(codeUnits, start, end) {
      if (codeUnits == null) dart.nullFailed(I[112], 108, 17, "codeUnits");
      if (start == null) dart.nullFailed(I[112], 108, 32, "start");
      if (end == null) dart.nullFailed(I[112], 108, 43, "end");
      let length = dart.notNull(end) - dart.notNull(start);
      let bytes = length <= 4096 ? convert._Utf8Decoder._reusableBuffer : _native_typed_data.NativeUint8List.new(length);
      for (let i = 0; i < length; i = i + 1) {
        let b = codeUnits[$_get](dart.notNull(start) + i);
        if ((dart.notNull(b) & 255) !== b) {
          b = 255;
        }
        bytes[i] = b;
      }
      return bytes;
    }
    static _convertInterceptedUint8List(allowMalformed, codeUnits, start, end) {
      if (allowMalformed == null) dart.nullFailed(I[112], 131, 12, "allowMalformed");
      if (codeUnits == null) dart.nullFailed(I[112], 131, 44, "codeUnits");
      if (start == null) dart.nullFailed(I[112], 131, 59, "start");
      if (end == null) dart.nullFailed(I[112], 131, 70, "end");
      let decoder = dart.test(allowMalformed) ? convert._Utf8Decoder._decoderNonfatal : convert._Utf8Decoder._decoder;
      if (decoder == null) return null;
      if (0 === start && end == codeUnits[$length]) {
        return convert._Utf8Decoder._useTextDecoder(decoder, codeUnits);
      }
      return convert._Utf8Decoder._useTextDecoder(decoder, codeUnits.subarray(start, end));
    }
    static _useTextDecoder(decoder, codeUnits) {
      if (codeUnits == null) dart.nullFailed(I[112], 144, 59, "codeUnits");
      try {
        return decoder.decode(codeUnits);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e;
      }
      return null;
    }
    static isErrorState(state) {
      if (state == null) dart.nullFailed(I[111], 522, 32, "state");
      return (dart.notNull(state) & 1) !== 0;
    }
    static errorDescription(state) {
      if (state == null) dart.nullFailed(I[111], 524, 38, "state");
      switch (state) {
        case 65:
          {
            return "Missing extension byte";
          }
        case 67:
          {
            return "Unexpected extension byte";
          }
        case 69:
          {
            return "Invalid UTF-8 byte";
          }
        case 71:
          {
            return "Overlong encoding";
          }
        case 73:
          {
            return "Out of unicode range";
          }
        case 75:
          {
            return "Encoded surrogate";
          }
        case 77:
          {
            return "Unfinished UTF-8 octet sequence";
          }
        default:
          {
            return "";
          }
      }
    }
    static ['_#new#tearOff'](allowMalformed) {
      if (allowMalformed == null) dart.nullFailed(I[112], 25, 21, "allowMalformed");
      return new convert._Utf8Decoder.new(allowMalformed);
    }
    convertSingle(codeUnits, start, maybeEnd) {
      if (codeUnits == null) dart.nullFailed(I[112], 28, 34, "codeUnits");
      if (start == null) dart.nullFailed(I[112], 28, 49, "start");
      return this[_convertGeneral](codeUnits, start, maybeEnd, true);
    }
    convertChunked(codeUnits, start, maybeEnd) {
      if (codeUnits == null) dart.nullFailed(I[112], 33, 35, "codeUnits");
      if (start == null) dart.nullFailed(I[112], 33, 50, "start");
      return this[_convertGeneral](codeUnits, start, maybeEnd, false);
    }
    convertGeneral(codeUnits, start, maybeEnd, single) {
      if (codeUnits == null) dart.nullFailed(I[111], 552, 17, "codeUnits");
      if (start == null) dart.nullFailed(I[111], 552, 32, "start");
      if (single == null) dart.nullFailed(I[111], 552, 59, "single");
      let end = core.RangeError.checkValidRange(start, maybeEnd, codeUnits[$length]);
      if (start == end) return "";
      let bytes = null;
      let errorOffset = null;
      if (T$.Uint8List()[_is](codeUnits)) {
        bytes = codeUnits;
        errorOffset = 0;
      } else {
        bytes = convert._Utf8Decoder._makeUint8List(codeUnits, start, end);
        errorOffset = start;
        end = dart.notNull(end) - dart.notNull(start);
        start = 0;
      }
      let result = this.decodeGeneral(bytes, start, end, single);
      if (dart.test(convert._Utf8Decoder.isErrorState(this[_state$]))) {
        let message = convert._Utf8Decoder.errorDescription(this[_state$]);
        this[_state$] = 0;
        dart.throw(new core.FormatException.new(message, codeUnits, dart.notNull(errorOffset) + dart.notNull(this[_charOrIndex])));
      }
      return result;
    }
    flush(sink) {
      if (sink == null) dart.nullFailed(I[111], 583, 25, "sink");
      let state = this[_state$];
      this[_state$] = 0;
      if (dart.notNull(state) <= 32) {
        return;
      }
      if (dart.test(this.allowMalformed)) {
        sink.writeCharCode(65533);
      } else {
        dart.throw(new core.FormatException.new(convert._Utf8Decoder.errorDescription(77), null, null));
      }
    }
    decodeGeneral(bytes, start, end, single) {
      let t$36155, t$36155$, t$36155$0, t$36155$1;
      if (bytes == null) dart.nullFailed(I[111], 597, 34, "bytes");
      if (start == null) dart.nullFailed(I[111], 597, 45, "start");
      if (end == null) dart.nullFailed(I[111], 597, 56, "end");
      if (single == null) dart.nullFailed(I[111], 597, 66, "single");
      let typeTable = convert._Utf8Decoder.typeTable;
      let transitionTable = convert._Utf8Decoder.transitionTable;
      let state = this[_state$];
      let char = this[_charOrIndex];
      let buffer = new core.StringBuffer.new();
      let i = start;
      let byte = bytes[$_get]((t$36155 = i, i = dart.notNull(t$36155) + 1, t$36155));
      L1:
        while (true) {
          while (true) {
            let type = (typeTable[$codeUnitAt](byte) & 31) >>> 0;
            char = dart.notNull(state) <= 32 ? (dart.notNull(byte) & (61694)[$rightShift](type)) >>> 0 : (dart.notNull(byte) & 63 | dart.notNull(char) << 6 >>> 0) >>> 0;
            state = transitionTable[$codeUnitAt](dart.notNull(state) + type);
            if (state === 0) {
              buffer.writeCharCode(char);
              if (i == end) break L1;
              break;
            } else if (dart.test(convert._Utf8Decoder.isErrorState(state))) {
              if (dart.test(this.allowMalformed)) {
                switch (state) {
                  case 69:
                  case 67:
                    {
                      buffer.writeCharCode(65533);
                      break;
                    }
                  case 65:
                    {
                      buffer.writeCharCode(65533);
                      i = dart.notNull(i) - 1;
                      break;
                    }
                  default:
                    {
                      buffer.writeCharCode(65533);
                      buffer.writeCharCode(65533);
                      break;
                    }
                }
                state = 0;
              } else {
                this[_state$] = state;
                this[_charOrIndex] = dart.notNull(i) - 1;
                return "";
              }
            }
            if (i == end) break L1;
            byte = bytes[$_get]((t$36155$ = i, i = dart.notNull(t$36155$) + 1, t$36155$));
          }
          let markStart = i;
          byte = bytes[$_get]((t$36155$0 = i, i = dart.notNull(t$36155$0) + 1, t$36155$0));
          if (dart.notNull(byte) < 128) {
            let markEnd = end;
            while (dart.notNull(i) < dart.notNull(end)) {
              byte = bytes[$_get]((t$36155$1 = i, i = dart.notNull(t$36155$1) + 1, t$36155$1));
              if (dart.notNull(byte) >= 128) {
                markEnd = dart.notNull(i) - 1;
                break;
              }
            }
            if (!(dart.notNull(markStart) < dart.notNull(markEnd))) dart.assertFailed(null, I[111], 662, 16, "markStart < markEnd");
            if (dart.notNull(markEnd) - dart.notNull(markStart) < 20) {
              for (let m = markStart; dart.notNull(m) < dart.notNull(markEnd); m = dart.notNull(m) + 1) {
                buffer.writeCharCode(bytes[$_get](m));
              }
            } else {
              buffer.write(core.String.fromCharCodes(bytes, markStart, markEnd));
            }
            if (markEnd == end) break;
          }
        }
      if (dart.test(single) && dart.notNull(state) > 32) {
        if (dart.test(this.allowMalformed)) {
          buffer.writeCharCode(65533);
        } else {
          this[_state$] = 77;
          this[_charOrIndex] = end;
          return "";
        }
      }
      this[_state$] = state;
      this[_charOrIndex] = char;
      return dart.toString(buffer);
    }
    static _makeUint8List(codeUnits, start, end) {
      if (codeUnits == null) dart.nullFailed(I[111], 689, 45, "codeUnits");
      if (start == null) dart.nullFailed(I[111], 689, 60, "start");
      if (end == null) dart.nullFailed(I[111], 689, 71, "end");
      let length = dart.notNull(end) - dart.notNull(start);
      let bytes = _native_typed_data.NativeUint8List.new(length);
      for (let i = 0; i < length; i = i + 1) {
        let b = codeUnits[$_get](dart.notNull(start) + i);
        if ((dart.notNull(b) & ~255 >>> 0) !== 0) {
          b = 255;
        }
        bytes[$_set](i, b);
      }
      return bytes;
    }
  };
  (convert._Utf8Decoder.new = function(allowMalformed) {
    if (allowMalformed == null) dart.nullFailed(I[112], 25, 21, "allowMalformed");
    this[_charOrIndex] = 0;
    this.allowMalformed = allowMalformed;
    this[_state$] = 16;
    ;
  }).prototype = convert._Utf8Decoder.prototype;
  dart.addRtiResources(convert._Utf8Decoder, ["convert|_Utf8Decoder"]);
  dart.setMethodSignature(convert._Utf8Decoder, () => dart.global.Object.setPrototypeOf({
    [_convertGeneral]: T$2.ListOfintAndintAndintN__ToString(),
    [_decodeRecursive]: T$2.Uint8ListAndintAndint__ToString(),
    convertSingle: T$2.ListOfintAndintAndintNToString(),
    convertChunked: T$2.ListOfintAndintAndintNToString(),
    convertGeneral: T$2.ListOfintAndintAndintN__ToString(),
    flush: T$2.StringSinkTovoid(),
    decodeGeneral: T$2.Uint8ListAndintAndint__ToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(convert._Utf8Decoder))));
  dart.setStaticMethodSignature(convert._Utf8Decoder, () => ['_makeNativeUint8List', '_convertInterceptedUint8List', '_useTextDecoder', 'isErrorState', 'errorDescription', '_makeUint8List']);
  dart.setLibraryUri(convert._Utf8Decoder, I[41]);
  dart.setFieldSignature(convert._Utf8Decoder, () => dart.global.Object.setPrototypeOf({
    allowMalformed: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_state$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_charOrIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(convert._Utf8Decoder))));
  dart.setStaticFieldSignature(convert._Utf8Decoder, () => ['_shortInputThreshold', '_reusableBufferSize', '_reusableBuffer', '_decoder', '_decoderNonfatal', 'typeMask', 'shiftedByteMask', 'typeTable', 'IA', 'BB', 'AB', 'X1', 'X2', 'X3', 'TO', 'TS', 'QO', 'QR', 'B1', 'B2', 'E1', 'E2', 'E3', 'E4', 'E5', 'E6', 'E7', '_IA', '_BB', '_AB', '_X1', '_X2', '_X3', '_TO', '_TS', '_QO', '_QR', '_B1', '_B2', '_E1', '_E2', '_E3', '_E4', '_E5', '_E6', '_E7', 'transitionTable', 'initial', 'accept', 'beforeBom', 'afterBom', 'errorMissingExtension', 'errorUnexpectedExtension', 'errorInvalid', 'errorOverlong', 'errorOutOfRange', 'errorSurrogate', 'errorUnfinished']);
  dart.defineLazy(convert._Utf8Decoder, {
    /*convert._Utf8Decoder._shortInputThreshold*/get _shortInputThreshold() {
      return 15;
    },
    /*convert._Utf8Decoder._reusableBufferSize*/get _reusableBufferSize() {
      return 4096;
    },
    /*convert._Utf8Decoder._reusableBuffer*/get _reusableBuffer() {
      return _native_typed_data.NativeUint8List.new(4096);
    },
    /*convert._Utf8Decoder._decoder*/get _decoder() {
      return dart.fn(() => {
        try {
          return new TextDecoder("utf-8", {fatal: true});
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](e)) {
          } else
            throw t$36$35e;
        }
        return null;
      }, T$2.VoidToObjectN())();
    },
    /*convert._Utf8Decoder._decoderNonfatal*/get _decoderNonfatal() {
      return dart.fn(() => {
        try {
          return new TextDecoder("utf-8", {fatal: false});
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](e)) {
          } else
            throw t$36$35e;
        }
        return null;
      }, T$2.VoidToObjectN())();
    },
    /*convert._Utf8Decoder.typeMask*/get typeMask() {
      return 31;
    },
    /*convert._Utf8Decoder.shiftedByteMask*/get shiftedByteMask() {
      return 61694;
    },
    /*convert._Utf8Decoder.typeTable*/get typeTable() {
      return "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFFFFFFFFFFFFFFFFGGGGGGGGGGGGGGGGHHHHHHHHHHHHHHHHHHHHHHHHHHHIHHHJEEBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBKCCCCCCCCCCCCDCLONNNMEEEEEEEEEEE";
    },
    /*convert._Utf8Decoder.IA*/get IA() {
      return 0;
    },
    /*convert._Utf8Decoder.BB*/get BB() {
      return 16;
    },
    /*convert._Utf8Decoder.AB*/get AB() {
      return 32;
    },
    /*convert._Utf8Decoder.X1*/get X1() {
      return 48;
    },
    /*convert._Utf8Decoder.X2*/get X2() {
      return 58;
    },
    /*convert._Utf8Decoder.X3*/get X3() {
      return 68;
    },
    /*convert._Utf8Decoder.TO*/get TO() {
      return 78;
    },
    /*convert._Utf8Decoder.TS*/get TS() {
      return 88;
    },
    /*convert._Utf8Decoder.QO*/get QO() {
      return 98;
    },
    /*convert._Utf8Decoder.QR*/get QR() {
      return 108;
    },
    /*convert._Utf8Decoder.B1*/get B1() {
      return 118;
    },
    /*convert._Utf8Decoder.B2*/get B2() {
      return 128;
    },
    /*convert._Utf8Decoder.E1*/get E1() {
      return 65;
    },
    /*convert._Utf8Decoder.E2*/get E2() {
      return 67;
    },
    /*convert._Utf8Decoder.E3*/get E3() {
      return 69;
    },
    /*convert._Utf8Decoder.E4*/get E4() {
      return 71;
    },
    /*convert._Utf8Decoder.E5*/get E5() {
      return 73;
    },
    /*convert._Utf8Decoder.E6*/get E6() {
      return 75;
    },
    /*convert._Utf8Decoder.E7*/get E7() {
      return 77;
    },
    /*convert._Utf8Decoder._IA*/get _IA() {
      return "";
    },
    /*convert._Utf8Decoder._BB*/get _BB() {
      return "";
    },
    /*convert._Utf8Decoder._AB*/get _AB() {
      return " ";
    },
    /*convert._Utf8Decoder._X1*/get _X1() {
      return "0";
    },
    /*convert._Utf8Decoder._X2*/get _X2() {
      return ":";
    },
    /*convert._Utf8Decoder._X3*/get _X3() {
      return "D";
    },
    /*convert._Utf8Decoder._TO*/get _TO() {
      return "N";
    },
    /*convert._Utf8Decoder._TS*/get _TS() {
      return "X";
    },
    /*convert._Utf8Decoder._QO*/get _QO() {
      return "b";
    },
    /*convert._Utf8Decoder._QR*/get _QR() {
      return "l";
    },
    /*convert._Utf8Decoder._B1*/get _B1() {
      return "v";
    },
    /*convert._Utf8Decoder._B2*/get _B2() {
      return "";
    },
    /*convert._Utf8Decoder._E1*/get _E1() {
      return "A";
    },
    /*convert._Utf8Decoder._E2*/get _E2() {
      return "C";
    },
    /*convert._Utf8Decoder._E3*/get _E3() {
      return "E";
    },
    /*convert._Utf8Decoder._E4*/get _E4() {
      return "G";
    },
    /*convert._Utf8Decoder._E5*/get _E5() {
      return "I";
    },
    /*convert._Utf8Decoder._E6*/get _E6() {
      return "K";
    },
    /*convert._Utf8Decoder._E7*/get _E7() {
      return "M";
    },
    /*convert._Utf8Decoder.transitionTable*/get transitionTable() {
      return " 0:XECCCCCN:lDb 0:XECCCCCNvlDb 0:XECCCCCN:lDb AAAAAAAAAA00000AAAAA:::::AAAAAGG000AAAAA00KKKAAAAAG::::AAAAA:IIIIAAAAA0000AAAAA AAAAA";
    },
    /*convert._Utf8Decoder.initial*/get initial() {
      return 0;
    },
    /*convert._Utf8Decoder.accept*/get accept() {
      return 0;
    },
    /*convert._Utf8Decoder.beforeBom*/get beforeBom() {
      return 16;
    },
    /*convert._Utf8Decoder.afterBom*/get afterBom() {
      return 32;
    },
    /*convert._Utf8Decoder.errorMissingExtension*/get errorMissingExtension() {
      return 65;
    },
    /*convert._Utf8Decoder.errorUnexpectedExtension*/get errorUnexpectedExtension() {
      return 67;
    },
    /*convert._Utf8Decoder.errorInvalid*/get errorInvalid() {
      return 69;
    },
    /*convert._Utf8Decoder.errorOverlong*/get errorOverlong() {
      return 71;
    },
    /*convert._Utf8Decoder.errorOutOfRange*/get errorOutOfRange() {
      return 73;
    },
    /*convert._Utf8Decoder.errorSurrogate*/get errorSurrogate() {
      return 75;
    },
    /*convert._Utf8Decoder.errorUnfinished*/get errorUnfinished() {
      return 77;
    }
  }, false);
  convert._convertJsonToDart = function _convertJsonToDart(json, reviver) {
    if (reviver == null) dart.nullFailed(I[99], 49, 26, "reviver");
    function walk(e) {
      if (e == null || typeof e != "object") {
        return e;
      }
      if (Array.isArray(e)) {
        for (let i = 0; i < e.length; i = i + 1) {
          let item = e[i];
          e[i] = reviver(i, walk(item));
        }
        return e;
      }
      let map = new convert._JsonMap.new(e);
      let processed = map[_processed];
      let keys = map[_computeKeys]();
      for (let i = 0; i < dart.notNull(keys[$length]); i = i + 1) {
        let key = keys[$_get](i);
        let revived = reviver(key, walk(e[key]));
        processed[key] = revived;
      }
      map[_original$] = processed;
      return map;
    }
    dart.fn(walk, T$.dynamicTodynamic());
    return reviver(null, walk(json));
  };
  convert._convertJsonToDartLazy = function _convertJsonToDartLazy(object) {
    if (object == null) return null;
    if (typeof object != "object") {
      return object;
    }
    if (!Array.isArray(object)) {
      return new convert._JsonMap.new(object);
    }
    for (let i = 0; i < object.length; i = i + 1) {
      let item = object[i];
      object[i] = convert._convertJsonToDartLazy(item);
    }
    return object;
  };
  convert.base64Encode = function base64Encode(bytes) {
    if (bytes == null) dart.nullFailed(I[105], 41, 31, "bytes");
    return convert.base64.encode(bytes);
  };
  convert.base64UrlEncode = function base64UrlEncode(bytes) {
    if (bytes == null) dart.nullFailed(I[105], 46, 34, "bytes");
    return convert.base64Url.encode(bytes);
  };
  convert.base64Decode = function base64Decode(source) {
    if (source == null) dart.nullFailed(I[105], 52, 31, "source");
    return convert.base64.decode(source);
  };
  convert.jsonEncode = function jsonEncode(object, opts) {
    let toEncodable = opts && 'toEncodable' in opts ? opts.toEncodable : null;
    return convert.json.encode(object, {toEncodable: toEncodable});
  };
  convert.jsonDecode = function jsonDecode(source, opts) {
    if (source == null) dart.nullFailed(I[108], 153, 27, "source");
    let reviver = opts && 'reviver' in opts ? opts.reviver : null;
    return convert.json.decode(source, {reviver: reviver});
  };
  convert._parseJson = function _parseJson(source, reviver) {
    if (source == null) dart.nullFailed(I[99], 28, 19, "source");
    if (!(typeof source == 'string')) dart.throw(_js_helper.argumentErrorValue(source));
    let parsed = null;
    try {
      parsed = JSON.parse(source);
    } catch (t$36$35e) {
      let e = dart.getThrown(t$36$35e);
      if (T$.Object()[_is](e)) {
        dart.throw(new core.FormatException.new(String(e)));
      } else
        throw t$36$35e;
    }
    if (reviver == null) {
      return convert._convertJsonToDartLazy(parsed);
    } else {
      return convert._convertJsonToDart(parsed, reviver);
    }
  };
  convert._defaultToEncodable = function _defaultToEncodable(object) {
    return dart.dsend(object, 'toJson', []);
  };
  convert._isLeadSurrogate = function _isLeadSurrogate(codeUnit) {
    if (codeUnit == null) dart.nullFailed(I[111], 383, 27, "codeUnit");
    return (dart.notNull(codeUnit) & 64512) >>> 0 === 55296;
  };
  convert._isTailSurrogate = function _isTailSurrogate(codeUnit) {
    if (codeUnit == null) dart.nullFailed(I[111], 385, 27, "codeUnit");
    return (dart.notNull(codeUnit) & 64512) >>> 0 === 56320;
  };
  convert._combineSurrogatePair = function _combineSurrogatePair(lead, tail) {
    if (lead == null) dart.nullFailed(I[111], 387, 31, "lead");
    if (tail == null) dart.nullFailed(I[111], 387, 41, "tail");
    return (65536 + ((dart.notNull(lead) & 1023) >>> 0 << 10 >>> 0) | (dart.notNull(tail) & 1023) >>> 0) >>> 0;
  };
  dart.defineLazy(convert, {
    /*convert.ascii*/get ascii() {
      return C[149] || CT.C149;
    },
    /*convert._asciiMask*/get _asciiMask() {
      return 127;
    },
    /*convert.base64*/get base64() {
      return C[150] || CT.C150;
    },
    /*convert.base64Url*/get base64Url() {
      return C[151] || CT.C151;
    },
    /*convert._paddingChar*/get _paddingChar() {
      return 61;
    },
    /*convert.htmlEscape*/get htmlEscape() {
      return C[152] || CT.C152;
    },
    /*convert.json*/get json() {
      return C[153] || CT.C153;
    },
    /*convert.latin1*/get latin1() {
      return C[154] || CT.C154;
    },
    /*convert._latin1Mask*/get _latin1Mask() {
      return 255;
    },
    /*convert._LF*/get _LF() {
      return 10;
    },
    /*convert._CR*/get _CR() {
      return 13;
    },
    /*convert.unicodeReplacementCharacterRune*/get unicodeReplacementCharacterRune() {
      return 65533;
    },
    /*convert.unicodeBomCharacterRune*/get unicodeBomCharacterRune() {
      return 65279;
    },
    /*convert.utf8*/get utf8() {
      return C[155] || CT.C155;
    },
    /*convert._ONE_BYTE_LIMIT*/get _ONE_BYTE_LIMIT() {
      return 127;
    },
    /*convert._TWO_BYTE_LIMIT*/get _TWO_BYTE_LIMIT() {
      return 2047;
    },
    /*convert._THREE_BYTE_LIMIT*/get _THREE_BYTE_LIMIT() {
      return 65535;
    },
    /*convert._FOUR_BYTE_LIMIT*/get _FOUR_BYTE_LIMIT() {
      return 1114111;
    },
    /*convert._SURROGATE_TAG_MASK*/get _SURROGATE_TAG_MASK() {
      return 64512;
    },
    /*convert._SURROGATE_VALUE_MASK*/get _SURROGATE_VALUE_MASK() {
      return 1023;
    },
    /*convert._LEAD_SURROGATE_MIN*/get _LEAD_SURROGATE_MIN() {
      return 55296;
    },
    /*convert._TAIL_SURROGATE_MIN*/get _TAIL_SURROGATE_MIN() {
      return 56320;
    }
  }, false);
  developer._FakeUserTag = class _FakeUserTag extends core.Object {
    static ['_#real#tearOff'](label) {
      if (label == null) dart.nullFailed(I[113], 300, 26, "label");
      return new developer._FakeUserTag.real(label);
    }
    static new(label) {
      let t$36160, t$36159, t$36158;
      if (label == null) dart.nullFailed(I[113], 302, 31, "label");
      let existingTag = developer._FakeUserTag._instances[$_get](label);
      if (existingTag != null) {
        return existingTag;
      }
      if (developer._FakeUserTag._instances[$length] === 64) {
        dart.throw(new core.UnsupportedError.new("UserTag instance limit (64) reached."));
      }
      t$36158 = developer._FakeUserTag._instances;
      t$36159 = label;
      t$36160 = new developer._FakeUserTag.real(label);
      t$36158[$_set](t$36159, t$36160);
      return t$36160;
    }
    static ['_#new#tearOff'](label) {
      if (label == null) dart.nullFailed(I[113], 302, 31, "label");
      return developer._FakeUserTag.new(label);
    }
    makeCurrent() {
      let old = developer._currentTag;
      developer._currentTag = this;
      return old;
    }
  };
  (developer._FakeUserTag.real = function(label) {
    if (label == null) dart.nullFailed(I[113], 300, 26, "label");
    this.label = label;
    ;
  }).prototype = developer._FakeUserTag.prototype;
  dart.addRtiResources(developer._FakeUserTag, ["developer|_FakeUserTag", "developer|UserTag"]);
  dart.setMethodSignature(developer._FakeUserTag, () => dart.global.Object.setPrototypeOf({makeCurrent: T$2.VoidToUserTag()}, dart.getMethods(dart.global.Object.getPrototypeOf(developer._FakeUserTag))));
  dart.setStaticMethodSignature(developer._FakeUserTag, () => ['new']);
  dart.setLibraryUri(developer._FakeUserTag, I[114]);
  dart.setFieldSignature(developer._FakeUserTag, () => dart.global.Object.setPrototypeOf({label: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(developer._FakeUserTag))));
  dart.setStaticFieldSignature(developer._FakeUserTag, () => ['_instances', '_defaultTag']);
  dart.defineLazy(developer._FakeUserTag, {
    /*developer._FakeUserTag._instances*/get _instances() {
      return new (G.IdentityMapOfString$_FakeUserTag()).new();
    },
    /*developer._FakeUserTag._defaultTag*/get _defaultTag() {
      return developer._FakeUserTag.new("Default");
    }
  }, false);
  developer.NativeRuntime = class NativeRuntime extends core.Object {
    static get buildId() {
      return null;
    }
    static writeHeapSnapshotToFile(filepath) {
      if (filepath == null) dart.nullFailed(I[113], 338, 46, "filepath");
      return dart.throw(new core.UnsupportedError.new("Generating heap snapshots is not supported on the web."));
    }
  };
  (developer.NativeRuntime.new = function() {
    ;
  }).prototype = developer.NativeRuntime.prototype;
  dart.addRtiResources(developer.NativeRuntime, ["developer|NativeRuntime"]);
  dart.setStaticMethodSignature(developer.NativeRuntime, () => ['writeHeapSnapshotToFile']);
  dart.setStaticGetterSignature(developer.NativeRuntime, () => ['buildId']);
  dart.setLibraryUri(developer.NativeRuntime, I[114]);
  var result$ = dart.privateName(developer, "ServiceExtensionResponse.result");
  var errorCode$ = dart.privateName(developer, "ServiceExtensionResponse.errorCode");
  var errorDetail$ = dart.privateName(developer, "ServiceExtensionResponse.errorDetail");
  var _toString$0 = dart.privateName(developer, "_toString");
  developer.ServiceExtensionResponse = class ServiceExtensionResponse extends core.Object {
    get result() {
      return this[result$];
    }
    set result(value) {
      super.result = value;
    }
    get errorCode() {
      return this[errorCode$];
    }
    set errorCode(value) {
      super.errorCode = value;
    }
    get errorDetail() {
      return this[errorDetail$];
    }
    set errorDetail(value) {
      super.errorDetail = value;
    }
    static ['_#result#tearOff'](result) {
      if (result == null) dart.nullFailed(I[115], 25, 42, "result");
      return new developer.ServiceExtensionResponse.result(result);
    }
    static ['_#error#tearOff'](errorCode, errorDetail) {
      if (errorCode == null) dart.nullFailed(I[115], 39, 38, "errorCode");
      if (errorDetail == null) dart.nullFailed(I[115], 39, 56, "errorDetail");
      return new developer.ServiceExtensionResponse.error(errorCode, errorDetail);
    }
    static _errorCodeMessage(errorCode) {
      if (errorCode == null) dart.nullFailed(I[115], 60, 39, "errorCode");
      developer.ServiceExtensionResponse._validateErrorCode(errorCode);
      if (errorCode === -32602) {
        return "Invalid params";
      }
      return "Server error";
    }
    static _validateErrorCode(errorCode) {
      if (errorCode == null) dart.nullFailed(I[115], 68, 33, "errorCode");
      _internal.checkNotNullable(T$.int(), errorCode, "errorCode");
      if (errorCode === -32602) return;
      if (dart.notNull(errorCode) >= -32016 && dart.notNull(errorCode) <= -32000) {
        return;
      }
      dart.throw(new core.ArgumentError.value(errorCode, "errorCode", "Out of range"));
    }
    isError() {
      return this.errorCode != null && this.errorDetail != null;
    }
    [_toString$0]() {
      let t$36158;
      t$36158 = this.result;
      return t$36158 == null ? convert.json.encode(new (G.IdentityMapOfString$Object()).from(["code", dart.nullCheck(this.errorCode), "message", developer.ServiceExtensionResponse._errorCodeMessage(dart.nullCheck(this.errorCode)), "data", new (G.IdentityMapOfString$String()).from(["details", dart.nullCheck(this.errorDetail)])])) : t$36158;
    }
  };
  (developer.ServiceExtensionResponse.result = function(result) {
    if (result == null) dart.nullFailed(I[115], 25, 42, "result");
    this[result$] = result;
    this[errorCode$] = null;
    this[errorDetail$] = null;
    _internal.checkNotNullable(T$.String(), result, "result");
  }).prototype = developer.ServiceExtensionResponse.prototype;
  (developer.ServiceExtensionResponse.error = function(errorCode, errorDetail) {
    if (errorCode == null) dart.nullFailed(I[115], 39, 38, "errorCode");
    if (errorDetail == null) dart.nullFailed(I[115], 39, 56, "errorDetail");
    this[result$] = null;
    this[errorCode$] = errorCode;
    this[errorDetail$] = errorDetail;
    developer.ServiceExtensionResponse._validateErrorCode(errorCode);
    _internal.checkNotNullable(T$.String(), errorDetail, "errorDetail");
  }).prototype = developer.ServiceExtensionResponse.prototype;
  dart.addRtiResources(developer.ServiceExtensionResponse, ["developer|ServiceExtensionResponse"]);
  dart.setMethodSignature(developer.ServiceExtensionResponse, () => dart.global.Object.setPrototypeOf({
    isError: T$.VoidTobool(),
    [_toString$0]: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(developer.ServiceExtensionResponse))));
  dart.setStaticMethodSignature(developer.ServiceExtensionResponse, () => ['_errorCodeMessage', '_validateErrorCode']);
  dart.setLibraryUri(developer.ServiceExtensionResponse, I[114]);
  dart.setFieldSignature(developer.ServiceExtensionResponse, () => dart.global.Object.setPrototypeOf({
    result: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    errorCode: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    errorDetail: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(developer.ServiceExtensionResponse))));
  dart.setStaticFieldSignature(developer.ServiceExtensionResponse, () => ['invalidParams', 'extensionError', 'extensionErrorMax', 'extensionErrorMin']);
  dart.defineLazy(developer.ServiceExtensionResponse, {
    /*developer.ServiceExtensionResponse.invalidParams*/get invalidParams() {
      return -32602;
    },
    /*developer.ServiceExtensionResponse.extensionError*/get extensionError() {
      return -32000;
    },
    /*developer.ServiceExtensionResponse.extensionErrorMax*/get extensionErrorMax() {
      return -32000;
    },
    /*developer.ServiceExtensionResponse.extensionErrorMin*/get extensionErrorMin() {
      return -32016;
    }
  }, false);
  developer.UserTag = class UserTag extends core.Object {
    static ['_#new#tearOff'](label) {
      if (label == null) dart.nullFailed(I[113], 291, 26, "label");
      return developer._FakeUserTag.new(label);
    }
    static get defaultTag() {
      return developer._FakeUserTag._defaultTag;
    }
  };
  (developer.UserTag[dart.mixinNew] = function() {
  }).prototype = developer.UserTag.prototype;
  dart.addRtiResources(developer.UserTag, ["developer|UserTag"]);
  dart.setStaticMethodSignature(developer.UserTag, () => ['new']);
  dart.setStaticGetterSignature(developer.UserTag, () => ['defaultTag']);
  dart.setLibraryUri(developer.UserTag, I[114]);
  dart.setStaticFieldSignature(developer.UserTag, () => ['maxUserTags']);
  dart.defineLazy(developer.UserTag, {
    /*developer.UserTag.maxUserTags*/get maxUserTags() {
      return 64;
    }
  }, false);
  var majorVersion = dart.privateName(developer, "ServiceProtocolInfo.majorVersion");
  var minorVersion = dart.privateName(developer, "ServiceProtocolInfo.minorVersion");
  var serverUri$ = dart.privateName(developer, "ServiceProtocolInfo.serverUri");
  developer.ServiceProtocolInfo = class ServiceProtocolInfo extends core.Object {
    get majorVersion() {
      return this[majorVersion];
    }
    set majorVersion(value) {
      super.majorVersion = value;
    }
    get minorVersion() {
      return this[minorVersion];
    }
    set minorVersion(value) {
      super.minorVersion = value;
    }
    get serverUri() {
      return this[serverUri$];
    }
    set serverUri(value) {
      super.serverUri = value;
    }
    get serverWebSocketUri() {
      let uri = this.serverUri;
      if (uri != null) {
        let pathSegments = G.JSArrayOfString().of([]);
        if (dart.test(uri.pathSegments[$isNotEmpty])) {
          pathSegments[$addAll](uri.pathSegments[$where](dart.fn(s => {
            if (s == null) dart.nullFailed(I[116], 36, 12, "s");
            return s[$isNotEmpty];
          }, T$.StringTobool())));
        }
        pathSegments[$add]("ws");
        uri = uri.replace({scheme: "ws", pathSegments: pathSegments});
      }
      return uri;
    }
    static ['_#new#tearOff'](serverUri) {
      return new developer.ServiceProtocolInfo.new(serverUri);
    }
    toString() {
      if (this.serverUri != null) {
        return "Dart VM Service Protocol v" + dart.str(this.majorVersion) + "." + dart.str(this.minorVersion) + " " + "listening on " + dart.str(this.serverUri);
      } else {
        return "Dart VM Service Protocol v" + dart.str(this.majorVersion) + "." + dart.str(this.minorVersion);
      }
    }
  };
  (developer.ServiceProtocolInfo.new = function(serverUri) {
    this[majorVersion] = developer._getServiceMajorVersion();
    this[minorVersion] = developer._getServiceMinorVersion();
    this[serverUri$] = serverUri;
    ;
  }).prototype = developer.ServiceProtocolInfo.prototype;
  dart.addRtiResources(developer.ServiceProtocolInfo, ["developer|ServiceProtocolInfo"]);
  dart.setGetterSignature(developer.ServiceProtocolInfo, () => dart.global.Object.setPrototypeOf({serverWebSocketUri: T$2.UriN()}, dart.getGetters(dart.global.Object.getPrototypeOf(developer.ServiceProtocolInfo))));
  dart.setLibraryUri(developer.ServiceProtocolInfo, I[114]);
  dart.setFieldSignature(developer.ServiceProtocolInfo, () => dart.global.Object.setPrototypeOf({
    majorVersion: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    minorVersion: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    serverUri: {type: T$2.UriN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(developer.ServiceProtocolInfo))));
  dart.defineExtensionMethods(developer.ServiceProtocolInfo, ['toString']);
  developer.Service = class Service extends core.Object {
    static getInfo() {
      return async.async(T$2.ServiceProtocolInfo(), function* getInfo() {
        let receivePort = isolate.RawReceivePort.new(null, "Service.getInfo");
        let completer = G.CompleterOfStringN().new();
        receivePort.handler = dart.fn(uriString => completer.complete(uriString), T$2.StringNTovoid());
        developer._getServerInfo(receivePort.sendPort);
        let uriString = (yield completer.future);
        let uri = uriString == null ? null : core.Uri.parse(uriString);
        receivePort.close();
        return new developer.ServiceProtocolInfo.new(uri);
      });
    }
    static controlWebServer(opts) {
      let enable = opts && 'enable' in opts ? opts.enable : false;
      if (enable == null) dart.nullFailed(I[116], 84, 13, "enable");
      let silenceOutput = opts && 'silenceOutput' in opts ? opts.silenceOutput : null;
      return async.async(T$2.ServiceProtocolInfo(), function* controlWebServer() {
        core.ArgumentError.checkNotNull(T$.bool(), enable, "enable");
        let receivePort = isolate.RawReceivePort.new(null, "Service.controlWebServer");
        let completer = G.CompleterOfStringN().new();
        receivePort.handler = dart.fn(uriString => completer.complete(uriString), T$2.StringNTovoid());
        developer._webServerControl(receivePort.sendPort, enable, silenceOutput);
        let uriString = (yield completer.future);
        let uri = uriString == null ? null : core.Uri.parse(uriString);
        receivePort.close();
        return new developer.ServiceProtocolInfo.new(uri);
      });
    }
    static getIsolateId(isolate) {
      if (isolate == null) dart.nullFailed(I[116], 110, 39, "isolate");
      core.ArgumentError.checkNotNull(T$2.Isolate(), isolate, "isolate");
      return developer._getIsolateIdFromSendPort(isolate.controlPort);
    }
    static getIsolateID(isolate) {
      if (isolate == null) dart.nullFailed(I[116], 121, 39, "isolate");
      core.ArgumentError.checkNotNull(T$2.Isolate(), isolate, "isolate");
      return developer._getIsolateIdFromSendPort(isolate.controlPort);
    }
    static getObjectId(object) {
      if (object == null) dart.nullFailed(I[116], 132, 37, "object");
      return developer._getObjectId(object);
    }
    static ['_#new#tearOff']() {
      return new developer.Service.new();
    }
  };
  (developer.Service.new = function() {
    ;
  }).prototype = developer.Service.prototype;
  dart.addRtiResources(developer.Service, ["developer|Service"]);
  dart.setStaticMethodSignature(developer.Service, () => ['getInfo', 'controlWebServer', 'getIsolateId', 'getIsolateID', 'getObjectId']);
  dart.setLibraryUri(developer.Service, I[114]);
  var id$0 = dart.privateName(developer, "Flow.id");
  var _type$ = dart.privateName(developer, "_type");
  developer.Flow = class Flow extends core.Object {
    get id() {
      return this[id$0];
    }
    set id(value) {
      super.id = value;
    }
    static ['_#_#tearOff'](_type, id) {
      if (_type == null) dart.nullFailed(I[117], 67, 15, "_type");
      if (id == null) dart.nullFailed(I[117], 67, 27, "id");
      return new developer.Flow.__(_type, id);
    }
    static begin(opts) {
      let t$36158;
      let id = opts && 'id' in opts ? opts.id : null;
      return new developer.Flow.__(9, (t$36158 = id, t$36158 == null ? developer._getNextTaskId() : t$36158));
    }
    static step(id) {
      if (id == null) dart.nullFailed(I[117], 83, 24, "id");
      return new developer.Flow.__(10, id);
    }
    static end(id) {
      if (id == null) dart.nullFailed(I[117], 90, 23, "id");
      return new developer.Flow.__(11, id);
    }
  };
  (developer.Flow.__ = function(_type, id) {
    if (_type == null) dart.nullFailed(I[117], 67, 15, "_type");
    if (id == null) dart.nullFailed(I[117], 67, 27, "id");
    this[_type$] = _type;
    this[id$0] = id;
    ;
  }).prototype = developer.Flow.prototype;
  dart.addRtiResources(developer.Flow, ["developer|Flow"]);
  dart.setStaticMethodSignature(developer.Flow, () => ['begin', 'step', 'end']);
  dart.setLibraryUri(developer.Flow, I[114]);
  dart.setFieldSignature(developer.Flow, () => dart.global.Object.setPrototypeOf({
    [_type$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    id: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(developer.Flow))));
  var _startSync = dart.privateName(developer, "_startSync");
  developer.Timeline = class Timeline extends core.Object {
    static startSync(name, opts) {
      if (name == null) dart.nullFailed(I[117], 118, 32, "name");
      let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
      let flow = opts && 'flow' in opts ? opts.flow : null;
      ;
      core.ArgumentError.checkNotNull(T$.String(), name, "name");
      if (!dart.test(developer._isDartStreamEnabled())) {
        developer.Timeline._stack[$add](null);
        return;
      }
      let block = new developer._SyncBlock.__(name, developer._getNextTaskId(), {arguments: $arguments, flow: flow});
      developer.Timeline._stack[$add](block);
      block[_startSync]();
    }
    static finishSync() {
      ;
      if (dart.test(developer.Timeline._stack[$isEmpty])) {
        dart.throw(new core.StateError.new("Uneven calls to startSync and finishSync"));
      }
      let block = developer.Timeline._stack[$removeLast]();
      if (block == null) {
        return;
      }
      block.finish();
    }
    static instantSync(name, opts) {
      if (name == null) dart.nullFailed(I[117], 152, 34, "name");
      let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
      ;
      core.ArgumentError.checkNotNull(T$.String(), name, "name");
      if (!dart.test(developer._isDartStreamEnabled())) {
        return;
      }
      let taskId = 0;
      developer._reportTaskEvent(taskId, -1, 4, name, developer._argumentsAsJson($arguments));
    }
    static timeSync(T, name, $function, opts) {
      if (name == null) dart.nullFailed(I[117], 169, 31, "name");
      if ($function == null) dart.nullFailed(I[117], 169, 61, "function");
      let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
      let flow = opts && 'flow' in opts ? opts.flow : null;
      developer.Timeline.startSync(name, {arguments: $arguments, flow: flow});
      try {
        return $function();
      } finally {
        developer.Timeline.finishSync();
      }
    }
    static get now() {
      return developer._getTraceClock();
    }
  };
  (developer.Timeline.new = function() {
    ;
  }).prototype = developer.Timeline.prototype;
  dart.addRtiResources(developer.Timeline, ["developer|Timeline"]);
  dart.setStaticMethodSignature(developer.Timeline, () => ['startSync', 'finishSync', 'instantSync', 'timeSync']);
  dart.setStaticGetterSignature(developer.Timeline, () => ['now']);
  dart.setLibraryUri(developer.Timeline, I[114]);
  dart.setStaticFieldSignature(developer.Timeline, () => ['_stack']);
  dart.defineLazy(developer.Timeline, {
    /*developer.Timeline._stack*/get _stack() {
      return G.JSArrayOf_SyncBlockN().of([]);
    }
  }, false);
  var _stack = dart.privateName(developer, "_stack");
  var _parent = dart.privateName(developer, "_parent");
  var _filterKey = dart.privateName(developer, "_filterKey");
  var _taskId$ = dart.privateName(developer, "_taskId");
  var _start = dart.privateName(developer, "_start");
  var _finish = dart.privateName(developer, "_finish");
  developer.TimelineTask = class TimelineTask extends core.Object {
    static ['_#new#tearOff'](opts) {
      let parent = opts && 'parent' in opts ? opts.parent : null;
      let filterKey = opts && 'filterKey' in opts ? opts.filterKey : null;
      return new developer.TimelineTask.new({parent: parent, filterKey: filterKey});
    }
    static ['_#withTaskId#tearOff'](taskId, opts) {
      if (taskId == null) dart.nullFailed(I[117], 218, 31, "taskId");
      let filterKey = opts && 'filterKey' in opts ? opts.filterKey : null;
      return new developer.TimelineTask.withTaskId(taskId, {filterKey: filterKey});
    }
    start(name, opts) {
      if (name == null) dart.nullFailed(I[117], 228, 21, "name");
      let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
      ;
      core.ArgumentError.checkNotNull(T$.String(), name, "name");
      if (!dart.test(developer._isDartStreamEnabled())) {
        this[_stack][$add](null);
        return;
      }
      let block = new developer._AsyncBlock.__(name, this[_taskId$]);
      this[_stack][$add](block);
      let map = new (G.LinkedMapOfObjectN$ObjectN()).new();
      if ($arguments != null) {
        for (let key of $arguments[$keys]) {
          map[$_set](key, $arguments[$_get](key));
        }
      }
      if (this[_parent] != null) map[$_set]("parentId", this[_parent][_taskId$][$toRadixString](16));
      if (this[_filterKey] != null) map[$_set]("filterKey", this[_filterKey]);
      block[_start](map);
    }
    instant(name, opts) {
      if (name == null) dart.nullFailed(I[117], 256, 23, "name");
      let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
      ;
      core.ArgumentError.checkNotNull(T$.String(), name, "name");
      if (!dart.test(developer._isDartStreamEnabled())) {
        return;
      }
      let instantArguments = null;
      if ($arguments != null) {
        instantArguments = collection.LinkedHashMap.from($arguments);
      }
      if (this[_filterKey] != null) {
        instantArguments == null ? instantArguments = new _js_helper.LinkedMap.new() : null;
        instantArguments[$_set]("filterKey", this[_filterKey]);
      }
      developer._reportTaskEvent(this[_taskId$], -1, 6, name, developer._argumentsAsJson(instantArguments));
    }
    finish(opts) {
      let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
      ;
      if (this[_stack][$length] === 0) {
        dart.throw(new core.StateError.new("Uneven calls to start and finish"));
      }
      if (this[_filterKey] != null) {
        $arguments == null ? $arguments = new _js_helper.LinkedMap.new() : null;
        $arguments[$_set]("filterKey", this[_filterKey]);
      }
      let block = this[_stack][$removeLast]();
      if (block == null) {
        return;
      }
      block[_finish]($arguments);
    }
    pass() {
      if (dart.notNull(this[_stack][$length]) > 0) {
        dart.throw(new core.StateError.new("You cannot pass a TimelineTask without finishing all started operations"));
      }
      let r = this[_taskId$];
      return r;
    }
  };
  (developer.TimelineTask.new = function(opts) {
    let parent = opts && 'parent' in opts ? opts.parent : null;
    let filterKey = opts && 'filterKey' in opts ? opts.filterKey : null;
    this[_stack] = G.JSArrayOf_AsyncBlockN().of([]);
    this[_parent] = parent;
    this[_filterKey] = filterKey;
    this[_taskId$] = developer._getNextTaskId();
  }).prototype = developer.TimelineTask.prototype;
  (developer.TimelineTask.withTaskId = function(taskId, opts) {
    if (taskId == null) dart.nullFailed(I[117], 218, 31, "taskId");
    let filterKey = opts && 'filterKey' in opts ? opts.filterKey : null;
    this[_stack] = G.JSArrayOf_AsyncBlockN().of([]);
    this[_parent] = null;
    this[_filterKey] = filterKey;
    this[_taskId$] = taskId;
    core.ArgumentError.checkNotNull(T$.int(), taskId, "taskId");
  }).prototype = developer.TimelineTask.prototype;
  dart.addRtiResources(developer.TimelineTask, ["developer|TimelineTask"]);
  dart.setMethodSignature(developer.TimelineTask, () => dart.global.Object.setPrototypeOf({
    start: T$2.String__Tovoid$1(),
    instant: T$2.String__Tovoid$1(),
    finish: T$2.__Tovoid(),
    pass: T$.VoidToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(developer.TimelineTask))));
  dart.setLibraryUri(developer.TimelineTask, I[114]);
  dart.setFieldSignature(developer.TimelineTask, () => dart.global.Object.setPrototypeOf({
    [_parent]: {type: T$2.TimelineTaskN(), isConst: false, isFinal: true, libraryUri: I[114]},
    [_filterKey]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_taskId$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_stack]: {type: T$2.ListOf_AsyncBlockN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(developer.TimelineTask))));
  dart.setStaticFieldSignature(developer.TimelineTask, () => ['_kFilterKey']);
  dart.defineLazy(developer.TimelineTask, {
    /*developer.TimelineTask._kFilterKey*/get _kFilterKey() {
      return "filterKey";
    }
  }, false);
  developer._AsyncBlock = class _AsyncBlock extends core.Object {
    static ['_#_#tearOff'](name, _taskId) {
      if (name == null) dart.nullFailed(I[117], 326, 22, "name");
      if (_taskId == null) dart.nullFailed(I[117], 326, 33, "_taskId");
      return new developer._AsyncBlock.__(name, _taskId);
    }
    [_start]($arguments) {
      if ($arguments == null) dart.nullFailed(I[117], 329, 19, "arguments");
      developer._reportTaskEvent(this[_taskId$], -1, 5, this.name, developer._argumentsAsJson($arguments));
    }
    [_finish]($arguments) {
      developer._reportTaskEvent(this[_taskId$], -1, 7, this.name, developer._argumentsAsJson($arguments));
    }
  };
  (developer._AsyncBlock.__ = function(name, _taskId) {
    if (name == null) dart.nullFailed(I[117], 326, 22, "name");
    if (_taskId == null) dart.nullFailed(I[117], 326, 33, "_taskId");
    this.name = name;
    this[_taskId$] = _taskId;
    ;
  }).prototype = developer._AsyncBlock.prototype;
  dart.addRtiResources(developer._AsyncBlock, ["developer|_AsyncBlock"]);
  dart.setMethodSignature(developer._AsyncBlock, () => dart.global.Object.setPrototypeOf({
    [_start]: T$2.MapTovoid(),
    [_finish]: T$2.MapNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(developer._AsyncBlock))));
  dart.setLibraryUri(developer._AsyncBlock, I[114]);
  dart.setFieldSignature(developer._AsyncBlock, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_taskId$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(developer._AsyncBlock))));
  var ___SyncBlock__jsonArguments = dart.privateName(developer, "_#_SyncBlock#_jsonArguments");
  var ___SyncBlock__jsonArguments_isSet = dart.privateName(developer, "_#_SyncBlock#_jsonArguments#isSet");
  var _jsonArguments = dart.privateName(developer, "_jsonArguments");
  developer._SyncBlock = class _SyncBlock extends core.Object {
    get [_jsonArguments]() {
      let t$36159;
      if (!dart.test(this[___SyncBlock__jsonArguments_isSet])) {
        let t$36158 = developer._argumentsAsJson(this.arguments);
        if (dart.test(this[___SyncBlock__jsonArguments_isSet])) dart.throw(new _internal.LateError.fieldADI("_jsonArguments"));
        this[___SyncBlock__jsonArguments] = t$36158;
        this[___SyncBlock__jsonArguments_isSet] = true;
      }
      t$36159 = this[___SyncBlock__jsonArguments];
      return t$36159;
    }
    static ['_#_#tearOff'](name, taskId, opts) {
      if (name == null) dart.nullFailed(I[117], 359, 21, "name");
      if (taskId == null) dart.nullFailed(I[117], 359, 32, "taskId");
      let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
      let flow = opts && 'flow' in opts ? opts.flow : null;
      return new developer._SyncBlock.__(name, taskId, {arguments: $arguments, flow: flow});
    }
    [_startSync]() {
      let t$36159, t$36159$;
      developer._reportTaskEvent(this.taskId, (t$36159$ = (t$36159 = this.flow, t$36159 == null ? null : t$36159.id), t$36159$ == null ? -1 : t$36159$), 1, this.name, this[_jsonArguments]);
    }
    finish() {
      let tempFlow = this.flow;
      if (tempFlow != null) {
        developer._reportTaskEvent(tempFlow.id, -1, tempFlow[_type$], dart.str(tempFlow.id), developer._argumentsAsJson(null));
      }
      developer._reportTaskEvent(this.taskId, -1, 2, this.name, this[_jsonArguments]);
    }
  };
  (developer._SyncBlock.__ = function(name, taskId, opts) {
    if (name == null) dart.nullFailed(I[117], 359, 21, "name");
    if (taskId == null) dart.nullFailed(I[117], 359, 32, "taskId");
    let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
    let flow = opts && 'flow' in opts ? opts.flow : null;
    this[___SyncBlock__jsonArguments] = null;
    this[___SyncBlock__jsonArguments_isSet] = false;
    this.name = name;
    this.taskId = taskId;
    this.arguments = $arguments;
    this.flow = flow;
    ;
  }).prototype = developer._SyncBlock.prototype;
  dart.addRtiResources(developer._SyncBlock, ["developer|_SyncBlock"]);
  dart.setMethodSignature(developer._SyncBlock, () => dart.global.Object.setPrototypeOf({
    [_startSync]: T$.VoidTovoid(),
    finish: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(developer._SyncBlock))));
  dart.setGetterSignature(developer._SyncBlock, () => dart.global.Object.setPrototypeOf({[_jsonArguments]: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(developer._SyncBlock))));
  dart.setLibraryUri(developer._SyncBlock, I[114]);
  dart.setFieldSignature(developer._SyncBlock, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    taskId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    arguments: {type: T$2.MapN(), isConst: false, isFinal: true, libraryUri: I[11]},
    flow: {type: T$2.FlowN(), isConst: false, isFinal: true, libraryUri: I[114]},
    [___SyncBlock__jsonArguments]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___SyncBlock__jsonArguments_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(developer._SyncBlock))));
  developer.invokeExtension = function _invokeExtension(methodName, encodedJson) {
    if (methodName == null) dart.nullFailed(I[113], 113, 25, "methodName");
    if (encodedJson == null) dart.nullFailed(I[113], 113, 44, "encodedJson");
    return new dart.global.Promise((resolve, reject) => {
      if (resolve == null) dart.nullFailed(I[113], 116, 25, "resolve");
      if (reject == null) dart.nullFailed(I[113], 116, 51, "reject");
      return async.async(T$.Null(), function*() {
        try {
          let method = dart.nullCheck(developer._lookupExtension(methodName));
          let parameters = T$.Map()[_as](convert.json.decode(encodedJson))[$cast](T$.String(), T$.String());
          let result = (yield method(methodName, parameters));
          resolve(result[_toString$0]());
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](e)) {
            reject(dart.str(e));
          } else
            throw t$36$35e;
        }
      });
    });
  };
  developer._isBeginEvent = function _isBeginEvent(type) {
    if (type == null) dart.nullFailed(I[113], 170, 24, "type");
    return type === 1 || type === 5;
  };
  developer._isEndEvent = function _isEndEvent(type) {
    if (type == null) dart.nullFailed(I[113], 172, 22, "type");
    return type === 2 || type === 7;
  };
  developer._isUnsupportedEvent = function _isUnsupportedEvent(type) {
    if (type == null) dart.nullFailed(I[113], 174, 30, "type");
    return type === 9 || type === 11 || type === 10;
  };
  developer._createEventName = function _createEventName(opts) {
    let taskId = opts && 'taskId' in opts ? opts.taskId : null;
    if (taskId == null) dart.nullFailed(I[113], 178, 16, "taskId");
    let name = opts && 'name' in opts ? opts.name : null;
    if (name == null) dart.nullFailed(I[113], 179, 19, "name");
    let isBeginEvent = opts && 'isBeginEvent' in opts ? opts.isBeginEvent : null;
    if (isBeginEvent == null) dart.nullFailed(I[113], 180, 17, "isBeginEvent");
    let isEndEvent = opts && 'isEndEvent' in opts ? opts.isEndEvent : null;
    if (isEndEvent == null) dart.nullFailed(I[113], 181, 17, "isEndEvent");
    if (dart.test(isBeginEvent)) {
      return dart.str(taskId) + "-" + dart.str(name) + "-begin";
    }
    if (dart.test(isEndEvent)) {
      return dart.str(taskId) + "-" + dart.str(name) + "-end";
    }
    return name;
  };
  developer._postfixWithCount = function _postfixWithCount(eventName) {
    if (eventName == null) dart.nullFailed(I[113], 195, 33, "eventName");
    let count = developer._eventNameToCount[$_get](eventName);
    if (count == null) return eventName;
    return dart.str(eventName) + "-" + dart.str(count);
  };
  developer._incrementEventCount = function _incrementEventCount(eventName) {
    let t$36160;
    if (eventName == null) dart.nullFailed(I[113], 201, 34, "eventName");
    let currentCount = (t$36160 = developer._eventNameToCount[$_get](eventName), t$36160 == null ? 0 : t$36160);
    developer._eventNameToCount[$_set](eventName, dart.notNull(currentCount) + 1);
  };
  developer._decrementEventCount = function _decrementEventCount(eventName) {
    if (eventName == null) dart.nullFailed(I[113], 206, 34, "eventName");
    if (!dart.test(developer._eventNameToCount[$containsKey](eventName))) return;
    let newCount = dart.nullCheck(developer._eventNameToCount[$_get](eventName)) - 1;
    if (newCount <= 0) {
      developer._eventNameToCount[$remove](eventName);
    } else {
      developer._eventNameToCount[$_set](eventName, newCount);
    }
  };
  developer.debugger = function $debugger(opts) {
    let when = opts && 'when' in opts ? opts.when : true;
    if (when == null) dart.nullFailed(I[113], 36, 21, "when");
    let message = opts && 'message' in opts ? opts.message : null;
    if (dart.test(when)) {
      debugger;
    }
    return when;
  };
  developer.inspect = function inspect(object) {
    console.debug("dart.developer.inspect", object);
    return object;
  };
  developer.log = function log(message, opts) {
    if (message == null) dart.nullFailed(I[113], 52, 17, "message");
    let time = opts && 'time' in opts ? opts.time : null;
    let sequenceNumber = opts && 'sequenceNumber' in opts ? opts.sequenceNumber : null;
    let level = opts && 'level' in opts ? opts.level : 0;
    if (level == null) dart.nullFailed(I[113], 55, 9, "level");
    let name = opts && 'name' in opts ? opts.name : "";
    if (name == null) dart.nullFailed(I[113], 56, 12, "name");
    let zone = opts && 'zone' in opts ? opts.zone : null;
    let error = opts && 'error' in opts ? opts.error : null;
    let stackTrace = opts && 'stackTrace' in opts ? opts.stackTrace : null;
    let items = {message: message, name: name, level: level};
    if (time != null) items.time = time;
    if (sequenceNumber != null) {
      items.sequenceNumber = sequenceNumber;
    }
    if (zone != null) items.zone = zone;
    if (error != null) items.error = error;
    if (stackTrace != null) items.stackTrace = stackTrace;
    console.debug("dart.developer.log", items);
  };
  developer.registerExtension = function registerExtension$(method, handler) {
    if (method == null) dart.nullFailed(I[115], 114, 31, "method");
    if (handler == null) dart.nullFailed(I[115], 114, 63, "handler");
    _internal.checkNotNullable(T$.String(), method, "method");
    if (!method[$startsWith]("ext.")) {
      dart.throw(new core.ArgumentError.value(method, "method", "Must begin with ext."));
    }
    if (developer._lookupExtension(method) != null) {
      dart.throw(new core.ArgumentError.new("Extension already registered: " + dart.str(method)));
    }
    _internal.checkNotNullable(T$2.StringAndMapOfString$StringToFutureOfServiceExtensionResponse(), handler, "handler");
    let zoneHandler = async.Zone.current.bindBinaryCallback(T$2.FutureOfServiceExtensionResponse(), T$.String(), T$2.MapOfString$String(), handler);
    developer._registerExtension(method, zoneHandler);
  };
  developer.postEvent = function postEvent(eventKind, eventData, opts) {
    if (eventKind == null) dart.nullFailed(I[115], 155, 23, "eventKind");
    if (eventData == null) dart.nullFailed(I[115], 155, 38, "eventData");
    let stream = opts && 'stream' in opts ? opts.stream : "Extension";
    if (stream == null) dart.nullFailed(I[115], 156, 28, "stream");
    let protectedStreams = G.JSArrayOfString().of(["VM", "Isolate", "Debug", "GC", "_Echo", "HeapSnapshot", "Logging", "Timeline", "Profiler"]);
    if (dart.test(protectedStreams[$contains](stream))) {
      dart.throw(new core.ArgumentError.value(stream, "stream", "Cannot be a protected stream."));
    } else if (stream[$startsWith]("_")) {
      dart.throw(new core.ArgumentError.value(stream, "stream", "Cannot start with an underscore."));
    }
    if (!dart.test(developer.extensionStreamHasListener)) {
      return;
    }
    _internal.checkNotNullable(T$.String(), eventKind, "eventKind");
    _internal.checkNotNullable(T$.Map(), eventData, "eventData");
    _internal.checkNotNullable(T$.String(), stream, "stream");
    let mutableEventData = collection.LinkedHashMap.from(eventData);
    mutableEventData[$_set]("__destinationStream", stream);
    let eventDataAsString = convert.json.encode(mutableEventData);
    developer._postEvent(eventKind, eventDataAsString);
  };
  developer._postEvent = function _postEvent(eventKind, eventData) {
    if (eventKind == null) dart.nullFailed(I[113], 133, 24, "eventKind");
    if (eventData == null) dart.nullFailed(I[113], 133, 42, "eventData");
    if (!dart.test(developer._debuggerAttached)) {
      if (!dart.test(developer._issuedPostEventWarning)) {
        let message = "postEvent() " + dart.str(developer._developerSupportWarning);
        console.warn(message);
        developer._issuedPostEventWarning = true;
      }
      return;
    }
    if (!!dart.global.$emitDebugEvent) {
      dart.global.$emitDebugEvent(eventKind, eventData);
    }
  };
  developer._lookupExtension = function _lookupExtension(method) {
    if (method == null) dart.nullFailed(I[113], 79, 50, "method");
    return developer._extensions[$_get](method);
  };
  developer._registerExtension = function _registerExtension(method, handler) {
    if (method == null) dart.nullFailed(I[113], 84, 27, "method");
    if (handler == null) dart.nullFailed(I[113], 84, 59, "handler");
    if (!dart.test(developer._debuggerAttached)) {
      if (!dart.test(developer._issuedRegisterExtensionWarning)) {
        let message = "registerExtension() " + dart.str(developer._developerSupportWarning);
        console.warn(message);
        developer._issuedRegisterExtensionWarning = true;
      }
      return;
    }
    if (!!dart.global.$emitRegisterEvent) {
      developer._extensions[$_set](method, handler);
      dart.global.$emitRegisterEvent(method);
    }
  };
  developer.addHttpClientProfilingData = function addHttpClientProfilingData(requestProfile) {
    if (requestProfile == null) dart.nullFailed(I[118], 16, 54, "requestProfile");
    developer._developerProfilingData[$add](requestProfile);
    requestProfile[$_set]("id", "from_package/" + dart.str(developer._developerProfilingData[$length]));
  };
  developer.getHttpClientProfilingData = function getHttpClientProfilingData() {
    return new (G.UnmodifiableListViewOfMapOfString$dynamic()).new(developer._developerProfilingData);
  };
  developer.getCurrentTag = function getCurrentTag() {
    return developer._currentTag;
  };
  developer._getServerInfo = function _getServerInfo(sendPort) {
    if (sendPort == null) dart.nullFailed(I[113], 269, 30, "sendPort");
    sendPort.send(null);
  };
  developer._webServerControl = function _webServerControl(sendPort, enable, silenceOutput) {
    if (sendPort == null) dart.nullFailed(I[113], 274, 33, "sendPort");
    if (enable == null) dart.nullFailed(I[113], 274, 48, "enable");
    sendPort.send(null);
  };
  developer._getServiceMajorVersion = function _getServiceMajorVersion() {
    return 0;
  };
  developer._getServiceMinorVersion = function _getServiceMinorVersion() {
    return 0;
  };
  developer._getIsolateIdFromSendPort = function _getIsolateIdFromSendPort(sendPort) {
    if (sendPort == null) dart.nullFailed(I[113], 279, 44, "sendPort");
    return null;
  };
  developer._getObjectId = function _getObjectId(object) {
    if (object == null) dart.nullFailed(I[113], 284, 29, "object");
    return null;
  };
  developer._argumentsAsJson = function _argumentsAsJson($arguments) {
    if ($arguments == null || $arguments[$length] === 0) {
      return "{}";
    }
    return convert.json.encode($arguments);
  };
  developer._isDartStreamEnabled = function _isDartStreamEnabled() {
    return true;
  };
  developer._getNextTaskId = function _getNextTaskId() {
    let t$36160;
    t$36160 = developer._taskId;
    developer._taskId = dart.notNull(t$36160) + 1;
    return t$36160;
  };
  developer._getTraceClock = function _getTraceClock() {
    return new core.DateTime.now().millisecondsSinceEpoch;
  };
  developer._reportTaskEvent = function _reportTaskEvent(taskId, flowId, type, name, argumentsAsJson) {
    if (taskId == null) dart.nullFailed(I[113], 219, 9, "taskId");
    if (flowId == null) dart.nullFailed(I[113], 219, 21, "flowId");
    if (type == null) dart.nullFailed(I[113], 219, 33, "type");
    if (name == null) dart.nullFailed(I[113], 219, 46, "name");
    if (argumentsAsJson == null) dart.nullFailed(I[113], 219, 59, "argumentsAsJson");
    if (dart.test(developer._isUnsupportedEvent(type))) return;
    let isBeginEvent = developer._isBeginEvent(type);
    let isEndEvent = developer._isEndEvent(type);
    let currentEventName = developer._createEventName({taskId: taskId, name: name, isBeginEvent: isBeginEvent, isEndEvent: isEndEvent});
    if (dart.test(isBeginEvent)) {
      developer._incrementEventCount(currentEventName);
      currentEventName = developer._postfixWithCount(currentEventName);
    }
    let markOptions = {detail: JSON.parse(argumentsAsJson)};
    performance.mark(currentEventName, markOptions);
    if (dart.test(isEndEvent)) {
      let beginEventName = developer._createEventName({taskId: taskId, name: name, isBeginEvent: true, isEndEvent: false});
      performance.measure(name, developer._postfixWithCount(beginEventName), currentEventName);
      developer._decrementEventCount(beginEventName);
    }
  };
  dart.copyProperties(developer, {
    get _debuggerAttached() {
      return !!dart.global.$dwdsVersion;
    },
    get reachabilityBarrier() {
      return 0;
    },
    get extensionStreamHasListener() {
      return developer._debuggerAttached;
    }
  });
  dart.defineLazy(developer, {
    /*developer._beginPatch*/get _beginPatch() {
      return 1;
    },
    /*developer._endPatch*/get _endPatch() {
      return 2;
    },
    /*developer._asyncBeginPatch*/get _asyncBeginPatch() {
      return 5;
    },
    /*developer._asyncEndPatch*/get _asyncEndPatch() {
      return 7;
    },
    /*developer._flowBeginPatch*/get _flowBeginPatch() {
      return 9;
    },
    /*developer._flowStepPatch*/get _flowStepPatch() {
      return 10;
    },
    /*developer._flowEndPatch*/get _flowEndPatch() {
      return 11;
    },
    /*developer._issuedRegisterExtensionWarning*/get _issuedRegisterExtensionWarning() {
      return false;
    },
    set _issuedRegisterExtensionWarning(value) {
      if (value == null) dart.nullFailed(I[113], 24, 5, "_issuedRegisterExtensionWarning");
    },
    /*developer._issuedPostEventWarning*/get _issuedPostEventWarning() {
      return false;
    },
    set _issuedPostEventWarning(value) {
      if (value == null) dart.nullFailed(I[113], 25, 5, "_issuedPostEventWarning");
    },
    /*developer._developerSupportWarning*/get _developerSupportWarning() {
      return "from dart:developer is only supported in build/run/test environments where the developer event method hooks have been set by package:dwds v11.1.0 or higher.";
    },
    /*developer._extensions*/get _extensions() {
      return new (G.IdentityMapOfString$StringAndMapOfString$StringToFutureOfServiceExtensionResponse()).new();
    },
    /*developer._taskId*/get _taskId() {
      return 1;
    },
    set _taskId(value) {
      if (value == null) dart.nullFailed(I[113], 163, 5, "_taskId");
    },
    /*developer._eventNameToCount*/get _eventNameToCount() {
      return new (G.IdentityMapOfString$int()).new();
    },
    set _eventNameToCount(value) {
      if (value == null) dart.nullFailed(I[113], 193, 18, "_eventNameToCount");
    },
    /*developer._currentTag*/get _currentTag() {
      return developer._FakeUserTag._defaultTag;
    },
    set _currentTag(value) {
      if (value == null) dart.nullFailed(I[113], 327, 5, "_currentTag");
    },
    /*developer._developerProfilingData*/get _developerProfilingData() {
      return G.JSArrayOfMapOfString$dynamic().of([]);
    },
    set _developerProfilingData(value) {
      if (value == null) dart.nullFailed(I[118], 9, 28, "_developerProfilingData");
    },
    /*developer._hasTimeline*/get _hasTimeline() {
      return true;
    },
    /*developer._begin*/get _begin() {
      return 1;
    },
    /*developer._end*/get _end() {
      return 2;
    },
    /*developer._instant*/get _instant() {
      return 4;
    },
    /*developer._asyncBegin*/get _asyncBegin() {
      return 5;
    },
    /*developer._asyncInstant*/get _asyncInstant() {
      return 6;
    },
    /*developer._asyncEnd*/get _asyncEnd() {
      return 7;
    },
    /*developer._flowBegin*/get _flowBegin() {
      return 9;
    },
    /*developer._flowStep*/get _flowStep() {
      return 10;
    },
    /*developer._flowEnd*/get _flowEnd() {
      return 11;
    },
    /*developer._noFlowId*/get _noFlowId() {
      return -1;
    }
  }, false);
  io.IOException = class IOException extends core.Object {
    toString() {
      return "IOException";
    }
  };
  (io.IOException.new = function() {
    ;
  }).prototype = io.IOException.prototype;
  dart.addRtiResources(io.IOException, ["io|IOException", "core|Exception"]);
  dart.setLibraryUri(io.IOException, I[119]);
  dart.defineExtensionMethods(io.IOException, ['toString']);
  var message$2 = dart.privateName(io, "OSError.message");
  var errorCode$0 = dart.privateName(io, "OSError.errorCode");
  io.OSError = class OSError extends core.Object {
    get message() {
      return this[message$2];
    }
    set message(value) {
      super.message = value;
    }
    get errorCode() {
      return this[errorCode$0];
    }
    set errorCode(value) {
      super.errorCode = value;
    }
    static ['_#new#tearOff'](message = "", errorCode = -1) {
      if (message == null) dart.nullFailed(I[120], 88, 23, "message");
      if (errorCode == null) dart.nullFailed(I[120], 88, 42, "errorCode");
      return new io.OSError.new(message, errorCode);
    }
    toString() {
      let t$36160, t$36160$, t$36160$0;
      let sb = new core.StringBuffer.new();
      sb.write("OS Error");
      if (this.message[$isNotEmpty]) {
        t$36160 = sb;
        (() => {
          t$36160.write(": ");
          t$36160.write(this.message);
          return t$36160;
        })();
        if (this.errorCode !== -1) {
          t$36160$ = sb;
          (() => {
            t$36160$.write(", errno = ");
            t$36160$.write(dart.toString(this.errorCode));
            return t$36160$;
          })();
        }
      } else if (this.errorCode !== -1) {
        t$36160$0 = sb;
        (() => {
          t$36160$0.write(": errno = ");
          t$36160$0.write(dart.toString(this.errorCode));
          return t$36160$0;
        })();
      }
      return dart.toString(sb);
    }
  };
  (io.OSError.new = function(message = "", errorCode = -1) {
    if (message == null) dart.nullFailed(I[120], 88, 23, "message");
    if (errorCode == null) dart.nullFailed(I[120], 88, 42, "errorCode");
    this[message$2] = message;
    this[errorCode$0] = errorCode;
    ;
  }).prototype = io.OSError.prototype;
  dart.addRtiResources(io.OSError, ["io|OSError", "core|Exception"]);
  dart.setLibraryUri(io.OSError, I[119]);
  dart.setFieldSignature(io.OSError, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    errorCode: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.OSError))));
  dart.setStaticFieldSignature(io.OSError, () => ['noErrorCode']);
  dart.defineExtensionMethods(io.OSError, ['toString']);
  dart.defineLazy(io.OSError, {
    /*io.OSError.noErrorCode*/get noErrorCode() {
      return -1;
    }
  }, false);
  io._BufferAndStart = class _BufferAndStart extends core.Object {
    static ['_#new#tearOff'](buffer, start) {
      if (buffer == null) dart.nullFailed(I[120], 116, 24, "buffer");
      if (start == null) dart.nullFailed(I[120], 116, 37, "start");
      return new io._BufferAndStart.new(buffer, start);
    }
  };
  (io._BufferAndStart.new = function(buffer, start) {
    if (buffer == null) dart.nullFailed(I[120], 116, 24, "buffer");
    if (start == null) dart.nullFailed(I[120], 116, 37, "start");
    this.buffer = buffer;
    this.start = start;
    ;
  }).prototype = io._BufferAndStart.prototype;
  dart.addRtiResources(io._BufferAndStart, ["io|_BufferAndStart"]);
  dart.setLibraryUri(io._BufferAndStart, I[119]);
  dart.setFieldSignature(io._BufferAndStart, () => dart.global.Object.setPrototypeOf({
    buffer: {type: T$.ListOfint(), isConst: false, isFinal: false, libraryUri: I[11]},
    start: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._BufferAndStart))));
  io._IOCrypto = class _IOCrypto extends core.Object {
    static getRandomBytes(count) {
      if (count == null) dart.nullFailed(I[121], 225, 39, "count");
      dart.throw(new core.UnsupportedError.new("_IOCrypto.getRandomBytes"));
    }
    static ['_#new#tearOff']() {
      return new io._IOCrypto.new();
    }
  };
  (io._IOCrypto.new = function() {
    ;
  }).prototype = io._IOCrypto.prototype;
  dart.addRtiResources(io._IOCrypto, ["io|_IOCrypto"]);
  dart.setStaticMethodSignature(io._IOCrypto, () => ['getRandomBytes']);
  dart.setLibraryUri(io._IOCrypto, I[119]);
  io.ZLibOption = class ZLibOption extends core.Object {};
  (io.ZLibOption.new = function() {
    ;
  }).prototype = io.ZLibOption.prototype;
  dart.addRtiResources(io.ZLibOption, ["io|ZLibOption"]);
  dart.setLibraryUri(io.ZLibOption, I[119]);
  dart.setStaticFieldSignature(io.ZLibOption, () => ['minWindowBits', 'maxWindowBits', 'defaultWindowBits', 'minLevel', 'maxLevel', 'defaultLevel', 'minMemLevel', 'maxMemLevel', 'defaultMemLevel', 'strategyFiltered', 'strategyHuffmanOnly', 'strategyRle', 'strategyFixed', 'strategyDefault']);
  dart.defineLazy(io.ZLibOption, {
    /*io.ZLibOption.minWindowBits*/get minWindowBits() {
      return 8;
    },
    /*io.ZLibOption.maxWindowBits*/get maxWindowBits() {
      return 15;
    },
    /*io.ZLibOption.defaultWindowBits*/get defaultWindowBits() {
      return 15;
    },
    /*io.ZLibOption.minLevel*/get minLevel() {
      return -1;
    },
    /*io.ZLibOption.maxLevel*/get maxLevel() {
      return 9;
    },
    /*io.ZLibOption.defaultLevel*/get defaultLevel() {
      return 6;
    },
    /*io.ZLibOption.minMemLevel*/get minMemLevel() {
      return 1;
    },
    /*io.ZLibOption.maxMemLevel*/get maxMemLevel() {
      return 9;
    },
    /*io.ZLibOption.defaultMemLevel*/get defaultMemLevel() {
      return 8;
    },
    /*io.ZLibOption.strategyFiltered*/get strategyFiltered() {
      return 1;
    },
    /*io.ZLibOption.strategyHuffmanOnly*/get strategyHuffmanOnly() {
      return 2;
    },
    /*io.ZLibOption.strategyRle*/get strategyRle() {
      return 3;
    },
    /*io.ZLibOption.strategyFixed*/get strategyFixed() {
      return 4;
    },
    /*io.ZLibOption.strategyDefault*/get strategyDefault() {
      return 0;
    }
  }, false);
  var gzip$ = dart.privateName(io, "ZLibCodec.gzip");
  var level$ = dart.privateName(io, "ZLibCodec.level");
  var memLevel$ = dart.privateName(io, "ZLibCodec.memLevel");
  var strategy$ = dart.privateName(io, "ZLibCodec.strategy");
  var windowBits$ = dart.privateName(io, "ZLibCodec.windowBits");
  var raw$ = dart.privateName(io, "ZLibCodec.raw");
  var dictionary$ = dart.privateName(io, "ZLibCodec.dictionary");
  io.ZLibCodec = class ZLibCodec extends G.CodecOfListOfint$ListOfint() {
    get gzip() {
      return this[gzip$];
    }
    set gzip(value) {
      super.gzip = value;
    }
    get level() {
      return this[level$];
    }
    set level(value) {
      super.level = value;
    }
    get memLevel() {
      return this[memLevel$];
    }
    set memLevel(value) {
      super.memLevel = value;
    }
    get strategy() {
      return this[strategy$];
    }
    set strategy(value) {
      super.strategy = value;
    }
    get windowBits() {
      return this[windowBits$];
    }
    set windowBits(value) {
      super.windowBits = value;
    }
    get raw() {
      return this[raw$];
    }
    set raw(value) {
      super.raw = value;
    }
    get dictionary() {
      return this[dictionary$];
    }
    set dictionary(value) {
      super.dictionary = value;
    }
    static ['_#new#tearOff'](opts) {
      let level = opts && 'level' in opts ? opts.level : 6;
      if (level == null) dart.nullFailed(I[122], 110, 13, "level");
      let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
      if (windowBits == null) dart.nullFailed(I[122], 111, 12, "windowBits");
      let memLevel = opts && 'memLevel' in opts ? opts.memLevel : 8;
      if (memLevel == null) dart.nullFailed(I[122], 112, 12, "memLevel");
      let strategy = opts && 'strategy' in opts ? opts.strategy : 0;
      if (strategy == null) dart.nullFailed(I[122], 113, 12, "strategy");
      let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
      let raw = opts && 'raw' in opts ? opts.raw : false;
      if (raw == null) dart.nullFailed(I[122], 115, 12, "raw");
      let gzip = opts && 'gzip' in opts ? opts.gzip : false;
      if (gzip == null) dart.nullFailed(I[122], 116, 12, "gzip");
      return new io.ZLibCodec.new({level: level, windowBits: windowBits, memLevel: memLevel, strategy: strategy, dictionary: dictionary, raw: raw, gzip: gzip});
    }
    static ['_#_default#tearOff']() {
      return new io.ZLibCodec._default();
    }
    get encoder() {
      return new io.ZLibEncoder.new({gzip: false, level: this.level, windowBits: this.windowBits, memLevel: this.memLevel, strategy: this.strategy, dictionary: this.dictionary, raw: this.raw});
    }
    get decoder() {
      return new io.ZLibDecoder.new({windowBits: this.windowBits, dictionary: this.dictionary, raw: this.raw});
    }
  };
  (io.ZLibCodec.new = function(opts) {
    let level = opts && 'level' in opts ? opts.level : 6;
    if (level == null) dart.nullFailed(I[122], 110, 13, "level");
    let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
    if (windowBits == null) dart.nullFailed(I[122], 111, 12, "windowBits");
    let memLevel = opts && 'memLevel' in opts ? opts.memLevel : 8;
    if (memLevel == null) dart.nullFailed(I[122], 112, 12, "memLevel");
    let strategy = opts && 'strategy' in opts ? opts.strategy : 0;
    if (strategy == null) dart.nullFailed(I[122], 113, 12, "strategy");
    let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
    let raw = opts && 'raw' in opts ? opts.raw : false;
    if (raw == null) dart.nullFailed(I[122], 115, 12, "raw");
    let gzip = opts && 'gzip' in opts ? opts.gzip : false;
    if (gzip == null) dart.nullFailed(I[122], 116, 12, "gzip");
    this[level$] = level;
    this[windowBits$] = windowBits;
    this[memLevel$] = memLevel;
    this[strategy$] = strategy;
    this[dictionary$] = dictionary;
    this[raw$] = raw;
    this[gzip$] = gzip;
    this.$ti = this.$ti || T$2.ZLibCodec();
    dart.global.Object.getPrototypeOf(io.ZLibCodec).new.call(this);
    io._validateZLibeLevel(this.level);
    io._validateZLibMemLevel(this.memLevel);
    io._validateZLibStrategy(this.strategy);
    io._validateZLibWindowBits(this.windowBits);
  }).prototype = io.ZLibCodec.prototype;
  (io.ZLibCodec._default = function() {
    this[level$] = 6;
    this[windowBits$] = 15;
    this[memLevel$] = 8;
    this[strategy$] = 0;
    this[raw$] = false;
    this[gzip$] = false;
    this[dictionary$] = null;
    this.$ti = this.$ti || T$2.ZLibCodec();
    dart.global.Object.getPrototypeOf(io.ZLibCodec).new.call(this);
    ;
  }).prototype = io.ZLibCodec.prototype;
  dart.addRtiResources(io.ZLibCodec, ["io|ZLibCodec"]);
  dart.setGetterSignature(io.ZLibCodec, () => dart.global.Object.setPrototypeOf({
    encoder: T$2.ZLibEncoder(),
    decoder: T$2.ZLibDecoder()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io.ZLibCodec))));
  dart.setLibraryUri(io.ZLibCodec, I[119]);
  dart.setFieldSignature(io.ZLibCodec, () => dart.global.Object.setPrototypeOf({
    gzip: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    level: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    memLevel: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    strategy: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    windowBits: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    raw: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    dictionary: {type: T$2.ListNOfint(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.ZLibCodec))));
  var gzip$0 = dart.privateName(io, "GZipCodec.gzip");
  var level$0 = dart.privateName(io, "GZipCodec.level");
  var memLevel$0 = dart.privateName(io, "GZipCodec.memLevel");
  var strategy$0 = dart.privateName(io, "GZipCodec.strategy");
  var windowBits$0 = dart.privateName(io, "GZipCodec.windowBits");
  var dictionary$0 = dart.privateName(io, "GZipCodec.dictionary");
  var raw$0 = dart.privateName(io, "GZipCodec.raw");
  io.GZipCodec = class GZipCodec extends G.CodecOfListOfint$ListOfint() {
    get gzip() {
      return this[gzip$0];
    }
    set gzip(value) {
      super.gzip = value;
    }
    get level() {
      return this[level$0];
    }
    set level(value) {
      super.level = value;
    }
    get memLevel() {
      return this[memLevel$0];
    }
    set memLevel(value) {
      super.memLevel = value;
    }
    get strategy() {
      return this[strategy$0];
    }
    set strategy(value) {
      super.strategy = value;
    }
    get windowBits() {
      return this[windowBits$0];
    }
    set windowBits(value) {
      super.windowBits = value;
    }
    get dictionary() {
      return this[dictionary$0];
    }
    set dictionary(value) {
      super.dictionary = value;
    }
    get raw() {
      return this[raw$0];
    }
    set raw(value) {
      super.raw = value;
    }
    static ['_#new#tearOff'](opts) {
      let level = opts && 'level' in opts ? opts.level : 6;
      if (level == null) dart.nullFailed(I[122], 201, 13, "level");
      let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
      if (windowBits == null) dart.nullFailed(I[122], 202, 12, "windowBits");
      let memLevel = opts && 'memLevel' in opts ? opts.memLevel : 8;
      if (memLevel == null) dart.nullFailed(I[122], 203, 12, "memLevel");
      let strategy = opts && 'strategy' in opts ? opts.strategy : 0;
      if (strategy == null) dart.nullFailed(I[122], 204, 12, "strategy");
      let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
      let raw = opts && 'raw' in opts ? opts.raw : false;
      if (raw == null) dart.nullFailed(I[122], 206, 12, "raw");
      let gzip = opts && 'gzip' in opts ? opts.gzip : true;
      if (gzip == null) dart.nullFailed(I[122], 207, 12, "gzip");
      return new io.GZipCodec.new({level: level, windowBits: windowBits, memLevel: memLevel, strategy: strategy, dictionary: dictionary, raw: raw, gzip: gzip});
    }
    static ['_#_default#tearOff']() {
      return new io.GZipCodec._default();
    }
    get encoder() {
      return new io.ZLibEncoder.new({gzip: true, level: this.level, windowBits: this.windowBits, memLevel: this.memLevel, strategy: this.strategy, dictionary: this.dictionary, raw: this.raw});
    }
    get decoder() {
      return new io.ZLibDecoder.new({gzip: true, windowBits: this.windowBits, dictionary: this.dictionary, raw: this.raw});
    }
  };
  (io.GZipCodec.new = function(opts) {
    let level = opts && 'level' in opts ? opts.level : 6;
    if (level == null) dart.nullFailed(I[122], 201, 13, "level");
    let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
    if (windowBits == null) dart.nullFailed(I[122], 202, 12, "windowBits");
    let memLevel = opts && 'memLevel' in opts ? opts.memLevel : 8;
    if (memLevel == null) dart.nullFailed(I[122], 203, 12, "memLevel");
    let strategy = opts && 'strategy' in opts ? opts.strategy : 0;
    if (strategy == null) dart.nullFailed(I[122], 204, 12, "strategy");
    let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
    let raw = opts && 'raw' in opts ? opts.raw : false;
    if (raw == null) dart.nullFailed(I[122], 206, 12, "raw");
    let gzip = opts && 'gzip' in opts ? opts.gzip : true;
    if (gzip == null) dart.nullFailed(I[122], 207, 12, "gzip");
    this[level$0] = level;
    this[windowBits$0] = windowBits;
    this[memLevel$0] = memLevel;
    this[strategy$0] = strategy;
    this[dictionary$0] = dictionary;
    this[raw$0] = raw;
    this[gzip$0] = gzip;
    this.$ti = this.$ti || T$2.GZipCodec();
    dart.global.Object.getPrototypeOf(io.GZipCodec).new.call(this);
    io._validateZLibeLevel(this.level);
    io._validateZLibMemLevel(this.memLevel);
    io._validateZLibStrategy(this.strategy);
    io._validateZLibWindowBits(this.windowBits);
  }).prototype = io.GZipCodec.prototype;
  (io.GZipCodec._default = function() {
    this[level$0] = 6;
    this[windowBits$0] = 15;
    this[memLevel$0] = 8;
    this[strategy$0] = 0;
    this[raw$0] = false;
    this[gzip$0] = true;
    this[dictionary$0] = null;
    this.$ti = this.$ti || T$2.GZipCodec();
    dart.global.Object.getPrototypeOf(io.GZipCodec).new.call(this);
    ;
  }).prototype = io.GZipCodec.prototype;
  dart.addRtiResources(io.GZipCodec, ["io|GZipCodec"]);
  dart.setGetterSignature(io.GZipCodec, () => dart.global.Object.setPrototypeOf({
    encoder: T$2.ZLibEncoder(),
    decoder: T$2.ZLibDecoder()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io.GZipCodec))));
  dart.setLibraryUri(io.GZipCodec, I[119]);
  dart.setFieldSignature(io.GZipCodec, () => dart.global.Object.setPrototypeOf({
    gzip: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    level: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    memLevel: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    strategy: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    windowBits: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    dictionary: {type: T$2.ListNOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    raw: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.GZipCodec))));
  var gzip$1 = dart.privateName(io, "ZLibEncoder.gzip");
  var level$1 = dart.privateName(io, "ZLibEncoder.level");
  var memLevel$1 = dart.privateName(io, "ZLibEncoder.memLevel");
  var strategy$1 = dart.privateName(io, "ZLibEncoder.strategy");
  var windowBits$1 = dart.privateName(io, "ZLibEncoder.windowBits");
  var dictionary$1 = dart.privateName(io, "ZLibEncoder.dictionary");
  var raw$1 = dart.privateName(io, "ZLibEncoder.raw");
  io.ZLibEncoder = class ZLibEncoder extends G.ConverterOfListOfint$ListOfint() {
    get gzip() {
      return this[gzip$1];
    }
    set gzip(value) {
      super.gzip = value;
    }
    get level() {
      return this[level$1];
    }
    set level(value) {
      super.level = value;
    }
    get memLevel() {
      return this[memLevel$1];
    }
    set memLevel(value) {
      super.memLevel = value;
    }
    get strategy() {
      return this[strategy$1];
    }
    set strategy(value) {
      super.strategy = value;
    }
    get windowBits() {
      return this[windowBits$1];
    }
    set windowBits(value) {
      super.windowBits = value;
    }
    get dictionary() {
      return this[dictionary$1];
    }
    set dictionary(value) {
      super.dictionary = value;
    }
    get raw() {
      return this[raw$1];
    }
    set raw(value) {
      super.raw = value;
    }
    static ['_#new#tearOff'](opts) {
      let gzip = opts && 'gzip' in opts ? opts.gzip : false;
      if (gzip == null) dart.nullFailed(I[122], 289, 13, "gzip");
      let level = opts && 'level' in opts ? opts.level : 6;
      if (level == null) dart.nullFailed(I[122], 290, 12, "level");
      let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
      if (windowBits == null) dart.nullFailed(I[122], 291, 12, "windowBits");
      let memLevel = opts && 'memLevel' in opts ? opts.memLevel : 8;
      if (memLevel == null) dart.nullFailed(I[122], 292, 12, "memLevel");
      let strategy = opts && 'strategy' in opts ? opts.strategy : 0;
      if (strategy == null) dart.nullFailed(I[122], 293, 12, "strategy");
      let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
      let raw = opts && 'raw' in opts ? opts.raw : false;
      if (raw == null) dart.nullFailed(I[122], 295, 12, "raw");
      return new io.ZLibEncoder.new({gzip: gzip, level: level, windowBits: windowBits, memLevel: memLevel, strategy: strategy, dictionary: dictionary, raw: raw});
    }
    convert(bytes) {
      let t$36160;
      T$.ListOfint()[_as](bytes);
      if (bytes == null) dart.nullFailed(I[122], 304, 31, "bytes");
      let sink = new io._BufferSink.new();
      t$36160 = this.startChunkedConversion(sink);
      (() => {
        t$36160.add(bytes);
        t$36160.close();
        return t$36160;
      })();
      return sink.builder.takeBytes();
    }
    startChunkedConversion(sink) {
      T$2.SinkOfListOfint()[_as](sink);
      if (sink == null) dart.nullFailed(I[122], 318, 61, "sink");
      if (!T$2.ByteConversionSink()[_is](sink)) {
        sink = new convert._ByteAdapterSink.new(sink);
      }
      return new io._ZLibEncoderSink.__(sink, this.gzip, this.level, this.windowBits, this.memLevel, this.strategy, this.dictionary, this.raw);
    }
  };
  (io.ZLibEncoder.new = function(opts) {
    let gzip = opts && 'gzip' in opts ? opts.gzip : false;
    if (gzip == null) dart.nullFailed(I[122], 289, 13, "gzip");
    let level = opts && 'level' in opts ? opts.level : 6;
    if (level == null) dart.nullFailed(I[122], 290, 12, "level");
    let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
    if (windowBits == null) dart.nullFailed(I[122], 291, 12, "windowBits");
    let memLevel = opts && 'memLevel' in opts ? opts.memLevel : 8;
    if (memLevel == null) dart.nullFailed(I[122], 292, 12, "memLevel");
    let strategy = opts && 'strategy' in opts ? opts.strategy : 0;
    if (strategy == null) dart.nullFailed(I[122], 293, 12, "strategy");
    let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
    let raw = opts && 'raw' in opts ? opts.raw : false;
    if (raw == null) dart.nullFailed(I[122], 295, 12, "raw");
    this[gzip$1] = gzip;
    this[level$1] = level;
    this[windowBits$1] = windowBits;
    this[memLevel$1] = memLevel;
    this[strategy$1] = strategy;
    this[dictionary$1] = dictionary;
    this[raw$1] = raw;
    this.$ti = this.$ti || T$2.ZLibEncoder();
    dart.global.Object.getPrototypeOf(io.ZLibEncoder).new.call(this);
    io._validateZLibeLevel(this.level);
    io._validateZLibMemLevel(this.memLevel);
    io._validateZLibStrategy(this.strategy);
    io._validateZLibWindowBits(this.windowBits);
  }).prototype = io.ZLibEncoder.prototype;
  dart.addRtiResources(io.ZLibEncoder, ["io|ZLibEncoder"]);
  dart.setMethodSignature(io.ZLibEncoder, () => dart.global.Object.setPrototypeOf({
    convert: T$2.ObjectNToListOfint(),
    startChunkedConversion: T$2.ObjectNToByteConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io.ZLibEncoder))));
  dart.setLibraryUri(io.ZLibEncoder, I[119]);
  dart.setFieldSignature(io.ZLibEncoder, () => dart.global.Object.setPrototypeOf({
    gzip: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    level: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    memLevel: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    strategy: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    windowBits: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    dictionary: {type: T$2.ListNOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    raw: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.ZLibEncoder))));
  var gzip$2 = dart.privateName(io, "ZLibDecoder.gzip");
  var windowBits$2 = dart.privateName(io, "ZLibDecoder.windowBits");
  var dictionary$2 = dart.privateName(io, "ZLibDecoder.dictionary");
  var raw$2 = dart.privateName(io, "ZLibDecoder.raw");
  io.ZLibDecoder = class ZLibDecoder extends G.ConverterOfListOfint$ListOfint() {
    get gzip() {
      return this[gzip$2];
    }
    set gzip(value) {
      super.gzip = value;
    }
    get windowBits() {
      return this[windowBits$2];
    }
    set windowBits(value) {
      super.windowBits = value;
    }
    get dictionary() {
      return this[dictionary$2];
    }
    set dictionary(value) {
      super.dictionary = value;
    }
    get raw() {
      return this[raw$2];
    }
    set raw(value) {
      super.raw = value;
    }
    static ['_#new#tearOff'](opts) {
      let gzip = opts && 'gzip' in opts ? opts.gzip : false;
      if (gzip == null) dart.nullFailed(I[122], 353, 13, "gzip");
      let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
      if (windowBits == null) dart.nullFailed(I[122], 354, 12, "windowBits");
      let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
      let raw = opts && 'raw' in opts ? opts.raw : false;
      if (raw == null) dart.nullFailed(I[122], 356, 12, "raw");
      return new io.ZLibDecoder.new({gzip: gzip, windowBits: windowBits, dictionary: dictionary, raw: raw});
    }
    convert(bytes) {
      let t$36160;
      T$.ListOfint()[_as](bytes);
      if (bytes == null) dart.nullFailed(I[122], 362, 31, "bytes");
      let sink = new io._BufferSink.new();
      t$36160 = this.startChunkedConversion(sink);
      (() => {
        t$36160.add(bytes);
        t$36160.close();
        return t$36160;
      })();
      return sink.builder.takeBytes();
    }
    startChunkedConversion(sink) {
      T$2.SinkOfListOfint()[_as](sink);
      if (sink == null) dart.nullFailed(I[122], 375, 61, "sink");
      if (!T$2.ByteConversionSink()[_is](sink)) {
        sink = new convert._ByteAdapterSink.new(sink);
      }
      return new io._ZLibDecoderSink.__(sink, this.gzip, this.windowBits, this.dictionary, this.raw);
    }
  };
  (io.ZLibDecoder.new = function(opts) {
    let gzip = opts && 'gzip' in opts ? opts.gzip : false;
    if (gzip == null) dart.nullFailed(I[122], 353, 13, "gzip");
    let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
    if (windowBits == null) dart.nullFailed(I[122], 354, 12, "windowBits");
    let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
    let raw = opts && 'raw' in opts ? opts.raw : false;
    if (raw == null) dart.nullFailed(I[122], 356, 12, "raw");
    this[gzip$2] = gzip;
    this[windowBits$2] = windowBits;
    this[dictionary$2] = dictionary;
    this[raw$2] = raw;
    this.$ti = this.$ti || T$2.ZLibDecoder();
    dart.global.Object.getPrototypeOf(io.ZLibDecoder).new.call(this);
    io._validateZLibWindowBits(this.windowBits);
  }).prototype = io.ZLibDecoder.prototype;
  dart.addRtiResources(io.ZLibDecoder, ["io|ZLibDecoder"]);
  dart.setMethodSignature(io.ZLibDecoder, () => dart.global.Object.setPrototypeOf({
    convert: T$2.ObjectNToListOfint(),
    startChunkedConversion: T$2.ObjectNToByteConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io.ZLibDecoder))));
  dart.setLibraryUri(io.ZLibDecoder, I[119]);
  dart.setFieldSignature(io.ZLibDecoder, () => dart.global.Object.setPrototypeOf({
    gzip: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    windowBits: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    dictionary: {type: T$2.ListNOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    raw: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.ZLibDecoder))));
  io.RawZLibFilter = class RawZLibFilter extends core.Object {
    static deflateFilter(opts) {
      let gzip = opts && 'gzip' in opts ? opts.gzip : false;
      if (gzip == null) dart.nullFailed(I[122], 388, 10, "gzip");
      let level = opts && 'level' in opts ? opts.level : 6;
      if (level == null) dart.nullFailed(I[122], 389, 9, "level");
      let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
      if (windowBits == null) dart.nullFailed(I[122], 390, 9, "windowBits");
      let memLevel = opts && 'memLevel' in opts ? opts.memLevel : 8;
      if (memLevel == null) dart.nullFailed(I[122], 391, 9, "memLevel");
      let strategy = opts && 'strategy' in opts ? opts.strategy : 0;
      if (strategy == null) dart.nullFailed(I[122], 392, 9, "strategy");
      let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
      let raw = opts && 'raw' in opts ? opts.raw : false;
      if (raw == null) dart.nullFailed(I[122], 394, 10, "raw");
      return io.RawZLibFilter._makeZLibDeflateFilter(gzip, level, windowBits, memLevel, strategy, dictionary, raw);
    }
    static ['_#deflateFilter#tearOff'](opts) {
      let gzip = opts && 'gzip' in opts ? opts.gzip : false;
      if (gzip == null) dart.nullFailed(I[122], 388, 10, "gzip");
      let level = opts && 'level' in opts ? opts.level : 6;
      if (level == null) dart.nullFailed(I[122], 389, 9, "level");
      let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
      if (windowBits == null) dart.nullFailed(I[122], 390, 9, "windowBits");
      let memLevel = opts && 'memLevel' in opts ? opts.memLevel : 8;
      if (memLevel == null) dart.nullFailed(I[122], 391, 9, "memLevel");
      let strategy = opts && 'strategy' in opts ? opts.strategy : 0;
      if (strategy == null) dart.nullFailed(I[122], 392, 9, "strategy");
      let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
      let raw = opts && 'raw' in opts ? opts.raw : false;
      if (raw == null) dart.nullFailed(I[122], 394, 10, "raw");
      return io.RawZLibFilter.deflateFilter({gzip: gzip, level: level, windowBits: windowBits, memLevel: memLevel, strategy: strategy, dictionary: dictionary, raw: raw});
    }
    static inflateFilter(opts) {
      let gzip = opts && 'gzip' in opts ? opts.gzip : false;
      if (gzip == null) dart.nullFailed(I[122], 403, 10, "gzip");
      let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
      if (windowBits == null) dart.nullFailed(I[122], 404, 9, "windowBits");
      let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
      let raw = opts && 'raw' in opts ? opts.raw : false;
      if (raw == null) dart.nullFailed(I[122], 406, 10, "raw");
      return io.RawZLibFilter._makeZLibInflateFilter(gzip, windowBits, dictionary, raw);
    }
    static ['_#inflateFilter#tearOff'](opts) {
      let gzip = opts && 'gzip' in opts ? opts.gzip : false;
      if (gzip == null) dart.nullFailed(I[122], 403, 10, "gzip");
      let windowBits = opts && 'windowBits' in opts ? opts.windowBits : 15;
      if (windowBits == null) dart.nullFailed(I[122], 404, 9, "windowBits");
      let dictionary = opts && 'dictionary' in opts ? opts.dictionary : null;
      let raw = opts && 'raw' in opts ? opts.raw : false;
      if (raw == null) dart.nullFailed(I[122], 406, 10, "raw");
      return io.RawZLibFilter.inflateFilter({gzip: gzip, windowBits: windowBits, dictionary: dictionary, raw: raw});
    }
    static _makeZLibDeflateFilter(gzip, level, windowBits, memLevel, strategy, dictionary, raw) {
      if (gzip == null) dart.nullFailed(I[121], 661, 12, "gzip");
      if (level == null) dart.nullFailed(I[121], 662, 11, "level");
      if (windowBits == null) dart.nullFailed(I[121], 663, 11, "windowBits");
      if (memLevel == null) dart.nullFailed(I[121], 664, 11, "memLevel");
      if (strategy == null) dart.nullFailed(I[121], 665, 11, "strategy");
      if (raw == null) dart.nullFailed(I[121], 667, 12, "raw");
      dart.throw(new core.UnsupportedError.new("_newZLibDeflateFilter"));
    }
    static _makeZLibInflateFilter(gzip, windowBits, dictionary, raw) {
      if (gzip == null) dart.nullFailed(I[121], 673, 12, "gzip");
      if (windowBits == null) dart.nullFailed(I[121], 673, 22, "windowBits");
      if (raw == null) dart.nullFailed(I[121], 673, 62, "raw");
      dart.throw(new core.UnsupportedError.new("_newZLibInflateFilter"));
    }
  };
  (io.RawZLibFilter[dart.mixinNew] = function() {
  }).prototype = io.RawZLibFilter.prototype;
  dart.addRtiResources(io.RawZLibFilter, ["io|RawZLibFilter"]);
  dart.setStaticMethodSignature(io.RawZLibFilter, () => ['deflateFilter', 'inflateFilter', '_makeZLibDeflateFilter', '_makeZLibInflateFilter']);
  dart.setLibraryUri(io.RawZLibFilter, I[119]);
  io._BufferSink = class _BufferSink extends convert.ByteConversionSink {
    add(chunk) {
      T$.ListOfint()[_as](chunk);
      if (chunk == null) dart.nullFailed(I[122], 443, 22, "chunk");
      this.builder.add(chunk);
    }
    addSlice(chunk, start, end, isLast) {
      if (chunk == null) dart.nullFailed(I[122], 447, 27, "chunk");
      if (start == null) dart.nullFailed(I[122], 447, 38, "start");
      if (end == null) dart.nullFailed(I[122], 447, 49, "end");
      if (isLast == null) dart.nullFailed(I[122], 447, 59, "isLast");
      if (T$.Uint8List()[_is](chunk)) {
        let list = chunk;
        this.builder.add(typed_data.Uint8List.view(list[$buffer], dart.notNull(list[$offsetInBytes]) + dart.notNull(start), dart.notNull(end) - dart.notNull(start)));
      } else {
        this.builder.add(chunk[$sublist](start, end));
      }
    }
    close() {
    }
    static ['_#new#tearOff']() {
      return new io._BufferSink.new();
    }
  };
  (io._BufferSink.new = function() {
    this.builder = _internal.BytesBuilder.new({copy: false});
    dart.global.Object.getPrototypeOf(io._BufferSink).new.call(this);
    ;
  }).prototype = io._BufferSink.prototype;
  dart.addRtiResources(io._BufferSink, ["io|_BufferSink"]);
  dart.setMethodSignature(io._BufferSink, () => dart.global.Object.setPrototypeOf({
    add: T$.ObjectNTovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._BufferSink))));
  dart.setLibraryUri(io._BufferSink, I[119]);
  dart.setFieldSignature(io._BufferSink, () => dart.global.Object.setPrototypeOf({builder: {type: T$2.BytesBuilder(), isConst: false, isFinal: true, libraryUri: I[36]}}, dart.getFields(dart.global.Object.getPrototypeOf(io._BufferSink))));
  var _closed = dart.privateName(io, "_closed");
  var _empty = dart.privateName(io, "_empty");
  var _sink$1 = dart.privateName(io, "_sink");
  var _filter$ = dart.privateName(io, "_filter");
  io._FilterSink = class _FilterSink extends convert.ByteConversionSink {
    static ['_#new#tearOff'](_sink, _filter) {
      if (_sink == null) dart.nullFailed(I[122], 491, 20, "_sink");
      if (_filter == null) dart.nullFailed(I[122], 491, 32, "_filter");
      return new io._FilterSink.new(_sink, _filter);
    }
    add(data) {
      T$.ListOfint()[_as](data);
      if (data == null) dart.nullFailed(I[122], 493, 22, "data");
      this.addSlice(data, 0, data[$length], false);
    }
    addSlice(data, start, end, isLast) {
      if (data == null) dart.nullFailed(I[122], 497, 27, "data");
      if (start == null) dart.nullFailed(I[122], 497, 37, "start");
      if (end == null) dart.nullFailed(I[122], 497, 48, "end");
      if (isLast == null) dart.nullFailed(I[122], 497, 58, "isLast");
      if (dart.test(this[_closed])) return;
      core.RangeError.checkValidRange(start, end, data[$length]);
      try {
        this[_empty] = false;
        let bufferAndStart = io._ensureFastAndSerializableByteData(data, start, end);
        this[_filter$].process(bufferAndStart.buffer, bufferAndStart.start, dart.notNull(end) - (dart.notNull(start) - dart.notNull(bufferAndStart.start)));
        let out = null;
        while (true) {
          let out = this[_filter$].processed({flush: false});
          if (out == null) break;
          this[_sink$1].add(out);
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          this[_closed] = true;
          dart.rethrow(t$36$35e);
        } else
          throw t$36$35e;
      }
      if (dart.test(isLast)) this.close();
    }
    close() {
      if (dart.test(this[_closed])) return;
      if (dart.test(this[_empty])) this[_filter$].process(C[134] || CT.C134, 0, 0);
      try {
        while (true) {
          let out = this[_filter$].processed({end: true});
          if (out == null) break;
          this[_sink$1].add(out);
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          this[_closed] = true;
          dart.rethrow(t$36$35e);
        } else
          throw t$36$35e;
      }
      this[_closed] = true;
      this[_sink$1].close();
    }
  };
  (io._FilterSink.new = function(_sink, _filter) {
    if (_sink == null) dart.nullFailed(I[122], 491, 20, "_sink");
    if (_filter == null) dart.nullFailed(I[122], 491, 32, "_filter");
    this[_closed] = false;
    this[_empty] = true;
    this[_sink$1] = _sink;
    this[_filter$] = _filter;
    dart.global.Object.getPrototypeOf(io._FilterSink).new.call(this);
    ;
  }).prototype = io._FilterSink.prototype;
  dart.addRtiResources(io._FilterSink, ["io|_FilterSink"]);
  dart.setMethodSignature(io._FilterSink, () => dart.global.Object.setPrototypeOf({
    add: T$.ObjectNTovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._FilterSink))));
  dart.setLibraryUri(io._FilterSink, I[119]);
  dart.setFieldSignature(io._FilterSink, () => dart.global.Object.setPrototypeOf({
    [_filter$]: {type: T$2.RawZLibFilter(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_sink$1]: {type: T$2.ByteConversionSink(), isConst: false, isFinal: true, libraryUri: I[41]},
    [_closed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_empty]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._FilterSink))));
  io._ZLibEncoderSink = class _ZLibEncoderSink extends io._FilterSink {
    static ['_#_#tearOff'](sink, gzip, level, windowBits, memLevel, strategy, dictionary, raw) {
      if (sink == null) dart.nullFailed(I[122], 462, 26, "sink");
      if (gzip == null) dart.nullFailed(I[122], 463, 12, "gzip");
      if (level == null) dart.nullFailed(I[122], 464, 11, "level");
      if (windowBits == null) dart.nullFailed(I[122], 465, 11, "windowBits");
      if (memLevel == null) dart.nullFailed(I[122], 466, 11, "memLevel");
      if (strategy == null) dart.nullFailed(I[122], 467, 11, "strategy");
      if (raw == null) dart.nullFailed(I[122], 469, 12, "raw");
      return new io._ZLibEncoderSink.__(sink, gzip, level, windowBits, memLevel, strategy, dictionary, raw);
    }
  };
  (io._ZLibEncoderSink.__ = function(sink, gzip, level, windowBits, memLevel, strategy, dictionary, raw) {
    if (sink == null) dart.nullFailed(I[122], 462, 26, "sink");
    if (gzip == null) dart.nullFailed(I[122], 463, 12, "gzip");
    if (level == null) dart.nullFailed(I[122], 464, 11, "level");
    if (windowBits == null) dart.nullFailed(I[122], 465, 11, "windowBits");
    if (memLevel == null) dart.nullFailed(I[122], 466, 11, "memLevel");
    if (strategy == null) dart.nullFailed(I[122], 467, 11, "strategy");
    if (raw == null) dart.nullFailed(I[122], 469, 12, "raw");
    dart.global.Object.getPrototypeOf(io._ZLibEncoderSink).new.call(this, sink, io.RawZLibFilter._makeZLibDeflateFilter(gzip, level, windowBits, memLevel, strategy, dictionary, raw));
    ;
  }).prototype = io._ZLibEncoderSink.prototype;
  dart.addRtiResources(io._ZLibEncoderSink, ["io|_ZLibEncoderSink"]);
  dart.setLibraryUri(io._ZLibEncoderSink, I[119]);
  io._ZLibDecoderSink = class _ZLibDecoderSink extends io._FilterSink {
    static ['_#_#tearOff'](sink, gzip, windowBits, dictionary, raw) {
      if (sink == null) dart.nullFailed(I[122], 477, 41, "sink");
      if (gzip == null) dart.nullFailed(I[122], 477, 52, "gzip");
      if (windowBits == null) dart.nullFailed(I[122], 477, 62, "windowBits");
      if (raw == null) dart.nullFailed(I[122], 478, 35, "raw");
      return new io._ZLibDecoderSink.__(sink, gzip, windowBits, dictionary, raw);
    }
  };
  (io._ZLibDecoderSink.__ = function(sink, gzip, windowBits, dictionary, raw) {
    if (sink == null) dart.nullFailed(I[122], 477, 41, "sink");
    if (gzip == null) dart.nullFailed(I[122], 477, 52, "gzip");
    if (windowBits == null) dart.nullFailed(I[122], 477, 62, "windowBits");
    if (raw == null) dart.nullFailed(I[122], 478, 35, "raw");
    dart.global.Object.getPrototypeOf(io._ZLibDecoderSink).new.call(this, sink, io.RawZLibFilter._makeZLibInflateFilter(gzip, windowBits, dictionary, raw));
    ;
  }).prototype = io._ZLibDecoderSink.prototype;
  dart.addRtiResources(io._ZLibDecoderSink, ["io|_ZLibDecoderSink"]);
  dart.setLibraryUri(io._ZLibDecoderSink, I[119]);
  io.Directory = class Directory extends core.Object {
    static new(path) {
      if (path == null) dart.nullFailed(I[123], 112, 28, "path");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return new io._Directory.new(path);
      }
      return overrides.createDirectory(path);
    }
    static ['_#new#tearOff'](path) {
      if (path == null) dart.nullFailed(I[123], 112, 28, "path");
      return io.Directory.new(path);
    }
    static fromRawPath(path) {
      if (path == null) dart.nullFailed(I[123], 121, 43, "path");
      return new io._Directory.fromRawPath(path);
    }
    static ['_#fromRawPath#tearOff'](path) {
      if (path == null) dart.nullFailed(I[123], 121, 43, "path");
      return io.Directory.fromRawPath(path);
    }
    static fromUri(uri) {
      if (uri == null) dart.nullFailed(I[123], 129, 33, "uri");
      return io.Directory.new(uri.toFilePath());
    }
    static ['_#fromUri#tearOff'](uri) {
      if (uri == null) dart.nullFailed(I[123], 129, 33, "uri");
      return io.Directory.fromUri(uri);
    }
    static get current() {
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io._Directory.current;
      }
      return overrides.getCurrentDirectory();
    }
    static set current(path) {
      path;
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        io._Directory.current = path;
        return;
      }
      overrides.setCurrentDirectory((() => {
        let t$36162 = null;
        let t$36$350$350 = path;
        L2: {
          {
            let s = null;
            if (typeof t$36$350$350 == 'string') {
              s = t$36$350$350;
              t$36162 = s;
              break L2;
            }
          }
          {
            let d = null;
            if (T$2.Directory()[_is](t$36$350$350)) {
              d = t$36$350$350;
              t$36162 = d.path;
              break L2;
            }
          }
          {
            {
              t$36162 = dart.throw(new core.ArgumentError.new(dart.str(core.Error.safeToString(path)) + " is not a String or" + " Directory"));
              break L2;
            }
          }
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36162;
      })());
    }
    static get systemTemp() {
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io._Directory.systemTemp;
      }
      return overrides.getSystemTempDirectory();
    }
  };
  (io.Directory[dart.mixinNew] = function() {
  }).prototype = io.Directory.prototype;
  dart.addRtiResources(io.Directory, ["io|Directory", "io|FileSystemEntity"]);
  dart.setStaticMethodSignature(io.Directory, () => ['new', 'fromRawPath', 'fromUri']);
  dart.setStaticGetterSignature(io.Directory, () => ['current', 'systemTemp']);
  dart.setStaticSetterSignature(io.Directory, () => ['current']);
  dart.setLibraryUri(io.Directory, I[119]);
  var _path$ = dart.privateName(io, "_Directory._path");
  var _rawPath = dart.privateName(io, "_Directory._rawPath");
  var _path$0 = dart.privateName(io, "_path");
  var _rawPath$ = dart.privateName(io, "_rawPath");
  var _absolutePath = dart.privateName(io, "_absolutePath");
  var _delete = dart.privateName(io, "_delete");
  var _deleteSync = dart.privateName(io, "_deleteSync");
  io.FileSystemEntity = class FileSystemEntity extends core.Object {
    get uri() {
      return core._Uri.file(this.path);
    }
    resolveSymbolicLinks() {
      return io._File._dispatchWithNamespace(6, [null, this[_rawPath$]]).then(T$.String(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot resolve symbolic links", this.path);
        return T$.String()[_as](response);
      }, T$.ObjectNToString()));
    }
    resolveSymbolicLinksSync() {
      let result = io.FileSystemEntity._resolveSymbolicLinks(io._Namespace._namespace, this[_rawPath$]);
      io.FileSystemEntity._throwIfError(T$.Object()[_as](result), "Cannot resolve symbolic links", this.path);
      return T$.String()[_as](result);
    }
    stat() {
      return io.FileStat.stat(this.path);
    }
    statSync() {
      return io.FileStat.statSync(this.path);
    }
    delete(opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[125], 396, 41, "recursive");
      return this[_delete]({recursive: recursive});
    }
    deleteSync(opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[125], 406, 25, "recursive");
      return this[_deleteSync]({recursive: recursive});
    }
    watch(opts) {
      let events = opts && 'events' in opts ? opts.events : 15;
      if (events == null) dart.nullFailed(I[125], 451, 12, "events");
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[125], 451, 47, "recursive");
      let trimmedPath = io.FileSystemEntity._trimTrailingPathSeparators(this.path);
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io._FileSystemWatcher._watch(trimmedPath, events, recursive);
      }
      return overrides.fsWatch(trimmedPath, events, recursive);
    }
    static _identical(path1, path2) {
      if (path1 == null) dart.nullFailed(I[125], 464, 41, "path1");
      if (path2 == null) dart.nullFailed(I[125], 464, 55, "path2");
      return io._File._dispatchWithNamespace(28, [null, path1, path2]).then(T$.bool(), dart.fn(response => {
        io._checkForErrorResponse(response, "Error in FileSystemEntity.identical(" + dart.str(path1) + ", " + dart.str(path2) + ")", "");
        return T$.bool()[_as](response);
      }, T$.ObjectNTobool()));
    }
    static identical(path1, path2) {
      if (path1 == null) dart.nullFailed(I[125], 485, 40, "path1");
      if (path2 == null) dart.nullFailed(I[125], 485, 54, "path2");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io.FileSystemEntity._identical(path1, path2);
      }
      return overrides.fseIdentical(path1, path2);
    }
    get isAbsolute() {
      return io.FileSystemEntity._isAbsolute(this.path);
    }
    static _isAbsolute(path) {
      if (path == null) dart.nullFailed(I[125], 516, 34, "path");
      if (dart.test(io.Platform.isWindows)) {
        return path[$startsWith](io.FileSystemEntity._absoluteWindowsPathPattern);
      } else {
        return path[$startsWith]("/");
      }
    }
    get [_absolutePath]() {
      if (dart.test(this.isAbsolute)) return this.path;
      if (dart.test(io.Platform.isWindows)) return io.FileSystemEntity._absoluteWindowsPath(this.path);
      let current = io.Directory.current.path;
      if (current[$endsWith]("/")) {
        return dart.str(current) + dart.str(this.path);
      } else {
        return dart.str(current) + dart.str(io.Platform.pathSeparator) + dart.str(this.path);
      }
    }
    static _windowsDriveLetter(path) {
      if (path == null) dart.nullFailed(I[125], 551, 41, "path");
      if (path[$isEmpty] || !path[$startsWith](":", 1)) return -1;
      let first = (path[$codeUnitAt](0) & ~32 >>> 0) >>> 0;
      if (first >= 65 && first <= 91) return first;
      return -1;
    }
    static _absoluteWindowsPath(path) {
      if (path == null) dart.nullFailed(I[125], 559, 45, "path");
      if (!dart.test(io.Platform.isWindows)) dart.assertFailed(null, I[125], 560, 12, "Platform.isWindows");
      if (!!dart.test(io.FileSystemEntity._isAbsolute(path))) dart.assertFailed(null, I[125], 561, 12, "!_isAbsolute(path)");
      let current = io.Directory.current.path;
      if (path[$startsWith]("\\")) {
        if (!!path[$startsWith]("\\", 1)) dart.assertFailed(null, I[125], 566, 14, "!path.startsWith(r'\\', 1)");
        let currentDrive = io.FileSystemEntity._windowsDriveLetter(current);
        if (dart.notNull(currentDrive) >= 0) {
          return current[$_get](0) + ":" + dart.str(path);
        }
        if (current[$startsWith]("\\\\")) {
          let serverEnd = current[$indexOf]("\\", 2);
          if (serverEnd >= 0) {
            let shareEnd = current[$indexOf]("\\", serverEnd + 1);
            if (shareEnd < 0) shareEnd = current.length;
            return current[$substring](0, shareEnd) + dart.str(path);
          }
        }
        return path;
      }
      let entityDrive = io.FileSystemEntity._windowsDriveLetter(path);
      if (dart.notNull(entityDrive) >= 0) {
        if (entityDrive != io.FileSystemEntity._windowsDriveLetter(current)) {
          return path[$_get](0) + ":\\" + dart.str(path);
        }
        path = path[$substring](2);
        if (!!path[$startsWith]("\\\\")) dart.assertFailed(null, I[125], 603, 14, "!path.startsWith(r'\\\\')");
      }
      if (current[$endsWith]("\\") || current[$endsWith]("/")) {
        return dart.str(current) + dart.str(path);
      }
      return dart.str(current) + "\\" + dart.str(path);
    }
    static _identicalSync(path1, path2) {
      if (path1 == null) dart.nullFailed(I[125], 611, 37, "path1");
      if (path2 == null) dart.nullFailed(I[125], 611, 51, "path2");
      let result = io.FileSystemEntity._identicalNative(io._Namespace._namespace, path1, path2);
      io.FileSystemEntity._throwIfError(T$.Object()[_as](result), "Error in FileSystemEntity.identicalSync");
      return T$.bool()[_as](result);
    }
    static identicalSync(path1, path2) {
      if (path1 == null) dart.nullFailed(I[125], 627, 36, "path1");
      if (path2 == null) dart.nullFailed(I[125], 627, 50, "path2");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io.FileSystemEntity._identicalSync(path1, path2);
      }
      return overrides.fseIdenticalSync(path1, path2);
    }
    static get isWatchSupported() {
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io._FileSystemWatcher.isSupported;
      }
      return overrides.fsWatchIsSupported();
    }
    static _toUtf8Array(s) {
      if (s == null) dart.nullFailed(I[125], 648, 40, "s");
      return io.FileSystemEntity._toNullTerminatedUtf8Array(convert.utf8.encode(s));
    }
    static _toNullTerminatedUtf8Array(l) {
      if (l == null) dart.nullFailed(I[125], 651, 57, "l");
      if (dart.test(l[$isEmpty]) || dart.test(l[$isNotEmpty]) && l[$last] !== 0) {
        let tmp = _native_typed_data.NativeUint8List.new(dart.notNull(l[$length]) + 1);
        tmp[$setRange](0, l[$length], l);
        return tmp;
      } else {
        return l;
      }
    }
    static _toStringFromUtf8Array(l) {
      if (l == null) dart.nullFailed(I[125], 661, 50, "l");
      let nonNullTerminated = l;
      if (l[$last] === 0) {
        nonNullTerminated = typed_data.Uint8List.view(l[$buffer], l[$offsetInBytes], dart.notNull(l[$length]) - 1);
      }
      return convert.utf8.decode(nonNullTerminated, {allowMalformed: true});
    }
    static type(path, opts) {
      if (path == null) dart.nullFailed(I[125], 674, 51, "path");
      let followLinks = opts && 'followLinks' in opts ? opts.followLinks : true;
      if (followLinks == null) dart.nullFailed(I[125], 675, 13, "followLinks");
      return io.FileSystemEntity._getType(io.FileSystemEntity._toUtf8Array(path), followLinks);
    }
    static typeSync(path, opts) {
      if (path == null) dart.nullFailed(I[125], 690, 47, "path");
      let followLinks = opts && 'followLinks' in opts ? opts.followLinks : true;
      if (followLinks == null) dart.nullFailed(I[125], 690, 59, "followLinks");
      return io.FileSystemEntity._getTypeSync(io.FileSystemEntity._toUtf8Array(path), followLinks);
    }
    static isLink(path) {
      if (path == null) dart.nullFailed(I[125], 698, 37, "path");
      return io.FileSystemEntity._isLinkRaw(io.FileSystemEntity._toUtf8Array(path));
    }
    static _isLinkRaw(rawPath) {
      if (rawPath == null) dart.nullFailed(I[125], 700, 44, "rawPath");
      return io.FileSystemEntity._getType(rawPath, false).then(T$.bool(), dart.fn(type => {
        if (type == null) dart.nullFailed(I[125], 701, 14, "type");
        return dart.equals(type, io.FileSystemEntityType.link);
      }, T$2.FileSystemEntityTypeTobool()));
    }
    static isFile(path) {
      if (path == null) dart.nullFailed(I[125], 706, 37, "path");
      return io.FileSystemEntity._getType(io.FileSystemEntity._toUtf8Array(path), true).then(T$.bool(), dart.fn(type => {
        if (type == null) dart.nullFailed(I[125], 707, 14, "type");
        return dart.equals(type, io.FileSystemEntityType.file);
      }, T$2.FileSystemEntityTypeTobool()));
    }
    static isDirectory(path) {
      if (path == null) dart.nullFailed(I[125], 712, 42, "path");
      return io.FileSystemEntity._getType(io.FileSystemEntity._toUtf8Array(path), true).then(T$.bool(), dart.fn(type => {
        if (type == null) dart.nullFailed(I[125], 714, 18, "type");
        return dart.equals(type, io.FileSystemEntityType.directory);
      }, T$2.FileSystemEntityTypeTobool()));
    }
    static isLinkSync(path) {
      if (path == null) dart.nullFailed(I[125], 720, 33, "path");
      return io.FileSystemEntity._isLinkRawSync(io.FileSystemEntity._toUtf8Array(path));
    }
    static _isLinkRawSync(rawPath) {
      return dart.equals(io.FileSystemEntity._getTypeSync(T$.Uint8List()[_as](rawPath), false), io.FileSystemEntityType.link);
    }
    static isFileSync(path) {
      if (path == null) dart.nullFailed(I[125], 729, 33, "path");
      return dart.equals(io.FileSystemEntity._getTypeSync(io.FileSystemEntity._toUtf8Array(path), true), io.FileSystemEntityType.file);
    }
    static isDirectorySync(path) {
      if (path == null) dart.nullFailed(I[125], 736, 38, "path");
      return dart.equals(io.FileSystemEntity._getTypeSync(io.FileSystemEntity._toUtf8Array(path), true), io.FileSystemEntityType.directory);
    }
    static _getTypeNative(namespace, rawPath, followLinks) {
      if (namespace == null) dart.nullFailed(I[121], 93, 18, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 93, 39, "rawPath");
      if (followLinks == null) dart.nullFailed(I[121], 93, 53, "followLinks");
      dart.throw(new core.UnsupportedError.new("FileSystemEntity._getType"));
    }
    static _identicalNative(namespace, path1, path2) {
      if (namespace == null) dart.nullFailed(I[121], 98, 38, "namespace");
      if (path1 == null) dart.nullFailed(I[121], 98, 56, "path1");
      if (path2 == null) dart.nullFailed(I[121], 98, 70, "path2");
      dart.throw(new core.UnsupportedError.new("FileSystemEntity._identical"));
    }
    static _resolveSymbolicLinks(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 103, 43, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 103, 64, "rawPath");
      dart.throw(new core.UnsupportedError.new("FileSystemEntity._resolveSymbolicLinks"));
    }
    static parentOf(path) {
      if (path == null) dart.nullFailed(I[125], 760, 33, "path");
      let rootEnd = -1;
      if (dart.test(io.Platform.isWindows)) {
        if (path[$startsWith](io.FileSystemEntity._absoluteWindowsPathPattern)) {
          rootEnd = path[$indexOf](core.RegExp.new("[/\\\\]"), 2);
          if (rootEnd === -1) return path;
        } else if (path[$startsWith]("\\") || path[$startsWith]("/")) {
          rootEnd = 0;
        }
      } else if (path[$startsWith]("/")) {
        rootEnd = 0;
      }
      let pos = path[$lastIndexOf](io.FileSystemEntity._parentRegExp);
      if (pos > rootEnd) {
        return path[$substring](0, pos + 1);
      } else if (rootEnd > -1) {
        return path[$substring](0, rootEnd + 1);
      } else {
        return ".";
      }
    }
    get parent() {
      return io.Directory.new(io.FileSystemEntity.parentOf(this.path));
    }
    static _getTypeSyncHelper(rawPath, followLinks) {
      if (rawPath == null) dart.nullFailed(I[125], 789, 17, "rawPath");
      if (followLinks == null) dart.nullFailed(I[125], 789, 31, "followLinks");
      let result = io.FileSystemEntity._getTypeNative(io._Namespace._namespace, rawPath, followLinks);
      io.FileSystemEntity._throwIfError(T$.Object()[_as](result), "Error getting type of FileSystemEntity");
      return io.FileSystemEntityType._lookup(T$.int()[_as](result));
    }
    static _getTypeSync(rawPath, followLinks) {
      if (rawPath == null) dart.nullFailed(I[125], 796, 17, "rawPath");
      if (followLinks == null) dart.nullFailed(I[125], 796, 31, "followLinks");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io.FileSystemEntity._getTypeSyncHelper(rawPath, followLinks);
      }
      return overrides.fseGetTypeSync(io.FileSystemEntity._toStringFromUtf8Array(rawPath), followLinks);
    }
    static _getTypeRequest(rawPath, followLinks) {
      if (rawPath == null) dart.nullFailed(I[125], 806, 17, "rawPath");
      if (followLinks == null) dart.nullFailed(I[125], 806, 31, "followLinks");
      return io._File._dispatchWithNamespace(27, [null, rawPath, followLinks]).then(T$2.FileSystemEntityType(), dart.fn(response => {
        io._checkForErrorResponse(response, "Error getting type", convert.utf8.decode(rawPath, {allowMalformed: true}));
        return io.FileSystemEntityType._lookup(T$.int()[_as](response));
      }, T$2.ObjectNToFileSystemEntityType()));
    }
    static _getType(rawPath, followLinks) {
      if (rawPath == null) dart.nullFailed(I[125], 816, 17, "rawPath");
      if (followLinks == null) dart.nullFailed(I[125], 816, 31, "followLinks");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io.FileSystemEntity._getTypeRequest(rawPath, followLinks);
      }
      return overrides.fseGetType(io.FileSystemEntity._toStringFromUtf8Array(rawPath), followLinks);
    }
    static _throwIfError(result, msg, path = null) {
      if (result == null) dart.nullFailed(I[125], 824, 31, "result");
      if (msg == null) dart.nullFailed(I[125], 824, 46, "msg");
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new(msg, path, result));
      } else if (T$2.ArgumentError()[_is](result)) {
        dart.throw(result);
      }
    }
    static _trimTrailingPathSeparators(path) {
      if (path == null) dart.nullFailed(I[125], 833, 52, "path");
      core.ArgumentError.checkNotNull(T$.String(), path, "path");
      if (dart.test(io.Platform.isWindows)) {
        let minimumCharToNotTrim = dart.test(io.FileSystemEntity._isAbsolute(path)) ? 3 : 1;
        while (path.length > minimumCharToNotTrim && (path[$endsWith](io.Platform.pathSeparator) || path[$endsWith]("/"))) {
          path = path[$substring](0, path.length - 1);
        }
      } else {
        while (path.length > 1 && path[$endsWith](io.Platform.pathSeparator)) {
          path = path[$substring](0, path.length - 1);
        }
      }
      return path;
    }
    static _ensureTrailingPathSeparators(path) {
      if (path == null) dart.nullFailed(I[125], 854, 54, "path");
      if (path[$isEmpty]) path = ".";
      if (dart.test(io.Platform.isWindows)) {
        while (!path[$endsWith](io.Platform.pathSeparator) && !path[$endsWith]("/")) {
          path = dart.str(path) + dart.str(io.Platform.pathSeparator);
        }
      } else {
        while (!path[$endsWith](io.Platform.pathSeparator)) {
          path = dart.str(path) + dart.str(io.Platform.pathSeparator);
        }
      }
      return path;
    }
  };
  (io.FileSystemEntity.new = function() {
    ;
  }).prototype = io.FileSystemEntity.prototype;
  dart.addRtiResources(io.FileSystemEntity, ["io|FileSystemEntity"]);
  dart.setMethodSignature(io.FileSystemEntity, () => dart.global.Object.setPrototypeOf({
    resolveSymbolicLinks: T$2.VoidToFutureOfString(),
    resolveSymbolicLinksSync: T$.VoidToString(),
    stat: T$2.VoidToFutureOfFileStat(),
    statSync: T$2.VoidToFileStat(),
    delete: T$2.__ToFutureOfFileSystemEntity(),
    deleteSync: T$2.__Tovoid$1(),
    watch: T$2.__ToStreamOfFileSystemEvent()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io.FileSystemEntity))));
  dart.setStaticMethodSignature(io.FileSystemEntity, () => ['_identical', 'identical', '_isAbsolute', '_windowsDriveLetter', '_absoluteWindowsPath', '_identicalSync', 'identicalSync', '_toUtf8Array', '_toNullTerminatedUtf8Array', '_toStringFromUtf8Array', 'type', 'typeSync', 'isLink', '_isLinkRaw', 'isFile', 'isDirectory', 'isLinkSync', '_isLinkRawSync', 'isFileSync', 'isDirectorySync', '_getTypeNative', '_identicalNative', '_resolveSymbolicLinks', 'parentOf', '_getTypeSyncHelper', '_getTypeSync', '_getTypeRequest', '_getType', '_throwIfError', '_trimTrailingPathSeparators', '_ensureTrailingPathSeparators']);
  dart.setGetterSignature(io.FileSystemEntity, () => dart.global.Object.setPrototypeOf({
    uri: T$2.Uri(),
    isAbsolute: T$.bool(),
    [_absolutePath]: T$.String(),
    parent: T$2.Directory()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io.FileSystemEntity))));
  dart.setStaticGetterSignature(io.FileSystemEntity, () => ['isWatchSupported']);
  dart.setLibraryUri(io.FileSystemEntity, I[119]);
  dart.setStaticFieldSignature(io.FileSystemEntity, () => ['_backslashChar', '_slashChar', '_colonChar', '_absoluteWindowsPathPattern', '_parentRegExp']);
  dart.defineLazy(io.FileSystemEntity, {
    /*io.FileSystemEntity._backslashChar*/get _backslashChar() {
      return 92;
    },
    /*io.FileSystemEntity._slashChar*/get _slashChar() {
      return 47;
    },
    /*io.FileSystemEntity._colonChar*/get _colonChar() {
      return 58;
    },
    /*io.FileSystemEntity._absoluteWindowsPathPattern*/get _absoluteWindowsPathPattern() {
      return core.RegExp.new("^(?:\\\\\\\\|[a-zA-Z]:[/\\\\])");
    },
    /*io.FileSystemEntity._parentRegExp*/get _parentRegExp() {
      return dart.test(io.Platform.isWindows) ? core.RegExp.new("[^/\\\\][/\\\\]+[^/\\\\]") : core.RegExp.new("[^/]/+[^/]");
    }
  }, false);
  io._Directory = class _Directory extends io.FileSystemEntity {
    get [_path$0]() {
      return this[_path$];
    }
    set [_path$0](value) {
      super[_path$0] = value;
    }
    get [_rawPath$]() {
      return this[_rawPath];
    }
    set [_rawPath$](value) {
      super[_rawPath$] = value;
    }
    static ['_#new#tearOff'](path) {
      if (path == null) dart.nullFailed(I[124], 11, 21, "path");
      return new io._Directory.new(path);
    }
    static ['_#fromRawPath#tearOff'](rawPath) {
      if (rawPath == null) dart.nullFailed(I[124], 15, 36, "rawPath");
      return new io._Directory.fromRawPath(rawPath);
    }
    get path() {
      return this[_path$0];
    }
    static _current(namespace) {
      if (namespace == null) dart.nullFailed(I[121], 14, 30, "namespace");
      dart.throw(new core.UnsupportedError.new("Directory._current"));
    }
    static _setCurrent(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 19, 33, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 19, 54, "rawPath");
      dart.throw(new core.UnsupportedError.new("Directory_SetCurrent"));
    }
    static _createTemp(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 24, 33, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 24, 54, "rawPath");
      dart.throw(new core.UnsupportedError.new("Directory._createTemp"));
    }
    static _systemTemp(namespace) {
      if (namespace == null) dart.nullFailed(I[121], 29, 40, "namespace");
      dart.throw(new core.UnsupportedError.new("Directory._systemTemp"));
    }
    static _exists(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 34, 29, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 34, 50, "rawPath");
      dart.throw(new core.UnsupportedError.new("Directory._exists"));
    }
    static _create(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 39, 29, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 39, 50, "rawPath");
      dart.throw(new core.UnsupportedError.new("Directory._create"));
    }
    static _deleteNative(namespace, rawPath, recursive) {
      if (namespace == null) dart.nullFailed(I[121], 45, 18, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 45, 39, "rawPath");
      if (recursive == null) dart.nullFailed(I[121], 45, 53, "recursive");
      dart.throw(new core.UnsupportedError.new("Directory._deleteNative"));
    }
    static _rename(namespace, rawPath, newPath) {
      if (namespace == null) dart.nullFailed(I[121], 50, 29, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 50, 50, "rawPath");
      if (newPath == null) dart.nullFailed(I[121], 50, 66, "newPath");
      dart.throw(new core.UnsupportedError.new("Directory._rename"));
    }
    static _fillWithDirectoryListing(namespace, list, rawPath, recursive, followLinks) {
      if (namespace == null) dart.nullFailed(I[121], 56, 18, "namespace");
      if (list == null) dart.nullFailed(I[121], 57, 30, "list");
      if (rawPath == null) dart.nullFailed(I[121], 58, 17, "rawPath");
      if (recursive == null) dart.nullFailed(I[121], 59, 12, "recursive");
      if (followLinks == null) dart.nullFailed(I[121], 60, 12, "followLinks");
      dart.throw(new core.UnsupportedError.new("Directory._fillWithDirectoryListing"));
    }
    static get current() {
      let result = io._Directory._current(io._Namespace._namespace);
      if (T$2.OSError()[_is](result)) {
        dart.throw(io.FileSystemException._fromOSError(result, "Getting current working directory failed", ""));
      }
      return new io._Directory.new(T$.String()[_as](result));
    }
    static set current(path) {
      let _rawPath = (() => {
        let t$36164 = null;
        let t$36$350$350 = path;
        L3: {
          {
            let d = null;
            if (T$2._Directory()[_is](t$36$350$350)) {
              d = t$36$350$350;
              t$36164 = d[_rawPath$];
              break L3;
            }
          }
          {
            let d = null;
            if (T$2.Directory()[_is](t$36$350$350)) {
              d = t$36$350$350;
              t$36164 = io.FileSystemEntity._toUtf8Array(d.path);
              break L3;
            }
          }
          {
            let s = null;
            if (typeof t$36$350$350 == 'string') {
              s = t$36$350$350;
              t$36164 = io.FileSystemEntity._toUtf8Array(s);
              break L3;
            }
          }
          {
            {
              t$36164 = dart.throw(new core.ArgumentError.new(dart.str(core.Error.safeToString(path)) + " is not a String or" + " Directory"));
              break L3;
            }
          }
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36164;
      })();
      if (!dart.test(io._EmbedderConfig._mayChdir)) {
        dart.throw(new core.UnsupportedError.new("This embedder disallows setting Directory.current"));
      }
      let result = io._Directory._setCurrent(io._Namespace._namespace, _rawPath);
      if (T$2.ArgumentError()[_is](result)) dart.throw(result);
      if (T$2.OSError()[_is](result)) {
        dart.throw(io.FileSystemException._fromOSError(result, "Setting current working directory failed", dart.toString(path)));
      }
    }
    get uri() {
      return core._Uri.directory(this.path);
    }
    exists() {
      return io._File._dispatchWithNamespace(37, [null, this[_rawPath$]]).then(T$.bool(), dart.fn(response => {
        io._checkForErrorResponse(response, "Exists failed", this.path);
        return dart.equals(response, 1);
      }, T$.ObjectNTobool()));
    }
    existsSync() {
      let result = io._Directory._exists(io._Namespace._namespace, this[_rawPath$]);
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("Exists failed", this.path, result));
      }
      return dart.equals(result, 1);
    }
    get absolute() {
      return io.Directory.new(this[_absolutePath]);
    }
    create(opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[124], 94, 34, "recursive");
      if (dart.test(recursive)) {
        return this.exists().then(T$2.Directory(), dart.fn(exists => {
          if (exists == null) dart.nullFailed(I[124], 96, 29, "exists");
          if (dart.test(exists)) return this;
          if (this.path != this.parent.path) {
            return this.parent.create({recursive: true}).then(T$2.Directory(), dart.fn(_ => {
              if (_ == null) dart.nullFailed(I[124], 99, 55, "_");
              return this.create();
            }, T$2.DirectoryToFutureOfDirectory()));
          } else {
            return this.create();
          }
        }, T$2.boolToFutureOrOfDirectory()));
      } else {
        return io._File._dispatchWithNamespace(35, [null, this[_rawPath$]]).then(T$2.Directory(), dart.fn(response => {
          io._checkForErrorResponse(response, "Creation failed", this.path);
          return this;
        }, T$2.ObjectNTo_Directory()));
      }
    }
    createSync(opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[124], 115, 25, "recursive");
      if (dart.test(recursive)) {
        if (dart.test(this.existsSync())) return;
        if (this.path != this.parent.path) {
          this.parent.createSync({recursive: true});
        }
      }
      let result = io._Directory._create(io._Namespace._namespace, this[_rawPath$]);
      if (T$2.OSError()[_is](result)) {
        dart.throw(io.FileSystemException._fromOSError(result, "Creation failed", this.path));
      }
    }
    static get systemTemp() {
      return io.Directory.new(io._Directory._systemTemp(io._Namespace._namespace));
    }
    createTemp(prefix = null) {
      prefix == null ? prefix = "" : null;
      if (this.path === "") {
        dart.throw(new core.ArgumentError.new("Directory.createTemp called with an empty path. To use the system temp directory, use Directory.systemTemp"));
      }
      let fullPrefix = null;
      if (this.path[$endsWith]("/") || dart.test(io.Platform.isWindows) && this.path[$endsWith]("\\")) {
        fullPrefix = dart.str(this.path) + dart.str(prefix);
      } else {
        fullPrefix = dart.str(this.path) + dart.str(io.Platform.pathSeparator) + dart.str(prefix);
      }
      return io._File._dispatchWithNamespace(38, [null, io.FileSystemEntity._toUtf8Array(fullPrefix)]).then(T$2.Directory(), dart.fn(response => {
        io._checkForErrorResponse(response, "Creation of temporary directory failed", this.path);
        return io.Directory.new(T$.String()[_as](response));
      }, T$2.ObjectNToDirectory()));
    }
    createTempSync(prefix = null) {
      prefix == null ? prefix = "" : null;
      if (this.path === "") {
        dart.throw(new core.ArgumentError.new("Directory.createTemp called with an empty path. To use the system temp directory, use Directory.systemTemp"));
      }
      let fullPrefix = null;
      if (this.path[$endsWith]("/") || dart.test(io.Platform.isWindows) && this.path[$endsWith]("\\")) {
        fullPrefix = dart.str(this.path) + dart.str(prefix);
      } else {
        fullPrefix = dart.str(this.path) + dart.str(io.Platform.pathSeparator) + dart.str(prefix);
      }
      let result = io._Directory._createTemp(io._Namespace._namespace, io.FileSystemEntity._toUtf8Array(fullPrefix));
      if (T$2.OSError()[_is](result)) {
        dart.throw(io.FileSystemException._fromOSError(result, "Creation of temporary directory failed", fullPrefix));
      }
      return io.Directory.new(T$.String()[_as](result));
    }
    [_delete](opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[124], 176, 35, "recursive");
      return io._File._dispatchWithNamespace(36, [null, this[_rawPath$], recursive]).then(T$2.Directory(), dart.fn(response => {
        io._checkForErrorResponse(response, "Deletion failed", this.path);
        return this;
      }, T$2.ObjectNTo_Directory()));
    }
    [_deleteSync](opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[124], 185, 26, "recursive");
      let result = io._Directory._deleteNative(io._Namespace._namespace, this[_rawPath$], recursive);
      if (T$2.OSError()[_is](result)) {
        dart.throw(io.FileSystemException._fromOSError(result, "Deletion failed", this.path));
      }
    }
    rename(newPath) {
      if (newPath == null) dart.nullFailed(I[124], 192, 35, "newPath");
      return io._File._dispatchWithNamespace(42, [null, this[_rawPath$], newPath]).then(T$2.Directory(), dart.fn(response => {
        io._checkForErrorResponse(response, "Rename failed", this.path);
        return io.Directory.new(newPath);
      }, T$2.ObjectNToDirectory()));
    }
    renameSync(newPath) {
      if (newPath == null) dart.nullFailed(I[124], 200, 31, "newPath");
      core.ArgumentError.checkNotNull(T$.String(), newPath, "newPath");
      let result = io._Directory._rename(io._Namespace._namespace, this[_rawPath$], newPath);
      if (T$2.OSError()[_is](result)) {
        dart.throw(io.FileSystemException._fromOSError(result, "Rename failed", this.path));
      }
      return io.Directory.new(newPath);
    }
    list(opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[124], 211, 13, "recursive");
      let followLinks = opts && 'followLinks' in opts ? opts.followLinks : true;
      if (followLinks == null) dart.nullFailed(I[124], 211, 37, "followLinks");
      return new io._AsyncDirectoryLister.new(io.FileSystemEntity._toUtf8Array(io.FileSystemEntity._ensureTrailingPathSeparators(this.path)), recursive, followLinks).stream;
    }
    listSync(opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[124], 223, 13, "recursive");
      let followLinks = opts && 'followLinks' in opts ? opts.followLinks : true;
      if (followLinks == null) dart.nullFailed(I[124], 223, 37, "followLinks");
      core.ArgumentError.checkNotNull(T$.bool(), recursive, "recursive");
      core.ArgumentError.checkNotNull(T$.bool(), followLinks, "followLinks");
      let result = G.JSArrayOfFileSystemEntity().of([]);
      io._Directory._fillWithDirectoryListing(io._Namespace._namespace, result, io.FileSystemEntity._toUtf8Array(io.FileSystemEntity._ensureTrailingPathSeparators(this.path)), recursive, followLinks);
      return result;
    }
    toString() {
      return "Directory: '" + dart.str(this.path) + "'";
    }
    static _checkNotNull(T, t, name) {
      if (name == null) dart.nullFailed(I[124], 243, 41, "name");
      core.ArgumentError.checkNotNull(T, t, name);
      return t;
    }
  };
  (io._Directory.new = function(path) {
    if (path == null) dart.nullFailed(I[124], 11, 21, "path");
    this[_path$] = io._Directory._checkNotNull(T$.String(), path, "path");
    this[_rawPath] = io.FileSystemEntity._toUtf8Array(path);
    ;
  }).prototype = io._Directory.prototype;
  (io._Directory.fromRawPath = function(rawPath) {
    if (rawPath == null) dart.nullFailed(I[124], 15, 36, "rawPath");
    this[_rawPath] = io.FileSystemEntity._toNullTerminatedUtf8Array(io._Directory._checkNotNull(T$.Uint8List(), rawPath, "rawPath"));
    this[_path$] = io.FileSystemEntity._toStringFromUtf8Array(rawPath);
    ;
  }).prototype = io._Directory.prototype;
  dart.addRtiResources(io._Directory, ["io|_Directory", "io|Directory", "io|FileSystemEntity"]);
  dart.setMethodSignature(io._Directory, () => dart.global.Object.setPrototypeOf({
    exists: T$1.VoidToFutureOfbool(),
    existsSync: T$.VoidTobool(),
    create: T$2.__ToFutureOfDirectory(),
    createSync: T$2.__Tovoid$1(),
    createTemp: T$2.StringNToFutureOfDirectory(),
    createTempSync: T$2.StringNToDirectory(),
    [_delete]: T$2.__ToFutureOfDirectory(),
    [_deleteSync]: T$2.__Tovoid$1(),
    rename: T$2.StringToFutureOfDirectory(),
    renameSync: T$2.StringToDirectory(),
    list: T$2.__ToStreamOfFileSystemEntity(),
    listSync: T$2.__ToListOfFileSystemEntity()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._Directory))));
  dart.setStaticMethodSignature(io._Directory, () => ['_current', '_setCurrent', '_createTemp', '_systemTemp', '_exists', '_create', '_deleteNative', '_rename', '_fillWithDirectoryListing', '_checkNotNull']);
  dart.setGetterSignature(io._Directory, () => dart.global.Object.setPrototypeOf({
    path: T$.String(),
    absolute: T$2.Directory()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._Directory))));
  dart.setStaticGetterSignature(io._Directory, () => ['current', 'systemTemp']);
  dart.setStaticSetterSignature(io._Directory, () => ['current']);
  dart.setLibraryUri(io._Directory, I[119]);
  dart.setFieldSignature(io._Directory, () => dart.global.Object.setPrototypeOf({
    [_path$0]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_rawPath$]: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._Directory))));
  dart.defineExtensionMethods(io._Directory, ['toString']);
  io._AsyncDirectoryListerOps = class _AsyncDirectoryListerOps extends core.Object {
    static new(pointer) {
      if (pointer == null) dart.nullFailed(I[121], 68, 40, "pointer");
      dart.throw(new core.UnsupportedError.new("Directory._list"));
    }
    static ['_#new#tearOff'](pointer) {
      if (pointer == null) dart.nullFailed(I[121], 68, 40, "pointer");
      return io._AsyncDirectoryListerOps.new(pointer);
    }
  };
  (io._AsyncDirectoryListerOps[dart.mixinNew] = function() {
  }).prototype = io._AsyncDirectoryListerOps.prototype;
  dart.addRtiResources(io._AsyncDirectoryListerOps, ["io|_AsyncDirectoryListerOps"]);
  dart.setStaticMethodSignature(io._AsyncDirectoryListerOps, () => ['new']);
  dart.setLibraryUri(io._AsyncDirectoryListerOps, I[119]);
  var _ops = dart.privateName(io, "_ops");
  var _pointer = dart.privateName(io, "_pointer");
  var _cleanup = dart.privateName(io, "_cleanup");
  io._AsyncDirectoryLister = class _AsyncDirectoryLister extends core.Object {
    static ['_#new#tearOff'](rawPath, recursive, followLinks) {
      if (rawPath == null) dart.nullFailed(I[124], 278, 30, "rawPath");
      if (recursive == null) dart.nullFailed(I[124], 278, 44, "recursive");
      if (followLinks == null) dart.nullFailed(I[124], 278, 60, "followLinks");
      return new io._AsyncDirectoryLister.new(rawPath, recursive, followLinks);
    }
    [_pointer]() {
      let t$36166;
      t$36166 = this[_ops];
      return t$36166 == null ? null : t$36166.getPointer();
    }
    get stream() {
      return this.controller.stream;
    }
    onListen() {
      io._File._dispatchWithNamespace(39, [null, this.rawPath, this.recursive, this.followLinks]).then(T$.Null(), dart.fn(response => {
        if (T$.int()[_is](response)) {
          this[_ops] = io._AsyncDirectoryListerOps.new(response);
          this.next();
        } else if (T$.Error()[_is](response)) {
          this.controller.addError(response, response[$stackTrace]);
          this.close();
        } else {
          this.error(T$.ListOfObjectN()[_as](response));
          this.close();
        }
      }, T$.ObjectNToNull()));
    }
    onResume() {
      if (!dart.test(this.nextRunning)) {
        this.next();
      }
    }
    onCancel() {
      this.canceled = true;
      if (!dart.test(this.nextRunning)) {
        this.close();
      }
      return this.closeCompleter.future;
    }
    next() {
      if (dart.test(this.canceled)) {
        this.close();
        return;
      }
      if (dart.test(this.controller.isPaused) || dart.test(this.nextRunning)) {
        return;
      }
      let pointer = this[_pointer]();
      if (pointer == null) {
        return;
      }
      this.nextRunning = true;
      io._IOService._dispatch(40, [pointer]).then(T$.Null(), dart.fn(result => {
        let t$36166;
        this.nextRunning = false;
        if (T$.List()[_is](result)) {
          this.next();
          if (!(result[$length][$modulo](2) === 0)) dart.assertFailed(null, I[124], 346, 16, "result.length % 2 == 0");
          for (let i = 0; i < dart.notNull(result[$length]); i = i + 1) {
            if (!(i[$modulo](2) === 0)) dart.assertFailed(null, I[124], 348, 18, "i % 2 == 0");
            switch (result[$_get]((t$36166 = i, i = t$36166 + 1, t$36166))) {
              case 0:
                {
                  this.controller.add(io.File.fromRawPath(T$.Uint8List()[_as](result[$_get](i))));
                  break;
                }
              case 1:
                {
                  this.controller.add(io.Directory.fromRawPath(T$.Uint8List()[_as](result[$_get](i))));
                  break;
                }
              case 2:
                {
                  this.controller.add(io.Link.fromRawPath(T$.Uint8List()[_as](result[$_get](i))));
                  break;
                }
              case 3:
                {
                  this.error(T$.ListOfObjectN()[_as](result[$_get](i)));
                  break;
                }
              case 4:
                {
                  this.canceled = true;
                  return;
                }
            }
          }
        } else {
          this.controller.addError(new io.FileSystemException.new("Internal error"));
        }
      }, T$.ObjectNToNull()));
    }
    [_cleanup]() {
      this.controller.close();
      this.closeCompleter.complete();
      this[_ops] = null;
    }
    close() {
      if (dart.test(this.closed)) {
        return;
      }
      if (dart.test(this.nextRunning)) {
        return;
      }
      this.closed = true;
      let pointer = this[_pointer]();
      if (pointer == null) {
        this[_cleanup]();
      } else {
        io._IOService._dispatch(41, [pointer]).whenComplete(dart.bind(this, _cleanup));
      }
    }
    error(message) {
      if (message == null) dart.nullFailed(I[124], 397, 28, "message");
      let errorResponseInfo = T$.ListOfObjectN()[_as](dart.nullCheck(message[$_get](2)));
      let errorType = errorResponseInfo[$_get](0);
      if (dart.equals(errorType, 1)) {
        this.controller.addError(new core.ArgumentError.new());
      } else if (dart.equals(errorType, 2)) {
        let err = new io.OSError.new(T$.String()[_as](errorResponseInfo[$_get](2)), T$.int()[_as](errorResponseInfo[$_get](1)));
        let errorPath = message[$_get](1);
        if (errorPath == null) {
          errorPath = convert.utf8.decode(this.rawPath, {allowMalformed: true});
        } else if (T$.Uint8List()[_is](errorPath)) {
          errorPath = convert.utf8.decode(errorPath, {allowMalformed: true});
        }
        this.controller.addError(io.FileSystemException._fromOSError(err, "Directory listing failed", T$.String()[_as](errorPath)));
      } else {
        this.controller.addError(new io.FileSystemException.new("Internal error"));
      }
    }
  };
  (io._AsyncDirectoryLister.new = function(rawPath, recursive, followLinks) {
    let t$36166;
    if (rawPath == null) dart.nullFailed(I[124], 278, 30, "rawPath");
    if (recursive == null) dart.nullFailed(I[124], 278, 44, "recursive");
    if (followLinks == null) dart.nullFailed(I[124], 278, 60, "followLinks");
    this.controller = G.StreamControllerOfFileSystemEntity().new({sync: true});
    this.canceled = false;
    this.nextRunning = false;
    this.closed = false;
    this[_ops] = null;
    this.closeCompleter = async.Completer.new();
    this.rawPath = rawPath;
    this.recursive = recursive;
    this.followLinks = followLinks;
    t$36166 = this.controller;
    (() => {
      t$36166.onListen = dart.bind(this, 'onListen');
      t$36166.onResume = dart.bind(this, 'onResume');
      t$36166.onCancel = dart.bind(this, 'onCancel');
      return t$36166;
    })();
  }).prototype = io._AsyncDirectoryLister.prototype;
  dart.addRtiResources(io._AsyncDirectoryLister, ["io|_AsyncDirectoryLister"]);
  dart.setMethodSignature(io._AsyncDirectoryLister, () => dart.global.Object.setPrototypeOf({
    [_pointer]: T$2.VoidTointN(),
    onListen: T$.VoidTovoid(),
    onResume: T$.VoidTovoid(),
    onCancel: T$.VoidToFuture(),
    next: T$.VoidTovoid(),
    [_cleanup]: T$.VoidTovoid(),
    close: T$.VoidTovoid(),
    error: T$2.ListOfObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._AsyncDirectoryLister))));
  dart.setGetterSignature(io._AsyncDirectoryLister, () => dart.global.Object.setPrototypeOf({stream: T$2.StreamOfFileSystemEntity()}, dart.getGetters(dart.global.Object.getPrototypeOf(io._AsyncDirectoryLister))));
  dart.setLibraryUri(io._AsyncDirectoryLister, I[119]);
  dart.setFieldSignature(io._AsyncDirectoryLister, () => dart.global.Object.setPrototypeOf({
    rawPath: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]},
    recursive: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    followLinks: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    controller: {type: T$2.StreamControllerOfFileSystemEntity(), isConst: false, isFinal: true, libraryUri: I[39]},
    canceled: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    nextRunning: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    closed: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_ops]: {type: T$2._AsyncDirectoryListerOpsN(), isConst: false, isFinal: false, libraryUri: I[119]},
    closeCompleter: {type: T$2.Completer(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._AsyncDirectoryLister))));
  dart.setStaticFieldSignature(io._AsyncDirectoryLister, () => ['listFile', 'listDirectory', 'listLink', 'listError', 'listDone', 'responseType', 'responsePath', 'responseComplete', 'responseError']);
  dart.defineLazy(io._AsyncDirectoryLister, {
    /*io._AsyncDirectoryLister.listFile*/get listFile() {
      return 0;
    },
    /*io._AsyncDirectoryLister.listDirectory*/get listDirectory() {
      return 1;
    },
    /*io._AsyncDirectoryLister.listLink*/get listLink() {
      return 2;
    },
    /*io._AsyncDirectoryLister.listError*/get listError() {
      return 3;
    },
    /*io._AsyncDirectoryLister.listDone*/get listDone() {
      return 4;
    },
    /*io._AsyncDirectoryLister.responseType*/get responseType() {
      return 0;
    },
    /*io._AsyncDirectoryLister.responsePath*/get responsePath() {
      return 1;
    },
    /*io._AsyncDirectoryLister.responseComplete*/get responseComplete() {
      return 1;
    },
    /*io._AsyncDirectoryLister.responseError*/get responseError() {
      return 2;
    }
  }, false);
  io._EmbedderConfig = class _EmbedderConfig extends core.Object {};
  (io._EmbedderConfig.new = function() {
    ;
  }).prototype = io._EmbedderConfig.prototype;
  dart.addRtiResources(io._EmbedderConfig, ["io|_EmbedderConfig"]);
  dart.setLibraryUri(io._EmbedderConfig, I[119]);
  dart.setStaticFieldSignature(io._EmbedderConfig, () => ['_mayChdir', '_mayExit', '_maySetEchoMode', '_maySetEchoNewlineMode', '_maySetLineMode', '_maySleep']);
  dart.defineLazy(io._EmbedderConfig, {
    /*io._EmbedderConfig._mayChdir*/get _mayChdir() {
      return true;
    },
    set _mayChdir(value) {
      if (value == null) dart.nullFailed(I[126], 17, 15, "_mayChdir");
    },
    /*io._EmbedderConfig._mayExit*/get _mayExit() {
      return true;
    },
    set _mayExit(value) {
      if (value == null) dart.nullFailed(I[126], 21, 15, "_mayExit");
    },
    /*io._EmbedderConfig._maySetEchoMode*/get _maySetEchoMode() {
      return true;
    },
    set _maySetEchoMode(value) {
      if (value == null) dart.nullFailed(I[126], 25, 15, "_maySetEchoMode");
    },
    /*io._EmbedderConfig._maySetEchoNewlineMode*/get _maySetEchoNewlineMode() {
      return true;
    },
    set _maySetEchoNewlineMode(value) {
      if (value == null) dart.nullFailed(I[126], 29, 15, "_maySetEchoNewlineMode");
    },
    /*io._EmbedderConfig._maySetLineMode*/get _maySetLineMode() {
      return true;
    },
    set _maySetLineMode(value) {
      if (value == null) dart.nullFailed(I[126], 33, 15, "_maySetLineMode");
    },
    /*io._EmbedderConfig._maySleep*/get _maySleep() {
      return true;
    },
    set _maySleep(value) {
      if (value == null) dart.nullFailed(I[126], 37, 15, "_maySleep");
    }
  }, false);
  io._EventHandler = class _EventHandler extends core.Object {
    static _sendData(sender, sendPort, data) {
      if (sendPort == null) dart.nullFailed(I[121], 76, 50, "sendPort");
      if (data == null) dart.nullFailed(I[121], 76, 64, "data");
      dart.throw(new core.UnsupportedError.new("EventHandler._sendData"));
    }
    static ['_#new#tearOff']() {
      return new io._EventHandler.new();
    }
  };
  (io._EventHandler.new = function() {
    ;
  }).prototype = io._EventHandler.prototype;
  dart.addRtiResources(io._EventHandler, ["io|_EventHandler"]);
  dart.setStaticMethodSignature(io._EventHandler, () => ['_sendData']);
  dart.setLibraryUri(io._EventHandler, I[119]);
  var _mode$ = dart.privateName(io, "FileMode._mode");
  var _mode = dart.privateName(io, "_mode");
  io.FileMode = class FileMode extends core.Object {
    get [_mode]() {
      return this[_mode$];
    }
    set [_mode](value) {
      super[_mode] = value;
    }
    static ['_#_internal#tearOff'](_mode) {
      if (_mode == null) dart.nullFailed(I[127], 32, 33, "_mode");
      return new io.FileMode._internal(_mode);
    }
  };
  (io.FileMode._internal = function(_mode) {
    if (_mode == null) dart.nullFailed(I[127], 32, 33, "_mode");
    this[_mode$] = _mode;
    ;
  }).prototype = io.FileMode.prototype;
  dart.addRtiResources(io.FileMode, ["io|FileMode"]);
  dart.setLibraryUri(io.FileMode, I[119]);
  dart.setFieldSignature(io.FileMode, () => dart.global.Object.setPrototypeOf({[_mode]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.FileMode))));
  dart.setStaticFieldSignature(io.FileMode, () => ['read', 'write', 'append', 'writeOnly', 'writeOnlyAppend']);
  dart.defineLazy(io.FileMode, {
    /*io.FileMode.read*/get read() {
      return C[156] || CT.C156;
    },
    /*io.FileMode.write*/get write() {
      return C[157] || CT.C157;
    },
    /*io.FileMode.append*/get append() {
      return C[158] || CT.C158;
    },
    /*io.FileMode.writeOnly*/get writeOnly() {
      return C[159] || CT.C159;
    },
    /*io.FileMode.writeOnlyAppend*/get writeOnlyAppend() {
      return C[160] || CT.C160;
    }
  }, false);
  var _type$0 = dart.privateName(io, "FileLock._type");
  var _type = dart.privateName(io, "_type");
  io.FileLock = class FileLock extends core.Object {
    get [_type]() {
      return this[_type$0];
    }
    set [_type](value) {
      super[_type] = value;
    }
    static ['_#_internal#tearOff'](_type) {
      if (_type == null) dart.nullFailed(I[127], 51, 33, "_type");
      return new io.FileLock._internal(_type);
    }
  };
  (io.FileLock._internal = function(_type) {
    if (_type == null) dart.nullFailed(I[127], 51, 33, "_type");
    this[_type$0] = _type;
    ;
  }).prototype = io.FileLock.prototype;
  dart.addRtiResources(io.FileLock, ["io|FileLock"]);
  dart.setLibraryUri(io.FileLock, I[119]);
  dart.setFieldSignature(io.FileLock, () => dart.global.Object.setPrototypeOf({[_type]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.FileLock))));
  dart.setStaticFieldSignature(io.FileLock, () => ['shared', 'exclusive', 'blockingShared', 'blockingExclusive']);
  dart.defineLazy(io.FileLock, {
    /*io.FileLock.shared*/get shared() {
      return C[161] || CT.C161;
    },
    /*io.FileLock.exclusive*/get exclusive() {
      return C[162] || CT.C162;
    },
    /*io.FileLock.blockingShared*/get blockingShared() {
      return C[163] || CT.C163;
    },
    /*io.FileLock.blockingExclusive*/get blockingExclusive() {
      return C[164] || CT.C164;
    }
  }, false);
  io.File = class File extends core.Object {
    static new(path) {
      if (path == null) dart.nullFailed(I[127], 194, 23, "path");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return new io._File.new(path);
      }
      return overrides.createFile(path);
    }
    static ['_#new#tearOff'](path) {
      if (path == null) dart.nullFailed(I[127], 194, 23, "path");
      return io.File.new(path);
    }
    static ['_#fromUri#tearOff'](uri) {
      if (uri == null) dart.nullFailed(I[127], 205, 28, "uri");
      return io.File.fromUri(uri);
    }
    static fromUri(uri) {
      if (uri == null) dart.nullFailed(I[127], 205, 28, "uri");
      return io.File.new(uri.toFilePath());
    }
    static ['_#fromRawPath#tearOff'](rawPath) {
      if (rawPath == null) dart.nullFailed(I[127], 211, 38, "rawPath");
      return io.File.fromRawPath(rawPath);
    }
    static fromRawPath(rawPath) {
      if (rawPath == null) dart.nullFailed(I[127], 211, 38, "rawPath");
      return new io._File.fromRawPath(rawPath);
    }
  };
  (io.File[dart.mixinNew] = function() {
  }).prototype = io.File.prototype;
  dart.addRtiResources(io.File, ["io|File", "io|FileSystemEntity"]);
  dart.setStaticMethodSignature(io.File, () => ['new', 'fromUri', 'fromRawPath']);
  dart.setLibraryUri(io.File, I[119]);
  io.RandomAccessFile = class RandomAccessFile extends core.Object {};
  (io.RandomAccessFile.new = function() {
    ;
  }).prototype = io.RandomAccessFile.prototype;
  dart.addRtiResources(io.RandomAccessFile, ["io|RandomAccessFile"]);
  dart.setLibraryUri(io.RandomAccessFile, I[119]);
  var message$3 = dart.privateName(io, "FileSystemException.message");
  var path$ = dart.privateName(io, "FileSystemException.path");
  var osError$ = dart.privateName(io, "FileSystemException.osError");
  var _toStringHelper = dart.privateName(io, "_toStringHelper");
  io.FileSystemException = class FileSystemException extends core.Object {
    get message() {
      return this[message$3];
    }
    set message(value) {
      super.message = value;
    }
    get path() {
      return this[path$];
    }
    set path(value) {
      super.path = value;
    }
    get osError() {
      return this[osError$];
    }
    set osError(value) {
      super.osError = value;
    }
    static ['_#new#tearOff'](message = "", path = "", osError = null) {
      if (message == null) dart.nullFailed(I[127], 1027, 35, "message");
      return new io.FileSystemException.new(message, path, osError);
    }
    static _fromOSError(err, message, path) {
      if (err == null) dart.nullFailed(I[127], 1035, 15, "err");
      if (message == null) dart.nullFailed(I[127], 1035, 27, "message");
      if (path == null) dart.nullFailed(I[127], 1035, 43, "path");
      if (dart.test(io.Platform.isWindows)) {
        switch (err.errorCode) {
          case 5:
          case 16:
          case 19:
          case 24:
          case 32:
          case 33:
          case 65:
          case 108:
            {
              return new io.PathAccessException.new(path, err, message);
            }
          case 80:
          case 183:
            {
              return new io.PathExistsException.new(path, err, message);
            }
          case 2:
          case 3:
          case 15:
          case 18:
          case 53:
          case 67:
          case 161:
          case 206:
            {
              return new io.PathNotFoundException.new(path, err, message);
            }
          default:
            {
              return new io.FileSystemException.new(message, path, err);
            }
        }
      } else {
        switch (err.errorCode) {
          case 1:
          case 13:
            {
              return new io.PathAccessException.new(path, err, message);
            }
          case 17:
            {
              return new io.PathExistsException.new(path, err, message);
            }
          case 2:
            {
              return new io.PathNotFoundException.new(path, err, message);
            }
          default:
            {
              return new io.FileSystemException.new(message, path, err);
            }
        }
      }
    }
    static ['_#_fromOSError#tearOff'](err, message, path) {
      if (err == null) dart.nullFailed(I[127], 1035, 15, "err");
      if (message == null) dart.nullFailed(I[127], 1035, 27, "message");
      if (path == null) dart.nullFailed(I[127], 1035, 43, "path");
      return io.FileSystemException._fromOSError(err, message, path);
    }
    [_toStringHelper](className) {
      if (className == null) dart.nullFailed(I[127], 1077, 33, "className");
      let sb = new core.StringBuffer.new();
      sb.write(className);
      if (this.message[$isNotEmpty]) {
        sb.write(": " + dart.str(this.message));
        if (this.path != null) {
          sb.write(", path = '" + dart.str(this.path) + "'");
        }
        if (this.osError != null) {
          sb.write(" (" + dart.str(this.osError) + ")");
        }
      } else if (this.osError != null) {
        sb.write(": " + dart.str(this.osError));
        if (this.path != null) {
          sb.write(", path = '" + dart.str(this.path) + "'");
        }
      } else if (this.path != null) {
        sb.write(": " + dart.str(this.path));
      }
      return dart.toString(sb);
    }
    toString() {
      return this[_toStringHelper]("FileSystemException");
    }
  };
  (io.FileSystemException.new = function(message = "", path = "", osError = null) {
    if (message == null) dart.nullFailed(I[127], 1027, 35, "message");
    this[message$3] = message;
    this[path$] = path;
    this[osError$] = osError;
    ;
  }).prototype = io.FileSystemException.prototype;
  dart.addRtiResources(io.FileSystemException, ["io|FileSystemException", "io|IOException", "core|Exception"]);
  dart.setMethodSignature(io.FileSystemException, () => dart.global.Object.setPrototypeOf({[_toStringHelper]: T$.StringToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(io.FileSystemException))));
  dart.setStaticMethodSignature(io.FileSystemException, () => ['_fromOSError']);
  dart.setLibraryUri(io.FileSystemException, I[119]);
  dart.setFieldSignature(io.FileSystemException, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    path: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    osError: {type: T$2.OSErrorN(), isConst: false, isFinal: true, libraryUri: I[119]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.FileSystemException))));
  dart.defineExtensionMethods(io.FileSystemException, ['toString']);
  io.PathAccessException = class PathAccessException extends io.FileSystemException {
    static ['_#new#tearOff'](path, osError, message = "") {
      if (path == null) dart.nullFailed(I[127], 1108, 36, "path");
      if (osError == null) dart.nullFailed(I[127], 1108, 50, "osError");
      if (message == null) dart.nullFailed(I[127], 1108, 67, "message");
      return new io.PathAccessException.new(path, osError, message);
    }
    toString() {
      return this[_toStringHelper]("PathAccessException");
    }
  };
  (io.PathAccessException.new = function(path, osError, message = "") {
    if (path == null) dart.nullFailed(I[127], 1108, 36, "path");
    if (osError == null) dart.nullFailed(I[127], 1108, 50, "osError");
    if (message == null) dart.nullFailed(I[127], 1108, 67, "message");
    dart.global.Object.getPrototypeOf(io.PathAccessException).new.call(this, message, path, osError);
    ;
  }).prototype = io.PathAccessException.prototype;
  dart.addRtiResources(io.PathAccessException, ["io|PathAccessException"]);
  dart.setLibraryUri(io.PathAccessException, I[119]);
  dart.defineExtensionMethods(io.PathAccessException, ['toString']);
  io.PathExistsException = class PathExistsException extends io.FileSystemException {
    static ['_#new#tearOff'](path, osError, message = "") {
      if (path == null) dart.nullFailed(I[127], 1118, 36, "path");
      if (osError == null) dart.nullFailed(I[127], 1118, 50, "osError");
      if (message == null) dart.nullFailed(I[127], 1118, 67, "message");
      return new io.PathExistsException.new(path, osError, message);
    }
    toString() {
      return this[_toStringHelper]("PathExistsException");
    }
  };
  (io.PathExistsException.new = function(path, osError, message = "") {
    if (path == null) dart.nullFailed(I[127], 1118, 36, "path");
    if (osError == null) dart.nullFailed(I[127], 1118, 50, "osError");
    if (message == null) dart.nullFailed(I[127], 1118, 67, "message");
    dart.global.Object.getPrototypeOf(io.PathExistsException).new.call(this, message, path, osError);
    ;
  }).prototype = io.PathExistsException.prototype;
  dart.addRtiResources(io.PathExistsException, ["io|PathExistsException"]);
  dart.setLibraryUri(io.PathExistsException, I[119]);
  dart.defineExtensionMethods(io.PathExistsException, ['toString']);
  io.PathNotFoundException = class PathNotFoundException extends io.FileSystemException {
    static ['_#new#tearOff'](path, osError, message = "") {
      if (path == null) dart.nullFailed(I[127], 1128, 38, "path");
      if (osError == null) dart.nullFailed(I[127], 1128, 52, "osError");
      if (message == null) dart.nullFailed(I[127], 1129, 15, "message");
      return new io.PathNotFoundException.new(path, osError, message);
    }
    toString() {
      return this[_toStringHelper]("PathNotFoundException");
    }
  };
  (io.PathNotFoundException.new = function(path, osError, message = "") {
    if (path == null) dart.nullFailed(I[127], 1128, 38, "path");
    if (osError == null) dart.nullFailed(I[127], 1128, 52, "osError");
    if (message == null) dart.nullFailed(I[127], 1129, 15, "message");
    dart.global.Object.getPrototypeOf(io.PathNotFoundException).new.call(this, message, path, osError);
    ;
  }).prototype = io.PathNotFoundException.prototype;
  dart.addRtiResources(io.PathNotFoundException, ["io|PathNotFoundException"]);
  dart.setLibraryUri(io.PathNotFoundException, I[119]);
  dart.defineExtensionMethods(io.PathNotFoundException, ['toString']);
  io.ReadPipe = class ReadPipe extends core.Object {};
  (io.ReadPipe.new = function() {
    ;
  }).prototype = io.ReadPipe.prototype;
  dart.addRtiResources(io.ReadPipe, ["io|ReadPipe", "async|Stream"]);
  dart.setLibraryUri(io.ReadPipe, I[119]);
  io.WritePipe = class WritePipe extends core.Object {};
  (io.WritePipe.new = function() {
    ;
  }).prototype = io.WritePipe.prototype;
  dart.addRtiResources(io.WritePipe, ["io|WritePipe", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setLibraryUri(io.WritePipe, I[119]);
  io.Pipe = class Pipe extends core.Object {
    static create() {
      return io._Pipe.create();
    }
    static createSync() {
      return io._Pipe.createSync();
    }
    static ['_#createSync#tearOff']() {
      return io.Pipe.createSync();
    }
  };
  (io.Pipe[dart.mixinNew] = function() {
  }).prototype = io.Pipe.prototype;
  dart.addRtiResources(io.Pipe, ["io|Pipe"]);
  dart.setStaticMethodSignature(io.Pipe, () => ['create', 'createSync']);
  dart.setLibraryUri(io.Pipe, I[119]);
  var ___FileStream__controller = dart.privateName(io, "_#_FileStream#_controller");
  var ___FileStream__controller_isSet = dart.privateName(io, "_#_FileStream#_controller#isSet");
  var _closeCompleter = dart.privateName(io, "_closeCompleter");
  var _unsubscribed = dart.privateName(io, "_unsubscribed");
  var _readInProgress = dart.privateName(io, "_readInProgress");
  var _atEnd = dart.privateName(io, "_atEnd");
  var _openedFile = dart.privateName(io, "_openedFile");
  var _end$0 = dart.privateName(io, "_end");
  var _position$ = dart.privateName(io, "_position");
  var _controller = dart.privateName(io, "_controller");
  var _start$2 = dart.privateName(io, "_start");
  var _readBlock = dart.privateName(io, "_readBlock");
  var _closeFile = dart.privateName(io, "_closeFile");
  io._FileStream = class _FileStream extends G.StreamOfListOfint() {
    get [_controller]() {
      let t$36166;
      return dart.test(this[___FileStream__controller_isSet]) ? (t$36166 = this[___FileStream__controller], t$36166) : dart.throw(new _internal.LateError.fieldNI("_controller"));
    }
    set [_controller](_controller$35param) {
      if (_controller$35param == null) dart.nullFailed(I[128], 29, 36, "_controller#param");
      this[___FileStream__controller_isSet] = true;
      this[___FileStream__controller] = _controller$35param;
    }
    static ['_#new#tearOff'](_path, position, _end) {
      return new io._FileStream.new(_path, position, _end);
    }
    static ['_#forStdin#tearOff']() {
      return new io._FileStream.forStdin();
    }
    static ['_#forRandomAccessFile#tearOff'](f) {
      if (f == null) dart.nullFailed(I[128], 51, 52, "f");
      return new io._FileStream.forRandomAccessFile(f);
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      this[_controller] = G.StreamControllerOfUint8List().new({sync: true, onListen: dart.bind(this, _start$2), onResume: dart.bind(this, _readBlock), onCancel: dart.fn(() => {
          this[_unsubscribed] = true;
          return this[_closeFile]();
        }, T$.VoidToFuture())});
      return this[_controller].stream.listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    [_closeFile]() {
      if (dart.test(this[_readInProgress]) || dart.test(this[_closed])) {
        return this[_closeCompleter].future;
      }
      this[_closed] = true;
      const done = () => {
        this[_closeCompleter].complete();
        this[_controller].close();
      };
      dart.fn(done, T$.VoidTovoid());
      dart.nullCheck(this[_openedFile]).close().catchError(dart.bind(this[_controller], 'addError')).whenComplete(done);
      return this[_closeCompleter].future;
    }
    [_readBlock]() {
      if (dart.test(this[_readInProgress])) return;
      if (dart.test(this[_atEnd])) {
        this[_closeFile]();
        return;
      }
      this[_readInProgress] = true;
      let readBytes = 65536;
      let end = this[_end$0];
      if (end != null) {
        readBytes = math.min(T$.int(), readBytes, dart.notNull(end) - dart.notNull(this[_position$]));
        if (readBytes < 0) {
          this[_readInProgress] = false;
          if (!dart.test(this[_unsubscribed])) {
            this[_controller].addError(new core.RangeError.new("Bad end position: " + dart.str(end)));
            this[_closeFile]();
            this[_unsubscribed] = true;
          }
          return;
        }
      }
      dart.nullCheck(this[_openedFile]).read(readBytes).then(T$.Null(), dart.fn(block => {
        if (block == null) dart.nullFailed(I[128], 106, 40, "block");
        this[_readInProgress] = false;
        if (dart.test(this[_unsubscribed])) {
          this[_closeFile]();
          return;
        }
        this[_position$] = dart.notNull(this[_position$]) + dart.notNull(block[$length]);
        if (block[$length] === 0 || this[_end$0] != null && this[_position$] == this[_end$0]) {
          this[_atEnd] = true;
        }
        if (!dart.test(this[_atEnd]) && !dart.test(this[_controller].isPaused)) {
          this[_readBlock]();
        }
        if (dart.notNull(block[$length]) > 0) {
          this[_controller].add(block);
        }
        if (dart.test(this[_atEnd])) {
          this[_closeFile]();
        }
      }, T$2.Uint8ListToNull())).catchError(dart.fn((e, s) => {
        if (!dart.test(this[_unsubscribed])) {
          this[_controller].addError(T$.Object()[_as](e), T$.StackTraceN()[_as](s));
          this[_closeFile]();
          this[_unsubscribed] = true;
        }
      }, T$.dynamicAnddynamicToNull()));
    }
    [_start$2]() {
      if (dart.notNull(this[_position$]) < 0) {
        this[_controller].addError(new core.RangeError.new("Bad start position: " + dart.str(this[_position$])));
        this[_controller].close();
        this[_closeCompleter].complete();
        return;
      }
      const onReady = file => {
        if (file == null) dart.nullFailed(I[128], 147, 35, "file");
        this[_openedFile] = file;
        this[_readInProgress] = false;
        this[_readBlock]();
      };
      dart.fn(onReady, T$2.RandomAccessFileTovoid());
      const onOpenFile = file => {
        if (file == null) dart.nullFailed(I[128], 153, 38, "file");
        if (dart.notNull(this[_position$]) > 0) {
          file.setPosition(this[_position$]).then(T$.void(), onReady, {onError: dart.fn((e, s) => {
              this[_controller].addError(T$.Object()[_as](e), T$.StackTraceN()[_as](s));
              this[_readInProgress] = false;
              this[_closeFile]();
            }, T$.dynamicAnddynamicToNull())});
        } else {
          onReady(file);
        }
      };
      dart.fn(onOpenFile, T$2.RandomAccessFileTovoid());
      const openFailed = (error, stackTrace) => {
        this[_controller].addError(T$.Object()[_as](error), T$.StackTraceN()[_as](stackTrace));
        this[_controller].close();
        this[_closeCompleter].complete();
      };
      dart.fn(openFailed, T$.dynamicAnddynamicTovoid());
      let path = this[_path$0];
      let openedFile = this[_openedFile];
      if (openedFile != null) {
        onOpenFile(openedFile);
      } else if (path != null) {
        io.File.new(path).open({mode: io.FileMode.read}).then(T$.void(), onOpenFile, {onError: openFailed});
      } else {
        try {
          onOpenFile(io._File._openStdioSync(0));
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            openFailed(e, s);
          } else
            throw t$36$35e;
        }
      }
    }
  };
  (io._FileStream.new = function(_path, position, _end) {
    let t$36166;
    this[___FileStream__controller] = null;
    this[___FileStream__controller_isSet] = false;
    this[_closeCompleter] = async.Completer.new();
    this[_unsubscribed] = false;
    this[_readInProgress] = true;
    this[_closed] = false;
    this[_atEnd] = false;
    this[_openedFile] = null;
    this[_path$0] = _path;
    this[_end$0] = _end;
    this[_position$] = (t$36166 = position, t$36166 == null ? 0 : t$36166);
    this.$ti = this.$ti || T$2._FileStream();
    dart.global.Object.getPrototypeOf(io._FileStream).new.call(this);
    ;
  }).prototype = io._FileStream.prototype;
  (io._FileStream.forStdin = function() {
    this[___FileStream__controller] = null;
    this[___FileStream__controller_isSet] = false;
    this[_closeCompleter] = async.Completer.new();
    this[_unsubscribed] = false;
    this[_readInProgress] = true;
    this[_closed] = false;
    this[_atEnd] = false;
    this[_openedFile] = null;
    this[_end$0] = null;
    this[_path$0] = null;
    this[_position$] = 0;
    this.$ti = this.$ti || T$2._FileStream();
    dart.global.Object.getPrototypeOf(io._FileStream).new.call(this);
    ;
  }).prototype = io._FileStream.prototype;
  (io._FileStream.forRandomAccessFile = function(f) {
    if (f == null) dart.nullFailed(I[128], 51, 52, "f");
    this[___FileStream__controller] = null;
    this[___FileStream__controller_isSet] = false;
    this[_closeCompleter] = async.Completer.new();
    this[_unsubscribed] = false;
    this[_readInProgress] = true;
    this[_closed] = false;
    this[_atEnd] = false;
    this[_end$0] = null;
    this[_path$0] = null;
    this[_position$] = 0;
    this[_openedFile] = f;
    this.$ti = this.$ti || T$2._FileStream();
    dart.global.Object.getPrototypeOf(io._FileStream).new.call(this);
    ;
  }).prototype = io._FileStream.prototype;
  dart.addRtiResources(io._FileStream, ["io|_FileStream"]);
  dart.setMethodSignature(io._FileStream, () => dart.global.Object.setPrototypeOf({
    listen: T$2.Fn__ToStreamSubscriptionOfUint8List(),
    [_closeFile]: T$.VoidToFuture(),
    [_readBlock]: T$.VoidTovoid(),
    [_start$2]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._FileStream))));
  dart.setGetterSignature(io._FileStream, () => dart.global.Object.setPrototypeOf({[_controller]: T$2.StreamControllerOfUint8List()}, dart.getGetters(dart.global.Object.getPrototypeOf(io._FileStream))));
  dart.setSetterSignature(io._FileStream, () => dart.global.Object.setPrototypeOf({[_controller]: T$2.StreamControllerOfUint8List()}, dart.getSetters(dart.global.Object.getPrototypeOf(io._FileStream))));
  dart.setLibraryUri(io._FileStream, I[119]);
  dart.setFieldSignature(io._FileStream, () => dart.global.Object.setPrototypeOf({
    [___FileStream__controller]: {type: T$2.StreamControllerNOfUint8List(), isConst: false, isFinal: false, libraryUri: I[39]},
    [___FileStream__controller_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_path$0]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_openedFile]: {type: T$2.RandomAccessFileN(), isConst: false, isFinal: false, libraryUri: I[119]},
    [_position$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_end$0]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closeCompleter]: {type: T$2.Completer(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_unsubscribed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_readInProgress]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_atEnd]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._FileStream))));
  var _file = dart.privateName(io, "_file");
  var _openFuture = dart.privateName(io, "_openFuture");
  io._FileStreamConsumer = class _FileStreamConsumer extends core.Object {
    static ['_#new#tearOff'](file, mode) {
      if (file == null) dart.nullFailed(I[128], 193, 28, "file");
      if (mode == null) dart.nullFailed(I[128], 193, 43, "mode");
      return new io._FileStreamConsumer.new(file, mode);
    }
    static ['_#fromStdio#tearOff'](fd) {
      if (fd == null) dart.nullFailed(I[128], 197, 37, "fd");
      return new io._FileStreamConsumer.fromStdio(fd);
    }
    static ['_#fromRandomAccessFile#tearOff'](f) {
      if (f == null) dart.nullFailed(I[128], 200, 61, "f");
      return new io._FileStreamConsumer.fromRandomAccessFile(f);
    }
    addStream(stream) {
      T$2.StreamOfListOfint()[_as](stream);
      if (stream == null) dart.nullFailed(I[128], 203, 45, "stream");
      let completer = G.CompleterOfFileN().sync();
      this[_openFuture].then(T$.Null(), dart.fn(openedFile => {
        if (openedFile == null) dart.nullFailed(I[128], 205, 23, "openedFile");
        let _subscription = null;
        let t$36$35_subscription$35isSet = false;
        function t$36$35_subscription$35get() {
          return t$36$35_subscription$35isSet ? _subscription : dart.throw(new _internal.LateError.localNI("_subscription"));
        }
        function t$36$35_subscription$35set(_subscription$35param) {
          if (_subscription$35param == null) dart.nullFailed(I[128], 206, 42, "_subscription#param");
          t$36$35_subscription$35isSet = true;
          return _subscription = _subscription$35param;
        }
        function error(e, stackTrace) {
          if (stackTrace == null) dart.nullFailed(I[128], 207, 32, "stackTrace");
          t$36$35_subscription$35get().cancel();
          openedFile.close();
          completer.completeError(T$.Object()[_as](e), stackTrace);
        }
        dart.fn(error, T$1.dynamicAndStackTraceTovoid());
        t$36$35_subscription$35set(stream.listen(dart.fn(d => {
          if (d == null) dart.nullFailed(I[128], 213, 38, "d");
          t$36$35_subscription$35get().pause();
          try {
            openedFile.writeFrom(d, 0, d[$length]).then(T$.void(), dart.fn(_ => {
              if (_ == null) dart.nullFailed(I[128], 218, 22, "_");
              return t$36$35_subscription$35get().resume();
            }, T$2.RandomAccessFileTovoid()), {onError: error});
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            let stackTrace = dart.stackTrace(t$36$35e);
            if (T$.Object()[_is](e)) {
              error(e, stackTrace);
            } else
              throw t$36$35e;
          }
        }, T$.ListOfintTovoid()), {onDone: dart.fn(() => {
            completer.complete(this[_file]);
          }, T$.VoidTovoid()), onError: error, cancelOnError: true}));
      }, T$2.RandomAccessFileToNull())).catchError(dart.bind(completer, 'completeError'));
      return completer.future;
    }
    close() {
      return this[_openFuture].then(T$.void(), dart.fn(openedFile => {
        if (openedFile == null) dart.nullFailed(I[128], 230, 25, "openedFile");
        return openedFile.close();
      }, T$2.RandomAccessFileToFutureOfvoid())).then(T$2.FileN(), dart.fn(_ => this[_file], T$2.voidToFileN()));
    }
  };
  (io._FileStreamConsumer.new = function(file, mode) {
    if (file == null) dart.nullFailed(I[128], 193, 28, "file");
    if (mode == null) dart.nullFailed(I[128], 193, 43, "mode");
    this[_file] = file;
    this[_openFuture] = file.open({mode: mode});
    ;
  }).prototype = io._FileStreamConsumer.prototype;
  (io._FileStreamConsumer.fromStdio = function(fd) {
    if (fd == null) dart.nullFailed(I[128], 197, 37, "fd");
    this[_file] = null;
    this[_openFuture] = G.FutureOfRandomAccessFile().value(io._File._openStdioSync(fd));
    ;
  }).prototype = io._FileStreamConsumer.prototype;
  (io._FileStreamConsumer.fromRandomAccessFile = function(f) {
    if (f == null) dart.nullFailed(I[128], 200, 61, "f");
    this[_file] = null;
    this[_openFuture] = G.FutureOfRandomAccessFile().value(f);
    ;
  }).prototype = io._FileStreamConsumer.prototype;
  dart.addRtiResources(io._FileStreamConsumer, ["io|_FileStreamConsumer", "async|StreamConsumer"]);
  dart.setMethodSignature(io._FileStreamConsumer, () => dart.global.Object.setPrototypeOf({
    addStream: T$2.ObjectNToFutureOfFileN(),
    close: T$2.VoidToFutureOfFileN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._FileStreamConsumer))));
  dart.setLibraryUri(io._FileStreamConsumer, I[119]);
  dart.setFieldSignature(io._FileStreamConsumer, () => dart.global.Object.setPrototypeOf({
    [_file]: {type: T$2.FileN(), isConst: false, isFinal: false, libraryUri: I[119]},
    [_openFuture]: {type: T$2.FutureOfRandomAccessFile(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._FileStreamConsumer))));
  var _path$1 = dart.privateName(io, "_File._path");
  var _rawPath$0 = dart.privateName(io, "_File._rawPath");
  var _tryDecode = dart.privateName(io, "_tryDecode");
  io._File = class _File extends io.FileSystemEntity {
    get [_path$0]() {
      return this[_path$1];
    }
    set [_path$0](value) {
      super[_path$0] = value;
    }
    get [_rawPath$]() {
      return this[_rawPath$0];
    }
    set [_rawPath$](value) {
      super[_rawPath$] = value;
    }
    static ['_#new#tearOff'](path) {
      if (path == null) dart.nullFailed(I[128], 238, 16, "path");
      return new io._File.new(path);
    }
    static ['_#fromRawPath#tearOff'](rawPath) {
      if (rawPath == null) dart.nullFailed(I[128], 242, 31, "rawPath");
      return new io._File.fromRawPath(rawPath);
    }
    get path() {
      return this[_path$0];
    }
    static _namespacePointer() {
      return io._Namespace._namespacePointer;
    }
    static _dispatchWithNamespace(request, data) {
      if (request == null) dart.nullFailed(I[128], 256, 53, "request");
      if (data == null) dart.nullFailed(I[128], 256, 67, "data");
      data[$_set](0, io._File._namespacePointer());
      return io._IOService._dispatch(request, data);
    }
    exists() {
      return io._File._dispatchWithNamespace(0, [null, this[_rawPath$]]).then(T$.bool(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot check existence", this.path);
        return T$.bool()[_as](response);
      }, T$.ObjectNTobool()));
    }
    static _exists(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 111, 29, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 111, 50, "rawPath");
      dart.throw(new core.UnsupportedError.new("File._exists"));
    }
    existsSync() {
      let result = io._File._exists(io._Namespace._namespace, this[_rawPath$]);
      io._File.throwIfError(T$.Object()[_as](result), "Cannot check existence of file", this.path);
      return T$.bool()[_as](result);
    }
    get absolute() {
      return io.File.new(this[_absolutePath]);
    }
    create(opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[128], 279, 29, "recursive");
      let exclusive = opts && 'exclusive' in opts ? opts.exclusive : false;
      if (exclusive == null) dart.nullFailed(I[128], 279, 53, "exclusive");
      let result = dart.test(recursive) ? this.parent.create({recursive: true}) : G.FutureOfNull().value(null);
      return result.then(T$.ObjectN(), dart.fn(_ => io._File._dispatchWithNamespace(1, [null, this[_rawPath$], exclusive]), T$2.DirectoryNToFutureOfObjectN())).then(T$2.File(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot create file", this.path);
        return this;
      }, T$2.ObjectNTo_File()));
    }
    static _create(namespace, rawPath, exclusive) {
      if (namespace == null) dart.nullFailed(I[121], 116, 29, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 116, 50, "rawPath");
      if (exclusive == null) dart.nullFailed(I[121], 116, 64, "exclusive");
      dart.throw(new core.UnsupportedError.new("File._create"));
    }
    static _createLink(namespace, rawPath, target) {
      if (namespace == null) dart.nullFailed(I[121], 121, 33, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 121, 54, "rawPath");
      if (target == null) dart.nullFailed(I[121], 121, 70, "target");
      dart.throw(new core.UnsupportedError.new("File._createLink"));
    }
    static _createPipe(namespace) {
      if (namespace == null) dart.nullFailed(I[121], 126, 47, "namespace");
      dart.throw(new core.UnsupportedError.new("File._createPipe"));
    }
    static _linkTarget(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 131, 33, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 131, 54, "rawPath");
      dart.throw(new core.UnsupportedError.new("File._linkTarget"));
    }
    createSync(opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[128], 301, 25, "recursive");
      let exclusive = opts && 'exclusive' in opts ? opts.exclusive : false;
      if (exclusive == null) dart.nullFailed(I[128], 301, 49, "exclusive");
      if (dart.test(recursive)) {
        this.parent.createSync({recursive: true});
      }
      let result = io._File._create(io._Namespace._namespace, this[_rawPath$], exclusive);
      io._File.throwIfError(T$.Object()[_as](result), "Cannot create file", this.path);
    }
    [_delete](opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[128], 309, 30, "recursive");
      if (dart.test(recursive)) {
        return io.Directory.new(this.path).delete({recursive: true}).then(T$2.File(), dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[128], 311, 64, "_");
          return this;
        }, T$2.FileSystemEntityTo_File()));
      }
      return io._File._dispatchWithNamespace(2, [null, this[_rawPath$]]).then(T$2.File(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot delete file", this.path);
        return this;
      }, T$2.ObjectNTo_File()));
    }
    static _deleteNative(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 136, 35, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 136, 56, "rawPath");
      dart.throw(new core.UnsupportedError.new("File._deleteNative"));
    }
    static _deleteLinkNative(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 141, 39, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 141, 60, "rawPath");
      dart.throw(new core.UnsupportedError.new("File._deleteLinkNative"));
    }
    [_deleteSync](opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[128], 324, 26, "recursive");
      if (dart.test(recursive)) {
        return io.Directory.fromRawPath(this[_rawPath$]).deleteSync({recursive: true});
      }
      let result = io._File._deleteNative(io._Namespace._namespace, this[_rawPath$]);
      io._File.throwIfError(T$.Object()[_as](result), "Cannot delete file", this.path);
    }
    rename(newPath) {
      if (newPath == null) dart.nullFailed(I[128], 332, 30, "newPath");
      return io._File._dispatchWithNamespace(3, [null, this[_rawPath$], newPath]).then(T$2.File(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot rename file to '" + dart.str(newPath) + "'", this.path);
        return io.File.new(newPath);
      }, T$2.ObjectNToFile()));
    }
    static _rename(namespace, oldPath, newPath) {
      if (namespace == null) dart.nullFailed(I[121], 146, 29, "namespace");
      if (oldPath == null) dart.nullFailed(I[121], 146, 50, "oldPath");
      if (newPath == null) dart.nullFailed(I[121], 146, 66, "newPath");
      dart.throw(new core.UnsupportedError.new("File._rename"));
    }
    static _renameLink(namespace, oldPath, newPath) {
      if (namespace == null) dart.nullFailed(I[121], 151, 33, "namespace");
      if (oldPath == null) dart.nullFailed(I[121], 151, 54, "oldPath");
      if (newPath == null) dart.nullFailed(I[121], 151, 70, "newPath");
      dart.throw(new core.UnsupportedError.new("File._renameLink"));
    }
    renameSync(newPath) {
      if (newPath == null) dart.nullFailed(I[128], 347, 26, "newPath");
      let result = io._File._rename(io._Namespace._namespace, this[_rawPath$], newPath);
      io._File.throwIfError(T$.Object()[_as](result), "Cannot rename file to '" + dart.str(newPath) + "'", this.path);
      return io.File.new(newPath);
    }
    copy(newPath) {
      if (newPath == null) dart.nullFailed(I[128], 353, 28, "newPath");
      return io._File._dispatchWithNamespace(4, [null, this[_rawPath$], newPath]).then(T$2.File(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot copy file to '" + dart.str(newPath) + "'", this.path);
        return io.File.new(newPath);
      }, T$2.ObjectNToFile()));
    }
    static _copy(namespace, oldPath, newPath) {
      if (namespace == null) dart.nullFailed(I[121], 156, 27, "namespace");
      if (oldPath == null) dart.nullFailed(I[121], 156, 48, "oldPath");
      if (newPath == null) dart.nullFailed(I[121], 156, 64, "newPath");
      dart.throw(new core.UnsupportedError.new("File._copy"));
    }
    copySync(newPath) {
      if (newPath == null) dart.nullFailed(I[128], 364, 24, "newPath");
      let result = io._File._copy(io._Namespace._namespace, this[_rawPath$], newPath);
      io._File.throwIfError(T$.Object()[_as](result), "Cannot copy file to '" + dart.str(newPath) + "'", this.path);
      return io.File.new(newPath);
    }
    open(opts) {
      let mode = opts && 'mode' in opts ? opts.mode : C[156] || CT.C156;
      if (mode == null) dart.nullFailed(I[128], 370, 43, "mode");
      if (!dart.equals(mode, io.FileMode.read) && !dart.equals(mode, io.FileMode.write) && !dart.equals(mode, io.FileMode.append) && !dart.equals(mode, io.FileMode.writeOnly) && !dart.equals(mode, io.FileMode.writeOnlyAppend)) {
        return G.FutureOfRandomAccessFile().error(new core.ArgumentError.new("Invalid file mode for this operation"));
      }
      return io._File._dispatchWithNamespace(5, [null, this[_rawPath$], mode[_mode]]).then(T$2.RandomAccessFile(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot open file", this.path);
        return new io._RandomAccessFile.new(T$.int()[_as](response), this.path);
      }, T$2.ObjectNTo_RandomAccessFile()));
    }
    length() {
      return io._File._dispatchWithNamespace(12, [null, this[_rawPath$]]).then(T$.int(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot retrieve length of file", this.path);
        return T$.int()[_as](response);
      }, T$.ObjectNToint()));
    }
    static _lengthFromPath(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 161, 37, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 161, 58, "rawPath");
      dart.throw(new core.UnsupportedError.new("File._lengthFromPath"));
    }
    lengthSync() {
      let result = io._File._lengthFromPath(io._Namespace._namespace, this[_rawPath$]);
      io._File.throwIfError(T$.Object()[_as](result), "Cannot retrieve length of file", this.path);
      return T$.int()[_as](result);
    }
    lastAccessed() {
      return io._File._dispatchWithNamespace(13, [null, this[_rawPath$]]).then(T$2.DateTime(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot retrieve access time", this.path);
        return new core.DateTime.fromMillisecondsSinceEpoch(T$.int()[_as](response));
      }, T$2.ObjectNToDateTime()));
    }
    static _lastAccessed(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 171, 35, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 171, 56, "rawPath");
      dart.throw(new core.UnsupportedError.new("File._lastAccessed"));
    }
    lastAccessedSync() {
      let ms = io._File._lastAccessed(io._Namespace._namespace, this[_rawPath$]);
      io._File.throwIfError(T$.Object()[_as](ms), "Cannot retrieve access time", this.path);
      return new core.DateTime.fromMillisecondsSinceEpoch(T$.int()[_as](ms));
    }
    setLastAccessed(time) {
      if (time == null) dart.nullFailed(I[128], 418, 35, "time");
      let millis = time.millisecondsSinceEpoch;
      return io._File._dispatchWithNamespace(14, [null, this[_rawPath$], millis]).then(T$.dynamic(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot set access time", this.path);
        return null;
      }, T$.ObjectNToNull()));
    }
    static _setLastAccessed(namespace, rawPath, millis) {
      if (namespace == null) dart.nullFailed(I[121], 181, 38, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 181, 59, "rawPath");
      if (millis == null) dart.nullFailed(I[121], 181, 72, "millis");
      dart.throw(new core.UnsupportedError.new("File._setLastAccessed"));
    }
    setLastAccessedSync(time) {
      if (time == null) dart.nullFailed(I[128], 431, 37, "time");
      let millis = time.millisecondsSinceEpoch;
      let result = io._File._setLastAccessed(io._Namespace._namespace, this[_rawPath$], millis);
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("Failed to set file access time", this.path, result));
      }
    }
    lastModified() {
      return io._File._dispatchWithNamespace(15, [null, this[_rawPath$]]).then(T$2.DateTime(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot retrieve modification time", this.path);
        return new core.DateTime.fromMillisecondsSinceEpoch(T$.int()[_as](response));
      }, T$2.ObjectNToDateTime()));
    }
    static _lastModified(namespace, rawPath) {
      if (namespace == null) dart.nullFailed(I[121], 166, 35, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 166, 56, "rawPath");
      dart.throw(new core.UnsupportedError.new("File._lastModified"));
    }
    lastModifiedSync() {
      let ms = io._File._lastModified(io._Namespace._namespace, this[_rawPath$]);
      io._File.throwIfError(T$.Object()[_as](ms), "Cannot retrieve modification time", this.path);
      return new core.DateTime.fromMillisecondsSinceEpoch(T$.int()[_as](ms));
    }
    setLastModified(time) {
      if (time == null) dart.nullFailed(I[128], 457, 35, "time");
      let millis = time.millisecondsSinceEpoch;
      return io._File._dispatchWithNamespace(16, [null, this[_rawPath$], millis]).then(T$.dynamic(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot set modification time", this.path);
        return null;
      }, T$.ObjectNToNull()));
    }
    static _setLastModified(namespace, rawPath, millis) {
      if (namespace == null) dart.nullFailed(I[121], 176, 38, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 176, 59, "rawPath");
      if (millis == null) dart.nullFailed(I[121], 176, 72, "millis");
      dart.throw(new core.UnsupportedError.new("File._setLastModified"));
    }
    setLastModifiedSync(time) {
      if (time == null) dart.nullFailed(I[128], 470, 37, "time");
      let millis = time.millisecondsSinceEpoch;
      let result = io._File._setLastModified(io._Namespace._namespace, this[_rawPath$], millis);
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("Failed to set file modification time", this.path, result));
      }
    }
    static _open(namespace, rawPath, mode) {
      if (namespace == null) dart.nullFailed(I[121], 186, 27, "namespace");
      if (rawPath == null) dart.nullFailed(I[121], 186, 48, "rawPath");
      if (mode == null) dart.nullFailed(I[121], 186, 61, "mode");
      dart.throw(new core.UnsupportedError.new("File._open"));
    }
    openSync(opts) {
      let mode = opts && 'mode' in opts ? opts.mode : C[156] || CT.C156;
      if (mode == null) dart.nullFailed(I[128], 481, 39, "mode");
      if (!dart.equals(mode, io.FileMode.read) && !dart.equals(mode, io.FileMode.write) && !dart.equals(mode, io.FileMode.append) && !dart.equals(mode, io.FileMode.writeOnly) && !dart.equals(mode, io.FileMode.writeOnlyAppend)) {
        dart.throw(new core.ArgumentError.new("Invalid file mode for this operation"));
      }
      let id = io._File._open(io._Namespace._namespace, this[_rawPath$], mode[_mode]);
      io._File.throwIfError(T$.Object()[_as](id), "Cannot open file", this.path);
      return new io._RandomAccessFile.new(T$.int()[_as](id), this[_path$0]);
    }
    static _openStdio(fd) {
      if (fd == null) dart.nullFailed(I[121], 191, 29, "fd");
      dart.throw(new core.UnsupportedError.new("File._openStdio"));
    }
    static _openStdioSync(fd) {
      if (fd == null) dart.nullFailed(I[128], 496, 46, "fd");
      let id = io._File._openStdio(fd);
      if (id === 0) {
        dart.throw(new io.FileSystemException.new("Cannot open stdio file for: " + dart.str(fd)));
      }
      return new io._RandomAccessFile.new(id, "");
    }
    openRead(start = null, end = null) {
      return new io._FileStream.new(this.path, start, end);
    }
    openWrite(opts) {
      let mode = opts && 'mode' in opts ? opts.mode : C[157] || CT.C157;
      if (mode == null) dart.nullFailed(I[128], 508, 30, "mode");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[128], 508, 62, "encoding");
      if (!dart.equals(mode, io.FileMode.write) && !dart.equals(mode, io.FileMode.append) && !dart.equals(mode, io.FileMode.writeOnly) && !dart.equals(mode, io.FileMode.writeOnlyAppend)) {
        dart.throw(new core.ArgumentError.new("Invalid file mode for this operation"));
      }
      let consumer = new io._FileStreamConsumer.new(this, mode);
      return io.IOSink.new(consumer, {encoding: encoding});
    }
    readAsBytes() {
      function readUnsized(file) {
        if (file == null) dart.nullFailed(I[128], 520, 52, "file");
        let builder = _internal.BytesBuilder.new({copy: false});
        let completer = G.CompleterOfUint8List().new();
        function read() {
          file.read(65536).then(T$.Null(), dart.fn(data => {
            if (data == null) dart.nullFailed(I[128], 524, 37, "data");
            if (dart.notNull(data[$length]) > 0) {
              builder.add(data);
              read();
            } else {
              completer.complete(builder.takeBytes());
            }
          }, T$2.Uint8ListToNull()), {onError: dart.bind(completer, 'completeError')});
        }
        dart.fn(read, T$.VoidTovoid());
        read();
        return completer.future;
      }
      dart.fn(readUnsized, T$2.RandomAccessFileToFutureOfUint8List());
      function readSized(file, length) {
        if (file == null) dart.nullFailed(I[128], 538, 50, "file");
        if (length == null) dart.nullFailed(I[128], 538, 60, "length");
        let data = _native_typed_data.NativeUint8List.new(length);
        let offset = 0;
        let completer = G.CompleterOfUint8List().new();
        function read() {
          file.readInto(data, offset, math.min(T$.int(), offset + 16777216, length)).then(T$.Null(), dart.fn(readSize => {
            if (readSize == null) dart.nullFailed(I[128], 544, 14, "readSize");
            if (dart.notNull(readSize) > 0) {
              offset = offset + dart.notNull(readSize);
              read();
            } else {
              if (!(readSize === 0)) dart.assertFailed(null, I[128], 549, 20, "readSize == 0");
              if (offset < dart.notNull(length)) {
                data = typed_data.Uint8List.sublistView(data, 0, offset);
              }
              completer.complete(data);
            }
          }, T$2.intToNull()), {onError: dart.bind(completer, 'completeError')});
        }
        dart.fn(read, T$.VoidTovoid());
        read();
        return completer.future;
      }
      dart.fn(readSized, T$2.RandomAccessFileAndintToFutureOfUint8List());
      return this.open().then(T$.Uint8List(), dart.fn(file => {
        if (file == null) dart.nullFailed(I[128], 562, 25, "file");
        return file.length().then(T$.Uint8List(), dart.fn(length => {
          if (length == null) dart.nullFailed(I[128], 563, 34, "length");
          if (length === 0) {
            return readUnsized(file);
          }
          return readSized(file, length);
        }, T$2.intToFutureOfUint8List())).whenComplete(dart.bind(file, 'close'));
      }, T$2.RandomAccessFileToFutureOfUint8List()));
    }
    readAsBytesSync() {
      let opened = this.openSync();
      try {
        let data = null;
        let length = opened.lengthSync();
        if (length === 0) {
          let builder = _internal.BytesBuilder.new({copy: false});
          do {
            data = opened.readSync(65536);
            if (dart.notNull(data[$length]) > 0) {
              builder.add(data);
            }
          } while (dart.notNull(data[$length]) > 0);
          data = builder.takeBytes();
        } else {
          data = _native_typed_data.NativeUint8List.new(length);
          let offset = 0;
          while (offset < dart.notNull(length)) {
            let readSize = opened.readIntoSync(data, offset, math.min(T$.int(), offset + 16777216, length));
            if (readSize === 0) {
              break;
            }
            offset = offset + dart.notNull(readSize);
          }
          if (offset < dart.notNull(length)) {
            data = typed_data.Uint8List.view(data[$buffer], 0, offset);
          }
        }
        return data;
      } finally {
        opened.closeSync();
      }
    }
    [_tryDecode](bytes, encoding) {
      if (bytes == null) dart.nullFailed(I[128], 611, 31, "bytes");
      if (encoding == null) dart.nullFailed(I[128], 611, 47, "encoding");
      try {
        return encoding.decode(bytes);
      } catch (t$36$35e) {
        let _ = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](_)) {
          dart.throw(new io.FileSystemException.new("Failed to decode data using encoding '" + dart.str(encoding.name) + "'", this.path));
        } else
          throw t$36$35e;
      }
    }
    readAsString(opts) {
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[128], 620, 41, "encoding");
      return async.async(T$.String(), (function* readAsString() {
        return this[_tryDecode](yield this.readAsBytes(), encoding);
      }).bind(this));
    }
    readAsStringSync(opts) {
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[128], 623, 37, "encoding");
      return this[_tryDecode](this.readAsBytesSync(), encoding);
    }
    readAsLines(opts) {
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[128], 626, 46, "encoding");
      return this.readAsString({encoding: encoding}).then(T$0.ListOfString(), dart.bind(C[165] || CT.C165, 'convert'));
    }
    readAsLinesSync(opts) {
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[128], 629, 42, "encoding");
      return (C[165] || CT.C165).convert(this.readAsStringSync({encoding: encoding}));
    }
    writeAsBytes(bytes, opts) {
      if (bytes == null) dart.nullFailed(I[128], 632, 39, "bytes");
      let mode = opts && 'mode' in opts ? opts.mode : C[157] || CT.C157;
      if (mode == null) dart.nullFailed(I[128], 633, 17, "mode");
      let flush = opts && 'flush' in opts ? opts.flush : false;
      if (flush == null) dart.nullFailed(I[128], 633, 45, "flush");
      return this.open({mode: mode}).then(T$2.File(), dart.fn(file => {
        if (file == null) dart.nullFailed(I[128], 634, 35, "file");
        return file.writeFrom(bytes, 0, bytes[$length]).then(T$2.File(), dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[128], 635, 65, "_");
          if (dart.test(flush)) return file.flush().then(T$2.File(), dart.fn(_ => {
            if (_ == null) dart.nullFailed(I[128], 636, 46, "_");
            return this;
          }, T$2.RandomAccessFileTo_File()));
          return this;
        }, T$2.RandomAccessFileToFutureOrOfFile())).whenComplete(dart.bind(file, 'close'));
      }, T$2.RandomAccessFileToFutureOfFile()));
    }
    writeAsBytesSync(bytes, opts) {
      if (bytes == null) dart.nullFailed(I[128], 642, 35, "bytes");
      let mode = opts && 'mode' in opts ? opts.mode : C[157] || CT.C157;
      if (mode == null) dart.nullFailed(I[128], 643, 17, "mode");
      let flush = opts && 'flush' in opts ? opts.flush : false;
      if (flush == null) dart.nullFailed(I[128], 643, 45, "flush");
      let opened = this.openSync({mode: mode});
      try {
        opened.writeFromSync(bytes, 0, bytes[$length]);
        if (dart.test(flush)) opened.flushSync();
      } finally {
        opened.closeSync();
      }
    }
    writeAsString(contents, opts) {
      if (contents == null) dart.nullFailed(I[128], 653, 37, "contents");
      let mode = opts && 'mode' in opts ? opts.mode : C[157] || CT.C157;
      if (mode == null) dart.nullFailed(I[128], 654, 17, "mode");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[128], 655, 16, "encoding");
      let flush = opts && 'flush' in opts ? opts.flush : false;
      if (flush == null) dart.nullFailed(I[128], 656, 12, "flush");
      try {
        return this.writeAsBytes(encoding.encode(contents), {mode: mode, flush: flush});
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          return G.FutureOfFile().error(e);
        } else
          throw t$36$35e;
      }
    }
    writeAsStringSync(contents, opts) {
      if (contents == null) dart.nullFailed(I[128], 664, 33, "contents");
      let mode = opts && 'mode' in opts ? opts.mode : C[157] || CT.C157;
      if (mode == null) dart.nullFailed(I[128], 665, 17, "mode");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[128], 666, 16, "encoding");
      let flush = opts && 'flush' in opts ? opts.flush : false;
      if (flush == null) dart.nullFailed(I[128], 667, 12, "flush");
      this.writeAsBytesSync(encoding.encode(contents), {mode: mode, flush: flush});
    }
    toString() {
      return "File: '" + dart.str(this.path) + "'";
    }
    static throwIfError(result, msg, path) {
      if (result == null) dart.nullFailed(I[128], 673, 30, "result");
      if (msg == null) dart.nullFailed(I[128], 673, 45, "msg");
      if (path == null) dart.nullFailed(I[128], 673, 57, "path");
      if (T$2.OSError()[_is](result)) {
        dart.throw(io.FileSystemException._fromOSError(result, msg, path));
      }
    }
    static _checkNotNull(T, t, name) {
      if (name == null) dart.nullFailed(I[128], 680, 41, "name");
      core.ArgumentError.checkNotNull(T, t, name);
      return t;
    }
  };
  (io._File.new = function(path) {
    if (path == null) dart.nullFailed(I[128], 238, 16, "path");
    this[_path$1] = io._File._checkNotNull(T$.String(), path, "path");
    this[_rawPath$0] = io.FileSystemEntity._toUtf8Array(path);
    ;
  }).prototype = io._File.prototype;
  (io._File.fromRawPath = function(rawPath) {
    if (rawPath == null) dart.nullFailed(I[128], 242, 31, "rawPath");
    this[_rawPath$0] = io.FileSystemEntity._toNullTerminatedUtf8Array(io._File._checkNotNull(T$.Uint8List(), rawPath, "rawPath"));
    this[_path$1] = io.FileSystemEntity._toStringFromUtf8Array(rawPath);
    ;
  }).prototype = io._File.prototype;
  dart.addRtiResources(io._File, ["io|_File", "io|File", "io|FileSystemEntity"]);
  dart.setMethodSignature(io._File, () => dart.global.Object.setPrototypeOf({
    exists: T$1.VoidToFutureOfbool(),
    existsSync: T$.VoidTobool(),
    create: T$2.__ToFutureOfFile(),
    createSync: T$2.__Tovoid$2(),
    [_delete]: T$2.__ToFutureOfFile$1(),
    [_deleteSync]: T$2.__Tovoid$1(),
    rename: T$2.StringToFutureOfFile(),
    renameSync: T$2.StringToFile(),
    copy: T$2.StringToFutureOfFile(),
    copySync: T$2.StringToFile(),
    open: T$2.__ToFutureOfRandomAccessFile(),
    length: T$2.VoidToFutureOfint(),
    lengthSync: T$.VoidToint(),
    lastAccessed: T$2.VoidToFutureOfDateTime(),
    lastAccessedSync: T$2.VoidToDateTime(),
    setLastAccessed: T$2.DateTimeToFuture(),
    setLastAccessedSync: T$2.DateTimeTovoid(),
    lastModified: T$2.VoidToFutureOfDateTime(),
    lastModifiedSync: T$2.VoidToDateTime(),
    setLastModified: T$2.DateTimeToFuture(),
    setLastModifiedSync: T$2.DateTimeTovoid(),
    openSync: T$2.__ToRandomAccessFile(),
    openRead: T$2.intNAndintNToStreamOfListOfint(),
    openWrite: T$2.__ToIOSink(),
    readAsBytes: T$2.VoidToFutureOfUint8List(),
    readAsBytesSync: T$.VoidToUint8List(),
    [_tryDecode]: T$2.ListOfintAndEncodingToString(),
    readAsString: T$2.__ToFutureOfString(),
    readAsStringSync: T$2.__ToString(),
    readAsLines: T$2.__ToFutureOfListOfString(),
    readAsLinesSync: T$2.__ToListOfString(),
    writeAsBytes: T$2.ListOfint__ToFutureOfFile(),
    writeAsBytesSync: T$2.ListOfint__Tovoid(),
    writeAsString: T$2.String__ToFutureOfFile(),
    writeAsStringSync: T$2.String__Tovoid$2()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._File))));
  dart.setStaticMethodSignature(io._File, () => ['_namespacePointer', '_dispatchWithNamespace', '_exists', '_create', '_createLink', '_createPipe', '_linkTarget', '_deleteNative', '_deleteLinkNative', '_rename', '_renameLink', '_copy', '_lengthFromPath', '_lastAccessed', '_setLastAccessed', '_lastModified', '_setLastModified', '_open', '_openStdio', '_openStdioSync', 'throwIfError', '_checkNotNull']);
  dart.setGetterSignature(io._File, () => dart.global.Object.setPrototypeOf({
    path: T$.String(),
    absolute: T$2.File()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._File))));
  dart.setLibraryUri(io._File, I[119]);
  dart.setFieldSignature(io._File, () => dart.global.Object.setPrototypeOf({
    [_path$0]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_rawPath$]: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._File))));
  dart.defineExtensionMethods(io._File, ['toString']);
  io._RandomAccessFileOps = class _RandomAccessFileOps extends core.Object {
    static new(pointer) {
      if (pointer == null) dart.nullFailed(I[121], 217, 36, "pointer");
      dart.throw(new core.UnsupportedError.new("RandomAccessFile"));
    }
    static ['_#new#tearOff'](pointer) {
      if (pointer == null) dart.nullFailed(I[121], 217, 36, "pointer");
      return io._RandomAccessFileOps.new(pointer);
    }
  };
  (io._RandomAccessFileOps[dart.mixinNew] = function() {
  }).prototype = io._RandomAccessFileOps.prototype;
  dart.addRtiResources(io._RandomAccessFileOps, ["io|_RandomAccessFileOps"]);
  dart.setStaticMethodSignature(io._RandomAccessFileOps, () => ['new']);
  dart.setLibraryUri(io._RandomAccessFileOps, I[119]);
  var _asyncDispatched = dart.privateName(io, "_asyncDispatched");
  var ___RandomAccessFile__resourceInfo = dart.privateName(io, "_#_RandomAccessFile#_resourceInfo");
  var ___RandomAccessFile__resourceInfo_isSet = dart.privateName(io, "_#_RandomAccessFile#_resourceInfo#isSet");
  var _resourceInfo = dart.privateName(io, "_resourceInfo");
  var _maybeConnectHandler = dart.privateName(io, "_maybeConnectHandler");
  var _maybePerformCleanup = dart.privateName(io, "_maybePerformCleanup");
  var _dispatch = dart.privateName(io, "_dispatch");
  var _checkAvailable = dart.privateName(io, "_checkAvailable");
  var _fileLockValue = dart.privateName(io, "_fileLockValue");
  io._RandomAccessFile = class _RandomAccessFile extends core.Object {
    set [_resourceInfo](_resourceInfo$35param) {
      if (_resourceInfo$35param == null) dart.nullFailed(I[128], 713, 26, "_resourceInfo#param");
      this[___RandomAccessFile__resourceInfo_isSet] = true;
      this[___RandomAccessFile__resourceInfo] = _resourceInfo$35param;
    }
    get [_resourceInfo]() {
      let t$36173;
      return dart.test(this[___RandomAccessFile__resourceInfo_isSet]) ? (t$36173 = this[___RandomAccessFile__resourceInfo], t$36173) : dart.throw(new _internal.LateError.fieldNI("_resourceInfo"));
    }
    static ['_#new#tearOff'](pointer, path) {
      if (pointer == null) dart.nullFailed(I[128], 717, 25, "pointer");
      if (path == null) dart.nullFailed(I[128], 717, 39, "path");
      return new io._RandomAccessFile.new(pointer, path);
    }
    [_maybePerformCleanup]() {
      if (dart.test(this.closed)) {
        io._FileResourceInfo.fileClosed(this[_resourceInfo]);
      }
    }
    [_maybeConnectHandler]() {
      if (true && !dart.test(io._RandomAccessFile._connectedResourceHandler)) {
        developer.registerExtension("ext.dart.io.getOpenFiles", C[166] || CT.C166);
        developer.registerExtension("ext.dart.io.getOpenFileById", C[167] || CT.C167);
        io._RandomAccessFile._connectedResourceHandler = true;
      }
    }
    close() {
      return this[_dispatch](7, [null], {markClosed: true}).then(T$.void(), dart.fn(result => {
        if (dart.equals(result, -1)) {
          dart.throw(new io.FileSystemException.new("Cannot close file", this.path));
        }
        this.closed = dart.test(this.closed) || dart.equals(result, 0);
        this[_maybePerformCleanup]();
      }, T$.ObjectNToNull()));
    }
    closeSync() {
      this[_checkAvailable]();
      let id = this[_ops].close();
      if (id === -1) {
        dart.throw(new io.FileSystemException.new("Cannot close file", this.path));
      }
      this.closed = dart.test(this.closed) || id === 0;
      this[_maybePerformCleanup]();
    }
    readByte() {
      return this[_dispatch](18, [null]).then(T$.int(), dart.fn(response => {
        io._checkForErrorResponse(response, "readByte failed", this.path);
        this[_resourceInfo].addRead(1);
        return T$.int()[_as](response);
      }, T$.ObjectNToint()));
    }
    readByteSync() {
      this[_checkAvailable]();
      let result = this[_ops].readByte();
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("readByte failed", this.path, result));
      }
      this[_resourceInfo].addRead(1);
      return T$.int()[_as](result);
    }
    read(bytes) {
      if (bytes == null) dart.nullFailed(I[128], 783, 30, "bytes");
      core.ArgumentError.checkNotNull(T$.int(), bytes, "bytes");
      return this[_dispatch](20, [null, bytes]).then(T$.Uint8List(), dart.fn(response => {
        io._checkForErrorResponse(response, "read failed", this.path);
        let result = T$.Uint8List()[_as](T$.ListOfObjectN()[_as](response)[$_get](1));
        this[_resourceInfo].addRead(result[$length]);
        return result;
      }, T$2.ObjectNToUint8List()));
    }
    readSync(bytes) {
      if (bytes == null) dart.nullFailed(I[128], 794, 26, "bytes");
      core.ArgumentError.checkNotNull(T$.int(), bytes, "bytes");
      this[_checkAvailable]();
      let result = this[_ops].read(bytes);
      if (!T$.Uint8List()[_is](result)) {
        dart.throw(new io.FileSystemException.new("readSync failed", this.path, T$2.OSError()[_as](result)));
      }
      this[_resourceInfo].addRead(result[$length]);
      return result;
    }
    readInto(buffer, start = 0, end = null) {
      if (buffer == null) dart.nullFailed(I[128], 806, 34, "buffer");
      if (start == null) dart.nullFailed(I[128], 806, 47, "start");
      core.ArgumentError.checkNotNull(T$.ListOfint(), buffer, "buffer");
      end = core.RangeError.checkValidRange(start, end, buffer[$length]);
      if (end == start) {
        return G.FutureOfint().value(0);
      }
      let length = dart.notNull(end) - dart.notNull(start);
      return this[_dispatch](21, [null, length]).then(T$.int(), dart.fn(response => {
        io._checkForErrorResponse(response, "readInto failed", this.path);
        let responseList = T$.ListOfObjectN()[_as](response);
        let read = T$.int()[_as](responseList[$_get](1));
        let data = T$.ListOfint()[_as](responseList[$_get](2));
        buffer[$setRange](start, dart.notNull(start) + dart.notNull(read), data);
        this[_resourceInfo].addRead(read);
        return read;
      }, T$.ObjectNToint()));
    }
    readIntoSync(buffer, start = 0, end = null) {
      if (buffer == null) dart.nullFailed(I[128], 825, 30, "buffer");
      if (start == null) dart.nullFailed(I[128], 825, 43, "start");
      core.ArgumentError.checkNotNull(T$.ListOfint(), buffer, "buffer");
      this[_checkAvailable]();
      end = core.RangeError.checkValidRange(start, end, buffer[$length]);
      if (end == start) {
        return 0;
      }
      let result = this[_ops].readInto(buffer, start, end);
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("readInto failed", this.path, result));
      }
      this[_resourceInfo].addRead(T$.int()[_as](result));
      return T$.int()[_as](result);
    }
    writeByte(value) {
      if (value == null) dart.nullFailed(I[128], 841, 42, "value");
      core.ArgumentError.checkNotNull(T$.int(), value, "value");
      return this[_dispatch](19, [null, value]).then(T$2.RandomAccessFile(), dart.fn(response => {
        io._checkForErrorResponse(response, "writeByte failed", this.path);
        this[_resourceInfo].addWrite(1);
        return this;
      }, T$2.ObjectNTo_RandomAccessFile()));
    }
    writeByteSync(value) {
      if (value == null) dart.nullFailed(I[128], 851, 25, "value");
      this[_checkAvailable]();
      core.ArgumentError.checkNotNull(T$.int(), value, "value");
      let result = this[_ops].writeByte(value);
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("writeByte failed", this.path, result));
      }
      this[_resourceInfo].addWrite(1);
      return T$.int()[_as](result);
    }
    writeFrom(buffer, start = 0, end = null) {
      if (buffer == null) dart.nullFailed(I[128], 863, 48, "buffer");
      if (start == null) dart.nullFailed(I[128], 864, 12, "start");
      core.ArgumentError.checkNotNull(T$.ListOfint(), buffer, "buffer");
      core.ArgumentError.checkNotNull(T$.int(), start, "start");
      end = core.RangeError.checkValidRange(start, end, buffer[$length]);
      if (end == start) {
        return G.FutureOfRandomAccessFile().value(this);
      }
      let result = null;
      try {
        result = io._ensureFastAndSerializableByteData(buffer, start, end);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          return G.FutureOfRandomAccessFile().error(e);
        } else
          throw t$36$35e;
      }
      let request = core.List.filled(4, null);
      request[$_set](0, null);
      request[$_set](1, result.buffer);
      request[$_set](2, result.start);
      request[$_set](3, dart.notNull(end) - (dart.notNull(start) - dart.notNull(result.start)));
      return this[_dispatch](22, request).then(T$2.RandomAccessFile(), dart.fn(response => {
        io._checkForErrorResponse(response, "writeFrom failed", this.path);
        this[_resourceInfo].addWrite(dart.nullCheck(end) - (dart.notNull(start) - dart.notNull(result.start)));
        return this;
      }, T$2.ObjectNTo_RandomAccessFile()));
    }
    writeFromSync(buffer, start = 0, end = null) {
      if (buffer == null) dart.nullFailed(I[128], 891, 32, "buffer");
      if (start == null) dart.nullFailed(I[128], 891, 45, "start");
      this[_checkAvailable]();
      core.ArgumentError.checkNotNull(T$.ListOfint(), buffer, "buffer");
      core.ArgumentError.checkNotNull(T$.int(), start, "start");
      end = core.RangeError.checkValidRange(start, end, buffer[$length]);
      if (end == start) {
        return;
      }
      let bufferAndStart = io._ensureFastAndSerializableByteData(buffer, start, end);
      let result = this[_ops].writeFrom(bufferAndStart.buffer, bufferAndStart.start, dart.notNull(end) - (dart.notNull(start) - dart.notNull(bufferAndStart.start)));
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("writeFrom failed", this.path, result));
      }
      this[_resourceInfo].addWrite(dart.notNull(end) - (dart.notNull(start) - dart.notNull(bufferAndStart.start)));
    }
    writeString(string, opts) {
      if (string == null) dart.nullFailed(I[128], 910, 47, "string");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[128], 911, 17, "encoding");
      core.ArgumentError.checkNotNull(T$2.Encoding(), encoding, "encoding");
      let data = encoding.encode(string);
      return this.writeFrom(data, 0, data[$length]);
    }
    writeStringSync(string, opts) {
      if (string == null) dart.nullFailed(I[128], 918, 31, "string");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[128], 918, 49, "encoding");
      core.ArgumentError.checkNotNull(T$2.Encoding(), encoding, "encoding");
      let data = encoding.encode(string);
      this.writeFromSync(data, 0, data[$length]);
    }
    position() {
      return this[_dispatch](8, [null]).then(T$.int(), dart.fn(response => {
        io._checkForErrorResponse(response, "position failed", this.path);
        return T$.int()[_as](response);
      }, T$.ObjectNToint()));
    }
    positionSync() {
      this[_checkAvailable]();
      let result = this[_ops].position();
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("position failed", this.path, result));
      }
      return T$.int()[_as](result);
    }
    setPosition(position) {
      if (position == null) dart.nullFailed(I[128], 941, 44, "position");
      return this[_dispatch](9, [null, position]).then(T$2.RandomAccessFile(), dart.fn(response => {
        io._checkForErrorResponse(response, "setPosition failed", this.path);
        return this;
      }, T$2.ObjectNTo_RandomAccessFile()));
    }
    setPositionSync(position) {
      if (position == null) dart.nullFailed(I[128], 949, 28, "position");
      this[_checkAvailable]();
      let result = this[_ops].setPosition(position);
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("setPosition failed", this.path, result));
      }
    }
    truncate(length) {
      if (length == null) dart.nullFailed(I[128], 957, 41, "length");
      return this[_dispatch](10, [null, length]).then(T$2.RandomAccessFile(), dart.fn(response => {
        io._checkForErrorResponse(response, "truncate failed", this.path);
        return this;
      }, T$2.ObjectNTo_RandomAccessFile()));
    }
    truncateSync(length) {
      if (length == null) dart.nullFailed(I[128], 964, 25, "length");
      this[_checkAvailable]();
      let result = this[_ops].truncate(length);
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("truncate failed", this.path, result));
      }
    }
    length() {
      return this[_dispatch](11, [null]).then(T$.int(), dart.fn(response => {
        io._checkForErrorResponse(response, "length failed", this.path);
        return T$.int()[_as](response);
      }, T$.ObjectNToint()));
    }
    lengthSync() {
      this[_checkAvailable]();
      let result = this[_ops].length();
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("length failed", this.path, result));
      }
      return T$.int()[_as](result);
    }
    flush() {
      return this[_dispatch](17, [null]).then(T$2.RandomAccessFile(), dart.fn(response => {
        io._checkForErrorResponse(response, "flush failed", this.path);
        return this;
      }, T$2.ObjectNTo_RandomAccessFile()));
    }
    flushSync() {
      this[_checkAvailable]();
      let result = this[_ops].flush();
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("flush failed", this.path, result));
      }
    }
    [_fileLockValue](fl) {
      if (fl == null) dart.nullFailed(I[128], 1009, 31, "fl");
      return fl[_type];
    }
    lock(mode = C[162] || CT.C162, start = 0, end = -1) {
      if (mode == null) dart.nullFailed(I[128], 1012, 17, "mode");
      if (start == null) dart.nullFailed(I[128], 1012, 48, "start");
      if (end == null) dart.nullFailed(I[128], 1012, 63, "end");
      core.ArgumentError.checkNotNull(T$2.FileLock(), mode, "mode");
      core.ArgumentError.checkNotNull(T$.int(), start, "start");
      core.ArgumentError.checkNotNull(T$.int(), end, "end");
      if (dart.notNull(start) < 0 || dart.notNull(end) < -1 || end !== -1 && dart.notNull(start) >= dart.notNull(end)) {
        dart.throw(new core.ArgumentError.new());
      }
      let lock = this[_fileLockValue](mode);
      return this[_dispatch](30, [null, lock, start, end]).then(T$2.RandomAccessFile(), dart.fn(response => {
        io._checkForErrorResponse(response, "lock failed", this.path);
        return this;
      }, T$2.ObjectNTo_RandomAccessFile()));
    }
    unlock(start = 0, end = -1) {
      if (start == null) dart.nullFailed(I[128], 1028, 40, "start");
      if (end == null) dart.nullFailed(I[128], 1028, 55, "end");
      core.ArgumentError.checkNotNull(T$.int(), start, "start");
      core.ArgumentError.checkNotNull(T$.int(), end, "end");
      if (start == end) {
        dart.throw(new core.ArgumentError.new());
      }
      return this[_dispatch](30, [null, 0, start, end]).then(T$2.RandomAccessFile(), dart.fn(response => {
        io._checkForErrorResponse(response, "unlock failed", this.path);
        return this;
      }, T$2.ObjectNTo_RandomAccessFile()));
    }
    lockSync(mode = C[162] || CT.C162, start = 0, end = -1) {
      if (mode == null) dart.nullFailed(I[128], 1043, 17, "mode");
      if (start == null) dart.nullFailed(I[128], 1043, 48, "start");
      if (end == null) dart.nullFailed(I[128], 1043, 63, "end");
      this[_checkAvailable]();
      core.ArgumentError.checkNotNull(T$2.FileLock(), mode, "mode");
      core.ArgumentError.checkNotNull(T$.int(), start, "start");
      core.ArgumentError.checkNotNull(T$.int(), end, "end");
      if (dart.notNull(start) < 0 || dart.notNull(end) < -1 || end !== -1 && dart.notNull(start) >= dart.notNull(end)) {
        dart.throw(new core.ArgumentError.new());
      }
      let lock = this[_fileLockValue](mode);
      let result = this[_ops].lock(lock, start, end);
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("lock failed", this.path, result));
      }
    }
    unlockSync(start = 0, end = -1) {
      if (start == null) dart.nullFailed(I[128], 1059, 24, "start");
      if (end == null) dart.nullFailed(I[128], 1059, 39, "end");
      this[_checkAvailable]();
      core.ArgumentError.checkNotNull(T$.int(), start, "start");
      core.ArgumentError.checkNotNull(T$.int(), end, "end");
      if (start == end) {
        dart.throw(new core.ArgumentError.new());
      }
      let result = this[_ops].lock(0, start, end);
      if (T$2.OSError()[_is](result)) {
        dart.throw(new io.FileSystemException.new("unlock failed", this.path, result));
      }
    }
    get fd() {
      return this[_ops].fd;
    }
    [_pointer]() {
      return this[_ops].getPointer();
    }
    [_dispatch](request, data, opts) {
      if (request == null) dart.nullFailed(I[128], 1084, 33, "request");
      if (data == null) dart.nullFailed(I[128], 1084, 47, "data");
      let markClosed = opts && 'markClosed' in opts ? opts.markClosed : false;
      if (markClosed == null) dart.nullFailed(I[128], 1084, 59, "markClosed");
      if (dart.test(this.closed)) {
        return G.FutureOfObjectN().error(new io.FileSystemException.new("File closed", this.path));
      }
      if (dart.test(this[_asyncDispatched])) {
        let msg = "An async operation is currently pending";
        return G.FutureOfObjectN().error(new io.FileSystemException.new(msg, this.path));
      }
      if (dart.test(markClosed)) {
        this.closed = true;
      }
      this[_asyncDispatched] = true;
      data[$_set](0, this[_pointer]());
      return io._IOService._dispatch(request, data).whenComplete(dart.fn(() => {
        this[_asyncDispatched] = false;
      }, T$0.VoidToNull()));
    }
    [_checkAvailable]() {
      if (dart.test(this[_asyncDispatched])) {
        dart.throw(new io.FileSystemException.new("An async operation is currently pending", this.path));
      }
      if (dart.test(this.closed)) {
        dart.throw(new io.FileSystemException.new("File closed", this.path));
      }
    }
  };
  (io._RandomAccessFile.new = function(pointer, path) {
    if (pointer == null) dart.nullFailed(I[128], 717, 25, "pointer");
    if (path == null) dart.nullFailed(I[128], 717, 39, "path");
    this[_asyncDispatched] = false;
    this[___RandomAccessFile__resourceInfo] = null;
    this[___RandomAccessFile__resourceInfo_isSet] = false;
    this.closed = false;
    this.path = path;
    this[_ops] = io._RandomAccessFileOps.new(pointer);
    this[_resourceInfo] = new io._FileResourceInfo.new(this);
    this[_maybeConnectHandler]();
  }).prototype = io._RandomAccessFile.prototype;
  dart.addRtiResources(io._RandomAccessFile, ["io|_RandomAccessFile", "io|RandomAccessFile"]);
  dart.setMethodSignature(io._RandomAccessFile, () => dart.global.Object.setPrototypeOf({
    [_maybePerformCleanup]: T$.VoidTovoid(),
    [_maybeConnectHandler]: T$.VoidTodynamic(),
    close: T$.VoidToFutureOfvoid(),
    closeSync: T$.VoidTovoid(),
    readByte: T$2.VoidToFutureOfint(),
    readByteSync: T$.VoidToint(),
    read: T$2.intToFutureOfUint8List(),
    readSync: T$0.intToUint8List(),
    readInto: T$2.ListOfintAndintAndintNToFutureOfint(),
    readIntoSync: T$2.ListOfintAndintAndintNToint(),
    writeByte: T$2.intToFutureOfRandomAccessFile(),
    writeByteSync: T$.intToint(),
    writeFrom: T$2.ListOfintAndintAndintNToFutureOfRandomAccessFile(),
    writeFromSync: T$2.ListOfintAndintAndintNTovoid(),
    writeString: T$2.String__ToFutureOfRandomAccessFile(),
    writeStringSync: T$2.String__Tovoid$3(),
    position: T$2.VoidToFutureOfint(),
    positionSync: T$.VoidToint(),
    setPosition: T$2.intToFutureOfRandomAccessFile(),
    setPositionSync: T$.intTovoid(),
    truncate: T$2.intToFutureOfRandomAccessFile(),
    truncateSync: T$.intTovoid(),
    length: T$2.VoidToFutureOfint(),
    lengthSync: T$.VoidToint(),
    flush: T$2.VoidToFutureOfRandomAccessFile(),
    flushSync: T$.VoidTovoid(),
    [_fileLockValue]: T$2.FileLockToint(),
    lock: T$2.FileLockAndintAndintToFutureOfRandomAccessFile(),
    unlock: T$2.intAndintToFutureOfRandomAccessFile(),
    lockSync: T$2.FileLockAndintAndintTovoid(),
    unlockSync: T$2.intAndintTovoid$1(),
    [_pointer]: T$.VoidToint(),
    [_dispatch]: T$2.intAndList__ToFutureOfObjectN(),
    [_checkAvailable]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._RandomAccessFile))));
  dart.setGetterSignature(io._RandomAccessFile, () => dart.global.Object.setPrototypeOf({
    [_resourceInfo]: T$2._FileResourceInfo(),
    fd: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._RandomAccessFile))));
  dart.setSetterSignature(io._RandomAccessFile, () => dart.global.Object.setPrototypeOf({[_resourceInfo]: T$2._FileResourceInfo()}, dart.getSetters(dart.global.Object.getPrototypeOf(io._RandomAccessFile))));
  dart.setLibraryUri(io._RandomAccessFile, I[119]);
  dart.setFieldSignature(io._RandomAccessFile, () => dart.global.Object.setPrototypeOf({
    path: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_asyncDispatched]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___RandomAccessFile__resourceInfo]: {type: T$2._FileResourceInfoN(), isConst: false, isFinal: false, libraryUri: I[119]},
    [___RandomAccessFile__resourceInfo_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_ops]: {type: T$2._RandomAccessFileOps(), isConst: false, isFinal: false, libraryUri: I[119]},
    closed: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._RandomAccessFile))));
  dart.setStaticFieldSignature(io._RandomAccessFile, () => ['_connectedResourceHandler', 'lockUnlock']);
  dart.defineLazy(io._RandomAccessFile, {
    /*io._RandomAccessFile._connectedResourceHandler*/get _connectedResourceHandler() {
      return false;
    },
    set _connectedResourceHandler(value) {
      if (value == null) dart.nullFailed(I[128], 707, 15, "_connectedResourceHandler");
    },
    /*io._RandomAccessFile.lockUnlock*/get lockUnlock() {
      return 0;
    }
  }, false);
  io._ReadPipe = class _ReadPipe extends io._FileStream {
    static ['_#new#tearOff'](file) {
      if (file == null) dart.nullFailed(I[128], 1116, 30, "file");
      return new io._ReadPipe.new(file);
    }
  };
  (io._ReadPipe.new = function(file) {
    if (file == null) dart.nullFailed(I[128], 1116, 30, "file");
    this.$ti = this.$ti || T$2._ReadPipe();
    dart.global.Object.getPrototypeOf(io._ReadPipe).forRandomAccessFile.call(this, file);
    ;
  }).prototype = io._ReadPipe.prototype;
  dart.addRtiResources(io._ReadPipe, ["io|_ReadPipe", "io|ReadPipe", "async|Stream"]);
  dart.setLibraryUri(io._ReadPipe, I[119]);
  var _encodingMutable = dart.privateName(io, "_encodingMutable");
  var _encoding$ = dart.privateName(io, "_encoding");
  var _doneCompleter = dart.privateName(io, "_doneCompleter");
  var _controllerInstance = dart.privateName(io, "_controllerInstance");
  var _controllerCompleter = dart.privateName(io, "_controllerCompleter");
  var _isClosed$ = dart.privateName(io, "_isClosed");
  var _isBound = dart.privateName(io, "_isBound");
  var _hasError$ = dart.privateName(io, "_hasError");
  var _target$0 = dart.privateName(io, "_target");
  var _closeTarget = dart.privateName(io, "_closeTarget");
  var _completeDoneValue = dart.privateName(io, "_completeDoneValue");
  var _completeDoneError = dart.privateName(io, "_completeDoneError");
  io._StreamSinkImpl$ = dart.generic(T => {
    var __t$_StreamSinkImplOfT = () => (__t$_StreamSinkImplOfT = dart.constFn(T[_eval]("io|_StreamSinkImpl<0>")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$StreamControllerOfT = () => (__t$StreamControllerOfT = dart.constFn(T[_eval]("async|StreamController<0>")))();
    var __t$StreamConsumerOfT = () => (__t$StreamConsumerOfT = dart.constFn(T[_eval]("async|StreamConsumer<0>")))();
    var __t$StreamControllerNOfT = () => (__t$StreamControllerNOfT = dart.constFn(T[_eval]("async|StreamController<0>?")))();
    var __t$StreamControllerOfT$ = () => (__t$StreamControllerOfT$ = dart.constFn(async.StreamController$(T)))();
    class _StreamSinkImpl extends core.Object {
      static ['_#new#tearOff'](T, _target) {
        if (_target == null) dart.nullFailed(I[129], 148, 24, "_target");
        return new (io._StreamSinkImpl$(T)).new(_target);
      }
      add(data) {
        T[_as](data);
        if (dart.test(this[_isClosed$])) {
          dart.throw(new core.StateError.new("StreamSink is closed"));
        }
        this[_controller].add(data);
      }
      addError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[129], 157, 17, "error");
        if (dart.test(this[_isClosed$])) {
          dart.throw(new core.StateError.new("StreamSink is closed"));
        }
        this[_controller].addError(error, stackTrace);
      }
      addStream(stream) {
        let t$36174;
        __t$StreamOfT()[_as](stream);
        if (stream == null) dart.nullFailed(I[129], 164, 30, "stream");
        if (dart.test(this[_isBound])) {
          dart.throw(new core.StateError.new("StreamSink is already bound to a stream"));
        }
        if (dart.test(this[_hasError$])) return this.done;
        this[_isBound] = true;
        let future = this[_controllerCompleter] == null ? this[_target$0].addStream(stream) : dart.nullCheck(this[_controllerCompleter]).future.then(T$.dynamic(), dart.fn(_ => this[_target$0].addStream(stream), T$.dynamicToFuture()));
        t$36174 = this[_controllerInstance];
        t$36174 == null ? null : t$36174.close();
        return future.whenComplete(dart.fn(() => {
          this[_isBound] = false;
        }, T$0.VoidToNull()));
      }
      flush() {
        if (dart.test(this[_isBound])) {
          dart.throw(new core.StateError.new("StreamSink is bound to a stream"));
        }
        if (this[_controllerInstance] == null) return async.Future.value(this);
        this[_isBound] = true;
        let future = dart.nullCheck(this[_controllerCompleter]).future;
        dart.nullCheck(this[_controllerInstance]).close();
        return future.whenComplete(dart.fn(() => {
          this[_isBound] = false;
        }, T$0.VoidToNull()));
      }
      close() {
        if (dart.test(this[_isBound])) {
          dart.throw(new core.StateError.new("StreamSink is bound to a stream"));
        }
        if (!dart.test(this[_isClosed$])) {
          this[_isClosed$] = true;
          if (this[_controllerInstance] != null) {
            dart.nullCheck(this[_controllerInstance]).close();
          } else {
            this[_closeTarget]();
          }
        }
        return this.done;
      }
      [_closeTarget]() {
        this[_target$0].close().then(T$.void(), dart.bind(this, _completeDoneValue), {onError: dart.bind(this, _completeDoneError)});
      }
      get done() {
        return this[_doneCompleter].future;
      }
      [_completeDoneValue](value) {
        if (!dart.test(this[_doneCompleter].isCompleted)) {
          this[_doneCompleter].complete(value);
        }
      }
      [_completeDoneError](error, stackTrace) {
        if (!dart.test(this[_doneCompleter].isCompleted)) {
          this[_hasError$] = true;
          this[_doneCompleter].completeError(T$.Object()[_as](error), stackTrace);
        }
      }
      get [_controller]() {
        if (dart.test(this[_isBound])) {
          dart.throw(new core.StateError.new("StreamSink is bound to a stream"));
        }
        if (dart.test(this[_isClosed$])) {
          dart.throw(new core.StateError.new("StreamSink is closed"));
        }
        if (this[_controllerInstance] == null) {
          this[_controllerInstance] = __t$StreamControllerOfT$().new({sync: true});
          this[_controllerCompleter] = async.Completer.new();
          this[_target$0].addStream(this[_controller].stream).then(T$.Null(), dart.fn(_ => {
            if (dart.test(this[_isBound])) {
              dart.nullCheck(this[_controllerCompleter]).complete(this);
              this[_controllerCompleter] = null;
              this[_controllerInstance] = null;
            } else {
              this[_closeTarget]();
            }
          }, T$0.dynamicToNull()), {onError: dart.fn((error, stackTrace) => {
              if (dart.test(this[_isBound])) {
                dart.nullCheck(this[_controllerCompleter]).completeError(T$.Object()[_as](error), T$.StackTraceN()[_as](stackTrace));
                this[_controllerCompleter] = null;
                this[_controllerInstance] = null;
              } else {
                this[_completeDoneError](error, T$.StackTraceN()[_as](stackTrace));
              }
            }, T$.dynamicAnddynamicToNull())});
        }
        return dart.nullCheck(this[_controllerInstance]);
      }
    }
    (_StreamSinkImpl.new = function(_target) {
      if (_target == null) dart.nullFailed(I[129], 148, 24, "_target");
      this[_doneCompleter] = async.Completer.new();
      this[_controllerInstance] = null;
      this[_controllerCompleter] = null;
      this[_isClosed$] = false;
      this[_isBound] = false;
      this[_hasError$] = false;
      this[_target$0] = _target;
      this.$ti = this.$ti || __t$_StreamSinkImplOfT();
      ;
    }).prototype = _StreamSinkImpl.prototype;
    dart.addRtiResources(_StreamSinkImpl, ["io|_StreamSinkImpl", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_StreamSinkImpl, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      addError: T$1.ObjectAndStackTraceNTovoid(),
      addStream: T$.ObjectNToFuture(),
      flush: T$.VoidToFuture(),
      close: T$.VoidToFuture(),
      [_closeTarget]: T$.VoidTovoid(),
      [_completeDoneValue]: T$.dynamicTovoid(),
      [_completeDoneError]: T$2.dynamicAndStackTraceNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamSinkImpl))));
    dart.setGetterSignature(_StreamSinkImpl, () => dart.global.Object.setPrototypeOf({
      done: T$0.Future(),
      [_controller]: __t$StreamControllerOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_StreamSinkImpl))));
    dart.setLibraryUri(_StreamSinkImpl, I[119]);
    dart.setFieldSignature(_StreamSinkImpl, () => dart.global.Object.setPrototypeOf({
      [_target$0]: {type: __t$StreamConsumerOfT(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_doneCompleter]: {type: T$2.Completer(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_controllerInstance]: {type: __t$StreamControllerNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_controllerCompleter]: {type: T$0.CompleterN(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_isClosed$]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_isBound]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_hasError$]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_StreamSinkImpl))));
    return _StreamSinkImpl;
  });
  io._StreamSinkImpl = io._StreamSinkImpl$();
  io._IOSinkImpl = class _IOSinkImpl extends G._StreamSinkImplOfListOfint() {
    static ['_#new#tearOff'](target, _encoding) {
      if (target == null) dart.nullFailed(I[129], 273, 41, "target");
      if (_encoding == null) dart.nullFailed(I[129], 273, 54, "_encoding");
      return new io._IOSinkImpl.new(target, _encoding);
    }
    get encoding() {
      return this[_encoding$];
    }
    set encoding(value) {
      if (value == null) dart.nullFailed(I[129], 277, 30, "value");
      if (!dart.test(this[_encodingMutable])) {
        dart.throw(new core.StateError.new("IOSink encoding is not mutable"));
      }
      this[_encoding$] = value;
    }
    write(obj) {
      let string = dart.str(obj);
      if (string[$isEmpty]) return;
      this.add(this[_encoding$].encode(string));
    }
    writeAll(objects, separator = "") {
      if (objects == null) dart.nullFailed(I[129], 290, 26, "objects");
      if (separator == null) dart.nullFailed(I[129], 290, 43, "separator");
      let iterator = objects[$iterator];
      if (!dart.test(iterator.moveNext())) return;
      if (separator[$isEmpty]) {
        do {
          this.write(iterator.current);
        } while (dart.test(iterator.moveNext()));
      } else {
        this.write(iterator.current);
        while (dart.test(iterator.moveNext())) {
          this.write(separator);
          this.write(iterator.current);
        }
      }
    }
    writeln(object = "") {
      this.write(object);
      this.write("\n");
    }
    writeCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[129], 311, 26, "charCode");
      this.write(core.String.fromCharCode(charCode));
    }
  };
  (io._IOSinkImpl.new = function(target, _encoding) {
    if (target == null) dart.nullFailed(I[129], 273, 41, "target");
    if (_encoding == null) dart.nullFailed(I[129], 273, 54, "_encoding");
    this[_encodingMutable] = true;
    this[_encoding$] = _encoding;
    this.$ti = this.$ti || T$2._IOSinkImpl();
    dart.global.Object.getPrototypeOf(io._IOSinkImpl).new.call(this, target);
    ;
  }).prototype = io._IOSinkImpl.prototype;
  dart.addRtiResources(io._IOSinkImpl, ["io|_IOSinkImpl", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setMethodSignature(io._IOSinkImpl, () => dart.global.Object.setPrototypeOf({
    write: T$.ObjectNTovoid(),
    writeAll: T$2.IterableAndStringTovoid(),
    writeln: T$0.ObjectNTovoid$1(),
    writeCharCode: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._IOSinkImpl))));
  dart.setGetterSignature(io._IOSinkImpl, () => dart.global.Object.setPrototypeOf({encoding: T$2.Encoding()}, dart.getGetters(dart.global.Object.getPrototypeOf(io._IOSinkImpl))));
  dart.setSetterSignature(io._IOSinkImpl, () => dart.global.Object.setPrototypeOf({encoding: T$2.Encoding()}, dart.getSetters(dart.global.Object.getPrototypeOf(io._IOSinkImpl))));
  dart.setLibraryUri(io._IOSinkImpl, I[119]);
  dart.setFieldSignature(io._IOSinkImpl, () => dart.global.Object.setPrototypeOf({
    [_encoding$]: {type: T$2.Encoding(), isConst: false, isFinal: false, libraryUri: I[41]},
    [_encodingMutable]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._IOSinkImpl))));
  io._WritePipe = class _WritePipe extends io._IOSinkImpl {
    static ['_#new#tearOff'](file) {
      return new io._WritePipe.new(file);
    }
  };
  (io._WritePipe.new = function(file) {
    this[_file] = T$2.RandomAccessFile()[_as](file);
    this.$ti = this.$ti || T$2._WritePipe();
    dart.global.Object.getPrototypeOf(io._WritePipe).new.call(this, new io._FileStreamConsumer.fromRandomAccessFile(T$2.RandomAccessFile()[_as](file)), convert.utf8);
    ;
  }).prototype = io._WritePipe.prototype;
  dart.addRtiResources(io._WritePipe, ["io|_WritePipe", "io|WritePipe", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setLibraryUri(io._WritePipe, I[119]);
  dart.setFieldSignature(io._WritePipe, () => dart.global.Object.setPrototypeOf({[_file]: {type: T$2.RandomAccessFile(), isConst: false, isFinal: false, libraryUri: I[119]}}, dart.getFields(dart.global.Object.getPrototypeOf(io._WritePipe))));
  var _readPipe$ = dart.privateName(io, "_readPipe");
  var _writePipe$ = dart.privateName(io, "_writePipe");
  io._Pipe = class _Pipe extends core.Object {
    get read() {
      return this[_readPipe$];
    }
    get write() {
      return this[_writePipe$];
    }
    static ['_#new#tearOff'](_readPipe, _writePipe) {
      if (_readPipe == null) dart.nullFailed(I[128], 1133, 14, "_readPipe");
      if (_writePipe == null) dart.nullFailed(I[128], 1133, 30, "_writePipe");
      return new io._Pipe.new(_readPipe, _writePipe);
    }
    static create() {
      let completer = G.CompleterOf_Pipe().sync();
      io._File._dispatchWithNamespace(31, [null]).then(T$.Null(), dart.fn(response => {
        let filePointers = T$.List()[_as](response)[$cast](T$.int());
        completer.complete(new io._Pipe.new(new io._ReadPipe.new(new io._RandomAccessFile.new(filePointers[$_get](0), "")), new io._WritePipe.new(new io._RandomAccessFile.new(filePointers[$_get](1), ""))));
      }, T$.ObjectNToNull()));
      return completer.future;
    }
    static createSync() {
      let filePointers = io._File._createPipe(io._Namespace._namespace);
      return new io._Pipe.new(new io._ReadPipe.new(new io._RandomAccessFile.new(T$.int()[_as](filePointers[$_get](0)), "")), new io._WritePipe.new(new io._RandomAccessFile.new(T$.int()[_as](filePointers[$_get](1)), "")));
    }
    static ['_#createSync#tearOff']() {
      return io._Pipe.createSync();
    }
  };
  (io._Pipe.new = function(_readPipe, _writePipe) {
    if (_readPipe == null) dart.nullFailed(I[128], 1133, 14, "_readPipe");
    if (_writePipe == null) dart.nullFailed(I[128], 1133, 30, "_writePipe");
    this[_readPipe$] = _readPipe;
    this[_writePipe$] = _writePipe;
    ;
  }).prototype = io._Pipe.prototype;
  dart.addRtiResources(io._Pipe, ["io|_Pipe", "io|Pipe"]);
  dart.setStaticMethodSignature(io._Pipe, () => ['create', 'createSync']);
  dart.setGetterSignature(io._Pipe, () => dart.global.Object.setPrototypeOf({
    read: T$2.ReadPipe(),
    write: T$2.WritePipe()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._Pipe))));
  dart.setLibraryUri(io._Pipe, I[119]);
  dart.setFieldSignature(io._Pipe, () => dart.global.Object.setPrototypeOf({
    [_readPipe$]: {type: T$2.ReadPipe(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_writePipe$]: {type: T$2.WritePipe(), isConst: false, isFinal: true, libraryUri: I[119]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._Pipe))));
  var _type$1 = dart.privateName(io, "FileSystemEntityType._type");
  io.FileSystemEntityType = class FileSystemEntityType extends core.Object {
    get [_type]() {
      return this[_type$1];
    }
    set [_type](value) {
      super[_type] = value;
    }
    static ['_#_internal#tearOff'](_type) {
      if (_type == null) dart.nullFailed(I[125], 37, 45, "_type");
      return new io.FileSystemEntityType._internal(_type);
    }
    static _lookup(type) {
      if (type == null) dart.nullFailed(I[125], 39, 43, "type");
      return io.FileSystemEntityType._typeList[$_get](type);
    }
    toString() {
      return (C[168] || CT.C168)[$_get](this[_type]);
    }
  };
  (io.FileSystemEntityType._internal = function(_type) {
    if (_type == null) dart.nullFailed(I[125], 37, 45, "_type");
    this[_type$1] = _type;
    ;
  }).prototype = io.FileSystemEntityType.prototype;
  dart.addRtiResources(io.FileSystemEntityType, ["io|FileSystemEntityType"]);
  dart.setStaticMethodSignature(io.FileSystemEntityType, () => ['_lookup']);
  dart.setLibraryUri(io.FileSystemEntityType, I[119]);
  dart.setFieldSignature(io.FileSystemEntityType, () => dart.global.Object.setPrototypeOf({[_type]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.FileSystemEntityType))));
  dart.setStaticFieldSignature(io.FileSystemEntityType, () => ['file', 'directory', 'link', 'unixDomainSock', 'pipe', 'notFound', 'NOT_FOUND', '_typeList']);
  dart.defineExtensionMethods(io.FileSystemEntityType, ['toString']);
  dart.defineLazy(io.FileSystemEntityType, {
    /*io.FileSystemEntityType.file*/get file() {
      return C[169] || CT.C169;
    },
    /*io.FileSystemEntityType.directory*/get directory() {
      return C[170] || CT.C170;
    },
    /*io.FileSystemEntityType.link*/get link() {
      return C[171] || CT.C171;
    },
    /*io.FileSystemEntityType.unixDomainSock*/get unixDomainSock() {
      return C[172] || CT.C172;
    },
    /*io.FileSystemEntityType.pipe*/get pipe() {
      return C[173] || CT.C173;
    },
    /*io.FileSystemEntityType.notFound*/get notFound() {
      return C[174] || CT.C174;
    },
    /*io.FileSystemEntityType.NOT_FOUND*/get NOT_FOUND() {
      return C[174] || CT.C174;
    },
    /*io.FileSystemEntityType._typeList*/get _typeList() {
      return C[175] || CT.C175;
    }
  }, false);
  var changed$ = dart.privateName(io, "FileStat.changed");
  var modified$ = dart.privateName(io, "FileStat.modified");
  var accessed$ = dart.privateName(io, "FileStat.accessed");
  var type$ = dart.privateName(io, "FileStat.type");
  var mode$0 = dart.privateName(io, "FileStat.mode");
  var size$ = dart.privateName(io, "FileStat.size");
  io.FileStat = class FileStat extends core.Object {
    get changed() {
      return this[changed$];
    }
    set changed(value) {
      super.changed = value;
    }
    get modified() {
      return this[modified$];
    }
    set modified(value) {
      super.modified = value;
    }
    get accessed() {
      return this[accessed$];
    }
    set accessed(value) {
      super.accessed = value;
    }
    get type() {
      return this[type$];
    }
    set type(value) {
      super.type = value;
    }
    get mode() {
      return this[mode$0];
    }
    set mode(value) {
      super.mode = value;
    }
    get size() {
      return this[size$];
    }
    set size(value) {
      super.size = value;
    }
    static ['_#_internal#tearOff'](changed, modified, accessed, type, mode, size) {
      if (changed == null) dart.nullFailed(I[125], 96, 27, "changed");
      if (modified == null) dart.nullFailed(I[125], 96, 41, "modified");
      if (accessed == null) dart.nullFailed(I[125], 96, 56, "accessed");
      if (type == null) dart.nullFailed(I[125], 96, 71, "type");
      if (mode == null) dart.nullFailed(I[125], 97, 12, "mode");
      if (size == null) dart.nullFailed(I[125], 97, 23, "size");
      return new io.FileStat._internal(changed, modified, accessed, type, mode, size);
    }
    static _statSync(namespace, path) {
      if (namespace == null) dart.nullFailed(I[121], 84, 31, "namespace");
      if (path == null) dart.nullFailed(I[121], 84, 49, "path");
      dart.throw(new core.UnsupportedError.new("FileStat.stat"));
    }
    static statSync(path) {
      if (path == null) dart.nullFailed(I[125], 109, 35, "path");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io.FileStat._statSyncInternal(path);
      }
      return overrides.statSync(path);
    }
    static _statSyncInternal(path) {
      if (path == null) dart.nullFailed(I[125], 117, 44, "path");
      if (dart.test(io.Platform.isWindows)) {
        path = io.FileSystemEntity._trimTrailingPathSeparators(path);
      }
      let data = io.FileStat._statSync(io._Namespace._namespace, path);
      if (!T$0.Int64List()[_is](data)) return io.FileStat._notFound;
      return new io.FileStat._internal(new core.DateTime.fromMillisecondsSinceEpoch(data[$_get](1)), new core.DateTime.fromMillisecondsSinceEpoch(data[$_get](2)), new core.DateTime.fromMillisecondsSinceEpoch(data[$_get](3)), io.FileSystemEntityType._lookup(data[$_get](0)), data[$_get](4), data[$_get](5));
    }
    static stat(path) {
      if (path == null) dart.nullFailed(I[125], 140, 39, "path");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io.FileStat._stat(path);
      }
      return overrides.stat(path);
    }
    static _stat(path) {
      if (path == null) dart.nullFailed(I[125], 148, 40, "path");
      if (dart.test(io.Platform.isWindows)) {
        path = io.FileSystemEntity._trimTrailingPathSeparators(path);
      }
      return io._File._dispatchWithNamespace(29, [null, path]).then(T$2.FileStat(), dart.fn(response => {
        if (T$.ListOfObjectN()[_is](response) && !dart.equals(response[$_get](0), 0)) {
          return io.FileStat._notFound;
        }
        let data = T$.ListOfObjectN()[_as](T$.List()[_as](response)[$_get](1));
        return new io.FileStat._internal(new core.DateTime.fromMillisecondsSinceEpoch(T$.int()[_as](data[$_get](1))), new core.DateTime.fromMillisecondsSinceEpoch(T$.int()[_as](data[$_get](2))), new core.DateTime.fromMillisecondsSinceEpoch(T$.int()[_as](data[$_get](3))), io.FileSystemEntityType._lookup(T$.int()[_as](data[$_get](0))), T$.int()[_as](data[$_get](4)), T$.int()[_as](data[$_get](5)));
      }, T$2.ObjectNToFileStat()));
    }
    toString() {
      return "FileStat: type " + dart.str(this.type) + "\n          changed " + dart.str(this.changed) + "\n          modified " + dart.str(this.modified) + "\n          accessed " + dart.str(this.accessed) + "\n          mode " + dart.str(this.modeString()) + "\n          size " + dart.str(this.size);
    }
    modeString() {
      let t$36174;
      let permissions = dart.notNull(this.mode) & 4095;
      let codes = C[176] || CT.C176;
      let result = [];
      if ((permissions & 2048) !== 0) result[$add]("(suid) ");
      if ((permissions & 1024) !== 0) result[$add]("(guid) ");
      if ((permissions & 512) !== 0) result[$add]("(sticky) ");
      t$36174 = result;
      (() => {
        t$36174[$add](codes[$_get](permissions >> 6 & 7));
        t$36174[$add](codes[$_get](permissions >> 3 & 7));
        t$36174[$add](codes[$_get](permissions & 7));
        return t$36174;
      })();
      return result[$join]();
    }
  };
  (io.FileStat._internal = function(changed, modified, accessed, type, mode, size) {
    if (changed == null) dart.nullFailed(I[125], 96, 27, "changed");
    if (modified == null) dart.nullFailed(I[125], 96, 41, "modified");
    if (accessed == null) dart.nullFailed(I[125], 96, 56, "accessed");
    if (type == null) dart.nullFailed(I[125], 96, 71, "type");
    if (mode == null) dart.nullFailed(I[125], 97, 12, "mode");
    if (size == null) dart.nullFailed(I[125], 97, 23, "size");
    this[changed$] = changed;
    this[modified$] = modified;
    this[accessed$] = accessed;
    this[type$] = type;
    this[mode$0] = mode;
    this[size$] = size;
    ;
  }).prototype = io.FileStat.prototype;
  dart.addRtiResources(io.FileStat, ["io|FileStat"]);
  dart.setMethodSignature(io.FileStat, () => dart.global.Object.setPrototypeOf({modeString: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(io.FileStat))));
  dart.setStaticMethodSignature(io.FileStat, () => ['_statSync', 'statSync', '_statSyncInternal', 'stat', '_stat']);
  dart.setLibraryUri(io.FileStat, I[119]);
  dart.setFieldSignature(io.FileStat, () => dart.global.Object.setPrototypeOf({
    changed: {type: T$2.DateTime(), isConst: false, isFinal: true, libraryUri: I[11]},
    modified: {type: T$2.DateTime(), isConst: false, isFinal: true, libraryUri: I[11]},
    accessed: {type: T$2.DateTime(), isConst: false, isFinal: true, libraryUri: I[11]},
    type: {type: T$2.FileSystemEntityType(), isConst: false, isFinal: true, libraryUri: I[119]},
    mode: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    size: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.FileStat))));
  dart.setStaticFieldSignature(io.FileStat, () => ['_type', '_changedTime', '_modifiedTime', '_accessedTime', '_mode', '_size', '_epoch', '_notFound']);
  dart.defineExtensionMethods(io.FileStat, ['toString']);
  dart.defineLazy(io.FileStat, {
    /*io.FileStat._type*/get _type() {
      return 0;
    },
    /*io.FileStat._changedTime*/get _changedTime() {
      return 1;
    },
    /*io.FileStat._modifiedTime*/get _modifiedTime() {
      return 2;
    },
    /*io.FileStat._accessedTime*/get _accessedTime() {
      return 3;
    },
    /*io.FileStat._mode*/get _mode() {
      return 4;
    },
    /*io.FileStat._size*/get _size() {
      return 5;
    },
    /*io.FileStat._epoch*/get _epoch() {
      return new core.DateTime.fromMillisecondsSinceEpoch(0, {isUtc: true});
    },
    /*io.FileStat._notFound*/get _notFound() {
      return new io.FileStat._internal(io.FileStat._epoch, io.FileStat._epoch, io.FileStat._epoch, io.FileSystemEntityType.notFound, 0, -1);
    }
  }, false);
  var type$0 = dart.privateName(io, "FileSystemEvent.type");
  var path$0 = dart.privateName(io, "FileSystemEvent.path");
  var isDirectory$ = dart.privateName(io, "FileSystemEvent.isDirectory");
  io.FileSystemEvent = class FileSystemEvent extends core.Object {
    get type() {
      return this[type$0];
    }
    set type(value) {
      super.type = value;
    }
    get path() {
      return this[path$0];
    }
    set path(value) {
      super.path = value;
    }
    get isDirectory() {
      return this[isDirectory$];
    }
    set isDirectory(value) {
      super.isDirectory = value;
    }
  };
  (io.FileSystemEvent.__ = function(type, path, isDirectory) {
    if (type == null) dart.nullFailed(I[125], 909, 26, "type");
    if (path == null) dart.nullFailed(I[125], 909, 37, "path");
    if (isDirectory == null) dart.nullFailed(I[125], 909, 48, "isDirectory");
    this[type$0] = type;
    this[path$0] = path;
    this[isDirectory$] = isDirectory;
    ;
  }).prototype = io.FileSystemEvent.prototype;
  dart.addRtiResources(io.FileSystemEvent, ["io|FileSystemEvent"]);
  dart.setLibraryUri(io.FileSystemEvent, I[119]);
  dart.setFieldSignature(io.FileSystemEvent, () => dart.global.Object.setPrototypeOf({
    type: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    path: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    isDirectory: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.FileSystemEvent))));
  dart.setStaticFieldSignature(io.FileSystemEvent, () => ['create', 'modify', 'delete', 'move', 'all', '_modifyAttributes', '_deleteSelf', '_isDir']);
  dart.defineLazy(io.FileSystemEvent, {
    /*io.FileSystemEvent.create*/get create() {
      return 1;
    },
    /*io.FileSystemEvent.modify*/get modify() {
      return 2;
    },
    /*io.FileSystemEvent.delete*/get delete() {
      return 4;
    },
    /*io.FileSystemEvent.move*/get move() {
      return 8;
    },
    /*io.FileSystemEvent.all*/get all() {
      return 15;
    },
    /*io.FileSystemEvent._modifyAttributes*/get _modifyAttributes() {
      return 16;
    },
    /*io.FileSystemEvent._deleteSelf*/get _deleteSelf() {
      return 32;
    },
    /*io.FileSystemEvent._isDir*/get _isDir() {
      return 64;
    }
  }, false);
  io.FileSystemCreateEvent = class FileSystemCreateEvent extends io.FileSystemEvent {
    static ['_#new#tearOff'](path, isDirectory) {
      if (path == null) dart.nullFailed(I[125], 915, 32, "path");
      if (isDirectory == null) dart.nullFailed(I[125], 915, 43, "isDirectory");
      return new io.FileSystemCreateEvent.new(path, isDirectory);
    }
    toString() {
      return "FileSystemCreateEvent('" + dart.str(this.path) + "', isDirectory=" + dart.str(this.isDirectory) + ")";
    }
  };
  (io.FileSystemCreateEvent.new = function(path, isDirectory) {
    if (path == null) dart.nullFailed(I[125], 915, 32, "path");
    if (isDirectory == null) dart.nullFailed(I[125], 915, 43, "isDirectory");
    dart.global.Object.getPrototypeOf(io.FileSystemCreateEvent).__.call(this, 1, path, isDirectory);
    ;
  }).prototype = io.FileSystemCreateEvent.prototype;
  dart.addRtiResources(io.FileSystemCreateEvent, ["io|FileSystemCreateEvent"]);
  dart.setLibraryUri(io.FileSystemCreateEvent, I[119]);
  dart.defineExtensionMethods(io.FileSystemCreateEvent, ['toString']);
  var contentChanged$ = dart.privateName(io, "FileSystemModifyEvent.contentChanged");
  io.FileSystemModifyEvent = class FileSystemModifyEvent extends io.FileSystemEvent {
    get contentChanged() {
      return this[contentChanged$];
    }
    set contentChanged(value) {
      super.contentChanged = value;
    }
    static ['_#new#tearOff'](path, isDirectory, contentChanged) {
      if (path == null) dart.nullFailed(I[125], 929, 32, "path");
      if (isDirectory == null) dart.nullFailed(I[125], 929, 43, "isDirectory");
      if (contentChanged == null) dart.nullFailed(I[125], 929, 61, "contentChanged");
      return new io.FileSystemModifyEvent.new(path, isDirectory, contentChanged);
    }
    toString() {
      return "FileSystemModifyEvent('" + dart.str(this.path) + "', isDirectory=" + dart.str(this.isDirectory) + ", " + "contentChanged=" + dart.str(this.contentChanged) + ")";
    }
  };
  (io.FileSystemModifyEvent.new = function(path, isDirectory, contentChanged) {
    if (path == null) dart.nullFailed(I[125], 929, 32, "path");
    if (isDirectory == null) dart.nullFailed(I[125], 929, 43, "isDirectory");
    if (contentChanged == null) dart.nullFailed(I[125], 929, 61, "contentChanged");
    this[contentChanged$] = contentChanged;
    dart.global.Object.getPrototypeOf(io.FileSystemModifyEvent).__.call(this, 2, path, isDirectory);
    ;
  }).prototype = io.FileSystemModifyEvent.prototype;
  dart.addRtiResources(io.FileSystemModifyEvent, ["io|FileSystemModifyEvent"]);
  dart.setLibraryUri(io.FileSystemModifyEvent, I[119]);
  dart.setFieldSignature(io.FileSystemModifyEvent, () => dart.global.Object.setPrototypeOf({contentChanged: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.FileSystemModifyEvent))));
  dart.defineExtensionMethods(io.FileSystemModifyEvent, ['toString']);
  io.FileSystemDeleteEvent = class FileSystemDeleteEvent extends io.FileSystemEvent {
    static ['_#new#tearOff'](path, isDirectory) {
      if (path == null) dart.nullFailed(I[125], 940, 32, "path");
      if (isDirectory == null) dart.nullFailed(I[125], 940, 43, "isDirectory");
      return new io.FileSystemDeleteEvent.new(path, isDirectory);
    }
    toString() {
      return "FileSystemDeleteEvent('" + dart.str(this.path) + "')";
    }
    get isDirectory() {
      return false;
    }
  };
  (io.FileSystemDeleteEvent.new = function(path, isDirectory) {
    if (path == null) dart.nullFailed(I[125], 940, 32, "path");
    if (isDirectory == null) dart.nullFailed(I[125], 940, 43, "isDirectory");
    dart.global.Object.getPrototypeOf(io.FileSystemDeleteEvent).__.call(this, 4, path, false);
    ;
  }).prototype = io.FileSystemDeleteEvent.prototype;
  dart.addRtiResources(io.FileSystemDeleteEvent, ["io|FileSystemDeleteEvent"]);
  dart.setGetterSignature(io.FileSystemDeleteEvent, () => dart.global.Object.setPrototypeOf({isDirectory: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(io.FileSystemDeleteEvent))));
  dart.setLibraryUri(io.FileSystemDeleteEvent, I[119]);
  dart.defineExtensionMethods(io.FileSystemDeleteEvent, ['toString']);
  var destination$ = dart.privateName(io, "FileSystemMoveEvent.destination");
  io.FileSystemMoveEvent = class FileSystemMoveEvent extends io.FileSystemEvent {
    get destination() {
      return this[destination$];
    }
    set destination(value) {
      super.destination = value;
    }
    static ['_#new#tearOff'](path, isDirectory, destination) {
      if (path == null) dart.nullFailed(I[125], 963, 30, "path");
      if (isDirectory == null) dart.nullFailed(I[125], 963, 41, "isDirectory");
      return new io.FileSystemMoveEvent.new(path, isDirectory, destination);
    }
    toString() {
      return "FileSystemMoveEvent('" + dart.str(this.path) + "', " + "isDirectory=" + dart.str(this.isDirectory) + ", destination=" + dart.str(this.destination) + ")";
    }
  };
  (io.FileSystemMoveEvent.new = function(path, isDirectory, destination) {
    if (path == null) dart.nullFailed(I[125], 963, 30, "path");
    if (isDirectory == null) dart.nullFailed(I[125], 963, 41, "isDirectory");
    this[destination$] = destination;
    dart.global.Object.getPrototypeOf(io.FileSystemMoveEvent).__.call(this, 8, path, isDirectory);
    ;
  }).prototype = io.FileSystemMoveEvent.prototype;
  dart.addRtiResources(io.FileSystemMoveEvent, ["io|FileSystemMoveEvent"]);
  dart.setLibraryUri(io.FileSystemMoveEvent, I[119]);
  dart.setFieldSignature(io.FileSystemMoveEvent, () => dart.global.Object.setPrototypeOf({destination: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.FileSystemMoveEvent))));
  dart.defineExtensionMethods(io.FileSystemMoveEvent, ['toString']);
  io._FileSystemWatcher = class _FileSystemWatcher extends core.Object {
    static _watch(path, events, recursive) {
      if (path == null) dart.nullFailed(I[121], 748, 14, "path");
      if (events == null) dart.nullFailed(I[121], 748, 24, "events");
      if (recursive == null) dart.nullFailed(I[121], 748, 37, "recursive");
      dart.throw(new core.UnsupportedError.new("_FileSystemWatcher.watch"));
    }
    static get isSupported() {
      dart.throw(new core.UnsupportedError.new("_FileSystemWatcher.isSupported"));
    }
  };
  (io._FileSystemWatcher.new = function() {
    ;
  }).prototype = io._FileSystemWatcher.prototype;
  dart.addRtiResources(io._FileSystemWatcher, ["io|_FileSystemWatcher"]);
  dart.setStaticMethodSignature(io._FileSystemWatcher, () => ['_watch']);
  dart.setStaticGetterSignature(io._FileSystemWatcher, () => ['isSupported']);
  dart.setLibraryUri(io._FileSystemWatcher, I[119]);
  io._IOResourceInfo = class _IOResourceInfo extends core.Object {
    static get timestamp() {
      return dart.notNull(io._IOResourceInfo._startTime) + (dart.notNull(io._IOResourceInfo._sw.elapsedMicroseconds) / 1000)[$truncate]();
    }
    get referenceValueMap() {
      return new (G.IdentityMapOfString$dynamic()).from(["type", "@" + dart.str(this.type), "id", this.id, "name", this.name]);
    }
    static getNextID() {
      let t$36174;
      t$36174 = io._IOResourceInfo._count;
      io._IOResourceInfo._count = dart.notNull(t$36174) + 1;
      return t$36174;
    }
  };
  (io._IOResourceInfo.new = function(type) {
    if (type == null) dart.nullFailed(I[130], 18, 24, "type");
    this.type = type;
    this.id = io._IOResourceInfo.getNextID();
    ;
  }).prototype = io._IOResourceInfo.prototype;
  dart.addRtiResources(io._IOResourceInfo, ["io|_IOResourceInfo"]);
  dart.setStaticMethodSignature(io._IOResourceInfo, () => ['getNextID']);
  dart.setGetterSignature(io._IOResourceInfo, () => dart.global.Object.setPrototypeOf({referenceValueMap: T$2.MapOfString$dynamic()}, dart.getGetters(dart.global.Object.getPrototypeOf(io._IOResourceInfo))));
  dart.setStaticGetterSignature(io._IOResourceInfo, () => ['timestamp']);
  dart.setLibraryUri(io._IOResourceInfo, I[119]);
  dart.setFieldSignature(io._IOResourceInfo, () => dart.global.Object.setPrototypeOf({
    type: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    id: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._IOResourceInfo))));
  dart.setStaticFieldSignature(io._IOResourceInfo, () => ['_count', '_sw', '_startTime']);
  dart.defineLazy(io._IOResourceInfo, {
    /*io._IOResourceInfo._count*/get _count() {
      return 0;
    },
    set _count(value) {
      if (value == null) dart.nullFailed(I[130], 11, 14, "_count");
    },
    /*io._IOResourceInfo._sw*/get _sw() {
      let t$36174;
      return t$36174 = new core.Stopwatch.new(), (() => {
        t$36174.start();
        return t$36174;
      })();
    },
    /*io._IOResourceInfo._startTime*/get _startTime() {
      return new core.DateTime.now().millisecondsSinceEpoch;
    }
  }, false);
  io._ReadWriteResourceInfo = class _ReadWriteResourceInfo extends io._IOResourceInfo {
    addRead(bytes) {
      if (bytes == null) dart.nullFailed(I[130], 47, 20, "bytes");
      this.readBytes = dart.notNull(this.readBytes) + dart.notNull(bytes);
      this.readCount = dart.notNull(this.readCount) + 1;
      this.lastReadTime = io._IOResourceInfo.timestamp;
    }
    didRead() {
      this.addRead(0);
    }
    addWrite(bytes) {
      if (bytes == null) dart.nullFailed(I[130], 60, 21, "bytes");
      this.writeBytes = dart.notNull(this.writeBytes) + dart.notNull(bytes);
      this.writeCount = dart.notNull(this.writeCount) + 1;
      this.lastWriteTime = io._IOResourceInfo.timestamp;
    }
    get fullValueMap() {
      return new (G.IdentityMapOfString$dynamic()).from(["type", this.type, "id", this.id, "name", this.name, "readBytes", this.readBytes, "writeBytes", this.writeBytes, "readCount", this.readCount, "writeCount", this.writeCount, "lastReadTime", this.lastReadTime, "lastWriteTime", this.lastWriteTime]);
    }
  };
  (io._ReadWriteResourceInfo.new = function(type) {
    if (type == null) dart.nullFailed(I[130], 66, 33, "type");
    this.readBytes = 0;
    this.writeBytes = 0;
    this.readCount = 0;
    this.writeCount = 0;
    this.lastReadTime = 0;
    this.lastWriteTime = 0;
    dart.global.Object.getPrototypeOf(io._ReadWriteResourceInfo).new.call(this, type);
    ;
  }).prototype = io._ReadWriteResourceInfo.prototype;
  dart.addRtiResources(io._ReadWriteResourceInfo, ["io|_ReadWriteResourceInfo"]);
  dart.setMethodSignature(io._ReadWriteResourceInfo, () => dart.global.Object.setPrototypeOf({
    addRead: T$.intTovoid(),
    didRead: T$.VoidTovoid(),
    addWrite: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._ReadWriteResourceInfo))));
  dart.setGetterSignature(io._ReadWriteResourceInfo, () => dart.global.Object.setPrototypeOf({fullValueMap: T$2.MapOfString$dynamic()}, dart.getGetters(dart.global.Object.getPrototypeOf(io._ReadWriteResourceInfo))));
  dart.setLibraryUri(io._ReadWriteResourceInfo, I[119]);
  dart.setFieldSignature(io._ReadWriteResourceInfo, () => dart.global.Object.setPrototypeOf({
    readBytes: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    writeBytes: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    readCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    writeCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    lastReadTime: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    lastWriteTime: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._ReadWriteResourceInfo))));
  io._FileResourceInfo = class _FileResourceInfo extends io._ReadWriteResourceInfo {
    static ['_#new#tearOff'](file) {
      if (file == null) dart.nullFailed(I[130], 95, 26, "file");
      return new io._FileResourceInfo.new(file);
    }
    static fileOpened(info) {
      if (info == null) dart.nullFailed(I[130], 99, 39, "info");
      if (!!dart.test(io._FileResourceInfo.openFiles[$containsKey](info.id))) dart.assertFailed(null, I[130], 100, 12, "!openFiles.containsKey(info.id)");
      io._FileResourceInfo.openFiles[$_set](info.id, info);
    }
    static fileClosed(info) {
      if (info == null) dart.nullFailed(I[130], 104, 39, "info");
      if (!dart.test(io._FileResourceInfo.openFiles[$containsKey](info.id))) dart.assertFailed(null, I[130], 105, 12, "openFiles.containsKey(info.id)");
      io._FileResourceInfo.openFiles[$remove](info.id);
    }
    static getOpenFilesList() {
      return G.ListOfMapOfString$dynamic().from(io._FileResourceInfo.openFiles[$values][$map](T$.dynamic(), dart.fn(e => {
        if (e == null) dart.nullFailed(I[130], 111, 8, "e");
        return e.referenceValueMap;
      }, T$2._FileResourceInfoToMapOfString$dynamic())));
    }
    static getOpenFiles($function, params) {
      if ($function == null) dart.nullFailed(I[130], 116, 14, "function");
      if (params == null) dart.nullFailed(I[130], 116, 44, "params");
      if (!($function === "ext.dart.io.getOpenFiles")) dart.assertFailed(null, I[130], 117, 12, "function == 'ext.dart.io.getOpenFiles'");
      let data = new (G.IdentityMapOfString$Object()).from(["type", "OpenFileList", "files", io._FileResourceInfo.getOpenFilesList()]);
      let jsonValue = convert.json.encode(data);
      return G.FutureOfServiceExtensionResponse().value(new developer.ServiceExtensionResponse.result(jsonValue));
    }
    get fileInfoMap() {
      return this.fullValueMap;
    }
    static getOpenFileInfoMapByID($function, params) {
      if ($function == null) dart.nullFailed(I[130], 129, 14, "function");
      if (params == null) dart.nullFailed(I[130], 129, 44, "params");
      let id = core.int.parse(dart.nullCheck(params[$_get]("id")));
      let result = dart.test(io._FileResourceInfo.openFiles[$containsKey](id)) ? dart.nullCheck(io._FileResourceInfo.openFiles[$_get](id)).fileInfoMap : new _js_helper.LinkedMap.new();
      let jsonValue = convert.json.encode(result);
      return G.FutureOfServiceExtensionResponse().value(new developer.ServiceExtensionResponse.result(jsonValue));
    }
    get name() {
      return this.file.path;
    }
  };
  (io._FileResourceInfo.new = function(file) {
    if (file == null) dart.nullFailed(I[130], 95, 26, "file");
    this.file = file;
    dart.global.Object.getPrototypeOf(io._FileResourceInfo).new.call(this, "OpenFile");
    io._FileResourceInfo.fileOpened(this);
  }).prototype = io._FileResourceInfo.prototype;
  dart.addRtiResources(io._FileResourceInfo, ["io|_FileResourceInfo"]);
  dart.setStaticMethodSignature(io._FileResourceInfo, () => ['fileOpened', 'fileClosed', 'getOpenFilesList', 'getOpenFiles', 'getOpenFileInfoMapByID']);
  dart.setGetterSignature(io._FileResourceInfo, () => dart.global.Object.setPrototypeOf({
    fileInfoMap: T$2.MapOfString$dynamic(),
    name: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._FileResourceInfo))));
  dart.setLibraryUri(io._FileResourceInfo, I[119]);
  dart.setFieldSignature(io._FileResourceInfo, () => dart.global.Object.setPrototypeOf({file: {type: T$2.RandomAccessFile(), isConst: false, isFinal: true, libraryUri: I[119]}}, dart.getFields(dart.global.Object.getPrototypeOf(io._FileResourceInfo))));
  dart.setStaticFieldSignature(io._FileResourceInfo, () => ['_type', 'openFiles']);
  dart.defineLazy(io._FileResourceInfo, {
    /*io._FileResourceInfo._type*/get _type() {
      return "OpenFile";
    },
    /*io._FileResourceInfo.openFiles*/get openFiles() {
      return new (G.IdentityMapOfint$_FileResourceInfo()).new();
    },
    set openFiles(value) {
      if (value == null) dart.nullFailed(I[130], 93, 38, "openFiles");
    }
  }, false);
  io._Process = class _Process extends core.Object {};
  (io._Process.new = function() {
    ;
  }).prototype = io._Process.prototype;
  dart.addRtiResources(io._Process, ["io|_Process", "io|Process"]);
  dart.setLibraryUri(io._Process, I[119]);
  var _arguments$1 = dart.privateName(io, "_arguments");
  var _workingDirectory = dart.privateName(io, "_workingDirectory");
  io._SpawnedProcessResourceInfo = class _SpawnedProcessResourceInfo extends io._IOResourceInfo {
    static ['_#new#tearOff'](process) {
      if (process == null) dart.nullFailed(I[130], 153, 36, "process");
      return new io._SpawnedProcessResourceInfo.new(process);
    }
    get name() {
      return this.process[_path$0];
    }
    stopped() {
      return io._SpawnedProcessResourceInfo.processStopped(this);
    }
    get fullValueMap() {
      return new (G.IdentityMapOfString$dynamic()).from(["type", this.type, "id", this.id, "name", this.name, "pid", this.process.pid, "startedAt", this.startedAt, "arguments", this.process[_arguments$1], "workingDirectory", this.process[_workingDirectory] == null ? "." : this.process[_workingDirectory]]);
    }
    static processStarted(info) {
      if (info == null) dart.nullFailed(I[130], 174, 53, "info");
      if (!!dart.test(io._SpawnedProcessResourceInfo.startedProcesses[$containsKey](info.id))) dart.assertFailed(null, I[130], 175, 12, "!startedProcesses.containsKey(info.id)");
      io._SpawnedProcessResourceInfo.startedProcesses[$_set](info.id, info);
    }
    static processStopped(info) {
      if (info == null) dart.nullFailed(I[130], 179, 53, "info");
      if (!dart.test(io._SpawnedProcessResourceInfo.startedProcesses[$containsKey](info.id))) dart.assertFailed(null, I[130], 180, 12, "startedProcesses.containsKey(info.id)");
      io._SpawnedProcessResourceInfo.startedProcesses[$remove](info.id);
    }
    static getStartedProcessesList() {
      return G.ListOfMapOfString$dynamic().from(io._SpawnedProcessResourceInfo.startedProcesses[$values][$map](T$.dynamic(), dart.fn(e => {
        if (e == null) dart.nullFailed(I[130], 186, 10, "e");
        return e.referenceValueMap;
      }, T$2._SpawnedProcessResourceInfoToMapOfString$dynamic())));
    }
    static getStartedProcesses($function, params) {
      if ($function == null) dart.nullFailed(I[130], 190, 14, "function");
      if (params == null) dart.nullFailed(I[130], 190, 44, "params");
      if (!($function === "ext.dart.io.getSpawnedProcesses")) dart.assertFailed(null, I[130], 191, 12, "function == 'ext.dart.io.getSpawnedProcesses'");
      let data = new (G.IdentityMapOfString$Object()).from(["type", "SpawnedProcessList", "processes", io._SpawnedProcessResourceInfo.getStartedProcessesList()]);
      let jsonValue = convert.json.encode(data);
      return G.FutureOfServiceExtensionResponse().value(new developer.ServiceExtensionResponse.result(jsonValue));
    }
    static getProcessInfoMapById($function, params) {
      if ($function == null) dart.nullFailed(I[130], 201, 14, "function");
      if (params == null) dart.nullFailed(I[130], 201, 44, "params");
      let id = core.int.parse(dart.nullCheck(params[$_get]("id")));
      let result = dart.test(io._SpawnedProcessResourceInfo.startedProcesses[$containsKey](id)) ? dart.nullCheck(io._SpawnedProcessResourceInfo.startedProcesses[$_get](id)).fullValueMap : new _js_helper.LinkedMap.new();
      let jsonValue = convert.json.encode(result);
      return G.FutureOfServiceExtensionResponse().value(new developer.ServiceExtensionResponse.result(jsonValue));
    }
  };
  (io._SpawnedProcessResourceInfo.new = function(process) {
    if (process == null) dart.nullFailed(I[130], 153, 36, "process");
    this.process = process;
    this.startedAt = io._IOResourceInfo.timestamp;
    dart.global.Object.getPrototypeOf(io._SpawnedProcessResourceInfo).new.call(this, "SpawnedProcess");
    io._SpawnedProcessResourceInfo.processStarted(this);
  }).prototype = io._SpawnedProcessResourceInfo.prototype;
  dart.addRtiResources(io._SpawnedProcessResourceInfo, ["io|_SpawnedProcessResourceInfo"]);
  dart.setMethodSignature(io._SpawnedProcessResourceInfo, () => dart.global.Object.setPrototypeOf({stopped: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(io._SpawnedProcessResourceInfo))));
  dart.setStaticMethodSignature(io._SpawnedProcessResourceInfo, () => ['processStarted', 'processStopped', 'getStartedProcessesList', 'getStartedProcesses', 'getProcessInfoMapById']);
  dart.setGetterSignature(io._SpawnedProcessResourceInfo, () => dart.global.Object.setPrototypeOf({
    name: T$.String(),
    fullValueMap: T$2.MapOfString$dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._SpawnedProcessResourceInfo))));
  dart.setLibraryUri(io._SpawnedProcessResourceInfo, I[119]);
  dart.setFieldSignature(io._SpawnedProcessResourceInfo, () => dart.global.Object.setPrototypeOf({
    process: {type: T$2._Process(), isConst: false, isFinal: true, libraryUri: I[119]},
    startedAt: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._SpawnedProcessResourceInfo))));
  dart.setStaticFieldSignature(io._SpawnedProcessResourceInfo, () => ['_type', 'startedProcesses']);
  dart.defineLazy(io._SpawnedProcessResourceInfo, {
    /*io._SpawnedProcessResourceInfo._type*/get _type() {
      return "SpawnedProcess";
    },
    /*io._SpawnedProcessResourceInfo.startedProcesses*/get startedProcesses() {
      return new (G.LinkedMapOfint$_SpawnedProcessResourceInfo()).new();
    },
    set startedProcesses(value) {
      if (value == null) dart.nullFailed(I[130], 150, 48, "startedProcesses");
    }
  }, false);
  var __IOSink_encoding = dart.privateName(io, "_#IOSink#encoding");
  var __IOSink_encoding_isSet = dart.privateName(io, "_#IOSink#encoding#isSet");
  io.IOSink = class IOSink extends core.Object {
    static new(target, opts) {
      if (target == null) dart.nullFailed(I[129], 31, 44, "target");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[129], 32, 21, "encoding");
      return new io._IOSinkImpl.new(target, encoding);
    }
    static ['_#new#tearOff'](target, opts) {
      if (target == null) dart.nullFailed(I[129], 31, 44, "target");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[129], 32, 21, "encoding");
      return io.IOSink.new(target, {encoding: encoding});
    }
    get encoding() {
      let t$36174;
      return dart.test(this[__IOSink_encoding_isSet]) ? (t$36174 = this[__IOSink_encoding], t$36174) : dart.throw(new _internal.LateError.fieldNI("encoding"));
    }
    set encoding(encoding$35param) {
      if (encoding$35param == null) dart.nullFailed(I[129], 38, 17, "encoding#param");
      this[__IOSink_encoding_isSet] = true;
      this[__IOSink_encoding] = encoding$35param;
    }
  };
  (io.IOSink[dart.mixinNew] = function() {
    this[__IOSink_encoding] = null;
    this[__IOSink_encoding_isSet] = false;
  }).prototype = io.IOSink.prototype;
  dart.addRtiResources(io.IOSink, ["io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setStaticMethodSignature(io.IOSink, () => ['new']);
  dart.setGetterSignature(io.IOSink, () => dart.global.Object.setPrototypeOf({encoding: T$2.Encoding()}, dart.getGetters(dart.global.Object.getPrototypeOf(io.IOSink))));
  dart.setSetterSignature(io.IOSink, () => dart.global.Object.setPrototypeOf({encoding: T$2.Encoding()}, dart.getSetters(dart.global.Object.getPrototypeOf(io.IOSink))));
  dart.setLibraryUri(io.IOSink, I[119]);
  dart.setFieldSignature(io.IOSink, () => dart.global.Object.setPrototypeOf({
    [__IOSink_encoding]: {type: T$2.EncodingN(), isConst: false, isFinal: false, libraryUri: I[41]},
    [__IOSink_encoding_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.IOSink))));
  io._IOService = class _IOService extends core.Object {
    static _dispatch(request, data) {
      if (request == null) dart.nullFailed(I[121], 761, 40, "request");
      if (data == null) dart.nullFailed(I[121], 761, 54, "data");
      dart.throw(new core.UnsupportedError.new("_IOService._dispatch"));
    }
    static ['_#new#tearOff']() {
      return new io._IOService.new();
    }
  };
  (io._IOService.new = function() {
    ;
  }).prototype = io._IOService.prototype;
  dart.addRtiResources(io._IOService, ["io|_IOService"]);
  dart.setStaticMethodSignature(io._IOService, () => ['_dispatch']);
  dart.setLibraryUri(io._IOService, I[119]);
  dart.setStaticFieldSignature(io._IOService, () => ['fileExists', 'fileCreate', 'fileDelete', 'fileRename', 'fileCopy', 'fileOpen', 'fileResolveSymbolicLinks', 'fileClose', 'filePosition', 'fileSetPosition', 'fileTruncate', 'fileLength', 'fileLengthFromPath', 'fileLastAccessed', 'fileSetLastAccessed', 'fileLastModified', 'fileSetLastModified', 'fileFlush', 'fileReadByte', 'fileWriteByte', 'fileRead', 'fileReadInto', 'fileWriteFrom', 'fileCreateLink', 'fileDeleteLink', 'fileRenameLink', 'fileLinkTarget', 'fileType', 'fileIdentical', 'fileStat', 'fileLock', 'fileCreatePipe', 'socketLookup', 'socketListInterfaces', 'socketReverseLookup', 'directoryCreate', 'directoryDelete', 'directoryExists', 'directoryCreateTemp', 'directoryListStart', 'directoryListNext', 'directoryListStop', 'directoryRename', 'sslProcessFilter']);
  dart.defineLazy(io._IOService, {
    /*io._IOService.fileExists*/get fileExists() {
      return 0;
    },
    /*io._IOService.fileCreate*/get fileCreate() {
      return 1;
    },
    /*io._IOService.fileDelete*/get fileDelete() {
      return 2;
    },
    /*io._IOService.fileRename*/get fileRename() {
      return 3;
    },
    /*io._IOService.fileCopy*/get fileCopy() {
      return 4;
    },
    /*io._IOService.fileOpen*/get fileOpen() {
      return 5;
    },
    /*io._IOService.fileResolveSymbolicLinks*/get fileResolveSymbolicLinks() {
      return 6;
    },
    /*io._IOService.fileClose*/get fileClose() {
      return 7;
    },
    /*io._IOService.filePosition*/get filePosition() {
      return 8;
    },
    /*io._IOService.fileSetPosition*/get fileSetPosition() {
      return 9;
    },
    /*io._IOService.fileTruncate*/get fileTruncate() {
      return 10;
    },
    /*io._IOService.fileLength*/get fileLength() {
      return 11;
    },
    /*io._IOService.fileLengthFromPath*/get fileLengthFromPath() {
      return 12;
    },
    /*io._IOService.fileLastAccessed*/get fileLastAccessed() {
      return 13;
    },
    /*io._IOService.fileSetLastAccessed*/get fileSetLastAccessed() {
      return 14;
    },
    /*io._IOService.fileLastModified*/get fileLastModified() {
      return 15;
    },
    /*io._IOService.fileSetLastModified*/get fileSetLastModified() {
      return 16;
    },
    /*io._IOService.fileFlush*/get fileFlush() {
      return 17;
    },
    /*io._IOService.fileReadByte*/get fileReadByte() {
      return 18;
    },
    /*io._IOService.fileWriteByte*/get fileWriteByte() {
      return 19;
    },
    /*io._IOService.fileRead*/get fileRead() {
      return 20;
    },
    /*io._IOService.fileReadInto*/get fileReadInto() {
      return 21;
    },
    /*io._IOService.fileWriteFrom*/get fileWriteFrom() {
      return 22;
    },
    /*io._IOService.fileCreateLink*/get fileCreateLink() {
      return 23;
    },
    /*io._IOService.fileDeleteLink*/get fileDeleteLink() {
      return 24;
    },
    /*io._IOService.fileRenameLink*/get fileRenameLink() {
      return 25;
    },
    /*io._IOService.fileLinkTarget*/get fileLinkTarget() {
      return 26;
    },
    /*io._IOService.fileType*/get fileType() {
      return 27;
    },
    /*io._IOService.fileIdentical*/get fileIdentical() {
      return 28;
    },
    /*io._IOService.fileStat*/get fileStat() {
      return 29;
    },
    /*io._IOService.fileLock*/get fileLock() {
      return 30;
    },
    /*io._IOService.fileCreatePipe*/get fileCreatePipe() {
      return 31;
    },
    /*io._IOService.socketLookup*/get socketLookup() {
      return 32;
    },
    /*io._IOService.socketListInterfaces*/get socketListInterfaces() {
      return 33;
    },
    /*io._IOService.socketReverseLookup*/get socketReverseLookup() {
      return 34;
    },
    /*io._IOService.directoryCreate*/get directoryCreate() {
      return 35;
    },
    /*io._IOService.directoryDelete*/get directoryDelete() {
      return 36;
    },
    /*io._IOService.directoryExists*/get directoryExists() {
      return 37;
    },
    /*io._IOService.directoryCreateTemp*/get directoryCreateTemp() {
      return 38;
    },
    /*io._IOService.directoryListStart*/get directoryListStart() {
      return 39;
    },
    /*io._IOService.directoryListNext*/get directoryListNext() {
      return 40;
    },
    /*io._IOService.directoryListStop*/get directoryListStop() {
      return 41;
    },
    /*io._IOService.directoryRename*/get directoryRename() {
      return 42;
    },
    /*io._IOService.sslProcessFilter*/get sslProcessFilter() {
      return 43;
    }
  }, false);
  io.Link = class Link extends core.Object {
    static new(path) {
      if (path == null) dart.nullFailed(I[131], 12, 23, "path");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return new io._Link.new(path);
      }
      return overrides.createLink(path);
    }
    static ['_#new#tearOff'](path) {
      if (path == null) dart.nullFailed(I[131], 12, 23, "path");
      return io.Link.new(path);
    }
    static fromRawPath(rawPath) {
      if (rawPath == null) dart.nullFailed(I[131], 21, 38, "rawPath");
      return new io._Link.fromRawPath(rawPath);
    }
    static ['_#fromRawPath#tearOff'](rawPath) {
      if (rawPath == null) dart.nullFailed(I[131], 21, 38, "rawPath");
      return io.Link.fromRawPath(rawPath);
    }
    static fromUri(uri) {
      if (uri == null) dart.nullFailed(I[131], 33, 28, "uri");
      return io.Link.new(uri.toFilePath());
    }
    static ['_#fromUri#tearOff'](uri) {
      if (uri == null) dart.nullFailed(I[131], 33, 28, "uri");
      return io.Link.fromUri(uri);
    }
  };
  (io.Link[dart.mixinNew] = function() {
  }).prototype = io.Link.prototype;
  dart.addRtiResources(io.Link, ["io|Link", "io|FileSystemEntity"]);
  dart.setStaticMethodSignature(io.Link, () => ['new', 'fromRawPath', 'fromUri']);
  dart.setLibraryUri(io.Link, I[119]);
  var _path$2 = dart.privateName(io, "_Link._path");
  var _rawPath$1 = dart.privateName(io, "_Link._rawPath");
  io._Link = class _Link extends io.FileSystemEntity {
    get [_path$0]() {
      return this[_path$2];
    }
    set [_path$0](value) {
      super[_path$0] = value;
    }
    get [_rawPath$]() {
      return this[_rawPath$1];
    }
    set [_rawPath$](value) {
      super[_rawPath$] = value;
    }
    static ['_#new#tearOff'](path) {
      if (path == null) dart.nullFailed(I[131], 231, 16, "path");
      return new io._Link.new(path);
    }
    static ['_#fromRawPath#tearOff'](rawPath) {
      if (rawPath == null) dart.nullFailed(I[131], 235, 31, "rawPath");
      return new io._Link.fromRawPath(rawPath);
    }
    get path() {
      return this[_path$0];
    }
    toString() {
      return "Link: '" + dart.str(this.path) + "'";
    }
    exists() {
      return io.FileSystemEntity._isLinkRaw(this[_rawPath$]);
    }
    existsSync() {
      return io.FileSystemEntity._isLinkRawSync(this[_rawPath$]);
    }
    get absolute() {
      return dart.test(this.isAbsolute) ? this : new io._Link.new(this[_absolutePath]);
    }
    create(target, opts) {
      if (target == null) dart.nullFailed(I[131], 249, 30, "target");
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[131], 249, 44, "recursive");
      let result = dart.test(recursive) ? this.parent.create({recursive: true}) : G.FutureOfNull().value(null);
      return result.then(T$.ObjectN(), dart.fn(_ => io._File._dispatchWithNamespace(23, [null, this[_rawPath$], target]), T$2.DirectoryNToFutureOfObjectN())).then(T$2.Link(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot create link to target '" + dart.str(target) + "'", this.path);
        return this;
      }, T$2.ObjectNTo_Link()));
    }
    createSync(target, opts) {
      if (target == null) dart.nullFailed(I[131], 262, 26, "target");
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[131], 262, 40, "recursive");
      if (dart.test(recursive)) {
        this.parent.createSync({recursive: true});
      }
      let result = io._File._createLink(io._Namespace._namespace, this[_rawPath$], target);
      io._Link.throwIfError(result, "Cannot create link", this.path);
    }
    updateSync(target) {
      if (target == null) dart.nullFailed(I[131], 270, 26, "target");
      this.deleteSync();
      this.createSync(target);
    }
    update(target) {
      if (target == null) dart.nullFailed(I[131], 279, 30, "target");
      return this.delete().then(T$2.Link(), dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[131], 284, 33, "_");
        return this.create(target);
      }, T$2.FileSystemEntityToFutureOfLink()));
    }
    [_delete](opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[131], 287, 30, "recursive");
      if (dart.test(recursive)) {
        return io.Directory.fromRawPath(this[_rawPath$]).delete({recursive: true}).then(T$2.Link(), dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[131], 291, 18, "_");
          return this;
        }, T$2.FileSystemEntityTo_Link()));
      }
      return io._File._dispatchWithNamespace(24, [null, this[_rawPath$]]).then(T$2.Link(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot delete link", this.path);
        return this;
      }, T$2.ObjectNTo_Link()));
    }
    [_deleteSync](opts) {
      let recursive = opts && 'recursive' in opts ? opts.recursive : false;
      if (recursive == null) dart.nullFailed(I[131], 300, 26, "recursive");
      if (dart.test(recursive)) {
        return io.Directory.fromRawPath(this[_rawPath$]).deleteSync({recursive: true});
      }
      let result = io._File._deleteLinkNative(io._Namespace._namespace, this[_rawPath$]);
      io._Link.throwIfError(result, "Cannot delete link", this.path);
    }
    rename(newPath) {
      if (newPath == null) dart.nullFailed(I[131], 308, 30, "newPath");
      return io._File._dispatchWithNamespace(25, [null, this[_rawPath$], newPath]).then(T$2.Link(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot rename link to '" + dart.str(newPath) + "'", this.path);
        return io.Link.new(newPath);
      }, T$2.ObjectNToLink()));
    }
    renameSync(newPath) {
      if (newPath == null) dart.nullFailed(I[131], 317, 26, "newPath");
      let result = io._File._renameLink(io._Namespace._namespace, this[_rawPath$], newPath);
      io._Link.throwIfError(result, "Cannot rename link '" + dart.str(this.path) + "' to '" + dart.str(newPath) + "'");
      return io.Link.new(newPath);
    }
    target() {
      return io._File._dispatchWithNamespace(26, [null, this[_rawPath$]]).then(T$.String(), dart.fn(response => {
        io._checkForErrorResponse(response, "Cannot get target of link", this.path);
        return T$.String()[_as](response);
      }, T$.ObjectNToString()));
    }
    targetSync() {
      let result = io._File._linkTarget(io._Namespace._namespace, this[_rawPath$]);
      io._Link.throwIfError(result, "Cannot read link", this.path);
      return T$.String()[_as](result);
    }
    static throwIfError(result, msg, path = "") {
      if (msg == null) dart.nullFailed(I[131], 337, 46, "msg");
      if (path == null) dart.nullFailed(I[131], 337, 59, "path");
      if (T$2.OSError()[_is](result)) {
        dart.throw(io.FileSystemException._fromOSError(result, msg, path));
      }
    }
  };
  (io._Link.new = function(path) {
    if (path == null) dart.nullFailed(I[131], 231, 16, "path");
    this[_path$2] = path;
    this[_rawPath$1] = io.FileSystemEntity._toUtf8Array(path);
    ;
  }).prototype = io._Link.prototype;
  (io._Link.fromRawPath = function(rawPath) {
    if (rawPath == null) dart.nullFailed(I[131], 235, 31, "rawPath");
    this[_rawPath$1] = io.FileSystemEntity._toNullTerminatedUtf8Array(rawPath);
    this[_path$2] = io.FileSystemEntity._toStringFromUtf8Array(rawPath);
    ;
  }).prototype = io._Link.prototype;
  dart.addRtiResources(io._Link, ["io|_Link", "io|Link", "io|FileSystemEntity"]);
  dart.setMethodSignature(io._Link, () => dart.global.Object.setPrototypeOf({
    exists: T$1.VoidToFutureOfbool(),
    existsSync: T$.VoidTobool(),
    create: T$2.String__ToFutureOfLink(),
    createSync: T$2.String__Tovoid$4(),
    updateSync: T$.StringTovoid(),
    update: T$2.StringToFutureOfLink(),
    [_delete]: T$2.__ToFutureOfLink(),
    [_deleteSync]: T$2.__Tovoid$1(),
    rename: T$2.StringToFutureOfLink(),
    renameSync: T$2.StringToLink(),
    target: T$2.VoidToFutureOfString(),
    targetSync: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._Link))));
  dart.setStaticMethodSignature(io._Link, () => ['throwIfError']);
  dart.setGetterSignature(io._Link, () => dart.global.Object.setPrototypeOf({
    path: T$.String(),
    absolute: T$2.Link()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._Link))));
  dart.setLibraryUri(io._Link, I[119]);
  dart.setFieldSignature(io._Link, () => dart.global.Object.setPrototypeOf({
    [_path$0]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_rawPath$]: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._Link))));
  dart.defineExtensionMethods(io._Link, ['toString']);
  io._Namespace = class _Namespace extends core.Object {
    static get _namespace() {
      dart.throw(new core.UnsupportedError.new("_Namespace"));
    }
    static get _namespacePointer() {
      dart.throw(new core.UnsupportedError.new("_Namespace"));
    }
    static _setupNamespace(namespace) {
      dart.throw(new core.UnsupportedError.new("_Namespace"));
    }
  };
  (io._Namespace.new = function() {
    ;
  }).prototype = io._Namespace.prototype;
  dart.addRtiResources(io._Namespace, ["io|_Namespace"]);
  dart.setStaticMethodSignature(io._Namespace, () => ['_setupNamespace']);
  dart.setStaticGetterSignature(io._Namespace, () => ['_namespace', '_namespacePointer']);
  dart.setLibraryUri(io._Namespace, I[119]);
  io._NetworkProfiling = class _NetworkProfiling extends core.Object {
    static _registerServiceExtension() {
      developer.registerExtension(io._NetworkProfiling._kHttpEnableTimelineLogging, C[177] || CT.C177);
      developer.registerExtension("ext.dart.io.getSocketProfile", C[177] || CT.C177);
      developer.registerExtension(io._NetworkProfiling._kSocketProfilingEnabledRPC, C[177] || CT.C177);
      developer.registerExtension("ext.dart.io.clearSocketProfile", C[177] || CT.C177);
      developer.registerExtension("ext.dart.io.getVersion", C[177] || CT.C177);
      developer.registerExtension("ext.dart.io.getHttpProfile", C[177] || CT.C177);
      developer.registerExtension(io._NetworkProfiling._kGetHttpProfileRequestRPC, C[177] || CT.C177);
      developer.registerExtension("ext.dart.io.clearHttpProfile", C[177] || CT.C177);
    }
    static _serviceExtensionHandler(method, parameters) {
      if (method == null) dart.nullFailed(I[132], 73, 14, "method");
      if (parameters == null) dart.nullFailed(I[132], 73, 42, "parameters");
      return async.async(T$2.ServiceExtensionResponse(), function* _serviceExtensionHandler() {
        try {
          let responseJson = null;
          switch (method) {
            case "ext.dart.io.httpEnableTimelineLogging":
              {
                if (dart.test(parameters[$containsKey]("enabled"))) {
                  io._setHttpEnableTimelineLogging(parameters);
                }
                responseJson = io._getHttpEnableTimelineLogging();
                break;
              }
            case "ext.dart.io.getHttpProfile":
              {
                let updatedSince = dart.test(parameters[$containsKey]("updatedSince")) ? core.int.tryParse(dart.nullCheck(parameters[$_get]("updatedSince"))) : null;
                responseJson = convert.json.encode(new (G.IdentityMapOfString$Object()).from(["type", "HttpProfile", "timestamp", new core.DateTime.now().microsecondsSinceEpoch, "requests", (yield async.async(T$3.ListOfMapOfString$dynamic(), function*() {
                    let t$36174 = G.ListOfMapOfString$dynamic().of(_http.HttpProfiler.serializeHttpProfileRequests(updatedSince));
                    t$36174[$addAll](yield async.Future.wait(T$2.MapOfString$dynamic(), developer.getHttpClientProfilingData()[$where](dart.fn(p => {
                      if (p == null) dart.nullFailed(I[132], 93, 54, "p");
                      return updatedSince == null || dart.notNull(T$.int()[_as](p[$_get]("_lastUpdateTime"))) >= dart.notNull(updatedSince);
                    }, T$3.MapOfString$dynamicTobool()))[$map](T$3.FutureOfMapOfString$dynamic(), dart.fn(p => {
                      if (p == null) dart.nullFailed(I[132], 96, 25, "p");
                      return io._createHttpProfileRequestFromProfileMap(p, {ref: true});
                    }, T$3.MapOfString$dynamicToFutureOfMapOfString$dynamic()))));
                    return t$36174;
                  }))]));
                break;
              }
            case "ext.dart.io.getHttpProfileRequest":
              {
                responseJson = (yield io._getHttpProfileRequest(parameters));
                break;
              }
            case "ext.dart.io.clearHttpProfile":
              {
                _http.HttpProfiler.clear();
                responseJson = io._success();
                break;
              }
            case "ext.dart.io.getSocketProfile":
              {
                responseJson = io._SocketProfile.toJson();
                break;
              }
            case "ext.dart.io.socketProfilingEnabled":
              {
                responseJson = io._socketProfilingEnabled(parameters);
                break;
              }
            case "ext.dart.io.clearSocketProfile":
              {
                responseJson = io._SocketProfile.clear();
                break;
              }
            case "ext.dart.io.getVersion":
              {
                responseJson = io._NetworkProfiling.getVersion();
                break;
              }
            default:
              {
                return new developer.ServiceExtensionResponse.error(-32000, "Method " + dart.str(method) + " does not exist");
              }
          }
          return new developer.ServiceExtensionResponse.result(responseJson);
        } catch (t$36$35e) {
          let errorMessage = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](errorMessage)) {
            return new developer.ServiceExtensionResponse.error(-32602, dart.toString(errorMessage));
          } else
            throw t$36$35e;
        }
      });
    }
    static getVersion() {
      return convert.json.encode(new (G.IdentityMapOfString$Object()).from(["type", "Version", "major", 4, "minor", 0]));
    }
  };
  (io._NetworkProfiling.new = function() {
    ;
  }).prototype = io._NetworkProfiling.prototype;
  dart.addRtiResources(io._NetworkProfiling, ["io|_NetworkProfiling"]);
  dart.setStaticMethodSignature(io._NetworkProfiling, () => ['_registerServiceExtension', '_serviceExtensionHandler', 'getVersion']);
  dart.setLibraryUri(io._NetworkProfiling, I[119]);
  dart.setStaticFieldSignature(io._NetworkProfiling, () => ['_kHttpEnableTimelineLogging', '_kGetHttpProfileRPC', '_kGetHttpProfileRequestRPC', '_kClearHttpProfileRPC', '_kClearSocketProfileRPC', '_kGetSocketProfileRPC', '_kSocketProfilingEnabledRPC', '_kGetVersionRPC']);
  dart.defineLazy(io._NetworkProfiling, {
    /*io._NetworkProfiling._kHttpEnableTimelineLogging*/get _kHttpEnableTimelineLogging() {
      return "ext.dart.io.httpEnableTimelineLogging";
    },
    /*io._NetworkProfiling._kGetHttpProfileRPC*/get _kGetHttpProfileRPC() {
      return "ext.dart.io.getHttpProfile";
    },
    /*io._NetworkProfiling._kGetHttpProfileRequestRPC*/get _kGetHttpProfileRequestRPC() {
      return "ext.dart.io.getHttpProfileRequest";
    },
    /*io._NetworkProfiling._kClearHttpProfileRPC*/get _kClearHttpProfileRPC() {
      return "ext.dart.io.clearHttpProfile";
    },
    /*io._NetworkProfiling._kClearSocketProfileRPC*/get _kClearSocketProfileRPC() {
      return "ext.dart.io.clearSocketProfile";
    },
    /*io._NetworkProfiling._kGetSocketProfileRPC*/get _kGetSocketProfileRPC() {
      return "ext.dart.io.getSocketProfile";
    },
    /*io._NetworkProfiling._kSocketProfilingEnabledRPC*/get _kSocketProfilingEnabledRPC() {
      return "ext.dart.io.socketProfilingEnabled";
    },
    /*io._NetworkProfiling._kGetVersionRPC*/get _kGetVersionRPC() {
      return "ext.dart.io.getVersion";
    }
  }, false);
  io._SocketProfile = class _SocketProfile extends core.Object {
    static set enableSocketProfiling(enabled) {
      if (enabled == null) dart.nullFailed(I[132], 208, 41, "enabled");
      if (enabled != io._SocketProfile._enableSocketProfiling) {
        developer.postEvent("SocketProfilingStateChange", new _js_helper.LinkedMap.from(["isolateId", developer.Service.getIsolateID(isolate.Isolate.current), "enabled", enabled]));
        io._SocketProfile._enableSocketProfiling = enabled;
      }
    }
    static get enableSocketProfiling() {
      return io._SocketProfile._enableSocketProfiling;
    }
    static toJson() {
      return convert.json.encode(new (G.IdentityMapOfString$Object()).from(["type", "SocketProfile", "sockets", io._SocketProfile._idToSocketStatistic[$values][$map](T$2.MapOfString$dynamic(), dart.fn(f => {
          if (f == null) dart.nullFailed(I[132], 225, 53, "f");
          return f.toMap();
        }, T$3._SocketStatisticToMapOfString$dynamic()))[$toList]()]));
    }
    static collectNewSocket(id, type, addr, port) {
      if (id == null) dart.nullFailed(I[132], 229, 11, "id");
      if (type == null) dart.nullFailed(I[132], 229, 22, "type");
      if (addr == null) dart.nullFailed(I[132], 229, 44, "addr");
      if (port == null) dart.nullFailed(I[132], 229, 54, "port");
      io._SocketProfile.collectStatistic(id, io._SocketProfileType.startTime);
      io._SocketProfile.collectStatistic(id, io._SocketProfileType.socketType, type);
      io._SocketProfile.collectStatistic(id, io._SocketProfileType.address, addr);
      io._SocketProfile.collectStatistic(id, io._SocketProfileType.port, port);
    }
    static collectStatistic(id, type, object = null) {
      let t$36178, t$36177, t$36176, t$36176$, t$36176$0;
      if (id == null) dart.nullFailed(I[132], 236, 36, "id");
      if (type == null) dart.nullFailed(I[132], 236, 59, "type");
      let idKey = dart.toString(id);
      if (!dart.test(io._SocketProfile._enableSocketProfiling)) {
        return;
      }
      if (!dart.test(io._SocketProfile._idToSocketStatistic[$containsKey](idKey)) && type != io._SocketProfileType.startTime) return;
      let stats = (t$36176 = io._SocketProfile._idToSocketStatistic, t$36177 = t$36176[$_get](idKey), t$36177 == null ? (t$36178 = new io._SocketStatistic.new(idKey), t$36176[$_set](idKey, t$36178), t$36178) : t$36177);
      switch (type) {
        case C[178] || CT.C178:
          {
            stats.startTime = developer.Timeline.now;
            break;
          }
        case C[179] || CT.C179:
          {
            stats.endTime = developer.Timeline.now;
            break;
          }
        case C[180] || CT.C180:
          {
            if (!T$3.InternetAddress()[_is](object)) dart.assertFailed(null, I[132], 255, 16, "object is InternetAddress");
            let internetAddress = T$3.InternetAddress()[_as](object);
            stats.address = dart.equals(internetAddress.type, io.InternetAddress.anyIPv6) || dart.equals(internetAddress.type, io.InternetAddress.loopbackIPv6) ? "[" + dart.str(internetAddress.address) + "]" : internetAddress.address;
            break;
          }
        case C[181] || CT.C181:
          {
            if (!T$.int()[_is](object)) dart.assertFailed(null, I[132], 263, 16, "object is int");
            stats.port = T$.intN()[_as](object);
            break;
          }
        case C[182] || CT.C182:
          {
            if (!(typeof object == 'string')) dart.assertFailed(null, I[132], 267, 16, "object is String");
            stats.socketType = T$.StringN()[_as](object);
            break;
          }
        case C[183] || CT.C183:
          {
            if (object == null) return;
            t$36176$ = stats;
            t$36176$.readBytes = dart.notNull(t$36176$.readBytes) + dart.notNull(T$.int()[_as](object));
            stats.lastReadTime = developer.Timeline.now;
            break;
          }
        case C[184] || CT.C184:
          {
            if (object == null) return;
            t$36176$0 = stats;
            t$36176$0.writeBytes = dart.notNull(t$36176$0.writeBytes) + dart.notNull(T$.int()[_as](object));
            stats.lastWriteTime = developer.Timeline.now;
            break;
          }
        default:
          {
            dart.throw(new core.ArgumentError.new("type " + dart.str(type) + " does not exist"));
          }
      }
    }
    static start() {
      io._SocketProfile.enableSocketProfiling = true;
      return io._success();
    }
    static pause() {
      io._SocketProfile.enableSocketProfiling = false;
      return io._success();
    }
    static clear() {
      io._SocketProfile._idToSocketStatistic[$clear]();
      return io._success();
    }
  };
  (io._SocketProfile.new = function() {
    ;
  }).prototype = io._SocketProfile.prototype;
  dart.addRtiResources(io._SocketProfile, ["io|_SocketProfile"]);
  dart.setStaticMethodSignature(io._SocketProfile, () => ['toJson', 'collectNewSocket', 'collectStatistic', 'start', 'pause', 'clear']);
  dart.setStaticGetterSignature(io._SocketProfile, () => ['enableSocketProfiling']);
  dart.setStaticSetterSignature(io._SocketProfile, () => ['enableSocketProfiling']);
  dart.setLibraryUri(io._SocketProfile, I[119]);
  dart.setStaticFieldSignature(io._SocketProfile, () => ['_kType', '_enableSocketProfiling', '_idToSocketStatistic']);
  dart.defineLazy(io._SocketProfile, {
    /*io._SocketProfile._kType*/get _kType() {
      return "SocketProfile";
    },
    /*io._SocketProfile._enableSocketProfiling*/get _enableSocketProfiling() {
      return false;
    },
    set _enableSocketProfiling(value) {
      if (value == null) dart.nullFailed(I[132], 220, 15, "_enableSocketProfiling");
    },
    /*io._SocketProfile._idToSocketStatistic*/get _idToSocketStatistic() {
      return new (G.IdentityMapOfString$_SocketStatistic()).new();
    },
    set _idToSocketStatistic(value) {
      if (value == null) dart.nullFailed(I[132], 221, 40, "_idToSocketStatistic");
    }
  }, false);
  io._SocketProfileType = class _SocketProfileType extends core._Enum {
    [_enumToString]() {
      return "_SocketProfileType." + dart.str(this[_name$]);
    }
  };
  (io._SocketProfileType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[132], 304, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[132], 304, 6, "#name");
    dart.global.Object.getPrototypeOf(io._SocketProfileType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = io._SocketProfileType.prototype;
  dart.addRtiResources(io._SocketProfileType, ["io|_SocketProfileType"]);
  dart.setMethodSignature(io._SocketProfileType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(io._SocketProfileType))));
  dart.setLibraryUri(io._SocketProfileType, I[119]);
  dart.setStaticFieldSignature(io._SocketProfileType, () => ['values', 'startTime', 'endTime', 'address', 'port', 'socketType', 'readBytes', 'writeBytes']);
  dart.defineLazy(io._SocketProfileType, {
    /*io._SocketProfileType.values*/get values() {
      return C[185] || CT.C185;
    },
    /*io._SocketProfileType.startTime*/get startTime() {
      return C[178] || CT.C178;
    },
    /*io._SocketProfileType.endTime*/get endTime() {
      return C[179] || CT.C179;
    },
    /*io._SocketProfileType.address*/get address() {
      return C[180] || CT.C180;
    },
    /*io._SocketProfileType.port*/get port() {
      return C[181] || CT.C181;
    },
    /*io._SocketProfileType.socketType*/get socketType() {
      return C[182] || CT.C182;
    },
    /*io._SocketProfileType.readBytes*/get readBytes() {
      return C[183] || CT.C183;
    },
    /*io._SocketProfileType.writeBytes*/get writeBytes() {
      return C[184] || CT.C184;
    }
  }, false);
  var _setIfNotNull = dart.privateName(io, "_setIfNotNull");
  io._SocketStatistic = class _SocketStatistic extends core.Object {
    static ['_#new#tearOff'](id) {
      if (id == null) dart.nullFailed(I[132], 327, 25, "id");
      return new io._SocketStatistic.new(id);
    }
    toMap() {
      let map = new (G.IdentityMapOfString$dynamic()).from(["id", this.id]);
      this[_setIfNotNull](map, "startTime", this.startTime);
      this[_setIfNotNull](map, "endTime", this.endTime);
      this[_setIfNotNull](map, "address", this.address);
      this[_setIfNotNull](map, "port", this.port);
      this[_setIfNotNull](map, "socketType", this.socketType);
      this[_setIfNotNull](map, "readBytes", this.readBytes);
      this[_setIfNotNull](map, "writeBytes", this.writeBytes);
      this[_setIfNotNull](map, "lastWriteTime", this.lastWriteTime);
      this[_setIfNotNull](map, "lastReadTime", this.lastReadTime);
      return map;
    }
    [_setIfNotNull](json, key, value) {
      if (json == null) dart.nullFailed(I[132], 345, 43, "json");
      if (key == null) dart.nullFailed(I[132], 345, 56, "key");
      if (value == null) return;
      json[$_set](key, value);
    }
  };
  (io._SocketStatistic.new = function(id) {
    if (id == null) dart.nullFailed(I[132], 327, 25, "id");
    this.startTime = null;
    this.endTime = null;
    this.address = null;
    this.port = null;
    this.socketType = null;
    this.readBytes = 0;
    this.writeBytes = 0;
    this.lastWriteTime = null;
    this.lastReadTime = null;
    this.id = id;
    ;
  }).prototype = io._SocketStatistic.prototype;
  dart.addRtiResources(io._SocketStatistic, ["io|_SocketStatistic"]);
  dart.setMethodSignature(io._SocketStatistic, () => dart.global.Object.setPrototypeOf({
    toMap: T$2.VoidToMapOfString$dynamic(),
    [_setIfNotNull]: T$3.MapOfString$dynamicAndStringAndObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._SocketStatistic))));
  dart.setLibraryUri(io._SocketStatistic, I[119]);
  dart.setFieldSignature(io._SocketStatistic, () => dart.global.Object.setPrototypeOf({
    id: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    startTime: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    endTime: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    address: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    port: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    socketType: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    readBytes: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    writeBytes: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    lastWriteTime: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    lastReadTime: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._SocketStatistic))));
  var _previous$4 = dart.privateName(io, "_previous");
  var _createDirectory$ = dart.privateName(io, "_createDirectory");
  var _getCurrentDirectory$ = dart.privateName(io, "_getCurrentDirectory");
  var _setCurrentDirectory$ = dart.privateName(io, "_setCurrentDirectory");
  var _getSystemTempDirectory$ = dart.privateName(io, "_getSystemTempDirectory");
  var _createFile$ = dart.privateName(io, "_createFile");
  var _stat$ = dart.privateName(io, "_stat");
  var _statSync$ = dart.privateName(io, "_statSync");
  var _fseIdentical$ = dart.privateName(io, "_fseIdentical");
  var _fseIdenticalSync$ = dart.privateName(io, "_fseIdenticalSync");
  var _fseGetType$ = dart.privateName(io, "_fseGetType");
  var _fseGetTypeSync$ = dart.privateName(io, "_fseGetTypeSync");
  var _fsWatch$ = dart.privateName(io, "_fsWatch");
  var _fsWatchIsSupported$ = dart.privateName(io, "_fsWatchIsSupported");
  var _createLink$ = dart.privateName(io, "_createLink");
  var _socketConnect$ = dart.privateName(io, "_socketConnect");
  var _socketStartConnect$ = dart.privateName(io, "_socketStartConnect");
  var _serverSocketBind$ = dart.privateName(io, "_serverSocketBind");
  var _stdin$ = dart.privateName(io, "_stdin");
  var _stdout$ = dart.privateName(io, "_stdout");
  var _stderr$ = dart.privateName(io, "_stderr");
  io.IOOverrides = class IOOverrides extends core.Object {
    static get current() {
      let t$36178;
      return T$3.IOOverridesN()[_as]((t$36178 = async.Zone.current._get(io._ioOverridesToken), t$36178 == null ? io.IOOverrides._global : t$36178));
    }
    static set global(overrides) {
      io.IOOverrides._global = overrides;
    }
    static runZoned(R, body, opts) {
      let t$36179, t$36178, t$36179$, t$36178$, t$36179$0, t$36178$0, t$36179$1, t$36178$1, t$36179$2, t$36178$2, t$36179$3, t$36178$3, t$36179$4, t$36178$4, t$36179$5, t$36178$5, t$36179$6, t$36178$6, t$36179$7, t$36178$7, t$36179$8, t$36178$8, t$36179$9, t$36178$9, t$36179$10, t$36178$10, t$36179$11, t$36178$11, t$36179$12, t$36178$12, t$36179$13, t$36178$13, t$36179$14, t$36178$14, t$36179$15, t$36178$15, t$36179$16, t$36178$16, t$36179$17, t$36178$17;
      if (body == null) dart.nullFailed(I[133], 52, 26, "body");
      let createDirectory = opts && 'createDirectory' in opts ? opts.createDirectory : null;
      let getCurrentDirectory = opts && 'getCurrentDirectory' in opts ? opts.getCurrentDirectory : null;
      let setCurrentDirectory = opts && 'setCurrentDirectory' in opts ? opts.setCurrentDirectory : null;
      let getSystemTempDirectory = opts && 'getSystemTempDirectory' in opts ? opts.getSystemTempDirectory : null;
      let createFile = opts && 'createFile' in opts ? opts.createFile : null;
      let stat = opts && 'stat' in opts ? opts.stat : null;
      let statSync = opts && 'statSync' in opts ? opts.statSync : null;
      let fseIdentical = opts && 'fseIdentical' in opts ? opts.fseIdentical : null;
      let fseIdenticalSync = opts && 'fseIdenticalSync' in opts ? opts.fseIdenticalSync : null;
      let fseGetType = opts && 'fseGetType' in opts ? opts.fseGetType : null;
      let fseGetTypeSync = opts && 'fseGetTypeSync' in opts ? opts.fseGetTypeSync : null;
      let fsWatch = opts && 'fsWatch' in opts ? opts.fsWatch : null;
      let fsWatchIsSupported = opts && 'fsWatchIsSupported' in opts ? opts.fsWatchIsSupported : null;
      let createLink = opts && 'createLink' in opts ? opts.createLink : null;
      let socketConnect = opts && 'socketConnect' in opts ? opts.socketConnect : null;
      let socketStartConnect = opts && 'socketStartConnect' in opts ? opts.socketStartConnect : null;
      let serverSocketBind = opts && 'serverSocketBind' in opts ? opts.serverSocketBind : null;
      let stdin = opts && 'stdin' in opts ? opts.stdin : null;
      let stdout = opts && 'stdout' in opts ? opts.stdout : null;
      let stderr = opts && 'stderr' in opts ? opts.stderr : null;
      let current = io.IOOverrides.current;
      let currentScope = null;
      if (T$3._IOOverridesScope()[_is](current)) {
        currentScope = current;
        current = currentScope[_previous$4];
      }
      let overrides = new io._IOOverridesScope.new(current, (t$36178 = createDirectory, t$36178 == null ? (t$36179 = currentScope, t$36179 == null ? null : t$36179[_createDirectory$]) : t$36178), (t$36178$ = getCurrentDirectory, t$36178$ == null ? (t$36179$ = currentScope, t$36179$ == null ? null : t$36179$[_getCurrentDirectory$]) : t$36178$), (t$36178$0 = setCurrentDirectory, t$36178$0 == null ? (t$36179$0 = currentScope, t$36179$0 == null ? null : t$36179$0[_setCurrentDirectory$]) : t$36178$0), (t$36178$1 = getSystemTempDirectory, t$36178$1 == null ? (t$36179$1 = currentScope, t$36179$1 == null ? null : t$36179$1[_getSystemTempDirectory$]) : t$36178$1), (t$36178$2 = createFile, t$36178$2 == null ? (t$36179$2 = currentScope, t$36179$2 == null ? null : t$36179$2[_createFile$]) : t$36178$2), (t$36178$3 = stat, t$36178$3 == null ? (t$36179$3 = currentScope, t$36179$3 == null ? null : t$36179$3[_stat$]) : t$36178$3), (t$36178$4 = statSync, t$36178$4 == null ? (t$36179$4 = currentScope, t$36179$4 == null ? null : t$36179$4[_statSync$]) : t$36178$4), (t$36178$5 = fseIdentical, t$36178$5 == null ? (t$36179$5 = currentScope, t$36179$5 == null ? null : t$36179$5[_fseIdentical$]) : t$36178$5), (t$36178$6 = fseIdenticalSync, t$36178$6 == null ? (t$36179$6 = currentScope, t$36179$6 == null ? null : t$36179$6[_fseIdenticalSync$]) : t$36178$6), (t$36178$7 = fseGetType, t$36178$7 == null ? (t$36179$7 = currentScope, t$36179$7 == null ? null : t$36179$7[_fseGetType$]) : t$36178$7), (t$36178$8 = fseGetTypeSync, t$36178$8 == null ? (t$36179$8 = currentScope, t$36179$8 == null ? null : t$36179$8[_fseGetTypeSync$]) : t$36178$8), (t$36178$9 = fsWatch, t$36178$9 == null ? (t$36179$9 = currentScope, t$36179$9 == null ? null : t$36179$9[_fsWatch$]) : t$36178$9), (t$36178$10 = fsWatchIsSupported, t$36178$10 == null ? (t$36179$10 = currentScope, t$36179$10 == null ? null : t$36179$10[_fsWatchIsSupported$]) : t$36178$10), (t$36178$11 = createLink, t$36178$11 == null ? (t$36179$11 = currentScope, t$36179$11 == null ? null : t$36179$11[_createLink$]) : t$36178$11), (t$36178$12 = socketConnect, t$36178$12 == null ? (t$36179$12 = currentScope, t$36179$12 == null ? null : t$36179$12[_socketConnect$]) : t$36178$12), (t$36178$13 = socketStartConnect, t$36178$13 == null ? (t$36179$13 = currentScope, t$36179$13 == null ? null : t$36179$13[_socketStartConnect$]) : t$36178$13), (t$36178$14 = serverSocketBind, t$36178$14 == null ? (t$36179$14 = currentScope, t$36179$14 == null ? null : t$36179$14[_serverSocketBind$]) : t$36178$14), (t$36178$15 = stdin, t$36178$15 == null ? (t$36179$15 = currentScope, t$36179$15 == null ? null : t$36179$15[_stdin$]) : t$36178$15), (t$36178$16 = stdout, t$36178$16 == null ? (t$36179$16 = currentScope, t$36179$16 == null ? null : t$36179$16[_stdout$]) : t$36178$16), (t$36178$17 = stderr, t$36178$17 == null ? (t$36179$17 = currentScope, t$36179$17 == null ? null : t$36179$17[_stderr$]) : t$36178$17));
      return async.runZoned(R, body, {zoneValues: new (G.LinkedMapOfObjectN$ObjectN()).from([io._ioOverridesToken, overrides])});
    }
    static runWithIOOverrides(R, body, overrides) {
      if (body == null) dart.nullFailed(I[133], 153, 36, "body");
      if (overrides == null) dart.nullFailed(I[133], 153, 56, "overrides");
      return async.runZoned(R, body, {zoneValues: new (G.LinkedMapOfObjectN$ObjectN()).from([io._ioOverridesToken, overrides])});
    }
    createDirectory(path) {
      if (path == null) dart.nullFailed(I[133], 164, 36, "path");
      return new io._Directory.new(path);
    }
    getCurrentDirectory() {
      return io._Directory.current;
    }
    setCurrentDirectory(path) {
      if (path == null) dart.nullFailed(I[133], 176, 35, "path");
      io._Directory.current = path;
    }
    getSystemTempDirectory() {
      return io._Directory.systemTemp;
    }
    createFile(path) {
      if (path == null) dart.nullFailed(I[133], 192, 26, "path");
      return new io._File.new(path);
    }
    stat(path) {
      if (path == null) dart.nullFailed(I[133], 200, 32, "path");
      return io.FileStat._stat(path);
    }
    statSync(path) {
      if (path == null) dart.nullFailed(I[133], 208, 28, "path");
      return io.FileStat._statSyncInternal(path);
    }
    fseIdentical(path1, path2) {
      if (path1 == null) dart.nullFailed(I[133], 219, 36, "path1");
      if (path2 == null) dart.nullFailed(I[133], 219, 50, "path2");
      return io.FileSystemEntity._identical(path1, path2);
    }
    fseIdenticalSync(path1, path2) {
      if (path1 == null) dart.nullFailed(I[133], 228, 32, "path1");
      if (path2 == null) dart.nullFailed(I[133], 228, 46, "path2");
      return io.FileSystemEntity._identicalSync(path1, path2);
    }
    fseGetType(path, followLinks) {
      if (path == null) dart.nullFailed(I[133], 236, 50, "path");
      if (followLinks == null) dart.nullFailed(I[133], 236, 61, "followLinks");
      return io.FileSystemEntity._getTypeRequest(convert.utf8.encode(path), followLinks);
    }
    fseGetTypeSync(path, followLinks) {
      if (path == null) dart.nullFailed(I[133], 244, 46, "path");
      if (followLinks == null) dart.nullFailed(I[133], 244, 57, "followLinks");
      return io.FileSystemEntity._getTypeSyncHelper(convert.utf8.encode(path), followLinks);
    }
    fsWatch(path, events, recursive) {
      if (path == null) dart.nullFailed(I[133], 254, 42, "path");
      if (events == null) dart.nullFailed(I[133], 254, 52, "events");
      if (recursive == null) dart.nullFailed(I[133], 254, 65, "recursive");
      return io._FileSystemWatcher._watch(path, events, recursive);
    }
    fsWatchIsSupported() {
      return io._FileSystemWatcher.isSupported;
    }
    createLink(path) {
      if (path == null) dart.nullFailed(I[133], 270, 26, "path");
      return new io._Link.new(path);
    }
    socketConnect(host, port, opts) {
      if (port == null) dart.nullFailed(I[133], 278, 42, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[133], 279, 27, "sourcePort");
      let timeout = opts && 'timeout' in opts ? opts.timeout : null;
      return io.Socket._connect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort, timeout: timeout});
    }
    socketStartConnect(host, port, opts) {
      if (port == null) dart.nullFailed(I[133], 289, 63, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[133], 290, 27, "sourcePort");
      return io.Socket._startConnect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort});
    }
    serverSocketBind(address, port, opts) {
      if (port == null) dart.nullFailed(I[133], 302, 54, "port");
      let backlog = opts && 'backlog' in opts ? opts.backlog : 0;
      if (backlog == null) dart.nullFailed(I[133], 303, 12, "backlog");
      let v6Only = opts && 'v6Only' in opts ? opts.v6Only : false;
      if (v6Only == null) dart.nullFailed(I[133], 303, 30, "v6Only");
      let shared = opts && 'shared' in opts ? opts.shared : false;
      if (shared == null) dart.nullFailed(I[133], 303, 51, "shared");
      return io.ServerSocket._bind(address, port, {backlog: backlog, v6Only: v6Only, shared: shared});
    }
    get stdin() {
      return io._stdin;
    }
    get stdout() {
      return io._stdout;
    }
    get stderr() {
      return io._stderr;
    }
  };
  (io.IOOverrides.new = function() {
    ;
  }).prototype = io.IOOverrides.prototype;
  dart.addRtiResources(io.IOOverrides, ["io|IOOverrides"]);
  dart.setMethodSignature(io.IOOverrides, () => dart.global.Object.setPrototypeOf({
    createDirectory: T$2.StringToDirectory(),
    getCurrentDirectory: T$3.VoidToDirectory(),
    setCurrentDirectory: T$.StringTovoid(),
    getSystemTempDirectory: T$3.VoidToDirectory(),
    createFile: T$2.StringToFile(),
    stat: T$2.StringToFutureOfFileStat(),
    statSync: T$2.StringToFileStat(),
    fseIdentical: T$2.StringAndStringToFutureOfbool(),
    fseIdenticalSync: T$.StringAndStringTobool(),
    fseGetType: T$3.StringAndboolToFutureOfFileSystemEntityType(),
    fseGetTypeSync: T$3.StringAndboolToFileSystemEntityType(),
    fsWatch: T$2.StringAndintAndboolToStreamOfFileSystemEvent(),
    fsWatchIsSupported: T$.VoidTobool(),
    createLink: T$2.StringToLink(),
    socketConnect: T$3.dynamicAndint__ToFutureOfSocket(),
    socketStartConnect: T$3.dynamicAndint__ToFutureOfConnectionTaskOfSocket(),
    serverSocketBind: T$3.dynamicAndint__ToFutureOfServerSocket()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io.IOOverrides))));
  dart.setStaticMethodSignature(io.IOOverrides, () => ['runZoned', 'runWithIOOverrides']);
  dart.setGetterSignature(io.IOOverrides, () => dart.global.Object.setPrototypeOf({
    stdin: T$3.Stdin(),
    stdout: T$3.Stdout(),
    stderr: T$3.Stdout()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io.IOOverrides))));
  dart.setStaticGetterSignature(io.IOOverrides, () => ['current']);
  dart.setStaticSetterSignature(io.IOOverrides, () => ['global']);
  dart.setLibraryUri(io.IOOverrides, I[119]);
  dart.setStaticFieldSignature(io.IOOverrides, () => ['_global']);
  dart.defineLazy(io.IOOverrides, {
    /*io.IOOverrides._global*/get _global() {
      return null;
    },
    set _global(value) {}
  }, false);
  io._IOOverridesScope = class _IOOverridesScope extends io.IOOverrides {
    static ['_#new#tearOff'](_previous, _createDirectory, _getCurrentDirectory, _setCurrentDirectory, _getSystemTempDirectory, _createFile, _stat, _statSync, _fseIdentical, _fseIdenticalSync, _fseGetType, _fseGetTypeSync, _fsWatch, _fsWatchIsSupported, _createLink, _socketConnect, _socketStartConnect, _serverSocketBind, _stdin, _stdout, _stderr) {
      return new io._IOOverridesScope.new(_previous, _createDirectory, _getCurrentDirectory, _setCurrentDirectory, _getSystemTempDirectory, _createFile, _stat, _statSync, _fseIdentical, _fseIdenticalSync, _fseGetType, _fseGetTypeSync, _fsWatch, _fsWatchIsSupported, _createLink, _socketConnect, _socketStartConnect, _serverSocketBind, _stdin, _stdout, _stderr);
    }
    createDirectory(path) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path == null) dart.nullFailed(I[133], 425, 36, "path");
      t$36178$0 = (t$36178$ = (t$36178 = this[_createDirectory$], t$36178 == null ? null : t$36178(path)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.createDirectory(path)) : t$36178$);
      return t$36178$0 == null ? super.createDirectory(path) : t$36178$0;
    }
    getCurrentDirectory() {
      let t$36178, t$36179, t$36178$, t$36178$0;
      t$36178$0 = (t$36178$ = (t$36178 = this[_getCurrentDirectory$], t$36178 == null ? null : t$36178()), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.getCurrentDirectory()) : t$36178$);
      return t$36178$0 == null ? super.getCurrentDirectory() : t$36178$0;
    }
    setCurrentDirectory(path) {
      if (path == null) dart.nullFailed(I[133], 437, 35, "path");
      let setter = this[_setCurrentDirectory$];
      if (setter != null) {
        setter(path);
      } else {
        super.setCurrentDirectory(path);
      }
    }
    getSystemTempDirectory() {
      let t$36178, t$36179, t$36178$, t$36178$0;
      t$36178$0 = (t$36178$ = (t$36178 = this[_getSystemTempDirectory$], t$36178 == null ? null : t$36178()), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.getSystemTempDirectory()) : t$36178$);
      return t$36178$0 == null ? super.getSystemTempDirectory() : t$36178$0;
    }
    createFile(path) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path == null) dart.nullFailed(I[133], 454, 26, "path");
      t$36178$0 = (t$36178$ = (t$36178 = this[_createFile$], t$36178 == null ? null : t$36178(path)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.createFile(path)) : t$36178$);
      return t$36178$0 == null ? super.createFile(path) : t$36178$0;
    }
    stat(path) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path == null) dart.nullFailed(I[133], 461, 32, "path");
      t$36178$0 = (t$36178$ = (t$36178 = this[_stat$], t$36178 == null ? null : t$36178(path)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.stat(path)) : t$36178$);
      return t$36178$0 == null ? super.stat(path) : t$36178$0;
    }
    statSync(path) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path == null) dart.nullFailed(I[133], 465, 28, "path");
      t$36178$0 = (t$36178$ = (t$36178 = this[_statSync$], t$36178 == null ? null : t$36178(path)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.statSync(path)) : t$36178$);
      return t$36178$0 == null ? super.statSync(path) : t$36178$0;
    }
    fseIdentical(path1, path2) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path1 == null) dart.nullFailed(I[133], 472, 36, "path1");
      if (path2 == null) dart.nullFailed(I[133], 472, 50, "path2");
      t$36178$0 = (t$36178$ = (t$36178 = this[_fseIdentical$], t$36178 == null ? null : t$36178(path1, path2)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.fseIdentical(path1, path2)) : t$36178$);
      return t$36178$0 == null ? super.fseIdentical(path1, path2) : t$36178$0;
    }
    fseIdenticalSync(path1, path2) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path1 == null) dart.nullFailed(I[133], 478, 32, "path1");
      if (path2 == null) dart.nullFailed(I[133], 478, 46, "path2");
      t$36178$0 = (t$36178$ = (t$36178 = this[_fseIdenticalSync$], t$36178 == null ? null : t$36178(path1, path2)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.fseIdenticalSync(path1, path2)) : t$36178$);
      return t$36178$0 == null ? super.fseIdenticalSync(path1, path2) : t$36178$0;
    }
    fseGetType(path, followLinks) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path == null) dart.nullFailed(I[133], 484, 50, "path");
      if (followLinks == null) dart.nullFailed(I[133], 484, 61, "followLinks");
      t$36178$0 = (t$36178$ = (t$36178 = this[_fseGetType$], t$36178 == null ? null : t$36178(path, followLinks)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.fseGetType(path, followLinks)) : t$36178$);
      return t$36178$0 == null ? super.fseGetType(path, followLinks) : t$36178$0;
    }
    fseGetTypeSync(path, followLinks) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path == null) dart.nullFailed(I[133], 490, 46, "path");
      if (followLinks == null) dart.nullFailed(I[133], 490, 57, "followLinks");
      t$36178$0 = (t$36178$ = (t$36178 = this[_fseGetTypeSync$], t$36178 == null ? null : t$36178(path, followLinks)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.fseGetTypeSync(path, followLinks)) : t$36178$);
      return t$36178$0 == null ? super.fseGetTypeSync(path, followLinks) : t$36178$0;
    }
    fsWatch(path, events, recursive) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path == null) dart.nullFailed(I[133], 497, 42, "path");
      if (events == null) dart.nullFailed(I[133], 497, 52, "events");
      if (recursive == null) dart.nullFailed(I[133], 497, 65, "recursive");
      t$36178$0 = (t$36178$ = (t$36178 = this[_fsWatch$], t$36178 == null ? null : t$36178(path, events, recursive)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.fsWatch(path, events, recursive)) : t$36178$);
      return t$36178$0 == null ? super.fsWatch(path, events, recursive) : t$36178$0;
    }
    fsWatchIsSupported() {
      let t$36178, t$36179, t$36178$, t$36178$0;
      t$36178$0 = (t$36178$ = (t$36178 = this[_fsWatchIsSupported$], t$36178 == null ? null : t$36178()), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.fsWatchIsSupported()) : t$36178$);
      return t$36178$0 == null ? super.fsWatchIsSupported() : t$36178$0;
    }
    createLink(path) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (path == null) dart.nullFailed(I[133], 510, 26, "path");
      t$36178$0 = (t$36178$ = (t$36178 = this[_createLink$], t$36178 == null ? null : t$36178(path)), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.createLink(path)) : t$36178$);
      return t$36178$0 == null ? super.createLink(path) : t$36178$0;
    }
    socketConnect(host, port, opts) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (port == null) dart.nullFailed(I[133], 517, 42, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[133], 518, 31, "sourcePort");
      let timeout = opts && 'timeout' in opts ? opts.timeout : null;
      t$36178$0 = (t$36178$ = (t$36178 = this[_socketConnect$], t$36178 == null ? null : t$36178(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort, timeout: timeout})), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.socketConnect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort, timeout: timeout})) : t$36178$);
      return t$36178$0 == null ? super.socketConnect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort, timeout: timeout}) : t$36178$0;
    }
    socketStartConnect(host, port, opts) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (port == null) dart.nullFailed(I[133], 533, 63, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[133], 534, 31, "sourcePort");
      t$36178$0 = (t$36178$ = (t$36178 = this[_socketStartConnect$], t$36178 == null ? null : t$36178(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort})), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.socketStartConnect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort})) : t$36178$);
      return t$36178$0 == null ? super.socketStartConnect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort}) : t$36178$0;
    }
    serverSocketBind(address, port, opts) {
      let t$36178, t$36179, t$36178$, t$36178$0;
      if (port == null) dart.nullFailed(I[133], 544, 54, "port");
      let backlog = opts && 'backlog' in opts ? opts.backlog : 0;
      if (backlog == null) dart.nullFailed(I[133], 545, 16, "backlog");
      let v6Only = opts && 'v6Only' in opts ? opts.v6Only : false;
      if (v6Only == null) dart.nullFailed(I[133], 545, 34, "v6Only");
      let shared = opts && 'shared' in opts ? opts.shared : false;
      if (shared == null) dart.nullFailed(I[133], 545, 55, "shared");
      t$36178$0 = (t$36178$ = (t$36178 = this[_serverSocketBind$], t$36178 == null ? null : t$36178(address, port, {backlog: backlog, v6Only: v6Only, shared: shared})), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.serverSocketBind(address, port, {backlog: backlog, v6Only: v6Only, shared: shared})) : t$36178$);
      return t$36178$0 == null ? super.serverSocketBind(address, port, {backlog: backlog, v6Only: v6Only, shared: shared}) : t$36178$0;
    }
    get stdin() {
      let t$36178, t$36179, t$36178$, t$36178$0;
      t$36178$0 = (t$36178$ = (t$36178 = this[_stdin$], t$36178 == null ? null : t$36178()), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.stdin) : t$36178$);
      return t$36178$0 == null ? super.stdin : t$36178$0;
    }
    get stdout() {
      let t$36178, t$36179, t$36178$, t$36178$0;
      t$36178$0 = (t$36178$ = (t$36178 = this[_stdout$], t$36178 == null ? null : t$36178()), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.stdout) : t$36178$);
      return t$36178$0 == null ? super.stdout : t$36178$0;
    }
    get stderr() {
      let t$36178, t$36179, t$36178$, t$36178$0;
      t$36178$0 = (t$36178$ = (t$36178 = this[_stderr$], t$36178 == null ? null : t$36178()), t$36178$ == null ? (t$36179 = this[_previous$4], t$36179 == null ? null : t$36179.stderr) : t$36178$);
      return t$36178$0 == null ? super.stderr : t$36178$0;
    }
  };
  (io._IOOverridesScope.new = function(_previous, _createDirectory, _getCurrentDirectory, _setCurrentDirectory, _getSystemTempDirectory, _createFile, _stat, _statSync, _fseIdentical, _fseIdenticalSync, _fseGetType, _fseGetTypeSync, _fsWatch, _fsWatchIsSupported, _createLink, _socketConnect, _socketStartConnect, _serverSocketBind, _stdin, _stdout, _stderr) {
    this[_previous$4] = _previous;
    this[_createDirectory$] = _createDirectory;
    this[_getCurrentDirectory$] = _getCurrentDirectory;
    this[_setCurrentDirectory$] = _setCurrentDirectory;
    this[_getSystemTempDirectory$] = _getSystemTempDirectory;
    this[_createFile$] = _createFile;
    this[_stat$] = _stat;
    this[_statSync$] = _statSync;
    this[_fseIdentical$] = _fseIdentical;
    this[_fseIdenticalSync$] = _fseIdenticalSync;
    this[_fseGetType$] = _fseGetType;
    this[_fseGetTypeSync$] = _fseGetTypeSync;
    this[_fsWatch$] = _fsWatch;
    this[_fsWatchIsSupported$] = _fsWatchIsSupported;
    this[_createLink$] = _createLink;
    this[_socketConnect$] = _socketConnect;
    this[_socketStartConnect$] = _socketStartConnect;
    this[_serverSocketBind$] = _serverSocketBind;
    this[_stdin$] = _stdin;
    this[_stdout$] = _stdout;
    this[_stderr$] = _stderr;
    ;
  }).prototype = io._IOOverridesScope.prototype;
  dart.addRtiResources(io._IOOverridesScope, ["io|_IOOverridesScope"]);
  dart.setLibraryUri(io._IOOverridesScope, I[119]);
  dart.setFieldSignature(io._IOOverridesScope, () => dart.global.Object.setPrototypeOf({
    [_previous$4]: {type: T$3.IOOverridesN(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_createDirectory$]: {type: T$3.StringToNDirectory(), isConst: false, isFinal: true},
    [_getCurrentDirectory$]: {type: T$3.VoidToNDirectory(), isConst: false, isFinal: true},
    [_setCurrentDirectory$]: {type: T$3.StringToNvoid(), isConst: false, isFinal: true},
    [_getSystemTempDirectory$]: {type: T$3.VoidToNDirectory(), isConst: false, isFinal: true},
    [_createFile$]: {type: T$3.StringToNFile(), isConst: false, isFinal: true},
    [_stat$]: {type: T$3.StringToNFutureOfFileStat(), isConst: false, isFinal: true},
    [_statSync$]: {type: T$3.StringToNFileStat(), isConst: false, isFinal: true},
    [_fseIdentical$]: {type: T$3.StringAndStringToNFutureOfbool(), isConst: false, isFinal: true},
    [_fseIdenticalSync$]: {type: T$3.StringAndStringToNbool(), isConst: false, isFinal: true},
    [_fseGetType$]: {type: T$3.StringAndboolToNFutureOfFileSystemEntityType(), isConst: false, isFinal: true},
    [_fseGetTypeSync$]: {type: T$3.StringAndboolToNFileSystemEntityType(), isConst: false, isFinal: true},
    [_fsWatch$]: {type: T$3.StringAndintAndboolToNStreamOfFileSystemEvent(), isConst: false, isFinal: true},
    [_fsWatchIsSupported$]: {type: T$3.VoidToNbool(), isConst: false, isFinal: true},
    [_createLink$]: {type: T$3.StringToNLink(), isConst: false, isFinal: true},
    [_socketConnect$]: {type: T$3.dynamicAndint__ToNFutureOfSocket(), isConst: false, isFinal: true},
    [_socketStartConnect$]: {type: T$3.dynamicAndint__ToNFutureOfConnectionTaskOfSocket(), isConst: false, isFinal: true},
    [_serverSocketBind$]: {type: T$3.dynamicAndint__ToNFutureOfServerSocket(), isConst: false, isFinal: true},
    [_stdin$]: {type: T$3.VoidToNStdin(), isConst: false, isFinal: true},
    [_stdout$]: {type: T$3.VoidToNStdout(), isConst: false, isFinal: true},
    [_stderr$]: {type: T$3.VoidToNStdout(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._IOOverridesScope))));
  io.Platform = class Platform extends core.Object {
    static get localeName() {
      return io._Platform.localeName();
    }
    static get environment() {
      return io._Platform.environment;
    }
    static get executable() {
      return io._Platform.executable;
    }
    static get resolvedExecutable() {
      return io._Platform.resolvedExecutable;
    }
    static get script() {
      return io._Platform.script;
    }
    static get executableArguments() {
      return io._Platform.executableArguments;
    }
    static get packageConfig() {
      return io._Platform.packageConfig;
    }
    static get lineTerminator() {
      return dart.test(io.Platform.isWindows) ? "\r\n" : "\n";
    }
    static ['_#new#tearOff']() {
      return new io.Platform.new();
    }
  };
  (io.Platform.new = function() {
    ;
  }).prototype = io.Platform.prototype;
  dart.addRtiResources(io.Platform, ["io|Platform"]);
  dart.setStaticGetterSignature(io.Platform, () => ['localeName', 'environment', 'executable', 'resolvedExecutable', 'script', 'executableArguments', 'packageConfig', 'lineTerminator']);
  dart.setLibraryUri(io.Platform, I[119]);
  dart.setStaticFieldSignature(io.Platform, () => ['numberOfProcessors', 'pathSeparator', 'operatingSystem', 'operatingSystemVersion', 'localHostname', 'version', 'isLinux', 'isMacOS', 'isWindows', 'isAndroid', 'isIOS', 'isFuchsia']);
  dart.defineLazy(io.Platform, {
    /*io.Platform.numberOfProcessors*/get numberOfProcessors() {
      return io._Platform.numberOfProcessors;
    },
    /*io.Platform.pathSeparator*/get pathSeparator() {
      return io._Platform.pathSeparator;
    },
    /*io.Platform.operatingSystem*/get operatingSystem() {
      return io._Platform.operatingSystem;
    },
    /*io.Platform.operatingSystemVersion*/get operatingSystemVersion() {
      return io._Platform.operatingSystemVersion;
    },
    /*io.Platform.localHostname*/get localHostname() {
      return io._Platform.localHostname;
    },
    /*io.Platform.version*/get version() {
      return io._Platform.version;
    },
    /*io.Platform.isLinux*/get isLinux() {
      return io.Platform.operatingSystem === "linux";
    },
    /*io.Platform.isMacOS*/get isMacOS() {
      return io.Platform.operatingSystem === "macos";
    },
    /*io.Platform.isWindows*/get isWindows() {
      return io.Platform.operatingSystem === "windows";
    },
    /*io.Platform.isAndroid*/get isAndroid() {
      return io.Platform.operatingSystem === "android";
    },
    /*io.Platform.isIOS*/get isIOS() {
      return io.Platform.operatingSystem === "ios";
    },
    /*io.Platform.isFuchsia*/get isFuchsia() {
      return io.Platform.operatingSystem === "fuchsia";
    }
  }, false);
  io._Platform = class _Platform extends core.Object {
    static _numberOfProcessors() {
      dart.throw(new core.UnsupportedError.new("Platform._numberOfProcessors"));
    }
    static _pathSeparator() {
      dart.throw(new core.UnsupportedError.new("Platform._pathSeparator"));
    }
    static _operatingSystem() {
      dart.throw(new core.UnsupportedError.new("Platform._operatingSystem"));
    }
    static _operatingSystemVersion() {
      dart.throw(new core.UnsupportedError.new("Platform._operatingSystemVersion"));
    }
    static _localHostname() {
      dart.throw(new core.UnsupportedError.new("Platform._localHostname"));
    }
    static _executable() {
      dart.throw(new core.UnsupportedError.new("Platform._executable"));
    }
    static _resolvedExecutable() {
      dart.throw(new core.UnsupportedError.new("Platform._resolvedExecutable"));
    }
    static _environment() {
      dart.throw(new core.UnsupportedError.new("Platform._environment"));
    }
    static _executableArguments() {
      dart.throw(new core.UnsupportedError.new("Platform._executableArguments"));
    }
    static _packageConfig() {
      dart.throw(new core.UnsupportedError.new("Platform._packageConfig"));
    }
    static _version() {
      dart.throw(new core.UnsupportedError.new("Platform._version"));
    }
    static _localeName() {
      dart.throw(new core.UnsupportedError.new("Platform._localeName"));
    }
    static _script() {
      dart.throw(new core.UnsupportedError.new("Platform._script"));
    }
    static localeName() {
      let result = io._Platform._localeClosure == null ? io._Platform._localeName() : dart.nullCheck(io._Platform._localeClosure)();
      if (T$2.OSError()[_is](result)) {
        dart.throw(result);
      }
      return result;
    }
    static get numberOfProcessors() {
      return io._Platform._numberOfProcessors();
    }
    static get pathSeparator() {
      return io._Platform._pathSeparator();
    }
    static get operatingSystem() {
      return io._Platform._operatingSystem();
    }
    static get script() {
      return io._Platform._script();
    }
    static get operatingSystemVersion() {
      if (io._Platform._cachedOSVersion == null) {
        let result = io._Platform._operatingSystemVersion();
        if (T$2.OSError()[_is](result)) {
          dart.throw(result);
        }
        io._Platform._cachedOSVersion = T$.StringN()[_as](result);
      }
      return dart.nullCheck(io._Platform._cachedOSVersion);
    }
    static get localHostname() {
      let result = io._Platform._localHostname();
      if (T$2.OSError()[_is](result)) {
        dart.throw(result);
      }
      return T$.String()[_as](result);
    }
    static get executableArguments() {
      return io._Platform._executableArguments();
    }
    static get environment() {
      if (io._Platform._environmentCache == null) {
        let env = io._Platform._environment();
        if (T$0.IterableOfObjectN()[_is](env)) {
          let result = dart.test(io.Platform.isWindows) ? new (G._CaseInsensitiveStringMapOfString()).new() : new (G.LinkedMapOfString$String()).new();
          for (let environmentEntry of env) {
            if (environmentEntry == null) {
              continue;
            }
            let text = T$.String()[_as](environmentEntry);
            let equalsIndex = text[$indexOf]("=");
            if (equalsIndex > 0) {
              result[$_set](text[$substring](0, equalsIndex), text[$substring](equalsIndex + 1));
            }
          }
          io._Platform._environmentCache = new (G.UnmodifiableMapViewOfString$String()).new(result);
        } else {
          io._Platform._environmentCache = env;
        }
      }
      if (T$2.OSError()[_is](io._Platform._environmentCache)) {
        dart.throw(T$.Object()[_as](io._Platform._environmentCache));
      } else {
        return T$2.MapOfString$String()[_as](dart.nullCheck(io._Platform._environmentCache));
      }
    }
    static get version() {
      return io._Platform._version();
    }
    static ['_#new#tearOff']() {
      return new io._Platform.new();
    }
  };
  (io._Platform.new = function() {
    ;
  }).prototype = io._Platform.prototype;
  dart.addRtiResources(io._Platform, ["io|_Platform"]);
  dart.setStaticMethodSignature(io._Platform, () => ['_numberOfProcessors', '_pathSeparator', '_operatingSystem', '_operatingSystemVersion', '_localHostname', '_executable', '_resolvedExecutable', '_environment', '_executableArguments', '_packageConfig', '_version', '_localeName', '_script', 'localeName']);
  dart.setStaticGetterSignature(io._Platform, () => ['numberOfProcessors', 'pathSeparator', 'operatingSystem', 'script', 'operatingSystemVersion', 'localHostname', 'executableArguments', 'environment', 'version']);
  dart.setLibraryUri(io._Platform, I[119]);
  dart.setStaticFieldSignature(io._Platform, () => ['executable', 'resolvedExecutable', 'packageConfig', '_localeClosure', '_environmentCache', '_cachedOSVersion']);
  dart.defineLazy(io._Platform, {
    /*io._Platform.executable*/get executable() {
      return T$.String()[_as](io._Platform._executable());
    },
    set executable(value) {
      if (value == null) dart.nullFailed(I[134], 36, 17, "executable");
    },
    /*io._Platform.resolvedExecutable*/get resolvedExecutable() {
      return T$.String()[_as](io._Platform._resolvedExecutable());
    },
    set resolvedExecutable(value) {
      if (value == null) dart.nullFailed(I[134], 37, 17, "resolvedExecutable");
    },
    /*io._Platform.packageConfig*/get packageConfig() {
      return io._Platform._packageConfig();
    },
    set packageConfig(value) {},
    /*io._Platform._localeClosure*/get _localeClosure() {
      return null;
    },
    set _localeClosure(value) {},
    /*io._Platform._environmentCache*/get _environmentCache() {
      return null;
    },
    set _environmentCache(value) {},
    /*io._Platform._cachedOSVersion*/get _cachedOSVersion() {
      return null;
    },
    set _cachedOSVersion(value) {}
  }, false);
  var _map$10 = dart.privateName(io, "_map");
  io._CaseInsensitiveStringMap$ = dart.generic(V => {
    var __t$_CaseInsensitiveStringMapOfV = () => (__t$_CaseInsensitiveStringMapOfV = dart.constFn(V[_eval]("io|_CaseInsensitiveStringMap<0>")))();
    var __t$VoidToV = () => (__t$VoidToV = dart.constFn(V[_eval]("0()")))();
    var __t$MapOfString$V = () => (__t$MapOfString$V = dart.constFn(V[_eval]("core|Map<core|String,0>")))();
    var __t$StringAndVTovoid = () => (__t$StringAndVTovoid = dart.constFn(V[_eval]("~(core|String,0)")))();
    var __t$VToV = () => (__t$VToV = dart.constFn(V[_eval]("0(0)")))();
    var __t$VoidToNV = () => (__t$VoidToNV = dart.constFn(V[_eval]("0()?")))();
    var __t$StringAndVToV = () => (__t$StringAndVToV = dart.constFn(V[_eval]("0(core|String,0)")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$LinkedMapOfString$V = () => (__t$LinkedMapOfString$V = dart.constFn(_js_helper.LinkedMap$(T$.String(), V)))();
    var __t$MapBaseOfString$V = () => (__t$MapBaseOfString$V = dart.constFn(collection.MapBase$(dart_rti.findType("core|String"), V)))();
    class _CaseInsensitiveStringMap extends __t$MapBaseOfString$V() {
      containsKey(key) {
        return typeof key == 'string' && dart.test(this[_map$10][$containsKey](key[$toUpperCase]()));
      }
      containsValue(value) {
        return this[_map$10][$containsValue](value);
      }
      _get(key) {
        return typeof key == 'string' ? this[_map$10][$_get](key[$toUpperCase]()) : null;
      }
      _set(key, value$) {
        let value = value$;
        T$.String()[_as](key);
        if (key == null) dart.nullFailed(I[134], 133, 28, "key");
        V[_as](value);
        this[_map$10][$_set](key[$toUpperCase](), value);
        return value$;
      }
      putIfAbsent(key, ifAbsent) {
        T$.String()[_as](key);
        if (key == null) dart.nullFailed(I[134], 137, 24, "key");
        __t$VoidToV()[_as](ifAbsent);
        if (ifAbsent == null) dart.nullFailed(I[134], 137, 31, "ifAbsent");
        return this[_map$10][$putIfAbsent](key[$toUpperCase](), ifAbsent);
      }
      addAll(other) {
        __t$MapOfString$V()[_as](other);
        if (other == null) dart.nullFailed(I[134], 141, 30, "other");
        other[$forEach](dart.fn((key, value) => {
          let t$36179, t$36178;
          if (key == null) dart.nullFailed(I[134], 142, 20, "key");
          t$36178 = key[$toUpperCase]();
          t$36179 = value;
          this._set(t$36178, t$36179);
          return t$36179;
        }, __t$StringAndVTovoid()));
      }
      remove(key) {
        return typeof key == 'string' ? this[_map$10][$remove](key[$toUpperCase]()) : null;
      }
      clear() {
        this[_map$10][$clear]();
      }
      forEach(f) {
        if (f == null) dart.nullFailed(I[134], 152, 21, "f");
        this[_map$10][$forEach](f);
      }
      get keys() {
        return this[_map$10][$keys];
      }
      get values() {
        return this[_map$10][$values];
      }
      get length() {
        return this[_map$10][$length];
      }
      get isEmpty() {
        return this[_map$10][$isEmpty];
      }
      get isNotEmpty() {
        return this[_map$10][$isNotEmpty];
      }
      get entries() {
        return this[_map$10][$entries];
      }
      map(K2, V2, transform) {
        if (transform == null) dart.nullFailed(I[134], 164, 44, "transform");
        return this[_map$10][$map](K2, V2, transform);
      }
      update(key, update, opts) {
        T$.String()[_as](key);
        if (key == null) dart.nullFailed(I[134], 167, 19, "key");
        __t$VToV()[_as](update);
        if (update == null) dart.nullFailed(I[134], 167, 26, "update");
        let ifAbsent = opts && 'ifAbsent' in opts ? opts.ifAbsent : null;
        __t$VoidToNV()[_as](ifAbsent);
        return this[_map$10][$update](key[$toUpperCase](), update, {ifAbsent: ifAbsent});
      }
      updateAll(update) {
        __t$StringAndVToV()[_as](update);
        if (update == null) dart.nullFailed(I[134], 170, 20, "update");
        this[_map$10][$updateAll](update);
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[134], 174, 25, "test");
        this[_map$10][$removeWhere](test);
      }
      toString() {
        return dart.toString(this[_map$10]);
      }
      static ['_#new#tearOff'](V) {
        return new (io._CaseInsensitiveStringMap$(V)).new();
      }
    }
    (_CaseInsensitiveStringMap.new = function() {
      this[_map$10] = new (__t$LinkedMapOfString$V()).new();
      this.$ti = this.$ti || __t$_CaseInsensitiveStringMapOfV();
      dart.global.Object.getPrototypeOf(_CaseInsensitiveStringMap).new.call(this);
      ;
    }).prototype = _CaseInsensitiveStringMap.prototype;
    dart.addRtiResources(_CaseInsensitiveStringMap, ["io|_CaseInsensitiveStringMap"]);
    dart.setMethodSignature(_CaseInsensitiveStringMap, () => dart.global.Object.setPrototypeOf({
      _get: __t$ObjectNToVN(),
      [$_get]: __t$ObjectNToVN(),
      _set: T$.ObjectNAndObjectNTovoid(),
      [$_set]: T$.ObjectNAndObjectNTovoid(),
      remove: __t$ObjectNToVN(),
      [$remove]: __t$ObjectNToVN(),
      clear: T$.VoidTovoid(),
      [$clear]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_CaseInsensitiveStringMap))));
    dart.setGetterSignature(_CaseInsensitiveStringMap, () => dart.global.Object.setPrototypeOf({
      keys: T$0.IterableOfString(),
      [$keys]: T$0.IterableOfString()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_CaseInsensitiveStringMap))));
    dart.setLibraryUri(_CaseInsensitiveStringMap, I[119]);
    dart.setFieldSignature(_CaseInsensitiveStringMap, () => dart.global.Object.setPrototypeOf({[_map$10]: {type: __t$MapOfString$V(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_CaseInsensitiveStringMap))));
    dart.defineExtensionMethods(_CaseInsensitiveStringMap, [
      'containsKey',
      'containsValue',
      '_get',
      '_set',
      'putIfAbsent',
      'addAll',
      'remove',
      'clear',
      'forEach',
      'map',
      'update',
      'updateAll',
      'removeWhere',
      'toString'
    ]);
    dart.defineExtensionAccessors(_CaseInsensitiveStringMap, [
      'keys',
      'values',
      'length',
      'isEmpty',
      'isNotEmpty',
      'entries'
    ]);
    return _CaseInsensitiveStringMap;
  });
  io._CaseInsensitiveStringMap = io._CaseInsensitiveStringMap$();
  io._ProcessUtils = class _ProcessUtils extends core.Object {
    static _exit(status) {
      if (status == null) dart.nullFailed(I[121], 301, 26, "status");
      dart.throw(new core.UnsupportedError.new("ProcessUtils._exit"));
    }
    static _setExitCode(status) {
      if (status == null) dart.nullFailed(I[121], 306, 32, "status");
      dart.throw(new core.UnsupportedError.new("ProcessUtils._setExitCode"));
    }
    static _getExitCode() {
      dart.throw(new core.UnsupportedError.new("ProcessUtils._getExitCode"));
    }
    static _sleep(millis) {
      if (millis == null) dart.nullFailed(I[121], 316, 26, "millis");
      dart.throw(new core.UnsupportedError.new("ProcessUtils._sleep"));
    }
    static _pid(process) {
      dart.throw(new core.UnsupportedError.new("ProcessUtils._pid"));
    }
    static _watchSignal(signal) {
      if (signal == null) dart.nullFailed(I[121], 326, 59, "signal");
      dart.throw(new core.UnsupportedError.new("ProcessUtils._watchSignal"));
    }
    static ['_#new#tearOff']() {
      return new io._ProcessUtils.new();
    }
  };
  (io._ProcessUtils.new = function() {
    ;
  }).prototype = io._ProcessUtils.prototype;
  dart.addRtiResources(io._ProcessUtils, ["io|_ProcessUtils"]);
  dart.setStaticMethodSignature(io._ProcessUtils, () => ['_exit', '_setExitCode', '_getExitCode', '_sleep', '_pid', '_watchSignal']);
  dart.setLibraryUri(io._ProcessUtils, I[119]);
  io.ProcessInfo = class ProcessInfo extends core.Object {
    static get currentRss() {
      dart.throw(new core.UnsupportedError.new("ProcessInfo.currentRss"));
    }
    static get maxRss() {
      dart.throw(new core.UnsupportedError.new("ProcessInfo.maxRss"));
    }
  };
  (io.ProcessInfo.new = function() {
    ;
  }).prototype = io.ProcessInfo.prototype;
  dart.addRtiResources(io.ProcessInfo, ["io|ProcessInfo"]);
  dart.setStaticGetterSignature(io.ProcessInfo, () => ['currentRss', 'maxRss']);
  dart.setLibraryUri(io.ProcessInfo, I[119]);
  var _mode$0 = dart.privateName(io, "ProcessStartMode._mode");
  io.ProcessStartMode = class ProcessStartMode extends core.Object {
    get [_mode]() {
      return this[_mode$0];
    }
    set [_mode](value) {
      super[_mode] = value;
    }
    static get values() {
      return C[186] || CT.C186;
    }
    toString() {
      return (C[191] || CT.C191)[$_get](this[_mode]);
    }
    static ['_#_internal#tearOff'](_mode) {
      if (_mode == null) dart.nullFailed(I[135], 157, 41, "_mode");
      return new io.ProcessStartMode._internal(_mode);
    }
  };
  (io.ProcessStartMode._internal = function(_mode) {
    if (_mode == null) dart.nullFailed(I[135], 157, 41, "_mode");
    this[_mode$0] = _mode;
    ;
  }).prototype = io.ProcessStartMode.prototype;
  dart.addRtiResources(io.ProcessStartMode, ["io|ProcessStartMode"]);
  dart.setStaticGetterSignature(io.ProcessStartMode, () => ['values']);
  dart.setLibraryUri(io.ProcessStartMode, I[119]);
  dart.setFieldSignature(io.ProcessStartMode, () => dart.global.Object.setPrototypeOf({[_mode]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.ProcessStartMode))));
  dart.setStaticFieldSignature(io.ProcessStartMode, () => ['normal', 'inheritStdio', 'detached', 'detachedWithStdio']);
  dart.defineExtensionMethods(io.ProcessStartMode, ['toString']);
  dart.defineLazy(io.ProcessStartMode, {
    /*io.ProcessStartMode.normal*/get normal() {
      return C[187] || CT.C187;
    },
    /*io.ProcessStartMode.inheritStdio*/get inheritStdio() {
      return C[188] || CT.C188;
    },
    /*io.ProcessStartMode.detached*/get detached() {
      return C[189] || CT.C189;
    },
    /*io.ProcessStartMode.detachedWithStdio*/get detachedWithStdio() {
      return C[190] || CT.C190;
    }
  }, false);
  var ProcessSignal_name = dart.privateName(io, "ProcessSignal.name");
  var ProcessSignal_signalNumber = dart.privateName(io, "ProcessSignal.signalNumber");
  io.Process = class Process extends core.Object {
    static start(executable, $arguments, opts) {
      if (executable == null) dart.nullFailed(I[121], 347, 39, "executable");
      if ($arguments == null) dart.nullFailed(I[121], 347, 64, "arguments");
      let workingDirectory = opts && 'workingDirectory' in opts ? opts.workingDirectory : null;
      let environment = opts && 'environment' in opts ? opts.environment : null;
      let includeParentEnvironment = opts && 'includeParentEnvironment' in opts ? opts.includeParentEnvironment : true;
      if (includeParentEnvironment == null) dart.nullFailed(I[121], 350, 12, "includeParentEnvironment");
      let runInShell = opts && 'runInShell' in opts ? opts.runInShell : false;
      if (runInShell == null) dart.nullFailed(I[121], 351, 12, "runInShell");
      let mode = opts && 'mode' in opts ? opts.mode : C[187] || CT.C187;
      if (mode == null) dart.nullFailed(I[121], 352, 24, "mode");
      dart.throw(new core.UnsupportedError.new("Process.start"));
    }
    static run(executable, $arguments, opts) {
      if (executable == null) dart.nullFailed(I[121], 357, 43, "executable");
      if ($arguments == null) dart.nullFailed(I[121], 357, 68, "arguments");
      let workingDirectory = opts && 'workingDirectory' in opts ? opts.workingDirectory : null;
      let environment = opts && 'environment' in opts ? opts.environment : null;
      let includeParentEnvironment = opts && 'includeParentEnvironment' in opts ? opts.includeParentEnvironment : true;
      if (includeParentEnvironment == null) dart.nullFailed(I[121], 360, 12, "includeParentEnvironment");
      let runInShell = opts && 'runInShell' in opts ? opts.runInShell : false;
      if (runInShell == null) dart.nullFailed(I[121], 361, 12, "runInShell");
      let stdoutEncoding = opts && 'stdoutEncoding' in opts ? opts.stdoutEncoding : C[192] || CT.C192;
      let stderrEncoding = opts && 'stderrEncoding' in opts ? opts.stderrEncoding : C[192] || CT.C192;
      dart.throw(new core.UnsupportedError.new("Process.run"));
    }
    static runSync(executable, $arguments, opts) {
      if (executable == null) dart.nullFailed(I[121], 368, 39, "executable");
      if ($arguments == null) dart.nullFailed(I[121], 368, 64, "arguments");
      let workingDirectory = opts && 'workingDirectory' in opts ? opts.workingDirectory : null;
      let environment = opts && 'environment' in opts ? opts.environment : null;
      let includeParentEnvironment = opts && 'includeParentEnvironment' in opts ? opts.includeParentEnvironment : true;
      if (includeParentEnvironment == null) dart.nullFailed(I[121], 371, 12, "includeParentEnvironment");
      let runInShell = opts && 'runInShell' in opts ? opts.runInShell : false;
      if (runInShell == null) dart.nullFailed(I[121], 372, 12, "runInShell");
      let stdoutEncoding = opts && 'stdoutEncoding' in opts ? opts.stdoutEncoding : C[192] || CT.C192;
      let stderrEncoding = opts && 'stderrEncoding' in opts ? opts.stderrEncoding : C[192] || CT.C192;
      dart.throw(new core.UnsupportedError.new("Process.runSync"));
    }
    static killPid(pid, signal = C[193] || CT.C193) {
      if (pid == null) dart.nullFailed(I[121], 379, 27, "pid");
      if (signal == null) dart.nullFailed(I[121], 379, 47, "signal");
      dart.throw(new core.UnsupportedError.new("Process.killPid"));
    }
  };
  (io.Process.new = function() {
    ;
  }).prototype = io.Process.prototype;
  dart.addRtiResources(io.Process, ["io|Process"]);
  dart.setStaticMethodSignature(io.Process, () => ['start', 'run', 'runSync', 'killPid']);
  dart.setLibraryUri(io.Process, I[119]);
  var exitCode$ = dart.privateName(io, "ProcessResult.exitCode");
  var stdout$ = dart.privateName(io, "ProcessResult.stdout");
  var stderr$ = dart.privateName(io, "ProcessResult.stderr");
  var pid$ = dart.privateName(io, "ProcessResult.pid");
  io.ProcessResult = class ProcessResult extends core.Object {
    get exitCode() {
      return this[exitCode$];
    }
    set exitCode(value) {
      super.exitCode = value;
    }
    get stdout() {
      return this[stdout$];
    }
    set stdout(value) {
      super.stdout = value;
    }
    get stderr() {
      return this[stderr$];
    }
    set stderr(value) {
      super.stderr = value;
    }
    get pid() {
      return this[pid$];
    }
    set pid(value) {
      super.pid = value;
    }
    static ['_#new#tearOff'](pid, exitCode, stdout, stderr) {
      if (pid == null) dart.nullFailed(I[135], 570, 22, "pid");
      if (exitCode == null) dart.nullFailed(I[135], 570, 32, "exitCode");
      return new io.ProcessResult.new(pid, exitCode, stdout, stderr);
    }
  };
  (io.ProcessResult.new = function(pid, exitCode, stdout, stderr) {
    if (pid == null) dart.nullFailed(I[135], 570, 22, "pid");
    if (exitCode == null) dart.nullFailed(I[135], 570, 32, "exitCode");
    this[pid$] = pid;
    this[exitCode$] = exitCode;
    this[stdout$] = stdout;
    this[stderr$] = stderr;
    ;
  }).prototype = io.ProcessResult.prototype;
  dart.addRtiResources(io.ProcessResult, ["io|ProcessResult"]);
  dart.setLibraryUri(io.ProcessResult, I[119]);
  dart.setFieldSignature(io.ProcessResult, () => dart.global.Object.setPrototypeOf({
    exitCode: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    stdout: {type: T$.dynamic(), isConst: false, isFinal: true},
    stderr: {type: T$.dynamic(), isConst: false, isFinal: true},
    pid: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.ProcessResult))));
  const signalNumber$ = ProcessSignal_signalNumber;
  const name$11 = ProcessSignal_name;
  io.ProcessSignal = class ProcessSignal extends core.Object {
    get signalNumber() {
      return this[signalNumber$];
    }
    set signalNumber(value) {
      super.signalNumber = value;
    }
    get name() {
      return this[name$11];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#_#tearOff'](signalNumber, name) {
      if (signalNumber == null) dart.nullFailed(I[135], 618, 30, "signalNumber");
      if (name == null) dart.nullFailed(I[135], 618, 49, "name");
      return new io.ProcessSignal.__(signalNumber, name);
    }
    toString() {
      return this.name;
    }
    watch() {
      return io._ProcessUtils._watchSignal(this);
    }
  };
  (io.ProcessSignal.__ = function(signalNumber, name) {
    if (signalNumber == null) dart.nullFailed(I[135], 618, 30, "signalNumber");
    if (name == null) dart.nullFailed(I[135], 618, 49, "name");
    this[signalNumber$] = signalNumber;
    this[name$11] = name;
    ;
  }).prototype = io.ProcessSignal.prototype;
  dart.addRtiResources(io.ProcessSignal, ["io|ProcessSignal"]);
  dart.setMethodSignature(io.ProcessSignal, () => dart.global.Object.setPrototypeOf({watch: T$3.VoidToStreamOfProcessSignal()}, dart.getMethods(dart.global.Object.getPrototypeOf(io.ProcessSignal))));
  dart.setLibraryUri(io.ProcessSignal, I[119]);
  dart.setFieldSignature(io.ProcessSignal, () => dart.global.Object.setPrototypeOf({
    signalNumber: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.ProcessSignal))));
  dart.setStaticFieldSignature(io.ProcessSignal, () => ['sighup', 'sigint', 'sigquit', 'sigill', 'sigtrap', 'sigabrt', 'sigbus', 'sigfpe', 'sigkill', 'sigusr1', 'sigsegv', 'sigusr2', 'sigpipe', 'sigalrm', 'sigterm', 'sigchld', 'sigcont', 'sigstop', 'sigtstp', 'sigttin', 'sigttou', 'sigurg', 'sigxcpu', 'sigxfsz', 'sigvtalrm', 'sigprof', 'sigwinch', 'sigpoll', 'sigsys']);
  dart.defineExtensionMethods(io.ProcessSignal, ['toString']);
  dart.defineLazy(io.ProcessSignal, {
    /*io.ProcessSignal.sighup*/get sighup() {
      return C[194] || CT.C194;
    },
    /*io.ProcessSignal.sigint*/get sigint() {
      return C[195] || CT.C195;
    },
    /*io.ProcessSignal.sigquit*/get sigquit() {
      return C[196] || CT.C196;
    },
    /*io.ProcessSignal.sigill*/get sigill() {
      return C[197] || CT.C197;
    },
    /*io.ProcessSignal.sigtrap*/get sigtrap() {
      return C[198] || CT.C198;
    },
    /*io.ProcessSignal.sigabrt*/get sigabrt() {
      return C[199] || CT.C199;
    },
    /*io.ProcessSignal.sigbus*/get sigbus() {
      return C[200] || CT.C200;
    },
    /*io.ProcessSignal.sigfpe*/get sigfpe() {
      return C[201] || CT.C201;
    },
    /*io.ProcessSignal.sigkill*/get sigkill() {
      return C[202] || CT.C202;
    },
    /*io.ProcessSignal.sigusr1*/get sigusr1() {
      return C[203] || CT.C203;
    },
    /*io.ProcessSignal.sigsegv*/get sigsegv() {
      return C[204] || CT.C204;
    },
    /*io.ProcessSignal.sigusr2*/get sigusr2() {
      return C[205] || CT.C205;
    },
    /*io.ProcessSignal.sigpipe*/get sigpipe() {
      return C[206] || CT.C206;
    },
    /*io.ProcessSignal.sigalrm*/get sigalrm() {
      return C[207] || CT.C207;
    },
    /*io.ProcessSignal.sigterm*/get sigterm() {
      return C[193] || CT.C193;
    },
    /*io.ProcessSignal.sigchld*/get sigchld() {
      return C[208] || CT.C208;
    },
    /*io.ProcessSignal.sigcont*/get sigcont() {
      return C[209] || CT.C209;
    },
    /*io.ProcessSignal.sigstop*/get sigstop() {
      return C[210] || CT.C210;
    },
    /*io.ProcessSignal.sigtstp*/get sigtstp() {
      return C[211] || CT.C211;
    },
    /*io.ProcessSignal.sigttin*/get sigttin() {
      return C[212] || CT.C212;
    },
    /*io.ProcessSignal.sigttou*/get sigttou() {
      return C[213] || CT.C213;
    },
    /*io.ProcessSignal.sigurg*/get sigurg() {
      return C[214] || CT.C214;
    },
    /*io.ProcessSignal.sigxcpu*/get sigxcpu() {
      return C[215] || CT.C215;
    },
    /*io.ProcessSignal.sigxfsz*/get sigxfsz() {
      return C[216] || CT.C216;
    },
    /*io.ProcessSignal.sigvtalrm*/get sigvtalrm() {
      return C[217] || CT.C217;
    },
    /*io.ProcessSignal.sigprof*/get sigprof() {
      return C[218] || CT.C218;
    },
    /*io.ProcessSignal.sigwinch*/get sigwinch() {
      return C[219] || CT.C219;
    },
    /*io.ProcessSignal.sigpoll*/get sigpoll() {
      return C[220] || CT.C220;
    },
    /*io.ProcessSignal.sigsys*/get sigsys() {
      return C[221] || CT.C221;
    }
  }, false);
  var message$4 = dart.privateName(io, "SignalException.message");
  var osError$0 = dart.privateName(io, "SignalException.osError");
  io.SignalException = class SignalException extends core.Object {
    get message() {
      return this[message$4];
    }
    set message(value) {
      super.message = value;
    }
    get osError() {
      return this[osError$0];
    }
    set osError(value) {
      super.osError = value;
    }
    static ['_#new#tearOff'](message, osError = null) {
      if (message == null) dart.nullFailed(I[135], 644, 30, "message");
      return new io.SignalException.new(message, osError);
    }
    toString() {
      let msg = "";
      if (this.osError != null) {
        msg = ", osError: " + dart.str(this.osError);
      }
      return "SignalException: " + dart.str(this.message) + msg;
    }
  };
  (io.SignalException.new = function(message, osError = null) {
    if (message == null) dart.nullFailed(I[135], 644, 30, "message");
    this[message$4] = message;
    this[osError$0] = osError;
    ;
  }).prototype = io.SignalException.prototype;
  dart.addRtiResources(io.SignalException, ["io|SignalException", "io|IOException", "core|Exception"]);
  dart.setLibraryUri(io.SignalException, I[119]);
  dart.setFieldSignature(io.SignalException, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    osError: {type: T$.dynamic(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.SignalException))));
  dart.defineExtensionMethods(io.SignalException, ['toString']);
  var executable$ = dart.privateName(io, "ProcessException.executable");
  var $arguments$ = dart.privateName(io, "ProcessException.arguments");
  var message$5 = dart.privateName(io, "ProcessException.message");
  var errorCode$1 = dart.privateName(io, "ProcessException.errorCode");
  io.ProcessException = class ProcessException extends core.Object {
    get executable() {
      return this[executable$];
    }
    set executable(value) {
      super.executable = value;
    }
    get arguments() {
      return this[$arguments$];
    }
    set arguments(value) {
      super.arguments = value;
    }
    get message() {
      return this[message$5];
    }
    set message(value) {
      super.message = value;
    }
    get errorCode() {
      return this[errorCode$1];
    }
    set errorCode(value) {
      super.errorCode = value;
    }
    static ['_#new#tearOff'](executable, $arguments, message = "", errorCode = 0) {
      if (executable == null) dart.nullFailed(I[135], 672, 31, "executable");
      if ($arguments == null) dart.nullFailed(I[135], 672, 48, "arguments");
      if (message == null) dart.nullFailed(I[135], 673, 13, "message");
      if (errorCode == null) dart.nullFailed(I[135], 673, 32, "errorCode");
      return new io.ProcessException.new(executable, $arguments, message, errorCode);
    }
    toString() {
      let args = this.arguments[$join](" ");
      return "ProcessException: " + dart.str(this.message) + "\n  Command: " + dart.str(this.executable) + " " + dart.str(args);
    }
  };
  (io.ProcessException.new = function(executable, $arguments, message = "", errorCode = 0) {
    if (executable == null) dart.nullFailed(I[135], 672, 31, "executable");
    if ($arguments == null) dart.nullFailed(I[135], 672, 48, "arguments");
    if (message == null) dart.nullFailed(I[135], 673, 13, "message");
    if (errorCode == null) dart.nullFailed(I[135], 673, 32, "errorCode");
    this[executable$] = executable;
    this[$arguments$] = $arguments;
    this[message$5] = message;
    this[errorCode$1] = errorCode;
    ;
  }).prototype = io.ProcessException.prototype;
  dart.addRtiResources(io.ProcessException, ["io|ProcessException", "io|IOException", "core|Exception"]);
  dart.setLibraryUri(io.ProcessException, I[119]);
  dart.setFieldSignature(io.ProcessException, () => dart.global.Object.setPrototypeOf({
    executable: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    arguments: {type: T$0.ListOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    errorCode: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.ProcessException))));
  dart.defineExtensionMethods(io.ProcessException, ['toString']);
  var _socket$ = dart.privateName(io, "_socket");
  var _owner = dart.privateName(io, "_owner");
  io.SecureServerSocket = class SecureServerSocket extends G.StreamOfSecureSocket() {
    static ['_#_#tearOff'](_socket) {
      if (_socket == null) dart.nullFailed(I[136], 14, 29, "_socket");
      return new io.SecureServerSocket.__(_socket);
    }
    static bind(address, port, context, opts) {
      if (port == null) dart.nullFailed(I[136], 67, 20, "port");
      let backlog = opts && 'backlog' in opts ? opts.backlog : 0;
      if (backlog == null) dart.nullFailed(I[136], 68, 12, "backlog");
      let v6Only = opts && 'v6Only' in opts ? opts.v6Only : false;
      if (v6Only == null) dart.nullFailed(I[136], 69, 12, "v6Only");
      let requestClientCertificate = opts && 'requestClientCertificate' in opts ? opts.requestClientCertificate : false;
      if (requestClientCertificate == null) dart.nullFailed(I[136], 70, 12, "requestClientCertificate");
      let requireClientCertificate = opts && 'requireClientCertificate' in opts ? opts.requireClientCertificate : false;
      if (requireClientCertificate == null) dart.nullFailed(I[136], 71, 12, "requireClientCertificate");
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      let shared = opts && 'shared' in opts ? opts.shared : false;
      if (shared == null) dart.nullFailed(I[136], 73, 12, "shared");
      return io.RawSecureServerSocket.bind(address, port, context, {backlog: backlog, v6Only: v6Only, requestClientCertificate: requestClientCertificate, requireClientCertificate: requireClientCertificate, supportedProtocols: supportedProtocols, shared: shared}).then(T$3.SecureServerSocket(), dart.fn(serverSocket => {
        if (serverSocket == null) dart.nullFailed(I[136], 81, 16, "serverSocket");
        return new io.SecureServerSocket.__(serverSocket);
      }, T$3.RawSecureServerSocketToSecureServerSocket()));
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      return this[_socket$].map(T$3.SecureSocket(), dart.fn(rawSocket => {
        if (rawSocket == null) dart.nullFailed(I[136], 86, 25, "rawSocket");
        return io.SecureSocket.__(rawSocket);
      }, T$3.RawSecureSocketToSecureSocket())).listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    get port() {
      return this[_socket$].port;
    }
    get address() {
      return this[_socket$].address;
    }
    close() {
      return this[_socket$].close().then(T$3.SecureServerSocket(), dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[136], 103, 63, "_");
        return this;
      }, T$3.RawSecureServerSocketToSecureServerSocket()));
    }
    set [_owner](owner) {
      this[_socket$][_owner] = owner;
    }
  };
  (io.SecureServerSocket.__ = function(_socket) {
    if (_socket == null) dart.nullFailed(I[136], 14, 29, "_socket");
    this[_socket$] = _socket;
    this.$ti = this.$ti || T$3.SecureServerSocket();
    dart.global.Object.getPrototypeOf(io.SecureServerSocket).new.call(this);
    ;
  }).prototype = io.SecureServerSocket.prototype;
  dart.addRtiResources(io.SecureServerSocket, ["io|SecureServerSocket", "_http|ServerSocketBase", "async|Stream"]);
  dart.setMethodSignature(io.SecureServerSocket, () => dart.global.Object.setPrototypeOf({
    listen: T$3.Fn__ToStreamSubscriptionOfSecureSocket(),
    close: T$3.VoidToFutureOfSecureServerSocket()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io.SecureServerSocket))));
  dart.setStaticMethodSignature(io.SecureServerSocket, () => ['bind']);
  dart.setGetterSignature(io.SecureServerSocket, () => dart.global.Object.setPrototypeOf({
    port: T$.int(),
    address: T$3.InternetAddress()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io.SecureServerSocket))));
  dart.setSetterSignature(io.SecureServerSocket, () => dart.global.Object.setPrototypeOf({[_owner]: T$.dynamic()}, dart.getSetters(dart.global.Object.getPrototypeOf(io.SecureServerSocket))));
  dart.setLibraryUri(io.SecureServerSocket, I[119]);
  dart.setFieldSignature(io.SecureServerSocket, () => dart.global.Object.setPrototypeOf({[_socket$]: {type: T$3.RawSecureServerSocket(), isConst: false, isFinal: true, libraryUri: I[119]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.SecureServerSocket))));
  var requestClientCertificate$ = dart.privateName(io, "RawSecureServerSocket.requestClientCertificate");
  var requireClientCertificate$ = dart.privateName(io, "RawSecureServerSocket.requireClientCertificate");
  var supportedProtocols$ = dart.privateName(io, "RawSecureServerSocket.supportedProtocols");
  var __RawSecureServerSocket__controller = dart.privateName(io, "_#RawSecureServerSocket#_controller");
  var __RawSecureServerSocket__controller_isSet = dart.privateName(io, "_#RawSecureServerSocket#_controller#isSet");
  var _subscription$ = dart.privateName(io, "_subscription");
  var _context$ = dart.privateName(io, "_context");
  var _onSubscriptionStateChange = dart.privateName(io, "_onSubscriptionStateChange");
  var _onPauseStateChange = dart.privateName(io, "_onPauseStateChange");
  var _onData$0 = dart.privateName(io, "_onData");
  io.RawSecureServerSocket = class RawSecureServerSocket extends G.StreamOfRawSecureSocket() {
    get requestClientCertificate() {
      return this[requestClientCertificate$];
    }
    set requestClientCertificate(value) {
      super.requestClientCertificate = value;
    }
    get requireClientCertificate() {
      return this[requireClientCertificate$];
    }
    set requireClientCertificate(value) {
      super.requireClientCertificate = value;
    }
    get supportedProtocols() {
      return this[supportedProtocols$];
    }
    set supportedProtocols(value) {
      super.supportedProtocols = value;
    }
    get [_controller]() {
      let t$36178;
      return dart.test(this[__RawSecureServerSocket__controller_isSet]) ? (t$36178 = this[__RawSecureServerSocket__controller], t$36178) : dart.throw(new _internal.LateError.fieldNI("_controller"));
    }
    set [_controller](_controller$35param) {
      if (_controller$35param == null) dart.nullFailed(I[136], 115, 42, "_controller#param");
      this[__RawSecureServerSocket__controller_isSet] = true;
      this[__RawSecureServerSocket__controller] = _controller$35param;
    }
    static ['_#_#tearOff'](_socket, _context, requestClientCertificate, requireClientCertificate, supportedProtocols) {
      if (_socket == null) dart.nullFailed(I[136], 124, 12, "_socket");
      if (requestClientCertificate == null) dart.nullFailed(I[136], 126, 12, "requestClientCertificate");
      if (requireClientCertificate == null) dart.nullFailed(I[136], 127, 12, "requireClientCertificate");
      return new io.RawSecureServerSocket.__(_socket, _context, requestClientCertificate, requireClientCertificate, supportedProtocols);
    }
    static bind(address, port, context, opts) {
      if (port == null) dart.nullFailed(I[136], 187, 20, "port");
      let backlog = opts && 'backlog' in opts ? opts.backlog : 0;
      if (backlog == null) dart.nullFailed(I[136], 188, 12, "backlog");
      let v6Only = opts && 'v6Only' in opts ? opts.v6Only : false;
      if (v6Only == null) dart.nullFailed(I[136], 189, 12, "v6Only");
      let requestClientCertificate = opts && 'requestClientCertificate' in opts ? opts.requestClientCertificate : false;
      if (requestClientCertificate == null) dart.nullFailed(I[136], 190, 12, "requestClientCertificate");
      let requireClientCertificate = opts && 'requireClientCertificate' in opts ? opts.requireClientCertificate : false;
      if (requireClientCertificate == null) dart.nullFailed(I[136], 191, 12, "requireClientCertificate");
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      let shared = opts && 'shared' in opts ? opts.shared : false;
      if (shared == null) dart.nullFailed(I[136], 193, 12, "shared");
      return io.RawServerSocket.bind(address, port, {backlog: backlog, v6Only: v6Only, shared: shared}).then(T$3.RawSecureServerSocket(), dart.fn(serverSocket => {
        if (serverSocket == null) dart.nullFailed(I[136], 196, 16, "serverSocket");
        return new io.RawSecureServerSocket.__(serverSocket, context, requestClientCertificate, requireClientCertificate, supportedProtocols);
      }, T$3.RawServerSocketToRawSecureServerSocket()));
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      return this[_controller].stream.listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    get port() {
      return this[_socket$].port;
    }
    get address() {
      return this[_socket$].address;
    }
    close() {
      this[_closed] = true;
      return this[_socket$].close().then(T$3.RawSecureServerSocket(), dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[136], 222, 34, "_");
        return this;
      }, T$3.RawServerSocketToRawSecureServerSocket()));
    }
    [_onData$0](connection) {
      if (connection == null) dart.nullFailed(I[136], 225, 26, "connection");
      let remotePort = null;
      try {
        remotePort = connection.remotePort;
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          return;
        } else
          throw t$36$35e;
      }
      io._RawSecureSocket.connect(connection.address, T$.int()[_as](remotePort), true, connection, {context: this[_context$], requestClientCertificate: this.requestClientCertificate, requireClientCertificate: this.requireClientCertificate, supportedProtocols: this.supportedProtocols}).then(T$.Null(), dart.fn(secureConnection => {
        if (secureConnection == null) dart.nullFailed(I[136], 239, 32, "secureConnection");
        if (dart.test(this[_closed])) {
          secureConnection.close();
        } else {
          this[_controller].add(secureConnection);
        }
      }, T$3.RawSecureSocketToNull())).catchError(dart.fn((e, s) => {
        if (!dart.test(this[_closed])) {
          this[_controller].addError(T$.Object()[_as](e), T$.StackTraceN()[_as](s));
        }
      }, T$.dynamicAnddynamicToNull()));
    }
    [_onPauseStateChange]() {
      if (dart.test(this[_controller].isPaused)) {
        dart.nullCheck(this[_subscription$]).pause();
      } else {
        dart.nullCheck(this[_subscription$]).resume();
      }
    }
    [_onSubscriptionStateChange]() {
      if (dart.test(this[_controller].hasListener)) {
        this[_subscription$] = this[_socket$].listen(dart.bind(this, _onData$0), {onError: dart.bind(this[_controller], 'addError'), onDone: dart.bind(this[_controller], 'close')});
      } else {
        this.close();
      }
    }
    set [_owner](owner) {
      T$3._RawSocketBase()[_as](this[_socket$])[_owner] = owner;
    }
  };
  (io.RawSecureServerSocket.__ = function(_socket, _context, requestClientCertificate, requireClientCertificate, supportedProtocols) {
    if (_socket == null) dart.nullFailed(I[136], 124, 12, "_socket");
    if (requestClientCertificate == null) dart.nullFailed(I[136], 126, 12, "requestClientCertificate");
    if (requireClientCertificate == null) dart.nullFailed(I[136], 127, 12, "requireClientCertificate");
    this[__RawSecureServerSocket__controller] = null;
    this[__RawSecureServerSocket__controller_isSet] = false;
    this[_subscription$] = null;
    this[_closed] = false;
    this[_socket$] = _socket;
    this[_context$] = _context;
    this[requestClientCertificate$] = requestClientCertificate;
    this[requireClientCertificate$] = requireClientCertificate;
    this[supportedProtocols$] = supportedProtocols;
    this.$ti = this.$ti || T$3.RawSecureServerSocket();
    dart.global.Object.getPrototypeOf(io.RawSecureServerSocket).new.call(this);
    this[_controller] = G.StreamControllerOfRawSecureSocket().new({sync: true, onListen: dart.bind(this, _onSubscriptionStateChange), onPause: dart.bind(this, _onPauseStateChange), onResume: dart.bind(this, _onPauseStateChange), onCancel: dart.bind(this, _onSubscriptionStateChange)});
  }).prototype = io.RawSecureServerSocket.prototype;
  dart.addRtiResources(io.RawSecureServerSocket, ["io|RawSecureServerSocket"]);
  dart.setMethodSignature(io.RawSecureServerSocket, () => dart.global.Object.setPrototypeOf({
    listen: T$3.Fn__ToStreamSubscriptionOfRawSecureSocket(),
    close: T$3.VoidToFutureOfRawSecureServerSocket(),
    [_onData$0]: T$3.RawSocketTovoid(),
    [_onPauseStateChange]: T$.VoidTovoid(),
    [_onSubscriptionStateChange]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io.RawSecureServerSocket))));
  dart.setStaticMethodSignature(io.RawSecureServerSocket, () => ['bind']);
  dart.setGetterSignature(io.RawSecureServerSocket, () => dart.global.Object.setPrototypeOf({
    [_controller]: T$3.StreamControllerOfRawSecureSocket(),
    port: T$.int(),
    address: T$3.InternetAddress()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io.RawSecureServerSocket))));
  dart.setSetterSignature(io.RawSecureServerSocket, () => dart.global.Object.setPrototypeOf({
    [_controller]: T$3.StreamControllerOfRawSecureSocket(),
    [_owner]: T$.dynamic()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(io.RawSecureServerSocket))));
  dart.setLibraryUri(io.RawSecureServerSocket, I[119]);
  dart.setFieldSignature(io.RawSecureServerSocket, () => dart.global.Object.setPrototypeOf({
    [_socket$]: {type: T$3.RawServerSocket(), isConst: false, isFinal: true, libraryUri: I[119]},
    [__RawSecureServerSocket__controller]: {type: T$3.StreamControllerNOfRawSecureSocket(), isConst: false, isFinal: false, libraryUri: I[39]},
    [__RawSecureServerSocket__controller_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_subscription$]: {type: T$3.StreamSubscriptionNOfRawSocket(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_context$]: {type: T$3.SecurityContextN(), isConst: false, isFinal: true, libraryUri: I[119]},
    requestClientCertificate: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    requireClientCertificate: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    supportedProtocols: {type: T$.ListNOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_closed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.RawSecureServerSocket))));
  var _onCancel$ = dart.privateName(io, "_onCancel");
  var _detachRaw = dart.privateName(io, "_detachRaw");
  io.SecureSocket = class SecureSocket extends core.Object {
    static ['_#_#tearOff'](rawSocket) {
      if (rawSocket == null) dart.nullFailed(I[121], 554, 42, "rawSocket");
      return io.SecureSocket.__(rawSocket);
    }
    static connect(host, port, opts) {
      if (port == null) dart.nullFailed(I[137], 54, 49, "port");
      let context = opts && 'context' in opts ? opts.context : null;
      let onBadCertificate = opts && 'onBadCertificate' in opts ? opts.onBadCertificate : null;
      let keyLog = opts && 'keyLog' in opts ? opts.keyLog : null;
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      let timeout = opts && 'timeout' in opts ? opts.timeout : null;
      return io.RawSecureSocket.connect(host, port, {context: context, onBadCertificate: onBadCertificate, keyLog: keyLog, supportedProtocols: supportedProtocols, timeout: timeout}).then(T$3.SecureSocket(), dart.fn(rawSocket => {
        if (rawSocket == null) dart.nullFailed(I[137], 66, 16, "rawSocket");
        return io.SecureSocket.__(rawSocket);
      }, T$3.RawSecureSocketToSecureSocket()));
    }
    static startConnect(host, port, opts) {
      if (port == null) dart.nullFailed(I[137], 72, 70, "port");
      let context = opts && 'context' in opts ? opts.context : null;
      let onBadCertificate = opts && 'onBadCertificate' in opts ? opts.onBadCertificate : null;
      let keyLog = opts && 'keyLog' in opts ? opts.keyLog : null;
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      return io.RawSecureSocket.startConnect(host, port, {context: context, onBadCertificate: onBadCertificate, keyLog: keyLog, supportedProtocols: supportedProtocols}).then(T$3.ConnectionTaskOfSecureSocket(), dart.fn(rawState => {
        if (rawState == null) dart.nullFailed(I[137], 82, 16, "rawState");
        let socket = rawState.socket.then(T$3.SecureSocket(), dart.fn(rawSocket => {
          if (rawSocket == null) dart.nullFailed(I[137], 84, 33, "rawSocket");
          return io.SecureSocket.__(rawSocket);
        }, T$3.RawSecureSocketToSecureSocket()));
        return new (G.ConnectionTaskOfSecureSocket()).__(socket, rawState[_onCancel$]);
      }, T$3.ConnectionTaskOfRawSecureSocketToConnectionTaskOfSecureSocket()));
    }
    static secure(socket, opts) {
      if (socket == null) dart.nullFailed(I[137], 141, 45, "socket");
      let host = opts && 'host' in opts ? opts.host : null;
      let context = opts && 'context' in opts ? opts.context : null;
      let onBadCertificate = opts && 'onBadCertificate' in opts ? opts.onBadCertificate : null;
      let keyLog = opts && 'keyLog' in opts ? opts.keyLog : null;
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      return socket[_detachRaw]().then(T$3.RawSecureSocket(), dart.fn(detachedRaw => {
        if (detachedRaw == null) dart.nullFailed(I[137], 147, 55, "detachedRaw");
        return io.RawSecureSocket.secure(T$3.RawSocket()[_as](detachedRaw[$_get](0)), {subscription: T$3.StreamSubscriptionNOfRawSocketEvent()[_as](detachedRaw[$_get](1)), host: host, context: context, onBadCertificate: onBadCertificate, keyLog: keyLog, supportedProtocols: supportedProtocols});
      }, T$3.ListOfObjectNToFutureOfRawSecureSocket())).then(T$3.SecureSocket(), dart.fn(raw => {
        if (raw == null) dart.nullFailed(I[137], 155, 28, "raw");
        return io.SecureSocket.__(raw);
      }, T$3.RawSecureSocketToSecureSocket()));
    }
    static secureServer(socket, context, opts) {
      if (socket == null) dart.nullFailed(I[137], 179, 14, "socket");
      let bufferedData = opts && 'bufferedData' in opts ? opts.bufferedData : null;
      let requestClientCertificate = opts && 'requestClientCertificate' in opts ? opts.requestClientCertificate : false;
      if (requestClientCertificate == null) dart.nullFailed(I[137], 181, 12, "requestClientCertificate");
      let requireClientCertificate = opts && 'requireClientCertificate' in opts ? opts.requireClientCertificate : false;
      if (requireClientCertificate == null) dart.nullFailed(I[137], 182, 12, "requireClientCertificate");
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      return socket[_detachRaw]().then(T$3.RawSecureSocket(), dart.fn(detachedRaw => {
        if (detachedRaw == null) dart.nullFailed(I[137], 184, 55, "detachedRaw");
        return io.RawSecureSocket.secureServer(T$3.RawSocket()[_as](detachedRaw[$_get](0)), context, {subscription: T$3.StreamSubscriptionNOfRawSocketEvent()[_as](detachedRaw[$_get](1)), bufferedData: bufferedData, requestClientCertificate: requestClientCertificate, requireClientCertificate: requireClientCertificate, supportedProtocols: supportedProtocols});
      }, T$3.ListOfObjectNToFutureOfRawSecureSocket())).then(T$3.SecureSocket(), dart.fn(raw => {
        if (raw == null) dart.nullFailed(I[137], 191, 28, "raw");
        return io.SecureSocket.__(raw);
      }, T$3.RawSecureSocketToSecureSocket()));
    }
  };
  (io.SecureSocket[dart.mixinNew] = function() {
  }).prototype = io.SecureSocket.prototype;
  dart.addRtiResources(io.SecureSocket, ["io|SecureSocket", "io|Socket", "async|Stream", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setStaticMethodSignature(io.SecureSocket, () => ['__', 'connect', 'startConnect', 'secure', 'secureServer']);
  dart.setLibraryUri(io.SecureSocket, I[119]);
  io.RawSecureSocket = class RawSecureSocket extends core.Object {
    static connect(host, port, opts) {
      if (port == null) dart.nullFailed(I[137], 275, 52, "port");
      let context = opts && 'context' in opts ? opts.context : null;
      let onBadCertificate = opts && 'onBadCertificate' in opts ? opts.onBadCertificate : null;
      let keyLog = opts && 'keyLog' in opts ? opts.keyLog : null;
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      let timeout = opts && 'timeout' in opts ? opts.timeout : null;
      io._RawSecureSocket._verifyFields(host, port, false, false);
      return io.RawSocket.connect(host, port, {timeout: timeout}).then(T$3.RawSecureSocket(), dart.fn(socket => {
        if (socket == null) dart.nullFailed(I[137], 282, 66, "socket");
        return io.RawSecureSocket.secure(socket, {context: context, onBadCertificate: onBadCertificate, keyLog: keyLog, supportedProtocols: supportedProtocols});
      }, T$3.RawSocketToFutureOfRawSecureSocket()));
    }
    static startConnect(host, port, opts) {
      if (port == null) dart.nullFailed(I[137], 294, 73, "port");
      let context = opts && 'context' in opts ? opts.context : null;
      let onBadCertificate = opts && 'onBadCertificate' in opts ? opts.onBadCertificate : null;
      let keyLog = opts && 'keyLog' in opts ? opts.keyLog : null;
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      return io.RawSocket.startConnect(host, port).then(T$3.ConnectionTaskOfRawSecureSocket(), dart.fn(rawState => {
        if (rawState == null) dart.nullFailed(I[137], 300, 42, "rawState");
        let socket = rawState.socket.then(T$3.RawSecureSocket(), dart.fn(rawSocket => {
          if (rawSocket == null) dart.nullFailed(I[137], 301, 62, "rawSocket");
          return io.RawSecureSocket.secure(rawSocket, {context: context, onBadCertificate: onBadCertificate, keyLog: keyLog, supportedProtocols: supportedProtocols});
        }, T$3.RawSocketToFutureOfRawSecureSocket()));
        return new (G.ConnectionTaskOfRawSecureSocket()).__(socket, rawState[_onCancel$]);
      }, T$3.ConnectionTaskOfRawSocketToConnectionTaskOfRawSecureSocket()));
    }
    static secure(socket, opts) {
      if (socket == null) dart.nullFailed(I[137], 364, 51, "socket");
      let subscription = opts && 'subscription' in opts ? opts.subscription : null;
      let host = opts && 'host' in opts ? opts.host : null;
      let context = opts && 'context' in opts ? opts.context : null;
      let onBadCertificate = opts && 'onBadCertificate' in opts ? opts.onBadCertificate : null;
      let keyLog = opts && 'keyLog' in opts ? opts.keyLog : null;
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      socket.readEventsEnabled = false;
      socket.writeEventsEnabled = false;
      return io._RawSecureSocket.connect(host != null ? host : socket.address.host, socket.port, false, socket, {subscription: subscription, context: context, onBadCertificate: onBadCertificate, keyLog: keyLog, supportedProtocols: supportedProtocols});
    }
    static secureServer(socket, context, opts) {
      if (socket == null) dart.nullFailed(I[137], 405, 17, "socket");
      let subscription = opts && 'subscription' in opts ? opts.subscription : null;
      let bufferedData = opts && 'bufferedData' in opts ? opts.bufferedData : null;
      let requestClientCertificate = opts && 'requestClientCertificate' in opts ? opts.requestClientCertificate : false;
      if (requestClientCertificate == null) dart.nullFailed(I[137], 408, 12, "requestClientCertificate");
      let requireClientCertificate = opts && 'requireClientCertificate' in opts ? opts.requireClientCertificate : false;
      if (requireClientCertificate == null) dart.nullFailed(I[137], 409, 12, "requireClientCertificate");
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      socket.readEventsEnabled = false;
      socket.writeEventsEnabled = false;
      return io._RawSecureSocket.connect(socket.address, socket.remotePort, true, socket, {context: context, subscription: subscription, bufferedData: bufferedData, requestClientCertificate: requestClientCertificate, requireClientCertificate: requireClientCertificate, supportedProtocols: supportedProtocols});
    }
  };
  (io.RawSecureSocket.new = function() {
    ;
  }).prototype = io.RawSecureSocket.prototype;
  dart.addRtiResources(io.RawSecureSocket, ["io|RawSecureSocket", "io|RawSocket", "async|Stream"]);
  dart.setStaticMethodSignature(io.RawSecureSocket, () => ['connect', 'startConnect', 'secure', 'secureServer']);
  dart.setLibraryUri(io.RawSecureSocket, I[119]);
  io.X509Certificate = class X509Certificate extends core.Object {
    static ['_#_#tearOff']() {
      return io.X509Certificate.__();
    }
  };
  (io.X509Certificate[dart.mixinNew] = function() {
  }).prototype = io.X509Certificate.prototype;
  dart.addRtiResources(io.X509Certificate, ["io|X509Certificate"]);
  dart.setStaticMethodSignature(io.X509Certificate, () => ['__']);
  dart.setLibraryUri(io.X509Certificate, I[119]);
  io._FilterStatus = class _FilterStatus extends core.Object {
    static ['_#new#tearOff']() {
      return new io._FilterStatus.new();
    }
  };
  (io._FilterStatus.new = function() {
    this.progress = false;
    this.readEmpty = true;
    this.writeEmpty = true;
    this.readPlaintextNoLongerEmpty = false;
    this.writePlaintextNoLongerFull = false;
    this.readEncryptedNoLongerFull = false;
    this.writeEncryptedNoLongerEmpty = false;
    ;
  }).prototype = io._FilterStatus.prototype;
  dart.addRtiResources(io._FilterStatus, ["io|_FilterStatus"]);
  dart.setLibraryUri(io._FilterStatus, I[119]);
  dart.setFieldSignature(io._FilterStatus, () => dart.global.Object.setPrototypeOf({
    progress: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    readEmpty: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    writeEmpty: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    readPlaintextNoLongerEmpty: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    writePlaintextNoLongerFull: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    readEncryptedNoLongerFull: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    writeEncryptedNoLongerEmpty: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._FilterStatus))));
  io._RawSocketBase = class _RawSocketBase extends core.Object {};
  (io._RawSocketBase.new = function() {
    ;
  }).prototype = io._RawSocketBase.prototype;
  dart.addRtiResources(io._RawSocketBase, ["io|_RawSocketBase"]);
  dart.setLibraryUri(io._RawSocketBase, I[119]);
  var _handshakeComplete = dart.privateName(io, "_handshakeComplete");
  var ___RawSecureSocket__socketSubscription = dart.privateName(io, "_#_RawSecureSocket#_socketSubscription");
  var ___RawSecureSocket__socketSubscription_isSet = dart.privateName(io, "_#_RawSecureSocket#_socketSubscription#isSet");
  var _bufferedDataIndex = dart.privateName(io, "_bufferedDataIndex");
  var _status = dart.privateName(io, "_status");
  var _writeEventsEnabled = dart.privateName(io, "_writeEventsEnabled");
  var _readEventsEnabled = dart.privateName(io, "_readEventsEnabled");
  var _pauseCount = dart.privateName(io, "_pauseCount");
  var _pendingReadEvent = dart.privateName(io, "_pendingReadEvent");
  var _socketClosedRead = dart.privateName(io, "_socketClosedRead");
  var _socketClosedWrite = dart.privateName(io, "_socketClosedWrite");
  var _closedRead = dart.privateName(io, "_closedRead");
  var _closedWrite = dart.privateName(io, "_closedWrite");
  var _filterStatus = dart.privateName(io, "_filterStatus");
  var _connectPending = dart.privateName(io, "_connectPending");
  var _filterPending = dart.privateName(io, "_filterPending");
  var _filterActive = dart.privateName(io, "_filterActive");
  var _secureFilter = dart.privateName(io, "_secureFilter");
  var _selectedProtocol = dart.privateName(io, "_selectedProtocol");
  var _bufferedData$ = dart.privateName(io, "_bufferedData");
  var _secureHandshakeCompleteHandler = dart.privateName(io, "_secureHandshakeCompleteHandler");
  var _onBadCertificateWrapper = dart.privateName(io, "_onBadCertificateWrapper");
  var _socketSubscription = dart.privateName(io, "_socketSubscription");
  var _eventDispatcher = dart.privateName(io, "_eventDispatcher");
  var _reportError = dart.privateName(io, "_reportError");
  var _doneHandler = dart.privateName(io, "_doneHandler");
  var _closedReadEventSent = dart.privateName(io, "_closedReadEventSent");
  var _secureHandshake = dart.privateName(io, "_secureHandshake");
  var _sendWriteEvent = dart.privateName(io, "_sendWriteEvent");
  var _completeCloseCompleter = dart.privateName(io, "_completeCloseCompleter");
  var _close$ = dart.privateName(io, "_close");
  var _scheduleReadEvent = dart.privateName(io, "_scheduleReadEvent");
  var _scheduleFilter = dart.privateName(io, "_scheduleFilter");
  var _readHandler = dart.privateName(io, "_readHandler");
  var _writeHandler = dart.privateName(io, "_writeHandler");
  var _closeHandler = dart.privateName(io, "_closeHandler");
  var _readSocket = dart.privateName(io, "_readSocket");
  var _writeSocket = dart.privateName(io, "_writeSocket");
  var _tryFilter = dart.privateName(io, "_tryFilter");
  var _pushAllFilterStages = dart.privateName(io, "_pushAllFilterStages");
  var _readSocketOrBufferedData = dart.privateName(io, "_readSocketOrBufferedData");
  var _sendReadEvent = dart.privateName(io, "_sendReadEvent");
  io._RawSecureSocket = class _RawSecureSocket extends G.StreamOfRawSocketEvent() {
    static _isBufferEncrypted(identifier) {
      if (identifier == null) dart.nullFailed(I[137], 506, 38, "identifier");
      return dart.notNull(identifier) >= 2;
    }
    get [_socketSubscription]() {
      let t$36181;
      return dart.test(this[___RawSecureSocket__socketSubscription_isSet]) ? (t$36181 = this[___RawSecureSocket__socketSubscription], t$36181) : dart.throw(new _internal.LateError.fieldNI("_socketSubscription"));
    }
    set [_socketSubscription](_socketSubscription$35param) {
      if (_socketSubscription$35param == null) dart.nullFailed(I[137], 513, 49, "_socketSubscription#param");
      if (dart.test(this[___RawSecureSocket__socketSubscription_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_socketSubscription"));
      else {
        this[___RawSecureSocket__socketSubscription_isSet] = true;
        this[___RawSecureSocket__socketSubscription] = _socketSubscription$35param;
      }
    }
    static connect(host, requestedPort, isServer, socket, opts) {
      let t$36181;
      if (requestedPort == null) dart.nullFailed(I[137], 546, 11, "requestedPort");
      if (isServer == null) dart.nullFailed(I[137], 547, 12, "isServer");
      if (socket == null) dart.nullFailed(I[137], 548, 17, "socket");
      let context = opts && 'context' in opts ? opts.context : null;
      let subscription = opts && 'subscription' in opts ? opts.subscription : null;
      let bufferedData = opts && 'bufferedData' in opts ? opts.bufferedData : null;
      let requestClientCertificate = opts && 'requestClientCertificate' in opts ? opts.requestClientCertificate : false;
      if (requestClientCertificate == null) dart.nullFailed(I[137], 552, 12, "requestClientCertificate");
      let requireClientCertificate = opts && 'requireClientCertificate' in opts ? opts.requireClientCertificate : false;
      if (requireClientCertificate == null) dart.nullFailed(I[137], 553, 12, "requireClientCertificate");
      let onBadCertificate = opts && 'onBadCertificate' in opts ? opts.onBadCertificate : null;
      let keyLog = opts && 'keyLog' in opts ? opts.keyLog : null;
      let supportedProtocols = opts && 'supportedProtocols' in opts ? opts.supportedProtocols : null;
      io._RawSecureSocket._verifyFields(host, requestedPort, requestClientCertificate, requireClientCertificate);
      if (T$3.InternetAddress()[_is](host)) host = host.host;
      let address = socket.address;
      if (host != null) {
        address = io.InternetAddress._cloneWithNewHost(address, T$.String()[_as](host));
      }
      return new io._RawSecureSocket.new(address, requestedPort, isServer, (t$36181 = context, t$36181 == null ? io.SecurityContext.defaultContext : t$36181), socket, subscription, bufferedData, requestClientCertificate, requireClientCertificate, onBadCertificate, keyLog, supportedProtocols)[_handshakeComplete].future;
    }
    static ['_#new#tearOff'](address, requestedPort, isServer, context, _socket, subscription, _bufferedData, requestClientCertificate, requireClientCertificate, onBadCertificate, keyLog, supportedProtocols) {
      if (address == null) dart.nullFailed(I[137], 582, 12, "address");
      if (requestedPort == null) dart.nullFailed(I[137], 583, 11, "requestedPort");
      if (isServer == null) dart.nullFailed(I[137], 584, 12, "isServer");
      if (context == null) dart.nullFailed(I[137], 585, 12, "context");
      if (_socket == null) dart.nullFailed(I[137], 586, 12, "_socket");
      if (requestClientCertificate == null) dart.nullFailed(I[137], 589, 12, "requestClientCertificate");
      if (requireClientCertificate == null) dart.nullFailed(I[137], 590, 12, "requireClientCertificate");
      return new io._RawSecureSocket.new(address, requestedPort, isServer, context, _socket, subscription, _bufferedData, requestClientCertificate, requireClientCertificate, onBadCertificate, keyLog, supportedProtocols);
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      this[_sendWriteEvent]();
      return this[_controller].stream.listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    static _verifyFields(host, requestedPort, requestClientCertificate, requireClientCertificate) {
      if (requestedPort == null) dart.nullFailed(I[137], 671, 39, "requestedPort");
      if (requestClientCertificate == null) dart.nullFailed(I[137], 672, 12, "requestClientCertificate");
      if (requireClientCertificate == null) dart.nullFailed(I[137], 672, 43, "requireClientCertificate");
      if (!(typeof host == 'string') && !T$3.InternetAddress()[_is](host)) {
        dart.throw(new core.ArgumentError.new("host is not a String or an InternetAddress"));
      }
      core.ArgumentError.checkNotNull(T$.int(), requestedPort, "requestedPort");
      if (dart.notNull(requestedPort) < 0 || dart.notNull(requestedPort) > 65535) {
        dart.throw(new core.ArgumentError.new("requestedPort is not in the range 0..65535"));
      }
      core.ArgumentError.checkNotNull(T$.bool(), requestClientCertificate, "requestClientCertificate");
      core.ArgumentError.checkNotNull(T$.bool(), requireClientCertificate, "requireClientCertificate");
    }
    get port() {
      return this[_socket$].port;
    }
    get remoteAddress() {
      return this[_socket$].remoteAddress;
    }
    get remotePort() {
      return this[_socket$].remotePort;
    }
    get [_closedReadEventSent]() {
      return T$3._RawSocketBase()[_as](this[_socket$])[_closedReadEventSent];
    }
    set [_owner](owner) {
      T$3._RawSocketBase()[_as](this[_socket$])[_owner] = owner;
    }
    available() {
      return this[_status] !== 202 ? 0 : dart.nullCheck(dart.nullCheck(this[_secureFilter]).buffers)[$_get](0).length;
    }
    close() {
      this.shutdown(io.SocketDirection.both);
      return this[_closeCompleter].future;
    }
    [_completeCloseCompleter](dummy = null) {
      if (!dart.test(this[_closeCompleter].isCompleted)) this[_closeCompleter].complete(this);
    }
    [_close$]() {
      let t$36181;
      this[_closedWrite] = true;
      this[_closedRead] = true;
      this[_socket$].close().then(T$.void(), dart.bind(this, _completeCloseCompleter));
      this[_socketClosedWrite] = true;
      this[_socketClosedRead] = true;
      if (!dart.test(this[_filterActive]) && this[_secureFilter] != null) {
        dart.nullCheck(this[_secureFilter]).destroy();
        this[_secureFilter] = null;
      }
      t$36181 = this.keyLogPort;
      t$36181 == null ? null : t$36181.close();
      if (this[_socketSubscription] != null) {
        this[_socketSubscription].cancel();
      }
      this[_controller].close();
      this[_status] = 203;
    }
    shutdown(direction) {
      if (direction == null) dart.nullFailed(I[137], 734, 33, "direction");
      if (dart.equals(direction, io.SocketDirection.send) || dart.equals(direction, io.SocketDirection.both)) {
        this[_closedWrite] = true;
        if (dart.test(this[_filterStatus].writeEmpty)) {
          this[_socket$].shutdown(io.SocketDirection.send);
          this[_socketClosedWrite] = true;
          if (dart.test(this[_closedRead])) {
            this[_close$]();
          }
        }
      }
      if (dart.equals(direction, io.SocketDirection.receive) || dart.equals(direction, io.SocketDirection.both)) {
        this[_closedRead] = true;
        this[_socketClosedRead] = true;
        this[_socket$].shutdown(io.SocketDirection.receive);
        if (dart.test(this[_socketClosedWrite])) {
          this[_close$]();
        }
      }
    }
    get writeEventsEnabled() {
      return this[_writeEventsEnabled];
    }
    set writeEventsEnabled(value) {
      if (value == null) dart.nullFailed(I[137], 759, 36, "value");
      this[_writeEventsEnabled] = value;
      if (dart.test(value)) {
        async.Timer.run(dart.fn(() => this[_sendWriteEvent](), T$.VoidTovoid()));
      }
    }
    get readEventsEnabled() {
      return this[_readEventsEnabled];
    }
    set readEventsEnabled(value) {
      if (value == null) dart.nullFailed(I[137], 768, 35, "value");
      this[_readEventsEnabled] = value;
      this[_scheduleReadEvent]();
    }
    read(length = null) {
      if (length != null && dart.notNull(length) < 0) {
        dart.throw(new core.ArgumentError.new("Invalid length parameter in SecureSocket.read (length: " + dart.str(length) + ")"));
      }
      if (dart.test(this[_closedRead])) {
        dart.throw(new io.SocketException.new("Reading from a closed socket"));
      }
      if (this[_status] !== 202) {
        return null;
      }
      let result = dart.nullCheck(dart.nullCheck(this[_secureFilter]).buffers)[$_get](0).read(length);
      this[_scheduleFilter]();
      return result;
    }
    readMessage(count = null) {
      dart.throw(new core.UnsupportedError.new("Message-passing not supported by secure sockets"));
    }
    static _fixOffset(offset) {
      let t$36181;
      t$36181 = offset;
      return t$36181 == null ? 0 : t$36181;
    }
    write(data, offset = 0, bytes = null) {
      if (data == null) dart.nullFailed(I[137], 796, 23, "data");
      if (offset == null) dart.nullFailed(I[137], 796, 34, "offset");
      if (bytes != null && dart.notNull(bytes) < 0) {
        dart.throw(new core.ArgumentError.new("Invalid bytes parameter in SecureSocket.read (bytes: " + dart.str(bytes) + ")"));
      }
      offset = io._RawSecureSocket._fixOffset(offset);
      if (dart.notNull(offset) < 0) {
        dart.throw(new core.ArgumentError.new("Invalid offset parameter in SecureSocket.read (offset: " + dart.str(offset) + ")"));
      }
      if (dart.test(this[_closedWrite])) {
        this[_controller].addError(new io.SocketException.new("Writing to a closed socket"));
        return 0;
      }
      if (this[_status] !== 202) return 0;
      bytes == null ? bytes = dart.notNull(data[$length]) - dart.notNull(offset) : null;
      let written = dart.nullCheck(dart.nullCheck(this[_secureFilter]).buffers)[$_get](1).write(data, offset, bytes);
      if (dart.notNull(written) > 0) {
        this[_filterStatus].writeEmpty = false;
      }
      this[_scheduleFilter]();
      return written;
    }
    sendMessage(controlMessages, data, offset = 0, count = null) {
      if (controlMessages == null) dart.nullFailed(I[137], 823, 46, "controlMessages");
      if (data == null) dart.nullFailed(I[137], 823, 73, "data");
      if (offset == null) dart.nullFailed(I[137], 824, 12, "offset");
      dart.throw(new core.UnsupportedError.new("Message-passing not supported by secure sockets"));
    }
    get peerCertificate() {
      return dart.nullCheck(this[_secureFilter]).peerCertificate;
    }
    get selectedProtocol() {
      return this[_selectedProtocol];
    }
    [_onBadCertificateWrapper](certificate) {
      if (certificate == null) dart.nullFailed(I[137], 832, 49, "certificate");
      if (this.onBadCertificate == null) return false;
      return dart.nullCheck(this.onBadCertificate)(certificate);
    }
    setOption(option, enabled) {
      if (option == null) dart.nullFailed(I[137], 837, 31, "option");
      if (enabled == null) dart.nullFailed(I[137], 837, 44, "enabled");
      return this[_socket$].setOption(option, enabled);
    }
    getRawOption(option) {
      if (option == null) dart.nullFailed(I[137], 841, 42, "option");
      return this[_socket$].getRawOption(option);
    }
    setRawOption(option) {
      if (option == null) dart.nullFailed(I[137], 845, 37, "option");
      this[_socket$].setRawOption(option);
    }
    [_eventDispatcher](event) {
      if (event == null) dart.nullFailed(I[137], 849, 40, "event");
      try {
        if (dart.equals(event, io.RawSocketEvent.read)) {
          this[_readHandler]();
        } else if (dart.equals(event, io.RawSocketEvent.write)) {
          this[_writeHandler]();
        } else if (dart.equals(event, io.RawSocketEvent.readClosed)) {
          this[_closeHandler]();
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stackTrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          this[_reportError](e, stackTrace);
        } else
          throw t$36$35e;
      }
    }
    [_readHandler]() {
      this[_readSocket]();
      this[_scheduleFilter]();
    }
    [_writeHandler]() {
      this[_writeSocket]();
      this[_scheduleFilter]();
    }
    [_doneHandler]() {
      if (dart.test(this[_filterStatus].readEmpty)) {
        this[_close$]();
      }
    }
    [_reportError](e, stackTrace = null) {
      if (this[_status] === 203) {
        return;
      } else if (dart.test(this[_connectPending])) {
        this[_handshakeComplete].completeError(T$.Object()[_as](e), stackTrace);
      } else {
        this[_controller].addError(T$.Object()[_as](e), stackTrace);
      }
      this[_close$]();
    }
    [_closeHandler]() {
      return async.async(T$.void(), (function* _closeHandler() {
        if (this[_status] === 202) {
          if (dart.test(this[_closedRead])) return;
          this[_socketClosedRead] = true;
          if (dart.test(this[_filterStatus].readEmpty)) {
            this[_closedRead] = true;
            this[_controller].add(io.RawSocketEvent.readClosed);
            if (dart.test(this[_socketClosedWrite])) {
              this[_close$]();
            }
          } else {
            yield this[_scheduleFilter]();
          }
        } else if (this[_status] === 201) {
          this[_socketClosedRead] = true;
          if (dart.test(this[_filterStatus].readEmpty)) {
            this[_reportError](new io.HandshakeException.new("Connection terminated during handshake"), null);
          }
        }
      }).bind(this));
    }
    [_secureHandshake]() {
      return async.async(T$.void(), (function* _secureHandshake$() {
        try {
          let needRetryHandshake = (yield dart.nullCheck(this[_secureFilter]).handshake());
          if (dart.test(needRetryHandshake)) {
            yield this[_secureHandshake]();
          } else {
            this[_filterStatus].writeEmpty = false;
            this[_readSocket]();
            this[_writeSocket]();
            yield this[_scheduleFilter]();
          }
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let stackTrace = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            this[_reportError](e, stackTrace);
          } else
            throw t$36$35e;
        }
      }).bind(this));
    }
    renegotiate(opts) {
      let useSessionCache = opts && 'useSessionCache' in opts ? opts.useSessionCache : true;
      if (useSessionCache == null) dart.nullFailed(I[137], 937, 13, "useSessionCache");
      let requestClientCertificate = opts && 'requestClientCertificate' in opts ? opts.requestClientCertificate : false;
      if (requestClientCertificate == null) dart.nullFailed(I[137], 938, 12, "requestClientCertificate");
      let requireClientCertificate = opts && 'requireClientCertificate' in opts ? opts.requireClientCertificate : false;
      if (requireClientCertificate == null) dart.nullFailed(I[137], 939, 12, "requireClientCertificate");
      if (this[_status] !== 202) {
        dart.throw(new io.HandshakeException.new("Called renegotiate on a non-connected socket"));
      }
      this[_status] = 201;
      this[_filterStatus].writeEmpty = false;
      this[_scheduleFilter]();
    }
    [_secureHandshakeCompleteHandler]() {
      this[_status] = 202;
      if (dart.test(this[_connectPending])) {
        this[_connectPending] = false;
        try {
          this[_selectedProtocol] = dart.nullCheck(this[_secureFilter]).selectedProtocol();
          async.Timer.run(dart.fn(() => this[_handshakeComplete].complete(this), T$.VoidTovoid()));
        } catch (t$36$35e) {
          let error = dart.getThrown(t$36$35e);
          let stack = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](error)) {
            this[_handshakeComplete].completeError(error, stack);
          } else
            throw t$36$35e;
        }
      }
    }
    [_onPauseStateChange]() {
      if (dart.test(this[_controller].isPaused)) {
        this[_pauseCount] = dart.notNull(this[_pauseCount]) + 1;
      } else {
        this[_pauseCount] = dart.notNull(this[_pauseCount]) - 1;
        if (this[_pauseCount] === 0) {
          this[_scheduleReadEvent]();
          this[_sendWriteEvent]();
        }
      }
      if (!dart.test(this[_socketClosedRead]) || !dart.test(this[_socketClosedWrite])) {
        if (dart.test(this[_controller].isPaused)) {
          this[_socketSubscription].pause();
        } else {
          this[_socketSubscription].resume();
        }
      }
    }
    [_onSubscriptionStateChange]() {
      if (dart.test(this[_controller].hasListener)) {
      }
    }
    [_scheduleFilter]() {
      this[_filterPending] = true;
      return this[_tryFilter]();
    }
    [_tryFilter]() {
      return async.async(T$.void(), (function* _tryFilter() {
        try {
          while (true) {
            if (this[_status] === 203) {
              return;
            }
            if (!dart.test(this[_filterPending]) || dart.test(this[_filterActive])) {
              return;
            }
            this[_filterActive] = true;
            this[_filterPending] = false;
            this[_filterStatus] = (yield this[_pushAllFilterStages]());
            this[_filterActive] = false;
            if (this[_status] === 203) {
              dart.nullCheck(this[_secureFilter]).destroy();
              this[_secureFilter] = null;
              return;
            }
            this[_socket$].readEventsEnabled = true;
            if (dart.test(this[_filterStatus].writeEmpty) && dart.test(this[_closedWrite]) && !dart.test(this[_socketClosedWrite])) {
              this.shutdown(io.SocketDirection.send);
              if (this[_status] === 203) {
                return;
              }
            }
            if (dart.test(this[_filterStatus].readEmpty) && dart.test(this[_socketClosedRead]) && !dart.test(this[_closedRead])) {
              if (this[_status] === 201) {
                dart.nullCheck(this[_secureFilter]).handshake();
                if (this[_status] === 201) {
                  dart.throw(new io.HandshakeException.new("Connection terminated during handshake"));
                }
              }
              this[_closeHandler]();
            }
            if (this[_status] === 203) {
              return;
            }
            if (dart.test(this[_filterStatus].progress)) {
              this[_filterPending] = true;
              if (dart.test(this[_filterStatus].writeEncryptedNoLongerEmpty)) {
                this[_writeSocket]();
              }
              if (dart.test(this[_filterStatus].writePlaintextNoLongerFull)) {
                this[_sendWriteEvent]();
              }
              if (dart.test(this[_filterStatus].readEncryptedNoLongerFull)) {
                this[_readSocket]();
              }
              if (dart.test(this[_filterStatus].readPlaintextNoLongerEmpty)) {
                this[_scheduleReadEvent]();
              }
              if (this[_status] === 201) {
                yield this[_secureHandshake]();
              }
            }
          }
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let st = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            this[_reportError](e, st);
          } else
            throw t$36$35e;
        }
      }).bind(this));
    }
    [_readSocketOrBufferedData](bytes) {
      if (bytes == null) dart.nullFailed(I[137], 1058, 44, "bytes");
      let bufferedData = this[_bufferedData$];
      if (bufferedData != null) {
        if (dart.notNull(bytes) > dart.notNull(bufferedData[$length]) - dart.notNull(this[_bufferedDataIndex])) {
          bytes = dart.notNull(bufferedData[$length]) - dart.notNull(this[_bufferedDataIndex]);
        }
        let result = bufferedData[$sublist](this[_bufferedDataIndex], dart.notNull(this[_bufferedDataIndex]) + dart.notNull(bytes));
        this[_bufferedDataIndex] = dart.notNull(this[_bufferedDataIndex]) + dart.notNull(bytes);
        if (bufferedData[$length] == this[_bufferedDataIndex]) {
          this[_bufferedData$] = null;
        }
        return result;
      } else if (!dart.test(this[_socketClosedRead])) {
        return this[_socket$].read(bytes);
      } else {
        return null;
      }
    }
    [_readSocket]() {
      if (this[_status] === 203) return;
      let buffer = dart.nullCheck(dart.nullCheck(this[_secureFilter]).buffers)[$_get](2);
      if (dart.notNull(buffer.writeFromSource(dart.bind(this, _readSocketOrBufferedData))) > 0) {
        this[_filterStatus].readEmpty = false;
      } else {
        this[_socket$].readEventsEnabled = false;
      }
    }
    [_writeSocket]() {
      if (dart.test(this[_socketClosedWrite])) return;
      let buffer = dart.nullCheck(dart.nullCheck(this[_secureFilter]).buffers)[$_get](3);
      if (dart.test(buffer.readToSocket(this[_socket$]))) {
        this[_socket$].writeEventsEnabled = true;
      }
    }
    [_scheduleReadEvent]() {
      if (!dart.test(this[_pendingReadEvent]) && dart.test(this[_readEventsEnabled]) && this[_pauseCount] === 0 && this[_secureFilter] != null && !dart.test(dart.nullCheck(dart.nullCheck(this[_secureFilter]).buffers)[$_get](0).isEmpty)) {
        this[_pendingReadEvent] = true;
        async.Timer.run(dart.bind(this, _sendReadEvent));
      }
    }
    [_sendReadEvent]() {
      this[_pendingReadEvent] = false;
      if (this[_status] !== 203 && dart.test(this[_readEventsEnabled]) && this[_pauseCount] === 0 && this[_secureFilter] != null && !dart.test(dart.nullCheck(dart.nullCheck(this[_secureFilter]).buffers)[$_get](0).isEmpty)) {
        this[_controller].add(io.RawSocketEvent.read);
        this[_scheduleReadEvent]();
      }
    }
    [_sendWriteEvent]() {
      if (!dart.test(this[_closedWrite]) && dart.test(this[_writeEventsEnabled]) && this[_pauseCount] === 0 && this[_secureFilter] != null && dart.notNull(dart.nullCheck(dart.nullCheck(this[_secureFilter]).buffers)[$_get](1).free) > 0) {
        this[_writeEventsEnabled] = false;
        this[_controller].add(io.RawSocketEvent.write);
      }
    }
    [_pushAllFilterStages]() {
      return async.async(T$3._FilterStatus(), (function* _pushAllFilterStages() {
        let wasInHandshake = this[_status] !== 202;
        let args = core.List.filled(2 + 4 * 2, null);
        args[$_set](0, dart.nullCheck(this[_secureFilter])[_pointer]());
        args[$_set](1, wasInHandshake);
        let bufs = dart.nullCheck(dart.nullCheck(this[_secureFilter]).buffers);
        for (let i = 0; i < 4; i = i + 1) {
          args[$_set](2 * i + 2, bufs[$_get](i).start);
          args[$_set](2 * i + 3, bufs[$_get](i).end);
        }
        let response = T$.ListOfObjectN()[_as](yield io._IOService._dispatch(43, args));
        if (response[$length] === 2) {
          if (wasInHandshake) {
            this[_reportError](new io.HandshakeException.new(dart.str(response[$_get](1)) + " error " + dart.str(response[$_get](0))), null);
          } else {
            this[_reportError](new io.TlsException.new(dart.str(response[$_get](1)) + " error " + dart.str(response[$_get](0))), null);
          }
        }
        function start(index) {
          if (index == null) dart.nullFailed(I[137], 1159, 19, "index");
          return T$.int()[_as](response[$_get](2 * dart.notNull(index)));
        }
        dart.fn(start, T$.intToint());
        function end(index) {
          if (index == null) dart.nullFailed(I[137], 1160, 17, "index");
          return T$.int()[_as](response[$_get](2 * dart.notNull(index) + 1));
        }
        dart.fn(end, T$.intToint());
        let status = new io._FilterStatus.new();
        status.writeEmpty = dart.test(bufs[$_get](1).isEmpty) && start(3) == end(3);
        if (wasInHandshake) status.writeEmpty = false;
        status.readEmpty = dart.test(bufs[$_get](2).isEmpty) && start(0) == end(0);
        let buffer = bufs[$_get](1);
        let new_start = start(1);
        if (new_start != buffer.start) {
          status.progress = true;
          if (buffer.free === 0) {
            status.writePlaintextNoLongerFull = true;
          }
          buffer.start = new_start;
        }
        buffer = bufs[$_get](2);
        new_start = start(2);
        if (new_start != buffer.start) {
          status.progress = true;
          if (buffer.free === 0) {
            status.readEncryptedNoLongerFull = true;
          }
          buffer.start = new_start;
        }
        buffer = bufs[$_get](3);
        let new_end = end(3);
        if (new_end != buffer.end) {
          status.progress = true;
          if (buffer.length === 0) {
            status.writeEncryptedNoLongerEmpty = true;
          }
          buffer.end = new_end;
        }
        buffer = bufs[$_get](0);
        new_end = end(0);
        if (new_end != buffer.end) {
          status.progress = true;
          if (buffer.length === 0) {
            status.readPlaintextNoLongerEmpty = true;
          }
          buffer.end = new_end;
        }
        return status;
      }).bind(this));
    }
  };
  (io._RawSecureSocket.new = function(address, requestedPort, isServer, context, _socket, subscription, _bufferedData, requestClientCertificate, requireClientCertificate, onBadCertificate, keyLog, supportedProtocols) {
    let t$36179, t$36180;
    if (address == null) dart.nullFailed(I[137], 582, 12, "address");
    if (requestedPort == null) dart.nullFailed(I[137], 583, 11, "requestedPort");
    if (isServer == null) dart.nullFailed(I[137], 584, 12, "isServer");
    if (context == null) dart.nullFailed(I[137], 585, 12, "context");
    if (_socket == null) dart.nullFailed(I[137], 586, 12, "_socket");
    if (requestClientCertificate == null) dart.nullFailed(I[137], 589, 12, "requestClientCertificate");
    if (requireClientCertificate == null) dart.nullFailed(I[137], 590, 12, "requireClientCertificate");
    this[_handshakeComplete] = G.CompleterOf_RawSecureSocket().new();
    this[_controller] = G.StreamControllerOfRawSocketEvent().new({sync: true});
    this[___RawSecureSocket__socketSubscription] = null;
    this[___RawSecureSocket__socketSubscription_isSet] = false;
    this[_bufferedDataIndex] = 0;
    this.keyLogPort = null;
    this[_status] = 201;
    this[_writeEventsEnabled] = true;
    this[_readEventsEnabled] = true;
    this[_pauseCount] = 0;
    this[_pendingReadEvent] = false;
    this[_socketClosedRead] = false;
    this[_socketClosedWrite] = false;
    this[_closedRead] = false;
    this[_closedWrite] = false;
    this[_closeCompleter] = G.CompleterOfRawSecureSocket().new();
    this[_filterStatus] = new io._FilterStatus.new();
    this[_connectPending] = true;
    this[_filterPending] = false;
    this[_filterActive] = false;
    this[_secureFilter] = io._SecureFilter.__();
    this[_selectedProtocol] = null;
    this.address = address;
    this.isServer = isServer;
    this.context = context;
    this[_socket$] = _socket;
    this[_bufferedData$] = _bufferedData;
    this.requestClientCertificate = requestClientCertificate;
    this.requireClientCertificate = requireClientCertificate;
    this.onBadCertificate = onBadCertificate;
    this.keyLog = keyLog;
    this.$ti = this.$ti || T$3._RawSecureSocket();
    dart.global.Object.getPrototypeOf(io._RawSecureSocket).new.call(this);
    t$36179 = this[_controller];
    (() => {
      t$36179.onListen = dart.bind(this, _onSubscriptionStateChange);
      t$36179.onPause = dart.bind(this, _onPauseStateChange);
      t$36179.onResume = dart.bind(this, _onPauseStateChange);
      t$36179.onCancel = dart.bind(this, _onSubscriptionStateChange);
      return t$36179;
    })();
    let secureFilter = dart.nullCheck(this[_secureFilter]);
    secureFilter.init();
    secureFilter.registerHandshakeCompleteCallback(dart.bind(this, _secureHandshakeCompleteHandler));
    if (this.keyLog != null) {
      let port = new isolate._ReceivePort.new();
      port.listen(dart.fn(line => {
        try {
          dart.nullCheck(this.keyLog)(dart.notNull(T$.String()[_as](line)) + "\n");
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            io.stderr.writeln("Failure in keyLog callback:");
            io.stderr.writeln(s);
          } else
            throw t$36$35e;
        }
      }, T$.dynamicTovoid()));
      secureFilter.registerKeyLogPort(port.sendPort);
      this.keyLogPort = port;
    }
    if (this.onBadCertificate != null) {
      secureFilter.registerBadCertificateCallback(dart.bind(this, _onBadCertificateWrapper));
    }
    this[_socket$].readEventsEnabled = true;
    this[_socket$].writeEventsEnabled = false;
    if (subscription == null) {
      this[_socketSubscription] = this[_socket$].listen(dart.bind(this, _eventDispatcher), {onError: dart.bind(this, _reportError), onDone: dart.bind(this, _doneHandler)});
    } else {
      this[_socketSubscription] = subscription;
      if (dart.test(this[_socketSubscription].isPaused)) {
        this[_socket$].close();
        dart.throw(new core.ArgumentError.new("Subscription passed to TLS upgrade is paused"));
      }
      if (dart.test(this[_closedReadEventSent])) {
        this[_eventDispatcher](io.RawSocketEvent.readClosed);
      }
      t$36180 = this[_socketSubscription];
      (() => {
        t$36180.onData(dart.bind(this, _eventDispatcher));
        t$36180.onError(dart.bind(this, _reportError));
        t$36180.onDone(dart.bind(this, _doneHandler));
        return t$36180;
      })();
    }
    try {
      let encodedProtocols = io.SecurityContext._protocolsToLengthEncoding(supportedProtocols);
      secureFilter.connect(this.address.host, this.context, this.isServer, dart.test(this.requestClientCertificate) || dart.test(this.requireClientCertificate), this.requireClientCertificate, encodedProtocols);
      this[_secureHandshake]();
    } catch (t$36$35e) {
      let e = dart.getThrown(t$36$35e);
      let s = dart.stackTrace(t$36$35e);
      if (T$.Object()[_is](e)) {
        this[_reportError](e, s);
      } else
        throw t$36$35e;
    }
  }).prototype = io._RawSecureSocket.prototype;
  dart.addRtiResources(io._RawSecureSocket, ["io|_RawSecureSocket", "io|RawSecureSocket", "io|_RawSocketBase", "io|RawSocket", "async|Stream"]);
  dart.setMethodSignature(io._RawSecureSocket, () => dart.global.Object.setPrototypeOf({
    listen: T$3.Fn__ToStreamSubscriptionOfRawSocketEvent(),
    available: T$.VoidToint(),
    close: T$3.VoidToFutureOfRawSecureSocket(),
    [_completeCloseCompleter]: T$3.RawSocketNTovoid(),
    [_close$]: T$.VoidTovoid(),
    shutdown: T$3.SocketDirectionTovoid(),
    read: T$3.intNToUint8ListN(),
    readMessage: T$3.intNToSocketMessageN(),
    write: T$2.ListOfintAndintAndintNToint(),
    sendMessage: T$3.ListOfSocketControlMessageAndListOfintAndint__Toint(),
    [_onBadCertificateWrapper]: T$3.X509CertificateTobool(),
    setOption: T$3.SocketOptionAndboolTobool(),
    getRawOption: T$3.RawSocketOptionToUint8List(),
    setRawOption: T$3.RawSocketOptionTovoid(),
    [_eventDispatcher]: T$3.RawSocketEventTovoid(),
    [_readHandler]: T$.VoidTovoid(),
    [_writeHandler]: T$.VoidTovoid(),
    [_doneHandler]: T$.VoidTovoid(),
    [_reportError]: T$3.dynamicAndStackTraceNTovoid$1(),
    [_closeHandler]: T$.VoidTovoid(),
    [_secureHandshake]: T$.VoidToFutureOfvoid(),
    renegotiate: T$3.__Tovoid$3(),
    [_secureHandshakeCompleteHandler]: T$.VoidTovoid(),
    [_onPauseStateChange]: T$.VoidTovoid(),
    [_onSubscriptionStateChange]: T$.VoidTovoid(),
    [_scheduleFilter]: T$.VoidToFutureOfvoid(),
    [_tryFilter]: T$.VoidToFutureOfvoid(),
    [_readSocketOrBufferedData]: T$3.intToListNOfint(),
    [_readSocket]: T$.VoidTovoid(),
    [_writeSocket]: T$.VoidTovoid(),
    [_scheduleReadEvent]: T$.VoidTodynamic(),
    [_sendReadEvent]: T$.VoidTodynamic(),
    [_sendWriteEvent]: T$.VoidTodynamic(),
    [_pushAllFilterStages]: T$3.VoidToFutureOf_FilterStatus()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._RawSecureSocket))));
  dart.setStaticMethodSignature(io._RawSecureSocket, () => ['_isBufferEncrypted', 'connect', '_verifyFields', '_fixOffset']);
  dart.setGetterSignature(io._RawSecureSocket, () => dart.global.Object.setPrototypeOf({
    [_socketSubscription]: T$3.StreamSubscriptionOfRawSocketEvent(),
    port: T$.int(),
    remoteAddress: T$3.InternetAddress(),
    remotePort: T$.int(),
    [_closedReadEventSent]: T$.bool(),
    writeEventsEnabled: T$.bool(),
    readEventsEnabled: T$.bool(),
    peerCertificate: T$3.X509CertificateN(),
    selectedProtocol: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._RawSecureSocket))));
  dart.setSetterSignature(io._RawSecureSocket, () => dart.global.Object.setPrototypeOf({
    [_socketSubscription]: T$3.StreamSubscriptionOfRawSocketEvent(),
    [_owner]: T$.dynamic(),
    writeEventsEnabled: T$.bool(),
    readEventsEnabled: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(io._RawSecureSocket))));
  dart.setLibraryUri(io._RawSecureSocket, I[119]);
  dart.setFieldSignature(io._RawSecureSocket, () => dart.global.Object.setPrototypeOf({
    [_socket$]: {type: T$3.RawSocket(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_handshakeComplete]: {type: T$3.CompleterOf_RawSecureSocket(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_controller]: {type: T$3.StreamControllerOfRawSocketEvent(), isConst: false, isFinal: true, libraryUri: I[39]},
    [___RawSecureSocket__socketSubscription]: {type: T$3.StreamSubscriptionNOfRawSocketEvent(), isConst: false, isFinal: false, libraryUri: I[39]},
    [___RawSecureSocket__socketSubscription_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_bufferedData$]: {type: T$2.ListNOfint(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_bufferedDataIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    address: {type: T$3.InternetAddress(), isConst: false, isFinal: true, libraryUri: I[119]},
    isServer: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    context: {type: T$3.SecurityContext(), isConst: false, isFinal: true, libraryUri: I[119]},
    requestClientCertificate: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    requireClientCertificate: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    onBadCertificate: {type: T$3.X509CertificateToNbool(), isConst: false, isFinal: true},
    keyLog: {type: T$3.StringToNvoid(), isConst: false, isFinal: true},
    keyLogPort: {type: T$3.ReceivePortN(), isConst: false, isFinal: false, libraryUri: I[138]},
    [_status]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_writeEventsEnabled]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_readEventsEnabled]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pauseCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pendingReadEvent]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_socketClosedRead]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_socketClosedWrite]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closedRead]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closedWrite]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closeCompleter]: {type: T$3.CompleterOfRawSecureSocket(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_filterStatus]: {type: T$3._FilterStatus(), isConst: false, isFinal: false, libraryUri: I[119]},
    [_connectPending]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_filterPending]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_filterActive]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_secureFilter]: {type: T$3._SecureFilterN(), isConst: false, isFinal: false, libraryUri: I[119]},
    [_selectedProtocol]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._RawSecureSocket))));
  dart.setStaticFieldSignature(io._RawSecureSocket, () => ['handshakeStatus', 'connectedStatus', 'closedStatus', 'readPlaintextId', 'writePlaintextId', 'readEncryptedId', 'writeEncryptedId', 'bufferCount']);
  dart.defineLazy(io._RawSecureSocket, {
    /*io._RawSecureSocket.handshakeStatus*/get handshakeStatus() {
      return 201;
    },
    /*io._RawSecureSocket.connectedStatus*/get connectedStatus() {
      return 202;
    },
    /*io._RawSecureSocket.closedStatus*/get closedStatus() {
      return 203;
    },
    /*io._RawSecureSocket.readPlaintextId*/get readPlaintextId() {
      return 0;
    },
    /*io._RawSecureSocket.writePlaintextId*/get writePlaintextId() {
      return 1;
    },
    /*io._RawSecureSocket.readEncryptedId*/get readEncryptedId() {
      return 2;
    },
    /*io._RawSecureSocket.writeEncryptedId*/get writeEncryptedId() {
      return 3;
    },
    /*io._RawSecureSocket.bufferCount*/get bufferCount() {
      return 4;
    }
  }, false);
  io._ExternalBuffer = class _ExternalBuffer extends core.Object {
    static ['_#new#tearOff'](size) {
      if (size == null) dart.nullFailed(I[137], 1232, 23, "size");
      return new io._ExternalBuffer.new(size);
    }
    advanceStart(bytes) {
      if (bytes == null) dart.nullFailed(I[137], 1237, 25, "bytes");
      if (!(dart.notNull(this.start) > dart.notNull(this.end) || dart.notNull(this.start) + dart.notNull(bytes) <= dart.notNull(this.end))) dart.assertFailed(null, I[137], 1238, 12, "start > end || start + bytes <= end");
      this.start = dart.notNull(this.start) + dart.notNull(bytes);
      if (dart.notNull(this.start) >= dart.notNull(this.size)) {
        this.start = dart.notNull(this.start) - dart.notNull(this.size);
        if (!(dart.notNull(this.start) <= dart.notNull(this.end))) dart.assertFailed(null, I[137], 1242, 14, "start <= end");
        if (!(dart.notNull(this.start) < dart.notNull(this.size))) dart.assertFailed(null, I[137], 1243, 14, "start < size");
      }
    }
    advanceEnd(bytes) {
      if (bytes == null) dart.nullFailed(I[137], 1247, 23, "bytes");
      if (!(dart.notNull(this.start) <= dart.notNull(this.end) || dart.notNull(this.start) > dart.notNull(this.end) + dart.notNull(bytes))) dart.assertFailed(null, I[137], 1248, 12, "start <= end || start > end + bytes");
      this.end = dart.notNull(this.end) + dart.notNull(bytes);
      if (dart.notNull(this.end) >= dart.notNull(this.size)) {
        this.end = dart.notNull(this.end) - dart.notNull(this.size);
        if (!(dart.notNull(this.end) < dart.notNull(this.start))) dart.assertFailed(null, I[137], 1252, 14, "end < start");
        if (!(dart.notNull(this.end) < dart.notNull(this.size))) dart.assertFailed(null, I[137], 1253, 14, "end < size");
      }
    }
    get isEmpty() {
      return this.end == this.start;
    }
    get length() {
      return dart.notNull(this.start) > dart.notNull(this.end) ? dart.notNull(this.size) + dart.notNull(this.end) - dart.notNull(this.start) : dart.notNull(this.end) - dart.notNull(this.start);
    }
    get linearLength() {
      return dart.notNull(this.start) > dart.notNull(this.end) ? dart.notNull(this.size) - dart.notNull(this.start) : dart.notNull(this.end) - dart.notNull(this.start);
    }
    get free() {
      return dart.notNull(this.start) > dart.notNull(this.end) ? dart.notNull(this.start) - dart.notNull(this.end) - 1 : dart.notNull(this.size) + dart.notNull(this.start) - dart.notNull(this.end) - 1;
    }
    get linearFree() {
      if (dart.notNull(this.start) > dart.notNull(this.end)) return dart.notNull(this.start) - dart.notNull(this.end) - 1;
      if (this.start === 0) return dart.notNull(this.size) - dart.notNull(this.end) - 1;
      return dart.notNull(this.size) - dart.notNull(this.end);
    }
    read(bytes) {
      if (bytes == null) {
        bytes = this.length;
      } else {
        bytes = math.min(T$.int(), bytes, this.length);
      }
      if (bytes === 0) return null;
      let result = _native_typed_data.NativeUint8List.new(bytes);
      let bytesRead = 0;
      while (bytesRead < dart.notNull(bytes)) {
        let toRead = math.min(T$.int(), dart.notNull(bytes) - bytesRead, this.linearLength);
        result[$setRange](bytesRead, bytesRead + toRead, dart.nullCheck(this.data), this.start);
        this.advanceStart(toRead);
        bytesRead = bytesRead + toRead;
      }
      return result;
    }
    write(inputData, offset, bytes) {
      if (inputData == null) dart.nullFailed(I[137], 1290, 23, "inputData");
      if (offset == null) dart.nullFailed(I[137], 1290, 38, "offset");
      if (bytes == null) dart.nullFailed(I[137], 1290, 50, "bytes");
      if (dart.notNull(bytes) > dart.notNull(this.free)) {
        bytes = this.free;
      }
      let written = 0;
      let toWrite = math.min(T$.int(), bytes, this.linearFree);
      while (toWrite > 0) {
        dart.nullCheck(this.data)[$setRange](this.end, dart.notNull(this.end) + toWrite, inputData, offset);
        this.advanceEnd(toWrite);
        offset = dart.notNull(offset) + toWrite;
        written = written + toWrite;
        toWrite = math.min(T$.int(), dart.notNull(bytes) - written, this.linearFree);
      }
      return written;
    }
    writeFromSource(getData) {
      if (getData == null) dart.nullFailed(I[137], 1307, 34, "getData");
      let written = 0;
      let toWrite = this.linearFree;
      while (dart.notNull(toWrite) > 0) {
        let inputData = getData(toWrite);
        if (inputData == null || inputData[$length] === 0) break;
        let len = inputData[$length];
        dart.nullCheck(this.data)[$setRange](this.end, dart.notNull(this.end) + dart.notNull(len), inputData);
        this.advanceEnd(len);
        written = written + dart.notNull(len);
        toWrite = this.linearFree;
      }
      return written;
    }
    readToSocket(socket) {
      if (socket == null) dart.nullFailed(I[137], 1324, 31, "socket");
      while (true) {
        let toWrite = this.linearLength;
        if (toWrite === 0) return false;
        let bytes = socket.write(dart.nullCheck(this.data), this.start, toWrite);
        this.advanceStart(bytes);
        if (dart.notNull(bytes) < dart.notNull(toWrite)) {
          return true;
        }
      }
    }
  };
  (io._ExternalBuffer.new = function(size) {
    if (size == null) dart.nullFailed(I[137], 1232, 23, "size");
    this.data = null;
    this.size = size;
    this.start = (dart.notNull(size) / 2)[$truncate]();
    this.end = (dart.notNull(size) / 2)[$truncate]();
    ;
  }).prototype = io._ExternalBuffer.prototype;
  dart.addRtiResources(io._ExternalBuffer, ["io|_ExternalBuffer"]);
  dart.setMethodSignature(io._ExternalBuffer, () => dart.global.Object.setPrototypeOf({
    advanceStart: T$.intTovoid(),
    advanceEnd: T$.intTovoid(),
    read: T$3.intNToUint8ListN$1(),
    write: T$3.ListOfintAndintAndintToint(),
    writeFromSource: T$3.FnToint(),
    readToSocket: T$3.RawSocketTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._ExternalBuffer))));
  dart.setGetterSignature(io._ExternalBuffer, () => dart.global.Object.setPrototypeOf({
    isEmpty: T$.bool(),
    length: T$.int(),
    linearLength: T$.int(),
    free: T$.int(),
    linearFree: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._ExternalBuffer))));
  dart.setLibraryUri(io._ExternalBuffer, I[119]);
  dart.setFieldSignature(io._ExternalBuffer, () => dart.global.Object.setPrototypeOf({
    data: {type: T$2.ListNOfint(), isConst: false, isFinal: false, libraryUri: I[11]},
    start: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    end: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    size: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._ExternalBuffer))));
  io._SecureFilter = class _SecureFilter extends core.Object {
    static ['_#_#tearOff']() {
      return io._SecureFilter.__();
    }
  };
  (io._SecureFilter[dart.mixinNew] = function() {
  }).prototype = io._SecureFilter.prototype;
  dart.addRtiResources(io._SecureFilter, ["io|_SecureFilter"]);
  dart.setStaticMethodSignature(io._SecureFilter, () => ['__']);
  dart.setLibraryUri(io._SecureFilter, I[119]);
  var type$1 = dart.privateName(io, "TlsException.type");
  var message$6 = dart.privateName(io, "TlsException.message");
  var osError$1 = dart.privateName(io, "TlsException.osError");
  io.TlsException = class TlsException extends core.Object {
    get type() {
      return this[type$1];
    }
    set type(value) {
      super.type = value;
    }
    get message() {
      return this[message$6];
    }
    set message(value) {
      super.message = value;
    }
    get osError() {
      return this[osError$1];
    }
    set osError(value) {
      super.osError = value;
    }
    static ['_#new#tearOff'](message = "", osError = null) {
      if (message == null) dart.nullFailed(I[137], 1376, 30, "message");
      return new io.TlsException.new(message, osError);
    }
    static ['_#_#tearOff'](type, message, osError) {
      if (type == null) dart.nullFailed(I[137], 1379, 29, "type");
      if (message == null) dart.nullFailed(I[137], 1379, 40, "message");
      return new io.TlsException.__(type, message, osError);
    }
    toString() {
      let sb = new core.StringBuffer.new();
      sb.write(this.type);
      if (this.message[$isNotEmpty]) {
        sb.write(": " + dart.str(this.message));
        if (this.osError != null) {
          sb.write(" (" + dart.str(this.osError) + ")");
        }
      } else if (this.osError != null) {
        sb.write(": " + dart.str(this.osError));
      }
      return dart.toString(sb);
    }
  };
  (io.TlsException.new = function(message = "", osError = null) {
    if (message == null) dart.nullFailed(I[137], 1376, 30, "message");
    io.TlsException.__.call(this, "TlsException", message, osError);
  }).prototype = io.TlsException.prototype;
  (io.TlsException.__ = function(type, message, osError) {
    if (type == null) dart.nullFailed(I[137], 1379, 29, "type");
    if (message == null) dart.nullFailed(I[137], 1379, 40, "message");
    this[type$1] = type;
    this[message$6] = message;
    this[osError$1] = osError;
    ;
  }).prototype = io.TlsException.prototype;
  dart.addRtiResources(io.TlsException, ["io|TlsException", "io|IOException", "core|Exception"]);
  dart.setLibraryUri(io.TlsException, I[119]);
  dart.setFieldSignature(io.TlsException, () => dart.global.Object.setPrototypeOf({
    type: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    osError: {type: T$2.OSErrorN(), isConst: false, isFinal: true, libraryUri: I[119]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.TlsException))));
  dart.defineExtensionMethods(io.TlsException, ['toString']);
  io.HandshakeException = class HandshakeException extends io.TlsException {
    static ['_#new#tearOff'](message = "", osError = null) {
      if (message == null) dart.nullFailed(I[137], 1401, 36, "message");
      return new io.HandshakeException.new(message, osError);
    }
  };
  (io.HandshakeException.new = function(message = "", osError = null) {
    if (message == null) dart.nullFailed(I[137], 1401, 36, "message");
    dart.global.Object.getPrototypeOf(io.HandshakeException).__.call(this, "HandshakeException", message, osError);
    ;
  }).prototype = io.HandshakeException.prototype;
  dart.addRtiResources(io.HandshakeException, ["io|HandshakeException"]);
  dart.setLibraryUri(io.HandshakeException, I[119]);
  io.CertificateException = class CertificateException extends io.TlsException {
    static ['_#new#tearOff'](message = "", osError = null) {
      if (message == null) dart.nullFailed(I[137], 1410, 38, "message");
      return new io.CertificateException.new(message, osError);
    }
  };
  (io.CertificateException.new = function(message = "", osError = null) {
    if (message == null) dart.nullFailed(I[137], 1410, 38, "message");
    dart.global.Object.getPrototypeOf(io.CertificateException).__.call(this, "CertificateException", message, osError);
    ;
  }).prototype = io.CertificateException.prototype;
  dart.addRtiResources(io.CertificateException, ["io|CertificateException"]);
  dart.setLibraryUri(io.CertificateException, I[119]);
  var _version$ = dart.privateName(io, "TlsProtocolVersion._version");
  var _version = dart.privateName(io, "_version");
  io.TlsProtocolVersion = class TlsProtocolVersion extends core.Object {
    get [_version]() {
      return this[_version$];
    }
    set [_version](value) {
      super[_version] = value;
    }
    static ['_#_#tearOff'](_version) {
      if (_version == null) dart.nullFailed(I[139], 23, 35, "_version");
      return new io.TlsProtocolVersion.__(_version);
    }
    static _fromProtocolVersionConstant(version) {
      if (version == null) dart.nullFailed(I[139], 25, 62, "version");
      return (() => {
        let t$36185 = null;
        let t$36$350$350 = version;
        L4: {
          {
            if (771 === t$36$350$350) {
              t$36185 = io.TlsProtocolVersion.tls1_2;
              break L4;
            }
          }
          {
            if (772 === t$36$350$350) {
              t$36185 = io.TlsProtocolVersion.tls1_3;
              break L4;
            }
          }
          {
            {
              t$36185 = dart.throw(new core.ArgumentError.value(version, "version"));
              break L4;
            }
          }
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36185;
      })();
    }
  };
  (io.TlsProtocolVersion.__ = function(_version) {
    if (_version == null) dart.nullFailed(I[139], 23, 35, "_version");
    this[_version$] = _version;
    ;
  }).prototype = io.TlsProtocolVersion.prototype;
  dart.addRtiResources(io.TlsProtocolVersion, ["io|TlsProtocolVersion"]);
  dart.setStaticMethodSignature(io.TlsProtocolVersion, () => ['_fromProtocolVersionConstant']);
  dart.setLibraryUri(io.TlsProtocolVersion, I[119]);
  dart.setFieldSignature(io.TlsProtocolVersion, () => dart.global.Object.setPrototypeOf({[_version]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.TlsProtocolVersion))));
  dart.setStaticFieldSignature(io.TlsProtocolVersion, () => ['tls1_2', 'tls1_3']);
  dart.defineLazy(io.TlsProtocolVersion, {
    /*io.TlsProtocolVersion.tls1_2*/get tls1_2() {
      return C[222] || CT.C222;
    },
    /*io.TlsProtocolVersion.tls1_3*/get tls1_3() {
      return C[223] || CT.C223;
    }
  }, false);
  io.SecurityContext = class SecurityContext extends core.Object {
    static new(opts) {
      let withTrustedRoots = opts && 'withTrustedRoots' in opts ? opts.withTrustedRoots : false;
      if (withTrustedRoots == null) dart.nullFailed(I[121], 578, 33, "withTrustedRoots");
      dart.throw(new core.UnsupportedError.new("SecurityContext constructor"));
    }
    static ['_#new#tearOff'](opts) {
      let withTrustedRoots = opts && 'withTrustedRoots' in opts ? opts.withTrustedRoots : false;
      if (withTrustedRoots == null) dart.nullFailed(I[121], 578, 33, "withTrustedRoots");
      return io.SecurityContext.new({withTrustedRoots: withTrustedRoots});
    }
    static get defaultContext() {
      dart.throw(new core.UnsupportedError.new("default SecurityContext getter"));
    }
    static get alpnSupported() {
      dart.throw(new core.UnsupportedError.new("SecurityContext alpnSupported getter"));
    }
    static _protocolsToLengthEncoding(protocols) {
      let t$36187, t$36187$;
      if (protocols == null || protocols[$length] === 0) {
        return _native_typed_data.NativeUint8List.new(0);
      }
      let protocolsLength = protocols[$length];
      let expectedLength = protocolsLength;
      for (let i = 0; i < dart.notNull(protocolsLength); i = i + 1) {
        let length = protocols[$_get](i).length;
        if (length > 0 && length <= 255) {
          expectedLength = dart.notNull(expectedLength) + length;
        } else {
          dart.throw(new core.ArgumentError.new("Length of protocol must be between 1 and 255 (was: " + dart.strSafe(length) + ")."));
        }
      }
      if (dart.notNull(expectedLength) >= 1 << 13) {
        dart.throw(new core.ArgumentError.new("The maximum message length supported is 2^13-1."));
      }
      let bytes = _native_typed_data.NativeUint8List.new(expectedLength);
      let bytesOffset = 0;
      for (let i = 0; i < dart.notNull(protocolsLength); i = i + 1) {
        let proto = protocols[$_get](i);
        bytes[$_set]((t$36187 = bytesOffset, bytesOffset = t$36187 + 1, t$36187), proto.length);
        let bits = 0;
        for (let j = 0; j < proto.length; j = j + 1) {
          let char = proto[$codeUnitAt](j);
          bits = (bits | char) >>> 0;
          bytes[$_set]((t$36187$ = bytesOffset, bytesOffset = t$36187$ + 1, t$36187$), char & 255);
        }
        if (bits > 127) {
          return io.SecurityContext._protocolsToLengthEncodingNonAsciiBailout(protocols);
        }
      }
      return bytes;
    }
    static _protocolsToLengthEncodingNonAsciiBailout(protocols) {
      if (protocols == null) dart.nullFailed(I[139], 281, 20, "protocols");
      function addProtocol(outBytes, protocol) {
        if (outBytes == null) dart.nullFailed(I[139], 282, 32, "outBytes");
        if (protocol == null) dart.nullFailed(I[139], 282, 49, "protocol");
        let protocolBytes = convert.utf8.encode(protocol);
        let len = protocolBytes[$length];
        if (dart.notNull(len) > 255) {
          dart.throw(new core.ArgumentError.new("Length of protocol must be between 1 and 255 (was: " + dart.str(len) + ")"));
        }
        outBytes[$add](len);
        outBytes[$addAll](protocolBytes);
      }
      dart.fn(addProtocol, T$3.ListOfintAndStringTovoid());
      let bytes = G.JSArrayOfint().of([]);
      for (let i = 0; i < dart.notNull(protocols[$length]); i = i + 1) {
        addProtocol(bytes, protocols[$_get](i));
      }
      if (dart.notNull(bytes[$length]) >= 1 << 13) {
        dart.throw(new core.ArgumentError.new("The maximum message length supported is 2^13-1."));
      }
      return _native_typed_data.NativeUint8List.fromList(bytes);
    }
  };
  (io.SecurityContext[dart.mixinNew] = function() {
  }).prototype = io.SecurityContext.prototype;
  dart.addRtiResources(io.SecurityContext, ["io|SecurityContext"]);
  dart.setStaticMethodSignature(io.SecurityContext, () => ['new', '_protocolsToLengthEncoding', '_protocolsToLengthEncodingNonAsciiBailout']);
  dart.setStaticGetterSignature(io.SecurityContext, () => ['defaultContext', 'alpnSupported']);
  dart.setLibraryUri(io.SecurityContext, I[119]);
  var __serviceId = dart.privateName(io, "__serviceId");
  var _serviceId = dart.privateName(io, "_serviceId");
  var _serviceTypePath = dart.privateName(io, "_serviceTypePath");
  var _servicePath = dart.privateName(io, "_servicePath");
  var _serviceTypeName = dart.privateName(io, "_serviceTypeName");
  var _serviceType = dart.privateName(io, "_serviceType");
  io._ServiceObject = class _ServiceObject extends core.Object {};
  io._ServiceObject[dart.mixinOn] = Object => class _ServiceObject extends Object {
    get [_serviceId]() {
      let t$36187;
      if (this[__serviceId] === 0) this[__serviceId] = (t$36187 = io._nextServiceId, io._nextServiceId = dart.notNull(t$36187) + 1, t$36187);
      return this[__serviceId];
    }
    get [_servicePath]() {
      return dart.str(this[_serviceTypePath]) + "/" + dart.str(this[_serviceId]);
    }
    [_serviceType](ref) {
      if (ref == null) dart.nullFailed(I[140], 23, 28, "ref");
      if (dart.test(ref)) return "@" + dart.str(this[_serviceTypeName]);
      return this[_serviceTypeName];
    }
  };
  (io._ServiceObject[dart.mixinNew] = function() {
    this[__serviceId] = 0;
  }).prototype = io._ServiceObject.prototype;
  dart.addRtiResources(io._ServiceObject, ["io|_ServiceObject"]);
  dart.setMethodSignature(io._ServiceObject, () => dart.global.Object.setPrototypeOf({[_serviceType]: T$.boolToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(io._ServiceObject))));
  dart.setGetterSignature(io._ServiceObject, () => dart.global.Object.setPrototypeOf({
    [_serviceId]: T$.int(),
    [_servicePath]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._ServiceObject))));
  dart.setLibraryUri(io._ServiceObject, I[119]);
  dart.setFieldSignature(io._ServiceObject, () => dart.global.Object.setPrototypeOf({[__serviceId]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io._ServiceObject))));
  var _value$ = dart.privateName(io, "InternetAddressType._value");
  var _value = dart.privateName(io, "_value");
  io.InternetAddressType = class InternetAddressType extends core.Object {
    get [_value]() {
      return this[_value$];
    }
    set [_value](value) {
      super[_value] = value;
    }
    static ['_#_#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[141], 21, 36, "_value");
      return new io.InternetAddressType.__(_value);
    }
    static _from(value) {
      if (value == null) dart.nullFailed(I[141], 23, 41, "value");
      if (value == io.InternetAddressType.IPv4[_value]) return io.InternetAddressType.IPv4;
      if (value == io.InternetAddressType.IPv6[_value]) return io.InternetAddressType.IPv6;
      if (value == io.InternetAddressType.unix[_value]) return io.InternetAddressType.unix;
      dart.throw(new core.ArgumentError.new("Invalid type: " + dart.str(value)));
    }
    static ['_#_from#tearOff'](value) {
      if (value == null) dart.nullFailed(I[141], 23, 41, "value");
      return io.InternetAddressType._from(value);
    }
    get name() {
      return (C[224] || CT.C224)[$_get](dart.notNull(this[_value]) + 1);
    }
    toString() {
      return "InternetAddressType: " + dart.str(this.name);
    }
  };
  (io.InternetAddressType.__ = function(_value) {
    if (_value == null) dart.nullFailed(I[141], 21, 36, "_value");
    this[_value$] = _value;
    ;
  }).prototype = io.InternetAddressType.prototype;
  dart.addRtiResources(io.InternetAddressType, ["io|InternetAddressType"]);
  dart.setStaticMethodSignature(io.InternetAddressType, () => ['_from']);
  dart.setGetterSignature(io.InternetAddressType, () => dart.global.Object.setPrototypeOf({name: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(io.InternetAddressType))));
  dart.setLibraryUri(io.InternetAddressType, I[119]);
  dart.setFieldSignature(io.InternetAddressType, () => dart.global.Object.setPrototypeOf({[_value]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.InternetAddressType))));
  dart.setStaticFieldSignature(io.InternetAddressType, () => ['IPv4', 'IPv6', 'unix', 'any']);
  dart.defineExtensionMethods(io.InternetAddressType, ['toString']);
  dart.defineLazy(io.InternetAddressType, {
    /*io.InternetAddressType.IPv4*/get IPv4() {
      return C[225] || CT.C225;
    },
    /*io.InternetAddressType.IPv6*/get IPv6() {
      return C[226] || CT.C226;
    },
    /*io.InternetAddressType.unix*/get unix() {
      return C[227] || CT.C227;
    },
    /*io.InternetAddressType.any*/get any() {
      return C[228] || CT.C228;
    }
  }, false);
  io.InternetAddress = class InternetAddress extends core.Object {
    static get loopbackIPv4() {
      dart.throw(new core.UnsupportedError.new("InternetAddress.loopbackIPv4"));
    }
    static get loopbackIPv6() {
      dart.throw(new core.UnsupportedError.new("InternetAddress.loopbackIPv6"));
    }
    static get anyIPv4() {
      dart.throw(new core.UnsupportedError.new("InternetAddress.anyIPv4"));
    }
    static get anyIPv6() {
      dart.throw(new core.UnsupportedError.new("InternetAddress.anyIPv6"));
    }
    static new(address, opts) {
      if (address == null) dart.nullFailed(I[121], 407, 34, "address");
      let type = opts && 'type' in opts ? opts.type : null;
      dart.throw(new core.UnsupportedError.new("InternetAddress"));
    }
    static ['_#new#tearOff'](address, opts) {
      if (address == null) dart.nullFailed(I[121], 407, 34, "address");
      let type = opts && 'type' in opts ? opts.type : null;
      return io.InternetAddress.new(address, {type: type});
    }
    static fromRawAddress(rawAddress, opts) {
      if (rawAddress == null) dart.nullFailed(I[121], 412, 52, "rawAddress");
      let type = opts && 'type' in opts ? opts.type : null;
      dart.throw(new core.UnsupportedError.new("InternetAddress.fromRawAddress"));
    }
    static ['_#fromRawAddress#tearOff'](rawAddress, opts) {
      if (rawAddress == null) dart.nullFailed(I[121], 412, 52, "rawAddress");
      let type = opts && 'type' in opts ? opts.type : null;
      return io.InternetAddress.fromRawAddress(rawAddress, {type: type});
    }
    static lookup(host, opts) {
      if (host == null) dart.nullFailed(I[121], 418, 54, "host");
      let type = opts && 'type' in opts ? opts.type : C[228] || CT.C228;
      if (type == null) dart.nullFailed(I[121], 419, 28, "type");
      dart.throw(new core.UnsupportedError.new("InternetAddress.lookup"));
    }
    static _cloneWithNewHost(address, host) {
      if (address == null) dart.nullFailed(I[121], 425, 23, "address");
      if (host == null) dart.nullFailed(I[121], 425, 39, "host");
      dart.throw(new core.UnsupportedError.new("InternetAddress._cloneWithNewHost"));
    }
    static tryParse(address) {
      if (address == null) dart.nullFailed(I[121], 430, 43, "address");
      dart.throw(new core.UnsupportedError.new("InternetAddress.tryParse"));
    }
  };
  (io.InternetAddress[dart.mixinNew] = function() {
  }).prototype = io.InternetAddress.prototype;
  dart.addRtiResources(io.InternetAddress, ["io|InternetAddress"]);
  dart.setStaticMethodSignature(io.InternetAddress, () => ['new', 'fromRawAddress', 'lookup', '_cloneWithNewHost', 'tryParse']);
  dart.setStaticGetterSignature(io.InternetAddress, () => ['loopbackIPv4', 'loopbackIPv6', 'anyIPv4', 'anyIPv6']);
  dart.setLibraryUri(io.InternetAddress, I[119]);
  io.NetworkInterface = class NetworkInterface extends core.Object {
    static get listSupported() {
      dart.throw(new core.UnsupportedError.new("NetworkInterface.listSupported"));
    }
    static list(opts) {
      let includeLoopback = opts && 'includeLoopback' in opts ? opts.includeLoopback : false;
      if (includeLoopback == null) dart.nullFailed(I[121], 444, 13, "includeLoopback");
      let includeLinkLocal = opts && 'includeLinkLocal' in opts ? opts.includeLinkLocal : false;
      if (includeLinkLocal == null) dart.nullFailed(I[121], 445, 12, "includeLinkLocal");
      let type = opts && 'type' in opts ? opts.type : C[228] || CT.C228;
      if (type == null) dart.nullFailed(I[121], 446, 27, "type");
      dart.throw(new core.UnsupportedError.new("NetworkInterface.list"));
    }
  };
  (io.NetworkInterface.new = function() {
    ;
  }).prototype = io.NetworkInterface.prototype;
  dart.addRtiResources(io.NetworkInterface, ["io|NetworkInterface"]);
  dart.setStaticMethodSignature(io.NetworkInterface, () => ['list']);
  dart.setStaticGetterSignature(io.NetworkInterface, () => ['listSupported']);
  dart.setLibraryUri(io.NetworkInterface, I[119]);
  io.RawServerSocket = class RawServerSocket extends core.Object {
    static bind(address, port, opts) {
      if (port == null) dart.nullFailed(I[121], 454, 52, "port");
      let backlog = opts && 'backlog' in opts ? opts.backlog : 0;
      if (backlog == null) dart.nullFailed(I[121], 455, 12, "backlog");
      let v6Only = opts && 'v6Only' in opts ? opts.v6Only : false;
      if (v6Only == null) dart.nullFailed(I[121], 455, 30, "v6Only");
      let shared = opts && 'shared' in opts ? opts.shared : false;
      if (shared == null) dart.nullFailed(I[121], 455, 51, "shared");
      dart.throw(new core.UnsupportedError.new("RawServerSocket.bind"));
    }
  };
  (io.RawServerSocket.new = function() {
    ;
  }).prototype = io.RawServerSocket.prototype;
  dart.addRtiResources(io.RawServerSocket, ["io|RawServerSocket", "async|Stream"]);
  dart.setStaticMethodSignature(io.RawServerSocket, () => ['bind']);
  dart.setLibraryUri(io.RawServerSocket, I[119]);
  io.ServerSocket = class ServerSocket extends core.Object {
    static bind(address, port, opts) {
      if (port == null) dart.nullFailed(I[141], 305, 49, "port");
      let backlog = opts && 'backlog' in opts ? opts.backlog : 0;
      if (backlog == null) dart.nullFailed(I[141], 306, 12, "backlog");
      let v6Only = opts && 'v6Only' in opts ? opts.v6Only : false;
      if (v6Only == null) dart.nullFailed(I[141], 306, 30, "v6Only");
      let shared = opts && 'shared' in opts ? opts.shared : false;
      if (shared == null) dart.nullFailed(I[141], 306, 51, "shared");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io.ServerSocket._bind(address, port, {backlog: backlog, v6Only: v6Only, shared: shared});
      }
      return overrides.serverSocketBind(address, port, {backlog: backlog, v6Only: v6Only, shared: shared});
    }
    static _bind(address, port, opts) {
      if (port == null) dart.nullFailed(I[121], 463, 50, "port");
      let backlog = opts && 'backlog' in opts ? opts.backlog : 0;
      if (backlog == null) dart.nullFailed(I[121], 464, 12, "backlog");
      let v6Only = opts && 'v6Only' in opts ? opts.v6Only : false;
      if (v6Only == null) dart.nullFailed(I[121], 464, 30, "v6Only");
      let shared = opts && 'shared' in opts ? opts.shared : false;
      if (shared == null) dart.nullFailed(I[121], 464, 51, "shared");
      dart.throw(new core.UnsupportedError.new("ServerSocket.bind"));
    }
  };
  (io.ServerSocket.new = function() {
    ;
  }).prototype = io.ServerSocket.prototype;
  dart.addRtiResources(io.ServerSocket, ["io|ServerSocket", "_http|ServerSocketBase", "async|Stream"]);
  dart.setStaticMethodSignature(io.ServerSocket, () => ['bind', '_bind']);
  dart.setLibraryUri(io.ServerSocket, I[119]);
  var _value$0 = dart.privateName(io, "SocketDirection._value");
  io.SocketDirection = class SocketDirection extends core.Object {
    get [_value]() {
      return this[_value$0];
    }
    set [_value](value) {
      super[_value] = value;
    }
    static ['_#_#tearOff'](_value) {
      return new io.SocketDirection.__(_value);
    }
  };
  (io.SocketDirection.__ = function(_value) {
    this[_value$0] = _value;
    ;
  }).prototype = io.SocketDirection.prototype;
  dart.addRtiResources(io.SocketDirection, ["io|SocketDirection"]);
  dart.setLibraryUri(io.SocketDirection, I[119]);
  dart.setFieldSignature(io.SocketDirection, () => dart.global.Object.setPrototypeOf({[_value]: {type: T$.dynamic(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(io.SocketDirection))));
  dart.setStaticFieldSignature(io.SocketDirection, () => ['receive', 'send', 'both']);
  dart.defineLazy(io.SocketDirection, {
    /*io.SocketDirection.receive*/get receive() {
      return C[229] || CT.C229;
    },
    /*io.SocketDirection.send*/get send() {
      return C[230] || CT.C230;
    },
    /*io.SocketDirection.both*/get both() {
      return C[231] || CT.C231;
    }
  }, false);
  var _value$1 = dart.privateName(io, "SocketOption._value");
  io.SocketOption = class SocketOption extends core.Object {
    get [_value]() {
      return this[_value$1];
    }
    set [_value](value) {
      super[_value] = value;
    }
    static ['_#_#tearOff'](_value) {
      return new io.SocketOption.__(_value);
    }
  };
  (io.SocketOption.__ = function(_value) {
    this[_value$1] = _value;
    ;
  }).prototype = io.SocketOption.prototype;
  dart.addRtiResources(io.SocketOption, ["io|SocketOption"]);
  dart.setLibraryUri(io.SocketOption, I[119]);
  dart.setFieldSignature(io.SocketOption, () => dart.global.Object.setPrototypeOf({[_value]: {type: T$.dynamic(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(io.SocketOption))));
  dart.setStaticFieldSignature(io.SocketOption, () => ['tcpNoDelay', '_ipMulticastLoop', '_ipMulticastHops', '_ipMulticastIf', '_ipBroadcast']);
  dart.defineLazy(io.SocketOption, {
    /*io.SocketOption.tcpNoDelay*/get tcpNoDelay() {
      return C[232] || CT.C232;
    },
    /*io.SocketOption._ipMulticastLoop*/get _ipMulticastLoop() {
      return C[233] || CT.C233;
    },
    /*io.SocketOption._ipMulticastHops*/get _ipMulticastHops() {
      return C[234] || CT.C234;
    },
    /*io.SocketOption._ipMulticastIf*/get _ipMulticastIf() {
      return C[235] || CT.C235;
    },
    /*io.SocketOption._ipBroadcast*/get _ipBroadcast() {
      return C[236] || CT.C236;
    }
  }, false);
  io._RawSocketOptions = class _RawSocketOptions extends core._Enum {
    [_enumToString]() {
      return "_RawSocketOptions." + dart.str(this[_name$]);
    }
  };
  (io._RawSocketOptions.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[141], 368, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[141], 368, 6, "#name");
    dart.global.Object.getPrototypeOf(io._RawSocketOptions).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = io._RawSocketOptions.prototype;
  dart.addRtiResources(io._RawSocketOptions, ["io|_RawSocketOptions"]);
  dart.setMethodSignature(io._RawSocketOptions, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(io._RawSocketOptions))));
  dart.setLibraryUri(io._RawSocketOptions, I[119]);
  dart.setStaticFieldSignature(io._RawSocketOptions, () => ['values', 'SOL_SOCKET', 'IPPROTO_IP', 'IP_MULTICAST_IF', 'IPPROTO_IPV6', 'IPV6_MULTICAST_IF', 'IPPROTO_TCP', 'IPPROTO_UDP']);
  dart.defineLazy(io._RawSocketOptions, {
    /*io._RawSocketOptions.values*/get values() {
      return C[237] || CT.C237;
    },
    /*io._RawSocketOptions.SOL_SOCKET*/get SOL_SOCKET() {
      return C[238] || CT.C238;
    },
    /*io._RawSocketOptions.IPPROTO_IP*/get IPPROTO_IP() {
      return C[239] || CT.C239;
    },
    /*io._RawSocketOptions.IP_MULTICAST_IF*/get IP_MULTICAST_IF() {
      return C[240] || CT.C240;
    },
    /*io._RawSocketOptions.IPPROTO_IPV6*/get IPPROTO_IPV6() {
      return C[241] || CT.C241;
    },
    /*io._RawSocketOptions.IPV6_MULTICAST_IF*/get IPV6_MULTICAST_IF() {
      return C[242] || CT.C242;
    },
    /*io._RawSocketOptions.IPPROTO_TCP*/get IPPROTO_TCP() {
      return C[243] || CT.C243;
    },
    /*io._RawSocketOptions.IPPROTO_UDP*/get IPPROTO_UDP() {
      return C[244] || CT.C244;
    }
  }, false);
  var level$2 = dart.privateName(io, "RawSocketOption.level");
  var option$ = dart.privateName(io, "RawSocketOption.option");
  var value$2 = dart.privateName(io, "RawSocketOption.value");
  io.RawSocketOption = class RawSocketOption extends core.Object {
    get level() {
      return this[level$2];
    }
    set level(value) {
      super.level = value;
    }
    get option() {
      return this[option$];
    }
    set option(value) {
      super.option = value;
    }
    get value() {
      return this[value$2];
    }
    set value(value) {
      super.value = value;
    }
    static ['_#new#tearOff'](level, option, value) {
      if (level == null) dart.nullFailed(I[141], 401, 30, "level");
      if (option == null) dart.nullFailed(I[141], 401, 42, "option");
      if (value == null) dart.nullFailed(I[141], 401, 55, "value");
      return new io.RawSocketOption.new(level, option, value);
    }
    static fromInt(level, option, value) {
      if (level == null) dart.nullFailed(I[141], 404, 39, "level");
      if (option == null) dart.nullFailed(I[141], 404, 50, "option");
      if (value == null) dart.nullFailed(I[141], 404, 62, "value");
      let list = _native_typed_data.NativeUint8List.new(4);
      let buffer = typed_data.ByteData.view(list[$buffer], list[$offsetInBytes]);
      buffer[$setInt32](0, value, typed_data.Endian.host);
      return new io.RawSocketOption.new(level, option, list);
    }
    static ['_#fromInt#tearOff'](level, option, value) {
      if (level == null) dart.nullFailed(I[141], 404, 39, "level");
      if (option == null) dart.nullFailed(I[141], 404, 50, "option");
      if (value == null) dart.nullFailed(I[141], 404, 62, "value");
      return io.RawSocketOption.fromInt(level, option, value);
    }
    static fromBool(level, option, value) {
      if (level == null) dart.nullFailed(I[141], 412, 40, "level");
      if (option == null) dart.nullFailed(I[141], 412, 51, "option");
      if (value == null) dart.nullFailed(I[141], 412, 64, "value");
      return io.RawSocketOption.fromInt(level, option, dart.test(value) ? 1 : 0);
    }
    static ['_#fromBool#tearOff'](level, option, value) {
      if (level == null) dart.nullFailed(I[141], 412, 40, "level");
      if (option == null) dart.nullFailed(I[141], 412, 51, "option");
      if (value == null) dart.nullFailed(I[141], 412, 64, "value");
      return io.RawSocketOption.fromBool(level, option, value);
    }
    static get levelSocket() {
      return io.RawSocketOption._getOptionValue(io._RawSocketOptions.SOL_SOCKET.index);
    }
    static get levelIPv4() {
      return io.RawSocketOption._getOptionValue(io._RawSocketOptions.IPPROTO_IP.index);
    }
    static get IPv4MulticastInterface() {
      return io.RawSocketOption._getOptionValue(io._RawSocketOptions.IP_MULTICAST_IF.index);
    }
    static get levelIPv6() {
      return io.RawSocketOption._getOptionValue(io._RawSocketOptions.IPPROTO_IPV6.index);
    }
    static get IPv6MulticastInterface() {
      return io.RawSocketOption._getOptionValue(io._RawSocketOptions.IPV6_MULTICAST_IF.index);
    }
    static get levelTcp() {
      return io.RawSocketOption._getOptionValue(io._RawSocketOptions.IPPROTO_TCP.index);
    }
    static get levelUdp() {
      return io.RawSocketOption._getOptionValue(io._RawSocketOptions.IPPROTO_UDP.index);
    }
    static _getOptionValue(key) {
      if (key == null) dart.nullFailed(I[121], 570, 34, "key");
      dart.throw(new core.UnsupportedError.new("RawSocketOption._getOptionValue"));
    }
  };
  (io.RawSocketOption.new = function(level, option, value) {
    if (level == null) dart.nullFailed(I[141], 401, 30, "level");
    if (option == null) dart.nullFailed(I[141], 401, 42, "option");
    if (value == null) dart.nullFailed(I[141], 401, 55, "value");
    this[level$2] = level;
    this[option$] = option;
    this[value$2] = value;
    ;
  }).prototype = io.RawSocketOption.prototype;
  dart.addRtiResources(io.RawSocketOption, ["io|RawSocketOption"]);
  dart.setStaticMethodSignature(io.RawSocketOption, () => ['fromInt', 'fromBool', '_getOptionValue']);
  dart.setStaticGetterSignature(io.RawSocketOption, () => ['levelSocket', 'levelIPv4', 'IPv4MulticastInterface', 'levelIPv6', 'IPv6MulticastInterface', 'levelTcp', 'levelUdp']);
  dart.setLibraryUri(io.RawSocketOption, I[119]);
  dart.setFieldSignature(io.RawSocketOption, () => dart.global.Object.setPrototypeOf({
    level: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    option: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    value: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.RawSocketOption))));
  var _value$2 = dart.privateName(io, "RawSocketEvent._value");
  io.RawSocketEvent = class RawSocketEvent extends core.Object {
    get [_value]() {
      return this[_value$2];
    }
    set [_value](value) {
      super[_value] = value;
    }
    static ['_#_#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[141], 518, 31, "_value");
      return new io.RawSocketEvent.__(_value);
    }
    toString() {
      return (C[245] || CT.C245)[$_get](this[_value]);
    }
  };
  (io.RawSocketEvent.__ = function(_value) {
    if (_value == null) dart.nullFailed(I[141], 518, 31, "_value");
    this[_value$2] = _value;
    ;
  }).prototype = io.RawSocketEvent.prototype;
  dart.addRtiResources(io.RawSocketEvent, ["io|RawSocketEvent"]);
  dart.setLibraryUri(io.RawSocketEvent, I[119]);
  dart.setFieldSignature(io.RawSocketEvent, () => dart.global.Object.setPrototypeOf({[_value]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.RawSocketEvent))));
  dart.setStaticFieldSignature(io.RawSocketEvent, () => ['read', 'write', 'readClosed', 'closed']);
  dart.defineExtensionMethods(io.RawSocketEvent, ['toString']);
  dart.defineLazy(io.RawSocketEvent, {
    /*io.RawSocketEvent.read*/get read() {
      return C[246] || CT.C246;
    },
    /*io.RawSocketEvent.write*/get write() {
      return C[247] || CT.C247;
    },
    /*io.RawSocketEvent.readClosed*/get readClosed() {
      return C[248] || CT.C248;
    },
    /*io.RawSocketEvent.closed*/get closed() {
      return C[249] || CT.C249;
    }
  }, false);
  var socket$ = dart.privateName(io, "ConnectionTask.socket");
  io.ConnectionTask$ = dart.generic(S => {
    var __t$ConnectionTaskOfS = () => (__t$ConnectionTaskOfS = dart.constFn(S[_eval]("io|ConnectionTask<0>")))();
    var __t$FutureOfS = () => (__t$FutureOfS = dart.constFn(S[_eval]("async|Future<0>")))();
    class ConnectionTask extends core.Object {
      get socket() {
        return this[socket$];
      }
      set socket(value) {
        super.socket = value;
      }
      static ['_#_#tearOff'](S, socket, onCancel) {
        if (socket == null) dart.nullFailed(I[141], 542, 35, "socket");
        if (onCancel == null) dart.nullFailed(I[141], 542, 59, "onCancel");
        return new (io.ConnectionTask$(S)).__(socket, onCancel);
      }
      static fromSocket(T, socket, onCancel) {
        if (socket == null) dart.nullFailed(I[141], 562, 21, "socket");
        if (onCancel == null) dart.nullFailed(I[141], 562, 45, "onCancel");
        return new (io.ConnectionTask$(T)).__(socket, onCancel);
      }
      cancel() {
        this[_onCancel$]();
      }
    }
    (ConnectionTask.__ = function(socket, onCancel) {
      if (socket == null) dart.nullFailed(I[141], 542, 35, "socket");
      if (onCancel == null) dart.nullFailed(I[141], 542, 59, "onCancel");
      this[socket$] = socket;
      this[_onCancel$] = onCancel;
      this.$ti = this.$ti || __t$ConnectionTaskOfS();
      ;
    }).prototype = ConnectionTask.prototype;
    dart.addRtiResources(ConnectionTask, ["io|ConnectionTask"]);
    dart.setMethodSignature(ConnectionTask, () => dart.global.Object.setPrototypeOf({cancel: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(ConnectionTask))));
    dart.setStaticMethodSignature(ConnectionTask, () => ['fromSocket']);
    dart.setLibraryUri(ConnectionTask, I[119]);
    dart.setFieldSignature(ConnectionTask, () => dart.global.Object.setPrototypeOf({
      socket: {type: __t$FutureOfS(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_onCancel$]: {type: T$.VoidTovoid(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(ConnectionTask))));
    return ConnectionTask;
  });
  io.ConnectionTask = io.ConnectionTask$();
  io.RawSocket = class RawSocket extends core.Object {
    static connect(host, port, opts) {
      if (port == null) dart.nullFailed(I[121], 472, 54, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[121], 473, 35, "sourcePort");
      let timeout = opts && 'timeout' in opts ? opts.timeout : null;
      dart.throw(new core.UnsupportedError.new("RawSocket constructor"));
    }
    static startConnect(host, port, opts) {
      if (port == null) dart.nullFailed(I[121], 478, 75, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[121], 479, 35, "sourcePort");
      dart.throw(new core.UnsupportedError.new("RawSocket constructor"));
    }
  };
  (io.RawSocket.new = function() {
    ;
  }).prototype = io.RawSocket.prototype;
  dart.addRtiResources(io.RawSocket, ["io|RawSocket", "async|Stream"]);
  dart.setStaticMethodSignature(io.RawSocket, () => ['connect', 'startConnect']);
  dart.setLibraryUri(io.RawSocket, I[119]);
  io.Socket = class Socket extends core.Object {
    static connect(host, port, opts) {
      if (port == null) dart.nullFailed(I[141], 805, 43, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[141], 806, 27, "sourcePort");
      let timeout = opts && 'timeout' in opts ? opts.timeout : null;
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io.Socket._connect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort, timeout: timeout});
      }
      return overrides.socketConnect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort, timeout: timeout});
    }
    static startConnect(host, port, opts) {
      if (port == null) dart.nullFailed(I[141], 821, 64, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[141], 822, 27, "sourcePort");
      let overrides = io.IOOverrides.current;
      if (overrides == null) {
        return io.Socket._startConnect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort});
      }
      return overrides.socketStartConnect(host, port, {sourceAddress: sourceAddress, sourcePort: sourcePort});
    }
    static _connect(host, port, opts) {
      if (port == null) dart.nullFailed(I[121], 487, 52, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[121], 488, 35, "sourcePort");
      let timeout = opts && 'timeout' in opts ? opts.timeout : null;
      dart.throw(new core.UnsupportedError.new("Socket constructor"));
    }
    static _startConnect(host, port, opts) {
      if (port == null) dart.nullFailed(I[121], 493, 73, "port");
      let sourceAddress = opts && 'sourceAddress' in opts ? opts.sourceAddress : null;
      let sourcePort = opts && 'sourcePort' in opts ? opts.sourcePort : 0;
      if (sourcePort == null) dart.nullFailed(I[121], 494, 35, "sourcePort");
      dart.throw(new core.UnsupportedError.new("Socket constructor"));
    }
  };
  (io.Socket.new = function() {
    ;
  }).prototype = io.Socket.prototype;
  dart.addRtiResources(io.Socket, ["io|Socket", "async|Stream", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setStaticMethodSignature(io.Socket, () => ['connect', 'startConnect', '_connect', '_startConnect']);
  dart.setLibraryUri(io.Socket, I[119]);
  var data$ = dart.privateName(io, "Datagram.data");
  var address$ = dart.privateName(io, "Datagram.address");
  var port$ = dart.privateName(io, "Datagram.port");
  io.Datagram = class Datagram extends core.Object {
    get data() {
      return this[data$];
    }
    set data(value) {
      if (value == null) dart.nullFailed(I[141], 907, 13, "data");
      this[data$] = value;
    }
    get address() {
      return this[address$];
    }
    set address(value) {
      if (value == null) dart.nullFailed(I[141], 910, 19, "address");
      this[address$] = value;
    }
    get port() {
      return this[port$];
    }
    set port(value) {
      if (value == null) dart.nullFailed(I[141], 913, 7, "port");
      this[port$] = value;
    }
    static ['_#new#tearOff'](data, address, port) {
      if (data == null) dart.nullFailed(I[141], 915, 17, "data");
      if (address == null) dart.nullFailed(I[141], 915, 28, "address");
      if (port == null) dart.nullFailed(I[141], 915, 42, "port");
      return new io.Datagram.new(data, address, port);
    }
  };
  (io.Datagram.new = function(data, address, port) {
    if (data == null) dart.nullFailed(I[141], 915, 17, "data");
    if (address == null) dart.nullFailed(I[141], 915, 28, "address");
    if (port == null) dart.nullFailed(I[141], 915, 42, "port");
    this[data$] = data;
    this[address$] = address;
    this[port$] = port;
    ;
  }).prototype = io.Datagram.prototype;
  dart.addRtiResources(io.Datagram, ["io|Datagram"]);
  dart.setLibraryUri(io.Datagram, I[119]);
  dart.setFieldSignature(io.Datagram, () => dart.global.Object.setPrototypeOf({
    data: {type: T$.Uint8List(), isConst: false, isFinal: false, libraryUri: I[43]},
    address: {type: T$3.InternetAddress(), isConst: false, isFinal: false, libraryUri: I[119]},
    port: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.Datagram))));
  io.ResourceHandle = class ResourceHandle extends core.Object {
    static fromFile(file) {
      if (file == null) dart.nullFailed(I[121], 510, 52, "file");
      dart.throw(new core.UnsupportedError.new("ResourceHandle.fromFile constructor"));
    }
    static ['_#fromFile#tearOff'](file) {
      if (file == null) dart.nullFailed(I[121], 510, 52, "file");
      return io.ResourceHandle.fromFile(file);
    }
    static fromSocket(socket) {
      if (socket == null) dart.nullFailed(I[121], 515, 44, "socket");
      dart.throw(new core.UnsupportedError.new("ResourceHandle.fromSocket constructor"));
    }
    static ['_#fromSocket#tearOff'](socket) {
      if (socket == null) dart.nullFailed(I[121], 515, 44, "socket");
      return io.ResourceHandle.fromSocket(socket);
    }
    static fromRawSocket(rawSocket) {
      if (rawSocket == null) dart.nullFailed(I[121], 520, 50, "rawSocket");
      dart.throw(new core.UnsupportedError.new("ResourceHandle.fromRawSocket constructor"));
    }
    static ['_#fromRawSocket#tearOff'](rawSocket) {
      if (rawSocket == null) dart.nullFailed(I[121], 520, 50, "rawSocket");
      return io.ResourceHandle.fromRawSocket(rawSocket);
    }
    static fromRawDatagramSocket(rawDatagramSocket) {
      if (rawDatagramSocket == null) dart.nullFailed(I[121], 526, 25, "rawDatagramSocket");
      dart.throw(new core.UnsupportedError.new("ResourceHandle.fromRawDatagramSocket constructor"));
    }
    static ['_#fromRawDatagramSocket#tearOff'](rawDatagramSocket) {
      if (rawDatagramSocket == null) dart.nullFailed(I[121], 526, 25, "rawDatagramSocket");
      return io.ResourceHandle.fromRawDatagramSocket(rawDatagramSocket);
    }
    static fromStdin(stdin) {
      if (stdin == null) dart.nullFailed(I[121], 531, 42, "stdin");
      dart.throw(new core.UnsupportedError.new("ResourceHandle.fromStdin constructor"));
    }
    static ['_#fromStdin#tearOff'](stdin) {
      if (stdin == null) dart.nullFailed(I[121], 531, 42, "stdin");
      return io.ResourceHandle.fromStdin(stdin);
    }
    static fromStdout(stdout) {
      if (stdout == null) dart.nullFailed(I[121], 536, 44, "stdout");
      dart.throw(new core.UnsupportedError.new("ResourceHandle.fromStdout constructor"));
    }
    static ['_#fromStdout#tearOff'](stdout) {
      if (stdout == null) dart.nullFailed(I[121], 536, 44, "stdout");
      return io.ResourceHandle.fromStdout(stdout);
    }
    static fromReadPipe(pipe) {
      if (pipe == null) dart.nullFailed(I[121], 541, 48, "pipe");
      dart.throw(new core.UnsupportedError.new("ResourceHandle.fromReadPipe constructor"));
    }
    static ['_#fromReadPipe#tearOff'](pipe) {
      if (pipe == null) dart.nullFailed(I[121], 541, 48, "pipe");
      return io.ResourceHandle.fromReadPipe(pipe);
    }
    static fromWritePipe(pipe) {
      if (pipe == null) dart.nullFailed(I[121], 546, 50, "pipe");
      dart.throw(new core.UnsupportedError.new("ResourceHandle.fromWritePipe constructor"));
    }
    static ['_#fromWritePipe#tearOff'](pipe) {
      if (pipe == null) dart.nullFailed(I[121], 546, 50, "pipe");
      return io.ResourceHandle.fromWritePipe(pipe);
    }
  };
  (io.ResourceHandle[dart.mixinNew] = function() {
  }).prototype = io.ResourceHandle.prototype;
  dart.addRtiResources(io.ResourceHandle, ["io|ResourceHandle"]);
  dart.setStaticMethodSignature(io.ResourceHandle, () => ['fromFile', 'fromSocket', 'fromRawSocket', 'fromRawDatagramSocket', 'fromStdin', 'fromStdout', 'fromReadPipe', 'fromWritePipe']);
  dart.setLibraryUri(io.ResourceHandle, I[119]);
  io.SocketControlMessage = class SocketControlMessage extends core.Object {
    static fromHandles(handles) {
      if (handles == null) dart.nullFailed(I[121], 502, 65, "handles");
      dart.throw(new core.UnsupportedError.new("SocketControlMessage constructor"));
    }
    static ['_#fromHandles#tearOff'](handles) {
      if (handles == null) dart.nullFailed(I[121], 502, 65, "handles");
      return io.SocketControlMessage.fromHandles(handles);
    }
  };
  (io.SocketControlMessage[dart.mixinNew] = function() {
  }).prototype = io.SocketControlMessage.prototype;
  dart.addRtiResources(io.SocketControlMessage, ["io|SocketControlMessage"]);
  dart.setStaticMethodSignature(io.SocketControlMessage, () => ['fromHandles']);
  dart.setLibraryUri(io.SocketControlMessage, I[119]);
  var data$0 = dart.privateName(io, "SocketMessage.data");
  var controlMessages$ = dart.privateName(io, "SocketMessage.controlMessages");
  io.SocketMessage = class SocketMessage extends core.Object {
    get data() {
      return this[data$0];
    }
    set data(value) {
      super.data = value;
    }
    get controlMessages() {
      return this[controlMessages$];
    }
    set controlMessages(value) {
      super.controlMessages = value;
    }
    static ['_#new#tearOff'](data, controlMessages) {
      if (data == null) dart.nullFailed(I[141], 1079, 22, "data");
      if (controlMessages == null) dart.nullFailed(I[141], 1079, 33, "controlMessages");
      return new io.SocketMessage.new(data, controlMessages);
    }
  };
  (io.SocketMessage.new = function(data, controlMessages) {
    if (data == null) dart.nullFailed(I[141], 1079, 22, "data");
    if (controlMessages == null) dart.nullFailed(I[141], 1079, 33, "controlMessages");
    this[data$0] = data;
    this[controlMessages$] = controlMessages;
    ;
  }).prototype = io.SocketMessage.prototype;
  dart.addRtiResources(io.SocketMessage, ["io|SocketMessage"]);
  dart.setLibraryUri(io.SocketMessage, I[119]);
  dart.setFieldSignature(io.SocketMessage, () => dart.global.Object.setPrototypeOf({
    data: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]},
    controlMessages: {type: T$3.ListOfSocketControlMessage(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.SocketMessage))));
  var multicastInterface = dart.privateName(io, "RawDatagramSocket.multicastInterface");
  io.RawDatagramSocket = class RawDatagramSocket extends G.StreamOfRawSocketEvent() {
    get multicastInterface() {
      return this[multicastInterface];
    }
    set multicastInterface(value) {
      this[multicastInterface] = value;
    }
    static bind(host, port, opts) {
      if (port == null) dart.nullFailed(I[121], 604, 59, "port");
      let reuseAddress = opts && 'reuseAddress' in opts ? opts.reuseAddress : true;
      if (reuseAddress == null) dart.nullFailed(I[121], 605, 13, "reuseAddress");
      let reusePort = opts && 'reusePort' in opts ? opts.reusePort : false;
      if (reusePort == null) dart.nullFailed(I[121], 605, 39, "reusePort");
      let ttl = opts && 'ttl' in opts ? opts.ttl : 1;
      if (ttl == null) dart.nullFailed(I[121], 605, 62, "ttl");
      dart.throw(new core.UnsupportedError.new("RawDatagramSocket.bind"));
    }
  };
  (io.RawDatagramSocket.new = function() {
    this[multicastInterface] = null;
    this.$ti = this.$ti || T$3.RawDatagramSocket();
    dart.global.Object.getPrototypeOf(io.RawDatagramSocket).new.call(this);
    ;
  }).prototype = io.RawDatagramSocket.prototype;
  dart.addRtiResources(io.RawDatagramSocket, ["io|RawDatagramSocket"]);
  dart.setStaticMethodSignature(io.RawDatagramSocket, () => ['bind']);
  dart.setLibraryUri(io.RawDatagramSocket, I[119]);
  dart.setFieldSignature(io.RawDatagramSocket, () => dart.global.Object.setPrototypeOf({multicastInterface: {type: T$3.NetworkInterfaceN(), isConst: false, isFinal: false, libraryUri: I[119]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.RawDatagramSocket))));
  var message$7 = dart.privateName(io, "SocketException.message");
  var osError$2 = dart.privateName(io, "SocketException.osError");
  var address$0 = dart.privateName(io, "SocketException.address");
  var port$0 = dart.privateName(io, "SocketException.port");
  io.SocketException = class SocketException extends core.Object {
    get message() {
      return this[message$7];
    }
    set message(value) {
      super.message = value;
    }
    get osError() {
      return this[osError$2];
    }
    set osError(value) {
      super.osError = value;
    }
    get address() {
      return this[address$0];
    }
    set address(value) {
      super.address = value;
    }
    get port() {
      return this[port$0];
    }
    set port(value) {
      super.port = value;
    }
    static ['_#new#tearOff'](message, opts) {
      if (message == null) dart.nullFailed(I[141], 1295, 30, "message");
      let osError = opts && 'osError' in opts ? opts.osError : null;
      let address = opts && 'address' in opts ? opts.address : null;
      let port = opts && 'port' in opts ? opts.port : null;
      return new io.SocketException.new(message, {osError: osError, address: address, port: port});
    }
    static ['_#closed#tearOff']() {
      return new io.SocketException.closed();
    }
    toString() {
      let sb = new core.StringBuffer.new();
      sb.write("SocketException");
      if (this.message[$isNotEmpty]) {
        sb.write(": " + dart.str(this.message));
        if (this.osError != null) {
          sb.write(" (" + dart.str(this.osError) + ")");
        }
      } else if (this.osError != null) {
        sb.write(": " + dart.str(this.osError));
      }
      if (this.address != null) {
        sb.write(", address = " + dart.str(dart.nullCheck(this.address).host));
      }
      if (this.port != null) {
        sb.write(", port = " + dart.str(this.port));
      }
      return dart.toString(sb);
    }
  };
  (io.SocketException.new = function(message, opts) {
    if (message == null) dart.nullFailed(I[141], 1295, 30, "message");
    let osError = opts && 'osError' in opts ? opts.osError : null;
    let address = opts && 'address' in opts ? opts.address : null;
    let port = opts && 'port' in opts ? opts.port : null;
    this[message$7] = message;
    this[osError$2] = osError;
    this[address$0] = address;
    this[port$0] = port;
    ;
  }).prototype = io.SocketException.prototype;
  (io.SocketException.closed = function() {
    this[message$7] = "Socket has been closed";
    this[osError$2] = null;
    this[address$0] = null;
    this[port$0] = null;
    ;
  }).prototype = io.SocketException.prototype;
  dart.addRtiResources(io.SocketException, ["io|SocketException", "io|IOException", "core|Exception"]);
  dart.setLibraryUri(io.SocketException, I[119]);
  dart.setFieldSignature(io.SocketException, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    osError: {type: T$2.OSErrorN(), isConst: false, isFinal: true, libraryUri: I[119]},
    address: {type: T$3.InternetAddressN(), isConst: false, isFinal: true, libraryUri: I[119]},
    port: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.SocketException))));
  dart.defineExtensionMethods(io.SocketException, ['toString']);
  var _stream$0 = dart.privateName(io, "_stream");
  io._StdStream = class _StdStream extends G.StreamOfListOfint() {
    static ['_#new#tearOff'](_stream) {
      if (_stream == null) dart.nullFailed(I[142], 18, 19, "_stream");
      return new io._StdStream.new(_stream);
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      return this[_stream$0].listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
  };
  (io._StdStream.new = function(_stream) {
    if (_stream == null) dart.nullFailed(I[142], 18, 19, "_stream");
    this[_stream$0] = _stream;
    this.$ti = this.$ti || T$3._StdStream();
    dart.global.Object.getPrototypeOf(io._StdStream).new.call(this);
    ;
  }).prototype = io._StdStream.prototype;
  dart.addRtiResources(io._StdStream, ["io|_StdStream"]);
  dart.setMethodSignature(io._StdStream, () => dart.global.Object.setPrototypeOf({listen: T$3.Fn__ToStreamSubscriptionOfListOfint()}, dart.getMethods(dart.global.Object.getPrototypeOf(io._StdStream))));
  dart.setLibraryUri(io._StdStream, I[119]);
  dart.setFieldSignature(io._StdStream, () => dart.global.Object.setPrototypeOf({[_stream$0]: {type: T$2.StreamOfListOfint(), isConst: false, isFinal: true, libraryUri: I[39]}}, dart.getFields(dart.global.Object.getPrototypeOf(io._StdStream))));
  var _fd$ = dart.privateName(io, "_fd");
  io.Stdin = class Stdin extends io._StdStream {
    static ['_#_#tearOff'](stream, _fd) {
      if (stream == null) dart.nullFailed(I[142], 36, 29, "stream");
      if (_fd == null) dart.nullFailed(I[142], 36, 42, "_fd");
      return new io.Stdin.__(stream, _fd);
    }
    readLineSync(opts) {
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[192] || CT.C192;
      if (encoding == null) dart.nullFailed(I[142], 57, 17, "encoding");
      let retainNewlines = opts && 'retainNewlines' in opts ? opts.retainNewlines : false;
      if (retainNewlines == null) dart.nullFailed(I[142], 57, 49, "retainNewlines");
      let line = G.JSArrayOfint().of([]);
      let crIsNewline = dart.test(io.Platform.isWindows) && dart.equals(io.stdioType(io.stdin), io.StdioType.terminal) && !dart.test(this.lineMode);
      if (dart.test(retainNewlines)) {
        let byte = null;
        do {
          byte = this.readByteSync();
          if (dart.notNull(byte) < 0) {
            break;
          }
          line[$add](byte);
        } while (byte !== 10 && !(byte === 13 && crIsNewline));
        if (dart.test(line[$isEmpty])) {
          return null;
        }
      } else if (crIsNewline) {
        while (true) {
          let byte = this.readByteSync();
          if (dart.notNull(byte) < 0) {
            if (dart.test(line[$isEmpty])) return null;
            break;
          }
          if (byte === 10 || byte === 13) break;
          line[$add](byte);
        }
      } else {
        L5:
          while (true) {
            let byte = this.readByteSync();
            if (byte === 10) break;
            if (byte === 13) {
              do {
                byte = this.readByteSync();
                if (byte === 10) break L5;
                line[$add](13);
              } while (byte === 13);
            }
            if (dart.notNull(byte) < 0) {
              if (dart.test(line[$isEmpty])) return null;
              break;
            }
            line[$add](byte);
          }
      }
      return encoding.decode(line);
    }
    get echoMode() {
      dart.throw(new core.UnsupportedError.new("Stdin.echoMode"));
    }
    set echoMode(enabled) {
      if (enabled == null) dart.nullFailed(I[121], 691, 26, "enabled");
      dart.throw(new core.UnsupportedError.new("Stdin.echoMode"));
    }
    get echoNewlineMode() {
      dart.throw(new core.UnsupportedError.new("Stdin.echoNewlineMode"));
    }
    set echoNewlineMode(enabled) {
      if (enabled == null) dart.nullFailed(I[121], 701, 33, "enabled");
      dart.throw(new core.UnsupportedError.new("Stdin.echoNewlineMode"));
    }
    get lineMode() {
      dart.throw(new core.UnsupportedError.new("Stdin.lineMode"));
    }
    set lineMode(enabled) {
      if (enabled == null) dart.nullFailed(I[121], 711, 26, "enabled");
      dart.throw(new core.UnsupportedError.new("Stdin.lineMode"));
    }
    get supportsAnsiEscapes() {
      dart.throw(new core.UnsupportedError.new("Stdin.supportsAnsiEscapes"));
    }
    readByteSync() {
      dart.throw(new core.UnsupportedError.new("Stdin.readByteSync"));
    }
    get hasTerminal() {
      try {
        return dart.equals(io.stdioType(this), io.StdioType.terminal);
      } catch (t$36$35e) {
        let _ = dart.getThrown(t$36$35e);
        if (T$3.FileSystemException()[_is](_)) {
          return false;
        } else
          throw t$36$35e;
      }
    }
  };
  (io.Stdin.__ = function(stream, _fd) {
    if (stream == null) dart.nullFailed(I[142], 36, 29, "stream");
    if (_fd == null) dart.nullFailed(I[142], 36, 42, "_fd");
    this[_fd$] = _fd;
    this.$ti = this.$ti || T$3.Stdin();
    dart.global.Object.getPrototypeOf(io.Stdin).new.call(this, stream);
    ;
  }).prototype = io.Stdin.prototype;
  dart.addRtiResources(io.Stdin, ["io|Stdin", "async|Stream"]);
  dart.setMethodSignature(io.Stdin, () => dart.global.Object.setPrototypeOf({
    readLineSync: T$3.__ToStringN(),
    readByteSync: T$.VoidToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io.Stdin))));
  dart.setGetterSignature(io.Stdin, () => dart.global.Object.setPrototypeOf({
    echoMode: T$.bool(),
    echoNewlineMode: T$.bool(),
    lineMode: T$.bool(),
    supportsAnsiEscapes: T$.bool(),
    hasTerminal: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io.Stdin))));
  dart.setSetterSignature(io.Stdin, () => dart.global.Object.setPrototypeOf({
    echoMode: T$.bool(),
    echoNewlineMode: T$.bool(),
    lineMode: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(io.Stdin))));
  dart.setLibraryUri(io.Stdin, I[119]);
  dart.setFieldSignature(io.Stdin, () => dart.global.Object.setPrototypeOf({[_fd$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.Stdin))));
  var _nonBlocking = dart.privateName(io, "_nonBlocking");
  var _hasTerminal = dart.privateName(io, "_hasTerminal");
  var _terminalColumns = dart.privateName(io, "_terminalColumns");
  var _terminalLines = dart.privateName(io, "_terminalLines");
  var _windowsLineTerminator = dart.privateName(io, "_windowsLineTerminator");
  var _lastWrittenCharIsCR = dart.privateName(io, "_lastWrittenCharIsCR");
  var _write = dart.privateName(io, "_write");
  io._StdSink = class _StdSink extends core.Object {
    static ['_#new#tearOff'](_sink) {
      if (_sink == null) dart.nullFailed(I[142], 351, 17, "_sink");
      return new io._StdSink.new(_sink);
    }
    get lineTerminator() {
      return dart.test(this[_windowsLineTerminator]) ? "\r\n" : "\n";
    }
    set lineTerminator(lineTerminator) {
      if (lineTerminator == null) dart.nullFailed(I[142], 381, 29, "lineTerminator");
      if (lineTerminator === "\r\n") {
        if (!(!dart.test(this[_lastWrittenCharIsCR]) || dart.test(this[_windowsLineTerminator]))) dart.assertFailed(null, I[142], 383, 14, "!_lastWrittenCharIsCR || _windowsLineTerminator");
        this[_windowsLineTerminator] = true;
      } else if (lineTerminator === "\n") {
        this[_windowsLineTerminator] = false;
        this[_lastWrittenCharIsCR] = false;
      } else {
        dart.throw(new core.ArgumentError.value(lineTerminator, "lineTerminator", "invalid line terminator, must be one of \"\\r\" or \"\\r\\n\""));
      }
    }
    get encoding() {
      return this[_sink$1].encoding;
    }
    set encoding(encoding) {
      if (encoding == null) dart.nullFailed(I[142], 395, 30, "encoding");
      this[_sink$1].encoding = encoding;
    }
    [_write](object) {
      if (!dart.test(this[_windowsLineTerminator])) {
        this[_sink$1].write(object);
        return;
      }
      let string = dart.str(object);
      if (string[$isEmpty]) return;
      if (dart.test(this[_lastWrittenCharIsCR])) {
        string = string[$replaceAll](io._newLineDetectorAfterCr, "\r\n");
      } else {
        string = string[$replaceAll](io._newLineDetector, "\r\n");
      }
      this[_lastWrittenCharIsCR] = string[$endsWith]("\r");
      this[_sink$1].write(string);
    }
    write(object) {
      return this[_write](object);
    }
    writeln(object = "") {
      this[_write](object);
      this[_sink$1].write(dart.test(this[_windowsLineTerminator]) ? "\r\n" : "\n");
      this[_lastWrittenCharIsCR] = false;
    }
    writeAll(objects, sep = "") {
      if (objects == null) dart.nullFailed(I[142], 424, 26, "objects");
      if (sep == null) dart.nullFailed(I[142], 424, 43, "sep");
      let iterator = objects[$iterator];
      if (!dart.test(iterator.moveNext())) return;
      if (sep[$isEmpty]) {
        do {
          this[_write](iterator.current);
        } while (dart.test(iterator.moveNext()));
      } else {
        this[_write](iterator.current);
        while (dart.test(iterator.moveNext())) {
          this[_write](sep);
          this[_write](iterator.current);
        }
      }
    }
    add(data) {
      T$.ListOfint()[_as](data);
      if (data == null) dart.nullFailed(I[142], 440, 22, "data");
      this[_lastWrittenCharIsCR] = false;
      this[_sink$1].add(data);
    }
    addError(error, stackTrace = null) {
      if (error == null) dart.nullFailed(I[142], 445, 17, "error");
      this[_sink$1].addError(error, stackTrace);
    }
    writeCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[142], 449, 26, "charCode");
      if (!dart.test(this[_windowsLineTerminator])) {
        this[_sink$1].writeCharCode(charCode);
        return;
      }
      this[_write](core.String.fromCharCode(charCode));
    }
    addStream(stream) {
      T$2.StreamOfListOfint()[_as](stream);
      if (stream == null) dart.nullFailed(I[142], 458, 38, "stream");
      this[_lastWrittenCharIsCR] = false;
      return this[_sink$1].addStream(stream);
    }
    flush() {
      return this[_sink$1].flush();
    }
    close() {
      return this[_sink$1].close();
    }
    get done() {
      return this[_sink$1].done;
    }
  };
  (io._StdSink.new = function(_sink) {
    if (_sink == null) dart.nullFailed(I[142], 351, 17, "_sink");
    this[_windowsLineTerminator] = false;
    this[_lastWrittenCharIsCR] = false;
    this[_sink$1] = _sink;
    ;
  }).prototype = io._StdSink.prototype;
  dart.addRtiResources(io._StdSink, ["io|_StdSink", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setMethodSignature(io._StdSink, () => dart.global.Object.setPrototypeOf({
    [_write]: T$.ObjectNTovoid(),
    write: T$.ObjectNTovoid(),
    writeln: T$0.ObjectNTovoid$1(),
    writeAll: T$2.IterableAndStringTovoid(),
    add: T$.ObjectNTovoid(),
    addError: T$1.ObjectAndStackTraceNTovoid(),
    writeCharCode: T$.intTovoid(),
    addStream: T$.ObjectNToFuture(),
    flush: T$.VoidToFuture(),
    close: T$.VoidToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._StdSink))));
  dart.setGetterSignature(io._StdSink, () => dart.global.Object.setPrototypeOf({
    lineTerminator: T$.String(),
    encoding: T$2.Encoding(),
    done: T$0.Future()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io._StdSink))));
  dart.setSetterSignature(io._StdSink, () => dart.global.Object.setPrototypeOf({
    lineTerminator: T$.String(),
    encoding: T$2.Encoding()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(io._StdSink))));
  dart.setLibraryUri(io._StdSink, I[119]);
  dart.setFieldSignature(io._StdSink, () => dart.global.Object.setPrototypeOf({
    [_sink$1]: {type: T$3.IOSink(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_windowsLineTerminator]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lastWrittenCharIsCR]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io._StdSink))));
  io.Stdout = class Stdout extends io._StdSink {
    static ['_#_#tearOff'](sink, _fd) {
      if (sink == null) dart.nullFailed(I[142], 223, 19, "sink");
      if (_fd == null) dart.nullFailed(I[142], 223, 30, "_fd");
      return new io.Stdout.__(sink, _fd);
    }
    get hasTerminal() {
      return this[_hasTerminal](this[_fd$]);
    }
    get terminalColumns() {
      return this[_terminalColumns](this[_fd$]);
    }
    get terminalLines() {
      return this[_terminalLines](this[_fd$]);
    }
    get supportsAnsiEscapes() {
      return io.Stdout._supportsAnsiEscapes(this[_fd$]);
    }
    [_hasTerminal](fd) {
      if (fd == null) dart.nullFailed(I[121], 724, 25, "fd");
      dart.throw(new core.UnsupportedError.new("Stdout.hasTerminal"));
    }
    [_terminalColumns](fd) {
      if (fd == null) dart.nullFailed(I[121], 729, 28, "fd");
      dart.throw(new core.UnsupportedError.new("Stdout.terminalColumns"));
    }
    [_terminalLines](fd) {
      if (fd == null) dart.nullFailed(I[121], 734, 26, "fd");
      dart.throw(new core.UnsupportedError.new("Stdout.terminalLines"));
    }
    static _supportsAnsiEscapes(fd) {
      if (fd == null) dart.nullFailed(I[121], 739, 40, "fd");
      dart.throw(new core.UnsupportedError.new("Stdout.supportsAnsiEscapes"));
    }
    get nonBlocking() {
      let t$36190;
      t$36190 = this[_nonBlocking];
      return t$36190 == null ? this[_nonBlocking] = io.IOSink.new(new io._FileStreamConsumer.fromStdio(this[_fd$])) : t$36190;
    }
  };
  (io.Stdout.__ = function(sink, _fd) {
    if (sink == null) dart.nullFailed(I[142], 223, 19, "sink");
    if (_fd == null) dart.nullFailed(I[142], 223, 30, "_fd");
    this[_nonBlocking] = null;
    this[_fd$] = _fd;
    dart.global.Object.getPrototypeOf(io.Stdout).new.call(this, sink);
    ;
  }).prototype = io.Stdout.prototype;
  dart.addRtiResources(io.Stdout, ["io|Stdout", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setMethodSignature(io.Stdout, () => dart.global.Object.setPrototypeOf({
    [_hasTerminal]: T$.intTobool(),
    [_terminalColumns]: T$.intToint(),
    [_terminalLines]: T$.intToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io.Stdout))));
  dart.setStaticMethodSignature(io.Stdout, () => ['_supportsAnsiEscapes']);
  dart.setGetterSignature(io.Stdout, () => dart.global.Object.setPrototypeOf({
    hasTerminal: T$.bool(),
    terminalColumns: T$.int(),
    terminalLines: T$.int(),
    supportsAnsiEscapes: T$.bool(),
    nonBlocking: T$3.IOSink()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io.Stdout))));
  dart.setLibraryUri(io.Stdout, I[119]);
  dart.setFieldSignature(io.Stdout, () => dart.global.Object.setPrototypeOf({
    [_fd$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_nonBlocking]: {type: T$3.IOSinkN(), isConst: false, isFinal: false, libraryUri: I[119]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.Stdout))));
  var message$8 = dart.privateName(io, "StdoutException.message");
  var osError$3 = dart.privateName(io, "StdoutException.osError");
  io.StdoutException = class StdoutException extends core.Object {
    get message() {
      return this[message$8];
    }
    set message(value) {
      super.message = value;
    }
    get osError() {
      return this[osError$3];
    }
    set osError(value) {
      super.osError = value;
    }
    static ['_#new#tearOff'](message, osError = null) {
      if (message == null) dart.nullFailed(I[142], 284, 30, "message");
      return new io.StdoutException.new(message, osError);
    }
    toString() {
      return "StdoutException: " + dart.str(this.message) + (this.osError == null ? "" : ", " + dart.str(this.osError));
    }
  };
  (io.StdoutException.new = function(message, osError = null) {
    if (message == null) dart.nullFailed(I[142], 284, 30, "message");
    this[message$8] = message;
    this[osError$3] = osError;
    ;
  }).prototype = io.StdoutException.prototype;
  dart.addRtiResources(io.StdoutException, ["io|StdoutException", "io|IOException", "core|Exception"]);
  dart.setLibraryUri(io.StdoutException, I[119]);
  dart.setFieldSignature(io.StdoutException, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    osError: {type: T$2.OSErrorN(), isConst: false, isFinal: true, libraryUri: I[119]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.StdoutException))));
  dart.defineExtensionMethods(io.StdoutException, ['toString']);
  var message$9 = dart.privateName(io, "StdinException.message");
  var osError$4 = dart.privateName(io, "StdinException.osError");
  io.StdinException = class StdinException extends core.Object {
    get message() {
      return this[message$9];
    }
    set message(value) {
      super.message = value;
    }
    get osError() {
      return this[osError$4];
    }
    set osError(value) {
      super.osError = value;
    }
    static ['_#new#tearOff'](message, osError = null) {
      if (message == null) dart.nullFailed(I[142], 299, 29, "message");
      return new io.StdinException.new(message, osError);
    }
    toString() {
      return "StdinException: " + dart.str(this.message) + (this.osError == null ? "" : ", " + dart.str(this.osError));
    }
  };
  (io.StdinException.new = function(message, osError = null) {
    if (message == null) dart.nullFailed(I[142], 299, 29, "message");
    this[message$9] = message;
    this[osError$4] = osError;
    ;
  }).prototype = io.StdinException.prototype;
  dart.addRtiResources(io.StdinException, ["io|StdinException", "io|IOException", "core|Exception"]);
  dart.setLibraryUri(io.StdinException, I[119]);
  dart.setFieldSignature(io.StdinException, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    osError: {type: T$2.OSErrorN(), isConst: false, isFinal: true, libraryUri: I[119]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(io.StdinException))));
  dart.defineExtensionMethods(io.StdinException, ['toString']);
  io._StdConsumer = class _StdConsumer extends core.Object {
    static ['_#new#tearOff'](fd) {
      if (fd == null) dart.nullFailed(I[142], 309, 20, "fd");
      return new io._StdConsumer.new(fd);
    }
    addStream(stream) {
      T$2.StreamOfListOfint()[_as](stream);
      if (stream == null) dart.nullFailed(I[142], 311, 38, "stream");
      let completer = async.Completer.new();
      let sub = null;
      let t$36$35sub$35isSet = false;
      function t$36$35sub$35get() {
        return t$36$35sub$35isSet ? sub : dart.throw(new _internal.LateError.localNI("sub"));
      }
      function t$36$35sub$35set(sub$35param) {
        if (sub$35param == null) dart.nullFailed(I[142], 313, 40, "sub#param");
        t$36$35sub$35isSet = true;
        return sub = sub$35param;
      }
      t$36$35sub$35set(stream.listen(dart.fn(data => {
        if (data == null) dart.nullFailed(I[142], 314, 26, "data");
        try {
          this[_file].writeFromSync(data);
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          let s = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](e)) {
            t$36$35sub$35get().cancel();
            completer.completeError(e, s);
          } else
            throw t$36$35e;
        }
      }, T$.ListOfintTovoid()), {onError: dart.bind(completer, 'completeError'), onDone: T$3.dynamicTovoid$1()[_as](dart.bind(completer, 'complete')), cancelOnError: true}));
      return completer.future;
    }
    close() {
      this[_file].closeSync();
      return async.Future.value();
    }
  };
  (io._StdConsumer.new = function(fd) {
    if (fd == null) dart.nullFailed(I[142], 309, 20, "fd");
    this[_file] = io._File._openStdioSync(fd);
    ;
  }).prototype = io._StdConsumer.prototype;
  dart.addRtiResources(io._StdConsumer, ["io|_StdConsumer", "async|StreamConsumer"]);
  dart.setMethodSignature(io._StdConsumer, () => dart.global.Object.setPrototypeOf({
    addStream: T$.ObjectNToFuture(),
    close: T$.VoidToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._StdConsumer))));
  dart.setLibraryUri(io._StdConsumer, I[119]);
  dart.setFieldSignature(io._StdConsumer, () => dart.global.Object.setPrototypeOf({[_file]: {type: T$2.RandomAccessFile(), isConst: false, isFinal: true, libraryUri: I[119]}}, dart.getFields(dart.global.Object.getPrototypeOf(io._StdConsumer))));
  var name$12 = dart.privateName(io, "StdioType.name");
  io.StdioType = class StdioType extends core.Object {
    get name() {
      return this[name$12];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#_#tearOff'](name) {
      if (name == null) dart.nullFailed(I[142], 476, 26, "name");
      return new io.StdioType.__(name);
    }
    toString() {
      return "StdioType: " + dart.str(this.name);
    }
  };
  (io.StdioType.__ = function(name) {
    if (name == null) dart.nullFailed(I[142], 476, 26, "name");
    this[name$12] = name;
    ;
  }).prototype = io.StdioType.prototype;
  dart.addRtiResources(io.StdioType, ["io|StdioType"]);
  dart.setLibraryUri(io.StdioType, I[119]);
  dart.setFieldSignature(io.StdioType, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io.StdioType))));
  dart.setStaticFieldSignature(io.StdioType, () => ['terminal', 'pipe', 'file', 'other']);
  dart.defineExtensionMethods(io.StdioType, ['toString']);
  dart.defineLazy(io.StdioType, {
    /*io.StdioType.terminal*/get terminal() {
      return C[250] || CT.C250;
    },
    /*io.StdioType.pipe*/get pipe() {
      return C[251] || CT.C251;
    },
    /*io.StdioType.file*/get file() {
      return C[252] || CT.C252;
    },
    /*io.StdioType.other*/get other() {
      return C[253] || CT.C253;
    }
  }, false);
  io._StdIOUtils = class _StdIOUtils extends core.Object {
    static _getStdioOutputStream(fd) {
      if (fd == null) dart.nullFailed(I[121], 626, 36, "fd");
      dart.throw(new core.UnsupportedError.new("StdIOUtils._getStdioOutputStream"));
    }
    static _getStdioInputStream(fd) {
      if (fd == null) dart.nullFailed(I[121], 621, 41, "fd");
      dart.throw(new core.UnsupportedError.new("StdIOUtils._getStdioInputStream"));
    }
    static _socketType(socket) {
      if (socket == null) dart.nullFailed(I[121], 631, 33, "socket");
      dart.throw(new core.UnsupportedError.new("StdIOUtils._socketType"));
    }
    static _getStdioHandleType(fd) {
      if (fd == null) dart.nullFailed(I[121], 636, 34, "fd");
      dart.throw(new core.UnsupportedError.new("StdIOUtils._getStdioHandleType"));
    }
    static ['_#new#tearOff']() {
      return new io._StdIOUtils.new();
    }
  };
  (io._StdIOUtils.new = function() {
    ;
  }).prototype = io._StdIOUtils.prototype;
  dart.addRtiResources(io._StdIOUtils, ["io|_StdIOUtils"]);
  dart.setStaticMethodSignature(io._StdIOUtils, () => ['_getStdioOutputStream', '_getStdioInputStream', '_socketType', '_getStdioHandleType']);
  dart.setLibraryUri(io._StdIOUtils, I[119]);
  io.SystemEncoding = class SystemEncoding extends convert.Encoding {
    static ['_#new#tearOff']() {
      return new io.SystemEncoding.new();
    }
    get name() {
      return "system";
    }
    encode(input) {
      T$.String()[_as](input);
      if (input == null) dart.nullFailed(I[143], 26, 27, "input");
      return this.encoder.convert(input);
    }
    decode(encoded) {
      T$.ListOfint()[_as](encoded);
      if (encoded == null) dart.nullFailed(I[143], 27, 27, "encoded");
      return this.decoder.convert(encoded);
    }
    get encoder() {
      if (io.Platform.operatingSystem === "windows") {
        return C[254] || CT.C254;
      } else {
        return C[148] || CT.C148;
      }
    }
    get decoder() {
      if (io.Platform.operatingSystem === "windows") {
        return C[255] || CT.C255;
      } else {
        return C[147] || CT.C147;
      }
    }
  };
  (io.SystemEncoding.new = function() {
    this.$ti = this.$ti || T$3.SystemEncoding();
    dart.global.Object.getPrototypeOf(io.SystemEncoding).new.call(this);
    ;
  }).prototype = io.SystemEncoding.prototype;
  dart.addRtiResources(io.SystemEncoding, ["io|SystemEncoding"]);
  dart.setGetterSignature(io.SystemEncoding, () => dart.global.Object.setPrototypeOf({
    name: T$.String(),
    encoder: T$3.ConverterOfString$ListOfint(),
    decoder: T$3.ConverterOfListOfint$String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(io.SystemEncoding))));
  dart.setLibraryUri(io.SystemEncoding, I[119]);
  io._WindowsCodePageEncoder = class _WindowsCodePageEncoder extends G.ConverterOfString$ListOfint() {
    static ['_#new#tearOff']() {
      return new io._WindowsCodePageEncoder.new();
    }
    convert(input) {
      T$.String()[_as](input);
      if (input == null) dart.nullFailed(I[143], 49, 28, "input");
      let encoded = io._WindowsCodePageEncoder._encodeString(input);
      if (encoded == null) {
        dart.throw(new core.FormatException.new("Invalid character for encoding"));
      }
      return encoded;
    }
    startChunkedConversion(sink) {
      T$2.SinkOfListOfint()[_as](sink);
      if (sink == null) dart.nullFailed(I[143], 58, 63, "sink");
      return new io._WindowsCodePageEncoderSink.new(sink);
    }
    static _encodeString(string) {
      if (string == null) dart.nullFailed(I[121], 652, 41, "string");
      dart.throw(new core.UnsupportedError.new("_WindowsCodePageEncoder._encodeString"));
    }
  };
  (io._WindowsCodePageEncoder.new = function() {
    this.$ti = this.$ti || T$3._WindowsCodePageEncoder();
    dart.global.Object.getPrototypeOf(io._WindowsCodePageEncoder).new.call(this);
    ;
  }).prototype = io._WindowsCodePageEncoder.prototype;
  dart.addRtiResources(io._WindowsCodePageEncoder, ["io|_WindowsCodePageEncoder"]);
  dart.setMethodSignature(io._WindowsCodePageEncoder, () => dart.global.Object.setPrototypeOf({
    convert: T$2.ObjectNToListOfint(),
    startChunkedConversion: T$2.ObjectNToStringConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._WindowsCodePageEncoder))));
  dart.setStaticMethodSignature(io._WindowsCodePageEncoder, () => ['_encodeString']);
  dart.setLibraryUri(io._WindowsCodePageEncoder, I[119]);
  io._WindowsCodePageEncoderSink = class _WindowsCodePageEncoderSink extends convert.StringConversionSink {
    static ['_#new#tearOff'](_sink) {
      if (_sink == null) dart.nullFailed(I[143], 71, 36, "_sink");
      return new io._WindowsCodePageEncoderSink.new(_sink);
    }
    close() {
      this[_sink$1].close();
    }
    add(string) {
      T$.String()[_as](string);
      if (string == null) dart.nullFailed(I[143], 77, 19, "string");
      let encoded = io._WindowsCodePageEncoder._encodeString(string);
      if (encoded == null) {
        dart.throw(new core.FormatException.new("Invalid character for encoding"));
      }
      this[_sink$1].add(encoded);
    }
    addSlice(source, start, end, isLast) {
      if (source == null) dart.nullFailed(I[143], 85, 24, "source");
      if (start == null) dart.nullFailed(I[143], 85, 36, "start");
      if (end == null) dart.nullFailed(I[143], 85, 47, "end");
      if (isLast == null) dart.nullFailed(I[143], 85, 57, "isLast");
      if (start !== 0 || end !== source.length) {
        source = source[$substring](start, end);
      }
      this.add(source);
      if (dart.test(isLast)) this.close();
    }
  };
  (io._WindowsCodePageEncoderSink.new = function(_sink) {
    if (_sink == null) dart.nullFailed(I[143], 71, 36, "_sink");
    this[_sink$1] = _sink;
    dart.global.Object.getPrototypeOf(io._WindowsCodePageEncoderSink).new.call(this);
    ;
  }).prototype = io._WindowsCodePageEncoderSink.prototype;
  dart.addRtiResources(io._WindowsCodePageEncoderSink, ["io|_WindowsCodePageEncoderSink"]);
  dart.setMethodSignature(io._WindowsCodePageEncoderSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    addSlice: T$2.StringAndintAndint__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._WindowsCodePageEncoderSink))));
  dart.setLibraryUri(io._WindowsCodePageEncoderSink, I[119]);
  dart.setFieldSignature(io._WindowsCodePageEncoderSink, () => dart.global.Object.setPrototypeOf({[_sink$1]: {type: T$2.SinkOfListOfint(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io._WindowsCodePageEncoderSink))));
  io._WindowsCodePageDecoder = class _WindowsCodePageDecoder extends G.ConverterOfListOfint$String() {
    static ['_#new#tearOff']() {
      return new io._WindowsCodePageDecoder.new();
    }
    convert(input) {
      T$.ListOfint()[_as](input);
      if (input == null) dart.nullFailed(I[143], 97, 28, "input");
      return io._WindowsCodePageDecoder._decodeBytes(input);
    }
    startChunkedConversion(sink) {
      T$2.SinkOfString()[_as](sink);
      if (sink == null) dart.nullFailed(I[143], 102, 58, "sink");
      return new io._WindowsCodePageDecoderSink.new(sink);
    }
    static _decodeBytes(bytes) {
      if (bytes == null) dart.nullFailed(I[121], 644, 40, "bytes");
      dart.throw(new core.UnsupportedError.new("_WindowsCodePageDecoder._decodeBytes"));
    }
  };
  (io._WindowsCodePageDecoder.new = function() {
    this.$ti = this.$ti || T$3._WindowsCodePageDecoder();
    dart.global.Object.getPrototypeOf(io._WindowsCodePageDecoder).new.call(this);
    ;
  }).prototype = io._WindowsCodePageDecoder.prototype;
  dart.addRtiResources(io._WindowsCodePageDecoder, ["io|_WindowsCodePageDecoder"]);
  dart.setMethodSignature(io._WindowsCodePageDecoder, () => dart.global.Object.setPrototypeOf({
    convert: T$.ObjectNToString(),
    startChunkedConversion: T$2.ObjectNToByteConversionSink()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._WindowsCodePageDecoder))));
  dart.setStaticMethodSignature(io._WindowsCodePageDecoder, () => ['_decodeBytes']);
  dart.setLibraryUri(io._WindowsCodePageDecoder, I[119]);
  io._WindowsCodePageDecoderSink = class _WindowsCodePageDecoderSink extends convert.ByteConversionSink {
    static ['_#new#tearOff'](_sink) {
      if (_sink == null) dart.nullFailed(I[143], 115, 36, "_sink");
      return new io._WindowsCodePageDecoderSink.new(_sink);
    }
    close() {
      this[_sink$1].close();
    }
    add(bytes) {
      T$.ListOfint()[_as](bytes);
      if (bytes == null) dart.nullFailed(I[143], 121, 22, "bytes");
      this[_sink$1].add(io._WindowsCodePageDecoder._decodeBytes(bytes));
    }
  };
  (io._WindowsCodePageDecoderSink.new = function(_sink) {
    if (_sink == null) dart.nullFailed(I[143], 115, 36, "_sink");
    this[_sink$1] = _sink;
    dart.global.Object.getPrototypeOf(io._WindowsCodePageDecoderSink).new.call(this);
    ;
  }).prototype = io._WindowsCodePageDecoderSink.prototype;
  dart.addRtiResources(io._WindowsCodePageDecoderSink, ["io|_WindowsCodePageDecoderSink"]);
  dart.setMethodSignature(io._WindowsCodePageDecoderSink, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    add: T$.ObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(io._WindowsCodePageDecoderSink))));
  dart.setLibraryUri(io._WindowsCodePageDecoderSink, I[119]);
  dart.setFieldSignature(io._WindowsCodePageDecoderSink, () => dart.global.Object.setPrototypeOf({[_sink$1]: {type: T$2.SinkOfString(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(io._WindowsCodePageDecoderSink))));
  io.RawSynchronousSocket = class RawSynchronousSocket extends core.Object {
    static connectSync(host, port) {
      if (port == null) dart.nullFailed(I[121], 562, 61, "port");
      dart.throw(new core.UnsupportedError.new("RawSynchronousSocket.connectSync"));
    }
  };
  (io.RawSynchronousSocket.new = function() {
    ;
  }).prototype = io.RawSynchronousSocket.prototype;
  dart.addRtiResources(io.RawSynchronousSocket, ["io|RawSynchronousSocket"]);
  dart.setStaticMethodSignature(io.RawSynchronousSocket, () => ['connectSync']);
  dart.setLibraryUri(io.RawSynchronousSocket, I[119]);
  io._checkForErrorResponse = function _checkForErrorResponse(response, message, path) {
    if (message == null) dart.nullFailed(I[120], 47, 54, "message");
    if (path == null) dart.nullFailed(I[120], 47, 70, "path");
    if (T$.ListOfObjectN()[_is](response) && !dart.equals(response[$_get](0), 0)) {
      switch (response[$_get](0)) {
        case 1:
          {
            dart.throw(new core.ArgumentError.new(dart.str(message) + ": " + dart.str(path)));
          }
        case 2:
          {
            let err = new io.OSError.new(T$.String()[_as](response[$_get](2)), T$.int()[_as](response[$_get](1)));
            dart.throw(io.FileSystemException._fromOSError(err, message, path));
          }
        case 3:
          {
            dart.throw(new io.FileSystemException.new("File closed", path));
          }
        default:
          {
            dart.throw(new core.AssertionError.new("Unknown error"));
          }
      }
    }
  };
  io._ensureFastAndSerializableByteData = function _ensureFastAndSerializableByteData(buffer, start, end) {
    if (buffer == null) dart.nullFailed(I[120], 121, 15, "buffer");
    if (start == null) dart.nullFailed(I[120], 121, 27, "start");
    if (end == null) dart.nullFailed(I[120], 121, 38, "end");
    if (T$.Uint8List()[_is](buffer) && buffer[$buffer][$lengthInBytes] == buffer[$length]) {
      return new io._BufferAndStart.new(buffer, start);
    }
    let length = dart.notNull(end) - dart.notNull(start);
    let newBuffer = _native_typed_data.NativeUint8List.new(length);
    newBuffer[$setRange](0, length, buffer, start);
    return new io._BufferAndStart.new(newBuffer, 0);
  };
  io._validateZLibWindowBits = function _validateZLibWindowBits(windowBits) {
    if (windowBits == null) dart.nullFailed(I[122], 541, 34, "windowBits");
    if (8 > dart.notNull(windowBits) || 15 < dart.notNull(windowBits)) {
      dart.throw(new core.RangeError.range(windowBits, 8, 15));
    }
  };
  io._validateZLibeLevel = function _validateZLibeLevel(level) {
    if (level == null) dart.nullFailed(I[122], 549, 30, "level");
    if (-1 > dart.notNull(level) || 9 < dart.notNull(level)) {
      dart.throw(new core.RangeError.range(level, -1, 9));
    }
  };
  io._validateZLibMemLevel = function _validateZLibMemLevel(memLevel) {
    if (memLevel == null) dart.nullFailed(I[122], 555, 32, "memLevel");
    if (1 > dart.notNull(memLevel) || 9 < dart.notNull(memLevel)) {
      dart.throw(new core.RangeError.range(memLevel, 1, 9));
    }
  };
  io._validateZLibStrategy = function _validateZLibStrategy(strategy) {
    if (strategy == null) dart.nullFailed(I[122], 562, 32, "strategy");
    let strategies = C[256] || CT.C256;
    if (strategies[$indexOf](strategy) === -1) {
      dart.throw(new core.ArgumentError.new("Unsupported 'strategy'"));
    }
  };
  io._createHttpProfileRequestFromProfileMap = function _createHttpProfileRequestFromProfileMap(requestProfile, opts) {
    if (requestProfile == null) dart.nullFailed(I[132], 18, 26, "requestProfile");
    let ref = opts && 'ref' in opts ? opts.ref : null;
    if (ref == null) dart.nullFailed(I[132], 19, 20, "ref");
    return async.async(T$2.MapOfString$dynamic(), function* _createHttpProfileRequestFromProfileMap() {
      let responseData = T$2.MapOfString$dynamic()[_as](requestProfile[$_get]("responseData"));
      return (() => {
        let t$36194 = new (G.IdentityMapOfString$dynamic()).new();
        t$36194[$_set]("type", (dart.test(ref) ? "@" : "") + "HttpProfileRequest");
        t$36194[$_set]("id", dart.nullCheck(requestProfile[$_get]("id")));
        t$36194[$_set]("isolateId", dart.nullCheck(requestProfile[$_get]("isolateId")));
        t$36194[$_set]("method", dart.nullCheck(requestProfile[$_get]("requestMethod")));
        t$36194[$_set]("uri", dart.nullCheck(requestProfile[$_get]("requestUri")));
        t$36194[$_set]("events", dart.nullCheck(requestProfile[$_get]("events")));
        t$36194[$_set]("startTime", dart.nullCheck(requestProfile[$_get]("requestStartTimestamp")));
        if (requestProfile[$_get]("requestEndTimestamp") != null) t$36194[$_set]("endTime", requestProfile[$_get]("requestEndTimestamp"));
        t$36194[$_set]("request", dart.nullCheck(requestProfile[$_get]("requestData")));
        t$36194[$_set]("response", responseData);
        if (!dart.test(ref) && requestProfile[$_get]("requestEndTimestamp") != null) t$36194[$_set]("requestBody", dart.nullCheck(requestProfile[$_get]("requestBodyBytes")));
        if (!dart.test(ref) && responseData[$_get]("endTime") != null) t$36194[$_set]("responseBody", dart.nullCheck(requestProfile[$_get]("responseBodyBytes")));
        return t$36194;
      })();
    });
  };
  io._success = function _success() {
    return convert.json.encode(new (G.IdentityMapOfString$String()).from(["type", "Success"]));
  };
  io._invalidArgument = function _invalidArgument(argument, value) {
    if (argument == null) dart.nullFailed(I[132], 146, 32, "argument");
    return "Value for parameter '" + dart.str(argument) + "' is not valid: " + dart.str(value);
  };
  io._missingArgument = function _missingArgument(argument) {
    if (argument == null) dart.nullFailed(I[132], 149, 32, "argument");
    return "Parameter '" + dart.str(argument) + "' is required";
  };
  io._getHttpEnableTimelineLogging = function _getHttpEnableTimelineLogging() {
    return convert.json.encode(new (G.IdentityMapOfString$Object()).from(["type", "HttpTimelineLoggingState", "enabled", _http.HttpClient.enableTimelineLogging]));
  };
  io._setHttpEnableTimelineLogging = function _setHttpEnableTimelineLogging(parameters) {
    if (parameters == null) dart.nullFailed(I[132], 156, 58, "parameters");
    if (!dart.test(parameters[$containsKey]("enabled"))) {
      dart.throw(io._missingArgument("enabled"));
    }
    let enable = dart.nullCheck(parameters[$_get]("enabled"))[$toLowerCase]();
    if (enable !== "true" && enable !== "false") {
      dart.throw(io._invalidArgument("enabled", enable));
    }
    _http.HttpClient.enableTimelineLogging = enable === "true";
    return io._success();
  };
  io._getHttpProfileRequest = function _getHttpProfileRequest(parameters) {
    if (parameters == null) dart.nullFailed(I[132], 169, 59, "parameters");
    return async.async(T$.String(), function* _getHttpProfileRequest() {
      let t$36195;
      if (!dart.test(parameters[$containsKey]("id"))) {
        dart.throw(io._missingArgument("id"));
      }
      let id = dart.nullCheck(parameters[$_get]("id"));
      let request = null;
      if (id[$startsWith]("from_package/")) {
        let profileMap = collection['IterableExtensions|elementAtOrNull'](T$2.MapOfString$dynamic(), developer.getHttpClientProfilingData(), dart.notNull(core.int.parse(id[$substring]("from_package/".length))) - 1);
        request = profileMap == null ? null : (yield io._createHttpProfileRequestFromProfileMap(profileMap, {ref: false}));
      } else {
        request = (t$36195 = _http.HttpProfiler.getHttpProfileRequest(id), t$36195 == null ? null : t$36195.toJson({ref: false}));
      }
      if (request == null) {
        dart.throw("Unable to find request with id: '" + id + "'");
      }
      return convert.json.encode(request);
    });
  };
  io._socketProfilingEnabled = function _socketProfilingEnabled(parameters) {
    if (parameters == null) dart.nullFailed(I[132], 191, 52, "parameters");
    if (dart.test(parameters[$containsKey]("enabled"))) {
      let enable = dart.nullCheck(parameters[$_get]("enabled"))[$toLowerCase]();
      if (enable !== "true" && enable !== "false") {
        dart.throw(io._invalidArgument("enabled", enable));
      }
      enable === "true" ? io._SocketProfile.start() : io._SocketProfile.pause();
    }
    return convert.json.encode(new (G.IdentityMapOfString$Object()).from(["type", "SocketProfilingState", "enabled", io._SocketProfile.enableSocketProfiling]));
  };
  io.exit = function exit(code) {
    if (code == null) dart.nullFailed(I[135], 53, 16, "code");
    core.ArgumentError.checkNotNull(T$.int(), code, "code");
    if (!dart.test(io._EmbedderConfig._mayExit)) {
      dart.throw(new core.UnsupportedError.new("This embedder disallows calling dart:io's exit()"));
    }
    io._ProcessUtils._exit(code);
    dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
  };
  io.sleep = function sleep(duration) {
    if (duration == null) dart.nullFailed(I[135], 97, 21, "duration");
    let milliseconds = duration.inMilliseconds;
    if (dart.notNull(milliseconds) < 0) {
      dart.throw(new core.ArgumentError.new("sleep: duration cannot be negative"));
    }
    if (!dart.test(io._EmbedderConfig._maySleep)) {
      dart.throw(new core.UnsupportedError.new("This embedder disallows calling dart:io's sleep()"));
    }
    io._ProcessUtils._sleep(milliseconds);
  };
  io._setStdioFDs = function _setStdioFDs(stdin, stdout, stderr) {
    if (stdin == null) dart.nullFailed(I[142], 491, 23, "stdin");
    if (stdout == null) dart.nullFailed(I[142], 491, 34, "stdout");
    if (stderr == null) dart.nullFailed(I[142], 491, 46, "stderr");
    io._stdinFD = stdin;
    io._stdoutFD = stdout;
    io._stderrFD = stderr;
  };
  io.stdioType = function stdioType(object) {
    if (T$3._StdStream()[_is](object)) {
      object = object[_stream$0];
    } else if (dart.equals(object, io.stdout) || dart.equals(object, io.stderr)) {
      let stdiofd = dart.equals(object, io.stdout) ? io._stdoutFD : io._stderrFD;
      let type = io._StdIOUtils._getStdioHandleType(stdiofd);
      if (T$2.OSError()[_is](type)) {
        dart.throw(new io.FileSystemException.new("Failed to get type of stdio handle (fd " + dart.str(stdiofd) + ")", "", type));
      }
      switch (type) {
        case 0:
          {
            return io.StdioType.terminal;
          }
        case 1:
          {
            return io.StdioType.pipe;
          }
        case 2:
          {
            return io.StdioType.file;
          }
      }
    }
    if (T$2._FileStream()[_is](object)) {
      return io.StdioType.file;
    }
    if (T$3.Socket()[_is](object)) {
      let socketType = io._StdIOUtils._socketType(object);
      if (socketType == null) return io.StdioType.other;
      switch (socketType) {
        case 0:
          {
            return io.StdioType.terminal;
          }
        case 1:
          {
            return io.StdioType.pipe;
          }
        case 2:
          {
            return io.StdioType.file;
          }
      }
    }
    if (T$2._IOSinkImpl()[_is](object)) {
      try {
        if (T$3._FileStreamConsumer()[_is](object[_target$0])) {
          return io.StdioType.file;
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e;
      }
    }
    return io.StdioType.other;
  };
  dart.copyProperties(io, {
    set exitCode(code) {
      if (code == null) dart.nullFailed(I[135], 72, 23, "code");
      core.ArgumentError.checkNotNull(T$.int(), code, "code");
      io._ProcessUtils._setExitCode(code);
    },
    get exitCode() {
      return io._ProcessUtils._getExitCode();
    },
    get pid() {
      return io._ProcessUtils._pid(null);
    },
    get stdin() {
      let t$36196, t$36196$;
      t$36196$ = (t$36196 = io.IOOverrides.current, t$36196 == null ? null : t$36196.stdin);
      return t$36196$ == null ? io._stdin : t$36196$;
    },
    get stdout() {
      let t$36196, t$36196$;
      t$36196$ = (t$36196 = io.IOOverrides.current, t$36196 == null ? null : t$36196.stdout);
      return t$36196$ == null ? io._stdout : t$36196$;
    },
    get stderr() {
      let t$36196, t$36196$;
      t$36196$ = (t$36196 = io.IOOverrides.current, t$36196 == null ? null : t$36196.stderr);
      return t$36196$ == null ? io._stderr : t$36196$;
    }
  });
  dart.defineLazy(io, {
    /*io._successResponse*/get _successResponse() {
      return 0;
    },
    /*io._illegalArgumentResponse*/get _illegalArgumentResponse() {
      return 1;
    },
    /*io._osErrorResponse*/get _osErrorResponse() {
      return 2;
    },
    /*io._fileClosedResponse*/get _fileClosedResponse() {
      return 3;
    },
    /*io._errorResponseErrorType*/get _errorResponseErrorType() {
      return 0;
    },
    /*io._osErrorResponseErrorCode*/get _osErrorResponseErrorCode() {
      return 1;
    },
    /*io._osErrorResponseMessage*/get _osErrorResponseMessage() {
      return 2;
    },
    /*io._ePerm*/get _ePerm() {
      return 1;
    },
    /*io._eNoEnt*/get _eNoEnt() {
      return 2;
    },
    /*io._eAccess*/get _eAccess() {
      return 13;
    },
    /*io._eExist*/get _eExist() {
      return 17;
    },
    /*io._errorFileNotFound*/get _errorFileNotFound() {
      return 2;
    },
    /*io._errorPathNotFound*/get _errorPathNotFound() {
      return 3;
    },
    /*io._errorAccessDenied*/get _errorAccessDenied() {
      return 5;
    },
    /*io._errorInvalidDrive*/get _errorInvalidDrive() {
      return 15;
    },
    /*io._errorCurrentDirectory*/get _errorCurrentDirectory() {
      return 16;
    },
    /*io._errorNoMoreFiles*/get _errorNoMoreFiles() {
      return 18;
    },
    /*io._errorWriteProtect*/get _errorWriteProtect() {
      return 19;
    },
    /*io._errorBadLength*/get _errorBadLength() {
      return 24;
    },
    /*io._errorSharingViolation*/get _errorSharingViolation() {
      return 32;
    },
    /*io._errorLockViolation*/get _errorLockViolation() {
      return 33;
    },
    /*io._errorBadNetpath*/get _errorBadNetpath() {
      return 53;
    },
    /*io._errorNetworkAccessDenied*/get _errorNetworkAccessDenied() {
      return 65;
    },
    /*io._errorBadNetName*/get _errorBadNetName() {
      return 67;
    },
    /*io._errorFileExists*/get _errorFileExists() {
      return 80;
    },
    /*io._errorDriveLocked*/get _errorDriveLocked() {
      return 108;
    },
    /*io._errorBadPathName*/get _errorBadPathName() {
      return 161;
    },
    /*io._errorAlreadyExists*/get _errorAlreadyExists() {
      return 183;
    },
    /*io._errorFilenameExedRange*/get _errorFilenameExedRange() {
      return 206;
    },
    /*io.zlib*/get zlib() {
      return C[257] || CT.C257;
    },
    /*io.gzip*/get gzip() {
      return C[258] || CT.C258;
    },
    /*io._blockSize*/get _blockSize() {
      return 65536;
    },
    /*io._maxReadSize*/get _maxReadSize() {
      return 16777216;
    },
    /*io._versionMajor*/get _versionMajor() {
      return 4;
    },
    /*io._versionMinor*/get _versionMinor() {
      return 0;
    },
    /*io._tcpSocket*/get _tcpSocket() {
      return "tcp";
    },
    /*io._udpSocket*/get _udpSocket() {
      return "udp";
    },
    /*io._ioOverridesToken*/get _ioOverridesToken() {
      return new core.Object.new();
    },
    /*io._nextServiceId*/get _nextServiceId() {
      return 1;
    },
    set _nextServiceId(value) {
      if (value == null) dart.nullFailed(I[140], 7, 5, "_nextServiceId");
    },
    /*io._stdioHandleTypeTerminal*/get _stdioHandleTypeTerminal() {
      return 0;
    },
    /*io._stdioHandleTypePipe*/get _stdioHandleTypePipe() {
      return 1;
    },
    /*io._stdioHandleTypeFile*/get _stdioHandleTypeFile() {
      return 2;
    },
    /*io._stdioHandleTypeSocket*/get _stdioHandleTypeSocket() {
      return 3;
    },
    /*io._stdioHandleTypeOther*/get _stdioHandleTypeOther() {
      return 4;
    },
    /*io._stdioHandleTypeError*/get _stdioHandleTypeError() {
      return 5;
    },
    /*io._newLineDetector*/get _newLineDetector() {
      return core.RegExp.new("(?<!\\r)\\n");
    },
    /*io._newLineDetectorAfterCr*/get _newLineDetectorAfterCr() {
      return core.RegExp.new("(?<!\\r|^)\\n");
    },
    /*io._stdin*/get _stdin() {
      return io._StdIOUtils._getStdioInputStream(io._stdinFD);
    },
    /*io._stdout*/get _stdout() {
      return T$3.Stdout()[_as](io._StdIOUtils._getStdioOutputStream(io._stdoutFD));
    },
    /*io._stderr*/get _stderr() {
      return T$3.Stdout()[_as](io._StdIOUtils._getStdioOutputStream(io._stderrFD));
    },
    /*io._stdinFD*/get _stdinFD() {
      return 0;
    },
    set _stdinFD(value) {
      if (value == null) dart.nullFailed(I[142], 486, 5, "_stdinFD");
    },
    /*io._stdoutFD*/get _stdoutFD() {
      return 1;
    },
    set _stdoutFD(value) {
      if (value == null) dart.nullFailed(I[142], 487, 5, "_stdoutFD");
    },
    /*io._stderrFD*/get _stderrFD() {
      return 2;
    },
    set _stderrFD(value) {
      if (value == null) dart.nullFailed(I[142], 488, 5, "_stderrFD");
    },
    /*io.systemEncoding*/get systemEncoding() {
      return C[192] || CT.C192;
    }
  }, false);
  isolate._ReceivePort = class _ReceivePort extends async.Stream {
    static ['_#new#tearOff'](debugName = "") {
      if (debugName == null) dart.nullFailed(I[144], 106, 24, "debugName");
      return new isolate._ReceivePort.new(debugName);
    }
    close() {
    }
    get sendPort() {
      return isolate._unsupported();
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : true;
      return isolate._unsupported();
    }
  };
  (isolate._ReceivePort.new = function(debugName = "") {
    if (debugName == null) dart.nullFailed(I[144], 106, 24, "debugName");
    this.$ti = this.$ti || T$3._ReceivePort();
    dart.global.Object.getPrototypeOf(isolate._ReceivePort).new.call(this);
    ;
  }).prototype = isolate._ReceivePort.prototype;
  dart.addRtiResources(isolate._ReceivePort, ["isolate|_ReceivePort", "isolate|ReceivePort", "async|Stream"]);
  dart.setMethodSignature(isolate._ReceivePort, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    listen: T$3.Fn__ToStreamSubscription()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(isolate._ReceivePort))));
  dart.setGetterSignature(isolate._ReceivePort, () => dart.global.Object.setPrototypeOf({sendPort: T$3.SendPort()}, dart.getGetters(dart.global.Object.getPrototypeOf(isolate._ReceivePort))));
  dart.setLibraryUri(isolate._ReceivePort, I[138]);
  var message$10 = dart.privateName(isolate, "IsolateSpawnException.message");
  isolate.IsolateSpawnException = class IsolateSpawnException extends core.Object {
    get message() {
      return this[message$10];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message) {
      if (message == null) dart.nullFailed(I[145], 37, 30, "message");
      return new isolate.IsolateSpawnException.new(message);
    }
    toString() {
      return "IsolateSpawnException: " + dart.str(this.message);
    }
  };
  (isolate.IsolateSpawnException.new = function(message) {
    if (message == null) dart.nullFailed(I[145], 37, 30, "message");
    this[message$10] = message;
    ;
  }).prototype = isolate.IsolateSpawnException.prototype;
  dart.addRtiResources(isolate.IsolateSpawnException, ["isolate|IsolateSpawnException", "core|Exception"]);
  dart.setLibraryUri(isolate.IsolateSpawnException, I[138]);
  dart.setFieldSignature(isolate.IsolateSpawnException, () => dart.global.Object.setPrototypeOf({message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(isolate.IsolateSpawnException))));
  dart.defineExtensionMethods(isolate.IsolateSpawnException, ['toString']);
  var controlPort$ = dart.privateName(isolate, "Isolate.controlPort");
  var pauseCapability$ = dart.privateName(isolate, "Isolate.pauseCapability");
  var terminateCapability$ = dart.privateName(isolate, "Isolate.terminateCapability");
  var _pause = dart.privateName(isolate, "_pause");
  isolate.Isolate = class Isolate extends core.Object {
    get controlPort() {
      return this[controlPort$];
    }
    set controlPort(value) {
      super.controlPort = value;
    }
    get pauseCapability() {
      return this[pauseCapability$];
    }
    set pauseCapability(value) {
      super.pauseCapability = value;
    }
    get terminateCapability() {
      return this[terminateCapability$];
    }
    set terminateCapability(value) {
      super.terminateCapability = value;
    }
    get debugName() {
      return isolate._unsupported();
    }
    static ['_#new#tearOff'](controlPort, opts) {
      if (controlPort == null) dart.nullFailed(I[145], 150, 16, "controlPort");
      let pauseCapability = opts && 'pauseCapability' in opts ? opts.pauseCapability : null;
      let terminateCapability = opts && 'terminateCapability' in opts ? opts.terminateCapability : null;
      return new isolate.Isolate.new(controlPort, {pauseCapability: pauseCapability, terminateCapability: terminateCapability});
    }
    static run(R, computation, opts) {
      if (computation == null) dart.nullFailed(I[145], 253, 39, "computation");
      let debugName = opts && 'debugName' in opts ? opts.debugName : null;
      let result = async.Completer$(R).new();
      let resultPort = isolate.RawReceivePort.new();
      resultPort.handler = dart.fn(response => {
        resultPort.close();
        if (response == null) {
          result.completeError(new isolate.RemoteError.new("Computation ended without result", ""), core.StackTrace.empty);
          return;
        }
        let list = T$.ListOfObjectN()[_as](response);
        if (list[$length] === 2) {
          let remoteError = list[$_get](0);
          let remoteStack = list[$_get](1);
          if (T$.StackTrace()[_is](remoteStack)) {
            result.completeError(dart.nullCheck(remoteError), remoteStack);
          } else {
            let error = new isolate.RemoteError.new(dart.toString(remoteError), dart.toString(remoteStack));
            result.completeError(error, error.stackTrace);
          }
        } else {
          if (!(list[$length] === 1)) dart.assertFailed(null, I[145], 280, 16, "list.length == 1");
          result.complete(R[_as](list[$_get](0)));
        }
      }, T$0.dynamicToNull());
      try {
        isolate.Isolate.spawn(R[_eval]("isolate|_RemoteRunner<0>"), C[259] || CT.C259, new (isolate._RemoteRunner$(R)).new(computation, resultPort.sendPort), {onError: resultPort.sendPort, onExit: resultPort.sendPort, errorsAreFatal: true, debugName: debugName}).then(T$.void(), dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[145], 291, 24, "_");
        }, T$3.IsolateToNull()), {onError: dart.fn((error, stack) => {
            resultPort.close();
            result.completeError(T$.Object()[_as](error), T$.StackTraceN()[_as](stack));
          }, T$.dynamicAnddynamicToNull())});
      } catch (t$36$35e) {
        let t$36$35ex = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](t$36$35ex)) {
          resultPort.close();
          dart.rethrow(t$36$35e);
        } else
          throw t$36$35e;
      }
      return result.future;
    }
    static get current() {
      return isolate._unsupported();
    }
    static get packageConfig() {
      return isolate._unsupported();
    }
    static get packageConfigSync() {
      return isolate._unsupported();
    }
    static resolvePackageUri(packageUri) {
      if (packageUri == null) dart.nullFailed(I[144], 29, 45, "packageUri");
      return isolate._unsupported();
    }
    static resolvePackageUriSync(packageUri) {
      if (packageUri == null) dart.nullFailed(I[144], 32, 41, "packageUri");
      return isolate._unsupported();
    }
    static spawn(T, entryPoint, message, opts) {
      if (entryPoint == null) dart.nullFailed(I[144], 35, 40, "entryPoint");
      let paused = opts && 'paused' in opts ? opts.paused : false;
      if (paused == null) dart.nullFailed(I[144], 36, 17, "paused");
      let errorsAreFatal = opts && 'errorsAreFatal' in opts ? opts.errorsAreFatal : true;
      if (errorsAreFatal == null) dart.nullFailed(I[144], 37, 16, "errorsAreFatal");
      let onExit = opts && 'onExit' in opts ? opts.onExit : null;
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let debugName = opts && 'debugName' in opts ? opts.debugName : null;
      return isolate._unsupported();
    }
    static spawnUri(uri, args, message, opts) {
      if (uri == null) dart.nullFailed(I[144], 44, 39, "uri");
      if (args == null) dart.nullFailed(I[144], 44, 57, "args");
      let paused = opts && 'paused' in opts ? opts.paused : false;
      if (paused == null) dart.nullFailed(I[144], 45, 17, "paused");
      let onExit = opts && 'onExit' in opts ? opts.onExit : null;
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let errorsAreFatal = opts && 'errorsAreFatal' in opts ? opts.errorsAreFatal : true;
      if (errorsAreFatal == null) dart.nullFailed(I[144], 48, 16, "errorsAreFatal");
      let checked = opts && 'checked' in opts ? opts.checked : null;
      let environment = opts && 'environment' in opts ? opts.environment : null;
      let packageRoot = opts && 'packageRoot' in opts ? opts.packageRoot : null;
      let packageConfig = opts && 'packageConfig' in opts ? opts.packageConfig : null;
      let automaticPackageResolution = opts && 'automaticPackageResolution' in opts ? opts.automaticPackageResolution : false;
      if (automaticPackageResolution == null) dart.nullFailed(I[144], 53, 16, "automaticPackageResolution");
      let debugName = opts && 'debugName' in opts ? opts.debugName : null;
      return isolate._unsupported();
    }
    pause(resumeCapability = null) {
      resumeCapability == null ? resumeCapability = isolate.Capability.new() : null;
      this[_pause](resumeCapability);
      return resumeCapability;
    }
    [_pause](resumeCapability) {
      if (resumeCapability == null) dart.nullFailed(I[144], 58, 26, "resumeCapability");
      return isolate._unsupported();
    }
    resume(resumeCapability) {
      if (resumeCapability == null) dart.nullFailed(I[144], 61, 26, "resumeCapability");
      return isolate._unsupported();
    }
    addOnExitListener(responsePort, opts) {
      if (responsePort == null) dart.nullFailed(I[144], 64, 35, "responsePort");
      let response = opts && 'response' in opts ? opts.response : null;
      return isolate._unsupported();
    }
    removeOnExitListener(responsePort) {
      if (responsePort == null) dart.nullFailed(I[144], 68, 38, "responsePort");
      return isolate._unsupported();
    }
    setErrorsFatal(errorsAreFatal) {
      if (errorsAreFatal == null) dart.nullFailed(I[144], 71, 28, "errorsAreFatal");
      return isolate._unsupported();
    }
    kill(opts) {
      let priority = opts && 'priority' in opts ? opts.priority : 1;
      if (priority == null) dart.nullFailed(I[144], 74, 18, "priority");
      return isolate._unsupported();
    }
    ping(responsePort, opts) {
      if (responsePort == null) dart.nullFailed(I[144], 76, 22, "responsePort");
      let response = opts && 'response' in opts ? opts.response : null;
      let priority = opts && 'priority' in opts ? opts.priority : 0;
      if (priority == null) dart.nullFailed(I[144], 77, 34, "priority");
      return isolate._unsupported();
    }
    addErrorListener(port) {
      if (port == null) dart.nullFailed(I[144], 81, 34, "port");
      return isolate._unsupported();
    }
    removeErrorListener(port) {
      if (port == null) dart.nullFailed(I[144], 84, 37, "port");
      return isolate._unsupported();
    }
    get errors() {
      let controller = async.StreamController.broadcast({sync: true});
      let port = null;
      function handleError(message) {
        let listMessage = T$.ListOfObjectN()[_as](message);
        let errorDescription = T$.String()[_as](listMessage[$_get](0));
        let stackDescription = T$.String()[_as](listMessage[$_get](1));
        let error = new isolate.RemoteError.new(errorDescription, stackDescription);
        controller.addError(error, error.stackTrace);
      }
      dart.fn(handleError, T$.ObjectNTovoid());
      controller.onListen = dart.fn(() => {
        let receivePort = isolate.RawReceivePort.new(handleError);
        port = receivePort;
        this.addErrorListener(receivePort.sendPort);
      }, T$.VoidTovoid());
      controller.onCancel = dart.fn(() => {
        let listenPort = dart.nullCheck(port);
        port = null;
        this.removeErrorListener(listenPort.sendPort);
        listenPort.close();
      }, T$0.VoidToNull());
      return controller.stream;
    }
    static exit(finalMessagePort = null, message = null) {
      isolate._unsupported();
      return dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
    }
  };
  (isolate.Isolate.new = function(controlPort, opts) {
    if (controlPort == null) dart.nullFailed(I[145], 150, 16, "controlPort");
    let pauseCapability = opts && 'pauseCapability' in opts ? opts.pauseCapability : null;
    let terminateCapability = opts && 'terminateCapability' in opts ? opts.terminateCapability : null;
    this[controlPort$] = controlPort;
    this[pauseCapability$] = pauseCapability;
    this[terminateCapability$] = terminateCapability;
    ;
  }).prototype = isolate.Isolate.prototype;
  dart.addRtiResources(isolate.Isolate, ["isolate|Isolate"]);
  dart.setMethodSignature(isolate.Isolate, () => dart.global.Object.setPrototypeOf({
    pause: T$3.CapabilityNToCapability(),
    [_pause]: T$3.CapabilityTovoid(),
    resume: T$3.CapabilityTovoid(),
    addOnExitListener: T$3.SendPort__Tovoid(),
    removeOnExitListener: T$3.SendPortTovoid(),
    setErrorsFatal: T$1.boolTovoid(),
    kill: T$3.__Tovoid$4(),
    ping: T$3.SendPort__Tovoid$1(),
    addErrorListener: T$3.SendPortTovoid(),
    removeErrorListener: T$3.SendPortTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(isolate.Isolate))));
  dart.setStaticMethodSignature(isolate.Isolate, () => ['run', 'resolvePackageUri', 'resolvePackageUriSync', 'spawn', 'spawnUri', 'exit']);
  dart.setGetterSignature(isolate.Isolate, () => dart.global.Object.setPrototypeOf({
    debugName: T$.StringN(),
    errors: T$3.Stream()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(isolate.Isolate))));
  dart.setStaticGetterSignature(isolate.Isolate, () => ['current', 'packageConfig', 'packageConfigSync']);
  dart.setLibraryUri(isolate.Isolate, I[138]);
  dart.setFieldSignature(isolate.Isolate, () => dart.global.Object.setPrototypeOf({
    controlPort: {type: T$3.SendPort(), isConst: false, isFinal: true, libraryUri: I[138]},
    pauseCapability: {type: T$3.CapabilityN(), isConst: false, isFinal: true, libraryUri: I[138]},
    terminateCapability: {type: T$3.CapabilityN(), isConst: false, isFinal: true, libraryUri: I[138]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(isolate.Isolate))));
  dart.setStaticFieldSignature(isolate.Isolate, () => ['immediate', 'beforeNextEvent']);
  dart.defineLazy(isolate.Isolate, {
    /*isolate.Isolate.immediate*/get immediate() {
      return 0;
    },
    /*isolate.Isolate.beforeNextEvent*/get beforeNextEvent() {
      return 1;
    }
  }, false);
  isolate.SendPort = class SendPort extends core.Object {};
  (isolate.SendPort.new = function() {
    ;
  }).prototype = isolate.SendPort.prototype;
  dart.addRtiResources(isolate.SendPort, ["isolate|SendPort", "isolate|Capability"]);
  dart.setLibraryUri(isolate.SendPort, I[138]);
  isolate.ReceivePort = class ReceivePort extends core.Object {
    static ['_#new#tearOff'](debugName = "") {
      if (debugName == null) dart.nullFailed(I[144], 95, 31, "debugName");
      return new isolate._ReceivePort.new(debugName);
    }
    static fromRawReceivePort(rawPort) {
      if (rawPort == null) dart.nullFailed(I[144], 98, 57, "rawPort");
      return isolate._unsupported();
    }
    static ['_#fromRawReceivePort#tearOff'](rawPort) {
      if (rawPort == null) dart.nullFailed(I[144], 98, 57, "rawPort");
      return isolate.ReceivePort.fromRawReceivePort(rawPort);
    }
  };
  (isolate.ReceivePort[dart.mixinNew] = function() {
  }).prototype = isolate.ReceivePort.prototype;
  dart.addRtiResources(isolate.ReceivePort, ["isolate|ReceivePort", "async|Stream"]);
  dart.setStaticMethodSignature(isolate.ReceivePort, () => ['new', 'fromRawReceivePort']);
  dart.setLibraryUri(isolate.ReceivePort, I[138]);
  isolate.RawReceivePort = class RawReceivePort extends core.Object {
    static new(handler = null, debugName = "") {
      if (debugName == null) dart.nullFailed(I[144], 122, 53, "debugName");
      return isolate._unsupported();
    }
    static ['_#new#tearOff'](handler = null, debugName = "") {
      if (debugName == null) dart.nullFailed(I[144], 122, 53, "debugName");
      return isolate.RawReceivePort.new(handler, debugName);
    }
  };
  (isolate.RawReceivePort[dart.mixinNew] = function() {
  }).prototype = isolate.RawReceivePort.prototype;
  dart.addRtiResources(isolate.RawReceivePort, ["isolate|RawReceivePort"]);
  dart.setStaticMethodSignature(isolate.RawReceivePort, () => ['new']);
  dart.setLibraryUri(isolate.RawReceivePort, I[138]);
  var stackTrace$0 = dart.privateName(isolate, "RemoteError.stackTrace");
  var _description = dart.privateName(isolate, "_description");
  isolate.RemoteError = class RemoteError extends core.Object {
    get stackTrace() {
      return this[stackTrace$0];
    }
    set stackTrace(value) {
      super.stackTrace = value;
    }
    static ['_#new#tearOff'](description, stackDescription) {
      if (description == null) dart.nullFailed(I[145], 1019, 22, "description");
      if (stackDescription == null) dart.nullFailed(I[145], 1019, 42, "stackDescription");
      return new isolate.RemoteError.new(description, stackDescription);
    }
    toString() {
      return this[_description];
    }
  };
  (isolate.RemoteError.new = function(description, stackDescription) {
    if (description == null) dart.nullFailed(I[145], 1019, 22, "description");
    if (stackDescription == null) dart.nullFailed(I[145], 1019, 42, "stackDescription");
    this[_description] = description;
    this[stackTrace$0] = new core._StringStackTrace.new(stackDescription);
    ;
  }).prototype = isolate.RemoteError.prototype;
  dart.addRtiResources(isolate.RemoteError, ["isolate|RemoteError", "core|Error"]);
  dart.setLibraryUri(isolate.RemoteError, I[138]);
  dart.setFieldSignature(isolate.RemoteError, () => dart.global.Object.setPrototypeOf({
    [_description]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    stackTrace: {type: T$.StackTrace(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(isolate.RemoteError))));
  dart.defineExtensionMethods(isolate.RemoteError, ['toString']);
  dart.defineExtensionAccessors(isolate.RemoteError, ['stackTrace']);
  isolate.TransferableTypedData = class TransferableTypedData extends core.Object {
    static fromList(list) {
      if (list == null) dart.nullFailed(I[144], 135, 58, "list");
      return isolate._unsupported();
    }
    static ['_#fromList#tearOff'](list) {
      if (list == null) dart.nullFailed(I[144], 135, 58, "list");
      return isolate.TransferableTypedData.fromList(list);
    }
  };
  (isolate.TransferableTypedData[dart.mixinNew] = function() {
  }).prototype = isolate.TransferableTypedData.prototype;
  dart.addRtiResources(isolate.TransferableTypedData, ["isolate|TransferableTypedData"]);
  dart.setStaticMethodSignature(isolate.TransferableTypedData, () => ['fromList']);
  dart.setLibraryUri(isolate.TransferableTypedData, I[138]);
  var _run$0 = dart.privateName(isolate, "_run");
  isolate._RemoteRunner$ = dart.generic(R => {
    var __t$_RemoteRunnerOfR = () => (__t$_RemoteRunnerOfR = dart.constFn(R[_eval]("isolate|_RemoteRunner<0>")))();
    var __t$FutureOfR = () => (__t$FutureOfR = dart.constFn(R[_eval]("async|Future<0>")))();
    var __t$VoidToFutureOrOfR = () => (__t$VoidToFutureOrOfR = dart.constFn(R[_eval]("0/()")))();
    class _RemoteRunner extends core.Object {
      static ['_#new#tearOff'](R, computation, resultPort) {
        if (computation == null) dart.nullFailed(I[145], 1074, 22, "computation");
        if (resultPort == null) dart.nullFailed(I[145], 1074, 40, "resultPort");
        return new (isolate._RemoteRunner$(R)).new(computation, resultPort);
      }
      static _remoteExecute(runner) {
        if (runner == null) dart.nullFailed(I[145], 1083, 53, "runner");
        runner[_run$0]();
      }
      [_run$0]() {
        return async.async(T$.void(), (function* _run() {
          let result = null;
          try {
            let potentiallyAsyncResult = this.computation();
            if (__t$FutureOfR()[_is](potentiallyAsyncResult)) {
              result = (yield potentiallyAsyncResult);
            } else {
              result = potentiallyAsyncResult;
            }
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            let s = dart.stackTrace(t$36$35e);
            if (T$.Object()[_is](e)) {
              isolate.Isolate.exit(this.resultPort, isolate._RemoteRunner._list2(e, s));
              dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
            } else
              throw t$36$35e;
          }
          isolate.Isolate.exit(this.resultPort, isolate._RemoteRunner._list1(result));
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
        }).bind(this));
      }
      static _list1(value) {
        return G.ListOfObjectN().filled(1, value);
      }
      static _list2(value1, value2) {
        let t$36199;
        t$36199 = G.ListOfObjectN().filled(2, value1);
        return (() => {
          t$36199[$_set](1, value2);
          return t$36199;
        })();
      }
    }
    (_RemoteRunner.new = function(computation, resultPort) {
      if (computation == null) dart.nullFailed(I[145], 1074, 22, "computation");
      if (resultPort == null) dart.nullFailed(I[145], 1074, 40, "resultPort");
      this.computation = computation;
      this.resultPort = resultPort;
      this.$ti = this.$ti || __t$_RemoteRunnerOfR();
      ;
    }).prototype = _RemoteRunner.prototype;
    dart.addRtiResources(_RemoteRunner, ["isolate|_RemoteRunner"]);
    dart.setMethodSignature(_RemoteRunner, () => dart.global.Object.setPrototypeOf({[_run$0]: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_RemoteRunner))));
    dart.setStaticMethodSignature(_RemoteRunner, () => ['_remoteExecute', '_list1', '_list2']);
    dart.setLibraryUri(_RemoteRunner, I[138]);
    dart.setFieldSignature(_RemoteRunner, () => dart.global.Object.setPrototypeOf({
      computation: {type: __t$VoidToFutureOrOfR(), isConst: false, isFinal: true},
      resultPort: {type: T$3.SendPort(), isConst: false, isFinal: true, libraryUri: I[138]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_RemoteRunner))));
    return _RemoteRunner;
  });
  isolate._RemoteRunner = isolate._RemoteRunner$();
  isolate.Capability = class Capability extends core.Object {
    static new() {
      return isolate._unsupported();
    }
    static ['_#new#tearOff']() {
      return isolate.Capability.new();
    }
  };
  (isolate.Capability[dart.mixinNew] = function() {
  }).prototype = isolate.Capability.prototype;
  dart.addRtiResources(isolate.Capability, ["isolate|Capability"]);
  dart.setStaticMethodSignature(isolate.Capability, () => ['new']);
  dart.setLibraryUri(isolate.Capability, I[138]);
  isolate._unsupported = function _unsupported$() {
    dart.throw(new core.UnsupportedError.new("dart:isolate is not supported on dart4web"));
  };
  var _dartObj$ = dart.privateName(js, "_dartObj");
  js._DartObject = class _DartObject extends core.Object {
    static ['_#new#tearOff'](_dartObj) {
      if (_dartObj == null) dart.nullFailed(I[146], 333, 20, "_dartObj");
      return new js._DartObject.new(_dartObj);
    }
  };
  (js._DartObject.new = function(_dartObj) {
    if (_dartObj == null) dart.nullFailed(I[146], 333, 20, "_dartObj");
    this[_dartObj$] = _dartObj;
    ;
  }).prototype = js._DartObject.prototype;
  dart.addRtiResources(js._DartObject, ["js|_DartObject"]);
  dart.setLibraryUri(js._DartObject, I[147]);
  dart.setFieldSignature(js._DartObject, () => dart.global.Object.setPrototypeOf({[_dartObj$]: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(js._DartObject))));
  var _jsObject$ = dart.privateName(js, "_jsObject");
  js.JsObject = class JsObject extends core.Object {
    static ['_#_fromJs#tearOff'](_jsObject) {
      if (_jsObject == null) dart.nullFailed(I[146], 27, 25, "_jsObject");
      return new js.JsObject._fromJs(_jsObject);
    }
    static _convertDataTree(data) {
      if (data == null) dart.nullFailed(I[146], 57, 34, "data");
      let _convertedObjects = new _js_helper.IdentityMap.new();
      function _convert(o) {
        if (dart.test(_convertedObjects[$containsKey](o))) {
          return _convertedObjects[$_get](o);
        }
        if (T$.Map()[_is](o)) {
          let convertedMap = {};
          _convertedObjects[$_set](o, convertedMap);
          for (let key of o[$keys]) {
            convertedMap[key] = _convert(o[$_get](key));
          }
          return convertedMap;
        } else if (T$.Iterable()[_is](o)) {
          let convertedList = [];
          _convertedObjects[$_set](o, convertedList);
          convertedList[$addAll](o[$map](T$.dynamic(), _convert));
          return convertedList;
        } else {
          return js._convertToJS(o);
        }
      }
      dart.fn(_convert, T$1.ObjectNTodynamic());
      return _convert(data);
    }
    static new(constructor, $arguments = null) {
      if (constructor == null) dart.nullFailed(I[146], 32, 31, "constructor");
      let ctor = constructor[_jsObject$];
      if ($arguments == null) {
        return js._wrapToDart(new ctor());
      }
      let unwrapped = core.List.from($arguments[$map](T$.dynamic(), C[260] || CT.C260));
      return js._wrapToDart(new ctor(...unwrapped));
    }
    static ['_#new#tearOff'](constructor, $arguments = null) {
      if (constructor == null) dart.nullFailed(I[146], 32, 31, "constructor");
      return js.JsObject.new(constructor, $arguments);
    }
    static fromBrowserObject(object) {
      if (object == null) dart.nullFailed(I[146], 42, 45, "object");
      if (typeof object == 'number' || typeof object == 'string' || typeof object == 'boolean' || object == null) {
        dart.throw(new core.ArgumentError.new("object cannot be a num, string, bool, or null"));
      }
      return js._wrapToDart(dart.nullCheck(js._convertToJS(object)));
    }
    static ['_#fromBrowserObject#tearOff'](object) {
      if (object == null) dart.nullFailed(I[146], 42, 45, "object");
      return js.JsObject.fromBrowserObject(object);
    }
    static jsify(object) {
      if (object == null) dart.nullFailed(I[146], 50, 33, "object");
      if (!T$.Map()[_is](object) && !T$.Iterable()[_is](object)) {
        dart.throw(new core.ArgumentError.new("object must be a Map or Iterable"));
      }
      return js._wrapToDart(T$.Object()[_as](js.JsObject._convertDataTree(object)));
    }
    static ['_#jsify#tearOff'](object) {
      if (object == null) dart.nullFailed(I[146], 50, 33, "object");
      return js.JsObject.jsify(object);
    }
    _get(property) {
      if (property == null) dart.nullFailed(I[146], 85, 30, "property");
      if (!(typeof property == 'string') && !(typeof property == 'number')) {
        dart.throw(new core.ArgumentError.new("property is not a String or num"));
      }
      return js._convertToDart(this[_jsObject$][property]);
    }
    _set(property, value$) {
      let value = value$;
      if (property == null) dart.nullFailed(I[146], 93, 28, "property");
      if (!(typeof property == 'string') && !(typeof property == 'number')) {
        dart.throw(new core.ArgumentError.new("property is not a String or num"));
      }
      this[_jsObject$][property] = js._convertToJS(value);
      return value$;
    }
    get hashCode() {
      return 0;
    }
    _equals(other) {
      if (other == null) return false;
      return T$3.JsObject()[_is](other) && this[_jsObject$] === other[_jsObject$];
    }
    hasProperty(property) {
      if (property == null) dart.nullFailed(I[146], 105, 27, "property");
      if (!(typeof property == 'string') && !(typeof property == 'number')) {
        dart.throw(new core.ArgumentError.new("property is not a String or num"));
      }
      return property in this[_jsObject$];
    }
    deleteProperty(property) {
      if (property == null) dart.nullFailed(I[146], 113, 30, "property");
      if (!(typeof property == 'string') && !(typeof property == 'number')) {
        dart.throw(new core.ArgumentError.new("property is not a String or num"));
      }
      delete this[_jsObject$][property];
    }
    instanceof(type) {
      if (type == null) dart.nullFailed(I[146], 121, 30, "type");
      return this[_jsObject$] instanceof js._convertToJS(type);
    }
    toString() {
      try {
        return String(this[_jsObject$]);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          return super[$toString]();
        } else
          throw t$36$35e;
      }
    }
    callMethod(method, args = null) {
      if (method == null) dart.nullFailed(I[146], 135, 29, "method");
      if (!(typeof method == 'string') && !(typeof method == 'number')) {
        dart.throw(new core.ArgumentError.new("method is not a String or num"));
      }
      if (args != null) args = core.List.from(args[$map](T$.dynamic(), C[260] || CT.C260));
      let fn = this[_jsObject$][method];
      if (typeof fn !== "function") {
        let invocation = core.Invocation.method(new _internal.Symbol.new(dart.str(method)), args, new (G.LinkedMapOfSymbol$ObjectN()).new());
        dart.throw(new core.NoSuchMethodError._withInvocation(this[_jsObject$], invocation));
      }
      return js._convertToDart(fn.apply(this[_jsObject$], args));
    }
  };
  (js.JsObject._fromJs = function(_jsObject) {
    if (_jsObject == null) dart.nullFailed(I[146], 27, 25, "_jsObject");
    this[_jsObject$] = _jsObject;
    if (!(this[_jsObject$] != null)) dart.assertFailed(null, I[146], 28, 12, "_jsObject != null");
  }).prototype = js.JsObject.prototype;
  dart.addRtiResources(js.JsObject, ["js|JsObject"]);
  dart.setMethodSignature(js.JsObject, () => dart.global.Object.setPrototypeOf({
    _get: T$1.ObjectTodynamic(),
    _set: T$3.ObjectAndObjectNTovoid(),
    hasProperty: T$.ObjectTobool(),
    deleteProperty: T$.ObjectTovoid(),
    instanceof: T$3.JsFunctionTobool(),
    callMethod: T$3.ObjectAndListNTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(js.JsObject))));
  dart.setStaticMethodSignature(js.JsObject, () => ['_convertDataTree', 'new', 'fromBrowserObject', 'jsify']);
  dart.setLibraryUri(js.JsObject, I[147]);
  dart.setFieldSignature(js.JsObject, () => dart.global.Object.setPrototypeOf({[_jsObject$]: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(js.JsObject))));
  dart.defineExtensionMethods(js.JsObject, ['_equals', 'toString']);
  dart.defineExtensionAccessors(js.JsObject, ['hashCode']);
  js.JsFunction = class JsFunction extends js.JsObject {
    static ['_#_fromJs#tearOff'](jsObject) {
      if (jsObject == null) dart.nullFailed(I[146], 168, 29, "jsObject");
      return new js.JsFunction._fromJs(jsObject);
    }
    static withThis(f) {
      if (f == null) dart.nullFailed(I[146], 152, 40, "f");
      return new js.JsFunction._fromJs(function() {
        let args = [js._convertToDart(this)];
        for (let arg of arguments) {
          args.push(js._convertToDart(arg));
        }
        return js._convertToJS(f(...args));
      });
    }
    static ['_#withThis#tearOff'](f) {
      if (f == null) dart.nullFailed(I[146], 152, 40, "f");
      return js.JsFunction.withThis(f);
    }
    apply(args, opts) {
      if (args == null) dart.nullFailed(I[146], 171, 22, "args");
      let thisArg = opts && 'thisArg' in opts ? opts.thisArg : null;
      return js._convertToDart(this[_jsObject$].apply(js._convertToJS(thisArg), args == null ? null : core.List.from(args[$map](T$.dynamic(), js._convertToJS))));
    }
  };
  (js.JsFunction._fromJs = function(jsObject) {
    if (jsObject == null) dart.nullFailed(I[146], 168, 29, "jsObject");
    dart.global.Object.getPrototypeOf(js.JsFunction)._fromJs.call(this, jsObject);
    ;
  }).prototype = js.JsFunction.prototype;
  dart.addRtiResources(js.JsFunction, ["js|JsFunction"]);
  dart.setMethodSignature(js.JsFunction, () => dart.global.Object.setPrototypeOf({apply: T$3.List__Todynamic()}, dart.getMethods(dart.global.Object.getPrototypeOf(js.JsFunction))));
  dart.setStaticMethodSignature(js.JsFunction, () => ['withThis']);
  dart.setLibraryUri(js.JsFunction, I[147]);
  var _checkIndex = dart.privateName(js, "_checkIndex");
  var _checkInsertIndex = dart.privateName(js, "_checkInsertIndex");
  js.JsArray$ = dart.generic(E => {
    var __t$JsArrayOfE = () => (__t$JsArrayOfE = dart.constFn(E[_eval]("js|JsArray<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$ObjectToE = () => (__t$ObjectToE = dart.constFn(E[_eval]("0(core|Object)")))();
    var __t$ListBaseOfE = () => (__t$ListBaseOfE = dart.constFn(collection.ListBase$(E)))();
    const JsObject_ListBase$36 = class JsObject_ListBase extends js.JsObject {
      _set(property, value$) {
        let value = value$;
        if (property == null) dart.nullFailed(I[148], 179, 7, "property");
        super._set(property, value);
        return value$;
      }
    };
    (JsObject_ListBase$36._fromJs = function(_jsObject) {
      __t$ListBaseOfE().new.call(this);
      dart.global.Object.getPrototypeOf(JsObject_ListBase$36)._fromJs.call(this, _jsObject);
    }).prototype = JsObject_ListBase$36.prototype;
    dart.applyMixin(JsObject_ListBase$36, __t$ListBaseOfE());
    class JsArray extends JsObject_ListBase$36 {
      static ['_#_fromJs#tearOff'](E, jsObject) {
        if (jsObject == null) dart.nullFailed(I[146], 190, 26, "jsObject");
        return new (js.JsArray$(E))._fromJs(jsObject);
      }
      [_checkIndex](index) {
        if (index == null) dart.nullFailed(I[146], 192, 19, "index");
        if (dart.notNull(index) < 0 || dart.notNull(index) >= dart.notNull(this.length)) {
          dart.throw(new core.RangeError.range(index, 0, this.length));
        }
      }
      [_checkInsertIndex](index) {
        if (index == null) dart.nullFailed(I[146], 198, 25, "index");
        if (dart.notNull(index) < 0 || dart.notNull(index) >= dart.notNull(this.length) + 1) {
          dart.throw(new core.RangeError.range(index, 0, this.length));
        }
      }
      static _checkRange(start, end, length) {
        if (start == null) dart.nullFailed(I[146], 204, 26, "start");
        if (end == null) dart.nullFailed(I[146], 204, 37, "end");
        if (length == null) dart.nullFailed(I[146], 204, 46, "length");
        if (dart.notNull(start) < 0 || dart.notNull(start) > dart.notNull(length)) {
          dart.throw(new core.RangeError.range(start, 0, length));
        }
        if (dart.notNull(end) < dart.notNull(start) || dart.notNull(end) > dart.notNull(length)) {
          dart.throw(new core.RangeError.range(end, start, length));
        }
      }
      static new() {
        return new (js.JsArray$(E))._fromJs([]);
      }
      static ['_#new#tearOff'](E) {
        return js.JsArray$(E).new();
      }
      static from(other) {
        let t$36200;
        if (other == null) dart.nullFailed(I[146], 187, 36, "other");
        return new (js.JsArray$(E))._fromJs((t$36200 = [], (() => {
          t$36200[$addAll](other[$map](T$.dynamic(), C[260] || CT.C260));
          return t$36200;
        })()));
      }
      static ['_#from#tearOff'](E, other) {
        if (other == null) dart.nullFailed(I[146], 187, 36, "other");
        return js.JsArray$(E).from(other);
      }
      _get(index) {
        if (index == null) dart.nullFailed(I[146], 214, 24, "index");
        if (T$.int()[_is](index)) {
          this[_checkIndex](index);
        }
        return E[_as](super._get(index));
      }
      _set(index, value$) {
        let value = value$;
        if (index == null) dart.nullFailed(I[146], 222, 28, "index");
        if (T$.int()[_is](index)) {
          this[_checkIndex](index);
        }
        super._set(index, value);
        return value$;
      }
      get length() {
        let len = this[_jsObject$].length;
        if (typeof len === "number" && len >>> 0 === len) {
          return len;
        }
        dart.throw(new core.StateError.new("Bad JsArray length"));
      }
      set length(length) {
        if (length == null) dart.nullFailed(I[146], 242, 23, "length");
        super._set("length", length);
      }
      add(value) {
        E[_as](value);
        this.callMethod("push", [value]);
      }
      addAll(iterable) {
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[146], 252, 27, "iterable");
        let list = iterable instanceof Array ? iterable : core.List.from(iterable);
        this.callMethod("push", list);
      }
      insert(index, element) {
        if (index == null) dart.nullFailed(I[146], 260, 19, "index");
        E[_as](element);
        this[_checkInsertIndex](index);
        this.callMethod("splice", [index, 0, element]);
      }
      removeAt(index) {
        if (index == null) dart.nullFailed(I[146], 266, 18, "index");
        this[_checkIndex](index);
        return E[_as](dart.dsend(this.callMethod("splice", [index, 1]), '_get', [0]));
      }
      removeLast() {
        if (this.length === 0) dart.throw(new core.RangeError.new(-1));
        return E[_as](this.callMethod("pop"));
      }
      removeRange(start, end) {
        if (start == null) dart.nullFailed(I[146], 278, 24, "start");
        if (end == null) dart.nullFailed(I[146], 278, 35, "end");
        js.JsArray._checkRange(start, end, this.length);
        this.callMethod("splice", [start, dart.notNull(end) - dart.notNull(start)]);
      }
      setRange(start, end, iterable, skipCount = 0) {
        let t$36200;
        if (start == null) dart.nullFailed(I[146], 284, 21, "start");
        if (end == null) dart.nullFailed(I[146], 284, 32, "end");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[146], 284, 49, "iterable");
        if (skipCount == null) dart.nullFailed(I[146], 284, 64, "skipCount");
        js.JsArray._checkRange(start, end, this.length);
        let length = dart.notNull(end) - dart.notNull(start);
        if (length === 0) return;
        if (dart.notNull(skipCount) < 0) dart.throw(new core.ArgumentError.new(skipCount));
        let args = (t$36200 = G.JSArrayOfObjectN().of([start, length]), (() => {
          t$36200[$addAll](iterable[$skip](skipCount)[$take](length));
          return t$36200;
        })());
        this.callMethod("splice", args);
      }
      sort(compare = null) {
        this.callMethod("sort", compare == null ? [] : [compare]);
      }
    }
    (JsArray._fromJs = function(jsObject) {
      if (jsObject == null) dart.nullFailed(I[146], 190, 26, "jsObject");
      this.$ti = this.$ti || __t$JsArrayOfE();
      dart.global.Object.getPrototypeOf(JsArray)._fromJs.call(this, jsObject);
      ;
    }).prototype = JsArray.prototype;
    dart.addRtiResources(JsArray, ["js|JsArray"]);
    dart.setMethodSignature(JsArray, () => dart.global.Object.setPrototypeOf({
      [_checkIndex]: T$2.intTodynamic(),
      [_checkInsertIndex]: T$2.intTodynamic(),
      _get: __t$ObjectToE(),
      [$_get]: __t$ObjectToE(),
      _set: T$3.ObjectAnddynamicTovoid(),
      [$_set]: T$3.ObjectAnddynamicTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(JsArray))));
    dart.setStaticMethodSignature(JsArray, () => ['_checkRange', 'new', 'from']);
    dart.setGetterSignature(JsArray, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(JsArray))));
    dart.setSetterSignature(JsArray, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(JsArray))));
    dart.setLibraryUri(JsArray, I[147]);
    dart.defineExtensionMethods(JsArray, [
      '_get',
      '_set',
      'add',
      'addAll',
      'insert',
      'removeAt',
      'removeLast',
      'removeRange',
      'setRange',
      'sort'
    ]);
    dart.defineExtensionAccessors(JsArray, ['length']);
    return JsArray;
  });
  js.JsArray = js.JsArray$();
  js._isBrowserType = function _isBrowserType(o) {
    if (o == null) dart.nullFailed(I[146], 305, 28, "o");
    return o instanceof Object && (dart.global.Blob && o instanceof dart.global.Blob || dart.global.Event && o instanceof dart.global.Event || dart.global.KeyRange && o instanceof dart.global.KeyRange || dart.global.IDBKeyRange && o instanceof dart.global.IDBKeyRange || dart.global.ImageData && o instanceof dart.global.ImageData || dart.global.Node && o instanceof dart.global.Node || dart.global.DataView && o instanceof dart.global.DataView || dart.global.Int8Array && o instanceof Object.getPrototypeOf(dart.global.Int8Array) || dart.global.Window && o instanceof dart.global.Window);
  };
  js._convertToJS = function _convertToJS(o) {
    if (o == null || typeof o == 'string' || typeof o == 'number' || typeof o == 'boolean' || dart.test(js._isBrowserType(o))) {
      return o;
    } else if (T$2.DateTime()[_is](o)) {
      return _js_helper.Primitives.lazyAsJsDate(o);
    } else if (T$3.JsObject()[_is](o)) {
      return o[_jsObject$];
    } else if (T$.Function()[_is](o)) {
      return js._putIfAbsent(js._jsProxies, o, C[261] || CT.C261);
    } else {
      return js._putIfAbsent(js._jsProxies, o, dart.fn(o => {
        if (o == null) dart.nullFailed(I[146], 348, 41, "o");
        return new js._DartObject.new(o);
      }, T$3.ObjectTo_DartObject()));
    }
  };
  js._wrapDartFunction = function _wrapDartFunction(f) {
    if (f == null) dart.nullFailed(I[146], 352, 33, "f");
    let wrapper = function() {
      let args = Array.prototype.map.call(arguments, js._convertToDart);
      return js._convertToJS(f(...args));
    };
    js._dartProxies.set(wrapper, f);
    return wrapper;
  };
  js._convertToDart = function _convertToDart(o) {
    if (o == null || typeof o == 'string' || typeof o == 'number' || typeof o == 'boolean' || dart.test(js._isBrowserType(o))) {
      return o;
    } else if (o instanceof Date) {
      let ms = o.getTime();
      return new core.DateTime.fromMillisecondsSinceEpoch(ms);
    } else if (T$3._DartObject()[_is](o) && dart.getReifiedType(o) !== T$.LegacyJavaScriptObject()) {
      return o[_dartObj$];
    } else {
      return js._wrapToDart(o);
    }
  };
  js._wrapToDart = function _wrapToDart(o) {
    if (o == null) dart.nullFailed(I[146], 383, 29, "o");
    return js._putIfAbsent(js._dartProxies, o, C[262] || CT.C262);
  };
  js._wrapToDartHelper = function _wrapToDartHelper(o) {
    if (o == null) dart.nullFailed(I[146], 386, 35, "o");
    if (typeof o == "function") {
      return new js.JsFunction._fromJs(o);
    }
    if (o instanceof Array) {
      return new js.JsArray._fromJs(o);
    }
    return new js.JsObject._fromJs(o);
  };
  js._putIfAbsent = function _putIfAbsent(weakMap, o, getValue) {
    if (weakMap == null) dart.nullFailed(I[146], 400, 26, "weakMap");
    if (o == null) dart.nullFailed(I[146], 400, 42, "o");
    if (getValue == null) dart.nullFailed(I[146], 400, 47, "getValue");
    let value = weakMap.get(o);
    if (value == null) {
      value = getValue(o);
      weakMap.set(o, value);
    }
    return value;
  };
  dart.copyProperties(js, {
    get context() {
      return js._context;
    }
  });
  dart.defineLazy(js, {
    /*js._context*/get _context() {
      return js._wrapToDart(dart.global);
    },
    /*js._dartProxies*/get _dartProxies() {
      return new WeakMap();
    },
    /*js._jsProxies*/get _jsProxies() {
      return new WeakMap();
    }
  }, false);
  var name$13 = dart.privateName(js_interop, "JS.name");
  js_interop.JS = class JS extends core.Object {
    get name() {
      return this[name$13];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name = null) {
      return new js_interop.JS.new(name);
    }
  };
  (js_interop.JS.new = function(name = null) {
    this[name$13] = name;
    ;
  }).prototype = js_interop.JS.prototype;
  dart.addRtiResources(js_interop.JS, ["js_interop|JS"]);
  dart.setLibraryUri(js_interop.JS, I[149]);
  dart.setFieldSignature(js_interop.JS, () => dart.global.Object.setPrototypeOf({name: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(js_interop.JS))));
  js_interop['JSAny|constructor#_'] = function JSAny$124constructor$35_(_jsAny) {
    if (_jsAny == null) dart.nullFailed(I[150], 85, 37, "_jsAny");
    let $this = _jsAny;
    return $this;
  };
  js_interop['JSAny|constructor#_#_#tearOff'] = function JSAny$124constructor$35_$35_$35tearOff(_jsAny) {
    if (_jsAny == null) dart.nullFailed(I[150], 85, 37, "_jsAny");
    return js_interop['JSAny|constructor#_'](_jsAny);
  };
  js_interop['JSObject|constructor#_'] = function JSObject$124constructor$35_(_jsObject) {
    if (_jsObject == null) dart.nullFailed(I[150], 96, 43, "_jsObject");
    let $this = _jsObject;
    return $this;
  };
  js_interop['JSObject|constructor#_#_#tearOff'] = function JSObject$124constructor$35_$35_$35tearOff(_jsObject) {
    if (_jsObject == null) dart.nullFailed(I[150], 96, 43, "_jsObject");
    return js_interop['JSObject|constructor#_'](_jsObject);
  };
  js_interop['JSObject|constructor#fromInteropObject'] = function JSObject$124constructor$35fromInteropObject(interopObject) {
    if (interopObject == null) dart.nullFailed(I[150], 104, 37, "interopObject");
    let $this = T$3.JSObject()[_as](interopObject);
    return $this;
  };
  js_interop['JSObject|constructor#_#fromInteropObject#tearOff'] = function JSObject$124constructor$35_$35fromInteropObject$35tearOff(interopObject) {
    if (interopObject == null) dart.nullFailed(I[150], 104, 37, "interopObject");
    return js_interop['JSObject|constructor#fromInteropObject'](interopObject);
  };
  js_interop['JSObject|constructor#'] = function JSObject$124constructor$35() {
    let $this = js_interop._createObjectLiteral();
    return $this;
  };
  js_interop['JSObject|constructor#_#new#tearOff'] = function JSObject$124constructor$35_$35new$35tearOff() {
    return js_interop['JSObject|constructor#']();
  };
  js_interop._createObjectLiteral = function _createObjectLiteral() {
    return _js_helper.createObjectLiteral(T$3.JSObject());
  };
  js_interop['JSFunction|constructor#_'] = function JSFunction$124constructor$35_(_jsFunction) {
    if (_jsFunction == null) dart.nullFailed(I[150], 121, 47, "_jsFunction");
    let $this = _jsFunction;
    return $this;
  };
  js_interop['JSFunction|constructor#_#_#tearOff'] = function JSFunction$124constructor$35_$35_$35tearOff(_jsFunction) {
    if (_jsFunction == null) dart.nullFailed(I[150], 121, 47, "_jsFunction");
    return js_interop['JSFunction|constructor#_'](_jsFunction);
  };
  js_interop['JSExportedDartFunction|constructor#_'] = function JSExportedDartFunction$124constructor$35_(_jsExportedDartFunction) {
    if (_jsExportedDartFunction == null) dart.nullFailed(I[150], 130, 39, "_jsExportedDartFunction");
    let $this = _jsExportedDartFunction;
    return $this;
  };
  js_interop['JSExportedDartFunction|constructor#_#_#tearOff'] = function JSExportedDartFunction$124constructor$35_$35_$35tearOff(_jsExportedDartFunction) {
    if (_jsExportedDartFunction == null) dart.nullFailed(I[150], 130, 39, "_jsExportedDartFunction");
    return js_interop['JSExportedDartFunction|constructor#_'](_jsExportedDartFunction);
  };
  js_interop['JSArray|constructor#_'] = function JSArray$124constructor$35_(T, _jsArray) {
    if (_jsArray == null) dart.nullFailed(I[150], 151, 59, "_jsArray");
    let $this = _jsArray;
    return $this;
  };
  js_interop['JSArray|constructor#_#_#tearOff'] = function JSArray$124constructor$35_$35_$35tearOff(T, _jsArray) {
    if (_jsArray == null) dart.nullFailed(I[150], 151, 59, "_jsArray");
    return js_interop['JSArray|constructor#_'](T, _jsArray);
  };
  js_interop['JSPromise|constructor#_'] = function JSPromise$124constructor$35_(T, _jsPromise) {
    if (_jsPromise == null) dart.nullFailed(I[150], 171, 63, "_jsPromise");
    let $this = _jsPromise;
    return $this;
  };
  js_interop['JSPromise|constructor#_#_#tearOff'] = function JSPromise$124constructor$35_$35_$35tearOff(T, _jsPromise) {
    if (_jsPromise == null) dart.nullFailed(I[150], 171, 63, "_jsPromise");
    return js_interop['JSPromise|constructor#_'](T, _jsPromise);
  };
  js_interop['JSBoxedDartObject|constructor#_'] = function JSBoxedDartObject$124constructor$35_(_jsBoxedDartObject) {
    if (_jsBoxedDartObject == null) dart.nullFailed(I[150], 189, 61, "_jsBoxedDartObject");
    let $this = _jsBoxedDartObject;
    return $this;
  };
  js_interop['JSBoxedDartObject|constructor#_#_#tearOff'] = function JSBoxedDartObject$124constructor$35_$35_$35tearOff(_jsBoxedDartObject) {
    if (_jsBoxedDartObject == null) dart.nullFailed(I[150], 189, 61, "_jsBoxedDartObject");
    return js_interop['JSBoxedDartObject|constructor#_'](_jsBoxedDartObject);
  };
  js_interop['JSArrayBuffer|constructor#_'] = function JSArrayBuffer$124constructor$35_(_jsArrayBuffer) {
    if (_jsArrayBuffer == null) dart.nullFailed(I[150], 194, 53, "_jsArrayBuffer");
    let $this = _jsArrayBuffer;
    return $this;
  };
  js_interop['JSArrayBuffer|constructor#_#_#tearOff'] = function JSArrayBuffer$124constructor$35_$35_$35tearOff(_jsArrayBuffer) {
    if (_jsArrayBuffer == null) dart.nullFailed(I[150], 194, 53, "_jsArrayBuffer");
    return js_interop['JSArrayBuffer|constructor#_'](_jsArrayBuffer);
  };
  js_interop['JSDataView|constructor#_'] = function JSDataView$124constructor$35_(_jsDataView) {
    if (_jsDataView == null) dart.nullFailed(I[150], 199, 47, "_jsDataView");
    let $this = _jsDataView;
    return $this;
  };
  js_interop['JSDataView|constructor#_#_#tearOff'] = function JSDataView$124constructor$35_$35_$35tearOff(_jsDataView) {
    if (_jsDataView == null) dart.nullFailed(I[150], 199, 47, "_jsDataView");
    return js_interop['JSDataView|constructor#_'](_jsDataView);
  };
  js_interop['JSTypedArray|constructor#_'] = function JSTypedArray$124constructor$35_(_jsTypedArray) {
    if (_jsTypedArray == null) dart.nullFailed(I[150], 203, 51, "_jsTypedArray");
    let $this = _jsTypedArray;
    return $this;
  };
  js_interop['JSTypedArray|constructor#_#_#tearOff'] = function JSTypedArray$124constructor$35_$35_$35tearOff(_jsTypedArray) {
    if (_jsTypedArray == null) dart.nullFailed(I[150], 203, 51, "_jsTypedArray");
    return js_interop['JSTypedArray|constructor#_'](_jsTypedArray);
  };
  js_interop['JSInt8Array|constructor#_'] = function JSInt8Array$124constructor$35_(_jsInt8Array) {
    if (_jsInt8Array == null) dart.nullFailed(I[150], 208, 49, "_jsInt8Array");
    let $this = _jsInt8Array;
    return $this;
  };
  js_interop['JSInt8Array|constructor#_#_#tearOff'] = function JSInt8Array$124constructor$35_$35_$35tearOff(_jsInt8Array) {
    if (_jsInt8Array == null) dart.nullFailed(I[150], 208, 49, "_jsInt8Array");
    return js_interop['JSInt8Array|constructor#_'](_jsInt8Array);
  };
  js_interop['JSUint8Array|constructor#_'] = function JSUint8Array$124constructor$35_(_jsUint8Array) {
    if (_jsUint8Array == null) dart.nullFailed(I[150], 213, 51, "_jsUint8Array");
    let $this = _jsUint8Array;
    return $this;
  };
  js_interop['JSUint8Array|constructor#_#_#tearOff'] = function JSUint8Array$124constructor$35_$35_$35tearOff(_jsUint8Array) {
    if (_jsUint8Array == null) dart.nullFailed(I[150], 213, 51, "_jsUint8Array");
    return js_interop['JSUint8Array|constructor#_'](_jsUint8Array);
  };
  js_interop['JSUint8ClampedArray|constructor#_'] = function JSUint8ClampedArray$124constructor$35_(_jsUint8ClampedArray) {
    if (_jsUint8ClampedArray == null) dart.nullFailed(I[150], 219, 32, "_jsUint8ClampedArray");
    let $this = _jsUint8ClampedArray;
    return $this;
  };
  js_interop['JSUint8ClampedArray|constructor#_#_#tearOff'] = function JSUint8ClampedArray$124constructor$35_$35_$35tearOff(_jsUint8ClampedArray) {
    if (_jsUint8ClampedArray == null) dart.nullFailed(I[150], 219, 32, "_jsUint8ClampedArray");
    return js_interop['JSUint8ClampedArray|constructor#_'](_jsUint8ClampedArray);
  };
  js_interop['JSInt16Array|constructor#_'] = function JSInt16Array$124constructor$35_(_jsInt16Array) {
    if (_jsInt16Array == null) dart.nullFailed(I[150], 223, 51, "_jsInt16Array");
    let $this = _jsInt16Array;
    return $this;
  };
  js_interop['JSInt16Array|constructor#_#_#tearOff'] = function JSInt16Array$124constructor$35_$35_$35tearOff(_jsInt16Array) {
    if (_jsInt16Array == null) dart.nullFailed(I[150], 223, 51, "_jsInt16Array");
    return js_interop['JSInt16Array|constructor#_'](_jsInt16Array);
  };
  js_interop['JSUint16Array|constructor#_'] = function JSUint16Array$124constructor$35_(_jsUint16Array) {
    if (_jsUint16Array == null) dart.nullFailed(I[150], 228, 53, "_jsUint16Array");
    let $this = _jsUint16Array;
    return $this;
  };
  js_interop['JSUint16Array|constructor#_#_#tearOff'] = function JSUint16Array$124constructor$35_$35_$35tearOff(_jsUint16Array) {
    if (_jsUint16Array == null) dart.nullFailed(I[150], 228, 53, "_jsUint16Array");
    return js_interop['JSUint16Array|constructor#_'](_jsUint16Array);
  };
  js_interop['JSInt32Array|constructor#_'] = function JSInt32Array$124constructor$35_(_jsInt32Array) {
    if (_jsInt32Array == null) dart.nullFailed(I[150], 233, 51, "_jsInt32Array");
    let $this = _jsInt32Array;
    return $this;
  };
  js_interop['JSInt32Array|constructor#_#_#tearOff'] = function JSInt32Array$124constructor$35_$35_$35tearOff(_jsInt32Array) {
    if (_jsInt32Array == null) dart.nullFailed(I[150], 233, 51, "_jsInt32Array");
    return js_interop['JSInt32Array|constructor#_'](_jsInt32Array);
  };
  js_interop['JSUint32Array|constructor#_'] = function JSUint32Array$124constructor$35_(_jsUint32Array) {
    if (_jsUint32Array == null) dart.nullFailed(I[150], 238, 53, "_jsUint32Array");
    let $this = _jsUint32Array;
    return $this;
  };
  js_interop['JSUint32Array|constructor#_#_#tearOff'] = function JSUint32Array$124constructor$35_$35_$35tearOff(_jsUint32Array) {
    if (_jsUint32Array == null) dart.nullFailed(I[150], 238, 53, "_jsUint32Array");
    return js_interop['JSUint32Array|constructor#_'](_jsUint32Array);
  };
  js_interop['JSFloat32Array|constructor#_'] = function JSFloat32Array$124constructor$35_(_jsFloat32Array) {
    if (_jsFloat32Array == null) dart.nullFailed(I[150], 243, 55, "_jsFloat32Array");
    let $this = _jsFloat32Array;
    return $this;
  };
  js_interop['JSFloat32Array|constructor#_#_#tearOff'] = function JSFloat32Array$124constructor$35_$35_$35tearOff(_jsFloat32Array) {
    if (_jsFloat32Array == null) dart.nullFailed(I[150], 243, 55, "_jsFloat32Array");
    return js_interop['JSFloat32Array|constructor#_'](_jsFloat32Array);
  };
  js_interop['JSFloat64Array|constructor#_'] = function JSFloat64Array$124constructor$35_(_jsFloat64Array) {
    if (_jsFloat64Array == null) dart.nullFailed(I[150], 248, 55, "_jsFloat64Array");
    let $this = _jsFloat64Array;
    return $this;
  };
  js_interop['JSFloat64Array|constructor#_#_#tearOff'] = function JSFloat64Array$124constructor$35_$35_$35tearOff(_jsFloat64Array) {
    if (_jsFloat64Array == null) dart.nullFailed(I[150], 248, 55, "_jsFloat64Array");
    return js_interop['JSFloat64Array|constructor#_'](_jsFloat64Array);
  };
  js_interop['JSNumber|constructor#_'] = function JSNumber$124constructor$35_(_jsNumber) {
    if (_jsNumber == null) dart.nullFailed(I[150], 256, 43, "_jsNumber");
    let $this = _jsNumber;
    return $this;
  };
  js_interop['JSNumber|constructor#_#_#tearOff'] = function JSNumber$124constructor$35_$35_$35tearOff(_jsNumber) {
    if (_jsNumber == null) dart.nullFailed(I[150], 256, 43, "_jsNumber");
    return js_interop['JSNumber|constructor#_'](_jsNumber);
  };
  js_interop['JSBoolean|constructor#_'] = function JSBoolean$124constructor$35_(_jsBoolean) {
    if (_jsBoolean == null) dart.nullFailed(I[150], 259, 45, "_jsBoolean");
    let $this = _jsBoolean;
    return $this;
  };
  js_interop['JSBoolean|constructor#_#_#tearOff'] = function JSBoolean$124constructor$35_$35_$35tearOff(_jsBoolean) {
    if (_jsBoolean == null) dart.nullFailed(I[150], 259, 45, "_jsBoolean");
    return js_interop['JSBoolean|constructor#_'](_jsBoolean);
  };
  js_interop['JSString|constructor#_'] = function JSString$124constructor$35_(_jsString) {
    if (_jsString == null) dart.nullFailed(I[150], 262, 43, "_jsString");
    let $this = _jsString;
    return $this;
  };
  js_interop['JSString|constructor#_#_#tearOff'] = function JSString$124constructor$35_$35_$35tearOff(_jsString) {
    if (_jsString == null) dart.nullFailed(I[150], 262, 43, "_jsString");
    return js_interop['JSString|constructor#_'](_jsString);
  };
  js_interop['JSSymbol|constructor#_'] = function JSSymbol$124constructor$35_(_jsSymbol) {
    if (_jsSymbol == null) dart.nullFailed(I[150], 265, 43, "_jsSymbol");
    let $this = _jsSymbol;
    return $this;
  };
  js_interop['JSSymbol|constructor#_#_#tearOff'] = function JSSymbol$124constructor$35_$35_$35tearOff(_jsSymbol) {
    if (_jsSymbol == null) dart.nullFailed(I[150], 265, 43, "_jsSymbol");
    return js_interop['JSSymbol|constructor#_'](_jsSymbol);
  };
  js_interop['JSBigInt|constructor#_'] = function JSBigInt$124constructor$35_(_jsBigInt) {
    if (_jsBigInt == null) dart.nullFailed(I[150], 268, 43, "_jsBigInt");
    let $this = _jsBigInt;
    return $this;
  };
  js_interop['JSBigInt|constructor#_#_#tearOff'] = function JSBigInt$124constructor$35_$35_$35tearOff(_jsBigInt) {
    if (_jsBigInt == null) dart.nullFailed(I[150], 268, 43, "_jsBigInt");
    return js_interop['JSBigInt|constructor#_'](_jsBigInt);
  };
  js_interop['ExternalDartReference|constructor#_'] = function ExternalDartReference$124constructor$35_(T, _externalDartReference) {
    let $this = _externalDartReference;
    return $this;
  };
  js_interop['ExternalDartReference|constructor#_#_#tearOff'] = function ExternalDartReference$124constructor$35_$35_$35tearOff(T, _externalDartReference) {
    return js_interop['ExternalDartReference|constructor#_'](T, _externalDartReference);
  };
  js_interop['NullableUndefineableJSAnyExtension|get#isUndefined'] = function NullableUndefineableJSAnyExtension$124get$35isUndefined($this) {
    return js_interop['JSAnyUtilityExtension|typeofEquals']($this, "undefined");
  };
  js_interop['NullableUndefineableJSAnyExtension|get#isNull'] = function NullableUndefineableJSAnyExtension$124get$35isNull($this) {
    return $this === null;
  };
  js_interop['NullableUndefineableJSAnyExtension|get#isUndefinedOrNull'] = function NullableUndefineableJSAnyExtension$124get$35isUndefinedOrNull($this) {
    return $this == null;
  };
  js_interop['NullableUndefineableJSAnyExtension|get#isDefinedAndNotNull'] = function NullableUndefineableJSAnyExtension$124get$35isDefinedAndNotNull($this) {
    return !dart.test(js_interop['NullableUndefineableJSAnyExtension|get#isUndefinedOrNull']($this));
  };
  js_interop['JSAnyUtilityExtension|typeofEquals'] = function JSAnyUtilityExtension$124typeofEquals($this, typeString) {
    if (typeString == null) dart.nullFailed(I[151], 38, 28, "typeString");
    return typeof $this === typeString;
  };
  js_interop['JSAnyUtilityExtension|get#typeofEquals'] = function JSAnyUtilityExtension$124get$35typeofEquals($this) {
    return dart.fn(typeString => {
      if (typeString == null) dart.nullFailed(I[150], 355, 37, "typeString");
      return js_interop['JSAnyUtilityExtension|typeofEquals']($this, typeString);
    }, T$.StringTobool());
  };
  js_interop['JSAnyUtilityExtension|instanceof'] = function JSAnyUtilityExtension$124instanceof($this, constructor) {
    if (constructor == null) dart.nullFailed(I[151], 43, 30, "constructor");
    return $this instanceof constructor;
  };
  js_interop['JSAnyUtilityExtension|get#instanceof'] = function JSAnyUtilityExtension$124get$35instanceof($this) {
    return dart.fn(constructor => {
      if (constructor == null) dart.nullFailed(I[150], 358, 39, "constructor");
      return js_interop['JSAnyUtilityExtension|instanceof']($this, constructor);
    }, T$3.JavaScriptFunctionTobool());
  };
  js_interop['JSAnyUtilityExtension|instanceOfString'] = function JSAnyUtilityExtension$124instanceOfString($this, constructorName) {
    let t$36236;
    if (constructorName == null) dart.nullFailed(I[150], 371, 32, "constructorName");
    if (constructorName[$isEmpty]) return false;
    let parts = constructorName[$split](".");
    let constructor = js_interop.globalContext;
    for (let part of parts) {
      constructor = T$3.JSObjectN()[_as]((t$36236 = constructor, t$36236 == null ? null : js_interop_unsafe['JSObjectUnsafeUtilExtension|[]'](t$36236, part)));
      if (constructor == null) return false;
    }
    return js_interop['JSAnyUtilityExtension|instanceof']($this, T$.JavaScriptFunction()[_as](constructor));
  };
  js_interop['JSAnyUtilityExtension|get#instanceOfString'] = function JSAnyUtilityExtension$124get$35instanceOfString($this) {
    return dart.fn(constructorName => {
      if (constructorName == null) dart.nullFailed(I[150], 371, 32, "constructorName");
      return js_interop['JSAnyUtilityExtension|instanceOfString']($this, constructorName);
    }, T$.StringTobool());
  };
  js_interop['JSAnyUtilityExtension|isA'] = function JSAnyUtilityExtension$124isA(T, $this) {
    return dart.throw(new core.UnimplementedError.new("This should never be called. Calls to 'isA' should have been transformed by the interop transformer."));
  };
  js_interop['JSAnyUtilityExtension|get#isA'] = function JSAnyUtilityExtension$124get$35isA($this) {
    return dart.gFn(T => js_interop['JSAnyUtilityExtension|isA'](T, $this), T$3.VoidTobool$1(), dart.constList([T$.ObjectN()], T$.dynamic()));
  };
  js_interop['JSAnyUtilityExtension|dartify'] = function JSAnyUtilityExtension$124dartify($this) {
    return js_util.dartify($this);
  };
  js_interop['JSAnyUtilityExtension|get#dartify'] = function JSAnyUtilityExtension$124get$35dartify($this) {
    return dart.fn(() => js_interop['JSAnyUtilityExtension|dartify']($this), T$2.VoidToObjectN());
  };
  js_interop['NullableObjectUtilExtension|jsify'] = function NullableObjectUtilExtension$124jsify($this) {
    return js_util.jsify($this);
  };
  js_interop['NullableObjectUtilExtension|get#jsify'] = function NullableObjectUtilExtension$124get$35jsify($this) {
    return dart.fn(() => js_interop['NullableObjectUtilExtension|jsify']($this), T$2.VoidToObjectN());
  };
  js_interop['JSExportedDartFunctionToFunction|get#toDart'] = function JSExportedDartFunctionToFunction$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 69, 16, "#this");
    return dart.throw(new core.UnimplementedError.new("'toDart' should never directly be called. Calls to 'toDart' should have been transformed by the interop transformer."));
  };
  js_interop['FunctionToJSExportedDartFunction|get#toJS'] = function FunctionToJSExportedDartFunction$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 77, 30, "#this");
    return dart.throw(new core.UnimplementedError.new("'toJS' should never directly be called. Calls to 'toJS' should have been transformed by the interop transformer."));
  };
  js_interop['JSBoxedDartObjectToObject|get#toDart'] = function JSBoxedDartObjectToObject$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 96, 14, "#this");
    let val = js_util.getProperty(T$.ObjectN(), $this, js_interop._jsBoxedDartObjectProperty);
    if (val == null) {
      dart.throw("Expected a wrapped Dart object, but got a JS object or a wrapped Dart object from a separate runtime instead.");
    }
    return val;
  };
  js_interop['ObjectToJSBoxedDartObject|get#toJSBox'] = function ObjectToJSBoxedDartObject$124get$35toJSBox($this) {
    if ($this == null) dart.nullFailed(I[151], 110, 25, "#this");
    if (T$.JavaScriptObject()[_is]($this)) {
      dart.throw("Attempting to box non-Dart object.");
    }
    let box = js_util.newObject(T$.dynamic());
    box[js_interop._jsBoxedDartObjectProperty] = $this;
    return js_interop['JSBoxedDartObject|constructor#_'](T$3.JSObject()[_as](box));
  };
  js_interop['ExternalDartReferenceToObject|get#toDartObject'] = function ExternalDartReferenceToObject$124get$35toDartObject(T, $this) {
    return $this;
  };
  js_interop['ObjectToExternalDartReference|get#toExternalReference'] = function ObjectToExternalDartReference$124get$35toExternalReference(T, $this) {
    return js_interop['ExternalDartReference|constructor#_'](T, $this);
  };
  js_interop['JSPromiseToFuture|get#toDart'] = function JSPromiseToFuture$124get$35toDart(T, $this) {
    if ($this == null) dart.nullFailed(I[151], 145, 17, "#this");
    return js_util.promiseToFuture(T, $this);
  };
  js_interop['FutureOfJSAnyToJSPromise|get#toJS'] = function FutureOfJSAnyToJSPromise$124get$35toJS(T, $this) {
    if ($this == null) dart.nullFailed(I[150], 581, 20, "#this");
    return T$3.JSObject()[_as](new dart.global.Promise(js_util._functionToJS2(dart.fn((resolve, reject) => {
      if (resolve == null) dart.nullFailed(I[150], 582, 37, "resolve");
      if (reject == null) dart.nullFailed(I[150], 582, 57, "reject");
      $this.then(T$.ObjectN(), dart.fn(value => {
        resolve.call(resolve, value);
        return value;
      }, T$.ObjectNToObjectN()), {onError: dart.fn((error, stackTrace) => {
          if (error == null) dart.nullFailed(I[150], 586, 27, "error");
          if (stackTrace == null) dart.nullFailed(I[150], 586, 45, "stackTrace");
          let errorConstructor = T$.JavaScriptFunction()[_as](js_interop_unsafe['JSObjectUnsafeUtilExtension|[]'](js_interop.globalContext, "Error"));
          let wrapper = js_interop_unsafe['JSFunctionUnsafeUtilExtension|callAsConstructor'](T$3.JSObject(), errorConstructor, js_interop['StringToJSString|get#toJS']("Dart exception thrown from converted Future. Use the properties 'error' to fetch the boxed error and 'stack' to recover the stack trace."));
          js_interop_unsafe['JSObjectUnsafeUtilExtension|[]='](wrapper, "error", js_interop['ObjectToJSBoxedDartObject|get#toJSBox'](error));
          js_interop_unsafe['JSObjectUnsafeUtilExtension|[]='](wrapper, "stack", js_interop['StringToJSString|get#toJS'](dart.toString(stackTrace)));
          reject.call(reject, wrapper);
          return wrapper;
        }, T$3.ObjectAndStackTraceToJSObject())});
    }, T$3.JavaScriptFunctionAndJavaScriptFunctionToNull()))));
  };
  js_interop['FutureOfVoidToJSPromise|get#toJS'] = function FutureOfVoidToJSPromise$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[150], 614, 17, "#this");
    return T$3.JSObject()[_as](new dart.global.Promise(js_util._functionToJS2(dart.fn((resolve, reject) => {
      if (resolve == null) dart.nullFailed(I[150], 615, 34, "resolve");
      if (reject == null) dart.nullFailed(I[150], 615, 54, "reject");
      $this.then(T$.ObjectN(), dart.fn(_ => resolve.call(resolve), T$3.voidToObjectN()), {onError: dart.fn((error, stackTrace) => {
          if (error == null) dart.nullFailed(I[150], 617, 28, "error");
          if (stackTrace == null) dart.nullFailed(I[150], 617, 46, "stackTrace");
          let errorConstructor = T$.JavaScriptFunction()[_as](js_interop_unsafe['JSObjectUnsafeUtilExtension|[]'](js_interop.globalContext, "Error"));
          let wrapper = js_interop_unsafe['JSFunctionUnsafeUtilExtension|callAsConstructor'](T$3.JSObject(), errorConstructor, js_interop['StringToJSString|get#toJS']("Dart exception thrown from converted Future. Use the properties 'error' to fetch the boxed error and 'stack' to recover the stack trace."));
          js_interop_unsafe['JSObjectUnsafeUtilExtension|[]='](wrapper, "error", js_interop['ObjectToJSBoxedDartObject|get#toJSBox'](error));
          js_interop_unsafe['JSObjectUnsafeUtilExtension|[]='](wrapper, "stack", js_interop['StringToJSString|get#toJS'](dart.toString(stackTrace)));
          reject.call(reject, wrapper);
        }, T$.ObjectAndStackTraceToNull())});
    }, T$3.JavaScriptFunctionAndJavaScriptFunctionToNull()))));
  };
  js_interop['JSArrayBufferToByteBuffer|get#toDart'] = function JSArrayBufferToByteBuffer$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 154, 18, "#this");
    return $this;
  };
  js_interop['ByteBufferToJSArrayBuffer|get#toJS'] = function ByteBufferToJSArrayBuffer$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 161, 21, "#this");
    return T$0.NativeByteBuffer()[_as]($this);
  };
  js_interop['JSDataViewToByteData|get#toDart'] = function JSDataViewToByteData$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 170, 16, "#this");
    return $this;
  };
  js_interop['ByteDataToJSDataView|get#toJS'] = function ByteDataToJSDataView$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 177, 18, "#this");
    return T$3.NativeByteData()[_as]($this);
  };
  js_interop['JSInt8ArrayToInt8List|get#toDart'] = function JSInt8ArrayToInt8List$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 186, 16, "#this");
    return $this;
  };
  js_interop['Int8ListToJSInt8Array|get#toJS'] = function Int8ListToJSInt8Array$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 193, 19, "#this");
    return T$3.NativeInt8List()[_as]($this);
  };
  js_interop['JSUint8ArrayToUint8List|get#toDart'] = function JSUint8ArrayToUint8List$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 202, 17, "#this");
    return $this;
  };
  js_interop['Uint8ListToJSUint8Array|get#toJS'] = function Uint8ListToJSUint8Array$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 209, 20, "#this");
    return T$3.NativeUint8List()[_as]($this);
  };
  js_interop['JSUint8ClampedArrayToUint8ClampedList|get#toDart'] = function JSUint8ClampedArrayToUint8ClampedList$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 218, 24, "#this");
    return $this;
  };
  js_interop['Uint8ClampedListToJSUint8ClampedArray|get#toJS'] = function Uint8ClampedListToJSUint8ClampedArray$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 225, 27, "#this");
    return T$3.NativeUint8ClampedList()[_as]($this);
  };
  js_interop['JSInt16ArrayToInt16List|get#toDart'] = function JSInt16ArrayToInt16List$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 234, 17, "#this");
    return $this;
  };
  js_interop['Int16ListToJSInt16Array|get#toJS'] = function Int16ListToJSInt16Array$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 241, 20, "#this");
    return T$3.NativeInt16List()[_as]($this);
  };
  js_interop['JSUint16ArrayToInt16List|get#toDart'] = function JSUint16ArrayToInt16List$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 250, 18, "#this");
    return $this;
  };
  js_interop['Uint16ListToJSInt16Array|get#toJS'] = function Uint16ListToJSInt16Array$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 257, 21, "#this");
    return T$3.NativeUint16List()[_as]($this);
  };
  js_interop['JSInt32ArrayToInt32List|get#toDart'] = function JSInt32ArrayToInt32List$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 266, 17, "#this");
    return $this;
  };
  js_interop['Int32ListToJSInt32Array|get#toJS'] = function Int32ListToJSInt32Array$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 273, 20, "#this");
    return T$0.NativeInt32List()[_as]($this);
  };
  js_interop['JSUint32ArrayToUint32List|get#toDart'] = function JSUint32ArrayToUint32List$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 282, 18, "#this");
    return $this;
  };
  js_interop['Uint32ListToJSUint32Array|get#toJS'] = function Uint32ListToJSUint32Array$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 289, 21, "#this");
    return T$3.NativeUint32List()[_as]($this);
  };
  js_interop['JSFloat32ArrayToFloat32List|get#toDart'] = function JSFloat32ArrayToFloat32List$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 298, 19, "#this");
    return $this;
  };
  js_interop['Float32ListToJSFloat32Array|get#toJS'] = function Float32ListToJSFloat32Array$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 305, 22, "#this");
    return T$0.NativeFloat32List()[_as]($this);
  };
  js_interop['JSFloat64ArrayToFloat64List|get#toDart'] = function JSFloat64ArrayToFloat64List$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 314, 19, "#this");
    return $this;
  };
  js_interop['Float64ListToJSFloat64Array|get#toJS'] = function Float64ListToJSFloat64Array$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 321, 22, "#this");
    return T$0.NativeFloat64List()[_as]($this);
  };
  js_interop['JSArrayToList|get#toDart'] = function JSArrayToList$124get$35toDart(T, $this) {
    if ($this == null) dart.nullFailed(I[151], 330, 15, "#this");
    let t = $this;
    return T[_eval]("core|List<0>")[_is](t) ? t : t[$cast](T);
  };
  js_interop['ListToJSArray|get#toJS'] = function ListToJSArray$124get$35toJS(T, $this) {
    if ($this == null) dart.nullFailed(I[151], 342, 18, "#this");
    return T$3.JSArrayOfObjectN()[_as]($this);
  };
  js_interop['ListToJSArray|get#toJSProxyOrRef'] = function ListToJSArray$124get$35toJSProxyOrRef(T, $this) {
    if ($this == null) dart.nullFailed(I[151], 354, 18, "#this");
    return T$3.JSArrayOfObjectN()[_as]($this);
  };
  js_interop['JSNumberToNumber|get#toDartDouble'] = function JSNumberToNumber$124get$35toDartDouble($this) {
    if ($this == null) dart.nullFailed(I[151], 363, 14, "#this");
    return $this;
  };
  js_interop['JSNumberToNumber|get#toDartInt'] = function JSNumberToNumber$124get$35toDartInt($this) {
    if ($this == null) dart.nullFailed(I[151], 367, 11, "#this");
    return dart.asInt($this);
  };
  js_interop['DoubleToJSNumber|get#toJS'] = function DoubleToJSNumber$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 376, 16, "#this");
    return js_interop['JSNumber|constructor#_']($this);
  };
  js_interop['NumToJSExtension|get#toJS'] = function NumToJSExtension$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[150], 1060, 16, "#this");
    return js_interop['DoubleToJSNumber|get#toJS']($this[$toDouble]());
  };
  js_interop['JSBooleanToBool|get#toDart'] = function JSBooleanToBool$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 385, 12, "#this");
    return $this;
  };
  js_interop['BoolToJSBoolean|get#toJS'] = function BoolToJSBoolean$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 392, 17, "#this");
    return js_interop['JSBoolean|constructor#_']($this);
  };
  js_interop['JSStringToString|get#toDart'] = function JSStringToString$124get$35toDart($this) {
    if ($this == null) dart.nullFailed(I[151], 401, 14, "#this");
    return $this;
  };
  js_interop['StringToJSString|get#toJS'] = function StringToJSString$124get$35toJS($this) {
    if ($this == null) dart.nullFailed(I[151], 408, 16, "#this");
    return js_interop['JSString|constructor#_']($this);
  };
  js_interop['JSAnyOperatorExtension|add'] = function JSAnyOperatorExtension$124add($this, any) {
    return js_util.add(T$.Object(), $this, any);
  };
  js_interop['JSAnyOperatorExtension|get#add'] = function JSAnyOperatorExtension$124get$35add($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|add']($this, any), T$.ObjectNToObject());
  };
  js_interop['JSAnyOperatorExtension|subtract'] = function JSAnyOperatorExtension$124subtract($this, any) {
    return js_util.subtract(T$.Object(), $this, any);
  };
  js_interop['JSAnyOperatorExtension|get#subtract'] = function JSAnyOperatorExtension$124get$35subtract($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|subtract']($this, any), T$.ObjectNToObject());
  };
  js_interop['JSAnyOperatorExtension|multiply'] = function JSAnyOperatorExtension$124multiply($this, any) {
    return js_util.multiply(T$.Object(), $this, any);
  };
  js_interop['JSAnyOperatorExtension|get#multiply'] = function JSAnyOperatorExtension$124get$35multiply($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|multiply']($this, any), T$.ObjectNToObject());
  };
  js_interop['JSAnyOperatorExtension|divide'] = function JSAnyOperatorExtension$124divide($this, any) {
    return js_util.divide(T$.Object(), $this, any);
  };
  js_interop['JSAnyOperatorExtension|get#divide'] = function JSAnyOperatorExtension$124get$35divide($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|divide']($this, any), T$.ObjectNToObject());
  };
  js_interop['JSAnyOperatorExtension|modulo'] = function JSAnyOperatorExtension$124modulo($this, any) {
    return js_util.modulo(T$.Object(), $this, any);
  };
  js_interop['JSAnyOperatorExtension|get#modulo'] = function JSAnyOperatorExtension$124get$35modulo($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|modulo']($this, any), T$.ObjectNToObject());
  };
  js_interop['JSAnyOperatorExtension|exponentiate'] = function JSAnyOperatorExtension$124exponentiate($this, any) {
    return js_util.exponentiate(T$.Object(), $this, any);
  };
  js_interop['JSAnyOperatorExtension|get#exponentiate'] = function JSAnyOperatorExtension$124get$35exponentiate($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|exponentiate']($this, any), T$.ObjectNToObject());
  };
  js_interop['JSAnyOperatorExtension|greaterThan'] = function JSAnyOperatorExtension$124greaterThan($this, any) {
    return js_interop['JSBoolean|constructor#_'](js_util.greaterThan(T$.dynamic(), $this, any));
  };
  js_interop['JSAnyOperatorExtension|get#greaterThan'] = function JSAnyOperatorExtension$124get$35greaterThan($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|greaterThan']($this, any), T$.ObjectNTobool());
  };
  js_interop['JSAnyOperatorExtension|greaterThanOrEqualTo'] = function JSAnyOperatorExtension$124greaterThanOrEqualTo($this, any) {
    return js_interop['JSBoolean|constructor#_'](js_util.greaterThanOrEqual(T$.dynamic(), $this, any));
  };
  js_interop['JSAnyOperatorExtension|get#greaterThanOrEqualTo'] = function JSAnyOperatorExtension$124get$35greaterThanOrEqualTo($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|greaterThanOrEqualTo']($this, any), T$.ObjectNTobool());
  };
  js_interop['JSAnyOperatorExtension|lessThan'] = function JSAnyOperatorExtension$124lessThan($this, any) {
    return js_interop['JSBoolean|constructor#_'](js_util.lessThan(T$.dynamic(), $this, any));
  };
  js_interop['JSAnyOperatorExtension|get#lessThan'] = function JSAnyOperatorExtension$124get$35lessThan($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|lessThan']($this, any), T$.ObjectNTobool());
  };
  js_interop['JSAnyOperatorExtension|lessThanOrEqualTo'] = function JSAnyOperatorExtension$124lessThanOrEqualTo($this, any) {
    return js_interop['JSBoolean|constructor#_'](js_util.lessThanOrEqual(T$.dynamic(), $this, any));
  };
  js_interop['JSAnyOperatorExtension|get#lessThanOrEqualTo'] = function JSAnyOperatorExtension$124get$35lessThanOrEqualTo($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|lessThanOrEqualTo']($this, any), T$.ObjectNTobool());
  };
  js_interop['JSAnyOperatorExtension|get#equals'] = function JSAnyOperatorExtension$124get$35equals($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|equals']($this, any), T$.ObjectNTobool());
  };
  js_interop['JSAnyOperatorExtension|equals'] = function JSAnyOperatorExtension$124equals($this, any) {
    return js_interop['JSBoolean|constructor#_'](js_util.equal(T$.dynamic(), $this, any));
  };
  js_interop['JSAnyOperatorExtension|notEquals'] = function JSAnyOperatorExtension$124notEquals($this, any) {
    return js_interop['JSBoolean|constructor#_'](js_util.notEqual(T$.dynamic(), $this, any));
  };
  js_interop['JSAnyOperatorExtension|get#notEquals'] = function JSAnyOperatorExtension$124get$35notEquals($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|notEquals']($this, any), T$.ObjectNTobool());
  };
  js_interop['JSAnyOperatorExtension|strictEquals'] = function JSAnyOperatorExtension$124strictEquals($this, any) {
    return js_interop['JSBoolean|constructor#_'](js_util.strictEqual(T$.dynamic(), $this, any));
  };
  js_interop['JSAnyOperatorExtension|get#strictEquals'] = function JSAnyOperatorExtension$124get$35strictEquals($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|strictEquals']($this, any), T$.ObjectNTobool());
  };
  js_interop['JSAnyOperatorExtension|strictNotEquals'] = function JSAnyOperatorExtension$124strictNotEquals($this, any) {
    return js_interop['JSBoolean|constructor#_'](js_util.strictNotEqual(T$.dynamic(), $this, any));
  };
  js_interop['JSAnyOperatorExtension|get#strictNotEquals'] = function JSAnyOperatorExtension$124get$35strictNotEquals($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|strictNotEquals']($this, any), T$.ObjectNTobool());
  };
  js_interop['JSAnyOperatorExtension|unsignedRightShift'] = function JSAnyOperatorExtension$124unsignedRightShift($this, any) {
    return js_interop['NumToJSExtension|get#toJS'](js_util.unsignedRightShift($this, any));
  };
  js_interop['JSAnyOperatorExtension|get#unsignedRightShift'] = function JSAnyOperatorExtension$124get$35unsignedRightShift($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|unsignedRightShift']($this, any), T$.ObjectNTodouble());
  };
  js_interop['JSAnyOperatorExtension|and'] = function JSAnyOperatorExtension$124and($this, any) {
    return js_util.and(T$.ObjectN(), $this, any);
  };
  js_interop['JSAnyOperatorExtension|get#and'] = function JSAnyOperatorExtension$124get$35and($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|and']($this, any), T$.ObjectNToObjectN());
  };
  js_interop['JSAnyOperatorExtension|or'] = function JSAnyOperatorExtension$124or($this, any) {
    return js_util.or(T$.ObjectN(), $this, any);
  };
  js_interop['JSAnyOperatorExtension|get#or'] = function JSAnyOperatorExtension$124get$35or($this) {
    return dart.fn(any => js_interop['JSAnyOperatorExtension|or']($this, any), T$.ObjectNToObjectN());
  };
  js_interop['JSAnyOperatorExtension|get#not'] = function JSAnyOperatorExtension$124get$35not($this) {
    return js_util.not(T$.bool(), $this);
  };
  js_interop['JSAnyOperatorExtension|get#isTruthy'] = function JSAnyOperatorExtension$124get$35isTruthy($this) {
    return js_interop['JSBoolean|constructor#_'](js_util.isTruthy(T$.dynamic(), $this));
  };
  js_interop.importModule = function importModule(moduleName) {
    if (moduleName == null) dart.nullFailed(I[151], 498, 40, "moduleName");
    return import(moduleName);
  };
  dart.copyProperties(js_interop, {
    get globalContext() {
      return T$3.JSObject()[_as](dart.global);
    }
  });
  dart.defineLazy(js_interop, {
    /*js_interop._jsBoxedDartObjectProperty*/get _jsBoxedDartObjectProperty() {
      return Symbol("jsBoxedDartObjectProperty");
    }
  }, false);
  js_interop_unsafe['JSObjectUnsafeUtilExtension|has'] = function JSObjectUnsafeUtilExtension$124has($this, property) {
    if ($this == null) dart.nullFailed(I[152], 36, 8, "#this");
    if (property == null) dart.nullFailed(I[152], 36, 19, "property");
    return js_interop['JSBooleanToBool|get#toDart'](js_interop_unsafe['JSObjectUnsafeUtilExtension|hasProperty']($this, js_interop['StringToJSString|get#toJS'](property)));
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|get#has'] = function JSObjectUnsafeUtilExtension$124get$35has($this) {
    if ($this == null) dart.nullFailed(I[152], 36, 8, "#this");
    return dart.fn(property => {
      if (property == null) dart.nullFailed(I[152], 36, 19, "property");
      return js_interop_unsafe['JSObjectUnsafeUtilExtension|has']($this, property);
    }, T$.StringTobool());
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|hasProperty'] = function JSObjectUnsafeUtilExtension$124hasProperty($this, property) {
    if ($this == null) dart.nullFailed(I[153], 14, 13, "#this");
    if (property == null) dart.nullFailed(I[153], 14, 31, "property");
    return js_interop['BoolToJSBoolean|get#toJS'](property in $this);
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|get#hasProperty'] = function JSObjectUnsafeUtilExtension$124get$35hasProperty($this) {
    if ($this == null) dart.nullFailed(I[152], 39, 22, "#this");
    return dart.fn(property => {
      if (property == null) dart.nullFailed(I[152], 39, 40, "property");
      return js_interop_unsafe['JSObjectUnsafeUtilExtension|hasProperty']($this, property);
    }, T$.ObjectTobool());
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|[]'] = function JSObjectUnsafeUtilExtension$124$91$93($this, property) {
    if ($this == null) dart.nullFailed(I[152], 43, 19, "#this");
    if (property == null) dart.nullFailed(I[152], 43, 29, "property");
    return js_interop_unsafe['JSObjectUnsafeUtilExtension|getProperty'](T$.ObjectN(), $this, js_interop['StringToJSString|get#toJS'](property));
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|getProperty'] = function JSObjectUnsafeUtilExtension$124getProperty(T, $this, property) {
    if ($this == null) dart.nullFailed(I[153], 19, 5, "#this");
    if (property == null) dart.nullFailed(I[153], 19, 41, "property");
    return T[_as]($this[property]);
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|get#getProperty'] = function JSObjectUnsafeUtilExtension$124get$35getProperty($this) {
    if ($this == null) dart.nullFailed(I[152], 46, 14, "#this");
    return dart.gFn((R, property) => {
      if (property == null) dart.nullFailed(I[152], 46, 50, "property");
      return js_interop_unsafe['JSObjectUnsafeUtilExtension|getProperty'](R, $this, property);
    }, T$3.ObjectToR(), dart.constList([T$.ObjectN()], T$.dynamic()));
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|[]='] = function JSObjectUnsafeUtilExtension$124$91$93$61($this, property, value) {
    if ($this == null) dart.nullFailed(I[152], 50, 17, "#this");
    if (property == null) dart.nullFailed(I[152], 50, 28, "property");
    return js_interop_unsafe['JSObjectUnsafeUtilExtension|setProperty']($this, js_interop['StringToJSString|get#toJS'](property), value);
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|setProperty'] = function JSObjectUnsafeUtilExtension$124setProperty($this, property, value) {
    if ($this == null) dart.nullFailed(I[153], 24, 8, "#this");
    if (property == null) dart.nullFailed(I[153], 24, 26, "property");
    return $this[property] = value;
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|get#setProperty'] = function JSObjectUnsafeUtilExtension$124get$35setProperty($this) {
    if ($this == null) dart.nullFailed(I[152], 54, 17, "#this");
    return dart.fn((property, value) => {
      if (property == null) dart.nullFailed(I[152], 54, 35, "property");
      return js_interop_unsafe['JSObjectUnsafeUtilExtension|setProperty']($this, property, value);
    }, T$3.ObjectAndObjectNTovoid());
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|_callMethod'] = function JSObjectUnsafeUtilExtension$124_callMethod($this, method, arg1 = null, arg2 = null, arg3 = null, arg4 = null) {
    if ($this == null) dart.nullFailed(I[153], 29, 10, "#this");
    if (method == null) dart.nullFailed(I[153], 29, 28, "method");
    if (arg1 == null) {
      return $this[method]();
    } else if (arg2 == null) {
      return $this[method](arg1);
    } else if (arg3 == null) {
      return $this[method](arg1, arg2);
    } else if (arg4 == null) {
      return $this[method](arg1, arg2, arg3);
    } else {
      return $this[method](arg1, arg2, arg3, arg4);
    }
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|get#_callMethod'] = function JSObjectUnsafeUtilExtension$124get$35_callMethod($this) {
    if ($this == null) dart.nullFailed(I[152], 56, 19, "#this");
    return dart.fn((method, arg1 = null, arg2 = null, arg3 = null, arg4 = null) => {
      if (method == null) dart.nullFailed(I[152], 56, 37, "method");
      return js_interop_unsafe['JSObjectUnsafeUtilExtension|_callMethod']($this, method, arg1, arg2, arg3, arg4);
    }, T$3.ObjectAndObjectNAndObjectN__ToObjectN());
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|callMethod'] = function JSObjectUnsafeUtilExtension$124callMethod(R, $this, method, arg1 = null, arg2 = null, arg3 = null, arg4 = null) {
    if ($this == null) dart.nullFailed(I[152], 66, 5, "#this");
    if (method == null) dart.nullFailed(I[152], 66, 40, "method");
    return R[_as](js_interop_unsafe['JSObjectUnsafeUtilExtension|_callMethod']($this, method, arg1, arg2, arg3, arg4));
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|get#callMethod'] = function JSObjectUnsafeUtilExtension$124get$35callMethod($this) {
    if ($this == null) dart.nullFailed(I[152], 66, 5, "#this");
    return dart.gFn((R, method, arg1 = null, arg2 = null, arg3 = null, arg4 = null) => {
      if (method == null) dart.nullFailed(I[152], 66, 40, "method");
      return js_interop_unsafe['JSObjectUnsafeUtilExtension|callMethod'](R, $this, method, arg1, arg2, arg3, arg4);
    }, T$3.ObjectAndObjectNAndObjectN__ToR(), dart.constList([T$.ObjectN()], T$.dynamic()));
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|_callMethodVarArgs'] = function JSObjectUnsafeUtilExtension$124_callMethodVarArgs($this, method, $arguments = null) {
    if ($this == null) dart.nullFailed(I[153], 48, 10, "#this");
    if (method == null) dart.nullFailed(I[153], 48, 35, "method");
    return $this[method].apply($this, $arguments);
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|get#_callMethodVarArgs'] = function JSObjectUnsafeUtilExtension$124get$35_callMethodVarArgs($this) {
    if ($this == null) dart.nullFailed(I[152], 70, 19, "#this");
    return dart.fn((method, $arguments = null) => {
      if (method == null) dart.nullFailed(I[152], 70, 44, "method");
      return js_interop_unsafe['JSObjectUnsafeUtilExtension|_callMethodVarArgs']($this, method, $arguments);
    }, T$3.ObjectAndListNOfObjectNToObjectN());
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|callMethodVarArgs'] = function JSObjectUnsafeUtilExtension$124callMethodVarArgs(R, $this, method, $arguments = null) {
    if ($this == null) dart.nullFailed(I[152], 75, 5, "#this");
    if (method == null) dart.nullFailed(I[152], 75, 47, "method");
    return R[_as](js_interop_unsafe['JSObjectUnsafeUtilExtension|_callMethodVarArgs']($this, method, $arguments));
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|get#callMethodVarArgs'] = function JSObjectUnsafeUtilExtension$124get$35callMethodVarArgs($this) {
    if ($this == null) dart.nullFailed(I[152], 75, 5, "#this");
    return dart.gFn((R, method, $arguments = null) => {
      if (method == null) dart.nullFailed(I[152], 75, 47, "method");
      return js_interop_unsafe['JSObjectUnsafeUtilExtension|callMethodVarArgs'](R, $this, method, $arguments);
    }, T$3.ObjectAndListNOfObjectNToR(), dart.constList([T$.ObjectN()], T$.dynamic()));
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|delete'] = function JSObjectUnsafeUtilExtension$124delete($this, property) {
    if ($this == null) dart.nullFailed(I[153], 54, 13, "#this");
    if (property == null) dart.nullFailed(I[153], 54, 26, "property");
    return js_interop['BoolToJSBoolean|get#toJS'](delete $this[property]);
  };
  js_interop_unsafe['JSObjectUnsafeUtilExtension|get#delete'] = function JSObjectUnsafeUtilExtension$124get$35delete($this) {
    if ($this == null) dart.nullFailed(I[152], 80, 22, "#this");
    return dart.fn(property => {
      if (property == null) dart.nullFailed(I[152], 80, 35, "property");
      return js_interop_unsafe['JSObjectUnsafeUtilExtension|delete']($this, property);
    }, T$.ObjectTobool());
  };
  js_interop_unsafe['JSFunctionUnsafeUtilExtension|_callAsConstructor'] = function JSFunctionUnsafeUtilExtension$124_callAsConstructor($this, arg1 = null, arg2 = null, arg3 = null, arg4 = null) {
    if ($this == null) dart.nullFailed(I[153], 63, 12, "#this");
    return js_util.callConstructor(T$3.JSObject(), $this, arg1 == null ? null : (() => {
      let t$36342 = G.JSArrayOfObjectN().of([arg1]);
      if (arg2 != null) t$36342.push(arg2);
      if (arg3 != null) t$36342.push(arg3);
      if (arg4 != null) t$36342.push(arg4);
      return t$36342;
    })());
  };
  js_interop_unsafe['JSFunctionUnsafeUtilExtension|get#_callAsConstructor'] = function JSFunctionUnsafeUtilExtension$124get$35_callAsConstructor($this) {
    if ($this == null) dart.nullFailed(I[152], 85, 21, "#this");
    return dart.fn((arg1 = null, arg2 = null, arg3 = null, arg4 = null) => js_interop_unsafe['JSFunctionUnsafeUtilExtension|_callAsConstructor']($this, arg1, arg2, arg3, arg4), T$3.ObjectNAndObjectNAndObjectN__ToJSObject());
  };
  js_interop_unsafe['JSFunctionUnsafeUtilExtension|callAsConstructor'] = function JSFunctionUnsafeUtilExtension$124callAsConstructor(R, $this, arg1 = null, arg2 = null, arg3 = null, arg4 = null) {
    if ($this == null) dart.nullFailed(I[152], 96, 5, "#this");
    return R[_as](js_interop_unsafe['JSFunctionUnsafeUtilExtension|_callAsConstructor']($this, arg1, arg2, arg3, arg4));
  };
  js_interop_unsafe['JSFunctionUnsafeUtilExtension|get#callAsConstructor'] = function JSFunctionUnsafeUtilExtension$124get$35callAsConstructor($this) {
    if ($this == null) dart.nullFailed(I[152], 96, 5, "#this");
    return dart.gFn((R, arg1 = null, arg2 = null, arg3 = null, arg4 = null) => js_interop_unsafe['JSFunctionUnsafeUtilExtension|callAsConstructor'](R, $this, arg1, arg2, arg3, arg4), T$3.ObjectNAndObjectNAndObjectN__ToR(), dart.constList([T$.dynamic()], T$.dynamic()));
  };
  js_interop_unsafe['JSFunctionUnsafeUtilExtension|_callAsConstructorVarArgs'] = function JSFunctionUnsafeUtilExtension$124_callAsConstructorVarArgs($this, $arguments = null) {
    if ($this == null) dart.nullFailed(I[153], 78, 12, "#this");
    return js_util.callConstructor(T$3.JSObject(), $this, $arguments);
  };
  js_interop_unsafe['JSFunctionUnsafeUtilExtension|get#_callAsConstructorVarArgs'] = function JSFunctionUnsafeUtilExtension$124get$35_callAsConstructorVarArgs($this) {
    if ($this == null) dart.nullFailed(I[152], 100, 21, "#this");
    return dart.fn(($arguments = null) => js_interop_unsafe['JSFunctionUnsafeUtilExtension|_callAsConstructorVarArgs']($this, $arguments), T$3.ListNOfObjectNToJSObject());
  };
  js_interop_unsafe['JSFunctionUnsafeUtilExtension|callAsConstructorVarArgs'] = function JSFunctionUnsafeUtilExtension$124callAsConstructorVarArgs(R, $this, $arguments = null) {
    if ($this == null) dart.nullFailed(I[152], 106, 5, "#this");
    return R[_as](js_interop_unsafe['JSFunctionUnsafeUtilExtension|_callAsConstructorVarArgs']($this, $arguments));
  };
  js_interop_unsafe['JSFunctionUnsafeUtilExtension|get#callAsConstructorVarArgs'] = function JSFunctionUnsafeUtilExtension$124get$35callAsConstructorVarArgs($this) {
    if ($this == null) dart.nullFailed(I[152], 106, 5, "#this");
    return dart.gFn((R, $arguments = null) => js_interop_unsafe['JSFunctionUnsafeUtilExtension|callAsConstructorVarArgs'](R, $this, $arguments), T$3.ListNOfObjectNToR(), dart.constList([T$3.JSObject()], T$.dynamic()));
  };
  var isUndefined$ = dart.privateName(js_util, "NullRejectionException.isUndefined");
  js_util.NullRejectionException = class NullRejectionException extends core.Object {
    get isUndefined() {
      return this[isUndefined$];
    }
    set isUndefined(value) {
      super.isUndefined = value;
    }
    static ['_#new#tearOff'](isUndefined) {
      if (isUndefined == null) dart.nullFailed(I[154], 140, 31, "isUndefined");
      return new js_util.NullRejectionException.new(isUndefined);
    }
    toString() {
      let value = dart.test(this.isUndefined) ? "undefined" : "null";
      return "Promise was rejected with a value of `" + value + "`.";
    }
  };
  (js_util.NullRejectionException.new = function(isUndefined) {
    if (isUndefined == null) dart.nullFailed(I[154], 140, 31, "isUndefined");
    this[isUndefined$] = isUndefined;
    ;
  }).prototype = js_util.NullRejectionException.prototype;
  dart.addRtiResources(js_util.NullRejectionException, ["js_util|NullRejectionException", "core|Exception"]);
  dart.setLibraryUri(js_util.NullRejectionException, I[155]);
  dart.setFieldSignature(js_util.NullRejectionException, () => dart.global.Object.setPrototypeOf({isUndefined: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(js_util.NullRejectionException))));
  dart.defineExtensionMethods(js_util.NullRejectionException, ['toString']);
  js_util._functionToJS0 = function _functionToJS0(f) {
    if (f == null) dart.nullFailed(I[156], 57, 44, "f");
    if (!dart.isDartFunction(f)) {
      dart.throw(new core.ArgumentError.new("Attempting to rewrap a JS function."));
    }
    let ret = function() {
      return js_util._callDartFunctionFast0(f);
    };
    ret[js_util._functionToJSProperty] = f;
    return ret;
  };
  js_util._functionToJS1 = function _functionToJS1(f) {
    if (f == null) dart.nullFailed(I[156], 77, 44, "f");
    if (!dart.isDartFunction(f)) {
      dart.throw(new core.ArgumentError.new("Attempting to rewrap a JS function."));
    }
    let ret = function(arg1) {
      return js_util._callDartFunctionFast1(f, arg1, arguments.length);
    };
    ret[js_util._functionToJSProperty] = f;
    return ret;
  };
  js_util._functionToJS2 = function _functionToJS2(f) {
    if (f == null) dart.nullFailed(I[156], 94, 44, "f");
    if (!dart.isDartFunction(f)) {
      dart.throw(new core.ArgumentError.new("Attempting to rewrap a JS function."));
    }
    let ret = function(arg1, arg2) {
      return js_util._callDartFunctionFast2(f, arg1, arg2, arguments.length);
    };
    ret[js_util._functionToJSProperty] = f;
    return ret;
  };
  js_util._functionToJS3 = function _functionToJS3(f) {
    if (f == null) dart.nullFailed(I[156], 111, 44, "f");
    if (!dart.isDartFunction(f)) {
      dart.throw(new core.ArgumentError.new("Attempting to rewrap a JS function."));
    }
    let ret = function(arg1, arg2, arg3) {
      return js_util._callDartFunctionFast3(f, arg1, arg2, arg3, arguments.length);
    };
    ret[js_util._functionToJSProperty] = f;
    return ret;
  };
  js_util._functionToJS4 = function _functionToJS4(f) {
    if (f == null) dart.nullFailed(I[156], 128, 44, "f");
    if (!dart.isDartFunction(f)) {
      dart.throw(new core.ArgumentError.new("Attempting to rewrap a JS function."));
    }
    let ret = function(arg1, arg2, arg3, arg4) {
      return js_util._callDartFunctionFast4(f, arg1, arg2, arg3, arg4, arguments.length);
    };
    ret[js_util._functionToJSProperty] = f;
    return ret;
  };
  js_util._functionToJS5 = function _functionToJS5(f) {
    if (f == null) dart.nullFailed(I[156], 145, 44, "f");
    if (!dart.isDartFunction(f)) {
      dart.throw(new core.ArgumentError.new("Attempting to rewrap a JS function."));
    }
    let ret = function(arg1, arg2, arg3, arg4, arg5) {
      return js_util._callDartFunctionFast5(f, arg1, arg2, arg3, arg4, arg5, arguments.length);
    };
    ret[js_util._functionToJSProperty] = f;
    return ret;
  };
  js_util._functionToJSN = function _functionToJSN(f, maxLength) {
    if (f == null) dart.nullFailed(I[156], 162, 44, "f");
    if (maxLength == null) dart.nullFailed(I[156], 162, 51, "maxLength");
    if (!dart.isDartFunction(f)) {
      dart.throw(new core.ArgumentError.new("Attempting to rewrap a JS function."));
    }
    let ret = function(...args) {
      return dart.dcall(f, Array.prototype.slice.call(args, 0, Math.min(args.length, maxLength)));
    };
    ret[js_util._functionToJSProperty] = f;
    return ret;
  };
  js_util._callDartFunctionFast0 = function _callDartFunctionFast0(callback) {
    return callback();
  };
  js_util._callDartFunctionFast1 = function _callDartFunctionFast1(callback, arg1, length) {
    if (length == null) dart.nullFailed(I[156], 183, 44, "length");
    if (dart.notNull(length) >= 1) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1]);
      if (error != null) return error;
      return callback(arg1);
    } else {
      let error = dart.validateFunctionToJSArgs(callback, []);
      if (error != null) return error;
      return callback();
    }
  };
  js_util._callDartFunctionFast2 = function _callDartFunctionFast2(callback, arg1, arg2, length) {
    if (length == null) dart.nullFailed(I[156], 196, 50, "length");
    if (dart.notNull(length) >= 2) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2]);
      if (error != null) return error;
      return callback(arg1, arg2);
    } else if (length === 1) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1]);
      if (error != null) return error;
      return callback(arg1);
    } else {
      let error = dart.validateFunctionToJSArgs(callback, []);
      if (error != null) return error;
      return callback();
    }
  };
  js_util._callDartFunctionFast3 = function _callDartFunctionFast3(callback, arg1, arg2, arg3, length) {
    if (length == null) dart.nullFailed(I[156], 214, 56, "length");
    if (dart.notNull(length) >= 3) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2, arg3]);
      if (error != null) return error;
      return callback(arg1, arg2, arg3);
    } else if (length === 2) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2]);
      if (error != null) return error;
      return callback(arg1, arg2);
    } else if (length === 1) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1]);
      if (error != null) return error;
      return callback(arg1);
    } else {
      let error = dart.validateFunctionToJSArgs(callback, []);
      if (error != null) return error;
      return callback();
    }
  };
  js_util._callDartFunctionFast4 = function _callDartFunctionFast4(callback, arg1, arg2, arg3, arg4, length) {
    if (length == null) dart.nullFailed(I[156], 237, 62, "length");
    if (dart.notNull(length) >= 4) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2, arg3, arg4]);
      if (error != null) return error;
      return callback(arg1, arg2, arg3, arg4);
    } else if (length === 3) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2, arg3]);
      if (error != null) return error;
      return callback(arg1, arg2, arg3);
    } else if (length === 2) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2]);
      if (error != null) return error;
      return callback(arg1, arg2);
    } else if (length === 1) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1]);
      if (error != null) return error;
      return callback(arg1);
    } else {
      let error = dart.validateFunctionToJSArgs(callback, []);
      if (error != null) return error;
      return callback();
    }
  };
  js_util._callDartFunctionFast5 = function _callDartFunctionFast5(callback, arg1, arg2, arg3, arg4, arg5, length) {
    if (length == null) dart.nullFailed(I[156], 265, 68, "length");
    if (dart.notNull(length) >= 5) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2, arg3, arg4, arg5]);
      if (error != null) return error;
      return callback(arg1, arg2, arg3, arg4, arg5);
    } else if (length === 4) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2, arg3, arg4]);
      if (error != null) return error;
      return callback(arg1, arg2, arg3, arg4);
    } else if (length === 3) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2, arg3]);
      if (error != null) return error;
      return callback(arg1, arg2, arg3);
    } else if (length === 2) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1, arg2]);
      if (error != null) return error;
      return callback(arg1, arg2);
    } else if (length === 1) {
      let error = dart.validateFunctionToJSArgs(callback, [arg1]);
      if (error != null) return error;
      return callback(arg1);
    } else {
      let error = dart.validateFunctionToJSArgs(callback, []);
      if (error != null) return error;
      return callback();
    }
  };
  js_util._jsFunctionToDart = function _jsFunctionToDart(f) {
    if (f == null) dart.nullFailed(I[156], 298, 47, "f");
    return f[js_util._functionToJSProperty];
  };
  js_util._noJsifyRequired = function _noJsifyRequired(o) {
    return o == null || typeof o == 'boolean' || typeof o == 'number' || typeof o == 'string' || T$0.Int8List()[_is](o) || T$.Uint8List()[_is](o) || T$0.Uint8ClampedList()[_is](o) || T$0.Int16List()[_is](o) || T$0.Uint16List()[_is](o) || T$0.Int32List()[_is](o) || T$0.Uint32List()[_is](o) || T$0.Float32List()[_is](o) || T$0.Float64List()[_is](o) || T$0.ByteBuffer()[_is](o) || T$0.ByteData()[_is](o);
  };
  js_util._getPropertyTrustType = function _getPropertyTrustType(T, o, name) {
    if (o == null) dart.nullFailed(I[157], 88, 35, "o");
    if (name == null) dart.nullFailed(I[157], 88, 45, "name");
    return o[name];
  };
  js_util._setPropertyUnchecked = function _setPropertyUnchecked(T, o, name, value) {
    if (o == null) dart.nullFailed(I[157], 103, 35, "o");
    if (name == null) dart.nullFailed(I[157], 103, 45, "name");
    return o[name] = value;
  };
  js_util._callMethodTrustType = function _callMethodTrustType(T, o, method, args) {
    if (o == null) dart.nullFailed(I[157], 114, 34, "o");
    if (method == null) dart.nullFailed(I[157], 114, 44, "method");
    if (args == null) dart.nullFailed(I[157], 114, 66, "args");
    _js_helper.assertInteropArgs(args);
    return o[method].apply(o, args);
  };
  js_util._callMethodUnchecked0 = function _callMethodUnchecked0(T, o, method) {
    if (o == null) dart.nullFailed(I[157], 125, 35, "o");
    if (method == null) dart.nullFailed(I[157], 125, 45, "method");
    return T[_as](o[method]());
  };
  js_util._callMethodUncheckedTrustType0 = function _callMethodUncheckedTrustType0(T, o, method) {
    if (o == null) dart.nullFailed(I[157], 136, 44, "o");
    if (method == null) dart.nullFailed(I[157], 136, 54, "method");
    return o[method]();
  };
  js_util._callMethodUnchecked1 = function _callMethodUnchecked1(T, o, method, arg1) {
    if (o == null) dart.nullFailed(I[157], 146, 35, "o");
    if (method == null) dart.nullFailed(I[157], 146, 45, "method");
    return T[_as](o[method](arg1));
  };
  js_util._callMethodUncheckedTrustType1 = function _callMethodUncheckedTrustType1(T, o, method, arg1) {
    if (o == null) dart.nullFailed(I[157], 157, 44, "o");
    if (method == null) dart.nullFailed(I[157], 157, 54, "method");
    return o[method](arg1);
  };
  js_util._callMethodUnchecked2 = function _callMethodUnchecked2(T, o, method, arg1, arg2) {
    if (o == null) dart.nullFailed(I[157], 168, 12, "o");
    if (method == null) dart.nullFailed(I[157], 168, 22, "method");
    return T[_as](o[method](arg1, arg2));
  };
  js_util._callMethodUncheckedTrustType2 = function _callMethodUncheckedTrustType2(T, o, method, arg1, arg2) {
    if (o == null) dart.nullFailed(I[157], 180, 12, "o");
    if (method == null) dart.nullFailed(I[157], 180, 22, "method");
    return o[method](arg1, arg2);
  };
  js_util._callMethodUnchecked3 = function _callMethodUnchecked3(T, o, method, arg1, arg2, arg3) {
    if (o == null) dart.nullFailed(I[157], 191, 12, "o");
    if (method == null) dart.nullFailed(I[157], 191, 22, "method");
    return T[_as](o[method](arg1, arg2, arg3));
  };
  js_util._callMethodUncheckedTrustType3 = function _callMethodUncheckedTrustType3(T, o, method, arg1, arg2, arg3) {
    if (o == null) dart.nullFailed(I[157], 204, 12, "o");
    if (method == null) dart.nullFailed(I[157], 204, 22, "method");
    return o[method](arg1, arg2, arg3);
  };
  js_util._callMethodUnchecked4 = function _callMethodUnchecked4(T, o, method, arg1, arg2, arg3, arg4) {
    if (o == null) dart.nullFailed(I[157], 214, 35, "o");
    if (method == null) dart.nullFailed(I[157], 214, 45, "method");
    return T[_as](o[method](arg1, arg2, arg3, arg4));
  };
  js_util._callMethodUncheckedTrustType4 = function _callMethodUncheckedTrustType4(T, o, method, arg1, arg2, arg3, arg4) {
    if (o == null) dart.nullFailed(I[157], 227, 44, "o");
    if (method == null) dart.nullFailed(I[157], 227, 54, "method");
    return o[method](arg1, arg2, arg3, arg4);
  };
  js_util._callConstructorUnchecked0 = function _callConstructorUnchecked0(T, constr) {
    if (constr == null) dart.nullFailed(I[157], 306, 40, "constr");
    return T[_as](new constr());
  };
  js_util._callConstructorUnchecked1 = function _callConstructorUnchecked1(T, constr, arg1) {
    if (constr == null) dart.nullFailed(I[157], 316, 40, "constr");
    return T[_as](new constr(arg1));
  };
  js_util._callConstructorUnchecked2 = function _callConstructorUnchecked2(T, constr, arg1, arg2) {
    if (constr == null) dart.nullFailed(I[157], 326, 40, "constr");
    return T[_as](new constr(arg1, arg2));
  };
  js_util._callConstructorUnchecked3 = function _callConstructorUnchecked3(T, constr, arg1, arg2, arg3) {
    if (constr == null) dart.nullFailed(I[157], 337, 12, "constr");
    return T[_as](new constr(arg1, arg2, arg3));
  };
  js_util._callConstructorUnchecked4 = function _callConstructorUnchecked4(T, constr, arg1, arg2, arg3, arg4) {
    if (constr == null) dart.nullFailed(I[157], 348, 12, "constr");
    return T[_as](new constr(arg1, arg2, arg3, arg4));
  };
  js_util._isJavaScriptDate = function _isJavaScriptDate(value) {
    return value instanceof Date;
  };
  js_util._isJavaScriptRegExp = function _isJavaScriptRegExp(value) {
    return value instanceof RegExp;
  };
  js_util._isJavaScriptPromise = function _isJavaScriptPromise(value) {
    return typeof Promise != "undefined" && value instanceof Promise;
  };
  js_util._dateToDateTime = function _dateToDateTime(date) {
    let millisSinceEpoch = date.getTime();
    return new core.DateTime.fromMillisecondsSinceEpoch(millisSinceEpoch, {isUtc: true});
  };
  js_util._noDartifyRequired = function _noDartifyRequired(o) {
    return o == null || typeof o === 'boolean' || typeof o === 'number' || typeof o === 'string' || o instanceof Int8Array || o instanceof Uint8Array || o instanceof Uint8ClampedArray || o instanceof Int16Array || o instanceof Uint16Array || o instanceof Int32Array || o instanceof Uint32Array || o instanceof Float32Array || o instanceof Float64Array || o instanceof ArrayBuffer || o instanceof DataView;
  };
  js_util.jsify = function jsify(object) {
    if (dart.test(js_util._noJsifyRequired(object))) {
      return object;
    }
    let _convertedObjects = new (G.IdentityMapOfObjectN$ObjectN()).new();
    function _convert(o) {
      if (dart.test(js_util._noJsifyRequired(o))) {
        return o;
      }
      if (dart.test(_convertedObjects[$containsKey](o))) {
        return _convertedObjects[$_get](o);
      }
      if (T$1.MapOfObjectN$ObjectN()[_is](o)) {
        let convertedMap = {};
        _convertedObjects[$_set](o, convertedMap);
        for (let key of o[$keys]) {
          convertedMap[key] = _convert(o[$_get](key));
        }
        return convertedMap;
      } else if (T$0.IterableOfObjectN()[_is](o)) {
        let convertedList = [];
        _convertedObjects[$_set](o, convertedList);
        convertedList[$addAll](o[$map](T$.dynamic(), _convert));
        return convertedList;
      } else {
        return o;
      }
    }
    dart.fn(_convert, T$.ObjectNToObjectN());
    return _convert(object);
  };
  js_util.newObject = function newObject(T) {
    return _js_helper.createObjectLiteral(T);
  };
  js_util.hasProperty = function hasProperty(o, name) {
    if (o == null) dart.nullFailed(I[157], 77, 25, "o");
    if (name == null) dart.nullFailed(I[157], 77, 35, "name");
    return name in o;
  };
  js_util.getProperty = function getProperty(T, o, name) {
    if (o == null) dart.nullFailed(I[157], 80, 25, "o");
    if (name == null) dart.nullFailed(I[157], 80, 35, "name");
    return T[_as](o[name]);
  };
  js_util.setProperty = function setProperty(T, o, name, value) {
    if (o == null) dart.nullFailed(I[157], 92, 25, "o");
    if (name == null) dart.nullFailed(I[157], 92, 35, "name");
    _js_helper.assertInterop(value);
    return o[name] = value;
  };
  js_util.callMethod = function callMethod$(T, o, method, args) {
    if (o == null) dart.nullFailed(I[157], 108, 24, "o");
    if (method == null) dart.nullFailed(I[157], 108, 34, "method");
    if (args == null) dart.nullFailed(I[157], 108, 56, "args");
    _js_helper.assertInteropArgs(args);
    return T[_as](o[method].apply(o, args));
  };
  js_util.instanceof = function $instanceof(o, type) {
    if (type == null) dart.nullFailed(I[157], 234, 35, "type");
    return o instanceof type;
  };
  js_util.callConstructor = function callConstructor(T, constr, $arguments) {
    let t$36350;
    if (constr == null) dart.nullFailed(I[157], 238, 29, "constr");
    if ($arguments == null) {
      return T[_as](new constr());
    } else {
      _js_helper.assertInteropArgs($arguments);
    }
    if ($arguments instanceof Array) {
      let argumentCount = $arguments.length;
      switch (argumentCount) {
        case 0:
          {
            return T[_as](new constr());
          }
        case 1:
          {
            let arg0 = $arguments[0];
            return T[_as](new constr(arg0));
          }
        case 2:
          {
            let arg0 = $arguments[0];
            let arg1 = $arguments[1];
            return T[_as](new constr(arg0, arg1));
          }
        case 3:
          {
            let arg0 = $arguments[0];
            let arg1 = $arguments[1];
            let arg2 = $arguments[2];
            return T[_as](new constr(arg0, arg1, arg2));
          }
        case 4:
          {
            let arg0 = $arguments[0];
            let arg1 = $arguments[1];
            let arg2 = $arguments[2];
            let arg3 = $arguments[3];
            return T[_as](new constr(arg0, arg1, arg2, arg3));
          }
      }
    }
    let args = (t$36350 = [null], (() => {
      t$36350[$addAll]($arguments);
      return t$36350;
    })());
    let factoryFunction = constr.bind.apply(constr, args);
    String(factoryFunction);
    return T[_as](new factoryFunction());
  };
  js_util.add = function add(T, first, second) {
    return T[_as](first + second);
  };
  js_util.subtract = function subtract(T, first, second) {
    return T[_as](first - second);
  };
  js_util.multiply = function multiply(T, first, second) {
    return T[_as](first * second);
  };
  js_util.divide = function divide(T, first, second) {
    return T[_as](first / second);
  };
  js_util.exponentiate = function exponentiate(T, first, second) {
    return T[_as](first ** second);
  };
  js_util.modulo = function modulo(T, first, second) {
    return T[_as](first % second);
  };
  js_util.equal = function equal(T, first, second) {
    return first == second;
  };
  js_util.strictEqual = function strictEqual(T, first, second) {
    return first === second;
  };
  js_util.notEqual = function notEqual(T, first, second) {
    return first != second;
  };
  js_util.strictNotEqual = function strictNotEqual(T, first, second) {
    return first !== second;
  };
  js_util.greaterThan = function greaterThan(T, first, second) {
    return first > second;
  };
  js_util.greaterThanOrEqual = function greaterThanOrEqual(T, first, second) {
    return first >= second;
  };
  js_util.lessThan = function lessThan(T, first, second) {
    return first < second;
  };
  js_util.lessThanOrEqual = function lessThanOrEqual(T, first, second) {
    return first <= second;
  };
  js_util.typeofEquals = function typeofEquals(T, o, type) {
    if (type == null) dart.nullFailed(I[157], 439, 40, "type");
    return typeof o == type;
  };
  js_util.not = function not(T, o) {
    return T[_as](!o);
  };
  js_util.isTruthy = function isTruthy(T, o) {
    return !!o;
  };
  js_util.or = function or(T, first, second) {
    return T[_as](first || second);
  };
  js_util.and = function and(T, first, second) {
    return T[_as](first && second);
  };
  js_util.delete = function $delete(T, o, property) {
    if (o == null) dart.nullFailed(I[157], 469, 23, "o");
    if (property == null) dart.nullFailed(I[157], 469, 33, "property");
    return delete o[property];
  };
  js_util.unsignedRightShift = function unsignedRightShift(leftOperand, rightOperand) {
    return leftOperand >>> rightOperand;
  };
  js_util.promiseToFuture = function promiseToFuture(T, jsPromise) {
    if (jsPromise == null) dart.nullFailed(I[157], 480, 37, "jsPromise");
    let completer = async.Completer$(T).new();
    let success = _js_helper.convertDartClosureToJS(T$.dynamicTovoid(), dart.fn(r => completer.complete(T[_eval]("0/?")[_as](r)), T$.dynamicTovoid()), 1);
    let error = _js_helper.convertDartClosureToJS(T$.dynamicTovoid(), dart.fn(e => {
      if (e == null) {
        return completer.completeError(new js_util.NullRejectionException.new(e === undefined));
      }
      return completer.completeError(T$.Object()[_as](e));
    }, T$.dynamicTovoid()), 1);
    jsPromise.then(success, error);
    return completer.future;
  };
  js_util._getConstructor = function _getConstructor(constructorName) {
    if (constructorName == null) dart.nullFailed(I[154], 163, 32, "constructorName");
    return js_util.getProperty(T$.ObjectN(), js_util.globalThis, constructorName);
  };
  js_util.instanceOfString = function instanceOfString(element, objectType) {
    if (objectType == null) dart.nullFailed(I[154], 168, 47, "objectType");
    let constructor = js_util._getConstructor(objectType);
    return constructor != null && dart.test(js_util.instanceof(element, constructor));
  };
  js_util.objectGetPrototypeOf = function objectGetPrototypeOf(object) {
    return Object.getPrototypeOf(object);
  };
  js_util.objectKeys = function objectKeys(object) {
    return Object.keys(object);
  };
  js_util.isJavaScriptArray = function isJavaScriptArray(value) {
    return value instanceof Array;
  };
  js_util.isJavaScriptSimpleObject = function isJavaScriptSimpleObject(value) {
    let proto = Object.getPrototypeOf(value);
    return proto === Object.prototype || proto === null;
  };
  js_util.dartify = function dartify(o) {
    if (dart.test(js_util._noDartifyRequired(o))) {
      return o;
    }
    let _convertedObjects = new (G.IdentityMapOfObjectN$ObjectN()).new();
    function convert(o) {
      if (dart.test(js_util._noDartifyRequired(o))) {
        return o;
      }
      if (dart.test(_convertedObjects[$containsKey](dart.nullCheck(o)))) {
        return _convertedObjects[$_get](o);
      }
      if (dart.test(js_util._isJavaScriptDate(o))) {
        return js_util._dateToDateTime(o);
      }
      if (dart.test(js_util._isJavaScriptRegExp(o))) {
        dart.throw(new core.ArgumentError.new("structured clone of RegExp"));
      }
      if (dart.test(js_util._isJavaScriptPromise(o))) {
        return js_util.promiseToFuture(T$.ObjectN(), o);
      }
      if (dart.test(js_util.isJavaScriptSimpleObject(o))) {
        let dartObject = new (G.LinkedMapOfObjectN$ObjectN()).new();
        _convertedObjects[$_set](o, dartObject);
        let originalKeys = js_util.objectKeys(o);
        let dartKeys = G.JSArrayOfObjectN().of([]);
        for (let key of originalKeys) {
          dartKeys[$add](js_util.dartify(key));
        }
        for (let i = 0; i < dart.notNull(originalKeys[$length]); i = i + 1) {
          let jsKey = originalKeys[$_get](i);
          let dartKey = dartKeys[$_get](i);
          if (jsKey != null) {
            dartObject[$_set](dartKey, convert(js_util.getProperty(T$.ObjectN(), o, jsKey)));
          }
        }
        return dartObject;
      }
      if (dart.test(js_util.isJavaScriptArray(o))) {
        let l = o;
        let dartObject = G.JSArrayOfObjectN().of([]);
        _convertedObjects[$_set](o, dartObject);
        let length = js_util.getProperty(T$.int(), o, "length");
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          dartObject[$add](convert(l[$_get](i)));
        }
        return dartObject;
      }
      return o;
    }
    dart.fn(convert, T$.ObjectNToObjectN());
    return convert(o);
  };
  js_util.allowInterop = function allowInterop(F, f) {
    if (f == null) dart.nullFailed(I[156], 14, 38, "f");
    if (!dart.isDartFunction(f)) return f;
    let ret = F[_eval]("0?")[_as](js_util._interopExpando._get(f));
    if (ret == null) {
      ret = function(...args) {
        return dart.dcall(f, args);
      };
      js_util._interopExpando._set(f, ret);
    }
    return ret;
  };
  js_util.allowInteropCaptureThis = function allowInteropCaptureThis(f) {
    if (f == null) dart.nullFailed(I[156], 33, 43, "f");
    if (!dart.isDartFunction(f)) return f;
    let ret = js_util._interopCaptureThisExpando._get(f);
    if (ret == null) {
      ret = function(...arguments$) {
        let args = [this];
        args.push.apply(args, arguments$);
        return dart.dcall(f, args);
      };
      js_util._interopCaptureThisExpando._set(f, ret);
    }
    return ret;
  };
  dart.copyProperties(js_util, {
    get globalThis() {
      return globalThis;
    },
    get objectPrototype() {
      return Object.prototype;
    }
  });
  dart.defineLazy(js_util, {
    /*js_util._interopExpando*/get _interopExpando() {
      return new (G.ExpandoOfFunction()).new();
    },
    set _interopExpando(value) {
      if (value == null) dart.nullFailed(I[156], 11, 19, "_interopExpando");
    },
    /*js_util._interopCaptureThisExpando*/get _interopCaptureThisExpando() {
      return new (G.ExpandoOfFunction()).new();
    },
    set _interopCaptureThisExpando(value) {
      if (value == null) dart.nullFailed(I[156], 30, 19, "_interopCaptureThisExpando");
    },
    /*js_util._functionToJSPropertyName*/get _functionToJSPropertyName() {
      return "_$dart_dartClosure";
    },
    /*js_util._functionToJSProperty*/get _functionToJSProperty() {
      return Symbol(js_util._functionToJSPropertyName);
    }
  }, false);
  math._JSRandom = class _JSRandom extends core.Object {
    static ['_#new#tearOff']() {
      return new math._JSRandom.new();
    }
    nextInt(max) {
      if (max == null) dart.nullFailed(I[158], 86, 19, "max");
      if (dart.notNull(max) <= 0 || dart.notNull(max) > 4294967296.0) {
        dart.throw(new core.RangeError.new("max must be in range 0 < max ≤ 2^32, was " + dart.str(max)));
      }
      return Math.random() * max >>> 0;
    }
    nextDouble() {
      return Math.random();
    }
    nextBool() {
      return Math.random() < 0.5;
    }
  };
  (math._JSRandom.new = function() {
    ;
  }).prototype = math._JSRandom.prototype;
  dart.addRtiResources(math._JSRandom, ["math|_JSRandom", "math|Random"]);
  dart.setMethodSignature(math._JSRandom, () => dart.global.Object.setPrototypeOf({
    nextInt: T$.intToint(),
    nextDouble: T$.VoidTodouble(),
    nextBool: T$.VoidTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(math._JSRandom))));
  dart.setLibraryUri(math._JSRandom, I[159]);
  var _lo = dart.privateName(math, "_lo");
  var _hi = dart.privateName(math, "_hi");
  var _nextState = dart.privateName(math, "_nextState");
  math._Random = class _Random extends core.Object {
    static ['_#new#tearOff'](seed) {
      if (seed == null) dart.nullFailed(I[158], 127, 15, "seed");
      return new math._Random.new(seed);
    }
    [_nextState]() {
      let tmpHi = 4294901760 * this[_lo];
      let tmpHiLo = (tmpHi & 4294967295.0) >>> 0;
      let tmpHiHi = tmpHi - tmpHiLo;
      let tmpLo = 55905 * this[_lo];
      let tmpLoLo = (tmpLo & 4294967295.0) >>> 0;
      let tmpLoHi = tmpLo - tmpLoLo;
      let newLo = tmpLoLo + tmpHiLo + this[_hi];
      this[_lo] = (newLo & 4294967295.0) >>> 0;
      let newLoHi = newLo - this[_lo];
      this[_hi] = (((tmpLoHi + tmpHiHi + newLoHi) / 4294967296.0)[$truncate]() & 4294967295.0) >>> 0;
      if (!(this[_lo] < 4294967296.0)) dart.assertFailed(null, I[158], 218, 12, "_lo < _POW2_32");
      if (!(this[_hi] < 4294967296.0)) dart.assertFailed(null, I[158], 219, 12, "_hi < _POW2_32");
    }
    nextInt(max) {
      if (max == null) dart.argumentError(max);
      if (max <= 0 || max > 4294967296.0) {
        dart.throw(new core.RangeError.new("max must be in range 0 < max ≤ 2^32, was " + dart.strSafe(max)));
      }
      if ((max & max - 1) === 0) {
        this[_nextState]();
        return (this[_lo] & max - 1) >>> 0;
      }
      let rnd32 = null;
      let result = null;
      do {
        this[_nextState]();
        rnd32 = this[_lo];
        result = rnd32[$remainder](max)[$toInt]();
      } while (dart.notNull(rnd32) - dart.notNull(result) + max >= 4294967296.0);
      return result;
    }
    nextDouble() {
      this[_nextState]();
      let bits26 = (this[_lo] & (1 << 26) - 1) >>> 0;
      this[_nextState]();
      let bits27 = (this[_lo] & (1 << 27) - 1) >>> 0;
      return (bits26 * 134217728 + bits27) / 9007199254740992.0;
    }
    nextBool() {
      this[_nextState]();
      return (this[_lo] & 1) === 0;
    }
  };
  (math._Random.new = function(seed) {
    if (seed == null) dart.nullFailed(I[158], 127, 15, "seed");
    this[_lo] = 0;
    this[_hi] = 0;
    let empty_seed = 0;
    if (dart.notNull(seed) < 0) {
      empty_seed = -1;
    }
    do {
      let low = (dart.notNull(seed) & 4294967295.0) >>> 0;
      seed = ((dart.notNull(seed) - low) / 4294967296.0)[$truncate]();
      let high = (dart.notNull(seed) & 4294967295.0) >>> 0;
      seed = ((dart.notNull(seed) - high) / 4294967296.0)[$truncate]();
      let tmplow = low << 21 >>> 0;
      let tmphigh = (high << 21 | low[$rightShift](11)) >>> 0;
      tmplow = ((~low & 4294967295.0) >>> 0) + tmplow;
      low = (tmplow & 4294967295.0) >>> 0;
      high = ((~high >>> 0) + tmphigh + ((tmplow - low) / 4294967296)[$truncate]() & 4294967295.0) >>> 0;
      tmphigh = high[$rightShift](24);
      tmplow = (low[$rightShift](24) | high << 8 >>> 0) >>> 0;
      low = (low ^ tmplow) >>> 0;
      high = (high ^ tmphigh) >>> 0;
      tmplow = low * 265;
      low = (tmplow & 4294967295.0) >>> 0;
      high = (high * 265 + ((tmplow - low) / 4294967296)[$truncate]() & 4294967295.0) >>> 0;
      tmphigh = high[$rightShift](14);
      tmplow = (low[$rightShift](14) | high << 18 >>> 0) >>> 0;
      low = (low ^ tmplow) >>> 0;
      high = (high ^ tmphigh) >>> 0;
      tmplow = low * 21;
      low = (tmplow & 4294967295.0) >>> 0;
      high = (high * 21 + ((tmplow - low) / 4294967296)[$truncate]() & 4294967295.0) >>> 0;
      tmphigh = high[$rightShift](28);
      tmplow = (low[$rightShift](28) | high << 4 >>> 0) >>> 0;
      low = (low ^ tmplow) >>> 0;
      high = (high ^ tmphigh) >>> 0;
      tmplow = low << 31 >>> 0;
      tmphigh = (high << 31 | low[$rightShift](1)) >>> 0;
      tmplow = tmplow + low;
      low = (tmplow & 4294967295.0) >>> 0;
      high = (high + tmphigh + ((tmplow - low) / 4294967296)[$truncate]() & 4294967295.0) >>> 0;
      tmplow = this[_lo] * 1037;
      this[_lo] = (tmplow & 4294967295.0) >>> 0;
      this[_hi] = (this[_hi] * 1037 + ((tmplow - this[_lo]) / 4294967296)[$truncate]() & 4294967295.0) >>> 0;
      this[_lo] = (this[_lo] ^ low) >>> 0;
      this[_hi] = (this[_hi] ^ high) >>> 0;
    } while (seed !== empty_seed);
    if (this[_hi] === 0 && this[_lo] === 0) {
      this[_lo] = 23063;
    }
    this[_nextState]();
    this[_nextState]();
    this[_nextState]();
    this[_nextState]();
  }).prototype = math._Random.prototype;
  dart.addRtiResources(math._Random, ["math|_Random", "math|Random"]);
  dart.setMethodSignature(math._Random, () => dart.global.Object.setPrototypeOf({
    [_nextState]: T$.VoidTovoid(),
    nextInt: T$.intToint(),
    nextDouble: T$.VoidTodouble(),
    nextBool: T$.VoidTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(math._Random))));
  dart.setLibraryUri(math._Random, I[159]);
  dart.setFieldSignature(math._Random, () => dart.global.Object.setPrototypeOf({
    [_lo]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_hi]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(math._Random))));
  dart.setStaticFieldSignature(math._Random, () => ['_POW2_53_D', '_POW2_27_D', '_MASK32']);
  dart.defineLazy(math._Random, {
    /*math._Random._POW2_53_D*/get _POW2_53_D() {
      return 9007199254740992.0;
    },
    /*math._Random._POW2_27_D*/get _POW2_27_D() {
      return 134217728;
    },
    /*math._Random._MASK32*/get _MASK32() {
      return 4294967295.0;
    }
  }, false);
  var _buffer$0 = dart.privateName(math, "_buffer");
  var _getRandomBytes = dart.privateName(math, "_getRandomBytes");
  math._JSSecureRandom = class _JSSecureRandom extends core.Object {
    static ['_#new#tearOff']() {
      return new math._JSSecureRandom.new();
    }
    [_getRandomBytes](start, length) {
      if (start == null) dart.nullFailed(I[158], 276, 28, "start");
      if (length == null) dart.nullFailed(I[158], 276, 39, "length");
      crypto.getRandomValues(this[_buffer$0][$buffer][$asUint8List](start, length));
    }
    nextBool() {
      this[_getRandomBytes](0, 1);
      return this[_buffer$0][$getUint8](0)[$isOdd];
    }
    nextDouble() {
      this[_getRandomBytes](1, 7);
      this[_buffer$0][$setUint8](0, 63);
      let highByte = this[_buffer$0][$getUint8](1);
      this[_buffer$0][$setUint8](1, (dart.notNull(highByte) | 240) >>> 0);
      let result = dart.notNull(this[_buffer$0][$getFloat64](0)) - 1.0;
      if ((dart.notNull(highByte) & 16) !== 0) {
        result = result + 1.1102230246251565e-16;
      }
      return result;
    }
    nextInt(max) {
      if (max == null) dart.argumentError(max);
      if (max <= 0 || max > 4294967296.0) {
        dart.throw(new core.RangeError.new("max must be in range 0 < max ≤ 2^32, was " + dart.strSafe(max)));
      }
      let byteCount = 1;
      if (max > 255) {
        byteCount = byteCount + 1;
        if (max > 65535) {
          byteCount = byteCount + 1;
          if (max > 16777215) {
            byteCount = byteCount + 1;
          }
        }
      }
      this[_buffer$0][$setUint32](0, 0);
      let start = 4 - byteCount;
      let randomLimit = math.pow(256, byteCount)[$toInt]();
      while (true) {
        this[_getRandomBytes](start, byteCount);
        let random = this[_buffer$0][$getUint32](0);
        if ((max & max - 1) === 0) {
          return (dart.notNull(random) & max - 1) >>> 0;
        }
        let result = random[$remainder](max)[$toInt]();
        if (dart.notNull(random) - result + max < randomLimit) {
          return result;
        }
      }
    }
  };
  (math._JSSecureRandom.new = function() {
    this[_buffer$0] = _native_typed_data.NativeByteData.new(8);
    let crypto = self.crypto;
    if (crypto != null) {
      let getRandomValues = crypto.getRandomValues;
      if (getRandomValues != null) {
        return;
      }
    }
    dart.throw(new core.UnsupportedError.new("No source of cryptographically secure random numbers available."));
  }).prototype = math._JSSecureRandom.prototype;
  dart.addRtiResources(math._JSSecureRandom, ["math|_JSSecureRandom", "math|Random"]);
  dart.setMethodSignature(math._JSSecureRandom, () => dart.global.Object.setPrototypeOf({
    [_getRandomBytes]: T$.intAndintTovoid(),
    nextBool: T$.VoidTobool(),
    nextDouble: T$.VoidTodouble(),
    nextInt: T$.intToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(math._JSSecureRandom))));
  dart.setLibraryUri(math._JSSecureRandom, I[159]);
  dart.setFieldSignature(math._JSSecureRandom, () => dart.global.Object.setPrototypeOf({[_buffer$0]: {type: T$0.ByteData(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(math._JSSecureRandom))));
  var x$2 = dart.privateName(math, "Point.x");
  var y$2 = dart.privateName(math, "Point.y");
  math.Point$ = dart.generic(T => {
    var __t$PointOfT = () => (__t$PointOfT = dart.constFn(T[_eval]("math|Point<0>")))();
    var __t$ObjectNToPointOfT = () => (__t$ObjectNToPointOfT = dart.constFn(T[_eval]("math|Point<0>(core|Object?)")))();
    var __t$numToPointOfT = () => (__t$numToPointOfT = dart.constFn(T[_eval]("math|Point<0>(core|num)")))();
    var __t$ObjectNToT = () => (__t$ObjectNToT = dart.constFn(T[_eval]("0(core|Object?)")))();
    var __t$PointOfT$ = () => (__t$PointOfT$ = dart.constFn(math.Point$(T)))();
    class Point extends core.Object {
      get x() {
        return this[x$2];
      }
      set x(value) {
        super.x = value;
      }
      get y() {
        return this[y$2];
      }
      set y(value) {
        super.y = value;
      }
      static ['_#new#tearOff'](T, x, y) {
        if (x == null) dart.nullFailed(I[160], 43, 17, "x");
        if (y == null) dart.nullFailed(I[160], 43, 22, "y");
        return new (math.Point$(T)).new(x, y);
      }
      toString() {
        return "Point(" + dart.str(this.x) + ", " + dart.str(this.y) + ")";
      }
      _equals(other) {
        if (other == null) return false;
        return T$3.PointOfnum()[_is](other) && this.x == other.x && this.y == other.y;
      }
      get hashCode() {
        return _internal.SystemHash.hash2(dart.hashCode(this.x), dart.hashCode(this.y), 0);
      }
      ['+'](other) {
        __t$PointOfT()[_as](other);
        if (other == null) dart.nullFailed(I[160], 74, 32, "other");
        return new (__t$PointOfT$()).new(T[_as](dart.notNull(this.x) + dart.notNull(other.x)), T[_as](dart.notNull(this.y) + dart.notNull(other.y)));
      }
      ['-'](other) {
        __t$PointOfT()[_as](other);
        if (other == null) dart.nullFailed(I[160], 87, 32, "other");
        return new (__t$PointOfT$()).new(T[_as](dart.notNull(this.x) - dart.notNull(other.x)), T[_as](dart.notNull(this.y) - dart.notNull(other.y)));
      }
      ['*'](factor) {
        if (factor == null) dart.nullFailed(I[160], 109, 37, "factor");
        return new (__t$PointOfT$()).new(T[_as](dart.notNull(this.x) * dart.notNull(factor)), T[_as](dart.notNull(this.y) * dart.notNull(factor)));
      }
      get magnitude() {
        return math.sqrt(dart.notNull(this.x) * dart.notNull(this.x) + dart.notNull(this.y) * dart.notNull(this.y));
      }
      distanceTo(other) {
        __t$PointOfT()[_as](other);
        if (other == null) dart.nullFailed(I[160], 132, 30, "other");
        let dx = dart.notNull(this.x) - dart.notNull(other.x);
        let dy = dart.notNull(this.y) - dart.notNull(other.y);
        return math.sqrt(dx * dx + dy * dy);
      }
      squaredDistanceTo(other) {
        __t$PointOfT()[_as](other);
        if (other == null) dart.nullFailed(I[160], 154, 32, "other");
        let dx = dart.notNull(this.x) - dart.notNull(other.x);
        let dy = dart.notNull(this.y) - dart.notNull(other.y);
        return T[_as](dx * dx + dy * dy);
      }
    }
    (Point.new = function(x, y) {
      if (x == null) dart.nullFailed(I[160], 43, 17, "x");
      if (y == null) dart.nullFailed(I[160], 43, 22, "y");
      this[x$2] = x;
      this[y$2] = y;
      this.$ti = this.$ti || __t$PointOfT();
      ;
    }).prototype = Point.prototype;
    dart.addRtiResources(Point, ["math|Point"]);
    dart.setMethodSignature(Point, () => dart.global.Object.setPrototypeOf({
      '+': __t$ObjectNToPointOfT(),
      '-': __t$ObjectNToPointOfT(),
      '*': __t$numToPointOfT(),
      distanceTo: T$.ObjectNTodouble(),
      squaredDistanceTo: __t$ObjectNToT()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(Point))));
    dart.setGetterSignature(Point, () => dart.global.Object.setPrototypeOf({magnitude: T$.double()}, dart.getGetters(dart.global.Object.getPrototypeOf(Point))));
    dart.setLibraryUri(Point, I[159]);
    dart.setFieldSignature(Point, () => dart.global.Object.setPrototypeOf({
      x: {type: T, isConst: false, isFinal: true},
      y: {type: T, isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(Point))));
    dart.defineExtensionMethods(Point, ['toString', '_equals']);
    dart.defineExtensionAccessors(Point, ['hashCode']);
    return Point;
  });
  math.Point = math.Point$();
  math.Random = class Random extends core.Object {
    static new(seed = null) {
      return seed == null ? C[263] || CT.C263 : new math._Random.new(seed);
    }
    static ['_#new#tearOff'](seed = null) {
      return math.Random.new(seed);
    }
    static secure() {
      return math.Random._secureRandom;
    }
    static ['_#secure#tearOff']() {
      return math.Random.secure();
    }
  };
  (math.Random[dart.mixinNew] = function() {
  }).prototype = math.Random.prototype;
  dart.addRtiResources(math.Random, ["math|Random"]);
  dart.setStaticMethodSignature(math.Random, () => ['new', 'secure']);
  dart.setLibraryUri(math.Random, I[159]);
  dart.setStaticFieldSignature(math.Random, () => ['_secureRandom']);
  dart.defineLazy(math.Random, {
    /*math.Random._secureRandom*/get _secureRandom() {
      return new math._JSSecureRandom.new();
    }
  }, false);
  math._RectangleBase$ = dart.generic(T => {
    var __t$_RectangleBaseOfT = () => (__t$_RectangleBaseOfT = dart.constFn(T[_eval]("math|_RectangleBase<0>")))();
    var __t$RectangleOfT = () => (__t$RectangleOfT = dart.constFn(T[_eval]("math|Rectangle<0>")))();
    var __t$ObjectNToRectangleNOfT = () => (__t$ObjectNToRectangleNOfT = dart.constFn(T[_eval]("math|Rectangle<0>?(core|Object?)")))();
    var __t$ObjectNToRectangleOfT = () => (__t$ObjectNToRectangleOfT = dart.constFn(T[_eval]("math|Rectangle<0>(core|Object?)")))();
    var __t$PointOfT = () => (__t$PointOfT = dart.constFn(T[_eval]("math|Point<0>")))();
    var __t$RectangleOfT$ = () => (__t$RectangleOfT$ = dart.constFn(math.Rectangle$(T)))();
    var __t$PointOfT$ = () => (__t$PointOfT$ = dart.constFn(math.Point$(T)))();
    class _RectangleBase extends core.Object {
      get right() {
        return T[_as](dart.notNull(this[$left]) + dart.notNull(this[$width]));
      }
      get bottom() {
        return T[_as](dart.notNull(this[$top]) + dart.notNull(this[$height]));
      }
      toString() {
        return "Rectangle (" + dart.str(this[$left]) + ", " + dart.str(this[$top]) + ") " + dart.str(this[$width]) + " x " + dart.str(this[$height]);
      }
      _equals(other) {
        if (other == null) return false;
        return T$3.RectangleOfnum()[_is](other) && this[$left] == other[$left] && this[$top] == other[$top] && this[$right] == other[$right] && this[$bottom] == other[$bottom];
      }
      get hashCode() {
        return _internal.SystemHash.hash4(dart.hashCode(this[$left]), dart.hashCode(this[$top]), dart.hashCode(this[$right]), dart.hashCode(this[$bottom]), 0);
      }
      intersection(other) {
        __t$RectangleOfT()[_as](other);
        if (other == null) dart.nullFailed(I[161], 64, 43, "other");
        let x0 = math.max(T, this[$left], other[$left]);
        let x1 = math.min(T$.num(), dart.notNull(this[$left]) + dart.notNull(this[$width]), dart.notNull(other[$left]) + dart.notNull(other[$width]));
        if (x0 <= x1) {
          let y0 = math.max(T, this[$top], other[$top]);
          let y1 = math.min(T$.num(), dart.notNull(this[$top]) + dart.notNull(this[$height]), dart.notNull(other[$top]) + dart.notNull(other[$height]));
          if (y0 <= y1) {
            return new (__t$RectangleOfT$()).new(x0, y0, T[_as](x1 - x0), T[_as](y1 - y0));
          }
        }
        return null;
      }
      intersects(other) {
        if (other == null) dart.nullFailed(I[161], 80, 34, "other");
        return dart.notNull(this[$left]) <= dart.notNull(other[$left]) + dart.notNull(other[$width]) && dart.notNull(other[$left]) <= dart.notNull(this[$left]) + dart.notNull(this[$width]) && dart.notNull(this[$top]) <= dart.notNull(other[$top]) + dart.notNull(other[$height]) && dart.notNull(other[$top]) <= dart.notNull(this[$top]) + dart.notNull(this[$height]);
      }
      boundingBox(other) {
        __t$RectangleOfT()[_as](other);
        if (other == null) dart.nullFailed(I[161], 88, 41, "other");
        let right = math.max(T$.num(), dart.notNull(this[$left]) + dart.notNull(this[$width]), dart.notNull(other[$left]) + dart.notNull(other[$width]));
        let bottom = math.max(T$.num(), dart.notNull(this[$top]) + dart.notNull(this[$height]), dart.notNull(other[$top]) + dart.notNull(other[$height]));
        let left = math.min(T, this[$left], other[$left]);
        let top = math.min(T, this[$top], other[$top]);
        return new (__t$RectangleOfT$()).new(left, top, T[_as](right - left), T[_as](bottom - top));
      }
      containsRectangle(another) {
        if (another == null) dart.nullFailed(I[161], 99, 41, "another");
        return dart.notNull(this[$left]) <= dart.notNull(another[$left]) && dart.notNull(this[$left]) + dart.notNull(this[$width]) >= dart.notNull(another[$left]) + dart.notNull(another[$width]) && dart.notNull(this[$top]) <= dart.notNull(another[$top]) && dart.notNull(this[$top]) + dart.notNull(this[$height]) >= dart.notNull(another[$top]) + dart.notNull(another[$height]);
      }
      containsPoint(another) {
        if (another == null) dart.nullFailed(I[161], 107, 33, "another");
        return dart.notNull(another.x) >= dart.notNull(this[$left]) && dart.notNull(another.x) <= dart.notNull(this[$left]) + dart.notNull(this[$width]) && dart.notNull(another.y) >= dart.notNull(this[$top]) && dart.notNull(another.y) <= dart.notNull(this[$top]) + dart.notNull(this[$height]);
      }
      get topLeft() {
        return new (__t$PointOfT$()).new(this[$left], this[$top]);
      }
      get topRight() {
        return new (__t$PointOfT$()).new(T[_as](dart.notNull(this[$left]) + dart.notNull(this[$width])), this[$top]);
      }
      get bottomRight() {
        return new (__t$PointOfT$()).new(T[_as](dart.notNull(this[$left]) + dart.notNull(this[$width])), T[_as](dart.notNull(this[$top]) + dart.notNull(this[$height])));
      }
      get bottomLeft() {
        return new (__t$PointOfT$()).new(this[$left], T[_as](dart.notNull(this[$top]) + dart.notNull(this[$height])));
      }
    }
    (_RectangleBase.new = function() {
      this.$ti = this.$ti || __t$_RectangleBaseOfT();
      ;
    }).prototype = _RectangleBase.prototype;
    dart.addRtiResources(_RectangleBase, ["math|_RectangleBase"]);
    dart.setMethodSignature(_RectangleBase, () => dart.global.Object.setPrototypeOf({
      intersection: __t$ObjectNToRectangleNOfT(),
      [$intersection]: __t$ObjectNToRectangleNOfT(),
      intersects: T$3.RectangleOfnumTobool(),
      [$intersects]: T$3.RectangleOfnumTobool(),
      boundingBox: __t$ObjectNToRectangleOfT(),
      [$boundingBox]: __t$ObjectNToRectangleOfT(),
      containsRectangle: T$3.RectangleOfnumTobool(),
      [$containsRectangle]: T$3.RectangleOfnumTobool(),
      containsPoint: T$3.PointOfnumTobool(),
      [$containsPoint]: T$3.PointOfnumTobool()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_RectangleBase))));
    dart.setGetterSignature(_RectangleBase, () => dart.global.Object.setPrototypeOf({
      right: T,
      [$right]: T,
      bottom: T,
      [$bottom]: T,
      topLeft: __t$PointOfT(),
      [$topLeft]: __t$PointOfT(),
      topRight: __t$PointOfT(),
      [$topRight]: __t$PointOfT(),
      bottomRight: __t$PointOfT(),
      [$bottomRight]: __t$PointOfT(),
      bottomLeft: __t$PointOfT(),
      [$bottomLeft]: __t$PointOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_RectangleBase))));
    dart.setLibraryUri(_RectangleBase, I[159]);
    dart.defineExtensionMethods(_RectangleBase, [
      'toString',
      '_equals',
      'intersection',
      'intersects',
      'boundingBox',
      'containsRectangle',
      'containsPoint'
    ]);
    dart.defineExtensionAccessors(_RectangleBase, [
      'right',
      'bottom',
      'hashCode',
      'topLeft',
      'topRight',
      'bottomRight',
      'bottomLeft'
    ]);
    return _RectangleBase;
  });
  math._RectangleBase = math._RectangleBase$();
  var left$ = dart.privateName(math, "Rectangle.left");
  var top$ = dart.privateName(math, "Rectangle.top");
  var width$ = dart.privateName(math, "Rectangle.width");
  var height$ = dart.privateName(math, "Rectangle.height");
  math.Rectangle$ = dart.generic(T => {
    var __t$RectangleOfT = () => (__t$RectangleOfT = dart.constFn(T[_eval]("math|Rectangle<0>")))();
    var __t$_RectangleBaseOfT = () => (__t$_RectangleBaseOfT = dart.constFn(math._RectangleBase$(T)))();
    class Rectangle extends __t$_RectangleBaseOfT() {
      get left() {
        return this[left$];
      }
      set left(value) {
        super.left = value;
      }
      get top() {
        return this[top$];
      }
      set top(value) {
        super.top = value;
      }
      get width() {
        return this[width$];
      }
      set width(value) {
        super.width = value;
      }
      get height() {
        return this[height$];
      }
      set height(value) {
        super.height = value;
      }
      static ['_#new#tearOff'](T, left, top, width, height) {
        if (left == null) dart.nullFailed(I[161], 174, 24, "left");
        if (top == null) dart.nullFailed(I[161], 174, 35, "top");
        if (width == null) dart.nullFailed(I[161], 174, 42, "width");
        if (height == null) dart.nullFailed(I[161], 174, 51, "height");
        return new (math.Rectangle$(T)).new(left, top, width, height);
      }
      static fromPoints(a, b) {
        if (a == null) dart.nullFailed(I[161], 206, 41, "a");
        if (b == null) dart.nullFailed(I[161], 206, 53, "b");
        let left = math.min(T, a.x, b.x);
        let width = T[_as](math.max(T, a.x, b.x) - left);
        let top = math.min(T, a.y, b.y);
        let height = T[_as](math.max(T, a.y, b.y) - top);
        return new (math.Rectangle$(T)).new(left, top, width, height);
      }
      static ['_#fromPoints#tearOff'](T, a, b) {
        if (a == null) dart.nullFailed(I[161], 206, 41, "a");
        if (b == null) dart.nullFailed(I[161], 206, 53, "b");
        return math.Rectangle$(T).fromPoints(a, b);
      }
    }
    (Rectangle.new = function(left, top, width, height) {
      if (left == null) dart.nullFailed(I[161], 174, 24, "left");
      if (top == null) dart.nullFailed(I[161], 174, 35, "top");
      if (width == null) dart.nullFailed(I[161], 174, 42, "width");
      if (height == null) dart.nullFailed(I[161], 174, 51, "height");
      this[left$] = left;
      this[top$] = top;
      this[width$] = T[_as](dart.notNull(width) < 0 ? width === -1 / 0 ? 0.0 : -dart.notNull(width) * 0 : dart.notNull(width) + 0);
      this[height$] = T[_as](dart.notNull(height) < 0 ? height === -1 / 0 ? 0.0 : -dart.notNull(height) * 0 : dart.notNull(height) + 0);
      this.$ti = this.$ti || __t$RectangleOfT();
      dart.global.Object.getPrototypeOf(Rectangle).new.call(this);
      ;
    }).prototype = Rectangle.prototype;
    dart.addRtiResources(Rectangle, ["math|Rectangle"]);
    dart.setStaticMethodSignature(Rectangle, () => ['fromPoints']);
    dart.setLibraryUri(Rectangle, I[159]);
    dart.setFieldSignature(Rectangle, () => dart.global.Object.setPrototypeOf({
      left: {type: T, isConst: false, isFinal: true},
      top: {type: T, isConst: false, isFinal: true},
      width: {type: T, isConst: false, isFinal: true},
      height: {type: T, isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(Rectangle))));
    dart.defineExtensionAccessors(Rectangle, ['left', 'top', 'width', 'height']);
    return Rectangle;
  });
  math.Rectangle = math.Rectangle$();
  var left$0 = dart.privateName(math, "MutableRectangle.left");
  var top$0 = dart.privateName(math, "MutableRectangle.top");
  var _width = dart.privateName(math, "_width");
  var _height = dart.privateName(math, "_height");
  math.MutableRectangle$ = dart.generic(T => {
    var __t$MutableRectangleOfT = () => (__t$MutableRectangleOfT = dart.constFn(T[_eval]("math|MutableRectangle<0>")))();
    var __t$_RectangleBaseOfT = () => (__t$_RectangleBaseOfT = dart.constFn(math._RectangleBase$(T)))();
    class MutableRectangle extends __t$_RectangleBaseOfT() {
      get left() {
        return this[left$0];
      }
      set left(value) {
        if (value == null) dart.nullFailed(I[161], 243, 5, "left");
        this[left$0] = T[_as](value);
      }
      get top() {
        return this[top$0];
      }
      set top(value) {
        if (value == null) dart.nullFailed(I[161], 248, 5, "top");
        this[top$0] = T[_as](value);
      }
      static ['_#new#tearOff'](T, left, top, width, height) {
        if (left == null) dart.nullFailed(I[161], 287, 25, "left");
        if (top == null) dart.nullFailed(I[161], 287, 36, "top");
        if (width == null) dart.nullFailed(I[161], 287, 43, "width");
        if (height == null) dart.nullFailed(I[161], 287, 52, "height");
        return new (math.MutableRectangle$(T)).new(left, top, width, height);
      }
      static fromPoints(a, b) {
        if (a == null) dart.nullFailed(I[161], 315, 48, "a");
        if (b == null) dart.nullFailed(I[161], 315, 60, "b");
        let left = math.min(T, a.x, b.x);
        let width = T[_as](math.max(T, a.x, b.x) - left);
        let top = math.min(T, a.y, b.y);
        let height = T[_as](math.max(T, a.y, b.y) - top);
        return new (math.MutableRectangle$(T)).new(left, top, width, height);
      }
      static ['_#fromPoints#tearOff'](T, a, b) {
        if (a == null) dart.nullFailed(I[161], 315, 48, "a");
        if (b == null) dart.nullFailed(I[161], 315, 60, "b");
        return math.MutableRectangle$(T).fromPoints(a, b);
      }
      get width() {
        return this[_width];
      }
      set width(width) {
        T[_as](width);
        if (width == null) dart.nullFailed(I[161], 332, 15, "width");
        if (dart.notNull(width) < 0) width = math._clampToZero(T, width);
        this[_width] = width;
      }
      get height() {
        return this[_height];
      }
      set height(height) {
        T[_as](height);
        if (height == null) dart.nullFailed(I[161], 346, 16, "height");
        if (dart.notNull(height) < 0) height = math._clampToZero(T, height);
        this[_height] = height;
      }
    }
    (MutableRectangle.new = function(left, top, width, height) {
      if (left == null) dart.nullFailed(I[161], 287, 25, "left");
      if (top == null) dart.nullFailed(I[161], 287, 36, "top");
      if (width == null) dart.nullFailed(I[161], 287, 43, "width");
      if (height == null) dart.nullFailed(I[161], 287, 52, "height");
      this[left$0] = left;
      this[top$0] = top;
      this[_width] = T[_as](dart.notNull(width) < 0 ? math._clampToZero(T, width) : dart.notNull(width) + 0);
      this[_height] = T[_as](dart.notNull(height) < 0 ? math._clampToZero(T, height) : dart.notNull(height) + 0);
      this.$ti = this.$ti || __t$MutableRectangleOfT();
      dart.global.Object.getPrototypeOf(MutableRectangle).new.call(this);
      ;
    }).prototype = MutableRectangle.prototype;
    dart.addRtiResources(MutableRectangle, ["math|MutableRectangle", "math|Rectangle", "math|_RectangleBase"]);
    dart.setStaticMethodSignature(MutableRectangle, () => ['fromPoints']);
    dart.setGetterSignature(MutableRectangle, () => dart.global.Object.setPrototypeOf({
      width: T,
      [$width]: T,
      height: T,
      [$height]: T
    }, dart.getGetters(dart.global.Object.getPrototypeOf(MutableRectangle))));
    dart.setSetterSignature(MutableRectangle, () => dart.global.Object.setPrototypeOf({
      width: T$.ObjectN(),
      [$width]: T$.ObjectN(),
      height: T$.ObjectN(),
      [$height]: T$.ObjectN()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(MutableRectangle))));
    dart.setLibraryUri(MutableRectangle, I[159]);
    dart.setFieldSignature(MutableRectangle, () => dart.global.Object.setPrototypeOf({
      left: {type: T, isConst: false, isFinal: false},
      top: {type: T, isConst: false, isFinal: false},
      [_width]: {type: T, isConst: false, isFinal: false},
      [_height]: {type: T, isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(MutableRectangle))));
    dart.defineExtensionAccessors(MutableRectangle, ['left', 'top', 'width', 'height']);
    return MutableRectangle;
  });
  math.MutableRectangle = math.MutableRectangle$();
  math.min = function min(T, a, b) {
    if (a == null) dart.argumentError(a);
    if (b == null) dart.argumentError(b);
    return Math.min(a, b);
  };
  math.max = function max(T, a, b) {
    if (a == null) dart.argumentError(a);
    if (b == null) dart.argumentError(b);
    return Math.max(a, b);
  };
  math.atan2 = function atan2(a, b) {
    if (a == null) dart.argumentError(a);
    if (b == null) dart.argumentError(b);
    return Math.atan2(a, b);
  };
  math.pow = function pow(x, exponent) {
    if (x == null) dart.argumentError(x);
    if (exponent == null) dart.argumentError(exponent);
    return Math.pow(x, exponent);
  };
  math.sin = function sin(radians) {
    if (radians == null) dart.argumentError(radians);
    return Math.sin(radians);
  };
  math.cos = function cos(radians) {
    if (radians == null) dart.argumentError(radians);
    return Math.cos(radians);
  };
  math.tan = function tan(radians) {
    if (radians == null) dart.argumentError(radians);
    return Math.tan(radians);
  };
  math.acos = function acos(x) {
    if (x == null) dart.argumentError(x);
    return Math.acos(x);
  };
  math.asin = function asin(x) {
    if (x == null) dart.argumentError(x);
    return Math.asin(x);
  };
  math.atan = function atan(x) {
    if (x == null) dart.argumentError(x);
    return Math.atan(x);
  };
  math.sqrt = function sqrt(x) {
    if (x == null) dart.argumentError(x);
    return Math.sqrt(x);
  };
  math.exp = function exp(x) {
    if (x == null) dart.argumentError(x);
    return Math.exp(x);
  };
  math.log = function log$(x) {
    if (x == null) dart.argumentError(x);
    return Math.log(x);
  };
  math._clampToZero = function _clampToZero(T, value) {
    if (value == null) dart.nullFailed(I[161], 355, 33, "value");
    if (!(dart.notNull(value) < 0)) dart.assertFailed(null, I[161], 356, 10, "value < 0");
    if (value === -1 / 0) return T[_as](0.0);
    return T[_as](-dart.notNull(value) * 0);
  };
  dart.defineLazy(math, {
    /*math._POW2_32*/get _POW2_32() {
      return 4294967296.0;
    },
    /*math.e*/get e() {
      return 2.718281828459045;
    },
    /*math.ln10*/get ln10() {
      return 2.302585092994046;
    },
    /*math.ln2*/get ln2() {
      return 0.6931471805599453;
    },
    /*math.log2e*/get log2e() {
      return 1.4426950408889634;
    },
    /*math.log10e*/get log10e() {
      return 0.4342944819032518;
    },
    /*math.pi*/get pi() {
      return 3.141592653589793;
    },
    /*math.sqrt1_2*/get sqrt1_2() {
      return 0.7071067811865476;
    },
    /*math.sqrt2*/get sqrt2() {
      return 1.4142135623730951;
    }
  }, false);
  typed_data.ByteBuffer = class ByteBuffer extends core.Object {};
  (typed_data.ByteBuffer.new = function() {
    ;
  }).prototype = typed_data.ByteBuffer.prototype;
  dart.addRtiResources(typed_data.ByteBuffer, ["typed_data|ByteBuffer"]);
  dart.setLibraryUri(typed_data.ByteBuffer, I[43]);
  typed_data.TypedData = class TypedData extends core.Object {};
  (typed_data.TypedData.new = function() {
    ;
  }).prototype = typed_data.TypedData.prototype;
  dart.addRtiResources(typed_data.TypedData, ["typed_data|TypedData"]);
  dart.setLibraryUri(typed_data.TypedData, I[43]);
  typed_data.TypedDataList$ = dart.generic(E => {
    var __t$TypedDataListOfE = () => (__t$TypedDataListOfE = dart.constFn(E[_eval]("typed_data|TypedDataList<0>")))();
    class TypedDataList extends core.Object {
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (TypedDataList.new = function() {
      this.$ti = this.$ti || __t$TypedDataListOfE();
      ;
    }).prototype = TypedDataList.prototype;
    dart.addRtiResources(TypedDataList, ["typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setLibraryUri(TypedDataList, I[43]);
    return TypedDataList;
  });
  typed_data.TypedDataList = typed_data.TypedDataList$();
  typed_data._TypedIntList = class _TypedIntList extends core.Object {
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data._TypedIntList.new = function() {
    ;
  }).prototype = typed_data._TypedIntList.prototype;
  dart.addRtiResources(typed_data._TypedIntList, ["typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setLibraryUri(typed_data._TypedIntList, I[43]);
  typed_data._TypedFloatList = class _TypedFloatList extends core.Object {
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data._TypedFloatList.new = function() {
    ;
  }).prototype = typed_data._TypedFloatList.prototype;
  dart.addRtiResources(typed_data._TypedFloatList, ["typed_data|_TypedFloatList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setLibraryUri(typed_data._TypedFloatList, I[43]);
  var _littleEndian = dart.privateName(typed_data, "_littleEndian");
  const _littleEndian$ = Endian__littleEndian;
  typed_data.Endian = class Endian extends core.Object {
    get [_littleEndian]() {
      return this[_littleEndian$];
    }
    set [_littleEndian](value) {
      super[_littleEndian] = value;
    }
    static ['_#_#tearOff'](_littleEndian) {
      if (_littleEndian == null) dart.nullFailed(I[162], 404, 23, "_littleEndian");
      return new typed_data.Endian.__(_littleEndian);
    }
  };
  (typed_data.Endian.__ = function(_littleEndian) {
    if (_littleEndian == null) dart.nullFailed(I[162], 404, 23, "_littleEndian");
    this[_littleEndian$] = _littleEndian;
    ;
  }).prototype = typed_data.Endian.prototype;
  dart.addRtiResources(typed_data.Endian, ["typed_data|Endian"]);
  dart.setLibraryUri(typed_data.Endian, I[43]);
  dart.setFieldSignature(typed_data.Endian, () => dart.global.Object.setPrototypeOf({[_littleEndian]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(typed_data.Endian))));
  dart.setStaticFieldSignature(typed_data.Endian, () => ['big', 'little', 'host']);
  dart.defineLazy(typed_data.Endian, {
    /*typed_data.Endian.big*/get big() {
      return C[75] || CT.C75;
    },
    /*typed_data.Endian.little*/get little() {
      return C[264] || CT.C264;
    },
    /*typed_data.Endian.host*/get host() {
      return typed_data.ByteData.view(_native_typed_data.NativeUint16List.fromList(G.JSArrayOfint().of([1]))[$buffer])[$getInt8](0) === 1 ? typed_data.Endian.little : typed_data.Endian.big;
    }
  }, false);
  typed_data.ByteData = class ByteData extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 11, 24, "length");
      return _native_typed_data.NativeByteData.new(length);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 483, 36, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 484, 12, "offsetInBytes");
      return buffer[$asByteData](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 483, 36, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 484, 12, "offsetInBytes");
      return typed_data.ByteData.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 505, 42, "data");
      if (start == null) dart.nullFailed(I[162], 505, 53, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      return data[$buffer][$asByteData](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize));
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 505, 42, "data");
      if (start == null) dart.nullFailed(I[162], 505, 53, "start");
      return typed_data.ByteData.sublistView(data, start, end);
    }
  };
  (typed_data.ByteData[dart.mixinNew] = function() {
  }).prototype = typed_data.ByteData.prototype;
  dart.addRtiResources(typed_data.ByteData, ["typed_data|ByteData", "typed_data|TypedData"]);
  dart.setStaticMethodSignature(typed_data.ByteData, () => ['new', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.ByteData, I[43]);
  typed_data.Int8List = class Int8List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 55, 24, "length");
      return _native_typed_data.NativeInt8List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 58, 39, "elements");
      return _native_typed_data.NativeInt8List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 784, 36, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 785, 12, "offsetInBytes");
      return buffer[$asInt8List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 784, 36, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 785, 12, "offsetInBytes");
      return typed_data.Int8List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 806, 42, "data");
      if (start == null) dart.nullFailed(I[162], 806, 53, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      return data[$buffer][$asInt8List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize));
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 806, 42, "data");
      if (start == null) dart.nullFailed(I[162], 806, 53, "start");
      return typed_data.Int8List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Int8List[dart.mixinNew] = function() {
  }).prototype = typed_data.Int8List.prototype;
  dart.addRtiResources(typed_data.Int8List, ["typed_data|Int8List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Int8List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Int8List, I[43]);
  dart.setStaticFieldSignature(typed_data.Int8List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Int8List, {
    /*typed_data.Int8List.bytesPerElement*/get bytesPerElement() {
      return 1;
    }
  }, false);
  typed_data.Uint8List = class Uint8List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 92, 25, "length");
      return _native_typed_data.NativeUint8List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 95, 40, "elements");
      return _native_typed_data.NativeUint8List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 901, 37, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 902, 12, "offsetInBytes");
      return buffer[$asUint8List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 901, 37, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 902, 12, "offsetInBytes");
      return typed_data.Uint8List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 923, 43, "data");
      if (start == null) dart.nullFailed(I[162], 923, 54, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      return data[$buffer][$asUint8List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize));
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 923, 43, "data");
      if (start == null) dart.nullFailed(I[162], 923, 54, "start");
      return typed_data.Uint8List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Uint8List[dart.mixinNew] = function() {
  }).prototype = typed_data.Uint8List.prototype;
  dart.addRtiResources(typed_data.Uint8List, ["typed_data|Uint8List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Uint8List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Uint8List, I[43]);
  dart.setStaticFieldSignature(typed_data.Uint8List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Uint8List, {
    /*typed_data.Uint8List.bytesPerElement*/get bytesPerElement() {
      return 1;
    }
  }, false);
  typed_data.Uint8ClampedList = class Uint8ClampedList extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 82, 32, "length");
      return _native_typed_data.NativeUint8ClampedList.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 85, 47, "elements");
      return _native_typed_data.NativeUint8ClampedList.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1026, 44, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1027, 12, "offsetInBytes");
      return buffer[$asUint8ClampedList](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1026, 44, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1027, 12, "offsetInBytes");
      return typed_data.Uint8ClampedList.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1048, 50, "data");
      if (start == null) dart.nullFailed(I[162], 1049, 12, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      return data[$buffer][$asUint8ClampedList](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize));
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1048, 50, "data");
      if (start == null) dart.nullFailed(I[162], 1049, 12, "start");
      return typed_data.Uint8ClampedList.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Uint8ClampedList[dart.mixinNew] = function() {
  }).prototype = typed_data.Uint8ClampedList.prototype;
  dart.addRtiResources(typed_data.Uint8ClampedList, ["typed_data|Uint8ClampedList", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Uint8ClampedList, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Uint8ClampedList, I[43]);
  dart.setStaticFieldSignature(typed_data.Uint8ClampedList, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Uint8ClampedList, {
    /*typed_data.Uint8ClampedList.bytesPerElement*/get bytesPerElement() {
      return 1;
    }
  }, false);
  typed_data.Int16List = class Int16List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 37, 25, "length");
      return _native_typed_data.NativeInt16List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 40, 40, "elements");
      return _native_typed_data.NativeInt16List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1148, 37, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1149, 12, "offsetInBytes");
      return buffer[$asInt16List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1148, 37, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1149, 12, "offsetInBytes");
      return typed_data.Int16List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1173, 43, "data");
      if (start == null) dart.nullFailed(I[162], 1173, 54, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](2) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "2"));
      }
      return data[$buffer][$asInt16List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 2)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1173, 43, "data");
      if (start == null) dart.nullFailed(I[162], 1173, 54, "start");
      return typed_data.Int16List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Int16List[dart.mixinNew] = function() {
  }).prototype = typed_data.Int16List.prototype;
  dart.addRtiResources(typed_data.Int16List, ["typed_data|Int16List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Int16List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Int16List, I[43]);
  dart.setStaticFieldSignature(typed_data.Int16List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Int16List, {
    /*typed_data.Int16List.bytesPerElement*/get bytesPerElement() {
      return 2;
    }
  }, false);
  typed_data.Uint16List = class Uint16List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 73, 26, "length");
      return _native_typed_data.NativeUint16List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 76, 41, "elements");
      return _native_typed_data.NativeUint16List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1278, 38, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1279, 12, "offsetInBytes");
      return buffer[$asUint16List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1278, 38, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1279, 12, "offsetInBytes");
      return typed_data.Uint16List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1303, 44, "data");
      if (start == null) dart.nullFailed(I[162], 1303, 55, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](2) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "2"));
      }
      return data[$buffer][$asUint16List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 2)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1303, 44, "data");
      if (start == null) dart.nullFailed(I[162], 1303, 55, "start");
      return typed_data.Uint16List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Uint16List[dart.mixinNew] = function() {
  }).prototype = typed_data.Uint16List.prototype;
  dart.addRtiResources(typed_data.Uint16List, ["typed_data|Uint16List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Uint16List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Uint16List, I[43]);
  dart.setStaticFieldSignature(typed_data.Uint16List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Uint16List, {
    /*typed_data.Uint16List.bytesPerElement*/get bytesPerElement() {
      return 2;
    }
  }, false);
  typed_data.Int32List = class Int32List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 46, 25, "length");
      return _native_typed_data.NativeInt32List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 49, 40, "elements");
      return _native_typed_data.NativeInt32List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1407, 37, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1408, 12, "offsetInBytes");
      return buffer[$asInt32List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1407, 37, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1408, 12, "offsetInBytes");
      return typed_data.Int32List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1432, 43, "data");
      if (start == null) dart.nullFailed(I[162], 1432, 54, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](4) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "4"));
      }
      return data[$buffer][$asInt32List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 4)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1432, 43, "data");
      if (start == null) dart.nullFailed(I[162], 1432, 54, "start");
      return typed_data.Int32List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Int32List[dart.mixinNew] = function() {
  }).prototype = typed_data.Int32List.prototype;
  dart.addRtiResources(typed_data.Int32List, ["typed_data|Int32List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Int32List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Int32List, I[43]);
  dart.setStaticFieldSignature(typed_data.Int32List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Int32List, {
    /*typed_data.Int32List.bytesPerElement*/get bytesPerElement() {
      return 4;
    }
  }, false);
  typed_data.Uint32List = class Uint32List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 64, 26, "length");
      return _native_typed_data.NativeUint32List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 67, 41, "elements");
      return _native_typed_data.NativeUint32List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1537, 38, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1538, 12, "offsetInBytes");
      return buffer[$asUint32List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1537, 38, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1538, 12, "offsetInBytes");
      return typed_data.Uint32List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1562, 44, "data");
      if (start == null) dart.nullFailed(I[162], 1562, 55, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](4) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "4"));
      }
      return data[$buffer][$asUint32List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 4)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1562, 44, "data");
      if (start == null) dart.nullFailed(I[162], 1562, 55, "start");
      return typed_data.Uint32List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Uint32List[dart.mixinNew] = function() {
  }).prototype = typed_data.Uint32List.prototype;
  dart.addRtiResources(typed_data.Uint32List, ["typed_data|Uint32List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Uint32List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Uint32List, I[43]);
  dart.setStaticFieldSignature(typed_data.Uint32List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Uint32List, {
    /*typed_data.Uint32List.bytesPerElement*/get bytesPerElement() {
      return 4;
    }
  }, false);
  typed_data.Int64List = class Int64List extends core.Object {
    static new(length) {
      if (length == null) dart.nullFailed(I[163], 101, 25, "length");
      dart.throw(new core.UnsupportedError.new("Int64List not supported on the web."));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 101, 25, "length");
      return typed_data.Int64List.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[163], 106, 40, "elements");
      dart.throw(new core.UnsupportedError.new("Int64List not supported on the web."));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 106, 40, "elements");
      return typed_data.Int64List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1666, 37, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1667, 12, "offsetInBytes");
      return buffer[$asInt64List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1666, 37, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1667, 12, "offsetInBytes");
      return typed_data.Int64List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1691, 43, "data");
      if (start == null) dart.nullFailed(I[162], 1691, 54, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](8) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "8"));
      }
      return data[$buffer][$asInt64List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 8)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1691, 43, "data");
      if (start == null) dart.nullFailed(I[162], 1691, 54, "start");
      return typed_data.Int64List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Int64List[dart.mixinNew] = function() {
  }).prototype = typed_data.Int64List.prototype;
  dart.addRtiResources(typed_data.Int64List, ["typed_data|Int64List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Int64List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Int64List, I[43]);
  dart.setStaticFieldSignature(typed_data.Int64List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Int64List, {
    /*typed_data.Int64List.bytesPerElement*/get bytesPerElement() {
      return 8;
    }
  }, false);
  typed_data.Uint64List = class Uint64List extends core.Object {
    static new(length) {
      if (length == null) dart.nullFailed(I[163], 114, 26, "length");
      dart.throw(new core.UnsupportedError.new("Uint64List not supported on the web."));
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 114, 26, "length");
      return typed_data.Uint64List.new(length);
    }
    static fromList(elements) {
      if (elements == null) dart.nullFailed(I[163], 119, 41, "elements");
      dart.throw(new core.UnsupportedError.new("Uint64List not supported on the web."));
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 119, 41, "elements");
      return typed_data.Uint64List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1796, 38, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1797, 12, "offsetInBytes");
      return buffer[$asUint64List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1796, 38, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1797, 12, "offsetInBytes");
      return typed_data.Uint64List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1821, 44, "data");
      if (start == null) dart.nullFailed(I[162], 1821, 55, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](8) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "8"));
      }
      return data[$buffer][$asUint64List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 8)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1821, 44, "data");
      if (start == null) dart.nullFailed(I[162], 1821, 55, "start");
      return typed_data.Uint64List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Uint64List[dart.mixinNew] = function() {
  }).prototype = typed_data.Uint64List.prototype;
  dart.addRtiResources(typed_data.Uint64List, ["typed_data|Uint64List", "typed_data|_TypedIntList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Uint64List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Uint64List, I[43]);
  dart.setStaticFieldSignature(typed_data.Uint64List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Uint64List, {
    /*typed_data.Uint64List.bytesPerElement*/get bytesPerElement() {
      return 8;
    }
  }, false);
  typed_data.Float32List = class Float32List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 17, 27, "length");
      return _native_typed_data.NativeFloat32List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 20, 45, "elements");
      return _native_typed_data.NativeFloat32List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1926, 39, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1927, 12, "offsetInBytes");
      return buffer[$asFloat32List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 1926, 39, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 1927, 12, "offsetInBytes");
      return typed_data.Float32List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1951, 45, "data");
      if (start == null) dart.nullFailed(I[162], 1951, 56, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](4) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "4"));
      }
      return data[$buffer][$asFloat32List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 4)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 1951, 45, "data");
      if (start == null) dart.nullFailed(I[162], 1951, 56, "start");
      return typed_data.Float32List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Float32List[dart.mixinNew] = function() {
  }).prototype = typed_data.Float32List.prototype;
  dart.addRtiResources(typed_data.Float32List, ["typed_data|Float32List", "typed_data|_TypedFloatList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Float32List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Float32List, I[43]);
  dart.setStaticFieldSignature(typed_data.Float32List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Float32List, {
    /*typed_data.Float32List.bytesPerElement*/get bytesPerElement() {
      return 4;
    }
  }, false);
  typed_data.Float64List = class Float64List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 27, 27, "length");
      return _native_typed_data.NativeFloat64List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 30, 45, "elements");
      return _native_typed_data.NativeFloat64List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 2049, 39, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 2050, 12, "offsetInBytes");
      return buffer[$asFloat64List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 2049, 39, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 2050, 12, "offsetInBytes");
      return typed_data.Float64List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 2074, 45, "data");
      if (start == null) dart.nullFailed(I[162], 2074, 56, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](8) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "8"));
      }
      return data[$buffer][$asFloat64List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 8)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 2074, 45, "data");
      if (start == null) dart.nullFailed(I[162], 2074, 56, "start");
      return typed_data.Float64List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Float64List[dart.mixinNew] = function() {
  }).prototype = typed_data.Float64List.prototype;
  dart.addRtiResources(typed_data.Float64List, ["typed_data|Float64List", "typed_data|_TypedFloatList", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Float64List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Float64List, I[43]);
  dart.setStaticFieldSignature(typed_data.Float64List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Float64List, {
    /*typed_data.Float64List.bytesPerElement*/get bytesPerElement() {
      return 8;
    }
  }, false);
  typed_data.Float32x4List = class Float32x4List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 137, 29, "length");
      return new _native_typed_data.NativeFloat32x4List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 140, 50, "elements");
      return _native_typed_data.NativeFloat32x4List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 2172, 41, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 2173, 12, "offsetInBytes");
      return buffer[$asFloat32x4List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 2172, 41, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 2173, 12, "offsetInBytes");
      return typed_data.Float32x4List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 2197, 47, "data");
      if (start == null) dart.nullFailed(I[162], 2197, 58, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](16) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "16"));
      }
      return data[$buffer][$asFloat32x4List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 16)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 2197, 47, "data");
      if (start == null) dart.nullFailed(I[162], 2197, 58, "start");
      return typed_data.Float32x4List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Float32x4List[dart.mixinNew] = function() {
  }).prototype = typed_data.Float32x4List.prototype;
  dart.addRtiResources(typed_data.Float32x4List, ["typed_data|Float32x4List", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Float32x4List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Float32x4List, I[43]);
  dart.setStaticFieldSignature(typed_data.Float32x4List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Float32x4List, {
    /*typed_data.Float32x4List.bytesPerElement*/get bytesPerElement() {
      return 16;
    }
  }, false);
  typed_data.Int32x4List = class Int32x4List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 127, 27, "length");
      return new _native_typed_data.NativeInt32x4List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 130, 46, "elements");
      return _native_typed_data.NativeInt32x4List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 2303, 39, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 2304, 12, "offsetInBytes");
      return buffer[$asInt32x4List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 2303, 39, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 2304, 12, "offsetInBytes");
      return typed_data.Int32x4List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 2328, 45, "data");
      if (start == null) dart.nullFailed(I[162], 2328, 56, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](16) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "16"));
      }
      return data[$buffer][$asInt32x4List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 16)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 2328, 45, "data");
      if (start == null) dart.nullFailed(I[162], 2328, 56, "start");
      return typed_data.Int32x4List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Int32x4List[dart.mixinNew] = function() {
  }).prototype = typed_data.Int32x4List.prototype;
  dart.addRtiResources(typed_data.Int32x4List, ["typed_data|Int32x4List", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Int32x4List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Int32x4List, I[43]);
  dart.setStaticFieldSignature(typed_data.Int32x4List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Int32x4List, {
    /*typed_data.Int32x4List.bytesPerElement*/get bytesPerElement() {
      return 16;
    }
  }, false);
  typed_data.Float64x2List = class Float64x2List extends core.Object {
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[163], 147, 29, "length");
      return new _native_typed_data.NativeFloat64x2List.new(length);
    }
    static ['_#fromList#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[163], 150, 50, "elements");
      return _native_typed_data.NativeFloat64x2List.fromList(elements);
    }
    static view(buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 2444, 41, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 2445, 12, "offsetInBytes");
      return buffer[$asFloat64x2List](offsetInBytes, length);
    }
    static ['_#view#tearOff'](buffer, offsetInBytes = 0, length = null) {
      if (buffer == null) dart.nullFailed(I[162], 2444, 41, "buffer");
      if (offsetInBytes == null) dart.nullFailed(I[162], 2445, 12, "offsetInBytes");
      return typed_data.Float64x2List.view(buffer, offsetInBytes, length);
    }
    static sublistView(data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 2469, 47, "data");
      if (start == null) dart.nullFailed(I[162], 2469, 58, "start");
      let elementSize = data[$elementSizeInBytes];
      end = core.RangeError.checkValidRange(start, end, (dart.notNull(data[$lengthInBytes]) / dart.notNull(elementSize))[$truncate]());
      let byteLength = (dart.notNull(end) - dart.notNull(start)) * dart.notNull(elementSize);
      if (byteLength[$modulo](16) !== 0) {
        dart.throw(new core.ArgumentError.new("The number of bytes to view must be a multiple of " + "16"));
      }
      return data[$buffer][$asFloat64x2List](dart.notNull(data[$offsetInBytes]) + dart.notNull(start) * dart.notNull(elementSize), (byteLength / 16)[$truncate]());
    }
    static ['_#sublistView#tearOff'](data, start = 0, end = null) {
      if (data == null) dart.nullFailed(I[162], 2469, 47, "data");
      if (start == null) dart.nullFailed(I[162], 2469, 58, "start");
      return typed_data.Float64x2List.sublistView(data, start, end);
    }
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (typed_data.Float64x2List[dart.mixinNew] = function() {
  }).prototype = typed_data.Float64x2List.prototype;
  dart.addRtiResources(typed_data.Float64x2List, ["typed_data|Float64x2List", "typed_data|TypedDataList", "typed_data|TypedData", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setStaticMethodSignature(typed_data.Float64x2List, () => ['new', 'fromList', 'view', 'sublistView']);
  dart.setLibraryUri(typed_data.Float64x2List, I[43]);
  dart.setStaticFieldSignature(typed_data.Float64x2List, () => ['bytesPerElement']);
  dart.defineLazy(typed_data.Float64x2List, {
    /*typed_data.Float64x2List.bytesPerElement*/get bytesPerElement() {
      return 16;
    }
  }, false);
  typed_data.Float32x4 = class Float32x4 extends core.Object {
    static ['_#new#tearOff'](x, y, z, w) {
      if (x == null) dart.nullFailed(I[163], 157, 28, "x");
      if (y == null) dart.nullFailed(I[163], 157, 38, "y");
      if (z == null) dart.nullFailed(I[163], 157, 48, "z");
      if (w == null) dart.nullFailed(I[163], 157, 58, "w");
      return new _native_typed_data.NativeFloat32x4.new(x, y, z, w);
    }
    static ['_#splat#tearOff'](v) {
      if (v == null) dart.nullFailed(I[163], 159, 34, "v");
      return new _native_typed_data.NativeFloat32x4.splat(v);
    }
    static ['_#zero#tearOff']() {
      return new _native_typed_data.NativeFloat32x4.zero();
    }
    static ['_#fromInt32x4Bits#tearOff'](x) {
      if (x == null) dart.nullFailed(I[163], 163, 45, "x");
      return _native_typed_data.NativeFloat32x4.fromInt32x4Bits(x);
    }
    static ['_#fromFloat64x2#tearOff'](v) {
      if (v == null) dart.nullFailed(I[163], 166, 45, "v");
      return new _native_typed_data.NativeFloat32x4.fromFloat64x2(v);
    }
  };
  (typed_data.Float32x4[dart.mixinNew] = function() {
  }).prototype = typed_data.Float32x4.prototype;
  dart.addRtiResources(typed_data.Float32x4, ["typed_data|Float32x4"]);
  dart.setStaticMethodSignature(typed_data.Float32x4, () => ['new', 'splat', 'zero', 'fromInt32x4Bits', 'fromFloat64x2']);
  dart.setLibraryUri(typed_data.Float32x4, I[43]);
  dart.setStaticFieldSignature(typed_data.Float32x4, () => ['xxxx', 'xxxy', 'xxxz', 'xxxw', 'xxyx', 'xxyy', 'xxyz', 'xxyw', 'xxzx', 'xxzy', 'xxzz', 'xxzw', 'xxwx', 'xxwy', 'xxwz', 'xxww', 'xyxx', 'xyxy', 'xyxz', 'xyxw', 'xyyx', 'xyyy', 'xyyz', 'xyyw', 'xyzx', 'xyzy', 'xyzz', 'xyzw', 'xywx', 'xywy', 'xywz', 'xyww', 'xzxx', 'xzxy', 'xzxz', 'xzxw', 'xzyx', 'xzyy', 'xzyz', 'xzyw', 'xzzx', 'xzzy', 'xzzz', 'xzzw', 'xzwx', 'xzwy', 'xzwz', 'xzww', 'xwxx', 'xwxy', 'xwxz', 'xwxw', 'xwyx', 'xwyy', 'xwyz', 'xwyw', 'xwzx', 'xwzy', 'xwzz', 'xwzw', 'xwwx', 'xwwy', 'xwwz', 'xwww', 'yxxx', 'yxxy', 'yxxz', 'yxxw', 'yxyx', 'yxyy', 'yxyz', 'yxyw', 'yxzx', 'yxzy', 'yxzz', 'yxzw', 'yxwx', 'yxwy', 'yxwz', 'yxww', 'yyxx', 'yyxy', 'yyxz', 'yyxw', 'yyyx', 'yyyy', 'yyyz', 'yyyw', 'yyzx', 'yyzy', 'yyzz', 'yyzw', 'yywx', 'yywy', 'yywz', 'yyww', 'yzxx', 'yzxy', 'yzxz', 'yzxw', 'yzyx', 'yzyy', 'yzyz', 'yzyw', 'yzzx', 'yzzy', 'yzzz', 'yzzw', 'yzwx', 'yzwy', 'yzwz', 'yzww', 'ywxx', 'ywxy', 'ywxz', 'ywxw', 'ywyx', 'ywyy', 'ywyz', 'ywyw', 'ywzx', 'ywzy', 'ywzz', 'ywzw', 'ywwx', 'ywwy', 'ywwz', 'ywww', 'zxxx', 'zxxy', 'zxxz', 'zxxw', 'zxyx', 'zxyy', 'zxyz', 'zxyw', 'zxzx', 'zxzy', 'zxzz', 'zxzw', 'zxwx', 'zxwy', 'zxwz', 'zxww', 'zyxx', 'zyxy', 'zyxz', 'zyxw', 'zyyx', 'zyyy', 'zyyz', 'zyyw', 'zyzx', 'zyzy', 'zyzz', 'zyzw', 'zywx', 'zywy', 'zywz', 'zyww', 'zzxx', 'zzxy', 'zzxz', 'zzxw', 'zzyx', 'zzyy', 'zzyz', 'zzyw', 'zzzx', 'zzzy', 'zzzz', 'zzzw', 'zzwx', 'zzwy', 'zzwz', 'zzww', 'zwxx', 'zwxy', 'zwxz', 'zwxw', 'zwyx', 'zwyy', 'zwyz', 'zwyw', 'zwzx', 'zwzy', 'zwzz', 'zwzw', 'zwwx', 'zwwy', 'zwwz', 'zwww', 'wxxx', 'wxxy', 'wxxz', 'wxxw', 'wxyx', 'wxyy', 'wxyz', 'wxyw', 'wxzx', 'wxzy', 'wxzz', 'wxzw', 'wxwx', 'wxwy', 'wxwz', 'wxww', 'wyxx', 'wyxy', 'wyxz', 'wyxw', 'wyyx', 'wyyy', 'wyyz', 'wyyw', 'wyzx', 'wyzy', 'wyzz', 'wyzw', 'wywx', 'wywy', 'wywz', 'wyww', 'wzxx', 'wzxy', 'wzxz', 'wzxw', 'wzyx', 'wzyy', 'wzyz', 'wzyw', 'wzzx', 'wzzy', 'wzzz', 'wzzw', 'wzwx', 'wzwy', 'wzwz', 'wzww', 'wwxx', 'wwxy', 'wwxz', 'wwxw', 'wwyx', 'wwyy', 'wwyz', 'wwyw', 'wwzx', 'wwzy', 'wwzz', 'wwzw', 'wwwx', 'wwwy', 'wwwz', 'wwww']);
  dart.defineLazy(typed_data.Float32x4, {
    /*typed_data.Float32x4.xxxx*/get xxxx() {
      return 0;
    },
    /*typed_data.Float32x4.xxxy*/get xxxy() {
      return 64;
    },
    /*typed_data.Float32x4.xxxz*/get xxxz() {
      return 128;
    },
    /*typed_data.Float32x4.xxxw*/get xxxw() {
      return 192;
    },
    /*typed_data.Float32x4.xxyx*/get xxyx() {
      return 16;
    },
    /*typed_data.Float32x4.xxyy*/get xxyy() {
      return 80;
    },
    /*typed_data.Float32x4.xxyz*/get xxyz() {
      return 144;
    },
    /*typed_data.Float32x4.xxyw*/get xxyw() {
      return 208;
    },
    /*typed_data.Float32x4.xxzx*/get xxzx() {
      return 32;
    },
    /*typed_data.Float32x4.xxzy*/get xxzy() {
      return 96;
    },
    /*typed_data.Float32x4.xxzz*/get xxzz() {
      return 160;
    },
    /*typed_data.Float32x4.xxzw*/get xxzw() {
      return 224;
    },
    /*typed_data.Float32x4.xxwx*/get xxwx() {
      return 48;
    },
    /*typed_data.Float32x4.xxwy*/get xxwy() {
      return 112;
    },
    /*typed_data.Float32x4.xxwz*/get xxwz() {
      return 176;
    },
    /*typed_data.Float32x4.xxww*/get xxww() {
      return 240;
    },
    /*typed_data.Float32x4.xyxx*/get xyxx() {
      return 4;
    },
    /*typed_data.Float32x4.xyxy*/get xyxy() {
      return 68;
    },
    /*typed_data.Float32x4.xyxz*/get xyxz() {
      return 132;
    },
    /*typed_data.Float32x4.xyxw*/get xyxw() {
      return 196;
    },
    /*typed_data.Float32x4.xyyx*/get xyyx() {
      return 20;
    },
    /*typed_data.Float32x4.xyyy*/get xyyy() {
      return 84;
    },
    /*typed_data.Float32x4.xyyz*/get xyyz() {
      return 148;
    },
    /*typed_data.Float32x4.xyyw*/get xyyw() {
      return 212;
    },
    /*typed_data.Float32x4.xyzx*/get xyzx() {
      return 36;
    },
    /*typed_data.Float32x4.xyzy*/get xyzy() {
      return 100;
    },
    /*typed_data.Float32x4.xyzz*/get xyzz() {
      return 164;
    },
    /*typed_data.Float32x4.xyzw*/get xyzw() {
      return 228;
    },
    /*typed_data.Float32x4.xywx*/get xywx() {
      return 52;
    },
    /*typed_data.Float32x4.xywy*/get xywy() {
      return 116;
    },
    /*typed_data.Float32x4.xywz*/get xywz() {
      return 180;
    },
    /*typed_data.Float32x4.xyww*/get xyww() {
      return 244;
    },
    /*typed_data.Float32x4.xzxx*/get xzxx() {
      return 8;
    },
    /*typed_data.Float32x4.xzxy*/get xzxy() {
      return 72;
    },
    /*typed_data.Float32x4.xzxz*/get xzxz() {
      return 136;
    },
    /*typed_data.Float32x4.xzxw*/get xzxw() {
      return 200;
    },
    /*typed_data.Float32x4.xzyx*/get xzyx() {
      return 24;
    },
    /*typed_data.Float32x4.xzyy*/get xzyy() {
      return 88;
    },
    /*typed_data.Float32x4.xzyz*/get xzyz() {
      return 152;
    },
    /*typed_data.Float32x4.xzyw*/get xzyw() {
      return 216;
    },
    /*typed_data.Float32x4.xzzx*/get xzzx() {
      return 40;
    },
    /*typed_data.Float32x4.xzzy*/get xzzy() {
      return 104;
    },
    /*typed_data.Float32x4.xzzz*/get xzzz() {
      return 168;
    },
    /*typed_data.Float32x4.xzzw*/get xzzw() {
      return 232;
    },
    /*typed_data.Float32x4.xzwx*/get xzwx() {
      return 56;
    },
    /*typed_data.Float32x4.xzwy*/get xzwy() {
      return 120;
    },
    /*typed_data.Float32x4.xzwz*/get xzwz() {
      return 184;
    },
    /*typed_data.Float32x4.xzww*/get xzww() {
      return 248;
    },
    /*typed_data.Float32x4.xwxx*/get xwxx() {
      return 12;
    },
    /*typed_data.Float32x4.xwxy*/get xwxy() {
      return 76;
    },
    /*typed_data.Float32x4.xwxz*/get xwxz() {
      return 140;
    },
    /*typed_data.Float32x4.xwxw*/get xwxw() {
      return 204;
    },
    /*typed_data.Float32x4.xwyx*/get xwyx() {
      return 28;
    },
    /*typed_data.Float32x4.xwyy*/get xwyy() {
      return 92;
    },
    /*typed_data.Float32x4.xwyz*/get xwyz() {
      return 156;
    },
    /*typed_data.Float32x4.xwyw*/get xwyw() {
      return 220;
    },
    /*typed_data.Float32x4.xwzx*/get xwzx() {
      return 44;
    },
    /*typed_data.Float32x4.xwzy*/get xwzy() {
      return 108;
    },
    /*typed_data.Float32x4.xwzz*/get xwzz() {
      return 172;
    },
    /*typed_data.Float32x4.xwzw*/get xwzw() {
      return 236;
    },
    /*typed_data.Float32x4.xwwx*/get xwwx() {
      return 60;
    },
    /*typed_data.Float32x4.xwwy*/get xwwy() {
      return 124;
    },
    /*typed_data.Float32x4.xwwz*/get xwwz() {
      return 188;
    },
    /*typed_data.Float32x4.xwww*/get xwww() {
      return 252;
    },
    /*typed_data.Float32x4.yxxx*/get yxxx() {
      return 1;
    },
    /*typed_data.Float32x4.yxxy*/get yxxy() {
      return 65;
    },
    /*typed_data.Float32x4.yxxz*/get yxxz() {
      return 129;
    },
    /*typed_data.Float32x4.yxxw*/get yxxw() {
      return 193;
    },
    /*typed_data.Float32x4.yxyx*/get yxyx() {
      return 17;
    },
    /*typed_data.Float32x4.yxyy*/get yxyy() {
      return 81;
    },
    /*typed_data.Float32x4.yxyz*/get yxyz() {
      return 145;
    },
    /*typed_data.Float32x4.yxyw*/get yxyw() {
      return 209;
    },
    /*typed_data.Float32x4.yxzx*/get yxzx() {
      return 33;
    },
    /*typed_data.Float32x4.yxzy*/get yxzy() {
      return 97;
    },
    /*typed_data.Float32x4.yxzz*/get yxzz() {
      return 161;
    },
    /*typed_data.Float32x4.yxzw*/get yxzw() {
      return 225;
    },
    /*typed_data.Float32x4.yxwx*/get yxwx() {
      return 49;
    },
    /*typed_data.Float32x4.yxwy*/get yxwy() {
      return 113;
    },
    /*typed_data.Float32x4.yxwz*/get yxwz() {
      return 177;
    },
    /*typed_data.Float32x4.yxww*/get yxww() {
      return 241;
    },
    /*typed_data.Float32x4.yyxx*/get yyxx() {
      return 5;
    },
    /*typed_data.Float32x4.yyxy*/get yyxy() {
      return 69;
    },
    /*typed_data.Float32x4.yyxz*/get yyxz() {
      return 133;
    },
    /*typed_data.Float32x4.yyxw*/get yyxw() {
      return 197;
    },
    /*typed_data.Float32x4.yyyx*/get yyyx() {
      return 21;
    },
    /*typed_data.Float32x4.yyyy*/get yyyy() {
      return 85;
    },
    /*typed_data.Float32x4.yyyz*/get yyyz() {
      return 149;
    },
    /*typed_data.Float32x4.yyyw*/get yyyw() {
      return 213;
    },
    /*typed_data.Float32x4.yyzx*/get yyzx() {
      return 37;
    },
    /*typed_data.Float32x4.yyzy*/get yyzy() {
      return 101;
    },
    /*typed_data.Float32x4.yyzz*/get yyzz() {
      return 165;
    },
    /*typed_data.Float32x4.yyzw*/get yyzw() {
      return 229;
    },
    /*typed_data.Float32x4.yywx*/get yywx() {
      return 53;
    },
    /*typed_data.Float32x4.yywy*/get yywy() {
      return 117;
    },
    /*typed_data.Float32x4.yywz*/get yywz() {
      return 181;
    },
    /*typed_data.Float32x4.yyww*/get yyww() {
      return 245;
    },
    /*typed_data.Float32x4.yzxx*/get yzxx() {
      return 9;
    },
    /*typed_data.Float32x4.yzxy*/get yzxy() {
      return 73;
    },
    /*typed_data.Float32x4.yzxz*/get yzxz() {
      return 137;
    },
    /*typed_data.Float32x4.yzxw*/get yzxw() {
      return 201;
    },
    /*typed_data.Float32x4.yzyx*/get yzyx() {
      return 25;
    },
    /*typed_data.Float32x4.yzyy*/get yzyy() {
      return 89;
    },
    /*typed_data.Float32x4.yzyz*/get yzyz() {
      return 153;
    },
    /*typed_data.Float32x4.yzyw*/get yzyw() {
      return 217;
    },
    /*typed_data.Float32x4.yzzx*/get yzzx() {
      return 41;
    },
    /*typed_data.Float32x4.yzzy*/get yzzy() {
      return 105;
    },
    /*typed_data.Float32x4.yzzz*/get yzzz() {
      return 169;
    },
    /*typed_data.Float32x4.yzzw*/get yzzw() {
      return 233;
    },
    /*typed_data.Float32x4.yzwx*/get yzwx() {
      return 57;
    },
    /*typed_data.Float32x4.yzwy*/get yzwy() {
      return 121;
    },
    /*typed_data.Float32x4.yzwz*/get yzwz() {
      return 185;
    },
    /*typed_data.Float32x4.yzww*/get yzww() {
      return 249;
    },
    /*typed_data.Float32x4.ywxx*/get ywxx() {
      return 13;
    },
    /*typed_data.Float32x4.ywxy*/get ywxy() {
      return 77;
    },
    /*typed_data.Float32x4.ywxz*/get ywxz() {
      return 141;
    },
    /*typed_data.Float32x4.ywxw*/get ywxw() {
      return 205;
    },
    /*typed_data.Float32x4.ywyx*/get ywyx() {
      return 29;
    },
    /*typed_data.Float32x4.ywyy*/get ywyy() {
      return 93;
    },
    /*typed_data.Float32x4.ywyz*/get ywyz() {
      return 157;
    },
    /*typed_data.Float32x4.ywyw*/get ywyw() {
      return 221;
    },
    /*typed_data.Float32x4.ywzx*/get ywzx() {
      return 45;
    },
    /*typed_data.Float32x4.ywzy*/get ywzy() {
      return 109;
    },
    /*typed_data.Float32x4.ywzz*/get ywzz() {
      return 173;
    },
    /*typed_data.Float32x4.ywzw*/get ywzw() {
      return 237;
    },
    /*typed_data.Float32x4.ywwx*/get ywwx() {
      return 61;
    },
    /*typed_data.Float32x4.ywwy*/get ywwy() {
      return 125;
    },
    /*typed_data.Float32x4.ywwz*/get ywwz() {
      return 189;
    },
    /*typed_data.Float32x4.ywww*/get ywww() {
      return 253;
    },
    /*typed_data.Float32x4.zxxx*/get zxxx() {
      return 2;
    },
    /*typed_data.Float32x4.zxxy*/get zxxy() {
      return 66;
    },
    /*typed_data.Float32x4.zxxz*/get zxxz() {
      return 130;
    },
    /*typed_data.Float32x4.zxxw*/get zxxw() {
      return 194;
    },
    /*typed_data.Float32x4.zxyx*/get zxyx() {
      return 18;
    },
    /*typed_data.Float32x4.zxyy*/get zxyy() {
      return 82;
    },
    /*typed_data.Float32x4.zxyz*/get zxyz() {
      return 146;
    },
    /*typed_data.Float32x4.zxyw*/get zxyw() {
      return 210;
    },
    /*typed_data.Float32x4.zxzx*/get zxzx() {
      return 34;
    },
    /*typed_data.Float32x4.zxzy*/get zxzy() {
      return 98;
    },
    /*typed_data.Float32x4.zxzz*/get zxzz() {
      return 162;
    },
    /*typed_data.Float32x4.zxzw*/get zxzw() {
      return 226;
    },
    /*typed_data.Float32x4.zxwx*/get zxwx() {
      return 50;
    },
    /*typed_data.Float32x4.zxwy*/get zxwy() {
      return 114;
    },
    /*typed_data.Float32x4.zxwz*/get zxwz() {
      return 178;
    },
    /*typed_data.Float32x4.zxww*/get zxww() {
      return 242;
    },
    /*typed_data.Float32x4.zyxx*/get zyxx() {
      return 6;
    },
    /*typed_data.Float32x4.zyxy*/get zyxy() {
      return 70;
    },
    /*typed_data.Float32x4.zyxz*/get zyxz() {
      return 134;
    },
    /*typed_data.Float32x4.zyxw*/get zyxw() {
      return 198;
    },
    /*typed_data.Float32x4.zyyx*/get zyyx() {
      return 22;
    },
    /*typed_data.Float32x4.zyyy*/get zyyy() {
      return 86;
    },
    /*typed_data.Float32x4.zyyz*/get zyyz() {
      return 150;
    },
    /*typed_data.Float32x4.zyyw*/get zyyw() {
      return 214;
    },
    /*typed_data.Float32x4.zyzx*/get zyzx() {
      return 38;
    },
    /*typed_data.Float32x4.zyzy*/get zyzy() {
      return 102;
    },
    /*typed_data.Float32x4.zyzz*/get zyzz() {
      return 166;
    },
    /*typed_data.Float32x4.zyzw*/get zyzw() {
      return 230;
    },
    /*typed_data.Float32x4.zywx*/get zywx() {
      return 54;
    },
    /*typed_data.Float32x4.zywy*/get zywy() {
      return 118;
    },
    /*typed_data.Float32x4.zywz*/get zywz() {
      return 182;
    },
    /*typed_data.Float32x4.zyww*/get zyww() {
      return 246;
    },
    /*typed_data.Float32x4.zzxx*/get zzxx() {
      return 10;
    },
    /*typed_data.Float32x4.zzxy*/get zzxy() {
      return 74;
    },
    /*typed_data.Float32x4.zzxz*/get zzxz() {
      return 138;
    },
    /*typed_data.Float32x4.zzxw*/get zzxw() {
      return 202;
    },
    /*typed_data.Float32x4.zzyx*/get zzyx() {
      return 26;
    },
    /*typed_data.Float32x4.zzyy*/get zzyy() {
      return 90;
    },
    /*typed_data.Float32x4.zzyz*/get zzyz() {
      return 154;
    },
    /*typed_data.Float32x4.zzyw*/get zzyw() {
      return 218;
    },
    /*typed_data.Float32x4.zzzx*/get zzzx() {
      return 42;
    },
    /*typed_data.Float32x4.zzzy*/get zzzy() {
      return 106;
    },
    /*typed_data.Float32x4.zzzz*/get zzzz() {
      return 170;
    },
    /*typed_data.Float32x4.zzzw*/get zzzw() {
      return 234;
    },
    /*typed_data.Float32x4.zzwx*/get zzwx() {
      return 58;
    },
    /*typed_data.Float32x4.zzwy*/get zzwy() {
      return 122;
    },
    /*typed_data.Float32x4.zzwz*/get zzwz() {
      return 186;
    },
    /*typed_data.Float32x4.zzww*/get zzww() {
      return 250;
    },
    /*typed_data.Float32x4.zwxx*/get zwxx() {
      return 14;
    },
    /*typed_data.Float32x4.zwxy*/get zwxy() {
      return 78;
    },
    /*typed_data.Float32x4.zwxz*/get zwxz() {
      return 142;
    },
    /*typed_data.Float32x4.zwxw*/get zwxw() {
      return 206;
    },
    /*typed_data.Float32x4.zwyx*/get zwyx() {
      return 30;
    },
    /*typed_data.Float32x4.zwyy*/get zwyy() {
      return 94;
    },
    /*typed_data.Float32x4.zwyz*/get zwyz() {
      return 158;
    },
    /*typed_data.Float32x4.zwyw*/get zwyw() {
      return 222;
    },
    /*typed_data.Float32x4.zwzx*/get zwzx() {
      return 46;
    },
    /*typed_data.Float32x4.zwzy*/get zwzy() {
      return 110;
    },
    /*typed_data.Float32x4.zwzz*/get zwzz() {
      return 174;
    },
    /*typed_data.Float32x4.zwzw*/get zwzw() {
      return 238;
    },
    /*typed_data.Float32x4.zwwx*/get zwwx() {
      return 62;
    },
    /*typed_data.Float32x4.zwwy*/get zwwy() {
      return 126;
    },
    /*typed_data.Float32x4.zwwz*/get zwwz() {
      return 190;
    },
    /*typed_data.Float32x4.zwww*/get zwww() {
      return 254;
    },
    /*typed_data.Float32x4.wxxx*/get wxxx() {
      return 3;
    },
    /*typed_data.Float32x4.wxxy*/get wxxy() {
      return 67;
    },
    /*typed_data.Float32x4.wxxz*/get wxxz() {
      return 131;
    },
    /*typed_data.Float32x4.wxxw*/get wxxw() {
      return 195;
    },
    /*typed_data.Float32x4.wxyx*/get wxyx() {
      return 19;
    },
    /*typed_data.Float32x4.wxyy*/get wxyy() {
      return 83;
    },
    /*typed_data.Float32x4.wxyz*/get wxyz() {
      return 147;
    },
    /*typed_data.Float32x4.wxyw*/get wxyw() {
      return 211;
    },
    /*typed_data.Float32x4.wxzx*/get wxzx() {
      return 35;
    },
    /*typed_data.Float32x4.wxzy*/get wxzy() {
      return 99;
    },
    /*typed_data.Float32x4.wxzz*/get wxzz() {
      return 163;
    },
    /*typed_data.Float32x4.wxzw*/get wxzw() {
      return 227;
    },
    /*typed_data.Float32x4.wxwx*/get wxwx() {
      return 51;
    },
    /*typed_data.Float32x4.wxwy*/get wxwy() {
      return 115;
    },
    /*typed_data.Float32x4.wxwz*/get wxwz() {
      return 179;
    },
    /*typed_data.Float32x4.wxww*/get wxww() {
      return 243;
    },
    /*typed_data.Float32x4.wyxx*/get wyxx() {
      return 7;
    },
    /*typed_data.Float32x4.wyxy*/get wyxy() {
      return 71;
    },
    /*typed_data.Float32x4.wyxz*/get wyxz() {
      return 135;
    },
    /*typed_data.Float32x4.wyxw*/get wyxw() {
      return 199;
    },
    /*typed_data.Float32x4.wyyx*/get wyyx() {
      return 23;
    },
    /*typed_data.Float32x4.wyyy*/get wyyy() {
      return 87;
    },
    /*typed_data.Float32x4.wyyz*/get wyyz() {
      return 151;
    },
    /*typed_data.Float32x4.wyyw*/get wyyw() {
      return 215;
    },
    /*typed_data.Float32x4.wyzx*/get wyzx() {
      return 39;
    },
    /*typed_data.Float32x4.wyzy*/get wyzy() {
      return 103;
    },
    /*typed_data.Float32x4.wyzz*/get wyzz() {
      return 167;
    },
    /*typed_data.Float32x4.wyzw*/get wyzw() {
      return 231;
    },
    /*typed_data.Float32x4.wywx*/get wywx() {
      return 55;
    },
    /*typed_data.Float32x4.wywy*/get wywy() {
      return 119;
    },
    /*typed_data.Float32x4.wywz*/get wywz() {
      return 183;
    },
    /*typed_data.Float32x4.wyww*/get wyww() {
      return 247;
    },
    /*typed_data.Float32x4.wzxx*/get wzxx() {
      return 11;
    },
    /*typed_data.Float32x4.wzxy*/get wzxy() {
      return 75;
    },
    /*typed_data.Float32x4.wzxz*/get wzxz() {
      return 139;
    },
    /*typed_data.Float32x4.wzxw*/get wzxw() {
      return 203;
    },
    /*typed_data.Float32x4.wzyx*/get wzyx() {
      return 27;
    },
    /*typed_data.Float32x4.wzyy*/get wzyy() {
      return 91;
    },
    /*typed_data.Float32x4.wzyz*/get wzyz() {
      return 155;
    },
    /*typed_data.Float32x4.wzyw*/get wzyw() {
      return 219;
    },
    /*typed_data.Float32x4.wzzx*/get wzzx() {
      return 43;
    },
    /*typed_data.Float32x4.wzzy*/get wzzy() {
      return 107;
    },
    /*typed_data.Float32x4.wzzz*/get wzzz() {
      return 171;
    },
    /*typed_data.Float32x4.wzzw*/get wzzw() {
      return 235;
    },
    /*typed_data.Float32x4.wzwx*/get wzwx() {
      return 59;
    },
    /*typed_data.Float32x4.wzwy*/get wzwy() {
      return 123;
    },
    /*typed_data.Float32x4.wzwz*/get wzwz() {
      return 187;
    },
    /*typed_data.Float32x4.wzww*/get wzww() {
      return 251;
    },
    /*typed_data.Float32x4.wwxx*/get wwxx() {
      return 15;
    },
    /*typed_data.Float32x4.wwxy*/get wwxy() {
      return 79;
    },
    /*typed_data.Float32x4.wwxz*/get wwxz() {
      return 143;
    },
    /*typed_data.Float32x4.wwxw*/get wwxw() {
      return 207;
    },
    /*typed_data.Float32x4.wwyx*/get wwyx() {
      return 31;
    },
    /*typed_data.Float32x4.wwyy*/get wwyy() {
      return 95;
    },
    /*typed_data.Float32x4.wwyz*/get wwyz() {
      return 159;
    },
    /*typed_data.Float32x4.wwyw*/get wwyw() {
      return 223;
    },
    /*typed_data.Float32x4.wwzx*/get wwzx() {
      return 47;
    },
    /*typed_data.Float32x4.wwzy*/get wwzy() {
      return 111;
    },
    /*typed_data.Float32x4.wwzz*/get wwzz() {
      return 175;
    },
    /*typed_data.Float32x4.wwzw*/get wwzw() {
      return 239;
    },
    /*typed_data.Float32x4.wwwx*/get wwwx() {
      return 63;
    },
    /*typed_data.Float32x4.wwwy*/get wwwy() {
      return 127;
    },
    /*typed_data.Float32x4.wwwz*/get wwwz() {
      return 191;
    },
    /*typed_data.Float32x4.wwww*/get wwww() {
      return 255;
    }
  }, false);
  typed_data.Int32x4 = class Int32x4 extends core.Object {
    static ['_#new#tearOff'](x, y, z, w) {
      if (x == null) dart.nullFailed(I[163], 172, 23, "x");
      if (y == null) dart.nullFailed(I[163], 172, 30, "y");
      if (z == null) dart.nullFailed(I[163], 172, 37, "z");
      if (w == null) dart.nullFailed(I[163], 172, 44, "w");
      return new _native_typed_data.NativeInt32x4.new(x, y, z, w);
    }
    static ['_#bool#tearOff'](x, y, z, w) {
      if (x == null) dart.nullFailed(I[163], 174, 29, "x");
      if (y == null) dart.nullFailed(I[163], 174, 37, "y");
      if (z == null) dart.nullFailed(I[163], 174, 45, "z");
      if (w == null) dart.nullFailed(I[163], 174, 53, "w");
      return new _native_typed_data.NativeInt32x4.bool(x, y, z, w);
    }
    static ['_#fromFloat32x4Bits#tearOff'](x) {
      if (x == null) dart.nullFailed(I[163], 176, 47, "x");
      return _native_typed_data.NativeInt32x4.fromFloat32x4Bits(x);
    }
  };
  (typed_data.Int32x4[dart.mixinNew] = function() {
  }).prototype = typed_data.Int32x4.prototype;
  dart.addRtiResources(typed_data.Int32x4, ["typed_data|Int32x4"]);
  dart.setStaticMethodSignature(typed_data.Int32x4, () => ['new', 'bool', 'fromFloat32x4Bits']);
  dart.setLibraryUri(typed_data.Int32x4, I[43]);
  dart.setStaticFieldSignature(typed_data.Int32x4, () => ['xxxx', 'xxxy', 'xxxz', 'xxxw', 'xxyx', 'xxyy', 'xxyz', 'xxyw', 'xxzx', 'xxzy', 'xxzz', 'xxzw', 'xxwx', 'xxwy', 'xxwz', 'xxww', 'xyxx', 'xyxy', 'xyxz', 'xyxw', 'xyyx', 'xyyy', 'xyyz', 'xyyw', 'xyzx', 'xyzy', 'xyzz', 'xyzw', 'xywx', 'xywy', 'xywz', 'xyww', 'xzxx', 'xzxy', 'xzxz', 'xzxw', 'xzyx', 'xzyy', 'xzyz', 'xzyw', 'xzzx', 'xzzy', 'xzzz', 'xzzw', 'xzwx', 'xzwy', 'xzwz', 'xzww', 'xwxx', 'xwxy', 'xwxz', 'xwxw', 'xwyx', 'xwyy', 'xwyz', 'xwyw', 'xwzx', 'xwzy', 'xwzz', 'xwzw', 'xwwx', 'xwwy', 'xwwz', 'xwww', 'yxxx', 'yxxy', 'yxxz', 'yxxw', 'yxyx', 'yxyy', 'yxyz', 'yxyw', 'yxzx', 'yxzy', 'yxzz', 'yxzw', 'yxwx', 'yxwy', 'yxwz', 'yxww', 'yyxx', 'yyxy', 'yyxz', 'yyxw', 'yyyx', 'yyyy', 'yyyz', 'yyyw', 'yyzx', 'yyzy', 'yyzz', 'yyzw', 'yywx', 'yywy', 'yywz', 'yyww', 'yzxx', 'yzxy', 'yzxz', 'yzxw', 'yzyx', 'yzyy', 'yzyz', 'yzyw', 'yzzx', 'yzzy', 'yzzz', 'yzzw', 'yzwx', 'yzwy', 'yzwz', 'yzww', 'ywxx', 'ywxy', 'ywxz', 'ywxw', 'ywyx', 'ywyy', 'ywyz', 'ywyw', 'ywzx', 'ywzy', 'ywzz', 'ywzw', 'ywwx', 'ywwy', 'ywwz', 'ywww', 'zxxx', 'zxxy', 'zxxz', 'zxxw', 'zxyx', 'zxyy', 'zxyz', 'zxyw', 'zxzx', 'zxzy', 'zxzz', 'zxzw', 'zxwx', 'zxwy', 'zxwz', 'zxww', 'zyxx', 'zyxy', 'zyxz', 'zyxw', 'zyyx', 'zyyy', 'zyyz', 'zyyw', 'zyzx', 'zyzy', 'zyzz', 'zyzw', 'zywx', 'zywy', 'zywz', 'zyww', 'zzxx', 'zzxy', 'zzxz', 'zzxw', 'zzyx', 'zzyy', 'zzyz', 'zzyw', 'zzzx', 'zzzy', 'zzzz', 'zzzw', 'zzwx', 'zzwy', 'zzwz', 'zzww', 'zwxx', 'zwxy', 'zwxz', 'zwxw', 'zwyx', 'zwyy', 'zwyz', 'zwyw', 'zwzx', 'zwzy', 'zwzz', 'zwzw', 'zwwx', 'zwwy', 'zwwz', 'zwww', 'wxxx', 'wxxy', 'wxxz', 'wxxw', 'wxyx', 'wxyy', 'wxyz', 'wxyw', 'wxzx', 'wxzy', 'wxzz', 'wxzw', 'wxwx', 'wxwy', 'wxwz', 'wxww', 'wyxx', 'wyxy', 'wyxz', 'wyxw', 'wyyx', 'wyyy', 'wyyz', 'wyyw', 'wyzx', 'wyzy', 'wyzz', 'wyzw', 'wywx', 'wywy', 'wywz', 'wyww', 'wzxx', 'wzxy', 'wzxz', 'wzxw', 'wzyx', 'wzyy', 'wzyz', 'wzyw', 'wzzx', 'wzzy', 'wzzz', 'wzzw', 'wzwx', 'wzwy', 'wzwz', 'wzww', 'wwxx', 'wwxy', 'wwxz', 'wwxw', 'wwyx', 'wwyy', 'wwyz', 'wwyw', 'wwzx', 'wwzy', 'wwzz', 'wwzw', 'wwwx', 'wwwy', 'wwwz', 'wwww']);
  dart.defineLazy(typed_data.Int32x4, {
    /*typed_data.Int32x4.xxxx*/get xxxx() {
      return 0;
    },
    /*typed_data.Int32x4.xxxy*/get xxxy() {
      return 64;
    },
    /*typed_data.Int32x4.xxxz*/get xxxz() {
      return 128;
    },
    /*typed_data.Int32x4.xxxw*/get xxxw() {
      return 192;
    },
    /*typed_data.Int32x4.xxyx*/get xxyx() {
      return 16;
    },
    /*typed_data.Int32x4.xxyy*/get xxyy() {
      return 80;
    },
    /*typed_data.Int32x4.xxyz*/get xxyz() {
      return 144;
    },
    /*typed_data.Int32x4.xxyw*/get xxyw() {
      return 208;
    },
    /*typed_data.Int32x4.xxzx*/get xxzx() {
      return 32;
    },
    /*typed_data.Int32x4.xxzy*/get xxzy() {
      return 96;
    },
    /*typed_data.Int32x4.xxzz*/get xxzz() {
      return 160;
    },
    /*typed_data.Int32x4.xxzw*/get xxzw() {
      return 224;
    },
    /*typed_data.Int32x4.xxwx*/get xxwx() {
      return 48;
    },
    /*typed_data.Int32x4.xxwy*/get xxwy() {
      return 112;
    },
    /*typed_data.Int32x4.xxwz*/get xxwz() {
      return 176;
    },
    /*typed_data.Int32x4.xxww*/get xxww() {
      return 240;
    },
    /*typed_data.Int32x4.xyxx*/get xyxx() {
      return 4;
    },
    /*typed_data.Int32x4.xyxy*/get xyxy() {
      return 68;
    },
    /*typed_data.Int32x4.xyxz*/get xyxz() {
      return 132;
    },
    /*typed_data.Int32x4.xyxw*/get xyxw() {
      return 196;
    },
    /*typed_data.Int32x4.xyyx*/get xyyx() {
      return 20;
    },
    /*typed_data.Int32x4.xyyy*/get xyyy() {
      return 84;
    },
    /*typed_data.Int32x4.xyyz*/get xyyz() {
      return 148;
    },
    /*typed_data.Int32x4.xyyw*/get xyyw() {
      return 212;
    },
    /*typed_data.Int32x4.xyzx*/get xyzx() {
      return 36;
    },
    /*typed_data.Int32x4.xyzy*/get xyzy() {
      return 100;
    },
    /*typed_data.Int32x4.xyzz*/get xyzz() {
      return 164;
    },
    /*typed_data.Int32x4.xyzw*/get xyzw() {
      return 228;
    },
    /*typed_data.Int32x4.xywx*/get xywx() {
      return 52;
    },
    /*typed_data.Int32x4.xywy*/get xywy() {
      return 116;
    },
    /*typed_data.Int32x4.xywz*/get xywz() {
      return 180;
    },
    /*typed_data.Int32x4.xyww*/get xyww() {
      return 244;
    },
    /*typed_data.Int32x4.xzxx*/get xzxx() {
      return 8;
    },
    /*typed_data.Int32x4.xzxy*/get xzxy() {
      return 72;
    },
    /*typed_data.Int32x4.xzxz*/get xzxz() {
      return 136;
    },
    /*typed_data.Int32x4.xzxw*/get xzxw() {
      return 200;
    },
    /*typed_data.Int32x4.xzyx*/get xzyx() {
      return 24;
    },
    /*typed_data.Int32x4.xzyy*/get xzyy() {
      return 88;
    },
    /*typed_data.Int32x4.xzyz*/get xzyz() {
      return 152;
    },
    /*typed_data.Int32x4.xzyw*/get xzyw() {
      return 216;
    },
    /*typed_data.Int32x4.xzzx*/get xzzx() {
      return 40;
    },
    /*typed_data.Int32x4.xzzy*/get xzzy() {
      return 104;
    },
    /*typed_data.Int32x4.xzzz*/get xzzz() {
      return 168;
    },
    /*typed_data.Int32x4.xzzw*/get xzzw() {
      return 232;
    },
    /*typed_data.Int32x4.xzwx*/get xzwx() {
      return 56;
    },
    /*typed_data.Int32x4.xzwy*/get xzwy() {
      return 120;
    },
    /*typed_data.Int32x4.xzwz*/get xzwz() {
      return 184;
    },
    /*typed_data.Int32x4.xzww*/get xzww() {
      return 248;
    },
    /*typed_data.Int32x4.xwxx*/get xwxx() {
      return 12;
    },
    /*typed_data.Int32x4.xwxy*/get xwxy() {
      return 76;
    },
    /*typed_data.Int32x4.xwxz*/get xwxz() {
      return 140;
    },
    /*typed_data.Int32x4.xwxw*/get xwxw() {
      return 204;
    },
    /*typed_data.Int32x4.xwyx*/get xwyx() {
      return 28;
    },
    /*typed_data.Int32x4.xwyy*/get xwyy() {
      return 92;
    },
    /*typed_data.Int32x4.xwyz*/get xwyz() {
      return 156;
    },
    /*typed_data.Int32x4.xwyw*/get xwyw() {
      return 220;
    },
    /*typed_data.Int32x4.xwzx*/get xwzx() {
      return 44;
    },
    /*typed_data.Int32x4.xwzy*/get xwzy() {
      return 108;
    },
    /*typed_data.Int32x4.xwzz*/get xwzz() {
      return 172;
    },
    /*typed_data.Int32x4.xwzw*/get xwzw() {
      return 236;
    },
    /*typed_data.Int32x4.xwwx*/get xwwx() {
      return 60;
    },
    /*typed_data.Int32x4.xwwy*/get xwwy() {
      return 124;
    },
    /*typed_data.Int32x4.xwwz*/get xwwz() {
      return 188;
    },
    /*typed_data.Int32x4.xwww*/get xwww() {
      return 252;
    },
    /*typed_data.Int32x4.yxxx*/get yxxx() {
      return 1;
    },
    /*typed_data.Int32x4.yxxy*/get yxxy() {
      return 65;
    },
    /*typed_data.Int32x4.yxxz*/get yxxz() {
      return 129;
    },
    /*typed_data.Int32x4.yxxw*/get yxxw() {
      return 193;
    },
    /*typed_data.Int32x4.yxyx*/get yxyx() {
      return 17;
    },
    /*typed_data.Int32x4.yxyy*/get yxyy() {
      return 81;
    },
    /*typed_data.Int32x4.yxyz*/get yxyz() {
      return 145;
    },
    /*typed_data.Int32x4.yxyw*/get yxyw() {
      return 209;
    },
    /*typed_data.Int32x4.yxzx*/get yxzx() {
      return 33;
    },
    /*typed_data.Int32x4.yxzy*/get yxzy() {
      return 97;
    },
    /*typed_data.Int32x4.yxzz*/get yxzz() {
      return 161;
    },
    /*typed_data.Int32x4.yxzw*/get yxzw() {
      return 225;
    },
    /*typed_data.Int32x4.yxwx*/get yxwx() {
      return 49;
    },
    /*typed_data.Int32x4.yxwy*/get yxwy() {
      return 113;
    },
    /*typed_data.Int32x4.yxwz*/get yxwz() {
      return 177;
    },
    /*typed_data.Int32x4.yxww*/get yxww() {
      return 241;
    },
    /*typed_data.Int32x4.yyxx*/get yyxx() {
      return 5;
    },
    /*typed_data.Int32x4.yyxy*/get yyxy() {
      return 69;
    },
    /*typed_data.Int32x4.yyxz*/get yyxz() {
      return 133;
    },
    /*typed_data.Int32x4.yyxw*/get yyxw() {
      return 197;
    },
    /*typed_data.Int32x4.yyyx*/get yyyx() {
      return 21;
    },
    /*typed_data.Int32x4.yyyy*/get yyyy() {
      return 85;
    },
    /*typed_data.Int32x4.yyyz*/get yyyz() {
      return 149;
    },
    /*typed_data.Int32x4.yyyw*/get yyyw() {
      return 213;
    },
    /*typed_data.Int32x4.yyzx*/get yyzx() {
      return 37;
    },
    /*typed_data.Int32x4.yyzy*/get yyzy() {
      return 101;
    },
    /*typed_data.Int32x4.yyzz*/get yyzz() {
      return 165;
    },
    /*typed_data.Int32x4.yyzw*/get yyzw() {
      return 229;
    },
    /*typed_data.Int32x4.yywx*/get yywx() {
      return 53;
    },
    /*typed_data.Int32x4.yywy*/get yywy() {
      return 117;
    },
    /*typed_data.Int32x4.yywz*/get yywz() {
      return 181;
    },
    /*typed_data.Int32x4.yyww*/get yyww() {
      return 245;
    },
    /*typed_data.Int32x4.yzxx*/get yzxx() {
      return 9;
    },
    /*typed_data.Int32x4.yzxy*/get yzxy() {
      return 73;
    },
    /*typed_data.Int32x4.yzxz*/get yzxz() {
      return 137;
    },
    /*typed_data.Int32x4.yzxw*/get yzxw() {
      return 201;
    },
    /*typed_data.Int32x4.yzyx*/get yzyx() {
      return 25;
    },
    /*typed_data.Int32x4.yzyy*/get yzyy() {
      return 89;
    },
    /*typed_data.Int32x4.yzyz*/get yzyz() {
      return 153;
    },
    /*typed_data.Int32x4.yzyw*/get yzyw() {
      return 217;
    },
    /*typed_data.Int32x4.yzzx*/get yzzx() {
      return 41;
    },
    /*typed_data.Int32x4.yzzy*/get yzzy() {
      return 105;
    },
    /*typed_data.Int32x4.yzzz*/get yzzz() {
      return 169;
    },
    /*typed_data.Int32x4.yzzw*/get yzzw() {
      return 233;
    },
    /*typed_data.Int32x4.yzwx*/get yzwx() {
      return 57;
    },
    /*typed_data.Int32x4.yzwy*/get yzwy() {
      return 121;
    },
    /*typed_data.Int32x4.yzwz*/get yzwz() {
      return 185;
    },
    /*typed_data.Int32x4.yzww*/get yzww() {
      return 249;
    },
    /*typed_data.Int32x4.ywxx*/get ywxx() {
      return 13;
    },
    /*typed_data.Int32x4.ywxy*/get ywxy() {
      return 77;
    },
    /*typed_data.Int32x4.ywxz*/get ywxz() {
      return 141;
    },
    /*typed_data.Int32x4.ywxw*/get ywxw() {
      return 205;
    },
    /*typed_data.Int32x4.ywyx*/get ywyx() {
      return 29;
    },
    /*typed_data.Int32x4.ywyy*/get ywyy() {
      return 93;
    },
    /*typed_data.Int32x4.ywyz*/get ywyz() {
      return 157;
    },
    /*typed_data.Int32x4.ywyw*/get ywyw() {
      return 221;
    },
    /*typed_data.Int32x4.ywzx*/get ywzx() {
      return 45;
    },
    /*typed_data.Int32x4.ywzy*/get ywzy() {
      return 109;
    },
    /*typed_data.Int32x4.ywzz*/get ywzz() {
      return 173;
    },
    /*typed_data.Int32x4.ywzw*/get ywzw() {
      return 237;
    },
    /*typed_data.Int32x4.ywwx*/get ywwx() {
      return 61;
    },
    /*typed_data.Int32x4.ywwy*/get ywwy() {
      return 125;
    },
    /*typed_data.Int32x4.ywwz*/get ywwz() {
      return 189;
    },
    /*typed_data.Int32x4.ywww*/get ywww() {
      return 253;
    },
    /*typed_data.Int32x4.zxxx*/get zxxx() {
      return 2;
    },
    /*typed_data.Int32x4.zxxy*/get zxxy() {
      return 66;
    },
    /*typed_data.Int32x4.zxxz*/get zxxz() {
      return 130;
    },
    /*typed_data.Int32x4.zxxw*/get zxxw() {
      return 194;
    },
    /*typed_data.Int32x4.zxyx*/get zxyx() {
      return 18;
    },
    /*typed_data.Int32x4.zxyy*/get zxyy() {
      return 82;
    },
    /*typed_data.Int32x4.zxyz*/get zxyz() {
      return 146;
    },
    /*typed_data.Int32x4.zxyw*/get zxyw() {
      return 210;
    },
    /*typed_data.Int32x4.zxzx*/get zxzx() {
      return 34;
    },
    /*typed_data.Int32x4.zxzy*/get zxzy() {
      return 98;
    },
    /*typed_data.Int32x4.zxzz*/get zxzz() {
      return 162;
    },
    /*typed_data.Int32x4.zxzw*/get zxzw() {
      return 226;
    },
    /*typed_data.Int32x4.zxwx*/get zxwx() {
      return 50;
    },
    /*typed_data.Int32x4.zxwy*/get zxwy() {
      return 114;
    },
    /*typed_data.Int32x4.zxwz*/get zxwz() {
      return 178;
    },
    /*typed_data.Int32x4.zxww*/get zxww() {
      return 242;
    },
    /*typed_data.Int32x4.zyxx*/get zyxx() {
      return 6;
    },
    /*typed_data.Int32x4.zyxy*/get zyxy() {
      return 70;
    },
    /*typed_data.Int32x4.zyxz*/get zyxz() {
      return 134;
    },
    /*typed_data.Int32x4.zyxw*/get zyxw() {
      return 198;
    },
    /*typed_data.Int32x4.zyyx*/get zyyx() {
      return 22;
    },
    /*typed_data.Int32x4.zyyy*/get zyyy() {
      return 86;
    },
    /*typed_data.Int32x4.zyyz*/get zyyz() {
      return 150;
    },
    /*typed_data.Int32x4.zyyw*/get zyyw() {
      return 214;
    },
    /*typed_data.Int32x4.zyzx*/get zyzx() {
      return 38;
    },
    /*typed_data.Int32x4.zyzy*/get zyzy() {
      return 102;
    },
    /*typed_data.Int32x4.zyzz*/get zyzz() {
      return 166;
    },
    /*typed_data.Int32x4.zyzw*/get zyzw() {
      return 230;
    },
    /*typed_data.Int32x4.zywx*/get zywx() {
      return 54;
    },
    /*typed_data.Int32x4.zywy*/get zywy() {
      return 118;
    },
    /*typed_data.Int32x4.zywz*/get zywz() {
      return 182;
    },
    /*typed_data.Int32x4.zyww*/get zyww() {
      return 246;
    },
    /*typed_data.Int32x4.zzxx*/get zzxx() {
      return 10;
    },
    /*typed_data.Int32x4.zzxy*/get zzxy() {
      return 74;
    },
    /*typed_data.Int32x4.zzxz*/get zzxz() {
      return 138;
    },
    /*typed_data.Int32x4.zzxw*/get zzxw() {
      return 202;
    },
    /*typed_data.Int32x4.zzyx*/get zzyx() {
      return 26;
    },
    /*typed_data.Int32x4.zzyy*/get zzyy() {
      return 90;
    },
    /*typed_data.Int32x4.zzyz*/get zzyz() {
      return 154;
    },
    /*typed_data.Int32x4.zzyw*/get zzyw() {
      return 218;
    },
    /*typed_data.Int32x4.zzzx*/get zzzx() {
      return 42;
    },
    /*typed_data.Int32x4.zzzy*/get zzzy() {
      return 106;
    },
    /*typed_data.Int32x4.zzzz*/get zzzz() {
      return 170;
    },
    /*typed_data.Int32x4.zzzw*/get zzzw() {
      return 234;
    },
    /*typed_data.Int32x4.zzwx*/get zzwx() {
      return 58;
    },
    /*typed_data.Int32x4.zzwy*/get zzwy() {
      return 122;
    },
    /*typed_data.Int32x4.zzwz*/get zzwz() {
      return 186;
    },
    /*typed_data.Int32x4.zzww*/get zzww() {
      return 250;
    },
    /*typed_data.Int32x4.zwxx*/get zwxx() {
      return 14;
    },
    /*typed_data.Int32x4.zwxy*/get zwxy() {
      return 78;
    },
    /*typed_data.Int32x4.zwxz*/get zwxz() {
      return 142;
    },
    /*typed_data.Int32x4.zwxw*/get zwxw() {
      return 206;
    },
    /*typed_data.Int32x4.zwyx*/get zwyx() {
      return 30;
    },
    /*typed_data.Int32x4.zwyy*/get zwyy() {
      return 94;
    },
    /*typed_data.Int32x4.zwyz*/get zwyz() {
      return 158;
    },
    /*typed_data.Int32x4.zwyw*/get zwyw() {
      return 222;
    },
    /*typed_data.Int32x4.zwzx*/get zwzx() {
      return 46;
    },
    /*typed_data.Int32x4.zwzy*/get zwzy() {
      return 110;
    },
    /*typed_data.Int32x4.zwzz*/get zwzz() {
      return 174;
    },
    /*typed_data.Int32x4.zwzw*/get zwzw() {
      return 238;
    },
    /*typed_data.Int32x4.zwwx*/get zwwx() {
      return 62;
    },
    /*typed_data.Int32x4.zwwy*/get zwwy() {
      return 126;
    },
    /*typed_data.Int32x4.zwwz*/get zwwz() {
      return 190;
    },
    /*typed_data.Int32x4.zwww*/get zwww() {
      return 254;
    },
    /*typed_data.Int32x4.wxxx*/get wxxx() {
      return 3;
    },
    /*typed_data.Int32x4.wxxy*/get wxxy() {
      return 67;
    },
    /*typed_data.Int32x4.wxxz*/get wxxz() {
      return 131;
    },
    /*typed_data.Int32x4.wxxw*/get wxxw() {
      return 195;
    },
    /*typed_data.Int32x4.wxyx*/get wxyx() {
      return 19;
    },
    /*typed_data.Int32x4.wxyy*/get wxyy() {
      return 83;
    },
    /*typed_data.Int32x4.wxyz*/get wxyz() {
      return 147;
    },
    /*typed_data.Int32x4.wxyw*/get wxyw() {
      return 211;
    },
    /*typed_data.Int32x4.wxzx*/get wxzx() {
      return 35;
    },
    /*typed_data.Int32x4.wxzy*/get wxzy() {
      return 99;
    },
    /*typed_data.Int32x4.wxzz*/get wxzz() {
      return 163;
    },
    /*typed_data.Int32x4.wxzw*/get wxzw() {
      return 227;
    },
    /*typed_data.Int32x4.wxwx*/get wxwx() {
      return 51;
    },
    /*typed_data.Int32x4.wxwy*/get wxwy() {
      return 115;
    },
    /*typed_data.Int32x4.wxwz*/get wxwz() {
      return 179;
    },
    /*typed_data.Int32x4.wxww*/get wxww() {
      return 243;
    },
    /*typed_data.Int32x4.wyxx*/get wyxx() {
      return 7;
    },
    /*typed_data.Int32x4.wyxy*/get wyxy() {
      return 71;
    },
    /*typed_data.Int32x4.wyxz*/get wyxz() {
      return 135;
    },
    /*typed_data.Int32x4.wyxw*/get wyxw() {
      return 199;
    },
    /*typed_data.Int32x4.wyyx*/get wyyx() {
      return 23;
    },
    /*typed_data.Int32x4.wyyy*/get wyyy() {
      return 87;
    },
    /*typed_data.Int32x4.wyyz*/get wyyz() {
      return 151;
    },
    /*typed_data.Int32x4.wyyw*/get wyyw() {
      return 215;
    },
    /*typed_data.Int32x4.wyzx*/get wyzx() {
      return 39;
    },
    /*typed_data.Int32x4.wyzy*/get wyzy() {
      return 103;
    },
    /*typed_data.Int32x4.wyzz*/get wyzz() {
      return 167;
    },
    /*typed_data.Int32x4.wyzw*/get wyzw() {
      return 231;
    },
    /*typed_data.Int32x4.wywx*/get wywx() {
      return 55;
    },
    /*typed_data.Int32x4.wywy*/get wywy() {
      return 119;
    },
    /*typed_data.Int32x4.wywz*/get wywz() {
      return 183;
    },
    /*typed_data.Int32x4.wyww*/get wyww() {
      return 247;
    },
    /*typed_data.Int32x4.wzxx*/get wzxx() {
      return 11;
    },
    /*typed_data.Int32x4.wzxy*/get wzxy() {
      return 75;
    },
    /*typed_data.Int32x4.wzxz*/get wzxz() {
      return 139;
    },
    /*typed_data.Int32x4.wzxw*/get wzxw() {
      return 203;
    },
    /*typed_data.Int32x4.wzyx*/get wzyx() {
      return 27;
    },
    /*typed_data.Int32x4.wzyy*/get wzyy() {
      return 91;
    },
    /*typed_data.Int32x4.wzyz*/get wzyz() {
      return 155;
    },
    /*typed_data.Int32x4.wzyw*/get wzyw() {
      return 219;
    },
    /*typed_data.Int32x4.wzzx*/get wzzx() {
      return 43;
    },
    /*typed_data.Int32x4.wzzy*/get wzzy() {
      return 107;
    },
    /*typed_data.Int32x4.wzzz*/get wzzz() {
      return 171;
    },
    /*typed_data.Int32x4.wzzw*/get wzzw() {
      return 235;
    },
    /*typed_data.Int32x4.wzwx*/get wzwx() {
      return 59;
    },
    /*typed_data.Int32x4.wzwy*/get wzwy() {
      return 123;
    },
    /*typed_data.Int32x4.wzwz*/get wzwz() {
      return 187;
    },
    /*typed_data.Int32x4.wzww*/get wzww() {
      return 251;
    },
    /*typed_data.Int32x4.wwxx*/get wwxx() {
      return 15;
    },
    /*typed_data.Int32x4.wwxy*/get wwxy() {
      return 79;
    },
    /*typed_data.Int32x4.wwxz*/get wwxz() {
      return 143;
    },
    /*typed_data.Int32x4.wwxw*/get wwxw() {
      return 207;
    },
    /*typed_data.Int32x4.wwyx*/get wwyx() {
      return 31;
    },
    /*typed_data.Int32x4.wwyy*/get wwyy() {
      return 95;
    },
    /*typed_data.Int32x4.wwyz*/get wwyz() {
      return 159;
    },
    /*typed_data.Int32x4.wwyw*/get wwyw() {
      return 223;
    },
    /*typed_data.Int32x4.wwzx*/get wwzx() {
      return 47;
    },
    /*typed_data.Int32x4.wwzy*/get wwzy() {
      return 111;
    },
    /*typed_data.Int32x4.wwzz*/get wwzz() {
      return 175;
    },
    /*typed_data.Int32x4.wwzw*/get wwzw() {
      return 239;
    },
    /*typed_data.Int32x4.wwwx*/get wwwx() {
      return 63;
    },
    /*typed_data.Int32x4.wwwy*/get wwwy() {
      return 127;
    },
    /*typed_data.Int32x4.wwwz*/get wwwz() {
      return 191;
    },
    /*typed_data.Int32x4.wwww*/get wwww() {
      return 255;
    }
  }, false);
  typed_data.Float64x2 = class Float64x2 extends core.Object {
    static ['_#new#tearOff'](x, y) {
      if (x == null) dart.nullFailed(I[163], 183, 28, "x");
      if (y == null) dart.nullFailed(I[163], 183, 38, "y");
      return new _native_typed_data.NativeFloat64x2.new(x, y);
    }
    static ['_#splat#tearOff'](v) {
      if (v == null) dart.nullFailed(I[163], 185, 34, "v");
      return new _native_typed_data.NativeFloat64x2.splat(v);
    }
    static ['_#zero#tearOff']() {
      return new _native_typed_data.NativeFloat64x2.zero();
    }
    static ['_#fromFloat32x4#tearOff'](v) {
      if (v == null) dart.nullFailed(I[163], 189, 45, "v");
      return new _native_typed_data.NativeFloat64x2.fromFloat32x4(v);
    }
  };
  (typed_data.Float64x2[dart.mixinNew] = function() {
  }).prototype = typed_data.Float64x2.prototype;
  dart.addRtiResources(typed_data.Float64x2, ["typed_data|Float64x2"]);
  dart.setStaticMethodSignature(typed_data.Float64x2, () => ['new', 'splat', 'zero', 'fromFloat32x4']);
  dart.setLibraryUri(typed_data.Float64x2, I[43]);
  indexed_db._KeyRangeFactoryProvider = class _KeyRangeFactoryProvider extends core.Object {
    static createKeyRange_only(value) {
      return indexed_db._KeyRangeFactoryProvider._only(indexed_db._KeyRangeFactoryProvider._class(), indexed_db._KeyRangeFactoryProvider._translateKey(value));
    }
    static createKeyRange_lowerBound(bound, open = false) {
      if (open == null) dart.nullFailed(I[164], 94, 17, "open");
      return indexed_db._KeyRangeFactoryProvider._lowerBound(indexed_db._KeyRangeFactoryProvider._class(), indexed_db._KeyRangeFactoryProvider._translateKey(bound), open);
    }
    static createKeyRange_upperBound(bound, open = false) {
      if (open == null) dart.nullFailed(I[164], 98, 17, "open");
      return indexed_db._KeyRangeFactoryProvider._upperBound(indexed_db._KeyRangeFactoryProvider._class(), indexed_db._KeyRangeFactoryProvider._translateKey(bound), open);
    }
    static createKeyRange_bound(lower, upper, lowerOpen = false, upperOpen = false) {
      if (lowerOpen == null) dart.nullFailed(I[164], 102, 17, "lowerOpen");
      if (upperOpen == null) dart.nullFailed(I[164], 102, 41, "upperOpen");
      return indexed_db._KeyRangeFactoryProvider._bound(indexed_db._KeyRangeFactoryProvider._class(), indexed_db._KeyRangeFactoryProvider._translateKey(lower), indexed_db._KeyRangeFactoryProvider._translateKey(upper), lowerOpen, upperOpen);
    }
    static _class() {
      if (indexed_db._KeyRangeFactoryProvider._cachedClass != null) return indexed_db._KeyRangeFactoryProvider._cachedClass;
      return indexed_db._KeyRangeFactoryProvider._cachedClass = indexed_db._KeyRangeFactoryProvider._uncachedClass();
    }
    static _uncachedClass() {
      return window.webkitIDBKeyRange || window.mozIDBKeyRange || window.msIDBKeyRange || window.IDBKeyRange;
    }
    static _translateKey(idbkey) {
      return idbkey;
    }
    static _only(cls, value) {
      return cls.only(value);
    }
    static _lowerBound(cls, bound, open) {
      return cls.lowerBound(bound, open);
    }
    static _upperBound(cls, bound, open) {
      return cls.upperBound(bound, open);
    }
    static _bound(cls, lower, upper, lowerOpen, upperOpen) {
      return cls.bound(lower, upper, lowerOpen, upperOpen);
    }
    static ['_#new#tearOff']() {
      return new indexed_db._KeyRangeFactoryProvider.new();
    }
  };
  (indexed_db._KeyRangeFactoryProvider.new = function() {
    ;
  }).prototype = indexed_db._KeyRangeFactoryProvider.prototype;
  dart.addRtiResources(indexed_db._KeyRangeFactoryProvider, ["indexed_db|_KeyRangeFactoryProvider"]);
  dart.setStaticMethodSignature(indexed_db._KeyRangeFactoryProvider, () => ['createKeyRange_only', 'createKeyRange_lowerBound', 'createKeyRange_upperBound', 'createKeyRange_bound', '_class', '_uncachedClass', '_translateKey', '_only', '_lowerBound', '_upperBound', '_bound']);
  dart.setLibraryUri(indexed_db._KeyRangeFactoryProvider, I[165]);
  dart.setStaticFieldSignature(indexed_db._KeyRangeFactoryProvider, () => ['_cachedClass']);
  dart.defineLazy(indexed_db._KeyRangeFactoryProvider, {
    /*indexed_db._KeyRangeFactoryProvider._cachedClass*/get _cachedClass() {
      return null;
    },
    set _cachedClass(value) {}
  }, false);
  indexed_db.Cursor = class Cursor extends _interceptors.JavaScriptObject {
    [S.$delete]() {
      try {
        return indexed_db._completeRequest(T$.dynamic(), this[S._delete$1]());
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return async.Future.error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [$update](value) {
      try {
        return indexed_db._completeRequest(T$.dynamic(), this[S._update](value));
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return async.Future.error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$next](key = null) {
      if (key == null) {
        this.continue();
      } else {
        this.continue(key);
      }
    }
    static ['_#_#tearOff']() {
      return indexed_db.Cursor.__();
    }
    get [S.$direction]() {
      return this.direction;
    }
    get [S.$key]() {
      return this.key;
    }
    get [S.$primaryKey]() {
      return this.primaryKey;
    }
    get [S.$source]() {
      return this.source;
    }
    [S.$advance](...args) {
      return this.advance.apply(this, args);
    }
    [S.$continuePrimaryKey](...args) {
      return this.continuePrimaryKey.apply(this, args);
    }
    [S._delete$1](...args) {
      return this.delete.apply(this, args);
    }
    [S._update](value) {
      let value_1 = html_common.convertDartToNative_SerializedScriptValue(value);
      return this[S._update_1](value_1);
    }
    [S._update_1](...args) {
      return this.update.apply(this, args);
    }
  };
  dart.addRtiResources(indexed_db.Cursor, ["indexed_db|Cursor"]);
  dart.setMethodSignature(indexed_db.Cursor, () => dart.global.Object.setPrototypeOf({
    [S.$delete]: T$.VoidToFuture(),
    [$update]: T$.dynamicToFuture(),
    [S.$next]: T$0.ObjectNTovoid$1(),
    [S.$advance]: T$.intTovoid(),
    [S.$continuePrimaryKey]: T$3.ObjectAndObjectTovoid(),
    [S._delete$1]: T$3.VoidToRequest(),
    [S._update]: T$3.dynamicToRequest(),
    [S._update_1]: T$3.dynamicToRequest()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(indexed_db.Cursor))));
  dart.setStaticMethodSignature(indexed_db.Cursor, () => ['__']);
  dart.setGetterSignature(indexed_db.Cursor, () => dart.global.Object.setPrototypeOf({
    [S.$direction]: T$.StringN(),
    [S.$key]: T$.ObjectN(),
    [S.$primaryKey]: T$.ObjectN(),
    [S.$source]: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.Cursor))));
  dart.setLibraryUri(indexed_db.Cursor, I[165]);
  dart.registerExtension("IDBCursor", indexed_db.Cursor);
  indexed_db.CursorWithValue = class CursorWithValue extends indexed_db.Cursor {
    static ['_#_#tearOff']() {
      return indexed_db.CursorWithValue.__();
    }
    get [S.$value]() {
      return indexed_db._convertNativeToDart_IDBAny(this[S._get_value]);
    }
    get [S._get_value]() {
      return this.value;
    }
  };
  dart.addRtiResources(indexed_db.CursorWithValue, ["indexed_db|CursorWithValue"]);
  dart.setStaticMethodSignature(indexed_db.CursorWithValue, () => ['__']);
  dart.setGetterSignature(indexed_db.CursorWithValue, () => dart.global.Object.setPrototypeOf({
    [S.$value]: T$.dynamic(),
    [S._get_value]: T$.dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.CursorWithValue))));
  dart.setLibraryUri(indexed_db.CursorWithValue, I[165]);
  dart.registerExtension("IDBCursorWithValue", indexed_db.CursorWithValue);
  html$.EventTarget = class EventTarget extends _interceptors.JavaScriptObject {
    static ['_#_created#tearOff']() {
      return new html$.EventTarget._created();
    }
    get [S.$on]() {
      return new html$.Events.new(this);
    }
    [S.$addEventListener](type, listener, useCapture = null) {
      if (type == null) dart.nullFailed(I[166], 15840, 32, "type");
      if (listener != null) {
        this[S._addEventListener](type, listener, useCapture);
      }
    }
    [S.$removeEventListener](type, listener, useCapture = null) {
      if (type == null) dart.nullFailed(I[166], 15850, 35, "type");
      if (listener != null) {
        this[S._removeEventListener](type, listener, useCapture);
      }
    }
    static ['_#_#tearOff']() {
      return html$.EventTarget.__();
    }
    [S._addEventListener](...args) {
      return this.addEventListener.apply(this, args);
    }
    [S.$dispatchEvent](...args) {
      return this.dispatchEvent.apply(this, args);
    }
    [S._removeEventListener](...args) {
      return this.removeEventListener.apply(this, args);
    }
  };
  (html$.EventTarget._created = function() {
    dart.global.Object.getPrototypeOf(html$.EventTarget).new.call(this);
    ;
  }).prototype = html$.EventTarget.prototype;
  dart.addRtiResources(html$.EventTarget, ["html|EventTarget"]);
  dart.setMethodSignature(html$.EventTarget, () => dart.global.Object.setPrototypeOf({
    [S.$addEventListener]: T$3.StringAndFnAndboolNTovoid(),
    [S.$removeEventListener]: T$3.StringAndFnAndboolNTovoid(),
    [S._addEventListener]: T$3.StringAndFnAndboolNTovoid(),
    [S.$dispatchEvent]: T$3.EventTobool(),
    [S._removeEventListener]: T$3.StringAndFnAndboolNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.EventTarget))));
  dart.setStaticMethodSignature(html$.EventTarget, () => ['__']);
  dart.setGetterSignature(html$.EventTarget, () => dart.global.Object.setPrototypeOf({[S.$on]: T$3.Events()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.EventTarget))));
  dart.setLibraryUri(html$.EventTarget, I[167]);
  dart.registerExtension("EventTarget", html$.EventTarget);
  indexed_db.Database = class Database extends html$.EventTarget {
    [S.$createObjectStore](name, opts) {
      if (name == null) dart.nullFailed(I[164], 301, 40, "name");
      let keyPath = opts && 'keyPath' in opts ? opts.keyPath : null;
      let autoIncrement = opts && 'autoIncrement' in opts ? opts.autoIncrement : null;
      let options = new _js_helper.LinkedMap.new();
      if (keyPath != null) {
        options[$_set]("keyPath", keyPath);
      }
      if (autoIncrement != null) {
        options[$_set]("autoIncrement", autoIncrement);
      }
      return this[S._createObjectStore](name, options);
    }
    [S.$transaction](storeName_OR_storeNames, mode) {
      if (mode == null) dart.nullFailed(I[164], 313, 59, "mode");
      if (mode !== "readonly" && mode !== "readwrite") {
        dart.throw(new core.ArgumentError.new(mode));
      }
      return this[S._transaction](storeName_OR_storeNames, mode);
    }
    [S.$transactionStore](storeName, mode) {
      if (storeName == null) dart.nullFailed(I[164], 327, 39, "storeName");
      if (mode == null) dart.nullFailed(I[164], 327, 57, "mode");
      if (mode !== "readonly" && mode !== "readwrite") {
        dart.throw(new core.ArgumentError.new(mode));
      }
      return this[S._transaction](storeName, mode);
    }
    [S.$transactionList](storeNames, mode) {
      if (storeNames == null) dart.nullFailed(I[164], 337, 44, "storeNames");
      if (mode == null) dart.nullFailed(I[164], 337, 63, "mode");
      if (mode !== "readonly" && mode !== "readwrite") {
        dart.throw(new core.ArgumentError.new(mode));
      }
      let storeNames_1 = html_common.convertDartToNative_StringArray(storeNames);
      return this[S._transaction](storeNames_1, mode);
    }
    [S.$transactionStores](storeNames, mode) {
      if (storeNames == null) dart.nullFailed(I[164], 345, 47, "storeNames");
      if (mode == null) dart.nullFailed(I[164], 345, 66, "mode");
      if (mode !== "readonly" && mode !== "readwrite") {
        dart.throw(new core.ArgumentError.new(mode));
      }
      return this[S._transaction](storeNames, mode);
    }
    [S._transaction](...args) {
      return this.transaction.apply(this, args);
    }
    static ['_#_#tearOff']() {
      return indexed_db.Database.__();
    }
    get [$name]() {
      return this.name;
    }
    get [S.$objectStoreNames]() {
      return this.objectStoreNames;
    }
    get [S.$version]() {
      return this.version;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S._createObjectStore](name, options = null) {
      if (name == null) dart.nullFailed(I[164], 408, 41, "name");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return this[S._createObjectStore_1](name, options_1);
      }
      return this[S._createObjectStore_2](name);
    }
    [S._createObjectStore_1](...args) {
      return this.createObjectStore.apply(this, args);
    }
    [S._createObjectStore_2](...args) {
      return this.createObjectStore.apply(this, args);
    }
    [S.$deleteObjectStore](...args) {
      return this.deleteObjectStore.apply(this, args);
    }
    get [S.$onAbort]() {
      return indexed_db.Database.abortEvent.forTarget(this);
    }
    get [S.$onClose]() {
      return indexed_db.Database.closeEvent.forTarget(this);
    }
    get [S.$onError]() {
      return indexed_db.Database.errorEvent.forTarget(this);
    }
    get [S.$onVersionChange]() {
      return indexed_db.Database.versionChangeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(indexed_db.Database, ["indexed_db|Database"]);
  dart.setMethodSignature(indexed_db.Database, () => dart.global.Object.setPrototypeOf({
    [S.$createObjectStore]: T$3.String__ToObjectStore(),
    [S.$transaction]: T$3.dynamicAndStringToTransaction(),
    [S.$transactionStore]: T$3.StringAndStringToTransaction(),
    [S.$transactionList]: T$3.ListOfStringAndStringToTransaction(),
    [S.$transactionStores]: T$3.DomStringListAndStringToTransaction(),
    [S._transaction]: T$3.dynamicAnddynamicToTransaction(),
    [S.$close]: T$.VoidTovoid(),
    [S._createObjectStore]: T$3.StringAndMapNToObjectStore(),
    [S._createObjectStore_1]: T$3.dynamicAnddynamicToObjectStore(),
    [S._createObjectStore_2]: T$3.dynamicToObjectStore(),
    [S.$deleteObjectStore]: T$.StringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(indexed_db.Database))));
  dart.setStaticMethodSignature(indexed_db.Database, () => ['__']);
  dart.setGetterSignature(indexed_db.Database, () => dart.global.Object.setPrototypeOf({
    [$name]: T$.StringN(),
    [S.$objectStoreNames]: T$.ListNOfString(),
    [S.$version]: T$.intN(),
    [S.$onAbort]: T$3.StreamOfEvent(),
    [S.$onClose]: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S.$onVersionChange]: T$3.StreamOfVersionChangeEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.Database))));
  dart.setLibraryUri(indexed_db.Database, I[165]);
  dart.setStaticFieldSignature(indexed_db.Database, () => ['abortEvent', 'closeEvent', 'errorEvent', 'versionChangeEvent']);
  dart.defineLazy(indexed_db.Database, {
    /*indexed_db.Database.abortEvent*/get abortEvent() {
      return C[265] || CT.C265;
    },
    /*indexed_db.Database.closeEvent*/get closeEvent() {
      return C[266] || CT.C266;
    },
    /*indexed_db.Database.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*indexed_db.Database.versionChangeEvent*/get versionChangeEvent() {
      return C[268] || CT.C268;
    }
  }, false);
  dart.registerExtension("IDBDatabase", indexed_db.Database);
  indexed_db.IdbFactory = class IdbFactory extends _interceptors.JavaScriptObject {
    static get supported() {
      return !!(window.indexedDB || window.webkitIndexedDB || window.mozIndexedDB);
    }
    [S.$open](name, opts) {
      if (name == null) dart.nullFailed(I[164], 464, 32, "name");
      let version = opts && 'version' in opts ? opts.version : null;
      let onUpgradeNeeded = opts && 'onUpgradeNeeded' in opts ? opts.onUpgradeNeeded : null;
      let onBlocked = opts && 'onBlocked' in opts ? opts.onBlocked : null;
      if (version == null !== (onUpgradeNeeded == null)) {
        return G.FutureOfDatabase().error(new core.ArgumentError.new("version and onUpgradeNeeded must be specified together"));
      }
      try {
        let request = null;
        if (version != null) {
          request = this[S._open](name, version);
        } else {
          request = this[S._open](name);
        }
        if (onUpgradeNeeded != null) {
          request[S.$onUpgradeNeeded].listen(onUpgradeNeeded);
        }
        if (onBlocked != null) {
          request[S.$onBlocked].listen(onBlocked);
        }
        return indexed_db._completeRequest(T$3.Database(), request);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return G.FutureOfDatabase().error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$deleteDatabase](name, opts) {
      if (name == null) dart.nullFailed(I[164], 492, 44, "name");
      let onBlocked = opts && 'onBlocked' in opts ? opts.onBlocked : null;
      try {
        let request = this[S._deleteDatabase](name);
        if (onBlocked != null) {
          request[S.$onBlocked].listen(onBlocked);
        }
        let completer = G.CompleterOfIdbFactory().sync();
        request[S.$onSuccess].listen(dart.fn(e => {
          if (e == null) dart.nullFailed(I[164], 500, 33, "e");
          completer.complete(this);
        }, T$3.EventTovoid()));
        request[S.$onError].listen(dart.bind(completer, 'completeError'));
        return completer.future;
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return G.FutureOfIdbFactory().error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    get [S.$supportsDatabaseNames]() {
      return false;
    }
    static ['_#_#tearOff']() {
      return indexed_db.IdbFactory.__();
    }
    [S.$cmp](...args) {
      return this.cmp.apply(this, args);
    }
    [S._deleteDatabase](...args) {
      return this.deleteDatabase.apply(this, args);
    }
    [S._open](...args) {
      return this.open.apply(this, args);
    }
  };
  dart.addRtiResources(indexed_db.IdbFactory, ["indexed_db|IdbFactory"]);
  dart.setMethodSignature(indexed_db.IdbFactory, () => dart.global.Object.setPrototypeOf({
    [S.$open]: T$3.String__ToFutureOfDatabase(),
    [S.$deleteDatabase]: T$3.String__ToFutureOfIdbFactory(),
    [S.$cmp]: T$3.ObjectAndObjectToint(),
    [S._deleteDatabase]: T$3.StringToOpenDBRequest(),
    [S._open]: T$3.StringAndintNToOpenDBRequest()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(indexed_db.IdbFactory))));
  dart.setStaticMethodSignature(indexed_db.IdbFactory, () => ['__']);
  dart.setGetterSignature(indexed_db.IdbFactory, () => dart.global.Object.setPrototypeOf({[S.$supportsDatabaseNames]: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.IdbFactory))));
  dart.setStaticGetterSignature(indexed_db.IdbFactory, () => ['supported']);
  dart.setLibraryUri(indexed_db.IdbFactory, I[165]);
  dart.registerExtension("IDBFactory", indexed_db.IdbFactory);
  indexed_db.Index = class Index extends _interceptors.JavaScriptObject {
    [S.$count](key_OR_range = null) {
      try {
        let request = this[S._count$2](key_OR_range);
        return indexed_db._completeRequest(T$.int(), request);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return G.FutureOfint().error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$get](key) {
      try {
        let request = this[S._get](T$.Object()[_as](key));
        return indexed_db._completeRequest(T$.dynamic(), request);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return async.Future.error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$getKey](key) {
      try {
        let request = this[S._getKey](T$.Object()[_as](key));
        return indexed_db._completeRequest(T$.dynamic(), request);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return async.Future.error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$openCursor](opts) {
      let key = opts && 'key' in opts ? opts.key : null;
      let range = opts && 'range' in opts ? opts.range : null;
      let direction = opts && 'direction' in opts ? opts.direction : null;
      let autoAdvance = opts && 'autoAdvance' in opts ? opts.autoAdvance : null;
      let key_OR_range = null;
      if (key != null) {
        if (range != null) {
          dart.throw(new core.ArgumentError.new("Cannot specify both key and range."));
        }
        key_OR_range = key;
      } else {
        key_OR_range = range;
      }
      let request = null;
      if (direction == null) {
        request = this[S._openCursor](key_OR_range, "next");
      } else {
        request = this[S._openCursor](key_OR_range, direction);
      }
      return indexed_db.ObjectStore._cursorStreamFromResult(T$3.CursorWithValue(), T$3.Request()[_as](request), autoAdvance);
    }
    [S.$openKeyCursor](opts) {
      let key = opts && 'key' in opts ? opts.key : null;
      let range = opts && 'range' in opts ? opts.range : null;
      let direction = opts && 'direction' in opts ? opts.direction : null;
      let autoAdvance = opts && 'autoAdvance' in opts ? opts.autoAdvance : null;
      let key_OR_range = null;
      if (key != null) {
        if (range != null) {
          dart.throw(new core.ArgumentError.new("Cannot specify both key and range."));
        }
        key_OR_range = key;
      } else {
        key_OR_range = range;
      }
      let request = null;
      if (direction == null) {
        request = this[S._openKeyCursor](key_OR_range, "next");
      } else {
        request = this[S._openKeyCursor](key_OR_range, direction);
      }
      return indexed_db.ObjectStore._cursorStreamFromResult(T$3.Cursor(), T$3.Request()[_as](request), autoAdvance);
    }
    static ['_#_#tearOff']() {
      return indexed_db.Index.__();
    }
    get [S.$keyPath]() {
      return this.keyPath;
    }
    get [S.$multiEntry]() {
      return this.multiEntry;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S.$objectStore]() {
      return this.objectStore;
    }
    get [S.$unique]() {
      return this.unique;
    }
    [S._count$2](...args) {
      return this.count.apply(this, args);
    }
    [S._get](...args) {
      return this.get.apply(this, args);
    }
    [S.$getAll](...args) {
      return this.getAll.apply(this, args);
    }
    [S.$getAllKeys](...args) {
      return this.getAllKeys.apply(this, args);
    }
    [S._getKey](...args) {
      return this.getKey.apply(this, args);
    }
    [S._openCursor](...args) {
      return this.openCursor.apply(this, args);
    }
    [S._openKeyCursor](...args) {
      return this.openKeyCursor.apply(this, args);
    }
  };
  dart.addRtiResources(indexed_db.Index, ["indexed_db|Index"]);
  dart.setMethodSignature(indexed_db.Index, () => dart.global.Object.setPrototypeOf({
    [S.$count]: T$3.dynamicToFutureOfint(),
    [S.$get]: T$.dynamicToFuture(),
    [S.$getKey]: T$.dynamicToFuture(),
    [S.$openCursor]: T$3.__ToStreamOfCursorWithValue(),
    [S.$openKeyCursor]: T$3.__ToStreamOfCursor(),
    [S._count$2]: T$3.ObjectNToRequest(),
    [S._get]: T$3.ObjectToRequest(),
    [S.$getAll]: T$3.ObjectNAndintNToRequest(),
    [S.$getAllKeys]: T$3.ObjectNAndintNToRequest(),
    [S._getKey]: T$3.ObjectToRequest(),
    [S._openCursor]: T$3.ObjectNAndStringNToRequest(),
    [S._openKeyCursor]: T$3.ObjectNAndStringNToRequest()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(indexed_db.Index))));
  dart.setStaticMethodSignature(indexed_db.Index, () => ['__']);
  dart.setGetterSignature(indexed_db.Index, () => dart.global.Object.setPrototypeOf({
    [S.$keyPath]: T$.ObjectN(),
    [S.$multiEntry]: T$.boolN(),
    [$name]: T$.StringN(),
    [S.$objectStore]: T$3.ObjectStoreN(),
    [S.$unique]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.Index))));
  dart.setSetterSignature(indexed_db.Index, () => dart.global.Object.setPrototypeOf({[$name]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(indexed_db.Index))));
  dart.setLibraryUri(indexed_db.Index, I[165]);
  dart.registerExtension("IDBIndex", indexed_db.Index);
  indexed_db.KeyRange = class KeyRange extends _interceptors.JavaScriptObject {
    static only(value) {
      return indexed_db._KeyRangeFactoryProvider.createKeyRange_only(value);
    }
    static ['_#only#tearOff'](value) {
      return indexed_db.KeyRange.only(value);
    }
    static lowerBound(bound, open = false) {
      if (open == null) dart.nullFailed(I[164], 700, 52, "open");
      return indexed_db._KeyRangeFactoryProvider.createKeyRange_lowerBound(bound, open);
    }
    static ['_#lowerBound#tearOff'](bound, open = false) {
      if (open == null) dart.nullFailed(I[164], 700, 52, "open");
      return indexed_db.KeyRange.lowerBound(bound, open);
    }
    static upperBound(bound, open = false) {
      if (open == null) dart.nullFailed(I[164], 703, 52, "open");
      return indexed_db._KeyRangeFactoryProvider.createKeyRange_upperBound(bound, open);
    }
    static ['_#upperBound#tearOff'](bound, open = false) {
      if (open == null) dart.nullFailed(I[164], 703, 52, "open");
      return indexed_db.KeyRange.upperBound(bound, open);
    }
    static bound(lower, upper, lowerOpen = false, upperOpen = false) {
      if (lowerOpen == null) dart.nullFailed(I[164], 707, 17, "lowerOpen");
      if (upperOpen == null) dart.nullFailed(I[164], 707, 41, "upperOpen");
      return indexed_db._KeyRangeFactoryProvider.createKeyRange_bound(lower, upper, lowerOpen, upperOpen);
    }
    static ['_#bound#tearOff'](lower, upper, lowerOpen = false, upperOpen = false) {
      if (lowerOpen == null) dart.nullFailed(I[164], 707, 17, "lowerOpen");
      if (upperOpen == null) dart.nullFailed(I[164], 707, 41, "upperOpen");
      return indexed_db.KeyRange.bound(lower, upper, lowerOpen, upperOpen);
    }
    static ['_#_#tearOff']() {
      return indexed_db.KeyRange.__();
    }
    get [S.$lower]() {
      return this.lower;
    }
    get [S.$lowerOpen]() {
      return this.lowerOpen;
    }
    get [S.$upper]() {
      return this.upper;
    }
    get [S.$upperOpen]() {
      return this.upperOpen;
    }
    [S.$includes](...args) {
      return this.includes.apply(this, args);
    }
  };
  dart.addRtiResources(indexed_db.KeyRange, ["indexed_db|KeyRange"]);
  dart.setMethodSignature(indexed_db.KeyRange, () => dart.global.Object.setPrototypeOf({[S.$includes]: T$.ObjectTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(indexed_db.KeyRange))));
  dart.setStaticMethodSignature(indexed_db.KeyRange, () => ['only', 'lowerBound', 'upperBound', 'bound', '__', 'bound__', 'lowerBound__', 'only__', 'upperBound__']);
  dart.setGetterSignature(indexed_db.KeyRange, () => dart.global.Object.setPrototypeOf({
    [S.$lower]: T$.ObjectN(),
    [S.$lowerOpen]: T$.boolN(),
    [S.$upper]: T$.ObjectN(),
    [S.$upperOpen]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.KeyRange))));
  dart.setLibraryUri(indexed_db.KeyRange, I[165]);
  dart.registerExtension("IDBKeyRange", indexed_db.KeyRange);
  indexed_db.ObjectStore = class ObjectStore extends _interceptors.JavaScriptObject {
    [$add](value, key = null) {
      try {
        let request = null;
        if (key != null) {
          request = this[S._add$3](value, key);
        } else {
          request = this[S._add$3](value);
        }
        return indexed_db._completeRequest(T$.dynamic(), T$3.Request()[_as](request));
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return async.Future.error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [$clear]() {
      try {
        return indexed_db._completeRequest(T$.dynamic(), this[S._clear$2]());
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return async.Future.error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$delete](key_OR_keyRange) {
      try {
        return indexed_db._completeRequest(T$.dynamic(), this[S._delete$1](T$.Object()[_as](key_OR_keyRange)));
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return async.Future.error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$count](key_OR_range = null) {
      try {
        let request = this[S._count$2](key_OR_range);
        return indexed_db._completeRequest(T$.int(), request);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return G.FutureOfint().error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$put](value, key = null) {
      try {
        let request = null;
        if (key != null) {
          request = this[S._put](value, key);
        } else {
          request = this[S._put](value);
        }
        return indexed_db._completeRequest(T$.dynamic(), T$3.Request()[_as](request));
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return async.Future.error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$getObject](key) {
      try {
        let request = this[S._get](T$.Object()[_as](key));
        return indexed_db._completeRequest(T$.dynamic(), request);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          return async.Future.error(e, stacktrace);
        } else
          throw t$36$35e;
      }
    }
    [S.$openCursor](opts) {
      let key = opts && 'key' in opts ? opts.key : null;
      let range = opts && 'range' in opts ? opts.range : null;
      let direction = opts && 'direction' in opts ? opts.direction : null;
      let autoAdvance = opts && 'autoAdvance' in opts ? opts.autoAdvance : null;
      let key_OR_range = null;
      if (key != null) {
        if (range != null) {
          dart.throw(new core.ArgumentError.new("Cannot specify both key and range."));
        }
        key_OR_range = key;
      } else {
        key_OR_range = range;
      }
      let request = null;
      if (direction == null) {
        request = this[S._openCursor](key_OR_range);
      } else {
        request = this[S._openCursor](key_OR_range, direction);
      }
      return indexed_db.ObjectStore._cursorStreamFromResult(T$3.CursorWithValue(), T$3.Request()[_as](request), autoAdvance);
    }
    [S.$createIndex](name, keyPath, opts) {
      if (name == null) dart.nullFailed(I[164], 854, 28, "name");
      let unique = opts && 'unique' in opts ? opts.unique : null;
      let multiEntry = opts && 'multiEntry' in opts ? opts.multiEntry : null;
      let options = new _js_helper.LinkedMap.new();
      if (unique != null) {
        options[$_set]("unique", unique);
      }
      if (multiEntry != null) {
        options[$_set]("multiEntry", multiEntry);
      }
      return this[S._createIndex](name, T$.Object()[_as](keyPath), options);
    }
    static ['_#_#tearOff']() {
      return indexed_db.ObjectStore.__();
    }
    get [S.$autoIncrement]() {
      return this.autoIncrement;
    }
    get [S.$indexNames]() {
      return this.indexNames;
    }
    get [S.$keyPath]() {
      return this.keyPath;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S.$transaction]() {
      return this.transaction;
    }
    [S._add$3](value, key = null) {
      if (key != null) {
        let value_1 = html_common.convertDartToNative_SerializedScriptValue(value);
        let key_2 = html_common.convertDartToNative_SerializedScriptValue(key);
        return this[S._add_1](value_1, key_2);
      }
      let value_1 = html_common.convertDartToNative_SerializedScriptValue(value);
      return this[S._add_2](value_1);
    }
    [S._add_1](...args) {
      return this.add.apply(this, args);
    }
    [S._add_2](...args) {
      return this.add.apply(this, args);
    }
    [S._clear$2](...args) {
      return this.clear.apply(this, args);
    }
    [S._count$2](...args) {
      return this.count.apply(this, args);
    }
    [S._createIndex](name, keyPath, options = null) {
      if (name == null) dart.nullFailed(I[164], 916, 29, "name");
      if (keyPath == null) dart.nullFailed(I[164], 916, 42, "keyPath");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return this[S._createIndex_1](name, keyPath, options_1);
      }
      return this[S._createIndex_2](name, keyPath);
    }
    [S._createIndex_1](...args) {
      return this.createIndex.apply(this, args);
    }
    [S._createIndex_2](...args) {
      return this.createIndex.apply(this, args);
    }
    [S._delete$1](...args) {
      return this.delete.apply(this, args);
    }
    [S.$deleteIndex](...args) {
      return this.deleteIndex.apply(this, args);
    }
    [S._get](...args) {
      return this.get.apply(this, args);
    }
    [S.$getAll](...args) {
      return this.getAll.apply(this, args);
    }
    [S.$getAllKeys](...args) {
      return this.getAllKeys.apply(this, args);
    }
    [S.$getKey](...args) {
      return this.getKey.apply(this, args);
    }
    [S.$index](...args) {
      return this.index.apply(this, args);
    }
    [S._openCursor](...args) {
      return this.openCursor.apply(this, args);
    }
    [S.$openKeyCursor](...args) {
      return this.openKeyCursor.apply(this, args);
    }
    [S._put](value, key = null) {
      if (key != null) {
        let value_1 = html_common.convertDartToNative_SerializedScriptValue(value);
        let key_2 = html_common.convertDartToNative_SerializedScriptValue(key);
        return this[S._put_1](value_1, key_2);
      }
      let value_1 = html_common.convertDartToNative_SerializedScriptValue(value);
      return this[S._put_2](value_1);
    }
    [S._put_1](...args) {
      return this.put.apply(this, args);
    }
    [S._put_2](...args) {
      return this.put.apply(this, args);
    }
    static _cursorStreamFromResult(T, request, autoAdvance) {
      if (request == null) dart.nullFailed(I[164], 984, 15, "request");
      let controller = async.StreamController$(T).new({sync: true});
      request[S.$onError].listen(dart.bind(controller, 'addError'));
      request[S.$onSuccess].listen(dart.fn(e => {
        if (e == null) dart.nullFailed(I[164], 993, 31, "e");
        let cursor = T[_eval]("0?")[_as](request[S.$result]);
        if (cursor == null) {
          controller.close();
        } else {
          controller.add(cursor);
          if (autoAdvance === true && dart.test(controller.hasListener)) {
            cursor[S.$next]();
          }
        }
      }, T$3.EventTovoid()));
      return controller.stream;
    }
  };
  dart.addRtiResources(indexed_db.ObjectStore, ["indexed_db|ObjectStore"]);
  dart.setMethodSignature(indexed_db.ObjectStore, () => dart.global.Object.setPrototypeOf({
    [$add]: T$3.dynamicAnddynamicToFuture(),
    [$clear]: T$.VoidToFuture(),
    [S.$delete]: T$.dynamicToFuture(),
    [S.$count]: T$3.dynamicToFutureOfint(),
    [S.$put]: T$3.dynamicAnddynamicToFuture(),
    [S.$getObject]: T$.dynamicToFuture(),
    [S.$openCursor]: T$3.__ToStreamOfCursorWithValue(),
    [S.$createIndex]: T$3.StringAnddynamic__ToIndex(),
    [S._add$3]: T$3.dynamicAnddynamicToRequest(),
    [S._add_1]: T$3.dynamicAnddynamicToRequest$1(),
    [S._add_2]: T$3.dynamicToRequest(),
    [S._clear$2]: T$3.VoidToRequest(),
    [S._count$2]: T$3.ObjectNToRequest(),
    [S._createIndex]: T$3.StringAndObjectAndMapNToIndex(),
    [S._createIndex_1]: T$3.dynamicAnddynamicAnddynamicToIndex(),
    [S._createIndex_2]: T$3.dynamicAnddynamicToIndex(),
    [S._delete$1]: T$3.ObjectToRequest(),
    [S.$deleteIndex]: T$.StringTovoid(),
    [S._get]: T$3.ObjectToRequest(),
    [S.$getAll]: T$3.ObjectNAndintNToRequest(),
    [S.$getAllKeys]: T$3.ObjectNAndintNToRequest(),
    [S.$getKey]: T$3.ObjectToRequest(),
    [S.$index]: T$3.StringToIndex(),
    [S._openCursor]: T$3.ObjectNAndStringNToRequest(),
    [S.$openKeyCursor]: T$3.ObjectNAndStringNToRequest(),
    [S._put]: T$3.dynamicAnddynamicToRequest(),
    [S._put_1]: T$3.dynamicAnddynamicToRequest$1(),
    [S._put_2]: T$3.dynamicToRequest()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(indexed_db.ObjectStore))));
  dart.setStaticMethodSignature(indexed_db.ObjectStore, () => ['__', '_cursorStreamFromResult']);
  dart.setGetterSignature(indexed_db.ObjectStore, () => dart.global.Object.setPrototypeOf({
    [S.$autoIncrement]: T$.boolN(),
    [S.$indexNames]: T$.ListNOfString(),
    [S.$keyPath]: T$.ObjectN(),
    [$name]: T$.StringN(),
    [S.$transaction]: T$3.TransactionN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.ObjectStore))));
  dart.setSetterSignature(indexed_db.ObjectStore, () => dart.global.Object.setPrototypeOf({[$name]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(indexed_db.ObjectStore))));
  dart.setLibraryUri(indexed_db.ObjectStore, I[165]);
  dart.registerExtension("IDBObjectStore", indexed_db.ObjectStore);
  indexed_db.Observation = class Observation extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return indexed_db.Observation.__();
    }
    get [S.$key]() {
      return this.key;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S.$value]() {
      return this.value;
    }
  };
  dart.addRtiResources(indexed_db.Observation, ["indexed_db|Observation"]);
  dart.setStaticMethodSignature(indexed_db.Observation, () => ['__']);
  dart.setGetterSignature(indexed_db.Observation, () => dart.global.Object.setPrototypeOf({
    [S.$key]: T$.ObjectN(),
    [S.$type]: T$.StringN(),
    [S.$value]: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.Observation))));
  dart.setLibraryUri(indexed_db.Observation, I[165]);
  dart.registerExtension("IDBObservation", indexed_db.Observation);
  indexed_db.Observer = class Observer extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return indexed_db.Observer.__();
    }
    static new(callback) {
      if (callback == null) dart.nullFailed(I[164], 1035, 37, "callback");
      let callback_1 = _js_helper.convertDartClosureToJS(T$3.ObserverChangesTovoid(), callback, 1);
      return indexed_db.Observer._create_1(callback_1);
    }
    static ['_#new#tearOff'](callback) {
      if (callback == null) dart.nullFailed(I[164], 1035, 37, "callback");
      return indexed_db.Observer.new(callback);
    }
    static _create_1(callback) {
      return new IDBObserver(callback);
    }
    [S.$observe](db, tx, options) {
      if (db == null) dart.nullFailed(I[164], 1042, 25, "db");
      if (tx == null) dart.nullFailed(I[164], 1042, 41, "tx");
      if (options == null) dart.nullFailed(I[164], 1042, 49, "options");
      let options_1 = html_common.convertDartToNative_Dictionary(options);
      this[S._observe_1](db, tx, options_1);
      return;
    }
    [S._observe_1](...args) {
      return this.observe.apply(this, args);
    }
    [S.$unobserve](...args) {
      return this.unobserve.apply(this, args);
    }
  };
  dart.addRtiResources(indexed_db.Observer, ["indexed_db|Observer"]);
  dart.setMethodSignature(indexed_db.Observer, () => dart.global.Object.setPrototypeOf({
    [S.$observe]: T$3.DatabaseAndTransactionAndMapTovoid(),
    [S._observe_1]: T$3.DatabaseAndTransactionAnddynamicTovoid(),
    [S.$unobserve]: T$3.DatabaseTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(indexed_db.Observer))));
  dart.setStaticMethodSignature(indexed_db.Observer, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(indexed_db.Observer, I[165]);
  dart.registerExtension("IDBObserver", indexed_db.Observer);
  indexed_db.ObserverChanges = class ObserverChanges extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return indexed_db.ObserverChanges.__();
    }
    get [S.$database]() {
      return this.database;
    }
    get [S.$records]() {
      return this.records;
    }
    get [S.$transaction]() {
      return this.transaction;
    }
  };
  dart.addRtiResources(indexed_db.ObserverChanges, ["indexed_db|ObserverChanges"]);
  dart.setStaticMethodSignature(indexed_db.ObserverChanges, () => ['__']);
  dart.setGetterSignature(indexed_db.ObserverChanges, () => dart.global.Object.setPrototypeOf({
    [S.$database]: T$3.DatabaseN(),
    [S.$records]: T$.ObjectN(),
    [S.$transaction]: T$3.TransactionN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.ObserverChanges))));
  dart.setLibraryUri(indexed_db.ObserverChanges, I[165]);
  dart.registerExtension("IDBObserverChanges", indexed_db.ObserverChanges);
  indexed_db.Request = class Request extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return indexed_db.Request.__();
    }
    get [S.$error]() {
      return this.error;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    get [S.$result]() {
      return indexed_db._convertNativeToDart_IDBAny(this[S._get_result]);
    }
    get [S._get_result]() {
      return this.result;
    }
    get [S.$source]() {
      return this.source;
    }
    get [S.$transaction]() {
      return this.transaction;
    }
    get [S.$onError]() {
      return indexed_db.Request.errorEvent.forTarget(this);
    }
    get [S.$onSuccess]() {
      return indexed_db.Request.successEvent.forTarget(this);
    }
  };
  dart.addRtiResources(indexed_db.Request, ["indexed_db|Request"]);
  dart.setStaticMethodSignature(indexed_db.Request, () => ['__']);
  dart.setGetterSignature(indexed_db.Request, () => dart.global.Object.setPrototypeOf({
    [S.$error]: T$3.DomExceptionN(),
    [S.$readyState]: T$.StringN(),
    [S.$result]: T$.dynamic(),
    [S._get_result]: T$.dynamic(),
    [S.$source]: T$.ObjectN(),
    [S.$transaction]: T$3.TransactionN(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S.$onSuccess]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.Request))));
  dart.setLibraryUri(indexed_db.Request, I[165]);
  dart.setStaticFieldSignature(indexed_db.Request, () => ['errorEvent', 'successEvent']);
  dart.defineLazy(indexed_db.Request, {
    /*indexed_db.Request.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*indexed_db.Request.successEvent*/get successEvent() {
      return C[269] || CT.C269;
    }
  }, false);
  dart.registerExtension("IDBRequest", indexed_db.Request);
  indexed_db.OpenDBRequest = class OpenDBRequest extends indexed_db.Request {
    static ['_#_#tearOff']() {
      return indexed_db.OpenDBRequest.__();
    }
    get [S.$onBlocked]() {
      return indexed_db.OpenDBRequest.blockedEvent.forTarget(this);
    }
    get [S.$onUpgradeNeeded]() {
      return indexed_db.OpenDBRequest.upgradeNeededEvent.forTarget(this);
    }
  };
  dart.addRtiResources(indexed_db.OpenDBRequest, ["indexed_db|OpenDBRequest"]);
  dart.setStaticMethodSignature(indexed_db.OpenDBRequest, () => ['__']);
  dart.setGetterSignature(indexed_db.OpenDBRequest, () => dart.global.Object.setPrototypeOf({
    [S.$onBlocked]: T$3.StreamOfEvent(),
    [S.$onUpgradeNeeded]: T$3.StreamOfVersionChangeEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.OpenDBRequest))));
  dart.setLibraryUri(indexed_db.OpenDBRequest, I[165]);
  dart.setStaticFieldSignature(indexed_db.OpenDBRequest, () => ['blockedEvent', 'upgradeNeededEvent']);
  dart.defineLazy(indexed_db.OpenDBRequest, {
    /*indexed_db.OpenDBRequest.blockedEvent*/get blockedEvent() {
      return C[270] || CT.C270;
    },
    /*indexed_db.OpenDBRequest.upgradeNeededEvent*/get upgradeNeededEvent() {
      return C[271] || CT.C271;
    }
  }, false);
  dart.registerExtension("IDBOpenDBRequest", indexed_db.OpenDBRequest);
  dart.registerExtension("IDBVersionChangeRequest", indexed_db.OpenDBRequest);
  indexed_db.Transaction = class Transaction extends html$.EventTarget {
    get [S.$completed]() {
      let completer = G.CompleterOfDatabase().new();
      this[S.$onComplete].first.then(T$.Null(), dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[164], 1174, 33, "_");
        completer.complete(this.db);
      }, T$3.EventToNull()));
      this[S.$onError].first.then(T$.Null(), dart.fn(e => {
        if (e == null) dart.nullFailed(I[164], 1178, 30, "e");
        completer.completeError(e);
      }, T$3.EventToNull()));
      this[S.$onAbort].first.then(T$.Null(), dart.fn(e => {
        if (e == null) dart.nullFailed(I[164], 1182, 30, "e");
        if (!dart.test(completer.isCompleted)) {
          completer.completeError(e);
        }
      }, T$3.EventToNull()));
      return completer.future;
    }
    static ['_#_#tearOff']() {
      return indexed_db.Transaction.__();
    }
    get [S.$db]() {
      return this.db;
    }
    get [S.$error]() {
      return this.error;
    }
    get [S.$mode]() {
      return this.mode;
    }
    get [S.$objectStoreNames]() {
      return this.objectStoreNames;
    }
    [S.$abort](...args) {
      return this.abort.apply(this, args);
    }
    [S.$objectStore](...args) {
      return this.objectStore.apply(this, args);
    }
    get [S.$onAbort]() {
      return indexed_db.Transaction.abortEvent.forTarget(this);
    }
    get [S.$onComplete]() {
      return indexed_db.Transaction.completeEvent.forTarget(this);
    }
    get [S.$onError]() {
      return indexed_db.Transaction.errorEvent.forTarget(this);
    }
  };
  dart.addRtiResources(indexed_db.Transaction, ["indexed_db|Transaction"]);
  dart.setMethodSignature(indexed_db.Transaction, () => dart.global.Object.setPrototypeOf({
    [S.$abort]: T$.VoidTovoid(),
    [S.$objectStore]: T$3.StringToObjectStore()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(indexed_db.Transaction))));
  dart.setStaticMethodSignature(indexed_db.Transaction, () => ['__']);
  dart.setGetterSignature(indexed_db.Transaction, () => dart.global.Object.setPrototypeOf({
    [S.$completed]: T$3.FutureOfDatabase(),
    [S.$db]: T$3.DatabaseN(),
    [S.$error]: T$3.DomExceptionN(),
    [S.$mode]: T$.StringN(),
    [S.$objectStoreNames]: T$.ListNOfString(),
    [S.$onAbort]: T$3.StreamOfEvent(),
    [S.$onComplete]: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.Transaction))));
  dart.setLibraryUri(indexed_db.Transaction, I[165]);
  dart.setStaticFieldSignature(indexed_db.Transaction, () => ['abortEvent', 'completeEvent', 'errorEvent']);
  dart.defineLazy(indexed_db.Transaction, {
    /*indexed_db.Transaction.abortEvent*/get abortEvent() {
      return C[265] || CT.C265;
    },
    /*indexed_db.Transaction.completeEvent*/get completeEvent() {
      return C[272] || CT.C272;
    },
    /*indexed_db.Transaction.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    }
  }, false);
  dart.registerExtension("IDBTransaction", indexed_db.Transaction);
  html$.Event = class Event$ extends _interceptors.JavaScriptObject {
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 15530, 24, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 15530, 36, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 15530, 59, "cancelable");
      return html$.Event.eventType("Event", type, {canBubble: canBubble, cancelable: cancelable});
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 15530, 24, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 15530, 36, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 15530, 59, "cancelable");
      return html$.Event.new(type, {canBubble: canBubble, cancelable: cancelable});
    }
    static eventType(type, name, opts) {
      if (type == null) dart.nullFailed(I[166], 15543, 34, "type");
      if (name == null) dart.nullFailed(I[166], 15543, 47, "name");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 15544, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 15544, 36, "cancelable");
      let e = html$.document[S._createEvent](type);
      e[S._initEvent](name, canBubble, cancelable);
      return e;
    }
    static ['_#eventType#tearOff'](type, name, opts) {
      if (type == null) dart.nullFailed(I[166], 15543, 34, "type");
      if (name == null) dart.nullFailed(I[166], 15543, 47, "name");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 15544, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 15544, 36, "cancelable");
      return html$.Event.eventType(type, name, {canBubble: canBubble, cancelable: cancelable});
    }
    get [S._selector]() {
      return this._selector;
    }
    set [S._selector](value) {
      this._selector = value;
    }
    get [S.$matchingTarget]() {
      if (this[S._selector] == null) {
        dart.throw(new core.UnsupportedError.new("Cannot call matchingTarget if this Event did not arise as a result of event delegation."));
      }
      let currentTarget = T$3.ElementN()[_as](this[S.$currentTarget]);
      let target = T$3.ElementN()[_as](this[S.$target]);
      let matchedTarget = null;
      do {
        if (dart.test(dart.nullCheck(target)[S.$matches](dart.nullCheck(this[S._selector])))) return target;
        target = target[S.$parent];
      } while (target != null && !dart.equals(target, dart.nullCheck(currentTarget)[S.$parent]));
      dart.throw(new core.StateError.new("No selector matched for populating matchedTarget."));
    }
    get [S.$path]() {
      return !!this.composedPath ? this.composedPath() : G.JSArrayOfEventTarget().of([]);
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 15577, 26, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.Event._create_1(type, eventInitDict_1);
      }
      return html$.Event._create_2(type);
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 15577, 26, "type");
      return html$.Event.__(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new Event(type, eventInitDict);
    }
    static _create_2(type) {
      return new Event(type);
    }
    get [S.$bubbles]() {
      return this.bubbles;
    }
    get [S.$cancelable]() {
      return this.cancelable;
    }
    get [S.$composed]() {
      return this.composed;
    }
    get [S.$currentTarget]() {
      return html$._convertNativeToDart_EventTarget(this[S._get_currentTarget]);
    }
    get [S._get_currentTarget]() {
      return this.currentTarget;
    }
    get [S.$defaultPrevented]() {
      return this.defaultPrevented;
    }
    get [S.$eventPhase]() {
      return this.eventPhase;
    }
    get [S.$isTrusted]() {
      return this.isTrusted;
    }
    get [S.$target]() {
      return html$._convertNativeToDart_EventTarget(this[S._get_target]);
    }
    get [S._get_target]() {
      return this.target;
    }
    get [S.$timeStamp]() {
      return this.timeStamp;
    }
    get [S.$type]() {
      return this.type;
    }
    [S.$composedPath](...args) {
      return this.composedPath.apply(this, args);
    }
    [S._initEvent](...args) {
      return this.initEvent.apply(this, args);
    }
    [S.$preventDefault](...args) {
      return this.preventDefault.apply(this, args);
    }
    [S.$stopImmediatePropagation](...args) {
      return this.stopImmediatePropagation.apply(this, args);
    }
    [S.$stopPropagation](...args) {
      return this.stopPropagation.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Event, ["html|Event"]);
  dart.setMethodSignature(html$.Event, () => dart.global.Object.setPrototypeOf({
    [S.$composedPath]: T$3.VoidToListOfEventTarget(),
    [S._initEvent]: T$3.StringAndboolNAndboolNTovoid(),
    [S.$preventDefault]: T$.VoidTovoid(),
    [S.$stopImmediatePropagation]: T$.VoidTovoid(),
    [S.$stopPropagation]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Event))));
  dart.setStaticMethodSignature(html$.Event, () => ['new', 'eventType', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.Event, () => dart.global.Object.setPrototypeOf({
    [S._selector]: T$.StringN(),
    [S.$matchingTarget]: T$3.Element(),
    [S.$path]: T$3.ListOfEventTarget(),
    [S.$bubbles]: T$.boolN(),
    [S.$cancelable]: T$.boolN(),
    [S.$composed]: T$.boolN(),
    [S.$currentTarget]: T$3.EventTargetN(),
    [S._get_currentTarget]: T$.dynamic(),
    [S.$defaultPrevented]: T$.bool(),
    [S.$eventPhase]: T$.int(),
    [S.$isTrusted]: T$.boolN(),
    [S.$target]: T$3.EventTargetN(),
    [S._get_target]: T$.dynamic(),
    [S.$timeStamp]: T$3.numN(),
    [S.$type]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Event))));
  dart.setSetterSignature(html$.Event, () => dart.global.Object.setPrototypeOf({[S._selector]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Event))));
  dart.setLibraryUri(html$.Event, I[167]);
  dart.setStaticFieldSignature(html$.Event, () => ['AT_TARGET', 'BUBBLING_PHASE', 'CAPTURING_PHASE']);
  dart.defineLazy(html$.Event, {
    /*html$.Event.AT_TARGET*/get AT_TARGET() {
      return 2;
    },
    /*html$.Event.BUBBLING_PHASE*/get BUBBLING_PHASE() {
      return 3;
    },
    /*html$.Event.CAPTURING_PHASE*/get CAPTURING_PHASE() {
      return 1;
    }
  }, false);
  dart.registerExtension("Event", html$.Event);
  dart.registerExtension("InputEvent", html$.Event);
  dart.registerExtension("SubmitEvent", html$.Event);
  indexed_db.VersionChangeEvent = class VersionChangeEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return indexed_db.VersionChangeEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[164], 1259, 37, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return indexed_db.VersionChangeEvent._create_1(type, eventInitDict_1);
      }
      return indexed_db.VersionChangeEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[164], 1259, 37, "type");
      return indexed_db.VersionChangeEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new IDBVersionChangeEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new IDBVersionChangeEvent(type);
    }
    get [S.$dataLoss]() {
      return this.dataLoss;
    }
    get [S.$dataLossMessage]() {
      return this.dataLossMessage;
    }
    get [S.$newVersion]() {
      return this.newVersion;
    }
    get [S.$oldVersion]() {
      return this.oldVersion;
    }
    get [S.$target]() {
      return this.target;
    }
  };
  dart.addRtiResources(indexed_db.VersionChangeEvent, ["indexed_db|VersionChangeEvent"]);
  dart.setStaticMethodSignature(indexed_db.VersionChangeEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(indexed_db.VersionChangeEvent, () => dart.global.Object.setPrototypeOf({
    [S.$dataLoss]: T$.StringN(),
    [S.$dataLossMessage]: T$.StringN(),
    [S.$newVersion]: T$.intN(),
    [S.$oldVersion]: T$.intN(),
    [S.$target]: T$3.OpenDBRequest()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(indexed_db.VersionChangeEvent))));
  dart.setLibraryUri(indexed_db.VersionChangeEvent, I[165]);
  dart.registerExtension("IDBVersionChangeEvent", indexed_db.VersionChangeEvent);
  indexed_db._convertNativeToDart_IDBKey = function _convertNativeToDart_IDBKey(nativeKey) {
    function containsDate(object) {
      if (dart.test(html_common.isJavaScriptDate(object))) return true;
      if (T$.List()[_is](object)) {
        for (let i = 0; i < dart.notNull(object[$length]); i = i + 1) {
          if (dart.dtest(containsDate(object[$_get](i)))) return true;
        }
      }
      return false;
    }
    dart.fn(containsDate, T$.dynamicTobool());
    if (dart.test(containsDate(nativeKey))) {
      dart.throw(new core.UnimplementedError.new("Key containing DateTime"));
    }
    return nativeKey;
  };
  indexed_db._convertDartToNative_IDBKey = function _convertDartToNative_IDBKey(dartKey) {
    return dartKey;
  };
  indexed_db._convertNativeToDart_IDBAny = function _convertNativeToDart_IDBAny(object) {
    return html_common.convertNativeToDart_AcceptStructuredClone(object, {mustCopy: false});
  };
  indexed_db._completeRequest = function _completeRequest(T, request) {
    if (request == null) dart.nullFailed(I[164], 537, 39, "request");
    let completer = async.Completer$(T).sync();
    request[S.$onSuccess].listen(dart.fn(e => {
      if (e == null) dart.nullFailed(I[164], 541, 29, "e");
      let result = T[_as](request[S.$result]);
      completer.complete(result);
    }, T$3.EventTovoid()));
    request[S.$onError].listen(dart.bind(completer, 'completeError'));
    return completer.future;
  };
  dart.defineLazy(indexed_db, {
    /*indexed_db._idbKey*/get _idbKey() {
      return "JSExtendableArray|=Object|num|String";
    },
    /*indexed_db._annotation_Creates_IDBKey*/get _annotation_Creates_IDBKey() {
      return C[273] || CT.C273;
    },
    /*indexed_db._annotation_Returns_IDBKey*/get _annotation_Returns_IDBKey() {
      return C[274] || CT.C274;
    }
  }, false);
  html$.Node = class Node extends html$.EventTarget {
    static ['_#_created#tearOff']() {
      return new html$.Node._created();
    }
    get [S.$nodes]() {
      return new html$._ChildNodeListLazy.new(this);
    }
    set [S.$nodes](value) {
      if (value == null) dart.nullFailed(I[166], 23215, 28, "value");
      let copy = value[$toList]();
      this[S.$text] = "";
      for (let node of copy) {
        this[S.$append](node);
      }
    }
    [$remove]() {
      if (this.parentNode != null) {
        let parent = dart.nullCheck(this.parentNode);
        parent[S$._removeChild](this);
      }
    }
    [S$.$replaceWith](otherNode) {
      if (otherNode == null) dart.nullFailed(I[166], 23240, 25, "otherNode");
      try {
        let parent = dart.nullCheck(this.parentNode);
        parent[S$._replaceChild](otherNode, this);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e;
      }
      return this;
    }
    [S$.$insertAllBefore](newNodes, child) {
      if (newNodes == null) dart.nullFailed(I[166], 23255, 39, "newNodes");
      if (child == null) dart.nullFailed(I[166], 23255, 54, "child");
      if (T$3._ChildNodeListLazy()[_is](newNodes)) {
        let otherList = newNodes;
        if (otherList[S$._this] === this) {
          dart.throw(new core.ArgumentError.new(newNodes));
        }
        for (let i = 0, len = otherList.length; i < dart.notNull(len); i = i + 1) {
          this.insertBefore(dart.nullCheck(otherList[S$._this].firstChild), child);
        }
      } else {
        for (let node of newNodes) {
          this.insertBefore(node, child);
        }
      }
    }
    [S$._clearChildren]() {
      while (this.firstChild != null) {
        this[S$._removeChild](dart.nullCheck(this.firstChild));
      }
    }
    [$toString]() {
      let value = this.nodeValue;
      return value == null ? super[$toString]() : value;
    }
    get [S$.$childNodes]() {
      return this.childNodes;
    }
    static ['_#_#tearOff']() {
      return html$.Node.__();
    }
    get [S.$baseUri]() {
      return this.baseURI;
    }
    get [S$.$firstChild]() {
      return this.firstChild;
    }
    get [S$.$isConnected]() {
      return this.isConnected;
    }
    get [S$.$lastChild]() {
      return this.lastChild;
    }
    get [S.$nextNode]() {
      return this.nextSibling;
    }
    get [S$.$nodeName]() {
      return this.nodeName;
    }
    get [S$.$nodeType]() {
      return this.nodeType;
    }
    get [S$.$nodeValue]() {
      return this.nodeValue;
    }
    get [S$.$ownerDocument]() {
      return this.ownerDocument;
    }
    get [S.$parent]() {
      return this.parentElement;
    }
    get [S$.$parentNode]() {
      return this.parentNode;
    }
    get [S$.$previousNode]() {
      return this.previousSibling;
    }
    get [S.$text]() {
      return this.textContent;
    }
    set [S.$text](value) {
      this.textContent = value;
    }
    [S.$append](...args) {
      return this.appendChild.apply(this, args);
    }
    [S$.$clone](...args) {
      return this.cloneNode.apply(this, args);
    }
    [$contains](...args) {
      return this.contains.apply(this, args);
    }
    [S$.$getRootNode](options = null) {
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return this[S$._getRootNode_1](options_1);
      }
      return this[S$._getRootNode_2]();
    }
    [S$._getRootNode_1](...args) {
      return this.getRootNode.apply(this, args);
    }
    [S$._getRootNode_2](...args) {
      return this.getRootNode.apply(this, args);
    }
    [S$.$hasChildNodes](...args) {
      return this.hasChildNodes.apply(this, args);
    }
    [S$.$insertBefore](...args) {
      return this.insertBefore.apply(this, args);
    }
    [S$._removeChild](...args) {
      return this.removeChild.apply(this, args);
    }
    [S$._replaceChild](...args) {
      return this.replaceChild.apply(this, args);
    }
  };
  (html$.Node._created = function() {
    dart.global.Object.getPrototypeOf(html$.Node)._created.call(this);
    ;
  }).prototype = html$.Node.prototype;
  dart.addRtiResources(html$.Node, ["html|Node"]);
  dart.setMethodSignature(html$.Node, () => dart.global.Object.setPrototypeOf({
    [$remove]: T$.VoidTovoid(),
    [S$.$replaceWith]: T$3.NodeToNode$1(),
    [S$.$insertAllBefore]: T$3.IterableOfNodeAndNodeTovoid(),
    [S$._clearChildren]: T$.VoidTovoid(),
    [S.$append]: T$3.NodeToNode$1(),
    [S$.$clone]: T$3.boolNToNode(),
    [$contains]: T$3.NodeNTobool(),
    [S$.$getRootNode]: T$3.MapNToNode(),
    [S$._getRootNode_1]: T$3.dynamicToNode(),
    [S$._getRootNode_2]: T$3.VoidToNode(),
    [S$.$hasChildNodes]: T$.VoidTobool(),
    [S$.$insertBefore]: T$3.NodeAndNodeNToNode(),
    [S$._removeChild]: T$3.NodeToNode$1(),
    [S$._replaceChild]: T$3.NodeAndNodeToNode()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Node))));
  dart.setStaticMethodSignature(html$.Node, () => ['__']);
  dart.setGetterSignature(html$.Node, () => dart.global.Object.setPrototypeOf({
    [S.$nodes]: T$3.ListOfNode$1(),
    [S$.$childNodes]: T$3.ListOfNode$1(),
    [S.$baseUri]: T$.StringN(),
    [S$.$firstChild]: T$3.NodeN$2(),
    [S$.$isConnected]: T$.boolN(),
    [S$.$lastChild]: T$3.NodeN$2(),
    [S.$nextNode]: T$3.NodeN$2(),
    [S$.$nodeName]: T$.StringN(),
    [S$.$nodeType]: T$.int(),
    [S$.$nodeValue]: T$.StringN(),
    [S$.$ownerDocument]: T$3.DocumentN(),
    [S.$parent]: T$3.ElementN(),
    [S$.$parentNode]: T$3.NodeN$2(),
    [S$.$previousNode]: T$3.NodeN$2(),
    [S.$text]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Node))));
  dart.setSetterSignature(html$.Node, () => dart.global.Object.setPrototypeOf({
    [S.$nodes]: T$3.IterableOfNode(),
    [S.$text]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Node))));
  dart.setLibraryUri(html$.Node, I[167]);
  dart.setStaticFieldSignature(html$.Node, () => ['ATTRIBUTE_NODE', 'CDATA_SECTION_NODE', 'COMMENT_NODE', 'DOCUMENT_FRAGMENT_NODE', 'DOCUMENT_NODE', 'DOCUMENT_TYPE_NODE', 'ELEMENT_NODE', 'ENTITY_NODE', 'ENTITY_REFERENCE_NODE', 'NOTATION_NODE', 'PROCESSING_INSTRUCTION_NODE', 'TEXT_NODE']);
  dart.defineLazy(html$.Node, {
    /*html$.Node.ATTRIBUTE_NODE*/get ATTRIBUTE_NODE() {
      return 2;
    },
    /*html$.Node.CDATA_SECTION_NODE*/get CDATA_SECTION_NODE() {
      return 4;
    },
    /*html$.Node.COMMENT_NODE*/get COMMENT_NODE() {
      return 8;
    },
    /*html$.Node.DOCUMENT_FRAGMENT_NODE*/get DOCUMENT_FRAGMENT_NODE() {
      return 11;
    },
    /*html$.Node.DOCUMENT_NODE*/get DOCUMENT_NODE() {
      return 9;
    },
    /*html$.Node.DOCUMENT_TYPE_NODE*/get DOCUMENT_TYPE_NODE() {
      return 10;
    },
    /*html$.Node.ELEMENT_NODE*/get ELEMENT_NODE() {
      return 1;
    },
    /*html$.Node.ENTITY_NODE*/get ENTITY_NODE() {
      return 6;
    },
    /*html$.Node.ENTITY_REFERENCE_NODE*/get ENTITY_REFERENCE_NODE() {
      return 5;
    },
    /*html$.Node.NOTATION_NODE*/get NOTATION_NODE() {
      return 12;
    },
    /*html$.Node.PROCESSING_INSTRUCTION_NODE*/get PROCESSING_INSTRUCTION_NODE() {
      return 7;
    },
    /*html$.Node.TEXT_NODE*/get TEXT_NODE() {
      return 3;
    }
  }, false);
  dart.registerExtension("Node", html$.Node);
  html$.Element = class Element extends html$.Node {
    static html(html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      let fragment = dart.nullCheck(html$.document.body)[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer});
      return T$3.Element()[_as](fragment[S.$nodes][$where](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 12741, 34, "e");
        return T$3.Element()[_is](e);
      }, T$3.NodeTobool()))[$single]);
    }
    static ['_#html#tearOff'](html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      return html$.Element.html(html, {validator: validator, treeSanitizer: treeSanitizer});
    }
    static ['_#created#tearOff']() {
      return new html$.Element.created();
    }
    static tag(tag, typeExtension = null) {
      if (tag == null) dart.nullFailed(I[166], 12786, 30, "tag");
      return T$3.Element()[_as](html$._ElementFactoryProvider.createElement_tag(tag, typeExtension));
    }
    static ['_#tag#tearOff'](tag, typeExtension = null) {
      if (tag == null) dart.nullFailed(I[166], 12786, 30, "tag");
      return html$.Element.tag(tag, typeExtension);
    }
    static a() {
      return html$.AnchorElement.new();
    }
    static ['_#a#tearOff']() {
      return html$.Element.a();
    }
    static ['_#article#tearOff']() {
      return html$.Element.article();
    }
    static article() {
      return html$.Element.tag("article");
    }
    static ['_#aside#tearOff']() {
      return html$.Element.aside();
    }
    static aside() {
      return html$.Element.tag("aside");
    }
    static audio() {
      return html$.Element.tag("audio");
    }
    static ['_#audio#tearOff']() {
      return html$.Element.audio();
    }
    static br() {
      return html$.BRElement.new();
    }
    static ['_#br#tearOff']() {
      return html$.Element.br();
    }
    static canvas() {
      return html$.CanvasElement.new();
    }
    static ['_#canvas#tearOff']() {
      return html$.Element.canvas();
    }
    static ['_#div#tearOff']() {
      return html$.Element.div();
    }
    static div() {
      return html$.DivElement.new();
    }
    static footer() {
      return html$.Element.tag("footer");
    }
    static ['_#footer#tearOff']() {
      return html$.Element.footer();
    }
    static header() {
      return html$.Element.tag("header");
    }
    static ['_#header#tearOff']() {
      return html$.Element.header();
    }
    static hr() {
      return html$.Element.tag("hr");
    }
    static ['_#hr#tearOff']() {
      return html$.Element.hr();
    }
    static iframe() {
      return html$.Element.tag("iframe");
    }
    static ['_#iframe#tearOff']() {
      return html$.Element.iframe();
    }
    static img() {
      return html$.Element.tag("img");
    }
    static ['_#img#tearOff']() {
      return html$.Element.img();
    }
    static li() {
      return html$.Element.tag("li");
    }
    static ['_#li#tearOff']() {
      return html$.Element.li();
    }
    static nav() {
      return html$.Element.tag("nav");
    }
    static ['_#nav#tearOff']() {
      return html$.Element.nav();
    }
    static ['_#ol#tearOff']() {
      return html$.Element.ol();
    }
    static ol() {
      return html$.Element.tag("ol");
    }
    static ['_#option#tearOff']() {
      return html$.Element.option();
    }
    static option() {
      return html$.Element.tag("option");
    }
    static ['_#p#tearOff']() {
      return html$.Element.p();
    }
    static p() {
      return html$.Element.tag("p");
    }
    static ['_#pre#tearOff']() {
      return html$.Element.pre();
    }
    static pre() {
      return html$.Element.tag("pre");
    }
    static section() {
      return html$.Element.tag("section");
    }
    static ['_#section#tearOff']() {
      return html$.Element.section();
    }
    static select() {
      return html$.Element.tag("select");
    }
    static ['_#select#tearOff']() {
      return html$.Element.select();
    }
    static ['_#span#tearOff']() {
      return html$.Element.span();
    }
    static span() {
      return html$.Element.tag("span");
    }
    static svg() {
      return html$.Element.tag("svg");
    }
    static ['_#svg#tearOff']() {
      return html$.Element.svg();
    }
    static table() {
      return html$.Element.tag("table");
    }
    static ['_#table#tearOff']() {
      return html$.Element.table();
    }
    static td() {
      return html$.Element.tag("td");
    }
    static ['_#td#tearOff']() {
      return html$.Element.td();
    }
    static textarea() {
      return html$.Element.tag("textarea");
    }
    static ['_#textarea#tearOff']() {
      return html$.Element.textarea();
    }
    static ['_#th#tearOff']() {
      return html$.Element.th();
    }
    static th() {
      return html$.Element.tag("th");
    }
    static ['_#tr#tearOff']() {
      return html$.Element.tr();
    }
    static tr() {
      return html$.Element.tag("tr");
    }
    static ['_#ul#tearOff']() {
      return html$.Element.ul();
    }
    static ul() {
      return html$.Element.tag("ul");
    }
    static ['_#video#tearOff']() {
      return html$.Element.video();
    }
    static video() {
      return html$.Element.tag("video");
    }
    get [S.$attributes]() {
      return new html$._ElementAttributeMap.new(this);
    }
    set [S.$attributes](value) {
      if (value == null) dart.nullFailed(I[166], 12946, 38, "value");
      let attributes = this[S.$attributes];
      attributes[$clear]();
      for (let key of value[$keys]) {
        attributes[$_set](key, dart.nullCheck(value[$_get](key)));
      }
    }
    [S.$getAttribute](name) {
      if (name == null) dart.nullFailed(I[166], 12955, 31, "name");
      if (!(name != null)) dart.assertFailed("Attribute name cannot be null", I[166], 12958, 12, "name != null");
      return this[S._getAttribute](name);
    }
    [S.$getAttributeNS](namespaceURI, name) {
      if (name == null) dart.nullFailed(I[166], 12963, 55, "name");
      if (!(name != null)) dart.assertFailed("Attribute name cannot be null", I[166], 12967, 12, "name != null");
      return this[S._getAttributeNS](namespaceURI, name);
    }
    [S.$hasAttribute](name) {
      if (name == null) dart.nullFailed(I[166], 12972, 28, "name");
      if (!(name != null)) dart.assertFailed("Attribute name cannot be null", I[166], 12975, 12, "name != null");
      return this[S._hasAttribute](name);
    }
    [S.$hasAttributeNS](namespaceURI, name) {
      if (name == null) dart.nullFailed(I[166], 12980, 52, "name");
      if (!(name != null)) dart.assertFailed("Attribute name cannot be null", I[166], 12984, 12, "name != null");
      return this[S._hasAttributeNS](namespaceURI, name);
    }
    [S.$removeAttribute](name) {
      if (name == null) dart.nullFailed(I[166], 12989, 31, "name");
      if (!(name != null)) dart.assertFailed("Attribute name cannot be null", I[166], 12992, 12, "name != null");
      this[S._removeAttribute](name);
    }
    [S.$removeAttributeNS](namespaceURI, name) {
      if (name == null) dart.nullFailed(I[166], 12997, 55, "name");
      if (!(name != null)) dart.assertFailed("Attribute name cannot be null", I[166], 13000, 12, "name != null");
      this[S._removeAttributeNS](namespaceURI, name);
    }
    [S.$setAttribute](name, value) {
      if (name == null) dart.nullFailed(I[166], 13005, 28, "name");
      if (value == null) dart.nullFailed(I[166], 13005, 41, "value");
      if (!(name != null)) dart.assertFailed("Attribute name cannot be null", I[166], 13008, 12, "name != null");
      this[S._setAttribute](name, value);
    }
    [S.$setAttributeNS](namespaceURI, name, value) {
      if (name == null) dart.nullFailed(I[166], 13014, 52, "name");
      if (value == null) dart.nullFailed(I[166], 13014, 65, "value");
      if (!(name != null)) dart.assertFailed("Attribute name cannot be null", I[166], 13017, 12, "name != null");
      this[S._setAttributeNS](namespaceURI, name, value);
    }
    get [S.$children]() {
      return new html$._ChildrenElementList._wrap(this);
    }
    get [S._children]() {
      return this.children;
    }
    set [S.$children](value) {
      if (value == null) dart.nullFailed(I[166], 13046, 30, "value");
      let copy = value[$toList]();
      let children = this[S.$children];
      children[$clear]();
      children[$addAll](copy);
    }
    [S.$querySelectorAll](T, selectors) {
      if (selectors == null) dart.nullFailed(I[166], 13065, 61, "selectors");
      return new (html$._FrozenElementList$(T))._wrap(this[S._querySelectorAll](selectors));
    }
    [S._setApplyScroll](...args) {
      return this.setApplyScroll.apply(this, args);
    }
    [S.$setApplyScroll](nativeScrollBehavior) {
      if (nativeScrollBehavior == null) dart.nullFailed(I[166], 13072, 45, "nativeScrollBehavior");
      let completer = G.CompleterOfScrollState().new();
      this[S._setApplyScroll](dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 13074, 22, "value");
        completer.complete(value);
      }, T$3.ScrollStateTovoid()), nativeScrollBehavior);
      return completer.future;
    }
    [S._setDistributeScroll](...args) {
      return this.setDistributeScroll.apply(this, args);
    }
    [S.$setDistributeScroll](nativeScrollBehavior) {
      if (nativeScrollBehavior == null) dart.nullFailed(I[166], 13084, 50, "nativeScrollBehavior");
      let completer = G.CompleterOfScrollState().new();
      this[S._setDistributeScroll](dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 13086, 27, "value");
        completer.complete(value);
      }, T$3.ScrollStateTovoid()), nativeScrollBehavior);
      return completer.future;
    }
    get [S.$classes]() {
      return new html$._ElementCssClassSet.new(this);
    }
    set [S.$classes](value) {
      if (value == null) dart.nullFailed(I[166], 13104, 32, "value");
      let classSet = this[S.$classes];
      classSet.clear();
      classSet.addAll(value);
    }
    get [S.$dataset]() {
      return new html$._DataAttributeMap.new(this[S.$attributes]);
    }
    set [S.$dataset](value) {
      if (value == null) dart.nullFailed(I[166], 13136, 35, "value");
      let data = this[S.$dataset];
      data[$clear]();
      for (let key of value[$keys]) {
        data[$_set](key, dart.nullCheck(value[$_get](key)));
      }
    }
    [S.$getNamespacedAttributes](namespace) {
      if (namespace == null) dart.nullFailed(I[166], 13149, 54, "namespace");
      return new html$._NamespacedAttributeMap.new(this, namespace);
    }
    [S.$getComputedStyle](pseudoElement = null) {
      if (pseudoElement == null) {
        pseudoElement = "";
      }
      return html$.window[S._getComputedStyle](this, pseudoElement);
    }
    get [S.$client]() {
      return new (G.RectangleOfnum()).new(dart.nullCheck(this.clientLeft), dart.nullCheck(this.clientTop), this.clientWidth, this.clientHeight);
    }
    get [S.$offset]() {
      return new (G.RectangleOfnum()).new(this[S.$offsetLeft], this[S.$offsetTop], this[S.$offsetWidth], this[S.$offsetHeight]);
    }
    [S.$appendText](text) {
      if (text == null) dart.nullFailed(I[166], 13195, 26, "text");
      this[S.$append](html$.Text.new(text));
    }
    [S.$appendHtml](text, opts) {
      if (text == null) dart.nullFailed(I[166], 13203, 26, "text");
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      this[S.$insertAdjacentHtml]("beforeend", text, {validator: validator, treeSanitizer: treeSanitizer});
    }
    static isTagSupported(tag) {
      if (tag == null) dart.nullFailed(I[166], 13214, 37, "tag");
      let e = html$._ElementFactoryProvider.createElement_tag(tag, null);
      return T$3.Element()[_is](e) && !T$3.UnknownElement()[_is](e);
    }
    [S.$attached]() {
      this[S.$enteredView]();
    }
    [S.$detached]() {
      this[S.$leftView]();
    }
    [S.$enteredView]() {
    }
    [S.$getClientRects]() {
      let value = this[S._getClientRects]();
      let jsProto = value.prototype;
      if (jsProto == null) {
        value.prototype = Object.create(null);
      }
      _js_helper.applyExtension("DOMRectList", value);
      return value;
    }
    [S.$leftView]() {
    }
    [S.$animate](frames, timing = null) {
      if (frames == null) dart.nullFailed(I[166], 13287, 52, "frames");
      if (!T$.Iterable()[_is](frames) || !dart.test(frames[$every](dart.fn(x => {
        if (x == null) dart.nullFailed(I[166], 13288, 48, "x");
        return T$.Map()[_is](x);
      }, T$3.MapOfString$dynamicTobool())))) {
        dart.throw(new core.ArgumentError.new("The frames parameter should be a List of Maps with frame information"));
      }
      let convertedFrames = null;
      if (T$.Iterable()[_is](frames)) {
        convertedFrames = frames[$map](T$.dynamic(), C[275] || CT.C275)[$toList]();
      } else {
        convertedFrames = frames;
      }
      let convertedTiming = T$.Map()[_is](timing) ? html_common.convertDartToNative_Dictionary(timing) : timing;
      return convertedTiming == null ? this[S._animate](T$.Object()[_as](convertedFrames)) : this[S._animate](T$.Object()[_as](convertedFrames), convertedTiming);
    }
    [S._animate](...args) {
      return this.animate.apply(this, args);
    }
    [S.$attributeChanged](name, oldValue, newValue) {
      if (name == null) dart.nullFailed(I[166], 13310, 32, "name");
      if (oldValue == null) dart.nullFailed(I[166], 13310, 45, "oldValue");
      if (newValue == null) dart.nullFailed(I[166], 13310, 62, "newValue");
    }
    get [S.$localName]() {
      return this[S._localName];
    }
    get [S.$namespaceUri]() {
      return this[S._namespaceUri];
    }
    [$toString]() {
      return this[S.$localName];
    }
    [S.$scrollIntoView](alignment = null) {
      let hasScrollIntoViewIfNeeded = true;
      hasScrollIntoViewIfNeeded = !!this.scrollIntoViewIfNeeded;
      if (dart.equals(alignment, html$.ScrollAlignment.TOP)) {
        this[S._scrollIntoView](true);
      } else if (dart.equals(alignment, html$.ScrollAlignment.BOTTOM)) {
        this[S._scrollIntoView](false);
      } else if (hasScrollIntoViewIfNeeded) {
        if (dart.equals(alignment, html$.ScrollAlignment.CENTER)) {
          this.scrollIntoViewIfNeeded(true);
        } else {
          this.scrollIntoViewIfNeeded();
        }
      } else {
        this[S._scrollIntoView]();
      }
    }
    static _determineMouseWheelEventType(e) {
      if (e == null) dart.nullFailed(I[166], 13387, 59, "e");
      return "wheel";
    }
    static _determineTransitionEventType(e) {
      if (e == null) dart.nullFailed(I[166], 13399, 59, "e");
      if (dart.test(html_common.Device.isWebKit)) {
        return "webkitTransitionEnd";
      } else if (dart.test(html_common.Device.isOpera)) {
        return "oTransitionEnd";
      }
      return "transitionend";
    }
    [S.$insertAdjacentText](where, text) {
      if (where == null) dart.nullFailed(I[166], 13419, 34, "where");
      if (text == null) dart.nullFailed(I[166], 13419, 48, "text");
      if (!!this.insertAdjacentText) {
        this[S._insertAdjacentText](where, text);
      } else {
        this[S._insertAdjacentNode](where, html$.Text.new(text));
      }
    }
    [S._insertAdjacentText](...args) {
      return this.insertAdjacentText.apply(this, args);
    }
    [S.$insertAdjacentHtml](where, html, opts) {
      if (where == null) dart.nullFailed(I[166], 13454, 34, "where");
      if (html == null) dart.nullFailed(I[166], 13454, 48, "html");
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      if (T$3._TrustedHtmlTreeSanitizer()[_is](treeSanitizer)) {
        this[S._insertAdjacentHtml](where, html);
      } else {
        this[S._insertAdjacentNode](where, this[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer}));
      }
    }
    [S._insertAdjacentHtml](...args) {
      return this.insertAdjacentHTML.apply(this, args);
    }
    [S.$insertAdjacentElement](where, element) {
      if (where == null) dart.nullFailed(I[166], 13479, 40, "where");
      if (element == null) dart.nullFailed(I[166], 13479, 55, "element");
      if (!!this.insertAdjacentElement) {
        this[S._insertAdjacentElement](where, element);
      } else {
        this[S._insertAdjacentNode](where, element);
      }
      return element;
    }
    [S._insertAdjacentElement](...args) {
      return this.insertAdjacentElement.apply(this, args);
    }
    [S._insertAdjacentNode](where, node) {
      if (where == null) dart.nullFailed(I[166], 13491, 35, "where");
      if (node == null) dart.nullFailed(I[166], 13491, 47, "node");
      switch (where[$toLowerCase]()) {
        case "beforebegin":
          {
            dart.nullCheck(this.parentNode).insertBefore(node, this);
            break;
          }
        case "afterbegin":
          {
            let first = dart.notNull(this[S.$nodes][$length]) > 0 ? this[S.$nodes][$_get](0) : null;
            this.insertBefore(node, first);
            break;
          }
        case "beforeend":
          {
            this[S.$append](node);
            break;
          }
        case "afterend":
          {
            dart.nullCheck(this.parentNode).insertBefore(node, this[S.$nextNode]);
            break;
          }
        default:
          {
            dart.throw(new core.ArgumentError.new("Invalid position " + dart.str(where)));
          }
      }
    }
    [S.$matches](selectors) {
      if (selectors == null) dart.nullFailed(I[166], 13514, 23, "selectors");
      if (!!this.matches) {
        return this.matches(selectors);
      } else if (!!this.webkitMatchesSelector) {
        return this.webkitMatchesSelector(selectors);
      } else if (!!this.mozMatchesSelector) {
        return this.mozMatchesSelector(selectors);
      } else if (!!this.msMatchesSelector) {
        return this.msMatchesSelector(selectors);
      } else if (!!this.oMatchesSelector) {
        return this.oMatchesSelector(selectors);
      } else {
        dart.throw(new core.UnsupportedError.new("Not supported on this platform"));
      }
    }
    [S.$matchesWithAncestors](selectors) {
      if (selectors == null) dart.nullFailed(I[166], 13531, 36, "selectors");
      let elem = this;
      do {
        if (dart.test(dart.nullCheck(elem)[S.$matches](selectors))) return true;
        elem = elem[S.$parent];
      } while (elem != null);
      return false;
    }
    [S.$createShadowRoot]() {
      return (this.createShadowRoot || this.webkitCreateShadowRoot).call(this);
    }
    get [S.$shadowRoot]() {
      return this.shadowRoot || this.webkitShadowRoot;
    }
    get [S.$contentEdge]() {
      return new html$._ContentCssRect.new(this);
    }
    get [S.$paddingEdge]() {
      return new html$._PaddingCssRect.new(this);
    }
    get [S.$borderEdge]() {
      return new html$._BorderCssRect.new(this);
    }
    get [S.$marginEdge]() {
      return new html$._MarginCssRect.new(this);
    }
    get [S.$documentOffset]() {
      return this[S.$offsetTo](dart.nullCheck(html$.document.documentElement));
    }
    [S.$offsetTo](parent) {
      if (parent == null) dart.nullFailed(I[166], 13663, 26, "parent");
      return html$.Element._offsetToHelper(this, parent);
    }
    static _offsetToHelper(current, parent) {
      if (parent == null) dart.nullFailed(I[166], 13667, 58, "parent");
      let sameAsParent = current == parent;
      let foundAsParent = sameAsParent || parent.tagName === "HTML";
      if (current == null || sameAsParent) {
        if (foundAsParent) return new (G.PointOfnum()).new(0, 0);
        dart.throw(new core.ArgumentError.new("Specified element is not a transitive offset parent of this element."));
      }
      let parentOffset = current.offsetParent;
      let p = html$.Element._offsetToHelper(parentOffset, parent);
      return new (G.PointOfnum()).new(dart.notNull(p.x) + dart.notNull(current[S.$offsetLeft]), dart.notNull(p.y) + dart.notNull(current[S.$offsetTop]));
    }
    [S.$createFragment](html, opts) {
      let t$36363;
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      if (treeSanitizer == null) {
        if (validator == null) {
          if (html$.Element._defaultValidator == null) {
            html$.Element._defaultValidator = new html$.NodeValidatorBuilder.common();
          }
          validator = html$.Element._defaultValidator;
        }
        if (html$.Element._defaultSanitizer == null) {
          html$.Element._defaultSanitizer = new html$._ValidatingTreeSanitizer.new(dart.nullCheck(validator));
        } else {
          dart.nullCheck(html$.Element._defaultSanitizer).validator = dart.nullCheck(validator);
        }
        treeSanitizer = html$.Element._defaultSanitizer;
      } else if (validator != null) {
        dart.throw(new core.ArgumentError.new("validator can only be passed if treeSanitizer is null"));
      }
      if (html$.Element._parseDocument == null) {
        html$.Element._parseDocument = dart.nullCheck(html$.document.implementation)[S.$createHtmlDocument]("");
        html$.Element._parseRange = dart.nullCheck(html$.Element._parseDocument).createRange();
        let base = T$3.BaseElement()[_as](dart.nullCheck(html$.Element._parseDocument)[S.$createElement]("base"));
        base.href = dart.nullCheck(html$.document[S.$baseUri]);
        dart.nullCheck(dart.nullCheck(html$.Element._parseDocument)[S.$head])[S.$append](base);
      }
      if (dart.nullCheck(html$.Element._parseDocument).body == null) {
        dart.nullCheck(html$.Element._parseDocument).body = T$3.BodyElement()[_as](dart.nullCheck(html$.Element._parseDocument)[S.$createElement]("body"));
      }
      let contextElement = null;
      if (T$3.BodyElement()[_is](this)) {
        contextElement = dart.nullCheck(dart.nullCheck(html$.Element._parseDocument).body);
      } else {
        contextElement = dart.nullCheck(html$.Element._parseDocument)[S.$createElement](this.tagName);
        dart.nullCheck(dart.nullCheck(html$.Element._parseDocument).body)[S.$append](contextElement);
      }
      let fragment = null;
      if (dart.test(html$.Range.supportsCreateContextualFragment) && dart.test(this[S._canBeUsedToCreateContextualFragment])) {
        dart.nullCheck(html$.Element._parseRange).selectNodeContents(contextElement);
        fragment = dart.nullCheck(html$.Element._parseRange).createContextualFragment((t$36363 = html, t$36363 == null ? "null" : t$36363));
      } else {
        contextElement[S._innerHtml] = html;
        fragment = dart.nullCheck(html$.Element._parseDocument).createDocumentFragment();
        while (contextElement.firstChild != null) {
          fragment[S.$append](dart.nullCheck(contextElement.firstChild));
        }
      }
      if (!dart.equals(contextElement, dart.nullCheck(html$.Element._parseDocument).body)) {
        contextElement[$remove]();
      }
      dart.nullCheck(treeSanitizer).sanitizeTree(fragment);
      html$.document.adoptNode(fragment);
      return fragment;
    }
    get [S._canBeUsedToCreateContextualFragment]() {
      return !dart.test(this[S._cannotBeUsedToCreateContextualFragment]);
    }
    get [S._cannotBeUsedToCreateContextualFragment]() {
      return html$.Element._tagsForWhichCreateContextualFragmentIsNotSupported[$contains](this.tagName);
    }
    set [S.$innerHtml](html) {
      this[S.$setInnerHtml](html);
    }
    [S.$setInnerHtml](html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      this[S.$text] = null;
      if (T$3._TrustedHtmlTreeSanitizer()[_is](treeSanitizer)) {
        this[S._innerHtml] = html;
      } else {
        this[S.$append](this[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer}));
      }
    }
    get [S.$innerHtml]() {
      return this[S._innerHtml];
    }
    get [S.$innerText]() {
      return this.innerText;
    }
    set [S.$innerText](value) {
      this.innerText = value;
    }
    get [S.$on]() {
      return new html$.ElementEvents.new(this);
    }
    static _hasCorruptedAttributes(element) {
      if (element == null) dart.nullFailed(I[166], 13876, 47, "element");
      return (function(element) {
        if (!(element.attributes instanceof NamedNodeMap)) {
          return true;
        }
        if (element.id == 'lastChild' || element.name == 'lastChild' || element.id == 'previousSibling' || element.name == 'previousSibling' || element.id == 'children' || element.name == 'children') {
          return true;
        }
        var childNodes = element.childNodes;
        if (element.lastChild && element.lastChild !== childNodes[childNodes.length - 1]) {
          return true;
        }
        if (element.children) {
          if (!(element.children instanceof HTMLCollection || element.children instanceof NodeList)) {
            return true;
          }
        }
        var length = 0;
        if (element.children) {
          length = element.children.length;
        }
        for (var i = 0; i < length; i++) {
          var child = element.children[i];
          if (child.id == 'attributes' || child.name == 'attributes' || child.id == 'lastChild' || child.name == 'lastChild' || child.id == 'previousSibling' || child.name == 'previousSibling' || child.id == 'children' || child.name == 'children') {
            return true;
          }
        }
        return false;
      })(element);
    }
    static _hasCorruptedAttributesAdditionalCheck(element) {
      if (element == null) dart.nullFailed(I[166], 13928, 62, "element");
      return !(element.attributes instanceof NamedNodeMap);
    }
    static _safeTagName(element) {
      if (element == null) dart.nullFailed(I[166], 13932, 38, "element");
      let result = "element tag unavailable";
      try {
        if (typeof element.tagName == 'string') {
          result = element.tagName;
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e;
      }
      return result;
    }
    get [S.$offsetParent]() {
      return this.offsetParent;
    }
    get [S.$offsetHeight]() {
      return this.offsetHeight[$round]();
    }
    get [S.$offsetLeft]() {
      return this.offsetLeft[$round]();
    }
    get [S.$offsetTop]() {
      return this.offsetTop[$round]();
    }
    get [S.$offsetWidth]() {
      return this.offsetWidth[$round]();
    }
    get [S.$scrollHeight]() {
      return this.scrollHeight[$round]();
    }
    get [S.$scrollLeft]() {
      return this.scrollLeft[$round]();
    }
    set [S.$scrollLeft](value) {
      if (value == null) dart.nullFailed(I[166], 13955, 22, "value");
      this.scrollLeft = value[$round]();
    }
    get [S.$scrollTop]() {
      return this.scrollTop[$round]();
    }
    set [S.$scrollTop](value) {
      if (value == null) dart.nullFailed(I[166], 13961, 21, "value");
      this.scrollTop = value[$round]();
    }
    get [S.$scrollWidth]() {
      return this.scrollWidth[$round]();
    }
    [S.$requestFullscreen](options = null) {
      let retValue = null;
      if (options != null) {
        retValue = (this.requestFullscreen || this.webkitRequestFullscreen).call(this, html_common.convertDartToNative_Dictionary(options));
      } else {
        retValue = (this.requestFullscreen || this.webkitRequestFullscreen).call(this);
      }
      if (retValue != null) return js_util.promiseToFuture(T$.void(), T$.Object()[_as](retValue));
      return G.FutureOfvoid().value();
    }
    static ['_#_#tearOff']() {
      return html$.Element.__();
    }
    get [S.$contentEditable]() {
      return this.contentEditable;
    }
    set [S.$contentEditable](value) {
      this.contentEditable = value;
    }
    get [S.$dir]() {
      return this.dir;
    }
    set [S.$dir](value) {
      this.dir = value;
    }
    get [S.$draggable]() {
      return this.draggable;
    }
    set [S.$draggable](value) {
      this.draggable = value;
    }
    get [S.$hidden]() {
      return this.hidden;
    }
    set [S.$hidden](value) {
      this.hidden = value;
    }
    get [S.$inert]() {
      return this.inert;
    }
    set [S.$inert](value) {
      this.inert = value;
    }
    get [S.$inputMode]() {
      return this.inputMode;
    }
    set [S.$inputMode](value) {
      this.inputMode = value;
    }
    get [S.$isContentEditable]() {
      return this.isContentEditable;
    }
    get [S.$lang]() {
      return this.lang;
    }
    set [S.$lang](value) {
      this.lang = value;
    }
    get [S.$spellcheck]() {
      return this.spellcheck;
    }
    set [S.$spellcheck](value) {
      this.spellcheck = value;
    }
    get [S.$style]() {
      return this.style;
    }
    get [S.$tabIndex]() {
      return this.tabIndex;
    }
    set [S.$tabIndex](value) {
      this.tabIndex = value;
    }
    get [S.$title]() {
      return this.title;
    }
    set [S.$title](value) {
      this.title = value;
    }
    get [S.$translate]() {
      return this.translate;
    }
    set [S.$translate](value) {
      this.translate = value;
    }
    [S.$blur](...args) {
      return this.blur.apply(this, args);
    }
    [S.$click](...args) {
      return this.click.apply(this, args);
    }
    [S.$focus](...args) {
      return this.focus.apply(this, args);
    }
    get [S.$accessibleNode]() {
      return this.accessibleNode;
    }
    get [S.$assignedSlot]() {
      return this.assignedSlot;
    }
    get [S._attributes$1]() {
      return this.attributes;
    }
    get [S.$className]() {
      return this.className;
    }
    set [S.$className](value) {
      this.className = value;
    }
    get [S.$clientHeight]() {
      return this.clientHeight;
    }
    get [S.$clientLeft]() {
      return this.clientLeft;
    }
    get [S.$clientTop]() {
      return this.clientTop;
    }
    get [S.$clientWidth]() {
      return this.clientWidth;
    }
    get [S.$computedName]() {
      return this.computedName;
    }
    get [S.$computedRole]() {
      return this.computedRole;
    }
    get [S.$id]() {
      return this.id;
    }
    set [S.$id](value) {
      this.id = value;
    }
    get [S._innerHtml]() {
      return this.innerHTML;
    }
    set [S._innerHtml](value) {
      this.innerHTML = value;
    }
    get [S._localName]() {
      return this.localName;
    }
    get [S._namespaceUri]() {
      return this.namespaceURI;
    }
    get [S.$outerHtml]() {
      return this.outerHTML;
    }
    get [S._scrollHeight]() {
      return this.scrollHeight;
    }
    get [S._scrollLeft]() {
      return this.scrollLeft;
    }
    set [S._scrollLeft](value) {
      this.scrollLeft = value;
    }
    get [S._scrollTop]() {
      return this.scrollTop;
    }
    set [S._scrollTop](value) {
      this.scrollTop = value;
    }
    get [S._scrollWidth]() {
      return this.scrollWidth;
    }
    get [S.$slot]() {
      return this.slot;
    }
    set [S.$slot](value) {
      this.slot = value;
    }
    get [S.$styleMap]() {
      return this.styleMap;
    }
    get [S.$tagName]() {
      return this.tagName;
    }
    [S.$attachShadow](shadowRootInitDict) {
      if (shadowRootInitDict == null) dart.nullFailed(I[166], 14719, 31, "shadowRootInitDict");
      let shadowRootInitDict_1 = html_common.convertDartToNative_Dictionary(shadowRootInitDict);
      return this[S._attachShadow_1](shadowRootInitDict_1);
    }
    [S._attachShadow_1](...args) {
      return this.attachShadow.apply(this, args);
    }
    [S.$closest](...args) {
      return this.closest.apply(this, args);
    }
    [S.$getAnimations](...args) {
      return this.getAnimations.apply(this, args);
    }
    [S._getAttribute](...args) {
      return this.getAttribute.apply(this, args);
    }
    [S._getAttributeNS](...args) {
      return this.getAttributeNS.apply(this, args);
    }
    [S.$getAttributeNames](...args) {
      return this.getAttributeNames.apply(this, args);
    }
    [S.$getBoundingClientRect](...args) {
      return this.getBoundingClientRect.apply(this, args);
    }
    [S._getClientRects](...args) {
      return this.getClientRects.apply(this, args);
    }
    [S.$getDestinationInsertionPoints](...args) {
      return this.getDestinationInsertionPoints.apply(this, args);
    }
    [S.$getElementsByClassName](...args) {
      return this.getElementsByClassName.apply(this, args);
    }
    [S._getElementsByTagName](...args) {
      return this.getElementsByTagName.apply(this, args);
    }
    [S._hasAttribute](...args) {
      return this.hasAttribute.apply(this, args);
    }
    [S._hasAttributeNS](...args) {
      return this.hasAttributeNS.apply(this, args);
    }
    [S.$hasPointerCapture](...args) {
      return this.hasPointerCapture.apply(this, args);
    }
    [S.$releasePointerCapture](...args) {
      return this.releasePointerCapture.apply(this, args);
    }
    [S._removeAttribute](...args) {
      return this.removeAttribute.apply(this, args);
    }
    [S._removeAttributeNS](...args) {
      return this.removeAttributeNS.apply(this, args);
    }
    [S.$requestPointerLock](...args) {
      return this.requestPointerLock.apply(this, args);
    }
    [S.$scroll](options_OR_x = null, y = null) {
      if (options_OR_x == null && y == null) {
        this[S._scroll_1]();
        return;
      }
      if (T$.Map()[_is](options_OR_x) && y == null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options_OR_x);
        this[S._scroll_2](options_1);
        return;
      }
      if (y != null && typeof options_OR_x == 'number') {
        this[S._scroll_3](options_OR_x, y);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S._scroll_1](...args) {
      return this.scroll.apply(this, args);
    }
    [S._scroll_2](...args) {
      return this.scroll.apply(this, args);
    }
    [S._scroll_3](...args) {
      return this.scroll.apply(this, args);
    }
    [S.$scrollBy](options_OR_x = null, y = null) {
      if (options_OR_x == null && y == null) {
        this[S._scrollBy_1]();
        return;
      }
      if (T$.Map()[_is](options_OR_x) && y == null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options_OR_x);
        this[S._scrollBy_2](options_1);
        return;
      }
      if (y != null && typeof options_OR_x == 'number') {
        this[S._scrollBy_3](options_OR_x, y);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S._scrollBy_1](...args) {
      return this.scrollBy.apply(this, args);
    }
    [S._scrollBy_2](...args) {
      return this.scrollBy.apply(this, args);
    }
    [S._scrollBy_3](...args) {
      return this.scrollBy.apply(this, args);
    }
    [S._scrollIntoView](...args) {
      return this.scrollIntoView.apply(this, args);
    }
    [S.$scrollIntoViewIfNeeded](...args) {
      return this.scrollIntoViewIfNeeded.apply(this, args);
    }
    [S.$scrollTo](options_OR_x = null, y = null) {
      if (options_OR_x == null && y == null) {
        this[S._scrollTo_1]();
        return;
      }
      if (T$.Map()[_is](options_OR_x) && y == null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options_OR_x);
        this[S._scrollTo_2](options_1);
        return;
      }
      if (y != null && typeof options_OR_x == 'number') {
        this[S._scrollTo_3](options_OR_x, y);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S._scrollTo_1](...args) {
      return this.scrollTo.apply(this, args);
    }
    [S._scrollTo_2](...args) {
      return this.scrollTo.apply(this, args);
    }
    [S._scrollTo_3](...args) {
      return this.scrollTo.apply(this, args);
    }
    [S._setAttribute](...args) {
      return this.setAttribute.apply(this, args);
    }
    [S._setAttributeNS](...args) {
      return this.setAttributeNS.apply(this, args);
    }
    [S.$setPointerCapture](...args) {
      return this.setPointerCapture.apply(this, args);
    }
    [S.$after](...args) {
      return this.after.apply(this, args);
    }
    [S.$before](...args) {
      return this.before.apply(this, args);
    }
    get [S.$nextElementSibling]() {
      return this.nextElementSibling;
    }
    get [S.$previousElementSibling]() {
      return this.previousElementSibling;
    }
    get [S._childElementCount]() {
      return this.childElementCount;
    }
    get [S._firstElementChild]() {
      return this.firstElementChild;
    }
    get [S._lastElementChild]() {
      return this.lastElementChild;
    }
    [S.$querySelector](...args) {
      return this.querySelector.apply(this, args);
    }
    [S._querySelectorAll](...args) {
      return this.querySelectorAll.apply(this, args);
    }
    get [S.$onAbort]() {
      return html$.Element.abortEvent.forElement(this);
    }
    get [S.$onBeforeCopy]() {
      return html$.Element.beforeCopyEvent.forElement(this);
    }
    get [S.$onBeforeCut]() {
      return html$.Element.beforeCutEvent.forElement(this);
    }
    get [S.$onBeforePaste]() {
      return html$.Element.beforePasteEvent.forElement(this);
    }
    get [S.$onBlur]() {
      return html$.Element.blurEvent.forElement(this);
    }
    get [S.$onCanPlay]() {
      return html$.Element.canPlayEvent.forElement(this);
    }
    get [S.$onCanPlayThrough]() {
      return html$.Element.canPlayThroughEvent.forElement(this);
    }
    get [S.$onChange]() {
      return html$.Element.changeEvent.forElement(this);
    }
    get [S.$onClick]() {
      return html$.Element.clickEvent.forElement(this);
    }
    get [S.$onContextMenu]() {
      return html$.Element.contextMenuEvent.forElement(this);
    }
    get [S.$onCopy]() {
      return html$.Element.copyEvent.forElement(this);
    }
    get [S.$onCut]() {
      return html$.Element.cutEvent.forElement(this);
    }
    get [S.$onDoubleClick]() {
      return html$.Element.doubleClickEvent.forElement(this);
    }
    get [S.$onDrag]() {
      return html$.Element.dragEvent.forElement(this);
    }
    get [S.$onDragEnd]() {
      return html$.Element.dragEndEvent.forElement(this);
    }
    get [S.$onDragEnter]() {
      return html$.Element.dragEnterEvent.forElement(this);
    }
    get [S.$onDragLeave]() {
      return html$.Element.dragLeaveEvent.forElement(this);
    }
    get [S.$onDragOver]() {
      return html$.Element.dragOverEvent.forElement(this);
    }
    get [S.$onDragStart]() {
      return html$.Element.dragStartEvent.forElement(this);
    }
    get [S.$onDrop]() {
      return html$.Element.dropEvent.forElement(this);
    }
    get [S.$onDurationChange]() {
      return html$.Element.durationChangeEvent.forElement(this);
    }
    get [S.$onEmptied]() {
      return html$.Element.emptiedEvent.forElement(this);
    }
    get [S.$onEnded]() {
      return html$.Element.endedEvent.forElement(this);
    }
    get [S.$onError]() {
      return html$.Element.errorEvent.forElement(this);
    }
    get [S.$onFocus]() {
      return html$.Element.focusEvent.forElement(this);
    }
    get [S.$onInput]() {
      return html$.Element.inputEvent.forElement(this);
    }
    get [S.$onInvalid]() {
      return html$.Element.invalidEvent.forElement(this);
    }
    get [S.$onKeyDown]() {
      return html$.Element.keyDownEvent.forElement(this);
    }
    get [S.$onKeyPress]() {
      return html$.Element.keyPressEvent.forElement(this);
    }
    get [S.$onKeyUp]() {
      return html$.Element.keyUpEvent.forElement(this);
    }
    get [S.$onLoad]() {
      return html$.Element.loadEvent.forElement(this);
    }
    get [S.$onLoadedData]() {
      return html$.Element.loadedDataEvent.forElement(this);
    }
    get [S.$onLoadedMetadata]() {
      return html$.Element.loadedMetadataEvent.forElement(this);
    }
    get [S.$onMouseDown]() {
      return html$.Element.mouseDownEvent.forElement(this);
    }
    get [S.$onMouseEnter]() {
      return html$.Element.mouseEnterEvent.forElement(this);
    }
    get [S.$onMouseLeave]() {
      return html$.Element.mouseLeaveEvent.forElement(this);
    }
    get [S.$onMouseMove]() {
      return html$.Element.mouseMoveEvent.forElement(this);
    }
    get [S$.$onMouseOut]() {
      return html$.Element.mouseOutEvent.forElement(this);
    }
    get [S$.$onMouseOver]() {
      return html$.Element.mouseOverEvent.forElement(this);
    }
    get [S$.$onMouseUp]() {
      return html$.Element.mouseUpEvent.forElement(this);
    }
    get [S$.$onMouseWheel]() {
      return html$.Element.mouseWheelEvent.forElement(this);
    }
    get [S$.$onPaste]() {
      return html$.Element.pasteEvent.forElement(this);
    }
    get [S$.$onPause]() {
      return html$.Element.pauseEvent.forElement(this);
    }
    get [S$.$onPlay]() {
      return html$.Element.playEvent.forElement(this);
    }
    get [S$.$onPlaying]() {
      return html$.Element.playingEvent.forElement(this);
    }
    get [S$.$onRateChange]() {
      return html$.Element.rateChangeEvent.forElement(this);
    }
    get [S$.$onReset]() {
      return html$.Element.resetEvent.forElement(this);
    }
    get [S$.$onResize]() {
      return html$.Element.resizeEvent.forElement(this);
    }
    get [S$.$onScroll]() {
      return html$.Element.scrollEvent.forElement(this);
    }
    get [S$.$onSearch]() {
      return html$.Element.searchEvent.forElement(this);
    }
    get [S$.$onSeeked]() {
      return html$.Element.seekedEvent.forElement(this);
    }
    get [S$.$onSeeking]() {
      return html$.Element.seekingEvent.forElement(this);
    }
    get [S$.$onSelect]() {
      return html$.Element.selectEvent.forElement(this);
    }
    get [S$.$onSelectStart]() {
      return html$.Element.selectStartEvent.forElement(this);
    }
    get [S$.$onStalled]() {
      return html$.Element.stalledEvent.forElement(this);
    }
    get [S$.$onSubmit]() {
      return html$.Element.submitEvent.forElement(this);
    }
    get [S$.$onSuspend]() {
      return html$.Element.suspendEvent.forElement(this);
    }
    get [S$.$onTimeUpdate]() {
      return html$.Element.timeUpdateEvent.forElement(this);
    }
    get [S$.$onTouchCancel]() {
      return html$.Element.touchCancelEvent.forElement(this);
    }
    get [S$.$onTouchEnd]() {
      return html$.Element.touchEndEvent.forElement(this);
    }
    get [S$.$onTouchEnter]() {
      return html$.Element.touchEnterEvent.forElement(this);
    }
    get [S$.$onTouchLeave]() {
      return html$.Element.touchLeaveEvent.forElement(this);
    }
    get [S$.$onTouchMove]() {
      return html$.Element.touchMoveEvent.forElement(this);
    }
    get [S$.$onTouchStart]() {
      return html$.Element.touchStartEvent.forElement(this);
    }
    get [S$.$onTransitionEnd]() {
      return html$.Element.transitionEndEvent.forElement(this);
    }
    get [S$.$onVolumeChange]() {
      return html$.Element.volumeChangeEvent.forElement(this);
    }
    get [S$.$onWaiting]() {
      return html$.Element.waitingEvent.forElement(this);
    }
    get [S$.$onFullscreenChange]() {
      return html$.Element.fullscreenChangeEvent.forElement(this);
    }
    get [S$.$onFullscreenError]() {
      return html$.Element.fullscreenErrorEvent.forElement(this);
    }
    get [S$.$onWheel]() {
      return html$.Element.wheelEvent.forElement(this);
    }
  };
  (html$.Element.created = function() {
    dart.global.Object.getPrototypeOf(html$.Element)._created.call(this);
    ;
  }).prototype = html$.Element.prototype;
  dart.addRtiResources(html$.Element, ["html|Element", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "_interceptors|JavaScriptObject", "html|EventTarget", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.Element, () => dart.global.Object.setPrototypeOf({
    [S.$getAttribute]: T$.StringToStringN(),
    [S.$getAttributeNS]: T$3.StringNAndStringToStringN(),
    [S.$hasAttribute]: T$.StringTobool(),
    [S.$hasAttributeNS]: T$3.StringNAndStringTobool(),
    [S.$removeAttribute]: T$.StringTovoid(),
    [S.$removeAttributeNS]: T$3.StringNAndStringTovoid(),
    [S.$setAttribute]: T$3.StringAndObjectTovoid(),
    [S.$setAttributeNS]: T$3.StringNAndStringAndObjectTovoid(),
    [S.$querySelectorAll]: T$3.StringToElementListOfT(),
    [S._setApplyScroll]: T$3.FnAndStringTovoid(),
    [S.$setApplyScroll]: T$3.StringToFutureOfScrollState(),
    [S._setDistributeScroll]: T$3.FnAndStringTovoid(),
    [S.$setDistributeScroll]: T$3.StringToFutureOfScrollState(),
    [S.$getNamespacedAttributes]: T$3.StringToMapOfString$String(),
    [S.$getComputedStyle]: T$3.StringNToCssStyleDeclaration(),
    [S.$appendText]: T$.StringTovoid(),
    [S.$appendHtml]: T$3.String__Tovoid$5(),
    [S.$attached]: T$.VoidTovoid(),
    [S.$detached]: T$.VoidTovoid(),
    [S.$enteredView]: T$.VoidTovoid(),
    [S.$getClientRects]: T$3.VoidToListOfRectangleOfnum(),
    [S.$leftView]: T$.VoidTovoid(),
    [S.$animate]: T$3.IterableOfMapOfString$dynamicAnddynamicToAnimation(),
    [S._animate]: T$3.ObjectAnddynamicToAnimation(),
    [S.$attributeChanged]: T$3.StringAndStringAndStringTovoid(),
    [S.$scrollIntoView]: T$3.ScrollAlignmentNTovoid(),
    [S.$insertAdjacentText]: T$2.StringAndStringTovoid(),
    [S._insertAdjacentText]: T$2.StringAndStringTovoid(),
    [S.$insertAdjacentHtml]: T$3.StringAndString__Tovoid(),
    [S._insertAdjacentHtml]: T$2.StringAndStringTovoid(),
    [S.$insertAdjacentElement]: T$3.StringAndElementToElement(),
    [S._insertAdjacentElement]: T$3.StringAndElementTovoid(),
    [S._insertAdjacentNode]: T$3.StringAndNodeTovoid(),
    [S.$matches]: T$.StringTobool(),
    [S.$matchesWithAncestors]: T$.StringTobool(),
    [S.$createShadowRoot]: T$3.VoidToShadowRoot(),
    [S.$offsetTo]: T$4.ElementToPointOfnum(),
    [S.$createFragment]: T$4.StringN__ToDocumentFragment(),
    [S.$setInnerHtml]: T$4.StringN__Tovoid(),
    [S.$requestFullscreen]: T$4.MapNToFutureOfvoid(),
    [S.$blur]: T$.VoidTovoid(),
    [S.$click]: T$.VoidTovoid(),
    [S.$focus]: T$.VoidTovoid(),
    [S.$attachShadow]: T$4.MapToShadowRoot(),
    [S._attachShadow_1]: T$4.dynamicToShadowRoot(),
    [S.$closest]: T$4.StringToElementN(),
    [S.$getAnimations]: T$4.VoidToListOfAnimation(),
    [S._getAttribute]: T$.StringToStringN(),
    [S._getAttributeNS]: T$3.StringNAndStringToStringN(),
    [S.$getAttributeNames]: T$2.VoidToListOfString(),
    [S.$getBoundingClientRect]: T$4.VoidToRectangleOfnum(),
    [S._getClientRects]: T$3.VoidToListOfRectangleOfnum(),
    [S.$getDestinationInsertionPoints]: T$4.VoidToListOfNode(),
    [S.$getElementsByClassName]: T$4.StringToListOfNode(),
    [S._getElementsByTagName]: T$4.StringToListOfNode(),
    [S._hasAttribute]: T$.StringTobool(),
    [S._hasAttributeNS]: T$3.StringNAndStringTobool(),
    [S.$hasPointerCapture]: T$.intTobool(),
    [S.$releasePointerCapture]: T$.intTovoid(),
    [S._removeAttribute]: T$.StringTovoid(),
    [S._removeAttributeNS]: T$3.StringNAndStringTovoid(),
    [S.$requestPointerLock]: T$.VoidTovoid(),
    [S.$scroll]: T$4.dynamicAndnumNTovoid(),
    [S._scroll_1]: T$.VoidTovoid(),
    [S._scroll_2]: T$.dynamicTovoid(),
    [S._scroll_3]: T$4.numNAnddynamicTovoid(),
    [S.$scrollBy]: T$4.dynamicAndnumNTovoid(),
    [S._scrollBy_1]: T$.VoidTovoid(),
    [S._scrollBy_2]: T$.dynamicTovoid(),
    [S._scrollBy_3]: T$4.numNAnddynamicTovoid(),
    [S._scrollIntoView]: T$0.ObjectNTovoid$1(),
    [S.$scrollIntoViewIfNeeded]: T$4.boolNTovoid(),
    [S.$scrollTo]: T$4.dynamicAndnumNTovoid(),
    [S._scrollTo_1]: T$.VoidTovoid(),
    [S._scrollTo_2]: T$.dynamicTovoid(),
    [S._scrollTo_3]: T$4.numNAnddynamicTovoid(),
    [S._setAttribute]: T$3.StringAndObjectTovoid(),
    [S._setAttributeNS]: T$3.StringNAndStringAndObjectTovoid(),
    [S.$setPointerCapture]: T$.intTovoid(),
    [S.$after]: T$.ObjectTovoid(),
    [S.$before]: T$.ObjectTovoid(),
    [S.$querySelector]: T$4.StringToElementN(),
    [S._querySelectorAll]: T$4.StringToListOfNode()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Element))));
  dart.setMethodsDefaultTypeArgSignature(html$.Element, () => dart.global.Object.setPrototypeOf({[S.$querySelectorAll]: [T$3.Element()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(html$.Element))));
  dart.setStaticMethodSignature(html$.Element, () => ['html', 'tag', 'a', 'article', 'aside', 'audio', 'br', 'canvas', 'div', 'footer', 'header', 'hr', 'iframe', 'img', 'li', 'nav', 'ol', 'option', 'p', 'pre', 'section', 'select', 'span', 'svg', 'table', 'td', 'textarea', 'th', 'tr', 'ul', 'video', 'isTagSupported', '_determineMouseWheelEventType', '_determineTransitionEventType', '_offsetToHelper', '_hasCorruptedAttributes', '_hasCorruptedAttributesAdditionalCheck', '_safeTagName', '__']);
  dart.setGetterSignature(html$.Element, () => dart.global.Object.setPrototypeOf({
    [S.$attributes]: T$2.MapOfString$String(),
    [S.$children]: T$3.ListOfElement(),
    [S._children]: T$3.ListOfNode$1(),
    [S.$classes]: T$3.CssClassSet(),
    [S.$dataset]: T$2.MapOfString$String(),
    [S.$client]: T$3.RectangleOfnum(),
    [S.$offset]: T$3.RectangleOfnum(),
    [S.$localName]: T$.String(),
    [S.$namespaceUri]: T$.StringN(),
    [S.$shadowRoot]: T$3.ShadowRootN(),
    [S.$contentEdge]: T$3.CssRect(),
    [S.$paddingEdge]: T$3.CssRect(),
    [S.$borderEdge]: T$3.CssRect(),
    [S.$marginEdge]: T$3.CssRect(),
    [S.$documentOffset]: T$3.PointOfnum(),
    [S._canBeUsedToCreateContextualFragment]: T$.bool(),
    [S._cannotBeUsedToCreateContextualFragment]: T$.bool(),
    [S.$innerHtml]: T$.StringN(),
    [S.$innerText]: T$.String(),
    [S.$on]: T$4.ElementEvents(),
    [S.$offsetParent]: T$3.ElementN(),
    [S.$offsetHeight]: T$.int(),
    [S.$offsetLeft]: T$.int(),
    [S.$offsetTop]: T$.int(),
    [S.$offsetWidth]: T$.int(),
    [S.$scrollHeight]: T$.int(),
    [S.$scrollLeft]: T$.int(),
    [S.$scrollTop]: T$.int(),
    [S.$scrollWidth]: T$.int(),
    [S.$contentEditable]: T$.String(),
    [S.$dir]: T$.StringN(),
    [S.$draggable]: T$.bool(),
    [S.$hidden]: T$.bool(),
    [S.$inert]: T$.boolN(),
    [S.$inputMode]: T$.StringN(),
    [S.$isContentEditable]: T$.boolN(),
    [S.$lang]: T$.StringN(),
    [S.$spellcheck]: T$.boolN(),
    [S.$style]: T$4.CssStyleDeclaration(),
    [S.$tabIndex]: T$.intN(),
    [S.$title]: T$.StringN(),
    [S.$translate]: T$.boolN(),
    [S.$accessibleNode]: T$4.AccessibleNodeN(),
    [S.$assignedSlot]: T$4.SlotElementN(),
    [S._attributes$1]: T$4._NamedNodeMapN(),
    [S.$className]: T$.String(),
    [S.$clientHeight]: T$.int(),
    [S.$clientLeft]: T$.intN(),
    [S.$clientTop]: T$.intN(),
    [S.$clientWidth]: T$.int(),
    [S.$computedName]: T$.StringN(),
    [S.$computedRole]: T$.StringN(),
    [S.$id]: T$.String(),
    [S._innerHtml]: T$.StringN(),
    [S._localName]: T$.StringN(),
    [S._namespaceUri]: T$.StringN(),
    [S.$outerHtml]: T$.StringN(),
    [S._scrollHeight]: T$.intN(),
    [S._scrollLeft]: T$.num(),
    [S._scrollTop]: T$.num(),
    [S._scrollWidth]: T$.intN(),
    [S.$slot]: T$.StringN(),
    [S.$styleMap]: T$4.StylePropertyMapN(),
    [S.$tagName]: T$.String(),
    [S.$nextElementSibling]: T$3.ElementN(),
    [S.$previousElementSibling]: T$3.ElementN(),
    [S._childElementCount]: T$.int(),
    [S._firstElementChild]: T$3.ElementN(),
    [S._lastElementChild]: T$3.ElementN(),
    [S.$onAbort]: T$4.ElementStreamOfEvent(),
    [S.$onBeforeCopy]: T$4.ElementStreamOfEvent(),
    [S.$onBeforeCut]: T$4.ElementStreamOfEvent(),
    [S.$onBeforePaste]: T$4.ElementStreamOfEvent(),
    [S.$onBlur]: T$4.ElementStreamOfEvent(),
    [S.$onCanPlay]: T$4.ElementStreamOfEvent(),
    [S.$onCanPlayThrough]: T$4.ElementStreamOfEvent(),
    [S.$onChange]: T$4.ElementStreamOfEvent(),
    [S.$onClick]: T$4.ElementStreamOfMouseEvent(),
    [S.$onContextMenu]: T$4.ElementStreamOfMouseEvent(),
    [S.$onCopy]: T$4.ElementStreamOfClipboardEvent(),
    [S.$onCut]: T$4.ElementStreamOfClipboardEvent(),
    [S.$onDoubleClick]: T$4.ElementStreamOfEvent(),
    [S.$onDrag]: T$4.ElementStreamOfMouseEvent(),
    [S.$onDragEnd]: T$4.ElementStreamOfMouseEvent(),
    [S.$onDragEnter]: T$4.ElementStreamOfMouseEvent(),
    [S.$onDragLeave]: T$4.ElementStreamOfMouseEvent(),
    [S.$onDragOver]: T$4.ElementStreamOfMouseEvent(),
    [S.$onDragStart]: T$4.ElementStreamOfMouseEvent(),
    [S.$onDrop]: T$4.ElementStreamOfMouseEvent(),
    [S.$onDurationChange]: T$4.ElementStreamOfEvent(),
    [S.$onEmptied]: T$4.ElementStreamOfEvent(),
    [S.$onEnded]: T$4.ElementStreamOfEvent(),
    [S.$onError]: T$4.ElementStreamOfEvent(),
    [S.$onFocus]: T$4.ElementStreamOfEvent(),
    [S.$onInput]: T$4.ElementStreamOfEvent(),
    [S.$onInvalid]: T$4.ElementStreamOfEvent(),
    [S.$onKeyDown]: T$4.ElementStreamOfKeyboardEvent(),
    [S.$onKeyPress]: T$4.ElementStreamOfKeyboardEvent(),
    [S.$onKeyUp]: T$4.ElementStreamOfKeyboardEvent(),
    [S.$onLoad]: T$4.ElementStreamOfEvent(),
    [S.$onLoadedData]: T$4.ElementStreamOfEvent(),
    [S.$onLoadedMetadata]: T$4.ElementStreamOfEvent(),
    [S.$onMouseDown]: T$4.ElementStreamOfMouseEvent(),
    [S.$onMouseEnter]: T$4.ElementStreamOfMouseEvent(),
    [S.$onMouseLeave]: T$4.ElementStreamOfMouseEvent(),
    [S.$onMouseMove]: T$4.ElementStreamOfMouseEvent(),
    [S$.$onMouseOut]: T$4.ElementStreamOfMouseEvent(),
    [S$.$onMouseOver]: T$4.ElementStreamOfMouseEvent(),
    [S$.$onMouseUp]: T$4.ElementStreamOfMouseEvent(),
    [S$.$onMouseWheel]: T$4.ElementStreamOfWheelEvent(),
    [S$.$onPaste]: T$4.ElementStreamOfClipboardEvent(),
    [S$.$onPause]: T$4.ElementStreamOfEvent(),
    [S$.$onPlay]: T$4.ElementStreamOfEvent(),
    [S$.$onPlaying]: T$4.ElementStreamOfEvent(),
    [S$.$onRateChange]: T$4.ElementStreamOfEvent(),
    [S$.$onReset]: T$4.ElementStreamOfEvent(),
    [S$.$onResize]: T$4.ElementStreamOfEvent(),
    [S$.$onScroll]: T$4.ElementStreamOfEvent(),
    [S$.$onSearch]: T$4.ElementStreamOfEvent(),
    [S$.$onSeeked]: T$4.ElementStreamOfEvent(),
    [S$.$onSeeking]: T$4.ElementStreamOfEvent(),
    [S$.$onSelect]: T$4.ElementStreamOfEvent(),
    [S$.$onSelectStart]: T$4.ElementStreamOfEvent(),
    [S$.$onStalled]: T$4.ElementStreamOfEvent(),
    [S$.$onSubmit]: T$4.ElementStreamOfEvent(),
    [S$.$onSuspend]: T$4.ElementStreamOfEvent(),
    [S$.$onTimeUpdate]: T$4.ElementStreamOfEvent(),
    [S$.$onTouchCancel]: T$4.ElementStreamOfTouchEvent(),
    [S$.$onTouchEnd]: T$4.ElementStreamOfTouchEvent(),
    [S$.$onTouchEnter]: T$4.ElementStreamOfTouchEvent(),
    [S$.$onTouchLeave]: T$4.ElementStreamOfTouchEvent(),
    [S$.$onTouchMove]: T$4.ElementStreamOfTouchEvent(),
    [S$.$onTouchStart]: T$4.ElementStreamOfTouchEvent(),
    [S$.$onTransitionEnd]: T$4.ElementStreamOfTransitionEvent(),
    [S$.$onVolumeChange]: T$4.ElementStreamOfEvent(),
    [S$.$onWaiting]: T$4.ElementStreamOfEvent(),
    [S$.$onFullscreenChange]: T$4.ElementStreamOfEvent(),
    [S$.$onFullscreenError]: T$4.ElementStreamOfEvent(),
    [S$.$onWheel]: T$4.ElementStreamOfWheelEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Element))));
  dart.setSetterSignature(html$.Element, () => dart.global.Object.setPrototypeOf({
    [S.$attributes]: T$2.MapOfString$String(),
    [S.$children]: T$3.ListOfElement(),
    [S.$classes]: T$0.IterableOfString(),
    [S.$dataset]: T$2.MapOfString$String(),
    [S.$innerHtml]: T$.StringN(),
    [S.$innerText]: T$.String(),
    [S.$scrollLeft]: T$.int(),
    [S.$scrollTop]: T$.int(),
    [S.$contentEditable]: T$.String(),
    [S.$dir]: T$.StringN(),
    [S.$draggable]: T$.bool(),
    [S.$hidden]: T$.bool(),
    [S.$inert]: T$.boolN(),
    [S.$inputMode]: T$.StringN(),
    [S.$lang]: T$.StringN(),
    [S.$spellcheck]: T$.boolN(),
    [S.$tabIndex]: T$.intN(),
    [S.$title]: T$.StringN(),
    [S.$translate]: T$.boolN(),
    [S.$className]: T$.String(),
    [S.$id]: T$.String(),
    [S._innerHtml]: T$.StringN(),
    [S._scrollLeft]: T$.num(),
    [S._scrollTop]: T$.num(),
    [S.$slot]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Element))));
  dart.setLibraryUri(html$.Element, I[167]);
  dart.setStaticFieldSignature(html$.Element, () => ['mouseWheelEvent', 'transitionEndEvent', '_parseDocument', '_parseRange', '_defaultValidator', '_defaultSanitizer', '_tagsForWhichCreateContextualFragmentIsNotSupported', 'abortEvent', 'beforeCopyEvent', 'beforeCutEvent', 'beforePasteEvent', 'blurEvent', 'canPlayEvent', 'canPlayThroughEvent', 'changeEvent', 'clickEvent', 'contextMenuEvent', 'copyEvent', 'cutEvent', 'doubleClickEvent', 'dragEvent', 'dragEndEvent', 'dragEnterEvent', 'dragLeaveEvent', 'dragOverEvent', 'dragStartEvent', 'dropEvent', 'durationChangeEvent', 'emptiedEvent', 'endedEvent', 'errorEvent', 'focusEvent', 'inputEvent', 'invalidEvent', 'keyDownEvent', 'keyPressEvent', 'keyUpEvent', 'loadEvent', 'loadedDataEvent', 'loadedMetadataEvent', 'mouseDownEvent', 'mouseEnterEvent', 'mouseLeaveEvent', 'mouseMoveEvent', 'mouseOutEvent', 'mouseOverEvent', 'mouseUpEvent', 'pasteEvent', 'pauseEvent', 'playEvent', 'playingEvent', 'rateChangeEvent', 'resetEvent', 'resizeEvent', 'scrollEvent', 'searchEvent', 'seekedEvent', 'seekingEvent', 'selectEvent', 'selectStartEvent', 'stalledEvent', 'submitEvent', 'suspendEvent', 'timeUpdateEvent', 'touchCancelEvent', 'touchEndEvent', 'touchEnterEvent', 'touchLeaveEvent', 'touchMoveEvent', 'touchStartEvent', 'volumeChangeEvent', 'waitingEvent', 'fullscreenChangeEvent', 'fullscreenErrorEvent', 'wheelEvent']);
  dart.defineLazy(html$.Element, {
    /*html$.Element.mouseWheelEvent*/get mouseWheelEvent() {
      return C[276] || CT.C276;
    },
    /*html$.Element.transitionEndEvent*/get transitionEndEvent() {
      return C[278] || CT.C278;
    },
    /*html$.Element._parseDocument*/get _parseDocument() {
      return null;
    },
    set _parseDocument(value) {},
    /*html$.Element._parseRange*/get _parseRange() {
      return null;
    },
    set _parseRange(value) {},
    /*html$.Element._defaultValidator*/get _defaultValidator() {
      return null;
    },
    set _defaultValidator(value) {},
    /*html$.Element._defaultSanitizer*/get _defaultSanitizer() {
      return null;
    },
    set _defaultSanitizer(value) {},
    /*html$.Element._tagsForWhichCreateContextualFragmentIsNotSupported*/get _tagsForWhichCreateContextualFragmentIsNotSupported() {
      return C[280] || CT.C280;
    },
    /*html$.Element.abortEvent*/get abortEvent() {
      return C[265] || CT.C265;
    },
    /*html$.Element.beforeCopyEvent*/get beforeCopyEvent() {
      return C[281] || CT.C281;
    },
    /*html$.Element.beforeCutEvent*/get beforeCutEvent() {
      return C[282] || CT.C282;
    },
    /*html$.Element.beforePasteEvent*/get beforePasteEvent() {
      return C[283] || CT.C283;
    },
    /*html$.Element.blurEvent*/get blurEvent() {
      return C[284] || CT.C284;
    },
    /*html$.Element.canPlayEvent*/get canPlayEvent() {
      return C[285] || CT.C285;
    },
    /*html$.Element.canPlayThroughEvent*/get canPlayThroughEvent() {
      return C[286] || CT.C286;
    },
    /*html$.Element.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    },
    /*html$.Element.clickEvent*/get clickEvent() {
      return C[288] || CT.C288;
    },
    /*html$.Element.contextMenuEvent*/get contextMenuEvent() {
      return C[289] || CT.C289;
    },
    /*html$.Element.copyEvent*/get copyEvent() {
      return C[290] || CT.C290;
    },
    /*html$.Element.cutEvent*/get cutEvent() {
      return C[291] || CT.C291;
    },
    /*html$.Element.doubleClickEvent*/get doubleClickEvent() {
      return C[292] || CT.C292;
    },
    /*html$.Element.dragEvent*/get dragEvent() {
      return C[293] || CT.C293;
    },
    /*html$.Element.dragEndEvent*/get dragEndEvent() {
      return C[294] || CT.C294;
    },
    /*html$.Element.dragEnterEvent*/get dragEnterEvent() {
      return C[295] || CT.C295;
    },
    /*html$.Element.dragLeaveEvent*/get dragLeaveEvent() {
      return C[296] || CT.C296;
    },
    /*html$.Element.dragOverEvent*/get dragOverEvent() {
      return C[297] || CT.C297;
    },
    /*html$.Element.dragStartEvent*/get dragStartEvent() {
      return C[298] || CT.C298;
    },
    /*html$.Element.dropEvent*/get dropEvent() {
      return C[299] || CT.C299;
    },
    /*html$.Element.durationChangeEvent*/get durationChangeEvent() {
      return C[300] || CT.C300;
    },
    /*html$.Element.emptiedEvent*/get emptiedEvent() {
      return C[301] || CT.C301;
    },
    /*html$.Element.endedEvent*/get endedEvent() {
      return C[302] || CT.C302;
    },
    /*html$.Element.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.Element.focusEvent*/get focusEvent() {
      return C[303] || CT.C303;
    },
    /*html$.Element.inputEvent*/get inputEvent() {
      return C[304] || CT.C304;
    },
    /*html$.Element.invalidEvent*/get invalidEvent() {
      return C[305] || CT.C305;
    },
    /*html$.Element.keyDownEvent*/get keyDownEvent() {
      return C[306] || CT.C306;
    },
    /*html$.Element.keyPressEvent*/get keyPressEvent() {
      return C[307] || CT.C307;
    },
    /*html$.Element.keyUpEvent*/get keyUpEvent() {
      return C[308] || CT.C308;
    },
    /*html$.Element.loadEvent*/get loadEvent() {
      return C[309] || CT.C309;
    },
    /*html$.Element.loadedDataEvent*/get loadedDataEvent() {
      return C[310] || CT.C310;
    },
    /*html$.Element.loadedMetadataEvent*/get loadedMetadataEvent() {
      return C[311] || CT.C311;
    },
    /*html$.Element.mouseDownEvent*/get mouseDownEvent() {
      return C[312] || CT.C312;
    },
    /*html$.Element.mouseEnterEvent*/get mouseEnterEvent() {
      return C[313] || CT.C313;
    },
    /*html$.Element.mouseLeaveEvent*/get mouseLeaveEvent() {
      return C[314] || CT.C314;
    },
    /*html$.Element.mouseMoveEvent*/get mouseMoveEvent() {
      return C[315] || CT.C315;
    },
    /*html$.Element.mouseOutEvent*/get mouseOutEvent() {
      return C[316] || CT.C316;
    },
    /*html$.Element.mouseOverEvent*/get mouseOverEvent() {
      return C[317] || CT.C317;
    },
    /*html$.Element.mouseUpEvent*/get mouseUpEvent() {
      return C[318] || CT.C318;
    },
    /*html$.Element.pasteEvent*/get pasteEvent() {
      return C[319] || CT.C319;
    },
    /*html$.Element.pauseEvent*/get pauseEvent() {
      return C[320] || CT.C320;
    },
    /*html$.Element.playEvent*/get playEvent() {
      return C[321] || CT.C321;
    },
    /*html$.Element.playingEvent*/get playingEvent() {
      return C[322] || CT.C322;
    },
    /*html$.Element.rateChangeEvent*/get rateChangeEvent() {
      return C[323] || CT.C323;
    },
    /*html$.Element.resetEvent*/get resetEvent() {
      return C[324] || CT.C324;
    },
    /*html$.Element.resizeEvent*/get resizeEvent() {
      return C[325] || CT.C325;
    },
    /*html$.Element.scrollEvent*/get scrollEvent() {
      return C[326] || CT.C326;
    },
    /*html$.Element.searchEvent*/get searchEvent() {
      return C[327] || CT.C327;
    },
    /*html$.Element.seekedEvent*/get seekedEvent() {
      return C[328] || CT.C328;
    },
    /*html$.Element.seekingEvent*/get seekingEvent() {
      return C[329] || CT.C329;
    },
    /*html$.Element.selectEvent*/get selectEvent() {
      return C[330] || CT.C330;
    },
    /*html$.Element.selectStartEvent*/get selectStartEvent() {
      return C[331] || CT.C331;
    },
    /*html$.Element.stalledEvent*/get stalledEvent() {
      return C[332] || CT.C332;
    },
    /*html$.Element.submitEvent*/get submitEvent() {
      return C[333] || CT.C333;
    },
    /*html$.Element.suspendEvent*/get suspendEvent() {
      return C[334] || CT.C334;
    },
    /*html$.Element.timeUpdateEvent*/get timeUpdateEvent() {
      return C[335] || CT.C335;
    },
    /*html$.Element.touchCancelEvent*/get touchCancelEvent() {
      return C[336] || CT.C336;
    },
    /*html$.Element.touchEndEvent*/get touchEndEvent() {
      return C[337] || CT.C337;
    },
    /*html$.Element.touchEnterEvent*/get touchEnterEvent() {
      return C[338] || CT.C338;
    },
    /*html$.Element.touchLeaveEvent*/get touchLeaveEvent() {
      return C[339] || CT.C339;
    },
    /*html$.Element.touchMoveEvent*/get touchMoveEvent() {
      return C[340] || CT.C340;
    },
    /*html$.Element.touchStartEvent*/get touchStartEvent() {
      return C[341] || CT.C341;
    },
    /*html$.Element.volumeChangeEvent*/get volumeChangeEvent() {
      return C[342] || CT.C342;
    },
    /*html$.Element.waitingEvent*/get waitingEvent() {
      return C[343] || CT.C343;
    },
    /*html$.Element.fullscreenChangeEvent*/get fullscreenChangeEvent() {
      return C[344] || CT.C344;
    },
    /*html$.Element.fullscreenErrorEvent*/get fullscreenErrorEvent() {
      return C[345] || CT.C345;
    },
    /*html$.Element.wheelEvent*/get wheelEvent() {
      return C[346] || CT.C346;
    }
  }, false);
  dart.registerExtension("Element", html$.Element);
  html$.HtmlElement = class HtmlElement extends html$.Element {
    static new() {
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    static ['_#new#tearOff']() {
      return html$.HtmlElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.HtmlElement.created();
    }
    get [S.$nonce]() {
      return this.nonce;
    }
    set [S.$nonce](value) {
      this.nonce = value;
    }
  };
  (html$.HtmlElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.HtmlElement).created.call(this);
    ;
  }).prototype = html$.HtmlElement.prototype;
  dart.addRtiResources(html$.HtmlElement, ["html|HtmlElement", "html|NoncedElement", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.HtmlElement, () => ['new']);
  dart.setGetterSignature(html$.HtmlElement, () => dart.global.Object.setPrototypeOf({[S.$nonce]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.HtmlElement))));
  dart.setSetterSignature(html$.HtmlElement, () => dart.global.Object.setPrototypeOf({[S.$nonce]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.HtmlElement))));
  dart.setLibraryUri(html$.HtmlElement, I[167]);
  dart.registerExtension("HTMLElement", html$.HtmlElement);
  html$.ExtendableEvent = class ExtendableEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.ExtendableEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 15886, 34, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.ExtendableEvent._create_1(type, eventInitDict_1);
      }
      return html$.ExtendableEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 15886, 34, "type");
      return html$.ExtendableEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new ExtendableEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new ExtendableEvent(type);
    }
    [S$.$waitUntil](...args) {
      return this.waitUntil.apply(this, args);
    }
  };
  dart.addRtiResources(html$.ExtendableEvent, ["html|ExtendableEvent"]);
  dart.setMethodSignature(html$.ExtendableEvent, () => dart.global.Object.setPrototypeOf({[S$.$waitUntil]: T$1.FutureTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ExtendableEvent))));
  dart.setStaticMethodSignature(html$.ExtendableEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.ExtendableEvent, I[167]);
  dart.registerExtension("ExtendableEvent", html$.ExtendableEvent);
  html$.AbortPaymentEvent = class AbortPaymentEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.AbortPaymentEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 144, 36, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 144, 46, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.AbortPaymentEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 144, 36, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 144, 46, "eventInitDict");
      return html$.AbortPaymentEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new AbortPaymentEvent(type, eventInitDict);
    }
    [S$.$respondWith](...args) {
      return this.respondWith.apply(this, args);
    }
  };
  dart.addRtiResources(html$.AbortPaymentEvent, ["html|AbortPaymentEvent"]);
  dart.setMethodSignature(html$.AbortPaymentEvent, () => dart.global.Object.setPrototypeOf({[S$.$respondWith]: T$1.FutureTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.AbortPaymentEvent))));
  dart.setStaticMethodSignature(html$.AbortPaymentEvent, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$.AbortPaymentEvent, I[167]);
  dart.registerExtension("AbortPaymentEvent", html$.AbortPaymentEvent);
  html$.Sensor = class Sensor extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.Sensor.__();
    }
    get [S$.$activated]() {
      return this.activated;
    }
    get [S$.$hasReading]() {
      return this.hasReading;
    }
    get [S$.$timestamp]() {
      return this.timestamp;
    }
    [S$.$start](...args) {
      return this.start.apply(this, args);
    }
    [S$.$stop](...args) {
      return this.stop.apply(this, args);
    }
    get [S.$onError]() {
      return html$.Sensor.errorEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.Sensor, ["html|Sensor"]);
  dart.setMethodSignature(html$.Sensor, () => dart.global.Object.setPrototypeOf({
    [S$.$start]: T$.VoidTovoid(),
    [S$.$stop]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Sensor))));
  dart.setStaticMethodSignature(html$.Sensor, () => ['__']);
  dart.setGetterSignature(html$.Sensor, () => dart.global.Object.setPrototypeOf({
    [S$.$activated]: T$.boolN(),
    [S$.$hasReading]: T$.boolN(),
    [S$.$timestamp]: T$3.numN(),
    [S.$onError]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Sensor))));
  dart.setLibraryUri(html$.Sensor, I[167]);
  dart.setStaticFieldSignature(html$.Sensor, () => ['errorEvent']);
  dart.defineLazy(html$.Sensor, {
    /*html$.Sensor.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    }
  }, false);
  dart.registerExtension("Sensor", html$.Sensor);
  html$.OrientationSensor = class OrientationSensor extends html$.Sensor {
    static ['_#_#tearOff']() {
      return html$.OrientationSensor.__();
    }
    get [S$.$quaternion]() {
      return this.quaternion;
    }
    [S$.$populateMatrix](...args) {
      return this.populateMatrix.apply(this, args);
    }
  };
  dart.addRtiResources(html$.OrientationSensor, ["html|OrientationSensor"]);
  dart.setMethodSignature(html$.OrientationSensor, () => dart.global.Object.setPrototypeOf({[S$.$populateMatrix]: T$.ObjectTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.OrientationSensor))));
  dart.setStaticMethodSignature(html$.OrientationSensor, () => ['__']);
  dart.setGetterSignature(html$.OrientationSensor, () => dart.global.Object.setPrototypeOf({[S$.$quaternion]: T$4.ListNOfnum()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.OrientationSensor))));
  dart.setLibraryUri(html$.OrientationSensor, I[167]);
  dart.registerExtension("OrientationSensor", html$.OrientationSensor);
  html$.AbsoluteOrientationSensor = class AbsoluteOrientationSensor$ extends html$.OrientationSensor {
    static ['_#_#tearOff']() {
      return html$.AbsoluteOrientationSensor.__();
    }
    static new(sensorOptions = null) {
      if (sensorOptions != null) {
        let sensorOptions_1 = html_common.convertDartToNative_Dictionary(sensorOptions);
        return html$.AbsoluteOrientationSensor._create_1(sensorOptions_1);
      }
      return html$.AbsoluteOrientationSensor._create_2();
    }
    static ['_#new#tearOff'](sensorOptions = null) {
      return html$.AbsoluteOrientationSensor.new(sensorOptions);
    }
    static _create_1(sensorOptions) {
      return new AbsoluteOrientationSensor(sensorOptions);
    }
    static _create_2() {
      return new AbsoluteOrientationSensor();
    }
  };
  dart.addRtiResources(html$.AbsoluteOrientationSensor, ["html|AbsoluteOrientationSensor"]);
  dart.setStaticMethodSignature(html$.AbsoluteOrientationSensor, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.AbsoluteOrientationSensor, I[167]);
  dart.registerExtension("AbsoluteOrientationSensor", html$.AbsoluteOrientationSensor);
  html$.AbstractWorker = class AbstractWorker extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.AbstractWorker.__();
    }
    get onError() {
      return html$.AbstractWorker.errorEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.AbstractWorker, ["html|AbstractWorker", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.AbstractWorker, () => ['__']);
  dart.setGetterSignature(html$.AbstractWorker, () => dart.global.Object.setPrototypeOf({
    onError: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AbstractWorker))));
  dart.setLibraryUri(html$.AbstractWorker, I[167]);
  dart.setStaticFieldSignature(html$.AbstractWorker, () => ['errorEvent']);
  dart.defineExtensionAccessors(html$.AbstractWorker, ['onError']);
  dart.defineLazy(html$.AbstractWorker, {
    /*html$.AbstractWorker.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    }
  }, false);
  html$.Accelerometer = class Accelerometer$ extends html$.Sensor {
    static ['_#_#tearOff']() {
      return html$.Accelerometer.__();
    }
    static new(sensorOptions = null) {
      if (sensorOptions != null) {
        let sensorOptions_1 = html_common.convertDartToNative_Dictionary(sensorOptions);
        return html$.Accelerometer._create_1(sensorOptions_1);
      }
      return html$.Accelerometer._create_2();
    }
    static ['_#new#tearOff'](sensorOptions = null) {
      return html$.Accelerometer.new(sensorOptions);
    }
    static _create_1(sensorOptions) {
      return new Accelerometer(sensorOptions);
    }
    static _create_2() {
      return new Accelerometer();
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$z]() {
      return this.z;
    }
  };
  dart.addRtiResources(html$.Accelerometer, ["html|Accelerometer"]);
  dart.setStaticMethodSignature(html$.Accelerometer, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.Accelerometer, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Accelerometer))));
  dart.setLibraryUri(html$.Accelerometer, I[167]);
  dart.registerExtension("Accelerometer", html$.Accelerometer);
  html$.AccessibleNode = class AccessibleNode$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.AccessibleNode.__();
    }
    static ['_#new#tearOff']() {
      return html$.AccessibleNode.new();
    }
    static new() {
      return html$.AccessibleNode._create_1();
    }
    static _create_1() {
      return new AccessibleNode();
    }
    get [S$.$activeDescendant]() {
      return this.activeDescendant;
    }
    set [S$.$activeDescendant](value) {
      this.activeDescendant = value;
    }
    get [S$.$atomic]() {
      return this.atomic;
    }
    set [S$.$atomic](value) {
      this.atomic = value;
    }
    get [S$.$autocomplete]() {
      return this.autocomplete;
    }
    set [S$.$autocomplete](value) {
      this.autocomplete = value;
    }
    get [S$.$busy]() {
      return this.busy;
    }
    set [S$.$busy](value) {
      this.busy = value;
    }
    get [S$.$checked]() {
      return this.checked;
    }
    set [S$.$checked](value) {
      this.checked = value;
    }
    get [S$.$colCount]() {
      return this.colCount;
    }
    set [S$.$colCount](value) {
      this.colCount = value;
    }
    get [S$.$colIndex]() {
      return this.colIndex;
    }
    set [S$.$colIndex](value) {
      this.colIndex = value;
    }
    get [S$.$colSpan]() {
      return this.colSpan;
    }
    set [S$.$colSpan](value) {
      this.colSpan = value;
    }
    get [S$.$controls]() {
      return this.controls;
    }
    set [S$.$controls](value) {
      this.controls = value;
    }
    get [S$.$current]() {
      return this.current;
    }
    set [S$.$current](value) {
      this.current = value;
    }
    get [S$.$describedBy]() {
      return this.describedBy;
    }
    set [S$.$describedBy](value) {
      this.describedBy = value;
    }
    get [S$.$details]() {
      return this.details;
    }
    set [S$.$details](value) {
      this.details = value;
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$errorMessage]() {
      return this.errorMessage;
    }
    set [S$.$errorMessage](value) {
      this.errorMessage = value;
    }
    get [S$.$expanded]() {
      return this.expanded;
    }
    set [S$.$expanded](value) {
      this.expanded = value;
    }
    get [S$.$flowTo]() {
      return this.flowTo;
    }
    set [S$.$flowTo](value) {
      this.flowTo = value;
    }
    get [S$.$hasPopUp]() {
      return this.hasPopUp;
    }
    set [S$.$hasPopUp](value) {
      this.hasPopUp = value;
    }
    get [S.$hidden]() {
      return this.hidden;
    }
    set [S.$hidden](value) {
      this.hidden = value;
    }
    get [S$.$invalid]() {
      return this.invalid;
    }
    set [S$.$invalid](value) {
      this.invalid = value;
    }
    get [S$.$keyShortcuts]() {
      return this.keyShortcuts;
    }
    set [S$.$keyShortcuts](value) {
      this.keyShortcuts = value;
    }
    get [S$.$label]() {
      return this.label;
    }
    set [S$.$label](value) {
      this.label = value;
    }
    get [S$.$labeledBy]() {
      return this.labeledBy;
    }
    set [S$.$labeledBy](value) {
      this.labeledBy = value;
    }
    get [S$.$level]() {
      return this.level;
    }
    set [S$.$level](value) {
      this.level = value;
    }
    get [S$.$live]() {
      return this.live;
    }
    set [S$.$live](value) {
      this.live = value;
    }
    get [S$.$modal]() {
      return this.modal;
    }
    set [S$.$modal](value) {
      this.modal = value;
    }
    get [S$.$multiline]() {
      return this.multiline;
    }
    set [S$.$multiline](value) {
      this.multiline = value;
    }
    get [S$.$multiselectable]() {
      return this.multiselectable;
    }
    set [S$.$multiselectable](value) {
      this.multiselectable = value;
    }
    get [S$.$orientation]() {
      return this.orientation;
    }
    set [S$.$orientation](value) {
      this.orientation = value;
    }
    get [S$.$owns]() {
      return this.owns;
    }
    set [S$.$owns](value) {
      this.owns = value;
    }
    get [S$.$placeholder]() {
      return this.placeholder;
    }
    set [S$.$placeholder](value) {
      this.placeholder = value;
    }
    get [S$.$posInSet]() {
      return this.posInSet;
    }
    set [S$.$posInSet](value) {
      this.posInSet = value;
    }
    get [S$.$pressed]() {
      return this.pressed;
    }
    set [S$.$pressed](value) {
      this.pressed = value;
    }
    get [S$.$readOnly]() {
      return this.readOnly;
    }
    set [S$.$readOnly](value) {
      this.readOnly = value;
    }
    get [S$.$relevant]() {
      return this.relevant;
    }
    set [S$.$relevant](value) {
      this.relevant = value;
    }
    get [S$.$required]() {
      return this.required;
    }
    set [S$.$required](value) {
      this.required = value;
    }
    get [S$.$role]() {
      return this.role;
    }
    set [S$.$role](value) {
      this.role = value;
    }
    get [S$.$roleDescription]() {
      return this.roleDescription;
    }
    set [S$.$roleDescription](value) {
      this.roleDescription = value;
    }
    get [S$.$rowCount]() {
      return this.rowCount;
    }
    set [S$.$rowCount](value) {
      this.rowCount = value;
    }
    get [S$.$rowIndex]() {
      return this.rowIndex;
    }
    set [S$.$rowIndex](value) {
      this.rowIndex = value;
    }
    get [S$.$rowSpan]() {
      return this.rowSpan;
    }
    set [S$.$rowSpan](value) {
      this.rowSpan = value;
    }
    get [S$.$selected]() {
      return this.selected;
    }
    set [S$.$selected](value) {
      this.selected = value;
    }
    get [S$.$setSize]() {
      return this.setSize;
    }
    set [S$.$setSize](value) {
      this.setSize = value;
    }
    get [$sort]() {
      return this.sort;
    }
    set [$sort](value) {
      this.sort = value;
    }
    get [S$.$valueMax]() {
      return this.valueMax;
    }
    set [S$.$valueMax](value) {
      this.valueMax = value;
    }
    get [S$.$valueMin]() {
      return this.valueMin;
    }
    set [S$.$valueMin](value) {
      this.valueMin = value;
    }
    get [S$.$valueNow]() {
      return this.valueNow;
    }
    set [S$.$valueNow](value) {
      this.valueNow = value;
    }
    get [S$.$valueText]() {
      return this.valueText;
    }
    set [S$.$valueText](value) {
      this.valueText = value;
    }
    [S$.$appendChild](...args) {
      return this.appendChild.apply(this, args);
    }
    get [S$.$onAccessibleClick]() {
      return html$.AccessibleNode.accessibleClickEvent.forTarget(this);
    }
    get [S$.$onAccessibleContextMenu]() {
      return html$.AccessibleNode.accessibleContextMenuEvent.forTarget(this);
    }
    get [S$.$onAccessibleDecrement]() {
      return html$.AccessibleNode.accessibleDecrementEvent.forTarget(this);
    }
    get [S$.$onAccessibleFocus]() {
      return html$.AccessibleNode.accessibleFocusEvent.forTarget(this);
    }
    get [S$.$onAccessibleIncrement]() {
      return html$.AccessibleNode.accessibleIncrementEvent.forTarget(this);
    }
    get [S$.$onAccessibleScrollIntoView]() {
      return html$.AccessibleNode.accessibleScrollIntoViewEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.AccessibleNode, ["html|AccessibleNode"]);
  dart.setMethodSignature(html$.AccessibleNode, () => dart.global.Object.setPrototypeOf({[S$.$appendChild]: T$4.AccessibleNodeTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.AccessibleNode))));
  dart.setStaticMethodSignature(html$.AccessibleNode, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.AccessibleNode, () => dart.global.Object.setPrototypeOf({
    [S$.$activeDescendant]: T$4.AccessibleNodeN(),
    [S$.$atomic]: T$.boolN(),
    [S$.$autocomplete]: T$.StringN(),
    [S$.$busy]: T$.boolN(),
    [S$.$checked]: T$.StringN(),
    [S$.$colCount]: T$.intN(),
    [S$.$colIndex]: T$.intN(),
    [S$.$colSpan]: T$.intN(),
    [S$.$controls]: T$4.AccessibleNodeListN(),
    [S$.$current]: T$.StringN(),
    [S$.$describedBy]: T$4.AccessibleNodeListN(),
    [S$.$details]: T$4.AccessibleNodeN(),
    [S$.$disabled]: T$.boolN(),
    [S$.$errorMessage]: T$4.AccessibleNodeN(),
    [S$.$expanded]: T$.boolN(),
    [S$.$flowTo]: T$4.AccessibleNodeListN(),
    [S$.$hasPopUp]: T$.StringN(),
    [S.$hidden]: T$.boolN(),
    [S$.$invalid]: T$.StringN(),
    [S$.$keyShortcuts]: T$.StringN(),
    [S$.$label]: T$.StringN(),
    [S$.$labeledBy]: T$4.AccessibleNodeListN(),
    [S$.$level]: T$.intN(),
    [S$.$live]: T$.StringN(),
    [S$.$modal]: T$.boolN(),
    [S$.$multiline]: T$.boolN(),
    [S$.$multiselectable]: T$.boolN(),
    [S$.$orientation]: T$.StringN(),
    [S$.$owns]: T$4.AccessibleNodeListN(),
    [S$.$placeholder]: T$.StringN(),
    [S$.$posInSet]: T$.intN(),
    [S$.$pressed]: T$.StringN(),
    [S$.$readOnly]: T$.boolN(),
    [S$.$relevant]: T$.StringN(),
    [S$.$required]: T$.boolN(),
    [S$.$role]: T$.StringN(),
    [S$.$roleDescription]: T$.StringN(),
    [S$.$rowCount]: T$.intN(),
    [S$.$rowIndex]: T$.intN(),
    [S$.$rowSpan]: T$.intN(),
    [S$.$selected]: T$.boolN(),
    [S$.$setSize]: T$.intN(),
    [$sort]: T$.StringN(),
    [S$.$valueMax]: T$3.numN(),
    [S$.$valueMin]: T$3.numN(),
    [S$.$valueNow]: T$3.numN(),
    [S$.$valueText]: T$.StringN(),
    [S$.$onAccessibleClick]: T$3.StreamOfEvent(),
    [S$.$onAccessibleContextMenu]: T$3.StreamOfEvent(),
    [S$.$onAccessibleDecrement]: T$3.StreamOfEvent(),
    [S$.$onAccessibleFocus]: T$3.StreamOfEvent(),
    [S$.$onAccessibleIncrement]: T$3.StreamOfEvent(),
    [S$.$onAccessibleScrollIntoView]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AccessibleNode))));
  dart.setSetterSignature(html$.AccessibleNode, () => dart.global.Object.setPrototypeOf({
    [S$.$activeDescendant]: T$4.AccessibleNodeN(),
    [S$.$atomic]: T$.boolN(),
    [S$.$autocomplete]: T$.StringN(),
    [S$.$busy]: T$.boolN(),
    [S$.$checked]: T$.StringN(),
    [S$.$colCount]: T$.intN(),
    [S$.$colIndex]: T$.intN(),
    [S$.$colSpan]: T$.intN(),
    [S$.$controls]: T$4.AccessibleNodeListN(),
    [S$.$current]: T$.StringN(),
    [S$.$describedBy]: T$4.AccessibleNodeListN(),
    [S$.$details]: T$4.AccessibleNodeN(),
    [S$.$disabled]: T$.boolN(),
    [S$.$errorMessage]: T$4.AccessibleNodeN(),
    [S$.$expanded]: T$.boolN(),
    [S$.$flowTo]: T$4.AccessibleNodeListN(),
    [S$.$hasPopUp]: T$.StringN(),
    [S.$hidden]: T$.boolN(),
    [S$.$invalid]: T$.StringN(),
    [S$.$keyShortcuts]: T$.StringN(),
    [S$.$label]: T$.StringN(),
    [S$.$labeledBy]: T$4.AccessibleNodeListN(),
    [S$.$level]: T$.intN(),
    [S$.$live]: T$.StringN(),
    [S$.$modal]: T$.boolN(),
    [S$.$multiline]: T$.boolN(),
    [S$.$multiselectable]: T$.boolN(),
    [S$.$orientation]: T$.StringN(),
    [S$.$owns]: T$4.AccessibleNodeListN(),
    [S$.$placeholder]: T$.StringN(),
    [S$.$posInSet]: T$.intN(),
    [S$.$pressed]: T$.StringN(),
    [S$.$readOnly]: T$.boolN(),
    [S$.$relevant]: T$.StringN(),
    [S$.$required]: T$.boolN(),
    [S$.$role]: T$.StringN(),
    [S$.$roleDescription]: T$.StringN(),
    [S$.$rowCount]: T$.intN(),
    [S$.$rowIndex]: T$.intN(),
    [S$.$rowSpan]: T$.intN(),
    [S$.$selected]: T$.boolN(),
    [S$.$setSize]: T$.intN(),
    [$sort]: T$.StringN(),
    [S$.$valueMax]: T$3.numN(),
    [S$.$valueMin]: T$3.numN(),
    [S$.$valueNow]: T$3.numN(),
    [S$.$valueText]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.AccessibleNode))));
  dart.setLibraryUri(html$.AccessibleNode, I[167]);
  dart.setStaticFieldSignature(html$.AccessibleNode, () => ['accessibleClickEvent', 'accessibleContextMenuEvent', 'accessibleDecrementEvent', 'accessibleFocusEvent', 'accessibleIncrementEvent', 'accessibleScrollIntoViewEvent']);
  dart.defineLazy(html$.AccessibleNode, {
    /*html$.AccessibleNode.accessibleClickEvent*/get accessibleClickEvent() {
      return C[347] || CT.C347;
    },
    /*html$.AccessibleNode.accessibleContextMenuEvent*/get accessibleContextMenuEvent() {
      return C[348] || CT.C348;
    },
    /*html$.AccessibleNode.accessibleDecrementEvent*/get accessibleDecrementEvent() {
      return C[349] || CT.C349;
    },
    /*html$.AccessibleNode.accessibleFocusEvent*/get accessibleFocusEvent() {
      return C[350] || CT.C350;
    },
    /*html$.AccessibleNode.accessibleIncrementEvent*/get accessibleIncrementEvent() {
      return C[351] || CT.C351;
    },
    /*html$.AccessibleNode.accessibleScrollIntoViewEvent*/get accessibleScrollIntoViewEvent() {
      return C[352] || CT.C352;
    }
  }, false);
  dart.registerExtension("AccessibleNode", html$.AccessibleNode);
  html$.AccessibleNodeList = class AccessibleNodeList$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.AccessibleNodeList.__();
    }
    static new(nodes = null) {
      if (nodes != null) {
        return html$.AccessibleNodeList._create_1(nodes);
      }
      return html$.AccessibleNodeList._create_2();
    }
    static ['_#new#tearOff'](nodes = null) {
      return html$.AccessibleNodeList.new(nodes);
    }
    static _create_1(nodes) {
      return new AccessibleNodeList(nodes);
    }
    static _create_2() {
      return new AccessibleNodeList();
    }
    get [$length]() {
      return this.length;
    }
    set [$length](value) {
      this.length = value;
    }
    [S$.__setter__](...args) {
      return this.__setter__.apply(this, args);
    }
    [$add](...args) {
      return this.add.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [$remove](...args) {
      return this.remove.apply(this, args);
    }
  };
  dart.addRtiResources(html$.AccessibleNodeList, ["html|AccessibleNodeList"]);
  dart.setMethodSignature(html$.AccessibleNodeList, () => dart.global.Object.setPrototypeOf({
    [S$.__setter__]: T$4.intAndAccessibleNodeTovoid(),
    [$add]: T$4.AccessibleNodeAndAccessibleNodeNTovoid(),
    [S$.$item]: T$4.intToAccessibleNodeN(),
    [$remove]: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.AccessibleNodeList))));
  dart.setStaticMethodSignature(html$.AccessibleNodeList, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.AccessibleNodeList, () => dart.global.Object.setPrototypeOf({[$length]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AccessibleNodeList))));
  dart.setSetterSignature(html$.AccessibleNodeList, () => dart.global.Object.setPrototypeOf({[$length]: T$.intN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.AccessibleNodeList))));
  dart.setLibraryUri(html$.AccessibleNodeList, I[167]);
  dart.registerExtension("AccessibleNodeList", html$.AccessibleNodeList);
  html$.AmbientLightSensor = class AmbientLightSensor$ extends html$.Sensor {
    static ['_#_#tearOff']() {
      return html$.AmbientLightSensor.__();
    }
    static new(sensorOptions = null) {
      if (sensorOptions != null) {
        let sensorOptions_1 = html_common.convertDartToNative_Dictionary(sensorOptions);
        return html$.AmbientLightSensor._create_1(sensorOptions_1);
      }
      return html$.AmbientLightSensor._create_2();
    }
    static ['_#new#tearOff'](sensorOptions = null) {
      return html$.AmbientLightSensor.new(sensorOptions);
    }
    static _create_1(sensorOptions) {
      return new AmbientLightSensor(sensorOptions);
    }
    static _create_2() {
      return new AmbientLightSensor();
    }
    get [S$.$illuminance]() {
      return this.illuminance;
    }
  };
  dart.addRtiResources(html$.AmbientLightSensor, ["html|AmbientLightSensor"]);
  dart.setStaticMethodSignature(html$.AmbientLightSensor, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.AmbientLightSensor, () => dart.global.Object.setPrototypeOf({[S$.$illuminance]: T$3.numN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AmbientLightSensor))));
  dart.setLibraryUri(html$.AmbientLightSensor, I[167]);
  dart.registerExtension("AmbientLightSensor", html$.AmbientLightSensor);
  html$.AnchorElement = class AnchorElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.AnchorElement.__();
    }
    static ['_#new#tearOff'](opts) {
      let href = opts && 'href' in opts ? opts.href : null;
      return html$.AnchorElement.new({href: href});
    }
    static new(opts) {
      let href = opts && 'href' in opts ? opts.href : null;
      let e = html$.document.createElement("a");
      if (href != null) e.href = href;
      return e;
    }
    static ['_#created#tearOff']() {
      return new html$.AnchorElement.created();
    }
    get [S$.$download]() {
      return this.download;
    }
    set [S$.$download](value) {
      this.download = value;
    }
    get [S$.$hreflang]() {
      return this.hreflang;
    }
    set [S$.$hreflang](value) {
      this.hreflang = value;
    }
    get [S$.$referrerPolicy]() {
      return this.referrerPolicy;
    }
    set [S$.$referrerPolicy](value) {
      this.referrerPolicy = value;
    }
    get [S$.$rel]() {
      return this.rel;
    }
    set [S$.$rel](value) {
      this.rel = value;
    }
    get [S.$target]() {
      return this.target;
    }
    set [S.$target](value) {
      this.target = value;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
    get [S$.$hash]() {
      return this.hash;
    }
    set [S$.$hash](value) {
      this.hash = value;
    }
    get [S$.$host]() {
      return this.host;
    }
    set [S$.$host](value) {
      this.host = value;
    }
    get [S$.$hostname]() {
      return this.hostname;
    }
    set [S$.$hostname](value) {
      this.hostname = value;
    }
    get [S$.$href]() {
      return this.href;
    }
    set [S$.$href](value) {
      this.href = value;
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$.$password]() {
      return this.password;
    }
    set [S$.$password](value) {
      this.password = value;
    }
    get [S$.$pathname]() {
      return this.pathname;
    }
    set [S$.$pathname](value) {
      this.pathname = value;
    }
    get [S$.$port]() {
      return this.port;
    }
    set [S$.$port](value) {
      this.port = value;
    }
    get [S$.$protocol]() {
      return this.protocol;
    }
    set [S$.$protocol](value) {
      this.protocol = value;
    }
    get [S$.$search]() {
      return this.search;
    }
    set [S$.$search](value) {
      this.search = value;
    }
    get [S$.$username]() {
      return this.username;
    }
    set [S$.$username](value) {
      this.username = value;
    }
    [$toString]() {
      return String(this);
    }
  };
  (html$.AnchorElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.AnchorElement).created.call(this);
    ;
  }).prototype = html$.AnchorElement.prototype;
  dart.addRtiResources(html$.AnchorElement, ["html|AnchorElement", "html|HtmlHyperlinkElementUtils", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.AnchorElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.AnchorElement, () => dart.global.Object.setPrototypeOf({
    [S$.$download]: T$.StringN(),
    [S$.$hreflang]: T$.String(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$.$rel]: T$.String(),
    [S.$target]: T$.String(),
    [S.$type]: T$.String(),
    [S$.$hash]: T$.StringN(),
    [S$.$host]: T$.StringN(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.StringN(),
    [S$.$origin]: T$.StringN(),
    [S$.$password]: T$.StringN(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    [S$.$search]: T$.StringN(),
    [S$.$username]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AnchorElement))));
  dart.setSetterSignature(html$.AnchorElement, () => dart.global.Object.setPrototypeOf({
    [S$.$download]: T$.StringN(),
    [S$.$hreflang]: T$.String(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$.$rel]: T$.String(),
    [S.$target]: T$.String(),
    [S.$type]: T$.String(),
    [S$.$hash]: T$.StringN(),
    [S$.$host]: T$.StringN(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.StringN(),
    [S$.$password]: T$.StringN(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    [S$.$search]: T$.StringN(),
    [S$.$username]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.AnchorElement))));
  dart.setLibraryUri(html$.AnchorElement, I[167]);
  dart.registerExtension("HTMLAnchorElement", html$.AnchorElement);
  html$.Animation = class Animation$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.Animation.__();
    }
    static new(effect = null, timeline = null) {
      if (timeline != null) {
        return html$.Animation._create_1(effect, timeline);
      }
      if (effect != null) {
        return html$.Animation._create_2(effect);
      }
      return html$.Animation._create_3();
    }
    static ['_#new#tearOff'](effect = null, timeline = null) {
      return html$.Animation.new(effect, timeline);
    }
    static _create_1(effect, timeline) {
      return new Animation(effect, timeline);
    }
    static _create_2(effect) {
      return new Animation(effect);
    }
    static _create_3() {
      return new Animation();
    }
    static get supported() {
      return !!document.body.animate;
    }
    get [S$.$currentTime]() {
      return this.currentTime;
    }
    set [S$.$currentTime](value) {
      this.currentTime = value;
    }
    get [S$.$effect]() {
      return this.effect;
    }
    set [S$.$effect](value) {
      this.effect = value;
    }
    get [S$.$finished]() {
      return js_util.promiseToFuture(T$4.Animation(), this.finished);
    }
    get [S.$id]() {
      return this.id;
    }
    set [S.$id](value) {
      this.id = value;
    }
    get [S$.$playState]() {
      return this.playState;
    }
    get [S$.$playbackRate]() {
      return this.playbackRate;
    }
    set [S$.$playbackRate](value) {
      this.playbackRate = value;
    }
    get [S$.$ready]() {
      return js_util.promiseToFuture(T$4.Animation(), this.ready);
    }
    get [S$.$startTime]() {
      return this.startTime;
    }
    set [S$.$startTime](value) {
      this.startTime = value;
    }
    get [S$.$timeline]() {
      return this.timeline;
    }
    [S$.$cancel](...args) {
      return this.cancel.apply(this, args);
    }
    [S$.$finish](...args) {
      return this.finish.apply(this, args);
    }
    [S$.$pause](...args) {
      return this.pause.apply(this, args);
    }
    [S$.$play](...args) {
      return this.play.apply(this, args);
    }
    [S$.$reverse](...args) {
      return this.reverse.apply(this, args);
    }
    get [S$.$onCancel]() {
      return html$.Animation.cancelEvent.forTarget(this);
    }
    get [S$.$onFinish]() {
      return html$.Animation.finishEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.Animation, ["html|Animation"]);
  dart.setMethodSignature(html$.Animation, () => dart.global.Object.setPrototypeOf({
    [S$.$cancel]: T$.VoidTovoid(),
    [S$.$finish]: T$.VoidTovoid(),
    [S$.$pause]: T$.VoidTovoid(),
    [S$.$play]: T$.VoidTovoid(),
    [S$.$reverse]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Animation))));
  dart.setStaticMethodSignature(html$.Animation, () => ['__', 'new', '_create_1', '_create_2', '_create_3']);
  dart.setGetterSignature(html$.Animation, () => dart.global.Object.setPrototypeOf({
    [S$.$currentTime]: T$3.numN(),
    [S$.$effect]: T$4.AnimationEffectReadOnlyN(),
    [S$.$finished]: T$4.FutureOfAnimation(),
    [S.$id]: T$.StringN(),
    [S$.$playState]: T$.StringN(),
    [S$.$playbackRate]: T$3.numN(),
    [S$.$ready]: T$4.FutureOfAnimation(),
    [S$.$startTime]: T$3.numN(),
    [S$.$timeline]: T$4.AnimationTimelineN(),
    [S$.$onCancel]: T$3.StreamOfEvent(),
    [S$.$onFinish]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Animation))));
  dart.setSetterSignature(html$.Animation, () => dart.global.Object.setPrototypeOf({
    [S$.$currentTime]: T$3.numN(),
    [S$.$effect]: T$4.AnimationEffectReadOnlyN(),
    [S.$id]: T$.StringN(),
    [S$.$playbackRate]: T$3.numN(),
    [S$.$startTime]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Animation))));
  dart.setStaticGetterSignature(html$.Animation, () => ['supported']);
  dart.setLibraryUri(html$.Animation, I[167]);
  dart.setStaticFieldSignature(html$.Animation, () => ['cancelEvent', 'finishEvent']);
  dart.defineLazy(html$.Animation, {
    /*html$.Animation.cancelEvent*/get cancelEvent() {
      return C[353] || CT.C353;
    },
    /*html$.Animation.finishEvent*/get finishEvent() {
      return C[354] || CT.C354;
    }
  }, false);
  dart.registerExtension("Animation", html$.Animation);
  html$.AnimationEffectReadOnly = class AnimationEffectReadOnly extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.AnimationEffectReadOnly.__();
    }
    get [S$.$timing]() {
      return this.timing;
    }
    [S$.$getComputedTiming]() {
      return dart.nullCheck(html_common.convertNativeToDart_Dictionary(this[S$._getComputedTiming_1]()));
    }
    [S$._getComputedTiming_1](...args) {
      return this.getComputedTiming.apply(this, args);
    }
  };
  dart.addRtiResources(html$.AnimationEffectReadOnly, ["html|AnimationEffectReadOnly"]);
  dart.setMethodSignature(html$.AnimationEffectReadOnly, () => dart.global.Object.setPrototypeOf({
    [S$.$getComputedTiming]: T$4.VoidToMap(),
    [S$._getComputedTiming_1]: T$.VoidTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.AnimationEffectReadOnly))));
  dart.setStaticMethodSignature(html$.AnimationEffectReadOnly, () => ['__']);
  dart.setGetterSignature(html$.AnimationEffectReadOnly, () => dart.global.Object.setPrototypeOf({[S$.$timing]: T$4.AnimationEffectTimingReadOnlyN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AnimationEffectReadOnly))));
  dart.setLibraryUri(html$.AnimationEffectReadOnly, I[167]);
  dart.registerExtension("AnimationEffectReadOnly", html$.AnimationEffectReadOnly);
  html$.AnimationEffectTimingReadOnly = class AnimationEffectTimingReadOnly extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.AnimationEffectTimingReadOnly.__();
    }
    get [S$.$delay]() {
      return this.delay;
    }
    get [S.$direction]() {
      return this.direction;
    }
    get [S$.$duration]() {
      return this.duration;
    }
    get [S$.$easing]() {
      return this.easing;
    }
    get [S$.$endDelay]() {
      return this.endDelay;
    }
    get [S$.$fill]() {
      return this.fill;
    }
    get [S$.$iterationStart]() {
      return this.iterationStart;
    }
    get [S$.$iterations]() {
      return this.iterations;
    }
  };
  dart.addRtiResources(html$.AnimationEffectTimingReadOnly, ["html|AnimationEffectTimingReadOnly"]);
  dart.setStaticMethodSignature(html$.AnimationEffectTimingReadOnly, () => ['__']);
  dart.setGetterSignature(html$.AnimationEffectTimingReadOnly, () => dart.global.Object.setPrototypeOf({
    [S$.$delay]: T$3.numN(),
    [S.$direction]: T$.StringN(),
    [S$.$duration]: T$.ObjectN(),
    [S$.$easing]: T$.StringN(),
    [S$.$endDelay]: T$3.numN(),
    [S$.$fill]: T$.StringN(),
    [S$.$iterationStart]: T$3.numN(),
    [S$.$iterations]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AnimationEffectTimingReadOnly))));
  dart.setLibraryUri(html$.AnimationEffectTimingReadOnly, I[167]);
  dart.registerExtension("AnimationEffectTimingReadOnly", html$.AnimationEffectTimingReadOnly);
  html$.AnimationEffectTiming = class AnimationEffectTiming extends html$.AnimationEffectTimingReadOnly {
    static ['_#_#tearOff']() {
      return html$.AnimationEffectTiming.__();
    }
    get [S$.$delay]() {
      return this.delay;
    }
    set [S$.$delay](value) {
      this.delay = value;
    }
    get [S.$direction]() {
      return this.direction;
    }
    set [S.$direction](value) {
      this.direction = value;
    }
    get [S$.$duration]() {
      return this.duration;
    }
    set [S$.$duration](value) {
      this.duration = value;
    }
    get [S$.$easing]() {
      return this.easing;
    }
    set [S$.$easing](value) {
      this.easing = value;
    }
    get [S$.$endDelay]() {
      return this.endDelay;
    }
    set [S$.$endDelay](value) {
      this.endDelay = value;
    }
    get [S$.$fill]() {
      return this.fill;
    }
    set [S$.$fill](value) {
      this.fill = value;
    }
    get [S$.$iterationStart]() {
      return this.iterationStart;
    }
    set [S$.$iterationStart](value) {
      this.iterationStart = value;
    }
    get [S$.$iterations]() {
      return this.iterations;
    }
    set [S$.$iterations](value) {
      this.iterations = value;
    }
  };
  dart.addRtiResources(html$.AnimationEffectTiming, ["html|AnimationEffectTiming"]);
  dart.setStaticMethodSignature(html$.AnimationEffectTiming, () => ['__']);
  dart.setSetterSignature(html$.AnimationEffectTiming, () => dart.global.Object.setPrototypeOf({
    [S$.$delay]: T$3.numN(),
    [S.$direction]: T$.StringN(),
    [S$.$duration]: T$.ObjectN(),
    [S$.$easing]: T$.StringN(),
    [S$.$endDelay]: T$3.numN(),
    [S$.$fill]: T$.StringN(),
    [S$.$iterationStart]: T$3.numN(),
    [S$.$iterations]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.AnimationEffectTiming))));
  dart.setLibraryUri(html$.AnimationEffectTiming, I[167]);
  dart.registerExtension("AnimationEffectTiming", html$.AnimationEffectTiming);
  html$.AnimationEvent = class AnimationEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.AnimationEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 824, 33, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.AnimationEvent._create_1(type, eventInitDict_1);
      }
      return html$.AnimationEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 824, 33, "type");
      return html$.AnimationEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new AnimationEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new AnimationEvent(type);
    }
    get [S$.$animationName]() {
      return this.animationName;
    }
    get [S$.$elapsedTime]() {
      return this.elapsedTime;
    }
  };
  dart.addRtiResources(html$.AnimationEvent, ["html|AnimationEvent"]);
  dart.setStaticMethodSignature(html$.AnimationEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.AnimationEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$animationName]: T$.StringN(),
    [S$.$elapsedTime]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AnimationEvent))));
  dart.setLibraryUri(html$.AnimationEvent, I[167]);
  dart.registerExtension("AnimationEvent", html$.AnimationEvent);
  html$.AnimationPlaybackEvent = class AnimationPlaybackEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.AnimationPlaybackEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 851, 41, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.AnimationPlaybackEvent._create_1(type, eventInitDict_1);
      }
      return html$.AnimationPlaybackEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 851, 41, "type");
      return html$.AnimationPlaybackEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new AnimationPlaybackEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new AnimationPlaybackEvent(type);
    }
    get [S$.$currentTime]() {
      return this.currentTime;
    }
    get [S$.$timelineTime]() {
      return this.timelineTime;
    }
  };
  dart.addRtiResources(html$.AnimationPlaybackEvent, ["html|AnimationPlaybackEvent"]);
  dart.setStaticMethodSignature(html$.AnimationPlaybackEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.AnimationPlaybackEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$currentTime]: T$3.numN(),
    [S$.$timelineTime]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AnimationPlaybackEvent))));
  dart.setLibraryUri(html$.AnimationPlaybackEvent, I[167]);
  dart.registerExtension("AnimationPlaybackEvent", html$.AnimationPlaybackEvent);
  html$.AnimationTimeline = class AnimationTimeline extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.AnimationTimeline.__();
    }
    get [S$.$currentTime]() {
      return this.currentTime;
    }
  };
  dart.addRtiResources(html$.AnimationTimeline, ["html|AnimationTimeline"]);
  dart.setStaticMethodSignature(html$.AnimationTimeline, () => ['__']);
  dart.setGetterSignature(html$.AnimationTimeline, () => dart.global.Object.setPrototypeOf({[S$.$currentTime]: T$3.numN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AnimationTimeline))));
  dart.setLibraryUri(html$.AnimationTimeline, I[167]);
  dart.registerExtension("AnimationTimeline", html$.AnimationTimeline);
  html$.WorkletGlobalScope = class WorkletGlobalScope extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.WorkletGlobalScope.__();
    }
  };
  dart.addRtiResources(html$.WorkletGlobalScope, ["html|WorkletGlobalScope"]);
  dart.setStaticMethodSignature(html$.WorkletGlobalScope, () => ['__']);
  dart.setLibraryUri(html$.WorkletGlobalScope, I[167]);
  dart.registerExtension("WorkletGlobalScope", html$.WorkletGlobalScope);
  html$.AnimationWorkletGlobalScope = class AnimationWorkletGlobalScope extends html$.WorkletGlobalScope {
    static ['_#_#tearOff']() {
      return html$.AnimationWorkletGlobalScope.__();
    }
    [S$.$registerAnimator](...args) {
      return this.registerAnimator.apply(this, args);
    }
  };
  dart.addRtiResources(html$.AnimationWorkletGlobalScope, ["html|AnimationWorkletGlobalScope"]);
  dart.setMethodSignature(html$.AnimationWorkletGlobalScope, () => dart.global.Object.setPrototypeOf({[S$.$registerAnimator]: T$3.StringAndObjectTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.AnimationWorkletGlobalScope))));
  dart.setStaticMethodSignature(html$.AnimationWorkletGlobalScope, () => ['__']);
  dart.setLibraryUri(html$.AnimationWorkletGlobalScope, I[167]);
  dart.registerExtension("AnimationWorkletGlobalScope", html$.AnimationWorkletGlobalScope);
  html$.ApplicationCache = class ApplicationCache extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.ApplicationCache.__();
    }
    static get supported() {
      return !!window.applicationCache;
    }
    get [S$.$status]() {
      return this.status;
    }
    [S.$abort](...args) {
      return this.abort.apply(this, args);
    }
    [S$.$swapCache](...args) {
      return this.swapCache.apply(this, args);
    }
    [$update](...args) {
      return this.update.apply(this, args);
    }
    get [S$.$onCached]() {
      return html$.ApplicationCache.cachedEvent.forTarget(this);
    }
    get [S$.$onChecking]() {
      return html$.ApplicationCache.checkingEvent.forTarget(this);
    }
    get [S$.$onDownloading]() {
      return html$.ApplicationCache.downloadingEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.ApplicationCache.errorEvent.forTarget(this);
    }
    get [S$.$onNoUpdate]() {
      return html$.ApplicationCache.noUpdateEvent.forTarget(this);
    }
    get [S$.$onObsolete]() {
      return html$.ApplicationCache.obsoleteEvent.forTarget(this);
    }
    get [S$.$onProgress]() {
      return html$.ApplicationCache.progressEvent.forTarget(this);
    }
    get [S$.$onUpdateReady]() {
      return html$.ApplicationCache.updateReadyEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.ApplicationCache, ["html|ApplicationCache"]);
  dart.setMethodSignature(html$.ApplicationCache, () => dart.global.Object.setPrototypeOf({
    [S.$abort]: T$.VoidTovoid(),
    [S$.$swapCache]: T$.VoidTovoid(),
    [$update]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ApplicationCache))));
  dart.setStaticMethodSignature(html$.ApplicationCache, () => ['__']);
  dart.setGetterSignature(html$.ApplicationCache, () => dart.global.Object.setPrototypeOf({
    [S$.$status]: T$.intN(),
    [S$.$onCached]: T$3.StreamOfEvent(),
    [S$.$onChecking]: T$3.StreamOfEvent(),
    [S$.$onDownloading]: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S$.$onNoUpdate]: T$3.StreamOfEvent(),
    [S$.$onObsolete]: T$3.StreamOfEvent(),
    [S$.$onProgress]: T$4.StreamOfProgressEvent(),
    [S$.$onUpdateReady]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ApplicationCache))));
  dart.setStaticGetterSignature(html$.ApplicationCache, () => ['supported']);
  dart.setLibraryUri(html$.ApplicationCache, I[167]);
  dart.setStaticFieldSignature(html$.ApplicationCache, () => ['cachedEvent', 'checkingEvent', 'downloadingEvent', 'errorEvent', 'noUpdateEvent', 'obsoleteEvent', 'progressEvent', 'updateReadyEvent', 'CHECKING', 'DOWNLOADING', 'IDLE', 'OBSOLETE', 'UNCACHED', 'UPDATEREADY']);
  dart.defineLazy(html$.ApplicationCache, {
    /*html$.ApplicationCache.cachedEvent*/get cachedEvent() {
      return C[355] || CT.C355;
    },
    /*html$.ApplicationCache.checkingEvent*/get checkingEvent() {
      return C[356] || CT.C356;
    },
    /*html$.ApplicationCache.downloadingEvent*/get downloadingEvent() {
      return C[357] || CT.C357;
    },
    /*html$.ApplicationCache.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.ApplicationCache.noUpdateEvent*/get noUpdateEvent() {
      return C[358] || CT.C358;
    },
    /*html$.ApplicationCache.obsoleteEvent*/get obsoleteEvent() {
      return C[359] || CT.C359;
    },
    /*html$.ApplicationCache.progressEvent*/get progressEvent() {
      return C[360] || CT.C360;
    },
    /*html$.ApplicationCache.updateReadyEvent*/get updateReadyEvent() {
      return C[361] || CT.C361;
    },
    /*html$.ApplicationCache.CHECKING*/get CHECKING() {
      return 2;
    },
    /*html$.ApplicationCache.DOWNLOADING*/get DOWNLOADING() {
      return 3;
    },
    /*html$.ApplicationCache.IDLE*/get IDLE() {
      return 1;
    },
    /*html$.ApplicationCache.OBSOLETE*/get OBSOLETE() {
      return 5;
    },
    /*html$.ApplicationCache.UNCACHED*/get UNCACHED() {
      return 0;
    },
    /*html$.ApplicationCache.UPDATEREADY*/get UPDATEREADY() {
      return 4;
    }
  }, false);
  dart.registerExtension("ApplicationCache", html$.ApplicationCache);
  dart.registerExtension("DOMApplicationCache", html$.ApplicationCache);
  dart.registerExtension("OfflineResourceList", html$.ApplicationCache);
  html$.ApplicationCacheErrorEvent = class ApplicationCacheErrorEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.ApplicationCacheErrorEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 1046, 45, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.ApplicationCacheErrorEvent._create_1(type, eventInitDict_1);
      }
      return html$.ApplicationCacheErrorEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 1046, 45, "type");
      return html$.ApplicationCacheErrorEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new ApplicationCacheErrorEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new ApplicationCacheErrorEvent(type);
    }
    get [$message]() {
      return this.message;
    }
    get [S$.$reason]() {
      return this.reason;
    }
    get [S$.$status]() {
      return this.status;
    }
    get [S$.$url]() {
      return this.url;
    }
  };
  dart.addRtiResources(html$.ApplicationCacheErrorEvent, ["html|ApplicationCacheErrorEvent"]);
  dart.setStaticMethodSignature(html$.ApplicationCacheErrorEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.ApplicationCacheErrorEvent, () => dart.global.Object.setPrototypeOf({
    [$message]: T$.StringN(),
    [S$.$reason]: T$.StringN(),
    [S$.$status]: T$.intN(),
    [S$.$url]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ApplicationCacheErrorEvent))));
  dart.setLibraryUri(html$.ApplicationCacheErrorEvent, I[167]);
  dart.registerExtension("ApplicationCacheErrorEvent", html$.ApplicationCacheErrorEvent);
  html$.AreaElement = class AreaElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.AreaElement.__();
    }
    static ['_#new#tearOff']() {
      return html$.AreaElement.new();
    }
    static new() {
      return html$.document.createElement("area");
    }
    static ['_#created#tearOff']() {
      return new html$.AreaElement.created();
    }
    get [S$.$alt]() {
      return this.alt;
    }
    set [S$.$alt](value) {
      this.alt = value;
    }
    get [S$.$coords]() {
      return this.coords;
    }
    set [S$.$coords](value) {
      this.coords = value;
    }
    get [S$.$download]() {
      return this.download;
    }
    set [S$.$download](value) {
      this.download = value;
    }
    get [S$.$referrerPolicy]() {
      return this.referrerPolicy;
    }
    set [S$.$referrerPolicy](value) {
      this.referrerPolicy = value;
    }
    get [S$.$rel]() {
      return this.rel;
    }
    set [S$.$rel](value) {
      this.rel = value;
    }
    get [S$.$shape]() {
      return this.shape;
    }
    set [S$.$shape](value) {
      this.shape = value;
    }
    get [S.$target]() {
      return this.target;
    }
    set [S.$target](value) {
      this.target = value;
    }
    get [S$.$hash]() {
      return this.hash;
    }
    set [S$.$hash](value) {
      this.hash = value;
    }
    get [S$.$host]() {
      return this.host;
    }
    set [S$.$host](value) {
      this.host = value;
    }
    get [S$.$hostname]() {
      return this.hostname;
    }
    set [S$.$hostname](value) {
      this.hostname = value;
    }
    get [S$.$href]() {
      return this.href;
    }
    set [S$.$href](value) {
      this.href = value;
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$.$password]() {
      return this.password;
    }
    set [S$.$password](value) {
      this.password = value;
    }
    get [S$.$pathname]() {
      return this.pathname;
    }
    set [S$.$pathname](value) {
      this.pathname = value;
    }
    get [S$.$port]() {
      return this.port;
    }
    set [S$.$port](value) {
      this.port = value;
    }
    get [S$.$protocol]() {
      return this.protocol;
    }
    set [S$.$protocol](value) {
      this.protocol = value;
    }
    get [S$.$search]() {
      return this.search;
    }
    set [S$.$search](value) {
      this.search = value;
    }
    get [S$.$username]() {
      return this.username;
    }
    set [S$.$username](value) {
      this.username = value;
    }
    [$toString]() {
      return String(this);
    }
  };
  (html$.AreaElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.AreaElement).created.call(this);
    ;
  }).prototype = html$.AreaElement.prototype;
  dart.addRtiResources(html$.AreaElement, ["html|AreaElement", "html|HtmlHyperlinkElementUtils", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.AreaElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.AreaElement, () => dart.global.Object.setPrototypeOf({
    [S$.$alt]: T$.String(),
    [S$.$coords]: T$.String(),
    [S$.$download]: T$.StringN(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$.$rel]: T$.String(),
    [S$.$shape]: T$.String(),
    [S.$target]: T$.String(),
    [S$.$hash]: T$.StringN(),
    [S$.$host]: T$.StringN(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.StringN(),
    [S$.$origin]: T$.StringN(),
    [S$.$password]: T$.StringN(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    [S$.$search]: T$.StringN(),
    [S$.$username]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AreaElement))));
  dart.setSetterSignature(html$.AreaElement, () => dart.global.Object.setPrototypeOf({
    [S$.$alt]: T$.String(),
    [S$.$coords]: T$.String(),
    [S$.$download]: T$.StringN(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$.$rel]: T$.String(),
    [S$.$shape]: T$.String(),
    [S.$target]: T$.String(),
    [S$.$hash]: T$.StringN(),
    [S$.$host]: T$.StringN(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.StringN(),
    [S$.$password]: T$.StringN(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    [S$.$search]: T$.StringN(),
    [S$.$username]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.AreaElement))));
  dart.setLibraryUri(html$.AreaElement, I[167]);
  dart.registerExtension("HTMLAreaElement", html$.AreaElement);
  html$.MediaElement = class MediaElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.MediaElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.MediaElement.created();
    }
    get [S$.$audioTracks]() {
      return this.audioTracks;
    }
    get [S$.$autoplay]() {
      return this.autoplay;
    }
    set [S$.$autoplay](value) {
      this.autoplay = value;
    }
    get [S$.$buffered]() {
      return this.buffered;
    }
    get [S$.$controls]() {
      return this.controls;
    }
    set [S$.$controls](value) {
      this.controls = value;
    }
    get [S$.$controlsList]() {
      return this.controlsList;
    }
    get [S$.$crossOrigin]() {
      return this.crossOrigin;
    }
    set [S$.$crossOrigin](value) {
      this.crossOrigin = value;
    }
    get [S$.$currentSrc]() {
      return this.currentSrc;
    }
    get [S$.$currentTime]() {
      return this.currentTime;
    }
    set [S$.$currentTime](value) {
      this.currentTime = value;
    }
    get [S$.$defaultMuted]() {
      return this.defaultMuted;
    }
    set [S$.$defaultMuted](value) {
      this.defaultMuted = value;
    }
    get [S$.$defaultPlaybackRate]() {
      return this.defaultPlaybackRate;
    }
    set [S$.$defaultPlaybackRate](value) {
      this.defaultPlaybackRate = value;
    }
    get [S$.$disableRemotePlayback]() {
      return this.disableRemotePlayback;
    }
    set [S$.$disableRemotePlayback](value) {
      this.disableRemotePlayback = value;
    }
    get [S$.$duration]() {
      return this.duration;
    }
    get [S$.$ended]() {
      return this.ended;
    }
    get [S.$error]() {
      return this.error;
    }
    get [S$.$loop]() {
      return this.loop;
    }
    set [S$.$loop](value) {
      this.loop = value;
    }
    get [S$.$mediaKeys]() {
      return this.mediaKeys;
    }
    get [S$.$muted]() {
      return this.muted;
    }
    set [S$.$muted](value) {
      this.muted = value;
    }
    get [S$.$networkState]() {
      return this.networkState;
    }
    get [S$.$paused]() {
      return this.paused;
    }
    get [S$.$playbackRate]() {
      return this.playbackRate;
    }
    set [S$.$playbackRate](value) {
      this.playbackRate = value;
    }
    get [S$.$played]() {
      return this.played;
    }
    get [S$.$preload]() {
      return this.preload;
    }
    set [S$.$preload](value) {
      this.preload = value;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    get [S$.$remote]() {
      return this.remote;
    }
    get [S$.$seekable]() {
      return this.seekable;
    }
    get [S$.$seeking]() {
      return this.seeking;
    }
    get [S$.$sinkId]() {
      return this.sinkId;
    }
    get [S$.$src]() {
      return this.src;
    }
    set [S$.$src](value) {
      this.src = value;
    }
    get [S$.$srcObject]() {
      return this.srcObject;
    }
    set [S$.$srcObject](value) {
      this.srcObject = value;
    }
    get [S$.$textTracks]() {
      return this.textTracks;
    }
    get [S$.$videoTracks]() {
      return this.videoTracks;
    }
    get [S$.$volume]() {
      return this.volume;
    }
    set [S$.$volume](value) {
      this.volume = value;
    }
    get [S$.$audioDecodedByteCount]() {
      return this.webkitAudioDecodedByteCount;
    }
    get [S$.$videoDecodedByteCount]() {
      return this.webkitVideoDecodedByteCount;
    }
    [S$.$addTextTrack](...args) {
      return this.addTextTrack.apply(this, args);
    }
    [S$.$canPlayType](...args) {
      return this.canPlayType.apply(this, args);
    }
    [S$.$captureStream](...args) {
      return this.captureStream.apply(this, args);
    }
    [S$.$load](...args) {
      return this.load.apply(this, args);
    }
    [S$.$pause](...args) {
      return this.pause.apply(this, args);
    }
    [S$.$play]() {
      return js_util.promiseToFuture(T$.dynamic(), this.play());
    }
    [S$.$setMediaKeys](mediaKeys) {
      return js_util.promiseToFuture(T$.dynamic(), this.setMediaKeys(mediaKeys));
    }
    [S$.$setSinkId](sinkId) {
      if (sinkId == null) dart.nullFailed(I[166], 20753, 27, "sinkId");
      return js_util.promiseToFuture(T$.dynamic(), this.setSinkId(sinkId));
    }
  };
  (html$.MediaElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.MediaElement).created.call(this);
    ;
  }).prototype = html$.MediaElement.prototype;
  dart.addRtiResources(html$.MediaElement, ["html|MediaElement"]);
  dart.setMethodSignature(html$.MediaElement, () => dart.global.Object.setPrototypeOf({
    [S$.$addTextTrack]: T$4.StringAndStringNAndStringNToTextTrack(),
    [S$.$canPlayType]: T$4.StringNAndStringNToString(),
    [S$.$captureStream]: T$4.VoidToMediaStream(),
    [S$.$load]: T$.VoidTovoid(),
    [S$.$pause]: T$.VoidTovoid(),
    [S$.$play]: T$.VoidToFuture(),
    [S$.$setMediaKeys]: T$4.MediaKeysNToFuture(),
    [S$.$setSinkId]: T$4.StringToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaElement))));
  dart.setStaticMethodSignature(html$.MediaElement, () => ['__']);
  dart.setGetterSignature(html$.MediaElement, () => dart.global.Object.setPrototypeOf({
    [S$.$audioTracks]: T$4.AudioTrackListN(),
    [S$.$autoplay]: T$.bool(),
    [S$.$buffered]: T$4.TimeRanges(),
    [S$.$controls]: T$.bool(),
    [S$.$controlsList]: T$4.DomTokenListN(),
    [S$.$crossOrigin]: T$.StringN(),
    [S$.$currentSrc]: T$.String(),
    [S$.$currentTime]: T$.num(),
    [S$.$defaultMuted]: T$.boolN(),
    [S$.$defaultPlaybackRate]: T$.num(),
    [S$.$disableRemotePlayback]: T$.bool(),
    [S$.$duration]: T$.num(),
    [S$.$ended]: T$.bool(),
    [S.$error]: T$4.MediaErrorN(),
    [S$.$loop]: T$.bool(),
    [S$.$mediaKeys]: T$4.MediaKeysN(),
    [S$.$muted]: T$.bool(),
    [S$.$networkState]: T$.intN(),
    [S$.$paused]: T$.bool(),
    [S$.$playbackRate]: T$.num(),
    [S$.$played]: T$4.TimeRanges(),
    [S$.$preload]: T$.String(),
    [S.$readyState]: T$.int(),
    [S$.$remote]: T$4.RemotePlaybackN(),
    [S$.$seekable]: T$4.TimeRanges(),
    [S$.$seeking]: T$.bool(),
    [S$.$sinkId]: T$.StringN(),
    [S$.$src]: T$.String(),
    [S$.$srcObject]: T$4.MediaStreamN(),
    [S$.$textTracks]: T$4.TextTrackListN(),
    [S$.$videoTracks]: T$4.VideoTrackListN(),
    [S$.$volume]: T$.num(),
    [S$.$audioDecodedByteCount]: T$.intN(),
    [S$.$videoDecodedByteCount]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaElement))));
  dart.setSetterSignature(html$.MediaElement, () => dart.global.Object.setPrototypeOf({
    [S$.$autoplay]: T$.bool(),
    [S$.$controls]: T$.bool(),
    [S$.$crossOrigin]: T$.StringN(),
    [S$.$currentTime]: T$.num(),
    [S$.$defaultMuted]: T$.boolN(),
    [S$.$defaultPlaybackRate]: T$.num(),
    [S$.$disableRemotePlayback]: T$.bool(),
    [S$.$loop]: T$.bool(),
    [S$.$muted]: T$.bool(),
    [S$.$playbackRate]: T$.num(),
    [S$.$preload]: T$.String(),
    [S$.$src]: T$.String(),
    [S$.$srcObject]: T$4.MediaStreamN(),
    [S$.$volume]: T$.num()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MediaElement))));
  dart.setLibraryUri(html$.MediaElement, I[167]);
  dart.setStaticFieldSignature(html$.MediaElement, () => ['HAVE_CURRENT_DATA', 'HAVE_ENOUGH_DATA', 'HAVE_FUTURE_DATA', 'HAVE_METADATA', 'HAVE_NOTHING', 'NETWORK_EMPTY', 'NETWORK_IDLE', 'NETWORK_LOADING', 'NETWORK_NO_SOURCE']);
  dart.defineLazy(html$.MediaElement, {
    /*html$.MediaElement.HAVE_CURRENT_DATA*/get HAVE_CURRENT_DATA() {
      return 2;
    },
    /*html$.MediaElement.HAVE_ENOUGH_DATA*/get HAVE_ENOUGH_DATA() {
      return 4;
    },
    /*html$.MediaElement.HAVE_FUTURE_DATA*/get HAVE_FUTURE_DATA() {
      return 3;
    },
    /*html$.MediaElement.HAVE_METADATA*/get HAVE_METADATA() {
      return 1;
    },
    /*html$.MediaElement.HAVE_NOTHING*/get HAVE_NOTHING() {
      return 0;
    },
    /*html$.MediaElement.NETWORK_EMPTY*/get NETWORK_EMPTY() {
      return 0;
    },
    /*html$.MediaElement.NETWORK_IDLE*/get NETWORK_IDLE() {
      return 1;
    },
    /*html$.MediaElement.NETWORK_LOADING*/get NETWORK_LOADING() {
      return 2;
    },
    /*html$.MediaElement.NETWORK_NO_SOURCE*/get NETWORK_NO_SOURCE() {
      return 3;
    }
  }, false);
  dart.registerExtension("HTMLMediaElement", html$.MediaElement);
  html$.AudioElement = class AudioElement extends html$.MediaElement {
    static __(src = null) {
      if (src != null) {
        return html$.AudioElement._create_1(src);
      }
      return html$.AudioElement._create_2();
    }
    static ['_#_#tearOff'](src = null) {
      return html$.AudioElement.__(src);
    }
    static _create_1(src) {
      return new Audio(src);
    }
    static _create_2() {
      return new Audio();
    }
    static ['_#created#tearOff']() {
      return new html$.AudioElement.created();
    }
    static new(src = null) {
      return html$.AudioElement.__(src);
    }
    static ['_#new#tearOff'](src = null) {
      return html$.AudioElement.new(src);
    }
  };
  (html$.AudioElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.AudioElement).created.call(this);
    ;
  }).prototype = html$.AudioElement.prototype;
  dart.addRtiResources(html$.AudioElement, ["html|AudioElement"]);
  dart.setStaticMethodSignature(html$.AudioElement, () => ['__', '_create_1', '_create_2', 'new']);
  dart.setLibraryUri(html$.AudioElement, I[167]);
  dart.registerExtension("HTMLAudioElement", html$.AudioElement);
  html$.AuthenticatorResponse = class AuthenticatorResponse extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.AuthenticatorResponse.__();
    }
    get [S$.$clientDataJson]() {
      return this.clientDataJSON;
    }
  };
  dart.addRtiResources(html$.AuthenticatorResponse, ["html|AuthenticatorResponse"]);
  dart.setStaticMethodSignature(html$.AuthenticatorResponse, () => ['__']);
  dart.setGetterSignature(html$.AuthenticatorResponse, () => dart.global.Object.setPrototypeOf({[S$.$clientDataJson]: T$4.ByteBufferN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AuthenticatorResponse))));
  dart.setLibraryUri(html$.AuthenticatorResponse, I[167]);
  dart.registerExtension("AuthenticatorResponse", html$.AuthenticatorResponse);
  html$.AuthenticatorAssertionResponse = class AuthenticatorAssertionResponse extends html$.AuthenticatorResponse {
    static ['_#_#tearOff']() {
      return html$.AuthenticatorAssertionResponse.__();
    }
    get [S$.$authenticatorData]() {
      return this.authenticatorData;
    }
    get [S$.$signature]() {
      return this.signature;
    }
  };
  dart.addRtiResources(html$.AuthenticatorAssertionResponse, ["html|AuthenticatorAssertionResponse"]);
  dart.setStaticMethodSignature(html$.AuthenticatorAssertionResponse, () => ['__']);
  dart.setGetterSignature(html$.AuthenticatorAssertionResponse, () => dart.global.Object.setPrototypeOf({
    [S$.$authenticatorData]: T$4.ByteBufferN(),
    [S$.$signature]: T$4.ByteBufferN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AuthenticatorAssertionResponse))));
  dart.setLibraryUri(html$.AuthenticatorAssertionResponse, I[167]);
  dart.registerExtension("AuthenticatorAssertionResponse", html$.AuthenticatorAssertionResponse);
  html$.AuthenticatorAttestationResponse = class AuthenticatorAttestationResponse extends html$.AuthenticatorResponse {
    static ['_#_#tearOff']() {
      return html$.AuthenticatorAttestationResponse.__();
    }
    get [S$.$attestationObject]() {
      return this.attestationObject;
    }
  };
  dart.addRtiResources(html$.AuthenticatorAttestationResponse, ["html|AuthenticatorAttestationResponse"]);
  dart.setStaticMethodSignature(html$.AuthenticatorAttestationResponse, () => ['__']);
  dart.setGetterSignature(html$.AuthenticatorAttestationResponse, () => dart.global.Object.setPrototypeOf({[S$.$attestationObject]: T$4.ByteBufferN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.AuthenticatorAttestationResponse))));
  dart.setLibraryUri(html$.AuthenticatorAttestationResponse, I[167]);
  dart.registerExtension("AuthenticatorAttestationResponse", html$.AuthenticatorAttestationResponse);
  html$.BRElement = class BRElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.BRElement.__();
    }
    static new() {
      return html$.document.createElement("br");
    }
    static ['_#new#tearOff']() {
      return html$.BRElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.BRElement.created();
    }
  };
  (html$.BRElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.BRElement).created.call(this);
    ;
  }).prototype = html$.BRElement.prototype;
  dart.addRtiResources(html$.BRElement, ["html|BRElement"]);
  dart.setStaticMethodSignature(html$.BRElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.BRElement, I[167]);
  dart.registerExtension("HTMLBRElement", html$.BRElement);
  html$.BackgroundFetchEvent = class BackgroundFetchEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.BackgroundFetchEvent.__();
    }
    static new(type, init) {
      if (type == null) dart.nullFailed(I[166], 1298, 39, "type");
      if (init == null) dart.nullFailed(I[166], 1298, 49, "init");
      let init_1 = html_common.convertDartToNative_Dictionary(init);
      return html$.BackgroundFetchEvent._create_1(type, init_1);
    }
    static ['_#new#tearOff'](type, init) {
      if (type == null) dart.nullFailed(I[166], 1298, 39, "type");
      if (init == null) dart.nullFailed(I[166], 1298, 49, "init");
      return html$.BackgroundFetchEvent.new(type, init);
    }
    static _create_1(type, init) {
      return new BackgroundFetchEvent(type, init);
    }
    get [S.$id]() {
      return this.id;
    }
  };
  dart.addRtiResources(html$.BackgroundFetchEvent, ["html|BackgroundFetchEvent"]);
  dart.setStaticMethodSignature(html$.BackgroundFetchEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.BackgroundFetchEvent, () => dart.global.Object.setPrototypeOf({[S.$id]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BackgroundFetchEvent))));
  dart.setLibraryUri(html$.BackgroundFetchEvent, I[167]);
  dart.registerExtension("BackgroundFetchEvent", html$.BackgroundFetchEvent);
  html$.BackgroundFetchClickEvent = class BackgroundFetchClickEvent$ extends html$.BackgroundFetchEvent {
    static ['_#_#tearOff']() {
      return html$.BackgroundFetchClickEvent.__();
    }
    static new(type, init) {
      if (type == null) dart.nullFailed(I[166], 1275, 44, "type");
      if (init == null) dart.nullFailed(I[166], 1275, 54, "init");
      let init_1 = html_common.convertDartToNative_Dictionary(init);
      return html$.BackgroundFetchClickEvent._create_1(type, init_1);
    }
    static ['_#new#tearOff'](type, init) {
      if (type == null) dart.nullFailed(I[166], 1275, 44, "type");
      if (init == null) dart.nullFailed(I[166], 1275, 54, "init");
      return html$.BackgroundFetchClickEvent.new(type, init);
    }
    static _create_1(type, init) {
      return new BackgroundFetchClickEvent(type, init);
    }
    get [S$.$state]() {
      return this.state;
    }
  };
  dart.addRtiResources(html$.BackgroundFetchClickEvent, ["html|BackgroundFetchClickEvent"]);
  dart.setStaticMethodSignature(html$.BackgroundFetchClickEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.BackgroundFetchClickEvent, () => dart.global.Object.setPrototypeOf({[S$.$state]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BackgroundFetchClickEvent))));
  dart.setLibraryUri(html$.BackgroundFetchClickEvent, I[167]);
  dart.registerExtension("BackgroundFetchClickEvent", html$.BackgroundFetchClickEvent);
  html$.BackgroundFetchFailEvent = class BackgroundFetchFailEvent$ extends html$.BackgroundFetchEvent {
    static ['_#_#tearOff']() {
      return html$.BackgroundFetchFailEvent.__();
    }
    static new(type, init) {
      if (type == null) dart.nullFailed(I[166], 1318, 43, "type");
      if (init == null) dart.nullFailed(I[166], 1318, 53, "init");
      let init_1 = html_common.convertDartToNative_Dictionary(init);
      return html$.BackgroundFetchFailEvent._create_1(type, init_1);
    }
    static ['_#new#tearOff'](type, init) {
      if (type == null) dart.nullFailed(I[166], 1318, 43, "type");
      if (init == null) dart.nullFailed(I[166], 1318, 53, "init");
      return html$.BackgroundFetchFailEvent.new(type, init);
    }
    static _create_1(type, init) {
      return new BackgroundFetchFailEvent(type, init);
    }
    get [S$.$fetches]() {
      return this.fetches;
    }
  };
  dart.addRtiResources(html$.BackgroundFetchFailEvent, ["html|BackgroundFetchFailEvent"]);
  dart.setStaticMethodSignature(html$.BackgroundFetchFailEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.BackgroundFetchFailEvent, () => dart.global.Object.setPrototypeOf({[S$.$fetches]: T$4.ListNOfBackgroundFetchSettledFetch()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BackgroundFetchFailEvent))));
  dart.setLibraryUri(html$.BackgroundFetchFailEvent, I[167]);
  dart.registerExtension("BackgroundFetchFailEvent", html$.BackgroundFetchFailEvent);
  html$.BackgroundFetchFetch = class BackgroundFetchFetch extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.BackgroundFetchFetch.__();
    }
    get [S$.$request]() {
      return this.request;
    }
  };
  dart.addRtiResources(html$.BackgroundFetchFetch, ["html|BackgroundFetchFetch"]);
  dart.setStaticMethodSignature(html$.BackgroundFetchFetch, () => ['__']);
  dart.setGetterSignature(html$.BackgroundFetchFetch, () => dart.global.Object.setPrototypeOf({[S$.$request]: T$4._RequestN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BackgroundFetchFetch))));
  dart.setLibraryUri(html$.BackgroundFetchFetch, I[167]);
  dart.registerExtension("BackgroundFetchFetch", html$.BackgroundFetchFetch);
  html$.BackgroundFetchManager = class BackgroundFetchManager extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.BackgroundFetchManager.__();
    }
    [S$.$fetch](id, requests, options = null) {
      if (id == null) dart.nullFailed(I[166], 1354, 52, "id");
      if (requests == null) dart.nullFailed(I[166], 1354, 63, "requests");
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$4.BackgroundFetchRegistration(), this.fetch(id, requests, options_dict));
    }
    [S.$get](id) {
      if (id == null) dart.nullFailed(I[166], 1369, 50, "id");
      return js_util.promiseToFuture(T$4.BackgroundFetchRegistration(), this.get(id));
    }
    [S$.$getIds]() {
      return js_util.promiseToFuture(T$.List(), this.getIds());
    }
  };
  dart.addRtiResources(html$.BackgroundFetchManager, ["html|BackgroundFetchManager"]);
  dart.setMethodSignature(html$.BackgroundFetchManager, () => dart.global.Object.setPrototypeOf({
    [S$.$fetch]: T$4.StringAndObjectAndMapNToFutureOfBackgroundFetchRegistration(),
    [S.$get]: T$4.StringToFutureOfBackgroundFetchRegistration(),
    [S$.$getIds]: T$4.VoidToFutureOfList()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.BackgroundFetchManager))));
  dart.setStaticMethodSignature(html$.BackgroundFetchManager, () => ['__']);
  dart.setLibraryUri(html$.BackgroundFetchManager, I[167]);
  dart.registerExtension("BackgroundFetchManager", html$.BackgroundFetchManager);
  html$.BackgroundFetchRegistration = class BackgroundFetchRegistration extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.BackgroundFetchRegistration.__();
    }
    get [S$.$downloadTotal]() {
      return this.downloadTotal;
    }
    get [S$.$downloaded]() {
      return this.downloaded;
    }
    get [S.$id]() {
      return this.id;
    }
    get [S.$title]() {
      return this.title;
    }
    get [S$.$totalDownloadSize]() {
      return this.totalDownloadSize;
    }
    get [S$.$uploadTotal]() {
      return this.uploadTotal;
    }
    get [S$.$uploaded]() {
      return this.uploaded;
    }
    [S.$abort]() {
      return js_util.promiseToFuture(T$.bool(), this.abort());
    }
  };
  dart.addRtiResources(html$.BackgroundFetchRegistration, ["html|BackgroundFetchRegistration"]);
  dart.setMethodSignature(html$.BackgroundFetchRegistration, () => dart.global.Object.setPrototypeOf({[S.$abort]: T$1.VoidToFutureOfbool()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.BackgroundFetchRegistration))));
  dart.setStaticMethodSignature(html$.BackgroundFetchRegistration, () => ['__']);
  dart.setGetterSignature(html$.BackgroundFetchRegistration, () => dart.global.Object.setPrototypeOf({
    [S$.$downloadTotal]: T$.intN(),
    [S$.$downloaded]: T$.intN(),
    [S.$id]: T$.StringN(),
    [S.$title]: T$.StringN(),
    [S$.$totalDownloadSize]: T$.intN(),
    [S$.$uploadTotal]: T$.intN(),
    [S$.$uploaded]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BackgroundFetchRegistration))));
  dart.setLibraryUri(html$.BackgroundFetchRegistration, I[167]);
  dart.registerExtension("BackgroundFetchRegistration", html$.BackgroundFetchRegistration);
  html$.BackgroundFetchSettledFetch = class BackgroundFetchSettledFetch$ extends html$.BackgroundFetchFetch {
    static ['_#_#tearOff']() {
      return html$.BackgroundFetchSettledFetch.__();
    }
    static new(request, response) {
      if (request == null) dart.nullFailed(I[166], 1414, 48, "request");
      if (response == null) dart.nullFailed(I[166], 1414, 67, "response");
      return html$.BackgroundFetchSettledFetch._create_1(request, response);
    }
    static ['_#new#tearOff'](request, response) {
      if (request == null) dart.nullFailed(I[166], 1414, 48, "request");
      if (response == null) dart.nullFailed(I[166], 1414, 67, "response");
      return html$.BackgroundFetchSettledFetch.new(request, response);
    }
    static _create_1(request, response) {
      return new BackgroundFetchSettledFetch(request, response);
    }
    get [S$.$response]() {
      return this.response;
    }
  };
  dart.addRtiResources(html$.BackgroundFetchSettledFetch, ["html|BackgroundFetchSettledFetch"]);
  dart.setStaticMethodSignature(html$.BackgroundFetchSettledFetch, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.BackgroundFetchSettledFetch, () => dart.global.Object.setPrototypeOf({[S$.$response]: T$4._ResponseN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BackgroundFetchSettledFetch))));
  dart.setLibraryUri(html$.BackgroundFetchSettledFetch, I[167]);
  dart.registerExtension("BackgroundFetchSettledFetch", html$.BackgroundFetchSettledFetch);
  html$.BackgroundFetchedEvent = class BackgroundFetchedEvent$ extends html$.BackgroundFetchEvent {
    static ['_#_#tearOff']() {
      return html$.BackgroundFetchedEvent.__();
    }
    static new(type, init) {
      if (type == null) dart.nullFailed(I[166], 1436, 41, "type");
      if (init == null) dart.nullFailed(I[166], 1436, 51, "init");
      let init_1 = html_common.convertDartToNative_Dictionary(init);
      return html$.BackgroundFetchedEvent._create_1(type, init_1);
    }
    static ['_#new#tearOff'](type, init) {
      if (type == null) dart.nullFailed(I[166], 1436, 41, "type");
      if (init == null) dart.nullFailed(I[166], 1436, 51, "init");
      return html$.BackgroundFetchedEvent.new(type, init);
    }
    static _create_1(type, init) {
      return new BackgroundFetchedEvent(type, init);
    }
    get [S$.$fetches]() {
      return this.fetches;
    }
    [S$.$updateUI](title) {
      if (title == null) dart.nullFailed(I[166], 1445, 26, "title");
      return js_util.promiseToFuture(T$.dynamic(), this.updateUI(title));
    }
  };
  dart.addRtiResources(html$.BackgroundFetchedEvent, ["html|BackgroundFetchedEvent"]);
  dart.setMethodSignature(html$.BackgroundFetchedEvent, () => dart.global.Object.setPrototypeOf({[S$.$updateUI]: T$4.StringToFuture()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.BackgroundFetchedEvent))));
  dart.setStaticMethodSignature(html$.BackgroundFetchedEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.BackgroundFetchedEvent, () => dart.global.Object.setPrototypeOf({[S$.$fetches]: T$4.ListNOfBackgroundFetchSettledFetch()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BackgroundFetchedEvent))));
  dart.setLibraryUri(html$.BackgroundFetchedEvent, I[167]);
  dart.registerExtension("BackgroundFetchedEvent", html$.BackgroundFetchedEvent);
  html$.BarProp = class BarProp extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.BarProp.__();
    }
    get [S$.$visible]() {
      return this.visible;
    }
  };
  dart.addRtiResources(html$.BarProp, ["html|BarProp"]);
  dart.setStaticMethodSignature(html$.BarProp, () => ['__']);
  dart.setGetterSignature(html$.BarProp, () => dart.global.Object.setPrototypeOf({[S$.$visible]: T$.boolN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BarProp))));
  dart.setLibraryUri(html$.BarProp, I[167]);
  dart.registerExtension("BarProp", html$.BarProp);
  html$.BarcodeDetector = class BarcodeDetector$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.BarcodeDetector.__();
    }
    static new() {
      return html$.BarcodeDetector._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.BarcodeDetector.new();
    }
    static _create_1() {
      return new BarcodeDetector();
    }
    [S$.$detect](image) {
      return js_util.promiseToFuture(T$.List(), this.detect(image));
    }
  };
  dart.addRtiResources(html$.BarcodeDetector, ["html|BarcodeDetector"]);
  dart.setMethodSignature(html$.BarcodeDetector, () => dart.global.Object.setPrototypeOf({[S$.$detect]: T$4.dynamicToFutureOfList()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.BarcodeDetector))));
  dart.setStaticMethodSignature(html$.BarcodeDetector, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$.BarcodeDetector, I[167]);
  dart.registerExtension("BarcodeDetector", html$.BarcodeDetector);
  html$.BaseElement = class BaseElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.BaseElement.__();
    }
    static new() {
      return html$.document.createElement("base");
    }
    static ['_#new#tearOff']() {
      return html$.BaseElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.BaseElement.created();
    }
    get [S$.$href]() {
      return this.href;
    }
    set [S$.$href](value) {
      this.href = value;
    }
    get [S.$target]() {
      return this.target;
    }
    set [S.$target](value) {
      this.target = value;
    }
  };
  (html$.BaseElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.BaseElement).created.call(this);
    ;
  }).prototype = html$.BaseElement.prototype;
  dart.addRtiResources(html$.BaseElement, ["html|BaseElement"]);
  dart.setStaticMethodSignature(html$.BaseElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.BaseElement, () => dart.global.Object.setPrototypeOf({
    [S$.$href]: T$.String(),
    [S.$target]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BaseElement))));
  dart.setSetterSignature(html$.BaseElement, () => dart.global.Object.setPrototypeOf({
    [S$.$href]: T$.String(),
    [S.$target]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.BaseElement))));
  dart.setLibraryUri(html$.BaseElement, I[167]);
  dart.registerExtension("HTMLBaseElement", html$.BaseElement);
  html$.BatteryManager = class BatteryManager extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.BatteryManager.__();
    }
    get [S$.$charging]() {
      return this.charging;
    }
    get [S$.$chargingTime]() {
      return this.chargingTime;
    }
    get [S$.$dischargingTime]() {
      return this.dischargingTime;
    }
    get [S$.$level]() {
      return this.level;
    }
  };
  dart.addRtiResources(html$.BatteryManager, ["html|BatteryManager"]);
  dart.setStaticMethodSignature(html$.BatteryManager, () => ['__']);
  dart.setGetterSignature(html$.BatteryManager, () => dart.global.Object.setPrototypeOf({
    [S$.$charging]: T$.boolN(),
    [S$.$chargingTime]: T$3.numN(),
    [S$.$dischargingTime]: T$3.numN(),
    [S$.$level]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BatteryManager))));
  dart.setLibraryUri(html$.BatteryManager, I[167]);
  dart.registerExtension("BatteryManager", html$.BatteryManager);
  html$.BeforeInstallPromptEvent = class BeforeInstallPromptEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.BeforeInstallPromptEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 1544, 43, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.BeforeInstallPromptEvent._create_1(type, eventInitDict_1);
      }
      return html$.BeforeInstallPromptEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 1544, 43, "type");
      return html$.BeforeInstallPromptEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new BeforeInstallPromptEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new BeforeInstallPromptEvent(type);
    }
    get [S$.$platforms]() {
      return this.platforms;
    }
    get [S$.$userChoice]() {
      return html$.promiseToFutureAsMap(this.userChoice);
    }
    [S$.$prompt]() {
      return js_util.promiseToFuture(T$.dynamic(), this.prompt());
    }
  };
  dart.addRtiResources(html$.BeforeInstallPromptEvent, ["html|BeforeInstallPromptEvent"]);
  dart.setMethodSignature(html$.BeforeInstallPromptEvent, () => dart.global.Object.setPrototypeOf({[S$.$prompt]: T$.VoidToFuture()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.BeforeInstallPromptEvent))));
  dart.setStaticMethodSignature(html$.BeforeInstallPromptEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.BeforeInstallPromptEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$platforms]: T$.ListNOfString(),
    [S$.$userChoice]: T$4.FutureOfMapNOfString$dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BeforeInstallPromptEvent))));
  dart.setLibraryUri(html$.BeforeInstallPromptEvent, I[167]);
  dart.registerExtension("BeforeInstallPromptEvent", html$.BeforeInstallPromptEvent);
  html$.BeforeUnloadEvent = class BeforeUnloadEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.BeforeUnloadEvent.__();
    }
    get [S$.$returnValue]() {
      return this.returnValue;
    }
    set [S$.$returnValue](value) {
      this.returnValue = value;
    }
  };
  dart.addRtiResources(html$.BeforeUnloadEvent, ["html|BeforeUnloadEvent"]);
  dart.setStaticMethodSignature(html$.BeforeUnloadEvent, () => ['__']);
  dart.setGetterSignature(html$.BeforeUnloadEvent, () => dart.global.Object.setPrototypeOf({[S$.$returnValue]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BeforeUnloadEvent))));
  dart.setSetterSignature(html$.BeforeUnloadEvent, () => dart.global.Object.setPrototypeOf({[S$.$returnValue]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.BeforeUnloadEvent))));
  dart.setLibraryUri(html$.BeforeUnloadEvent, I[167]);
  dart.registerExtension("BeforeUnloadEvent", html$.BeforeUnloadEvent);
  html$.Blob = class Blob extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Blob.__();
    }
    get [S$.$size]() {
      return this.size;
    }
    get [S.$type]() {
      return this.type;
    }
    [S$.$slice](...args) {
      return this.slice.apply(this, args);
    }
    static new(blobParts, type = null, endings = null) {
      if (blobParts == null) dart.nullFailed(I[166], 1600, 21, "blobParts");
      if (type == null && endings == null) {
        return T$4.Blob()[_as](html$.Blob._create_1(blobParts));
      }
      let bag = html$.Blob._create_bag();
      if (type != null) html$.Blob._bag_set(bag, "type", type);
      if (endings != null) html$.Blob._bag_set(bag, "endings", endings);
      return T$4.Blob()[_as](html$.Blob._create_2(blobParts, bag));
    }
    static ['_#new#tearOff'](blobParts, type = null, endings = null) {
      if (blobParts == null) dart.nullFailed(I[166], 1600, 21, "blobParts");
      return html$.Blob.new(blobParts, type, endings);
    }
    static _create_1(parts) {
      return new self.Blob(parts);
    }
    static _create_2(parts, bag) {
      return new self.Blob(parts, bag);
    }
    static _create_bag() {
      return {};
    }
    static _bag_set(bag, key, value) {
      bag[key] = value;
    }
  };
  dart.addRtiResources(html$.Blob, ["html|Blob"]);
  dart.setMethodSignature(html$.Blob, () => dart.global.Object.setPrototypeOf({[S$.$slice]: T$4.intNAndintNAndStringNToBlob()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Blob))));
  dart.setStaticMethodSignature(html$.Blob, () => ['__', 'new', '_create_1', '_create_2', '_create_bag', '_bag_set']);
  dart.setGetterSignature(html$.Blob, () => dart.global.Object.setPrototypeOf({
    [S$.$size]: T$.int(),
    [S.$type]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Blob))));
  dart.setLibraryUri(html$.Blob, I[167]);
  dart.registerExtension("Blob", html$.Blob);
  html$.BlobEvent = class BlobEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.BlobEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 1639, 28, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 1639, 38, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.BlobEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 1639, 28, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 1639, 38, "eventInitDict");
      return html$.BlobEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new BlobEvent(type, eventInitDict);
    }
    get [S$.$data]() {
      return this.data;
    }
    get [S$.$timecode]() {
      return this.timecode;
    }
  };
  dart.addRtiResources(html$.BlobEvent, ["html|BlobEvent"]);
  dart.setStaticMethodSignature(html$.BlobEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.BlobEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$data]: T$4.BlobN(),
    [S$.$timecode]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BlobEvent))));
  dart.setLibraryUri(html$.BlobEvent, I[167]);
  dart.registerExtension("BlobEvent", html$.BlobEvent);
  html$.BluetoothRemoteGattDescriptor = class BluetoothRemoteGattDescriptor extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.BluetoothRemoteGattDescriptor.__();
    }
    get [S$.$characteristic]() {
      return this.characteristic;
    }
    get [S$.$uuid]() {
      return this.uuid;
    }
    get [S.$value]() {
      return this.value;
    }
    [S$.$readValue]() {
      return js_util.promiseToFuture(T$.dynamic(), this.readValue());
    }
    [S$.$writeValue](value) {
      return js_util.promiseToFuture(T$.dynamic(), this.writeValue(value));
    }
  };
  dart.addRtiResources(html$.BluetoothRemoteGattDescriptor, ["html|BluetoothRemoteGattDescriptor"]);
  dart.setMethodSignature(html$.BluetoothRemoteGattDescriptor, () => dart.global.Object.setPrototypeOf({
    [S$.$readValue]: T$.VoidToFuture(),
    [S$.$writeValue]: T$.dynamicToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.BluetoothRemoteGattDescriptor))));
  dart.setStaticMethodSignature(html$.BluetoothRemoteGattDescriptor, () => ['__']);
  dart.setGetterSignature(html$.BluetoothRemoteGattDescriptor, () => dart.global.Object.setPrototypeOf({
    [S$.$characteristic]: T$4._BluetoothRemoteGATTCharacteristicN(),
    [S$.$uuid]: T$.StringN(),
    [S.$value]: T$4.ByteDataN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BluetoothRemoteGattDescriptor))));
  dart.setLibraryUri(html$.BluetoothRemoteGattDescriptor, I[167]);
  dart.registerExtension("BluetoothRemoteGATTDescriptor", html$.BluetoothRemoteGattDescriptor);
  html$.Body = class Body extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Body.__();
    }
    get [S$.$bodyUsed]() {
      return this.bodyUsed;
    }
    [S$.$arrayBuffer]() {
      return js_util.promiseToFuture(T$.dynamic(), this.arrayBuffer());
    }
    [S$.$blob]() {
      return js_util.promiseToFuture(T$4.Blob(), this.blob());
    }
    [S$.$formData]() {
      return js_util.promiseToFuture(T$4.FormData(), this.formData());
    }
    [S$.$json]() {
      return js_util.promiseToFuture(T$.dynamic(), this.json());
    }
    [S.$text]() {
      return js_util.promiseToFuture(T$.String(), this.text());
    }
  };
  dart.addRtiResources(html$.Body, ["html|Body"]);
  dart.setMethodSignature(html$.Body, () => dart.global.Object.setPrototypeOf({
    [S$.$arrayBuffer]: T$.VoidToFuture(),
    [S$.$blob]: T$4.VoidToFutureOfBlob(),
    [S$.$formData]: T$4.VoidToFutureOfFormData(),
    [S$.$json]: T$.VoidToFuture(),
    [S.$text]: T$2.VoidToFutureOfString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Body))));
  dart.setStaticMethodSignature(html$.Body, () => ['__']);
  dart.setGetterSignature(html$.Body, () => dart.global.Object.setPrototypeOf({[S$.$bodyUsed]: T$.boolN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Body))));
  dart.setLibraryUri(html$.Body, I[167]);
  dart.registerExtension("Body", html$.Body);
  html$.BodyElement = class BodyElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.BodyElement.__();
    }
    static new() {
      return html$.document.createElement("body");
    }
    static ['_#new#tearOff']() {
      return html$.BodyElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.BodyElement.created();
    }
    get [S.$onBlur]() {
      return html$.BodyElement.blurEvent.forElement(this);
    }
    get [S.$onError]() {
      return html$.BodyElement.errorEvent.forElement(this);
    }
    get [S.$onFocus]() {
      return html$.BodyElement.focusEvent.forElement(this);
    }
    get [S$.$onHashChange]() {
      return html$.BodyElement.hashChangeEvent.forElement(this);
    }
    get [S.$onLoad]() {
      return html$.BodyElement.loadEvent.forElement(this);
    }
    get [S$.$onMessage]() {
      return html$.BodyElement.messageEvent.forElement(this);
    }
    get [S$.$onOffline]() {
      return html$.BodyElement.offlineEvent.forElement(this);
    }
    get [S$.$onOnline]() {
      return html$.BodyElement.onlineEvent.forElement(this);
    }
    get [S$.$onPopState]() {
      return html$.BodyElement.popStateEvent.forElement(this);
    }
    get [S$.$onResize]() {
      return html$.BodyElement.resizeEvent.forElement(this);
    }
    get [S$.$onScroll]() {
      return html$.BodyElement.scrollEvent.forElement(this);
    }
    get [S$.$onStorage]() {
      return html$.BodyElement.storageEvent.forElement(this);
    }
    get [S$.$onUnload]() {
      return html$.BodyElement.unloadEvent.forElement(this);
    }
  };
  (html$.BodyElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.BodyElement).created.call(this);
    ;
  }).prototype = html$.BodyElement.prototype;
  dart.addRtiResources(html$.BodyElement, ["html|BodyElement", "html|WindowEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.BodyElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.BodyElement, () => dart.global.Object.setPrototypeOf({
    [S$.$onHashChange]: T$4.ElementStreamOfEvent(),
    [S$.$onMessage]: T$4.ElementStreamOfMessageEvent(),
    [S$.$onOffline]: T$4.ElementStreamOfEvent(),
    [S$.$onOnline]: T$4.ElementStreamOfEvent(),
    [S$.$onPopState]: T$4.ElementStreamOfPopStateEvent(),
    [S$.$onStorage]: T$4.ElementStreamOfStorageEvent(),
    [S$.$onUnload]: T$4.ElementStreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BodyElement))));
  dart.setLibraryUri(html$.BodyElement, I[167]);
  dart.setStaticFieldSignature(html$.BodyElement, () => ['blurEvent', 'errorEvent', 'focusEvent', 'hashChangeEvent', 'loadEvent', 'messageEvent', 'offlineEvent', 'onlineEvent', 'popStateEvent', 'resizeEvent', 'scrollEvent', 'storageEvent', 'unloadEvent']);
  dart.defineLazy(html$.BodyElement, {
    /*html$.BodyElement.blurEvent*/get blurEvent() {
      return C[284] || CT.C284;
    },
    /*html$.BodyElement.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.BodyElement.focusEvent*/get focusEvent() {
      return C[303] || CT.C303;
    },
    /*html$.BodyElement.hashChangeEvent*/get hashChangeEvent() {
      return C[362] || CT.C362;
    },
    /*html$.BodyElement.loadEvent*/get loadEvent() {
      return C[309] || CT.C309;
    },
    /*html$.BodyElement.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    },
    /*html$.BodyElement.offlineEvent*/get offlineEvent() {
      return C[364] || CT.C364;
    },
    /*html$.BodyElement.onlineEvent*/get onlineEvent() {
      return C[365] || CT.C365;
    },
    /*html$.BodyElement.popStateEvent*/get popStateEvent() {
      return C[366] || CT.C366;
    },
    /*html$.BodyElement.resizeEvent*/get resizeEvent() {
      return C[325] || CT.C325;
    },
    /*html$.BodyElement.scrollEvent*/get scrollEvent() {
      return C[326] || CT.C326;
    },
    /*html$.BodyElement.storageEvent*/get storageEvent() {
      return C[367] || CT.C367;
    },
    /*html$.BodyElement.unloadEvent*/get unloadEvent() {
      return C[368] || CT.C368;
    }
  }, false);
  dart.registerExtension("HTMLBodyElement", html$.BodyElement);
  html$.BroadcastChannel = class BroadcastChannel$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.BroadcastChannel.__();
    }
    static new(name) {
      if (name == null) dart.nullFailed(I[166], 1883, 35, "name");
      return html$.BroadcastChannel._create_1(name);
    }
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[166], 1883, 35, "name");
      return html$.BroadcastChannel.new(name);
    }
    static _create_1(name) {
      return new BroadcastChannel(name);
    }
    get [$name]() {
      return this.name;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$.$postMessage](...args) {
      return this.postMessage.apply(this, args);
    }
    get [S$.$onMessage]() {
      return html$.BroadcastChannel.messageEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.BroadcastChannel, ["html|BroadcastChannel"]);
  dart.setMethodSignature(html$.BroadcastChannel, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$.VoidTovoid(),
    [S$.$postMessage]: T$.ObjectTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.BroadcastChannel))));
  dart.setStaticMethodSignature(html$.BroadcastChannel, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.BroadcastChannel, () => dart.global.Object.setPrototypeOf({
    [$name]: T$.StringN(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BroadcastChannel))));
  dart.setLibraryUri(html$.BroadcastChannel, I[167]);
  dart.setStaticFieldSignature(html$.BroadcastChannel, () => ['messageEvent']);
  dart.defineLazy(html$.BroadcastChannel, {
    /*html$.BroadcastChannel.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    }
  }, false);
  dart.registerExtension("BroadcastChannel", html$.BroadcastChannel);
  html$.BudgetState = class BudgetState extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.BudgetState.__();
    }
    get [S$.$budgetAt]() {
      return this.budgetAt;
    }
    get [S$.$time]() {
      return this.time;
    }
  };
  dart.addRtiResources(html$.BudgetState, ["html|BudgetState"]);
  dart.setStaticMethodSignature(html$.BudgetState, () => ['__']);
  dart.setGetterSignature(html$.BudgetState, () => dart.global.Object.setPrototypeOf({
    [S$.$budgetAt]: T$3.numN(),
    [S$.$time]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.BudgetState))));
  dart.setLibraryUri(html$.BudgetState, I[167]);
  dart.registerExtension("BudgetState", html$.BudgetState);
  html$.ButtonElement = class ButtonElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ButtonElement.__();
    }
    static new() {
      return html$.document.createElement("button");
    }
    static ['_#new#tearOff']() {
      return html$.ButtonElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.ButtonElement.created();
    }
    get [S$.$autofocus]() {
      return this.autofocus;
    }
    set [S$.$autofocus](value) {
      this.autofocus = value;
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$form]() {
      return this.form;
    }
    get [S$.$formAction]() {
      return this.formAction;
    }
    set [S$.$formAction](value) {
      this.formAction = value;
    }
    get [S$.$formEnctype]() {
      return this.formEnctype;
    }
    set [S$.$formEnctype](value) {
      this.formEnctype = value;
    }
    get [S$.$formMethod]() {
      return this.formMethod;
    }
    set [S$.$formMethod](value) {
      this.formMethod = value;
    }
    get [S$.$formNoValidate]() {
      return this.formNoValidate;
    }
    set [S$.$formNoValidate](value) {
      this.formNoValidate = value;
    }
    get [S$.$formTarget]() {
      return this.formTarget;
    }
    set [S$.$formTarget](value) {
      this.formTarget = value;
    }
    get [S$.$labels]() {
      return this.labels;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
    get [S$.$validationMessage]() {
      return this.validationMessage;
    }
    get [S$.$validity]() {
      return this.validity;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
    get [S$.$willValidate]() {
      return this.willValidate;
    }
    [S$.$checkValidity](...args) {
      return this.checkValidity.apply(this, args);
    }
    [S$.$reportValidity](...args) {
      return this.reportValidity.apply(this, args);
    }
    [S$.$setCustomValidity](...args) {
      return this.setCustomValidity.apply(this, args);
    }
  };
  (html$.ButtonElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ButtonElement).created.call(this);
    ;
  }).prototype = html$.ButtonElement.prototype;
  dart.addRtiResources(html$.ButtonElement, ["html|ButtonElement"]);
  dart.setMethodSignature(html$.ButtonElement, () => dart.global.Object.setPrototypeOf({
    [S$.$checkValidity]: T$.VoidTobool(),
    [S$.$reportValidity]: T$.VoidTobool(),
    [S$.$setCustomValidity]: T$.StringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ButtonElement))));
  dart.setStaticMethodSignature(html$.ButtonElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.ButtonElement, () => dart.global.Object.setPrototypeOf({
    [S$.$autofocus]: T$.bool(),
    [S$.$disabled]: T$.bool(),
    [S$.$form]: T$4.FormElementN(),
    [S$.$formAction]: T$.StringN(),
    [S$.$formEnctype]: T$.StringN(),
    [S$.$formMethod]: T$.StringN(),
    [S$.$formNoValidate]: T$.bool(),
    [S$.$formTarget]: T$.String(),
    [S$.$labels]: T$4.ListNOfNode(),
    [$name]: T$.String(),
    [S.$type]: T$.String(),
    [S$.$validationMessage]: T$.String(),
    [S$.$validity]: T$4.ValidityState(),
    [S.$value]: T$.String(),
    [S$.$willValidate]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ButtonElement))));
  dart.setSetterSignature(html$.ButtonElement, () => dart.global.Object.setPrototypeOf({
    [S$.$autofocus]: T$.bool(),
    [S$.$disabled]: T$.bool(),
    [S$.$formAction]: T$.StringN(),
    [S$.$formEnctype]: T$.StringN(),
    [S$.$formMethod]: T$.StringN(),
    [S$.$formNoValidate]: T$.bool(),
    [S$.$formTarget]: T$.String(),
    [$name]: T$.String(),
    [S.$type]: T$.String(),
    [S.$value]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.ButtonElement))));
  dart.setLibraryUri(html$.ButtonElement, I[167]);
  dart.registerExtension("HTMLButtonElement", html$.ButtonElement);
  html$.CharacterData = class CharacterData extends html$.Node {
    static ['_#_#tearOff']() {
      return html$.CharacterData.__();
    }
    get [S$.$data]() {
      return this.data;
    }
    set [S$.$data](value) {
      this.data = value;
    }
    get [$length]() {
      return this.length;
    }
    [S$.$appendData](...args) {
      return this.appendData.apply(this, args);
    }
    [S$.$deleteData](...args) {
      return this.deleteData.apply(this, args);
    }
    [S$.$insertData](...args) {
      return this.insertData.apply(this, args);
    }
    [S$.$replaceData](...args) {
      return this.replaceData.apply(this, args);
    }
    [S$.$substringData](...args) {
      return this.substringData.apply(this, args);
    }
    [S.$after](...args) {
      return this.after.apply(this, args);
    }
    [S.$before](...args) {
      return this.before.apply(this, args);
    }
    get [S.$nextElementSibling]() {
      return this.nextElementSibling;
    }
    get [S.$previousElementSibling]() {
      return this.previousElementSibling;
    }
  };
  dart.addRtiResources(html$.CharacterData, ["html|CharacterData", "html|ChildNode", "html|NonDocumentTypeChildNode", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.CharacterData, () => dart.global.Object.setPrototypeOf({
    [S$.$appendData]: T$.StringTovoid(),
    [S$.$deleteData]: T$.intAndintTovoid(),
    [S$.$insertData]: T$4.intAndStringTovoid(),
    [S$.$replaceData]: T$0.intAndintAndStringTovoid(),
    [S$.$substringData]: T$4.intAndintToString(),
    [S.$after]: T$.ObjectTovoid(),
    [S.$before]: T$.ObjectTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CharacterData))));
  dart.setStaticMethodSignature(html$.CharacterData, () => ['__']);
  dart.setGetterSignature(html$.CharacterData, () => dart.global.Object.setPrototypeOf({
    [S$.$data]: T$.StringN(),
    [$length]: T$.intN(),
    [S.$nextElementSibling]: T$3.ElementN(),
    [S.$previousElementSibling]: T$3.ElementN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CharacterData))));
  dart.setSetterSignature(html$.CharacterData, () => dart.global.Object.setPrototypeOf({[S$.$data]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CharacterData))));
  dart.setLibraryUri(html$.CharacterData, I[167]);
  dart.registerExtension("CharacterData", html$.CharacterData);
  html$.Text = class Text extends html$.CharacterData {
    static new(data) {
      if (data == null) dart.nullFailed(I[166], 29815, 23, "data");
      return html$.document.createTextNode(data);
    }
    static ['_#new#tearOff'](data) {
      if (data == null) dart.nullFailed(I[166], 29815, 23, "data");
      return html$.Text.new(data);
    }
    static ['_#_#tearOff']() {
      return html$.Text.__();
    }
    get [S.$assignedSlot]() {
      return this.assignedSlot;
    }
    get [S$.$wholeText]() {
      return this.wholeText;
    }
    [S.$getDestinationInsertionPoints](...args) {
      return this.getDestinationInsertionPoints.apply(this, args);
    }
    [S$.$splitText](...args) {
      return this.splitText.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Text, ["html|Text"]);
  dart.setMethodSignature(html$.Text, () => dart.global.Object.setPrototypeOf({
    [S.$getDestinationInsertionPoints]: T$4.VoidToListOfNode(),
    [S$.$splitText]: T$4.intToText()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Text))));
  dart.setStaticMethodSignature(html$.Text, () => ['new', '__']);
  dart.setGetterSignature(html$.Text, () => dart.global.Object.setPrototypeOf({
    [S.$assignedSlot]: T$4.SlotElementN(),
    [S$.$wholeText]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Text))));
  dart.setLibraryUri(html$.Text, I[167]);
  dart.registerExtension("Text", html$.Text);
  html$.CDataSection = class CDataSection extends html$.Text {
    static ['_#_#tearOff']() {
      return html$.CDataSection.__();
    }
  };
  dart.addRtiResources(html$.CDataSection, ["html|CDataSection"]);
  dart.setStaticMethodSignature(html$.CDataSection, () => ['__']);
  dart.setLibraryUri(html$.CDataSection, I[167]);
  dart.registerExtension("CDATASection", html$.CDataSection);
  html$.CacheStorage = class CacheStorage extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CacheStorage.__();
    }
    [S.$delete](cacheName) {
      if (cacheName == null) dart.nullFailed(I[166], 2018, 24, "cacheName");
      return js_util.promiseToFuture(T$.dynamic(), this.delete(cacheName));
    }
    [S$.$has](cacheName) {
      if (cacheName == null) dart.nullFailed(I[166], 2021, 21, "cacheName");
      return js_util.promiseToFuture(T$.dynamic(), this.has(cacheName));
    }
    [$keys]() {
      return js_util.promiseToFuture(T$.dynamic(), this.keys());
    }
    [S$.$match](request, options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.match(request, options_dict));
    }
    [S.$open](cacheName) {
      if (cacheName == null) dart.nullFailed(I[166], 2035, 22, "cacheName");
      return js_util.promiseToFuture(T$.dynamic(), this.open(cacheName));
    }
  };
  dart.addRtiResources(html$.CacheStorage, ["html|CacheStorage"]);
  dart.setMethodSignature(html$.CacheStorage, () => dart.global.Object.setPrototypeOf({
    [S.$delete]: T$4.StringToFuture(),
    [S$.$has]: T$4.StringToFuture(),
    [$keys]: T$.VoidToFuture(),
    [S$.$match]: T$4.dynamicAndMapNToFuture(),
    [S.$open]: T$4.StringToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CacheStorage))));
  dart.setStaticMethodSignature(html$.CacheStorage, () => ['__']);
  dart.setLibraryUri(html$.CacheStorage, I[167]);
  dart.registerExtension("CacheStorage", html$.CacheStorage);
  html$.CanMakePaymentEvent = class CanMakePaymentEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.CanMakePaymentEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 2049, 38, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 2049, 48, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.CanMakePaymentEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 2049, 38, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 2049, 48, "eventInitDict");
      return html$.CanMakePaymentEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new CanMakePaymentEvent(type, eventInitDict);
    }
    get [S$.$methodData]() {
      return this.methodData;
    }
    get [S$.$modifiers]() {
      return this.modifiers;
    }
    get [S$.$paymentRequestOrigin]() {
      return this.paymentRequestOrigin;
    }
    get [S$.$topLevelOrigin]() {
      return this.topLevelOrigin;
    }
    [S$.$respondWith](...args) {
      return this.respondWith.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CanMakePaymentEvent, ["html|CanMakePaymentEvent"]);
  dart.setMethodSignature(html$.CanMakePaymentEvent, () => dart.global.Object.setPrototypeOf({[S$.$respondWith]: T$1.FutureTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CanMakePaymentEvent))));
  dart.setStaticMethodSignature(html$.CanMakePaymentEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.CanMakePaymentEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$methodData]: T$.ListN(),
    [S$.$modifiers]: T$.ListN(),
    [S$.$paymentRequestOrigin]: T$.StringN(),
    [S$.$topLevelOrigin]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CanMakePaymentEvent))));
  dart.setLibraryUri(html$.CanMakePaymentEvent, I[167]);
  dart.registerExtension("CanMakePaymentEvent", html$.CanMakePaymentEvent);
  html$.MediaStreamTrack = class MediaStreamTrack extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.MediaStreamTrack.__();
    }
    get [S$.$contentHint]() {
      return this.contentHint;
    }
    set [S$.$contentHint](value) {
      this.contentHint = value;
    }
    get [S$.$enabled]() {
      return this.enabled;
    }
    set [S$.$enabled](value) {
      this.enabled = value;
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$.$kind]() {
      return this.kind;
    }
    get [S$.$label]() {
      return this.label;
    }
    get [S$.$muted]() {
      return this.muted;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    [S$.$applyConstraints](constraints = null) {
      let constraints_dict = null;
      if (constraints != null) {
        constraints_dict = html_common.convertDartToNative_Dictionary(constraints);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.applyConstraints(constraints_dict));
    }
    [S$.$clone](...args) {
      return this.clone.apply(this, args);
    }
    [S$.$getCapabilities]() {
      return dart.nullCheck(html_common.convertNativeToDart_Dictionary(this[S$._getCapabilities_1]()));
    }
    [S$._getCapabilities_1](...args) {
      return this.getCapabilities.apply(this, args);
    }
    [S$.$getConstraints]() {
      return dart.nullCheck(html_common.convertNativeToDart_Dictionary(this[S$._getConstraints_1]()));
    }
    [S$._getConstraints_1](...args) {
      return this.getConstraints.apply(this, args);
    }
    [S$.$getSettings]() {
      return dart.nullCheck(html_common.convertNativeToDart_Dictionary(this[S$._getSettings_1]()));
    }
    [S$._getSettings_1](...args) {
      return this.getSettings.apply(this, args);
    }
    [S$.$stop](...args) {
      return this.stop.apply(this, args);
    }
    get [S.$onEnded]() {
      return html$.MediaStreamTrack.endedEvent.forTarget(this);
    }
    get [S$.$onMute]() {
      return html$.MediaStreamTrack.muteEvent.forTarget(this);
    }
    get [S$.$onUnmute]() {
      return html$.MediaStreamTrack.unmuteEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.MediaStreamTrack, ["html|MediaStreamTrack"]);
  dart.setMethodSignature(html$.MediaStreamTrack, () => dart.global.Object.setPrototypeOf({
    [S$.$applyConstraints]: T$4.MapNToFuture(),
    [S$.$clone]: T$4.VoidToMediaStreamTrack(),
    [S$.$getCapabilities]: T$4.VoidToMap(),
    [S$._getCapabilities_1]: T$.VoidTodynamic(),
    [S$.$getConstraints]: T$4.VoidToMap(),
    [S$._getConstraints_1]: T$.VoidTodynamic(),
    [S$.$getSettings]: T$4.VoidToMap(),
    [S$._getSettings_1]: T$.VoidTodynamic(),
    [S$.$stop]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaStreamTrack))));
  dart.setStaticMethodSignature(html$.MediaStreamTrack, () => ['__']);
  dart.setGetterSignature(html$.MediaStreamTrack, () => dart.global.Object.setPrototypeOf({
    [S$.$contentHint]: T$.StringN(),
    [S$.$enabled]: T$.boolN(),
    [S.$id]: T$.StringN(),
    [S$.$kind]: T$.StringN(),
    [S$.$label]: T$.StringN(),
    [S$.$muted]: T$.boolN(),
    [S.$readyState]: T$.StringN(),
    [S.$onEnded]: T$3.StreamOfEvent(),
    [S$.$onMute]: T$3.StreamOfEvent(),
    [S$.$onUnmute]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaStreamTrack))));
  dart.setSetterSignature(html$.MediaStreamTrack, () => dart.global.Object.setPrototypeOf({
    [S$.$contentHint]: T$.StringN(),
    [S$.$enabled]: T$.boolN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MediaStreamTrack))));
  dart.setLibraryUri(html$.MediaStreamTrack, I[167]);
  dart.setStaticFieldSignature(html$.MediaStreamTrack, () => ['endedEvent', 'muteEvent', 'unmuteEvent']);
  dart.defineLazy(html$.MediaStreamTrack, {
    /*html$.MediaStreamTrack.endedEvent*/get endedEvent() {
      return C[302] || CT.C302;
    },
    /*html$.MediaStreamTrack.muteEvent*/get muteEvent() {
      return C[369] || CT.C369;
    },
    /*html$.MediaStreamTrack.unmuteEvent*/get unmuteEvent() {
      return C[370] || CT.C370;
    }
  }, false);
  dart.registerExtension("MediaStreamTrack", html$.MediaStreamTrack);
  html$.CanvasCaptureMediaStreamTrack = class CanvasCaptureMediaStreamTrack extends html$.MediaStreamTrack {
    static ['_#_#tearOff']() {
      return html$.CanvasCaptureMediaStreamTrack.__();
    }
    get [S$.$canvas]() {
      return this.canvas;
    }
    [S$.$requestFrame](...args) {
      return this.requestFrame.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CanvasCaptureMediaStreamTrack, ["html|CanvasCaptureMediaStreamTrack"]);
  dart.setMethodSignature(html$.CanvasCaptureMediaStreamTrack, () => dart.global.Object.setPrototypeOf({[S$.$requestFrame]: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CanvasCaptureMediaStreamTrack))));
  dart.setStaticMethodSignature(html$.CanvasCaptureMediaStreamTrack, () => ['__']);
  dart.setGetterSignature(html$.CanvasCaptureMediaStreamTrack, () => dart.global.Object.setPrototypeOf({[S$.$canvas]: T$4.CanvasElementN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CanvasCaptureMediaStreamTrack))));
  dart.setLibraryUri(html$.CanvasCaptureMediaStreamTrack, I[167]);
  dart.registerExtension("CanvasCaptureMediaStreamTrack", html$.CanvasCaptureMediaStreamTrack);
  html$.CanvasElement = class CanvasElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.CanvasElement.__();
    }
    static new(opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let e = html$.document.createElement("canvas");
      if (width != null) e.width = width;
      if (height != null) e.height = height;
      return e;
    }
    static ['_#new#tearOff'](opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      let height = opts && 'height' in opts ? opts.height : null;
      return html$.CanvasElement.new({width: width, height: height});
    }
    static ['_#created#tearOff']() {
      return new html$.CanvasElement.created();
    }
    get [$height]() {
      return this.height;
    }
    set [$height](value) {
      this.height = value;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
    [S$.$captureStream](...args) {
      return this.captureStream.apply(this, args);
    }
    [S$.$getContext](contextId, attributes = null) {
      if (contextId == null) dart.nullFailed(I[166], 2146, 29, "contextId");
      if (attributes != null) {
        let attributes_1 = html_common.convertDartToNative_Dictionary(attributes);
        return this[S$._getContext_1](contextId, attributes_1);
      }
      return this[S$._getContext_2](contextId);
    }
    [S$._getContext_1](...args) {
      return this.getContext.apply(this, args);
    }
    [S$._getContext_2](...args) {
      return this.getContext.apply(this, args);
    }
    [S$._toDataUrl](...args) {
      return this.toDataURL.apply(this, args);
    }
    [S$.$transferControlToOffscreen](...args) {
      return this.transferControlToOffscreen.apply(this, args);
    }
    get [S$.$onWebGlContextLost]() {
      return html$.CanvasElement.webGlContextLostEvent.forElement(this);
    }
    get [S$.$onWebGlContextRestored]() {
      return html$.CanvasElement.webGlContextRestoredEvent.forElement(this);
    }
    get [S$.$context2D]() {
      return this.getContext("2d");
    }
    [S$.$getContext3d](opts) {
      let alpha = opts && 'alpha' in opts ? opts.alpha : true;
      let depth = opts && 'depth' in opts ? opts.depth : true;
      let stencil = opts && 'stencil' in opts ? opts.stencil : false;
      let antialias = opts && 'antialias' in opts ? opts.antialias : true;
      let premultipliedAlpha = opts && 'premultipliedAlpha' in opts ? opts.premultipliedAlpha : true;
      let preserveDrawingBuffer = opts && 'preserveDrawingBuffer' in opts ? opts.preserveDrawingBuffer : false;
      let options = new (G.IdentityMapOfString$dynamic()).from(["alpha", alpha, "depth", depth, "stencil", stencil, "antialias", antialias, "premultipliedAlpha", premultipliedAlpha, "preserveDrawingBuffer", preserveDrawingBuffer]);
      let context = this[S$.$getContext]("webgl", options);
      if (context == null) {
        context = this[S$.$getContext]("experimental-webgl", options);
      }
      return T$4.RenderingContextN()[_as](context);
    }
    [S$.$toDataUrl](type = "image/png", quality = null) {
      if (type == null) dart.nullFailed(I[166], 2254, 28, "type");
      return this[S$._toDataUrl](type, quality);
    }
    [S$._toBlob](...args) {
      return this.toBlob.apply(this, args);
    }
    [S$.$toBlob](type = null, $arguments = null) {
      let completer = G.CompleterOfBlob().new();
      this[S$._toBlob](dart.fn(value => {
        completer.complete(value);
      }, T$4.BlobNTovoid()), type, $arguments);
      return completer.future;
    }
  };
  (html$.CanvasElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.CanvasElement).created.call(this);
    ;
  }).prototype = html$.CanvasElement.prototype;
  dart.addRtiResources(html$.CanvasElement, ["html|CanvasElement", "html|CanvasImageSource"]);
  dart.setMethodSignature(html$.CanvasElement, () => dart.global.Object.setPrototypeOf({
    [S$.$captureStream]: T$4.numNToMediaStream(),
    [S$.$getContext]: T$4.StringAndMapNToObjectN(),
    [S$._getContext_1]: T$4.dynamicAnddynamicToObjectN(),
    [S$._getContext_2]: T$.dynamicToObjectN(),
    [S$._toDataUrl]: T$4.StringNAnddynamicToString(),
    [S$.$transferControlToOffscreen]: T$4.VoidToOffscreenCanvas(),
    [S$.$getContext3d]: T$4.__ToRenderingContextN(),
    [S$.$toDataUrl]: T$4.StringAndnumNToString(),
    [S$._toBlob]: T$4.FnAndStringNAndObjectNTovoid(),
    [S$.$toBlob]: T$4.StringNAndObjectNToFutureOfBlob()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CanvasElement))));
  dart.setStaticMethodSignature(html$.CanvasElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.CanvasElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.intN(),
    [$width]: T$.intN(),
    [S$.$onWebGlContextLost]: T$4.ElementStreamOfContextEvent(),
    [S$.$onWebGlContextRestored]: T$4.ElementStreamOfContextEvent(),
    [S$.$context2D]: T$4.CanvasRenderingContext2D()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CanvasElement))));
  dart.setSetterSignature(html$.CanvasElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.intN(),
    [$width]: T$.intN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CanvasElement))));
  dart.setLibraryUri(html$.CanvasElement, I[167]);
  dart.setStaticFieldSignature(html$.CanvasElement, () => ['webGlContextLostEvent', 'webGlContextRestoredEvent']);
  dart.defineLazy(html$.CanvasElement, {
    /*html$.CanvasElement.webGlContextLostEvent*/get webGlContextLostEvent() {
      return C[371] || CT.C371;
    },
    /*html$.CanvasElement.webGlContextRestoredEvent*/get webGlContextRestoredEvent() {
      return C[372] || CT.C372;
    }
  }, false);
  dart.registerExtension("HTMLCanvasElement", html$.CanvasElement);
  html$.CanvasGradient = class CanvasGradient extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CanvasGradient.__();
    }
    [S$.$addColorStop](...args) {
      return this.addColorStop.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CanvasGradient, ["html|CanvasGradient"]);
  dart.setMethodSignature(html$.CanvasGradient, () => dart.global.Object.setPrototypeOf({[S$.$addColorStop]: T$4.numAndStringTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CanvasGradient))));
  dart.setStaticMethodSignature(html$.CanvasGradient, () => ['__']);
  dart.setLibraryUri(html$.CanvasGradient, I[167]);
  dart.registerExtension("CanvasGradient", html$.CanvasGradient);
  html$.CanvasPattern = class CanvasPattern extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CanvasPattern.__();
    }
    [S$.$setTransform](...args) {
      return this.setTransform.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CanvasPattern, ["html|CanvasPattern"]);
  dart.setMethodSignature(html$.CanvasPattern, () => dart.global.Object.setPrototypeOf({[S$.$setTransform]: T$4.MatrixTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CanvasPattern))));
  dart.setStaticMethodSignature(html$.CanvasPattern, () => ['__']);
  dart.setLibraryUri(html$.CanvasPattern, I[167]);
  dart.registerExtension("CanvasPattern", html$.CanvasPattern);
  html$.CanvasRenderingContext = class CanvasRenderingContext extends core.Object {};
  (html$.CanvasRenderingContext.new = function() {
    ;
  }).prototype = html$.CanvasRenderingContext.prototype;
  dart.addRtiResources(html$.CanvasRenderingContext, ["html|CanvasRenderingContext"]);
  dart.setLibraryUri(html$.CanvasRenderingContext, I[167]);
  html$.CanvasRenderingContext2D = class CanvasRenderingContext2D extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CanvasRenderingContext2D.__();
    }
    get [S$.$canvas]() {
      return this.canvas;
    }
    get [S$.$currentTransform]() {
      return this.currentTransform;
    }
    set [S$.$currentTransform](value) {
      this.currentTransform = value;
    }
    get [S.$direction]() {
      return this.direction;
    }
    set [S.$direction](value) {
      this.direction = value;
    }
    get [S$.$fillStyle]() {
      return this.fillStyle;
    }
    set [S$.$fillStyle](value) {
      this.fillStyle = value;
    }
    get [S$.$filter]() {
      return this.filter;
    }
    set [S$.$filter](value) {
      this.filter = value;
    }
    get [S$.$font]() {
      return this.font;
    }
    set [S$.$font](value) {
      this.font = value;
    }
    get [S$.$globalAlpha]() {
      return this.globalAlpha;
    }
    set [S$.$globalAlpha](value) {
      this.globalAlpha = value;
    }
    get [S$.$globalCompositeOperation]() {
      return this.globalCompositeOperation;
    }
    set [S$.$globalCompositeOperation](value) {
      this.globalCompositeOperation = value;
    }
    get [S$.$imageSmoothingEnabled]() {
      return this.imageSmoothingEnabled;
    }
    set [S$.$imageSmoothingEnabled](value) {
      this.imageSmoothingEnabled = value;
    }
    get [S$.$imageSmoothingQuality]() {
      return this.imageSmoothingQuality;
    }
    set [S$.$imageSmoothingQuality](value) {
      this.imageSmoothingQuality = value;
    }
    get [S$.$lineCap]() {
      return this.lineCap;
    }
    set [S$.$lineCap](value) {
      this.lineCap = value;
    }
    get [S$.$lineJoin]() {
      return this.lineJoin;
    }
    set [S$.$lineJoin](value) {
      this.lineJoin = value;
    }
    get [S$.$lineWidth]() {
      return this.lineWidth;
    }
    set [S$.$lineWidth](value) {
      this.lineWidth = value;
    }
    get [S$.$miterLimit]() {
      return this.miterLimit;
    }
    set [S$.$miterLimit](value) {
      this.miterLimit = value;
    }
    get [S$.$shadowBlur]() {
      return this.shadowBlur;
    }
    set [S$.$shadowBlur](value) {
      this.shadowBlur = value;
    }
    get [S$.$shadowColor]() {
      return this.shadowColor;
    }
    set [S$.$shadowColor](value) {
      this.shadowColor = value;
    }
    get [S$.$shadowOffsetX]() {
      return this.shadowOffsetX;
    }
    set [S$.$shadowOffsetX](value) {
      this.shadowOffsetX = value;
    }
    get [S$.$shadowOffsetY]() {
      return this.shadowOffsetY;
    }
    set [S$.$shadowOffsetY](value) {
      this.shadowOffsetY = value;
    }
    get [S$.$strokeStyle]() {
      return this.strokeStyle;
    }
    set [S$.$strokeStyle](value) {
      this.strokeStyle = value;
    }
    get [S$.$textAlign]() {
      return this.textAlign;
    }
    set [S$.$textAlign](value) {
      this.textAlign = value;
    }
    get [S$.$textBaseline]() {
      return this.textBaseline;
    }
    set [S$.$textBaseline](value) {
      this.textBaseline = value;
    }
    [S$.$addHitRegion](options = null) {
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        this[S$._addHitRegion_1](options_1);
        return;
      }
      this[S$._addHitRegion_2]();
      return;
    }
    [S$._addHitRegion_1](...args) {
      return this.addHitRegion.apply(this, args);
    }
    [S$._addHitRegion_2](...args) {
      return this.addHitRegion.apply(this, args);
    }
    [S$.$beginPath](...args) {
      return this.beginPath.apply(this, args);
    }
    [S$.$clearHitRegions](...args) {
      return this.clearHitRegions.apply(this, args);
    }
    [S$.$clearRect](...args) {
      return this.clearRect.apply(this, args);
    }
    [S$.$clip](...args) {
      return this.clip.apply(this, args);
    }
    [S$.$createImageData](data_OR_imagedata_OR_sw, sh_OR_sw = null, imageDataColorSettings_OR_sh = null, imageDataColorSettings = null) {
      if (T$4.ImageData()[_is](data_OR_imagedata_OR_sw) && sh_OR_sw == null && imageDataColorSettings_OR_sh == null && imageDataColorSettings == null) {
        let imagedata_1 = html_common.convertDartToNative_ImageData(data_OR_imagedata_OR_sw);
        return html_common.convertNativeToDart_ImageData(this[S$._createImageData_1](imagedata_1));
      }
      if (sh_OR_sw != null && T$.int()[_is](data_OR_imagedata_OR_sw) && imageDataColorSettings_OR_sh == null && imageDataColorSettings == null) {
        return html_common.convertNativeToDart_ImageData(this[S$._createImageData_2](data_OR_imagedata_OR_sw, sh_OR_sw));
      }
      if (T$.Map()[_is](imageDataColorSettings_OR_sh) && sh_OR_sw != null && T$.int()[_is](data_OR_imagedata_OR_sw) && imageDataColorSettings == null) {
        let imageDataColorSettings_1 = html_common.convertDartToNative_Dictionary(imageDataColorSettings_OR_sh);
        return html_common.convertNativeToDart_ImageData(this[S$._createImageData_3](data_OR_imagedata_OR_sw, sh_OR_sw, imageDataColorSettings_1));
      }
      if (T$.int()[_is](imageDataColorSettings_OR_sh) && sh_OR_sw != null && data_OR_imagedata_OR_sw != null && imageDataColorSettings == null) {
        return html_common.convertNativeToDart_ImageData(this[S$._createImageData_4](data_OR_imagedata_OR_sw, sh_OR_sw, imageDataColorSettings_OR_sh));
      }
      if (imageDataColorSettings != null && T$.int()[_is](imageDataColorSettings_OR_sh) && sh_OR_sw != null && data_OR_imagedata_OR_sw != null) {
        let imageDataColorSettings_1 = html_common.convertDartToNative_Dictionary(imageDataColorSettings);
        return html_common.convertNativeToDart_ImageData(this[S$._createImageData_5](data_OR_imagedata_OR_sw, sh_OR_sw, imageDataColorSettings_OR_sh, imageDataColorSettings_1));
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$._createImageData_1](...args) {
      return this.createImageData.apply(this, args);
    }
    [S$._createImageData_2](...args) {
      return this.createImageData.apply(this, args);
    }
    [S$._createImageData_3](...args) {
      return this.createImageData.apply(this, args);
    }
    [S$._createImageData_4](...args) {
      return this.createImageData.apply(this, args);
    }
    [S$._createImageData_5](...args) {
      return this.createImageData.apply(this, args);
    }
    [S$.$createLinearGradient](...args) {
      return this.createLinearGradient.apply(this, args);
    }
    [S$.$createPattern](...args) {
      return this.createPattern.apply(this, args);
    }
    [S$.$createRadialGradient](...args) {
      return this.createRadialGradient.apply(this, args);
    }
    [S$.$drawFocusIfNeeded](...args) {
      return this.drawFocusIfNeeded.apply(this, args);
    }
    [S$.$fill](...args) {
      return this.fill.apply(this, args);
    }
    [S$.$fillRect](...args) {
      return this.fillRect.apply(this, args);
    }
    [S$.$getContextAttributes]() {
      return dart.nullCheck(html_common.convertNativeToDart_Dictionary(this[S$._getContextAttributes_1]()));
    }
    [S$._getContextAttributes_1](...args) {
      return this.getContextAttributes.apply(this, args);
    }
    [S$.$getImageData](sx, sy, sw, sh) {
      if (sx == null) dart.nullFailed(I[166], 2587, 30, "sx");
      if (sy == null) dart.nullFailed(I[166], 2587, 38, "sy");
      if (sw == null) dart.nullFailed(I[166], 2587, 46, "sw");
      if (sh == null) dart.nullFailed(I[166], 2587, 54, "sh");
      return html_common.convertNativeToDart_ImageData(this[S$._getImageData_1](sx, sy, sw, sh));
    }
    [S$._getImageData_1](...args) {
      return this.getImageData.apply(this, args);
    }
    [S$._getLineDash](...args) {
      return this.getLineDash.apply(this, args);
    }
    [S$.$isContextLost](...args) {
      return this.isContextLost.apply(this, args);
    }
    [S$.$isPointInPath](...args) {
      return this.isPointInPath.apply(this, args);
    }
    [S$.$isPointInStroke](...args) {
      return this.isPointInStroke.apply(this, args);
    }
    [S$.$measureText](...args) {
      return this.measureText.apply(this, args);
    }
    [S$.$putImageData](imagedata, dx, dy, dirtyX = null, dirtyY = null, dirtyWidth = null, dirtyHeight = null) {
      if (imagedata == null) dart.nullFailed(I[166], 2607, 31, "imagedata");
      if (dx == null) dart.nullFailed(I[166], 2607, 46, "dx");
      if (dy == null) dart.nullFailed(I[166], 2607, 54, "dy");
      if (dirtyX == null && dirtyY == null && dirtyWidth == null && dirtyHeight == null) {
        let imagedata_1 = html_common.convertDartToNative_ImageData(imagedata);
        this[S$._putImageData_1](imagedata_1, dx, dy);
        return;
      }
      if (dirtyHeight != null && dirtyWidth != null && dirtyY != null && dirtyX != null) {
        let imagedata_1 = html_common.convertDartToNative_ImageData(imagedata);
        this[S$._putImageData_2](imagedata_1, dx, dy, dirtyX, dirtyY, dirtyWidth, dirtyHeight);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$._putImageData_1](...args) {
      return this.putImageData.apply(this, args);
    }
    [S$._putImageData_2](...args) {
      return this.putImageData.apply(this, args);
    }
    [S$.$removeHitRegion](...args) {
      return this.removeHitRegion.apply(this, args);
    }
    [S$.$resetTransform](...args) {
      return this.resetTransform.apply(this, args);
    }
    [S$.$restore](...args) {
      return this.restore.apply(this, args);
    }
    [S$.$rotate](...args) {
      return this.rotate.apply(this, args);
    }
    [S$.$save](...args) {
      return this.save.apply(this, args);
    }
    [S$.$scale](...args) {
      return this.scale.apply(this, args);
    }
    [S$.$scrollPathIntoView](...args) {
      return this.scrollPathIntoView.apply(this, args);
    }
    [S$.$setTransform](...args) {
      return this.setTransform.apply(this, args);
    }
    [S$.$stroke](...args) {
      return this.stroke.apply(this, args);
    }
    [S$.$strokeRect](...args) {
      return this.strokeRect.apply(this, args);
    }
    [S$.$strokeText](...args) {
      return this.strokeText.apply(this, args);
    }
    [S$.$transform](...args) {
      return this.transform.apply(this, args);
    }
    [S.$translate](...args) {
      return this.translate.apply(this, args);
    }
    [S$._arc](...args) {
      return this.arc.apply(this, args);
    }
    [S$.$arcTo](...args) {
      return this.arcTo.apply(this, args);
    }
    [S$.$bezierCurveTo](...args) {
      return this.bezierCurveTo.apply(this, args);
    }
    [S$.$closePath](...args) {
      return this.closePath.apply(this, args);
    }
    [S$.$ellipse](...args) {
      return this.ellipse.apply(this, args);
    }
    [S$.$lineTo](...args) {
      return this.lineTo.apply(this, args);
    }
    [S$.$moveTo](...args) {
      return this.moveTo.apply(this, args);
    }
    [S$.$quadraticCurveTo](...args) {
      return this.quadraticCurveTo.apply(this, args);
    }
    [S$.$rect](...args) {
      return this.rect.apply(this, args);
    }
    [S$.$createImageDataFromImageData](imagedata) {
      if (imagedata == null) dart.nullFailed(I[166], 2685, 52, "imagedata");
      return this.createImageData(imagedata);
    }
    [S$.$setFillColorRgb](r, g, b, a = 1) {
      if (r == null) dart.nullFailed(I[166], 2692, 28, "r");
      if (g == null) dart.nullFailed(I[166], 2692, 35, "g");
      if (b == null) dart.nullFailed(I[166], 2692, 42, "b");
      if (a == null) dart.nullFailed(I[166], 2692, 50, "a");
      this.fillStyle = "rgba(" + dart.str(r) + ", " + dart.str(g) + ", " + dart.str(b) + ", " + dart.str(a) + ")";
    }
    [S$.$setFillColorHsl](h, s, l, a = 1) {
      if (h == null) dart.nullFailed(I[166], 2702, 28, "h");
      if (s == null) dart.nullFailed(I[166], 2702, 35, "s");
      if (l == null) dart.nullFailed(I[166], 2702, 42, "l");
      if (a == null) dart.nullFailed(I[166], 2702, 50, "a");
      this.fillStyle = "hsla(" + dart.str(h) + ", " + dart.str(s) + "%, " + dart.str(l) + "%, " + dart.str(a) + ")";
    }
    [S$.$setStrokeColorRgb](r, g, b, a = 1) {
      if (r == null) dart.nullFailed(I[166], 2710, 30, "r");
      if (g == null) dart.nullFailed(I[166], 2710, 37, "g");
      if (b == null) dart.nullFailed(I[166], 2710, 44, "b");
      if (a == null) dart.nullFailed(I[166], 2710, 52, "a");
      this.strokeStyle = "rgba(" + dart.str(r) + ", " + dart.str(g) + ", " + dart.str(b) + ", " + dart.str(a) + ")";
    }
    [S$.$setStrokeColorHsl](h, s, l, a = 1) {
      if (h == null) dart.nullFailed(I[166], 2720, 30, "h");
      if (s == null) dart.nullFailed(I[166], 2720, 37, "s");
      if (l == null) dart.nullFailed(I[166], 2720, 44, "l");
      if (a == null) dart.nullFailed(I[166], 2720, 52, "a");
      this.strokeStyle = "hsla(" + dart.str(h) + ", " + dart.str(s) + "%, " + dart.str(l) + "%, " + dart.str(a) + ")";
    }
    [S$.$arc](x, y, radius, startAngle, endAngle, anticlockwise = false) {
      if (x == null) dart.nullFailed(I[166], 2724, 16, "x");
      if (y == null) dart.nullFailed(I[166], 2724, 23, "y");
      if (radius == null) dart.nullFailed(I[166], 2724, 30, "radius");
      if (startAngle == null) dart.nullFailed(I[166], 2724, 42, "startAngle");
      if (endAngle == null) dart.nullFailed(I[166], 2724, 58, "endAngle");
      if (anticlockwise == null) dart.nullFailed(I[166], 2725, 13, "anticlockwise");
      this.arc(x, y, radius, startAngle, endAngle, anticlockwise);
    }
    [S$.$createPatternFromImage](image, repetitionType) {
      if (image == null) dart.nullFailed(I[166], 2732, 24, "image");
      if (repetitionType == null) dart.nullFailed(I[166], 2732, 38, "repetitionType");
      return this.createPattern(image, repetitionType);
    }
    [S$.$drawImageToRect](source, destRect, opts) {
      if (source == null) dart.nullFailed(I[166], 2775, 42, "source");
      if (destRect == null) dart.nullFailed(I[166], 2775, 60, "destRect");
      let sourceRect = opts && 'sourceRect' in opts ? opts.sourceRect : null;
      if (sourceRect == null) {
        this[S$.$drawImageScaled](source, destRect[$left], destRect[$top], destRect[$width], destRect[$height]);
      } else {
        this[S$.$drawImageScaledFromSource](source, sourceRect[$left], sourceRect[$top], sourceRect[$width], sourceRect[$height], destRect[$left], destRect[$top], destRect[$width], destRect[$height]);
      }
    }
    [S$.$drawImage](...args) {
      return this.drawImage.apply(this, args);
    }
    [S$.$drawImageScaled](...args) {
      return this.drawImage.apply(this, args);
    }
    [S$.$drawImageScaledFromSource](...args) {
      return this.drawImage.apply(this, args);
    }
    get [S$.$lineDashOffset]() {
      return this.lineDashOffset || this.webkitLineDashOffset;
    }
    set [S$.$lineDashOffset](value) {
      if (value == null) dart.nullFailed(I[166], 2912, 26, "value");
      typeof this.lineDashOffset != "undefined" ? this.lineDashOffset = value : this.webkitLineDashOffset = value;
    }
    [S$.$getLineDash]() {
      if (!!this.getLineDash) {
        return this.getLineDash();
      } else if (!!this.webkitLineDash) {
        return this.webkitLineDash;
      }
      return G.JSArrayOfnum().of([]);
    }
    [S$.$setLineDash](dash) {
      if (dash == null) dart.nullFailed(I[166], 2943, 30, "dash");
      if (!!this.setLineDash) {
        this.setLineDash(dash);
      } else if (!!this.webkitLineDash) {
        this.webkitLineDash = dash;
      }
    }
    [S$.$fillText](text, x, y, maxWidth = null) {
      if (text == null) dart.nullFailed(I[166], 2967, 24, "text");
      if (x == null) dart.nullFailed(I[166], 2967, 34, "x");
      if (y == null) dart.nullFailed(I[166], 2967, 41, "y");
      if (maxWidth != null) {
        this.fillText(text, x, y, maxWidth);
      } else {
        this.fillText(text, x, y);
      }
    }
    get [S$.$backingStorePixelRatio]() {
      return 1.0;
    }
  };
  dart.addRtiResources(html$.CanvasRenderingContext2D, ["html|CanvasRenderingContext2D", "html|CanvasRenderingContext"]);
  dart.setMethodSignature(html$.CanvasRenderingContext2D, () => dart.global.Object.setPrototypeOf({
    [S$.$addHitRegion]: T$4.MapNTovoid$1(),
    [S$._addHitRegion_1]: T$.dynamicTovoid(),
    [S$._addHitRegion_2]: T$.VoidTovoid(),
    [S$.$beginPath]: T$.VoidTovoid(),
    [S$.$clearHitRegions]: T$.VoidTovoid(),
    [S$.$clearRect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$clip]: T$4.dynamicAndStringNTovoid(),
    [S$.$createImageData]: T$4.dynamicAndintNAnddynamic__ToImageData(),
    [S$._createImageData_1]: T$.dynamicTodynamic(),
    [S$._createImageData_2]: T$4.intAnddynamicTodynamic(),
    [S$._createImageData_3]: T$4.intAnddynamicAnddynamicTodynamic(),
    [S$._createImageData_4]: T$4.dynamicAnddynamicAndintNTodynamic(),
    [S$._createImageData_5]: T$4.dynamicAnddynamicAndintN__Todynamic(),
    [S$.$createLinearGradient]: T$4.numAndnumAndnum__ToCanvasGradient(),
    [S$.$createPattern]: T$4.ObjectAndStringToCanvasPatternN(),
    [S$.$createRadialGradient]: T$4.numAndnumAndnum__ToCanvasGradient$1(),
    [S$.$drawFocusIfNeeded]: T$4.dynamicAndElementNTovoid(),
    [S$.$fill]: T$4.dynamicAndStringNTovoid(),
    [S$.$fillRect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$getContextAttributes]: T$4.VoidToMap(),
    [S$._getContextAttributes_1]: T$.VoidTodynamic(),
    [S$.$getImageData]: T$4.intAndintAndint__ToImageData(),
    [S$._getImageData_1]: T$4.dynamicAnddynamicAnddynamic__Todynamic(),
    [S$._getLineDash]: T$4.VoidToListOfnum(),
    [S$.$isContextLost]: T$.VoidTobool(),
    [S$.$isPointInPath]: T$4.dynamicAndnumAnddynamic__Tobool(),
    [S$.$isPointInStroke]: T$4.dynamicAndnumAndnumNTobool(),
    [S$.$measureText]: T$4.StringToTextMetrics(),
    [S$.$putImageData]: T$4.ImageDataAndintAndint__Tovoid(),
    [S$._putImageData_1]: T$0.dynamicAnddynamicAnddynamicTovoid(),
    [S$._putImageData_2]: T$4.dynamicAnddynamicAnddynamic__Tovoid(),
    [S$.$removeHitRegion]: T$.StringTovoid(),
    [S$.$resetTransform]: T$.VoidTovoid(),
    [S$.$restore]: T$.VoidTovoid(),
    [S$.$rotate]: T$2.numTovoid(),
    [S$.$save]: T$.VoidTovoid(),
    [S$.$scale]: T$4.numAndnumTovoid(),
    [S$.$scrollPathIntoView]: T$4.Path2DNTovoid(),
    [S$.$setTransform]: T$4.numAndnumAndnum__Tovoid$1(),
    [S$.$stroke]: T$4.Path2DNTovoid(),
    [S$.$strokeRect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$strokeText]: T$4.StringAndnumAndnum__Tovoid(),
    [S$.$transform]: T$4.numAndnumAndnum__Tovoid$1(),
    [S.$translate]: T$4.numAndnumTovoid(),
    [S$._arc]: T$4.numAndnumAndnum__Tovoid$2(),
    [S$.$arcTo]: T$4.numAndnumAndnum__Tovoid$3(),
    [S$.$bezierCurveTo]: T$4.numAndnumAndnum__Tovoid$1(),
    [S$.$closePath]: T$.VoidTovoid(),
    [S$.$ellipse]: T$4.numAndnumAndnum__Tovoid$4(),
    [S$.$lineTo]: T$4.numAndnumTovoid(),
    [S$.$moveTo]: T$4.numAndnumTovoid(),
    [S$.$quadraticCurveTo]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$rect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$createImageDataFromImageData]: T$4.ImageDataToImageData(),
    [S$.$setFillColorRgb]: T$4.intAndintAndint__Tovoid(),
    [S$.$setFillColorHsl]: T$4.intAndnumAndnum__Tovoid(),
    [S$.$setStrokeColorRgb]: T$4.intAndintAndint__Tovoid(),
    [S$.$setStrokeColorHsl]: T$4.intAndnumAndnum__Tovoid(),
    [S$.$arc]: T$4.numAndnumAndnum__Tovoid$5(),
    [S$.$createPatternFromImage]: T$4.ImageElementAndStringToCanvasPattern(),
    [S$.$drawImageToRect]: T$4.CanvasImageSourceAndRectangleOfnum__Tovoid(),
    [S$.$drawImage]: T$4.CanvasImageSourceAndnumAndnumTovoid(),
    [S$.$drawImageScaled]: T$4.CanvasImageSourceAndnumAndnum__Tovoid(),
    [S$.$drawImageScaledFromSource]: T$4.CanvasImageSourceAndnumAndnum__Tovoid$1(),
    [S$.$getLineDash]: T$4.VoidToListOfnum(),
    [S$.$setLineDash]: T$4.ListOfnumTovoid(),
    [S$.$fillText]: T$4.StringAndnumAndnum__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CanvasRenderingContext2D))));
  dart.setStaticMethodSignature(html$.CanvasRenderingContext2D, () => ['__']);
  dart.setGetterSignature(html$.CanvasRenderingContext2D, () => dart.global.Object.setPrototypeOf({
    [S$.$canvas]: T$4.CanvasElement(),
    [S$.$currentTransform]: T$4.MatrixN(),
    [S.$direction]: T$.StringN(),
    [S$.$fillStyle]: T$.ObjectN(),
    [S$.$filter]: T$.StringN(),
    [S$.$font]: T$.String(),
    [S$.$globalAlpha]: T$.num(),
    [S$.$globalCompositeOperation]: T$.String(),
    [S$.$imageSmoothingEnabled]: T$.boolN(),
    [S$.$imageSmoothingQuality]: T$.StringN(),
    [S$.$lineCap]: T$.String(),
    [S$.$lineJoin]: T$.String(),
    [S$.$lineWidth]: T$.num(),
    [S$.$miterLimit]: T$.num(),
    [S$.$shadowBlur]: T$.num(),
    [S$.$shadowColor]: T$.String(),
    [S$.$shadowOffsetX]: T$.num(),
    [S$.$shadowOffsetY]: T$.num(),
    [S$.$strokeStyle]: T$.ObjectN(),
    [S$.$textAlign]: T$.String(),
    [S$.$textBaseline]: T$.String(),
    [S$.$lineDashOffset]: T$.num(),
    [S$.$backingStorePixelRatio]: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CanvasRenderingContext2D))));
  dart.setSetterSignature(html$.CanvasRenderingContext2D, () => dart.global.Object.setPrototypeOf({
    [S$.$currentTransform]: T$4.MatrixN(),
    [S.$direction]: T$.StringN(),
    [S$.$fillStyle]: T$.ObjectN(),
    [S$.$filter]: T$.StringN(),
    [S$.$font]: T$.String(),
    [S$.$globalAlpha]: T$.num(),
    [S$.$globalCompositeOperation]: T$.String(),
    [S$.$imageSmoothingEnabled]: T$.boolN(),
    [S$.$imageSmoothingQuality]: T$.StringN(),
    [S$.$lineCap]: T$.String(),
    [S$.$lineJoin]: T$.String(),
    [S$.$lineWidth]: T$.num(),
    [S$.$miterLimit]: T$.num(),
    [S$.$shadowBlur]: T$.num(),
    [S$.$shadowColor]: T$.String(),
    [S$.$shadowOffsetX]: T$.num(),
    [S$.$shadowOffsetY]: T$.num(),
    [S$.$strokeStyle]: T$.ObjectN(),
    [S$.$textAlign]: T$.String(),
    [S$.$textBaseline]: T$.String(),
    [S$.$lineDashOffset]: T$.num()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CanvasRenderingContext2D))));
  dart.setLibraryUri(html$.CanvasRenderingContext2D, I[167]);
  dart.registerExtension("CanvasRenderingContext2D", html$.CanvasRenderingContext2D);
  html$.ChildNode = class ChildNode extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ChildNode.__();
    }
  };
  dart.addRtiResources(html$.ChildNode, ["html|ChildNode"]);
  dart.setStaticMethodSignature(html$.ChildNode, () => ['__']);
  dart.setLibraryUri(html$.ChildNode, I[167]);
  html$.Client = class Client extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Client.__();
    }
    get [S$.$frameType]() {
      return this.frameType;
    }
    get [S.$id]() {
      return this.id;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S$.$url]() {
      return this.url;
    }
    [S$.$postMessage](...args) {
      return this.postMessage.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Client, ["html|Client"]);
  dart.setMethodSignature(html$.Client, () => dart.global.Object.setPrototypeOf({[S$.$postMessage]: T$4.ObjectAndListNOfObjectTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Client))));
  dart.setStaticMethodSignature(html$.Client, () => ['__']);
  dart.setGetterSignature(html$.Client, () => dart.global.Object.setPrototypeOf({
    [S$.$frameType]: T$.StringN(),
    [S.$id]: T$.StringN(),
    [S.$type]: T$.StringN(),
    [S$.$url]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Client))));
  dart.setLibraryUri(html$.Client, I[167]);
  dart.registerExtension("Client", html$.Client);
  html$.Clients = class Clients extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Clients.__();
    }
    [S$.$claim]() {
      return js_util.promiseToFuture(T$.dynamic(), this.claim());
    }
    [S.$get](id) {
      if (id == null) dart.nullFailed(I[166], 3069, 21, "id");
      return js_util.promiseToFuture(T$.dynamic(), this.get(id));
    }
    [S$.$matchAll](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.List(), this.matchAll(options_dict));
    }
    [S$.$openWindow](url) {
      if (url == null) dart.nullFailed(I[166], 3080, 42, "url");
      return js_util.promiseToFuture(T$4.WindowClient(), this.openWindow(url));
    }
  };
  dart.addRtiResources(html$.Clients, ["html|Clients"]);
  dart.setMethodSignature(html$.Clients, () => dart.global.Object.setPrototypeOf({
    [S$.$claim]: T$.VoidToFuture(),
    [S.$get]: T$4.StringToFuture(),
    [S$.$matchAll]: T$4.MapNToFutureOfList(),
    [S$.$openWindow]: T$4.StringToFutureOfWindowClient()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Clients))));
  dart.setStaticMethodSignature(html$.Clients, () => ['__']);
  dart.setLibraryUri(html$.Clients, I[167]);
  dart.registerExtension("Clients", html$.Clients);
  html$.ClipboardEvent = class ClipboardEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.ClipboardEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 3094, 33, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.ClipboardEvent._create_1(type, eventInitDict_1);
      }
      return html$.ClipboardEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 3094, 33, "type");
      return html$.ClipboardEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new ClipboardEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new ClipboardEvent(type);
    }
    get [S$.$clipboardData]() {
      return this.clipboardData;
    }
  };
  dart.addRtiResources(html$.ClipboardEvent, ["html|ClipboardEvent"]);
  dart.setStaticMethodSignature(html$.ClipboardEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.ClipboardEvent, () => dart.global.Object.setPrototypeOf({[S$.$clipboardData]: T$4.DataTransferN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ClipboardEvent))));
  dart.setLibraryUri(html$.ClipboardEvent, I[167]);
  dart.registerExtension("ClipboardEvent", html$.ClipboardEvent);
  html$.CloseEvent = class CloseEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.CloseEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 3119, 29, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.CloseEvent._create_1(type, eventInitDict_1);
      }
      return html$.CloseEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 3119, 29, "type");
      return html$.CloseEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new CloseEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new CloseEvent(type);
    }
    get [S$.$code]() {
      return this.code;
    }
    get [S$.$reason]() {
      return this.reason;
    }
    get [S$.$wasClean]() {
      return this.wasClean;
    }
  };
  dart.addRtiResources(html$.CloseEvent, ["html|CloseEvent"]);
  dart.setStaticMethodSignature(html$.CloseEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.CloseEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$code]: T$.intN(),
    [S$.$reason]: T$.StringN(),
    [S$.$wasClean]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CloseEvent))));
  dart.setLibraryUri(html$.CloseEvent, I[167]);
  dart.registerExtension("CloseEvent", html$.CloseEvent);
  html$.Comment = class Comment extends html$.CharacterData {
    static new(data = null) {
      return html$.document.createComment(data == null ? "" : data);
    }
    static ['_#new#tearOff'](data = null) {
      return html$.Comment.new(data);
    }
    static ['_#_#tearOff']() {
      return html$.Comment.__();
    }
  };
  dart.addRtiResources(html$.Comment, ["html|Comment"]);
  dart.setStaticMethodSignature(html$.Comment, () => ['new', '__']);
  dart.setLibraryUri(html$.Comment, I[167]);
  dart.registerExtension("Comment", html$.Comment);
  html$.UIEvent = class UIEvent$ extends html$.Event {
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 30826, 26, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let detail = opts && 'detail' in opts ? opts.detail : 0;
      if (detail == null) dart.nullFailed(I[166], 30828, 11, "detail");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 30829, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 30830, 12, "cancelable");
      if (view == null) {
        view = html$.window;
      }
      let e = T$4.UIEvent()[_as](html$.document[S._createEvent]("UIEvent"));
      e[S$._initUIEvent](type, canBubble, cancelable, view, detail);
      return e;
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 30826, 26, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let detail = opts && 'detail' in opts ? opts.detail : 0;
      if (detail == null) dart.nullFailed(I[166], 30828, 11, "detail");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 30829, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 30830, 12, "cancelable");
      return html$.UIEvent.new(type, {view: view, detail: detail, canBubble: canBubble, cancelable: cancelable});
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 30839, 28, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.UIEvent._create_1(type, eventInitDict_1);
      }
      return html$.UIEvent._create_2(type);
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 30839, 28, "type");
      return html$.UIEvent.__(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new UIEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new UIEvent(type);
    }
    get [S$.$detail]() {
      return this.detail;
    }
    get [S$.$sourceCapabilities]() {
      return this.sourceCapabilities;
    }
    get [S$.$view]() {
      return html$._convertNativeToDart_Window(this[S$._get_view]);
    }
    get [S$._get_view]() {
      return this.view;
    }
    get [S$._which]() {
      return this.which;
    }
    [S$._initUIEvent](...args) {
      return this.initUIEvent.apply(this, args);
    }
  };
  dart.addRtiResources(html$.UIEvent, ["html|UIEvent"]);
  dart.setMethodSignature(html$.UIEvent, () => dart.global.Object.setPrototypeOf({[S$._initUIEvent]: T$4.StringAndboolAndbool__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.UIEvent))));
  dart.setStaticMethodSignature(html$.UIEvent, () => ['new', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.UIEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$detail]: T$.intN(),
    [S$.$sourceCapabilities]: T$4.InputDeviceCapabilitiesN(),
    [S$.$view]: T$4.WindowBaseN(),
    [S$._get_view]: T$.dynamic(),
    [S$._which]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.UIEvent))));
  dart.setLibraryUri(html$.UIEvent, I[167]);
  dart.registerExtension("UIEvent", html$.UIEvent);
  html$.CompositionEvent = class CompositionEvent$ extends html$.UIEvent {
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 3160, 35, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : false;
      if (canBubble == null) dart.nullFailed(I[166], 3161, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : false;
      if (cancelable == null) dart.nullFailed(I[166], 3162, 12, "cancelable");
      let view = opts && 'view' in opts ? opts.view : null;
      let data = opts && 'data' in opts ? opts.data : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      if (view == null) {
        view = html$.window;
      }
      let e = T$4.CompositionEvent()[_as](html$.document[S._createEvent]("CompositionEvent"));
      if (dart.test(html_common.Device.isFirefox)) {
        e.initCompositionEvent(type, canBubble, cancelable, view, data, locale);
      } else {
        e[S$._initCompositionEvent](type, canBubble, cancelable, view, data);
      }
      return e;
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 3160, 35, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : false;
      if (canBubble == null) dart.nullFailed(I[166], 3161, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : false;
      if (cancelable == null) dart.nullFailed(I[166], 3162, 12, "cancelable");
      let view = opts && 'view' in opts ? opts.view : null;
      let data = opts && 'data' in opts ? opts.data : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      return html$.CompositionEvent.new(type, {canBubble: canBubble, cancelable: cancelable, view: view, data: data, locale: locale});
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 3183, 37, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.CompositionEvent._create_1(type, eventInitDict_1);
      }
      return html$.CompositionEvent._create_2(type);
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 3183, 37, "type");
      return html$.CompositionEvent.__(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new CompositionEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new CompositionEvent(type);
    }
    get [S$.$data]() {
      return this.data;
    }
    [S$._initCompositionEvent](...args) {
      return this.initCompositionEvent.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CompositionEvent, ["html|CompositionEvent"]);
  dart.setMethodSignature(html$.CompositionEvent, () => dart.global.Object.setPrototypeOf({[S$._initCompositionEvent]: T$4.StringNAndboolNAndboolN__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CompositionEvent))));
  dart.setStaticMethodSignature(html$.CompositionEvent, () => ['new', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.CompositionEvent, () => dart.global.Object.setPrototypeOf({[S$.$data]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CompositionEvent))));
  dart.setLibraryUri(html$.CompositionEvent, I[167]);
  dart.registerExtension("CompositionEvent", html$.CompositionEvent);
  html$.ContentElement = class ContentElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ContentElement.__();
    }
    static new() {
      return T$4.ContentElement()[_as](html$.document[S.$createElement]("content"));
    }
    static ['_#new#tearOff']() {
      return html$.ContentElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.ContentElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("content");
    }
    get [S$.$select]() {
      return this.select;
    }
    set [S$.$select](value) {
      this.select = value;
    }
    [S$.$getDistributedNodes](...args) {
      return this.getDistributedNodes.apply(this, args);
    }
  };
  (html$.ContentElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ContentElement).created.call(this);
    ;
  }).prototype = html$.ContentElement.prototype;
  dart.addRtiResources(html$.ContentElement, ["html|ContentElement"]);
  dart.setMethodSignature(html$.ContentElement, () => dart.global.Object.setPrototypeOf({[S$.$getDistributedNodes]: T$4.VoidToListOfNode()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ContentElement))));
  dart.setStaticMethodSignature(html$.ContentElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.ContentElement, () => dart.global.Object.setPrototypeOf({[S$.$select]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ContentElement))));
  dart.setSetterSignature(html$.ContentElement, () => dart.global.Object.setPrototypeOf({[S$.$select]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.ContentElement))));
  dart.setStaticGetterSignature(html$.ContentElement, () => ['supported']);
  dart.setLibraryUri(html$.ContentElement, I[167]);
  dart.registerExtension("HTMLContentElement", html$.ContentElement);
  html$.CookieStore = class CookieStore extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CookieStore.__();
    }
    [S.$getAll](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.getAll(options_dict));
    }
    [S$.$set](name, value, options = null) {
      if (name == null) dart.nullFailed(I[166], 3252, 21, "name");
      if (value == null) dart.nullFailed(I[166], 3252, 34, "value");
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.set(name, value, options_dict));
    }
  };
  dart.addRtiResources(html$.CookieStore, ["html|CookieStore"]);
  dart.setMethodSignature(html$.CookieStore, () => dart.global.Object.setPrototypeOf({
    [S.$getAll]: T$4.MapNToFuture(),
    [S$.$set]: T$4.StringAndStringAndMapNToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CookieStore))));
  dart.setStaticMethodSignature(html$.CookieStore, () => ['__']);
  dart.setLibraryUri(html$.CookieStore, I[167]);
  dart.registerExtension("CookieStore", html$.CookieStore);
  html$.Coordinates = class Coordinates extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Coordinates.__();
    }
    get [S$.$accuracy]() {
      return this.accuracy;
    }
    get [S$.$altitude]() {
      return this.altitude;
    }
    get [S$.$altitudeAccuracy]() {
      return this.altitudeAccuracy;
    }
    get [S$.$heading]() {
      return this.heading;
    }
    get [S$.$latitude]() {
      return this.latitude;
    }
    get [S$.$longitude]() {
      return this.longitude;
    }
    get [S$.$speed]() {
      return this.speed;
    }
  };
  dart.addRtiResources(html$.Coordinates, ["html|Coordinates"]);
  dart.setStaticMethodSignature(html$.Coordinates, () => ['__']);
  dart.setGetterSignature(html$.Coordinates, () => dart.global.Object.setPrototypeOf({
    [S$.$accuracy]: T$3.numN(),
    [S$.$altitude]: T$3.numN(),
    [S$.$altitudeAccuracy]: T$3.numN(),
    [S$.$heading]: T$3.numN(),
    [S$.$latitude]: T$3.numN(),
    [S$.$longitude]: T$3.numN(),
    [S$.$speed]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Coordinates))));
  dart.setLibraryUri(html$.Coordinates, I[167]);
  dart.registerExtension("Coordinates", html$.Coordinates);
  html$.Credential = class Credential extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Credential.__();
    }
    get [S.$id]() {
      return this.id;
    }
    get [S.$type]() {
      return this.type;
    }
  };
  dart.addRtiResources(html$.Credential, ["html|Credential"]);
  dart.setStaticMethodSignature(html$.Credential, () => ['__']);
  dart.setGetterSignature(html$.Credential, () => dart.global.Object.setPrototypeOf({
    [S.$id]: T$.StringN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Credential))));
  dart.setLibraryUri(html$.Credential, I[167]);
  dart.registerExtension("Credential", html$.Credential);
  html$.CredentialUserData = class CredentialUserData extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CredentialUserData.__();
    }
    get [S$.$iconUrl]() {
      return this.iconURL;
    }
    get [$name]() {
      return this.name;
    }
  };
  dart.addRtiResources(html$.CredentialUserData, ["html|CredentialUserData"]);
  dart.setStaticMethodSignature(html$.CredentialUserData, () => ['__']);
  dart.setGetterSignature(html$.CredentialUserData, () => dart.global.Object.setPrototypeOf({
    [S$.$iconUrl]: T$.StringN(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CredentialUserData))));
  dart.setLibraryUri(html$.CredentialUserData, I[167]);
  dart.registerExtension("CredentialUserData", html$.CredentialUserData);
  html$.CredentialsContainer = class CredentialsContainer extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CredentialsContainer.__();
    }
    [S$.$create](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.create(options_dict));
    }
    [S.$get](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.get(options_dict));
    }
    [S$.$preventSilentAccess]() {
      return js_util.promiseToFuture(T$.dynamic(), this.preventSilentAccess());
    }
    [S$.$requireUserMediation]() {
      return js_util.promiseToFuture(T$.dynamic(), this.requireUserMediation());
    }
    [S$.$store](credential) {
      if (credential == null) dart.nullFailed(I[166], 3352, 27, "credential");
      return js_util.promiseToFuture(T$.dynamic(), this.store(credential));
    }
  };
  dart.addRtiResources(html$.CredentialsContainer, ["html|CredentialsContainer"]);
  dart.setMethodSignature(html$.CredentialsContainer, () => dart.global.Object.setPrototypeOf({
    [S$.$create]: T$4.MapNToFuture(),
    [S.$get]: T$4.MapNToFuture(),
    [S$.$preventSilentAccess]: T$.VoidToFuture(),
    [S$.$requireUserMediation]: T$.VoidToFuture(),
    [S$.$store]: T$4.CredentialToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CredentialsContainer))));
  dart.setStaticMethodSignature(html$.CredentialsContainer, () => ['__']);
  dart.setLibraryUri(html$.CredentialsContainer, I[167]);
  dart.registerExtension("CredentialsContainer", html$.CredentialsContainer);
  html$.Crypto = class Crypto extends _interceptors.JavaScriptObject {
    [S$.$getRandomValues](array) {
      if (array == null) dart.nullFailed(I[166], 3363, 39, "array");
      return this[S$._getRandomValues](array);
    }
    static ['_#_#tearOff']() {
      return html$.Crypto.__();
    }
    static get supported() {
      return !!(window.crypto && window.crypto.getRandomValues);
    }
    get [S$.$subtle]() {
      return this.subtle;
    }
    [S$._getRandomValues](...args) {
      return this.getRandomValues.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Crypto, ["html|Crypto"]);
  dart.setMethodSignature(html$.Crypto, () => dart.global.Object.setPrototypeOf({
    [S$.$getRandomValues]: T$4.TypedDataToTypedData(),
    [S$._getRandomValues]: T$4.TypedDataToTypedData()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Crypto))));
  dart.setStaticMethodSignature(html$.Crypto, () => ['__']);
  dart.setGetterSignature(html$.Crypto, () => dart.global.Object.setPrototypeOf({[S$.$subtle]: T$4._SubtleCryptoN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Crypto))));
  dart.setStaticGetterSignature(html$.Crypto, () => ['supported']);
  dart.setLibraryUri(html$.Crypto, I[167]);
  dart.registerExtension("Crypto", html$.Crypto);
  html$.CryptoKey = class CryptoKey extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CryptoKey.__();
    }
    get [S$.$algorithm]() {
      return this.algorithm;
    }
    get [S$.$extractable]() {
      return this.extractable;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S$.$usages]() {
      return this.usages;
    }
  };
  dart.addRtiResources(html$.CryptoKey, ["html|CryptoKey"]);
  dart.setStaticMethodSignature(html$.CryptoKey, () => ['__']);
  dart.setGetterSignature(html$.CryptoKey, () => dart.global.Object.setPrototypeOf({
    [S$.$algorithm]: T$.ObjectN(),
    [S$.$extractable]: T$.boolN(),
    [S.$type]: T$.StringN(),
    [S$.$usages]: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CryptoKey))));
  dart.setLibraryUri(html$.CryptoKey, I[167]);
  dart.registerExtension("CryptoKey", html$.CryptoKey);
  html$.Css = class Css extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Css.__();
    }
    static registerProperty(descriptor) {
      if (descriptor == null) dart.nullFailed(I[166], 3461, 36, "descriptor");
      let descriptor_1 = html_common.convertDartToNative_Dictionary(descriptor);
      dart.global.CSS.registerProperty(descriptor_1);
      return;
    }
  };
  dart.addRtiResources(html$.Css, ["html|Css"]);
  dart.setStaticMethodSignature(html$.Css, () => ['__', 'Hz', 'ch', 'cm', 'deg', 'dpcm', 'dpi', 'dppx', 'em', 'escape', 'ex', 'fr', 'grad', 'inch', 'kHz', 'mm', 'ms', 'number', 'pc', 'percent', 'pt', 'px', 'rad', 'registerProperty', '_registerProperty_1', 'rem', 's', 'supports', 'supportsCondition', 'turn', 'vh', 'vmax', 'vmin', 'vw']);
  dart.setStaticGetterSignature(html$.Css, () => ['paintWorklet']);
  dart.setLibraryUri(html$.Css, I[167]);
  dart.registerExtension("CSS", html$.Css);
  html$.CssRule = class CssRule extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CssRule.__();
    }
    get [S$.$cssText]() {
      return this.cssText;
    }
    set [S$.$cssText](value) {
      this.cssText = value;
    }
    get [S$.$parentRule]() {
      return this.parentRule;
    }
    get [S$.$parentStyleSheet]() {
      return this.parentStyleSheet;
    }
    get [S.$type]() {
      return this.type;
    }
  };
  dart.addRtiResources(html$.CssRule, ["html|CssRule"]);
  dart.setStaticMethodSignature(html$.CssRule, () => ['__']);
  dart.setGetterSignature(html$.CssRule, () => dart.global.Object.setPrototypeOf({
    [S$.$cssText]: T$.StringN(),
    [S$.$parentRule]: T$4.CssRuleN(),
    [S$.$parentStyleSheet]: T$4.CssStyleSheetN(),
    [S.$type]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssRule))));
  dart.setSetterSignature(html$.CssRule, () => dart.global.Object.setPrototypeOf({[S$.$cssText]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssRule))));
  dart.setLibraryUri(html$.CssRule, I[167]);
  dart.setStaticFieldSignature(html$.CssRule, () => ['CHARSET_RULE', 'FONT_FACE_RULE', 'IMPORT_RULE', 'KEYFRAMES_RULE', 'KEYFRAME_RULE', 'MEDIA_RULE', 'NAMESPACE_RULE', 'PAGE_RULE', 'STYLE_RULE', 'SUPPORTS_RULE', 'VIEWPORT_RULE']);
  dart.defineLazy(html$.CssRule, {
    /*html$.CssRule.CHARSET_RULE*/get CHARSET_RULE() {
      return 2;
    },
    /*html$.CssRule.FONT_FACE_RULE*/get FONT_FACE_RULE() {
      return 5;
    },
    /*html$.CssRule.IMPORT_RULE*/get IMPORT_RULE() {
      return 3;
    },
    /*html$.CssRule.KEYFRAMES_RULE*/get KEYFRAMES_RULE() {
      return 7;
    },
    /*html$.CssRule.KEYFRAME_RULE*/get KEYFRAME_RULE() {
      return 8;
    },
    /*html$.CssRule.MEDIA_RULE*/get MEDIA_RULE() {
      return 4;
    },
    /*html$.CssRule.NAMESPACE_RULE*/get NAMESPACE_RULE() {
      return 10;
    },
    /*html$.CssRule.PAGE_RULE*/get PAGE_RULE() {
      return 6;
    },
    /*html$.CssRule.STYLE_RULE*/get STYLE_RULE() {
      return 1;
    },
    /*html$.CssRule.SUPPORTS_RULE*/get SUPPORTS_RULE() {
      return 12;
    },
    /*html$.CssRule.VIEWPORT_RULE*/get VIEWPORT_RULE() {
      return 15;
    }
  }, false);
  dart.registerExtension("CSSRule", html$.CssRule);
  html$.CssCharsetRule = class CssCharsetRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssCharsetRule.__();
    }
    get [S$.$encoding]() {
      return this.encoding;
    }
    set [S$.$encoding](value) {
      this.encoding = value;
    }
  };
  dart.addRtiResources(html$.CssCharsetRule, ["html|CssCharsetRule"]);
  dart.setStaticMethodSignature(html$.CssCharsetRule, () => ['__']);
  dart.setGetterSignature(html$.CssCharsetRule, () => dart.global.Object.setPrototypeOf({[S$.$encoding]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssCharsetRule))));
  dart.setSetterSignature(html$.CssCharsetRule, () => dart.global.Object.setPrototypeOf({[S$.$encoding]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssCharsetRule))));
  dart.setLibraryUri(html$.CssCharsetRule, I[167]);
  dart.registerExtension("CSSCharsetRule", html$.CssCharsetRule);
  html$.CssGroupingRule = class CssGroupingRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssGroupingRule.__();
    }
    get [S$.$cssRules]() {
      return this.cssRules;
    }
    [S$.$deleteRule](...args) {
      return this.deleteRule.apply(this, args);
    }
    [S$.$insertRule](...args) {
      return this.insertRule.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CssGroupingRule, ["html|CssGroupingRule"]);
  dart.setMethodSignature(html$.CssGroupingRule, () => dart.global.Object.setPrototypeOf({
    [S$.$deleteRule]: T$.intTovoid(),
    [S$.$insertRule]: T$.StringAndintToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CssGroupingRule))));
  dart.setStaticMethodSignature(html$.CssGroupingRule, () => ['__']);
  dart.setGetterSignature(html$.CssGroupingRule, () => dart.global.Object.setPrototypeOf({[S$.$cssRules]: T$4.ListNOfCssRule()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssGroupingRule))));
  dart.setLibraryUri(html$.CssGroupingRule, I[167]);
  dart.registerExtension("CSSGroupingRule", html$.CssGroupingRule);
  html$.CssConditionRule = class CssConditionRule extends html$.CssGroupingRule {
    static ['_#_#tearOff']() {
      return html$.CssConditionRule.__();
    }
    get [S$.$conditionText]() {
      return this.conditionText;
    }
  };
  dart.addRtiResources(html$.CssConditionRule, ["html|CssConditionRule"]);
  dart.setStaticMethodSignature(html$.CssConditionRule, () => ['__']);
  dart.setGetterSignature(html$.CssConditionRule, () => dart.global.Object.setPrototypeOf({[S$.$conditionText]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssConditionRule))));
  dart.setLibraryUri(html$.CssConditionRule, I[167]);
  dart.registerExtension("CSSConditionRule", html$.CssConditionRule);
  html$.CssFontFaceRule = class CssFontFaceRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssFontFaceRule.__();
    }
    get [S.$style]() {
      return this.style;
    }
  };
  dart.addRtiResources(html$.CssFontFaceRule, ["html|CssFontFaceRule"]);
  dart.setStaticMethodSignature(html$.CssFontFaceRule, () => ['__']);
  dart.setGetterSignature(html$.CssFontFaceRule, () => dart.global.Object.setPrototypeOf({[S.$style]: T$4.CssStyleDeclarationN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssFontFaceRule))));
  dart.setLibraryUri(html$.CssFontFaceRule, I[167]);
  dart.registerExtension("CSSFontFaceRule", html$.CssFontFaceRule);
  html$.CssStyleValue = class CssStyleValue extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CssStyleValue.__();
    }
  };
  dart.addRtiResources(html$.CssStyleValue, ["html|CssStyleValue"]);
  dart.setStaticMethodSignature(html$.CssStyleValue, () => ['__', 'parse']);
  dart.setLibraryUri(html$.CssStyleValue, I[167]);
  dart.registerExtension("CSSStyleValue", html$.CssStyleValue);
  html$.CssResourceValue = class CssResourceValue extends html$.CssStyleValue {
    static ['_#_#tearOff']() {
      return html$.CssResourceValue.__();
    }
    get [S$.$state]() {
      return this.state;
    }
  };
  dart.addRtiResources(html$.CssResourceValue, ["html|CssResourceValue"]);
  dart.setStaticMethodSignature(html$.CssResourceValue, () => ['__']);
  dart.setGetterSignature(html$.CssResourceValue, () => dart.global.Object.setPrototypeOf({[S$.$state]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssResourceValue))));
  dart.setLibraryUri(html$.CssResourceValue, I[167]);
  dart.registerExtension("CSSResourceValue", html$.CssResourceValue);
  html$.CssImageValue = class CssImageValue extends html$.CssResourceValue {
    static ['_#_#tearOff']() {
      return html$.CssImageValue.__();
    }
    get [S$.$intrinsicHeight]() {
      return this.intrinsicHeight;
    }
    get [S$.$intrinsicRatio]() {
      return this.intrinsicRatio;
    }
    get [S$.$intrinsicWidth]() {
      return this.intrinsicWidth;
    }
  };
  dart.addRtiResources(html$.CssImageValue, ["html|CssImageValue"]);
  dart.setStaticMethodSignature(html$.CssImageValue, () => ['__']);
  dart.setGetterSignature(html$.CssImageValue, () => dart.global.Object.setPrototypeOf({
    [S$.$intrinsicHeight]: T$3.numN(),
    [S$.$intrinsicRatio]: T$3.numN(),
    [S$.$intrinsicWidth]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssImageValue))));
  dart.setLibraryUri(html$.CssImageValue, I[167]);
  dart.registerExtension("CSSImageValue", html$.CssImageValue);
  html$.CssImportRule = class CssImportRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssImportRule.__();
    }
    get [S$.$href]() {
      return this.href;
    }
    get [S$.$media]() {
      return this.media;
    }
    get [S$.$styleSheet]() {
      return this.styleSheet;
    }
  };
  dart.addRtiResources(html$.CssImportRule, ["html|CssImportRule"]);
  dart.setStaticMethodSignature(html$.CssImportRule, () => ['__']);
  dart.setGetterSignature(html$.CssImportRule, () => dart.global.Object.setPrototypeOf({
    [S$.$href]: T$.StringN(),
    [S$.$media]: T$4.MediaListN(),
    [S$.$styleSheet]: T$4.CssStyleSheetN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssImportRule))));
  dart.setLibraryUri(html$.CssImportRule, I[167]);
  dart.registerExtension("CSSImportRule", html$.CssImportRule);
  html$.CssKeyframeRule = class CssKeyframeRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssKeyframeRule.__();
    }
    get [S$.$keyText]() {
      return this.keyText;
    }
    set [S$.$keyText](value) {
      this.keyText = value;
    }
    get [S.$style]() {
      return this.style;
    }
  };
  dart.addRtiResources(html$.CssKeyframeRule, ["html|CssKeyframeRule"]);
  dart.setStaticMethodSignature(html$.CssKeyframeRule, () => ['__']);
  dart.setGetterSignature(html$.CssKeyframeRule, () => dart.global.Object.setPrototypeOf({
    [S$.$keyText]: T$.StringN(),
    [S.$style]: T$4.CssStyleDeclarationN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssKeyframeRule))));
  dart.setSetterSignature(html$.CssKeyframeRule, () => dart.global.Object.setPrototypeOf({[S$.$keyText]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssKeyframeRule))));
  dart.setLibraryUri(html$.CssKeyframeRule, I[167]);
  dart.registerExtension("CSSKeyframeRule", html$.CssKeyframeRule);
  dart.registerExtension("MozCSSKeyframeRule", html$.CssKeyframeRule);
  dart.registerExtension("WebKitCSSKeyframeRule", html$.CssKeyframeRule);
  html$.CssKeyframesRule = class CssKeyframesRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssKeyframesRule.__();
    }
    get [S$.$cssRules]() {
      return this.cssRules;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    [S$.__getter__](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$.$appendRule](...args) {
      return this.appendRule.apply(this, args);
    }
    [S$.$deleteRule](...args) {
      return this.deleteRule.apply(this, args);
    }
    [S$.$findRule](...args) {
      return this.findRule.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CssKeyframesRule, ["html|CssKeyframesRule"]);
  dart.setMethodSignature(html$.CssKeyframesRule, () => dart.global.Object.setPrototypeOf({
    [S$.__getter__]: T$4.intToCssKeyframeRule(),
    [S$.$appendRule]: T$.StringTovoid(),
    [S$.$deleteRule]: T$.StringTovoid(),
    [S$.$findRule]: T$4.StringToCssKeyframeRuleN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CssKeyframesRule))));
  dart.setStaticMethodSignature(html$.CssKeyframesRule, () => ['__']);
  dart.setGetterSignature(html$.CssKeyframesRule, () => dart.global.Object.setPrototypeOf({
    [S$.$cssRules]: T$4.ListNOfCssRule(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssKeyframesRule))));
  dart.setSetterSignature(html$.CssKeyframesRule, () => dart.global.Object.setPrototypeOf({[$name]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssKeyframesRule))));
  dart.setLibraryUri(html$.CssKeyframesRule, I[167]);
  dart.registerExtension("CSSKeyframesRule", html$.CssKeyframesRule);
  dart.registerExtension("MozCSSKeyframesRule", html$.CssKeyframesRule);
  dart.registerExtension("WebKitCSSKeyframesRule", html$.CssKeyframesRule);
  html$.CssKeywordValue = class CssKeywordValue extends html$.CssStyleValue {
    static ['_#_#tearOff']() {
      return html$.CssKeywordValue.__();
    }
    static new(keyword) {
      if (keyword == null) dart.nullFailed(I[166], 3638, 34, "keyword");
      return html$.CssKeywordValue._create_1(keyword);
    }
    static ['_#new#tearOff'](keyword) {
      if (keyword == null) dart.nullFailed(I[166], 3638, 34, "keyword");
      return html$.CssKeywordValue.new(keyword);
    }
    static _create_1(keyword) {
      return new CSSKeywordValue(keyword);
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  dart.addRtiResources(html$.CssKeywordValue, ["html|CssKeywordValue"]);
  dart.setStaticMethodSignature(html$.CssKeywordValue, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.CssKeywordValue, () => dart.global.Object.setPrototypeOf({[S.$value]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssKeywordValue))));
  dart.setSetterSignature(html$.CssKeywordValue, () => dart.global.Object.setPrototypeOf({[S.$value]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssKeywordValue))));
  dart.setLibraryUri(html$.CssKeywordValue, I[167]);
  dart.registerExtension("CSSKeywordValue", html$.CssKeywordValue);
  html$.CssTransformComponent = class CssTransformComponent extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CssTransformComponent.__();
    }
    get [S$.$is2D]() {
      return this.is2D;
    }
    set [S$.$is2D](value) {
      this.is2D = value;
    }
  };
  dart.addRtiResources(html$.CssTransformComponent, ["html|CssTransformComponent"]);
  dart.setStaticMethodSignature(html$.CssTransformComponent, () => ['__']);
  dart.setGetterSignature(html$.CssTransformComponent, () => dart.global.Object.setPrototypeOf({[S$.$is2D]: T$.boolN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssTransformComponent))));
  dart.setSetterSignature(html$.CssTransformComponent, () => dart.global.Object.setPrototypeOf({[S$.$is2D]: T$.boolN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssTransformComponent))));
  dart.setLibraryUri(html$.CssTransformComponent, I[167]);
  dart.registerExtension("CSSTransformComponent", html$.CssTransformComponent);
  html$.CssMatrixComponent = class CssMatrixComponent extends html$.CssTransformComponent {
    static ['_#_#tearOff']() {
      return html$.CssMatrixComponent.__();
    }
    static new(matrix, options = null) {
      if (matrix == null) dart.nullFailed(I[166], 3659, 48, "matrix");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return html$.CssMatrixComponent._create_1(matrix, options_1);
      }
      return html$.CssMatrixComponent._create_2(matrix);
    }
    static ['_#new#tearOff'](matrix, options = null) {
      if (matrix == null) dart.nullFailed(I[166], 3659, 48, "matrix");
      return html$.CssMatrixComponent.new(matrix, options);
    }
    static _create_1(matrix, options) {
      return new CSSMatrixComponent(matrix, options);
    }
    static _create_2(matrix) {
      return new CSSMatrixComponent(matrix);
    }
    get [S$.$matrix]() {
      return this.matrix;
    }
    set [S$.$matrix](value) {
      this.matrix = value;
    }
  };
  dart.addRtiResources(html$.CssMatrixComponent, ["html|CssMatrixComponent"]);
  dart.setStaticMethodSignature(html$.CssMatrixComponent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.CssMatrixComponent, () => dart.global.Object.setPrototypeOf({[S$.$matrix]: T$4.DomMatrixN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssMatrixComponent))));
  dart.setSetterSignature(html$.CssMatrixComponent, () => dart.global.Object.setPrototypeOf({[S$.$matrix]: T$4.DomMatrixN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssMatrixComponent))));
  dart.setLibraryUri(html$.CssMatrixComponent, I[167]);
  dart.registerExtension("CSSMatrixComponent", html$.CssMatrixComponent);
  html$.CssMediaRule = class CssMediaRule extends html$.CssConditionRule {
    static ['_#_#tearOff']() {
      return html$.CssMediaRule.__();
    }
    get [S$.$media]() {
      return this.media;
    }
  };
  dart.addRtiResources(html$.CssMediaRule, ["html|CssMediaRule"]);
  dart.setStaticMethodSignature(html$.CssMediaRule, () => ['__']);
  dart.setGetterSignature(html$.CssMediaRule, () => dart.global.Object.setPrototypeOf({[S$.$media]: T$4.MediaListN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssMediaRule))));
  dart.setLibraryUri(html$.CssMediaRule, I[167]);
  dart.registerExtension("CSSMediaRule", html$.CssMediaRule);
  html$.CssNamespaceRule = class CssNamespaceRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssNamespaceRule.__();
    }
    get [S.$namespaceUri]() {
      return this.namespaceURI;
    }
    get [S$.$prefix]() {
      return this.prefix;
    }
  };
  dart.addRtiResources(html$.CssNamespaceRule, ["html|CssNamespaceRule"]);
  dart.setStaticMethodSignature(html$.CssNamespaceRule, () => ['__']);
  dart.setGetterSignature(html$.CssNamespaceRule, () => dart.global.Object.setPrototypeOf({
    [S.$namespaceUri]: T$.StringN(),
    [S$.$prefix]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssNamespaceRule))));
  dart.setLibraryUri(html$.CssNamespaceRule, I[167]);
  dart.registerExtension("CSSNamespaceRule", html$.CssNamespaceRule);
  html$.CssNumericValue = class CssNumericValue extends html$.CssStyleValue {
    static ['_#_#tearOff']() {
      return html$.CssNumericValue.__();
    }
    [$add](...args) {
      return this.add.apply(this, args);
    }
    [S$.$div](...args) {
      return this.div.apply(this, args);
    }
    [S$.$mul](...args) {
      return this.mul.apply(this, args);
    }
    [S$.$sub](...args) {
      return this.sub.apply(this, args);
    }
    [S$.$to](...args) {
      return this.to.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CssNumericValue, ["html|CssNumericValue"]);
  dart.setMethodSignature(html$.CssNumericValue, () => dart.global.Object.setPrototypeOf({
    [$add]: T$4.CssNumericValueToCssNumericValue(),
    [S$.$div]: T$4.numToCssNumericValue(),
    [S$.$mul]: T$4.numToCssNumericValue(),
    [S$.$sub]: T$4.CssNumericValueToCssNumericValue(),
    [S$.$to]: T$4.StringToCssNumericValue()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CssNumericValue))));
  dart.setStaticMethodSignature(html$.CssNumericValue, () => ['__', 'parse']);
  dart.setLibraryUri(html$.CssNumericValue, I[167]);
  dart.registerExtension("CSSNumericValue", html$.CssNumericValue);
  html$.CssPageRule = class CssPageRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssPageRule.__();
    }
    get [S$.$selectorText]() {
      return this.selectorText;
    }
    set [S$.$selectorText](value) {
      this.selectorText = value;
    }
    get [S.$style]() {
      return this.style;
    }
  };
  dart.addRtiResources(html$.CssPageRule, ["html|CssPageRule"]);
  dart.setStaticMethodSignature(html$.CssPageRule, () => ['__']);
  dart.setGetterSignature(html$.CssPageRule, () => dart.global.Object.setPrototypeOf({
    [S$.$selectorText]: T$.StringN(),
    [S.$style]: T$4.CssStyleDeclarationN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssPageRule))));
  dart.setSetterSignature(html$.CssPageRule, () => dart.global.Object.setPrototypeOf({[S$.$selectorText]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssPageRule))));
  dart.setLibraryUri(html$.CssPageRule, I[167]);
  dart.registerExtension("CSSPageRule", html$.CssPageRule);
  html$.CssPerspective = class CssPerspective extends html$.CssTransformComponent {
    static ['_#_#tearOff']() {
      return html$.CssPerspective.__();
    }
    static new(length) {
      if (length == null) dart.nullFailed(I[166], 3755, 42, "length");
      return html$.CssPerspective._create_1(length);
    }
    static ['_#new#tearOff'](length) {
      if (length == null) dart.nullFailed(I[166], 3755, 42, "length");
      return html$.CssPerspective.new(length);
    }
    static _create_1(length) {
      return new CSSPerspective(length);
    }
    get [$length]() {
      return this.length;
    }
    set [$length](value) {
      this.length = value;
    }
  };
  dart.addRtiResources(html$.CssPerspective, ["html|CssPerspective"]);
  dart.setStaticMethodSignature(html$.CssPerspective, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.CssPerspective, () => dart.global.Object.setPrototypeOf({[$length]: T$4.CssNumericValueN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssPerspective))));
  dart.setSetterSignature(html$.CssPerspective, () => dart.global.Object.setPrototypeOf({[$length]: T$4.CssNumericValueN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssPerspective))));
  dart.setLibraryUri(html$.CssPerspective, I[167]);
  dart.registerExtension("CSSPerspective", html$.CssPerspective);
  html$.CssPositionValue = class CssPositionValue extends html$.CssStyleValue {
    static ['_#_#tearOff']() {
      return html$.CssPositionValue.__();
    }
    static new(x, y) {
      if (x == null) dart.nullFailed(I[166], 3776, 44, "x");
      if (y == null) dart.nullFailed(I[166], 3776, 63, "y");
      return html$.CssPositionValue._create_1(x, y);
    }
    static ['_#new#tearOff'](x, y) {
      if (x == null) dart.nullFailed(I[166], 3776, 44, "x");
      if (y == null) dart.nullFailed(I[166], 3776, 63, "y");
      return html$.CssPositionValue.new(x, y);
    }
    static _create_1(x, y) {
      return new CSSPositionValue(x, y);
    }
    get [S$.$x]() {
      return this.x;
    }
    set [S$.$x](value) {
      this.x = value;
    }
    get [S$.$y]() {
      return this.y;
    }
    set [S$.$y](value) {
      this.y = value;
    }
  };
  dart.addRtiResources(html$.CssPositionValue, ["html|CssPositionValue"]);
  dart.setStaticMethodSignature(html$.CssPositionValue, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.CssPositionValue, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$4.CssNumericValueN(),
    [S$.$y]: T$4.CssNumericValueN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssPositionValue))));
  dart.setSetterSignature(html$.CssPositionValue, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$4.CssNumericValueN(),
    [S$.$y]: T$4.CssNumericValueN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssPositionValue))));
  dart.setLibraryUri(html$.CssPositionValue, I[167]);
  dart.registerExtension("CSSPositionValue", html$.CssPositionValue);
  html$.CssRotation = class CssRotation extends html$.CssTransformComponent {
    static ['_#_#tearOff']() {
      return html$.CssRotation.__();
    }
    static new(angleValue_OR_x, y = null, z = null, angle = null) {
      if (T$4.CssNumericValue()[_is](angleValue_OR_x) && y == null && z == null && angle == null) {
        return html$.CssRotation._create_1(angleValue_OR_x);
      }
      if (T$4.CssNumericValue()[_is](angle) && typeof z == 'number' && typeof y == 'number' && typeof angleValue_OR_x == 'number') {
        return html$.CssRotation._create_2(angleValue_OR_x, y, z, angle);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](angleValue_OR_x, y = null, z = null, angle = null) {
      return html$.CssRotation.new(angleValue_OR_x, y, z, angle);
    }
    static _create_1(angleValue_OR_x) {
      return new CSSRotation(angleValue_OR_x);
    }
    static _create_2(angleValue_OR_x, y, z, angle) {
      return new CSSRotation(angleValue_OR_x, y, z, angle);
    }
    get [S$.$angle]() {
      return this.angle;
    }
    set [S$.$angle](value) {
      this.angle = value;
    }
    get [S$.$x]() {
      return this.x;
    }
    set [S$.$x](value) {
      this.x = value;
    }
    get [S$.$y]() {
      return this.y;
    }
    set [S$.$y](value) {
      this.y = value;
    }
    get [S$.$z]() {
      return this.z;
    }
    set [S$.$z](value) {
      this.z = value;
    }
  };
  dart.addRtiResources(html$.CssRotation, ["html|CssRotation"]);
  dart.setStaticMethodSignature(html$.CssRotation, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.CssRotation, () => dart.global.Object.setPrototypeOf({
    [S$.$angle]: T$4.CssNumericValueN(),
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssRotation))));
  dart.setSetterSignature(html$.CssRotation, () => dart.global.Object.setPrototypeOf({
    [S$.$angle]: T$4.CssNumericValueN(),
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssRotation))));
  dart.setLibraryUri(html$.CssRotation, I[167]);
  dart.registerExtension("CSSRotation", html$.CssRotation);
  html$.CssScale = class CssScale extends html$.CssTransformComponent {
    static ['_#_#tearOff']() {
      return html$.CssScale.__();
    }
    static new(x, y, z = null) {
      if (x == null) dart.nullFailed(I[166], 3905, 24, "x");
      if (y == null) dart.nullFailed(I[166], 3905, 31, "y");
      if (typeof y == 'number' && typeof x == 'number' && z == null) {
        return html$.CssScale._create_1(x, y);
      }
      if (typeof z == 'number' && typeof y == 'number' && typeof x == 'number') {
        return html$.CssScale._create_2(x, y, z);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](x, y, z = null) {
      if (x == null) dart.nullFailed(I[166], 3905, 24, "x");
      if (y == null) dart.nullFailed(I[166], 3905, 31, "y");
      return html$.CssScale.new(x, y, z);
    }
    static _create_1(x, y) {
      return new CSSScale(x, y);
    }
    static _create_2(x, y, z) {
      return new CSSScale(x, y, z);
    }
    get [S$.$x]() {
      return this.x;
    }
    set [S$.$x](value) {
      this.x = value;
    }
    get [S$.$y]() {
      return this.y;
    }
    set [S$.$y](value) {
      this.y = value;
    }
    get [S$.$z]() {
      return this.z;
    }
    set [S$.$z](value) {
      this.z = value;
    }
  };
  dart.addRtiResources(html$.CssScale, ["html|CssScale"]);
  dart.setStaticMethodSignature(html$.CssScale, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.CssScale, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssScale))));
  dart.setSetterSignature(html$.CssScale, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssScale))));
  dart.setLibraryUri(html$.CssScale, I[167]);
  dart.registerExtension("CSSScale", html$.CssScale);
  html$.CssSkew = class CssSkew extends html$.CssTransformComponent {
    static ['_#_#tearOff']() {
      return html$.CssSkew.__();
    }
    static new(ax, ay) {
      if (ax == null) dart.nullFailed(I[166], 3941, 35, "ax");
      if (ay == null) dart.nullFailed(I[166], 3941, 55, "ay");
      return html$.CssSkew._create_1(ax, ay);
    }
    static ['_#new#tearOff'](ax, ay) {
      if (ax == null) dart.nullFailed(I[166], 3941, 35, "ax");
      if (ay == null) dart.nullFailed(I[166], 3941, 55, "ay");
      return html$.CssSkew.new(ax, ay);
    }
    static _create_1(ax, ay) {
      return new CSSSkew(ax, ay);
    }
    get [S$.$ax]() {
      return this.ax;
    }
    set [S$.$ax](value) {
      this.ax = value;
    }
    get [S$.$ay]() {
      return this.ay;
    }
    set [S$.$ay](value) {
      this.ay = value;
    }
  };
  dart.addRtiResources(html$.CssSkew, ["html|CssSkew"]);
  dart.setStaticMethodSignature(html$.CssSkew, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.CssSkew, () => dart.global.Object.setPrototypeOf({
    [S$.$ax]: T$4.CssNumericValueN(),
    [S$.$ay]: T$4.CssNumericValueN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssSkew))));
  dart.setSetterSignature(html$.CssSkew, () => dart.global.Object.setPrototypeOf({
    [S$.$ax]: T$4.CssNumericValueN(),
    [S$.$ay]: T$4.CssNumericValueN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssSkew))));
  dart.setLibraryUri(html$.CssSkew, I[167]);
  dart.registerExtension("CSSSkew", html$.CssSkew);
  html$.CssStyleDeclarationBase = class CssStyleDeclarationBase extends core.Object {
    get alignContent() {
      return this[S$.$getPropertyValue]("align-content");
    }
    set alignContent(value) {
      if (value == null) dart.nullFailed(I[166], 5927, 27, "value");
      this[S$.$setProperty]("align-content", value, "");
    }
    get alignItems() {
      return this[S$.$getPropertyValue]("align-items");
    }
    set alignItems(value) {
      if (value == null) dart.nullFailed(I[166], 5935, 25, "value");
      this[S$.$setProperty]("align-items", value, "");
    }
    get alignSelf() {
      return this[S$.$getPropertyValue]("align-self");
    }
    set alignSelf(value) {
      if (value == null) dart.nullFailed(I[166], 5943, 24, "value");
      this[S$.$setProperty]("align-self", value, "");
    }
    get animation() {
      return this[S$.$getPropertyValue]("animation");
    }
    set animation(value) {
      if (value == null) dart.nullFailed(I[166], 5951, 24, "value");
      this[S$.$setProperty]("animation", value, "");
    }
    get animationDelay() {
      return this[S$.$getPropertyValue]("animation-delay");
    }
    set animationDelay(value) {
      if (value == null) dart.nullFailed(I[166], 5959, 29, "value");
      this[S$.$setProperty]("animation-delay", value, "");
    }
    get animationDirection() {
      return this[S$.$getPropertyValue]("animation-direction");
    }
    set animationDirection(value) {
      if (value == null) dart.nullFailed(I[166], 5967, 33, "value");
      this[S$.$setProperty]("animation-direction", value, "");
    }
    get animationDuration() {
      return this[S$.$getPropertyValue]("animation-duration");
    }
    set animationDuration(value) {
      if (value == null) dart.nullFailed(I[166], 5975, 32, "value");
      this[S$.$setProperty]("animation-duration", value, "");
    }
    get animationFillMode() {
      return this[S$.$getPropertyValue]("animation-fill-mode");
    }
    set animationFillMode(value) {
      if (value == null) dart.nullFailed(I[166], 5983, 32, "value");
      this[S$.$setProperty]("animation-fill-mode", value, "");
    }
    get animationIterationCount() {
      return this[S$.$getPropertyValue]("animation-iteration-count");
    }
    set animationIterationCount(value) {
      if (value == null) dart.nullFailed(I[166], 5992, 38, "value");
      this[S$.$setProperty]("animation-iteration-count", value, "");
    }
    get animationName() {
      return this[S$.$getPropertyValue]("animation-name");
    }
    set animationName(value) {
      if (value == null) dart.nullFailed(I[166], 6000, 28, "value");
      this[S$.$setProperty]("animation-name", value, "");
    }
    get animationPlayState() {
      return this[S$.$getPropertyValue]("animation-play-state");
    }
    set animationPlayState(value) {
      if (value == null) dart.nullFailed(I[166], 6008, 33, "value");
      this[S$.$setProperty]("animation-play-state", value, "");
    }
    get animationTimingFunction() {
      return this[S$.$getPropertyValue]("animation-timing-function");
    }
    set animationTimingFunction(value) {
      if (value == null) dart.nullFailed(I[166], 6017, 38, "value");
      this[S$.$setProperty]("animation-timing-function", value, "");
    }
    get appRegion() {
      return this[S$.$getPropertyValue]("app-region");
    }
    set appRegion(value) {
      if (value == null) dart.nullFailed(I[166], 6025, 24, "value");
      this[S$.$setProperty]("app-region", value, "");
    }
    get appearance() {
      return this[S$.$getPropertyValue]("appearance");
    }
    set appearance(value) {
      if (value == null) dart.nullFailed(I[166], 6033, 25, "value");
      this[S$.$setProperty]("appearance", value, "");
    }
    get aspectRatio() {
      return this[S$.$getPropertyValue]("aspect-ratio");
    }
    set aspectRatio(value) {
      if (value == null) dart.nullFailed(I[166], 6041, 26, "value");
      this[S$.$setProperty]("aspect-ratio", value, "");
    }
    get backfaceVisibility() {
      return this[S$.$getPropertyValue]("backface-visibility");
    }
    set backfaceVisibility(value) {
      if (value == null) dart.nullFailed(I[166], 6049, 33, "value");
      this[S$.$setProperty]("backface-visibility", value, "");
    }
    get background() {
      return this[S$.$getPropertyValue]("background");
    }
    set background(value) {
      if (value == null) dart.nullFailed(I[166], 6057, 25, "value");
      this[S$.$setProperty]("background", value, "");
    }
    get backgroundAttachment() {
      return this[S$.$getPropertyValue]("background-attachment");
    }
    set backgroundAttachment(value) {
      if (value == null) dart.nullFailed(I[166], 6065, 35, "value");
      this[S$.$setProperty]("background-attachment", value, "");
    }
    get backgroundBlendMode() {
      return this[S$.$getPropertyValue]("background-blend-mode");
    }
    set backgroundBlendMode(value) {
      if (value == null) dart.nullFailed(I[166], 6073, 34, "value");
      this[S$.$setProperty]("background-blend-mode", value, "");
    }
    get backgroundClip() {
      return this[S$.$getPropertyValue]("background-clip");
    }
    set backgroundClip(value) {
      if (value == null) dart.nullFailed(I[166], 6081, 29, "value");
      this[S$.$setProperty]("background-clip", value, "");
    }
    get backgroundColor() {
      return this[S$.$getPropertyValue]("background-color");
    }
    set backgroundColor(value) {
      if (value == null) dart.nullFailed(I[166], 6089, 30, "value");
      this[S$.$setProperty]("background-color", value, "");
    }
    get backgroundComposite() {
      return this[S$.$getPropertyValue]("background-composite");
    }
    set backgroundComposite(value) {
      if (value == null) dart.nullFailed(I[166], 6097, 34, "value");
      this[S$.$setProperty]("background-composite", value, "");
    }
    get backgroundImage() {
      return this[S$.$getPropertyValue]("background-image");
    }
    set backgroundImage(value) {
      if (value == null) dart.nullFailed(I[166], 6105, 30, "value");
      this[S$.$setProperty]("background-image", value, "");
    }
    get backgroundOrigin() {
      return this[S$.$getPropertyValue]("background-origin");
    }
    set backgroundOrigin(value) {
      if (value == null) dart.nullFailed(I[166], 6113, 31, "value");
      this[S$.$setProperty]("background-origin", value, "");
    }
    get backgroundPosition() {
      return this[S$.$getPropertyValue]("background-position");
    }
    set backgroundPosition(value) {
      if (value == null) dart.nullFailed(I[166], 6121, 33, "value");
      this[S$.$setProperty]("background-position", value, "");
    }
    get backgroundPositionX() {
      return this[S$.$getPropertyValue]("background-position-x");
    }
    set backgroundPositionX(value) {
      if (value == null) dart.nullFailed(I[166], 6129, 34, "value");
      this[S$.$setProperty]("background-position-x", value, "");
    }
    get backgroundPositionY() {
      return this[S$.$getPropertyValue]("background-position-y");
    }
    set backgroundPositionY(value) {
      if (value == null) dart.nullFailed(I[166], 6137, 34, "value");
      this[S$.$setProperty]("background-position-y", value, "");
    }
    get backgroundRepeat() {
      return this[S$.$getPropertyValue]("background-repeat");
    }
    set backgroundRepeat(value) {
      if (value == null) dart.nullFailed(I[166], 6145, 31, "value");
      this[S$.$setProperty]("background-repeat", value, "");
    }
    get backgroundRepeatX() {
      return this[S$.$getPropertyValue]("background-repeat-x");
    }
    set backgroundRepeatX(value) {
      if (value == null) dart.nullFailed(I[166], 6153, 32, "value");
      this[S$.$setProperty]("background-repeat-x", value, "");
    }
    get backgroundRepeatY() {
      return this[S$.$getPropertyValue]("background-repeat-y");
    }
    set backgroundRepeatY(value) {
      if (value == null) dart.nullFailed(I[166], 6161, 32, "value");
      this[S$.$setProperty]("background-repeat-y", value, "");
    }
    get backgroundSize() {
      return this[S$.$getPropertyValue]("background-size");
    }
    set backgroundSize(value) {
      if (value == null) dart.nullFailed(I[166], 6169, 29, "value");
      this[S$.$setProperty]("background-size", value, "");
    }
    get border() {
      return this[S$.$getPropertyValue]("border");
    }
    set border(value) {
      if (value == null) dart.nullFailed(I[166], 6177, 21, "value");
      this[S$.$setProperty]("border", value, "");
    }
    get borderAfter() {
      return this[S$.$getPropertyValue]("border-after");
    }
    set borderAfter(value) {
      if (value == null) dart.nullFailed(I[166], 6185, 26, "value");
      this[S$.$setProperty]("border-after", value, "");
    }
    get borderAfterColor() {
      return this[S$.$getPropertyValue]("border-after-color");
    }
    set borderAfterColor(value) {
      if (value == null) dart.nullFailed(I[166], 6193, 31, "value");
      this[S$.$setProperty]("border-after-color", value, "");
    }
    get borderAfterStyle() {
      return this[S$.$getPropertyValue]("border-after-style");
    }
    set borderAfterStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6201, 31, "value");
      this[S$.$setProperty]("border-after-style", value, "");
    }
    get borderAfterWidth() {
      return this[S$.$getPropertyValue]("border-after-width");
    }
    set borderAfterWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6209, 31, "value");
      this[S$.$setProperty]("border-after-width", value, "");
    }
    get borderBefore() {
      return this[S$.$getPropertyValue]("border-before");
    }
    set borderBefore(value) {
      if (value == null) dart.nullFailed(I[166], 6217, 27, "value");
      this[S$.$setProperty]("border-before", value, "");
    }
    get borderBeforeColor() {
      return this[S$.$getPropertyValue]("border-before-color");
    }
    set borderBeforeColor(value) {
      if (value == null) dart.nullFailed(I[166], 6225, 32, "value");
      this[S$.$setProperty]("border-before-color", value, "");
    }
    get borderBeforeStyle() {
      return this[S$.$getPropertyValue]("border-before-style");
    }
    set borderBeforeStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6233, 32, "value");
      this[S$.$setProperty]("border-before-style", value, "");
    }
    get borderBeforeWidth() {
      return this[S$.$getPropertyValue]("border-before-width");
    }
    set borderBeforeWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6241, 32, "value");
      this[S$.$setProperty]("border-before-width", value, "");
    }
    get borderBottom() {
      return this[S$.$getPropertyValue]("border-bottom");
    }
    set borderBottom(value) {
      if (value == null) dart.nullFailed(I[166], 6249, 27, "value");
      this[S$.$setProperty]("border-bottom", value, "");
    }
    get borderBottomColor() {
      return this[S$.$getPropertyValue]("border-bottom-color");
    }
    set borderBottomColor(value) {
      if (value == null) dart.nullFailed(I[166], 6257, 32, "value");
      this[S$.$setProperty]("border-bottom-color", value, "");
    }
    get borderBottomLeftRadius() {
      return this[S$.$getPropertyValue]("border-bottom-left-radius");
    }
    set borderBottomLeftRadius(value) {
      if (value == null) dart.nullFailed(I[166], 6266, 37, "value");
      this[S$.$setProperty]("border-bottom-left-radius", value, "");
    }
    get borderBottomRightRadius() {
      return this[S$.$getPropertyValue]("border-bottom-right-radius");
    }
    set borderBottomRightRadius(value) {
      if (value == null) dart.nullFailed(I[166], 6275, 38, "value");
      this[S$.$setProperty]("border-bottom-right-radius", value, "");
    }
    get borderBottomStyle() {
      return this[S$.$getPropertyValue]("border-bottom-style");
    }
    set borderBottomStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6283, 32, "value");
      this[S$.$setProperty]("border-bottom-style", value, "");
    }
    get borderBottomWidth() {
      return this[S$.$getPropertyValue]("border-bottom-width");
    }
    set borderBottomWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6291, 32, "value");
      this[S$.$setProperty]("border-bottom-width", value, "");
    }
    get borderCollapse() {
      return this[S$.$getPropertyValue]("border-collapse");
    }
    set borderCollapse(value) {
      if (value == null) dart.nullFailed(I[166], 6299, 29, "value");
      this[S$.$setProperty]("border-collapse", value, "");
    }
    get borderColor() {
      return this[S$.$getPropertyValue]("border-color");
    }
    set borderColor(value) {
      if (value == null) dart.nullFailed(I[166], 6307, 26, "value");
      this[S$.$setProperty]("border-color", value, "");
    }
    get borderEnd() {
      return this[S$.$getPropertyValue]("border-end");
    }
    set borderEnd(value) {
      if (value == null) dart.nullFailed(I[166], 6315, 24, "value");
      this[S$.$setProperty]("border-end", value, "");
    }
    get borderEndColor() {
      return this[S$.$getPropertyValue]("border-end-color");
    }
    set borderEndColor(value) {
      if (value == null) dart.nullFailed(I[166], 6323, 29, "value");
      this[S$.$setProperty]("border-end-color", value, "");
    }
    get borderEndStyle() {
      return this[S$.$getPropertyValue]("border-end-style");
    }
    set borderEndStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6331, 29, "value");
      this[S$.$setProperty]("border-end-style", value, "");
    }
    get borderEndWidth() {
      return this[S$.$getPropertyValue]("border-end-width");
    }
    set borderEndWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6339, 29, "value");
      this[S$.$setProperty]("border-end-width", value, "");
    }
    get borderFit() {
      return this[S$.$getPropertyValue]("border-fit");
    }
    set borderFit(value) {
      if (value == null) dart.nullFailed(I[166], 6347, 24, "value");
      this[S$.$setProperty]("border-fit", value, "");
    }
    get borderHorizontalSpacing() {
      return this[S$.$getPropertyValue]("border-horizontal-spacing");
    }
    set borderHorizontalSpacing(value) {
      if (value == null) dart.nullFailed(I[166], 6356, 38, "value");
      this[S$.$setProperty]("border-horizontal-spacing", value, "");
    }
    get borderImage() {
      return this[S$.$getPropertyValue]("border-image");
    }
    set borderImage(value) {
      if (value == null) dart.nullFailed(I[166], 6364, 26, "value");
      this[S$.$setProperty]("border-image", value, "");
    }
    get borderImageOutset() {
      return this[S$.$getPropertyValue]("border-image-outset");
    }
    set borderImageOutset(value) {
      if (value == null) dart.nullFailed(I[166], 6372, 32, "value");
      this[S$.$setProperty]("border-image-outset", value, "");
    }
    get borderImageRepeat() {
      return this[S$.$getPropertyValue]("border-image-repeat");
    }
    set borderImageRepeat(value) {
      if (value == null) dart.nullFailed(I[166], 6380, 32, "value");
      this[S$.$setProperty]("border-image-repeat", value, "");
    }
    get borderImageSlice() {
      return this[S$.$getPropertyValue]("border-image-slice");
    }
    set borderImageSlice(value) {
      if (value == null) dart.nullFailed(I[166], 6388, 31, "value");
      this[S$.$setProperty]("border-image-slice", value, "");
    }
    get borderImageSource() {
      return this[S$.$getPropertyValue]("border-image-source");
    }
    set borderImageSource(value) {
      if (value == null) dart.nullFailed(I[166], 6396, 32, "value");
      this[S$.$setProperty]("border-image-source", value, "");
    }
    get borderImageWidth() {
      return this[S$.$getPropertyValue]("border-image-width");
    }
    set borderImageWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6404, 31, "value");
      this[S$.$setProperty]("border-image-width", value, "");
    }
    get borderLeft() {
      return this[S$.$getPropertyValue]("border-left");
    }
    set borderLeft(value) {
      if (value == null) dart.nullFailed(I[166], 6412, 25, "value");
      this[S$.$setProperty]("border-left", value, "");
    }
    get borderLeftColor() {
      return this[S$.$getPropertyValue]("border-left-color");
    }
    set borderLeftColor(value) {
      if (value == null) dart.nullFailed(I[166], 6420, 30, "value");
      this[S$.$setProperty]("border-left-color", value, "");
    }
    get borderLeftStyle() {
      return this[S$.$getPropertyValue]("border-left-style");
    }
    set borderLeftStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6428, 30, "value");
      this[S$.$setProperty]("border-left-style", value, "");
    }
    get borderLeftWidth() {
      return this[S$.$getPropertyValue]("border-left-width");
    }
    set borderLeftWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6436, 30, "value");
      this[S$.$setProperty]("border-left-width", value, "");
    }
    get borderRadius() {
      return this[S$.$getPropertyValue]("border-radius");
    }
    set borderRadius(value) {
      if (value == null) dart.nullFailed(I[166], 6444, 27, "value");
      this[S$.$setProperty]("border-radius", value, "");
    }
    get borderRight() {
      return this[S$.$getPropertyValue]("border-right");
    }
    set borderRight(value) {
      if (value == null) dart.nullFailed(I[166], 6452, 26, "value");
      this[S$.$setProperty]("border-right", value, "");
    }
    get borderRightColor() {
      return this[S$.$getPropertyValue]("border-right-color");
    }
    set borderRightColor(value) {
      if (value == null) dart.nullFailed(I[166], 6460, 31, "value");
      this[S$.$setProperty]("border-right-color", value, "");
    }
    get borderRightStyle() {
      return this[S$.$getPropertyValue]("border-right-style");
    }
    set borderRightStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6468, 31, "value");
      this[S$.$setProperty]("border-right-style", value, "");
    }
    get borderRightWidth() {
      return this[S$.$getPropertyValue]("border-right-width");
    }
    set borderRightWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6476, 31, "value");
      this[S$.$setProperty]("border-right-width", value, "");
    }
    get borderSpacing() {
      return this[S$.$getPropertyValue]("border-spacing");
    }
    set borderSpacing(value) {
      if (value == null) dart.nullFailed(I[166], 6484, 28, "value");
      this[S$.$setProperty]("border-spacing", value, "");
    }
    get borderStart() {
      return this[S$.$getPropertyValue]("border-start");
    }
    set borderStart(value) {
      if (value == null) dart.nullFailed(I[166], 6492, 26, "value");
      this[S$.$setProperty]("border-start", value, "");
    }
    get borderStartColor() {
      return this[S$.$getPropertyValue]("border-start-color");
    }
    set borderStartColor(value) {
      if (value == null) dart.nullFailed(I[166], 6500, 31, "value");
      this[S$.$setProperty]("border-start-color", value, "");
    }
    get borderStartStyle() {
      return this[S$.$getPropertyValue]("border-start-style");
    }
    set borderStartStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6508, 31, "value");
      this[S$.$setProperty]("border-start-style", value, "");
    }
    get borderStartWidth() {
      return this[S$.$getPropertyValue]("border-start-width");
    }
    set borderStartWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6516, 31, "value");
      this[S$.$setProperty]("border-start-width", value, "");
    }
    get borderStyle() {
      return this[S$.$getPropertyValue]("border-style");
    }
    set borderStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6524, 26, "value");
      this[S$.$setProperty]("border-style", value, "");
    }
    get borderTop() {
      return this[S$.$getPropertyValue]("border-top");
    }
    set borderTop(value) {
      if (value == null) dart.nullFailed(I[166], 6532, 24, "value");
      this[S$.$setProperty]("border-top", value, "");
    }
    get borderTopColor() {
      return this[S$.$getPropertyValue]("border-top-color");
    }
    set borderTopColor(value) {
      if (value == null) dart.nullFailed(I[166], 6540, 29, "value");
      this[S$.$setProperty]("border-top-color", value, "");
    }
    get borderTopLeftRadius() {
      return this[S$.$getPropertyValue]("border-top-left-radius");
    }
    set borderTopLeftRadius(value) {
      if (value == null) dart.nullFailed(I[166], 6548, 34, "value");
      this[S$.$setProperty]("border-top-left-radius", value, "");
    }
    get borderTopRightRadius() {
      return this[S$.$getPropertyValue]("border-top-right-radius");
    }
    set borderTopRightRadius(value) {
      if (value == null) dart.nullFailed(I[166], 6557, 35, "value");
      this[S$.$setProperty]("border-top-right-radius", value, "");
    }
    get borderTopStyle() {
      return this[S$.$getPropertyValue]("border-top-style");
    }
    set borderTopStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6565, 29, "value");
      this[S$.$setProperty]("border-top-style", value, "");
    }
    get borderTopWidth() {
      return this[S$.$getPropertyValue]("border-top-width");
    }
    set borderTopWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6573, 29, "value");
      this[S$.$setProperty]("border-top-width", value, "");
    }
    get borderVerticalSpacing() {
      return this[S$.$getPropertyValue]("border-vertical-spacing");
    }
    set borderVerticalSpacing(value) {
      if (value == null) dart.nullFailed(I[166], 6582, 36, "value");
      this[S$.$setProperty]("border-vertical-spacing", value, "");
    }
    get borderWidth() {
      return this[S$.$getPropertyValue]("border-width");
    }
    set borderWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6590, 26, "value");
      this[S$.$setProperty]("border-width", value, "");
    }
    get bottom() {
      return this[S$.$getPropertyValue]("bottom");
    }
    set bottom(value) {
      if (value == null) dart.nullFailed(I[166], 6598, 21, "value");
      this[S$.$setProperty]("bottom", value, "");
    }
    get boxAlign() {
      return this[S$.$getPropertyValue]("box-align");
    }
    set boxAlign(value) {
      if (value == null) dart.nullFailed(I[166], 6606, 23, "value");
      this[S$.$setProperty]("box-align", value, "");
    }
    get boxDecorationBreak() {
      return this[S$.$getPropertyValue]("box-decoration-break");
    }
    set boxDecorationBreak(value) {
      if (value == null) dart.nullFailed(I[166], 6614, 33, "value");
      this[S$.$setProperty]("box-decoration-break", value, "");
    }
    get boxDirection() {
      return this[S$.$getPropertyValue]("box-direction");
    }
    set boxDirection(value) {
      if (value == null) dart.nullFailed(I[166], 6622, 27, "value");
      this[S$.$setProperty]("box-direction", value, "");
    }
    get boxFlex() {
      return this[S$.$getPropertyValue]("box-flex");
    }
    set boxFlex(value) {
      if (value == null) dart.nullFailed(I[166], 6630, 22, "value");
      this[S$.$setProperty]("box-flex", value, "");
    }
    get boxFlexGroup() {
      return this[S$.$getPropertyValue]("box-flex-group");
    }
    set boxFlexGroup(value) {
      if (value == null) dart.nullFailed(I[166], 6638, 27, "value");
      this[S$.$setProperty]("box-flex-group", value, "");
    }
    get boxLines() {
      return this[S$.$getPropertyValue]("box-lines");
    }
    set boxLines(value) {
      if (value == null) dart.nullFailed(I[166], 6646, 23, "value");
      this[S$.$setProperty]("box-lines", value, "");
    }
    get boxOrdinalGroup() {
      return this[S$.$getPropertyValue]("box-ordinal-group");
    }
    set boxOrdinalGroup(value) {
      if (value == null) dart.nullFailed(I[166], 6654, 30, "value");
      this[S$.$setProperty]("box-ordinal-group", value, "");
    }
    get boxOrient() {
      return this[S$.$getPropertyValue]("box-orient");
    }
    set boxOrient(value) {
      if (value == null) dart.nullFailed(I[166], 6662, 24, "value");
      this[S$.$setProperty]("box-orient", value, "");
    }
    get boxPack() {
      return this[S$.$getPropertyValue]("box-pack");
    }
    set boxPack(value) {
      if (value == null) dart.nullFailed(I[166], 6670, 22, "value");
      this[S$.$setProperty]("box-pack", value, "");
    }
    get boxReflect() {
      return this[S$.$getPropertyValue]("box-reflect");
    }
    set boxReflect(value) {
      if (value == null) dart.nullFailed(I[166], 6678, 25, "value");
      this[S$.$setProperty]("box-reflect", value, "");
    }
    get boxShadow() {
      return this[S$.$getPropertyValue]("box-shadow");
    }
    set boxShadow(value) {
      if (value == null) dart.nullFailed(I[166], 6686, 24, "value");
      this[S$.$setProperty]("box-shadow", value, "");
    }
    get boxSizing() {
      return this[S$.$getPropertyValue]("box-sizing");
    }
    set boxSizing(value) {
      if (value == null) dart.nullFailed(I[166], 6694, 24, "value");
      this[S$.$setProperty]("box-sizing", value, "");
    }
    get captionSide() {
      return this[S$.$getPropertyValue]("caption-side");
    }
    set captionSide(value) {
      if (value == null) dart.nullFailed(I[166], 6702, 26, "value");
      this[S$.$setProperty]("caption-side", value, "");
    }
    get clear() {
      return this[S$.$getPropertyValue]("clear");
    }
    set clear(value) {
      if (value == null) dart.nullFailed(I[166], 6710, 20, "value");
      this[S$.$setProperty]("clear", value, "");
    }
    get clip() {
      return this[S$.$getPropertyValue]("clip");
    }
    set clip(value) {
      if (value == null) dart.nullFailed(I[166], 6718, 19, "value");
      this[S$.$setProperty]("clip", value, "");
    }
    get clipPath() {
      return this[S$.$getPropertyValue]("clip-path");
    }
    set clipPath(value) {
      if (value == null) dart.nullFailed(I[166], 6726, 23, "value");
      this[S$.$setProperty]("clip-path", value, "");
    }
    get color() {
      return this[S$.$getPropertyValue]("color");
    }
    set color(value) {
      if (value == null) dart.nullFailed(I[166], 6734, 20, "value");
      this[S$.$setProperty]("color", value, "");
    }
    get columnBreakAfter() {
      return this[S$.$getPropertyValue]("column-break-after");
    }
    set columnBreakAfter(value) {
      if (value == null) dart.nullFailed(I[166], 6742, 31, "value");
      this[S$.$setProperty]("column-break-after", value, "");
    }
    get columnBreakBefore() {
      return this[S$.$getPropertyValue]("column-break-before");
    }
    set columnBreakBefore(value) {
      if (value == null) dart.nullFailed(I[166], 6750, 32, "value");
      this[S$.$setProperty]("column-break-before", value, "");
    }
    get columnBreakInside() {
      return this[S$.$getPropertyValue]("column-break-inside");
    }
    set columnBreakInside(value) {
      if (value == null) dart.nullFailed(I[166], 6758, 32, "value");
      this[S$.$setProperty]("column-break-inside", value, "");
    }
    get columnCount() {
      return this[S$.$getPropertyValue]("column-count");
    }
    set columnCount(value) {
      if (value == null) dart.nullFailed(I[166], 6766, 26, "value");
      this[S$.$setProperty]("column-count", value, "");
    }
    get columnFill() {
      return this[S$.$getPropertyValue]("column-fill");
    }
    set columnFill(value) {
      if (value == null) dart.nullFailed(I[166], 6774, 25, "value");
      this[S$.$setProperty]("column-fill", value, "");
    }
    get columnGap() {
      return this[S$.$getPropertyValue]("column-gap");
    }
    set columnGap(value) {
      if (value == null) dart.nullFailed(I[166], 6782, 24, "value");
      this[S$.$setProperty]("column-gap", value, "");
    }
    get columnRule() {
      return this[S$.$getPropertyValue]("column-rule");
    }
    set columnRule(value) {
      if (value == null) dart.nullFailed(I[166], 6790, 25, "value");
      this[S$.$setProperty]("column-rule", value, "");
    }
    get columnRuleColor() {
      return this[S$.$getPropertyValue]("column-rule-color");
    }
    set columnRuleColor(value) {
      if (value == null) dart.nullFailed(I[166], 6798, 30, "value");
      this[S$.$setProperty]("column-rule-color", value, "");
    }
    get columnRuleStyle() {
      return this[S$.$getPropertyValue]("column-rule-style");
    }
    set columnRuleStyle(value) {
      if (value == null) dart.nullFailed(I[166], 6806, 30, "value");
      this[S$.$setProperty]("column-rule-style", value, "");
    }
    get columnRuleWidth() {
      return this[S$.$getPropertyValue]("column-rule-width");
    }
    set columnRuleWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6814, 30, "value");
      this[S$.$setProperty]("column-rule-width", value, "");
    }
    get columnSpan() {
      return this[S$.$getPropertyValue]("column-span");
    }
    set columnSpan(value) {
      if (value == null) dart.nullFailed(I[166], 6822, 25, "value");
      this[S$.$setProperty]("column-span", value, "");
    }
    get columnWidth() {
      return this[S$.$getPropertyValue]("column-width");
    }
    set columnWidth(value) {
      if (value == null) dart.nullFailed(I[166], 6830, 26, "value");
      this[S$.$setProperty]("column-width", value, "");
    }
    get columns() {
      return this[S$.$getPropertyValue]("columns");
    }
    set columns(value) {
      if (value == null) dart.nullFailed(I[166], 6838, 22, "value");
      this[S$.$setProperty]("columns", value, "");
    }
    get content() {
      return this[S$.$getPropertyValue]("content");
    }
    set content(value) {
      if (value == null) dart.nullFailed(I[166], 6846, 22, "value");
      this[S$.$setProperty]("content", value, "");
    }
    get counterIncrement() {
      return this[S$.$getPropertyValue]("counter-increment");
    }
    set counterIncrement(value) {
      if (value == null) dart.nullFailed(I[166], 6854, 31, "value");
      this[S$.$setProperty]("counter-increment", value, "");
    }
    get counterReset() {
      return this[S$.$getPropertyValue]("counter-reset");
    }
    set counterReset(value) {
      if (value == null) dart.nullFailed(I[166], 6862, 27, "value");
      this[S$.$setProperty]("counter-reset", value, "");
    }
    get cursor() {
      return this[S$.$getPropertyValue]("cursor");
    }
    set cursor(value) {
      if (value == null) dart.nullFailed(I[166], 6870, 21, "value");
      this[S$.$setProperty]("cursor", value, "");
    }
    get direction() {
      return this[S$.$getPropertyValue]("direction");
    }
    set direction(value) {
      if (value == null) dart.nullFailed(I[166], 6878, 24, "value");
      this[S$.$setProperty]("direction", value, "");
    }
    get display() {
      return this[S$.$getPropertyValue]("display");
    }
    set display(value) {
      if (value == null) dart.nullFailed(I[166], 6886, 22, "value");
      this[S$.$setProperty]("display", value, "");
    }
    get emptyCells() {
      return this[S$.$getPropertyValue]("empty-cells");
    }
    set emptyCells(value) {
      if (value == null) dart.nullFailed(I[166], 6894, 25, "value");
      this[S$.$setProperty]("empty-cells", value, "");
    }
    get filter() {
      return this[S$.$getPropertyValue]("filter");
    }
    set filter(value) {
      if (value == null) dart.nullFailed(I[166], 6902, 21, "value");
      this[S$.$setProperty]("filter", value, "");
    }
    get flex() {
      return this[S$.$getPropertyValue]("flex");
    }
    set flex(value) {
      if (value == null) dart.nullFailed(I[166], 6910, 19, "value");
      this[S$.$setProperty]("flex", value, "");
    }
    get flexBasis() {
      return this[S$.$getPropertyValue]("flex-basis");
    }
    set flexBasis(value) {
      if (value == null) dart.nullFailed(I[166], 6918, 24, "value");
      this[S$.$setProperty]("flex-basis", value, "");
    }
    get flexDirection() {
      return this[S$.$getPropertyValue]("flex-direction");
    }
    set flexDirection(value) {
      if (value == null) dart.nullFailed(I[166], 6926, 28, "value");
      this[S$.$setProperty]("flex-direction", value, "");
    }
    get flexFlow() {
      return this[S$.$getPropertyValue]("flex-flow");
    }
    set flexFlow(value) {
      if (value == null) dart.nullFailed(I[166], 6934, 23, "value");
      this[S$.$setProperty]("flex-flow", value, "");
    }
    get flexGrow() {
      return this[S$.$getPropertyValue]("flex-grow");
    }
    set flexGrow(value) {
      if (value == null) dart.nullFailed(I[166], 6942, 23, "value");
      this[S$.$setProperty]("flex-grow", value, "");
    }
    get flexShrink() {
      return this[S$.$getPropertyValue]("flex-shrink");
    }
    set flexShrink(value) {
      if (value == null) dart.nullFailed(I[166], 6950, 25, "value");
      this[S$.$setProperty]("flex-shrink", value, "");
    }
    get flexWrap() {
      return this[S$.$getPropertyValue]("flex-wrap");
    }
    set flexWrap(value) {
      if (value == null) dart.nullFailed(I[166], 6958, 23, "value");
      this[S$.$setProperty]("flex-wrap", value, "");
    }
    get float() {
      return this[S$.$getPropertyValue]("float");
    }
    set float(value) {
      if (value == null) dart.nullFailed(I[166], 6966, 20, "value");
      this[S$.$setProperty]("float", value, "");
    }
    get font() {
      return this[S$.$getPropertyValue]("font");
    }
    set font(value) {
      if (value == null) dart.nullFailed(I[166], 6974, 19, "value");
      this[S$.$setProperty]("font", value, "");
    }
    get fontFamily() {
      return this[S$.$getPropertyValue]("font-family");
    }
    set fontFamily(value) {
      if (value == null) dart.nullFailed(I[166], 6982, 25, "value");
      this[S$.$setProperty]("font-family", value, "");
    }
    get fontFeatureSettings() {
      return this[S$.$getPropertyValue]("font-feature-settings");
    }
    set fontFeatureSettings(value) {
      if (value == null) dart.nullFailed(I[166], 6990, 34, "value");
      this[S$.$setProperty]("font-feature-settings", value, "");
    }
    get fontKerning() {
      return this[S$.$getPropertyValue]("font-kerning");
    }
    set fontKerning(value) {
      if (value == null) dart.nullFailed(I[166], 6998, 26, "value");
      this[S$.$setProperty]("font-kerning", value, "");
    }
    get fontSize() {
      return this[S$.$getPropertyValue]("font-size");
    }
    set fontSize(value) {
      if (value == null) dart.nullFailed(I[166], 7006, 23, "value");
      this[S$.$setProperty]("font-size", value, "");
    }
    get fontSizeDelta() {
      return this[S$.$getPropertyValue]("font-size-delta");
    }
    set fontSizeDelta(value) {
      if (value == null) dart.nullFailed(I[166], 7014, 28, "value");
      this[S$.$setProperty]("font-size-delta", value, "");
    }
    get fontSmoothing() {
      return this[S$.$getPropertyValue]("font-smoothing");
    }
    set fontSmoothing(value) {
      if (value == null) dart.nullFailed(I[166], 7022, 28, "value");
      this[S$.$setProperty]("font-smoothing", value, "");
    }
    get fontStretch() {
      return this[S$.$getPropertyValue]("font-stretch");
    }
    set fontStretch(value) {
      if (value == null) dart.nullFailed(I[166], 7030, 26, "value");
      this[S$.$setProperty]("font-stretch", value, "");
    }
    get fontStyle() {
      return this[S$.$getPropertyValue]("font-style");
    }
    set fontStyle(value) {
      if (value == null) dart.nullFailed(I[166], 7038, 24, "value");
      this[S$.$setProperty]("font-style", value, "");
    }
    get fontVariant() {
      return this[S$.$getPropertyValue]("font-variant");
    }
    set fontVariant(value) {
      if (value == null) dart.nullFailed(I[166], 7046, 26, "value");
      this[S$.$setProperty]("font-variant", value, "");
    }
    get fontVariantLigatures() {
      return this[S$.$getPropertyValue]("font-variant-ligatures");
    }
    set fontVariantLigatures(value) {
      if (value == null) dart.nullFailed(I[166], 7054, 35, "value");
      this[S$.$setProperty]("font-variant-ligatures", value, "");
    }
    get fontWeight() {
      return this[S$.$getPropertyValue]("font-weight");
    }
    set fontWeight(value) {
      if (value == null) dart.nullFailed(I[166], 7062, 25, "value");
      this[S$.$setProperty]("font-weight", value, "");
    }
    get gap() {
      return this[S$.$getPropertyValue]("gap");
    }
    set gap(value) {
      if (value == null) dart.nullFailed(I[166], 7070, 18, "value");
      this[S$.$setProperty]("gap", value, "");
    }
    get grid() {
      return this[S$.$getPropertyValue]("grid");
    }
    set grid(value) {
      if (value == null) dart.nullFailed(I[166], 7078, 19, "value");
      this[S$.$setProperty]("grid", value, "");
    }
    get gridArea() {
      return this[S$.$getPropertyValue]("grid-area");
    }
    set gridArea(value) {
      if (value == null) dart.nullFailed(I[166], 7086, 23, "value");
      this[S$.$setProperty]("grid-area", value, "");
    }
    get gridAutoColumns() {
      return this[S$.$getPropertyValue]("grid-auto-columns");
    }
    set gridAutoColumns(value) {
      if (value == null) dart.nullFailed(I[166], 7094, 30, "value");
      this[S$.$setProperty]("grid-auto-columns", value, "");
    }
    get gridAutoFlow() {
      return this[S$.$getPropertyValue]("grid-auto-flow");
    }
    set gridAutoFlow(value) {
      if (value == null) dart.nullFailed(I[166], 7102, 27, "value");
      this[S$.$setProperty]("grid-auto-flow", value, "");
    }
    get gridAutoRows() {
      return this[S$.$getPropertyValue]("grid-auto-rows");
    }
    set gridAutoRows(value) {
      if (value == null) dart.nullFailed(I[166], 7110, 27, "value");
      this[S$.$setProperty]("grid-auto-rows", value, "");
    }
    get gridColumn() {
      return this[S$.$getPropertyValue]("grid-column");
    }
    set gridColumn(value) {
      if (value == null) dart.nullFailed(I[166], 7118, 25, "value");
      this[S$.$setProperty]("grid-column", value, "");
    }
    get gridColumnEnd() {
      return this[S$.$getPropertyValue]("grid-column-end");
    }
    set gridColumnEnd(value) {
      if (value == null) dart.nullFailed(I[166], 7126, 28, "value");
      this[S$.$setProperty]("grid-column-end", value, "");
    }
    get gridColumnStart() {
      return this[S$.$getPropertyValue]("grid-column-start");
    }
    set gridColumnStart(value) {
      if (value == null) dart.nullFailed(I[166], 7134, 30, "value");
      this[S$.$setProperty]("grid-column-start", value, "");
    }
    get gridRow() {
      return this[S$.$getPropertyValue]("grid-row");
    }
    set gridRow(value) {
      if (value == null) dart.nullFailed(I[166], 7142, 22, "value");
      this[S$.$setProperty]("grid-row", value, "");
    }
    get gridRowEnd() {
      return this[S$.$getPropertyValue]("grid-row-end");
    }
    set gridRowEnd(value) {
      if (value == null) dart.nullFailed(I[166], 7150, 25, "value");
      this[S$.$setProperty]("grid-row-end", value, "");
    }
    get gridRowStart() {
      return this[S$.$getPropertyValue]("grid-row-start");
    }
    set gridRowStart(value) {
      if (value == null) dart.nullFailed(I[166], 7158, 27, "value");
      this[S$.$setProperty]("grid-row-start", value, "");
    }
    get gridTemplate() {
      return this[S$.$getPropertyValue]("grid-template");
    }
    set gridTemplate(value) {
      if (value == null) dart.nullFailed(I[166], 7166, 27, "value");
      this[S$.$setProperty]("grid-template", value, "");
    }
    get gridTemplateAreas() {
      return this[S$.$getPropertyValue]("grid-template-areas");
    }
    set gridTemplateAreas(value) {
      if (value == null) dart.nullFailed(I[166], 7174, 32, "value");
      this[S$.$setProperty]("grid-template-areas", value, "");
    }
    get gridTemplateColumns() {
      return this[S$.$getPropertyValue]("grid-template-columns");
    }
    set gridTemplateColumns(value) {
      if (value == null) dart.nullFailed(I[166], 7182, 34, "value");
      this[S$.$setProperty]("grid-template-columns", value, "");
    }
    get gridTemplateRows() {
      return this[S$.$getPropertyValue]("grid-template-rows");
    }
    set gridTemplateRows(value) {
      if (value == null) dart.nullFailed(I[166], 7190, 31, "value");
      this[S$.$setProperty]("grid-template-rows", value, "");
    }
    get height() {
      return this[S$.$getPropertyValue]("height");
    }
    set height(value) {
      if (value == null) dart.nullFailed(I[166], 7198, 21, "value");
      this[S$.$setProperty]("height", value, "");
    }
    get highlight() {
      return this[S$.$getPropertyValue]("highlight");
    }
    set highlight(value) {
      if (value == null) dart.nullFailed(I[166], 7206, 24, "value");
      this[S$.$setProperty]("highlight", value, "");
    }
    get hyphenateCharacter() {
      return this[S$.$getPropertyValue]("hyphenate-character");
    }
    set hyphenateCharacter(value) {
      if (value == null) dart.nullFailed(I[166], 7214, 33, "value");
      this[S$.$setProperty]("hyphenate-character", value, "");
    }
    get imageRendering() {
      return this[S$.$getPropertyValue]("image-rendering");
    }
    set imageRendering(value) {
      if (value == null) dart.nullFailed(I[166], 7222, 29, "value");
      this[S$.$setProperty]("image-rendering", value, "");
    }
    get isolation() {
      return this[S$.$getPropertyValue]("isolation");
    }
    set isolation(value) {
      if (value == null) dart.nullFailed(I[166], 7230, 24, "value");
      this[S$.$setProperty]("isolation", value, "");
    }
    get justifyContent() {
      return this[S$.$getPropertyValue]("justify-content");
    }
    set justifyContent(value) {
      if (value == null) dart.nullFailed(I[166], 7238, 29, "value");
      this[S$.$setProperty]("justify-content", value, "");
    }
    get justifySelf() {
      return this[S$.$getPropertyValue]("justify-self");
    }
    set justifySelf(value) {
      if (value == null) dart.nullFailed(I[166], 7246, 26, "value");
      this[S$.$setProperty]("justify-self", value, "");
    }
    get left() {
      return this[S$.$getPropertyValue]("left");
    }
    set left(value) {
      if (value == null) dart.nullFailed(I[166], 7254, 19, "value");
      this[S$.$setProperty]("left", value, "");
    }
    get letterSpacing() {
      return this[S$.$getPropertyValue]("letter-spacing");
    }
    set letterSpacing(value) {
      if (value == null) dart.nullFailed(I[166], 7262, 28, "value");
      this[S$.$setProperty]("letter-spacing", value, "");
    }
    get lineBoxContain() {
      return this[S$.$getPropertyValue]("line-box-contain");
    }
    set lineBoxContain(value) {
      if (value == null) dart.nullFailed(I[166], 7270, 29, "value");
      this[S$.$setProperty]("line-box-contain", value, "");
    }
    get lineBreak() {
      return this[S$.$getPropertyValue]("line-break");
    }
    set lineBreak(value) {
      if (value == null) dart.nullFailed(I[166], 7278, 24, "value");
      this[S$.$setProperty]("line-break", value, "");
    }
    get lineClamp() {
      return this[S$.$getPropertyValue]("line-clamp");
    }
    set lineClamp(value) {
      if (value == null) dart.nullFailed(I[166], 7286, 24, "value");
      this[S$.$setProperty]("line-clamp", value, "");
    }
    get lineHeight() {
      return this[S$.$getPropertyValue]("line-height");
    }
    set lineHeight(value) {
      if (value == null) dart.nullFailed(I[166], 7294, 25, "value");
      this[S$.$setProperty]("line-height", value, "");
    }
    get listStyle() {
      return this[S$.$getPropertyValue]("list-style");
    }
    set listStyle(value) {
      if (value == null) dart.nullFailed(I[166], 7302, 24, "value");
      this[S$.$setProperty]("list-style", value, "");
    }
    get listStyleImage() {
      return this[S$.$getPropertyValue]("list-style-image");
    }
    set listStyleImage(value) {
      if (value == null) dart.nullFailed(I[166], 7310, 29, "value");
      this[S$.$setProperty]("list-style-image", value, "");
    }
    get listStylePosition() {
      return this[S$.$getPropertyValue]("list-style-position");
    }
    set listStylePosition(value) {
      if (value == null) dart.nullFailed(I[166], 7318, 32, "value");
      this[S$.$setProperty]("list-style-position", value, "");
    }
    get listStyleType() {
      return this[S$.$getPropertyValue]("list-style-type");
    }
    set listStyleType(value) {
      if (value == null) dart.nullFailed(I[166], 7326, 28, "value");
      this[S$.$setProperty]("list-style-type", value, "");
    }
    get locale() {
      return this[S$.$getPropertyValue]("locale");
    }
    set locale(value) {
      if (value == null) dart.nullFailed(I[166], 7334, 21, "value");
      this[S$.$setProperty]("locale", value, "");
    }
    get logicalHeight() {
      return this[S$.$getPropertyValue]("logical-height");
    }
    set logicalHeight(value) {
      if (value == null) dart.nullFailed(I[166], 7342, 28, "value");
      this[S$.$setProperty]("logical-height", value, "");
    }
    get logicalWidth() {
      return this[S$.$getPropertyValue]("logical-width");
    }
    set logicalWidth(value) {
      if (value == null) dart.nullFailed(I[166], 7350, 27, "value");
      this[S$.$setProperty]("logical-width", value, "");
    }
    get margin() {
      return this[S$.$getPropertyValue]("margin");
    }
    set margin(value) {
      if (value == null) dart.nullFailed(I[166], 7358, 21, "value");
      this[S$.$setProperty]("margin", value, "");
    }
    get marginAfter() {
      return this[S$.$getPropertyValue]("margin-after");
    }
    set marginAfter(value) {
      if (value == null) dart.nullFailed(I[166], 7366, 26, "value");
      this[S$.$setProperty]("margin-after", value, "");
    }
    get marginAfterCollapse() {
      return this[S$.$getPropertyValue]("margin-after-collapse");
    }
    set marginAfterCollapse(value) {
      if (value == null) dart.nullFailed(I[166], 7374, 34, "value");
      this[S$.$setProperty]("margin-after-collapse", value, "");
    }
    get marginBefore() {
      return this[S$.$getPropertyValue]("margin-before");
    }
    set marginBefore(value) {
      if (value == null) dart.nullFailed(I[166], 7382, 27, "value");
      this[S$.$setProperty]("margin-before", value, "");
    }
    get marginBeforeCollapse() {
      return this[S$.$getPropertyValue]("margin-before-collapse");
    }
    set marginBeforeCollapse(value) {
      if (value == null) dart.nullFailed(I[166], 7390, 35, "value");
      this[S$.$setProperty]("margin-before-collapse", value, "");
    }
    get marginBottom() {
      return this[S$.$getPropertyValue]("margin-bottom");
    }
    set marginBottom(value) {
      if (value == null) dart.nullFailed(I[166], 7398, 27, "value");
      this[S$.$setProperty]("margin-bottom", value, "");
    }
    get marginBottomCollapse() {
      return this[S$.$getPropertyValue]("margin-bottom-collapse");
    }
    set marginBottomCollapse(value) {
      if (value == null) dart.nullFailed(I[166], 7406, 35, "value");
      this[S$.$setProperty]("margin-bottom-collapse", value, "");
    }
    get marginCollapse() {
      return this[S$.$getPropertyValue]("margin-collapse");
    }
    set marginCollapse(value) {
      if (value == null) dart.nullFailed(I[166], 7414, 29, "value");
      this[S$.$setProperty]("margin-collapse", value, "");
    }
    get marginEnd() {
      return this[S$.$getPropertyValue]("margin-end");
    }
    set marginEnd(value) {
      if (value == null) dart.nullFailed(I[166], 7422, 24, "value");
      this[S$.$setProperty]("margin-end", value, "");
    }
    get marginLeft() {
      return this[S$.$getPropertyValue]("margin-left");
    }
    set marginLeft(value) {
      if (value == null) dart.nullFailed(I[166], 7430, 25, "value");
      this[S$.$setProperty]("margin-left", value, "");
    }
    get marginRight() {
      return this[S$.$getPropertyValue]("margin-right");
    }
    set marginRight(value) {
      if (value == null) dart.nullFailed(I[166], 7438, 26, "value");
      this[S$.$setProperty]("margin-right", value, "");
    }
    get marginStart() {
      return this[S$.$getPropertyValue]("margin-start");
    }
    set marginStart(value) {
      if (value == null) dart.nullFailed(I[166], 7446, 26, "value");
      this[S$.$setProperty]("margin-start", value, "");
    }
    get marginTop() {
      return this[S$.$getPropertyValue]("margin-top");
    }
    set marginTop(value) {
      if (value == null) dart.nullFailed(I[166], 7454, 24, "value");
      this[S$.$setProperty]("margin-top", value, "");
    }
    get marginTopCollapse() {
      return this[S$.$getPropertyValue]("margin-top-collapse");
    }
    set marginTopCollapse(value) {
      if (value == null) dart.nullFailed(I[166], 7462, 32, "value");
      this[S$.$setProperty]("margin-top-collapse", value, "");
    }
    get mask() {
      return this[S$.$getPropertyValue]("mask");
    }
    set mask(value) {
      if (value == null) dart.nullFailed(I[166], 7470, 19, "value");
      this[S$.$setProperty]("mask", value, "");
    }
    get maskBoxImage() {
      return this[S$.$getPropertyValue]("mask-box-image");
    }
    set maskBoxImage(value) {
      if (value == null) dart.nullFailed(I[166], 7478, 27, "value");
      this[S$.$setProperty]("mask-box-image", value, "");
    }
    get maskBoxImageOutset() {
      return this[S$.$getPropertyValue]("mask-box-image-outset");
    }
    set maskBoxImageOutset(value) {
      if (value == null) dart.nullFailed(I[166], 7486, 33, "value");
      this[S$.$setProperty]("mask-box-image-outset", value, "");
    }
    get maskBoxImageRepeat() {
      return this[S$.$getPropertyValue]("mask-box-image-repeat");
    }
    set maskBoxImageRepeat(value) {
      if (value == null) dart.nullFailed(I[166], 7494, 33, "value");
      this[S$.$setProperty]("mask-box-image-repeat", value, "");
    }
    get maskBoxImageSlice() {
      return this[S$.$getPropertyValue]("mask-box-image-slice");
    }
    set maskBoxImageSlice(value) {
      if (value == null) dart.nullFailed(I[166], 7502, 32, "value");
      this[S$.$setProperty]("mask-box-image-slice", value, "");
    }
    get maskBoxImageSource() {
      return this[S$.$getPropertyValue]("mask-box-image-source");
    }
    set maskBoxImageSource(value) {
      if (value == null) dart.nullFailed(I[166], 7510, 33, "value");
      this[S$.$setProperty]("mask-box-image-source", value, "");
    }
    get maskBoxImageWidth() {
      return this[S$.$getPropertyValue]("mask-box-image-width");
    }
    set maskBoxImageWidth(value) {
      if (value == null) dart.nullFailed(I[166], 7518, 32, "value");
      this[S$.$setProperty]("mask-box-image-width", value, "");
    }
    get maskClip() {
      return this[S$.$getPropertyValue]("mask-clip");
    }
    set maskClip(value) {
      if (value == null) dart.nullFailed(I[166], 7526, 23, "value");
      this[S$.$setProperty]("mask-clip", value, "");
    }
    get maskComposite() {
      return this[S$.$getPropertyValue]("mask-composite");
    }
    set maskComposite(value) {
      if (value == null) dart.nullFailed(I[166], 7534, 28, "value");
      this[S$.$setProperty]("mask-composite", value, "");
    }
    get maskImage() {
      return this[S$.$getPropertyValue]("mask-image");
    }
    set maskImage(value) {
      if (value == null) dart.nullFailed(I[166], 7542, 24, "value");
      this[S$.$setProperty]("mask-image", value, "");
    }
    get maskOrigin() {
      return this[S$.$getPropertyValue]("mask-origin");
    }
    set maskOrigin(value) {
      if (value == null) dart.nullFailed(I[166], 7550, 25, "value");
      this[S$.$setProperty]("mask-origin", value, "");
    }
    get maskPosition() {
      return this[S$.$getPropertyValue]("mask-position");
    }
    set maskPosition(value) {
      if (value == null) dart.nullFailed(I[166], 7558, 27, "value");
      this[S$.$setProperty]("mask-position", value, "");
    }
    get maskPositionX() {
      return this[S$.$getPropertyValue]("mask-position-x");
    }
    set maskPositionX(value) {
      if (value == null) dart.nullFailed(I[166], 7566, 28, "value");
      this[S$.$setProperty]("mask-position-x", value, "");
    }
    get maskPositionY() {
      return this[S$.$getPropertyValue]("mask-position-y");
    }
    set maskPositionY(value) {
      if (value == null) dart.nullFailed(I[166], 7574, 28, "value");
      this[S$.$setProperty]("mask-position-y", value, "");
    }
    get maskRepeat() {
      return this[S$.$getPropertyValue]("mask-repeat");
    }
    set maskRepeat(value) {
      if (value == null) dart.nullFailed(I[166], 7582, 25, "value");
      this[S$.$setProperty]("mask-repeat", value, "");
    }
    get maskRepeatX() {
      return this[S$.$getPropertyValue]("mask-repeat-x");
    }
    set maskRepeatX(value) {
      if (value == null) dart.nullFailed(I[166], 7590, 26, "value");
      this[S$.$setProperty]("mask-repeat-x", value, "");
    }
    get maskRepeatY() {
      return this[S$.$getPropertyValue]("mask-repeat-y");
    }
    set maskRepeatY(value) {
      if (value == null) dart.nullFailed(I[166], 7598, 26, "value");
      this[S$.$setProperty]("mask-repeat-y", value, "");
    }
    get maskSize() {
      return this[S$.$getPropertyValue]("mask-size");
    }
    set maskSize(value) {
      if (value == null) dart.nullFailed(I[166], 7606, 23, "value");
      this[S$.$setProperty]("mask-size", value, "");
    }
    get maskSourceType() {
      return this[S$.$getPropertyValue]("mask-source-type");
    }
    set maskSourceType(value) {
      if (value == null) dart.nullFailed(I[166], 7614, 29, "value");
      this[S$.$setProperty]("mask-source-type", value, "");
    }
    get maxHeight() {
      return this[S$.$getPropertyValue]("max-height");
    }
    set maxHeight(value) {
      if (value == null) dart.nullFailed(I[166], 7622, 24, "value");
      this[S$.$setProperty]("max-height", value, "");
    }
    get maxLogicalHeight() {
      return this[S$.$getPropertyValue]("max-logical-height");
    }
    set maxLogicalHeight(value) {
      if (value == null) dart.nullFailed(I[166], 7630, 31, "value");
      this[S$.$setProperty]("max-logical-height", value, "");
    }
    get maxLogicalWidth() {
      return this[S$.$getPropertyValue]("max-logical-width");
    }
    set maxLogicalWidth(value) {
      if (value == null) dart.nullFailed(I[166], 7638, 30, "value");
      this[S$.$setProperty]("max-logical-width", value, "");
    }
    get maxWidth() {
      return this[S$.$getPropertyValue]("max-width");
    }
    set maxWidth(value) {
      if (value == null) dart.nullFailed(I[166], 7646, 23, "value");
      this[S$.$setProperty]("max-width", value, "");
    }
    get maxZoom() {
      return this[S$.$getPropertyValue]("max-zoom");
    }
    set maxZoom(value) {
      if (value == null) dart.nullFailed(I[166], 7654, 22, "value");
      this[S$.$setProperty]("max-zoom", value, "");
    }
    get minHeight() {
      return this[S$.$getPropertyValue]("min-height");
    }
    set minHeight(value) {
      if (value == null) dart.nullFailed(I[166], 7662, 24, "value");
      this[S$.$setProperty]("min-height", value, "");
    }
    get minLogicalHeight() {
      return this[S$.$getPropertyValue]("min-logical-height");
    }
    set minLogicalHeight(value) {
      if (value == null) dart.nullFailed(I[166], 7670, 31, "value");
      this[S$.$setProperty]("min-logical-height", value, "");
    }
    get minLogicalWidth() {
      return this[S$.$getPropertyValue]("min-logical-width");
    }
    set minLogicalWidth(value) {
      if (value == null) dart.nullFailed(I[166], 7678, 30, "value");
      this[S$.$setProperty]("min-logical-width", value, "");
    }
    get minWidth() {
      return this[S$.$getPropertyValue]("min-width");
    }
    set minWidth(value) {
      if (value == null) dart.nullFailed(I[166], 7686, 23, "value");
      this[S$.$setProperty]("min-width", value, "");
    }
    get minZoom() {
      return this[S$.$getPropertyValue]("min-zoom");
    }
    set minZoom(value) {
      if (value == null) dart.nullFailed(I[166], 7694, 22, "value");
      this[S$.$setProperty]("min-zoom", value, "");
    }
    get mixBlendMode() {
      return this[S$.$getPropertyValue]("mix-blend-mode");
    }
    set mixBlendMode(value) {
      if (value == null) dart.nullFailed(I[166], 7702, 27, "value");
      this[S$.$setProperty]("mix-blend-mode", value, "");
    }
    get objectFit() {
      return this[S$.$getPropertyValue]("object-fit");
    }
    set objectFit(value) {
      if (value == null) dart.nullFailed(I[166], 7710, 24, "value");
      this[S$.$setProperty]("object-fit", value, "");
    }
    get objectPosition() {
      return this[S$.$getPropertyValue]("object-position");
    }
    set objectPosition(value) {
      if (value == null) dart.nullFailed(I[166], 7718, 29, "value");
      this[S$.$setProperty]("object-position", value, "");
    }
    get opacity() {
      return this[S$.$getPropertyValue]("opacity");
    }
    set opacity(value) {
      if (value == null) dart.nullFailed(I[166], 7726, 22, "value");
      this[S$.$setProperty]("opacity", value, "");
    }
    get order() {
      return this[S$.$getPropertyValue]("order");
    }
    set order(value) {
      if (value == null) dart.nullFailed(I[166], 7734, 20, "value");
      this[S$.$setProperty]("order", value, "");
    }
    get orientation() {
      return this[S$.$getPropertyValue]("orientation");
    }
    set orientation(value) {
      if (value == null) dart.nullFailed(I[166], 7742, 26, "value");
      this[S$.$setProperty]("orientation", value, "");
    }
    get orphans() {
      return this[S$.$getPropertyValue]("orphans");
    }
    set orphans(value) {
      if (value == null) dart.nullFailed(I[166], 7750, 22, "value");
      this[S$.$setProperty]("orphans", value, "");
    }
    get outline() {
      return this[S$.$getPropertyValue]("outline");
    }
    set outline(value) {
      if (value == null) dart.nullFailed(I[166], 7758, 22, "value");
      this[S$.$setProperty]("outline", value, "");
    }
    get outlineColor() {
      return this[S$.$getPropertyValue]("outline-color");
    }
    set outlineColor(value) {
      if (value == null) dart.nullFailed(I[166], 7766, 27, "value");
      this[S$.$setProperty]("outline-color", value, "");
    }
    get outlineOffset() {
      return this[S$.$getPropertyValue]("outline-offset");
    }
    set outlineOffset(value) {
      if (value == null) dart.nullFailed(I[166], 7774, 28, "value");
      this[S$.$setProperty]("outline-offset", value, "");
    }
    get outlineStyle() {
      return this[S$.$getPropertyValue]("outline-style");
    }
    set outlineStyle(value) {
      if (value == null) dart.nullFailed(I[166], 7782, 27, "value");
      this[S$.$setProperty]("outline-style", value, "");
    }
    get outlineWidth() {
      return this[S$.$getPropertyValue]("outline-width");
    }
    set outlineWidth(value) {
      if (value == null) dart.nullFailed(I[166], 7790, 27, "value");
      this[S$.$setProperty]("outline-width", value, "");
    }
    get overflow() {
      return this[S$.$getPropertyValue]("overflow");
    }
    set overflow(value) {
      if (value == null) dart.nullFailed(I[166], 7798, 23, "value");
      this[S$.$setProperty]("overflow", value, "");
    }
    get overflowWrap() {
      return this[S$.$getPropertyValue]("overflow-wrap");
    }
    set overflowWrap(value) {
      if (value == null) dart.nullFailed(I[166], 7806, 27, "value");
      this[S$.$setProperty]("overflow-wrap", value, "");
    }
    get overflowX() {
      return this[S$.$getPropertyValue]("overflow-x");
    }
    set overflowX(value) {
      if (value == null) dart.nullFailed(I[166], 7814, 24, "value");
      this[S$.$setProperty]("overflow-x", value, "");
    }
    get overflowY() {
      return this[S$.$getPropertyValue]("overflow-y");
    }
    set overflowY(value) {
      if (value == null) dart.nullFailed(I[166], 7822, 24, "value");
      this[S$.$setProperty]("overflow-y", value, "");
    }
    get padding() {
      return this[S$.$getPropertyValue]("padding");
    }
    set padding(value) {
      if (value == null) dart.nullFailed(I[166], 7830, 22, "value");
      this[S$.$setProperty]("padding", value, "");
    }
    get paddingAfter() {
      return this[S$.$getPropertyValue]("padding-after");
    }
    set paddingAfter(value) {
      if (value == null) dart.nullFailed(I[166], 7838, 27, "value");
      this[S$.$setProperty]("padding-after", value, "");
    }
    get paddingBefore() {
      return this[S$.$getPropertyValue]("padding-before");
    }
    set paddingBefore(value) {
      if (value == null) dart.nullFailed(I[166], 7846, 28, "value");
      this[S$.$setProperty]("padding-before", value, "");
    }
    get paddingBottom() {
      return this[S$.$getPropertyValue]("padding-bottom");
    }
    set paddingBottom(value) {
      if (value == null) dart.nullFailed(I[166], 7854, 28, "value");
      this[S$.$setProperty]("padding-bottom", value, "");
    }
    get paddingEnd() {
      return this[S$.$getPropertyValue]("padding-end");
    }
    set paddingEnd(value) {
      if (value == null) dart.nullFailed(I[166], 7862, 25, "value");
      this[S$.$setProperty]("padding-end", value, "");
    }
    get paddingLeft() {
      return this[S$.$getPropertyValue]("padding-left");
    }
    set paddingLeft(value) {
      if (value == null) dart.nullFailed(I[166], 7870, 26, "value");
      this[S$.$setProperty]("padding-left", value, "");
    }
    get paddingRight() {
      return this[S$.$getPropertyValue]("padding-right");
    }
    set paddingRight(value) {
      if (value == null) dart.nullFailed(I[166], 7878, 27, "value");
      this[S$.$setProperty]("padding-right", value, "");
    }
    get paddingStart() {
      return this[S$.$getPropertyValue]("padding-start");
    }
    set paddingStart(value) {
      if (value == null) dart.nullFailed(I[166], 7886, 27, "value");
      this[S$.$setProperty]("padding-start", value, "");
    }
    get paddingTop() {
      return this[S$.$getPropertyValue]("padding-top");
    }
    set paddingTop(value) {
      if (value == null) dart.nullFailed(I[166], 7894, 25, "value");
      this[S$.$setProperty]("padding-top", value, "");
    }
    get page() {
      return this[S$.$getPropertyValue]("page");
    }
    set page(value) {
      if (value == null) dart.nullFailed(I[166], 7902, 19, "value");
      this[S$.$setProperty]("page", value, "");
    }
    get pageBreakAfter() {
      return this[S$.$getPropertyValue]("page-break-after");
    }
    set pageBreakAfter(value) {
      if (value == null) dart.nullFailed(I[166], 7910, 29, "value");
      this[S$.$setProperty]("page-break-after", value, "");
    }
    get pageBreakBefore() {
      return this[S$.$getPropertyValue]("page-break-before");
    }
    set pageBreakBefore(value) {
      if (value == null) dart.nullFailed(I[166], 7918, 30, "value");
      this[S$.$setProperty]("page-break-before", value, "");
    }
    get pageBreakInside() {
      return this[S$.$getPropertyValue]("page-break-inside");
    }
    set pageBreakInside(value) {
      if (value == null) dart.nullFailed(I[166], 7926, 30, "value");
      this[S$.$setProperty]("page-break-inside", value, "");
    }
    get perspective() {
      return this[S$.$getPropertyValue]("perspective");
    }
    set perspective(value) {
      if (value == null) dart.nullFailed(I[166], 7934, 26, "value");
      this[S$.$setProperty]("perspective", value, "");
    }
    get perspectiveOrigin() {
      return this[S$.$getPropertyValue]("perspective-origin");
    }
    set perspectiveOrigin(value) {
      if (value == null) dart.nullFailed(I[166], 7942, 32, "value");
      this[S$.$setProperty]("perspective-origin", value, "");
    }
    get perspectiveOriginX() {
      return this[S$.$getPropertyValue]("perspective-origin-x");
    }
    set perspectiveOriginX(value) {
      if (value == null) dart.nullFailed(I[166], 7950, 33, "value");
      this[S$.$setProperty]("perspective-origin-x", value, "");
    }
    get perspectiveOriginY() {
      return this[S$.$getPropertyValue]("perspective-origin-y");
    }
    set perspectiveOriginY(value) {
      if (value == null) dart.nullFailed(I[166], 7958, 33, "value");
      this[S$.$setProperty]("perspective-origin-y", value, "");
    }
    get pointerEvents() {
      return this[S$.$getPropertyValue]("pointer-events");
    }
    set pointerEvents(value) {
      if (value == null) dart.nullFailed(I[166], 7966, 28, "value");
      this[S$.$setProperty]("pointer-events", value, "");
    }
    get position() {
      return this[S$.$getPropertyValue]("position");
    }
    set position(value) {
      if (value == null) dart.nullFailed(I[166], 7974, 23, "value");
      this[S$.$setProperty]("position", value, "");
    }
    get printColorAdjust() {
      return this[S$.$getPropertyValue]("print-color-adjust");
    }
    set printColorAdjust(value) {
      if (value == null) dart.nullFailed(I[166], 7982, 31, "value");
      this[S$.$setProperty]("print-color-adjust", value, "");
    }
    get quotes() {
      return this[S$.$getPropertyValue]("quotes");
    }
    set quotes(value) {
      if (value == null) dart.nullFailed(I[166], 7990, 21, "value");
      this[S$.$setProperty]("quotes", value, "");
    }
    get resize() {
      return this[S$.$getPropertyValue]("resize");
    }
    set resize(value) {
      if (value == null) dart.nullFailed(I[166], 7998, 21, "value");
      this[S$.$setProperty]("resize", value, "");
    }
    get right() {
      return this[S$.$getPropertyValue]("right");
    }
    set right(value) {
      if (value == null) dart.nullFailed(I[166], 8006, 20, "value");
      this[S$.$setProperty]("right", value, "");
    }
    get rowGap() {
      return this[S$.$getPropertyValue]("row-gap");
    }
    set rowGap(value) {
      if (value == null) dart.nullFailed(I[166], 8014, 21, "value");
      this[S$.$setProperty]("row-gap", value, "");
    }
    get rtlOrdering() {
      return this[S$.$getPropertyValue]("rtl-ordering");
    }
    set rtlOrdering(value) {
      if (value == null) dart.nullFailed(I[166], 8022, 26, "value");
      this[S$.$setProperty]("rtl-ordering", value, "");
    }
    get rubyPosition() {
      return this[S$.$getPropertyValue]("ruby-position");
    }
    set rubyPosition(value) {
      if (value == null) dart.nullFailed(I[166], 8030, 27, "value");
      this[S$.$setProperty]("ruby-position", value, "");
    }
    get scrollBehavior() {
      return this[S$.$getPropertyValue]("scroll-behavior");
    }
    set scrollBehavior(value) {
      if (value == null) dart.nullFailed(I[166], 8038, 29, "value");
      this[S$.$setProperty]("scroll-behavior", value, "");
    }
    get shapeImageThreshold() {
      return this[S$.$getPropertyValue]("shape-image-threshold");
    }
    set shapeImageThreshold(value) {
      if (value == null) dart.nullFailed(I[166], 8046, 34, "value");
      this[S$.$setProperty]("shape-image-threshold", value, "");
    }
    get shapeMargin() {
      return this[S$.$getPropertyValue]("shape-margin");
    }
    set shapeMargin(value) {
      if (value == null) dart.nullFailed(I[166], 8054, 26, "value");
      this[S$.$setProperty]("shape-margin", value, "");
    }
    get shapeOutside() {
      return this[S$.$getPropertyValue]("shape-outside");
    }
    set shapeOutside(value) {
      if (value == null) dart.nullFailed(I[166], 8062, 27, "value");
      this[S$.$setProperty]("shape-outside", value, "");
    }
    get size() {
      return this[S$.$getPropertyValue]("size");
    }
    set size(value) {
      if (value == null) dart.nullFailed(I[166], 8070, 19, "value");
      this[S$.$setProperty]("size", value, "");
    }
    get speak() {
      return this[S$.$getPropertyValue]("speak");
    }
    set speak(value) {
      if (value == null) dart.nullFailed(I[166], 8078, 20, "value");
      this[S$.$setProperty]("speak", value, "");
    }
    get src() {
      return this[S$.$getPropertyValue]("src");
    }
    set src(value) {
      if (value == null) dart.nullFailed(I[166], 8086, 18, "value");
      this[S$.$setProperty]("src", value, "");
    }
    get tabSize() {
      return this[S$.$getPropertyValue]("tab-size");
    }
    set tabSize(value) {
      if (value == null) dart.nullFailed(I[166], 8094, 22, "value");
      this[S$.$setProperty]("tab-size", value, "");
    }
    get tableLayout() {
      return this[S$.$getPropertyValue]("table-layout");
    }
    set tableLayout(value) {
      if (value == null) dart.nullFailed(I[166], 8102, 26, "value");
      this[S$.$setProperty]("table-layout", value, "");
    }
    get tapHighlightColor() {
      return this[S$.$getPropertyValue]("tap-highlight-color");
    }
    set tapHighlightColor(value) {
      if (value == null) dart.nullFailed(I[166], 8110, 32, "value");
      this[S$.$setProperty]("tap-highlight-color", value, "");
    }
    get textAlign() {
      return this[S$.$getPropertyValue]("text-align");
    }
    set textAlign(value) {
      if (value == null) dart.nullFailed(I[166], 8118, 24, "value");
      this[S$.$setProperty]("text-align", value, "");
    }
    get textAlignLast() {
      return this[S$.$getPropertyValue]("text-align-last");
    }
    set textAlignLast(value) {
      if (value == null) dart.nullFailed(I[166], 8126, 28, "value");
      this[S$.$setProperty]("text-align-last", value, "");
    }
    get textCombine() {
      return this[S$.$getPropertyValue]("text-combine");
    }
    set textCombine(value) {
      if (value == null) dart.nullFailed(I[166], 8134, 26, "value");
      this[S$.$setProperty]("text-combine", value, "");
    }
    get textDecoration() {
      return this[S$.$getPropertyValue]("text-decoration");
    }
    set textDecoration(value) {
      if (value == null) dart.nullFailed(I[166], 8142, 29, "value");
      this[S$.$setProperty]("text-decoration", value, "");
    }
    get textDecorationColor() {
      return this[S$.$getPropertyValue]("text-decoration-color");
    }
    set textDecorationColor(value) {
      if (value == null) dart.nullFailed(I[166], 8150, 34, "value");
      this[S$.$setProperty]("text-decoration-color", value, "");
    }
    get textDecorationLine() {
      return this[S$.$getPropertyValue]("text-decoration-line");
    }
    set textDecorationLine(value) {
      if (value == null) dart.nullFailed(I[166], 8158, 33, "value");
      this[S$.$setProperty]("text-decoration-line", value, "");
    }
    get textDecorationStyle() {
      return this[S$.$getPropertyValue]("text-decoration-style");
    }
    set textDecorationStyle(value) {
      if (value == null) dart.nullFailed(I[166], 8166, 34, "value");
      this[S$.$setProperty]("text-decoration-style", value, "");
    }
    get textDecorationsInEffect() {
      return this[S$.$getPropertyValue]("text-decorations-in-effect");
    }
    set textDecorationsInEffect(value) {
      if (value == null) dart.nullFailed(I[166], 8175, 38, "value");
      this[S$.$setProperty]("text-decorations-in-effect", value, "");
    }
    get textEmphasis() {
      return this[S$.$getPropertyValue]("text-emphasis");
    }
    set textEmphasis(value) {
      if (value == null) dart.nullFailed(I[166], 8183, 27, "value");
      this[S$.$setProperty]("text-emphasis", value, "");
    }
    get textEmphasisColor() {
      return this[S$.$getPropertyValue]("text-emphasis-color");
    }
    set textEmphasisColor(value) {
      if (value == null) dart.nullFailed(I[166], 8191, 32, "value");
      this[S$.$setProperty]("text-emphasis-color", value, "");
    }
    get textEmphasisPosition() {
      return this[S$.$getPropertyValue]("text-emphasis-position");
    }
    set textEmphasisPosition(value) {
      if (value == null) dart.nullFailed(I[166], 8199, 35, "value");
      this[S$.$setProperty]("text-emphasis-position", value, "");
    }
    get textEmphasisStyle() {
      return this[S$.$getPropertyValue]("text-emphasis-style");
    }
    set textEmphasisStyle(value) {
      if (value == null) dart.nullFailed(I[166], 8207, 32, "value");
      this[S$.$setProperty]("text-emphasis-style", value, "");
    }
    get textFillColor() {
      return this[S$.$getPropertyValue]("text-fill-color");
    }
    set textFillColor(value) {
      if (value == null) dart.nullFailed(I[166], 8215, 28, "value");
      this[S$.$setProperty]("text-fill-color", value, "");
    }
    get textIndent() {
      return this[S$.$getPropertyValue]("text-indent");
    }
    set textIndent(value) {
      if (value == null) dart.nullFailed(I[166], 8223, 25, "value");
      this[S$.$setProperty]("text-indent", value, "");
    }
    get textJustify() {
      return this[S$.$getPropertyValue]("text-justify");
    }
    set textJustify(value) {
      if (value == null) dart.nullFailed(I[166], 8231, 26, "value");
      this[S$.$setProperty]("text-justify", value, "");
    }
    get textLineThroughColor() {
      return this[S$.$getPropertyValue]("text-line-through-color");
    }
    set textLineThroughColor(value) {
      if (value == null) dart.nullFailed(I[166], 8240, 35, "value");
      this[S$.$setProperty]("text-line-through-color", value, "");
    }
    get textLineThroughMode() {
      return this[S$.$getPropertyValue]("text-line-through-mode");
    }
    set textLineThroughMode(value) {
      if (value == null) dart.nullFailed(I[166], 8248, 34, "value");
      this[S$.$setProperty]("text-line-through-mode", value, "");
    }
    get textLineThroughStyle() {
      return this[S$.$getPropertyValue]("text-line-through-style");
    }
    set textLineThroughStyle(value) {
      if (value == null) dart.nullFailed(I[166], 8257, 35, "value");
      this[S$.$setProperty]("text-line-through-style", value, "");
    }
    get textLineThroughWidth() {
      return this[S$.$getPropertyValue]("text-line-through-width");
    }
    set textLineThroughWidth(value) {
      if (value == null) dart.nullFailed(I[166], 8266, 35, "value");
      this[S$.$setProperty]("text-line-through-width", value, "");
    }
    get textOrientation() {
      return this[S$.$getPropertyValue]("text-orientation");
    }
    set textOrientation(value) {
      if (value == null) dart.nullFailed(I[166], 8274, 30, "value");
      this[S$.$setProperty]("text-orientation", value, "");
    }
    get textOverflow() {
      return this[S$.$getPropertyValue]("text-overflow");
    }
    set textOverflow(value) {
      if (value == null) dart.nullFailed(I[166], 8282, 27, "value");
      this[S$.$setProperty]("text-overflow", value, "");
    }
    get textOverlineColor() {
      return this[S$.$getPropertyValue]("text-overline-color");
    }
    set textOverlineColor(value) {
      if (value == null) dart.nullFailed(I[166], 8290, 32, "value");
      this[S$.$setProperty]("text-overline-color", value, "");
    }
    get textOverlineMode() {
      return this[S$.$getPropertyValue]("text-overline-mode");
    }
    set textOverlineMode(value) {
      if (value == null) dart.nullFailed(I[166], 8298, 31, "value");
      this[S$.$setProperty]("text-overline-mode", value, "");
    }
    get textOverlineStyle() {
      return this[S$.$getPropertyValue]("text-overline-style");
    }
    set textOverlineStyle(value) {
      if (value == null) dart.nullFailed(I[166], 8306, 32, "value");
      this[S$.$setProperty]("text-overline-style", value, "");
    }
    get textOverlineWidth() {
      return this[S$.$getPropertyValue]("text-overline-width");
    }
    set textOverlineWidth(value) {
      if (value == null) dart.nullFailed(I[166], 8314, 32, "value");
      this[S$.$setProperty]("text-overline-width", value, "");
    }
    get textRendering() {
      return this[S$.$getPropertyValue]("text-rendering");
    }
    set textRendering(value) {
      if (value == null) dart.nullFailed(I[166], 8322, 28, "value");
      this[S$.$setProperty]("text-rendering", value, "");
    }
    get textSecurity() {
      return this[S$.$getPropertyValue]("text-security");
    }
    set textSecurity(value) {
      if (value == null) dart.nullFailed(I[166], 8330, 27, "value");
      this[S$.$setProperty]("text-security", value, "");
    }
    get textShadow() {
      return this[S$.$getPropertyValue]("text-shadow");
    }
    set textShadow(value) {
      if (value == null) dart.nullFailed(I[166], 8338, 25, "value");
      this[S$.$setProperty]("text-shadow", value, "");
    }
    get textStroke() {
      return this[S$.$getPropertyValue]("text-stroke");
    }
    set textStroke(value) {
      if (value == null) dart.nullFailed(I[166], 8346, 25, "value");
      this[S$.$setProperty]("text-stroke", value, "");
    }
    get textStrokeColor() {
      return this[S$.$getPropertyValue]("text-stroke-color");
    }
    set textStrokeColor(value) {
      if (value == null) dart.nullFailed(I[166], 8354, 30, "value");
      this[S$.$setProperty]("text-stroke-color", value, "");
    }
    get textStrokeWidth() {
      return this[S$.$getPropertyValue]("text-stroke-width");
    }
    set textStrokeWidth(value) {
      if (value == null) dart.nullFailed(I[166], 8362, 30, "value");
      this[S$.$setProperty]("text-stroke-width", value, "");
    }
    get textTransform() {
      return this[S$.$getPropertyValue]("text-transform");
    }
    set textTransform(value) {
      if (value == null) dart.nullFailed(I[166], 8370, 28, "value");
      this[S$.$setProperty]("text-transform", value, "");
    }
    get textUnderlineColor() {
      return this[S$.$getPropertyValue]("text-underline-color");
    }
    set textUnderlineColor(value) {
      if (value == null) dart.nullFailed(I[166], 8378, 33, "value");
      this[S$.$setProperty]("text-underline-color", value, "");
    }
    get textUnderlineMode() {
      return this[S$.$getPropertyValue]("text-underline-mode");
    }
    set textUnderlineMode(value) {
      if (value == null) dart.nullFailed(I[166], 8386, 32, "value");
      this[S$.$setProperty]("text-underline-mode", value, "");
    }
    get textUnderlinePosition() {
      return this[S$.$getPropertyValue]("text-underline-position");
    }
    set textUnderlinePosition(value) {
      if (value == null) dart.nullFailed(I[166], 8395, 36, "value");
      this[S$.$setProperty]("text-underline-position", value, "");
    }
    get textUnderlineStyle() {
      return this[S$.$getPropertyValue]("text-underline-style");
    }
    set textUnderlineStyle(value) {
      if (value == null) dart.nullFailed(I[166], 8403, 33, "value");
      this[S$.$setProperty]("text-underline-style", value, "");
    }
    get textUnderlineWidth() {
      return this[S$.$getPropertyValue]("text-underline-width");
    }
    set textUnderlineWidth(value) {
      if (value == null) dart.nullFailed(I[166], 8411, 33, "value");
      this[S$.$setProperty]("text-underline-width", value, "");
    }
    get top() {
      return this[S$.$getPropertyValue]("top");
    }
    set top(value) {
      if (value == null) dart.nullFailed(I[166], 8419, 18, "value");
      this[S$.$setProperty]("top", value, "");
    }
    get touchAction() {
      return this[S$.$getPropertyValue]("touch-action");
    }
    set touchAction(value) {
      if (value == null) dart.nullFailed(I[166], 8427, 26, "value");
      this[S$.$setProperty]("touch-action", value, "");
    }
    get touchActionDelay() {
      return this[S$.$getPropertyValue]("touch-action-delay");
    }
    set touchActionDelay(value) {
      if (value == null) dart.nullFailed(I[166], 8435, 31, "value");
      this[S$.$setProperty]("touch-action-delay", value, "");
    }
    get transform() {
      return this[S$.$getPropertyValue]("transform");
    }
    set transform(value) {
      if (value == null) dart.nullFailed(I[166], 8443, 24, "value");
      this[S$.$setProperty]("transform", value, "");
    }
    get transformOrigin() {
      return this[S$.$getPropertyValue]("transform-origin");
    }
    set transformOrigin(value) {
      if (value == null) dart.nullFailed(I[166], 8451, 30, "value");
      this[S$.$setProperty]("transform-origin", value, "");
    }
    get transformOriginX() {
      return this[S$.$getPropertyValue]("transform-origin-x");
    }
    set transformOriginX(value) {
      if (value == null) dart.nullFailed(I[166], 8459, 31, "value");
      this[S$.$setProperty]("transform-origin-x", value, "");
    }
    get transformOriginY() {
      return this[S$.$getPropertyValue]("transform-origin-y");
    }
    set transformOriginY(value) {
      if (value == null) dart.nullFailed(I[166], 8467, 31, "value");
      this[S$.$setProperty]("transform-origin-y", value, "");
    }
    get transformOriginZ() {
      return this[S$.$getPropertyValue]("transform-origin-z");
    }
    set transformOriginZ(value) {
      if (value == null) dart.nullFailed(I[166], 8475, 31, "value");
      this[S$.$setProperty]("transform-origin-z", value, "");
    }
    get transformStyle() {
      return this[S$.$getPropertyValue]("transform-style");
    }
    set transformStyle(value) {
      if (value == null) dart.nullFailed(I[166], 8483, 29, "value");
      this[S$.$setProperty]("transform-style", value, "");
    }
    get transition() {
      return this[S$.$getPropertyValue]("transition");
    }
    set transition(value) {
      if (value == null) dart.nullFailed(I[166], 8499, 25, "value");
      this[S$.$setProperty]("transition", value, "");
    }
    get transitionDelay() {
      return this[S$.$getPropertyValue]("transition-delay");
    }
    set transitionDelay(value) {
      if (value == null) dart.nullFailed(I[166], 8507, 30, "value");
      this[S$.$setProperty]("transition-delay", value, "");
    }
    get transitionDuration() {
      return this[S$.$getPropertyValue]("transition-duration");
    }
    set transitionDuration(value) {
      if (value == null) dart.nullFailed(I[166], 8515, 33, "value");
      this[S$.$setProperty]("transition-duration", value, "");
    }
    get transitionProperty() {
      return this[S$.$getPropertyValue]("transition-property");
    }
    set transitionProperty(value) {
      if (value == null) dart.nullFailed(I[166], 8523, 33, "value");
      this[S$.$setProperty]("transition-property", value, "");
    }
    get transitionTimingFunction() {
      return this[S$.$getPropertyValue]("transition-timing-function");
    }
    set transitionTimingFunction(value) {
      if (value == null) dart.nullFailed(I[166], 8532, 39, "value");
      this[S$.$setProperty]("transition-timing-function", value, "");
    }
    get unicodeBidi() {
      return this[S$.$getPropertyValue]("unicode-bidi");
    }
    set unicodeBidi(value) {
      if (value == null) dart.nullFailed(I[166], 8540, 26, "value");
      this[S$.$setProperty]("unicode-bidi", value, "");
    }
    get unicodeRange() {
      return this[S$.$getPropertyValue]("unicode-range");
    }
    set unicodeRange(value) {
      if (value == null) dart.nullFailed(I[166], 8548, 27, "value");
      this[S$.$setProperty]("unicode-range", value, "");
    }
    get userDrag() {
      return this[S$.$getPropertyValue]("user-drag");
    }
    set userDrag(value) {
      if (value == null) dart.nullFailed(I[166], 8556, 23, "value");
      this[S$.$setProperty]("user-drag", value, "");
    }
    get userModify() {
      return this[S$.$getPropertyValue]("user-modify");
    }
    set userModify(value) {
      if (value == null) dart.nullFailed(I[166], 8564, 25, "value");
      this[S$.$setProperty]("user-modify", value, "");
    }
    get userSelect() {
      return this[S$.$getPropertyValue]("user-select");
    }
    set userSelect(value) {
      if (value == null) dart.nullFailed(I[166], 8572, 25, "value");
      this[S$.$setProperty]("user-select", value, "");
    }
    get userZoom() {
      return this[S$.$getPropertyValue]("user-zoom");
    }
    set userZoom(value) {
      if (value == null) dart.nullFailed(I[166], 8580, 23, "value");
      this[S$.$setProperty]("user-zoom", value, "");
    }
    get verticalAlign() {
      return this[S$.$getPropertyValue]("vertical-align");
    }
    set verticalAlign(value) {
      if (value == null) dart.nullFailed(I[166], 8588, 28, "value");
      this[S$.$setProperty]("vertical-align", value, "");
    }
    get visibility() {
      return this[S$.$getPropertyValue]("visibility");
    }
    set visibility(value) {
      if (value == null) dart.nullFailed(I[166], 8596, 25, "value");
      this[S$.$setProperty]("visibility", value, "");
    }
    get whiteSpace() {
      return this[S$.$getPropertyValue]("white-space");
    }
    set whiteSpace(value) {
      if (value == null) dart.nullFailed(I[166], 8604, 25, "value");
      this[S$.$setProperty]("white-space", value, "");
    }
    get widows() {
      return this[S$.$getPropertyValue]("widows");
    }
    set widows(value) {
      if (value == null) dart.nullFailed(I[166], 8612, 21, "value");
      this[S$.$setProperty]("widows", value, "");
    }
    get width() {
      return this[S$.$getPropertyValue]("width");
    }
    set width(value) {
      if (value == null) dart.nullFailed(I[166], 8620, 20, "value");
      this[S$.$setProperty]("width", value, "");
    }
    get willChange() {
      return this[S$.$getPropertyValue]("will-change");
    }
    set willChange(value) {
      if (value == null) dart.nullFailed(I[166], 8628, 25, "value");
      this[S$.$setProperty]("will-change", value, "");
    }
    get wordBreak() {
      return this[S$.$getPropertyValue]("word-break");
    }
    set wordBreak(value) {
      if (value == null) dart.nullFailed(I[166], 8636, 24, "value");
      this[S$.$setProperty]("word-break", value, "");
    }
    get wordSpacing() {
      return this[S$.$getPropertyValue]("word-spacing");
    }
    set wordSpacing(value) {
      if (value == null) dart.nullFailed(I[166], 8644, 26, "value");
      this[S$.$setProperty]("word-spacing", value, "");
    }
    get wordWrap() {
      return this[S$.$getPropertyValue]("word-wrap");
    }
    set wordWrap(value) {
      if (value == null) dart.nullFailed(I[166], 8652, 23, "value");
      this[S$.$setProperty]("word-wrap", value, "");
    }
    get wrapFlow() {
      return this[S$.$getPropertyValue]("wrap-flow");
    }
    set wrapFlow(value) {
      if (value == null) dart.nullFailed(I[166], 8660, 23, "value");
      this[S$.$setProperty]("wrap-flow", value, "");
    }
    get wrapThrough() {
      return this[S$.$getPropertyValue]("wrap-through");
    }
    set wrapThrough(value) {
      if (value == null) dart.nullFailed(I[166], 8668, 26, "value");
      this[S$.$setProperty]("wrap-through", value, "");
    }
    get writingMode() {
      return this[S$.$getPropertyValue]("writing-mode");
    }
    set writingMode(value) {
      if (value == null) dart.nullFailed(I[166], 8676, 26, "value");
      this[S$.$setProperty]("writing-mode", value, "");
    }
    get zIndex() {
      return this[S$.$getPropertyValue]("z-index");
    }
    set zIndex(value) {
      if (value == null) dart.nullFailed(I[166], 8684, 21, "value");
      this[S$.$setProperty]("z-index", value, "");
    }
    get zoom() {
      return this[S$.$getPropertyValue]("zoom");
    }
    set zoom(value) {
      if (value == null) dart.nullFailed(I[166], 8692, 19, "value");
      this[S$.$setProperty]("zoom", value, "");
    }
  };
  (html$.CssStyleDeclarationBase.new = function() {
    ;
  }).prototype = html$.CssStyleDeclarationBase.prototype;
  dart.addRtiResources(html$.CssStyleDeclarationBase, ["html|CssStyleDeclarationBase"]);
  dart.setGetterSignature(html$.CssStyleDeclarationBase, () => dart.global.Object.setPrototypeOf({
    alignContent: T$.String(),
    [S$0.$alignContent]: T$.String(),
    alignItems: T$.String(),
    [S$0.$alignItems]: T$.String(),
    alignSelf: T$.String(),
    [S$0.$alignSelf]: T$.String(),
    animation: T$.String(),
    [S$0.$animation]: T$.String(),
    animationDelay: T$.String(),
    [S$0.$animationDelay]: T$.String(),
    animationDirection: T$.String(),
    [S$0.$animationDirection]: T$.String(),
    animationDuration: T$.String(),
    [S$0.$animationDuration]: T$.String(),
    animationFillMode: T$.String(),
    [S$0.$animationFillMode]: T$.String(),
    animationIterationCount: T$.String(),
    [S$0.$animationIterationCount]: T$.String(),
    animationName: T$.String(),
    [S$.$animationName]: T$.String(),
    animationPlayState: T$.String(),
    [S$0.$animationPlayState]: T$.String(),
    animationTimingFunction: T$.String(),
    [S$0.$animationTimingFunction]: T$.String(),
    appRegion: T$.String(),
    [S$0.$appRegion]: T$.String(),
    appearance: T$.String(),
    [S$0.$appearance]: T$.String(),
    aspectRatio: T$.String(),
    [S$0.$aspectRatio]: T$.String(),
    backfaceVisibility: T$.String(),
    [S$0.$backfaceVisibility]: T$.String(),
    background: T$.String(),
    [S$.$background]: T$.String(),
    backgroundAttachment: T$.String(),
    [S$.$backgroundAttachment]: T$.String(),
    backgroundBlendMode: T$.String(),
    [S$0.$backgroundBlendMode]: T$.String(),
    backgroundClip: T$.String(),
    [S$0.$backgroundClip]: T$.String(),
    backgroundColor: T$.String(),
    [S$.$backgroundColor]: T$.String(),
    backgroundComposite: T$.String(),
    [S$0.$backgroundComposite]: T$.String(),
    backgroundImage: T$.String(),
    [S$.$backgroundImage]: T$.String(),
    backgroundOrigin: T$.String(),
    [S$0.$backgroundOrigin]: T$.String(),
    backgroundPosition: T$.String(),
    [S$.$backgroundPosition]: T$.String(),
    backgroundPositionX: T$.String(),
    [S$0.$backgroundPositionX]: T$.String(),
    backgroundPositionY: T$.String(),
    [S$0.$backgroundPositionY]: T$.String(),
    backgroundRepeat: T$.String(),
    [S$.$backgroundRepeat]: T$.String(),
    backgroundRepeatX: T$.String(),
    [S$0.$backgroundRepeatX]: T$.String(),
    backgroundRepeatY: T$.String(),
    [S$0.$backgroundRepeatY]: T$.String(),
    backgroundSize: T$.String(),
    [S$0.$backgroundSize]: T$.String(),
    border: T$.String(),
    [S$.$border]: T$.String(),
    borderAfter: T$.String(),
    [S$0.$borderAfter]: T$.String(),
    borderAfterColor: T$.String(),
    [S$0.$borderAfterColor]: T$.String(),
    borderAfterStyle: T$.String(),
    [S$0.$borderAfterStyle]: T$.String(),
    borderAfterWidth: T$.String(),
    [S$0.$borderAfterWidth]: T$.String(),
    borderBefore: T$.String(),
    [S$0.$borderBefore]: T$.String(),
    borderBeforeColor: T$.String(),
    [S$0.$borderBeforeColor]: T$.String(),
    borderBeforeStyle: T$.String(),
    [S$0.$borderBeforeStyle]: T$.String(),
    borderBeforeWidth: T$.String(),
    [S$0.$borderBeforeWidth]: T$.String(),
    borderBottom: T$.String(),
    [S$.$borderBottom]: T$.String(),
    borderBottomColor: T$.String(),
    [S$.$borderBottomColor]: T$.String(),
    borderBottomLeftRadius: T$.String(),
    [S$0.$borderBottomLeftRadius]: T$.String(),
    borderBottomRightRadius: T$.String(),
    [S$0.$borderBottomRightRadius]: T$.String(),
    borderBottomStyle: T$.String(),
    [S$.$borderBottomStyle]: T$.String(),
    borderBottomWidth: T$.String(),
    [S$.$borderBottomWidth]: T$.String(),
    borderCollapse: T$.String(),
    [S$0.$borderCollapse]: T$.String(),
    borderColor: T$.String(),
    [S$0.$borderColor]: T$.String(),
    borderEnd: T$.String(),
    [S$0.$borderEnd]: T$.String(),
    borderEndColor: T$.String(),
    [S$0.$borderEndColor]: T$.String(),
    borderEndStyle: T$.String(),
    [S$0.$borderEndStyle]: T$.String(),
    borderEndWidth: T$.String(),
    [S$0.$borderEndWidth]: T$.String(),
    borderFit: T$.String(),
    [S$0.$borderFit]: T$.String(),
    borderHorizontalSpacing: T$.String(),
    [S$0.$borderHorizontalSpacing]: T$.String(),
    borderImage: T$.String(),
    [S$0.$borderImage]: T$.String(),
    borderImageOutset: T$.String(),
    [S$0.$borderImageOutset]: T$.String(),
    borderImageRepeat: T$.String(),
    [S$0.$borderImageRepeat]: T$.String(),
    borderImageSlice: T$.String(),
    [S$0.$borderImageSlice]: T$.String(),
    borderImageSource: T$.String(),
    [S$0.$borderImageSource]: T$.String(),
    borderImageWidth: T$.String(),
    [S$0.$borderImageWidth]: T$.String(),
    borderLeft: T$.String(),
    [S$0.$borderLeft]: T$.String(),
    borderLeftColor: T$.String(),
    [S$0.$borderLeftColor]: T$.String(),
    borderLeftStyle: T$.String(),
    [S$0.$borderLeftStyle]: T$.String(),
    borderLeftWidth: T$.String(),
    [S$0.$borderLeftWidth]: T$.String(),
    borderRadius: T$.String(),
    [S$0.$borderRadius]: T$.String(),
    borderRight: T$.String(),
    [S$0.$borderRight]: T$.String(),
    borderRightColor: T$.String(),
    [S$0.$borderRightColor]: T$.String(),
    borderRightStyle: T$.String(),
    [S$0.$borderRightStyle]: T$.String(),
    borderRightWidth: T$.String(),
    [S$0.$borderRightWidth]: T$.String(),
    borderSpacing: T$.String(),
    [S$0.$borderSpacing]: T$.String(),
    borderStart: T$.String(),
    [S$0.$borderStart]: T$.String(),
    borderStartColor: T$.String(),
    [S$0.$borderStartColor]: T$.String(),
    borderStartStyle: T$.String(),
    [S$0.$borderStartStyle]: T$.String(),
    borderStartWidth: T$.String(),
    [S$0.$borderStartWidth]: T$.String(),
    borderStyle: T$.String(),
    [S$0.$borderStyle]: T$.String(),
    borderTop: T$.String(),
    [S$0.$borderTop]: T$.String(),
    borderTopColor: T$.String(),
    [S$0.$borderTopColor]: T$.String(),
    borderTopLeftRadius: T$.String(),
    [S$0.$borderTopLeftRadius]: T$.String(),
    borderTopRightRadius: T$.String(),
    [S$0.$borderTopRightRadius]: T$.String(),
    borderTopStyle: T$.String(),
    [S$0.$borderTopStyle]: T$.String(),
    borderTopWidth: T$.String(),
    [S$0.$borderTopWidth]: T$.String(),
    borderVerticalSpacing: T$.String(),
    [S$0.$borderVerticalSpacing]: T$.String(),
    borderWidth: T$.String(),
    [S$0.$borderWidth]: T$.String(),
    bottom: T$.String(),
    [$bottom]: T$.String(),
    boxAlign: T$.String(),
    [S$0.$boxAlign]: T$.String(),
    boxDecorationBreak: T$.String(),
    [S$0.$boxDecorationBreak]: T$.String(),
    boxDirection: T$.String(),
    [S$0.$boxDirection]: T$.String(),
    boxFlex: T$.String(),
    [S$0.$boxFlex]: T$.String(),
    boxFlexGroup: T$.String(),
    [S$0.$boxFlexGroup]: T$.String(),
    boxLines: T$.String(),
    [S$0.$boxLines]: T$.String(),
    boxOrdinalGroup: T$.String(),
    [S$0.$boxOrdinalGroup]: T$.String(),
    boxOrient: T$.String(),
    [S$0.$boxOrient]: T$.String(),
    boxPack: T$.String(),
    [S$0.$boxPack]: T$.String(),
    boxReflect: T$.String(),
    [S$0.$boxReflect]: T$.String(),
    boxShadow: T$.String(),
    [S$0.$boxShadow]: T$.String(),
    boxSizing: T$.String(),
    [S$0.$boxSizing]: T$.String(),
    captionSide: T$.String(),
    [S$0.$captionSide]: T$.String(),
    clear: T$.String(),
    [$clear]: T$.String(),
    clip: T$.String(),
    [S$.$clip]: T$.String(),
    clipPath: T$.String(),
    [S$0.$clipPath]: T$.String(),
    color: T$.String(),
    [S$0.$color]: T$.String(),
    columnBreakAfter: T$.String(),
    [S$0.$columnBreakAfter]: T$.String(),
    columnBreakBefore: T$.String(),
    [S$0.$columnBreakBefore]: T$.String(),
    columnBreakInside: T$.String(),
    [S$0.$columnBreakInside]: T$.String(),
    columnCount: T$.String(),
    [S$0.$columnCount]: T$.String(),
    columnFill: T$.String(),
    [S$0.$columnFill]: T$.String(),
    columnGap: T$.String(),
    [S$0.$columnGap]: T$.String(),
    columnRule: T$.String(),
    [S$0.$columnRule]: T$.String(),
    columnRuleColor: T$.String(),
    [S$0.$columnRuleColor]: T$.String(),
    columnRuleStyle: T$.String(),
    [S$0.$columnRuleStyle]: T$.String(),
    columnRuleWidth: T$.String(),
    [S$0.$columnRuleWidth]: T$.String(),
    columnSpan: T$.String(),
    [S$0.$columnSpan]: T$.String(),
    columnWidth: T$.String(),
    [S$0.$columnWidth]: T$.String(),
    columns: T$.String(),
    [S$0.$columns]: T$.String(),
    content: T$.String(),
    [S$0.$content]: T$.String(),
    counterIncrement: T$.String(),
    [S$0.$counterIncrement]: T$.String(),
    counterReset: T$.String(),
    [S$0.$counterReset]: T$.String(),
    cursor: T$.String(),
    [S$0.$cursor]: T$.String(),
    direction: T$.String(),
    [S.$direction]: T$.String(),
    display: T$.String(),
    [S$0.$display]: T$.String(),
    emptyCells: T$.String(),
    [S$0.$emptyCells]: T$.String(),
    filter: T$.String(),
    [S$.$filter]: T$.String(),
    flex: T$.String(),
    [S$0.$flex]: T$.String(),
    flexBasis: T$.String(),
    [S$0.$flexBasis]: T$.String(),
    flexDirection: T$.String(),
    [S$0.$flexDirection]: T$.String(),
    flexFlow: T$.String(),
    [S$0.$flexFlow]: T$.String(),
    flexGrow: T$.String(),
    [S$0.$flexGrow]: T$.String(),
    flexShrink: T$.String(),
    [S$0.$flexShrink]: T$.String(),
    flexWrap: T$.String(),
    [S$0.$flexWrap]: T$.String(),
    float: T$.String(),
    [S$0.$float]: T$.String(),
    font: T$.String(),
    [S$.$font]: T$.String(),
    fontFamily: T$.String(),
    [S$0.$fontFamily]: T$.String(),
    fontFeatureSettings: T$.String(),
    [S$0.$fontFeatureSettings]: T$.String(),
    fontKerning: T$.String(),
    [S$0.$fontKerning]: T$.String(),
    fontSize: T$.String(),
    [S$0.$fontSize]: T$.String(),
    fontSizeDelta: T$.String(),
    [S$0.$fontSizeDelta]: T$.String(),
    fontSmoothing: T$.String(),
    [S$0.$fontSmoothing]: T$.String(),
    fontStretch: T$.String(),
    [S$0.$fontStretch]: T$.String(),
    fontStyle: T$.String(),
    [S$0.$fontStyle]: T$.String(),
    fontVariant: T$.String(),
    [S$0.$fontVariant]: T$.String(),
    fontVariantLigatures: T$.String(),
    [S$0.$fontVariantLigatures]: T$.String(),
    fontWeight: T$.String(),
    [S$0.$fontWeight]: T$.String(),
    gap: T$.String(),
    [S$0.$gap]: T$.String(),
    grid: T$.String(),
    [S$0.$grid]: T$.String(),
    gridArea: T$.String(),
    [S$0.$gridArea]: T$.String(),
    gridAutoColumns: T$.String(),
    [S$0.$gridAutoColumns]: T$.String(),
    gridAutoFlow: T$.String(),
    [S$0.$gridAutoFlow]: T$.String(),
    gridAutoRows: T$.String(),
    [S$0.$gridAutoRows]: T$.String(),
    gridColumn: T$.String(),
    [S$0.$gridColumn]: T$.String(),
    gridColumnEnd: T$.String(),
    [S$0.$gridColumnEnd]: T$.String(),
    gridColumnStart: T$.String(),
    [S$0.$gridColumnStart]: T$.String(),
    gridRow: T$.String(),
    [S$0.$gridRow]: T$.String(),
    gridRowEnd: T$.String(),
    [S$0.$gridRowEnd]: T$.String(),
    gridRowStart: T$.String(),
    [S$0.$gridRowStart]: T$.String(),
    gridTemplate: T$.String(),
    [S$0.$gridTemplate]: T$.String(),
    gridTemplateAreas: T$.String(),
    [S$0.$gridTemplateAreas]: T$.String(),
    gridTemplateColumns: T$.String(),
    [S$0.$gridTemplateColumns]: T$.String(),
    gridTemplateRows: T$.String(),
    [S$0.$gridTemplateRows]: T$.String(),
    height: T$.String(),
    [$height]: T$.String(),
    highlight: T$.String(),
    [S$0.$highlight]: T$.String(),
    hyphenateCharacter: T$.String(),
    [S$0.$hyphenateCharacter]: T$.String(),
    imageRendering: T$.String(),
    [S$0.$imageRendering]: T$.String(),
    isolation: T$.String(),
    [S$0.$isolation]: T$.String(),
    justifyContent: T$.String(),
    [S$0.$justifyContent]: T$.String(),
    justifySelf: T$.String(),
    [S$0.$justifySelf]: T$.String(),
    left: T$.String(),
    [$left]: T$.String(),
    letterSpacing: T$.String(),
    [S$0.$letterSpacing]: T$.String(),
    lineBoxContain: T$.String(),
    [S$0.$lineBoxContain]: T$.String(),
    lineBreak: T$.String(),
    [S$0.$lineBreak]: T$.String(),
    lineClamp: T$.String(),
    [S$0.$lineClamp]: T$.String(),
    lineHeight: T$.String(),
    [S$0.$lineHeight]: T$.String(),
    listStyle: T$.String(),
    [S$0.$listStyle]: T$.String(),
    listStyleImage: T$.String(),
    [S$0.$listStyleImage]: T$.String(),
    listStylePosition: T$.String(),
    [S$0.$listStylePosition]: T$.String(),
    listStyleType: T$.String(),
    [S$0.$listStyleType]: T$.String(),
    locale: T$.String(),
    [S$0.$locale]: T$.String(),
    logicalHeight: T$.String(),
    [S$0.$logicalHeight]: T$.String(),
    logicalWidth: T$.String(),
    [S$0.$logicalWidth]: T$.String(),
    margin: T$.String(),
    [S$0.$margin]: T$.String(),
    marginAfter: T$.String(),
    [S$0.$marginAfter]: T$.String(),
    marginAfterCollapse: T$.String(),
    [S$0.$marginAfterCollapse]: T$.String(),
    marginBefore: T$.String(),
    [S$0.$marginBefore]: T$.String(),
    marginBeforeCollapse: T$.String(),
    [S$0.$marginBeforeCollapse]: T$.String(),
    marginBottom: T$.String(),
    [S$0.$marginBottom]: T$.String(),
    marginBottomCollapse: T$.String(),
    [S$0.$marginBottomCollapse]: T$.String(),
    marginCollapse: T$.String(),
    [S$0.$marginCollapse]: T$.String(),
    marginEnd: T$.String(),
    [S$0.$marginEnd]: T$.String(),
    marginLeft: T$.String(),
    [S$0.$marginLeft]: T$.String(),
    marginRight: T$.String(),
    [S$0.$marginRight]: T$.String(),
    marginStart: T$.String(),
    [S$0.$marginStart]: T$.String(),
    marginTop: T$.String(),
    [S$0.$marginTop]: T$.String(),
    marginTopCollapse: T$.String(),
    [S$0.$marginTopCollapse]: T$.String(),
    mask: T$.String(),
    [S$0.$mask]: T$.String(),
    maskBoxImage: T$.String(),
    [S$0.$maskBoxImage]: T$.String(),
    maskBoxImageOutset: T$.String(),
    [S$0.$maskBoxImageOutset]: T$.String(),
    maskBoxImageRepeat: T$.String(),
    [S$0.$maskBoxImageRepeat]: T$.String(),
    maskBoxImageSlice: T$.String(),
    [S$0.$maskBoxImageSlice]: T$.String(),
    maskBoxImageSource: T$.String(),
    [S$0.$maskBoxImageSource]: T$.String(),
    maskBoxImageWidth: T$.String(),
    [S$0.$maskBoxImageWidth]: T$.String(),
    maskClip: T$.String(),
    [S$0.$maskClip]: T$.String(),
    maskComposite: T$.String(),
    [S$0.$maskComposite]: T$.String(),
    maskImage: T$.String(),
    [S$0.$maskImage]: T$.String(),
    maskOrigin: T$.String(),
    [S$0.$maskOrigin]: T$.String(),
    maskPosition: T$.String(),
    [S$0.$maskPosition]: T$.String(),
    maskPositionX: T$.String(),
    [S$0.$maskPositionX]: T$.String(),
    maskPositionY: T$.String(),
    [S$0.$maskPositionY]: T$.String(),
    maskRepeat: T$.String(),
    [S$0.$maskRepeat]: T$.String(),
    maskRepeatX: T$.String(),
    [S$0.$maskRepeatX]: T$.String(),
    maskRepeatY: T$.String(),
    [S$0.$maskRepeatY]: T$.String(),
    maskSize: T$.String(),
    [S$0.$maskSize]: T$.String(),
    maskSourceType: T$.String(),
    [S$0.$maskSourceType]: T$.String(),
    maxHeight: T$.String(),
    [S$0.$maxHeight]: T$.String(),
    maxLogicalHeight: T$.String(),
    [S$0.$maxLogicalHeight]: T$.String(),
    maxLogicalWidth: T$.String(),
    [S$0.$maxLogicalWidth]: T$.String(),
    maxWidth: T$.String(),
    [S$0.$maxWidth]: T$.String(),
    maxZoom: T$.String(),
    [S$0.$maxZoom]: T$.String(),
    minHeight: T$.String(),
    [S$0.$minHeight]: T$.String(),
    minLogicalHeight: T$.String(),
    [S$0.$minLogicalHeight]: T$.String(),
    minLogicalWidth: T$.String(),
    [S$0.$minLogicalWidth]: T$.String(),
    minWidth: T$.String(),
    [S$0.$minWidth]: T$.String(),
    minZoom: T$.String(),
    [S$0.$minZoom]: T$.String(),
    mixBlendMode: T$.String(),
    [S$0.$mixBlendMode]: T$.String(),
    objectFit: T$.String(),
    [S$0.$objectFit]: T$.String(),
    objectPosition: T$.String(),
    [S$0.$objectPosition]: T$.String(),
    opacity: T$.String(),
    [S$0.$opacity]: T$.String(),
    order: T$.String(),
    [S$0.$order]: T$.String(),
    orientation: T$.String(),
    [S$.$orientation]: T$.String(),
    orphans: T$.String(),
    [S$0.$orphans]: T$.String(),
    outline: T$.String(),
    [S$0.$outline]: T$.String(),
    outlineColor: T$.String(),
    [S$0.$outlineColor]: T$.String(),
    outlineOffset: T$.String(),
    [S$0.$outlineOffset]: T$.String(),
    outlineStyle: T$.String(),
    [S$0.$outlineStyle]: T$.String(),
    outlineWidth: T$.String(),
    [S$0.$outlineWidth]: T$.String(),
    overflow: T$.String(),
    [S$0.$overflow]: T$.String(),
    overflowWrap: T$.String(),
    [S$0.$overflowWrap]: T$.String(),
    overflowX: T$.String(),
    [S$0.$overflowX]: T$.String(),
    overflowY: T$.String(),
    [S$0.$overflowY]: T$.String(),
    padding: T$.String(),
    [S$0.$padding]: T$.String(),
    paddingAfter: T$.String(),
    [S$0.$paddingAfter]: T$.String(),
    paddingBefore: T$.String(),
    [S$0.$paddingBefore]: T$.String(),
    paddingBottom: T$.String(),
    [S$0.$paddingBottom]: T$.String(),
    paddingEnd: T$.String(),
    [S$0.$paddingEnd]: T$.String(),
    paddingLeft: T$.String(),
    [S$0.$paddingLeft]: T$.String(),
    paddingRight: T$.String(),
    [S$0.$paddingRight]: T$.String(),
    paddingStart: T$.String(),
    [S$0.$paddingStart]: T$.String(),
    paddingTop: T$.String(),
    [S$0.$paddingTop]: T$.String(),
    page: T$.String(),
    [S$0.$page]: T$.String(),
    pageBreakAfter: T$.String(),
    [S$0.$pageBreakAfter]: T$.String(),
    pageBreakBefore: T$.String(),
    [S$0.$pageBreakBefore]: T$.String(),
    pageBreakInside: T$.String(),
    [S$0.$pageBreakInside]: T$.String(),
    perspective: T$.String(),
    [S$0.$perspective]: T$.String(),
    perspectiveOrigin: T$.String(),
    [S$0.$perspectiveOrigin]: T$.String(),
    perspectiveOriginX: T$.String(),
    [S$0.$perspectiveOriginX]: T$.String(),
    perspectiveOriginY: T$.String(),
    [S$0.$perspectiveOriginY]: T$.String(),
    pointerEvents: T$.String(),
    [S$0.$pointerEvents]: T$.String(),
    position: T$.String(),
    [S$0.$position]: T$.String(),
    printColorAdjust: T$.String(),
    [S$0.$printColorAdjust]: T$.String(),
    quotes: T$.String(),
    [S$0.$quotes]: T$.String(),
    resize: T$.String(),
    [S$0.$resize]: T$.String(),
    right: T$.String(),
    [$right]: T$.String(),
    rowGap: T$.String(),
    [S$0.$rowGap]: T$.String(),
    rtlOrdering: T$.String(),
    [S$0.$rtlOrdering]: T$.String(),
    rubyPosition: T$.String(),
    [S$0.$rubyPosition]: T$.String(),
    scrollBehavior: T$.String(),
    [S$0.$scrollBehavior]: T$.String(),
    shapeImageThreshold: T$.String(),
    [S$0.$shapeImageThreshold]: T$.String(),
    shapeMargin: T$.String(),
    [S$0.$shapeMargin]: T$.String(),
    shapeOutside: T$.String(),
    [S$0.$shapeOutside]: T$.String(),
    size: T$.String(),
    [S$.$size]: T$.String(),
    speak: T$.String(),
    [S$0.$speak]: T$.String(),
    src: T$.String(),
    [S$.$src]: T$.String(),
    tabSize: T$.String(),
    [S$0.$tabSize]: T$.String(),
    tableLayout: T$.String(),
    [S$0.$tableLayout]: T$.String(),
    tapHighlightColor: T$.String(),
    [S$0.$tapHighlightColor]: T$.String(),
    textAlign: T$.String(),
    [S$.$textAlign]: T$.String(),
    textAlignLast: T$.String(),
    [S$0.$textAlignLast]: T$.String(),
    textCombine: T$.String(),
    [S$0.$textCombine]: T$.String(),
    textDecoration: T$.String(),
    [S$0.$textDecoration]: T$.String(),
    textDecorationColor: T$.String(),
    [S$0.$textDecorationColor]: T$.String(),
    textDecorationLine: T$.String(),
    [S$0.$textDecorationLine]: T$.String(),
    textDecorationStyle: T$.String(),
    [S$0.$textDecorationStyle]: T$.String(),
    textDecorationsInEffect: T$.String(),
    [S$0.$textDecorationsInEffect]: T$.String(),
    textEmphasis: T$.String(),
    [S$0.$textEmphasis]: T$.String(),
    textEmphasisColor: T$.String(),
    [S$0.$textEmphasisColor]: T$.String(),
    textEmphasisPosition: T$.String(),
    [S$0.$textEmphasisPosition]: T$.String(),
    textEmphasisStyle: T$.String(),
    [S$0.$textEmphasisStyle]: T$.String(),
    textFillColor: T$.String(),
    [S$0.$textFillColor]: T$.String(),
    textIndent: T$.String(),
    [S$0.$textIndent]: T$.String(),
    textJustify: T$.String(),
    [S$0.$textJustify]: T$.String(),
    textLineThroughColor: T$.String(),
    [S$0.$textLineThroughColor]: T$.String(),
    textLineThroughMode: T$.String(),
    [S$0.$textLineThroughMode]: T$.String(),
    textLineThroughStyle: T$.String(),
    [S$0.$textLineThroughStyle]: T$.String(),
    textLineThroughWidth: T$.String(),
    [S$0.$textLineThroughWidth]: T$.String(),
    textOrientation: T$.String(),
    [S$0.$textOrientation]: T$.String(),
    textOverflow: T$.String(),
    [S$0.$textOverflow]: T$.String(),
    textOverlineColor: T$.String(),
    [S$0.$textOverlineColor]: T$.String(),
    textOverlineMode: T$.String(),
    [S$0.$textOverlineMode]: T$.String(),
    textOverlineStyle: T$.String(),
    [S$0.$textOverlineStyle]: T$.String(),
    textOverlineWidth: T$.String(),
    [S$0.$textOverlineWidth]: T$.String(),
    textRendering: T$.String(),
    [S$0.$textRendering]: T$.String(),
    textSecurity: T$.String(),
    [S$0.$textSecurity]: T$.String(),
    textShadow: T$.String(),
    [S$0.$textShadow]: T$.String(),
    textStroke: T$.String(),
    [S$0.$textStroke]: T$.String(),
    textStrokeColor: T$.String(),
    [S$0.$textStrokeColor]: T$.String(),
    textStrokeWidth: T$.String(),
    [S$0.$textStrokeWidth]: T$.String(),
    textTransform: T$.String(),
    [S$0.$textTransform]: T$.String(),
    textUnderlineColor: T$.String(),
    [S$0.$textUnderlineColor]: T$.String(),
    textUnderlineMode: T$.String(),
    [S$0.$textUnderlineMode]: T$.String(),
    textUnderlinePosition: T$.String(),
    [S$0.$textUnderlinePosition]: T$.String(),
    textUnderlineStyle: T$.String(),
    [S$0.$textUnderlineStyle]: T$.String(),
    textUnderlineWidth: T$.String(),
    [S$0.$textUnderlineWidth]: T$.String(),
    top: T$.String(),
    [$top]: T$.String(),
    touchAction: T$.String(),
    [S$0.$touchAction]: T$.String(),
    touchActionDelay: T$.String(),
    [S$0.$touchActionDelay]: T$.String(),
    transform: T$.String(),
    [S$.$transform]: T$.String(),
    transformOrigin: T$.String(),
    [S$0.$transformOrigin]: T$.String(),
    transformOriginX: T$.String(),
    [S$0.$transformOriginX]: T$.String(),
    transformOriginY: T$.String(),
    [S$0.$transformOriginY]: T$.String(),
    transformOriginZ: T$.String(),
    [S$0.$transformOriginZ]: T$.String(),
    transformStyle: T$.String(),
    [S$0.$transformStyle]: T$.String(),
    transition: T$.String(),
    [S$0.$transition]: T$.String(),
    transitionDelay: T$.String(),
    [S$0.$transitionDelay]: T$.String(),
    transitionDuration: T$.String(),
    [S$0.$transitionDuration]: T$.String(),
    transitionProperty: T$.String(),
    [S$0.$transitionProperty]: T$.String(),
    transitionTimingFunction: T$.String(),
    [S$0.$transitionTimingFunction]: T$.String(),
    unicodeBidi: T$.String(),
    [S$0.$unicodeBidi]: T$.String(),
    unicodeRange: T$.String(),
    [S$0.$unicodeRange]: T$.String(),
    userDrag: T$.String(),
    [S$0.$userDrag]: T$.String(),
    userModify: T$.String(),
    [S$0.$userModify]: T$.String(),
    userSelect: T$.String(),
    [S$0.$userSelect]: T$.String(),
    userZoom: T$.String(),
    [S$0.$userZoom]: T$.String(),
    verticalAlign: T$.String(),
    [S$0.$verticalAlign]: T$.String(),
    visibility: T$.String(),
    [S$0.$visibility]: T$.String(),
    whiteSpace: T$.String(),
    [S$0.$whiteSpace]: T$.String(),
    widows: T$.String(),
    [S$0.$widows]: T$.String(),
    width: T$.String(),
    [$width]: T$.String(),
    willChange: T$.String(),
    [S$0.$willChange]: T$.String(),
    wordBreak: T$.String(),
    [S$0.$wordBreak]: T$.String(),
    wordSpacing: T$.String(),
    [S$0.$wordSpacing]: T$.String(),
    wordWrap: T$.String(),
    [S$0.$wordWrap]: T$.String(),
    wrapFlow: T$.String(),
    [S$0.$wrapFlow]: T$.String(),
    wrapThrough: T$.String(),
    [S$0.$wrapThrough]: T$.String(),
    writingMode: T$.String(),
    [S$0.$writingMode]: T$.String(),
    zIndex: T$.String(),
    [S$0.$zIndex]: T$.String(),
    zoom: T$.String(),
    [S$0.$zoom]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssStyleDeclarationBase))));
  dart.setSetterSignature(html$.CssStyleDeclarationBase, () => dart.global.Object.setPrototypeOf({
    alignContent: T$.String(),
    [S$0.$alignContent]: T$.String(),
    alignItems: T$.String(),
    [S$0.$alignItems]: T$.String(),
    alignSelf: T$.String(),
    [S$0.$alignSelf]: T$.String(),
    animation: T$.String(),
    [S$0.$animation]: T$.String(),
    animationDelay: T$.String(),
    [S$0.$animationDelay]: T$.String(),
    animationDirection: T$.String(),
    [S$0.$animationDirection]: T$.String(),
    animationDuration: T$.String(),
    [S$0.$animationDuration]: T$.String(),
    animationFillMode: T$.String(),
    [S$0.$animationFillMode]: T$.String(),
    animationIterationCount: T$.String(),
    [S$0.$animationIterationCount]: T$.String(),
    animationName: T$.String(),
    [S$.$animationName]: T$.String(),
    animationPlayState: T$.String(),
    [S$0.$animationPlayState]: T$.String(),
    animationTimingFunction: T$.String(),
    [S$0.$animationTimingFunction]: T$.String(),
    appRegion: T$.String(),
    [S$0.$appRegion]: T$.String(),
    appearance: T$.String(),
    [S$0.$appearance]: T$.String(),
    aspectRatio: T$.String(),
    [S$0.$aspectRatio]: T$.String(),
    backfaceVisibility: T$.String(),
    [S$0.$backfaceVisibility]: T$.String(),
    background: T$.String(),
    [S$.$background]: T$.String(),
    backgroundAttachment: T$.String(),
    [S$.$backgroundAttachment]: T$.String(),
    backgroundBlendMode: T$.String(),
    [S$0.$backgroundBlendMode]: T$.String(),
    backgroundClip: T$.String(),
    [S$0.$backgroundClip]: T$.String(),
    backgroundColor: T$.String(),
    [S$.$backgroundColor]: T$.String(),
    backgroundComposite: T$.String(),
    [S$0.$backgroundComposite]: T$.String(),
    backgroundImage: T$.String(),
    [S$.$backgroundImage]: T$.String(),
    backgroundOrigin: T$.String(),
    [S$0.$backgroundOrigin]: T$.String(),
    backgroundPosition: T$.String(),
    [S$.$backgroundPosition]: T$.String(),
    backgroundPositionX: T$.String(),
    [S$0.$backgroundPositionX]: T$.String(),
    backgroundPositionY: T$.String(),
    [S$0.$backgroundPositionY]: T$.String(),
    backgroundRepeat: T$.String(),
    [S$.$backgroundRepeat]: T$.String(),
    backgroundRepeatX: T$.String(),
    [S$0.$backgroundRepeatX]: T$.String(),
    backgroundRepeatY: T$.String(),
    [S$0.$backgroundRepeatY]: T$.String(),
    backgroundSize: T$.String(),
    [S$0.$backgroundSize]: T$.String(),
    border: T$.String(),
    [S$.$border]: T$.String(),
    borderAfter: T$.String(),
    [S$0.$borderAfter]: T$.String(),
    borderAfterColor: T$.String(),
    [S$0.$borderAfterColor]: T$.String(),
    borderAfterStyle: T$.String(),
    [S$0.$borderAfterStyle]: T$.String(),
    borderAfterWidth: T$.String(),
    [S$0.$borderAfterWidth]: T$.String(),
    borderBefore: T$.String(),
    [S$0.$borderBefore]: T$.String(),
    borderBeforeColor: T$.String(),
    [S$0.$borderBeforeColor]: T$.String(),
    borderBeforeStyle: T$.String(),
    [S$0.$borderBeforeStyle]: T$.String(),
    borderBeforeWidth: T$.String(),
    [S$0.$borderBeforeWidth]: T$.String(),
    borderBottom: T$.String(),
    [S$.$borderBottom]: T$.String(),
    borderBottomColor: T$.String(),
    [S$.$borderBottomColor]: T$.String(),
    borderBottomLeftRadius: T$.String(),
    [S$0.$borderBottomLeftRadius]: T$.String(),
    borderBottomRightRadius: T$.String(),
    [S$0.$borderBottomRightRadius]: T$.String(),
    borderBottomStyle: T$.String(),
    [S$.$borderBottomStyle]: T$.String(),
    borderBottomWidth: T$.String(),
    [S$.$borderBottomWidth]: T$.String(),
    borderCollapse: T$.String(),
    [S$0.$borderCollapse]: T$.String(),
    borderColor: T$.String(),
    [S$0.$borderColor]: T$.String(),
    borderEnd: T$.String(),
    [S$0.$borderEnd]: T$.String(),
    borderEndColor: T$.String(),
    [S$0.$borderEndColor]: T$.String(),
    borderEndStyle: T$.String(),
    [S$0.$borderEndStyle]: T$.String(),
    borderEndWidth: T$.String(),
    [S$0.$borderEndWidth]: T$.String(),
    borderFit: T$.String(),
    [S$0.$borderFit]: T$.String(),
    borderHorizontalSpacing: T$.String(),
    [S$0.$borderHorizontalSpacing]: T$.String(),
    borderImage: T$.String(),
    [S$0.$borderImage]: T$.String(),
    borderImageOutset: T$.String(),
    [S$0.$borderImageOutset]: T$.String(),
    borderImageRepeat: T$.String(),
    [S$0.$borderImageRepeat]: T$.String(),
    borderImageSlice: T$.String(),
    [S$0.$borderImageSlice]: T$.String(),
    borderImageSource: T$.String(),
    [S$0.$borderImageSource]: T$.String(),
    borderImageWidth: T$.String(),
    [S$0.$borderImageWidth]: T$.String(),
    borderLeft: T$.String(),
    [S$0.$borderLeft]: T$.String(),
    borderLeftColor: T$.String(),
    [S$0.$borderLeftColor]: T$.String(),
    borderLeftStyle: T$.String(),
    [S$0.$borderLeftStyle]: T$.String(),
    borderLeftWidth: T$.String(),
    [S$0.$borderLeftWidth]: T$.String(),
    borderRadius: T$.String(),
    [S$0.$borderRadius]: T$.String(),
    borderRight: T$.String(),
    [S$0.$borderRight]: T$.String(),
    borderRightColor: T$.String(),
    [S$0.$borderRightColor]: T$.String(),
    borderRightStyle: T$.String(),
    [S$0.$borderRightStyle]: T$.String(),
    borderRightWidth: T$.String(),
    [S$0.$borderRightWidth]: T$.String(),
    borderSpacing: T$.String(),
    [S$0.$borderSpacing]: T$.String(),
    borderStart: T$.String(),
    [S$0.$borderStart]: T$.String(),
    borderStartColor: T$.String(),
    [S$0.$borderStartColor]: T$.String(),
    borderStartStyle: T$.String(),
    [S$0.$borderStartStyle]: T$.String(),
    borderStartWidth: T$.String(),
    [S$0.$borderStartWidth]: T$.String(),
    borderStyle: T$.String(),
    [S$0.$borderStyle]: T$.String(),
    borderTop: T$.String(),
    [S$0.$borderTop]: T$.String(),
    borderTopColor: T$.String(),
    [S$0.$borderTopColor]: T$.String(),
    borderTopLeftRadius: T$.String(),
    [S$0.$borderTopLeftRadius]: T$.String(),
    borderTopRightRadius: T$.String(),
    [S$0.$borderTopRightRadius]: T$.String(),
    borderTopStyle: T$.String(),
    [S$0.$borderTopStyle]: T$.String(),
    borderTopWidth: T$.String(),
    [S$0.$borderTopWidth]: T$.String(),
    borderVerticalSpacing: T$.String(),
    [S$0.$borderVerticalSpacing]: T$.String(),
    borderWidth: T$.String(),
    [S$0.$borderWidth]: T$.String(),
    bottom: T$.String(),
    [$bottom]: T$.String(),
    boxAlign: T$.String(),
    [S$0.$boxAlign]: T$.String(),
    boxDecorationBreak: T$.String(),
    [S$0.$boxDecorationBreak]: T$.String(),
    boxDirection: T$.String(),
    [S$0.$boxDirection]: T$.String(),
    boxFlex: T$.String(),
    [S$0.$boxFlex]: T$.String(),
    boxFlexGroup: T$.String(),
    [S$0.$boxFlexGroup]: T$.String(),
    boxLines: T$.String(),
    [S$0.$boxLines]: T$.String(),
    boxOrdinalGroup: T$.String(),
    [S$0.$boxOrdinalGroup]: T$.String(),
    boxOrient: T$.String(),
    [S$0.$boxOrient]: T$.String(),
    boxPack: T$.String(),
    [S$0.$boxPack]: T$.String(),
    boxReflect: T$.String(),
    [S$0.$boxReflect]: T$.String(),
    boxShadow: T$.String(),
    [S$0.$boxShadow]: T$.String(),
    boxSizing: T$.String(),
    [S$0.$boxSizing]: T$.String(),
    captionSide: T$.String(),
    [S$0.$captionSide]: T$.String(),
    clear: T$.String(),
    [$clear]: T$.String(),
    clip: T$.String(),
    [S$.$clip]: T$.String(),
    clipPath: T$.String(),
    [S$0.$clipPath]: T$.String(),
    color: T$.String(),
    [S$0.$color]: T$.String(),
    columnBreakAfter: T$.String(),
    [S$0.$columnBreakAfter]: T$.String(),
    columnBreakBefore: T$.String(),
    [S$0.$columnBreakBefore]: T$.String(),
    columnBreakInside: T$.String(),
    [S$0.$columnBreakInside]: T$.String(),
    columnCount: T$.String(),
    [S$0.$columnCount]: T$.String(),
    columnFill: T$.String(),
    [S$0.$columnFill]: T$.String(),
    columnGap: T$.String(),
    [S$0.$columnGap]: T$.String(),
    columnRule: T$.String(),
    [S$0.$columnRule]: T$.String(),
    columnRuleColor: T$.String(),
    [S$0.$columnRuleColor]: T$.String(),
    columnRuleStyle: T$.String(),
    [S$0.$columnRuleStyle]: T$.String(),
    columnRuleWidth: T$.String(),
    [S$0.$columnRuleWidth]: T$.String(),
    columnSpan: T$.String(),
    [S$0.$columnSpan]: T$.String(),
    columnWidth: T$.String(),
    [S$0.$columnWidth]: T$.String(),
    columns: T$.String(),
    [S$0.$columns]: T$.String(),
    content: T$.String(),
    [S$0.$content]: T$.String(),
    counterIncrement: T$.String(),
    [S$0.$counterIncrement]: T$.String(),
    counterReset: T$.String(),
    [S$0.$counterReset]: T$.String(),
    cursor: T$.String(),
    [S$0.$cursor]: T$.String(),
    direction: T$.String(),
    [S.$direction]: T$.String(),
    display: T$.String(),
    [S$0.$display]: T$.String(),
    emptyCells: T$.String(),
    [S$0.$emptyCells]: T$.String(),
    filter: T$.String(),
    [S$.$filter]: T$.String(),
    flex: T$.String(),
    [S$0.$flex]: T$.String(),
    flexBasis: T$.String(),
    [S$0.$flexBasis]: T$.String(),
    flexDirection: T$.String(),
    [S$0.$flexDirection]: T$.String(),
    flexFlow: T$.String(),
    [S$0.$flexFlow]: T$.String(),
    flexGrow: T$.String(),
    [S$0.$flexGrow]: T$.String(),
    flexShrink: T$.String(),
    [S$0.$flexShrink]: T$.String(),
    flexWrap: T$.String(),
    [S$0.$flexWrap]: T$.String(),
    float: T$.String(),
    [S$0.$float]: T$.String(),
    font: T$.String(),
    [S$.$font]: T$.String(),
    fontFamily: T$.String(),
    [S$0.$fontFamily]: T$.String(),
    fontFeatureSettings: T$.String(),
    [S$0.$fontFeatureSettings]: T$.String(),
    fontKerning: T$.String(),
    [S$0.$fontKerning]: T$.String(),
    fontSize: T$.String(),
    [S$0.$fontSize]: T$.String(),
    fontSizeDelta: T$.String(),
    [S$0.$fontSizeDelta]: T$.String(),
    fontSmoothing: T$.String(),
    [S$0.$fontSmoothing]: T$.String(),
    fontStretch: T$.String(),
    [S$0.$fontStretch]: T$.String(),
    fontStyle: T$.String(),
    [S$0.$fontStyle]: T$.String(),
    fontVariant: T$.String(),
    [S$0.$fontVariant]: T$.String(),
    fontVariantLigatures: T$.String(),
    [S$0.$fontVariantLigatures]: T$.String(),
    fontWeight: T$.String(),
    [S$0.$fontWeight]: T$.String(),
    gap: T$.String(),
    [S$0.$gap]: T$.String(),
    grid: T$.String(),
    [S$0.$grid]: T$.String(),
    gridArea: T$.String(),
    [S$0.$gridArea]: T$.String(),
    gridAutoColumns: T$.String(),
    [S$0.$gridAutoColumns]: T$.String(),
    gridAutoFlow: T$.String(),
    [S$0.$gridAutoFlow]: T$.String(),
    gridAutoRows: T$.String(),
    [S$0.$gridAutoRows]: T$.String(),
    gridColumn: T$.String(),
    [S$0.$gridColumn]: T$.String(),
    gridColumnEnd: T$.String(),
    [S$0.$gridColumnEnd]: T$.String(),
    gridColumnStart: T$.String(),
    [S$0.$gridColumnStart]: T$.String(),
    gridRow: T$.String(),
    [S$0.$gridRow]: T$.String(),
    gridRowEnd: T$.String(),
    [S$0.$gridRowEnd]: T$.String(),
    gridRowStart: T$.String(),
    [S$0.$gridRowStart]: T$.String(),
    gridTemplate: T$.String(),
    [S$0.$gridTemplate]: T$.String(),
    gridTemplateAreas: T$.String(),
    [S$0.$gridTemplateAreas]: T$.String(),
    gridTemplateColumns: T$.String(),
    [S$0.$gridTemplateColumns]: T$.String(),
    gridTemplateRows: T$.String(),
    [S$0.$gridTemplateRows]: T$.String(),
    height: T$.String(),
    [$height]: T$.String(),
    highlight: T$.String(),
    [S$0.$highlight]: T$.String(),
    hyphenateCharacter: T$.String(),
    [S$0.$hyphenateCharacter]: T$.String(),
    imageRendering: T$.String(),
    [S$0.$imageRendering]: T$.String(),
    isolation: T$.String(),
    [S$0.$isolation]: T$.String(),
    justifyContent: T$.String(),
    [S$0.$justifyContent]: T$.String(),
    justifySelf: T$.String(),
    [S$0.$justifySelf]: T$.String(),
    left: T$.String(),
    [$left]: T$.String(),
    letterSpacing: T$.String(),
    [S$0.$letterSpacing]: T$.String(),
    lineBoxContain: T$.String(),
    [S$0.$lineBoxContain]: T$.String(),
    lineBreak: T$.String(),
    [S$0.$lineBreak]: T$.String(),
    lineClamp: T$.String(),
    [S$0.$lineClamp]: T$.String(),
    lineHeight: T$.String(),
    [S$0.$lineHeight]: T$.String(),
    listStyle: T$.String(),
    [S$0.$listStyle]: T$.String(),
    listStyleImage: T$.String(),
    [S$0.$listStyleImage]: T$.String(),
    listStylePosition: T$.String(),
    [S$0.$listStylePosition]: T$.String(),
    listStyleType: T$.String(),
    [S$0.$listStyleType]: T$.String(),
    locale: T$.String(),
    [S$0.$locale]: T$.String(),
    logicalHeight: T$.String(),
    [S$0.$logicalHeight]: T$.String(),
    logicalWidth: T$.String(),
    [S$0.$logicalWidth]: T$.String(),
    margin: T$.String(),
    [S$0.$margin]: T$.String(),
    marginAfter: T$.String(),
    [S$0.$marginAfter]: T$.String(),
    marginAfterCollapse: T$.String(),
    [S$0.$marginAfterCollapse]: T$.String(),
    marginBefore: T$.String(),
    [S$0.$marginBefore]: T$.String(),
    marginBeforeCollapse: T$.String(),
    [S$0.$marginBeforeCollapse]: T$.String(),
    marginBottom: T$.String(),
    [S$0.$marginBottom]: T$.String(),
    marginBottomCollapse: T$.String(),
    [S$0.$marginBottomCollapse]: T$.String(),
    marginCollapse: T$.String(),
    [S$0.$marginCollapse]: T$.String(),
    marginEnd: T$.String(),
    [S$0.$marginEnd]: T$.String(),
    marginLeft: T$.String(),
    [S$0.$marginLeft]: T$.String(),
    marginRight: T$.String(),
    [S$0.$marginRight]: T$.String(),
    marginStart: T$.String(),
    [S$0.$marginStart]: T$.String(),
    marginTop: T$.String(),
    [S$0.$marginTop]: T$.String(),
    marginTopCollapse: T$.String(),
    [S$0.$marginTopCollapse]: T$.String(),
    mask: T$.String(),
    [S$0.$mask]: T$.String(),
    maskBoxImage: T$.String(),
    [S$0.$maskBoxImage]: T$.String(),
    maskBoxImageOutset: T$.String(),
    [S$0.$maskBoxImageOutset]: T$.String(),
    maskBoxImageRepeat: T$.String(),
    [S$0.$maskBoxImageRepeat]: T$.String(),
    maskBoxImageSlice: T$.String(),
    [S$0.$maskBoxImageSlice]: T$.String(),
    maskBoxImageSource: T$.String(),
    [S$0.$maskBoxImageSource]: T$.String(),
    maskBoxImageWidth: T$.String(),
    [S$0.$maskBoxImageWidth]: T$.String(),
    maskClip: T$.String(),
    [S$0.$maskClip]: T$.String(),
    maskComposite: T$.String(),
    [S$0.$maskComposite]: T$.String(),
    maskImage: T$.String(),
    [S$0.$maskImage]: T$.String(),
    maskOrigin: T$.String(),
    [S$0.$maskOrigin]: T$.String(),
    maskPosition: T$.String(),
    [S$0.$maskPosition]: T$.String(),
    maskPositionX: T$.String(),
    [S$0.$maskPositionX]: T$.String(),
    maskPositionY: T$.String(),
    [S$0.$maskPositionY]: T$.String(),
    maskRepeat: T$.String(),
    [S$0.$maskRepeat]: T$.String(),
    maskRepeatX: T$.String(),
    [S$0.$maskRepeatX]: T$.String(),
    maskRepeatY: T$.String(),
    [S$0.$maskRepeatY]: T$.String(),
    maskSize: T$.String(),
    [S$0.$maskSize]: T$.String(),
    maskSourceType: T$.String(),
    [S$0.$maskSourceType]: T$.String(),
    maxHeight: T$.String(),
    [S$0.$maxHeight]: T$.String(),
    maxLogicalHeight: T$.String(),
    [S$0.$maxLogicalHeight]: T$.String(),
    maxLogicalWidth: T$.String(),
    [S$0.$maxLogicalWidth]: T$.String(),
    maxWidth: T$.String(),
    [S$0.$maxWidth]: T$.String(),
    maxZoom: T$.String(),
    [S$0.$maxZoom]: T$.String(),
    minHeight: T$.String(),
    [S$0.$minHeight]: T$.String(),
    minLogicalHeight: T$.String(),
    [S$0.$minLogicalHeight]: T$.String(),
    minLogicalWidth: T$.String(),
    [S$0.$minLogicalWidth]: T$.String(),
    minWidth: T$.String(),
    [S$0.$minWidth]: T$.String(),
    minZoom: T$.String(),
    [S$0.$minZoom]: T$.String(),
    mixBlendMode: T$.String(),
    [S$0.$mixBlendMode]: T$.String(),
    objectFit: T$.String(),
    [S$0.$objectFit]: T$.String(),
    objectPosition: T$.String(),
    [S$0.$objectPosition]: T$.String(),
    opacity: T$.String(),
    [S$0.$opacity]: T$.String(),
    order: T$.String(),
    [S$0.$order]: T$.String(),
    orientation: T$.String(),
    [S$.$orientation]: T$.String(),
    orphans: T$.String(),
    [S$0.$orphans]: T$.String(),
    outline: T$.String(),
    [S$0.$outline]: T$.String(),
    outlineColor: T$.String(),
    [S$0.$outlineColor]: T$.String(),
    outlineOffset: T$.String(),
    [S$0.$outlineOffset]: T$.String(),
    outlineStyle: T$.String(),
    [S$0.$outlineStyle]: T$.String(),
    outlineWidth: T$.String(),
    [S$0.$outlineWidth]: T$.String(),
    overflow: T$.String(),
    [S$0.$overflow]: T$.String(),
    overflowWrap: T$.String(),
    [S$0.$overflowWrap]: T$.String(),
    overflowX: T$.String(),
    [S$0.$overflowX]: T$.String(),
    overflowY: T$.String(),
    [S$0.$overflowY]: T$.String(),
    padding: T$.String(),
    [S$0.$padding]: T$.String(),
    paddingAfter: T$.String(),
    [S$0.$paddingAfter]: T$.String(),
    paddingBefore: T$.String(),
    [S$0.$paddingBefore]: T$.String(),
    paddingBottom: T$.String(),
    [S$0.$paddingBottom]: T$.String(),
    paddingEnd: T$.String(),
    [S$0.$paddingEnd]: T$.String(),
    paddingLeft: T$.String(),
    [S$0.$paddingLeft]: T$.String(),
    paddingRight: T$.String(),
    [S$0.$paddingRight]: T$.String(),
    paddingStart: T$.String(),
    [S$0.$paddingStart]: T$.String(),
    paddingTop: T$.String(),
    [S$0.$paddingTop]: T$.String(),
    page: T$.String(),
    [S$0.$page]: T$.String(),
    pageBreakAfter: T$.String(),
    [S$0.$pageBreakAfter]: T$.String(),
    pageBreakBefore: T$.String(),
    [S$0.$pageBreakBefore]: T$.String(),
    pageBreakInside: T$.String(),
    [S$0.$pageBreakInside]: T$.String(),
    perspective: T$.String(),
    [S$0.$perspective]: T$.String(),
    perspectiveOrigin: T$.String(),
    [S$0.$perspectiveOrigin]: T$.String(),
    perspectiveOriginX: T$.String(),
    [S$0.$perspectiveOriginX]: T$.String(),
    perspectiveOriginY: T$.String(),
    [S$0.$perspectiveOriginY]: T$.String(),
    pointerEvents: T$.String(),
    [S$0.$pointerEvents]: T$.String(),
    position: T$.String(),
    [S$0.$position]: T$.String(),
    printColorAdjust: T$.String(),
    [S$0.$printColorAdjust]: T$.String(),
    quotes: T$.String(),
    [S$0.$quotes]: T$.String(),
    resize: T$.String(),
    [S$0.$resize]: T$.String(),
    right: T$.String(),
    [$right]: T$.String(),
    rowGap: T$.String(),
    [S$0.$rowGap]: T$.String(),
    rtlOrdering: T$.String(),
    [S$0.$rtlOrdering]: T$.String(),
    rubyPosition: T$.String(),
    [S$0.$rubyPosition]: T$.String(),
    scrollBehavior: T$.String(),
    [S$0.$scrollBehavior]: T$.String(),
    shapeImageThreshold: T$.String(),
    [S$0.$shapeImageThreshold]: T$.String(),
    shapeMargin: T$.String(),
    [S$0.$shapeMargin]: T$.String(),
    shapeOutside: T$.String(),
    [S$0.$shapeOutside]: T$.String(),
    size: T$.String(),
    [S$.$size]: T$.String(),
    speak: T$.String(),
    [S$0.$speak]: T$.String(),
    src: T$.String(),
    [S$.$src]: T$.String(),
    tabSize: T$.String(),
    [S$0.$tabSize]: T$.String(),
    tableLayout: T$.String(),
    [S$0.$tableLayout]: T$.String(),
    tapHighlightColor: T$.String(),
    [S$0.$tapHighlightColor]: T$.String(),
    textAlign: T$.String(),
    [S$.$textAlign]: T$.String(),
    textAlignLast: T$.String(),
    [S$0.$textAlignLast]: T$.String(),
    textCombine: T$.String(),
    [S$0.$textCombine]: T$.String(),
    textDecoration: T$.String(),
    [S$0.$textDecoration]: T$.String(),
    textDecorationColor: T$.String(),
    [S$0.$textDecorationColor]: T$.String(),
    textDecorationLine: T$.String(),
    [S$0.$textDecorationLine]: T$.String(),
    textDecorationStyle: T$.String(),
    [S$0.$textDecorationStyle]: T$.String(),
    textDecorationsInEffect: T$.String(),
    [S$0.$textDecorationsInEffect]: T$.String(),
    textEmphasis: T$.String(),
    [S$0.$textEmphasis]: T$.String(),
    textEmphasisColor: T$.String(),
    [S$0.$textEmphasisColor]: T$.String(),
    textEmphasisPosition: T$.String(),
    [S$0.$textEmphasisPosition]: T$.String(),
    textEmphasisStyle: T$.String(),
    [S$0.$textEmphasisStyle]: T$.String(),
    textFillColor: T$.String(),
    [S$0.$textFillColor]: T$.String(),
    textIndent: T$.String(),
    [S$0.$textIndent]: T$.String(),
    textJustify: T$.String(),
    [S$0.$textJustify]: T$.String(),
    textLineThroughColor: T$.String(),
    [S$0.$textLineThroughColor]: T$.String(),
    textLineThroughMode: T$.String(),
    [S$0.$textLineThroughMode]: T$.String(),
    textLineThroughStyle: T$.String(),
    [S$0.$textLineThroughStyle]: T$.String(),
    textLineThroughWidth: T$.String(),
    [S$0.$textLineThroughWidth]: T$.String(),
    textOrientation: T$.String(),
    [S$0.$textOrientation]: T$.String(),
    textOverflow: T$.String(),
    [S$0.$textOverflow]: T$.String(),
    textOverlineColor: T$.String(),
    [S$0.$textOverlineColor]: T$.String(),
    textOverlineMode: T$.String(),
    [S$0.$textOverlineMode]: T$.String(),
    textOverlineStyle: T$.String(),
    [S$0.$textOverlineStyle]: T$.String(),
    textOverlineWidth: T$.String(),
    [S$0.$textOverlineWidth]: T$.String(),
    textRendering: T$.String(),
    [S$0.$textRendering]: T$.String(),
    textSecurity: T$.String(),
    [S$0.$textSecurity]: T$.String(),
    textShadow: T$.String(),
    [S$0.$textShadow]: T$.String(),
    textStroke: T$.String(),
    [S$0.$textStroke]: T$.String(),
    textStrokeColor: T$.String(),
    [S$0.$textStrokeColor]: T$.String(),
    textStrokeWidth: T$.String(),
    [S$0.$textStrokeWidth]: T$.String(),
    textTransform: T$.String(),
    [S$0.$textTransform]: T$.String(),
    textUnderlineColor: T$.String(),
    [S$0.$textUnderlineColor]: T$.String(),
    textUnderlineMode: T$.String(),
    [S$0.$textUnderlineMode]: T$.String(),
    textUnderlinePosition: T$.String(),
    [S$0.$textUnderlinePosition]: T$.String(),
    textUnderlineStyle: T$.String(),
    [S$0.$textUnderlineStyle]: T$.String(),
    textUnderlineWidth: T$.String(),
    [S$0.$textUnderlineWidth]: T$.String(),
    top: T$.String(),
    [$top]: T$.String(),
    touchAction: T$.String(),
    [S$0.$touchAction]: T$.String(),
    touchActionDelay: T$.String(),
    [S$0.$touchActionDelay]: T$.String(),
    transform: T$.String(),
    [S$.$transform]: T$.String(),
    transformOrigin: T$.String(),
    [S$0.$transformOrigin]: T$.String(),
    transformOriginX: T$.String(),
    [S$0.$transformOriginX]: T$.String(),
    transformOriginY: T$.String(),
    [S$0.$transformOriginY]: T$.String(),
    transformOriginZ: T$.String(),
    [S$0.$transformOriginZ]: T$.String(),
    transformStyle: T$.String(),
    [S$0.$transformStyle]: T$.String(),
    transition: T$.String(),
    [S$0.$transition]: T$.String(),
    transitionDelay: T$.String(),
    [S$0.$transitionDelay]: T$.String(),
    transitionDuration: T$.String(),
    [S$0.$transitionDuration]: T$.String(),
    transitionProperty: T$.String(),
    [S$0.$transitionProperty]: T$.String(),
    transitionTimingFunction: T$.String(),
    [S$0.$transitionTimingFunction]: T$.String(),
    unicodeBidi: T$.String(),
    [S$0.$unicodeBidi]: T$.String(),
    unicodeRange: T$.String(),
    [S$0.$unicodeRange]: T$.String(),
    userDrag: T$.String(),
    [S$0.$userDrag]: T$.String(),
    userModify: T$.String(),
    [S$0.$userModify]: T$.String(),
    userSelect: T$.String(),
    [S$0.$userSelect]: T$.String(),
    userZoom: T$.String(),
    [S$0.$userZoom]: T$.String(),
    verticalAlign: T$.String(),
    [S$0.$verticalAlign]: T$.String(),
    visibility: T$.String(),
    [S$0.$visibility]: T$.String(),
    whiteSpace: T$.String(),
    [S$0.$whiteSpace]: T$.String(),
    widows: T$.String(),
    [S$0.$widows]: T$.String(),
    width: T$.String(),
    [$width]: T$.String(),
    willChange: T$.String(),
    [S$0.$willChange]: T$.String(),
    wordBreak: T$.String(),
    [S$0.$wordBreak]: T$.String(),
    wordSpacing: T$.String(),
    [S$0.$wordSpacing]: T$.String(),
    wordWrap: T$.String(),
    [S$0.$wordWrap]: T$.String(),
    wrapFlow: T$.String(),
    [S$0.$wrapFlow]: T$.String(),
    wrapThrough: T$.String(),
    [S$0.$wrapThrough]: T$.String(),
    writingMode: T$.String(),
    [S$0.$writingMode]: T$.String(),
    zIndex: T$.String(),
    [S$0.$zIndex]: T$.String(),
    zoom: T$.String(),
    [S$0.$zoom]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssStyleDeclarationBase))));
  dart.setLibraryUri(html$.CssStyleDeclarationBase, I[167]);
  dart.defineExtensionAccessors(html$.CssStyleDeclarationBase, [
    'alignContent',
    'alignItems',
    'alignSelf',
    'animation',
    'animationDelay',
    'animationDirection',
    'animationDuration',
    'animationFillMode',
    'animationIterationCount',
    'animationName',
    'animationPlayState',
    'animationTimingFunction',
    'appRegion',
    'appearance',
    'aspectRatio',
    'backfaceVisibility',
    'background',
    'backgroundAttachment',
    'backgroundBlendMode',
    'backgroundClip',
    'backgroundColor',
    'backgroundComposite',
    'backgroundImage',
    'backgroundOrigin',
    'backgroundPosition',
    'backgroundPositionX',
    'backgroundPositionY',
    'backgroundRepeat',
    'backgroundRepeatX',
    'backgroundRepeatY',
    'backgroundSize',
    'border',
    'borderAfter',
    'borderAfterColor',
    'borderAfterStyle',
    'borderAfterWidth',
    'borderBefore',
    'borderBeforeColor',
    'borderBeforeStyle',
    'borderBeforeWidth',
    'borderBottom',
    'borderBottomColor',
    'borderBottomLeftRadius',
    'borderBottomRightRadius',
    'borderBottomStyle',
    'borderBottomWidth',
    'borderCollapse',
    'borderColor',
    'borderEnd',
    'borderEndColor',
    'borderEndStyle',
    'borderEndWidth',
    'borderFit',
    'borderHorizontalSpacing',
    'borderImage',
    'borderImageOutset',
    'borderImageRepeat',
    'borderImageSlice',
    'borderImageSource',
    'borderImageWidth',
    'borderLeft',
    'borderLeftColor',
    'borderLeftStyle',
    'borderLeftWidth',
    'borderRadius',
    'borderRight',
    'borderRightColor',
    'borderRightStyle',
    'borderRightWidth',
    'borderSpacing',
    'borderStart',
    'borderStartColor',
    'borderStartStyle',
    'borderStartWidth',
    'borderStyle',
    'borderTop',
    'borderTopColor',
    'borderTopLeftRadius',
    'borderTopRightRadius',
    'borderTopStyle',
    'borderTopWidth',
    'borderVerticalSpacing',
    'borderWidth',
    'bottom',
    'boxAlign',
    'boxDecorationBreak',
    'boxDirection',
    'boxFlex',
    'boxFlexGroup',
    'boxLines',
    'boxOrdinalGroup',
    'boxOrient',
    'boxPack',
    'boxReflect',
    'boxShadow',
    'boxSizing',
    'captionSide',
    'clear',
    'clip',
    'clipPath',
    'color',
    'columnBreakAfter',
    'columnBreakBefore',
    'columnBreakInside',
    'columnCount',
    'columnFill',
    'columnGap',
    'columnRule',
    'columnRuleColor',
    'columnRuleStyle',
    'columnRuleWidth',
    'columnSpan',
    'columnWidth',
    'columns',
    'content',
    'counterIncrement',
    'counterReset',
    'cursor',
    'direction',
    'display',
    'emptyCells',
    'filter',
    'flex',
    'flexBasis',
    'flexDirection',
    'flexFlow',
    'flexGrow',
    'flexShrink',
    'flexWrap',
    'float',
    'font',
    'fontFamily',
    'fontFeatureSettings',
    'fontKerning',
    'fontSize',
    'fontSizeDelta',
    'fontSmoothing',
    'fontStretch',
    'fontStyle',
    'fontVariant',
    'fontVariantLigatures',
    'fontWeight',
    'gap',
    'grid',
    'gridArea',
    'gridAutoColumns',
    'gridAutoFlow',
    'gridAutoRows',
    'gridColumn',
    'gridColumnEnd',
    'gridColumnStart',
    'gridRow',
    'gridRowEnd',
    'gridRowStart',
    'gridTemplate',
    'gridTemplateAreas',
    'gridTemplateColumns',
    'gridTemplateRows',
    'height',
    'highlight',
    'hyphenateCharacter',
    'imageRendering',
    'isolation',
    'justifyContent',
    'justifySelf',
    'left',
    'letterSpacing',
    'lineBoxContain',
    'lineBreak',
    'lineClamp',
    'lineHeight',
    'listStyle',
    'listStyleImage',
    'listStylePosition',
    'listStyleType',
    'locale',
    'logicalHeight',
    'logicalWidth',
    'margin',
    'marginAfter',
    'marginAfterCollapse',
    'marginBefore',
    'marginBeforeCollapse',
    'marginBottom',
    'marginBottomCollapse',
    'marginCollapse',
    'marginEnd',
    'marginLeft',
    'marginRight',
    'marginStart',
    'marginTop',
    'marginTopCollapse',
    'mask',
    'maskBoxImage',
    'maskBoxImageOutset',
    'maskBoxImageRepeat',
    'maskBoxImageSlice',
    'maskBoxImageSource',
    'maskBoxImageWidth',
    'maskClip',
    'maskComposite',
    'maskImage',
    'maskOrigin',
    'maskPosition',
    'maskPositionX',
    'maskPositionY',
    'maskRepeat',
    'maskRepeatX',
    'maskRepeatY',
    'maskSize',
    'maskSourceType',
    'maxHeight',
    'maxLogicalHeight',
    'maxLogicalWidth',
    'maxWidth',
    'maxZoom',
    'minHeight',
    'minLogicalHeight',
    'minLogicalWidth',
    'minWidth',
    'minZoom',
    'mixBlendMode',
    'objectFit',
    'objectPosition',
    'opacity',
    'order',
    'orientation',
    'orphans',
    'outline',
    'outlineColor',
    'outlineOffset',
    'outlineStyle',
    'outlineWidth',
    'overflow',
    'overflowWrap',
    'overflowX',
    'overflowY',
    'padding',
    'paddingAfter',
    'paddingBefore',
    'paddingBottom',
    'paddingEnd',
    'paddingLeft',
    'paddingRight',
    'paddingStart',
    'paddingTop',
    'page',
    'pageBreakAfter',
    'pageBreakBefore',
    'pageBreakInside',
    'perspective',
    'perspectiveOrigin',
    'perspectiveOriginX',
    'perspectiveOriginY',
    'pointerEvents',
    'position',
    'printColorAdjust',
    'quotes',
    'resize',
    'right',
    'rowGap',
    'rtlOrdering',
    'rubyPosition',
    'scrollBehavior',
    'shapeImageThreshold',
    'shapeMargin',
    'shapeOutside',
    'size',
    'speak',
    'src',
    'tabSize',
    'tableLayout',
    'tapHighlightColor',
    'textAlign',
    'textAlignLast',
    'textCombine',
    'textDecoration',
    'textDecorationColor',
    'textDecorationLine',
    'textDecorationStyle',
    'textDecorationsInEffect',
    'textEmphasis',
    'textEmphasisColor',
    'textEmphasisPosition',
    'textEmphasisStyle',
    'textFillColor',
    'textIndent',
    'textJustify',
    'textLineThroughColor',
    'textLineThroughMode',
    'textLineThroughStyle',
    'textLineThroughWidth',
    'textOrientation',
    'textOverflow',
    'textOverlineColor',
    'textOverlineMode',
    'textOverlineStyle',
    'textOverlineWidth',
    'textRendering',
    'textSecurity',
    'textShadow',
    'textStroke',
    'textStrokeColor',
    'textStrokeWidth',
    'textTransform',
    'textUnderlineColor',
    'textUnderlineMode',
    'textUnderlinePosition',
    'textUnderlineStyle',
    'textUnderlineWidth',
    'top',
    'touchAction',
    'touchActionDelay',
    'transform',
    'transformOrigin',
    'transformOriginX',
    'transformOriginY',
    'transformOriginZ',
    'transformStyle',
    'transition',
    'transitionDelay',
    'transitionDuration',
    'transitionProperty',
    'transitionTimingFunction',
    'unicodeBidi',
    'unicodeRange',
    'userDrag',
    'userModify',
    'userSelect',
    'userZoom',
    'verticalAlign',
    'visibility',
    'whiteSpace',
    'widows',
    'width',
    'willChange',
    'wordBreak',
    'wordSpacing',
    'wordWrap',
    'wrapFlow',
    'wrapThrough',
    'writingMode',
    'zIndex',
    'zoom'
  ]);
  const JavaScriptObject_CssStyleDeclarationBase$36 = class JavaScriptObject_CssStyleDeclarationBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_CssStyleDeclarationBase$36.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_CssStyleDeclarationBase$36).new.call(this);
  }).prototype = JavaScriptObject_CssStyleDeclarationBase$36.prototype;
  dart.applyMixin(JavaScriptObject_CssStyleDeclarationBase$36, html$.CssStyleDeclarationBase);
  html$.CssStyleDeclaration = class CssStyleDeclaration extends JavaScriptObject_CssStyleDeclarationBase$36 {
    static new() {
      return html$.CssStyleDeclaration.css("");
    }
    static ['_#new#tearOff']() {
      return html$.CssStyleDeclaration.new();
    }
    static css(css) {
      if (css == null) dart.nullFailed(I[166], 3970, 42, "css");
      let style = html$.DivElement.new().style;
      style.cssText = css;
      return style;
    }
    static ['_#css#tearOff'](css) {
      if (css == null) dart.nullFailed(I[166], 3970, 42, "css");
      return html$.CssStyleDeclaration.css(css);
    }
    [S$.$getPropertyValue](propertyName) {
      if (propertyName == null) dart.nullFailed(I[166], 3981, 34, "propertyName");
      return this[S$._getPropertyValueHelper](propertyName);
    }
    [S$._getPropertyValueHelper](propertyName) {
      if (propertyName == null) dart.nullFailed(I[166], 3985, 41, "propertyName");
      return this[S$._getPropertyValue](this[S$._browserPropertyName](propertyName));
    }
    [S$.$supportsProperty](propertyName) {
      if (propertyName == null) dart.nullFailed(I[166], 3997, 32, "propertyName");
      return dart.test(this[S$._supportsProperty](propertyName)) || dart.test(this[S$._supportsProperty](html$.CssStyleDeclaration._camelCase(dart.str(html_common.Device.cssPrefix) + dart.str(propertyName))));
    }
    [S$._supportsProperty](propertyName) {
      if (propertyName == null) dart.nullFailed(I[166], 4002, 33, "propertyName");
      return propertyName in this;
    }
    [S$.$setProperty](propertyName, value, priority = null) {
      if (propertyName == null) dart.nullFailed(I[166], 4006, 27, "propertyName");
      return this[S$._setPropertyHelper](this[S$._browserPropertyName](propertyName), value, priority);
    }
    [S$._browserPropertyName](propertyName) {
      if (propertyName == null) dart.nullFailed(I[166], 4011, 38, "propertyName");
      let name = html$.CssStyleDeclaration._readCache(propertyName);
      if (typeof name == 'string') return name;
      name = this[S$._supportedBrowserPropertyName](propertyName);
      html$.CssStyleDeclaration._writeCache(propertyName, name);
      return name;
    }
    [S$._supportedBrowserPropertyName](propertyName) {
      if (propertyName == null) dart.nullFailed(I[166], 4019, 47, "propertyName");
      if (dart.test(this[S$._supportsProperty](html$.CssStyleDeclaration._camelCase(propertyName)))) {
        return propertyName;
      }
      let prefixed = dart.str(html_common.Device.cssPrefix) + dart.str(propertyName);
      if (dart.test(this[S$._supportsProperty](prefixed))) {
        return prefixed;
      }
      return propertyName;
    }
    static _readCache(key) {
      if (key == null) dart.nullFailed(I[166], 4032, 36, "key");
      return html$.CssStyleDeclaration._propertyCache[key];
    }
    static _writeCache(key, value) {
      if (key == null) dart.nullFailed(I[166], 4034, 34, "key");
      if (value == null) dart.nullFailed(I[166], 4034, 46, "value");
      html$.CssStyleDeclaration._propertyCache[key] = value;
    }
    static _camelCase(hyphenated) {
      if (hyphenated == null) dart.nullFailed(I[166], 4038, 35, "hyphenated");
      let replacedMs = hyphenated.replace(/^-ms-/, "ms-");
      return replacedMs.replace(/-([\da-z])/ig, function(_, letter) {
        return letter.toUpperCase();
      });
    }
    [S$._setPropertyHelper](propertyName, value, priority = null) {
      if (propertyName == null) dart.nullFailed(I[166], 4047, 34, "propertyName");
      if (value == null) value = "";
      if (priority == null) priority = "";
      this.setProperty(propertyName, value, priority);
    }
    static get supportsTransitions() {
      return dart.nullCheck(html$.document.body).style[S$.$supportsProperty]("transition");
    }
    static ['_#_#tearOff']() {
      return html$.CssStyleDeclaration.__();
    }
    get [S$.$cssFloat]() {
      return this.cssFloat;
    }
    set [S$.$cssFloat](value) {
      this.cssFloat = value;
    }
    get [S$.$cssText]() {
      return this.cssText;
    }
    set [S$.$cssText](value) {
      this.cssText = value;
    }
    get [$length]() {
      return this.length;
    }
    get [S$.$parentRule]() {
      return this.parentRule;
    }
    [S$.$getPropertyPriority](...args) {
      return this.getPropertyPriority.apply(this, args);
    }
    [S$._getPropertyValue](...args) {
      return this.getPropertyValue.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [S$.$removeProperty](...args) {
      return this.removeProperty.apply(this, args);
    }
    get [S$.$background]() {
      return this[S$._background];
    }
    set [S$.$background](value) {
      this[S$._background] = value == null ? "" : value;
    }
    get [S$._background]() {
      return this.background;
    }
    set [S$._background](value) {
      this.background = value;
    }
    get [S$.$backgroundAttachment]() {
      return this[S$._backgroundAttachment];
    }
    set [S$.$backgroundAttachment](value) {
      this[S$._backgroundAttachment] = value == null ? "" : value;
    }
    get [S$._backgroundAttachment]() {
      return this.backgroundAttachment;
    }
    set [S$._backgroundAttachment](value) {
      this.backgroundAttachment = value;
    }
    get [S$.$backgroundColor]() {
      return this[S$._backgroundColor];
    }
    set [S$.$backgroundColor](value) {
      this[S$._backgroundColor] = value == null ? "" : value;
    }
    get [S$._backgroundColor]() {
      return this.backgroundColor;
    }
    set [S$._backgroundColor](value) {
      this.backgroundColor = value;
    }
    get [S$.$backgroundImage]() {
      return this[S$._backgroundImage];
    }
    set [S$.$backgroundImage](value) {
      this[S$._backgroundImage] = value == null ? "" : value;
    }
    get [S$._backgroundImage]() {
      return this.backgroundImage;
    }
    set [S$._backgroundImage](value) {
      this.backgroundImage = value;
    }
    get [S$.$backgroundPosition]() {
      return this[S$._backgroundPosition];
    }
    set [S$.$backgroundPosition](value) {
      this[S$._backgroundPosition] = value == null ? "" : value;
    }
    get [S$._backgroundPosition]() {
      return this.backgroundPosition;
    }
    set [S$._backgroundPosition](value) {
      this.backgroundPosition = value;
    }
    get [S$.$backgroundRepeat]() {
      return this[S$._backgroundRepeat];
    }
    set [S$.$backgroundRepeat](value) {
      this[S$._backgroundRepeat] = value == null ? "" : value;
    }
    get [S$._backgroundRepeat]() {
      return this.backgroundRepeat;
    }
    set [S$._backgroundRepeat](value) {
      this.backgroundRepeat = value;
    }
    get [S$.$border]() {
      return this[S$._border];
    }
    set [S$.$border](value) {
      this[S$._border] = value == null ? "" : value;
    }
    get [S$._border]() {
      return this.border;
    }
    set [S$._border](value) {
      this.border = value;
    }
    get [S$.$borderBottom]() {
      return this[S$._borderBottom];
    }
    set [S$.$borderBottom](value) {
      this[S$._borderBottom] = value == null ? "" : value;
    }
    get [S$._borderBottom]() {
      return this.borderBottom;
    }
    set [S$._borderBottom](value) {
      this.borderBottom = value;
    }
    get [S$.$borderBottomColor]() {
      return this[S$._borderBottomColor];
    }
    set [S$.$borderBottomColor](value) {
      this[S$._borderBottomColor] = value == null ? "" : value;
    }
    get [S$._borderBottomColor]() {
      return this.borderBottomColor;
    }
    set [S$._borderBottomColor](value) {
      this.borderBottomColor = value;
    }
    get [S$.$borderBottomStyle]() {
      return this[S$._borderBottomStyle];
    }
    set [S$.$borderBottomStyle](value) {
      this[S$._borderBottomStyle] = value == null ? "" : value;
    }
    get [S$._borderBottomStyle]() {
      return this.borderBottomStyle;
    }
    set [S$._borderBottomStyle](value) {
      this.borderBottomStyle = value;
    }
    get [S$.$borderBottomWidth]() {
      return this[S$._borderBottomWidth];
    }
    set [S$.$borderBottomWidth](value) {
      this[S$._borderBottomWidth] = value == null ? "" : value;
    }
    get [S$._borderBottomWidth]() {
      return this.borderBottomWidth;
    }
    set [S$._borderBottomWidth](value) {
      this.borderBottomWidth = value;
    }
    get [S$0.$borderCollapse]() {
      return this[S$0._borderCollapse];
    }
    set [S$0.$borderCollapse](value) {
      this[S$0._borderCollapse] = value == null ? "" : value;
    }
    get [S$0._borderCollapse]() {
      return this.borderCollapse;
    }
    set [S$0._borderCollapse](value) {
      this.borderCollapse = value;
    }
    get [S$0.$borderColor]() {
      return this[S$0._borderColor];
    }
    set [S$0.$borderColor](value) {
      this[S$0._borderColor] = value == null ? "" : value;
    }
    get [S$0._borderColor]() {
      return this.borderColor;
    }
    set [S$0._borderColor](value) {
      this.borderColor = value;
    }
    get [S$0.$borderLeft]() {
      return this[S$0._borderLeft];
    }
    set [S$0.$borderLeft](value) {
      this[S$0._borderLeft] = value == null ? "" : value;
    }
    get [S$0._borderLeft]() {
      return this.borderLeft;
    }
    set [S$0._borderLeft](value) {
      this.borderLeft = value;
    }
    get [S$0.$borderLeftColor]() {
      return this[S$0._borderLeftColor];
    }
    set [S$0.$borderLeftColor](value) {
      this[S$0._borderLeftColor] = value == null ? "" : value;
    }
    get [S$0._borderLeftColor]() {
      return this.borderLeftColor;
    }
    set [S$0._borderLeftColor](value) {
      this.borderLeftColor = value;
    }
    get [S$0.$borderLeftStyle]() {
      return this[S$0._borderLeftStyle];
    }
    set [S$0.$borderLeftStyle](value) {
      this[S$0._borderLeftStyle] = value == null ? "" : value;
    }
    get [S$0._borderLeftStyle]() {
      return this.borderLeftStyle;
    }
    set [S$0._borderLeftStyle](value) {
      this.borderLeftStyle = value;
    }
    get [S$0.$borderLeftWidth]() {
      return this[S$0._borderLeftWidth];
    }
    set [S$0.$borderLeftWidth](value) {
      this[S$0._borderLeftWidth] = value == null ? "" : value;
    }
    get [S$0._borderLeftWidth]() {
      return this.borderLeftWidth;
    }
    set [S$0._borderLeftWidth](value) {
      this.borderLeftWidth = value;
    }
    get [S$0.$borderRight]() {
      return this[S$0._borderRight];
    }
    set [S$0.$borderRight](value) {
      this[S$0._borderRight] = value == null ? "" : value;
    }
    get [S$0._borderRight]() {
      return this.borderRight;
    }
    set [S$0._borderRight](value) {
      this.borderRight = value;
    }
    get [S$0.$borderRightColor]() {
      return this[S$0._borderRightColor];
    }
    set [S$0.$borderRightColor](value) {
      this[S$0._borderRightColor] = value == null ? "" : value;
    }
    get [S$0._borderRightColor]() {
      return this.borderRightColor;
    }
    set [S$0._borderRightColor](value) {
      this.borderRightColor = value;
    }
    get [S$0.$borderRightStyle]() {
      return this[S$0._borderRightStyle];
    }
    set [S$0.$borderRightStyle](value) {
      this[S$0._borderRightStyle] = value == null ? "" : value;
    }
    get [S$0._borderRightStyle]() {
      return this.borderRightStyle;
    }
    set [S$0._borderRightStyle](value) {
      this.borderRightStyle = value;
    }
    get [S$0.$borderRightWidth]() {
      return this[S$0._borderRightWidth];
    }
    set [S$0.$borderRightWidth](value) {
      this[S$0._borderRightWidth] = value == null ? "" : value;
    }
    get [S$0._borderRightWidth]() {
      return this.borderRightWidth;
    }
    set [S$0._borderRightWidth](value) {
      this.borderRightWidth = value;
    }
    get [S$0.$borderSpacing]() {
      return this[S$0._borderSpacing];
    }
    set [S$0.$borderSpacing](value) {
      this[S$0._borderSpacing] = value == null ? "" : value;
    }
    get [S$0._borderSpacing]() {
      return this.borderSpacing;
    }
    set [S$0._borderSpacing](value) {
      this.borderSpacing = value;
    }
    get [S$0.$borderStyle]() {
      return this[S$0._borderStyle];
    }
    set [S$0.$borderStyle](value) {
      this[S$0._borderStyle] = value == null ? "" : value;
    }
    get [S$0._borderStyle]() {
      return this.borderStyle;
    }
    set [S$0._borderStyle](value) {
      this.borderStyle = value;
    }
    get [S$0.$borderTop]() {
      return this[S$0._borderTop];
    }
    set [S$0.$borderTop](value) {
      this[S$0._borderTop] = value == null ? "" : value;
    }
    get [S$0._borderTop]() {
      return this.borderTop;
    }
    set [S$0._borderTop](value) {
      this.borderTop = value;
    }
    get [S$0.$borderTopColor]() {
      return this[S$0._borderTopColor];
    }
    set [S$0.$borderTopColor](value) {
      this[S$0._borderTopColor] = value == null ? "" : value;
    }
    get [S$0._borderTopColor]() {
      return this.borderTopColor;
    }
    set [S$0._borderTopColor](value) {
      this.borderTopColor = value;
    }
    get [S$0.$borderTopStyle]() {
      return this[S$0._borderTopStyle];
    }
    set [S$0.$borderTopStyle](value) {
      this[S$0._borderTopStyle] = value == null ? "" : value;
    }
    get [S$0._borderTopStyle]() {
      return this.borderTopStyle;
    }
    set [S$0._borderTopStyle](value) {
      this.borderTopStyle = value;
    }
    get [S$0.$borderTopWidth]() {
      return this[S$0._borderTopWidth];
    }
    set [S$0.$borderTopWidth](value) {
      this[S$0._borderTopWidth] = value == null ? "" : value;
    }
    get [S$0._borderTopWidth]() {
      return this.borderTopWidth;
    }
    set [S$0._borderTopWidth](value) {
      this.borderTopWidth = value;
    }
    get [S$0.$borderWidth]() {
      return this[S$0._borderWidth];
    }
    set [S$0.$borderWidth](value) {
      this[S$0._borderWidth] = value == null ? "" : value;
    }
    get [S$0._borderWidth]() {
      return this.borderWidth;
    }
    set [S$0._borderWidth](value) {
      this.borderWidth = value;
    }
    get [$bottom]() {
      return this[S$0._bottom];
    }
    set [$bottom](value) {
      this[S$0._bottom] = value == null ? "" : value;
    }
    get [S$0._bottom]() {
      return this.bottom;
    }
    set [S$0._bottom](value) {
      this.bottom = value;
    }
    get [S$0.$captionSide]() {
      return this[S$0._captionSide];
    }
    set [S$0.$captionSide](value) {
      this[S$0._captionSide] = value == null ? "" : value;
    }
    get [S$0._captionSide]() {
      return this.captionSide;
    }
    set [S$0._captionSide](value) {
      this.captionSide = value;
    }
    get [$clear]() {
      return this[S$0._clear$3];
    }
    set [$clear](value) {
      this[S$0._clear$3] = value == null ? "" : value;
    }
    get [S$0._clear$3]() {
      return this.clear;
    }
    set [S$0._clear$3](value) {
      this.clear = value;
    }
    get [S$.$clip]() {
      return this[S$0._clip];
    }
    set [S$.$clip](value) {
      this[S$0._clip] = value == null ? "" : value;
    }
    get [S$0._clip]() {
      return this.clip;
    }
    set [S$0._clip](value) {
      this.clip = value;
    }
    get [S$0.$color]() {
      return this[S$0._color];
    }
    set [S$0.$color](value) {
      this[S$0._color] = value == null ? "" : value;
    }
    get [S$0._color]() {
      return this.color;
    }
    set [S$0._color](value) {
      this.color = value;
    }
    get [S$0.$content]() {
      return this[S$0._content];
    }
    set [S$0.$content](value) {
      this[S$0._content] = value == null ? "" : value;
    }
    get [S$0._content]() {
      return this.content;
    }
    set [S$0._content](value) {
      this.content = value;
    }
    get [S$0.$cursor]() {
      return this[S$0._cursor];
    }
    set [S$0.$cursor](value) {
      this[S$0._cursor] = value == null ? "" : value;
    }
    get [S$0._cursor]() {
      return this.cursor;
    }
    set [S$0._cursor](value) {
      this.cursor = value;
    }
    get [S.$direction]() {
      return this[S$0._direction];
    }
    set [S.$direction](value) {
      this[S$0._direction] = value == null ? "" : value;
    }
    get [S$0._direction]() {
      return this.direction;
    }
    set [S$0._direction](value) {
      this.direction = value;
    }
    get [S$0.$display]() {
      return this[S$0._display];
    }
    set [S$0.$display](value) {
      this[S$0._display] = value == null ? "" : value;
    }
    get [S$0._display]() {
      return this.display;
    }
    set [S$0._display](value) {
      this.display = value;
    }
    get [S$0.$emptyCells]() {
      return this[S$0._emptyCells];
    }
    set [S$0.$emptyCells](value) {
      this[S$0._emptyCells] = value == null ? "" : value;
    }
    get [S$0._emptyCells]() {
      return this.emptyCells;
    }
    set [S$0._emptyCells](value) {
      this.emptyCells = value;
    }
    get [S$.$font]() {
      return this[S$0._font];
    }
    set [S$.$font](value) {
      this[S$0._font] = value == null ? "" : value;
    }
    get [S$0._font]() {
      return this.font;
    }
    set [S$0._font](value) {
      this.font = value;
    }
    get [S$0.$fontFamily]() {
      return this[S$0._fontFamily];
    }
    set [S$0.$fontFamily](value) {
      this[S$0._fontFamily] = value == null ? "" : value;
    }
    get [S$0._fontFamily]() {
      return this.fontFamily;
    }
    set [S$0._fontFamily](value) {
      this.fontFamily = value;
    }
    get [S$0.$fontSize]() {
      return this[S$0._fontSize];
    }
    set [S$0.$fontSize](value) {
      this[S$0._fontSize] = value == null ? "" : value;
    }
    get [S$0._fontSize]() {
      return this.fontSize;
    }
    set [S$0._fontSize](value) {
      this.fontSize = value;
    }
    get [S$0.$fontStyle]() {
      return this[S$0._fontStyle];
    }
    set [S$0.$fontStyle](value) {
      this[S$0._fontStyle] = value == null ? "" : value;
    }
    get [S$0._fontStyle]() {
      return this.fontStyle;
    }
    set [S$0._fontStyle](value) {
      this.fontStyle = value;
    }
    get [S$0.$fontVariant]() {
      return this[S$0._fontVariant];
    }
    set [S$0.$fontVariant](value) {
      this[S$0._fontVariant] = value == null ? "" : value;
    }
    get [S$0._fontVariant]() {
      return this.fontVariant;
    }
    set [S$0._fontVariant](value) {
      this.fontVariant = value;
    }
    get [S$0.$fontWeight]() {
      return this[S$0._fontWeight];
    }
    set [S$0.$fontWeight](value) {
      this[S$0._fontWeight] = value == null ? "" : value;
    }
    get [S$0._fontWeight]() {
      return this.fontWeight;
    }
    set [S$0._fontWeight](value) {
      this.fontWeight = value;
    }
    get [$height]() {
      return this[S$0._height$1];
    }
    set [$height](value) {
      this[S$0._height$1] = value == null ? "" : value;
    }
    get [S$0._height$1]() {
      return this.height;
    }
    set [S$0._height$1](value) {
      this.height = value;
    }
    get [$left]() {
      return this[S$0._left$2];
    }
    set [$left](value) {
      this[S$0._left$2] = value == null ? "" : value;
    }
    get [S$0._left$2]() {
      return this.left;
    }
    set [S$0._left$2](value) {
      this.left = value;
    }
    get [S$0.$letterSpacing]() {
      return this[S$0._letterSpacing];
    }
    set [S$0.$letterSpacing](value) {
      this[S$0._letterSpacing] = value == null ? "" : value;
    }
    get [S$0._letterSpacing]() {
      return this.letterSpacing;
    }
    set [S$0._letterSpacing](value) {
      this.letterSpacing = value;
    }
    get [S$0.$lineHeight]() {
      return this[S$0._lineHeight];
    }
    set [S$0.$lineHeight](value) {
      this[S$0._lineHeight] = value == null ? "" : value;
    }
    get [S$0._lineHeight]() {
      return this.lineHeight;
    }
    set [S$0._lineHeight](value) {
      this.lineHeight = value;
    }
    get [S$0.$listStyle]() {
      return this[S$0._listStyle];
    }
    set [S$0.$listStyle](value) {
      this[S$0._listStyle] = value == null ? "" : value;
    }
    get [S$0._listStyle]() {
      return this.listStyle;
    }
    set [S$0._listStyle](value) {
      this.listStyle = value;
    }
    get [S$0.$listStyleImage]() {
      return this[S$0._listStyleImage];
    }
    set [S$0.$listStyleImage](value) {
      this[S$0._listStyleImage] = value == null ? "" : value;
    }
    get [S$0._listStyleImage]() {
      return this.listStyleImage;
    }
    set [S$0._listStyleImage](value) {
      this.listStyleImage = value;
    }
    get [S$0.$listStylePosition]() {
      return this[S$0._listStylePosition];
    }
    set [S$0.$listStylePosition](value) {
      this[S$0._listStylePosition] = value == null ? "" : value;
    }
    get [S$0._listStylePosition]() {
      return this.listStylePosition;
    }
    set [S$0._listStylePosition](value) {
      this.listStylePosition = value;
    }
    get [S$0.$listStyleType]() {
      return this[S$0._listStyleType];
    }
    set [S$0.$listStyleType](value) {
      this[S$0._listStyleType] = value == null ? "" : value;
    }
    get [S$0._listStyleType]() {
      return this.listStyleType;
    }
    set [S$0._listStyleType](value) {
      this.listStyleType = value;
    }
    get [S$0.$margin]() {
      return this[S$0._margin];
    }
    set [S$0.$margin](value) {
      this[S$0._margin] = value == null ? "" : value;
    }
    get [S$0._margin]() {
      return this.margin;
    }
    set [S$0._margin](value) {
      this.margin = value;
    }
    get [S$0.$marginBottom]() {
      return this[S$0._marginBottom];
    }
    set [S$0.$marginBottom](value) {
      this[S$0._marginBottom] = value == null ? "" : value;
    }
    get [S$0._marginBottom]() {
      return this.marginBottom;
    }
    set [S$0._marginBottom](value) {
      this.marginBottom = value;
    }
    get [S$0.$marginLeft]() {
      return this[S$0._marginLeft];
    }
    set [S$0.$marginLeft](value) {
      this[S$0._marginLeft] = value == null ? "" : value;
    }
    get [S$0._marginLeft]() {
      return this.marginLeft;
    }
    set [S$0._marginLeft](value) {
      this.marginLeft = value;
    }
    get [S$0.$marginRight]() {
      return this[S$0._marginRight];
    }
    set [S$0.$marginRight](value) {
      this[S$0._marginRight] = value == null ? "" : value;
    }
    get [S$0._marginRight]() {
      return this.marginRight;
    }
    set [S$0._marginRight](value) {
      this.marginRight = value;
    }
    get [S$0.$marginTop]() {
      return this[S$0._marginTop];
    }
    set [S$0.$marginTop](value) {
      this[S$0._marginTop] = value == null ? "" : value;
    }
    get [S$0._marginTop]() {
      return this.marginTop;
    }
    set [S$0._marginTop](value) {
      this.marginTop = value;
    }
    get [S$0.$maxHeight]() {
      return this[S$0._maxHeight];
    }
    set [S$0.$maxHeight](value) {
      this[S$0._maxHeight] = value == null ? "" : value;
    }
    get [S$0._maxHeight]() {
      return this.maxHeight;
    }
    set [S$0._maxHeight](value) {
      this.maxHeight = value;
    }
    get [S$0.$maxWidth]() {
      return this[S$0._maxWidth];
    }
    set [S$0.$maxWidth](value) {
      this[S$0._maxWidth] = value == null ? "" : value;
    }
    get [S$0._maxWidth]() {
      return this.maxWidth;
    }
    set [S$0._maxWidth](value) {
      this.maxWidth = value;
    }
    get [S$0.$minHeight]() {
      return this[S$0._minHeight];
    }
    set [S$0.$minHeight](value) {
      this[S$0._minHeight] = value == null ? "" : value;
    }
    get [S$0._minHeight]() {
      return this.minHeight;
    }
    set [S$0._minHeight](value) {
      this.minHeight = value;
    }
    get [S$0.$minWidth]() {
      return this[S$0._minWidth];
    }
    set [S$0.$minWidth](value) {
      this[S$0._minWidth] = value == null ? "" : value;
    }
    get [S$0._minWidth]() {
      return this.minWidth;
    }
    set [S$0._minWidth](value) {
      this.minWidth = value;
    }
    get [S$0.$outline]() {
      return this[S$0._outline];
    }
    set [S$0.$outline](value) {
      this[S$0._outline] = value == null ? "" : value;
    }
    get [S$0._outline]() {
      return this.outline;
    }
    set [S$0._outline](value) {
      this.outline = value;
    }
    get [S$0.$outlineColor]() {
      return this[S$0._outlineColor];
    }
    set [S$0.$outlineColor](value) {
      this[S$0._outlineColor] = value == null ? "" : value;
    }
    get [S$0._outlineColor]() {
      return this.outlineColor;
    }
    set [S$0._outlineColor](value) {
      this.outlineColor = value;
    }
    get [S$0.$outlineStyle]() {
      return this[S$0._outlineStyle];
    }
    set [S$0.$outlineStyle](value) {
      this[S$0._outlineStyle] = value == null ? "" : value;
    }
    get [S$0._outlineStyle]() {
      return this.outlineStyle;
    }
    set [S$0._outlineStyle](value) {
      this.outlineStyle = value;
    }
    get [S$0.$outlineWidth]() {
      return this[S$0._outlineWidth];
    }
    set [S$0.$outlineWidth](value) {
      this[S$0._outlineWidth] = value == null ? "" : value;
    }
    get [S$0._outlineWidth]() {
      return this.outlineWidth;
    }
    set [S$0._outlineWidth](value) {
      this.outlineWidth = value;
    }
    get [S$0.$overflow]() {
      return this[S$0._overflow];
    }
    set [S$0.$overflow](value) {
      this[S$0._overflow] = value == null ? "" : value;
    }
    get [S$0._overflow]() {
      return this.overflow;
    }
    set [S$0._overflow](value) {
      this.overflow = value;
    }
    get [S$0.$padding]() {
      return this[S$0._padding];
    }
    set [S$0.$padding](value) {
      this[S$0._padding] = value == null ? "" : value;
    }
    get [S$0._padding]() {
      return this.padding;
    }
    set [S$0._padding](value) {
      this.padding = value;
    }
    get [S$0.$paddingBottom]() {
      return this[S$0._paddingBottom];
    }
    set [S$0.$paddingBottom](value) {
      this[S$0._paddingBottom] = value == null ? "" : value;
    }
    get [S$0._paddingBottom]() {
      return this.paddingBottom;
    }
    set [S$0._paddingBottom](value) {
      this.paddingBottom = value;
    }
    get [S$0.$paddingLeft]() {
      return this[S$0._paddingLeft];
    }
    set [S$0.$paddingLeft](value) {
      this[S$0._paddingLeft] = value == null ? "" : value;
    }
    get [S$0._paddingLeft]() {
      return this.paddingLeft;
    }
    set [S$0._paddingLeft](value) {
      this.paddingLeft = value;
    }
    get [S$0.$paddingRight]() {
      return this[S$0._paddingRight];
    }
    set [S$0.$paddingRight](value) {
      this[S$0._paddingRight] = value == null ? "" : value;
    }
    get [S$0._paddingRight]() {
      return this.paddingRight;
    }
    set [S$0._paddingRight](value) {
      this.paddingRight = value;
    }
    get [S$0.$paddingTop]() {
      return this[S$0._paddingTop];
    }
    set [S$0.$paddingTop](value) {
      this[S$0._paddingTop] = value == null ? "" : value;
    }
    get [S$0._paddingTop]() {
      return this.paddingTop;
    }
    set [S$0._paddingTop](value) {
      this.paddingTop = value;
    }
    get [S$0.$pageBreakAfter]() {
      return this[S$0._pageBreakAfter];
    }
    set [S$0.$pageBreakAfter](value) {
      this[S$0._pageBreakAfter] = value == null ? "" : value;
    }
    get [S$0._pageBreakAfter]() {
      return this.pageBreakAfter;
    }
    set [S$0._pageBreakAfter](value) {
      this.pageBreakAfter = value;
    }
    get [S$0.$pageBreakBefore]() {
      return this[S$0._pageBreakBefore];
    }
    set [S$0.$pageBreakBefore](value) {
      this[S$0._pageBreakBefore] = value == null ? "" : value;
    }
    get [S$0._pageBreakBefore]() {
      return this.pageBreakBefore;
    }
    set [S$0._pageBreakBefore](value) {
      this.pageBreakBefore = value;
    }
    get [S$0.$pageBreakInside]() {
      return this[S$0._pageBreakInside];
    }
    set [S$0.$pageBreakInside](value) {
      this[S$0._pageBreakInside] = value == null ? "" : value;
    }
    get [S$0._pageBreakInside]() {
      return this.pageBreakInside;
    }
    set [S$0._pageBreakInside](value) {
      this.pageBreakInside = value;
    }
    get [S$0.$position]() {
      return this[S$0._position$2];
    }
    set [S$0.$position](value) {
      this[S$0._position$2] = value == null ? "" : value;
    }
    get [S$0._position$2]() {
      return this.position;
    }
    set [S$0._position$2](value) {
      this.position = value;
    }
    get [S$0.$quotes]() {
      return this[S$0._quotes];
    }
    set [S$0.$quotes](value) {
      this[S$0._quotes] = value == null ? "" : value;
    }
    get [S$0._quotes]() {
      return this.quotes;
    }
    set [S$0._quotes](value) {
      this.quotes = value;
    }
    get [$right]() {
      return this[S$0._right$2];
    }
    set [$right](value) {
      this[S$0._right$2] = value == null ? "" : value;
    }
    get [S$0._right$2]() {
      return this.right;
    }
    set [S$0._right$2](value) {
      this.right = value;
    }
    get [S$0.$tableLayout]() {
      return this[S$0._tableLayout];
    }
    set [S$0.$tableLayout](value) {
      this[S$0._tableLayout] = value == null ? "" : value;
    }
    get [S$0._tableLayout]() {
      return this.tableLayout;
    }
    set [S$0._tableLayout](value) {
      this.tableLayout = value;
    }
    get [S$.$textAlign]() {
      return this[S$0._textAlign];
    }
    set [S$.$textAlign](value) {
      this[S$0._textAlign] = value == null ? "" : value;
    }
    get [S$0._textAlign]() {
      return this.textAlign;
    }
    set [S$0._textAlign](value) {
      this.textAlign = value;
    }
    get [S$0.$textDecoration]() {
      return this[S$0._textDecoration];
    }
    set [S$0.$textDecoration](value) {
      this[S$0._textDecoration] = value == null ? "" : value;
    }
    get [S$0._textDecoration]() {
      return this.textDecoration;
    }
    set [S$0._textDecoration](value) {
      this.textDecoration = value;
    }
    get [S$0.$textIndent]() {
      return this[S$0._textIndent];
    }
    set [S$0.$textIndent](value) {
      this[S$0._textIndent] = value == null ? "" : value;
    }
    get [S$0._textIndent]() {
      return this.textIndent;
    }
    set [S$0._textIndent](value) {
      this.textIndent = value;
    }
    get [S$0.$textTransform]() {
      return this[S$0._textTransform];
    }
    set [S$0.$textTransform](value) {
      this[S$0._textTransform] = value == null ? "" : value;
    }
    get [S$0._textTransform]() {
      return this.textTransform;
    }
    set [S$0._textTransform](value) {
      this.textTransform = value;
    }
    get [$top]() {
      return this[S$0._top];
    }
    set [$top](value) {
      this[S$0._top] = value == null ? "" : value;
    }
    get [S$0._top]() {
      return this.top;
    }
    set [S$0._top](value) {
      this.top = value;
    }
    get [S$0.$unicodeBidi]() {
      return this[S$0._unicodeBidi];
    }
    set [S$0.$unicodeBidi](value) {
      this[S$0._unicodeBidi] = value == null ? "" : value;
    }
    get [S$0._unicodeBidi]() {
      return this.unicodeBidi;
    }
    set [S$0._unicodeBidi](value) {
      this.unicodeBidi = value;
    }
    get [S$0.$verticalAlign]() {
      return this[S$0._verticalAlign];
    }
    set [S$0.$verticalAlign](value) {
      this[S$0._verticalAlign] = value == null ? "" : value;
    }
    get [S$0._verticalAlign]() {
      return this.verticalAlign;
    }
    set [S$0._verticalAlign](value) {
      this.verticalAlign = value;
    }
    get [S$0.$visibility]() {
      return this[S$0._visibility];
    }
    set [S$0.$visibility](value) {
      this[S$0._visibility] = value == null ? "" : value;
    }
    get [S$0._visibility]() {
      return this.visibility;
    }
    set [S$0._visibility](value) {
      this.visibility = value;
    }
    get [S$0.$whiteSpace]() {
      return this[S$0._whiteSpace];
    }
    set [S$0.$whiteSpace](value) {
      this[S$0._whiteSpace] = value == null ? "" : value;
    }
    get [S$0._whiteSpace]() {
      return this.whiteSpace;
    }
    set [S$0._whiteSpace](value) {
      this.whiteSpace = value;
    }
    get [$width]() {
      return this[S$0._width$1];
    }
    set [$width](value) {
      this[S$0._width$1] = value == null ? "" : value;
    }
    get [S$0._width$1]() {
      return this.width;
    }
    set [S$0._width$1](value) {
      this.width = value;
    }
    get [S$0.$wordSpacing]() {
      return this[S$0._wordSpacing];
    }
    set [S$0.$wordSpacing](value) {
      this[S$0._wordSpacing] = value == null ? "" : value;
    }
    get [S$0._wordSpacing]() {
      return this.wordSpacing;
    }
    set [S$0._wordSpacing](value) {
      this.wordSpacing = value;
    }
    get [S$0.$zIndex]() {
      return this[S$0._zIndex];
    }
    set [S$0.$zIndex](value) {
      this[S$0._zIndex] = value == null ? "" : value;
    }
    get [S$0._zIndex]() {
      return this.zIndex;
    }
    set [S$0._zIndex](value) {
      this.zIndex = value;
    }
  };
  dart.addRtiResources(html$.CssStyleDeclaration, ["html|CssStyleDeclaration"]);
  dart.setMethodSignature(html$.CssStyleDeclaration, () => dart.global.Object.setPrototypeOf({
    [S$.$getPropertyValue]: T$.StringToString(),
    [S$._getPropertyValueHelper]: T$.StringToString(),
    [S$.$supportsProperty]: T$.StringTobool(),
    [S$._supportsProperty]: T$.StringTobool(),
    [S$.$setProperty]: T$4.StringAndStringNAndStringNTovoid(),
    [S$._browserPropertyName]: T$.StringToString(),
    [S$._supportedBrowserPropertyName]: T$.StringToString(),
    [S$._setPropertyHelper]: T$4.StringAndStringNAndStringNTovoid(),
    [S$.$getPropertyPriority]: T$.StringToString(),
    [S$._getPropertyValue]: T$.StringToString(),
    [S$.$item]: T$.intToString(),
    [S$.$removeProperty]: T$.StringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CssStyleDeclaration))));
  dart.setStaticMethodSignature(html$.CssStyleDeclaration, () => ['new', 'css', '_readCache', '_writeCache', '_camelCase', '__']);
  dart.setGetterSignature(html$.CssStyleDeclaration, () => dart.global.Object.setPrototypeOf({
    [S$.$cssFloat]: T$.StringN(),
    [S$.$cssText]: T$.StringN(),
    [$length]: T$.int(),
    [S$.$parentRule]: T$4.CssRuleN(),
    [S$._background]: T$.String(),
    [S$._backgroundAttachment]: T$.String(),
    [S$._backgroundColor]: T$.String(),
    [S$._backgroundImage]: T$.String(),
    [S$._backgroundPosition]: T$.String(),
    [S$._backgroundRepeat]: T$.String(),
    [S$._border]: T$.String(),
    [S$._borderBottom]: T$.String(),
    [S$._borderBottomColor]: T$.String(),
    [S$._borderBottomStyle]: T$.String(),
    [S$._borderBottomWidth]: T$.String(),
    [S$0._borderCollapse]: T$.String(),
    [S$0._borderColor]: T$.String(),
    [S$0._borderLeft]: T$.String(),
    [S$0._borderLeftColor]: T$.String(),
    [S$0._borderLeftStyle]: T$.String(),
    [S$0._borderLeftWidth]: T$.String(),
    [S$0._borderRight]: T$.String(),
    [S$0._borderRightColor]: T$.String(),
    [S$0._borderRightStyle]: T$.String(),
    [S$0._borderRightWidth]: T$.String(),
    [S$0._borderSpacing]: T$.String(),
    [S$0._borderStyle]: T$.String(),
    [S$0._borderTop]: T$.String(),
    [S$0._borderTopColor]: T$.String(),
    [S$0._borderTopStyle]: T$.String(),
    [S$0._borderTopWidth]: T$.String(),
    [S$0._borderWidth]: T$.String(),
    [S$0._bottom]: T$.String(),
    [S$0._captionSide]: T$.String(),
    [S$0._clear$3]: T$.String(),
    [S$0._clip]: T$.String(),
    [S$0._color]: T$.String(),
    [S$0._content]: T$.String(),
    [S$0._cursor]: T$.String(),
    [S$0._direction]: T$.String(),
    [S$0._display]: T$.String(),
    [S$0._emptyCells]: T$.String(),
    [S$0._font]: T$.String(),
    [S$0._fontFamily]: T$.String(),
    [S$0._fontSize]: T$.String(),
    [S$0._fontStyle]: T$.String(),
    [S$0._fontVariant]: T$.String(),
    [S$0._fontWeight]: T$.String(),
    [S$0._height$1]: T$.String(),
    [S$0._left$2]: T$.String(),
    [S$0._letterSpacing]: T$.String(),
    [S$0._lineHeight]: T$.String(),
    [S$0._listStyle]: T$.String(),
    [S$0._listStyleImage]: T$.String(),
    [S$0._listStylePosition]: T$.String(),
    [S$0._listStyleType]: T$.String(),
    [S$0._margin]: T$.String(),
    [S$0._marginBottom]: T$.String(),
    [S$0._marginLeft]: T$.String(),
    [S$0._marginRight]: T$.String(),
    [S$0._marginTop]: T$.String(),
    [S$0._maxHeight]: T$.String(),
    [S$0._maxWidth]: T$.String(),
    [S$0._minHeight]: T$.String(),
    [S$0._minWidth]: T$.String(),
    [S$0._outline]: T$.String(),
    [S$0._outlineColor]: T$.String(),
    [S$0._outlineStyle]: T$.String(),
    [S$0._outlineWidth]: T$.String(),
    [S$0._overflow]: T$.String(),
    [S$0._padding]: T$.String(),
    [S$0._paddingBottom]: T$.String(),
    [S$0._paddingLeft]: T$.String(),
    [S$0._paddingRight]: T$.String(),
    [S$0._paddingTop]: T$.String(),
    [S$0._pageBreakAfter]: T$.String(),
    [S$0._pageBreakBefore]: T$.String(),
    [S$0._pageBreakInside]: T$.String(),
    [S$0._position$2]: T$.String(),
    [S$0._quotes]: T$.String(),
    [S$0._right$2]: T$.String(),
    [S$0._tableLayout]: T$.String(),
    [S$0._textAlign]: T$.String(),
    [S$0._textDecoration]: T$.String(),
    [S$0._textIndent]: T$.String(),
    [S$0._textTransform]: T$.String(),
    [S$0._top]: T$.String(),
    [S$0._unicodeBidi]: T$.String(),
    [S$0._verticalAlign]: T$.String(),
    [S$0._visibility]: T$.String(),
    [S$0._whiteSpace]: T$.String(),
    [S$0._width$1]: T$.String(),
    [S$0._wordSpacing]: T$.String(),
    [S$0._zIndex]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssStyleDeclaration))));
  dart.setSetterSignature(html$.CssStyleDeclaration, () => dart.global.Object.setPrototypeOf({
    [S$.$cssFloat]: T$.StringN(),
    [S$.$cssText]: T$.StringN(),
    [S$.$background]: T$.StringN(),
    [S$._background]: T$.String(),
    [S$.$backgroundAttachment]: T$.StringN(),
    [S$._backgroundAttachment]: T$.String(),
    [S$.$backgroundColor]: T$.StringN(),
    [S$._backgroundColor]: T$.String(),
    [S$.$backgroundImage]: T$.StringN(),
    [S$._backgroundImage]: T$.String(),
    [S$.$backgroundPosition]: T$.StringN(),
    [S$._backgroundPosition]: T$.String(),
    [S$.$backgroundRepeat]: T$.StringN(),
    [S$._backgroundRepeat]: T$.String(),
    [S$.$border]: T$.StringN(),
    [S$._border]: T$.String(),
    [S$.$borderBottom]: T$.StringN(),
    [S$._borderBottom]: T$.String(),
    [S$.$borderBottomColor]: T$.StringN(),
    [S$._borderBottomColor]: T$.String(),
    [S$.$borderBottomStyle]: T$.StringN(),
    [S$._borderBottomStyle]: T$.String(),
    [S$.$borderBottomWidth]: T$.StringN(),
    [S$._borderBottomWidth]: T$.String(),
    [S$0.$borderCollapse]: T$.StringN(),
    [S$0._borderCollapse]: T$.String(),
    [S$0.$borderColor]: T$.StringN(),
    [S$0._borderColor]: T$.String(),
    [S$0.$borderLeft]: T$.StringN(),
    [S$0._borderLeft]: T$.String(),
    [S$0.$borderLeftColor]: T$.StringN(),
    [S$0._borderLeftColor]: T$.String(),
    [S$0.$borderLeftStyle]: T$.StringN(),
    [S$0._borderLeftStyle]: T$.String(),
    [S$0.$borderLeftWidth]: T$.StringN(),
    [S$0._borderLeftWidth]: T$.String(),
    [S$0.$borderRight]: T$.StringN(),
    [S$0._borderRight]: T$.String(),
    [S$0.$borderRightColor]: T$.StringN(),
    [S$0._borderRightColor]: T$.String(),
    [S$0.$borderRightStyle]: T$.StringN(),
    [S$0._borderRightStyle]: T$.String(),
    [S$0.$borderRightWidth]: T$.StringN(),
    [S$0._borderRightWidth]: T$.String(),
    [S$0.$borderSpacing]: T$.StringN(),
    [S$0._borderSpacing]: T$.String(),
    [S$0.$borderStyle]: T$.StringN(),
    [S$0._borderStyle]: T$.String(),
    [S$0.$borderTop]: T$.StringN(),
    [S$0._borderTop]: T$.String(),
    [S$0.$borderTopColor]: T$.StringN(),
    [S$0._borderTopColor]: T$.String(),
    [S$0.$borderTopStyle]: T$.StringN(),
    [S$0._borderTopStyle]: T$.String(),
    [S$0.$borderTopWidth]: T$.StringN(),
    [S$0._borderTopWidth]: T$.String(),
    [S$0.$borderWidth]: T$.StringN(),
    [S$0._borderWidth]: T$.String(),
    [$bottom]: T$.StringN(),
    [S$0._bottom]: T$.String(),
    [S$0.$captionSide]: T$.StringN(),
    [S$0._captionSide]: T$.String(),
    [$clear]: T$.StringN(),
    [S$0._clear$3]: T$.String(),
    [S$.$clip]: T$.StringN(),
    [S$0._clip]: T$.String(),
    [S$0.$color]: T$.StringN(),
    [S$0._color]: T$.String(),
    [S$0.$content]: T$.StringN(),
    [S$0._content]: T$.String(),
    [S$0.$cursor]: T$.StringN(),
    [S$0._cursor]: T$.String(),
    [S.$direction]: T$.StringN(),
    [S$0._direction]: T$.String(),
    [S$0.$display]: T$.StringN(),
    [S$0._display]: T$.String(),
    [S$0.$emptyCells]: T$.StringN(),
    [S$0._emptyCells]: T$.String(),
    [S$.$font]: T$.StringN(),
    [S$0._font]: T$.String(),
    [S$0.$fontFamily]: T$.StringN(),
    [S$0._fontFamily]: T$.String(),
    [S$0.$fontSize]: T$.StringN(),
    [S$0._fontSize]: T$.String(),
    [S$0.$fontStyle]: T$.StringN(),
    [S$0._fontStyle]: T$.String(),
    [S$0.$fontVariant]: T$.StringN(),
    [S$0._fontVariant]: T$.String(),
    [S$0.$fontWeight]: T$.StringN(),
    [S$0._fontWeight]: T$.String(),
    [$height]: T$.StringN(),
    [S$0._height$1]: T$.String(),
    [$left]: T$.StringN(),
    [S$0._left$2]: T$.String(),
    [S$0.$letterSpacing]: T$.StringN(),
    [S$0._letterSpacing]: T$.String(),
    [S$0.$lineHeight]: T$.StringN(),
    [S$0._lineHeight]: T$.String(),
    [S$0.$listStyle]: T$.StringN(),
    [S$0._listStyle]: T$.String(),
    [S$0.$listStyleImage]: T$.StringN(),
    [S$0._listStyleImage]: T$.String(),
    [S$0.$listStylePosition]: T$.StringN(),
    [S$0._listStylePosition]: T$.String(),
    [S$0.$listStyleType]: T$.StringN(),
    [S$0._listStyleType]: T$.String(),
    [S$0.$margin]: T$.StringN(),
    [S$0._margin]: T$.String(),
    [S$0.$marginBottom]: T$.StringN(),
    [S$0._marginBottom]: T$.String(),
    [S$0.$marginLeft]: T$.StringN(),
    [S$0._marginLeft]: T$.String(),
    [S$0.$marginRight]: T$.StringN(),
    [S$0._marginRight]: T$.String(),
    [S$0.$marginTop]: T$.StringN(),
    [S$0._marginTop]: T$.String(),
    [S$0.$maxHeight]: T$.StringN(),
    [S$0._maxHeight]: T$.String(),
    [S$0.$maxWidth]: T$.StringN(),
    [S$0._maxWidth]: T$.String(),
    [S$0.$minHeight]: T$.StringN(),
    [S$0._minHeight]: T$.String(),
    [S$0.$minWidth]: T$.StringN(),
    [S$0._minWidth]: T$.String(),
    [S$0.$outline]: T$.StringN(),
    [S$0._outline]: T$.String(),
    [S$0.$outlineColor]: T$.StringN(),
    [S$0._outlineColor]: T$.String(),
    [S$0.$outlineStyle]: T$.StringN(),
    [S$0._outlineStyle]: T$.String(),
    [S$0.$outlineWidth]: T$.StringN(),
    [S$0._outlineWidth]: T$.String(),
    [S$0.$overflow]: T$.StringN(),
    [S$0._overflow]: T$.String(),
    [S$0.$padding]: T$.StringN(),
    [S$0._padding]: T$.String(),
    [S$0.$paddingBottom]: T$.StringN(),
    [S$0._paddingBottom]: T$.String(),
    [S$0.$paddingLeft]: T$.StringN(),
    [S$0._paddingLeft]: T$.String(),
    [S$0.$paddingRight]: T$.StringN(),
    [S$0._paddingRight]: T$.String(),
    [S$0.$paddingTop]: T$.StringN(),
    [S$0._paddingTop]: T$.String(),
    [S$0.$pageBreakAfter]: T$.StringN(),
    [S$0._pageBreakAfter]: T$.String(),
    [S$0.$pageBreakBefore]: T$.StringN(),
    [S$0._pageBreakBefore]: T$.String(),
    [S$0.$pageBreakInside]: T$.StringN(),
    [S$0._pageBreakInside]: T$.String(),
    [S$0.$position]: T$.StringN(),
    [S$0._position$2]: T$.String(),
    [S$0.$quotes]: T$.StringN(),
    [S$0._quotes]: T$.String(),
    [$right]: T$.StringN(),
    [S$0._right$2]: T$.String(),
    [S$0.$tableLayout]: T$.StringN(),
    [S$0._tableLayout]: T$.String(),
    [S$.$textAlign]: T$.StringN(),
    [S$0._textAlign]: T$.String(),
    [S$0.$textDecoration]: T$.StringN(),
    [S$0._textDecoration]: T$.String(),
    [S$0.$textIndent]: T$.StringN(),
    [S$0._textIndent]: T$.String(),
    [S$0.$textTransform]: T$.StringN(),
    [S$0._textTransform]: T$.String(),
    [$top]: T$.StringN(),
    [S$0._top]: T$.String(),
    [S$0.$unicodeBidi]: T$.StringN(),
    [S$0._unicodeBidi]: T$.String(),
    [S$0.$verticalAlign]: T$.StringN(),
    [S$0._verticalAlign]: T$.String(),
    [S$0.$visibility]: T$.StringN(),
    [S$0._visibility]: T$.String(),
    [S$0.$whiteSpace]: T$.StringN(),
    [S$0._whiteSpace]: T$.String(),
    [$width]: T$.StringN(),
    [S$0._width$1]: T$.String(),
    [S$0.$wordSpacing]: T$.StringN(),
    [S$0._wordSpacing]: T$.String(),
    [S$0.$zIndex]: T$.StringN(),
    [S$0._zIndex]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssStyleDeclaration))));
  dart.setStaticGetterSignature(html$.CssStyleDeclaration, () => ['supportsTransitions']);
  dart.setLibraryUri(html$.CssStyleDeclaration, I[167]);
  dart.setStaticFieldSignature(html$.CssStyleDeclaration, () => ['_propertyCache']);
  dart.defineLazy(html$.CssStyleDeclaration, {
    /*html$.CssStyleDeclaration._propertyCache*/get _propertyCache() {
      return {};
    }
  }, false);
  dart.registerExtension("CSSStyleDeclaration", html$.CssStyleDeclaration);
  dart.registerExtension("MSStyleCSSProperties", html$.CssStyleDeclaration);
  dart.registerExtension("CSS2Properties", html$.CssStyleDeclaration);
  const Object_CssStyleDeclarationBase$36 = class Object_CssStyleDeclarationBase extends core.Object {};
  (Object_CssStyleDeclarationBase$36.new = function() {
  }).prototype = Object_CssStyleDeclarationBase$36.prototype;
  dart.applyMixin(Object_CssStyleDeclarationBase$36, html$.CssStyleDeclarationBase);
  html$._CssStyleDeclarationSet = class _CssStyleDeclarationSet extends Object_CssStyleDeclarationBase$36 {
    static ['_#new#tearOff'](_elementIterable) {
      if (_elementIterable == null) dart.nullFailed(I[166], 5442, 32, "_elementIterable");
      return new html$._CssStyleDeclarationSet.new(_elementIterable);
    }
    getPropertyValue(propertyName) {
      if (propertyName == null) dart.nullFailed(I[166], 5446, 34, "propertyName");
      return this[S$0._elementCssStyleDeclarationSetIterable][$first][S$.$getPropertyValue](propertyName);
    }
    setProperty(propertyName, value, priority = null) {
      if (propertyName == null) dart.nullFailed(I[166], 5450, 27, "propertyName");
      this[S$0._elementCssStyleDeclarationSetIterable][$forEach](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 5452, 19, "e");
        return e[S$.$setProperty](propertyName, value, priority);
      }, T$4.CssStyleDeclarationTovoid()));
    }
    [S$0._setAll](propertyName, value) {
      if (propertyName == null) dart.nullFailed(I[166], 5455, 23, "propertyName");
      value = value == null ? "" : value;
      for (let element of this[S$0._elementIterable]) {
        element.style[propertyName] = value;
      }
    }
    set background(value) {
      if (value == null) dart.nullFailed(I[166], 5463, 25, "value");
      this[S$0._setAll]("background", value);
    }
    get background() {
      return super.background;
    }
    set backgroundAttachment(value) {
      if (value == null) dart.nullFailed(I[166], 5468, 35, "value");
      this[S$0._setAll]("backgroundAttachment", value);
    }
    get backgroundAttachment() {
      return super.backgroundAttachment;
    }
    set backgroundColor(value) {
      if (value == null) dart.nullFailed(I[166], 5473, 30, "value");
      this[S$0._setAll]("backgroundColor", value);
    }
    get backgroundColor() {
      return super.backgroundColor;
    }
    set backgroundImage(value) {
      if (value == null) dart.nullFailed(I[166], 5478, 30, "value");
      this[S$0._setAll]("backgroundImage", value);
    }
    get backgroundImage() {
      return super.backgroundImage;
    }
    set backgroundPosition(value) {
      if (value == null) dart.nullFailed(I[166], 5483, 33, "value");
      this[S$0._setAll]("backgroundPosition", value);
    }
    get backgroundPosition() {
      return super.backgroundPosition;
    }
    set backgroundRepeat(value) {
      if (value == null) dart.nullFailed(I[166], 5488, 31, "value");
      this[S$0._setAll]("backgroundRepeat", value);
    }
    get backgroundRepeat() {
      return super.backgroundRepeat;
    }
    set border(value) {
      if (value == null) dart.nullFailed(I[166], 5493, 21, "value");
      this[S$0._setAll]("border", value);
    }
    get border() {
      return super.border;
    }
    set borderBottom(value) {
      if (value == null) dart.nullFailed(I[166], 5498, 27, "value");
      this[S$0._setAll]("borderBottom", value);
    }
    get borderBottom() {
      return super.borderBottom;
    }
    set borderBottomColor(value) {
      if (value == null) dart.nullFailed(I[166], 5503, 32, "value");
      this[S$0._setAll]("borderBottomColor", value);
    }
    get borderBottomColor() {
      return super.borderBottomColor;
    }
    set borderBottomStyle(value) {
      if (value == null) dart.nullFailed(I[166], 5508, 32, "value");
      this[S$0._setAll]("borderBottomStyle", value);
    }
    get borderBottomStyle() {
      return super.borderBottomStyle;
    }
    set borderBottomWidth(value) {
      if (value == null) dart.nullFailed(I[166], 5513, 32, "value");
      this[S$0._setAll]("borderBottomWidth", value);
    }
    get borderBottomWidth() {
      return super.borderBottomWidth;
    }
    set borderCollapse(value) {
      if (value == null) dart.nullFailed(I[166], 5518, 29, "value");
      this[S$0._setAll]("borderCollapse", value);
    }
    get borderCollapse() {
      return super.borderCollapse;
    }
    set borderColor(value) {
      if (value == null) dart.nullFailed(I[166], 5523, 26, "value");
      this[S$0._setAll]("borderColor", value);
    }
    get borderColor() {
      return super.borderColor;
    }
    set borderLeft(value) {
      if (value == null) dart.nullFailed(I[166], 5528, 25, "value");
      this[S$0._setAll]("borderLeft", value);
    }
    get borderLeft() {
      return super.borderLeft;
    }
    set borderLeftColor(value) {
      if (value == null) dart.nullFailed(I[166], 5533, 30, "value");
      this[S$0._setAll]("borderLeftColor", value);
    }
    get borderLeftColor() {
      return super.borderLeftColor;
    }
    set borderLeftStyle(value) {
      if (value == null) dart.nullFailed(I[166], 5538, 30, "value");
      this[S$0._setAll]("borderLeftStyle", value);
    }
    get borderLeftStyle() {
      return super.borderLeftStyle;
    }
    set borderLeftWidth(value) {
      if (value == null) dart.nullFailed(I[166], 5543, 30, "value");
      this[S$0._setAll]("borderLeftWidth", value);
    }
    get borderLeftWidth() {
      return super.borderLeftWidth;
    }
    set borderRight(value) {
      if (value == null) dart.nullFailed(I[166], 5548, 26, "value");
      this[S$0._setAll]("borderRight", value);
    }
    get borderRight() {
      return super.borderRight;
    }
    set borderRightColor(value) {
      if (value == null) dart.nullFailed(I[166], 5553, 31, "value");
      this[S$0._setAll]("borderRightColor", value);
    }
    get borderRightColor() {
      return super.borderRightColor;
    }
    set borderRightStyle(value) {
      if (value == null) dart.nullFailed(I[166], 5558, 31, "value");
      this[S$0._setAll]("borderRightStyle", value);
    }
    get borderRightStyle() {
      return super.borderRightStyle;
    }
    set borderRightWidth(value) {
      if (value == null) dart.nullFailed(I[166], 5563, 31, "value");
      this[S$0._setAll]("borderRightWidth", value);
    }
    get borderRightWidth() {
      return super.borderRightWidth;
    }
    set borderSpacing(value) {
      if (value == null) dart.nullFailed(I[166], 5568, 28, "value");
      this[S$0._setAll]("borderSpacing", value);
    }
    get borderSpacing() {
      return super.borderSpacing;
    }
    set borderStyle(value) {
      if (value == null) dart.nullFailed(I[166], 5573, 26, "value");
      this[S$0._setAll]("borderStyle", value);
    }
    get borderStyle() {
      return super.borderStyle;
    }
    set borderTop(value) {
      if (value == null) dart.nullFailed(I[166], 5578, 24, "value");
      this[S$0._setAll]("borderTop", value);
    }
    get borderTop() {
      return super.borderTop;
    }
    set borderTopColor(value) {
      if (value == null) dart.nullFailed(I[166], 5583, 29, "value");
      this[S$0._setAll]("borderTopColor", value);
    }
    get borderTopColor() {
      return super.borderTopColor;
    }
    set borderTopStyle(value) {
      if (value == null) dart.nullFailed(I[166], 5588, 29, "value");
      this[S$0._setAll]("borderTopStyle", value);
    }
    get borderTopStyle() {
      return super.borderTopStyle;
    }
    set borderTopWidth(value) {
      if (value == null) dart.nullFailed(I[166], 5593, 29, "value");
      this[S$0._setAll]("borderTopWidth", value);
    }
    get borderTopWidth() {
      return super.borderTopWidth;
    }
    set borderWidth(value) {
      if (value == null) dart.nullFailed(I[166], 5598, 26, "value");
      this[S$0._setAll]("borderWidth", value);
    }
    get borderWidth() {
      return super.borderWidth;
    }
    set bottom(value) {
      if (value == null) dart.nullFailed(I[166], 5603, 21, "value");
      this[S$0._setAll]("bottom", value);
    }
    get bottom() {
      return super.bottom;
    }
    set captionSide(value) {
      if (value == null) dart.nullFailed(I[166], 5608, 26, "value");
      this[S$0._setAll]("captionSide", value);
    }
    get captionSide() {
      return super.captionSide;
    }
    set clear(value) {
      if (value == null) dart.nullFailed(I[166], 5613, 20, "value");
      this[S$0._setAll]("clear", value);
    }
    get clear() {
      return super.clear;
    }
    set clip(value) {
      if (value == null) dart.nullFailed(I[166], 5618, 19, "value");
      this[S$0._setAll]("clip", value);
    }
    get clip() {
      return super.clip;
    }
    set color(value) {
      if (value == null) dart.nullFailed(I[166], 5623, 20, "value");
      this[S$0._setAll]("color", value);
    }
    get color() {
      return super.color;
    }
    set content(value) {
      if (value == null) dart.nullFailed(I[166], 5628, 22, "value");
      this[S$0._setAll]("content", value);
    }
    get content() {
      return super.content;
    }
    set cursor(value) {
      if (value == null) dart.nullFailed(I[166], 5633, 21, "value");
      this[S$0._setAll]("cursor", value);
    }
    get cursor() {
      return super.cursor;
    }
    set direction(value) {
      if (value == null) dart.nullFailed(I[166], 5638, 24, "value");
      this[S$0._setAll]("direction", value);
    }
    get direction() {
      return super.direction;
    }
    set display(value) {
      if (value == null) dart.nullFailed(I[166], 5643, 22, "value");
      this[S$0._setAll]("display", value);
    }
    get display() {
      return super.display;
    }
    set emptyCells(value) {
      if (value == null) dart.nullFailed(I[166], 5648, 25, "value");
      this[S$0._setAll]("emptyCells", value);
    }
    get emptyCells() {
      return super.emptyCells;
    }
    set font(value) {
      if (value == null) dart.nullFailed(I[166], 5653, 19, "value");
      this[S$0._setAll]("font", value);
    }
    get font() {
      return super.font;
    }
    set fontFamily(value) {
      if (value == null) dart.nullFailed(I[166], 5658, 25, "value");
      this[S$0._setAll]("fontFamily", value);
    }
    get fontFamily() {
      return super.fontFamily;
    }
    set fontSize(value) {
      if (value == null) dart.nullFailed(I[166], 5663, 23, "value");
      this[S$0._setAll]("fontSize", value);
    }
    get fontSize() {
      return super.fontSize;
    }
    set fontStyle(value) {
      if (value == null) dart.nullFailed(I[166], 5668, 24, "value");
      this[S$0._setAll]("fontStyle", value);
    }
    get fontStyle() {
      return super.fontStyle;
    }
    set fontVariant(value) {
      if (value == null) dart.nullFailed(I[166], 5673, 26, "value");
      this[S$0._setAll]("fontVariant", value);
    }
    get fontVariant() {
      return super.fontVariant;
    }
    set fontWeight(value) {
      if (value == null) dart.nullFailed(I[166], 5678, 25, "value");
      this[S$0._setAll]("fontWeight", value);
    }
    get fontWeight() {
      return super.fontWeight;
    }
    set height(value) {
      if (value == null) dart.nullFailed(I[166], 5683, 21, "value");
      this[S$0._setAll]("height", value);
    }
    get height() {
      return super.height;
    }
    set left(value) {
      if (value == null) dart.nullFailed(I[166], 5688, 19, "value");
      this[S$0._setAll]("left", value);
    }
    get left() {
      return super.left;
    }
    set letterSpacing(value) {
      if (value == null) dart.nullFailed(I[166], 5693, 28, "value");
      this[S$0._setAll]("letterSpacing", value);
    }
    get letterSpacing() {
      return super.letterSpacing;
    }
    set lineHeight(value) {
      if (value == null) dart.nullFailed(I[166], 5698, 25, "value");
      this[S$0._setAll]("lineHeight", value);
    }
    get lineHeight() {
      return super.lineHeight;
    }
    set listStyle(value) {
      if (value == null) dart.nullFailed(I[166], 5703, 24, "value");
      this[S$0._setAll]("listStyle", value);
    }
    get listStyle() {
      return super.listStyle;
    }
    set listStyleImage(value) {
      if (value == null) dart.nullFailed(I[166], 5708, 29, "value");
      this[S$0._setAll]("listStyleImage", value);
    }
    get listStyleImage() {
      return super.listStyleImage;
    }
    set listStylePosition(value) {
      if (value == null) dart.nullFailed(I[166], 5713, 32, "value");
      this[S$0._setAll]("listStylePosition", value);
    }
    get listStylePosition() {
      return super.listStylePosition;
    }
    set listStyleType(value) {
      if (value == null) dart.nullFailed(I[166], 5718, 28, "value");
      this[S$0._setAll]("listStyleType", value);
    }
    get listStyleType() {
      return super.listStyleType;
    }
    set margin(value) {
      if (value == null) dart.nullFailed(I[166], 5723, 21, "value");
      this[S$0._setAll]("margin", value);
    }
    get margin() {
      return super.margin;
    }
    set marginBottom(value) {
      if (value == null) dart.nullFailed(I[166], 5728, 27, "value");
      this[S$0._setAll]("marginBottom", value);
    }
    get marginBottom() {
      return super.marginBottom;
    }
    set marginLeft(value) {
      if (value == null) dart.nullFailed(I[166], 5733, 25, "value");
      this[S$0._setAll]("marginLeft", value);
    }
    get marginLeft() {
      return super.marginLeft;
    }
    set marginRight(value) {
      if (value == null) dart.nullFailed(I[166], 5738, 26, "value");
      this[S$0._setAll]("marginRight", value);
    }
    get marginRight() {
      return super.marginRight;
    }
    set marginTop(value) {
      if (value == null) dart.nullFailed(I[166], 5743, 24, "value");
      this[S$0._setAll]("marginTop", value);
    }
    get marginTop() {
      return super.marginTop;
    }
    set maxHeight(value) {
      if (value == null) dart.nullFailed(I[166], 5748, 24, "value");
      this[S$0._setAll]("maxHeight", value);
    }
    get maxHeight() {
      return super.maxHeight;
    }
    set maxWidth(value) {
      if (value == null) dart.nullFailed(I[166], 5753, 23, "value");
      this[S$0._setAll]("maxWidth", value);
    }
    get maxWidth() {
      return super.maxWidth;
    }
    set minHeight(value) {
      if (value == null) dart.nullFailed(I[166], 5758, 24, "value");
      this[S$0._setAll]("minHeight", value);
    }
    get minHeight() {
      return super.minHeight;
    }
    set minWidth(value) {
      if (value == null) dart.nullFailed(I[166], 5763, 23, "value");
      this[S$0._setAll]("minWidth", value);
    }
    get minWidth() {
      return super.minWidth;
    }
    set outline(value) {
      if (value == null) dart.nullFailed(I[166], 5768, 22, "value");
      this[S$0._setAll]("outline", value);
    }
    get outline() {
      return super.outline;
    }
    set outlineColor(value) {
      if (value == null) dart.nullFailed(I[166], 5773, 27, "value");
      this[S$0._setAll]("outlineColor", value);
    }
    get outlineColor() {
      return super.outlineColor;
    }
    set outlineStyle(value) {
      if (value == null) dart.nullFailed(I[166], 5778, 27, "value");
      this[S$0._setAll]("outlineStyle", value);
    }
    get outlineStyle() {
      return super.outlineStyle;
    }
    set outlineWidth(value) {
      if (value == null) dart.nullFailed(I[166], 5783, 27, "value");
      this[S$0._setAll]("outlineWidth", value);
    }
    get outlineWidth() {
      return super.outlineWidth;
    }
    set overflow(value) {
      if (value == null) dart.nullFailed(I[166], 5788, 23, "value");
      this[S$0._setAll]("overflow", value);
    }
    get overflow() {
      return super.overflow;
    }
    set padding(value) {
      if (value == null) dart.nullFailed(I[166], 5793, 22, "value");
      this[S$0._setAll]("padding", value);
    }
    get padding() {
      return super.padding;
    }
    set paddingBottom(value) {
      if (value == null) dart.nullFailed(I[166], 5798, 28, "value");
      this[S$0._setAll]("paddingBottom", value);
    }
    get paddingBottom() {
      return super.paddingBottom;
    }
    set paddingLeft(value) {
      if (value == null) dart.nullFailed(I[166], 5803, 26, "value");
      this[S$0._setAll]("paddingLeft", value);
    }
    get paddingLeft() {
      return super.paddingLeft;
    }
    set paddingRight(value) {
      if (value == null) dart.nullFailed(I[166], 5808, 27, "value");
      this[S$0._setAll]("paddingRight", value);
    }
    get paddingRight() {
      return super.paddingRight;
    }
    set paddingTop(value) {
      if (value == null) dart.nullFailed(I[166], 5813, 25, "value");
      this[S$0._setAll]("paddingTop", value);
    }
    get paddingTop() {
      return super.paddingTop;
    }
    set pageBreakAfter(value) {
      if (value == null) dart.nullFailed(I[166], 5818, 29, "value");
      this[S$0._setAll]("pageBreakAfter", value);
    }
    get pageBreakAfter() {
      return super.pageBreakAfter;
    }
    set pageBreakBefore(value) {
      if (value == null) dart.nullFailed(I[166], 5823, 30, "value");
      this[S$0._setAll]("pageBreakBefore", value);
    }
    get pageBreakBefore() {
      return super.pageBreakBefore;
    }
    set pageBreakInside(value) {
      if (value == null) dart.nullFailed(I[166], 5828, 30, "value");
      this[S$0._setAll]("pageBreakInside", value);
    }
    get pageBreakInside() {
      return super.pageBreakInside;
    }
    set position(value) {
      if (value == null) dart.nullFailed(I[166], 5833, 23, "value");
      this[S$0._setAll]("position", value);
    }
    get position() {
      return super.position;
    }
    set quotes(value) {
      if (value == null) dart.nullFailed(I[166], 5838, 21, "value");
      this[S$0._setAll]("quotes", value);
    }
    get quotes() {
      return super.quotes;
    }
    set right(value) {
      if (value == null) dart.nullFailed(I[166], 5843, 20, "value");
      this[S$0._setAll]("right", value);
    }
    get right() {
      return super.right;
    }
    set tableLayout(value) {
      if (value == null) dart.nullFailed(I[166], 5848, 26, "value");
      this[S$0._setAll]("tableLayout", value);
    }
    get tableLayout() {
      return super.tableLayout;
    }
    set textAlign(value) {
      if (value == null) dart.nullFailed(I[166], 5853, 24, "value");
      this[S$0._setAll]("textAlign", value);
    }
    get textAlign() {
      return super.textAlign;
    }
    set textDecoration(value) {
      if (value == null) dart.nullFailed(I[166], 5858, 29, "value");
      this[S$0._setAll]("textDecoration", value);
    }
    get textDecoration() {
      return super.textDecoration;
    }
    set textIndent(value) {
      if (value == null) dart.nullFailed(I[166], 5863, 25, "value");
      this[S$0._setAll]("textIndent", value);
    }
    get textIndent() {
      return super.textIndent;
    }
    set textTransform(value) {
      if (value == null) dart.nullFailed(I[166], 5868, 28, "value");
      this[S$0._setAll]("textTransform", value);
    }
    get textTransform() {
      return super.textTransform;
    }
    set top(value) {
      if (value == null) dart.nullFailed(I[166], 5873, 18, "value");
      this[S$0._setAll]("top", value);
    }
    get top() {
      return super.top;
    }
    set unicodeBidi(value) {
      if (value == null) dart.nullFailed(I[166], 5878, 26, "value");
      this[S$0._setAll]("unicodeBidi", value);
    }
    get unicodeBidi() {
      return super.unicodeBidi;
    }
    set verticalAlign(value) {
      if (value == null) dart.nullFailed(I[166], 5883, 28, "value");
      this[S$0._setAll]("verticalAlign", value);
    }
    get verticalAlign() {
      return super.verticalAlign;
    }
    set visibility(value) {
      if (value == null) dart.nullFailed(I[166], 5888, 25, "value");
      this[S$0._setAll]("visibility", value);
    }
    get visibility() {
      return super.visibility;
    }
    set whiteSpace(value) {
      if (value == null) dart.nullFailed(I[166], 5893, 25, "value");
      this[S$0._setAll]("whiteSpace", value);
    }
    get whiteSpace() {
      return super.whiteSpace;
    }
    set width(value) {
      if (value == null) dart.nullFailed(I[166], 5898, 20, "value");
      this[S$0._setAll]("width", value);
    }
    get width() {
      return super.width;
    }
    set wordSpacing(value) {
      if (value == null) dart.nullFailed(I[166], 5903, 26, "value");
      this[S$0._setAll]("wordSpacing", value);
    }
    get wordSpacing() {
      return super.wordSpacing;
    }
    set zIndex(value) {
      if (value == null) dart.nullFailed(I[166], 5908, 21, "value");
      this[S$0._setAll]("zIndex", value);
    }
    get zIndex() {
      return super.zIndex;
    }
  };
  (html$._CssStyleDeclarationSet.new = function(_elementIterable) {
    if (_elementIterable == null) dart.nullFailed(I[166], 5442, 32, "_elementIterable");
    this[S$0._elementIterable] = _elementIterable;
    this[S$0._elementCssStyleDeclarationSetIterable] = G.ListOfElement().of(_elementIterable)[$map](T$4.CssStyleDeclaration(), dart.fn(e => {
      if (e == null) dart.nullFailed(I[166], 5444, 48, "e");
      return e.style;
    }, T$4.ElementToCssStyleDeclaration()));
    ;
  }).prototype = html$._CssStyleDeclarationSet.prototype;
  dart.addRtiResources(html$._CssStyleDeclarationSet, ["html|_CssStyleDeclarationSet"]);
  dart.setMethodSignature(html$._CssStyleDeclarationSet, () => dart.global.Object.setPrototypeOf({
    getPropertyValue: T$.StringToString(),
    [S$.$getPropertyValue]: T$.StringToString(),
    setProperty: T$4.StringAndStringNAndStringNTovoid(),
    [S$.$setProperty]: T$4.StringAndStringNAndStringNTovoid(),
    [S$0._setAll]: T$4.StringAndStringNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._CssStyleDeclarationSet))));
  dart.setLibraryUri(html$._CssStyleDeclarationSet, I[167]);
  dart.setFieldSignature(html$._CssStyleDeclarationSet, () => dart.global.Object.setPrototypeOf({
    [S$0._elementIterable]: {type: T$4.IterableOfElement(), isConst: false, isFinal: true, libraryUri: I[11]},
    [S$0._elementCssStyleDeclarationSetIterable]: {type: T$4.IterableOfCssStyleDeclaration(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._CssStyleDeclarationSet))));
  dart.defineExtensionMethods(html$._CssStyleDeclarationSet, ['getPropertyValue', 'setProperty']);
  dart.defineExtensionAccessors(html$._CssStyleDeclarationSet, [
    'background',
    'backgroundAttachment',
    'backgroundColor',
    'backgroundImage',
    'backgroundPosition',
    'backgroundRepeat',
    'border',
    'borderBottom',
    'borderBottomColor',
    'borderBottomStyle',
    'borderBottomWidth',
    'borderCollapse',
    'borderColor',
    'borderLeft',
    'borderLeftColor',
    'borderLeftStyle',
    'borderLeftWidth',
    'borderRight',
    'borderRightColor',
    'borderRightStyle',
    'borderRightWidth',
    'borderSpacing',
    'borderStyle',
    'borderTop',
    'borderTopColor',
    'borderTopStyle',
    'borderTopWidth',
    'borderWidth',
    'bottom',
    'captionSide',
    'clear',
    'clip',
    'color',
    'content',
    'cursor',
    'direction',
    'display',
    'emptyCells',
    'font',
    'fontFamily',
    'fontSize',
    'fontStyle',
    'fontVariant',
    'fontWeight',
    'height',
    'left',
    'letterSpacing',
    'lineHeight',
    'listStyle',
    'listStyleImage',
    'listStylePosition',
    'listStyleType',
    'margin',
    'marginBottom',
    'marginLeft',
    'marginRight',
    'marginTop',
    'maxHeight',
    'maxWidth',
    'minHeight',
    'minWidth',
    'outline',
    'outlineColor',
    'outlineStyle',
    'outlineWidth',
    'overflow',
    'padding',
    'paddingBottom',
    'paddingLeft',
    'paddingRight',
    'paddingTop',
    'pageBreakAfter',
    'pageBreakBefore',
    'pageBreakInside',
    'position',
    'quotes',
    'right',
    'tableLayout',
    'textAlign',
    'textDecoration',
    'textIndent',
    'textTransform',
    'top',
    'unicodeBidi',
    'verticalAlign',
    'visibility',
    'whiteSpace',
    'width',
    'wordSpacing',
    'zIndex'
  ]);
  html$.CssStyleRule = class CssStyleRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssStyleRule.__();
    }
    get [S$.$selectorText]() {
      return this.selectorText;
    }
    set [S$.$selectorText](value) {
      this.selectorText = value;
    }
    get [S.$style]() {
      return this.style;
    }
  };
  dart.addRtiResources(html$.CssStyleRule, ["html|CssStyleRule"]);
  dart.setStaticMethodSignature(html$.CssStyleRule, () => ['__']);
  dart.setGetterSignature(html$.CssStyleRule, () => dart.global.Object.setPrototypeOf({
    [S$.$selectorText]: T$.String(),
    [S.$style]: T$4.CssStyleDeclaration()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssStyleRule))));
  dart.setSetterSignature(html$.CssStyleRule, () => dart.global.Object.setPrototypeOf({[S$.$selectorText]: T$.String()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssStyleRule))));
  dart.setLibraryUri(html$.CssStyleRule, I[167]);
  dart.registerExtension("CSSStyleRule", html$.CssStyleRule);
  html$.StyleSheet = class StyleSheet extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.StyleSheet.__();
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$href]() {
      return this.href;
    }
    get [S$.$media]() {
      return this.media;
    }
    get [S$0.$ownerNode]() {
      return this.ownerNode;
    }
    get [S$.$parentStyleSheet]() {
      return this.parentStyleSheet;
    }
    get [S.$title]() {
      return this.title;
    }
    get [S.$type]() {
      return this.type;
    }
  };
  dart.addRtiResources(html$.StyleSheet, ["html|StyleSheet"]);
  dart.setStaticMethodSignature(html$.StyleSheet, () => ['__']);
  dart.setGetterSignature(html$.StyleSheet, () => dart.global.Object.setPrototypeOf({
    [S$.$disabled]: T$.boolN(),
    [S$.$href]: T$.StringN(),
    [S$.$media]: T$4.MediaListN(),
    [S$0.$ownerNode]: T$3.NodeN$2(),
    [S$.$parentStyleSheet]: T$4.StyleSheetN(),
    [S.$title]: T$.StringN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.StyleSheet))));
  dart.setSetterSignature(html$.StyleSheet, () => dart.global.Object.setPrototypeOf({[S$.$disabled]: T$.boolN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.StyleSheet))));
  dart.setLibraryUri(html$.StyleSheet, I[167]);
  dart.registerExtension("StyleSheet", html$.StyleSheet);
  html$.CssStyleSheet = class CssStyleSheet extends html$.StyleSheet {
    static ['_#_#tearOff']() {
      return html$.CssStyleSheet.__();
    }
    get [S$.$cssRules]() {
      return this.cssRules;
    }
    get [S$0.$ownerRule]() {
      return this.ownerRule;
    }
    get [S$0.$rules]() {
      return this.rules;
    }
    [S$0.$addRule](...args) {
      return this.addRule.apply(this, args);
    }
    [S$.$deleteRule](...args) {
      return this.deleteRule.apply(this, args);
    }
    [S$.$insertRule](...args) {
      return this.insertRule.apply(this, args);
    }
    [S$0.$removeRule](...args) {
      return this.removeRule.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CssStyleSheet, ["html|CssStyleSheet"]);
  dart.setMethodSignature(html$.CssStyleSheet, () => dart.global.Object.setPrototypeOf({
    [S$0.$addRule]: T$4.StringNAndStringNAndintNToint(),
    [S$.$deleteRule]: T$.intTovoid(),
    [S$.$insertRule]: T$4.StringAndintNToint(),
    [S$0.$removeRule]: T$4.intNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CssStyleSheet))));
  dart.setStaticMethodSignature(html$.CssStyleSheet, () => ['__']);
  dart.setGetterSignature(html$.CssStyleSheet, () => dart.global.Object.setPrototypeOf({
    [S$.$cssRules]: T$4.ListOfCssRule(),
    [S$0.$ownerRule]: T$4.CssRuleN(),
    [S$0.$rules]: T$4.ListNOfCssRule()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssStyleSheet))));
  dart.setLibraryUri(html$.CssStyleSheet, I[167]);
  dart.registerExtension("CSSStyleSheet", html$.CssStyleSheet);
  html$.CssSupportsRule = class CssSupportsRule extends html$.CssConditionRule {
    static ['_#_#tearOff']() {
      return html$.CssSupportsRule.__();
    }
  };
  dart.addRtiResources(html$.CssSupportsRule, ["html|CssSupportsRule"]);
  dart.setStaticMethodSignature(html$.CssSupportsRule, () => ['__']);
  dart.setLibraryUri(html$.CssSupportsRule, I[167]);
  dart.registerExtension("CSSSupportsRule", html$.CssSupportsRule);
  html$.CssTransformValue = class CssTransformValue extends html$.CssStyleValue {
    static ['_#_#tearOff']() {
      return html$.CssTransformValue.__();
    }
    static new(transformComponents = null) {
      if (transformComponents == null) {
        return html$.CssTransformValue._create_1();
      }
      if (T$4.ListOfCssTransformComponent()[_is](transformComponents)) {
        return html$.CssTransformValue._create_2(transformComponents);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](transformComponents = null) {
      return html$.CssTransformValue.new(transformComponents);
    }
    static _create_1() {
      return new CSSTransformValue();
    }
    static _create_2(transformComponents) {
      return new CSSTransformValue(transformComponents);
    }
    get [S$.$is2D]() {
      return this.is2D;
    }
    get [$length]() {
      return this.length;
    }
    [S$0.$componentAtIndex](...args) {
      return this.componentAtIndex.apply(this, args);
    }
    [S$0.$toMatrix](...args) {
      return this.toMatrix.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CssTransformValue, ["html|CssTransformValue"]);
  dart.setMethodSignature(html$.CssTransformValue, () => dart.global.Object.setPrototypeOf({
    [S$0.$componentAtIndex]: T$4.intToCssTransformComponent(),
    [S$0.$toMatrix]: T$4.VoidToDomMatrix()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CssTransformValue))));
  dart.setStaticMethodSignature(html$.CssTransformValue, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.CssTransformValue, () => dart.global.Object.setPrototypeOf({
    [S$.$is2D]: T$.boolN(),
    [$length]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssTransformValue))));
  dart.setLibraryUri(html$.CssTransformValue, I[167]);
  dart.registerExtension("CSSTransformValue", html$.CssTransformValue);
  html$.CssTranslation = class CssTranslation extends html$.CssTransformComponent {
    static ['_#_#tearOff']() {
      return html$.CssTranslation.__();
    }
    static new(x, y, z = null) {
      if (x == null) dart.nullFailed(I[166], 8826, 42, "x");
      if (y == null) dart.nullFailed(I[166], 8826, 61, "y");
      if (T$4.CssNumericValue()[_is](y) && T$4.CssNumericValue()[_is](x) && z == null) {
        return html$.CssTranslation._create_1(x, y);
      }
      if (T$4.CssNumericValue()[_is](z) && T$4.CssNumericValue()[_is](y) && T$4.CssNumericValue()[_is](x)) {
        return html$.CssTranslation._create_2(x, y, z);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](x, y, z = null) {
      if (x == null) dart.nullFailed(I[166], 8826, 42, "x");
      if (y == null) dart.nullFailed(I[166], 8826, 61, "y");
      return html$.CssTranslation.new(x, y, z);
    }
    static _create_1(x, y) {
      return new CSSTranslation(x, y);
    }
    static _create_2(x, y, z) {
      return new CSSTranslation(x, y, z);
    }
    get [S$.$x]() {
      return this.x;
    }
    set [S$.$x](value) {
      this.x = value;
    }
    get [S$.$y]() {
      return this.y;
    }
    set [S$.$y](value) {
      this.y = value;
    }
    get [S$.$z]() {
      return this.z;
    }
    set [S$.$z](value) {
      this.z = value;
    }
  };
  dart.addRtiResources(html$.CssTranslation, ["html|CssTranslation"]);
  dart.setStaticMethodSignature(html$.CssTranslation, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.CssTranslation, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$4.CssNumericValueN(),
    [S$.$y]: T$4.CssNumericValueN(),
    [S$.$z]: T$4.CssNumericValueN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssTranslation))));
  dart.setSetterSignature(html$.CssTranslation, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$4.CssNumericValueN(),
    [S$.$y]: T$4.CssNumericValueN(),
    [S$.$z]: T$4.CssNumericValueN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssTranslation))));
  dart.setLibraryUri(html$.CssTranslation, I[167]);
  dart.registerExtension("CSSTranslation", html$.CssTranslation);
  html$.CssUnitValue = class CssUnitValue extends html$.CssNumericValue {
    static ['_#_#tearOff']() {
      return html$.CssUnitValue.__();
    }
    static new(value, unit) {
      if (value == null) dart.nullFailed(I[166], 8866, 28, "value");
      if (unit == null) dart.nullFailed(I[166], 8866, 42, "unit");
      return html$.CssUnitValue._create_1(value, unit);
    }
    static ['_#new#tearOff'](value, unit) {
      if (value == null) dart.nullFailed(I[166], 8866, 28, "value");
      if (unit == null) dart.nullFailed(I[166], 8866, 42, "unit");
      return html$.CssUnitValue.new(value, unit);
    }
    static _create_1(value, unit) {
      return new CSSUnitValue(value, unit);
    }
    get [S.$type]() {
      return this.type;
    }
    get [S$0.$unit]() {
      return this.unit;
    }
    set [S$0.$unit](value) {
      this.unit = value;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  dart.addRtiResources(html$.CssUnitValue, ["html|CssUnitValue"]);
  dart.setStaticMethodSignature(html$.CssUnitValue, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.CssUnitValue, () => dart.global.Object.setPrototypeOf({
    [S.$type]: T$.StringN(),
    [S$0.$unit]: T$.StringN(),
    [S.$value]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssUnitValue))));
  dart.setSetterSignature(html$.CssUnitValue, () => dart.global.Object.setPrototypeOf({
    [S$0.$unit]: T$.StringN(),
    [S.$value]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssUnitValue))));
  dart.setLibraryUri(html$.CssUnitValue, I[167]);
  dart.registerExtension("CSSUnitValue", html$.CssUnitValue);
  html$.CssUnparsedValue = class CssUnparsedValue extends html$.CssStyleValue {
    static ['_#_#tearOff']() {
      return html$.CssUnparsedValue.__();
    }
    get [$length]() {
      return this.length;
    }
    [S$0.$fragmentAtIndex](...args) {
      return this.fragmentAtIndex.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CssUnparsedValue, ["html|CssUnparsedValue"]);
  dart.setMethodSignature(html$.CssUnparsedValue, () => dart.global.Object.setPrototypeOf({[S$0.$fragmentAtIndex]: T$.intToObjectN()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CssUnparsedValue))));
  dart.setStaticMethodSignature(html$.CssUnparsedValue, () => ['__']);
  dart.setGetterSignature(html$.CssUnparsedValue, () => dart.global.Object.setPrototypeOf({[$length]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssUnparsedValue))));
  dart.setLibraryUri(html$.CssUnparsedValue, I[167]);
  dart.registerExtension("CSSUnparsedValue", html$.CssUnparsedValue);
  html$.CssVariableReferenceValue = class CssVariableReferenceValue extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CssVariableReferenceValue.__();
    }
    get [S$0.$fallback]() {
      return this.fallback;
    }
    get [S$0.$variable]() {
      return this.variable;
    }
  };
  dart.addRtiResources(html$.CssVariableReferenceValue, ["html|CssVariableReferenceValue"]);
  dart.setStaticMethodSignature(html$.CssVariableReferenceValue, () => ['__']);
  dart.setGetterSignature(html$.CssVariableReferenceValue, () => dart.global.Object.setPrototypeOf({
    [S$0.$fallback]: T$4.CssUnparsedValueN(),
    [S$0.$variable]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssVariableReferenceValue))));
  dart.setLibraryUri(html$.CssVariableReferenceValue, I[167]);
  dart.registerExtension("CSSVariableReferenceValue", html$.CssVariableReferenceValue);
  html$.CssViewportRule = class CssViewportRule extends html$.CssRule {
    static ['_#_#tearOff']() {
      return html$.CssViewportRule.__();
    }
    get [S.$style]() {
      return this.style;
    }
  };
  dart.addRtiResources(html$.CssViewportRule, ["html|CssViewportRule"]);
  dart.setStaticMethodSignature(html$.CssViewportRule, () => ['__']);
  dart.setGetterSignature(html$.CssViewportRule, () => dart.global.Object.setPrototypeOf({[S.$style]: T$4.CssStyleDeclarationN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssViewportRule))));
  dart.setLibraryUri(html$.CssViewportRule, I[167]);
  dart.registerExtension("CSSViewportRule", html$.CssViewportRule);
  html$.CssurlImageValue = class CssurlImageValue extends html$.CssImageValue {
    static ['_#_#tearOff']() {
      return html$.CssurlImageValue.__();
    }
    static new(url) {
      if (url == null) dart.nullFailed(I[166], 8936, 35, "url");
      return html$.CssurlImageValue._create_1(url);
    }
    static ['_#new#tearOff'](url) {
      if (url == null) dart.nullFailed(I[166], 8936, 35, "url");
      return html$.CssurlImageValue.new(url);
    }
    static _create_1(url) {
      return new CSSURLImageValue(url);
    }
    get [S$.$url]() {
      return this.url;
    }
  };
  dart.addRtiResources(html$.CssurlImageValue, ["html|CssurlImageValue"]);
  dart.setStaticMethodSignature(html$.CssurlImageValue, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.CssurlImageValue, () => dart.global.Object.setPrototypeOf({[S$.$url]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssurlImageValue))));
  dart.setLibraryUri(html$.CssurlImageValue, I[167]);
  dart.registerExtension("CSSURLImageValue", html$.CssurlImageValue);
  html$.CustomElementRegistry = class CustomElementRegistry extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.CustomElementRegistry.__();
    }
    [S$0.$define](name, constructor, options = null) {
      if (name == null) dart.nullFailed(I[166], 8964, 22, "name");
      if (constructor == null) dart.nullFailed(I[166], 8964, 35, "constructor");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        this[S$0._define_1](name, constructor, options_1);
        return;
      }
      this[S$0._define_2](name, constructor);
      return;
    }
    [S$0._define_1](...args) {
      return this.define.apply(this, args);
    }
    [S$0._define_2](...args) {
      return this.define.apply(this, args);
    }
    [S.$get](...args) {
      return this.get.apply(this, args);
    }
    [S$0.$whenDefined](name) {
      if (name == null) dart.nullFailed(I[166], 8981, 29, "name");
      return js_util.promiseToFuture(T$.dynamic(), this.whenDefined(name));
    }
  };
  dart.addRtiResources(html$.CustomElementRegistry, ["html|CustomElementRegistry"]);
  dart.setMethodSignature(html$.CustomElementRegistry, () => dart.global.Object.setPrototypeOf({
    [S$0.$define]: T$4.StringAndObjectAndMapNTovoid(),
    [S$0._define_1]: T$0.dynamicAnddynamicAnddynamicTovoid(),
    [S$0._define_2]: T$.dynamicAnddynamicTovoid(),
    [S.$get]: T$4.StringToObjectN(),
    [S$0.$whenDefined]: T$4.StringToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CustomElementRegistry))));
  dart.setStaticMethodSignature(html$.CustomElementRegistry, () => ['__']);
  dart.setLibraryUri(html$.CustomElementRegistry, I[167]);
  dart.registerExtension("CustomElementRegistry", html$.CustomElementRegistry);
  html$.CustomEvent = class CustomEvent$ extends html$.Event {
    get [S$0._dartDetail]() {
      return this._dartDetail;
    }
    set [S$0._dartDetail](value) {
      this._dartDetail = value;
    }
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 8995, 30, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 8996, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 8996, 36, "cancelable");
      let detail = opts && 'detail' in opts ? opts.detail : null;
      let e = T$4.CustomEvent()[_as](html$.document[S._createEvent]("CustomEvent"));
      e[S$0._dartDetail] = detail;
      if (T$.List()[_is](detail) || T$.Map()[_is](detail) || typeof detail == 'string' || typeof detail == 'number') {
        try {
          detail = html_common.convertDartToNative_SerializedScriptValue(detail);
          e[S$0._initCustomEvent](type, canBubble, cancelable, detail);
        } catch (t$36$35e) {
          let _ = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](_)) {
            e[S$0._initCustomEvent](type, canBubble, cancelable, null);
          } else
            throw t$36$35e;
        }
      } else {
        e[S$0._initCustomEvent](type, canBubble, cancelable, null);
      }
      return e;
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 8995, 30, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 8996, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 8996, 36, "cancelable");
      let detail = opts && 'detail' in opts ? opts.detail : null;
      return html$.CustomEvent.new(type, {canBubble: canBubble, cancelable: cancelable, detail: detail});
    }
    get [S$.$detail]() {
      if (this[S$0._dartDetail] != null) {
        return this[S$0._dartDetail];
      }
      return this[S$0._detail];
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 9024, 32, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.CustomEvent._create_1(type, eventInitDict_1);
      }
      return html$.CustomEvent._create_2(type);
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 9024, 32, "type");
      return html$.CustomEvent.__(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new CustomEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new CustomEvent(type);
    }
    get [S$0._detail]() {
      return html_common.convertNativeToDart_SerializedScriptValue(this[S$0._get__detail]);
    }
    get [S$0._get__detail]() {
      return this.detail;
    }
    [S$0._initCustomEvent](...args) {
      return this.initCustomEvent.apply(this, args);
    }
  };
  dart.addRtiResources(html$.CustomEvent, ["html|CustomEvent"]);
  dart.setMethodSignature(html$.CustomEvent, () => dart.global.Object.setPrototypeOf({[S$0._initCustomEvent]: T$4.StringAndboolNAndboolN__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CustomEvent))));
  dart.setStaticMethodSignature(html$.CustomEvent, () => ['new', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.CustomEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$detail]: T$.dynamic(),
    [S$0._detail]: T$.dynamic(),
    [S$0._get__detail]: T$.dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CustomEvent))));
  dart.setLibraryUri(html$.CustomEvent, I[167]);
  dart.setFieldSignature(html$.CustomEvent, () => dart.global.Object.setPrototypeOf({[S$0._dartDetail]: {type: T$.dynamic(), isConst: false, isFinal: false}}, dart.getFields(dart.global.Object.getPrototypeOf(html$.CustomEvent))));
  dart.registerExtension("CustomEvent", html$.CustomEvent);
  html$.DListElement = class DListElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.DListElement.__();
    }
    static new() {
      return html$.document.createElement("dl");
    }
    static ['_#new#tearOff']() {
      return html$.DListElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.DListElement.created();
    }
  };
  (html$.DListElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.DListElement).created.call(this);
    ;
  }).prototype = html$.DListElement.prototype;
  dart.addRtiResources(html$.DListElement, ["html|DListElement"]);
  dart.setStaticMethodSignature(html$.DListElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.DListElement, I[167]);
  dart.registerExtension("HTMLDListElement", html$.DListElement);
  html$.DataElement = class DataElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.DataElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.DataElement.created();
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  (html$.DataElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.DataElement).created.call(this);
    ;
  }).prototype = html$.DataElement.prototype;
  dart.addRtiResources(html$.DataElement, ["html|DataElement"]);
  dart.setStaticMethodSignature(html$.DataElement, () => ['__']);
  dart.setGetterSignature(html$.DataElement, () => dart.global.Object.setPrototypeOf({[S.$value]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DataElement))));
  dart.setSetterSignature(html$.DataElement, () => dart.global.Object.setPrototypeOf({[S.$value]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DataElement))));
  dart.setLibraryUri(html$.DataElement, I[167]);
  dart.registerExtension("HTMLDataElement", html$.DataElement);
  html$.DataListElement = class DataListElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.DataListElement.__();
    }
    static new() {
      return T$4.DataListElement()[_as](html$.document[S.$createElement]("datalist"));
    }
    static ['_#new#tearOff']() {
      return html$.DataListElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.DataListElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("datalist");
    }
    get [S$0.$options]() {
      return this.options;
    }
  };
  (html$.DataListElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.DataListElement).created.call(this);
    ;
  }).prototype = html$.DataListElement.prototype;
  dart.addRtiResources(html$.DataListElement, ["html|DataListElement"]);
  dart.setStaticMethodSignature(html$.DataListElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.DataListElement, () => dart.global.Object.setPrototypeOf({[S$0.$options]: T$4.ListNOfNode()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DataListElement))));
  dart.setStaticGetterSignature(html$.DataListElement, () => ['supported']);
  dart.setLibraryUri(html$.DataListElement, I[167]);
  dart.registerExtension("HTMLDataListElement", html$.DataListElement);
  html$.DataTransfer = class DataTransfer$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DataTransfer.__();
    }
    static new() {
      return html$.DataTransfer._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.DataTransfer.new();
    }
    static _create_1() {
      return new DataTransfer();
    }
    get [S$0.$dropEffect]() {
      return this.dropEffect;
    }
    set [S$0.$dropEffect](value) {
      this.dropEffect = value;
    }
    get [S$0.$effectAllowed]() {
      return this.effectAllowed;
    }
    set [S$0.$effectAllowed](value) {
      this.effectAllowed = value;
    }
    get [S$0.$files]() {
      return this.files;
    }
    get [S$0.$items]() {
      return this.items;
    }
    get [S$0.$types]() {
      return this.types;
    }
    [S$0.$clearData](...args) {
      return this.clearData.apply(this, args);
    }
    [S$0.$getData](...args) {
      return this.getData.apply(this, args);
    }
    [S$0.$setData](...args) {
      return this.setData.apply(this, args);
    }
    [S$0.$setDragImage](...args) {
      return this.setDragImage.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DataTransfer, ["html|DataTransfer"]);
  dart.setMethodSignature(html$.DataTransfer, () => dart.global.Object.setPrototypeOf({
    [S$0.$clearData]: T$4.StringNTovoid$1(),
    [S$0.$getData]: T$.StringToString(),
    [S$0.$setData]: T$2.StringAndStringTovoid(),
    [S$0.$setDragImage]: T$4.ElementAndintAndintTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DataTransfer))));
  dart.setStaticMethodSignature(html$.DataTransfer, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.DataTransfer, () => dart.global.Object.setPrototypeOf({
    [S$0.$dropEffect]: T$.StringN(),
    [S$0.$effectAllowed]: T$.StringN(),
    [S$0.$files]: T$4.ListNOfFile(),
    [S$0.$items]: T$4.DataTransferItemListN(),
    [S$0.$types]: T$.ListNOfString()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DataTransfer))));
  dart.setSetterSignature(html$.DataTransfer, () => dart.global.Object.setPrototypeOf({
    [S$0.$dropEffect]: T$.StringN(),
    [S$0.$effectAllowed]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DataTransfer))));
  dart.setLibraryUri(html$.DataTransfer, I[167]);
  dart.registerExtension("DataTransfer", html$.DataTransfer);
  html$.DataTransferItem = class DataTransferItem extends _interceptors.JavaScriptObject {
    [S$0.$getAsEntry]() {
      let entry = dart.nullCast(this[S$0._webkitGetAsEntry](), T$4.Entry());
      if (dart.nullCheck(entry.isFile)) {
        _js_helper.applyExtension("FileEntry", entry);
        _js_helper.applyExtension("webkitFileSystemFileEntry", entry);
        _js_helper.applyExtension("FileSystemFileEntry", entry);
      } else if (dart.nullCheck(entry.isDirectory)) {
        _js_helper.applyExtension("DirectoryEntry", entry);
        _js_helper.applyExtension("webkitFileSystemDirectoryEntry", entry);
        _js_helper.applyExtension("FileSystemDirectoryEntry", entry);
      } else {
        _js_helper.applyExtension("Entry", entry);
        _js_helper.applyExtension("webkitFileSystemEntry", entry);
        _js_helper.applyExtension("FileSystemEntry", entry);
      }
      return entry;
    }
    static ['_#_#tearOff']() {
      return html$.DataTransferItem.__();
    }
    get [S$.$kind]() {
      return this.kind;
    }
    get [S.$type]() {
      return this.type;
    }
    [S$0.$getAsFile](...args) {
      return this.getAsFile.apply(this, args);
    }
    [S$0._webkitGetAsEntry](...args) {
      return this.webkitGetAsEntry.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DataTransferItem, ["html|DataTransferItem"]);
  dart.setMethodSignature(html$.DataTransferItem, () => dart.global.Object.setPrototypeOf({
    [S$0.$getAsEntry]: T$4.VoidToEntry(),
    [S$0.$getAsFile]: T$4.VoidToFileN(),
    [S$0._webkitGetAsEntry]: T$4.VoidToEntryN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DataTransferItem))));
  dart.setStaticMethodSignature(html$.DataTransferItem, () => ['__']);
  dart.setGetterSignature(html$.DataTransferItem, () => dart.global.Object.setPrototypeOf({
    [S$.$kind]: T$.StringN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DataTransferItem))));
  dart.setLibraryUri(html$.DataTransferItem, I[167]);
  dart.registerExtension("DataTransferItem", html$.DataTransferItem);
  html$.DataTransferItemList = class DataTransferItemList extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DataTransferItemList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$add](...args) {
      return this.add.apply(this, args);
    }
    [S$0.$addData](...args) {
      return this.add.apply(this, args);
    }
    [S$0.$addFile](...args) {
      return this.add.apply(this, args);
    }
    [$clear](...args) {
      return this.clear.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [$remove](...args) {
      return this.remove.apply(this, args);
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 9230, 36, "index");
      return this[index];
    }
  };
  dart.addRtiResources(html$.DataTransferItemList, ["html|DataTransferItemList"]);
  dart.setMethodSignature(html$.DataTransferItemList, () => dart.global.Object.setPrototypeOf({
    [$add]: T$4.dynamicAndStringNToDataTransferItemN(),
    [S$0.$addData]: T$4.StringAndStringToDataTransferItemN(),
    [S$0.$addFile]: T$4.FileToDataTransferItemN(),
    [$clear]: T$.VoidTovoid(),
    [S$.$item]: T$4.intToDataTransferItem(),
    [$remove]: T$.intTovoid(),
    [$_get]: T$4.intToDataTransferItem()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DataTransferItemList))));
  dart.setStaticMethodSignature(html$.DataTransferItemList, () => ['__']);
  dart.setGetterSignature(html$.DataTransferItemList, () => dart.global.Object.setPrototypeOf({[$length]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DataTransferItemList))));
  dart.setLibraryUri(html$.DataTransferItemList, I[167]);
  dart.registerExtension("DataTransferItemList", html$.DataTransferItemList);
  html$.WorkerGlobalScope = class WorkerGlobalScope extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.WorkerGlobalScope.__();
    }
    get [S$0.$addressSpace]() {
      return this.addressSpace;
    }
    get [S$0.$caches]() {
      return this.caches;
    }
    get [S$0.$crypto]() {
      return this.crypto;
    }
    get [S$0.$indexedDB]() {
      return this.indexedDB;
    }
    get [S$0.$isSecureContext]() {
      return this.isSecureContext;
    }
    get [S$0.$location]() {
      return this.location;
    }
    get [S$0.$navigator]() {
      return this.navigator;
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$0.$performance]() {
      return this.performance;
    }
    get [S$0.$self]() {
      return this.self;
    }
    [S$.$fetch](input, init = null) {
      let init_dict = null;
      if (init != null) {
        init_dict = html_common.convertDartToNative_Dictionary(init);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.fetch(input, init_dict));
    }
    [S$0.$importScripts](...args) {
      return this.importScripts.apply(this, args);
    }
    [S$0.$atob](...args) {
      return this.atob.apply(this, args);
    }
    [S$0.$btoa](...args) {
      return this.btoa.apply(this, args);
    }
    [S$0._setInterval_String](...args) {
      return this.setInterval.apply(this, args);
    }
    [S$0._setTimeout_String](...args) {
      return this.setTimeout.apply(this, args);
    }
    [S$0._clearInterval](...args) {
      return this.clearInterval.apply(this, args);
    }
    [S$0._clearTimeout](...args) {
      return this.clearTimeout.apply(this, args);
    }
    [S$0._setInterval](...args) {
      return this.setInterval.apply(this, args);
    }
    [S$0._setTimeout](...args) {
      return this.setTimeout.apply(this, args);
    }
    get [S.$onError]() {
      return html$.WorkerGlobalScope.errorEvent.forTarget(this);
    }
    static get instance() {
      return html$._workerSelf;
    }
  };
  dart.addRtiResources(html$.WorkerGlobalScope, ["html|WorkerGlobalScope", "html|WindowBase64", "html|_WindowTimers", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.WorkerGlobalScope, () => dart.global.Object.setPrototypeOf({
    [S$.$fetch]: T$4.dynamicAndMapNToFuture(),
    [S$0.$importScripts]: T$.StringTovoid(),
    [S$0.$atob]: T$.StringToString(),
    [S$0.$btoa]: T$.StringToString(),
    [S$0._setInterval_String]: T$4.StringAndintNAndObjectNToint(),
    [S$0._setTimeout_String]: T$4.StringAndintNAndObjectNToint(),
    [S$0._clearInterval]: T$4.intNTovoid$1(),
    [S$0._clearTimeout]: T$4.intNTovoid$1(),
    [S$0._setInterval]: T$4.ObjectAndintNToint(),
    [S$0._setTimeout]: T$4.ObjectAndintNToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.WorkerGlobalScope))));
  dart.setStaticMethodSignature(html$.WorkerGlobalScope, () => ['__']);
  dart.setGetterSignature(html$.WorkerGlobalScope, () => dart.global.Object.setPrototypeOf({
    [S$0.$addressSpace]: T$.StringN(),
    [S$0.$caches]: T$4.CacheStorageN(),
    [S$0.$crypto]: T$4.CryptoN(),
    [S$0.$indexedDB]: T$4.IdbFactoryN(),
    [S$0.$isSecureContext]: T$.boolN(),
    [S$0.$location]: T$4._WorkerLocation(),
    [S$0.$navigator]: T$4._WorkerNavigator(),
    [S$.$origin]: T$.StringN(),
    [S$0.$performance]: T$4.WorkerPerformanceN(),
    [S$0.$self]: T$4.WorkerGlobalScope(),
    [S.$onError]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.WorkerGlobalScope))));
  dart.setStaticGetterSignature(html$.WorkerGlobalScope, () => ['instance']);
  dart.setLibraryUri(html$.WorkerGlobalScope, I[167]);
  dart.setStaticFieldSignature(html$.WorkerGlobalScope, () => ['errorEvent']);
  dart.defineLazy(html$.WorkerGlobalScope, {
    /*html$.WorkerGlobalScope.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    }
  }, false);
  dart.registerExtension("WorkerGlobalScope", html$.WorkerGlobalScope);
  html$.DedicatedWorkerGlobalScope = class DedicatedWorkerGlobalScope extends html$.WorkerGlobalScope {
    static ['_#_#tearOff']() {
      return html$.DedicatedWorkerGlobalScope.__();
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$.$postMessage](message, transfer = null) {
      if (transfer != null) {
        let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
        this[S$0._postMessage_1](message_1, transfer);
        return;
      }
      let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
      this[S$0._postMessage_2](message_1);
      return;
    }
    [S$0._postMessage_1](...args) {
      return this.postMessage.apply(this, args);
    }
    [S$0._postMessage_2](...args) {
      return this.postMessage.apply(this, args);
    }
    [S$0._webkitRequestFileSystem](...args) {
      return this.webkitRequestFileSystem.apply(this, args);
    }
    [S$0.$requestFileSystemSync](...args) {
      return this.webkitRequestFileSystemSync.apply(this, args);
    }
    [S$0.$resolveLocalFileSystemSyncUrl](...args) {
      return this.webkitResolveLocalFileSystemSyncURL.apply(this, args);
    }
    [S$0._webkitResolveLocalFileSystemUrl](...args) {
      return this.webkitResolveLocalFileSystemURL.apply(this, args);
    }
    get [S$.$onMessage]() {
      return html$.DedicatedWorkerGlobalScope.messageEvent.forTarget(this);
    }
    static get instance() {
      return T$4.DedicatedWorkerGlobalScope()[_as](html$._workerSelf);
    }
  };
  dart.addRtiResources(html$.DedicatedWorkerGlobalScope, ["html|DedicatedWorkerGlobalScope"]);
  dart.setMethodSignature(html$.DedicatedWorkerGlobalScope, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$.VoidTovoid(),
    [S$.$postMessage]: T$4.dynamicAndListNOfObjectTovoid(),
    [S$0._postMessage_1]: T$4.dynamicAndListOfObjectTovoid(),
    [S$0._postMessage_2]: T$.dynamicTovoid(),
    [S$0._webkitRequestFileSystem]: T$4.intAndintAndFn__Tovoid(),
    [S$0.$requestFileSystemSync]: T$4.intAndintTo_DOMFileSystemSync(),
    [S$0.$resolveLocalFileSystemSyncUrl]: T$4.StringTo_EntrySync(),
    [S$0._webkitResolveLocalFileSystemUrl]: T$4.StringAndFnAndFnTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DedicatedWorkerGlobalScope))));
  dart.setStaticMethodSignature(html$.DedicatedWorkerGlobalScope, () => ['__']);
  dart.setGetterSignature(html$.DedicatedWorkerGlobalScope, () => dart.global.Object.setPrototypeOf({[S$.$onMessage]: T$4.StreamOfMessageEvent()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DedicatedWorkerGlobalScope))));
  dart.setStaticGetterSignature(html$.DedicatedWorkerGlobalScope, () => ['instance']);
  dart.setLibraryUri(html$.DedicatedWorkerGlobalScope, I[167]);
  dart.setStaticFieldSignature(html$.DedicatedWorkerGlobalScope, () => ['messageEvent', 'PERSISTENT', 'TEMPORARY']);
  dart.defineLazy(html$.DedicatedWorkerGlobalScope, {
    /*html$.DedicatedWorkerGlobalScope.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    },
    /*html$.DedicatedWorkerGlobalScope.PERSISTENT*/get PERSISTENT() {
      return 1;
    },
    /*html$.DedicatedWorkerGlobalScope.TEMPORARY*/get TEMPORARY() {
      return 0;
    }
  }, false);
  dart.registerExtension("DedicatedWorkerGlobalScope", html$.DedicatedWorkerGlobalScope);
  html$.DeprecatedStorageInfo = class DeprecatedStorageInfo extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DeprecatedStorageInfo.__();
    }
    [S$0.$queryUsageAndQuota](...args) {
      return this.queryUsageAndQuota.apply(this, args);
    }
    [S$0.$requestQuota](...args) {
      return this.requestQuota.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DeprecatedStorageInfo, ["html|DeprecatedStorageInfo"]);
  dart.setMethodSignature(html$.DeprecatedStorageInfo, () => dart.global.Object.setPrototypeOf({
    [S$0.$queryUsageAndQuota]: T$4.intAndFnAndFnTovoid(),
    [S$0.$requestQuota]: T$4.intAndintAndFn__Tovoid$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DeprecatedStorageInfo))));
  dart.setStaticMethodSignature(html$.DeprecatedStorageInfo, () => ['__']);
  dart.setLibraryUri(html$.DeprecatedStorageInfo, I[167]);
  dart.setStaticFieldSignature(html$.DeprecatedStorageInfo, () => ['PERSISTENT', 'TEMPORARY']);
  dart.defineLazy(html$.DeprecatedStorageInfo, {
    /*html$.DeprecatedStorageInfo.PERSISTENT*/get PERSISTENT() {
      return 1;
    },
    /*html$.DeprecatedStorageInfo.TEMPORARY*/get TEMPORARY() {
      return 0;
    }
  }, false);
  dart.registerExtension("DeprecatedStorageInfo", html$.DeprecatedStorageInfo);
  html$.DeprecatedStorageQuota = class DeprecatedStorageQuota extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DeprecatedStorageQuota.__();
    }
    [S$0.$queryUsageAndQuota](...args) {
      return this.queryUsageAndQuota.apply(this, args);
    }
    [S$0.$requestQuota](...args) {
      return this.requestQuota.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DeprecatedStorageQuota, ["html|DeprecatedStorageQuota"]);
  dart.setMethodSignature(html$.DeprecatedStorageQuota, () => dart.global.Object.setPrototypeOf({
    [S$0.$queryUsageAndQuota]: T$4.FnAndFnTovoid(),
    [S$0.$requestQuota]: T$4.intAndFnAndFnTovoid$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DeprecatedStorageQuota))));
  dart.setStaticMethodSignature(html$.DeprecatedStorageQuota, () => ['__']);
  dart.setLibraryUri(html$.DeprecatedStorageQuota, I[167]);
  dart.registerExtension("DeprecatedStorageQuota", html$.DeprecatedStorageQuota);
  html$.ReportBody = class ReportBody extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ReportBody.__();
    }
  };
  dart.addRtiResources(html$.ReportBody, ["html|ReportBody"]);
  dart.setStaticMethodSignature(html$.ReportBody, () => ['__']);
  dart.setLibraryUri(html$.ReportBody, I[167]);
  dart.registerExtension("ReportBody", html$.ReportBody);
  html$.DeprecationReport = class DeprecationReport extends html$.ReportBody {
    static ['_#_#tearOff']() {
      return html$.DeprecationReport.__();
    }
    get [S$0.$lineNumber]() {
      return this.lineNumber;
    }
    get [$message]() {
      return this.message;
    }
    get [S$0.$sourceFile]() {
      return this.sourceFile;
    }
  };
  dart.addRtiResources(html$.DeprecationReport, ["html|DeprecationReport"]);
  dart.setStaticMethodSignature(html$.DeprecationReport, () => ['__']);
  dart.setGetterSignature(html$.DeprecationReport, () => dart.global.Object.setPrototypeOf({
    [S$0.$lineNumber]: T$.intN(),
    [$message]: T$.StringN(),
    [S$0.$sourceFile]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DeprecationReport))));
  dart.setLibraryUri(html$.DeprecationReport, I[167]);
  dart.registerExtension("DeprecationReport", html$.DeprecationReport);
  html$.DetailsElement = class DetailsElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.DetailsElement.__();
    }
    static new() {
      return T$4.DetailsElement()[_as](html$.document[S.$createElement]("details"));
    }
    static ['_#new#tearOff']() {
      return html$.DetailsElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.DetailsElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("details");
    }
    get [S.$open]() {
      return this.open;
    }
    set [S.$open](value) {
      this.open = value;
    }
  };
  (html$.DetailsElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.DetailsElement).created.call(this);
    ;
  }).prototype = html$.DetailsElement.prototype;
  dart.addRtiResources(html$.DetailsElement, ["html|DetailsElement"]);
  dart.setStaticMethodSignature(html$.DetailsElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.DetailsElement, () => dart.global.Object.setPrototypeOf({[S.$open]: T$.boolN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DetailsElement))));
  dart.setSetterSignature(html$.DetailsElement, () => dart.global.Object.setPrototypeOf({[S.$open]: T$.boolN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DetailsElement))));
  dart.setStaticGetterSignature(html$.DetailsElement, () => ['supported']);
  dart.setLibraryUri(html$.DetailsElement, I[167]);
  dart.registerExtension("HTMLDetailsElement", html$.DetailsElement);
  html$.DetectedBarcode = class DetectedBarcode$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DetectedBarcode.__();
    }
    static new() {
      return html$.DetectedBarcode._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.DetectedBarcode.new();
    }
    static _create_1() {
      return new DetectedBarcode();
    }
    get [$boundingBox]() {
      return this.boundingBox;
    }
    get [S$0.$cornerPoints]() {
      return this.cornerPoints;
    }
    get [S$0.$rawValue]() {
      return this.rawValue;
    }
  };
  dart.addRtiResources(html$.DetectedBarcode, ["html|DetectedBarcode"]);
  dart.setStaticMethodSignature(html$.DetectedBarcode, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.DetectedBarcode, () => dart.global.Object.setPrototypeOf({
    [$boundingBox]: T$4.RectangleNOfnum(),
    [S$0.$cornerPoints]: T$.ListN(),
    [S$0.$rawValue]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DetectedBarcode))));
  dart.setLibraryUri(html$.DetectedBarcode, I[167]);
  dart.registerExtension("DetectedBarcode", html$.DetectedBarcode);
  html$.DetectedFace = class DetectedFace$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DetectedFace.__();
    }
    static new() {
      return html$.DetectedFace._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.DetectedFace.new();
    }
    static _create_1() {
      return new DetectedFace();
    }
    get [$boundingBox]() {
      return this.boundingBox;
    }
    get [S$0.$landmarks]() {
      return this.landmarks;
    }
  };
  dart.addRtiResources(html$.DetectedFace, ["html|DetectedFace"]);
  dart.setStaticMethodSignature(html$.DetectedFace, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.DetectedFace, () => dart.global.Object.setPrototypeOf({
    [$boundingBox]: T$4.RectangleNOfnum(),
    [S$0.$landmarks]: T$.ListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DetectedFace))));
  dart.setLibraryUri(html$.DetectedFace, I[167]);
  dart.registerExtension("DetectedFace", html$.DetectedFace);
  html$.DetectedText = class DetectedText$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DetectedText.__();
    }
    static new() {
      return html$.DetectedText._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.DetectedText.new();
    }
    static _create_1() {
      return new DetectedText();
    }
    get [$boundingBox]() {
      return this.boundingBox;
    }
    get [S$0.$cornerPoints]() {
      return this.cornerPoints;
    }
    get [S$0.$rawValue]() {
      return this.rawValue;
    }
  };
  dart.addRtiResources(html$.DetectedText, ["html|DetectedText"]);
  dart.setStaticMethodSignature(html$.DetectedText, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.DetectedText, () => dart.global.Object.setPrototypeOf({
    [$boundingBox]: T$4.RectangleNOfnum(),
    [S$0.$cornerPoints]: T$.ListN(),
    [S$0.$rawValue]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DetectedText))));
  dart.setLibraryUri(html$.DetectedText, I[167]);
  dart.registerExtension("DetectedText", html$.DetectedText);
  html$.DeviceAcceleration = class DeviceAcceleration extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DeviceAcceleration.__();
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$z]() {
      return this.z;
    }
  };
  dart.addRtiResources(html$.DeviceAcceleration, ["html|DeviceAcceleration"]);
  dart.setStaticMethodSignature(html$.DeviceAcceleration, () => ['__']);
  dart.setGetterSignature(html$.DeviceAcceleration, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DeviceAcceleration))));
  dart.setLibraryUri(html$.DeviceAcceleration, I[167]);
  dart.registerExtension("DeviceAcceleration", html$.DeviceAcceleration);
  html$.DeviceMotionEvent = class DeviceMotionEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.DeviceMotionEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 9502, 36, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.DeviceMotionEvent._create_1(type, eventInitDict_1);
      }
      return html$.DeviceMotionEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 9502, 36, "type");
      return html$.DeviceMotionEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new DeviceMotionEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new DeviceMotionEvent(type);
    }
    get [S$0.$acceleration]() {
      return this.acceleration;
    }
    get [S$0.$accelerationIncludingGravity]() {
      return this.accelerationIncludingGravity;
    }
    get [S$0.$interval]() {
      return this.interval;
    }
    get [S$0.$rotationRate]() {
      return this.rotationRate;
    }
  };
  dart.addRtiResources(html$.DeviceMotionEvent, ["html|DeviceMotionEvent"]);
  dart.setStaticMethodSignature(html$.DeviceMotionEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.DeviceMotionEvent, () => dart.global.Object.setPrototypeOf({
    [S$0.$acceleration]: T$4.DeviceAccelerationN(),
    [S$0.$accelerationIncludingGravity]: T$4.DeviceAccelerationN(),
    [S$0.$interval]: T$3.numN(),
    [S$0.$rotationRate]: T$5.DeviceRotationRateN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DeviceMotionEvent))));
  dart.setLibraryUri(html$.DeviceMotionEvent, I[167]);
  dart.registerExtension("DeviceMotionEvent", html$.DeviceMotionEvent);
  html$.DeviceOrientationEvent = class DeviceOrientationEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.DeviceOrientationEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 9533, 41, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.DeviceOrientationEvent._create_1(type, eventInitDict_1);
      }
      return html$.DeviceOrientationEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 9533, 41, "type");
      return html$.DeviceOrientationEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new DeviceOrientationEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new DeviceOrientationEvent(type);
    }
    get [S$0.$absolute]() {
      return this.absolute;
    }
    get [S$0.$alpha]() {
      return this.alpha;
    }
    get [S$0.$beta]() {
      return this.beta;
    }
    get [S$0.$gamma]() {
      return this.gamma;
    }
  };
  dart.addRtiResources(html$.DeviceOrientationEvent, ["html|DeviceOrientationEvent"]);
  dart.setStaticMethodSignature(html$.DeviceOrientationEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.DeviceOrientationEvent, () => dart.global.Object.setPrototypeOf({
    [S$0.$absolute]: T$.boolN(),
    [S$0.$alpha]: T$3.numN(),
    [S$0.$beta]: T$3.numN(),
    [S$0.$gamma]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DeviceOrientationEvent))));
  dart.setLibraryUri(html$.DeviceOrientationEvent, I[167]);
  dart.registerExtension("DeviceOrientationEvent", html$.DeviceOrientationEvent);
  html$.DeviceRotationRate = class DeviceRotationRate extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DeviceRotationRate.__();
    }
    get [S$0.$alpha]() {
      return this.alpha;
    }
    get [S$0.$beta]() {
      return this.beta;
    }
    get [S$0.$gamma]() {
      return this.gamma;
    }
  };
  dart.addRtiResources(html$.DeviceRotationRate, ["html|DeviceRotationRate"]);
  dart.setStaticMethodSignature(html$.DeviceRotationRate, () => ['__']);
  dart.setGetterSignature(html$.DeviceRotationRate, () => dart.global.Object.setPrototypeOf({
    [S$0.$alpha]: T$3.numN(),
    [S$0.$beta]: T$3.numN(),
    [S$0.$gamma]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DeviceRotationRate))));
  dart.setLibraryUri(html$.DeviceRotationRate, I[167]);
  dart.registerExtension("DeviceRotationRate", html$.DeviceRotationRate);
  html$.DialogElement = class DialogElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.DialogElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.DialogElement.created();
    }
    get [S.$open]() {
      return this.open;
    }
    set [S.$open](value) {
      this.open = value;
    }
    get [S$.$returnValue]() {
      return this.returnValue;
    }
    set [S$.$returnValue](value) {
      this.returnValue = value;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$0.$show](...args) {
      return this.show.apply(this, args);
    }
    [S$0.$showModal](...args) {
      return this.showModal.apply(this, args);
    }
  };
  (html$.DialogElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.DialogElement).created.call(this);
    ;
  }).prototype = html$.DialogElement.prototype;
  dart.addRtiResources(html$.DialogElement, ["html|DialogElement"]);
  dart.setMethodSignature(html$.DialogElement, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$4.StringNTovoid$1(),
    [S$0.$show]: T$.VoidTovoid(),
    [S$0.$showModal]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DialogElement))));
  dart.setStaticMethodSignature(html$.DialogElement, () => ['__']);
  dart.setGetterSignature(html$.DialogElement, () => dart.global.Object.setPrototypeOf({
    [S.$open]: T$.boolN(),
    [S$.$returnValue]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DialogElement))));
  dart.setSetterSignature(html$.DialogElement, () => dart.global.Object.setPrototypeOf({
    [S.$open]: T$.boolN(),
    [S$.$returnValue]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DialogElement))));
  dart.setLibraryUri(html$.DialogElement, I[167]);
  dart.registerExtension("HTMLDialogElement", html$.DialogElement);
  html$.Entry = class Entry extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Entry.__();
    }
    get [S$0.$filesystem]() {
      return this.filesystem;
    }
    get [S$0.$fullPath]() {
      return this.fullPath;
    }
    get [S$0.$isDirectory]() {
      return this.isDirectory;
    }
    get [S$0.$isFile]() {
      return this.isFile;
    }
    get [$name]() {
      return this.name;
    }
    [S$0._copyTo](...args) {
      return this.copyTo.apply(this, args);
    }
    [S$0.$copyTo](parent, opts) {
      if (parent == null) dart.nullFailed(I[166], 15388, 39, "parent");
      let name = opts && 'name' in opts ? opts.name : null;
      let completer = G$.CompleterOfEntry().new();
      this[S$0._copyTo](parent, name, dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 15390, 28, "value");
        completer.complete(value);
      }, T$5.EntryTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 15392, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$0._getMetadata](...args) {
      return this.getMetadata.apply(this, args);
    }
    [S$1.$getMetadata]() {
      let completer = G$.CompleterOfMetadata().new();
      this[S$0._getMetadata](dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 15405, 19, "value");
        _js_helper.applyExtension("Metadata", value);
        completer.complete(value);
      }, T$5.MetadataTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 15408, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$1._getParent](...args) {
      return this.getParent.apply(this, args);
    }
    [S$1.$getParent]() {
      let completer = G$.CompleterOfEntry().new();
      this[S$1._getParent](dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 15421, 17, "value");
        _js_helper.applyExtension("Entry", value);
        _js_helper.applyExtension("webkitFileSystemEntry", value);
        _js_helper.applyExtension("FileSystemEntry", value);
        completer.complete(value);
      }, T$5.EntryTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 15426, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$1._moveTo](...args) {
      return this.moveTo.apply(this, args);
    }
    [S$.$moveTo](parent, opts) {
      if (parent == null) dart.nullFailed(I[166], 15439, 39, "parent");
      let name = opts && 'name' in opts ? opts.name : null;
      let completer = G$.CompleterOfEntry().new();
      this[S$1._moveTo](parent, name, dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 15441, 28, "value");
        completer.complete(value);
      }, T$5.EntryTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 15443, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$1._remove$1](...args) {
      return this.remove.apply(this, args);
    }
    [$remove]() {
      let completer = async.Completer.new();
      this[S$1._remove$1](dart.fn(() => {
        completer.complete();
      }, T$.VoidTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 15458, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$1.$toUrl](...args) {
      return this.toURL.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Entry, ["html|Entry"]);
  dart.setMethodSignature(html$.Entry, () => dart.global.Object.setPrototypeOf({
    [S$0._copyTo]: T$5.DirectoryEntryAndStringNAndFn__Tovoid(),
    [S$0.$copyTo]: T$5.DirectoryEntry__ToFutureOfEntry(),
    [S$0._getMetadata]: T$5.FnAndFnTovoid$1(),
    [S$1.$getMetadata]: T$5.VoidToFutureOfMetadata(),
    [S$1._getParent]: T$5.FnAndFnTovoid$2(),
    [S$1.$getParent]: T$5.VoidToFutureOfEntry(),
    [S$1._moveTo]: T$5.DirectoryEntryAndStringNAndFn__Tovoid(),
    [S$.$moveTo]: T$5.DirectoryEntry__ToFutureOfEntry(),
    [S$1._remove$1]: T$5.FnAndFnTovoid$3(),
    [$remove]: T$.VoidToFuture(),
    [S$1.$toUrl]: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Entry))));
  dart.setStaticMethodSignature(html$.Entry, () => ['__']);
  dart.setGetterSignature(html$.Entry, () => dart.global.Object.setPrototypeOf({
    [S$0.$filesystem]: T$5.FileSystemN(),
    [S$0.$fullPath]: T$.StringN(),
    [S$0.$isDirectory]: T$.boolN(),
    [S$0.$isFile]: T$.boolN(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Entry))));
  dart.setLibraryUri(html$.Entry, I[167]);
  dart.registerExtension("Entry", html$.Entry);
  dart.registerExtension("webkitFileSystemEntry", html$.Entry);
  dart.registerExtension("FileSystemEntry", html$.Entry);
  html$.DirectoryEntry = class DirectoryEntry extends html$.Entry {
    [S$0.$createDirectory](path, opts) {
      if (path == null) dart.nullFailed(I[166], 9617, 40, "path");
      let exclusive = opts && 'exclusive' in opts ? opts.exclusive : false;
      if (exclusive == null) dart.nullFailed(I[166], 9617, 52, "exclusive");
      return this[S$0._getDirectory](path, {options: new _js_helper.LinkedMap.from(["create", true, "exclusive", exclusive])});
    }
    [S$0.$createReader]() {
      let reader = this[S$0._createReader]();
      _js_helper.applyExtension("DirectoryReader", reader);
      _js_helper.applyExtension("WebKitDirectoryReader", reader);
      _js_helper.applyExtension("webkitFileSystemDirectoryReader", reader);
      _js_helper.applyExtension("FileSystemDirectoryReader", reader);
      return reader;
    }
    [S$0.$getDirectory](path) {
      if (path == null) dart.nullFailed(I[166], 9636, 37, "path");
      return this[S$0._getDirectory](path);
    }
    [S$0.$createFile](path, opts) {
      if (path == null) dart.nullFailed(I[166], 9645, 35, "path");
      let exclusive = opts && 'exclusive' in opts ? opts.exclusive : false;
      if (exclusive == null) dart.nullFailed(I[166], 9645, 47, "exclusive");
      return this[S$0._getFile](path, {options: new _js_helper.LinkedMap.from(["create", true, "exclusive", exclusive])});
    }
    [S$0.$getFile](path) {
      if (path == null) dart.nullFailed(I[166], 9654, 32, "path");
      return this[S$0._getFile](path);
    }
    static ['_#_#tearOff']() {
      return html$.DirectoryEntry.__();
    }
    [S$0._createReader](...args) {
      return this.createReader.apply(this, args);
    }
    [S$0.__getDirectory](path, options = null, successCallback = null, errorCallback = null) {
      if (errorCallback != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        this[S$0.__getDirectory_1](path, options_1, successCallback, errorCallback);
        return;
      }
      if (successCallback != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        this[S$0.__getDirectory_2](path, options_1, successCallback);
        return;
      }
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        this[S$0.__getDirectory_3](path, options_1);
        return;
      }
      this[S$0.__getDirectory_4](path);
      return;
    }
    [S$0.__getDirectory_1](...args) {
      return this.getDirectory.apply(this, args);
    }
    [S$0.__getDirectory_2](...args) {
      return this.getDirectory.apply(this, args);
    }
    [S$0.__getDirectory_3](...args) {
      return this.getDirectory.apply(this, args);
    }
    [S$0.__getDirectory_4](...args) {
      return this.getDirectory.apply(this, args);
    }
    [S$0._getDirectory](path, opts) {
      let options = opts && 'options' in opts ? opts.options : null;
      let completer = G$.CompleterOfEntry().new();
      this[S$0.__getDirectory](path, options, dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 9702, 36, "value");
        completer.complete(value);
      }, T$5.EntryTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 9704, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$0.__getFile](path, options = null, successCallback = null, errorCallback = null) {
      if (errorCallback != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        this[S$0.__getFile_1](path, options_1, successCallback, errorCallback);
        return;
      }
      if (successCallback != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        this[S$0.__getFile_2](path, options_1, successCallback);
        return;
      }
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        this[S$0.__getFile_3](path, options_1);
        return;
      }
      this[S$0.__getFile_4](path);
      return;
    }
    [S$0.__getFile_1](...args) {
      return this.getFile.apply(this, args);
    }
    [S$0.__getFile_2](...args) {
      return this.getFile.apply(this, args);
    }
    [S$0.__getFile_3](...args) {
      return this.getFile.apply(this, args);
    }
    [S$0.__getFile_4](...args) {
      return this.getFile.apply(this, args);
    }
    [S$0._getFile](path, opts) {
      let options = opts && 'options' in opts ? opts.options : null;
      let completer = G$.CompleterOfEntry().new();
      this[S$0.__getFile](path, options, dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 9746, 31, "value");
        _js_helper.applyExtension("FileEntry", value);
        _js_helper.applyExtension("webkitFileSystemFileEntry", value);
        _js_helper.applyExtension("FileSystemFileEntry", value);
        completer.complete(value);
      }, T$5.EntryTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 9751, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$0._removeRecursively](...args) {
      return this.removeRecursively.apply(this, args);
    }
    [S$0.$removeRecursively]() {
      let completer = async.Completer.new();
      this[S$0._removeRecursively](dart.fn(() => {
        completer.complete();
      }, T$.VoidTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 9766, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
  };
  dart.addRtiResources(html$.DirectoryEntry, ["html|DirectoryEntry"]);
  dart.setMethodSignature(html$.DirectoryEntry, () => dart.global.Object.setPrototypeOf({
    [S$0.$createDirectory]: T$5.String__ToFutureOfEntry(),
    [S$0.$createReader]: T$5.VoidToDirectoryReader(),
    [S$0.$getDirectory]: T$5.StringToFutureOfEntry(),
    [S$0.$createFile]: T$5.String__ToFutureOfEntry(),
    [S$0.$getFile]: T$5.StringToFutureOfEntry(),
    [S$0._createReader]: T$5.VoidToDirectoryReader(),
    [S$0.__getDirectory]: T$5.StringNAndMapNAndFn__Tovoid(),
    [S$0.__getDirectory_1]: T$5.dynamicAnddynamicAndFn__Tovoid(),
    [S$0.__getDirectory_2]: T$5.dynamicAnddynamicAndFnTovoid(),
    [S$0.__getDirectory_3]: T$.dynamicAnddynamicTovoid(),
    [S$0.__getDirectory_4]: T$.dynamicTovoid(),
    [S$0._getDirectory]: T$5.StringN__ToFutureOfEntry(),
    [S$0.__getFile]: T$5.StringNAndMapNAndFn__Tovoid(),
    [S$0.__getFile_1]: T$5.dynamicAnddynamicAndFn__Tovoid(),
    [S$0.__getFile_2]: T$5.dynamicAnddynamicAndFnTovoid(),
    [S$0.__getFile_3]: T$.dynamicAnddynamicTovoid(),
    [S$0.__getFile_4]: T$.dynamicTovoid(),
    [S$0._getFile]: T$5.StringN__ToFutureOfEntry(),
    [S$0._removeRecursively]: T$5.FnAndFnTovoid$3(),
    [S$0.$removeRecursively]: T$.VoidToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DirectoryEntry))));
  dart.setStaticMethodSignature(html$.DirectoryEntry, () => ['__']);
  dart.setLibraryUri(html$.DirectoryEntry, I[167]);
  dart.registerExtension("DirectoryEntry", html$.DirectoryEntry);
  dart.registerExtension("webkitFileSystemDirectoryEntry", html$.DirectoryEntry);
  dart.registerExtension("FileSystemDirectoryEntry", html$.DirectoryEntry);
  html$.DirectoryReader = class DirectoryReader extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DirectoryReader.__();
    }
    [S$1._readEntries](...args) {
      return this.readEntries.apply(this, args);
    }
    [S$1.$readEntries]() {
      let completer = G$.CompleterOfListOfEntry().new();
      this[S$1._readEntries](dart.fn(values => {
        if (values == null) dart.nullFailed(I[166], 9790, 19, "values");
        values[$forEach](dart.fn(value => {
          _js_helper.applyExtension("Entry", value);
          _js_helper.applyExtension("webkitFileSystemEntry", value);
          _js_helper.applyExtension("FileSystemEntry", value);
          let entry = T$4.Entry()[_as](value);
          if (dart.nullCheck(entry.isFile)) {
            _js_helper.applyExtension("FileEntry", entry);
            _js_helper.applyExtension("webkitFileSystemFileEntry", entry);
            _js_helper.applyExtension("FileSystemFileEntry", entry);
          } else if (dart.nullCheck(entry.isDirectory)) {
            _js_helper.applyExtension("DirectoryEntry", entry);
            _js_helper.applyExtension("webkitFileSystemDirectoryEntry", entry);
            _js_helper.applyExtension("FileSystemDirectoryEntry", entry);
          }
        }, T$.dynamicTovoid()));
        completer.complete(G$.ListOfEntry().from(values));
      }, T$5.ListTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 9807, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
  };
  dart.addRtiResources(html$.DirectoryReader, ["html|DirectoryReader"]);
  dart.setMethodSignature(html$.DirectoryReader, () => dart.global.Object.setPrototypeOf({
    [S$1._readEntries]: T$5.FnAndFnTovoid$4(),
    [S$1.$readEntries]: T$5.VoidToFutureOfListOfEntry()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DirectoryReader))));
  dart.setStaticMethodSignature(html$.DirectoryReader, () => ['__']);
  dart.setLibraryUri(html$.DirectoryReader, I[167]);
  dart.registerExtension("DirectoryReader", html$.DirectoryReader);
  dart.registerExtension("WebKitDirectoryReader", html$.DirectoryReader);
  dart.registerExtension("webkitFileSystemDirectoryReader", html$.DirectoryReader);
  dart.registerExtension("FileSystemDirectoryReader", html$.DirectoryReader);
  html$.DivElement = class DivElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.DivElement.__();
    }
    static new() {
      return html$.document.createElement("div");
    }
    static ['_#new#tearOff']() {
      return html$.DivElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.DivElement.created();
    }
  };
  (html$.DivElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.DivElement).created.call(this);
    ;
  }).prototype = html$.DivElement.prototype;
  dart.addRtiResources(html$.DivElement, ["html|DivElement"]);
  dart.setStaticMethodSignature(html$.DivElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.DivElement, I[167]);
  dart.registerExtension("HTMLDivElement", html$.DivElement);
  html$.Document = class Document$ extends html$.Node {
    static ['_#_#tearOff']() {
      return html$.Document.__();
    }
    static new() {
      return html$.Document._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.Document.new();
    }
    static _create_1() {
      return new Document();
    }
    get [S$0.$addressSpace]() {
      return this.addressSpace;
    }
    get [S$1._body]() {
      return this.body;
    }
    set [S$1._body](value) {
      this.body = value;
    }
    get [S$1.$contentType]() {
      return this.contentType;
    }
    get [S$1.$cookie]() {
      return this.cookie;
    }
    set [S$1.$cookie](value) {
      this.cookie = value;
    }
    get [S$1.$currentScript]() {
      return this.currentScript;
    }
    get [S$1.$window]() {
      return html$._convertNativeToDart_Window(this[S$1._get_window]);
    }
    get [S$1._get_window]() {
      return this.defaultView;
    }
    get [S$1.$documentElement]() {
      return this.documentElement;
    }
    get [S$1.$domain]() {
      return this.domain;
    }
    get [S$1.$fullscreenEnabled]() {
      return this.fullscreenEnabled;
    }
    get [S$1._head$1]() {
      return this.head;
    }
    get [S.$hidden]() {
      return this.hidden;
    }
    get [S$1.$implementation]() {
      return this.implementation;
    }
    get [S$1._lastModified]() {
      return this.lastModified;
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$1._preferredStylesheetSet]() {
      return this.preferredStylesheetSet;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    get [S$1._referrer]() {
      return this.referrer;
    }
    get [S$1.$rootElement]() {
      return this.rootElement;
    }
    get [S$1.$rootScroller]() {
      return this.rootScroller;
    }
    set [S$1.$rootScroller](value) {
      this.rootScroller = value;
    }
    get [S$1.$scrollingElement]() {
      return this.scrollingElement;
    }
    get [S$1._selectedStylesheetSet]() {
      return this.selectedStylesheetSet;
    }
    set [S$1._selectedStylesheetSet](value) {
      this.selectedStylesheetSet = value;
    }
    get [S$1.$suborigin]() {
      return this.suborigin;
    }
    get [S$.$timeline]() {
      return this.timeline;
    }
    get [S$1._title]() {
      return this.title;
    }
    set [S$1._title](value) {
      this.title = value;
    }
    get [S$1._visibilityState]() {
      return this.visibilityState;
    }
    get [S$1._webkitFullscreenElement]() {
      return this.webkitFullscreenElement;
    }
    get [S$1._webkitFullscreenEnabled]() {
      return this.webkitFullscreenEnabled;
    }
    get [S$1._webkitHidden]() {
      return this.webkitHidden;
    }
    get [S$1._webkitVisibilityState]() {
      return this.webkitVisibilityState;
    }
    [S$1.$adoptNode](...args) {
      return this.adoptNode.apply(this, args);
    }
    [S$1._caretRangeFromPoint](...args) {
      return this.caretRangeFromPoint.apply(this, args);
    }
    [S$1.$createDocumentFragment](...args) {
      return this.createDocumentFragment.apply(this, args);
    }
    [S$1._createElement](...args) {
      return this.createElement.apply(this, args);
    }
    [S$1._createElementNS](...args) {
      return this.createElementNS.apply(this, args);
    }
    [S._createEvent](...args) {
      return this.createEvent.apply(this, args);
    }
    [S$1.$createRange](...args) {
      return this.createRange.apply(this, args);
    }
    [S$1._createTextNode](...args) {
      return this.createTextNode.apply(this, args);
    }
    [S$1._createTouch](view, target, identifier, pageX, pageY, screenX, screenY, radiusX = null, radiusY = null, rotationAngle = null, force = null) {
      if (view == null) dart.nullFailed(I[166], 10039, 29, "view");
      if (target == null) dart.nullFailed(I[166], 10039, 47, "target");
      if (identifier == null) dart.nullFailed(I[166], 10039, 59, "identifier");
      if (pageX == null) dart.nullFailed(I[166], 10039, 75, "pageX");
      if (pageY == null) dart.nullFailed(I[166], 10040, 11, "pageY");
      if (screenX == null) dart.nullFailed(I[166], 10040, 22, "screenX");
      if (screenY == null) dart.nullFailed(I[166], 10040, 35, "screenY");
      if (force != null) {
        let target_1 = html$._convertDartToNative_EventTarget(target);
        return this[S$1._createTouch_1](view, target_1, identifier, pageX, pageY, screenX, screenY, radiusX, radiusY, rotationAngle, force);
      }
      if (rotationAngle != null) {
        let target_1 = html$._convertDartToNative_EventTarget(target);
        return this[S$1._createTouch_2](view, target_1, identifier, pageX, pageY, screenX, screenY, radiusX, radiusY, rotationAngle);
      }
      if (radiusY != null) {
        let target_1 = html$._convertDartToNative_EventTarget(target);
        return this[S$1._createTouch_3](view, target_1, identifier, pageX, pageY, screenX, screenY, radiusX, radiusY);
      }
      if (radiusX != null) {
        let target_1 = html$._convertDartToNative_EventTarget(target);
        return this[S$1._createTouch_4](view, target_1, identifier, pageX, pageY, screenX, screenY, radiusX);
      }
      let target_1 = html$._convertDartToNative_EventTarget(target);
      return this[S$1._createTouch_5](view, target_1, identifier, pageX, pageY, screenX, screenY);
    }
    [S$1._createTouch_1](...args) {
      return this.createTouch.apply(this, args);
    }
    [S$1._createTouch_2](...args) {
      return this.createTouch.apply(this, args);
    }
    [S$1._createTouch_3](...args) {
      return this.createTouch.apply(this, args);
    }
    [S$1._createTouch_4](...args) {
      return this.createTouch.apply(this, args);
    }
    [S$1._createTouch_5](...args) {
      return this.createTouch.apply(this, args);
    }
    [S$1._createTouchList](...args) {
      return this.createTouchList.apply(this, args);
    }
    [S$1.$execCommand](...args) {
      return this.execCommand.apply(this, args);
    }
    [S$1.$exitFullscreen](...args) {
      return this.exitFullscreen.apply(this, args);
    }
    [S$1.$exitPointerLock](...args) {
      return this.exitPointerLock.apply(this, args);
    }
    [S.$getAnimations](...args) {
      return this.getAnimations.apply(this, args);
    }
    [S.$getElementsByClassName](...args) {
      return this.getElementsByClassName.apply(this, args);
    }
    [S$1.$getElementsByName](...args) {
      return this.getElementsByName.apply(this, args);
    }
    [S$1.$getElementsByTagName](...args) {
      return this.getElementsByTagName.apply(this, args);
    }
    [S$1.$importNode](...args) {
      return this.importNode.apply(this, args);
    }
    [S$1.$queryCommandEnabled](...args) {
      return this.queryCommandEnabled.apply(this, args);
    }
    [S$1.$queryCommandIndeterm](...args) {
      return this.queryCommandIndeterm.apply(this, args);
    }
    [S$1.$queryCommandState](...args) {
      return this.queryCommandState.apply(this, args);
    }
    [S$1.$queryCommandSupported](...args) {
      return this.queryCommandSupported.apply(this, args);
    }
    [S$1.$queryCommandValue](...args) {
      return this.queryCommandValue.apply(this, args);
    }
    [S$1._webkitExitFullscreen](...args) {
      return this.webkitExitFullscreen.apply(this, args);
    }
    get [S$1.$activeElement]() {
      return this.activeElement;
    }
    get [S$1.$fullscreenElement]() {
      return this.fullscreenElement;
    }
    get [S$1.$pointerLockElement]() {
      return this.pointerLockElement;
    }
    get [S$1._styleSheets]() {
      return this.styleSheets;
    }
    [S$1._elementFromPoint](...args) {
      return this.elementFromPoint.apply(this, args);
    }
    [S$1.$elementsFromPoint](...args) {
      return this.elementsFromPoint.apply(this, args);
    }
    get [S$1.$fonts]() {
      return this.fonts;
    }
    [S$1.$getElementById](...args) {
      return this.getElementById.apply(this, args);
    }
    get [S._childElementCount]() {
      return this.childElementCount;
    }
    get [S._children]() {
      return this.children;
    }
    get [S._firstElementChild]() {
      return this.firstElementChild;
    }
    get [S._lastElementChild]() {
      return this.lastElementChild;
    }
    [S.$querySelector](...args) {
      return this.querySelector.apply(this, args);
    }
    [S._querySelectorAll](...args) {
      return this.querySelectorAll.apply(this, args);
    }
    get [S.$onAbort]() {
      return html$.Element.abortEvent.forTarget(this);
    }
    get [S.$onBeforeCopy]() {
      return html$.Element.beforeCopyEvent.forTarget(this);
    }
    get [S.$onBeforeCut]() {
      return html$.Element.beforeCutEvent.forTarget(this);
    }
    get [S.$onBeforePaste]() {
      return html$.Element.beforePasteEvent.forTarget(this);
    }
    get [S.$onBlur]() {
      return html$.Element.blurEvent.forTarget(this);
    }
    get [S.$onCanPlay]() {
      return html$.Element.canPlayEvent.forTarget(this);
    }
    get [S.$onCanPlayThrough]() {
      return html$.Element.canPlayThroughEvent.forTarget(this);
    }
    get [S.$onChange]() {
      return html$.Element.changeEvent.forTarget(this);
    }
    get [S.$onClick]() {
      return html$.Element.clickEvent.forTarget(this);
    }
    get [S.$onContextMenu]() {
      return html$.Element.contextMenuEvent.forTarget(this);
    }
    get [S.$onCopy]() {
      return html$.Element.copyEvent.forTarget(this);
    }
    get [S.$onCut]() {
      return html$.Element.cutEvent.forTarget(this);
    }
    get [S.$onDoubleClick]() {
      return html$.Element.doubleClickEvent.forTarget(this);
    }
    get [S.$onDrag]() {
      return html$.Element.dragEvent.forTarget(this);
    }
    get [S.$onDragEnd]() {
      return html$.Element.dragEndEvent.forTarget(this);
    }
    get [S.$onDragEnter]() {
      return html$.Element.dragEnterEvent.forTarget(this);
    }
    get [S.$onDragLeave]() {
      return html$.Element.dragLeaveEvent.forTarget(this);
    }
    get [S.$onDragOver]() {
      return html$.Element.dragOverEvent.forTarget(this);
    }
    get [S.$onDragStart]() {
      return html$.Element.dragStartEvent.forTarget(this);
    }
    get [S.$onDrop]() {
      return html$.Element.dropEvent.forTarget(this);
    }
    get [S.$onDurationChange]() {
      return html$.Element.durationChangeEvent.forTarget(this);
    }
    get [S.$onEmptied]() {
      return html$.Element.emptiedEvent.forTarget(this);
    }
    get [S.$onEnded]() {
      return html$.Element.endedEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.Element.errorEvent.forTarget(this);
    }
    get [S.$onFocus]() {
      return html$.Element.focusEvent.forTarget(this);
    }
    get [S.$onInput]() {
      return html$.Element.inputEvent.forTarget(this);
    }
    get [S.$onInvalid]() {
      return html$.Element.invalidEvent.forTarget(this);
    }
    get [S.$onKeyDown]() {
      return html$.Element.keyDownEvent.forTarget(this);
    }
    get [S.$onKeyPress]() {
      return html$.Element.keyPressEvent.forTarget(this);
    }
    get [S.$onKeyUp]() {
      return html$.Element.keyUpEvent.forTarget(this);
    }
    get [S.$onLoad]() {
      return html$.Element.loadEvent.forTarget(this);
    }
    get [S.$onLoadedData]() {
      return html$.Element.loadedDataEvent.forTarget(this);
    }
    get [S.$onLoadedMetadata]() {
      return html$.Element.loadedMetadataEvent.forTarget(this);
    }
    get [S.$onMouseDown]() {
      return html$.Element.mouseDownEvent.forTarget(this);
    }
    get [S.$onMouseEnter]() {
      return html$.Element.mouseEnterEvent.forTarget(this);
    }
    get [S.$onMouseLeave]() {
      return html$.Element.mouseLeaveEvent.forTarget(this);
    }
    get [S.$onMouseMove]() {
      return html$.Element.mouseMoveEvent.forTarget(this);
    }
    get [S$.$onMouseOut]() {
      return html$.Element.mouseOutEvent.forTarget(this);
    }
    get [S$.$onMouseOver]() {
      return html$.Element.mouseOverEvent.forTarget(this);
    }
    get [S$.$onMouseUp]() {
      return html$.Element.mouseUpEvent.forTarget(this);
    }
    get [S$.$onMouseWheel]() {
      return html$.Element.mouseWheelEvent.forTarget(this);
    }
    get [S$.$onPaste]() {
      return html$.Element.pasteEvent.forTarget(this);
    }
    get [S$.$onPause]() {
      return html$.Element.pauseEvent.forTarget(this);
    }
    get [S$.$onPlay]() {
      return html$.Element.playEvent.forTarget(this);
    }
    get [S$.$onPlaying]() {
      return html$.Element.playingEvent.forTarget(this);
    }
    get [S$1.$onPointerLockChange]() {
      return html$.Document.pointerLockChangeEvent.forTarget(this);
    }
    get [S$1.$onPointerLockError]() {
      return html$.Document.pointerLockErrorEvent.forTarget(this);
    }
    get [S$.$onRateChange]() {
      return html$.Element.rateChangeEvent.forTarget(this);
    }
    get [S$1.$onReadyStateChange]() {
      return html$.Document.readyStateChangeEvent.forTarget(this);
    }
    get [S$.$onReset]() {
      return html$.Element.resetEvent.forTarget(this);
    }
    get [S$.$onResize]() {
      return html$.Element.resizeEvent.forTarget(this);
    }
    get [S$.$onScroll]() {
      return html$.Element.scrollEvent.forTarget(this);
    }
    get [S$.$onSearch]() {
      return html$.Element.searchEvent.forTarget(this);
    }
    get [S$1.$onSecurityPolicyViolation]() {
      return html$.Document.securityPolicyViolationEvent.forTarget(this);
    }
    get [S$.$onSeeked]() {
      return html$.Element.seekedEvent.forTarget(this);
    }
    get [S$.$onSeeking]() {
      return html$.Element.seekingEvent.forTarget(this);
    }
    get [S$.$onSelect]() {
      return html$.Element.selectEvent.forTarget(this);
    }
    get [S$1.$onSelectionChange]() {
      return html$.Document.selectionChangeEvent.forTarget(this);
    }
    get [S$.$onSelectStart]() {
      return html$.Element.selectStartEvent.forTarget(this);
    }
    get [S$.$onStalled]() {
      return html$.Element.stalledEvent.forTarget(this);
    }
    get [S$.$onSubmit]() {
      return html$.Element.submitEvent.forTarget(this);
    }
    get [S$.$onSuspend]() {
      return html$.Element.suspendEvent.forTarget(this);
    }
    get [S$.$onTimeUpdate]() {
      return html$.Element.timeUpdateEvent.forTarget(this);
    }
    get [S$.$onTouchCancel]() {
      return html$.Element.touchCancelEvent.forTarget(this);
    }
    get [S$.$onTouchEnd]() {
      return html$.Element.touchEndEvent.forTarget(this);
    }
    get [S$.$onTouchMove]() {
      return html$.Element.touchMoveEvent.forTarget(this);
    }
    get [S$.$onTouchStart]() {
      return html$.Element.touchStartEvent.forTarget(this);
    }
    get [S$.$onVolumeChange]() {
      return html$.Element.volumeChangeEvent.forTarget(this);
    }
    get [S$.$onWaiting]() {
      return html$.Element.waitingEvent.forTarget(this);
    }
    get [S$.$onFullscreenChange]() {
      return html$.Element.fullscreenChangeEvent.forTarget(this);
    }
    get [S$.$onFullscreenError]() {
      return html$.Element.fullscreenErrorEvent.forTarget(this);
    }
    [S.$querySelectorAll](T, selectors) {
      if (selectors == null) dart.nullFailed(I[166], 10411, 61, "selectors");
      return new (html$._FrozenElementList$(T))._wrap(this[S._querySelectorAll](selectors));
    }
    [S.$createElement](tagName, typeExtension = null) {
      if (tagName == null) dart.nullFailed(I[166], 10415, 32, "tagName");
      return T$3.Element()[_as](typeExtension == null ? this[S$1._createElement_2](tagName) : this[S$1._createElement](tagName, typeExtension));
    }
    [S$1._createElement_2](tagName) {
      if (tagName == null) dart.nullFailed(I[166], 10423, 27, "tagName");
      return this.createElement(tagName);
    }
    [S$1._createElementNS_2](namespaceURI, qualifiedName) {
      if (namespaceURI == null) dart.nullFailed(I[166], 10428, 29, "namespaceURI");
      if (qualifiedName == null) dart.nullFailed(I[166], 10428, 50, "qualifiedName");
      return this.createElementNS(namespaceURI, qualifiedName);
    }
    [S$1.$createElementNS](namespaceURI, qualifiedName, typeExtension = null) {
      if (namespaceURI == null) dart.nullFailed(I[166], 10431, 34, "namespaceURI");
      if (qualifiedName == null) dart.nullFailed(I[166], 10431, 55, "qualifiedName");
      return T$3.Element()[_as](typeExtension == null ? this[S$1._createElementNS_2](namespaceURI, qualifiedName) : this[S$1._createElementNS](namespaceURI, qualifiedName, typeExtension));
    }
    [S$1._createNodeIterator](root, whatToShow = null, filter = null) {
      if (root == null) dart.nullFailed(I[166], 10438, 41, "root");
      return this.createNodeIterator(root, whatToShow, filter, false);
    }
    [S$1._createTreeWalker](root, whatToShow = null, filter = null) {
      if (root == null) dart.nullFailed(I[166], 10443, 37, "root");
      return this.createTreeWalker(root, whatToShow, filter, false);
    }
    get [S$1.$visibilityState]() {
      return this.visibilityState || this.mozVisibilityState || this.msVisibilityState || this.webkitVisibilityState;
    }
  };
  dart.addRtiResources(html$.Document, ["html|Document"]);
  dart.setMethodSignature(html$.Document, () => dart.global.Object.setPrototypeOf({
    [S$1.$adoptNode]: T$3.NodeToNode$1(),
    [S$1._caretRangeFromPoint]: T$5.intNAndintNToRange(),
    [S$1.$createDocumentFragment]: T$5.VoidToDocumentFragment(),
    [S$1._createElement]: T$5.StringAnddynamicToElement(),
    [S$1._createElementNS]: T$5.StringNAndStringAnddynamicToElement(),
    [S._createEvent]: T$5.StringToEvent(),
    [S$1.$createRange]: T$5.VoidToRange(),
    [S$1._createTextNode]: T$4.StringToText(),
    [S$1._createTouch]: T$5.WindowAndEventTargetAndint__ToTouch(),
    [S$1._createTouch_1]: T$5.WindowAnddynamicAnddynamic__ToTouch(),
    [S$1._createTouch_2]: T$5.WindowAnddynamicAnddynamic__ToTouch$1(),
    [S$1._createTouch_3]: T$5.WindowAnddynamicAnddynamic__ToTouch$2(),
    [S$1._createTouch_4]: T$5.WindowAnddynamicAnddynamic__ToTouch$3(),
    [S$1._createTouch_5]: T$5.WindowAnddynamicAnddynamic__ToTouch$4(),
    [S$1._createTouchList]: T$5.TouchToTouchList(),
    [S$1.$execCommand]: T$5.StringAndboolNAndStringNTobool(),
    [S$1.$exitFullscreen]: T$.VoidTovoid(),
    [S$1.$exitPointerLock]: T$.VoidTovoid(),
    [S.$getAnimations]: T$4.VoidToListOfAnimation(),
    [S.$getElementsByClassName]: T$4.StringToListOfNode(),
    [S$1.$getElementsByName]: T$4.StringToListOfNode(),
    [S$1.$getElementsByTagName]: T$4.StringToListOfNode(),
    [S$1.$importNode]: T$5.NodeAndboolNToNode(),
    [S$1.$queryCommandEnabled]: T$.StringTobool(),
    [S$1.$queryCommandIndeterm]: T$.StringTobool(),
    [S$1.$queryCommandState]: T$.StringTobool(),
    [S$1.$queryCommandSupported]: T$.StringTobool(),
    [S$1.$queryCommandValue]: T$.StringToString(),
    [S$1._webkitExitFullscreen]: T$.VoidTovoid(),
    [S$1._elementFromPoint]: T$5.intAndintToElementN(),
    [S$1.$elementsFromPoint]: T$5.intAndintToListOfElement(),
    [S$1.$getElementById]: T$4.StringToElementN(),
    [S.$querySelector]: T$4.StringToElementN(),
    [S._querySelectorAll]: T$4.StringToListOfNode(),
    [S.$querySelectorAll]: T$3.StringToElementListOfT(),
    [S.$createElement]: T$3.StringAndStringNToElement(),
    [S$1._createElement_2]: T$.StringTodynamic(),
    [S$1._createElementNS_2]: T$5.StringAndStringTodynamic(),
    [S$1.$createElementNS]: T$5.StringAndStringAndStringNToElement(),
    [S$1._createNodeIterator]: T$5.NodeAndintNAndNodeFilterNToNodeIterator(),
    [S$1._createTreeWalker]: T$5.NodeAndintNAndNodeFilterNToTreeWalker()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Document))));
  dart.setMethodsDefaultTypeArgSignature(html$.Document, () => dart.global.Object.setPrototypeOf({[S.$querySelectorAll]: [T$3.Element()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(html$.Document))));
  dart.setStaticMethodSignature(html$.Document, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.Document, () => dart.global.Object.setPrototypeOf({
    [S$0.$addressSpace]: T$.StringN(),
    [S$1._body]: T$5.HtmlElementN(),
    [S$1.$contentType]: T$.StringN(),
    [S$1.$cookie]: T$.StringN(),
    [S$1.$currentScript]: T$5.ScriptElementN(),
    [S$1.$window]: T$4.WindowBaseN(),
    [S$1._get_window]: T$.dynamic(),
    [S$1.$documentElement]: T$3.ElementN(),
    [S$1.$domain]: T$.StringN(),
    [S$1.$fullscreenEnabled]: T$.boolN(),
    [S$1._head$1]: T$5.HeadElementN(),
    [S.$hidden]: T$.boolN(),
    [S$1.$implementation]: T$5.DomImplementationN(),
    [S$1._lastModified]: T$.StringN(),
    [S$.$origin]: T$.StringN(),
    [S$1._preferredStylesheetSet]: T$.StringN(),
    [S.$readyState]: T$.StringN(),
    [S$1._referrer]: T$.String(),
    [S$1.$rootElement]: T$5.SvgSvgElementN(),
    [S$1.$rootScroller]: T$3.ElementN(),
    [S$1.$scrollingElement]: T$3.ElementN(),
    [S$1._selectedStylesheetSet]: T$.StringN(),
    [S$1.$suborigin]: T$.StringN(),
    [S$.$timeline]: T$5.DocumentTimelineN(),
    [S$1._title]: T$.String(),
    [S$1._visibilityState]: T$.StringN(),
    [S$1._webkitFullscreenElement]: T$3.ElementN(),
    [S$1._webkitFullscreenEnabled]: T$.boolN(),
    [S$1._webkitHidden]: T$.boolN(),
    [S$1._webkitVisibilityState]: T$.StringN(),
    [S$1.$activeElement]: T$3.ElementN(),
    [S$1.$fullscreenElement]: T$3.ElementN(),
    [S$1.$pointerLockElement]: T$3.ElementN(),
    [S$1._styleSheets]: T$5.ListNOfStyleSheet(),
    [S$1.$fonts]: T$5.FontFaceSetN(),
    [S._childElementCount]: T$.int(),
    [S._children]: T$4.ListNOfNode(),
    [S._firstElementChild]: T$3.ElementN(),
    [S._lastElementChild]: T$3.ElementN(),
    [S.$onAbort]: T$3.StreamOfEvent(),
    [S.$onBeforeCopy]: T$3.StreamOfEvent(),
    [S.$onBeforeCut]: T$3.StreamOfEvent(),
    [S.$onBeforePaste]: T$3.StreamOfEvent(),
    [S.$onBlur]: T$3.StreamOfEvent(),
    [S.$onCanPlay]: T$3.StreamOfEvent(),
    [S.$onCanPlayThrough]: T$3.StreamOfEvent(),
    [S.$onChange]: T$3.StreamOfEvent(),
    [S.$onClick]: T$5.StreamOfMouseEvent(),
    [S.$onContextMenu]: T$5.StreamOfMouseEvent(),
    [S.$onCopy]: T$5.StreamOfClipboardEvent(),
    [S.$onCut]: T$5.StreamOfClipboardEvent(),
    [S.$onDoubleClick]: T$3.StreamOfEvent(),
    [S.$onDrag]: T$5.StreamOfMouseEvent(),
    [S.$onDragEnd]: T$5.StreamOfMouseEvent(),
    [S.$onDragEnter]: T$5.StreamOfMouseEvent(),
    [S.$onDragLeave]: T$5.StreamOfMouseEvent(),
    [S.$onDragOver]: T$5.StreamOfMouseEvent(),
    [S.$onDragStart]: T$5.StreamOfMouseEvent(),
    [S.$onDrop]: T$5.StreamOfMouseEvent(),
    [S.$onDurationChange]: T$3.StreamOfEvent(),
    [S.$onEmptied]: T$3.StreamOfEvent(),
    [S.$onEnded]: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S.$onFocus]: T$3.StreamOfEvent(),
    [S.$onInput]: T$3.StreamOfEvent(),
    [S.$onInvalid]: T$3.StreamOfEvent(),
    [S.$onKeyDown]: T$5.StreamOfKeyboardEvent(),
    [S.$onKeyPress]: T$5.StreamOfKeyboardEvent(),
    [S.$onKeyUp]: T$5.StreamOfKeyboardEvent(),
    [S.$onLoad]: T$3.StreamOfEvent(),
    [S.$onLoadedData]: T$3.StreamOfEvent(),
    [S.$onLoadedMetadata]: T$3.StreamOfEvent(),
    [S.$onMouseDown]: T$5.StreamOfMouseEvent(),
    [S.$onMouseEnter]: T$5.StreamOfMouseEvent(),
    [S.$onMouseLeave]: T$5.StreamOfMouseEvent(),
    [S.$onMouseMove]: T$5.StreamOfMouseEvent(),
    [S$.$onMouseOut]: T$5.StreamOfMouseEvent(),
    [S$.$onMouseOver]: T$5.StreamOfMouseEvent(),
    [S$.$onMouseUp]: T$5.StreamOfMouseEvent(),
    [S$.$onMouseWheel]: T$5.StreamOfWheelEvent(),
    [S$.$onPaste]: T$5.StreamOfClipboardEvent(),
    [S$.$onPause]: T$3.StreamOfEvent(),
    [S$.$onPlay]: T$3.StreamOfEvent(),
    [S$.$onPlaying]: T$3.StreamOfEvent(),
    [S$1.$onPointerLockChange]: T$3.StreamOfEvent(),
    [S$1.$onPointerLockError]: T$3.StreamOfEvent(),
    [S$.$onRateChange]: T$3.StreamOfEvent(),
    [S$1.$onReadyStateChange]: T$3.StreamOfEvent(),
    [S$.$onReset]: T$3.StreamOfEvent(),
    [S$.$onResize]: T$3.StreamOfEvent(),
    [S$.$onScroll]: T$3.StreamOfEvent(),
    [S$.$onSearch]: T$3.StreamOfEvent(),
    [S$1.$onSecurityPolicyViolation]: T$5.StreamOfSecurityPolicyViolationEvent(),
    [S$.$onSeeked]: T$3.StreamOfEvent(),
    [S$.$onSeeking]: T$3.StreamOfEvent(),
    [S$.$onSelect]: T$3.StreamOfEvent(),
    [S$1.$onSelectionChange]: T$3.StreamOfEvent(),
    [S$.$onSelectStart]: T$3.StreamOfEvent(),
    [S$.$onStalled]: T$3.StreamOfEvent(),
    [S$.$onSubmit]: T$3.StreamOfEvent(),
    [S$.$onSuspend]: T$3.StreamOfEvent(),
    [S$.$onTimeUpdate]: T$3.StreamOfEvent(),
    [S$.$onTouchCancel]: T$5.StreamOfTouchEvent(),
    [S$.$onTouchEnd]: T$5.StreamOfTouchEvent(),
    [S$.$onTouchMove]: T$5.StreamOfTouchEvent(),
    [S$.$onTouchStart]: T$5.StreamOfTouchEvent(),
    [S$.$onVolumeChange]: T$3.StreamOfEvent(),
    [S$.$onWaiting]: T$3.StreamOfEvent(),
    [S$.$onFullscreenChange]: T$3.StreamOfEvent(),
    [S$.$onFullscreenError]: T$3.StreamOfEvent(),
    [S$1.$visibilityState]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Document))));
  dart.setSetterSignature(html$.Document, () => dart.global.Object.setPrototypeOf({
    [S$1._body]: T$5.HtmlElementN(),
    [S$1.$cookie]: T$.StringN(),
    [S$1.$rootScroller]: T$3.ElementN(),
    [S$1._selectedStylesheetSet]: T$.StringN(),
    [S$1._title]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Document))));
  dart.setLibraryUri(html$.Document, I[167]);
  dart.setStaticFieldSignature(html$.Document, () => ['pointerLockChangeEvent', 'pointerLockErrorEvent', 'readyStateChangeEvent', 'securityPolicyViolationEvent', 'selectionChangeEvent']);
  dart.defineLazy(html$.Document, {
    /*html$.Document.pointerLockChangeEvent*/get pointerLockChangeEvent() {
      return C[373] || CT.C373;
    },
    /*html$.Document.pointerLockErrorEvent*/get pointerLockErrorEvent() {
      return C[374] || CT.C374;
    },
    /*html$.Document.readyStateChangeEvent*/get readyStateChangeEvent() {
      return C[375] || CT.C375;
    },
    /*html$.Document.securityPolicyViolationEvent*/get securityPolicyViolationEvent() {
      return C[376] || CT.C376;
    },
    /*html$.Document.selectionChangeEvent*/get selectionChangeEvent() {
      return C[377] || CT.C377;
    }
  }, false);
  dart.registerExtension("Document", html$.Document);
  html$.DocumentFragment = class DocumentFragment extends html$.Node {
    get [S$1._docChildren]() {
      return this._docChildren;
    }
    set [S$1._docChildren](value) {
      this._docChildren = value;
    }
    static new() {
      return html$.document.createDocumentFragment();
    }
    static ['_#new#tearOff']() {
      return html$.DocumentFragment.new();
    }
    static html(html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      return dart.nullCheck(html$.document.body)[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer});
    }
    static ['_#html#tearOff'](html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      return html$.DocumentFragment.html(html, {validator: validator, treeSanitizer: treeSanitizer});
    }
    static svg(svgContent, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      return svg$.SvgSvgElement.new()[S.$createFragment](svgContent, {validator: validator, treeSanitizer: treeSanitizer});
    }
    static ['_#svg#tearOff'](svgContent, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      return html$.DocumentFragment.svg(svgContent, {validator: validator, treeSanitizer: treeSanitizer});
    }
    get [S._children]() {
      return dart.throw(new core.UnimplementedError.new("Use _docChildren instead"));
    }
    get [S.$children]() {
      if (this[S$1._docChildren] == null) {
        this[S$1._docChildren] = new html_common.FilteredElementList.new(this);
      }
      return dart.nullCheck(this[S$1._docChildren]);
    }
    set [S.$children](value) {
      if (value == null) dart.nullFailed(I[166], 10496, 30, "value");
      let copy = value[$toList]();
      let children = this[S.$children];
      children[$clear]();
      children[$addAll](copy);
    }
    [S.$querySelectorAll](T, selectors) {
      if (selectors == null) dart.nullFailed(I[166], 10515, 61, "selectors");
      return new (html$._FrozenElementList$(T))._wrap(this[S._querySelectorAll](selectors));
    }
    get [S.$innerHtml]() {
      let e = html$.DivElement.new();
      e[S.$append](this[S$.$clone](true));
      return e[S.$innerHtml];
    }
    set [S.$innerHtml](value) {
      this[S.$setInnerHtml](value);
    }
    [S.$setInnerHtml](html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      this[S.$nodes][$clear]();
      this[S.$append](dart.nullCheck(html$.document.body)[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer}));
    }
    [S.$appendText](text) {
      if (text == null) dart.nullFailed(I[166], 10542, 26, "text");
      this[S.$append](html$.Text.new(text));
    }
    [S.$appendHtml](text, opts) {
      if (text == null) dart.nullFailed(I[166], 10550, 26, "text");
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      this[S.$append](html$.DocumentFragment.html(text, {validator: validator, treeSanitizer: treeSanitizer}));
    }
    static ['_#_#tearOff']() {
      return html$.DocumentFragment.__();
    }
    [S$1.$getElementById](...args) {
      return this.getElementById.apply(this, args);
    }
    get [S._childElementCount]() {
      return this.childElementCount;
    }
    get [S._firstElementChild]() {
      return this.firstElementChild;
    }
    get [S._lastElementChild]() {
      return this.lastElementChild;
    }
    [S.$querySelector](...args) {
      return this.querySelector.apply(this, args);
    }
    [S._querySelectorAll](...args) {
      return this.querySelectorAll.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DocumentFragment, ["html|DocumentFragment", "html|ParentNode", "html|NonElementParentNode", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.DocumentFragment, () => dart.global.Object.setPrototypeOf({
    [S.$querySelectorAll]: T$3.StringToElementListOfT(),
    [S.$setInnerHtml]: T$4.StringN__Tovoid(),
    [S.$appendText]: T$.StringTovoid(),
    [S.$appendHtml]: T$3.String__Tovoid$5(),
    [S$1.$getElementById]: T$4.StringToElementN(),
    [S.$querySelector]: T$4.StringToElementN(),
    [S._querySelectorAll]: T$4.StringToListOfNode()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DocumentFragment))));
  dart.setMethodsDefaultTypeArgSignature(html$.DocumentFragment, () => dart.global.Object.setPrototypeOf({[S.$querySelectorAll]: [T$3.Element()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(html$.DocumentFragment))));
  dart.setStaticMethodSignature(html$.DocumentFragment, () => ['new', 'html', 'svg', '__']);
  dart.setGetterSignature(html$.DocumentFragment, () => dart.global.Object.setPrototypeOf({
    [S._children]: T$5.HtmlCollection(),
    [S.$children]: T$3.ListOfElement(),
    [S.$innerHtml]: T$.StringN(),
    [S._childElementCount]: T$.int(),
    [S._firstElementChild]: T$3.ElementN(),
    [S._lastElementChild]: T$3.ElementN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DocumentFragment))));
  dart.setSetterSignature(html$.DocumentFragment, () => dart.global.Object.setPrototypeOf({
    [S.$children]: T$3.ListOfElement(),
    [S.$innerHtml]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DocumentFragment))));
  dart.setLibraryUri(html$.DocumentFragment, I[167]);
  dart.setFieldSignature(html$.DocumentFragment, () => dart.global.Object.setPrototypeOf({[S$1._docChildren]: {type: T$5.ListNOfElement(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$.DocumentFragment))));
  dart.registerExtension("DocumentFragment", html$.DocumentFragment);
  html$.DocumentOrShadowRoot = class DocumentOrShadowRoot extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DocumentOrShadowRoot.__();
    }
    get [S$1.$activeElement]() {
      return this.activeElement;
    }
    get [S$1.$fullscreenElement]() {
      return this.fullscreenElement;
    }
    get [S$1.$pointerLockElement]() {
      return this.pointerLockElement;
    }
    get [S$1.$styleSheets]() {
      return this.styleSheets;
    }
    [S$1.$elementFromPoint](...args) {
      return this.elementFromPoint.apply(this, args);
    }
    [S$1.$elementsFromPoint](...args) {
      return this.elementsFromPoint.apply(this, args);
    }
    [S$1.$getSelection](...args) {
      return this.getSelection.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DocumentOrShadowRoot, ["html|DocumentOrShadowRoot"]);
  dart.setMethodSignature(html$.DocumentOrShadowRoot, () => dart.global.Object.setPrototypeOf({
    [S$1.$elementFromPoint]: T$5.intAndintToElementN(),
    [S$1.$elementsFromPoint]: T$5.intAndintToListOfElement(),
    [S$1.$getSelection]: T$5.VoidToSelectionN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DocumentOrShadowRoot))));
  dart.setStaticMethodSignature(html$.DocumentOrShadowRoot, () => ['__']);
  dart.setGetterSignature(html$.DocumentOrShadowRoot, () => dart.global.Object.setPrototypeOf({
    [S$1.$activeElement]: T$3.ElementN(),
    [S$1.$fullscreenElement]: T$3.ElementN(),
    [S$1.$pointerLockElement]: T$3.ElementN(),
    [S$1.$styleSheets]: T$5.ListNOfStyleSheet()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DocumentOrShadowRoot))));
  dart.setLibraryUri(html$.DocumentOrShadowRoot, I[167]);
  dart.registerExtension("DocumentOrShadowRoot", html$.DocumentOrShadowRoot);
  html$.DocumentTimeline = class DocumentTimeline$ extends html$.AnimationTimeline {
    static ['_#_#tearOff']() {
      return html$.DocumentTimeline.__();
    }
    static new(options = null) {
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return html$.DocumentTimeline._create_1(options_1);
      }
      return html$.DocumentTimeline._create_2();
    }
    static ['_#new#tearOff'](options = null) {
      return html$.DocumentTimeline.new(options);
    }
    static _create_1(options) {
      return new DocumentTimeline(options);
    }
    static _create_2() {
      return new DocumentTimeline();
    }
  };
  dart.addRtiResources(html$.DocumentTimeline, ["html|DocumentTimeline"]);
  dart.setStaticMethodSignature(html$.DocumentTimeline, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.DocumentTimeline, I[167]);
  dart.registerExtension("DocumentTimeline", html$.DocumentTimeline);
  html$.DomError = class DomError extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DomError.__();
    }
    static new(name, message = null) {
      if (name == null) dart.nullFailed(I[166], 10656, 27, "name");
      if (message != null) {
        return html$.DomError._create_1(name, message);
      }
      return html$.DomError._create_2(name);
    }
    static ['_#new#tearOff'](name, message = null) {
      if (name == null) dart.nullFailed(I[166], 10656, 27, "name");
      return html$.DomError.new(name, message);
    }
    static _create_1(name, message) {
      return new DOMError(name, message);
    }
    static _create_2(name) {
      return new DOMError(name);
    }
    get [$message]() {
      return this.message;
    }
    get [$name]() {
      return this.name;
    }
  };
  dart.addRtiResources(html$.DomError, ["html|DomError"]);
  dart.setStaticMethodSignature(html$.DomError, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.DomError, () => dart.global.Object.setPrototypeOf({
    [$message]: T$.StringN(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DomError))));
  dart.setLibraryUri(html$.DomError, I[167]);
  dart.registerExtension("DOMError", html$.DomError);
  html$.DomException = class DomException extends _interceptors.JavaScriptObject {
    get [$name]() {
      let errorName = this.name;
      if (dart.test(html_common.Device.isWebKit) && dart.equals(errorName, "SECURITY_ERR")) return "SecurityError";
      if (dart.test(html_common.Device.isWebKit) && dart.equals(errorName, "SYNTAX_ERR")) return "SyntaxError";
      return T$.String()[_as](errorName);
    }
    static ['_#_#tearOff']() {
      return html$.DomException.__();
    }
    get [$message]() {
      return this.message;
    }
    [$toString]() {
      return String(this);
    }
  };
  dart.addRtiResources(html$.DomException, ["html|DomException"]);
  dart.setStaticMethodSignature(html$.DomException, () => ['__']);
  dart.setGetterSignature(html$.DomException, () => dart.global.Object.setPrototypeOf({
    [$name]: T$.String(),
    [$message]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DomException))));
  dart.setLibraryUri(html$.DomException, I[167]);
  dart.setStaticFieldSignature(html$.DomException, () => ['INDEX_SIZE', 'HIERARCHY_REQUEST', 'WRONG_DOCUMENT', 'INVALID_CHARACTER', 'NO_MODIFICATION_ALLOWED', 'NOT_FOUND', 'NOT_SUPPORTED', 'INVALID_STATE', 'SYNTAX', 'INVALID_MODIFICATION', 'NAMESPACE', 'INVALID_ACCESS', 'TYPE_MISMATCH', 'SECURITY', 'NETWORK', 'ABORT', 'URL_MISMATCH', 'QUOTA_EXCEEDED', 'TIMEOUT', 'INVALID_NODE_TYPE', 'DATA_CLONE', 'ENCODING', 'NOT_READABLE', 'UNKNOWN', 'CONSTRAINT', 'TRANSACTION_INACTIVE', 'READ_ONLY', 'VERSION', 'OPERATION', 'NOT_ALLOWED', 'TYPE_ERROR']);
  dart.defineLazy(html$.DomException, {
    /*html$.DomException.INDEX_SIZE*/get INDEX_SIZE() {
      return "IndexSizeError";
    },
    /*html$.DomException.HIERARCHY_REQUEST*/get HIERARCHY_REQUEST() {
      return "HierarchyRequestError";
    },
    /*html$.DomException.WRONG_DOCUMENT*/get WRONG_DOCUMENT() {
      return "WrongDocumentError";
    },
    /*html$.DomException.INVALID_CHARACTER*/get INVALID_CHARACTER() {
      return "InvalidCharacterError";
    },
    /*html$.DomException.NO_MODIFICATION_ALLOWED*/get NO_MODIFICATION_ALLOWED() {
      return "NoModificationAllowedError";
    },
    /*html$.DomException.NOT_FOUND*/get NOT_FOUND() {
      return "NotFoundError";
    },
    /*html$.DomException.NOT_SUPPORTED*/get NOT_SUPPORTED() {
      return "NotSupportedError";
    },
    /*html$.DomException.INVALID_STATE*/get INVALID_STATE() {
      return "InvalidStateError";
    },
    /*html$.DomException.SYNTAX*/get SYNTAX() {
      return "SyntaxError";
    },
    /*html$.DomException.INVALID_MODIFICATION*/get INVALID_MODIFICATION() {
      return "InvalidModificationError";
    },
    /*html$.DomException.NAMESPACE*/get NAMESPACE() {
      return "NamespaceError";
    },
    /*html$.DomException.INVALID_ACCESS*/get INVALID_ACCESS() {
      return "InvalidAccessError";
    },
    /*html$.DomException.TYPE_MISMATCH*/get TYPE_MISMATCH() {
      return "TypeMismatchError";
    },
    /*html$.DomException.SECURITY*/get SECURITY() {
      return "SecurityError";
    },
    /*html$.DomException.NETWORK*/get NETWORK() {
      return "NetworkError";
    },
    /*html$.DomException.ABORT*/get ABORT() {
      return "AbortError";
    },
    /*html$.DomException.URL_MISMATCH*/get URL_MISMATCH() {
      return "URLMismatchError";
    },
    /*html$.DomException.QUOTA_EXCEEDED*/get QUOTA_EXCEEDED() {
      return "QuotaExceededError";
    },
    /*html$.DomException.TIMEOUT*/get TIMEOUT() {
      return "TimeoutError";
    },
    /*html$.DomException.INVALID_NODE_TYPE*/get INVALID_NODE_TYPE() {
      return "InvalidNodeTypeError";
    },
    /*html$.DomException.DATA_CLONE*/get DATA_CLONE() {
      return "DataCloneError";
    },
    /*html$.DomException.ENCODING*/get ENCODING() {
      return "EncodingError";
    },
    /*html$.DomException.NOT_READABLE*/get NOT_READABLE() {
      return "NotReadableError";
    },
    /*html$.DomException.UNKNOWN*/get UNKNOWN() {
      return "UnknownError";
    },
    /*html$.DomException.CONSTRAINT*/get CONSTRAINT() {
      return "ConstraintError";
    },
    /*html$.DomException.TRANSACTION_INACTIVE*/get TRANSACTION_INACTIVE() {
      return "TransactionInactiveError";
    },
    /*html$.DomException.READ_ONLY*/get READ_ONLY() {
      return "ReadOnlyError";
    },
    /*html$.DomException.VERSION*/get VERSION() {
      return "VersionError";
    },
    /*html$.DomException.OPERATION*/get OPERATION() {
      return "OperationError";
    },
    /*html$.DomException.NOT_ALLOWED*/get NOT_ALLOWED() {
      return "NotAllowedError";
    },
    /*html$.DomException.TYPE_ERROR*/get TYPE_ERROR() {
      return "TypeError";
    }
  }, false);
  dart.registerExtension("DOMException", html$.DomException);
  html$.DomImplementation = class DomImplementation extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DomImplementation.__();
    }
    [S$1.$createDocument](...args) {
      return this.createDocument.apply(this, args);
    }
    [S$1.$createDocumentType](...args) {
      return this.createDocumentType.apply(this, args);
    }
    [S.$createHtmlDocument](...args) {
      return this.createHTMLDocument.apply(this, args);
    }
    [S$1.$hasFeature](...args) {
      return this.hasFeature.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomImplementation, ["html|DomImplementation"]);
  dart.setMethodSignature(html$.DomImplementation, () => dart.global.Object.setPrototypeOf({
    [S$1.$createDocument]: T$5.StringNAndStringAnd_DocumentTypeNToXmlDocument(),
    [S$1.$createDocumentType]: T$5.StringAndStringAndStringTo_DocumentType(),
    [S.$createHtmlDocument]: T$5.StringNToHtmlDocument(),
    [S$1.$hasFeature]: T$.VoidTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomImplementation))));
  dart.setStaticMethodSignature(html$.DomImplementation, () => ['__']);
  dart.setLibraryUri(html$.DomImplementation, I[167]);
  dart.registerExtension("DOMImplementation", html$.DomImplementation);
  html$.DomIterator = class DomIterator extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DomIterator.__();
    }
    [S.$next](...args) {
      return this.next.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomIterator, ["html|DomIterator"]);
  dart.setMethodSignature(html$.DomIterator, () => dart.global.Object.setPrototypeOf({[S.$next]: T$5.ObjectNToObjectN$1()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomIterator))));
  dart.setStaticMethodSignature(html$.DomIterator, () => ['__']);
  dart.setLibraryUri(html$.DomIterator, I[167]);
  dart.registerExtension("Iterator", html$.DomIterator);
  html$.DomMatrixReadOnly = class DomMatrixReadOnly extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DomMatrixReadOnly.__();
    }
    static ['_#new#tearOff'](init = null) {
      return html$.DomMatrixReadOnly.new(init);
    }
    static new(init = null) {
      if (init != null) {
        return html$.DomMatrixReadOnly._create_1(init);
      }
      return html$.DomMatrixReadOnly._create_2();
    }
    static _create_1(init) {
      return new DOMMatrixReadOnly(init);
    }
    static _create_2() {
      return new DOMMatrixReadOnly();
    }
    get [S$1.$a]() {
      return this.a;
    }
    get [S$1.$b]() {
      return this.b;
    }
    get [S$1.$c]() {
      return this.c;
    }
    get [S$1.$d]() {
      return this.d;
    }
    get [S$1.$e]() {
      return this.e;
    }
    get [S$1.$f]() {
      return this.f;
    }
    get [S$.$is2D]() {
      return this.is2D;
    }
    get [S$1.$isIdentity]() {
      return this.isIdentity;
    }
    get [S$1.$m11]() {
      return this.m11;
    }
    get [S$1.$m12]() {
      return this.m12;
    }
    get [S$1.$m13]() {
      return this.m13;
    }
    get [S$1.$m14]() {
      return this.m14;
    }
    get [S$1.$m21]() {
      return this.m21;
    }
    get [S$1.$m22]() {
      return this.m22;
    }
    get [S$1.$m23]() {
      return this.m23;
    }
    get [S$1.$m24]() {
      return this.m24;
    }
    get [S$1.$m31]() {
      return this.m31;
    }
    get [S$1.$m32]() {
      return this.m32;
    }
    get [S$1.$m33]() {
      return this.m33;
    }
    get [S$1.$m34]() {
      return this.m34;
    }
    get [S$1.$m41]() {
      return this.m41;
    }
    get [S$1.$m42]() {
      return this.m42;
    }
    get [S$1.$m43]() {
      return this.m43;
    }
    get [S$1.$m44]() {
      return this.m44;
    }
    [S$1.$flipX](...args) {
      return this.flipX.apply(this, args);
    }
    [S$1.$flipY](...args) {
      return this.flipY.apply(this, args);
    }
    static fromMatrix(other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return dart.global.DOMMatrixReadOnly.fromMatrix(other_1);
      }
      return dart.global.DOMMatrixReadOnly.fromMatrix();
    }
    [S$1.$inverse](...args) {
      return this.inverse.apply(this, args);
    }
    [S$1.$multiply](other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return this[S$1._multiply_1](other_1);
      }
      return this[S$1._multiply_2]();
    }
    [S$1._multiply_1](...args) {
      return this.multiply.apply(this, args);
    }
    [S$1._multiply_2](...args) {
      return this.multiply.apply(this, args);
    }
    [S$.$rotate](...args) {
      return this.rotate.apply(this, args);
    }
    [S$1.$rotateAxisAngle](...args) {
      return this.rotateAxisAngle.apply(this, args);
    }
    [S$1.$rotateFromVector](...args) {
      return this.rotateFromVector.apply(this, args);
    }
    [S$.$scale](...args) {
      return this.scale.apply(this, args);
    }
    [S$1.$scale3d](...args) {
      return this.scale3d.apply(this, args);
    }
    [S$1.$skewX](...args) {
      return this.skewX.apply(this, args);
    }
    [S$1.$skewY](...args) {
      return this.skewY.apply(this, args);
    }
    [S$1.$toFloat32Array](...args) {
      return this.toFloat32Array.apply(this, args);
    }
    [S$1.$toFloat64Array](...args) {
      return this.toFloat64Array.apply(this, args);
    }
    [S$1.$transformPoint](point = null) {
      if (point != null) {
        let point_1 = html_common.convertDartToNative_Dictionary(point);
        return this[S$1._transformPoint_1](point_1);
      }
      return this[S$1._transformPoint_2]();
    }
    [S$1._transformPoint_1](...args) {
      return this.transformPoint.apply(this, args);
    }
    [S$1._transformPoint_2](...args) {
      return this.transformPoint.apply(this, args);
    }
    [S.$translate](...args) {
      return this.translate.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomMatrixReadOnly, ["html|DomMatrixReadOnly"]);
  dart.setMethodSignature(html$.DomMatrixReadOnly, () => dart.global.Object.setPrototypeOf({
    [S$1.$flipX]: T$4.VoidToDomMatrix(),
    [S$1.$flipY]: T$4.VoidToDomMatrix(),
    [S$1.$inverse]: T$4.VoidToDomMatrix(),
    [S$1.$multiply]: T$5.MapNToDomMatrix(),
    [S$1._multiply_1]: T$5.dynamicToDomMatrix(),
    [S$1._multiply_2]: T$4.VoidToDomMatrix(),
    [S$.$rotate]: T$5.numNAndnumNAndnumNToDomMatrix(),
    [S$1.$rotateAxisAngle]: T$5.numNAndnumNAndnumN__ToDomMatrix(),
    [S$1.$rotateFromVector]: T$5.numNAndnumNToDomMatrix(),
    [S$.$scale]: T$5.numNAndnumNAndnumN__ToDomMatrix$1(),
    [S$1.$scale3d]: T$5.numNAndnumNAndnumN__ToDomMatrix(),
    [S$1.$skewX]: T$5.numNToDomMatrix(),
    [S$1.$skewY]: T$5.numNToDomMatrix(),
    [S$1.$toFloat32Array]: T$0.VoidToFloat32List(),
    [S$1.$toFloat64Array]: T$0.VoidToFloat64List(),
    [S$1.$transformPoint]: T$5.MapNToDomPoint(),
    [S$1._transformPoint_1]: T$5.dynamicToDomPoint(),
    [S$1._transformPoint_2]: T$5.VoidToDomPoint(),
    [S.$translate]: T$5.numNAndnumNAndnumNToDomMatrix()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomMatrixReadOnly))));
  dart.setStaticMethodSignature(html$.DomMatrixReadOnly, () => ['__', 'new', '_create_1', '_create_2', 'fromFloat32Array', 'fromFloat64Array', 'fromMatrix', '_fromMatrix_1', '_fromMatrix_2']);
  dart.setGetterSignature(html$.DomMatrixReadOnly, () => dart.global.Object.setPrototypeOf({
    [S$1.$a]: T$3.numN(),
    [S$1.$b]: T$3.numN(),
    [S$1.$c]: T$3.numN(),
    [S$1.$d]: T$3.numN(),
    [S$1.$e]: T$3.numN(),
    [S$1.$f]: T$3.numN(),
    [S$.$is2D]: T$.boolN(),
    [S$1.$isIdentity]: T$.boolN(),
    [S$1.$m11]: T$3.numN(),
    [S$1.$m12]: T$3.numN(),
    [S$1.$m13]: T$3.numN(),
    [S$1.$m14]: T$3.numN(),
    [S$1.$m21]: T$3.numN(),
    [S$1.$m22]: T$3.numN(),
    [S$1.$m23]: T$3.numN(),
    [S$1.$m24]: T$3.numN(),
    [S$1.$m31]: T$3.numN(),
    [S$1.$m32]: T$3.numN(),
    [S$1.$m33]: T$3.numN(),
    [S$1.$m34]: T$3.numN(),
    [S$1.$m41]: T$3.numN(),
    [S$1.$m42]: T$3.numN(),
    [S$1.$m43]: T$3.numN(),
    [S$1.$m44]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DomMatrixReadOnly))));
  dart.setLibraryUri(html$.DomMatrixReadOnly, I[167]);
  dart.registerExtension("DOMMatrixReadOnly", html$.DomMatrixReadOnly);
  html$.DomMatrix = class DomMatrix extends html$.DomMatrixReadOnly {
    static ['_#_#tearOff']() {
      return html$.DomMatrix.__();
    }
    static new(init = null) {
      if (init != null) {
        return html$.DomMatrix._create_1(init);
      }
      return html$.DomMatrix._create_2();
    }
    static ['_#new#tearOff'](init = null) {
      return html$.DomMatrix.new(init);
    }
    static _create_1(init) {
      return new DOMMatrix(init);
    }
    static _create_2() {
      return new DOMMatrix();
    }
    get [S$1.$a]() {
      return this.a;
    }
    set [S$1.$a](value) {
      this.a = value;
    }
    get [S$1.$b]() {
      return this.b;
    }
    set [S$1.$b](value) {
      this.b = value;
    }
    get [S$1.$c]() {
      return this.c;
    }
    set [S$1.$c](value) {
      this.c = value;
    }
    get [S$1.$d]() {
      return this.d;
    }
    set [S$1.$d](value) {
      this.d = value;
    }
    get [S$1.$e]() {
      return this.e;
    }
    set [S$1.$e](value) {
      this.e = value;
    }
    get [S$1.$f]() {
      return this.f;
    }
    set [S$1.$f](value) {
      this.f = value;
    }
    get [S$1.$m11]() {
      return this.m11;
    }
    set [S$1.$m11](value) {
      this.m11 = value;
    }
    get [S$1.$m12]() {
      return this.m12;
    }
    set [S$1.$m12](value) {
      this.m12 = value;
    }
    get [S$1.$m13]() {
      return this.m13;
    }
    set [S$1.$m13](value) {
      this.m13 = value;
    }
    get [S$1.$m14]() {
      return this.m14;
    }
    set [S$1.$m14](value) {
      this.m14 = value;
    }
    get [S$1.$m21]() {
      return this.m21;
    }
    set [S$1.$m21](value) {
      this.m21 = value;
    }
    get [S$1.$m22]() {
      return this.m22;
    }
    set [S$1.$m22](value) {
      this.m22 = value;
    }
    get [S$1.$m23]() {
      return this.m23;
    }
    set [S$1.$m23](value) {
      this.m23 = value;
    }
    get [S$1.$m24]() {
      return this.m24;
    }
    set [S$1.$m24](value) {
      this.m24 = value;
    }
    get [S$1.$m31]() {
      return this.m31;
    }
    set [S$1.$m31](value) {
      this.m31 = value;
    }
    get [S$1.$m32]() {
      return this.m32;
    }
    set [S$1.$m32](value) {
      this.m32 = value;
    }
    get [S$1.$m33]() {
      return this.m33;
    }
    set [S$1.$m33](value) {
      this.m33 = value;
    }
    get [S$1.$m34]() {
      return this.m34;
    }
    set [S$1.$m34](value) {
      this.m34 = value;
    }
    get [S$1.$m41]() {
      return this.m41;
    }
    set [S$1.$m41](value) {
      this.m41 = value;
    }
    get [S$1.$m42]() {
      return this.m42;
    }
    set [S$1.$m42](value) {
      this.m42 = value;
    }
    get [S$1.$m43]() {
      return this.m43;
    }
    set [S$1.$m43](value) {
      this.m43 = value;
    }
    get [S$1.$m44]() {
      return this.m44;
    }
    set [S$1.$m44](value) {
      this.m44 = value;
    }
    static fromMatrix(other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return dart.global.DOMMatrix.fromMatrix(other_1);
      }
      return dart.global.DOMMatrix.fromMatrix();
    }
    [S$1.$invertSelf](...args) {
      return this.invertSelf.apply(this, args);
    }
    [S$1.$multiplySelf](other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return this[S$1._multiplySelf_1](other_1);
      }
      return this[S$1._multiplySelf_2]();
    }
    [S$1._multiplySelf_1](...args) {
      return this.multiplySelf.apply(this, args);
    }
    [S$1._multiplySelf_2](...args) {
      return this.multiplySelf.apply(this, args);
    }
    [S$1.$preMultiplySelf](other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return this[S$1._preMultiplySelf_1](other_1);
      }
      return this[S$1._preMultiplySelf_2]();
    }
    [S$1._preMultiplySelf_1](...args) {
      return this.preMultiplySelf.apply(this, args);
    }
    [S$1._preMultiplySelf_2](...args) {
      return this.preMultiplySelf.apply(this, args);
    }
    [S$1.$rotateAxisAngleSelf](...args) {
      return this.rotateAxisAngleSelf.apply(this, args);
    }
    [S$1.$rotateFromVectorSelf](...args) {
      return this.rotateFromVectorSelf.apply(this, args);
    }
    [S$1.$rotateSelf](...args) {
      return this.rotateSelf.apply(this, args);
    }
    [S$1.$scale3dSelf](...args) {
      return this.scale3dSelf.apply(this, args);
    }
    [S$1.$scaleSelf](...args) {
      return this.scaleSelf.apply(this, args);
    }
    [S$1.$setMatrixValue](...args) {
      return this.setMatrixValue.apply(this, args);
    }
    [S$1.$skewXSelf](...args) {
      return this.skewXSelf.apply(this, args);
    }
    [S$1.$skewYSelf](...args) {
      return this.skewYSelf.apply(this, args);
    }
    [S$1.$translateSelf](...args) {
      return this.translateSelf.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomMatrix, ["html|DomMatrix"]);
  dart.setMethodSignature(html$.DomMatrix, () => dart.global.Object.setPrototypeOf({
    [S$1.$invertSelf]: T$4.VoidToDomMatrix(),
    [S$1.$multiplySelf]: T$5.MapNToDomMatrix(),
    [S$1._multiplySelf_1]: T$5.dynamicToDomMatrix(),
    [S$1._multiplySelf_2]: T$4.VoidToDomMatrix(),
    [S$1.$preMultiplySelf]: T$5.MapNToDomMatrix(),
    [S$1._preMultiplySelf_1]: T$5.dynamicToDomMatrix(),
    [S$1._preMultiplySelf_2]: T$4.VoidToDomMatrix(),
    [S$1.$rotateAxisAngleSelf]: T$5.numNAndnumNAndnumN__ToDomMatrix(),
    [S$1.$rotateFromVectorSelf]: T$5.numNAndnumNToDomMatrix(),
    [S$1.$rotateSelf]: T$5.numNAndnumNAndnumNToDomMatrix(),
    [S$1.$scale3dSelf]: T$5.numNAndnumNAndnumN__ToDomMatrix(),
    [S$1.$scaleSelf]: T$5.numNAndnumNAndnumN__ToDomMatrix$1(),
    [S$1.$setMatrixValue]: T$5.StringToDomMatrix(),
    [S$1.$skewXSelf]: T$5.numNToDomMatrix(),
    [S$1.$skewYSelf]: T$5.numNToDomMatrix(),
    [S$1.$translateSelf]: T$5.numNAndnumNAndnumNToDomMatrix()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomMatrix))));
  dart.setStaticMethodSignature(html$.DomMatrix, () => ['__', 'new', '_create_1', '_create_2', 'fromFloat32Array', 'fromFloat64Array', 'fromMatrix', '_fromMatrix_1', '_fromMatrix_2']);
  dart.setSetterSignature(html$.DomMatrix, () => dart.global.Object.setPrototypeOf({
    [S$1.$a]: T$3.numN(),
    [S$1.$b]: T$3.numN(),
    [S$1.$c]: T$3.numN(),
    [S$1.$d]: T$3.numN(),
    [S$1.$e]: T$3.numN(),
    [S$1.$f]: T$3.numN(),
    [S$1.$m11]: T$3.numN(),
    [S$1.$m12]: T$3.numN(),
    [S$1.$m13]: T$3.numN(),
    [S$1.$m14]: T$3.numN(),
    [S$1.$m21]: T$3.numN(),
    [S$1.$m22]: T$3.numN(),
    [S$1.$m23]: T$3.numN(),
    [S$1.$m24]: T$3.numN(),
    [S$1.$m31]: T$3.numN(),
    [S$1.$m32]: T$3.numN(),
    [S$1.$m33]: T$3.numN(),
    [S$1.$m34]: T$3.numN(),
    [S$1.$m41]: T$3.numN(),
    [S$1.$m42]: T$3.numN(),
    [S$1.$m43]: T$3.numN(),
    [S$1.$m44]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DomMatrix))));
  dart.setLibraryUri(html$.DomMatrix, I[167]);
  dart.registerExtension("DOMMatrix", html$.DomMatrix);
  html$.DomParser = class DomParser extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DomParser.__();
    }
    static new() {
      return html$.DomParser._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.DomParser.new();
    }
    static _create_1() {
      return new DOMParser();
    }
    [S$1.$parseFromString](...args) {
      return this.parseFromString.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomParser, ["html|DomParser"]);
  dart.setMethodSignature(html$.DomParser, () => dart.global.Object.setPrototypeOf({[S$1.$parseFromString]: T$5.StringAndStringToDocument()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomParser))));
  dart.setStaticMethodSignature(html$.DomParser, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$.DomParser, I[167]);
  dart.registerExtension("DOMParser", html$.DomParser);
  html$.DomPointReadOnly = class DomPointReadOnly extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DomPointReadOnly.__();
    }
    static new(x = null, y = null, z = null, w = null) {
      if (w != null) {
        return html$.DomPointReadOnly._create_1(x, y, z, w);
      }
      if (z != null) {
        return html$.DomPointReadOnly._create_2(x, y, z);
      }
      if (y != null) {
        return html$.DomPointReadOnly._create_3(x, y);
      }
      if (x != null) {
        return html$.DomPointReadOnly._create_4(x);
      }
      return html$.DomPointReadOnly._create_5();
    }
    static ['_#new#tearOff'](x = null, y = null, z = null, w = null) {
      return html$.DomPointReadOnly.new(x, y, z, w);
    }
    static _create_1(x, y, z, w) {
      return new DOMPointReadOnly(x, y, z, w);
    }
    static _create_2(x, y, z) {
      return new DOMPointReadOnly(x, y, z);
    }
    static _create_3(x, y) {
      return new DOMPointReadOnly(x, y);
    }
    static _create_4(x) {
      return new DOMPointReadOnly(x);
    }
    static _create_5() {
      return new DOMPointReadOnly();
    }
    get [S$1.$w]() {
      return this.w;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$z]() {
      return this.z;
    }
    static fromPoint(other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return dart.global.DOMPointReadOnly.fromPoint(other_1);
      }
      return dart.global.DOMPointReadOnly.fromPoint();
    }
    [S$1.$matrixTransform](matrix = null) {
      if (matrix != null) {
        let matrix_1 = html_common.convertDartToNative_Dictionary(matrix);
        return this[S$1._matrixTransform_1](matrix_1);
      }
      return this[S$1._matrixTransform_2]();
    }
    [S$1._matrixTransform_1](...args) {
      return this.matrixTransform.apply(this, args);
    }
    [S$1._matrixTransform_2](...args) {
      return this.matrixTransform.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomPointReadOnly, ["html|DomPointReadOnly"]);
  dart.setMethodSignature(html$.DomPointReadOnly, () => dart.global.Object.setPrototypeOf({
    [S$1.$matrixTransform]: T$5.MapNToDomPoint(),
    [S$1._matrixTransform_1]: T$5.dynamicToDomPoint(),
    [S$1._matrixTransform_2]: T$5.VoidToDomPoint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomPointReadOnly))));
  dart.setStaticMethodSignature(html$.DomPointReadOnly, () => ['__', 'new', '_create_1', '_create_2', '_create_3', '_create_4', '_create_5', 'fromPoint', '_fromPoint_1', '_fromPoint_2']);
  dart.setGetterSignature(html$.DomPointReadOnly, () => dart.global.Object.setPrototypeOf({
    [S$1.$w]: T$3.numN(),
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DomPointReadOnly))));
  dart.setLibraryUri(html$.DomPointReadOnly, I[167]);
  dart.registerExtension("DOMPointReadOnly", html$.DomPointReadOnly);
  html$.DomPoint = class DomPoint extends html$.DomPointReadOnly {
    static ['_#_#tearOff']() {
      return html$.DomPoint.__();
    }
    static new(x = null, y = null, z = null, w = null) {
      if (w != null) {
        return html$.DomPoint._create_1(x, y, z, w);
      }
      if (z != null) {
        return html$.DomPoint._create_2(x, y, z);
      }
      if (y != null) {
        return html$.DomPoint._create_3(x, y);
      }
      if (x != null) {
        return html$.DomPoint._create_4(x);
      }
      return html$.DomPoint._create_5();
    }
    static ['_#new#tearOff'](x = null, y = null, z = null, w = null) {
      return html$.DomPoint.new(x, y, z, w);
    }
    static _create_1(x, y, z, w) {
      return new DOMPoint(x, y, z, w);
    }
    static _create_2(x, y, z) {
      return new DOMPoint(x, y, z);
    }
    static _create_3(x, y) {
      return new DOMPoint(x, y);
    }
    static _create_4(x) {
      return new DOMPoint(x);
    }
    static _create_5() {
      return new DOMPoint();
    }
    static get supported() {
      return !!window.DOMPoint || !!window.WebKitPoint;
    }
    get [S$1.$w]() {
      return this.w;
    }
    set [S$1.$w](value) {
      this.w = value;
    }
    get [S$.$x]() {
      return this.x;
    }
    set [S$.$x](value) {
      this.x = value;
    }
    get [S$.$y]() {
      return this.y;
    }
    set [S$.$y](value) {
      this.y = value;
    }
    get [S$.$z]() {
      return this.z;
    }
    set [S$.$z](value) {
      this.z = value;
    }
    static fromPoint(other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return dart.global.DOMPoint.fromPoint(other_1);
      }
      return dart.global.DOMPoint.fromPoint();
    }
  };
  dart.addRtiResources(html$.DomPoint, ["html|DomPoint"]);
  dart.setStaticMethodSignature(html$.DomPoint, () => ['__', 'new', '_create_1', '_create_2', '_create_3', '_create_4', '_create_5', 'fromPoint', '_fromPoint_1', '_fromPoint_2']);
  dart.setSetterSignature(html$.DomPoint, () => dart.global.Object.setPrototypeOf({
    [S$1.$w]: T$3.numN(),
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DomPoint))));
  dart.setStaticGetterSignature(html$.DomPoint, () => ['supported']);
  dart.setLibraryUri(html$.DomPoint, I[167]);
  dart.registerExtension("DOMPoint", html$.DomPoint);
  html$.DomQuad = class DomQuad extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DomQuad.__();
    }
    static new(p1 = null, p2 = null, p3 = null, p4 = null) {
      if (p4 != null) {
        let p1_1 = html_common.convertDartToNative_Dictionary(p1);
        let p2_2 = html_common.convertDartToNative_Dictionary(p2);
        let p3_3 = html_common.convertDartToNative_Dictionary(p3);
        let p4_4 = html_common.convertDartToNative_Dictionary(p4);
        return html$.DomQuad._create_1(p1_1, p2_2, p3_3, p4_4);
      }
      if (p3 != null) {
        let p1_1 = html_common.convertDartToNative_Dictionary(p1);
        let p2_2 = html_common.convertDartToNative_Dictionary(p2);
        let p3_3 = html_common.convertDartToNative_Dictionary(p3);
        return html$.DomQuad._create_2(p1_1, p2_2, p3_3);
      }
      if (p2 != null) {
        let p1_1 = html_common.convertDartToNative_Dictionary(p1);
        let p2_2 = html_common.convertDartToNative_Dictionary(p2);
        return html$.DomQuad._create_3(p1_1, p2_2);
      }
      if (p1 != null) {
        let p1_1 = html_common.convertDartToNative_Dictionary(p1);
        return html$.DomQuad._create_4(p1_1);
      }
      return html$.DomQuad._create_5();
    }
    static ['_#new#tearOff'](p1 = null, p2 = null, p3 = null, p4 = null) {
      return html$.DomQuad.new(p1, p2, p3, p4);
    }
    static _create_1(p1, p2, p3, p4) {
      return new DOMQuad(p1, p2, p3, p4);
    }
    static _create_2(p1, p2, p3) {
      return new DOMQuad(p1, p2, p3);
    }
    static _create_3(p1, p2) {
      return new DOMQuad(p1, p2);
    }
    static _create_4(p1) {
      return new DOMQuad(p1);
    }
    static _create_5() {
      return new DOMQuad();
    }
    get [S$1.$p1]() {
      return this.p1;
    }
    get [S$1.$p2]() {
      return this.p2;
    }
    get [S$1.$p3]() {
      return this.p3;
    }
    get [S$1.$p4]() {
      return this.p4;
    }
    static fromQuad(other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return dart.global.DOMQuad.fromQuad(other_1);
      }
      return dart.global.DOMQuad.fromQuad();
    }
    static fromRect(other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return dart.global.DOMQuad.fromRect(other_1);
      }
      return dart.global.DOMQuad.fromRect();
    }
    [S$1.$getBounds](...args) {
      return this.getBounds.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomQuad, ["html|DomQuad"]);
  dart.setMethodSignature(html$.DomQuad, () => dart.global.Object.setPrototypeOf({[S$1.$getBounds]: T$4.VoidToRectangleOfnum()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomQuad))));
  dart.setStaticMethodSignature(html$.DomQuad, () => ['__', 'new', '_create_1', '_create_2', '_create_3', '_create_4', '_create_5', 'fromQuad', '_fromQuad_1', '_fromQuad_2', 'fromRect', '_fromRect_1', '_fromRect_2']);
  dart.setGetterSignature(html$.DomQuad, () => dart.global.Object.setPrototypeOf({
    [S$1.$p1]: T$5.DomPointN(),
    [S$1.$p2]: T$5.DomPointN(),
    [S$1.$p3]: T$5.DomPointN(),
    [S$1.$p4]: T$5.DomPointN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DomQuad))));
  dart.setLibraryUri(html$.DomQuad, I[167]);
  dart.registerExtension("DOMQuad", html$.DomQuad);
  html$.ImmutableListMixin$ = dart.generic(E => {
    var __t$ImmutableListMixinOfE = () => (__t$ImmutableListMixinOfE = dart.constFn(E[_eval]("html|ImmutableListMixin<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(E[_eval]("~([core|int(0,0)?])")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$VoidToE = () => (__t$VoidToE = dart.constFn(E[_eval]("0()")))();
    var __t$FnTovoid$ = () => (__t$FnTovoid$ = dart.constFn(E[_eval]("~(core|bool(0))")))();
    var __t$FixedSizeListIteratorOfE = () => (__t$FixedSizeListIteratorOfE = dart.constFn(html$.FixedSizeListIterator$(E)))();
    class ImmutableListMixin extends core.Object {
      get iterator() {
        return new (__t$FixedSizeListIteratorOfE()).new(this);
      }
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
      add(value) {
        E[_as](value);
        dart.throw(new core.UnsupportedError.new("Cannot add to immutable List."));
      }
      addAll(iterable) {
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[166], 37936, 27, "iterable");
        dart.throw(new core.UnsupportedError.new("Cannot add to immutable List."));
      }
      sort(compare = null) {
        dart.throw(new core.UnsupportedError.new("Cannot sort immutable List."));
      }
      shuffle(random = null) {
        dart.throw(new core.UnsupportedError.new("Cannot shuffle immutable List."));
      }
      insert(index, element) {
        if (index == null) dart.nullFailed(I[166], 37948, 19, "index");
        E[_as](element);
        dart.throw(new core.UnsupportedError.new("Cannot add to immutable List."));
      }
      insertAll(index, iterable) {
        if (index == null) dart.nullFailed(I[166], 37952, 22, "index");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[166], 37952, 41, "iterable");
        dart.throw(new core.UnsupportedError.new("Cannot add to immutable List."));
      }
      setAll(index, iterable) {
        if (index == null) dart.nullFailed(I[166], 37956, 19, "index");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[166], 37956, 38, "iterable");
        dart.throw(new core.UnsupportedError.new("Cannot modify an immutable List."));
      }
      removeAt(pos) {
        if (pos == null) dart.nullFailed(I[166], 37960, 18, "pos");
        dart.throw(new core.UnsupportedError.new("Cannot remove from immutable List."));
      }
      removeLast() {
        dart.throw(new core.UnsupportedError.new("Cannot remove from immutable List."));
      }
      remove(object) {
        dart.throw(new core.UnsupportedError.new("Cannot remove from immutable List."));
      }
      removeWhere(test) {
        if (test == null) dart.nullFailed(I[166], 37972, 25, "test");
        dart.throw(new core.UnsupportedError.new("Cannot remove from immutable List."));
      }
      retainWhere(test) {
        if (test == null) dart.nullFailed(I[166], 37976, 25, "test");
        dart.throw(new core.UnsupportedError.new("Cannot remove from immutable List."));
      }
      setRange(start, end, iterable, skipCount = 0) {
        if (start == null) dart.nullFailed(I[166], 37980, 21, "start");
        if (end == null) dart.nullFailed(I[166], 37980, 32, "end");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[166], 37980, 49, "iterable");
        if (skipCount == null) dart.nullFailed(I[166], 37980, 64, "skipCount");
        dart.throw(new core.UnsupportedError.new("Cannot setRange on immutable List."));
      }
      removeRange(start, end) {
        if (start == null) dart.nullFailed(I[166], 37984, 24, "start");
        if (end == null) dart.nullFailed(I[166], 37984, 35, "end");
        dart.throw(new core.UnsupportedError.new("Cannot removeRange on immutable List."));
      }
      replaceRange(start, end, iterable) {
        if (start == null) dart.nullFailed(I[166], 37988, 25, "start");
        if (end == null) dart.nullFailed(I[166], 37988, 36, "end");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[166], 37988, 53, "iterable");
        dart.throw(new core.UnsupportedError.new("Cannot modify an immutable List."));
      }
      fillRange(start, end, fillValue = null) {
        if (start == null) dart.nullFailed(I[166], 37992, 22, "start");
        if (end == null) dart.nullFailed(I[166], 37992, 33, "end");
        __t$EN()[_as](fillValue);
        dart.throw(new core.UnsupportedError.new("Cannot modify an immutable List."));
      }
    }
    (ImmutableListMixin.new = function() {
      this.$ti = this.$ti || __t$ImmutableListMixinOfE();
      ;
    }).prototype = ImmutableListMixin.prototype;
    dart.addRtiResources(ImmutableListMixin, ["html|ImmutableListMixin", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(ImmutableListMixin, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      [$add]: T$.ObjectNTovoid(),
      addAll: T$.ObjectNTovoid(),
      [$addAll]: T$.ObjectNTovoid(),
      sort: __t$FnTovoid(),
      [$sort]: __t$FnTovoid(),
      shuffle: T$.RandomNTovoid(),
      [$shuffle]: T$.RandomNTovoid(),
      insert: T$.intAndObjectNTovoid(),
      [$insert]: T$.intAndObjectNTovoid(),
      insertAll: T$.intAndObjectNTovoid(),
      [$insertAll]: T$.intAndObjectNTovoid(),
      setAll: T$.intAndObjectNTovoid(),
      [$setAll]: T$.intAndObjectNTovoid(),
      removeAt: __t$intToE(),
      [$removeAt]: __t$intToE(),
      removeLast: __t$VoidToE(),
      [$removeLast]: __t$VoidToE(),
      remove: T$.ObjectNTobool(),
      [$remove]: T$.ObjectNTobool(),
      removeWhere: __t$FnTovoid$(),
      [$removeWhere]: __t$FnTovoid$(),
      retainWhere: __t$FnTovoid$(),
      [$retainWhere]: __t$FnTovoid$(),
      setRange: T$.intAndintAndObjectN__Tovoid(),
      [$setRange]: T$.intAndintAndObjectN__Tovoid(),
      removeRange: T$.intAndintTovoid(),
      [$removeRange]: T$.intAndintTovoid(),
      replaceRange: T$.intAndintAndObjectNTovoid$1(),
      [$replaceRange]: T$.intAndintAndObjectNTovoid$1(),
      fillRange: T$.intAndintAndObjectNTovoid(),
      [$fillRange]: T$.intAndintAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(ImmutableListMixin))));
    dart.setGetterSignature(ImmutableListMixin, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfE(),
      [$iterator]: __t$IteratorOfE()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(ImmutableListMixin))));
    dart.setLibraryUri(ImmutableListMixin, I[167]);
    dart.defineExtensionMethods(ImmutableListMixin, [
      'add',
      'addAll',
      'sort',
      'shuffle',
      'insert',
      'insertAll',
      'setAll',
      'removeAt',
      'removeLast',
      'remove',
      'removeWhere',
      'retainWhere',
      'setRange',
      'removeRange',
      'replaceRange',
      'fillRange'
    ]);
    dart.defineExtensionAccessors(ImmutableListMixin, ['iterator']);
    return ImmutableListMixin;
  });
  html$.ImmutableListMixin = html$.ImmutableListMixin$();
  const JavaScriptObject_ListBase$36 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36.new = function() {
    G$.ListBaseOfRectangleOfnum().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36, G$.ListBaseOfRectangleOfnum());
  const JavaScriptObject_ImmutableListMixin$36 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36 {};
  (JavaScriptObject_ImmutableListMixin$36.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36, G$.ImmutableListMixinOfRectangleOfnum());
  html$.DomRectList = class DomRectList extends JavaScriptObject_ImmutableListMixin$36 {
    static ['_#_#tearOff']() {
      return html$.DomRectList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 11392, 29, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 11398, 25, "index");
      T$3.RectangleOfnum()[_as](value);
      if (value == null) dart.nullFailed(I[166], 11398, 42, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 11404, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 11432, 27, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomRectList, ["html|DomRectList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.DomRectList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$5.intToRectangleOfnum(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T$5.intToRectangleNOfnum()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomRectList))));
  dart.setStaticMethodSignature(html$.DomRectList, () => ['__']);
  dart.setGetterSignature(html$.DomRectList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DomRectList))));
  dart.setSetterSignature(html$.DomRectList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DomRectList))));
  dart.setLibraryUri(html$.DomRectList, I[167]);
  dart.registerExtension("ClientRectList", html$.DomRectList);
  dart.registerExtension("DOMRectList", html$.DomRectList);
  html$.DomRectReadOnly = class DomRectReadOnly extends _interceptors.JavaScriptObject {
    [$toString]() {
      return "Rectangle (" + dart.str(this[$left]) + ", " + dart.str(this[$top]) + ") " + dart.str(this[$width]) + " x " + dart.str(this[$height]);
    }
    [$_equals](other) {
      if (other == null) return false;
      return T$3.RectangleOfnum()[_is](other) && this[$left] == other[$left] && this[$top] == other[$top] && this[$width] == other[$width] && this[$height] == other[$height];
    }
    get [$hashCode]() {
      return core.Object.hash(this[$left], this[$top], this[$width], this[$height]);
    }
    [$intersection](other) {
      T$3.RectangleOfnum()[_as](other);
      if (other == null) dart.nullFailed(I[166], 11466, 37, "other");
      let x0 = math.max(T$.num(), this[$left], other[$left]);
      let x1 = math.min(T$.num(), dart.notNull(this[$left]) + dart.notNull(this[$width]), dart.notNull(other[$left]) + dart.notNull(other[$width]));
      if (x0 <= x1) {
        let y0 = math.max(T$.num(), this[$top], other[$top]);
        let y1 = math.min(T$.num(), dart.notNull(this[$top]) + dart.notNull(this[$height]), dart.notNull(other[$top]) + dart.notNull(other[$height]));
        if (y0 <= y1) {
          return new (G.RectangleOfnum()).new(x0, y0, x1 - x0, y1 - y0);
        }
      }
      return null;
    }
    [$intersects](other) {
      if (other == null) dart.nullFailed(I[166], 11484, 34, "other");
      return dart.notNull(this[$left]) <= dart.notNull(other[$left]) + dart.notNull(other[$width]) && dart.notNull(other[$left]) <= dart.notNull(this[$left]) + dart.notNull(this[$width]) && dart.notNull(this[$top]) <= dart.notNull(other[$top]) + dart.notNull(other[$height]) && dart.notNull(other[$top]) <= dart.notNull(this[$top]) + dart.notNull(this[$height]);
    }
    [$boundingBox](other) {
      T$3.RectangleOfnum()[_as](other);
      if (other == null) dart.nullFailed(I[166], 11494, 35, "other");
      let right = math.max(T$.num(), dart.notNull(this[$left]) + dart.notNull(this[$width]), dart.notNull(other[$left]) + dart.notNull(other[$width]));
      let bottom = math.max(T$.num(), dart.notNull(this[$top]) + dart.notNull(this[$height]), dart.notNull(other[$top]) + dart.notNull(other[$height]));
      let left = math.min(T$.num(), this[$left], other[$left]);
      let top = math.min(T$.num(), this[$top], other[$top]);
      return new (G.RectangleOfnum()).new(left, top, right - left, bottom - top);
    }
    [$containsRectangle](another) {
      if (another == null) dart.nullFailed(I[166], 11507, 41, "another");
      return dart.notNull(this[$left]) <= dart.notNull(another[$left]) && dart.notNull(this[$left]) + dart.notNull(this[$width]) >= dart.notNull(another[$left]) + dart.notNull(another[$width]) && dart.notNull(this[$top]) <= dart.notNull(another[$top]) && dart.notNull(this[$top]) + dart.notNull(this[$height]) >= dart.notNull(another[$top]) + dart.notNull(another[$height]);
    }
    [$containsPoint](another) {
      if (another == null) dart.nullFailed(I[166], 11517, 33, "another");
      return dart.notNull(another.x) >= dart.notNull(this[$left]) && dart.notNull(another.x) <= dart.notNull(this[$left]) + dart.notNull(this[$width]) && dart.notNull(another.y) >= dart.notNull(this[$top]) && dart.notNull(another.y) <= dart.notNull(this[$top]) + dart.notNull(this[$height]);
    }
    get [$topLeft]() {
      return new (G.PointOfnum()).new(this[$left], this[$top]);
    }
    get [$topRight]() {
      return new (G.PointOfnum()).new(dart.notNull(this[$left]) + dart.notNull(this[$width]), this[$top]);
    }
    get [$bottomRight]() {
      return new (G.PointOfnum()).new(dart.notNull(this[$left]) + dart.notNull(this[$width]), dart.notNull(this[$top]) + dart.notNull(this[$height]));
    }
    get [$bottomLeft]() {
      return new (G.PointOfnum()).new(this[$left], dart.notNull(this[$top]) + dart.notNull(this[$height]));
    }
    static ['_#_#tearOff']() {
      return html$.DomRectReadOnly.__();
    }
    static ['_#new#tearOff'](x = null, y = null, width = null, height = null) {
      return html$.DomRectReadOnly.new(x, y, width, height);
    }
    static new(x = null, y = null, width = null, height = null) {
      if (height != null) {
        return html$.DomRectReadOnly._create_1(x, y, width, height);
      }
      if (width != null) {
        return html$.DomRectReadOnly._create_2(x, y, width);
      }
      if (y != null) {
        return html$.DomRectReadOnly._create_3(x, y);
      }
      if (x != null) {
        return html$.DomRectReadOnly._create_4(x);
      }
      return html$.DomRectReadOnly._create_5();
    }
    static _create_1(x, y, width, height) {
      return new DOMRectReadOnly(x, y, width, height);
    }
    static _create_2(x, y, width) {
      return new DOMRectReadOnly(x, y, width);
    }
    static _create_3(x, y) {
      return new DOMRectReadOnly(x, y);
    }
    static _create_4(x) {
      return new DOMRectReadOnly(x);
    }
    static _create_5() {
      return new DOMRectReadOnly();
    }
    get [S$0._bottom]() {
      return this.bottom;
    }
    get [$bottom]() {
      return dart.nullCheck(this[S$0._bottom]);
    }
    get [S$0._height$1]() {
      return this.height;
    }
    get [$height]() {
      return dart.nullCheck(this[S$0._height$1]);
    }
    get [S$0._left$2]() {
      return this.left;
    }
    get [$left]() {
      return dart.nullCheck(this[S$0._left$2]);
    }
    get [S$0._right$2]() {
      return this.right;
    }
    get [$right]() {
      return dart.nullCheck(this[S$0._right$2]);
    }
    get [S$0._top]() {
      return this.top;
    }
    get [$top]() {
      return dart.nullCheck(this[S$0._top]);
    }
    get [S$0._width$1]() {
      return this.width;
    }
    get [$width]() {
      return dart.nullCheck(this[S$0._width$1]);
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    static fromRect(other = null) {
      if (other != null) {
        let other_1 = html_common.convertDartToNative_Dictionary(other);
        return dart.global.DOMRectReadOnly.fromRect(other_1);
      }
      return dart.global.DOMRectReadOnly.fromRect();
    }
  };
  dart.addRtiResources(html$.DomRectReadOnly, ["html|DomRectReadOnly", "math|Rectangle", "math|_RectangleBase"]);
  dart.setMethodSignature(html$.DomRectReadOnly, () => dart.global.Object.setPrototypeOf({
    [$intersection]: T$5.ObjectNToRectangleNOfnum(),
    [$intersects]: T$3.RectangleOfnumTobool(),
    [$boundingBox]: T$5.ObjectNToRectangleOfnum(),
    [$containsRectangle]: T$3.RectangleOfnumTobool(),
    [$containsPoint]: T$3.PointOfnumTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomRectReadOnly))));
  dart.setStaticMethodSignature(html$.DomRectReadOnly, () => ['__', 'new', '_create_1', '_create_2', '_create_3', '_create_4', '_create_5', 'fromRect', '_fromRect_1', '_fromRect_2']);
  dart.setGetterSignature(html$.DomRectReadOnly, () => dart.global.Object.setPrototypeOf({
    [$topLeft]: T$3.PointOfnum(),
    [$topRight]: T$3.PointOfnum(),
    [$bottomRight]: T$3.PointOfnum(),
    [$bottomLeft]: T$3.PointOfnum(),
    [S$0._bottom]: T$3.numN(),
    [$bottom]: T$.num(),
    [S$0._height$1]: T$3.numN(),
    [$height]: T$.num(),
    [S$0._left$2]: T$3.numN(),
    [$left]: T$.num(),
    [S$0._right$2]: T$3.numN(),
    [$right]: T$.num(),
    [S$0._top]: T$3.numN(),
    [$top]: T$.num(),
    [S$0._width$1]: T$3.numN(),
    [$width]: T$.num(),
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DomRectReadOnly))));
  dart.setLibraryUri(html$.DomRectReadOnly, I[167]);
  dart.registerExtension("DOMRectReadOnly", html$.DomRectReadOnly);
  const JavaScriptObject_ListBase$36$ = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$.new = function() {
    G$.ListBaseOfString().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$, G$.ListBaseOfString());
  const JavaScriptObject_ImmutableListMixin$36$ = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$ {};
  (JavaScriptObject_ImmutableListMixin$36$.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$, G$.ImmutableListMixinOfString());
  html$.DomStringList = class DomStringList extends JavaScriptObject_ImmutableListMixin$36$ {
    static ['_#_#tearOff']() {
      return html$.DomStringList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 11642, 26, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 11648, 25, "index");
      T$.String()[_as](value);
      if (value == null) dart.nullFailed(I[166], 11648, 39, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 11654, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 11682, 24, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomStringList, ["html|DomStringList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.DomStringList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$.intToString(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T$0.intToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomStringList))));
  dart.setStaticMethodSignature(html$.DomStringList, () => ['__']);
  dart.setGetterSignature(html$.DomStringList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DomStringList))));
  dart.setSetterSignature(html$.DomStringList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DomStringList))));
  dart.setLibraryUri(html$.DomStringList, I[167]);
  dart.registerExtension("DOMStringList", html$.DomStringList);
  html$.DomStringMap = class DomStringMap extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DomStringMap.__();
    }
    [S$1.__delete__](...args) {
      return this.__delete__.apply(this, args);
    }
    [S$.__setter__](...args) {
      return this.__setter__.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomStringMap, ["html|DomStringMap"]);
  dart.setMethodSignature(html$.DomStringMap, () => dart.global.Object.setPrototypeOf({
    [S$1.__delete__]: T$.StringTovoid(),
    [S$.__setter__]: T$2.StringAndStringTovoid(),
    [S$.$item]: T$.StringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomStringMap))));
  dart.setStaticMethodSignature(html$.DomStringMap, () => ['__']);
  dart.setLibraryUri(html$.DomStringMap, I[167]);
  dart.registerExtension("DOMStringMap", html$.DomStringMap);
  html$.DomTokenList = class DomTokenList extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.DomTokenList.__();
    }
    get [$length]() {
      return this.length;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
    [$add](...args) {
      return this.add.apply(this, args);
    }
    [$contains](...args) {
      return this.contains.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [$remove](...args) {
      return this.remove.apply(this, args);
    }
    [S$1.$replace](...args) {
      return this.replace.apply(this, args);
    }
    [S$1.$supports](...args) {
      return this.supports.apply(this, args);
    }
    [S$1.$toggle](...args) {
      return this.toggle.apply(this, args);
    }
  };
  dart.addRtiResources(html$.DomTokenList, ["html|DomTokenList"]);
  dart.setMethodSignature(html$.DomTokenList, () => dart.global.Object.setPrototypeOf({
    [$add]: T$.StringTovoid(),
    [$contains]: T$.StringTobool(),
    [S$.$item]: T$0.intToStringN(),
    [$remove]: T$.StringTovoid(),
    [S$1.$replace]: T$2.StringAndStringTovoid(),
    [S$1.$supports]: T$.StringTobool(),
    [S$1.$toggle]: T$5.StringAndboolNTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.DomTokenList))));
  dart.setStaticMethodSignature(html$.DomTokenList, () => ['__']);
  dart.setGetterSignature(html$.DomTokenList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.int(),
    [S.$value]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.DomTokenList))));
  dart.setSetterSignature(html$.DomTokenList, () => dart.global.Object.setPrototypeOf({[S.$value]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.DomTokenList))));
  dart.setLibraryUri(html$.DomTokenList, I[167]);
  dart.registerExtension("DOMTokenList", html$.DomTokenList);
  html$._ChildrenElementList = class _ChildrenElementList extends G$.ListBaseOfElement() {
    static ['_#_wrap#tearOff'](element) {
      if (element == null) dart.nullFailed(I[166], 11745, 38, "element");
      return new html$._ChildrenElementList._wrap(element);
    }
    contains(element) {
      return this[S$1._childElements][$contains](element);
    }
    get isEmpty() {
      return this[S$1._element][S._firstElementChild] == null;
    }
    get length() {
      return this[S$1._childElements][$length];
    }
    _get(index) {
      if (index == null) dart.nullFailed(I[166], 11759, 27, "index");
      return T$3.Element()[_as](this[S$1._childElements][$_get](index));
    }
    _set(index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 11763, 25, "index");
      T$3.Element()[_as](value);
      if (value == null) dart.nullFailed(I[166], 11763, 40, "value");
      this[S$1._element][S$._replaceChild](value, this[S$1._childElements][$_get](index));
      return value$;
    }
    set length(newLength) {
      if (newLength == null) dart.nullFailed(I[166], 11767, 18, "newLength");
      dart.throw(new core.UnsupportedError.new("Cannot resize element lists"));
    }
    add(value) {
      T$3.Element()[_as](value);
      if (value == null) dart.nullFailed(I[166], 11772, 23, "value");
      this[S$1._element][S.$append](value);
      return value;
    }
    get iterator() {
      return this[$toList]()[$iterator];
    }
    addAll(iterable) {
      T$4.IterableOfElement()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 11779, 33, "iterable");
      html$._ChildrenElementList._addAll(this[S$1._element], iterable);
    }
    static _addAll(_element, iterable) {
      if (_element == null) dart.nullFailed(I[166], 11783, 31, "_element");
      if (iterable == null) dart.nullFailed(I[166], 11783, 59, "iterable");
      if (T$3._ChildNodeListLazy()[_is](iterable)) {
        iterable = G.ListOfElement().from(iterable);
      }
      for (let element of iterable) {
        _element[S.$append](element);
      }
    }
    sort(compare = null) {
      dart.throw(new core.UnsupportedError.new("Cannot sort element lists"));
    }
    shuffle(random = null) {
      dart.throw(new core.UnsupportedError.new("Cannot shuffle element lists"));
    }
    removeWhere(test) {
      if (test == null) dart.nullFailed(I[166], 11801, 25, "test");
      this[S$1._filter$2](test, false);
    }
    retainWhere(test) {
      if (test == null) dart.nullFailed(I[166], 11805, 25, "test");
      this[S$1._filter$2](test, true);
    }
    [S$1._filter$2](test, retainMatching) {
      if (test == null) dart.nullFailed(I[166], 11809, 21, "test");
      if (retainMatching == null) dart.nullFailed(I[166], 11809, 49, "retainMatching");
      let removed = null;
      if (dart.test(retainMatching)) {
        removed = this[S$1._element][S.$children][$where](dart.fn(e => {
          if (e == null) dart.nullFailed(I[166], 11812, 42, "e");
          return !dart.test(test(e));
        }, T$4.ElementTobool()));
      } else {
        removed = this[S$1._element][S.$children][$where](test);
      }
      for (let e of removed)
        e[$remove]();
    }
    fillRange(start, end, fillValue = null) {
      if (start == null) dart.nullFailed(I[166], 11819, 22, "start");
      if (end == null) dart.nullFailed(I[166], 11819, 33, "end");
      T$3.ElementN()[_as](fillValue);
      dart.throw(new core.UnimplementedError.new());
    }
    replaceRange(start, end, iterable) {
      if (start == null) dart.nullFailed(I[166], 11823, 25, "start");
      if (end == null) dart.nullFailed(I[166], 11823, 36, "end");
      T$4.IterableOfElement()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 11823, 59, "iterable");
      dart.throw(new core.UnimplementedError.new());
    }
    removeRange(start, end) {
      if (start == null) dart.nullFailed(I[166], 11827, 24, "start");
      if (end == null) dart.nullFailed(I[166], 11827, 35, "end");
      dart.throw(new core.UnimplementedError.new());
    }
    setRange(start, end, iterable, skipCount = 0) {
      if (start == null) dart.nullFailed(I[166], 11831, 21, "start");
      if (end == null) dart.nullFailed(I[166], 11831, 32, "end");
      T$4.IterableOfElement()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 11831, 55, "iterable");
      if (skipCount == null) dart.nullFailed(I[166], 11832, 12, "skipCount");
      dart.throw(new core.UnimplementedError.new());
    }
    remove(object) {
      return html$._ChildrenElementList._remove(this[S$1._element], object);
    }
    static _remove(_element, object) {
      if (_element == null) dart.nullFailed(I[166], 11840, 31, "_element");
      if (T$3.Element()[_is](object)) {
        let element = object;
        if (element.parentNode == _element) {
          _element[S$._removeChild](element);
          return true;
        }
      }
      return false;
    }
    insert(index, element) {
      if (index == null) dart.nullFailed(I[166], 11851, 19, "index");
      T$3.Element()[_as](element);
      if (element == null) dart.nullFailed(I[166], 11851, 34, "element");
      if (dart.notNull(index) < 0 || dart.notNull(index) > dart.notNull(this.length)) {
        dart.throw(new core.RangeError.range(index, 0, this.length));
      }
      if (index == this.length) {
        this[S$1._element][S.$append](element);
      } else {
        this[S$1._element].insertBefore(element, this._get(index));
      }
    }
    insertAll(index, iterable) {
      if (index == null) dart.nullFailed(I[166], 11862, 22, "index");
      T$4.IterableOfElement()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 11862, 47, "iterable");
      dart.throw(new core.UnimplementedError.new());
    }
    setAll(index, iterable) {
      if (index == null) dart.nullFailed(I[166], 11866, 19, "index");
      T$4.IterableOfElement()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 11866, 44, "iterable");
      dart.throw(new core.UnimplementedError.new());
    }
    clear() {
      this[S$1._element][S$._clearChildren]();
    }
    removeAt(index) {
      if (index == null) dart.nullFailed(I[166], 11874, 24, "index");
      let result = this._get(index);
      if (result != null) {
        this[S$1._element][S$._removeChild](result);
      }
      return result;
    }
    removeLast() {
      let result = this.last;
      this[S$1._element][S$._removeChild](result);
      return result;
    }
    get first() {
      return html$._ChildrenElementList._first(this[S$1._element]);
    }
    set first(value) {
      super.first = value;
    }
    static _first(_element) {
      if (_element == null) dart.nullFailed(I[166], 11892, 33, "_element");
      let result = _element[S._firstElementChild];
      if (result == null) dart.throw(new core.StateError.new("No elements"));
      return result;
    }
    get last() {
      let result = this[S$1._element][S._lastElementChild];
      if (result == null) dart.throw(new core.StateError.new("No elements"));
      return result;
    }
    set last(value) {
      super.last = value;
    }
    get single() {
      if (dart.notNull(this.length) > 1) dart.throw(new core.StateError.new("More than one element"));
      return this.first;
    }
    get rawList() {
      return this[S$1._childElements];
    }
  };
  (html$._ChildrenElementList._wrap = function(element) {
    if (element == null) dart.nullFailed(I[166], 11745, 38, "element");
    this[S$1._childElements] = T$5.HtmlCollection()[_as](element[S._children]);
    this[S$1._element] = element;
    this.$ti = this.$ti || T$5._ChildrenElementList();
    dart.global.Object.getPrototypeOf(html$._ChildrenElementList).new.call(this);
    ;
  }).prototype = html$._ChildrenElementList.prototype;
  dart.addRtiResources(html$._ChildrenElementList, ["html|_ChildrenElementList", "html_common|NodeListWrapper"]);
  dart.setMethodSignature(html$._ChildrenElementList, () => dart.global.Object.setPrototypeOf({
    _get: T$5.intToElement(),
    [$_get]: T$5.intToElement(),
    _set: T$.intAndObjectNTovoid(),
    [$_set]: T$.intAndObjectNTovoid(),
    add: T$5.ObjectNToElement(),
    [$add]: T$5.ObjectNToElement(),
    [S$1._filter$2]: T$5.FnAndboolTovoid$4()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._ChildrenElementList))));
  dart.setStaticMethodSignature(html$._ChildrenElementList, () => ['_addAll', '_remove', '_first']);
  dart.setGetterSignature(html$._ChildrenElementList, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    [$length]: T$.int(),
    rawList: T$3.ListOfNode$1()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._ChildrenElementList))));
  dart.setSetterSignature(html$._ChildrenElementList, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$._ChildrenElementList))));
  dart.setLibraryUri(html$._ChildrenElementList, I[167]);
  dart.setFieldSignature(html$._ChildrenElementList, () => dart.global.Object.setPrototypeOf({
    [S$1._element]: {type: T$3.Element(), isConst: false, isFinal: true, libraryUri: I[167]},
    [S$1._childElements]: {type: T$5.HtmlCollection(), isConst: false, isFinal: true, libraryUri: I[167]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._ChildrenElementList))));
  dart.defineExtensionMethods(html$._ChildrenElementList, [
    'contains',
    '_get',
    '_set',
    'add',
    'addAll',
    'sort',
    'shuffle',
    'removeWhere',
    'retainWhere',
    'fillRange',
    'replaceRange',
    'removeRange',
    'setRange',
    'remove',
    'insert',
    'insertAll',
    'setAll',
    'clear',
    'removeAt',
    'removeLast'
  ]);
  dart.defineExtensionAccessors(html$._ChildrenElementList, [
    'isEmpty',
    'length',
    'iterator',
    'first',
    'last',
    'single'
  ]);
  html$.ElementList$ = dart.generic(T => {
    var __t$ElementListOfT = () => (__t$ElementListOfT = dart.constFn(T[_eval]("html|ElementList<0>")))();
    var __t$ListBaseOfT = () => (__t$ListBaseOfT = dart.constFn(collection.ListBase$(T)))();
    class ElementList extends __t$ListBaseOfT() {}
    (ElementList.new = function() {
      this.$ti = this.$ti || __t$ElementListOfT();
      dart.global.Object.getPrototypeOf(ElementList).new.call(this);
      ;
    }).prototype = ElementList.prototype;
    dart.addRtiResources(ElementList, ["html|ElementList"]);
    dart.setLibraryUri(ElementList, I[167]);
    return ElementList;
  });
  html$.ElementList = html$.ElementList$();
  html$._FrozenElementList$ = dart.generic(E => {
    var __t$_FrozenElementListOfE = () => (__t$_FrozenElementListOfE = dart.constFn(E[_eval]("html|_FrozenElementList<0>")))();
    var __t$ETovoid = () => (__t$ETovoid = dart.constFn(E[_eval]("~(0)")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$ListBaseOfE = () => (__t$ListBaseOfE = dart.constFn(collection.ListBase$(E)))();
    class _FrozenElementList extends __t$ListBaseOfE() {
      static ['_#_wrap#tearOff'](E, _nodeList) {
        if (_nodeList == null) dart.nullFailed(I[166], 12300, 33, "_nodeList");
        return new (html$._FrozenElementList$(E))._wrap(_nodeList);
      }
      get length() {
        return this[S$1._nodeList][$length];
      }
      _get(index) {
        if (index == null) dart.nullFailed(I[166], 12307, 21, "index");
        return E[_as](this[S$1._nodeList][$_get](index));
      }
      _set(index, value$) {
        let value = value$;
        if (index == null) dart.nullFailed(I[166], 12309, 25, "index");
        E[_as](value);
        if (value == null) dart.nullFailed(I[166], 12309, 34, "value");
        dart.throw(new core.UnsupportedError.new("Cannot modify list"));
        return value$;
      }
      set length(newLength) {
        if (newLength == null) dart.nullFailed(I[166], 12313, 18, "newLength");
        dart.throw(new core.UnsupportedError.new("Cannot modify list"));
      }
      sort(compare = null) {
        dart.throw(new core.UnsupportedError.new("Cannot sort list"));
      }
      shuffle(random = null) {
        dart.throw(new core.UnsupportedError.new("Cannot shuffle list"));
      }
      get first() {
        return E[_as](this[S$1._nodeList][$first]);
      }
      set first(value) {
        super.first = value;
      }
      get last() {
        return E[_as](this[S$1._nodeList][$last]);
      }
      set last(value) {
        super.last = value;
      }
      get single() {
        return E[_as](this[S$1._nodeList][$single]);
      }
      get classes() {
        return html$._MultiElementCssClassSet.new(this);
      }
      get style() {
        return new html$._CssStyleDeclarationSet.new(this);
      }
      set classes(value) {
        if (value == null) dart.nullFailed(I[166], 12335, 32, "value");
        this[$forEach](dart.fn(e => {
          if (e == null) dart.nullFailed(I[166], 12342, 14, "e");
          return e[S.$classes] = value;
        }, __t$ETovoid()));
      }
      get contentEdge() {
        return new html$._ContentCssListRect.new(this);
      }
      get paddingEdge() {
        return this.first[S.$paddingEdge];
      }
      get borderEdge() {
        return this.first[S.$borderEdge];
      }
      get marginEdge() {
        return this.first[S.$marginEdge];
      }
      get rawList() {
        return this[S$1._nodeList];
      }
      get onAbort() {
        return html$.Element.abortEvent[S$1._forElementList](this);
      }
      get onBeforeCopy() {
        return html$.Element.beforeCopyEvent[S$1._forElementList](this);
      }
      get onBeforeCut() {
        return html$.Element.beforeCutEvent[S$1._forElementList](this);
      }
      get onBeforePaste() {
        return html$.Element.beforePasteEvent[S$1._forElementList](this);
      }
      get onBlur() {
        return html$.Element.blurEvent[S$1._forElementList](this);
      }
      get onCanPlay() {
        return html$.Element.canPlayEvent[S$1._forElementList](this);
      }
      get onCanPlayThrough() {
        return html$.Element.canPlayThroughEvent[S$1._forElementList](this);
      }
      get onChange() {
        return html$.Element.changeEvent[S$1._forElementList](this);
      }
      get onClick() {
        return html$.Element.clickEvent[S$1._forElementList](this);
      }
      get onContextMenu() {
        return html$.Element.contextMenuEvent[S$1._forElementList](this);
      }
      get onCopy() {
        return html$.Element.copyEvent[S$1._forElementList](this);
      }
      get onCut() {
        return html$.Element.cutEvent[S$1._forElementList](this);
      }
      get onDoubleClick() {
        return html$.Element.doubleClickEvent[S$1._forElementList](this);
      }
      get onDrag() {
        return html$.Element.dragEvent[S$1._forElementList](this);
      }
      get onDragEnd() {
        return html$.Element.dragEndEvent[S$1._forElementList](this);
      }
      get onDragEnter() {
        return html$.Element.dragEnterEvent[S$1._forElementList](this);
      }
      get onDragLeave() {
        return html$.Element.dragLeaveEvent[S$1._forElementList](this);
      }
      get onDragOver() {
        return html$.Element.dragOverEvent[S$1._forElementList](this);
      }
      get onDragStart() {
        return html$.Element.dragStartEvent[S$1._forElementList](this);
      }
      get onDrop() {
        return html$.Element.dropEvent[S$1._forElementList](this);
      }
      get onDurationChange() {
        return html$.Element.durationChangeEvent[S$1._forElementList](this);
      }
      get onEmptied() {
        return html$.Element.emptiedEvent[S$1._forElementList](this);
      }
      get onEnded() {
        return html$.Element.endedEvent[S$1._forElementList](this);
      }
      get onError() {
        return html$.Element.errorEvent[S$1._forElementList](this);
      }
      get onFocus() {
        return html$.Element.focusEvent[S$1._forElementList](this);
      }
      get onInput() {
        return html$.Element.inputEvent[S$1._forElementList](this);
      }
      get onInvalid() {
        return html$.Element.invalidEvent[S$1._forElementList](this);
      }
      get onKeyDown() {
        return html$.Element.keyDownEvent[S$1._forElementList](this);
      }
      get onKeyPress() {
        return html$.Element.keyPressEvent[S$1._forElementList](this);
      }
      get onKeyUp() {
        return html$.Element.keyUpEvent[S$1._forElementList](this);
      }
      get onLoad() {
        return html$.Element.loadEvent[S$1._forElementList](this);
      }
      get onLoadedData() {
        return html$.Element.loadedDataEvent[S$1._forElementList](this);
      }
      get onLoadedMetadata() {
        return html$.Element.loadedMetadataEvent[S$1._forElementList](this);
      }
      get onMouseDown() {
        return html$.Element.mouseDownEvent[S$1._forElementList](this);
      }
      get onMouseEnter() {
        return html$.Element.mouseEnterEvent[S$1._forElementList](this);
      }
      get onMouseLeave() {
        return html$.Element.mouseLeaveEvent[S$1._forElementList](this);
      }
      get onMouseMove() {
        return html$.Element.mouseMoveEvent[S$1._forElementList](this);
      }
      get onMouseOut() {
        return html$.Element.mouseOutEvent[S$1._forElementList](this);
      }
      get onMouseOver() {
        return html$.Element.mouseOverEvent[S$1._forElementList](this);
      }
      get onMouseUp() {
        return html$.Element.mouseUpEvent[S$1._forElementList](this);
      }
      get onMouseWheel() {
        return html$.Element.mouseWheelEvent[S$1._forElementList](this);
      }
      get onPaste() {
        return html$.Element.pasteEvent[S$1._forElementList](this);
      }
      get onPause() {
        return html$.Element.pauseEvent[S$1._forElementList](this);
      }
      get onPlay() {
        return html$.Element.playEvent[S$1._forElementList](this);
      }
      get onPlaying() {
        return html$.Element.playingEvent[S$1._forElementList](this);
      }
      get onRateChange() {
        return html$.Element.rateChangeEvent[S$1._forElementList](this);
      }
      get onReset() {
        return html$.Element.resetEvent[S$1._forElementList](this);
      }
      get onResize() {
        return html$.Element.resizeEvent[S$1._forElementList](this);
      }
      get onScroll() {
        return html$.Element.scrollEvent[S$1._forElementList](this);
      }
      get onSearch() {
        return html$.Element.searchEvent[S$1._forElementList](this);
      }
      get onSeeked() {
        return html$.Element.seekedEvent[S$1._forElementList](this);
      }
      get onSeeking() {
        return html$.Element.seekingEvent[S$1._forElementList](this);
      }
      get onSelect() {
        return html$.Element.selectEvent[S$1._forElementList](this);
      }
      get onSelectStart() {
        return html$.Element.selectStartEvent[S$1._forElementList](this);
      }
      get onStalled() {
        return html$.Element.stalledEvent[S$1._forElementList](this);
      }
      get onSubmit() {
        return html$.Element.submitEvent[S$1._forElementList](this);
      }
      get onSuspend() {
        return html$.Element.suspendEvent[S$1._forElementList](this);
      }
      get onTimeUpdate() {
        return html$.Element.timeUpdateEvent[S$1._forElementList](this);
      }
      get onTouchCancel() {
        return html$.Element.touchCancelEvent[S$1._forElementList](this);
      }
      get onTouchEnd() {
        return html$.Element.touchEndEvent[S$1._forElementList](this);
      }
      get onTouchEnter() {
        return html$.Element.touchEnterEvent[S$1._forElementList](this);
      }
      get onTouchLeave() {
        return html$.Element.touchLeaveEvent[S$1._forElementList](this);
      }
      get onTouchMove() {
        return html$.Element.touchMoveEvent[S$1._forElementList](this);
      }
      get onTouchStart() {
        return html$.Element.touchStartEvent[S$1._forElementList](this);
      }
      get onTransitionEnd() {
        return html$.Element.transitionEndEvent[S$1._forElementList](this);
      }
      get onVolumeChange() {
        return html$.Element.volumeChangeEvent[S$1._forElementList](this);
      }
      get onWaiting() {
        return html$.Element.waitingEvent[S$1._forElementList](this);
      }
      get onFullscreenChange() {
        return html$.Element.fullscreenChangeEvent[S$1._forElementList](this);
      }
      get onFullscreenError() {
        return html$.Element.fullscreenErrorEvent[S$1._forElementList](this);
      }
      get onWheel() {
        return html$.Element.wheelEvent[S$1._forElementList](this);
      }
    }
    (_FrozenElementList._wrap = function(_nodeList) {
      if (_nodeList == null) dart.nullFailed(I[166], 12300, 33, "_nodeList");
      this[S$1._nodeList] = _nodeList;
      this.$ti = this.$ti || __t$_FrozenElementListOfE();
      dart.global.Object.getPrototypeOf(_FrozenElementList).new.call(this);
      if (!dart.test(this[S$1._nodeList][$every](dart.fn(element => {
        if (element == null) dart.nullFailed(I[166], 12301, 34, "element");
        return E[_is](element);
      }, T$3.NodeTobool())))) dart.assertFailed("Query expects only HTML elements of type " + dart.str(dart_rti.createRuntimeType(E)) + " but found " + dart.str(this[S$1._nodeList][$firstWhere](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 12302, 93, "e");
        return !E[_is](e);
      }, T$3.NodeTobool()))), I[166], 12301, 12, "this._nodeList.every((element) => element is E)");
    }).prototype = _FrozenElementList.prototype;
    dart.addRtiResources(_FrozenElementList, ["html|_FrozenElementList", "html|ElementList", "html_common|NodeListWrapper", "collection|ListBase", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setMethodSignature(_FrozenElementList, () => dart.global.Object.setPrototypeOf({
      _get: __t$intToE(),
      [$_get]: __t$intToE(),
      _set: T$.intAndObjectNTovoid(),
      [$_set]: T$.intAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_FrozenElementList))));
    dart.setGetterSignature(_FrozenElementList, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int(),
      classes: T$3.CssClassSet(),
      style: T$5.CssStyleDeclarationBase(),
      contentEdge: T$3.CssRect(),
      paddingEdge: T$3.CssRect(),
      borderEdge: T$3.CssRect(),
      marginEdge: T$3.CssRect(),
      rawList: T$3.ListOfNode$1(),
      onAbort: T$4.ElementStreamOfEvent(),
      onBeforeCopy: T$4.ElementStreamOfEvent(),
      onBeforeCut: T$4.ElementStreamOfEvent(),
      onBeforePaste: T$4.ElementStreamOfEvent(),
      onBlur: T$4.ElementStreamOfEvent(),
      onCanPlay: T$4.ElementStreamOfEvent(),
      onCanPlayThrough: T$4.ElementStreamOfEvent(),
      onChange: T$4.ElementStreamOfEvent(),
      onClick: T$4.ElementStreamOfMouseEvent(),
      onContextMenu: T$4.ElementStreamOfMouseEvent(),
      onCopy: T$4.ElementStreamOfClipboardEvent(),
      onCut: T$4.ElementStreamOfClipboardEvent(),
      onDoubleClick: T$4.ElementStreamOfEvent(),
      onDrag: T$4.ElementStreamOfMouseEvent(),
      onDragEnd: T$4.ElementStreamOfMouseEvent(),
      onDragEnter: T$4.ElementStreamOfMouseEvent(),
      onDragLeave: T$4.ElementStreamOfMouseEvent(),
      onDragOver: T$4.ElementStreamOfMouseEvent(),
      onDragStart: T$4.ElementStreamOfMouseEvent(),
      onDrop: T$4.ElementStreamOfMouseEvent(),
      onDurationChange: T$4.ElementStreamOfEvent(),
      onEmptied: T$4.ElementStreamOfEvent(),
      onEnded: T$4.ElementStreamOfEvent(),
      onError: T$4.ElementStreamOfEvent(),
      onFocus: T$4.ElementStreamOfEvent(),
      onInput: T$4.ElementStreamOfEvent(),
      onInvalid: T$4.ElementStreamOfEvent(),
      onKeyDown: T$4.ElementStreamOfKeyboardEvent(),
      onKeyPress: T$4.ElementStreamOfKeyboardEvent(),
      onKeyUp: T$4.ElementStreamOfKeyboardEvent(),
      onLoad: T$4.ElementStreamOfEvent(),
      onLoadedData: T$4.ElementStreamOfEvent(),
      onLoadedMetadata: T$4.ElementStreamOfEvent(),
      onMouseDown: T$4.ElementStreamOfMouseEvent(),
      onMouseEnter: T$4.ElementStreamOfMouseEvent(),
      onMouseLeave: T$4.ElementStreamOfMouseEvent(),
      onMouseMove: T$4.ElementStreamOfMouseEvent(),
      onMouseOut: T$4.ElementStreamOfMouseEvent(),
      onMouseOver: T$4.ElementStreamOfMouseEvent(),
      onMouseUp: T$4.ElementStreamOfMouseEvent(),
      onMouseWheel: T$4.ElementStreamOfWheelEvent(),
      onPaste: T$4.ElementStreamOfClipboardEvent(),
      onPause: T$4.ElementStreamOfEvent(),
      onPlay: T$4.ElementStreamOfEvent(),
      onPlaying: T$4.ElementStreamOfEvent(),
      onRateChange: T$4.ElementStreamOfEvent(),
      onReset: T$4.ElementStreamOfEvent(),
      onResize: T$4.ElementStreamOfEvent(),
      onScroll: T$4.ElementStreamOfEvent(),
      onSearch: T$4.ElementStreamOfEvent(),
      onSeeked: T$4.ElementStreamOfEvent(),
      onSeeking: T$4.ElementStreamOfEvent(),
      onSelect: T$4.ElementStreamOfEvent(),
      onSelectStart: T$4.ElementStreamOfEvent(),
      onStalled: T$4.ElementStreamOfEvent(),
      onSubmit: T$4.ElementStreamOfEvent(),
      onSuspend: T$4.ElementStreamOfEvent(),
      onTimeUpdate: T$4.ElementStreamOfEvent(),
      onTouchCancel: T$4.ElementStreamOfTouchEvent(),
      onTouchEnd: T$4.ElementStreamOfTouchEvent(),
      onTouchEnter: T$4.ElementStreamOfTouchEvent(),
      onTouchLeave: T$4.ElementStreamOfTouchEvent(),
      onTouchMove: T$4.ElementStreamOfTouchEvent(),
      onTouchStart: T$4.ElementStreamOfTouchEvent(),
      onTransitionEnd: T$4.ElementStreamOfTransitionEvent(),
      onVolumeChange: T$4.ElementStreamOfEvent(),
      onWaiting: T$4.ElementStreamOfEvent(),
      onFullscreenChange: T$4.ElementStreamOfEvent(),
      onFullscreenError: T$4.ElementStreamOfEvent(),
      onWheel: T$4.ElementStreamOfWheelEvent()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_FrozenElementList))));
    dart.setSetterSignature(_FrozenElementList, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int(),
      classes: T$0.IterableOfString()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(_FrozenElementList))));
    dart.setLibraryUri(_FrozenElementList, I[167]);
    dart.setFieldSignature(_FrozenElementList, () => dart.global.Object.setPrototypeOf({[S$1._nodeList]: {type: T$3.ListOfNode$1(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_FrozenElementList))));
    dart.defineExtensionMethods(_FrozenElementList, ['_get', '_set', 'sort', 'shuffle']);
    dart.defineExtensionAccessors(_FrozenElementList, ['length', 'first', 'last', 'single']);
    return _FrozenElementList;
  });
  html$._FrozenElementList = html$._FrozenElementList$();
  html$._ElementFactoryProvider = class _ElementFactoryProvider extends core.Object {
    static createElement_tag(tag, typeExtension) {
      if (tag == null) dart.nullFailed(I[166], 15272, 43, "tag");
      if (typeExtension != null) {
        return document.createElement(tag, typeExtension);
      }
      return document.createElement(tag);
    }
    static ['_#new#tearOff']() {
      return new html$._ElementFactoryProvider.new();
    }
  };
  (html$._ElementFactoryProvider.new = function() {
    ;
  }).prototype = html$._ElementFactoryProvider.prototype;
  dart.addRtiResources(html$._ElementFactoryProvider, ["html|_ElementFactoryProvider"]);
  dart.setStaticMethodSignature(html$._ElementFactoryProvider, () => ['createElement_tag']);
  dart.setLibraryUri(html$._ElementFactoryProvider, I[167]);
  html$.ScrollAlignment = class ScrollAlignment extends core.Object {
    get [S$1._value$6]() {
      return this[S$1._value$5];
    }
    set [S$1._value$6](value) {
      super[S$1._value$6] = value;
    }
    static ['_#_internal#tearOff'](_value) {
      return new html$.ScrollAlignment._internal(_value);
    }
    toString() {
      return "ScrollAlignment." + dart.str(this[S$1._value$6]);
    }
  };
  (html$.ScrollAlignment._internal = function(_value) {
    this[S$1._value$5] = _value;
    ;
  }).prototype = html$.ScrollAlignment.prototype;
  dart.addRtiResources(html$.ScrollAlignment, ["html|ScrollAlignment"]);
  dart.setLibraryUri(html$.ScrollAlignment, I[167]);
  dart.setFieldSignature(html$.ScrollAlignment, () => dart.global.Object.setPrototypeOf({[S$1._value$6]: {type: T$.dynamic(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(html$.ScrollAlignment))));
  dart.setStaticFieldSignature(html$.ScrollAlignment, () => ['TOP', 'CENTER', 'BOTTOM']);
  dart.defineExtensionMethods(html$.ScrollAlignment, ['toString']);
  dart.defineLazy(html$.ScrollAlignment, {
    /*html$.ScrollAlignment.TOP*/get TOP() {
      return C[378] || CT.C378;
    },
    /*html$.ScrollAlignment.CENTER*/get CENTER() {
      return C[379] || CT.C379;
    },
    /*html$.ScrollAlignment.BOTTOM*/get BOTTOM() {
      return C[380] || CT.C380;
    }
  }, false);
  html$.EmbedElement = class EmbedElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.EmbedElement.__();
    }
    static new() {
      return T$5.EmbedElement()[_as](html$.document[S.$createElement]("embed"));
    }
    static ['_#new#tearOff']() {
      return html$.EmbedElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.EmbedElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("embed");
    }
    get [$height]() {
      return this.height;
    }
    set [$height](value) {
      this.height = value;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S$.$src]() {
      return this.src;
    }
    set [S$.$src](value) {
      this.src = value;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
    [S$.__getter__](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$.__setter__](...args) {
      return this.__setter__.apply(this, args);
    }
  };
  (html$.EmbedElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.EmbedElement).created.call(this);
    ;
  }).prototype = html$.EmbedElement.prototype;
  dart.addRtiResources(html$.EmbedElement, ["html|EmbedElement"]);
  dart.setMethodSignature(html$.EmbedElement, () => dart.global.Object.setPrototypeOf({
    [S$.__getter__]: T$5.StringToNode(),
    [S$.__setter__]: T$3.StringAndNodeTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.EmbedElement))));
  dart.setStaticMethodSignature(html$.EmbedElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.EmbedElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.String(),
    [$name]: T$.StringN(),
    [S$.$src]: T$.String(),
    [S.$type]: T$.String(),
    [$width]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.EmbedElement))));
  dart.setSetterSignature(html$.EmbedElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.String(),
    [$name]: T$.StringN(),
    [S$.$src]: T$.String(),
    [S.$type]: T$.String(),
    [$width]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.EmbedElement))));
  dart.setStaticGetterSignature(html$.EmbedElement, () => ['supported']);
  dart.setLibraryUri(html$.EmbedElement, I[167]);
  dart.registerExtension("HTMLEmbedElement", html$.EmbedElement);
  html$.ErrorEvent = class ErrorEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.ErrorEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 15493, 29, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.ErrorEvent._create_1(type, eventInitDict_1);
      }
      return html$.ErrorEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 15493, 29, "type");
      return html$.ErrorEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new ErrorEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new ErrorEvent(type);
    }
    get [S$1.$colno]() {
      return this.colno;
    }
    get [S.$error]() {
      return this.error;
    }
    get [S$1.$filename]() {
      return this.filename;
    }
    get [S$1.$lineno]() {
      return this.lineno;
    }
    get [$message]() {
      return this.message;
    }
  };
  dart.addRtiResources(html$.ErrorEvent, ["html|ErrorEvent"]);
  dart.setStaticMethodSignature(html$.ErrorEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.ErrorEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$colno]: T$.intN(),
    [S.$error]: T$.ObjectN(),
    [S$1.$filename]: T$.StringN(),
    [S$1.$lineno]: T$.intN(),
    [$message]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ErrorEvent))));
  dart.setLibraryUri(html$.ErrorEvent, I[167]);
  dart.registerExtension("ErrorEvent", html$.ErrorEvent);
  html$.EventSource = class EventSource$ extends html$.EventTarget {
    static new(url, opts) {
      if (url == null) dart.nullFailed(I[166], 15665, 30, "url");
      let withCredentials = opts && 'withCredentials' in opts ? opts.withCredentials : false;
      let parsedOptions = new (G.IdentityMapOfString$dynamic()).from(["withCredentials", withCredentials]);
      return html$.EventSource._factoryEventSource(url, parsedOptions);
    }
    static ['_#new#tearOff'](url, opts) {
      if (url == null) dart.nullFailed(I[166], 15665, 30, "url");
      let withCredentials = opts && 'withCredentials' in opts ? opts.withCredentials : false;
      return html$.EventSource.new(url, {withCredentials: withCredentials});
    }
    static ['_#_#tearOff']() {
      return html$.EventSource.__();
    }
    static _factoryEventSource(url, eventSourceInitDict = null) {
      if (url == null) dart.nullFailed(I[166], 15703, 49, "url");
      if (eventSourceInitDict != null) {
        let eventSourceInitDict_1 = html_common.convertDartToNative_Dictionary(eventSourceInitDict);
        return html$.EventSource._create_1(url, eventSourceInitDict_1);
      }
      return html$.EventSource._create_2(url);
    }
    static _create_1(url, eventSourceInitDict) {
      return new EventSource(url, eventSourceInitDict);
    }
    static _create_2(url) {
      return new EventSource(url);
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    get [S$.$url]() {
      return this.url;
    }
    get [S$1.$withCredentials]() {
      return this.withCredentials;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    get [S.$onError]() {
      return html$.EventSource.errorEvent.forTarget(this);
    }
    get [S$.$onMessage]() {
      return html$.EventSource.messageEvent.forTarget(this);
    }
    get [S$1.$onOpen]() {
      return html$.EventSource.openEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.EventSource, ["html|EventSource"]);
  dart.setMethodSignature(html$.EventSource, () => dart.global.Object.setPrototypeOf({[S.$close]: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.EventSource))));
  dart.setStaticMethodSignature(html$.EventSource, () => ['new', '__', '_factoryEventSource', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.EventSource, () => dart.global.Object.setPrototypeOf({
    [S.$readyState]: T$.intN(),
    [S$.$url]: T$.StringN(),
    [S$1.$withCredentials]: T$.boolN(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent(),
    [S$1.$onOpen]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.EventSource))));
  dart.setLibraryUri(html$.EventSource, I[167]);
  dart.setStaticFieldSignature(html$.EventSource, () => ['errorEvent', 'messageEvent', 'openEvent', 'CLOSED', 'CONNECTING', 'OPEN']);
  dart.defineLazy(html$.EventSource, {
    /*html$.EventSource.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.EventSource.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    },
    /*html$.EventSource.openEvent*/get openEvent() {
      return C[381] || CT.C381;
    },
    /*html$.EventSource.CLOSED*/get CLOSED() {
      return 2;
    },
    /*html$.EventSource.CONNECTING*/get CONNECTING() {
      return 0;
    },
    /*html$.EventSource.OPEN*/get OPEN() {
      return 1;
    }
  }, false);
  dart.registerExtension("EventSource", html$.EventSource);
  html$.Events = class Events extends core.Object {
    static ['_#new#tearOff'](_ptr) {
      if (_ptr == null) dart.nullFailed(I[166], 15785, 15, "_ptr");
      return new html$.Events.new(_ptr);
    }
    _get(type) {
      if (type == null) dart.nullFailed(I[166], 15787, 36, "type");
      return new (G$._EventStreamOfEvent()).new(this[S$1._ptr], type, false);
    }
  };
  (html$.Events.new = function(_ptr) {
    if (_ptr == null) dart.nullFailed(I[166], 15785, 15, "_ptr");
    this[S$1._ptr] = _ptr;
    ;
  }).prototype = html$.Events.prototype;
  dart.addRtiResources(html$.Events, ["html|Events"]);
  dart.setMethodSignature(html$.Events, () => dart.global.Object.setPrototypeOf({_get: T$5.StringToStreamOfEvent()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Events))));
  dart.setLibraryUri(html$.Events, I[167]);
  dart.setFieldSignature(html$.Events, () => dart.global.Object.setPrototypeOf({[S$1._ptr]: {type: T$3.EventTarget(), isConst: false, isFinal: true, libraryUri: I[167]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$.Events))));
  html$.ElementEvents = class ElementEvents extends html$.Events {
    static ['_#new#tearOff'](ptr) {
      if (ptr == null) dart.nullFailed(I[166], 15810, 25, "ptr");
      return new html$.ElementEvents.new(ptr);
    }
    _get(type) {
      if (type == null) dart.nullFailed(I[166], 15812, 36, "type");
      if (dart.test(html$.ElementEvents.webkitEvents[$keys][$contains](type[$toLowerCase]()))) {
        if (dart.test(html_common.Device.isWebKit)) {
          return new (G$._ElementEventStreamImplOfEvent()).new(this[S$1._ptr], html$.ElementEvents.webkitEvents[$_get](type[$toLowerCase]()), false);
        }
      }
      return new (G$._ElementEventStreamImplOfEvent()).new(this[S$1._ptr], type, false);
    }
  };
  (html$.ElementEvents.new = function(ptr) {
    if (ptr == null) dart.nullFailed(I[166], 15810, 25, "ptr");
    dart.global.Object.getPrototypeOf(html$.ElementEvents).new.call(this, ptr);
    ;
  }).prototype = html$.ElementEvents.prototype;
  dart.addRtiResources(html$.ElementEvents, ["html|ElementEvents"]);
  dart.setLibraryUri(html$.ElementEvents, I[167]);
  dart.setStaticFieldSignature(html$.ElementEvents, () => ['webkitEvents']);
  dart.defineLazy(html$.ElementEvents, {
    /*html$.ElementEvents.webkitEvents*/get webkitEvents() {
      return new (G.IdentityMapOfString$String()).from(["animationend", "webkitAnimationEnd", "animationiteration", "webkitAnimationIteration", "animationstart", "webkitAnimationStart", "fullscreenchange", "webkitfullscreenchange", "fullscreenerror", "webkitfullscreenerror", "keyadded", "webkitkeyadded", "keyerror", "webkitkeyerror", "keymessage", "webkitkeymessage", "needkey", "webkitneedkey", "pointerlockchange", "webkitpointerlockchange", "pointerlockerror", "webkitpointerlockerror", "resourcetimingbufferfull", "webkitresourcetimingbufferfull", "transitionend", "webkitTransitionEnd", "speechchange", "webkitSpeechChange"]);
    }
  }, false);
  html$.ExtendableMessageEvent = class ExtendableMessageEvent extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.ExtendableMessageEvent.__();
    }
    get [S$.$data]() {
      return this.data;
    }
    get [S$1.$lastEventId]() {
      return this.lastEventId;
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$1.$ports]() {
      return this.ports;
    }
    get [S.$source]() {
      return this.source;
    }
  };
  dart.addRtiResources(html$.ExtendableMessageEvent, ["html|ExtendableMessageEvent"]);
  dart.setStaticMethodSignature(html$.ExtendableMessageEvent, () => ['__']);
  dart.setGetterSignature(html$.ExtendableMessageEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$data]: T$.ObjectN(),
    [S$1.$lastEventId]: T$.StringN(),
    [S$.$origin]: T$.StringN(),
    [S$1.$ports]: T$5.ListNOfMessagePort(),
    [S.$source]: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ExtendableMessageEvent))));
  dart.setLibraryUri(html$.ExtendableMessageEvent, I[167]);
  dart.registerExtension("ExtendableMessageEvent", html$.ExtendableMessageEvent);
  html$.External = class External extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.External.__();
    }
    [S$1.$AddSearchProvider](...args) {
      return this.AddSearchProvider.apply(this, args);
    }
    [S$1.$IsSearchProviderInstalled](...args) {
      return this.IsSearchProviderInstalled.apply(this, args);
    }
  };
  dart.addRtiResources(html$.External, ["html|External"]);
  dart.setMethodSignature(html$.External, () => dart.global.Object.setPrototypeOf({
    [S$1.$AddSearchProvider]: T$.VoidTovoid(),
    [S$1.$IsSearchProviderInstalled]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.External))));
  dart.setStaticMethodSignature(html$.External, () => ['__']);
  dart.setLibraryUri(html$.External, I[167]);
  dart.registerExtension("External", html$.External);
  html$.FaceDetector = class FaceDetector$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.FaceDetector.__();
    }
    static new(faceDetectorOptions = null) {
      if (faceDetectorOptions != null) {
        let faceDetectorOptions_1 = html_common.convertDartToNative_Dictionary(faceDetectorOptions);
        return html$.FaceDetector._create_1(faceDetectorOptions_1);
      }
      return html$.FaceDetector._create_2();
    }
    static ['_#new#tearOff'](faceDetectorOptions = null) {
      return html$.FaceDetector.new(faceDetectorOptions);
    }
    static _create_1(faceDetectorOptions) {
      return new FaceDetector(faceDetectorOptions);
    }
    static _create_2() {
      return new FaceDetector();
    }
    [S$.$detect](image) {
      return js_util.promiseToFuture(T$.List(), this.detect(image));
    }
  };
  dart.addRtiResources(html$.FaceDetector, ["html|FaceDetector"]);
  dart.setMethodSignature(html$.FaceDetector, () => dart.global.Object.setPrototypeOf({[S$.$detect]: T$4.dynamicToFutureOfList()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FaceDetector))));
  dart.setStaticMethodSignature(html$.FaceDetector, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.FaceDetector, I[167]);
  dart.registerExtension("FaceDetector", html$.FaceDetector);
  html$.FederatedCredential = class FederatedCredential$ extends html$.Credential {
    static ['_#_#tearOff']() {
      return html$.FederatedCredential.__();
    }
    static new(data) {
      if (data == null) dart.nullFailed(I[166], 15977, 35, "data");
      let data_1 = html_common.convertDartToNative_Dictionary(data);
      return html$.FederatedCredential._create_1(data_1);
    }
    static ['_#new#tearOff'](data) {
      if (data == null) dart.nullFailed(I[166], 15977, 35, "data");
      return html$.FederatedCredential.new(data);
    }
    static _create_1(data) {
      return new FederatedCredential(data);
    }
    get [S$.$protocol]() {
      return this.protocol;
    }
    get [S$1.$provider]() {
      return this.provider;
    }
    get [S$.$iconUrl]() {
      return this.iconURL;
    }
    get [$name]() {
      return this.name;
    }
  };
  dart.addRtiResources(html$.FederatedCredential, ["html|FederatedCredential", "html|CredentialUserData", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.FederatedCredential, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.FederatedCredential, () => dart.global.Object.setPrototypeOf({
    [S$.$protocol]: T$.StringN(),
    [S$1.$provider]: T$.StringN(),
    [S$.$iconUrl]: T$.StringN(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FederatedCredential))));
  dart.setLibraryUri(html$.FederatedCredential, I[167]);
  dart.registerExtension("FederatedCredential", html$.FederatedCredential);
  html$.FetchEvent = class FetchEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.FetchEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 16006, 29, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 16006, 39, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.FetchEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 16006, 29, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 16006, 39, "eventInitDict");
      return html$.FetchEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new FetchEvent(type, eventInitDict);
    }
    get [S$1.$clientId]() {
      return this.clientId;
    }
    get [S$1.$isReload]() {
      return this.isReload;
    }
    get [S$1.$preloadResponse]() {
      return js_util.promiseToFuture(T$.dynamic(), this.preloadResponse);
    }
    get [S$.$request]() {
      return this.request;
    }
    [S$.$respondWith](...args) {
      return this.respondWith.apply(this, args);
    }
  };
  dart.addRtiResources(html$.FetchEvent, ["html|FetchEvent"]);
  dart.setMethodSignature(html$.FetchEvent, () => dart.global.Object.setPrototypeOf({[S$.$respondWith]: T$1.FutureTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FetchEvent))));
  dart.setStaticMethodSignature(html$.FetchEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.FetchEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$clientId]: T$.StringN(),
    [S$1.$isReload]: T$.boolN(),
    [S$1.$preloadResponse]: T$0.Future(),
    [S$.$request]: T$4._RequestN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FetchEvent))));
  dart.setLibraryUri(html$.FetchEvent, I[167]);
  dart.registerExtension("FetchEvent", html$.FetchEvent);
  html$.FieldSetElement = class FieldSetElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.FieldSetElement.__();
    }
    static new() {
      return html$.document.createElement("fieldset");
    }
    static ['_#new#tearOff']() {
      return html$.FieldSetElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.FieldSetElement.created();
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$1.$elements]() {
      return this.elements;
    }
    get [S$.$form]() {
      return this.form;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S$.$validationMessage]() {
      return this.validationMessage;
    }
    get [S$.$validity]() {
      return this.validity;
    }
    get [S$.$willValidate]() {
      return this.willValidate;
    }
    [S$.$checkValidity](...args) {
      return this.checkValidity.apply(this, args);
    }
    [S$.$reportValidity](...args) {
      return this.reportValidity.apply(this, args);
    }
    [S$.$setCustomValidity](...args) {
      return this.setCustomValidity.apply(this, args);
    }
  };
  (html$.FieldSetElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.FieldSetElement).created.call(this);
    ;
  }).prototype = html$.FieldSetElement.prototype;
  dart.addRtiResources(html$.FieldSetElement, ["html|FieldSetElement"]);
  dart.setMethodSignature(html$.FieldSetElement, () => dart.global.Object.setPrototypeOf({
    [S$.$checkValidity]: T$.VoidTobool(),
    [S$.$reportValidity]: T$.VoidTobool(),
    [S$.$setCustomValidity]: T$.StringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FieldSetElement))));
  dart.setStaticMethodSignature(html$.FieldSetElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.FieldSetElement, () => dart.global.Object.setPrototypeOf({
    [S$.$disabled]: T$.boolN(),
    [S$1.$elements]: T$4.ListNOfNode(),
    [S$.$form]: T$4.FormElementN(),
    [$name]: T$.String(),
    [S.$type]: T$.String(),
    [S$.$validationMessage]: T$.String(),
    [S$.$validity]: T$4.ValidityState(),
    [S$.$willValidate]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FieldSetElement))));
  dart.setSetterSignature(html$.FieldSetElement, () => dart.global.Object.setPrototypeOf({
    [S$.$disabled]: T$.boolN(),
    [$name]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.FieldSetElement))));
  dart.setLibraryUri(html$.FieldSetElement, I[167]);
  dart.registerExtension("HTMLFieldSetElement", html$.FieldSetElement);
  html$.File = class File$ extends html$.Blob {
    static ['_#_#tearOff']() {
      return html$.File.__();
    }
    static new(fileBits, fileName, options = null) {
      if (fileBits == null) dart.nullFailed(I[166], 16087, 29, "fileBits");
      if (fileName == null) dart.nullFailed(I[166], 16087, 46, "fileName");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return html$.File._create_1(fileBits, fileName, options_1);
      }
      return html$.File._create_2(fileBits, fileName);
    }
    static ['_#new#tearOff'](fileBits, fileName, options = null) {
      if (fileBits == null) dart.nullFailed(I[166], 16087, 29, "fileBits");
      if (fileName == null) dart.nullFailed(I[166], 16087, 46, "fileName");
      return html$.File.new(fileBits, fileName, options);
    }
    static _create_1(fileBits, fileName, options) {
      return new File(fileBits, fileName, options);
    }
    static _create_2(fileBits, fileName) {
      return new File(fileBits, fileName);
    }
    get [S$1.$lastModified]() {
      return this.lastModified;
    }
    get [S$1.$lastModifiedDate]() {
      return html_common.convertNativeToDart_DateTime(this[S$1._get_lastModifiedDate]);
    }
    get [S$1._get_lastModifiedDate]() {
      return this.lastModifiedDate;
    }
    get [$name]() {
      return this.name;
    }
    get [S$1.$relativePath]() {
      return this.webkitRelativePath;
    }
  };
  dart.addRtiResources(html$.File, ["html|File"]);
  dart.setStaticMethodSignature(html$.File, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.File, () => dart.global.Object.setPrototypeOf({
    [S$1.$lastModified]: T$.intN(),
    [S$1.$lastModifiedDate]: T$2.DateTime(),
    [S$1._get_lastModifiedDate]: T$.dynamic(),
    [$name]: T$.String(),
    [S$1.$relativePath]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.File))));
  dart.setLibraryUri(html$.File, I[167]);
  dart.registerExtension("File", html$.File);
  html$.FileEntry = class FileEntry extends html$.Entry {
    static ['_#_#tearOff']() {
      return html$.FileEntry.__();
    }
    [S$1._createWriter](...args) {
      return this.createWriter.apply(this, args);
    }
    [S$1.$createWriter]() {
      let completer = G$.CompleterOfFileWriter().new();
      this[S$1._createWriter](dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 16139, 20, "value");
        _js_helper.applyExtension("FileWriter", value);
        completer.complete(value);
      }, T$5.FileWriterTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 16142, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$1._file$1](...args) {
      return this.file.apply(this, args);
    }
    [S$1.$file]() {
      let completer = G$.CompleterOfFile().new();
      this[S$1._file$1](dart.fn(value => {
        _js_helper.applyExtension("File", value);
        completer.complete(value);
      }, T$5.FileNTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 16158, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
  };
  dart.addRtiResources(html$.FileEntry, ["html|FileEntry"]);
  dart.setMethodSignature(html$.FileEntry, () => dart.global.Object.setPrototypeOf({
    [S$1._createWriter]: T$5.FnAndFnTovoid$5(),
    [S$1.$createWriter]: T$5.VoidToFutureOfFileWriter(),
    [S$1._file$1]: T$5.FnAndFnTovoid$6(),
    [S$1.$file]: T$5.VoidToFutureOfFile()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FileEntry))));
  dart.setStaticMethodSignature(html$.FileEntry, () => ['__']);
  dart.setLibraryUri(html$.FileEntry, I[167]);
  dart.registerExtension("FileEntry", html$.FileEntry);
  dart.registerExtension("webkitFileSystemFileEntry", html$.FileEntry);
  dart.registerExtension("FileSystemFileEntry", html$.FileEntry);
  const JavaScriptObject_ListBase$36$0 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$0.new = function() {
    G$.ListBaseOfFile().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$0).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$0.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$0, G$.ListBaseOfFile());
  const JavaScriptObject_ImmutableListMixin$36$0 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$0 {};
  (JavaScriptObject_ImmutableListMixin$36$0.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$0).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$0.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$0, G$.ImmutableListMixinOfFile());
  html$.FileList = class FileList extends JavaScriptObject_ImmutableListMixin$36$0 {
    static ['_#_#tearOff']() {
      return html$.FileList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 16179, 24, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 16185, 25, "index");
      T$5.File$1()[_as](value);
      if (value == null) dart.nullFailed(I[166], 16185, 37, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 16191, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 16219, 22, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.FileList, ["html|FileList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.FileList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$5.intToFile(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T$5.intToFileN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FileList))));
  dart.setStaticMethodSignature(html$.FileList, () => ['__']);
  dart.setGetterSignature(html$.FileList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FileList))));
  dart.setSetterSignature(html$.FileList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.FileList))));
  dart.setLibraryUri(html$.FileList, I[167]);
  dart.registerExtension("FileList", html$.FileList);
  html$.FileReader = class FileReader$ extends html$.EventTarget {
    get [S.$result]() {
      let res = this.result;
      if (T$0.ByteBuffer()[_is](res)) {
        return typed_data.Uint8List.view(res);
      }
      return res;
    }
    static ['_#_#tearOff']() {
      return html$.FileReader.__();
    }
    static new() {
      return html$.FileReader._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.FileReader.new();
    }
    static _create_1() {
      return new FileReader();
    }
    get [S.$error]() {
      return this.error;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    [S.$abort](...args) {
      return this.abort.apply(this, args);
    }
    [S$1.$readAsArrayBuffer](...args) {
      return this.readAsArrayBuffer.apply(this, args);
    }
    [S$1.$readAsDataUrl](...args) {
      return this.readAsDataURL.apply(this, args);
    }
    [S$1.$readAsText](...args) {
      return this.readAsText.apply(this, args);
    }
    get [S.$onAbort]() {
      return html$.FileReader.abortEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.FileReader.errorEvent.forTarget(this);
    }
    get [S.$onLoad]() {
      return html$.FileReader.loadEvent.forTarget(this);
    }
    get [S$1.$onLoadEnd]() {
      return html$.FileReader.loadEndEvent.forTarget(this);
    }
    get [S$1.$onLoadStart]() {
      return html$.FileReader.loadStartEvent.forTarget(this);
    }
    get [S$.$onProgress]() {
      return html$.FileReader.progressEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.FileReader, ["html|FileReader"]);
  dart.setMethodSignature(html$.FileReader, () => dart.global.Object.setPrototypeOf({
    [S.$abort]: T$.VoidTovoid(),
    [S$1.$readAsArrayBuffer]: T$5.BlobTovoid(),
    [S$1.$readAsDataUrl]: T$5.BlobTovoid(),
    [S$1.$readAsText]: T$5.BlobAndStringNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FileReader))));
  dart.setStaticMethodSignature(html$.FileReader, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.FileReader, () => dart.global.Object.setPrototypeOf({
    [S.$result]: T$.ObjectN(),
    [S.$error]: T$3.DomExceptionN(),
    [S.$readyState]: T$.int(),
    [S.$onAbort]: T$4.StreamOfProgressEvent(),
    [S.$onError]: T$4.StreamOfProgressEvent(),
    [S.$onLoad]: T$4.StreamOfProgressEvent(),
    [S$1.$onLoadEnd]: T$4.StreamOfProgressEvent(),
    [S$1.$onLoadStart]: T$4.StreamOfProgressEvent(),
    [S$.$onProgress]: T$4.StreamOfProgressEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FileReader))));
  dart.setLibraryUri(html$.FileReader, I[167]);
  dart.setStaticFieldSignature(html$.FileReader, () => ['abortEvent', 'errorEvent', 'loadEvent', 'loadEndEvent', 'loadStartEvent', 'progressEvent', 'DONE', 'EMPTY', 'LOADING']);
  dart.defineLazy(html$.FileReader, {
    /*html$.FileReader.abortEvent*/get abortEvent() {
      return C[382] || CT.C382;
    },
    /*html$.FileReader.errorEvent*/get errorEvent() {
      return C[383] || CT.C383;
    },
    /*html$.FileReader.loadEvent*/get loadEvent() {
      return C[384] || CT.C384;
    },
    /*html$.FileReader.loadEndEvent*/get loadEndEvent() {
      return C[385] || CT.C385;
    },
    /*html$.FileReader.loadStartEvent*/get loadStartEvent() {
      return C[386] || CT.C386;
    },
    /*html$.FileReader.progressEvent*/get progressEvent() {
      return C[360] || CT.C360;
    },
    /*html$.FileReader.DONE*/get DONE() {
      return 2;
    },
    /*html$.FileReader.EMPTY*/get EMPTY() {
      return 0;
    },
    /*html$.FileReader.LOADING*/get LOADING() {
      return 1;
    }
  }, false);
  dart.registerExtension("FileReader", html$.FileReader);
  html$.FileSystem = class FileSystem extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.FileSystem.__();
    }
    static get supported() {
      return !!window.webkitRequestFileSystem;
    }
    get [$name]() {
      return this.name;
    }
    get [S$1.$root]() {
      return this.root;
    }
  };
  dart.addRtiResources(html$.FileSystem, ["html|FileSystem"]);
  dart.setStaticMethodSignature(html$.FileSystem, () => ['__']);
  dart.setGetterSignature(html$.FileSystem, () => dart.global.Object.setPrototypeOf({
    [$name]: T$.StringN(),
    [S$1.$root]: T$5.DirectoryEntryN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FileSystem))));
  dart.setStaticGetterSignature(html$.FileSystem, () => ['supported']);
  dart.setLibraryUri(html$.FileSystem, I[167]);
  dart.registerExtension("DOMFileSystem", html$.FileSystem);
  dart.registerExtension("WebKitFileSystem", html$.FileSystem);
  dart.registerExtension("webkitFileSystem", html$.FileSystem);
  dart.registerExtension("FileSystem", html$.FileSystem);
  html$.FileWriter = class FileWriter extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.FileWriter.__();
    }
    get [S.$error]() {
      return this.error;
    }
    get [$length]() {
      return this.length;
    }
    get [S$0.$position]() {
      return this.position;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    [S.$abort](...args) {
      return this.abort.apply(this, args);
    }
    [S$1.$seek](...args) {
      return this.seek.apply(this, args);
    }
    [$truncate](...args) {
      return this.truncate.apply(this, args);
    }
    [S$1.$write](...args) {
      return this.write.apply(this, args);
    }
    get [S.$onAbort]() {
      return html$.FileWriter.abortEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.FileWriter.errorEvent.forTarget(this);
    }
    get [S$.$onProgress]() {
      return html$.FileWriter.progressEvent.forTarget(this);
    }
    get [S$1.$onWrite]() {
      return html$.FileWriter.writeEvent.forTarget(this);
    }
    get [S$1.$onWriteEnd]() {
      return html$.FileWriter.writeEndEvent.forTarget(this);
    }
    get [S$1.$onWriteStart]() {
      return html$.FileWriter.writeStartEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.FileWriter, ["html|FileWriter"]);
  dart.setMethodSignature(html$.FileWriter, () => dart.global.Object.setPrototypeOf({
    [S.$abort]: T$.VoidTovoid(),
    [S$1.$seek]: T$.intTovoid(),
    [$truncate]: T$.intTovoid(),
    [S$1.$write]: T$5.BlobTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FileWriter))));
  dart.setStaticMethodSignature(html$.FileWriter, () => ['__']);
  dart.setGetterSignature(html$.FileWriter, () => dart.global.Object.setPrototypeOf({
    [S.$error]: T$3.DomExceptionN(),
    [$length]: T$.intN(),
    [S$0.$position]: T$.intN(),
    [S.$readyState]: T$.intN(),
    [S.$onAbort]: T$4.StreamOfProgressEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S$.$onProgress]: T$4.StreamOfProgressEvent(),
    [S$1.$onWrite]: T$4.StreamOfProgressEvent(),
    [S$1.$onWriteEnd]: T$4.StreamOfProgressEvent(),
    [S$1.$onWriteStart]: T$4.StreamOfProgressEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FileWriter))));
  dart.setLibraryUri(html$.FileWriter, I[167]);
  dart.setStaticFieldSignature(html$.FileWriter, () => ['abortEvent', 'errorEvent', 'progressEvent', 'writeEvent', 'writeEndEvent', 'writeStartEvent', 'DONE', 'INIT', 'WRITING']);
  dart.defineLazy(html$.FileWriter, {
    /*html$.FileWriter.abortEvent*/get abortEvent() {
      return C[382] || CT.C382;
    },
    /*html$.FileWriter.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.FileWriter.progressEvent*/get progressEvent() {
      return C[360] || CT.C360;
    },
    /*html$.FileWriter.writeEvent*/get writeEvent() {
      return C[387] || CT.C387;
    },
    /*html$.FileWriter.writeEndEvent*/get writeEndEvent() {
      return C[388] || CT.C388;
    },
    /*html$.FileWriter.writeStartEvent*/get writeStartEvent() {
      return C[389] || CT.C389;
    },
    /*html$.FileWriter.DONE*/get DONE() {
      return 2;
    },
    /*html$.FileWriter.INIT*/get INIT() {
      return 0;
    },
    /*html$.FileWriter.WRITING*/get WRITING() {
      return 1;
    }
  }, false);
  dart.registerExtension("FileWriter", html$.FileWriter);
  html$.FocusEvent = class FocusEvent$ extends html$.UIEvent {
    static ['_#_#tearOff']() {
      return html$.FocusEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 16488, 29, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.FocusEvent._create_1(type, eventInitDict_1);
      }
      return html$.FocusEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 16488, 29, "type");
      return html$.FocusEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new FocusEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new FocusEvent(type);
    }
    get [S$1.$relatedTarget]() {
      return html$._convertNativeToDart_EventTarget(this[S$1._get_relatedTarget]);
    }
    get [S$1._get_relatedTarget]() {
      return this.relatedTarget;
    }
  };
  dart.addRtiResources(html$.FocusEvent, ["html|FocusEvent"]);
  dart.setStaticMethodSignature(html$.FocusEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.FocusEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$relatedTarget]: T$3.EventTargetN(),
    [S$1._get_relatedTarget]: T$.dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FocusEvent))));
  dart.setLibraryUri(html$.FocusEvent, I[167]);
  dart.registerExtension("FocusEvent", html$.FocusEvent);
  html$.FontFace = class FontFace$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.FontFace.__();
    }
    static new(family, source, descriptors = null) {
      if (family == null) dart.nullFailed(I[166], 16517, 27, "family");
      if (source == null) dart.nullFailed(I[166], 16517, 42, "source");
      if (descriptors != null) {
        let descriptors_1 = html_common.convertDartToNative_Dictionary(descriptors);
        return html$.FontFace._create_1(family, source, descriptors_1);
      }
      return html$.FontFace._create_2(family, source);
    }
    static ['_#new#tearOff'](family, source, descriptors = null) {
      if (family == null) dart.nullFailed(I[166], 16517, 27, "family");
      if (source == null) dart.nullFailed(I[166], 16517, 42, "source");
      return html$.FontFace.new(family, source, descriptors);
    }
    static _create_1(family, source, descriptors) {
      return new FontFace(family, source, descriptors);
    }
    static _create_2(family, source) {
      return new FontFace(family, source);
    }
    get [S$0.$display]() {
      return this.display;
    }
    set [S$0.$display](value) {
      this.display = value;
    }
    get [S$1.$family]() {
      return this.family;
    }
    set [S$1.$family](value) {
      this.family = value;
    }
    get [S$1.$featureSettings]() {
      return this.featureSettings;
    }
    set [S$1.$featureSettings](value) {
      this.featureSettings = value;
    }
    get [S$1.$loaded]() {
      return js_util.promiseToFuture(T$5.FontFace(), this.loaded);
    }
    get [S$.$status]() {
      return this.status;
    }
    get [S$1.$stretch]() {
      return this.stretch;
    }
    set [S$1.$stretch](value) {
      this.stretch = value;
    }
    get [S.$style]() {
      return this.style;
    }
    set [S.$style](value) {
      this.style = value;
    }
    get [S$0.$unicodeRange]() {
      return this.unicodeRange;
    }
    set [S$0.$unicodeRange](value) {
      this.unicodeRange = value;
    }
    get [S$1.$variant]() {
      return this.variant;
    }
    set [S$1.$variant](value) {
      this.variant = value;
    }
    get [S$1.$weight]() {
      return this.weight;
    }
    set [S$1.$weight](value) {
      this.weight = value;
    }
    [S$.$load]() {
      return js_util.promiseToFuture(T$5.FontFace(), this.load());
    }
  };
  dart.addRtiResources(html$.FontFace, ["html|FontFace"]);
  dart.setMethodSignature(html$.FontFace, () => dart.global.Object.setPrototypeOf({[S$.$load]: T$5.VoidToFutureOfFontFace()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FontFace))));
  dart.setStaticMethodSignature(html$.FontFace, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.FontFace, () => dart.global.Object.setPrototypeOf({
    [S$0.$display]: T$.StringN(),
    [S$1.$family]: T$.StringN(),
    [S$1.$featureSettings]: T$.StringN(),
    [S$1.$loaded]: T$5.FutureOfFontFace(),
    [S$.$status]: T$.StringN(),
    [S$1.$stretch]: T$.StringN(),
    [S.$style]: T$.StringN(),
    [S$0.$unicodeRange]: T$.StringN(),
    [S$1.$variant]: T$.StringN(),
    [S$1.$weight]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FontFace))));
  dart.setSetterSignature(html$.FontFace, () => dart.global.Object.setPrototypeOf({
    [S$0.$display]: T$.StringN(),
    [S$1.$family]: T$.StringN(),
    [S$1.$featureSettings]: T$.StringN(),
    [S$1.$stretch]: T$.StringN(),
    [S.$style]: T$.StringN(),
    [S$0.$unicodeRange]: T$.StringN(),
    [S$1.$variant]: T$.StringN(),
    [S$1.$weight]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.FontFace))));
  dart.setLibraryUri(html$.FontFace, I[167]);
  dart.registerExtension("FontFace", html$.FontFace);
  html$.FontFaceSet = class FontFaceSet extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.FontFaceSet.__();
    }
    get [S$.$status]() {
      return this.status;
    }
    [$add](...args) {
      return this.add.apply(this, args);
    }
    [S$1.$check](...args) {
      return this.check.apply(this, args);
    }
    [$clear](...args) {
      return this.clear.apply(this, args);
    }
    [S.$delete](...args) {
      return this.delete.apply(this, args);
    }
    [$forEach](...args) {
      return this.forEach.apply(this, args);
    }
    [S$.$has](...args) {
      return this.has.apply(this, args);
    }
    get [S$1.$onLoading]() {
      return html$.FontFaceSet.loadingEvent.forTarget(this);
    }
    get [S$1.$onLoadingDone]() {
      return html$.FontFaceSet.loadingDoneEvent.forTarget(this);
    }
    get [S$1.$onLoadingError]() {
      return html$.FontFaceSet.loadingErrorEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.FontFaceSet, ["html|FontFaceSet"]);
  dart.setMethodSignature(html$.FontFaceSet, () => dart.global.Object.setPrototypeOf({
    [$add]: T$5.FontFaceToFontFaceSetN(),
    [S$1.$check]: T$5.StringAndStringNTobool(),
    [$clear]: T$.VoidTovoid(),
    [S.$delete]: T$5.FontFaceTobool(),
    [$forEach]: T$5.FnAndObjectNTovoid(),
    [S$.$has]: T$5.FontFaceTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FontFaceSet))));
  dart.setStaticMethodSignature(html$.FontFaceSet, () => ['__']);
  dart.setGetterSignature(html$.FontFaceSet, () => dart.global.Object.setPrototypeOf({
    [S$.$status]: T$.StringN(),
    [S$1.$onLoading]: T$5.StreamOfFontFaceSetLoadEvent(),
    [S$1.$onLoadingDone]: T$5.StreamOfFontFaceSetLoadEvent(),
    [S$1.$onLoadingError]: T$5.StreamOfFontFaceSetLoadEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FontFaceSet))));
  dart.setLibraryUri(html$.FontFaceSet, I[167]);
  dart.setStaticFieldSignature(html$.FontFaceSet, () => ['loadingEvent', 'loadingDoneEvent', 'loadingErrorEvent']);
  dart.defineLazy(html$.FontFaceSet, {
    /*html$.FontFaceSet.loadingEvent*/get loadingEvent() {
      return C[390] || CT.C390;
    },
    /*html$.FontFaceSet.loadingDoneEvent*/get loadingDoneEvent() {
      return C[391] || CT.C391;
    },
    /*html$.FontFaceSet.loadingErrorEvent*/get loadingErrorEvent() {
      return C[392] || CT.C392;
    }
  }, false);
  dart.registerExtension("FontFaceSet", html$.FontFaceSet);
  html$.FontFaceSetLoadEvent = class FontFaceSetLoadEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.FontFaceSetLoadEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 16622, 39, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.FontFaceSetLoadEvent._create_1(type, eventInitDict_1);
      }
      return html$.FontFaceSetLoadEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 16622, 39, "type");
      return html$.FontFaceSetLoadEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new FontFaceSetLoadEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new FontFaceSetLoadEvent(type);
    }
    get [S$1.$fontfaces]() {
      return this.fontfaces;
    }
  };
  dart.addRtiResources(html$.FontFaceSetLoadEvent, ["html|FontFaceSetLoadEvent"]);
  dart.setStaticMethodSignature(html$.FontFaceSetLoadEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.FontFaceSetLoadEvent, () => dart.global.Object.setPrototypeOf({[S$1.$fontfaces]: T$5.ListNOfFontFace()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FontFaceSetLoadEvent))));
  dart.setLibraryUri(html$.FontFaceSetLoadEvent, I[167]);
  dart.registerExtension("FontFaceSetLoadEvent", html$.FontFaceSetLoadEvent);
  html$.FontFaceSource = class FontFaceSource extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.FontFaceSource.__();
    }
    get [S$1.$fonts]() {
      return this.fonts;
    }
  };
  dart.addRtiResources(html$.FontFaceSource, ["html|FontFaceSource"]);
  dart.setStaticMethodSignature(html$.FontFaceSource, () => ['__']);
  dart.setGetterSignature(html$.FontFaceSource, () => dart.global.Object.setPrototypeOf({[S$1.$fonts]: T$5.FontFaceSetN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FontFaceSource))));
  dart.setLibraryUri(html$.FontFaceSource, I[167]);
  dart.registerExtension("FontFaceSource", html$.FontFaceSource);
  html$.ForeignFetchEvent = class ForeignFetchEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.ForeignFetchEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 16663, 36, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 16663, 46, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.ForeignFetchEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 16663, 36, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 16663, 46, "eventInitDict");
      return html$.ForeignFetchEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new ForeignFetchEvent(type, eventInitDict);
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$.$request]() {
      return this.request;
    }
    [S$.$respondWith](...args) {
      return this.respondWith.apply(this, args);
    }
  };
  dart.addRtiResources(html$.ForeignFetchEvent, ["html|ForeignFetchEvent"]);
  dart.setMethodSignature(html$.ForeignFetchEvent, () => dart.global.Object.setPrototypeOf({[S$.$respondWith]: T$1.FutureTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ForeignFetchEvent))));
  dart.setStaticMethodSignature(html$.ForeignFetchEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.ForeignFetchEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$origin]: T$.StringN(),
    [S$.$request]: T$4._RequestN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ForeignFetchEvent))));
  dart.setLibraryUri(html$.ForeignFetchEvent, I[167]);
  dart.registerExtension("ForeignFetchEvent", html$.ForeignFetchEvent);
  html$.FormData = class FormData$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.FormData.__();
    }
    static new(form = null) {
      if (form != null) {
        return html$.FormData._create_1(form);
      }
      return html$.FormData._create_2();
    }
    static ['_#new#tearOff'](form = null) {
      return html$.FormData.new(form);
    }
    static _create_1(form) {
      return new FormData(form);
    }
    static _create_2() {
      return new FormData();
    }
    static get supported() {
      return !!window.FormData;
    }
    [S.$append](...args) {
      return this.append.apply(this, args);
    }
    [S$1.$appendBlob](...args) {
      return this.append.apply(this, args);
    }
    [S.$delete](...args) {
      return this.delete.apply(this, args);
    }
    [S.$get](...args) {
      return this.get.apply(this, args);
    }
    [S.$getAll](...args) {
      return this.getAll.apply(this, args);
    }
    [S$.$has](...args) {
      return this.has.apply(this, args);
    }
    [S$.$set](...args) {
      return this.set.apply(this, args);
    }
  };
  dart.addRtiResources(html$.FormData, ["html|FormData"]);
  dart.setMethodSignature(html$.FormData, () => dart.global.Object.setPrototypeOf({
    [S.$append]: T$2.StringAndStringTovoid(),
    [S$1.$appendBlob]: T$5.StringAndBlobAndStringNTovoid(),
    [S.$delete]: T$.StringTovoid(),
    [S.$get]: T$4.StringToObjectN(),
    [S.$getAll]: T$5.StringToListOfObject(),
    [S$.$has]: T$.StringTobool(),
    [S$.$set]: T$5.StringAnddynamicAndStringNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FormData))));
  dart.setStaticMethodSignature(html$.FormData, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setStaticGetterSignature(html$.FormData, () => ['supported']);
  dart.setLibraryUri(html$.FormData, I[167]);
  dart.registerExtension("FormData", html$.FormData);
  html$.FormElement = class FormElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.FormElement.__();
    }
    static new() {
      return html$.document.createElement("form");
    }
    static ['_#new#tearOff']() {
      return html$.FormElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.FormElement.created();
    }
    get [S$1.$acceptCharset]() {
      return this.acceptCharset;
    }
    set [S$1.$acceptCharset](value) {
      this.acceptCharset = value;
    }
    get [S$1.$action]() {
      return this.action;
    }
    set [S$1.$action](value) {
      this.action = value;
    }
    get [S$.$autocomplete]() {
      return this.autocomplete;
    }
    set [S$.$autocomplete](value) {
      this.autocomplete = value;
    }
    get [S$.$encoding]() {
      return this.encoding;
    }
    set [S$.$encoding](value) {
      this.encoding = value;
    }
    get [S$1.$enctype]() {
      return this.enctype;
    }
    set [S$1.$enctype](value) {
      this.enctype = value;
    }
    get [$length]() {
      return this.length;
    }
    get [S$1.$method]() {
      return this.method;
    }
    set [S$1.$method](value) {
      this.method = value;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S$1.$noValidate]() {
      return this.noValidate;
    }
    set [S$1.$noValidate](value) {
      this.noValidate = value;
    }
    get [S.$target]() {
      return this.target;
    }
    set [S.$target](value) {
      this.target = value;
    }
    [S$.__getter__](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$.$checkValidity](...args) {
      return this.checkValidity.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [S$.$reportValidity](...args) {
      return this.reportValidity.apply(this, args);
    }
    [S$1.$requestAutocomplete](details) {
      let details_1 = html_common.convertDartToNative_Dictionary(details);
      this[S$1._requestAutocomplete_1](details_1);
      return;
    }
    [S$1._requestAutocomplete_1](...args) {
      return this.requestAutocomplete.apply(this, args);
    }
    [S$1.$reset](...args) {
      return this.reset.apply(this, args);
    }
    [S$1.$submit](...args) {
      return this.submit.apply(this, args);
    }
  };
  (html$.FormElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.FormElement).created.call(this);
    ;
  }).prototype = html$.FormElement.prototype;
  dart.addRtiResources(html$.FormElement, ["html|FormElement"]);
  dart.setMethodSignature(html$.FormElement, () => dart.global.Object.setPrototypeOf({
    [S$.__getter__]: T$4.StringToObjectN(),
    [S$.$checkValidity]: T$.VoidTobool(),
    [S$.$item]: T$5.intToElement(),
    [S$.$reportValidity]: T$.VoidTobool(),
    [S$1.$requestAutocomplete]: T$2.MapNTovoid(),
    [S$1._requestAutocomplete_1]: T$.dynamicTovoid(),
    [S$1.$reset]: T$.VoidTovoid(),
    [S$1.$submit]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.FormElement))));
  dart.setStaticMethodSignature(html$.FormElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.FormElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$acceptCharset]: T$.StringN(),
    [S$1.$action]: T$.StringN(),
    [S$.$autocomplete]: T$.StringN(),
    [S$.$encoding]: T$.StringN(),
    [S$1.$enctype]: T$.StringN(),
    [$length]: T$.intN(),
    [S$1.$method]: T$.StringN(),
    [$name]: T$.StringN(),
    [S$1.$noValidate]: T$.boolN(),
    [S.$target]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.FormElement))));
  dart.setSetterSignature(html$.FormElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$acceptCharset]: T$.StringN(),
    [S$1.$action]: T$.StringN(),
    [S$.$autocomplete]: T$.StringN(),
    [S$.$encoding]: T$.StringN(),
    [S$1.$enctype]: T$.StringN(),
    [S$1.$method]: T$.StringN(),
    [$name]: T$.StringN(),
    [S$1.$noValidate]: T$.boolN(),
    [S.$target]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.FormElement))));
  dart.setLibraryUri(html$.FormElement, I[167]);
  dart.registerExtension("HTMLFormElement", html$.FormElement);
  html$.Gamepad = class Gamepad extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Gamepad.__();
    }
    get [S$1.$axes]() {
      return this.axes;
    }
    get [S$1.$buttons]() {
      return this.buttons;
    }
    get [S$1.$connected]() {
      return this.connected;
    }
    get [S$1.$displayId]() {
      return this.displayId;
    }
    get [S$1.$hand]() {
      return this.hand;
    }
    get [S.$id]() {
      return this.id;
    }
    get [S.$index]() {
      return this.index;
    }
    get [S$1.$mapping]() {
      return this.mapping;
    }
    get [S$1.$pose]() {
      return this.pose;
    }
    get [S$.$timestamp]() {
      return this.timestamp;
    }
  };
  dart.addRtiResources(html$.Gamepad, ["html|Gamepad"]);
  dart.setStaticMethodSignature(html$.Gamepad, () => ['__']);
  dart.setGetterSignature(html$.Gamepad, () => dart.global.Object.setPrototypeOf({
    [S$1.$axes]: T$4.ListNOfnum(),
    [S$1.$buttons]: T$5.ListNOfGamepadButton(),
    [S$1.$connected]: T$.boolN(),
    [S$1.$displayId]: T$.intN(),
    [S$1.$hand]: T$.StringN(),
    [S.$id]: T$.StringN(),
    [S.$index]: T$.intN(),
    [S$1.$mapping]: T$.StringN(),
    [S$1.$pose]: T$5.GamepadPoseN(),
    [S$.$timestamp]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Gamepad))));
  dart.setLibraryUri(html$.Gamepad, I[167]);
  dart.registerExtension("Gamepad", html$.Gamepad);
  html$.GamepadButton = class GamepadButton extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.GamepadButton.__();
    }
    get [S$.$pressed]() {
      return this.pressed;
    }
    get [S$1.$touched]() {
      return this.touched;
    }
    get [S.$value]() {
      return this.value;
    }
  };
  dart.addRtiResources(html$.GamepadButton, ["html|GamepadButton"]);
  dart.setStaticMethodSignature(html$.GamepadButton, () => ['__']);
  dart.setGetterSignature(html$.GamepadButton, () => dart.global.Object.setPrototypeOf({
    [S$.$pressed]: T$.boolN(),
    [S$1.$touched]: T$.boolN(),
    [S.$value]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.GamepadButton))));
  dart.setLibraryUri(html$.GamepadButton, I[167]);
  dart.registerExtension("GamepadButton", html$.GamepadButton);
  html$.GamepadEvent = class GamepadEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.GamepadEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 16875, 31, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.GamepadEvent._create_1(type, eventInitDict_1);
      }
      return html$.GamepadEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 16875, 31, "type");
      return html$.GamepadEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new GamepadEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new GamepadEvent(type);
    }
    get [S$1.$gamepad]() {
      return this.gamepad;
    }
  };
  dart.addRtiResources(html$.GamepadEvent, ["html|GamepadEvent"]);
  dart.setStaticMethodSignature(html$.GamepadEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.GamepadEvent, () => dart.global.Object.setPrototypeOf({[S$1.$gamepad]: T$5.GamepadN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.GamepadEvent))));
  dart.setLibraryUri(html$.GamepadEvent, I[167]);
  dart.registerExtension("GamepadEvent", html$.GamepadEvent);
  html$.GamepadPose = class GamepadPose extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.GamepadPose.__();
    }
    get [S$1.$angularAcceleration]() {
      return this.angularAcceleration;
    }
    get [S$1.$angularVelocity]() {
      return this.angularVelocity;
    }
    get [S$1.$hasOrientation]() {
      return this.hasOrientation;
    }
    get [S$1.$hasPosition]() {
      return this.hasPosition;
    }
    get [S$1.$linearAcceleration]() {
      return this.linearAcceleration;
    }
    get [S$1.$linearVelocity]() {
      return this.linearVelocity;
    }
    get [S$.$orientation]() {
      return this.orientation;
    }
    get [S$0.$position]() {
      return this.position;
    }
  };
  dart.addRtiResources(html$.GamepadPose, ["html|GamepadPose"]);
  dart.setStaticMethodSignature(html$.GamepadPose, () => ['__']);
  dart.setGetterSignature(html$.GamepadPose, () => dart.global.Object.setPrototypeOf({
    [S$1.$angularAcceleration]: T$5.Float32ListN(),
    [S$1.$angularVelocity]: T$5.Float32ListN(),
    [S$1.$hasOrientation]: T$.boolN(),
    [S$1.$hasPosition]: T$.boolN(),
    [S$1.$linearAcceleration]: T$5.Float32ListN(),
    [S$1.$linearVelocity]: T$5.Float32ListN(),
    [S$.$orientation]: T$5.Float32ListN(),
    [S$0.$position]: T$5.Float32ListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.GamepadPose))));
  dart.setLibraryUri(html$.GamepadPose, I[167]);
  dart.registerExtension("GamepadPose", html$.GamepadPose);
  html$.Geolocation = class Geolocation extends _interceptors.JavaScriptObject {
    [S$1.$getCurrentPosition](opts) {
      let enableHighAccuracy = opts && 'enableHighAccuracy' in opts ? opts.enableHighAccuracy : null;
      let timeout = opts && 'timeout' in opts ? opts.timeout : null;
      let maximumAge = opts && 'maximumAge' in opts ? opts.maximumAge : null;
      let options = new _js_helper.LinkedMap.new();
      if (enableHighAccuracy != null) {
        options[$_set]("enableHighAccuracy", enableHighAccuracy);
      }
      if (timeout != null) {
        options[$_set]("timeout", timeout.inMilliseconds);
      }
      if (maximumAge != null) {
        options[$_set]("maximumAge", maximumAge.inMilliseconds);
      }
      let completer = G$.CompleterOfGeoposition().new();
      try {
        this[S$1._getCurrentPosition](dart.fn(position => {
          completer.complete(this[S$1._ensurePosition](position));
        }, T$.dynamicTovoid()), dart.fn(error => {
          if (error == null) dart.nullFailed(I[166], 16939, 11, "error");
          completer.completeError(error);
        }, T$5.PositionErrorTovoid()), options);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let stacktrace = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          completer.completeError(e, stacktrace);
        } else
          throw t$36$35e;
      }
      return completer.future;
    }
    [S$1.$watchPosition](opts) {
      let enableHighAccuracy = opts && 'enableHighAccuracy' in opts ? opts.enableHighAccuracy : null;
      let timeout = opts && 'timeout' in opts ? opts.timeout : null;
      let maximumAge = opts && 'maximumAge' in opts ? opts.maximumAge : null;
      let options = new _js_helper.LinkedMap.new();
      if (enableHighAccuracy != null) {
        options[$_set]("enableHighAccuracy", enableHighAccuracy);
      }
      if (timeout != null) {
        options[$_set]("timeout", timeout.inMilliseconds);
      }
      if (maximumAge != null) {
        options[$_set]("maximumAge", maximumAge.inMilliseconds);
      }
      let watchId = null;
      let controller = G$.StreamControllerOfGeoposition().new({sync: true, onCancel: dart.fn(() => {
          let id = watchId;
          if (id != null) this[S$1._clearWatch](id);
        }, T$0.VoidToNull())});
      controller.onListen = dart.fn(() => {
        if (!(watchId == null)) dart.assertFailed(null, I[166], 16970, 14, "watchId == null");
        watchId = this[S$1._watchPosition](dart.fn(position => {
          controller.add(this[S$1._ensurePosition](position));
        }, T$.dynamicTovoid()), dart.fn(error => {
          if (error == null) dart.nullFailed(I[166], 16973, 11, "error");
          controller.addError(error);
        }, T$5.PositionErrorTovoid()), options);
      }, T$.VoidTovoid());
      return controller.stream;
    }
    [S$1._ensurePosition](domPosition) {
      try {
        if (T$5.Geoposition()[_is](domPosition)) {
          return domPosition;
        }
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e;
      }
      return new html$._GeopositionWrapper.new(domPosition);
    }
    static ['_#_#tearOff']() {
      return html$.Geolocation.__();
    }
    [S$1._clearWatch](...args) {
      return this.clearWatch.apply(this, args);
    }
    [S$1._getCurrentPosition](successCallback, errorCallback = null, options = null) {
      if (successCallback == null) dart.nullFailed(I[166], 17001, 46, "successCallback");
      if (options != null) {
        let successCallback_1 = _js_helper.convertDartClosureToJS(T$.dynamicTovoid(), successCallback, 1);
        let options_2 = html_common.convertDartToNative_Dictionary(options);
        this[S$1._getCurrentPosition_1](successCallback_1, errorCallback, options_2);
        return;
      }
      if (errorCallback != null) {
        let successCallback_1 = _js_helper.convertDartClosureToJS(T$.dynamicTovoid(), successCallback, 1);
        this[S$1._getCurrentPosition_2](successCallback_1, errorCallback);
        return;
      }
      let successCallback_1 = _js_helper.convertDartClosureToJS(T$.dynamicTovoid(), successCallback, 1);
      this[S$1._getCurrentPosition_3](successCallback_1);
      return;
    }
    [S$1._getCurrentPosition_1](...args) {
      return this.getCurrentPosition.apply(this, args);
    }
    [S$1._getCurrentPosition_2](...args) {
      return this.getCurrentPosition.apply(this, args);
    }
    [S$1._getCurrentPosition_3](...args) {
      return this.getCurrentPosition.apply(this, args);
    }
    [S$1._watchPosition](successCallback, errorCallback = null, options = null) {
      if (successCallback == null) dart.nullFailed(I[166], 17036, 40, "successCallback");
      if (options != null) {
        let successCallback_1 = _js_helper.convertDartClosureToJS(T$.dynamicTovoid(), successCallback, 1);
        let options_2 = html_common.convertDartToNative_Dictionary(options);
        return this[S$1._watchPosition_1](successCallback_1, errorCallback, options_2);
      }
      if (errorCallback != null) {
        let successCallback_1 = _js_helper.convertDartClosureToJS(T$.dynamicTovoid(), successCallback, 1);
        return this[S$1._watchPosition_2](successCallback_1, errorCallback);
      }
      let successCallback_1 = _js_helper.convertDartClosureToJS(T$.dynamicTovoid(), successCallback, 1);
      return this[S$1._watchPosition_3](successCallback_1);
    }
    [S$1._watchPosition_1](...args) {
      return this.watchPosition.apply(this, args);
    }
    [S$1._watchPosition_2](...args) {
      return this.watchPosition.apply(this, args);
    }
    [S$1._watchPosition_3](...args) {
      return this.watchPosition.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Geolocation, ["html|Geolocation"]);
  dart.setMethodSignature(html$.Geolocation, () => dart.global.Object.setPrototypeOf({
    [S$1.$getCurrentPosition]: T$5.__ToFutureOfGeoposition(),
    [S$1.$watchPosition]: T$5.__ToStreamOfGeoposition(),
    [S$1._ensurePosition]: T$5.dynamicToGeoposition(),
    [S$1._clearWatch]: T$.intTovoid(),
    [S$1._getCurrentPosition]: T$5.FnAndFnAndMapNTovoid(),
    [S$1._getCurrentPosition_1]: T$5.dynamicAndFnAnddynamicTovoid(),
    [S$1._getCurrentPosition_2]: T$5.dynamicAndFnTovoid(),
    [S$1._getCurrentPosition_3]: T$.dynamicTovoid(),
    [S$1._watchPosition]: T$5.FnAndFnAndMapNToint(),
    [S$1._watchPosition_1]: T$5.dynamicAndFnAnddynamicToint(),
    [S$1._watchPosition_2]: T$5.dynamicAndFnToint(),
    [S$1._watchPosition_3]: T$0.dynamicToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Geolocation))));
  dart.setStaticMethodSignature(html$.Geolocation, () => ['__']);
  dart.setLibraryUri(html$.Geolocation, I[167]);
  dart.registerExtension("Geolocation", html$.Geolocation);
  html$._GeopositionWrapper = class _GeopositionWrapper extends core.Object {
    static ['_#new#tearOff'](_ptr) {
      return new html$._GeopositionWrapper.new(_ptr);
    }
    get coords() {
      return this[S$1._ptr].coords;
    }
    get timestamp() {
      return this[S$1._ptr].timestamp;
    }
  };
  (html$._GeopositionWrapper.new = function(_ptr) {
    this[S$1._ptr] = _ptr;
    ;
  }).prototype = html$._GeopositionWrapper.prototype;
  dart.addRtiResources(html$._GeopositionWrapper, ["html|_GeopositionWrapper", "html|Geoposition", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setGetterSignature(html$._GeopositionWrapper, () => dart.global.Object.setPrototypeOf({
    coords: T$5.Coordinates(),
    [S$.$coords]: T$5.Coordinates(),
    timestamp: T$.int(),
    [S$.$timestamp]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._GeopositionWrapper))));
  dart.setLibraryUri(html$._GeopositionWrapper, I[167]);
  dart.setFieldSignature(html$._GeopositionWrapper, () => dart.global.Object.setPrototypeOf({[S$1._ptr]: {type: T$.dynamic(), isConst: false, isFinal: false}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._GeopositionWrapper))));
  dart.defineExtensionAccessors(html$._GeopositionWrapper, ['coords', 'timestamp']);
  html$.Geoposition = class Geoposition extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Geoposition.__();
    }
    get [S$.$coords]() {
      return this.coords;
    }
    get [S$.$timestamp]() {
      return this.timestamp;
    }
  };
  dart.addRtiResources(html$.Geoposition, ["html|Geoposition"]);
  dart.setStaticMethodSignature(html$.Geoposition, () => ['__']);
  dart.setGetterSignature(html$.Geoposition, () => dart.global.Object.setPrototypeOf({
    [S$.$coords]: T$5.CoordinatesN(),
    [S$.$timestamp]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Geoposition))));
  dart.setLibraryUri(html$.Geoposition, I[167]);
  dart.registerExtension("Position", html$.Geoposition);
  dart.registerExtension("GeolocationPosition", html$.Geoposition);
  html$.GlobalEventHandlers = class GlobalEventHandlers extends core.Object {
    static ['_#_#tearOff']() {
      return html$.GlobalEventHandlers.__();
    }
    get onAbort() {
      return html$.GlobalEventHandlers.abortEvent.forTarget(this);
    }
    get onBlur() {
      return html$.GlobalEventHandlers.blurEvent.forTarget(this);
    }
    get onCanPlay() {
      return html$.GlobalEventHandlers.canPlayEvent.forTarget(this);
    }
    get onCanPlayThrough() {
      return html$.GlobalEventHandlers.canPlayThroughEvent.forTarget(this);
    }
    get onChange() {
      return html$.GlobalEventHandlers.changeEvent.forTarget(this);
    }
    get onClick() {
      return html$.GlobalEventHandlers.clickEvent.forTarget(this);
    }
    get onContextMenu() {
      return html$.GlobalEventHandlers.contextMenuEvent.forTarget(this);
    }
    get onDoubleClick() {
      return html$.GlobalEventHandlers.doubleClickEvent.forTarget(this);
    }
    get onDrag() {
      return html$.GlobalEventHandlers.dragEvent.forTarget(this);
    }
    get onDragEnd() {
      return html$.GlobalEventHandlers.dragEndEvent.forTarget(this);
    }
    get onDragEnter() {
      return html$.GlobalEventHandlers.dragEnterEvent.forTarget(this);
    }
    get onDragLeave() {
      return html$.GlobalEventHandlers.dragLeaveEvent.forTarget(this);
    }
    get onDragOver() {
      return html$.GlobalEventHandlers.dragOverEvent.forTarget(this);
    }
    get onDragStart() {
      return html$.GlobalEventHandlers.dragStartEvent.forTarget(this);
    }
    get onDrop() {
      return html$.GlobalEventHandlers.dropEvent.forTarget(this);
    }
    get onDurationChange() {
      return html$.GlobalEventHandlers.durationChangeEvent.forTarget(this);
    }
    get onEmptied() {
      return html$.GlobalEventHandlers.emptiedEvent.forTarget(this);
    }
    get onEnded() {
      return html$.GlobalEventHandlers.endedEvent.forTarget(this);
    }
    get onError() {
      return html$.GlobalEventHandlers.errorEvent.forTarget(this);
    }
    get onFocus() {
      return html$.GlobalEventHandlers.focusEvent.forTarget(this);
    }
    get onInput() {
      return html$.GlobalEventHandlers.inputEvent.forTarget(this);
    }
    get onInvalid() {
      return html$.GlobalEventHandlers.invalidEvent.forTarget(this);
    }
    get onKeyDown() {
      return html$.GlobalEventHandlers.keyDownEvent.forTarget(this);
    }
    get onKeyPress() {
      return html$.GlobalEventHandlers.keyPressEvent.forTarget(this);
    }
    get onKeyUp() {
      return html$.GlobalEventHandlers.keyUpEvent.forTarget(this);
    }
    get onLoad() {
      return html$.GlobalEventHandlers.loadEvent.forTarget(this);
    }
    get onLoadedData() {
      return html$.GlobalEventHandlers.loadedDataEvent.forTarget(this);
    }
    get onLoadedMetadata() {
      return html$.GlobalEventHandlers.loadedMetadataEvent.forTarget(this);
    }
    get onMouseDown() {
      return html$.GlobalEventHandlers.mouseDownEvent.forTarget(this);
    }
    get onMouseEnter() {
      return html$.GlobalEventHandlers.mouseEnterEvent.forTarget(this);
    }
    get onMouseLeave() {
      return html$.GlobalEventHandlers.mouseLeaveEvent.forTarget(this);
    }
    get onMouseMove() {
      return html$.GlobalEventHandlers.mouseMoveEvent.forTarget(this);
    }
    get onMouseOut() {
      return html$.GlobalEventHandlers.mouseOutEvent.forTarget(this);
    }
    get onMouseOver() {
      return html$.GlobalEventHandlers.mouseOverEvent.forTarget(this);
    }
    get onMouseUp() {
      return html$.GlobalEventHandlers.mouseUpEvent.forTarget(this);
    }
    get onMouseWheel() {
      return html$.GlobalEventHandlers.mouseWheelEvent.forTarget(this);
    }
    get onPause() {
      return html$.GlobalEventHandlers.pauseEvent.forTarget(this);
    }
    get onPlay() {
      return html$.GlobalEventHandlers.playEvent.forTarget(this);
    }
    get onPlaying() {
      return html$.GlobalEventHandlers.playingEvent.forTarget(this);
    }
    get onRateChange() {
      return html$.GlobalEventHandlers.rateChangeEvent.forTarget(this);
    }
    get onReset() {
      return html$.GlobalEventHandlers.resetEvent.forTarget(this);
    }
    get onResize() {
      return html$.GlobalEventHandlers.resizeEvent.forTarget(this);
    }
    get onScroll() {
      return html$.GlobalEventHandlers.scrollEvent.forTarget(this);
    }
    get onSeeked() {
      return html$.GlobalEventHandlers.seekedEvent.forTarget(this);
    }
    get onSeeking() {
      return html$.GlobalEventHandlers.seekingEvent.forTarget(this);
    }
    get onSelect() {
      return html$.GlobalEventHandlers.selectEvent.forTarget(this);
    }
    get onStalled() {
      return html$.GlobalEventHandlers.stalledEvent.forTarget(this);
    }
    get onSubmit() {
      return html$.GlobalEventHandlers.submitEvent.forTarget(this);
    }
    get onSuspend() {
      return html$.GlobalEventHandlers.suspendEvent.forTarget(this);
    }
    get onTimeUpdate() {
      return html$.GlobalEventHandlers.timeUpdateEvent.forTarget(this);
    }
    get onTouchCancel() {
      return html$.GlobalEventHandlers.touchCancelEvent.forTarget(this);
    }
    get onTouchEnd() {
      return html$.GlobalEventHandlers.touchEndEvent.forTarget(this);
    }
    get onTouchMove() {
      return html$.GlobalEventHandlers.touchMoveEvent.forTarget(this);
    }
    get onTouchStart() {
      return html$.GlobalEventHandlers.touchStartEvent.forTarget(this);
    }
    get onVolumeChange() {
      return html$.GlobalEventHandlers.volumeChangeEvent.forTarget(this);
    }
    get onWaiting() {
      return html$.GlobalEventHandlers.waitingEvent.forTarget(this);
    }
    get onWheel() {
      return html$.GlobalEventHandlers.wheelEvent.forTarget(this);
    }
  };
  (html$.GlobalEventHandlers[dart.mixinNew] = function() {
  }).prototype = html$.GlobalEventHandlers.prototype;
  dart.addRtiResources(html$.GlobalEventHandlers, ["html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.GlobalEventHandlers, () => ['__']);
  dart.setGetterSignature(html$.GlobalEventHandlers, () => dart.global.Object.setPrototypeOf({
    onAbort: T$3.StreamOfEvent(),
    [S.$onAbort]: T$3.StreamOfEvent(),
    onBlur: T$3.StreamOfEvent(),
    [S.$onBlur]: T$3.StreamOfEvent(),
    onCanPlay: T$3.StreamOfEvent(),
    [S.$onCanPlay]: T$3.StreamOfEvent(),
    onCanPlayThrough: T$3.StreamOfEvent(),
    [S.$onCanPlayThrough]: T$3.StreamOfEvent(),
    onChange: T$3.StreamOfEvent(),
    [S.$onChange]: T$3.StreamOfEvent(),
    onClick: T$5.StreamOfMouseEvent(),
    [S.$onClick]: T$5.StreamOfMouseEvent(),
    onContextMenu: T$5.StreamOfMouseEvent(),
    [S.$onContextMenu]: T$5.StreamOfMouseEvent(),
    onDoubleClick: T$3.StreamOfEvent(),
    [S.$onDoubleClick]: T$3.StreamOfEvent(),
    onDrag: T$5.StreamOfMouseEvent(),
    [S.$onDrag]: T$5.StreamOfMouseEvent(),
    onDragEnd: T$5.StreamOfMouseEvent(),
    [S.$onDragEnd]: T$5.StreamOfMouseEvent(),
    onDragEnter: T$5.StreamOfMouseEvent(),
    [S.$onDragEnter]: T$5.StreamOfMouseEvent(),
    onDragLeave: T$5.StreamOfMouseEvent(),
    [S.$onDragLeave]: T$5.StreamOfMouseEvent(),
    onDragOver: T$5.StreamOfMouseEvent(),
    [S.$onDragOver]: T$5.StreamOfMouseEvent(),
    onDragStart: T$5.StreamOfMouseEvent(),
    [S.$onDragStart]: T$5.StreamOfMouseEvent(),
    onDrop: T$5.StreamOfMouseEvent(),
    [S.$onDrop]: T$5.StreamOfMouseEvent(),
    onDurationChange: T$3.StreamOfEvent(),
    [S.$onDurationChange]: T$3.StreamOfEvent(),
    onEmptied: T$3.StreamOfEvent(),
    [S.$onEmptied]: T$3.StreamOfEvent(),
    onEnded: T$3.StreamOfEvent(),
    [S.$onEnded]: T$3.StreamOfEvent(),
    onError: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    onFocus: T$3.StreamOfEvent(),
    [S.$onFocus]: T$3.StreamOfEvent(),
    onInput: T$3.StreamOfEvent(),
    [S.$onInput]: T$3.StreamOfEvent(),
    onInvalid: T$3.StreamOfEvent(),
    [S.$onInvalid]: T$3.StreamOfEvent(),
    onKeyDown: T$5.StreamOfKeyboardEvent(),
    [S.$onKeyDown]: T$5.StreamOfKeyboardEvent(),
    onKeyPress: T$5.StreamOfKeyboardEvent(),
    [S.$onKeyPress]: T$5.StreamOfKeyboardEvent(),
    onKeyUp: T$5.StreamOfKeyboardEvent(),
    [S.$onKeyUp]: T$5.StreamOfKeyboardEvent(),
    onLoad: T$3.StreamOfEvent(),
    [S.$onLoad]: T$3.StreamOfEvent(),
    onLoadedData: T$3.StreamOfEvent(),
    [S.$onLoadedData]: T$3.StreamOfEvent(),
    onLoadedMetadata: T$3.StreamOfEvent(),
    [S.$onLoadedMetadata]: T$3.StreamOfEvent(),
    onMouseDown: T$5.StreamOfMouseEvent(),
    [S.$onMouseDown]: T$5.StreamOfMouseEvent(),
    onMouseEnter: T$5.StreamOfMouseEvent(),
    [S.$onMouseEnter]: T$5.StreamOfMouseEvent(),
    onMouseLeave: T$5.StreamOfMouseEvent(),
    [S.$onMouseLeave]: T$5.StreamOfMouseEvent(),
    onMouseMove: T$5.StreamOfMouseEvent(),
    [S.$onMouseMove]: T$5.StreamOfMouseEvent(),
    onMouseOut: T$5.StreamOfMouseEvent(),
    [S$.$onMouseOut]: T$5.StreamOfMouseEvent(),
    onMouseOver: T$5.StreamOfMouseEvent(),
    [S$.$onMouseOver]: T$5.StreamOfMouseEvent(),
    onMouseUp: T$5.StreamOfMouseEvent(),
    [S$.$onMouseUp]: T$5.StreamOfMouseEvent(),
    onMouseWheel: T$5.StreamOfWheelEvent(),
    [S$.$onMouseWheel]: T$5.StreamOfWheelEvent(),
    onPause: T$3.StreamOfEvent(),
    [S$.$onPause]: T$3.StreamOfEvent(),
    onPlay: T$3.StreamOfEvent(),
    [S$.$onPlay]: T$3.StreamOfEvent(),
    onPlaying: T$3.StreamOfEvent(),
    [S$.$onPlaying]: T$3.StreamOfEvent(),
    onRateChange: T$3.StreamOfEvent(),
    [S$.$onRateChange]: T$3.StreamOfEvent(),
    onReset: T$3.StreamOfEvent(),
    [S$.$onReset]: T$3.StreamOfEvent(),
    onResize: T$3.StreamOfEvent(),
    [S$.$onResize]: T$3.StreamOfEvent(),
    onScroll: T$3.StreamOfEvent(),
    [S$.$onScroll]: T$3.StreamOfEvent(),
    onSeeked: T$3.StreamOfEvent(),
    [S$.$onSeeked]: T$3.StreamOfEvent(),
    onSeeking: T$3.StreamOfEvent(),
    [S$.$onSeeking]: T$3.StreamOfEvent(),
    onSelect: T$3.StreamOfEvent(),
    [S$.$onSelect]: T$3.StreamOfEvent(),
    onStalled: T$3.StreamOfEvent(),
    [S$.$onStalled]: T$3.StreamOfEvent(),
    onSubmit: T$3.StreamOfEvent(),
    [S$.$onSubmit]: T$3.StreamOfEvent(),
    onSuspend: T$3.StreamOfEvent(),
    [S$.$onSuspend]: T$3.StreamOfEvent(),
    onTimeUpdate: T$3.StreamOfEvent(),
    [S$.$onTimeUpdate]: T$3.StreamOfEvent(),
    onTouchCancel: T$5.StreamOfTouchEvent(),
    [S$.$onTouchCancel]: T$5.StreamOfTouchEvent(),
    onTouchEnd: T$5.StreamOfTouchEvent(),
    [S$.$onTouchEnd]: T$5.StreamOfTouchEvent(),
    onTouchMove: T$5.StreamOfTouchEvent(),
    [S$.$onTouchMove]: T$5.StreamOfTouchEvent(),
    onTouchStart: T$5.StreamOfTouchEvent(),
    [S$.$onTouchStart]: T$5.StreamOfTouchEvent(),
    onVolumeChange: T$3.StreamOfEvent(),
    [S$.$onVolumeChange]: T$3.StreamOfEvent(),
    onWaiting: T$3.StreamOfEvent(),
    [S$.$onWaiting]: T$3.StreamOfEvent(),
    onWheel: T$5.StreamOfWheelEvent(),
    [S$.$onWheel]: T$5.StreamOfWheelEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.GlobalEventHandlers))));
  dart.setLibraryUri(html$.GlobalEventHandlers, I[167]);
  dart.setStaticFieldSignature(html$.GlobalEventHandlers, () => ['abortEvent', 'blurEvent', 'canPlayEvent', 'canPlayThroughEvent', 'changeEvent', 'clickEvent', 'contextMenuEvent', 'doubleClickEvent', 'dragEvent', 'dragEndEvent', 'dragEnterEvent', 'dragLeaveEvent', 'dragOverEvent', 'dragStartEvent', 'dropEvent', 'durationChangeEvent', 'emptiedEvent', 'endedEvent', 'errorEvent', 'focusEvent', 'inputEvent', 'invalidEvent', 'keyDownEvent', 'keyPressEvent', 'keyUpEvent', 'loadEvent', 'loadedDataEvent', 'loadedMetadataEvent', 'mouseDownEvent', 'mouseEnterEvent', 'mouseLeaveEvent', 'mouseMoveEvent', 'mouseOutEvent', 'mouseOverEvent', 'mouseUpEvent', 'mouseWheelEvent', 'pauseEvent', 'playEvent', 'playingEvent', 'rateChangeEvent', 'resetEvent', 'resizeEvent', 'scrollEvent', 'seekedEvent', 'seekingEvent', 'selectEvent', 'stalledEvent', 'submitEvent', 'suspendEvent', 'timeUpdateEvent', 'touchCancelEvent', 'touchEndEvent', 'touchMoveEvent', 'touchStartEvent', 'volumeChangeEvent', 'waitingEvent', 'wheelEvent']);
  dart.defineExtensionAccessors(html$.GlobalEventHandlers, [
    'onAbort',
    'onBlur',
    'onCanPlay',
    'onCanPlayThrough',
    'onChange',
    'onClick',
    'onContextMenu',
    'onDoubleClick',
    'onDrag',
    'onDragEnd',
    'onDragEnter',
    'onDragLeave',
    'onDragOver',
    'onDragStart',
    'onDrop',
    'onDurationChange',
    'onEmptied',
    'onEnded',
    'onError',
    'onFocus',
    'onInput',
    'onInvalid',
    'onKeyDown',
    'onKeyPress',
    'onKeyUp',
    'onLoad',
    'onLoadedData',
    'onLoadedMetadata',
    'onMouseDown',
    'onMouseEnter',
    'onMouseLeave',
    'onMouseMove',
    'onMouseOut',
    'onMouseOver',
    'onMouseUp',
    'onMouseWheel',
    'onPause',
    'onPlay',
    'onPlaying',
    'onRateChange',
    'onReset',
    'onResize',
    'onScroll',
    'onSeeked',
    'onSeeking',
    'onSelect',
    'onStalled',
    'onSubmit',
    'onSuspend',
    'onTimeUpdate',
    'onTouchCancel',
    'onTouchEnd',
    'onTouchMove',
    'onTouchStart',
    'onVolumeChange',
    'onWaiting',
    'onWheel'
  ]);
  dart.defineLazy(html$.GlobalEventHandlers, {
    /*html$.GlobalEventHandlers.abortEvent*/get abortEvent() {
      return C[265] || CT.C265;
    },
    /*html$.GlobalEventHandlers.blurEvent*/get blurEvent() {
      return C[284] || CT.C284;
    },
    /*html$.GlobalEventHandlers.canPlayEvent*/get canPlayEvent() {
      return C[285] || CT.C285;
    },
    /*html$.GlobalEventHandlers.canPlayThroughEvent*/get canPlayThroughEvent() {
      return C[286] || CT.C286;
    },
    /*html$.GlobalEventHandlers.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    },
    /*html$.GlobalEventHandlers.clickEvent*/get clickEvent() {
      return C[288] || CT.C288;
    },
    /*html$.GlobalEventHandlers.contextMenuEvent*/get contextMenuEvent() {
      return C[289] || CT.C289;
    },
    /*html$.GlobalEventHandlers.doubleClickEvent*/get doubleClickEvent() {
      return C[292] || CT.C292;
    },
    /*html$.GlobalEventHandlers.dragEvent*/get dragEvent() {
      return C[293] || CT.C293;
    },
    /*html$.GlobalEventHandlers.dragEndEvent*/get dragEndEvent() {
      return C[294] || CT.C294;
    },
    /*html$.GlobalEventHandlers.dragEnterEvent*/get dragEnterEvent() {
      return C[295] || CT.C295;
    },
    /*html$.GlobalEventHandlers.dragLeaveEvent*/get dragLeaveEvent() {
      return C[296] || CT.C296;
    },
    /*html$.GlobalEventHandlers.dragOverEvent*/get dragOverEvent() {
      return C[297] || CT.C297;
    },
    /*html$.GlobalEventHandlers.dragStartEvent*/get dragStartEvent() {
      return C[298] || CT.C298;
    },
    /*html$.GlobalEventHandlers.dropEvent*/get dropEvent() {
      return C[299] || CT.C299;
    },
    /*html$.GlobalEventHandlers.durationChangeEvent*/get durationChangeEvent() {
      return C[300] || CT.C300;
    },
    /*html$.GlobalEventHandlers.emptiedEvent*/get emptiedEvent() {
      return C[301] || CT.C301;
    },
    /*html$.GlobalEventHandlers.endedEvent*/get endedEvent() {
      return C[302] || CT.C302;
    },
    /*html$.GlobalEventHandlers.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.GlobalEventHandlers.focusEvent*/get focusEvent() {
      return C[303] || CT.C303;
    },
    /*html$.GlobalEventHandlers.inputEvent*/get inputEvent() {
      return C[304] || CT.C304;
    },
    /*html$.GlobalEventHandlers.invalidEvent*/get invalidEvent() {
      return C[305] || CT.C305;
    },
    /*html$.GlobalEventHandlers.keyDownEvent*/get keyDownEvent() {
      return C[306] || CT.C306;
    },
    /*html$.GlobalEventHandlers.keyPressEvent*/get keyPressEvent() {
      return C[307] || CT.C307;
    },
    /*html$.GlobalEventHandlers.keyUpEvent*/get keyUpEvent() {
      return C[308] || CT.C308;
    },
    /*html$.GlobalEventHandlers.loadEvent*/get loadEvent() {
      return C[309] || CT.C309;
    },
    /*html$.GlobalEventHandlers.loadedDataEvent*/get loadedDataEvent() {
      return C[310] || CT.C310;
    },
    /*html$.GlobalEventHandlers.loadedMetadataEvent*/get loadedMetadataEvent() {
      return C[311] || CT.C311;
    },
    /*html$.GlobalEventHandlers.mouseDownEvent*/get mouseDownEvent() {
      return C[312] || CT.C312;
    },
    /*html$.GlobalEventHandlers.mouseEnterEvent*/get mouseEnterEvent() {
      return C[313] || CT.C313;
    },
    /*html$.GlobalEventHandlers.mouseLeaveEvent*/get mouseLeaveEvent() {
      return C[314] || CT.C314;
    },
    /*html$.GlobalEventHandlers.mouseMoveEvent*/get mouseMoveEvent() {
      return C[315] || CT.C315;
    },
    /*html$.GlobalEventHandlers.mouseOutEvent*/get mouseOutEvent() {
      return C[316] || CT.C316;
    },
    /*html$.GlobalEventHandlers.mouseOverEvent*/get mouseOverEvent() {
      return C[317] || CT.C317;
    },
    /*html$.GlobalEventHandlers.mouseUpEvent*/get mouseUpEvent() {
      return C[318] || CT.C318;
    },
    /*html$.GlobalEventHandlers.mouseWheelEvent*/get mouseWheelEvent() {
      return C[393] || CT.C393;
    },
    /*html$.GlobalEventHandlers.pauseEvent*/get pauseEvent() {
      return C[320] || CT.C320;
    },
    /*html$.GlobalEventHandlers.playEvent*/get playEvent() {
      return C[321] || CT.C321;
    },
    /*html$.GlobalEventHandlers.playingEvent*/get playingEvent() {
      return C[322] || CT.C322;
    },
    /*html$.GlobalEventHandlers.rateChangeEvent*/get rateChangeEvent() {
      return C[323] || CT.C323;
    },
    /*html$.GlobalEventHandlers.resetEvent*/get resetEvent() {
      return C[324] || CT.C324;
    },
    /*html$.GlobalEventHandlers.resizeEvent*/get resizeEvent() {
      return C[325] || CT.C325;
    },
    /*html$.GlobalEventHandlers.scrollEvent*/get scrollEvent() {
      return C[326] || CT.C326;
    },
    /*html$.GlobalEventHandlers.seekedEvent*/get seekedEvent() {
      return C[328] || CT.C328;
    },
    /*html$.GlobalEventHandlers.seekingEvent*/get seekingEvent() {
      return C[329] || CT.C329;
    },
    /*html$.GlobalEventHandlers.selectEvent*/get selectEvent() {
      return C[330] || CT.C330;
    },
    /*html$.GlobalEventHandlers.stalledEvent*/get stalledEvent() {
      return C[332] || CT.C332;
    },
    /*html$.GlobalEventHandlers.submitEvent*/get submitEvent() {
      return C[333] || CT.C333;
    },
    /*html$.GlobalEventHandlers.suspendEvent*/get suspendEvent() {
      return C[334] || CT.C334;
    },
    /*html$.GlobalEventHandlers.timeUpdateEvent*/get timeUpdateEvent() {
      return C[335] || CT.C335;
    },
    /*html$.GlobalEventHandlers.touchCancelEvent*/get touchCancelEvent() {
      return C[336] || CT.C336;
    },
    /*html$.GlobalEventHandlers.touchEndEvent*/get touchEndEvent() {
      return C[337] || CT.C337;
    },
    /*html$.GlobalEventHandlers.touchMoveEvent*/get touchMoveEvent() {
      return C[340] || CT.C340;
    },
    /*html$.GlobalEventHandlers.touchStartEvent*/get touchStartEvent() {
      return C[341] || CT.C341;
    },
    /*html$.GlobalEventHandlers.volumeChangeEvent*/get volumeChangeEvent() {
      return C[342] || CT.C342;
    },
    /*html$.GlobalEventHandlers.waitingEvent*/get waitingEvent() {
      return C[343] || CT.C343;
    },
    /*html$.GlobalEventHandlers.wheelEvent*/get wheelEvent() {
      return C[346] || CT.C346;
    }
  }, false);
  html$.Gyroscope = class Gyroscope$ extends html$.Sensor {
    static ['_#_#tearOff']() {
      return html$.Gyroscope.__();
    }
    static new(sensorOptions = null) {
      if (sensorOptions != null) {
        let sensorOptions_1 = html_common.convertDartToNative_Dictionary(sensorOptions);
        return html$.Gyroscope._create_1(sensorOptions_1);
      }
      return html$.Gyroscope._create_2();
    }
    static ['_#new#tearOff'](sensorOptions = null) {
      return html$.Gyroscope.new(sensorOptions);
    }
    static _create_1(sensorOptions) {
      return new Gyroscope(sensorOptions);
    }
    static _create_2() {
      return new Gyroscope();
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$z]() {
      return this.z;
    }
  };
  dart.addRtiResources(html$.Gyroscope, ["html|Gyroscope"]);
  dart.setStaticMethodSignature(html$.Gyroscope, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.Gyroscope, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Gyroscope))));
  dart.setLibraryUri(html$.Gyroscope, I[167]);
  dart.registerExtension("Gyroscope", html$.Gyroscope);
  html$.HRElement = class HRElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.HRElement.__();
    }
    static new() {
      return html$.document.createElement("hr");
    }
    static ['_#new#tearOff']() {
      return html$.HRElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.HRElement.created();
    }
    get [S$0.$color]() {
      return this.color;
    }
    set [S$0.$color](value) {
      this.color = value;
    }
  };
  (html$.HRElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.HRElement).created.call(this);
    ;
  }).prototype = html$.HRElement.prototype;
  dart.addRtiResources(html$.HRElement, ["html|HRElement"]);
  dart.setStaticMethodSignature(html$.HRElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.HRElement, () => dart.global.Object.setPrototypeOf({[S$0.$color]: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.HRElement))));
  dart.setSetterSignature(html$.HRElement, () => dart.global.Object.setPrototypeOf({[S$0.$color]: T$.String()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.HRElement))));
  dart.setLibraryUri(html$.HRElement, I[167]);
  dart.registerExtension("HTMLHRElement", html$.HRElement);
  html$.HashChangeEvent = class HashChangeEvent$ extends html$.Event {
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 17471, 34, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 17472, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 17473, 12, "cancelable");
      let oldUrl = opts && 'oldUrl' in opts ? opts.oldUrl : null;
      let newUrl = opts && 'newUrl' in opts ? opts.newUrl : null;
      let options = new (G.IdentityMapOfString$ObjectN()).from(["canBubble", canBubble, "cancelable", cancelable, "oldURL", oldUrl, "newURL", newUrl]);
      return new HashChangeEvent(type, html_common.convertDartToNative_Dictionary(options));
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 17471, 34, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 17472, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 17473, 12, "cancelable");
      let oldUrl = opts && 'oldUrl' in opts ? opts.oldUrl : null;
      let newUrl = opts && 'newUrl' in opts ? opts.newUrl : null;
      return html$.HashChangeEvent.new(type, {canBubble: canBubble, cancelable: cancelable, oldUrl: oldUrl, newUrl: newUrl});
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 17486, 36, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.HashChangeEvent._create_1(type, eventInitDict_1);
      }
      return html$.HashChangeEvent._create_2(type);
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 17486, 36, "type");
      return html$.HashChangeEvent.__(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new HashChangeEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new HashChangeEvent(type);
    }
    static get supported() {
      return html_common.Device.isEventTypeSupported("HashChangeEvent");
    }
    get [S$1.$newUrl]() {
      return this.newURL;
    }
    get [S$1.$oldUrl]() {
      return this.oldURL;
    }
  };
  dart.addRtiResources(html$.HashChangeEvent, ["html|HashChangeEvent"]);
  dart.setStaticMethodSignature(html$.HashChangeEvent, () => ['new', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.HashChangeEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$newUrl]: T$.StringN(),
    [S$1.$oldUrl]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.HashChangeEvent))));
  dart.setStaticGetterSignature(html$.HashChangeEvent, () => ['supported']);
  dart.setLibraryUri(html$.HashChangeEvent, I[167]);
  dart.registerExtension("HashChangeEvent", html$.HashChangeEvent);
  html$.HeadElement = class HeadElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.HeadElement.__();
    }
    static new() {
      return html$.document.createElement("head");
    }
    static ['_#new#tearOff']() {
      return html$.HeadElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.HeadElement.created();
    }
  };
  (html$.HeadElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.HeadElement).created.call(this);
    ;
  }).prototype = html$.HeadElement.prototype;
  dart.addRtiResources(html$.HeadElement, ["html|HeadElement"]);
  dart.setStaticMethodSignature(html$.HeadElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.HeadElement, I[167]);
  dart.registerExtension("HTMLHeadElement", html$.HeadElement);
  html$.Headers = class Headers$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Headers.__();
    }
    static new(init = null) {
      if (init != null) {
        return html$.Headers._create_1(init);
      }
      return html$.Headers._create_2();
    }
    static ['_#new#tearOff'](init = null) {
      return html$.Headers.new(init);
    }
    static _create_1(init) {
      return new Headers(init);
    }
    static _create_2() {
      return new Headers();
    }
  };
  dart.addRtiResources(html$.Headers, ["html|Headers"]);
  dart.setStaticMethodSignature(html$.Headers, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.Headers, I[167]);
  dart.registerExtension("Headers", html$.Headers);
  html$.HeadingElement = class HeadingElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.HeadingElement.__();
    }
    static h1() {
      return html$.document.createElement("h1");
    }
    static ['_#h1#tearOff']() {
      return html$.HeadingElement.h1();
    }
    static h2() {
      return html$.document.createElement("h2");
    }
    static ['_#h2#tearOff']() {
      return html$.HeadingElement.h2();
    }
    static h3() {
      return html$.document.createElement("h3");
    }
    static ['_#h3#tearOff']() {
      return html$.HeadingElement.h3();
    }
    static h4() {
      return html$.document.createElement("h4");
    }
    static ['_#h4#tearOff']() {
      return html$.HeadingElement.h4();
    }
    static h5() {
      return html$.document.createElement("h5");
    }
    static ['_#h5#tearOff']() {
      return html$.HeadingElement.h5();
    }
    static h6() {
      return html$.document.createElement("h6");
    }
    static ['_#h6#tearOff']() {
      return html$.HeadingElement.h6();
    }
    static ['_#created#tearOff']() {
      return new html$.HeadingElement.created();
    }
  };
  (html$.HeadingElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.HeadingElement).created.call(this);
    ;
  }).prototype = html$.HeadingElement.prototype;
  dart.addRtiResources(html$.HeadingElement, ["html|HeadingElement"]);
  dart.setStaticMethodSignature(html$.HeadingElement, () => ['__', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6']);
  dart.setLibraryUri(html$.HeadingElement, I[167]);
  dart.registerExtension("HTMLHeadingElement", html$.HeadingElement);
  html$.History = class History extends _interceptors.JavaScriptObject {
    static get supportsState() {
      return !!window.history.pushState;
    }
    static ['_#_#tearOff']() {
      return html$.History.__();
    }
    get [$length]() {
      return this.length;
    }
    get [S$1.$scrollRestoration]() {
      return this.scrollRestoration;
    }
    set [S$1.$scrollRestoration](value) {
      this.scrollRestoration = value;
    }
    get [S$.$state]() {
      return html_common.convertNativeToDart_SerializedScriptValue(this[S$1._get_state]);
    }
    get [S$1._get_state]() {
      return this.state;
    }
    [S$1.$back](...args) {
      return this.back.apply(this, args);
    }
    [S$1.$forward](...args) {
      return this.forward.apply(this, args);
    }
    [S$1.$go](...args) {
      return this.go.apply(this, args);
    }
    [S$1.$pushState](data, title, url) {
      if (title == null) dart.nullFailed(I[166], 17647, 57, "title");
      let data_1 = html_common.convertDartToNative_SerializedScriptValue(data);
      this[S$1._pushState_1](data_1, title, url);
      return;
    }
    [S$1._pushState_1](...args) {
      return this.pushState.apply(this, args);
    }
    [S$1.$replaceState](data, title, url) {
      if (title == null) dart.nullFailed(I[166], 17664, 60, "title");
      let data_1 = html_common.convertDartToNative_SerializedScriptValue(data);
      this[S$1._replaceState_1](data_1, title, url);
      return;
    }
    [S$1._replaceState_1](...args) {
      return this.replaceState.apply(this, args);
    }
  };
  dart.addRtiResources(html$.History, ["html|History", "html|HistoryBase"]);
  dart.setMethodSignature(html$.History, () => dart.global.Object.setPrototypeOf({
    [S$1.$back]: T$.VoidTovoid(),
    [S$1.$forward]: T$.VoidTovoid(),
    [S$1.$go]: T$4.intNTovoid$1(),
    [S$1.$pushState]: T$5.dynamicAndStringAndStringNTovoid(),
    [S$1._pushState_1]: T$0.dynamicAnddynamicAnddynamicTovoid(),
    [S$1.$replaceState]: T$5.dynamicAndStringAndStringNTovoid(),
    [S$1._replaceState_1]: T$0.dynamicAnddynamicAnddynamicTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.History))));
  dart.setStaticMethodSignature(html$.History, () => ['__']);
  dart.setGetterSignature(html$.History, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.int(),
    [S$1.$scrollRestoration]: T$.StringN(),
    [S$.$state]: T$.dynamic(),
    [S$1._get_state]: T$.dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.History))));
  dart.setSetterSignature(html$.History, () => dart.global.Object.setPrototypeOf({[S$1.$scrollRestoration]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.History))));
  dart.setStaticGetterSignature(html$.History, () => ['supportsState']);
  dart.setLibraryUri(html$.History, I[167]);
  dart.registerExtension("History", html$.History);
  const JavaScriptObject_ListBase$36$1 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$1.new = function() {
    G$.ListBaseOfNode().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$1).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$1.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$1, G$.ListBaseOfNode());
  const JavaScriptObject_ImmutableListMixin$36$1 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$1 {};
  (JavaScriptObject_ImmutableListMixin$36$1.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$1).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$1.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$1, G$.ImmutableListMixinOfNode());
  html$.HtmlCollection = class HtmlCollection extends JavaScriptObject_ImmutableListMixin$36$1 {
    static ['_#_#tearOff']() {
      return html$.HtmlCollection.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 17692, 24, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 17698, 25, "index");
      T$5.Node()[_as](value);
      if (value == null) dart.nullFailed(I[166], 17698, 37, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 17704, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 17732, 22, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [S$1.$namedItem](...args) {
      return this.namedItem.apply(this, args);
    }
  };
  dart.addRtiResources(html$.HtmlCollection, ["html|HtmlCollection", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.HtmlCollection, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$5.intToNode(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T$5.intNToNodeN(),
    [S$1.$namedItem]: T$4.StringToObjectN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.HtmlCollection))));
  dart.setStaticMethodSignature(html$.HtmlCollection, () => ['__']);
  dart.setGetterSignature(html$.HtmlCollection, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.HtmlCollection))));
  dart.setSetterSignature(html$.HtmlCollection, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.HtmlCollection))));
  dart.setLibraryUri(html$.HtmlCollection, I[167]);
  dart.registerExtension("HTMLCollection", html$.HtmlCollection);
  html$.HtmlDocument = class HtmlDocument extends html$.Document {
    static ['_#_#tearOff']() {
      return html$.HtmlDocument.__();
    }
    get [S$1.$body]() {
      return this.body;
    }
    set [S$1.$body](value) {
      this.body = value;
    }
    [S$1.$caretRangeFromPoint](x, y) {
      return this[S$1._caretRangeFromPoint](x, y);
    }
    [S$1.$elementFromPoint](x, y) {
      if (x == null) dart.nullFailed(I[166], 17761, 33, "x");
      if (y == null) dart.nullFailed(I[166], 17761, 40, "y");
      return this[S$1._elementFromPoint](x, y);
    }
    get [S.$head]() {
      return this[S$1._head$1];
    }
    get [S$1.$lastModified]() {
      return this[S$1._lastModified];
    }
    get [S$1.$preferredStylesheetSet]() {
      return this[S$1._preferredStylesheetSet];
    }
    get [S$1.$referrer]() {
      return this[S$1._referrer];
    }
    get [S$1.$selectedStylesheetSet]() {
      return this[S$1._selectedStylesheetSet];
    }
    set [S$1.$selectedStylesheetSet](value) {
      this[S$1._selectedStylesheetSet] = value;
    }
    get [S$1.$styleSheets]() {
      return this[S$1._styleSheets];
    }
    get [S.$title]() {
      return this[S$1._title];
    }
    set [S.$title](value) {
      if (value == null) dart.nullFailed(I[166], 17782, 20, "value");
      this[S$1._title] = value;
    }
    [S$1.$exitFullscreen]() {
      this[S$1._webkitExitFullscreen]();
    }
    static _determineVisibilityChangeEventType(e) {
      if (e == null) dart.nullFailed(I[166], 17817, 65, "e");
      if (typeof e.hidden !== "undefined") {
        return "visibilitychange";
      } else if (typeof e.mozHidden !== "undefined") {
        return "mozvisibilitychange";
      } else if (typeof e.msHidden !== "undefined") {
        return "msvisibilitychange";
      } else if (typeof e.webkitHidden !== "undefined") {
        return "webkitvisibilitychange";
      }
      return "visibilitychange";
    }
    get [S$1.$onVisibilityChange]() {
      return html$.HtmlDocument.visibilityChangeEvent.forTarget(this);
    }
    [S$1.$createElementUpgrader](type, opts) {
      if (type == null) dart.nullFailed(I[166], 17844, 46, "type");
      let extendsTag = opts && 'extendsTag' in opts ? opts.extendsTag : null;
      return new html$._JSElementUpgrader.new(this, type, extendsTag);
    }
  };
  dart.addRtiResources(html$.HtmlDocument, ["html|HtmlDocument"]);
  dart.setMethodSignature(html$.HtmlDocument, () => dart.global.Object.setPrototypeOf({
    [S$1.$caretRangeFromPoint]: T$5.intNAndintNToRange(),
    [S$1.$elementFromPoint]: T$5.intAndintToElementN(),
    [S$1.$createElementUpgrader]: T$5.Type__ToElementUpgrader()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.HtmlDocument))));
  dart.setStaticMethodSignature(html$.HtmlDocument, () => ['__', '_determineVisibilityChangeEventType']);
  dart.setGetterSignature(html$.HtmlDocument, () => dart.global.Object.setPrototypeOf({
    [S$1.$body]: T$5.BodyElementN(),
    [S.$head]: T$5.HeadElementN(),
    [S$1.$lastModified]: T$.StringN(),
    [S$1.$preferredStylesheetSet]: T$.StringN(),
    [S$1.$referrer]: T$.String(),
    [S$1.$selectedStylesheetSet]: T$.StringN(),
    [S$1.$styleSheets]: T$5.ListNOfStyleSheet(),
    [S.$title]: T$.String(),
    [S$1.$onVisibilityChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.HtmlDocument))));
  dart.setSetterSignature(html$.HtmlDocument, () => dart.global.Object.setPrototypeOf({
    [S$1.$body]: T$5.BodyElementN(),
    [S$1.$selectedStylesheetSet]: T$.StringN(),
    [S.$title]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.HtmlDocument))));
  dart.setLibraryUri(html$.HtmlDocument, I[167]);
  dart.setStaticFieldSignature(html$.HtmlDocument, () => ['visibilityChangeEvent']);
  dart.defineLazy(html$.HtmlDocument, {
    /*html$.HtmlDocument.visibilityChangeEvent*/get visibilityChangeEvent() {
      return C[394] || CT.C394;
    }
  }, false);
  dart.registerExtension("HTMLDocument", html$.HtmlDocument);
  html$.HtmlFormControlsCollection = class HtmlFormControlsCollection extends html$.HtmlCollection {
    static ['_#_#tearOff']() {
      return html$.HtmlFormControlsCollection.__();
    }
    [S$1.$namedItem](...args) {
      return this.namedItem.apply(this, args);
    }
  };
  dart.addRtiResources(html$.HtmlFormControlsCollection, ["html|HtmlFormControlsCollection"]);
  dart.setStaticMethodSignature(html$.HtmlFormControlsCollection, () => ['__']);
  dart.setLibraryUri(html$.HtmlFormControlsCollection, I[167]);
  dart.registerExtension("HTMLFormControlsCollection", html$.HtmlFormControlsCollection);
  html$.HtmlHtmlElement = class HtmlHtmlElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.HtmlHtmlElement.__();
    }
    static new() {
      return html$.document.createElement("html");
    }
    static ['_#new#tearOff']() {
      return html$.HtmlHtmlElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.HtmlHtmlElement.created();
    }
  };
  (html$.HtmlHtmlElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.HtmlHtmlElement).created.call(this);
    ;
  }).prototype = html$.HtmlHtmlElement.prototype;
  dart.addRtiResources(html$.HtmlHtmlElement, ["html|HtmlHtmlElement"]);
  dart.setStaticMethodSignature(html$.HtmlHtmlElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.HtmlHtmlElement, I[167]);
  dart.registerExtension("HTMLHtmlElement", html$.HtmlHtmlElement);
  html$.HtmlHyperlinkElementUtils = class HtmlHyperlinkElementUtils extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.HtmlHyperlinkElementUtils.__();
    }
    get [S$.$hash]() {
      return this.hash;
    }
    set [S$.$hash](value) {
      this.hash = value;
    }
    get [S$.$host]() {
      return this.host;
    }
    set [S$.$host](value) {
      this.host = value;
    }
    get [S$.$hostname]() {
      return this.hostname;
    }
    set [S$.$hostname](value) {
      this.hostname = value;
    }
    get [S$.$href]() {
      return this.href;
    }
    set [S$.$href](value) {
      this.href = value;
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$.$password]() {
      return this.password;
    }
    set [S$.$password](value) {
      this.password = value;
    }
    get [S$.$pathname]() {
      return this.pathname;
    }
    set [S$.$pathname](value) {
      this.pathname = value;
    }
    get [S$.$port]() {
      return this.port;
    }
    set [S$.$port](value) {
      this.port = value;
    }
    get [S$.$protocol]() {
      return this.protocol;
    }
    set [S$.$protocol](value) {
      this.protocol = value;
    }
    get [S$.$search]() {
      return this.search;
    }
    set [S$.$search](value) {
      this.search = value;
    }
    get [S$.$username]() {
      return this.username;
    }
    set [S$.$username](value) {
      this.username = value;
    }
  };
  dart.addRtiResources(html$.HtmlHyperlinkElementUtils, ["html|HtmlHyperlinkElementUtils"]);
  dart.setStaticMethodSignature(html$.HtmlHyperlinkElementUtils, () => ['__']);
  dart.setGetterSignature(html$.HtmlHyperlinkElementUtils, () => dart.global.Object.setPrototypeOf({
    [S$.$hash]: T$.StringN(),
    [S$.$host]: T$.StringN(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.StringN(),
    [S$.$origin]: T$.StringN(),
    [S$.$password]: T$.StringN(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    [S$.$search]: T$.StringN(),
    [S$.$username]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.HtmlHyperlinkElementUtils))));
  dart.setSetterSignature(html$.HtmlHyperlinkElementUtils, () => dart.global.Object.setPrototypeOf({
    [S$.$hash]: T$.StringN(),
    [S$.$host]: T$.StringN(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.StringN(),
    [S$.$password]: T$.StringN(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    [S$.$search]: T$.StringN(),
    [S$.$username]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.HtmlHyperlinkElementUtils))));
  dart.setLibraryUri(html$.HtmlHyperlinkElementUtils, I[167]);
  dart.registerExtension("HTMLHyperlinkElementUtils", html$.HtmlHyperlinkElementUtils);
  html$.HtmlOptionsCollection = class HtmlOptionsCollection extends html$.HtmlCollection {
    static ['_#_#tearOff']() {
      return html$.HtmlOptionsCollection.__();
    }
    [S$1._item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.HtmlOptionsCollection, ["html|HtmlOptionsCollection"]);
  dart.setMethodSignature(html$.HtmlOptionsCollection, () => dart.global.Object.setPrototypeOf({[S$1._item]: T$5.intToElementN()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.HtmlOptionsCollection))));
  dart.setStaticMethodSignature(html$.HtmlOptionsCollection, () => ['__']);
  dart.setLibraryUri(html$.HtmlOptionsCollection, I[167]);
  dart.registerExtension("HTMLOptionsCollection", html$.HtmlOptionsCollection);
  html$.HttpRequestEventTarget = class HttpRequestEventTarget extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.HttpRequestEventTarget.__();
    }
    get [S.$onAbort]() {
      return html$.HttpRequestEventTarget.abortEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.HttpRequestEventTarget.errorEvent.forTarget(this);
    }
    get [S.$onLoad]() {
      return html$.HttpRequestEventTarget.loadEvent.forTarget(this);
    }
    get [S$1.$onLoadEnd]() {
      return html$.HttpRequestEventTarget.loadEndEvent.forTarget(this);
    }
    get [S$1.$onLoadStart]() {
      return html$.HttpRequestEventTarget.loadStartEvent.forTarget(this);
    }
    get [S$.$onProgress]() {
      return html$.HttpRequestEventTarget.progressEvent.forTarget(this);
    }
    get [S$1.$onTimeout]() {
      return html$.HttpRequestEventTarget.timeoutEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.HttpRequestEventTarget, ["html|HttpRequestEventTarget"]);
  dart.setStaticMethodSignature(html$.HttpRequestEventTarget, () => ['__']);
  dart.setGetterSignature(html$.HttpRequestEventTarget, () => dart.global.Object.setPrototypeOf({
    [S.$onAbort]: T$4.StreamOfProgressEvent(),
    [S.$onError]: T$4.StreamOfProgressEvent(),
    [S.$onLoad]: T$4.StreamOfProgressEvent(),
    [S$1.$onLoadEnd]: T$4.StreamOfProgressEvent(),
    [S$1.$onLoadStart]: T$4.StreamOfProgressEvent(),
    [S$.$onProgress]: T$4.StreamOfProgressEvent(),
    [S$1.$onTimeout]: T$4.StreamOfProgressEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.HttpRequestEventTarget))));
  dart.setLibraryUri(html$.HttpRequestEventTarget, I[167]);
  dart.setStaticFieldSignature(html$.HttpRequestEventTarget, () => ['abortEvent', 'errorEvent', 'loadEvent', 'loadEndEvent', 'loadStartEvent', 'progressEvent', 'timeoutEvent']);
  dart.defineLazy(html$.HttpRequestEventTarget, {
    /*html$.HttpRequestEventTarget.abortEvent*/get abortEvent() {
      return C[382] || CT.C382;
    },
    /*html$.HttpRequestEventTarget.errorEvent*/get errorEvent() {
      return C[383] || CT.C383;
    },
    /*html$.HttpRequestEventTarget.loadEvent*/get loadEvent() {
      return C[384] || CT.C384;
    },
    /*html$.HttpRequestEventTarget.loadEndEvent*/get loadEndEvent() {
      return C[385] || CT.C385;
    },
    /*html$.HttpRequestEventTarget.loadStartEvent*/get loadStartEvent() {
      return C[386] || CT.C386;
    },
    /*html$.HttpRequestEventTarget.progressEvent*/get progressEvent() {
      return C[360] || CT.C360;
    },
    /*html$.HttpRequestEventTarget.timeoutEvent*/get timeoutEvent() {
      return C[396] || CT.C396;
    }
  }, false);
  dart.registerExtension("XMLHttpRequestEventTarget", html$.HttpRequestEventTarget);
  html$.HttpRequest = class HttpRequest extends html$.HttpRequestEventTarget {
    static getString(url, opts) {
      if (url == null) dart.nullFailed(I[166], 18029, 42, "url");
      let withCredentials = opts && 'withCredentials' in opts ? opts.withCredentials : null;
      let onProgress = opts && 'onProgress' in opts ? opts.onProgress : null;
      return html$.HttpRequest.request(url, {withCredentials: withCredentials, onProgress: onProgress}).then(T$.String(), dart.fn(xhr => {
        if (xhr == null) dart.nullFailed(I[166], 18033, 28, "xhr");
        return dart.nullCheck(xhr.responseText);
      }, T$5.HttpRequestToString()));
    }
    static postFormData(url, data, opts) {
      if (url == null) dart.nullFailed(I[166], 18061, 50, "url");
      if (data == null) dart.nullFailed(I[166], 18061, 75, "data");
      let withCredentials = opts && 'withCredentials' in opts ? opts.withCredentials : null;
      let responseType = opts && 'responseType' in opts ? opts.responseType : null;
      let requestHeaders = opts && 'requestHeaders' in opts ? opts.requestHeaders : null;
      let onProgress = opts && 'onProgress' in opts ? opts.onProgress : null;
      let parts = [];
      data[$forEach](dart.fn((key, value) => {
        if (key == null) dart.nullFailed(I[166], 18067, 19, "key");
        if (value == null) dart.nullFailed(I[166], 18067, 24, "value");
        parts[$add](dart.str(core.Uri.encodeQueryComponent(key)) + "=" + dart.str(core.Uri.encodeQueryComponent(value)));
      }, T$2.StringAndStringTovoid()));
      let formData = parts[$join]("&");
      if (requestHeaders == null) {
        requestHeaders = new (G.IdentityMapOfString$String()).new();
      }
      requestHeaders[$putIfAbsent]("Content-Type", dart.fn(() => "application/x-www-form-urlencoded; charset=UTF-8", T$.VoidToString()));
      return html$.HttpRequest.request(url, {method: "POST", withCredentials: withCredentials, responseType: responseType, requestHeaders: requestHeaders, sendData: formData, onProgress: onProgress});
    }
    static request(url, opts) {
      if (url == null) dart.nullFailed(I[166], 18142, 45, "url");
      let method = opts && 'method' in opts ? opts.method : null;
      let withCredentials = opts && 'withCredentials' in opts ? opts.withCredentials : null;
      let responseType = opts && 'responseType' in opts ? opts.responseType : null;
      let mimeType = opts && 'mimeType' in opts ? opts.mimeType : null;
      let requestHeaders = opts && 'requestHeaders' in opts ? opts.requestHeaders : null;
      let sendData = opts && 'sendData' in opts ? opts.sendData : null;
      let onProgress = opts && 'onProgress' in opts ? opts.onProgress : null;
      let completer = G$.CompleterOfHttpRequest().new();
      let xhr = html$.HttpRequest.new();
      if (method == null) {
        method = "GET";
      }
      xhr.open(method, url, {async: true});
      if (withCredentials != null) {
        xhr.withCredentials = withCredentials;
      }
      if (responseType != null) {
        xhr.responseType = responseType;
      }
      if (mimeType != null) {
        xhr.overrideMimeType(mimeType);
      }
      if (requestHeaders != null) {
        requestHeaders[$forEach](dart.fn((header, value) => {
          if (header == null) dart.nullFailed(I[166], 18171, 31, "header");
          if (value == null) dart.nullFailed(I[166], 18171, 39, "value");
          xhr.setRequestHeader(header, value);
        }, T$2.StringAndStringTovoid()));
      }
      if (onProgress != null) {
        xhr[S$.$onProgress].listen(onProgress);
      }
      xhr[S.$onLoad].listen(dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 18180, 24, "e");
        let status = dart.nullCheck(xhr.status);
        let accepted = status >= 200 && status < 300;
        let fileUri = status === 0;
        let notModified = status === 304;
        let unknownRedirect = status > 307 && status < 400;
        if (accepted || fileUri || notModified || unknownRedirect) {
          completer.complete(xhr);
        } else {
          completer.completeError(e);
        }
      }, T$5.ProgressEventTovoid()));
      xhr[S.$onError].listen(dart.bind(completer, 'completeError'));
      if (sendData != null) {
        xhr.send(sendData);
      } else {
        xhr.send();
      }
      return completer.future;
    }
    static get supportsProgressEvent() {
      let xhr = html$.HttpRequest.new();
      return "onprogress" in xhr;
    }
    static get supportsCrossOrigin() {
      let xhr = html$.HttpRequest.new();
      return "withCredentials" in xhr;
    }
    static get supportsLoadEndEvent() {
      let xhr = html$.HttpRequest.new();
      return "onloadend" in xhr;
    }
    static get supportsOverrideMimeType() {
      let xhr = html$.HttpRequest.new();
      return "overrideMimeType" in xhr;
    }
    static requestCrossOrigin(url, opts) {
      if (url == null) dart.nullFailed(I[166], 18253, 51, "url");
      let method = opts && 'method' in opts ? opts.method : null;
      let sendData = opts && 'sendData' in opts ? opts.sendData : null;
      if (dart.test(html$.HttpRequest.supportsCrossOrigin)) {
        return html$.HttpRequest.request(url, {method: method, sendData: sendData}).then(T$.String(), dart.fn(xhr => {
          if (xhr == null) dart.nullFailed(I[166], 18256, 69, "xhr");
          return dart.nullCheck(xhr.responseText);
        }, T$5.HttpRequestToString()));
      }
      let completer = G$.CompleterOfString().new();
      if (method == null) {
        method = "GET";
      }
      let xhr = new XDomainRequest();
      xhr.open(method, url);
      xhr.onload = _js_helper.convertDartClosureToJS(T$0.dynamicToNull(), dart.fn(e => {
        let response = xhr.responseText;
        completer.complete(T$5.FutureOrNOfString()[_as](response));
      }, T$0.dynamicToNull()), 1);
      xhr.onerror = _js_helper.convertDartClosureToJS(T$0.dynamicToNull(), dart.fn(e => {
        completer.completeError(T$.Object()[_as](e));
      }, T$0.dynamicToNull()), 1);
      xhr.onprogress = {};
      xhr.ontimeout = {};
      xhr.timeout = Number.MAX_VALUE;
      if (sendData != null) {
        xhr.send(sendData);
      } else {
        xhr.send();
      }
      return completer.future;
    }
    get [S$1.$responseHeaders]() {
      let headers = new (G.IdentityMapOfString$String()).new();
      let headersString = this.getAllResponseHeaders();
      if (headersString == null) {
        return headers;
      }
      let headersList = headersString[$split]("\r\n");
      for (let header of headersList) {
        if (header[$isEmpty]) {
          continue;
        }
        let splitIdx = header[$indexOf](": ");
        if (splitIdx === -1) {
          continue;
        }
        let key = header[$substring](0, splitIdx)[$toLowerCase]();
        let value = header[$substring](splitIdx + 2);
        if (dart.test(headers[$containsKey](key))) {
          headers[$_set](key, dart.str(headers[$_get](key)) + ", " + value);
        } else {
          headers[$_set](key, value);
        }
      }
      return headers;
    }
    [S.$open](...args) {
      return this.open.apply(this, args);
    }
    static ['_#_#tearOff']() {
      return html$.HttpRequest.__();
    }
    static ['_#new#tearOff']() {
      return html$.HttpRequest.new();
    }
    static new() {
      return html$.HttpRequest._create_1();
    }
    static _create_1() {
      return new XMLHttpRequest();
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    get [S$.$response]() {
      return html$._convertNativeToDart_XHR_Response(this[S$1._get_response]);
    }
    get [S$1._get_response]() {
      return this.response;
    }
    get [S$1.$responseText]() {
      return this.responseText;
    }
    get [S$1.$responseType]() {
      return this.responseType;
    }
    set [S$1.$responseType](value) {
      this.responseType = value;
    }
    get [S$1.$responseUrl]() {
      return this.responseURL;
    }
    get [S$1.$responseXml]() {
      return this.responseXML;
    }
    get [S$.$status]() {
      return this.status;
    }
    get [S$1.$statusText]() {
      return this.statusText;
    }
    get [S$1.$timeout]() {
      return this.timeout;
    }
    set [S$1.$timeout](value) {
      this.timeout = value;
    }
    get [S$1.$upload]() {
      return this.upload;
    }
    get [S$1.$withCredentials]() {
      return this.withCredentials;
    }
    set [S$1.$withCredentials](value) {
      this.withCredentials = value;
    }
    [S.$abort](...args) {
      return this.abort.apply(this, args);
    }
    [S$1.$getAllResponseHeaders](...args) {
      return this.getAllResponseHeaders.apply(this, args);
    }
    [S$1.$getResponseHeader](...args) {
      return this.getResponseHeader.apply(this, args);
    }
    [S$1.$overrideMimeType](...args) {
      return this.overrideMimeType.apply(this, args);
    }
    [S$1.$send](...args) {
      return this.send.apply(this, args);
    }
    [S$1.$setRequestHeader](...args) {
      return this.setRequestHeader.apply(this, args);
    }
    get [S$1.$onReadyStateChange]() {
      return html$.HttpRequest.readyStateChangeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.HttpRequest, ["html|HttpRequest"]);
  dart.setMethodSignature(html$.HttpRequest, () => dart.global.Object.setPrototypeOf({
    [S.$open]: T$5.StringAndString__Tovoid$1(),
    [S.$abort]: T$.VoidTovoid(),
    [S$1.$getAllResponseHeaders]: T$.VoidToString(),
    [S$1.$getResponseHeader]: T$.StringToStringN(),
    [S$1.$overrideMimeType]: T$.StringTovoid(),
    [S$1.$send]: T$3.dynamicTovoid$1(),
    [S$1.$setRequestHeader]: T$2.StringAndStringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.HttpRequest))));
  dart.setStaticMethodSignature(html$.HttpRequest, () => ['getString', 'postFormData', 'request', 'requestCrossOrigin', '__', 'new', '_create_1']);
  dart.setGetterSignature(html$.HttpRequest, () => dart.global.Object.setPrototypeOf({
    [S$1.$responseHeaders]: T$2.MapOfString$String(),
    [S.$readyState]: T$.int(),
    [S$.$response]: T$.dynamic(),
    [S$1._get_response]: T$.dynamic(),
    [S$1.$responseText]: T$.StringN(),
    [S$1.$responseType]: T$.String(),
    [S$1.$responseUrl]: T$.StringN(),
    [S$1.$responseXml]: T$3.DocumentN(),
    [S$.$status]: T$.intN(),
    [S$1.$statusText]: T$.StringN(),
    [S$1.$timeout]: T$.intN(),
    [S$1.$upload]: T$5.HttpRequestUpload(),
    [S$1.$withCredentials]: T$.boolN(),
    [S$1.$onReadyStateChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.HttpRequest))));
  dart.setSetterSignature(html$.HttpRequest, () => dart.global.Object.setPrototypeOf({
    [S$1.$responseType]: T$.String(),
    [S$1.$timeout]: T$.intN(),
    [S$1.$withCredentials]: T$.boolN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.HttpRequest))));
  dart.setStaticGetterSignature(html$.HttpRequest, () => ['supportsProgressEvent', 'supportsCrossOrigin', 'supportsLoadEndEvent', 'supportsOverrideMimeType']);
  dart.setLibraryUri(html$.HttpRequest, I[167]);
  dart.setStaticFieldSignature(html$.HttpRequest, () => ['readyStateChangeEvent', 'DONE', 'HEADERS_RECEIVED', 'LOADING', 'OPENED', 'UNSENT']);
  dart.defineLazy(html$.HttpRequest, {
    /*html$.HttpRequest.readyStateChangeEvent*/get readyStateChangeEvent() {
      return C[375] || CT.C375;
    },
    /*html$.HttpRequest.DONE*/get DONE() {
      return 4;
    },
    /*html$.HttpRequest.HEADERS_RECEIVED*/get HEADERS_RECEIVED() {
      return 2;
    },
    /*html$.HttpRequest.LOADING*/get LOADING() {
      return 3;
    },
    /*html$.HttpRequest.OPENED*/get OPENED() {
      return 1;
    },
    /*html$.HttpRequest.UNSENT*/get UNSENT() {
      return 0;
    }
  }, false);
  dart.registerExtension("XMLHttpRequest", html$.HttpRequest);
  html$.HttpRequestUpload = class HttpRequestUpload extends html$.HttpRequestEventTarget {
    static ['_#_#tearOff']() {
      return html$.HttpRequestUpload.__();
    }
  };
  dart.addRtiResources(html$.HttpRequestUpload, ["html|HttpRequestUpload"]);
  dart.setStaticMethodSignature(html$.HttpRequestUpload, () => ['__']);
  dart.setLibraryUri(html$.HttpRequestUpload, I[167]);
  dart.registerExtension("XMLHttpRequestUpload", html$.HttpRequestUpload);
  html$.IFrameElement = class IFrameElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.IFrameElement.__();
    }
    static new() {
      return html$.document.createElement("iframe");
    }
    static ['_#new#tearOff']() {
      return html$.IFrameElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.IFrameElement.created();
    }
    get [S$1.$allow]() {
      return this.allow;
    }
    set [S$1.$allow](value) {
      this.allow = value;
    }
    get [S$1.$allowFullscreen]() {
      return this.allowFullscreen;
    }
    set [S$1.$allowFullscreen](value) {
      this.allowFullscreen = value;
    }
    get [S$1.$allowPaymentRequest]() {
      return this.allowPaymentRequest;
    }
    set [S$1.$allowPaymentRequest](value) {
      this.allowPaymentRequest = value;
    }
    get [S$1.$contentWindow]() {
      return html$._convertNativeToDart_Window(this[S$1._get_contentWindow]);
    }
    get [S$1._get_contentWindow]() {
      return this.contentWindow;
    }
    get [S$1.$csp]() {
      return this.csp;
    }
    set [S$1.$csp](value) {
      this.csp = value;
    }
    get [$height]() {
      return this.height;
    }
    set [$height](value) {
      this.height = value;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S$.$referrerPolicy]() {
      return this.referrerPolicy;
    }
    set [S$.$referrerPolicy](value) {
      this.referrerPolicy = value;
    }
    get [S$1.$sandbox]() {
      return this.sandbox;
    }
    get [S$.$src]() {
      return this.src;
    }
    set [S$.$src](value) {
      this.src = value;
    }
    get [S$1.$srcdoc]() {
      return this.srcdoc;
    }
    set [S$1.$srcdoc](value) {
      this.srcdoc = value;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
  };
  (html$.IFrameElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.IFrameElement).created.call(this);
    ;
  }).prototype = html$.IFrameElement.prototype;
  dart.addRtiResources(html$.IFrameElement, ["html|IFrameElement"]);
  dart.setStaticMethodSignature(html$.IFrameElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.IFrameElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$allow]: T$.StringN(),
    [S$1.$allowFullscreen]: T$.boolN(),
    [S$1.$allowPaymentRequest]: T$.boolN(),
    [S$1.$contentWindow]: T$4.WindowBaseN(),
    [S$1._get_contentWindow]: T$.dynamic(),
    [S$1.$csp]: T$.StringN(),
    [$height]: T$.StringN(),
    [$name]: T$.StringN(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$1.$sandbox]: T$4.DomTokenListN(),
    [S$.$src]: T$.StringN(),
    [S$1.$srcdoc]: T$.StringN(),
    [$width]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.IFrameElement))));
  dart.setSetterSignature(html$.IFrameElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$allow]: T$.StringN(),
    [S$1.$allowFullscreen]: T$.boolN(),
    [S$1.$allowPaymentRequest]: T$.boolN(),
    [S$1.$csp]: T$.StringN(),
    [$height]: T$.StringN(),
    [$name]: T$.StringN(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$.$src]: T$.StringN(),
    [S$1.$srcdoc]: T$.StringN(),
    [$width]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.IFrameElement))));
  dart.setLibraryUri(html$.IFrameElement, I[167]);
  dart.registerExtension("HTMLIFrameElement", html$.IFrameElement);
  html$.IdleDeadline = class IdleDeadline extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.IdleDeadline.__();
    }
    get [S$1.$didTimeout]() {
      return this.didTimeout;
    }
    [S$1.$timeRemaining](...args) {
      return this.timeRemaining.apply(this, args);
    }
  };
  dart.addRtiResources(html$.IdleDeadline, ["html|IdleDeadline"]);
  dart.setMethodSignature(html$.IdleDeadline, () => dart.global.Object.setPrototypeOf({[S$1.$timeRemaining]: T$.VoidTodouble()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.IdleDeadline))));
  dart.setStaticMethodSignature(html$.IdleDeadline, () => ['__']);
  dart.setGetterSignature(html$.IdleDeadline, () => dart.global.Object.setPrototypeOf({[S$1.$didTimeout]: T$.boolN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.IdleDeadline))));
  dart.setLibraryUri(html$.IdleDeadline, I[167]);
  dart.registerExtension("IdleDeadline", html$.IdleDeadline);
  html$.ImageBitmap = class ImageBitmap extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ImageBitmap.__();
    }
    get [$height]() {
      return this.height;
    }
    get [$width]() {
      return this.width;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
  };
  dart.addRtiResources(html$.ImageBitmap, ["html|ImageBitmap"]);
  dart.setMethodSignature(html$.ImageBitmap, () => dart.global.Object.setPrototypeOf({[S.$close]: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ImageBitmap))));
  dart.setStaticMethodSignature(html$.ImageBitmap, () => ['__']);
  dart.setGetterSignature(html$.ImageBitmap, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.intN(),
    [$width]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ImageBitmap))));
  dart.setLibraryUri(html$.ImageBitmap, I[167]);
  dart.registerExtension("ImageBitmap", html$.ImageBitmap);
  html$.ImageBitmapRenderingContext = class ImageBitmapRenderingContext extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ImageBitmapRenderingContext.__();
    }
    get [S$.$canvas]() {
      return this.canvas;
    }
    [S$1.$transferFromImageBitmap](...args) {
      return this.transferFromImageBitmap.apply(this, args);
    }
  };
  dart.addRtiResources(html$.ImageBitmapRenderingContext, ["html|ImageBitmapRenderingContext"]);
  dart.setMethodSignature(html$.ImageBitmapRenderingContext, () => dart.global.Object.setPrototypeOf({[S$1.$transferFromImageBitmap]: T$5.ImageBitmapNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ImageBitmapRenderingContext))));
  dart.setStaticMethodSignature(html$.ImageBitmapRenderingContext, () => ['__']);
  dart.setGetterSignature(html$.ImageBitmapRenderingContext, () => dart.global.Object.setPrototypeOf({[S$.$canvas]: T$4.CanvasElementN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ImageBitmapRenderingContext))));
  dart.setLibraryUri(html$.ImageBitmapRenderingContext, I[167]);
  dart.registerExtension("ImageBitmapRenderingContext", html$.ImageBitmapRenderingContext);
  html$.ImageCapture = class ImageCapture$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ImageCapture.__();
    }
    static new(track) {
      if (track == null) dart.nullFailed(I[166], 18886, 41, "track");
      return html$.ImageCapture._create_1(track);
    }
    static ['_#new#tearOff'](track) {
      if (track == null) dart.nullFailed(I[166], 18886, 41, "track");
      return html$.ImageCapture.new(track);
    }
    static _create_1(track) {
      return new ImageCapture(track);
    }
    get [S$1.$track]() {
      return this.track;
    }
    [S$1.$getPhotoCapabilities]() {
      return js_util.promiseToFuture(T$5.PhotoCapabilities(), this.getPhotoCapabilities());
    }
    [S$1.$getPhotoSettings]() {
      return html$.promiseToFutureAsMap(this.getPhotoSettings());
    }
    [S$1.$grabFrame]() {
      return js_util.promiseToFuture(T$5.ImageBitmap(), this.grabFrame());
    }
    [S$1.$setOptions](photoSettings) {
      if (photoSettings == null) dart.nullFailed(I[166], 18904, 25, "photoSettings");
      let photoSettings_dict = html_common.convertDartToNative_Dictionary(photoSettings);
      return js_util.promiseToFuture(T$.dynamic(), this.setOptions(photoSettings_dict));
    }
    [S$1.$takePhoto](photoSettings = null) {
      let photoSettings_dict = null;
      if (photoSettings != null) {
        photoSettings_dict = html_common.convertDartToNative_Dictionary(photoSettings);
      }
      return js_util.promiseToFuture(T$4.Blob(), this.takePhoto(photoSettings_dict));
    }
  };
  dart.addRtiResources(html$.ImageCapture, ["html|ImageCapture"]);
  dart.setMethodSignature(html$.ImageCapture, () => dart.global.Object.setPrototypeOf({
    [S$1.$getPhotoCapabilities]: T$5.VoidToFutureOfPhotoCapabilities(),
    [S$1.$getPhotoSettings]: T$5.VoidToFutureOfMapNOfString$dynamic(),
    [S$1.$grabFrame]: T$5.VoidToFutureOfImageBitmap(),
    [S$1.$setOptions]: T$5.MapToFuture(),
    [S$1.$takePhoto]: T$5.MapNToFutureOfBlob()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ImageCapture))));
  dart.setStaticMethodSignature(html$.ImageCapture, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.ImageCapture, () => dart.global.Object.setPrototypeOf({[S$1.$track]: T$5.MediaStreamTrackN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ImageCapture))));
  dart.setLibraryUri(html$.ImageCapture, I[167]);
  dart.registerExtension("ImageCapture", html$.ImageCapture);
  html$.ImageData = class ImageData$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ImageData.__();
    }
    static new(data_OR_sw, sh_OR_sw, sh = null) {
      if (sh_OR_sw == null) dart.nullFailed(I[166], 18929, 37, "sh_OR_sw");
      if (T$.int()[_is](sh_OR_sw) && T$.int()[_is](data_OR_sw) && sh == null) {
        return html$.ImageData._create_1(data_OR_sw, sh_OR_sw);
      }
      if (T$.int()[_is](sh_OR_sw) && T$0.Uint8ClampedList()[_is](data_OR_sw) && sh == null) {
        return html$.ImageData._create_2(data_OR_sw, sh_OR_sw);
      }
      if (T$.int()[_is](sh) && T$.int()[_is](sh_OR_sw) && T$0.Uint8ClampedList()[_is](data_OR_sw)) {
        return html$.ImageData._create_3(data_OR_sw, sh_OR_sw, sh);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](data_OR_sw, sh_OR_sw, sh = null) {
      if (sh_OR_sw == null) dart.nullFailed(I[166], 18929, 37, "sh_OR_sw");
      return html$.ImageData.new(data_OR_sw, sh_OR_sw, sh);
    }
    static _create_1(data_OR_sw, sh_OR_sw) {
      return new ImageData(data_OR_sw, sh_OR_sw);
    }
    static _create_2(data_OR_sw, sh_OR_sw) {
      return new ImageData(data_OR_sw, sh_OR_sw);
    }
    static _create_3(data_OR_sw, sh_OR_sw, sh) {
      return new ImageData(data_OR_sw, sh_OR_sw, sh);
    }
    get [S$.$data]() {
      return this.data;
    }
    get [$height]() {
      return this.height;
    }
    get [$width]() {
      return this.width;
    }
  };
  dart.addRtiResources(html$.ImageData, ["html|ImageData"]);
  dart.setStaticMethodSignature(html$.ImageData, () => ['__', 'new', '_create_1', '_create_2', '_create_3']);
  dart.setGetterSignature(html$.ImageData, () => dart.global.Object.setPrototypeOf({
    [S$.$data]: T$0.Uint8ClampedList(),
    [$height]: T$.int(),
    [$width]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ImageData))));
  dart.setLibraryUri(html$.ImageData, I[167]);
  dart.registerExtension("ImageData", html$.ImageData);
  html$.ImageElement = class ImageElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ImageElement.__();
    }
    static new(opts) {
      let src = opts && 'src' in opts ? opts.src : null;
      let width = opts && 'width' in opts ? opts.width : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let e = html$.document.createElement("img");
      if (src != null) e.src = src;
      if (width != null) e.width = width;
      if (height != null) e.height = height;
      return e;
    }
    static ['_#new#tearOff'](opts) {
      let src = opts && 'src' in opts ? opts.src : null;
      let width = opts && 'width' in opts ? opts.width : null;
      let height = opts && 'height' in opts ? opts.height : null;
      return html$.ImageElement.new({src: src, width: width, height: height});
    }
    static ['_#created#tearOff']() {
      return new html$.ImageElement.created();
    }
    get [S$.$alt]() {
      return this.alt;
    }
    set [S$.$alt](value) {
      this.alt = value;
    }
    get [S$1.$async]() {
      return this.async;
    }
    set [S$1.$async](value) {
      this.async = value;
    }
    get [S$1.$complete]() {
      return this.complete;
    }
    get [S$.$crossOrigin]() {
      return this.crossOrigin;
    }
    set [S$.$crossOrigin](value) {
      this.crossOrigin = value;
    }
    get [S$.$currentSrc]() {
      return this.currentSrc;
    }
    get [$height]() {
      return this.height;
    }
    set [$height](value) {
      this.height = value;
    }
    get [S$1.$isMap]() {
      return this.isMap;
    }
    set [S$1.$isMap](value) {
      this.isMap = value;
    }
    get [S$1.$naturalHeight]() {
      return this.naturalHeight;
    }
    get [S$1.$naturalWidth]() {
      return this.naturalWidth;
    }
    get [S$.$referrerPolicy]() {
      return this.referrerPolicy;
    }
    set [S$.$referrerPolicy](value) {
      this.referrerPolicy = value;
    }
    get [S$1.$sizes]() {
      return this.sizes;
    }
    set [S$1.$sizes](value) {
      this.sizes = value;
    }
    get [S$.$src]() {
      return this.src;
    }
    set [S$.$src](value) {
      this.src = value;
    }
    get [S$1.$srcset]() {
      return this.srcset;
    }
    set [S$1.$srcset](value) {
      this.srcset = value;
    }
    get [S$1.$useMap]() {
      return this.useMap;
    }
    set [S$1.$useMap](value) {
      this.useMap = value;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
    [S$1.$decode]() {
      return js_util.promiseToFuture(T$.dynamic(), this.decode());
    }
  };
  (html$.ImageElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ImageElement).created.call(this);
    ;
  }).prototype = html$.ImageElement.prototype;
  dart.addRtiResources(html$.ImageElement, ["html|ImageElement", "html|CanvasImageSource"]);
  dart.setMethodSignature(html$.ImageElement, () => dart.global.Object.setPrototypeOf({[S$1.$decode]: T$.VoidToFuture()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ImageElement))));
  dart.setStaticMethodSignature(html$.ImageElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.ImageElement, () => dart.global.Object.setPrototypeOf({
    [S$.$alt]: T$.StringN(),
    [S$1.$async]: T$.StringN(),
    [S$1.$complete]: T$.boolN(),
    [S$.$crossOrigin]: T$.StringN(),
    [S$.$currentSrc]: T$.StringN(),
    [$height]: T$.intN(),
    [S$1.$isMap]: T$.boolN(),
    [S$1.$naturalHeight]: T$.int(),
    [S$1.$naturalWidth]: T$.int(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$1.$sizes]: T$.StringN(),
    [S$.$src]: T$.StringN(),
    [S$1.$srcset]: T$.StringN(),
    [S$1.$useMap]: T$.StringN(),
    [$width]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ImageElement))));
  dart.setSetterSignature(html$.ImageElement, () => dart.global.Object.setPrototypeOf({
    [S$.$alt]: T$.StringN(),
    [S$1.$async]: T$.StringN(),
    [S$.$crossOrigin]: T$.StringN(),
    [$height]: T$.intN(),
    [S$1.$isMap]: T$.boolN(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$1.$sizes]: T$.StringN(),
    [S$.$src]: T$.StringN(),
    [S$1.$srcset]: T$.StringN(),
    [S$1.$useMap]: T$.StringN(),
    [$width]: T$.intN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.ImageElement))));
  dart.setLibraryUri(html$.ImageElement, I[167]);
  dart.registerExtension("HTMLImageElement", html$.ImageElement);
  html$.InputDeviceCapabilities = class InputDeviceCapabilities$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.InputDeviceCapabilities.__();
    }
    static new(deviceInitDict = null) {
      if (deviceInitDict != null) {
        let deviceInitDict_1 = html_common.convertDartToNative_Dictionary(deviceInitDict);
        return html$.InputDeviceCapabilities._create_1(deviceInitDict_1);
      }
      return html$.InputDeviceCapabilities._create_2();
    }
    static ['_#new#tearOff'](deviceInitDict = null) {
      return html$.InputDeviceCapabilities.new(deviceInitDict);
    }
    static _create_1(deviceInitDict) {
      return new InputDeviceCapabilities(deviceInitDict);
    }
    static _create_2() {
      return new InputDeviceCapabilities();
    }
    get [S$1.$firesTouchEvents]() {
      return this.firesTouchEvents;
    }
  };
  dart.addRtiResources(html$.InputDeviceCapabilities, ["html|InputDeviceCapabilities"]);
  dart.setStaticMethodSignature(html$.InputDeviceCapabilities, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.InputDeviceCapabilities, () => dart.global.Object.setPrototypeOf({[S$1.$firesTouchEvents]: T$.boolN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.InputDeviceCapabilities))));
  dart.setLibraryUri(html$.InputDeviceCapabilities, I[167]);
  dart.registerExtension("InputDeviceCapabilities", html$.InputDeviceCapabilities);
  html$.InputElement = class InputElement extends html$.HtmlElement {
    static ['_#new#tearOff'](opts) {
      let type = opts && 'type' in opts ? opts.type : null;
      return html$.InputElement.new({type: type});
    }
    static new(opts) {
      let type = opts && 'type' in opts ? opts.type : null;
      let e = T$5.InputElement()[_as](html$.document[S.$createElement]("input"));
      if (type != null) {
        try {
          e.type = type;
        } catch (t$36$35e) {
          let _ = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](_)) {
          } else
            throw t$36$35e;
        }
      }
      return e;
    }
    static ['_#_#tearOff']() {
      return html$.InputElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.InputElement.created();
    }
    get [S$1.$accept]() {
      return this.accept;
    }
    set [S$1.$accept](value) {
      this.accept = value;
    }
    get [S$.$alt]() {
      return this.alt;
    }
    set [S$.$alt](value) {
      this.alt = value;
    }
    get [S$1.$autocapitalize]() {
      return this.autocapitalize;
    }
    set [S$1.$autocapitalize](value) {
      this.autocapitalize = value;
    }
    get [S$.$autocomplete]() {
      return this.autocomplete;
    }
    set [S$.$autocomplete](value) {
      this.autocomplete = value;
    }
    get [S$.$autofocus]() {
      return this.autofocus;
    }
    set [S$.$autofocus](value) {
      this.autofocus = value;
    }
    get [S$1.$capture]() {
      return this.capture;
    }
    set [S$1.$capture](value) {
      this.capture = value;
    }
    get [S$.$checked]() {
      return this.checked;
    }
    set [S$.$checked](value) {
      this.checked = value;
    }
    get [S$1.$defaultChecked]() {
      return this.defaultChecked;
    }
    set [S$1.$defaultChecked](value) {
      this.defaultChecked = value;
    }
    get [S$1.$defaultValue]() {
      return this.defaultValue;
    }
    set [S$1.$defaultValue](value) {
      this.defaultValue = value;
    }
    get [S$1.$dirName]() {
      return this.dirName;
    }
    set [S$1.$dirName](value) {
      this.dirName = value;
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$0.$files]() {
      return this.files;
    }
    set [S$0.$files](value) {
      this.files = value;
    }
    get [S$.$form]() {
      return this.form;
    }
    get [S$.$formAction]() {
      return this.formAction;
    }
    set [S$.$formAction](value) {
      this.formAction = value;
    }
    get [S$.$formEnctype]() {
      return this.formEnctype;
    }
    set [S$.$formEnctype](value) {
      this.formEnctype = value;
    }
    get [S$.$formMethod]() {
      return this.formMethod;
    }
    set [S$.$formMethod](value) {
      this.formMethod = value;
    }
    get [S$.$formNoValidate]() {
      return this.formNoValidate;
    }
    set [S$.$formNoValidate](value) {
      this.formNoValidate = value;
    }
    get [S$.$formTarget]() {
      return this.formTarget;
    }
    set [S$.$formTarget](value) {
      this.formTarget = value;
    }
    get [$height]() {
      return this.height;
    }
    set [$height](value) {
      this.height = value;
    }
    get [S$1.$incremental]() {
      return this.incremental;
    }
    set [S$1.$incremental](value) {
      this.incremental = value;
    }
    get [S$1.$indeterminate]() {
      return this.indeterminate;
    }
    set [S$1.$indeterminate](value) {
      this.indeterminate = value;
    }
    get [S$.$labels]() {
      return this.labels;
    }
    get [S$1.$list]() {
      return this.list;
    }
    get [S$1.$max]() {
      return this.max;
    }
    set [S$1.$max](value) {
      this.max = value;
    }
    get [S$1.$maxLength]() {
      return this.maxLength;
    }
    set [S$1.$maxLength](value) {
      this.maxLength = value;
    }
    get [S$1.$min]() {
      return this.min;
    }
    set [S$1.$min](value) {
      this.min = value;
    }
    get [S$1.$minLength]() {
      return this.minLength;
    }
    set [S$1.$minLength](value) {
      this.minLength = value;
    }
    get [S$1.$multiple]() {
      return this.multiple;
    }
    set [S$1.$multiple](value) {
      this.multiple = value;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S$1.$pattern]() {
      return this.pattern;
    }
    set [S$1.$pattern](value) {
      this.pattern = value;
    }
    get [S$.$placeholder]() {
      return this.placeholder;
    }
    set [S$.$placeholder](value) {
      this.placeholder = value;
    }
    get [S$.$readOnly]() {
      return this.readOnly;
    }
    set [S$.$readOnly](value) {
      this.readOnly = value;
    }
    get [S$.$required]() {
      return this.required;
    }
    set [S$.$required](value) {
      this.required = value;
    }
    get [S$1.$selectionDirection]() {
      return this.selectionDirection;
    }
    set [S$1.$selectionDirection](value) {
      this.selectionDirection = value;
    }
    get [S$1.$selectionEnd]() {
      return this.selectionEnd;
    }
    set [S$1.$selectionEnd](value) {
      this.selectionEnd = value;
    }
    get [S$1.$selectionStart]() {
      return this.selectionStart;
    }
    set [S$1.$selectionStart](value) {
      this.selectionStart = value;
    }
    get [S$.$size]() {
      return this.size;
    }
    set [S$.$size](value) {
      this.size = value;
    }
    get [S$.$src]() {
      return this.src;
    }
    set [S$.$src](value) {
      this.src = value;
    }
    get [S$1.$step]() {
      return this.step;
    }
    set [S$1.$step](value) {
      this.step = value;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
    get [S$.$validationMessage]() {
      return this.validationMessage;
    }
    get [S$.$validity]() {
      return this.validity;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
    get [S$1.$valueAsDate]() {
      return html_common.convertNativeToDart_DateTime(this[S$1._get_valueAsDate]);
    }
    get [S$1._get_valueAsDate]() {
      return this.valueAsDate;
    }
    set [S$1.$valueAsDate](value) {
      this[S$1._set_valueAsDate] = html_common.convertDartToNative_DateTime(dart.nullCheck(value));
    }
    set [S$1._set_valueAsDate](value) {
      this.valueAsDate = value;
    }
    get [S$1.$valueAsNumber]() {
      return this.valueAsNumber;
    }
    set [S$1.$valueAsNumber](value) {
      this.valueAsNumber = value;
    }
    get [$entries]() {
      return this.webkitEntries;
    }
    get [S$1.$directory]() {
      return this.webkitdirectory;
    }
    set [S$1.$directory](value) {
      this.webkitdirectory = value;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
    get [S$.$willValidate]() {
      return this.willValidate;
    }
    [S$.$checkValidity](...args) {
      return this.checkValidity.apply(this, args);
    }
    [S$.$reportValidity](...args) {
      return this.reportValidity.apply(this, args);
    }
    [S$.$select](...args) {
      return this.select.apply(this, args);
    }
    [S$.$setCustomValidity](...args) {
      return this.setCustomValidity.apply(this, args);
    }
    [S$1.$setRangeText](...args) {
      return this.setRangeText.apply(this, args);
    }
    [S$1.$setSelectionRange](...args) {
      return this.setSelectionRange.apply(this, args);
    }
    [S$1.$stepDown](...args) {
      return this.stepDown.apply(this, args);
    }
    [S$1.$stepUp](...args) {
      return this.stepUp.apply(this, args);
    }
  };
  (html$.InputElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.InputElement).created.call(this);
    ;
  }).prototype = html$.InputElement.prototype;
  dart.addRtiResources(html$.InputElement, ["html|InputElement", "html|HiddenInputElement", "html|SearchInputElement", "html|TextInputElement", "html|UrlInputElement", "html|TelephoneInputElement", "html|EmailInputElement", "html|PasswordInputElement", "html|DateInputElement", "html|MonthInputElement", "html|WeekInputElement", "html|TimeInputElement", "html|LocalDateTimeInputElement", "html|NumberInputElement", "html|RangeInputElement", "html|CheckboxInputElement", "html|RadioButtonInputElement", "html|FileUploadInputElement", "html|SubmitButtonInputElement", "html|ImageButtonInputElement", "html|ResetButtonInputElement", "html|ButtonInputElement", "html|InputElementBase", "html|TextInputElementBase", "html|RangeInputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.InputElement, () => dart.global.Object.setPrototypeOf({
    [S$.$checkValidity]: T$.VoidTobool(),
    [S$.$reportValidity]: T$.VoidTobool(),
    [S$.$select]: T$.VoidTovoid(),
    [S$.$setCustomValidity]: T$.StringTovoid(),
    [S$1.$setRangeText]: T$5.String__Tovoid$6(),
    [S$1.$setSelectionRange]: T$5.intAndintAndStringNTovoid(),
    [S$1.$stepDown]: T$4.intNTovoid$1(),
    [S$1.$stepUp]: T$4.intNTovoid$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.InputElement))));
  dart.setStaticMethodSignature(html$.InputElement, () => ['new', '__']);
  dart.setGetterSignature(html$.InputElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$accept]: T$.StringN(),
    [S$.$alt]: T$.StringN(),
    [S$1.$autocapitalize]: T$.StringN(),
    [S$.$autocomplete]: T$.String(),
    [S$.$autofocus]: T$.bool(),
    [S$1.$capture]: T$.StringN(),
    [S$.$checked]: T$.boolN(),
    [S$1.$defaultChecked]: T$.boolN(),
    [S$1.$defaultValue]: T$.StringN(),
    [S$1.$dirName]: T$.StringN(),
    [S$.$disabled]: T$.boolN(),
    [S$0.$files]: T$4.ListNOfFile(),
    [S$.$form]: T$4.FormElementN(),
    [S$.$formAction]: T$.String(),
    [S$.$formEnctype]: T$.String(),
    [S$.$formMethod]: T$.String(),
    [S$.$formNoValidate]: T$.bool(),
    [S$.$formTarget]: T$.String(),
    [$height]: T$.intN(),
    [S$1.$incremental]: T$.boolN(),
    [S$1.$indeterminate]: T$.boolN(),
    [S$.$labels]: T$4.ListNOfNode(),
    [S$1.$list]: T$5.HtmlElementN(),
    [S$1.$max]: T$.StringN(),
    [S$1.$maxLength]: T$.intN(),
    [S$1.$min]: T$.StringN(),
    [S$1.$minLength]: T$.intN(),
    [S$1.$multiple]: T$.boolN(),
    [$name]: T$.StringN(),
    [S$1.$pattern]: T$.String(),
    [S$.$placeholder]: T$.String(),
    [S$.$readOnly]: T$.boolN(),
    [S$.$required]: T$.bool(),
    [S$1.$selectionDirection]: T$.StringN(),
    [S$1.$selectionEnd]: T$.intN(),
    [S$1.$selectionStart]: T$.intN(),
    [S$.$size]: T$.intN(),
    [S$.$src]: T$.StringN(),
    [S$1.$step]: T$.StringN(),
    [S.$type]: T$.StringN(),
    [S$.$validationMessage]: T$.String(),
    [S$.$validity]: T$4.ValidityState(),
    [S.$value]: T$.StringN(),
    [S$1.$valueAsDate]: T$2.DateTime(),
    [S$1._get_valueAsDate]: T$.dynamic(),
    [S$1.$valueAsNumber]: T$3.numN(),
    [$entries]: T$5.ListNOfEntry(),
    [S$1.$directory]: T$.boolN(),
    [$width]: T$.intN(),
    [S$.$willValidate]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.InputElement))));
  dart.setSetterSignature(html$.InputElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$accept]: T$.StringN(),
    [S$.$alt]: T$.StringN(),
    [S$1.$autocapitalize]: T$.StringN(),
    [S$.$autocomplete]: T$.String(),
    [S$.$autofocus]: T$.bool(),
    [S$1.$capture]: T$.StringN(),
    [S$.$checked]: T$.boolN(),
    [S$1.$defaultChecked]: T$.boolN(),
    [S$1.$defaultValue]: T$.StringN(),
    [S$1.$dirName]: T$.StringN(),
    [S$.$disabled]: T$.boolN(),
    [S$0.$files]: T$4.ListNOfFile(),
    [S$.$formAction]: T$.String(),
    [S$.$formEnctype]: T$.String(),
    [S$.$formMethod]: T$.String(),
    [S$.$formNoValidate]: T$.bool(),
    [S$.$formTarget]: T$.String(),
    [$height]: T$.intN(),
    [S$1.$incremental]: T$.boolN(),
    [S$1.$indeterminate]: T$.boolN(),
    [S$1.$max]: T$.StringN(),
    [S$1.$maxLength]: T$.intN(),
    [S$1.$min]: T$.StringN(),
    [S$1.$minLength]: T$.intN(),
    [S$1.$multiple]: T$.boolN(),
    [$name]: T$.StringN(),
    [S$1.$pattern]: T$.String(),
    [S$.$placeholder]: T$.String(),
    [S$.$readOnly]: T$.boolN(),
    [S$.$required]: T$.bool(),
    [S$1.$selectionDirection]: T$.StringN(),
    [S$1.$selectionEnd]: T$.intN(),
    [S$1.$selectionStart]: T$.intN(),
    [S$.$size]: T$.intN(),
    [S$.$src]: T$.StringN(),
    [S$1.$step]: T$.StringN(),
    [S.$type]: T$.StringN(),
    [S.$value]: T$.StringN(),
    [S$1.$valueAsDate]: T$5.DateTimeN(),
    [S$1._set_valueAsDate]: T$.dynamic(),
    [S$1.$valueAsNumber]: T$3.numN(),
    [S$1.$directory]: T$.boolN(),
    [$width]: T$.intN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.InputElement))));
  dart.setLibraryUri(html$.InputElement, I[167]);
  dart.registerExtension("HTMLInputElement", html$.InputElement);
  html$.InputElementBase = class InputElementBase extends core.Object {};
  (html$.InputElementBase.new = function() {
    ;
  }).prototype = html$.InputElementBase.prototype;
  dart.addRtiResources(html$.InputElementBase, ["html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setLibraryUri(html$.InputElementBase, I[167]);
  html$.HiddenInputElement = class HiddenInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "hidden"});
    }
    static ['_#new#tearOff']() {
      return html$.HiddenInputElement.new();
    }
  };
  (html$.HiddenInputElement[dart.mixinNew] = function() {
  }).prototype = html$.HiddenInputElement.prototype;
  dart.addRtiResources(html$.HiddenInputElement, ["html|HiddenInputElement", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.HiddenInputElement, () => ['new']);
  dart.setLibraryUri(html$.HiddenInputElement, I[167]);
  html$.TextInputElementBase = class TextInputElementBase extends core.Object {};
  (html$.TextInputElementBase.new = function() {
    ;
  }).prototype = html$.TextInputElementBase.prototype;
  dart.addRtiResources(html$.TextInputElementBase, ["html|TextInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setLibraryUri(html$.TextInputElementBase, I[167]);
  html$.SearchInputElement = class SearchInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "search"});
    }
    static ['_#new#tearOff']() {
      return html$.SearchInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "search"}).type === "search";
    }
  };
  (html$.SearchInputElement[dart.mixinNew] = function() {
  }).prototype = html$.SearchInputElement.prototype;
  dart.addRtiResources(html$.SearchInputElement, ["html|SearchInputElement", "html|TextInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.SearchInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.SearchInputElement, () => ['supported']);
  dart.setLibraryUri(html$.SearchInputElement, I[167]);
  html$.TextInputElement = class TextInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "text"});
    }
    static ['_#new#tearOff']() {
      return html$.TextInputElement.new();
    }
  };
  (html$.TextInputElement[dart.mixinNew] = function() {
  }).prototype = html$.TextInputElement.prototype;
  dart.addRtiResources(html$.TextInputElement, ["html|TextInputElement", "html|TextInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.TextInputElement, () => ['new']);
  dart.setLibraryUri(html$.TextInputElement, I[167]);
  html$.UrlInputElement = class UrlInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "url"});
    }
    static ['_#new#tearOff']() {
      return html$.UrlInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "url"}).type === "url";
    }
  };
  (html$.UrlInputElement[dart.mixinNew] = function() {
  }).prototype = html$.UrlInputElement.prototype;
  dart.addRtiResources(html$.UrlInputElement, ["html|UrlInputElement", "html|TextInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.UrlInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.UrlInputElement, () => ['supported']);
  dart.setLibraryUri(html$.UrlInputElement, I[167]);
  html$.TelephoneInputElement = class TelephoneInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "tel"});
    }
    static ['_#new#tearOff']() {
      return html$.TelephoneInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "tel"}).type === "tel";
    }
  };
  (html$.TelephoneInputElement[dart.mixinNew] = function() {
  }).prototype = html$.TelephoneInputElement.prototype;
  dart.addRtiResources(html$.TelephoneInputElement, ["html|TelephoneInputElement", "html|TextInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.TelephoneInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.TelephoneInputElement, () => ['supported']);
  dart.setLibraryUri(html$.TelephoneInputElement, I[167]);
  html$.EmailInputElement = class EmailInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "email"});
    }
    static ['_#new#tearOff']() {
      return html$.EmailInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "email"}).type === "email";
    }
  };
  (html$.EmailInputElement[dart.mixinNew] = function() {
  }).prototype = html$.EmailInputElement.prototype;
  dart.addRtiResources(html$.EmailInputElement, ["html|EmailInputElement", "html|TextInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.EmailInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.EmailInputElement, () => ['supported']);
  dart.setLibraryUri(html$.EmailInputElement, I[167]);
  html$.PasswordInputElement = class PasswordInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "password"});
    }
    static ['_#new#tearOff']() {
      return html$.PasswordInputElement.new();
    }
  };
  (html$.PasswordInputElement[dart.mixinNew] = function() {
  }).prototype = html$.PasswordInputElement.prototype;
  dart.addRtiResources(html$.PasswordInputElement, ["html|PasswordInputElement", "html|TextInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.PasswordInputElement, () => ['new']);
  dart.setLibraryUri(html$.PasswordInputElement, I[167]);
  html$.RangeInputElementBase = class RangeInputElementBase extends core.Object {};
  (html$.RangeInputElementBase.new = function() {
    ;
  }).prototype = html$.RangeInputElementBase.prototype;
  dart.addRtiResources(html$.RangeInputElementBase, ["html|RangeInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setLibraryUri(html$.RangeInputElementBase, I[167]);
  html$.DateInputElement = class DateInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "date"});
    }
    static ['_#new#tearOff']() {
      return html$.DateInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "date"}).type === "date";
    }
  };
  (html$.DateInputElement[dart.mixinNew] = function() {
  }).prototype = html$.DateInputElement.prototype;
  dart.addRtiResources(html$.DateInputElement, ["html|DateInputElement", "html|RangeInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.DateInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.DateInputElement, () => ['supported']);
  dart.setLibraryUri(html$.DateInputElement, I[167]);
  html$.MonthInputElement = class MonthInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "month"});
    }
    static ['_#new#tearOff']() {
      return html$.MonthInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "month"}).type === "month";
    }
  };
  (html$.MonthInputElement[dart.mixinNew] = function() {
  }).prototype = html$.MonthInputElement.prototype;
  dart.addRtiResources(html$.MonthInputElement, ["html|MonthInputElement", "html|RangeInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.MonthInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.MonthInputElement, () => ['supported']);
  dart.setLibraryUri(html$.MonthInputElement, I[167]);
  html$.WeekInputElement = class WeekInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "week"});
    }
    static ['_#new#tearOff']() {
      return html$.WeekInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "week"}).type === "week";
    }
  };
  (html$.WeekInputElement[dart.mixinNew] = function() {
  }).prototype = html$.WeekInputElement.prototype;
  dart.addRtiResources(html$.WeekInputElement, ["html|WeekInputElement", "html|RangeInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.WeekInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.WeekInputElement, () => ['supported']);
  dart.setLibraryUri(html$.WeekInputElement, I[167]);
  html$.TimeInputElement = class TimeInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "time"});
    }
    static ['_#new#tearOff']() {
      return html$.TimeInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "time"}).type === "time";
    }
  };
  (html$.TimeInputElement[dart.mixinNew] = function() {
  }).prototype = html$.TimeInputElement.prototype;
  dart.addRtiResources(html$.TimeInputElement, ["html|TimeInputElement", "html|RangeInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.TimeInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.TimeInputElement, () => ['supported']);
  dart.setLibraryUri(html$.TimeInputElement, I[167]);
  html$.LocalDateTimeInputElement = class LocalDateTimeInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "datetime-local"});
    }
    static ['_#new#tearOff']() {
      return html$.LocalDateTimeInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "datetime-local"}).type === "datetime-local";
    }
  };
  (html$.LocalDateTimeInputElement[dart.mixinNew] = function() {
  }).prototype = html$.LocalDateTimeInputElement.prototype;
  dart.addRtiResources(html$.LocalDateTimeInputElement, ["html|LocalDateTimeInputElement", "html|RangeInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.LocalDateTimeInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.LocalDateTimeInputElement, () => ['supported']);
  dart.setLibraryUri(html$.LocalDateTimeInputElement, I[167]);
  html$.NumberInputElement = class NumberInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "number"});
    }
    static ['_#new#tearOff']() {
      return html$.NumberInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "number"}).type === "number";
    }
  };
  (html$.NumberInputElement[dart.mixinNew] = function() {
  }).prototype = html$.NumberInputElement.prototype;
  dart.addRtiResources(html$.NumberInputElement, ["html|NumberInputElement", "html|RangeInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.NumberInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.NumberInputElement, () => ['supported']);
  dart.setLibraryUri(html$.NumberInputElement, I[167]);
  html$.RangeInputElement = class RangeInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "range"});
    }
    static ['_#new#tearOff']() {
      return html$.RangeInputElement.new();
    }
    static get supported() {
      return html$.InputElement.new({type: "range"}).type === "range";
    }
  };
  (html$.RangeInputElement[dart.mixinNew] = function() {
  }).prototype = html$.RangeInputElement.prototype;
  dart.addRtiResources(html$.RangeInputElement, ["html|RangeInputElement", "html|RangeInputElementBase", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.RangeInputElement, () => ['new']);
  dart.setStaticGetterSignature(html$.RangeInputElement, () => ['supported']);
  dart.setLibraryUri(html$.RangeInputElement, I[167]);
  html$.CheckboxInputElement = class CheckboxInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "checkbox"});
    }
    static ['_#new#tearOff']() {
      return html$.CheckboxInputElement.new();
    }
  };
  (html$.CheckboxInputElement[dart.mixinNew] = function() {
  }).prototype = html$.CheckboxInputElement.prototype;
  dart.addRtiResources(html$.CheckboxInputElement, ["html|CheckboxInputElement", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.CheckboxInputElement, () => ['new']);
  dart.setLibraryUri(html$.CheckboxInputElement, I[167]);
  html$.RadioButtonInputElement = class RadioButtonInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "radio"});
    }
    static ['_#new#tearOff']() {
      return html$.RadioButtonInputElement.new();
    }
  };
  (html$.RadioButtonInputElement[dart.mixinNew] = function() {
  }).prototype = html$.RadioButtonInputElement.prototype;
  dart.addRtiResources(html$.RadioButtonInputElement, ["html|RadioButtonInputElement", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.RadioButtonInputElement, () => ['new']);
  dart.setLibraryUri(html$.RadioButtonInputElement, I[167]);
  html$.FileUploadInputElement = class FileUploadInputElement extends core.Object {
    get files() {
      return this[S$1.files];
    }
    set files(value) {
      this[S$1.files] = value;
    }
    static new() {
      return html$.InputElement.new({type: "file"});
    }
    static ['_#new#tearOff']() {
      return html$.FileUploadInputElement.new();
    }
  };
  (html$.FileUploadInputElement[dart.mixinNew] = function() {
    this[S$1.files] = null;
  }).prototype = html$.FileUploadInputElement.prototype;
  dart.addRtiResources(html$.FileUploadInputElement, ["html|FileUploadInputElement", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.FileUploadInputElement, () => ['new']);
  dart.setLibraryUri(html$.FileUploadInputElement, I[167]);
  dart.setFieldSignature(html$.FileUploadInputElement, () => dart.global.Object.setPrototypeOf({files: {type: T$4.ListNOfFile(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$.FileUploadInputElement))));
  dart.defineExtensionAccessors(html$.FileUploadInputElement, ['files']);
  html$.SubmitButtonInputElement = class SubmitButtonInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "submit"});
    }
    static ['_#new#tearOff']() {
      return html$.SubmitButtonInputElement.new();
    }
  };
  (html$.SubmitButtonInputElement[dart.mixinNew] = function() {
  }).prototype = html$.SubmitButtonInputElement.prototype;
  dart.addRtiResources(html$.SubmitButtonInputElement, ["html|SubmitButtonInputElement", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.SubmitButtonInputElement, () => ['new']);
  dart.setLibraryUri(html$.SubmitButtonInputElement, I[167]);
  html$.ImageButtonInputElement = class ImageButtonInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "image"});
    }
    static ['_#new#tearOff']() {
      return html$.ImageButtonInputElement.new();
    }
  };
  (html$.ImageButtonInputElement[dart.mixinNew] = function() {
  }).prototype = html$.ImageButtonInputElement.prototype;
  dart.addRtiResources(html$.ImageButtonInputElement, ["html|ImageButtonInputElement", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.ImageButtonInputElement, () => ['new']);
  dart.setLibraryUri(html$.ImageButtonInputElement, I[167]);
  html$.ResetButtonInputElement = class ResetButtonInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "reset"});
    }
    static ['_#new#tearOff']() {
      return html$.ResetButtonInputElement.new();
    }
  };
  (html$.ResetButtonInputElement[dart.mixinNew] = function() {
  }).prototype = html$.ResetButtonInputElement.prototype;
  dart.addRtiResources(html$.ResetButtonInputElement, ["html|ResetButtonInputElement", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.ResetButtonInputElement, () => ['new']);
  dart.setLibraryUri(html$.ResetButtonInputElement, I[167]);
  html$.ButtonInputElement = class ButtonInputElement extends core.Object {
    static new() {
      return html$.InputElement.new({type: "button"});
    }
    static ['_#new#tearOff']() {
      return html$.ButtonInputElement.new();
    }
  };
  (html$.ButtonInputElement[dart.mixinNew] = function() {
  }).prototype = html$.ButtonInputElement.prototype;
  dart.addRtiResources(html$.ButtonInputElement, ["html|ButtonInputElement", "html|InputElementBase", "html|Element", "html|Node", "html|ParentNode", "html|ChildNode", "html|NonDocumentTypeChildNode", "html|GlobalEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.ButtonInputElement, () => ['new']);
  dart.setLibraryUri(html$.ButtonInputElement, I[167]);
  html$.InstallEvent = class InstallEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.InstallEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 19874, 31, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.InstallEvent._create_1(type, eventInitDict_1);
      }
      return html$.InstallEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 19874, 31, "type");
      return html$.InstallEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new InstallEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new InstallEvent(type);
    }
    [S$1.$registerForeignFetch](options) {
      if (options == null) dart.nullFailed(I[166], 19886, 33, "options");
      let options_1 = html_common.convertDartToNative_Dictionary(options);
      this[S$1._registerForeignFetch_1](options_1);
      return;
    }
    [S$1._registerForeignFetch_1](...args) {
      return this.registerForeignFetch.apply(this, args);
    }
  };
  dart.addRtiResources(html$.InstallEvent, ["html|InstallEvent"]);
  dart.setMethodSignature(html$.InstallEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$registerForeignFetch]: T$2.MapTovoid(),
    [S$1._registerForeignFetch_1]: T$.dynamicTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.InstallEvent))));
  dart.setStaticMethodSignature(html$.InstallEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.InstallEvent, I[167]);
  dart.registerExtension("InstallEvent", html$.InstallEvent);
  html$.IntersectionObserver = class IntersectionObserver$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.IntersectionObserver.__();
    }
    static new(callback, options = null) {
      if (callback == null) dart.nullFailed(I[166], 19906, 61, "callback");
      if (options != null) {
        let callback_1 = _js_helper.convertDartClosureToJS(T$5.ListAndIntersectionObserverTovoid(), callback, 2);
        let options_2 = html_common.convertDartToNative_Dictionary(options);
        return html$.IntersectionObserver._create_1(callback_1, options_2);
      }
      let callback_1 = _js_helper.convertDartClosureToJS(T$5.ListAndIntersectionObserverTovoid(), callback, 2);
      return html$.IntersectionObserver._create_2(callback_1);
    }
    static ['_#new#tearOff'](callback, options = null) {
      if (callback == null) dart.nullFailed(I[166], 19906, 61, "callback");
      return html$.IntersectionObserver.new(callback, options);
    }
    static _create_1(callback, options) {
      return new IntersectionObserver(callback, options);
    }
    static _create_2(callback) {
      return new IntersectionObserver(callback);
    }
    get [S$1.$root]() {
      return this.root;
    }
    get [S$1.$rootMargin]() {
      return this.rootMargin;
    }
    get [S$1.$thresholds]() {
      return this.thresholds;
    }
    [S$1.$disconnect](...args) {
      return this.disconnect.apply(this, args);
    }
    [S.$observe](...args) {
      return this.observe.apply(this, args);
    }
    [S$1.$takeRecords](...args) {
      return this.takeRecords.apply(this, args);
    }
    [S.$unobserve](...args) {
      return this.unobserve.apply(this, args);
    }
  };
  dart.addRtiResources(html$.IntersectionObserver, ["html|IntersectionObserver"]);
  dart.setMethodSignature(html$.IntersectionObserver, () => dart.global.Object.setPrototypeOf({
    [S$1.$disconnect]: T$.VoidTovoid(),
    [S.$observe]: T$5.ElementTovoid(),
    [S$1.$takeRecords]: T$5.VoidToListOfIntersectionObserverEntry(),
    [S.$unobserve]: T$5.ElementTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.IntersectionObserver))));
  dart.setStaticMethodSignature(html$.IntersectionObserver, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.IntersectionObserver, () => dart.global.Object.setPrototypeOf({
    [S$1.$root]: T$3.ElementN(),
    [S$1.$rootMargin]: T$.StringN(),
    [S$1.$thresholds]: T$4.ListNOfnum()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.IntersectionObserver))));
  dart.setLibraryUri(html$.IntersectionObserver, I[167]);
  dart.registerExtension("IntersectionObserver", html$.IntersectionObserver);
  html$.IntersectionObserverEntry = class IntersectionObserverEntry extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.IntersectionObserverEntry.__();
    }
    get [S$1.$boundingClientRect]() {
      return this.boundingClientRect;
    }
    get [S$1.$intersectionRatio]() {
      return this.intersectionRatio;
    }
    get [S$1.$intersectionRect]() {
      return this.intersectionRect;
    }
    get [S$1.$isIntersecting]() {
      return this.isIntersecting;
    }
    get [S$1.$rootBounds]() {
      return this.rootBounds;
    }
    get [S.$target]() {
      return this.target;
    }
    get [S$.$time]() {
      return this.time;
    }
  };
  dart.addRtiResources(html$.IntersectionObserverEntry, ["html|IntersectionObserverEntry"]);
  dart.setStaticMethodSignature(html$.IntersectionObserverEntry, () => ['__']);
  dart.setGetterSignature(html$.IntersectionObserverEntry, () => dart.global.Object.setPrototypeOf({
    [S$1.$boundingClientRect]: T$5.DomRectReadOnlyN(),
    [S$1.$intersectionRatio]: T$3.numN(),
    [S$1.$intersectionRect]: T$5.DomRectReadOnlyN(),
    [S$1.$isIntersecting]: T$.boolN(),
    [S$1.$rootBounds]: T$5.DomRectReadOnlyN(),
    [S.$target]: T$3.ElementN(),
    [S$.$time]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.IntersectionObserverEntry))));
  dart.setLibraryUri(html$.IntersectionObserverEntry, I[167]);
  dart.registerExtension("IntersectionObserverEntry", html$.IntersectionObserverEntry);
  html$.InterventionReport = class InterventionReport extends html$.ReportBody {
    static ['_#_#tearOff']() {
      return html$.InterventionReport.__();
    }
    get [S$0.$lineNumber]() {
      return this.lineNumber;
    }
    get [$message]() {
      return this.message;
    }
    get [S$0.$sourceFile]() {
      return this.sourceFile;
    }
  };
  dart.addRtiResources(html$.InterventionReport, ["html|InterventionReport"]);
  dart.setStaticMethodSignature(html$.InterventionReport, () => ['__']);
  dart.setGetterSignature(html$.InterventionReport, () => dart.global.Object.setPrototypeOf({
    [S$0.$lineNumber]: T$.intN(),
    [$message]: T$.StringN(),
    [S$0.$sourceFile]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.InterventionReport))));
  dart.setLibraryUri(html$.InterventionReport, I[167]);
  dart.registerExtension("InterventionReport", html$.InterventionReport);
  html$.KeyboardEvent = class KeyboardEvent$ extends html$.UIEvent {
    static new(type, opts) {
      let t$36369;
      if (type == null) dart.nullFailed(I[166], 20013, 32, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 20015, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 20016, 12, "cancelable");
      let location = opts && 'location' in opts ? opts.location : null;
      let keyLocation = opts && 'keyLocation' in opts ? opts.keyLocation : null;
      let ctrlKey = opts && 'ctrlKey' in opts ? opts.ctrlKey : false;
      if (ctrlKey == null) dart.nullFailed(I[166], 20019, 12, "ctrlKey");
      let altKey = opts && 'altKey' in opts ? opts.altKey : false;
      if (altKey == null) dart.nullFailed(I[166], 20020, 12, "altKey");
      let shiftKey = opts && 'shiftKey' in opts ? opts.shiftKey : false;
      if (shiftKey == null) dart.nullFailed(I[166], 20021, 12, "shiftKey");
      let metaKey = opts && 'metaKey' in opts ? opts.metaKey : false;
      if (metaKey == null) dart.nullFailed(I[166], 20022, 12, "metaKey");
      if (view == null) {
        view = html$.window;
      }
      location == null ? location = (t$36369 = keyLocation, t$36369 == null ? 1 : t$36369) : null;
      let e = T$5.KeyboardEvent()[_as](html$.document[S._createEvent]("KeyboardEvent"));
      e[S$1._initKeyboardEvent](type, canBubble, cancelable, view, "", location, ctrlKey, altKey, shiftKey, metaKey);
      return e;
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 20013, 32, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 20015, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 20016, 12, "cancelable");
      let location = opts && 'location' in opts ? opts.location : null;
      let keyLocation = opts && 'keyLocation' in opts ? opts.keyLocation : null;
      let ctrlKey = opts && 'ctrlKey' in opts ? opts.ctrlKey : false;
      if (ctrlKey == null) dart.nullFailed(I[166], 20019, 12, "ctrlKey");
      let altKey = opts && 'altKey' in opts ? opts.altKey : false;
      if (altKey == null) dart.nullFailed(I[166], 20020, 12, "altKey");
      let shiftKey = opts && 'shiftKey' in opts ? opts.shiftKey : false;
      if (shiftKey == null) dart.nullFailed(I[166], 20021, 12, "shiftKey");
      let metaKey = opts && 'metaKey' in opts ? opts.metaKey : false;
      if (metaKey == null) dart.nullFailed(I[166], 20022, 12, "metaKey");
      return html$.KeyboardEvent.new(type, {view: view, canBubble: canBubble, cancelable: cancelable, location: location, keyLocation: keyLocation, ctrlKey: ctrlKey, altKey: altKey, shiftKey: shiftKey, metaKey: metaKey});
    }
    [S$1._initKeyboardEvent](type, canBubble, cancelable, view, keyIdentifier, location, ctrlKey, altKey, shiftKey, metaKey) {
      if (type == null) dart.nullFailed(I[166], 20034, 14, "type");
      if (canBubble == null) dart.nullFailed(I[166], 20035, 12, "canBubble");
      if (cancelable == null) dart.nullFailed(I[166], 20036, 12, "cancelable");
      if (keyIdentifier == null) dart.nullFailed(I[166], 20038, 14, "keyIdentifier");
      if (ctrlKey == null) dart.nullFailed(I[166], 20040, 12, "ctrlKey");
      if (altKey == null) dart.nullFailed(I[166], 20041, 12, "altKey");
      if (shiftKey == null) dart.nullFailed(I[166], 20042, 12, "shiftKey");
      if (metaKey == null) dart.nullFailed(I[166], 20043, 12, "metaKey");
      if (typeof this.initKeyEvent == "function") {
        this.initKeyEvent(type, canBubble, cancelable, view, ctrlKey, altKey, shiftKey, metaKey, 0, 0);
      } else {
        this.initKeyboardEvent(type, canBubble, cancelable, view, keyIdentifier, location, ctrlKey, altKey, shiftKey, metaKey);
      }
    }
    get [S$1.$keyCode]() {
      return this.keyCode;
    }
    get [S$1.$charCode]() {
      return this.charCode;
    }
    get [S$1.$which]() {
      return this[S$._which];
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 20076, 34, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.KeyboardEvent._create_1(type, eventInitDict_1);
      }
      return html$.KeyboardEvent._create_2(type);
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 20076, 34, "type");
      return html$.KeyboardEvent.__(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new KeyboardEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new KeyboardEvent(type);
    }
    get [S$1.$altKey]() {
      return this.altKey;
    }
    get [S$1._charCode]() {
      return this.charCode;
    }
    get [S$.$code]() {
      return this.code;
    }
    get [S$1.$ctrlKey]() {
      return this.ctrlKey;
    }
    get [S$1.$isComposing]() {
      return this.isComposing;
    }
    get [S.$key]() {
      return this.key;
    }
    get [S$1._keyCode]() {
      return this.keyCode;
    }
    get [S$0.$location]() {
      return this.location;
    }
    get [S$1.$metaKey]() {
      return this.metaKey;
    }
    get [S$1.$repeat]() {
      return this.repeat;
    }
    get [S$1.$shiftKey]() {
      return this.shiftKey;
    }
    [S$1.$getModifierState](...args) {
      return this.getModifierState.apply(this, args);
    }
  };
  dart.addRtiResources(html$.KeyboardEvent, ["html|KeyboardEvent"]);
  dart.setMethodSignature(html$.KeyboardEvent, () => dart.global.Object.setPrototypeOf({
    [S$1._initKeyboardEvent]: T$5.StringAndboolAndbool__Tovoid$1(),
    [S$1.$getModifierState]: T$.StringTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.KeyboardEvent))));
  dart.setStaticMethodSignature(html$.KeyboardEvent, () => ['new', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.KeyboardEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$keyCode]: T$.int(),
    [S$1.$charCode]: T$.int(),
    [S$1.$which]: T$.intN(),
    [S$1.$altKey]: T$.bool(),
    [S$1._charCode]: T$.int(),
    [S$.$code]: T$.StringN(),
    [S$1.$ctrlKey]: T$.bool(),
    [S$1.$isComposing]: T$.boolN(),
    [S.$key]: T$.StringN(),
    [S$1._keyCode]: T$.int(),
    [S$0.$location]: T$.int(),
    [S$1.$metaKey]: T$.bool(),
    [S$1.$repeat]: T$.boolN(),
    [S$1.$shiftKey]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.KeyboardEvent))));
  dart.setLibraryUri(html$.KeyboardEvent, I[167]);
  dart.setStaticFieldSignature(html$.KeyboardEvent, () => ['DOM_KEY_LOCATION_LEFT', 'DOM_KEY_LOCATION_NUMPAD', 'DOM_KEY_LOCATION_RIGHT', 'DOM_KEY_LOCATION_STANDARD']);
  dart.defineLazy(html$.KeyboardEvent, {
    /*html$.KeyboardEvent.DOM_KEY_LOCATION_LEFT*/get DOM_KEY_LOCATION_LEFT() {
      return 1;
    },
    /*html$.KeyboardEvent.DOM_KEY_LOCATION_NUMPAD*/get DOM_KEY_LOCATION_NUMPAD() {
      return 3;
    },
    /*html$.KeyboardEvent.DOM_KEY_LOCATION_RIGHT*/get DOM_KEY_LOCATION_RIGHT() {
      return 2;
    },
    /*html$.KeyboardEvent.DOM_KEY_LOCATION_STANDARD*/get DOM_KEY_LOCATION_STANDARD() {
      return 0;
    }
  }, false);
  dart.registerExtension("KeyboardEvent", html$.KeyboardEvent);
  html$.KeyframeEffectReadOnly = class KeyframeEffectReadOnly$ extends html$.AnimationEffectReadOnly {
    static ['_#_#tearOff']() {
      return html$.KeyframeEffectReadOnly.__();
    }
    static new(target, effect, options = null) {
      if (options != null) {
        return html$.KeyframeEffectReadOnly._create_1(target, effect, options);
      }
      return html$.KeyframeEffectReadOnly._create_2(target, effect);
    }
    static ['_#new#tearOff'](target, effect, options = null) {
      return html$.KeyframeEffectReadOnly.new(target, effect, options);
    }
    static _create_1(target, effect, options) {
      return new KeyframeEffectReadOnly(target, effect, options);
    }
    static _create_2(target, effect) {
      return new KeyframeEffectReadOnly(target, effect);
    }
  };
  dart.addRtiResources(html$.KeyframeEffectReadOnly, ["html|KeyframeEffectReadOnly"]);
  dart.setStaticMethodSignature(html$.KeyframeEffectReadOnly, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.KeyframeEffectReadOnly, I[167]);
  dart.registerExtension("KeyframeEffectReadOnly", html$.KeyframeEffectReadOnly);
  html$.KeyframeEffect = class KeyframeEffect$ extends html$.KeyframeEffectReadOnly {
    static ['_#_#tearOff']() {
      return html$.KeyframeEffect.__();
    }
    static new(target, effect, options = null) {
      if (options != null) {
        return html$.KeyframeEffect._create_1(target, effect, options);
      }
      return html$.KeyframeEffect._create_2(target, effect);
    }
    static ['_#new#tearOff'](target, effect, options = null) {
      return html$.KeyframeEffect.new(target, effect, options);
    }
    static _create_1(target, effect, options) {
      return new KeyframeEffect(target, effect, options);
    }
    static _create_2(target, effect) {
      return new KeyframeEffect(target, effect);
    }
  };
  dart.addRtiResources(html$.KeyframeEffect, ["html|KeyframeEffect"]);
  dart.setStaticMethodSignature(html$.KeyframeEffect, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.KeyframeEffect, I[167]);
  dart.registerExtension("KeyframeEffect", html$.KeyframeEffect);
  html$.LIElement = class LIElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.LIElement.__();
    }
    static new() {
      return html$.document.createElement("li");
    }
    static ['_#new#tearOff']() {
      return html$.LIElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.LIElement.created();
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  (html$.LIElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.LIElement).created.call(this);
    ;
  }).prototype = html$.LIElement.prototype;
  dart.addRtiResources(html$.LIElement, ["html|LIElement"]);
  dart.setStaticMethodSignature(html$.LIElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.LIElement, () => dart.global.Object.setPrototypeOf({[S.$value]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.LIElement))));
  dart.setSetterSignature(html$.LIElement, () => dart.global.Object.setPrototypeOf({[S.$value]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.LIElement))));
  dart.setLibraryUri(html$.LIElement, I[167]);
  dart.registerExtension("HTMLLIElement", html$.LIElement);
  html$.LabelElement = class LabelElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.LabelElement.__();
    }
    static new() {
      return html$.document.createElement("label");
    }
    static ['_#new#tearOff']() {
      return html$.LabelElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.LabelElement.created();
    }
    get [S$1.$control]() {
      return this.control;
    }
    get [S$.$form]() {
      return this.form;
    }
    get [S$1.$htmlFor]() {
      return this.htmlFor;
    }
    set [S$1.$htmlFor](value) {
      this.htmlFor = value;
    }
  };
  (html$.LabelElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.LabelElement).created.call(this);
    ;
  }).prototype = html$.LabelElement.prototype;
  dart.addRtiResources(html$.LabelElement, ["html|LabelElement"]);
  dart.setStaticMethodSignature(html$.LabelElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.LabelElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$control]: T$5.HtmlElementN(),
    [S$.$form]: T$4.FormElementN(),
    [S$1.$htmlFor]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.LabelElement))));
  dart.setSetterSignature(html$.LabelElement, () => dart.global.Object.setPrototypeOf({[S$1.$htmlFor]: T$.String()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.LabelElement))));
  dart.setLibraryUri(html$.LabelElement, I[167]);
  dart.registerExtension("HTMLLabelElement", html$.LabelElement);
  html$.LegendElement = class LegendElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.LegendElement.__();
    }
    static new() {
      return html$.document.createElement("legend");
    }
    static ['_#new#tearOff']() {
      return html$.LegendElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.LegendElement.created();
    }
    get [S$.$form]() {
      return this.form;
    }
  };
  (html$.LegendElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.LegendElement).created.call(this);
    ;
  }).prototype = html$.LegendElement.prototype;
  dart.addRtiResources(html$.LegendElement, ["html|LegendElement"]);
  dart.setStaticMethodSignature(html$.LegendElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.LegendElement, () => dart.global.Object.setPrototypeOf({[S$.$form]: T$4.FormElementN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.LegendElement))));
  dart.setLibraryUri(html$.LegendElement, I[167]);
  dart.registerExtension("HTMLLegendElement", html$.LegendElement);
  html$.LinearAccelerationSensor = class LinearAccelerationSensor$ extends html$.Accelerometer {
    static ['_#_#tearOff']() {
      return html$.LinearAccelerationSensor.__();
    }
    static new(sensorOptions = null) {
      if (sensorOptions != null) {
        let sensorOptions_1 = html_common.convertDartToNative_Dictionary(sensorOptions);
        return html$.LinearAccelerationSensor._create_1(sensorOptions_1);
      }
      return html$.LinearAccelerationSensor._create_2();
    }
    static ['_#new#tearOff'](sensorOptions = null) {
      return html$.LinearAccelerationSensor.new(sensorOptions);
    }
    static _create_1(sensorOptions) {
      return new LinearAccelerationSensor(sensorOptions);
    }
    static _create_2() {
      return new LinearAccelerationSensor();
    }
  };
  dart.addRtiResources(html$.LinearAccelerationSensor, ["html|LinearAccelerationSensor"]);
  dart.setStaticMethodSignature(html$.LinearAccelerationSensor, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.LinearAccelerationSensor, I[167]);
  dart.registerExtension("LinearAccelerationSensor", html$.LinearAccelerationSensor);
  html$.LinkElement = class LinkElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.LinkElement.__();
    }
    static new() {
      return html$.document.createElement("link");
    }
    static ['_#new#tearOff']() {
      return html$.LinkElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.LinkElement.created();
    }
    get [S$1.$as]() {
      return this.as;
    }
    set [S$1.$as](value) {
      this.as = value;
    }
    get [S$.$crossOrigin]() {
      return this.crossOrigin;
    }
    set [S$.$crossOrigin](value) {
      this.crossOrigin = value;
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$href]() {
      return this.href;
    }
    set [S$.$href](value) {
      this.href = value;
    }
    get [S$.$hreflang]() {
      return this.hreflang;
    }
    set [S$.$hreflang](value) {
      this.hreflang = value;
    }
    get [S$1.$import]() {
      return this.import;
    }
    get [S$1.$integrity]() {
      return this.integrity;
    }
    set [S$1.$integrity](value) {
      this.integrity = value;
    }
    get [S$.$media]() {
      return this.media;
    }
    set [S$.$media](value) {
      this.media = value;
    }
    get [S$.$referrerPolicy]() {
      return this.referrerPolicy;
    }
    set [S$.$referrerPolicy](value) {
      this.referrerPolicy = value;
    }
    get [S$.$rel]() {
      return this.rel;
    }
    set [S$.$rel](value) {
      this.rel = value;
    }
    get [S$1.$relList]() {
      return this.relList;
    }
    get [S$1.$scope]() {
      return this.scope;
    }
    set [S$1.$scope](value) {
      this.scope = value;
    }
    get [S$1.$sheet]() {
      return this.sheet;
    }
    get [S$1.$sizes]() {
      return this.sizes;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
    get [S$1.$supportsImport]() {
      return "import" in this;
    }
  };
  (html$.LinkElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.LinkElement).created.call(this);
    ;
  }).prototype = html$.LinkElement.prototype;
  dart.addRtiResources(html$.LinkElement, ["html|LinkElement"]);
  dart.setStaticMethodSignature(html$.LinkElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.LinkElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$as]: T$.StringN(),
    [S$.$crossOrigin]: T$.StringN(),
    [S$.$disabled]: T$.boolN(),
    [S$.$href]: T$.String(),
    [S$.$hreflang]: T$.String(),
    [S$1.$import]: T$3.DocumentN(),
    [S$1.$integrity]: T$.StringN(),
    [S$.$media]: T$.String(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$.$rel]: T$.String(),
    [S$1.$relList]: T$4.DomTokenListN(),
    [S$1.$scope]: T$.StringN(),
    [S$1.$sheet]: T$4.StyleSheetN(),
    [S$1.$sizes]: T$4.DomTokenListN(),
    [S.$type]: T$.String(),
    [S$1.$supportsImport]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.LinkElement))));
  dart.setSetterSignature(html$.LinkElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$as]: T$.StringN(),
    [S$.$crossOrigin]: T$.StringN(),
    [S$.$disabled]: T$.boolN(),
    [S$.$href]: T$.String(),
    [S$.$hreflang]: T$.String(),
    [S$1.$integrity]: T$.StringN(),
    [S$.$media]: T$.String(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$.$rel]: T$.String(),
    [S$1.$scope]: T$.StringN(),
    [S.$type]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.LinkElement))));
  dart.setLibraryUri(html$.LinkElement, I[167]);
  dart.registerExtension("HTMLLinkElement", html$.LinkElement);
  html$.Location = class Location extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Location.__();
    }
    get [S$1.$ancestorOrigins]() {
      return this.ancestorOrigins;
    }
    get [S$.$hash]() {
      return this.hash;
    }
    set [S$.$hash](value) {
      this.hash = value;
    }
    get [S$.$host]() {
      return this.host;
    }
    set [S$.$host](value) {
      this.host = value;
    }
    get [S$.$hostname]() {
      return this.hostname;
    }
    set [S$.$hostname](value) {
      this.hostname = value;
    }
    get [S$.$href]() {
      return this.href;
    }
    set [S$.$href](value) {
      this.href = value;
    }
    get [S$.$pathname]() {
      return this.pathname;
    }
    set [S$.$pathname](value) {
      this.pathname = value;
    }
    get [S$.$port]() {
      return this.port;
    }
    set [S$.$port](value) {
      this.port = value;
    }
    get [S$.$protocol]() {
      return this.protocol;
    }
    set [S$.$protocol](value) {
      this.protocol = value;
    }
    get [S$.$search]() {
      return this.search;
    }
    set [S$.$search](value) {
      this.search = value;
    }
    get [S$1.$trustedHref]() {
      return this.trustedHref;
    }
    set [S$1.$trustedHref](value) {
      this.trustedHref = value;
    }
    [S$1.$assign](...args) {
      return this.assign.apply(this, args);
    }
    [S$1.$reload](...args) {
      return this.reload.apply(this, args);
    }
    [S$1.$replace](...args) {
      return this.replace.apply(this, args);
    }
    get [S$.$origin]() {
      if ("origin" in this) {
        return this.origin;
      }
      return dart.str(this.protocol) + "//" + dart.str(this.host);
    }
    [$toString]() {
      return String(this);
    }
  };
  dart.addRtiResources(html$.Location, ["html|Location", "html|LocationBase"]);
  dart.setMethodSignature(html$.Location, () => dart.global.Object.setPrototypeOf({
    [S$1.$assign]: T$4.StringNTovoid$1(),
    [S$1.$reload]: T$.VoidTovoid(),
    [S$1.$replace]: T$2.StringNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Location))));
  dart.setStaticMethodSignature(html$.Location, () => ['__']);
  dart.setGetterSignature(html$.Location, () => dart.global.Object.setPrototypeOf({
    [S$1.$ancestorOrigins]: T$.ListNOfString(),
    [S$.$hash]: T$.String(),
    [S$.$host]: T$.String(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.String(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.String(),
    [S$.$protocol]: T$.String(),
    [S$.$search]: T$.StringN(),
    [S$1.$trustedHref]: T$5.TrustedUrlN(),
    [S$.$origin]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Location))));
  dart.setSetterSignature(html$.Location, () => dart.global.Object.setPrototypeOf({
    [S$.$hash]: T$.String(),
    [S$.$host]: T$.String(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.String(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.String(),
    [S$.$protocol]: T$.String(),
    [S$.$search]: T$.StringN(),
    [S$1.$trustedHref]: T$5.TrustedUrlN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Location))));
  dart.setLibraryUri(html$.Location, I[167]);
  dart.registerExtension("Location", html$.Location);
  html$.Magnetometer = class Magnetometer$ extends html$.Sensor {
    static ['_#_#tearOff']() {
      return html$.Magnetometer.__();
    }
    static new(sensorOptions = null) {
      if (sensorOptions != null) {
        let sensorOptions_1 = html_common.convertDartToNative_Dictionary(sensorOptions);
        return html$.Magnetometer._create_1(sensorOptions_1);
      }
      return html$.Magnetometer._create_2();
    }
    static ['_#new#tearOff'](sensorOptions = null) {
      return html$.Magnetometer.new(sensorOptions);
    }
    static _create_1(sensorOptions) {
      return new Magnetometer(sensorOptions);
    }
    static _create_2() {
      return new Magnetometer();
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$z]() {
      return this.z;
    }
  };
  dart.addRtiResources(html$.Magnetometer, ["html|Magnetometer"]);
  dart.setStaticMethodSignature(html$.Magnetometer, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.Magnetometer, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Magnetometer))));
  dart.setLibraryUri(html$.Magnetometer, I[167]);
  dart.registerExtension("Magnetometer", html$.Magnetometer);
  html$.MapElement = class MapElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.MapElement.__();
    }
    static new() {
      return html$.document.createElement("map");
    }
    static ['_#new#tearOff']() {
      return html$.MapElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.MapElement.created();
    }
    get [S$1.$areas]() {
      return this.areas;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
  };
  (html$.MapElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.MapElement).created.call(this);
    ;
  }).prototype = html$.MapElement.prototype;
  dart.addRtiResources(html$.MapElement, ["html|MapElement"]);
  dart.setStaticMethodSignature(html$.MapElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.MapElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$areas]: T$3.ListOfNode$1(),
    [$name]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MapElement))));
  dart.setSetterSignature(html$.MapElement, () => dart.global.Object.setPrototypeOf({[$name]: T$.String()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MapElement))));
  dart.setLibraryUri(html$.MapElement, I[167]);
  dart.registerExtension("HTMLMapElement", html$.MapElement);
  html$.MathMLElement = class MathMLElement extends html$.Element {
    static ['_#_#tearOff']() {
      return html$.MathMLElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.MathMLElement.created();
    }
  };
  (html$.MathMLElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.MathMLElement).created.call(this);
    ;
  }).prototype = html$.MathMLElement.prototype;
  dart.addRtiResources(html$.MathMLElement, ["html|MathMLElement"]);
  dart.setStaticMethodSignature(html$.MathMLElement, () => ['__']);
  dart.setLibraryUri(html$.MathMLElement, I[167]);
  dart.registerExtension("MathMLElement", html$.MathMLElement);
  html$.MediaCapabilities = class MediaCapabilities extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaCapabilities.__();
    }
    [S$1.$decodingInfo](configuration) {
      if (configuration == null) dart.nullFailed(I[166], 20515, 50, "configuration");
      let configuration_dict = html_common.convertDartToNative_Dictionary(configuration);
      return js_util.promiseToFuture(T$5.MediaCapabilitiesInfo(), this.decodingInfo(configuration_dict));
    }
    [S$1.$encodingInfo](configuration) {
      if (configuration == null) dart.nullFailed(I[166], 20524, 50, "configuration");
      let configuration_dict = html_common.convertDartToNative_Dictionary(configuration);
      return js_util.promiseToFuture(T$5.MediaCapabilitiesInfo(), this.encodingInfo(configuration_dict));
    }
  };
  dart.addRtiResources(html$.MediaCapabilities, ["html|MediaCapabilities"]);
  dart.setMethodSignature(html$.MediaCapabilities, () => dart.global.Object.setPrototypeOf({
    [S$1.$decodingInfo]: T$5.MapToFutureOfMediaCapabilitiesInfo(),
    [S$1.$encodingInfo]: T$5.MapToFutureOfMediaCapabilitiesInfo()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaCapabilities))));
  dart.setStaticMethodSignature(html$.MediaCapabilities, () => ['__']);
  dart.setLibraryUri(html$.MediaCapabilities, I[167]);
  dart.registerExtension("MediaCapabilities", html$.MediaCapabilities);
  html$.MediaCapabilitiesInfo = class MediaCapabilitiesInfo extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaCapabilitiesInfo.__();
    }
    get [S$1.$powerEfficient]() {
      return this.powerEfficient;
    }
    get [S$1.$smooth]() {
      return this.smooth;
    }
    get [S$1.$supported]() {
      return this.supported;
    }
  };
  dart.addRtiResources(html$.MediaCapabilitiesInfo, ["html|MediaCapabilitiesInfo"]);
  dart.setStaticMethodSignature(html$.MediaCapabilitiesInfo, () => ['__']);
  dart.setGetterSignature(html$.MediaCapabilitiesInfo, () => dart.global.Object.setPrototypeOf({
    [S$1.$powerEfficient]: T$.boolN(),
    [S$1.$smooth]: T$.boolN(),
    [S$1.$supported]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaCapabilitiesInfo))));
  dart.setLibraryUri(html$.MediaCapabilitiesInfo, I[167]);
  dart.registerExtension("MediaCapabilitiesInfo", html$.MediaCapabilitiesInfo);
  html$.MediaDeviceInfo = class MediaDeviceInfo extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaDeviceInfo.__();
    }
    get [S$1.$deviceId]() {
      return this.deviceId;
    }
    get [S$1.$groupId]() {
      return this.groupId;
    }
    get [S$.$kind]() {
      return this.kind;
    }
    get [S$.$label]() {
      return this.label;
    }
  };
  dart.addRtiResources(html$.MediaDeviceInfo, ["html|MediaDeviceInfo"]);
  dart.setStaticMethodSignature(html$.MediaDeviceInfo, () => ['__']);
  dart.setGetterSignature(html$.MediaDeviceInfo, () => dart.global.Object.setPrototypeOf({
    [S$1.$deviceId]: T$.StringN(),
    [S$1.$groupId]: T$.StringN(),
    [S$.$kind]: T$.StringN(),
    [S$.$label]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaDeviceInfo))));
  dart.setLibraryUri(html$.MediaDeviceInfo, I[167]);
  dart.registerExtension("MediaDeviceInfo", html$.MediaDeviceInfo);
  html$.MediaDevices = class MediaDevices extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.MediaDevices.__();
    }
    [S$1.$enumerateDevices]() {
      return js_util.promiseToFuture(T$.List(), this.enumerateDevices());
    }
    [S$1.$getSupportedConstraints]() {
      return dart.nullCheck(html_common.convertNativeToDart_Dictionary(this[S$1._getSupportedConstraints_1]()));
    }
    [S$1._getSupportedConstraints_1](...args) {
      return this.getSupportedConstraints.apply(this, args);
    }
    [S$1.$getUserMedia](constraints = null) {
      let constraints_dict = null;
      if (constraints != null) {
        constraints_dict = html_common.convertDartToNative_Dictionary(constraints);
      }
      return js_util.promiseToFuture(T$5.MediaStream(), this.getUserMedia(constraints_dict));
    }
  };
  dart.addRtiResources(html$.MediaDevices, ["html|MediaDevices"]);
  dart.setMethodSignature(html$.MediaDevices, () => dart.global.Object.setPrototypeOf({
    [S$1.$enumerateDevices]: T$4.VoidToFutureOfList(),
    [S$1.$getSupportedConstraints]: T$4.VoidToMap(),
    [S$1._getSupportedConstraints_1]: T$.VoidTodynamic(),
    [S$1.$getUserMedia]: T$5.MapNToFutureOfMediaStream()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaDevices))));
  dart.setStaticMethodSignature(html$.MediaDevices, () => ['__']);
  dart.setLibraryUri(html$.MediaDevices, I[167]);
  dart.registerExtension("MediaDevices", html$.MediaDevices);
  html$.MediaEncryptedEvent = class MediaEncryptedEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.MediaEncryptedEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 20767, 38, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.MediaEncryptedEvent._create_1(type, eventInitDict_1);
      }
      return html$.MediaEncryptedEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 20767, 38, "type");
      return html$.MediaEncryptedEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new MediaEncryptedEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new MediaEncryptedEvent(type);
    }
    get [S$1.$initData]() {
      return this.initData;
    }
    get [S$1.$initDataType]() {
      return this.initDataType;
    }
  };
  dart.addRtiResources(html$.MediaEncryptedEvent, ["html|MediaEncryptedEvent"]);
  dart.setStaticMethodSignature(html$.MediaEncryptedEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.MediaEncryptedEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$initData]: T$4.ByteBufferN(),
    [S$1.$initDataType]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaEncryptedEvent))));
  dart.setLibraryUri(html$.MediaEncryptedEvent, I[167]);
  dart.registerExtension("MediaEncryptedEvent", html$.MediaEncryptedEvent);
  html$.MediaError = class MediaError extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaError.__();
    }
    get [S$.$code]() {
      return this.code;
    }
    get [$message]() {
      return this.message;
    }
  };
  dart.addRtiResources(html$.MediaError, ["html|MediaError"]);
  dart.setStaticMethodSignature(html$.MediaError, () => ['__']);
  dart.setGetterSignature(html$.MediaError, () => dart.global.Object.setPrototypeOf({
    [S$.$code]: T$.int(),
    [$message]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaError))));
  dart.setLibraryUri(html$.MediaError, I[167]);
  dart.setStaticFieldSignature(html$.MediaError, () => ['MEDIA_ERR_ABORTED', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_SRC_NOT_SUPPORTED']);
  dart.defineLazy(html$.MediaError, {
    /*html$.MediaError.MEDIA_ERR_ABORTED*/get MEDIA_ERR_ABORTED() {
      return 1;
    },
    /*html$.MediaError.MEDIA_ERR_DECODE*/get MEDIA_ERR_DECODE() {
      return 3;
    },
    /*html$.MediaError.MEDIA_ERR_NETWORK*/get MEDIA_ERR_NETWORK() {
      return 2;
    },
    /*html$.MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED*/get MEDIA_ERR_SRC_NOT_SUPPORTED() {
      return 4;
    }
  }, false);
  dart.registerExtension("MediaError", html$.MediaError);
  html$.MediaKeyMessageEvent = class MediaKeyMessageEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.MediaKeyMessageEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 20821, 39, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 20821, 49, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.MediaKeyMessageEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 20821, 39, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 20821, 49, "eventInitDict");
      return html$.MediaKeyMessageEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new MediaKeyMessageEvent(type, eventInitDict);
    }
    get [$message]() {
      return this.message;
    }
    get [S$1.$messageType]() {
      return this.messageType;
    }
  };
  dart.addRtiResources(html$.MediaKeyMessageEvent, ["html|MediaKeyMessageEvent"]);
  dart.setStaticMethodSignature(html$.MediaKeyMessageEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.MediaKeyMessageEvent, () => dart.global.Object.setPrototypeOf({
    [$message]: T$4.ByteBufferN(),
    [S$1.$messageType]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaKeyMessageEvent))));
  dart.setLibraryUri(html$.MediaKeyMessageEvent, I[167]);
  dart.registerExtension("MediaKeyMessageEvent", html$.MediaKeyMessageEvent);
  html$.MediaKeySession = class MediaKeySession extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.MediaKeySession.__();
    }
    get [S$1.$closed]() {
      return js_util.promiseToFuture(T$.void(), this.closed);
    }
    get [S$1.$expiration]() {
      return this.expiration;
    }
    get [S$1.$keyStatuses]() {
      return this.keyStatuses;
    }
    get [S$1.$sessionId]() {
      return this.sessionId;
    }
    [S.$close]() {
      return js_util.promiseToFuture(T$.dynamic(), this.close());
    }
    [S$1.$generateRequest](initDataType, initData) {
      if (initDataType == null) dart.nullFailed(I[166], 20859, 33, "initDataType");
      return js_util.promiseToFuture(T$.dynamic(), this.generateRequest(initDataType, initData));
    }
    [S$.$load](sessionId) {
      if (sessionId == null) dart.nullFailed(I[166], 20863, 22, "sessionId");
      return js_util.promiseToFuture(T$.dynamic(), this.load(sessionId));
    }
    [$remove]() {
      return js_util.promiseToFuture(T$.dynamic(), this.remove());
    }
    [S$1._update$1](...args) {
      return this.update.apply(this, args);
    }
    get [S$.$onMessage]() {
      return html$.MediaKeySession.messageEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.MediaKeySession, ["html|MediaKeySession"]);
  dart.setMethodSignature(html$.MediaKeySession, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$.VoidToFuture(),
    [S$1.$generateRequest]: T$5.StringAnddynamicToFuture(),
    [S$.$load]: T$4.StringToFuture(),
    [$remove]: T$.VoidToFuture(),
    [S$1._update$1]: T$.dynamicToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaKeySession))));
  dart.setStaticMethodSignature(html$.MediaKeySession, () => ['__']);
  dart.setGetterSignature(html$.MediaKeySession, () => dart.global.Object.setPrototypeOf({
    [S$1.$closed]: T$1.FutureOfvoid(),
    [S$1.$expiration]: T$3.numN(),
    [S$1.$keyStatuses]: T$5.MediaKeyStatusMapN(),
    [S$1.$sessionId]: T$.StringN(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaKeySession))));
  dart.setLibraryUri(html$.MediaKeySession, I[167]);
  dart.setStaticFieldSignature(html$.MediaKeySession, () => ['messageEvent']);
  dart.defineLazy(html$.MediaKeySession, {
    /*html$.MediaKeySession.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    }
  }, false);
  dart.registerExtension("MediaKeySession", html$.MediaKeySession);
  html$.MediaKeyStatusMap = class MediaKeyStatusMap extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaKeyStatusMap.__();
    }
    get [S$.$size]() {
      return this.size;
    }
    [S.$get](...args) {
      return this.get.apply(this, args);
    }
    [S$.$has](...args) {
      return this.has.apply(this, args);
    }
  };
  dart.addRtiResources(html$.MediaKeyStatusMap, ["html|MediaKeyStatusMap"]);
  dart.setMethodSignature(html$.MediaKeyStatusMap, () => dart.global.Object.setPrototypeOf({
    [S.$get]: T$.dynamicToObjectN(),
    [S$.$has]: T$.dynamicTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaKeyStatusMap))));
  dart.setStaticMethodSignature(html$.MediaKeyStatusMap, () => ['__']);
  dart.setGetterSignature(html$.MediaKeyStatusMap, () => dart.global.Object.setPrototypeOf({[S$.$size]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaKeyStatusMap))));
  dart.setLibraryUri(html$.MediaKeyStatusMap, I[167]);
  dart.registerExtension("MediaKeyStatusMap", html$.MediaKeyStatusMap);
  html$.MediaKeySystemAccess = class MediaKeySystemAccess extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaKeySystemAccess.__();
    }
    get [S$1.$keySystem]() {
      return this.keySystem;
    }
    [S$1.$createMediaKeys]() {
      return js_util.promiseToFuture(T$.dynamic(), this.createMediaKeys());
    }
    [S$1.$getConfiguration]() {
      return dart.nullCheck(html_common.convertNativeToDart_Dictionary(this[S$1._getConfiguration_1]()));
    }
    [S$1._getConfiguration_1](...args) {
      return this.getConfiguration.apply(this, args);
    }
  };
  dart.addRtiResources(html$.MediaKeySystemAccess, ["html|MediaKeySystemAccess"]);
  dart.setMethodSignature(html$.MediaKeySystemAccess, () => dart.global.Object.setPrototypeOf({
    [S$1.$createMediaKeys]: T$.VoidToFuture(),
    [S$1.$getConfiguration]: T$4.VoidToMap(),
    [S$1._getConfiguration_1]: T$.VoidTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaKeySystemAccess))));
  dart.setStaticMethodSignature(html$.MediaKeySystemAccess, () => ['__']);
  dart.setGetterSignature(html$.MediaKeySystemAccess, () => dart.global.Object.setPrototypeOf({[S$1.$keySystem]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaKeySystemAccess))));
  dart.setLibraryUri(html$.MediaKeySystemAccess, I[167]);
  dart.registerExtension("MediaKeySystemAccess", html$.MediaKeySystemAccess);
  html$.MediaKeys = class MediaKeys extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaKeys.__();
    }
    [S$1._createSession](...args) {
      return this.createSession.apply(this, args);
    }
    [S$1.$getStatusForPolicy](policy) {
      if (policy == null) dart.nullFailed(I[166], 20927, 45, "policy");
      return js_util.promiseToFuture(T$.dynamic(), this.getStatusForPolicy(policy));
    }
    [S$1.$setServerCertificate](serverCertificate) {
      return js_util.promiseToFuture(T$.dynamic(), this.setServerCertificate(serverCertificate));
    }
  };
  dart.addRtiResources(html$.MediaKeys, ["html|MediaKeys"]);
  dart.setMethodSignature(html$.MediaKeys, () => dart.global.Object.setPrototypeOf({
    [S$1._createSession]: T$5.StringNToMediaKeySession(),
    [S$1.$getStatusForPolicy]: T$5.MediaKeysPolicyToFuture(),
    [S$1.$setServerCertificate]: T$.dynamicToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaKeys))));
  dart.setStaticMethodSignature(html$.MediaKeys, () => ['__']);
  dart.setLibraryUri(html$.MediaKeys, I[167]);
  dart.registerExtension("MediaKeys", html$.MediaKeys);
  html$.MediaKeysPolicy = class MediaKeysPolicy$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaKeysPolicy.__();
    }
    static new(init) {
      if (init == null) dart.nullFailed(I[166], 20945, 31, "init");
      let init_1 = html_common.convertDartToNative_Dictionary(init);
      return html$.MediaKeysPolicy._create_1(init_1);
    }
    static ['_#new#tearOff'](init) {
      if (init == null) dart.nullFailed(I[166], 20945, 31, "init");
      return html$.MediaKeysPolicy.new(init);
    }
    static _create_1(init) {
      return new MediaKeysPolicy(init);
    }
    get [S$1.$minHdcpVersion]() {
      return this.minHdcpVersion;
    }
  };
  dart.addRtiResources(html$.MediaKeysPolicy, ["html|MediaKeysPolicy"]);
  dart.setStaticMethodSignature(html$.MediaKeysPolicy, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.MediaKeysPolicy, () => dart.global.Object.setPrototypeOf({[S$1.$minHdcpVersion]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaKeysPolicy))));
  dart.setLibraryUri(html$.MediaKeysPolicy, I[167]);
  dart.registerExtension("MediaKeysPolicy", html$.MediaKeysPolicy);
  html$.MediaList = class MediaList extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaList.__();
    }
    get [$length]() {
      return this.length;
    }
    get [S$1.$mediaText]() {
      return this.mediaText;
    }
    set [S$1.$mediaText](value) {
      this.mediaText = value;
    }
    [S$1.$appendMedium](...args) {
      return this.appendMedium.apply(this, args);
    }
    [S$1.$deleteMedium](...args) {
      return this.deleteMedium.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.MediaList, ["html|MediaList"]);
  dart.setMethodSignature(html$.MediaList, () => dart.global.Object.setPrototypeOf({
    [S$1.$appendMedium]: T$.StringTovoid(),
    [S$1.$deleteMedium]: T$.StringTovoid(),
    [S$.$item]: T$0.intToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaList))));
  dart.setStaticMethodSignature(html$.MediaList, () => ['__']);
  dart.setGetterSignature(html$.MediaList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.intN(),
    [S$1.$mediaText]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaList))));
  dart.setSetterSignature(html$.MediaList, () => dart.global.Object.setPrototypeOf({[S$1.$mediaText]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MediaList))));
  dart.setLibraryUri(html$.MediaList, I[167]);
  dart.registerExtension("MediaList", html$.MediaList);
  html$.MediaMetadata = class MediaMetadata$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaMetadata.__();
    }
    static new(metadata = null) {
      if (metadata != null) {
        let metadata_1 = html_common.convertDartToNative_Dictionary(metadata);
        return html$.MediaMetadata._create_1(metadata_1);
      }
      return html$.MediaMetadata._create_2();
    }
    static ['_#new#tearOff'](metadata = null) {
      return html$.MediaMetadata.new(metadata);
    }
    static _create_1(metadata) {
      return new MediaMetadata(metadata);
    }
    static _create_2() {
      return new MediaMetadata();
    }
    get [S$1.$album]() {
      return this.album;
    }
    set [S$1.$album](value) {
      this.album = value;
    }
    get [S$1.$artist]() {
      return this.artist;
    }
    set [S$1.$artist](value) {
      this.artist = value;
    }
    get [S$1.$artwork]() {
      return this.artwork;
    }
    set [S$1.$artwork](value) {
      this.artwork = value;
    }
    get [S.$title]() {
      return this.title;
    }
    set [S.$title](value) {
      this.title = value;
    }
  };
  dart.addRtiResources(html$.MediaMetadata, ["html|MediaMetadata"]);
  dart.setStaticMethodSignature(html$.MediaMetadata, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.MediaMetadata, () => dart.global.Object.setPrototypeOf({
    [S$1.$album]: T$.StringN(),
    [S$1.$artist]: T$.StringN(),
    [S$1.$artwork]: T$.ListN(),
    [S.$title]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaMetadata))));
  dart.setSetterSignature(html$.MediaMetadata, () => dart.global.Object.setPrototypeOf({
    [S$1.$album]: T$.StringN(),
    [S$1.$artist]: T$.StringN(),
    [S$1.$artwork]: T$.ListN(),
    [S.$title]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MediaMetadata))));
  dart.setLibraryUri(html$.MediaMetadata, I[167]);
  dart.registerExtension("MediaMetadata", html$.MediaMetadata);
  html$.MediaQueryList = class MediaQueryList extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.MediaQueryList.__();
    }
    get [S.$matches]() {
      return this.matches;
    }
    get [S$.$media]() {
      return this.media;
    }
    [S$1.$addListener](...args) {
      return this.addListener.apply(this, args);
    }
    [S$1.$removeListener](...args) {
      return this.removeListener.apply(this, args);
    }
    get [S.$onChange]() {
      return html$.MediaQueryList.changeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.MediaQueryList, ["html|MediaQueryList"]);
  dart.setMethodSignature(html$.MediaQueryList, () => dart.global.Object.setPrototypeOf({
    [S$1.$addListener]: T$5.FnTovoid$32(),
    [S$1.$removeListener]: T$5.FnTovoid$32()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaQueryList))));
  dart.setStaticMethodSignature(html$.MediaQueryList, () => ['__']);
  dart.setGetterSignature(html$.MediaQueryList, () => dart.global.Object.setPrototypeOf({
    [S.$matches]: T$.bool(),
    [S$.$media]: T$.String(),
    [S.$onChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaQueryList))));
  dart.setLibraryUri(html$.MediaQueryList, I[167]);
  dart.setStaticFieldSignature(html$.MediaQueryList, () => ['changeEvent']);
  dart.defineLazy(html$.MediaQueryList, {
    /*html$.MediaQueryList.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    }
  }, false);
  dart.registerExtension("MediaQueryList", html$.MediaQueryList);
  html$.MediaQueryListEvent = class MediaQueryListEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.MediaQueryListEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21053, 38, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.MediaQueryListEvent._create_1(type, eventInitDict_1);
      }
      return html$.MediaQueryListEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21053, 38, "type");
      return html$.MediaQueryListEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new MediaQueryListEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new MediaQueryListEvent(type);
    }
    get [S.$matches]() {
      return this.matches;
    }
    get [S$.$media]() {
      return this.media;
    }
  };
  dart.addRtiResources(html$.MediaQueryListEvent, ["html|MediaQueryListEvent"]);
  dart.setStaticMethodSignature(html$.MediaQueryListEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.MediaQueryListEvent, () => dart.global.Object.setPrototypeOf({
    [S.$matches]: T$.boolN(),
    [S$.$media]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaQueryListEvent))));
  dart.setLibraryUri(html$.MediaQueryListEvent, I[167]);
  dart.registerExtension("MediaQueryListEvent", html$.MediaQueryListEvent);
  html$.MediaRecorder = class MediaRecorder$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.MediaRecorder.__();
    }
    static new(stream, options = null) {
      if (stream == null) dart.nullFailed(I[166], 21089, 37, "stream");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return html$.MediaRecorder._create_1(stream, options_1);
      }
      return html$.MediaRecorder._create_2(stream);
    }
    static ['_#new#tearOff'](stream, options = null) {
      if (stream == null) dart.nullFailed(I[166], 21089, 37, "stream");
      return html$.MediaRecorder.new(stream, options);
    }
    static _create_1(stream, options) {
      return new MediaRecorder(stream, options);
    }
    static _create_2(stream) {
      return new MediaRecorder(stream);
    }
    get [S$1.$audioBitsPerSecond]() {
      return this.audioBitsPerSecond;
    }
    get [S$1.$mimeType]() {
      return this.mimeType;
    }
    get [S$.$state]() {
      return this.state;
    }
    get [S$1.$stream]() {
      return this.stream;
    }
    get [S$1.$videoBitsPerSecond]() {
      return this.videoBitsPerSecond;
    }
    [S$.$pause](...args) {
      return this.pause.apply(this, args);
    }
    [S$1.$requestData](...args) {
      return this.requestData.apply(this, args);
    }
    [S$1.$resume](...args) {
      return this.resume.apply(this, args);
    }
    [S$.$start](...args) {
      return this.start.apply(this, args);
    }
    [S$.$stop](...args) {
      return this.stop.apply(this, args);
    }
    get [S.$onError]() {
      return html$.MediaRecorder.errorEvent.forTarget(this);
    }
    get [S$.$onPause]() {
      return html$.MediaRecorder.pauseEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.MediaRecorder, ["html|MediaRecorder"]);
  dart.setMethodSignature(html$.MediaRecorder, () => dart.global.Object.setPrototypeOf({
    [S$.$pause]: T$.VoidTovoid(),
    [S$1.$requestData]: T$.VoidTovoid(),
    [S$1.$resume]: T$.VoidTovoid(),
    [S$.$start]: T$4.intNTovoid$1(),
    [S$.$stop]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaRecorder))));
  dart.setStaticMethodSignature(html$.MediaRecorder, () => ['__', 'new', '_create_1', '_create_2', 'isTypeSupported']);
  dart.setGetterSignature(html$.MediaRecorder, () => dart.global.Object.setPrototypeOf({
    [S$1.$audioBitsPerSecond]: T$.intN(),
    [S$1.$mimeType]: T$.StringN(),
    [S$.$state]: T$.StringN(),
    [S$1.$stream]: T$4.MediaStreamN(),
    [S$1.$videoBitsPerSecond]: T$.intN(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S$.$onPause]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaRecorder))));
  dart.setLibraryUri(html$.MediaRecorder, I[167]);
  dart.setStaticFieldSignature(html$.MediaRecorder, () => ['errorEvent', 'pauseEvent']);
  dart.defineLazy(html$.MediaRecorder, {
    /*html$.MediaRecorder.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.MediaRecorder.pauseEvent*/get pauseEvent() {
      return C[320] || CT.C320;
    }
  }, false);
  dart.registerExtension("MediaRecorder", html$.MediaRecorder);
  html$.MediaSession = class MediaSession extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaSession.__();
    }
    get [S$1.$metadata]() {
      return this.metadata;
    }
    set [S$1.$metadata](value) {
      this.metadata = value;
    }
    get [S$1.$playbackState]() {
      return this.playbackState;
    }
    set [S$1.$playbackState](value) {
      this.playbackState = value;
    }
    [S$1.$setActionHandler](...args) {
      return this.setActionHandler.apply(this, args);
    }
  };
  dart.addRtiResources(html$.MediaSession, ["html|MediaSession"]);
  dart.setMethodSignature(html$.MediaSession, () => dart.global.Object.setPrototypeOf({[S$1.$setActionHandler]: T$5.StringAndFnTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaSession))));
  dart.setStaticMethodSignature(html$.MediaSession, () => ['__']);
  dart.setGetterSignature(html$.MediaSession, () => dart.global.Object.setPrototypeOf({
    [S$1.$metadata]: T$5.MediaMetadataN(),
    [S$1.$playbackState]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaSession))));
  dart.setSetterSignature(html$.MediaSession, () => dart.global.Object.setPrototypeOf({
    [S$1.$metadata]: T$5.MediaMetadataN(),
    [S$1.$playbackState]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MediaSession))));
  dart.setLibraryUri(html$.MediaSession, I[167]);
  dart.registerExtension("MediaSession", html$.MediaSession);
  html$.MediaSettingsRange = class MediaSettingsRange extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MediaSettingsRange.__();
    }
    get [S$1.$max]() {
      return this.max;
    }
    get [S$1.$min]() {
      return this.min;
    }
    get [S$1.$step]() {
      return this.step;
    }
  };
  dart.addRtiResources(html$.MediaSettingsRange, ["html|MediaSettingsRange"]);
  dart.setStaticMethodSignature(html$.MediaSettingsRange, () => ['__']);
  dart.setGetterSignature(html$.MediaSettingsRange, () => dart.global.Object.setPrototypeOf({
    [S$1.$max]: T$3.numN(),
    [S$1.$min]: T$3.numN(),
    [S$1.$step]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaSettingsRange))));
  dart.setLibraryUri(html$.MediaSettingsRange, I[167]);
  dart.registerExtension("MediaSettingsRange", html$.MediaSettingsRange);
  html$.MediaSource = class MediaSource$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.MediaSource.__();
    }
    static new() {
      return html$.MediaSource._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.MediaSource.new();
    }
    static _create_1() {
      return new MediaSource();
    }
    static get supported() {
      return !!window.MediaSource;
    }
    get [S$1.$activeSourceBuffers]() {
      return this.activeSourceBuffers;
    }
    get [S$.$duration]() {
      return this.duration;
    }
    set [S$.$duration](value) {
      this.duration = value;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    get [S$1.$sourceBuffers]() {
      return this.sourceBuffers;
    }
    [S$1.$addSourceBuffer](...args) {
      return this.addSourceBuffer.apply(this, args);
    }
    [S$1.$clearLiveSeekableRange](...args) {
      return this.clearLiveSeekableRange.apply(this, args);
    }
    [S$1.$endOfStream](...args) {
      return this.endOfStream.apply(this, args);
    }
    [S$1.$removeSourceBuffer](...args) {
      return this.removeSourceBuffer.apply(this, args);
    }
    [S$1.$setLiveSeekableRange](...args) {
      return this.setLiveSeekableRange.apply(this, args);
    }
  };
  dart.addRtiResources(html$.MediaSource, ["html|MediaSource"]);
  dart.setMethodSignature(html$.MediaSource, () => dart.global.Object.setPrototypeOf({
    [S$1.$addSourceBuffer]: T$5.StringToSourceBuffer(),
    [S$1.$clearLiveSeekableRange]: T$.VoidTovoid(),
    [S$1.$endOfStream]: T$4.StringNTovoid$1(),
    [S$1.$removeSourceBuffer]: T$5.SourceBufferTovoid(),
    [S$1.$setLiveSeekableRange]: T$4.numAndnumTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaSource))));
  dart.setStaticMethodSignature(html$.MediaSource, () => ['__', 'new', '_create_1', 'isTypeSupported']);
  dart.setGetterSignature(html$.MediaSource, () => dart.global.Object.setPrototypeOf({
    [S$1.$activeSourceBuffers]: T$5.SourceBufferListN(),
    [S$.$duration]: T$3.numN(),
    [S.$readyState]: T$.StringN(),
    [S$1.$sourceBuffers]: T$5.SourceBufferListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaSource))));
  dart.setSetterSignature(html$.MediaSource, () => dart.global.Object.setPrototypeOf({[S$.$duration]: T$3.numN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MediaSource))));
  dart.setStaticGetterSignature(html$.MediaSource, () => ['supported']);
  dart.setLibraryUri(html$.MediaSource, I[167]);
  dart.registerExtension("MediaSource", html$.MediaSource);
  html$.MediaStream = class MediaStream$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.MediaStream.__();
    }
    static new(stream_OR_tracks = null) {
      if (stream_OR_tracks == null) {
        return html$.MediaStream._create_1();
      }
      if (T$5.MediaStream()[_is](stream_OR_tracks)) {
        return html$.MediaStream._create_2(stream_OR_tracks);
      }
      if (T$5.ListOfMediaStreamTrack()[_is](stream_OR_tracks)) {
        return html$.MediaStream._create_3(stream_OR_tracks);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](stream_OR_tracks = null) {
      return html$.MediaStream.new(stream_OR_tracks);
    }
    static _create_1() {
      return new MediaStream();
    }
    static _create_2(stream_OR_tracks) {
      return new MediaStream(stream_OR_tracks);
    }
    static _create_3(stream_OR_tracks) {
      return new MediaStream(stream_OR_tracks);
    }
    get [S$1.$active]() {
      return this.active;
    }
    get [S.$id]() {
      return this.id;
    }
    [S$1.$addTrack](...args) {
      return this.addTrack.apply(this, args);
    }
    [S$.$clone](...args) {
      return this.clone.apply(this, args);
    }
    [S$1.$getAudioTracks](...args) {
      return this.getAudioTracks.apply(this, args);
    }
    [S$1.$getTrackById](...args) {
      return this.getTrackById.apply(this, args);
    }
    [S$1.$getTracks](...args) {
      return this.getTracks.apply(this, args);
    }
    [S$1.$getVideoTracks](...args) {
      return this.getVideoTracks.apply(this, args);
    }
    [S$1.$removeTrack](...args) {
      return this.removeTrack.apply(this, args);
    }
    get [S$1.$onAddTrack]() {
      return html$.MediaStream.addTrackEvent.forTarget(this);
    }
    get [S$1.$onRemoveTrack]() {
      return html$.MediaStream.removeTrackEvent.forTarget(this);
    }
    static get supported() {
      return !!(html$.window.navigator.getUserMedia || html$.window.navigator.webkitGetUserMedia || html$.window.navigator.mozGetUserMedia || html$.window.navigator.msGetUserMedia);
    }
  };
  dart.addRtiResources(html$.MediaStream, ["html|MediaStream"]);
  dart.setMethodSignature(html$.MediaStream, () => dart.global.Object.setPrototypeOf({
    [S$1.$addTrack]: T$5.MediaStreamTrackTovoid(),
    [S$.$clone]: T$4.VoidToMediaStream(),
    [S$1.$getAudioTracks]: T$5.VoidToListOfMediaStreamTrack(),
    [S$1.$getTrackById]: T$5.StringToMediaStreamTrackN(),
    [S$1.$getTracks]: T$5.VoidToListOfMediaStreamTrack(),
    [S$1.$getVideoTracks]: T$5.VoidToListOfMediaStreamTrack(),
    [S$1.$removeTrack]: T$5.MediaStreamTrackTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MediaStream))));
  dart.setStaticMethodSignature(html$.MediaStream, () => ['__', 'new', '_create_1', '_create_2', '_create_3']);
  dart.setGetterSignature(html$.MediaStream, () => dart.global.Object.setPrototypeOf({
    [S$1.$active]: T$.boolN(),
    [S.$id]: T$.StringN(),
    [S$1.$onAddTrack]: T$3.StreamOfEvent(),
    [S$1.$onRemoveTrack]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaStream))));
  dart.setStaticGetterSignature(html$.MediaStream, () => ['supported']);
  dart.setLibraryUri(html$.MediaStream, I[167]);
  dart.setStaticFieldSignature(html$.MediaStream, () => ['addTrackEvent', 'removeTrackEvent']);
  dart.defineLazy(html$.MediaStream, {
    /*html$.MediaStream.addTrackEvent*/get addTrackEvent() {
      return C[397] || CT.C397;
    },
    /*html$.MediaStream.removeTrackEvent*/get removeTrackEvent() {
      return C[398] || CT.C398;
    }
  }, false);
  dart.registerExtension("MediaStream", html$.MediaStream);
  html$.MediaStreamEvent = class MediaStreamEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.MediaStreamEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21320, 35, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.MediaStreamEvent._create_1(type, eventInitDict_1);
      }
      return html$.MediaStreamEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21320, 35, "type");
      return html$.MediaStreamEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new MediaStreamEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new MediaStreamEvent(type);
    }
    static get supported() {
      return html_common.Device.isEventTypeSupported("MediaStreamEvent");
    }
    get [S$1.$stream]() {
      return this.stream;
    }
  };
  dart.addRtiResources(html$.MediaStreamEvent, ["html|MediaStreamEvent"]);
  dart.setStaticMethodSignature(html$.MediaStreamEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.MediaStreamEvent, () => dart.global.Object.setPrototypeOf({[S$1.$stream]: T$4.MediaStreamN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaStreamEvent))));
  dart.setStaticGetterSignature(html$.MediaStreamEvent, () => ['supported']);
  dart.setLibraryUri(html$.MediaStreamEvent, I[167]);
  dart.registerExtension("MediaStreamEvent", html$.MediaStreamEvent);
  html$.MediaStreamTrackEvent = class MediaStreamTrackEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.MediaStreamTrackEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 21449, 40, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 21449, 50, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.MediaStreamTrackEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 21449, 40, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 21449, 50, "eventInitDict");
      return html$.MediaStreamTrackEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new MediaStreamTrackEvent(type, eventInitDict);
    }
    static get supported() {
      return html_common.Device.isEventTypeSupported("MediaStreamTrackEvent");
    }
    get [S$1.$track]() {
      return this.track;
    }
  };
  dart.addRtiResources(html$.MediaStreamTrackEvent, ["html|MediaStreamTrackEvent"]);
  dart.setStaticMethodSignature(html$.MediaStreamTrackEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.MediaStreamTrackEvent, () => dart.global.Object.setPrototypeOf({[S$1.$track]: T$5.MediaStreamTrackN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MediaStreamTrackEvent))));
  dart.setStaticGetterSignature(html$.MediaStreamTrackEvent, () => ['supported']);
  dart.setLibraryUri(html$.MediaStreamTrackEvent, I[167]);
  dart.registerExtension("MediaStreamTrackEvent", html$.MediaStreamTrackEvent);
  html$.MemoryInfo = class MemoryInfo extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MemoryInfo.__();
    }
    get [S$1.$jsHeapSizeLimit]() {
      return this.jsHeapSizeLimit;
    }
    get [S$1.$totalJSHeapSize]() {
      return this.totalJSHeapSize;
    }
    get [S$1.$usedJSHeapSize]() {
      return this.usedJSHeapSize;
    }
  };
  dart.addRtiResources(html$.MemoryInfo, ["html|MemoryInfo"]);
  dart.setStaticMethodSignature(html$.MemoryInfo, () => ['__']);
  dart.setGetterSignature(html$.MemoryInfo, () => dart.global.Object.setPrototypeOf({
    [S$1.$jsHeapSizeLimit]: T$.intN(),
    [S$1.$totalJSHeapSize]: T$.intN(),
    [S$1.$usedJSHeapSize]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MemoryInfo))));
  dart.setLibraryUri(html$.MemoryInfo, I[167]);
  dart.registerExtension("MemoryInfo", html$.MemoryInfo);
  html$.MenuElement = class MenuElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.MenuElement.__();
    }
    static new() {
      return html$.document.createElement("menu");
    }
    static ['_#new#tearOff']() {
      return html$.MenuElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.MenuElement.created();
    }
  };
  (html$.MenuElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.MenuElement).created.call(this);
    ;
  }).prototype = html$.MenuElement.prototype;
  dart.addRtiResources(html$.MenuElement, ["html|MenuElement"]);
  dart.setStaticMethodSignature(html$.MenuElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.MenuElement, I[167]);
  dart.registerExtension("HTMLMenuElement", html$.MenuElement);
  html$.MessageChannel = class MessageChannel$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MessageChannel.__();
    }
    static new() {
      return html$.MessageChannel._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.MessageChannel.new();
    }
    static _create_1() {
      return new MessageChannel();
    }
    get [S$1.$port1]() {
      return this.port1;
    }
    get [S$1.$port2]() {
      return this.port2;
    }
  };
  dart.addRtiResources(html$.MessageChannel, ["html|MessageChannel"]);
  dart.setStaticMethodSignature(html$.MessageChannel, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.MessageChannel, () => dart.global.Object.setPrototypeOf({
    [S$1.$port1]: T$5.MessagePort(),
    [S$1.$port2]: T$5.MessagePort()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MessageChannel))));
  dart.setLibraryUri(html$.MessageChannel, I[167]);
  dart.registerExtension("MessageChannel", html$.MessageChannel);
  html$.MessageEvent = class MessageEvent$ extends html$.Event {
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 21552, 31, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : false;
      if (canBubble == null) dart.nullFailed(I[166], 21553, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : false;
      if (cancelable == null) dart.nullFailed(I[166], 21554, 12, "cancelable");
      let data = opts && 'data' in opts ? opts.data : null;
      let origin = opts && 'origin' in opts ? opts.origin : null;
      let lastEventId = opts && 'lastEventId' in opts ? opts.lastEventId : null;
      let source = opts && 'source' in opts ? opts.source : null;
      let messagePorts = opts && 'messagePorts' in opts ? opts.messagePorts : C[399] || CT.C399;
      if (messagePorts == null) dart.nullFailed(I[166], 21559, 25, "messagePorts");
      if (source == null) {
        source = html$.window;
      }
      if (!dart.test(html_common.Device.isIE)) {
        return new MessageEvent(type, {bubbles: canBubble, cancelable: cancelable, data: data, origin: origin, lastEventId: lastEventId, source: source, ports: messagePorts});
      }
      let event = T$5.MessageEvent()[_as](html$.document[S._createEvent]("MessageEvent"));
      event[S$1._initMessageEvent](type, canBubble, cancelable, data, origin, lastEventId, source, messagePorts);
      return event;
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 21552, 31, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : false;
      if (canBubble == null) dart.nullFailed(I[166], 21553, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : false;
      if (cancelable == null) dart.nullFailed(I[166], 21554, 12, "cancelable");
      let data = opts && 'data' in opts ? opts.data : null;
      let origin = opts && 'origin' in opts ? opts.origin : null;
      let lastEventId = opts && 'lastEventId' in opts ? opts.lastEventId : null;
      let source = opts && 'source' in opts ? opts.source : null;
      let messagePorts = opts && 'messagePorts' in opts ? opts.messagePorts : C[399] || CT.C399;
      if (messagePorts == null) dart.nullFailed(I[166], 21559, 25, "messagePorts");
      return html$.MessageEvent.new(type, {canBubble: canBubble, cancelable: cancelable, data: data, origin: origin, lastEventId: lastEventId, source: source, messagePorts: messagePorts});
    }
    get [S$.$data]() {
      return html_common.convertNativeToDart_SerializedScriptValue(this[S$1._get_data]);
    }
    get [S$1._get_data]() {
      return this.data;
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21594, 33, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.MessageEvent._create_1(type, eventInitDict_1);
      }
      return html$.MessageEvent._create_2(type);
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21594, 33, "type");
      return html$.MessageEvent.__(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new MessageEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new MessageEvent(type);
    }
    get [S$1.$lastEventId]() {
      return this.lastEventId;
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$1.$ports]() {
      return this.ports;
    }
    get [S.$source]() {
      return html$._convertNativeToDart_EventTarget(this[S$1._get_source]);
    }
    get [S$1._get_source]() {
      return this.source;
    }
    get [S$1.$suborigin]() {
      return this.suborigin;
    }
    [S$1._initMessageEvent](typeArg, canBubbleArg, cancelableArg, dataArg, originArg, lastEventIdArg, sourceArg, portsArg) {
      let sourceArg_1 = html$._convertDartToNative_EventTarget(sourceArg);
      this[S$1._initMessageEvent_1](typeArg, canBubbleArg, cancelableArg, dataArg, originArg, lastEventIdArg, sourceArg_1, portsArg);
      return;
    }
    [S$1._initMessageEvent_1](...args) {
      return this.initMessageEvent.apply(this, args);
    }
  };
  dart.addRtiResources(html$.MessageEvent, ["html|MessageEvent"]);
  dart.setMethodSignature(html$.MessageEvent, () => dart.global.Object.setPrototypeOf({
    [S$1._initMessageEvent]: T$5.StringNAndboolNAndboolN__Tovoid$1(),
    [S$1._initMessageEvent_1]: T$5.dynamicAnddynamicAnddynamic__Tovoid$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MessageEvent))));
  dart.setStaticMethodSignature(html$.MessageEvent, () => ['new', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.MessageEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$data]: T$.dynamic(),
    [S$1._get_data]: T$.dynamic(),
    [S$1.$lastEventId]: T$.String(),
    [S$.$origin]: T$.String(),
    [S$1.$ports]: T$5.ListOfMessagePort(),
    [S.$source]: T$3.EventTargetN(),
    [S$1._get_source]: T$.dynamic(),
    [S$1.$suborigin]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MessageEvent))));
  dart.setLibraryUri(html$.MessageEvent, I[167]);
  dart.registerExtension("MessageEvent", html$.MessageEvent);
  html$.MessagePort = class MessagePort extends html$.EventTarget {
    [S.$addEventListener](type, listener, useCapture = null) {
      if (type == null) dart.nullFailed(I[166], 21651, 32, "type");
      if (type === "message") {
        this[S$1._start$5]();
      }
      super[S.$addEventListener](type, listener, useCapture);
    }
    static ['_#_#tearOff']() {
      return html$.MessagePort.__();
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$.$postMessage](message, transfer = null) {
      if (transfer != null) {
        let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
        this[S$0._postMessage_1](message_1, transfer);
        return;
      }
      let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
      this[S$0._postMessage_2](message_1);
      return;
    }
    [S$0._postMessage_1](...args) {
      return this.postMessage.apply(this, args);
    }
    [S$0._postMessage_2](...args) {
      return this.postMessage.apply(this, args);
    }
    [S$1._start$5](...args) {
      return this.start.apply(this, args);
    }
    get [S$.$onMessage]() {
      return html$.MessagePort.messageEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.MessagePort, ["html|MessagePort"]);
  dart.setMethodSignature(html$.MessagePort, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$.VoidTovoid(),
    [S$.$postMessage]: T$4.dynamicAndListNOfObjectTovoid(),
    [S$0._postMessage_1]: T$4.dynamicAndListOfObjectTovoid(),
    [S$0._postMessage_2]: T$.dynamicTovoid(),
    [S$1._start$5]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MessagePort))));
  dart.setStaticMethodSignature(html$.MessagePort, () => ['__']);
  dart.setGetterSignature(html$.MessagePort, () => dart.global.Object.setPrototypeOf({[S$.$onMessage]: T$4.StreamOfMessageEvent()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MessagePort))));
  dart.setLibraryUri(html$.MessagePort, I[167]);
  dart.setStaticFieldSignature(html$.MessagePort, () => ['messageEvent']);
  dart.defineLazy(html$.MessagePort, {
    /*html$.MessagePort.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    }
  }, false);
  dart.registerExtension("MessagePort", html$.MessagePort);
  html$.MetaElement = class MetaElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.MetaElement.__();
    }
    static new() {
      return html$.document.createElement("meta");
    }
    static ['_#new#tearOff']() {
      return html$.MetaElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.MetaElement.created();
    }
    get [S$0.$content]() {
      return this.content;
    }
    set [S$0.$content](value) {
      this.content = value;
    }
    get [S$1.$httpEquiv]() {
      return this.httpEquiv;
    }
    set [S$1.$httpEquiv](value) {
      this.httpEquiv = value;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
  };
  (html$.MetaElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.MetaElement).created.call(this);
    ;
  }).prototype = html$.MetaElement.prototype;
  dart.addRtiResources(html$.MetaElement, ["html|MetaElement"]);
  dart.setStaticMethodSignature(html$.MetaElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.MetaElement, () => dart.global.Object.setPrototypeOf({
    [S$0.$content]: T$.String(),
    [S$1.$httpEquiv]: T$.StringN(),
    [$name]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MetaElement))));
  dart.setSetterSignature(html$.MetaElement, () => dart.global.Object.setPrototypeOf({
    [S$0.$content]: T$.String(),
    [S$1.$httpEquiv]: T$.StringN(),
    [$name]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MetaElement))));
  dart.setLibraryUri(html$.MetaElement, I[167]);
  dart.registerExtension("HTMLMetaElement", html$.MetaElement);
  html$.Metadata = class Metadata extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Metadata.__();
    }
    get [S$1.$modificationTime]() {
      return html_common.convertNativeToDart_DateTime(this[S$1._get_modificationTime]);
    }
    get [S$1._get_modificationTime]() {
      return this.modificationTime;
    }
    get [S$.$size]() {
      return this.size;
    }
  };
  dart.addRtiResources(html$.Metadata, ["html|Metadata"]);
  dart.setStaticMethodSignature(html$.Metadata, () => ['__']);
  dart.setGetterSignature(html$.Metadata, () => dart.global.Object.setPrototypeOf({
    [S$1.$modificationTime]: T$2.DateTime(),
    [S$1._get_modificationTime]: T$.dynamic(),
    [S$.$size]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Metadata))));
  dart.setLibraryUri(html$.Metadata, I[167]);
  dart.registerExtension("Metadata", html$.Metadata);
  html$.MeterElement = class MeterElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.MeterElement.__();
    }
    static new() {
      return T$5.MeterElement()[_as](html$.document[S.$createElement]("meter"));
    }
    static ['_#new#tearOff']() {
      return html$.MeterElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.MeterElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("meter");
    }
    get [S$1.$high]() {
      return this.high;
    }
    set [S$1.$high](value) {
      this.high = value;
    }
    get [S$.$labels]() {
      return this.labels;
    }
    get [S$1.$low]() {
      return this.low;
    }
    set [S$1.$low](value) {
      this.low = value;
    }
    get [S$1.$max]() {
      return this.max;
    }
    set [S$1.$max](value) {
      this.max = value;
    }
    get [S$1.$min]() {
      return this.min;
    }
    set [S$1.$min](value) {
      this.min = value;
    }
    get [S$1.$optimum]() {
      return this.optimum;
    }
    set [S$1.$optimum](value) {
      this.optimum = value;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  (html$.MeterElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.MeterElement).created.call(this);
    ;
  }).prototype = html$.MeterElement.prototype;
  dart.addRtiResources(html$.MeterElement, ["html|MeterElement"]);
  dart.setStaticMethodSignature(html$.MeterElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.MeterElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$high]: T$3.numN(),
    [S$.$labels]: T$4.ListNOfNode(),
    [S$1.$low]: T$3.numN(),
    [S$1.$max]: T$3.numN(),
    [S$1.$min]: T$3.numN(),
    [S$1.$optimum]: T$3.numN(),
    [S.$value]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MeterElement))));
  dart.setSetterSignature(html$.MeterElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$high]: T$3.numN(),
    [S$1.$low]: T$3.numN(),
    [S$1.$max]: T$3.numN(),
    [S$1.$min]: T$3.numN(),
    [S$1.$optimum]: T$3.numN(),
    [S.$value]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MeterElement))));
  dart.setStaticGetterSignature(html$.MeterElement, () => ['supported']);
  dart.setLibraryUri(html$.MeterElement, I[167]);
  dart.registerExtension("HTMLMeterElement", html$.MeterElement);
  html$.MidiAccess = class MidiAccess extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.MidiAccess.__();
    }
    get [S$1.$inputs]() {
      return this.inputs;
    }
    get [S$1.$outputs]() {
      return this.outputs;
    }
    get [S$1.$sysexEnabled]() {
      return this.sysexEnabled;
    }
  };
  dart.addRtiResources(html$.MidiAccess, ["html|MidiAccess"]);
  dart.setStaticMethodSignature(html$.MidiAccess, () => ['__']);
  dart.setGetterSignature(html$.MidiAccess, () => dart.global.Object.setPrototypeOf({
    [S$1.$inputs]: T$5.MidiInputMapN(),
    [S$1.$outputs]: T$5.MidiOutputMapN(),
    [S$1.$sysexEnabled]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MidiAccess))));
  dart.setLibraryUri(html$.MidiAccess, I[167]);
  dart.registerExtension("MIDIAccess", html$.MidiAccess);
  html$.MidiConnectionEvent = class MidiConnectionEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.MidiConnectionEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21845, 38, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.MidiConnectionEvent._create_1(type, eventInitDict_1);
      }
      return html$.MidiConnectionEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21845, 38, "type");
      return html$.MidiConnectionEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new MIDIConnectionEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new MIDIConnectionEvent(type);
    }
    get [S$.$port]() {
      return this.port;
    }
  };
  dart.addRtiResources(html$.MidiConnectionEvent, ["html|MidiConnectionEvent"]);
  dart.setStaticMethodSignature(html$.MidiConnectionEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.MidiConnectionEvent, () => dart.global.Object.setPrototypeOf({[S$.$port]: T.MidiPortN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MidiConnectionEvent))));
  dart.setLibraryUri(html$.MidiConnectionEvent, I[167]);
  dart.registerExtension("MIDIConnectionEvent", html$.MidiConnectionEvent);
  html$.MidiPort = class MidiPort extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.MidiPort.__();
    }
    get [S$1.$connection]() {
      return this.connection;
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$1.$manufacturer]() {
      return this.manufacturer;
    }
    get [$name]() {
      return this.name;
    }
    get [S$.$state]() {
      return this.state;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S.$version]() {
      return this.version;
    }
    [S.$close]() {
      return js_util.promiseToFuture(T$.dynamic(), this.close());
    }
    [S.$open]() {
      return js_util.promiseToFuture(T$.dynamic(), this.open());
    }
  };
  dart.addRtiResources(html$.MidiPort, ["html|MidiPort"]);
  dart.setMethodSignature(html$.MidiPort, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$.VoidToFuture(),
    [S.$open]: T$.VoidToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MidiPort))));
  dart.setStaticMethodSignature(html$.MidiPort, () => ['__']);
  dart.setGetterSignature(html$.MidiPort, () => dart.global.Object.setPrototypeOf({
    [S$1.$connection]: T$.StringN(),
    [S.$id]: T$.StringN(),
    [S$1.$manufacturer]: T$.StringN(),
    [$name]: T$.StringN(),
    [S$.$state]: T$.StringN(),
    [S.$type]: T$.StringN(),
    [S.$version]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MidiPort))));
  dart.setLibraryUri(html$.MidiPort, I[167]);
  dart.registerExtension("MIDIPort", html$.MidiPort);
  html$.MidiInput = class MidiInput extends html$.MidiPort {
    static ['_#_#tearOff']() {
      return html$.MidiInput.__();
    }
    get [S$1.$onMidiMessage]() {
      return html$.MidiInput.midiMessageEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.MidiInput, ["html|MidiInput"]);
  dart.setStaticMethodSignature(html$.MidiInput, () => ['__']);
  dart.setGetterSignature(html$.MidiInput, () => dart.global.Object.setPrototypeOf({[S$1.$onMidiMessage]: T.StreamOfMidiMessageEvent()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MidiInput))));
  dart.setLibraryUri(html$.MidiInput, I[167]);
  dart.setStaticFieldSignature(html$.MidiInput, () => ['midiMessageEvent']);
  dart.defineLazy(html$.MidiInput, {
    /*html$.MidiInput.midiMessageEvent*/get midiMessageEvent() {
      return C[400] || CT.C400;
    }
  }, false);
  dart.registerExtension("MIDIInput", html$.MidiInput);
  const JavaScriptObject_MapBase$36 = class JavaScriptObject_MapBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_MapBase$36.new = function() {
    G.MapBaseOfString$dynamic().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_MapBase$36).new.call(this);
  }).prototype = JavaScriptObject_MapBase$36.prototype;
  dart.applyMixin(JavaScriptObject_MapBase$36, G.MapBaseOfString$dynamic());
  html$.MidiInputMap = class MidiInputMap extends JavaScriptObject_MapBase$36 {
    static ['_#_#tearOff']() {
      return html$.MidiInputMap.__();
    }
    [S$1._getItem](key) {
      if (key == null) dart.nullFailed(I[166], 21897, 24, "key");
      return html_common.convertNativeToDart_Dictionary(this.get(key));
    }
    [$addAll](other) {
      T$2.MapOfString$dynamic()[_as](other);
      if (other == null) dart.nullFailed(I[166], 21900, 36, "other");
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$containsValue](value) {
      return this[$values][$any](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 21904, 52, "e");
        return dart.equals(e, value);
      }, T.MapTobool()));
    }
    [$containsKey](key) {
      return this[S$1._getItem](T$.String()[_as](key)) != null;
    }
    [$_get](key) {
      return this[S$1._getItem](T$.String()[_as](key));
    }
    [$forEach](f) {
      if (f == null) dart.nullFailed(I[166], 21910, 21, "f");
      let entries = this.entries();
      while (true) {
        let entry = entries.next();
        if (entry.done) return;
        f(entry.value[0], html_common.convertNativeToDart_Dictionary(entry.value[1]));
      }
    }
    get [$keys]() {
      let keys = G.JSArrayOfString().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 21922, 14, "k");
        return keys[$add](k);
      }, T$2.StringAnddynamicTovoid()));
      return keys;
    }
    get [$values]() {
      let values = G$.JSArrayOfMap().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 21928, 14, "k");
        return values[$add](T$.Map()[_as](v));
      }, T$2.StringAnddynamicTovoid()));
      return values;
    }
    get [$length]() {
      return this.size;
    }
    get [$isEmpty]() {
      return this[$length] === 0;
    }
    get [$isNotEmpty]() {
      return !dart.test(this[$isEmpty]);
    }
    [$_set](key, value$) {
      let value = value$;
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 21938, 28, "key");
      dart.throw(new core.UnsupportedError.new("Not supported"));
      return value$;
    }
    [$putIfAbsent](key, ifAbsent) {
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 21942, 30, "key");
      T$.VoidTodynamic()[_as](ifAbsent);
      if (ifAbsent == null) dart.nullFailed(I[166], 21942, 43, "ifAbsent");
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$remove](key) {
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$clear]() {
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
  };
  dart.addRtiResources(html$.MidiInputMap, ["html|MidiInputMap"]);
  dart.setMethodSignature(html$.MidiInputMap, () => dart.global.Object.setPrototypeOf({
    [S$1._getItem]: T.StringToMapN(),
    [$containsValue]: T$.dynamicTobool(),
    [$containsKey]: T$.dynamicTobool(),
    [$_get]: T.dynamicToMapN(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    [$remove]: T$.dynamicToString(),
    [$clear]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MidiInputMap))));
  dart.setStaticMethodSignature(html$.MidiInputMap, () => ['__']);
  dart.setGetterSignature(html$.MidiInputMap, () => dart.global.Object.setPrototypeOf({
    [$keys]: T$0.IterableOfString(),
    [$values]: T.IterableOfMap()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MidiInputMap))));
  dart.setLibraryUri(html$.MidiInputMap, I[167]);
  dart.registerExtension("MIDIInputMap", html$.MidiInputMap);
  html$.MidiMessageEvent = class MidiMessageEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.MidiMessageEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21965, 35, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.MidiMessageEvent._create_1(type, eventInitDict_1);
      }
      return html$.MidiMessageEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 21965, 35, "type");
      return html$.MidiMessageEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new MIDIMessageEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new MIDIMessageEvent(type);
    }
    get [S$.$data]() {
      return this.data;
    }
  };
  dart.addRtiResources(html$.MidiMessageEvent, ["html|MidiMessageEvent"]);
  dart.setStaticMethodSignature(html$.MidiMessageEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.MidiMessageEvent, () => dart.global.Object.setPrototypeOf({[S$.$data]: T$2.Uint8ListN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MidiMessageEvent))));
  dart.setLibraryUri(html$.MidiMessageEvent, I[167]);
  dart.registerExtension("MIDIMessageEvent", html$.MidiMessageEvent);
  html$.MidiOutput = class MidiOutput extends html$.MidiPort {
    static ['_#_#tearOff']() {
      return html$.MidiOutput.__();
    }
    [S$1.$send](...args) {
      return this.send.apply(this, args);
    }
  };
  dart.addRtiResources(html$.MidiOutput, ["html|MidiOutput"]);
  dart.setMethodSignature(html$.MidiOutput, () => dart.global.Object.setPrototypeOf({[S$1.$send]: T.Uint8ListAndnumNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MidiOutput))));
  dart.setStaticMethodSignature(html$.MidiOutput, () => ['__']);
  dart.setLibraryUri(html$.MidiOutput, I[167]);
  dart.registerExtension("MIDIOutput", html$.MidiOutput);
  const JavaScriptObject_MapBase$36$ = class JavaScriptObject_MapBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_MapBase$36$.new = function() {
    G.MapBaseOfString$dynamic().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_MapBase$36$).new.call(this);
  }).prototype = JavaScriptObject_MapBase$36$.prototype;
  dart.applyMixin(JavaScriptObject_MapBase$36$, G.MapBaseOfString$dynamic());
  html$.MidiOutputMap = class MidiOutputMap extends JavaScriptObject_MapBase$36$ {
    static ['_#_#tearOff']() {
      return html$.MidiOutputMap.__();
    }
    [S$1._getItem](key) {
      if (key == null) dart.nullFailed(I[166], 22003, 24, "key");
      return html_common.convertNativeToDart_Dictionary(this.get(key));
    }
    [$addAll](other) {
      T$2.MapOfString$dynamic()[_as](other);
      if (other == null) dart.nullFailed(I[166], 22006, 36, "other");
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$containsValue](value) {
      return this[$values][$any](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 22010, 52, "e");
        return dart.equals(e, value);
      }, T.MapTobool()));
    }
    [$containsKey](key) {
      return this[S$1._getItem](T$.String()[_as](key)) != null;
    }
    [$_get](key) {
      return this[S$1._getItem](T$.String()[_as](key));
    }
    [$forEach](f) {
      if (f == null) dart.nullFailed(I[166], 22016, 21, "f");
      let entries = this.entries();
      while (true) {
        let entry = entries.next();
        if (entry.done) return;
        f(entry.value[0], html_common.convertNativeToDart_Dictionary(entry.value[1]));
      }
    }
    get [$keys]() {
      let keys = G.JSArrayOfString().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 22028, 14, "k");
        return keys[$add](k);
      }, T$2.StringAnddynamicTovoid()));
      return keys;
    }
    get [$values]() {
      let values = G$.JSArrayOfMap().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 22034, 14, "k");
        return values[$add](T$.Map()[_as](v));
      }, T$2.StringAnddynamicTovoid()));
      return values;
    }
    get [$length]() {
      return this.size;
    }
    get [$isEmpty]() {
      return this[$length] === 0;
    }
    get [$isNotEmpty]() {
      return !dart.test(this[$isEmpty]);
    }
    [$_set](key, value$) {
      let value = value$;
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 22044, 28, "key");
      dart.throw(new core.UnsupportedError.new("Not supported"));
      return value$;
    }
    [$putIfAbsent](key, ifAbsent) {
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 22048, 30, "key");
      T$.VoidTodynamic()[_as](ifAbsent);
      if (ifAbsent == null) dart.nullFailed(I[166], 22048, 43, "ifAbsent");
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$remove](key) {
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$clear]() {
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
  };
  dart.addRtiResources(html$.MidiOutputMap, ["html|MidiOutputMap"]);
  dart.setMethodSignature(html$.MidiOutputMap, () => dart.global.Object.setPrototypeOf({
    [S$1._getItem]: T.StringToMapN(),
    [$containsValue]: T$.dynamicTobool(),
    [$containsKey]: T$.dynamicTobool(),
    [$_get]: T.dynamicToMapN(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    [$remove]: T$.dynamicToString(),
    [$clear]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MidiOutputMap))));
  dart.setStaticMethodSignature(html$.MidiOutputMap, () => ['__']);
  dart.setGetterSignature(html$.MidiOutputMap, () => dart.global.Object.setPrototypeOf({
    [$keys]: T$0.IterableOfString(),
    [$values]: T.IterableOfMap()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MidiOutputMap))));
  dart.setLibraryUri(html$.MidiOutputMap, I[167]);
  dart.registerExtension("MIDIOutputMap", html$.MidiOutputMap);
  html$.MimeType = class MimeType extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MimeType.__();
    }
    get [S$1.$description]() {
      return this.description;
    }
    get [S$1.$enabledPlugin]() {
      return this.enabledPlugin;
    }
    get [S$1.$suffixes]() {
      return this.suffixes;
    }
    get [S.$type]() {
      return this.type;
    }
  };
  dart.addRtiResources(html$.MimeType, ["html|MimeType"]);
  dart.setStaticMethodSignature(html$.MimeType, () => ['__']);
  dart.setGetterSignature(html$.MimeType, () => dart.global.Object.setPrototypeOf({
    [S$1.$description]: T$.StringN(),
    [S$1.$enabledPlugin]: T.PluginN(),
    [S$1.$suffixes]: T$.StringN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MimeType))));
  dart.setLibraryUri(html$.MimeType, I[167]);
  dart.registerExtension("MimeType", html$.MimeType);
  const JavaScriptObject_ListBase$36$2 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$2.new = function() {
    G$.ListBaseOfMimeType().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$2).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$2.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$2, G$.ListBaseOfMimeType());
  const JavaScriptObject_ImmutableListMixin$36$2 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$2 {};
  (JavaScriptObject_ImmutableListMixin$36$2.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$2).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$2.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$2, G$.ImmutableListMixinOfMimeType());
  html$.MimeTypeArray = class MimeTypeArray extends JavaScriptObject_ImmutableListMixin$36$2 {
    static ['_#_#tearOff']() {
      return html$.MimeTypeArray.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 22123, 28, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 22129, 25, "index");
      T.MimeType()[_as](value);
      if (value == null) dart.nullFailed(I[166], 22129, 41, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 22135, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 22163, 26, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [S$1.$namedItem](...args) {
      return this.namedItem.apply(this, args);
    }
  };
  dart.addRtiResources(html$.MimeTypeArray, ["html|MimeTypeArray", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.MimeTypeArray, () => dart.global.Object.setPrototypeOf({
    [$_get]: T.intToMimeType(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T.intToMimeTypeN(),
    [S$1.$namedItem]: T.StringToMimeTypeN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MimeTypeArray))));
  dart.setStaticMethodSignature(html$.MimeTypeArray, () => ['__']);
  dart.setGetterSignature(html$.MimeTypeArray, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MimeTypeArray))));
  dart.setSetterSignature(html$.MimeTypeArray, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.MimeTypeArray))));
  dart.setLibraryUri(html$.MimeTypeArray, I[167]);
  dart.registerExtension("MimeTypeArray", html$.MimeTypeArray);
  html$.ModElement = class ModElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ModElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.ModElement.created();
    }
    get [S$1.$cite]() {
      return this.cite;
    }
    set [S$1.$cite](value) {
      this.cite = value;
    }
    get [S$1.$dateTime]() {
      return this.dateTime;
    }
    set [S$1.$dateTime](value) {
      this.dateTime = value;
    }
  };
  (html$.ModElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ModElement).created.call(this);
    ;
  }).prototype = html$.ModElement.prototype;
  dart.addRtiResources(html$.ModElement, ["html|ModElement"]);
  dart.setStaticMethodSignature(html$.ModElement, () => ['__']);
  dart.setGetterSignature(html$.ModElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$cite]: T$.String(),
    [S$1.$dateTime]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ModElement))));
  dart.setSetterSignature(html$.ModElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$cite]: T$.String(),
    [S$1.$dateTime]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.ModElement))));
  dart.setLibraryUri(html$.ModElement, I[167]);
  dart.registerExtension("HTMLModElement", html$.ModElement);
  html$.MouseEvent = class MouseEvent$ extends html$.UIEvent {
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 22209, 29, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let detail = opts && 'detail' in opts ? opts.detail : 0;
      if (detail == null) dart.nullFailed(I[166], 22211, 11, "detail");
      let screenX = opts && 'screenX' in opts ? opts.screenX : 0;
      if (screenX == null) dart.nullFailed(I[166], 22212, 11, "screenX");
      let screenY = opts && 'screenY' in opts ? opts.screenY : 0;
      if (screenY == null) dart.nullFailed(I[166], 22213, 11, "screenY");
      let clientX = opts && 'clientX' in opts ? opts.clientX : 0;
      if (clientX == null) dart.nullFailed(I[166], 22214, 11, "clientX");
      let clientY = opts && 'clientY' in opts ? opts.clientY : 0;
      if (clientY == null) dart.nullFailed(I[166], 22215, 11, "clientY");
      let button = opts && 'button' in opts ? opts.button : 0;
      if (button == null) dart.nullFailed(I[166], 22216, 11, "button");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 22217, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 22218, 12, "cancelable");
      let ctrlKey = opts && 'ctrlKey' in opts ? opts.ctrlKey : false;
      if (ctrlKey == null) dart.nullFailed(I[166], 22219, 12, "ctrlKey");
      let altKey = opts && 'altKey' in opts ? opts.altKey : false;
      if (altKey == null) dart.nullFailed(I[166], 22220, 12, "altKey");
      let shiftKey = opts && 'shiftKey' in opts ? opts.shiftKey : false;
      if (shiftKey == null) dart.nullFailed(I[166], 22221, 12, "shiftKey");
      let metaKey = opts && 'metaKey' in opts ? opts.metaKey : false;
      if (metaKey == null) dart.nullFailed(I[166], 22222, 12, "metaKey");
      let relatedTarget = opts && 'relatedTarget' in opts ? opts.relatedTarget : null;
      if (view == null) {
        view = html$.window;
      }
      let event = T.MouseEvent()[_as](html$.document[S._createEvent]("MouseEvent"));
      event[S$1._initMouseEvent](type, canBubble, cancelable, view, detail, screenX, screenY, clientX, clientY, ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget);
      return event;
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 22209, 29, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let detail = opts && 'detail' in opts ? opts.detail : 0;
      if (detail == null) dart.nullFailed(I[166], 22211, 11, "detail");
      let screenX = opts && 'screenX' in opts ? opts.screenX : 0;
      if (screenX == null) dart.nullFailed(I[166], 22212, 11, "screenX");
      let screenY = opts && 'screenY' in opts ? opts.screenY : 0;
      if (screenY == null) dart.nullFailed(I[166], 22213, 11, "screenY");
      let clientX = opts && 'clientX' in opts ? opts.clientX : 0;
      if (clientX == null) dart.nullFailed(I[166], 22214, 11, "clientX");
      let clientY = opts && 'clientY' in opts ? opts.clientY : 0;
      if (clientY == null) dart.nullFailed(I[166], 22215, 11, "clientY");
      let button = opts && 'button' in opts ? opts.button : 0;
      if (button == null) dart.nullFailed(I[166], 22216, 11, "button");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 22217, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 22218, 12, "cancelable");
      let ctrlKey = opts && 'ctrlKey' in opts ? opts.ctrlKey : false;
      if (ctrlKey == null) dart.nullFailed(I[166], 22219, 12, "ctrlKey");
      let altKey = opts && 'altKey' in opts ? opts.altKey : false;
      if (altKey == null) dart.nullFailed(I[166], 22220, 12, "altKey");
      let shiftKey = opts && 'shiftKey' in opts ? opts.shiftKey : false;
      if (shiftKey == null) dart.nullFailed(I[166], 22221, 12, "shiftKey");
      let metaKey = opts && 'metaKey' in opts ? opts.metaKey : false;
      if (metaKey == null) dart.nullFailed(I[166], 22222, 12, "metaKey");
      let relatedTarget = opts && 'relatedTarget' in opts ? opts.relatedTarget : null;
      return html$.MouseEvent.new(type, {view: view, detail: detail, screenX: screenX, screenY: screenY, clientX: clientX, clientY: clientY, button: button, canBubble: canBubble, cancelable: cancelable, ctrlKey: ctrlKey, altKey: altKey, shiftKey: shiftKey, metaKey: metaKey, relatedTarget: relatedTarget});
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 22247, 31, "type");
      return html$.MouseEvent.__(type, eventInitDict);
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 22247, 31, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.MouseEvent._create_1(type, eventInitDict_1);
      }
      return html$.MouseEvent._create_2(type);
    }
    static _create_1(type, eventInitDict) {
      return new MouseEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new MouseEvent(type);
    }
    get [S$1.$altKey]() {
      return this.altKey;
    }
    get [S$1.$button]() {
      return this.button;
    }
    get [S$1.$buttons]() {
      return this.buttons;
    }
    get [S$1._clientX]() {
      return this.clientX;
    }
    get [S$1._clientY]() {
      return this.clientY;
    }
    get [S$1.$ctrlKey]() {
      return this.ctrlKey;
    }
    get [S$1.$fromElement]() {
      return this.fromElement;
    }
    get [S$1._layerX]() {
      return this.layerX;
    }
    get [S$1._layerY]() {
      return this.layerY;
    }
    get [S$1.$metaKey]() {
      return this.metaKey;
    }
    get [S$1._movementX]() {
      return this.movementX;
    }
    get [S$1._movementY]() {
      return this.movementY;
    }
    get [S$1._pageX]() {
      return this.pageX;
    }
    get [S$1._pageY]() {
      return this.pageY;
    }
    get [S$1.$region]() {
      return this.region;
    }
    get [S$1.$relatedTarget]() {
      return html$._convertNativeToDart_EventTarget(this[S$1._get_relatedTarget]);
    }
    get [S$1._get_relatedTarget]() {
      return this.relatedTarget;
    }
    get [S$1._screenX]() {
      return this.screenX;
    }
    get [S$1._screenY]() {
      return this.screenY;
    }
    get [S$1.$shiftKey]() {
      return this.shiftKey;
    }
    get [S$1.$toElement]() {
      return this.toElement;
    }
    [S$1.$getModifierState](...args) {
      return this.getModifierState.apply(this, args);
    }
    [S$1._initMouseEvent](type, bubbles, cancelable, view, detail, screenX, screenY, clientX, clientY, ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget) {
      let relatedTarget_1 = html$._convertDartToNative_EventTarget(relatedTarget);
      this[S$1._initMouseEvent_1](type, bubbles, cancelable, view, detail, screenX, screenY, clientX, clientY, ctrlKey, altKey, shiftKey, metaKey, button, relatedTarget_1);
      return;
    }
    [S$1._initMouseEvent_1](...args) {
      return this.initMouseEvent.apply(this, args);
    }
    get [S.$client]() {
      return new (G.PointOfnum()).new(this[S$1._clientX], this[S$1._clientY]);
    }
    get [S$1.$movement]() {
      return new (G.PointOfnum()).new(dart.nullCheck(this[S$1._movementX]), dart.nullCheck(this[S$1._movementY]));
    }
    get [S.$offset]() {
      if (!!this.offsetX) {
        let x = this.offsetX;
        let y = this.offsetY;
        return new (G.PointOfnum()).new(T$.num()[_as](x), T$.num()[_as](y));
      } else {
        if (!T$3.Element()[_is](this[S.$target])) {
          dart.throw(new core.UnsupportedError.new("offsetX is only supported on elements"));
        }
        let target = T$3.Element()[_as](this[S.$target]);
        let point = this[S.$client]['-'](target.getBoundingClientRect()[$topLeft]);
        return new (G.PointOfnum()).new(point.x[$toInt](), point.y[$toInt]());
      }
    }
    get [S$1.$screen]() {
      return new (G.PointOfnum()).new(this[S$1._screenX], this[S$1._screenY]);
    }
    get [S$1.$layer]() {
      return new (G.PointOfnum()).new(dart.nullCheck(this[S$1._layerX]), dart.nullCheck(this[S$1._layerY]));
    }
    get [S$0.$page]() {
      return new (G.PointOfnum()).new(dart.nullCheck(this[S$1._pageX]), dart.nullCheck(this[S$1._pageY]));
    }
    get [S$1.$dataTransfer]() {
      return this.dataTransfer;
    }
  };
  dart.addRtiResources(html$.MouseEvent, ["html|MouseEvent"]);
  dart.setMethodSignature(html$.MouseEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$getModifierState]: T$.StringTobool(),
    [S$1._initMouseEvent]: T.StringNAndboolNAndboolN__Tovoid$2(),
    [S$1._initMouseEvent_1]: T.dynamicAnddynamicAnddynamic__Tovoid$2()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MouseEvent))));
  dart.setStaticMethodSignature(html$.MouseEvent, () => ['new', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.MouseEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$altKey]: T$.bool(),
    [S$1.$button]: T$.int(),
    [S$1.$buttons]: T$.intN(),
    [S$1._clientX]: T$.num(),
    [S$1._clientY]: T$.num(),
    [S$1.$ctrlKey]: T$.bool(),
    [S$1.$fromElement]: T$3.NodeN$2(),
    [S$1._layerX]: T$.intN(),
    [S$1._layerY]: T$.intN(),
    [S$1.$metaKey]: T$.bool(),
    [S$1._movementX]: T$.intN(),
    [S$1._movementY]: T$.intN(),
    [S$1._pageX]: T$3.numN(),
    [S$1._pageY]: T$3.numN(),
    [S$1.$region]: T$.StringN(),
    [S$1.$relatedTarget]: T$3.EventTargetN(),
    [S$1._get_relatedTarget]: T$.dynamic(),
    [S$1._screenX]: T$.num(),
    [S$1._screenY]: T$.num(),
    [S$1.$shiftKey]: T$.bool(),
    [S$1.$toElement]: T$3.NodeN$2(),
    [S.$client]: T$3.PointOfnum(),
    [S$1.$movement]: T$3.PointOfnum(),
    [S.$offset]: T$3.PointOfnum(),
    [S$1.$screen]: T$3.PointOfnum(),
    [S$1.$layer]: T$3.PointOfnum(),
    [S$0.$page]: T$3.PointOfnum(),
    [S$1.$dataTransfer]: T.DataTransfer()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MouseEvent))));
  dart.setLibraryUri(html$.MouseEvent, I[167]);
  dart.registerExtension("MouseEvent", html$.MouseEvent);
  dart.registerExtension("DragEvent", html$.MouseEvent);
  html$.MutationEvent = class MutationEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.MutationEvent.__();
    }
    get [S$1.$attrChange]() {
      return this.attrChange;
    }
    get [S$1.$attrName]() {
      return this.attrName;
    }
    get [S$1.$newValue]() {
      return this.newValue;
    }
    get [S$1.$prevValue]() {
      return this.prevValue;
    }
    get [S$1.$relatedNode]() {
      return this.relatedNode;
    }
    [S$1.$initMutationEvent](...args) {
      return this.initMutationEvent.apply(this, args);
    }
  };
  dart.addRtiResources(html$.MutationEvent, ["html|MutationEvent"]);
  dart.setMethodSignature(html$.MutationEvent, () => dart.global.Object.setPrototypeOf({[S$1.$initMutationEvent]: T.StringNAndboolNAndboolN__Tovoid$3()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MutationEvent))));
  dart.setStaticMethodSignature(html$.MutationEvent, () => ['__']);
  dart.setGetterSignature(html$.MutationEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$attrChange]: T$.intN(),
    [S$1.$attrName]: T$.StringN(),
    [S$1.$newValue]: T$.StringN(),
    [S$1.$prevValue]: T$.StringN(),
    [S$1.$relatedNode]: T$3.NodeN$2()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MutationEvent))));
  dart.setLibraryUri(html$.MutationEvent, I[167]);
  dart.setStaticFieldSignature(html$.MutationEvent, () => ['ADDITION', 'MODIFICATION', 'REMOVAL']);
  dart.defineLazy(html$.MutationEvent, {
    /*html$.MutationEvent.ADDITION*/get ADDITION() {
      return 2;
    },
    /*html$.MutationEvent.MODIFICATION*/get MODIFICATION() {
      return 1;
    },
    /*html$.MutationEvent.REMOVAL*/get REMOVAL() {
      return 3;
    }
  }, false);
  dart.registerExtension("MutationEvent", html$.MutationEvent);
  html$.MutationObserver = class MutationObserver extends _interceptors.JavaScriptObject {
    [S$1.$disconnect](...args) {
      return this.disconnect.apply(this, args);
    }
    [S$1._observe](target, options = null) {
      if (target == null) dart.nullFailed(I[166], 22481, 22, "target");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        this[S$1._observe_1$1](target, options_1);
        return;
      }
      this[S$1._observe_2](target);
      return;
    }
    [S$1._observe_1$1](...args) {
      return this.observe.apply(this, args);
    }
    [S$1._observe_2](...args) {
      return this.observe.apply(this, args);
    }
    [S$1.$takeRecords](...args) {
      return this.takeRecords.apply(this, args);
    }
    static get supported() {
      return !!(window.MutationObserver || window.WebKitMutationObserver);
    }
    [S.$observe](target, opts) {
      if (target == null) dart.nullFailed(I[166], 22517, 21, "target");
      let childList = opts && 'childList' in opts ? opts.childList : null;
      let attributes = opts && 'attributes' in opts ? opts.attributes : null;
      let characterData = opts && 'characterData' in opts ? opts.characterData : null;
      let subtree = opts && 'subtree' in opts ? opts.subtree : null;
      let attributeOldValue = opts && 'attributeOldValue' in opts ? opts.attributeOldValue : null;
      let characterDataOldValue = opts && 'characterDataOldValue' in opts ? opts.characterDataOldValue : null;
      let attributeFilter = opts && 'attributeFilter' in opts ? opts.attributeFilter : null;
      let parsedOptions = html$.MutationObserver._createDict();
      function override(key, value) {
        if (value != null) html$.MutationObserver._add(parsedOptions, T$.String()[_as](key), value);
      }
      dart.fn(override, T$.dynamicAnddynamicToNull());
      override("childList", childList);
      override("attributes", attributes);
      override("characterData", characterData);
      override("subtree", subtree);
      override("attributeOldValue", attributeOldValue);
      override("characterDataOldValue", characterDataOldValue);
      if (attributeFilter != null) {
        override("attributeFilter", html$.MutationObserver._fixupList(attributeFilter));
      }
      this[S$1._call](target, parsedOptions);
    }
    static _createDict() {
      return {};
    }
    static _add(m, key, value) {
      if (key == null) dart.nullFailed(I[166], 22557, 25, "key");
      m[key] = value;
    }
    static _fixupList(list) {
      return list;
    }
    [S$1._call](...args) {
      return this.observe.apply(this, args);
    }
    static new(callback) {
      if (callback == null) dart.nullFailed(I[166], 22567, 45, "callback");
      0;
      return new (window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver)(_js_helper.convertDartClosureToJS(T.ListAndMutationObserverToNvoid(), html$._wrapBinaryZone(T$.List(), T.MutationObserver(), callback), 2));
    }
    static ['_#new#tearOff'](callback) {
      if (callback == null) dart.nullFailed(I[166], 22567, 45, "callback");
      return html$.MutationObserver.new(callback);
    }
  };
  dart.addRtiResources(html$.MutationObserver, ["html|MutationObserver"]);
  dart.setMethodSignature(html$.MutationObserver, () => dart.global.Object.setPrototypeOf({
    [S$1.$disconnect]: T$.VoidTovoid(),
    [S$1._observe]: T.NodeAndMapNTovoid(),
    [S$1._observe_1$1]: T.NodeAnddynamicTovoid(),
    [S$1._observe_2]: T.NodeTovoid(),
    [S$1.$takeRecords]: T.VoidToListOfMutationRecord(),
    [S.$observe]: T.Node__Tovoid(),
    [S$1._call]: T$.dynamicAnddynamicTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.MutationObserver))));
  dart.setStaticMethodSignature(html$.MutationObserver, () => ['_createDict', '_add', '_fixupList', 'new']);
  dart.setStaticGetterSignature(html$.MutationObserver, () => ['supported']);
  dart.setLibraryUri(html$.MutationObserver, I[167]);
  dart.setStaticFieldSignature(html$.MutationObserver, () => ['_boolKeys']);
  dart.defineLazy(html$.MutationObserver, {
    /*html$.MutationObserver._boolKeys*/get _boolKeys() {
      return C[401] || CT.C401;
    }
  }, false);
  dart.registerExtension("MutationObserver", html$.MutationObserver);
  dart.registerExtension("WebKitMutationObserver", html$.MutationObserver);
  html$.MutationRecord = class MutationRecord extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.MutationRecord.__();
    }
    get [S$1.$addedNodes]() {
      return this.addedNodes;
    }
    get [S$1.$attributeName]() {
      return this.attributeName;
    }
    get [S$1.$attributeNamespace]() {
      return this.attributeNamespace;
    }
    get [S$1.$nextSibling]() {
      return this.nextSibling;
    }
    get [S$1.$oldValue]() {
      return this.oldValue;
    }
    get [S$1.$previousSibling]() {
      return this.previousSibling;
    }
    get [S$1.$removedNodes]() {
      return this.removedNodes;
    }
    get [S.$target]() {
      return this.target;
    }
    get [S.$type]() {
      return this.type;
    }
  };
  dart.addRtiResources(html$.MutationRecord, ["html|MutationRecord"]);
  dart.setStaticMethodSignature(html$.MutationRecord, () => ['__']);
  dart.setGetterSignature(html$.MutationRecord, () => dart.global.Object.setPrototypeOf({
    [S$1.$addedNodes]: T$4.ListNOfNode(),
    [S$1.$attributeName]: T$.StringN(),
    [S$1.$attributeNamespace]: T$.StringN(),
    [S$1.$nextSibling]: T$3.NodeN$2(),
    [S$1.$oldValue]: T$.StringN(),
    [S$1.$previousSibling]: T$3.NodeN$2(),
    [S$1.$removedNodes]: T$4.ListNOfNode(),
    [S.$target]: T$3.NodeN$2(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.MutationRecord))));
  dart.setLibraryUri(html$.MutationRecord, I[167]);
  dart.registerExtension("MutationRecord", html$.MutationRecord);
  html$.NavigationPreloadManager = class NavigationPreloadManager extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NavigationPreloadManager.__();
    }
    [S$2.$disable]() {
      return js_util.promiseToFuture(T$.dynamic(), this.disable());
    }
    [S$2.$enable]() {
      return js_util.promiseToFuture(T$.dynamic(), this.enable());
    }
    [S$2.$getState]() {
      return html$.promiseToFutureAsMap(this.getState());
    }
  };
  dart.addRtiResources(html$.NavigationPreloadManager, ["html|NavigationPreloadManager"]);
  dart.setMethodSignature(html$.NavigationPreloadManager, () => dart.global.Object.setPrototypeOf({
    [S$2.$disable]: T$.VoidToFuture(),
    [S$2.$enable]: T$.VoidToFuture(),
    [S$2.$getState]: T$5.VoidToFutureOfMapNOfString$dynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.NavigationPreloadManager))));
  dart.setStaticMethodSignature(html$.NavigationPreloadManager, () => ['__']);
  dart.setLibraryUri(html$.NavigationPreloadManager, I[167]);
  dart.registerExtension("NavigationPreloadManager", html$.NavigationPreloadManager);
  html$.NavigatorConcurrentHardware = class NavigatorConcurrentHardware extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NavigatorConcurrentHardware.__();
    }
    get [S$2.$hardwareConcurrency]() {
      return this.hardwareConcurrency;
    }
  };
  dart.addRtiResources(html$.NavigatorConcurrentHardware, ["html|NavigatorConcurrentHardware"]);
  dart.setStaticMethodSignature(html$.NavigatorConcurrentHardware, () => ['__']);
  dart.setGetterSignature(html$.NavigatorConcurrentHardware, () => dart.global.Object.setPrototypeOf({[S$2.$hardwareConcurrency]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NavigatorConcurrentHardware))));
  dart.setLibraryUri(html$.NavigatorConcurrentHardware, I[167]);
  dart.registerExtension("NavigatorConcurrentHardware", html$.NavigatorConcurrentHardware);
  html$.Navigator = class Navigator extends html$.NavigatorConcurrentHardware {
    [S$2.$getGamepads]() {
      let gamepadList = this[S$2._getGamepads]();
      let jsProto = gamepadList.prototype;
      if (jsProto == null) {
        gamepadList.prototype = Object.create(null);
      }
      _js_helper.applyExtension("GamepadList", gamepadList);
      return gamepadList;
    }
    get [S$2.$language]() {
      return this.language || this.userLanguage;
    }
    [S$1.$getUserMedia](opts) {
      let audio = opts && 'audio' in opts ? opts.audio : false;
      let video = opts && 'video' in opts ? opts.video : false;
      let completer = G$.CompleterOfMediaStream().new();
      let options = new (G.IdentityMapOfString$dynamic()).from(["audio", audio, "video", video]);
      this[S$2._ensureGetUserMedia]();
      this[S$2._getUserMedia](html_common.convertDartToNative_SerializedScriptValue(options), dart.fn(stream => {
        if (stream == null) dart.nullFailed(I[166], 22698, 10, "stream");
        completer.complete(stream);
      }, T.MediaStreamTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 22700, 9, "error");
        completer.completeError(error);
      }, T.NavigatorUserMediaErrorTovoid()));
      return completer.future;
    }
    [S$2._ensureGetUserMedia]() {
      if (!this.getUserMedia) {
        this.getUserMedia = this.getUserMedia || this.webkitGetUserMedia || this.mozGetUserMedia || this.msGetUserMedia;
      }
    }
    [S$2._getUserMedia](...args) {
      return this.getUserMedia.apply(this, args);
    }
    static ['_#_#tearOff']() {
      return html$.Navigator.__();
    }
    get [S$2.$budget]() {
      return this.budget;
    }
    get [S$2.$clipboard]() {
      return this.clipboard;
    }
    get [S$1.$connection]() {
      return this.connection;
    }
    get [S$2.$credentials]() {
      return this.credentials;
    }
    get [S$2.$deviceMemory]() {
      return this.deviceMemory;
    }
    get [S$2.$doNotTrack]() {
      return this.doNotTrack;
    }
    get [S$2.$geolocation]() {
      return this.geolocation;
    }
    get [S$2.$maxTouchPoints]() {
      return this.maxTouchPoints;
    }
    get [S$2.$mediaCapabilities]() {
      return this.mediaCapabilities;
    }
    get [S$2.$mediaDevices]() {
      return this.mediaDevices;
    }
    get [S$2.$mediaSession]() {
      return this.mediaSession;
    }
    get [S$2.$mimeTypes]() {
      return this.mimeTypes;
    }
    get [S$2.$nfc]() {
      return this.nfc;
    }
    get [S$2.$permissions]() {
      return this.permissions;
    }
    get [S$2.$presentation]() {
      return this.presentation;
    }
    get [S$2.$productSub]() {
      return this.productSub;
    }
    get [S$2.$serviceWorker]() {
      return this.serviceWorker;
    }
    get [S$2.$storage]() {
      return this.storage;
    }
    get [S$2.$vendor]() {
      return this.vendor;
    }
    get [S$2.$vendorSub]() {
      return this.vendorSub;
    }
    get [S$2.$vr]() {
      return this.vr;
    }
    get [S$2.$persistentStorage]() {
      return this.webkitPersistentStorage;
    }
    get [S$2.$temporaryStorage]() {
      return this.webkitTemporaryStorage;
    }
    [S$2.$cancelKeyboardLock](...args) {
      return this.cancelKeyboardLock.apply(this, args);
    }
    [S$2.$getBattery]() {
      return js_util.promiseToFuture(T$.dynamic(), this.getBattery());
    }
    [S$2._getGamepads](...args) {
      return this.getGamepads.apply(this, args);
    }
    [S$2.$getInstalledRelatedApps]() {
      return js_util.promiseToFuture(T.RelatedApplication(), this.getInstalledRelatedApps());
    }
    [S$2.$getVRDisplays]() {
      return js_util.promiseToFuture(T$.dynamic(), this.getVRDisplays());
    }
    [S$2.$registerProtocolHandler](...args) {
      return this.registerProtocolHandler.apply(this, args);
    }
    [S$2.$requestKeyboardLock](keyCodes = null) {
      if (keyCodes != null) {
        let keyCodes_1 = html_common.convertDartToNative_StringArray(keyCodes);
        return this[S$2._requestKeyboardLock_1](keyCodes_1);
      }
      return this[S$2._requestKeyboardLock_2]();
    }
    [S$2._requestKeyboardLock_1](keyCodes) {
      if (keyCodes == null) dart.nullFailed(I[166], 22814, 38, "keyCodes");
      return js_util.promiseToFuture(T$.dynamic(), this.requestKeyboardLock(keyCodes));
    }
    [S$2._requestKeyboardLock_2]() {
      return js_util.promiseToFuture(T$.dynamic(), this.requestKeyboardLock());
    }
    [S$2.$requestMidiAccess](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.requestMIDIAccess(options_dict));
    }
    [S$2.$requestMediaKeySystemAccess](keySystem, supportedConfigurations) {
      if (keySystem == null) dart.nullFailed(I[166], 22831, 18, "keySystem");
      if (supportedConfigurations == null) dart.nullFailed(I[166], 22831, 39, "supportedConfigurations");
      return js_util.promiseToFuture(T$.dynamic(), this.requestMediaKeySystemAccess(keySystem, supportedConfigurations));
    }
    [S$2.$sendBeacon](...args) {
      return this.sendBeacon.apply(this, args);
    }
    [S$2.$share](data = null) {
      let data_dict = null;
      if (data != null) {
        data_dict = html_common.convertDartToNative_Dictionary(data);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.share(data_dict));
    }
    get [S$2.$webdriver]() {
      return this.webdriver;
    }
    get [S$2.$cookieEnabled]() {
      return this.cookieEnabled;
    }
    get [S$2.$appCodeName]() {
      return this.appCodeName;
    }
    get [S$2.$appName]() {
      return this.appName;
    }
    get [S$2.$appVersion]() {
      return this.appVersion;
    }
    get [S$2.$dartEnabled]() {
      return this.dartEnabled;
    }
    get [S$2.$platform]() {
      return this.platform;
    }
    get [S$2.$product]() {
      return this.product;
    }
    get [S$2.$userAgent]() {
      return this.userAgent;
    }
    get [S$2.$languages]() {
      return this.languages;
    }
    get [S$2.$onLine]() {
      return this.onLine;
    }
  };
  dart.addRtiResources(html$.Navigator, ["html|Navigator", "html|NavigatorCookies", "html|NavigatorID", "html|NavigatorLanguage", "html|NavigatorOnLine", "html|NavigatorAutomationInformation", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.Navigator, () => dart.global.Object.setPrototypeOf({
    [S$2.$getGamepads]: T.VoidToListOfGamepadN(),
    [S$1.$getUserMedia]: T.__ToFutureOfMediaStream(),
    [S$2._ensureGetUserMedia]: T$.VoidTodynamic(),
    [S$2._getUserMedia]: T.dynamicAndFnAndFnTovoid(),
    [S$2.$cancelKeyboardLock]: T$.VoidTovoid(),
    [S$2.$getBattery]: T$.VoidToFuture(),
    [S$2._getGamepads]: T.VoidToListOfGamepadN(),
    [S$2.$getInstalledRelatedApps]: T.VoidToFutureOfRelatedApplication(),
    [S$2.$getVRDisplays]: T$.VoidToFuture(),
    [S$2.$registerProtocolHandler]: T$3.StringAndStringAndStringTovoid(),
    [S$2.$requestKeyboardLock]: T.ListNOfStringToFuture(),
    [S$2._requestKeyboardLock_1]: T.ListToFuture(),
    [S$2._requestKeyboardLock_2]: T$.VoidToFuture(),
    [S$2.$requestMidiAccess]: T$4.MapNToFuture(),
    [S$2.$requestMediaKeySystemAccess]: T.StringAndListOfMapToFuture(),
    [S$2.$sendBeacon]: T.StringAndObjectNTobool(),
    [S$2.$share]: T$4.MapNToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Navigator))));
  dart.setStaticMethodSignature(html$.Navigator, () => ['__']);
  dart.setGetterSignature(html$.Navigator, () => dart.global.Object.setPrototypeOf({
    [S$2.$language]: T$.String(),
    [S$2.$budget]: T._BudgetServiceN(),
    [S$2.$clipboard]: T._ClipboardN(),
    [S$1.$connection]: T.NetworkInformationN(),
    [S$2.$credentials]: T.CredentialsContainerN(),
    [S$2.$deviceMemory]: T$3.numN(),
    [S$2.$doNotTrack]: T$.StringN(),
    [S$2.$geolocation]: T.Geolocation(),
    [S$2.$maxTouchPoints]: T$.intN(),
    [S$2.$mediaCapabilities]: T.MediaCapabilitiesN(),
    [S$2.$mediaDevices]: T.MediaDevicesN(),
    [S$2.$mediaSession]: T.MediaSessionN(),
    [S$2.$mimeTypes]: T.MimeTypeArrayN(),
    [S$2.$nfc]: T._NFCN(),
    [S$2.$permissions]: T.PermissionsN(),
    [S$2.$presentation]: T.PresentationN(),
    [S$2.$productSub]: T$.StringN(),
    [S$2.$serviceWorker]: T.ServiceWorkerContainerN(),
    [S$2.$storage]: T.StorageManagerN(),
    [S$2.$vendor]: T$.String(),
    [S$2.$vendorSub]: T$.String(),
    [S$2.$vr]: T.VRN(),
    [S$2.$persistentStorage]: T.DeprecatedStorageQuotaN(),
    [S$2.$temporaryStorage]: T.DeprecatedStorageQuotaN(),
    [S$2.$webdriver]: T$.boolN(),
    [S$2.$cookieEnabled]: T$.boolN(),
    [S$2.$appCodeName]: T$.String(),
    [S$2.$appName]: T$.String(),
    [S$2.$appVersion]: T$.String(),
    [S$2.$dartEnabled]: T$.boolN(),
    [S$2.$platform]: T$.StringN(),
    [S$2.$product]: T$.String(),
    [S$2.$userAgent]: T$.String(),
    [S$2.$languages]: T$.ListNOfString(),
    [S$2.$onLine]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Navigator))));
  dart.setLibraryUri(html$.Navigator, I[167]);
  dart.registerExtension("Navigator", html$.Navigator);
  html$.NavigatorAutomationInformation = class NavigatorAutomationInformation extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NavigatorAutomationInformation.__();
    }
    get [S$2.$webdriver]() {
      return this.webdriver;
    }
  };
  dart.addRtiResources(html$.NavigatorAutomationInformation, ["html|NavigatorAutomationInformation"]);
  dart.setStaticMethodSignature(html$.NavigatorAutomationInformation, () => ['__']);
  dart.setGetterSignature(html$.NavigatorAutomationInformation, () => dart.global.Object.setPrototypeOf({[S$2.$webdriver]: T$.boolN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NavigatorAutomationInformation))));
  dart.setLibraryUri(html$.NavigatorAutomationInformation, I[167]);
  dart.registerExtension("NavigatorAutomationInformation", html$.NavigatorAutomationInformation);
  html$.NavigatorCookies = class NavigatorCookies extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NavigatorCookies.__();
    }
    get [S$2.$cookieEnabled]() {
      return this.cookieEnabled;
    }
  };
  dart.addRtiResources(html$.NavigatorCookies, ["html|NavigatorCookies"]);
  dart.setStaticMethodSignature(html$.NavigatorCookies, () => ['__']);
  dart.setGetterSignature(html$.NavigatorCookies, () => dart.global.Object.setPrototypeOf({[S$2.$cookieEnabled]: T$.boolN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NavigatorCookies))));
  dart.setLibraryUri(html$.NavigatorCookies, I[167]);
  dart.registerExtension("NavigatorCookies", html$.NavigatorCookies);
  html$.NavigatorID = class NavigatorID extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NavigatorID.__();
    }
    get appCodeName() {
      return this.appCodeName;
    }
    get appName() {
      return this.appName;
    }
    get appVersion() {
      return this.appVersion;
    }
    get dartEnabled() {
      return this.dartEnabled;
    }
    get platform() {
      return this.platform;
    }
    get product() {
      return this.product;
    }
    get userAgent() {
      return this.userAgent;
    }
  };
  dart.addRtiResources(html$.NavigatorID, ["html|NavigatorID"]);
  dart.setStaticMethodSignature(html$.NavigatorID, () => ['__']);
  dart.setGetterSignature(html$.NavigatorID, () => dart.global.Object.setPrototypeOf({
    appCodeName: T$.String(),
    [S$2.$appCodeName]: T$.String(),
    appName: T$.String(),
    [S$2.$appName]: T$.String(),
    appVersion: T$.String(),
    [S$2.$appVersion]: T$.String(),
    dartEnabled: T$.boolN(),
    [S$2.$dartEnabled]: T$.boolN(),
    platform: T$.StringN(),
    [S$2.$platform]: T$.StringN(),
    product: T$.String(),
    [S$2.$product]: T$.String(),
    userAgent: T$.String(),
    [S$2.$userAgent]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NavigatorID))));
  dart.setLibraryUri(html$.NavigatorID, I[167]);
  dart.defineExtensionAccessors(html$.NavigatorID, [
    'appCodeName',
    'appName',
    'appVersion',
    'dartEnabled',
    'platform',
    'product',
    'userAgent'
  ]);
  html$.NavigatorLanguage = class NavigatorLanguage extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NavigatorLanguage.__();
    }
    get language() {
      return this.language;
    }
    get languages() {
      return this.languages;
    }
  };
  dart.addRtiResources(html$.NavigatorLanguage, ["html|NavigatorLanguage"]);
  dart.setStaticMethodSignature(html$.NavigatorLanguage, () => ['__']);
  dart.setGetterSignature(html$.NavigatorLanguage, () => dart.global.Object.setPrototypeOf({
    language: T$.StringN(),
    [S$2.$language]: T$.StringN(),
    languages: T$.ListNOfString(),
    [S$2.$languages]: T$.ListNOfString()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NavigatorLanguage))));
  dart.setLibraryUri(html$.NavigatorLanguage, I[167]);
  dart.defineExtensionAccessors(html$.NavigatorLanguage, ['language', 'languages']);
  html$.NavigatorOnLine = class NavigatorOnLine extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NavigatorOnLine.__();
    }
    get onLine() {
      return this.onLine;
    }
  };
  dart.addRtiResources(html$.NavigatorOnLine, ["html|NavigatorOnLine"]);
  dart.setStaticMethodSignature(html$.NavigatorOnLine, () => ['__']);
  dart.setGetterSignature(html$.NavigatorOnLine, () => dart.global.Object.setPrototypeOf({
    onLine: T$.boolN(),
    [S$2.$onLine]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NavigatorOnLine))));
  dart.setLibraryUri(html$.NavigatorOnLine, I[167]);
  dart.defineExtensionAccessors(html$.NavigatorOnLine, ['onLine']);
  html$.NavigatorUserMediaError = class NavigatorUserMediaError extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NavigatorUserMediaError.__();
    }
    get [S$2.$constraintName]() {
      return this.constraintName;
    }
    get [$message]() {
      return this.message;
    }
    get [$name]() {
      return this.name;
    }
  };
  dart.addRtiResources(html$.NavigatorUserMediaError, ["html|NavigatorUserMediaError"]);
  dart.setStaticMethodSignature(html$.NavigatorUserMediaError, () => ['__']);
  dart.setGetterSignature(html$.NavigatorUserMediaError, () => dart.global.Object.setPrototypeOf({
    [S$2.$constraintName]: T$.StringN(),
    [$message]: T$.StringN(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NavigatorUserMediaError))));
  dart.setLibraryUri(html$.NavigatorUserMediaError, I[167]);
  dart.registerExtension("NavigatorUserMediaError", html$.NavigatorUserMediaError);
  html$.NetworkInformation = class NetworkInformation extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.NetworkInformation.__();
    }
    get [S$2.$downlink]() {
      return this.downlink;
    }
    get [S$2.$downlinkMax]() {
      return this.downlinkMax;
    }
    get [S$2.$effectiveType]() {
      return this.effectiveType;
    }
    get [S$2.$rtt]() {
      return this.rtt;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S.$onChange]() {
      return html$.NetworkInformation.changeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.NetworkInformation, ["html|NetworkInformation"]);
  dart.setStaticMethodSignature(html$.NetworkInformation, () => ['__']);
  dart.setGetterSignature(html$.NetworkInformation, () => dart.global.Object.setPrototypeOf({
    [S$2.$downlink]: T$3.numN(),
    [S$2.$downlinkMax]: T$3.numN(),
    [S$2.$effectiveType]: T$.StringN(),
    [S$2.$rtt]: T$.intN(),
    [S.$type]: T$.StringN(),
    [S.$onChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NetworkInformation))));
  dart.setLibraryUri(html$.NetworkInformation, I[167]);
  dart.setStaticFieldSignature(html$.NetworkInformation, () => ['changeEvent']);
  dart.defineLazy(html$.NetworkInformation, {
    /*html$.NetworkInformation.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    }
  }, false);
  dart.registerExtension("NetworkInformation", html$.NetworkInformation);
  html$._ChildNodeListLazy = class _ChildNodeListLazy extends G$.ListBaseOfNode() {
    static ['_#new#tearOff'](_this) {
      if (_this == null) dart.nullFailed(I[166], 23042, 27, "_this");
      return new html$._ChildNodeListLazy.new(_this);
    }
    get first() {
      let result = this[S$._this].firstChild;
      if (result == null) dart.throw(new core.StateError.new("No elements"));
      return result;
    }
    set first(value) {
      super.first = value;
    }
    get last() {
      let result = this[S$._this].lastChild;
      if (result == null) dart.throw(new core.StateError.new("No elements"));
      return result;
    }
    set last(value) {
      super.last = value;
    }
    get single() {
      let l = this.length;
      if (l === 0) dart.throw(new core.StateError.new("No elements"));
      if (dart.notNull(l) > 1) dart.throw(new core.StateError.new("More than one element"));
      return dart.nullCheck(this[S$._this].firstChild);
    }
    add(value) {
      T$5.Node()[_as](value);
      if (value == null) dart.nullFailed(I[166], 23063, 17, "value");
      this[S$._this][S.$append](value);
    }
    addAll(iterable) {
      T$3.IterableOfNode()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 23067, 30, "iterable");
      if (T$3._ChildNodeListLazy()[_is](iterable)) {
        let otherList = iterable;
        if (otherList[S$._this] != this[S$._this]) {
          for (let i = 0, len = otherList.length; i < dart.notNull(len); i = i + 1) {
            this[S$._this][S.$append](dart.nullCheck(otherList[S$._this].firstChild));
          }
        }
        return;
      }
      for (let node of iterable) {
        this[S$._this][S.$append](node);
      }
    }
    insert(index, node) {
      if (index == null) dart.nullFailed(I[166], 23083, 19, "index");
      T$5.Node()[_as](node);
      if (node == null) dart.nullFailed(I[166], 23083, 31, "node");
      if (dart.notNull(index) < 0 || dart.notNull(index) > dart.notNull(this.length)) {
        dart.throw(new core.RangeError.range(index, 0, this.length));
      }
      if (index == this.length) {
        this[S$._this][S.$append](node);
      } else {
        this[S$._this].insertBefore(node, this._get(index));
      }
    }
    insertAll(index, iterable) {
      if (index == null) dart.nullFailed(I[166], 23094, 22, "index");
      T$3.IterableOfNode()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 23094, 44, "iterable");
      if (index == this.length) {
        this.addAll(iterable);
      } else {
        let item = this._get(index);
        this[S$._this][S$.$insertAllBefore](iterable, item);
      }
    }
    setAll(index, iterable) {
      if (index == null) dart.nullFailed(I[166], 23103, 19, "index");
      T$3.IterableOfNode()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 23103, 41, "iterable");
      dart.throw(new core.UnsupportedError.new("Cannot setAll on Node list"));
    }
    removeLast() {
      let result = this.last;
      if (result != null) {
        this[S$._this][S$._removeChild](result);
      }
      return result;
    }
    removeAt(index) {
      if (index == null) dart.nullFailed(I[166], 23115, 21, "index");
      let result = this._get(index);
      if (result != null) {
        this[S$._this][S$._removeChild](result);
      }
      return result;
    }
    remove(object) {
      if (!T$5.Node()[_is](object)) return false;
      let node = object;
      if (this[S$._this] != node.parentNode) return false;
      this[S$._this][S$._removeChild](node);
      return true;
    }
    [S$1._filter$2](test, removeMatching) {
      if (test == null) dart.nullFailed(I[166], 23131, 21, "test");
      if (removeMatching == null) dart.nullFailed(I[166], 23131, 43, "removeMatching");
      let child = this[S$._this].firstChild;
      while (child != null) {
        let nextChild = child[S.$nextNode];
        if (test(child) == removeMatching) {
          this[S$._this][S$._removeChild](child);
        }
        child = nextChild;
      }
    }
    removeWhere(test) {
      if (test == null) dart.nullFailed(I[166], 23145, 25, "test");
      this[S$1._filter$2](test, true);
    }
    retainWhere(test) {
      if (test == null) dart.nullFailed(I[166], 23149, 25, "test");
      this[S$1._filter$2](test, false);
    }
    clear() {
      this[S$._this][S$._clearChildren]();
    }
    _set(index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 23157, 25, "index");
      T$5.Node()[_as](value);
      if (value == null) dart.nullFailed(I[166], 23157, 37, "value");
      this[S$._this][S$._replaceChild](value, this._get(index));
      return value$;
    }
    get iterator() {
      return this[S$._this].childNodes[$iterator];
    }
    sort(compare = null) {
      dart.throw(new core.UnsupportedError.new("Cannot sort Node list"));
    }
    shuffle(random = null) {
      dart.throw(new core.UnsupportedError.new("Cannot shuffle Node list"));
    }
    setRange(start, end, iterable, skipCount = 0) {
      if (start == null) dart.nullFailed(I[166], 23176, 21, "start");
      if (end == null) dart.nullFailed(I[166], 23176, 32, "end");
      T$3.IterableOfNode()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 23176, 52, "iterable");
      if (skipCount == null) dart.nullFailed(I[166], 23177, 12, "skipCount");
      dart.throw(new core.UnsupportedError.new("Cannot setRange on Node list"));
    }
    fillRange(start, end, fill = null) {
      if (start == null) dart.nullFailed(I[166], 23181, 22, "start");
      if (end == null) dart.nullFailed(I[166], 23181, 33, "end");
      T$3.NodeN$2()[_as](fill);
      dart.throw(new core.UnsupportedError.new("Cannot fillRange on Node list"));
    }
    removeRange(start, end) {
      if (start == null) dart.nullFailed(I[166], 23185, 24, "start");
      if (end == null) dart.nullFailed(I[166], 23185, 35, "end");
      dart.throw(new core.UnsupportedError.new("Cannot removeRange on Node list"));
    }
    get length() {
      return this[S$._this].childNodes[$length];
    }
    set length(value) {
      if (value == null) dart.nullFailed(I[166], 23194, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot set length on immutable List."));
    }
    _get(index) {
      if (index == null) dart.nullFailed(I[166], 23198, 24, "index");
      return this[S$._this].childNodes[$_get](index);
    }
    get rawList() {
      return this[S$._this].childNodes;
    }
  };
  (html$._ChildNodeListLazy.new = function(_this) {
    if (_this == null) dart.nullFailed(I[166], 23042, 27, "_this");
    this[S$._this] = _this;
    this.$ti = this.$ti || T$3._ChildNodeListLazy();
    dart.global.Object.getPrototypeOf(html$._ChildNodeListLazy).new.call(this);
    ;
  }).prototype = html$._ChildNodeListLazy.prototype;
  dart.addRtiResources(html$._ChildNodeListLazy, ["html|_ChildNodeListLazy", "html_common|NodeListWrapper"]);
  dart.setMethodSignature(html$._ChildNodeListLazy, () => dart.global.Object.setPrototypeOf({
    [S$1._filter$2]: T.FnAndboolTovoid$5(),
    _set: T$.intAndObjectNTovoid(),
    [$_set]: T$.intAndObjectNTovoid(),
    _get: T$5.intToNode(),
    [$_get]: T$5.intToNode()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._ChildNodeListLazy))));
  dart.setGetterSignature(html$._ChildNodeListLazy, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    [$length]: T$.int(),
    rawList: T$3.ListOfNode$1()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._ChildNodeListLazy))));
  dart.setSetterSignature(html$._ChildNodeListLazy, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$._ChildNodeListLazy))));
  dart.setLibraryUri(html$._ChildNodeListLazy, I[167]);
  dart.setFieldSignature(html$._ChildNodeListLazy, () => dart.global.Object.setPrototypeOf({[S$._this]: {type: T$5.Node(), isConst: false, isFinal: true, libraryUri: I[167]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._ChildNodeListLazy))));
  dart.defineExtensionMethods(html$._ChildNodeListLazy, [
    'add',
    'addAll',
    'insert',
    'insertAll',
    'setAll',
    'removeLast',
    'removeAt',
    'remove',
    'removeWhere',
    'retainWhere',
    'clear',
    '_set',
    'sort',
    'shuffle',
    'setRange',
    'fillRange',
    'removeRange',
    '_get'
  ]);
  dart.defineExtensionAccessors(html$._ChildNodeListLazy, [
    'first',
    'last',
    'single',
    'iterator',
    'length'
  ]);
  html$.NodeFilter = class NodeFilter extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NodeFilter.__();
    }
  };
  dart.addRtiResources(html$.NodeFilter, ["html|NodeFilter"]);
  dart.setStaticMethodSignature(html$.NodeFilter, () => ['__']);
  dart.setLibraryUri(html$.NodeFilter, I[167]);
  dart.setStaticFieldSignature(html$.NodeFilter, () => ['FILTER_ACCEPT', 'FILTER_REJECT', 'FILTER_SKIP', 'SHOW_ALL', 'SHOW_COMMENT', 'SHOW_DOCUMENT', 'SHOW_DOCUMENT_FRAGMENT', 'SHOW_DOCUMENT_TYPE', 'SHOW_ELEMENT', 'SHOW_PROCESSING_INSTRUCTION', 'SHOW_TEXT']);
  dart.defineLazy(html$.NodeFilter, {
    /*html$.NodeFilter.FILTER_ACCEPT*/get FILTER_ACCEPT() {
      return 1;
    },
    /*html$.NodeFilter.FILTER_REJECT*/get FILTER_REJECT() {
      return 2;
    },
    /*html$.NodeFilter.FILTER_SKIP*/get FILTER_SKIP() {
      return 3;
    },
    /*html$.NodeFilter.SHOW_ALL*/get SHOW_ALL() {
      return 4294967295.0;
    },
    /*html$.NodeFilter.SHOW_COMMENT*/get SHOW_COMMENT() {
      return 128;
    },
    /*html$.NodeFilter.SHOW_DOCUMENT*/get SHOW_DOCUMENT() {
      return 256;
    },
    /*html$.NodeFilter.SHOW_DOCUMENT_FRAGMENT*/get SHOW_DOCUMENT_FRAGMENT() {
      return 1024;
    },
    /*html$.NodeFilter.SHOW_DOCUMENT_TYPE*/get SHOW_DOCUMENT_TYPE() {
      return 512;
    },
    /*html$.NodeFilter.SHOW_ELEMENT*/get SHOW_ELEMENT() {
      return 1;
    },
    /*html$.NodeFilter.SHOW_PROCESSING_INSTRUCTION*/get SHOW_PROCESSING_INSTRUCTION() {
      return 64;
    },
    /*html$.NodeFilter.SHOW_TEXT*/get SHOW_TEXT() {
      return 4;
    }
  }, false);
  dart.registerExtension("NodeFilter", html$.NodeFilter);
  html$.NodeIterator = class NodeIterator extends _interceptors.JavaScriptObject {
    static new(root, whatToShow) {
      if (root == null) dart.nullFailed(I[166], 23609, 29, "root");
      if (whatToShow == null) dart.nullFailed(I[166], 23609, 39, "whatToShow");
      return html$.document[S$1._createNodeIterator](root, whatToShow, null);
    }
    static ['_#new#tearOff'](root, whatToShow) {
      if (root == null) dart.nullFailed(I[166], 23609, 29, "root");
      if (whatToShow == null) dart.nullFailed(I[166], 23609, 39, "whatToShow");
      return html$.NodeIterator.new(root, whatToShow);
    }
    static ['_#_#tearOff']() {
      return html$.NodeIterator.__();
    }
    get [S$2.$pointerBeforeReferenceNode]() {
      return this.pointerBeforeReferenceNode;
    }
    get [S$2.$referenceNode]() {
      return this.referenceNode;
    }
    get [S$1.$root]() {
      return this.root;
    }
    get [S$2.$whatToShow]() {
      return this.whatToShow;
    }
    [S$2.$detach](...args) {
      return this.detach.apply(this, args);
    }
    [S.$nextNode](...args) {
      return this.nextNode.apply(this, args);
    }
    [S$.$previousNode](...args) {
      return this.previousNode.apply(this, args);
    }
  };
  dart.addRtiResources(html$.NodeIterator, ["html|NodeIterator"]);
  dart.setMethodSignature(html$.NodeIterator, () => dart.global.Object.setPrototypeOf({
    [S$2.$detach]: T$.VoidTovoid(),
    [S.$nextNode]: T.VoidToNodeN(),
    [S$.$previousNode]: T.VoidToNodeN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.NodeIterator))));
  dart.setStaticMethodSignature(html$.NodeIterator, () => ['new', '__']);
  dart.setGetterSignature(html$.NodeIterator, () => dart.global.Object.setPrototypeOf({
    [S$2.$pointerBeforeReferenceNode]: T$.boolN(),
    [S$2.$referenceNode]: T$3.NodeN$2(),
    [S$1.$root]: T$5.Node(),
    [S$2.$whatToShow]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NodeIterator))));
  dart.setLibraryUri(html$.NodeIterator, I[167]);
  dart.registerExtension("NodeIterator", html$.NodeIterator);
  const JavaScriptObject_ListBase$36$3 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$3.new = function() {
    G$.ListBaseOfNode().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$3).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$3.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$3, G$.ListBaseOfNode());
  const JavaScriptObject_ImmutableListMixin$36$3 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$3 {};
  (JavaScriptObject_ImmutableListMixin$36$3.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$3).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$3.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$3, G$.ImmutableListMixinOfNode());
  html$.NodeList = class NodeList extends JavaScriptObject_ImmutableListMixin$36$3 {
    static ['_#_#tearOff']() {
      return html$.NodeList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 23646, 24, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 23652, 25, "index");
      T$5.Node()[_as](value);
      if (value == null) dart.nullFailed(I[166], 23652, 37, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 23658, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 23686, 22, "index");
      return this[$_get](index);
    }
    [S$1._item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.NodeList, ["html|NodeList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.NodeList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$5.intToNode(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$1._item]: T.intToNodeN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.NodeList))));
  dart.setStaticMethodSignature(html$.NodeList, () => ['__']);
  dart.setGetterSignature(html$.NodeList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NodeList))));
  dart.setSetterSignature(html$.NodeList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.NodeList))));
  dart.setLibraryUri(html$.NodeList, I[167]);
  dart.registerExtension("NodeList", html$.NodeList);
  dart.registerExtension("RadioNodeList", html$.NodeList);
  html$.NonDocumentTypeChildNode = class NonDocumentTypeChildNode extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NonDocumentTypeChildNode.__();
    }
    get [S.$nextElementSibling]() {
      return this.nextElementSibling;
    }
    get [S.$previousElementSibling]() {
      return this.previousElementSibling;
    }
  };
  dart.addRtiResources(html$.NonDocumentTypeChildNode, ["html|NonDocumentTypeChildNode"]);
  dart.setStaticMethodSignature(html$.NonDocumentTypeChildNode, () => ['__']);
  dart.setGetterSignature(html$.NonDocumentTypeChildNode, () => dart.global.Object.setPrototypeOf({
    [S.$nextElementSibling]: T$3.ElementN(),
    [S.$previousElementSibling]: T$3.ElementN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NonDocumentTypeChildNode))));
  dart.setLibraryUri(html$.NonDocumentTypeChildNode, I[167]);
  dart.registerExtension("NonDocumentTypeChildNode", html$.NonDocumentTypeChildNode);
  html$.NonElementParentNode = class NonElementParentNode extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NonElementParentNode.__();
    }
    [S$1.$getElementById](...args) {
      return this.getElementById.apply(this, args);
    }
  };
  dart.addRtiResources(html$.NonElementParentNode, ["html|NonElementParentNode"]);
  dart.setMethodSignature(html$.NonElementParentNode, () => dart.global.Object.setPrototypeOf({[S$1.$getElementById]: T$4.StringToElementN()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.NonElementParentNode))));
  dart.setStaticMethodSignature(html$.NonElementParentNode, () => ['__']);
  dart.setLibraryUri(html$.NonElementParentNode, I[167]);
  dart.registerExtension("NonElementParentNode", html$.NonElementParentNode);
  html$.NoncedElement = class NoncedElement extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.NoncedElement.__();
    }
    get [S.$nonce]() {
      return this.nonce;
    }
    set [S.$nonce](value) {
      this.nonce = value;
    }
  };
  dart.addRtiResources(html$.NoncedElement, ["html|NoncedElement"]);
  dart.setStaticMethodSignature(html$.NoncedElement, () => ['__']);
  dart.setGetterSignature(html$.NoncedElement, () => dart.global.Object.setPrototypeOf({[S.$nonce]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NoncedElement))));
  dart.setSetterSignature(html$.NoncedElement, () => dart.global.Object.setPrototypeOf({[S.$nonce]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.NoncedElement))));
  dart.setLibraryUri(html$.NoncedElement, I[167]);
  dart.registerExtension("NoncedElement", html$.NoncedElement);
  html$.Notification = class Notification$ extends html$.EventTarget {
    static new(title, opts) {
      if (title == null) dart.nullFailed(I[166], 23741, 31, "title");
      let dir = opts && 'dir' in opts ? opts.dir : null;
      let body = opts && 'body' in opts ? opts.body : null;
      let lang = opts && 'lang' in opts ? opts.lang : null;
      let tag = opts && 'tag' in opts ? opts.tag : null;
      let icon = opts && 'icon' in opts ? opts.icon : null;
      let parsedOptions = new _js_helper.LinkedMap.new();
      if (dir != null) parsedOptions[$_set]("dir", dir);
      if (body != null) parsedOptions[$_set]("body", body);
      if (lang != null) parsedOptions[$_set]("lang", lang);
      if (tag != null) parsedOptions[$_set]("tag", tag);
      if (icon != null) parsedOptions[$_set]("icon", icon);
      return html$.Notification._factoryNotification(title, parsedOptions);
    }
    static ['_#new#tearOff'](title, opts) {
      if (title == null) dart.nullFailed(I[166], 23741, 31, "title");
      let dir = opts && 'dir' in opts ? opts.dir : null;
      let body = opts && 'body' in opts ? opts.body : null;
      let lang = opts && 'lang' in opts ? opts.lang : null;
      let tag = opts && 'tag' in opts ? opts.tag : null;
      let icon = opts && 'icon' in opts ? opts.icon : null;
      return html$.Notification.new(title, {dir: dir, body: body, lang: lang, tag: tag, icon: icon});
    }
    static ['_#_#tearOff']() {
      return html$.Notification.__();
    }
    static _factoryNotification(title, options = null) {
      if (title == null) dart.nullFailed(I[166], 23792, 51, "title");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return html$.Notification._create_1(title, options_1);
      }
      return html$.Notification._create_2(title);
    }
    static _create_1(title, options) {
      return new Notification(title, options);
    }
    static _create_2(title) {
      return new Notification(title);
    }
    static get supported() {
      return !!window.Notification;
    }
    get [S$2.$actions]() {
      return this.actions;
    }
    get [S$2.$badge]() {
      return this.badge;
    }
    get [S$1.$body]() {
      return this.body;
    }
    get [S$.$data]() {
      return this.data;
    }
    get [S.$dir]() {
      return this.dir;
    }
    get [S$2.$icon]() {
      return this.icon;
    }
    get [S$2.$image]() {
      return this.image;
    }
    get [S.$lang]() {
      return this.lang;
    }
    get [S$2.$renotify]() {
      return this.renotify;
    }
    get [S$2.$requireInteraction]() {
      return this.requireInteraction;
    }
    get [S$2.$silent]() {
      return this.silent;
    }
    get [S$2.$tag]() {
      return this.tag;
    }
    get [S$.$timestamp]() {
      return this.timestamp;
    }
    get [S.$title]() {
      return this.title;
    }
    get [S$2.$vibrate]() {
      return this.vibrate;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    static requestPermission() {
      let completer = G$.CompleterOfString().new();
      dart.global.Notification.requestPermission(dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 23853, 25, "value");
        completer.complete(value);
      }, T$.StringTovoid()));
      return completer.future;
    }
    get [S.$onClick]() {
      return html$.Notification.clickEvent.forTarget(this);
    }
    get [S.$onClose]() {
      return html$.Notification.closeEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.Notification.errorEvent.forTarget(this);
    }
    get [S$2.$onShow]() {
      return html$.Notification.showEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.Notification, ["html|Notification"]);
  dart.setMethodSignature(html$.Notification, () => dart.global.Object.setPrototypeOf({[S.$close]: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Notification))));
  dart.setStaticMethodSignature(html$.Notification, () => ['new', '__', '_factoryNotification', '_create_1', '_create_2', '_requestPermission', 'requestPermission']);
  dart.setGetterSignature(html$.Notification, () => dart.global.Object.setPrototypeOf({
    [S$2.$actions]: T$.ListN(),
    [S$2.$badge]: T$.StringN(),
    [S$1.$body]: T$.StringN(),
    [S$.$data]: T$.ObjectN(),
    [S.$dir]: T$.StringN(),
    [S$2.$icon]: T$.StringN(),
    [S$2.$image]: T$.StringN(),
    [S.$lang]: T$.StringN(),
    [S$2.$renotify]: T$.boolN(),
    [S$2.$requireInteraction]: T$.boolN(),
    [S$2.$silent]: T$.boolN(),
    [S$2.$tag]: T$.StringN(),
    [S$.$timestamp]: T$.intN(),
    [S.$title]: T$.StringN(),
    [S$2.$vibrate]: T$2.ListNOfint(),
    [S.$onClick]: T$3.StreamOfEvent(),
    [S.$onClose]: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S$2.$onShow]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Notification))));
  dart.setStaticGetterSignature(html$.Notification, () => ['supported', 'maxActions', 'permission']);
  dart.setLibraryUri(html$.Notification, I[167]);
  dart.setStaticFieldSignature(html$.Notification, () => ['clickEvent', 'closeEvent', 'errorEvent', 'showEvent']);
  dart.defineLazy(html$.Notification, {
    /*html$.Notification.clickEvent*/get clickEvent() {
      return C[402] || CT.C402;
    },
    /*html$.Notification.closeEvent*/get closeEvent() {
      return C[266] || CT.C266;
    },
    /*html$.Notification.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.Notification.showEvent*/get showEvent() {
      return C[403] || CT.C403;
    }
  }, false);
  dart.registerExtension("Notification", html$.Notification);
  html$.NotificationEvent = class NotificationEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.NotificationEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 23882, 36, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 23882, 46, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.NotificationEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 23882, 36, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 23882, 46, "eventInitDict");
      return html$.NotificationEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new NotificationEvent(type, eventInitDict);
    }
    get [S$1.$action]() {
      return this.action;
    }
    get [S$2.$notification]() {
      return this.notification;
    }
    get [S$2.$reply]() {
      return this.reply;
    }
  };
  dart.addRtiResources(html$.NotificationEvent, ["html|NotificationEvent"]);
  dart.setStaticMethodSignature(html$.NotificationEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.NotificationEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$action]: T$.StringN(),
    [S$2.$notification]: T.NotificationN(),
    [S$2.$reply]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.NotificationEvent))));
  dart.setLibraryUri(html$.NotificationEvent, I[167]);
  dart.registerExtension("NotificationEvent", html$.NotificationEvent);
  html$.OListElement = class OListElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.OListElement.__();
    }
    static new() {
      return html$.document.createElement("ol");
    }
    static ['_#new#tearOff']() {
      return html$.OListElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.OListElement.created();
    }
    get [$reversed]() {
      return this.reversed;
    }
    set [$reversed](value) {
      this.reversed = value;
    }
    get [S$.$start]() {
      return this.start;
    }
    set [S$.$start](value) {
      this.start = value;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
  };
  (html$.OListElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.OListElement).created.call(this);
    ;
  }).prototype = html$.OListElement.prototype;
  dart.addRtiResources(html$.OListElement, ["html|OListElement"]);
  dart.setStaticMethodSignature(html$.OListElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.OListElement, () => dart.global.Object.setPrototypeOf({
    [$reversed]: T$.boolN(),
    [S$.$start]: T$.int(),
    [S.$type]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.OListElement))));
  dart.setSetterSignature(html$.OListElement, () => dart.global.Object.setPrototypeOf({
    [$reversed]: T$.boolN(),
    [S$.$start]: T$.int(),
    [S.$type]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.OListElement))));
  dart.setLibraryUri(html$.OListElement, I[167]);
  dart.registerExtension("HTMLOListElement", html$.OListElement);
  html$.ObjectElement = class ObjectElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ObjectElement.__();
    }
    static new() {
      return T.ObjectElement()[_as](html$.document[S.$createElement]("object"));
    }
    static ['_#new#tearOff']() {
      return html$.ObjectElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.ObjectElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("object");
    }
    get [S$1.$contentWindow]() {
      return html$._convertNativeToDart_Window(this[S$1._get_contentWindow]);
    }
    get [S$1._get_contentWindow]() {
      return this.contentWindow;
    }
    get [S$.$data]() {
      return this.data;
    }
    set [S$.$data](value) {
      this.data = value;
    }
    get [S$.$form]() {
      return this.form;
    }
    get [$height]() {
      return this.height;
    }
    set [$height](value) {
      this.height = value;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
    get [S$1.$useMap]() {
      return this.useMap;
    }
    set [S$1.$useMap](value) {
      this.useMap = value;
    }
    get [S$.$validationMessage]() {
      return this.validationMessage;
    }
    get [S$.$validity]() {
      return this.validity;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
    get [S$.$willValidate]() {
      return this.willValidate;
    }
    [S$.__getter__](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$.__setter__](...args) {
      return this.__setter__.apply(this, args);
    }
    [S$.$checkValidity](...args) {
      return this.checkValidity.apply(this, args);
    }
    [S$.$reportValidity](...args) {
      return this.reportValidity.apply(this, args);
    }
    [S$.$setCustomValidity](...args) {
      return this.setCustomValidity.apply(this, args);
    }
  };
  (html$.ObjectElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ObjectElement).created.call(this);
    ;
  }).prototype = html$.ObjectElement.prototype;
  dart.addRtiResources(html$.ObjectElement, ["html|ObjectElement"]);
  dart.setMethodSignature(html$.ObjectElement, () => dart.global.Object.setPrototypeOf({
    [S$.__getter__]: T$5.StringToNode(),
    [S$.__setter__]: T$3.StringAndNodeTovoid(),
    [S$.$checkValidity]: T$.VoidTobool(),
    [S$.$reportValidity]: T$.VoidTobool(),
    [S$.$setCustomValidity]: T$.StringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ObjectElement))));
  dart.setStaticMethodSignature(html$.ObjectElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.ObjectElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$contentWindow]: T$4.WindowBaseN(),
    [S$1._get_contentWindow]: T$.dynamic(),
    [S$.$data]: T$.String(),
    [S$.$form]: T$4.FormElementN(),
    [$height]: T$.String(),
    [$name]: T$.String(),
    [S.$type]: T$.String(),
    [S$1.$useMap]: T$.String(),
    [S$.$validationMessage]: T$.String(),
    [S$.$validity]: T$4.ValidityState(),
    [$width]: T$.String(),
    [S$.$willValidate]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ObjectElement))));
  dart.setSetterSignature(html$.ObjectElement, () => dart.global.Object.setPrototypeOf({
    [S$.$data]: T$.String(),
    [$height]: T$.String(),
    [$name]: T$.String(),
    [S.$type]: T$.String(),
    [S$1.$useMap]: T$.String(),
    [$width]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.ObjectElement))));
  dart.setStaticGetterSignature(html$.ObjectElement, () => ['supported']);
  dart.setLibraryUri(html$.ObjectElement, I[167]);
  dart.registerExtension("HTMLObjectElement", html$.ObjectElement);
  html$.OffscreenCanvas = class OffscreenCanvas$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.OffscreenCanvas.__();
    }
    static new(width, height) {
      if (width == null) dart.nullFailed(I[166], 24023, 31, "width");
      if (height == null) dart.nullFailed(I[166], 24023, 42, "height");
      return html$.OffscreenCanvas._create_1(width, height);
    }
    static ['_#new#tearOff'](width, height) {
      if (width == null) dart.nullFailed(I[166], 24023, 31, "width");
      if (height == null) dart.nullFailed(I[166], 24023, 42, "height");
      return html$.OffscreenCanvas.new(width, height);
    }
    static _create_1(width, height) {
      return new OffscreenCanvas(width, height);
    }
    get [$height]() {
      return this.height;
    }
    set [$height](value) {
      this.height = value;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
    [S$2.$convertToBlob](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$4.Blob(), this.convertToBlob(options_dict));
    }
    [S$.$getContext](contextType, attributes = null) {
      if (contextType == null) dart.nullFailed(I[166], 24046, 29, "contextType");
      if (attributes != null) {
        let attributes_1 = html_common.convertDartToNative_Dictionary(attributes);
        return this[S$._getContext_1](contextType, attributes_1);
      }
      return this[S$._getContext_2](contextType);
    }
    [S$._getContext_1](...args) {
      return this.getContext.apply(this, args);
    }
    [S$._getContext_2](...args) {
      return this.getContext.apply(this, args);
    }
    [S$2.$transferToImageBitmap](...args) {
      return this.transferToImageBitmap.apply(this, args);
    }
  };
  dart.addRtiResources(html$.OffscreenCanvas, ["html|OffscreenCanvas"]);
  dart.setMethodSignature(html$.OffscreenCanvas, () => dart.global.Object.setPrototypeOf({
    [S$2.$convertToBlob]: T$5.MapNToFutureOfBlob(),
    [S$.$getContext]: T$4.StringAndMapNToObjectN(),
    [S$._getContext_1]: T$4.dynamicAnddynamicToObjectN(),
    [S$._getContext_2]: T$.dynamicToObjectN(),
    [S$2.$transferToImageBitmap]: T$5.VoidToImageBitmap()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.OffscreenCanvas))));
  dart.setStaticMethodSignature(html$.OffscreenCanvas, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.OffscreenCanvas, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.intN(),
    [$width]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.OffscreenCanvas))));
  dart.setSetterSignature(html$.OffscreenCanvas, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.intN(),
    [$width]: T$.intN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.OffscreenCanvas))));
  dart.setLibraryUri(html$.OffscreenCanvas, I[167]);
  dart.registerExtension("OffscreenCanvas", html$.OffscreenCanvas);
  html$.OffscreenCanvasRenderingContext2D = class OffscreenCanvasRenderingContext2D extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.OffscreenCanvasRenderingContext2D.__();
    }
    get [S$.$canvas]() {
      return this.canvas;
    }
    get [S.$direction]() {
      return this.direction;
    }
    set [S.$direction](value) {
      this.direction = value;
    }
    get [S$.$fillStyle]() {
      return this.fillStyle;
    }
    set [S$.$fillStyle](value) {
      this.fillStyle = value;
    }
    get [S$.$filter]() {
      return this.filter;
    }
    set [S$.$filter](value) {
      this.filter = value;
    }
    get [S$.$font]() {
      return this.font;
    }
    set [S$.$font](value) {
      this.font = value;
    }
    get [S$.$globalAlpha]() {
      return this.globalAlpha;
    }
    set [S$.$globalAlpha](value) {
      this.globalAlpha = value;
    }
    get [S$.$globalCompositeOperation]() {
      return this.globalCompositeOperation;
    }
    set [S$.$globalCompositeOperation](value) {
      this.globalCompositeOperation = value;
    }
    get [S$.$imageSmoothingEnabled]() {
      return this.imageSmoothingEnabled;
    }
    set [S$.$imageSmoothingEnabled](value) {
      this.imageSmoothingEnabled = value;
    }
    get [S$.$imageSmoothingQuality]() {
      return this.imageSmoothingQuality;
    }
    set [S$.$imageSmoothingQuality](value) {
      this.imageSmoothingQuality = value;
    }
    get [S$.$lineCap]() {
      return this.lineCap;
    }
    set [S$.$lineCap](value) {
      this.lineCap = value;
    }
    get [S$.$lineDashOffset]() {
      return this.lineDashOffset;
    }
    set [S$.$lineDashOffset](value) {
      this.lineDashOffset = value;
    }
    get [S$.$lineJoin]() {
      return this.lineJoin;
    }
    set [S$.$lineJoin](value) {
      this.lineJoin = value;
    }
    get [S$.$lineWidth]() {
      return this.lineWidth;
    }
    set [S$.$lineWidth](value) {
      this.lineWidth = value;
    }
    get [S$.$miterLimit]() {
      return this.miterLimit;
    }
    set [S$.$miterLimit](value) {
      this.miterLimit = value;
    }
    get [S$.$shadowBlur]() {
      return this.shadowBlur;
    }
    set [S$.$shadowBlur](value) {
      this.shadowBlur = value;
    }
    get [S$.$shadowColor]() {
      return this.shadowColor;
    }
    set [S$.$shadowColor](value) {
      this.shadowColor = value;
    }
    get [S$.$shadowOffsetX]() {
      return this.shadowOffsetX;
    }
    set [S$.$shadowOffsetX](value) {
      this.shadowOffsetX = value;
    }
    get [S$.$shadowOffsetY]() {
      return this.shadowOffsetY;
    }
    set [S$.$shadowOffsetY](value) {
      this.shadowOffsetY = value;
    }
    get [S$.$strokeStyle]() {
      return this.strokeStyle;
    }
    set [S$.$strokeStyle](value) {
      this.strokeStyle = value;
    }
    get [S$.$textAlign]() {
      return this.textAlign;
    }
    set [S$.$textAlign](value) {
      this.textAlign = value;
    }
    get [S$.$textBaseline]() {
      return this.textBaseline;
    }
    set [S$.$textBaseline](value) {
      this.textBaseline = value;
    }
    [S$.$beginPath](...args) {
      return this.beginPath.apply(this, args);
    }
    [S$.$clearRect](...args) {
      return this.clearRect.apply(this, args);
    }
    [S$.$clip](...args) {
      return this.clip.apply(this, args);
    }
    [S$2.$commit]() {
      return js_util.promiseToFuture(T$.dynamic(), this.commit());
    }
    [S$.$createImageData](data_OR_imagedata_OR_sw, sh_OR_sw = null, imageDataColorSettings_OR_sh = null, imageDataColorSettings = null) {
      if (T$4.ImageData()[_is](data_OR_imagedata_OR_sw) && sh_OR_sw == null && imageDataColorSettings_OR_sh == null && imageDataColorSettings == null) {
        let imagedata_1 = html_common.convertDartToNative_ImageData(data_OR_imagedata_OR_sw);
        return html_common.convertNativeToDart_ImageData(this[S$._createImageData_1](imagedata_1));
      }
      if (sh_OR_sw != null && T$.int()[_is](data_OR_imagedata_OR_sw) && imageDataColorSettings_OR_sh == null && imageDataColorSettings == null) {
        return html_common.convertNativeToDart_ImageData(this[S$._createImageData_2](data_OR_imagedata_OR_sw, sh_OR_sw));
      }
      if (T$.Map()[_is](imageDataColorSettings_OR_sh) && sh_OR_sw != null && T$.int()[_is](data_OR_imagedata_OR_sw) && imageDataColorSettings == null) {
        let imageDataColorSettings_1 = html_common.convertDartToNative_Dictionary(imageDataColorSettings_OR_sh);
        return html_common.convertNativeToDart_ImageData(this[S$._createImageData_3](data_OR_imagedata_OR_sw, sh_OR_sw, imageDataColorSettings_1));
      }
      if (imageDataColorSettings != null && T$.int()[_is](imageDataColorSettings_OR_sh) && sh_OR_sw != null && data_OR_imagedata_OR_sw != null) {
        let imageDataColorSettings_1 = html_common.convertDartToNative_Dictionary(imageDataColorSettings);
        return html_common.convertNativeToDart_ImageData(this[S$._createImageData_4](data_OR_imagedata_OR_sw, sh_OR_sw, imageDataColorSettings_OR_sh, imageDataColorSettings_1));
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$._createImageData_1](...args) {
      return this.createImageData.apply(this, args);
    }
    [S$._createImageData_2](...args) {
      return this.createImageData.apply(this, args);
    }
    [S$._createImageData_3](...args) {
      return this.createImageData.apply(this, args);
    }
    [S$._createImageData_4](...args) {
      return this.createImageData.apply(this, args);
    }
    [S$.$createLinearGradient](...args) {
      return this.createLinearGradient.apply(this, args);
    }
    [S$.$createPattern](...args) {
      return this.createPattern.apply(this, args);
    }
    [S$.$createRadialGradient](...args) {
      return this.createRadialGradient.apply(this, args);
    }
    [S$.$drawImage](...args) {
      return this.drawImage.apply(this, args);
    }
    [S$.$fill](...args) {
      return this.fill.apply(this, args);
    }
    [S$.$fillRect](...args) {
      return this.fillRect.apply(this, args);
    }
    [S$.$fillText](...args) {
      return this.fillText.apply(this, args);
    }
    [S$.$getImageData](sx, sy, sw, sh) {
      if (sx == null) dart.nullFailed(I[166], 24236, 30, "sx");
      if (sy == null) dart.nullFailed(I[166], 24236, 38, "sy");
      if (sw == null) dart.nullFailed(I[166], 24236, 46, "sw");
      if (sh == null) dart.nullFailed(I[166], 24236, 54, "sh");
      return html_common.convertNativeToDart_ImageData(this[S$._getImageData_1](sx, sy, sw, sh));
    }
    [S$._getImageData_1](...args) {
      return this.getImageData.apply(this, args);
    }
    [S$.$getLineDash](...args) {
      return this.getLineDash.apply(this, args);
    }
    [S$.$isPointInPath](...args) {
      return this.isPointInPath.apply(this, args);
    }
    [S$.$isPointInStroke](...args) {
      return this.isPointInStroke.apply(this, args);
    }
    [S$.$measureText](...args) {
      return this.measureText.apply(this, args);
    }
    [S$.$putImageData](imagedata, dx, dy, dirtyX = null, dirtyY = null, dirtyWidth = null, dirtyHeight = null) {
      if (imagedata == null) dart.nullFailed(I[166], 24252, 31, "imagedata");
      if (dx == null) dart.nullFailed(I[166], 24252, 46, "dx");
      if (dy == null) dart.nullFailed(I[166], 24252, 54, "dy");
      if (dirtyX == null && dirtyY == null && dirtyWidth == null && dirtyHeight == null) {
        let imagedata_1 = html_common.convertDartToNative_ImageData(imagedata);
        this[S$._putImageData_1](imagedata_1, dx, dy);
        return;
      }
      if (dirtyHeight != null && dirtyWidth != null && dirtyY != null && dirtyX != null) {
        let imagedata_1 = html_common.convertDartToNative_ImageData(imagedata);
        this[S$._putImageData_2](imagedata_1, dx, dy, dirtyX, dirtyY, dirtyWidth, dirtyHeight);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$._putImageData_1](...args) {
      return this.putImageData.apply(this, args);
    }
    [S$._putImageData_2](...args) {
      return this.putImageData.apply(this, args);
    }
    [S$.$resetTransform](...args) {
      return this.resetTransform.apply(this, args);
    }
    [S$.$restore](...args) {
      return this.restore.apply(this, args);
    }
    [S$.$rotate](...args) {
      return this.rotate.apply(this, args);
    }
    [S$.$save](...args) {
      return this.save.apply(this, args);
    }
    [S$.$scale](...args) {
      return this.scale.apply(this, args);
    }
    [S$.$setLineDash](...args) {
      return this.setLineDash.apply(this, args);
    }
    [S$.$setTransform](...args) {
      return this.setTransform.apply(this, args);
    }
    [S$.$stroke](...args) {
      return this.stroke.apply(this, args);
    }
    [S$.$strokeRect](...args) {
      return this.strokeRect.apply(this, args);
    }
    [S$.$strokeText](...args) {
      return this.strokeText.apply(this, args);
    }
    [S$.$transform](...args) {
      return this.transform.apply(this, args);
    }
    [S.$translate](...args) {
      return this.translate.apply(this, args);
    }
    [S$.$arc](...args) {
      return this.arc.apply(this, args);
    }
    [S$.$arcTo](...args) {
      return this.arcTo.apply(this, args);
    }
    [S$.$bezierCurveTo](...args) {
      return this.bezierCurveTo.apply(this, args);
    }
    [S$.$closePath](...args) {
      return this.closePath.apply(this, args);
    }
    [S$.$ellipse](...args) {
      return this.ellipse.apply(this, args);
    }
    [S$.$lineTo](...args) {
      return this.lineTo.apply(this, args);
    }
    [S$.$moveTo](...args) {
      return this.moveTo.apply(this, args);
    }
    [S$.$quadraticCurveTo](...args) {
      return this.quadraticCurveTo.apply(this, args);
    }
    [S$.$rect](...args) {
      return this.rect.apply(this, args);
    }
  };
  dart.addRtiResources(html$.OffscreenCanvasRenderingContext2D, ["html|OffscreenCanvasRenderingContext2D", "html|_CanvasPath", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.OffscreenCanvasRenderingContext2D, () => dart.global.Object.setPrototypeOf({
    [S$.$beginPath]: T$.VoidTovoid(),
    [S$.$clearRect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$clip]: T$4.Path2DNTovoid(),
    [S$2.$commit]: T$.VoidToFuture(),
    [S$.$createImageData]: T$4.dynamicAndintNAnddynamic__ToImageData(),
    [S$._createImageData_1]: T$.dynamicTodynamic(),
    [S$._createImageData_2]: T$4.intAnddynamicTodynamic(),
    [S$._createImageData_3]: T$4.intAnddynamicAnddynamicTodynamic(),
    [S$._createImageData_4]: T$4.dynamicAnddynamicAndintN__Todynamic(),
    [S$.$createLinearGradient]: T$4.numAndnumAndnum__ToCanvasGradient(),
    [S$.$createPattern]: T.dynamicAndStringToCanvasPatternN(),
    [S$.$createRadialGradient]: T$4.numAndnumAndnum__ToCanvasGradient$1(),
    [S$.$drawImage]: T.dynamicAndnumAndnum__Tovoid(),
    [S$.$fill]: T$4.dynamicAndStringNTovoid(),
    [S$.$fillRect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$fillText]: T$4.StringAndnumAndnum__Tovoid(),
    [S$.$getImageData]: T$4.intAndintAndint__ToImageData(),
    [S$._getImageData_1]: T$4.dynamicAnddynamicAnddynamic__Todynamic(),
    [S$.$getLineDash]: T$4.VoidToListOfnum(),
    [S$.$isPointInPath]: T$4.dynamicAndnumAnddynamic__Tobool(),
    [S$.$isPointInStroke]: T$4.dynamicAndnumAndnumNTobool(),
    [S$.$measureText]: T$4.StringToTextMetrics(),
    [S$.$putImageData]: T$4.ImageDataAndintAndint__Tovoid(),
    [S$._putImageData_1]: T$0.dynamicAnddynamicAnddynamicTovoid(),
    [S$._putImageData_2]: T$4.dynamicAnddynamicAnddynamic__Tovoid(),
    [S$.$resetTransform]: T$.VoidTovoid(),
    [S$.$restore]: T$.VoidTovoid(),
    [S$.$rotate]: T$2.numTovoid(),
    [S$.$save]: T$.VoidTovoid(),
    [S$.$scale]: T$4.numAndnumTovoid(),
    [S$.$setLineDash]: T$4.ListOfnumTovoid(),
    [S$.$setTransform]: T$4.numAndnumAndnum__Tovoid$1(),
    [S$.$stroke]: T$4.Path2DNTovoid(),
    [S$.$strokeRect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$strokeText]: T$4.StringAndnumAndnum__Tovoid(),
    [S$.$transform]: T$4.numAndnumAndnum__Tovoid$1(),
    [S.$translate]: T$4.numAndnumTovoid(),
    [S$.$arc]: T$4.numAndnumAndnum__Tovoid$2(),
    [S$.$arcTo]: T$4.numAndnumAndnum__Tovoid$3(),
    [S$.$bezierCurveTo]: T$4.numAndnumAndnum__Tovoid$1(),
    [S$.$closePath]: T$.VoidTovoid(),
    [S$.$ellipse]: T$4.numAndnumAndnum__Tovoid$4(),
    [S$.$lineTo]: T$4.numAndnumTovoid(),
    [S$.$moveTo]: T$4.numAndnumTovoid(),
    [S$.$quadraticCurveTo]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$rect]: T$4.numAndnumAndnum__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.OffscreenCanvasRenderingContext2D))));
  dart.setStaticMethodSignature(html$.OffscreenCanvasRenderingContext2D, () => ['__']);
  dart.setGetterSignature(html$.OffscreenCanvasRenderingContext2D, () => dart.global.Object.setPrototypeOf({
    [S$.$canvas]: T.OffscreenCanvasN(),
    [S.$direction]: T$.StringN(),
    [S$.$fillStyle]: T$.ObjectN(),
    [S$.$filter]: T$.StringN(),
    [S$.$font]: T$.StringN(),
    [S$.$globalAlpha]: T$3.numN(),
    [S$.$globalCompositeOperation]: T$.StringN(),
    [S$.$imageSmoothingEnabled]: T$.boolN(),
    [S$.$imageSmoothingQuality]: T$.StringN(),
    [S$.$lineCap]: T$.StringN(),
    [S$.$lineDashOffset]: T$3.numN(),
    [S$.$lineJoin]: T$.StringN(),
    [S$.$lineWidth]: T$3.numN(),
    [S$.$miterLimit]: T$3.numN(),
    [S$.$shadowBlur]: T$3.numN(),
    [S$.$shadowColor]: T$.StringN(),
    [S$.$shadowOffsetX]: T$3.numN(),
    [S$.$shadowOffsetY]: T$3.numN(),
    [S$.$strokeStyle]: T$.ObjectN(),
    [S$.$textAlign]: T$.StringN(),
    [S$.$textBaseline]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.OffscreenCanvasRenderingContext2D))));
  dart.setSetterSignature(html$.OffscreenCanvasRenderingContext2D, () => dart.global.Object.setPrototypeOf({
    [S.$direction]: T$.StringN(),
    [S$.$fillStyle]: T$.ObjectN(),
    [S$.$filter]: T$.StringN(),
    [S$.$font]: T$.StringN(),
    [S$.$globalAlpha]: T$3.numN(),
    [S$.$globalCompositeOperation]: T$.StringN(),
    [S$.$imageSmoothingEnabled]: T$.boolN(),
    [S$.$imageSmoothingQuality]: T$.StringN(),
    [S$.$lineCap]: T$.StringN(),
    [S$.$lineDashOffset]: T$3.numN(),
    [S$.$lineJoin]: T$.StringN(),
    [S$.$lineWidth]: T$3.numN(),
    [S$.$miterLimit]: T$3.numN(),
    [S$.$shadowBlur]: T$3.numN(),
    [S$.$shadowColor]: T$.StringN(),
    [S$.$shadowOffsetX]: T$3.numN(),
    [S$.$shadowOffsetY]: T$3.numN(),
    [S$.$strokeStyle]: T$.ObjectN(),
    [S$.$textAlign]: T$.StringN(),
    [S$.$textBaseline]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.OffscreenCanvasRenderingContext2D))));
  dart.setLibraryUri(html$.OffscreenCanvasRenderingContext2D, I[167]);
  dart.registerExtension("OffscreenCanvasRenderingContext2D", html$.OffscreenCanvasRenderingContext2D);
  html$.OptGroupElement = class OptGroupElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.OptGroupElement.__();
    }
    static new() {
      return html$.document.createElement("optgroup");
    }
    static ['_#new#tearOff']() {
      return html$.OptGroupElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.OptGroupElement.created();
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$label]() {
      return this.label;
    }
    set [S$.$label](value) {
      this.label = value;
    }
  };
  (html$.OptGroupElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.OptGroupElement).created.call(this);
    ;
  }).prototype = html$.OptGroupElement.prototype;
  dart.addRtiResources(html$.OptGroupElement, ["html|OptGroupElement"]);
  dart.setStaticMethodSignature(html$.OptGroupElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.OptGroupElement, () => dart.global.Object.setPrototypeOf({
    [S$.$disabled]: T$.bool(),
    [S$.$label]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.OptGroupElement))));
  dart.setSetterSignature(html$.OptGroupElement, () => dart.global.Object.setPrototypeOf({
    [S$.$disabled]: T$.bool(),
    [S$.$label]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.OptGroupElement))));
  dart.setLibraryUri(html$.OptGroupElement, I[167]);
  dart.registerExtension("HTMLOptGroupElement", html$.OptGroupElement);
  html$.OptionElement = class OptionElement extends html$.HtmlElement {
    static new(opts) {
      let data = opts && 'data' in opts ? opts.data : "";
      if (data == null) dart.nullFailed(I[166], 24365, 15, "data");
      let value = opts && 'value' in opts ? opts.value : "";
      if (value == null) dart.nullFailed(I[166], 24365, 33, "value");
      let selected = opts && 'selected' in opts ? opts.selected : false;
      if (selected == null) dart.nullFailed(I[166], 24365, 50, "selected");
      return html$.OptionElement.__(data, value, null, selected);
    }
    static ['_#new#tearOff'](opts) {
      let data = opts && 'data' in opts ? opts.data : "";
      if (data == null) dart.nullFailed(I[166], 24365, 15, "data");
      let value = opts && 'value' in opts ? opts.value : "";
      if (value == null) dart.nullFailed(I[166], 24365, 33, "value");
      let selected = opts && 'selected' in opts ? opts.selected : false;
      if (selected == null) dart.nullFailed(I[166], 24365, 50, "selected");
      return html$.OptionElement.new({data: data, value: value, selected: selected});
    }
    static __(data = null, value = null, defaultSelected = null, selected = null) {
      if (selected != null) {
        return html$.OptionElement._create_1(data, value, defaultSelected, selected);
      }
      if (defaultSelected != null) {
        return html$.OptionElement._create_2(data, value, defaultSelected);
      }
      if (value != null) {
        return html$.OptionElement._create_3(data, value);
      }
      if (data != null) {
        return html$.OptionElement._create_4(data);
      }
      return html$.OptionElement._create_5();
    }
    static ['_#_#tearOff'](data = null, value = null, defaultSelected = null, selected = null) {
      return html$.OptionElement.__(data, value, defaultSelected, selected);
    }
    static _create_1(data, value, defaultSelected, selected) {
      return new Option(data, value, defaultSelected, selected);
    }
    static _create_2(data, value, defaultSelected) {
      return new Option(data, value, defaultSelected);
    }
    static _create_3(data, value) {
      return new Option(data, value);
    }
    static _create_4(data) {
      return new Option(data);
    }
    static _create_5() {
      return new Option();
    }
    static ['_#created#tearOff']() {
      return new html$.OptionElement.created();
    }
    get [S$2.$defaultSelected]() {
      return this.defaultSelected;
    }
    set [S$2.$defaultSelected](value) {
      this.defaultSelected = value;
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$form]() {
      return this.form;
    }
    get [S.$index]() {
      return this.index;
    }
    get [S$.$label]() {
      return this.label;
    }
    set [S$.$label](value) {
      this.label = value;
    }
    get [S$.$selected]() {
      return this.selected;
    }
    set [S$.$selected](value) {
      this.selected = value;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  (html$.OptionElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.OptionElement).created.call(this);
    ;
  }).prototype = html$.OptionElement.prototype;
  dart.addRtiResources(html$.OptionElement, ["html|OptionElement"]);
  dart.setStaticMethodSignature(html$.OptionElement, () => ['new', '__', '_create_1', '_create_2', '_create_3', '_create_4', '_create_5']);
  dart.setGetterSignature(html$.OptionElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$defaultSelected]: T$.bool(),
    [S$.$disabled]: T$.bool(),
    [S$.$form]: T$4.FormElementN(),
    [S.$index]: T$.int(),
    [S$.$label]: T$.StringN(),
    [S$.$selected]: T$.bool(),
    [S.$value]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.OptionElement))));
  dart.setSetterSignature(html$.OptionElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$defaultSelected]: T$.bool(),
    [S$.$disabled]: T$.bool(),
    [S$.$label]: T$.StringN(),
    [S$.$selected]: T$.bool(),
    [S.$value]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.OptionElement))));
  dart.setLibraryUri(html$.OptionElement, I[167]);
  dart.registerExtension("HTMLOptionElement", html$.OptionElement);
  html$.OutputElement = class OutputElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.OutputElement.__();
    }
    static new() {
      return T.OutputElement()[_as](html$.document[S.$createElement]("output"));
    }
    static ['_#new#tearOff']() {
      return html$.OutputElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.OutputElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("output");
    }
    get [S$1.$defaultValue]() {
      return this.defaultValue;
    }
    set [S$1.$defaultValue](value) {
      this.defaultValue = value;
    }
    get [S$.$form]() {
      return this.form;
    }
    get [S$1.$htmlFor]() {
      return this.htmlFor;
    }
    get [S$.$labels]() {
      return this.labels;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S$.$validationMessage]() {
      return this.validationMessage;
    }
    get [S$.$validity]() {
      return this.validity;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
    get [S$.$willValidate]() {
      return this.willValidate;
    }
    [S$.$checkValidity](...args) {
      return this.checkValidity.apply(this, args);
    }
    [S$.$reportValidity](...args) {
      return this.reportValidity.apply(this, args);
    }
    [S$.$setCustomValidity](...args) {
      return this.setCustomValidity.apply(this, args);
    }
  };
  (html$.OutputElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.OutputElement).created.call(this);
    ;
  }).prototype = html$.OutputElement.prototype;
  dart.addRtiResources(html$.OutputElement, ["html|OutputElement"]);
  dart.setMethodSignature(html$.OutputElement, () => dart.global.Object.setPrototypeOf({
    [S$.$checkValidity]: T$.VoidTobool(),
    [S$.$reportValidity]: T$.VoidTobool(),
    [S$.$setCustomValidity]: T$.StringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.OutputElement))));
  dart.setStaticMethodSignature(html$.OutputElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.OutputElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$defaultValue]: T$.StringN(),
    [S$.$form]: T$4.FormElementN(),
    [S$1.$htmlFor]: T$4.DomTokenListN(),
    [S$.$labels]: T$4.ListNOfNode(),
    [$name]: T$.StringN(),
    [S.$type]: T$.StringN(),
    [S$.$validationMessage]: T$.StringN(),
    [S$.$validity]: T.ValidityStateN(),
    [S.$value]: T$.StringN(),
    [S$.$willValidate]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.OutputElement))));
  dart.setSetterSignature(html$.OutputElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$defaultValue]: T$.StringN(),
    [$name]: T$.StringN(),
    [S.$value]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.OutputElement))));
  dart.setStaticGetterSignature(html$.OutputElement, () => ['supported']);
  dart.setLibraryUri(html$.OutputElement, I[167]);
  dart.registerExtension("HTMLOutputElement", html$.OutputElement);
  html$.OverconstrainedError = class OverconstrainedError$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.OverconstrainedError.__();
    }
    static new(constraint, message) {
      if (constraint == null) dart.nullFailed(I[166], 24516, 39, "constraint");
      if (message == null) dart.nullFailed(I[166], 24516, 58, "message");
      return html$.OverconstrainedError._create_1(constraint, message);
    }
    static ['_#new#tearOff'](constraint, message) {
      if (constraint == null) dart.nullFailed(I[166], 24516, 39, "constraint");
      if (message == null) dart.nullFailed(I[166], 24516, 58, "message");
      return html$.OverconstrainedError.new(constraint, message);
    }
    static _create_1(constraint, message) {
      return new OverconstrainedError(constraint, message);
    }
    get [S$2.$constraint]() {
      return this.constraint;
    }
    get [$message]() {
      return this.message;
    }
    get [$name]() {
      return this.name;
    }
  };
  dart.addRtiResources(html$.OverconstrainedError, ["html|OverconstrainedError"]);
  dart.setStaticMethodSignature(html$.OverconstrainedError, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.OverconstrainedError, () => dart.global.Object.setPrototypeOf({
    [S$2.$constraint]: T$.StringN(),
    [$message]: T$.StringN(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.OverconstrainedError))));
  dart.setLibraryUri(html$.OverconstrainedError, I[167]);
  dart.registerExtension("OverconstrainedError", html$.OverconstrainedError);
  html$.PageTransitionEvent = class PageTransitionEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.PageTransitionEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 24542, 38, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.PageTransitionEvent._create_1(type, eventInitDict_1);
      }
      return html$.PageTransitionEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 24542, 38, "type");
      return html$.PageTransitionEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new PageTransitionEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new PageTransitionEvent(type);
    }
    get [S$2.$persisted]() {
      return this.persisted;
    }
  };
  dart.addRtiResources(html$.PageTransitionEvent, ["html|PageTransitionEvent"]);
  dart.setStaticMethodSignature(html$.PageTransitionEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.PageTransitionEvent, () => dart.global.Object.setPrototypeOf({[S$2.$persisted]: T$.boolN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PageTransitionEvent))));
  dart.setLibraryUri(html$.PageTransitionEvent, I[167]);
  dart.registerExtension("PageTransitionEvent", html$.PageTransitionEvent);
  html$.PaintRenderingContext2D = class PaintRenderingContext2D extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PaintRenderingContext2D.__();
    }
    get [S$.$currentTransform]() {
      return this.currentTransform;
    }
    set [S$.$currentTransform](value) {
      this.currentTransform = value;
    }
    get [S$.$fillStyle]() {
      return this.fillStyle;
    }
    set [S$.$fillStyle](value) {
      this.fillStyle = value;
    }
    get [S$.$filter]() {
      return this.filter;
    }
    set [S$.$filter](value) {
      this.filter = value;
    }
    get [S$.$globalAlpha]() {
      return this.globalAlpha;
    }
    set [S$.$globalAlpha](value) {
      this.globalAlpha = value;
    }
    get [S$.$globalCompositeOperation]() {
      return this.globalCompositeOperation;
    }
    set [S$.$globalCompositeOperation](value) {
      this.globalCompositeOperation = value;
    }
    get [S$.$imageSmoothingEnabled]() {
      return this.imageSmoothingEnabled;
    }
    set [S$.$imageSmoothingEnabled](value) {
      this.imageSmoothingEnabled = value;
    }
    get [S$.$imageSmoothingQuality]() {
      return this.imageSmoothingQuality;
    }
    set [S$.$imageSmoothingQuality](value) {
      this.imageSmoothingQuality = value;
    }
    get [S$.$lineCap]() {
      return this.lineCap;
    }
    set [S$.$lineCap](value) {
      this.lineCap = value;
    }
    get [S$.$lineDashOffset]() {
      return this.lineDashOffset;
    }
    set [S$.$lineDashOffset](value) {
      this.lineDashOffset = value;
    }
    get [S$.$lineJoin]() {
      return this.lineJoin;
    }
    set [S$.$lineJoin](value) {
      this.lineJoin = value;
    }
    get [S$.$lineWidth]() {
      return this.lineWidth;
    }
    set [S$.$lineWidth](value) {
      this.lineWidth = value;
    }
    get [S$.$miterLimit]() {
      return this.miterLimit;
    }
    set [S$.$miterLimit](value) {
      this.miterLimit = value;
    }
    get [S$.$shadowBlur]() {
      return this.shadowBlur;
    }
    set [S$.$shadowBlur](value) {
      this.shadowBlur = value;
    }
    get [S$.$shadowColor]() {
      return this.shadowColor;
    }
    set [S$.$shadowColor](value) {
      this.shadowColor = value;
    }
    get [S$.$shadowOffsetX]() {
      return this.shadowOffsetX;
    }
    set [S$.$shadowOffsetX](value) {
      this.shadowOffsetX = value;
    }
    get [S$.$shadowOffsetY]() {
      return this.shadowOffsetY;
    }
    set [S$.$shadowOffsetY](value) {
      this.shadowOffsetY = value;
    }
    get [S$.$strokeStyle]() {
      return this.strokeStyle;
    }
    set [S$.$strokeStyle](value) {
      this.strokeStyle = value;
    }
    [S$.$beginPath](...args) {
      return this.beginPath.apply(this, args);
    }
    [S$.$clearRect](...args) {
      return this.clearRect.apply(this, args);
    }
    [S$.$clip](...args) {
      return this.clip.apply(this, args);
    }
    [S$.$createLinearGradient](...args) {
      return this.createLinearGradient.apply(this, args);
    }
    [S$.$createPattern](...args) {
      return this.createPattern.apply(this, args);
    }
    [S$.$createRadialGradient](...args) {
      return this.createRadialGradient.apply(this, args);
    }
    [S$.$drawImage](...args) {
      return this.drawImage.apply(this, args);
    }
    [S$.$fill](...args) {
      return this.fill.apply(this, args);
    }
    [S$.$fillRect](...args) {
      return this.fillRect.apply(this, args);
    }
    [S$.$getLineDash](...args) {
      return this.getLineDash.apply(this, args);
    }
    [S$.$isPointInPath](...args) {
      return this.isPointInPath.apply(this, args);
    }
    [S$.$isPointInStroke](...args) {
      return this.isPointInStroke.apply(this, args);
    }
    [S$.$resetTransform](...args) {
      return this.resetTransform.apply(this, args);
    }
    [S$.$restore](...args) {
      return this.restore.apply(this, args);
    }
    [S$.$rotate](...args) {
      return this.rotate.apply(this, args);
    }
    [S$.$save](...args) {
      return this.save.apply(this, args);
    }
    [S$.$scale](...args) {
      return this.scale.apply(this, args);
    }
    [S$.$setLineDash](...args) {
      return this.setLineDash.apply(this, args);
    }
    [S$.$setTransform](...args) {
      return this.setTransform.apply(this, args);
    }
    [S$.$stroke](...args) {
      return this.stroke.apply(this, args);
    }
    [S$.$strokeRect](...args) {
      return this.strokeRect.apply(this, args);
    }
    [S$.$transform](...args) {
      return this.transform.apply(this, args);
    }
    [S.$translate](...args) {
      return this.translate.apply(this, args);
    }
    [S$.$arc](...args) {
      return this.arc.apply(this, args);
    }
    [S$.$arcTo](...args) {
      return this.arcTo.apply(this, args);
    }
    [S$.$bezierCurveTo](...args) {
      return this.bezierCurveTo.apply(this, args);
    }
    [S$.$closePath](...args) {
      return this.closePath.apply(this, args);
    }
    [S$.$ellipse](...args) {
      return this.ellipse.apply(this, args);
    }
    [S$.$lineTo](...args) {
      return this.lineTo.apply(this, args);
    }
    [S$.$moveTo](...args) {
      return this.moveTo.apply(this, args);
    }
    [S$.$quadraticCurveTo](...args) {
      return this.quadraticCurveTo.apply(this, args);
    }
    [S$.$rect](...args) {
      return this.rect.apply(this, args);
    }
  };
  dart.addRtiResources(html$.PaintRenderingContext2D, ["html|PaintRenderingContext2D", "html|_CanvasPath", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.PaintRenderingContext2D, () => dart.global.Object.setPrototypeOf({
    [S$.$beginPath]: T$.VoidTovoid(),
    [S$.$clearRect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$clip]: T$4.dynamicAndStringNTovoid(),
    [S$.$createLinearGradient]: T$4.numAndnumAndnum__ToCanvasGradient(),
    [S$.$createPattern]: T.dynamicAndStringToCanvasPatternN(),
    [S$.$createRadialGradient]: T$4.numAndnumAndnum__ToCanvasGradient$1(),
    [S$.$drawImage]: T.dynamicAndnumAndnum__Tovoid(),
    [S$.$fill]: T$4.dynamicAndStringNTovoid(),
    [S$.$fillRect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$getLineDash]: T$4.VoidToListOfnum(),
    [S$.$isPointInPath]: T$4.dynamicAndnumAnddynamic__Tobool(),
    [S$.$isPointInStroke]: T$4.dynamicAndnumAndnumNTobool(),
    [S$.$resetTransform]: T$.VoidTovoid(),
    [S$.$restore]: T$.VoidTovoid(),
    [S$.$rotate]: T$2.numTovoid(),
    [S$.$save]: T$.VoidTovoid(),
    [S$.$scale]: T$4.numAndnumTovoid(),
    [S$.$setLineDash]: T$4.ListOfnumTovoid(),
    [S$.$setTransform]: T$4.numAndnumAndnum__Tovoid$1(),
    [S$.$stroke]: T$4.Path2DNTovoid(),
    [S$.$strokeRect]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$transform]: T$4.numAndnumAndnum__Tovoid$1(),
    [S.$translate]: T$4.numAndnumTovoid(),
    [S$.$arc]: T$4.numAndnumAndnum__Tovoid$2(),
    [S$.$arcTo]: T$4.numAndnumAndnum__Tovoid$3(),
    [S$.$bezierCurveTo]: T$4.numAndnumAndnum__Tovoid$1(),
    [S$.$closePath]: T$.VoidTovoid(),
    [S$.$ellipse]: T$4.numAndnumAndnum__Tovoid$4(),
    [S$.$lineTo]: T$4.numAndnumTovoid(),
    [S$.$moveTo]: T$4.numAndnumTovoid(),
    [S$.$quadraticCurveTo]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$rect]: T$4.numAndnumAndnum__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PaintRenderingContext2D))));
  dart.setStaticMethodSignature(html$.PaintRenderingContext2D, () => ['__']);
  dart.setGetterSignature(html$.PaintRenderingContext2D, () => dart.global.Object.setPrototypeOf({
    [S$.$currentTransform]: T$4.MatrixN(),
    [S$.$fillStyle]: T$.ObjectN(),
    [S$.$filter]: T$.StringN(),
    [S$.$globalAlpha]: T$3.numN(),
    [S$.$globalCompositeOperation]: T$.StringN(),
    [S$.$imageSmoothingEnabled]: T$.boolN(),
    [S$.$imageSmoothingQuality]: T$.StringN(),
    [S$.$lineCap]: T$.StringN(),
    [S$.$lineDashOffset]: T$3.numN(),
    [S$.$lineJoin]: T$.StringN(),
    [S$.$lineWidth]: T$3.numN(),
    [S$.$miterLimit]: T$3.numN(),
    [S$.$shadowBlur]: T$3.numN(),
    [S$.$shadowColor]: T$.StringN(),
    [S$.$shadowOffsetX]: T$3.numN(),
    [S$.$shadowOffsetY]: T$3.numN(),
    [S$.$strokeStyle]: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PaintRenderingContext2D))));
  dart.setSetterSignature(html$.PaintRenderingContext2D, () => dart.global.Object.setPrototypeOf({
    [S$.$currentTransform]: T$4.MatrixN(),
    [S$.$fillStyle]: T$.ObjectN(),
    [S$.$filter]: T$.StringN(),
    [S$.$globalAlpha]: T$3.numN(),
    [S$.$globalCompositeOperation]: T$.StringN(),
    [S$.$imageSmoothingEnabled]: T$.boolN(),
    [S$.$imageSmoothingQuality]: T$.StringN(),
    [S$.$lineCap]: T$.StringN(),
    [S$.$lineDashOffset]: T$3.numN(),
    [S$.$lineJoin]: T$.StringN(),
    [S$.$lineWidth]: T$3.numN(),
    [S$.$miterLimit]: T$3.numN(),
    [S$.$shadowBlur]: T$3.numN(),
    [S$.$shadowColor]: T$.StringN(),
    [S$.$shadowOffsetX]: T$3.numN(),
    [S$.$shadowOffsetY]: T$3.numN(),
    [S$.$strokeStyle]: T$.ObjectN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.PaintRenderingContext2D))));
  dart.setLibraryUri(html$.PaintRenderingContext2D, I[167]);
  dart.registerExtension("PaintRenderingContext2D", html$.PaintRenderingContext2D);
  html$.PaintSize = class PaintSize extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PaintSize.__();
    }
    get [$height]() {
      return this.height;
    }
    get [$width]() {
      return this.width;
    }
  };
  dart.addRtiResources(html$.PaintSize, ["html|PaintSize"]);
  dart.setStaticMethodSignature(html$.PaintSize, () => ['__']);
  dart.setGetterSignature(html$.PaintSize, () => dart.global.Object.setPrototypeOf({
    [$height]: T$3.numN(),
    [$width]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PaintSize))));
  dart.setLibraryUri(html$.PaintSize, I[167]);
  dart.registerExtension("PaintSize", html$.PaintSize);
  html$.PaintWorkletGlobalScope = class PaintWorkletGlobalScope extends html$.WorkletGlobalScope {
    static ['_#_#tearOff']() {
      return html$.PaintWorkletGlobalScope.__();
    }
    get [S$2.$devicePixelRatio]() {
      return this.devicePixelRatio;
    }
    [S$2.$registerPaint](...args) {
      return this.registerPaint.apply(this, args);
    }
  };
  dart.addRtiResources(html$.PaintWorkletGlobalScope, ["html|PaintWorkletGlobalScope"]);
  dart.setMethodSignature(html$.PaintWorkletGlobalScope, () => dart.global.Object.setPrototypeOf({[S$2.$registerPaint]: T$3.StringAndObjectTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PaintWorkletGlobalScope))));
  dart.setStaticMethodSignature(html$.PaintWorkletGlobalScope, () => ['__']);
  dart.setGetterSignature(html$.PaintWorkletGlobalScope, () => dart.global.Object.setPrototypeOf({[S$2.$devicePixelRatio]: T$3.numN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PaintWorkletGlobalScope))));
  dart.setLibraryUri(html$.PaintWorkletGlobalScope, I[167]);
  dart.registerExtension("PaintWorkletGlobalScope", html$.PaintWorkletGlobalScope);
  html$.ParagraphElement = class ParagraphElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ParagraphElement.__();
    }
    static new() {
      return html$.document.createElement("p");
    }
    static ['_#new#tearOff']() {
      return html$.ParagraphElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.ParagraphElement.created();
    }
  };
  (html$.ParagraphElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ParagraphElement).created.call(this);
    ;
  }).prototype = html$.ParagraphElement.prototype;
  dart.addRtiResources(html$.ParagraphElement, ["html|ParagraphElement"]);
  dart.setStaticMethodSignature(html$.ParagraphElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.ParagraphElement, I[167]);
  dart.registerExtension("HTMLParagraphElement", html$.ParagraphElement);
  html$.ParamElement = class ParamElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ParamElement.__();
    }
    static new() {
      return html$.document.createElement("param");
    }
    static ['_#new#tearOff']() {
      return html$.ParamElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.ParamElement.created();
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  (html$.ParamElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ParamElement).created.call(this);
    ;
  }).prototype = html$.ParamElement.prototype;
  dart.addRtiResources(html$.ParamElement, ["html|ParamElement"]);
  dart.setStaticMethodSignature(html$.ParamElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.ParamElement, () => dart.global.Object.setPrototypeOf({
    [$name]: T$.String(),
    [S.$value]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ParamElement))));
  dart.setSetterSignature(html$.ParamElement, () => dart.global.Object.setPrototypeOf({
    [$name]: T$.String(),
    [S.$value]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.ParamElement))));
  dart.setLibraryUri(html$.ParamElement, I[167]);
  dart.registerExtension("HTMLParamElement", html$.ParamElement);
  html$.ParentNode = class ParentNode extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ParentNode.__();
    }
    get [S._childElementCount]() {
      return this._childElementCount;
    }
    get [S._children]() {
      return this._children;
    }
    get [S._firstElementChild]() {
      return this._firstElementChild;
    }
    get [S._lastElementChild]() {
      return this._lastElementChild;
    }
  };
  dart.addRtiResources(html$.ParentNode, ["html|ParentNode"]);
  dart.setStaticMethodSignature(html$.ParentNode, () => ['__']);
  dart.setGetterSignature(html$.ParentNode, () => dart.global.Object.setPrototypeOf({
    [S._childElementCount]: T$.int(),
    [S._children]: T$4.ListNOfNode(),
    [S._firstElementChild]: T$3.ElementN(),
    [S._lastElementChild]: T$3.ElementN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ParentNode))));
  dart.setLibraryUri(html$.ParentNode, I[167]);
  html$.PasswordCredential = class PasswordCredential$ extends html$.Credential {
    static ['_#_#tearOff']() {
      return html$.PasswordCredential.__();
    }
    static new(data_OR_form) {
      if (T$.Map()[_is](data_OR_form)) {
        let data_1 = html_common.convertDartToNative_Dictionary(data_OR_form);
        return html$.PasswordCredential._create_1(data_1);
      }
      if (T.FormElement()[_is](data_OR_form)) {
        return html$.PasswordCredential._create_2(data_OR_form);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](data_OR_form) {
      return html$.PasswordCredential.new(data_OR_form);
    }
    static _create_1(data_OR_form) {
      return new PasswordCredential(data_OR_form);
    }
    static _create_2(data_OR_form) {
      return new PasswordCredential(data_OR_form);
    }
    get [S$2.$additionalData]() {
      return this.additionalData;
    }
    set [S$2.$additionalData](value) {
      this.additionalData = value;
    }
    get [S$2.$idName]() {
      return this.idName;
    }
    set [S$2.$idName](value) {
      this.idName = value;
    }
    get [S$.$password]() {
      return this.password;
    }
    get [S$2.$passwordName]() {
      return this.passwordName;
    }
    set [S$2.$passwordName](value) {
      this.passwordName = value;
    }
    get [S$.$iconUrl]() {
      return this.iconURL;
    }
    get [$name]() {
      return this.name;
    }
  };
  dart.addRtiResources(html$.PasswordCredential, ["html|PasswordCredential", "html|CredentialUserData", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.PasswordCredential, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.PasswordCredential, () => dart.global.Object.setPrototypeOf({
    [S$2.$additionalData]: T$.ObjectN(),
    [S$2.$idName]: T$.StringN(),
    [S$.$password]: T$.StringN(),
    [S$2.$passwordName]: T$.StringN(),
    [S$.$iconUrl]: T$.StringN(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PasswordCredential))));
  dart.setSetterSignature(html$.PasswordCredential, () => dart.global.Object.setPrototypeOf({
    [S$2.$additionalData]: T$.ObjectN(),
    [S$2.$idName]: T$.StringN(),
    [S$2.$passwordName]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.PasswordCredential))));
  dart.setLibraryUri(html$.PasswordCredential, I[167]);
  dart.registerExtension("PasswordCredential", html$.PasswordCredential);
  html$.Path2D = class Path2D$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Path2D.__();
    }
    static new(path_OR_text = null) {
      if (path_OR_text == null) {
        return html$.Path2D._create_1();
      }
      if (T.Path2D()[_is](path_OR_text)) {
        return html$.Path2D._create_2(path_OR_text);
      }
      if (typeof path_OR_text == 'string') {
        return html$.Path2D._create_3(path_OR_text);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](path_OR_text = null) {
      return html$.Path2D.new(path_OR_text);
    }
    static _create_1() {
      return new Path2D();
    }
    static _create_2(path_OR_text) {
      return new Path2D(path_OR_text);
    }
    static _create_3(path_OR_text) {
      return new Path2D(path_OR_text);
    }
    [S$2.$addPath](...args) {
      return this.addPath.apply(this, args);
    }
    [S$.$arc](...args) {
      return this.arc.apply(this, args);
    }
    [S$.$arcTo](...args) {
      return this.arcTo.apply(this, args);
    }
    [S$.$bezierCurveTo](...args) {
      return this.bezierCurveTo.apply(this, args);
    }
    [S$.$closePath](...args) {
      return this.closePath.apply(this, args);
    }
    [S$.$ellipse](...args) {
      return this.ellipse.apply(this, args);
    }
    [S$.$lineTo](...args) {
      return this.lineTo.apply(this, args);
    }
    [S$.$moveTo](...args) {
      return this.moveTo.apply(this, args);
    }
    [S$.$quadraticCurveTo](...args) {
      return this.quadraticCurveTo.apply(this, args);
    }
    [S$.$rect](...args) {
      return this.rect.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Path2D, ["html|Path2D", "html|_CanvasPath", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.Path2D, () => dart.global.Object.setPrototypeOf({
    [S$2.$addPath]: T.Path2DAndMatrixNTovoid(),
    [S$.$arc]: T$4.numAndnumAndnum__Tovoid$2(),
    [S$.$arcTo]: T$4.numAndnumAndnum__Tovoid$3(),
    [S$.$bezierCurveTo]: T$4.numAndnumAndnum__Tovoid$1(),
    [S$.$closePath]: T$.VoidTovoid(),
    [S$.$ellipse]: T$4.numAndnumAndnum__Tovoid$4(),
    [S$.$lineTo]: T$4.numAndnumTovoid(),
    [S$.$moveTo]: T$4.numAndnumTovoid(),
    [S$.$quadraticCurveTo]: T$4.numAndnumAndnum__Tovoid(),
    [S$.$rect]: T$4.numAndnumAndnum__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Path2D))));
  dart.setStaticMethodSignature(html$.Path2D, () => ['__', 'new', '_create_1', '_create_2', '_create_3']);
  dart.setLibraryUri(html$.Path2D, I[167]);
  dart.registerExtension("Path2D", html$.Path2D);
  html$.PaymentAddress = class PaymentAddress extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PaymentAddress.__();
    }
    get [S$2.$addressLine]() {
      return this.addressLine;
    }
    get [S$2.$city]() {
      return this.city;
    }
    get [S$2.$country]() {
      return this.country;
    }
    get [S$2.$dependentLocality]() {
      return this.dependentLocality;
    }
    get [S$2.$languageCode]() {
      return this.languageCode;
    }
    get [S$2.$organization]() {
      return this.organization;
    }
    get [S$2.$phone]() {
      return this.phone;
    }
    get [S$2.$postalCode]() {
      return this.postalCode;
    }
    get [S$2.$recipient]() {
      return this.recipient;
    }
    get [S$1.$region]() {
      return this.region;
    }
    get [S$2.$sortingCode]() {
      return this.sortingCode;
    }
  };
  dart.addRtiResources(html$.PaymentAddress, ["html|PaymentAddress"]);
  dart.setStaticMethodSignature(html$.PaymentAddress, () => ['__']);
  dart.setGetterSignature(html$.PaymentAddress, () => dart.global.Object.setPrototypeOf({
    [S$2.$addressLine]: T$.ListNOfString(),
    [S$2.$city]: T$.StringN(),
    [S$2.$country]: T$.StringN(),
    [S$2.$dependentLocality]: T$.StringN(),
    [S$2.$languageCode]: T$.StringN(),
    [S$2.$organization]: T$.StringN(),
    [S$2.$phone]: T$.StringN(),
    [S$2.$postalCode]: T$.StringN(),
    [S$2.$recipient]: T$.StringN(),
    [S$1.$region]: T$.StringN(),
    [S$2.$sortingCode]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PaymentAddress))));
  dart.setLibraryUri(html$.PaymentAddress, I[167]);
  dart.registerExtension("PaymentAddress", html$.PaymentAddress);
  html$.PaymentInstruments = class PaymentInstruments extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PaymentInstruments.__();
    }
    [$clear]() {
      return js_util.promiseToFuture(T$.dynamic(), this.clear());
    }
    [S.$delete](instrumentKey) {
      if (instrumentKey == null) dart.nullFailed(I[166], 24970, 30, "instrumentKey");
      return js_util.promiseToFuture(T$.bool(), this.delete(instrumentKey));
    }
    [S.$get](instrumentKey) {
      if (instrumentKey == null) dart.nullFailed(I[166], 24973, 44, "instrumentKey");
      return html$.promiseToFutureAsMap(this.get(instrumentKey));
    }
    [S$.$has](instrumentKey) {
      if (instrumentKey == null) dart.nullFailed(I[166], 24976, 21, "instrumentKey");
      return js_util.promiseToFuture(T$.dynamic(), this.has(instrumentKey));
    }
    [$keys]() {
      return js_util.promiseToFuture(T$.List(), this.keys());
    }
    [S$.$set](instrumentKey, details) {
      if (instrumentKey == null) dart.nullFailed(I[166], 24982, 21, "instrumentKey");
      if (details == null) dart.nullFailed(I[166], 24982, 40, "details");
      let details_dict = html_common.convertDartToNative_Dictionary(details);
      return js_util.promiseToFuture(T$.dynamic(), this.set(instrumentKey, details_dict));
    }
  };
  dart.addRtiResources(html$.PaymentInstruments, ["html|PaymentInstruments"]);
  dart.setMethodSignature(html$.PaymentInstruments, () => dart.global.Object.setPrototypeOf({
    [$clear]: T$.VoidToFuture(),
    [S.$delete]: T$2.StringToFutureOfbool(),
    [S.$get]: T.StringToFutureOfMapNOfString$dynamic(),
    [S$.$has]: T$4.StringToFuture(),
    [$keys]: T$4.VoidToFutureOfList(),
    [S$.$set]: T.StringAndMapToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PaymentInstruments))));
  dart.setStaticMethodSignature(html$.PaymentInstruments, () => ['__']);
  dart.setLibraryUri(html$.PaymentInstruments, I[167]);
  dart.registerExtension("PaymentInstruments", html$.PaymentInstruments);
  html$.PaymentManager = class PaymentManager extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PaymentManager.__();
    }
    get [S$2.$instruments]() {
      return this.instruments;
    }
    get [S$2.$userHint]() {
      return this.userHint;
    }
    set [S$2.$userHint](value) {
      this.userHint = value;
    }
  };
  dart.addRtiResources(html$.PaymentManager, ["html|PaymentManager"]);
  dart.setStaticMethodSignature(html$.PaymentManager, () => ['__']);
  dart.setGetterSignature(html$.PaymentManager, () => dart.global.Object.setPrototypeOf({
    [S$2.$instruments]: T.PaymentInstrumentsN(),
    [S$2.$userHint]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PaymentManager))));
  dart.setSetterSignature(html$.PaymentManager, () => dart.global.Object.setPrototypeOf({[S$2.$userHint]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.PaymentManager))));
  dart.setLibraryUri(html$.PaymentManager, I[167]);
  dart.registerExtension("PaymentManager", html$.PaymentManager);
  html$.PaymentRequest = class PaymentRequest$ extends html$.EventTarget {
    static new(methodData, details, options = null) {
      if (methodData == null) dart.nullFailed(I[166], 25011, 36, "methodData");
      if (details == null) dart.nullFailed(I[166], 25011, 52, "details");
      let methodData_1 = [];
      for (let i of methodData) {
        methodData_1[$add](html_common.convertDartToNative_Dictionary(i));
      }
      if (options != null) {
        let details_1 = html_common.convertDartToNative_Dictionary(details);
        let options_2 = html_common.convertDartToNative_Dictionary(options);
        return html$.PaymentRequest._create_1(methodData_1, details_1, options_2);
      }
      let details_1 = html_common.convertDartToNative_Dictionary(details);
      return html$.PaymentRequest._create_2(methodData_1, details_1);
    }
    static ['_#new#tearOff'](methodData, details, options = null) {
      if (methodData == null) dart.nullFailed(I[166], 25011, 36, "methodData");
      if (details == null) dart.nullFailed(I[166], 25011, 52, "details");
      return html$.PaymentRequest.new(methodData, details, options);
    }
    static _create_1(methodData, details, options) {
      return new PaymentRequest(methodData, details, options);
    }
    static _create_2(methodData, details) {
      return new PaymentRequest(methodData, details);
    }
    static ['_#_#tearOff']() {
      return html$.PaymentRequest.__();
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$2.$shippingAddress]() {
      return this.shippingAddress;
    }
    get [S$2.$shippingOption]() {
      return this.shippingOption;
    }
    get [S$2.$shippingType]() {
      return this.shippingType;
    }
    [S.$abort]() {
      return js_util.promiseToFuture(T$.dynamic(), this.abort());
    }
    [S$2.$canMakePayment]() {
      return js_util.promiseToFuture(T$.bool(), this.canMakePayment());
    }
    [S$0.$show]() {
      return js_util.promiseToFuture(T.PaymentResponse(), this.show());
    }
  };
  dart.addRtiResources(html$.PaymentRequest, ["html|PaymentRequest"]);
  dart.setMethodSignature(html$.PaymentRequest, () => dart.global.Object.setPrototypeOf({
    [S.$abort]: T$.VoidToFuture(),
    [S$2.$canMakePayment]: T$1.VoidToFutureOfbool(),
    [S$0.$show]: T.VoidToFutureOfPaymentResponse()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PaymentRequest))));
  dart.setStaticMethodSignature(html$.PaymentRequest, () => ['new', '_create_1', '_create_2', '__']);
  dart.setGetterSignature(html$.PaymentRequest, () => dart.global.Object.setPrototypeOf({
    [S.$id]: T$.StringN(),
    [S$2.$shippingAddress]: T.PaymentAddressN(),
    [S$2.$shippingOption]: T$.StringN(),
    [S$2.$shippingType]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PaymentRequest))));
  dart.setLibraryUri(html$.PaymentRequest, I[167]);
  dart.registerExtension("PaymentRequest", html$.PaymentRequest);
  html$.PaymentRequestEvent = class PaymentRequestEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.PaymentRequestEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 25067, 38, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 25067, 48, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.PaymentRequestEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 25067, 38, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 25067, 48, "eventInitDict");
      return html$.PaymentRequestEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new PaymentRequestEvent(type, eventInitDict);
    }
    get [S$2.$instrumentKey]() {
      return this.instrumentKey;
    }
    get [S$.$methodData]() {
      return this.methodData;
    }
    get [S$.$modifiers]() {
      return this.modifiers;
    }
    get [S$2.$paymentRequestId]() {
      return this.paymentRequestId;
    }
    get [S$.$paymentRequestOrigin]() {
      return this.paymentRequestOrigin;
    }
    get [S$.$topLevelOrigin]() {
      return this.topLevelOrigin;
    }
    get [S$2.$total]() {
      return this.total;
    }
    [S$.$openWindow](url) {
      if (url == null) dart.nullFailed(I[166], 25091, 42, "url");
      return js_util.promiseToFuture(T$4.WindowClient(), this.openWindow(url));
    }
    [S$.$respondWith](...args) {
      return this.respondWith.apply(this, args);
    }
  };
  dart.addRtiResources(html$.PaymentRequestEvent, ["html|PaymentRequestEvent"]);
  dart.setMethodSignature(html$.PaymentRequestEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$openWindow]: T$4.StringToFutureOfWindowClient(),
    [S$.$respondWith]: T$1.FutureTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PaymentRequestEvent))));
  dart.setStaticMethodSignature(html$.PaymentRequestEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.PaymentRequestEvent, () => dart.global.Object.setPrototypeOf({
    [S$2.$instrumentKey]: T$.StringN(),
    [S$.$methodData]: T$.ListN(),
    [S$.$modifiers]: T$.ListN(),
    [S$2.$paymentRequestId]: T$.StringN(),
    [S$.$paymentRequestOrigin]: T$.StringN(),
    [S$.$topLevelOrigin]: T$.StringN(),
    [S$2.$total]: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PaymentRequestEvent))));
  dart.setLibraryUri(html$.PaymentRequestEvent, I[167]);
  dart.registerExtension("PaymentRequestEvent", html$.PaymentRequestEvent);
  html$.PaymentRequestUpdateEvent = class PaymentRequestUpdateEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.PaymentRequestUpdateEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 25107, 44, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.PaymentRequestUpdateEvent._create_1(type, eventInitDict_1);
      }
      return html$.PaymentRequestUpdateEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 25107, 44, "type");
      return html$.PaymentRequestUpdateEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new PaymentRequestUpdateEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new PaymentRequestUpdateEvent(type);
    }
    [S$2.$updateWith](...args) {
      return this.updateWith.apply(this, args);
    }
  };
  dart.addRtiResources(html$.PaymentRequestUpdateEvent, ["html|PaymentRequestUpdateEvent"]);
  dart.setMethodSignature(html$.PaymentRequestUpdateEvent, () => dart.global.Object.setPrototypeOf({[S$2.$updateWith]: T$1.FutureTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PaymentRequestUpdateEvent))));
  dart.setStaticMethodSignature(html$.PaymentRequestUpdateEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.PaymentRequestUpdateEvent, I[167]);
  dart.registerExtension("PaymentRequestUpdateEvent", html$.PaymentRequestUpdateEvent);
  html$.PaymentResponse = class PaymentResponse extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PaymentResponse.__();
    }
    get [S$.$details]() {
      return this.details;
    }
    get [S$2.$methodName]() {
      return this.methodName;
    }
    get [S$2.$payerEmail]() {
      return this.payerEmail;
    }
    get [S$2.$payerName]() {
      return this.payerName;
    }
    get [S$2.$payerPhone]() {
      return this.payerPhone;
    }
    get [S$2.$requestId]() {
      return this.requestId;
    }
    get [S$2.$shippingAddress]() {
      return this.shippingAddress;
    }
    get [S$2.$shippingOption]() {
      return this.shippingOption;
    }
    [S$1.$complete](paymentResult = null) {
      return js_util.promiseToFuture(T$.dynamic(), this.complete(paymentResult));
    }
  };
  dart.addRtiResources(html$.PaymentResponse, ["html|PaymentResponse"]);
  dart.setMethodSignature(html$.PaymentResponse, () => dart.global.Object.setPrototypeOf({[S$1.$complete]: T.StringNToFuture()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PaymentResponse))));
  dart.setStaticMethodSignature(html$.PaymentResponse, () => ['__']);
  dart.setGetterSignature(html$.PaymentResponse, () => dart.global.Object.setPrototypeOf({
    [S$.$details]: T$.ObjectN(),
    [S$2.$methodName]: T$.StringN(),
    [S$2.$payerEmail]: T$.StringN(),
    [S$2.$payerName]: T$.StringN(),
    [S$2.$payerPhone]: T$.StringN(),
    [S$2.$requestId]: T$.StringN(),
    [S$2.$shippingAddress]: T.PaymentAddressN(),
    [S$2.$shippingOption]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PaymentResponse))));
  dart.setLibraryUri(html$.PaymentResponse, I[167]);
  dart.registerExtension("PaymentResponse", html$.PaymentResponse);
  html$.Performance = class Performance extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.Performance.__();
    }
    static get supported() {
      return !!window.performance;
    }
    get [S$2.$memory]() {
      return this.memory;
    }
    get [S$2.$navigation]() {
      return this.navigation;
    }
    get [S$2.$timeOrigin]() {
      return this.timeOrigin;
    }
    get [S$.$timing]() {
      return this.timing;
    }
    [S$2.$clearMarks](...args) {
      return this.clearMarks.apply(this, args);
    }
    [S$2.$clearMeasures](...args) {
      return this.clearMeasures.apply(this, args);
    }
    [S$2.$clearResourceTimings](...args) {
      return this.clearResourceTimings.apply(this, args);
    }
    [S$2.$getEntries](...args) {
      return this.getEntries.apply(this, args);
    }
    [S$2.$getEntriesByName](...args) {
      return this.getEntriesByName.apply(this, args);
    }
    [S$2.$getEntriesByType](...args) {
      return this.getEntriesByType.apply(this, args);
    }
    [S$2.$mark](markName, markOptions = null) {
      if (markName == null) dart.nullFailed(I[166], 25192, 33, "markName");
      if (markOptions != null) {
        let markOptions_1 = html_common.convertDartToNative_Dictionary(markOptions);
        return this[S$2._mark_1](markName, markOptions_1);
      }
      return this[S$2._mark_2](markName);
    }
    [S$2._mark_1](...args) {
      return this.mark.apply(this, args);
    }
    [S$2._mark_2](...args) {
      return this.mark.apply(this, args);
    }
    [S$2.$measure](measureName, measureOptions_OR_startMark = null, endMark = null) {
      if (measureName == null) dart.nullFailed(I[166], 25205, 38, "measureName");
      if (measureOptions_OR_startMark == null && endMark == null) {
        return this[S$2._measure_1](measureName);
      }
      if ((typeof measureOptions_OR_startMark == 'string' || measureOptions_OR_startMark == null) && endMark == null) {
        return this[S$2._measure_2](measureName, T$.StringN()[_as](measureOptions_OR_startMark));
      }
      if (typeof measureOptions_OR_startMark == 'string' || measureOptions_OR_startMark == null) {
        return this[S$2._measure_3](measureName, T$.StringN()[_as](measureOptions_OR_startMark), endMark);
      }
      if (T$.Map()[_is](measureOptions_OR_startMark) && endMark == null) {
        let measureOptions_1 = html_common.convertDartToNative_Dictionary(measureOptions_OR_startMark);
        return this[S$2._measure_4](measureName, measureOptions_1);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$2._measure_1](...args) {
      return this.measure.apply(this, args);
    }
    [S$2._measure_2](...args) {
      return this.measure.apply(this, args);
    }
    [S$2._measure_3](...args) {
      return this.measure.apply(this, args);
    }
    [S$2._measure_4](...args) {
      return this.measure.apply(this, args);
    }
    [S$2.$now](...args) {
      return this.now.apply(this, args);
    }
    [S$2.$setResourceTimingBufferSize](...args) {
      return this.setResourceTimingBufferSize.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Performance, ["html|Performance"]);
  dart.setMethodSignature(html$.Performance, () => dart.global.Object.setPrototypeOf({
    [S$2.$clearMarks]: T$2.StringNTovoid(),
    [S$2.$clearMeasures]: T$2.StringNTovoid(),
    [S$2.$clearResourceTimings]: T$.VoidTovoid(),
    [S$2.$getEntries]: T.VoidToListOfPerformanceEntry(),
    [S$2.$getEntriesByName]: T.StringAndStringNToListOfPerformanceEntry(),
    [S$2.$getEntriesByType]: T.StringToListOfPerformanceEntry(),
    [S$2.$mark]: T.StringAndMapNToPerformanceEntryN(),
    [S$2._mark_1]: T.dynamicAnddynamicToPerformanceEntryN(),
    [S$2._mark_2]: T.dynamicToPerformanceEntryN(),
    [S$2.$measure]: T.StringAnddynamicAndStringNToPerformanceMeasureN(),
    [S$2._measure_1]: T.dynamicToPerformanceMeasureN(),
    [S$2._measure_2]: T.dynamicAndStringNToPerformanceMeasureN(),
    [S$2._measure_3]: T.dynamicAndStringNAnddynamicToPerformanceMeasureN(),
    [S$2._measure_4]: T.dynamicAnddynamicToPerformanceMeasureN(),
    [S$2.$now]: T$.VoidTodouble(),
    [S$2.$setResourceTimingBufferSize]: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Performance))));
  dart.setStaticMethodSignature(html$.Performance, () => ['__']);
  dart.setGetterSignature(html$.Performance, () => dart.global.Object.setPrototypeOf({
    [S$2.$memory]: T.MemoryInfoN(),
    [S$2.$navigation]: T.PerformanceNavigation(),
    [S$2.$timeOrigin]: T$3.numN(),
    [S$.$timing]: T.PerformanceTiming()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Performance))));
  dart.setStaticGetterSignature(html$.Performance, () => ['supported']);
  dart.setLibraryUri(html$.Performance, I[167]);
  dart.registerExtension("Performance", html$.Performance);
  html$.PerformanceEntry = class PerformanceEntry extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PerformanceEntry.__();
    }
    get [S$.$duration]() {
      return this.duration;
    }
    get [S$2.$entryType]() {
      return this.entryType;
    }
    get [$name]() {
      return this.name;
    }
    get [S$.$startTime]() {
      return this.startTime;
    }
  };
  dart.addRtiResources(html$.PerformanceEntry, ["html|PerformanceEntry"]);
  dart.setStaticMethodSignature(html$.PerformanceEntry, () => ['__']);
  dart.setGetterSignature(html$.PerformanceEntry, () => dart.global.Object.setPrototypeOf({
    [S$.$duration]: T$.num(),
    [S$2.$entryType]: T$.String(),
    [$name]: T$.String(),
    [S$.$startTime]: T$.num()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PerformanceEntry))));
  dart.setLibraryUri(html$.PerformanceEntry, I[167]);
  dart.registerExtension("PerformanceEntry", html$.PerformanceEntry);
  html$.PerformanceLongTaskTiming = class PerformanceLongTaskTiming extends html$.PerformanceEntry {
    static ['_#_#tearOff']() {
      return html$.PerformanceLongTaskTiming.__();
    }
    get [S$2.$attribution]() {
      return this.attribution;
    }
  };
  dart.addRtiResources(html$.PerformanceLongTaskTiming, ["html|PerformanceLongTaskTiming"]);
  dart.setStaticMethodSignature(html$.PerformanceLongTaskTiming, () => ['__']);
  dart.setGetterSignature(html$.PerformanceLongTaskTiming, () => dart.global.Object.setPrototypeOf({[S$2.$attribution]: T.ListNOfTaskAttributionTiming()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PerformanceLongTaskTiming))));
  dart.setLibraryUri(html$.PerformanceLongTaskTiming, I[167]);
  dart.registerExtension("PerformanceLongTaskTiming", html$.PerformanceLongTaskTiming);
  html$.PerformanceMark = class PerformanceMark extends html$.PerformanceEntry {
    static ['_#_#tearOff']() {
      return html$.PerformanceMark.__();
    }
  };
  dart.addRtiResources(html$.PerformanceMark, ["html|PerformanceMark"]);
  dart.setStaticMethodSignature(html$.PerformanceMark, () => ['__']);
  dart.setLibraryUri(html$.PerformanceMark, I[167]);
  dart.registerExtension("PerformanceMark", html$.PerformanceMark);
  html$.PerformanceMeasure = class PerformanceMeasure extends html$.PerformanceEntry {
    static ['_#_#tearOff']() {
      return html$.PerformanceMeasure.__();
    }
  };
  dart.addRtiResources(html$.PerformanceMeasure, ["html|PerformanceMeasure"]);
  dart.setStaticMethodSignature(html$.PerformanceMeasure, () => ['__']);
  dart.setLibraryUri(html$.PerformanceMeasure, I[167]);
  dart.registerExtension("PerformanceMeasure", html$.PerformanceMeasure);
  html$.PerformanceNavigation = class PerformanceNavigation extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PerformanceNavigation.__();
    }
    get [S$2.$redirectCount]() {
      return this.redirectCount;
    }
    get [S.$type]() {
      return this.type;
    }
  };
  dart.addRtiResources(html$.PerformanceNavigation, ["html|PerformanceNavigation"]);
  dart.setStaticMethodSignature(html$.PerformanceNavigation, () => ['__']);
  dart.setGetterSignature(html$.PerformanceNavigation, () => dart.global.Object.setPrototypeOf({
    [S$2.$redirectCount]: T$.intN(),
    [S.$type]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PerformanceNavigation))));
  dart.setLibraryUri(html$.PerformanceNavigation, I[167]);
  dart.setStaticFieldSignature(html$.PerformanceNavigation, () => ['TYPE_BACK_FORWARD', 'TYPE_NAVIGATE', 'TYPE_RELOAD', 'TYPE_RESERVED']);
  dart.defineLazy(html$.PerformanceNavigation, {
    /*html$.PerformanceNavigation.TYPE_BACK_FORWARD*/get TYPE_BACK_FORWARD() {
      return 2;
    },
    /*html$.PerformanceNavigation.TYPE_NAVIGATE*/get TYPE_NAVIGATE() {
      return 0;
    },
    /*html$.PerformanceNavigation.TYPE_RELOAD*/get TYPE_RELOAD() {
      return 1;
    },
    /*html$.PerformanceNavigation.TYPE_RESERVED*/get TYPE_RESERVED() {
      return 255;
    }
  }, false);
  dart.registerExtension("PerformanceNavigation", html$.PerformanceNavigation);
  html$.PerformanceResourceTiming = class PerformanceResourceTiming extends html$.PerformanceEntry {
    static ['_#_#tearOff']() {
      return html$.PerformanceResourceTiming.__();
    }
    get [S$2.$connectEnd]() {
      return this.connectEnd;
    }
    get [S$2.$connectStart]() {
      return this.connectStart;
    }
    get [S$2.$decodedBodySize]() {
      return this.decodedBodySize;
    }
    get [S$2.$domainLookupEnd]() {
      return this.domainLookupEnd;
    }
    get [S$2.$domainLookupStart]() {
      return this.domainLookupStart;
    }
    get [S$2.$encodedBodySize]() {
      return this.encodedBodySize;
    }
    get [S$2.$fetchStart]() {
      return this.fetchStart;
    }
    get [S$2.$initiatorType]() {
      return this.initiatorType;
    }
    get [S$2.$nextHopProtocol]() {
      return this.nextHopProtocol;
    }
    get [S$2.$redirectEnd]() {
      return this.redirectEnd;
    }
    get [S$2.$redirectStart]() {
      return this.redirectStart;
    }
    get [S$2.$requestStart]() {
      return this.requestStart;
    }
    get [S$2.$responseEnd]() {
      return this.responseEnd;
    }
    get [S$2.$responseStart]() {
      return this.responseStart;
    }
    get [S$2.$secureConnectionStart]() {
      return this.secureConnectionStart;
    }
    get [S$2.$serverTiming]() {
      return this.serverTiming;
    }
    get [S$2.$transferSize]() {
      return this.transferSize;
    }
    get [S$2.$workerStart]() {
      return this.workerStart;
    }
  };
  dart.addRtiResources(html$.PerformanceResourceTiming, ["html|PerformanceResourceTiming"]);
  dart.setStaticMethodSignature(html$.PerformanceResourceTiming, () => ['__']);
  dart.setGetterSignature(html$.PerformanceResourceTiming, () => dart.global.Object.setPrototypeOf({
    [S$2.$connectEnd]: T$.num(),
    [S$2.$connectStart]: T$.num(),
    [S$2.$decodedBodySize]: T$.intN(),
    [S$2.$domainLookupEnd]: T$3.numN(),
    [S$2.$domainLookupStart]: T$3.numN(),
    [S$2.$encodedBodySize]: T$.intN(),
    [S$2.$fetchStart]: T$3.numN(),
    [S$2.$initiatorType]: T$.StringN(),
    [S$2.$nextHopProtocol]: T$.StringN(),
    [S$2.$redirectEnd]: T$3.numN(),
    [S$2.$redirectStart]: T$3.numN(),
    [S$2.$requestStart]: T$3.numN(),
    [S$2.$responseEnd]: T$3.numN(),
    [S$2.$responseStart]: T$3.numN(),
    [S$2.$secureConnectionStart]: T$3.numN(),
    [S$2.$serverTiming]: T.ListNOfPerformanceServerTiming(),
    [S$2.$transferSize]: T$.intN(),
    [S$2.$workerStart]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PerformanceResourceTiming))));
  dart.setLibraryUri(html$.PerformanceResourceTiming, I[167]);
  dart.registerExtension("PerformanceResourceTiming", html$.PerformanceResourceTiming);
  html$.PerformanceNavigationTiming = class PerformanceNavigationTiming extends html$.PerformanceResourceTiming {
    static ['_#_#tearOff']() {
      return html$.PerformanceNavigationTiming.__();
    }
    get [S$2.$domComplete]() {
      return this.domComplete;
    }
    get [S$2.$domContentLoadedEventEnd]() {
      return this.domContentLoadedEventEnd;
    }
    get [S$2.$domContentLoadedEventStart]() {
      return this.domContentLoadedEventStart;
    }
    get [S$2.$domInteractive]() {
      return this.domInteractive;
    }
    get [S$2.$loadEventEnd]() {
      return this.loadEventEnd;
    }
    get [S$2.$loadEventStart]() {
      return this.loadEventStart;
    }
    get [S$2.$redirectCount]() {
      return this.redirectCount;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S$2.$unloadEventEnd]() {
      return this.unloadEventEnd;
    }
    get [S$2.$unloadEventStart]() {
      return this.unloadEventStart;
    }
  };
  dart.addRtiResources(html$.PerformanceNavigationTiming, ["html|PerformanceNavigationTiming"]);
  dart.setStaticMethodSignature(html$.PerformanceNavigationTiming, () => ['__']);
  dart.setGetterSignature(html$.PerformanceNavigationTiming, () => dart.global.Object.setPrototypeOf({
    [S$2.$domComplete]: T$3.numN(),
    [S$2.$domContentLoadedEventEnd]: T$3.numN(),
    [S$2.$domContentLoadedEventStart]: T$3.numN(),
    [S$2.$domInteractive]: T$3.numN(),
    [S$2.$loadEventEnd]: T$3.numN(),
    [S$2.$loadEventStart]: T$3.numN(),
    [S$2.$redirectCount]: T$.intN(),
    [S.$type]: T$.StringN(),
    [S$2.$unloadEventEnd]: T$3.numN(),
    [S$2.$unloadEventStart]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PerformanceNavigationTiming))));
  dart.setLibraryUri(html$.PerformanceNavigationTiming, I[167]);
  dart.registerExtension("PerformanceNavigationTiming", html$.PerformanceNavigationTiming);
  html$.PerformanceObserver = class PerformanceObserver$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PerformanceObserver.__();
    }
    static new(callback) {
      if (callback == null) dart.nullFailed(I[166], 25361, 59, "callback");
      let callback_1 = _js_helper.convertDartClosureToJS(T.PerformanceObserverEntryListAndPerformanceObserverTovoid(), callback, 2);
      return html$.PerformanceObserver._create_1(callback_1);
    }
    static ['_#new#tearOff'](callback) {
      if (callback == null) dart.nullFailed(I[166], 25361, 59, "callback");
      return html$.PerformanceObserver.new(callback);
    }
    static _create_1(callback) {
      return new PerformanceObserver(callback);
    }
    [S$1.$disconnect](...args) {
      return this.disconnect.apply(this, args);
    }
    [S.$observe](options) {
      if (options == null) dart.nullFailed(I[166], 25370, 20, "options");
      let options_1 = html_common.convertDartToNative_Dictionary(options);
      this[S$1._observe_1$1](options_1);
      return;
    }
    [S$1._observe_1$1](...args) {
      return this.observe.apply(this, args);
    }
  };
  dart.addRtiResources(html$.PerformanceObserver, ["html|PerformanceObserver"]);
  dart.setMethodSignature(html$.PerformanceObserver, () => dart.global.Object.setPrototypeOf({
    [S$1.$disconnect]: T$.VoidTovoid(),
    [S.$observe]: T$2.MapTovoid(),
    [S$1._observe_1$1]: T$.dynamicTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PerformanceObserver))));
  dart.setStaticMethodSignature(html$.PerformanceObserver, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$.PerformanceObserver, I[167]);
  dart.registerExtension("PerformanceObserver", html$.PerformanceObserver);
  html$.PerformanceObserverEntryList = class PerformanceObserverEntryList extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PerformanceObserverEntryList.__();
    }
    [S$2.$getEntries](...args) {
      return this.getEntries.apply(this, args);
    }
    [S$2.$getEntriesByName](...args) {
      return this.getEntriesByName.apply(this, args);
    }
    [S$2.$getEntriesByType](...args) {
      return this.getEntriesByType.apply(this, args);
    }
  };
  dart.addRtiResources(html$.PerformanceObserverEntryList, ["html|PerformanceObserverEntryList"]);
  dart.setMethodSignature(html$.PerformanceObserverEntryList, () => dart.global.Object.setPrototypeOf({
    [S$2.$getEntries]: T.VoidToListOfPerformanceEntry(),
    [S$2.$getEntriesByName]: T.StringAndStringNToListOfPerformanceEntry(),
    [S$2.$getEntriesByType]: T.StringToListOfPerformanceEntry()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PerformanceObserverEntryList))));
  dart.setStaticMethodSignature(html$.PerformanceObserverEntryList, () => ['__']);
  dart.setLibraryUri(html$.PerformanceObserverEntryList, I[167]);
  dart.registerExtension("PerformanceObserverEntryList", html$.PerformanceObserverEntryList);
  html$.PerformancePaintTiming = class PerformancePaintTiming extends html$.PerformanceEntry {
    static ['_#_#tearOff']() {
      return html$.PerformancePaintTiming.__();
    }
  };
  dart.addRtiResources(html$.PerformancePaintTiming, ["html|PerformancePaintTiming"]);
  dart.setStaticMethodSignature(html$.PerformancePaintTiming, () => ['__']);
  dart.setLibraryUri(html$.PerformancePaintTiming, I[167]);
  dart.registerExtension("PerformancePaintTiming", html$.PerformancePaintTiming);
  html$.PerformanceServerTiming = class PerformanceServerTiming extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PerformanceServerTiming.__();
    }
    get [S$1.$description]() {
      return this.description;
    }
    get [S$.$duration]() {
      return this.duration;
    }
    get [$name]() {
      return this.name;
    }
  };
  dart.addRtiResources(html$.PerformanceServerTiming, ["html|PerformanceServerTiming"]);
  dart.setStaticMethodSignature(html$.PerformanceServerTiming, () => ['__']);
  dart.setGetterSignature(html$.PerformanceServerTiming, () => dart.global.Object.setPrototypeOf({
    [S$1.$description]: T$.StringN(),
    [S$.$duration]: T$3.numN(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PerformanceServerTiming))));
  dart.setLibraryUri(html$.PerformanceServerTiming, I[167]);
  dart.registerExtension("PerformanceServerTiming", html$.PerformanceServerTiming);
  html$.PerformanceTiming = class PerformanceTiming extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PerformanceTiming.__();
    }
    get [S$2.$connectEnd]() {
      return this.connectEnd;
    }
    get [S$2.$connectStart]() {
      return this.connectStart;
    }
    get [S$2.$domComplete]() {
      return this.domComplete;
    }
    get [S$2.$domContentLoadedEventEnd]() {
      return this.domContentLoadedEventEnd;
    }
    get [S$2.$domContentLoadedEventStart]() {
      return this.domContentLoadedEventStart;
    }
    get [S$2.$domInteractive]() {
      return this.domInteractive;
    }
    get [S$2.$domLoading]() {
      return this.domLoading;
    }
    get [S$2.$domainLookupEnd]() {
      return this.domainLookupEnd;
    }
    get [S$2.$domainLookupStart]() {
      return this.domainLookupStart;
    }
    get [S$2.$fetchStart]() {
      return this.fetchStart;
    }
    get [S$2.$loadEventEnd]() {
      return this.loadEventEnd;
    }
    get [S$2.$loadEventStart]() {
      return this.loadEventStart;
    }
    get [S$2.$navigationStart]() {
      return this.navigationStart;
    }
    get [S$2.$redirectEnd]() {
      return this.redirectEnd;
    }
    get [S$2.$redirectStart]() {
      return this.redirectStart;
    }
    get [S$2.$requestStart]() {
      return this.requestStart;
    }
    get [S$2.$responseEnd]() {
      return this.responseEnd;
    }
    get [S$2.$responseStart]() {
      return this.responseStart;
    }
    get [S$2.$secureConnectionStart]() {
      return this.secureConnectionStart;
    }
    get [S$2.$unloadEventEnd]() {
      return this.unloadEventEnd;
    }
    get [S$2.$unloadEventStart]() {
      return this.unloadEventStart;
    }
  };
  dart.addRtiResources(html$.PerformanceTiming, ["html|PerformanceTiming"]);
  dart.setStaticMethodSignature(html$.PerformanceTiming, () => ['__']);
  dart.setGetterSignature(html$.PerformanceTiming, () => dart.global.Object.setPrototypeOf({
    [S$2.$connectEnd]: T$.int(),
    [S$2.$connectStart]: T$.int(),
    [S$2.$domComplete]: T$.int(),
    [S$2.$domContentLoadedEventEnd]: T$.int(),
    [S$2.$domContentLoadedEventStart]: T$.int(),
    [S$2.$domInteractive]: T$.int(),
    [S$2.$domLoading]: T$.int(),
    [S$2.$domainLookupEnd]: T$.int(),
    [S$2.$domainLookupStart]: T$.int(),
    [S$2.$fetchStart]: T$.int(),
    [S$2.$loadEventEnd]: T$.int(),
    [S$2.$loadEventStart]: T$.int(),
    [S$2.$navigationStart]: T$.int(),
    [S$2.$redirectEnd]: T$.int(),
    [S$2.$redirectStart]: T$.int(),
    [S$2.$requestStart]: T$.int(),
    [S$2.$responseEnd]: T$.int(),
    [S$2.$responseStart]: T$.int(),
    [S$2.$secureConnectionStart]: T$.int(),
    [S$2.$unloadEventEnd]: T$.int(),
    [S$2.$unloadEventStart]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PerformanceTiming))));
  dart.setLibraryUri(html$.PerformanceTiming, I[167]);
  dart.registerExtension("PerformanceTiming", html$.PerformanceTiming);
  html$.PermissionStatus = class PermissionStatus extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.PermissionStatus.__();
    }
    get [S$.$state]() {
      return this.state;
    }
    get [S.$onChange]() {
      return html$.PermissionStatus.changeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.PermissionStatus, ["html|PermissionStatus"]);
  dart.setStaticMethodSignature(html$.PermissionStatus, () => ['__']);
  dart.setGetterSignature(html$.PermissionStatus, () => dart.global.Object.setPrototypeOf({
    [S$.$state]: T$.StringN(),
    [S.$onChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PermissionStatus))));
  dart.setLibraryUri(html$.PermissionStatus, I[167]);
  dart.setStaticFieldSignature(html$.PermissionStatus, () => ['changeEvent']);
  dart.defineLazy(html$.PermissionStatus, {
    /*html$.PermissionStatus.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    }
  }, false);
  dart.registerExtension("PermissionStatus", html$.PermissionStatus);
  html$.Permissions = class Permissions extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Permissions.__();
    }
    [S$2.$query](permission) {
      if (permission == null) dart.nullFailed(I[166], 25563, 38, "permission");
      let permission_dict = html_common.convertDartToNative_Dictionary(permission);
      return js_util.promiseToFuture(T.PermissionStatus(), this.query(permission_dict));
    }
    [S$.$request](permissions) {
      if (permissions == null) dart.nullFailed(I[166], 25569, 40, "permissions");
      let permissions_dict = html_common.convertDartToNative_Dictionary(permissions);
      return js_util.promiseToFuture(T.PermissionStatus(), this.request(permissions_dict));
    }
    [S$2.$requestAll](permissions) {
      if (permissions == null) dart.nullFailed(I[166], 25575, 49, "permissions");
      return js_util.promiseToFuture(T.PermissionStatus(), this.requestAll(permissions));
    }
    [S$2.$revoke](permission) {
      if (permission == null) dart.nullFailed(I[166], 25579, 39, "permission");
      let permission_dict = html_common.convertDartToNative_Dictionary(permission);
      return js_util.promiseToFuture(T.PermissionStatus(), this.revoke(permission_dict));
    }
  };
  dart.addRtiResources(html$.Permissions, ["html|Permissions"]);
  dart.setMethodSignature(html$.Permissions, () => dart.global.Object.setPrototypeOf({
    [S$2.$query]: T.MapToFutureOfPermissionStatus(),
    [S$.$request]: T.MapToFutureOfPermissionStatus(),
    [S$2.$requestAll]: T.ListOfMapToFutureOfPermissionStatus(),
    [S$2.$revoke]: T.MapToFutureOfPermissionStatus()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Permissions))));
  dart.setStaticMethodSignature(html$.Permissions, () => ['__']);
  dart.setLibraryUri(html$.Permissions, I[167]);
  dart.registerExtension("Permissions", html$.Permissions);
  html$.PhotoCapabilities = class PhotoCapabilities extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PhotoCapabilities.__();
    }
    get [S$2.$fillLightMode]() {
      return this.fillLightMode;
    }
    get [S$2.$imageHeight]() {
      return this.imageHeight;
    }
    get [S$2.$imageWidth]() {
      return this.imageWidth;
    }
    get [S$2.$redEyeReduction]() {
      return this.redEyeReduction;
    }
  };
  dart.addRtiResources(html$.PhotoCapabilities, ["html|PhotoCapabilities"]);
  dart.setStaticMethodSignature(html$.PhotoCapabilities, () => ['__']);
  dart.setGetterSignature(html$.PhotoCapabilities, () => dart.global.Object.setPrototypeOf({
    [S$2.$fillLightMode]: T$.ListN(),
    [S$2.$imageHeight]: T.MediaSettingsRangeN(),
    [S$2.$imageWidth]: T.MediaSettingsRangeN(),
    [S$2.$redEyeReduction]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PhotoCapabilities))));
  dart.setLibraryUri(html$.PhotoCapabilities, I[167]);
  dart.registerExtension("PhotoCapabilities", html$.PhotoCapabilities);
  html$.PictureElement = class PictureElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.PictureElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.PictureElement.created();
    }
  };
  (html$.PictureElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.PictureElement).created.call(this);
    ;
  }).prototype = html$.PictureElement.prototype;
  dart.addRtiResources(html$.PictureElement, ["html|PictureElement"]);
  dart.setStaticMethodSignature(html$.PictureElement, () => ['__']);
  dart.setLibraryUri(html$.PictureElement, I[167]);
  dart.registerExtension("HTMLPictureElement", html$.PictureElement);
  html$.Plugin = class Plugin extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Plugin.__();
    }
    get [S$1.$description]() {
      return this.description;
    }
    get [S$1.$filename]() {
      return this.filename;
    }
    get [$length]() {
      return this.length;
    }
    get [$name]() {
      return this.name;
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [S$1.$namedItem](...args) {
      return this.namedItem.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Plugin, ["html|Plugin"]);
  dart.setMethodSignature(html$.Plugin, () => dart.global.Object.setPrototypeOf({
    [S$.$item]: T.intToMimeTypeN(),
    [S$1.$namedItem]: T.StringToMimeTypeN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Plugin))));
  dart.setStaticMethodSignature(html$.Plugin, () => ['__']);
  dart.setGetterSignature(html$.Plugin, () => dart.global.Object.setPrototypeOf({
    [S$1.$description]: T$.StringN(),
    [S$1.$filename]: T$.StringN(),
    [$length]: T$.intN(),
    [$name]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Plugin))));
  dart.setLibraryUri(html$.Plugin, I[167]);
  dart.registerExtension("Plugin", html$.Plugin);
  const JavaScriptObject_ListBase$36$4 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$4.new = function() {
    G$.ListBaseOfPlugin().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$4).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$4.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$4, G$.ListBaseOfPlugin());
  const JavaScriptObject_ImmutableListMixin$36$4 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$4 {};
  (JavaScriptObject_ImmutableListMixin$36$4.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$4).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$4.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$4, G$.ImmutableListMixinOfPlugin());
  html$.PluginArray = class PluginArray extends JavaScriptObject_ImmutableListMixin$36$4 {
    static ['_#_#tearOff']() {
      return html$.PluginArray.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 25659, 26, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 25665, 25, "index");
      T.Plugin()[_as](value);
      if (value == null) dart.nullFailed(I[166], 25665, 39, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 25671, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 25699, 24, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [S$1.$namedItem](...args) {
      return this.namedItem.apply(this, args);
    }
    [S$2.$refresh](...args) {
      return this.refresh.apply(this, args);
    }
  };
  dart.addRtiResources(html$.PluginArray, ["html|PluginArray", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.PluginArray, () => dart.global.Object.setPrototypeOf({
    [$_get]: T.intToPlugin(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T.intToPluginN(),
    [S$1.$namedItem]: T.StringToPluginN(),
    [S$2.$refresh]: T.boolNTovoid$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PluginArray))));
  dart.setStaticMethodSignature(html$.PluginArray, () => ['__']);
  dart.setGetterSignature(html$.PluginArray, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PluginArray))));
  dart.setSetterSignature(html$.PluginArray, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.PluginArray))));
  dart.setLibraryUri(html$.PluginArray, I[167]);
  dart.registerExtension("PluginArray", html$.PluginArray);
  html$.PointerEvent = class PointerEvent$ extends html$.MouseEvent {
    static ['_#_#tearOff']() {
      return html$.PointerEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 25721, 31, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.PointerEvent._create_1(type, eventInitDict_1);
      }
      return html$.PointerEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 25721, 31, "type");
      return html$.PointerEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new PointerEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new PointerEvent(type);
    }
    get [$height]() {
      return this.height;
    }
    get [S$2.$isPrimary]() {
      return this.isPrimary;
    }
    get [S$2.$pointerId]() {
      return this.pointerId;
    }
    get [S$2.$pointerType]() {
      return this.pointerType;
    }
    get [S$2.$pressure]() {
      return this.pressure;
    }
    get [S$2.$tangentialPressure]() {
      return this.tangentialPressure;
    }
    get [S$2.$tiltX]() {
      return this.tiltX;
    }
    get [S$2.$tiltY]() {
      return this.tiltY;
    }
    get [S$2.$twist]() {
      return this.twist;
    }
    get [$width]() {
      return this.width;
    }
    [S$2.$getCoalescedEvents](...args) {
      return this.getCoalescedEvents.apply(this, args);
    }
    static get supported() {
      try {
        return T.PointerEvent()[_is](html$.PointerEvent.new("pointerover"));
      } catch (t$36$35e) {
        let _ = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](_)) {
        } else
          throw t$36$35e;
      }
      return false;
    }
  };
  dart.addRtiResources(html$.PointerEvent, ["html|PointerEvent"]);
  dart.setMethodSignature(html$.PointerEvent, () => dart.global.Object.setPrototypeOf({[S$2.$getCoalescedEvents]: T.VoidToListOfPointerEvent()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PointerEvent))));
  dart.setStaticMethodSignature(html$.PointerEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.PointerEvent, () => dart.global.Object.setPrototypeOf({
    [$height]: T$3.numN(),
    [S$2.$isPrimary]: T$.boolN(),
    [S$2.$pointerId]: T$.intN(),
    [S$2.$pointerType]: T$.StringN(),
    [S$2.$pressure]: T$3.numN(),
    [S$2.$tangentialPressure]: T$3.numN(),
    [S$2.$tiltX]: T$.intN(),
    [S$2.$tiltY]: T$.intN(),
    [S$2.$twist]: T$.intN(),
    [$width]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PointerEvent))));
  dart.setStaticGetterSignature(html$.PointerEvent, () => ['supported']);
  dart.setLibraryUri(html$.PointerEvent, I[167]);
  dart.registerExtension("PointerEvent", html$.PointerEvent);
  html$.PopStateEvent = class PopStateEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.PopStateEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 25781, 32, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.PopStateEvent._create_1(type, eventInitDict_1);
      }
      return html$.PopStateEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 25781, 32, "type");
      return html$.PopStateEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new PopStateEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new PopStateEvent(type);
    }
    get [S$.$state]() {
      return html_common.convertNativeToDart_SerializedScriptValue(this[S$1._get_state]);
    }
    get [S$1._get_state]() {
      return this.state;
    }
  };
  dart.addRtiResources(html$.PopStateEvent, ["html|PopStateEvent"]);
  dart.setStaticMethodSignature(html$.PopStateEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.PopStateEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$state]: T$.dynamic(),
    [S$1._get_state]: T$.dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PopStateEvent))));
  dart.setLibraryUri(html$.PopStateEvent, I[167]);
  dart.registerExtension("PopStateEvent", html$.PopStateEvent);
  html$.PositionError = class PositionError extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PositionError.__();
    }
    get [S$.$code]() {
      return this.code;
    }
    get [$message]() {
      return this.message;
    }
  };
  dart.addRtiResources(html$.PositionError, ["html|PositionError"]);
  dart.setStaticMethodSignature(html$.PositionError, () => ['__']);
  dart.setGetterSignature(html$.PositionError, () => dart.global.Object.setPrototypeOf({
    [S$.$code]: T$.intN(),
    [$message]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PositionError))));
  dart.setLibraryUri(html$.PositionError, I[167]);
  dart.setStaticFieldSignature(html$.PositionError, () => ['PERMISSION_DENIED', 'POSITION_UNAVAILABLE', 'TIMEOUT']);
  dart.defineLazy(html$.PositionError, {
    /*html$.PositionError.PERMISSION_DENIED*/get PERMISSION_DENIED() {
      return 1;
    },
    /*html$.PositionError.POSITION_UNAVAILABLE*/get POSITION_UNAVAILABLE() {
      return 2;
    },
    /*html$.PositionError.TIMEOUT*/get TIMEOUT() {
      return 3;
    }
  }, false);
  dart.registerExtension("PositionError", html$.PositionError);
  dart.registerExtension("GeolocationPositionError", html$.PositionError);
  html$.PreElement = class PreElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.PreElement.__();
    }
    static new() {
      return html$.document.createElement("pre");
    }
    static ['_#new#tearOff']() {
      return html$.PreElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.PreElement.created();
    }
  };
  (html$.PreElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.PreElement).created.call(this);
    ;
  }).prototype = html$.PreElement.prototype;
  dart.addRtiResources(html$.PreElement, ["html|PreElement"]);
  dart.setStaticMethodSignature(html$.PreElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.PreElement, I[167]);
  dart.registerExtension("HTMLPreElement", html$.PreElement);
  html$.Presentation = class Presentation extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Presentation.__();
    }
    get [S$2.$defaultRequest]() {
      return this.defaultRequest;
    }
    set [S$2.$defaultRequest](value) {
      this.defaultRequest = value;
    }
    get [S$2.$receiver]() {
      return this.receiver;
    }
  };
  dart.addRtiResources(html$.Presentation, ["html|Presentation"]);
  dart.setStaticMethodSignature(html$.Presentation, () => ['__']);
  dart.setGetterSignature(html$.Presentation, () => dart.global.Object.setPrototypeOf({
    [S$2.$defaultRequest]: T.PresentationRequestN(),
    [S$2.$receiver]: T.PresentationReceiverN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Presentation))));
  dart.setSetterSignature(html$.Presentation, () => dart.global.Object.setPrototypeOf({[S$2.$defaultRequest]: T.PresentationRequestN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Presentation))));
  dart.setLibraryUri(html$.Presentation, I[167]);
  dart.registerExtension("Presentation", html$.Presentation);
  html$.PresentationAvailability = class PresentationAvailability extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.PresentationAvailability.__();
    }
    get [S.$value]() {
      return this.value;
    }
    get [S.$onChange]() {
      return html$.PresentationAvailability.changeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.PresentationAvailability, ["html|PresentationAvailability"]);
  dart.setStaticMethodSignature(html$.PresentationAvailability, () => ['__']);
  dart.setGetterSignature(html$.PresentationAvailability, () => dart.global.Object.setPrototypeOf({
    [S.$value]: T$.boolN(),
    [S.$onChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PresentationAvailability))));
  dart.setLibraryUri(html$.PresentationAvailability, I[167]);
  dart.setStaticFieldSignature(html$.PresentationAvailability, () => ['changeEvent']);
  dart.defineLazy(html$.PresentationAvailability, {
    /*html$.PresentationAvailability.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    }
  }, false);
  dart.registerExtension("PresentationAvailability", html$.PresentationAvailability);
  html$.PresentationConnection = class PresentationConnection extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.PresentationConnection.__();
    }
    get [S$2.$binaryType]() {
      return this.binaryType;
    }
    set [S$2.$binaryType](value) {
      this.binaryType = value;
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$.$state]() {
      return this.state;
    }
    get [S$.$url]() {
      return this.url;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$1.$send](...args) {
      return this.send.apply(this, args);
    }
    [S$2.$terminate](...args) {
      return this.terminate.apply(this, args);
    }
    get [S$.$onMessage]() {
      return html$.PresentationConnection.messageEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.PresentationConnection, ["html|PresentationConnection"]);
  dart.setMethodSignature(html$.PresentationConnection, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$.VoidTovoid(),
    [S$1.$send]: T$.dynamicTovoid(),
    [S$2.$terminate]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PresentationConnection))));
  dart.setStaticMethodSignature(html$.PresentationConnection, () => ['__']);
  dart.setGetterSignature(html$.PresentationConnection, () => dart.global.Object.setPrototypeOf({
    [S$2.$binaryType]: T$.StringN(),
    [S.$id]: T$.StringN(),
    [S$.$state]: T$.StringN(),
    [S$.$url]: T$.StringN(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PresentationConnection))));
  dart.setSetterSignature(html$.PresentationConnection, () => dart.global.Object.setPrototypeOf({[S$2.$binaryType]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.PresentationConnection))));
  dart.setLibraryUri(html$.PresentationConnection, I[167]);
  dart.setStaticFieldSignature(html$.PresentationConnection, () => ['messageEvent']);
  dart.defineLazy(html$.PresentationConnection, {
    /*html$.PresentationConnection.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    }
  }, false);
  dart.registerExtension("PresentationConnection", html$.PresentationConnection);
  html$.PresentationConnectionAvailableEvent = class PresentationConnectionAvailableEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.PresentationConnectionAvailableEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 25939, 55, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 25939, 65, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.PresentationConnectionAvailableEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 25939, 55, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 25939, 65, "eventInitDict");
      return html$.PresentationConnectionAvailableEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new PresentationConnectionAvailableEvent(type, eventInitDict);
    }
    get [S$1.$connection]() {
      return this.connection;
    }
  };
  dart.addRtiResources(html$.PresentationConnectionAvailableEvent, ["html|PresentationConnectionAvailableEvent"]);
  dart.setStaticMethodSignature(html$.PresentationConnectionAvailableEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.PresentationConnectionAvailableEvent, () => dart.global.Object.setPrototypeOf({[S$1.$connection]: T.PresentationConnectionN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PresentationConnectionAvailableEvent))));
  dart.setLibraryUri(html$.PresentationConnectionAvailableEvent, I[167]);
  dart.registerExtension("PresentationConnectionAvailableEvent", html$.PresentationConnectionAvailableEvent);
  html$.PresentationConnectionCloseEvent = class PresentationConnectionCloseEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.PresentationConnectionCloseEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 25961, 51, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 25961, 61, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.PresentationConnectionCloseEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 25961, 51, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 25961, 61, "eventInitDict");
      return html$.PresentationConnectionCloseEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new PresentationConnectionCloseEvent(type, eventInitDict);
    }
    get [$message]() {
      return this.message;
    }
    get [S$.$reason]() {
      return this.reason;
    }
  };
  dart.addRtiResources(html$.PresentationConnectionCloseEvent, ["html|PresentationConnectionCloseEvent"]);
  dart.setStaticMethodSignature(html$.PresentationConnectionCloseEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.PresentationConnectionCloseEvent, () => dart.global.Object.setPrototypeOf({
    [$message]: T$.StringN(),
    [S$.$reason]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PresentationConnectionCloseEvent))));
  dart.setLibraryUri(html$.PresentationConnectionCloseEvent, I[167]);
  dart.registerExtension("PresentationConnectionCloseEvent", html$.PresentationConnectionCloseEvent);
  html$.PresentationConnectionList = class PresentationConnectionList extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.PresentationConnectionList.__();
    }
    get [S$2.$connections]() {
      return this.connections;
    }
  };
  dart.addRtiResources(html$.PresentationConnectionList, ["html|PresentationConnectionList"]);
  dart.setStaticMethodSignature(html$.PresentationConnectionList, () => ['__']);
  dart.setGetterSignature(html$.PresentationConnectionList, () => dart.global.Object.setPrototypeOf({[S$2.$connections]: T.ListNOfPresentationConnection()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PresentationConnectionList))));
  dart.setLibraryUri(html$.PresentationConnectionList, I[167]);
  dart.registerExtension("PresentationConnectionList", html$.PresentationConnectionList);
  html$.PresentationReceiver = class PresentationReceiver extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PresentationReceiver.__();
    }
    get [S$2.$connectionList]() {
      return js_util.promiseToFuture(T.PresentationConnectionList(), this.connectionList);
    }
  };
  dart.addRtiResources(html$.PresentationReceiver, ["html|PresentationReceiver"]);
  dart.setStaticMethodSignature(html$.PresentationReceiver, () => ['__']);
  dart.setGetterSignature(html$.PresentationReceiver, () => dart.global.Object.setPrototypeOf({[S$2.$connectionList]: T.FutureOfPresentationConnectionList()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PresentationReceiver))));
  dart.setLibraryUri(html$.PresentationReceiver, I[167]);
  dart.registerExtension("PresentationReceiver", html$.PresentationReceiver);
  html$.PresentationRequest = class PresentationRequest$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.PresentationRequest.__();
    }
    static new(url_OR_urls) {
      if (typeof url_OR_urls == 'string') {
        return html$.PresentationRequest._create_1(url_OR_urls);
      }
      if (T$0.ListOfString()[_is](url_OR_urls)) {
        let urls_1 = html_common.convertDartToNative_StringArray(url_OR_urls);
        return html$.PresentationRequest._create_2(urls_1);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](url_OR_urls) {
      return html$.PresentationRequest.new(url_OR_urls);
    }
    static _create_1(url_OR_urls) {
      return new PresentationRequest(url_OR_urls);
    }
    static _create_2(url_OR_urls) {
      return new PresentationRequest(url_OR_urls);
    }
    [S$2.$getAvailability]() {
      return js_util.promiseToFuture(T.PresentationAvailability(), this.getAvailability());
    }
    [S$2.$reconnect](id) {
      if (id == null) dart.nullFailed(I[166], 26033, 51, "id");
      return js_util.promiseToFuture(T.PresentationConnection(), this.reconnect(id));
    }
    [S$.$start]() {
      return js_util.promiseToFuture(T.PresentationConnection(), this.start());
    }
  };
  dart.addRtiResources(html$.PresentationRequest, ["html|PresentationRequest"]);
  dart.setMethodSignature(html$.PresentationRequest, () => dart.global.Object.setPrototypeOf({
    [S$2.$getAvailability]: T.VoidToFutureOfPresentationAvailability(),
    [S$2.$reconnect]: T.StringToFutureOfPresentationConnection(),
    [S$.$start]: T.VoidToFutureOfPresentationConnection()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PresentationRequest))));
  dart.setStaticMethodSignature(html$.PresentationRequest, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.PresentationRequest, I[167]);
  dart.registerExtension("PresentationRequest", html$.PresentationRequest);
  html$.ProcessingInstruction = class ProcessingInstruction extends html$.CharacterData {
    static ['_#_#tearOff']() {
      return html$.ProcessingInstruction.__();
    }
    get [S$1.$sheet]() {
      return this.sheet;
    }
    get [S.$target]() {
      return this.target;
    }
  };
  dart.addRtiResources(html$.ProcessingInstruction, ["html|ProcessingInstruction"]);
  dart.setStaticMethodSignature(html$.ProcessingInstruction, () => ['__']);
  dart.setGetterSignature(html$.ProcessingInstruction, () => dart.global.Object.setPrototypeOf({
    [S$1.$sheet]: T$4.StyleSheetN(),
    [S.$target]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ProcessingInstruction))));
  dart.setLibraryUri(html$.ProcessingInstruction, I[167]);
  dart.registerExtension("ProcessingInstruction", html$.ProcessingInstruction);
  html$.ProgressElement = class ProgressElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ProgressElement.__();
    }
    static new() {
      return T.ProgressElement()[_as](html$.document[S.$createElement]("progress"));
    }
    static ['_#new#tearOff']() {
      return html$.ProgressElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.ProgressElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("progress");
    }
    get [S$.$labels]() {
      return this.labels;
    }
    get [S$1.$max]() {
      return this.max;
    }
    set [S$1.$max](value) {
      this.max = value;
    }
    get [S$0.$position]() {
      return this.position;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  (html$.ProgressElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ProgressElement).created.call(this);
    ;
  }).prototype = html$.ProgressElement.prototype;
  dart.addRtiResources(html$.ProgressElement, ["html|ProgressElement"]);
  dart.setStaticMethodSignature(html$.ProgressElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.ProgressElement, () => dart.global.Object.setPrototypeOf({
    [S$.$labels]: T$4.ListNOfNode(),
    [S$1.$max]: T$.num(),
    [S$0.$position]: T$.num(),
    [S.$value]: T$.num()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ProgressElement))));
  dart.setSetterSignature(html$.ProgressElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$max]: T$.num(),
    [S.$value]: T$.num()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.ProgressElement))));
  dart.setStaticGetterSignature(html$.ProgressElement, () => ['supported']);
  dart.setLibraryUri(html$.ProgressElement, I[167]);
  dart.registerExtension("HTMLProgressElement", html$.ProgressElement);
  html$.ProgressEvent = class ProgressEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.ProgressEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 26110, 32, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.ProgressEvent._create_1(type, eventInitDict_1);
      }
      return html$.ProgressEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 26110, 32, "type");
      return html$.ProgressEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new ProgressEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new ProgressEvent(type);
    }
    get [S$2.$lengthComputable]() {
      return this.lengthComputable;
    }
    get [S$1.$loaded]() {
      return this.loaded;
    }
    get [S$2.$total]() {
      return this.total;
    }
  };
  dart.addRtiResources(html$.ProgressEvent, ["html|ProgressEvent"]);
  dart.setStaticMethodSignature(html$.ProgressEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.ProgressEvent, () => dart.global.Object.setPrototypeOf({
    [S$2.$lengthComputable]: T$.bool(),
    [S$1.$loaded]: T$.intN(),
    [S$2.$total]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ProgressEvent))));
  dart.setLibraryUri(html$.ProgressEvent, I[167]);
  dart.registerExtension("ProgressEvent", html$.ProgressEvent);
  html$.PromiseRejectionEvent = class PromiseRejectionEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.PromiseRejectionEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 26139, 40, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 26139, 50, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.PromiseRejectionEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 26139, 40, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 26139, 50, "eventInitDict");
      return html$.PromiseRejectionEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new PromiseRejectionEvent(type, eventInitDict);
    }
    get [S$2.$promise]() {
      return js_util.promiseToFuture(T$.dynamic(), this.promise);
    }
    get [S$.$reason]() {
      return this.reason;
    }
  };
  dart.addRtiResources(html$.PromiseRejectionEvent, ["html|PromiseRejectionEvent"]);
  dart.setStaticMethodSignature(html$.PromiseRejectionEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.PromiseRejectionEvent, () => dart.global.Object.setPrototypeOf({
    [S$2.$promise]: T$0.Future(),
    [S$.$reason]: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PromiseRejectionEvent))));
  dart.setLibraryUri(html$.PromiseRejectionEvent, I[167]);
  dart.registerExtension("PromiseRejectionEvent", html$.PromiseRejectionEvent);
  html$.PublicKeyCredential = class PublicKeyCredential extends html$.Credential {
    static ['_#_#tearOff']() {
      return html$.PublicKeyCredential.__();
    }
    get [S$2.$rawId]() {
      return this.rawId;
    }
    get [S$.$response]() {
      return this.response;
    }
  };
  dart.addRtiResources(html$.PublicKeyCredential, ["html|PublicKeyCredential"]);
  dart.setStaticMethodSignature(html$.PublicKeyCredential, () => ['__']);
  dart.setGetterSignature(html$.PublicKeyCredential, () => dart.global.Object.setPrototypeOf({
    [S$2.$rawId]: T$4.ByteBufferN(),
    [S$.$response]: T.AuthenticatorResponseN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PublicKeyCredential))));
  dart.setLibraryUri(html$.PublicKeyCredential, I[167]);
  dart.registerExtension("PublicKeyCredential", html$.PublicKeyCredential);
  html$.PushEvent = class PushEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.PushEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 26179, 28, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.PushEvent._create_1(type, eventInitDict_1);
      }
      return html$.PushEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 26179, 28, "type");
      return html$.PushEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new PushEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new PushEvent(type);
    }
    get [S$.$data]() {
      return this.data;
    }
  };
  dart.addRtiResources(html$.PushEvent, ["html|PushEvent"]);
  dart.setStaticMethodSignature(html$.PushEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.PushEvent, () => dart.global.Object.setPrototypeOf({[S$.$data]: T.PushMessageDataN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PushEvent))));
  dart.setLibraryUri(html$.PushEvent, I[167]);
  dart.registerExtension("PushEvent", html$.PushEvent);
  html$.PushManager = class PushManager extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PushManager.__();
    }
    [S$2.$getSubscription]() {
      return js_util.promiseToFuture(T.PushSubscription(), this.getSubscription());
    }
    [S$2.$permissionState](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.permissionState(options_dict));
    }
    [S$2.$subscribe](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T.PushSubscription(), this.subscribe(options_dict));
    }
  };
  dart.addRtiResources(html$.PushManager, ["html|PushManager"]);
  dart.setMethodSignature(html$.PushManager, () => dart.global.Object.setPrototypeOf({
    [S$2.$getSubscription]: T.VoidToFutureOfPushSubscription(),
    [S$2.$permissionState]: T$4.MapNToFuture(),
    [S$2.$subscribe]: T.MapNToFutureOfPushSubscription()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PushManager))));
  dart.setStaticMethodSignature(html$.PushManager, () => ['__']);
  dart.setStaticGetterSignature(html$.PushManager, () => ['supportedContentEncodings']);
  dart.setLibraryUri(html$.PushManager, I[167]);
  dart.registerExtension("PushManager", html$.PushManager);
  html$.PushMessageData = class PushMessageData extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PushMessageData.__();
    }
    [S$.$arrayBuffer](...args) {
      return this.arrayBuffer.apply(this, args);
    }
    [S$.$blob](...args) {
      return this.blob.apply(this, args);
    }
    [S$.$json](...args) {
      return this.json.apply(this, args);
    }
    [S.$text](...args) {
      return this.text.apply(this, args);
    }
  };
  dart.addRtiResources(html$.PushMessageData, ["html|PushMessageData"]);
  dart.setMethodSignature(html$.PushMessageData, () => dart.global.Object.setPrototypeOf({
    [S$.$arrayBuffer]: T.VoidToByteBuffer(),
    [S$.$blob]: T$4.VoidToBlob(),
    [S$.$json]: T$.VoidToObject(),
    [S.$text]: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PushMessageData))));
  dart.setStaticMethodSignature(html$.PushMessageData, () => ['__']);
  dart.setLibraryUri(html$.PushMessageData, I[167]);
  dart.registerExtension("PushMessageData", html$.PushMessageData);
  html$.PushSubscription = class PushSubscription extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PushSubscription.__();
    }
    get [S$2.$endpoint]() {
      return this.endpoint;
    }
    get [S$2.$expirationTime]() {
      return this.expirationTime;
    }
    get [S$0.$options]() {
      return this.options;
    }
    [S.$getKey](...args) {
      return this.getKey.apply(this, args);
    }
    [S$2.$unsubscribe]() {
      return js_util.promiseToFuture(T$.bool(), this.unsubscribe());
    }
  };
  dart.addRtiResources(html$.PushSubscription, ["html|PushSubscription"]);
  dart.setMethodSignature(html$.PushSubscription, () => dart.global.Object.setPrototypeOf({
    [S.$getKey]: T.StringToByteBufferN(),
    [S$2.$unsubscribe]: T$1.VoidToFutureOfbool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.PushSubscription))));
  dart.setStaticMethodSignature(html$.PushSubscription, () => ['__']);
  dart.setGetterSignature(html$.PushSubscription, () => dart.global.Object.setPrototypeOf({
    [S$2.$endpoint]: T$.StringN(),
    [S$2.$expirationTime]: T$.intN(),
    [S$0.$options]: T.PushSubscriptionOptionsN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PushSubscription))));
  dart.setLibraryUri(html$.PushSubscription, I[167]);
  dart.registerExtension("PushSubscription", html$.PushSubscription);
  html$.PushSubscriptionOptions = class PushSubscriptionOptions extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.PushSubscriptionOptions.__();
    }
    get [S$2.$applicationServerKey]() {
      return this.applicationServerKey;
    }
    get [S$2.$userVisibleOnly]() {
      return this.userVisibleOnly;
    }
  };
  dart.addRtiResources(html$.PushSubscriptionOptions, ["html|PushSubscriptionOptions"]);
  dart.setStaticMethodSignature(html$.PushSubscriptionOptions, () => ['__']);
  dart.setGetterSignature(html$.PushSubscriptionOptions, () => dart.global.Object.setPrototypeOf({
    [S$2.$applicationServerKey]: T$4.ByteBufferN(),
    [S$2.$userVisibleOnly]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.PushSubscriptionOptions))));
  dart.setLibraryUri(html$.PushSubscriptionOptions, I[167]);
  dart.registerExtension("PushSubscriptionOptions", html$.PushSubscriptionOptions);
  html$.QuoteElement = class QuoteElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.QuoteElement.__();
    }
    static new() {
      return html$.document.createElement("q");
    }
    static ['_#new#tearOff']() {
      return html$.QuoteElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.QuoteElement.created();
    }
    get [S$1.$cite]() {
      return this.cite;
    }
    set [S$1.$cite](value) {
      this.cite = value;
    }
  };
  (html$.QuoteElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.QuoteElement).created.call(this);
    ;
  }).prototype = html$.QuoteElement.prototype;
  dart.addRtiResources(html$.QuoteElement, ["html|QuoteElement"]);
  dart.setStaticMethodSignature(html$.QuoteElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.QuoteElement, () => dart.global.Object.setPrototypeOf({[S$1.$cite]: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.QuoteElement))));
  dart.setSetterSignature(html$.QuoteElement, () => dart.global.Object.setPrototypeOf({[S$1.$cite]: T$.String()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.QuoteElement))));
  dart.setLibraryUri(html$.QuoteElement, I[167]);
  dart.registerExtension("HTMLQuoteElement", html$.QuoteElement);
  html$.Range = class Range extends _interceptors.JavaScriptObject {
    static new() {
      return html$.document.createRange();
    }
    static ['_#new#tearOff']() {
      return html$.Range.new();
    }
    static ['_#fromPoint#tearOff'](point) {
      if (point == null) dart.nullFailed(I[166], 26341, 33, "point");
      return html$.Range.fromPoint(point);
    }
    static fromPoint(point) {
      if (point == null) dart.nullFailed(I[166], 26341, 33, "point");
      return html$.document[S$1._caretRangeFromPoint](point.x[$toInt](), point.y[$toInt]());
    }
    static ['_#_#tearOff']() {
      return html$.Range.__();
    }
    get [S$2.$collapsed]() {
      return this.collapsed;
    }
    get [S$2.$commonAncestorContainer]() {
      return this.commonAncestorContainer;
    }
    get [S$2.$endContainer]() {
      return this.endContainer;
    }
    get [S$2.$endOffset]() {
      return this.endOffset;
    }
    get [S$2.$startContainer]() {
      return this.startContainer;
    }
    get [S$2.$startOffset]() {
      return this.startOffset;
    }
    [S$2.$cloneContents](...args) {
      return this.cloneContents.apply(this, args);
    }
    [S$2.$cloneRange](...args) {
      return this.cloneRange.apply(this, args);
    }
    [S$2.$collapse](...args) {
      return this.collapse.apply(this, args);
    }
    [S$2.$compareBoundaryPoints](...args) {
      return this.compareBoundaryPoints.apply(this, args);
    }
    [S$2.$comparePoint](...args) {
      return this.comparePoint.apply(this, args);
    }
    [S$2.$createContextualFragment](...args) {
      return this.createContextualFragment.apply(this, args);
    }
    [S$2.$deleteContents](...args) {
      return this.deleteContents.apply(this, args);
    }
    [S$2.$detach](...args) {
      return this.detach.apply(this, args);
    }
    [$expand](...args) {
      return this.expand.apply(this, args);
    }
    [S$2.$extractContents](...args) {
      return this.extractContents.apply(this, args);
    }
    [S.$getBoundingClientRect](...args) {
      return this.getBoundingClientRect.apply(this, args);
    }
    [S._getClientRects](...args) {
      return this.getClientRects.apply(this, args);
    }
    [S$2.$insertNode](...args) {
      return this.insertNode.apply(this, args);
    }
    [S$2.$isPointInRange](...args) {
      return this.isPointInRange.apply(this, args);
    }
    [S$2.$selectNode](...args) {
      return this.selectNode.apply(this, args);
    }
    [S$2.$selectNodeContents](...args) {
      return this.selectNodeContents.apply(this, args);
    }
    [S$2.$setEnd](...args) {
      return this.setEnd.apply(this, args);
    }
    [S$2.$setEndAfter](...args) {
      return this.setEndAfter.apply(this, args);
    }
    [S$2.$setEndBefore](...args) {
      return this.setEndBefore.apply(this, args);
    }
    [S$2.$setStart](...args) {
      return this.setStart.apply(this, args);
    }
    [S$2.$setStartAfter](...args) {
      return this.setStartAfter.apply(this, args);
    }
    [S$2.$setStartBefore](...args) {
      return this.setStartBefore.apply(this, args);
    }
    [S$2.$surroundContents](...args) {
      return this.surroundContents.apply(this, args);
    }
    [S.$getClientRects]() {
      let value = this[S._getClientRects]();
      let jsProto = value.prototype;
      if (jsProto == null) {
        value.prototype = Object.create(null);
      }
      _js_helper.applyExtension("DOMRectList", value);
      return value;
    }
    static get supportsCreateContextualFragment() {
      return "createContextualFragment" in window.Range.prototype;
    }
  };
  dart.addRtiResources(html$.Range, ["html|Range"]);
  dart.setMethodSignature(html$.Range, () => dart.global.Object.setPrototypeOf({
    [S$2.$cloneContents]: T$5.VoidToDocumentFragment(),
    [S$2.$cloneRange]: T$5.VoidToRange(),
    [S$2.$collapse]: T$4.boolNTovoid(),
    [S$2.$compareBoundaryPoints]: T.intAndRangeToint(),
    [S$2.$comparePoint]: T.NodeAndintToint(),
    [S$2.$createContextualFragment]: T.StringToDocumentFragment(),
    [S$2.$deleteContents]: T$.VoidTovoid(),
    [S$2.$detach]: T$.VoidTovoid(),
    [$expand]: T$2.StringNTovoid(),
    [S$2.$extractContents]: T$5.VoidToDocumentFragment(),
    [S.$getBoundingClientRect]: T$4.VoidToRectangleOfnum(),
    [S._getClientRects]: T$3.VoidToListOfRectangleOfnum(),
    [S$2.$insertNode]: T.NodeTovoid(),
    [S$2.$isPointInRange]: T.NodeAndintTobool(),
    [S$2.$selectNode]: T.NodeTovoid(),
    [S$2.$selectNodeContents]: T.NodeTovoid(),
    [S$2.$setEnd]: T.NodeAndintTovoid$1(),
    [S$2.$setEndAfter]: T.NodeTovoid(),
    [S$2.$setEndBefore]: T.NodeTovoid(),
    [S$2.$setStart]: T.NodeAndintTovoid$1(),
    [S$2.$setStartAfter]: T.NodeTovoid(),
    [S$2.$setStartBefore]: T.NodeTovoid(),
    [S$2.$surroundContents]: T.NodeTovoid(),
    [S.$getClientRects]: T$3.VoidToListOfRectangleOfnum()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Range))));
  dart.setStaticMethodSignature(html$.Range, () => ['new', 'fromPoint', '__']);
  dart.setGetterSignature(html$.Range, () => dart.global.Object.setPrototypeOf({
    [S$2.$collapsed]: T$.bool(),
    [S$2.$commonAncestorContainer]: T$5.Node(),
    [S$2.$endContainer]: T$5.Node(),
    [S$2.$endOffset]: T$.int(),
    [S$2.$startContainer]: T$5.Node(),
    [S$2.$startOffset]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Range))));
  dart.setStaticGetterSignature(html$.Range, () => ['supportsCreateContextualFragment']);
  dart.setLibraryUri(html$.Range, I[167]);
  dart.setStaticFieldSignature(html$.Range, () => ['END_TO_END', 'END_TO_START', 'START_TO_END', 'START_TO_START']);
  dart.defineLazy(html$.Range, {
    /*html$.Range.END_TO_END*/get END_TO_END() {
      return 2;
    },
    /*html$.Range.END_TO_START*/get END_TO_START() {
      return 3;
    },
    /*html$.Range.START_TO_END*/get START_TO_END() {
      return 1;
    },
    /*html$.Range.START_TO_START*/get START_TO_START() {
      return 0;
    }
  }, false);
  dart.registerExtension("Range", html$.Range);
  html$.RelatedApplication = class RelatedApplication extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.RelatedApplication.__();
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$2.$platform]() {
      return this.platform;
    }
    get [S$.$url]() {
      return this.url;
    }
  };
  dart.addRtiResources(html$.RelatedApplication, ["html|RelatedApplication"]);
  dart.setStaticMethodSignature(html$.RelatedApplication, () => ['__']);
  dart.setGetterSignature(html$.RelatedApplication, () => dart.global.Object.setPrototypeOf({
    [S.$id]: T$.StringN(),
    [S$2.$platform]: T$.StringN(),
    [S$.$url]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RelatedApplication))));
  dart.setLibraryUri(html$.RelatedApplication, I[167]);
  dart.registerExtension("RelatedApplication", html$.RelatedApplication);
  html$.RelativeOrientationSensor = class RelativeOrientationSensor$ extends html$.OrientationSensor {
    static ['_#_#tearOff']() {
      return html$.RelativeOrientationSensor.__();
    }
    static new(sensorOptions = null) {
      if (sensorOptions != null) {
        let sensorOptions_1 = html_common.convertDartToNative_Dictionary(sensorOptions);
        return html$.RelativeOrientationSensor._create_1(sensorOptions_1);
      }
      return html$.RelativeOrientationSensor._create_2();
    }
    static ['_#new#tearOff'](sensorOptions = null) {
      return html$.RelativeOrientationSensor.new(sensorOptions);
    }
    static _create_1(sensorOptions) {
      return new RelativeOrientationSensor(sensorOptions);
    }
    static _create_2() {
      return new RelativeOrientationSensor();
    }
  };
  dart.addRtiResources(html$.RelativeOrientationSensor, ["html|RelativeOrientationSensor"]);
  dart.setStaticMethodSignature(html$.RelativeOrientationSensor, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.RelativeOrientationSensor, I[167]);
  dart.registerExtension("RelativeOrientationSensor", html$.RelativeOrientationSensor);
  html$.RemotePlayback = class RemotePlayback extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.RemotePlayback.__();
    }
    get [S$.$state]() {
      return this.state;
    }
    [S$2.$cancelWatchAvailability](id = null) {
      return js_util.promiseToFuture(T$.dynamic(), this.cancelWatchAvailability(id));
    }
    [S$.$prompt]() {
      return js_util.promiseToFuture(T$.dynamic(), this.prompt());
    }
    [S$2.$watchAvailability](callback) {
      if (callback == null) dart.nullFailed(I[166], 26501, 68, "callback");
      return js_util.promiseToFuture(T$.int(), this.watchAvailability(callback));
    }
  };
  dart.addRtiResources(html$.RemotePlayback, ["html|RemotePlayback"]);
  dart.setMethodSignature(html$.RemotePlayback, () => dart.global.Object.setPrototypeOf({
    [S$2.$cancelWatchAvailability]: T.intNToFuture(),
    [S$.$prompt]: T$.VoidToFuture(),
    [S$2.$watchAvailability]: T.FnToFutureOfint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.RemotePlayback))));
  dart.setStaticMethodSignature(html$.RemotePlayback, () => ['__']);
  dart.setGetterSignature(html$.RemotePlayback, () => dart.global.Object.setPrototypeOf({[S$.$state]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RemotePlayback))));
  dart.setLibraryUri(html$.RemotePlayback, I[167]);
  dart.registerExtension("RemotePlayback", html$.RemotePlayback);
  html$.ReportingObserver = class ReportingObserver$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ReportingObserver.__();
    }
    static new(callback) {
      if (callback == null) dart.nullFailed(I[166], 26533, 55, "callback");
      let callback_1 = _js_helper.convertDartClosureToJS(T.ListAndReportingObserverTovoid(), callback, 2);
      return html$.ReportingObserver._create_1(callback_1);
    }
    static ['_#new#tearOff'](callback) {
      if (callback == null) dart.nullFailed(I[166], 26533, 55, "callback");
      return html$.ReportingObserver.new(callback);
    }
    static _create_1(callback) {
      return new ReportingObserver(callback);
    }
    [S$1.$disconnect](...args) {
      return this.disconnect.apply(this, args);
    }
    [S.$observe](...args) {
      return this.observe.apply(this, args);
    }
  };
  dart.addRtiResources(html$.ReportingObserver, ["html|ReportingObserver"]);
  dart.setMethodSignature(html$.ReportingObserver, () => dart.global.Object.setPrototypeOf({
    [S$1.$disconnect]: T$.VoidTovoid(),
    [S.$observe]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ReportingObserver))));
  dart.setStaticMethodSignature(html$.ReportingObserver, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$.ReportingObserver, I[167]);
  dart.registerExtension("ReportingObserver", html$.ReportingObserver);
  html$.ResizeObserver = class ResizeObserver$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ResizeObserver.__();
    }
    static new(callback) {
      if (callback == null) dart.nullFailed(I[166], 26570, 49, "callback");
      let callback_1 = _js_helper.convertDartClosureToJS(T.ListAndResizeObserverTovoid(), callback, 2);
      return html$.ResizeObserver._create_1(callback_1);
    }
    static ['_#new#tearOff'](callback) {
      if (callback == null) dart.nullFailed(I[166], 26570, 49, "callback");
      return html$.ResizeObserver.new(callback);
    }
    static _create_1(callback) {
      return new ResizeObserver(callback);
    }
    [S$1.$disconnect](...args) {
      return this.disconnect.apply(this, args);
    }
    [S.$observe](...args) {
      return this.observe.apply(this, args);
    }
    [S.$unobserve](...args) {
      return this.unobserve.apply(this, args);
    }
  };
  dart.addRtiResources(html$.ResizeObserver, ["html|ResizeObserver"]);
  dart.setMethodSignature(html$.ResizeObserver, () => dart.global.Object.setPrototypeOf({
    [S$1.$disconnect]: T$.VoidTovoid(),
    [S.$observe]: T$5.ElementTovoid(),
    [S.$unobserve]: T$5.ElementTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ResizeObserver))));
  dart.setStaticMethodSignature(html$.ResizeObserver, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$.ResizeObserver, I[167]);
  dart.registerExtension("ResizeObserver", html$.ResizeObserver);
  html$.ResizeObserverEntry = class ResizeObserverEntry extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ResizeObserverEntry.__();
    }
    get [S$2.$contentRect]() {
      return this.contentRect;
    }
    get [S.$target]() {
      return this.target;
    }
  };
  dart.addRtiResources(html$.ResizeObserverEntry, ["html|ResizeObserverEntry"]);
  dart.setStaticMethodSignature(html$.ResizeObserverEntry, () => ['__']);
  dart.setGetterSignature(html$.ResizeObserverEntry, () => dart.global.Object.setPrototypeOf({
    [S$2.$contentRect]: T$5.DomRectReadOnlyN(),
    [S.$target]: T$3.ElementN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ResizeObserverEntry))));
  dart.setLibraryUri(html$.ResizeObserverEntry, I[167]);
  dart.registerExtension("ResizeObserverEntry", html$.ResizeObserverEntry);
  html$.RtcCertificate = class RtcCertificate extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.RtcCertificate.__();
    }
    get [S$2.$expires]() {
      return this.expires;
    }
    [S$2.$getFingerprints](...args) {
      return this.getFingerprints.apply(this, args);
    }
  };
  dart.addRtiResources(html$.RtcCertificate, ["html|RtcCertificate"]);
  dart.setMethodSignature(html$.RtcCertificate, () => dart.global.Object.setPrototypeOf({[S$2.$getFingerprints]: T.VoidToListOfMap()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.RtcCertificate))));
  dart.setStaticMethodSignature(html$.RtcCertificate, () => ['__']);
  dart.setGetterSignature(html$.RtcCertificate, () => dart.global.Object.setPrototypeOf({[S$2.$expires]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcCertificate))));
  dart.setLibraryUri(html$.RtcCertificate, I[167]);
  dart.registerExtension("RTCCertificate", html$.RtcCertificate);
  html$.RtcDataChannel = class RtcDataChannel extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.RtcDataChannel.__();
    }
    get [S$2.$binaryType]() {
      return this.binaryType;
    }
    set [S$2.$binaryType](value) {
      this.binaryType = value;
    }
    get [S$2.$bufferedAmount]() {
      return this.bufferedAmount;
    }
    get [S$2.$bufferedAmountLowThreshold]() {
      return this.bufferedAmountLowThreshold;
    }
    set [S$2.$bufferedAmountLowThreshold](value) {
      this.bufferedAmountLowThreshold = value;
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$.$label]() {
      return this.label;
    }
    get [S$2.$maxRetransmitTime]() {
      return this.maxRetransmitTime;
    }
    get [S$2.$maxRetransmits]() {
      return this.maxRetransmits;
    }
    get [S$2.$negotiated]() {
      return this.negotiated;
    }
    get [S$2.$ordered]() {
      return this.ordered;
    }
    get [S$.$protocol]() {
      return this.protocol;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    get [S$2.$reliable]() {
      return this.reliable;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$1.$send](...args) {
      return this.send.apply(this, args);
    }
    [S$2.$sendBlob](...args) {
      return this.send.apply(this, args);
    }
    [S$2.$sendByteBuffer](...args) {
      return this.send.apply(this, args);
    }
    [S$2.$sendString](...args) {
      return this.send.apply(this, args);
    }
    [S$2.$sendTypedData](...args) {
      return this.send.apply(this, args);
    }
    get [S.$onClose]() {
      return html$.RtcDataChannel.closeEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.RtcDataChannel.errorEvent.forTarget(this);
    }
    get [S$.$onMessage]() {
      return html$.RtcDataChannel.messageEvent.forTarget(this);
    }
    get [S$1.$onOpen]() {
      return html$.RtcDataChannel.openEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.RtcDataChannel, ["html|RtcDataChannel"]);
  dart.setMethodSignature(html$.RtcDataChannel, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$.VoidTovoid(),
    [S$1.$send]: T$.dynamicTovoid(),
    [S$2.$sendBlob]: T$5.BlobTovoid(),
    [S$2.$sendByteBuffer]: T.ByteBufferTovoid(),
    [S$2.$sendString]: T$.StringTovoid(),
    [S$2.$sendTypedData]: T.TypedDataTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.RtcDataChannel))));
  dart.setStaticMethodSignature(html$.RtcDataChannel, () => ['__']);
  dart.setGetterSignature(html$.RtcDataChannel, () => dart.global.Object.setPrototypeOf({
    [S$2.$binaryType]: T$.StringN(),
    [S$2.$bufferedAmount]: T$.intN(),
    [S$2.$bufferedAmountLowThreshold]: T$.intN(),
    [S.$id]: T$.intN(),
    [S$.$label]: T$.StringN(),
    [S$2.$maxRetransmitTime]: T$.intN(),
    [S$2.$maxRetransmits]: T$.intN(),
    [S$2.$negotiated]: T$.boolN(),
    [S$2.$ordered]: T$.boolN(),
    [S$.$protocol]: T$.StringN(),
    [S.$readyState]: T$.StringN(),
    [S$2.$reliable]: T$.boolN(),
    [S.$onClose]: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent(),
    [S$1.$onOpen]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcDataChannel))));
  dart.setSetterSignature(html$.RtcDataChannel, () => dart.global.Object.setPrototypeOf({
    [S$2.$binaryType]: T$.StringN(),
    [S$2.$bufferedAmountLowThreshold]: T$.intN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.RtcDataChannel))));
  dart.setLibraryUri(html$.RtcDataChannel, I[167]);
  dart.setStaticFieldSignature(html$.RtcDataChannel, () => ['closeEvent', 'errorEvent', 'messageEvent', 'openEvent']);
  dart.defineLazy(html$.RtcDataChannel, {
    /*html$.RtcDataChannel.closeEvent*/get closeEvent() {
      return C[266] || CT.C266;
    },
    /*html$.RtcDataChannel.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.RtcDataChannel.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    },
    /*html$.RtcDataChannel.openEvent*/get openEvent() {
      return C[381] || CT.C381;
    }
  }, false);
  dart.registerExtension("RTCDataChannel", html$.RtcDataChannel);
  dart.registerExtension("DataChannel", html$.RtcDataChannel);
  html$.RtcDataChannelEvent = class RtcDataChannelEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.RtcDataChannelEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 26734, 38, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 26734, 48, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.RtcDataChannelEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 26734, 38, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 26734, 48, "eventInitDict");
      return html$.RtcDataChannelEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new RTCDataChannelEvent(type, eventInitDict);
    }
    get [S$2.$channel]() {
      return this.channel;
    }
  };
  dart.addRtiResources(html$.RtcDataChannelEvent, ["html|RtcDataChannelEvent"]);
  dart.setStaticMethodSignature(html$.RtcDataChannelEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.RtcDataChannelEvent, () => dart.global.Object.setPrototypeOf({[S$2.$channel]: T.RtcDataChannelN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcDataChannelEvent))));
  dart.setLibraryUri(html$.RtcDataChannelEvent, I[167]);
  dart.registerExtension("RTCDataChannelEvent", html$.RtcDataChannelEvent);
  html$.RtcDtmfSender = class RtcDtmfSender extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.RtcDtmfSender.__();
    }
    get [S$2.$canInsertDtmf]() {
      return this.canInsertDTMF;
    }
    get [S$.$duration]() {
      return this.duration;
    }
    get [S$2.$interToneGap]() {
      return this.interToneGap;
    }
    get [S$2.$toneBuffer]() {
      return this.toneBuffer;
    }
    get [S$1.$track]() {
      return this.track;
    }
    [S$2.$insertDtmf](...args) {
      return this.insertDTMF.apply(this, args);
    }
    get [S$2.$onToneChange]() {
      return html$.RtcDtmfSender.toneChangeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.RtcDtmfSender, ["html|RtcDtmfSender"]);
  dart.setMethodSignature(html$.RtcDtmfSender, () => dart.global.Object.setPrototypeOf({[S$2.$insertDtmf]: T.StringAndintNAndintNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.RtcDtmfSender))));
  dart.setStaticMethodSignature(html$.RtcDtmfSender, () => ['__']);
  dart.setGetterSignature(html$.RtcDtmfSender, () => dart.global.Object.setPrototypeOf({
    [S$2.$canInsertDtmf]: T$.boolN(),
    [S$.$duration]: T$.intN(),
    [S$2.$interToneGap]: T$.intN(),
    [S$2.$toneBuffer]: T$.StringN(),
    [S$1.$track]: T$5.MediaStreamTrackN(),
    [S$2.$onToneChange]: T.StreamOfRtcDtmfToneChangeEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcDtmfSender))));
  dart.setLibraryUri(html$.RtcDtmfSender, I[167]);
  dart.setStaticFieldSignature(html$.RtcDtmfSender, () => ['toneChangeEvent']);
  dart.defineLazy(html$.RtcDtmfSender, {
    /*html$.RtcDtmfSender.toneChangeEvent*/get toneChangeEvent() {
      return C[404] || CT.C404;
    }
  }, false);
  dart.registerExtension("RTCDTMFSender", html$.RtcDtmfSender);
  html$.RtcDtmfToneChangeEvent = class RtcDtmfToneChangeEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.RtcDtmfToneChangeEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 26795, 41, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 26795, 51, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.RtcDtmfToneChangeEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 26795, 41, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 26795, 51, "eventInitDict");
      return html$.RtcDtmfToneChangeEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new RTCDTMFToneChangeEvent(type, eventInitDict);
    }
    get [S$2.$tone]() {
      return this.tone;
    }
  };
  dart.addRtiResources(html$.RtcDtmfToneChangeEvent, ["html|RtcDtmfToneChangeEvent"]);
  dart.setStaticMethodSignature(html$.RtcDtmfToneChangeEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.RtcDtmfToneChangeEvent, () => dart.global.Object.setPrototypeOf({[S$2.$tone]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcDtmfToneChangeEvent))));
  dart.setLibraryUri(html$.RtcDtmfToneChangeEvent, I[167]);
  dart.registerExtension("RTCDTMFToneChangeEvent", html$.RtcDtmfToneChangeEvent);
  html$.RtcIceCandidate = class RtcIceCandidate extends _interceptors.JavaScriptObject {
    static new(dictionary) {
      if (dictionary == null) dart.nullFailed(I[166], 26814, 31, "dictionary");
      let constructorName = window.RTCIceCandidate;
      return new constructorName(html_common.convertDartToNative_SerializedScriptValue(dictionary));
    }
    static ['_#new#tearOff'](dictionary) {
      if (dictionary == null) dart.nullFailed(I[166], 26814, 31, "dictionary");
      return html$.RtcIceCandidate.new(dictionary);
    }
    static ['_#_#tearOff']() {
      return html$.RtcIceCandidate.__();
    }
    get [S$2.$candidate]() {
      return this.candidate;
    }
    set [S$2.$candidate](value) {
      this.candidate = value;
    }
    get [S$2.$sdpMLineIndex]() {
      return this.sdpMLineIndex;
    }
    set [S$2.$sdpMLineIndex](value) {
      this.sdpMLineIndex = value;
    }
    get [S$2.$sdpMid]() {
      return this.sdpMid;
    }
    set [S$2.$sdpMid](value) {
      this.sdpMid = value;
    }
  };
  dart.addRtiResources(html$.RtcIceCandidate, ["html|RtcIceCandidate"]);
  dart.setStaticMethodSignature(html$.RtcIceCandidate, () => ['new', '__']);
  dart.setGetterSignature(html$.RtcIceCandidate, () => dart.global.Object.setPrototypeOf({
    [S$2.$candidate]: T$.StringN(),
    [S$2.$sdpMLineIndex]: T$.intN(),
    [S$2.$sdpMid]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcIceCandidate))));
  dart.setSetterSignature(html$.RtcIceCandidate, () => dart.global.Object.setPrototypeOf({
    [S$2.$candidate]: T$.StringN(),
    [S$2.$sdpMLineIndex]: T$.intN(),
    [S$2.$sdpMid]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.RtcIceCandidate))));
  dart.setLibraryUri(html$.RtcIceCandidate, I[167]);
  dart.registerExtension("RTCIceCandidate", html$.RtcIceCandidate);
  dart.registerExtension("mozRTCIceCandidate", html$.RtcIceCandidate);
  html$.RtcLegacyStatsReport = class RtcLegacyStatsReport extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.RtcLegacyStatsReport.__();
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$.$timestamp]() {
      return html_common.convertNativeToDart_DateTime(this[S$2._get_timestamp]);
    }
    get [S$2._get_timestamp]() {
      return this.timestamp;
    }
    get [S.$type]() {
      return this.type;
    }
    [S$2.$names](...args) {
      return this.names.apply(this, args);
    }
    [S$2.$stat](...args) {
      return this.stat.apply(this, args);
    }
  };
  dart.addRtiResources(html$.RtcLegacyStatsReport, ["html|RtcLegacyStatsReport"]);
  dart.setMethodSignature(html$.RtcLegacyStatsReport, () => dart.global.Object.setPrototypeOf({
    [S$2.$names]: T$2.VoidToListOfString(),
    [S$2.$stat]: T$.StringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.RtcLegacyStatsReport))));
  dart.setStaticMethodSignature(html$.RtcLegacyStatsReport, () => ['__']);
  dart.setGetterSignature(html$.RtcLegacyStatsReport, () => dart.global.Object.setPrototypeOf({
    [S.$id]: T$.StringN(),
    [S$.$timestamp]: T$2.DateTime(),
    [S$2._get_timestamp]: T$.dynamic(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcLegacyStatsReport))));
  dart.setLibraryUri(html$.RtcLegacyStatsReport, I[167]);
  dart.registerExtension("RTCLegacyStatsReport", html$.RtcLegacyStatsReport);
  html$.RtcPeerConnection = class RtcPeerConnection extends html$.EventTarget {
    static new(rtcIceServers, mediaConstraints = null) {
      if (rtcIceServers == null) dart.nullFailed(I[166], 26866, 33, "rtcIceServers");
      let constructorName = window.RTCPeerConnection;
      if (mediaConstraints != null) {
        return new constructorName(html_common.convertDartToNative_SerializedScriptValue(rtcIceServers), html_common.convertDartToNative_SerializedScriptValue(mediaConstraints));
      } else {
        return new constructorName(html_common.convertDartToNative_SerializedScriptValue(rtcIceServers));
      }
    }
    static ['_#new#tearOff'](rtcIceServers, mediaConstraints = null) {
      if (rtcIceServers == null) dart.nullFailed(I[166], 26866, 33, "rtcIceServers");
      return html$.RtcPeerConnection.new(rtcIceServers, mediaConstraints);
    }
    static get supported() {
      try {
        html$.RtcPeerConnection.new(new _js_helper.LinkedMap.from(["iceServers", G$.JSArrayOfMapOfString$String().of([new (G.IdentityMapOfString$String()).from(["url", "stun:localhost"])])]));
        return true;
      } catch (t$36$35e) {
        let _ = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](_)) {
          return false;
        } else
          throw t$36$35e;
      }
      return false;
    }
    [S$2.$getLegacyStats](selector = null) {
      let completer = G$.CompleterOfRtcStatsResponse().new();
      this[S$2._getStats](dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 26910, 16, "value");
        completer.complete(value);
      }, T.RtcStatsResponseTovoid()), selector);
      return completer.future;
    }
    [S$2._getStats](...args) {
      return this.getStats.apply(this, args);
    }
    static generateCertificate(keygenAlgorithm) {
      return generateCertificate(keygenAlgorithm);
    }
    static ['_#_#tearOff']() {
      return html$.RtcPeerConnection.__();
    }
    get [S$2.$connectionState]() {
      return this.connectionState;
    }
    get [S$2.$iceConnectionState]() {
      return this.iceConnectionState;
    }
    get [S$2.$iceGatheringState]() {
      return this.iceGatheringState;
    }
    get [S$2.$localDescription]() {
      return this.localDescription;
    }
    get [S$2.$remoteDescription]() {
      return this.remoteDescription;
    }
    get [S$2.$signalingState]() {
      return this.signalingState;
    }
    [S$2.$addIceCandidate](candidate, successCallback = null, failureCallback = null) {
      if (candidate == null) dart.nullFailed(I[166], 27022, 33, "candidate");
      return js_util.promiseToFuture(T$.dynamic(), this.addIceCandidate(candidate, successCallback, failureCallback));
    }
    [S$2.$addStream](stream, mediaConstraints = null) {
      if (mediaConstraints != null) {
        let mediaConstraints_1 = html_common.convertDartToNative_Dictionary(mediaConstraints);
        this[S$2._addStream_1](stream, mediaConstraints_1);
        return;
      }
      this[S$2._addStream_2](stream);
      return;
    }
    [S$2._addStream_1](...args) {
      return this.addStream.apply(this, args);
    }
    [S$2._addStream_2](...args) {
      return this.addStream.apply(this, args);
    }
    [S$1.$addTrack](...args) {
      return this.addTrack.apply(this, args);
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$2.$createAnswer](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T.RtcSessionDescription(), this.createAnswer(options_dict));
    }
    [S$2.$createDtmfSender](...args) {
      return this.createDTMFSender.apply(this, args);
    }
    [S$2.$createDataChannel](label, dataChannelDict = null) {
      if (label == null) dart.nullFailed(I[166], 27062, 43, "label");
      if (dataChannelDict != null) {
        let dataChannelDict_1 = html_common.convertDartToNative_Dictionary(dataChannelDict);
        return this[S$2._createDataChannel_1](label, dataChannelDict_1);
      }
      return this[S$2._createDataChannel_2](label);
    }
    [S$2._createDataChannel_1](...args) {
      return this.createDataChannel.apply(this, args);
    }
    [S$2._createDataChannel_2](...args) {
      return this.createDataChannel.apply(this, args);
    }
    [S$2.$createOffer](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T.RtcSessionDescription(), this.createOffer(options_dict));
    }
    [S$2.$getLocalStreams](...args) {
      return this.getLocalStreams.apply(this, args);
    }
    [S$2.$getReceivers](...args) {
      return this.getReceivers.apply(this, args);
    }
    [S$2.$getRemoteStreams](...args) {
      return this.getRemoteStreams.apply(this, args);
    }
    [S$2.$getSenders](...args) {
      return this.getSenders.apply(this, args);
    }
    [S$2.$getStats]() {
      return js_util.promiseToFuture(T.RtcStatsReport(), this.getStats());
    }
    [S$2.$removeStream](...args) {
      return this.removeStream.apply(this, args);
    }
    [S$1.$removeTrack](...args) {
      return this.removeTrack.apply(this, args);
    }
    [S$2.$setConfiguration](configuration) {
      if (configuration == null) dart.nullFailed(I[166], 27102, 29, "configuration");
      let configuration_1 = html_common.convertDartToNative_Dictionary(configuration);
      this[S$2._setConfiguration_1](configuration_1);
      return;
    }
    [S$2._setConfiguration_1](...args) {
      return this.setConfiguration.apply(this, args);
    }
    [S$2.$setLocalDescription](description) {
      if (description == null) dart.nullFailed(I[166], 27111, 34, "description");
      let description_dict = html_common.convertDartToNative_Dictionary(description);
      return js_util.promiseToFuture(T$.dynamic(), this.setLocalDescription(description_dict));
    }
    [S$2.$setRemoteDescription](description) {
      if (description == null) dart.nullFailed(I[166], 27117, 35, "description");
      let description_dict = html_common.convertDartToNative_Dictionary(description);
      return js_util.promiseToFuture(T$.dynamic(), this.setRemoteDescription(description_dict));
    }
    get [S$2.$onAddStream]() {
      return html$.RtcPeerConnection.addStreamEvent.forTarget(this);
    }
    get [S$2.$onConnectionStateChange]() {
      return html$.RtcPeerConnection.connectionStateChangeEvent.forTarget(this);
    }
    get [S$2.$onDataChannel]() {
      return html$.RtcPeerConnection.dataChannelEvent.forTarget(this);
    }
    get [S$2.$onIceCandidate]() {
      return html$.RtcPeerConnection.iceCandidateEvent.forTarget(this);
    }
    get [S$2.$onIceConnectionStateChange]() {
      return html$.RtcPeerConnection.iceConnectionStateChangeEvent.forTarget(this);
    }
    get [S$2.$onNegotiationNeeded]() {
      return html$.RtcPeerConnection.negotiationNeededEvent.forTarget(this);
    }
    get [S$2.$onRemoveStream]() {
      return html$.RtcPeerConnection.removeStreamEvent.forTarget(this);
    }
    get [S$2.$onSignalingStateChange]() {
      return html$.RtcPeerConnection.signalingStateChangeEvent.forTarget(this);
    }
    get [S$2.$onTrack]() {
      return html$.RtcPeerConnection.trackEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.RtcPeerConnection, ["html|RtcPeerConnection"]);
  dart.setMethodSignature(html$.RtcPeerConnection, () => dart.global.Object.setPrototypeOf({
    [S$2.$getLegacyStats]: T.MediaStreamTrackNToFutureOfRtcStatsResponse(),
    [S$2._getStats]: T.FnAndMediaStreamTrackNToFuture(),
    [S$2.$addIceCandidate]: T.ObjectAndFnAndFnToFuture(),
    [S$2.$addStream]: T.MediaStreamNAndMapNTovoid(),
    [S$2._addStream_1]: T.MediaStreamNAnddynamicTovoid(),
    [S$2._addStream_2]: T.MediaStreamNTovoid(),
    [S$1.$addTrack]: T.MediaStreamTrackAndMediaStreamToRtcRtpSender(),
    [S.$close]: T$.VoidTovoid(),
    [S$2.$createAnswer]: T.MapNToFutureOfRtcSessionDescription(),
    [S$2.$createDtmfSender]: T.MediaStreamTrackToRtcDtmfSender(),
    [S$2.$createDataChannel]: T.StringAndMapNToRtcDataChannel(),
    [S$2._createDataChannel_1]: T.dynamicAnddynamicToRtcDataChannel(),
    [S$2._createDataChannel_2]: T.dynamicToRtcDataChannel(),
    [S$2.$createOffer]: T.MapNToFutureOfRtcSessionDescription(),
    [S$2.$getLocalStreams]: T.VoidToListOfMediaStream(),
    [S$2.$getReceivers]: T.VoidToListOfRtcRtpReceiver(),
    [S$2.$getRemoteStreams]: T.VoidToListOfMediaStream(),
    [S$2.$getSenders]: T.VoidToListOfRtcRtpSender(),
    [S$2.$getStats]: T.VoidToFutureOfRtcStatsReport(),
    [S$2.$removeStream]: T.MediaStreamNTovoid(),
    [S$1.$removeTrack]: T.RtcRtpSenderTovoid(),
    [S$2.$setConfiguration]: T$2.MapTovoid(),
    [S$2._setConfiguration_1]: T$.dynamicTovoid(),
    [S$2.$setLocalDescription]: T$5.MapToFuture(),
    [S$2.$setRemoteDescription]: T$5.MapToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.RtcPeerConnection))));
  dart.setStaticMethodSignature(html$.RtcPeerConnection, () => ['new', 'generateCertificate', '__']);
  dart.setGetterSignature(html$.RtcPeerConnection, () => dart.global.Object.setPrototypeOf({
    [S$2.$connectionState]: T$.StringN(),
    [S$2.$iceConnectionState]: T$.StringN(),
    [S$2.$iceGatheringState]: T$.StringN(),
    [S$2.$localDescription]: T.RtcSessionDescriptionN(),
    [S$2.$remoteDescription]: T.RtcSessionDescriptionN(),
    [S$2.$signalingState]: T$.StringN(),
    [S$2.$onAddStream]: T.StreamOfMediaStreamEvent(),
    [S$2.$onConnectionStateChange]: T$3.StreamOfEvent(),
    [S$2.$onDataChannel]: T.StreamOfRtcDataChannelEvent(),
    [S$2.$onIceCandidate]: T.StreamOfRtcPeerConnectionIceEvent(),
    [S$2.$onIceConnectionStateChange]: T$3.StreamOfEvent(),
    [S$2.$onNegotiationNeeded]: T$3.StreamOfEvent(),
    [S$2.$onRemoveStream]: T.StreamOfMediaStreamEvent(),
    [S$2.$onSignalingStateChange]: T$3.StreamOfEvent(),
    [S$2.$onTrack]: T.StreamOfRtcTrackEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcPeerConnection))));
  dart.setStaticGetterSignature(html$.RtcPeerConnection, () => ['supported']);
  dart.setLibraryUri(html$.RtcPeerConnection, I[167]);
  dart.setStaticFieldSignature(html$.RtcPeerConnection, () => ['addStreamEvent', 'connectionStateChangeEvent', 'dataChannelEvent', 'iceCandidateEvent', 'iceConnectionStateChangeEvent', 'negotiationNeededEvent', 'removeStreamEvent', 'signalingStateChangeEvent', 'trackEvent']);
  dart.defineLazy(html$.RtcPeerConnection, {
    /*html$.RtcPeerConnection.addStreamEvent*/get addStreamEvent() {
      return C[405] || CT.C405;
    },
    /*html$.RtcPeerConnection.connectionStateChangeEvent*/get connectionStateChangeEvent() {
      return C[406] || CT.C406;
    },
    /*html$.RtcPeerConnection.dataChannelEvent*/get dataChannelEvent() {
      return C[407] || CT.C407;
    },
    /*html$.RtcPeerConnection.iceCandidateEvent*/get iceCandidateEvent() {
      return C[408] || CT.C408;
    },
    /*html$.RtcPeerConnection.iceConnectionStateChangeEvent*/get iceConnectionStateChangeEvent() {
      return C[409] || CT.C409;
    },
    /*html$.RtcPeerConnection.negotiationNeededEvent*/get negotiationNeededEvent() {
      return C[410] || CT.C410;
    },
    /*html$.RtcPeerConnection.removeStreamEvent*/get removeStreamEvent() {
      return C[411] || CT.C411;
    },
    /*html$.RtcPeerConnection.signalingStateChangeEvent*/get signalingStateChangeEvent() {
      return C[412] || CT.C412;
    },
    /*html$.RtcPeerConnection.trackEvent*/get trackEvent() {
      return C[413] || CT.C413;
    }
  }, false);
  dart.registerExtension("RTCPeerConnection", html$.RtcPeerConnection);
  dart.registerExtension("webkitRTCPeerConnection", html$.RtcPeerConnection);
  dart.registerExtension("mozRTCPeerConnection", html$.RtcPeerConnection);
  html$.RtcPeerConnectionIceEvent = class RtcPeerConnectionIceEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.RtcPeerConnectionIceEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 27168, 44, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.RtcPeerConnectionIceEvent._create_1(type, eventInitDict_1);
      }
      return html$.RtcPeerConnectionIceEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 27168, 44, "type");
      return html$.RtcPeerConnectionIceEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new RTCPeerConnectionIceEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new RTCPeerConnectionIceEvent(type);
    }
    get [S$2.$candidate]() {
      return this.candidate;
    }
  };
  dart.addRtiResources(html$.RtcPeerConnectionIceEvent, ["html|RtcPeerConnectionIceEvent"]);
  dart.setStaticMethodSignature(html$.RtcPeerConnectionIceEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.RtcPeerConnectionIceEvent, () => dart.global.Object.setPrototypeOf({[S$2.$candidate]: T.RtcIceCandidateN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcPeerConnectionIceEvent))));
  dart.setLibraryUri(html$.RtcPeerConnectionIceEvent, I[167]);
  dart.registerExtension("RTCPeerConnectionIceEvent", html$.RtcPeerConnectionIceEvent);
  html$.RtcRtpContributingSource = class RtcRtpContributingSource extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.RtcRtpContributingSource.__();
    }
    get [S.$source]() {
      return this.source;
    }
    get [S$.$timestamp]() {
      return this.timestamp;
    }
  };
  dart.addRtiResources(html$.RtcRtpContributingSource, ["html|RtcRtpContributingSource"]);
  dart.setStaticMethodSignature(html$.RtcRtpContributingSource, () => ['__']);
  dart.setGetterSignature(html$.RtcRtpContributingSource, () => dart.global.Object.setPrototypeOf({
    [S.$source]: T$.intN(),
    [S$.$timestamp]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcRtpContributingSource))));
  dart.setLibraryUri(html$.RtcRtpContributingSource, I[167]);
  dart.registerExtension("RTCRtpContributingSource", html$.RtcRtpContributingSource);
  html$.RtcRtpReceiver = class RtcRtpReceiver extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.RtcRtpReceiver.__();
    }
    get [S$1.$track]() {
      return this.track;
    }
    [S$2.$getContributingSources](...args) {
      return this.getContributingSources.apply(this, args);
    }
  };
  dart.addRtiResources(html$.RtcRtpReceiver, ["html|RtcRtpReceiver"]);
  dart.setMethodSignature(html$.RtcRtpReceiver, () => dart.global.Object.setPrototypeOf({[S$2.$getContributingSources]: T.VoidToListOfRtcRtpContributingSource()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.RtcRtpReceiver))));
  dart.setStaticMethodSignature(html$.RtcRtpReceiver, () => ['__']);
  dart.setGetterSignature(html$.RtcRtpReceiver, () => dart.global.Object.setPrototypeOf({[S$1.$track]: T$5.MediaStreamTrackN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcRtpReceiver))));
  dart.setLibraryUri(html$.RtcRtpReceiver, I[167]);
  dart.registerExtension("RTCRtpReceiver", html$.RtcRtpReceiver);
  html$.RtcRtpSender = class RtcRtpSender extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.RtcRtpSender.__();
    }
    get [S$1.$track]() {
      return this.track;
    }
  };
  dart.addRtiResources(html$.RtcRtpSender, ["html|RtcRtpSender"]);
  dart.setStaticMethodSignature(html$.RtcRtpSender, () => ['__']);
  dart.setGetterSignature(html$.RtcRtpSender, () => dart.global.Object.setPrototypeOf({[S$1.$track]: T$5.MediaStreamTrackN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcRtpSender))));
  dart.setLibraryUri(html$.RtcRtpSender, I[167]);
  dart.registerExtension("RTCRtpSender", html$.RtcRtpSender);
  html$.RtcSessionDescription = class RtcSessionDescription extends _interceptors.JavaScriptObject {
    static new(dictionary) {
      if (dictionary == null) dart.nullFailed(I[166], 27235, 37, "dictionary");
      let constructorName = window.RTCSessionDescription;
      return new constructorName(html_common.convertDartToNative_SerializedScriptValue(dictionary));
    }
    static ['_#new#tearOff'](dictionary) {
      if (dictionary == null) dart.nullFailed(I[166], 27235, 37, "dictionary");
      return html$.RtcSessionDescription.new(dictionary);
    }
    static ['_#_#tearOff']() {
      return html$.RtcSessionDescription.__();
    }
    get [S$2.$sdp]() {
      return this.sdp;
    }
    set [S$2.$sdp](value) {
      this.sdp = value;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
  };
  dart.addRtiResources(html$.RtcSessionDescription, ["html|RtcSessionDescription"]);
  dart.setStaticMethodSignature(html$.RtcSessionDescription, () => ['new', '__']);
  dart.setGetterSignature(html$.RtcSessionDescription, () => dart.global.Object.setPrototypeOf({
    [S$2.$sdp]: T$.StringN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcSessionDescription))));
  dart.setSetterSignature(html$.RtcSessionDescription, () => dart.global.Object.setPrototypeOf({
    [S$2.$sdp]: T$.StringN(),
    [S.$type]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.RtcSessionDescription))));
  dart.setLibraryUri(html$.RtcSessionDescription, I[167]);
  dart.registerExtension("RTCSessionDescription", html$.RtcSessionDescription);
  dart.registerExtension("mozRTCSessionDescription", html$.RtcSessionDescription);
  const JavaScriptObject_MapBase$36$0 = class JavaScriptObject_MapBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_MapBase$36$0.new = function() {
    G.MapBaseOfString$dynamic().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_MapBase$36$0).new.call(this);
  }).prototype = JavaScriptObject_MapBase$36$0.prototype;
  dart.applyMixin(JavaScriptObject_MapBase$36$0, G.MapBaseOfString$dynamic());
  html$.RtcStatsReport = class RtcStatsReport extends JavaScriptObject_MapBase$36$0 {
    static ['_#_#tearOff']() {
      return html$.RtcStatsReport.__();
    }
    [S$1._getItem](key) {
      if (key == null) dart.nullFailed(I[166], 27264, 24, "key");
      return html_common.convertNativeToDart_Dictionary(this.get(key));
    }
    [$addAll](other) {
      T$2.MapOfString$dynamic()[_as](other);
      if (other == null) dart.nullFailed(I[166], 27267, 36, "other");
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$containsValue](value) {
      return this[$values][$any](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 27271, 52, "e");
        return dart.equals(e, value);
      }, T.MapTobool()));
    }
    [$containsKey](key) {
      return this[S$1._getItem](T$.String()[_as](key)) != null;
    }
    [$_get](key) {
      return this[S$1._getItem](T$.String()[_as](key));
    }
    [$forEach](f) {
      if (f == null) dart.nullFailed(I[166], 27277, 21, "f");
      let entries = this.entries();
      while (true) {
        let entry = entries.next();
        if (entry.done) return;
        f(entry.value[0], html_common.convertNativeToDart_Dictionary(entry.value[1]));
      }
    }
    get [$keys]() {
      let keys = G.JSArrayOfString().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 27289, 14, "k");
        return keys[$add](k);
      }, T$2.StringAnddynamicTovoid()));
      return keys;
    }
    get [$values]() {
      let values = G$.JSArrayOfMap().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 27295, 14, "k");
        return values[$add](T$.Map()[_as](v));
      }, T$2.StringAnddynamicTovoid()));
      return values;
    }
    get [$length]() {
      return this.size;
    }
    get [$isEmpty]() {
      return this[$length] === 0;
    }
    get [$isNotEmpty]() {
      return !dart.test(this[$isEmpty]);
    }
    [$_set](key, value$) {
      let value = value$;
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 27305, 28, "key");
      dart.throw(new core.UnsupportedError.new("Not supported"));
      return value$;
    }
    [$putIfAbsent](key, ifAbsent) {
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 27309, 30, "key");
      T$.VoidTodynamic()[_as](ifAbsent);
      if (ifAbsent == null) dart.nullFailed(I[166], 27309, 43, "ifAbsent");
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$remove](key) {
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$clear]() {
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
  };
  dart.addRtiResources(html$.RtcStatsReport, ["html|RtcStatsReport"]);
  dart.setMethodSignature(html$.RtcStatsReport, () => dart.global.Object.setPrototypeOf({
    [S$1._getItem]: T.StringToMapN(),
    [$containsValue]: T$.dynamicTobool(),
    [$containsKey]: T$.dynamicTobool(),
    [$_get]: T.dynamicToMapN(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    [$remove]: T$.dynamicToString(),
    [$clear]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.RtcStatsReport))));
  dart.setStaticMethodSignature(html$.RtcStatsReport, () => ['__']);
  dart.setGetterSignature(html$.RtcStatsReport, () => dart.global.Object.setPrototypeOf({
    [$keys]: T$0.IterableOfString(),
    [$values]: T.IterableOfMap()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcStatsReport))));
  dart.setLibraryUri(html$.RtcStatsReport, I[167]);
  dart.registerExtension("RTCStatsReport", html$.RtcStatsReport);
  html$.RtcStatsResponse = class RtcStatsResponse extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.RtcStatsResponse.__();
    }
    [S$1.$namedItem](...args) {
      return this.namedItem.apply(this, args);
    }
    [S.$result](...args) {
      return this.result.apply(this, args);
    }
  };
  dart.addRtiResources(html$.RtcStatsResponse, ["html|RtcStatsResponse"]);
  dart.setMethodSignature(html$.RtcStatsResponse, () => dart.global.Object.setPrototypeOf({
    [S$1.$namedItem]: T.StringNToRtcLegacyStatsReport(),
    [S.$result]: T.VoidToListOfRtcLegacyStatsReport()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.RtcStatsResponse))));
  dart.setStaticMethodSignature(html$.RtcStatsResponse, () => ['__']);
  dart.setLibraryUri(html$.RtcStatsResponse, I[167]);
  dart.registerExtension("RTCStatsResponse", html$.RtcStatsResponse);
  html$.RtcTrackEvent = class RtcTrackEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.RtcTrackEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 27347, 32, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 27347, 42, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.RtcTrackEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 27347, 32, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 27347, 42, "eventInitDict");
      return html$.RtcTrackEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new RTCTrackEvent(type, eventInitDict);
    }
    get [S$2.$receiver]() {
      return this.receiver;
    }
    get [S$2.$streams]() {
      return this.streams;
    }
    get [S$1.$track]() {
      return this.track;
    }
  };
  dart.addRtiResources(html$.RtcTrackEvent, ["html|RtcTrackEvent"]);
  dart.setStaticMethodSignature(html$.RtcTrackEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.RtcTrackEvent, () => dart.global.Object.setPrototypeOf({
    [S$2.$receiver]: T.RtcRtpReceiverN(),
    [S$2.$streams]: T.ListNOfMediaStream(),
    [S$1.$track]: T$5.MediaStreamTrackN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.RtcTrackEvent))));
  dart.setLibraryUri(html$.RtcTrackEvent, I[167]);
  dart.registerExtension("RTCTrackEvent", html$.RtcTrackEvent);
  html$.Screen = class Screen extends _interceptors.JavaScriptObject {
    get [S$2.$available]() {
      return new (G.RectangleOfnum()).new(dart.nullCheck(this[S$2._availLeft]), dart.nullCheck(this[S$2._availTop]), dart.nullCheck(this[S$2._availWidth]), dart.nullCheck(this[S$2._availHeight]));
    }
    static ['_#_#tearOff']() {
      return html$.Screen.__();
    }
    get [S$2._availHeight]() {
      return this.availHeight;
    }
    get [S$2._availLeft]() {
      return this.availLeft;
    }
    get [S$2._availTop]() {
      return this.availTop;
    }
    get [S$2._availWidth]() {
      return this.availWidth;
    }
    get [S$2.$colorDepth]() {
      return this.colorDepth;
    }
    get [$height]() {
      return this.height;
    }
    get [S$2.$keepAwake]() {
      return this.keepAwake;
    }
    set [S$2.$keepAwake](value) {
      this.keepAwake = value;
    }
    get [S$.$orientation]() {
      return this.orientation;
    }
    get [S$2.$pixelDepth]() {
      return this.pixelDepth;
    }
    get [$width]() {
      return this.width;
    }
  };
  dart.addRtiResources(html$.Screen, ["html|Screen"]);
  dart.setStaticMethodSignature(html$.Screen, () => ['__']);
  dart.setGetterSignature(html$.Screen, () => dart.global.Object.setPrototypeOf({
    [S$2.$available]: T$3.RectangleOfnum(),
    [S$2._availHeight]: T$.intN(),
    [S$2._availLeft]: T$.intN(),
    [S$2._availTop]: T$.intN(),
    [S$2._availWidth]: T$.intN(),
    [S$2.$colorDepth]: T$.intN(),
    [$height]: T$.intN(),
    [S$2.$keepAwake]: T$.boolN(),
    [S$.$orientation]: T.ScreenOrientationN(),
    [S$2.$pixelDepth]: T$.intN(),
    [$width]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Screen))));
  dart.setSetterSignature(html$.Screen, () => dart.global.Object.setPrototypeOf({[S$2.$keepAwake]: T$.boolN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Screen))));
  dart.setLibraryUri(html$.Screen, I[167]);
  dart.registerExtension("Screen", html$.Screen);
  html$.ScreenOrientation = class ScreenOrientation extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.ScreenOrientation.__();
    }
    get [S$.$angle]() {
      return this.angle;
    }
    get [S.$type]() {
      return this.type;
    }
    [S$2.$lock](orientation) {
      if (orientation == null) dart.nullFailed(I[166], 27417, 22, "orientation");
      return js_util.promiseToFuture(T$.dynamic(), this.lock(orientation));
    }
    [S$2.$unlock](...args) {
      return this.unlock.apply(this, args);
    }
    get [S.$onChange]() {
      return html$.ScreenOrientation.changeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.ScreenOrientation, ["html|ScreenOrientation"]);
  dart.setMethodSignature(html$.ScreenOrientation, () => dart.global.Object.setPrototypeOf({
    [S$2.$lock]: T$4.StringToFuture(),
    [S$2.$unlock]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ScreenOrientation))));
  dart.setStaticMethodSignature(html$.ScreenOrientation, () => ['__']);
  dart.setGetterSignature(html$.ScreenOrientation, () => dart.global.Object.setPrototypeOf({
    [S$.$angle]: T$.intN(),
    [S.$type]: T$.StringN(),
    [S.$onChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ScreenOrientation))));
  dart.setLibraryUri(html$.ScreenOrientation, I[167]);
  dart.setStaticFieldSignature(html$.ScreenOrientation, () => ['changeEvent']);
  dart.defineLazy(html$.ScreenOrientation, {
    /*html$.ScreenOrientation.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    }
  }, false);
  dart.registerExtension("ScreenOrientation", html$.ScreenOrientation);
  html$.ScriptElement = class ScriptElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ScriptElement.__();
    }
    static new() {
      return html$.document.createElement("script");
    }
    static ['_#new#tearOff']() {
      return html$.ScriptElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.ScriptElement.created();
    }
    get [S$1.$async]() {
      return this.async;
    }
    set [S$1.$async](value) {
      this.async = value;
    }
    get [S$2.$charset]() {
      return this.charset;
    }
    set [S$2.$charset](value) {
      this.charset = value;
    }
    get [S$.$crossOrigin]() {
      return this.crossOrigin;
    }
    set [S$.$crossOrigin](value) {
      this.crossOrigin = value;
    }
    get [S$2.$defer]() {
      return this.defer;
    }
    set [S$2.$defer](value) {
      this.defer = value;
    }
    get [S$1.$integrity]() {
      return this.integrity;
    }
    set [S$1.$integrity](value) {
      this.integrity = value;
    }
    get [S$2.$noModule]() {
      return this.noModule;
    }
    set [S$2.$noModule](value) {
      this.noModule = value;
    }
    get [S$.$src]() {
      return this.src;
    }
    set [S$.$src](value) {
      this.src = value;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
  };
  (html$.ScriptElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ScriptElement).created.call(this);
    ;
  }).prototype = html$.ScriptElement.prototype;
  dart.addRtiResources(html$.ScriptElement, ["html|ScriptElement"]);
  dart.setStaticMethodSignature(html$.ScriptElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.ScriptElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$async]: T$.boolN(),
    [S$2.$charset]: T$.String(),
    [S$.$crossOrigin]: T$.StringN(),
    [S$2.$defer]: T$.boolN(),
    [S$1.$integrity]: T$.StringN(),
    [S$2.$noModule]: T$.boolN(),
    [S$.$src]: T$.String(),
    [S.$type]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ScriptElement))));
  dart.setSetterSignature(html$.ScriptElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$async]: T$.boolN(),
    [S$2.$charset]: T$.String(),
    [S$.$crossOrigin]: T$.StringN(),
    [S$2.$defer]: T$.boolN(),
    [S$1.$integrity]: T$.StringN(),
    [S$2.$noModule]: T$.boolN(),
    [S$.$src]: T$.String(),
    [S.$type]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.ScriptElement))));
  dart.setLibraryUri(html$.ScriptElement, I[167]);
  dart.registerExtension("HTMLScriptElement", html$.ScriptElement);
  html$.ScrollState = class ScrollState$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ScrollState.__();
    }
    static new(scrollStateInit = null) {
      if (scrollStateInit != null) {
        let scrollStateInit_1 = html_common.convertDartToNative_Dictionary(scrollStateInit);
        return html$.ScrollState._create_1(scrollStateInit_1);
      }
      return html$.ScrollState._create_2();
    }
    static ['_#new#tearOff'](scrollStateInit = null) {
      return html$.ScrollState.new(scrollStateInit);
    }
    static _create_1(scrollStateInit) {
      return new ScrollState(scrollStateInit);
    }
    static _create_2() {
      return new ScrollState();
    }
    get [S$2.$deltaGranularity]() {
      return this.deltaGranularity;
    }
    get [S$2.$deltaX]() {
      return this.deltaX;
    }
    get [S$2.$deltaY]() {
      return this.deltaY;
    }
    get [S$2.$fromUserInput]() {
      return this.fromUserInput;
    }
    get [S$2.$inInertialPhase]() {
      return this.inInertialPhase;
    }
    get [S$2.$isBeginning]() {
      return this.isBeginning;
    }
    get [S$2.$isDirectManipulation]() {
      return this.isDirectManipulation;
    }
    get [S$2.$isEnding]() {
      return this.isEnding;
    }
    get [S$2.$positionX]() {
      return this.positionX;
    }
    get [S$2.$positionY]() {
      return this.positionY;
    }
    get [S$2.$velocityX]() {
      return this.velocityX;
    }
    get [S$2.$velocityY]() {
      return this.velocityY;
    }
    [S$2.$consumeDelta](...args) {
      return this.consumeDelta.apply(this, args);
    }
    [S$2.$distributeToScrollChainDescendant](...args) {
      return this.distributeToScrollChainDescendant.apply(this, args);
    }
  };
  dart.addRtiResources(html$.ScrollState, ["html|ScrollState"]);
  dart.setMethodSignature(html$.ScrollState, () => dart.global.Object.setPrototypeOf({
    [S$2.$consumeDelta]: T$4.numAndnumTovoid(),
    [S$2.$distributeToScrollChainDescendant]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ScrollState))));
  dart.setStaticMethodSignature(html$.ScrollState, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.ScrollState, () => dart.global.Object.setPrototypeOf({
    [S$2.$deltaGranularity]: T$3.numN(),
    [S$2.$deltaX]: T$3.numN(),
    [S$2.$deltaY]: T$3.numN(),
    [S$2.$fromUserInput]: T$.boolN(),
    [S$2.$inInertialPhase]: T$.boolN(),
    [S$2.$isBeginning]: T$.boolN(),
    [S$2.$isDirectManipulation]: T$.boolN(),
    [S$2.$isEnding]: T$.boolN(),
    [S$2.$positionX]: T$.intN(),
    [S$2.$positionY]: T$.intN(),
    [S$2.$velocityX]: T$3.numN(),
    [S$2.$velocityY]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ScrollState))));
  dart.setLibraryUri(html$.ScrollState, I[167]);
  dart.registerExtension("ScrollState", html$.ScrollState);
  html$.ScrollTimeline = class ScrollTimeline$ extends html$.AnimationTimeline {
    static ['_#_#tearOff']() {
      return html$.ScrollTimeline.__();
    }
    static new(options = null) {
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return html$.ScrollTimeline._create_1(options_1);
      }
      return html$.ScrollTimeline._create_2();
    }
    static ['_#new#tearOff'](options = null) {
      return html$.ScrollTimeline.new(options);
    }
    static _create_1(options) {
      return new ScrollTimeline(options);
    }
    static _create_2() {
      return new ScrollTimeline();
    }
    get [S$.$orientation]() {
      return this.orientation;
    }
    get [S$2.$scrollSource]() {
      return this.scrollSource;
    }
    get [S$2.$timeRange]() {
      return this.timeRange;
    }
  };
  dart.addRtiResources(html$.ScrollTimeline, ["html|ScrollTimeline"]);
  dart.setStaticMethodSignature(html$.ScrollTimeline, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.ScrollTimeline, () => dart.global.Object.setPrototypeOf({
    [S$.$orientation]: T$.StringN(),
    [S$2.$scrollSource]: T$3.ElementN(),
    [S$2.$timeRange]: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ScrollTimeline))));
  dart.setLibraryUri(html$.ScrollTimeline, I[167]);
  dart.registerExtension("ScrollTimeline", html$.ScrollTimeline);
  html$.SecurityPolicyViolationEvent = class SecurityPolicyViolationEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.SecurityPolicyViolationEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 27576, 47, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.SecurityPolicyViolationEvent._create_1(type, eventInitDict_1);
      }
      return html$.SecurityPolicyViolationEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 27576, 47, "type");
      return html$.SecurityPolicyViolationEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new SecurityPolicyViolationEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new SecurityPolicyViolationEvent(type);
    }
    get [S$2.$blockedUri]() {
      return this.blockedURI;
    }
    get [S$2.$columnNumber]() {
      return this.columnNumber;
    }
    get [S$2.$disposition]() {
      return this.disposition;
    }
    get [S$2.$documentUri]() {
      return this.documentURI;
    }
    get [S$2.$effectiveDirective]() {
      return this.effectiveDirective;
    }
    get [S$0.$lineNumber]() {
      return this.lineNumber;
    }
    get [S$2.$originalPolicy]() {
      return this.originalPolicy;
    }
    get [S$1.$referrer]() {
      return this.referrer;
    }
    get [S$2.$sample]() {
      return this.sample;
    }
    get [S$0.$sourceFile]() {
      return this.sourceFile;
    }
    get [S$2.$statusCode]() {
      return this.statusCode;
    }
    get [S$2.$violatedDirective]() {
      return this.violatedDirective;
    }
  };
  dart.addRtiResources(html$.SecurityPolicyViolationEvent, ["html|SecurityPolicyViolationEvent"]);
  dart.setStaticMethodSignature(html$.SecurityPolicyViolationEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.SecurityPolicyViolationEvent, () => dart.global.Object.setPrototypeOf({
    [S$2.$blockedUri]: T$.StringN(),
    [S$2.$columnNumber]: T$.intN(),
    [S$2.$disposition]: T$.StringN(),
    [S$2.$documentUri]: T$.StringN(),
    [S$2.$effectiveDirective]: T$.StringN(),
    [S$0.$lineNumber]: T$.intN(),
    [S$2.$originalPolicy]: T$.StringN(),
    [S$1.$referrer]: T$.StringN(),
    [S$2.$sample]: T$.StringN(),
    [S$0.$sourceFile]: T$.StringN(),
    [S$2.$statusCode]: T$.intN(),
    [S$2.$violatedDirective]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SecurityPolicyViolationEvent))));
  dart.setLibraryUri(html$.SecurityPolicyViolationEvent, I[167]);
  dart.registerExtension("SecurityPolicyViolationEvent", html$.SecurityPolicyViolationEvent);
  html$.SelectElement = class SelectElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.SelectElement.__();
    }
    static ['_#new#tearOff']() {
      return html$.SelectElement.new();
    }
    static new() {
      return html$.document.createElement("select");
    }
    static ['_#created#tearOff']() {
      return new html$.SelectElement.created();
    }
    get [S$.$autofocus]() {
      return this.autofocus;
    }
    set [S$.$autofocus](value) {
      this.autofocus = value;
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$form]() {
      return this.form;
    }
    get [S$.$labels]() {
      return this.labels;
    }
    get [$length]() {
      return this.length;
    }
    set [$length](value) {
      this.length = value;
    }
    get [S$1.$multiple]() {
      return this.multiple;
    }
    set [S$1.$multiple](value) {
      this.multiple = value;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S$.$required]() {
      return this.required;
    }
    set [S$.$required](value) {
      this.required = value;
    }
    get [S$2.$selectedIndex]() {
      return this.selectedIndex;
    }
    set [S$2.$selectedIndex](value) {
      this.selectedIndex = value;
    }
    get [S$.$size]() {
      return this.size;
    }
    set [S$.$size](value) {
      this.size = value;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S$.$validationMessage]() {
      return this.validationMessage;
    }
    get [S$.$validity]() {
      return this.validity;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
    get [S$.$willValidate]() {
      return this.willValidate;
    }
    [S$.__setter__](...args) {
      return this.__setter__.apply(this, args);
    }
    [$add](...args) {
      return this.add.apply(this, args);
    }
    [S$.$checkValidity](...args) {
      return this.checkValidity.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [S$1.$namedItem](...args) {
      return this.namedItem.apply(this, args);
    }
    [S$.$reportValidity](...args) {
      return this.reportValidity.apply(this, args);
    }
    [S$.$setCustomValidity](...args) {
      return this.setCustomValidity.apply(this, args);
    }
    get [S$0.$options]() {
      let options = this[S.$querySelectorAll](T.OptionElement(), "option");
      return new (G$.UnmodifiableListViewOfOptionElement()).new(T.IterableOfOptionElement()[_as](dart.dsend(options, 'toList', [])));
    }
    get [S$2.$selectedOptions]() {
      if (dart.nullCheck(this.multiple)) {
        let options = this[S$0.$options][$where](dart.fn(o => {
          if (o == null) dart.nullFailed(I[166], 27717, 41, "o");
          return o.selected;
        }, T.OptionElementTobool()))[$toList]();
        return new (G$.UnmodifiableListViewOfOptionElement()).new(options);
      } else {
        let i = dart.nullCheck(this.selectedIndex);
        return i < 0 ? G$.JSArrayOfOptionElement().of([]) : G$.JSArrayOfOptionElement().of([this[S$0.$options][$_get](i)]);
      }
    }
  };
  (html$.SelectElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.SelectElement).created.call(this);
    ;
  }).prototype = html$.SelectElement.prototype;
  dart.addRtiResources(html$.SelectElement, ["html|SelectElement"]);
  dart.setMethodSignature(html$.SelectElement, () => dart.global.Object.setPrototypeOf({
    [S$.__setter__]: T.intAndOptionElementNTovoid(),
    [$add]: T$3.ObjectAndObjectNTovoid(),
    [S$.$checkValidity]: T$.VoidTobool(),
    [S$.$item]: T$5.intToElementN(),
    [S$1.$namedItem]: T.StringToOptionElementN(),
    [S$.$reportValidity]: T$.VoidTobool(),
    [S$.$setCustomValidity]: T$.StringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SelectElement))));
  dart.setStaticMethodSignature(html$.SelectElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.SelectElement, () => dart.global.Object.setPrototypeOf({
    [S$.$autofocus]: T$.bool(),
    [S$.$disabled]: T$.bool(),
    [S$.$form]: T$4.FormElementN(),
    [S$.$labels]: T$4.ListNOfNode(),
    [$length]: T$.intN(),
    [S$1.$multiple]: T$.boolN(),
    [$name]: T$.StringN(),
    [S$.$required]: T$.boolN(),
    [S$2.$selectedIndex]: T$.intN(),
    [S$.$size]: T$.intN(),
    [S.$type]: T$.String(),
    [S$.$validationMessage]: T$.String(),
    [S$.$validity]: T$4.ValidityState(),
    [S.$value]: T$.StringN(),
    [S$.$willValidate]: T$.bool(),
    [S$0.$options]: T.ListOfOptionElement(),
    [S$2.$selectedOptions]: T.ListOfOptionElement()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SelectElement))));
  dart.setSetterSignature(html$.SelectElement, () => dart.global.Object.setPrototypeOf({
    [S$.$autofocus]: T$.bool(),
    [S$.$disabled]: T$.bool(),
    [$length]: T$.intN(),
    [S$1.$multiple]: T$.boolN(),
    [$name]: T$.StringN(),
    [S$.$required]: T$.boolN(),
    [S$2.$selectedIndex]: T$.intN(),
    [S$.$size]: T$.intN(),
    [S.$value]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.SelectElement))));
  dart.setLibraryUri(html$.SelectElement, I[167]);
  dart.registerExtension("HTMLSelectElement", html$.SelectElement);
  html$.Selection = class Selection extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Selection.__();
    }
    get [S$2.$anchorNode]() {
      return this.anchorNode;
    }
    get [S$2.$anchorOffset]() {
      return this.anchorOffset;
    }
    get [S$2.$baseNode]() {
      return this.baseNode;
    }
    get [S$2.$baseOffset]() {
      return this.baseOffset;
    }
    get [S$2.$extentNode]() {
      return this.extentNode;
    }
    get [S$2.$extentOffset]() {
      return this.extentOffset;
    }
    get [S$2.$focusNode]() {
      return this.focusNode;
    }
    get [S$2.$focusOffset]() {
      return this.focusOffset;
    }
    get [S$2.$isCollapsed]() {
      return this.isCollapsed;
    }
    get [S$2.$rangeCount]() {
      return this.rangeCount;
    }
    get [S.$type]() {
      return this.type;
    }
    [S$2.$addRange](...args) {
      return this.addRange.apply(this, args);
    }
    [S$2.$collapse](...args) {
      return this.collapse.apply(this, args);
    }
    [S$2.$collapseToEnd](...args) {
      return this.collapseToEnd.apply(this, args);
    }
    [S$2.$collapseToStart](...args) {
      return this.collapseToStart.apply(this, args);
    }
    [S$2.$containsNode](...args) {
      return this.containsNode.apply(this, args);
    }
    [S$2.$deleteFromDocument](...args) {
      return this.deleteFromDocument.apply(this, args);
    }
    [S$2.$empty](...args) {
      return this.empty.apply(this, args);
    }
    [S$2.$extend](...args) {
      return this.extend.apply(this, args);
    }
    [S$2.$getRangeAt](...args) {
      return this.getRangeAt.apply(this, args);
    }
    [S$2.$modify](...args) {
      return this.modify.apply(this, args);
    }
    [S$2.$removeAllRanges](...args) {
      return this.removeAllRanges.apply(this, args);
    }
    [$removeRange](...args) {
      return this.removeRange.apply(this, args);
    }
    [S$2.$selectAllChildren](...args) {
      return this.selectAllChildren.apply(this, args);
    }
    [S$2.$setBaseAndExtent](...args) {
      return this.setBaseAndExtent.apply(this, args);
    }
    [S$2.$setPosition](...args) {
      return this.setPosition.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Selection, ["html|Selection"]);
  dart.setMethodSignature(html$.Selection, () => dart.global.Object.setPrototypeOf({
    [S$2.$addRange]: T.RangeTovoid(),
    [S$2.$collapse]: T.NodeNAndintNTovoid(),
    [S$2.$collapseToEnd]: T$.VoidTovoid(),
    [S$2.$collapseToStart]: T$.VoidTovoid(),
    [S$2.$containsNode]: T.NodeAndboolNTobool(),
    [S$2.$deleteFromDocument]: T$.VoidTovoid(),
    [S$2.$empty]: T$.VoidTovoid(),
    [S$2.$extend]: T.NodeAndintNTovoid(),
    [S$2.$getRangeAt]: T.intToRange(),
    [S$2.$modify]: T.StringNAndStringNAndStringNTovoid(),
    [S$2.$removeAllRanges]: T$.VoidTovoid(),
    [$removeRange]: T.RangeTovoid(),
    [S$2.$selectAllChildren]: T.NodeTovoid(),
    [S$2.$setBaseAndExtent]: T.NodeNAndintAndNodeN__Tovoid(),
    [S$2.$setPosition]: T.NodeNAndintNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Selection))));
  dart.setStaticMethodSignature(html$.Selection, () => ['__']);
  dart.setGetterSignature(html$.Selection, () => dart.global.Object.setPrototypeOf({
    [S$2.$anchorNode]: T$3.NodeN$2(),
    [S$2.$anchorOffset]: T$.intN(),
    [S$2.$baseNode]: T$3.NodeN$2(),
    [S$2.$baseOffset]: T$.intN(),
    [S$2.$extentNode]: T$3.NodeN$2(),
    [S$2.$extentOffset]: T$.intN(),
    [S$2.$focusNode]: T$3.NodeN$2(),
    [S$2.$focusOffset]: T$.intN(),
    [S$2.$isCollapsed]: T$.boolN(),
    [S$2.$rangeCount]: T$.intN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Selection))));
  dart.setLibraryUri(html$.Selection, I[167]);
  dart.registerExtension("Selection", html$.Selection);
  html$.SensorErrorEvent = class SensorErrorEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.SensorErrorEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 27826, 35, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 27826, 45, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.SensorErrorEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 27826, 35, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 27826, 45, "eventInitDict");
      return html$.SensorErrorEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new SensorErrorEvent(type, eventInitDict);
    }
    get [S.$error]() {
      return this.error;
    }
  };
  dart.addRtiResources(html$.SensorErrorEvent, ["html|SensorErrorEvent"]);
  dart.setStaticMethodSignature(html$.SensorErrorEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.SensorErrorEvent, () => dart.global.Object.setPrototypeOf({[S.$error]: T$3.DomExceptionN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SensorErrorEvent))));
  dart.setLibraryUri(html$.SensorErrorEvent, I[167]);
  dart.registerExtension("SensorErrorEvent", html$.SensorErrorEvent);
  html$.ServiceWorker = class ServiceWorker extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.ServiceWorker.__();
    }
    get [S$2.$scriptUrl]() {
      return this.scriptURL;
    }
    get [S$.$state]() {
      return this.state;
    }
    [S$.$postMessage](message, transfer = null) {
      if (transfer != null) {
        let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
        this[S$0._postMessage_1](message_1, transfer);
        return;
      }
      let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
      this[S$0._postMessage_2](message_1);
      return;
    }
    [S$0._postMessage_1](...args) {
      return this.postMessage.apply(this, args);
    }
    [S$0._postMessage_2](...args) {
      return this.postMessage.apply(this, args);
    }
    get [S.$onError]() {
      return html$.ServiceWorker.errorEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.ServiceWorker, ["html|ServiceWorker", "html|AbstractWorker", "_interceptors|JavaScriptObject", "html|EventTarget", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.ServiceWorker, () => dart.global.Object.setPrototypeOf({
    [S$.$postMessage]: T$4.dynamicAndListNOfObjectTovoid(),
    [S$0._postMessage_1]: T.dynamicAndListNOfObjectTovoid$1(),
    [S$0._postMessage_2]: T$.dynamicTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ServiceWorker))));
  dart.setStaticMethodSignature(html$.ServiceWorker, () => ['__']);
  dart.setGetterSignature(html$.ServiceWorker, () => dart.global.Object.setPrototypeOf({
    [S$2.$scriptUrl]: T$.StringN(),
    [S$.$state]: T$.StringN(),
    [S.$onError]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ServiceWorker))));
  dart.setLibraryUri(html$.ServiceWorker, I[167]);
  dart.setStaticFieldSignature(html$.ServiceWorker, () => ['errorEvent']);
  dart.defineLazy(html$.ServiceWorker, {
    /*html$.ServiceWorker.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    }
  }, false);
  dart.registerExtension("ServiceWorker", html$.ServiceWorker);
  html$.ServiceWorkerContainer = class ServiceWorkerContainer extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.ServiceWorkerContainer.__();
    }
    get [S$2.$controller]() {
      return this.controller;
    }
    get [S$.$ready]() {
      return js_util.promiseToFuture(T.ServiceWorkerRegistration(), this.ready);
    }
    [S$2.$getRegistration](documentURL = null) {
      return js_util.promiseToFuture(T.ServiceWorkerRegistration(), this.getRegistration(documentURL));
    }
    [S$2.$getRegistrations]() {
      return js_util.promiseToFuture(T$.List(), this.getRegistrations());
    }
    [S$2.$register](url, options = null) {
      if (url == null) dart.nullFailed(I[166], 27902, 53, "url");
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T.ServiceWorkerRegistration(), this.register(url, options_dict));
    }
    get [S$.$onMessage]() {
      return html$.ServiceWorkerContainer.messageEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.ServiceWorkerContainer, ["html|ServiceWorkerContainer"]);
  dart.setMethodSignature(html$.ServiceWorkerContainer, () => dart.global.Object.setPrototypeOf({
    [S$2.$getRegistration]: T.StringNToFutureOfServiceWorkerRegistration(),
    [S$2.$getRegistrations]: T$4.VoidToFutureOfList(),
    [S$2.$register]: T.StringAndMapNToFutureOfServiceWorkerRegistration()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ServiceWorkerContainer))));
  dart.setStaticMethodSignature(html$.ServiceWorkerContainer, () => ['__']);
  dart.setGetterSignature(html$.ServiceWorkerContainer, () => dart.global.Object.setPrototypeOf({
    [S$2.$controller]: T.ServiceWorkerN(),
    [S$.$ready]: T.FutureOfServiceWorkerRegistration(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ServiceWorkerContainer))));
  dart.setLibraryUri(html$.ServiceWorkerContainer, I[167]);
  dart.setStaticFieldSignature(html$.ServiceWorkerContainer, () => ['messageEvent']);
  dart.defineLazy(html$.ServiceWorkerContainer, {
    /*html$.ServiceWorkerContainer.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    }
  }, false);
  dart.registerExtension("ServiceWorkerContainer", html$.ServiceWorkerContainer);
  html$.ServiceWorkerGlobalScope = class ServiceWorkerGlobalScope extends html$.WorkerGlobalScope {
    static ['_#_#tearOff']() {
      return html$.ServiceWorkerGlobalScope.__();
    }
    get [S$2.$clients]() {
      return this.clients;
    }
    get [S$2.$registration]() {
      return this.registration;
    }
    [S$2.$skipWaiting]() {
      return js_util.promiseToFuture(T$.dynamic(), this.skipWaiting());
    }
    get [S$2.$onActivate]() {
      return html$.ServiceWorkerGlobalScope.activateEvent.forTarget(this);
    }
    get [S$2.$onFetch]() {
      return html$.ServiceWorkerGlobalScope.fetchEvent.forTarget(this);
    }
    get [S$2.$onForeignfetch]() {
      return html$.ServiceWorkerGlobalScope.foreignfetchEvent.forTarget(this);
    }
    get [S$2.$onInstall]() {
      return html$.ServiceWorkerGlobalScope.installEvent.forTarget(this);
    }
    get [S$.$onMessage]() {
      return html$.ServiceWorkerGlobalScope.messageEvent.forTarget(this);
    }
    static get instance() {
      return T.ServiceWorkerGlobalScope()[_as](html$._workerSelf);
    }
  };
  dart.addRtiResources(html$.ServiceWorkerGlobalScope, ["html|ServiceWorkerGlobalScope"]);
  dart.setMethodSignature(html$.ServiceWorkerGlobalScope, () => dart.global.Object.setPrototypeOf({[S$2.$skipWaiting]: T$.VoidToFuture()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ServiceWorkerGlobalScope))));
  dart.setStaticMethodSignature(html$.ServiceWorkerGlobalScope, () => ['__']);
  dart.setGetterSignature(html$.ServiceWorkerGlobalScope, () => dart.global.Object.setPrototypeOf({
    [S$2.$clients]: T.ClientsN(),
    [S$2.$registration]: T.ServiceWorkerRegistrationN(),
    [S$2.$onActivate]: T$3.StreamOfEvent(),
    [S$2.$onFetch]: T$3.StreamOfEvent(),
    [S$2.$onForeignfetch]: T.StreamOfForeignFetchEvent(),
    [S$2.$onInstall]: T$3.StreamOfEvent(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ServiceWorkerGlobalScope))));
  dart.setStaticGetterSignature(html$.ServiceWorkerGlobalScope, () => ['instance']);
  dart.setLibraryUri(html$.ServiceWorkerGlobalScope, I[167]);
  dart.setStaticFieldSignature(html$.ServiceWorkerGlobalScope, () => ['activateEvent', 'fetchEvent', 'foreignfetchEvent', 'installEvent', 'messageEvent']);
  dart.defineLazy(html$.ServiceWorkerGlobalScope, {
    /*html$.ServiceWorkerGlobalScope.activateEvent*/get activateEvent() {
      return C[414] || CT.C414;
    },
    /*html$.ServiceWorkerGlobalScope.fetchEvent*/get fetchEvent() {
      return C[415] || CT.C415;
    },
    /*html$.ServiceWorkerGlobalScope.foreignfetchEvent*/get foreignfetchEvent() {
      return C[416] || CT.C416;
    },
    /*html$.ServiceWorkerGlobalScope.installEvent*/get installEvent() {
      return C[417] || CT.C417;
    },
    /*html$.ServiceWorkerGlobalScope.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    }
  }, false);
  dart.registerExtension("ServiceWorkerGlobalScope", html$.ServiceWorkerGlobalScope);
  html$.ServiceWorkerRegistration = class ServiceWorkerRegistration extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.ServiceWorkerRegistration.__();
    }
    get [S$1.$active]() {
      return this.active;
    }
    get [S$2.$backgroundFetch]() {
      return this.backgroundFetch;
    }
    get [S$2.$installing]() {
      return this.installing;
    }
    get [S$2.$navigationPreload]() {
      return this.navigationPreload;
    }
    get [S$2.$paymentManager]() {
      return this.paymentManager;
    }
    get [S$2.$pushManager]() {
      return this.pushManager;
    }
    get [S$1.$scope]() {
      return this.scope;
    }
    get [S$2.$sync]() {
      return this.sync;
    }
    get [S$2.$waiting]() {
      return this.waiting;
    }
    [S$2.$getNotifications](filter = null) {
      let filter_dict = null;
      if (filter != null) {
        filter_dict = html_common.convertDartToNative_Dictionary(filter);
      }
      return js_util.promiseToFuture(T$.List(), this.getNotifications(filter_dict));
    }
    [S$2.$showNotification](title, options = null) {
      if (title == null) dart.nullFailed(I[166], 28003, 34, "title");
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.showNotification(title, options_dict));
    }
    [S$2.$unregister]() {
      return js_util.promiseToFuture(T$.bool(), this.unregister());
    }
    [$update]() {
      return js_util.promiseToFuture(T$.dynamic(), this.update());
    }
  };
  dart.addRtiResources(html$.ServiceWorkerRegistration, ["html|ServiceWorkerRegistration"]);
  dart.setMethodSignature(html$.ServiceWorkerRegistration, () => dart.global.Object.setPrototypeOf({
    [S$2.$getNotifications]: T$4.MapNToFutureOfList(),
    [S$2.$showNotification]: T.StringAndMapNToFuture(),
    [S$2.$unregister]: T$1.VoidToFutureOfbool(),
    [$update]: T$.VoidToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ServiceWorkerRegistration))));
  dart.setStaticMethodSignature(html$.ServiceWorkerRegistration, () => ['__']);
  dart.setGetterSignature(html$.ServiceWorkerRegistration, () => dart.global.Object.setPrototypeOf({
    [S$1.$active]: T.ServiceWorkerN(),
    [S$2.$backgroundFetch]: T.BackgroundFetchManagerN(),
    [S$2.$installing]: T.ServiceWorkerN(),
    [S$2.$navigationPreload]: T.NavigationPreloadManagerN(),
    [S$2.$paymentManager]: T.PaymentManagerN(),
    [S$2.$pushManager]: T.PushManagerN(),
    [S$1.$scope]: T$.StringN(),
    [S$2.$sync]: T.SyncManagerN(),
    [S$2.$waiting]: T.ServiceWorkerN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ServiceWorkerRegistration))));
  dart.setLibraryUri(html$.ServiceWorkerRegistration, I[167]);
  dart.registerExtension("ServiceWorkerRegistration", html$.ServiceWorkerRegistration);
  html$.ShadowElement = class ShadowElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.ShadowElement.__();
    }
    static new() {
      return T.ShadowElement()[_as](html$.document[S.$createElement]("shadow"));
    }
    static ['_#new#tearOff']() {
      return html$.ShadowElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.ShadowElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("shadow");
    }
    [S$.$getDistributedNodes](...args) {
      return this.getDistributedNodes.apply(this, args);
    }
  };
  (html$.ShadowElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.ShadowElement).created.call(this);
    ;
  }).prototype = html$.ShadowElement.prototype;
  dart.addRtiResources(html$.ShadowElement, ["html|ShadowElement"]);
  dart.setMethodSignature(html$.ShadowElement, () => dart.global.Object.setPrototypeOf({[S$.$getDistributedNodes]: T$4.VoidToListOfNode()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ShadowElement))));
  dart.setStaticMethodSignature(html$.ShadowElement, () => ['__', 'new']);
  dart.setStaticGetterSignature(html$.ShadowElement, () => ['supported']);
  dart.setLibraryUri(html$.ShadowElement, I[167]);
  dart.registerExtension("HTMLShadowElement", html$.ShadowElement);
  html$.ShadowRoot = class ShadowRoot extends html$.DocumentFragment {
    static ['_#_#tearOff']() {
      return html$.ShadowRoot.__();
    }
    get [S$2.$delegatesFocus]() {
      return this.delegatesFocus;
    }
    get [S$.$host]() {
      return this.host;
    }
    get [S.$innerHtml]() {
      return this.innerHTML;
    }
    set [S.$innerHtml](value) {
      this.innerHTML = value;
    }
    get [S.$mode]() {
      return this.mode;
    }
    get [S$2.$olderShadowRoot]() {
      return this.olderShadowRoot;
    }
    get [S$1.$activeElement]() {
      return this.activeElement;
    }
    get [S$1.$fullscreenElement]() {
      return this.fullscreenElement;
    }
    get [S$1.$pointerLockElement]() {
      return this.pointerLockElement;
    }
    get [S$1.$styleSheets]() {
      return this.styleSheets;
    }
    [S$1.$elementFromPoint](...args) {
      return this.elementFromPoint.apply(this, args);
    }
    [S$1.$elementsFromPoint](...args) {
      return this.elementsFromPoint.apply(this, args);
    }
    [S$1.$getSelection](...args) {
      return this.getSelection.apply(this, args);
    }
    static get supported() {
      return !!(Element.prototype.createShadowRoot || Element.prototype.webkitCreateShadowRoot);
    }
    static _shadowRootDeprecationReport() {
      if (!dart.test(html$.ShadowRoot._shadowRootDeprecationReported)) {
        html$.window[S$2.$console].warn("ShadowRoot.resetStyleInheritance and ShadowRoot.applyAuthorStyles now deprecated in dart:html.\nPlease remove them from your code.\n");
        html$.ShadowRoot._shadowRootDeprecationReported = true;
      }
    }
    get [S$2.$resetStyleInheritance]() {
      html$.ShadowRoot._shadowRootDeprecationReport();
      return false;
    }
    set [S$2.$resetStyleInheritance](value) {
      if (value == null) dart.nullFailed(I[166], 28114, 34, "value");
      html$.ShadowRoot._shadowRootDeprecationReport();
    }
    get [S$2.$applyAuthorStyles]() {
      html$.ShadowRoot._shadowRootDeprecationReport();
      return false;
    }
    set [S$2.$applyAuthorStyles](value) {
      if (value == null) dart.nullFailed(I[166], 28126, 30, "value");
      html$.ShadowRoot._shadowRootDeprecationReport();
    }
  };
  dart.addRtiResources(html$.ShadowRoot, ["html|ShadowRoot", "html|DocumentOrShadowRoot", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.ShadowRoot, () => dart.global.Object.setPrototypeOf({
    [S$1.$elementFromPoint]: T$5.intAndintToElementN(),
    [S$1.$elementsFromPoint]: T$5.intAndintToListOfElement(),
    [S$1.$getSelection]: T$5.VoidToSelectionN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.ShadowRoot))));
  dart.setStaticMethodSignature(html$.ShadowRoot, () => ['__', '_shadowRootDeprecationReport']);
  dart.setGetterSignature(html$.ShadowRoot, () => dart.global.Object.setPrototypeOf({
    [S$2.$delegatesFocus]: T$.boolN(),
    [S$.$host]: T$3.ElementN(),
    [S.$mode]: T$.StringN(),
    [S$2.$olderShadowRoot]: T$3.ShadowRootN(),
    [S$1.$activeElement]: T$3.ElementN(),
    [S$1.$fullscreenElement]: T$3.ElementN(),
    [S$1.$pointerLockElement]: T$3.ElementN(),
    [S$1.$styleSheets]: T$5.ListNOfStyleSheet(),
    [S$2.$resetStyleInheritance]: T$.bool(),
    [S$2.$applyAuthorStyles]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ShadowRoot))));
  dart.setSetterSignature(html$.ShadowRoot, () => dart.global.Object.setPrototypeOf({
    [S$2.$resetStyleInheritance]: T$.bool(),
    [S$2.$applyAuthorStyles]: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.ShadowRoot))));
  dart.setStaticGetterSignature(html$.ShadowRoot, () => ['supported']);
  dart.setLibraryUri(html$.ShadowRoot, I[167]);
  dart.setStaticFieldSignature(html$.ShadowRoot, () => ['_shadowRootDeprecationReported']);
  dart.defineLazy(html$.ShadowRoot, {
    /*html$.ShadowRoot._shadowRootDeprecationReported*/get _shadowRootDeprecationReported() {
      return false;
    },
    set _shadowRootDeprecationReported(value) {
      if (value == null) dart.nullFailed(I[166], 28095, 15, "_shadowRootDeprecationReported");
    }
  }, false);
  dart.registerExtension("ShadowRoot", html$.ShadowRoot);
  html$.SharedArrayBuffer = class SharedArrayBuffer$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.SharedArrayBuffer.__();
    }
    static new(length = null) {
      if (length != null) {
        return html$.SharedArrayBuffer._create_1(length);
      }
      return html$.SharedArrayBuffer._create_2();
    }
    static ['_#new#tearOff'](length = null) {
      return html$.SharedArrayBuffer.new(length);
    }
    static _create_1(length) {
      return new SharedArrayBuffer(length);
    }
    static _create_2() {
      return new SharedArrayBuffer();
    }
    get [S$2.$byteLength]() {
      return this.byteLength;
    }
    [S$.$slice](...args) {
      return this.slice.apply(this, args);
    }
  };
  dart.addRtiResources(html$.SharedArrayBuffer, ["html|SharedArrayBuffer"]);
  dart.setMethodSignature(html$.SharedArrayBuffer, () => dart.global.Object.setPrototypeOf({[S$.$slice]: T.intNAndintNToSharedArrayBuffer()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SharedArrayBuffer))));
  dart.setStaticMethodSignature(html$.SharedArrayBuffer, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.SharedArrayBuffer, () => dart.global.Object.setPrototypeOf({[S$2.$byteLength]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SharedArrayBuffer))));
  dart.setLibraryUri(html$.SharedArrayBuffer, I[167]);
  dart.registerExtension("SharedArrayBuffer", html$.SharedArrayBuffer);
  html$.SharedWorker = class SharedWorker$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.SharedWorker.__();
    }
    static new(scriptURL, name = null) {
      if (scriptURL == null) dart.nullFailed(I[166], 28170, 31, "scriptURL");
      if (name != null) {
        return html$.SharedWorker._create_1(scriptURL, name);
      }
      return html$.SharedWorker._create_2(scriptURL);
    }
    static ['_#new#tearOff'](scriptURL, name = null) {
      if (scriptURL == null) dart.nullFailed(I[166], 28170, 31, "scriptURL");
      return html$.SharedWorker.new(scriptURL, name);
    }
    static _create_1(scriptURL, name) {
      return new SharedWorker(scriptURL, name);
    }
    static _create_2(scriptURL) {
      return new SharedWorker(scriptURL);
    }
    get [S$.$port]() {
      return this.port;
    }
    get [S.$onError]() {
      return html$.SharedWorker.errorEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.SharedWorker, ["html|SharedWorker", "html|AbstractWorker", "_interceptors|JavaScriptObject", "html|EventTarget", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$.SharedWorker, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.SharedWorker, () => dart.global.Object.setPrototypeOf({
    [S$.$port]: T.MessagePortN(),
    [S.$onError]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SharedWorker))));
  dart.setLibraryUri(html$.SharedWorker, I[167]);
  dart.setStaticFieldSignature(html$.SharedWorker, () => ['errorEvent']);
  dart.defineLazy(html$.SharedWorker, {
    /*html$.SharedWorker.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    }
  }, false);
  dart.registerExtension("SharedWorker", html$.SharedWorker);
  html$.SharedWorkerGlobalScope = class SharedWorkerGlobalScope extends html$.WorkerGlobalScope {
    static ['_#_#tearOff']() {
      return html$.SharedWorkerGlobalScope.__();
    }
    get [$name]() {
      return this.name;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$0._webkitRequestFileSystem](...args) {
      return this.webkitRequestFileSystem.apply(this, args);
    }
    [S$0.$requestFileSystemSync](...args) {
      return this.webkitRequestFileSystemSync.apply(this, args);
    }
    [S$0.$resolveLocalFileSystemSyncUrl](...args) {
      return this.webkitResolveLocalFileSystemSyncURL.apply(this, args);
    }
    [S$0._webkitResolveLocalFileSystemUrl](...args) {
      return this.webkitResolveLocalFileSystemURL.apply(this, args);
    }
    get [S$2.$onConnect]() {
      return html$.SharedWorkerGlobalScope.connectEvent.forTarget(this);
    }
    static get instance() {
      return T.SharedWorkerGlobalScope()[_as](html$._workerSelf);
    }
  };
  dart.addRtiResources(html$.SharedWorkerGlobalScope, ["html|SharedWorkerGlobalScope"]);
  dart.setMethodSignature(html$.SharedWorkerGlobalScope, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$.VoidTovoid(),
    [S$0._webkitRequestFileSystem]: T$4.intAndintAndFn__Tovoid(),
    [S$0.$requestFileSystemSync]: T$4.intAndintTo_DOMFileSystemSync(),
    [S$0.$resolveLocalFileSystemSyncUrl]: T$4.StringTo_EntrySync(),
    [S$0._webkitResolveLocalFileSystemUrl]: T$4.StringAndFnAndFnTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SharedWorkerGlobalScope))));
  dart.setStaticMethodSignature(html$.SharedWorkerGlobalScope, () => ['__']);
  dart.setGetterSignature(html$.SharedWorkerGlobalScope, () => dart.global.Object.setPrototypeOf({
    [$name]: T$.StringN(),
    [S$2.$onConnect]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SharedWorkerGlobalScope))));
  dart.setStaticGetterSignature(html$.SharedWorkerGlobalScope, () => ['instance']);
  dart.setLibraryUri(html$.SharedWorkerGlobalScope, I[167]);
  dart.setStaticFieldSignature(html$.SharedWorkerGlobalScope, () => ['connectEvent', 'PERSISTENT', 'TEMPORARY']);
  dart.defineLazy(html$.SharedWorkerGlobalScope, {
    /*html$.SharedWorkerGlobalScope.connectEvent*/get connectEvent() {
      return C[418] || CT.C418;
    },
    /*html$.SharedWorkerGlobalScope.PERSISTENT*/get PERSISTENT() {
      return 1;
    },
    /*html$.SharedWorkerGlobalScope.TEMPORARY*/get TEMPORARY() {
      return 0;
    }
  }, false);
  dart.registerExtension("SharedWorkerGlobalScope", html$.SharedWorkerGlobalScope);
  html$.SlotElement = class SlotElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.SlotElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.SlotElement.created();
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    [S$2.$assignedNodes](options = null) {
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return this[S$2._assignedNodes_1](options_1);
      }
      return this[S$2._assignedNodes_2]();
    }
    [S$2._assignedNodes_1](...args) {
      return this.assignedNodes.apply(this, args);
    }
    [S$2._assignedNodes_2](...args) {
      return this.assignedNodes.apply(this, args);
    }
  };
  (html$.SlotElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.SlotElement).created.call(this);
    ;
  }).prototype = html$.SlotElement.prototype;
  dart.addRtiResources(html$.SlotElement, ["html|SlotElement"]);
  dart.setMethodSignature(html$.SlotElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$assignedNodes]: T.MapNToListOfNode(),
    [S$2._assignedNodes_1]: T.dynamicToListOfNode(),
    [S$2._assignedNodes_2]: T$4.VoidToListOfNode()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SlotElement))));
  dart.setStaticMethodSignature(html$.SlotElement, () => ['__']);
  dart.setGetterSignature(html$.SlotElement, () => dart.global.Object.setPrototypeOf({[$name]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SlotElement))));
  dart.setSetterSignature(html$.SlotElement, () => dart.global.Object.setPrototypeOf({[$name]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.SlotElement))));
  dart.setLibraryUri(html$.SlotElement, I[167]);
  dart.registerExtension("HTMLSlotElement", html$.SlotElement);
  html$.SourceBuffer = class SourceBuffer extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.SourceBuffer.__();
    }
    get [S$2.$appendWindowEnd]() {
      return this.appendWindowEnd;
    }
    set [S$2.$appendWindowEnd](value) {
      this.appendWindowEnd = value;
    }
    get [S$2.$appendWindowStart]() {
      return this.appendWindowStart;
    }
    set [S$2.$appendWindowStart](value) {
      this.appendWindowStart = value;
    }
    get [S$.$audioTracks]() {
      return this.audioTracks;
    }
    get [S$.$buffered]() {
      return this.buffered;
    }
    get [S.$mode]() {
      return this.mode;
    }
    set [S.$mode](value) {
      this.mode = value;
    }
    get [S$2.$timestampOffset]() {
      return this.timestampOffset;
    }
    set [S$2.$timestampOffset](value) {
      this.timestampOffset = value;
    }
    get [S$2.$trackDefaults]() {
      return this.trackDefaults;
    }
    set [S$2.$trackDefaults](value) {
      this.trackDefaults = value;
    }
    get [S$2.$updating]() {
      return this.updating;
    }
    get [S$.$videoTracks]() {
      return this.videoTracks;
    }
    [S.$abort](...args) {
      return this.abort.apply(this, args);
    }
    [S$2.$appendBuffer](...args) {
      return this.appendBuffer.apply(this, args);
    }
    [S$2.$appendTypedData](...args) {
      return this.appendBuffer.apply(this, args);
    }
    [$remove](...args) {
      return this.remove.apply(this, args);
    }
    get [S.$onAbort]() {
      return html$.SourceBuffer.abortEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.SourceBuffer.errorEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.SourceBuffer, ["html|SourceBuffer"]);
  dart.setMethodSignature(html$.SourceBuffer, () => dart.global.Object.setPrototypeOf({
    [S.$abort]: T$.VoidTovoid(),
    [S$2.$appendBuffer]: T.ByteBufferTovoid(),
    [S$2.$appendTypedData]: T.TypedDataTovoid(),
    [$remove]: T$4.numAndnumTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SourceBuffer))));
  dart.setStaticMethodSignature(html$.SourceBuffer, () => ['__']);
  dart.setGetterSignature(html$.SourceBuffer, () => dart.global.Object.setPrototypeOf({
    [S$2.$appendWindowEnd]: T$3.numN(),
    [S$2.$appendWindowStart]: T$3.numN(),
    [S$.$audioTracks]: T$4.AudioTrackListN(),
    [S$.$buffered]: T.TimeRangesN(),
    [S.$mode]: T$.StringN(),
    [S$2.$timestampOffset]: T$3.numN(),
    [S$2.$trackDefaults]: T.TrackDefaultListN(),
    [S$2.$updating]: T$.boolN(),
    [S$.$videoTracks]: T$4.VideoTrackListN(),
    [S.$onAbort]: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SourceBuffer))));
  dart.setSetterSignature(html$.SourceBuffer, () => dart.global.Object.setPrototypeOf({
    [S$2.$appendWindowEnd]: T$3.numN(),
    [S$2.$appendWindowStart]: T$3.numN(),
    [S.$mode]: T$.StringN(),
    [S$2.$timestampOffset]: T$3.numN(),
    [S$2.$trackDefaults]: T.TrackDefaultListN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.SourceBuffer))));
  dart.setLibraryUri(html$.SourceBuffer, I[167]);
  dart.setStaticFieldSignature(html$.SourceBuffer, () => ['abortEvent', 'errorEvent']);
  dart.defineLazy(html$.SourceBuffer, {
    /*html$.SourceBuffer.abortEvent*/get abortEvent() {
      return C[265] || CT.C265;
    },
    /*html$.SourceBuffer.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    }
  }, false);
  dart.registerExtension("SourceBuffer", html$.SourceBuffer);
  const EventTarget_ListBase$36 = class EventTarget_ListBase extends html$.EventTarget {};
  (EventTarget_ListBase$36._created = function() {
    G$.ListBaseOfSourceBuffer().new.call(this);
    dart.global.Object.getPrototypeOf(EventTarget_ListBase$36)._created.call(this);
  }).prototype = EventTarget_ListBase$36.prototype;
  dart.applyMixin(EventTarget_ListBase$36, G$.ListBaseOfSourceBuffer());
  const EventTarget_ImmutableListMixin$36 = class EventTarget_ImmutableListMixin extends EventTarget_ListBase$36 {};
  (EventTarget_ImmutableListMixin$36._created = function() {
    dart.global.Object.getPrototypeOf(EventTarget_ImmutableListMixin$36)._created.call(this);
  }).prototype = EventTarget_ImmutableListMixin$36.prototype;
  dart.applyMixin(EventTarget_ImmutableListMixin$36, G$.ImmutableListMixinOfSourceBuffer());
  html$.SourceBufferList = class SourceBufferList extends EventTarget_ImmutableListMixin$36 {
    static ['_#_#tearOff']() {
      return html$.SourceBufferList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 28352, 32, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 28358, 25, "index");
      T.SourceBuffer()[_as](value);
      if (value == null) dart.nullFailed(I[166], 28358, 45, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 28364, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 28392, 30, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.SourceBufferList, ["html|SourceBufferList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.SourceBufferList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T.intToSourceBuffer(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T.intToSourceBuffer()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SourceBufferList))));
  dart.setStaticMethodSignature(html$.SourceBufferList, () => ['__']);
  dart.setGetterSignature(html$.SourceBufferList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SourceBufferList))));
  dart.setSetterSignature(html$.SourceBufferList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.SourceBufferList))));
  dart.setLibraryUri(html$.SourceBufferList, I[167]);
  dart.registerExtension("SourceBufferList", html$.SourceBufferList);
  html$.SourceElement = class SourceElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.SourceElement.__();
    }
    static new() {
      return html$.document.createElement("source");
    }
    static ['_#new#tearOff']() {
      return html$.SourceElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.SourceElement.created();
    }
    get [S$.$media]() {
      return this.media;
    }
    set [S$.$media](value) {
      this.media = value;
    }
    get [S$1.$sizes]() {
      return this.sizes;
    }
    set [S$1.$sizes](value) {
      this.sizes = value;
    }
    get [S$.$src]() {
      return this.src;
    }
    set [S$.$src](value) {
      this.src = value;
    }
    get [S$1.$srcset]() {
      return this.srcset;
    }
    set [S$1.$srcset](value) {
      this.srcset = value;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
  };
  (html$.SourceElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.SourceElement).created.call(this);
    ;
  }).prototype = html$.SourceElement.prototype;
  dart.addRtiResources(html$.SourceElement, ["html|SourceElement"]);
  dart.setStaticMethodSignature(html$.SourceElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.SourceElement, () => dart.global.Object.setPrototypeOf({
    [S$.$media]: T$.String(),
    [S$1.$sizes]: T$.StringN(),
    [S$.$src]: T$.String(),
    [S$1.$srcset]: T$.StringN(),
    [S.$type]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SourceElement))));
  dart.setSetterSignature(html$.SourceElement, () => dart.global.Object.setPrototypeOf({
    [S$.$media]: T$.String(),
    [S$1.$sizes]: T$.StringN(),
    [S$.$src]: T$.String(),
    [S$1.$srcset]: T$.StringN(),
    [S.$type]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.SourceElement))));
  dart.setLibraryUri(html$.SourceElement, I[167]);
  dart.registerExtension("HTMLSourceElement", html$.SourceElement);
  html$.SpanElement = class SpanElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.SpanElement.__();
    }
    static new() {
      return html$.document.createElement("span");
    }
    static ['_#new#tearOff']() {
      return html$.SpanElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.SpanElement.created();
    }
  };
  (html$.SpanElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.SpanElement).created.call(this);
    ;
  }).prototype = html$.SpanElement.prototype;
  dart.addRtiResources(html$.SpanElement, ["html|SpanElement"]);
  dart.setStaticMethodSignature(html$.SpanElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.SpanElement, I[167]);
  dart.registerExtension("HTMLSpanElement", html$.SpanElement);
  html$.SpeechGrammar = class SpeechGrammar$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.SpeechGrammar.__();
    }
    static new() {
      return html$.SpeechGrammar._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.SpeechGrammar.new();
    }
    static _create_1() {
      return new SpeechGrammar();
    }
    get [S$.$src]() {
      return this.src;
    }
    set [S$.$src](value) {
      this.src = value;
    }
    get [S$1.$weight]() {
      return this.weight;
    }
    set [S$1.$weight](value) {
      this.weight = value;
    }
  };
  dart.addRtiResources(html$.SpeechGrammar, ["html|SpeechGrammar"]);
  dart.setStaticMethodSignature(html$.SpeechGrammar, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.SpeechGrammar, () => dart.global.Object.setPrototypeOf({
    [S$.$src]: T$.StringN(),
    [S$1.$weight]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechGrammar))));
  dart.setSetterSignature(html$.SpeechGrammar, () => dart.global.Object.setPrototypeOf({
    [S$.$src]: T$.StringN(),
    [S$1.$weight]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.SpeechGrammar))));
  dart.setLibraryUri(html$.SpeechGrammar, I[167]);
  dart.registerExtension("SpeechGrammar", html$.SpeechGrammar);
  const JavaScriptObject_ListBase$36$5 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$5.new = function() {
    G$.ListBaseOfSpeechGrammar().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$5).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$5.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$5, G$.ListBaseOfSpeechGrammar());
  const JavaScriptObject_ImmutableListMixin$36$5 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$5 {};
  (JavaScriptObject_ImmutableListMixin$36$5.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$5).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$5.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$5, G$.ImmutableListMixinOfSpeechGrammar());
  html$.SpeechGrammarList = class SpeechGrammarList$ extends JavaScriptObject_ImmutableListMixin$36$5 {
    static ['_#_#tearOff']() {
      return html$.SpeechGrammarList.__();
    }
    static new() {
      return html$.SpeechGrammarList._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.SpeechGrammarList.new();
    }
    static _create_1() {
      return new SpeechGrammarList();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 28509, 33, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 28515, 25, "index");
      T.SpeechGrammar()[_as](value);
      if (value == null) dart.nullFailed(I[166], 28515, 46, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 28521, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 28549, 31, "index");
      return this[$_get](index);
    }
    [S$2.$addFromString](...args) {
      return this.addFromString.apply(this, args);
    }
    [S$2.$addFromUri](...args) {
      return this.addFromUri.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.SpeechGrammarList, ["html|SpeechGrammarList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.SpeechGrammarList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T.intToSpeechGrammar(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$2.$addFromString]: T.StringAndnumNTovoid(),
    [S$2.$addFromUri]: T.StringAndnumNTovoid(),
    [S$.$item]: T.intToSpeechGrammar()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SpeechGrammarList))));
  dart.setStaticMethodSignature(html$.SpeechGrammarList, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.SpeechGrammarList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechGrammarList))));
  dart.setSetterSignature(html$.SpeechGrammarList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.SpeechGrammarList))));
  dart.setLibraryUri(html$.SpeechGrammarList, I[167]);
  dart.registerExtension("SpeechGrammarList", html$.SpeechGrammarList);
  html$.SpeechRecognition = class SpeechRecognition extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.SpeechRecognition.__();
    }
    static get supported() {
      return !!(window.SpeechRecognition || window.webkitSpeechRecognition);
    }
    get [S$2.$audioTrack]() {
      return this.audioTrack;
    }
    set [S$2.$audioTrack](value) {
      this.audioTrack = value;
    }
    get [S$2.$continuous]() {
      return this.continuous;
    }
    set [S$2.$continuous](value) {
      this.continuous = value;
    }
    get [S$2.$grammars]() {
      return this.grammars;
    }
    set [S$2.$grammars](value) {
      this.grammars = value;
    }
    get [S$2.$interimResults]() {
      return this.interimResults;
    }
    set [S$2.$interimResults](value) {
      this.interimResults = value;
    }
    get [S.$lang]() {
      return this.lang;
    }
    set [S.$lang](value) {
      this.lang = value;
    }
    get [S$2.$maxAlternatives]() {
      return this.maxAlternatives;
    }
    set [S$2.$maxAlternatives](value) {
      this.maxAlternatives = value;
    }
    [S.$abort](...args) {
      return this.abort.apply(this, args);
    }
    [S$.$start](...args) {
      return this.start.apply(this, args);
    }
    [S$.$stop](...args) {
      return this.stop.apply(this, args);
    }
    get [S$2.$onAudioEnd]() {
      return html$.SpeechRecognition.audioEndEvent.forTarget(this);
    }
    get [S$2.$onAudioStart]() {
      return html$.SpeechRecognition.audioStartEvent.forTarget(this);
    }
    get [S$2.$onEnd]() {
      return html$.SpeechRecognition.endEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.SpeechRecognition.errorEvent.forTarget(this);
    }
    get [S$2.$onNoMatch]() {
      return html$.SpeechRecognition.noMatchEvent.forTarget(this);
    }
    get [S$2.$onResult]() {
      return html$.SpeechRecognition.resultEvent.forTarget(this);
    }
    get [S$2.$onSoundEnd]() {
      return html$.SpeechRecognition.soundEndEvent.forTarget(this);
    }
    get [S$2.$onSoundStart]() {
      return html$.SpeechRecognition.soundStartEvent.forTarget(this);
    }
    get [S$2.$onSpeechEnd]() {
      return html$.SpeechRecognition.speechEndEvent.forTarget(this);
    }
    get [S$2.$onSpeechStart]() {
      return html$.SpeechRecognition.speechStartEvent.forTarget(this);
    }
    get [S$2.$onStart]() {
      return html$.SpeechRecognition.startEvent.forTarget(this);
    }
    static new() {
      return new (window.SpeechRecognition || window.webkitSpeechRecognition)();
    }
    static ['_#new#tearOff']() {
      return html$.SpeechRecognition.new();
    }
  };
  dart.addRtiResources(html$.SpeechRecognition, ["html|SpeechRecognition"]);
  dart.setMethodSignature(html$.SpeechRecognition, () => dart.global.Object.setPrototypeOf({
    [S.$abort]: T$.VoidTovoid(),
    [S$.$start]: T$.VoidTovoid(),
    [S$.$stop]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SpeechRecognition))));
  dart.setStaticMethodSignature(html$.SpeechRecognition, () => ['__', 'new']);
  dart.setGetterSignature(html$.SpeechRecognition, () => dart.global.Object.setPrototypeOf({
    [S$2.$audioTrack]: T$5.MediaStreamTrackN(),
    [S$2.$continuous]: T$.boolN(),
    [S$2.$grammars]: T.SpeechGrammarListN(),
    [S$2.$interimResults]: T$.boolN(),
    [S.$lang]: T$.StringN(),
    [S$2.$maxAlternatives]: T$.intN(),
    [S$2.$onAudioEnd]: T$3.StreamOfEvent(),
    [S$2.$onAudioStart]: T$3.StreamOfEvent(),
    [S$2.$onEnd]: T$3.StreamOfEvent(),
    [S.$onError]: T.StreamOfSpeechRecognitionError(),
    [S$2.$onNoMatch]: T.StreamOfSpeechRecognitionEvent(),
    [S$2.$onResult]: T.StreamOfSpeechRecognitionEvent(),
    [S$2.$onSoundEnd]: T$3.StreamOfEvent(),
    [S$2.$onSoundStart]: T$3.StreamOfEvent(),
    [S$2.$onSpeechEnd]: T$3.StreamOfEvent(),
    [S$2.$onSpeechStart]: T$3.StreamOfEvent(),
    [S$2.$onStart]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechRecognition))));
  dart.setSetterSignature(html$.SpeechRecognition, () => dart.global.Object.setPrototypeOf({
    [S$2.$audioTrack]: T$5.MediaStreamTrackN(),
    [S$2.$continuous]: T$.boolN(),
    [S$2.$grammars]: T.SpeechGrammarListN(),
    [S$2.$interimResults]: T$.boolN(),
    [S.$lang]: T$.StringN(),
    [S$2.$maxAlternatives]: T$.intN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.SpeechRecognition))));
  dart.setStaticGetterSignature(html$.SpeechRecognition, () => ['supported']);
  dart.setLibraryUri(html$.SpeechRecognition, I[167]);
  dart.setStaticFieldSignature(html$.SpeechRecognition, () => ['audioEndEvent', 'audioStartEvent', 'endEvent', 'errorEvent', 'noMatchEvent', 'resultEvent', 'soundEndEvent', 'soundStartEvent', 'speechEndEvent', 'speechStartEvent', 'startEvent']);
  dart.defineLazy(html$.SpeechRecognition, {
    /*html$.SpeechRecognition.audioEndEvent*/get audioEndEvent() {
      return C[419] || CT.C419;
    },
    /*html$.SpeechRecognition.audioStartEvent*/get audioStartEvent() {
      return C[420] || CT.C420;
    },
    /*html$.SpeechRecognition.endEvent*/get endEvent() {
      return C[421] || CT.C421;
    },
    /*html$.SpeechRecognition.errorEvent*/get errorEvent() {
      return C[422] || CT.C422;
    },
    /*html$.SpeechRecognition.noMatchEvent*/get noMatchEvent() {
      return C[423] || CT.C423;
    },
    /*html$.SpeechRecognition.resultEvent*/get resultEvent() {
      return C[424] || CT.C424;
    },
    /*html$.SpeechRecognition.soundEndEvent*/get soundEndEvent() {
      return C[425] || CT.C425;
    },
    /*html$.SpeechRecognition.soundStartEvent*/get soundStartEvent() {
      return C[426] || CT.C426;
    },
    /*html$.SpeechRecognition.speechEndEvent*/get speechEndEvent() {
      return C[427] || CT.C427;
    },
    /*html$.SpeechRecognition.speechStartEvent*/get speechStartEvent() {
      return C[428] || CT.C428;
    },
    /*html$.SpeechRecognition.startEvent*/get startEvent() {
      return C[429] || CT.C429;
    }
  }, false);
  dart.registerExtension("SpeechRecognition", html$.SpeechRecognition);
  dart.registerExtension("webkitSpeechRecognition", html$.SpeechRecognition);
  html$.SpeechRecognitionAlternative = class SpeechRecognitionAlternative extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.SpeechRecognitionAlternative.__();
    }
    get [S$2.$confidence]() {
      return this.confidence;
    }
    get [S$2.$transcript]() {
      return this.transcript;
    }
  };
  dart.addRtiResources(html$.SpeechRecognitionAlternative, ["html|SpeechRecognitionAlternative"]);
  dart.setStaticMethodSignature(html$.SpeechRecognitionAlternative, () => ['__']);
  dart.setGetterSignature(html$.SpeechRecognitionAlternative, () => dart.global.Object.setPrototypeOf({
    [S$2.$confidence]: T$3.numN(),
    [S$2.$transcript]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechRecognitionAlternative))));
  dart.setLibraryUri(html$.SpeechRecognitionAlternative, I[167]);
  dart.registerExtension("SpeechRecognitionAlternative", html$.SpeechRecognitionAlternative);
  html$.SpeechRecognitionError = class SpeechRecognitionError$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.SpeechRecognitionError.__();
    }
    static new(type, initDict = null) {
      if (type == null) dart.nullFailed(I[166], 28769, 41, "type");
      if (initDict != null) {
        let initDict_1 = html_common.convertDartToNative_Dictionary(initDict);
        return html$.SpeechRecognitionError._create_1(type, initDict_1);
      }
      return html$.SpeechRecognitionError._create_2(type);
    }
    static ['_#new#tearOff'](type, initDict = null) {
      if (type == null) dart.nullFailed(I[166], 28769, 41, "type");
      return html$.SpeechRecognitionError.new(type, initDict);
    }
    static _create_1(type, initDict) {
      return new SpeechRecognitionError(type, initDict);
    }
    static _create_2(type) {
      return new SpeechRecognitionError(type);
    }
    get [S.$error]() {
      return this.error;
    }
    get [$message]() {
      return this.message;
    }
  };
  dart.addRtiResources(html$.SpeechRecognitionError, ["html|SpeechRecognitionError"]);
  dart.setStaticMethodSignature(html$.SpeechRecognitionError, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.SpeechRecognitionError, () => dart.global.Object.setPrototypeOf({
    [S.$error]: T$.StringN(),
    [$message]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechRecognitionError))));
  dart.setLibraryUri(html$.SpeechRecognitionError, I[167]);
  dart.registerExtension("SpeechRecognitionError", html$.SpeechRecognitionError);
  html$.SpeechRecognitionEvent = class SpeechRecognitionEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.SpeechRecognitionEvent.__();
    }
    static new(type, initDict = null) {
      if (type == null) dart.nullFailed(I[166], 28800, 41, "type");
      if (initDict != null) {
        let initDict_1 = html_common.convertDartToNative_Dictionary(initDict);
        return html$.SpeechRecognitionEvent._create_1(type, initDict_1);
      }
      return html$.SpeechRecognitionEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, initDict = null) {
      if (type == null) dart.nullFailed(I[166], 28800, 41, "type");
      return html$.SpeechRecognitionEvent.new(type, initDict);
    }
    static _create_1(type, initDict) {
      return new SpeechRecognitionEvent(type, initDict);
    }
    static _create_2(type) {
      return new SpeechRecognitionEvent(type);
    }
    get [S$2.$emma]() {
      return this.emma;
    }
    get [S$2.$interpretation]() {
      return this.interpretation;
    }
    get [S$2.$resultIndex]() {
      return this.resultIndex;
    }
    get [S$2.$results]() {
      return this.results;
    }
  };
  dart.addRtiResources(html$.SpeechRecognitionEvent, ["html|SpeechRecognitionEvent"]);
  dart.setStaticMethodSignature(html$.SpeechRecognitionEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.SpeechRecognitionEvent, () => dart.global.Object.setPrototypeOf({
    [S$2.$emma]: T$3.DocumentN(),
    [S$2.$interpretation]: T$3.DocumentN(),
    [S$2.$resultIndex]: T$.intN(),
    [S$2.$results]: T.ListNOfSpeechRecognitionResult()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechRecognitionEvent))));
  dart.setLibraryUri(html$.SpeechRecognitionEvent, I[167]);
  dart.registerExtension("SpeechRecognitionEvent", html$.SpeechRecognitionEvent);
  html$.SpeechRecognitionResult = class SpeechRecognitionResult extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.SpeechRecognitionResult.__();
    }
    get [S$2.$isFinal]() {
      return this.isFinal;
    }
    get [$length]() {
      return this.length;
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.SpeechRecognitionResult, ["html|SpeechRecognitionResult"]);
  dart.setMethodSignature(html$.SpeechRecognitionResult, () => dart.global.Object.setPrototypeOf({[S$.$item]: T.intToSpeechRecognitionAlternative()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SpeechRecognitionResult))));
  dart.setStaticMethodSignature(html$.SpeechRecognitionResult, () => ['__']);
  dart.setGetterSignature(html$.SpeechRecognitionResult, () => dart.global.Object.setPrototypeOf({
    [S$2.$isFinal]: T$.boolN(),
    [$length]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechRecognitionResult))));
  dart.setLibraryUri(html$.SpeechRecognitionResult, I[167]);
  dart.registerExtension("SpeechRecognitionResult", html$.SpeechRecognitionResult);
  html$.SpeechSynthesis = class SpeechSynthesis extends html$.EventTarget {
    [S$2.$getVoices]() {
      let voices = this[S$2._getVoices]();
      if (dart.notNull(voices[$length]) > 0) _js_helper.applyExtension("SpeechSynthesisVoice", voices[$_get](0));
      return voices;
    }
    static ['_#_#tearOff']() {
      return html$.SpeechSynthesis.__();
    }
    get [S$.$paused]() {
      return this.paused;
    }
    get [S$2.$pending]() {
      return this.pending;
    }
    get [S$2.$speaking]() {
      return this.speaking;
    }
    [S$.$cancel](...args) {
      return this.cancel.apply(this, args);
    }
    [S$2._getVoices](...args) {
      return this.getVoices.apply(this, args);
    }
    [S$.$pause](...args) {
      return this.pause.apply(this, args);
    }
    [S$1.$resume](...args) {
      return this.resume.apply(this, args);
    }
    [S$0.$speak](...args) {
      return this.speak.apply(this, args);
    }
  };
  dart.addRtiResources(html$.SpeechSynthesis, ["html|SpeechSynthesis"]);
  dart.setMethodSignature(html$.SpeechSynthesis, () => dart.global.Object.setPrototypeOf({
    [S$2.$getVoices]: T.VoidToListOfSpeechSynthesisVoice(),
    [S$.$cancel]: T$.VoidTovoid(),
    [S$2._getVoices]: T.VoidToListOfSpeechSynthesisVoice(),
    [S$.$pause]: T$.VoidTovoid(),
    [S$1.$resume]: T$.VoidTovoid(),
    [S$0.$speak]: T.SpeechSynthesisUtteranceTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SpeechSynthesis))));
  dart.setStaticMethodSignature(html$.SpeechSynthesis, () => ['__']);
  dart.setGetterSignature(html$.SpeechSynthesis, () => dart.global.Object.setPrototypeOf({
    [S$.$paused]: T$.boolN(),
    [S$2.$pending]: T$.boolN(),
    [S$2.$speaking]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechSynthesis))));
  dart.setLibraryUri(html$.SpeechSynthesis, I[167]);
  dart.registerExtension("SpeechSynthesis", html$.SpeechSynthesis);
  html$.SpeechSynthesisEvent = class SpeechSynthesisEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.SpeechSynthesisEvent.__();
    }
    get [S$2.$charIndex]() {
      return this.charIndex;
    }
    get [S$.$elapsedTime]() {
      return this.elapsedTime;
    }
    get [$name]() {
      return this.name;
    }
    get [S$2.$utterance]() {
      return this.utterance;
    }
  };
  dart.addRtiResources(html$.SpeechSynthesisEvent, ["html|SpeechSynthesisEvent"]);
  dart.setStaticMethodSignature(html$.SpeechSynthesisEvent, () => ['__']);
  dart.setGetterSignature(html$.SpeechSynthesisEvent, () => dart.global.Object.setPrototypeOf({
    [S$2.$charIndex]: T$.intN(),
    [S$.$elapsedTime]: T$3.numN(),
    [$name]: T$.StringN(),
    [S$2.$utterance]: T.SpeechSynthesisUtteranceN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechSynthesisEvent))));
  dart.setLibraryUri(html$.SpeechSynthesisEvent, I[167]);
  dart.registerExtension("SpeechSynthesisEvent", html$.SpeechSynthesisEvent);
  html$.SpeechSynthesisUtterance = class SpeechSynthesisUtterance$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.SpeechSynthesisUtterance.__();
    }
    static new(text = null) {
      if (text != null) {
        return html$.SpeechSynthesisUtterance._create_1(text);
      }
      return html$.SpeechSynthesisUtterance._create_2();
    }
    static ['_#new#tearOff'](text = null) {
      return html$.SpeechSynthesisUtterance.new(text);
    }
    static _create_1(text) {
      return new SpeechSynthesisUtterance(text);
    }
    static _create_2() {
      return new SpeechSynthesisUtterance();
    }
    get [S.$lang]() {
      return this.lang;
    }
    set [S.$lang](value) {
      this.lang = value;
    }
    get [S$2.$pitch]() {
      return this.pitch;
    }
    set [S$2.$pitch](value) {
      this.pitch = value;
    }
    get [S$2.$rate]() {
      return this.rate;
    }
    set [S$2.$rate](value) {
      this.rate = value;
    }
    get [S.$text]() {
      return this.text;
    }
    set [S.$text](value) {
      this.text = value;
    }
    get [S$2.$voice]() {
      return this.voice;
    }
    set [S$2.$voice](value) {
      this.voice = value;
    }
    get [S$.$volume]() {
      return this.volume;
    }
    set [S$.$volume](value) {
      this.volume = value;
    }
    get [S$2.$onBoundary]() {
      return html$.SpeechSynthesisUtterance.boundaryEvent.forTarget(this);
    }
    get [S$2.$onEnd]() {
      return html$.SpeechSynthesisUtterance.endEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.SpeechSynthesisUtterance.errorEvent.forTarget(this);
    }
    get [S$2.$onMark]() {
      return html$.SpeechSynthesisUtterance.markEvent.forTarget(this);
    }
    get [S$.$onPause]() {
      return html$.SpeechSynthesisUtterance.pauseEvent.forTarget(this);
    }
    get [S$2.$onResume]() {
      return html$.SpeechSynthesisUtterance.resumeEvent.forTarget(this);
    }
    get [S$2.$onStart]() {
      return html$.SpeechSynthesisUtterance.startEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.SpeechSynthesisUtterance, ["html|SpeechSynthesisUtterance"]);
  dart.setStaticMethodSignature(html$.SpeechSynthesisUtterance, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.SpeechSynthesisUtterance, () => dart.global.Object.setPrototypeOf({
    [S.$lang]: T$.StringN(),
    [S$2.$pitch]: T$3.numN(),
    [S$2.$rate]: T$3.numN(),
    [S.$text]: T$.StringN(),
    [S$2.$voice]: T.SpeechSynthesisVoiceN(),
    [S$.$volume]: T$3.numN(),
    [S$2.$onBoundary]: T$6.StreamOfSpeechSynthesisEvent(),
    [S$2.$onEnd]: T$6.StreamOfSpeechSynthesisEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S$2.$onMark]: T$6.StreamOfSpeechSynthesisEvent(),
    [S$.$onPause]: T$3.StreamOfEvent(),
    [S$2.$onResume]: T$6.StreamOfSpeechSynthesisEvent(),
    [S$2.$onStart]: T$6.StreamOfSpeechSynthesisEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechSynthesisUtterance))));
  dart.setSetterSignature(html$.SpeechSynthesisUtterance, () => dart.global.Object.setPrototypeOf({
    [S.$lang]: T$.StringN(),
    [S$2.$pitch]: T$3.numN(),
    [S$2.$rate]: T$3.numN(),
    [S.$text]: T$.StringN(),
    [S$2.$voice]: T.SpeechSynthesisVoiceN(),
    [S$.$volume]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.SpeechSynthesisUtterance))));
  dart.setLibraryUri(html$.SpeechSynthesisUtterance, I[167]);
  dart.setStaticFieldSignature(html$.SpeechSynthesisUtterance, () => ['boundaryEvent', 'endEvent', 'errorEvent', 'markEvent', 'pauseEvent', 'resumeEvent', 'startEvent']);
  dart.defineLazy(html$.SpeechSynthesisUtterance, {
    /*html$.SpeechSynthesisUtterance.boundaryEvent*/get boundaryEvent() {
      return C[430] || CT.C430;
    },
    /*html$.SpeechSynthesisUtterance.endEvent*/get endEvent() {
      return C[431] || CT.C431;
    },
    /*html$.SpeechSynthesisUtterance.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.SpeechSynthesisUtterance.markEvent*/get markEvent() {
      return C[432] || CT.C432;
    },
    /*html$.SpeechSynthesisUtterance.pauseEvent*/get pauseEvent() {
      return C[320] || CT.C320;
    },
    /*html$.SpeechSynthesisUtterance.resumeEvent*/get resumeEvent() {
      return C[433] || CT.C433;
    },
    /*html$.SpeechSynthesisUtterance.startEvent*/get startEvent() {
      return C[434] || CT.C434;
    }
  }, false);
  dart.registerExtension("SpeechSynthesisUtterance", html$.SpeechSynthesisUtterance);
  html$.SpeechSynthesisVoice = class SpeechSynthesisVoice extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.SpeechSynthesisVoice.__();
    }
    get [S$1.$defaultValue]() {
      return this.default;
    }
    get [S.$lang]() {
      return this.lang;
    }
    get [S$2.$localService]() {
      return this.localService;
    }
    get [$name]() {
      return this.name;
    }
    get [S$2.$voiceUri]() {
      return this.voiceURI;
    }
  };
  dart.addRtiResources(html$.SpeechSynthesisVoice, ["html|SpeechSynthesisVoice"]);
  dart.setStaticMethodSignature(html$.SpeechSynthesisVoice, () => ['__']);
  dart.setGetterSignature(html$.SpeechSynthesisVoice, () => dart.global.Object.setPrototypeOf({
    [S$1.$defaultValue]: T$.boolN(),
    [S.$lang]: T$.StringN(),
    [S$2.$localService]: T$.boolN(),
    [$name]: T$.StringN(),
    [S$2.$voiceUri]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SpeechSynthesisVoice))));
  dart.setLibraryUri(html$.SpeechSynthesisVoice, I[167]);
  dart.registerExtension("SpeechSynthesisVoice", html$.SpeechSynthesisVoice);
  html$.StaticRange = class StaticRange extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.StaticRange.__();
    }
    get [S$2.$collapsed]() {
      return this.collapsed;
    }
    get [S$2.$endContainer]() {
      return this.endContainer;
    }
    get [S$2.$endOffset]() {
      return this.endOffset;
    }
    get [S$2.$startContainer]() {
      return this.startContainer;
    }
    get [S$2.$startOffset]() {
      return this.startOffset;
    }
  };
  dart.addRtiResources(html$.StaticRange, ["html|StaticRange"]);
  dart.setStaticMethodSignature(html$.StaticRange, () => ['__']);
  dart.setGetterSignature(html$.StaticRange, () => dart.global.Object.setPrototypeOf({
    [S$2.$collapsed]: T$.boolN(),
    [S$2.$endContainer]: T$3.NodeN$2(),
    [S$2.$endOffset]: T$.intN(),
    [S$2.$startContainer]: T$3.NodeN$2(),
    [S$2.$startOffset]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.StaticRange))));
  dart.setLibraryUri(html$.StaticRange, I[167]);
  dart.registerExtension("StaticRange", html$.StaticRange);
  const JavaScriptObject_MapBase$36$1 = class JavaScriptObject_MapBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_MapBase$36$1.new = function() {
    G$.MapBaseOfString$String().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_MapBase$36$1).new.call(this);
  }).prototype = JavaScriptObject_MapBase$36$1.prototype;
  dart.applyMixin(JavaScriptObject_MapBase$36$1, G$.MapBaseOfString$String());
  html$.Storage = class Storage extends JavaScriptObject_MapBase$36$1 {
    [$addAll](other) {
      T$2.MapOfString$String()[_as](other);
      if (other == null) dart.nullFailed(I[166], 29097, 35, "other");
      other[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 29098, 20, "k");
        if (v == null) dart.nullFailed(I[166], 29098, 23, "v");
        this[$_set](k, v);
      }, T$2.StringAndStringTovoid()));
    }
    [$containsValue](value) {
      return this[$values][$any](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 29104, 52, "e");
        return core.identical(e, value);
      }, T$.StringTobool()));
    }
    [$containsKey](key) {
      return this[S$1._getItem](T$.String()[_as](key)) != null;
    }
    [$_get](key) {
      return this[S$1._getItem](T$.String()[_as](key));
    }
    [$_set](key, value$) {
      let value = value$;
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 29110, 28, "key");
      T$.String()[_as](value);
      if (value == null) dart.nullFailed(I[166], 29110, 40, "value");
      this[S$2._setItem](key, value);
      return value$;
    }
    [$putIfAbsent](key, ifAbsent) {
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 29114, 29, "key");
      T$.VoidToString()[_as](ifAbsent);
      if (ifAbsent == null) dart.nullFailed(I[166], 29114, 41, "ifAbsent");
      if (!dart.test(this[$containsKey](key))) this[$_set](key, ifAbsent());
      return dart.nullCast(this[$_get](key), T$.String());
    }
    [$remove](key) {
      let value = this[$_get](key);
      this[S$2._removeItem](T$.String()[_as](key));
      return value;
    }
    [$clear]() {
      return this[S$0._clear$3]();
    }
    [$forEach](f) {
      if (f == null) dart.nullFailed(I[166], 29127, 21, "f");
      for (let i = 0; true; i = i + 1) {
        let key = this[S$2._key](i);
        if (key == null) return;
        f(key, dart.nullCheck(this[$_get](key)));
      }
    }
    get [$keys]() {
      let keys = G.JSArrayOfString().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 29138, 14, "k");
        if (v == null) dart.nullFailed(I[166], 29138, 17, "v");
        return keys[$add](k);
      }, T$2.StringAndStringTovoid()));
      return keys;
    }
    get [$values]() {
      let values = G.JSArrayOfString().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 29144, 14, "k");
        if (v == null) dart.nullFailed(I[166], 29144, 17, "v");
        return values[$add](v);
      }, T$2.StringAndStringTovoid()));
      return values;
    }
    get [$length]() {
      return this[S$2._length$3];
    }
    get [$isEmpty]() {
      return this[S$2._key](0) == null;
    }
    get [$isNotEmpty]() {
      return !dart.test(this[$isEmpty]);
    }
    static ['_#_#tearOff']() {
      return html$.Storage.__();
    }
    get [S$2._length$3]() {
      return this.length;
    }
    [S$0._clear$3](...args) {
      return this.clear.apply(this, args);
    }
    [S$1._getItem](...args) {
      return this.getItem.apply(this, args);
    }
    [S$2._key](...args) {
      return this.key.apply(this, args);
    }
    [S$2._removeItem](...args) {
      return this.removeItem.apply(this, args);
    }
    [S$2._setItem](...args) {
      return this.setItem.apply(this, args);
    }
  };
  dart.addRtiResources(html$.Storage, ["html|Storage"]);
  dart.setMethodSignature(html$.Storage, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$6.ObjectNToStringN(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    [$remove]: T$6.ObjectNToStringN(),
    [$clear]: T$.VoidTovoid(),
    [S$0._clear$3]: T$.VoidTovoid(),
    [S$1._getItem]: T$.StringToStringN(),
    [S$2._key]: T$0.intToStringN(),
    [S$2._removeItem]: T$.StringTovoid(),
    [S$2._setItem]: T$2.StringAndStringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Storage))));
  dart.setStaticMethodSignature(html$.Storage, () => ['__']);
  dart.setGetterSignature(html$.Storage, () => dart.global.Object.setPrototypeOf({
    [$keys]: T$0.IterableOfString(),
    [S$2._length$3]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Storage))));
  dart.setLibraryUri(html$.Storage, I[167]);
  dart.registerExtension("Storage", html$.Storage);
  html$.StorageEvent = class StorageEvent$ extends html$.Event {
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 29192, 31, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : false;
      if (canBubble == null) dart.nullFailed(I[166], 29193, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : false;
      if (cancelable == null) dart.nullFailed(I[166], 29194, 12, "cancelable");
      let key = opts && 'key' in opts ? opts.key : null;
      let oldValue = opts && 'oldValue' in opts ? opts.oldValue : null;
      let newValue = opts && 'newValue' in opts ? opts.newValue : null;
      let url = opts && 'url' in opts ? opts.url : null;
      let storageArea = opts && 'storageArea' in opts ? opts.storageArea : null;
      let e = T$6.StorageEvent()[_as](html$.document[S._createEvent]("StorageEvent"));
      e[S$2._initStorageEvent](type, canBubble, cancelable, key, oldValue, newValue, url, storageArea);
      return e;
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 29192, 31, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : false;
      if (canBubble == null) dart.nullFailed(I[166], 29193, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : false;
      if (cancelable == null) dart.nullFailed(I[166], 29194, 12, "cancelable");
      let key = opts && 'key' in opts ? opts.key : null;
      let oldValue = opts && 'oldValue' in opts ? opts.oldValue : null;
      let newValue = opts && 'newValue' in opts ? opts.newValue : null;
      let url = opts && 'url' in opts ? opts.url : null;
      let storageArea = opts && 'storageArea' in opts ? opts.storageArea : null;
      return html$.StorageEvent.new(type, {canBubble: canBubble, cancelable: cancelable, key: key, oldValue: oldValue, newValue: newValue, url: url, storageArea: storageArea});
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 29206, 33, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.StorageEvent._create_1(type, eventInitDict_1);
      }
      return html$.StorageEvent._create_2(type);
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 29206, 33, "type");
      return html$.StorageEvent.__(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new StorageEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new StorageEvent(type);
    }
    get [S.$key]() {
      return this.key;
    }
    get [S$1.$newValue]() {
      return this.newValue;
    }
    get [S$1.$oldValue]() {
      return this.oldValue;
    }
    get [S$2.$storageArea]() {
      return this.storageArea;
    }
    get [S$.$url]() {
      return this.url;
    }
    [S$2._initStorageEvent](...args) {
      return this.initStorageEvent.apply(this, args);
    }
  };
  dart.addRtiResources(html$.StorageEvent, ["html|StorageEvent"]);
  dart.setMethodSignature(html$.StorageEvent, () => dart.global.Object.setPrototypeOf({[S$2._initStorageEvent]: T$6.StringNAndboolNAndboolN__Tovoid$4()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.StorageEvent))));
  dart.setStaticMethodSignature(html$.StorageEvent, () => ['new', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.StorageEvent, () => dart.global.Object.setPrototypeOf({
    [S.$key]: T$.StringN(),
    [S$1.$newValue]: T$.StringN(),
    [S$1.$oldValue]: T$.StringN(),
    [S$2.$storageArea]: T$6.StorageN(),
    [S$.$url]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.StorageEvent))));
  dart.setLibraryUri(html$.StorageEvent, I[167]);
  dart.registerExtension("StorageEvent", html$.StorageEvent);
  html$.StorageManager = class StorageManager extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.StorageManager.__();
    }
    [S$2.$estimate]() {
      return html$.promiseToFutureAsMap(this.estimate());
    }
    [S$2.$persist]() {
      return js_util.promiseToFuture(T$.bool(), this.persist());
    }
    [S$2.$persisted]() {
      return js_util.promiseToFuture(T$.bool(), this.persisted());
    }
  };
  dart.addRtiResources(html$.StorageManager, ["html|StorageManager"]);
  dart.setMethodSignature(html$.StorageManager, () => dart.global.Object.setPrototypeOf({
    [S$2.$estimate]: T$5.VoidToFutureOfMapNOfString$dynamic(),
    [S$2.$persist]: T$1.VoidToFutureOfbool(),
    [S$2.$persisted]: T$1.VoidToFutureOfbool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.StorageManager))));
  dart.setStaticMethodSignature(html$.StorageManager, () => ['__']);
  dart.setLibraryUri(html$.StorageManager, I[167]);
  dart.registerExtension("StorageManager", html$.StorageManager);
  html$.StyleElement = class StyleElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.StyleElement.__();
    }
    static new() {
      return html$.document.createElement("style");
    }
    static ['_#new#tearOff']() {
      return html$.StyleElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.StyleElement.created();
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$media]() {
      return this.media;
    }
    set [S$.$media](value) {
      this.media = value;
    }
    get [S$1.$sheet]() {
      return this.sheet;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
  };
  (html$.StyleElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.StyleElement).created.call(this);
    ;
  }).prototype = html$.StyleElement.prototype;
  dart.addRtiResources(html$.StyleElement, ["html|StyleElement"]);
  dart.setStaticMethodSignature(html$.StyleElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.StyleElement, () => dart.global.Object.setPrototypeOf({
    [S$.$disabled]: T$.bool(),
    [S$.$media]: T$.String(),
    [S$1.$sheet]: T$4.StyleSheetN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.StyleElement))));
  dart.setSetterSignature(html$.StyleElement, () => dart.global.Object.setPrototypeOf({
    [S$.$disabled]: T$.bool(),
    [S$.$media]: T$.String(),
    [S.$type]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.StyleElement))));
  dart.setLibraryUri(html$.StyleElement, I[167]);
  dart.registerExtension("HTMLStyleElement", html$.StyleElement);
  html$.StyleMedia = class StyleMedia extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.StyleMedia.__();
    }
    get [S.$type]() {
      return this.type;
    }
    [S$2.$matchMedium](...args) {
      return this.matchMedium.apply(this, args);
    }
  };
  dart.addRtiResources(html$.StyleMedia, ["html|StyleMedia"]);
  dart.setMethodSignature(html$.StyleMedia, () => dart.global.Object.setPrototypeOf({[S$2.$matchMedium]: T$6.StringNTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.StyleMedia))));
  dart.setStaticMethodSignature(html$.StyleMedia, () => ['__']);
  dart.setGetterSignature(html$.StyleMedia, () => dart.global.Object.setPrototypeOf({[S.$type]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.StyleMedia))));
  dart.setLibraryUri(html$.StyleMedia, I[167]);
  dart.registerExtension("StyleMedia", html$.StyleMedia);
  html$.StylePropertyMapReadonly = class StylePropertyMapReadonly extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.StylePropertyMapReadonly.__();
    }
    [S.$get](...args) {
      return this.get.apply(this, args);
    }
    [S.$getAll](...args) {
      return this.getAll.apply(this, args);
    }
    [S$2.$getProperties](...args) {
      return this.getProperties.apply(this, args);
    }
    [S$.$has](...args) {
      return this.has.apply(this, args);
    }
  };
  dart.addRtiResources(html$.StylePropertyMapReadonly, ["html|StylePropertyMapReadonly"]);
  dart.setMethodSignature(html$.StylePropertyMapReadonly, () => dart.global.Object.setPrototypeOf({
    [S.$get]: T$6.StringToCssStyleValueN(),
    [S.$getAll]: T$6.StringToListOfCssStyleValue(),
    [S$2.$getProperties]: T$2.VoidToListOfString(),
    [S$.$has]: T$.StringTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.StylePropertyMapReadonly))));
  dart.setStaticMethodSignature(html$.StylePropertyMapReadonly, () => ['__']);
  dart.setLibraryUri(html$.StylePropertyMapReadonly, I[167]);
  dart.registerExtension("StylePropertyMapReadonly", html$.StylePropertyMapReadonly);
  html$.StylePropertyMap = class StylePropertyMap extends html$.StylePropertyMapReadonly {
    static ['_#_#tearOff']() {
      return html$.StylePropertyMap.__();
    }
    [S.$append](...args) {
      return this.append.apply(this, args);
    }
    [S.$delete](...args) {
      return this.delete.apply(this, args);
    }
    [S$.$set](...args) {
      return this.set.apply(this, args);
    }
  };
  dart.addRtiResources(html$.StylePropertyMap, ["html|StylePropertyMap"]);
  dart.setMethodSignature(html$.StylePropertyMap, () => dart.global.Object.setPrototypeOf({
    [S.$append]: T$3.StringAndObjectTovoid(),
    [S.$delete]: T$.StringTovoid(),
    [S$.$set]: T$3.StringAndObjectTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.StylePropertyMap))));
  dart.setStaticMethodSignature(html$.StylePropertyMap, () => ['__']);
  dart.setLibraryUri(html$.StylePropertyMap, I[167]);
  dart.registerExtension("StylePropertyMap", html$.StylePropertyMap);
  html$.SyncEvent = class SyncEvent$ extends html$.ExtendableEvent {
    static ['_#_#tearOff']() {
      return html$.SyncEvent.__();
    }
    static new(type, init) {
      if (type == null) dart.nullFailed(I[166], 29399, 28, "type");
      if (init == null) dart.nullFailed(I[166], 29399, 38, "init");
      let init_1 = html_common.convertDartToNative_Dictionary(init);
      return html$.SyncEvent._create_1(type, init_1);
    }
    static ['_#new#tearOff'](type, init) {
      if (type == null) dart.nullFailed(I[166], 29399, 28, "type");
      if (init == null) dart.nullFailed(I[166], 29399, 38, "init");
      return html$.SyncEvent.new(type, init);
    }
    static _create_1(type, init) {
      return new SyncEvent(type, init);
    }
    get [S$2.$lastChance]() {
      return this.lastChance;
    }
    get [S$2.$tag]() {
      return this.tag;
    }
  };
  dart.addRtiResources(html$.SyncEvent, ["html|SyncEvent"]);
  dart.setStaticMethodSignature(html$.SyncEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.SyncEvent, () => dart.global.Object.setPrototypeOf({
    [S$2.$lastChance]: T$.boolN(),
    [S$2.$tag]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.SyncEvent))));
  dart.setLibraryUri(html$.SyncEvent, I[167]);
  dart.registerExtension("SyncEvent", html$.SyncEvent);
  html$.SyncManager = class SyncManager extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.SyncManager.__();
    }
    [S$2.$getTags]() {
      return js_util.promiseToFuture(T$.List(), this.getTags());
    }
    [S$2.$register](tag) {
      if (tag == null) dart.nullFailed(I[166], 29424, 26, "tag");
      return js_util.promiseToFuture(T$.dynamic(), this.register(tag));
    }
  };
  dart.addRtiResources(html$.SyncManager, ["html|SyncManager"]);
  dart.setMethodSignature(html$.SyncManager, () => dart.global.Object.setPrototypeOf({
    [S$2.$getTags]: T$4.VoidToFutureOfList(),
    [S$2.$register]: T$4.StringToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.SyncManager))));
  dart.setStaticMethodSignature(html$.SyncManager, () => ['__']);
  dart.setLibraryUri(html$.SyncManager, I[167]);
  dart.registerExtension("SyncManager", html$.SyncManager);
  html$.TableCaptionElement = class TableCaptionElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.TableCaptionElement.__();
    }
    static new() {
      return html$.document.createElement("caption");
    }
    static ['_#new#tearOff']() {
      return html$.TableCaptionElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.TableCaptionElement.created();
    }
  };
  (html$.TableCaptionElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TableCaptionElement).created.call(this);
    ;
  }).prototype = html$.TableCaptionElement.prototype;
  dart.addRtiResources(html$.TableCaptionElement, ["html|TableCaptionElement"]);
  dart.setStaticMethodSignature(html$.TableCaptionElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.TableCaptionElement, I[167]);
  dart.registerExtension("HTMLTableCaptionElement", html$.TableCaptionElement);
  html$.TableCellElement = class TableCellElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.TableCellElement.__();
    }
    static new() {
      return html$.document.createElement("td");
    }
    static ['_#new#tearOff']() {
      return html$.TableCellElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.TableCellElement.created();
    }
    get [S$2.$cellIndex]() {
      return this.cellIndex;
    }
    get [S$.$colSpan]() {
      return this.colSpan;
    }
    set [S$.$colSpan](value) {
      this.colSpan = value;
    }
    get [S$2.$headers]() {
      return this.headers;
    }
    set [S$2.$headers](value) {
      this.headers = value;
    }
    get [S$.$rowSpan]() {
      return this.rowSpan;
    }
    set [S$.$rowSpan](value) {
      this.rowSpan = value;
    }
  };
  (html$.TableCellElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TableCellElement).created.call(this);
    ;
  }).prototype = html$.TableCellElement.prototype;
  dart.addRtiResources(html$.TableCellElement, ["html|TableCellElement"]);
  dart.setStaticMethodSignature(html$.TableCellElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.TableCellElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$cellIndex]: T$.int(),
    [S$.$colSpan]: T$.int(),
    [S$2.$headers]: T$.String(),
    [S$.$rowSpan]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TableCellElement))));
  dart.setSetterSignature(html$.TableCellElement, () => dart.global.Object.setPrototypeOf({
    [S$.$colSpan]: T$.int(),
    [S$2.$headers]: T$.StringN(),
    [S$.$rowSpan]: T$.int()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TableCellElement))));
  dart.setLibraryUri(html$.TableCellElement, I[167]);
  dart.registerExtension("HTMLTableCellElement", html$.TableCellElement);
  dart.registerExtension("HTMLTableDataCellElement", html$.TableCellElement);
  dart.registerExtension("HTMLTableHeaderCellElement", html$.TableCellElement);
  html$.TableColElement = class TableColElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.TableColElement.__();
    }
    static new() {
      return html$.document.createElement("col");
    }
    static ['_#new#tearOff']() {
      return html$.TableColElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.TableColElement.created();
    }
    get [S$2.$span]() {
      return this.span;
    }
    set [S$2.$span](value) {
      this.span = value;
    }
  };
  (html$.TableColElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TableColElement).created.call(this);
    ;
  }).prototype = html$.TableColElement.prototype;
  dart.addRtiResources(html$.TableColElement, ["html|TableColElement"]);
  dart.setStaticMethodSignature(html$.TableColElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.TableColElement, () => dart.global.Object.setPrototypeOf({[S$2.$span]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TableColElement))));
  dart.setSetterSignature(html$.TableColElement, () => dart.global.Object.setPrototypeOf({[S$2.$span]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TableColElement))));
  dart.setLibraryUri(html$.TableColElement, I[167]);
  dart.registerExtension("HTMLTableColElement", html$.TableColElement);
  html$.TableElement = class TableElement extends html$.HtmlElement {
    get [S$2.$tBodies]() {
      return new (G$._WrappedListOfTableSectionElement()).new(this[S$2._tBodies]);
    }
    get [S$2.$rows]() {
      return new (G$._WrappedListOfTableRowElement()).new(this[S$2._rows]);
    }
    [S$2.$addRow]() {
      return this[S$2.$insertRow](-1);
    }
    [S$2.$createCaption]() {
      return this[S$2._createCaption]();
    }
    [S$2.$createTBody]() {
      return this[S$2._createTBody]();
    }
    [S$2.$createTFoot]() {
      return this[S$2._createTFoot]();
    }
    [S$2.$createTHead]() {
      return this[S$2._createTHead]();
    }
    [S$2.$insertRow](index) {
      if (index == null) dart.nullFailed(I[166], 29534, 33, "index");
      return this[S$2._insertRow](index);
    }
    [S$2._createTBody]() {
      if (!!this.createTBody) {
        return this[S$2._nativeCreateTBody]();
      }
      let tbody = html$.Element.tag("tbody");
      this[S.$children][$add](tbody);
      return T$6.TableSectionElement()[_as](tbody);
    }
    [S$2._nativeCreateTBody](...args) {
      return this.createTBody.apply(this, args);
    }
    [S.$createFragment](html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      if (dart.test(html$.Range.supportsCreateContextualFragment)) {
        return super[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer});
      }
      let contextualHtml = "<table>" + dart.str(html) + "</table>";
      let table = html$.Element.html(contextualHtml, {validator: validator, treeSanitizer: treeSanitizer});
      let fragment = html$.DocumentFragment.new();
      fragment[S.$nodes][$addAll](table[S.$nodes]);
      return fragment;
    }
    static ['_#_#tearOff']() {
      return html$.TableElement.__();
    }
    static new() {
      return html$.document.createElement("table");
    }
    static ['_#new#tearOff']() {
      return html$.TableElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.TableElement.created();
    }
    get [S$2.$caption]() {
      return this.caption;
    }
    set [S$2.$caption](value) {
      this.caption = value;
    }
    get [S$2._rows]() {
      return this.rows;
    }
    get [S$2._tBodies]() {
      return this.tBodies;
    }
    get [S$2.$tFoot]() {
      return this.tFoot;
    }
    set [S$2.$tFoot](value) {
      this.tFoot = value;
    }
    get [S$2.$tHead]() {
      return this.tHead;
    }
    set [S$2.$tHead](value) {
      this.tHead = value;
    }
    [S$2._createCaption](...args) {
      return this.createCaption.apply(this, args);
    }
    [S$2._createTFoot](...args) {
      return this.createTFoot.apply(this, args);
    }
    [S$2._createTHead](...args) {
      return this.createTHead.apply(this, args);
    }
    [S$2.$deleteCaption](...args) {
      return this.deleteCaption.apply(this, args);
    }
    [S$2.$deleteRow](...args) {
      return this.deleteRow.apply(this, args);
    }
    [S$2.$deleteTFoot](...args) {
      return this.deleteTFoot.apply(this, args);
    }
    [S$2.$deleteTHead](...args) {
      return this.deleteTHead.apply(this, args);
    }
    [S$2._insertRow](...args) {
      return this.insertRow.apply(this, args);
    }
  };
  (html$.TableElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TableElement).created.call(this);
    ;
  }).prototype = html$.TableElement.prototype;
  dart.addRtiResources(html$.TableElement, ["html|TableElement"]);
  dart.setMethodSignature(html$.TableElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$addRow]: T$6.VoidToTableRowElement(),
    [S$2.$createCaption]: T$6.VoidToTableCaptionElement(),
    [S$2.$createTBody]: T$6.VoidToTableSectionElement(),
    [S$2.$createTFoot]: T$6.VoidToTableSectionElement(),
    [S$2.$createTHead]: T$6.VoidToTableSectionElement(),
    [S$2.$insertRow]: T$6.intToTableRowElement(),
    [S$2._createTBody]: T$6.VoidToTableSectionElement(),
    [S$2._nativeCreateTBody]: T$6.VoidToTableSectionElement(),
    [S$2._createCaption]: T$6.VoidToTableCaptionElement(),
    [S$2._createTFoot]: T$6.VoidToTableSectionElement(),
    [S$2._createTHead]: T$6.VoidToTableSectionElement(),
    [S$2.$deleteCaption]: T$.VoidTovoid(),
    [S$2.$deleteRow]: T$.intTovoid(),
    [S$2.$deleteTFoot]: T$.VoidTovoid(),
    [S$2.$deleteTHead]: T$.VoidTovoid(),
    [S$2._insertRow]: T$6.intNToTableRowElement()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TableElement))));
  dart.setStaticMethodSignature(html$.TableElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.TableElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$tBodies]: T$6.ListOfTableSectionElement(),
    [S$2.$rows]: T$6.ListOfTableRowElement(),
    [S$2.$caption]: T$6.TableCaptionElementN(),
    [S$2._rows]: T$3.ListOfNode$1(),
    [S$2._tBodies]: T$3.ListOfNode$1(),
    [S$2.$tFoot]: T$6.TableSectionElementN(),
    [S$2.$tHead]: T$6.TableSectionElementN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TableElement))));
  dart.setSetterSignature(html$.TableElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$caption]: T$6.TableCaptionElementN(),
    [S$2.$tFoot]: T$6.TableSectionElementN(),
    [S$2.$tHead]: T$6.TableSectionElementN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TableElement))));
  dart.setLibraryUri(html$.TableElement, I[167]);
  dart.registerExtension("HTMLTableElement", html$.TableElement);
  html$.TableRowElement = class TableRowElement extends html$.HtmlElement {
    get [S$2.$cells]() {
      return new (G$._WrappedListOfTableCellElement()).new(this[S$2._cells]);
    }
    [S$2.$addCell]() {
      return this[S$2.$insertCell](-1);
    }
    [S$2.$insertCell](index) {
      if (index == null) dart.nullFailed(I[166], 29636, 35, "index");
      return T$6.TableCellElement()[_as](this[S$2._insertCell](index));
    }
    [S.$createFragment](html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      if (dart.test(html$.Range.supportsCreateContextualFragment)) {
        return super[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer});
      }
      let fragment = html$.DocumentFragment.new();
      let section = html$.TableElement.new()[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer})[S.$nodes][$single];
      let row = section[S.$nodes][$single];
      fragment[S.$nodes][$addAll](row[S.$nodes]);
      return fragment;
    }
    static ['_#_#tearOff']() {
      return html$.TableRowElement.__();
    }
    static new() {
      return html$.document.createElement("tr");
    }
    static ['_#new#tearOff']() {
      return html$.TableRowElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.TableRowElement.created();
    }
    get [S$2._cells]() {
      return this.cells;
    }
    get [S$.$rowIndex]() {
      return this.rowIndex;
    }
    get [S$2.$sectionRowIndex]() {
      return this.sectionRowIndex;
    }
    [S$2.$deleteCell](...args) {
      return this.deleteCell.apply(this, args);
    }
    [S$2._insertCell](...args) {
      return this.insertCell.apply(this, args);
    }
  };
  (html$.TableRowElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TableRowElement).created.call(this);
    ;
  }).prototype = html$.TableRowElement.prototype;
  dart.addRtiResources(html$.TableRowElement, ["html|TableRowElement"]);
  dart.setMethodSignature(html$.TableRowElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$addCell]: T$6.VoidToTableCellElement(),
    [S$2.$insertCell]: T$6.intToTableCellElement(),
    [S$2.$deleteCell]: T$.intTovoid(),
    [S$2._insertCell]: T$6.intNToHtmlElement()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TableRowElement))));
  dart.setStaticMethodSignature(html$.TableRowElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.TableRowElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$cells]: T$6.ListOfTableCellElement(),
    [S$2._cells]: T$3.ListOfNode$1(),
    [S$.$rowIndex]: T$.int(),
    [S$2.$sectionRowIndex]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TableRowElement))));
  dart.setLibraryUri(html$.TableRowElement, I[167]);
  dart.registerExtension("HTMLTableRowElement", html$.TableRowElement);
  html$.TableSectionElement = class TableSectionElement extends html$.HtmlElement {
    get [S$2.$rows]() {
      return new (G$._WrappedListOfTableRowElement()).new(this[S$2._rows]);
    }
    [S$2.$addRow]() {
      return this[S$2.$insertRow](-1);
    }
    [S$2.$insertRow](index) {
      if (index == null) dart.nullFailed(I[166], 29700, 33, "index");
      return T$6.TableRowElement()[_as](this[S$2._insertRow](index));
    }
    [S.$createFragment](html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      if (dart.test(html$.Range.supportsCreateContextualFragment)) {
        return super[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer});
      }
      let fragment = html$.DocumentFragment.new();
      let section = html$.TableElement.new()[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer})[S.$nodes][$single];
      fragment[S.$nodes][$addAll](section[S.$nodes]);
      return fragment;
    }
    static ['_#_#tearOff']() {
      return html$.TableSectionElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.TableSectionElement.created();
    }
    get [S$2._rows]() {
      return this.rows;
    }
    [S$2.$deleteRow](...args) {
      return this.deleteRow.apply(this, args);
    }
    [S$2._insertRow](...args) {
      return this.insertRow.apply(this, args);
    }
  };
  (html$.TableSectionElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TableSectionElement).created.call(this);
    ;
  }).prototype = html$.TableSectionElement.prototype;
  dart.addRtiResources(html$.TableSectionElement, ["html|TableSectionElement"]);
  dart.setMethodSignature(html$.TableSectionElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$addRow]: T$6.VoidToTableRowElement(),
    [S$2.$insertRow]: T$6.intToTableRowElement(),
    [S$2.$deleteRow]: T$.intTovoid(),
    [S$2._insertRow]: T$6.intNToHtmlElement()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TableSectionElement))));
  dart.setStaticMethodSignature(html$.TableSectionElement, () => ['__']);
  dart.setGetterSignature(html$.TableSectionElement, () => dart.global.Object.setPrototypeOf({
    [S$2.$rows]: T$6.ListOfTableRowElement(),
    [S$2._rows]: T$3.ListOfNode$1()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TableSectionElement))));
  dart.setLibraryUri(html$.TableSectionElement, I[167]);
  dart.registerExtension("HTMLTableSectionElement", html$.TableSectionElement);
  html$.TaskAttributionTiming = class TaskAttributionTiming extends html$.PerformanceEntry {
    static ['_#_#tearOff']() {
      return html$.TaskAttributionTiming.__();
    }
    get [S$2.$containerId]() {
      return this.containerId;
    }
    get [S$2.$containerName]() {
      return this.containerName;
    }
    get [S$2.$containerSrc]() {
      return this.containerSrc;
    }
    get [S$2.$containerType]() {
      return this.containerType;
    }
    get [S$2.$scriptUrl]() {
      return this.scriptURL;
    }
  };
  dart.addRtiResources(html$.TaskAttributionTiming, ["html|TaskAttributionTiming"]);
  dart.setStaticMethodSignature(html$.TaskAttributionTiming, () => ['__']);
  dart.setGetterSignature(html$.TaskAttributionTiming, () => dart.global.Object.setPrototypeOf({
    [S$2.$containerId]: T$.StringN(),
    [S$2.$containerName]: T$.StringN(),
    [S$2.$containerSrc]: T$.StringN(),
    [S$2.$containerType]: T$.StringN(),
    [S$2.$scriptUrl]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TaskAttributionTiming))));
  dart.setLibraryUri(html$.TaskAttributionTiming, I[167]);
  dart.registerExtension("TaskAttributionTiming", html$.TaskAttributionTiming);
  html$.TemplateElement = class TemplateElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.TemplateElement.__();
    }
    static new() {
      return T$6.TemplateElement()[_as](html$.document[S.$createElement]("template"));
    }
    static ['_#new#tearOff']() {
      return html$.TemplateElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.TemplateElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("template");
    }
    get [S$0.$content]() {
      return this.content;
    }
    [S.$setInnerHtml](html, opts) {
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      this[S.$text] = null;
      dart.nullCheck(this.content)[S.$nodes][$clear]();
      let fragment = this[S.$createFragment](html, {validator: validator, treeSanitizer: treeSanitizer});
      dart.nullCheck(this.content)[S.$append](fragment);
    }
  };
  (html$.TemplateElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TemplateElement).created.call(this);
    ;
  }).prototype = html$.TemplateElement.prototype;
  dart.addRtiResources(html$.TemplateElement, ["html|TemplateElement"]);
  dart.setStaticMethodSignature(html$.TemplateElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.TemplateElement, () => dart.global.Object.setPrototypeOf({[S$0.$content]: T$6.DocumentFragmentN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TemplateElement))));
  dart.setStaticGetterSignature(html$.TemplateElement, () => ['supported']);
  dart.setLibraryUri(html$.TemplateElement, I[167]);
  dart.registerExtension("HTMLTemplateElement", html$.TemplateElement);
  html$.TextAreaElement = class TextAreaElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.TextAreaElement.__();
    }
    static ['_#new#tearOff']() {
      return html$.TextAreaElement.new();
    }
    static new() {
      return html$.document.createElement("textarea");
    }
    static ['_#created#tearOff']() {
      return new html$.TextAreaElement.created();
    }
    get [S$1.$autocapitalize]() {
      return this.autocapitalize;
    }
    set [S$1.$autocapitalize](value) {
      this.autocapitalize = value;
    }
    get [S$.$autofocus]() {
      return this.autofocus;
    }
    set [S$.$autofocus](value) {
      this.autofocus = value;
    }
    get [S$2.$cols]() {
      return this.cols;
    }
    set [S$2.$cols](value) {
      this.cols = value;
    }
    get [S$1.$defaultValue]() {
      return this.defaultValue;
    }
    set [S$1.$defaultValue](value) {
      this.defaultValue = value;
    }
    get [S$1.$dirName]() {
      return this.dirName;
    }
    set [S$1.$dirName](value) {
      this.dirName = value;
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$form]() {
      return this.form;
    }
    get [S$.$labels]() {
      return this.labels;
    }
    get [S$1.$maxLength]() {
      return this.maxLength;
    }
    set [S$1.$maxLength](value) {
      this.maxLength = value;
    }
    get [S$1.$minLength]() {
      return this.minLength;
    }
    set [S$1.$minLength](value) {
      this.minLength = value;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S$.$placeholder]() {
      return this.placeholder;
    }
    set [S$.$placeholder](value) {
      this.placeholder = value;
    }
    get [S$.$readOnly]() {
      return this.readOnly;
    }
    set [S$.$readOnly](value) {
      this.readOnly = value;
    }
    get [S$.$required]() {
      return this.required;
    }
    set [S$.$required](value) {
      this.required = value;
    }
    get [S$2.$rows]() {
      return this.rows;
    }
    set [S$2.$rows](value) {
      this.rows = value;
    }
    get [S$1.$selectionDirection]() {
      return this.selectionDirection;
    }
    set [S$1.$selectionDirection](value) {
      this.selectionDirection = value;
    }
    get [S$1.$selectionEnd]() {
      return this.selectionEnd;
    }
    set [S$1.$selectionEnd](value) {
      this.selectionEnd = value;
    }
    get [S$1.$selectionStart]() {
      return this.selectionStart;
    }
    set [S$1.$selectionStart](value) {
      this.selectionStart = value;
    }
    get [S$2.$textLength]() {
      return this.textLength;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S$.$validationMessage]() {
      return this.validationMessage;
    }
    get [S$.$validity]() {
      return this.validity;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
    get [S$.$willValidate]() {
      return this.willValidate;
    }
    get [S$2.$wrap]() {
      return this.wrap;
    }
    set [S$2.$wrap](value) {
      this.wrap = value;
    }
    [S$.$checkValidity](...args) {
      return this.checkValidity.apply(this, args);
    }
    [S$.$reportValidity](...args) {
      return this.reportValidity.apply(this, args);
    }
    [S$.$select](...args) {
      return this.select.apply(this, args);
    }
    [S$.$setCustomValidity](...args) {
      return this.setCustomValidity.apply(this, args);
    }
    [S$1.$setRangeText](...args) {
      return this.setRangeText.apply(this, args);
    }
    [S$1.$setSelectionRange](...args) {
      return this.setSelectionRange.apply(this, args);
    }
  };
  (html$.TextAreaElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TextAreaElement).created.call(this);
    ;
  }).prototype = html$.TextAreaElement.prototype;
  dart.addRtiResources(html$.TextAreaElement, ["html|TextAreaElement"]);
  dart.setMethodSignature(html$.TextAreaElement, () => dart.global.Object.setPrototypeOf({
    [S$.$checkValidity]: T$.VoidTobool(),
    [S$.$reportValidity]: T$.VoidTobool(),
    [S$.$select]: T$.VoidTovoid(),
    [S$.$setCustomValidity]: T$.StringTovoid(),
    [S$1.$setRangeText]: T$5.String__Tovoid$6(),
    [S$1.$setSelectionRange]: T$5.intAndintAndStringNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TextAreaElement))));
  dart.setStaticMethodSignature(html$.TextAreaElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.TextAreaElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$autocapitalize]: T$.StringN(),
    [S$.$autofocus]: T$.bool(),
    [S$2.$cols]: T$.int(),
    [S$1.$defaultValue]: T$.StringN(),
    [S$1.$dirName]: T$.StringN(),
    [S$.$disabled]: T$.bool(),
    [S$.$form]: T$4.FormElementN(),
    [S$.$labels]: T$4.ListNOfNode(),
    [S$1.$maxLength]: T$.int(),
    [S$1.$minLength]: T$.int(),
    [$name]: T$.String(),
    [S$.$placeholder]: T$.String(),
    [S$.$readOnly]: T$.bool(),
    [S$.$required]: T$.bool(),
    [S$2.$rows]: T$.int(),
    [S$1.$selectionDirection]: T$.StringN(),
    [S$1.$selectionEnd]: T$.intN(),
    [S$1.$selectionStart]: T$.intN(),
    [S$2.$textLength]: T$.intN(),
    [S.$type]: T$.StringN(),
    [S$.$validationMessage]: T$.StringN(),
    [S$.$validity]: T.ValidityStateN(),
    [S.$value]: T$.StringN(),
    [S$.$willValidate]: T$.boolN(),
    [S$2.$wrap]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TextAreaElement))));
  dart.setSetterSignature(html$.TextAreaElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$autocapitalize]: T$.StringN(),
    [S$.$autofocus]: T$.bool(),
    [S$2.$cols]: T$.int(),
    [S$1.$defaultValue]: T$.StringN(),
    [S$1.$dirName]: T$.StringN(),
    [S$.$disabled]: T$.bool(),
    [S$1.$maxLength]: T$.int(),
    [S$1.$minLength]: T$.int(),
    [$name]: T$.String(),
    [S$.$placeholder]: T$.String(),
    [S$.$readOnly]: T$.bool(),
    [S$.$required]: T$.bool(),
    [S$2.$rows]: T$.int(),
    [S$1.$selectionDirection]: T$.StringN(),
    [S$1.$selectionEnd]: T$.intN(),
    [S$1.$selectionStart]: T$.intN(),
    [S.$value]: T$.StringN(),
    [S$2.$wrap]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TextAreaElement))));
  dart.setLibraryUri(html$.TextAreaElement, I[167]);
  dart.registerExtension("HTMLTextAreaElement", html$.TextAreaElement);
  html$.TextDetector = class TextDetector$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.TextDetector.__();
    }
    static new() {
      return html$.TextDetector._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.TextDetector.new();
    }
    static _create_1() {
      return new TextDetector();
    }
    [S$.$detect](image) {
      return js_util.promiseToFuture(T$.List(), this.detect(image));
    }
  };
  dart.addRtiResources(html$.TextDetector, ["html|TextDetector"]);
  dart.setMethodSignature(html$.TextDetector, () => dart.global.Object.setPrototypeOf({[S$.$detect]: T$4.dynamicToFutureOfList()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TextDetector))));
  dart.setStaticMethodSignature(html$.TextDetector, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$.TextDetector, I[167]);
  dart.registerExtension("TextDetector", html$.TextDetector);
  html$.TextEvent = class TextEvent extends html$.UIEvent {
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 29988, 28, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : false;
      if (canBubble == null) dart.nullFailed(I[166], 29989, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : false;
      if (cancelable == null) dart.nullFailed(I[166], 29990, 12, "cancelable");
      let view = opts && 'view' in opts ? opts.view : null;
      let data = opts && 'data' in opts ? opts.data : null;
      if (view == null) {
        view = html$.window;
      }
      let e = T$6.TextEvent()[_as](html$.document[S._createEvent]("TextEvent"));
      e[S$2._initTextEvent](type, canBubble, cancelable, view, data);
      return e;
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 29988, 28, "type");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : false;
      if (canBubble == null) dart.nullFailed(I[166], 29989, 13, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : false;
      if (cancelable == null) dart.nullFailed(I[166], 29990, 12, "cancelable");
      let view = opts && 'view' in opts ? opts.view : null;
      let data = opts && 'data' in opts ? opts.data : null;
      return html$.TextEvent.new(type, {canBubble: canBubble, cancelable: cancelable, view: view, data: data});
    }
    static ['_#_#tearOff']() {
      return html$.TextEvent.__();
    }
    get [S$.$data]() {
      return this.data;
    }
    [S$2._initTextEvent](...args) {
      return this.initTextEvent.apply(this, args);
    }
  };
  dart.addRtiResources(html$.TextEvent, ["html|TextEvent"]);
  dart.setMethodSignature(html$.TextEvent, () => dart.global.Object.setPrototypeOf({[S$2._initTextEvent]: T$4.StringNAndboolNAndboolN__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TextEvent))));
  dart.setStaticMethodSignature(html$.TextEvent, () => ['new', '__']);
  dart.setGetterSignature(html$.TextEvent, () => dart.global.Object.setPrototypeOf({[S$.$data]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TextEvent))));
  dart.setLibraryUri(html$.TextEvent, I[167]);
  dart.registerExtension("TextEvent", html$.TextEvent);
  html$.TextMetrics = class TextMetrics extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.TextMetrics.__();
    }
    get [S$2.$actualBoundingBoxAscent]() {
      return this.actualBoundingBoxAscent;
    }
    get [S$2.$actualBoundingBoxDescent]() {
      return this.actualBoundingBoxDescent;
    }
    get [S$2.$actualBoundingBoxLeft]() {
      return this.actualBoundingBoxLeft;
    }
    get [S$2.$actualBoundingBoxRight]() {
      return this.actualBoundingBoxRight;
    }
    get [S$2.$alphabeticBaseline]() {
      return this.alphabeticBaseline;
    }
    get [S$2.$emHeightAscent]() {
      return this.emHeightAscent;
    }
    get [S$2.$emHeightDescent]() {
      return this.emHeightDescent;
    }
    get [S$2.$fontBoundingBoxAscent]() {
      return this.fontBoundingBoxAscent;
    }
    get [S$2.$fontBoundingBoxDescent]() {
      return this.fontBoundingBoxDescent;
    }
    get [S$2.$hangingBaseline]() {
      return this.hangingBaseline;
    }
    get [S$2.$ideographicBaseline]() {
      return this.ideographicBaseline;
    }
    get [$width]() {
      return this.width;
    }
  };
  dart.addRtiResources(html$.TextMetrics, ["html|TextMetrics"]);
  dart.setStaticMethodSignature(html$.TextMetrics, () => ['__']);
  dart.setGetterSignature(html$.TextMetrics, () => dart.global.Object.setPrototypeOf({
    [S$2.$actualBoundingBoxAscent]: T$3.numN(),
    [S$2.$actualBoundingBoxDescent]: T$3.numN(),
    [S$2.$actualBoundingBoxLeft]: T$3.numN(),
    [S$2.$actualBoundingBoxRight]: T$3.numN(),
    [S$2.$alphabeticBaseline]: T$3.numN(),
    [S$2.$emHeightAscent]: T$3.numN(),
    [S$2.$emHeightDescent]: T$3.numN(),
    [S$2.$fontBoundingBoxAscent]: T$3.numN(),
    [S$2.$fontBoundingBoxDescent]: T$3.numN(),
    [S$2.$hangingBaseline]: T$3.numN(),
    [S$2.$ideographicBaseline]: T$3.numN(),
    [$width]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TextMetrics))));
  dart.setLibraryUri(html$.TextMetrics, I[167]);
  dart.registerExtension("TextMetrics", html$.TextMetrics);
  html$.TextTrack = class TextTrack extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.TextTrack.__();
    }
    get [S$2.$activeCues]() {
      return this.activeCues;
    }
    get [S$2.$cues]() {
      return this.cues;
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$.$kind]() {
      return this.kind;
    }
    get [S$.$label]() {
      return this.label;
    }
    get [S$2.$language]() {
      return this.language;
    }
    get [S.$mode]() {
      return this.mode;
    }
    set [S.$mode](value) {
      this.mode = value;
    }
    [S$2.$addCue](...args) {
      return this.addCue.apply(this, args);
    }
    [S$2.$removeCue](...args) {
      return this.removeCue.apply(this, args);
    }
    get [S$3.$onCueChange]() {
      return html$.TextTrack.cueChangeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.TextTrack, ["html|TextTrack"]);
  dart.setMethodSignature(html$.TextTrack, () => dart.global.Object.setPrototypeOf({
    [S$2.$addCue]: T$6.TextTrackCueTovoid(),
    [S$2.$removeCue]: T$6.TextTrackCueTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TextTrack))));
  dart.setStaticMethodSignature(html$.TextTrack, () => ['__']);
  dart.setGetterSignature(html$.TextTrack, () => dart.global.Object.setPrototypeOf({
    [S$2.$activeCues]: T$6.TextTrackCueListN(),
    [S$2.$cues]: T$6.TextTrackCueListN(),
    [S.$id]: T$.String(),
    [S$.$kind]: T$.String(),
    [S$.$label]: T$.String(),
    [S$2.$language]: T$.String(),
    [S.$mode]: T$.StringN(),
    [S$3.$onCueChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TextTrack))));
  dart.setSetterSignature(html$.TextTrack, () => dart.global.Object.setPrototypeOf({[S.$mode]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TextTrack))));
  dart.setLibraryUri(html$.TextTrack, I[167]);
  dart.setStaticFieldSignature(html$.TextTrack, () => ['cueChangeEvent']);
  dart.defineLazy(html$.TextTrack, {
    /*html$.TextTrack.cueChangeEvent*/get cueChangeEvent() {
      return C[435] || CT.C435;
    }
  }, false);
  dart.registerExtension("TextTrack", html$.TextTrack);
  html$.TextTrackCue = class TextTrackCue extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.TextTrackCue.__();
    }
    get [S$3.$endTime]() {
      return this.endTime;
    }
    set [S$3.$endTime](value) {
      this.endTime = value;
    }
    get [S.$id]() {
      return this.id;
    }
    set [S.$id](value) {
      this.id = value;
    }
    get [S$3.$pauseOnExit]() {
      return this.pauseOnExit;
    }
    set [S$3.$pauseOnExit](value) {
      this.pauseOnExit = value;
    }
    get [S$.$startTime]() {
      return this.startTime;
    }
    set [S$.$startTime](value) {
      this.startTime = value;
    }
    get [S$1.$track]() {
      return this.track;
    }
    get [S$3.$onEnter]() {
      return html$.TextTrackCue.enterEvent.forTarget(this);
    }
    get [S$3.$onExit]() {
      return html$.TextTrackCue.exitEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.TextTrackCue, ["html|TextTrackCue"]);
  dart.setStaticMethodSignature(html$.TextTrackCue, () => ['__']);
  dart.setGetterSignature(html$.TextTrackCue, () => dart.global.Object.setPrototypeOf({
    [S$3.$endTime]: T$3.numN(),
    [S.$id]: T$.StringN(),
    [S$3.$pauseOnExit]: T$.boolN(),
    [S$.$startTime]: T$3.numN(),
    [S$1.$track]: T$6.TextTrackN(),
    [S$3.$onEnter]: T$3.StreamOfEvent(),
    [S$3.$onExit]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TextTrackCue))));
  dart.setSetterSignature(html$.TextTrackCue, () => dart.global.Object.setPrototypeOf({
    [S$3.$endTime]: T$3.numN(),
    [S.$id]: T$.StringN(),
    [S$3.$pauseOnExit]: T$.boolN(),
    [S$.$startTime]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TextTrackCue))));
  dart.setLibraryUri(html$.TextTrackCue, I[167]);
  dart.setStaticFieldSignature(html$.TextTrackCue, () => ['enterEvent', 'exitEvent']);
  dart.defineLazy(html$.TextTrackCue, {
    /*html$.TextTrackCue.enterEvent*/get enterEvent() {
      return C[436] || CT.C436;
    },
    /*html$.TextTrackCue.exitEvent*/get exitEvent() {
      return C[437] || CT.C437;
    }
  }, false);
  dart.registerExtension("TextTrackCue", html$.TextTrackCue);
  const JavaScriptObject_ListBase$36$6 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$6.new = function() {
    G$.ListBaseOfTextTrackCue().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$6).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$6.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$6, G$.ListBaseOfTextTrackCue());
  const JavaScriptObject_ImmutableListMixin$36$6 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$6 {};
  (JavaScriptObject_ImmutableListMixin$36$6.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$6).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$6.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$6, G$.ImmutableListMixinOfTextTrackCue());
  html$.TextTrackCueList = class TextTrackCueList extends JavaScriptObject_ImmutableListMixin$36$6 {
    static ['_#_#tearOff']() {
      return html$.TextTrackCueList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 30157, 32, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 30163, 25, "index");
      T$6.TextTrackCue()[_as](value);
      if (value == null) dart.nullFailed(I[166], 30163, 45, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 30169, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 30197, 30, "index");
      return this[$_get](index);
    }
    [S$.__getter__](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$3.$getCueById](...args) {
      return this.getCueById.apply(this, args);
    }
  };
  dart.addRtiResources(html$.TextTrackCueList, ["html|TextTrackCueList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.TextTrackCueList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$6.intToTextTrackCue(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.__getter__]: T$6.intToTextTrackCue(),
    [S$3.$getCueById]: T$6.StringToTextTrackCueN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TextTrackCueList))));
  dart.setStaticMethodSignature(html$.TextTrackCueList, () => ['__']);
  dart.setGetterSignature(html$.TextTrackCueList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TextTrackCueList))));
  dart.setSetterSignature(html$.TextTrackCueList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TextTrackCueList))));
  dart.setLibraryUri(html$.TextTrackCueList, I[167]);
  dart.registerExtension("TextTrackCueList", html$.TextTrackCueList);
  const EventTarget_ListBase$36$ = class EventTarget_ListBase extends html$.EventTarget {};
  (EventTarget_ListBase$36$._created = function() {
    G$.ListBaseOfTextTrack().new.call(this);
    dart.global.Object.getPrototypeOf(EventTarget_ListBase$36$)._created.call(this);
  }).prototype = EventTarget_ListBase$36$.prototype;
  dart.applyMixin(EventTarget_ListBase$36$, G$.ListBaseOfTextTrack());
  const EventTarget_ImmutableListMixin$36$ = class EventTarget_ImmutableListMixin extends EventTarget_ListBase$36$ {};
  (EventTarget_ImmutableListMixin$36$._created = function() {
    dart.global.Object.getPrototypeOf(EventTarget_ImmutableListMixin$36$)._created.call(this);
  }).prototype = EventTarget_ImmutableListMixin$36$.prototype;
  dart.applyMixin(EventTarget_ImmutableListMixin$36$, G$.ImmutableListMixinOfTextTrack());
  html$.TextTrackList = class TextTrackList extends EventTarget_ImmutableListMixin$36$ {
    static ['_#_#tearOff']() {
      return html$.TextTrackList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 30231, 29, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 30237, 25, "index");
      T$6.TextTrack()[_as](value);
      if (value == null) dart.nullFailed(I[166], 30237, 42, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 30243, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 30271, 27, "index");
      return this[$_get](index);
    }
    [S$.__getter__](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$1.$getTrackById](...args) {
      return this.getTrackById.apply(this, args);
    }
    get [S$1.$onAddTrack]() {
      return html$.TextTrackList.addTrackEvent.forTarget(this);
    }
    get [S.$onChange]() {
      return html$.TextTrackList.changeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.TextTrackList, ["html|TextTrackList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.TextTrackList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$6.intToTextTrack(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.__getter__]: T$6.intToTextTrack(),
    [S$1.$getTrackById]: T$6.StringToTextTrackN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TextTrackList))));
  dart.setStaticMethodSignature(html$.TextTrackList, () => ['__']);
  dart.setGetterSignature(html$.TextTrackList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.int(),
    [S$1.$onAddTrack]: T$6.StreamOfTrackEvent(),
    [S.$onChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TextTrackList))));
  dart.setSetterSignature(html$.TextTrackList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TextTrackList))));
  dart.setLibraryUri(html$.TextTrackList, I[167]);
  dart.setStaticFieldSignature(html$.TextTrackList, () => ['addTrackEvent', 'changeEvent']);
  dart.defineLazy(html$.TextTrackList, {
    /*html$.TextTrackList.addTrackEvent*/get addTrackEvent() {
      return C[438] || CT.C438;
    },
    /*html$.TextTrackList.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    }
  }, false);
  dart.registerExtension("TextTrackList", html$.TextTrackList);
  html$.TimeElement = class TimeElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.TimeElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.TimeElement.created();
    }
    get [S$1.$dateTime]() {
      return this.dateTime;
    }
    set [S$1.$dateTime](value) {
      this.dateTime = value;
    }
  };
  (html$.TimeElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TimeElement).created.call(this);
    ;
  }).prototype = html$.TimeElement.prototype;
  dart.addRtiResources(html$.TimeElement, ["html|TimeElement"]);
  dart.setStaticMethodSignature(html$.TimeElement, () => ['__']);
  dart.setGetterSignature(html$.TimeElement, () => dart.global.Object.setPrototypeOf({[S$1.$dateTime]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TimeElement))));
  dart.setSetterSignature(html$.TimeElement, () => dart.global.Object.setPrototypeOf({[S$1.$dateTime]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TimeElement))));
  dart.setLibraryUri(html$.TimeElement, I[167]);
  dart.registerExtension("HTMLTimeElement", html$.TimeElement);
  html$.TimeRanges = class TimeRanges extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.TimeRanges.__();
    }
    get [$length]() {
      return this.length;
    }
    [S$3.$end](...args) {
      return this.end.apply(this, args);
    }
    [S$.$start](...args) {
      return this.start.apply(this, args);
    }
  };
  dart.addRtiResources(html$.TimeRanges, ["html|TimeRanges"]);
  dart.setMethodSignature(html$.TimeRanges, () => dart.global.Object.setPrototypeOf({
    [S$3.$end]: T$0.intTodouble(),
    [S$.$start]: T$0.intTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TimeRanges))));
  dart.setStaticMethodSignature(html$.TimeRanges, () => ['__']);
  dart.setGetterSignature(html$.TimeRanges, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TimeRanges))));
  dart.setLibraryUri(html$.TimeRanges, I[167]);
  dart.registerExtension("TimeRanges", html$.TimeRanges);
  html$.TitleElement = class TitleElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.TitleElement.__();
    }
    static new() {
      return html$.document.createElement("title");
    }
    static ['_#new#tearOff']() {
      return html$.TitleElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.TitleElement.created();
    }
  };
  (html$.TitleElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TitleElement).created.call(this);
    ;
  }).prototype = html$.TitleElement.prototype;
  dart.addRtiResources(html$.TitleElement, ["html|TitleElement"]);
  dart.setStaticMethodSignature(html$.TitleElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.TitleElement, I[167]);
  dart.registerExtension("HTMLTitleElement", html$.TitleElement);
  html$.Touch = class Touch$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.Touch.__();
    }
    static new(initDict) {
      if (initDict == null) dart.nullFailed(I[166], 30363, 21, "initDict");
      let initDict_1 = html_common.convertDartToNative_Dictionary(initDict);
      return html$.Touch._create_1(initDict_1);
    }
    static ['_#new#tearOff'](initDict) {
      if (initDict == null) dart.nullFailed(I[166], 30363, 21, "initDict");
      return html$.Touch.new(initDict);
    }
    static _create_1(initDict) {
      return new Touch(initDict);
    }
    get [S$1._clientX]() {
      return this.clientX;
    }
    get [S$1._clientY]() {
      return this.clientY;
    }
    get [S$3.$force]() {
      return this.force;
    }
    get [S$3.$identifier]() {
      return this.identifier;
    }
    get [S$1._pageX]() {
      return this.pageX;
    }
    get [S$1._pageY]() {
      return this.pageY;
    }
    get [S$3._radiusX]() {
      return this.radiusX;
    }
    get [S$3._radiusY]() {
      return this.radiusY;
    }
    get [S$1.$region]() {
      return this.region;
    }
    get [S$3.$rotationAngle]() {
      return this.rotationAngle;
    }
    get [S$1._screenX]() {
      return this.screenX;
    }
    get [S$1._screenY]() {
      return this.screenY;
    }
    get [S.$target]() {
      return html$._convertNativeToDart_EventTarget(this[S._get_target]);
    }
    get [S._get_target]() {
      return this.target;
    }
    get [S$3.__clientX]() {
      return this.clientX[$round]();
    }
    get [S$3.__clientY]() {
      return this.clientY[$round]();
    }
    get [S$3.__screenX]() {
      return this.screenX[$round]();
    }
    get [S$3.__screenY]() {
      return this.screenY[$round]();
    }
    get [S$3.__pageX]() {
      return this.pageX[$round]();
    }
    get [S$3.__pageY]() {
      return this.pageY[$round]();
    }
    get [S$3.__radiusX]() {
      return this.radiusX[$round]();
    }
    get [S$3.__radiusY]() {
      return this.radiusY[$round]();
    }
    get [S.$client]() {
      return new (G.PointOfnum()).new(this[S$3.__clientX], this[S$3.__clientY]);
    }
    get [S$0.$page]() {
      return new (G.PointOfnum()).new(this[S$3.__pageX], this[S$3.__pageY]);
    }
    get [S$1.$screen]() {
      return new (G.PointOfnum()).new(this[S$3.__screenX], this[S$3.__screenY]);
    }
    get [S$3.$radiusX]() {
      return this[S$3.__radiusX];
    }
    get [S$3.$radiusY]() {
      return this[S$3.__radiusY];
    }
  };
  dart.addRtiResources(html$.Touch, ["html|Touch"]);
  dart.setStaticMethodSignature(html$.Touch, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.Touch, () => dart.global.Object.setPrototypeOf({
    [S$1._clientX]: T$3.numN(),
    [S$1._clientY]: T$3.numN(),
    [S$3.$force]: T$3.numN(),
    [S$3.$identifier]: T$.intN(),
    [S$1._pageX]: T$3.numN(),
    [S$1._pageY]: T$3.numN(),
    [S$3._radiusX]: T$3.numN(),
    [S$3._radiusY]: T$3.numN(),
    [S$1.$region]: T$.StringN(),
    [S$3.$rotationAngle]: T$3.numN(),
    [S$1._screenX]: T$3.numN(),
    [S$1._screenY]: T$3.numN(),
    [S.$target]: T$3.EventTargetN(),
    [S._get_target]: T$.dynamic(),
    [S$3.__clientX]: T$.int(),
    [S$3.__clientY]: T$.int(),
    [S$3.__screenX]: T$.int(),
    [S$3.__screenY]: T$.int(),
    [S$3.__pageX]: T$.int(),
    [S$3.__pageY]: T$.int(),
    [S$3.__radiusX]: T$.int(),
    [S$3.__radiusY]: T$.int(),
    [S.$client]: T$3.PointOfnum(),
    [S$0.$page]: T$3.PointOfnum(),
    [S$1.$screen]: T$3.PointOfnum(),
    [S$3.$radiusX]: T$.int(),
    [S$3.$radiusY]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Touch))));
  dart.setLibraryUri(html$.Touch, I[167]);
  dart.registerExtension("Touch", html$.Touch);
  html$.TouchEvent = class TouchEvent$ extends html$.UIEvent {
    static ['_#_#tearOff']() {
      return html$.TouchEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 30445, 29, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.TouchEvent._create_1(type, eventInitDict_1);
      }
      return html$.TouchEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 30445, 29, "type");
      return html$.TouchEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new TouchEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new TouchEvent(type);
    }
    get [S$1.$altKey]() {
      return this.altKey;
    }
    get [S$3.$changedTouches]() {
      return this.changedTouches;
    }
    get [S$1.$ctrlKey]() {
      return this.ctrlKey;
    }
    get [S$1.$metaKey]() {
      return this.metaKey;
    }
    get [S$1.$shiftKey]() {
      return this.shiftKey;
    }
    get [S$3.$targetTouches]() {
      return this.targetTouches;
    }
    get [S$3.$touches]() {
      return this.touches;
    }
    static get supported() {
      try {
        return T$6.TouchEvent()[_is](html$.TouchEvent.new("touches"));
      } catch (t$36$35e) {
        let _ = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](_)) {
        } else
          throw t$36$35e;
      }
      return false;
    }
  };
  dart.addRtiResources(html$.TouchEvent, ["html|TouchEvent"]);
  dart.setStaticMethodSignature(html$.TouchEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.TouchEvent, () => dart.global.Object.setPrototypeOf({
    [S$1.$altKey]: T$.boolN(),
    [S$3.$changedTouches]: T$6.TouchListN(),
    [S$1.$ctrlKey]: T$.boolN(),
    [S$1.$metaKey]: T$.boolN(),
    [S$1.$shiftKey]: T$.boolN(),
    [S$3.$targetTouches]: T$6.TouchListN(),
    [S$3.$touches]: T$6.TouchListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TouchEvent))));
  dart.setStaticGetterSignature(html$.TouchEvent, () => ['supported']);
  dart.setLibraryUri(html$.TouchEvent, I[167]);
  dart.registerExtension("TouchEvent", html$.TouchEvent);
  const JavaScriptObject_ListBase$36$7 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$7.new = function() {
    G$.ListBaseOfTouch().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$7).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$7.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$7, G$.ListBaseOfTouch());
  const JavaScriptObject_ImmutableListMixin$36$7 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$7 {};
  (JavaScriptObject_ImmutableListMixin$36$7.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$7).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$7.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$7, G$.ImmutableListMixinOfTouch());
  html$.TouchList = class TouchList extends JavaScriptObject_ImmutableListMixin$36$7 {
    static ['_#_#tearOff']() {
      return html$.TouchList.__();
    }
    static get supported() {
      return !!document.createTouchList;
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 30500, 25, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 30506, 25, "index");
      T$6.Touch()[_as](value);
      if (value == null) dart.nullFailed(I[166], 30506, 38, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 30512, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 30540, 23, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.TouchList, ["html|TouchList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$.TouchList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$6.intToTouch(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T$6.intToTouchN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TouchList))));
  dart.setStaticMethodSignature(html$.TouchList, () => ['__']);
  dart.setGetterSignature(html$.TouchList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TouchList))));
  dart.setSetterSignature(html$.TouchList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TouchList))));
  dart.setStaticGetterSignature(html$.TouchList, () => ['supported']);
  dart.setLibraryUri(html$.TouchList, I[167]);
  dart.registerExtension("TouchList", html$.TouchList);
  html$.TrackDefault = class TrackDefault$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.TrackDefault.__();
    }
    static new(type, language, label, kinds, byteStreamTrackID = null) {
      if (type == null) dart.nullFailed(I[166], 30557, 14, "type");
      if (language == null) dart.nullFailed(I[166], 30557, 27, "language");
      if (label == null) dart.nullFailed(I[166], 30557, 44, "label");
      if (kinds == null) dart.nullFailed(I[166], 30557, 64, "kinds");
      if (byteStreamTrackID != null) {
        let kinds_1 = html_common.convertDartToNative_StringArray(kinds);
        return html$.TrackDefault._create_1(type, language, label, kinds_1, byteStreamTrackID);
      }
      let kinds_1 = html_common.convertDartToNative_StringArray(kinds);
      return html$.TrackDefault._create_2(type, language, label, kinds_1);
    }
    static ['_#new#tearOff'](type, language, label, kinds, byteStreamTrackID = null) {
      if (type == null) dart.nullFailed(I[166], 30557, 14, "type");
      if (language == null) dart.nullFailed(I[166], 30557, 27, "language");
      if (label == null) dart.nullFailed(I[166], 30557, 44, "label");
      if (kinds == null) dart.nullFailed(I[166], 30557, 64, "kinds");
      return html$.TrackDefault.new(type, language, label, kinds, byteStreamTrackID);
    }
    static _create_1(type, language, label, kinds, byteStreamTrackID) {
      return new TrackDefault(type, language, label, kinds, byteStreamTrackID);
    }
    static _create_2(type, language, label, kinds) {
      return new TrackDefault(type, language, label, kinds);
    }
    get [S$3.$byteStreamTrackID]() {
      return this.byteStreamTrackID;
    }
    get [S$3.$kinds]() {
      return this.kinds;
    }
    get [S$.$label]() {
      return this.label;
    }
    get [S$2.$language]() {
      return this.language;
    }
    get [S.$type]() {
      return this.type;
    }
  };
  dart.addRtiResources(html$.TrackDefault, ["html|TrackDefault"]);
  dart.setStaticMethodSignature(html$.TrackDefault, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.TrackDefault, () => dart.global.Object.setPrototypeOf({
    [S$3.$byteStreamTrackID]: T$.StringN(),
    [S$3.$kinds]: T$.ObjectN(),
    [S$.$label]: T$.StringN(),
    [S$2.$language]: T$.StringN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TrackDefault))));
  dart.setLibraryUri(html$.TrackDefault, I[167]);
  dart.registerExtension("TrackDefault", html$.TrackDefault);
  html$.TrackDefaultList = class TrackDefaultList$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.TrackDefaultList.__();
    }
    static new(trackDefaults = null) {
      if (trackDefaults != null) {
        return html$.TrackDefaultList._create_1(trackDefaults);
      }
      return html$.TrackDefaultList._create_2();
    }
    static ['_#new#tearOff'](trackDefaults = null) {
      return html$.TrackDefaultList.new(trackDefaults);
    }
    static _create_1(trackDefaults) {
      return new TrackDefaultList(trackDefaults);
    }
    static _create_2() {
      return new TrackDefaultList();
    }
    get [$length]() {
      return this.length;
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$.TrackDefaultList, ["html|TrackDefaultList"]);
  dart.setMethodSignature(html$.TrackDefaultList, () => dart.global.Object.setPrototypeOf({[S$.$item]: T$6.intToTrackDefault()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TrackDefaultList))));
  dart.setStaticMethodSignature(html$.TrackDefaultList, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.TrackDefaultList, () => dart.global.Object.setPrototypeOf({[$length]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TrackDefaultList))));
  dart.setLibraryUri(html$.TrackDefaultList, I[167]);
  dart.registerExtension("TrackDefaultList", html$.TrackDefaultList);
  html$.TrackElement = class TrackElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.TrackElement.__();
    }
    static new() {
      return T$6.TrackElement()[_as](html$.document[S.$createElement]("track"));
    }
    static ['_#new#tearOff']() {
      return html$.TrackElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.TrackElement.created();
    }
    static get supported() {
      return html$.Element.isTagSupported("track");
    }
    get [S$1.$defaultValue]() {
      return this.default;
    }
    set [S$1.$defaultValue](value) {
      this.default = value;
    }
    get [S$.$kind]() {
      return this.kind;
    }
    set [S$.$kind](value) {
      this.kind = value;
    }
    get [S$.$label]() {
      return this.label;
    }
    set [S$.$label](value) {
      this.label = value;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    get [S$.$src]() {
      return this.src;
    }
    set [S$.$src](value) {
      this.src = value;
    }
    get [S$3.$srclang]() {
      return this.srclang;
    }
    set [S$3.$srclang](value) {
      this.srclang = value;
    }
    get [S$1.$track]() {
      return this.track;
    }
  };
  (html$.TrackElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.TrackElement).created.call(this);
    ;
  }).prototype = html$.TrackElement.prototype;
  dart.addRtiResources(html$.TrackElement, ["html|TrackElement"]);
  dart.setStaticMethodSignature(html$.TrackElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.TrackElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$defaultValue]: T$.boolN(),
    [S$.$kind]: T$.StringN(),
    [S$.$label]: T$.StringN(),
    [S.$readyState]: T$.intN(),
    [S$.$src]: T$.StringN(),
    [S$3.$srclang]: T$.StringN(),
    [S$1.$track]: T$6.TextTrackN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TrackElement))));
  dart.setSetterSignature(html$.TrackElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$defaultValue]: T$.boolN(),
    [S$.$kind]: T$.StringN(),
    [S$.$label]: T$.StringN(),
    [S$.$src]: T$.StringN(),
    [S$3.$srclang]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TrackElement))));
  dart.setStaticGetterSignature(html$.TrackElement, () => ['supported']);
  dart.setLibraryUri(html$.TrackElement, I[167]);
  dart.setStaticFieldSignature(html$.TrackElement, () => ['ERROR', 'LOADED', 'LOADING', 'NONE']);
  dart.defineLazy(html$.TrackElement, {
    /*html$.TrackElement.ERROR*/get ERROR() {
      return 3;
    },
    /*html$.TrackElement.LOADED*/get LOADED() {
      return 2;
    },
    /*html$.TrackElement.LOADING*/get LOADING() {
      return 1;
    },
    /*html$.TrackElement.NONE*/get NONE() {
      return 0;
    }
  }, false);
  dart.registerExtension("HTMLTrackElement", html$.TrackElement);
  html$.TrackEvent = class TrackEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.TrackEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 30686, 29, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.TrackEvent._create_1(type, eventInitDict_1);
      }
      return html$.TrackEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 30686, 29, "type");
      return html$.TrackEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new TrackEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new TrackEvent(type);
    }
    get [S$1.$track]() {
      return this.track;
    }
  };
  dart.addRtiResources(html$.TrackEvent, ["html|TrackEvent"]);
  dart.setStaticMethodSignature(html$.TrackEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.TrackEvent, () => dart.global.Object.setPrototypeOf({[S$1.$track]: T$.ObjectN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TrackEvent))));
  dart.setLibraryUri(html$.TrackEvent, I[167]);
  dart.registerExtension("TrackEvent", html$.TrackEvent);
  html$.TransitionEvent = class TransitionEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.TransitionEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 30712, 34, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.TransitionEvent._create_1(type, eventInitDict_1);
      }
      return html$.TransitionEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 30712, 34, "type");
      return html$.TransitionEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new TransitionEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new TransitionEvent(type);
    }
    get [S$.$elapsedTime]() {
      return this.elapsedTime;
    }
    get [S$3.$propertyName]() {
      return this.propertyName;
    }
    get [S$3.$pseudoElement]() {
      return this.pseudoElement;
    }
  };
  dart.addRtiResources(html$.TransitionEvent, ["html|TransitionEvent"]);
  dart.setStaticMethodSignature(html$.TransitionEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.TransitionEvent, () => dart.global.Object.setPrototypeOf({
    [S$.$elapsedTime]: T$3.numN(),
    [S$3.$propertyName]: T$.StringN(),
    [S$3.$pseudoElement]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TransitionEvent))));
  dart.setLibraryUri(html$.TransitionEvent, I[167]);
  dart.registerExtension("TransitionEvent", html$.TransitionEvent);
  dart.registerExtension("WebKitTransitionEvent", html$.TransitionEvent);
  html$.TreeWalker = class TreeWalker extends _interceptors.JavaScriptObject {
    static new(root, whatToShow) {
      if (root == null) dart.nullFailed(I[166], 30737, 27, "root");
      if (whatToShow == null) dart.nullFailed(I[166], 30737, 37, "whatToShow");
      return html$.document[S$1._createTreeWalker](root, whatToShow, null);
    }
    static ['_#new#tearOff'](root, whatToShow) {
      if (root == null) dart.nullFailed(I[166], 30737, 27, "root");
      if (whatToShow == null) dart.nullFailed(I[166], 30737, 37, "whatToShow");
      return html$.TreeWalker.new(root, whatToShow);
    }
    static ['_#_#tearOff']() {
      return html$.TreeWalker.__();
    }
    get [S$3.$currentNode]() {
      return this.currentNode;
    }
    set [S$3.$currentNode](value) {
      this.currentNode = value;
    }
    get [S$.$filter]() {
      return this.filter;
    }
    get [S$1.$root]() {
      return this.root;
    }
    get [S$2.$whatToShow]() {
      return this.whatToShow;
    }
    [S$.$firstChild](...args) {
      return this.firstChild.apply(this, args);
    }
    [S$.$lastChild](...args) {
      return this.lastChild.apply(this, args);
    }
    [S.$nextNode](...args) {
      return this.nextNode.apply(this, args);
    }
    [S$1.$nextSibling](...args) {
      return this.nextSibling.apply(this, args);
    }
    [S$.$parentNode](...args) {
      return this.parentNode.apply(this, args);
    }
    [S$.$previousNode](...args) {
      return this.previousNode.apply(this, args);
    }
    [S$1.$previousSibling](...args) {
      return this.previousSibling.apply(this, args);
    }
  };
  dart.addRtiResources(html$.TreeWalker, ["html|TreeWalker"]);
  dart.setMethodSignature(html$.TreeWalker, () => dart.global.Object.setPrototypeOf({
    [S$.$firstChild]: T.VoidToNodeN(),
    [S$.$lastChild]: T.VoidToNodeN(),
    [S.$nextNode]: T.VoidToNodeN(),
    [S$1.$nextSibling]: T.VoidToNodeN(),
    [S$.$parentNode]: T.VoidToNodeN(),
    [S$.$previousNode]: T.VoidToNodeN(),
    [S$1.$previousSibling]: T.VoidToNodeN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.TreeWalker))));
  dart.setStaticMethodSignature(html$.TreeWalker, () => ['new', '__']);
  dart.setGetterSignature(html$.TreeWalker, () => dart.global.Object.setPrototypeOf({
    [S$3.$currentNode]: T$5.Node(),
    [S$.$filter]: T$6.NodeFilterN(),
    [S$1.$root]: T$5.Node(),
    [S$2.$whatToShow]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.TreeWalker))));
  dart.setSetterSignature(html$.TreeWalker, () => dart.global.Object.setPrototypeOf({[S$3.$currentNode]: T$5.Node()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.TreeWalker))));
  dart.setLibraryUri(html$.TreeWalker, I[167]);
  dart.registerExtension("TreeWalker", html$.TreeWalker);
  html$.TrustedHtml = class TrustedHtml extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.TrustedHtml.__();
    }
  };
  dart.addRtiResources(html$.TrustedHtml, ["html|TrustedHtml"]);
  dart.setStaticMethodSignature(html$.TrustedHtml, () => ['__', 'escape', 'unsafelyCreate']);
  dart.setLibraryUri(html$.TrustedHtml, I[167]);
  dart.registerExtension("TrustedHTML", html$.TrustedHtml);
  html$.TrustedScriptUrl = class TrustedScriptUrl extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.TrustedScriptUrl.__();
    }
  };
  dart.addRtiResources(html$.TrustedScriptUrl, ["html|TrustedScriptUrl"]);
  dart.setStaticMethodSignature(html$.TrustedScriptUrl, () => ['__', 'unsafelyCreate']);
  dart.setLibraryUri(html$.TrustedScriptUrl, I[167]);
  dart.registerExtension("TrustedScriptURL", html$.TrustedScriptUrl);
  html$.TrustedUrl = class TrustedUrl extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.TrustedUrl.__();
    }
  };
  dart.addRtiResources(html$.TrustedUrl, ["html|TrustedUrl"]);
  dart.setStaticMethodSignature(html$.TrustedUrl, () => ['__', 'create', 'unsafelyCreate']);
  dart.setLibraryUri(html$.TrustedUrl, I[167]);
  dart.registerExtension("TrustedURL", html$.TrustedUrl);
  html$.UListElement = class UListElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.UListElement.__();
    }
    static new() {
      return html$.document.createElement("ul");
    }
    static ['_#new#tearOff']() {
      return html$.UListElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.UListElement.created();
    }
  };
  (html$.UListElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.UListElement).created.call(this);
    ;
  }).prototype = html$.UListElement.prototype;
  dart.addRtiResources(html$.UListElement, ["html|UListElement"]);
  dart.setStaticMethodSignature(html$.UListElement, () => ['__', 'new']);
  dart.setLibraryUri(html$.UListElement, I[167]);
  dart.registerExtension("HTMLUListElement", html$.UListElement);
  html$.UnderlyingSourceBase = class UnderlyingSourceBase extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.UnderlyingSourceBase.__();
    }
    [S$.$cancel](reason) {
      return js_util.promiseToFuture(T$.dynamic(), this.cancel(reason));
    }
    [S$3.$notifyLockAcquired](...args) {
      return this.notifyLockAcquired.apply(this, args);
    }
    [S$3.$notifyLockReleased](...args) {
      return this.notifyLockReleased.apply(this, args);
    }
    [S$3.$pull]() {
      return js_util.promiseToFuture(T$.dynamic(), this.pull());
    }
    [S$.$start](stream) {
      if (stream == null) dart.nullFailed(I[166], 30911, 23, "stream");
      return js_util.promiseToFuture(T$.dynamic(), this.start(stream));
    }
  };
  dart.addRtiResources(html$.UnderlyingSourceBase, ["html|UnderlyingSourceBase"]);
  dart.setMethodSignature(html$.UnderlyingSourceBase, () => dart.global.Object.setPrototypeOf({
    [S$.$cancel]: T$.ObjectNToFuture(),
    [S$3.$notifyLockAcquired]: T$.VoidTovoid(),
    [S$3.$notifyLockReleased]: T$.VoidTovoid(),
    [S$3.$pull]: T$.VoidToFuture(),
    [S$.$start]: T$6.ObjectToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.UnderlyingSourceBase))));
  dart.setStaticMethodSignature(html$.UnderlyingSourceBase, () => ['__']);
  dart.setLibraryUri(html$.UnderlyingSourceBase, I[167]);
  dart.registerExtension("UnderlyingSourceBase", html$.UnderlyingSourceBase);
  html$.UnknownElement = class UnknownElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$.UnknownElement.__();
    }
    static ['_#created#tearOff']() {
      return new html$.UnknownElement.created();
    }
  };
  (html$.UnknownElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.UnknownElement).created.call(this);
    ;
  }).prototype = html$.UnknownElement.prototype;
  dart.addRtiResources(html$.UnknownElement, ["html|UnknownElement"]);
  dart.setStaticMethodSignature(html$.UnknownElement, () => ['__']);
  dart.setLibraryUri(html$.UnknownElement, I[167]);
  dart.registerExtension("HTMLUnknownElement", html$.UnknownElement);
  html$.Url = class Url extends _interceptors.JavaScriptObject {
    static createObjectUrl(blob_OR_source_OR_stream) {
      return (self.URL || self.webkitURL).createObjectURL(blob_OR_source_OR_stream);
    }
    static createObjectUrlFromSource(source) {
      if (source == null) dart.nullFailed(I[166], 30942, 55, "source");
      return (self.URL || self.webkitURL).createObjectURL(source);
    }
    static createObjectUrlFromStream(stream) {
      if (stream == null) dart.nullFailed(I[166], 30945, 55, "stream");
      return (self.URL || self.webkitURL).createObjectURL(stream);
    }
    static createObjectUrlFromBlob(blob) {
      if (blob == null) dart.nullFailed(I[166], 30948, 46, "blob");
      return (self.URL || self.webkitURL).createObjectURL(blob);
    }
    static revokeObjectUrl(url) {
      if (url == null) dart.nullFailed(I[166], 30951, 38, "url");
      return (self.URL || self.webkitURL).revokeObjectURL(url);
    }
    [$toString]() {
      return String(this);
    }
    static ['_#_#tearOff']() {
      return html$.Url.__();
    }
    get [S$.$hash]() {
      return this.hash;
    }
    set [S$.$hash](value) {
      this.hash = value;
    }
    get [S$.$host]() {
      return this.host;
    }
    set [S$.$host](value) {
      this.host = value;
    }
    get [S$.$hostname]() {
      return this.hostname;
    }
    set [S$.$hostname](value) {
      this.hostname = value;
    }
    get [S$.$href]() {
      return this.href;
    }
    set [S$.$href](value) {
      this.href = value;
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$.$password]() {
      return this.password;
    }
    set [S$.$password](value) {
      this.password = value;
    }
    get [S$.$pathname]() {
      return this.pathname;
    }
    set [S$.$pathname](value) {
      this.pathname = value;
    }
    get [S$.$port]() {
      return this.port;
    }
    set [S$.$port](value) {
      this.port = value;
    }
    get [S$.$protocol]() {
      return this.protocol;
    }
    set [S$.$protocol](value) {
      this.protocol = value;
    }
    get [S$.$search]() {
      return this.search;
    }
    set [S$.$search](value) {
      this.search = value;
    }
    get [S$3.$searchParams]() {
      return this.searchParams;
    }
    get [S$.$username]() {
      return this.username;
    }
    set [S$.$username](value) {
      this.username = value;
    }
  };
  dart.addRtiResources(html$.Url, ["html|Url"]);
  dart.setStaticMethodSignature(html$.Url, () => ['createObjectUrl', 'createObjectUrlFromSource', 'createObjectUrlFromStream', 'createObjectUrlFromBlob', 'revokeObjectUrl', '__']);
  dart.setGetterSignature(html$.Url, () => dart.global.Object.setPrototypeOf({
    [S$.$hash]: T$.StringN(),
    [S$.$host]: T$.StringN(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.StringN(),
    [S$.$origin]: T$.StringN(),
    [S$.$password]: T$.StringN(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    [S$.$search]: T$.StringN(),
    [S$3.$searchParams]: T$6.UrlSearchParamsN(),
    [S$.$username]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Url))));
  dart.setSetterSignature(html$.Url, () => dart.global.Object.setPrototypeOf({
    [S$.$hash]: T$.StringN(),
    [S$.$host]: T$.StringN(),
    [S$.$hostname]: T$.StringN(),
    [S$.$href]: T$.StringN(),
    [S$.$password]: T$.StringN(),
    [S$.$pathname]: T$.StringN(),
    [S$.$port]: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    [S$.$search]: T$.StringN(),
    [S$.$username]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Url))));
  dart.setLibraryUri(html$.Url, I[167]);
  dart.registerExtension("URL", html$.Url);
  html$.UrlSearchParams = class UrlSearchParams extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.UrlSearchParams.__();
    }
    static new(init = null) {
      if (init != null) {
        return html$.UrlSearchParams._create_1(init);
      }
      return html$.UrlSearchParams._create_2();
    }
    static ['_#new#tearOff'](init = null) {
      return html$.UrlSearchParams.new(init);
    }
    static _create_1(init) {
      return new URLSearchParams(init);
    }
    static _create_2() {
      return new URLSearchParams();
    }
    [S.$append](...args) {
      return this.append.apply(this, args);
    }
    [S.$delete](...args) {
      return this.delete.apply(this, args);
    }
    [S.$get](...args) {
      return this.get.apply(this, args);
    }
    [S.$getAll](...args) {
      return this.getAll.apply(this, args);
    }
    [S$.$has](...args) {
      return this.has.apply(this, args);
    }
    [S$.$set](...args) {
      return this.set.apply(this, args);
    }
    [$sort](...args) {
      return this.sort.apply(this, args);
    }
  };
  dart.addRtiResources(html$.UrlSearchParams, ["html|UrlSearchParams"]);
  dart.setMethodSignature(html$.UrlSearchParams, () => dart.global.Object.setPrototypeOf({
    [S.$append]: T$2.StringAndStringTovoid(),
    [S.$delete]: T$.StringTovoid(),
    [S.$get]: T$.StringToStringN(),
    [S.$getAll]: T$2.StringToListOfString(),
    [S$.$has]: T$.StringTobool(),
    [S$.$set]: T$2.StringAndStringTovoid(),
    [$sort]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.UrlSearchParams))));
  dart.setStaticMethodSignature(html$.UrlSearchParams, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$.UrlSearchParams, I[167]);
  dart.registerExtension("URLSearchParams", html$.UrlSearchParams);
  html$.UrlUtilsReadOnly = class UrlUtilsReadOnly extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.UrlUtilsReadOnly.__();
    }
    get hash() {
      return this.hash;
    }
    get host() {
      return this.host;
    }
    get hostname() {
      return this.hostname;
    }
    get href() {
      return this.href;
    }
    get origin() {
      return this.origin;
    }
    get pathname() {
      return this.pathname;
    }
    get port() {
      return this.port;
    }
    get protocol() {
      return this.protocol;
    }
    get search() {
      return this.search;
    }
  };
  dart.addRtiResources(html$.UrlUtilsReadOnly, ["html|UrlUtilsReadOnly"]);
  dart.setStaticMethodSignature(html$.UrlUtilsReadOnly, () => ['__']);
  dart.setGetterSignature(html$.UrlUtilsReadOnly, () => dart.global.Object.setPrototypeOf({
    hash: T$.StringN(),
    [S$.$hash]: T$.StringN(),
    host: T$.StringN(),
    [S$.$host]: T$.StringN(),
    hostname: T$.StringN(),
    [S$.$hostname]: T$.StringN(),
    href: T$.StringN(),
    [S$.$href]: T$.StringN(),
    origin: T$.StringN(),
    [S$.$origin]: T$.StringN(),
    pathname: T$.StringN(),
    [S$.$pathname]: T$.StringN(),
    port: T$.StringN(),
    [S$.$port]: T$.StringN(),
    protocol: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    search: T$.StringN(),
    [S$.$search]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.UrlUtilsReadOnly))));
  dart.setLibraryUri(html$.UrlUtilsReadOnly, I[167]);
  dart.defineExtensionAccessors(html$.UrlUtilsReadOnly, [
    'hash',
    'host',
    'hostname',
    'href',
    'origin',
    'pathname',
    'port',
    'protocol',
    'search'
  ]);
  html$.VR = class VR extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.VR.__();
    }
    [S$3.$getDevices]() {
      return js_util.promiseToFuture(T$.dynamic(), this.getDevices());
    }
  };
  dart.addRtiResources(html$.VR, ["html|VR"]);
  dart.setMethodSignature(html$.VR, () => dart.global.Object.setPrototypeOf({[S$3.$getDevices]: T$.VoidToFuture()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.VR))));
  dart.setStaticMethodSignature(html$.VR, () => ['__']);
  dart.setLibraryUri(html$.VR, I[167]);
  dart.registerExtension("VR", html$.VR);
  html$.VRCoordinateSystem = class VRCoordinateSystem extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VRCoordinateSystem.__();
    }
    [S$3.$getTransformTo](...args) {
      return this.getTransformTo.apply(this, args);
    }
  };
  dart.addRtiResources(html$.VRCoordinateSystem, ["html|VRCoordinateSystem"]);
  dart.setMethodSignature(html$.VRCoordinateSystem, () => dart.global.Object.setPrototypeOf({[S$3.$getTransformTo]: T$6.VRCoordinateSystemToFloat32ListN()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.VRCoordinateSystem))));
  dart.setStaticMethodSignature(html$.VRCoordinateSystem, () => ['__']);
  dart.setLibraryUri(html$.VRCoordinateSystem, I[167]);
  dart.registerExtension("VRCoordinateSystem", html$.VRCoordinateSystem);
  html$.VRDevice = class VRDevice extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.VRDevice.__();
    }
    get [S$3.$deviceName]() {
      return this.deviceName;
    }
    get [S$3.$isExternal]() {
      return this.isExternal;
    }
    [S$3.$requestSession](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.requestSession(options_dict));
    }
    [S$3.$supportsSession](options = null) {
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.supportsSession(options_dict));
    }
  };
  dart.addRtiResources(html$.VRDevice, ["html|VRDevice"]);
  dart.setMethodSignature(html$.VRDevice, () => dart.global.Object.setPrototypeOf({
    [S$3.$requestSession]: T$4.MapNToFuture(),
    [S$3.$supportsSession]: T$4.MapNToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.VRDevice))));
  dart.setStaticMethodSignature(html$.VRDevice, () => ['__']);
  dart.setGetterSignature(html$.VRDevice, () => dart.global.Object.setPrototypeOf({
    [S$3.$deviceName]: T$.StringN(),
    [S$3.$isExternal]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRDevice))));
  dart.setLibraryUri(html$.VRDevice, I[167]);
  dart.registerExtension("VRDevice", html$.VRDevice);
  html$.VRDeviceEvent = class VRDeviceEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.VRDeviceEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 31137, 32, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 31137, 42, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.VRDeviceEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 31137, 32, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 31137, 42, "eventInitDict");
      return html$.VRDeviceEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new VRDeviceEvent(type, eventInitDict);
    }
    get [S$3.$device]() {
      return this.device;
    }
  };
  dart.addRtiResources(html$.VRDeviceEvent, ["html|VRDeviceEvent"]);
  dart.setStaticMethodSignature(html$.VRDeviceEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.VRDeviceEvent, () => dart.global.Object.setPrototypeOf({[S$3.$device]: T$6.VRDeviceN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRDeviceEvent))));
  dart.setLibraryUri(html$.VRDeviceEvent, I[167]);
  dart.registerExtension("VRDeviceEvent", html$.VRDeviceEvent);
  html$.VRDisplay = class VRDisplay extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.VRDisplay.__();
    }
    get [S$3.$capabilities]() {
      return this.capabilities;
    }
    get [S$3.$depthFar]() {
      return this.depthFar;
    }
    set [S$3.$depthFar](value) {
      this.depthFar = value;
    }
    get [S$3.$depthNear]() {
      return this.depthNear;
    }
    set [S$3.$depthNear](value) {
      this.depthNear = value;
    }
    get [S$1.$displayId]() {
      return this.displayId;
    }
    get [S$3.$displayName]() {
      return this.displayName;
    }
    get [S$3.$isPresenting]() {
      return this.isPresenting;
    }
    get [S$3.$stageParameters]() {
      return this.stageParameters;
    }
    [S$3.$cancelAnimationFrame](...args) {
      return this.cancelAnimationFrame.apply(this, args);
    }
    [S$3.$exitPresent]() {
      return js_util.promiseToFuture(T$.dynamic(), this.exitPresent());
    }
    [S$3.$getEyeParameters](...args) {
      return this.getEyeParameters.apply(this, args);
    }
    [S$3.$getFrameData](...args) {
      return this.getFrameData.apply(this, args);
    }
    [S$3.$getLayers](...args) {
      return this.getLayers.apply(this, args);
    }
    [S$3.$requestAnimationFrame](...args) {
      return this.requestAnimationFrame.apply(this, args);
    }
    [S$3.$requestPresent](layers) {
      if (layers == null) dart.nullFailed(I[166], 31187, 35, "layers");
      return js_util.promiseToFuture(T$.dynamic(), this.requestPresent(layers));
    }
    [S$3.$submitFrame](...args) {
      return this.submitFrame.apply(this, args);
    }
  };
  dart.addRtiResources(html$.VRDisplay, ["html|VRDisplay"]);
  dart.setMethodSignature(html$.VRDisplay, () => dart.global.Object.setPrototypeOf({
    [S$3.$cancelAnimationFrame]: T$.intTovoid(),
    [S$3.$exitPresent]: T$.VoidToFuture(),
    [S$3.$getEyeParameters]: T$6.StringToVREyeParameters(),
    [S$3.$getFrameData]: T$6.VRFrameDataTobool(),
    [S$3.$getLayers]: T.VoidToListOfMap(),
    [S$3.$requestAnimationFrame]: T$6.FnToint$1(),
    [S$3.$requestPresent]: T$6.ListOfMapToFuture(),
    [S$3.$submitFrame]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.VRDisplay))));
  dart.setStaticMethodSignature(html$.VRDisplay, () => ['__']);
  dart.setGetterSignature(html$.VRDisplay, () => dart.global.Object.setPrototypeOf({
    [S$3.$capabilities]: T$6.VRDisplayCapabilitiesN(),
    [S$3.$depthFar]: T$3.numN(),
    [S$3.$depthNear]: T$3.numN(),
    [S$1.$displayId]: T$.intN(),
    [S$3.$displayName]: T$.StringN(),
    [S$3.$isPresenting]: T$.boolN(),
    [S$3.$stageParameters]: T$6.VRStageParametersN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRDisplay))));
  dart.setSetterSignature(html$.VRDisplay, () => dart.global.Object.setPrototypeOf({
    [S$3.$depthFar]: T$3.numN(),
    [S$3.$depthNear]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.VRDisplay))));
  dart.setLibraryUri(html$.VRDisplay, I[167]);
  dart.registerExtension("VRDisplay", html$.VRDisplay);
  html$.VRDisplayCapabilities = class VRDisplayCapabilities extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VRDisplayCapabilities.__();
    }
    get [S$3.$canPresent]() {
      return this.canPresent;
    }
    get [S$3.$hasExternalDisplay]() {
      return this.hasExternalDisplay;
    }
    get [S$1.$hasPosition]() {
      return this.hasPosition;
    }
    get [S$3.$maxLayers]() {
      return this.maxLayers;
    }
  };
  dart.addRtiResources(html$.VRDisplayCapabilities, ["html|VRDisplayCapabilities"]);
  dart.setStaticMethodSignature(html$.VRDisplayCapabilities, () => ['__']);
  dart.setGetterSignature(html$.VRDisplayCapabilities, () => dart.global.Object.setPrototypeOf({
    [S$3.$canPresent]: T$.boolN(),
    [S$3.$hasExternalDisplay]: T$.boolN(),
    [S$1.$hasPosition]: T$.boolN(),
    [S$3.$maxLayers]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRDisplayCapabilities))));
  dart.setLibraryUri(html$.VRDisplayCapabilities, I[167]);
  dart.registerExtension("VRDisplayCapabilities", html$.VRDisplayCapabilities);
  html$.VRDisplayEvent = class VRDisplayEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.VRDisplayEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 31222, 33, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.VRDisplayEvent._create_1(type, eventInitDict_1);
      }
      return html$.VRDisplayEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 31222, 33, "type");
      return html$.VRDisplayEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new VRDisplayEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new VRDisplayEvent(type);
    }
    get [S$0.$display]() {
      return this.display;
    }
    get [S$.$reason]() {
      return this.reason;
    }
  };
  dart.addRtiResources(html$.VRDisplayEvent, ["html|VRDisplayEvent"]);
  dart.setStaticMethodSignature(html$.VRDisplayEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.VRDisplayEvent, () => dart.global.Object.setPrototypeOf({
    [S$0.$display]: T$6.VRDisplayN(),
    [S$.$reason]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRDisplayEvent))));
  dart.setLibraryUri(html$.VRDisplayEvent, I[167]);
  dart.registerExtension("VRDisplayEvent", html$.VRDisplayEvent);
  html$.VREyeParameters = class VREyeParameters extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VREyeParameters.__();
    }
    get [S.$offset]() {
      return this.offset;
    }
    get [S$3.$renderHeight]() {
      return this.renderHeight;
    }
    get [S$3.$renderWidth]() {
      return this.renderWidth;
    }
  };
  dart.addRtiResources(html$.VREyeParameters, ["html|VREyeParameters"]);
  dart.setStaticMethodSignature(html$.VREyeParameters, () => ['__']);
  dart.setGetterSignature(html$.VREyeParameters, () => dart.global.Object.setPrototypeOf({
    [S.$offset]: T$5.Float32ListN(),
    [S$3.$renderHeight]: T$.intN(),
    [S$3.$renderWidth]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VREyeParameters))));
  dart.setLibraryUri(html$.VREyeParameters, I[167]);
  dart.registerExtension("VREyeParameters", html$.VREyeParameters);
  html$.VRFrameData = class VRFrameData$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VRFrameData.__();
    }
    static new() {
      return html$.VRFrameData._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.VRFrameData.new();
    }
    static _create_1() {
      return new VRFrameData();
    }
    get [S$3.$leftProjectionMatrix]() {
      return this.leftProjectionMatrix;
    }
    get [S$3.$leftViewMatrix]() {
      return this.leftViewMatrix;
    }
    get [S$1.$pose]() {
      return this.pose;
    }
    get [S$3.$rightProjectionMatrix]() {
      return this.rightProjectionMatrix;
    }
    get [S$3.$rightViewMatrix]() {
      return this.rightViewMatrix;
    }
  };
  dart.addRtiResources(html$.VRFrameData, ["html|VRFrameData"]);
  dart.setStaticMethodSignature(html$.VRFrameData, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.VRFrameData, () => dart.global.Object.setPrototypeOf({
    [S$3.$leftProjectionMatrix]: T$5.Float32ListN(),
    [S$3.$leftViewMatrix]: T$5.Float32ListN(),
    [S$1.$pose]: T$6.VRPoseN(),
    [S$3.$rightProjectionMatrix]: T$5.Float32ListN(),
    [S$3.$rightViewMatrix]: T$5.Float32ListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRFrameData))));
  dart.setLibraryUri(html$.VRFrameData, I[167]);
  dart.registerExtension("VRFrameData", html$.VRFrameData);
  html$.VRFrameOfReference = class VRFrameOfReference extends html$.VRCoordinateSystem {
    static ['_#_#tearOff']() {
      return html$.VRFrameOfReference.__();
    }
    get [S$3.$bounds]() {
      return this.bounds;
    }
    get [S$3.$emulatedHeight]() {
      return this.emulatedHeight;
    }
  };
  dart.addRtiResources(html$.VRFrameOfReference, ["html|VRFrameOfReference"]);
  dart.setStaticMethodSignature(html$.VRFrameOfReference, () => ['__']);
  dart.setGetterSignature(html$.VRFrameOfReference, () => dart.global.Object.setPrototypeOf({
    [S$3.$bounds]: T$6.VRStageBoundsN(),
    [S$3.$emulatedHeight]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRFrameOfReference))));
  dart.setLibraryUri(html$.VRFrameOfReference, I[167]);
  dart.registerExtension("VRFrameOfReference", html$.VRFrameOfReference);
  html$.VRPose = class VRPose extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VRPose.__();
    }
    get [S$1.$angularAcceleration]() {
      return this.angularAcceleration;
    }
    get [S$1.$angularVelocity]() {
      return this.angularVelocity;
    }
    get [S$1.$linearAcceleration]() {
      return this.linearAcceleration;
    }
    get [S$1.$linearVelocity]() {
      return this.linearVelocity;
    }
    get [S$.$orientation]() {
      return this.orientation;
    }
    get [S$0.$position]() {
      return this.position;
    }
  };
  dart.addRtiResources(html$.VRPose, ["html|VRPose"]);
  dart.setStaticMethodSignature(html$.VRPose, () => ['__']);
  dart.setGetterSignature(html$.VRPose, () => dart.global.Object.setPrototypeOf({
    [S$1.$angularAcceleration]: T$5.Float32ListN(),
    [S$1.$angularVelocity]: T$5.Float32ListN(),
    [S$1.$linearAcceleration]: T$5.Float32ListN(),
    [S$1.$linearVelocity]: T$5.Float32ListN(),
    [S$.$orientation]: T$5.Float32ListN(),
    [S$0.$position]: T$5.Float32ListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRPose))));
  dart.setLibraryUri(html$.VRPose, I[167]);
  dart.registerExtension("VRPose", html$.VRPose);
  html$.VRSession = class VRSession extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.VRSession.__();
    }
    get [S$3.$depthFar]() {
      return this.depthFar;
    }
    set [S$3.$depthFar](value) {
      this.depthFar = value;
    }
    get [S$3.$depthNear]() {
      return this.depthNear;
    }
    set [S$3.$depthNear](value) {
      this.depthNear = value;
    }
    get [S$3.$device]() {
      return this.device;
    }
    get [S$3.$exclusive]() {
      return this.exclusive;
    }
    [S$3.$end]() {
      return js_util.promiseToFuture(T$.dynamic(), this.end());
    }
    [S$3.$requestFrameOfReference](type, options = null) {
      if (type == null) dart.nullFailed(I[166], 31350, 41, "type");
      let options_dict = null;
      if (options != null) {
        options_dict = html_common.convertDartToNative_Dictionary(options);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.requestFrameOfReference(type, options_dict));
    }
    get [S.$onBlur]() {
      return html$.VRSession.blurEvent.forTarget(this);
    }
    get [S.$onFocus]() {
      return html$.VRSession.focusEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.VRSession, ["html|VRSession"]);
  dart.setMethodSignature(html$.VRSession, () => dart.global.Object.setPrototypeOf({
    [S$3.$end]: T$.VoidToFuture(),
    [S$3.$requestFrameOfReference]: T.StringAndMapNToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.VRSession))));
  dart.setStaticMethodSignature(html$.VRSession, () => ['__']);
  dart.setGetterSignature(html$.VRSession, () => dart.global.Object.setPrototypeOf({
    [S$3.$depthFar]: T$3.numN(),
    [S$3.$depthNear]: T$3.numN(),
    [S$3.$device]: T$6.VRDeviceN(),
    [S$3.$exclusive]: T$.boolN(),
    [S.$onBlur]: T$3.StreamOfEvent(),
    [S.$onFocus]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRSession))));
  dart.setSetterSignature(html$.VRSession, () => dart.global.Object.setPrototypeOf({
    [S$3.$depthFar]: T$3.numN(),
    [S$3.$depthNear]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.VRSession))));
  dart.setLibraryUri(html$.VRSession, I[167]);
  dart.setStaticFieldSignature(html$.VRSession, () => ['blurEvent', 'focusEvent']);
  dart.defineLazy(html$.VRSession, {
    /*html$.VRSession.blurEvent*/get blurEvent() {
      return C[284] || CT.C284;
    },
    /*html$.VRSession.focusEvent*/get focusEvent() {
      return C[303] || CT.C303;
    }
  }, false);
  dart.registerExtension("VRSession", html$.VRSession);
  html$.VRSessionEvent = class VRSessionEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return html$.VRSessionEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 31374, 33, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 31374, 43, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$.VRSessionEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 31374, 33, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 31374, 43, "eventInitDict");
      return html$.VRSessionEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new VRSessionEvent(type, eventInitDict);
    }
    get [S$3.$session]() {
      return this.session;
    }
  };
  dart.addRtiResources(html$.VRSessionEvent, ["html|VRSessionEvent"]);
  dart.setStaticMethodSignature(html$.VRSessionEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.VRSessionEvent, () => dart.global.Object.setPrototypeOf({[S$3.$session]: T$6.VRSessionN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRSessionEvent))));
  dart.setLibraryUri(html$.VRSessionEvent, I[167]);
  dart.registerExtension("VRSessionEvent", html$.VRSessionEvent);
  html$.VRStageBounds = class VRStageBounds extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VRStageBounds.__();
    }
    get [S$3.$geometry]() {
      return this.geometry;
    }
  };
  dart.addRtiResources(html$.VRStageBounds, ["html|VRStageBounds"]);
  dart.setStaticMethodSignature(html$.VRStageBounds, () => ['__']);
  dart.setGetterSignature(html$.VRStageBounds, () => dart.global.Object.setPrototypeOf({[S$3.$geometry]: T$6.ListNOfVRStageBoundsPoint()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRStageBounds))));
  dart.setLibraryUri(html$.VRStageBounds, I[167]);
  dart.registerExtension("VRStageBounds", html$.VRStageBounds);
  html$.VRStageBoundsPoint = class VRStageBoundsPoint extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VRStageBoundsPoint.__();
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$z]() {
      return this.z;
    }
  };
  dart.addRtiResources(html$.VRStageBoundsPoint, ["html|VRStageBoundsPoint"]);
  dart.setStaticMethodSignature(html$.VRStageBoundsPoint, () => ['__']);
  dart.setGetterSignature(html$.VRStageBoundsPoint, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$3.numN(),
    [S$.$z]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRStageBoundsPoint))));
  dart.setLibraryUri(html$.VRStageBoundsPoint, I[167]);
  dart.registerExtension("VRStageBoundsPoint", html$.VRStageBoundsPoint);
  html$.VRStageParameters = class VRStageParameters extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VRStageParameters.__();
    }
    get [S$3.$sittingToStandingTransform]() {
      return this.sittingToStandingTransform;
    }
    get [S$3.$sizeX]() {
      return this.sizeX;
    }
    get [S$3.$sizeZ]() {
      return this.sizeZ;
    }
  };
  dart.addRtiResources(html$.VRStageParameters, ["html|VRStageParameters"]);
  dart.setStaticMethodSignature(html$.VRStageParameters, () => ['__']);
  dart.setGetterSignature(html$.VRStageParameters, () => dart.global.Object.setPrototypeOf({
    [S$3.$sittingToStandingTransform]: T$5.Float32ListN(),
    [S$3.$sizeX]: T$3.numN(),
    [S$3.$sizeZ]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VRStageParameters))));
  dart.setLibraryUri(html$.VRStageParameters, I[167]);
  dart.registerExtension("VRStageParameters", html$.VRStageParameters);
  html$.ValidityState = class ValidityState extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.ValidityState.__();
    }
    get [S$3.$badInput]() {
      return this.badInput;
    }
    get [S$3.$customError]() {
      return this.customError;
    }
    get [S$3.$patternMismatch]() {
      return this.patternMismatch;
    }
    get [S$3.$rangeOverflow]() {
      return this.rangeOverflow;
    }
    get [S$3.$rangeUnderflow]() {
      return this.rangeUnderflow;
    }
    get [S$3.$stepMismatch]() {
      return this.stepMismatch;
    }
    get [S$3.$tooLong]() {
      return this.tooLong;
    }
    get [S$3.$tooShort]() {
      return this.tooShort;
    }
    get [S$3.$typeMismatch]() {
      return this.typeMismatch;
    }
    get [S$3.$valid]() {
      return this.valid;
    }
    get [S$3.$valueMissing]() {
      return this.valueMissing;
    }
  };
  dart.addRtiResources(html$.ValidityState, ["html|ValidityState"]);
  dart.setStaticMethodSignature(html$.ValidityState, () => ['__']);
  dart.setGetterSignature(html$.ValidityState, () => dart.global.Object.setPrototypeOf({
    [S$3.$badInput]: T$.boolN(),
    [S$3.$customError]: T$.boolN(),
    [S$3.$patternMismatch]: T$.boolN(),
    [S$3.$rangeOverflow]: T$.boolN(),
    [S$3.$rangeUnderflow]: T$.boolN(),
    [S$3.$stepMismatch]: T$.boolN(),
    [S$3.$tooLong]: T$.boolN(),
    [S$3.$tooShort]: T$.boolN(),
    [S$3.$typeMismatch]: T$.boolN(),
    [S$3.$valid]: T$.boolN(),
    [S$3.$valueMissing]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.ValidityState))));
  dart.setLibraryUri(html$.ValidityState, I[167]);
  dart.registerExtension("ValidityState", html$.ValidityState);
  html$.VideoElement = class VideoElement extends html$.MediaElement {
    static ['_#_#tearOff']() {
      return html$.VideoElement.__();
    }
    static new() {
      return html$.document.createElement("video");
    }
    static ['_#new#tearOff']() {
      return html$.VideoElement.new();
    }
    static ['_#created#tearOff']() {
      return new html$.VideoElement.created();
    }
    get [$height]() {
      return this.height;
    }
    set [$height](value) {
      this.height = value;
    }
    get [S$3.$poster]() {
      return this.poster;
    }
    set [S$3.$poster](value) {
      this.poster = value;
    }
    get [S$3.$videoHeight]() {
      return this.videoHeight;
    }
    get [S$3.$videoWidth]() {
      return this.videoWidth;
    }
    get [S$3.$decodedFrameCount]() {
      return this.webkitDecodedFrameCount;
    }
    get [S$3.$droppedFrameCount]() {
      return this.webkitDroppedFrameCount;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
    [S$3.$getVideoPlaybackQuality](...args) {
      return this.getVideoPlaybackQuality.apply(this, args);
    }
    [S$3.$enterFullscreen](...args) {
      return this.webkitEnterFullscreen.apply(this, args);
    }
    [S$1.$exitFullscreen](...args) {
      return this.webkitExitFullscreen.apply(this, args);
    }
  };
  (html$.VideoElement.created = function() {
    dart.global.Object.getPrototypeOf(html$.VideoElement).created.call(this);
    ;
  }).prototype = html$.VideoElement.prototype;
  dart.addRtiResources(html$.VideoElement, ["html|VideoElement", "html|CanvasImageSource"]);
  dart.setMethodSignature(html$.VideoElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$getVideoPlaybackQuality]: T$6.VoidToVideoPlaybackQuality(),
    [S$3.$enterFullscreen]: T$.VoidTovoid(),
    [S$1.$exitFullscreen]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.VideoElement))));
  dart.setStaticMethodSignature(html$.VideoElement, () => ['__', 'new']);
  dart.setGetterSignature(html$.VideoElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.int(),
    [S$3.$poster]: T$.String(),
    [S$3.$videoHeight]: T$.int(),
    [S$3.$videoWidth]: T$.int(),
    [S$3.$decodedFrameCount]: T$.intN(),
    [S$3.$droppedFrameCount]: T$.intN(),
    [$width]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VideoElement))));
  dart.setSetterSignature(html$.VideoElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.int(),
    [S$3.$poster]: T$.String(),
    [$width]: T$.int()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.VideoElement))));
  dart.setLibraryUri(html$.VideoElement, I[167]);
  dart.registerExtension("HTMLVideoElement", html$.VideoElement);
  html$.VideoPlaybackQuality = class VideoPlaybackQuality extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VideoPlaybackQuality.__();
    }
    get [S$3.$corruptedVideoFrames]() {
      return this.corruptedVideoFrames;
    }
    get [S$3.$creationTime]() {
      return this.creationTime;
    }
    get [S$3.$droppedVideoFrames]() {
      return this.droppedVideoFrames;
    }
    get [S$3.$totalVideoFrames]() {
      return this.totalVideoFrames;
    }
  };
  dart.addRtiResources(html$.VideoPlaybackQuality, ["html|VideoPlaybackQuality"]);
  dart.setStaticMethodSignature(html$.VideoPlaybackQuality, () => ['__']);
  dart.setGetterSignature(html$.VideoPlaybackQuality, () => dart.global.Object.setPrototypeOf({
    [S$3.$corruptedVideoFrames]: T$.intN(),
    [S$3.$creationTime]: T$3.numN(),
    [S$3.$droppedVideoFrames]: T$.intN(),
    [S$3.$totalVideoFrames]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VideoPlaybackQuality))));
  dart.setLibraryUri(html$.VideoPlaybackQuality, I[167]);
  dart.registerExtension("VideoPlaybackQuality", html$.VideoPlaybackQuality);
  html$.VideoTrack = class VideoTrack extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VideoTrack.__();
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$.$kind]() {
      return this.kind;
    }
    get [S$.$label]() {
      return this.label;
    }
    get [S$2.$language]() {
      return this.language;
    }
    get [S$.$selected]() {
      return this.selected;
    }
    set [S$.$selected](value) {
      this.selected = value;
    }
    get [S$3.$sourceBuffer]() {
      return this.sourceBuffer;
    }
  };
  dart.addRtiResources(html$.VideoTrack, ["html|VideoTrack"]);
  dart.setStaticMethodSignature(html$.VideoTrack, () => ['__']);
  dart.setGetterSignature(html$.VideoTrack, () => dart.global.Object.setPrototypeOf({
    [S.$id]: T$.StringN(),
    [S$.$kind]: T$.StringN(),
    [S$.$label]: T$.StringN(),
    [S$2.$language]: T$.StringN(),
    [S$.$selected]: T$.boolN(),
    [S$3.$sourceBuffer]: T$6.SourceBufferN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VideoTrack))));
  dart.setSetterSignature(html$.VideoTrack, () => dart.global.Object.setPrototypeOf({[S$.$selected]: T$.boolN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.VideoTrack))));
  dart.setLibraryUri(html$.VideoTrack, I[167]);
  dart.registerExtension("VideoTrack", html$.VideoTrack);
  html$.VideoTrackList = class VideoTrackList extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.VideoTrackList.__();
    }
    get [$length]() {
      return this.length;
    }
    get [S$2.$selectedIndex]() {
      return this.selectedIndex;
    }
    [S$.__getter__](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$1.$getTrackById](...args) {
      return this.getTrackById.apply(this, args);
    }
    get [S.$onChange]() {
      return html$.VideoTrackList.changeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.VideoTrackList, ["html|VideoTrackList"]);
  dart.setMethodSignature(html$.VideoTrackList, () => dart.global.Object.setPrototypeOf({
    [S$.__getter__]: T$6.intToVideoTrack(),
    [S$1.$getTrackById]: T$6.StringToVideoTrackN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.VideoTrackList))));
  dart.setStaticMethodSignature(html$.VideoTrackList, () => ['__']);
  dart.setGetterSignature(html$.VideoTrackList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.intN(),
    [S$2.$selectedIndex]: T$.intN(),
    [S.$onChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VideoTrackList))));
  dart.setLibraryUri(html$.VideoTrackList, I[167]);
  dart.setStaticFieldSignature(html$.VideoTrackList, () => ['changeEvent']);
  dart.defineLazy(html$.VideoTrackList, {
    /*html$.VideoTrackList.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    }
  }, false);
  dart.registerExtension("VideoTrackList", html$.VideoTrackList);
  html$.VisualViewport = class VisualViewport extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.VisualViewport.__();
    }
    get [$height]() {
      return this.height;
    }
    get [S.$offsetLeft]() {
      return this.offsetLeft;
    }
    get [S.$offsetTop]() {
      return this.offsetTop;
    }
    get [S$3.$pageLeft]() {
      return this.pageLeft;
    }
    get [S$3.$pageTop]() {
      return this.pageTop;
    }
    get [S$.$scale]() {
      return this.scale;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$onResize]() {
      return html$.VisualViewport.resizeEvent.forTarget(this);
    }
    get [S$.$onScroll]() {
      return html$.VisualViewport.scrollEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.VisualViewport, ["html|VisualViewport"]);
  dart.setStaticMethodSignature(html$.VisualViewport, () => ['__']);
  dart.setGetterSignature(html$.VisualViewport, () => dart.global.Object.setPrototypeOf({
    [$height]: T$3.numN(),
    [S.$offsetLeft]: T$3.numN(),
    [S.$offsetTop]: T$3.numN(),
    [S$3.$pageLeft]: T$3.numN(),
    [S$3.$pageTop]: T$3.numN(),
    [S$.$scale]: T$3.numN(),
    [$width]: T$3.numN(),
    [S$.$onResize]: T$3.StreamOfEvent(),
    [S$.$onScroll]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VisualViewport))));
  dart.setLibraryUri(html$.VisualViewport, I[167]);
  dart.setStaticFieldSignature(html$.VisualViewport, () => ['resizeEvent', 'scrollEvent']);
  dart.defineLazy(html$.VisualViewport, {
    /*html$.VisualViewport.resizeEvent*/get resizeEvent() {
      return C[325] || CT.C325;
    },
    /*html$.VisualViewport.scrollEvent*/get scrollEvent() {
      return C[326] || CT.C326;
    }
  }, false);
  dart.registerExtension("VisualViewport", html$.VisualViewport);
  html$.VttCue = class VttCue extends html$.TextTrackCue {
    static ['_#_#tearOff']() {
      return html$.VttCue.__();
    }
    static new(startTime, endTime, text) {
      if (startTime == null) dart.nullFailed(I[166], 31643, 22, "startTime");
      if (endTime == null) dart.nullFailed(I[166], 31643, 37, "endTime");
      if (text == null) dart.nullFailed(I[166], 31643, 53, "text");
      return html$.VttCue._create_1(startTime, endTime, text);
    }
    static ['_#new#tearOff'](startTime, endTime, text) {
      if (startTime == null) dart.nullFailed(I[166], 31643, 22, "startTime");
      if (endTime == null) dart.nullFailed(I[166], 31643, 37, "endTime");
      if (text == null) dart.nullFailed(I[166], 31643, 53, "text");
      return html$.VttCue.new(startTime, endTime, text);
    }
    static _create_1(startTime, endTime, text) {
      return new VTTCue(startTime, endTime, text);
    }
    get [S$3.$align]() {
      return this.align;
    }
    set [S$3.$align](value) {
      this.align = value;
    }
    get [S$3.$line]() {
      return this.line;
    }
    set [S$3.$line](value) {
      this.line = value;
    }
    get [S$0.$position]() {
      return this.position;
    }
    set [S$0.$position](value) {
      this.position = value;
    }
    get [S$1.$region]() {
      return this.region;
    }
    set [S$1.$region](value) {
      this.region = value;
    }
    get [S$.$size]() {
      return this.size;
    }
    set [S$.$size](value) {
      this.size = value;
    }
    get [S$3.$snapToLines]() {
      return this.snapToLines;
    }
    set [S$3.$snapToLines](value) {
      this.snapToLines = value;
    }
    get [S.$text]() {
      return this.text;
    }
    set [S.$text](value) {
      this.text = value;
    }
    get [S$3.$vertical]() {
      return this.vertical;
    }
    set [S$3.$vertical](value) {
      this.vertical = value;
    }
    [S$3.$getCueAsHtml](...args) {
      return this.getCueAsHTML.apply(this, args);
    }
  };
  dart.addRtiResources(html$.VttCue, ["html|VttCue"]);
  dart.setMethodSignature(html$.VttCue, () => dart.global.Object.setPrototypeOf({[S$3.$getCueAsHtml]: T$5.VoidToDocumentFragment()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.VttCue))));
  dart.setStaticMethodSignature(html$.VttCue, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.VttCue, () => dart.global.Object.setPrototypeOf({
    [S$3.$align]: T$.StringN(),
    [S$3.$line]: T$.ObjectN(),
    [S$0.$position]: T$.ObjectN(),
    [S$1.$region]: T$6.VttRegionN(),
    [S$.$size]: T$3.numN(),
    [S$3.$snapToLines]: T$.boolN(),
    [S.$text]: T$.StringN(),
    [S$3.$vertical]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VttCue))));
  dart.setSetterSignature(html$.VttCue, () => dart.global.Object.setPrototypeOf({
    [S$3.$align]: T$.StringN(),
    [S$3.$line]: T$.ObjectN(),
    [S$0.$position]: T$.ObjectN(),
    [S$1.$region]: T$6.VttRegionN(),
    [S$.$size]: T$3.numN(),
    [S$3.$snapToLines]: T$.boolN(),
    [S.$text]: T$.StringN(),
    [S$3.$vertical]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.VttCue))));
  dart.setLibraryUri(html$.VttCue, I[167]);
  dart.registerExtension("VTTCue", html$.VttCue);
  html$.VttRegion = class VttRegion extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.VttRegion.__();
    }
    static new() {
      return html$.VttRegion._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.VttRegion.new();
    }
    static _create_1() {
      return new VTTRegion();
    }
    get [S.$id]() {
      return this.id;
    }
    set [S.$id](value) {
      this.id = value;
    }
    get [S$3.$lines]() {
      return this.lines;
    }
    set [S$3.$lines](value) {
      this.lines = value;
    }
    get [S$3.$regionAnchorX]() {
      return this.regionAnchorX;
    }
    set [S$3.$regionAnchorX](value) {
      this.regionAnchorX = value;
    }
    get [S$3.$regionAnchorY]() {
      return this.regionAnchorY;
    }
    set [S$3.$regionAnchorY](value) {
      this.regionAnchorY = value;
    }
    get [S.$scroll]() {
      return this.scroll;
    }
    set [S.$scroll](value) {
      this.scroll = value;
    }
    get [S$3.$viewportAnchorX]() {
      return this.viewportAnchorX;
    }
    set [S$3.$viewportAnchorX](value) {
      this.viewportAnchorX = value;
    }
    get [S$3.$viewportAnchorY]() {
      return this.viewportAnchorY;
    }
    set [S$3.$viewportAnchorY](value) {
      this.viewportAnchorY = value;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
  };
  dart.addRtiResources(html$.VttRegion, ["html|VttRegion"]);
  dart.setStaticMethodSignature(html$.VttRegion, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.VttRegion, () => dart.global.Object.setPrototypeOf({
    [S.$id]: T$.StringN(),
    [S$3.$lines]: T$.intN(),
    [S$3.$regionAnchorX]: T$3.numN(),
    [S$3.$regionAnchorY]: T$3.numN(),
    [S.$scroll]: T$.StringN(),
    [S$3.$viewportAnchorX]: T$3.numN(),
    [S$3.$viewportAnchorY]: T$3.numN(),
    [$width]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.VttRegion))));
  dart.setSetterSignature(html$.VttRegion, () => dart.global.Object.setPrototypeOf({
    [S.$id]: T$.StringN(),
    [S$3.$lines]: T$.intN(),
    [S$3.$regionAnchorX]: T$3.numN(),
    [S$3.$regionAnchorY]: T$3.numN(),
    [S.$scroll]: T$.StringN(),
    [S$3.$viewportAnchorX]: T$3.numN(),
    [S$3.$viewportAnchorY]: T$3.numN(),
    [$width]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.VttRegion))));
  dart.setLibraryUri(html$.VttRegion, I[167]);
  dart.registerExtension("VTTRegion", html$.VttRegion);
  html$.WebSocket = class WebSocket$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.WebSocket.__();
    }
    static new(url, protocols = null) {
      if (url == null) dart.nullFailed(I[166], 31822, 28, "url");
      if (protocols != null) {
        return html$.WebSocket._create_1(url, protocols);
      }
      return html$.WebSocket._create_2(url);
    }
    static ['_#new#tearOff'](url, protocols = null) {
      if (url == null) dart.nullFailed(I[166], 31822, 28, "url");
      return html$.WebSocket.new(url, protocols);
    }
    static _create_1(url, protocols) {
      return new WebSocket(url, protocols);
    }
    static _create_2(url) {
      return new WebSocket(url);
    }
    static get supported() {
      return typeof window.WebSocket != "undefined";
    }
    get [S$2.$binaryType]() {
      return this.binaryType;
    }
    set [S$2.$binaryType](value) {
      this.binaryType = value;
    }
    get [S$2.$bufferedAmount]() {
      return this.bufferedAmount;
    }
    get [S$3.$extensions]() {
      return this.extensions;
    }
    get [S$.$protocol]() {
      return this.protocol;
    }
    get [S.$readyState]() {
      return this.readyState;
    }
    get [S$.$url]() {
      return this.url;
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$1.$send](...args) {
      return this.send.apply(this, args);
    }
    [S$2.$sendBlob](...args) {
      return this.send.apply(this, args);
    }
    [S$2.$sendByteBuffer](...args) {
      return this.send.apply(this, args);
    }
    [S$2.$sendString](...args) {
      return this.send.apply(this, args);
    }
    [S$2.$sendTypedData](...args) {
      return this.send.apply(this, args);
    }
    get [S.$onClose]() {
      return html$.WebSocket.closeEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.WebSocket.errorEvent.forTarget(this);
    }
    get [S$.$onMessage]() {
      return html$.WebSocket.messageEvent.forTarget(this);
    }
    get [S$1.$onOpen]() {
      return html$.WebSocket.openEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.WebSocket, ["html|WebSocket"]);
  dart.setMethodSignature(html$.WebSocket, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$6.intNAndStringNTovoid(),
    [S$1.$send]: T$.dynamicTovoid(),
    [S$2.$sendBlob]: T$5.BlobTovoid(),
    [S$2.$sendByteBuffer]: T.ByteBufferTovoid(),
    [S$2.$sendString]: T$.StringTovoid(),
    [S$2.$sendTypedData]: T.TypedDataTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.WebSocket))));
  dart.setStaticMethodSignature(html$.WebSocket, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.WebSocket, () => dart.global.Object.setPrototypeOf({
    [S$2.$binaryType]: T$.StringN(),
    [S$2.$bufferedAmount]: T$.intN(),
    [S$3.$extensions]: T$.StringN(),
    [S$.$protocol]: T$.StringN(),
    [S.$readyState]: T$.int(),
    [S$.$url]: T$.StringN(),
    [S.$onClose]: T$6.StreamOfCloseEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent(),
    [S$1.$onOpen]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.WebSocket))));
  dart.setSetterSignature(html$.WebSocket, () => dart.global.Object.setPrototypeOf({[S$2.$binaryType]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$.WebSocket))));
  dart.setStaticGetterSignature(html$.WebSocket, () => ['supported']);
  dart.setLibraryUri(html$.WebSocket, I[167]);
  dart.setStaticFieldSignature(html$.WebSocket, () => ['closeEvent', 'errorEvent', 'messageEvent', 'openEvent', 'CLOSED', 'CLOSING', 'CONNECTING', 'OPEN']);
  dart.defineLazy(html$.WebSocket, {
    /*html$.WebSocket.closeEvent*/get closeEvent() {
      return C[439] || CT.C439;
    },
    /*html$.WebSocket.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.WebSocket.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    },
    /*html$.WebSocket.openEvent*/get openEvent() {
      return C[381] || CT.C381;
    },
    /*html$.WebSocket.CLOSED*/get CLOSED() {
      return 3;
    },
    /*html$.WebSocket.CLOSING*/get CLOSING() {
      return 2;
    },
    /*html$.WebSocket.CONNECTING*/get CONNECTING() {
      return 0;
    },
    /*html$.WebSocket.OPEN*/get OPEN() {
      return 1;
    }
  }, false);
  dart.registerExtension("WebSocket", html$.WebSocket);
  html$.WheelEvent = class WheelEvent$ extends html$.MouseEvent {
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 31927, 29, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let deltaX = opts && 'deltaX' in opts ? opts.deltaX : 0;
      if (deltaX == null) dart.nullFailed(I[166], 31929, 11, "deltaX");
      let deltaY = opts && 'deltaY' in opts ? opts.deltaY : 0;
      if (deltaY == null) dart.nullFailed(I[166], 31930, 11, "deltaY");
      let deltaZ = opts && 'deltaZ' in opts ? opts.deltaZ : 0;
      if (deltaZ == null) dart.nullFailed(I[166], 31931, 11, "deltaZ");
      let deltaMode = opts && 'deltaMode' in opts ? opts.deltaMode : 0;
      if (deltaMode == null) dart.nullFailed(I[166], 31932, 11, "deltaMode");
      let detail = opts && 'detail' in opts ? opts.detail : 0;
      if (detail == null) dart.nullFailed(I[166], 31933, 11, "detail");
      let screenX = opts && 'screenX' in opts ? opts.screenX : 0;
      if (screenX == null) dart.nullFailed(I[166], 31934, 11, "screenX");
      let screenY = opts && 'screenY' in opts ? opts.screenY : 0;
      if (screenY == null) dart.nullFailed(I[166], 31935, 11, "screenY");
      let clientX = opts && 'clientX' in opts ? opts.clientX : 0;
      if (clientX == null) dart.nullFailed(I[166], 31936, 11, "clientX");
      let clientY = opts && 'clientY' in opts ? opts.clientY : 0;
      if (clientY == null) dart.nullFailed(I[166], 31937, 11, "clientY");
      let button = opts && 'button' in opts ? opts.button : 0;
      if (button == null) dart.nullFailed(I[166], 31938, 11, "button");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 31939, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 31940, 12, "cancelable");
      let ctrlKey = opts && 'ctrlKey' in opts ? opts.ctrlKey : false;
      if (ctrlKey == null) dart.nullFailed(I[166], 31941, 12, "ctrlKey");
      let altKey = opts && 'altKey' in opts ? opts.altKey : false;
      if (altKey == null) dart.nullFailed(I[166], 31942, 12, "altKey");
      let shiftKey = opts && 'shiftKey' in opts ? opts.shiftKey : false;
      if (shiftKey == null) dart.nullFailed(I[166], 31943, 12, "shiftKey");
      let metaKey = opts && 'metaKey' in opts ? opts.metaKey : false;
      if (metaKey == null) dart.nullFailed(I[166], 31944, 12, "metaKey");
      let relatedTarget = opts && 'relatedTarget' in opts ? opts.relatedTarget : null;
      let options = new (G.IdentityMapOfString$ObjectN()).from(["view", view, "deltaMode", deltaMode, "deltaX", deltaX, "deltaY", deltaY, "deltaZ", deltaZ, "detail", detail, "screenX", screenX, "screenY", screenY, "clientX", clientX, "clientY", clientY, "button", button, "bubbles", canBubble, "cancelable", cancelable, "ctrlKey", ctrlKey, "altKey", altKey, "shiftKey", shiftKey, "metaKey", metaKey, "relatedTarget", relatedTarget]);
      if (view == null) {
        view = html$.window;
      }
      return new WheelEvent(type, html_common.convertDartToNative_Dictionary(options));
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 31927, 29, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let deltaX = opts && 'deltaX' in opts ? opts.deltaX : 0;
      if (deltaX == null) dart.nullFailed(I[166], 31929, 11, "deltaX");
      let deltaY = opts && 'deltaY' in opts ? opts.deltaY : 0;
      if (deltaY == null) dart.nullFailed(I[166], 31930, 11, "deltaY");
      let deltaZ = opts && 'deltaZ' in opts ? opts.deltaZ : 0;
      if (deltaZ == null) dart.nullFailed(I[166], 31931, 11, "deltaZ");
      let deltaMode = opts && 'deltaMode' in opts ? opts.deltaMode : 0;
      if (deltaMode == null) dart.nullFailed(I[166], 31932, 11, "deltaMode");
      let detail = opts && 'detail' in opts ? opts.detail : 0;
      if (detail == null) dart.nullFailed(I[166], 31933, 11, "detail");
      let screenX = opts && 'screenX' in opts ? opts.screenX : 0;
      if (screenX == null) dart.nullFailed(I[166], 31934, 11, "screenX");
      let screenY = opts && 'screenY' in opts ? opts.screenY : 0;
      if (screenY == null) dart.nullFailed(I[166], 31935, 11, "screenY");
      let clientX = opts && 'clientX' in opts ? opts.clientX : 0;
      if (clientX == null) dart.nullFailed(I[166], 31936, 11, "clientX");
      let clientY = opts && 'clientY' in opts ? opts.clientY : 0;
      if (clientY == null) dart.nullFailed(I[166], 31937, 11, "clientY");
      let button = opts && 'button' in opts ? opts.button : 0;
      if (button == null) dart.nullFailed(I[166], 31938, 11, "button");
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 31939, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 31940, 12, "cancelable");
      let ctrlKey = opts && 'ctrlKey' in opts ? opts.ctrlKey : false;
      if (ctrlKey == null) dart.nullFailed(I[166], 31941, 12, "ctrlKey");
      let altKey = opts && 'altKey' in opts ? opts.altKey : false;
      if (altKey == null) dart.nullFailed(I[166], 31942, 12, "altKey");
      let shiftKey = opts && 'shiftKey' in opts ? opts.shiftKey : false;
      if (shiftKey == null) dart.nullFailed(I[166], 31943, 12, "shiftKey");
      let metaKey = opts && 'metaKey' in opts ? opts.metaKey : false;
      if (metaKey == null) dart.nullFailed(I[166], 31944, 12, "metaKey");
      let relatedTarget = opts && 'relatedTarget' in opts ? opts.relatedTarget : null;
      return html$.WheelEvent.new(type, {view: view, deltaX: deltaX, deltaY: deltaY, deltaZ: deltaZ, deltaMode: deltaMode, detail: detail, screenX: screenX, screenY: screenY, clientX: clientX, clientY: clientY, button: button, canBubble: canBubble, cancelable: cancelable, ctrlKey: ctrlKey, altKey: altKey, shiftKey: shiftKey, metaKey: metaKey, relatedTarget: relatedTarget});
    }
    static __(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 31975, 31, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$.WheelEvent._create_1(type, eventInitDict_1);
      }
      return html$.WheelEvent._create_2(type);
    }
    static ['_#_#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 31975, 31, "type");
      return html$.WheelEvent.__(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new WheelEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new WheelEvent(type);
    }
    get [S$3._deltaX]() {
      return this.deltaX;
    }
    get [S$3._deltaY]() {
      return this.deltaY;
    }
    get [S$3.$deltaZ]() {
      return this.deltaZ;
    }
    get [S$2.$deltaY]() {
      let value = this.deltaY;
      if (value != null) return value;
      dart.throw(new core.UnsupportedError.new("deltaY is not supported"));
    }
    get [S$2.$deltaX]() {
      let value = this.deltaX;
      if (value != null) return value;
      dart.throw(new core.UnsupportedError.new("deltaX is not supported"));
    }
    get [S$3.$deltaMode]() {
      if (!!this.deltaMode) {
        return this.deltaMode;
      }
      return 0;
    }
    get [S$3._wheelDelta]() {
      return this.wheelDelta;
    }
    get [S$3._wheelDeltaX]() {
      return this.wheelDeltaX;
    }
    get [S$0._detail]() {
      return this.detail;
    }
    get [S$3._hasInitMouseScrollEvent]() {
      return !!this.initMouseScrollEvent;
    }
    [S$3._initMouseScrollEvent](...args) {
      return this.initMouseScrollEvent.apply(this, args);
    }
    get [S$3._hasInitWheelEvent]() {
      return !!this.initWheelEvent;
    }
    [S$3._initWheelEvent](...args) {
      return this.initWheelEvent.apply(this, args);
    }
  };
  dart.addRtiResources(html$.WheelEvent, ["html|WheelEvent"]);
  dart.setMethodSignature(html$.WheelEvent, () => dart.global.Object.setPrototypeOf({
    [S$3._initMouseScrollEvent]: T$6.StringAndboolAndbool__Tovoid$2(),
    [S$3._initWheelEvent]: T$6.StringAndboolAndbool__Tovoid$3()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.WheelEvent))));
  dart.setStaticMethodSignature(html$.WheelEvent, () => ['new', '__', '_create_1', '_create_2']);
  dart.setGetterSignature(html$.WheelEvent, () => dart.global.Object.setPrototypeOf({
    [S$3._deltaX]: T$3.numN(),
    [S$3._deltaY]: T$3.numN(),
    [S$3.$deltaZ]: T$3.numN(),
    [S$2.$deltaY]: T$.num(),
    [S$2.$deltaX]: T$.num(),
    [S$3.$deltaMode]: T$.int(),
    [S$3._wheelDelta]: T$.num(),
    [S$3._wheelDeltaX]: T$.num(),
    [S$0._detail]: T$.num(),
    [S$3._hasInitMouseScrollEvent]: T$.bool(),
    [S$3._hasInitWheelEvent]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.WheelEvent))));
  dart.setLibraryUri(html$.WheelEvent, I[167]);
  dart.setStaticFieldSignature(html$.WheelEvent, () => ['DOM_DELTA_LINE', 'DOM_DELTA_PAGE', 'DOM_DELTA_PIXEL']);
  dart.defineLazy(html$.WheelEvent, {
    /*html$.WheelEvent.DOM_DELTA_LINE*/get DOM_DELTA_LINE() {
      return 1;
    },
    /*html$.WheelEvent.DOM_DELTA_PAGE*/get DOM_DELTA_PAGE() {
      return 2;
    },
    /*html$.WheelEvent.DOM_DELTA_PIXEL*/get DOM_DELTA_PIXEL() {
      return 0;
    }
  }, false);
  dart.registerExtension("WheelEvent", html$.WheelEvent);
  html$.Window = class Window extends html$.EventTarget {
    get [S$3.$animationFrame]() {
      let completer = G$.CompleterOfnum().sync();
      this[S$3.$requestAnimationFrame](dart.fn(time => {
        if (time == null) dart.nullFailed(I[166], 32147, 28, "time");
        completer.complete(time);
      }, T$2.numTovoid()));
      return completer.future;
    }
    get [S$3.$document]() {
      return this.document;
    }
    [S$3._open2](url, name) {
      return this.open(url, name);
    }
    [S$3._open3](url, name, options) {
      return this.open(url, name, options);
    }
    [S.$open](url, name, options = null) {
      if (url == null) dart.nullFailed(I[166], 32178, 26, "url");
      if (name == null) dart.nullFailed(I[166], 32178, 38, "name");
      let win = options == null ? this[S$3._open2](url, name) : this[S$3._open3](url, name, options);
      return html$._DOMWindowCrossFrame._createSafe(win);
    }
    get [S$0.$location]() {
      return T$6.Location()[_as](this[S$3._location]);
    }
    set [S$0.$location](value) {
      if (value == null) dart.nullFailed(I[166], 32199, 16, "value");
      this[S$3._location] = value;
    }
    get [S$3._location]() {
      return this.location;
    }
    set [S$3._location](value) {
      this.location = value;
    }
    [S$3.$requestAnimationFrame](callback) {
      if (callback == null) dart.nullFailed(I[166], 32225, 50, "callback");
      this[S$3._ensureRequestAnimationFrame]();
      return this[S$3._requestAnimationFrame](dart.nullCheck(html$._wrapZone(T$.num(), callback)));
    }
    [S$3.$cancelAnimationFrame](id) {
      if (id == null) dart.nullFailed(I[166], 32238, 33, "id");
      this[S$3._ensureRequestAnimationFrame]();
      this[S$3._cancelAnimationFrame](id);
    }
    [S$3._requestAnimationFrame](...args) {
      return this.requestAnimationFrame.apply(this, args);
    }
    [S$3._cancelAnimationFrame](...args) {
      return this.cancelAnimationFrame.apply(this, args);
    }
    [S$3._ensureRequestAnimationFrame]() {
      if (!!(this.requestAnimationFrame && this.cancelAnimationFrame)) return;
      (function($this) {
        var vendors = ['ms', 'moz', 'webkit', 'o'];
        for (var i = 0; i < vendors.length && !$this.requestAnimationFrame; ++i) {
          $this.requestAnimationFrame = $this[vendors[i] + 'RequestAnimationFrame'];
          $this.cancelAnimationFrame = $this[vendors[i] + 'CancelAnimationFrame'] || $this[vendors[i] + 'CancelRequestAnimationFrame'];
        }
        if ($this.requestAnimationFrame && $this.cancelAnimationFrame) return;
        $this.requestAnimationFrame = function(callback) {
          return window.setTimeout(function() {
            callback(Date.now());
          }, 16);
        };
        $this.cancelAnimationFrame = function(id) {
          clearTimeout(id);
        };
      })(this);
    }
    get [S$0.$indexedDB]() {
      return this.indexedDB || this.webkitIndexedDB || this.mozIndexedDB;
    }
    get [S$2.$console]() {
      return html$.Console._safeConsole;
    }
    [S$3.$requestFileSystem](size, opts) {
      if (size == null) dart.nullFailed(I[166], 32306, 44, "size");
      let persistent = opts && 'persistent' in opts ? opts.persistent : false;
      if (persistent == null) dart.nullFailed(I[166], 32306, 56, "persistent");
      return this[S$3._requestFileSystem](dart.test(persistent) ? 1 : 0, size);
    }
    static get supportsPointConversions() {
      return html$.DomPoint.supported;
    }
    static ['_#_#tearOff']() {
      return html$.Window.__();
    }
    get [S$3.$animationWorklet]() {
      return this.animationWorklet;
    }
    get [S$3.$applicationCache]() {
      return this.applicationCache;
    }
    get [S$3.$audioWorklet]() {
      return this.audioWorklet;
    }
    get [S$0.$caches]() {
      return this.caches;
    }
    get [S$1.$closed]() {
      return this.closed;
    }
    get [S$3.$cookieStore]() {
      return this.cookieStore;
    }
    get [S$0.$crypto]() {
      return this.crypto;
    }
    get [S$3.$customElements]() {
      return this.customElements;
    }
    get [S$3.$defaultStatus]() {
      return this.defaultStatus;
    }
    set [S$3.$defaultStatus](value) {
      this.defaultStatus = value;
    }
    get [S$3.$defaultstatus]() {
      return this.defaultstatus;
    }
    set [S$3.$defaultstatus](value) {
      this.defaultstatus = value;
    }
    get [S$2.$devicePixelRatio]() {
      return this.devicePixelRatio;
    }
    get [S$3.$external]() {
      return this.external;
    }
    get [S$3.$history]() {
      return this.history;
    }
    get [S$3.$innerHeight]() {
      return this.innerHeight;
    }
    get [S$3.$innerWidth]() {
      return this.innerWidth;
    }
    get [S$0.$isSecureContext]() {
      return this.isSecureContext;
    }
    get [S$3.$localStorage]() {
      return this.localStorage;
    }
    get [S$3.$locationbar]() {
      return this.locationbar;
    }
    get [S$3.$menubar]() {
      return this.menubar;
    }
    get [$name]() {
      return this.name;
    }
    set [$name](value) {
      this.name = value;
    }
    get [S$0.$navigator]() {
      return this.navigator;
    }
    get [S$3.$offscreenBuffering]() {
      return this.offscreenBuffering;
    }
    get [S$3.$opener]() {
      return html$._convertNativeToDart_Window(this[S$3._get_opener]);
    }
    get [S$3._get_opener]() {
      return this.opener;
    }
    set [S$3.$opener](value) {
      this.opener = value;
    }
    get [S$.$orientation]() {
      return this.orientation;
    }
    get [S$.$origin]() {
      return this.origin;
    }
    get [S$3.$outerHeight]() {
      return this.outerHeight;
    }
    get [S$3.$outerWidth]() {
      return this.outerWidth;
    }
    get [S$3._pageXOffset]() {
      return this.pageXOffset;
    }
    get [S$3._pageYOffset]() {
      return this.pageYOffset;
    }
    get [S.$parent]() {
      return html$._convertNativeToDart_Window(this[S$3._get_parent]);
    }
    get [S$3._get_parent]() {
      return this.parent;
    }
    get [S$0.$performance]() {
      return this.performance;
    }
    get [S$1.$screen]() {
      return this.screen;
    }
    get [S$3.$screenLeft]() {
      return this.screenLeft;
    }
    get [S$3.$screenTop]() {
      return this.screenTop;
    }
    get [S$3.$screenX]() {
      return this.screenX;
    }
    get [S$3.$screenY]() {
      return this.screenY;
    }
    get [S$3.$scrollbars]() {
      return this.scrollbars;
    }
    get [S$0.$self]() {
      return html$._convertNativeToDart_Window(this[S$3._get_self]);
    }
    get [S$3._get_self]() {
      return this.self;
    }
    get [S$3.$sessionStorage]() {
      return this.sessionStorage;
    }
    get [S$3.$speechSynthesis]() {
      return this.speechSynthesis;
    }
    get [S$.$status]() {
      return this.status;
    }
    set [S$.$status](value) {
      this.status = value;
    }
    get [S$3.$statusbar]() {
      return this.statusbar;
    }
    get [S$3.$styleMedia]() {
      return this.styleMedia;
    }
    get [S$3.$toolbar]() {
      return this.toolbar;
    }
    get [$top]() {
      return html$._convertNativeToDart_Window(this[S$3._get_top]);
    }
    get [S$3._get_top]() {
      return this.top;
    }
    get [S$3.$visualViewport]() {
      return this.visualViewport;
    }
    get [S$1.$window]() {
      return html$._convertNativeToDart_Window(this[S$1._get_window]);
    }
    get [S$1._get_window]() {
      return this.window;
    }
    [S$.__getter__](index_OR_name) {
      if (T$.int()[_is](index_OR_name)) {
        return dart.nullCheck(html$._convertNativeToDart_Window(this[S$3.__getter___1](index_OR_name)));
      }
      if (typeof index_OR_name == 'string') {
        return dart.nullCheck(html$._convertNativeToDart_Window(this[S$3.__getter___2](index_OR_name)));
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$3.__getter___1](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$3.__getter___2](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$3.$alert](...args) {
      return this.alert.apply(this, args);
    }
    [S$3.$cancelIdleCallback](...args) {
      return this.cancelIdleCallback.apply(this, args);
    }
    [S.$close](...args) {
      return this.close.apply(this, args);
    }
    [S$3.$confirm](...args) {
      return this.confirm.apply(this, args);
    }
    [S$.$fetch](input, init = null) {
      let init_dict = null;
      if (init != null) {
        init_dict = html_common.convertDartToNative_Dictionary(init);
      }
      return js_util.promiseToFuture(T$.dynamic(), this.fetch(input, init_dict));
    }
    [S$3.$find](...args) {
      return this.find.apply(this, args);
    }
    [S._getComputedStyle](...args) {
      return this.getComputedStyle.apply(this, args);
    }
    [S$3.$getComputedStyleMap](...args) {
      return this.getComputedStyleMap.apply(this, args);
    }
    [S$3.$getMatchedCssRules](...args) {
      return this.getMatchedCSSRules.apply(this, args);
    }
    [S$1.$getSelection](...args) {
      return this.getSelection.apply(this, args);
    }
    [S$3.$matchMedia](...args) {
      return this.matchMedia.apply(this, args);
    }
    [S$3.$moveBy](...args) {
      return this.moveBy.apply(this, args);
    }
    [S$1._moveTo](...args) {
      return this.moveTo.apply(this, args);
    }
    [S$.$postMessage](message, targetOrigin, transfer = null) {
      if (targetOrigin == null) dart.nullFailed(I[166], 33070, 44, "targetOrigin");
      if (transfer != null) {
        let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
        this[S$0._postMessage_1](message_1, targetOrigin, transfer);
        return;
      }
      let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
      this[S$0._postMessage_2](message_1, targetOrigin);
      return;
    }
    [S$0._postMessage_1](...args) {
      return this.postMessage.apply(this, args);
    }
    [S$0._postMessage_2](...args) {
      return this.postMessage.apply(this, args);
    }
    [S$3.$print](...args) {
      return this.print.apply(this, args);
    }
    [S$3.$requestIdleCallback](callback, options = null) {
      if (callback == null) dart.nullFailed(I[166], 33097, 47, "callback");
      if (options != null) {
        let callback_1 = _js_helper.convertDartClosureToJS(T$6.IdleDeadlineTovoid(), callback, 1);
        let options_2 = html_common.convertDartToNative_Dictionary(options);
        return this[S$3._requestIdleCallback_1](callback_1, options_2);
      }
      let callback_1 = _js_helper.convertDartClosureToJS(T$6.IdleDeadlineTovoid(), callback, 1);
      return this[S$3._requestIdleCallback_2](callback_1);
    }
    [S$3._requestIdleCallback_1](...args) {
      return this.requestIdleCallback.apply(this, args);
    }
    [S$3._requestIdleCallback_2](...args) {
      return this.requestIdleCallback.apply(this, args);
    }
    [S$3.$resizeBy](...args) {
      return this.resizeBy.apply(this, args);
    }
    [S$3.$resizeTo](...args) {
      return this.resizeTo.apply(this, args);
    }
    [S.$scroll](options_OR_x = null, y = null, scrollOptions = null) {
      if (options_OR_x == null && y == null && scrollOptions == null) {
        this[S._scroll_1]();
        return;
      }
      if (T$.Map()[_is](options_OR_x) && y == null && scrollOptions == null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options_OR_x);
        this[S._scroll_2](options_1);
        return;
      }
      if (typeof y == 'number' && typeof options_OR_x == 'number' && scrollOptions == null) {
        this[S._scroll_3](options_OR_x, y);
        return;
      }
      if (T$.int()[_is](y) && T$.int()[_is](options_OR_x) && scrollOptions == null) {
        this[S$3._scroll_4](options_OR_x, y);
        return;
      }
      if (scrollOptions != null && T$.int()[_is](y) && T$.int()[_is](options_OR_x)) {
        let scrollOptions_1 = html_common.convertDartToNative_Dictionary(scrollOptions);
        this[S$3._scroll_5](options_OR_x, y, scrollOptions_1);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S._scroll_1](...args) {
      return this.scroll.apply(this, args);
    }
    [S._scroll_2](...args) {
      return this.scroll.apply(this, args);
    }
    [S._scroll_3](...args) {
      return this.scroll.apply(this, args);
    }
    [S$3._scroll_4](...args) {
      return this.scroll.apply(this, args);
    }
    [S$3._scroll_5](...args) {
      return this.scroll.apply(this, args);
    }
    [S.$scrollBy](options_OR_x = null, y = null, scrollOptions = null) {
      if (options_OR_x == null && y == null && scrollOptions == null) {
        this[S._scrollBy_1]();
        return;
      }
      if (T$.Map()[_is](options_OR_x) && y == null && scrollOptions == null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options_OR_x);
        this[S._scrollBy_2](options_1);
        return;
      }
      if (typeof y == 'number' && typeof options_OR_x == 'number' && scrollOptions == null) {
        this[S._scrollBy_3](options_OR_x, y);
        return;
      }
      if (T$.int()[_is](y) && T$.int()[_is](options_OR_x) && scrollOptions == null) {
        this[S$3._scrollBy_4](options_OR_x, y);
        return;
      }
      if (scrollOptions != null && T$.int()[_is](y) && T$.int()[_is](options_OR_x)) {
        let scrollOptions_1 = html_common.convertDartToNative_Dictionary(scrollOptions);
        this[S$3._scrollBy_5](options_OR_x, y, scrollOptions_1);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S._scrollBy_1](...args) {
      return this.scrollBy.apply(this, args);
    }
    [S._scrollBy_2](...args) {
      return this.scrollBy.apply(this, args);
    }
    [S._scrollBy_3](...args) {
      return this.scrollBy.apply(this, args);
    }
    [S$3._scrollBy_4](...args) {
      return this.scrollBy.apply(this, args);
    }
    [S$3._scrollBy_5](...args) {
      return this.scrollBy.apply(this, args);
    }
    [S.$scrollTo](options_OR_x = null, y = null, scrollOptions = null) {
      if (options_OR_x == null && y == null && scrollOptions == null) {
        this[S._scrollTo_1]();
        return;
      }
      if (T$.Map()[_is](options_OR_x) && y == null && scrollOptions == null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options_OR_x);
        this[S._scrollTo_2](options_1);
        return;
      }
      if (typeof y == 'number' && typeof options_OR_x == 'number' && scrollOptions == null) {
        this[S._scrollTo_3](options_OR_x, y);
        return;
      }
      if (T$.int()[_is](y) && T$.int()[_is](options_OR_x) && scrollOptions == null) {
        this[S$3._scrollTo_4](options_OR_x, y);
        return;
      }
      if (scrollOptions != null && T$.int()[_is](y) && T$.int()[_is](options_OR_x)) {
        let scrollOptions_1 = html_common.convertDartToNative_Dictionary(scrollOptions);
        this[S$3._scrollTo_5](options_OR_x, y, scrollOptions_1);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S._scrollTo_1](...args) {
      return this.scrollTo.apply(this, args);
    }
    [S._scrollTo_2](...args) {
      return this.scrollTo.apply(this, args);
    }
    [S._scrollTo_3](...args) {
      return this.scrollTo.apply(this, args);
    }
    [S$3._scrollTo_4](...args) {
      return this.scrollTo.apply(this, args);
    }
    [S$3._scrollTo_5](...args) {
      return this.scrollTo.apply(this, args);
    }
    [S$.$stop](...args) {
      return this.stop.apply(this, args);
    }
    [S$3.__requestFileSystem](...args) {
      return this.webkitRequestFileSystem.apply(this, args);
    }
    [S$3._requestFileSystem](type, size) {
      if (type == null) dart.nullFailed(I[166], 33430, 45, "type");
      if (size == null) dart.nullFailed(I[166], 33430, 55, "size");
      let completer = G$.CompleterOfFileSystem().new();
      this[S$3.__requestFileSystem](type, size, dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 33432, 38, "value");
        _js_helper.applyExtension("DOMFileSystem", value);
        _js_helper.applyExtension("WebKitFileSystem", value);
        _js_helper.applyExtension("webkitFileSystem", value);
        _js_helper.applyExtension("FileSystem", value);
        _js_helper.applyExtension("DirectoryEntry", value.root);
        _js_helper.applyExtension("webkitFileSystemDirectoryEntry", value.root);
        _js_helper.applyExtension("FileSystemDirectoryEntry", value.root);
        completer.complete(value);
      }, T$6.FileSystemTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 33441, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$3._resolveLocalFileSystemUrl](...args) {
      return this.webkitResolveLocalFileSystemURL.apply(this, args);
    }
    [S$3.$resolveLocalFileSystemUrl](url) {
      if (url == null) dart.nullFailed(I[166], 33472, 50, "url");
      let completer = G$.CompleterOfEntry().new();
      this[S$3._resolveLocalFileSystemUrl](url, dart.fn(value => {
        if (value == null) dart.nullFailed(I[166], 33474, 38, "value");
        completer.complete(value);
      }, T$5.EntryTovoid()), dart.fn(error => {
        if (error == null) dart.nullFailed(I[166], 33476, 9, "error");
        completer.completeError(error);
      }, T$5.DomExceptionTovoid()));
      return completer.future;
    }
    [S$0.$atob](...args) {
      return this.atob.apply(this, args);
    }
    [S$0.$btoa](...args) {
      return this.btoa.apply(this, args);
    }
    [S$0._setInterval_String](...args) {
      return this.setInterval.apply(this, args);
    }
    [S$0._setTimeout_String](...args) {
      return this.setTimeout.apply(this, args);
    }
    [S$0._clearInterval](...args) {
      return this.clearInterval.apply(this, args);
    }
    [S$0._clearTimeout](...args) {
      return this.clearTimeout.apply(this, args);
    }
    [S$0._setInterval](...args) {
      return this.setInterval.apply(this, args);
    }
    [S$0._setTimeout](...args) {
      return this.setTimeout.apply(this, args);
    }
    get [S$3.$onContentLoaded]() {
      return html$.Window.contentLoadedEvent.forTarget(this);
    }
    get [S.$onAbort]() {
      return html$.Element.abortEvent.forTarget(this);
    }
    get [S.$onBlur]() {
      return html$.Element.blurEvent.forTarget(this);
    }
    get [S.$onCanPlay]() {
      return html$.Element.canPlayEvent.forTarget(this);
    }
    get [S.$onCanPlayThrough]() {
      return html$.Element.canPlayThroughEvent.forTarget(this);
    }
    get [S.$onChange]() {
      return html$.Element.changeEvent.forTarget(this);
    }
    get [S.$onClick]() {
      return html$.Element.clickEvent.forTarget(this);
    }
    get [S.$onContextMenu]() {
      return html$.Element.contextMenuEvent.forTarget(this);
    }
    get [S.$onDoubleClick]() {
      return html$.Element.doubleClickEvent.forTarget(this);
    }
    get [S$3.$onDeviceMotion]() {
      return html$.Window.deviceMotionEvent.forTarget(this);
    }
    get [S$3.$onDeviceOrientation]() {
      return html$.Window.deviceOrientationEvent.forTarget(this);
    }
    get [S.$onDrag]() {
      return html$.Element.dragEvent.forTarget(this);
    }
    get [S.$onDragEnd]() {
      return html$.Element.dragEndEvent.forTarget(this);
    }
    get [S.$onDragEnter]() {
      return html$.Element.dragEnterEvent.forTarget(this);
    }
    get [S.$onDragLeave]() {
      return html$.Element.dragLeaveEvent.forTarget(this);
    }
    get [S.$onDragOver]() {
      return html$.Element.dragOverEvent.forTarget(this);
    }
    get [S.$onDragStart]() {
      return html$.Element.dragStartEvent.forTarget(this);
    }
    get [S.$onDrop]() {
      return html$.Element.dropEvent.forTarget(this);
    }
    get [S.$onDurationChange]() {
      return html$.Element.durationChangeEvent.forTarget(this);
    }
    get [S.$onEmptied]() {
      return html$.Element.emptiedEvent.forTarget(this);
    }
    get [S.$onEnded]() {
      return html$.Element.endedEvent.forTarget(this);
    }
    get [S.$onError]() {
      return html$.Element.errorEvent.forTarget(this);
    }
    get [S.$onFocus]() {
      return html$.Element.focusEvent.forTarget(this);
    }
    get [S$.$onHashChange]() {
      return html$.Window.hashChangeEvent.forTarget(this);
    }
    get [S.$onInput]() {
      return html$.Element.inputEvent.forTarget(this);
    }
    get [S.$onInvalid]() {
      return html$.Element.invalidEvent.forTarget(this);
    }
    get [S.$onKeyDown]() {
      return html$.Element.keyDownEvent.forTarget(this);
    }
    get [S.$onKeyPress]() {
      return html$.Element.keyPressEvent.forTarget(this);
    }
    get [S.$onKeyUp]() {
      return html$.Element.keyUpEvent.forTarget(this);
    }
    get [S.$onLoad]() {
      return html$.Element.loadEvent.forTarget(this);
    }
    get [S.$onLoadedData]() {
      return html$.Element.loadedDataEvent.forTarget(this);
    }
    get [S.$onLoadedMetadata]() {
      return html$.Element.loadedMetadataEvent.forTarget(this);
    }
    get [S$1.$onLoadStart]() {
      return html$.Window.loadStartEvent.forTarget(this);
    }
    get [S$.$onMessage]() {
      return html$.Window.messageEvent.forTarget(this);
    }
    get [S.$onMouseDown]() {
      return html$.Element.mouseDownEvent.forTarget(this);
    }
    get [S.$onMouseEnter]() {
      return html$.Element.mouseEnterEvent.forTarget(this);
    }
    get [S.$onMouseLeave]() {
      return html$.Element.mouseLeaveEvent.forTarget(this);
    }
    get [S.$onMouseMove]() {
      return html$.Element.mouseMoveEvent.forTarget(this);
    }
    get [S$.$onMouseOut]() {
      return html$.Element.mouseOutEvent.forTarget(this);
    }
    get [S$.$onMouseOver]() {
      return html$.Element.mouseOverEvent.forTarget(this);
    }
    get [S$.$onMouseUp]() {
      return html$.Element.mouseUpEvent.forTarget(this);
    }
    get [S$.$onMouseWheel]() {
      return html$.Element.mouseWheelEvent.forTarget(this);
    }
    get [S$.$onOffline]() {
      return html$.Window.offlineEvent.forTarget(this);
    }
    get [S$.$onOnline]() {
      return html$.Window.onlineEvent.forTarget(this);
    }
    get [S$3.$onPageHide]() {
      return html$.Window.pageHideEvent.forTarget(this);
    }
    get [S$3.$onPageShow]() {
      return html$.Window.pageShowEvent.forTarget(this);
    }
    get [S$.$onPause]() {
      return html$.Element.pauseEvent.forTarget(this);
    }
    get [S$.$onPlay]() {
      return html$.Element.playEvent.forTarget(this);
    }
    get [S$.$onPlaying]() {
      return html$.Element.playingEvent.forTarget(this);
    }
    get [S$.$onPopState]() {
      return html$.Window.popStateEvent.forTarget(this);
    }
    get [S$.$onProgress]() {
      return html$.Window.progressEvent.forTarget(this);
    }
    get [S$.$onRateChange]() {
      return html$.Element.rateChangeEvent.forTarget(this);
    }
    get [S$.$onReset]() {
      return html$.Element.resetEvent.forTarget(this);
    }
    get [S$.$onResize]() {
      return html$.Element.resizeEvent.forTarget(this);
    }
    get [S$.$onScroll]() {
      return html$.Element.scrollEvent.forTarget(this);
    }
    get [S$.$onSearch]() {
      return html$.Element.searchEvent.forTarget(this);
    }
    get [S$.$onSeeked]() {
      return html$.Element.seekedEvent.forTarget(this);
    }
    get [S$.$onSeeking]() {
      return html$.Element.seekingEvent.forTarget(this);
    }
    get [S$.$onSelect]() {
      return html$.Element.selectEvent.forTarget(this);
    }
    get [S$.$onStalled]() {
      return html$.Element.stalledEvent.forTarget(this);
    }
    get [S$.$onStorage]() {
      return html$.Window.storageEvent.forTarget(this);
    }
    get [S$.$onSubmit]() {
      return html$.Element.submitEvent.forTarget(this);
    }
    get [S$.$onSuspend]() {
      return html$.Element.suspendEvent.forTarget(this);
    }
    get [S$.$onTimeUpdate]() {
      return html$.Element.timeUpdateEvent.forTarget(this);
    }
    get [S$.$onTouchCancel]() {
      return html$.Element.touchCancelEvent.forTarget(this);
    }
    get [S$.$onTouchEnd]() {
      return html$.Element.touchEndEvent.forTarget(this);
    }
    get [S$.$onTouchMove]() {
      return html$.Element.touchMoveEvent.forTarget(this);
    }
    get [S$.$onTouchStart]() {
      return html$.Element.touchStartEvent.forTarget(this);
    }
    get [S$.$onTransitionEnd]() {
      return html$.Element.transitionEndEvent.forTarget(this);
    }
    get [S$.$onUnload]() {
      return html$.Window.unloadEvent.forTarget(this);
    }
    get [S$.$onVolumeChange]() {
      return html$.Element.volumeChangeEvent.forTarget(this);
    }
    get [S$.$onWaiting]() {
      return html$.Element.waitingEvent.forTarget(this);
    }
    get [S$3.$onAnimationEnd]() {
      return html$.Window.animationEndEvent.forTarget(this);
    }
    get [S$3.$onAnimationIteration]() {
      return html$.Window.animationIterationEvent.forTarget(this);
    }
    get [S$3.$onAnimationStart]() {
      return html$.Window.animationStartEvent.forTarget(this);
    }
    get [S$3.$onBeforeUnload]() {
      return html$.Window.beforeUnloadEvent.forTarget(this);
    }
    get [S$.$onWheel]() {
      return html$.Element.wheelEvent.forTarget(this);
    }
    [S$.$moveTo](p) {
      if (p == null) dart.nullFailed(I[166], 33758, 21, "p");
      this[S$1._moveTo](p.x[$toInt](), p.y[$toInt]());
    }
    get [S$3.$pageXOffset]() {
      return this.pageXOffset[$round]();
    }
    get [S$3.$pageYOffset]() {
      return this.pageYOffset[$round]();
    }
    get [S$3.$scrollX]() {
      return "scrollX" in this ? this.scrollX[$round]() : dart.nullCheck(this[S$3.$document].documentElement)[S.$scrollLeft];
    }
    get [S$3.$scrollY]() {
      return "scrollY" in this ? this.scrollY[$round]() : dart.nullCheck(this[S$3.$document].documentElement)[S.$scrollTop];
    }
  };
  dart.addRtiResources(html$.Window, ["html|Window", "html|GlobalEventHandlers", "html|WindowBase64", "html|WindowEventHandlers", "html|_WindowTimers", "html|WindowBase", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.Window, () => dart.global.Object.setPrototypeOf({
    [S$3._open2]: T$6.dynamicAnddynamicToWindowBaseN(),
    [S$3._open3]: T$6.dynamicAnddynamicAnddynamicToWindowBaseN(),
    [S.$open]: T$6.StringAndStringAndStringNToWindowBase(),
    [S$3.$requestAnimationFrame]: T$6.FnToint$1(),
    [S$3.$cancelAnimationFrame]: T$.intTovoid(),
    [S$3._requestAnimationFrame]: T$6.FnToint$1(),
    [S$3._cancelAnimationFrame]: T$.intTovoid(),
    [S$3._ensureRequestAnimationFrame]: T$.VoidTodynamic(),
    [S$3.$requestFileSystem]: T$6.int__ToFutureOfFileSystem(),
    [S$.__getter__]: T$6.dynamicToWindowBase(),
    [S$3.__getter___1]: T$2.intTodynamic(),
    [S$3.__getter___2]: T$.StringTodynamic(),
    [S$3.$alert]: T$4.StringNTovoid$1(),
    [S$3.$cancelIdleCallback]: T$.intTovoid(),
    [S.$close]: T$.VoidTovoid(),
    [S$3.$confirm]: T$6.StringNTobool$1(),
    [S$.$fetch]: T$4.dynamicAndMapNToFuture(),
    [S$3.$find]: T$6.StringNAndboolNAndboolN__Tobool(),
    [S._getComputedStyle]: T$6.ElementAndStringNToCssStyleDeclaration(),
    [S$3.$getComputedStyleMap]: T$6.ElementAndStringNToStylePropertyMapReadonly(),
    [S$3.$getMatchedCssRules]: T$6.ElementNAndStringNToListOfCssRule(),
    [S$1.$getSelection]: T$5.VoidToSelectionN(),
    [S$3.$matchMedia]: T$6.StringToMediaQueryList(),
    [S$3.$moveBy]: T$.intAndintTovoid(),
    [S$1._moveTo]: T$.intAndintTovoid(),
    [S$.$postMessage]: T$6.dynamicAndStringAndListNOfObjectTovoid(),
    [S$0._postMessage_1]: T$6.dynamicAnddynamicAndListOfObjectTovoid(),
    [S$0._postMessage_2]: T$.dynamicAnddynamicTovoid(),
    [S$3.$print]: T$.VoidTovoid(),
    [S$3.$requestIdleCallback]: T$6.FnAndMapNToint(),
    [S$3._requestIdleCallback_1]: T$.dynamicAnddynamicToint(),
    [S$3._requestIdleCallback_2]: T$0.dynamicToint(),
    [S$3.$resizeBy]: T$.intAndintTovoid(),
    [S$3.$resizeTo]: T$.intAndintTovoid(),
    [S.$scroll]: T$6.dynamicAnddynamicAndMapNTovoid(),
    [S._scroll_1]: T$.VoidTovoid(),
    [S._scroll_2]: T$.dynamicTovoid(),
    [S._scroll_3]: T$6.numNAndnumNTovoid(),
    [S$3._scroll_4]: T$6.intNAndintNTovoid(),
    [S$3._scroll_5]: T$6.intNAndintNAnddynamicTovoid(),
    [S.$scrollBy]: T$6.dynamicAnddynamicAndMapNTovoid(),
    [S._scrollBy_1]: T$.VoidTovoid(),
    [S._scrollBy_2]: T$.dynamicTovoid(),
    [S._scrollBy_3]: T$6.numNAndnumNTovoid(),
    [S$3._scrollBy_4]: T$6.intNAndintNTovoid(),
    [S$3._scrollBy_5]: T$6.intNAndintNAnddynamicTovoid(),
    [S.$scrollTo]: T$6.dynamicAnddynamicAndMapNTovoid(),
    [S._scrollTo_1]: T$.VoidTovoid(),
    [S._scrollTo_2]: T$.dynamicTovoid(),
    [S._scrollTo_3]: T$6.numNAndnumNTovoid(),
    [S$3._scrollTo_4]: T$6.intNAndintNTovoid(),
    [S$3._scrollTo_5]: T$6.intNAndintNAnddynamicTovoid(),
    [S$.$stop]: T$.VoidTovoid(),
    [S$3.__requestFileSystem]: T$6.intAndintAndFn__Tovoid$2(),
    [S$3._requestFileSystem]: T$6.intAndintToFutureOfFileSystem(),
    [S$3._resolveLocalFileSystemUrl]: T$4.StringAndFnAndFnTovoid(),
    [S$3.$resolveLocalFileSystemUrl]: T$5.StringToFutureOfEntry(),
    [S$0.$atob]: T$.StringToString(),
    [S$0.$btoa]: T$.StringToString(),
    [S$0._setInterval_String]: T$4.StringAndintNAndObjectNToint(),
    [S$0._setTimeout_String]: T$4.StringAndintNAndObjectNToint(),
    [S$0._clearInterval]: T$4.intNTovoid$1(),
    [S$0._clearTimeout]: T$4.intNTovoid$1(),
    [S$0._setInterval]: T$4.ObjectAndintNToint(),
    [S$0._setTimeout]: T$4.ObjectAndintNToint(),
    [S$.$moveTo]: T$6.PointOfnumTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Window))));
  dart.setStaticMethodSignature(html$.Window, () => ['__']);
  dart.setGetterSignature(html$.Window, () => dart.global.Object.setPrototypeOf({
    [S$3.$animationFrame]: T$6.FutureOfnum(),
    [S$3.$document]: T$6.Document(),
    [S$0.$location]: T$6.Location(),
    [S$3._location]: T$.dynamic(),
    [S$0.$indexedDB]: T$4.IdbFactoryN(),
    [S$2.$console]: T$6.Console(),
    [S$3.$animationWorklet]: T$4._WorkletN(),
    [S$3.$applicationCache]: T$6.ApplicationCacheN(),
    [S$3.$audioWorklet]: T$4._WorkletN(),
    [S$0.$caches]: T$4.CacheStorageN(),
    [S$1.$closed]: T$.boolN(),
    [S$3.$cookieStore]: T$6.CookieStoreN(),
    [S$0.$crypto]: T$4.CryptoN(),
    [S$3.$customElements]: T$6.CustomElementRegistryN(),
    [S$3.$defaultStatus]: T$.StringN(),
    [S$3.$defaultstatus]: T$.StringN(),
    [S$2.$devicePixelRatio]: T$.num(),
    [S$3.$external]: T$6.ExternalN(),
    [S$3.$history]: T$6.History(),
    [S$3.$innerHeight]: T$.intN(),
    [S$3.$innerWidth]: T$.intN(),
    [S$0.$isSecureContext]: T$.boolN(),
    [S$3.$localStorage]: T$6.Storage(),
    [S$3.$locationbar]: T$6.BarPropN(),
    [S$3.$menubar]: T$6.BarPropN(),
    [$name]: T$.StringN(),
    [S$0.$navigator]: T$6.Navigator(),
    [S$3.$offscreenBuffering]: T$.boolN(),
    [S$3.$opener]: T$4.WindowBaseN(),
    [S$3._get_opener]: T$.dynamic(),
    [S$.$orientation]: T$.intN(),
    [S$.$origin]: T$.StringN(),
    [S$3.$outerHeight]: T$.int(),
    [S$3.$outerWidth]: T$.int(),
    [S$3._pageXOffset]: T$.num(),
    [S$3._pageYOffset]: T$.num(),
    [S.$parent]: T$4.WindowBaseN(),
    [S$3._get_parent]: T$.dynamic(),
    [S$0.$performance]: T$6.Performance(),
    [S$1.$screen]: T$6.ScreenN(),
    [S$3.$screenLeft]: T$.intN(),
    [S$3.$screenTop]: T$.intN(),
    [S$3.$screenX]: T$.intN(),
    [S$3.$screenY]: T$.intN(),
    [S$3.$scrollbars]: T$6.BarPropN(),
    [S$0.$self]: T$4.WindowBaseN(),
    [S$3._get_self]: T$.dynamic(),
    [S$3.$sessionStorage]: T$6.Storage(),
    [S$3.$speechSynthesis]: T$6.SpeechSynthesisN(),
    [S$.$status]: T$.StringN(),
    [S$3.$statusbar]: T$6.BarPropN(),
    [S$3.$styleMedia]: T$6.StyleMediaN(),
    [S$3.$toolbar]: T$6.BarPropN(),
    [$top]: T$4.WindowBaseN(),
    [S$3._get_top]: T$.dynamic(),
    [S$3.$visualViewport]: T$6.VisualViewportN(),
    [S$1.$window]: T$4.WindowBaseN(),
    [S$1._get_window]: T$.dynamic(),
    [S$3.$onContentLoaded]: T$3.StreamOfEvent(),
    [S.$onAbort]: T$3.StreamOfEvent(),
    [S.$onBlur]: T$3.StreamOfEvent(),
    [S.$onCanPlay]: T$3.StreamOfEvent(),
    [S.$onCanPlayThrough]: T$3.StreamOfEvent(),
    [S.$onChange]: T$3.StreamOfEvent(),
    [S.$onClick]: T$5.StreamOfMouseEvent(),
    [S.$onContextMenu]: T$5.StreamOfMouseEvent(),
    [S.$onDoubleClick]: T$3.StreamOfEvent(),
    [S$3.$onDeviceMotion]: T$6.StreamOfDeviceMotionEvent(),
    [S$3.$onDeviceOrientation]: T$6.StreamOfDeviceOrientationEvent(),
    [S.$onDrag]: T$5.StreamOfMouseEvent(),
    [S.$onDragEnd]: T$5.StreamOfMouseEvent(),
    [S.$onDragEnter]: T$5.StreamOfMouseEvent(),
    [S.$onDragLeave]: T$5.StreamOfMouseEvent(),
    [S.$onDragOver]: T$5.StreamOfMouseEvent(),
    [S.$onDragStart]: T$5.StreamOfMouseEvent(),
    [S.$onDrop]: T$5.StreamOfMouseEvent(),
    [S.$onDurationChange]: T$3.StreamOfEvent(),
    [S.$onEmptied]: T$3.StreamOfEvent(),
    [S.$onEnded]: T$3.StreamOfEvent(),
    [S.$onError]: T$3.StreamOfEvent(),
    [S.$onFocus]: T$3.StreamOfEvent(),
    [S$.$onHashChange]: T$3.StreamOfEvent(),
    [S.$onInput]: T$3.StreamOfEvent(),
    [S.$onInvalid]: T$3.StreamOfEvent(),
    [S.$onKeyDown]: T$5.StreamOfKeyboardEvent(),
    [S.$onKeyPress]: T$5.StreamOfKeyboardEvent(),
    [S.$onKeyUp]: T$5.StreamOfKeyboardEvent(),
    [S.$onLoad]: T$3.StreamOfEvent(),
    [S.$onLoadedData]: T$3.StreamOfEvent(),
    [S.$onLoadedMetadata]: T$3.StreamOfEvent(),
    [S$1.$onLoadStart]: T$3.StreamOfEvent(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent(),
    [S.$onMouseDown]: T$5.StreamOfMouseEvent(),
    [S.$onMouseEnter]: T$5.StreamOfMouseEvent(),
    [S.$onMouseLeave]: T$5.StreamOfMouseEvent(),
    [S.$onMouseMove]: T$5.StreamOfMouseEvent(),
    [S$.$onMouseOut]: T$5.StreamOfMouseEvent(),
    [S$.$onMouseOver]: T$5.StreamOfMouseEvent(),
    [S$.$onMouseUp]: T$5.StreamOfMouseEvent(),
    [S$.$onMouseWheel]: T$5.StreamOfWheelEvent(),
    [S$.$onOffline]: T$3.StreamOfEvent(),
    [S$.$onOnline]: T$3.StreamOfEvent(),
    [S$3.$onPageHide]: T$3.StreamOfEvent(),
    [S$3.$onPageShow]: T$3.StreamOfEvent(),
    [S$.$onPause]: T$3.StreamOfEvent(),
    [S$.$onPlay]: T$3.StreamOfEvent(),
    [S$.$onPlaying]: T$3.StreamOfEvent(),
    [S$.$onPopState]: T$6.StreamOfPopStateEvent(),
    [S$.$onProgress]: T$3.StreamOfEvent(),
    [S$.$onRateChange]: T$3.StreamOfEvent(),
    [S$.$onReset]: T$3.StreamOfEvent(),
    [S$.$onResize]: T$3.StreamOfEvent(),
    [S$.$onScroll]: T$3.StreamOfEvent(),
    [S$.$onSearch]: T$3.StreamOfEvent(),
    [S$.$onSeeked]: T$3.StreamOfEvent(),
    [S$.$onSeeking]: T$3.StreamOfEvent(),
    [S$.$onSelect]: T$3.StreamOfEvent(),
    [S$.$onStalled]: T$3.StreamOfEvent(),
    [S$.$onStorage]: T$6.StreamOfStorageEvent(),
    [S$.$onSubmit]: T$3.StreamOfEvent(),
    [S$.$onSuspend]: T$3.StreamOfEvent(),
    [S$.$onTimeUpdate]: T$3.StreamOfEvent(),
    [S$.$onTouchCancel]: T$5.StreamOfTouchEvent(),
    [S$.$onTouchEnd]: T$5.StreamOfTouchEvent(),
    [S$.$onTouchMove]: T$5.StreamOfTouchEvent(),
    [S$.$onTouchStart]: T$5.StreamOfTouchEvent(),
    [S$.$onTransitionEnd]: T$6.StreamOfTransitionEvent(),
    [S$.$onUnload]: T$3.StreamOfEvent(),
    [S$.$onVolumeChange]: T$3.StreamOfEvent(),
    [S$.$onWaiting]: T$3.StreamOfEvent(),
    [S$3.$onAnimationEnd]: T$6.StreamOfAnimationEvent(),
    [S$3.$onAnimationIteration]: T$6.StreamOfAnimationEvent(),
    [S$3.$onAnimationStart]: T$6.StreamOfAnimationEvent(),
    [S$3.$onBeforeUnload]: T$3.StreamOfEvent(),
    [S$.$onWheel]: T$5.StreamOfWheelEvent(),
    [S$3.$pageXOffset]: T$.int(),
    [S$3.$pageYOffset]: T$.int(),
    [S$3.$scrollX]: T$.int(),
    [S$3.$scrollY]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Window))));
  dart.setSetterSignature(html$.Window, () => dart.global.Object.setPrototypeOf({
    [S$0.$location]: T$6.LocationBase(),
    [S$3._location]: T$.dynamic(),
    [S$3.$defaultStatus]: T$.StringN(),
    [S$3.$defaultstatus]: T$.StringN(),
    [$name]: T$.StringN(),
    [S$3.$opener]: T$4.WindowBaseN(),
    [S$.$status]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.Window))));
  dart.setStaticGetterSignature(html$.Window, () => ['supportsPointConversions']);
  dart.setLibraryUri(html$.Window, I[167]);
  dart.setStaticFieldSignature(html$.Window, () => ['contentLoadedEvent', 'deviceMotionEvent', 'deviceOrientationEvent', 'hashChangeEvent', 'loadStartEvent', 'messageEvent', 'offlineEvent', 'onlineEvent', 'pageHideEvent', 'pageShowEvent', 'popStateEvent', 'progressEvent', 'storageEvent', 'unloadEvent', 'animationEndEvent', 'animationIterationEvent', 'animationStartEvent', 'PERSISTENT', 'TEMPORARY', 'beforeUnloadEvent']);
  dart.defineLazy(html$.Window, {
    /*html$.Window.contentLoadedEvent*/get contentLoadedEvent() {
      return C[440] || CT.C440;
    },
    /*html$.Window.deviceMotionEvent*/get deviceMotionEvent() {
      return C[441] || CT.C441;
    },
    /*html$.Window.deviceOrientationEvent*/get deviceOrientationEvent() {
      return C[442] || CT.C442;
    },
    /*html$.Window.hashChangeEvent*/get hashChangeEvent() {
      return C[362] || CT.C362;
    },
    /*html$.Window.loadStartEvent*/get loadStartEvent() {
      return C[443] || CT.C443;
    },
    /*html$.Window.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    },
    /*html$.Window.offlineEvent*/get offlineEvent() {
      return C[364] || CT.C364;
    },
    /*html$.Window.onlineEvent*/get onlineEvent() {
      return C[365] || CT.C365;
    },
    /*html$.Window.pageHideEvent*/get pageHideEvent() {
      return C[444] || CT.C444;
    },
    /*html$.Window.pageShowEvent*/get pageShowEvent() {
      return C[445] || CT.C445;
    },
    /*html$.Window.popStateEvent*/get popStateEvent() {
      return C[366] || CT.C366;
    },
    /*html$.Window.progressEvent*/get progressEvent() {
      return C[446] || CT.C446;
    },
    /*html$.Window.storageEvent*/get storageEvent() {
      return C[367] || CT.C367;
    },
    /*html$.Window.unloadEvent*/get unloadEvent() {
      return C[368] || CT.C368;
    },
    /*html$.Window.animationEndEvent*/get animationEndEvent() {
      return C[447] || CT.C447;
    },
    /*html$.Window.animationIterationEvent*/get animationIterationEvent() {
      return C[448] || CT.C448;
    },
    /*html$.Window.animationStartEvent*/get animationStartEvent() {
      return C[449] || CT.C449;
    },
    /*html$.Window.PERSISTENT*/get PERSISTENT() {
      return 1;
    },
    /*html$.Window.TEMPORARY*/get TEMPORARY() {
      return 0;
    },
    /*html$.Window.beforeUnloadEvent*/get beforeUnloadEvent() {
      return C[450] || CT.C450;
    }
  }, false);
  dart.registerExtension("Window", html$.Window);
  dart.registerExtension("DOMWindow", html$.Window);
  html$.NullWindowException = class NullWindowException extends core.Object {
    toString() {
      return "Attempting to use a null window opened in Window.open.";
    }
    static ['_#new#tearOff']() {
      return new html$.NullWindowException.new();
    }
  };
  (html$.NullWindowException.new = function() {
    ;
  }).prototype = html$.NullWindowException.prototype;
  dart.addRtiResources(html$.NullWindowException, ["html|NullWindowException", "core|Exception"]);
  dart.setLibraryUri(html$.NullWindowException, I[167]);
  dart.defineExtensionMethods(html$.NullWindowException, ['toString']);
  html$.WindowBase64 = class WindowBase64 extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.WindowBase64.__();
    }
  };
  dart.addRtiResources(html$.WindowBase64, ["html|WindowBase64"]);
  dart.setStaticMethodSignature(html$.WindowBase64, () => ['__']);
  dart.setLibraryUri(html$.WindowBase64, I[167]);
  html$.WindowClient = class WindowClient extends html$.Client {
    static ['_#_#tearOff']() {
      return html$.WindowClient.__();
    }
    get [S$3.$focused]() {
      return this.focused;
    }
    get [S$1.$visibilityState]() {
      return this.visibilityState;
    }
    [S.$focus]() {
      return js_util.promiseToFuture(T$4.WindowClient(), this.focus());
    }
    [S$3.$navigate](url) {
      if (url == null) dart.nullFailed(I[166], 33833, 40, "url");
      return js_util.promiseToFuture(T$4.WindowClient(), this.navigate(url));
    }
  };
  dart.addRtiResources(html$.WindowClient, ["html|WindowClient"]);
  dart.setMethodSignature(html$.WindowClient, () => dart.global.Object.setPrototypeOf({
    [S.$focus]: T$6.VoidToFutureOfWindowClient(),
    [S$3.$navigate]: T$4.StringToFutureOfWindowClient()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.WindowClient))));
  dart.setStaticMethodSignature(html$.WindowClient, () => ['__']);
  dart.setGetterSignature(html$.WindowClient, () => dart.global.Object.setPrototypeOf({
    [S$3.$focused]: T$.boolN(),
    [S$1.$visibilityState]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.WindowClient))));
  dart.setLibraryUri(html$.WindowClient, I[167]);
  dart.registerExtension("WindowClient", html$.WindowClient);
  html$.WindowEventHandlers = class WindowEventHandlers extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.WindowEventHandlers.__();
    }
    get onHashChange() {
      return html$.WindowEventHandlers.hashChangeEvent.forTarget(this);
    }
    get onMessage() {
      return html$.WindowEventHandlers.messageEvent.forTarget(this);
    }
    get onOffline() {
      return html$.WindowEventHandlers.offlineEvent.forTarget(this);
    }
    get onOnline() {
      return html$.WindowEventHandlers.onlineEvent.forTarget(this);
    }
    get onPopState() {
      return html$.WindowEventHandlers.popStateEvent.forTarget(this);
    }
    get onStorage() {
      return html$.WindowEventHandlers.storageEvent.forTarget(this);
    }
    get onUnload() {
      return html$.WindowEventHandlers.unloadEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.WindowEventHandlers, ["html|WindowEventHandlers"]);
  dart.setStaticMethodSignature(html$.WindowEventHandlers, () => ['__']);
  dart.setGetterSignature(html$.WindowEventHandlers, () => dart.global.Object.setPrototypeOf({
    onHashChange: T$3.StreamOfEvent(),
    [S$.$onHashChange]: T$3.StreamOfEvent(),
    onMessage: T$4.StreamOfMessageEvent(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent(),
    onOffline: T$3.StreamOfEvent(),
    [S$.$onOffline]: T$3.StreamOfEvent(),
    onOnline: T$3.StreamOfEvent(),
    [S$.$onOnline]: T$3.StreamOfEvent(),
    onPopState: T$6.StreamOfPopStateEvent(),
    [S$.$onPopState]: T$6.StreamOfPopStateEvent(),
    onStorage: T$6.StreamOfStorageEvent(),
    [S$.$onStorage]: T$6.StreamOfStorageEvent(),
    onUnload: T$3.StreamOfEvent(),
    [S$.$onUnload]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.WindowEventHandlers))));
  dart.setLibraryUri(html$.WindowEventHandlers, I[167]);
  dart.setStaticFieldSignature(html$.WindowEventHandlers, () => ['hashChangeEvent', 'messageEvent', 'offlineEvent', 'onlineEvent', 'popStateEvent', 'storageEvent', 'unloadEvent']);
  dart.defineExtensionAccessors(html$.WindowEventHandlers, [
    'onHashChange',
    'onMessage',
    'onOffline',
    'onOnline',
    'onPopState',
    'onStorage',
    'onUnload'
  ]);
  dart.defineLazy(html$.WindowEventHandlers, {
    /*html$.WindowEventHandlers.hashChangeEvent*/get hashChangeEvent() {
      return C[362] || CT.C362;
    },
    /*html$.WindowEventHandlers.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    },
    /*html$.WindowEventHandlers.offlineEvent*/get offlineEvent() {
      return C[364] || CT.C364;
    },
    /*html$.WindowEventHandlers.onlineEvent*/get onlineEvent() {
      return C[365] || CT.C365;
    },
    /*html$.WindowEventHandlers.popStateEvent*/get popStateEvent() {
      return C[366] || CT.C366;
    },
    /*html$.WindowEventHandlers.storageEvent*/get storageEvent() {
      return C[367] || CT.C367;
    },
    /*html$.WindowEventHandlers.unloadEvent*/get unloadEvent() {
      return C[368] || CT.C368;
    }
  }, false);
  html$.Worker = class Worker$ extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.Worker.__();
    }
    static new(scriptUrl) {
      if (scriptUrl == null) dart.nullFailed(I[166], 33914, 25, "scriptUrl");
      return html$.Worker._create_1(scriptUrl);
    }
    static ['_#new#tearOff'](scriptUrl) {
      if (scriptUrl == null) dart.nullFailed(I[166], 33914, 25, "scriptUrl");
      return html$.Worker.new(scriptUrl);
    }
    static _create_1(scriptUrl) {
      return new Worker(scriptUrl);
    }
    static get supported() {
      return typeof window.Worker != "undefined";
    }
    [S$.$postMessage](message, transfer = null) {
      if (transfer != null) {
        let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
        this[S$0._postMessage_1](message_1, transfer);
        return;
      }
      let message_1 = html_common.convertDartToNative_SerializedScriptValue(message);
      this[S$0._postMessage_2](message_1);
      return;
    }
    [S$0._postMessage_1](...args) {
      return this.postMessage.apply(this, args);
    }
    [S$0._postMessage_2](...args) {
      return this.postMessage.apply(this, args);
    }
    [S$2.$terminate](...args) {
      return this.terminate.apply(this, args);
    }
    get [S.$onError]() {
      return html$.Worker.errorEvent.forTarget(this);
    }
    get [S$.$onMessage]() {
      return html$.Worker.messageEvent.forTarget(this);
    }
  };
  dart.addRtiResources(html$.Worker, ["html|Worker", "html|AbstractWorker", "_interceptors|JavaScriptObject", "html|EventTarget", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.Worker, () => dart.global.Object.setPrototypeOf({
    [S$.$postMessage]: T$4.dynamicAndListNOfObjectTovoid(),
    [S$0._postMessage_1]: T.dynamicAndListNOfObjectTovoid$1(),
    [S$0._postMessage_2]: T$.dynamicTovoid(),
    [S$2.$terminate]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Worker))));
  dart.setStaticMethodSignature(html$.Worker, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.Worker, () => dart.global.Object.setPrototypeOf({
    [S.$onError]: T$3.StreamOfEvent(),
    [S$.$onMessage]: T$4.StreamOfMessageEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Worker))));
  dart.setStaticGetterSignature(html$.Worker, () => ['supported']);
  dart.setLibraryUri(html$.Worker, I[167]);
  dart.setStaticFieldSignature(html$.Worker, () => ['errorEvent', 'messageEvent']);
  dart.defineLazy(html$.Worker, {
    /*html$.Worker.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*html$.Worker.messageEvent*/get messageEvent() {
      return C[363] || CT.C363;
    }
  }, false);
  dart.registerExtension("Worker", html$.Worker);
  html$.WorkerPerformance = class WorkerPerformance extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$.WorkerPerformance.__();
    }
    get [S$2.$memory]() {
      return this.memory;
    }
    get [S$2.$timeOrigin]() {
      return this.timeOrigin;
    }
    [S$2.$clearMarks](...args) {
      return this.clearMarks.apply(this, args);
    }
    [S$2.$clearMeasures](...args) {
      return this.clearMeasures.apply(this, args);
    }
    [S$2.$clearResourceTimings](...args) {
      return this.clearResourceTimings.apply(this, args);
    }
    [S$2.$getEntries](...args) {
      return this.getEntries.apply(this, args);
    }
    [S$2.$getEntriesByName](...args) {
      return this.getEntriesByName.apply(this, args);
    }
    [S$2.$getEntriesByType](...args) {
      return this.getEntriesByType.apply(this, args);
    }
    [S$2.$mark](...args) {
      return this.mark.apply(this, args);
    }
    [S$2.$measure](...args) {
      return this.measure.apply(this, args);
    }
    [S$2.$now](...args) {
      return this.now.apply(this, args);
    }
    [S$2.$setResourceTimingBufferSize](...args) {
      return this.setResourceTimingBufferSize.apply(this, args);
    }
  };
  dart.addRtiResources(html$.WorkerPerformance, ["html|WorkerPerformance"]);
  dart.setMethodSignature(html$.WorkerPerformance, () => dart.global.Object.setPrototypeOf({
    [S$2.$clearMarks]: T$2.StringNTovoid(),
    [S$2.$clearMeasures]: T$2.StringNTovoid(),
    [S$2.$clearResourceTimings]: T$.VoidTovoid(),
    [S$2.$getEntries]: T.VoidToListOfPerformanceEntry(),
    [S$2.$getEntriesByName]: T.StringAndStringNToListOfPerformanceEntry(),
    [S$2.$getEntriesByType]: T.StringToListOfPerformanceEntry(),
    [S$2.$mark]: T$.StringTovoid(),
    [S$2.$measure]: T$6.StringAndStringNAndStringNTovoid$1(),
    [S$2.$now]: T$.VoidTodouble(),
    [S$2.$setResourceTimingBufferSize]: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.WorkerPerformance))));
  dart.setStaticMethodSignature(html$.WorkerPerformance, () => ['__']);
  dart.setGetterSignature(html$.WorkerPerformance, () => dart.global.Object.setPrototypeOf({
    [S$2.$memory]: T.MemoryInfoN(),
    [S$2.$timeOrigin]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.WorkerPerformance))));
  dart.setLibraryUri(html$.WorkerPerformance, I[167]);
  dart.registerExtension("WorkerPerformance", html$.WorkerPerformance);
  html$.WorkletAnimation = class WorkletAnimation$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.WorkletAnimation.__();
    }
    static new(animatorName, effects, timelines, options) {
      if (animatorName == null) dart.nullFailed(I[166], 34082, 14, "animatorName");
      if (effects == null) dart.nullFailed(I[166], 34083, 36, "effects");
      if (timelines == null) dart.nullFailed(I[166], 34084, 20, "timelines");
      let options_1 = html_common.convertDartToNative_SerializedScriptValue(options);
      return html$.WorkletAnimation._create_1(animatorName, effects, timelines, options_1);
    }
    static ['_#new#tearOff'](animatorName, effects, timelines, options) {
      if (animatorName == null) dart.nullFailed(I[166], 34082, 14, "animatorName");
      if (effects == null) dart.nullFailed(I[166], 34083, 36, "effects");
      if (timelines == null) dart.nullFailed(I[166], 34084, 20, "timelines");
      return html$.WorkletAnimation.new(animatorName, effects, timelines, options);
    }
    static _create_1(animatorName, effects, timelines, options) {
      return new WorkletAnimation(animatorName, effects, timelines, options);
    }
    get [S$.$playState]() {
      return this.playState;
    }
    [S$.$cancel](...args) {
      return this.cancel.apply(this, args);
    }
    [S$.$play](...args) {
      return this.play.apply(this, args);
    }
  };
  dart.addRtiResources(html$.WorkletAnimation, ["html|WorkletAnimation"]);
  dart.setMethodSignature(html$.WorkletAnimation, () => dart.global.Object.setPrototypeOf({
    [S$.$cancel]: T$.VoidTovoid(),
    [S$.$play]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.WorkletAnimation))));
  dart.setStaticMethodSignature(html$.WorkletAnimation, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(html$.WorkletAnimation, () => dart.global.Object.setPrototypeOf({[S$.$playState]: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.WorkletAnimation))));
  dart.setLibraryUri(html$.WorkletAnimation, I[167]);
  dart.registerExtension("WorkletAnimation", html$.WorkletAnimation);
  html$.XPathEvaluator = class XPathEvaluator$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.XPathEvaluator.__();
    }
    static new() {
      return html$.XPathEvaluator._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.XPathEvaluator.new();
    }
    static _create_1() {
      return new XPathEvaluator();
    }
    [S$3.$createExpression](...args) {
      return this.createExpression.apply(this, args);
    }
    [S$3.$createNSResolver](...args) {
      return this.createNSResolver.apply(this, args);
    }
    [S$3.$evaluate](...args) {
      return this.evaluate.apply(this, args);
    }
  };
  dart.addRtiResources(html$.XPathEvaluator, ["html|XPathEvaluator"]);
  dart.setMethodSignature(html$.XPathEvaluator, () => dart.global.Object.setPrototypeOf({
    [S$3.$createExpression]: T$6.StringAndXPathNSResolverNToXPathExpression(),
    [S$3.$createNSResolver]: T$6.NodeToXPathNSResolver(),
    [S$3.$evaluate]: T$6.StringAndNodeAndXPathNSResolverN__ToXPathResult()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.XPathEvaluator))));
  dart.setStaticMethodSignature(html$.XPathEvaluator, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$.XPathEvaluator, I[167]);
  dart.registerExtension("XPathEvaluator", html$.XPathEvaluator);
  html$.XPathExpression = class XPathExpression extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.XPathExpression.__();
    }
    [S$3.$evaluate](...args) {
      return this.evaluate.apply(this, args);
    }
  };
  dart.addRtiResources(html$.XPathExpression, ["html|XPathExpression"]);
  dart.setMethodSignature(html$.XPathExpression, () => dart.global.Object.setPrototypeOf({[S$3.$evaluate]: T$6.NodeAndintNAndObjectNToXPathResult()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.XPathExpression))));
  dart.setStaticMethodSignature(html$.XPathExpression, () => ['__']);
  dart.setLibraryUri(html$.XPathExpression, I[167]);
  dart.registerExtension("XPathExpression", html$.XPathExpression);
  html$.XPathNSResolver = class XPathNSResolver extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.XPathNSResolver.__();
    }
    [S$3.$lookupNamespaceUri](...args) {
      return this.lookupNamespaceURI.apply(this, args);
    }
  };
  dart.addRtiResources(html$.XPathNSResolver, ["html|XPathNSResolver"]);
  dart.setMethodSignature(html$.XPathNSResolver, () => dart.global.Object.setPrototypeOf({[S$3.$lookupNamespaceUri]: T$6.StringNToStringN()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.XPathNSResolver))));
  dart.setStaticMethodSignature(html$.XPathNSResolver, () => ['__']);
  dart.setLibraryUri(html$.XPathNSResolver, I[167]);
  dart.registerExtension("XPathNSResolver", html$.XPathNSResolver);
  html$.XPathResult = class XPathResult extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.XPathResult.__();
    }
    get [S$3.$booleanValue]() {
      return this.booleanValue;
    }
    get [S$3.$invalidIteratorState]() {
      return this.invalidIteratorState;
    }
    get [S$3.$numberValue]() {
      return this.numberValue;
    }
    get [S$3.$resultType]() {
      return this.resultType;
    }
    get [S$3.$singleNodeValue]() {
      return this.singleNodeValue;
    }
    get [S$3.$snapshotLength]() {
      return this.snapshotLength;
    }
    get [S$3.$stringValue]() {
      return this.stringValue;
    }
    [S$3.$iterateNext](...args) {
      return this.iterateNext.apply(this, args);
    }
    [S$3.$snapshotItem](...args) {
      return this.snapshotItem.apply(this, args);
    }
  };
  dart.addRtiResources(html$.XPathResult, ["html|XPathResult"]);
  dart.setMethodSignature(html$.XPathResult, () => dart.global.Object.setPrototypeOf({
    [S$3.$iterateNext]: T.VoidToNodeN(),
    [S$3.$snapshotItem]: T.intToNodeN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.XPathResult))));
  dart.setStaticMethodSignature(html$.XPathResult, () => ['__']);
  dart.setGetterSignature(html$.XPathResult, () => dart.global.Object.setPrototypeOf({
    [S$3.$booleanValue]: T$.boolN(),
    [S$3.$invalidIteratorState]: T$.boolN(),
    [S$3.$numberValue]: T$3.numN(),
    [S$3.$resultType]: T$.intN(),
    [S$3.$singleNodeValue]: T$3.NodeN$2(),
    [S$3.$snapshotLength]: T$.intN(),
    [S$3.$stringValue]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.XPathResult))));
  dart.setLibraryUri(html$.XPathResult, I[167]);
  dart.setStaticFieldSignature(html$.XPathResult, () => ['ANY_TYPE', 'ANY_UNORDERED_NODE_TYPE', 'BOOLEAN_TYPE', 'FIRST_ORDERED_NODE_TYPE', 'NUMBER_TYPE', 'ORDERED_NODE_ITERATOR_TYPE', 'ORDERED_NODE_SNAPSHOT_TYPE', 'STRING_TYPE', 'UNORDERED_NODE_ITERATOR_TYPE', 'UNORDERED_NODE_SNAPSHOT_TYPE']);
  dart.defineLazy(html$.XPathResult, {
    /*html$.XPathResult.ANY_TYPE*/get ANY_TYPE() {
      return 0;
    },
    /*html$.XPathResult.ANY_UNORDERED_NODE_TYPE*/get ANY_UNORDERED_NODE_TYPE() {
      return 8;
    },
    /*html$.XPathResult.BOOLEAN_TYPE*/get BOOLEAN_TYPE() {
      return 3;
    },
    /*html$.XPathResult.FIRST_ORDERED_NODE_TYPE*/get FIRST_ORDERED_NODE_TYPE() {
      return 9;
    },
    /*html$.XPathResult.NUMBER_TYPE*/get NUMBER_TYPE() {
      return 1;
    },
    /*html$.XPathResult.ORDERED_NODE_ITERATOR_TYPE*/get ORDERED_NODE_ITERATOR_TYPE() {
      return 5;
    },
    /*html$.XPathResult.ORDERED_NODE_SNAPSHOT_TYPE*/get ORDERED_NODE_SNAPSHOT_TYPE() {
      return 7;
    },
    /*html$.XPathResult.STRING_TYPE*/get STRING_TYPE() {
      return 2;
    },
    /*html$.XPathResult.UNORDERED_NODE_ITERATOR_TYPE*/get UNORDERED_NODE_ITERATOR_TYPE() {
      return 4;
    },
    /*html$.XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE*/get UNORDERED_NODE_SNAPSHOT_TYPE() {
      return 6;
    }
  }, false);
  dart.registerExtension("XPathResult", html$.XPathResult);
  html$.XmlDocument = class XmlDocument extends html$.Document {
    static ['_#_#tearOff']() {
      return html$.XmlDocument.__();
    }
  };
  dart.addRtiResources(html$.XmlDocument, ["html|XmlDocument"]);
  dart.setStaticMethodSignature(html$.XmlDocument, () => ['__']);
  dart.setLibraryUri(html$.XmlDocument, I[167]);
  dart.registerExtension("XMLDocument", html$.XmlDocument);
  html$.XmlSerializer = class XmlSerializer extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.XmlSerializer.__();
    }
    static new() {
      return html$.XmlSerializer._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.XmlSerializer.new();
    }
    static _create_1() {
      return new XMLSerializer();
    }
    [S$3.$serializeToString](...args) {
      return this.serializeToString.apply(this, args);
    }
  };
  dart.addRtiResources(html$.XmlSerializer, ["html|XmlSerializer"]);
  dart.setMethodSignature(html$.XmlSerializer, () => dart.global.Object.setPrototypeOf({[S$3.$serializeToString]: T$6.NodeToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$.XmlSerializer))));
  dart.setStaticMethodSignature(html$.XmlSerializer, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$.XmlSerializer, I[167]);
  dart.registerExtension("XMLSerializer", html$.XmlSerializer);
  html$.XsltProcessor = class XsltProcessor extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$.XsltProcessor.__();
    }
    static new() {
      return html$.XsltProcessor._create_1();
    }
    static ['_#new#tearOff']() {
      return html$.XsltProcessor.new();
    }
    static _create_1() {
      return new XSLTProcessor();
    }
    static get supported() {
      return !!window.XSLTProcessor;
    }
    [S$3.$clearParameters](...args) {
      return this.clearParameters.apply(this, args);
    }
    [S$3.$getParameter](...args) {
      return this.getParameter.apply(this, args);
    }
    [S$3.$importStylesheet](...args) {
      return this.importStylesheet.apply(this, args);
    }
    [S$3.$removeParameter](...args) {
      return this.removeParameter.apply(this, args);
    }
    [S$1.$reset](...args) {
      return this.reset.apply(this, args);
    }
    [S$3.$setParameter](...args) {
      return this.setParameter.apply(this, args);
    }
    [S$3.$transformToDocument](...args) {
      return this.transformToDocument.apply(this, args);
    }
    [S$3.$transformToFragment](...args) {
      return this.transformToFragment.apply(this, args);
    }
  };
  dart.addRtiResources(html$.XsltProcessor, ["html|XsltProcessor"]);
  dart.setMethodSignature(html$.XsltProcessor, () => dart.global.Object.setPrototypeOf({
    [S$3.$clearParameters]: T$.VoidTovoid(),
    [S$3.$getParameter]: T$3.StringNAndStringToStringN(),
    [S$3.$importStylesheet]: T.NodeTovoid(),
    [S$3.$removeParameter]: T$3.StringNAndStringTovoid(),
    [S$1.$reset]: T$.VoidTovoid(),
    [S$3.$setParameter]: T$6.StringNAndStringAndStringTovoid(),
    [S$3.$transformToDocument]: T$6.NodeToDocumentN(),
    [S$3.$transformToFragment]: T$6.NodeAndDocumentToDocumentFragmentN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.XsltProcessor))));
  dart.setStaticMethodSignature(html$.XsltProcessor, () => ['__', 'new', '_create_1']);
  dart.setStaticGetterSignature(html$.XsltProcessor, () => ['supported']);
  dart.setLibraryUri(html$.XsltProcessor, I[167]);
  dart.registerExtension("XSLTProcessor", html$.XsltProcessor);
  html$._Attr = class _Attr extends html$.Node {
    static ['_#_#tearOff']() {
      return html$._Attr.__();
    }
    get [S._localName]() {
      return this.localName;
    }
    get [$name]() {
      return this.name;
    }
    get [S._namespaceUri]() {
      return this.namespaceURI;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  dart.addRtiResources(html$._Attr, ["html|_Attr"]);
  dart.setStaticMethodSignature(html$._Attr, () => ['__']);
  dart.setGetterSignature(html$._Attr, () => dart.global.Object.setPrototypeOf({
    [S._localName]: T$.StringN(),
    [$name]: T$.StringN(),
    [S._namespaceUri]: T$.StringN(),
    [S.$value]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._Attr))));
  dart.setSetterSignature(html$._Attr, () => dart.global.Object.setPrototypeOf({[S.$value]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$._Attr))));
  dart.setLibraryUri(html$._Attr, I[167]);
  dart.registerExtension("Attr", html$._Attr);
  html$._Bluetooth = class _Bluetooth extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._Bluetooth.__();
    }
  };
  dart.addRtiResources(html$._Bluetooth, ["html|_Bluetooth"]);
  dart.setStaticMethodSignature(html$._Bluetooth, () => ['__']);
  dart.setLibraryUri(html$._Bluetooth, I[167]);
  dart.registerExtension("Bluetooth", html$._Bluetooth);
  html$._BluetoothCharacteristicProperties = class _BluetoothCharacteristicProperties extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._BluetoothCharacteristicProperties.__();
    }
  };
  dart.addRtiResources(html$._BluetoothCharacteristicProperties, ["html|_BluetoothCharacteristicProperties"]);
  dart.setStaticMethodSignature(html$._BluetoothCharacteristicProperties, () => ['__']);
  dart.setLibraryUri(html$._BluetoothCharacteristicProperties, I[167]);
  dart.registerExtension("BluetoothCharacteristicProperties", html$._BluetoothCharacteristicProperties);
  html$._BluetoothDevice = class _BluetoothDevice extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$._BluetoothDevice.__();
    }
  };
  dart.addRtiResources(html$._BluetoothDevice, ["html|_BluetoothDevice"]);
  dart.setStaticMethodSignature(html$._BluetoothDevice, () => ['__']);
  dart.setLibraryUri(html$._BluetoothDevice, I[167]);
  dart.registerExtension("BluetoothDevice", html$._BluetoothDevice);
  html$._BluetoothRemoteGATTCharacteristic = class _BluetoothRemoteGATTCharacteristic extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$._BluetoothRemoteGATTCharacteristic.__();
    }
  };
  dart.addRtiResources(html$._BluetoothRemoteGATTCharacteristic, ["html|_BluetoothRemoteGATTCharacteristic"]);
  dart.setStaticMethodSignature(html$._BluetoothRemoteGATTCharacteristic, () => ['__']);
  dart.setLibraryUri(html$._BluetoothRemoteGATTCharacteristic, I[167]);
  dart.registerExtension("BluetoothRemoteGATTCharacteristic", html$._BluetoothRemoteGATTCharacteristic);
  html$._BluetoothRemoteGATTServer = class _BluetoothRemoteGATTServer extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._BluetoothRemoteGATTServer.__();
    }
  };
  dart.addRtiResources(html$._BluetoothRemoteGATTServer, ["html|_BluetoothRemoteGATTServer"]);
  dart.setStaticMethodSignature(html$._BluetoothRemoteGATTServer, () => ['__']);
  dart.setLibraryUri(html$._BluetoothRemoteGATTServer, I[167]);
  dart.registerExtension("BluetoothRemoteGATTServer", html$._BluetoothRemoteGATTServer);
  html$._BluetoothRemoteGATTService = class _BluetoothRemoteGATTService extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._BluetoothRemoteGATTService.__();
    }
  };
  dart.addRtiResources(html$._BluetoothRemoteGATTService, ["html|_BluetoothRemoteGATTService"]);
  dart.setStaticMethodSignature(html$._BluetoothRemoteGATTService, () => ['__']);
  dart.setLibraryUri(html$._BluetoothRemoteGATTService, I[167]);
  dart.registerExtension("BluetoothRemoteGATTService", html$._BluetoothRemoteGATTService);
  html$._BluetoothUUID = class _BluetoothUUID extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._BluetoothUUID.__();
    }
  };
  dart.addRtiResources(html$._BluetoothUUID, ["html|_BluetoothUUID"]);
  dart.setStaticMethodSignature(html$._BluetoothUUID, () => ['__']);
  dart.setLibraryUri(html$._BluetoothUUID, I[167]);
  dart.registerExtension("BluetoothUUID", html$._BluetoothUUID);
  html$._BudgetService = class _BudgetService extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._BudgetService.__();
    }
    [S$3.$getBudget]() {
      return js_util.promiseToFuture(T$6.BudgetState(), this.getBudget());
    }
    [S$3.$getCost](operation) {
      if (operation == null) dart.nullFailed(I[166], 34401, 33, "operation");
      return js_util.promiseToFuture(T$.double(), this.getCost(operation));
    }
    [S$3.$reserve](operation) {
      if (operation == null) dart.nullFailed(I[166], 34404, 31, "operation");
      return js_util.promiseToFuture(T$.bool(), this.reserve(operation));
    }
  };
  dart.addRtiResources(html$._BudgetService, ["html|_BudgetService"]);
  dart.setMethodSignature(html$._BudgetService, () => dart.global.Object.setPrototypeOf({
    [S$3.$getBudget]: T$6.VoidToFutureOfBudgetState(),
    [S$3.$getCost]: T$6.StringToFutureOfdouble(),
    [S$3.$reserve]: T$2.StringToFutureOfbool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._BudgetService))));
  dart.setStaticMethodSignature(html$._BudgetService, () => ['__']);
  dart.setLibraryUri(html$._BudgetService, I[167]);
  dart.registerExtension("BudgetService", html$._BudgetService);
  html$._Cache = class _Cache extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._Cache.__();
    }
  };
  dart.addRtiResources(html$._Cache, ["html|_Cache"]);
  dart.setStaticMethodSignature(html$._Cache, () => ['__']);
  dart.setLibraryUri(html$._Cache, I[167]);
  dart.registerExtension("Cache", html$._Cache);
  html$._CanvasPath = class _CanvasPath extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._CanvasPath.__();
    }
  };
  dart.addRtiResources(html$._CanvasPath, ["html|_CanvasPath"]);
  dart.setStaticMethodSignature(html$._CanvasPath, () => ['__']);
  dart.setLibraryUri(html$._CanvasPath, I[167]);
  html$._Clipboard = class _Clipboard extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$._Clipboard.__();
    }
    [S$3.$read]() {
      return js_util.promiseToFuture(T.DataTransfer(), this.read());
    }
    [S$3.$readText]() {
      return js_util.promiseToFuture(T$.String(), this.readText());
    }
    [S$1.$write](data) {
      if (data == null) dart.nullFailed(I[166], 34445, 29, "data");
      return js_util.promiseToFuture(T$.dynamic(), this.write(data));
    }
    [S$3.$writeText](data) {
      if (data == null) dart.nullFailed(I[166], 34448, 27, "data");
      return js_util.promiseToFuture(T$.dynamic(), this.writeText(data));
    }
  };
  dart.addRtiResources(html$._Clipboard, ["html|_Clipboard"]);
  dart.setMethodSignature(html$._Clipboard, () => dart.global.Object.setPrototypeOf({
    [S$3.$read]: T$6.VoidToFutureOfDataTransfer(),
    [S$3.$readText]: T$2.VoidToFutureOfString(),
    [S$1.$write]: T$6.DataTransferToFuture(),
    [S$3.$writeText]: T$4.StringToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._Clipboard))));
  dart.setStaticMethodSignature(html$._Clipboard, () => ['__']);
  dart.setLibraryUri(html$._Clipboard, I[167]);
  dart.registerExtension("Clipboard", html$._Clipboard);
  const JavaScriptObject_ListBase$36$8 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$8.new = function() {
    G$.ListBaseOfCssRule().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$8).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$8.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$8, G$.ListBaseOfCssRule());
  const JavaScriptObject_ImmutableListMixin$36$8 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$8 {};
  (JavaScriptObject_ImmutableListMixin$36$8.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$8).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$8.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$8, G$.ImmutableListMixinOfCssRule());
  html$._CssRuleList = class _CssRuleList extends JavaScriptObject_ImmutableListMixin$36$8 {
    static ['_#_#tearOff']() {
      return html$._CssRuleList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 34466, 27, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 34472, 25, "index");
      T$6.CssRule()[_as](value);
      if (value == null) dart.nullFailed(I[166], 34472, 40, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 34478, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 34506, 25, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$._CssRuleList, ["html|_CssRuleList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$._CssRuleList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$6.intToCssRule(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T$6.intToCssRuleN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._CssRuleList))));
  dart.setStaticMethodSignature(html$._CssRuleList, () => ['__']);
  dart.setGetterSignature(html$._CssRuleList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$._CssRuleList))));
  dart.setSetterSignature(html$._CssRuleList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$._CssRuleList))));
  dart.setLibraryUri(html$._CssRuleList, I[167]);
  dart.registerExtension("CSSRuleList", html$._CssRuleList);
  html$._DOMFileSystemSync = class _DOMFileSystemSync extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._DOMFileSystemSync.__();
    }
  };
  dart.addRtiResources(html$._DOMFileSystemSync, ["html|_DOMFileSystemSync"]);
  dart.setStaticMethodSignature(html$._DOMFileSystemSync, () => ['__']);
  dart.setLibraryUri(html$._DOMFileSystemSync, I[167]);
  dart.registerExtension("DOMFileSystemSync", html$._DOMFileSystemSync);
  html$._EntrySync = class _EntrySync extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._EntrySync.__();
    }
  };
  dart.addRtiResources(html$._EntrySync, ["html|_EntrySync"]);
  dart.setStaticMethodSignature(html$._EntrySync, () => ['__']);
  dart.setLibraryUri(html$._EntrySync, I[167]);
  dart.registerExtension("EntrySync", html$._EntrySync);
  html$._DirectoryEntrySync = class _DirectoryEntrySync extends html$._EntrySync {
    static ['_#_#tearOff']() {
      return html$._DirectoryEntrySync.__();
    }
  };
  dart.addRtiResources(html$._DirectoryEntrySync, ["html|_DirectoryEntrySync"]);
  dart.setStaticMethodSignature(html$._DirectoryEntrySync, () => ['__']);
  dart.setLibraryUri(html$._DirectoryEntrySync, I[167]);
  dart.registerExtension("DirectoryEntrySync", html$._DirectoryEntrySync);
  html$._DirectoryReaderSync = class _DirectoryReaderSync extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._DirectoryReaderSync.__();
    }
  };
  dart.addRtiResources(html$._DirectoryReaderSync, ["html|_DirectoryReaderSync"]);
  dart.setStaticMethodSignature(html$._DirectoryReaderSync, () => ['__']);
  dart.setLibraryUri(html$._DirectoryReaderSync, I[167]);
  dart.registerExtension("DirectoryReaderSync", html$._DirectoryReaderSync);
  html$._DocumentType = class _DocumentType extends html$.Node {
    static ['_#_#tearOff']() {
      return html$._DocumentType.__();
    }
  };
  dart.addRtiResources(html$._DocumentType, ["html|_DocumentType", "html|ChildNode", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$._DocumentType, () => ['__']);
  dart.setLibraryUri(html$._DocumentType, I[167]);
  dart.registerExtension("DocumentType", html$._DocumentType);
  html$._DomRect = class _DomRect extends html$.DomRectReadOnly {
    [$toString]() {
      return "Rectangle (" + dart.str(this[$left]) + ", " + dart.str(this[$top]) + ") " + dart.str(this[$width]) + " x " + dart.str(this[$height]);
    }
    [$_equals](other) {
      if (other == null) return false;
      return T$3.RectangleOfnum()[_is](other) && this[$left] == other[$left] && this[$top] == other[$top] && this[$width] == other[$width] && this[$height] == other[$height];
    }
    get [$hashCode]() {
      return core.Object.hash(this[$left], this[$top], this[$width], this[$height]);
    }
    [$intersection](other) {
      T$3.RectangleOfnum()[_as](other);
      if (other == null) dart.nullFailed(I[166], 34590, 37, "other");
      let x0 = math.max(T$.num(), this[$left], other[$left]);
      let x1 = math.min(T$.num(), dart.notNull(this[$left]) + dart.notNull(this[$width]), dart.notNull(other[$left]) + dart.notNull(other[$width]));
      if (x0 <= x1) {
        let y0 = math.max(T$.num(), this[$top], other[$top]);
        let y1 = math.min(T$.num(), dart.notNull(this[$top]) + dart.notNull(this[$height]), dart.notNull(other[$top]) + dart.notNull(other[$height]));
        if (y0 <= y1) {
          return new (G.RectangleOfnum()).new(x0, y0, x1 - x0, y1 - y0);
        }
      }
      return null;
    }
    [$intersects](other) {
      if (other == null) dart.nullFailed(I[166], 34608, 34, "other");
      return dart.notNull(this[$left]) <= dart.notNull(other[$left]) + dart.notNull(other[$width]) && dart.notNull(other[$left]) <= dart.notNull(this[$left]) + dart.notNull(this[$width]) && dart.notNull(this[$top]) <= dart.notNull(other[$top]) + dart.notNull(other[$height]) && dart.notNull(other[$top]) <= dart.notNull(this[$top]) + dart.notNull(this[$height]);
    }
    [$boundingBox](other) {
      T$3.RectangleOfnum()[_as](other);
      if (other == null) dart.nullFailed(I[166], 34618, 35, "other");
      let right = math.max(T$.num(), dart.notNull(this[$left]) + dart.notNull(this[$width]), dart.notNull(other[$left]) + dart.notNull(other[$width]));
      let bottom = math.max(T$.num(), dart.notNull(this[$top]) + dart.notNull(this[$height]), dart.notNull(other[$top]) + dart.notNull(other[$height]));
      let left = math.min(T$.num(), this[$left], other[$left]);
      let top = math.min(T$.num(), this[$top], other[$top]);
      return new (G.RectangleOfnum()).new(left, top, right - left, bottom - top);
    }
    [$containsRectangle](another) {
      if (another == null) dart.nullFailed(I[166], 34631, 41, "another");
      return dart.notNull(this[$left]) <= dart.notNull(another[$left]) && dart.notNull(this[$left]) + dart.notNull(this[$width]) >= dart.notNull(another[$left]) + dart.notNull(another[$width]) && dart.notNull(this[$top]) <= dart.notNull(another[$top]) && dart.notNull(this[$top]) + dart.notNull(this[$height]) >= dart.notNull(another[$top]) + dart.notNull(another[$height]);
    }
    [$containsPoint](another) {
      if (another == null) dart.nullFailed(I[166], 34641, 33, "another");
      return dart.notNull(another.x) >= dart.notNull(this[$left]) && dart.notNull(another.x) <= dart.notNull(this[$left]) + dart.notNull(this[$width]) && dart.notNull(another.y) >= dart.notNull(this[$top]) && dart.notNull(another.y) <= dart.notNull(this[$top]) + dart.notNull(this[$height]);
    }
    get [$topLeft]() {
      return new (G.PointOfnum()).new(this[$left], this[$top]);
    }
    get [$topRight]() {
      return new (G.PointOfnum()).new(dart.notNull(this[$left]) + dart.notNull(this[$width]), this[$top]);
    }
    get [$bottomRight]() {
      return new (G.PointOfnum()).new(dart.notNull(this[$left]) + dart.notNull(this[$width]), dart.notNull(this[$top]) + dart.notNull(this[$height]));
    }
    get [$bottomLeft]() {
      return new (G.PointOfnum()).new(this[$left], dart.notNull(this[$top]) + dart.notNull(this[$height]));
    }
    static ['_#_#tearOff']() {
      return html$._DomRect.__();
    }
    static new(x = null, y = null, width = null, height = null) {
      if (height != null) {
        return html$._DomRect._create_1(x, y, width, height);
      }
      if (width != null) {
        return html$._DomRect._create_2(x, y, width);
      }
      if (y != null) {
        return html$._DomRect._create_3(x, y);
      }
      if (x != null) {
        return html$._DomRect._create_4(x);
      }
      return html$._DomRect._create_5();
    }
    static ['_#new#tearOff'](x = null, y = null, width = null, height = null) {
      return html$._DomRect.new(x, y, width, height);
    }
    static _create_1(x, y, width, height) {
      return new DOMRect(x, y, width, height);
    }
    static _create_2(x, y, width) {
      return new DOMRect(x, y, width);
    }
    static _create_3(x, y) {
      return new DOMRect(x, y);
    }
    static _create_4(x) {
      return new DOMRect(x);
    }
    static _create_5() {
      return new DOMRect();
    }
    get [S$0._height$1]() {
      return this.height;
    }
    get [$height]() {
      return dart.nullCheck(this[S$0._height$1]);
    }
    set [$height](value) {
      this.height = value;
    }
    get [S$0._width$1]() {
      return this.width;
    }
    get [$width]() {
      return dart.nullCheck(this[S$0._width$1]);
    }
    set [$width](value) {
      this.width = value;
    }
    get [S$.$x]() {
      return this.x;
    }
    set [S$.$x](value) {
      this.x = value;
    }
    get [S$.$y]() {
      return this.y;
    }
    set [S$.$y](value) {
      this.y = value;
    }
  };
  dart.addRtiResources(html$._DomRect, ["html|_DomRect", "math|Rectangle", "math|_RectangleBase"]);
  dart.setStaticMethodSignature(html$._DomRect, () => ['__', 'new', '_create_1', '_create_2', '_create_3', '_create_4', '_create_5']);
  dart.setSetterSignature(html$._DomRect, () => dart.global.Object.setPrototypeOf({
    [$height]: T$.num(),
    [$width]: T$.num(),
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$._DomRect))));
  dart.setLibraryUri(html$._DomRect, I[167]);
  dart.registerExtension("ClientRect", html$._DomRect);
  dart.registerExtension("DOMRect", html$._DomRect);
  html$._FileEntrySync = class _FileEntrySync extends html$._EntrySync {
    static ['_#_#tearOff']() {
      return html$._FileEntrySync.__();
    }
  };
  dart.addRtiResources(html$._FileEntrySync, ["html|_FileEntrySync"]);
  dart.setStaticMethodSignature(html$._FileEntrySync, () => ['__']);
  dart.setLibraryUri(html$._FileEntrySync, I[167]);
  dart.registerExtension("FileEntrySync", html$._FileEntrySync);
  html$._FileReaderSync = class _FileReaderSync extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._FileReaderSync.__();
    }
    static new() {
      return html$._FileReaderSync._create_1();
    }
    static ['_#new#tearOff']() {
      return html$._FileReaderSync.new();
    }
    static _create_1() {
      return new FileReaderSync();
    }
  };
  dart.addRtiResources(html$._FileReaderSync, ["html|_FileReaderSync"]);
  dart.setStaticMethodSignature(html$._FileReaderSync, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$._FileReaderSync, I[167]);
  dart.registerExtension("FileReaderSync", html$._FileReaderSync);
  html$._FileWriterSync = class _FileWriterSync extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._FileWriterSync.__();
    }
  };
  dart.addRtiResources(html$._FileWriterSync, ["html|_FileWriterSync"]);
  dart.setStaticMethodSignature(html$._FileWriterSync, () => ['__']);
  dart.setLibraryUri(html$._FileWriterSync, I[167]);
  dart.registerExtension("FileWriterSync", html$._FileWriterSync);
  const JavaScriptObject_ListBase$36$9 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$9.new = function() {
    G$.ListBaseOfGamepadN().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$9).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$9.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$9, G$.ListBaseOfGamepadN());
  const JavaScriptObject_ImmutableListMixin$36$9 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$9 {};
  (JavaScriptObject_ImmutableListMixin$36$9.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$9).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$9.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$9, G$.ImmutableListMixinOfGamepadN());
  html$._GamepadList = class _GamepadList extends JavaScriptObject_ImmutableListMixin$36$9 {
    static ['_#_#tearOff']() {
      return html$._GamepadList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 34783, 28, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 34789, 25, "index");
      T$5.GamepadN()[_as](value);
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 34795, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 34823, 26, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$._GamepadList, ["html|_GamepadList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$._GamepadList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$6.intToGamepadN(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T$6.intNToGamepad()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._GamepadList))));
  dart.setStaticMethodSignature(html$._GamepadList, () => ['__']);
  dart.setGetterSignature(html$._GamepadList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$._GamepadList))));
  dart.setSetterSignature(html$._GamepadList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$._GamepadList))));
  dart.setLibraryUri(html$._GamepadList, I[167]);
  dart.registerExtension("GamepadList", html$._GamepadList);
  html$._HTMLAllCollection = class _HTMLAllCollection extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._HTMLAllCollection.__();
    }
    [S$1._item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$._HTMLAllCollection, ["html|_HTMLAllCollection"]);
  dart.setMethodSignature(html$._HTMLAllCollection, () => dart.global.Object.setPrototypeOf({[S$1._item]: T$6.intNToElement()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$._HTMLAllCollection))));
  dart.setStaticMethodSignature(html$._HTMLAllCollection, () => ['__']);
  dart.setLibraryUri(html$._HTMLAllCollection, I[167]);
  dart.registerExtension("HTMLAllCollection", html$._HTMLAllCollection);
  html$._HTMLDirectoryElement = class _HTMLDirectoryElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$._HTMLDirectoryElement.__();
    }
  };
  (html$._HTMLDirectoryElement.created = function() {
    dart.global.Object.getPrototypeOf(html$._HTMLDirectoryElement).created.call(this);
    ;
  }).prototype = html$._HTMLDirectoryElement.prototype;
  dart.addRtiResources(html$._HTMLDirectoryElement, ["html|_HTMLDirectoryElement"]);
  dart.setStaticMethodSignature(html$._HTMLDirectoryElement, () => ['__']);
  dart.setLibraryUri(html$._HTMLDirectoryElement, I[167]);
  dart.registerExtension("HTMLDirectoryElement", html$._HTMLDirectoryElement);
  html$._HTMLFontElement = class _HTMLFontElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$._HTMLFontElement.__();
    }
  };
  (html$._HTMLFontElement.created = function() {
    dart.global.Object.getPrototypeOf(html$._HTMLFontElement).created.call(this);
    ;
  }).prototype = html$._HTMLFontElement.prototype;
  dart.addRtiResources(html$._HTMLFontElement, ["html|_HTMLFontElement"]);
  dart.setStaticMethodSignature(html$._HTMLFontElement, () => ['__']);
  dart.setLibraryUri(html$._HTMLFontElement, I[167]);
  dart.registerExtension("HTMLFontElement", html$._HTMLFontElement);
  html$._HTMLFrameElement = class _HTMLFrameElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$._HTMLFrameElement.__();
    }
  };
  (html$._HTMLFrameElement.created = function() {
    dart.global.Object.getPrototypeOf(html$._HTMLFrameElement).created.call(this);
    ;
  }).prototype = html$._HTMLFrameElement.prototype;
  dart.addRtiResources(html$._HTMLFrameElement, ["html|_HTMLFrameElement"]);
  dart.setStaticMethodSignature(html$._HTMLFrameElement, () => ['__']);
  dart.setLibraryUri(html$._HTMLFrameElement, I[167]);
  dart.registerExtension("HTMLFrameElement", html$._HTMLFrameElement);
  html$._HTMLFrameSetElement = class _HTMLFrameSetElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$._HTMLFrameSetElement.__();
    }
  };
  (html$._HTMLFrameSetElement.created = function() {
    dart.global.Object.getPrototypeOf(html$._HTMLFrameSetElement).created.call(this);
    ;
  }).prototype = html$._HTMLFrameSetElement.prototype;
  dart.addRtiResources(html$._HTMLFrameSetElement, ["html|_HTMLFrameSetElement", "html|WindowEventHandlers", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$._HTMLFrameSetElement, () => ['__']);
  dart.setLibraryUri(html$._HTMLFrameSetElement, I[167]);
  dart.registerExtension("HTMLFrameSetElement", html$._HTMLFrameSetElement);
  html$._HTMLMarqueeElement = class _HTMLMarqueeElement extends html$.HtmlElement {
    static ['_#_#tearOff']() {
      return html$._HTMLMarqueeElement.__();
    }
  };
  (html$._HTMLMarqueeElement.created = function() {
    dart.global.Object.getPrototypeOf(html$._HTMLMarqueeElement).created.call(this);
    ;
  }).prototype = html$._HTMLMarqueeElement.prototype;
  dart.addRtiResources(html$._HTMLMarqueeElement, ["html|_HTMLMarqueeElement"]);
  dart.setStaticMethodSignature(html$._HTMLMarqueeElement, () => ['__']);
  dart.setLibraryUri(html$._HTMLMarqueeElement, I[167]);
  dart.registerExtension("HTMLMarqueeElement", html$._HTMLMarqueeElement);
  html$._Mojo = class _Mojo extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._Mojo.__();
    }
  };
  dart.addRtiResources(html$._Mojo, ["html|_Mojo"]);
  dart.setStaticMethodSignature(html$._Mojo, () => ['__']);
  dart.setLibraryUri(html$._Mojo, I[167]);
  dart.registerExtension("Mojo", html$._Mojo);
  html$._MojoHandle = class _MojoHandle extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._MojoHandle.__();
    }
  };
  dart.addRtiResources(html$._MojoHandle, ["html|_MojoHandle"]);
  dart.setStaticMethodSignature(html$._MojoHandle, () => ['__']);
  dart.setLibraryUri(html$._MojoHandle, I[167]);
  dart.registerExtension("MojoHandle", html$._MojoHandle);
  html$._MojoInterfaceInterceptor = class _MojoInterfaceInterceptor extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$._MojoInterfaceInterceptor.__();
    }
    static new(interfaceName, scope = null) {
      if (interfaceName == null) dart.nullFailed(I[166], 34974, 44, "interfaceName");
      if (scope != null) {
        return html$._MojoInterfaceInterceptor._create_1(interfaceName, scope);
      }
      return html$._MojoInterfaceInterceptor._create_2(interfaceName);
    }
    static ['_#new#tearOff'](interfaceName, scope = null) {
      if (interfaceName == null) dart.nullFailed(I[166], 34974, 44, "interfaceName");
      return html$._MojoInterfaceInterceptor.new(interfaceName, scope);
    }
    static _create_1(interfaceName, scope) {
      return new MojoInterfaceInterceptor(interfaceName, scope);
    }
    static _create_2(interfaceName) {
      return new MojoInterfaceInterceptor(interfaceName);
    }
  };
  dart.addRtiResources(html$._MojoInterfaceInterceptor, ["html|_MojoInterfaceInterceptor"]);
  dart.setStaticMethodSignature(html$._MojoInterfaceInterceptor, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$._MojoInterfaceInterceptor, I[167]);
  dart.registerExtension("MojoInterfaceInterceptor", html$._MojoInterfaceInterceptor);
  html$._MojoInterfaceRequestEvent = class _MojoInterfaceRequestEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$._MojoInterfaceRequestEvent.__();
    }
    static new(type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 35001, 45, "type");
      if (eventInitDict != null) {
        let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
        return html$._MojoInterfaceRequestEvent._create_1(type, eventInitDict_1);
      }
      return html$._MojoInterfaceRequestEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInitDict = null) {
      if (type == null) dart.nullFailed(I[166], 35001, 45, "type");
      return html$._MojoInterfaceRequestEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new MojoInterfaceRequestEvent(type, eventInitDict);
    }
    static _create_2(type) {
      return new MojoInterfaceRequestEvent(type);
    }
  };
  dart.addRtiResources(html$._MojoInterfaceRequestEvent, ["html|_MojoInterfaceRequestEvent"]);
  dart.setStaticMethodSignature(html$._MojoInterfaceRequestEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$._MojoInterfaceRequestEvent, I[167]);
  dart.registerExtension("MojoInterfaceRequestEvent", html$._MojoInterfaceRequestEvent);
  html$._MojoWatcher = class _MojoWatcher extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._MojoWatcher.__();
    }
  };
  dart.addRtiResources(html$._MojoWatcher, ["html|_MojoWatcher"]);
  dart.setStaticMethodSignature(html$._MojoWatcher, () => ['__']);
  dart.setLibraryUri(html$._MojoWatcher, I[167]);
  dart.registerExtension("MojoWatcher", html$._MojoWatcher);
  html$._NFC = class _NFC extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._NFC.__();
    }
  };
  dart.addRtiResources(html$._NFC, ["html|_NFC"]);
  dart.setStaticMethodSignature(html$._NFC, () => ['__']);
  dart.setLibraryUri(html$._NFC, I[167]);
  dart.registerExtension("NFC", html$._NFC);
  const JavaScriptObject_ListBase$36$10 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$10.new = function() {
    G$.ListBaseOfNode().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$10).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$10.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$10, G$.ListBaseOfNode());
  const JavaScriptObject_ImmutableListMixin$36$10 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$10 {};
  (JavaScriptObject_ImmutableListMixin$36$10.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$10).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$10.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$10, G$.ImmutableListMixinOfNode());
  html$._NamedNodeMap = class _NamedNodeMap extends JavaScriptObject_ImmutableListMixin$36$10 {
    static ['_#_#tearOff']() {
      return html$._NamedNodeMap.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 35055, 24, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 35061, 25, "index");
      T$5.Node()[_as](value);
      if (value == null) dart.nullFailed(I[166], 35061, 37, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 35067, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 35095, 22, "index");
      return this[$_get](index);
    }
    [S$3.$getNamedItem](...args) {
      return this.getNamedItem.apply(this, args);
    }
    [S$3.$getNamedItemNS](...args) {
      return this.getNamedItemNS.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
    [S$3.$removeNamedItem](...args) {
      return this.removeNamedItem.apply(this, args);
    }
    [S$3.$removeNamedItemNS](...args) {
      return this.removeNamedItemNS.apply(this, args);
    }
    [S$3.$setNamedItem](...args) {
      return this.setNamedItem.apply(this, args);
    }
    [S$3.$setNamedItemNS](...args) {
      return this.setNamedItemNS.apply(this, args);
    }
  };
  dart.addRtiResources(html$._NamedNodeMap, ["html|_NamedNodeMap", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$._NamedNodeMap, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$5.intToNode(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$3.$getNamedItem]: T$6.StringTo_AttrN(),
    [S$3.$getNamedItemNS]: T$6.StringNAndStringTo_AttrN(),
    [S$.$item]: T$6.intTo_AttrN(),
    [S$3.$removeNamedItem]: T$6.StringTo_Attr(),
    [S$3.$removeNamedItemNS]: T$6.StringNAndStringTo_Attr(),
    [S$3.$setNamedItem]: T$6._AttrTo_AttrN(),
    [S$3.$setNamedItemNS]: T$6._AttrTo_AttrN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._NamedNodeMap))));
  dart.setStaticMethodSignature(html$._NamedNodeMap, () => ['__']);
  dart.setGetterSignature(html$._NamedNodeMap, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$._NamedNodeMap))));
  dart.setSetterSignature(html$._NamedNodeMap, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$._NamedNodeMap))));
  dart.setLibraryUri(html$._NamedNodeMap, I[167]);
  dart.registerExtension("NamedNodeMap", html$._NamedNodeMap);
  dart.registerExtension("MozNamedAttrMap", html$._NamedNodeMap);
  html$._PagePopupController = class _PagePopupController extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._PagePopupController.__();
    }
  };
  dart.addRtiResources(html$._PagePopupController, ["html|_PagePopupController"]);
  dart.setStaticMethodSignature(html$._PagePopupController, () => ['__']);
  dart.setLibraryUri(html$._PagePopupController, I[167]);
  dart.registerExtension("PagePopupController", html$._PagePopupController);
  html$._Report = class _Report extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._Report.__();
    }
    get [S$1.$body]() {
      return this.body;
    }
    get [S.$type]() {
      return this.type;
    }
    get [S$.$url]() {
      return this.url;
    }
  };
  dart.addRtiResources(html$._Report, ["html|_Report"]);
  dart.setStaticMethodSignature(html$._Report, () => ['__']);
  dart.setGetterSignature(html$._Report, () => dart.global.Object.setPrototypeOf({
    [S$1.$body]: T$6.ReportBodyN(),
    [S.$type]: T$.StringN(),
    [S$.$url]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._Report))));
  dart.setLibraryUri(html$._Report, I[167]);
  dart.registerExtension("Report", html$._Report);
  html$._Request = class _Request extends html$.Body {
    static ['_#_#tearOff']() {
      return html$._Request.__();
    }
    static new(input, requestInitDict = null) {
      if (input == null) dart.nullFailed(I[166], 35160, 27, "input");
      if (requestInitDict != null) {
        let requestInitDict_1 = html_common.convertDartToNative_Dictionary(requestInitDict);
        return html$._Request._create_1(input, requestInitDict_1);
      }
      return html$._Request._create_2(input);
    }
    static ['_#new#tearOff'](input, requestInitDict = null) {
      if (input == null) dart.nullFailed(I[166], 35160, 27, "input");
      return html$._Request.new(input, requestInitDict);
    }
    static _create_1(input, requestInitDict) {
      return new Request(input, requestInitDict);
    }
    static _create_2(input) {
      return new Request(input);
    }
    get [S$3.$cache]() {
      return this.cache;
    }
    get [S$2.$credentials]() {
      return this.credentials;
    }
    get [S$2.$headers]() {
      return this.headers;
    }
    get [S$1.$integrity]() {
      return this.integrity;
    }
    get [S.$mode]() {
      return this.mode;
    }
    get [S$3.$redirect]() {
      return this.redirect;
    }
    get [S$1.$referrer]() {
      return this.referrer;
    }
    get [S$.$referrerPolicy]() {
      return this.referrerPolicy;
    }
    get [S$.$url]() {
      return this.url;
    }
    [S$.$clone](...args) {
      return this.clone.apply(this, args);
    }
  };
  dart.addRtiResources(html$._Request, ["html|_Request"]);
  dart.setMethodSignature(html$._Request, () => dart.global.Object.setPrototypeOf({[S$.$clone]: T$6.VoidTo_Request()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$._Request))));
  dart.setStaticMethodSignature(html$._Request, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(html$._Request, () => dart.global.Object.setPrototypeOf({
    [S$3.$cache]: T$.StringN(),
    [S$2.$credentials]: T$.StringN(),
    [S$2.$headers]: T$6.HeadersN(),
    [S$1.$integrity]: T$.StringN(),
    [S.$mode]: T$.StringN(),
    [S$3.$redirect]: T$.StringN(),
    [S$1.$referrer]: T$.StringN(),
    [S$.$referrerPolicy]: T$.StringN(),
    [S$.$url]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._Request))));
  dart.setLibraryUri(html$._Request, I[167]);
  dart.registerExtension("Request", html$._Request);
  html$._ResourceProgressEvent = class _ResourceProgressEvent extends html$.ProgressEvent {
    static ['_#_#tearOff']() {
      return html$._ResourceProgressEvent.__();
    }
  };
  dart.addRtiResources(html$._ResourceProgressEvent, ["html|_ResourceProgressEvent"]);
  dart.setStaticMethodSignature(html$._ResourceProgressEvent, () => ['__']);
  dart.setLibraryUri(html$._ResourceProgressEvent, I[167]);
  dart.registerExtension("ResourceProgressEvent", html$._ResourceProgressEvent);
  html$._Response = class _Response extends html$.Body {
    static ['_#_#tearOff']() {
      return html$._Response.__();
    }
    static new(body = null, init = null) {
      if (init != null) {
        let init_1 = html_common.convertDartToNative_Dictionary(init);
        return html$._Response._create_1(body, init_1);
      }
      if (body != null) {
        return html$._Response._create_2(body);
      }
      return html$._Response._create_3();
    }
    static ['_#new#tearOff'](body = null, init = null) {
      return html$._Response.new(body, init);
    }
    static _create_1(body, init) {
      return new Response(body, init);
    }
    static _create_2(body) {
      return new Response(body);
    }
    static _create_3() {
      return new Response();
    }
  };
  dart.addRtiResources(html$._Response, ["html|_Response"]);
  dart.setStaticMethodSignature(html$._Response, () => ['__', 'new', '_create_1', '_create_2', '_create_3']);
  dart.setLibraryUri(html$._Response, I[167]);
  dart.registerExtension("Response", html$._Response);
  const JavaScriptObject_ListBase$36$11 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$11.new = function() {
    G$.ListBaseOfSpeechRecognitionResult().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$11).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$11.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$11, G$.ListBaseOfSpeechRecognitionResult());
  const JavaScriptObject_ImmutableListMixin$36$11 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$11 {};
  (JavaScriptObject_ImmutableListMixin$36$11.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$11).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$11.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$11, G$.ImmutableListMixinOfSpeechRecognitionResult());
  html$._SpeechRecognitionResultList = class _SpeechRecognitionResultList extends JavaScriptObject_ImmutableListMixin$36$11 {
    static ['_#_#tearOff']() {
      return html$._SpeechRecognitionResultList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 35249, 43, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 35255, 25, "index");
      T$6.SpeechRecognitionResult()[_as](value);
      if (value == null) dart.nullFailed(I[166], 35255, 56, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 35261, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 35289, 41, "index");
      return this[$_get](index);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$._SpeechRecognitionResultList, ["html|_SpeechRecognitionResultList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$._SpeechRecognitionResultList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$6.intToSpeechRecognitionResult(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.$item]: T$6.intToSpeechRecognitionResult()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._SpeechRecognitionResultList))));
  dart.setStaticMethodSignature(html$._SpeechRecognitionResultList, () => ['__']);
  dart.setGetterSignature(html$._SpeechRecognitionResultList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$._SpeechRecognitionResultList))));
  dart.setSetterSignature(html$._SpeechRecognitionResultList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$._SpeechRecognitionResultList))));
  dart.setLibraryUri(html$._SpeechRecognitionResultList, I[167]);
  dart.registerExtension("SpeechRecognitionResultList", html$._SpeechRecognitionResultList);
  const JavaScriptObject_ListBase$36$12 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$12.new = function() {
    G$.ListBaseOfStyleSheet().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$12).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$12.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$12, G$.ListBaseOfStyleSheet());
  const JavaScriptObject_ImmutableListMixin$36$12 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$12 {};
  (JavaScriptObject_ImmutableListMixin$36$12.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$12).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$12.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$12, G$.ImmutableListMixinOfStyleSheet());
  html$._StyleSheetList = class _StyleSheetList extends JavaScriptObject_ImmutableListMixin$36$12 {
    static ['_#_#tearOff']() {
      return html$._StyleSheetList.__();
    }
    get [$length]() {
      return this.length;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[166], 35309, 30, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this[index];
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[166], 35315, 25, "index");
      T$6.StyleSheet()[_as](value);
      if (value == null) dart.nullFailed(I[166], 35315, 43, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](value) {
      if (value == null) dart.nullFailed(I[166], 35321, 18, "value");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[166], 35349, 28, "index");
      return this[$_get](index);
    }
    [S$.__getter__](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$.$item](...args) {
      return this.item.apply(this, args);
    }
  };
  dart.addRtiResources(html$._StyleSheetList, ["html|_StyleSheetList", "core|List", "_js_helper|JavaScriptIndexingBehavior", "core|Iterable", "core|_ListIterable", "_interceptors|JSMutableIndexable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "_interceptors|JSIndexable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html$._StyleSheetList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$6.intToStyleSheet(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$.__getter__]: T$6.StringToCssStyleSheet(),
    [S$.$item]: T$6.intToStyleSheetN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._StyleSheetList))));
  dart.setStaticMethodSignature(html$._StyleSheetList, () => ['__']);
  dart.setGetterSignature(html$._StyleSheetList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$._StyleSheetList))));
  dart.setSetterSignature(html$._StyleSheetList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(html$._StyleSheetList))));
  dart.setLibraryUri(html$._StyleSheetList, I[167]);
  dart.registerExtension("StyleSheetList", html$._StyleSheetList);
  html$._SubtleCrypto = class _SubtleCrypto extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._SubtleCrypto.__();
    }
  };
  dart.addRtiResources(html$._SubtleCrypto, ["html|_SubtleCrypto"]);
  dart.setStaticMethodSignature(html$._SubtleCrypto, () => ['__']);
  dart.setLibraryUri(html$._SubtleCrypto, I[167]);
  dart.registerExtension("SubtleCrypto", html$._SubtleCrypto);
  html$._USB = class _USB extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return html$._USB.__();
    }
  };
  dart.addRtiResources(html$._USB, ["html|_USB"]);
  dart.setStaticMethodSignature(html$._USB, () => ['__']);
  dart.setLibraryUri(html$._USB, I[167]);
  dart.registerExtension("USB", html$._USB);
  html$._USBAlternateInterface = class _USBAlternateInterface extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBAlternateInterface.__();
    }
    static new(deviceInterface, alternateSetting) {
      if (deviceInterface == null) dart.nullFailed(I[166], 35390, 21, "deviceInterface");
      if (alternateSetting == null) dart.nullFailed(I[166], 35390, 42, "alternateSetting");
      return html$._USBAlternateInterface._create_1(deviceInterface, alternateSetting);
    }
    static ['_#new#tearOff'](deviceInterface, alternateSetting) {
      if (deviceInterface == null) dart.nullFailed(I[166], 35390, 21, "deviceInterface");
      if (alternateSetting == null) dart.nullFailed(I[166], 35390, 42, "alternateSetting");
      return html$._USBAlternateInterface.new(deviceInterface, alternateSetting);
    }
    static _create_1(deviceInterface, alternateSetting) {
      return new USBAlternateInterface(deviceInterface, alternateSetting);
    }
  };
  dart.addRtiResources(html$._USBAlternateInterface, ["html|_USBAlternateInterface"]);
  dart.setStaticMethodSignature(html$._USBAlternateInterface, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$._USBAlternateInterface, I[167]);
  dart.registerExtension("USBAlternateInterface", html$._USBAlternateInterface);
  html$._USBConfiguration = class _USBConfiguration extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBConfiguration.__();
    }
    static new(device, configurationValue) {
      if (device == null) dart.nullFailed(I[166], 35408, 40, "device");
      if (configurationValue == null) dart.nullFailed(I[166], 35408, 52, "configurationValue");
      return html$._USBConfiguration._create_1(device, configurationValue);
    }
    static ['_#new#tearOff'](device, configurationValue) {
      if (device == null) dart.nullFailed(I[166], 35408, 40, "device");
      if (configurationValue == null) dart.nullFailed(I[166], 35408, 52, "configurationValue");
      return html$._USBConfiguration.new(device, configurationValue);
    }
    static _create_1(device, configurationValue) {
      return new USBConfiguration(device, configurationValue);
    }
  };
  dart.addRtiResources(html$._USBConfiguration, ["html|_USBConfiguration"]);
  dart.setStaticMethodSignature(html$._USBConfiguration, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$._USBConfiguration, I[167]);
  dart.registerExtension("USBConfiguration", html$._USBConfiguration);
  html$._USBConnectionEvent = class _USBConnectionEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return html$._USBConnectionEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 35428, 38, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 35428, 48, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return html$._USBConnectionEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[166], 35428, 38, "type");
      if (eventInitDict == null) dart.nullFailed(I[166], 35428, 48, "eventInitDict");
      return html$._USBConnectionEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new USBConnectionEvent(type, eventInitDict);
    }
  };
  dart.addRtiResources(html$._USBConnectionEvent, ["html|_USBConnectionEvent"]);
  dart.setStaticMethodSignature(html$._USBConnectionEvent, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$._USBConnectionEvent, I[167]);
  dart.registerExtension("USBConnectionEvent", html$._USBConnectionEvent);
  html$._USBDevice = class _USBDevice extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBDevice.__();
    }
  };
  dart.addRtiResources(html$._USBDevice, ["html|_USBDevice"]);
  dart.setStaticMethodSignature(html$._USBDevice, () => ['__']);
  dart.setLibraryUri(html$._USBDevice, I[167]);
  dart.registerExtension("USBDevice", html$._USBDevice);
  html$._USBEndpoint = class _USBEndpoint extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBEndpoint.__();
    }
    static new(alternate, endpointNumber, direction) {
      if (alternate == null) dart.nullFailed(I[166], 35461, 30, "alternate");
      if (endpointNumber == null) dart.nullFailed(I[166], 35461, 45, "endpointNumber");
      if (direction == null) dart.nullFailed(I[166], 35461, 68, "direction");
      return html$._USBEndpoint._create_1(alternate, endpointNumber, direction);
    }
    static ['_#new#tearOff'](alternate, endpointNumber, direction) {
      if (alternate == null) dart.nullFailed(I[166], 35461, 30, "alternate");
      if (endpointNumber == null) dart.nullFailed(I[166], 35461, 45, "endpointNumber");
      if (direction == null) dart.nullFailed(I[166], 35461, 68, "direction");
      return html$._USBEndpoint.new(alternate, endpointNumber, direction);
    }
    static _create_1(alternate, endpointNumber, direction) {
      return new USBEndpoint(alternate, endpointNumber, direction);
    }
  };
  dart.addRtiResources(html$._USBEndpoint, ["html|_USBEndpoint"]);
  dart.setStaticMethodSignature(html$._USBEndpoint, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$._USBEndpoint, I[167]);
  dart.registerExtension("USBEndpoint", html$._USBEndpoint);
  html$._USBInTransferResult = class _USBInTransferResult extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBInTransferResult.__();
    }
    static new(status, data = null) {
      if (status == null) dart.nullFailed(I[166], 35482, 39, "status");
      if (data != null) {
        return html$._USBInTransferResult._create_1(status, data);
      }
      return html$._USBInTransferResult._create_2(status);
    }
    static ['_#new#tearOff'](status, data = null) {
      if (status == null) dart.nullFailed(I[166], 35482, 39, "status");
      return html$._USBInTransferResult.new(status, data);
    }
    static _create_1(status, data) {
      return new USBInTransferResult(status, data);
    }
    static _create_2(status) {
      return new USBInTransferResult(status);
    }
  };
  dart.addRtiResources(html$._USBInTransferResult, ["html|_USBInTransferResult"]);
  dart.setStaticMethodSignature(html$._USBInTransferResult, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$._USBInTransferResult, I[167]);
  dart.registerExtension("USBInTransferResult", html$._USBInTransferResult);
  html$._USBInterface = class _USBInterface extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBInterface.__();
    }
    static new(configuration, interfaceNumber) {
      if (configuration == null) dart.nullFailed(I[166], 35504, 43, "configuration");
      if (interfaceNumber == null) dart.nullFailed(I[166], 35504, 62, "interfaceNumber");
      return html$._USBInterface._create_1(configuration, interfaceNumber);
    }
    static ['_#new#tearOff'](configuration, interfaceNumber) {
      if (configuration == null) dart.nullFailed(I[166], 35504, 43, "configuration");
      if (interfaceNumber == null) dart.nullFailed(I[166], 35504, 62, "interfaceNumber");
      return html$._USBInterface.new(configuration, interfaceNumber);
    }
    static _create_1(configuration, interfaceNumber) {
      return new USBInterface(configuration, interfaceNumber);
    }
  };
  dart.addRtiResources(html$._USBInterface, ["html|_USBInterface"]);
  dart.setStaticMethodSignature(html$._USBInterface, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$._USBInterface, I[167]);
  dart.registerExtension("USBInterface", html$._USBInterface);
  html$._USBIsochronousInTransferPacket = class _USBIsochronousInTransferPacket extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBIsochronousInTransferPacket.__();
    }
    static new(status, data = null) {
      if (status == null) dart.nullFailed(I[166], 35521, 50, "status");
      if (data != null) {
        return html$._USBIsochronousInTransferPacket._create_1(status, data);
      }
      return html$._USBIsochronousInTransferPacket._create_2(status);
    }
    static ['_#new#tearOff'](status, data = null) {
      if (status == null) dart.nullFailed(I[166], 35521, 50, "status");
      return html$._USBIsochronousInTransferPacket.new(status, data);
    }
    static _create_1(status, data) {
      return new USBIsochronousInTransferPacket(status, data);
    }
    static _create_2(status) {
      return new USBIsochronousInTransferPacket(status);
    }
  };
  dart.addRtiResources(html$._USBIsochronousInTransferPacket, ["html|_USBIsochronousInTransferPacket"]);
  dart.setStaticMethodSignature(html$._USBIsochronousInTransferPacket, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$._USBIsochronousInTransferPacket, I[167]);
  dart.registerExtension("USBIsochronousInTransferPacket", html$._USBIsochronousInTransferPacket);
  html$._USBIsochronousInTransferResult = class _USBIsochronousInTransferResult extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBIsochronousInTransferResult.__();
    }
    static new(packets, data = null) {
      if (packets == null) dart.nullFailed(I[166], 35549, 45, "packets");
      if (data != null) {
        return html$._USBIsochronousInTransferResult._create_1(packets, data);
      }
      return html$._USBIsochronousInTransferResult._create_2(packets);
    }
    static ['_#new#tearOff'](packets, data = null) {
      if (packets == null) dart.nullFailed(I[166], 35549, 45, "packets");
      return html$._USBIsochronousInTransferResult.new(packets, data);
    }
    static _create_1(packets, data) {
      return new USBIsochronousInTransferResult(packets, data);
    }
    static _create_2(packets) {
      return new USBIsochronousInTransferResult(packets);
    }
  };
  dart.addRtiResources(html$._USBIsochronousInTransferResult, ["html|_USBIsochronousInTransferResult"]);
  dart.setStaticMethodSignature(html$._USBIsochronousInTransferResult, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$._USBIsochronousInTransferResult, I[167]);
  dart.registerExtension("USBIsochronousInTransferResult", html$._USBIsochronousInTransferResult);
  html$._USBIsochronousOutTransferPacket = class _USBIsochronousOutTransferPacket extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBIsochronousOutTransferPacket.__();
    }
    static new(status, bytesWritten = null) {
      if (status == null) dart.nullFailed(I[166], 35577, 51, "status");
      if (bytesWritten != null) {
        return html$._USBIsochronousOutTransferPacket._create_1(status, bytesWritten);
      }
      return html$._USBIsochronousOutTransferPacket._create_2(status);
    }
    static ['_#new#tearOff'](status, bytesWritten = null) {
      if (status == null) dart.nullFailed(I[166], 35577, 51, "status");
      return html$._USBIsochronousOutTransferPacket.new(status, bytesWritten);
    }
    static _create_1(status, bytesWritten) {
      return new USBIsochronousOutTransferPacket(status, bytesWritten);
    }
    static _create_2(status) {
      return new USBIsochronousOutTransferPacket(status);
    }
  };
  dart.addRtiResources(html$._USBIsochronousOutTransferPacket, ["html|_USBIsochronousOutTransferPacket"]);
  dart.setStaticMethodSignature(html$._USBIsochronousOutTransferPacket, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$._USBIsochronousOutTransferPacket, I[167]);
  dart.registerExtension("USBIsochronousOutTransferPacket", html$._USBIsochronousOutTransferPacket);
  html$._USBIsochronousOutTransferResult = class _USBIsochronousOutTransferResult extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBIsochronousOutTransferResult.__();
    }
    static new(packets) {
      if (packets == null) dart.nullFailed(I[166], 35605, 46, "packets");
      return html$._USBIsochronousOutTransferResult._create_1(packets);
    }
    static ['_#new#tearOff'](packets) {
      if (packets == null) dart.nullFailed(I[166], 35605, 46, "packets");
      return html$._USBIsochronousOutTransferResult.new(packets);
    }
    static _create_1(packets) {
      return new USBIsochronousOutTransferResult(packets);
    }
  };
  dart.addRtiResources(html$._USBIsochronousOutTransferResult, ["html|_USBIsochronousOutTransferResult"]);
  dart.setStaticMethodSignature(html$._USBIsochronousOutTransferResult, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(html$._USBIsochronousOutTransferResult, I[167]);
  dart.registerExtension("USBIsochronousOutTransferResult", html$._USBIsochronousOutTransferResult);
  html$._USBOutTransferResult = class _USBOutTransferResult extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._USBOutTransferResult.__();
    }
    static new(status, bytesWritten = null) {
      if (status == null) dart.nullFailed(I[166], 35624, 40, "status");
      if (bytesWritten != null) {
        return html$._USBOutTransferResult._create_1(status, bytesWritten);
      }
      return html$._USBOutTransferResult._create_2(status);
    }
    static ['_#new#tearOff'](status, bytesWritten = null) {
      if (status == null) dart.nullFailed(I[166], 35624, 40, "status");
      return html$._USBOutTransferResult.new(status, bytesWritten);
    }
    static _create_1(status, bytesWritten) {
      return new USBOutTransferResult(status, bytesWritten);
    }
    static _create_2(status) {
      return new USBOutTransferResult(status);
    }
  };
  dart.addRtiResources(html$._USBOutTransferResult, ["html|_USBOutTransferResult"]);
  dart.setStaticMethodSignature(html$._USBOutTransferResult, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(html$._USBOutTransferResult, I[167]);
  dart.registerExtension("USBOutTransferResult", html$._USBOutTransferResult);
  html$._WindowTimers = class _WindowTimers extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._WindowTimers.__();
    }
  };
  dart.addRtiResources(html$._WindowTimers, ["html|_WindowTimers"]);
  dart.setStaticMethodSignature(html$._WindowTimers, () => ['__']);
  dart.setLibraryUri(html$._WindowTimers, I[167]);
  html$._WorkerLocation = class _WorkerLocation extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._WorkerLocation.__();
    }
  };
  dart.addRtiResources(html$._WorkerLocation, ["html|_WorkerLocation", "html|UrlUtilsReadOnly", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$._WorkerLocation, () => ['__']);
  dart.setLibraryUri(html$._WorkerLocation, I[167]);
  dart.registerExtension("WorkerLocation", html$._WorkerLocation);
  html$._WorkerNavigator = class _WorkerNavigator extends html$.NavigatorConcurrentHardware {
    static ['_#_#tearOff']() {
      return html$._WorkerNavigator.__();
    }
  };
  dart.addRtiResources(html$._WorkerNavigator, ["html|_WorkerNavigator", "html|NavigatorID", "html|NavigatorOnLine", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(html$._WorkerNavigator, () => ['__']);
  dart.setLibraryUri(html$._WorkerNavigator, I[167]);
  dart.registerExtension("WorkerNavigator", html$._WorkerNavigator);
  html$._Worklet = class _Worklet extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return html$._Worklet.__();
    }
  };
  dart.addRtiResources(html$._Worklet, ["html|_Worklet"]);
  dart.setStaticMethodSignature(html$._Worklet, () => ['__']);
  dart.setLibraryUri(html$._Worklet, I[167]);
  dart.registerExtension("Worklet", html$._Worklet);
  html$._AttributeMap = class _AttributeMap extends G$.MapBaseOfString$String() {
    addAll(other) {
      T$2.MapOfString$String()[_as](other);
      if (other == null) dart.nullFailed(I[166], 35712, 35, "other");
      other[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 35713, 20, "k");
        if (v == null) dart.nullFailed(I[166], 35713, 23, "v");
        this[$_set](k, v);
      }, T$2.StringAndStringTovoid()));
    }
    cast(K, V) {
      return core.Map.castFrom(T$.String(), T$.String(), K, V, this);
    }
    containsValue(value) {
      for (let v of this.values) {
        if (dart.equals(value, v)) {
          return true;
        }
      }
      return false;
    }
    putIfAbsent(key, ifAbsent) {
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 35728, 29, "key");
      T$.VoidToString()[_as](ifAbsent);
      if (ifAbsent == null) dart.nullFailed(I[166], 35728, 41, "ifAbsent");
      if (!dart.test(this[$containsKey](key))) {
        this[$_set](key, ifAbsent());
      }
      return dart.nullCast(this[$_get](key), T$.String());
    }
    clear() {
      for (let key of this.keys) {
        this[$remove](key);
      }
    }
    forEach(f) {
      if (f == null) dart.nullFailed(I[166], 35741, 21, "f");
      for (let key of this.keys) {
        let value = this[$_get](key);
        f(key, dart.nullCast(value, T$.String()));
      }
    }
    get keys() {
      let attributes = dart.nullCheck(this[S$1._element][S._attributes$1]);
      let keys = G.JSArrayOfString().of([]);
      for (let i = 0, len = attributes[$length]; i < dart.notNull(len); i = i + 1) {
        let attr = T$6._Attr()[_as](attributes[$_get](i));
        if (dart.test(this[S$3._matches](attr))) {
          keys[$add](dart.nullCheck(attr.name));
        }
      }
      return keys;
    }
    get values() {
      let attributes = dart.nullCheck(this[S$1._element][S._attributes$1]);
      let values = G.JSArrayOfString().of([]);
      for (let i = 0, len = attributes[$length]; i < dart.notNull(len); i = i + 1) {
        let attr = T$6._Attr()[_as](attributes[$_get](i));
        if (dart.test(this[S$3._matches](attr))) {
          values[$add](dart.nullCheck(attr.value));
        }
      }
      return values;
    }
    get isEmpty() {
      return this[$length] === 0;
    }
    get isNotEmpty() {
      return !dart.test(this.isEmpty);
    }
  };
  (html$._AttributeMap.new = function(_element) {
    if (_element == null) dart.nullFailed(I[166], 35710, 22, "_element");
    this[S$1._element] = _element;
    this.$ti = this.$ti || T$6._AttributeMap();
    dart.global.Object.getPrototypeOf(html$._AttributeMap).new.call(this);
    ;
  }).prototype = html$._AttributeMap.prototype;
  dart.addRtiResources(html$._AttributeMap, ["html|_AttributeMap"]);
  dart.setMethodSignature(html$._AttributeMap, () => dart.global.Object.setPrototypeOf({
    clear: T$.VoidTovoid(),
    [$clear]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._AttributeMap))));
  dart.setGetterSignature(html$._AttributeMap, () => dart.global.Object.setPrototypeOf({
    keys: T$0.IterableOfString(),
    [$keys]: T$0.IterableOfString()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._AttributeMap))));
  dart.setLibraryUri(html$._AttributeMap, I[167]);
  dart.setFieldSignature(html$._AttributeMap, () => dart.global.Object.setPrototypeOf({[S$1._element]: {type: T$3.Element(), isConst: false, isFinal: true, libraryUri: I[167]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._AttributeMap))));
  dart.defineExtensionMethods(html$._AttributeMap, [
    'addAll',
    'cast',
    'containsValue',
    'putIfAbsent',
    'clear',
    'forEach'
  ]);
  dart.defineExtensionAccessors(html$._AttributeMap, ['keys', 'values', 'isEmpty', 'isNotEmpty']);
  html$._ElementAttributeMap = class _ElementAttributeMap extends html$._AttributeMap {
    static ['_#new#tearOff'](element) {
      if (element == null) dart.nullFailed(I[166], 35796, 32, "element");
      return new html$._ElementAttributeMap.new(element);
    }
    containsKey(key) {
      return typeof key == 'string' && dart.test(this[S$1._element][S._hasAttribute](key));
    }
    _get(key) {
      return this[S$1._element][S.$getAttribute](T$.String()[_as](key));
    }
    _set(key, value$) {
      let value = value$;
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 35806, 28, "key");
      T$.String()[_as](value);
      if (value == null) dart.nullFailed(I[166], 35806, 40, "value");
      this[S$1._element][S.$setAttribute](key, value);
      return value$;
    }
    remove(key) {
      return typeof key == 'string' ? html$._ElementAttributeMap._remove(this[S$1._element], key) : null;
    }
    get length() {
      return this.keys[$length];
    }
    [S$3._matches](node) {
      if (node == null) dart.nullFailed(I[166], 35820, 23, "node");
      return node[S._namespaceUri] == null;
    }
    static _remove(element, key) {
      if (element == null) dart.nullFailed(I[166], 35825, 34, "element");
      if (key == null) dart.nullFailed(I[166], 35825, 50, "key");
      let value = element.getAttribute(key);
      element.removeAttribute(key);
      return value;
    }
  };
  (html$._ElementAttributeMap.new = function(element) {
    if (element == null) dart.nullFailed(I[166], 35796, 32, "element");
    this.$ti = this.$ti || T$6._ElementAttributeMap();
    dart.global.Object.getPrototypeOf(html$._ElementAttributeMap).new.call(this, element);
    ;
  }).prototype = html$._ElementAttributeMap.prototype;
  dart.addRtiResources(html$._ElementAttributeMap, ["html|_ElementAttributeMap"]);
  dart.setMethodSignature(html$._ElementAttributeMap, () => dart.global.Object.setPrototypeOf({
    _get: T$6.ObjectNToStringN(),
    [$_get]: T$6.ObjectNToStringN(),
    _set: T$.ObjectNAndObjectNTovoid(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    remove: T$6.ObjectNToStringN(),
    [$remove]: T$6.ObjectNToStringN(),
    [S$3._matches]: T$6._AttrTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._ElementAttributeMap))));
  dart.setStaticMethodSignature(html$._ElementAttributeMap, () => ['_remove']);
  dart.setLibraryUri(html$._ElementAttributeMap, I[167]);
  dart.defineExtensionMethods(html$._ElementAttributeMap, ['containsKey', '_get', '_set', 'remove']);
  dart.defineExtensionAccessors(html$._ElementAttributeMap, ['length']);
  html$._NamespacedAttributeMap = class _NamespacedAttributeMap extends html$._AttributeMap {
    static ['_#new#tearOff'](element, _namespace) {
      if (element == null) dart.nullFailed(I[166], 35844, 35, "element");
      return new html$._NamespacedAttributeMap.new(element, _namespace);
    }
    containsKey(key) {
      return typeof key == 'string' && dart.test(this[S$1._element][S._hasAttributeNS](this[S$3._namespace], key));
    }
    _get(key) {
      return this[S$1._element][S.$getAttributeNS](this[S$3._namespace], T$.String()[_as](key));
    }
    _set(key, value$) {
      let value = value$;
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 35854, 28, "key");
      T$.String()[_as](value);
      if (value == null) dart.nullFailed(I[166], 35854, 40, "value");
      this[S$1._element][S.$setAttributeNS](this[S$3._namespace], key, value);
      return value$;
    }
    remove(key) {
      return typeof key == 'string' ? html$._NamespacedAttributeMap._remove(this[S$3._namespace], this[S$1._element], key) : null;
    }
    get length() {
      return this.keys[$length];
    }
    [S$3._matches](node) {
      if (node == null) dart.nullFailed(I[166], 35869, 23, "node");
      return node[S._namespaceUri] == this[S$3._namespace];
    }
    static _remove(namespace, element, key) {
      if (element == null) dart.nullFailed(I[166], 35875, 53, "element");
      if (key == null) dart.nullFailed(I[166], 35875, 69, "key");
      let value = element.getAttributeNS(namespace, key);
      element.removeAttributeNS(namespace, key);
      return value;
    }
  };
  (html$._NamespacedAttributeMap.new = function(element, _namespace) {
    if (element == null) dart.nullFailed(I[166], 35844, 35, "element");
    this[S$3._namespace] = _namespace;
    this.$ti = this.$ti || T$6._NamespacedAttributeMap();
    dart.global.Object.getPrototypeOf(html$._NamespacedAttributeMap).new.call(this, element);
    ;
  }).prototype = html$._NamespacedAttributeMap.prototype;
  dart.addRtiResources(html$._NamespacedAttributeMap, ["html|_NamespacedAttributeMap"]);
  dart.setMethodSignature(html$._NamespacedAttributeMap, () => dart.global.Object.setPrototypeOf({
    _get: T$6.ObjectNToStringN(),
    [$_get]: T$6.ObjectNToStringN(),
    _set: T$.ObjectNAndObjectNTovoid(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    remove: T$6.ObjectNToStringN(),
    [$remove]: T$6.ObjectNToStringN(),
    [S$3._matches]: T$6._AttrTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._NamespacedAttributeMap))));
  dart.setStaticMethodSignature(html$._NamespacedAttributeMap, () => ['_remove']);
  dart.setLibraryUri(html$._NamespacedAttributeMap, I[167]);
  dart.setFieldSignature(html$._NamespacedAttributeMap, () => dart.global.Object.setPrototypeOf({[S$3._namespace]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._NamespacedAttributeMap))));
  dart.defineExtensionMethods(html$._NamespacedAttributeMap, ['containsKey', '_get', '_set', 'remove']);
  dart.defineExtensionAccessors(html$._NamespacedAttributeMap, ['length']);
  html$._DataAttributeMap = class _DataAttributeMap extends G$.MapBaseOfString$String() {
    static ['_#new#tearOff'](_attributes) {
      if (_attributes == null) dart.nullFailed(I[166], 35896, 26, "_attributes");
      return new html$._DataAttributeMap.new(_attributes);
    }
    addAll(other) {
      T$2.MapOfString$String()[_as](other);
      if (other == null) dart.nullFailed(I[166], 35900, 35, "other");
      other[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[166], 35901, 20, "k");
        if (v == null) dart.nullFailed(I[166], 35901, 23, "v");
        this._set(k, v);
      }, T$2.StringAndStringTovoid()));
    }
    cast(K, V) {
      return core.Map.castFrom(T$.String(), T$.String(), K, V, this);
    }
    containsValue(value) {
      return this.values[$any](dart.fn(v => {
        if (v == null) dart.nullFailed(I[166], 35908, 52, "v");
        return core.identical(v, value);
      }, T$.StringTobool()));
    }
    containsKey(key) {
      return this[S._attributes$1][$containsKey](this[S$3._attr](T$.String()[_as](key)));
    }
    _get(key) {
      return this[S._attributes$1][$_get](this[S$3._attr](T$.String()[_as](key)));
    }
    _set(key, value$) {
      let value = value$;
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 35915, 28, "key");
      T$.String()[_as](value);
      if (value == null) dart.nullFailed(I[166], 35915, 40, "value");
      this[S._attributes$1][$_set](this[S$3._attr](key), value);
      return value$;
    }
    putIfAbsent(key, ifAbsent) {
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[166], 35919, 29, "key");
      T$.VoidToString()[_as](ifAbsent);
      if (ifAbsent == null) dart.nullFailed(I[166], 35919, 41, "ifAbsent");
      return this[S._attributes$1][$putIfAbsent](this[S$3._attr](key), ifAbsent);
    }
    remove(key) {
      return this[S._attributes$1][$remove](this[S$3._attr](T$.String()[_as](key)));
    }
    clear() {
      for (let key of this.keys) {
        this.remove(key);
      }
    }
    forEach(f) {
      if (f == null) dart.nullFailed(I[166], 35931, 21, "f");
      this[S._attributes$1][$forEach](dart.fn((key, value) => {
        if (key == null) dart.nullFailed(I[166], 35932, 33, "key");
        if (value == null) dart.nullFailed(I[166], 35932, 45, "value");
        if (dart.test(this[S$3._matches](key))) {
          f(this[S$3._strip](key), value);
        }
      }, T$2.StringAndStringTovoid()));
    }
    get keys() {
      let keys = G.JSArrayOfString().of([]);
      this[S._attributes$1][$forEach](dart.fn((key, value) => {
        if (key == null) dart.nullFailed(I[166], 35941, 33, "key");
        if (value == null) dart.nullFailed(I[166], 35941, 45, "value");
        if (dart.test(this[S$3._matches](key))) {
          keys[$add](this[S$3._strip](key));
        }
      }, T$2.StringAndStringTovoid()));
      return keys;
    }
    get values() {
      let values = G.JSArrayOfString().of([]);
      this[S._attributes$1][$forEach](dart.fn((key, value) => {
        if (key == null) dart.nullFailed(I[166], 35951, 33, "key");
        if (value == null) dart.nullFailed(I[166], 35951, 45, "value");
        if (dart.test(this[S$3._matches](key))) {
          values[$add](value);
        }
      }, T$2.StringAndStringTovoid()));
      return values;
    }
    get length() {
      return this.keys[$length];
    }
    get isEmpty() {
      return this.length === 0;
    }
    get isNotEmpty() {
      return !dart.test(this.isEmpty);
    }
    [S$3._attr](key) {
      if (key == null) dart.nullFailed(I[166], 35967, 23, "key");
      return "data-" + dart.str(this[S$3._toHyphenedName](key));
    }
    [S$3._matches](key) {
      if (key == null) dart.nullFailed(I[166], 35968, 24, "key");
      return key[$startsWith]("data-");
    }
    [S$3._strip](key) {
      if (key == null) dart.nullFailed(I[166], 35969, 24, "key");
      return this[S$3._toCamelCase](key[$substring](5));
    }
    [S$3._toCamelCase](hyphenedName, opts) {
      if (hyphenedName == null) dart.nullFailed(I[166], 35976, 30, "hyphenedName");
      let startUppercase = opts && 'startUppercase' in opts ? opts.startUppercase : false;
      if (startUppercase == null) dart.nullFailed(I[166], 35976, 50, "startUppercase");
      let segments = hyphenedName[$split]("-");
      let start = dart.test(startUppercase) ? 0 : 1;
      for (let i = start; i < dart.notNull(segments[$length]); i = i + 1) {
        let segment = segments[$_get](i);
        if (segment.length > 0) {
          segments[$_set](i, segment[$_get](0)[$toUpperCase]() + segment[$substring](1));
        }
      }
      return segments[$join]("");
    }
    [S$3._toHyphenedName](word) {
      if (word == null) dart.nullFailed(I[166], 35990, 33, "word");
      let sb = new core.StringBuffer.new();
      for (let i = 0; i < word.length; i = i + 1) {
        let lower = word[$_get](i)[$toLowerCase]();
        if (word[$_get](i) !== lower && i > 0) sb.write("-");
        sb.write(lower);
      }
      return dart.toString(sb);
    }
  };
  (html$._DataAttributeMap.new = function(_attributes) {
    if (_attributes == null) dart.nullFailed(I[166], 35896, 26, "_attributes");
    this[S._attributes$1] = _attributes;
    this.$ti = this.$ti || T$6._DataAttributeMap();
    dart.global.Object.getPrototypeOf(html$._DataAttributeMap).new.call(this);
    ;
  }).prototype = html$._DataAttributeMap.prototype;
  dart.addRtiResources(html$._DataAttributeMap, ["html|_DataAttributeMap"]);
  dart.setMethodSignature(html$._DataAttributeMap, () => dart.global.Object.setPrototypeOf({
    _get: T$6.ObjectNToStringN(),
    [$_get]: T$6.ObjectNToStringN(),
    _set: T$.ObjectNAndObjectNTovoid(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    remove: T$6.ObjectNToStringN(),
    [$remove]: T$6.ObjectNToStringN(),
    clear: T$.VoidTovoid(),
    [$clear]: T$.VoidTovoid(),
    [S$3._attr]: T$.StringToString(),
    [S$3._matches]: T$.StringTobool(),
    [S$3._strip]: T$.StringToString(),
    [S$3._toCamelCase]: T$6.String__ToString(),
    [S$3._toHyphenedName]: T$.StringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._DataAttributeMap))));
  dart.setGetterSignature(html$._DataAttributeMap, () => dart.global.Object.setPrototypeOf({
    keys: T$0.IterableOfString(),
    [$keys]: T$0.IterableOfString()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._DataAttributeMap))));
  dart.setLibraryUri(html$._DataAttributeMap, I[167]);
  dart.setFieldSignature(html$._DataAttributeMap, () => dart.global.Object.setPrototypeOf({[S._attributes$1]: {type: T$2.MapOfString$String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._DataAttributeMap))));
  dart.defineExtensionMethods(html$._DataAttributeMap, [
    'addAll',
    'cast',
    'containsValue',
    'containsKey',
    '_get',
    '_set',
    'putIfAbsent',
    'remove',
    'clear',
    'forEach'
  ]);
  dart.defineExtensionAccessors(html$._DataAttributeMap, [
    'keys',
    'values',
    'length',
    'isEmpty',
    'isNotEmpty'
  ]);
  html$.CanvasImageSource = class CanvasImageSource extends core.Object {};
  (html$.CanvasImageSource.new = function() {
    ;
  }).prototype = html$.CanvasImageSource.prototype;
  dart.addRtiResources(html$.CanvasImageSource, ["html|CanvasImageSource"]);
  dart.setLibraryUri(html$.CanvasImageSource, I[167]);
  html$.WindowBase = class WindowBase extends core.Object {};
  (html$.WindowBase.new = function() {
    ;
  }).prototype = html$.WindowBase.prototype;
  dart.addRtiResources(html$.WindowBase, ["html|WindowBase", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setLibraryUri(html$.WindowBase, I[167]);
  html$.LocationBase = class LocationBase extends core.Object {};
  (html$.LocationBase.new = function() {
    ;
  }).prototype = html$.LocationBase.prototype;
  dart.addRtiResources(html$.LocationBase, ["html|LocationBase"]);
  dart.setLibraryUri(html$.LocationBase, I[167]);
  html$.HistoryBase = class HistoryBase extends core.Object {};
  (html$.HistoryBase.new = function() {
    ;
  }).prototype = html$.HistoryBase.prototype;
  dart.addRtiResources(html$.HistoryBase, ["html|HistoryBase"]);
  dart.setLibraryUri(html$.HistoryBase, I[167]);
  html$.CssClassSet = class CssClassSet extends core.Object {
    [Symbol.iterator]() {
      return new dart.JsIterator(this[$iterator]);
    }
  };
  (html$.CssClassSet.new = function() {
    ;
  }).prototype = html$.CssClassSet.prototype;
  dart.addRtiResources(html$.CssClassSet, ["html|CssClassSet", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setLibraryUri(html$.CssClassSet, I[167]);
  html$.CssRect = class CssRect extends core.Object {
    set height(newHeight) {
      dart.throw(new core.UnsupportedError.new("Can only set height for content rect."));
    }
    set width(newWidth) {
      dart.throw(new core.UnsupportedError.new("Can only set width for content rect."));
    }
    [S$3._addOrSubtractToBoxModel](dimensions, augmentingMeasurement) {
      if (dimensions == null) dart.nullFailed(I[166], 36541, 20, "dimensions");
      if (augmentingMeasurement == null) dart.nullFailed(I[166], 36541, 39, "augmentingMeasurement");
      let styles = this[S$1._element][S.$getComputedStyle]();
      let val = 0;
      for (let measurement of dimensions) {
        if (augmentingMeasurement == html$._MARGIN) {
          val = val + dart.notNull(new html$.Dimension.css(styles[S$.$getPropertyValue](dart.str(augmentingMeasurement) + "-" + dart.str(measurement))).value);
        }
        if (augmentingMeasurement == html$._CONTENT) {
          val = val - dart.notNull(new html$.Dimension.css(styles[S$.$getPropertyValue](dart.str(html$._PADDING) + "-" + dart.str(measurement))).value);
        }
        if (augmentingMeasurement != html$._MARGIN) {
          val = val - dart.notNull(new html$.Dimension.css(styles[S$.$getPropertyValue]("border-" + dart.str(measurement) + "-width")).value);
        }
      }
      return val;
    }
    get right() {
      return dart.notNull(this.left) + dart.notNull(this.width);
    }
    get bottom() {
      return dart.notNull(this.top) + dart.notNull(this.height);
    }
    toString() {
      return "Rectangle (" + dart.str(this.left) + ", " + dart.str(this.top) + ") " + dart.str(this.width) + " x " + dart.str(this.height);
    }
    _equals(other) {
      if (other == null) return false;
      return T$3.RectangleOfnum()[_is](other) && this.left == other[$left] && this.top == other[$top] && this.right == other[$right] && this.bottom == other[$bottom];
    }
    get hashCode() {
      return core.Object.hash(this.left, this.top, this.right, this.bottom);
    }
    intersection(other) {
      T$3.RectangleOfnum()[_as](other);
      if (other == null) dart.nullFailed(I[166], 36606, 47, "other");
      let x0 = math.max(T$.num(), this.left, other[$left]);
      let x1 = math.min(T$.num(), dart.notNull(this.left) + dart.notNull(this.width), dart.notNull(other[$left]) + dart.notNull(other[$width]));
      if (x0 <= x1) {
        let y0 = math.max(T$.num(), this.top, other[$top]);
        let y1 = math.min(T$.num(), dart.notNull(this.top) + dart.notNull(this.height), dart.notNull(other[$top]) + dart.notNull(other[$height]));
        if (y0 <= y1) {
          return new (G.RectangleOfnum()).new(x0, y0, x1 - x0, y1 - y0);
        }
      }
      return null;
    }
    intersects(other) {
      if (other == null) dart.nullFailed(I[166], 36624, 34, "other");
      return dart.notNull(this.left) <= dart.notNull(other[$left]) + dart.notNull(other[$width]) && dart.notNull(other[$left]) <= dart.notNull(this.left) + dart.notNull(this.width) && dart.notNull(this.top) <= dart.notNull(other[$top]) + dart.notNull(other[$height]) && dart.notNull(other[$top]) <= dart.notNull(this.top) + dart.notNull(this.height);
    }
    boundingBox(other) {
      T$3.RectangleOfnum()[_as](other);
      if (other == null) dart.nullFailed(I[166], 36634, 45, "other");
      let right = math.max(T$.num(), dart.notNull(this.left) + dart.notNull(this.width), dart.notNull(other[$left]) + dart.notNull(other[$width]));
      let bottom = math.max(T$.num(), dart.notNull(this.top) + dart.notNull(this.height), dart.notNull(other[$top]) + dart.notNull(other[$height]));
      let left = math.min(T$.num(), this.left, other[$left]);
      let top = math.min(T$.num(), this.top, other[$top]);
      return new (G.RectangleOfnum()).new(left, top, right - left, bottom - top);
    }
    containsRectangle(another) {
      if (another == null) dart.nullFailed(I[166], 36647, 41, "another");
      return dart.notNull(this.left) <= dart.notNull(another[$left]) && dart.notNull(this.left) + dart.notNull(this.width) >= dart.notNull(another[$left]) + dart.notNull(another[$width]) && dart.notNull(this.top) <= dart.notNull(another[$top]) && dart.notNull(this.top) + dart.notNull(this.height) >= dart.notNull(another[$top]) + dart.notNull(another[$height]);
    }
    containsPoint(another) {
      if (another == null) dart.nullFailed(I[166], 36657, 33, "another");
      return dart.notNull(another.x) >= dart.notNull(this.left) && dart.notNull(another.x) <= dart.notNull(this.left) + dart.notNull(this.width) && dart.notNull(another.y) >= dart.notNull(this.top) && dart.notNull(another.y) <= dart.notNull(this.top) + dart.notNull(this.height);
    }
    get topLeft() {
      return new (G.PointOfnum()).new(this.left, this.top);
    }
    get topRight() {
      return new (G.PointOfnum()).new(dart.notNull(this.left) + dart.notNull(this.width), this.top);
    }
    get bottomRight() {
      return new (G.PointOfnum()).new(dart.notNull(this.left) + dart.notNull(this.width), dart.notNull(this.top) + dart.notNull(this.height));
    }
    get bottomLeft() {
      return new (G.PointOfnum()).new(this.left, dart.notNull(this.top) + dart.notNull(this.height));
    }
  };
  (html$.CssRect.new = function(_element) {
    if (_element == null) dart.nullFailed(I[166], 36479, 16, "_element");
    this[S$1._element] = _element;
    ;
  }).prototype = html$.CssRect.prototype;
  dart.addRtiResources(html$.CssRect, ["html|CssRect", "math|Rectangle", "math|_RectangleBase"]);
  dart.setMethodSignature(html$.CssRect, () => dart.global.Object.setPrototypeOf({
    [S$3._addOrSubtractToBoxModel]: T$6.ListOfStringAndStringTonum(),
    intersection: T$5.ObjectNToRectangleNOfnum(),
    [$intersection]: T$5.ObjectNToRectangleNOfnum(),
    intersects: T$3.RectangleOfnumTobool(),
    [$intersects]: T$3.RectangleOfnumTobool(),
    boundingBox: T$5.ObjectNToRectangleOfnum(),
    [$boundingBox]: T$5.ObjectNToRectangleOfnum(),
    containsRectangle: T$3.RectangleOfnumTobool(),
    [$containsRectangle]: T$3.RectangleOfnumTobool(),
    containsPoint: T$3.PointOfnumTobool(),
    [$containsPoint]: T$3.PointOfnumTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.CssRect))));
  dart.setGetterSignature(html$.CssRect, () => dart.global.Object.setPrototypeOf({
    right: T$.num(),
    [$right]: T$.num(),
    bottom: T$.num(),
    [$bottom]: T$.num(),
    topLeft: T$3.PointOfnum(),
    [$topLeft]: T$3.PointOfnum(),
    topRight: T$3.PointOfnum(),
    [$topRight]: T$3.PointOfnum(),
    bottomRight: T$3.PointOfnum(),
    [$bottomRight]: T$3.PointOfnum(),
    bottomLeft: T$3.PointOfnum(),
    [$bottomLeft]: T$3.PointOfnum()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.CssRect))));
  dart.setSetterSignature(html$.CssRect, () => dart.global.Object.setPrototypeOf({
    height: T$.dynamic(),
    [$height]: T$.dynamic(),
    width: T$.dynamic(),
    [$width]: T$.dynamic()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$.CssRect))));
  dart.setLibraryUri(html$.CssRect, I[167]);
  dart.setFieldSignature(html$.CssRect, () => dart.global.Object.setPrototypeOf({[S$1._element]: {type: T$3.Element(), isConst: false, isFinal: false, libraryUri: I[167]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$.CssRect))));
  dart.defineExtensionMethods(html$.CssRect, [
    'toString',
    '_equals',
    'intersection',
    'intersects',
    'boundingBox',
    'containsRectangle',
    'containsPoint'
  ]);
  dart.defineExtensionAccessors(html$.CssRect, [
    'height',
    'width',
    'right',
    'bottom',
    'hashCode',
    'topLeft',
    'topRight',
    'bottomRight',
    'bottomLeft'
  ]);
  html$._ContentCssRect = class _ContentCssRect extends html$.CssRect {
    static ['_#new#tearOff'](element) {
      if (element == null) dart.nullFailed(I[166], 36317, 27, "element");
      return new html$._ContentCssRect.new(element);
    }
    get height() {
      return dart.notNull(this[S$1._element][S.$offsetHeight]) + dart.notNull(this[S$3._addOrSubtractToBoxModel](html$._HEIGHT, html$._CONTENT));
    }
    get width() {
      return dart.notNull(this[S$1._element][S.$offsetWidth]) + dart.notNull(this[S$3._addOrSubtractToBoxModel](html$._WIDTH, html$._CONTENT));
    }
    set height(newHeight) {
      if (T$6.Dimension()[_is](newHeight)) {
        let newHeightAsDimension = newHeight;
        if (dart.notNull(newHeightAsDimension.value) < 0) newHeight = new html$.Dimension.px(0);
        this[S$1._element].style[$height] = dart.toString(newHeight);
      } else if (typeof newHeight == 'number') {
        if (dart.notNull(newHeight) < 0) newHeight = 0;
        this[S$1._element].style[$height] = dart.str(newHeight) + "px";
      } else {
        dart.throw(new core.ArgumentError.new("newHeight is not a Dimension or num"));
      }
    }
    set width(newWidth) {
      if (T$6.Dimension()[_is](newWidth)) {
        let newWidthAsDimension = newWidth;
        if (dart.notNull(newWidthAsDimension.value) < 0) newWidth = new html$.Dimension.px(0);
        this[S$1._element].style[$width] = dart.toString(newWidth);
      } else if (typeof newWidth == 'number') {
        if (dart.notNull(newWidth) < 0) newWidth = 0;
        this[S$1._element].style[$width] = dart.str(newWidth) + "px";
      } else {
        dart.throw(new core.ArgumentError.new("newWidth is not a Dimension or num"));
      }
    }
    get left() {
      return dart.notNull(this[S$1._element].getBoundingClientRect()[$left]) - dart.notNull(this[S$3._addOrSubtractToBoxModel](G.JSArrayOfString().of(["left"]), html$._CONTENT));
    }
    get top() {
      return dart.notNull(this[S$1._element].getBoundingClientRect()[$top]) - dart.notNull(this[S$3._addOrSubtractToBoxModel](G.JSArrayOfString().of(["top"]), html$._CONTENT));
    }
  };
  (html$._ContentCssRect.new = function(element) {
    if (element == null) dart.nullFailed(I[166], 36317, 27, "element");
    dart.global.Object.getPrototypeOf(html$._ContentCssRect).new.call(this, element);
    ;
  }).prototype = html$._ContentCssRect.prototype;
  dart.addRtiResources(html$._ContentCssRect, ["html|_ContentCssRect"]);
  dart.setGetterSignature(html$._ContentCssRect, () => dart.global.Object.setPrototypeOf({
    height: T$.num(),
    [$height]: T$.num(),
    width: T$.num(),
    [$width]: T$.num(),
    left: T$.num(),
    [$left]: T$.num(),
    top: T$.num(),
    [$top]: T$.num()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._ContentCssRect))));
  dart.setLibraryUri(html$._ContentCssRect, I[167]);
  dart.defineExtensionAccessors(html$._ContentCssRect, ['height', 'width', 'left', 'top']);
  html$._ContentCssListRect = class _ContentCssListRect extends html$._ContentCssRect {
    static ['_#new#tearOff'](elementList) {
      if (elementList == null) dart.nullFailed(I[166], 36383, 37, "elementList");
      return new html$._ContentCssListRect.new(elementList);
    }
    set height(newHeight) {
      this[S$3._elementList][$forEach](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 36396, 27, "e");
        return e[S.$contentEdge].height = newHeight;
      }, T$5.ElementTovoid()));
    }
    get height() {
      return super.height;
    }
    set width(newWidth) {
      this[S$3._elementList][$forEach](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 36406, 27, "e");
        return e[S.$contentEdge].width = newWidth;
      }, T$5.ElementTovoid()));
    }
    get width() {
      return super.width;
    }
  };
  (html$._ContentCssListRect.new = function(elementList) {
    if (elementList == null) dart.nullFailed(I[166], 36383, 37, "elementList");
    this[S$3._elementList] = elementList;
    dart.global.Object.getPrototypeOf(html$._ContentCssListRect).new.call(this, elementList[$first]);
    ;
  }).prototype = html$._ContentCssListRect.prototype;
  dart.addRtiResources(html$._ContentCssListRect, ["html|_ContentCssListRect"]);
  dart.setLibraryUri(html$._ContentCssListRect, I[167]);
  dart.setFieldSignature(html$._ContentCssListRect, () => dart.global.Object.setPrototypeOf({[S$3._elementList]: {type: T$3.ListOfElement(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._ContentCssListRect))));
  dart.defineExtensionAccessors(html$._ContentCssListRect, ['height', 'width']);
  html$._PaddingCssRect = class _PaddingCssRect extends html$.CssRect {
    static ['_#new#tearOff'](element) {
      return new html$._PaddingCssRect.new(element);
    }
    get height() {
      return dart.notNull(this[S$1._element][S.$offsetHeight]) + dart.notNull(this[S$3._addOrSubtractToBoxModel](html$._HEIGHT, html$._PADDING));
    }
    set height(value) {
      super.height = value;
    }
    get width() {
      return dart.notNull(this[S$1._element][S.$offsetWidth]) + dart.notNull(this[S$3._addOrSubtractToBoxModel](html$._WIDTH, html$._PADDING));
    }
    set width(value) {
      super.width = value;
    }
    get left() {
      return dart.notNull(this[S$1._element].getBoundingClientRect()[$left]) - dart.notNull(this[S$3._addOrSubtractToBoxModel](G.JSArrayOfString().of(["left"]), html$._PADDING));
    }
    get top() {
      return dart.notNull(this[S$1._element].getBoundingClientRect()[$top]) - dart.notNull(this[S$3._addOrSubtractToBoxModel](G.JSArrayOfString().of(["top"]), html$._PADDING));
    }
  };
  (html$._PaddingCssRect.new = function(element) {
    dart.global.Object.getPrototypeOf(html$._PaddingCssRect).new.call(this, T$3.Element()[_as](element));
    ;
  }).prototype = html$._PaddingCssRect.prototype;
  dart.addRtiResources(html$._PaddingCssRect, ["html|_PaddingCssRect"]);
  dart.setGetterSignature(html$._PaddingCssRect, () => dart.global.Object.setPrototypeOf({
    height: T$.num(),
    [$height]: T$.num(),
    width: T$.num(),
    [$width]: T$.num(),
    left: T$.num(),
    [$left]: T$.num(),
    top: T$.num(),
    [$top]: T$.num()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._PaddingCssRect))));
  dart.setLibraryUri(html$._PaddingCssRect, I[167]);
  dart.defineExtensionAccessors(html$._PaddingCssRect, ['height', 'width', 'left', 'top']);
  html$._BorderCssRect = class _BorderCssRect extends html$.CssRect {
    static ['_#new#tearOff'](element) {
      return new html$._BorderCssRect.new(element);
    }
    get height() {
      return this[S$1._element][S.$offsetHeight];
    }
    set height(value) {
      super.height = value;
    }
    get width() {
      return this[S$1._element][S.$offsetWidth];
    }
    set width(value) {
      super.width = value;
    }
    get left() {
      return this[S$1._element].getBoundingClientRect()[$left];
    }
    get top() {
      return this[S$1._element].getBoundingClientRect()[$top];
    }
  };
  (html$._BorderCssRect.new = function(element) {
    dart.global.Object.getPrototypeOf(html$._BorderCssRect).new.call(this, T$3.Element()[_as](element));
    ;
  }).prototype = html$._BorderCssRect.prototype;
  dart.addRtiResources(html$._BorderCssRect, ["html|_BorderCssRect"]);
  dart.setGetterSignature(html$._BorderCssRect, () => dart.global.Object.setPrototypeOf({
    height: T$.num(),
    [$height]: T$.num(),
    width: T$.num(),
    [$width]: T$.num(),
    left: T$.num(),
    [$left]: T$.num(),
    top: T$.num(),
    [$top]: T$.num()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._BorderCssRect))));
  dart.setLibraryUri(html$._BorderCssRect, I[167]);
  dart.defineExtensionAccessors(html$._BorderCssRect, ['height', 'width', 'left', 'top']);
  html$._MarginCssRect = class _MarginCssRect extends html$.CssRect {
    static ['_#new#tearOff'](element) {
      return new html$._MarginCssRect.new(element);
    }
    get height() {
      return dart.notNull(this[S$1._element][S.$offsetHeight]) + dart.notNull(this[S$3._addOrSubtractToBoxModel](html$._HEIGHT, html$._MARGIN));
    }
    set height(value) {
      super.height = value;
    }
    get width() {
      return dart.notNull(this[S$1._element][S.$offsetWidth]) + dart.notNull(this[S$3._addOrSubtractToBoxModel](html$._WIDTH, html$._MARGIN));
    }
    set width(value) {
      super.width = value;
    }
    get left() {
      return dart.notNull(this[S$1._element].getBoundingClientRect()[$left]) - dart.notNull(this[S$3._addOrSubtractToBoxModel](G.JSArrayOfString().of(["left"]), html$._MARGIN));
    }
    get top() {
      return dart.notNull(this[S$1._element].getBoundingClientRect()[$top]) - dart.notNull(this[S$3._addOrSubtractToBoxModel](G.JSArrayOfString().of(["top"]), html$._MARGIN));
    }
  };
  (html$._MarginCssRect.new = function(element) {
    dart.global.Object.getPrototypeOf(html$._MarginCssRect).new.call(this, T$3.Element()[_as](element));
    ;
  }).prototype = html$._MarginCssRect.prototype;
  dart.addRtiResources(html$._MarginCssRect, ["html|_MarginCssRect"]);
  dart.setGetterSignature(html$._MarginCssRect, () => dart.global.Object.setPrototypeOf({
    height: T$.num(),
    [$height]: T$.num(),
    width: T$.num(),
    [$width]: T$.num(),
    left: T$.num(),
    [$left]: T$.num(),
    top: T$.num(),
    [$top]: T$.num()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._MarginCssRect))));
  dart.setLibraryUri(html$._MarginCssRect, I[167]);
  dart.defineExtensionAccessors(html$._MarginCssRect, ['height', 'width', 'left', 'top']);
  html_common.CssClassSetImpl = class CssClassSetImpl extends G$.SetBaseOfString() {
    [S$3._validateToken](value) {
      if (value == null) dart.nullFailed(I[168], 10, 32, "value");
      if (dart.test(html_common.CssClassSetImpl._validTokenRE.hasMatch(value))) return value;
      dart.throw(new core.ArgumentError.value(value, "value", "Not a valid class token"));
    }
    toString() {
      return this.readClasses()[$join](" ");
    }
    toggle(value, shouldAdd = null) {
      if (value == null) dart.nullFailed(I[168], 26, 22, "value");
      this[S$3._validateToken](value);
      let s = this.readClasses();
      let result = false;
      if (shouldAdd == null) shouldAdd = !dart.test(s.contains(value));
      if (dart.test(shouldAdd)) {
        s.add(value);
        result = true;
      } else {
        s.remove(value);
      }
      this.writeClasses(s);
      return result;
    }
    get frozen() {
      return false;
    }
    get iterator() {
      return this.readClasses().iterator;
    }
    forEach(f) {
      if (f == null) dart.nullFailed(I[168], 52, 21, "f");
      this.readClasses()[$forEach](f);
    }
    join(separator = "") {
      if (separator == null) dart.nullFailed(I[168], 56, 23, "separator");
      return this.readClasses()[$join](separator);
    }
    map(T, f) {
      if (f == null) dart.nullFailed(I[168], 58, 24, "f");
      return this.readClasses()[$map](T, f);
    }
    where(f) {
      if (f == null) dart.nullFailed(I[168], 60, 31, "f");
      return this.readClasses()[$where](f);
    }
    expand(T, f) {
      if (f == null) dart.nullFailed(I[168], 62, 37, "f");
      return this.readClasses()[$expand](T, f);
    }
    every(f) {
      if (f == null) dart.nullFailed(I[168], 65, 19, "f");
      return this.readClasses()[$every](f);
    }
    any(f) {
      if (f == null) dart.nullFailed(I[168], 67, 17, "f");
      return this.readClasses()[$any](f);
    }
    get isEmpty() {
      return this.readClasses()[$isEmpty];
    }
    get isNotEmpty() {
      return this.readClasses()[$isNotEmpty];
    }
    get length() {
      return this.readClasses()[$length];
    }
    reduce(combine) {
      T$.StringAndStringToString()[_as](combine);
      if (combine == null) dart.nullFailed(I[168], 75, 24, "combine");
      return this.readClasses()[$reduce](combine);
    }
    fold(T, initialValue, combine) {
      if (combine == null) dart.nullFailed(I[168], 79, 31, "combine");
      return this.readClasses()[$fold](T, initialValue, combine);
    }
    contains(value) {
      if (!(typeof value == 'string')) return false;
      this[S$3._validateToken](value);
      return this.readClasses().contains(value);
    }
    lookup(value) {
      return dart.test(this.contains(value)) ? T$.String()[_as](value) : null;
    }
    add(value) {
      let t$36372;
      T$.String()[_as](value);
      if (value == null) dart.nullFailed(I[168], 107, 19, "value");
      this[S$3._validateToken](value);
      return T$.bool()[_as]((t$36372 = this.modify(dart.fn(s => {
        if (s == null) dart.nullFailed(I[168], 111, 20, "s");
        return s.add(value);
      }, T$6.SetOfStringTobool())), t$36372 == null ? false : t$36372));
    }
    remove(value) {
      if (!(typeof value == 'string')) return false;
      this[S$3._validateToken](value);
      let s = this.readClasses();
      let result = s.remove(value);
      this.writeClasses(s);
      return result;
    }
    addAll(iterable) {
      T$0.IterableOfString()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[168], 136, 32, "iterable");
      this.modify(dart.fn(s => {
        if (s == null) dart.nullFailed(I[168], 138, 13, "s");
        return s.addAll(iterable[$map](T$.String(), dart.bind(this, S$3._validateToken)));
      }, T$6.SetOfStringTovoid()));
    }
    removeAll(iterable) {
      if (iterable == null) dart.nullFailed(I[168], 147, 36, "iterable");
      this.modify(dart.fn(s => {
        if (s == null) dart.nullFailed(I[168], 148, 13, "s");
        return s.removeAll(iterable);
      }, T$6.SetOfStringTovoid()));
    }
    toggleAll(iterable, shouldAdd = null) {
      if (iterable == null) dart.nullFailed(I[168], 161, 35, "iterable");
      iterable[$forEach](dart.fn(e => {
        if (e == null) dart.nullFailed(I[168], 162, 23, "e");
        return this.toggle(e, shouldAdd);
      }, T$.StringTovoid()));
    }
    retainAll(iterable) {
      if (iterable == null) dart.nullFailed(I[168], 165, 36, "iterable");
      this.modify(dart.fn(s => {
        if (s == null) dart.nullFailed(I[168], 166, 13, "s");
        return s.retainAll(iterable);
      }, T$6.SetOfStringTovoid()));
    }
    removeWhere(test) {
      if (test == null) dart.nullFailed(I[168], 169, 25, "test");
      this.modify(dart.fn(s => {
        if (s == null) dart.nullFailed(I[168], 170, 13, "s");
        return s.removeWhere(test);
      }, T$6.SetOfStringTovoid()));
    }
    retainWhere(test) {
      if (test == null) dart.nullFailed(I[168], 173, 25, "test");
      this.modify(dart.fn(s => {
        if (s == null) dart.nullFailed(I[168], 174, 13, "s");
        return s.retainWhere(test);
      }, T$6.SetOfStringTovoid()));
    }
    containsAll(collection) {
      if (collection == null) dart.nullFailed(I[168], 177, 38, "collection");
      return this.readClasses().containsAll(collection);
    }
    intersection(other) {
      if (other == null) dart.nullFailed(I[168], 180, 41, "other");
      return this.readClasses().intersection(other);
    }
    union(other) {
      T$6.SetOfString()[_as](other);
      if (other == null) dart.nullFailed(I[168], 183, 33, "other");
      return this.readClasses().union(other);
    }
    difference(other) {
      if (other == null) dart.nullFailed(I[168], 185, 39, "other");
      return this.readClasses().difference(other);
    }
    get first() {
      return this.readClasses()[$first];
    }
    get last() {
      return this.readClasses()[$last];
    }
    get single() {
      return this.readClasses()[$single];
    }
    toList(opts) {
      let growable = opts && 'growable' in opts ? opts.growable : true;
      if (growable == null) dart.nullFailed(I[168], 190, 29, "growable");
      return this.readClasses()[$toList]({growable: growable});
    }
    toSet() {
      return this.readClasses().toSet();
    }
    take(n) {
      if (n == null) dart.nullFailed(I[168], 193, 29, "n");
      return this.readClasses()[$take](n);
    }
    takeWhile(test) {
      if (test == null) dart.nullFailed(I[168], 194, 35, "test");
      return this.readClasses()[$takeWhile](test);
    }
    skip(n) {
      if (n == null) dart.nullFailed(I[168], 196, 29, "n");
      return this.readClasses()[$skip](n);
    }
    skipWhile(test) {
      if (test == null) dart.nullFailed(I[168], 197, 35, "test");
      return this.readClasses()[$skipWhile](test);
    }
    firstWhere(test, opts) {
      if (test == null) dart.nullFailed(I[168], 199, 26, "test");
      let orElse = opts && 'orElse' in opts ? opts.orElse : null;
      T$3.VoidToNString()[_as](orElse);
      return this.readClasses()[$firstWhere](test, {orElse: orElse});
    }
    lastWhere(test, opts) {
      if (test == null) dart.nullFailed(I[168], 201, 25, "test");
      let orElse = opts && 'orElse' in opts ? opts.orElse : null;
      T$3.VoidToNString()[_as](orElse);
      return this.readClasses()[$lastWhere](test, {orElse: orElse});
    }
    singleWhere(test, opts) {
      if (test == null) dart.nullFailed(I[168], 203, 27, "test");
      let orElse = opts && 'orElse' in opts ? opts.orElse : null;
      T$3.VoidToNString()[_as](orElse);
      return this.readClasses()[$singleWhere](test, {orElse: orElse});
    }
    elementAt(index) {
      if (index == null) dart.nullFailed(I[168], 205, 24, "index");
      return this.readClasses()[$elementAt](index);
    }
    clear() {
      this.modify(dart.fn(s => {
        if (s == null) dart.nullFailed(I[168], 209, 13, "s");
        return s.clear();
      }, T$6.SetOfStringTovoid()));
    }
    modify(f) {
      if (f == null) dart.nullFailed(I[168], 222, 10, "f");
      let s = this.readClasses();
      let ret = f(s);
      this.writeClasses(s);
      return ret;
    }
  };
  (html_common.CssClassSetImpl.new = function() {
    this.$ti = this.$ti || T$6.CssClassSetImpl();
    dart.global.Object.getPrototypeOf(html_common.CssClassSetImpl).new.call(this);
    ;
  }).prototype = html_common.CssClassSetImpl.prototype;
  dart.addRtiResources(html_common.CssClassSetImpl, ["html_common|CssClassSetImpl", "html|CssClassSet", "core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(html_common.CssClassSetImpl, () => dart.global.Object.setPrototypeOf({
    [S$3._validateToken]: T$.StringToString(),
    toggle: T$5.StringAndboolNTobool(),
    contains: T$.ObjectNTobool(),
    [$contains]: T$.ObjectNTobool(),
    lookup: T$6.ObjectNToStringN(),
    add: T$.ObjectNTobool(),
    remove: T$.ObjectNTobool(),
    toggleAll: T$6.IterableOfStringAndboolNTovoid(),
    toSet: T$6.VoidToSetOfString(),
    [$toSet]: T$6.VoidToSetOfString(),
    modify: T$6.FnTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html_common.CssClassSetImpl))));
  dart.setGetterSignature(html_common.CssClassSetImpl, () => dart.global.Object.setPrototypeOf({
    frozen: T$.bool(),
    iterator: T$2.IteratorOfString(),
    [$iterator]: T$2.IteratorOfString(),
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html_common.CssClassSetImpl))));
  dart.setLibraryUri(html_common.CssClassSetImpl, I[169]);
  dart.setStaticFieldSignature(html_common.CssClassSetImpl, () => ['_validTokenRE']);
  dart.defineExtensionMethods(html_common.CssClassSetImpl, [
    'toString',
    'forEach',
    'join',
    'map',
    'where',
    'expand',
    'every',
    'any',
    'reduce',
    'fold',
    'contains',
    'toList',
    'toSet',
    'take',
    'takeWhile',
    'skip',
    'skipWhile',
    'firstWhere',
    'lastWhere',
    'singleWhere',
    'elementAt'
  ]);
  dart.defineExtensionAccessors(html_common.CssClassSetImpl, [
    'iterator',
    'isEmpty',
    'isNotEmpty',
    'length',
    'first',
    'last',
    'single'
  ]);
  dart.defineLazy(html_common.CssClassSetImpl, {
    /*html_common.CssClassSetImpl._validTokenRE*/get _validTokenRE() {
      return core.RegExp.new("^\\S+$");
    }
  }, false);
  html$._MultiElementCssClassSet = class _MultiElementCssClassSet extends html_common.CssClassSetImpl {
    static new(elements) {
      if (elements == null) dart.nullFailed(I[166], 36691, 54, "elements");
      return new html$._MultiElementCssClassSet.__(elements, G$.ListOfCssClassSetImpl().from(elements[$map](T$.dynamic(), dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 36693, 62, "e");
        return e[S.$classes];
      }, T$6.ElementToCssClassSet()))));
    }
    static ['_#new#tearOff'](elements) {
      if (elements == null) dart.nullFailed(I[166], 36691, 54, "elements");
      return html$._MultiElementCssClassSet.new(elements);
    }
    static ['_#_#tearOff'](_elementIterable, _sets) {
      if (_elementIterable == null) dart.nullFailed(I[166], 36696, 35, "_elementIterable");
      if (_sets == null) dart.nullFailed(I[166], 36696, 58, "_sets");
      return new html$._MultiElementCssClassSet.__(_elementIterable, _sets);
    }
    readClasses() {
      let s = new (G$._IdentityHashSetOfString()).new();
      this[S$3._sets][$forEach](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 36700, 36, "e");
        return s.addAll(e.readClasses());
      }, T$6.CssClassSetImplTovoid()));
      return s;
    }
    writeClasses(s) {
      if (s == null) dart.nullFailed(I[166], 36704, 33, "s");
      let classes = s[$join](" ");
      for (let e of this[S$0._elementIterable]) {
        e.className = classes;
      }
    }
    modify(f) {
      if (f == null) dart.nullFailed(I[166], 36720, 10, "f");
      this[S$3._sets][$forEach](dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 36721, 36, "e");
        return e.modify(f);
      }, T$6.CssClassSetImplTovoid()));
    }
    toggle(value, shouldAdd = null) {
      if (value == null) dart.nullFailed(I[166], 36731, 22, "value");
      return this[S$3._sets][$fold](T$.bool(), false, dart.fn((changed, e) => {
        if (changed == null) dart.nullFailed(I[166], 36733, 13, "changed");
        if (e == null) dart.nullFailed(I[166], 36733, 38, "e");
        return dart.test(e.toggle(value, shouldAdd)) || dart.test(changed);
      }, T$6.boolAndCssClassSetImplTobool()));
    }
    remove(value) {
      return this[S$3._sets][$fold](T$.bool(), false, dart.fn((changed, e) => {
        if (changed == null) dart.nullFailed(I[166], 36744, 20, "changed");
        if (e == null) dart.nullFailed(I[166], 36744, 45, "e");
        return dart.test(e.remove(value)) || dart.test(changed);
      }, T$6.boolAndCssClassSetImplTobool()));
    }
  };
  (html$._MultiElementCssClassSet.__ = function(_elementIterable, _sets) {
    if (_elementIterable == null) dart.nullFailed(I[166], 36696, 35, "_elementIterable");
    if (_sets == null) dart.nullFailed(I[166], 36696, 58, "_sets");
    this[S$0._elementIterable] = _elementIterable;
    this[S$3._sets] = _sets;
    this.$ti = this.$ti || T$6._MultiElementCssClassSet();
    dart.global.Object.getPrototypeOf(html$._MultiElementCssClassSet).new.call(this);
    ;
  }).prototype = html$._MultiElementCssClassSet.prototype;
  dart.addRtiResources(html$._MultiElementCssClassSet, ["html|_MultiElementCssClassSet"]);
  dart.setMethodSignature(html$._MultiElementCssClassSet, () => dart.global.Object.setPrototypeOf({
    readClasses: T$6.VoidToSetOfString(),
    writeClasses: T$6.SetOfStringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._MultiElementCssClassSet))));
  dart.setStaticMethodSignature(html$._MultiElementCssClassSet, () => ['new']);
  dart.setLibraryUri(html$._MultiElementCssClassSet, I[167]);
  dart.setFieldSignature(html$._MultiElementCssClassSet, () => dart.global.Object.setPrototypeOf({
    [S$0._elementIterable]: {type: T$4.IterableOfElement(), isConst: false, isFinal: true, libraryUri: I[11]},
    [S$3._sets]: {type: T$6.ListOfCssClassSetImpl(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._MultiElementCssClassSet))));
  html$._ElementCssClassSet = class _ElementCssClassSet extends html_common.CssClassSetImpl {
    static ['_#new#tearOff'](_element) {
      if (_element == null) dart.nullFailed(I[166], 36750, 28, "_element");
      return new html$._ElementCssClassSet.new(_element);
    }
    readClasses() {
      let s = new (G$._IdentityHashSetOfString()).new();
      let classname = this[S$1._element].className;
      for (let name of classname[$split](" ")) {
        let trimmed = name[$trim]();
        if (!trimmed[$isEmpty]) {
          s.add(trimmed);
        }
      }
      return s;
    }
    writeClasses(s) {
      if (s == null) dart.nullFailed(I[166], 36765, 33, "s");
      this[S$1._element].className = s[$join](" ");
    }
    get length() {
      return html$._ElementCssClassSet._classListLength(html$._ElementCssClassSet._classListOf(this[S$1._element]));
    }
    get isEmpty() {
      return this.length === 0;
    }
    get isNotEmpty() {
      return this.length !== 0;
    }
    clear() {
      this[S$1._element].className = "";
    }
    contains(value) {
      return html$._ElementCssClassSet._contains(this[S$1._element], value);
    }
    add(value) {
      T$.String()[_as](value);
      if (value == null) dart.nullFailed(I[166], 36781, 19, "value");
      return html$._ElementCssClassSet._add(this[S$1._element], value);
    }
    remove(value) {
      return typeof value == 'string' && dart.test(html$._ElementCssClassSet._remove(this[S$1._element], value));
    }
    toggle(value, shouldAdd = null) {
      if (value == null) dart.nullFailed(I[166], 36789, 22, "value");
      return html$._ElementCssClassSet._toggle(this[S$1._element], value, shouldAdd);
    }
    addAll(iterable) {
      T$0.IterableOfString()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[166], 36793, 32, "iterable");
      html$._ElementCssClassSet._addAll(this[S$1._element], iterable);
    }
    removeAll(iterable) {
      if (iterable == null) dart.nullFailed(I[166], 36797, 36, "iterable");
      html$._ElementCssClassSet._removeAll(this[S$1._element], iterable);
    }
    retainAll(iterable) {
      if (iterable == null) dart.nullFailed(I[166], 36801, 36, "iterable");
      html$._ElementCssClassSet._removeWhere(this[S$1._element], dart.bind(iterable[$toSet](), 'contains'), false);
    }
    removeWhere(test) {
      if (test == null) dart.nullFailed(I[166], 36805, 25, "test");
      html$._ElementCssClassSet._removeWhere(this[S$1._element], test, true);
    }
    retainWhere(test) {
      if (test == null) dart.nullFailed(I[166], 36809, 25, "test");
      html$._ElementCssClassSet._removeWhere(this[S$1._element], test, false);
    }
    static _contains(_element, value) {
      if (_element == null) dart.nullFailed(I[166], 36813, 33, "_element");
      return typeof value == 'string' && dart.test(html$._ElementCssClassSet._classListContains(html$._ElementCssClassSet._classListOf(_element), value));
    }
    static _add(_element, value) {
      if (_element == null) dart.nullFailed(I[166], 36818, 28, "_element");
      if (value == null) dart.nullFailed(I[166], 36818, 45, "value");
      let list = html$._ElementCssClassSet._classListOf(_element);
      let added = !dart.test(html$._ElementCssClassSet._classListContainsBeforeAddOrRemove(list, value));
      html$._ElementCssClassSet._classListAdd(list, value);
      return added;
    }
    static _remove(_element, value) {
      if (_element == null) dart.nullFailed(I[166], 36827, 31, "_element");
      if (value == null) dart.nullFailed(I[166], 36827, 48, "value");
      let list = html$._ElementCssClassSet._classListOf(_element);
      let removed = html$._ElementCssClassSet._classListContainsBeforeAddOrRemove(list, value);
      html$._ElementCssClassSet._classListRemove(list, value);
      return removed;
    }
    static _toggle(_element, value, shouldAdd) {
      if (_element == null) dart.nullFailed(I[166], 36834, 31, "_element");
      if (value == null) dart.nullFailed(I[166], 36834, 48, "value");
      return shouldAdd == null ? html$._ElementCssClassSet._toggleDefault(_element, value) : html$._ElementCssClassSet._toggleOnOff(_element, value, shouldAdd);
    }
    static _toggleDefault(_element, value) {
      if (_element == null) dart.nullFailed(I[166], 36843, 38, "_element");
      if (value == null) dart.nullFailed(I[166], 36843, 55, "value");
      let list = html$._ElementCssClassSet._classListOf(_element);
      return html$._ElementCssClassSet._classListToggle1(list, value);
    }
    static _toggleOnOff(_element, value, shouldAdd) {
      let t$36372;
      if (_element == null) dart.nullFailed(I[166], 36848, 36, "_element");
      if (value == null) dart.nullFailed(I[166], 36848, 53, "value");
      let list = html$._ElementCssClassSet._classListOf(_element);
      if (dart.test((t$36372 = shouldAdd, t$36372 == null ? false : t$36372))) {
        html$._ElementCssClassSet._classListAdd(list, value);
        return true;
      } else {
        html$._ElementCssClassSet._classListRemove(list, value);
        return false;
      }
    }
    static _addAll(_element, iterable) {
      if (_element == null) dart.nullFailed(I[166], 36863, 31, "_element");
      if (iterable == null) dart.nullFailed(I[166], 36863, 58, "iterable");
      let list = html$._ElementCssClassSet._classListOf(_element);
      for (let value of iterable) {
        html$._ElementCssClassSet._classListAdd(list, value);
      }
    }
    static _removeAll(_element, iterable) {
      if (_element == null) dart.nullFailed(I[166], 36870, 34, "_element");
      if (iterable == null) dart.nullFailed(I[166], 36870, 62, "iterable");
      let list = html$._ElementCssClassSet._classListOf(_element);
      for (let value of iterable) {
        html$._ElementCssClassSet._classListRemove(list, T$.String()[_as](value));
      }
    }
    static _removeWhere(_element, test, doRemove) {
      if (_element == null) dart.nullFailed(I[166], 36878, 15, "_element");
      if (test == null) dart.nullFailed(I[166], 36878, 30, "test");
      if (doRemove == null) dart.nullFailed(I[166], 36878, 54, "doRemove");
      let list = html$._ElementCssClassSet._classListOf(_element);
      let i = 0;
      while (i < dart.notNull(html$._ElementCssClassSet._classListLength(list))) {
        let item = dart.nullCheck(list.item(i));
        if (doRemove == test(item)) {
          html$._ElementCssClassSet._classListRemove(list, item);
        } else {
          i = i + 1;
        }
      }
    }
    static _classListOf(e) {
      if (e == null) dart.nullFailed(I[166], 36895, 44, "e");
      return e.classList;
    }
    static _classListLength(list) {
      if (list == null) dart.nullFailed(I[166], 36900, 44, "list");
      return list.length;
    }
    static _classListContains(list, value) {
      if (list == null) dart.nullFailed(I[166], 36903, 47, "list");
      if (value == null) dart.nullFailed(I[166], 36903, 60, "value");
      return list.contains(value);
    }
    static _classListContainsBeforeAddOrRemove(list, value) {
      if (list == null) dart.nullFailed(I[166], 36907, 24, "list");
      if (value == null) dart.nullFailed(I[166], 36907, 37, "value");
      return list.contains(value);
    }
    static _classListAdd(list, value) {
      if (list == null) dart.nullFailed(I[166], 36916, 42, "list");
      if (value == null) dart.nullFailed(I[166], 36916, 55, "value");
      list.add(value);
    }
    static _classListRemove(list, value) {
      if (list == null) dart.nullFailed(I[166], 36921, 45, "list");
      if (value == null) dart.nullFailed(I[166], 36921, 58, "value");
      list.remove(value);
    }
    static _classListToggle1(list, value) {
      if (list == null) dart.nullFailed(I[166], 36926, 46, "list");
      if (value == null) dart.nullFailed(I[166], 36926, 59, "value");
      return list.toggle(value);
    }
    static _classListToggle2(list, value, shouldAdd) {
      if (list == null) dart.nullFailed(I[166], 36931, 20, "list");
      if (value == null) dart.nullFailed(I[166], 36931, 33, "value");
      return list.toggle(value, shouldAdd);
    }
  };
  (html$._ElementCssClassSet.new = function(_element) {
    if (_element == null) dart.nullFailed(I[166], 36750, 28, "_element");
    this[S$1._element] = _element;
    this.$ti = this.$ti || T$6._ElementCssClassSet();
    dart.global.Object.getPrototypeOf(html$._ElementCssClassSet).new.call(this);
    ;
  }).prototype = html$._ElementCssClassSet.prototype;
  dart.addRtiResources(html$._ElementCssClassSet, ["html|_ElementCssClassSet"]);
  dart.setMethodSignature(html$._ElementCssClassSet, () => dart.global.Object.setPrototypeOf({
    readClasses: T$6.VoidToSetOfString(),
    writeClasses: T$6.SetOfStringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._ElementCssClassSet))));
  dart.setStaticMethodSignature(html$._ElementCssClassSet, () => ['_contains', '_add', '_remove', '_toggle', '_toggleDefault', '_toggleOnOff', '_addAll', '_removeAll', '_removeWhere', '_classListOf', '_classListLength', '_classListContains', '_classListContainsBeforeAddOrRemove', '_classListAdd', '_classListRemove', '_classListToggle1', '_classListToggle2']);
  dart.setLibraryUri(html$._ElementCssClassSet, I[167]);
  dart.setFieldSignature(html$._ElementCssClassSet, () => dart.global.Object.setPrototypeOf({[S$1._element]: {type: T$3.Element(), isConst: false, isFinal: true, libraryUri: I[167]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._ElementCssClassSet))));
  dart.defineExtensionMethods(html$._ElementCssClassSet, ['contains']);
  dart.defineExtensionAccessors(html$._ElementCssClassSet, ['length', 'isEmpty', 'isNotEmpty']);
  html$.Dimension = class Dimension extends core.Object {
    static ['_#percent#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[166], 36946, 26, "_value");
      return new html$.Dimension.percent(_value);
    }
    static ['_#px#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[166], 36949, 21, "_value");
      return new html$.Dimension.px(_value);
    }
    static ['_#pc#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[166], 36952, 21, "_value");
      return new html$.Dimension.pc(_value);
    }
    static ['_#pt#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[166], 36955, 21, "_value");
      return new html$.Dimension.pt(_value);
    }
    static ['_#inch#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[166], 36958, 23, "_value");
      return new html$.Dimension.inch(_value);
    }
    static ['_#cm#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[166], 36961, 21, "_value");
      return new html$.Dimension.cm(_value);
    }
    static ['_#mm#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[166], 36964, 21, "_value");
      return new html$.Dimension.mm(_value);
    }
    static ['_#em#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[166], 36973, 21, "_value");
      return new html$.Dimension.em(_value);
    }
    static ['_#ex#tearOff'](_value) {
      if (_value == null) dart.nullFailed(I[166], 36982, 21, "_value");
      return new html$.Dimension.ex(_value);
    }
    static ['_#css#tearOff'](cssValue) {
      if (cssValue == null) dart.nullFailed(I[166], 36993, 24, "cssValue");
      return new html$.Dimension.css(cssValue);
    }
    toString() {
      return dart.str(this[S$1._value$6]) + dart.str(this[S$3._unit]);
    }
    get value() {
      return this[S$1._value$6];
    }
  };
  (html$.Dimension.percent = function(_value) {
    if (_value == null) dart.nullFailed(I[166], 36946, 26, "_value");
    this[S$1._value$6] = _value;
    this[S$3._unit] = "%";
    ;
  }).prototype = html$.Dimension.prototype;
  (html$.Dimension.px = function(_value) {
    if (_value == null) dart.nullFailed(I[166], 36949, 21, "_value");
    this[S$1._value$6] = _value;
    this[S$3._unit] = "px";
    ;
  }).prototype = html$.Dimension.prototype;
  (html$.Dimension.pc = function(_value) {
    if (_value == null) dart.nullFailed(I[166], 36952, 21, "_value");
    this[S$1._value$6] = _value;
    this[S$3._unit] = "pc";
    ;
  }).prototype = html$.Dimension.prototype;
  (html$.Dimension.pt = function(_value) {
    if (_value == null) dart.nullFailed(I[166], 36955, 21, "_value");
    this[S$1._value$6] = _value;
    this[S$3._unit] = "pt";
    ;
  }).prototype = html$.Dimension.prototype;
  (html$.Dimension.inch = function(_value) {
    if (_value == null) dart.nullFailed(I[166], 36958, 23, "_value");
    this[S$1._value$6] = _value;
    this[S$3._unit] = "in";
    ;
  }).prototype = html$.Dimension.prototype;
  (html$.Dimension.cm = function(_value) {
    if (_value == null) dart.nullFailed(I[166], 36961, 21, "_value");
    this[S$1._value$6] = _value;
    this[S$3._unit] = "cm";
    ;
  }).prototype = html$.Dimension.prototype;
  (html$.Dimension.mm = function(_value) {
    if (_value == null) dart.nullFailed(I[166], 36964, 21, "_value");
    this[S$1._value$6] = _value;
    this[S$3._unit] = "mm";
    ;
  }).prototype = html$.Dimension.prototype;
  (html$.Dimension.em = function(_value) {
    if (_value == null) dart.nullFailed(I[166], 36973, 21, "_value");
    this[S$1._value$6] = _value;
    this[S$3._unit] = "em";
    ;
  }).prototype = html$.Dimension.prototype;
  (html$.Dimension.ex = function(_value) {
    if (_value == null) dart.nullFailed(I[166], 36982, 21, "_value");
    this[S$1._value$6] = _value;
    this[S$3._unit] = "ex";
    ;
  }).prototype = html$.Dimension.prototype;
  (html$.Dimension.css = function(cssValue) {
    if (cssValue == null) dart.nullFailed(I[166], 36993, 24, "cssValue");
    this[S$3._unit] = "";
    this[S$1._value$6] = 0;
    if (cssValue === "") cssValue = "0px";
    if (cssValue[$endsWith]("%")) {
      this[S$3._unit] = "%";
    } else {
      this[S$3._unit] = cssValue[$substring](cssValue.length - 2);
    }
    if (cssValue[$contains](".")) {
      this[S$1._value$6] = core.double.parse(cssValue[$substring](0, cssValue.length - this[S$3._unit].length));
    } else {
      this[S$1._value$6] = core.int.parse(cssValue[$substring](0, cssValue.length - this[S$3._unit].length));
    }
  }).prototype = html$.Dimension.prototype;
  dart.addRtiResources(html$.Dimension, ["html|Dimension"]);
  dart.setGetterSignature(html$.Dimension, () => dart.global.Object.setPrototypeOf({value: T$.num()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Dimension))));
  dart.setLibraryUri(html$.Dimension, I[167]);
  dart.setFieldSignature(html$.Dimension, () => dart.global.Object.setPrototypeOf({
    [S$1._value$6]: {type: T$.num(), isConst: false, isFinal: false, libraryUri: I[11]},
    [S$3._unit]: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$.Dimension))));
  dart.defineExtensionMethods(html$.Dimension, ['toString']);
  html$.EventStreamProvider$ = dart.generic(T => {
    var __t$EventStreamProviderOfT = () => (__t$EventStreamProviderOfT = dart.constFn(T[_eval]("html|EventStreamProvider<0>")))();
    var __t$EventTargetN__ToStreamOfT = () => (__t$EventTargetN__ToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(html|EventTarget?{useCapture:core|bool})")))();
    var __t$Element__ToElementStreamOfT = () => (__t$Element__ToElementStreamOfT = dart.constFn(T[_eval]("html|ElementStream<0>(html|Element{useCapture:core|bool})")))();
    var __t$ElementListOfElement__ToElementStreamOfT = () => (__t$ElementListOfElement__ToElementStreamOfT = dart.constFn(T[_eval]("html|ElementStream<0>(html|ElementList<html|Element>{useCapture:core|bool})")))();
    var __t$_EventStreamOfT = () => (__t$_EventStreamOfT = dart.constFn(html$._EventStream$(T)))();
    var __t$_ElementEventStreamImplOfT = () => (__t$_ElementEventStreamImplOfT = dart.constFn(html$._ElementEventStreamImpl$(T)))();
    var __t$_ElementListEventStreamImplOfT = () => (__t$_ElementListEventStreamImplOfT = dart.constFn(html$._ElementListEventStreamImpl$(T)))();
    class EventStreamProvider extends core.Object {
      get [S$3._eventType$1]() {
        return this[S$3._eventType];
      }
      set [S$3._eventType$1](value) {
        super[S$3._eventType$1] = value;
      }
      static ['_#new#tearOff'](T, _eventType) {
        if (_eventType == null) dart.nullFailed(I[166], 37033, 34, "_eventType");
        return new (html$.EventStreamProvider$(T)).new(_eventType);
      }
      forTarget(e, opts) {
        let useCapture = opts && 'useCapture' in opts ? opts.useCapture : false;
        if (useCapture == null) dart.nullFailed(I[166], 37057, 45, "useCapture");
        return new (__t$_EventStreamOfT()).new(e, this[S$3._eventType$1], useCapture);
      }
      forElement(e, opts) {
        if (e == null) dart.nullFailed(I[166], 37082, 39, "e");
        let useCapture = opts && 'useCapture' in opts ? opts.useCapture : false;
        if (useCapture == null) dart.nullFailed(I[166], 37082, 48, "useCapture");
        return new (__t$_ElementEventStreamImplOfT()).new(e, this[S$3._eventType$1], useCapture);
      }
      [S$1._forElementList](e, opts) {
        if (e == null) dart.nullFailed(I[166], 37101, 57, "e");
        let useCapture = opts && 'useCapture' in opts ? opts.useCapture : false;
        if (useCapture == null) dart.nullFailed(I[166], 37102, 13, "useCapture");
        return new (__t$_ElementListEventStreamImplOfT()).new(e, this[S$3._eventType$1], useCapture);
      }
      getEventType(target) {
        if (target == null) dart.nullFailed(I[166], 37113, 35, "target");
        return this[S$3._eventType$1];
      }
    }
    (EventStreamProvider.new = function(_eventType) {
      if (_eventType == null) dart.nullFailed(I[166], 37033, 34, "_eventType");
      this[S$3._eventType] = _eventType;
      this.$ti = this.$ti || __t$EventStreamProviderOfT();
      ;
    }).prototype = EventStreamProvider.prototype;
    dart.addRtiResources(EventStreamProvider, ["html|EventStreamProvider"]);
    dart.setMethodSignature(EventStreamProvider, () => dart.global.Object.setPrototypeOf({
      forTarget: __t$EventTargetN__ToStreamOfT(),
      forElement: __t$Element__ToElementStreamOfT(),
      [S$1._forElementList]: __t$ElementListOfElement__ToElementStreamOfT(),
      getEventType: T$3.EventTargetToString()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(EventStreamProvider))));
    dart.setLibraryUri(EventStreamProvider, I[167]);
    dart.setFieldSignature(EventStreamProvider, () => dart.global.Object.setPrototypeOf({[S$3._eventType$1]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(EventStreamProvider))));
    return EventStreamProvider;
  });
  html$.EventStreamProvider = html$.EventStreamProvider$();
  html$.ElementStream$ = dart.generic(T => {
    var __t$ElementStreamOfT = () => (__t$ElementStreamOfT = dart.constFn(T[_eval]("html|ElementStream<0>")))();
    class ElementStream extends core.Object {}
    (ElementStream.new = function() {
      this.$ti = this.$ti || __t$ElementStreamOfT();
      ;
    }).prototype = ElementStream.prototype;
    dart.addRtiResources(ElementStream, ["html|ElementStream", "async|Stream"]);
    dart.setLibraryUri(ElementStream, I[167]);
    return ElementStream;
  });
  html$.ElementStream = html$.ElementStream$();
  html$._EventStream$ = dart.generic(T => {
    var __t$_EventStreamOfT = () => (__t$_EventStreamOfT = dart.constFn(T[_eval]("html|_EventStream<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$_EventStreamSubscriptionOfT = () => (__t$_EventStreamSubscriptionOfT = dart.constFn(html$._EventStreamSubscription$(T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _EventStream extends __t$StreamOfT() {
      static ['_#new#tearOff'](T, _target, _eventType, _useCapture) {
        if (_eventType == null) dart.nullFailed(I[166], 37153, 35, "_eventType");
        if (_useCapture == null) dart.nullFailed(I[166], 37153, 52, "_useCapture");
        return new (html$._EventStream$(T)).new(_target, _eventType, _useCapture);
      }
      asBroadcastStream(opts) {
        let onListen = opts && 'onListen' in opts ? opts.onListen : null;
        let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
        return this;
      }
      get isBroadcast() {
        return true;
      }
      listen(onData, opts) {
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        return new (__t$_EventStreamSubscriptionOfT()).new(this[S$3._target$2], this[S$3._eventType$1], onData, this[S$3._useCapture]);
      }
    }
    (_EventStream.new = function(_target, _eventType, _useCapture) {
      if (_eventType == null) dart.nullFailed(I[166], 37153, 35, "_eventType");
      if (_useCapture == null) dart.nullFailed(I[166], 37153, 52, "_useCapture");
      this[S$3._target$2] = _target;
      this[S$3._eventType$1] = _eventType;
      this[S$3._useCapture] = _useCapture;
      this.$ti = this.$ti || __t$_EventStreamOfT();
      dart.global.Object.getPrototypeOf(_EventStream).new.call(this);
      ;
    }).prototype = _EventStream.prototype;
    dart.addRtiResources(_EventStream, ["html|_EventStream"]);
    dart.setMethodSignature(_EventStream, () => dart.global.Object.setPrototypeOf({listen: __t$Fn__ToStreamSubscriptionOfT()}, dart.getMethods(dart.global.Object.getPrototypeOf(_EventStream))));
    dart.setLibraryUri(_EventStream, I[167]);
    dart.setFieldSignature(_EventStream, () => dart.global.Object.setPrototypeOf({
      [S$3._target$2]: {type: T$3.EventTargetN(), isConst: false, isFinal: true, libraryUri: I[167]},
      [S$3._eventType$1]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
      [S$3._useCapture]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_EventStream))));
    return _EventStream;
  });
  html$._EventStream = html$._EventStream$();
  html$._ElementEventStreamImpl$ = dart.generic(T => {
    var __t$_ElementEventStreamImplOfT = () => (__t$_ElementEventStreamImplOfT = dart.constFn(T[_eval]("html|_ElementEventStreamImpl<0>")))();
    var __t$TTobool = () => (__t$TTobool = dart.constFn(T[_eval]("core|bool(0)")))();
    var __t$TToT = () => (__t$TToT = dart.constFn(T[_eval]("0(0)")))();
    var __t$StringToStreamOfT = () => (__t$StringToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|String)")))();
    var __t$FnToStreamSubscriptionOfT = () => (__t$FnToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0))")))();
    var __t$_EventStreamSubscriptionOfT = () => (__t$_EventStreamSubscriptionOfT = dart.constFn(html$._EventStreamSubscription$(T)))();
    var __t$_EventStreamOfT = () => (__t$_EventStreamOfT = dart.constFn(html$._EventStream$(T)))();
    class _ElementEventStreamImpl extends __t$_EventStreamOfT() {
      static ['_#new#tearOff'](T, target, eventType, useCapture) {
        return new (html$._ElementEventStreamImpl$(T)).new(target, eventType, useCapture);
      }
      matches(selector) {
        if (selector == null) dart.nullFailed(I[166], 37186, 28, "selector");
        return this.where(dart.fn(event => {
          if (event == null) dart.nullFailed(I[166], 37187, 19, "event");
          return html$._matchesWithAncestors(event, selector);
        }, __t$TTobool())).map(T, dart.fn(e => {
          if (e == null) dart.nullFailed(I[166], 37187, 74, "e");
          e[S._selector] = selector;
          return e;
        }, __t$TToT()));
      }
      capture(onData) {
        if (onData == null) dart.nullFailed(I[166], 37192, 38, "onData");
        return new (__t$_EventStreamSubscriptionOfT()).new(this[S$3._target$2], this[S$3._eventType$1], onData, true);
      }
    }
    (_ElementEventStreamImpl.new = function(target, eventType, useCapture) {
      this.$ti = this.$ti || __t$_ElementEventStreamImplOfT();
      dart.global.Object.getPrototypeOf(_ElementEventStreamImpl).new.call(this, T$3.EventTargetN()[_as](target), T$.String()[_as](eventType), T$.bool()[_as](useCapture));
      ;
    }).prototype = _ElementEventStreamImpl.prototype;
    dart.addRtiResources(_ElementEventStreamImpl, ["html|_ElementEventStreamImpl", "html|ElementStream", "async|Stream"]);
    dart.setMethodSignature(_ElementEventStreamImpl, () => dart.global.Object.setPrototypeOf({
      matches: __t$StringToStreamOfT(),
      capture: __t$FnToStreamSubscriptionOfT()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_ElementEventStreamImpl))));
    dart.setLibraryUri(_ElementEventStreamImpl, I[167]);
    return _ElementEventStreamImpl;
  });
  html$._ElementEventStreamImpl = html$._ElementEventStreamImpl$();
  html$._ElementListEventStreamImpl$ = dart.generic(T => {
    var __t$_ElementListEventStreamImplOfT = () => (__t$_ElementListEventStreamImplOfT = dart.constFn(T[_eval]("html|_ElementListEventStreamImpl<0>")))();
    var __t$TTobool = () => (__t$TTobool = dart.constFn(T[_eval]("core|bool(0)")))();
    var __t$TToT = () => (__t$TToT = dart.constFn(T[_eval]("0(0)")))();
    var __t$StringToStreamOfT = () => (__t$StringToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(core|String)")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$FnToStreamSubscriptionOfT = () => (__t$FnToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0))")))();
    var __t$_StreamPoolOfT = () => (__t$_StreamPoolOfT = dart.constFn(html$._StreamPool$(T)))();
    var __t$_EventStreamOfT = () => (__t$_EventStreamOfT = dart.constFn(html$._EventStream$(T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _ElementListEventStreamImpl extends __t$StreamOfT() {
      static ['_#new#tearOff'](T, _targetList, _eventType, _useCapture) {
        if (_targetList == null) dart.nullFailed(I[166], 37208, 12, "_targetList");
        if (_eventType == null) dart.nullFailed(I[166], 37208, 30, "_eventType");
        if (_useCapture == null) dart.nullFailed(I[166], 37208, 47, "_useCapture");
        return new (html$._ElementListEventStreamImpl$(T)).new(_targetList, _eventType, _useCapture);
      }
      matches(selector) {
        if (selector == null) dart.nullFailed(I[166], 37210, 28, "selector");
        return this.where(dart.fn(event => {
          if (event == null) dart.nullFailed(I[166], 37211, 19, "event");
          return html$._matchesWithAncestors(event, selector);
        }, __t$TTobool())).map(T, dart.fn(e => {
          if (e == null) dart.nullFailed(I[166], 37211, 74, "e");
          e[S._selector] = selector;
          return e;
        }, __t$TToT()));
      }
      listen(onData, opts) {
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        let pool = new (__t$_StreamPoolOfT()).broadcast();
        for (let target of this[S$3._targetList]) {
          pool.add(new (__t$_EventStreamOfT()).new(target, this[S$3._eventType$1], this[S$3._useCapture]));
        }
        return pool.stream.listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
      }
      capture(onData) {
        if (onData == null) dart.nullFailed(I[166], 37227, 38, "onData");
        let pool = new (__t$_StreamPoolOfT()).broadcast();
        for (let target of this[S$3._targetList]) {
          pool.add(new (__t$_EventStreamOfT()).new(target, this[S$3._eventType$1], true));
        }
        return pool.stream.listen(onData);
      }
      asBroadcastStream(opts) {
        let onListen = opts && 'onListen' in opts ? opts.onListen : null;
        let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
        return this;
      }
      get isBroadcast() {
        return true;
      }
    }
    (_ElementListEventStreamImpl.new = function(_targetList, _eventType, _useCapture) {
      if (_targetList == null) dart.nullFailed(I[166], 37208, 12, "_targetList");
      if (_eventType == null) dart.nullFailed(I[166], 37208, 30, "_eventType");
      if (_useCapture == null) dart.nullFailed(I[166], 37208, 47, "_useCapture");
      this[S$3._targetList] = _targetList;
      this[S$3._eventType$1] = _eventType;
      this[S$3._useCapture] = _useCapture;
      this.$ti = this.$ti || __t$_ElementListEventStreamImplOfT();
      dart.global.Object.getPrototypeOf(_ElementListEventStreamImpl).new.call(this);
      ;
    }).prototype = _ElementListEventStreamImpl.prototype;
    dart.addRtiResources(_ElementListEventStreamImpl, ["html|_ElementListEventStreamImpl", "html|ElementStream", "async|Stream"]);
    dart.setMethodSignature(_ElementListEventStreamImpl, () => dart.global.Object.setPrototypeOf({
      matches: __t$StringToStreamOfT(),
      listen: __t$Fn__ToStreamSubscriptionOfT(),
      capture: __t$FnToStreamSubscriptionOfT()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_ElementListEventStreamImpl))));
    dart.setLibraryUri(_ElementListEventStreamImpl, I[167]);
    dart.setFieldSignature(_ElementListEventStreamImpl, () => dart.global.Object.setPrototypeOf({
      [S$3._targetList]: {type: T$4.IterableOfElement(), isConst: false, isFinal: true, libraryUri: I[11]},
      [S$3._useCapture]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
      [S$3._eventType$1]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_ElementListEventStreamImpl))));
    return _ElementListEventStreamImpl;
  });
  html$._ElementListEventStreamImpl = html$._ElementListEventStreamImpl$();
  html$._EventStreamSubscription$ = dart.generic(T => {
    var __t$_EventStreamSubscriptionOfT = () => (__t$_EventStreamSubscriptionOfT = dart.constFn(T[_eval]("html|_EventStreamSubscription<0>")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(T[_eval]("~(~(0)?)")))();
    class _EventStreamSubscription extends core.Object {
      static ['_#new#tearOff'](T, _target, _eventType, onData, _useCapture) {
        if (_eventType == null) dart.nullFailed(I[166], 37251, 26, "_eventType");
        if (_useCapture == null) dart.nullFailed(I[166], 37251, 66, "_useCapture");
        return new (html$._EventStreamSubscription$(T)).new(_target, _eventType, onData, _useCapture);
      }
      cancel() {
        if (dart.test(this[S$3._canceled])) return _internal.nullFuture;
        this[S$3._unlisten]();
        this[S$3._target$2] = null;
        this[S$3._onData$3] = null;
        return _internal.nullFuture;
      }
      get [S$3._canceled]() {
        return this[S$3._target$2] == null;
      }
      onData(handleData) {
        if (dart.test(this[S$3._canceled])) {
          dart.throw(new core.StateError.new("Subscription has been canceled."));
        }
        this[S$3._unlisten]();
        this[S$3._onData$3] = handleData == null ? null : html$._wrapZone(T$5.Event(), dart.fn(e => {
          if (e == null) dart.nullFailed(I[166], 37284, 29, "e");
          return dart.dcall(handleData, [e]);
        }, T$3.EventTovoid()));
        this[S$3._tryResume]();
      }
      onError(handleError) {
      }
      onDone(handleDone) {
      }
      pause(resumeSignal = null) {
        if (dart.test(this[S$3._canceled])) return;
        this[S$3._pauseCount$1] = dart.notNull(this[S$3._pauseCount$1]) + 1;
        this[S$3._unlisten]();
        if (resumeSignal != null) {
          resumeSignal.whenComplete(dart.bind(this, 'resume'));
        }
      }
      get isPaused() {
        return dart.notNull(this[S$3._pauseCount$1]) > 0;
      }
      resume() {
        if (dart.test(this[S$3._canceled]) || !dart.test(this.isPaused)) return;
        this[S$3._pauseCount$1] = dart.notNull(this[S$3._pauseCount$1]) - 1;
        this[S$3._tryResume]();
      }
      [S$3._tryResume]() {
        if (this[S$3._onData$3] != null && !dart.test(this.isPaused)) {
          dart.nullCheck(this[S$3._target$2])[S.$addEventListener](this[S$3._eventType$1], this[S$3._onData$3], this[S$3._useCapture]);
        }
      }
      [S$3._unlisten]() {
        if (this[S$3._onData$3] != null) {
          dart.nullCheck(this[S$3._target$2])[S.$removeEventListener](this[S$3._eventType$1], this[S$3._onData$3], this[S$3._useCapture]);
        }
      }
      asFuture(E, futureValue = null) {
        let completer = async.Completer$(E).new();
        return completer.future;
      }
    }
    (_EventStreamSubscription.new = function(_target, _eventType, onData, _useCapture) {
      if (_eventType == null) dart.nullFailed(I[166], 37251, 26, "_eventType");
      if (_useCapture == null) dart.nullFailed(I[166], 37251, 66, "_useCapture");
      this[S$3._pauseCount$1] = 0;
      this[S$3._target$2] = _target;
      this[S$3._eventType$1] = _eventType;
      this[S$3._useCapture] = _useCapture;
      this[S$3._onData$3] = onData == null ? null : html$._wrapZone(T$5.Event(), dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 37257, 33, "e");
        return dart.dcall(onData, [e]);
      }, T$3.EventTovoid()));
      this.$ti = this.$ti || __t$_EventStreamSubscriptionOfT();
      this[S$3._tryResume]();
    }).prototype = _EventStreamSubscription.prototype;
    dart.addRtiResources(_EventStreamSubscription, ["html|_EventStreamSubscription", "async|StreamSubscription"]);
    dart.setMethodSignature(_EventStreamSubscription, () => dart.global.Object.setPrototypeOf({
      cancel: T$.VoidToFuture(),
      onData: __t$FnTovoid(),
      onError: T$.FunctionNTovoid(),
      onDone: T$.FnTovoid$9(),
      pause: T$.FutureNTovoid(),
      resume: T$.VoidTovoid(),
      [S$3._tryResume]: T$.VoidTovoid(),
      [S$3._unlisten]: T$.VoidTovoid(),
      asFuture: T$.ENToFutureOfE()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_EventStreamSubscription))));
    dart.setMethodsDefaultTypeArgSignature(_EventStreamSubscription, () => dart.global.Object.setPrototypeOf({asFuture: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_EventStreamSubscription))));
    dart.setGetterSignature(_EventStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [S$3._canceled]: T$.bool(),
      isPaused: T$.bool()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_EventStreamSubscription))));
    dart.setLibraryUri(_EventStreamSubscription, I[167]);
    dart.setFieldSignature(_EventStreamSubscription, () => dart.global.Object.setPrototypeOf({
      [S$3._pauseCount$1]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [S$3._target$2]: {type: T$3.EventTargetN(), isConst: false, isFinal: false, libraryUri: I[167]},
      [S$3._eventType$1]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
      [S$3._onData$3]: {type: T$6.EventToNdynamic(), isConst: false, isFinal: false},
      [S$3._useCapture]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_EventStreamSubscription))));
    return _EventStreamSubscription;
  });
  html$._EventStreamSubscription = html$._EventStreamSubscription$();
  html$.CustomStream$ = dart.generic(T => {
    var __t$CustomStreamOfT = () => (__t$CustomStreamOfT = dart.constFn(T[_eval]("html|CustomStream<0>")))();
    class CustomStream extends core.Object {}
    (CustomStream.new = function() {
      this.$ti = this.$ti || __t$CustomStreamOfT();
      ;
    }).prototype = CustomStream.prototype;
    dart.addRtiResources(CustomStream, ["html|CustomStream", "async|Stream"]);
    dart.setLibraryUri(CustomStream, I[167]);
    return CustomStream;
  });
  html$.CustomStream = html$.CustomStream$();
  html$._CustomEventStreamImpl$ = dart.generic(T => {
    var __t$_CustomEventStreamImplOfT = () => (__t$_CustomEventStreamImplOfT = dart.constFn(T[_eval]("html|_CustomEventStreamImpl<0>")))();
    var __t$Fn__ToStreamSubscriptionOfT = () => (__t$Fn__ToStreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>(~(0)?{cancelOnError:core|bool?,onDone:~()?,onError:core|Function?})")))();
    var __t$StreamControllerOfT = () => (__t$StreamControllerOfT = dart.constFn(T[_eval]("async|StreamController<0>")))();
    var __t$StreamControllerOfT$ = () => (__t$StreamControllerOfT$ = dart.constFn(async.StreamController$(T)))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(async.Stream$(T)))();
    class _CustomEventStreamImpl extends __t$StreamOfT() {
      static ['_#new#tearOff'](T, type) {
        if (type == null) dart.nullFailed(I[166], 37349, 33, "type");
        return new (html$._CustomEventStreamImpl$(T)).new(type);
      }
      listen(onData, opts) {
        let onError = opts && 'onError' in opts ? opts.onError : null;
        let onDone = opts && 'onDone' in opts ? opts.onDone : null;
        let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
        return this[S$3._streamController].stream.listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
      }
      asBroadcastStream(opts) {
        let onListen = opts && 'onListen' in opts ? opts.onListen : null;
        let onCancel = opts && 'onCancel' in opts ? opts.onCancel : null;
        return this[S$3._streamController].stream;
      }
      get isBroadcast() {
        return true;
      }
      add(event) {
        T[_as](event);
        if (event == null) dart.nullFailed(I[166], 37367, 14, "event");
        if (event.type == this[S$3._type$4]) this[S$3._streamController].add(event);
      }
    }
    (_CustomEventStreamImpl.new = function(type) {
      if (type == null) dart.nullFailed(I[166], 37349, 33, "type");
      this[S$3._type$4] = type;
      this[S$3._streamController] = __t$StreamControllerOfT$().broadcast({sync: true});
      this.$ti = this.$ti || __t$_CustomEventStreamImplOfT();
      dart.global.Object.getPrototypeOf(_CustomEventStreamImpl).new.call(this);
      ;
    }).prototype = _CustomEventStreamImpl.prototype;
    dart.addRtiResources(_CustomEventStreamImpl, ["html|_CustomEventStreamImpl", "html|CustomStream", "async|Stream"]);
    dart.setMethodSignature(_CustomEventStreamImpl, () => dart.global.Object.setPrototypeOf({
      listen: __t$Fn__ToStreamSubscriptionOfT(),
      add: T$.ObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_CustomEventStreamImpl))));
    dart.setLibraryUri(_CustomEventStreamImpl, I[167]);
    dart.setFieldSignature(_CustomEventStreamImpl, () => dart.global.Object.setPrototypeOf({
      [S$3._streamController]: {type: __t$StreamControllerOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [S$3._type$4]: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_CustomEventStreamImpl))));
    return _CustomEventStreamImpl;
  });
  html$._CustomEventStreamImpl = html$._CustomEventStreamImpl$();
  html$._CustomKeyEventStreamImpl = class _CustomKeyEventStreamImpl extends G$._CustomEventStreamImplOfKeyEvent() {
    static ['_#new#tearOff'](type) {
      if (type == null) dart.nullFailed(I[166], 37374, 36, "type");
      return new html$._CustomKeyEventStreamImpl.new(type);
    }
    add(event) {
      T$6.KeyEvent()[_as](event);
      if (event == null) dart.nullFailed(I[166], 37376, 21, "event");
      if (event.type == this[S$3._type$4]) {
        dart.nullCheck(event.currentTarget).dispatchEvent(event[S$3._parent$2]);
        this[S$3._streamController].add(event);
      }
    }
  };
  (html$._CustomKeyEventStreamImpl.new = function(type) {
    if (type == null) dart.nullFailed(I[166], 37374, 36, "type");
    this.$ti = this.$ti || T$6._CustomKeyEventStreamImpl();
    dart.global.Object.getPrototypeOf(html$._CustomKeyEventStreamImpl).new.call(this, type);
    ;
  }).prototype = html$._CustomKeyEventStreamImpl.prototype;
  dart.addRtiResources(html$._CustomKeyEventStreamImpl, ["html|_CustomKeyEventStreamImpl", "html|CustomStream", "async|Stream"]);
  dart.setLibraryUri(html$._CustomKeyEventStreamImpl, I[167]);
  html$._StreamPool$ = dart.generic(T => {
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$StreamSubscriptionOfT = () => (__t$StreamSubscriptionOfT = dart.constFn(T[_eval]("async|StreamSubscription<0>")))();
    var __t$_StreamPoolOfT = () => (__t$_StreamPoolOfT = dart.constFn(T[_eval]("html|_StreamPool<0>")))();
    var __t$TTovoid = () => (__t$TTovoid = dart.constFn(T[_eval]("~(0)")))();
    var __t$StreamControllerNOfT = () => (__t$StreamControllerNOfT = dart.constFn(T[_eval]("async|StreamController<0>?")))();
    var __t$MapOfStreamOfT$StreamSubscriptionOfT = () => (__t$MapOfStreamOfT$StreamSubscriptionOfT = dart.constFn(T[_eval]("core|Map<async|Stream<0>,async|StreamSubscription<0>>")))();
    var __t$LinkedMapOfStreamOfT$StreamSubscriptionOfT = () => (__t$LinkedMapOfStreamOfT$StreamSubscriptionOfT = dart.constFn(_js_helper.LinkedMap$(__t$StreamOfT(), __t$StreamSubscriptionOfT())))();
    var __t$StreamControllerOfT = () => (__t$StreamControllerOfT = dart.constFn(async.StreamController$(T)))();
    class _StreamPool extends core.Object {
      static ['_#broadcast#tearOff'](T) {
        return new (html$._StreamPool$(T)).broadcast();
      }
      get stream() {
        return dart.nullCheck(this[S$3._controller$2]).stream;
      }
      add(stream) {
        __t$StreamOfT()[_as](stream);
        if (stream == null) dart.nullFailed(I[166], 37419, 22, "stream");
        if (dart.test(this[S$3._subscriptions][$containsKey](stream))) return;
        this[S$3._subscriptions][$_set](stream, stream.listen(__t$TTovoid()[_as](dart.bind(dart.nullCheck(this[S$3._controller$2]), 'add')), {onError: dart.bind(dart.nullCheck(this[S$3._controller$2]), 'addError'), onDone: dart.fn(() => this.remove(stream), T$.VoidTovoid())}));
      }
      remove(stream) {
        __t$StreamOfT()[_as](stream);
        if (stream == null) dart.nullFailed(I[166], 37426, 25, "stream");
        let subscription = this[S$3._subscriptions][$remove](stream);
        if (subscription != null) subscription.cancel();
      }
      close() {
        for (let subscription of this[S$3._subscriptions][$values]) {
          subscription.cancel();
        }
        this[S$3._subscriptions][$clear]();
        dart.nullCheck(this[S$3._controller$2]).close();
      }
    }
    (_StreamPool.broadcast = function() {
      this[S$3._controller$2] = null;
      this[S$3._subscriptions] = new (__t$LinkedMapOfStreamOfT$StreamSubscriptionOfT()).new();
      this.$ti = this.$ti || __t$_StreamPoolOfT();
      this[S$3._controller$2] = __t$StreamControllerOfT().broadcast({sync: true, onCancel: dart.bind(this, 'close')});
    }).prototype = _StreamPool.prototype;
    dart.addRtiResources(_StreamPool, ["html|_StreamPool"]);
    dart.setMethodSignature(_StreamPool, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      remove: T$.ObjectNTovoid(),
      close: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamPool))));
    dart.setGetterSignature(_StreamPool, () => dart.global.Object.setPrototypeOf({stream: __t$StreamOfT()}, dart.getGetters(dart.global.Object.getPrototypeOf(_StreamPool))));
    dart.setLibraryUri(_StreamPool, I[167]);
    dart.setFieldSignature(_StreamPool, () => dart.global.Object.setPrototypeOf({
      [S$3._controller$2]: {type: __t$StreamControllerNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [S$3._subscriptions]: {type: __t$MapOfStreamOfT$StreamSubscriptionOfT(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_StreamPool))));
    return _StreamPool;
  });
  html$._StreamPool = html$._StreamPool$();
  html$._CustomEventStreamProvider$ = dart.generic(T => {
    var __t$_CustomEventStreamProviderOfT = () => (__t$_CustomEventStreamProviderOfT = dart.constFn(T[_eval]("html|_CustomEventStreamProvider<0>")))();
    var __t$EventTargetN__ToStreamOfT = () => (__t$EventTargetN__ToStreamOfT = dart.constFn(T[_eval]("async|Stream<0>(html|EventTarget?{useCapture:core|bool})")))();
    var __t$Element__ToElementStreamOfT = () => (__t$Element__ToElementStreamOfT = dart.constFn(T[_eval]("html|ElementStream<0>(html|Element{useCapture:core|bool})")))();
    var __t$ElementListOfElement__ToElementStreamOfT = () => (__t$ElementListOfElement__ToElementStreamOfT = dart.constFn(T[_eval]("html|ElementStream<0>(html|ElementList<html|Element>{useCapture:core|bool})")))();
    var __t$_EventStreamOfT = () => (__t$_EventStreamOfT = dart.constFn(html$._EventStream$(T)))();
    var __t$_ElementEventStreamImplOfT = () => (__t$_ElementEventStreamImplOfT = dart.constFn(html$._ElementEventStreamImpl$(T)))();
    var __t$_ElementListEventStreamImplOfT = () => (__t$_ElementListEventStreamImplOfT = dart.constFn(html$._ElementListEventStreamImpl$(T)))();
    class _CustomEventStreamProvider extends core.Object {
      get [S$3._eventTypeGetter$1]() {
        return this[S$3._eventTypeGetter];
      }
      set [S$3._eventTypeGetter$1](value) {
        super[S$3._eventTypeGetter$1] = value;
      }
      static ['_#new#tearOff'](T, _eventTypeGetter) {
        return new (html$._CustomEventStreamProvider$(T)).new(_eventTypeGetter);
      }
      forTarget(e, opts) {
        let t$36372;
        let useCapture = opts && 'useCapture' in opts ? opts.useCapture : false;
        if (useCapture == null) dart.nullFailed(I[166], 37450, 45, "useCapture");
        return new (__t$_EventStreamOfT()).new(e, T$.String()[_as]((t$36372 = e, dart.dsend(this, S$3._eventTypeGetter$1, [t$36372]))), useCapture);
      }
      forElement(e, opts) {
        let t$36372;
        if (e == null) dart.nullFailed(I[166], 37454, 39, "e");
        let useCapture = opts && 'useCapture' in opts ? opts.useCapture : false;
        if (useCapture == null) dart.nullFailed(I[166], 37454, 48, "useCapture");
        return new (__t$_ElementEventStreamImplOfT()).new(e, (t$36372 = e, dart.dsend(this, S$3._eventTypeGetter$1, [t$36372])), useCapture);
      }
      [S$1._forElementList](e, opts) {
        let t$36372;
        if (e == null) dart.nullFailed(I[166], 37458, 57, "e");
        let useCapture = opts && 'useCapture' in opts ? opts.useCapture : false;
        if (useCapture == null) dart.nullFailed(I[166], 37459, 13, "useCapture");
        return new (__t$_ElementListEventStreamImplOfT()).new(e, T$.String()[_as]((t$36372 = e, dart.dsend(this, S$3._eventTypeGetter$1, [t$36372]))), useCapture);
      }
      getEventType(target) {
        let t$36372;
        if (target == null) dart.nullFailed(I[166], 37464, 35, "target");
        return T$.String()[_as]((t$36372 = target, dart.dsend(this, S$3._eventTypeGetter$1, [t$36372])));
      }
      get [S$3._eventType$1]() {
        return dart.throw(new core.UnsupportedError.new("Access type through getEventType method."));
      }
    }
    (_CustomEventStreamProvider.new = function(_eventTypeGetter) {
      this[S$3._eventTypeGetter] = _eventTypeGetter;
      this.$ti = this.$ti || __t$_CustomEventStreamProviderOfT();
      ;
    }).prototype = _CustomEventStreamProvider.prototype;
    dart.addRtiResources(_CustomEventStreamProvider, ["html|_CustomEventStreamProvider", "html|EventStreamProvider"]);
    dart.setMethodSignature(_CustomEventStreamProvider, () => dart.global.Object.setPrototypeOf({
      forTarget: __t$EventTargetN__ToStreamOfT(),
      forElement: __t$Element__ToElementStreamOfT(),
      [S$1._forElementList]: __t$ElementListOfElement__ToElementStreamOfT(),
      getEventType: T$3.EventTargetToString()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_CustomEventStreamProvider))));
    dart.setGetterSignature(_CustomEventStreamProvider, () => dart.global.Object.setPrototypeOf({[S$3._eventType$1]: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_CustomEventStreamProvider))));
    dart.setLibraryUri(_CustomEventStreamProvider, I[167]);
    dart.setFieldSignature(_CustomEventStreamProvider, () => dart.global.Object.setPrototypeOf({[S$3._eventTypeGetter$1]: {type: T$.dynamic(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_CustomEventStreamProvider))));
    return _CustomEventStreamProvider;
  });
  html$._CustomEventStreamProvider = html$._CustomEventStreamProvider$();
  html$._Html5NodeValidator = class _Html5NodeValidator extends core.Object {
    static ['_#new#tearOff'](opts) {
      let uriPolicy = opts && 'uriPolicy' in opts ? opts.uriPolicy : null;
      return new html$._Html5NodeValidator.new({uriPolicy: uriPolicy});
    }
    allowsElement(element) {
      if (element == null) dart.nullFailed(I[166], 37892, 30, "element");
      return html$._Html5NodeValidator._allowedElements.contains(html$.Element._safeTagName(element));
    }
    allowsAttribute(element, attributeName, value) {
      if (element == null) dart.nullFailed(I[166], 37896, 32, "element");
      if (attributeName == null) dart.nullFailed(I[166], 37896, 48, "attributeName");
      if (value == null) dart.nullFailed(I[166], 37896, 70, "value");
      let tagName = html$.Element._safeTagName(element);
      let validator = html$._Html5NodeValidator._attributeValidators[$_get](dart.str(tagName) + "::" + dart.str(attributeName));
      if (validator == null) {
        validator = html$._Html5NodeValidator._attributeValidators[$_get]("*::" + dart.str(attributeName));
      }
      if (validator == null) {
        return false;
      }
      return T$.bool()[_as](dart.dcall(validator, [element, attributeName, value, this]));
    }
    static _standardAttributeValidator(element, attributeName, value, context) {
      if (element == null) dart.nullFailed(I[166], 37908, 51, "element");
      if (attributeName == null) dart.nullFailed(I[166], 37908, 67, "attributeName");
      if (value == null) dart.nullFailed(I[166], 37909, 14, "value");
      if (context == null) dart.nullFailed(I[166], 37909, 41, "context");
      return true;
    }
    static _uriAttributeValidator(element, attributeName, value, context) {
      if (element == null) dart.nullFailed(I[166], 37913, 46, "element");
      if (attributeName == null) dart.nullFailed(I[166], 37913, 62, "attributeName");
      if (value == null) dart.nullFailed(I[166], 37914, 14, "value");
      if (context == null) dart.nullFailed(I[166], 37914, 41, "context");
      return context.uriPolicy.allowsUri(value);
    }
  };
  (html$._Html5NodeValidator.new = function(opts) {
    let t$36372;
    let uriPolicy = opts && 'uriPolicy' in opts ? opts.uriPolicy : null;
    this.uriPolicy = (t$36372 = uriPolicy, t$36372 == null ? html$.UriPolicy.new() : t$36372);
    if (dart.test(html$._Html5NodeValidator._attributeValidators[$isEmpty])) {
      for (let attr of html$._Html5NodeValidator._standardAttributes) {
        html$._Html5NodeValidator._attributeValidators[$_set](attr, C[451] || CT.C451);
      }
      for (let attr of html$._Html5NodeValidator._uriAttributes) {
        html$._Html5NodeValidator._attributeValidators[$_set](attr, C[452] || CT.C452);
      }
    }
  }).prototype = html$._Html5NodeValidator.prototype;
  dart.addRtiResources(html$._Html5NodeValidator, ["html|_Html5NodeValidator", "html|NodeValidator"]);
  dart.setMethodSignature(html$._Html5NodeValidator, () => dart.global.Object.setPrototypeOf({
    allowsElement: T$4.ElementTobool(),
    allowsAttribute: T$6.ElementAndStringAndStringTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._Html5NodeValidator))));
  dart.setStaticMethodSignature(html$._Html5NodeValidator, () => ['_standardAttributeValidator', '_uriAttributeValidator']);
  dart.setLibraryUri(html$._Html5NodeValidator, I[167]);
  dart.setFieldSignature(html$._Html5NodeValidator, () => dart.global.Object.setPrototypeOf({uriPolicy: {type: T$6.UriPolicy(), isConst: false, isFinal: true, libraryUri: I[167]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._Html5NodeValidator))));
  dart.setStaticFieldSignature(html$._Html5NodeValidator, () => ['_allowedElements', '_standardAttributes', '_uriAttributes', '_attributeValidators']);
  dart.defineLazy(html$._Html5NodeValidator, {
    /*html$._Html5NodeValidator._allowedElements*/get _allowedElements() {
      return G$.LinkedHashSetOfString().from(["A", "ABBR", "ACRONYM", "ADDRESS", "AREA", "ARTICLE", "ASIDE", "AUDIO", "B", "BDI", "BDO", "BIG", "BLOCKQUOTE", "BR", "BUTTON", "CANVAS", "CAPTION", "CENTER", "CITE", "CODE", "COL", "COLGROUP", "COMMAND", "DATA", "DATALIST", "DD", "DEL", "DETAILS", "DFN", "DIR", "DIV", "DL", "DT", "EM", "FIELDSET", "FIGCAPTION", "FIGURE", "FONT", "FOOTER", "FORM", "H1", "H2", "H3", "H4", "H5", "H6", "HEADER", "HGROUP", "HR", "I", "IFRAME", "IMG", "INPUT", "INS", "KBD", "LABEL", "LEGEND", "LI", "MAP", "MARK", "MENU", "METER", "NAV", "NOBR", "OL", "OPTGROUP", "OPTION", "OUTPUT", "P", "PRE", "PROGRESS", "Q", "S", "SAMP", "SECTION", "SELECT", "SMALL", "SOURCE", "SPAN", "STRIKE", "STRONG", "SUB", "SUMMARY", "SUP", "TABLE", "TBODY", "TD", "TEXTAREA", "TFOOT", "TH", "THEAD", "TIME", "TR", "TRACK", "TT", "U", "UL", "VAR", "VIDEO", "WBR"]);
    },
    /*html$._Html5NodeValidator._standardAttributes*/get _standardAttributes() {
      return C[453] || CT.C453;
    },
    /*html$._Html5NodeValidator._uriAttributes*/get _uriAttributes() {
      return C[454] || CT.C454;
    },
    /*html$._Html5NodeValidator._attributeValidators*/get _attributeValidators() {
      return new (G$.IdentityMapOfString$Function()).new();
    }
  }, false);
  html$.KeyCode = class KeyCode extends core.Object {
    static isCharacterKey(keyCode) {
      if (keyCode == null) dart.nullFailed(I[166], 38200, 34, "keyCode");
      if (dart.notNull(keyCode) >= 48 && dart.notNull(keyCode) <= 57 || dart.notNull(keyCode) >= 96 && dart.notNull(keyCode) <= 106 || dart.notNull(keyCode) >= 65 && dart.notNull(keyCode) <= 90) {
        return true;
      }
      if (dart.test(html_common.Device.isWebKit) && keyCode === 0) {
        return true;
      }
      return keyCode === 32 || keyCode === 63 || keyCode === 107 || keyCode === 109 || keyCode === 110 || keyCode === 111 || keyCode === 186 || keyCode === 59 || keyCode === 189 || keyCode === 187 || keyCode === 61 || keyCode === 188 || keyCode === 190 || keyCode === 191 || keyCode === 192 || keyCode === 222 || keyCode === 219 || keyCode === 220 || keyCode === 221;
    }
    static _convertKeyCodeToKeyName(keyCode) {
      if (keyCode == null) dart.nullFailed(I[166], 38240, 46, "keyCode");
      switch (keyCode) {
        case 18:
          {
            return "Alt";
          }
        case 8:
          {
            return "Backspace";
          }
        case 20:
          {
            return "CapsLock";
          }
        case 17:
          {
            return "Control";
          }
        case 46:
          {
            return "Del";
          }
        case 40:
          {
            return "Down";
          }
        case 35:
          {
            return "End";
          }
        case 13:
          {
            return "Enter";
          }
        case 27:
          {
            return "Esc";
          }
        case 112:
          {
            return "F1";
          }
        case 113:
          {
            return "F2";
          }
        case 114:
          {
            return "F3";
          }
        case 115:
          {
            return "F4";
          }
        case 116:
          {
            return "F5";
          }
        case 117:
          {
            return "F6";
          }
        case 118:
          {
            return "F7";
          }
        case 119:
          {
            return "F8";
          }
        case 120:
          {
            return "F9";
          }
        case 121:
          {
            return "F10";
          }
        case 122:
          {
            return "F11";
          }
        case 123:
          {
            return "F12";
          }
        case 36:
          {
            return "Home";
          }
        case 45:
          {
            return "Insert";
          }
        case 37:
          {
            return "Left";
          }
        case 91:
          {
            return "Meta";
          }
        case 144:
          {
            return "NumLock";
          }
        case 34:
          {
            return "PageDown";
          }
        case 33:
          {
            return "PageUp";
          }
        case 19:
          {
            return "Pause";
          }
        case 44:
          {
            return "PrintScreen";
          }
        case 39:
          {
            return "Right";
          }
        case 145:
          {
            return "Scroll";
          }
        case 16:
          {
            return "Shift";
          }
        case 32:
          {
            return "Spacebar";
          }
        case 9:
          {
            return "Tab";
          }
        case 38:
          {
            return "Up";
          }
        case 229:
        case 224:
        case 92:
          {
            return "Win";
          }
        default:
          {
            return "Unidentified";
          }
      }
      return "Unidentified";
    }
  };
  (html$.KeyCode.new = function() {
    ;
  }).prototype = html$.KeyCode.prototype;
  dart.addRtiResources(html$.KeyCode, ["html|KeyCode"]);
  dart.setStaticMethodSignature(html$.KeyCode, () => ['isCharacterKey', '_convertKeyCodeToKeyName']);
  dart.setLibraryUri(html$.KeyCode, I[167]);
  dart.setStaticFieldSignature(html$.KeyCode, () => ['WIN_KEY_FF_LINUX', 'MAC_ENTER', 'BACKSPACE', 'TAB', 'NUM_CENTER', 'ENTER', 'SHIFT', 'CTRL', 'ALT', 'PAUSE', 'CAPS_LOCK', 'ESC', 'SPACE', 'PAGE_UP', 'PAGE_DOWN', 'END', 'HOME', 'LEFT', 'UP', 'RIGHT', 'DOWN', 'NUM_NORTH_EAST', 'NUM_SOUTH_EAST', 'NUM_SOUTH_WEST', 'NUM_NORTH_WEST', 'NUM_WEST', 'NUM_NORTH', 'NUM_EAST', 'NUM_SOUTH', 'PRINT_SCREEN', 'INSERT', 'NUM_INSERT', 'DELETE', 'NUM_DELETE', 'ZERO', 'ONE', 'TWO', 'THREE', 'FOUR', 'FIVE', 'SIX', 'SEVEN', 'EIGHT', 'NINE', 'FF_SEMICOLON', 'FF_EQUALS', 'QUESTION_MARK', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'META', 'WIN_KEY_LEFT', 'WIN_KEY_RIGHT', 'CONTEXT_MENU', 'NUM_ZERO', 'NUM_ONE', 'NUM_TWO', 'NUM_THREE', 'NUM_FOUR', 'NUM_FIVE', 'NUM_SIX', 'NUM_SEVEN', 'NUM_EIGHT', 'NUM_NINE', 'NUM_MULTIPLY', 'NUM_PLUS', 'NUM_MINUS', 'NUM_PERIOD', 'NUM_DIVISION', 'F1', 'F2', 'F3', 'F4', 'F5', 'F6', 'F7', 'F8', 'F9', 'F10', 'F11', 'F12', 'NUMLOCK', 'SCROLL_LOCK', 'FIRST_MEDIA_KEY', 'LAST_MEDIA_KEY', 'SEMICOLON', 'DASH', 'EQUALS', 'COMMA', 'PERIOD', 'SLASH', 'APOSTROPHE', 'TILDE', 'SINGLE_QUOTE', 'OPEN_SQUARE_BRACKET', 'BACKSLASH', 'CLOSE_SQUARE_BRACKET', 'WIN_KEY', 'MAC_FF_META', 'WIN_IME', 'UNKNOWN']);
  dart.defineLazy(html$.KeyCode, {
    /*html$.KeyCode.WIN_KEY_FF_LINUX*/get WIN_KEY_FF_LINUX() {
      return 0;
    },
    /*html$.KeyCode.MAC_ENTER*/get MAC_ENTER() {
      return 3;
    },
    /*html$.KeyCode.BACKSPACE*/get BACKSPACE() {
      return 8;
    },
    /*html$.KeyCode.TAB*/get TAB() {
      return 9;
    },
    /*html$.KeyCode.NUM_CENTER*/get NUM_CENTER() {
      return 12;
    },
    /*html$.KeyCode.ENTER*/get ENTER() {
      return 13;
    },
    /*html$.KeyCode.SHIFT*/get SHIFT() {
      return 16;
    },
    /*html$.KeyCode.CTRL*/get CTRL() {
      return 17;
    },
    /*html$.KeyCode.ALT*/get ALT() {
      return 18;
    },
    /*html$.KeyCode.PAUSE*/get PAUSE() {
      return 19;
    },
    /*html$.KeyCode.CAPS_LOCK*/get CAPS_LOCK() {
      return 20;
    },
    /*html$.KeyCode.ESC*/get ESC() {
      return 27;
    },
    /*html$.KeyCode.SPACE*/get SPACE() {
      return 32;
    },
    /*html$.KeyCode.PAGE_UP*/get PAGE_UP() {
      return 33;
    },
    /*html$.KeyCode.PAGE_DOWN*/get PAGE_DOWN() {
      return 34;
    },
    /*html$.KeyCode.END*/get END() {
      return 35;
    },
    /*html$.KeyCode.HOME*/get HOME() {
      return 36;
    },
    /*html$.KeyCode.LEFT*/get LEFT() {
      return 37;
    },
    /*html$.KeyCode.UP*/get UP() {
      return 38;
    },
    /*html$.KeyCode.RIGHT*/get RIGHT() {
      return 39;
    },
    /*html$.KeyCode.DOWN*/get DOWN() {
      return 40;
    },
    /*html$.KeyCode.NUM_NORTH_EAST*/get NUM_NORTH_EAST() {
      return 33;
    },
    /*html$.KeyCode.NUM_SOUTH_EAST*/get NUM_SOUTH_EAST() {
      return 34;
    },
    /*html$.KeyCode.NUM_SOUTH_WEST*/get NUM_SOUTH_WEST() {
      return 35;
    },
    /*html$.KeyCode.NUM_NORTH_WEST*/get NUM_NORTH_WEST() {
      return 36;
    },
    /*html$.KeyCode.NUM_WEST*/get NUM_WEST() {
      return 37;
    },
    /*html$.KeyCode.NUM_NORTH*/get NUM_NORTH() {
      return 38;
    },
    /*html$.KeyCode.NUM_EAST*/get NUM_EAST() {
      return 39;
    },
    /*html$.KeyCode.NUM_SOUTH*/get NUM_SOUTH() {
      return 40;
    },
    /*html$.KeyCode.PRINT_SCREEN*/get PRINT_SCREEN() {
      return 44;
    },
    /*html$.KeyCode.INSERT*/get INSERT() {
      return 45;
    },
    /*html$.KeyCode.NUM_INSERT*/get NUM_INSERT() {
      return 45;
    },
    /*html$.KeyCode.DELETE*/get DELETE() {
      return 46;
    },
    /*html$.KeyCode.NUM_DELETE*/get NUM_DELETE() {
      return 46;
    },
    /*html$.KeyCode.ZERO*/get ZERO() {
      return 48;
    },
    /*html$.KeyCode.ONE*/get ONE() {
      return 49;
    },
    /*html$.KeyCode.TWO*/get TWO() {
      return 50;
    },
    /*html$.KeyCode.THREE*/get THREE() {
      return 51;
    },
    /*html$.KeyCode.FOUR*/get FOUR() {
      return 52;
    },
    /*html$.KeyCode.FIVE*/get FIVE() {
      return 53;
    },
    /*html$.KeyCode.SIX*/get SIX() {
      return 54;
    },
    /*html$.KeyCode.SEVEN*/get SEVEN() {
      return 55;
    },
    /*html$.KeyCode.EIGHT*/get EIGHT() {
      return 56;
    },
    /*html$.KeyCode.NINE*/get NINE() {
      return 57;
    },
    /*html$.KeyCode.FF_SEMICOLON*/get FF_SEMICOLON() {
      return 59;
    },
    /*html$.KeyCode.FF_EQUALS*/get FF_EQUALS() {
      return 61;
    },
    /*html$.KeyCode.QUESTION_MARK*/get QUESTION_MARK() {
      return 63;
    },
    /*html$.KeyCode.A*/get A() {
      return 65;
    },
    /*html$.KeyCode.B*/get B() {
      return 66;
    },
    /*html$.KeyCode.C*/get C() {
      return 67;
    },
    /*html$.KeyCode.D*/get D() {
      return 68;
    },
    /*html$.KeyCode.E*/get E() {
      return 69;
    },
    /*html$.KeyCode.F*/get F() {
      return 70;
    },
    /*html$.KeyCode.G*/get G() {
      return 71;
    },
    /*html$.KeyCode.H*/get H() {
      return 72;
    },
    /*html$.KeyCode.I*/get I() {
      return 73;
    },
    /*html$.KeyCode.J*/get J() {
      return 74;
    },
    /*html$.KeyCode.K*/get K() {
      return 75;
    },
    /*html$.KeyCode.L*/get L() {
      return 76;
    },
    /*html$.KeyCode.M*/get M() {
      return 77;
    },
    /*html$.KeyCode.N*/get N() {
      return 78;
    },
    /*html$.KeyCode.O*/get O() {
      return 79;
    },
    /*html$.KeyCode.P*/get P() {
      return 80;
    },
    /*html$.KeyCode.Q*/get Q() {
      return 81;
    },
    /*html$.KeyCode.R*/get R() {
      return 82;
    },
    /*html$.KeyCode.S*/get S() {
      return 83;
    },
    /*html$.KeyCode.T*/get T() {
      return 84;
    },
    /*html$.KeyCode.U*/get U() {
      return 85;
    },
    /*html$.KeyCode.V*/get V() {
      return 86;
    },
    /*html$.KeyCode.W*/get W() {
      return 87;
    },
    /*html$.KeyCode.X*/get X() {
      return 88;
    },
    /*html$.KeyCode.Y*/get Y() {
      return 89;
    },
    /*html$.KeyCode.Z*/get Z() {
      return 90;
    },
    /*html$.KeyCode.META*/get META() {
      return 91;
    },
    /*html$.KeyCode.WIN_KEY_LEFT*/get WIN_KEY_LEFT() {
      return 91;
    },
    /*html$.KeyCode.WIN_KEY_RIGHT*/get WIN_KEY_RIGHT() {
      return 92;
    },
    /*html$.KeyCode.CONTEXT_MENU*/get CONTEXT_MENU() {
      return 93;
    },
    /*html$.KeyCode.NUM_ZERO*/get NUM_ZERO() {
      return 96;
    },
    /*html$.KeyCode.NUM_ONE*/get NUM_ONE() {
      return 97;
    },
    /*html$.KeyCode.NUM_TWO*/get NUM_TWO() {
      return 98;
    },
    /*html$.KeyCode.NUM_THREE*/get NUM_THREE() {
      return 99;
    },
    /*html$.KeyCode.NUM_FOUR*/get NUM_FOUR() {
      return 100;
    },
    /*html$.KeyCode.NUM_FIVE*/get NUM_FIVE() {
      return 101;
    },
    /*html$.KeyCode.NUM_SIX*/get NUM_SIX() {
      return 102;
    },
    /*html$.KeyCode.NUM_SEVEN*/get NUM_SEVEN() {
      return 103;
    },
    /*html$.KeyCode.NUM_EIGHT*/get NUM_EIGHT() {
      return 104;
    },
    /*html$.KeyCode.NUM_NINE*/get NUM_NINE() {
      return 105;
    },
    /*html$.KeyCode.NUM_MULTIPLY*/get NUM_MULTIPLY() {
      return 106;
    },
    /*html$.KeyCode.NUM_PLUS*/get NUM_PLUS() {
      return 107;
    },
    /*html$.KeyCode.NUM_MINUS*/get NUM_MINUS() {
      return 109;
    },
    /*html$.KeyCode.NUM_PERIOD*/get NUM_PERIOD() {
      return 110;
    },
    /*html$.KeyCode.NUM_DIVISION*/get NUM_DIVISION() {
      return 111;
    },
    /*html$.KeyCode.F1*/get F1() {
      return 112;
    },
    /*html$.KeyCode.F2*/get F2() {
      return 113;
    },
    /*html$.KeyCode.F3*/get F3() {
      return 114;
    },
    /*html$.KeyCode.F4*/get F4() {
      return 115;
    },
    /*html$.KeyCode.F5*/get F5() {
      return 116;
    },
    /*html$.KeyCode.F6*/get F6() {
      return 117;
    },
    /*html$.KeyCode.F7*/get F7() {
      return 118;
    },
    /*html$.KeyCode.F8*/get F8() {
      return 119;
    },
    /*html$.KeyCode.F9*/get F9() {
      return 120;
    },
    /*html$.KeyCode.F10*/get F10() {
      return 121;
    },
    /*html$.KeyCode.F11*/get F11() {
      return 122;
    },
    /*html$.KeyCode.F12*/get F12() {
      return 123;
    },
    /*html$.KeyCode.NUMLOCK*/get NUMLOCK() {
      return 144;
    },
    /*html$.KeyCode.SCROLL_LOCK*/get SCROLL_LOCK() {
      return 145;
    },
    /*html$.KeyCode.FIRST_MEDIA_KEY*/get FIRST_MEDIA_KEY() {
      return 166;
    },
    /*html$.KeyCode.LAST_MEDIA_KEY*/get LAST_MEDIA_KEY() {
      return 183;
    },
    /*html$.KeyCode.SEMICOLON*/get SEMICOLON() {
      return 186;
    },
    /*html$.KeyCode.DASH*/get DASH() {
      return 189;
    },
    /*html$.KeyCode.EQUALS*/get EQUALS() {
      return 187;
    },
    /*html$.KeyCode.COMMA*/get COMMA() {
      return 188;
    },
    /*html$.KeyCode.PERIOD*/get PERIOD() {
      return 190;
    },
    /*html$.KeyCode.SLASH*/get SLASH() {
      return 191;
    },
    /*html$.KeyCode.APOSTROPHE*/get APOSTROPHE() {
      return 192;
    },
    /*html$.KeyCode.TILDE*/get TILDE() {
      return 192;
    },
    /*html$.KeyCode.SINGLE_QUOTE*/get SINGLE_QUOTE() {
      return 222;
    },
    /*html$.KeyCode.OPEN_SQUARE_BRACKET*/get OPEN_SQUARE_BRACKET() {
      return 219;
    },
    /*html$.KeyCode.BACKSLASH*/get BACKSLASH() {
      return 220;
    },
    /*html$.KeyCode.CLOSE_SQUARE_BRACKET*/get CLOSE_SQUARE_BRACKET() {
      return 221;
    },
    /*html$.KeyCode.WIN_KEY*/get WIN_KEY() {
      return 224;
    },
    /*html$.KeyCode.MAC_FF_META*/get MAC_FF_META() {
      return 224;
    },
    /*html$.KeyCode.WIN_IME*/get WIN_IME() {
      return 229;
    },
    /*html$.KeyCode.UNKNOWN*/get UNKNOWN() {
      return -1;
    }
  }, false);
  html$.KeyLocation = class KeyLocation extends core.Object {};
  (html$.KeyLocation.new = function() {
    ;
  }).prototype = html$.KeyLocation.prototype;
  dart.addRtiResources(html$.KeyLocation, ["html|KeyLocation"]);
  dart.setLibraryUri(html$.KeyLocation, I[167]);
  dart.setStaticFieldSignature(html$.KeyLocation, () => ['STANDARD', 'LEFT', 'RIGHT', 'NUMPAD', 'MOBILE', 'JOYSTICK']);
  dart.defineLazy(html$.KeyLocation, {
    /*html$.KeyLocation.STANDARD*/get STANDARD() {
      return 0;
    },
    /*html$.KeyLocation.LEFT*/get LEFT() {
      return 1;
    },
    /*html$.KeyLocation.RIGHT*/get RIGHT() {
      return 2;
    },
    /*html$.KeyLocation.NUMPAD*/get NUMPAD() {
      return 3;
    },
    /*html$.KeyLocation.MOBILE*/get MOBILE() {
      return 4;
    },
    /*html$.KeyLocation.JOYSTICK*/get JOYSTICK() {
      return 5;
    }
  }, false);
  html$._KeyName = class _KeyName extends core.Object {};
  (html$._KeyName.new = function() {
    ;
  }).prototype = html$._KeyName.prototype;
  dart.addRtiResources(html$._KeyName, ["html|_KeyName"]);
  dart.setLibraryUri(html$._KeyName, I[167]);
  dart.setStaticFieldSignature(html$._KeyName, () => ['ACCEPT', 'ADD', 'AGAIN', 'ALL_CANDIDATES', 'ALPHANUMERIC', 'ALT', 'ALT_GRAPH', 'APPS', 'ATTN', 'BROWSER_BACK', 'BROWSER_FAVORITES', 'BROWSER_FORWARD', 'BROWSER_NAME', 'BROWSER_REFRESH', 'BROWSER_SEARCH', 'BROWSER_STOP', 'CAMERA', 'CAPS_LOCK', 'CLEAR', 'CODE_INPUT', 'COMPOSE', 'CONTROL', 'CRSEL', 'CONVERT', 'COPY', 'CUT', 'DECIMAL', 'DIVIDE', 'DOWN', 'DOWN_LEFT', 'DOWN_RIGHT', 'EJECT', 'END', 'ENTER', 'ERASE_EOF', 'EXECUTE', 'EXSEL', 'FN', 'F1', 'F2', 'F3', 'F4', 'F5', 'F6', 'F7', 'F8', 'F9', 'F10', 'F11', 'F12', 'F13', 'F14', 'F15', 'F16', 'F17', 'F18', 'F19', 'F20', 'F21', 'F22', 'F23', 'F24', 'FINAL_MODE', 'FIND', 'FULL_WIDTH', 'HALF_WIDTH', 'HANGUL_MODE', 'HANJA_MODE', 'HELP', 'HIRAGANA', 'HOME', 'INSERT', 'JAPANESE_HIRAGANA', 'JAPANESE_KATAKANA', 'JAPANESE_ROMAJI', 'JUNJA_MODE', 'KANA_MODE', 'KANJI_MODE', 'KATAKANA', 'LAUNCH_APPLICATION_1', 'LAUNCH_APPLICATION_2', 'LAUNCH_MAIL', 'LEFT', 'MENU', 'META', 'MEDIA_NEXT_TRACK', 'MEDIA_PAUSE_PLAY', 'MEDIA_PREVIOUS_TRACK', 'MEDIA_STOP', 'MODE_CHANGE', 'NEXT_CANDIDATE', 'NON_CONVERT', 'NUM_LOCK', 'PAGE_DOWN', 'PAGE_UP', 'PASTE', 'PAUSE', 'PLAY', 'POWER', 'PREVIOUS_CANDIDATE', 'PRINT_SCREEN', 'PROCESS', 'PROPS', 'RIGHT', 'ROMAN_CHARACTERS', 'SCROLL', 'SELECT', 'SELECT_MEDIA', 'SEPARATOR', 'SHIFT', 'SOFT_1', 'SOFT_2', 'SOFT_3', 'SOFT_4', 'STOP', 'SUBTRACT', 'SYMBOL_LOCK', 'UP', 'UP_LEFT', 'UP_RIGHT', 'UNDO', 'VOLUME_DOWN', 'VOLUMN_MUTE', 'VOLUMN_UP', 'WIN', 'ZOOM', 'BACKSPACE', 'TAB', 'CANCEL', 'ESC', 'SPACEBAR', 'DEL', 'DEAD_GRAVE', 'DEAD_EACUTE', 'DEAD_CIRCUMFLEX', 'DEAD_TILDE', 'DEAD_MACRON', 'DEAD_BREVE', 'DEAD_ABOVE_DOT', 'DEAD_UMLAUT', 'DEAD_ABOVE_RING', 'DEAD_DOUBLEACUTE', 'DEAD_CARON', 'DEAD_CEDILLA', 'DEAD_OGONEK', 'DEAD_IOTA', 'DEAD_VOICED_SOUND', 'DEC_SEMIVOICED_SOUND', 'UNIDENTIFIED']);
  dart.defineLazy(html$._KeyName, {
    /*html$._KeyName.ACCEPT*/get ACCEPT() {
      return "Accept";
    },
    /*html$._KeyName.ADD*/get ADD() {
      return "Add";
    },
    /*html$._KeyName.AGAIN*/get AGAIN() {
      return "Again";
    },
    /*html$._KeyName.ALL_CANDIDATES*/get ALL_CANDIDATES() {
      return "AllCandidates";
    },
    /*html$._KeyName.ALPHANUMERIC*/get ALPHANUMERIC() {
      return "Alphanumeric";
    },
    /*html$._KeyName.ALT*/get ALT() {
      return "Alt";
    },
    /*html$._KeyName.ALT_GRAPH*/get ALT_GRAPH() {
      return "AltGraph";
    },
    /*html$._KeyName.APPS*/get APPS() {
      return "Apps";
    },
    /*html$._KeyName.ATTN*/get ATTN() {
      return "Attn";
    },
    /*html$._KeyName.BROWSER_BACK*/get BROWSER_BACK() {
      return "BrowserBack";
    },
    /*html$._KeyName.BROWSER_FAVORITES*/get BROWSER_FAVORITES() {
      return "BrowserFavorites";
    },
    /*html$._KeyName.BROWSER_FORWARD*/get BROWSER_FORWARD() {
      return "BrowserForward";
    },
    /*html$._KeyName.BROWSER_NAME*/get BROWSER_NAME() {
      return "BrowserHome";
    },
    /*html$._KeyName.BROWSER_REFRESH*/get BROWSER_REFRESH() {
      return "BrowserRefresh";
    },
    /*html$._KeyName.BROWSER_SEARCH*/get BROWSER_SEARCH() {
      return "BrowserSearch";
    },
    /*html$._KeyName.BROWSER_STOP*/get BROWSER_STOP() {
      return "BrowserStop";
    },
    /*html$._KeyName.CAMERA*/get CAMERA() {
      return "Camera";
    },
    /*html$._KeyName.CAPS_LOCK*/get CAPS_LOCK() {
      return "CapsLock";
    },
    /*html$._KeyName.CLEAR*/get CLEAR() {
      return "Clear";
    },
    /*html$._KeyName.CODE_INPUT*/get CODE_INPUT() {
      return "CodeInput";
    },
    /*html$._KeyName.COMPOSE*/get COMPOSE() {
      return "Compose";
    },
    /*html$._KeyName.CONTROL*/get CONTROL() {
      return "Control";
    },
    /*html$._KeyName.CRSEL*/get CRSEL() {
      return "Crsel";
    },
    /*html$._KeyName.CONVERT*/get CONVERT() {
      return "Convert";
    },
    /*html$._KeyName.COPY*/get COPY() {
      return "Copy";
    },
    /*html$._KeyName.CUT*/get CUT() {
      return "Cut";
    },
    /*html$._KeyName.DECIMAL*/get DECIMAL() {
      return "Decimal";
    },
    /*html$._KeyName.DIVIDE*/get DIVIDE() {
      return "Divide";
    },
    /*html$._KeyName.DOWN*/get DOWN() {
      return "Down";
    },
    /*html$._KeyName.DOWN_LEFT*/get DOWN_LEFT() {
      return "DownLeft";
    },
    /*html$._KeyName.DOWN_RIGHT*/get DOWN_RIGHT() {
      return "DownRight";
    },
    /*html$._KeyName.EJECT*/get EJECT() {
      return "Eject";
    },
    /*html$._KeyName.END*/get END() {
      return "End";
    },
    /*html$._KeyName.ENTER*/get ENTER() {
      return "Enter";
    },
    /*html$._KeyName.ERASE_EOF*/get ERASE_EOF() {
      return "EraseEof";
    },
    /*html$._KeyName.EXECUTE*/get EXECUTE() {
      return "Execute";
    },
    /*html$._KeyName.EXSEL*/get EXSEL() {
      return "Exsel";
    },
    /*html$._KeyName.FN*/get FN() {
      return "Fn";
    },
    /*html$._KeyName.F1*/get F1() {
      return "F1";
    },
    /*html$._KeyName.F2*/get F2() {
      return "F2";
    },
    /*html$._KeyName.F3*/get F3() {
      return "F3";
    },
    /*html$._KeyName.F4*/get F4() {
      return "F4";
    },
    /*html$._KeyName.F5*/get F5() {
      return "F5";
    },
    /*html$._KeyName.F6*/get F6() {
      return "F6";
    },
    /*html$._KeyName.F7*/get F7() {
      return "F7";
    },
    /*html$._KeyName.F8*/get F8() {
      return "F8";
    },
    /*html$._KeyName.F9*/get F9() {
      return "F9";
    },
    /*html$._KeyName.F10*/get F10() {
      return "F10";
    },
    /*html$._KeyName.F11*/get F11() {
      return "F11";
    },
    /*html$._KeyName.F12*/get F12() {
      return "F12";
    },
    /*html$._KeyName.F13*/get F13() {
      return "F13";
    },
    /*html$._KeyName.F14*/get F14() {
      return "F14";
    },
    /*html$._KeyName.F15*/get F15() {
      return "F15";
    },
    /*html$._KeyName.F16*/get F16() {
      return "F16";
    },
    /*html$._KeyName.F17*/get F17() {
      return "F17";
    },
    /*html$._KeyName.F18*/get F18() {
      return "F18";
    },
    /*html$._KeyName.F19*/get F19() {
      return "F19";
    },
    /*html$._KeyName.F20*/get F20() {
      return "F20";
    },
    /*html$._KeyName.F21*/get F21() {
      return "F21";
    },
    /*html$._KeyName.F22*/get F22() {
      return "F22";
    },
    /*html$._KeyName.F23*/get F23() {
      return "F23";
    },
    /*html$._KeyName.F24*/get F24() {
      return "F24";
    },
    /*html$._KeyName.FINAL_MODE*/get FINAL_MODE() {
      return "FinalMode";
    },
    /*html$._KeyName.FIND*/get FIND() {
      return "Find";
    },
    /*html$._KeyName.FULL_WIDTH*/get FULL_WIDTH() {
      return "FullWidth";
    },
    /*html$._KeyName.HALF_WIDTH*/get HALF_WIDTH() {
      return "HalfWidth";
    },
    /*html$._KeyName.HANGUL_MODE*/get HANGUL_MODE() {
      return "HangulMode";
    },
    /*html$._KeyName.HANJA_MODE*/get HANJA_MODE() {
      return "HanjaMode";
    },
    /*html$._KeyName.HELP*/get HELP() {
      return "Help";
    },
    /*html$._KeyName.HIRAGANA*/get HIRAGANA() {
      return "Hiragana";
    },
    /*html$._KeyName.HOME*/get HOME() {
      return "Home";
    },
    /*html$._KeyName.INSERT*/get INSERT() {
      return "Insert";
    },
    /*html$._KeyName.JAPANESE_HIRAGANA*/get JAPANESE_HIRAGANA() {
      return "JapaneseHiragana";
    },
    /*html$._KeyName.JAPANESE_KATAKANA*/get JAPANESE_KATAKANA() {
      return "JapaneseKatakana";
    },
    /*html$._KeyName.JAPANESE_ROMAJI*/get JAPANESE_ROMAJI() {
      return "JapaneseRomaji";
    },
    /*html$._KeyName.JUNJA_MODE*/get JUNJA_MODE() {
      return "JunjaMode";
    },
    /*html$._KeyName.KANA_MODE*/get KANA_MODE() {
      return "KanaMode";
    },
    /*html$._KeyName.KANJI_MODE*/get KANJI_MODE() {
      return "KanjiMode";
    },
    /*html$._KeyName.KATAKANA*/get KATAKANA() {
      return "Katakana";
    },
    /*html$._KeyName.LAUNCH_APPLICATION_1*/get LAUNCH_APPLICATION_1() {
      return "LaunchApplication1";
    },
    /*html$._KeyName.LAUNCH_APPLICATION_2*/get LAUNCH_APPLICATION_2() {
      return "LaunchApplication2";
    },
    /*html$._KeyName.LAUNCH_MAIL*/get LAUNCH_MAIL() {
      return "LaunchMail";
    },
    /*html$._KeyName.LEFT*/get LEFT() {
      return "Left";
    },
    /*html$._KeyName.MENU*/get MENU() {
      return "Menu";
    },
    /*html$._KeyName.META*/get META() {
      return "Meta";
    },
    /*html$._KeyName.MEDIA_NEXT_TRACK*/get MEDIA_NEXT_TRACK() {
      return "MediaNextTrack";
    },
    /*html$._KeyName.MEDIA_PAUSE_PLAY*/get MEDIA_PAUSE_PLAY() {
      return "MediaPlayPause";
    },
    /*html$._KeyName.MEDIA_PREVIOUS_TRACK*/get MEDIA_PREVIOUS_TRACK() {
      return "MediaPreviousTrack";
    },
    /*html$._KeyName.MEDIA_STOP*/get MEDIA_STOP() {
      return "MediaStop";
    },
    /*html$._KeyName.MODE_CHANGE*/get MODE_CHANGE() {
      return "ModeChange";
    },
    /*html$._KeyName.NEXT_CANDIDATE*/get NEXT_CANDIDATE() {
      return "NextCandidate";
    },
    /*html$._KeyName.NON_CONVERT*/get NON_CONVERT() {
      return "Nonconvert";
    },
    /*html$._KeyName.NUM_LOCK*/get NUM_LOCK() {
      return "NumLock";
    },
    /*html$._KeyName.PAGE_DOWN*/get PAGE_DOWN() {
      return "PageDown";
    },
    /*html$._KeyName.PAGE_UP*/get PAGE_UP() {
      return "PageUp";
    },
    /*html$._KeyName.PASTE*/get PASTE() {
      return "Paste";
    },
    /*html$._KeyName.PAUSE*/get PAUSE() {
      return "Pause";
    },
    /*html$._KeyName.PLAY*/get PLAY() {
      return "Play";
    },
    /*html$._KeyName.POWER*/get POWER() {
      return "Power";
    },
    /*html$._KeyName.PREVIOUS_CANDIDATE*/get PREVIOUS_CANDIDATE() {
      return "PreviousCandidate";
    },
    /*html$._KeyName.PRINT_SCREEN*/get PRINT_SCREEN() {
      return "PrintScreen";
    },
    /*html$._KeyName.PROCESS*/get PROCESS() {
      return "Process";
    },
    /*html$._KeyName.PROPS*/get PROPS() {
      return "Props";
    },
    /*html$._KeyName.RIGHT*/get RIGHT() {
      return "Right";
    },
    /*html$._KeyName.ROMAN_CHARACTERS*/get ROMAN_CHARACTERS() {
      return "RomanCharacters";
    },
    /*html$._KeyName.SCROLL*/get SCROLL() {
      return "Scroll";
    },
    /*html$._KeyName.SELECT*/get SELECT() {
      return "Select";
    },
    /*html$._KeyName.SELECT_MEDIA*/get SELECT_MEDIA() {
      return "SelectMedia";
    },
    /*html$._KeyName.SEPARATOR*/get SEPARATOR() {
      return "Separator";
    },
    /*html$._KeyName.SHIFT*/get SHIFT() {
      return "Shift";
    },
    /*html$._KeyName.SOFT_1*/get SOFT_1() {
      return "Soft1";
    },
    /*html$._KeyName.SOFT_2*/get SOFT_2() {
      return "Soft2";
    },
    /*html$._KeyName.SOFT_3*/get SOFT_3() {
      return "Soft3";
    },
    /*html$._KeyName.SOFT_4*/get SOFT_4() {
      return "Soft4";
    },
    /*html$._KeyName.STOP*/get STOP() {
      return "Stop";
    },
    /*html$._KeyName.SUBTRACT*/get SUBTRACT() {
      return "Subtract";
    },
    /*html$._KeyName.SYMBOL_LOCK*/get SYMBOL_LOCK() {
      return "SymbolLock";
    },
    /*html$._KeyName.UP*/get UP() {
      return "Up";
    },
    /*html$._KeyName.UP_LEFT*/get UP_LEFT() {
      return "UpLeft";
    },
    /*html$._KeyName.UP_RIGHT*/get UP_RIGHT() {
      return "UpRight";
    },
    /*html$._KeyName.UNDO*/get UNDO() {
      return "Undo";
    },
    /*html$._KeyName.VOLUME_DOWN*/get VOLUME_DOWN() {
      return "VolumeDown";
    },
    /*html$._KeyName.VOLUMN_MUTE*/get VOLUMN_MUTE() {
      return "VolumeMute";
    },
    /*html$._KeyName.VOLUMN_UP*/get VOLUMN_UP() {
      return "VolumeUp";
    },
    /*html$._KeyName.WIN*/get WIN() {
      return "Win";
    },
    /*html$._KeyName.ZOOM*/get ZOOM() {
      return "Zoom";
    },
    /*html$._KeyName.BACKSPACE*/get BACKSPACE() {
      return "Backspace";
    },
    /*html$._KeyName.TAB*/get TAB() {
      return "Tab";
    },
    /*html$._KeyName.CANCEL*/get CANCEL() {
      return "Cancel";
    },
    /*html$._KeyName.ESC*/get ESC() {
      return "Esc";
    },
    /*html$._KeyName.SPACEBAR*/get SPACEBAR() {
      return "Spacebar";
    },
    /*html$._KeyName.DEL*/get DEL() {
      return "Del";
    },
    /*html$._KeyName.DEAD_GRAVE*/get DEAD_GRAVE() {
      return "DeadGrave";
    },
    /*html$._KeyName.DEAD_EACUTE*/get DEAD_EACUTE() {
      return "DeadEacute";
    },
    /*html$._KeyName.DEAD_CIRCUMFLEX*/get DEAD_CIRCUMFLEX() {
      return "DeadCircumflex";
    },
    /*html$._KeyName.DEAD_TILDE*/get DEAD_TILDE() {
      return "DeadTilde";
    },
    /*html$._KeyName.DEAD_MACRON*/get DEAD_MACRON() {
      return "DeadMacron";
    },
    /*html$._KeyName.DEAD_BREVE*/get DEAD_BREVE() {
      return "DeadBreve";
    },
    /*html$._KeyName.DEAD_ABOVE_DOT*/get DEAD_ABOVE_DOT() {
      return "DeadAboveDot";
    },
    /*html$._KeyName.DEAD_UMLAUT*/get DEAD_UMLAUT() {
      return "DeadUmlaut";
    },
    /*html$._KeyName.DEAD_ABOVE_RING*/get DEAD_ABOVE_RING() {
      return "DeadAboveRing";
    },
    /*html$._KeyName.DEAD_DOUBLEACUTE*/get DEAD_DOUBLEACUTE() {
      return "DeadDoubleacute";
    },
    /*html$._KeyName.DEAD_CARON*/get DEAD_CARON() {
      return "DeadCaron";
    },
    /*html$._KeyName.DEAD_CEDILLA*/get DEAD_CEDILLA() {
      return "DeadCedilla";
    },
    /*html$._KeyName.DEAD_OGONEK*/get DEAD_OGONEK() {
      return "DeadOgonek";
    },
    /*html$._KeyName.DEAD_IOTA*/get DEAD_IOTA() {
      return "DeadIota";
    },
    /*html$._KeyName.DEAD_VOICED_SOUND*/get DEAD_VOICED_SOUND() {
      return "DeadVoicedSound";
    },
    /*html$._KeyName.DEC_SEMIVOICED_SOUND*/get DEC_SEMIVOICED_SOUND() {
      return "DeadSemivoicedSound";
    },
    /*html$._KeyName.UNIDENTIFIED*/get UNIDENTIFIED() {
      return "Unidentified";
    }
  }, false);
  html$._KeyboardEventHandler = class _KeyboardEventHandler extends G$.EventStreamProviderOfKeyEvent() {
    forTarget(e, opts) {
      let useCapture = opts && 'useCapture' in opts ? opts.useCapture : false;
      if (useCapture == null) dart.nullFailed(I[166], 38927, 58, "useCapture");
      let handler = new html$._KeyboardEventHandler.initializeAllEventListeners(this[S$3._type$4], e);
      return handler[S$3._stream$3];
    }
    static ['_#new#tearOff'](_type) {
      if (_type == null) dart.nullFailed(I[166], 38937, 30, "_type");
      return new html$._KeyboardEventHandler.new(_type);
    }
    static ['_#initializeAllEventListeners#tearOff'](_type, _target) {
      if (_type == null) dart.nullFailed(I[166], 38946, 58, "_type");
      return new html$._KeyboardEventHandler.initializeAllEventListeners(_type, _target);
    }
    get [S$3._capsLockOn]() {
      return this[S$3._keyDownList][$any](dart.fn(element => {
        if (element == null) dart.nullFailed(I[166], 38962, 29, "element");
        return element.keyCode === 20;
      }, T$6.KeyEventTobool()));
    }
    [S$3._determineKeyCodeForKeypress](event) {
      if (event == null) dart.nullFailed(I[166], 38971, 50, "event");
      for (let prevEvent of this[S$3._keyDownList]) {
        if (prevEvent[S$3._shadowCharCode] == event.charCode) {
          return prevEvent.keyCode;
        }
        if ((dart.test(event.shiftKey) || dart.test(this[S$3._capsLockOn])) && dart.notNull(event.charCode) >= dart.notNull("A"[$codeUnits][$_get](0)) && dart.notNull(event.charCode) <= dart.notNull("Z"[$codeUnits][$_get](0)) && dart.notNull(event.charCode) + dart.notNull(html$._KeyboardEventHandler._ROMAN_ALPHABET_OFFSET) === prevEvent[S$3._shadowCharCode]) {
          return prevEvent.keyCode;
        }
      }
      return -1;
    }
    [S$3._findCharCodeKeyDown](event) {
      if (event == null) dart.nullFailed(I[166], 38995, 42, "event");
      if (event.location === 3) {
        switch (event.keyCode) {
          case 96:
            {
              return 48;
            }
          case 97:
            {
              return 49;
            }
          case 98:
            {
              return 50;
            }
          case 99:
            {
              return 51;
            }
          case 100:
            {
              return 52;
            }
          case 101:
            {
              return 53;
            }
          case 102:
            {
              return 54;
            }
          case 103:
            {
              return 55;
            }
          case 104:
            {
              return 56;
            }
          case 105:
            {
              return 57;
            }
          case 106:
            {
              return 42;
            }
          case 107:
            {
              return 43;
            }
          case 109:
            {
              return 45;
            }
          case 110:
            {
              return 46;
            }
          case 111:
            {
              return 47;
            }
        }
      } else if (dart.notNull(event.keyCode) >= 65 && dart.notNull(event.keyCode) <= 90) {
        return dart.notNull(event.keyCode) + dart.notNull(html$._KeyboardEventHandler._ROMAN_ALPHABET_OFFSET);
      }
      switch (event.keyCode) {
        case 186:
          {
            return 59;
          }
        case 187:
          {
            return 61;
          }
        case 188:
          {
            return 44;
          }
        case 189:
          {
            return 45;
          }
        case 190:
          {
            return 46;
          }
        case 191:
          {
            return 47;
          }
        case 192:
          {
            return 96;
          }
        case 219:
          {
            return 91;
          }
        case 220:
          {
            return 92;
          }
        case 221:
          {
            return 93;
          }
        case 222:
          {
            return 39;
          }
      }
      return event.keyCode;
    }
    [S$3._firesKeyPressEvent](event) {
      if (event == null) dart.nullFailed(I[166], 39069, 37, "event");
      if (!dart.test(html_common.Device.isIE) && !dart.test(html_common.Device.isWebKit)) {
        return true;
      }
      if (html_common.Device.userAgent[$contains]("Mac") && dart.test(event.altKey)) {
        return html$.KeyCode.isCharacterKey(event.keyCode);
      }
      if (dart.test(event.altKey) && !dart.test(event.ctrlKey)) {
        return false;
      }
      if (!dart.test(event.shiftKey) && (this[S$3._keyDownList][$last].keyCode === 17 || this[S$3._keyDownList][$last].keyCode === 18 || html_common.Device.userAgent[$contains]("Mac") && this[S$3._keyDownList][$last].keyCode === 91)) {
        return false;
      }
      if (dart.test(html_common.Device.isWebKit) && dart.test(event.ctrlKey) && dart.test(event.shiftKey) && (event.keyCode === 220 || event.keyCode === 219 || event.keyCode === 221 || event.keyCode === 192 || event.keyCode === 186 || event.keyCode === 189 || event.keyCode === 187 || event.keyCode === 188 || event.keyCode === 190 || event.keyCode === 191 || event.keyCode === 192 || event.keyCode === 222)) {
        return false;
      }
      switch (event.keyCode) {
        case 13:
          {
            return !dart.test(html_common.Device.isIE);
          }
        case 27:
          {
            return !dart.test(html_common.Device.isWebKit);
          }
      }
      return html$.KeyCode.isCharacterKey(event.keyCode);
    }
    [S$3._normalizeKeyCodes](event) {
      if (event == null) dart.nullFailed(I[166], 39126, 40, "event");
      if (dart.test(html_common.Device.isFirefox)) {
        switch (event.keyCode) {
          case 61:
            {
              return 187;
            }
          case 59:
            {
              return 186;
            }
          case 224:
            {
              return 91;
            }
          case 0:
            {
              return 224;
            }
        }
      }
      return event.keyCode;
    }
    processKeyDown(e) {
      if (e == null) dart.nullFailed(I[166], 39144, 37, "e");
      if (dart.notNull(this[S$3._keyDownList][$length]) > 0 && (this[S$3._keyDownList][$last].keyCode === 17 && !dart.test(e.ctrlKey) || this[S$3._keyDownList][$last].keyCode === 18 && !dart.test(e.altKey) || html_common.Device.userAgent[$contains]("Mac") && this[S$3._keyDownList][$last].keyCode === 91 && !dart.test(e.metaKey))) {
        this[S$3._keyDownList][$clear]();
      }
      let event = new html$.KeyEvent.wrap(e);
      event[S$3._shadowKeyCode] = this[S$3._normalizeKeyCodes](event);
      event[S$3._shadowCharCode] = this[S$3._findCharCodeKeyDown](event);
      if (dart.notNull(this[S$3._keyDownList][$length]) > 0 && event.keyCode != this[S$3._keyDownList][$last].keyCode && !dart.test(this[S$3._firesKeyPressEvent](event))) {
        this.processKeyPress(e);
      }
      this[S$3._keyDownList][$add](event);
      this[S$3._stream$3].add(event);
    }
    processKeyPress(event) {
      if (event == null) dart.nullFailed(I[166], 39176, 38, "event");
      let e = new html$.KeyEvent.wrap(event);
      if (dart.test(html_common.Device.isIE)) {
        if (e.keyCode === 13 || e.keyCode === 27) {
          e[S$3._shadowCharCode] = 0;
        } else {
          e[S$3._shadowCharCode] = e.keyCode;
        }
      } else if (dart.test(html_common.Device.isOpera)) {
        e[S$3._shadowCharCode] = dart.test(html$.KeyCode.isCharacterKey(e.keyCode)) ? e.keyCode : 0;
      }
      e[S$3._shadowKeyCode] = this[S$3._determineKeyCodeForKeypress](e);
      if (e[S$3._shadowKeyIdentifier] != null && dart.test(html$._KeyboardEventHandler._keyIdentifier[$containsKey](e[S$3._shadowKeyIdentifier]))) {
        e[S$3._shadowKeyCode] = dart.nullCheck(html$._KeyboardEventHandler._keyIdentifier[$_get](e[S$3._shadowKeyIdentifier]));
      }
      e[S$3._shadowAltKey] = this[S$3._keyDownList][$any](dart.fn(element => {
        if (element == null) dart.nullFailed(I[166], 39201, 45, "element");
        return element.altKey;
      }, T$6.KeyEventTobool()));
      this[S$3._stream$3].add(e);
    }
    processKeyUp(event) {
      if (event == null) dart.nullFailed(I[166], 39206, 35, "event");
      let e = new html$.KeyEvent.wrap(event);
      let toRemove = null;
      for (let key of this[S$3._keyDownList]) {
        if (key.keyCode == e.keyCode) {
          toRemove = key;
        }
      }
      if (toRemove != null) {
        this[S$3._keyDownList][$removeWhere](dart.fn(element => {
          if (element == null) dart.nullFailed(I[166], 39215, 33, "element");
          return dart.equals(element, toRemove);
        }, T$6.KeyEventTobool()));
      } else if (dart.notNull(this[S$3._keyDownList][$length]) > 0) {
        this[S$3._keyDownList][$removeLast]();
      }
      this[S$3._stream$3].add(e);
    }
  };
  (html$._KeyboardEventHandler.new = function(_type) {
    if (_type == null) dart.nullFailed(I[166], 38937, 30, "_type");
    this[S$3._keyDownList] = G$.JSArrayOfKeyEvent().of([]);
    this[S$3._type$4] = _type;
    this[S$3._stream$3] = new html$._CustomKeyEventStreamImpl.new("event");
    this[S$3._target$2] = null;
    this.$ti = this.$ti || T$6._KeyboardEventHandler();
    dart.global.Object.getPrototypeOf(html$._KeyboardEventHandler).new.call(this, "KeyEvent");
    ;
  }).prototype = html$._KeyboardEventHandler.prototype;
  (html$._KeyboardEventHandler.initializeAllEventListeners = function(_type, _target) {
    if (_type == null) dart.nullFailed(I[166], 38946, 58, "_type");
    this[S$3._keyDownList] = G$.JSArrayOfKeyEvent().of([]);
    this[S$3._type$4] = _type;
    this[S$3._target$2] = _target;
    this[S$3._stream$3] = new html$._CustomKeyEventStreamImpl.new(_type);
    this.$ti = this.$ti || T$6._KeyboardEventHandler();
    dart.global.Object.getPrototypeOf(html$._KeyboardEventHandler).new.call(this, "KeyEvent");
    html$.Element.keyDownEvent.forTarget(this[S$3._target$2], {useCapture: true}).listen(dart.bind(this, 'processKeyDown'));
    html$.Element.keyPressEvent.forTarget(this[S$3._target$2], {useCapture: true}).listen(dart.bind(this, 'processKeyPress'));
    html$.Element.keyUpEvent.forTarget(this[S$3._target$2], {useCapture: true}).listen(dart.bind(this, 'processKeyUp'));
  }).prototype = html$._KeyboardEventHandler.prototype;
  dart.addRtiResources(html$._KeyboardEventHandler, ["html|_KeyboardEventHandler"]);
  dart.setMethodSignature(html$._KeyboardEventHandler, () => dart.global.Object.setPrototypeOf({
    forTarget: T$6.EventTargetN__ToCustomStreamOfKeyEvent(),
    [S$3._determineKeyCodeForKeypress]: T$6.KeyboardEventToint(),
    [S$3._findCharCodeKeyDown]: T$6.KeyboardEventToint(),
    [S$3._firesKeyPressEvent]: T$6.KeyEventTobool(),
    [S$3._normalizeKeyCodes]: T$6.KeyboardEventToint(),
    processKeyDown: T$6.KeyboardEventTovoid(),
    processKeyPress: T$6.KeyboardEventTovoid(),
    processKeyUp: T$6.KeyboardEventTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._KeyboardEventHandler))));
  dart.setGetterSignature(html$._KeyboardEventHandler, () => dart.global.Object.setPrototypeOf({[S$3._capsLockOn]: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(html$._KeyboardEventHandler))));
  dart.setLibraryUri(html$._KeyboardEventHandler, I[167]);
  dart.setFieldSignature(html$._KeyboardEventHandler, () => dart.global.Object.setPrototypeOf({
    [S$3._keyDownList]: {type: T$6.ListOfKeyEvent(), isConst: false, isFinal: true, libraryUri: I[11]},
    [S$3._type$4]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [S$3._target$2]: {type: T$3.EventTargetN(), isConst: false, isFinal: true, libraryUri: I[167]},
    [S$3._stream$3]: {type: T$6._CustomKeyEventStreamImpl(), isConst: false, isFinal: false, libraryUri: I[167]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._KeyboardEventHandler))));
  dart.setStaticFieldSignature(html$._KeyboardEventHandler, () => ['_ROMAN_ALPHABET_OFFSET', '_EVENT_TYPE', '_keyIdentifier']);
  dart.defineLazy(html$._KeyboardEventHandler, {
    /*html$._KeyboardEventHandler._ROMAN_ALPHABET_OFFSET*/get _ROMAN_ALPHABET_OFFSET() {
      return dart.notNull("a"[$codeUnits][$_get](0)) - dart.notNull("A"[$codeUnits][$_get](0));
    },
    /*html$._KeyboardEventHandler._EVENT_TYPE*/get _EVENT_TYPE() {
      return "KeyEvent";
    },
    /*html$._KeyboardEventHandler._keyIdentifier*/get _keyIdentifier() {
      return C[455] || CT.C455;
    }
  }, false);
  html$.KeyboardEventStream = class KeyboardEventStream extends core.Object {
    static onKeyPress(target) {
      if (target == null) dart.nullFailed(I[166], 39243, 56, "target");
      return new html$._KeyboardEventHandler.new("keypress").forTarget(target);
    }
    static onKeyUp(target) {
      if (target == null) dart.nullFailed(I[166], 39247, 53, "target");
      return new html$._KeyboardEventHandler.new("keyup").forTarget(target);
    }
    static onKeyDown(target) {
      if (target == null) dart.nullFailed(I[166], 39251, 55, "target");
      return new html$._KeyboardEventHandler.new("keydown").forTarget(target);
    }
    static ['_#new#tearOff']() {
      return new html$.KeyboardEventStream.new();
    }
  };
  (html$.KeyboardEventStream.new = function() {
    ;
  }).prototype = html$.KeyboardEventStream.prototype;
  dart.addRtiResources(html$.KeyboardEventStream, ["html|KeyboardEventStream"]);
  dart.setStaticMethodSignature(html$.KeyboardEventStream, () => ['onKeyPress', 'onKeyUp', 'onKeyDown']);
  dart.setLibraryUri(html$.KeyboardEventStream, I[167]);
  html$.NodeValidatorBuilder = class NodeValidatorBuilder extends core.Object {
    static ['_#new#tearOff']() {
      return new html$.NodeValidatorBuilder.new();
    }
    static ['_#common#tearOff']() {
      return new html$.NodeValidatorBuilder.common();
    }
    allowNavigation(uriPolicy = null) {
      if (uriPolicy == null) {
        uriPolicy = html$.UriPolicy.new();
      }
      this.add(html$._SimpleNodeValidator.allowNavigation(uriPolicy));
    }
    allowImages(uriPolicy = null) {
      if (uriPolicy == null) {
        uriPolicy = html$.UriPolicy.new();
      }
      this.add(html$._SimpleNodeValidator.allowImages(uriPolicy));
    }
    allowTextElements() {
      this.add(html$._SimpleNodeValidator.allowTextElements());
    }
    allowInlineStyles(opts) {
      let tagName = opts && 'tagName' in opts ? opts.tagName : null;
      if (tagName == null) {
        tagName = "*";
      } else {
        tagName = tagName[$toUpperCase]();
      }
      this.add(new html$._SimpleNodeValidator.new(null, {allowedAttributes: G.JSArrayOfString().of([dart.str(tagName) + "::style"])}));
    }
    allowHtml5(opts) {
      let uriPolicy = opts && 'uriPolicy' in opts ? opts.uriPolicy : null;
      this.add(new html$._Html5NodeValidator.new({uriPolicy: uriPolicy}));
    }
    allowSvg() {
      this.add(new html$._SvgNodeValidator.new());
    }
    allowCustomElement(tagName, opts) {
      let t$36372, t$36372$;
      if (tagName == null) dart.nullFailed(I[166], 39402, 34, "tagName");
      let uriPolicy = opts && 'uriPolicy' in opts ? opts.uriPolicy : null;
      let attributes = opts && 'attributes' in opts ? opts.attributes : null;
      let uriAttributes = opts && 'uriAttributes' in opts ? opts.uriAttributes : null;
      let tagNameUpper = tagName[$toUpperCase]();
      let attrs = (t$36372 = attributes, t$36372 == null ? null : t$36372[$map](T$.String(), dart.fn(name => {
        if (name == null) dart.nullFailed(I[166], 39408, 24, "name");
        return tagNameUpper + "::" + name[$toLowerCase]();
      }, T$.StringToString())));
      let uriAttrs = (t$36372$ = uriAttributes, t$36372$ == null ? null : t$36372$[$map](T$.String(), dart.fn(name => {
        if (name == null) dart.nullFailed(I[166], 39410, 24, "name");
        return tagNameUpper + "::" + name[$toLowerCase]();
      }, T$.StringToString())));
      if (uriPolicy == null) {
        uriPolicy = html$.UriPolicy.new();
      }
      this.add(new html$._CustomElementNodeValidator.new(uriPolicy, G.JSArrayOfString().of([tagNameUpper]), attrs, uriAttrs, false, true));
    }
    allowTagExtension(tagName, baseName, opts) {
      let t$36372, t$36372$;
      if (tagName == null) dart.nullFailed(I[166], 39427, 33, "tagName");
      if (baseName == null) dart.nullFailed(I[166], 39427, 49, "baseName");
      let uriPolicy = opts && 'uriPolicy' in opts ? opts.uriPolicy : null;
      let attributes = opts && 'attributes' in opts ? opts.attributes : null;
      let uriAttributes = opts && 'uriAttributes' in opts ? opts.uriAttributes : null;
      let baseNameUpper = baseName[$toUpperCase]();
      let tagNameUpper = tagName[$toUpperCase]();
      let attrs = (t$36372 = attributes, t$36372 == null ? null : t$36372[$map](T$.String(), dart.fn(name => {
        if (name == null) dart.nullFailed(I[166], 39434, 24, "name");
        return baseNameUpper + "::" + name[$toLowerCase]();
      }, T$.StringToString())));
      let uriAttrs = (t$36372$ = uriAttributes, t$36372$ == null ? null : t$36372$[$map](T$.String(), dart.fn(name => {
        if (name == null) dart.nullFailed(I[166], 39436, 24, "name");
        return baseNameUpper + "::" + name[$toLowerCase]();
      }, T$.StringToString())));
      if (uriPolicy == null) {
        uriPolicy = html$.UriPolicy.new();
      }
      this.add(new html$._CustomElementNodeValidator.new(uriPolicy, G.JSArrayOfString().of([tagNameUpper, baseNameUpper]), attrs, uriAttrs, true, false));
    }
    allowElement(tagName, opts) {
      if (tagName == null) dart.nullFailed(I[166], 39445, 28, "tagName");
      let uriPolicy = opts && 'uriPolicy' in opts ? opts.uriPolicy : null;
      let attributes = opts && 'attributes' in opts ? opts.attributes : null;
      let uriAttributes = opts && 'uriAttributes' in opts ? opts.uriAttributes : null;
      this.allowCustomElement(tagName, {uriPolicy: uriPolicy, attributes: attributes, uriAttributes: uriAttributes});
    }
    allowTemplating() {
      this.add(new html$._TemplatingNodeValidator.new());
    }
    add(validator) {
      if (validator == null) dart.nullFailed(I[166], 39472, 26, "validator");
      this[S$3._validators][$add](validator);
    }
    allowsElement(element) {
      if (element == null) dart.nullFailed(I[166], 39476, 30, "element");
      return this[S$3._validators][$any](dart.fn(v => {
        if (v == null) dart.nullFailed(I[166], 39477, 29, "v");
        return v.allowsElement(element);
      }, T$6.NodeValidatorTobool()));
    }
    allowsAttribute(element, attributeName, value) {
      if (element == null) dart.nullFailed(I[166], 39480, 32, "element");
      if (attributeName == null) dart.nullFailed(I[166], 39480, 48, "attributeName");
      if (value == null) dart.nullFailed(I[166], 39480, 70, "value");
      return this[S$3._validators][$any](dart.fn(v => {
        if (v == null) dart.nullFailed(I[166], 39482, 15, "v");
        return v.allowsAttribute(element, attributeName, value);
      }, T$6.NodeValidatorTobool()));
    }
  };
  (html$.NodeValidatorBuilder.new = function() {
    this[S$3._validators] = G$.JSArrayOfNodeValidator().of([]);
  }).prototype = html$.NodeValidatorBuilder.prototype;
  (html$.NodeValidatorBuilder.common = function() {
    this[S$3._validators] = G$.JSArrayOfNodeValidator().of([]);
    this.allowHtml5();
    this.allowTemplating();
  }).prototype = html$.NodeValidatorBuilder.prototype;
  dart.addRtiResources(html$.NodeValidatorBuilder, ["html|NodeValidatorBuilder", "html|NodeValidator"]);
  dart.setMethodSignature(html$.NodeValidatorBuilder, () => dart.global.Object.setPrototypeOf({
    allowNavigation: T$6.UriPolicyNTovoid(),
    allowImages: T$6.UriPolicyNTovoid(),
    allowTextElements: T$.VoidTovoid(),
    allowInlineStyles: T$6.__Tovoid$5(),
    allowHtml5: T$7.__Tovoid$6(),
    allowSvg: T$.VoidTovoid(),
    allowCustomElement: T$7.String__Tovoid$7(),
    allowTagExtension: T$7.StringAndString__Tovoid$2(),
    allowElement: T$7.String__Tovoid$7(),
    allowTemplating: T$.VoidTovoid(),
    add: T$7.NodeValidatorTovoid(),
    allowsElement: T$4.ElementTobool(),
    allowsAttribute: T$6.ElementAndStringAndStringTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.NodeValidatorBuilder))));
  dart.setLibraryUri(html$.NodeValidatorBuilder, I[167]);
  dart.setFieldSignature(html$.NodeValidatorBuilder, () => dart.global.Object.setPrototypeOf({[S$3._validators]: {type: T$7.ListOfNodeValidator(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$.NodeValidatorBuilder))));
  html$._SimpleNodeValidator = class _SimpleNodeValidator extends core.Object {
    static allowNavigation(uriPolicy) {
      if (uriPolicy == null) dart.nullFailed(I[166], 39492, 58, "uriPolicy");
      return new html$._SimpleNodeValidator.new(uriPolicy, {allowedElements: C[457] || CT.C457, allowedAttributes: C[458] || CT.C458, allowedUriAttributes: C[459] || CT.C459});
    }
    static ['_#allowNavigation#tearOff'](uriPolicy) {
      if (uriPolicy == null) dart.nullFailed(I[166], 39492, 58, "uriPolicy");
      return html$._SimpleNodeValidator.allowNavigation(uriPolicy);
    }
    static allowImages(uriPolicy) {
      if (uriPolicy == null) dart.nullFailed(I[166], 39518, 54, "uriPolicy");
      return new html$._SimpleNodeValidator.new(uriPolicy, {allowedElements: C[460] || CT.C460, allowedAttributes: C[461] || CT.C461, allowedUriAttributes: C[462] || CT.C462});
    }
    static ['_#allowImages#tearOff'](uriPolicy) {
      if (uriPolicy == null) dart.nullFailed(I[166], 39518, 54, "uriPolicy");
      return html$._SimpleNodeValidator.allowImages(uriPolicy);
    }
    static allowTextElements() {
      return new html$._SimpleNodeValidator.new(null, {allowedElements: C[463] || CT.C463});
    }
    static ['_#allowTextElements#tearOff']() {
      return html$._SimpleNodeValidator.allowTextElements();
    }
    static ['_#new#tearOff'](uriPolicy, opts) {
      let allowedElements = opts && 'allowedElements' in opts ? opts.allowedElements : null;
      let allowedAttributes = opts && 'allowedAttributes' in opts ? opts.allowedAttributes : null;
      let allowedUriAttributes = opts && 'allowedUriAttributes' in opts ? opts.allowedUriAttributes : null;
      return new html$._SimpleNodeValidator.new(uriPolicy, {allowedElements: allowedElements, allowedAttributes: allowedAttributes, allowedUriAttributes: allowedUriAttributes});
    }
    allowsElement(element) {
      if (element == null) dart.nullFailed(I[166], 39580, 30, "element");
      return this.allowedElements.contains(html$.Element._safeTagName(element));
    }
    allowsAttribute(element, attributeName, value) {
      if (element == null) dart.nullFailed(I[166], 39584, 32, "element");
      if (attributeName == null) dart.nullFailed(I[166], 39584, 48, "attributeName");
      if (value == null) dart.nullFailed(I[166], 39584, 70, "value");
      let tagName = html$.Element._safeTagName(element);
      if (dart.test(this.allowedUriAttributes.contains(dart.str(tagName) + "::" + dart.str(attributeName)))) {
        return dart.nullCheck(this.uriPolicy).allowsUri(value);
      } else if (dart.test(this.allowedUriAttributes.contains("*::" + dart.str(attributeName)))) {
        return dart.nullCheck(this.uriPolicy).allowsUri(value);
      } else if (dart.test(this.allowedAttributes.contains(dart.str(tagName) + "::" + dart.str(attributeName)))) {
        return true;
      } else if (dart.test(this.allowedAttributes.contains("*::" + dart.str(attributeName)))) {
        return true;
      } else if (dart.test(this.allowedAttributes.contains(dart.str(tagName) + "::*"))) {
        return true;
      } else if (dart.test(this.allowedAttributes.contains("*::*"))) {
        return true;
      }
      return false;
    }
  };
  (html$._SimpleNodeValidator.new = function(uriPolicy, opts) {
    let t$36372, t$36372$, t$36372$0;
    let allowedElements = opts && 'allowedElements' in opts ? opts.allowedElements : null;
    let allowedAttributes = opts && 'allowedAttributes' in opts ? opts.allowedAttributes : null;
    let allowedUriAttributes = opts && 'allowedUriAttributes' in opts ? opts.allowedUriAttributes : null;
    this.allowedElements = new (G$._IdentityHashSetOfString()).new();
    this.allowedAttributes = new (G$._IdentityHashSetOfString()).new();
    this.allowedUriAttributes = new (G$._IdentityHashSetOfString()).new();
    this.uriPolicy = uriPolicy;
    this.allowedElements.addAll((t$36372 = allowedElements, t$36372 == null ? C[456] || CT.C456 : t$36372));
    allowedAttributes = (t$36372$ = allowedAttributes, t$36372$ == null ? C[456] || CT.C456 : t$36372$);
    allowedUriAttributes = (t$36372$0 = allowedUriAttributes, t$36372$0 == null ? C[456] || CT.C456 : t$36372$0);
    let legalAttributes = allowedAttributes[$where](dart.fn(x => {
      if (x == null) dart.nullFailed(I[166], 39572, 17, "x");
      return !dart.test(html$._Html5NodeValidator._uriAttributes[$contains](x));
    }, T$.StringTobool()));
    let extraUriAttributes = allowedAttributes[$where](dart.fn(x => {
      if (x == null) dart.nullFailed(I[166], 39574, 17, "x");
      return html$._Html5NodeValidator._uriAttributes[$contains](x);
    }, T$.StringTobool()));
    this.allowedAttributes.addAll(legalAttributes);
    this.allowedUriAttributes.addAll(allowedUriAttributes);
    this.allowedUriAttributes.addAll(extraUriAttributes);
  }).prototype = html$._SimpleNodeValidator.prototype;
  dart.addRtiResources(html$._SimpleNodeValidator, ["html|_SimpleNodeValidator", "html|NodeValidator"]);
  dart.setMethodSignature(html$._SimpleNodeValidator, () => dart.global.Object.setPrototypeOf({
    allowsElement: T$4.ElementTobool(),
    allowsAttribute: T$6.ElementAndStringAndStringTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._SimpleNodeValidator))));
  dart.setStaticMethodSignature(html$._SimpleNodeValidator, () => ['allowNavigation', 'allowImages', 'allowTextElements']);
  dart.setLibraryUri(html$._SimpleNodeValidator, I[167]);
  dart.setFieldSignature(html$._SimpleNodeValidator, () => dart.global.Object.setPrototypeOf({
    allowedElements: {type: T$6.SetOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    allowedAttributes: {type: T$6.SetOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    allowedUriAttributes: {type: T$6.SetOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    uriPolicy: {type: T$7.UriPolicyN(), isConst: false, isFinal: true, libraryUri: I[167]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._SimpleNodeValidator))));
  html$._CustomElementNodeValidator = class _CustomElementNodeValidator extends html$._SimpleNodeValidator {
    static ['_#new#tearOff'](uriPolicy, allowedElements, allowedAttributes, allowedUriAttributes, allowTypeExtension, allowCustomTag) {
      if (uriPolicy == null) dart.nullFailed(I[166], 39608, 17, "uriPolicy");
      if (allowedElements == null) dart.nullFailed(I[166], 39609, 24, "allowedElements");
      if (allowTypeExtension == null) dart.nullFailed(I[166], 39612, 12, "allowTypeExtension");
      if (allowCustomTag == null) dart.nullFailed(I[166], 39613, 12, "allowCustomTag");
      return new html$._CustomElementNodeValidator.new(uriPolicy, allowedElements, allowedAttributes, allowedUriAttributes, allowTypeExtension, allowCustomTag);
    }
    allowsElement(element) {
      if (element == null) dart.nullFailed(I[166], 39621, 30, "element");
      if (dart.test(this.allowTypeExtension)) {
        let isAttr = element[S.$attributes][$_get]("is");
        if (isAttr != null) {
          return dart.test(this.allowedElements.contains(isAttr[$toUpperCase]())) && dart.test(this.allowedElements.contains(html$.Element._safeTagName(element)));
        }
      }
      return dart.test(this.allowCustomTag) && dart.test(this.allowedElements.contains(html$.Element._safeTagName(element)));
    }
    allowsAttribute(element, attributeName, value) {
      if (element == null) dart.nullFailed(I[166], 39633, 32, "element");
      if (attributeName == null) dart.nullFailed(I[166], 39633, 48, "attributeName");
      if (value == null) dart.nullFailed(I[166], 39633, 70, "value");
      if (dart.test(this.allowsElement(element))) {
        if (dart.test(this.allowTypeExtension) && attributeName === "is" && dart.test(this.allowedElements.contains(value[$toUpperCase]()))) {
          return true;
        }
        return super.allowsAttribute(element, attributeName, value);
      }
      return false;
    }
  };
  (html$._CustomElementNodeValidator.new = function(uriPolicy, allowedElements, allowedAttributes, allowedUriAttributes, allowTypeExtension, allowCustomTag) {
    if (uriPolicy == null) dart.nullFailed(I[166], 39608, 17, "uriPolicy");
    if (allowedElements == null) dart.nullFailed(I[166], 39609, 24, "allowedElements");
    if (allowTypeExtension == null) dart.nullFailed(I[166], 39612, 12, "allowTypeExtension");
    if (allowCustomTag == null) dart.nullFailed(I[166], 39613, 12, "allowCustomTag");
    this.allowTypeExtension = allowTypeExtension === true;
    this.allowCustomTag = allowCustomTag === true;
    dart.global.Object.getPrototypeOf(html$._CustomElementNodeValidator).new.call(this, uriPolicy, {allowedElements: allowedElements, allowedAttributes: allowedAttributes, allowedUriAttributes: allowedUriAttributes});
    ;
  }).prototype = html$._CustomElementNodeValidator.prototype;
  dart.addRtiResources(html$._CustomElementNodeValidator, ["html|_CustomElementNodeValidator"]);
  dart.setLibraryUri(html$._CustomElementNodeValidator, I[167]);
  dart.setFieldSignature(html$._CustomElementNodeValidator, () => dart.global.Object.setPrototypeOf({
    allowTypeExtension: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    allowCustomTag: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._CustomElementNodeValidator))));
  html$._TemplatingNodeValidator = class _TemplatingNodeValidator extends html$._SimpleNodeValidator {
    static ['_#new#tearOff']() {
      return new html$._TemplatingNodeValidator.new();
    }
    allowsAttribute(element, attributeName, value) {
      if (element == null) dart.nullFailed(I[166], 39664, 32, "element");
      if (attributeName == null) dart.nullFailed(I[166], 39664, 48, "attributeName");
      if (value == null) dart.nullFailed(I[166], 39664, 70, "value");
      if (dart.test(super.allowsAttribute(element, attributeName, value))) {
        return true;
      }
      if (attributeName === "template" && value === "") {
        return true;
      }
      if (element[S.$attributes][$_get]("template") === "") {
        return this[S$3._templateAttrs].contains(attributeName);
      }
      return false;
    }
  };
  (html$._TemplatingNodeValidator.new = function() {
    this[S$3._templateAttrs] = G$.LinkedHashSetOfString().from(html$._TemplatingNodeValidator._TEMPLATE_ATTRS);
    dart.global.Object.getPrototypeOf(html$._TemplatingNodeValidator).new.call(this, null, {allowedElements: G.JSArrayOfString().of(["TEMPLATE"]), allowedAttributes: html$._TemplatingNodeValidator._TEMPLATE_ATTRS[$map](T$.String(), dart.fn(attr => {
        if (attr == null) dart.nullFailed(I[166], 39662, 38, "attr");
        return "TEMPLATE::" + dart.str(attr);
      }, T$.StringToString()))});
  }).prototype = html$._TemplatingNodeValidator.prototype;
  dart.addRtiResources(html$._TemplatingNodeValidator, ["html|_TemplatingNodeValidator"]);
  dart.setLibraryUri(html$._TemplatingNodeValidator, I[167]);
  dart.setFieldSignature(html$._TemplatingNodeValidator, () => dart.global.Object.setPrototypeOf({[S$3._templateAttrs]: {type: T$6.SetOfString(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._TemplatingNodeValidator))));
  dart.setStaticFieldSignature(html$._TemplatingNodeValidator, () => ['_TEMPLATE_ATTRS']);
  dart.defineLazy(html$._TemplatingNodeValidator, {
    /*html$._TemplatingNodeValidator._TEMPLATE_ATTRS*/get _TEMPLATE_ATTRS() {
      return C[464] || CT.C464;
    }
  }, false);
  html$._SvgNodeValidator = class _SvgNodeValidator extends core.Object {
    allowsElement(element) {
      if (element == null) dart.nullFailed(I[166], 39681, 30, "element");
      if (T$7.ScriptElement()[_is](element)) {
        return false;
      }
      if (T$7.SvgElement()[_is](element) && html$.Element._safeTagName(element) === "foreignObject") {
        return false;
      }
      if (T$7.SvgElement()[_is](element)) {
        return true;
      }
      return false;
    }
    allowsAttribute(element, attributeName, value) {
      if (element == null) dart.nullFailed(I[166], 39699, 32, "element");
      if (attributeName == null) dart.nullFailed(I[166], 39699, 48, "attributeName");
      if (value == null) dart.nullFailed(I[166], 39699, 70, "value");
      if (attributeName === "is" || attributeName[$startsWith]("on")) {
        return false;
      }
      return this.allowsElement(element);
    }
    static ['_#new#tearOff']() {
      return new html$._SvgNodeValidator.new();
    }
  };
  (html$._SvgNodeValidator.new = function() {
    ;
  }).prototype = html$._SvgNodeValidator.prototype;
  dart.addRtiResources(html$._SvgNodeValidator, ["html|_SvgNodeValidator", "html|NodeValidator"]);
  dart.setMethodSignature(html$._SvgNodeValidator, () => dart.global.Object.setPrototypeOf({
    allowsElement: T$4.ElementTobool(),
    allowsAttribute: T$6.ElementAndStringAndStringTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._SvgNodeValidator))));
  dart.setLibraryUri(html$._SvgNodeValidator, I[167]);
  html$.ReadyState = class ReadyState extends core.Object {};
  (html$.ReadyState.new = function() {
    ;
  }).prototype = html$.ReadyState.prototype;
  dart.addRtiResources(html$.ReadyState, ["html|ReadyState"]);
  dart.setLibraryUri(html$.ReadyState, I[167]);
  dart.setStaticFieldSignature(html$.ReadyState, () => ['LOADING', 'INTERACTIVE', 'COMPLETE']);
  dart.defineLazy(html$.ReadyState, {
    /*html$.ReadyState.LOADING*/get LOADING() {
      return "loading";
    },
    /*html$.ReadyState.INTERACTIVE*/get INTERACTIVE() {
      return "interactive";
    },
    /*html$.ReadyState.COMPLETE*/get COMPLETE() {
      return "complete";
    }
  }, false);
  html$._WrappedList$ = dart.generic(E => {
    var __t$_WrappedListOfE = () => (__t$_WrappedListOfE = dart.constFn(E[_eval]("html|_WrappedList<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$EN = () => (__t$EN = dart.constFn(E[_eval]("0?")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$_WrappedIteratorOfE = () => (__t$_WrappedIteratorOfE = dart.constFn(html$._WrappedIterator$(E)))();
    var __t$ListBaseOfE = () => (__t$ListBaseOfE = dart.constFn(collection.ListBase$(E)))();
    class _WrappedList extends __t$ListBaseOfE() {
      static ['_#new#tearOff'](E, _list) {
        if (_list == null) dart.nullFailed(I[166], 39742, 21, "_list");
        return new (html$._WrappedList$(E)).new(_list);
      }
      get iterator() {
        return new (__t$_WrappedIteratorOfE()).new(this[S$3._list$19][$iterator]);
      }
      get length() {
        return this[S$3._list$19][$length];
      }
      add(element) {
        E[_as](element);
        if (element == null) dart.nullFailed(I[166], 39752, 14, "element");
        this[S$3._list$19][$add](element);
      }
      remove(element) {
        return this[S$3._list$19][$remove](element);
      }
      clear() {
        this[S$3._list$19][$clear]();
      }
      _get(index) {
        if (index == null) dart.nullFailed(I[166], 39764, 21, "index");
        return E[_as](this[S$3._list$19][$_get](index));
      }
      _set(index, value$) {
        let value = value$;
        if (index == null) dart.nullFailed(I[166], 39766, 25, "index");
        E[_as](value);
        if (value == null) dart.nullFailed(I[166], 39766, 34, "value");
        this[S$3._list$19][$_set](index, value);
        return value$;
      }
      set length(newLength) {
        if (newLength == null) dart.nullFailed(I[166], 39770, 18, "newLength");
        this[S$3._list$19][$length] = newLength;
      }
      sort(compare = null) {
        if (compare == null) {
          this[S$3._list$19][$sort]();
        } else {
          this[S$3._list$19][$sort](dart.fn((a, b) => {
            if (a == null) dart.nullFailed(I[166], 39778, 24, "a");
            if (b == null) dart.nullFailed(I[166], 39778, 32, "b");
            return compare(E[_as](a), E[_as](b));
          }, T$7.NodeAndNodeToint()));
        }
      }
      indexOf(element, start = 0) {
        if (start == null) dart.nullFailed(I[166], 39782, 37, "start");
        return this[S$3._list$19][$indexOf](T$5.Node()[_as](element), start);
      }
      lastIndexOf(element, start = null) {
        return this[S$3._list$19][$lastIndexOf](T$5.Node()[_as](element), start);
      }
      insert(index, element) {
        if (index == null) dart.nullFailed(I[166], 39788, 19, "index");
        E[_as](element);
        if (element == null) dart.nullFailed(I[166], 39788, 28, "element");
        return this[S$3._list$19][$insert](index, element);
      }
      removeAt(index) {
        if (index == null) dart.nullFailed(I[166], 39790, 18, "index");
        return E[_as](this[S$3._list$19][$removeAt](index));
      }
      setRange(start, end, iterable, skipCount = 0) {
        if (start == null) dart.nullFailed(I[166], 39792, 21, "start");
        if (end == null) dart.nullFailed(I[166], 39792, 32, "end");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[166], 39792, 49, "iterable");
        if (skipCount == null) dart.nullFailed(I[166], 39792, 64, "skipCount");
        this[S$3._list$19][$setRange](start, end, iterable, skipCount);
      }
      removeRange(start, end) {
        if (start == null) dart.nullFailed(I[166], 39796, 24, "start");
        if (end == null) dart.nullFailed(I[166], 39796, 35, "end");
        this[S$3._list$19][$removeRange](start, end);
      }
      replaceRange(start, end, iterable) {
        if (start == null) dart.nullFailed(I[166], 39800, 25, "start");
        if (end == null) dart.nullFailed(I[166], 39800, 36, "end");
        __t$IterableOfE()[_as](iterable);
        if (iterable == null) dart.nullFailed(I[166], 39800, 53, "iterable");
        this[S$3._list$19][$replaceRange](start, end, iterable);
      }
      fillRange(start, end, fillValue = null) {
        if (start == null) dart.nullFailed(I[166], 39804, 22, "start");
        if (end == null) dart.nullFailed(I[166], 39804, 33, "end");
        __t$EN()[_as](fillValue);
        this[S$3._list$19][$fillRange](start, end, fillValue);
      }
      get rawList() {
        return this[S$3._list$19];
      }
    }
    (_WrappedList.new = function(_list) {
      if (_list == null) dart.nullFailed(I[166], 39742, 21, "_list");
      this[S$3._list$19] = _list;
      this.$ti = this.$ti || __t$_WrappedListOfE();
      dart.global.Object.getPrototypeOf(_WrappedList).new.call(this);
      ;
    }).prototype = _WrappedList.prototype;
    dart.addRtiResources(_WrappedList, ["html|_WrappedList", "html_common|NodeListWrapper"]);
    dart.setMethodSignature(_WrappedList, () => dart.global.Object.setPrototypeOf({
      _get: __t$intToE(),
      [$_get]: __t$intToE(),
      _set: T$.intAndObjectNTovoid(),
      [$_set]: T$.intAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_WrappedList))));
    dart.setGetterSignature(_WrappedList, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int(),
      rawList: T$3.ListOfNode$1()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_WrappedList))));
    dart.setSetterSignature(_WrappedList, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(_WrappedList))));
    dart.setLibraryUri(_WrappedList, I[167]);
    dart.setFieldSignature(_WrappedList, () => dart.global.Object.setPrototypeOf({[S$3._list$19]: {type: T$3.ListOfNode$1(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_WrappedList))));
    dart.defineExtensionMethods(_WrappedList, [
      'add',
      'remove',
      'clear',
      '_get',
      '_set',
      'sort',
      'indexOf',
      'lastIndexOf',
      'insert',
      'removeAt',
      'setRange',
      'removeRange',
      'replaceRange',
      'fillRange'
    ]);
    dart.defineExtensionAccessors(_WrappedList, ['iterator', 'length']);
    return _WrappedList;
  });
  html$._WrappedList = html$._WrappedList$();
  html$._WrappedIterator$ = dart.generic(E => {
    var __t$_WrappedIteratorOfE = () => (__t$_WrappedIteratorOfE = dart.constFn(E[_eval]("html|_WrappedIterator<0>")))();
    class _WrappedIterator extends core.Object {
      static ['_#new#tearOff'](E, _iterator) {
        if (_iterator == null) dart.nullFailed(I[166], 39817, 25, "_iterator");
        return new (html$._WrappedIterator$(E)).new(_iterator);
      }
      moveNext() {
        return this[S$3._iterator$2].moveNext();
      }
      get current() {
        return E[_as](this[S$3._iterator$2].current);
      }
    }
    (_WrappedIterator.new = function(_iterator) {
      if (_iterator == null) dart.nullFailed(I[166], 39817, 25, "_iterator");
      this[S$3._iterator$2] = _iterator;
      this.$ti = this.$ti || __t$_WrappedIteratorOfE();
      ;
    }).prototype = _WrappedIterator.prototype;
    dart.addRtiResources(_WrappedIterator, ["html|_WrappedIterator", "core|Iterator"]);
    dart.setMethodSignature(_WrappedIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_WrappedIterator))));
    dart.setGetterSignature(_WrappedIterator, () => dart.global.Object.setPrototypeOf({current: E}, dart.getGetters(dart.global.Object.getPrototypeOf(_WrappedIterator))));
    dart.setLibraryUri(_WrappedIterator, I[167]);
    dart.setFieldSignature(_WrappedIterator, () => dart.global.Object.setPrototypeOf({[S$3._iterator$2]: {type: T$7.IteratorOfNode(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_WrappedIterator))));
    return _WrappedIterator;
  });
  html$._WrappedIterator = html$._WrappedIterator$();
  html$._HttpRequestUtils = class _HttpRequestUtils extends core.Object {
    static get(url, onComplete, withCredentials) {
      if (url == null) dart.nullFailed(I[166], 39832, 14, "url");
      if (onComplete == null) dart.nullFailed(I[166], 39832, 19, "onComplete");
      if (withCredentials == null) dart.nullFailed(I[166], 39832, 57, "withCredentials");
      let request = html$.HttpRequest.new();
      request.open("GET", url, {async: true});
      request.withCredentials = withCredentials;
      request[S$1.$onReadyStateChange].listen(dart.fn(e => {
        if (e == null) dart.nullFailed(I[166], 39838, 40, "e");
        if (request.readyState === 4) {
          onComplete(request);
        }
      }, T$3.EventTovoid()));
      request.send();
      return request;
    }
    static ['_#new#tearOff']() {
      return new html$._HttpRequestUtils.new();
    }
  };
  (html$._HttpRequestUtils.new = function() {
    ;
  }).prototype = html$._HttpRequestUtils.prototype;
  dart.addRtiResources(html$._HttpRequestUtils, ["html|_HttpRequestUtils"]);
  dart.setStaticMethodSignature(html$._HttpRequestUtils, () => ['get']);
  dart.setLibraryUri(html$._HttpRequestUtils, I[167]);
  html$.FixedSizeListIterator$ = dart.generic(T => {
    var __t$FixedSizeListIteratorOfT = () => (__t$FixedSizeListIteratorOfT = dart.constFn(T[_eval]("html|FixedSizeListIterator<0>")))();
    var __t$ListOfT = () => (__t$ListOfT = dart.constFn(T[_eval]("core|List<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    class FixedSizeListIterator extends core.Object {
      static ['_#new#tearOff'](T, array) {
        if (array == null) dart.nullFailed(I[166], 39860, 33, "array");
        return new (html$.FixedSizeListIterator$(T)).new(array);
      }
      moveNext() {
        let nextPosition = dart.notNull(this[S$0._position$2]) + 1;
        if (nextPosition < dart.notNull(this[S$2._length$3])) {
          this[S$3._current$5] = this[S$3._array][$_get](nextPosition);
          this[S$0._position$2] = nextPosition;
          return true;
        }
        this[S$3._current$5] = null;
        this[S$0._position$2] = this[S$2._length$3];
        return false;
      }
      get current() {
        return T[_as](this[S$3._current$5]);
      }
    }
    (FixedSizeListIterator.new = function(array) {
      if (array == null) dart.nullFailed(I[166], 39860, 33, "array");
      this[S$3._current$5] = null;
      this[S$3._array] = array;
      this[S$0._position$2] = -1;
      this[S$2._length$3] = array[$length];
      this.$ti = this.$ti || __t$FixedSizeListIteratorOfT();
      ;
    }).prototype = FixedSizeListIterator.prototype;
    dart.addRtiResources(FixedSizeListIterator, ["html|FixedSizeListIterator", "core|Iterator"]);
    dart.setMethodSignature(FixedSizeListIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(FixedSizeListIterator))));
    dart.setGetterSignature(FixedSizeListIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(FixedSizeListIterator))));
    dart.setLibraryUri(FixedSizeListIterator, I[167]);
    dart.setFieldSignature(FixedSizeListIterator, () => dart.global.Object.setPrototypeOf({
      [S$3._array]: {type: __t$ListOfT(), isConst: false, isFinal: true, libraryUri: I[11]},
      [S$2._length$3]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [S$0._position$2]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [S$3._current$5]: {type: __t$TN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(FixedSizeListIterator))));
    return FixedSizeListIterator;
  });
  html$.FixedSizeListIterator = html$.FixedSizeListIterator$();
  html$._VariableSizeListIterator$ = dart.generic(T => {
    var __t$_VariableSizeListIteratorOfT = () => (__t$_VariableSizeListIteratorOfT = dart.constFn(T[_eval]("html|_VariableSizeListIterator<0>")))();
    var __t$ListOfT = () => (__t$ListOfT = dart.constFn(T[_eval]("core|List<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    class _VariableSizeListIterator extends core.Object {
      static ['_#new#tearOff'](T, array) {
        if (array == null) dart.nullFailed(I[166], 39886, 37, "array");
        return new (html$._VariableSizeListIterator$(T)).new(array);
      }
      moveNext() {
        let nextPosition = dart.notNull(this[S$0._position$2]) + 1;
        if (nextPosition < dart.notNull(this[S$3._array][$length])) {
          this[S$3._current$5] = this[S$3._array][$_get](nextPosition);
          this[S$0._position$2] = nextPosition;
          return true;
        }
        this[S$3._current$5] = null;
        this[S$0._position$2] = this[S$3._array][$length];
        return false;
      }
      get current() {
        return T[_as](this[S$3._current$5]);
      }
    }
    (_VariableSizeListIterator.new = function(array) {
      if (array == null) dart.nullFailed(I[166], 39886, 37, "array");
      this[S$3._current$5] = null;
      this[S$3._array] = array;
      this[S$0._position$2] = -1;
      this.$ti = this.$ti || __t$_VariableSizeListIteratorOfT();
      ;
    }).prototype = _VariableSizeListIterator.prototype;
    dart.addRtiResources(_VariableSizeListIterator, ["html|_VariableSizeListIterator", "core|Iterator"]);
    dart.setMethodSignature(_VariableSizeListIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_VariableSizeListIterator))));
    dart.setGetterSignature(_VariableSizeListIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(_VariableSizeListIterator))));
    dart.setLibraryUri(_VariableSizeListIterator, I[167]);
    dart.setFieldSignature(_VariableSizeListIterator, () => dart.global.Object.setPrototypeOf({
      [S$3._array]: {type: __t$ListOfT(), isConst: false, isFinal: true, libraryUri: I[11]},
      [S$0._position$2]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      [S$3._current$5]: {type: __t$TN(), isConst: false, isFinal: false}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_VariableSizeListIterator))));
    return _VariableSizeListIterator;
  });
  html$._VariableSizeListIterator = html$._VariableSizeListIterator$();
  html$.Console = class Console extends core.Object {
    static ['_#_safe#tearOff']() {
      return new html$.Console._safe();
    }
    get [S$3._isConsoleDefined]() {
      return typeof console != "undefined";
    }
    get memory() {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.memory : null;
    }
    assertCondition(condition = null, arg = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.assert(condition, arg) : null;
    }
    clear(arg = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.clear(arg) : null;
    }
    count(arg = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.count(arg) : null;
    }
    countReset(arg = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.countReset(arg) : null;
    }
    debug(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.debug(arg) : null;
    }
    dir(item = null, options = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.dir(item, options) : null;
    }
    dirxml(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.dirxml(arg) : null;
    }
    error(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.error(arg) : null;
    }
    group(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.group(arg) : null;
    }
    groupCollapsed(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.groupCollapsed(arg) : null;
    }
    groupEnd() {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.groupEnd() : null;
    }
    info(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.info(arg) : null;
    }
    log(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.log(arg) : null;
    }
    table(tabularData = null, properties = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.table(tabularData, properties) : null;
    }
    time(label = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.time(label) : null;
    }
    timeEnd(label = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.timeEnd(label) : null;
    }
    timeLog(label = null, arg = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.timeLog(label, arg) : null;
    }
    trace(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.trace(arg) : null;
    }
    warn(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.warn(arg) : null;
    }
    profile(title = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.profile(title) : null;
    }
    profileEnd(title = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.profileEnd(title) : null;
    }
    timeStamp(arg = null) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.timeStamp(arg) : null;
    }
    markTimeline(arg) {
      return dart.test(this[S$3._isConsoleDefined]) ? window.console.markTimeline(arg) : null;
    }
  };
  (html$.Console._safe = function() {
    ;
  }).prototype = html$.Console.prototype;
  dart.addRtiResources(html$.Console, ["html|Console"]);
  dart.setMethodSignature(html$.Console, () => dart.global.Object.setPrototypeOf({
    assertCondition: T$7.boolNAndObjectNTovoid(),
    clear: T$0.ObjectNTovoid$1(),
    count: T$0.ObjectNTovoid$1(),
    countReset: T$4.StringNTovoid$1(),
    debug: T$.ObjectNTovoid(),
    dir: T$7.ObjectNAndObjectNTovoid$2(),
    dirxml: T$.ObjectNTovoid(),
    error: T$.ObjectNTovoid(),
    group: T$.ObjectNTovoid(),
    groupCollapsed: T$.ObjectNTovoid(),
    groupEnd: T$.VoidTovoid(),
    info: T$.ObjectNTovoid(),
    log: T$.ObjectNTovoid(),
    table: T$7.ObjectNAndListNOfStringTovoid(),
    time: T$4.StringNTovoid$1(),
    timeEnd: T$4.StringNTovoid$1(),
    timeLog: T$7.StringNAndObjectNTovoid(),
    trace: T$.ObjectNTovoid(),
    warn: T$.ObjectNTovoid(),
    profile: T$4.StringNTovoid$1(),
    profileEnd: T$4.StringNTovoid$1(),
    timeStamp: T$0.ObjectNTovoid$1(),
    markTimeline: T$.ObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.Console))));
  dart.setGetterSignature(html$.Console, () => dart.global.Object.setPrototypeOf({
    [S$3._isConsoleDefined]: T$.bool(),
    memory: T.MemoryInfoN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.Console))));
  dart.setLibraryUri(html$.Console, I[167]);
  dart.setStaticFieldSignature(html$.Console, () => ['_safeConsole']);
  dart.defineLazy(html$.Console, {
    /*html$.Console._safeConsole*/get _safeConsole() {
      return C[465] || CT.C465;
    }
  }, false);
  html$._JSElementUpgrader = class _JSElementUpgrader extends core.Object {
    static ['_#new#tearOff'](document, type, extendsTag) {
      if (document == null) dart.nullFailed(I[166], 40081, 31, "document");
      if (type == null) dart.nullFailed(I[166], 40081, 46, "type");
      return new html$._JSElementUpgrader.new(document, type, extendsTag);
    }
    upgrade(element) {
      if (element == null) dart.nullFailed(I[166], 40116, 27, "element");
      if (!dart.equals(dart.runtimeType(element), this[S$3._nativeType])) {
        if (!dart.equals(this[S$3._nativeType], dart_rti.createRuntimeType(T$7.HtmlElement())) || !dart.equals(dart.runtimeType(element), dart_rti.createRuntimeType(T$3.UnknownElement()))) {
          dart.throw(new core.ArgumentError.new("element is not subclass of " + dart.str(this[S$3._nativeType])));
        }
      }
      _js_helper.setNativeSubclassDispatchRecord(element, this[S$3._interceptor]);
      this[S$3._constructor](element);
      return element;
    }
  };
  (html$._JSElementUpgrader.new = function(document, type, extendsTag) {
    if (document == null) dart.nullFailed(I[166], 40081, 31, "document");
    if (type == null) dart.nullFailed(I[166], 40081, 46, "type");
    this[S$3._interceptor] = null;
    this[S$3._constructor] = null;
    this[S$3._nativeType] = null;
    let interceptorClass = _interceptors.findInterceptorConstructorForType(type);
    if (interceptorClass == null) {
      dart.throw(new core.ArgumentError.new(type));
    }
    this[S$3._constructor] = _interceptors.findConstructorForNativeSubclassType(type, "created");
    if (this[S$3._constructor] == null) {
      dart.throw(new core.ArgumentError.new(dart.str(type) + " has no constructor called 'created'"));
    }
    _interceptors.getNativeInterceptor(html$.Element.tag("article"));
    let baseClassName = _js_helper.findDispatchTagForInterceptorClass(interceptorClass);
    if (baseClassName == null) {
      dart.throw(new core.ArgumentError.new(type));
    }
    if (extendsTag == null) {
      if (!dart.equals(baseClassName, "HTMLElement")) {
        dart.throw(new core.UnsupportedError.new("Class must provide extendsTag if base native class is not HtmlElement"));
      }
      this[S$3._nativeType] = dart_rti.createRuntimeType(T$7.HtmlElement());
    } else {
      let element = document[S.$createElement](extendsTag);
      html$._checkExtendsNativeClassOrTemplate(element, extendsTag, T$.String()[_as](baseClassName));
      this[S$3._nativeType] = dart.runtimeType(element);
    }
    this[S$3._interceptor] = interceptorClass.prototype;
  }).prototype = html$._JSElementUpgrader.prototype;
  dart.addRtiResources(html$._JSElementUpgrader, ["html|_JSElementUpgrader", "html|ElementUpgrader"]);
  dart.setMethodSignature(html$._JSElementUpgrader, () => dart.global.Object.setPrototypeOf({upgrade: T$5.ElementToElement()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$._JSElementUpgrader))));
  dart.setLibraryUri(html$._JSElementUpgrader, I[167]);
  dart.setFieldSignature(html$._JSElementUpgrader, () => dart.global.Object.setPrototypeOf({
    [S$3._interceptor]: {type: T$.dynamic(), isConst: false, isFinal: false},
    [S$3._constructor]: {type: T$.dynamic(), isConst: false, isFinal: false},
    [S$3._nativeType]: {type: T$.dynamic(), isConst: false, isFinal: false}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._JSElementUpgrader))));
  html$._DOMWindowCrossFrame = class _DOMWindowCrossFrame extends core.Object {
    get [S$3._window]() {
      let w = this[S$3.__window];
      if (w == null) dart.throw(new html$.NullWindowException.new());
      return w;
    }
    get history() {
      return html$._HistoryCrossFrame._createSafe(this[S$3._window].history);
    }
    get location() {
      return html$._LocationCrossFrame._createSafe(this[S$3._window].location);
    }
    get closed() {
      return this[S$3._window].closed;
    }
    get opener() {
      return html$._DOMWindowCrossFrame._createSafe(this[S$3._window].opener);
    }
    get parent() {
      return html$._DOMWindowCrossFrame._createSafe(this[S$3._window].parent);
    }
    get top() {
      return html$._DOMWindowCrossFrame._createSafe(this[S$3._window].top);
    }
    close() {
      return this[S$3._window].close();
    }
    postMessage(message, targetOrigin, messagePorts = null) {
      if (targetOrigin == null) dart.nullFailed(I[166], 40173, 40, "targetOrigin");
      if (messagePorts == null) {
        this[S$3._window].postMessage(html_common.convertDartToNative_SerializedScriptValue(message), targetOrigin);
      } else {
        this[S$3._window].postMessage(html_common.convertDartToNative_SerializedScriptValue(message), targetOrigin, messagePorts);
      }
    }
    static ['_#new#tearOff'](__window) {
      return new html$._DOMWindowCrossFrame.new(__window);
    }
    static _createSafe(w) {
      if (core.identical(w, html$.window)) {
        return T$7.WindowBase()[_as](w);
      } else {
        _js_helper.registerGlobalObject(w);
        return new html$._DOMWindowCrossFrame.new(w);
      }
    }
    get on() {
      return dart.throw(new core.UnsupportedError.new("You can only attach EventListeners to your own window."));
    }
    [S._addEventListener](type, listener, useCapture = null) {
      return dart.throw(new core.UnsupportedError.new("You can only attach EventListeners to your own window."));
    }
    addEventListener(type, listener, useCapture = null) {
      if (type == null) dart.nullFailed(I[166], 40210, 32, "type");
      return dart.throw(new core.UnsupportedError.new("You can only attach EventListeners to your own window."));
    }
    dispatchEvent(event) {
      if (event == null) dart.nullFailed(I[166], 40215, 28, "event");
      return dart.throw(new core.UnsupportedError.new("You can only attach EventListeners to your own window."));
    }
    [S._removeEventListener](type, listener, useCapture = null) {
      return dart.throw(new core.UnsupportedError.new("You can only attach EventListeners to your own window."));
    }
    removeEventListener(type, listener, useCapture = null) {
      if (type == null) dart.nullFailed(I[166], 40223, 35, "type");
      return dart.throw(new core.UnsupportedError.new("You can only attach EventListeners to your own window."));
    }
  };
  (html$._DOMWindowCrossFrame.new = function(__window) {
    this[S$3.__window] = __window;
    ;
  }).prototype = html$._DOMWindowCrossFrame.prototype;
  dart.addRtiResources(html$._DOMWindowCrossFrame, ["html|_DOMWindowCrossFrame", "html|WindowBase", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$._DOMWindowCrossFrame, () => dart.global.Object.setPrototypeOf({
    close: T$.VoidTovoid(),
    [S.$close]: T$.VoidTovoid(),
    postMessage: T$7.dynamicAndStringAndListNTovoid(),
    [S$.$postMessage]: T$7.dynamicAndStringAndListNTovoid(),
    [S._addEventListener]: T$7.StringNAndFnAndboolNTovoid(),
    addEventListener: T$3.StringAndFnAndboolNTovoid(),
    [S.$addEventListener]: T$3.StringAndFnAndboolNTovoid(),
    dispatchEvent: T$3.EventTobool(),
    [S.$dispatchEvent]: T$3.EventTobool(),
    [S._removeEventListener]: T$7.StringNAndFnAndboolNTovoid(),
    removeEventListener: T$3.StringAndFnAndboolNTovoid(),
    [S.$removeEventListener]: T$3.StringAndFnAndboolNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._DOMWindowCrossFrame))));
  dart.setStaticMethodSignature(html$._DOMWindowCrossFrame, () => ['_createSafe']);
  dart.setGetterSignature(html$._DOMWindowCrossFrame, () => dart.global.Object.setPrototypeOf({
    [S$3._window]: T$.Object(),
    history: T$7.HistoryBase(),
    [S$3.$history]: T$7.HistoryBase(),
    location: T$6.LocationBase(),
    [S$0.$location]: T$6.LocationBase(),
    closed: T$.bool(),
    [S$1.$closed]: T$.bool(),
    opener: T$7.WindowBase(),
    [S$3.$opener]: T$7.WindowBase(),
    parent: T$7.WindowBase(),
    [S.$parent]: T$7.WindowBase(),
    top: T$7.WindowBase(),
    [$top]: T$7.WindowBase(),
    on: T$3.Events(),
    [S.$on]: T$3.Events()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._DOMWindowCrossFrame))));
  dart.setLibraryUri(html$._DOMWindowCrossFrame, I[167]);
  dart.setFieldSignature(html$._DOMWindowCrossFrame, () => dart.global.Object.setPrototypeOf({[S$3.__window]: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._DOMWindowCrossFrame))));
  dart.defineExtensionMethods(html$._DOMWindowCrossFrame, [
    'close',
    'postMessage',
    'addEventListener',
    'dispatchEvent',
    'removeEventListener'
  ]);
  dart.defineExtensionAccessors(html$._DOMWindowCrossFrame, [
    'history',
    'location',
    'closed',
    'opener',
    'parent',
    'top',
    'on'
  ]);
  html$._LocationCrossFrame = class _LocationCrossFrame extends core.Object {
    set href(val) {
      if (val == null) dart.nullFailed(I[166], 40235, 19, "val");
      return html$._LocationCrossFrame._setHref(this[S$3._location], val);
    }
    static _setHref(location, val) {
      location.href = val;
    }
    static ['_#new#tearOff'](_location) {
      return new html$._LocationCrossFrame.new(_location);
    }
    static _createSafe(location) {
      if (core.identical(location, html$.window[S$0.$location])) {
        return T$6.LocationBase()[_as](location);
      } else {
        return new html$._LocationCrossFrame.new(location);
      }
    }
  };
  (html$._LocationCrossFrame.new = function(_location) {
    this[S$3._location] = _location;
    ;
  }).prototype = html$._LocationCrossFrame.prototype;
  dart.addRtiResources(html$._LocationCrossFrame, ["html|_LocationCrossFrame", "html|LocationBase"]);
  dart.setStaticMethodSignature(html$._LocationCrossFrame, () => ['_setHref', '_createSafe']);
  dart.setSetterSignature(html$._LocationCrossFrame, () => dart.global.Object.setPrototypeOf({
    href: T$.String(),
    [S$.$href]: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html$._LocationCrossFrame))));
  dart.setLibraryUri(html$._LocationCrossFrame, I[167]);
  dart.setFieldSignature(html$._LocationCrossFrame, () => dart.global.Object.setPrototypeOf({[S$3._location]: {type: T$.dynamic(), isConst: false, isFinal: false}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._LocationCrossFrame))));
  dart.defineExtensionAccessors(html$._LocationCrossFrame, ['href']);
  html$._HistoryCrossFrame = class _HistoryCrossFrame extends core.Object {
    back() {
      return this[S$3._history].back();
    }
    forward() {
      return this[S$3._history].forward();
    }
    go(distance) {
      if (distance == null) dart.nullFailed(I[166], 40263, 15, "distance");
      return this[S$3._history].go(distance);
    }
    static ['_#new#tearOff'](_history) {
      return new html$._HistoryCrossFrame.new(_history);
    }
    static _createSafe(h) {
      if (core.identical(h, html$.window.history)) {
        return T$7.HistoryBase()[_as](h);
      } else {
        return new html$._HistoryCrossFrame.new(h);
      }
    }
  };
  (html$._HistoryCrossFrame.new = function(_history) {
    this[S$3._history] = _history;
    ;
  }).prototype = html$._HistoryCrossFrame.prototype;
  dart.addRtiResources(html$._HistoryCrossFrame, ["html|_HistoryCrossFrame", "html|HistoryBase"]);
  dart.setMethodSignature(html$._HistoryCrossFrame, () => dart.global.Object.setPrototypeOf({
    back: T$.VoidTovoid(),
    [S$1.$back]: T$.VoidTovoid(),
    forward: T$.VoidTovoid(),
    [S$1.$forward]: T$.VoidTovoid(),
    go: T$.intTovoid(),
    [S$1.$go]: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._HistoryCrossFrame))));
  dart.setStaticMethodSignature(html$._HistoryCrossFrame, () => ['_createSafe']);
  dart.setLibraryUri(html$._HistoryCrossFrame, I[167]);
  dart.setFieldSignature(html$._HistoryCrossFrame, () => dart.global.Object.setPrototypeOf({[S$3._history]: {type: T$.dynamic(), isConst: false, isFinal: false}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._HistoryCrossFrame))));
  dart.defineExtensionMethods(html$._HistoryCrossFrame, ['back', 'forward', 'go']);
  html$._WrappedEvent = class _WrappedEvent extends core.Object {
    get wrapped() {
      return this[S$3.wrapped];
    }
    set wrapped(value) {
      super.wrapped = value;
    }
    static ['_#new#tearOff'](wrapped) {
      if (wrapped == null) dart.nullFailed(I[166], 40553, 22, "wrapped");
      return new html$._WrappedEvent.new(wrapped);
    }
    get bubbles() {
      return dart.nullCheck(this.wrapped.bubbles);
    }
    get cancelable() {
      return dart.nullCheck(this.wrapped.cancelable);
    }
    get composed() {
      return dart.nullCheck(this.wrapped.composed);
    }
    get currentTarget() {
      return this.wrapped[S.$currentTarget];
    }
    get defaultPrevented() {
      return this.wrapped.defaultPrevented;
    }
    get eventPhase() {
      return this.wrapped.eventPhase;
    }
    get isTrusted() {
      return dart.nullCheck(this.wrapped.isTrusted);
    }
    get target() {
      return this.wrapped[S.$target];
    }
    get timeStamp() {
      return dart.nullCast(this.wrapped.timeStamp, T$.double());
    }
    get type() {
      return this.wrapped.type;
    }
    [S._initEvent](type, bubbles = null, cancelable = null) {
      if (type == null) dart.nullFailed(I[166], 40575, 26, "type");
      dart.throw(new core.UnsupportedError.new("Cannot initialize this Event."));
    }
    preventDefault() {
      this.wrapped.preventDefault();
    }
    stopImmediatePropagation() {
      this.wrapped.stopImmediatePropagation();
    }
    stopPropagation() {
      this.wrapped.stopPropagation();
    }
    composedPath() {
      return this.wrapped.composedPath();
    }
    get matchingTarget() {
      if (this[S._selector] == null) {
        dart.throw(new core.UnsupportedError.new("Cannot call matchingTarget if this Event did not arise as a result of event delegation."));
      }
      let currentTarget = T$3.ElementN()[_as](this.currentTarget);
      let target = T$3.ElementN()[_as](this.target);
      do {
        if (dart.test(dart.nullCheck(target)[S.$matches](dart.nullCheck(this[S._selector])))) return target;
        target = target[S.$parent];
      } while (target != null && !dart.equals(target, dart.nullCheck(currentTarget)[S.$parent]));
      dart.throw(new core.StateError.new("No selector matched for populating matchedTarget."));
    }
    get path() {
      return T$3.ListOfNode$1()[_as](this.wrapped[S.$path]);
    }
    get [S._get_currentTarget]() {
      return this.wrapped[S._get_currentTarget];
    }
    get [S._get_target]() {
      return this.wrapped[S._get_target];
    }
  };
  (html$._WrappedEvent.new = function(wrapped) {
    if (wrapped == null) dart.nullFailed(I[166], 40553, 22, "wrapped");
    this[S._selector] = null;
    this[S$3.wrapped] = wrapped;
    ;
  }).prototype = html$._WrappedEvent.prototype;
  dart.addRtiResources(html$._WrappedEvent, ["html|_WrappedEvent", "html|Event", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$._WrappedEvent, () => dart.global.Object.setPrototypeOf({
    [S._initEvent]: T$3.StringAndboolNAndboolNTovoid(),
    preventDefault: T$.VoidTovoid(),
    [S.$preventDefault]: T$.VoidTovoid(),
    stopImmediatePropagation: T$.VoidTovoid(),
    [S.$stopImmediatePropagation]: T$.VoidTovoid(),
    stopPropagation: T$.VoidTovoid(),
    [S.$stopPropagation]: T$.VoidTovoid(),
    composedPath: T$3.VoidToListOfEventTarget(),
    [S.$composedPath]: T$3.VoidToListOfEventTarget()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._WrappedEvent))));
  dart.setGetterSignature(html$._WrappedEvent, () => dart.global.Object.setPrototypeOf({
    bubbles: T$.bool(),
    [S.$bubbles]: T$.bool(),
    cancelable: T$.bool(),
    [S.$cancelable]: T$.bool(),
    composed: T$.bool(),
    [S.$composed]: T$.bool(),
    currentTarget: T$3.EventTargetN(),
    [S.$currentTarget]: T$3.EventTargetN(),
    defaultPrevented: T$.bool(),
    [S.$defaultPrevented]: T$.bool(),
    eventPhase: T$.int(),
    [S.$eventPhase]: T$.int(),
    isTrusted: T$.bool(),
    [S.$isTrusted]: T$.bool(),
    target: T$3.EventTargetN(),
    [S.$target]: T$3.EventTargetN(),
    timeStamp: T$.double(),
    [S.$timeStamp]: T$.double(),
    type: T$.String(),
    [S.$type]: T$.String(),
    matchingTarget: T$3.Element(),
    [S.$matchingTarget]: T$3.Element(),
    path: T$3.ListOfNode$1(),
    [S.$path]: T$3.ListOfNode$1(),
    [S._get_currentTarget]: T$.dynamic(),
    [S._get_target]: T$.dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$._WrappedEvent))));
  dart.setLibraryUri(html$._WrappedEvent, I[167]);
  dart.setFieldSignature(html$._WrappedEvent, () => dart.global.Object.setPrototypeOf({
    wrapped: {type: T$5.Event(), isConst: false, isFinal: true, libraryUri: I[167]},
    [S._selector]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._WrappedEvent))));
  dart.defineExtensionMethods(html$._WrappedEvent, ['preventDefault', 'stopImmediatePropagation', 'stopPropagation', 'composedPath']);
  dart.defineExtensionAccessors(html$._WrappedEvent, [
    'bubbles',
    'cancelable',
    'composed',
    'currentTarget',
    'defaultPrevented',
    'eventPhase',
    'isTrusted',
    'target',
    'timeStamp',
    'type',
    'matchingTarget',
    'path'
  ]);
  html$.KeyEvent = class KeyEvent extends html$._WrappedEvent {
    get keyCode() {
      return this[S$3._shadowKeyCode];
    }
    get charCode() {
      return this.type === "keypress" ? this[S$3._shadowCharCode] : 0;
    }
    get altKey() {
      return this[S$3._shadowAltKey];
    }
    get which() {
      return this.keyCode;
    }
    get [S$3._realKeyCode]() {
      return this[S$3._parent$2].keyCode;
    }
    get [S$3._realCharCode]() {
      return this[S$3._parent$2].charCode;
    }
    get [S$3._realAltKey]() {
      return this[S$3._parent$2].altKey;
    }
    get sourceCapabilities() {
      return this.sourceCapabilities;
    }
    static _makeRecord() {
      let interceptor = _foreign_helper.JS_INTERCEPTOR_CONSTANT(dart_rti.createRuntimeType(T$5.KeyboardEvent()));
      return _js_helper.makeLeafDispatchRecord(interceptor);
    }
    static ['_#wrap#tearOff'](parent) {
      if (parent == null) dart.nullFailed(I[166], 40358, 31, "parent");
      return new html$.KeyEvent.wrap(parent);
    }
    static ['_#new#tearOff'](type, opts) {
      if (type == null) dart.nullFailed(I[166], 40372, 27, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 40374, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 40375, 12, "cancelable");
      let keyCode = opts && 'keyCode' in opts ? opts.keyCode : 0;
      if (keyCode == null) dart.nullFailed(I[166], 40376, 11, "keyCode");
      let charCode = opts && 'charCode' in opts ? opts.charCode : 0;
      if (charCode == null) dart.nullFailed(I[166], 40377, 11, "charCode");
      let location = opts && 'location' in opts ? opts.location : 1;
      if (location == null) dart.nullFailed(I[166], 40378, 11, "location");
      let ctrlKey = opts && 'ctrlKey' in opts ? opts.ctrlKey : false;
      if (ctrlKey == null) dart.nullFailed(I[166], 40379, 12, "ctrlKey");
      let altKey = opts && 'altKey' in opts ? opts.altKey : false;
      if (altKey == null) dart.nullFailed(I[166], 40380, 12, "altKey");
      let shiftKey = opts && 'shiftKey' in opts ? opts.shiftKey : false;
      if (shiftKey == null) dart.nullFailed(I[166], 40381, 12, "shiftKey");
      let metaKey = opts && 'metaKey' in opts ? opts.metaKey : false;
      if (metaKey == null) dart.nullFailed(I[166], 40382, 12, "metaKey");
      let currentTarget = opts && 'currentTarget' in opts ? opts.currentTarget : null;
      return html$.KeyEvent.new(type, {view: view, canBubble: canBubble, cancelable: cancelable, keyCode: keyCode, charCode: charCode, location: location, ctrlKey: ctrlKey, altKey: altKey, shiftKey: shiftKey, metaKey: metaKey, currentTarget: currentTarget});
    }
    static new(type, opts) {
      if (type == null) dart.nullFailed(I[166], 40372, 27, "type");
      let view = opts && 'view' in opts ? opts.view : null;
      let canBubble = opts && 'canBubble' in opts ? opts.canBubble : true;
      if (canBubble == null) dart.nullFailed(I[166], 40374, 12, "canBubble");
      let cancelable = opts && 'cancelable' in opts ? opts.cancelable : true;
      if (cancelable == null) dart.nullFailed(I[166], 40375, 12, "cancelable");
      let keyCode = opts && 'keyCode' in opts ? opts.keyCode : 0;
      if (keyCode == null) dart.nullFailed(I[166], 40376, 11, "keyCode");
      let charCode = opts && 'charCode' in opts ? opts.charCode : 0;
      if (charCode == null) dart.nullFailed(I[166], 40377, 11, "charCode");
      let location = opts && 'location' in opts ? opts.location : 1;
      if (location == null) dart.nullFailed(I[166], 40378, 11, "location");
      let ctrlKey = opts && 'ctrlKey' in opts ? opts.ctrlKey : false;
      if (ctrlKey == null) dart.nullFailed(I[166], 40379, 12, "ctrlKey");
      let altKey = opts && 'altKey' in opts ? opts.altKey : false;
      if (altKey == null) dart.nullFailed(I[166], 40380, 12, "altKey");
      let shiftKey = opts && 'shiftKey' in opts ? opts.shiftKey : false;
      if (shiftKey == null) dart.nullFailed(I[166], 40381, 12, "shiftKey");
      let metaKey = opts && 'metaKey' in opts ? opts.metaKey : false;
      if (metaKey == null) dart.nullFailed(I[166], 40382, 12, "metaKey");
      let currentTarget = opts && 'currentTarget' in opts ? opts.currentTarget : null;
      if (view == null) {
        view = html$.window;
      }
      let eventObj = null;
      eventObj = T$5.KeyboardEvent()[_as](html$.Event.eventType("KeyboardEvent", type, {canBubble: canBubble, cancelable: cancelable}));
      Object.defineProperty(eventObj, 'keyCode', {
        get: function() {
          return this.keyCodeVal;
        }
      });
      Object.defineProperty(eventObj, 'which', {
        get: function() {
          return this.keyCodeVal;
        }
      });
      Object.defineProperty(eventObj, 'charCode', {
        get: function() {
          return this.charCodeVal;
        }
      });
      let keyIdentifier = html$.KeyEvent._convertToHexString(charCode, keyCode);
      eventObj[S$1._initKeyboardEvent](type, canBubble, cancelable, view, keyIdentifier, location, ctrlKey, altKey, shiftKey, metaKey);
      eventObj.keyCodeVal = keyCode;
      eventObj.charCodeVal = charCode;
      _interceptors.setDispatchProperty(eventObj, html$.KeyEvent._keyboardEventDispatchRecord);
      let keyEvent = new html$.KeyEvent.wrap(eventObj);
      if (keyEvent[S$3._currentTarget] == null) {
        keyEvent[S$3._currentTarget] = currentTarget == null ? html$.window : currentTarget;
      }
      return keyEvent;
    }
    static get canUseDispatchEvent() {
      return typeof document.body.dispatchEvent == "function" && document.body.dispatchEvent.length > 0;
    }
    get currentTarget() {
      return this[S$3._currentTarget];
    }
    static _convertToHexString(charCode, keyCode) {
      if (charCode == null) dart.nullFailed(I[166], 40444, 41, "charCode");
      if (keyCode == null) dart.nullFailed(I[166], 40444, 55, "keyCode");
      if (charCode !== -1) {
        let hex = charCode[$toRadixString](16);
        let sb = new core.StringBuffer.new("U+");
        for (let i = 0; i < 4 - hex.length; i = i + 1)
          sb.write("0");
        sb.write(hex);
        return dart.toString(sb);
      } else {
        return html$.KeyCode._convertKeyCodeToKeyName(keyCode);
      }
    }
    get code() {
      return dart.nullCheck(this[S$3._parent$2].code);
    }
    get ctrlKey() {
      return this[S$3._parent$2].ctrlKey;
    }
    get detail() {
      return dart.nullCheck(this[S$3._parent$2].detail);
    }
    get isComposing() {
      return dart.nullCheck(this[S$3._parent$2].isComposing);
    }
    get key() {
      return dart.nullCheck(this[S$3._parent$2].key);
    }
    get location() {
      return this[S$3._parent$2].location;
    }
    get metaKey() {
      return this[S$3._parent$2].metaKey;
    }
    get shiftKey() {
      return this[S$3._parent$2].shiftKey;
    }
    get view() {
      return this[S$3._parent$2][S$.$view];
    }
    [S$._initUIEvent](type, canBubble, cancelable, view, detail) {
      if (type == null) dart.nullFailed(I[166], 40486, 14, "type");
      if (canBubble == null) dart.nullFailed(I[166], 40486, 25, "canBubble");
      if (cancelable == null) dart.nullFailed(I[166], 40486, 41, "cancelable");
      if (detail == null) dart.nullFailed(I[166], 40486, 71, "detail");
      dart.throw(new core.UnsupportedError.new("Cannot initialize a UI Event from a KeyEvent."));
    }
    get [S$3._shadowKeyIdentifier]() {
      return this[S$3._parent$2].keyIdentifier;
    }
    get [S$1._charCode]() {
      return this.charCode;
    }
    get [S$1._keyCode]() {
      return this.keyCode;
    }
    get [S$._which]() {
      return this.which;
    }
    get [S$3._keyIdentifier]() {
      dart.throw(new core.UnsupportedError.new("keyIdentifier is unsupported."));
    }
    [S$1._initKeyboardEvent](type, canBubble, cancelable, view, keyIdentifier, location, ctrlKey, altKey, shiftKey, metaKey) {
      if (type == null) dart.nullFailed(I[166], 40501, 14, "type");
      if (canBubble == null) dart.nullFailed(I[166], 40502, 12, "canBubble");
      if (cancelable == null) dart.nullFailed(I[166], 40503, 12, "cancelable");
      if (keyIdentifier == null) dart.nullFailed(I[166], 40505, 14, "keyIdentifier");
      if (ctrlKey == null) dart.nullFailed(I[166], 40507, 12, "ctrlKey");
      if (altKey == null) dart.nullFailed(I[166], 40508, 12, "altKey");
      if (shiftKey == null) dart.nullFailed(I[166], 40509, 12, "shiftKey");
      if (metaKey == null) dart.nullFailed(I[166], 40510, 12, "metaKey");
      dart.throw(new core.UnsupportedError.new("Cannot initialize a KeyboardEvent from a KeyEvent."));
    }
    getModifierState(keyArgument) {
      if (keyArgument == null) dart.nullFailed(I[166], 40515, 32, "keyArgument");
      return dart.throw(new core.UnimplementedError.new());
    }
    get repeat() {
      return dart.throw(new core.UnimplementedError.new());
    }
    get isComposed() {
      return dart.throw(new core.UnimplementedError.new());
    }
    get [S$._get_view]() {
      return dart.throw(new core.UnimplementedError.new());
    }
  };
  (html$.KeyEvent.wrap = function(parent) {
    if (parent == null) dart.nullFailed(I[166], 40358, 31, "parent");
    this[S$3._currentTarget] = null;
    this[S$3._parent$2] = parent;
    this[S$3._shadowAltKey] = false;
    this[S$3._shadowCharCode] = 0;
    this[S$3._shadowKeyCode] = 0;
    dart.global.Object.getPrototypeOf(html$.KeyEvent).new.call(this, parent);
    this[S$3._parent$2] = parent;
    this[S$3._shadowAltKey] = this[S$3._realAltKey];
    this[S$3._shadowCharCode] = this[S$3._realCharCode];
    this[S$3._shadowKeyCode] = this[S$3._realKeyCode];
    this[S$3._currentTarget] = this[S$3._parent$2][S.$currentTarget];
  }).prototype = html$.KeyEvent.prototype;
  dart.addRtiResources(html$.KeyEvent, ["html|KeyEvent", "html|KeyboardEvent", "html|UIEvent", "html|Event", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(html$.KeyEvent, () => dart.global.Object.setPrototypeOf({
    [S$._initUIEvent]: T$4.StringAndboolAndbool__Tovoid(),
    [S$1._initKeyboardEvent]: T$5.StringAndboolAndbool__Tovoid$1(),
    getModifierState: T$.StringTobool(),
    [S$1.$getModifierState]: T$.StringTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$.KeyEvent))));
  dart.setStaticMethodSignature(html$.KeyEvent, () => ['_makeRecord', 'new', '_convertToHexString']);
  dart.setGetterSignature(html$.KeyEvent, () => dart.global.Object.setPrototypeOf({
    keyCode: T$.int(),
    [S$1.$keyCode]: T$.int(),
    charCode: T$.int(),
    [S$1.$charCode]: T$.int(),
    altKey: T$.bool(),
    [S$1.$altKey]: T$.bool(),
    which: T$.int(),
    [S$1.$which]: T$.int(),
    [S$3._realKeyCode]: T$.int(),
    [S$3._realCharCode]: T$.int(),
    [S$3._realAltKey]: T$.bool(),
    sourceCapabilities: T$4.InputDeviceCapabilitiesN(),
    [S$.$sourceCapabilities]: T$4.InputDeviceCapabilitiesN(),
    code: T$.String(),
    [S$.$code]: T$.String(),
    ctrlKey: T$.bool(),
    [S$1.$ctrlKey]: T$.bool(),
    detail: T$.int(),
    [S$.$detail]: T$.int(),
    isComposing: T$.bool(),
    [S$1.$isComposing]: T$.bool(),
    key: T$.String(),
    [S.$key]: T$.String(),
    location: T$.int(),
    [S$0.$location]: T$.int(),
    metaKey: T$.bool(),
    [S$1.$metaKey]: T$.bool(),
    shiftKey: T$.bool(),
    [S$1.$shiftKey]: T$.bool(),
    view: T$4.WindowBaseN(),
    [S$.$view]: T$4.WindowBaseN(),
    [S$3._shadowKeyIdentifier]: T$.String(),
    [S$1._charCode]: T$.int(),
    [S$1._keyCode]: T$.int(),
    [S$._which]: T$.int(),
    [S$3._keyIdentifier]: T$.String(),
    repeat: T$.bool(),
    [S$1.$repeat]: T$.bool(),
    isComposed: T$.bool(),
    [S$._get_view]: T$.dynamic()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html$.KeyEvent))));
  dart.setStaticGetterSignature(html$.KeyEvent, () => ['canUseDispatchEvent']);
  dart.setLibraryUri(html$.KeyEvent, I[167]);
  dart.setFieldSignature(html$.KeyEvent, () => dart.global.Object.setPrototypeOf({
    [S$3._parent$2]: {type: T$5.KeyboardEvent(), isConst: false, isFinal: false, libraryUri: I[167]},
    [S$3._shadowAltKey]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [S$3._shadowCharCode]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [S$3._shadowKeyCode]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [S$3._currentTarget]: {type: T$3.EventTargetN(), isConst: false, isFinal: false, libraryUri: I[167]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$.KeyEvent))));
  dart.setStaticFieldSignature(html$.KeyEvent, () => ['_keyboardEventDispatchRecord', 'keyDownEvent', 'keyUpEvent', 'keyPressEvent']);
  dart.defineExtensionMethods(html$.KeyEvent, ['getModifierState']);
  dart.defineExtensionAccessors(html$.KeyEvent, [
    'keyCode',
    'charCode',
    'altKey',
    'which',
    'sourceCapabilities',
    'currentTarget',
    'code',
    'ctrlKey',
    'detail',
    'isComposing',
    'key',
    'location',
    'metaKey',
    'shiftKey',
    'view',
    'repeat'
  ]);
  dart.defineLazy(html$.KeyEvent, {
    /*html$.KeyEvent._keyboardEventDispatchRecord*/get _keyboardEventDispatchRecord() {
      return html$.KeyEvent._makeRecord();
    },
    /*html$.KeyEvent.keyDownEvent*/get keyDownEvent() {
      return new html$._KeyboardEventHandler.new("keydown");
    },
    set keyDownEvent(value) {
      if (value == null) dart.nullFailed(I[166], 40459, 40, "keyDownEvent");
    },
    /*html$.KeyEvent.keyUpEvent*/get keyUpEvent() {
      return new html$._KeyboardEventHandler.new("keyup");
    },
    set keyUpEvent(value) {
      if (value == null) dart.nullFailed(I[166], 40462, 40, "keyUpEvent");
    },
    /*html$.KeyEvent.keyPressEvent*/get keyPressEvent() {
      return new html$._KeyboardEventHandler.new("keypress");
    },
    set keyPressEvent(value) {
      if (value == null) dart.nullFailed(I[166], 40465, 40, "keyPressEvent");
    }
  }, false);
  html$.Platform = class Platform extends core.Object {
    static ['_#new#tearOff']() {
      return new html$.Platform.new();
    }
  };
  (html$.Platform.new = function() {
    ;
  }).prototype = html$.Platform.prototype;
  dart.addRtiResources(html$.Platform, ["html|Platform"]);
  dart.setLibraryUri(html$.Platform, I[167]);
  dart.setStaticFieldSignature(html$.Platform, () => ['supportsTypedData', 'supportsSimd']);
  dart.defineLazy(html$.Platform, {
    /*html$.Platform.supportsTypedData*/get supportsTypedData() {
      return !!window.ArrayBuffer;
    },
    /*html$.Platform.supportsSimd*/get supportsSimd() {
      return false;
    }
  }, false);
  html$.ElementUpgrader = class ElementUpgrader extends core.Object {};
  (html$.ElementUpgrader.new = function() {
    ;
  }).prototype = html$.ElementUpgrader.prototype;
  dart.addRtiResources(html$.ElementUpgrader, ["html|ElementUpgrader"]);
  dart.setLibraryUri(html$.ElementUpgrader, I[167]);
  html$.NodeValidator = class NodeValidator extends core.Object {
    static new(opts) {
      let uriPolicy = opts && 'uriPolicy' in opts ? opts.uriPolicy : null;
      return new html$._Html5NodeValidator.new({uriPolicy: uriPolicy});
    }
    static ['_#new#tearOff'](opts) {
      let uriPolicy = opts && 'uriPolicy' in opts ? opts.uriPolicy : null;
      return html$.NodeValidator.new({uriPolicy: uriPolicy});
    }
    static throws(base) {
      if (base == null) dart.nullFailed(I[166], 40713, 46, "base");
      return new html$._ThrowsNodeValidator.new(base);
    }
    static ['_#throws#tearOff'](base) {
      if (base == null) dart.nullFailed(I[166], 40713, 46, "base");
      return html$.NodeValidator.throws(base);
    }
  };
  (html$.NodeValidator[dart.mixinNew] = function() {
  }).prototype = html$.NodeValidator.prototype;
  dart.addRtiResources(html$.NodeValidator, ["html|NodeValidator"]);
  dart.setStaticMethodSignature(html$.NodeValidator, () => ['new', 'throws']);
  dart.setLibraryUri(html$.NodeValidator, I[167]);
  html$.NodeTreeSanitizer = class NodeTreeSanitizer extends core.Object {
    static new(validator) {
      if (validator == null) dart.nullFailed(I[166], 40745, 43, "validator");
      return new html$._ValidatingTreeSanitizer.new(validator);
    }
    static ['_#new#tearOff'](validator) {
      if (validator == null) dart.nullFailed(I[166], 40745, 43, "validator");
      return html$.NodeTreeSanitizer.new(validator);
    }
  };
  (html$.NodeTreeSanitizer[dart.mixinNew] = function() {
  }).prototype = html$.NodeTreeSanitizer.prototype;
  dart.addRtiResources(html$.NodeTreeSanitizer, ["html|NodeTreeSanitizer"]);
  dart.setStaticMethodSignature(html$.NodeTreeSanitizer, () => ['new']);
  dart.setLibraryUri(html$.NodeTreeSanitizer, I[167]);
  dart.setStaticFieldSignature(html$.NodeTreeSanitizer, () => ['trusted']);
  dart.defineLazy(html$.NodeTreeSanitizer, {
    /*html$.NodeTreeSanitizer.trusted*/get trusted() {
      return C[466] || CT.C466;
    }
  }, false);
  html$._TrustedHtmlTreeSanitizer = class _TrustedHtmlTreeSanitizer extends core.Object {
    static ['_#new#tearOff']() {
      return new html$._TrustedHtmlTreeSanitizer.new();
    }
    sanitizeTree(node) {
      if (node == null) dart.nullFailed(I[166], 40773, 21, "node");
    }
  };
  (html$._TrustedHtmlTreeSanitizer.new = function() {
    ;
  }).prototype = html$._TrustedHtmlTreeSanitizer.prototype;
  dart.addRtiResources(html$._TrustedHtmlTreeSanitizer, ["html|_TrustedHtmlTreeSanitizer", "html|NodeTreeSanitizer"]);
  dart.setMethodSignature(html$._TrustedHtmlTreeSanitizer, () => dart.global.Object.setPrototypeOf({sanitizeTree: T.NodeTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$._TrustedHtmlTreeSanitizer))));
  dart.setLibraryUri(html$._TrustedHtmlTreeSanitizer, I[167]);
  html$.UriPolicy = class UriPolicy extends core.Object {
    static new() {
      return new html$._SameOriginUriPolicy.new();
    }
    static ['_#new#tearOff']() {
      return html$.UriPolicy.new();
    }
  };
  (html$.UriPolicy[dart.mixinNew] = function() {
  }).prototype = html$.UriPolicy.prototype;
  dart.addRtiResources(html$.UriPolicy, ["html|UriPolicy"]);
  dart.setStaticMethodSignature(html$.UriPolicy, () => ['new']);
  dart.setLibraryUri(html$.UriPolicy, I[167]);
  html$._SameOriginUriPolicy = class _SameOriginUriPolicy extends core.Object {
    allowsUri(uri) {
      if (uri == null) dart.nullFailed(I[166], 40809, 25, "uri");
      this[S$3._hiddenAnchor].href = uri;
      return this[S$3._hiddenAnchor].hostname == this[S$3._loc].hostname && this[S$3._hiddenAnchor].port == this[S$3._loc].port && this[S$3._hiddenAnchor].protocol == this[S$3._loc].protocol || this[S$3._hiddenAnchor].hostname === "" && this[S$3._hiddenAnchor].port === "" && (this[S$3._hiddenAnchor].protocol === ":" || this[S$3._hiddenAnchor].protocol === "");
    }
    static ['_#new#tearOff']() {
      return new html$._SameOriginUriPolicy.new();
    }
  };
  (html$._SameOriginUriPolicy.new = function() {
    this[S$3._hiddenAnchor] = html$.AnchorElement.new();
    this[S$3._loc] = html$.window[S$0.$location];
    ;
  }).prototype = html$._SameOriginUriPolicy.prototype;
  dart.addRtiResources(html$._SameOriginUriPolicy, ["html|_SameOriginUriPolicy", "html|UriPolicy"]);
  dart.setMethodSignature(html$._SameOriginUriPolicy, () => dart.global.Object.setPrototypeOf({allowsUri: T$.StringTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(html$._SameOriginUriPolicy))));
  dart.setLibraryUri(html$._SameOriginUriPolicy, I[167]);
  dart.setFieldSignature(html$._SameOriginUriPolicy, () => dart.global.Object.setPrototypeOf({
    [S$3._hiddenAnchor]: {type: T$7.AnchorElement(), isConst: false, isFinal: true, libraryUri: I[167]},
    [S$3._loc]: {type: T$6.Location(), isConst: false, isFinal: true, libraryUri: I[167]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._SameOriginUriPolicy))));
  html$._ThrowsNodeValidator = class _ThrowsNodeValidator extends core.Object {
    static ['_#new#tearOff'](validator) {
      if (validator == null) dart.nullFailed(I[166], 40824, 29, "validator");
      return new html$._ThrowsNodeValidator.new(validator);
    }
    allowsElement(element) {
      if (element == null) dart.nullFailed(I[166], 40826, 30, "element");
      if (!dart.test(this.validator.allowsElement(element))) {
        dart.throw(new core.ArgumentError.new(html$.Element._safeTagName(element)));
      }
      return true;
    }
    allowsAttribute(element, attributeName, value) {
      if (element == null) dart.nullFailed(I[166], 40833, 32, "element");
      if (attributeName == null) dart.nullFailed(I[166], 40833, 48, "attributeName");
      if (value == null) dart.nullFailed(I[166], 40833, 70, "value");
      if (!dart.test(this.validator.allowsAttribute(element, attributeName, value))) {
        dart.throw(new core.ArgumentError.new(dart.str(html$.Element._safeTagName(element)) + "[" + dart.str(attributeName) + "=\"" + dart.str(value) + "\"]"));
      }
      return true;
    }
  };
  (html$._ThrowsNodeValidator.new = function(validator) {
    if (validator == null) dart.nullFailed(I[166], 40824, 29, "validator");
    this.validator = validator;
  }).prototype = html$._ThrowsNodeValidator.prototype;
  dart.addRtiResources(html$._ThrowsNodeValidator, ["html|_ThrowsNodeValidator", "html|NodeValidator"]);
  dart.setMethodSignature(html$._ThrowsNodeValidator, () => dart.global.Object.setPrototypeOf({
    allowsElement: T$4.ElementTobool(),
    allowsAttribute: T$6.ElementAndStringAndStringTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._ThrowsNodeValidator))));
  dart.setLibraryUri(html$._ThrowsNodeValidator, I[167]);
  dart.setFieldSignature(html$._ThrowsNodeValidator, () => dart.global.Object.setPrototypeOf({validator: {type: T$6.NodeValidator(), isConst: false, isFinal: true, libraryUri: I[167]}}, dart.getFields(dart.global.Object.getPrototypeOf(html$._ThrowsNodeValidator))));
  html$._ValidatingTreeSanitizer = class _ValidatingTreeSanitizer extends core.Object {
    static ['_#new#tearOff'](validator) {
      if (validator == null) dart.nullFailed(I[166], 40851, 33, "validator");
      return new html$._ValidatingTreeSanitizer.new(validator);
    }
    sanitizeTree(node) {
      if (node == null) dart.nullFailed(I[166], 40853, 26, "node");
      const walk = (node, parent) => {
        if (node == null) dart.nullFailed(I[166], 40854, 20, "node");
        this.sanitizeNode(node, parent);
        let child = node.lastChild;
        while (child != null) {
          let nextChild = null;
          try {
            nextChild = child[S$.$previousNode];
            if (nextChild != null && !dart.equals(nextChild[S.$nextNode], child)) {
              dart.throw(new core.StateError.new("Corrupt HTML"));
            }
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            if (T$.Object()[_is](e)) {
              this[S$3._removeNode](child, node);
              child = null;
              nextChild = node.lastChild;
            } else
              throw t$36$35e;
          }
          if (child != null) walk(child, node);
          child = nextChild;
        }
      };
      dart.fn(walk, T$7.NodeAndNodeNTovoid());
      let previousTreeModifications = null;
      do {
        previousTreeModifications = this.numTreeModifications;
        walk(node, null);
      } while (!dart.equals(previousTreeModifications, this.numTreeModifications));
    }
    [S$3._removeNode](node, parent) {
      if (node == null) dart.nullFailed(I[166], 40890, 25, "node");
      this.numTreeModifications = dart.notNull(this.numTreeModifications) + 1;
      if (parent == null || !dart.equals(parent, node.parentNode)) {
        node[$remove]();
      } else {
        parent[S$._removeChild](node);
      }
    }
    [S$3._sanitizeUntrustedElement](element, parent) {
      let corrupted = true;
      let attrs = null;
      let isAttr = null;
      try {
        attrs = dart.dload(element, 'attributes');
        isAttr = dart.dsend(attrs, '_get', ["is"]);
        let corruptedTest1 = html$.Element._hasCorruptedAttributes(T$3.Element()[_as](element));
        corrupted = dart.test(corruptedTest1) ? true : html$.Element._hasCorruptedAttributesAdditionalCheck(T$3.Element()[_as](element));
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e;
      }
      let elementText = "element unprintable";
      try {
        elementText = dart.toString(element);
      } catch (t$36$35e$) {
        let e = dart.getThrown(t$36$35e$);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e$;
      }
      try {
        let elementTagName = html$.Element._safeTagName(T$3.Element()[_as](element));
        this[S$3._sanitizeElement](T$3.Element()[_as](element), parent, corrupted, elementText, elementTagName, T$.Map()[_as](attrs), T$.StringN()[_as](isAttr));
      } catch (t$36$35e$0) {
        let t$36$35ex = dart.getThrown(t$36$35e$0);
        if (T$2.ArgumentError()[_is](t$36$35ex)) {
          dart.rethrow(t$36$35e$0);
        } else if (T$.Object()[_is](t$36$35ex)) {
          let e = t$36$35ex;
          this[S$3._removeNode](T$5.Node()[_as](element), parent);
          html$.window[S$2.$console].warn("Removing corrupted element " + dart.str(elementText));
        } else
          throw t$36$35e$0;
      }
    }
    [S$3._sanitizeElement](element, parent, corrupted, text, tag, attrs, isAttr) {
      if (element == null) dart.nullFailed(I[166], 40956, 33, "element");
      if (corrupted == null) dart.nullFailed(I[166], 40956, 61, "corrupted");
      if (text == null) dart.nullFailed(I[166], 40957, 14, "text");
      if (tag == null) dart.nullFailed(I[166], 40957, 27, "tag");
      if (attrs == null) dart.nullFailed(I[166], 40957, 36, "attrs");
      if (false !== corrupted) {
        this[S$3._removeNode](element, parent);
        html$.window[S$2.$console].warn("Removing element due to corrupted attributes on <" + dart.str(text) + ">");
        return;
      }
      if (!dart.test(this.validator.allowsElement(element))) {
        this[S$3._removeNode](element, parent);
        html$.window[S$2.$console].warn("Removing disallowed element <" + dart.str(tag) + "> from " + dart.str(parent));
        return;
      }
      if (isAttr != null) {
        if (!dart.test(this.validator.allowsAttribute(element, "is", isAttr))) {
          this[S$3._removeNode](element, parent);
          html$.window[S$2.$console].warn("Removing disallowed type extension " + "<" + dart.str(tag) + " is=\"" + dart.str(isAttr) + "\">");
          return;
        }
      }
      let keys = attrs[$keys][$toList]();
      for (let i = dart.notNull(attrs[$length]) - 1; i >= 0; i = i - 1) {
        let name = keys[$_get](i);
        if (!dart.test(this.validator.allowsAttribute(element, T$.String()[_as](dart.dsend(name, 'toLowerCase', [])), T$.String()[_as](attrs[$_get](name))))) {
          html$.window[S$2.$console].warn("Removing disallowed attribute " + "<" + dart.str(tag) + " " + dart.str(name) + "=\"" + dart.str(attrs[$_get](name)) + "\">");
          attrs[$remove](name);
        }
      }
      if (T$6.TemplateElement()[_is](element)) {
        let template = element;
        this.sanitizeTree(dart.nullCheck(template.content));
      }
    }
    sanitizeNode(node, parent) {
      if (node == null) dart.nullFailed(I[166], 41003, 26, "node");
      switch (node.nodeType) {
        case 1:
          {
            this[S$3._sanitizeUntrustedElement](node, parent);
            break;
          }
        case 8:
        case 11:
        case 3:
        case 4:
          {
            break;
          }
        default:
          {
            this[S$3._removeNode](node, parent);
          }
      }
    }
  };
  (html$._ValidatingTreeSanitizer.new = function(validator) {
    if (validator == null) dart.nullFailed(I[166], 40851, 33, "validator");
    this.numTreeModifications = 0;
    this.validator = validator;
  }).prototype = html$._ValidatingTreeSanitizer.prototype;
  dart.addRtiResources(html$._ValidatingTreeSanitizer, ["html|_ValidatingTreeSanitizer", "html|NodeTreeSanitizer"]);
  dart.setMethodSignature(html$._ValidatingTreeSanitizer, () => dart.global.Object.setPrototypeOf({
    sanitizeTree: T.NodeTovoid(),
    [S$3._removeNode]: T$7.NodeAndNodeNTovoid(),
    [S$3._sanitizeUntrustedElement]: T$7.dynamicAndNodeNTovoid(),
    [S$3._sanitizeElement]: T$7.ElementAndNodeNAndbool__Tovoid(),
    sanitizeNode: T$7.NodeAndNodeNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html$._ValidatingTreeSanitizer))));
  dart.setLibraryUri(html$._ValidatingTreeSanitizer, I[167]);
  dart.setFieldSignature(html$._ValidatingTreeSanitizer, () => dart.global.Object.setPrototypeOf({
    validator: {type: T$6.NodeValidator(), isConst: false, isFinal: false, libraryUri: I[167]},
    numTreeModifications: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html$._ValidatingTreeSanitizer))));
  html$.promiseToFutureAsMap = function promiseToFutureAsMap(jsPromise) {
    return js_util.promiseToFuture(T$.dynamic(), T$.Object()[_as](jsPromise)).then(T$7.MapNOfString$dynamic(), C[467] || CT.C467);
  };
  html$._matchesWithAncestors = function _matchesWithAncestors(event, selector) {
    if (event == null) dart.nullFailed(I[166], 37172, 34, "event");
    if (selector == null) dart.nullFailed(I[166], 37172, 48, "selector");
    let target = event[S.$target];
    return T$3.Element()[_is](target) ? target[S.$matchesWithAncestors](selector) : false;
  };
  html$._convertNativeToDart_Window = function _convertNativeToDart_Window(win) {
    if (win == null) return null;
    return html$._DOMWindowCrossFrame._createSafe(win);
  };
  html$._convertNativeToDart_EventTarget = function _convertNativeToDart_EventTarget(e) {
    if (e == null) {
      return null;
    }
    if ("postMessage" in e) {
      let window = html$._DOMWindowCrossFrame._createSafe(e);
      if (T$3.EventTarget()[_is](window)) {
        return window;
      }
      return null;
    } else
      return T$3.EventTargetN()[_as](e);
  };
  html$._convertDartToNative_EventTarget = function _convertDartToNative_EventTarget(e) {
    if (T$7._DOMWindowCrossFrame()[_is](e)) {
      return e[S$3._window];
    } else {
      return e;
    }
  };
  html$._convertNativeToDart_XHR_Response = function _convertNativeToDart_XHR_Response(o) {
    if (T$6.Document()[_is](o)) {
      return o;
    }
    return html_common.convertNativeToDart_SerializedScriptValue(o);
  };
  html$._checkExtendsNativeClassOrTemplate = function _checkExtendsNativeClassOrTemplate(element, extendsTag, baseClassName) {
    if (element == null) dart.nullFailed(I[166], 40066, 13, "element");
    if (extendsTag == null) dart.nullFailed(I[166], 40066, 29, "extendsTag");
    if (baseClassName == null) dart.nullFailed(I[166], 40066, 48, "baseClassName");
    if (!(element instanceof window[baseClassName]) && !(extendsTag === "template" && element instanceof window.HTMLUnknownElement)) {
      dart.throw(new core.UnsupportedError.new("extendsTag does not match base native class"));
    }
  };
  html$._wrapZone = function _wrapZone(T, callback) {
    if (dart.equals(async.Zone.current, async.Zone.root)) return callback;
    if (callback == null) return null;
    return async.Zone.current.bindUnaryCallbackGuarded(T, callback);
  };
  html$._wrapBinaryZone = function _wrapBinaryZone(T1, T2, callback) {
    if (dart.equals(async.Zone.current, async.Zone.root)) return callback;
    if (callback == null) return null;
    return async.Zone.current.bindBinaryCallbackGuarded(T1, T2, callback);
  };
  html$.querySelector = function querySelector(selectors) {
    if (selectors == null) dart.nullFailed(I[166], 40662, 31, "selectors");
    return html$.document.querySelector(selectors);
  };
  html$.querySelectorAll = function querySelectorAll(T, selectors) {
    if (selectors == null) dart.nullFailed(I[166], 40680, 59, "selectors");
    return html$.document[S.$querySelectorAll](T, selectors);
  };
  dart.copyProperties(html$, {
    get window() {
      return window;
    },
    get document() {
      return document;
    },
    get _workerSelf() {
      return self;
    }
  });
  dart.defineLazy(html$, {
    /*html$._HEIGHT*/get _HEIGHT() {
      return G.JSArrayOfString().of(["top", "bottom"]);
    },
    /*html$._WIDTH*/get _WIDTH() {
      return G.JSArrayOfString().of(["right", "left"]);
    },
    /*html$._CONTENT*/get _CONTENT() {
      return "content";
    },
    /*html$._PADDING*/get _PADDING() {
      return "padding";
    },
    /*html$._MARGIN*/get _MARGIN() {
      return "margin";
    }
  }, false);
  html_common._StructuredClone = class _StructuredClone extends core.Object {
    findSlot(value) {
      let length = this.values[$length];
      for (let i = 0; i < dart.notNull(length); i = i + 1) {
        if (core.identical(this.values[$_get](i), value)) return i;
      }
      this.values[$add](value);
      this.copies[$add](null);
      return length;
    }
    readSlot(i) {
      if (i == null) dart.nullFailed(I[170], 72, 16, "i");
      return this.copies[$_get](i);
    }
    writeSlot(i, x) {
      if (i == null) dart.nullFailed(I[170], 73, 17, "i");
      this.copies[$_set](i, x);
    }
    cleanupSlots() {
    }
    walk(e) {
      if (e == null) return e;
      if (typeof e == 'boolean') return e;
      if (typeof e == 'number') return e;
      if (typeof e == 'string') return e;
      if (T$2.DateTime()[_is](e)) {
        return html_common.convertDartToNative_DateTime(e);
      }
      if (T$.RegExp()[_is](e)) {
        dart.throw(new core.UnimplementedError.new("structured clone of RegExp"));
      }
      if (T$5.File$1()[_is](e)) return e;
      if (T$4.Blob()[_is](e)) return e;
      if (T$7.FileList()[_is](e)) return e;
      if (T$4.ImageData()[_is](e)) return e;
      if (dart.test(this.cloneNotRequired(e))) return e;
      if (T$.Map()[_is](e)) {
        let slot = this.findSlot(e);
        let copy = this.readSlot(slot);
        if (copy != null) return copy;
        copy = this.newJsMap();
        this.writeSlot(slot, copy);
        e[$forEach](dart.fn((key, value) => {
          this.putIntoMap(copy, key, this.walk(value));
        }, T$.dynamicAnddynamicTovoid()));
        return copy;
      }
      if (T$.List()[_is](e)) {
        let slot = this.findSlot(e);
        let copy = this.readSlot(slot);
        if (copy != null) return copy;
        copy = this.copyList(e, slot);
        return copy;
      }
      if (T$3.JSObject()[_is](e)) {
        let slot = this.findSlot(e);
        let copy = this.readSlot(slot);
        if (copy != null) return copy;
        copy = this.newJsObject();
        this.writeSlot(slot, copy);
        this.forEachObjectKey(e, dart.fn((key, value) => {
          this.putIntoObject(copy, key, this.walk(value));
        }, T$.dynamicAnddynamicToNull()));
        return copy;
      }
      dart.throw(new core.UnimplementedError.new("structured clone of other type"));
    }
    copyList(e, slot) {
      if (e == null) dart.nullFailed(I[170], 156, 22, "e");
      if (slot == null) dart.nullFailed(I[170], 156, 29, "slot");
      let i = 0;
      let length = e[$length];
      let copy = this.newJsList(length);
      this.writeSlot(slot, copy);
      for (; i < dart.notNull(length); i = i + 1) {
        copy[$_set](i, this.walk(e[$_get](i)));
      }
      return copy;
    }
    convertDartToNative_PrepareForStructuredClone(value) {
      let copy = this.walk(value);
      this.cleanupSlots();
      return copy;
    }
  };
  (html_common._StructuredClone.new = function() {
    this.values = [];
    this.copies = [];
    ;
  }).prototype = html_common._StructuredClone.prototype;
  dart.addRtiResources(html_common._StructuredClone, ["html_common|_StructuredClone"]);
  dart.setMethodSignature(html_common._StructuredClone, () => dart.global.Object.setPrototypeOf({
    findSlot: T$0.dynamicToint(),
    readSlot: T$2.intTodynamic(),
    writeSlot: T$4.intAnddynamicTodynamic(),
    cleanupSlots: T$.VoidTodynamic(),
    walk: T$.dynamicTodynamic(),
    copyList: T$7.ListAndintToList(),
    convertDartToNative_PrepareForStructuredClone: T$.dynamicTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html_common._StructuredClone))));
  dart.setLibraryUri(html_common._StructuredClone, I[169]);
  dart.setFieldSignature(html_common._StructuredClone, () => dart.global.Object.setPrototypeOf({
    values: {type: T$.List(), isConst: false, isFinal: false, libraryUri: I[11]},
    copies: {type: T$.List(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html_common._StructuredClone))));
  html_common._AcceptStructuredClone = class _AcceptStructuredClone extends core.Object {
    findSlot(value) {
      let length = this.values[$length];
      for (let i = 0; i < dart.notNull(length); i = i + 1) {
        if (dart.test(this.identicalInJs(this.values[$_get](i), value))) return i;
      }
      this.values[$add](value);
      this.copies[$add](null);
      return length;
    }
    readSlot(i) {
      if (i == null) dart.nullFailed(I[170], 211, 16, "i");
      return this.copies[$_get](i);
    }
    writeSlot(i, x) {
      if (i == null) dart.nullFailed(I[170], 212, 17, "i");
      this.copies[$_set](i, x);
    }
    walk(e) {
      if (e == null) return e;
      if (typeof e == 'boolean') return e;
      if (typeof e == 'number') return e;
      if (typeof e == 'string') return e;
      if (dart.test(html_common.isJavaScriptDate(e))) {
        return html_common.convertNativeToDart_DateTime(e);
      }
      if (dart.test(html_common.isJavaScriptRegExp(e))) {
        dart.throw(new core.UnimplementedError.new("structured clone of RegExp"));
      }
      if (dart.test(html_common.isJavaScriptPromise(e))) {
        return js_util.promiseToFuture(T$.dynamic(), T$.Object()[_as](e));
      }
      if (dart.test(html_common.isJavaScriptSimpleObject(e))) {
        let slot = this.findSlot(e);
        let copy = this.readSlot(slot);
        if (copy != null) return copy;
        let map = new _js_helper.LinkedMap.new();
        this.writeSlot(slot, map);
        this.forEachJsField(e, dart.fn((key, value) => {
          let t$36379, t$36378, t$36377;
          t$36377 = map;
          t$36378 = key;
          t$36379 = this.walk(value);
          t$36377[$_set](t$36378, t$36379);
          return t$36379;
        }, T$.dynamicAnddynamicTodynamic()));
        return map;
      }
      if (dart.test(html_common.isJavaScriptArray(e))) {
        let l = e;
        let slot = this.findSlot(l);
        let copy = this.readSlot(slot);
        if (copy != null) return copy;
        let length = l[$length];
        copy = dart.test(this.mustCopy) ? this.newDartList(length) : l;
        this.writeSlot(slot, copy);
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          copy[$_set](i, this.walk(l[$_get](i)));
        }
        return copy;
      }
      return e;
    }
    convertNativeToDart_AcceptStructuredClone(object, opts) {
      let mustCopy = opts && 'mustCopy' in opts ? opts.mustCopy : false;
      this.mustCopy = T$.bool()[_as](mustCopy);
      let copy = this.walk(object);
      return copy;
    }
  };
  (html_common._AcceptStructuredClone.new = function() {
    this.values = [];
    this.copies = [];
    this.mustCopy = false;
    ;
  }).prototype = html_common._AcceptStructuredClone.prototype;
  dart.addRtiResources(html_common._AcceptStructuredClone, ["html_common|_AcceptStructuredClone"]);
  dart.setMethodSignature(html_common._AcceptStructuredClone, () => dart.global.Object.setPrototypeOf({
    findSlot: T$0.dynamicToint(),
    readSlot: T$2.intTodynamic(),
    writeSlot: T$4.intAnddynamicTodynamic(),
    walk: T$.dynamicTodynamic(),
    convertNativeToDart_AcceptStructuredClone: T$7.dynamic__Todynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html_common._AcceptStructuredClone))));
  dart.setLibraryUri(html_common._AcceptStructuredClone, I[169]);
  dart.setFieldSignature(html_common._AcceptStructuredClone, () => dart.global.Object.setPrototypeOf({
    values: {type: T$.List(), isConst: false, isFinal: false, libraryUri: I[11]},
    copies: {type: T$.List(), isConst: false, isFinal: false, libraryUri: I[11]},
    mustCopy: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html_common._AcceptStructuredClone))));
  html_common.ContextAttributes = class ContextAttributes extends core.Object {
    get alpha() {
      return this[S$3.alpha];
    }
    set alpha(value) {
      if (value == null) dart.nullFailed(I[170], 289, 8, "alpha");
      this[S$3.alpha] = value;
    }
    get antialias() {
      return this[S$3.antialias];
    }
    set antialias(value) {
      if (value == null) dart.nullFailed(I[170], 290, 8, "antialias");
      this[S$3.antialias] = value;
    }
    get depth() {
      return this[S$3.depth];
    }
    set depth(value) {
      if (value == null) dart.nullFailed(I[170], 291, 8, "depth");
      this[S$3.depth] = value;
    }
    get premultipliedAlpha() {
      return this[S$3.premultipliedAlpha];
    }
    set premultipliedAlpha(value) {
      if (value == null) dart.nullFailed(I[170], 292, 8, "premultipliedAlpha");
      this[S$3.premultipliedAlpha] = value;
    }
    get preserveDrawingBuffer() {
      return this[S$3.preserveDrawingBuffer];
    }
    set preserveDrawingBuffer(value) {
      if (value == null) dart.nullFailed(I[170], 293, 8, "preserveDrawingBuffer");
      this[S$3.preserveDrawingBuffer] = value;
    }
    get stencil() {
      return this[S$3.stencil];
    }
    set stencil(value) {
      if (value == null) dart.nullFailed(I[170], 294, 8, "stencil");
      this[S$3.stencil] = value;
    }
    get failIfMajorPerformanceCaveat() {
      return this[S$3.failIfMajorPerformanceCaveat];
    }
    set failIfMajorPerformanceCaveat(value) {
      if (value == null) dart.nullFailed(I[170], 295, 8, "failIfMajorPerformanceCaveat");
      this[S$3.failIfMajorPerformanceCaveat] = value;
    }
    static ['_#new#tearOff'](alpha, antialias, depth, failIfMajorPerformanceCaveat, premultipliedAlpha, preserveDrawingBuffer, stencil) {
      if (alpha == null) dart.nullFailed(I[170], 298, 12, "alpha");
      if (antialias == null) dart.nullFailed(I[170], 299, 12, "antialias");
      if (depth == null) dart.nullFailed(I[170], 300, 12, "depth");
      if (failIfMajorPerformanceCaveat == null) dart.nullFailed(I[170], 301, 12, "failIfMajorPerformanceCaveat");
      if (premultipliedAlpha == null) dart.nullFailed(I[170], 302, 12, "premultipliedAlpha");
      if (preserveDrawingBuffer == null) dart.nullFailed(I[170], 303, 12, "preserveDrawingBuffer");
      if (stencil == null) dart.nullFailed(I[170], 304, 12, "stencil");
      return new html_common.ContextAttributes.new(alpha, antialias, depth, failIfMajorPerformanceCaveat, premultipliedAlpha, preserveDrawingBuffer, stencil);
    }
  };
  (html_common.ContextAttributes.new = function(alpha, antialias, depth, failIfMajorPerformanceCaveat, premultipliedAlpha, preserveDrawingBuffer, stencil) {
    if (alpha == null) dart.nullFailed(I[170], 298, 12, "alpha");
    if (antialias == null) dart.nullFailed(I[170], 299, 12, "antialias");
    if (depth == null) dart.nullFailed(I[170], 300, 12, "depth");
    if (failIfMajorPerformanceCaveat == null) dart.nullFailed(I[170], 301, 12, "failIfMajorPerformanceCaveat");
    if (premultipliedAlpha == null) dart.nullFailed(I[170], 302, 12, "premultipliedAlpha");
    if (preserveDrawingBuffer == null) dart.nullFailed(I[170], 303, 12, "preserveDrawingBuffer");
    if (stencil == null) dart.nullFailed(I[170], 304, 12, "stencil");
    this[S$3.alpha] = alpha;
    this[S$3.antialias] = antialias;
    this[S$3.depth] = depth;
    this[S$3.failIfMajorPerformanceCaveat] = failIfMajorPerformanceCaveat;
    this[S$3.premultipliedAlpha] = premultipliedAlpha;
    this[S$3.preserveDrawingBuffer] = preserveDrawingBuffer;
    this[S$3.stencil] = stencil;
    ;
  }).prototype = html_common.ContextAttributes.prototype;
  dart.addRtiResources(html_common.ContextAttributes, ["html_common|ContextAttributes"]);
  dart.setLibraryUri(html_common.ContextAttributes, I[169]);
  dart.setFieldSignature(html_common.ContextAttributes, () => dart.global.Object.setPrototypeOf({
    alpha: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    antialias: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    depth: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    premultipliedAlpha: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    preserveDrawingBuffer: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    stencil: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    failIfMajorPerformanceCaveat: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html_common.ContextAttributes))));
  html_common._TypedImageData = class _TypedImageData extends core.Object {
    get data() {
      return this[S$3.data$2];
    }
    set data(value) {
      super.data = value;
    }
    get height() {
      return this[S$3.height$1];
    }
    set height(value) {
      super.height = value;
    }
    get width() {
      return this[S$3.width$1];
    }
    set width(value) {
      super.width = value;
    }
    static ['_#new#tearOff'](data, height, width) {
      if (data == null) dart.nullFailed(I[170], 330, 24, "data");
      if (height == null) dart.nullFailed(I[170], 330, 35, "height");
      if (width == null) dart.nullFailed(I[170], 330, 48, "width");
      return new html_common._TypedImageData.new(data, height, width);
    }
  };
  (html_common._TypedImageData.new = function(data, height, width) {
    if (data == null) dart.nullFailed(I[170], 330, 24, "data");
    if (height == null) dart.nullFailed(I[170], 330, 35, "height");
    if (width == null) dart.nullFailed(I[170], 330, 48, "width");
    this[S$3.data$2] = data;
    this[S$3.height$1] = height;
    this[S$3.width$1] = width;
    ;
  }).prototype = html_common._TypedImageData.prototype;
  dart.addRtiResources(html_common._TypedImageData, ["html_common|_TypedImageData", "html|ImageData", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setLibraryUri(html_common._TypedImageData, I[169]);
  dart.setFieldSignature(html_common._TypedImageData, () => dart.global.Object.setPrototypeOf({
    data: {type: T$0.Uint8ClampedList(), isConst: false, isFinal: true, libraryUri: I[43]},
    height: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    width: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html_common._TypedImageData))));
  dart.defineExtensionAccessors(html_common._TypedImageData, ['data', 'height', 'width']);
  html_common._StructuredCloneDart2Js = class _StructuredCloneDart2Js extends html_common._StructuredClone {
    newJsObject() {
      return {};
    }
    forEachObjectKey(object, action) {
      if (action == null) dart.nullFailed(I[171], 103, 33, "action");
      for (let key of Object.keys(object)) {
        action(key, object[key]);
      }
    }
    putIntoObject(object, key, value) {
      return object[key] = value;
    }
    newJsMap() {
      return {};
    }
    putIntoMap(map, key, value) {
      return map[key] = value;
    }
    newJsList(length) {
      return new Array(length);
    }
    cloneNotRequired(e) {
      return T$0.NativeByteBuffer()[_is](e) || T$7.NativeTypedData()[_is](e) || T$5.MessagePort()[_is](e) || T$7.SharedArrayBuffer()[_is](e);
    }
    static ['_#new#tearOff']() {
      return new html_common._StructuredCloneDart2Js.new();
    }
  };
  (html_common._StructuredCloneDart2Js.new = function() {
    dart.global.Object.getPrototypeOf(html_common._StructuredCloneDart2Js).new.call(this);
    ;
  }).prototype = html_common._StructuredCloneDart2Js.prototype;
  dart.addRtiResources(html_common._StructuredCloneDart2Js, ["html_common|_StructuredCloneDart2Js"]);
  dart.setMethodSignature(html_common._StructuredCloneDart2Js, () => dart.global.Object.setPrototypeOf({
    newJsObject: T$7.VoidToJSObject(),
    forEachObjectKey: T$7.dynamicAndFnTovoid$1(),
    putIntoObject: T$0.dynamicAnddynamicAnddynamicTovoid(),
    newJsMap: T$.VoidTodynamic(),
    putIntoMap: T$0.dynamicAnddynamicAnddynamicTovoid(),
    newJsList: T$2.dynamicToList(),
    cloneNotRequired: T$.dynamicTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html_common._StructuredCloneDart2Js))));
  dart.setLibraryUri(html_common._StructuredCloneDart2Js, I[169]);
  html_common._AcceptStructuredCloneDart2Js = class _AcceptStructuredCloneDart2Js extends html_common._AcceptStructuredClone {
    newJsList(length) {
      return new Array(length);
    }
    newDartList(length) {
      return this.newJsList(length);
    }
    identicalInJs(a, b) {
      return core.identical(a, b);
    }
    forEachJsField(object, action) {
      if (action == null) dart.nullFailed(I[171], 127, 31, "action");
      for (let key of Object.keys(object)) {
        action(key, object[key]);
      }
    }
    static ['_#new#tearOff']() {
      return new html_common._AcceptStructuredCloneDart2Js.new();
    }
  };
  (html_common._AcceptStructuredCloneDart2Js.new = function() {
    dart.global.Object.getPrototypeOf(html_common._AcceptStructuredCloneDart2Js).new.call(this);
    ;
  }).prototype = html_common._AcceptStructuredCloneDart2Js.prototype;
  dart.addRtiResources(html_common._AcceptStructuredCloneDart2Js, ["html_common|_AcceptStructuredCloneDart2Js"]);
  dart.setMethodSignature(html_common._AcceptStructuredCloneDart2Js, () => dart.global.Object.setPrototypeOf({
    newJsList: T$2.dynamicToList(),
    newDartList: T$2.dynamicToList(),
    identicalInJs: T$.dynamicAnddynamicTobool(),
    forEachJsField: T$7.dynamicAndFnTovoid$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html_common._AcceptStructuredCloneDart2Js))));
  dart.setLibraryUri(html_common._AcceptStructuredCloneDart2Js, I[169]);
  html_common.Device = class Device extends core.Object {
    static get userAgent() {
      return html$.window.navigator.userAgent;
    }
    static isEventTypeSupported(eventType) {
      if (eventType == null) dart.nullFailed(I[172], 52, 43, "eventType");
      try {
        let e = html$.Event.eventType(eventType, "");
        return T$5.Event()[_is](e);
      } catch (t$36$35e) {
        let _ = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](_)) {
        } else
          throw t$36$35e;
      }
      return false;
    }
    static ['_#new#tearOff']() {
      return new html_common.Device.new();
    }
  };
  (html_common.Device.new = function() {
    ;
  }).prototype = html_common.Device.prototype;
  dart.addRtiResources(html_common.Device, ["html_common|Device"]);
  dart.setStaticMethodSignature(html_common.Device, () => ['isEventTypeSupported']);
  dart.setStaticGetterSignature(html_common.Device, () => ['userAgent']);
  dart.setLibraryUri(html_common.Device, I[169]);
  dart.setStaticFieldSignature(html_common.Device, () => ['isOpera', 'isIE', 'isFirefox', 'isWebKit', 'cssPrefix', 'propertyPrefix']);
  dart.defineLazy(html_common.Device, {
    /*html_common.Device.isOpera*/get isOpera() {
      return html_common.Device.userAgent[$contains]("Opera", 0);
    },
    /*html_common.Device.isIE*/get isIE() {
      return !dart.test(html_common.Device.isOpera) && html_common.Device.userAgent[$contains]("Trident/", 0);
    },
    /*html_common.Device.isFirefox*/get isFirefox() {
      return html_common.Device.userAgent[$contains]("Firefox", 0);
    },
    /*html_common.Device.isWebKit*/get isWebKit() {
      return !dart.test(html_common.Device.isOpera) && html_common.Device.userAgent[$contains]("WebKit", 0);
    },
    /*html_common.Device.cssPrefix*/get cssPrefix() {
      return "-" + dart.str(html_common.Device.propertyPrefix) + "-";
    },
    /*html_common.Device.propertyPrefix*/get propertyPrefix() {
      return dart.test(html_common.Device.isFirefox) ? "moz" : dart.test(html_common.Device.isIE) ? "ms" : dart.test(html_common.Device.isOpera) ? "o" : "webkit";
    }
  }, false);
  html_common.FilteredElementList = class FilteredElementList extends G$.ListBaseOfElement() {
    static ['_#new#tearOff'](node) {
      if (node == null) dart.nullFailed(I[173], 23, 28, "node");
      return new html_common.FilteredElementList.new(node);
    }
    get [S$3._iterable$2]() {
      return this[S$3._childNodes][$where](dart.fn(n => {
        if (n == null) dart.nullFailed(I[173], 30, 26, "n");
        return T$3.Element()[_is](n);
      }, T$3.NodeTobool()))[$map](T$3.Element(), dart.fn(n => {
        if (n == null) dart.nullFailed(I[173], 30, 60, "n");
        return T$3.Element()[_as](n);
      }, T$7.NodeToElement()));
    }
    get [S$3._filtered]() {
      return G.ListOfElement().from(this[S$3._iterable$2], {growable: false});
    }
    forEach(f) {
      if (f == null) dart.nullFailed(I[173], 34, 21, "f");
      this[S$3._filtered][$forEach](f);
    }
    _set(index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[173], 40, 25, "index");
      T$3.Element()[_as](value);
      if (value == null) dart.nullFailed(I[173], 40, 40, "value");
      this._get(index)[S$.$replaceWith](value);
      return value$;
    }
    set length(newLength) {
      if (newLength == null) dart.nullFailed(I[173], 44, 18, "newLength");
      let len = this.length;
      if (dart.notNull(newLength) >= dart.notNull(len)) {
        return;
      } else if (dart.notNull(newLength) < 0) {
        dart.throw(new core.ArgumentError.new("Invalid list length"));
      }
      this.removeRange(newLength, len);
    }
    add(value) {
      T$3.Element()[_as](value);
      if (value == null) dart.nullFailed(I[173], 55, 20, "value");
      this[S$3._childNodes][$add](value);
    }
    addAll(iterable) {
      T$4.IterableOfElement()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[173], 59, 33, "iterable");
      for (let element of iterable) {
        this.add(element);
      }
    }
    contains(needle) {
      if (!T$3.Element()[_is](needle)) return false;
      let element = needle;
      return dart.equals(element.parentNode, this[S$3._node]);
    }
    get reversed() {
      return this[S$3._filtered][$reversed];
    }
    sort(compare = null) {
      dart.throw(new core.UnsupportedError.new("Cannot sort filtered list"));
    }
    setRange(start, end, iterable, skipCount = 0) {
      if (start == null) dart.nullFailed(I[173], 77, 21, "start");
      if (end == null) dart.nullFailed(I[173], 77, 32, "end");
      T$4.IterableOfElement()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[173], 77, 55, "iterable");
      if (skipCount == null) dart.nullFailed(I[173], 78, 12, "skipCount");
      dart.throw(new core.UnsupportedError.new("Cannot setRange on filtered list"));
    }
    fillRange(start, end, fillValue = null) {
      if (start == null) dart.nullFailed(I[173], 82, 22, "start");
      if (end == null) dart.nullFailed(I[173], 82, 33, "end");
      T$3.ElementN()[_as](fillValue);
      dart.throw(new core.UnsupportedError.new("Cannot fillRange on filtered list"));
    }
    replaceRange(start, end, iterable) {
      if (start == null) dart.nullFailed(I[173], 86, 25, "start");
      if (end == null) dart.nullFailed(I[173], 86, 36, "end");
      T$4.IterableOfElement()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[173], 86, 59, "iterable");
      dart.throw(new core.UnsupportedError.new("Cannot replaceRange on filtered list"));
    }
    removeRange(start, end) {
      if (start == null) dart.nullFailed(I[173], 90, 24, "start");
      if (end == null) dart.nullFailed(I[173], 90, 35, "end");
      G.ListOfElement().from(this[S$3._iterable$2][$skip](start)[$take](dart.notNull(end) - dart.notNull(start)))[$forEach](dart.fn(el => {
        if (el == null) dart.nullFailed(I[173], 92, 19, "el");
        return el[$remove]();
      }, T$5.ElementTovoid()));
    }
    clear() {
      this[S$3._childNodes][$clear]();
    }
    removeLast() {
      let result = this[S$3._iterable$2][$last];
      if (result != null) {
        result[$remove]();
      }
      return result;
    }
    insert(index, value) {
      if (index == null) dart.nullFailed(I[173], 109, 19, "index");
      T$3.Element()[_as](value);
      if (value == null) dart.nullFailed(I[173], 109, 34, "value");
      if (index == this.length) {
        this.add(value);
      } else {
        let element = this[S$3._iterable$2][$elementAt](index);
        dart.nullCheck(element.parentNode).insertBefore(value, element);
      }
    }
    insertAll(index, iterable) {
      if (index == null) dart.nullFailed(I[173], 118, 22, "index");
      T$4.IterableOfElement()[_as](iterable);
      if (iterable == null) dart.nullFailed(I[173], 118, 47, "iterable");
      if (index == this.length) {
        this.addAll(iterable);
      } else {
        let element = this[S$3._iterable$2][$elementAt](index);
        dart.nullCheck(element.parentNode)[S$.$insertAllBefore](iterable, element);
      }
    }
    removeAt(index) {
      if (index == null) dart.nullFailed(I[173], 127, 24, "index");
      let result = this._get(index);
      result[$remove]();
      return result;
    }
    remove(element) {
      if (!T$3.Element()[_is](element)) return false;
      if (dart.test(this.contains(element))) {
        element[$remove]();
        return true;
      } else {
        return false;
      }
    }
    get length() {
      return this[S$3._iterable$2][$length];
    }
    _get(index) {
      if (index == null) dart.nullFailed(I[173], 144, 27, "index");
      return this[S$3._iterable$2][$elementAt](index);
    }
    get iterator() {
      return this[S$3._filtered][$iterator];
    }
    get rawList() {
      return this[S$3._node].childNodes;
    }
  };
  (html_common.FilteredElementList.new = function(node) {
    if (node == null) dart.nullFailed(I[173], 23, 28, "node");
    this[S$3._childNodes] = node[S.$nodes];
    this[S$3._node] = node;
    this.$ti = this.$ti || T$7.FilteredElementList();
    dart.global.Object.getPrototypeOf(html_common.FilteredElementList).new.call(this);
    ;
  }).prototype = html_common.FilteredElementList.prototype;
  dart.addRtiResources(html_common.FilteredElementList, ["html_common|FilteredElementList", "html_common|NodeListWrapper"]);
  dart.setMethodSignature(html_common.FilteredElementList, () => dart.global.Object.setPrototypeOf({
    _set: T$.intAndObjectNTovoid(),
    [$_set]: T$.intAndObjectNTovoid(),
    _get: T$5.intToElement(),
    [$_get]: T$5.intToElement()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(html_common.FilteredElementList))));
  dart.setGetterSignature(html_common.FilteredElementList, () => dart.global.Object.setPrototypeOf({
    [S$3._iterable$2]: T$4.IterableOfElement(),
    [S$3._filtered]: T$3.ListOfElement(),
    length: T$.int(),
    [$length]: T$.int(),
    rawList: T$3.ListOfNode$1()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(html_common.FilteredElementList))));
  dart.setSetterSignature(html_common.FilteredElementList, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    [$length]: T$.int()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(html_common.FilteredElementList))));
  dart.setLibraryUri(html_common.FilteredElementList, I[169]);
  dart.setFieldSignature(html_common.FilteredElementList, () => dart.global.Object.setPrototypeOf({
    [S$3._node]: {type: T$5.Node(), isConst: false, isFinal: true, libraryUri: I[167]},
    [S$3._childNodes]: {type: T$3.ListOfNode$1(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(html_common.FilteredElementList))));
  dart.defineExtensionMethods(html_common.FilteredElementList, [
    'forEach',
    '_set',
    'add',
    'addAll',
    'contains',
    'sort',
    'setRange',
    'fillRange',
    'replaceRange',
    'removeRange',
    'clear',
    'removeLast',
    'insert',
    'insertAll',
    'removeAt',
    'remove',
    '_get'
  ]);
  dart.defineExtensionAccessors(html_common.FilteredElementList, ['length', 'reversed', 'iterator']);
  html_common.Lists = class Lists extends core.Object {
    static indexOf(a, element, startIndex, endIndex) {
      if (a == null) dart.nullFailed(I[174], 13, 27, "a");
      if (element == null) dart.nullFailed(I[174], 13, 37, "element");
      if (startIndex == null) dart.nullFailed(I[174], 13, 50, "startIndex");
      if (endIndex == null) dart.nullFailed(I[174], 13, 66, "endIndex");
      if (dart.notNull(startIndex) >= dart.notNull(a[$length])) {
        return -1;
      }
      if (dart.notNull(startIndex) < 0) {
        startIndex = 0;
      }
      for (let i = startIndex; dart.notNull(i) < dart.notNull(endIndex); i = dart.notNull(i) + 1) {
        if (dart.equals(a[$_get](i), element)) {
          return i;
        }
      }
      return -1;
    }
    static lastIndexOf(a, element, startIndex) {
      if (a == null) dart.nullFailed(I[174], 33, 31, "a");
      if (element == null) dart.nullFailed(I[174], 33, 41, "element");
      if (startIndex == null) dart.nullFailed(I[174], 33, 54, "startIndex");
      if (dart.notNull(startIndex) < 0) {
        return -1;
      }
      if (dart.notNull(startIndex) >= dart.notNull(a[$length])) {
        startIndex = dart.notNull(a[$length]) - 1;
      }
      for (let i = startIndex; dart.notNull(i) >= 0; i = dart.notNull(i) - 1) {
        if (dart.equals(a[$_get](i), element)) {
          return i;
        }
      }
      return -1;
    }
    static getRange(a, start, end, accumulator) {
      if (a == null) dart.nullFailed(I[174], 55, 29, "a");
      if (start == null) dart.nullFailed(I[174], 55, 36, "start");
      if (end == null) dart.nullFailed(I[174], 55, 47, "end");
      if (accumulator == null) dart.nullFailed(I[174], 55, 57, "accumulator");
      if (dart.notNull(start) < 0) dart.throw(new core.RangeError.value(start));
      if (dart.notNull(end) < dart.notNull(start)) dart.throw(new core.RangeError.value(end));
      if (dart.notNull(end) > dart.notNull(a[$length])) dart.throw(new core.RangeError.value(end));
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        accumulator[$add](a[$_get](i));
      }
      return accumulator;
    }
    static ['_#new#tearOff']() {
      return new html_common.Lists.new();
    }
  };
  (html_common.Lists.new = function() {
    ;
  }).prototype = html_common.Lists.prototype;
  dart.addRtiResources(html_common.Lists, ["html_common|Lists"]);
  dart.setStaticMethodSignature(html_common.Lists, () => ['indexOf', 'lastIndexOf', 'getRange']);
  dart.setLibraryUri(html_common.Lists, I[169]);
  html_common.NodeListWrapper = class NodeListWrapper extends core.Object {};
  (html_common.NodeListWrapper.new = function() {
    ;
  }).prototype = html_common.NodeListWrapper.prototype;
  dart.addRtiResources(html_common.NodeListWrapper, ["html_common|NodeListWrapper"]);
  dart.setLibraryUri(html_common.NodeListWrapper, I[169]);
  html_common.convertDartToNative_SerializedScriptValue = function convertDartToNative_SerializedScriptValue(value) {
    return html_common.convertDartToNative_PrepareForStructuredClone(value);
  };
  html_common.convertNativeToDart_SerializedScriptValue = function convertNativeToDart_SerializedScriptValue(object) {
    return html_common.convertNativeToDart_AcceptStructuredClone(object, {mustCopy: true});
  };
  html_common.convertNativeToDart_ContextAttributes = function convertNativeToDart_ContextAttributes(nativeContextAttributes) {
    return new html_common.ContextAttributes.new(nativeContextAttributes.alpha, nativeContextAttributes.antialias, nativeContextAttributes.depth, nativeContextAttributes.failIfMajorPerformanceCaveat, nativeContextAttributes.premultipliedAlpha, nativeContextAttributes.preserveDrawingBuffer, nativeContextAttributes.stencil);
  };
  html_common.convertNativeToDart_ImageData = function convertNativeToDart_ImageData(nativeImageData) {
    0;
    if (T$4.ImageData()[_is](nativeImageData)) {
      let data = nativeImageData.data;
      if (data.constructor === Array) {
        if (typeof CanvasPixelArray !== "undefined") {
          data.constructor = CanvasPixelArray;
          data.BYTES_PER_ELEMENT = 1;
        }
      }
      return nativeImageData;
    }
    return new html_common._TypedImageData.new(nativeImageData.data, nativeImageData.height, nativeImageData.width);
  };
  html_common.convertDartToNative_ImageData = function convertDartToNative_ImageData(imageData) {
    if (imageData == null) dart.nullFailed(I[170], 369, 41, "imageData");
    if (T$7._TypedImageData()[_is](imageData)) {
      return {data: imageData.data, height: imageData.height, width: imageData.width};
    }
    return imageData;
  };
  html_common._convertNativeToDart_Value = function _convertNativeToDart_Value(value) {
    if (value == null) return value;
    if (typeof value == 'string' || typeof value == 'number' || typeof value == 'boolean') return value;
    if (dart.test(html_common.isJavaScriptSimpleObject(value))) {
      return html_common.convertNativeToDart_Dictionary(value);
    }
    if (Array.isArray(value)) {
      let values = [];
      for (let i = 0; i < value.length; i = i + 1) {
        values[$add](html_common._convertNativeToDart_Value(value[i]));
      }
      return values;
    }
    return value;
  };
  html_common.convertNativeToDart_Dictionary = function convertNativeToDart_Dictionary(object) {
    if (object == null) return null;
    let dict = new (G.IdentityMapOfString$dynamic()).new();
    let keys = Object.getOwnPropertyNames(object);
    for (let key of keys) {
      dict[$_set](key, html_common._convertNativeToDart_Value(object[key]));
    }
    return dict;
  };
  html_common._convertDartToNative_Value = function _convertDartToNative_Value(value) {
    if (value == null) return value;
    if (typeof value == 'string' || typeof value == 'number' || typeof value == 'boolean') return value;
    if (T$.Map()[_is](value)) return html_common.convertDartToNative_Dictionary(value);
    if (T$.List()[_is](value)) {
      let array = [];
      value[$forEach](dart.fn(element => {
        array.push(html_common._convertDartToNative_Value(element));
      }, T$.dynamicTovoid()));
      value = array;
    }
    return value;
  };
  html_common.convertDartToNative_Dictionary = function convertDartToNative_Dictionary(dict, postCreate = null) {
    if (dict == null) return null;
    let object = {};
    if (postCreate != null) {
      postCreate(object);
    }
    dict[$forEach](dart.fn((key, value) => {
      object[key] = html_common._convertDartToNative_Value(value);
    }, T$.dynamicAnddynamicTovoid()));
    return object;
  };
  html_common.convertDartToNative_StringArray = function convertDartToNative_StringArray(input) {
    if (input == null) dart.nullFailed(I[171], 78, 51, "input");
    return input;
  };
  html_common.convertNativeToDart_DateTime = function convertNativeToDart_DateTime(date) {
    let millisSinceEpoch = date.getTime();
    return new core.DateTime.fromMillisecondsSinceEpoch(millisSinceEpoch, {isUtc: true});
  };
  html_common.convertDartToNative_DateTime = function convertDartToNative_DateTime(date) {
    if (date == null) dart.nullFailed(I[171], 88, 39, "date");
    return new Date(date.millisecondsSinceEpoch);
  };
  html_common.convertDartToNative_PrepareForStructuredClone = function convertDartToNative_PrepareForStructuredClone(value) {
    return new html_common._StructuredCloneDart2Js.new().convertDartToNative_PrepareForStructuredClone(value);
  };
  html_common.convertNativeToDart_AcceptStructuredClone = function convertNativeToDart_AcceptStructuredClone(object, opts) {
    let mustCopy = opts && 'mustCopy' in opts ? opts.mustCopy : false;
    return new html_common._AcceptStructuredCloneDart2Js.new().convertNativeToDart_AcceptStructuredClone(object, {mustCopy: mustCopy});
  };
  html_common.isJavaScriptDate = function isJavaScriptDate(value) {
    return value instanceof Date;
  };
  html_common.isJavaScriptRegExp = function isJavaScriptRegExp(value) {
    return value instanceof RegExp;
  };
  html_common.isJavaScriptArray = function isJavaScriptArray$(value) {
    return value instanceof Array;
  };
  html_common.isJavaScriptSimpleObject = function isJavaScriptSimpleObject$(value) {
    let proto = Object.getPrototypeOf(value);
    return proto === Object.prototype || proto === null;
  };
  html_common.isImmutableJavaScriptArray = function isImmutableJavaScriptArray(value) {
    return !!value.immutable$list;
  };
  html_common.isJavaScriptPromise = function isJavaScriptPromise(value) {
    return typeof Promise != "undefined" && value instanceof Promise;
  };
  dart.defineLazy(html_common, {
    /*html_common._serializedScriptValue*/get _serializedScriptValue() {
      return "num|String|bool|JSExtendableArray|=Object|Blob|File|NativeByteBuffer|NativeTypedData|MessagePort";
    },
    /*html_common.annotation_Creates_SerializedScriptValue*/get annotation_Creates_SerializedScriptValue() {
      return C[468] || CT.C468;
    },
    /*html_common.annotation_Returns_SerializedScriptValue*/get annotation_Returns_SerializedScriptValue() {
      return C[469] || CT.C469;
    }
  }, false);
  svg$._SvgElementFactoryProvider = class _SvgElementFactoryProvider extends core.Object {
    static createSvgElement_tag(tag) {
      if (tag == null) dart.nullFailed(I[175], 33, 49, "tag");
      let temp = html$.document[S$1.$createElementNS]("http://www.w3.org/2000/svg", tag);
      return T$7.SvgElement()[_as](temp);
    }
    static ['_#new#tearOff']() {
      return new svg$._SvgElementFactoryProvider.new();
    }
  };
  (svg$._SvgElementFactoryProvider.new = function() {
    ;
  }).prototype = svg$._SvgElementFactoryProvider.prototype;
  dart.addRtiResources(svg$._SvgElementFactoryProvider, ["svg|_SvgElementFactoryProvider"]);
  dart.setStaticMethodSignature(svg$._SvgElementFactoryProvider, () => ['createSvgElement_tag']);
  dart.setLibraryUri(svg$._SvgElementFactoryProvider, I[176]);
  svg$.SvgElement = class SvgElement extends html$.Element {
    static tag(tag) {
      if (tag == null) dart.nullFailed(I[175], 2999, 33, "tag");
      return T$7.SvgElement()[_as](html$.document[S$1.$createElementNS]("http://www.w3.org/2000/svg", tag));
    }
    static ['_#tag#tearOff'](tag) {
      if (tag == null) dart.nullFailed(I[175], 2999, 33, "tag");
      return svg$.SvgElement.tag(tag);
    }
    static svg(svg, opts) {
      let t$36378;
      if (svg == null) dart.nullFailed(I[175], 3001, 33, "svg");
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      if (validator == null && treeSanitizer == null) {
        validator = (t$36378 = new html$.NodeValidatorBuilder.common(), (() => {
          t$36378.allowSvg();
          return t$36378;
        })());
      }
      let match = svg$.SvgElement._START_TAG_REGEXP.firstMatch(svg);
      let parentElement = null;
      if (match != null && dart.nullCheck(match.group(1))[$toLowerCase]() === "svg") {
        parentElement = dart.nullCheck(html$.document.body);
      } else {
        parentElement = svg$.SvgSvgElement.new();
      }
      let fragment = parentElement[S.$createFragment](svg, {validator: validator, treeSanitizer: treeSanitizer});
      return T$7.SvgElement()[_as](fragment[S.$nodes][$where](dart.fn(e => {
        if (e == null) dart.nullFailed(I[175], 3016, 34, "e");
        return T$7.SvgElement()[_is](e);
      }, T$3.NodeTobool()))[$single]);
    }
    static ['_#svg#tearOff'](svg, opts) {
      if (svg == null) dart.nullFailed(I[175], 3001, 33, "svg");
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      return svg$.SvgElement.svg(svg, {validator: validator, treeSanitizer: treeSanitizer});
    }
    get [S.$classes]() {
      return new svg$.AttributeClassSet.new(this);
    }
    set [S.$classes](value) {
      super[S.$classes] = value;
    }
    get [S.$children]() {
      return new html_common.FilteredElementList.new(this);
    }
    set [S.$children](value) {
      if (value == null) dart.nullFailed(I[175], 3023, 30, "value");
      let children = this[S.$children];
      children[$clear]();
      children[$addAll](value);
    }
    get [S.$outerHtml]() {
      let container = html$.DivElement.new();
      let cloned = T$7.SvgElement()[_as](this[S$.$clone](true));
      container[S.$children][$add](cloned);
      return container[S.$innerHtml];
    }
    get [S.$innerHtml]() {
      let container = html$.DivElement.new();
      let cloned = T$7.SvgElement()[_as](this[S$.$clone](true));
      container[S.$children][$addAll](cloned[S.$children]);
      return container[S.$innerHtml];
    }
    set [S.$innerHtml](value) {
      this[S.$setInnerHtml](value);
    }
    [S.$createFragment](svg, opts) {
      let t$36378;
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      if (treeSanitizer == null) {
        if (validator == null) {
          validator = (t$36378 = new html$.NodeValidatorBuilder.common(), (() => {
            t$36378.allowSvg();
            return t$36378;
          })());
        }
        treeSanitizer = html$.NodeTreeSanitizer.new(validator);
      }
      let html = "<svg version=\"1.1\">" + dart.str(svg) + "</svg>";
      let fragment = dart.nullCheck(html$.document.body)[S.$createFragment](html, {treeSanitizer: treeSanitizer});
      let svgFragment = html$.DocumentFragment.new();
      let root = fragment[S.$nodes][$single];
      while (root.firstChild != null) {
        svgFragment[S.$append](dart.nullCheck(root.firstChild));
      }
      return svgFragment;
    }
    [S.$insertAdjacentText](where, text) {
      if (where == null) dart.nullFailed(I[175], 3072, 34, "where");
      if (text == null) dart.nullFailed(I[175], 3072, 48, "text");
      dart.throw(new core.UnsupportedError.new("Cannot invoke insertAdjacentText on SVG."));
    }
    [S.$insertAdjacentHtml](where, text, opts) {
      if (where == null) dart.nullFailed(I[175], 3076, 34, "where");
      if (text == null) dart.nullFailed(I[175], 3076, 48, "text");
      let validator = opts && 'validator' in opts ? opts.validator : null;
      let treeSanitizer = opts && 'treeSanitizer' in opts ? opts.treeSanitizer : null;
      dart.throw(new core.UnsupportedError.new("Cannot invoke insertAdjacentHtml on SVG."));
    }
    [S.$insertAdjacentElement](where, element) {
      if (where == null) dart.nullFailed(I[175], 3081, 40, "where");
      if (element == null) dart.nullFailed(I[175], 3081, 55, "element");
      dart.throw(new core.UnsupportedError.new("Cannot invoke insertAdjacentElement on SVG."));
    }
    get [S$3._children$1]() {
      dart.throw(new core.UnsupportedError.new("Cannot get _children on SVG."));
    }
    get [S.$isContentEditable]() {
      return false;
    }
    [S.$click]() {
      dart.throw(new core.UnsupportedError.new("Cannot invoke click SVG."));
    }
    static isTagSupported(tag) {
      if (tag == null) dart.nullFailed(I[175], 3099, 37, "tag");
      let e = svg$.SvgElement.tag(tag);
      return T$7.SvgElement()[_is](e) && !T$3.UnknownElement()[_is](e);
    }
    static ['_#_#tearOff']() {
      return svg$.SvgElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.SvgElement.created();
    }
    get [S$3._svgClassName]() {
      return this.className;
    }
    get [S$3.$ownerSvgElement]() {
      return this.ownerSVGElement;
    }
    get [S$3.$viewportElement]() {
      return this.viewportElement;
    }
    [S.$blur](...args) {
      return this.blur.apply(this, args);
    }
    [S.$focus](...args) {
      return this.focus.apply(this, args);
    }
    get [S.$nonce]() {
      return this.nonce;
    }
    set [S.$nonce](value) {
      this.nonce = value;
    }
    get [S.$onAbort]() {
      return svg$.SvgElement.abortEvent.forElement(this);
    }
    get [S.$onBlur]() {
      return svg$.SvgElement.blurEvent.forElement(this);
    }
    get [S.$onCanPlay]() {
      return svg$.SvgElement.canPlayEvent.forElement(this);
    }
    get [S.$onCanPlayThrough]() {
      return svg$.SvgElement.canPlayThroughEvent.forElement(this);
    }
    get [S.$onChange]() {
      return svg$.SvgElement.changeEvent.forElement(this);
    }
    get [S.$onClick]() {
      return svg$.SvgElement.clickEvent.forElement(this);
    }
    get [S.$onContextMenu]() {
      return svg$.SvgElement.contextMenuEvent.forElement(this);
    }
    get [S.$onDoubleClick]() {
      return svg$.SvgElement.doubleClickEvent.forElement(this);
    }
    get [S.$onDrag]() {
      return svg$.SvgElement.dragEvent.forElement(this);
    }
    get [S.$onDragEnd]() {
      return svg$.SvgElement.dragEndEvent.forElement(this);
    }
    get [S.$onDragEnter]() {
      return svg$.SvgElement.dragEnterEvent.forElement(this);
    }
    get [S.$onDragLeave]() {
      return svg$.SvgElement.dragLeaveEvent.forElement(this);
    }
    get [S.$onDragOver]() {
      return svg$.SvgElement.dragOverEvent.forElement(this);
    }
    get [S.$onDragStart]() {
      return svg$.SvgElement.dragStartEvent.forElement(this);
    }
    get [S.$onDrop]() {
      return svg$.SvgElement.dropEvent.forElement(this);
    }
    get [S.$onDurationChange]() {
      return svg$.SvgElement.durationChangeEvent.forElement(this);
    }
    get [S.$onEmptied]() {
      return svg$.SvgElement.emptiedEvent.forElement(this);
    }
    get [S.$onEnded]() {
      return svg$.SvgElement.endedEvent.forElement(this);
    }
    get [S.$onError]() {
      return svg$.SvgElement.errorEvent.forElement(this);
    }
    get [S.$onFocus]() {
      return svg$.SvgElement.focusEvent.forElement(this);
    }
    get [S.$onInput]() {
      return svg$.SvgElement.inputEvent.forElement(this);
    }
    get [S.$onInvalid]() {
      return svg$.SvgElement.invalidEvent.forElement(this);
    }
    get [S.$onKeyDown]() {
      return svg$.SvgElement.keyDownEvent.forElement(this);
    }
    get [S.$onKeyPress]() {
      return svg$.SvgElement.keyPressEvent.forElement(this);
    }
    get [S.$onKeyUp]() {
      return svg$.SvgElement.keyUpEvent.forElement(this);
    }
    get [S.$onLoad]() {
      return svg$.SvgElement.loadEvent.forElement(this);
    }
    get [S.$onLoadedData]() {
      return svg$.SvgElement.loadedDataEvent.forElement(this);
    }
    get [S.$onLoadedMetadata]() {
      return svg$.SvgElement.loadedMetadataEvent.forElement(this);
    }
    get [S.$onMouseDown]() {
      return svg$.SvgElement.mouseDownEvent.forElement(this);
    }
    get [S.$onMouseEnter]() {
      return svg$.SvgElement.mouseEnterEvent.forElement(this);
    }
    get [S.$onMouseLeave]() {
      return svg$.SvgElement.mouseLeaveEvent.forElement(this);
    }
    get [S.$onMouseMove]() {
      return svg$.SvgElement.mouseMoveEvent.forElement(this);
    }
    get [S$.$onMouseOut]() {
      return svg$.SvgElement.mouseOutEvent.forElement(this);
    }
    get [S$.$onMouseOver]() {
      return svg$.SvgElement.mouseOverEvent.forElement(this);
    }
    get [S$.$onMouseUp]() {
      return svg$.SvgElement.mouseUpEvent.forElement(this);
    }
    get [S$.$onMouseWheel]() {
      return svg$.SvgElement.mouseWheelEvent.forElement(this);
    }
    get [S$.$onPause]() {
      return svg$.SvgElement.pauseEvent.forElement(this);
    }
    get [S$.$onPlay]() {
      return svg$.SvgElement.playEvent.forElement(this);
    }
    get [S$.$onPlaying]() {
      return svg$.SvgElement.playingEvent.forElement(this);
    }
    get [S$.$onRateChange]() {
      return svg$.SvgElement.rateChangeEvent.forElement(this);
    }
    get [S$.$onReset]() {
      return svg$.SvgElement.resetEvent.forElement(this);
    }
    get [S$.$onResize]() {
      return svg$.SvgElement.resizeEvent.forElement(this);
    }
    get [S$.$onScroll]() {
      return svg$.SvgElement.scrollEvent.forElement(this);
    }
    get [S$.$onSeeked]() {
      return svg$.SvgElement.seekedEvent.forElement(this);
    }
    get [S$.$onSeeking]() {
      return svg$.SvgElement.seekingEvent.forElement(this);
    }
    get [S$.$onSelect]() {
      return svg$.SvgElement.selectEvent.forElement(this);
    }
    get [S$.$onStalled]() {
      return svg$.SvgElement.stalledEvent.forElement(this);
    }
    get [S$.$onSubmit]() {
      return svg$.SvgElement.submitEvent.forElement(this);
    }
    get [S$.$onSuspend]() {
      return svg$.SvgElement.suspendEvent.forElement(this);
    }
    get [S$.$onTimeUpdate]() {
      return svg$.SvgElement.timeUpdateEvent.forElement(this);
    }
    get [S$.$onTouchCancel]() {
      return svg$.SvgElement.touchCancelEvent.forElement(this);
    }
    get [S$.$onTouchEnd]() {
      return svg$.SvgElement.touchEndEvent.forElement(this);
    }
    get [S$.$onTouchMove]() {
      return svg$.SvgElement.touchMoveEvent.forElement(this);
    }
    get [S$.$onTouchStart]() {
      return svg$.SvgElement.touchStartEvent.forElement(this);
    }
    get [S$.$onVolumeChange]() {
      return svg$.SvgElement.volumeChangeEvent.forElement(this);
    }
    get [S$.$onWaiting]() {
      return svg$.SvgElement.waitingEvent.forElement(this);
    }
    get [S$.$onWheel]() {
      return svg$.SvgElement.wheelEvent.forElement(this);
    }
  };
  (svg$.SvgElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.SvgElement).created.call(this);
    ;
  }).prototype = svg$.SvgElement.prototype;
  dart.addRtiResources(svg$.SvgElement, ["svg|SvgElement", "html|GlobalEventHandlers", "html|NoncedElement", "html|EventTarget", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.SvgElement, () => ['tag', 'svg', 'isTagSupported', '__']);
  dart.setGetterSignature(svg$.SvgElement, () => dart.global.Object.setPrototypeOf({
    [S$3._children$1]: T$5.HtmlCollection(),
    [S.$isContentEditable]: T$.bool(),
    [S$3._svgClassName]: T$7.AnimatedString(),
    [S$3.$ownerSvgElement]: T$5.SvgSvgElementN(),
    [S$3.$viewportElement]: T$7.SvgElementN(),
    [S.$nonce]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.SvgElement))));
  dart.setSetterSignature(svg$.SvgElement, () => dart.global.Object.setPrototypeOf({[S.$nonce]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.SvgElement))));
  dart.setLibraryUri(svg$.SvgElement, I[176]);
  dart.setStaticFieldSignature(svg$.SvgElement, () => ['_START_TAG_REGEXP', 'abortEvent', 'blurEvent', 'canPlayEvent', 'canPlayThroughEvent', 'changeEvent', 'clickEvent', 'contextMenuEvent', 'doubleClickEvent', 'dragEvent', 'dragEndEvent', 'dragEnterEvent', 'dragLeaveEvent', 'dragOverEvent', 'dragStartEvent', 'dropEvent', 'durationChangeEvent', 'emptiedEvent', 'endedEvent', 'errorEvent', 'focusEvent', 'inputEvent', 'invalidEvent', 'keyDownEvent', 'keyPressEvent', 'keyUpEvent', 'loadEvent', 'loadedDataEvent', 'loadedMetadataEvent', 'mouseDownEvent', 'mouseEnterEvent', 'mouseLeaveEvent', 'mouseMoveEvent', 'mouseOutEvent', 'mouseOverEvent', 'mouseUpEvent', 'mouseWheelEvent', 'pauseEvent', 'playEvent', 'playingEvent', 'rateChangeEvent', 'resetEvent', 'resizeEvent', 'scrollEvent', 'seekedEvent', 'seekingEvent', 'selectEvent', 'stalledEvent', 'submitEvent', 'suspendEvent', 'timeUpdateEvent', 'touchCancelEvent', 'touchEndEvent', 'touchMoveEvent', 'touchStartEvent', 'volumeChangeEvent', 'waitingEvent', 'wheelEvent']);
  dart.defineLazy(svg$.SvgElement, {
    /*svg$.SvgElement._START_TAG_REGEXP*/get _START_TAG_REGEXP() {
      return core.RegExp.new("<(\\w+)");
    },
    /*svg$.SvgElement.abortEvent*/get abortEvent() {
      return C[265] || CT.C265;
    },
    /*svg$.SvgElement.blurEvent*/get blurEvent() {
      return C[284] || CT.C284;
    },
    /*svg$.SvgElement.canPlayEvent*/get canPlayEvent() {
      return C[285] || CT.C285;
    },
    /*svg$.SvgElement.canPlayThroughEvent*/get canPlayThroughEvent() {
      return C[286] || CT.C286;
    },
    /*svg$.SvgElement.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    },
    /*svg$.SvgElement.clickEvent*/get clickEvent() {
      return C[288] || CT.C288;
    },
    /*svg$.SvgElement.contextMenuEvent*/get contextMenuEvent() {
      return C[289] || CT.C289;
    },
    /*svg$.SvgElement.doubleClickEvent*/get doubleClickEvent() {
      return C[292] || CT.C292;
    },
    /*svg$.SvgElement.dragEvent*/get dragEvent() {
      return C[293] || CT.C293;
    },
    /*svg$.SvgElement.dragEndEvent*/get dragEndEvent() {
      return C[294] || CT.C294;
    },
    /*svg$.SvgElement.dragEnterEvent*/get dragEnterEvent() {
      return C[295] || CT.C295;
    },
    /*svg$.SvgElement.dragLeaveEvent*/get dragLeaveEvent() {
      return C[296] || CT.C296;
    },
    /*svg$.SvgElement.dragOverEvent*/get dragOverEvent() {
      return C[297] || CT.C297;
    },
    /*svg$.SvgElement.dragStartEvent*/get dragStartEvent() {
      return C[298] || CT.C298;
    },
    /*svg$.SvgElement.dropEvent*/get dropEvent() {
      return C[299] || CT.C299;
    },
    /*svg$.SvgElement.durationChangeEvent*/get durationChangeEvent() {
      return C[300] || CT.C300;
    },
    /*svg$.SvgElement.emptiedEvent*/get emptiedEvent() {
      return C[301] || CT.C301;
    },
    /*svg$.SvgElement.endedEvent*/get endedEvent() {
      return C[302] || CT.C302;
    },
    /*svg$.SvgElement.errorEvent*/get errorEvent() {
      return C[267] || CT.C267;
    },
    /*svg$.SvgElement.focusEvent*/get focusEvent() {
      return C[303] || CT.C303;
    },
    /*svg$.SvgElement.inputEvent*/get inputEvent() {
      return C[304] || CT.C304;
    },
    /*svg$.SvgElement.invalidEvent*/get invalidEvent() {
      return C[305] || CT.C305;
    },
    /*svg$.SvgElement.keyDownEvent*/get keyDownEvent() {
      return C[306] || CT.C306;
    },
    /*svg$.SvgElement.keyPressEvent*/get keyPressEvent() {
      return C[307] || CT.C307;
    },
    /*svg$.SvgElement.keyUpEvent*/get keyUpEvent() {
      return C[308] || CT.C308;
    },
    /*svg$.SvgElement.loadEvent*/get loadEvent() {
      return C[309] || CT.C309;
    },
    /*svg$.SvgElement.loadedDataEvent*/get loadedDataEvent() {
      return C[310] || CT.C310;
    },
    /*svg$.SvgElement.loadedMetadataEvent*/get loadedMetadataEvent() {
      return C[311] || CT.C311;
    },
    /*svg$.SvgElement.mouseDownEvent*/get mouseDownEvent() {
      return C[312] || CT.C312;
    },
    /*svg$.SvgElement.mouseEnterEvent*/get mouseEnterEvent() {
      return C[313] || CT.C313;
    },
    /*svg$.SvgElement.mouseLeaveEvent*/get mouseLeaveEvent() {
      return C[314] || CT.C314;
    },
    /*svg$.SvgElement.mouseMoveEvent*/get mouseMoveEvent() {
      return C[315] || CT.C315;
    },
    /*svg$.SvgElement.mouseOutEvent*/get mouseOutEvent() {
      return C[316] || CT.C316;
    },
    /*svg$.SvgElement.mouseOverEvent*/get mouseOverEvent() {
      return C[317] || CT.C317;
    },
    /*svg$.SvgElement.mouseUpEvent*/get mouseUpEvent() {
      return C[318] || CT.C318;
    },
    /*svg$.SvgElement.mouseWheelEvent*/get mouseWheelEvent() {
      return C[393] || CT.C393;
    },
    /*svg$.SvgElement.pauseEvent*/get pauseEvent() {
      return C[320] || CT.C320;
    },
    /*svg$.SvgElement.playEvent*/get playEvent() {
      return C[321] || CT.C321;
    },
    /*svg$.SvgElement.playingEvent*/get playingEvent() {
      return C[322] || CT.C322;
    },
    /*svg$.SvgElement.rateChangeEvent*/get rateChangeEvent() {
      return C[323] || CT.C323;
    },
    /*svg$.SvgElement.resetEvent*/get resetEvent() {
      return C[324] || CT.C324;
    },
    /*svg$.SvgElement.resizeEvent*/get resizeEvent() {
      return C[325] || CT.C325;
    },
    /*svg$.SvgElement.scrollEvent*/get scrollEvent() {
      return C[326] || CT.C326;
    },
    /*svg$.SvgElement.seekedEvent*/get seekedEvent() {
      return C[328] || CT.C328;
    },
    /*svg$.SvgElement.seekingEvent*/get seekingEvent() {
      return C[329] || CT.C329;
    },
    /*svg$.SvgElement.selectEvent*/get selectEvent() {
      return C[330] || CT.C330;
    },
    /*svg$.SvgElement.stalledEvent*/get stalledEvent() {
      return C[332] || CT.C332;
    },
    /*svg$.SvgElement.submitEvent*/get submitEvent() {
      return C[333] || CT.C333;
    },
    /*svg$.SvgElement.suspendEvent*/get suspendEvent() {
      return C[334] || CT.C334;
    },
    /*svg$.SvgElement.timeUpdateEvent*/get timeUpdateEvent() {
      return C[335] || CT.C335;
    },
    /*svg$.SvgElement.touchCancelEvent*/get touchCancelEvent() {
      return C[336] || CT.C336;
    },
    /*svg$.SvgElement.touchEndEvent*/get touchEndEvent() {
      return C[337] || CT.C337;
    },
    /*svg$.SvgElement.touchMoveEvent*/get touchMoveEvent() {
      return C[340] || CT.C340;
    },
    /*svg$.SvgElement.touchStartEvent*/get touchStartEvent() {
      return C[341] || CT.C341;
    },
    /*svg$.SvgElement.volumeChangeEvent*/get volumeChangeEvent() {
      return C[342] || CT.C342;
    },
    /*svg$.SvgElement.waitingEvent*/get waitingEvent() {
      return C[343] || CT.C343;
    },
    /*svg$.SvgElement.wheelEvent*/get wheelEvent() {
      return C[346] || CT.C346;
    }
  }, false);
  dart.registerExtension("SVGElement", svg$.SvgElement);
  svg$.GraphicsElement = class GraphicsElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.GraphicsElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.GraphicsElement.created();
    }
    get [S$3.$farthestViewportElement]() {
      return this.farthestViewportElement;
    }
    get [S$3.$nearestViewportElement]() {
      return this.nearestViewportElement;
    }
    get [S$.$transform]() {
      return this.transform;
    }
    [S$3.$getBBox](...args) {
      return this.getBBox.apply(this, args);
    }
    [S$3.$getCtm](...args) {
      return this.getCTM.apply(this, args);
    }
    [S$3.$getScreenCtm](...args) {
      return this.getScreenCTM.apply(this, args);
    }
    get [S$3.$requiredExtensions]() {
      return this.requiredExtensions;
    }
    get [S$3.$systemLanguage]() {
      return this.systemLanguage;
    }
  };
  (svg$.GraphicsElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.GraphicsElement).created.call(this);
    ;
  }).prototype = svg$.GraphicsElement.prototype;
  dart.addRtiResources(svg$.GraphicsElement, ["svg|GraphicsElement", "svg|Tests", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(svg$.GraphicsElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$getBBox]: T$7.VoidToRect(),
    [S$3.$getCtm]: T$7.VoidToMatrix(),
    [S$3.$getScreenCtm]: T$7.VoidToMatrix()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.GraphicsElement))));
  dart.setStaticMethodSignature(svg$.GraphicsElement, () => ['__']);
  dart.setGetterSignature(svg$.GraphicsElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$farthestViewportElement]: T$7.SvgElementN(),
    [S$3.$nearestViewportElement]: T$7.SvgElementN(),
    [S$.$transform]: T$7.AnimatedTransformListN(),
    [S$3.$requiredExtensions]: T$7.StringListN(),
    [S$3.$systemLanguage]: T$7.StringListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.GraphicsElement))));
  dart.setLibraryUri(svg$.GraphicsElement, I[176]);
  dart.registerExtension("SVGGraphicsElement", svg$.GraphicsElement);
  svg$.AElement = class AElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.AElement.__();
    }
    static new() {
      return T$7.AElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("a"));
    }
    static ['_#new#tearOff']() {
      return svg$.AElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.AElement.created();
    }
    get [S.$target]() {
      return this.target;
    }
    get [S$.$href]() {
      return this.href;
    }
  };
  (svg$.AElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.AElement).created.call(this);
    ;
  }).prototype = svg$.AElement.prototype;
  dart.addRtiResources(svg$.AElement, ["svg|AElement", "svg|UriReference", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.AElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.AElement, () => dart.global.Object.setPrototypeOf({
    [S.$target]: T$7.AnimatedString(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AElement))));
  dart.setLibraryUri(svg$.AElement, I[176]);
  dart.registerExtension("SVGAElement", svg$.AElement);
  svg$.Angle = class Angle extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.Angle.__();
    }
    get [S$3.$unitType]() {
      return this.unitType;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
    get [S$3.$valueAsString]() {
      return this.valueAsString;
    }
    set [S$3.$valueAsString](value) {
      this.valueAsString = value;
    }
    get [S$3.$valueInSpecifiedUnits]() {
      return this.valueInSpecifiedUnits;
    }
    set [S$3.$valueInSpecifiedUnits](value) {
      this.valueInSpecifiedUnits = value;
    }
    [S$3.$convertToSpecifiedUnits](...args) {
      return this.convertToSpecifiedUnits.apply(this, args);
    }
    [S$3.$newValueSpecifiedUnits](...args) {
      return this.newValueSpecifiedUnits.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.Angle, ["svg|Angle"]);
  dart.setMethodSignature(svg$.Angle, () => dart.global.Object.setPrototypeOf({
    [S$3.$convertToSpecifiedUnits]: T$.intTovoid(),
    [S$3.$newValueSpecifiedUnits]: T$7.intAndnumTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.Angle))));
  dart.setStaticMethodSignature(svg$.Angle, () => ['__']);
  dart.setGetterSignature(svg$.Angle, () => dart.global.Object.setPrototypeOf({
    [S$3.$unitType]: T$.intN(),
    [S.$value]: T$3.numN(),
    [S$3.$valueAsString]: T$.StringN(),
    [S$3.$valueInSpecifiedUnits]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.Angle))));
  dart.setSetterSignature(svg$.Angle, () => dart.global.Object.setPrototypeOf({
    [S.$value]: T$3.numN(),
    [S$3.$valueAsString]: T$.StringN(),
    [S$3.$valueInSpecifiedUnits]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.Angle))));
  dart.setLibraryUri(svg$.Angle, I[176]);
  dart.setStaticFieldSignature(svg$.Angle, () => ['SVG_ANGLETYPE_DEG', 'SVG_ANGLETYPE_GRAD', 'SVG_ANGLETYPE_RAD', 'SVG_ANGLETYPE_UNKNOWN', 'SVG_ANGLETYPE_UNSPECIFIED']);
  dart.defineLazy(svg$.Angle, {
    /*svg$.Angle.SVG_ANGLETYPE_DEG*/get SVG_ANGLETYPE_DEG() {
      return 2;
    },
    /*svg$.Angle.SVG_ANGLETYPE_GRAD*/get SVG_ANGLETYPE_GRAD() {
      return 4;
    },
    /*svg$.Angle.SVG_ANGLETYPE_RAD*/get SVG_ANGLETYPE_RAD() {
      return 3;
    },
    /*svg$.Angle.SVG_ANGLETYPE_UNKNOWN*/get SVG_ANGLETYPE_UNKNOWN() {
      return 0;
    },
    /*svg$.Angle.SVG_ANGLETYPE_UNSPECIFIED*/get SVG_ANGLETYPE_UNSPECIFIED() {
      return 1;
    }
  }, false);
  dart.registerExtension("SVGAngle", svg$.Angle);
  svg$.AnimationElement = class AnimationElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.AnimationElement.__();
    }
    static new() {
      return T$7.AnimationElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("animation"));
    }
    static ['_#new#tearOff']() {
      return svg$.AnimationElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.AnimationElement.created();
    }
    get [S$3.$targetElement]() {
      return this.targetElement;
    }
    [S$3.$beginElement](...args) {
      return this.beginElement.apply(this, args);
    }
    [S$3.$beginElementAt](...args) {
      return this.beginElementAt.apply(this, args);
    }
    [S$3.$endElement](...args) {
      return this.endElement.apply(this, args);
    }
    [S$3.$endElementAt](...args) {
      return this.endElementAt.apply(this, args);
    }
    [S$3.$getCurrentTime](...args) {
      return this.getCurrentTime.apply(this, args);
    }
    [S$3.$getSimpleDuration](...args) {
      return this.getSimpleDuration.apply(this, args);
    }
    [S$3.$getStartTime](...args) {
      return this.getStartTime.apply(this, args);
    }
    get [S$3.$requiredExtensions]() {
      return this.requiredExtensions;
    }
    get [S$3.$systemLanguage]() {
      return this.systemLanguage;
    }
  };
  (svg$.AnimationElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.AnimationElement).created.call(this);
    ;
  }).prototype = svg$.AnimationElement.prototype;
  dart.addRtiResources(svg$.AnimationElement, ["svg|AnimationElement", "svg|Tests", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(svg$.AnimationElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$beginElement]: T$.VoidTovoid(),
    [S$3.$beginElementAt]: T$2.numTovoid(),
    [S$3.$endElement]: T$.VoidTovoid(),
    [S$3.$endElementAt]: T$2.numTovoid(),
    [S$3.$getCurrentTime]: T$.VoidTodouble(),
    [S$3.$getSimpleDuration]: T$.VoidTodouble(),
    [S$3.$getStartTime]: T$.VoidTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.AnimationElement))));
  dart.setStaticMethodSignature(svg$.AnimationElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.AnimationElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$targetElement]: T$7.SvgElementN(),
    [S$3.$requiredExtensions]: T$7.StringListN(),
    [S$3.$systemLanguage]: T$7.StringListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimationElement))));
  dart.setLibraryUri(svg$.AnimationElement, I[176]);
  dart.registerExtension("SVGAnimationElement", svg$.AnimationElement);
  svg$.AnimateElement = class AnimateElement extends svg$.AnimationElement {
    static ['_#_#tearOff']() {
      return svg$.AnimateElement.__();
    }
    static new() {
      return T$7.AnimateElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("animate"));
    }
    static ['_#new#tearOff']() {
      return svg$.AnimateElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.AnimateElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("animate")) && T$7.AnimateElement()[_is](svg$.SvgElement.tag("animate"));
    }
  };
  (svg$.AnimateElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.AnimateElement).created.call(this);
    ;
  }).prototype = svg$.AnimateElement.prototype;
  dart.addRtiResources(svg$.AnimateElement, ["svg|AnimateElement"]);
  dart.setStaticMethodSignature(svg$.AnimateElement, () => ['__', 'new']);
  dart.setStaticGetterSignature(svg$.AnimateElement, () => ['supported']);
  dart.setLibraryUri(svg$.AnimateElement, I[176]);
  dart.registerExtension("SVGAnimateElement", svg$.AnimateElement);
  svg$.AnimateMotionElement = class AnimateMotionElement extends svg$.AnimationElement {
    static ['_#_#tearOff']() {
      return svg$.AnimateMotionElement.__();
    }
    static new() {
      return T$7.AnimateMotionElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("animateMotion"));
    }
    static ['_#new#tearOff']() {
      return svg$.AnimateMotionElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.AnimateMotionElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("animateMotion")) && T$7.AnimateMotionElement()[_is](svg$.SvgElement.tag("animateMotion"));
    }
  };
  (svg$.AnimateMotionElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.AnimateMotionElement).created.call(this);
    ;
  }).prototype = svg$.AnimateMotionElement.prototype;
  dart.addRtiResources(svg$.AnimateMotionElement, ["svg|AnimateMotionElement"]);
  dart.setStaticMethodSignature(svg$.AnimateMotionElement, () => ['__', 'new']);
  dart.setStaticGetterSignature(svg$.AnimateMotionElement, () => ['supported']);
  dart.setLibraryUri(svg$.AnimateMotionElement, I[176]);
  dart.registerExtension("SVGAnimateMotionElement", svg$.AnimateMotionElement);
  svg$.AnimateTransformElement = class AnimateTransformElement extends svg$.AnimationElement {
    static ['_#_#tearOff']() {
      return svg$.AnimateTransformElement.__();
    }
    static new() {
      return T$7.AnimateTransformElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("animateTransform"));
    }
    static ['_#new#tearOff']() {
      return svg$.AnimateTransformElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.AnimateTransformElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("animateTransform")) && T$7.AnimateTransformElement()[_is](svg$.SvgElement.tag("animateTransform"));
    }
  };
  (svg$.AnimateTransformElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.AnimateTransformElement).created.call(this);
    ;
  }).prototype = svg$.AnimateTransformElement.prototype;
  dart.addRtiResources(svg$.AnimateTransformElement, ["svg|AnimateTransformElement"]);
  dart.setStaticMethodSignature(svg$.AnimateTransformElement, () => ['__', 'new']);
  dart.setStaticGetterSignature(svg$.AnimateTransformElement, () => ['supported']);
  dart.setLibraryUri(svg$.AnimateTransformElement, I[176]);
  dart.registerExtension("SVGAnimateTransformElement", svg$.AnimateTransformElement);
  svg$.AnimatedAngle = class AnimatedAngle extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedAngle.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
  };
  dart.addRtiResources(svg$.AnimatedAngle, ["svg|AnimatedAngle"]);
  dart.setStaticMethodSignature(svg$.AnimatedAngle, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedAngle, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$7.AngleN(),
    [S$3.$baseVal]: T$7.AngleN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedAngle))));
  dart.setLibraryUri(svg$.AnimatedAngle, I[176]);
  dart.registerExtension("SVGAnimatedAngle", svg$.AnimatedAngle);
  svg$.AnimatedBoolean = class AnimatedBoolean extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedBoolean.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
    set [S$3.$baseVal](value) {
      this.baseVal = value;
    }
  };
  dart.addRtiResources(svg$.AnimatedBoolean, ["svg|AnimatedBoolean"]);
  dart.setStaticMethodSignature(svg$.AnimatedBoolean, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedBoolean, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$.boolN(),
    [S$3.$baseVal]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedBoolean))));
  dart.setSetterSignature(svg$.AnimatedBoolean, () => dart.global.Object.setPrototypeOf({[S$3.$baseVal]: T$.boolN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.AnimatedBoolean))));
  dart.setLibraryUri(svg$.AnimatedBoolean, I[176]);
  dart.registerExtension("SVGAnimatedBoolean", svg$.AnimatedBoolean);
  svg$.AnimatedEnumeration = class AnimatedEnumeration extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedEnumeration.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
    set [S$3.$baseVal](value) {
      this.baseVal = value;
    }
  };
  dart.addRtiResources(svg$.AnimatedEnumeration, ["svg|AnimatedEnumeration"]);
  dart.setStaticMethodSignature(svg$.AnimatedEnumeration, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedEnumeration, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$.intN(),
    [S$3.$baseVal]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedEnumeration))));
  dart.setSetterSignature(svg$.AnimatedEnumeration, () => dart.global.Object.setPrototypeOf({[S$3.$baseVal]: T$.intN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.AnimatedEnumeration))));
  dart.setLibraryUri(svg$.AnimatedEnumeration, I[176]);
  dart.registerExtension("SVGAnimatedEnumeration", svg$.AnimatedEnumeration);
  svg$.AnimatedInteger = class AnimatedInteger extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedInteger.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
    set [S$3.$baseVal](value) {
      this.baseVal = value;
    }
  };
  dart.addRtiResources(svg$.AnimatedInteger, ["svg|AnimatedInteger"]);
  dart.setStaticMethodSignature(svg$.AnimatedInteger, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedInteger, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$.intN(),
    [S$3.$baseVal]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedInteger))));
  dart.setSetterSignature(svg$.AnimatedInteger, () => dart.global.Object.setPrototypeOf({[S$3.$baseVal]: T$.intN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.AnimatedInteger))));
  dart.setLibraryUri(svg$.AnimatedInteger, I[176]);
  dart.registerExtension("SVGAnimatedInteger", svg$.AnimatedInteger);
  svg$.AnimatedLength = class AnimatedLength extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedLength.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
  };
  dart.addRtiResources(svg$.AnimatedLength, ["svg|AnimatedLength"]);
  dart.setStaticMethodSignature(svg$.AnimatedLength, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedLength, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$7.LengthN(),
    [S$3.$baseVal]: T$7.LengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedLength))));
  dart.setLibraryUri(svg$.AnimatedLength, I[176]);
  dart.registerExtension("SVGAnimatedLength", svg$.AnimatedLength);
  svg$.AnimatedLengthList = class AnimatedLengthList extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedLengthList.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
  };
  dart.addRtiResources(svg$.AnimatedLengthList, ["svg|AnimatedLengthList"]);
  dart.setStaticMethodSignature(svg$.AnimatedLengthList, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedLengthList, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$7.LengthListN(),
    [S$3.$baseVal]: T$7.LengthListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedLengthList))));
  dart.setLibraryUri(svg$.AnimatedLengthList, I[176]);
  dart.registerExtension("SVGAnimatedLengthList", svg$.AnimatedLengthList);
  svg$.AnimatedNumber = class AnimatedNumber extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedNumber.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
    set [S$3.$baseVal](value) {
      this.baseVal = value;
    }
  };
  dart.addRtiResources(svg$.AnimatedNumber, ["svg|AnimatedNumber"]);
  dart.setStaticMethodSignature(svg$.AnimatedNumber, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedNumber, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$3.numN(),
    [S$3.$baseVal]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedNumber))));
  dart.setSetterSignature(svg$.AnimatedNumber, () => dart.global.Object.setPrototypeOf({[S$3.$baseVal]: T$3.numN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.AnimatedNumber))));
  dart.setLibraryUri(svg$.AnimatedNumber, I[176]);
  dart.registerExtension("SVGAnimatedNumber", svg$.AnimatedNumber);
  svg$.AnimatedNumberList = class AnimatedNumberList extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedNumberList.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
  };
  dart.addRtiResources(svg$.AnimatedNumberList, ["svg|AnimatedNumberList"]);
  dart.setStaticMethodSignature(svg$.AnimatedNumberList, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedNumberList, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$7.NumberListN(),
    [S$3.$baseVal]: T$7.NumberListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedNumberList))));
  dart.setLibraryUri(svg$.AnimatedNumberList, I[176]);
  dart.registerExtension("SVGAnimatedNumberList", svg$.AnimatedNumberList);
  svg$.AnimatedPreserveAspectRatio = class AnimatedPreserveAspectRatio extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedPreserveAspectRatio.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
  };
  dart.addRtiResources(svg$.AnimatedPreserveAspectRatio, ["svg|AnimatedPreserveAspectRatio"]);
  dart.setStaticMethodSignature(svg$.AnimatedPreserveAspectRatio, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedPreserveAspectRatio, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$7.PreserveAspectRatioN(),
    [S$3.$baseVal]: T$7.PreserveAspectRatioN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedPreserveAspectRatio))));
  dart.setLibraryUri(svg$.AnimatedPreserveAspectRatio, I[176]);
  dart.registerExtension("SVGAnimatedPreserveAspectRatio", svg$.AnimatedPreserveAspectRatio);
  svg$.AnimatedRect = class AnimatedRect extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedRect.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
  };
  dart.addRtiResources(svg$.AnimatedRect, ["svg|AnimatedRect"]);
  dart.setStaticMethodSignature(svg$.AnimatedRect, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedRect, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$7.RectN(),
    [S$3.$baseVal]: T$7.RectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedRect))));
  dart.setLibraryUri(svg$.AnimatedRect, I[176]);
  dart.registerExtension("SVGAnimatedRect", svg$.AnimatedRect);
  svg$.AnimatedString = class AnimatedString extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedString.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
    set [S$3.$baseVal](value) {
      this.baseVal = value;
    }
  };
  dart.addRtiResources(svg$.AnimatedString, ["svg|AnimatedString"]);
  dart.setStaticMethodSignature(svg$.AnimatedString, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedString, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$.StringN(),
    [S$3.$baseVal]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedString))));
  dart.setSetterSignature(svg$.AnimatedString, () => dart.global.Object.setPrototypeOf({[S$3.$baseVal]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.AnimatedString))));
  dart.setLibraryUri(svg$.AnimatedString, I[176]);
  dart.registerExtension("SVGAnimatedString", svg$.AnimatedString);
  svg$.AnimatedTransformList = class AnimatedTransformList extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.AnimatedTransformList.__();
    }
    get [S$3.$animVal]() {
      return this.animVal;
    }
    get [S$3.$baseVal]() {
      return this.baseVal;
    }
  };
  dart.addRtiResources(svg$.AnimatedTransformList, ["svg|AnimatedTransformList"]);
  dart.setStaticMethodSignature(svg$.AnimatedTransformList, () => ['__']);
  dart.setGetterSignature(svg$.AnimatedTransformList, () => dart.global.Object.setPrototypeOf({
    [S$3.$animVal]: T$7.TransformListN(),
    [S$3.$baseVal]: T$7.TransformListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.AnimatedTransformList))));
  dart.setLibraryUri(svg$.AnimatedTransformList, I[176]);
  dart.registerExtension("SVGAnimatedTransformList", svg$.AnimatedTransformList);
  svg$.GeometryElement = class GeometryElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.GeometryElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.GeometryElement.created();
    }
    get [S$3.$pathLength]() {
      return this.pathLength;
    }
    [S$3.$getPointAtLength](...args) {
      return this.getPointAtLength.apply(this, args);
    }
    [S$3.$getTotalLength](...args) {
      return this.getTotalLength.apply(this, args);
    }
    [S$3.$isPointInFill](...args) {
      return this.isPointInFill.apply(this, args);
    }
    [S$.$isPointInStroke](...args) {
      return this.isPointInStroke.apply(this, args);
    }
  };
  (svg$.GeometryElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.GeometryElement).created.call(this);
    ;
  }).prototype = svg$.GeometryElement.prototype;
  dart.addRtiResources(svg$.GeometryElement, ["svg|GeometryElement"]);
  dart.setMethodSignature(svg$.GeometryElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$getPointAtLength]: T$7.numToPoint(),
    [S$3.$getTotalLength]: T$.VoidTodouble(),
    [S$3.$isPointInFill]: T$7.PointTobool(),
    [S$.$isPointInStroke]: T$7.PointTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.GeometryElement))));
  dart.setStaticMethodSignature(svg$.GeometryElement, () => ['__']);
  dart.setGetterSignature(svg$.GeometryElement, () => dart.global.Object.setPrototypeOf({[S$3.$pathLength]: T$7.AnimatedNumberN()}, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.GeometryElement))));
  dart.setLibraryUri(svg$.GeometryElement, I[176]);
  dart.registerExtension("SVGGeometryElement", svg$.GeometryElement);
  svg$.CircleElement = class CircleElement extends svg$.GeometryElement {
    static ['_#_#tearOff']() {
      return svg$.CircleElement.__();
    }
    static new() {
      return T$7.CircleElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("circle"));
    }
    static ['_#new#tearOff']() {
      return svg$.CircleElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.CircleElement.created();
    }
    get [S$3.$cx]() {
      return this.cx;
    }
    get [S$3.$cy]() {
      return this.cy;
    }
    get [S$3.$r]() {
      return this.r;
    }
  };
  (svg$.CircleElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.CircleElement).created.call(this);
    ;
  }).prototype = svg$.CircleElement.prototype;
  dart.addRtiResources(svg$.CircleElement, ["svg|CircleElement"]);
  dart.setStaticMethodSignature(svg$.CircleElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.CircleElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$cx]: T$7.AnimatedLengthN(),
    [S$3.$cy]: T$7.AnimatedLengthN(),
    [S$3.$r]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.CircleElement))));
  dart.setLibraryUri(svg$.CircleElement, I[176]);
  dart.registerExtension("SVGCircleElement", svg$.CircleElement);
  svg$.ClipPathElement = class ClipPathElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.ClipPathElement.__();
    }
    static new() {
      return T$7.ClipPathElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("clipPath"));
    }
    static ['_#new#tearOff']() {
      return svg$.ClipPathElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.ClipPathElement.created();
    }
    get [S$3.$clipPathUnits]() {
      return this.clipPathUnits;
    }
  };
  (svg$.ClipPathElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.ClipPathElement).created.call(this);
    ;
  }).prototype = svg$.ClipPathElement.prototype;
  dart.addRtiResources(svg$.ClipPathElement, ["svg|ClipPathElement"]);
  dart.setStaticMethodSignature(svg$.ClipPathElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.ClipPathElement, () => dart.global.Object.setPrototypeOf({[S$3.$clipPathUnits]: T$7.AnimatedEnumerationN()}, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.ClipPathElement))));
  dart.setLibraryUri(svg$.ClipPathElement, I[176]);
  dart.registerExtension("SVGClipPathElement", svg$.ClipPathElement);
  svg$.DefsElement = class DefsElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.DefsElement.__();
    }
    static new() {
      return T$7.DefsElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("defs"));
    }
    static ['_#new#tearOff']() {
      return svg$.DefsElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.DefsElement.created();
    }
  };
  (svg$.DefsElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.DefsElement).created.call(this);
    ;
  }).prototype = svg$.DefsElement.prototype;
  dart.addRtiResources(svg$.DefsElement, ["svg|DefsElement"]);
  dart.setStaticMethodSignature(svg$.DefsElement, () => ['__', 'new']);
  dart.setLibraryUri(svg$.DefsElement, I[176]);
  dart.registerExtension("SVGDefsElement", svg$.DefsElement);
  svg$.DescElement = class DescElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.DescElement.__();
    }
    static new() {
      return T$7.DescElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("desc"));
    }
    static ['_#new#tearOff']() {
      return svg$.DescElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.DescElement.created();
    }
  };
  (svg$.DescElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.DescElement).created.call(this);
    ;
  }).prototype = svg$.DescElement.prototype;
  dart.addRtiResources(svg$.DescElement, ["svg|DescElement"]);
  dart.setStaticMethodSignature(svg$.DescElement, () => ['__', 'new']);
  dart.setLibraryUri(svg$.DescElement, I[176]);
  dart.registerExtension("SVGDescElement", svg$.DescElement);
  svg$.DiscardElement = class DiscardElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.DiscardElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.DiscardElement.created();
    }
  };
  (svg$.DiscardElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.DiscardElement).created.call(this);
    ;
  }).prototype = svg$.DiscardElement.prototype;
  dart.addRtiResources(svg$.DiscardElement, ["svg|DiscardElement"]);
  dart.setStaticMethodSignature(svg$.DiscardElement, () => ['__']);
  dart.setLibraryUri(svg$.DiscardElement, I[176]);
  dart.registerExtension("SVGDiscardElement", svg$.DiscardElement);
  svg$.EllipseElement = class EllipseElement extends svg$.GeometryElement {
    static ['_#_#tearOff']() {
      return svg$.EllipseElement.__();
    }
    static new() {
      return T$7.EllipseElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("ellipse"));
    }
    static ['_#new#tearOff']() {
      return svg$.EllipseElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.EllipseElement.created();
    }
    get [S$3.$cx]() {
      return this.cx;
    }
    get [S$3.$cy]() {
      return this.cy;
    }
    get [S$3.$rx]() {
      return this.rx;
    }
    get [S$3.$ry]() {
      return this.ry;
    }
  };
  (svg$.EllipseElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.EllipseElement).created.call(this);
    ;
  }).prototype = svg$.EllipseElement.prototype;
  dart.addRtiResources(svg$.EllipseElement, ["svg|EllipseElement"]);
  dart.setStaticMethodSignature(svg$.EllipseElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.EllipseElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$cx]: T$7.AnimatedLengthN(),
    [S$3.$cy]: T$7.AnimatedLengthN(),
    [S$3.$rx]: T$7.AnimatedLengthN(),
    [S$3.$ry]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.EllipseElement))));
  dart.setLibraryUri(svg$.EllipseElement, I[176]);
  dart.registerExtension("SVGEllipseElement", svg$.EllipseElement);
  svg$.FEBlendElement = class FEBlendElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEBlendElement.__();
    }
    static new() {
      return T$7.FEBlendElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feBlend"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEBlendElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEBlendElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feBlend")) && T$7.FEBlendElement()[_is](svg$.SvgElement.tag("feBlend"));
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [S$3.$in2]() {
      return this.in2;
    }
    get [S.$mode]() {
      return this.mode;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEBlendElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEBlendElement).created.call(this);
    ;
  }).prototype = svg$.FEBlendElement.prototype;
  dart.addRtiResources(svg$.FEBlendElement, ["svg|FEBlendElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEBlendElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEBlendElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$in1]: T$7.AnimatedStringN(),
    [S$3.$in2]: T$7.AnimatedStringN(),
    [S.$mode]: T$7.AnimatedEnumerationN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEBlendElement))));
  dart.setStaticGetterSignature(svg$.FEBlendElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEBlendElement, I[176]);
  dart.setStaticFieldSignature(svg$.FEBlendElement, () => ['SVG_FEBLEND_MODE_DARKEN', 'SVG_FEBLEND_MODE_LIGHTEN', 'SVG_FEBLEND_MODE_MULTIPLY', 'SVG_FEBLEND_MODE_NORMAL', 'SVG_FEBLEND_MODE_SCREEN', 'SVG_FEBLEND_MODE_UNKNOWN']);
  dart.defineLazy(svg$.FEBlendElement, {
    /*svg$.FEBlendElement.SVG_FEBLEND_MODE_DARKEN*/get SVG_FEBLEND_MODE_DARKEN() {
      return 4;
    },
    /*svg$.FEBlendElement.SVG_FEBLEND_MODE_LIGHTEN*/get SVG_FEBLEND_MODE_LIGHTEN() {
      return 5;
    },
    /*svg$.FEBlendElement.SVG_FEBLEND_MODE_MULTIPLY*/get SVG_FEBLEND_MODE_MULTIPLY() {
      return 2;
    },
    /*svg$.FEBlendElement.SVG_FEBLEND_MODE_NORMAL*/get SVG_FEBLEND_MODE_NORMAL() {
      return 1;
    },
    /*svg$.FEBlendElement.SVG_FEBLEND_MODE_SCREEN*/get SVG_FEBLEND_MODE_SCREEN() {
      return 3;
    },
    /*svg$.FEBlendElement.SVG_FEBLEND_MODE_UNKNOWN*/get SVG_FEBLEND_MODE_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGFEBlendElement", svg$.FEBlendElement);
  svg$.FEColorMatrixElement = class FEColorMatrixElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEColorMatrixElement.__();
    }
    static new() {
      return T$7.FEColorMatrixElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feColorMatrix"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEColorMatrixElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEColorMatrixElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feColorMatrix")) && T$7.FEColorMatrixElement()[_is](svg$.SvgElement.tag("feColorMatrix"));
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [S.$type]() {
      return this.type;
    }
    get [$values]() {
      return this.values;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEColorMatrixElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEColorMatrixElement).created.call(this);
    ;
  }).prototype = svg$.FEColorMatrixElement.prototype;
  dart.addRtiResources(svg$.FEColorMatrixElement, ["svg|FEColorMatrixElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEColorMatrixElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEColorMatrixElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$in1]: T$7.AnimatedString(),
    [S.$type]: T$7.AnimatedEnumerationN(),
    [$values]: T$7.AnimatedNumberListN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEColorMatrixElement))));
  dart.setStaticGetterSignature(svg$.FEColorMatrixElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEColorMatrixElement, I[176]);
  dart.setStaticFieldSignature(svg$.FEColorMatrixElement, () => ['SVG_FECOLORMATRIX_TYPE_HUEROTATE', 'SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA', 'SVG_FECOLORMATRIX_TYPE_MATRIX', 'SVG_FECOLORMATRIX_TYPE_SATURATE', 'SVG_FECOLORMATRIX_TYPE_UNKNOWN']);
  dart.defineLazy(svg$.FEColorMatrixElement, {
    /*svg$.FEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_HUEROTATE*/get SVG_FECOLORMATRIX_TYPE_HUEROTATE() {
      return 3;
    },
    /*svg$.FEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA*/get SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA() {
      return 4;
    },
    /*svg$.FEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_MATRIX*/get SVG_FECOLORMATRIX_TYPE_MATRIX() {
      return 1;
    },
    /*svg$.FEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_SATURATE*/get SVG_FECOLORMATRIX_TYPE_SATURATE() {
      return 2;
    },
    /*svg$.FEColorMatrixElement.SVG_FECOLORMATRIX_TYPE_UNKNOWN*/get SVG_FECOLORMATRIX_TYPE_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGFEColorMatrixElement", svg$.FEColorMatrixElement);
  svg$.FEComponentTransferElement = class FEComponentTransferElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEComponentTransferElement.__();
    }
    static new() {
      return T$7.FEComponentTransferElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feComponentTransfer"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEComponentTransferElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEComponentTransferElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feComponentTransfer")) && T$7.FEComponentTransferElement()[_is](svg$.SvgElement.tag("feComponentTransfer"));
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEComponentTransferElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEComponentTransferElement).created.call(this);
    ;
  }).prototype = svg$.FEComponentTransferElement.prototype;
  dart.addRtiResources(svg$.FEComponentTransferElement, ["svg|FEComponentTransferElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEComponentTransferElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEComponentTransferElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$in1]: T$7.AnimatedStringN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEComponentTransferElement))));
  dart.setStaticGetterSignature(svg$.FEComponentTransferElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEComponentTransferElement, I[176]);
  dart.registerExtension("SVGFEComponentTransferElement", svg$.FEComponentTransferElement);
  svg$.FECompositeElement = class FECompositeElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FECompositeElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.FECompositeElement.created();
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [S$3.$in2]() {
      return this.in2;
    }
    get [S$3.$k1]() {
      return this.k1;
    }
    get [S$3.$k2]() {
      return this.k2;
    }
    get [S$3.$k3]() {
      return this.k3;
    }
    get [S$3.$k4]() {
      return this.k4;
    }
    get [S$3.$operator]() {
      return this.operator;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FECompositeElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FECompositeElement).created.call(this);
    ;
  }).prototype = svg$.FECompositeElement.prototype;
  dart.addRtiResources(svg$.FECompositeElement, ["svg|FECompositeElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FECompositeElement, () => ['__']);
  dart.setGetterSignature(svg$.FECompositeElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$in1]: T$7.AnimatedStringN(),
    [S$3.$in2]: T$7.AnimatedStringN(),
    [S$3.$k1]: T$7.AnimatedNumberN(),
    [S$3.$k2]: T$7.AnimatedNumberN(),
    [S$3.$k3]: T$7.AnimatedNumberN(),
    [S$3.$k4]: T$7.AnimatedNumberN(),
    [S$3.$operator]: T$7.AnimatedEnumerationN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FECompositeElement))));
  dart.setLibraryUri(svg$.FECompositeElement, I[176]);
  dart.setStaticFieldSignature(svg$.FECompositeElement, () => ['SVG_FECOMPOSITE_OPERATOR_ARITHMETIC', 'SVG_FECOMPOSITE_OPERATOR_ATOP', 'SVG_FECOMPOSITE_OPERATOR_IN', 'SVG_FECOMPOSITE_OPERATOR_OUT', 'SVG_FECOMPOSITE_OPERATOR_OVER', 'SVG_FECOMPOSITE_OPERATOR_UNKNOWN', 'SVG_FECOMPOSITE_OPERATOR_XOR']);
  dart.defineLazy(svg$.FECompositeElement, {
    /*svg$.FECompositeElement.SVG_FECOMPOSITE_OPERATOR_ARITHMETIC*/get SVG_FECOMPOSITE_OPERATOR_ARITHMETIC() {
      return 6;
    },
    /*svg$.FECompositeElement.SVG_FECOMPOSITE_OPERATOR_ATOP*/get SVG_FECOMPOSITE_OPERATOR_ATOP() {
      return 4;
    },
    /*svg$.FECompositeElement.SVG_FECOMPOSITE_OPERATOR_IN*/get SVG_FECOMPOSITE_OPERATOR_IN() {
      return 2;
    },
    /*svg$.FECompositeElement.SVG_FECOMPOSITE_OPERATOR_OUT*/get SVG_FECOMPOSITE_OPERATOR_OUT() {
      return 3;
    },
    /*svg$.FECompositeElement.SVG_FECOMPOSITE_OPERATOR_OVER*/get SVG_FECOMPOSITE_OPERATOR_OVER() {
      return 1;
    },
    /*svg$.FECompositeElement.SVG_FECOMPOSITE_OPERATOR_UNKNOWN*/get SVG_FECOMPOSITE_OPERATOR_UNKNOWN() {
      return 0;
    },
    /*svg$.FECompositeElement.SVG_FECOMPOSITE_OPERATOR_XOR*/get SVG_FECOMPOSITE_OPERATOR_XOR() {
      return 5;
    }
  }, false);
  dart.registerExtension("SVGFECompositeElement", svg$.FECompositeElement);
  svg$.FEConvolveMatrixElement = class FEConvolveMatrixElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEConvolveMatrixElement.__();
    }
    static new() {
      return T$7.FEConvolveMatrixElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feConvolveMatrix"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEConvolveMatrixElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEConvolveMatrixElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feConvolveMatrix")) && T$7.FEConvolveMatrixElement()[_is](svg$.SvgElement.tag("feConvolveMatrix"));
    }
    get [S$3.$bias]() {
      return this.bias;
    }
    get [S$3.$divisor]() {
      return this.divisor;
    }
    get [S$3.$edgeMode]() {
      return this.edgeMode;
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [S$3.$kernelMatrix]() {
      return this.kernelMatrix;
    }
    get [S$3.$kernelUnitLengthX]() {
      return this.kernelUnitLengthX;
    }
    get [S$3.$kernelUnitLengthY]() {
      return this.kernelUnitLengthY;
    }
    get [S$3.$orderX]() {
      return this.orderX;
    }
    get [S$3.$orderY]() {
      return this.orderY;
    }
    get [S$3.$preserveAlpha]() {
      return this.preserveAlpha;
    }
    get [S$3.$targetX]() {
      return this.targetX;
    }
    get [S$3.$targetY]() {
      return this.targetY;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEConvolveMatrixElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEConvolveMatrixElement).created.call(this);
    ;
  }).prototype = svg$.FEConvolveMatrixElement.prototype;
  dart.addRtiResources(svg$.FEConvolveMatrixElement, ["svg|FEConvolveMatrixElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEConvolveMatrixElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEConvolveMatrixElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$bias]: T$7.AnimatedNumberN(),
    [S$3.$divisor]: T$7.AnimatedNumberN(),
    [S$3.$edgeMode]: T$7.AnimatedEnumerationN(),
    [S$3.$in1]: T$7.AnimatedStringN(),
    [S$3.$kernelMatrix]: T$7.AnimatedNumberListN(),
    [S$3.$kernelUnitLengthX]: T$7.AnimatedNumberN(),
    [S$3.$kernelUnitLengthY]: T$7.AnimatedNumberN(),
    [S$3.$orderX]: T$7.AnimatedIntegerN(),
    [S$3.$orderY]: T$7.AnimatedIntegerN(),
    [S$3.$preserveAlpha]: T$7.AnimatedBooleanN(),
    [S$3.$targetX]: T$7.AnimatedIntegerN(),
    [S$3.$targetY]: T$7.AnimatedIntegerN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEConvolveMatrixElement))));
  dart.setStaticGetterSignature(svg$.FEConvolveMatrixElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEConvolveMatrixElement, I[176]);
  dart.setStaticFieldSignature(svg$.FEConvolveMatrixElement, () => ['SVG_EDGEMODE_DUPLICATE', 'SVG_EDGEMODE_NONE', 'SVG_EDGEMODE_UNKNOWN', 'SVG_EDGEMODE_WRAP']);
  dart.defineLazy(svg$.FEConvolveMatrixElement, {
    /*svg$.FEConvolveMatrixElement.SVG_EDGEMODE_DUPLICATE*/get SVG_EDGEMODE_DUPLICATE() {
      return 1;
    },
    /*svg$.FEConvolveMatrixElement.SVG_EDGEMODE_NONE*/get SVG_EDGEMODE_NONE() {
      return 3;
    },
    /*svg$.FEConvolveMatrixElement.SVG_EDGEMODE_UNKNOWN*/get SVG_EDGEMODE_UNKNOWN() {
      return 0;
    },
    /*svg$.FEConvolveMatrixElement.SVG_EDGEMODE_WRAP*/get SVG_EDGEMODE_WRAP() {
      return 2;
    }
  }, false);
  dart.registerExtension("SVGFEConvolveMatrixElement", svg$.FEConvolveMatrixElement);
  svg$.FEDiffuseLightingElement = class FEDiffuseLightingElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEDiffuseLightingElement.__();
    }
    static new() {
      return T$7.FEDiffuseLightingElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feDiffuseLighting"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEDiffuseLightingElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEDiffuseLightingElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feDiffuseLighting")) && T$7.FEDiffuseLightingElement()[_is](svg$.SvgElement.tag("feDiffuseLighting"));
    }
    get [S$3.$diffuseConstant]() {
      return this.diffuseConstant;
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [S$3.$kernelUnitLengthX]() {
      return this.kernelUnitLengthX;
    }
    get [S$3.$kernelUnitLengthY]() {
      return this.kernelUnitLengthY;
    }
    get [S$3.$surfaceScale]() {
      return this.surfaceScale;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEDiffuseLightingElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEDiffuseLightingElement).created.call(this);
    ;
  }).prototype = svg$.FEDiffuseLightingElement.prototype;
  dart.addRtiResources(svg$.FEDiffuseLightingElement, ["svg|FEDiffuseLightingElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEDiffuseLightingElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEDiffuseLightingElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$diffuseConstant]: T$7.AnimatedNumberN(),
    [S$3.$in1]: T$7.AnimatedStringN(),
    [S$3.$kernelUnitLengthX]: T$7.AnimatedNumberN(),
    [S$3.$kernelUnitLengthY]: T$7.AnimatedNumberN(),
    [S$3.$surfaceScale]: T$7.AnimatedNumberN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEDiffuseLightingElement))));
  dart.setStaticGetterSignature(svg$.FEDiffuseLightingElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEDiffuseLightingElement, I[176]);
  dart.registerExtension("SVGFEDiffuseLightingElement", svg$.FEDiffuseLightingElement);
  svg$.FEDisplacementMapElement = class FEDisplacementMapElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEDisplacementMapElement.__();
    }
    static new() {
      return T$7.FEDisplacementMapElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feDisplacementMap"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEDisplacementMapElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEDisplacementMapElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feDisplacementMap")) && T$7.FEDisplacementMapElement()[_is](svg$.SvgElement.tag("feDisplacementMap"));
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [S$3.$in2]() {
      return this.in2;
    }
    get [S$.$scale]() {
      return this.scale;
    }
    get [S$3.$xChannelSelector]() {
      return this.xChannelSelector;
    }
    get [S$3.$yChannelSelector]() {
      return this.yChannelSelector;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEDisplacementMapElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEDisplacementMapElement).created.call(this);
    ;
  }).prototype = svg$.FEDisplacementMapElement.prototype;
  dart.addRtiResources(svg$.FEDisplacementMapElement, ["svg|FEDisplacementMapElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEDisplacementMapElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEDisplacementMapElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$in1]: T$7.AnimatedStringN(),
    [S$3.$in2]: T$7.AnimatedStringN(),
    [S$.$scale]: T$7.AnimatedNumberN(),
    [S$3.$xChannelSelector]: T$7.AnimatedEnumerationN(),
    [S$3.$yChannelSelector]: T$7.AnimatedEnumerationN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEDisplacementMapElement))));
  dart.setStaticGetterSignature(svg$.FEDisplacementMapElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEDisplacementMapElement, I[176]);
  dart.setStaticFieldSignature(svg$.FEDisplacementMapElement, () => ['SVG_CHANNEL_A', 'SVG_CHANNEL_B', 'SVG_CHANNEL_G', 'SVG_CHANNEL_R', 'SVG_CHANNEL_UNKNOWN']);
  dart.defineLazy(svg$.FEDisplacementMapElement, {
    /*svg$.FEDisplacementMapElement.SVG_CHANNEL_A*/get SVG_CHANNEL_A() {
      return 4;
    },
    /*svg$.FEDisplacementMapElement.SVG_CHANNEL_B*/get SVG_CHANNEL_B() {
      return 3;
    },
    /*svg$.FEDisplacementMapElement.SVG_CHANNEL_G*/get SVG_CHANNEL_G() {
      return 2;
    },
    /*svg$.FEDisplacementMapElement.SVG_CHANNEL_R*/get SVG_CHANNEL_R() {
      return 1;
    },
    /*svg$.FEDisplacementMapElement.SVG_CHANNEL_UNKNOWN*/get SVG_CHANNEL_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGFEDisplacementMapElement", svg$.FEDisplacementMapElement);
  svg$.FEDistantLightElement = class FEDistantLightElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEDistantLightElement.__();
    }
    static new() {
      return T$7.FEDistantLightElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feDistantLight"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEDistantLightElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEDistantLightElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feDistantLight")) && T$7.FEDistantLightElement()[_is](svg$.SvgElement.tag("feDistantLight"));
    }
    get [S$3.$azimuth]() {
      return this.azimuth;
    }
    get [S$3.$elevation]() {
      return this.elevation;
    }
  };
  (svg$.FEDistantLightElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEDistantLightElement).created.call(this);
    ;
  }).prototype = svg$.FEDistantLightElement.prototype;
  dart.addRtiResources(svg$.FEDistantLightElement, ["svg|FEDistantLightElement"]);
  dart.setStaticMethodSignature(svg$.FEDistantLightElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEDistantLightElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$azimuth]: T$7.AnimatedNumberN(),
    [S$3.$elevation]: T$7.AnimatedNumberN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEDistantLightElement))));
  dart.setStaticGetterSignature(svg$.FEDistantLightElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEDistantLightElement, I[176]);
  dart.registerExtension("SVGFEDistantLightElement", svg$.FEDistantLightElement);
  svg$.FEFloodElement = class FEFloodElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEFloodElement.__();
    }
    static new() {
      return T$7.FEFloodElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feFlood"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEFloodElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEFloodElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feFlood")) && T$7.FEFloodElement()[_is](svg$.SvgElement.tag("feFlood"));
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEFloodElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEFloodElement).created.call(this);
    ;
  }).prototype = svg$.FEFloodElement.prototype;
  dart.addRtiResources(svg$.FEFloodElement, ["svg|FEFloodElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEFloodElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEFloodElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEFloodElement))));
  dart.setStaticGetterSignature(svg$.FEFloodElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEFloodElement, I[176]);
  dart.registerExtension("SVGFEFloodElement", svg$.FEFloodElement);
  svg$._SVGComponentTransferFunctionElement = class _SVGComponentTransferFunctionElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$._SVGComponentTransferFunctionElement.__();
    }
  };
  (svg$._SVGComponentTransferFunctionElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$._SVGComponentTransferFunctionElement).created.call(this);
    ;
  }).prototype = svg$._SVGComponentTransferFunctionElement.prototype;
  dart.addRtiResources(svg$._SVGComponentTransferFunctionElement, ["svg|_SVGComponentTransferFunctionElement"]);
  dart.setStaticMethodSignature(svg$._SVGComponentTransferFunctionElement, () => ['__']);
  dart.setLibraryUri(svg$._SVGComponentTransferFunctionElement, I[176]);
  dart.registerExtension("SVGComponentTransferFunctionElement", svg$._SVGComponentTransferFunctionElement);
  svg$.FEFuncAElement = class FEFuncAElement extends svg$._SVGComponentTransferFunctionElement {
    static ['_#_#tearOff']() {
      return svg$.FEFuncAElement.__();
    }
    static new() {
      return T$7.FEFuncAElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feFuncA"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEFuncAElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEFuncAElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feFuncA")) && T$7.FEFuncAElement()[_is](svg$.SvgElement.tag("feFuncA"));
    }
  };
  (svg$.FEFuncAElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEFuncAElement).created.call(this);
    ;
  }).prototype = svg$.FEFuncAElement.prototype;
  dart.addRtiResources(svg$.FEFuncAElement, ["svg|FEFuncAElement"]);
  dart.setStaticMethodSignature(svg$.FEFuncAElement, () => ['__', 'new']);
  dart.setStaticGetterSignature(svg$.FEFuncAElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEFuncAElement, I[176]);
  dart.registerExtension("SVGFEFuncAElement", svg$.FEFuncAElement);
  svg$.FEFuncBElement = class FEFuncBElement extends svg$._SVGComponentTransferFunctionElement {
    static ['_#_#tearOff']() {
      return svg$.FEFuncBElement.__();
    }
    static new() {
      return T$7.FEFuncBElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feFuncB"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEFuncBElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEFuncBElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feFuncB")) && T$7.FEFuncBElement()[_is](svg$.SvgElement.tag("feFuncB"));
    }
  };
  (svg$.FEFuncBElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEFuncBElement).created.call(this);
    ;
  }).prototype = svg$.FEFuncBElement.prototype;
  dart.addRtiResources(svg$.FEFuncBElement, ["svg|FEFuncBElement"]);
  dart.setStaticMethodSignature(svg$.FEFuncBElement, () => ['__', 'new']);
  dart.setStaticGetterSignature(svg$.FEFuncBElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEFuncBElement, I[176]);
  dart.registerExtension("SVGFEFuncBElement", svg$.FEFuncBElement);
  svg$.FEFuncGElement = class FEFuncGElement extends svg$._SVGComponentTransferFunctionElement {
    static ['_#_#tearOff']() {
      return svg$.FEFuncGElement.__();
    }
    static new() {
      return T$7.FEFuncGElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feFuncG"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEFuncGElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEFuncGElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feFuncG")) && T$7.FEFuncGElement()[_is](svg$.SvgElement.tag("feFuncG"));
    }
  };
  (svg$.FEFuncGElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEFuncGElement).created.call(this);
    ;
  }).prototype = svg$.FEFuncGElement.prototype;
  dart.addRtiResources(svg$.FEFuncGElement, ["svg|FEFuncGElement"]);
  dart.setStaticMethodSignature(svg$.FEFuncGElement, () => ['__', 'new']);
  dart.setStaticGetterSignature(svg$.FEFuncGElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEFuncGElement, I[176]);
  dart.registerExtension("SVGFEFuncGElement", svg$.FEFuncGElement);
  svg$.FEFuncRElement = class FEFuncRElement extends svg$._SVGComponentTransferFunctionElement {
    static ['_#_#tearOff']() {
      return svg$.FEFuncRElement.__();
    }
    static new() {
      return T$7.FEFuncRElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feFuncR"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEFuncRElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEFuncRElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feFuncR")) && T$7.FEFuncRElement()[_is](svg$.SvgElement.tag("feFuncR"));
    }
  };
  (svg$.FEFuncRElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEFuncRElement).created.call(this);
    ;
  }).prototype = svg$.FEFuncRElement.prototype;
  dart.addRtiResources(svg$.FEFuncRElement, ["svg|FEFuncRElement"]);
  dart.setStaticMethodSignature(svg$.FEFuncRElement, () => ['__', 'new']);
  dart.setStaticGetterSignature(svg$.FEFuncRElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEFuncRElement, I[176]);
  dart.registerExtension("SVGFEFuncRElement", svg$.FEFuncRElement);
  svg$.FEGaussianBlurElement = class FEGaussianBlurElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEGaussianBlurElement.__();
    }
    static new() {
      return T$7.FEGaussianBlurElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feGaussianBlur"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEGaussianBlurElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEGaussianBlurElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feGaussianBlur")) && T$7.FEGaussianBlurElement()[_is](svg$.SvgElement.tag("feGaussianBlur"));
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [S$3.$stdDeviationX]() {
      return this.stdDeviationX;
    }
    get [S$3.$stdDeviationY]() {
      return this.stdDeviationY;
    }
    [S$3.$setStdDeviation](...args) {
      return this.setStdDeviation.apply(this, args);
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEGaussianBlurElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEGaussianBlurElement).created.call(this);
    ;
  }).prototype = svg$.FEGaussianBlurElement.prototype;
  dart.addRtiResources(svg$.FEGaussianBlurElement, ["svg|FEGaussianBlurElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(svg$.FEGaussianBlurElement, () => dart.global.Object.setPrototypeOf({[S$3.$setStdDeviation]: T$4.numAndnumTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.FEGaussianBlurElement))));
  dart.setStaticMethodSignature(svg$.FEGaussianBlurElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEGaussianBlurElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$in1]: T$7.AnimatedStringN(),
    [S$3.$stdDeviationX]: T$7.AnimatedNumberN(),
    [S$3.$stdDeviationY]: T$7.AnimatedNumberN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEGaussianBlurElement))));
  dart.setStaticGetterSignature(svg$.FEGaussianBlurElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEGaussianBlurElement, I[176]);
  dart.registerExtension("SVGFEGaussianBlurElement", svg$.FEGaussianBlurElement);
  svg$.FEImageElement = class FEImageElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEImageElement.__();
    }
    static new() {
      return T$7.FEImageElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feImage"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEImageElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEImageElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feImage")) && T$7.FEImageElement()[_is](svg$.SvgElement.tag("feImage"));
    }
    get [S$3.$preserveAspectRatio]() {
      return this.preserveAspectRatio;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$href]() {
      return this.href;
    }
  };
  (svg$.FEImageElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEImageElement).created.call(this);
    ;
  }).prototype = svg$.FEImageElement.prototype;
  dart.addRtiResources(svg$.FEImageElement, ["svg|FEImageElement", "svg|FilterPrimitiveStandardAttributes", "svg|UriReference", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEImageElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEImageElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$preserveAspectRatio]: T$7.AnimatedPreserveAspectRatioN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEImageElement))));
  dart.setStaticGetterSignature(svg$.FEImageElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEImageElement, I[176]);
  dart.registerExtension("SVGFEImageElement", svg$.FEImageElement);
  svg$.FEMergeElement = class FEMergeElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEMergeElement.__();
    }
    static new() {
      return T$7.FEMergeElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feMerge"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEMergeElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEMergeElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feMerge")) && T$7.FEMergeElement()[_is](svg$.SvgElement.tag("feMerge"));
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEMergeElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEMergeElement).created.call(this);
    ;
  }).prototype = svg$.FEMergeElement.prototype;
  dart.addRtiResources(svg$.FEMergeElement, ["svg|FEMergeElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEMergeElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEMergeElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEMergeElement))));
  dart.setStaticGetterSignature(svg$.FEMergeElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEMergeElement, I[176]);
  dart.registerExtension("SVGFEMergeElement", svg$.FEMergeElement);
  svg$.FEMergeNodeElement = class FEMergeNodeElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEMergeNodeElement.__();
    }
    static new() {
      return T$7.FEMergeNodeElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feMergeNode"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEMergeNodeElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEMergeNodeElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feMergeNode")) && T$7.FEMergeNodeElement()[_is](svg$.SvgElement.tag("feMergeNode"));
    }
    get [S$3.$in1]() {
      return this.in1;
    }
  };
  (svg$.FEMergeNodeElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEMergeNodeElement).created.call(this);
    ;
  }).prototype = svg$.FEMergeNodeElement.prototype;
  dart.addRtiResources(svg$.FEMergeNodeElement, ["svg|FEMergeNodeElement"]);
  dart.setStaticMethodSignature(svg$.FEMergeNodeElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEMergeNodeElement, () => dart.global.Object.setPrototypeOf({[S$3.$in1]: T$7.AnimatedStringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEMergeNodeElement))));
  dart.setStaticGetterSignature(svg$.FEMergeNodeElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEMergeNodeElement, I[176]);
  dart.registerExtension("SVGFEMergeNodeElement", svg$.FEMergeNodeElement);
  svg$.FEMorphologyElement = class FEMorphologyElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEMorphologyElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEMorphologyElement.created();
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [S$3.$operator]() {
      return this.operator;
    }
    get [S$3.$radiusX]() {
      return this.radiusX;
    }
    get [S$3.$radiusY]() {
      return this.radiusY;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEMorphologyElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEMorphologyElement).created.call(this);
    ;
  }).prototype = svg$.FEMorphologyElement.prototype;
  dart.addRtiResources(svg$.FEMorphologyElement, ["svg|FEMorphologyElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEMorphologyElement, () => ['__']);
  dart.setGetterSignature(svg$.FEMorphologyElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$in1]: T$7.AnimatedStringN(),
    [S$3.$operator]: T$7.AnimatedEnumerationN(),
    [S$3.$radiusX]: T$7.AnimatedNumberN(),
    [S$3.$radiusY]: T$7.AnimatedNumberN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEMorphologyElement))));
  dart.setLibraryUri(svg$.FEMorphologyElement, I[176]);
  dart.setStaticFieldSignature(svg$.FEMorphologyElement, () => ['SVG_MORPHOLOGY_OPERATOR_DILATE', 'SVG_MORPHOLOGY_OPERATOR_ERODE', 'SVG_MORPHOLOGY_OPERATOR_UNKNOWN']);
  dart.defineLazy(svg$.FEMorphologyElement, {
    /*svg$.FEMorphologyElement.SVG_MORPHOLOGY_OPERATOR_DILATE*/get SVG_MORPHOLOGY_OPERATOR_DILATE() {
      return 2;
    },
    /*svg$.FEMorphologyElement.SVG_MORPHOLOGY_OPERATOR_ERODE*/get SVG_MORPHOLOGY_OPERATOR_ERODE() {
      return 1;
    },
    /*svg$.FEMorphologyElement.SVG_MORPHOLOGY_OPERATOR_UNKNOWN*/get SVG_MORPHOLOGY_OPERATOR_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGFEMorphologyElement", svg$.FEMorphologyElement);
  svg$.FEOffsetElement = class FEOffsetElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEOffsetElement.__();
    }
    static new() {
      return T$7.FEOffsetElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feOffset"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEOffsetElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEOffsetElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feOffset")) && T$7.FEOffsetElement()[_is](svg$.SvgElement.tag("feOffset"));
    }
    get [S$3.$dx]() {
      return this.dx;
    }
    get [S$3.$dy]() {
      return this.dy;
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FEOffsetElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEOffsetElement).created.call(this);
    ;
  }).prototype = svg$.FEOffsetElement.prototype;
  dart.addRtiResources(svg$.FEOffsetElement, ["svg|FEOffsetElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FEOffsetElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEOffsetElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$dx]: T$7.AnimatedNumberN(),
    [S$3.$dy]: T$7.AnimatedNumberN(),
    [S$3.$in1]: T$7.AnimatedStringN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEOffsetElement))));
  dart.setStaticGetterSignature(svg$.FEOffsetElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEOffsetElement, I[176]);
  dart.registerExtension("SVGFEOffsetElement", svg$.FEOffsetElement);
  svg$.FEPointLightElement = class FEPointLightElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FEPointLightElement.__();
    }
    static new() {
      return T$7.FEPointLightElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("fePointLight"));
    }
    static ['_#new#tearOff']() {
      return svg$.FEPointLightElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FEPointLightElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("fePointLight")) && T$7.FEPointLightElement()[_is](svg$.SvgElement.tag("fePointLight"));
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$z]() {
      return this.z;
    }
  };
  (svg$.FEPointLightElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FEPointLightElement).created.call(this);
    ;
  }).prototype = svg$.FEPointLightElement.prototype;
  dart.addRtiResources(svg$.FEPointLightElement, ["svg|FEPointLightElement"]);
  dart.setStaticMethodSignature(svg$.FEPointLightElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FEPointLightElement, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$7.AnimatedNumberN(),
    [S$.$y]: T$7.AnimatedNumberN(),
    [S$.$z]: T$7.AnimatedNumberN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FEPointLightElement))));
  dart.setStaticGetterSignature(svg$.FEPointLightElement, () => ['supported']);
  dart.setLibraryUri(svg$.FEPointLightElement, I[176]);
  dart.registerExtension("SVGFEPointLightElement", svg$.FEPointLightElement);
  svg$.FESpecularLightingElement = class FESpecularLightingElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FESpecularLightingElement.__();
    }
    static new() {
      return T$7.FESpecularLightingElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feSpecularLighting"));
    }
    static ['_#new#tearOff']() {
      return svg$.FESpecularLightingElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FESpecularLightingElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feSpecularLighting")) && T$7.FESpecularLightingElement()[_is](svg$.SvgElement.tag("feSpecularLighting"));
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [S$3.$kernelUnitLengthX]() {
      return this.kernelUnitLengthX;
    }
    get [S$3.$kernelUnitLengthY]() {
      return this.kernelUnitLengthY;
    }
    get [S$3.$specularConstant]() {
      return this.specularConstant;
    }
    get [S$3.$specularExponent]() {
      return this.specularExponent;
    }
    get [S$3.$surfaceScale]() {
      return this.surfaceScale;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FESpecularLightingElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FESpecularLightingElement).created.call(this);
    ;
  }).prototype = svg$.FESpecularLightingElement.prototype;
  dart.addRtiResources(svg$.FESpecularLightingElement, ["svg|FESpecularLightingElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FESpecularLightingElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FESpecularLightingElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$in1]: T$7.AnimatedStringN(),
    [S$3.$kernelUnitLengthX]: T$7.AnimatedNumberN(),
    [S$3.$kernelUnitLengthY]: T$7.AnimatedNumberN(),
    [S$3.$specularConstant]: T$7.AnimatedNumberN(),
    [S$3.$specularExponent]: T$7.AnimatedNumberN(),
    [S$3.$surfaceScale]: T$7.AnimatedNumberN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FESpecularLightingElement))));
  dart.setStaticGetterSignature(svg$.FESpecularLightingElement, () => ['supported']);
  dart.setLibraryUri(svg$.FESpecularLightingElement, I[176]);
  dart.registerExtension("SVGFESpecularLightingElement", svg$.FESpecularLightingElement);
  svg$.FESpotLightElement = class FESpotLightElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FESpotLightElement.__();
    }
    static new() {
      return T$7.FESpotLightElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feSpotLight"));
    }
    static ['_#new#tearOff']() {
      return svg$.FESpotLightElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FESpotLightElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feSpotLight")) && T$7.FESpotLightElement()[_is](svg$.SvgElement.tag("feSpotLight"));
    }
    get [S$3.$limitingConeAngle]() {
      return this.limitingConeAngle;
    }
    get [S$3.$pointsAtX]() {
      return this.pointsAtX;
    }
    get [S$3.$pointsAtY]() {
      return this.pointsAtY;
    }
    get [S$3.$pointsAtZ]() {
      return this.pointsAtZ;
    }
    get [S$3.$specularExponent]() {
      return this.specularExponent;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$z]() {
      return this.z;
    }
  };
  (svg$.FESpotLightElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FESpotLightElement).created.call(this);
    ;
  }).prototype = svg$.FESpotLightElement.prototype;
  dart.addRtiResources(svg$.FESpotLightElement, ["svg|FESpotLightElement"]);
  dart.setStaticMethodSignature(svg$.FESpotLightElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FESpotLightElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$limitingConeAngle]: T$7.AnimatedNumberN(),
    [S$3.$pointsAtX]: T$7.AnimatedNumberN(),
    [S$3.$pointsAtY]: T$7.AnimatedNumberN(),
    [S$3.$pointsAtZ]: T$7.AnimatedNumberN(),
    [S$3.$specularExponent]: T$7.AnimatedNumberN(),
    [S$.$x]: T$7.AnimatedNumberN(),
    [S$.$y]: T$7.AnimatedNumberN(),
    [S$.$z]: T$7.AnimatedNumberN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FESpotLightElement))));
  dart.setStaticGetterSignature(svg$.FESpotLightElement, () => ['supported']);
  dart.setLibraryUri(svg$.FESpotLightElement, I[176]);
  dart.registerExtension("SVGFESpotLightElement", svg$.FESpotLightElement);
  svg$.FETileElement = class FETileElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FETileElement.__();
    }
    static new() {
      return T$7.FETileElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feTile"));
    }
    static ['_#new#tearOff']() {
      return svg$.FETileElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FETileElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feTile")) && T$7.FETileElement()[_is](svg$.SvgElement.tag("feTile"));
    }
    get [S$3.$in1]() {
      return this.in1;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FETileElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FETileElement).created.call(this);
    ;
  }).prototype = svg$.FETileElement.prototype;
  dart.addRtiResources(svg$.FETileElement, ["svg|FETileElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FETileElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FETileElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$in1]: T$7.AnimatedStringN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FETileElement))));
  dart.setStaticGetterSignature(svg$.FETileElement, () => ['supported']);
  dart.setLibraryUri(svg$.FETileElement, I[176]);
  dart.registerExtension("SVGFETileElement", svg$.FETileElement);
  svg$.FETurbulenceElement = class FETurbulenceElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FETurbulenceElement.__();
    }
    static new() {
      return T$7.FETurbulenceElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("feTurbulence"));
    }
    static ['_#new#tearOff']() {
      return svg$.FETurbulenceElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FETurbulenceElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("feTurbulence")) && T$7.FETurbulenceElement()[_is](svg$.SvgElement.tag("feTurbulence"));
    }
    get [S$3.$baseFrequencyX]() {
      return this.baseFrequencyX;
    }
    get [S$3.$baseFrequencyY]() {
      return this.baseFrequencyY;
    }
    get [S$3.$numOctaves]() {
      return this.numOctaves;
    }
    get [S$3.$seed]() {
      return this.seed;
    }
    get [S$3.$stitchTiles]() {
      return this.stitchTiles;
    }
    get [S.$type]() {
      return this.type;
    }
    get [$height]() {
      return this.height;
    }
    get [S.$result]() {
      return this.result;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.FETurbulenceElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FETurbulenceElement).created.call(this);
    ;
  }).prototype = svg$.FETurbulenceElement.prototype;
  dart.addRtiResources(svg$.FETurbulenceElement, ["svg|FETurbulenceElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FETurbulenceElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FETurbulenceElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$baseFrequencyX]: T$7.AnimatedNumberN(),
    [S$3.$baseFrequencyY]: T$7.AnimatedNumberN(),
    [S$3.$numOctaves]: T$7.AnimatedIntegerN(),
    [S$3.$seed]: T$7.AnimatedNumberN(),
    [S$3.$stitchTiles]: T$7.AnimatedEnumerationN(),
    [S.$type]: T$7.AnimatedEnumerationN(),
    [$height]: T$7.AnimatedLengthN(),
    [S.$result]: T$7.AnimatedStringN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FETurbulenceElement))));
  dart.setStaticGetterSignature(svg$.FETurbulenceElement, () => ['supported']);
  dart.setLibraryUri(svg$.FETurbulenceElement, I[176]);
  dart.setStaticFieldSignature(svg$.FETurbulenceElement, () => ['SVG_STITCHTYPE_NOSTITCH', 'SVG_STITCHTYPE_STITCH', 'SVG_STITCHTYPE_UNKNOWN', 'SVG_TURBULENCE_TYPE_FRACTALNOISE', 'SVG_TURBULENCE_TYPE_TURBULENCE', 'SVG_TURBULENCE_TYPE_UNKNOWN']);
  dart.defineLazy(svg$.FETurbulenceElement, {
    /*svg$.FETurbulenceElement.SVG_STITCHTYPE_NOSTITCH*/get SVG_STITCHTYPE_NOSTITCH() {
      return 2;
    },
    /*svg$.FETurbulenceElement.SVG_STITCHTYPE_STITCH*/get SVG_STITCHTYPE_STITCH() {
      return 1;
    },
    /*svg$.FETurbulenceElement.SVG_STITCHTYPE_UNKNOWN*/get SVG_STITCHTYPE_UNKNOWN() {
      return 0;
    },
    /*svg$.FETurbulenceElement.SVG_TURBULENCE_TYPE_FRACTALNOISE*/get SVG_TURBULENCE_TYPE_FRACTALNOISE() {
      return 1;
    },
    /*svg$.FETurbulenceElement.SVG_TURBULENCE_TYPE_TURBULENCE*/get SVG_TURBULENCE_TYPE_TURBULENCE() {
      return 2;
    },
    /*svg$.FETurbulenceElement.SVG_TURBULENCE_TYPE_UNKNOWN*/get SVG_TURBULENCE_TYPE_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGFETurbulenceElement", svg$.FETurbulenceElement);
  svg$.FilterElement = class FilterElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.FilterElement.__();
    }
    static new() {
      return T$7.FilterElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("filter"));
    }
    static ['_#new#tearOff']() {
      return svg$.FilterElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.FilterElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("filter")) && T$7.FilterElement()[_is](svg$.SvgElement.tag("filter"));
    }
    get [S$3.$filterUnits]() {
      return this.filterUnits;
    }
    get [$height]() {
      return this.height;
    }
    get [S$3.$primitiveUnits]() {
      return this.primitiveUnits;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$href]() {
      return this.href;
    }
  };
  (svg$.FilterElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.FilterElement).created.call(this);
    ;
  }).prototype = svg$.FilterElement.prototype;
  dart.addRtiResources(svg$.FilterElement, ["svg|FilterElement", "svg|UriReference", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.FilterElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.FilterElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$filterUnits]: T$7.AnimatedEnumerationN(),
    [$height]: T$7.AnimatedLengthN(),
    [S$3.$primitiveUnits]: T$7.AnimatedEnumerationN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FilterElement))));
  dart.setStaticGetterSignature(svg$.FilterElement, () => ['supported']);
  dart.setLibraryUri(svg$.FilterElement, I[176]);
  dart.registerExtension("SVGFilterElement", svg$.FilterElement);
  svg$.FilterPrimitiveStandardAttributes = class FilterPrimitiveStandardAttributes extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.FilterPrimitiveStandardAttributes.__();
    }
    get height() {
      return this.height;
    }
    get result() {
      return this.result;
    }
    get width() {
      return this.width;
    }
    get x() {
      return this.x;
    }
    get y() {
      return this.y;
    }
  };
  dart.addRtiResources(svg$.FilterPrimitiveStandardAttributes, ["svg|FilterPrimitiveStandardAttributes"]);
  dart.setStaticMethodSignature(svg$.FilterPrimitiveStandardAttributes, () => ['__']);
  dart.setGetterSignature(svg$.FilterPrimitiveStandardAttributes, () => dart.global.Object.setPrototypeOf({
    height: T$7.AnimatedLengthN(),
    [$height]: T$7.AnimatedLengthN(),
    result: T$7.AnimatedStringN(),
    [S.$result]: T$7.AnimatedStringN(),
    width: T$7.AnimatedLengthN(),
    [$width]: T$7.AnimatedLengthN(),
    x: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    y: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FilterPrimitiveStandardAttributes))));
  dart.setLibraryUri(svg$.FilterPrimitiveStandardAttributes, I[176]);
  dart.defineExtensionAccessors(svg$.FilterPrimitiveStandardAttributes, [
    'height',
    'result',
    'width',
    'x',
    'y'
  ]);
  svg$.FitToViewBox = class FitToViewBox extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.FitToViewBox.__();
    }
    get preserveAspectRatio() {
      return this.preserveAspectRatio;
    }
    get viewBox() {
      return this.viewBox;
    }
  };
  dart.addRtiResources(svg$.FitToViewBox, ["svg|FitToViewBox"]);
  dart.setStaticMethodSignature(svg$.FitToViewBox, () => ['__']);
  dart.setGetterSignature(svg$.FitToViewBox, () => dart.global.Object.setPrototypeOf({
    preserveAspectRatio: T$7.AnimatedPreserveAspectRatioN(),
    [S$3.$preserveAspectRatio]: T$7.AnimatedPreserveAspectRatioN(),
    viewBox: T$7.AnimatedRectN(),
    [S$3.$viewBox]: T$7.AnimatedRectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.FitToViewBox))));
  dart.setLibraryUri(svg$.FitToViewBox, I[176]);
  dart.defineExtensionAccessors(svg$.FitToViewBox, ['preserveAspectRatio', 'viewBox']);
  svg$.ForeignObjectElement = class ForeignObjectElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.ForeignObjectElement.__();
    }
    static new() {
      return T$7.ForeignObjectElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("foreignObject"));
    }
    static ['_#new#tearOff']() {
      return svg$.ForeignObjectElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.ForeignObjectElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("foreignObject")) && T$7.ForeignObjectElement()[_is](svg$.SvgElement.tag("foreignObject"));
    }
    get [$height]() {
      return this.height;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.ForeignObjectElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.ForeignObjectElement).created.call(this);
    ;
  }).prototype = svg$.ForeignObjectElement.prototype;
  dart.addRtiResources(svg$.ForeignObjectElement, ["svg|ForeignObjectElement"]);
  dart.setStaticMethodSignature(svg$.ForeignObjectElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.ForeignObjectElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$7.AnimatedLengthN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.ForeignObjectElement))));
  dart.setStaticGetterSignature(svg$.ForeignObjectElement, () => ['supported']);
  dart.setLibraryUri(svg$.ForeignObjectElement, I[176]);
  dart.registerExtension("SVGForeignObjectElement", svg$.ForeignObjectElement);
  svg$.GElement = class GElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.GElement.__();
    }
    static new() {
      return T$7.GElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("g"));
    }
    static ['_#new#tearOff']() {
      return svg$.GElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.GElement.created();
    }
  };
  (svg$.GElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.GElement).created.call(this);
    ;
  }).prototype = svg$.GElement.prototype;
  dart.addRtiResources(svg$.GElement, ["svg|GElement"]);
  dart.setStaticMethodSignature(svg$.GElement, () => ['__', 'new']);
  dart.setLibraryUri(svg$.GElement, I[176]);
  dart.registerExtension("SVGGElement", svg$.GElement);
  svg$.ImageElement = class ImageElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.ImageElement.__();
    }
    static new() {
      return T$7.ImageElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("image"));
    }
    static ['_#new#tearOff']() {
      return svg$.ImageElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.ImageElement.created();
    }
    get [S$1.$async]() {
      return this.async;
    }
    set [S$1.$async](value) {
      this.async = value;
    }
    get [$height]() {
      return this.height;
    }
    get [S$3.$preserveAspectRatio]() {
      return this.preserveAspectRatio;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    [S$1.$decode]() {
      return js_util.promiseToFuture(T$.dynamic(), this.decode());
    }
    get [S$.$href]() {
      return this.href;
    }
  };
  (svg$.ImageElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.ImageElement).created.call(this);
    ;
  }).prototype = svg$.ImageElement.prototype;
  dart.addRtiResources(svg$.ImageElement, ["svg|ImageElement", "svg|UriReference", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(svg$.ImageElement, () => dart.global.Object.setPrototypeOf({[S$1.$decode]: T$.VoidToFuture()}, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.ImageElement))));
  dart.setStaticMethodSignature(svg$.ImageElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.ImageElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$async]: T$.StringN(),
    [$height]: T$7.AnimatedLengthN(),
    [S$3.$preserveAspectRatio]: T$7.AnimatedPreserveAspectRatioN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.ImageElement))));
  dart.setSetterSignature(svg$.ImageElement, () => dart.global.Object.setPrototypeOf({[S$1.$async]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.ImageElement))));
  dart.setLibraryUri(svg$.ImageElement, I[176]);
  dart.registerExtension("SVGImageElement", svg$.ImageElement);
  svg$.Length = class Length extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.Length.__();
    }
    get [S$3.$unitType]() {
      return this.unitType;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
    get [S$3.$valueAsString]() {
      return this.valueAsString;
    }
    set [S$3.$valueAsString](value) {
      this.valueAsString = value;
    }
    get [S$3.$valueInSpecifiedUnits]() {
      return this.valueInSpecifiedUnits;
    }
    set [S$3.$valueInSpecifiedUnits](value) {
      this.valueInSpecifiedUnits = value;
    }
    [S$3.$convertToSpecifiedUnits](...args) {
      return this.convertToSpecifiedUnits.apply(this, args);
    }
    [S$3.$newValueSpecifiedUnits](...args) {
      return this.newValueSpecifiedUnits.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.Length, ["svg|Length"]);
  dart.setMethodSignature(svg$.Length, () => dart.global.Object.setPrototypeOf({
    [S$3.$convertToSpecifiedUnits]: T$.intTovoid(),
    [S$3.$newValueSpecifiedUnits]: T$7.intAndnumTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.Length))));
  dart.setStaticMethodSignature(svg$.Length, () => ['__']);
  dart.setGetterSignature(svg$.Length, () => dart.global.Object.setPrototypeOf({
    [S$3.$unitType]: T$.intN(),
    [S.$value]: T$3.numN(),
    [S$3.$valueAsString]: T$.StringN(),
    [S$3.$valueInSpecifiedUnits]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.Length))));
  dart.setSetterSignature(svg$.Length, () => dart.global.Object.setPrototypeOf({
    [S.$value]: T$3.numN(),
    [S$3.$valueAsString]: T$.StringN(),
    [S$3.$valueInSpecifiedUnits]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.Length))));
  dart.setLibraryUri(svg$.Length, I[176]);
  dart.setStaticFieldSignature(svg$.Length, () => ['SVG_LENGTHTYPE_CM', 'SVG_LENGTHTYPE_EMS', 'SVG_LENGTHTYPE_EXS', 'SVG_LENGTHTYPE_IN', 'SVG_LENGTHTYPE_MM', 'SVG_LENGTHTYPE_NUMBER', 'SVG_LENGTHTYPE_PC', 'SVG_LENGTHTYPE_PERCENTAGE', 'SVG_LENGTHTYPE_PT', 'SVG_LENGTHTYPE_PX', 'SVG_LENGTHTYPE_UNKNOWN']);
  dart.defineLazy(svg$.Length, {
    /*svg$.Length.SVG_LENGTHTYPE_CM*/get SVG_LENGTHTYPE_CM() {
      return 6;
    },
    /*svg$.Length.SVG_LENGTHTYPE_EMS*/get SVG_LENGTHTYPE_EMS() {
      return 3;
    },
    /*svg$.Length.SVG_LENGTHTYPE_EXS*/get SVG_LENGTHTYPE_EXS() {
      return 4;
    },
    /*svg$.Length.SVG_LENGTHTYPE_IN*/get SVG_LENGTHTYPE_IN() {
      return 8;
    },
    /*svg$.Length.SVG_LENGTHTYPE_MM*/get SVG_LENGTHTYPE_MM() {
      return 7;
    },
    /*svg$.Length.SVG_LENGTHTYPE_NUMBER*/get SVG_LENGTHTYPE_NUMBER() {
      return 1;
    },
    /*svg$.Length.SVG_LENGTHTYPE_PC*/get SVG_LENGTHTYPE_PC() {
      return 10;
    },
    /*svg$.Length.SVG_LENGTHTYPE_PERCENTAGE*/get SVG_LENGTHTYPE_PERCENTAGE() {
      return 2;
    },
    /*svg$.Length.SVG_LENGTHTYPE_PT*/get SVG_LENGTHTYPE_PT() {
      return 9;
    },
    /*svg$.Length.SVG_LENGTHTYPE_PX*/get SVG_LENGTHTYPE_PX() {
      return 5;
    },
    /*svg$.Length.SVG_LENGTHTYPE_UNKNOWN*/get SVG_LENGTHTYPE_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGLength", svg$.Length);
  const JavaScriptObject_ListBase$36$13 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$13.new = function() {
    G$.ListBaseOfLength().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$13).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$13.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$13, G$.ListBaseOfLength());
  const JavaScriptObject_ImmutableListMixin$36$13 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$13 {};
  (JavaScriptObject_ImmutableListMixin$36$13.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$13).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$13.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$13, G$.ImmutableListMixinOfLength());
  svg$.LengthList = class LengthList extends JavaScriptObject_ImmutableListMixin$36$13 {
    static ['_#_#tearOff']() {
      return svg$.LengthList.__();
    }
    get [$length]() {
      return this.length;
    }
    get [S$3.$numberOfItems]() {
      return this.numberOfItems;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[175], 2056, 26, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this.getItem(index);
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[175], 2062, 25, "index");
      T$7.Length()[_as](value);
      if (value == null) dart.nullFailed(I[175], 2062, 39, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](newLength) {
      if (newLength == null) dart.nullFailed(I[175], 2068, 18, "newLength");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[175], 2096, 24, "index");
      return this[$_get](index);
    }
    [S$3.__setter__$1](...args) {
      return this.__setter__.apply(this, args);
    }
    [S$3.$appendItem](...args) {
      return this.appendItem.apply(this, args);
    }
    [$clear](...args) {
      return this.clear.apply(this, args);
    }
    [S$3.$getItem](...args) {
      return this.getItem.apply(this, args);
    }
    [S$3.$initialize](...args) {
      return this.initialize.apply(this, args);
    }
    [S$3.$insertItemBefore](...args) {
      return this.insertItemBefore.apply(this, args);
    }
    [S$3.$removeItem](...args) {
      return this.removeItem.apply(this, args);
    }
    [S$3.$replaceItem](...args) {
      return this.replaceItem.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.LengthList, ["svg|LengthList", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(svg$.LengthList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$7.intToLength(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$3.__setter__$1]: T$7.intAndLengthTovoid(),
    [S$3.$appendItem]: T$7.LengthToLength(),
    [S$3.$getItem]: T$7.intToLength(),
    [S$3.$initialize]: T$7.LengthToLength(),
    [S$3.$insertItemBefore]: T$7.LengthAndintToLength(),
    [S$3.$removeItem]: T$7.intToLength(),
    [S$3.$replaceItem]: T$7.LengthAndintToLength()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.LengthList))));
  dart.setStaticMethodSignature(svg$.LengthList, () => ['__']);
  dart.setGetterSignature(svg$.LengthList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.int(),
    [S$3.$numberOfItems]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.LengthList))));
  dart.setSetterSignature(svg$.LengthList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.LengthList))));
  dart.setLibraryUri(svg$.LengthList, I[176]);
  dart.registerExtension("SVGLengthList", svg$.LengthList);
  svg$.LineElement = class LineElement extends svg$.GeometryElement {
    static ['_#_#tearOff']() {
      return svg$.LineElement.__();
    }
    static new() {
      return T$7.LineElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("line"));
    }
    static ['_#new#tearOff']() {
      return svg$.LineElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.LineElement.created();
    }
    get [S$3.$x1]() {
      return this.x1;
    }
    get [S$3.$x2]() {
      return this.x2;
    }
    get [S$3.$y1]() {
      return this.y1;
    }
    get [S$3.$y2]() {
      return this.y2;
    }
  };
  (svg$.LineElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.LineElement).created.call(this);
    ;
  }).prototype = svg$.LineElement.prototype;
  dart.addRtiResources(svg$.LineElement, ["svg|LineElement"]);
  dart.setStaticMethodSignature(svg$.LineElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.LineElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$x1]: T$7.AnimatedLengthN(),
    [S$3.$x2]: T$7.AnimatedLengthN(),
    [S$3.$y1]: T$7.AnimatedLengthN(),
    [S$3.$y2]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.LineElement))));
  dart.setLibraryUri(svg$.LineElement, I[176]);
  dart.registerExtension("SVGLineElement", svg$.LineElement);
  svg$._GradientElement = class _GradientElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$._GradientElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$._GradientElement.created();
    }
    get [S$3.$gradientTransform]() {
      return this.gradientTransform;
    }
    get [S$3.$gradientUnits]() {
      return this.gradientUnits;
    }
    get [S$3.$spreadMethod]() {
      return this.spreadMethod;
    }
    get [S$.$href]() {
      return this.href;
    }
  };
  (svg$._GradientElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$._GradientElement).created.call(this);
    ;
  }).prototype = svg$._GradientElement.prototype;
  dart.addRtiResources(svg$._GradientElement, ["svg|_GradientElement", "svg|UriReference", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$._GradientElement, () => ['__']);
  dart.setGetterSignature(svg$._GradientElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$gradientTransform]: T$7.AnimatedTransformListN(),
    [S$3.$gradientUnits]: T$7.AnimatedEnumerationN(),
    [S$3.$spreadMethod]: T$7.AnimatedEnumerationN(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$._GradientElement))));
  dart.setLibraryUri(svg$._GradientElement, I[176]);
  dart.setStaticFieldSignature(svg$._GradientElement, () => ['SVG_SPREADMETHOD_PAD', 'SVG_SPREADMETHOD_REFLECT', 'SVG_SPREADMETHOD_REPEAT', 'SVG_SPREADMETHOD_UNKNOWN']);
  dart.defineLazy(svg$._GradientElement, {
    /*svg$._GradientElement.SVG_SPREADMETHOD_PAD*/get SVG_SPREADMETHOD_PAD() {
      return 1;
    },
    /*svg$._GradientElement.SVG_SPREADMETHOD_REFLECT*/get SVG_SPREADMETHOD_REFLECT() {
      return 2;
    },
    /*svg$._GradientElement.SVG_SPREADMETHOD_REPEAT*/get SVG_SPREADMETHOD_REPEAT() {
      return 3;
    },
    /*svg$._GradientElement.SVG_SPREADMETHOD_UNKNOWN*/get SVG_SPREADMETHOD_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGGradientElement", svg$._GradientElement);
  svg$.LinearGradientElement = class LinearGradientElement extends svg$._GradientElement {
    static ['_#_#tearOff']() {
      return svg$.LinearGradientElement.__();
    }
    static new() {
      return T$7.LinearGradientElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("linearGradient"));
    }
    static ['_#new#tearOff']() {
      return svg$.LinearGradientElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.LinearGradientElement.created();
    }
    get [S$3.$x1]() {
      return this.x1;
    }
    get [S$3.$x2]() {
      return this.x2;
    }
    get [S$3.$y1]() {
      return this.y1;
    }
    get [S$3.$y2]() {
      return this.y2;
    }
  };
  (svg$.LinearGradientElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.LinearGradientElement).created.call(this);
    ;
  }).prototype = svg$.LinearGradientElement.prototype;
  dart.addRtiResources(svg$.LinearGradientElement, ["svg|LinearGradientElement"]);
  dart.setStaticMethodSignature(svg$.LinearGradientElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.LinearGradientElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$x1]: T$7.AnimatedLengthN(),
    [S$3.$x2]: T$7.AnimatedLengthN(),
    [S$3.$y1]: T$7.AnimatedLengthN(),
    [S$3.$y2]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.LinearGradientElement))));
  dart.setLibraryUri(svg$.LinearGradientElement, I[176]);
  dart.registerExtension("SVGLinearGradientElement", svg$.LinearGradientElement);
  svg$.MarkerElement = class MarkerElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.MarkerElement.__();
    }
    static new() {
      return T$7.MarkerElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("marker"));
    }
    static ['_#new#tearOff']() {
      return svg$.MarkerElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.MarkerElement.created();
    }
    get [S$3.$markerHeight]() {
      return this.markerHeight;
    }
    get [S$3.$markerUnits]() {
      return this.markerUnits;
    }
    get [S$3.$markerWidth]() {
      return this.markerWidth;
    }
    get [S$3.$orientAngle]() {
      return this.orientAngle;
    }
    get [S$3.$orientType]() {
      return this.orientType;
    }
    get [S$3.$refX]() {
      return this.refX;
    }
    get [S$3.$refY]() {
      return this.refY;
    }
    [S$3.$setOrientToAngle](...args) {
      return this.setOrientToAngle.apply(this, args);
    }
    [S$3.$setOrientToAuto](...args) {
      return this.setOrientToAuto.apply(this, args);
    }
    get [S$3.$preserveAspectRatio]() {
      return this.preserveAspectRatio;
    }
    get [S$3.$viewBox]() {
      return this.viewBox;
    }
  };
  (svg$.MarkerElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.MarkerElement).created.call(this);
    ;
  }).prototype = svg$.MarkerElement.prototype;
  dart.addRtiResources(svg$.MarkerElement, ["svg|MarkerElement", "svg|FitToViewBox", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(svg$.MarkerElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$setOrientToAngle]: T$7.AngleTovoid(),
    [S$3.$setOrientToAuto]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.MarkerElement))));
  dart.setStaticMethodSignature(svg$.MarkerElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.MarkerElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$markerHeight]: T$7.AnimatedLength(),
    [S$3.$markerUnits]: T$7.AnimatedEnumeration(),
    [S$3.$markerWidth]: T$7.AnimatedLength(),
    [S$3.$orientAngle]: T$7.AnimatedAngleN(),
    [S$3.$orientType]: T$7.AnimatedEnumerationN(),
    [S$3.$refX]: T$7.AnimatedLength(),
    [S$3.$refY]: T$7.AnimatedLength(),
    [S$3.$preserveAspectRatio]: T$7.AnimatedPreserveAspectRatioN(),
    [S$3.$viewBox]: T$7.AnimatedRectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.MarkerElement))));
  dart.setLibraryUri(svg$.MarkerElement, I[176]);
  dart.setStaticFieldSignature(svg$.MarkerElement, () => ['SVG_MARKERUNITS_STROKEWIDTH', 'SVG_MARKERUNITS_UNKNOWN', 'SVG_MARKERUNITS_USERSPACEONUSE', 'SVG_MARKER_ORIENT_ANGLE', 'SVG_MARKER_ORIENT_AUTO', 'SVG_MARKER_ORIENT_UNKNOWN']);
  dart.defineLazy(svg$.MarkerElement, {
    /*svg$.MarkerElement.SVG_MARKERUNITS_STROKEWIDTH*/get SVG_MARKERUNITS_STROKEWIDTH() {
      return 2;
    },
    /*svg$.MarkerElement.SVG_MARKERUNITS_UNKNOWN*/get SVG_MARKERUNITS_UNKNOWN() {
      return 0;
    },
    /*svg$.MarkerElement.SVG_MARKERUNITS_USERSPACEONUSE*/get SVG_MARKERUNITS_USERSPACEONUSE() {
      return 1;
    },
    /*svg$.MarkerElement.SVG_MARKER_ORIENT_ANGLE*/get SVG_MARKER_ORIENT_ANGLE() {
      return 2;
    },
    /*svg$.MarkerElement.SVG_MARKER_ORIENT_AUTO*/get SVG_MARKER_ORIENT_AUTO() {
      return 1;
    },
    /*svg$.MarkerElement.SVG_MARKER_ORIENT_UNKNOWN*/get SVG_MARKER_ORIENT_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGMarkerElement", svg$.MarkerElement);
  svg$.MaskElement = class MaskElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.MaskElement.__();
    }
    static new() {
      return T$7.MaskElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("mask"));
    }
    static ['_#new#tearOff']() {
      return svg$.MaskElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.MaskElement.created();
    }
    get [$height]() {
      return this.height;
    }
    get [S$3.$maskContentUnits]() {
      return this.maskContentUnits;
    }
    get [S$3.$maskUnits]() {
      return this.maskUnits;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$3.$requiredExtensions]() {
      return this.requiredExtensions;
    }
    get [S$3.$systemLanguage]() {
      return this.systemLanguage;
    }
  };
  (svg$.MaskElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.MaskElement).created.call(this);
    ;
  }).prototype = svg$.MaskElement.prototype;
  dart.addRtiResources(svg$.MaskElement, ["svg|MaskElement", "svg|Tests", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.MaskElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.MaskElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$7.AnimatedLengthN(),
    [S$3.$maskContentUnits]: T$7.AnimatedEnumerationN(),
    [S$3.$maskUnits]: T$7.AnimatedEnumerationN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN(),
    [S$3.$requiredExtensions]: T$7.StringListN(),
    [S$3.$systemLanguage]: T$7.StringListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.MaskElement))));
  dart.setLibraryUri(svg$.MaskElement, I[176]);
  dart.registerExtension("SVGMaskElement", svg$.MaskElement);
  svg$.Matrix = class Matrix extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.Matrix.__();
    }
    get [S$1.$a]() {
      return this.a;
    }
    set [S$1.$a](value) {
      this.a = value;
    }
    get [S$1.$b]() {
      return this.b;
    }
    set [S$1.$b](value) {
      this.b = value;
    }
    get [S$1.$c]() {
      return this.c;
    }
    set [S$1.$c](value) {
      this.c = value;
    }
    get [S$1.$d]() {
      return this.d;
    }
    set [S$1.$d](value) {
      this.d = value;
    }
    get [S$1.$e]() {
      return this.e;
    }
    set [S$1.$e](value) {
      this.e = value;
    }
    get [S$1.$f]() {
      return this.f;
    }
    set [S$1.$f](value) {
      this.f = value;
    }
    [S$1.$flipX](...args) {
      return this.flipX.apply(this, args);
    }
    [S$1.$flipY](...args) {
      return this.flipY.apply(this, args);
    }
    [S$1.$inverse](...args) {
      return this.inverse.apply(this, args);
    }
    [S$1.$multiply](...args) {
      return this.multiply.apply(this, args);
    }
    [S$.$rotate](...args) {
      return this.rotate.apply(this, args);
    }
    [S$1.$rotateFromVector](...args) {
      return this.rotateFromVector.apply(this, args);
    }
    [S$.$scale](...args) {
      return this.scale.apply(this, args);
    }
    [S$3.$scaleNonUniform](...args) {
      return this.scaleNonUniform.apply(this, args);
    }
    [S$1.$skewX](...args) {
      return this.skewX.apply(this, args);
    }
    [S$1.$skewY](...args) {
      return this.skewY.apply(this, args);
    }
    [S.$translate](...args) {
      return this.translate.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.Matrix, ["svg|Matrix"]);
  dart.setMethodSignature(svg$.Matrix, () => dart.global.Object.setPrototypeOf({
    [S$1.$flipX]: T$7.VoidToMatrix(),
    [S$1.$flipY]: T$7.VoidToMatrix(),
    [S$1.$inverse]: T$7.VoidToMatrix(),
    [S$1.$multiply]: T$7.MatrixToMatrix(),
    [S$.$rotate]: T$7.numToMatrix(),
    [S$1.$rotateFromVector]: T$7.numAndnumToMatrix(),
    [S$.$scale]: T$7.numToMatrix(),
    [S$3.$scaleNonUniform]: T$7.numAndnumToMatrix(),
    [S$1.$skewX]: T$7.numToMatrix(),
    [S$1.$skewY]: T$7.numToMatrix(),
    [S.$translate]: T$7.numAndnumToMatrix()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.Matrix))));
  dart.setStaticMethodSignature(svg$.Matrix, () => ['__']);
  dart.setGetterSignature(svg$.Matrix, () => dart.global.Object.setPrototypeOf({
    [S$1.$a]: T$3.numN(),
    [S$1.$b]: T$3.numN(),
    [S$1.$c]: T$3.numN(),
    [S$1.$d]: T$3.numN(),
    [S$1.$e]: T$3.numN(),
    [S$1.$f]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.Matrix))));
  dart.setSetterSignature(svg$.Matrix, () => dart.global.Object.setPrototypeOf({
    [S$1.$a]: T$3.numN(),
    [S$1.$b]: T$3.numN(),
    [S$1.$c]: T$3.numN(),
    [S$1.$d]: T$3.numN(),
    [S$1.$e]: T$3.numN(),
    [S$1.$f]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.Matrix))));
  dart.setLibraryUri(svg$.Matrix, I[176]);
  dart.registerExtension("SVGMatrix", svg$.Matrix);
  svg$.MetadataElement = class MetadataElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.MetadataElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.MetadataElement.created();
    }
  };
  (svg$.MetadataElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.MetadataElement).created.call(this);
    ;
  }).prototype = svg$.MetadataElement.prototype;
  dart.addRtiResources(svg$.MetadataElement, ["svg|MetadataElement"]);
  dart.setStaticMethodSignature(svg$.MetadataElement, () => ['__']);
  dart.setLibraryUri(svg$.MetadataElement, I[176]);
  dart.registerExtension("SVGMetadataElement", svg$.MetadataElement);
  svg$.Number = class Number extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.Number.__();
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
  };
  dart.addRtiResources(svg$.Number, ["svg|Number"]);
  dart.setStaticMethodSignature(svg$.Number, () => ['__']);
  dart.setGetterSignature(svg$.Number, () => dart.global.Object.setPrototypeOf({[S.$value]: T$3.numN()}, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.Number))));
  dart.setSetterSignature(svg$.Number, () => dart.global.Object.setPrototypeOf({[S.$value]: T$3.numN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.Number))));
  dart.setLibraryUri(svg$.Number, I[176]);
  dart.registerExtension("SVGNumber", svg$.Number);
  const JavaScriptObject_ListBase$36$14 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$14.new = function() {
    G$.ListBaseOfNumber().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$14).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$14.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$14, G$.ListBaseOfNumber());
  const JavaScriptObject_ImmutableListMixin$36$14 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$14 {};
  (JavaScriptObject_ImmutableListMixin$36$14.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$14).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$14.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$14, G$.ImmutableListMixinOfNumber());
  svg$.NumberList = class NumberList extends JavaScriptObject_ImmutableListMixin$36$14 {
    static ['_#_#tearOff']() {
      return svg$.NumberList.__();
    }
    get [$length]() {
      return this.length;
    }
    get [S$3.$numberOfItems]() {
      return this.numberOfItems;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[175], 2381, 26, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this.getItem(index);
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[175], 2387, 25, "index");
      T$7.Number()[_as](value);
      if (value == null) dart.nullFailed(I[175], 2387, 39, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](newLength) {
      if (newLength == null) dart.nullFailed(I[175], 2393, 18, "newLength");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[175], 2421, 24, "index");
      return this[$_get](index);
    }
    [S$3.__setter__$1](...args) {
      return this.__setter__.apply(this, args);
    }
    [S$3.$appendItem](...args) {
      return this.appendItem.apply(this, args);
    }
    [$clear](...args) {
      return this.clear.apply(this, args);
    }
    [S$3.$getItem](...args) {
      return this.getItem.apply(this, args);
    }
    [S$3.$initialize](...args) {
      return this.initialize.apply(this, args);
    }
    [S$3.$insertItemBefore](...args) {
      return this.insertItemBefore.apply(this, args);
    }
    [S$3.$removeItem](...args) {
      return this.removeItem.apply(this, args);
    }
    [S$3.$replaceItem](...args) {
      return this.replaceItem.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.NumberList, ["svg|NumberList", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(svg$.NumberList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$7.intToNumber(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$3.__setter__$1]: T$7.intAndNumberTovoid(),
    [S$3.$appendItem]: T$7.NumberToNumber(),
    [S$3.$getItem]: T$7.intToNumber(),
    [S$3.$initialize]: T$7.NumberToNumber(),
    [S$3.$insertItemBefore]: T$7.NumberAndintToNumber(),
    [S$3.$removeItem]: T$7.intToNumber(),
    [S$3.$replaceItem]: T$7.NumberAndintToNumber()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.NumberList))));
  dart.setStaticMethodSignature(svg$.NumberList, () => ['__']);
  dart.setGetterSignature(svg$.NumberList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.int(),
    [S$3.$numberOfItems]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.NumberList))));
  dart.setSetterSignature(svg$.NumberList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.NumberList))));
  dart.setLibraryUri(svg$.NumberList, I[176]);
  dart.registerExtension("SVGNumberList", svg$.NumberList);
  svg$.PathElement = class PathElement extends svg$.GeometryElement {
    static ['_#_#tearOff']() {
      return svg$.PathElement.__();
    }
    static new() {
      return T$7.PathElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("path"));
    }
    static ['_#new#tearOff']() {
      return svg$.PathElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.PathElement.created();
    }
  };
  (svg$.PathElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.PathElement).created.call(this);
    ;
  }).prototype = svg$.PathElement.prototype;
  dart.addRtiResources(svg$.PathElement, ["svg|PathElement"]);
  dart.setStaticMethodSignature(svg$.PathElement, () => ['__', 'new']);
  dart.setLibraryUri(svg$.PathElement, I[176]);
  dart.registerExtension("SVGPathElement", svg$.PathElement);
  svg$.PatternElement = class PatternElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.PatternElement.__();
    }
    static new() {
      return T$7.PatternElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("pattern"));
    }
    static ['_#new#tearOff']() {
      return svg$.PatternElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.PatternElement.created();
    }
    get [$height]() {
      return this.height;
    }
    get [S$3.$patternContentUnits]() {
      return this.patternContentUnits;
    }
    get [S$3.$patternTransform]() {
      return this.patternTransform;
    }
    get [S$3.$patternUnits]() {
      return this.patternUnits;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$3.$preserveAspectRatio]() {
      return this.preserveAspectRatio;
    }
    get [S$3.$viewBox]() {
      return this.viewBox;
    }
    get [S$3.$requiredExtensions]() {
      return this.requiredExtensions;
    }
    get [S$3.$systemLanguage]() {
      return this.systemLanguage;
    }
    get [S$.$href]() {
      return this.href;
    }
  };
  (svg$.PatternElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.PatternElement).created.call(this);
    ;
  }).prototype = svg$.PatternElement.prototype;
  dart.addRtiResources(svg$.PatternElement, ["svg|PatternElement", "svg|FitToViewBox", "svg|UriReference", "svg|Tests", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.PatternElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.PatternElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$7.AnimatedLengthN(),
    [S$3.$patternContentUnits]: T$7.AnimatedEnumerationN(),
    [S$3.$patternTransform]: T$7.AnimatedTransformListN(),
    [S$3.$patternUnits]: T$7.AnimatedEnumerationN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN(),
    [S$3.$preserveAspectRatio]: T$7.AnimatedPreserveAspectRatioN(),
    [S$3.$viewBox]: T$7.AnimatedRectN(),
    [S$3.$requiredExtensions]: T$7.StringListN(),
    [S$3.$systemLanguage]: T$7.StringListN(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.PatternElement))));
  dart.setLibraryUri(svg$.PatternElement, I[176]);
  dart.registerExtension("SVGPatternElement", svg$.PatternElement);
  svg$.Point = class Point extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.Point.__();
    }
    get [S$.$x]() {
      return this.x;
    }
    set [S$.$x](value) {
      this.x = value;
    }
    get [S$.$y]() {
      return this.y;
    }
    set [S$.$y](value) {
      this.y = value;
    }
    [S$1.$matrixTransform](...args) {
      return this.matrixTransform.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.Point, ["svg|Point"]);
  dart.setMethodSignature(svg$.Point, () => dart.global.Object.setPrototypeOf({[S$1.$matrixTransform]: T$7.MatrixToPoint()}, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.Point))));
  dart.setStaticMethodSignature(svg$.Point, () => ['__']);
  dart.setGetterSignature(svg$.Point, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.Point))));
  dart.setSetterSignature(svg$.Point, () => dart.global.Object.setPrototypeOf({
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.Point))));
  dart.setLibraryUri(svg$.Point, I[176]);
  dart.registerExtension("SVGPoint", svg$.Point);
  svg$.PointList = class PointList extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.PointList.__();
    }
    get [$length]() {
      return this.length;
    }
    get [S$3.$numberOfItems]() {
      return this.numberOfItems;
    }
    [S$3.__setter__$1](...args) {
      return this.__setter__.apply(this, args);
    }
    [S$3.$appendItem](...args) {
      return this.appendItem.apply(this, args);
    }
    [$clear](...args) {
      return this.clear.apply(this, args);
    }
    [S$3.$getItem](...args) {
      return this.getItem.apply(this, args);
    }
    [S$3.$initialize](...args) {
      return this.initialize.apply(this, args);
    }
    [S$3.$insertItemBefore](...args) {
      return this.insertItemBefore.apply(this, args);
    }
    [S$3.$removeItem](...args) {
      return this.removeItem.apply(this, args);
    }
    [S$3.$replaceItem](...args) {
      return this.replaceItem.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.PointList, ["svg|PointList"]);
  dart.setMethodSignature(svg$.PointList, () => dart.global.Object.setPrototypeOf({
    [S$3.__setter__$1]: T$7.intAndPointTovoid(),
    [S$3.$appendItem]: T$7.PointToPoint(),
    [$clear]: T$.VoidTovoid(),
    [S$3.$getItem]: T$7.intToPoint(),
    [S$3.$initialize]: T$7.PointToPoint(),
    [S$3.$insertItemBefore]: T$7.PointAndintToPoint(),
    [S$3.$removeItem]: T$7.intToPoint(),
    [S$3.$replaceItem]: T$7.PointAndintToPoint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.PointList))));
  dart.setStaticMethodSignature(svg$.PointList, () => ['__']);
  dart.setGetterSignature(svg$.PointList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.intN(),
    [S$3.$numberOfItems]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.PointList))));
  dart.setLibraryUri(svg$.PointList, I[176]);
  dart.registerExtension("SVGPointList", svg$.PointList);
  svg$.PolygonElement = class PolygonElement extends svg$.GeometryElement {
    static ['_#_#tearOff']() {
      return svg$.PolygonElement.__();
    }
    static new() {
      return T$7.PolygonElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("polygon"));
    }
    static ['_#new#tearOff']() {
      return svg$.PolygonElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.PolygonElement.created();
    }
    get [S$3.$animatedPoints]() {
      return this.animatedPoints;
    }
    get [S$3.$points]() {
      return this.points;
    }
  };
  (svg$.PolygonElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.PolygonElement).created.call(this);
    ;
  }).prototype = svg$.PolygonElement.prototype;
  dart.addRtiResources(svg$.PolygonElement, ["svg|PolygonElement"]);
  dart.setStaticMethodSignature(svg$.PolygonElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.PolygonElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$animatedPoints]: T$7.PointListN(),
    [S$3.$points]: T$7.PointList()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.PolygonElement))));
  dart.setLibraryUri(svg$.PolygonElement, I[176]);
  dart.registerExtension("SVGPolygonElement", svg$.PolygonElement);
  svg$.PolylineElement = class PolylineElement extends svg$.GeometryElement {
    static ['_#_#tearOff']() {
      return svg$.PolylineElement.__();
    }
    static new() {
      return T$7.PolylineElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("polyline"));
    }
    static ['_#new#tearOff']() {
      return svg$.PolylineElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.PolylineElement.created();
    }
    get [S$3.$animatedPoints]() {
      return this.animatedPoints;
    }
    get [S$3.$points]() {
      return this.points;
    }
  };
  (svg$.PolylineElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.PolylineElement).created.call(this);
    ;
  }).prototype = svg$.PolylineElement.prototype;
  dart.addRtiResources(svg$.PolylineElement, ["svg|PolylineElement"]);
  dart.setStaticMethodSignature(svg$.PolylineElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.PolylineElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$animatedPoints]: T$7.PointListN(),
    [S$3.$points]: T$7.PointList()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.PolylineElement))));
  dart.setLibraryUri(svg$.PolylineElement, I[176]);
  dart.registerExtension("SVGPolylineElement", svg$.PolylineElement);
  svg$.PreserveAspectRatio = class PreserveAspectRatio extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.PreserveAspectRatio.__();
    }
    get [S$3.$align]() {
      return this.align;
    }
    set [S$3.$align](value) {
      this.align = value;
    }
    get [S$3.$meetOrSlice]() {
      return this.meetOrSlice;
    }
    set [S$3.$meetOrSlice](value) {
      this.meetOrSlice = value;
    }
  };
  dart.addRtiResources(svg$.PreserveAspectRatio, ["svg|PreserveAspectRatio"]);
  dart.setStaticMethodSignature(svg$.PreserveAspectRatio, () => ['__']);
  dart.setGetterSignature(svg$.PreserveAspectRatio, () => dart.global.Object.setPrototypeOf({
    [S$3.$align]: T$.intN(),
    [S$3.$meetOrSlice]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.PreserveAspectRatio))));
  dart.setSetterSignature(svg$.PreserveAspectRatio, () => dart.global.Object.setPrototypeOf({
    [S$3.$align]: T$.intN(),
    [S$3.$meetOrSlice]: T$.intN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.PreserveAspectRatio))));
  dart.setLibraryUri(svg$.PreserveAspectRatio, I[176]);
  dart.setStaticFieldSignature(svg$.PreserveAspectRatio, () => ['SVG_MEETORSLICE_MEET', 'SVG_MEETORSLICE_SLICE', 'SVG_MEETORSLICE_UNKNOWN', 'SVG_PRESERVEASPECTRATIO_NONE', 'SVG_PRESERVEASPECTRATIO_UNKNOWN', 'SVG_PRESERVEASPECTRATIO_XMAXYMAX', 'SVG_PRESERVEASPECTRATIO_XMAXYMID', 'SVG_PRESERVEASPECTRATIO_XMAXYMIN', 'SVG_PRESERVEASPECTRATIO_XMIDYMAX', 'SVG_PRESERVEASPECTRATIO_XMIDYMID', 'SVG_PRESERVEASPECTRATIO_XMIDYMIN', 'SVG_PRESERVEASPECTRATIO_XMINYMAX', 'SVG_PRESERVEASPECTRATIO_XMINYMID', 'SVG_PRESERVEASPECTRATIO_XMINYMIN']);
  dart.defineLazy(svg$.PreserveAspectRatio, {
    /*svg$.PreserveAspectRatio.SVG_MEETORSLICE_MEET*/get SVG_MEETORSLICE_MEET() {
      return 1;
    },
    /*svg$.PreserveAspectRatio.SVG_MEETORSLICE_SLICE*/get SVG_MEETORSLICE_SLICE() {
      return 2;
    },
    /*svg$.PreserveAspectRatio.SVG_MEETORSLICE_UNKNOWN*/get SVG_MEETORSLICE_UNKNOWN() {
      return 0;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_NONE*/get SVG_PRESERVEASPECTRATIO_NONE() {
      return 1;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_UNKNOWN*/get SVG_PRESERVEASPECTRATIO_UNKNOWN() {
      return 0;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMAXYMAX*/get SVG_PRESERVEASPECTRATIO_XMAXYMAX() {
      return 10;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMAXYMID*/get SVG_PRESERVEASPECTRATIO_XMAXYMID() {
      return 7;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMAXYMIN*/get SVG_PRESERVEASPECTRATIO_XMAXYMIN() {
      return 4;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMIDYMAX*/get SVG_PRESERVEASPECTRATIO_XMIDYMAX() {
      return 9;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMIDYMID*/get SVG_PRESERVEASPECTRATIO_XMIDYMID() {
      return 6;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMIDYMIN*/get SVG_PRESERVEASPECTRATIO_XMIDYMIN() {
      return 3;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMINYMAX*/get SVG_PRESERVEASPECTRATIO_XMINYMAX() {
      return 8;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMINYMID*/get SVG_PRESERVEASPECTRATIO_XMINYMID() {
      return 5;
    },
    /*svg$.PreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMINYMIN*/get SVG_PRESERVEASPECTRATIO_XMINYMIN() {
      return 2;
    }
  }, false);
  dart.registerExtension("SVGPreserveAspectRatio", svg$.PreserveAspectRatio);
  svg$.RadialGradientElement = class RadialGradientElement extends svg$._GradientElement {
    static ['_#_#tearOff']() {
      return svg$.RadialGradientElement.__();
    }
    static new() {
      return T$7.RadialGradientElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("radialGradient"));
    }
    static ['_#new#tearOff']() {
      return svg$.RadialGradientElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.RadialGradientElement.created();
    }
    get [S$3.$cx]() {
      return this.cx;
    }
    get [S$3.$cy]() {
      return this.cy;
    }
    get [S$3.$fr]() {
      return this.fr;
    }
    get [S$3.$fx]() {
      return this.fx;
    }
    get [S$3.$fy]() {
      return this.fy;
    }
    get [S$3.$r]() {
      return this.r;
    }
  };
  (svg$.RadialGradientElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.RadialGradientElement).created.call(this);
    ;
  }).prototype = svg$.RadialGradientElement.prototype;
  dart.addRtiResources(svg$.RadialGradientElement, ["svg|RadialGradientElement"]);
  dart.setStaticMethodSignature(svg$.RadialGradientElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.RadialGradientElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$cx]: T$7.AnimatedLengthN(),
    [S$3.$cy]: T$7.AnimatedLengthN(),
    [S$3.$fr]: T$7.AnimatedLengthN(),
    [S$3.$fx]: T$7.AnimatedLengthN(),
    [S$3.$fy]: T$7.AnimatedLengthN(),
    [S$3.$r]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.RadialGradientElement))));
  dart.setLibraryUri(svg$.RadialGradientElement, I[176]);
  dart.registerExtension("SVGRadialGradientElement", svg$.RadialGradientElement);
  svg$.Rect = class Rect extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.Rect.__();
    }
    get [$height]() {
      return this.height;
    }
    set [$height](value) {
      this.height = value;
    }
    get [$width]() {
      return this.width;
    }
    set [$width](value) {
      this.width = value;
    }
    get [S$.$x]() {
      return this.x;
    }
    set [S$.$x](value) {
      this.x = value;
    }
    get [S$.$y]() {
      return this.y;
    }
    set [S$.$y](value) {
      this.y = value;
    }
  };
  dart.addRtiResources(svg$.Rect, ["svg|Rect"]);
  dart.setStaticMethodSignature(svg$.Rect, () => ['__']);
  dart.setGetterSignature(svg$.Rect, () => dart.global.Object.setPrototypeOf({
    [$height]: T$3.numN(),
    [$width]: T$3.numN(),
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.Rect))));
  dart.setSetterSignature(svg$.Rect, () => dart.global.Object.setPrototypeOf({
    [$height]: T$3.numN(),
    [$width]: T$3.numN(),
    [S$.$x]: T$3.numN(),
    [S$.$y]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.Rect))));
  dart.setLibraryUri(svg$.Rect, I[176]);
  dart.registerExtension("SVGRect", svg$.Rect);
  svg$.RectElement = class RectElement extends svg$.GeometryElement {
    static ['_#_#tearOff']() {
      return svg$.RectElement.__();
    }
    static new() {
      return T$7.RectElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("rect"));
    }
    static ['_#new#tearOff']() {
      return svg$.RectElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.RectElement.created();
    }
    get [$height]() {
      return this.height;
    }
    get [S$3.$rx]() {
      return this.rx;
    }
    get [S$3.$ry]() {
      return this.ry;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.RectElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.RectElement).created.call(this);
    ;
  }).prototype = svg$.RectElement.prototype;
  dart.addRtiResources(svg$.RectElement, ["svg|RectElement"]);
  dart.setStaticMethodSignature(svg$.RectElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.RectElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$7.AnimatedLengthN(),
    [S$3.$rx]: T$7.AnimatedLengthN(),
    [S$3.$ry]: T$7.AnimatedLengthN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.RectElement))));
  dart.setLibraryUri(svg$.RectElement, I[176]);
  dart.registerExtension("SVGRectElement", svg$.RectElement);
  svg$.ScriptElement = class ScriptElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.ScriptElement.__();
    }
    static new() {
      return T$7.ScriptElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("script"));
    }
    static ['_#new#tearOff']() {
      return svg$.ScriptElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.ScriptElement.created();
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
    get [S$.$href]() {
      return this.href;
    }
  };
  (svg$.ScriptElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.ScriptElement).created.call(this);
    ;
  }).prototype = svg$.ScriptElement.prototype;
  dart.addRtiResources(svg$.ScriptElement, ["svg|ScriptElement", "svg|UriReference", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.ScriptElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.ScriptElement, () => dart.global.Object.setPrototypeOf({
    [S.$type]: T$.StringN(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.ScriptElement))));
  dart.setSetterSignature(svg$.ScriptElement, () => dart.global.Object.setPrototypeOf({[S.$type]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.ScriptElement))));
  dart.setLibraryUri(svg$.ScriptElement, I[176]);
  dart.registerExtension("SVGScriptElement", svg$.ScriptElement);
  svg$.SetElement = class SetElement extends svg$.AnimationElement {
    static ['_#_#tearOff']() {
      return svg$.SetElement.__();
    }
    static new() {
      return T$7.SetElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("set"));
    }
    static ['_#new#tearOff']() {
      return svg$.SetElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.SetElement.created();
    }
    static get supported() {
      return dart.test(svg$.SvgElement.isTagSupported("set")) && T$7.SetElement()[_is](svg$.SvgElement.tag("set"));
    }
  };
  (svg$.SetElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.SetElement).created.call(this);
    ;
  }).prototype = svg$.SetElement.prototype;
  dart.addRtiResources(svg$.SetElement, ["svg|SetElement"]);
  dart.setStaticMethodSignature(svg$.SetElement, () => ['__', 'new']);
  dart.setStaticGetterSignature(svg$.SetElement, () => ['supported']);
  dart.setLibraryUri(svg$.SetElement, I[176]);
  dart.registerExtension("SVGSetElement", svg$.SetElement);
  svg$.StopElement = class StopElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.StopElement.__();
    }
    static new() {
      return T$7.StopElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("stop"));
    }
    static ['_#new#tearOff']() {
      return svg$.StopElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.StopElement.created();
    }
    get [S$3.$gradientOffset]() {
      return this.offset;
    }
  };
  (svg$.StopElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.StopElement).created.call(this);
    ;
  }).prototype = svg$.StopElement.prototype;
  dart.addRtiResources(svg$.StopElement, ["svg|StopElement"]);
  dart.setStaticMethodSignature(svg$.StopElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.StopElement, () => dart.global.Object.setPrototypeOf({[S$3.$gradientOffset]: T$7.AnimatedNumber()}, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.StopElement))));
  dart.setLibraryUri(svg$.StopElement, I[176]);
  dart.registerExtension("SVGStopElement", svg$.StopElement);
  const JavaScriptObject_ListBase$36$15 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$15.new = function() {
    G$.ListBaseOfString().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$15).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$15.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$15, G$.ListBaseOfString());
  const JavaScriptObject_ImmutableListMixin$36$15 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$15 {};
  (JavaScriptObject_ImmutableListMixin$36$15.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$15).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$15.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$15, G$.ImmutableListMixinOfString());
  svg$.StringList = class StringList extends JavaScriptObject_ImmutableListMixin$36$15 {
    static ['_#_#tearOff']() {
      return svg$.StringList.__();
    }
    get [$length]() {
      return this.length;
    }
    get [S$3.$numberOfItems]() {
      return this.numberOfItems;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[175], 2864, 26, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this.getItem(index);
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[175], 2870, 25, "index");
      T$.String()[_as](value);
      if (value == null) dart.nullFailed(I[175], 2870, 39, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](newLength) {
      if (newLength == null) dart.nullFailed(I[175], 2876, 18, "newLength");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[175], 2904, 24, "index");
      return this[$_get](index);
    }
    [S$3.__setter__$1](...args) {
      return this.__setter__.apply(this, args);
    }
    [S$3.$appendItem](...args) {
      return this.appendItem.apply(this, args);
    }
    [$clear](...args) {
      return this.clear.apply(this, args);
    }
    [S$3.$getItem](...args) {
      return this.getItem.apply(this, args);
    }
    [S$3.$initialize](...args) {
      return this.initialize.apply(this, args);
    }
    [S$3.$insertItemBefore](...args) {
      return this.insertItemBefore.apply(this, args);
    }
    [S$3.$removeItem](...args) {
      return this.removeItem.apply(this, args);
    }
    [S$3.$replaceItem](...args) {
      return this.replaceItem.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.StringList, ["svg|StringList", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(svg$.StringList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$.intToString(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$3.__setter__$1]: T$4.intAndStringTovoid(),
    [S$3.$appendItem]: T$.StringToString(),
    [S$3.$getItem]: T$.intToString(),
    [S$3.$initialize]: T$.StringToString(),
    [S$3.$insertItemBefore]: T$7.StringAndintToString(),
    [S$3.$removeItem]: T$.intToString(),
    [S$3.$replaceItem]: T$7.StringAndintToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.StringList))));
  dart.setStaticMethodSignature(svg$.StringList, () => ['__']);
  dart.setGetterSignature(svg$.StringList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.int(),
    [S$3.$numberOfItems]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.StringList))));
  dart.setSetterSignature(svg$.StringList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.StringList))));
  dart.setLibraryUri(svg$.StringList, I[176]);
  dart.registerExtension("SVGStringList", svg$.StringList);
  svg$.StyleElement = class StyleElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.StyleElement.__();
    }
    static new() {
      return T$7.StyleElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("style"));
    }
    static ['_#new#tearOff']() {
      return svg$.StyleElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.StyleElement.created();
    }
    get [S$.$disabled]() {
      return this.disabled;
    }
    set [S$.$disabled](value) {
      this.disabled = value;
    }
    get [S$.$media]() {
      return this.media;
    }
    set [S$.$media](value) {
      this.media = value;
    }
    get [S$1.$sheet]() {
      return this.sheet;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
  };
  (svg$.StyleElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.StyleElement).created.call(this);
    ;
  }).prototype = svg$.StyleElement.prototype;
  dart.addRtiResources(svg$.StyleElement, ["svg|StyleElement"]);
  dart.setStaticMethodSignature(svg$.StyleElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.StyleElement, () => dart.global.Object.setPrototypeOf({
    [S$.$disabled]: T$.boolN(),
    [S$.$media]: T$.StringN(),
    [S$1.$sheet]: T$4.StyleSheetN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.StyleElement))));
  dart.setSetterSignature(svg$.StyleElement, () => dart.global.Object.setPrototypeOf({
    [S$.$disabled]: T$.boolN(),
    [S$.$media]: T$.StringN(),
    [S.$type]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.StyleElement))));
  dart.setLibraryUri(svg$.StyleElement, I[176]);
  dart.registerExtension("SVGStyleElement", svg$.StyleElement);
  svg$.AttributeClassSet = class AttributeClassSet extends html_common.CssClassSetImpl {
    static ['_#new#tearOff'](_element) {
      if (_element == null) dart.nullFailed(I[175], 2968, 26, "_element");
      return new svg$.AttributeClassSet.new(_element);
    }
    readClasses() {
      let classname = this[S$3._element$1][S.$attributes][$_get]("class");
      if (T$7.AnimatedString()[_is](classname)) {
        classname = T$7.AnimatedString()[_as](classname).baseVal;
      }
      let s = new (G$._IdentityHashSetOfString()).new();
      if (classname == null) {
        return s;
      }
      for (let name of classname[$split](" ")) {
        let trimmed = name[$trim]();
        if (!trimmed[$isEmpty]) {
          s.add(trimmed);
        }
      }
      return s;
    }
    writeClasses(s) {
      if (s == null) dart.nullFailed(I[175], 2989, 25, "s");
      this[S$3._element$1][S.$setAttribute]("class", s[$join](" "));
    }
  };
  (svg$.AttributeClassSet.new = function(_element) {
    if (_element == null) dart.nullFailed(I[175], 2968, 26, "_element");
    this[S$3._element$1] = _element;
    this.$ti = this.$ti || T$7.AttributeClassSet();
    dart.global.Object.getPrototypeOf(svg$.AttributeClassSet).new.call(this);
    ;
  }).prototype = svg$.AttributeClassSet.prototype;
  dart.addRtiResources(svg$.AttributeClassSet, ["svg|AttributeClassSet"]);
  dart.setMethodSignature(svg$.AttributeClassSet, () => dart.global.Object.setPrototypeOf({
    readClasses: T$6.VoidToSetOfString(),
    writeClasses: T$7.SetTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.AttributeClassSet))));
  dart.setLibraryUri(svg$.AttributeClassSet, I[176]);
  dart.setFieldSignature(svg$.AttributeClassSet, () => dart.global.Object.setPrototypeOf({[S$3._element$1]: {type: T$3.Element(), isConst: false, isFinal: true, libraryUri: I[167]}}, dart.getFields(dart.global.Object.getPrototypeOf(svg$.AttributeClassSet))));
  svg$.SvgSvgElement = class SvgSvgElement extends svg$.GraphicsElement {
    static ['_#new#tearOff']() {
      return svg$.SvgSvgElement.new();
    }
    static new() {
      let el = svg$.SvgElement.tag("svg");
      el[S.$attributes][$_set]("version", "1.1");
      return T$7.SvgSvgElement()[_as](el);
    }
    static ['_#_#tearOff']() {
      return svg$.SvgSvgElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.SvgSvgElement.created();
    }
    get [S$3.$currentScale]() {
      return this.currentScale;
    }
    set [S$3.$currentScale](value) {
      this.currentScale = value;
    }
    get [S$3.$currentTranslate]() {
      return this.currentTranslate;
    }
    get [$height]() {
      return this.height;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    [S$3.$animationsPaused](...args) {
      return this.animationsPaused.apply(this, args);
    }
    [S$3.$checkEnclosure](...args) {
      return this.checkEnclosure.apply(this, args);
    }
    [S$3.$checkIntersection](...args) {
      return this.checkIntersection.apply(this, args);
    }
    [S$3.$createSvgAngle](...args) {
      return this.createSVGAngle.apply(this, args);
    }
    [S$3.$createSvgLength](...args) {
      return this.createSVGLength.apply(this, args);
    }
    [S$3.$createSvgMatrix](...args) {
      return this.createSVGMatrix.apply(this, args);
    }
    [S$3.$createSvgNumber](...args) {
      return this.createSVGNumber.apply(this, args);
    }
    [S$3.$createSvgPoint](...args) {
      return this.createSVGPoint.apply(this, args);
    }
    [S$3.$createSvgRect](...args) {
      return this.createSVGRect.apply(this, args);
    }
    [S$3.$createSvgTransform](...args) {
      return this.createSVGTransform.apply(this, args);
    }
    [S$3.$createSvgTransformFromMatrix](...args) {
      return this.createSVGTransformFromMatrix.apply(this, args);
    }
    [S$3.$deselectAll](...args) {
      return this.deselectAll.apply(this, args);
    }
    [S$3.$forceRedraw](...args) {
      return this.forceRedraw.apply(this, args);
    }
    [S$3.$getCurrentTime](...args) {
      return this.getCurrentTime.apply(this, args);
    }
    [S$1.$getElementById](...args) {
      return this.getElementById.apply(this, args);
    }
    [S$3.$getEnclosureList](...args) {
      return this.getEnclosureList.apply(this, args);
    }
    [S$3.$getIntersectionList](...args) {
      return this.getIntersectionList.apply(this, args);
    }
    [S$3.$pauseAnimations](...args) {
      return this.pauseAnimations.apply(this, args);
    }
    [S$3.$setCurrentTime](...args) {
      return this.setCurrentTime.apply(this, args);
    }
    [S$3.$suspendRedraw](...args) {
      return this.suspendRedraw.apply(this, args);
    }
    [S$3.$unpauseAnimations](...args) {
      return this.unpauseAnimations.apply(this, args);
    }
    [S$3.$unsuspendRedraw](...args) {
      return this.unsuspendRedraw.apply(this, args);
    }
    [S$3.$unsuspendRedrawAll](...args) {
      return this.unsuspendRedrawAll.apply(this, args);
    }
    get [S$3.$preserveAspectRatio]() {
      return this.preserveAspectRatio;
    }
    get [S$3.$viewBox]() {
      return this.viewBox;
    }
    get [S$3.$zoomAndPan]() {
      return this.zoomAndPan;
    }
    set [S$3.$zoomAndPan](value) {
      this.zoomAndPan = value;
    }
  };
  (svg$.SvgSvgElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.SvgSvgElement).created.call(this);
    ;
  }).prototype = svg$.SvgSvgElement.prototype;
  dart.addRtiResources(svg$.SvgSvgElement, ["svg|SvgSvgElement", "svg|FitToViewBox", "svg|ZoomAndPan", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(svg$.SvgSvgElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$animationsPaused]: T$.VoidTobool(),
    [S$3.$checkEnclosure]: T$7.SvgElementAndRectTobool(),
    [S$3.$checkIntersection]: T$7.SvgElementAndRectTobool(),
    [S$3.$createSvgAngle]: T$7.VoidToAngle(),
    [S$3.$createSvgLength]: T$7.VoidToLength(),
    [S$3.$createSvgMatrix]: T$7.VoidToMatrix(),
    [S$3.$createSvgNumber]: T$7.VoidToNumber(),
    [S$3.$createSvgPoint]: T$7.VoidToPoint(),
    [S$3.$createSvgRect]: T$7.VoidToRect(),
    [S$3.$createSvgTransform]: T$7.VoidToTransform(),
    [S$3.$createSvgTransformFromMatrix]: T$7.MatrixToTransform(),
    [S$3.$deselectAll]: T$.VoidTovoid(),
    [S$3.$forceRedraw]: T$.VoidTovoid(),
    [S$3.$getCurrentTime]: T$.VoidTodouble(),
    [S$1.$getElementById]: T$7.StringToElement(),
    [S$3.$getEnclosureList]: T$7.RectAndSvgElementNToListOfNode(),
    [S$3.$getIntersectionList]: T$7.RectAndSvgElementNToListOfNode(),
    [S$3.$pauseAnimations]: T$.VoidTovoid(),
    [S$3.$setCurrentTime]: T$2.numTovoid(),
    [S$3.$suspendRedraw]: T$.intToint(),
    [S$3.$unpauseAnimations]: T$.VoidTovoid(),
    [S$3.$unsuspendRedraw]: T$.intTovoid(),
    [S$3.$unsuspendRedrawAll]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.SvgSvgElement))));
  dart.setStaticMethodSignature(svg$.SvgSvgElement, () => ['new', '__']);
  dart.setGetterSignature(svg$.SvgSvgElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$currentScale]: T$3.numN(),
    [S$3.$currentTranslate]: T$7.PointN(),
    [$height]: T$7.AnimatedLengthN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN(),
    [S$3.$preserveAspectRatio]: T$7.AnimatedPreserveAspectRatioN(),
    [S$3.$viewBox]: T$7.AnimatedRectN(),
    [S$3.$zoomAndPan]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.SvgSvgElement))));
  dart.setSetterSignature(svg$.SvgSvgElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$currentScale]: T$3.numN(),
    [S$3.$zoomAndPan]: T$.intN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.SvgSvgElement))));
  dart.setLibraryUri(svg$.SvgSvgElement, I[176]);
  dart.registerExtension("SVGSVGElement", svg$.SvgSvgElement);
  svg$.SwitchElement = class SwitchElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.SwitchElement.__();
    }
    static new() {
      return T$7.SwitchElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("switch"));
    }
    static ['_#new#tearOff']() {
      return svg$.SwitchElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.SwitchElement.created();
    }
  };
  (svg$.SwitchElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.SwitchElement).created.call(this);
    ;
  }).prototype = svg$.SwitchElement.prototype;
  dart.addRtiResources(svg$.SwitchElement, ["svg|SwitchElement"]);
  dart.setStaticMethodSignature(svg$.SwitchElement, () => ['__', 'new']);
  dart.setLibraryUri(svg$.SwitchElement, I[176]);
  dart.registerExtension("SVGSwitchElement", svg$.SwitchElement);
  svg$.SymbolElement = class SymbolElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.SymbolElement.__();
    }
    static new() {
      return T$7.SymbolElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("symbol"));
    }
    static ['_#new#tearOff']() {
      return svg$.SymbolElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.SymbolElement.created();
    }
    get [S$3.$preserveAspectRatio]() {
      return this.preserveAspectRatio;
    }
    get [S$3.$viewBox]() {
      return this.viewBox;
    }
  };
  (svg$.SymbolElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.SymbolElement).created.call(this);
    ;
  }).prototype = svg$.SymbolElement.prototype;
  dart.addRtiResources(svg$.SymbolElement, ["svg|SymbolElement", "svg|FitToViewBox", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.SymbolElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.SymbolElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$preserveAspectRatio]: T$7.AnimatedPreserveAspectRatioN(),
    [S$3.$viewBox]: T$7.AnimatedRectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.SymbolElement))));
  dart.setLibraryUri(svg$.SymbolElement, I[176]);
  dart.registerExtension("SVGSymbolElement", svg$.SymbolElement);
  svg$.TextContentElement = class TextContentElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.TextContentElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.TextContentElement.created();
    }
    get [S$3.$lengthAdjust]() {
      return this.lengthAdjust;
    }
    get [S$2.$textLength]() {
      return this.textLength;
    }
    [S$3.$getCharNumAtPosition](...args) {
      return this.getCharNumAtPosition.apply(this, args);
    }
    [S$3.$getComputedTextLength](...args) {
      return this.getComputedTextLength.apply(this, args);
    }
    [S$3.$getEndPositionOfChar](...args) {
      return this.getEndPositionOfChar.apply(this, args);
    }
    [S$3.$getExtentOfChar](...args) {
      return this.getExtentOfChar.apply(this, args);
    }
    [S$3.$getNumberOfChars](...args) {
      return this.getNumberOfChars.apply(this, args);
    }
    [S$3.$getRotationOfChar](...args) {
      return this.getRotationOfChar.apply(this, args);
    }
    [S$3.$getStartPositionOfChar](...args) {
      return this.getStartPositionOfChar.apply(this, args);
    }
    [S$3.$getSubStringLength](...args) {
      return this.getSubStringLength.apply(this, args);
    }
    [S$3.$selectSubString](...args) {
      return this.selectSubString.apply(this, args);
    }
  };
  (svg$.TextContentElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.TextContentElement).created.call(this);
    ;
  }).prototype = svg$.TextContentElement.prototype;
  dart.addRtiResources(svg$.TextContentElement, ["svg|TextContentElement"]);
  dart.setMethodSignature(svg$.TextContentElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$getCharNumAtPosition]: T$7.PointToint(),
    [S$3.$getComputedTextLength]: T$.VoidTodouble(),
    [S$3.$getEndPositionOfChar]: T$7.intToPoint(),
    [S$3.$getExtentOfChar]: T$7.intToRect(),
    [S$3.$getNumberOfChars]: T$.VoidToint(),
    [S$3.$getRotationOfChar]: T$0.intTodouble(),
    [S$3.$getStartPositionOfChar]: T$7.intToPoint(),
    [S$3.$getSubStringLength]: T$7.intAndintTodouble(),
    [S$3.$selectSubString]: T$.intAndintTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.TextContentElement))));
  dart.setStaticMethodSignature(svg$.TextContentElement, () => ['__']);
  dart.setGetterSignature(svg$.TextContentElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$lengthAdjust]: T$7.AnimatedEnumerationN(),
    [S$2.$textLength]: T$7.AnimatedLengthN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.TextContentElement))));
  dart.setLibraryUri(svg$.TextContentElement, I[176]);
  dart.setStaticFieldSignature(svg$.TextContentElement, () => ['LENGTHADJUST_SPACING', 'LENGTHADJUST_SPACINGANDGLYPHS', 'LENGTHADJUST_UNKNOWN']);
  dart.defineLazy(svg$.TextContentElement, {
    /*svg$.TextContentElement.LENGTHADJUST_SPACING*/get LENGTHADJUST_SPACING() {
      return 1;
    },
    /*svg$.TextContentElement.LENGTHADJUST_SPACINGANDGLYPHS*/get LENGTHADJUST_SPACINGANDGLYPHS() {
      return 2;
    },
    /*svg$.TextContentElement.LENGTHADJUST_UNKNOWN*/get LENGTHADJUST_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGTextContentElement", svg$.TextContentElement);
  svg$.TextPositioningElement = class TextPositioningElement extends svg$.TextContentElement {
    static ['_#_#tearOff']() {
      return svg$.TextPositioningElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.TextPositioningElement.created();
    }
    get [S$3.$dx]() {
      return this.dx;
    }
    get [S$3.$dy]() {
      return this.dy;
    }
    get [S$.$rotate]() {
      return this.rotate;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
  };
  (svg$.TextPositioningElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.TextPositioningElement).created.call(this);
    ;
  }).prototype = svg$.TextPositioningElement.prototype;
  dart.addRtiResources(svg$.TextPositioningElement, ["svg|TextPositioningElement"]);
  dart.setStaticMethodSignature(svg$.TextPositioningElement, () => ['__']);
  dart.setGetterSignature(svg$.TextPositioningElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$dx]: T$7.AnimatedLengthListN(),
    [S$3.$dy]: T$7.AnimatedLengthListN(),
    [S$.$rotate]: T$7.AnimatedNumberListN(),
    [S$.$x]: T$7.AnimatedLengthListN(),
    [S$.$y]: T$7.AnimatedLengthListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.TextPositioningElement))));
  dart.setLibraryUri(svg$.TextPositioningElement, I[176]);
  dart.registerExtension("SVGTextPositioningElement", svg$.TextPositioningElement);
  svg$.TSpanElement = class TSpanElement extends svg$.TextPositioningElement {
    static ['_#_#tearOff']() {
      return svg$.TSpanElement.__();
    }
    static new() {
      return T$7.TSpanElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("tspan"));
    }
    static ['_#new#tearOff']() {
      return svg$.TSpanElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.TSpanElement.created();
    }
  };
  (svg$.TSpanElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.TSpanElement).created.call(this);
    ;
  }).prototype = svg$.TSpanElement.prototype;
  dart.addRtiResources(svg$.TSpanElement, ["svg|TSpanElement"]);
  dart.setStaticMethodSignature(svg$.TSpanElement, () => ['__', 'new']);
  dart.setLibraryUri(svg$.TSpanElement, I[176]);
  dart.registerExtension("SVGTSpanElement", svg$.TSpanElement);
  svg$.Tests = class Tests extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.Tests.__();
    }
    get requiredExtensions() {
      return this.requiredExtensions;
    }
    get systemLanguage() {
      return this.systemLanguage;
    }
  };
  dart.addRtiResources(svg$.Tests, ["svg|Tests"]);
  dart.setStaticMethodSignature(svg$.Tests, () => ['__']);
  dart.setGetterSignature(svg$.Tests, () => dart.global.Object.setPrototypeOf({
    requiredExtensions: T$7.StringListN(),
    [S$3.$requiredExtensions]: T$7.StringListN(),
    systemLanguage: T$7.StringListN(),
    [S$3.$systemLanguage]: T$7.StringListN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.Tests))));
  dart.setLibraryUri(svg$.Tests, I[176]);
  dart.defineExtensionAccessors(svg$.Tests, ['requiredExtensions', 'systemLanguage']);
  svg$.TextElement = class TextElement extends svg$.TextPositioningElement {
    static ['_#_#tearOff']() {
      return svg$.TextElement.__();
    }
    static new() {
      return T$7.TextElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("text"));
    }
    static ['_#new#tearOff']() {
      return svg$.TextElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.TextElement.created();
    }
  };
  (svg$.TextElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.TextElement).created.call(this);
    ;
  }).prototype = svg$.TextElement.prototype;
  dart.addRtiResources(svg$.TextElement, ["svg|TextElement"]);
  dart.setStaticMethodSignature(svg$.TextElement, () => ['__', 'new']);
  dart.setLibraryUri(svg$.TextElement, I[176]);
  dart.registerExtension("SVGTextElement", svg$.TextElement);
  svg$.TextPathElement = class TextPathElement extends svg$.TextContentElement {
    static ['_#_#tearOff']() {
      return svg$.TextPathElement.__();
    }
    static ['_#created#tearOff']() {
      return new svg$.TextPathElement.created();
    }
    get [S$1.$method]() {
      return this.method;
    }
    get [S$3.$spacing]() {
      return this.spacing;
    }
    get [S$2.$startOffset]() {
      return this.startOffset;
    }
    get [S$.$href]() {
      return this.href;
    }
  };
  (svg$.TextPathElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.TextPathElement).created.call(this);
    ;
  }).prototype = svg$.TextPathElement.prototype;
  dart.addRtiResources(svg$.TextPathElement, ["svg|TextPathElement", "svg|UriReference", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.TextPathElement, () => ['__']);
  dart.setGetterSignature(svg$.TextPathElement, () => dart.global.Object.setPrototypeOf({
    [S$1.$method]: T$7.AnimatedEnumerationN(),
    [S$3.$spacing]: T$7.AnimatedEnumerationN(),
    [S$2.$startOffset]: T$7.AnimatedLengthN(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.TextPathElement))));
  dart.setLibraryUri(svg$.TextPathElement, I[176]);
  dart.setStaticFieldSignature(svg$.TextPathElement, () => ['TEXTPATH_METHODTYPE_ALIGN', 'TEXTPATH_METHODTYPE_STRETCH', 'TEXTPATH_METHODTYPE_UNKNOWN', 'TEXTPATH_SPACINGTYPE_AUTO', 'TEXTPATH_SPACINGTYPE_EXACT', 'TEXTPATH_SPACINGTYPE_UNKNOWN']);
  dart.defineLazy(svg$.TextPathElement, {
    /*svg$.TextPathElement.TEXTPATH_METHODTYPE_ALIGN*/get TEXTPATH_METHODTYPE_ALIGN() {
      return 1;
    },
    /*svg$.TextPathElement.TEXTPATH_METHODTYPE_STRETCH*/get TEXTPATH_METHODTYPE_STRETCH() {
      return 2;
    },
    /*svg$.TextPathElement.TEXTPATH_METHODTYPE_UNKNOWN*/get TEXTPATH_METHODTYPE_UNKNOWN() {
      return 0;
    },
    /*svg$.TextPathElement.TEXTPATH_SPACINGTYPE_AUTO*/get TEXTPATH_SPACINGTYPE_AUTO() {
      return 1;
    },
    /*svg$.TextPathElement.TEXTPATH_SPACINGTYPE_EXACT*/get TEXTPATH_SPACINGTYPE_EXACT() {
      return 2;
    },
    /*svg$.TextPathElement.TEXTPATH_SPACINGTYPE_UNKNOWN*/get TEXTPATH_SPACINGTYPE_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGTextPathElement", svg$.TextPathElement);
  svg$.TitleElement = class TitleElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.TitleElement.__();
    }
    static new() {
      return T$7.TitleElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("title"));
    }
    static ['_#new#tearOff']() {
      return svg$.TitleElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.TitleElement.created();
    }
  };
  (svg$.TitleElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.TitleElement).created.call(this);
    ;
  }).prototype = svg$.TitleElement.prototype;
  dart.addRtiResources(svg$.TitleElement, ["svg|TitleElement"]);
  dart.setStaticMethodSignature(svg$.TitleElement, () => ['__', 'new']);
  dart.setLibraryUri(svg$.TitleElement, I[176]);
  dart.registerExtension("SVGTitleElement", svg$.TitleElement);
  svg$.Transform = class Transform extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.Transform.__();
    }
    get [S$.$angle]() {
      return this.angle;
    }
    get [S$.$matrix]() {
      return this.matrix;
    }
    get [S.$type]() {
      return this.type;
    }
    [S$3.$setMatrix](...args) {
      return this.setMatrix.apply(this, args);
    }
    [S$3.$setRotate](...args) {
      return this.setRotate.apply(this, args);
    }
    [S$3.$setScale](...args) {
      return this.setScale.apply(this, args);
    }
    [S$3.$setSkewX](...args) {
      return this.setSkewX.apply(this, args);
    }
    [S$3.$setSkewY](...args) {
      return this.setSkewY.apply(this, args);
    }
    [S$3.$setTranslate](...args) {
      return this.setTranslate.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.Transform, ["svg|Transform"]);
  dart.setMethodSignature(svg$.Transform, () => dart.global.Object.setPrototypeOf({
    [S$3.$setMatrix]: T$4.MatrixTovoid(),
    [S$3.$setRotate]: T$7.numAndnumAndnumTovoid(),
    [S$3.$setScale]: T$4.numAndnumTovoid(),
    [S$3.$setSkewX]: T$2.numTovoid(),
    [S$3.$setSkewY]: T$2.numTovoid(),
    [S$3.$setTranslate]: T$4.numAndnumTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.Transform))));
  dart.setStaticMethodSignature(svg$.Transform, () => ['__']);
  dart.setGetterSignature(svg$.Transform, () => dart.global.Object.setPrototypeOf({
    [S$.$angle]: T$3.numN(),
    [S$.$matrix]: T$4.MatrixN(),
    [S.$type]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.Transform))));
  dart.setLibraryUri(svg$.Transform, I[176]);
  dart.setStaticFieldSignature(svg$.Transform, () => ['SVG_TRANSFORM_MATRIX', 'SVG_TRANSFORM_ROTATE', 'SVG_TRANSFORM_SCALE', 'SVG_TRANSFORM_SKEWX', 'SVG_TRANSFORM_SKEWY', 'SVG_TRANSFORM_TRANSLATE', 'SVG_TRANSFORM_UNKNOWN']);
  dart.defineLazy(svg$.Transform, {
    /*svg$.Transform.SVG_TRANSFORM_MATRIX*/get SVG_TRANSFORM_MATRIX() {
      return 1;
    },
    /*svg$.Transform.SVG_TRANSFORM_ROTATE*/get SVG_TRANSFORM_ROTATE() {
      return 4;
    },
    /*svg$.Transform.SVG_TRANSFORM_SCALE*/get SVG_TRANSFORM_SCALE() {
      return 3;
    },
    /*svg$.Transform.SVG_TRANSFORM_SKEWX*/get SVG_TRANSFORM_SKEWX() {
      return 5;
    },
    /*svg$.Transform.SVG_TRANSFORM_SKEWY*/get SVG_TRANSFORM_SKEWY() {
      return 6;
    },
    /*svg$.Transform.SVG_TRANSFORM_TRANSLATE*/get SVG_TRANSFORM_TRANSLATE() {
      return 2;
    },
    /*svg$.Transform.SVG_TRANSFORM_UNKNOWN*/get SVG_TRANSFORM_UNKNOWN() {
      return 0;
    }
  }, false);
  dart.registerExtension("SVGTransform", svg$.Transform);
  const JavaScriptObject_ListBase$36$16 = class JavaScriptObject_ListBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_ListBase$36$16.new = function() {
    G$.ListBaseOfTransform().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_ListBase$36$16).new.call(this);
  }).prototype = JavaScriptObject_ListBase$36$16.prototype;
  dart.applyMixin(JavaScriptObject_ListBase$36$16, G$.ListBaseOfTransform());
  const JavaScriptObject_ImmutableListMixin$36$16 = class JavaScriptObject_ImmutableListMixin extends JavaScriptObject_ListBase$36$16 {};
  (JavaScriptObject_ImmutableListMixin$36$16.new = function() {
    dart.global.Object.getPrototypeOf(JavaScriptObject_ImmutableListMixin$36$16).new.call(this);
  }).prototype = JavaScriptObject_ImmutableListMixin$36$16.prototype;
  dart.applyMixin(JavaScriptObject_ImmutableListMixin$36$16, G$.ImmutableListMixinOfTransform());
  svg$.TransformList = class TransformList extends JavaScriptObject_ImmutableListMixin$36$16 {
    static ['_#_#tearOff']() {
      return svg$.TransformList.__();
    }
    get [$length]() {
      return this.length;
    }
    get [S$3.$numberOfItems]() {
      return this.numberOfItems;
    }
    [$_get](index) {
      if (index == null) dart.nullFailed(I[175], 3853, 29, "index");
      if (index >>> 0 !== index || index >= this[$length]) dart.throw(new core.IndexError.withLength(index, this[$length], {indexable: this}));
      return this.getItem(index);
    }
    [$_set](index, value$) {
      let value = value$;
      if (index == null) dart.nullFailed(I[175], 3859, 25, "index");
      T$7.Transform()[_as](value);
      if (value == null) dart.nullFailed(I[175], 3859, 42, "value");
      dart.throw(new core.UnsupportedError.new("Cannot assign element of immutable List."));
      return value$;
    }
    set [$length](newLength) {
      if (newLength == null) dart.nullFailed(I[175], 3865, 18, "newLength");
      dart.throw(new core.UnsupportedError.new("Cannot resize immutable List."));
    }
    get [$first]() {
      if (dart.notNull(this[$length]) > 0) {
        return this[0];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$first](value) {
      super[$first] = value;
    }
    get [$last]() {
      let len = this[$length];
      if (dart.notNull(len) > 0) {
        return this[dart.notNull(len) - 1];
      }
      dart.throw(new core.StateError.new("No elements"));
    }
    set [$last](value) {
      super[$last] = value;
    }
    get [$single]() {
      let len = this[$length];
      if (len === 1) {
        return this[0];
      }
      if (len === 0) dart.throw(new core.StateError.new("No elements"));
      dart.throw(new core.StateError.new("More than one element"));
    }
    [$elementAt](index) {
      if (index == null) dart.nullFailed(I[175], 3893, 27, "index");
      return this[$_get](index);
    }
    [S$3.__setter__$1](...args) {
      return this.__setter__.apply(this, args);
    }
    [S$3.$appendItem](...args) {
      return this.appendItem.apply(this, args);
    }
    [$clear](...args) {
      return this.clear.apply(this, args);
    }
    [S$3.$consolidate](...args) {
      return this.consolidate.apply(this, args);
    }
    [S$3.$createSvgTransformFromMatrix](...args) {
      return this.createSVGTransformFromMatrix.apply(this, args);
    }
    [S$3.$getItem](...args) {
      return this.getItem.apply(this, args);
    }
    [S$3.$initialize](...args) {
      return this.initialize.apply(this, args);
    }
    [S$3.$insertItemBefore](...args) {
      return this.insertItemBefore.apply(this, args);
    }
    [S$3.$removeItem](...args) {
      return this.removeItem.apply(this, args);
    }
    [S$3.$replaceItem](...args) {
      return this.replaceItem.apply(this, args);
    }
  };
  dart.addRtiResources(svg$.TransformList, ["svg|TransformList", "core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
  dart.setMethodSignature(svg$.TransformList, () => dart.global.Object.setPrototypeOf({
    [$_get]: T$7.intToTransform(),
    [$_set]: T$.intAndObjectNTovoid(),
    [S$3.__setter__$1]: T$7.intAndTransformTovoid(),
    [S$3.$appendItem]: T$7.TransformToTransform(),
    [S$3.$consolidate]: T$7.VoidToTransformN(),
    [S$3.$createSvgTransformFromMatrix]: T$7.MatrixToTransform(),
    [S$3.$getItem]: T$7.intToTransform(),
    [S$3.$initialize]: T$7.TransformToTransform(),
    [S$3.$insertItemBefore]: T$7.TransformAndintToTransform(),
    [S$3.$removeItem]: T$7.intToTransform(),
    [S$3.$replaceItem]: T$7.TransformAndintToTransform()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(svg$.TransformList))));
  dart.setStaticMethodSignature(svg$.TransformList, () => ['__']);
  dart.setGetterSignature(svg$.TransformList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.int(),
    [S$3.$numberOfItems]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.TransformList))));
  dart.setSetterSignature(svg$.TransformList, () => dart.global.Object.setPrototypeOf({[$length]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.TransformList))));
  dart.setLibraryUri(svg$.TransformList, I[176]);
  dart.registerExtension("SVGTransformList", svg$.TransformList);
  svg$.UnitTypes = class UnitTypes extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.UnitTypes.__();
    }
  };
  dart.addRtiResources(svg$.UnitTypes, ["svg|UnitTypes"]);
  dart.setStaticMethodSignature(svg$.UnitTypes, () => ['__']);
  dart.setLibraryUri(svg$.UnitTypes, I[176]);
  dart.setStaticFieldSignature(svg$.UnitTypes, () => ['SVG_UNIT_TYPE_OBJECTBOUNDINGBOX', 'SVG_UNIT_TYPE_UNKNOWN', 'SVG_UNIT_TYPE_USERSPACEONUSE']);
  dart.defineLazy(svg$.UnitTypes, {
    /*svg$.UnitTypes.SVG_UNIT_TYPE_OBJECTBOUNDINGBOX*/get SVG_UNIT_TYPE_OBJECTBOUNDINGBOX() {
      return 2;
    },
    /*svg$.UnitTypes.SVG_UNIT_TYPE_UNKNOWN*/get SVG_UNIT_TYPE_UNKNOWN() {
      return 0;
    },
    /*svg$.UnitTypes.SVG_UNIT_TYPE_USERSPACEONUSE*/get SVG_UNIT_TYPE_USERSPACEONUSE() {
      return 1;
    }
  }, false);
  dart.registerExtension("SVGUnitTypes", svg$.UnitTypes);
  svg$.UriReference = class UriReference extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.UriReference.__();
    }
    get href() {
      return this.href;
    }
  };
  dart.addRtiResources(svg$.UriReference, ["svg|UriReference"]);
  dart.setStaticMethodSignature(svg$.UriReference, () => ['__']);
  dart.setGetterSignature(svg$.UriReference, () => dart.global.Object.setPrototypeOf({
    href: T$7.AnimatedStringN(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.UriReference))));
  dart.setLibraryUri(svg$.UriReference, I[176]);
  dart.defineExtensionAccessors(svg$.UriReference, ['href']);
  svg$.UseElement = class UseElement extends svg$.GraphicsElement {
    static ['_#_#tearOff']() {
      return svg$.UseElement.__();
    }
    static new() {
      return T$7.UseElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("use"));
    }
    static ['_#new#tearOff']() {
      return svg$.UseElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.UseElement.created();
    }
    get [$height]() {
      return this.height;
    }
    get [$width]() {
      return this.width;
    }
    get [S$.$x]() {
      return this.x;
    }
    get [S$.$y]() {
      return this.y;
    }
    get [S$.$href]() {
      return this.href;
    }
  };
  (svg$.UseElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.UseElement).created.call(this);
    ;
  }).prototype = svg$.UseElement.prototype;
  dart.addRtiResources(svg$.UseElement, ["svg|UseElement", "svg|UriReference", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.UseElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.UseElement, () => dart.global.Object.setPrototypeOf({
    [$height]: T$7.AnimatedLengthN(),
    [$width]: T$7.AnimatedLengthN(),
    [S$.$x]: T$7.AnimatedLengthN(),
    [S$.$y]: T$7.AnimatedLengthN(),
    [S$.$href]: T$7.AnimatedStringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.UseElement))));
  dart.setLibraryUri(svg$.UseElement, I[176]);
  dart.registerExtension("SVGUseElement", svg$.UseElement);
  svg$.ViewElement = class ViewElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$.ViewElement.__();
    }
    static new() {
      return T$7.ViewElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("view"));
    }
    static ['_#new#tearOff']() {
      return svg$.ViewElement.new();
    }
    static ['_#created#tearOff']() {
      return new svg$.ViewElement.created();
    }
    get [S$3.$preserveAspectRatio]() {
      return this.preserveAspectRatio;
    }
    get [S$3.$viewBox]() {
      return this.viewBox;
    }
    get [S$3.$zoomAndPan]() {
      return this.zoomAndPan;
    }
    set [S$3.$zoomAndPan](value) {
      this.zoomAndPan = value;
    }
  };
  (svg$.ViewElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$.ViewElement).created.call(this);
    ;
  }).prototype = svg$.ViewElement.prototype;
  dart.addRtiResources(svg$.ViewElement, ["svg|ViewElement", "svg|FitToViewBox", "svg|ZoomAndPan", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$.ViewElement, () => ['__', 'new']);
  dart.setGetterSignature(svg$.ViewElement, () => dart.global.Object.setPrototypeOf({
    [S$3.$preserveAspectRatio]: T$7.AnimatedPreserveAspectRatioN(),
    [S$3.$viewBox]: T$7.AnimatedRectN(),
    [S$3.$zoomAndPan]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.ViewElement))));
  dart.setSetterSignature(svg$.ViewElement, () => dart.global.Object.setPrototypeOf({[S$3.$zoomAndPan]: T$.intN()}, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.ViewElement))));
  dart.setLibraryUri(svg$.ViewElement, I[176]);
  dart.registerExtension("SVGViewElement", svg$.ViewElement);
  svg$.ZoomAndPan = class ZoomAndPan extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return svg$.ZoomAndPan.__();
    }
    get zoomAndPan() {
      return this.zoomAndPan;
    }
    set zoomAndPan(value) {
      this.zoomAndPan = value;
    }
  };
  dart.addRtiResources(svg$.ZoomAndPan, ["svg|ZoomAndPan"]);
  dart.setStaticMethodSignature(svg$.ZoomAndPan, () => ['__']);
  dart.setGetterSignature(svg$.ZoomAndPan, () => dart.global.Object.setPrototypeOf({
    zoomAndPan: T$.intN(),
    [S$3.$zoomAndPan]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(svg$.ZoomAndPan))));
  dart.setSetterSignature(svg$.ZoomAndPan, () => dart.global.Object.setPrototypeOf({
    zoomAndPan: T$.intN(),
    [S$3.$zoomAndPan]: T$.intN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(svg$.ZoomAndPan))));
  dart.setLibraryUri(svg$.ZoomAndPan, I[176]);
  dart.setStaticFieldSignature(svg$.ZoomAndPan, () => ['SVG_ZOOMANDPAN_DISABLE', 'SVG_ZOOMANDPAN_MAGNIFY', 'SVG_ZOOMANDPAN_UNKNOWN']);
  dart.defineExtensionAccessors(svg$.ZoomAndPan, ['zoomAndPan']);
  dart.defineLazy(svg$.ZoomAndPan, {
    /*svg$.ZoomAndPan.SVG_ZOOMANDPAN_DISABLE*/get SVG_ZOOMANDPAN_DISABLE() {
      return 1;
    },
    /*svg$.ZoomAndPan.SVG_ZOOMANDPAN_MAGNIFY*/get SVG_ZOOMANDPAN_MAGNIFY() {
      return 2;
    },
    /*svg$.ZoomAndPan.SVG_ZOOMANDPAN_UNKNOWN*/get SVG_ZOOMANDPAN_UNKNOWN() {
      return 0;
    }
  }, false);
  svg$._SVGFEDropShadowElement = class _SVGFEDropShadowElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$._SVGFEDropShadowElement.__();
    }
  };
  (svg$._SVGFEDropShadowElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$._SVGFEDropShadowElement).created.call(this);
    ;
  }).prototype = svg$._SVGFEDropShadowElement.prototype;
  dart.addRtiResources(svg$._SVGFEDropShadowElement, ["svg|_SVGFEDropShadowElement", "svg|FilterPrimitiveStandardAttributes", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$._SVGFEDropShadowElement, () => ['__']);
  dart.setLibraryUri(svg$._SVGFEDropShadowElement, I[176]);
  dart.registerExtension("SVGFEDropShadowElement", svg$._SVGFEDropShadowElement);
  svg$._SVGMPathElement = class _SVGMPathElement extends svg$.SvgElement {
    static ['_#_#tearOff']() {
      return svg$._SVGMPathElement.__();
    }
    static new() {
      return T$7._SVGMPathElement()[_as](svg$._SvgElementFactoryProvider.createSvgElement_tag("mpath"));
    }
    static ['_#new#tearOff']() {
      return svg$._SVGMPathElement.new();
    }
  };
  (svg$._SVGMPathElement.created = function() {
    dart.global.Object.getPrototypeOf(svg$._SVGMPathElement).created.call(this);
    ;
  }).prototype = svg$._SVGMPathElement.prototype;
  dart.addRtiResources(svg$._SVGMPathElement, ["svg|_SVGMPathElement", "svg|UriReference", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(svg$._SVGMPathElement, () => ['__', 'new']);
  dart.setLibraryUri(svg$._SVGMPathElement, I[176]);
  dart.registerExtension("SVGMPathElement", svg$._SVGMPathElement);
  web_audio.AudioNode = class AudioNode extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return web_audio.AudioNode.__();
    }
    get [S$3.$channelCount]() {
      return this.channelCount;
    }
    set [S$3.$channelCount](value) {
      this.channelCount = value;
    }
    get [S$3.$channelCountMode]() {
      return this.channelCountMode;
    }
    set [S$3.$channelCountMode](value) {
      this.channelCountMode = value;
    }
    get [S$3.$channelInterpretation]() {
      return this.channelInterpretation;
    }
    set [S$3.$channelInterpretation](value) {
      this.channelInterpretation = value;
    }
    get [S$3.$context]() {
      return this.context;
    }
    get [S$3.$numberOfInputs]() {
      return this.numberOfInputs;
    }
    get [S$3.$numberOfOutputs]() {
      return this.numberOfOutputs;
    }
    [S$3._connect](...args) {
      return this.connect.apply(this, args);
    }
    [S$1.$disconnect](...args) {
      return this.disconnect.apply(this, args);
    }
    [S$3.$connectNode](destination, output = 0, input = 0) {
      if (destination == null) dart.nullFailed(I[177], 396, 30, "destination");
      if (output == null) dart.nullFailed(I[177], 396, 48, "output");
      if (input == null) dart.nullFailed(I[177], 396, 64, "input");
      this[S$3._connect](destination, output, input);
    }
    [S$3.$connectParam](destination, output = 0) {
      if (destination == null) dart.nullFailed(I[177], 400, 32, "destination");
      if (output == null) dart.nullFailed(I[177], 400, 50, "output");
      this[S$3._connect](destination, output);
    }
  };
  dart.addRtiResources(web_audio.AudioNode, ["web_audio|AudioNode"]);
  dart.setMethodSignature(web_audio.AudioNode, () => dart.global.Object.setPrototypeOf({
    [S$3._connect]: T$7.dynamicAndintNAndintNToAudioNodeN(),
    [S$1.$disconnect]: T$7.dynamicAndintNAndintNTovoid(),
    [S$3.$connectNode]: T$7.AudioNodeAndintAndintTovoid(),
    [S$3.$connectParam]: T$7.AudioParamAndintTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioNode))));
  dart.setStaticMethodSignature(web_audio.AudioNode, () => ['__']);
  dart.setGetterSignature(web_audio.AudioNode, () => dart.global.Object.setPrototypeOf({
    [S$3.$channelCount]: T$.intN(),
    [S$3.$channelCountMode]: T$.StringN(),
    [S$3.$channelInterpretation]: T$.StringN(),
    [S$3.$context]: T$7.BaseAudioContextN(),
    [S$3.$numberOfInputs]: T$.intN(),
    [S$3.$numberOfOutputs]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioNode))));
  dart.setSetterSignature(web_audio.AudioNode, () => dart.global.Object.setPrototypeOf({
    [S$3.$channelCount]: T$.intN(),
    [S$3.$channelCountMode]: T$.StringN(),
    [S$3.$channelInterpretation]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.AudioNode))));
  dart.setLibraryUri(web_audio.AudioNode, I[178]);
  dart.registerExtension("AudioNode", web_audio.AudioNode);
  web_audio.AnalyserNode = class AnalyserNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.AnalyserNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 44, 41, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.AnalyserNode._create_1(context, options_1);
      }
      return web_audio.AnalyserNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 44, 41, "context");
      return web_audio.AnalyserNode.new(context, options);
    }
    static _create_1(context, options) {
      return new AnalyserNode(context, options);
    }
    static _create_2(context) {
      return new AnalyserNode(context);
    }
    get [S$3.$fftSize]() {
      return this.fftSize;
    }
    set [S$3.$fftSize](value) {
      this.fftSize = value;
    }
    get [S$3.$frequencyBinCount]() {
      return this.frequencyBinCount;
    }
    get [S$3.$maxDecibels]() {
      return this.maxDecibels;
    }
    set [S$3.$maxDecibels](value) {
      this.maxDecibels = value;
    }
    get [S$3.$minDecibels]() {
      return this.minDecibels;
    }
    set [S$3.$minDecibels](value) {
      this.minDecibels = value;
    }
    get [S$3.$smoothingTimeConstant]() {
      return this.smoothingTimeConstant;
    }
    set [S$3.$smoothingTimeConstant](value) {
      this.smoothingTimeConstant = value;
    }
    [S$3.$getByteFrequencyData](...args) {
      return this.getByteFrequencyData.apply(this, args);
    }
    [S$3.$getByteTimeDomainData](...args) {
      return this.getByteTimeDomainData.apply(this, args);
    }
    [S$3.$getFloatFrequencyData](...args) {
      return this.getFloatFrequencyData.apply(this, args);
    }
    [S$3.$getFloatTimeDomainData](...args) {
      return this.getFloatTimeDomainData.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.AnalyserNode, ["web_audio|AnalyserNode"]);
  dart.setMethodSignature(web_audio.AnalyserNode, () => dart.global.Object.setPrototypeOf({
    [S$3.$getByteFrequencyData]: T$7.Uint8ListTovoid(),
    [S$3.$getByteTimeDomainData]: T$7.Uint8ListTovoid(),
    [S$3.$getFloatFrequencyData]: T$7.Float32ListTovoid(),
    [S$3.$getFloatTimeDomainData]: T$7.Float32ListTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AnalyserNode))));
  dart.setStaticMethodSignature(web_audio.AnalyserNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.AnalyserNode, () => dart.global.Object.setPrototypeOf({
    [S$3.$fftSize]: T$.intN(),
    [S$3.$frequencyBinCount]: T$.intN(),
    [S$3.$maxDecibels]: T$3.numN(),
    [S$3.$minDecibels]: T$3.numN(),
    [S$3.$smoothingTimeConstant]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AnalyserNode))));
  dart.setSetterSignature(web_audio.AnalyserNode, () => dart.global.Object.setPrototypeOf({
    [S$3.$fftSize]: T$.intN(),
    [S$3.$maxDecibels]: T$3.numN(),
    [S$3.$minDecibels]: T$3.numN(),
    [S$3.$smoothingTimeConstant]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.AnalyserNode))));
  dart.setLibraryUri(web_audio.AnalyserNode, I[178]);
  dart.registerExtension("AnalyserNode", web_audio.AnalyserNode);
  dart.registerExtension("RealtimeAnalyserNode", web_audio.AnalyserNode);
  web_audio.AudioBuffer = class AudioBuffer$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_audio.AudioBuffer.__();
    }
    static new(options) {
      if (options == null) dart.nullFailed(I[177], 93, 27, "options");
      let options_1 = html_common.convertDartToNative_Dictionary(options);
      return web_audio.AudioBuffer._create_1(options_1);
    }
    static ['_#new#tearOff'](options) {
      if (options == null) dart.nullFailed(I[177], 93, 27, "options");
      return web_audio.AudioBuffer.new(options);
    }
    static _create_1(options) {
      return new AudioBuffer(options);
    }
    get [S$.$duration]() {
      return this.duration;
    }
    get [$length]() {
      return this.length;
    }
    get [S$3.$numberOfChannels]() {
      return this.numberOfChannels;
    }
    get [S$3.$sampleRate]() {
      return this.sampleRate;
    }
    [S$3.$copyFromChannel](...args) {
      return this.copyFromChannel.apply(this, args);
    }
    [S$3.$copyToChannel](...args) {
      return this.copyToChannel.apply(this, args);
    }
    [S$3.$getChannelData](...args) {
      return this.getChannelData.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.AudioBuffer, ["web_audio|AudioBuffer"]);
  dart.setMethodSignature(web_audio.AudioBuffer, () => dart.global.Object.setPrototypeOf({
    [S$3.$copyFromChannel]: T$7.Float32ListAndintAndintNTovoid(),
    [S$3.$copyToChannel]: T$7.Float32ListAndintAndintNTovoid(),
    [S$3.$getChannelData]: T$0.intToFloat32List()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioBuffer))));
  dart.setStaticMethodSignature(web_audio.AudioBuffer, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(web_audio.AudioBuffer, () => dart.global.Object.setPrototypeOf({
    [S$.$duration]: T$3.numN(),
    [$length]: T$.intN(),
    [S$3.$numberOfChannels]: T$.intN(),
    [S$3.$sampleRate]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioBuffer))));
  dart.setLibraryUri(web_audio.AudioBuffer, I[178]);
  dart.registerExtension("AudioBuffer", web_audio.AudioBuffer);
  web_audio.AudioScheduledSourceNode = class AudioScheduledSourceNode extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.AudioScheduledSourceNode.__();
    }
    [S$4.$start2](...args) {
      return this.start.apply(this, args);
    }
    [S$.$stop](...args) {
      return this.stop.apply(this, args);
    }
    get [S.$onEnded]() {
      return web_audio.AudioScheduledSourceNode.endedEvent.forTarget(this);
    }
  };
  dart.addRtiResources(web_audio.AudioScheduledSourceNode, ["web_audio|AudioScheduledSourceNode"]);
  dart.setMethodSignature(web_audio.AudioScheduledSourceNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$start2]: T$7.numNTovoid(),
    [S$.$stop]: T$7.numNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioScheduledSourceNode))));
  dart.setStaticMethodSignature(web_audio.AudioScheduledSourceNode, () => ['__']);
  dart.setGetterSignature(web_audio.AudioScheduledSourceNode, () => dart.global.Object.setPrototypeOf({[S.$onEnded]: T$3.StreamOfEvent()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioScheduledSourceNode))));
  dart.setLibraryUri(web_audio.AudioScheduledSourceNode, I[178]);
  dart.setStaticFieldSignature(web_audio.AudioScheduledSourceNode, () => ['endedEvent']);
  dart.defineLazy(web_audio.AudioScheduledSourceNode, {
    /*web_audio.AudioScheduledSourceNode.endedEvent*/get endedEvent() {
      return C[302] || CT.C302;
    }
  }, false);
  dart.registerExtension("AudioScheduledSourceNode", web_audio.AudioScheduledSourceNode);
  web_audio.AudioBufferSourceNode = class AudioBufferSourceNode$ extends web_audio.AudioScheduledSourceNode {
    static ['_#_#tearOff']() {
      return web_audio.AudioBufferSourceNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 129, 50, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.AudioBufferSourceNode._create_1(context, options_1);
      }
      return web_audio.AudioBufferSourceNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 129, 50, "context");
      return web_audio.AudioBufferSourceNode.new(context, options);
    }
    static _create_1(context, options) {
      return new AudioBufferSourceNode(context, options);
    }
    static _create_2(context) {
      return new AudioBufferSourceNode(context);
    }
    get [$buffer]() {
      return this.buffer;
    }
    set [$buffer](value) {
      this.buffer = value;
    }
    get [S$4.$detune]() {
      return this.detune;
    }
    get [S$.$loop]() {
      return this.loop;
    }
    set [S$.$loop](value) {
      this.loop = value;
    }
    get [S$4.$loopEnd]() {
      return this.loopEnd;
    }
    set [S$4.$loopEnd](value) {
      this.loopEnd = value;
    }
    get [S$4.$loopStart]() {
      return this.loopStart;
    }
    set [S$4.$loopStart](value) {
      this.loopStart = value;
    }
    get [S$.$playbackRate]() {
      return this.playbackRate;
    }
    [S$.$start](...args) {
      return this.start.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.AudioBufferSourceNode, ["web_audio|AudioBufferSourceNode"]);
  dart.setMethodSignature(web_audio.AudioBufferSourceNode, () => dart.global.Object.setPrototypeOf({[S$.$start]: T$7.numNAndnumNAndnumNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioBufferSourceNode))));
  dart.setStaticMethodSignature(web_audio.AudioBufferSourceNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.AudioBufferSourceNode, () => dart.global.Object.setPrototypeOf({
    [$buffer]: T$7.AudioBufferN(),
    [S$4.$detune]: T$7.AudioParamN(),
    [S$.$loop]: T$.boolN(),
    [S$4.$loopEnd]: T$3.numN(),
    [S$4.$loopStart]: T$3.numN(),
    [S$.$playbackRate]: T$7.AudioParamN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioBufferSourceNode))));
  dart.setSetterSignature(web_audio.AudioBufferSourceNode, () => dart.global.Object.setPrototypeOf({
    [$buffer]: T$7.AudioBufferN(),
    [S$.$loop]: T$.boolN(),
    [S$4.$loopEnd]: T$3.numN(),
    [S$4.$loopStart]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.AudioBufferSourceNode))));
  dart.setLibraryUri(web_audio.AudioBufferSourceNode, I[178]);
  dart.registerExtension("AudioBufferSourceNode", web_audio.AudioBufferSourceNode);
  web_audio.BaseAudioContext = class BaseAudioContext extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return web_audio.BaseAudioContext.__();
    }
    get [S$.$currentTime]() {
      return this.currentTime;
    }
    get [S$4.$destination]() {
      return this.destination;
    }
    get [S$4.$listener]() {
      return this.listener;
    }
    get [S$3.$sampleRate]() {
      return this.sampleRate;
    }
    get [S$.$state]() {
      return this.state;
    }
    [S$4.$createAnalyser](...args) {
      return this.createAnalyser.apply(this, args);
    }
    [S$4.$createBiquadFilter](...args) {
      return this.createBiquadFilter.apply(this, args);
    }
    [S$4.$createBuffer](...args) {
      return this.createBuffer.apply(this, args);
    }
    [S$4.$createBufferSource](...args) {
      return this.createBufferSource.apply(this, args);
    }
    [S$4.$createChannelMerger](...args) {
      return this.createChannelMerger.apply(this, args);
    }
    [S$4.$createChannelSplitter](...args) {
      return this.createChannelSplitter.apply(this, args);
    }
    [S$4.$createConstantSource](...args) {
      return this.createConstantSource.apply(this, args);
    }
    [S$4.$createConvolver](...args) {
      return this.createConvolver.apply(this, args);
    }
    [S$4.$createDelay](...args) {
      return this.createDelay.apply(this, args);
    }
    [S$4.$createDynamicsCompressor](...args) {
      return this.createDynamicsCompressor.apply(this, args);
    }
    [S$4.$createGain](...args) {
      return this.createGain.apply(this, args);
    }
    [S$4.$createIirFilter](...args) {
      return this.createIIRFilter.apply(this, args);
    }
    [S$4.$createMediaElementSource](...args) {
      return this.createMediaElementSource.apply(this, args);
    }
    [S$4.$createMediaStreamDestination](...args) {
      return this.createMediaStreamDestination.apply(this, args);
    }
    [S$4.$createMediaStreamSource](...args) {
      return this.createMediaStreamSource.apply(this, args);
    }
    [S$4.$createOscillator](...args) {
      return this.createOscillator.apply(this, args);
    }
    [S$4.$createPanner](...args) {
      return this.createPanner.apply(this, args);
    }
    [S$4.$createPeriodicWave](real, imag, options = null) {
      if (real == null) dart.nullFailed(I[177], 721, 45, "real");
      if (imag == null) dart.nullFailed(I[177], 721, 61, "imag");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return this[S$4._createPeriodicWave_1](real, imag, options_1);
      }
      return this[S$4._createPeriodicWave_2](real, imag);
    }
    [S$4._createPeriodicWave_1](...args) {
      return this.createPeriodicWave.apply(this, args);
    }
    [S$4._createPeriodicWave_2](...args) {
      return this.createPeriodicWave.apply(this, args);
    }
    [S$4.$createScriptProcessor](...args) {
      return this.createScriptProcessor.apply(this, args);
    }
    [S$4.$createStereoPanner](...args) {
      return this.createStereoPanner.apply(this, args);
    }
    [S$4.$createWaveShaper](...args) {
      return this.createWaveShaper.apply(this, args);
    }
    [S$4.$decodeAudioData](audioData, successCallback = null, errorCallback = null) {
      if (audioData == null) dart.nullFailed(I[177], 745, 50, "audioData");
      return js_util.promiseToFuture(T$7.AudioBuffer(), this.decodeAudioData(audioData, successCallback, errorCallback));
    }
    [S$1.$resume]() {
      return js_util.promiseToFuture(T$.dynamic(), this.resume());
    }
  };
  dart.addRtiResources(web_audio.BaseAudioContext, ["web_audio|BaseAudioContext"]);
  dart.setMethodSignature(web_audio.BaseAudioContext, () => dart.global.Object.setPrototypeOf({
    [S$4.$createAnalyser]: T$7.VoidToAnalyserNode(),
    [S$4.$createBiquadFilter]: T$7.VoidToBiquadFilterNode(),
    [S$4.$createBuffer]: T$7.intAndintAndnumToAudioBuffer(),
    [S$4.$createBufferSource]: T$7.VoidToAudioBufferSourceNode(),
    [S$4.$createChannelMerger]: T$7.intNToChannelMergerNode(),
    [S$4.$createChannelSplitter]: T$7.intNToChannelSplitterNode(),
    [S$4.$createConstantSource]: T$7.VoidToConstantSourceNode(),
    [S$4.$createConvolver]: T$7.VoidToConvolverNode(),
    [S$4.$createDelay]: T$7.numNToDelayNode(),
    [S$4.$createDynamicsCompressor]: T$7.VoidToDynamicsCompressorNode(),
    [S$4.$createGain]: T$7.VoidToGainNode(),
    [S$4.$createIirFilter]: T$7.ListOfnumAndListOfnumToIirFilterNode(),
    [S$4.$createMediaElementSource]: T$7.MediaElementToMediaElementAudioSourceNode(),
    [S$4.$createMediaStreamDestination]: T$7.VoidToMediaStreamAudioDestinationNode(),
    [S$4.$createMediaStreamSource]: T$7.MediaStreamToMediaStreamAudioSourceNode(),
    [S$4.$createOscillator]: T$7.VoidToOscillatorNode(),
    [S$4.$createPanner]: T$7.VoidToPannerNode(),
    [S$4.$createPeriodicWave]: T$7.ListOfnumAndListOfnumAndMapNToPeriodicWave(),
    [S$4._createPeriodicWave_1]: T$7.ListOfnumAndListOfnumAnddynamicToPeriodicWave(),
    [S$4._createPeriodicWave_2]: T$7.ListOfnumAndListOfnumToPeriodicWave(),
    [S$4.$createScriptProcessor]: T$7.intNAndintNAndintNToScriptProcessorNode(),
    [S$4.$createStereoPanner]: T$7.VoidToStereoPannerNode(),
    [S$4.$createWaveShaper]: T$7.VoidToWaveShaperNode(),
    [S$4.$decodeAudioData]: T$7.ByteBufferAndFnAndFnToFutureOfAudioBuffer(),
    [S$1.$resume]: T$.VoidToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.BaseAudioContext))));
  dart.setStaticMethodSignature(web_audio.BaseAudioContext, () => ['__']);
  dart.setGetterSignature(web_audio.BaseAudioContext, () => dart.global.Object.setPrototypeOf({
    [S$.$currentTime]: T$3.numN(),
    [S$4.$destination]: T$7.AudioDestinationNodeN(),
    [S$4.$listener]: T$7.AudioListenerN(),
    [S$3.$sampleRate]: T$3.numN(),
    [S$.$state]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.BaseAudioContext))));
  dart.setLibraryUri(web_audio.BaseAudioContext, I[178]);
  dart.registerExtension("BaseAudioContext", web_audio.BaseAudioContext);
  web_audio.AudioContext = class AudioContext extends web_audio.BaseAudioContext {
    static ['_#_#tearOff']() {
      return web_audio.AudioContext.__();
    }
    static get supported() {
      return !!(window.AudioContext || window.webkitAudioContext);
    }
    get [S$4.$baseLatency]() {
      return this.baseLatency;
    }
    [S.$close]() {
      return js_util.promiseToFuture(T$.dynamic(), this.close());
    }
    [S$4.$getOutputTimestamp]() {
      return dart.nullCheck(html_common.convertNativeToDart_Dictionary(this[S$4._getOutputTimestamp_1]()));
    }
    [S$4._getOutputTimestamp_1](...args) {
      return this.getOutputTimestamp.apply(this, args);
    }
    [S$4.$suspend]() {
      return js_util.promiseToFuture(T$.dynamic(), this.suspend());
    }
    static new() {
      return new (window.AudioContext || window.webkitAudioContext)();
    }
    static ['_#new#tearOff']() {
      return web_audio.AudioContext.new();
    }
    [S$4.$createGain]() {
      if (this.createGain !== undefined) {
        return this.createGain();
      } else {
        return this.createGainNode();
      }
    }
    [S$4.$createScriptProcessor](bufferSize = null, numberOfInputChannels = null, numberOfOutputChannels = null) {
      let $function = this.createScriptProcessor || this.createJavaScriptNode;
      if (numberOfOutputChannels != null) {
        return $function.call(this, bufferSize, numberOfInputChannels, numberOfOutputChannels);
      } else if (numberOfInputChannels != null) {
        return $function.call(this, bufferSize, numberOfInputChannels);
      } else if (bufferSize != null) {
        return $function.call(this, bufferSize);
      } else {
        return $function.call(this);
      }
    }
    [S$4.$decodeAudioData](audioData, successCallback = null, errorCallback = null) {
      if (audioData == null) dart.nullFailed(I[177], 231, 50, "audioData");
      if (!(successCallback == null === (errorCallback == null))) dart.assertFailed(null, I[177], 235, 12, "(successCallback == null) == (errorCallback == null)");
      let completer = G$.CompleterOfObject().new();
      let errorInCallbackIsNull = false;
      function success(decodedData) {
        if (decodedData == null) dart.nullFailed(I[177], 245, 30, "decodedData");
        completer.complete(decodedData);
        dart.nullCheck(successCallback)(decodedData);
      }
      dart.fn(success, T$7.AudioBufferTovoid());
      let nullErrorString = "[AudioContext.decodeAudioData] completed with a null error.";
      function error(error) {
        if (error != null) {
          completer.complete(error);
          dart.nullCheck(errorCallback)(error);
        } else {
          completer.complete(nullErrorString);
          errorInCallbackIsNull = true;
        }
      }
      dart.fn(error, T$7.DomExceptionNTovoid());
      let decodeResult = null;
      if (successCallback == null) {
        decodeResult = this.decodeAudioData(audioData);
      } else {
        decodeResult = this.decodeAudioData(audioData, _js_helper.convertDartClosureToJS(T$7.AudioBufferTovoid(), success, 1), _js_helper.convertDartClosureToJS(T$7.DomExceptionNTovoid(), error, 1));
      }
      if (decodeResult != null) {
        return js_util.promiseToFuture(T$7.AudioBuffer(), T$.Object()[_as](decodeResult)).catchError(dart.fn(error => {
          let t$36378;
          if (errorInCallbackIsNull) {
            if (error != null) {
              t$36378 = errorCallback;
              t$36378 == null ? null : t$36378(T$7.DomException()[_as](error));
            } else {
              dart.throw(nullErrorString);
            }
          }
          dart.throw(T$.Object()[_as](error));
        }, T$7.dynamicToNever()));
      }
      return completer.future.then(T$7.AudioBuffer(), dart.fn(value => {
        if (value == null) dart.nullFailed(I[177], 310, 35, "value");
        if (T$7.AudioBuffer()[_is](value)) return value;
        dart.throw(value);
      }, T$7.ObjectToAudioBuffer()));
    }
  };
  dart.addRtiResources(web_audio.AudioContext, ["web_audio|AudioContext"]);
  dart.setMethodSignature(web_audio.AudioContext, () => dart.global.Object.setPrototypeOf({
    [S.$close]: T$.VoidToFuture(),
    [S$4.$getOutputTimestamp]: T$4.VoidToMap(),
    [S$4._getOutputTimestamp_1]: T$.VoidTodynamic(),
    [S$4.$suspend]: T$.VoidToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioContext))));
  dart.setStaticMethodSignature(web_audio.AudioContext, () => ['__', 'new']);
  dart.setGetterSignature(web_audio.AudioContext, () => dart.global.Object.setPrototypeOf({[S$4.$baseLatency]: T$3.numN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioContext))));
  dart.setStaticGetterSignature(web_audio.AudioContext, () => ['supported']);
  dart.setLibraryUri(web_audio.AudioContext, I[178]);
  dart.registerExtension("AudioContext", web_audio.AudioContext);
  dart.registerExtension("webkitAudioContext", web_audio.AudioContext);
  web_audio.AudioDestinationNode = class AudioDestinationNode extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.AudioDestinationNode.__();
    }
    get [S$4.$maxChannelCount]() {
      return this.maxChannelCount;
    }
  };
  dart.addRtiResources(web_audio.AudioDestinationNode, ["web_audio|AudioDestinationNode"]);
  dart.setStaticMethodSignature(web_audio.AudioDestinationNode, () => ['__']);
  dart.setGetterSignature(web_audio.AudioDestinationNode, () => dart.global.Object.setPrototypeOf({[S$4.$maxChannelCount]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioDestinationNode))));
  dart.setLibraryUri(web_audio.AudioDestinationNode, I[178]);
  dart.registerExtension("AudioDestinationNode", web_audio.AudioDestinationNode);
  web_audio.AudioListener = class AudioListener extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_audio.AudioListener.__();
    }
    get [S$4.$forwardX]() {
      return this.forwardX;
    }
    get [S$4.$forwardY]() {
      return this.forwardY;
    }
    get [S$4.$forwardZ]() {
      return this.forwardZ;
    }
    get [S$2.$positionX]() {
      return this.positionX;
    }
    get [S$2.$positionY]() {
      return this.positionY;
    }
    get [S$4.$positionZ]() {
      return this.positionZ;
    }
    get [S$4.$upX]() {
      return this.upX;
    }
    get [S$4.$upY]() {
      return this.upY;
    }
    get [S$4.$upZ]() {
      return this.upZ;
    }
    [S$4.$setOrientation](...args) {
      return this.setOrientation.apply(this, args);
    }
    [S$2.$setPosition](...args) {
      return this.setPosition.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.AudioListener, ["web_audio|AudioListener"]);
  dart.setMethodSignature(web_audio.AudioListener, () => dart.global.Object.setPrototypeOf({
    [S$4.$setOrientation]: T$4.numAndnumAndnum__Tovoid$1(),
    [S$2.$setPosition]: T$7.numAndnumAndnumTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioListener))));
  dart.setStaticMethodSignature(web_audio.AudioListener, () => ['__']);
  dart.setGetterSignature(web_audio.AudioListener, () => dart.global.Object.setPrototypeOf({
    [S$4.$forwardX]: T$7.AudioParamN(),
    [S$4.$forwardY]: T$7.AudioParamN(),
    [S$4.$forwardZ]: T$7.AudioParamN(),
    [S$2.$positionX]: T$7.AudioParamN(),
    [S$2.$positionY]: T$7.AudioParamN(),
    [S$4.$positionZ]: T$7.AudioParamN(),
    [S$4.$upX]: T$7.AudioParamN(),
    [S$4.$upY]: T$7.AudioParamN(),
    [S$4.$upZ]: T$7.AudioParamN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioListener))));
  dart.setLibraryUri(web_audio.AudioListener, I[178]);
  dart.registerExtension("AudioListener", web_audio.AudioListener);
  web_audio.AudioParam = class AudioParam extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_audio.AudioParam.__();
    }
    get [S$1.$defaultValue]() {
      return this.defaultValue;
    }
    get [S$4.$maxValue]() {
      return this.maxValue;
    }
    get [S$4.$minValue]() {
      return this.minValue;
    }
    get [S.$value]() {
      return this.value;
    }
    set [S.$value](value) {
      this.value = value;
    }
    [S$4.$cancelAndHoldAtTime](...args) {
      return this.cancelAndHoldAtTime.apply(this, args);
    }
    [S$4.$cancelScheduledValues](...args) {
      return this.cancelScheduledValues.apply(this, args);
    }
    [S$4.$exponentialRampToValueAtTime](...args) {
      return this.exponentialRampToValueAtTime.apply(this, args);
    }
    [S$4.$linearRampToValueAtTime](...args) {
      return this.linearRampToValueAtTime.apply(this, args);
    }
    [S$4.$setTargetAtTime](...args) {
      return this.setTargetAtTime.apply(this, args);
    }
    [S$4.$setValueAtTime](...args) {
      return this.setValueAtTime.apply(this, args);
    }
    [S$4.$setValueCurveAtTime](...args) {
      return this.setValueCurveAtTime.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.AudioParam, ["web_audio|AudioParam"]);
  dart.setMethodSignature(web_audio.AudioParam, () => dart.global.Object.setPrototypeOf({
    [S$4.$cancelAndHoldAtTime]: T$7.numToAudioParam(),
    [S$4.$cancelScheduledValues]: T$7.numToAudioParam(),
    [S$4.$exponentialRampToValueAtTime]: T$7.numAndnumToAudioParam(),
    [S$4.$linearRampToValueAtTime]: T$7.numAndnumToAudioParam(),
    [S$4.$setTargetAtTime]: T$7.numAndnumAndnumToAudioParam(),
    [S$4.$setValueAtTime]: T$7.numAndnumToAudioParam(),
    [S$4.$setValueCurveAtTime]: T$7.ListOfnumAndnumAndnumToAudioParam()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioParam))));
  dart.setStaticMethodSignature(web_audio.AudioParam, () => ['__']);
  dart.setGetterSignature(web_audio.AudioParam, () => dart.global.Object.setPrototypeOf({
    [S$1.$defaultValue]: T$3.numN(),
    [S$4.$maxValue]: T$3.numN(),
    [S$4.$minValue]: T$3.numN(),
    [S.$value]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioParam))));
  dart.setSetterSignature(web_audio.AudioParam, () => dart.global.Object.setPrototypeOf({[S.$value]: T$3.numN()}, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.AudioParam))));
  dart.setLibraryUri(web_audio.AudioParam, I[178]);
  dart.registerExtension("AudioParam", web_audio.AudioParam);
  const JavaScriptObject_MapBase$36$2 = class JavaScriptObject_MapBase extends _interceptors.JavaScriptObject {};
  (JavaScriptObject_MapBase$36$2.new = function() {
    G.MapBaseOfString$dynamic().new.call(this);
    dart.global.Object.getPrototypeOf(JavaScriptObject_MapBase$36$2).new.call(this);
  }).prototype = JavaScriptObject_MapBase$36$2.prototype;
  dart.applyMixin(JavaScriptObject_MapBase$36$2, G.MapBaseOfString$dynamic());
  web_audio.AudioParamMap = class AudioParamMap extends JavaScriptObject_MapBase$36$2 {
    static ['_#_#tearOff']() {
      return web_audio.AudioParamMap.__();
    }
    [S$4._getItem$1](key) {
      if (key == null) dart.nullFailed(I[177], 451, 24, "key");
      return html_common.convertNativeToDart_Dictionary(this.get(key));
    }
    [$addAll](other) {
      T$2.MapOfString$dynamic()[_as](other);
      if (other == null) dart.nullFailed(I[177], 454, 36, "other");
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$containsValue](value) {
      return this[$values][$any](dart.fn(e => {
        if (e == null) dart.nullFailed(I[177], 458, 52, "e");
        return dart.equals(e, value);
      }, T.MapTobool()));
    }
    [$containsKey](key) {
      return this[S$4._getItem$1](T$.String()[_as](key)) != null;
    }
    [$_get](key) {
      return this[S$4._getItem$1](T$.String()[_as](key));
    }
    [$forEach](f) {
      if (f == null) dart.nullFailed(I[177], 464, 21, "f");
      let entries = this.entries();
      while (true) {
        let entry = entries.next();
        if (entry.done) return;
        f(entry.value[0], html_common.convertNativeToDart_Dictionary(entry.value[1]));
      }
    }
    get [$keys]() {
      let keys = G.JSArrayOfString().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[177], 476, 14, "k");
        return keys[$add](k);
      }, T$2.StringAnddynamicTovoid()));
      return keys;
    }
    get [$values]() {
      let values = G$.JSArrayOfMap().of([]);
      this[$forEach](dart.fn((k, v) => {
        if (k == null) dart.nullFailed(I[177], 482, 14, "k");
        return values[$add](T$.Map()[_as](v));
      }, T$2.StringAnddynamicTovoid()));
      return values;
    }
    get [$length]() {
      return this.size;
    }
    get [$isEmpty]() {
      return this[$length] === 0;
    }
    get [$isNotEmpty]() {
      return !dart.test(this[$isEmpty]);
    }
    [$_set](key, value$) {
      let value = value$;
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[177], 492, 28, "key");
      dart.throw(new core.UnsupportedError.new("Not supported"));
      return value$;
    }
    [$putIfAbsent](key, ifAbsent) {
      T$.String()[_as](key);
      if (key == null) dart.nullFailed(I[177], 496, 30, "key");
      T$.VoidTodynamic()[_as](ifAbsent);
      if (ifAbsent == null) dart.nullFailed(I[177], 496, 43, "ifAbsent");
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$remove](key) {
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
    [$clear]() {
      dart.throw(new core.UnsupportedError.new("Not supported"));
    }
  };
  dart.addRtiResources(web_audio.AudioParamMap, ["web_audio|AudioParamMap"]);
  dart.setMethodSignature(web_audio.AudioParamMap, () => dart.global.Object.setPrototypeOf({
    [S$4._getItem$1]: T.StringToMapN(),
    [$containsValue]: T$.dynamicTobool(),
    [$containsKey]: T$.dynamicTobool(),
    [$_get]: T.dynamicToMapN(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    [$remove]: T$.dynamicToString(),
    [$clear]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioParamMap))));
  dart.setStaticMethodSignature(web_audio.AudioParamMap, () => ['__']);
  dart.setGetterSignature(web_audio.AudioParamMap, () => dart.global.Object.setPrototypeOf({
    [$keys]: T$0.IterableOfString(),
    [$values]: T.IterableOfMap()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioParamMap))));
  dart.setLibraryUri(web_audio.AudioParamMap, I[178]);
  dart.registerExtension("AudioParamMap", web_audio.AudioParamMap);
  web_audio.AudioProcessingEvent = class AudioProcessingEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return web_audio.AudioProcessingEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[177], 519, 39, "type");
      if (eventInitDict == null) dart.nullFailed(I[177], 519, 49, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return web_audio.AudioProcessingEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[177], 519, 39, "type");
      if (eventInitDict == null) dart.nullFailed(I[177], 519, 49, "eventInitDict");
      return web_audio.AudioProcessingEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new AudioProcessingEvent(type, eventInitDict);
    }
    get [S$4.$inputBuffer]() {
      return this.inputBuffer;
    }
    get [S$4.$outputBuffer]() {
      return this.outputBuffer;
    }
    get [S$4.$playbackTime]() {
      return this.playbackTime;
    }
  };
  dart.addRtiResources(web_audio.AudioProcessingEvent, ["web_audio|AudioProcessingEvent"]);
  dart.setStaticMethodSignature(web_audio.AudioProcessingEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(web_audio.AudioProcessingEvent, () => dart.global.Object.setPrototypeOf({
    [S$4.$inputBuffer]: T$7.AudioBufferN(),
    [S$4.$outputBuffer]: T$7.AudioBufferN(),
    [S$4.$playbackTime]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioProcessingEvent))));
  dart.setLibraryUri(web_audio.AudioProcessingEvent, I[178]);
  dart.registerExtension("AudioProcessingEvent", web_audio.AudioProcessingEvent);
  web_audio.AudioTrack = class AudioTrack extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_audio.AudioTrack.__();
    }
    get [S$.$enabled]() {
      return this.enabled;
    }
    set [S$.$enabled](value) {
      this.enabled = value;
    }
    get [S.$id]() {
      return this.id;
    }
    get [S$.$kind]() {
      return this.kind;
    }
    get [S$.$label]() {
      return this.label;
    }
    get [S$2.$language]() {
      return this.language;
    }
    get [S$3.$sourceBuffer]() {
      return this.sourceBuffer;
    }
  };
  dart.addRtiResources(web_audio.AudioTrack, ["web_audio|AudioTrack"]);
  dart.setStaticMethodSignature(web_audio.AudioTrack, () => ['__']);
  dart.setGetterSignature(web_audio.AudioTrack, () => dart.global.Object.setPrototypeOf({
    [S$.$enabled]: T$.boolN(),
    [S.$id]: T$.StringN(),
    [S$.$kind]: T$.StringN(),
    [S$.$label]: T$.StringN(),
    [S$2.$language]: T$.StringN(),
    [S$3.$sourceBuffer]: T$6.SourceBufferN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioTrack))));
  dart.setSetterSignature(web_audio.AudioTrack, () => dart.global.Object.setPrototypeOf({[S$.$enabled]: T$.boolN()}, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.AudioTrack))));
  dart.setLibraryUri(web_audio.AudioTrack, I[178]);
  dart.registerExtension("AudioTrack", web_audio.AudioTrack);
  web_audio.AudioTrackList = class AudioTrackList extends html$.EventTarget {
    static ['_#_#tearOff']() {
      return web_audio.AudioTrackList.__();
    }
    get [$length]() {
      return this.length;
    }
    [S$4.__getter__$1](...args) {
      return this.__getter__.apply(this, args);
    }
    [S$1.$getTrackById](...args) {
      return this.getTrackById.apply(this, args);
    }
    get [S.$onChange]() {
      return web_audio.AudioTrackList.changeEvent.forTarget(this);
    }
  };
  dart.addRtiResources(web_audio.AudioTrackList, ["web_audio|AudioTrackList"]);
  dart.setMethodSignature(web_audio.AudioTrackList, () => dart.global.Object.setPrototypeOf({
    [S$4.__getter__$1]: T$7.intToAudioTrack(),
    [S$1.$getTrackById]: T$7.StringToAudioTrackN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioTrackList))));
  dart.setStaticMethodSignature(web_audio.AudioTrackList, () => ['__']);
  dart.setGetterSignature(web_audio.AudioTrackList, () => dart.global.Object.setPrototypeOf({
    [$length]: T$.intN(),
    [S.$onChange]: T$3.StreamOfEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioTrackList))));
  dart.setLibraryUri(web_audio.AudioTrackList, I[178]);
  dart.setStaticFieldSignature(web_audio.AudioTrackList, () => ['changeEvent']);
  dart.defineLazy(web_audio.AudioTrackList, {
    /*web_audio.AudioTrackList.changeEvent*/get changeEvent() {
      return C[287] || CT.C287;
    }
  }, false);
  dart.registerExtension("AudioTrackList", web_audio.AudioTrackList);
  web_audio.AudioWorkletGlobalScope = class AudioWorkletGlobalScope extends html$.WorkletGlobalScope {
    static ['_#_#tearOff']() {
      return web_audio.AudioWorkletGlobalScope.__();
    }
    get [S$.$currentTime]() {
      return this.currentTime;
    }
    get [S$3.$sampleRate]() {
      return this.sampleRate;
    }
    [S$4.$registerProcessor](...args) {
      return this.registerProcessor.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.AudioWorkletGlobalScope, ["web_audio|AudioWorkletGlobalScope"]);
  dart.setMethodSignature(web_audio.AudioWorkletGlobalScope, () => dart.global.Object.setPrototypeOf({[S$4.$registerProcessor]: T$3.StringAndObjectTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.AudioWorkletGlobalScope))));
  dart.setStaticMethodSignature(web_audio.AudioWorkletGlobalScope, () => ['__']);
  dart.setGetterSignature(web_audio.AudioWorkletGlobalScope, () => dart.global.Object.setPrototypeOf({
    [S$.$currentTime]: T$3.numN(),
    [S$3.$sampleRate]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioWorkletGlobalScope))));
  dart.setLibraryUri(web_audio.AudioWorkletGlobalScope, I[178]);
  dart.registerExtension("AudioWorkletGlobalScope", web_audio.AudioWorkletGlobalScope);
  web_audio.AudioWorkletNode = class AudioWorkletNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.AudioWorkletNode.__();
    }
    static new(context, name, options = null) {
      if (context == null) dart.nullFailed(I[177], 631, 45, "context");
      if (name == null) dart.nullFailed(I[177], 631, 61, "name");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.AudioWorkletNode._create_1(context, name, options_1);
      }
      return web_audio.AudioWorkletNode._create_2(context, name);
    }
    static ['_#new#tearOff'](context, name, options = null) {
      if (context == null) dart.nullFailed(I[177], 631, 45, "context");
      if (name == null) dart.nullFailed(I[177], 631, 61, "name");
      return web_audio.AudioWorkletNode.new(context, name, options);
    }
    static _create_1(context, name, options) {
      return new AudioWorkletNode(context, name, options);
    }
    static _create_2(context, name) {
      return new AudioWorkletNode(context, name);
    }
    get [S$4.$parameters]() {
      return this.parameters;
    }
  };
  dart.addRtiResources(web_audio.AudioWorkletNode, ["web_audio|AudioWorkletNode"]);
  dart.setStaticMethodSignature(web_audio.AudioWorkletNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.AudioWorkletNode, () => dart.global.Object.setPrototypeOf({[S$4.$parameters]: T$7.AudioParamMapN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.AudioWorkletNode))));
  dart.setLibraryUri(web_audio.AudioWorkletNode, I[178]);
  dart.registerExtension("AudioWorkletNode", web_audio.AudioWorkletNode);
  web_audio.AudioWorkletProcessor = class AudioWorkletProcessor extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_audio.AudioWorkletProcessor.__();
    }
  };
  dart.addRtiResources(web_audio.AudioWorkletProcessor, ["web_audio|AudioWorkletProcessor"]);
  dart.setStaticMethodSignature(web_audio.AudioWorkletProcessor, () => ['__']);
  dart.setLibraryUri(web_audio.AudioWorkletProcessor, I[178]);
  dart.registerExtension("AudioWorkletProcessor", web_audio.AudioWorkletProcessor);
  web_audio.BiquadFilterNode = class BiquadFilterNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.BiquadFilterNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 769, 45, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.BiquadFilterNode._create_1(context, options_1);
      }
      return web_audio.BiquadFilterNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 769, 45, "context");
      return web_audio.BiquadFilterNode.new(context, options);
    }
    static _create_1(context, options) {
      return new BiquadFilterNode(context, options);
    }
    static _create_2(context) {
      return new BiquadFilterNode(context);
    }
    get [S$4.$Q]() {
      return this.Q;
    }
    get [S$4.$detune]() {
      return this.detune;
    }
    get [S$4.$frequency]() {
      return this.frequency;
    }
    get [S$4.$gain]() {
      return this.gain;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
    [S$4.$getFrequencyResponse](...args) {
      return this.getFrequencyResponse.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.BiquadFilterNode, ["web_audio|BiquadFilterNode"]);
  dart.setMethodSignature(web_audio.BiquadFilterNode, () => dart.global.Object.setPrototypeOf({[S$4.$getFrequencyResponse]: T$7.Float32ListAndFloat32ListAndFloat32ListTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.BiquadFilterNode))));
  dart.setStaticMethodSignature(web_audio.BiquadFilterNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.BiquadFilterNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$Q]: T$7.AudioParamN(),
    [S$4.$detune]: T$7.AudioParamN(),
    [S$4.$frequency]: T$7.AudioParamN(),
    [S$4.$gain]: T$7.AudioParamN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.BiquadFilterNode))));
  dart.setSetterSignature(web_audio.BiquadFilterNode, () => dart.global.Object.setPrototypeOf({[S.$type]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.BiquadFilterNode))));
  dart.setLibraryUri(web_audio.BiquadFilterNode, I[178]);
  dart.registerExtension("BiquadFilterNode", web_audio.BiquadFilterNode);
  web_audio.ChannelMergerNode = class ChannelMergerNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.ChannelMergerNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 807, 46, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.ChannelMergerNode._create_1(context, options_1);
      }
      return web_audio.ChannelMergerNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 807, 46, "context");
      return web_audio.ChannelMergerNode.new(context, options);
    }
    static _create_1(context, options) {
      return new ChannelMergerNode(context, options);
    }
    static _create_2(context) {
      return new ChannelMergerNode(context);
    }
  };
  dart.addRtiResources(web_audio.ChannelMergerNode, ["web_audio|ChannelMergerNode"]);
  dart.setStaticMethodSignature(web_audio.ChannelMergerNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(web_audio.ChannelMergerNode, I[178]);
  dart.registerExtension("ChannelMergerNode", web_audio.ChannelMergerNode);
  dart.registerExtension("AudioChannelMerger", web_audio.ChannelMergerNode);
  web_audio.ChannelSplitterNode = class ChannelSplitterNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.ChannelSplitterNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 830, 48, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.ChannelSplitterNode._create_1(context, options_1);
      }
      return web_audio.ChannelSplitterNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 830, 48, "context");
      return web_audio.ChannelSplitterNode.new(context, options);
    }
    static _create_1(context, options) {
      return new ChannelSplitterNode(context, options);
    }
    static _create_2(context) {
      return new ChannelSplitterNode(context);
    }
  };
  dart.addRtiResources(web_audio.ChannelSplitterNode, ["web_audio|ChannelSplitterNode"]);
  dart.setStaticMethodSignature(web_audio.ChannelSplitterNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(web_audio.ChannelSplitterNode, I[178]);
  dart.registerExtension("ChannelSplitterNode", web_audio.ChannelSplitterNode);
  dart.registerExtension("AudioChannelSplitter", web_audio.ChannelSplitterNode);
  web_audio.ConstantSourceNode = class ConstantSourceNode$ extends web_audio.AudioScheduledSourceNode {
    static ['_#_#tearOff']() {
      return web_audio.ConstantSourceNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 853, 47, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.ConstantSourceNode._create_1(context, options_1);
      }
      return web_audio.ConstantSourceNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 853, 47, "context");
      return web_audio.ConstantSourceNode.new(context, options);
    }
    static _create_1(context, options) {
      return new ConstantSourceNode(context, options);
    }
    static _create_2(context) {
      return new ConstantSourceNode(context);
    }
    get [S.$offset]() {
      return this.offset;
    }
  };
  dart.addRtiResources(web_audio.ConstantSourceNode, ["web_audio|ConstantSourceNode"]);
  dart.setStaticMethodSignature(web_audio.ConstantSourceNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.ConstantSourceNode, () => dart.global.Object.setPrototypeOf({[S.$offset]: T$7.AudioParamN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.ConstantSourceNode))));
  dart.setLibraryUri(web_audio.ConstantSourceNode, I[178]);
  dart.registerExtension("ConstantSourceNode", web_audio.ConstantSourceNode);
  web_audio.ConvolverNode = class ConvolverNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.ConvolverNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 878, 42, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.ConvolverNode._create_1(context, options_1);
      }
      return web_audio.ConvolverNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 878, 42, "context");
      return web_audio.ConvolverNode.new(context, options);
    }
    static _create_1(context, options) {
      return new ConvolverNode(context, options);
    }
    static _create_2(context) {
      return new ConvolverNode(context);
    }
    get [$buffer]() {
      return this.buffer;
    }
    set [$buffer](value) {
      this.buffer = value;
    }
    get [S$4.$normalize]() {
      return this.normalize;
    }
    set [S$4.$normalize](value) {
      this.normalize = value;
    }
  };
  dart.addRtiResources(web_audio.ConvolverNode, ["web_audio|ConvolverNode"]);
  dart.setStaticMethodSignature(web_audio.ConvolverNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.ConvolverNode, () => dart.global.Object.setPrototypeOf({
    [$buffer]: T$7.AudioBufferN(),
    [S$4.$normalize]: T$.boolN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.ConvolverNode))));
  dart.setSetterSignature(web_audio.ConvolverNode, () => dart.global.Object.setPrototypeOf({
    [$buffer]: T$7.AudioBufferN(),
    [S$4.$normalize]: T$.boolN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.ConvolverNode))));
  dart.setLibraryUri(web_audio.ConvolverNode, I[178]);
  dart.registerExtension("ConvolverNode", web_audio.ConvolverNode);
  web_audio.DelayNode = class DelayNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.DelayNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 909, 38, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.DelayNode._create_1(context, options_1);
      }
      return web_audio.DelayNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 909, 38, "context");
      return web_audio.DelayNode.new(context, options);
    }
    static _create_1(context, options) {
      return new DelayNode(context, options);
    }
    static _create_2(context) {
      return new DelayNode(context);
    }
    get [S$4.$delayTime]() {
      return this.delayTime;
    }
  };
  dart.addRtiResources(web_audio.DelayNode, ["web_audio|DelayNode"]);
  dart.setStaticMethodSignature(web_audio.DelayNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.DelayNode, () => dart.global.Object.setPrototypeOf({[S$4.$delayTime]: T$7.AudioParamN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.DelayNode))));
  dart.setLibraryUri(web_audio.DelayNode, I[178]);
  dart.registerExtension("DelayNode", web_audio.DelayNode);
  web_audio.DynamicsCompressorNode = class DynamicsCompressorNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.DynamicsCompressorNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 934, 51, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.DynamicsCompressorNode._create_1(context, options_1);
      }
      return web_audio.DynamicsCompressorNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 934, 51, "context");
      return web_audio.DynamicsCompressorNode.new(context, options);
    }
    static _create_1(context, options) {
      return new DynamicsCompressorNode(context, options);
    }
    static _create_2(context) {
      return new DynamicsCompressorNode(context);
    }
    get [S$4.$attack]() {
      return this.attack;
    }
    get [S$4.$knee]() {
      return this.knee;
    }
    get [S$4.$ratio]() {
      return this.ratio;
    }
    get [S$4.$reduction]() {
      return this.reduction;
    }
    get [S$4.$release]() {
      return this.release;
    }
    get [S$4.$threshold]() {
      return this.threshold;
    }
  };
  dart.addRtiResources(web_audio.DynamicsCompressorNode, ["web_audio|DynamicsCompressorNode"]);
  dart.setStaticMethodSignature(web_audio.DynamicsCompressorNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.DynamicsCompressorNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$attack]: T$7.AudioParamN(),
    [S$4.$knee]: T$7.AudioParamN(),
    [S$4.$ratio]: T$7.AudioParamN(),
    [S$4.$reduction]: T$3.numN(),
    [S$4.$release]: T$7.AudioParamN(),
    [S$4.$threshold]: T$7.AudioParamN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.DynamicsCompressorNode))));
  dart.setLibraryUri(web_audio.DynamicsCompressorNode, I[178]);
  dart.registerExtension("DynamicsCompressorNode", web_audio.DynamicsCompressorNode);
  web_audio.GainNode = class GainNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.GainNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 972, 37, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.GainNode._create_1(context, options_1);
      }
      return web_audio.GainNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 972, 37, "context");
      return web_audio.GainNode.new(context, options);
    }
    static _create_1(context, options) {
      return new GainNode(context, options);
    }
    static _create_2(context) {
      return new GainNode(context);
    }
    get [S$4.$gain]() {
      return this.gain;
    }
  };
  dart.addRtiResources(web_audio.GainNode, ["web_audio|GainNode"]);
  dart.setStaticMethodSignature(web_audio.GainNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.GainNode, () => dart.global.Object.setPrototypeOf({[S$4.$gain]: T$7.AudioParamN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.GainNode))));
  dart.setLibraryUri(web_audio.GainNode, I[178]);
  dart.registerExtension("GainNode", web_audio.GainNode);
  dart.registerExtension("AudioGainNode", web_audio.GainNode);
  web_audio.IirFilterNode = class IirFilterNode extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.IirFilterNode.__();
    }
    static new(context, options) {
      if (context == null) dart.nullFailed(I[177], 997, 42, "context");
      if (options == null) dart.nullFailed(I[177], 997, 55, "options");
      let options_1 = html_common.convertDartToNative_Dictionary(options);
      return web_audio.IirFilterNode._create_1(context, options_1);
    }
    static ['_#new#tearOff'](context, options) {
      if (context == null) dart.nullFailed(I[177], 997, 42, "context");
      if (options == null) dart.nullFailed(I[177], 997, 55, "options");
      return web_audio.IirFilterNode.new(context, options);
    }
    static _create_1(context, options) {
      return new IIRFilterNode(context, options);
    }
    [S$4.$getFrequencyResponse](...args) {
      return this.getFrequencyResponse.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.IirFilterNode, ["web_audio|IirFilterNode"]);
  dart.setMethodSignature(web_audio.IirFilterNode, () => dart.global.Object.setPrototypeOf({[S$4.$getFrequencyResponse]: T$7.Float32ListAndFloat32ListAndFloat32ListTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.IirFilterNode))));
  dart.setStaticMethodSignature(web_audio.IirFilterNode, () => ['__', 'new', '_create_1']);
  dart.setLibraryUri(web_audio.IirFilterNode, I[178]);
  dart.registerExtension("IIRFilterNode", web_audio.IirFilterNode);
  web_audio.MediaElementAudioSourceNode = class MediaElementAudioSourceNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.MediaElementAudioSourceNode.__();
    }
    static new(context, options) {
      if (context == null) dart.nullFailed(I[177], 1018, 56, "context");
      if (options == null) dart.nullFailed(I[177], 1018, 69, "options");
      let options_1 = html_common.convertDartToNative_Dictionary(options);
      return web_audio.MediaElementAudioSourceNode._create_1(context, options_1);
    }
    static ['_#new#tearOff'](context, options) {
      if (context == null) dart.nullFailed(I[177], 1018, 56, "context");
      if (options == null) dart.nullFailed(I[177], 1018, 69, "options");
      return web_audio.MediaElementAudioSourceNode.new(context, options);
    }
    static _create_1(context, options) {
      return new MediaElementAudioSourceNode(context, options);
    }
    get [S$4.$mediaElement]() {
      return this.mediaElement;
    }
  };
  dart.addRtiResources(web_audio.MediaElementAudioSourceNode, ["web_audio|MediaElementAudioSourceNode"]);
  dart.setStaticMethodSignature(web_audio.MediaElementAudioSourceNode, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(web_audio.MediaElementAudioSourceNode, () => dart.global.Object.setPrototypeOf({[S$4.$mediaElement]: T$7.MediaElementN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.MediaElementAudioSourceNode))));
  dart.setLibraryUri(web_audio.MediaElementAudioSourceNode, I[178]);
  dart.registerExtension("MediaElementAudioSourceNode", web_audio.MediaElementAudioSourceNode);
  web_audio.MediaStreamAudioDestinationNode = class MediaStreamAudioDestinationNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.MediaStreamAudioDestinationNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1041, 60, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.MediaStreamAudioDestinationNode._create_1(context, options_1);
      }
      return web_audio.MediaStreamAudioDestinationNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1041, 60, "context");
      return web_audio.MediaStreamAudioDestinationNode.new(context, options);
    }
    static _create_1(context, options) {
      return new MediaStreamAudioDestinationNode(context, options);
    }
    static _create_2(context) {
      return new MediaStreamAudioDestinationNode(context);
    }
    get [S$1.$stream]() {
      return this.stream;
    }
  };
  dart.addRtiResources(web_audio.MediaStreamAudioDestinationNode, ["web_audio|MediaStreamAudioDestinationNode"]);
  dart.setStaticMethodSignature(web_audio.MediaStreamAudioDestinationNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.MediaStreamAudioDestinationNode, () => dart.global.Object.setPrototypeOf({[S$1.$stream]: T$4.MediaStreamN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.MediaStreamAudioDestinationNode))));
  dart.setLibraryUri(web_audio.MediaStreamAudioDestinationNode, I[178]);
  dart.registerExtension("MediaStreamAudioDestinationNode", web_audio.MediaStreamAudioDestinationNode);
  web_audio.MediaStreamAudioSourceNode = class MediaStreamAudioSourceNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.MediaStreamAudioSourceNode.__();
    }
    static new(context, options) {
      if (context == null) dart.nullFailed(I[177], 1072, 55, "context");
      if (options == null) dart.nullFailed(I[177], 1072, 68, "options");
      let options_1 = html_common.convertDartToNative_Dictionary(options);
      return web_audio.MediaStreamAudioSourceNode._create_1(context, options_1);
    }
    static ['_#new#tearOff'](context, options) {
      if (context == null) dart.nullFailed(I[177], 1072, 55, "context");
      if (options == null) dart.nullFailed(I[177], 1072, 68, "options");
      return web_audio.MediaStreamAudioSourceNode.new(context, options);
    }
    static _create_1(context, options) {
      return new MediaStreamAudioSourceNode(context, options);
    }
    get [S$4.$mediaStream]() {
      return this.mediaStream;
    }
  };
  dart.addRtiResources(web_audio.MediaStreamAudioSourceNode, ["web_audio|MediaStreamAudioSourceNode"]);
  dart.setStaticMethodSignature(web_audio.MediaStreamAudioSourceNode, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(web_audio.MediaStreamAudioSourceNode, () => dart.global.Object.setPrototypeOf({[S$4.$mediaStream]: T$4.MediaStreamN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.MediaStreamAudioSourceNode))));
  dart.setLibraryUri(web_audio.MediaStreamAudioSourceNode, I[178]);
  dart.registerExtension("MediaStreamAudioSourceNode", web_audio.MediaStreamAudioSourceNode);
  web_audio.OfflineAudioCompletionEvent = class OfflineAudioCompletionEvent$ extends html$.Event {
    static ['_#_#tearOff']() {
      return web_audio.OfflineAudioCompletionEvent.__();
    }
    static new(type, eventInitDict) {
      if (type == null) dart.nullFailed(I[177], 1095, 46, "type");
      if (eventInitDict == null) dart.nullFailed(I[177], 1095, 56, "eventInitDict");
      let eventInitDict_1 = html_common.convertDartToNative_Dictionary(eventInitDict);
      return web_audio.OfflineAudioCompletionEvent._create_1(type, eventInitDict_1);
    }
    static ['_#new#tearOff'](type, eventInitDict) {
      if (type == null) dart.nullFailed(I[177], 1095, 46, "type");
      if (eventInitDict == null) dart.nullFailed(I[177], 1095, 56, "eventInitDict");
      return web_audio.OfflineAudioCompletionEvent.new(type, eventInitDict);
    }
    static _create_1(type, eventInitDict) {
      return new OfflineAudioCompletionEvent(type, eventInitDict);
    }
    get [S$4.$renderedBuffer]() {
      return this.renderedBuffer;
    }
  };
  dart.addRtiResources(web_audio.OfflineAudioCompletionEvent, ["web_audio|OfflineAudioCompletionEvent"]);
  dart.setStaticMethodSignature(web_audio.OfflineAudioCompletionEvent, () => ['__', 'new', '_create_1']);
  dart.setGetterSignature(web_audio.OfflineAudioCompletionEvent, () => dart.global.Object.setPrototypeOf({[S$4.$renderedBuffer]: T$7.AudioBufferN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.OfflineAudioCompletionEvent))));
  dart.setLibraryUri(web_audio.OfflineAudioCompletionEvent, I[178]);
  dart.registerExtension("OfflineAudioCompletionEvent", web_audio.OfflineAudioCompletionEvent);
  web_audio.OfflineAudioContext = class OfflineAudioContext$ extends web_audio.BaseAudioContext {
    static ['_#_#tearOff']() {
      return web_audio.OfflineAudioContext.__();
    }
    static new(numberOfChannels_OR_options, numberOfFrames = null, sampleRate = null) {
      if (typeof sampleRate == 'number' && T$.int()[_is](numberOfFrames) && T$.int()[_is](numberOfChannels_OR_options)) {
        return web_audio.OfflineAudioContext._create_1(numberOfChannels_OR_options, numberOfFrames, sampleRate);
      }
      if (T$.Map()[_is](numberOfChannels_OR_options) && numberOfFrames == null && sampleRate == null) {
        let options_1 = html_common.convertDartToNative_Dictionary(numberOfChannels_OR_options);
        return web_audio.OfflineAudioContext._create_2(options_1);
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    static ['_#new#tearOff'](numberOfChannels_OR_options, numberOfFrames = null, sampleRate = null) {
      return web_audio.OfflineAudioContext.new(numberOfChannels_OR_options, numberOfFrames, sampleRate);
    }
    static _create_1(numberOfChannels_OR_options, numberOfFrames, sampleRate) {
      return new OfflineAudioContext(numberOfChannels_OR_options, numberOfFrames, sampleRate);
    }
    static _create_2(numberOfChannels_OR_options) {
      return new OfflineAudioContext(numberOfChannels_OR_options);
    }
    get [$length]() {
      return this.length;
    }
    [S$4.$startRendering]() {
      return js_util.promiseToFuture(T$7.AudioBuffer(), this.startRendering());
    }
    [S$4.$suspendFor](suspendTime) {
      if (suspendTime == null) dart.nullFailed(I[177], 1150, 25, "suspendTime");
      return js_util.promiseToFuture(T$.dynamic(), this.suspend(suspendTime));
    }
  };
  dart.addRtiResources(web_audio.OfflineAudioContext, ["web_audio|OfflineAudioContext"]);
  dart.setMethodSignature(web_audio.OfflineAudioContext, () => dart.global.Object.setPrototypeOf({
    [S$4.$startRendering]: T$7.VoidToFutureOfAudioBuffer(),
    [S$4.$suspendFor]: T$7.numToFuture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.OfflineAudioContext))));
  dart.setStaticMethodSignature(web_audio.OfflineAudioContext, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.OfflineAudioContext, () => dart.global.Object.setPrototypeOf({[$length]: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.OfflineAudioContext))));
  dart.setLibraryUri(web_audio.OfflineAudioContext, I[178]);
  dart.registerExtension("OfflineAudioContext", web_audio.OfflineAudioContext);
  web_audio.OscillatorNode = class OscillatorNode$ extends web_audio.AudioScheduledSourceNode {
    static ['_#_#tearOff']() {
      return web_audio.OscillatorNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1164, 43, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.OscillatorNode._create_1(context, options_1);
      }
      return web_audio.OscillatorNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1164, 43, "context");
      return web_audio.OscillatorNode.new(context, options);
    }
    static _create_1(context, options) {
      return new OscillatorNode(context, options);
    }
    static _create_2(context) {
      return new OscillatorNode(context);
    }
    get [S$4.$detune]() {
      return this.detune;
    }
    get [S$4.$frequency]() {
      return this.frequency;
    }
    get [S.$type]() {
      return this.type;
    }
    set [S.$type](value) {
      this.type = value;
    }
    [S$4.$setPeriodicWave](...args) {
      return this.setPeriodicWave.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.OscillatorNode, ["web_audio|OscillatorNode"]);
  dart.setMethodSignature(web_audio.OscillatorNode, () => dart.global.Object.setPrototypeOf({[S$4.$setPeriodicWave]: T$7.PeriodicWaveTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.OscillatorNode))));
  dart.setStaticMethodSignature(web_audio.OscillatorNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.OscillatorNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$detune]: T$7.AudioParamN(),
    [S$4.$frequency]: T$7.AudioParamN(),
    [S.$type]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.OscillatorNode))));
  dart.setSetterSignature(web_audio.OscillatorNode, () => dart.global.Object.setPrototypeOf({[S.$type]: T$.StringN()}, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.OscillatorNode))));
  dart.setLibraryUri(web_audio.OscillatorNode, I[178]);
  dart.registerExtension("OscillatorNode", web_audio.OscillatorNode);
  dart.registerExtension("Oscillator", web_audio.OscillatorNode);
  web_audio.PannerNode = class PannerNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.PannerNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1197, 39, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.PannerNode._create_1(context, options_1);
      }
      return web_audio.PannerNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1197, 39, "context");
      return web_audio.PannerNode.new(context, options);
    }
    static _create_1(context, options) {
      return new PannerNode(context, options);
    }
    static _create_2(context) {
      return new PannerNode(context);
    }
    get [S$4.$coneInnerAngle]() {
      return this.coneInnerAngle;
    }
    set [S$4.$coneInnerAngle](value) {
      this.coneInnerAngle = value;
    }
    get [S$4.$coneOuterAngle]() {
      return this.coneOuterAngle;
    }
    set [S$4.$coneOuterAngle](value) {
      this.coneOuterAngle = value;
    }
    get [S$4.$coneOuterGain]() {
      return this.coneOuterGain;
    }
    set [S$4.$coneOuterGain](value) {
      this.coneOuterGain = value;
    }
    get [S$4.$distanceModel]() {
      return this.distanceModel;
    }
    set [S$4.$distanceModel](value) {
      this.distanceModel = value;
    }
    get [S$4.$maxDistance]() {
      return this.maxDistance;
    }
    set [S$4.$maxDistance](value) {
      this.maxDistance = value;
    }
    get [S$4.$orientationX]() {
      return this.orientationX;
    }
    get [S$4.$orientationY]() {
      return this.orientationY;
    }
    get [S$4.$orientationZ]() {
      return this.orientationZ;
    }
    get [S$4.$panningModel]() {
      return this.panningModel;
    }
    set [S$4.$panningModel](value) {
      this.panningModel = value;
    }
    get [S$2.$positionX]() {
      return this.positionX;
    }
    get [S$2.$positionY]() {
      return this.positionY;
    }
    get [S$4.$positionZ]() {
      return this.positionZ;
    }
    get [S$4.$refDistance]() {
      return this.refDistance;
    }
    set [S$4.$refDistance](value) {
      this.refDistance = value;
    }
    get [S$4.$rolloffFactor]() {
      return this.rolloffFactor;
    }
    set [S$4.$rolloffFactor](value) {
      this.rolloffFactor = value;
    }
    [S$4.$setOrientation](...args) {
      return this.setOrientation.apply(this, args);
    }
    [S$2.$setPosition](...args) {
      return this.setPosition.apply(this, args);
    }
  };
  dart.addRtiResources(web_audio.PannerNode, ["web_audio|PannerNode"]);
  dart.setMethodSignature(web_audio.PannerNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$setOrientation]: T$7.numAndnumAndnumTovoid(),
    [S$2.$setPosition]: T$7.numAndnumAndnumTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.PannerNode))));
  dart.setStaticMethodSignature(web_audio.PannerNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.PannerNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$coneInnerAngle]: T$3.numN(),
    [S$4.$coneOuterAngle]: T$3.numN(),
    [S$4.$coneOuterGain]: T$3.numN(),
    [S$4.$distanceModel]: T$.StringN(),
    [S$4.$maxDistance]: T$3.numN(),
    [S$4.$orientationX]: T$7.AudioParamN(),
    [S$4.$orientationY]: T$7.AudioParamN(),
    [S$4.$orientationZ]: T$7.AudioParamN(),
    [S$4.$panningModel]: T$.StringN(),
    [S$2.$positionX]: T$7.AudioParamN(),
    [S$2.$positionY]: T$7.AudioParamN(),
    [S$4.$positionZ]: T$7.AudioParamN(),
    [S$4.$refDistance]: T$3.numN(),
    [S$4.$rolloffFactor]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.PannerNode))));
  dart.setSetterSignature(web_audio.PannerNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$coneInnerAngle]: T$3.numN(),
    [S$4.$coneOuterAngle]: T$3.numN(),
    [S$4.$coneOuterGain]: T$3.numN(),
    [S$4.$distanceModel]: T$.StringN(),
    [S$4.$maxDistance]: T$3.numN(),
    [S$4.$panningModel]: T$.StringN(),
    [S$4.$refDistance]: T$3.numN(),
    [S$4.$rolloffFactor]: T$3.numN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.PannerNode))));
  dart.setLibraryUri(web_audio.PannerNode, I[178]);
  dart.registerExtension("PannerNode", web_audio.PannerNode);
  dart.registerExtension("AudioPannerNode", web_audio.PannerNode);
  dart.registerExtension("webkitAudioPannerNode", web_audio.PannerNode);
  web_audio.PeriodicWave = class PeriodicWave$ extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_audio.PeriodicWave.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1268, 41, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.PeriodicWave._create_1(context, options_1);
      }
      return web_audio.PeriodicWave._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1268, 41, "context");
      return web_audio.PeriodicWave.new(context, options);
    }
    static _create_1(context, options) {
      return new PeriodicWave(context, options);
    }
    static _create_2(context) {
      return new PeriodicWave(context);
    }
  };
  dart.addRtiResources(web_audio.PeriodicWave, ["web_audio|PeriodicWave"]);
  dart.setStaticMethodSignature(web_audio.PeriodicWave, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setLibraryUri(web_audio.PeriodicWave, I[178]);
  dart.registerExtension("PeriodicWave", web_audio.PeriodicWave);
  web_audio.ScriptProcessorNode = class ScriptProcessorNode extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.ScriptProcessorNode.__();
    }
    get [S$4.$bufferSize]() {
      return this.bufferSize;
    }
    [S$4.$setEventListener](...args) {
      return this.setEventListener.apply(this, args);
    }
    get [S$4.$onAudioProcess]() {
      return web_audio.ScriptProcessorNode.audioProcessEvent.forTarget(this);
    }
  };
  dart.addRtiResources(web_audio.ScriptProcessorNode, ["web_audio|ScriptProcessorNode"]);
  dart.setMethodSignature(web_audio.ScriptProcessorNode, () => dart.global.Object.setPrototypeOf({[S$4.$setEventListener]: T$7.FnTovoid$34()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_audio.ScriptProcessorNode))));
  dart.setStaticMethodSignature(web_audio.ScriptProcessorNode, () => ['__']);
  dart.setGetterSignature(web_audio.ScriptProcessorNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$bufferSize]: T$.intN(),
    [S$4.$onAudioProcess]: T$7.StreamOfAudioProcessingEvent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.ScriptProcessorNode))));
  dart.setLibraryUri(web_audio.ScriptProcessorNode, I[178]);
  dart.setStaticFieldSignature(web_audio.ScriptProcessorNode, () => ['audioProcessEvent']);
  dart.defineLazy(web_audio.ScriptProcessorNode, {
    /*web_audio.ScriptProcessorNode.audioProcessEvent*/get audioProcessEvent() {
      return C[470] || CT.C470;
    }
  }, false);
  dart.registerExtension("ScriptProcessorNode", web_audio.ScriptProcessorNode);
  dart.registerExtension("JavaScriptAudioNode", web_audio.ScriptProcessorNode);
  web_audio.StereoPannerNode = class StereoPannerNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.StereoPannerNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1326, 45, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.StereoPannerNode._create_1(context, options_1);
      }
      return web_audio.StereoPannerNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1326, 45, "context");
      return web_audio.StereoPannerNode.new(context, options);
    }
    static _create_1(context, options) {
      return new StereoPannerNode(context, options);
    }
    static _create_2(context) {
      return new StereoPannerNode(context);
    }
    get [S$4.$pan]() {
      return this.pan;
    }
  };
  dart.addRtiResources(web_audio.StereoPannerNode, ["web_audio|StereoPannerNode"]);
  dart.setStaticMethodSignature(web_audio.StereoPannerNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.StereoPannerNode, () => dart.global.Object.setPrototypeOf({[S$4.$pan]: T$7.AudioParamN()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.StereoPannerNode))));
  dart.setLibraryUri(web_audio.StereoPannerNode, I[178]);
  dart.registerExtension("StereoPannerNode", web_audio.StereoPannerNode);
  web_audio.WaveShaperNode = class WaveShaperNode$ extends web_audio.AudioNode {
    static ['_#_#tearOff']() {
      return web_audio.WaveShaperNode.__();
    }
    static new(context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1351, 43, "context");
      if (options != null) {
        let options_1 = html_common.convertDartToNative_Dictionary(options);
        return web_audio.WaveShaperNode._create_1(context, options_1);
      }
      return web_audio.WaveShaperNode._create_2(context);
    }
    static ['_#new#tearOff'](context, options = null) {
      if (context == null) dart.nullFailed(I[177], 1351, 43, "context");
      return web_audio.WaveShaperNode.new(context, options);
    }
    static _create_1(context, options) {
      return new WaveShaperNode(context, options);
    }
    static _create_2(context) {
      return new WaveShaperNode(context);
    }
    get [S$4.$curve]() {
      return this.curve;
    }
    set [S$4.$curve](value) {
      this.curve = value;
    }
    get [S$4.$oversample]() {
      return this.oversample;
    }
    set [S$4.$oversample](value) {
      this.oversample = value;
    }
  };
  dart.addRtiResources(web_audio.WaveShaperNode, ["web_audio|WaveShaperNode"]);
  dart.setStaticMethodSignature(web_audio.WaveShaperNode, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_audio.WaveShaperNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$curve]: T$5.Float32ListN(),
    [S$4.$oversample]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_audio.WaveShaperNode))));
  dart.setSetterSignature(web_audio.WaveShaperNode, () => dart.global.Object.setPrototypeOf({
    [S$4.$curve]: T$5.Float32ListN(),
    [S$4.$oversample]: T$.StringN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(web_audio.WaveShaperNode))));
  dart.setLibraryUri(web_audio.WaveShaperNode, I[178]);
  dart.registerExtension("WaveShaperNode", web_audio.WaveShaperNode);
  web_gl.ActiveInfo = class ActiveInfo extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ActiveInfo.__();
    }
    get [$name]() {
      return this.name;
    }
    get [S$.$size]() {
      return this.size;
    }
    get [S.$type]() {
      return this.type;
    }
  };
  dart.addRtiResources(web_gl.ActiveInfo, ["web_gl|ActiveInfo"]);
  dart.setStaticMethodSignature(web_gl.ActiveInfo, () => ['__']);
  dart.setGetterSignature(web_gl.ActiveInfo, () => dart.global.Object.setPrototypeOf({
    [$name]: T$.String(),
    [S$.$size]: T$.int(),
    [S.$type]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_gl.ActiveInfo))));
  dart.setLibraryUri(web_gl.ActiveInfo, I[179]);
  dart.registerExtension("WebGLActiveInfo", web_gl.ActiveInfo);
  web_gl.AngleInstancedArrays = class AngleInstancedArrays extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.AngleInstancedArrays.__();
    }
    [S$4.$drawArraysInstancedAngle](...args) {
      return this.drawArraysInstancedANGLE.apply(this, args);
    }
    [S$4.$drawElementsInstancedAngle](...args) {
      return this.drawElementsInstancedANGLE.apply(this, args);
    }
    [S$4.$vertexAttribDivisorAngle](...args) {
      return this.vertexAttribDivisorANGLE.apply(this, args);
    }
  };
  dart.addRtiResources(web_gl.AngleInstancedArrays, ["web_gl|AngleInstancedArrays"]);
  dart.setMethodSignature(web_gl.AngleInstancedArrays, () => dart.global.Object.setPrototypeOf({
    [S$4.$drawArraysInstancedAngle]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$drawElementsInstancedAngle]: T$7.intAndintAndint__Tovoid$2(),
    [S$4.$vertexAttribDivisorAngle]: T$.intAndintTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.AngleInstancedArrays))));
  dart.setStaticMethodSignature(web_gl.AngleInstancedArrays, () => ['__']);
  dart.setLibraryUri(web_gl.AngleInstancedArrays, I[179]);
  dart.setStaticFieldSignature(web_gl.AngleInstancedArrays, () => ['VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE']);
  dart.defineLazy(web_gl.AngleInstancedArrays, {
    /*web_gl.AngleInstancedArrays.VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE*/get VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE() {
      return 35070;
    }
  }, false);
  dart.registerExtension("ANGLEInstancedArrays", web_gl.AngleInstancedArrays);
  dart.registerExtension("ANGLE_instanced_arrays", web_gl.AngleInstancedArrays);
  web_gl.Buffer = class Buffer extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Buffer.__();
    }
  };
  dart.addRtiResources(web_gl.Buffer, ["web_gl|Buffer"]);
  dart.setStaticMethodSignature(web_gl.Buffer, () => ['__']);
  dart.setLibraryUri(web_gl.Buffer, I[179]);
  dart.registerExtension("WebGLBuffer", web_gl.Buffer);
  web_gl.Canvas = class Canvas extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Canvas.__();
    }
    get [S$.$canvas]() {
      return this.canvas;
    }
    get [S$4.$offscreenCanvas]() {
      return this.canvas;
    }
  };
  dart.addRtiResources(web_gl.Canvas, ["web_gl|Canvas"]);
  dart.setStaticMethodSignature(web_gl.Canvas, () => ['__']);
  dart.setGetterSignature(web_gl.Canvas, () => dart.global.Object.setPrototypeOf({
    [S$.$canvas]: T$4.CanvasElement(),
    [S$4.$offscreenCanvas]: T.OffscreenCanvasN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_gl.Canvas))));
  dart.setLibraryUri(web_gl.Canvas, I[179]);
  dart.registerExtension("WebGLCanvas", web_gl.Canvas);
  web_gl.ColorBufferFloat = class ColorBufferFloat extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ColorBufferFloat.__();
    }
  };
  dart.addRtiResources(web_gl.ColorBufferFloat, ["web_gl|ColorBufferFloat"]);
  dart.setStaticMethodSignature(web_gl.ColorBufferFloat, () => ['__']);
  dart.setLibraryUri(web_gl.ColorBufferFloat, I[179]);
  dart.registerExtension("WebGLColorBufferFloat", web_gl.ColorBufferFloat);
  web_gl.CompressedTextureAstc = class CompressedTextureAstc extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.CompressedTextureAstc.__();
    }
  };
  dart.addRtiResources(web_gl.CompressedTextureAstc, ["web_gl|CompressedTextureAstc"]);
  dart.setStaticMethodSignature(web_gl.CompressedTextureAstc, () => ['__']);
  dart.setLibraryUri(web_gl.CompressedTextureAstc, I[179]);
  dart.setStaticFieldSignature(web_gl.CompressedTextureAstc, () => ['COMPRESSED_RGBA_ASTC_10x10_KHR', 'COMPRESSED_RGBA_ASTC_10x5_KHR', 'COMPRESSED_RGBA_ASTC_10x6_KHR', 'COMPRESSED_RGBA_ASTC_10x8_KHR', 'COMPRESSED_RGBA_ASTC_12x10_KHR', 'COMPRESSED_RGBA_ASTC_12x12_KHR', 'COMPRESSED_RGBA_ASTC_4x4_KHR', 'COMPRESSED_RGBA_ASTC_5x4_KHR', 'COMPRESSED_RGBA_ASTC_5x5_KHR', 'COMPRESSED_RGBA_ASTC_6x5_KHR', 'COMPRESSED_RGBA_ASTC_6x6_KHR', 'COMPRESSED_RGBA_ASTC_8x5_KHR', 'COMPRESSED_RGBA_ASTC_8x6_KHR', 'COMPRESSED_RGBA_ASTC_8x8_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR', 'COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR']);
  dart.defineLazy(web_gl.CompressedTextureAstc, {
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_10x10_KHR*/get COMPRESSED_RGBA_ASTC_10x10_KHR() {
      return 37819;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_10x5_KHR*/get COMPRESSED_RGBA_ASTC_10x5_KHR() {
      return 37816;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_10x6_KHR*/get COMPRESSED_RGBA_ASTC_10x6_KHR() {
      return 37817;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_10x8_KHR*/get COMPRESSED_RGBA_ASTC_10x8_KHR() {
      return 37818;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_12x10_KHR*/get COMPRESSED_RGBA_ASTC_12x10_KHR() {
      return 37820;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_12x12_KHR*/get COMPRESSED_RGBA_ASTC_12x12_KHR() {
      return 37821;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_4x4_KHR*/get COMPRESSED_RGBA_ASTC_4x4_KHR() {
      return 37808;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_5x4_KHR*/get COMPRESSED_RGBA_ASTC_5x4_KHR() {
      return 37809;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_5x5_KHR*/get COMPRESSED_RGBA_ASTC_5x5_KHR() {
      return 37810;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_6x5_KHR*/get COMPRESSED_RGBA_ASTC_6x5_KHR() {
      return 37811;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_6x6_KHR*/get COMPRESSED_RGBA_ASTC_6x6_KHR() {
      return 37812;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_8x5_KHR*/get COMPRESSED_RGBA_ASTC_8x5_KHR() {
      return 37813;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_8x6_KHR*/get COMPRESSED_RGBA_ASTC_8x6_KHR() {
      return 37814;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_RGBA_ASTC_8x8_KHR*/get COMPRESSED_RGBA_ASTC_8x8_KHR() {
      return 37815;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR() {
      return 37851;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR() {
      return 37848;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR() {
      return 37849;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR() {
      return 37850;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR() {
      return 37852;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR() {
      return 37853;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR() {
      return 37840;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR() {
      return 37841;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR() {
      return 37842;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR() {
      return 37843;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR() {
      return 37844;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR() {
      return 37845;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR() {
      return 37846;
    },
    /*web_gl.CompressedTextureAstc.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR*/get COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR() {
      return 37847;
    }
  }, false);
  dart.registerExtension("WebGLCompressedTextureASTC", web_gl.CompressedTextureAstc);
  web_gl.CompressedTextureAtc = class CompressedTextureAtc extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.CompressedTextureAtc.__();
    }
  };
  dart.addRtiResources(web_gl.CompressedTextureAtc, ["web_gl|CompressedTextureAtc"]);
  dart.setStaticMethodSignature(web_gl.CompressedTextureAtc, () => ['__']);
  dart.setLibraryUri(web_gl.CompressedTextureAtc, I[179]);
  dart.setStaticFieldSignature(web_gl.CompressedTextureAtc, () => ['COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL', 'COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL', 'COMPRESSED_RGB_ATC_WEBGL']);
  dart.defineLazy(web_gl.CompressedTextureAtc, {
    /*web_gl.CompressedTextureAtc.COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL*/get COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL() {
      return 35987;
    },
    /*web_gl.CompressedTextureAtc.COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL*/get COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL() {
      return 34798;
    },
    /*web_gl.CompressedTextureAtc.COMPRESSED_RGB_ATC_WEBGL*/get COMPRESSED_RGB_ATC_WEBGL() {
      return 35986;
    }
  }, false);
  dart.registerExtension("WebGLCompressedTextureATC", web_gl.CompressedTextureAtc);
  dart.registerExtension("WEBGL_compressed_texture_atc", web_gl.CompressedTextureAtc);
  web_gl.CompressedTextureETC1 = class CompressedTextureETC1 extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.CompressedTextureETC1.__();
    }
  };
  dart.addRtiResources(web_gl.CompressedTextureETC1, ["web_gl|CompressedTextureETC1"]);
  dart.setStaticMethodSignature(web_gl.CompressedTextureETC1, () => ['__']);
  dart.setLibraryUri(web_gl.CompressedTextureETC1, I[179]);
  dart.setStaticFieldSignature(web_gl.CompressedTextureETC1, () => ['COMPRESSED_RGB_ETC1_WEBGL']);
  dart.defineLazy(web_gl.CompressedTextureETC1, {
    /*web_gl.CompressedTextureETC1.COMPRESSED_RGB_ETC1_WEBGL*/get COMPRESSED_RGB_ETC1_WEBGL() {
      return 36196;
    }
  }, false);
  dart.registerExtension("WebGLCompressedTextureETC1", web_gl.CompressedTextureETC1);
  dart.registerExtension("WEBGL_compressed_texture_etc1", web_gl.CompressedTextureETC1);
  web_gl.CompressedTextureEtc = class CompressedTextureEtc extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.CompressedTextureEtc.__();
    }
  };
  dart.addRtiResources(web_gl.CompressedTextureEtc, ["web_gl|CompressedTextureEtc"]);
  dart.setStaticMethodSignature(web_gl.CompressedTextureEtc, () => ['__']);
  dart.setLibraryUri(web_gl.CompressedTextureEtc, I[179]);
  dart.setStaticFieldSignature(web_gl.CompressedTextureEtc, () => ['COMPRESSED_R11_EAC', 'COMPRESSED_RG11_EAC', 'COMPRESSED_RGB8_ETC2', 'COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2', 'COMPRESSED_RGBA8_ETC2_EAC', 'COMPRESSED_SIGNED_R11_EAC', 'COMPRESSED_SIGNED_RG11_EAC', 'COMPRESSED_SRGB8_ALPHA8_ETC2_EAC', 'COMPRESSED_SRGB8_ETC2', 'COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2']);
  dart.defineLazy(web_gl.CompressedTextureEtc, {
    /*web_gl.CompressedTextureEtc.COMPRESSED_R11_EAC*/get COMPRESSED_R11_EAC() {
      return 37488;
    },
    /*web_gl.CompressedTextureEtc.COMPRESSED_RG11_EAC*/get COMPRESSED_RG11_EAC() {
      return 37490;
    },
    /*web_gl.CompressedTextureEtc.COMPRESSED_RGB8_ETC2*/get COMPRESSED_RGB8_ETC2() {
      return 37492;
    },
    /*web_gl.CompressedTextureEtc.COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2*/get COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2() {
      return 37494;
    },
    /*web_gl.CompressedTextureEtc.COMPRESSED_RGBA8_ETC2_EAC*/get COMPRESSED_RGBA8_ETC2_EAC() {
      return 37496;
    },
    /*web_gl.CompressedTextureEtc.COMPRESSED_SIGNED_R11_EAC*/get COMPRESSED_SIGNED_R11_EAC() {
      return 37489;
    },
    /*web_gl.CompressedTextureEtc.COMPRESSED_SIGNED_RG11_EAC*/get COMPRESSED_SIGNED_RG11_EAC() {
      return 37491;
    },
    /*web_gl.CompressedTextureEtc.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC*/get COMPRESSED_SRGB8_ALPHA8_ETC2_EAC() {
      return 37497;
    },
    /*web_gl.CompressedTextureEtc.COMPRESSED_SRGB8_ETC2*/get COMPRESSED_SRGB8_ETC2() {
      return 37493;
    },
    /*web_gl.CompressedTextureEtc.COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2*/get COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2() {
      return 37495;
    }
  }, false);
  dart.registerExtension("WebGLCompressedTextureETC", web_gl.CompressedTextureEtc);
  web_gl.CompressedTexturePvrtc = class CompressedTexturePvrtc extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.CompressedTexturePvrtc.__();
    }
  };
  dart.addRtiResources(web_gl.CompressedTexturePvrtc, ["web_gl|CompressedTexturePvrtc"]);
  dart.setStaticMethodSignature(web_gl.CompressedTexturePvrtc, () => ['__']);
  dart.setLibraryUri(web_gl.CompressedTexturePvrtc, I[179]);
  dart.setStaticFieldSignature(web_gl.CompressedTexturePvrtc, () => ['COMPRESSED_RGBA_PVRTC_2BPPV1_IMG', 'COMPRESSED_RGBA_PVRTC_4BPPV1_IMG', 'COMPRESSED_RGB_PVRTC_2BPPV1_IMG', 'COMPRESSED_RGB_PVRTC_4BPPV1_IMG']);
  dart.defineLazy(web_gl.CompressedTexturePvrtc, {
    /*web_gl.CompressedTexturePvrtc.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG*/get COMPRESSED_RGBA_PVRTC_2BPPV1_IMG() {
      return 35843;
    },
    /*web_gl.CompressedTexturePvrtc.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG*/get COMPRESSED_RGBA_PVRTC_4BPPV1_IMG() {
      return 35842;
    },
    /*web_gl.CompressedTexturePvrtc.COMPRESSED_RGB_PVRTC_2BPPV1_IMG*/get COMPRESSED_RGB_PVRTC_2BPPV1_IMG() {
      return 35841;
    },
    /*web_gl.CompressedTexturePvrtc.COMPRESSED_RGB_PVRTC_4BPPV1_IMG*/get COMPRESSED_RGB_PVRTC_4BPPV1_IMG() {
      return 35840;
    }
  }, false);
  dart.registerExtension("WebGLCompressedTexturePVRTC", web_gl.CompressedTexturePvrtc);
  dart.registerExtension("WEBGL_compressed_texture_pvrtc", web_gl.CompressedTexturePvrtc);
  web_gl.CompressedTextureS3TC = class CompressedTextureS3TC extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.CompressedTextureS3TC.__();
    }
  };
  dart.addRtiResources(web_gl.CompressedTextureS3TC, ["web_gl|CompressedTextureS3TC"]);
  dart.setStaticMethodSignature(web_gl.CompressedTextureS3TC, () => ['__']);
  dart.setLibraryUri(web_gl.CompressedTextureS3TC, I[179]);
  dart.setStaticFieldSignature(web_gl.CompressedTextureS3TC, () => ['COMPRESSED_RGBA_S3TC_DXT1_EXT', 'COMPRESSED_RGBA_S3TC_DXT3_EXT', 'COMPRESSED_RGBA_S3TC_DXT5_EXT', 'COMPRESSED_RGB_S3TC_DXT1_EXT']);
  dart.defineLazy(web_gl.CompressedTextureS3TC, {
    /*web_gl.CompressedTextureS3TC.COMPRESSED_RGBA_S3TC_DXT1_EXT*/get COMPRESSED_RGBA_S3TC_DXT1_EXT() {
      return 33777;
    },
    /*web_gl.CompressedTextureS3TC.COMPRESSED_RGBA_S3TC_DXT3_EXT*/get COMPRESSED_RGBA_S3TC_DXT3_EXT() {
      return 33778;
    },
    /*web_gl.CompressedTextureS3TC.COMPRESSED_RGBA_S3TC_DXT5_EXT*/get COMPRESSED_RGBA_S3TC_DXT5_EXT() {
      return 33779;
    },
    /*web_gl.CompressedTextureS3TC.COMPRESSED_RGB_S3TC_DXT1_EXT*/get COMPRESSED_RGB_S3TC_DXT1_EXT() {
      return 33776;
    }
  }, false);
  dart.registerExtension("WebGLCompressedTextureS3TC", web_gl.CompressedTextureS3TC);
  dart.registerExtension("WEBGL_compressed_texture_s3tc", web_gl.CompressedTextureS3TC);
  web_gl.CompressedTextureS3TCsRgb = class CompressedTextureS3TCsRgb extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.CompressedTextureS3TCsRgb.__();
    }
  };
  dart.addRtiResources(web_gl.CompressedTextureS3TCsRgb, ["web_gl|CompressedTextureS3TCsRgb"]);
  dart.setStaticMethodSignature(web_gl.CompressedTextureS3TCsRgb, () => ['__']);
  dart.setLibraryUri(web_gl.CompressedTextureS3TCsRgb, I[179]);
  dart.setStaticFieldSignature(web_gl.CompressedTextureS3TCsRgb, () => ['COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT', 'COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT', 'COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT', 'COMPRESSED_SRGB_S3TC_DXT1_EXT']);
  dart.defineLazy(web_gl.CompressedTextureS3TCsRgb, {
    /*web_gl.CompressedTextureS3TCsRgb.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT*/get COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT() {
      return 35917;
    },
    /*web_gl.CompressedTextureS3TCsRgb.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT*/get COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT() {
      return 35918;
    },
    /*web_gl.CompressedTextureS3TCsRgb.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT*/get COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT() {
      return 35919;
    },
    /*web_gl.CompressedTextureS3TCsRgb.COMPRESSED_SRGB_S3TC_DXT1_EXT*/get COMPRESSED_SRGB_S3TC_DXT1_EXT() {
      return 35916;
    }
  }, false);
  dart.registerExtension("WebGLCompressedTextureS3TCsRGB", web_gl.CompressedTextureS3TCsRgb);
  web_gl.ContextEvent = class ContextEvent extends html$.Event {
    static ['_#_#tearOff']() {
      return web_gl.ContextEvent.__();
    }
    static new(type, eventInit = null) {
      if (type == null) dart.nullFailed(I[180], 306, 31, "type");
      if (eventInit != null) {
        let eventInit_1 = html_common.convertDartToNative_Dictionary(eventInit);
        return web_gl.ContextEvent._create_1(type, eventInit_1);
      }
      return web_gl.ContextEvent._create_2(type);
    }
    static ['_#new#tearOff'](type, eventInit = null) {
      if (type == null) dart.nullFailed(I[180], 306, 31, "type");
      return web_gl.ContextEvent.new(type, eventInit);
    }
    static _create_1(type, eventInit) {
      return new WebGLContextEvent(type, eventInit);
    }
    static _create_2(type) {
      return new WebGLContextEvent(type);
    }
    get [S$4.$statusMessage]() {
      return this.statusMessage;
    }
  };
  dart.addRtiResources(web_gl.ContextEvent, ["web_gl|ContextEvent"]);
  dart.setStaticMethodSignature(web_gl.ContextEvent, () => ['__', 'new', '_create_1', '_create_2']);
  dart.setGetterSignature(web_gl.ContextEvent, () => dart.global.Object.setPrototypeOf({[S$4.$statusMessage]: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(web_gl.ContextEvent))));
  dart.setLibraryUri(web_gl.ContextEvent, I[179]);
  dart.registerExtension("WebGLContextEvent", web_gl.ContextEvent);
  web_gl.DebugRendererInfo = class DebugRendererInfo extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.DebugRendererInfo.__();
    }
  };
  dart.addRtiResources(web_gl.DebugRendererInfo, ["web_gl|DebugRendererInfo"]);
  dart.setStaticMethodSignature(web_gl.DebugRendererInfo, () => ['__']);
  dart.setLibraryUri(web_gl.DebugRendererInfo, I[179]);
  dart.setStaticFieldSignature(web_gl.DebugRendererInfo, () => ['UNMASKED_RENDERER_WEBGL', 'UNMASKED_VENDOR_WEBGL']);
  dart.defineLazy(web_gl.DebugRendererInfo, {
    /*web_gl.DebugRendererInfo.UNMASKED_RENDERER_WEBGL*/get UNMASKED_RENDERER_WEBGL() {
      return 37446;
    },
    /*web_gl.DebugRendererInfo.UNMASKED_VENDOR_WEBGL*/get UNMASKED_VENDOR_WEBGL() {
      return 37445;
    }
  }, false);
  dart.registerExtension("WebGLDebugRendererInfo", web_gl.DebugRendererInfo);
  dart.registerExtension("WEBGL_debug_renderer_info", web_gl.DebugRendererInfo);
  web_gl.DebugShaders = class DebugShaders extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.DebugShaders.__();
    }
    [S$4.$getTranslatedShaderSource](...args) {
      return this.getTranslatedShaderSource.apply(this, args);
    }
  };
  dart.addRtiResources(web_gl.DebugShaders, ["web_gl|DebugShaders"]);
  dart.setMethodSignature(web_gl.DebugShaders, () => dart.global.Object.setPrototypeOf({[S$4.$getTranslatedShaderSource]: T$7.ShaderToStringN()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.DebugShaders))));
  dart.setStaticMethodSignature(web_gl.DebugShaders, () => ['__']);
  dart.setLibraryUri(web_gl.DebugShaders, I[179]);
  dart.registerExtension("WebGLDebugShaders", web_gl.DebugShaders);
  dart.registerExtension("WEBGL_debug_shaders", web_gl.DebugShaders);
  web_gl.DepthTexture = class DepthTexture extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.DepthTexture.__();
    }
  };
  dart.addRtiResources(web_gl.DepthTexture, ["web_gl|DepthTexture"]);
  dart.setStaticMethodSignature(web_gl.DepthTexture, () => ['__']);
  dart.setLibraryUri(web_gl.DepthTexture, I[179]);
  dart.setStaticFieldSignature(web_gl.DepthTexture, () => ['UNSIGNED_INT_24_8_WEBGL']);
  dart.defineLazy(web_gl.DepthTexture, {
    /*web_gl.DepthTexture.UNSIGNED_INT_24_8_WEBGL*/get UNSIGNED_INT_24_8_WEBGL() {
      return 34042;
    }
  }, false);
  dart.registerExtension("WebGLDepthTexture", web_gl.DepthTexture);
  dart.registerExtension("WEBGL_depth_texture", web_gl.DepthTexture);
  web_gl.DrawBuffers = class DrawBuffers extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.DrawBuffers.__();
    }
    [S$4.$drawBuffersWebgl](...args) {
      return this.drawBuffersWEBGL.apply(this, args);
    }
  };
  dart.addRtiResources(web_gl.DrawBuffers, ["web_gl|DrawBuffers"]);
  dart.setMethodSignature(web_gl.DrawBuffers, () => dart.global.Object.setPrototypeOf({[S$4.$drawBuffersWebgl]: T$.ListOfintTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.DrawBuffers))));
  dart.setStaticMethodSignature(web_gl.DrawBuffers, () => ['__']);
  dart.setLibraryUri(web_gl.DrawBuffers, I[179]);
  dart.registerExtension("WebGLDrawBuffers", web_gl.DrawBuffers);
  dart.registerExtension("WEBGL_draw_buffers", web_gl.DrawBuffers);
  web_gl.EXTsRgb = class EXTsRgb extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.EXTsRgb.__();
    }
  };
  dart.addRtiResources(web_gl.EXTsRgb, ["web_gl|EXTsRgb"]);
  dart.setStaticMethodSignature(web_gl.EXTsRgb, () => ['__']);
  dart.setLibraryUri(web_gl.EXTsRgb, I[179]);
  dart.setStaticFieldSignature(web_gl.EXTsRgb, () => ['FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT', 'SRGB8_ALPHA8_EXT', 'SRGB_ALPHA_EXT', 'SRGB_EXT']);
  dart.defineLazy(web_gl.EXTsRgb, {
    /*web_gl.EXTsRgb.FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT*/get FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT() {
      return 33296;
    },
    /*web_gl.EXTsRgb.SRGB8_ALPHA8_EXT*/get SRGB8_ALPHA8_EXT() {
      return 35907;
    },
    /*web_gl.EXTsRgb.SRGB_ALPHA_EXT*/get SRGB_ALPHA_EXT() {
      return 35906;
    },
    /*web_gl.EXTsRgb.SRGB_EXT*/get SRGB_EXT() {
      return 35904;
    }
  }, false);
  dart.registerExtension("EXTsRGB", web_gl.EXTsRgb);
  dart.registerExtension("EXT_sRGB", web_gl.EXTsRgb);
  web_gl.ExtBlendMinMax = class ExtBlendMinMax extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ExtBlendMinMax.__();
    }
  };
  dart.addRtiResources(web_gl.ExtBlendMinMax, ["web_gl|ExtBlendMinMax"]);
  dart.setStaticMethodSignature(web_gl.ExtBlendMinMax, () => ['__']);
  dart.setLibraryUri(web_gl.ExtBlendMinMax, I[179]);
  dart.setStaticFieldSignature(web_gl.ExtBlendMinMax, () => ['MAX_EXT', 'MIN_EXT']);
  dart.defineLazy(web_gl.ExtBlendMinMax, {
    /*web_gl.ExtBlendMinMax.MAX_EXT*/get MAX_EXT() {
      return 32776;
    },
    /*web_gl.ExtBlendMinMax.MIN_EXT*/get MIN_EXT() {
      return 32775;
    }
  }, false);
  dart.registerExtension("EXTBlendMinMax", web_gl.ExtBlendMinMax);
  dart.registerExtension("EXT_blend_minmax", web_gl.ExtBlendMinMax);
  web_gl.ExtColorBufferFloat = class ExtColorBufferFloat extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ExtColorBufferFloat.__();
    }
  };
  dart.addRtiResources(web_gl.ExtColorBufferFloat, ["web_gl|ExtColorBufferFloat"]);
  dart.setStaticMethodSignature(web_gl.ExtColorBufferFloat, () => ['__']);
  dart.setLibraryUri(web_gl.ExtColorBufferFloat, I[179]);
  dart.registerExtension("EXTColorBufferFloat", web_gl.ExtColorBufferFloat);
  web_gl.ExtColorBufferHalfFloat = class ExtColorBufferHalfFloat extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ExtColorBufferHalfFloat.__();
    }
  };
  dart.addRtiResources(web_gl.ExtColorBufferHalfFloat, ["web_gl|ExtColorBufferHalfFloat"]);
  dart.setStaticMethodSignature(web_gl.ExtColorBufferHalfFloat, () => ['__']);
  dart.setLibraryUri(web_gl.ExtColorBufferHalfFloat, I[179]);
  dart.registerExtension("EXTColorBufferHalfFloat", web_gl.ExtColorBufferHalfFloat);
  web_gl.ExtDisjointTimerQuery = class ExtDisjointTimerQuery extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ExtDisjointTimerQuery.__();
    }
    [S$4.$beginQueryExt](...args) {
      return this.beginQueryEXT.apply(this, args);
    }
    [S$4.$createQueryExt](...args) {
      return this.createQueryEXT.apply(this, args);
    }
    [S$4.$deleteQueryExt](...args) {
      return this.deleteQueryEXT.apply(this, args);
    }
    [S$4.$endQueryExt](...args) {
      return this.endQueryEXT.apply(this, args);
    }
    [S$4.$getQueryExt](...args) {
      return this.getQueryEXT.apply(this, args);
    }
    [S$4.$getQueryObjectExt](...args) {
      return this.getQueryObjectEXT.apply(this, args);
    }
    [S$4.$isQueryExt](...args) {
      return this.isQueryEXT.apply(this, args);
    }
    [S$4.$queryCounterExt](...args) {
      return this.queryCounterEXT.apply(this, args);
    }
  };
  dart.addRtiResources(web_gl.ExtDisjointTimerQuery, ["web_gl|ExtDisjointTimerQuery"]);
  dart.setMethodSignature(web_gl.ExtDisjointTimerQuery, () => dart.global.Object.setPrototypeOf({
    [S$4.$beginQueryExt]: T$7.intAndTimerQueryExtTovoid(),
    [S$4.$createQueryExt]: T$7.VoidToTimerQueryExt(),
    [S$4.$deleteQueryExt]: T$7.TimerQueryExtNTovoid(),
    [S$4.$endQueryExt]: T$.intTovoid(),
    [S$4.$getQueryExt]: T$7.intAndintToObjectN(),
    [S$4.$getQueryObjectExt]: T$7.TimerQueryExtAndintToObjectN(),
    [S$4.$isQueryExt]: T$7.TimerQueryExtNTobool(),
    [S$4.$queryCounterExt]: T$7.TimerQueryExtAndintTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.ExtDisjointTimerQuery))));
  dart.setStaticMethodSignature(web_gl.ExtDisjointTimerQuery, () => ['__']);
  dart.setLibraryUri(web_gl.ExtDisjointTimerQuery, I[179]);
  dart.setStaticFieldSignature(web_gl.ExtDisjointTimerQuery, () => ['CURRENT_QUERY_EXT', 'GPU_DISJOINT_EXT', 'QUERY_COUNTER_BITS_EXT', 'QUERY_RESULT_AVAILABLE_EXT', 'QUERY_RESULT_EXT', 'TIMESTAMP_EXT', 'TIME_ELAPSED_EXT']);
  dart.defineLazy(web_gl.ExtDisjointTimerQuery, {
    /*web_gl.ExtDisjointTimerQuery.CURRENT_QUERY_EXT*/get CURRENT_QUERY_EXT() {
      return 34917;
    },
    /*web_gl.ExtDisjointTimerQuery.GPU_DISJOINT_EXT*/get GPU_DISJOINT_EXT() {
      return 36795;
    },
    /*web_gl.ExtDisjointTimerQuery.QUERY_COUNTER_BITS_EXT*/get QUERY_COUNTER_BITS_EXT() {
      return 34916;
    },
    /*web_gl.ExtDisjointTimerQuery.QUERY_RESULT_AVAILABLE_EXT*/get QUERY_RESULT_AVAILABLE_EXT() {
      return 34919;
    },
    /*web_gl.ExtDisjointTimerQuery.QUERY_RESULT_EXT*/get QUERY_RESULT_EXT() {
      return 34918;
    },
    /*web_gl.ExtDisjointTimerQuery.TIMESTAMP_EXT*/get TIMESTAMP_EXT() {
      return 36392;
    },
    /*web_gl.ExtDisjointTimerQuery.TIME_ELAPSED_EXT*/get TIME_ELAPSED_EXT() {
      return 35007;
    }
  }, false);
  dart.registerExtension("EXTDisjointTimerQuery", web_gl.ExtDisjointTimerQuery);
  web_gl.ExtDisjointTimerQueryWebGL2 = class ExtDisjointTimerQueryWebGL2 extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ExtDisjointTimerQueryWebGL2.__();
    }
    [S$4.$queryCounterExt](...args) {
      return this.queryCounterEXT.apply(this, args);
    }
  };
  dart.addRtiResources(web_gl.ExtDisjointTimerQueryWebGL2, ["web_gl|ExtDisjointTimerQueryWebGL2"]);
  dart.setMethodSignature(web_gl.ExtDisjointTimerQueryWebGL2, () => dart.global.Object.setPrototypeOf({[S$4.$queryCounterExt]: T$7.QueryAndintTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.ExtDisjointTimerQueryWebGL2))));
  dart.setStaticMethodSignature(web_gl.ExtDisjointTimerQueryWebGL2, () => ['__']);
  dart.setLibraryUri(web_gl.ExtDisjointTimerQueryWebGL2, I[179]);
  dart.setStaticFieldSignature(web_gl.ExtDisjointTimerQueryWebGL2, () => ['GPU_DISJOINT_EXT', 'QUERY_COUNTER_BITS_EXT', 'TIMESTAMP_EXT', 'TIME_ELAPSED_EXT']);
  dart.defineLazy(web_gl.ExtDisjointTimerQueryWebGL2, {
    /*web_gl.ExtDisjointTimerQueryWebGL2.GPU_DISJOINT_EXT*/get GPU_DISJOINT_EXT() {
      return 36795;
    },
    /*web_gl.ExtDisjointTimerQueryWebGL2.QUERY_COUNTER_BITS_EXT*/get QUERY_COUNTER_BITS_EXT() {
      return 34916;
    },
    /*web_gl.ExtDisjointTimerQueryWebGL2.TIMESTAMP_EXT*/get TIMESTAMP_EXT() {
      return 36392;
    },
    /*web_gl.ExtDisjointTimerQueryWebGL2.TIME_ELAPSED_EXT*/get TIME_ELAPSED_EXT() {
      return 35007;
    }
  }, false);
  dart.registerExtension("EXTDisjointTimerQueryWebGL2", web_gl.ExtDisjointTimerQueryWebGL2);
  web_gl.ExtFragDepth = class ExtFragDepth extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ExtFragDepth.__();
    }
  };
  dart.addRtiResources(web_gl.ExtFragDepth, ["web_gl|ExtFragDepth"]);
  dart.setStaticMethodSignature(web_gl.ExtFragDepth, () => ['__']);
  dart.setLibraryUri(web_gl.ExtFragDepth, I[179]);
  dart.registerExtension("EXTFragDepth", web_gl.ExtFragDepth);
  dart.registerExtension("EXT_frag_depth", web_gl.ExtFragDepth);
  web_gl.ExtShaderTextureLod = class ExtShaderTextureLod extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ExtShaderTextureLod.__();
    }
  };
  dart.addRtiResources(web_gl.ExtShaderTextureLod, ["web_gl|ExtShaderTextureLod"]);
  dart.setStaticMethodSignature(web_gl.ExtShaderTextureLod, () => ['__']);
  dart.setLibraryUri(web_gl.ExtShaderTextureLod, I[179]);
  dart.registerExtension("EXTShaderTextureLOD", web_gl.ExtShaderTextureLod);
  dart.registerExtension("EXT_shader_texture_lod", web_gl.ExtShaderTextureLod);
  web_gl.ExtTextureFilterAnisotropic = class ExtTextureFilterAnisotropic extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ExtTextureFilterAnisotropic.__();
    }
  };
  dart.addRtiResources(web_gl.ExtTextureFilterAnisotropic, ["web_gl|ExtTextureFilterAnisotropic"]);
  dart.setStaticMethodSignature(web_gl.ExtTextureFilterAnisotropic, () => ['__']);
  dart.setLibraryUri(web_gl.ExtTextureFilterAnisotropic, I[179]);
  dart.setStaticFieldSignature(web_gl.ExtTextureFilterAnisotropic, () => ['MAX_TEXTURE_MAX_ANISOTROPY_EXT', 'TEXTURE_MAX_ANISOTROPY_EXT']);
  dart.defineLazy(web_gl.ExtTextureFilterAnisotropic, {
    /*web_gl.ExtTextureFilterAnisotropic.MAX_TEXTURE_MAX_ANISOTROPY_EXT*/get MAX_TEXTURE_MAX_ANISOTROPY_EXT() {
      return 34047;
    },
    /*web_gl.ExtTextureFilterAnisotropic.TEXTURE_MAX_ANISOTROPY_EXT*/get TEXTURE_MAX_ANISOTROPY_EXT() {
      return 34046;
    }
  }, false);
  dart.registerExtension("EXTTextureFilterAnisotropic", web_gl.ExtTextureFilterAnisotropic);
  dart.registerExtension("EXT_texture_filter_anisotropic", web_gl.ExtTextureFilterAnisotropic);
  web_gl.Framebuffer = class Framebuffer extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Framebuffer.__();
    }
  };
  dart.addRtiResources(web_gl.Framebuffer, ["web_gl|Framebuffer"]);
  dart.setStaticMethodSignature(web_gl.Framebuffer, () => ['__']);
  dart.setLibraryUri(web_gl.Framebuffer, I[179]);
  dart.registerExtension("WebGLFramebuffer", web_gl.Framebuffer);
  web_gl.GetBufferSubDataAsync = class GetBufferSubDataAsync extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.GetBufferSubDataAsync.__();
    }
    [S$4.$getBufferSubDataAsync](target, srcByteOffset, dstData, dstOffset = null, length = null) {
      if (target == null) dart.nullFailed(I[180], 562, 36, "target");
      if (srcByteOffset == null) dart.nullFailed(I[180], 562, 48, "srcByteOffset");
      if (dstData == null) dart.nullFailed(I[180], 562, 73, "dstData");
      return js_util.promiseToFuture(T$.dynamic(), this.getBufferSubDataAsync(target, srcByteOffset, dstData, dstOffset, length));
    }
  };
  dart.addRtiResources(web_gl.GetBufferSubDataAsync, ["web_gl|GetBufferSubDataAsync"]);
  dart.setMethodSignature(web_gl.GetBufferSubDataAsync, () => dart.global.Object.setPrototypeOf({[S$4.$getBufferSubDataAsync]: T$7.intAndintAndTypedData__ToFuture()}, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.GetBufferSubDataAsync))));
  dart.setStaticMethodSignature(web_gl.GetBufferSubDataAsync, () => ['__']);
  dart.setLibraryUri(web_gl.GetBufferSubDataAsync, I[179]);
  dart.registerExtension("WebGLGetBufferSubDataAsync", web_gl.GetBufferSubDataAsync);
  web_gl.LoseContext = class LoseContext extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.LoseContext.__();
    }
    [S$4.$loseContext](...args) {
      return this.loseContext.apply(this, args);
    }
    [S$4.$restoreContext](...args) {
      return this.restoreContext.apply(this, args);
    }
  };
  dart.addRtiResources(web_gl.LoseContext, ["web_gl|LoseContext"]);
  dart.setMethodSignature(web_gl.LoseContext, () => dart.global.Object.setPrototypeOf({
    [S$4.$loseContext]: T$.VoidTovoid(),
    [S$4.$restoreContext]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.LoseContext))));
  dart.setStaticMethodSignature(web_gl.LoseContext, () => ['__']);
  dart.setLibraryUri(web_gl.LoseContext, I[179]);
  dart.registerExtension("WebGLLoseContext", web_gl.LoseContext);
  dart.registerExtension("WebGLExtensionLoseContext", web_gl.LoseContext);
  dart.registerExtension("WEBGL_lose_context", web_gl.LoseContext);
  web_gl.OesElementIndexUint = class OesElementIndexUint extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.OesElementIndexUint.__();
    }
  };
  dart.addRtiResources(web_gl.OesElementIndexUint, ["web_gl|OesElementIndexUint"]);
  dart.setStaticMethodSignature(web_gl.OesElementIndexUint, () => ['__']);
  dart.setLibraryUri(web_gl.OesElementIndexUint, I[179]);
  dart.registerExtension("OESElementIndexUint", web_gl.OesElementIndexUint);
  dart.registerExtension("OES_element_index_uint", web_gl.OesElementIndexUint);
  web_gl.OesStandardDerivatives = class OesStandardDerivatives extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.OesStandardDerivatives.__();
    }
  };
  dart.addRtiResources(web_gl.OesStandardDerivatives, ["web_gl|OesStandardDerivatives"]);
  dart.setStaticMethodSignature(web_gl.OesStandardDerivatives, () => ['__']);
  dart.setLibraryUri(web_gl.OesStandardDerivatives, I[179]);
  dart.setStaticFieldSignature(web_gl.OesStandardDerivatives, () => ['FRAGMENT_SHADER_DERIVATIVE_HINT_OES']);
  dart.defineLazy(web_gl.OesStandardDerivatives, {
    /*web_gl.OesStandardDerivatives.FRAGMENT_SHADER_DERIVATIVE_HINT_OES*/get FRAGMENT_SHADER_DERIVATIVE_HINT_OES() {
      return 35723;
    }
  }, false);
  dart.registerExtension("OESStandardDerivatives", web_gl.OesStandardDerivatives);
  dart.registerExtension("OES_standard_derivatives", web_gl.OesStandardDerivatives);
  web_gl.OesTextureFloat = class OesTextureFloat extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.OesTextureFloat.__();
    }
  };
  dart.addRtiResources(web_gl.OesTextureFloat, ["web_gl|OesTextureFloat"]);
  dart.setStaticMethodSignature(web_gl.OesTextureFloat, () => ['__']);
  dart.setLibraryUri(web_gl.OesTextureFloat, I[179]);
  dart.registerExtension("OESTextureFloat", web_gl.OesTextureFloat);
  dart.registerExtension("OES_texture_float", web_gl.OesTextureFloat);
  web_gl.OesTextureFloatLinear = class OesTextureFloatLinear extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.OesTextureFloatLinear.__();
    }
  };
  dart.addRtiResources(web_gl.OesTextureFloatLinear, ["web_gl|OesTextureFloatLinear"]);
  dart.setStaticMethodSignature(web_gl.OesTextureFloatLinear, () => ['__']);
  dart.setLibraryUri(web_gl.OesTextureFloatLinear, I[179]);
  dart.registerExtension("OESTextureFloatLinear", web_gl.OesTextureFloatLinear);
  dart.registerExtension("OES_texture_float_linear", web_gl.OesTextureFloatLinear);
  web_gl.OesTextureHalfFloat = class OesTextureHalfFloat extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.OesTextureHalfFloat.__();
    }
  };
  dart.addRtiResources(web_gl.OesTextureHalfFloat, ["web_gl|OesTextureHalfFloat"]);
  dart.setStaticMethodSignature(web_gl.OesTextureHalfFloat, () => ['__']);
  dart.setLibraryUri(web_gl.OesTextureHalfFloat, I[179]);
  dart.setStaticFieldSignature(web_gl.OesTextureHalfFloat, () => ['HALF_FLOAT_OES']);
  dart.defineLazy(web_gl.OesTextureHalfFloat, {
    /*web_gl.OesTextureHalfFloat.HALF_FLOAT_OES*/get HALF_FLOAT_OES() {
      return 36193;
    }
  }, false);
  dart.registerExtension("OESTextureHalfFloat", web_gl.OesTextureHalfFloat);
  dart.registerExtension("OES_texture_half_float", web_gl.OesTextureHalfFloat);
  web_gl.OesTextureHalfFloatLinear = class OesTextureHalfFloatLinear extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.OesTextureHalfFloatLinear.__();
    }
  };
  dart.addRtiResources(web_gl.OesTextureHalfFloatLinear, ["web_gl|OesTextureHalfFloatLinear"]);
  dart.setStaticMethodSignature(web_gl.OesTextureHalfFloatLinear, () => ['__']);
  dart.setLibraryUri(web_gl.OesTextureHalfFloatLinear, I[179]);
  dart.registerExtension("OESTextureHalfFloatLinear", web_gl.OesTextureHalfFloatLinear);
  dart.registerExtension("OES_texture_half_float_linear", web_gl.OesTextureHalfFloatLinear);
  web_gl.OesVertexArrayObject = class OesVertexArrayObject extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.OesVertexArrayObject.__();
    }
    [S$4.$bindVertexArray](...args) {
      return this.bindVertexArrayOES.apply(this, args);
    }
    [S$4.$createVertexArray](...args) {
      return this.createVertexArrayOES.apply(this, args);
    }
    [S$4.$deleteVertexArray](...args) {
      return this.deleteVertexArrayOES.apply(this, args);
    }
    [S$4.$isVertexArray](...args) {
      return this.isVertexArrayOES.apply(this, args);
    }
  };
  dart.addRtiResources(web_gl.OesVertexArrayObject, ["web_gl|OesVertexArrayObject"]);
  dart.setMethodSignature(web_gl.OesVertexArrayObject, () => dart.global.Object.setPrototypeOf({
    [S$4.$bindVertexArray]: T$7.VertexArrayObjectOesNTovoid(),
    [S$4.$createVertexArray]: T$7.VoidToVertexArrayObjectOes(),
    [S$4.$deleteVertexArray]: T$7.VertexArrayObjectOesNTovoid(),
    [S$4.$isVertexArray]: T$7.VertexArrayObjectOesNTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.OesVertexArrayObject))));
  dart.setStaticMethodSignature(web_gl.OesVertexArrayObject, () => ['__']);
  dart.setLibraryUri(web_gl.OesVertexArrayObject, I[179]);
  dart.setStaticFieldSignature(web_gl.OesVertexArrayObject, () => ['VERTEX_ARRAY_BINDING_OES']);
  dart.defineLazy(web_gl.OesVertexArrayObject, {
    /*web_gl.OesVertexArrayObject.VERTEX_ARRAY_BINDING_OES*/get VERTEX_ARRAY_BINDING_OES() {
      return 34229;
    }
  }, false);
  dart.registerExtension("OESVertexArrayObject", web_gl.OesVertexArrayObject);
  dart.registerExtension("OES_vertex_array_object", web_gl.OesVertexArrayObject);
  web_gl.Program = class Program extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Program.__();
    }
  };
  dart.addRtiResources(web_gl.Program, ["web_gl|Program"]);
  dart.setStaticMethodSignature(web_gl.Program, () => ['__']);
  dart.setLibraryUri(web_gl.Program, I[179]);
  dart.registerExtension("WebGLProgram", web_gl.Program);
  web_gl.Query = class Query extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Query.__();
    }
  };
  dart.addRtiResources(web_gl.Query, ["web_gl|Query"]);
  dart.setStaticMethodSignature(web_gl.Query, () => ['__']);
  dart.setLibraryUri(web_gl.Query, I[179]);
  dart.registerExtension("WebGLQuery", web_gl.Query);
  web_gl.Renderbuffer = class Renderbuffer extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Renderbuffer.__();
    }
  };
  dart.addRtiResources(web_gl.Renderbuffer, ["web_gl|Renderbuffer"]);
  dart.setStaticMethodSignature(web_gl.Renderbuffer, () => ['__']);
  dart.setLibraryUri(web_gl.Renderbuffer, I[179]);
  dart.registerExtension("WebGLRenderbuffer", web_gl.Renderbuffer);
  web_gl.RenderingContext = class RenderingContext extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.RenderingContext.__();
    }
    static get supported() {
      return !!window.WebGLRenderingContext;
    }
    get [S$.$canvas]() {
      return this.canvas;
    }
    get [S$4.$drawingBufferHeight]() {
      return this.drawingBufferHeight;
    }
    get [S$4.$drawingBufferWidth]() {
      return this.drawingBufferWidth;
    }
    [S$4.$activeTexture](...args) {
      return this.activeTexture.apply(this, args);
    }
    [S$4.$attachShader](...args) {
      return this.attachShader.apply(this, args);
    }
    [S$4.$bindAttribLocation](...args) {
      return this.bindAttribLocation.apply(this, args);
    }
    [S$4.$bindBuffer](...args) {
      return this.bindBuffer.apply(this, args);
    }
    [S$4.$bindFramebuffer](...args) {
      return this.bindFramebuffer.apply(this, args);
    }
    [S$4.$bindRenderbuffer](...args) {
      return this.bindRenderbuffer.apply(this, args);
    }
    [S$4.$bindTexture](...args) {
      return this.bindTexture.apply(this, args);
    }
    [S$4.$blendColor](...args) {
      return this.blendColor.apply(this, args);
    }
    [S$4.$blendEquation](...args) {
      return this.blendEquation.apply(this, args);
    }
    [S$4.$blendEquationSeparate](...args) {
      return this.blendEquationSeparate.apply(this, args);
    }
    [S$4.$blendFunc](...args) {
      return this.blendFunc.apply(this, args);
    }
    [S$4.$blendFuncSeparate](...args) {
      return this.blendFuncSeparate.apply(this, args);
    }
    [S$4.$bufferData](...args) {
      return this.bufferData.apply(this, args);
    }
    [S$4.$bufferSubData](...args) {
      return this.bufferSubData.apply(this, args);
    }
    [S$4.$checkFramebufferStatus](...args) {
      return this.checkFramebufferStatus.apply(this, args);
    }
    [$clear](...args) {
      return this.clear.apply(this, args);
    }
    [S$4.$clearColor](...args) {
      return this.clearColor.apply(this, args);
    }
    [S$4.$clearDepth](...args) {
      return this.clearDepth.apply(this, args);
    }
    [S$4.$clearStencil](...args) {
      return this.clearStencil.apply(this, args);
    }
    [S$4.$colorMask](...args) {
      return this.colorMask.apply(this, args);
    }
    [S$2.$commit]() {
      return js_util.promiseToFuture(T$.dynamic(), this.commit());
    }
    [S$4.$compileShader](...args) {
      return this.compileShader.apply(this, args);
    }
    [S$4.$compressedTexImage2D](...args) {
      return this.compressedTexImage2D.apply(this, args);
    }
    [S$4.$compressedTexSubImage2D](...args) {
      return this.compressedTexSubImage2D.apply(this, args);
    }
    [S$4.$copyTexImage2D](...args) {
      return this.copyTexImage2D.apply(this, args);
    }
    [S$4.$copyTexSubImage2D](...args) {
      return this.copyTexSubImage2D.apply(this, args);
    }
    [S$4.$createBuffer](...args) {
      return this.createBuffer.apply(this, args);
    }
    [S$4.$createFramebuffer](...args) {
      return this.createFramebuffer.apply(this, args);
    }
    [S$4.$createProgram](...args) {
      return this.createProgram.apply(this, args);
    }
    [S$4.$createRenderbuffer](...args) {
      return this.createRenderbuffer.apply(this, args);
    }
    [S$4.$createShader](...args) {
      return this.createShader.apply(this, args);
    }
    [S$4.$createTexture](...args) {
      return this.createTexture.apply(this, args);
    }
    [S$4.$cullFace](...args) {
      return this.cullFace.apply(this, args);
    }
    [S$4.$deleteBuffer](...args) {
      return this.deleteBuffer.apply(this, args);
    }
    [S$4.$deleteFramebuffer](...args) {
      return this.deleteFramebuffer.apply(this, args);
    }
    [S$4.$deleteProgram](...args) {
      return this.deleteProgram.apply(this, args);
    }
    [S$4.$deleteRenderbuffer](...args) {
      return this.deleteRenderbuffer.apply(this, args);
    }
    [S$4.$deleteShader](...args) {
      return this.deleteShader.apply(this, args);
    }
    [S$4.$deleteTexture](...args) {
      return this.deleteTexture.apply(this, args);
    }
    [S$4.$depthFunc](...args) {
      return this.depthFunc.apply(this, args);
    }
    [S$4.$depthMask](...args) {
      return this.depthMask.apply(this, args);
    }
    [S$4.$depthRange](...args) {
      return this.depthRange.apply(this, args);
    }
    [S$4.$detachShader](...args) {
      return this.detachShader.apply(this, args);
    }
    [S$2.$disable](...args) {
      return this.disable.apply(this, args);
    }
    [S$4.$disableVertexAttribArray](...args) {
      return this.disableVertexAttribArray.apply(this, args);
    }
    [S$4.$drawArrays](...args) {
      return this.drawArrays.apply(this, args);
    }
    [S$4.$drawElements](...args) {
      return this.drawElements.apply(this, args);
    }
    [S$2.$enable](...args) {
      return this.enable.apply(this, args);
    }
    [S$4.$enableVertexAttribArray](...args) {
      return this.enableVertexAttribArray.apply(this, args);
    }
    [S$.$finish](...args) {
      return this.finish.apply(this, args);
    }
    [S$4.$flush](...args) {
      return this.flush.apply(this, args);
    }
    [S$4.$framebufferRenderbuffer](...args) {
      return this.framebufferRenderbuffer.apply(this, args);
    }
    [S$4.$framebufferTexture2D](...args) {
      return this.framebufferTexture2D.apply(this, args);
    }
    [S$4.$frontFace](...args) {
      return this.frontFace.apply(this, args);
    }
    [S$4.$generateMipmap](...args) {
      return this.generateMipmap.apply(this, args);
    }
    [S$4.$getActiveAttrib](...args) {
      return this.getActiveAttrib.apply(this, args);
    }
    [S$4.$getActiveUniform](...args) {
      return this.getActiveUniform.apply(this, args);
    }
    [S$4.$getAttachedShaders](...args) {
      return this.getAttachedShaders.apply(this, args);
    }
    [S$4.$getAttribLocation](...args) {
      return this.getAttribLocation.apply(this, args);
    }
    [S$4.$getBufferParameter](...args) {
      return this.getBufferParameter.apply(this, args);
    }
    [S$.$getContextAttributes]() {
      return html_common.convertNativeToDart_Dictionary(this[S$4._getContextAttributes_1$1]());
    }
    [S$4._getContextAttributes_1$1](...args) {
      return this.getContextAttributes.apply(this, args);
    }
    [S$4.$getError](...args) {
      return this.getError.apply(this, args);
    }
    [S$4.$getExtension](...args) {
      return this.getExtension.apply(this, args);
    }
    [S$4.$getFramebufferAttachmentParameter](...args) {
      return this.getFramebufferAttachmentParameter.apply(this, args);
    }
    [S$3.$getParameter](...args) {
      return this.getParameter.apply(this, args);
    }
    [S$4.$getProgramInfoLog](...args) {
      return this.getProgramInfoLog.apply(this, args);
    }
    [S$4.$getProgramParameter](...args) {
      return this.getProgramParameter.apply(this, args);
    }
    [S$4.$getRenderbufferParameter](...args) {
      return this.getRenderbufferParameter.apply(this, args);
    }
    [S$4.$getShaderInfoLog](...args) {
      return this.getShaderInfoLog.apply(this, args);
    }
    [S$4.$getShaderParameter](...args) {
      return this.getShaderParameter.apply(this, args);
    }
    [S$4.$getShaderPrecisionFormat](...args) {
      return this.getShaderPrecisionFormat.apply(this, args);
    }
    [S$4.$getShaderSource](...args) {
      return this.getShaderSource.apply(this, args);
    }
    [S$4.$getSupportedExtensions](...args) {
      return this.getSupportedExtensions.apply(this, args);
    }
    [S$4.$getTexParameter](...args) {
      return this.getTexParameter.apply(this, args);
    }
    [S$4.$getUniform](...args) {
      return this.getUniform.apply(this, args);
    }
    [S$4.$getUniformLocation](...args) {
      return this.getUniformLocation.apply(this, args);
    }
    [S$4.$getVertexAttrib](...args) {
      return this.getVertexAttrib.apply(this, args);
    }
    [S$4.$getVertexAttribOffset](...args) {
      return this.getVertexAttribOffset.apply(this, args);
    }
    [S$4.$hint](...args) {
      return this.hint.apply(this, args);
    }
    [S$4.$isBuffer](...args) {
      return this.isBuffer.apply(this, args);
    }
    [S$.$isContextLost](...args) {
      return this.isContextLost.apply(this, args);
    }
    [S$4.$isEnabled](...args) {
      return this.isEnabled.apply(this, args);
    }
    [S$4.$isFramebuffer](...args) {
      return this.isFramebuffer.apply(this, args);
    }
    [S$4.$isProgram](...args) {
      return this.isProgram.apply(this, args);
    }
    [S$4.$isRenderbuffer](...args) {
      return this.isRenderbuffer.apply(this, args);
    }
    [S$4.$isShader](...args) {
      return this.isShader.apply(this, args);
    }
    [S$4.$isTexture](...args) {
      return this.isTexture.apply(this, args);
    }
    [S$.$lineWidth](...args) {
      return this.lineWidth.apply(this, args);
    }
    [S$4.$linkProgram](...args) {
      return this.linkProgram.apply(this, args);
    }
    [S$4.$pixelStorei](...args) {
      return this.pixelStorei.apply(this, args);
    }
    [S$4.$polygonOffset](...args) {
      return this.polygonOffset.apply(this, args);
    }
    [S$4._readPixels](...args) {
      return this.readPixels.apply(this, args);
    }
    [S$4.$renderbufferStorage](...args) {
      return this.renderbufferStorage.apply(this, args);
    }
    [S$4.$sampleCoverage](...args) {
      return this.sampleCoverage.apply(this, args);
    }
    [S$4.$scissor](...args) {
      return this.scissor.apply(this, args);
    }
    [S$4.$shaderSource](...args) {
      return this.shaderSource.apply(this, args);
    }
    [S$4.$stencilFunc](...args) {
      return this.stencilFunc.apply(this, args);
    }
    [S$4.$stencilFuncSeparate](...args) {
      return this.stencilFuncSeparate.apply(this, args);
    }
    [S$4.$stencilMask](...args) {
      return this.stencilMask.apply(this, args);
    }
    [S$4.$stencilMaskSeparate](...args) {
      return this.stencilMaskSeparate.apply(this, args);
    }
    [S$4.$stencilOp](...args) {
      return this.stencilOp.apply(this, args);
    }
    [S$4.$stencilOpSeparate](...args) {
      return this.stencilOpSeparate.apply(this, args);
    }
    [S$4.$texImage2D](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video, format = null, type = null, pixels = null) {
      if (target == null) dart.nullFailed(I[180], 984, 11, "target");
      if (level == null) dart.nullFailed(I[180], 985, 11, "level");
      if (internalformat == null) dart.nullFailed(I[180], 986, 11, "internalformat");
      if (format_OR_width == null) dart.nullFailed(I[180], 987, 11, "format_OR_width");
      if (height_OR_type == null) dart.nullFailed(I[180], 988, 11, "height_OR_type");
      if (type != null && format != null && T$.int()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video)) {
        this[S$4._texImage2D_1](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video, format, type, pixels);
        return;
      }
      if (T$4.ImageData()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        let pixels_1 = html_common.convertDartToNative_ImageData(bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        this[S$4._texImage2D_2](target, level, internalformat, format_OR_width, height_OR_type, pixels_1);
        return;
      }
      if (T$8.ImageElement$1()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        this[S$4._texImage2D_3](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$4.CanvasElement()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        this[S$4._texImage2D_4](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$8.VideoElement()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        this[S$4._texImage2D_5](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$5.ImageBitmap()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        this[S$4._texImage2D_6](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$4._texImage2D_1](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_2](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_3](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_4](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_5](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_6](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4.$texParameterf](...args) {
      return this.texParameterf.apply(this, args);
    }
    [S$4.$texParameteri](...args) {
      return this.texParameteri.apply(this, args);
    }
    [S$4.$texSubImage2D](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video, type = null, pixels = null) {
      if (target == null) dart.nullFailed(I[180], 1101, 11, "target");
      if (level == null) dart.nullFailed(I[180], 1102, 11, "level");
      if (xoffset == null) dart.nullFailed(I[180], 1103, 11, "xoffset");
      if (yoffset == null) dart.nullFailed(I[180], 1104, 11, "yoffset");
      if (format_OR_width == null) dart.nullFailed(I[180], 1105, 11, "format_OR_width");
      if (height_OR_type == null) dart.nullFailed(I[180], 1106, 11, "height_OR_type");
      if (type != null && T$.int()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video)) {
        this[S$4._texSubImage2D_1](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video, type, pixels);
        return;
      }
      if (T$4.ImageData()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        let pixels_1 = html_common.convertDartToNative_ImageData(bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        this[S$4._texSubImage2D_2](target, level, xoffset, yoffset, format_OR_width, height_OR_type, pixels_1);
        return;
      }
      if (T$8.ImageElement$1()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        this[S$4._texSubImage2D_3](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$4.CanvasElement()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        this[S$4._texSubImage2D_4](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$8.VideoElement()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        this[S$4._texSubImage2D_5](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$5.ImageBitmap()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        this[S$4._texSubImage2D_6](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$4._texSubImage2D_1](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_2](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_3](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_4](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_5](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_6](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4.$uniform1f](...args) {
      return this.uniform1f.apply(this, args);
    }
    [S$4.$uniform1fv](...args) {
      return this.uniform1fv.apply(this, args);
    }
    [S$4.$uniform1i](...args) {
      return this.uniform1i.apply(this, args);
    }
    [S$4.$uniform1iv](...args) {
      return this.uniform1iv.apply(this, args);
    }
    [S$4.$uniform2f](...args) {
      return this.uniform2f.apply(this, args);
    }
    [S$4.$uniform2fv](...args) {
      return this.uniform2fv.apply(this, args);
    }
    [S$4.$uniform2i](...args) {
      return this.uniform2i.apply(this, args);
    }
    [S$4.$uniform2iv](...args) {
      return this.uniform2iv.apply(this, args);
    }
    [S$4.$uniform3f](...args) {
      return this.uniform3f.apply(this, args);
    }
    [S$4.$uniform3fv](...args) {
      return this.uniform3fv.apply(this, args);
    }
    [S$4.$uniform3i](...args) {
      return this.uniform3i.apply(this, args);
    }
    [S$4.$uniform3iv](...args) {
      return this.uniform3iv.apply(this, args);
    }
    [S$4.$uniform4f](...args) {
      return this.uniform4f.apply(this, args);
    }
    [S$4.$uniform4fv](...args) {
      return this.uniform4fv.apply(this, args);
    }
    [S$4.$uniform4i](...args) {
      return this.uniform4i.apply(this, args);
    }
    [S$4.$uniform4iv](...args) {
      return this.uniform4iv.apply(this, args);
    }
    [S$4.$uniformMatrix2fv](...args) {
      return this.uniformMatrix2fv.apply(this, args);
    }
    [S$4.$uniformMatrix3fv](...args) {
      return this.uniformMatrix3fv.apply(this, args);
    }
    [S$4.$uniformMatrix4fv](...args) {
      return this.uniformMatrix4fv.apply(this, args);
    }
    [S$4.$useProgram](...args) {
      return this.useProgram.apply(this, args);
    }
    [S$4.$validateProgram](...args) {
      return this.validateProgram.apply(this, args);
    }
    [S$4.$vertexAttrib1f](...args) {
      return this.vertexAttrib1f.apply(this, args);
    }
    [S$4.$vertexAttrib1fv](...args) {
      return this.vertexAttrib1fv.apply(this, args);
    }
    [S$4.$vertexAttrib2f](...args) {
      return this.vertexAttrib2f.apply(this, args);
    }
    [S$4.$vertexAttrib2fv](...args) {
      return this.vertexAttrib2fv.apply(this, args);
    }
    [S$4.$vertexAttrib3f](...args) {
      return this.vertexAttrib3f.apply(this, args);
    }
    [S$4.$vertexAttrib3fv](...args) {
      return this.vertexAttrib3fv.apply(this, args);
    }
    [S$4.$vertexAttrib4f](...args) {
      return this.vertexAttrib4f.apply(this, args);
    }
    [S$4.$vertexAttrib4fv](...args) {
      return this.vertexAttrib4fv.apply(this, args);
    }
    [S$4.$vertexAttribPointer](...args) {
      return this.vertexAttribPointer.apply(this, args);
    }
    [S$4.$viewport](...args) {
      return this.viewport.apply(this, args);
    }
    [S$4.$readPixels](x, y, width, height, format, type, pixels) {
      if (x == null) dart.nullFailed(I[180], 1277, 23, "x");
      if (y == null) dart.nullFailed(I[180], 1277, 30, "y");
      if (width == null) dart.nullFailed(I[180], 1277, 37, "width");
      if (height == null) dart.nullFailed(I[180], 1277, 48, "height");
      if (format == null) dart.nullFailed(I[180], 1277, 60, "format");
      if (type == null) dart.nullFailed(I[180], 1277, 72, "type");
      this[S$4._readPixels](x, y, width, height, format, type, pixels);
    }
    [S$4.$texImage2DUntyped](targetTexture, levelOfDetail, internalFormat, format, type, data) {
      if (targetTexture == null) dart.nullFailed(I[180], 1291, 30, "targetTexture");
      if (levelOfDetail == null) dart.nullFailed(I[180], 1291, 49, "levelOfDetail");
      if (internalFormat == null) dart.nullFailed(I[180], 1292, 11, "internalFormat");
      if (format == null) dart.nullFailed(I[180], 1292, 31, "format");
      if (type == null) dart.nullFailed(I[180], 1292, 43, "type");
      this[S$4.$texImage2D](targetTexture, levelOfDetail, internalFormat, format, type, data);
    }
    [S$4.$texImage2DTyped](targetTexture, levelOfDetail, internalFormat, width, height, border, format, type, data) {
      if (targetTexture == null) dart.nullFailed(I[180], 1303, 28, "targetTexture");
      if (levelOfDetail == null) dart.nullFailed(I[180], 1303, 47, "levelOfDetail");
      if (internalFormat == null) dart.nullFailed(I[180], 1303, 66, "internalFormat");
      if (width == null) dart.nullFailed(I[180], 1304, 11, "width");
      if (height == null) dart.nullFailed(I[180], 1304, 22, "height");
      if (border == null) dart.nullFailed(I[180], 1304, 34, "border");
      if (format == null) dart.nullFailed(I[180], 1304, 46, "format");
      if (type == null) dart.nullFailed(I[180], 1304, 58, "type");
      if (data == null) dart.nullFailed(I[180], 1304, 74, "data");
      this[S$4.$texImage2D](targetTexture, levelOfDetail, internalFormat, width, height, border, format, type, data);
    }
    [S$4.$texSubImage2DUntyped](targetTexture, levelOfDetail, xOffset, yOffset, format, type, data) {
      if (targetTexture == null) dart.nullFailed(I[180], 1317, 33, "targetTexture");
      if (levelOfDetail == null) dart.nullFailed(I[180], 1317, 52, "levelOfDetail");
      if (xOffset == null) dart.nullFailed(I[180], 1317, 71, "xOffset");
      if (yOffset == null) dart.nullFailed(I[180], 1318, 11, "yOffset");
      if (format == null) dart.nullFailed(I[180], 1318, 24, "format");
      if (type == null) dart.nullFailed(I[180], 1318, 36, "type");
      this[S$4.$texSubImage2D](targetTexture, levelOfDetail, xOffset, yOffset, format, type, data);
    }
    [S$4.$texSubImage2DTyped](targetTexture, levelOfDetail, xOffset, yOffset, width, height, border, format, type, data) {
      if (targetTexture == null) dart.nullFailed(I[180], 1328, 11, "targetTexture");
      if (levelOfDetail == null) dart.nullFailed(I[180], 1329, 11, "levelOfDetail");
      if (xOffset == null) dart.nullFailed(I[180], 1330, 11, "xOffset");
      if (yOffset == null) dart.nullFailed(I[180], 1331, 11, "yOffset");
      if (width == null) dart.nullFailed(I[180], 1332, 11, "width");
      if (height == null) dart.nullFailed(I[180], 1333, 11, "height");
      if (border == null) dart.nullFailed(I[180], 1334, 11, "border");
      if (format == null) dart.nullFailed(I[180], 1335, 11, "format");
      if (type == null) dart.nullFailed(I[180], 1336, 11, "type");
      if (data == null) dart.nullFailed(I[180], 1337, 17, "data");
      this[S$4.$texSubImage2D](targetTexture, levelOfDetail, xOffset, yOffset, width, height, format, type, data);
    }
    [S$4.$bufferDataTyped](target, data, usage) {
      if (target == null) dart.nullFailed(I[180], 1346, 28, "target");
      if (data == null) dart.nullFailed(I[180], 1346, 46, "data");
      if (usage == null) dart.nullFailed(I[180], 1346, 56, "usage");
      this.bufferData(target, data, usage);
    }
    [S$4.$bufferSubDataTyped](target, offset, data) {
      if (target == null) dart.nullFailed(I[180], 1354, 31, "target");
      if (offset == null) dart.nullFailed(I[180], 1354, 43, "offset");
      if (data == null) dart.nullFailed(I[180], 1354, 61, "data");
      this.bufferSubData(target, offset, data);
    }
  };
  dart.addRtiResources(web_gl.RenderingContext, ["web_gl|RenderingContext", "html|CanvasRenderingContext"]);
  dart.setMethodSignature(web_gl.RenderingContext, () => dart.global.Object.setPrototypeOf({
    [S$4.$activeTexture]: T$.intTovoid(),
    [S$4.$attachShader]: T$8.ProgramAndShaderTovoid(),
    [S$4.$bindAttribLocation]: T$8.ProgramAndintAndStringTovoid(),
    [S$4.$bindBuffer]: T$8.intAndBufferNTovoid(),
    [S$4.$bindFramebuffer]: T$8.intAndFramebufferNTovoid(),
    [S$4.$bindRenderbuffer]: T$8.intAndRenderbufferNTovoid(),
    [S$4.$bindTexture]: T$8.intAndTextureNTovoid(),
    [S$4.$blendColor]: T$4.numAndnumAndnum__Tovoid(),
    [S$4.$blendEquation]: T$.intTovoid(),
    [S$4.$blendEquationSeparate]: T$.intAndintTovoid(),
    [S$4.$blendFunc]: T$.intAndintTovoid(),
    [S$4.$blendFuncSeparate]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$bufferData]: T$8.intAnddynamicAndintTovoid(),
    [S$4.$bufferSubData]: T$8.intAndintAnddynamicTovoid(),
    [S$4.$checkFramebufferStatus]: T$.intToint(),
    [$clear]: T$.intTovoid(),
    [S$4.$clearColor]: T$4.numAndnumAndnum__Tovoid(),
    [S$4.$clearDepth]: T$2.numTovoid(),
    [S$4.$clearStencil]: T$.intTovoid(),
    [S$4.$colorMask]: T$8.boolAndboolAndbool__Tovoid(),
    [S$2.$commit]: T$.VoidToFuture(),
    [S$4.$compileShader]: T$8.ShaderTovoid(),
    [S$4.$compressedTexImage2D]: T$8.intAndintAndint__Tovoid$3(),
    [S$4.$compressedTexSubImage2D]: T$8.intAndintAndint__Tovoid$4(),
    [S$4.$copyTexImage2D]: T$8.intAndintAndint__Tovoid$5(),
    [S$4.$copyTexSubImage2D]: T$8.intAndintAndint__Tovoid$5(),
    [S$4.$createBuffer]: T$7.VoidToBuffer(),
    [S$4.$createFramebuffer]: T$7.VoidToFramebuffer(),
    [S$4.$createProgram]: T$7.VoidToProgram(),
    [S$4.$createRenderbuffer]: T$7.VoidToRenderbuffer(),
    [S$4.$createShader]: T$8.intToShader(),
    [S$4.$createTexture]: T$8.VoidToTexture(),
    [S$4.$cullFace]: T$.intTovoid(),
    [S$4.$deleteBuffer]: T$8.BufferNTovoid(),
    [S$4.$deleteFramebuffer]: T$8.FramebufferNTovoid(),
    [S$4.$deleteProgram]: T$8.ProgramNTovoid(),
    [S$4.$deleteRenderbuffer]: T$8.RenderbufferNTovoid(),
    [S$4.$deleteShader]: T$8.ShaderNTovoid(),
    [S$4.$deleteTexture]: T$8.TextureNTovoid(),
    [S$4.$depthFunc]: T$.intTovoid(),
    [S$4.$depthMask]: T$1.boolTovoid(),
    [S$4.$depthRange]: T$4.numAndnumTovoid(),
    [S$4.$detachShader]: T$8.ProgramAndShaderTovoid(),
    [S$2.$disable]: T$.intTovoid(),
    [S$4.$disableVertexAttribArray]: T$.intTovoid(),
    [S$4.$drawArrays]: T$8.intAndintAndintTovoid(),
    [S$4.$drawElements]: T$7.intAndintAndint__Tovoid$1(),
    [S$2.$enable]: T$.intTovoid(),
    [S$4.$enableVertexAttribArray]: T$.intTovoid(),
    [S$.$finish]: T$.VoidTovoid(),
    [S$4.$flush]: T$.VoidTovoid(),
    [S$4.$framebufferRenderbuffer]: T$8.intAndintAndint__Tovoid$6(),
    [S$4.$framebufferTexture2D]: T$8.intAndintAndint__Tovoid$7(),
    [S$4.$frontFace]: T$.intTovoid(),
    [S$4.$generateMipmap]: T$.intTovoid(),
    [S$4.$getActiveAttrib]: T$8.ProgramAndintToActiveInfo(),
    [S$4.$getActiveUniform]: T$8.ProgramAndintToActiveInfo(),
    [S$4.$getAttachedShaders]: T$8.ProgramToListNOfShader(),
    [S$4.$getAttribLocation]: T$8.ProgramAndStringToint(),
    [S$4.$getBufferParameter]: T$7.intAndintToObjectN(),
    [S$.$getContextAttributes]: T$8.VoidToMapN(),
    [S$4._getContextAttributes_1$1]: T$.VoidTodynamic(),
    [S$4.$getError]: T$.VoidToint(),
    [S$4.$getExtension]: T$4.StringToObjectN(),
    [S$4.$getFramebufferAttachmentParameter]: T$8.intAndintAndintToObjectN(),
    [S$3.$getParameter]: T$.intToObjectN(),
    [S$4.$getProgramInfoLog]: T$8.ProgramToStringN(),
    [S$4.$getProgramParameter]: T$8.ProgramAndintToObjectN(),
    [S$4.$getRenderbufferParameter]: T$7.intAndintToObjectN(),
    [S$4.$getShaderInfoLog]: T$7.ShaderToStringN(),
    [S$4.$getShaderParameter]: T$8.ShaderAndintToObjectN(),
    [S$4.$getShaderPrecisionFormat]: T$8.intAndintToShaderPrecisionFormat(),
    [S$4.$getShaderSource]: T$7.ShaderToStringN(),
    [S$4.$getSupportedExtensions]: T$8.VoidToListNOfString(),
    [S$4.$getTexParameter]: T$7.intAndintToObjectN(),
    [S$4.$getUniform]: T$8.ProgramAndUniformLocationToObjectN(),
    [S$4.$getUniformLocation]: T$8.ProgramAndStringToUniformLocation(),
    [S$4.$getVertexAttrib]: T$7.intAndintToObjectN(),
    [S$4.$getVertexAttribOffset]: T$.intAndintToint(),
    [S$4.$hint]: T$.intAndintTovoid(),
    [S$4.$isBuffer]: T$8.BufferNTobool(),
    [S$.$isContextLost]: T$.VoidTobool(),
    [S$4.$isEnabled]: T$.intTobool(),
    [S$4.$isFramebuffer]: T$8.FramebufferNTobool(),
    [S$4.$isProgram]: T$8.ProgramNTobool(),
    [S$4.$isRenderbuffer]: T$8.RenderbufferNTobool(),
    [S$4.$isShader]: T$8.ShaderNTobool(),
    [S$4.$isTexture]: T$8.TextureNTobool(),
    [S$.$lineWidth]: T$2.numTovoid(),
    [S$4.$linkProgram]: T$8.ProgramTovoid(),
    [S$4.$pixelStorei]: T$.intAndintTovoid(),
    [S$4.$polygonOffset]: T$4.numAndnumTovoid(),
    [S$4._readPixels]: T$8.intAndintAndint__Tovoid$8(),
    [S$4.$renderbufferStorage]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$sampleCoverage]: T$8.numAndboolTovoid(),
    [S$4.$scissor]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$shaderSource]: T$8.ShaderAndStringTovoid(),
    [S$4.$stencilFunc]: T$8.intAndintAndintTovoid(),
    [S$4.$stencilFuncSeparate]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$stencilMask]: T$.intTovoid(),
    [S$4.$stencilMaskSeparate]: T$.intAndintTovoid(),
    [S$4.$stencilOp]: T$8.intAndintAndintTovoid(),
    [S$4.$stencilOpSeparate]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$texImage2D]: T$8.intAndintAndint__Tovoid$9(),
    [S$4._texImage2D_1]: T$8.dynamicAnddynamicAnddynamic__Tovoid$3(),
    [S$4._texImage2D_2]: T$8.dynamicAnddynamicAnddynamic__Tovoid$4(),
    [S$4._texImage2D_3]: T$8.dynamicAnddynamicAnddynamic__Tovoid$5(),
    [S$4._texImage2D_4]: T$8.dynamicAnddynamicAnddynamic__Tovoid$6(),
    [S$4._texImage2D_5]: T$8.dynamicAnddynamicAnddynamic__Tovoid$7(),
    [S$4._texImage2D_6]: T$8.dynamicAnddynamicAnddynamic__Tovoid$8(),
    [S$4.$texParameterf]: T$8.intAndintAndnumTovoid(),
    [S$4.$texParameteri]: T$8.intAndintAndintTovoid(),
    [S$4.$texSubImage2D]: T$8.intAndintAndint__Tovoid$10(),
    [S$4._texSubImage2D_1]: T$8.dynamicAnddynamicAnddynamic__Tovoid$9(),
    [S$4._texSubImage2D_2]: T$4.dynamicAnddynamicAnddynamic__Tovoid(),
    [S$4._texSubImage2D_3]: T$8.dynamicAnddynamicAnddynamic__Tovoid$10(),
    [S$4._texSubImage2D_4]: T$8.dynamicAnddynamicAnddynamic__Tovoid$11(),
    [S$4._texSubImage2D_5]: T$8.dynamicAnddynamicAnddynamic__Tovoid$12(),
    [S$4._texSubImage2D_6]: T$8.dynamicAnddynamicAnddynamic__Tovoid$13(),
    [S$4.$uniform1f]: T$8.UniformLocationNAndnumTovoid(),
    [S$4.$uniform1fv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform1i]: T$8.UniformLocationNAndintTovoid(),
    [S$4.$uniform1iv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform2f]: T$8.UniformLocationNAndnumAndnumTovoid(),
    [S$4.$uniform2fv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform2i]: T$8.UniformLocationNAndintAndintTovoid(),
    [S$4.$uniform2iv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform3f]: T$8.UniformLocationNAndnumAndnum__Tovoid(),
    [S$4.$uniform3fv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform3i]: T$8.UniformLocationNAndintAndint__Tovoid(),
    [S$4.$uniform3iv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform4f]: T$8.UniformLocationNAndnumAndnum__Tovoid$1(),
    [S$4.$uniform4fv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform4i]: T$8.UniformLocationNAndintAndint__Tovoid$1(),
    [S$4.$uniform4iv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniformMatrix2fv]: T$8.UniformLocationNAndboolAnddynamicTovoid(),
    [S$4.$uniformMatrix3fv]: T$8.UniformLocationNAndboolAnddynamicTovoid(),
    [S$4.$uniformMatrix4fv]: T$8.UniformLocationNAndboolAnddynamicTovoid(),
    [S$4.$useProgram]: T$8.ProgramNTovoid(),
    [S$4.$validateProgram]: T$8.ProgramTovoid(),
    [S$4.$vertexAttrib1f]: T$7.intAndnumTovoid(),
    [S$4.$vertexAttrib1fv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttrib2f]: T$8.intAndnumAndnumTovoid(),
    [S$4.$vertexAttrib2fv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttrib3f]: T$8.intAndnumAndnum__Tovoid$1(),
    [S$4.$vertexAttrib3fv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttrib4f]: T$8.intAndnumAndnum__Tovoid$2(),
    [S$4.$vertexAttrib4fv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttribPointer]: T$8.intAndintAndint__Tovoid$11(),
    [S$4.$viewport]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$readPixels]: T$8.intAndintAndint__Tovoid$8(),
    [S$4.$texImage2DUntyped]: T$8.intAndintAndint__Tovoid$12(),
    [S$4.$texImage2DTyped]: T$8.intAndintAndint__Tovoid$13(),
    [S$4.$texSubImage2DUntyped]: T$8.intAndintAndint__Tovoid$14(),
    [S$4.$texSubImage2DTyped]: T$8.intAndintAndint__Tovoid$15(),
    [S$4.$bufferDataTyped]: T$8.intAndTypedDataAndintTovoid(),
    [S$4.$bufferSubDataTyped]: T$8.intAndintAndTypedDataTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.RenderingContext))));
  dart.setStaticMethodSignature(web_gl.RenderingContext, () => ['__']);
  dart.setGetterSignature(web_gl.RenderingContext, () => dart.global.Object.setPrototypeOf({
    [S$.$canvas]: T$4.CanvasElement(),
    [S$4.$drawingBufferHeight]: T$.intN(),
    [S$4.$drawingBufferWidth]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_gl.RenderingContext))));
  dart.setStaticGetterSignature(web_gl.RenderingContext, () => ['supported']);
  dart.setLibraryUri(web_gl.RenderingContext, I[179]);
  dart.registerExtension("WebGLRenderingContext", web_gl.RenderingContext);
  web_gl.RenderingContext2 = class RenderingContext2 extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.RenderingContext2.__();
    }
    get [S$.$canvas]() {
      return this.canvas;
    }
    [S$4.$beginQuery](...args) {
      return this.beginQuery.apply(this, args);
    }
    [S$4.$beginTransformFeedback](...args) {
      return this.beginTransformFeedback.apply(this, args);
    }
    [S$4.$bindBufferBase](...args) {
      return this.bindBufferBase.apply(this, args);
    }
    [S$4.$bindBufferRange](...args) {
      return this.bindBufferRange.apply(this, args);
    }
    [S$4.$bindSampler](...args) {
      return this.bindSampler.apply(this, args);
    }
    [S$4.$bindTransformFeedback](...args) {
      return this.bindTransformFeedback.apply(this, args);
    }
    [S$4.$bindVertexArray](...args) {
      return this.bindVertexArray.apply(this, args);
    }
    [S$4.$blitFramebuffer](...args) {
      return this.blitFramebuffer.apply(this, args);
    }
    [S$4.$bufferData2](...args) {
      return this.bufferData.apply(this, args);
    }
    [S$4.$bufferSubData2](...args) {
      return this.bufferSubData.apply(this, args);
    }
    [S$4.$clearBufferfi](...args) {
      return this.clearBufferfi.apply(this, args);
    }
    [S$4.$clearBufferfv](...args) {
      return this.clearBufferfv.apply(this, args);
    }
    [S$4.$clearBufferiv](...args) {
      return this.clearBufferiv.apply(this, args);
    }
    [S$4.$clearBufferuiv](...args) {
      return this.clearBufferuiv.apply(this, args);
    }
    [S$4.$clientWaitSync](...args) {
      return this.clientWaitSync.apply(this, args);
    }
    [S$4.$compressedTexImage2D2](...args) {
      return this.compressedTexImage2D.apply(this, args);
    }
    [S$4.$compressedTexImage2D3](...args) {
      return this.compressedTexImage2D.apply(this, args);
    }
    [S$4.$compressedTexImage3D](...args) {
      return this.compressedTexImage3D.apply(this, args);
    }
    [S$4.$compressedTexImage3D2](...args) {
      return this.compressedTexImage3D.apply(this, args);
    }
    [S$4.$compressedTexSubImage2D2](...args) {
      return this.compressedTexSubImage2D.apply(this, args);
    }
    [S$4.$compressedTexSubImage2D3](...args) {
      return this.compressedTexSubImage2D.apply(this, args);
    }
    [S$4.$compressedTexSubImage3D](...args) {
      return this.compressedTexSubImage3D.apply(this, args);
    }
    [S$4.$compressedTexSubImage3D2](...args) {
      return this.compressedTexSubImage3D.apply(this, args);
    }
    [S$4.$copyBufferSubData](...args) {
      return this.copyBufferSubData.apply(this, args);
    }
    [S$4.$copyTexSubImage3D](...args) {
      return this.copyTexSubImage3D.apply(this, args);
    }
    [S$4.$createQuery](...args) {
      return this.createQuery.apply(this, args);
    }
    [S$4.$createSampler](...args) {
      return this.createSampler.apply(this, args);
    }
    [S$4.$createTransformFeedback](...args) {
      return this.createTransformFeedback.apply(this, args);
    }
    [S$4.$createVertexArray](...args) {
      return this.createVertexArray.apply(this, args);
    }
    [S$4.$deleteQuery](...args) {
      return this.deleteQuery.apply(this, args);
    }
    [S$4.$deleteSampler](...args) {
      return this.deleteSampler.apply(this, args);
    }
    [S$4.$deleteSync](...args) {
      return this.deleteSync.apply(this, args);
    }
    [S$4.$deleteTransformFeedback](...args) {
      return this.deleteTransformFeedback.apply(this, args);
    }
    [S$4.$deleteVertexArray](...args) {
      return this.deleteVertexArray.apply(this, args);
    }
    [S$4.$drawArraysInstanced](...args) {
      return this.drawArraysInstanced.apply(this, args);
    }
    [S$4.$drawBuffers](...args) {
      return this.drawBuffers.apply(this, args);
    }
    [S$4.$drawElementsInstanced](...args) {
      return this.drawElementsInstanced.apply(this, args);
    }
    [S$4.$drawRangeElements](...args) {
      return this.drawRangeElements.apply(this, args);
    }
    [S$4.$endQuery](...args) {
      return this.endQuery.apply(this, args);
    }
    [S$4.$endTransformFeedback](...args) {
      return this.endTransformFeedback.apply(this, args);
    }
    [S$4.$fenceSync](...args) {
      return this.fenceSync.apply(this, args);
    }
    [S$4.$framebufferTextureLayer](...args) {
      return this.framebufferTextureLayer.apply(this, args);
    }
    [S$4.$getActiveUniformBlockName](...args) {
      return this.getActiveUniformBlockName.apply(this, args);
    }
    [S$4.$getActiveUniformBlockParameter](...args) {
      return this.getActiveUniformBlockParameter.apply(this, args);
    }
    [S$4.$getActiveUniforms](...args) {
      return this.getActiveUniforms.apply(this, args);
    }
    [S$4.$getBufferSubData](...args) {
      return this.getBufferSubData.apply(this, args);
    }
    [S$4.$getFragDataLocation](...args) {
      return this.getFragDataLocation.apply(this, args);
    }
    [S$4.$getIndexedParameter](...args) {
      return this.getIndexedParameter.apply(this, args);
    }
    [S$4.$getInternalformatParameter](...args) {
      return this.getInternalformatParameter.apply(this, args);
    }
    [S$4.$getQuery](...args) {
      return this.getQuery.apply(this, args);
    }
    [S$4.$getQueryParameter](...args) {
      return this.getQueryParameter.apply(this, args);
    }
    [S$4.$getSamplerParameter](...args) {
      return this.getSamplerParameter.apply(this, args);
    }
    [S$4.$getSyncParameter](...args) {
      return this.getSyncParameter.apply(this, args);
    }
    [S$4.$getTransformFeedbackVarying](...args) {
      return this.getTransformFeedbackVarying.apply(this, args);
    }
    [S$4.$getUniformBlockIndex](...args) {
      return this.getUniformBlockIndex.apply(this, args);
    }
    [S$4.$getUniformIndices](program, uniformNames) {
      if (program == null) dart.nullFailed(I[180], 1541, 40, "program");
      if (uniformNames == null) dart.nullFailed(I[180], 1541, 62, "uniformNames");
      let uniformNames_1 = html_common.convertDartToNative_StringArray(uniformNames);
      return this[S$4._getUniformIndices_1](program, uniformNames_1);
    }
    [S$4._getUniformIndices_1](...args) {
      return this.getUniformIndices.apply(this, args);
    }
    [S$4.$invalidateFramebuffer](...args) {
      return this.invalidateFramebuffer.apply(this, args);
    }
    [S$4.$invalidateSubFramebuffer](...args) {
      return this.invalidateSubFramebuffer.apply(this, args);
    }
    [S$4.$isQuery](...args) {
      return this.isQuery.apply(this, args);
    }
    [S$4.$isSampler](...args) {
      return this.isSampler.apply(this, args);
    }
    [S$4.$isSync](...args) {
      return this.isSync.apply(this, args);
    }
    [S$4.$isTransformFeedback](...args) {
      return this.isTransformFeedback.apply(this, args);
    }
    [S$4.$isVertexArray](...args) {
      return this.isVertexArray.apply(this, args);
    }
    [S$4.$pauseTransformFeedback](...args) {
      return this.pauseTransformFeedback.apply(this, args);
    }
    [S$4.$readBuffer](...args) {
      return this.readBuffer.apply(this, args);
    }
    [S$4.$readPixels2](...args) {
      return this.readPixels.apply(this, args);
    }
    [S$4.$renderbufferStorageMultisample](...args) {
      return this.renderbufferStorageMultisample.apply(this, args);
    }
    [S$4.$resumeTransformFeedback](...args) {
      return this.resumeTransformFeedback.apply(this, args);
    }
    [S$4.$samplerParameterf](...args) {
      return this.samplerParameterf.apply(this, args);
    }
    [S$4.$samplerParameteri](...args) {
      return this.samplerParameteri.apply(this, args);
    }
    [S$4.$texImage2D2](target, level, internalformat, width, height, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video, srcOffset = null) {
      if (target == null) dart.nullFailed(I[180], 1583, 11, "target");
      if (level == null) dart.nullFailed(I[180], 1584, 11, "level");
      if (internalformat == null) dart.nullFailed(I[180], 1585, 11, "internalformat");
      if (width == null) dart.nullFailed(I[180], 1586, 11, "width");
      if (height == null) dart.nullFailed(I[180], 1587, 11, "height");
      if (border == null) dart.nullFailed(I[180], 1588, 11, "border");
      if (format == null) dart.nullFailed(I[180], 1589, 11, "format");
      if (type == null) dart.nullFailed(I[180], 1590, 11, "type");
      if (T$.int()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texImage2D2_1](target, level, internalformat, width, height, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (T$4.ImageData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        let data_1 = html_common.convertDartToNative_ImageData(bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        this[S$4._texImage2D2_2](target, level, internalformat, width, height, border, format, type, data_1);
        return;
      }
      if (T$8.ImageElement$1()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texImage2D2_3](target, level, internalformat, width, height, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (T$4.CanvasElement()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texImage2D2_4](target, level, internalformat, width, height, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (T$8.VideoElement()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texImage2D2_5](target, level, internalformat, width, height, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (T$5.ImageBitmap()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texImage2D2_6](target, level, internalformat, width, height, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (srcOffset != null && T$8.TypedData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video)) {
        this[S$4._texImage2D2_7](target, level, internalformat, width, height, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video, srcOffset);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$4._texImage2D2_1](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D2_2](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D2_3](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D2_4](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D2_5](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D2_6](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D2_7](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4.$texImage3D](target, level, internalformat, width, height, depth, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video, srcOffset = null) {
      if (target == null) dart.nullFailed(I[180], 1719, 11, "target");
      if (level == null) dart.nullFailed(I[180], 1720, 11, "level");
      if (internalformat == null) dart.nullFailed(I[180], 1721, 11, "internalformat");
      if (width == null) dart.nullFailed(I[180], 1722, 11, "width");
      if (height == null) dart.nullFailed(I[180], 1723, 11, "height");
      if (depth == null) dart.nullFailed(I[180], 1724, 11, "depth");
      if (border == null) dart.nullFailed(I[180], 1725, 11, "border");
      if (format == null) dart.nullFailed(I[180], 1726, 11, "format");
      if (type == null) dart.nullFailed(I[180], 1727, 11, "type");
      if (T$.int()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texImage3D_1](target, level, internalformat, width, height, depth, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (T$4.ImageData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        let data_1 = html_common.convertDartToNative_ImageData(bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        this[S$4._texImage3D_2](target, level, internalformat, width, height, depth, border, format, type, data_1);
        return;
      }
      if (T$8.ImageElement$1()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texImage3D_3](target, level, internalformat, width, height, depth, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (T$4.CanvasElement()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texImage3D_4](target, level, internalformat, width, height, depth, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (T$8.VideoElement()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texImage3D_5](target, level, internalformat, width, height, depth, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (T$5.ImageBitmap()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texImage3D_6](target, level, internalformat, width, height, depth, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if ((T$8.TypedData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) || bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video == null) && srcOffset == null) {
        this[S$4._texImage3D_7](target, level, internalformat, width, height, depth, border, format, type, T$8.TypedDataN()[_as](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video));
        return;
      }
      if (srcOffset != null && T$8.TypedData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video)) {
        this[S$4._texImage3D_8](target, level, internalformat, width, height, depth, border, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video, srcOffset);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$4._texImage3D_1](...args) {
      return this.texImage3D.apply(this, args);
    }
    [S$4._texImage3D_2](...args) {
      return this.texImage3D.apply(this, args);
    }
    [S$4._texImage3D_3](...args) {
      return this.texImage3D.apply(this, args);
    }
    [S$4._texImage3D_4](...args) {
      return this.texImage3D.apply(this, args);
    }
    [S$4._texImage3D_5](...args) {
      return this.texImage3D.apply(this, args);
    }
    [S$4._texImage3D_6](...args) {
      return this.texImage3D.apply(this, args);
    }
    [S$4._texImage3D_7](...args) {
      return this.texImage3D.apply(this, args);
    }
    [S$4._texImage3D_8](...args) {
      return this.texImage3D.apply(this, args);
    }
    [S$4.$texStorage2D](...args) {
      return this.texStorage2D.apply(this, args);
    }
    [S$4.$texStorage3D](...args) {
      return this.texStorage3D.apply(this, args);
    }
    [S$4.$texSubImage2D2](target, level, xoffset, yoffset, width, height, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video, srcOffset = null) {
      if (target == null) dart.nullFailed(I[180], 1889, 11, "target");
      if (level == null) dart.nullFailed(I[180], 1890, 11, "level");
      if (xoffset == null) dart.nullFailed(I[180], 1891, 11, "xoffset");
      if (yoffset == null) dart.nullFailed(I[180], 1892, 11, "yoffset");
      if (width == null) dart.nullFailed(I[180], 1893, 11, "width");
      if (height == null) dart.nullFailed(I[180], 1894, 11, "height");
      if (format == null) dart.nullFailed(I[180], 1895, 11, "format");
      if (type == null) dart.nullFailed(I[180], 1896, 11, "type");
      if (T$.int()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texSubImage2D2_1](target, level, xoffset, yoffset, width, height, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (T$4.ImageData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        let data_1 = html_common.convertDartToNative_ImageData(bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        this[S$4._texSubImage2D2_2](target, level, xoffset, yoffset, width, height, format, type, data_1);
        return;
      }
      if (T$8.ImageElement$1()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texSubImage2D2_3](target, level, xoffset, yoffset, width, height, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (T$4.CanvasElement()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texSubImage2D2_4](target, level, xoffset, yoffset, width, height, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (T$8.VideoElement()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texSubImage2D2_5](target, level, xoffset, yoffset, width, height, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (T$5.ImageBitmap()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video) && srcOffset == null) {
        this[S$4._texSubImage2D2_6](target, level, xoffset, yoffset, width, height, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video);
        return;
      }
      if (srcOffset != null && T$8.TypedData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video)) {
        this[S$4._texSubImage2D2_7](target, level, xoffset, yoffset, width, height, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_srcData_OR_video, srcOffset);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$4._texSubImage2D2_1](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D2_2](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D2_3](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D2_4](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D2_5](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D2_6](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D2_7](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4.$texSubImage3D](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video, srcOffset = null) {
      if (target == null) dart.nullFailed(I[180], 2025, 11, "target");
      if (level == null) dart.nullFailed(I[180], 2026, 11, "level");
      if (xoffset == null) dart.nullFailed(I[180], 2027, 11, "xoffset");
      if (yoffset == null) dart.nullFailed(I[180], 2028, 11, "yoffset");
      if (zoffset == null) dart.nullFailed(I[180], 2029, 11, "zoffset");
      if (width == null) dart.nullFailed(I[180], 2030, 11, "width");
      if (height == null) dart.nullFailed(I[180], 2031, 11, "height");
      if (depth == null) dart.nullFailed(I[180], 2032, 11, "depth");
      if (format == null) dart.nullFailed(I[180], 2033, 11, "format");
      if (type == null) dart.nullFailed(I[180], 2034, 11, "type");
      if (T$.int()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texSubImage3D_1](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (T$4.ImageData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        let data_1 = html_common.convertDartToNative_ImageData(bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        this[S$4._texSubImage3D_2](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, data_1);
        return;
      }
      if (T$8.ImageElement$1()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texSubImage3D_3](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (T$4.CanvasElement()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texSubImage3D_4](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (T$8.VideoElement()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texSubImage3D_5](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (T$5.ImageBitmap()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texSubImage3D_6](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (T$8.TypedData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video) && srcOffset == null) {
        this[S$4._texSubImage3D_7](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video);
        return;
      }
      if (srcOffset != null && T$8.TypedData()[_is](bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video)) {
        this[S$4._texSubImage3D_8](target, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bitmap_OR_canvas_OR_data_OR_image_OR_offset_OR_pixels_OR_video, srcOffset);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$4._texSubImage3D_1](...args) {
      return this.texSubImage3D.apply(this, args);
    }
    [S$4._texSubImage3D_2](...args) {
      return this.texSubImage3D.apply(this, args);
    }
    [S$4._texSubImage3D_3](...args) {
      return this.texSubImage3D.apply(this, args);
    }
    [S$4._texSubImage3D_4](...args) {
      return this.texSubImage3D.apply(this, args);
    }
    [S$4._texSubImage3D_5](...args) {
      return this.texSubImage3D.apply(this, args);
    }
    [S$4._texSubImage3D_6](...args) {
      return this.texSubImage3D.apply(this, args);
    }
    [S$4._texSubImage3D_7](...args) {
      return this.texSubImage3D.apply(this, args);
    }
    [S$4._texSubImage3D_8](...args) {
      return this.texSubImage3D.apply(this, args);
    }
    [S$4.$transformFeedbackVaryings](program, varyings, bufferMode) {
      if (program == null) dart.nullFailed(I[180], 2195, 15, "program");
      if (varyings == null) dart.nullFailed(I[180], 2195, 37, "varyings");
      if (bufferMode == null) dart.nullFailed(I[180], 2195, 51, "bufferMode");
      let varyings_1 = html_common.convertDartToNative_StringArray(varyings);
      this[S$4._transformFeedbackVaryings_1](program, varyings_1, bufferMode);
      return;
    }
    [S$4._transformFeedbackVaryings_1](...args) {
      return this.transformFeedbackVaryings.apply(this, args);
    }
    [S$4.$uniform1fv2](...args) {
      return this.uniform1fv.apply(this, args);
    }
    [S$4.$uniform1iv2](...args) {
      return this.uniform1iv.apply(this, args);
    }
    [S$4.$uniform1ui](...args) {
      return this.uniform1ui.apply(this, args);
    }
    [S$4.$uniform1uiv](...args) {
      return this.uniform1uiv.apply(this, args);
    }
    [S$4.$uniform2fv2](...args) {
      return this.uniform2fv.apply(this, args);
    }
    [S$4.$uniform2iv2](...args) {
      return this.uniform2iv.apply(this, args);
    }
    [S$4.$uniform2ui](...args) {
      return this.uniform2ui.apply(this, args);
    }
    [S$4.$uniform2uiv](...args) {
      return this.uniform2uiv.apply(this, args);
    }
    [S$4.$uniform3fv2](...args) {
      return this.uniform3fv.apply(this, args);
    }
    [S$4.$uniform3iv2](...args) {
      return this.uniform3iv.apply(this, args);
    }
    [S$4.$uniform3ui](...args) {
      return this.uniform3ui.apply(this, args);
    }
    [S$4.$uniform3uiv](...args) {
      return this.uniform3uiv.apply(this, args);
    }
    [S$4.$uniform4fv2](...args) {
      return this.uniform4fv.apply(this, args);
    }
    [S$4.$uniform4iv2](...args) {
      return this.uniform4iv.apply(this, args);
    }
    [S$4.$uniform4ui](...args) {
      return this.uniform4ui.apply(this, args);
    }
    [S$4.$uniform4uiv](...args) {
      return this.uniform4uiv.apply(this, args);
    }
    [S$4.$uniformBlockBinding](...args) {
      return this.uniformBlockBinding.apply(this, args);
    }
    [S$4.$uniformMatrix2fv2](...args) {
      return this.uniformMatrix2fv.apply(this, args);
    }
    [S$4.$uniformMatrix2x3fv](...args) {
      return this.uniformMatrix2x3fv.apply(this, args);
    }
    [S$4.$uniformMatrix2x4fv](...args) {
      return this.uniformMatrix2x4fv.apply(this, args);
    }
    [S$4.$uniformMatrix3fv2](...args) {
      return this.uniformMatrix3fv.apply(this, args);
    }
    [S$4.$uniformMatrix3x2fv](...args) {
      return this.uniformMatrix3x2fv.apply(this, args);
    }
    [S$4.$uniformMatrix3x4fv](...args) {
      return this.uniformMatrix3x4fv.apply(this, args);
    }
    [S$4.$uniformMatrix4fv2](...args) {
      return this.uniformMatrix4fv.apply(this, args);
    }
    [S$4.$uniformMatrix4x2fv](...args) {
      return this.uniformMatrix4x2fv.apply(this, args);
    }
    [S$4.$uniformMatrix4x3fv](...args) {
      return this.uniformMatrix4x3fv.apply(this, args);
    }
    [S$4.$vertexAttribDivisor](...args) {
      return this.vertexAttribDivisor.apply(this, args);
    }
    [S$4.$vertexAttribI4i](...args) {
      return this.vertexAttribI4i.apply(this, args);
    }
    [S$4.$vertexAttribI4iv](...args) {
      return this.vertexAttribI4iv.apply(this, args);
    }
    [S$4.$vertexAttribI4ui](...args) {
      return this.vertexAttribI4ui.apply(this, args);
    }
    [S$4.$vertexAttribI4uiv](...args) {
      return this.vertexAttribI4uiv.apply(this, args);
    }
    [S$4.$vertexAttribIPointer](...args) {
      return this.vertexAttribIPointer.apply(this, args);
    }
    [S$4.$waitSync](...args) {
      return this.waitSync.apply(this, args);
    }
    get [S$4.$drawingBufferHeight]() {
      return this.drawingBufferHeight;
    }
    get [S$4.$drawingBufferWidth]() {
      return this.drawingBufferWidth;
    }
    [S$4.$activeTexture](...args) {
      return this.activeTexture.apply(this, args);
    }
    [S$4.$attachShader](...args) {
      return this.attachShader.apply(this, args);
    }
    [S$4.$bindAttribLocation](...args) {
      return this.bindAttribLocation.apply(this, args);
    }
    [S$4.$bindBuffer](...args) {
      return this.bindBuffer.apply(this, args);
    }
    [S$4.$bindFramebuffer](...args) {
      return this.bindFramebuffer.apply(this, args);
    }
    [S$4.$bindRenderbuffer](...args) {
      return this.bindRenderbuffer.apply(this, args);
    }
    [S$4.$bindTexture](...args) {
      return this.bindTexture.apply(this, args);
    }
    [S$4.$blendColor](...args) {
      return this.blendColor.apply(this, args);
    }
    [S$4.$blendEquation](...args) {
      return this.blendEquation.apply(this, args);
    }
    [S$4.$blendEquationSeparate](...args) {
      return this.blendEquationSeparate.apply(this, args);
    }
    [S$4.$blendFunc](...args) {
      return this.blendFunc.apply(this, args);
    }
    [S$4.$blendFuncSeparate](...args) {
      return this.blendFuncSeparate.apply(this, args);
    }
    [S$4.$bufferData](...args) {
      return this.bufferData.apply(this, args);
    }
    [S$4.$bufferSubData](...args) {
      return this.bufferSubData.apply(this, args);
    }
    [S$4.$checkFramebufferStatus](...args) {
      return this.checkFramebufferStatus.apply(this, args);
    }
    [$clear](...args) {
      return this.clear.apply(this, args);
    }
    [S$4.$clearColor](...args) {
      return this.clearColor.apply(this, args);
    }
    [S$4.$clearDepth](...args) {
      return this.clearDepth.apply(this, args);
    }
    [S$4.$clearStencil](...args) {
      return this.clearStencil.apply(this, args);
    }
    [S$4.$colorMask](...args) {
      return this.colorMask.apply(this, args);
    }
    [S$2.$commit]() {
      return js_util.promiseToFuture(T$.dynamic(), this.commit());
    }
    [S$4.$compileShader](...args) {
      return this.compileShader.apply(this, args);
    }
    [S$4.$compressedTexImage2D](...args) {
      return this.compressedTexImage2D.apply(this, args);
    }
    [S$4.$compressedTexSubImage2D](...args) {
      return this.compressedTexSubImage2D.apply(this, args);
    }
    [S$4.$copyTexImage2D](...args) {
      return this.copyTexImage2D.apply(this, args);
    }
    [S$4.$copyTexSubImage2D](...args) {
      return this.copyTexSubImage2D.apply(this, args);
    }
    [S$4.$createBuffer](...args) {
      return this.createBuffer.apply(this, args);
    }
    [S$4.$createFramebuffer](...args) {
      return this.createFramebuffer.apply(this, args);
    }
    [S$4.$createProgram](...args) {
      return this.createProgram.apply(this, args);
    }
    [S$4.$createRenderbuffer](...args) {
      return this.createRenderbuffer.apply(this, args);
    }
    [S$4.$createShader](...args) {
      return this.createShader.apply(this, args);
    }
    [S$4.$createTexture](...args) {
      return this.createTexture.apply(this, args);
    }
    [S$4.$cullFace](...args) {
      return this.cullFace.apply(this, args);
    }
    [S$4.$deleteBuffer](...args) {
      return this.deleteBuffer.apply(this, args);
    }
    [S$4.$deleteFramebuffer](...args) {
      return this.deleteFramebuffer.apply(this, args);
    }
    [S$4.$deleteProgram](...args) {
      return this.deleteProgram.apply(this, args);
    }
    [S$4.$deleteRenderbuffer](...args) {
      return this.deleteRenderbuffer.apply(this, args);
    }
    [S$4.$deleteShader](...args) {
      return this.deleteShader.apply(this, args);
    }
    [S$4.$deleteTexture](...args) {
      return this.deleteTexture.apply(this, args);
    }
    [S$4.$depthFunc](...args) {
      return this.depthFunc.apply(this, args);
    }
    [S$4.$depthMask](...args) {
      return this.depthMask.apply(this, args);
    }
    [S$4.$depthRange](...args) {
      return this.depthRange.apply(this, args);
    }
    [S$4.$detachShader](...args) {
      return this.detachShader.apply(this, args);
    }
    [S$2.$disable](...args) {
      return this.disable.apply(this, args);
    }
    [S$4.$disableVertexAttribArray](...args) {
      return this.disableVertexAttribArray.apply(this, args);
    }
    [S$4.$drawArrays](...args) {
      return this.drawArrays.apply(this, args);
    }
    [S$4.$drawElements](...args) {
      return this.drawElements.apply(this, args);
    }
    [S$2.$enable](...args) {
      return this.enable.apply(this, args);
    }
    [S$4.$enableVertexAttribArray](...args) {
      return this.enableVertexAttribArray.apply(this, args);
    }
    [S$.$finish](...args) {
      return this.finish.apply(this, args);
    }
    [S$4.$flush](...args) {
      return this.flush.apply(this, args);
    }
    [S$4.$framebufferRenderbuffer](...args) {
      return this.framebufferRenderbuffer.apply(this, args);
    }
    [S$4.$framebufferTexture2D](...args) {
      return this.framebufferTexture2D.apply(this, args);
    }
    [S$4.$frontFace](...args) {
      return this.frontFace.apply(this, args);
    }
    [S$4.$generateMipmap](...args) {
      return this.generateMipmap.apply(this, args);
    }
    [S$4.$getActiveAttrib](...args) {
      return this.getActiveAttrib.apply(this, args);
    }
    [S$4.$getActiveUniform](...args) {
      return this.getActiveUniform.apply(this, args);
    }
    [S$4.$getAttachedShaders](...args) {
      return this.getAttachedShaders.apply(this, args);
    }
    [S$4.$getAttribLocation](...args) {
      return this.getAttribLocation.apply(this, args);
    }
    [S$4.$getBufferParameter](...args) {
      return this.getBufferParameter.apply(this, args);
    }
    [S$.$getContextAttributes]() {
      return html_common.convertNativeToDart_Dictionary(this[S$4._getContextAttributes_1$1]());
    }
    [S$4._getContextAttributes_1$1](...args) {
      return this.getContextAttributes.apply(this, args);
    }
    [S$4.$getError](...args) {
      return this.getError.apply(this, args);
    }
    [S$4.$getExtension](...args) {
      return this.getExtension.apply(this, args);
    }
    [S$4.$getFramebufferAttachmentParameter](...args) {
      return this.getFramebufferAttachmentParameter.apply(this, args);
    }
    [S$3.$getParameter](...args) {
      return this.getParameter.apply(this, args);
    }
    [S$4.$getProgramInfoLog](...args) {
      return this.getProgramInfoLog.apply(this, args);
    }
    [S$4.$getProgramParameter](...args) {
      return this.getProgramParameter.apply(this, args);
    }
    [S$4.$getRenderbufferParameter](...args) {
      return this.getRenderbufferParameter.apply(this, args);
    }
    [S$4.$getShaderInfoLog](...args) {
      return this.getShaderInfoLog.apply(this, args);
    }
    [S$4.$getShaderParameter](...args) {
      return this.getShaderParameter.apply(this, args);
    }
    [S$4.$getShaderPrecisionFormat](...args) {
      return this.getShaderPrecisionFormat.apply(this, args);
    }
    [S$4.$getShaderSource](...args) {
      return this.getShaderSource.apply(this, args);
    }
    [S$4.$getSupportedExtensions](...args) {
      return this.getSupportedExtensions.apply(this, args);
    }
    [S$4.$getTexParameter](...args) {
      return this.getTexParameter.apply(this, args);
    }
    [S$4.$getUniform](...args) {
      return this.getUniform.apply(this, args);
    }
    [S$4.$getUniformLocation](...args) {
      return this.getUniformLocation.apply(this, args);
    }
    [S$4.$getVertexAttrib](...args) {
      return this.getVertexAttrib.apply(this, args);
    }
    [S$4.$getVertexAttribOffset](...args) {
      return this.getVertexAttribOffset.apply(this, args);
    }
    [S$4.$hint](...args) {
      return this.hint.apply(this, args);
    }
    [S$4.$isBuffer](...args) {
      return this.isBuffer.apply(this, args);
    }
    [S$.$isContextLost](...args) {
      return this.isContextLost.apply(this, args);
    }
    [S$4.$isEnabled](...args) {
      return this.isEnabled.apply(this, args);
    }
    [S$4.$isFramebuffer](...args) {
      return this.isFramebuffer.apply(this, args);
    }
    [S$4.$isProgram](...args) {
      return this.isProgram.apply(this, args);
    }
    [S$4.$isRenderbuffer](...args) {
      return this.isRenderbuffer.apply(this, args);
    }
    [S$4.$isShader](...args) {
      return this.isShader.apply(this, args);
    }
    [S$4.$isTexture](...args) {
      return this.isTexture.apply(this, args);
    }
    [S$.$lineWidth](...args) {
      return this.lineWidth.apply(this, args);
    }
    [S$4.$linkProgram](...args) {
      return this.linkProgram.apply(this, args);
    }
    [S$4.$pixelStorei](...args) {
      return this.pixelStorei.apply(this, args);
    }
    [S$4.$polygonOffset](...args) {
      return this.polygonOffset.apply(this, args);
    }
    [S$4._readPixels](...args) {
      return this.readPixels.apply(this, args);
    }
    [S$4.$renderbufferStorage](...args) {
      return this.renderbufferStorage.apply(this, args);
    }
    [S$4.$sampleCoverage](...args) {
      return this.sampleCoverage.apply(this, args);
    }
    [S$4.$scissor](...args) {
      return this.scissor.apply(this, args);
    }
    [S$4.$shaderSource](...args) {
      return this.shaderSource.apply(this, args);
    }
    [S$4.$stencilFunc](...args) {
      return this.stencilFunc.apply(this, args);
    }
    [S$4.$stencilFuncSeparate](...args) {
      return this.stencilFuncSeparate.apply(this, args);
    }
    [S$4.$stencilMask](...args) {
      return this.stencilMask.apply(this, args);
    }
    [S$4.$stencilMaskSeparate](...args) {
      return this.stencilMaskSeparate.apply(this, args);
    }
    [S$4.$stencilOp](...args) {
      return this.stencilOp.apply(this, args);
    }
    [S$4.$stencilOpSeparate](...args) {
      return this.stencilOpSeparate.apply(this, args);
    }
    [S$4.$texImage2D](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video, format = null, type = null, pixels = null) {
      if (target == null) dart.nullFailed(I[180], 2537, 11, "target");
      if (level == null) dart.nullFailed(I[180], 2538, 11, "level");
      if (internalformat == null) dart.nullFailed(I[180], 2539, 11, "internalformat");
      if (format_OR_width == null) dart.nullFailed(I[180], 2540, 11, "format_OR_width");
      if (height_OR_type == null) dart.nullFailed(I[180], 2541, 11, "height_OR_type");
      if (type != null && format != null && T$.int()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video)) {
        this[S$4._texImage2D_1](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video, format, type, pixels);
        return;
      }
      if (T$4.ImageData()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        let pixels_1 = html_common.convertDartToNative_ImageData(bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        this[S$4._texImage2D_2](target, level, internalformat, format_OR_width, height_OR_type, pixels_1);
        return;
      }
      if (T$8.ImageElement$1()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        this[S$4._texImage2D_3](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$4.CanvasElement()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        this[S$4._texImage2D_4](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$8.VideoElement()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        this[S$4._texImage2D_5](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$5.ImageBitmap()[_is](bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video) && format == null && type == null && pixels == null) {
        this[S$4._texImage2D_6](target, level, internalformat, format_OR_width, height_OR_type, bitmap_OR_border_OR_canvas_OR_image_OR_pixels_OR_video);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$4._texImage2D_1](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_2](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_3](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_4](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_5](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4._texImage2D_6](...args) {
      return this.texImage2D.apply(this, args);
    }
    [S$4.$texParameterf](...args) {
      return this.texParameterf.apply(this, args);
    }
    [S$4.$texParameteri](...args) {
      return this.texParameteri.apply(this, args);
    }
    [S$4.$texSubImage2D](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video, type = null, pixels = null) {
      if (target == null) dart.nullFailed(I[180], 2654, 11, "target");
      if (level == null) dart.nullFailed(I[180], 2655, 11, "level");
      if (xoffset == null) dart.nullFailed(I[180], 2656, 11, "xoffset");
      if (yoffset == null) dart.nullFailed(I[180], 2657, 11, "yoffset");
      if (format_OR_width == null) dart.nullFailed(I[180], 2658, 11, "format_OR_width");
      if (height_OR_type == null) dart.nullFailed(I[180], 2659, 11, "height_OR_type");
      if (type != null && T$.int()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video)) {
        this[S$4._texSubImage2D_1](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video, type, pixels);
        return;
      }
      if (T$4.ImageData()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        let pixels_1 = html_common.convertDartToNative_ImageData(bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        this[S$4._texSubImage2D_2](target, level, xoffset, yoffset, format_OR_width, height_OR_type, pixels_1);
        return;
      }
      if (T$8.ImageElement$1()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        this[S$4._texSubImage2D_3](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$4.CanvasElement()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        this[S$4._texSubImage2D_4](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$8.VideoElement()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        this[S$4._texSubImage2D_5](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        return;
      }
      if (T$5.ImageBitmap()[_is](bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video) && type == null && pixels == null) {
        this[S$4._texSubImage2D_6](target, level, xoffset, yoffset, format_OR_width, height_OR_type, bitmap_OR_canvas_OR_format_OR_image_OR_pixels_OR_video);
        return;
      }
      dart.throw(new core.ArgumentError.new("Incorrect number or type of arguments"));
    }
    [S$4._texSubImage2D_1](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_2](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_3](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_4](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_5](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4._texSubImage2D_6](...args) {
      return this.texSubImage2D.apply(this, args);
    }
    [S$4.$uniform1f](...args) {
      return this.uniform1f.apply(this, args);
    }
    [S$4.$uniform1fv](...args) {
      return this.uniform1fv.apply(this, args);
    }
    [S$4.$uniform1i](...args) {
      return this.uniform1i.apply(this, args);
    }
    [S$4.$uniform1iv](...args) {
      return this.uniform1iv.apply(this, args);
    }
    [S$4.$uniform2f](...args) {
      return this.uniform2f.apply(this, args);
    }
    [S$4.$uniform2fv](...args) {
      return this.uniform2fv.apply(this, args);
    }
    [S$4.$uniform2i](...args) {
      return this.uniform2i.apply(this, args);
    }
    [S$4.$uniform2iv](...args) {
      return this.uniform2iv.apply(this, args);
    }
    [S$4.$uniform3f](...args) {
      return this.uniform3f.apply(this, args);
    }
    [S$4.$uniform3fv](...args) {
      return this.uniform3fv.apply(this, args);
    }
    [S$4.$uniform3i](...args) {
      return this.uniform3i.apply(this, args);
    }
    [S$4.$uniform3iv](...args) {
      return this.uniform3iv.apply(this, args);
    }
    [S$4.$uniform4f](...args) {
      return this.uniform4f.apply(this, args);
    }
    [S$4.$uniform4fv](...args) {
      return this.uniform4fv.apply(this, args);
    }
    [S$4.$uniform4i](...args) {
      return this.uniform4i.apply(this, args);
    }
    [S$4.$uniform4iv](...args) {
      return this.uniform4iv.apply(this, args);
    }
    [S$4.$uniformMatrix2fv](...args) {
      return this.uniformMatrix2fv.apply(this, args);
    }
    [S$4.$uniformMatrix3fv](...args) {
      return this.uniformMatrix3fv.apply(this, args);
    }
    [S$4.$uniformMatrix4fv](...args) {
      return this.uniformMatrix4fv.apply(this, args);
    }
    [S$4.$useProgram](...args) {
      return this.useProgram.apply(this, args);
    }
    [S$4.$validateProgram](...args) {
      return this.validateProgram.apply(this, args);
    }
    [S$4.$vertexAttrib1f](...args) {
      return this.vertexAttrib1f.apply(this, args);
    }
    [S$4.$vertexAttrib1fv](...args) {
      return this.vertexAttrib1fv.apply(this, args);
    }
    [S$4.$vertexAttrib2f](...args) {
      return this.vertexAttrib2f.apply(this, args);
    }
    [S$4.$vertexAttrib2fv](...args) {
      return this.vertexAttrib2fv.apply(this, args);
    }
    [S$4.$vertexAttrib3f](...args) {
      return this.vertexAttrib3f.apply(this, args);
    }
    [S$4.$vertexAttrib3fv](...args) {
      return this.vertexAttrib3fv.apply(this, args);
    }
    [S$4.$vertexAttrib4f](...args) {
      return this.vertexAttrib4f.apply(this, args);
    }
    [S$4.$vertexAttrib4fv](...args) {
      return this.vertexAttrib4fv.apply(this, args);
    }
    [S$4.$vertexAttribPointer](...args) {
      return this.vertexAttribPointer.apply(this, args);
    }
    [S$4.$viewport](...args) {
      return this.viewport.apply(this, args);
    }
    [S$4.$readPixels](x, y, width, height, format, type, pixels) {
      if (x == null) dart.nullFailed(I[180], 2830, 23, "x");
      if (y == null) dart.nullFailed(I[180], 2830, 30, "y");
      if (width == null) dart.nullFailed(I[180], 2830, 37, "width");
      if (height == null) dart.nullFailed(I[180], 2830, 48, "height");
      if (format == null) dart.nullFailed(I[180], 2830, 60, "format");
      if (type == null) dart.nullFailed(I[180], 2830, 72, "type");
      if (pixels == null) dart.nullFailed(I[180], 2831, 17, "pixels");
      this[S$4._readPixels](x, y, width, height, format, type, pixels);
    }
  };
  dart.addRtiResources(web_gl.RenderingContext2, ["web_gl|RenderingContext2", "web_gl|_WebGL2RenderingContextBase", "web_gl|_WebGLRenderingContextBase", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setMethodSignature(web_gl.RenderingContext2, () => dart.global.Object.setPrototypeOf({
    [S$4.$beginQuery]: T$8.intAndQueryTovoid(),
    [S$4.$beginTransformFeedback]: T$.intTovoid(),
    [S$4.$bindBufferBase]: T$8.intAndintAndBufferNTovoid(),
    [S$4.$bindBufferRange]: T$8.intAndintAndBufferN__Tovoid(),
    [S$4.$bindSampler]: T$8.intAndSamplerNTovoid(),
    [S$4.$bindTransformFeedback]: T$8.intAndTransformFeedbackNTovoid(),
    [S$4.$bindVertexArray]: T$8.VertexArrayObjectNTovoid(),
    [S$4.$blitFramebuffer]: T$8.intAndintAndint__Tovoid$16(),
    [S$4.$bufferData2]: T$8.intAndTypedDataAndint__Tovoid(),
    [S$4.$bufferSubData2]: T$8.intAndintAndTypedData__Tovoid(),
    [S$4.$clearBufferfi]: T$8.intAndintAndnum__Tovoid(),
    [S$4.$clearBufferfv]: T$8.intAndintAnddynamic__Tovoid(),
    [S$4.$clearBufferiv]: T$8.intAndintAnddynamic__Tovoid(),
    [S$4.$clearBufferuiv]: T$8.intAndintAnddynamic__Tovoid(),
    [S$4.$clientWaitSync]: T$8.SyncAndintAndintToint(),
    [S$4.$compressedTexImage2D2]: T$8.intAndintAndint__Tovoid$17(),
    [S$4.$compressedTexImage2D3]: T$8.intAndintAndint__Tovoid$5(),
    [S$4.$compressedTexImage3D]: T$8.intAndintAndint__Tovoid$18(),
    [S$4.$compressedTexImage3D2]: T$8.intAndintAndint__Tovoid$19(),
    [S$4.$compressedTexSubImage2D2]: T$8.intAndintAndint__Tovoid$20(),
    [S$4.$compressedTexSubImage2D3]: T$8.intAndintAndint__Tovoid$19(),
    [S$4.$compressedTexSubImage3D]: T$8.intAndintAndint__Tovoid$21(),
    [S$4.$compressedTexSubImage3D2]: T$8.intAndintAndint__Tovoid$22(),
    [S$4.$copyBufferSubData]: T$7.intAndintAndint__Tovoid$2(),
    [S$4.$copyTexSubImage3D]: T$8.intAndintAndint__Tovoid$19(),
    [S$4.$createQuery]: T$8.VoidToQueryN(),
    [S$4.$createSampler]: T$8.VoidToSamplerN(),
    [S$4.$createTransformFeedback]: T$8.VoidToTransformFeedbackN(),
    [S$4.$createVertexArray]: T$8.VoidToVertexArrayObjectN(),
    [S$4.$deleteQuery]: T$8.QueryNTovoid(),
    [S$4.$deleteSampler]: T$8.SamplerNTovoid(),
    [S$4.$deleteSync]: T$8.SyncNTovoid(),
    [S$4.$deleteTransformFeedback]: T$8.TransformFeedbackNTovoid(),
    [S$4.$deleteVertexArray]: T$8.VertexArrayObjectNTovoid(),
    [S$4.$drawArraysInstanced]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$drawBuffers]: T$.ListOfintTovoid(),
    [S$4.$drawElementsInstanced]: T$7.intAndintAndint__Tovoid$2(),
    [S$4.$drawRangeElements]: T$8.intAndintAndint__Tovoid$23(),
    [S$4.$endQuery]: T$.intTovoid(),
    [S$4.$endTransformFeedback]: T$.VoidTovoid(),
    [S$4.$fenceSync]: T$8.intAndintToSyncN(),
    [S$4.$framebufferTextureLayer]: T$8.intAndintAndTextureN__Tovoid(),
    [S$4.$getActiveUniformBlockName]: T$8.ProgramAndintToStringN(),
    [S$4.$getActiveUniformBlockParameter]: T$8.ProgramAndintAndintToObjectN(),
    [S$4.$getActiveUniforms]: T$8.ProgramAndListOfintAndintToObjectN(),
    [S$4.$getBufferSubData]: T$8.intAndintAndTypedData__Tovoid$1(),
    [S$4.$getFragDataLocation]: T$8.ProgramAndStringToint(),
    [S$4.$getIndexedParameter]: T$7.intAndintToObjectN(),
    [S$4.$getInternalformatParameter]: T$8.intAndintAndintToObjectN(),
    [S$4.$getQuery]: T$7.intAndintToObjectN(),
    [S$4.$getQueryParameter]: T$8.QueryAndintToObjectN(),
    [S$4.$getSamplerParameter]: T$8.SamplerAndintToObjectN(),
    [S$4.$getSyncParameter]: T$8.SyncAndintToObjectN(),
    [S$4.$getTransformFeedbackVarying]: T$8.ProgramAndintToActiveInfoN(),
    [S$4.$getUniformBlockIndex]: T$8.ProgramAndStringToint(),
    [S$4.$getUniformIndices]: T$8.ProgramAndListOfStringToListNOfint(),
    [S$4._getUniformIndices_1]: T$8.ProgramAndListToListNOfint(),
    [S$4.$invalidateFramebuffer]: T$8.intAndListOfintTovoid(),
    [S$4.$invalidateSubFramebuffer]: T$8.intAndListOfintAndint__Tovoid(),
    [S$4.$isQuery]: T$8.QueryNTobool(),
    [S$4.$isSampler]: T$8.SamplerNTobool(),
    [S$4.$isSync]: T$8.SyncNTobool(),
    [S$4.$isTransformFeedback]: T$8.TransformFeedbackNTobool(),
    [S$4.$isVertexArray]: T$8.VertexArrayObjectNTobool(),
    [S$4.$pauseTransformFeedback]: T$.VoidTovoid(),
    [S$4.$readBuffer]: T$.intTovoid(),
    [S$4.$readPixels2]: T$8.intAndintAndint__Tovoid$24(),
    [S$4.$renderbufferStorageMultisample]: T$7.intAndintAndint__Tovoid$2(),
    [S$4.$resumeTransformFeedback]: T$.VoidTovoid(),
    [S$4.$samplerParameterf]: T$8.SamplerAndintAndnumTovoid(),
    [S$4.$samplerParameteri]: T$8.SamplerAndintAndintTovoid(),
    [S$4.$texImage2D2]: T$8.intAndintAndint__Tovoid$25(),
    [S$4._texImage2D2_1]: T$8.dynamicAnddynamicAnddynamic__Tovoid$14(),
    [S$4._texImage2D2_2]: T$8.dynamicAnddynamicAnddynamic__Tovoid$15(),
    [S$4._texImage2D2_3]: T$8.dynamicAnddynamicAnddynamic__Tovoid$16(),
    [S$4._texImage2D2_4]: T$8.dynamicAnddynamicAnddynamic__Tovoid$17(),
    [S$4._texImage2D2_5]: T$8.dynamicAnddynamicAnddynamic__Tovoid$18(),
    [S$4._texImage2D2_6]: T$8.dynamicAnddynamicAnddynamic__Tovoid$19(),
    [S$4._texImage2D2_7]: T$8.dynamicAnddynamicAnddynamic__Tovoid$20(),
    [S$4.$texImage3D]: T$8.intAndintAndint__Tovoid$26(),
    [S$4._texImage3D_1]: T$8.dynamicAnddynamicAnddynamic__Tovoid$21(),
    [S$4._texImage3D_2]: T$8.dynamicAnddynamicAnddynamic__Tovoid$22(),
    [S$4._texImage3D_3]: T$8.dynamicAnddynamicAnddynamic__Tovoid$23(),
    [S$4._texImage3D_4]: T$8.dynamicAnddynamicAnddynamic__Tovoid$24(),
    [S$4._texImage3D_5]: T$8.dynamicAnddynamicAnddynamic__Tovoid$25(),
    [S$4._texImage3D_6]: T$8.dynamicAnddynamicAnddynamic__Tovoid$26(),
    [S$4._texImage3D_7]: T$8.dynamicAnddynamicAnddynamic__Tovoid$27(),
    [S$4._texImage3D_8]: T$8.dynamicAnddynamicAnddynamic__Tovoid$28(),
    [S$4.$texStorage2D]: T$7.intAndintAndint__Tovoid$2(),
    [S$4.$texStorage3D]: T$8.intAndintAndint__Tovoid$23(),
    [S$4.$texSubImage2D2]: T$8.intAndintAndint__Tovoid$25(),
    [S$4._texSubImage2D2_1]: T$8.dynamicAnddynamicAnddynamic__Tovoid$14(),
    [S$4._texSubImage2D2_2]: T$8.dynamicAnddynamicAnddynamic__Tovoid$15(),
    [S$4._texSubImage2D2_3]: T$8.dynamicAnddynamicAnddynamic__Tovoid$16(),
    [S$4._texSubImage2D2_4]: T$8.dynamicAnddynamicAnddynamic__Tovoid$17(),
    [S$4._texSubImage2D2_5]: T$8.dynamicAnddynamicAnddynamic__Tovoid$18(),
    [S$4._texSubImage2D2_6]: T$8.dynamicAnddynamicAnddynamic__Tovoid$19(),
    [S$4._texSubImage2D2_7]: T$8.dynamicAnddynamicAnddynamic__Tovoid$20(),
    [S$4.$texSubImage3D]: T$8.intAndintAndint__Tovoid$27(),
    [S$4._texSubImage3D_1]: T$8.dynamicAnddynamicAnddynamic__Tovoid$29(),
    [S$4._texSubImage3D_2]: T$8.dynamicAnddynamicAnddynamic__Tovoid$30(),
    [S$4._texSubImage3D_3]: T$8.dynamicAnddynamicAnddynamic__Tovoid$31(),
    [S$4._texSubImage3D_4]: T$8.dynamicAnddynamicAnddynamic__Tovoid$32(),
    [S$4._texSubImage3D_5]: T$8.dynamicAnddynamicAnddynamic__Tovoid$33(),
    [S$4._texSubImage3D_6]: T$8.dynamicAnddynamicAnddynamic__Tovoid$34(),
    [S$4._texSubImage3D_7]: T$8.dynamicAnddynamicAnddynamic__Tovoid$35(),
    [S$4._texSubImage3D_8]: T$8.dynamicAnddynamicAnddynamic__Tovoid$36(),
    [S$4.$transformFeedbackVaryings]: T$8.ProgramAndListOfStringAndintTovoid(),
    [S$4._transformFeedbackVaryings_1]: T$8.ProgramAndListAnddynamicTovoid(),
    [S$4.$uniform1fv2]: T$8.UniformLocationNAnddynamicAndint__Tovoid(),
    [S$4.$uniform1iv2]: T$8.UniformLocationNAnddynamicAndint__Tovoid(),
    [S$4.$uniform1ui]: T$8.UniformLocationNAndintTovoid(),
    [S$4.$uniform1uiv]: T$8.UniformLocationNAnddynamicAndintN__Tovoid(),
    [S$4.$uniform2fv2]: T$8.UniformLocationNAnddynamicAndint__Tovoid(),
    [S$4.$uniform2iv2]: T$8.UniformLocationNAnddynamicAndint__Tovoid(),
    [S$4.$uniform2ui]: T$8.UniformLocationNAndintAndintTovoid(),
    [S$4.$uniform2uiv]: T$8.UniformLocationNAnddynamicAndintN__Tovoid(),
    [S$4.$uniform3fv2]: T$8.UniformLocationNAnddynamicAndint__Tovoid(),
    [S$4.$uniform3iv2]: T$8.UniformLocationNAnddynamicAndint__Tovoid(),
    [S$4.$uniform3ui]: T$8.UniformLocationNAndintAndint__Tovoid(),
    [S$4.$uniform3uiv]: T$8.UniformLocationNAnddynamicAndintN__Tovoid(),
    [S$4.$uniform4fv2]: T$8.UniformLocationNAnddynamicAndint__Tovoid(),
    [S$4.$uniform4iv2]: T$8.UniformLocationNAnddynamicAndint__Tovoid(),
    [S$4.$uniform4ui]: T$8.UniformLocationNAndintAndint__Tovoid$1(),
    [S$4.$uniform4uiv]: T$8.UniformLocationNAnddynamicAndintN__Tovoid(),
    [S$4.$uniformBlockBinding]: T$8.ProgramAndintAndintTovoid(),
    [S$4.$uniformMatrix2fv2]: T$8.UniformLocationNAndboolAnddynamic__Tovoid(),
    [S$4.$uniformMatrix2x3fv]: T$8.UniformLocationNAndboolAnddynamic__Tovoid$1(),
    [S$4.$uniformMatrix2x4fv]: T$8.UniformLocationNAndboolAnddynamic__Tovoid$1(),
    [S$4.$uniformMatrix3fv2]: T$8.UniformLocationNAndboolAnddynamic__Tovoid(),
    [S$4.$uniformMatrix3x2fv]: T$8.UniformLocationNAndboolAnddynamic__Tovoid$1(),
    [S$4.$uniformMatrix3x4fv]: T$8.UniformLocationNAndboolAnddynamic__Tovoid$1(),
    [S$4.$uniformMatrix4fv2]: T$8.UniformLocationNAndboolAnddynamic__Tovoid(),
    [S$4.$uniformMatrix4x2fv]: T$8.UniformLocationNAndboolAnddynamic__Tovoid$1(),
    [S$4.$uniformMatrix4x3fv]: T$8.UniformLocationNAndboolAnddynamic__Tovoid$1(),
    [S$4.$vertexAttribDivisor]: T$.intAndintTovoid(),
    [S$4.$vertexAttribI4i]: T$7.intAndintAndint__Tovoid$2(),
    [S$4.$vertexAttribI4iv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttribI4ui]: T$7.intAndintAndint__Tovoid$2(),
    [S$4.$vertexAttribI4uiv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttribIPointer]: T$7.intAndintAndint__Tovoid$2(),
    [S$4.$waitSync]: T$8.SyncAndintAndintTovoid(),
    [S$4.$activeTexture]: T$.intTovoid(),
    [S$4.$attachShader]: T$8.ProgramAndShaderTovoid(),
    [S$4.$bindAttribLocation]: T$8.ProgramAndintAndStringTovoid(),
    [S$4.$bindBuffer]: T$8.intAndBufferNTovoid(),
    [S$4.$bindFramebuffer]: T$8.intAndFramebufferNTovoid(),
    [S$4.$bindRenderbuffer]: T$8.intAndRenderbufferNTovoid(),
    [S$4.$bindTexture]: T$8.intAndTextureNTovoid(),
    [S$4.$blendColor]: T$4.numAndnumAndnum__Tovoid(),
    [S$4.$blendEquation]: T$.intTovoid(),
    [S$4.$blendEquationSeparate]: T$.intAndintTovoid(),
    [S$4.$blendFunc]: T$.intAndintTovoid(),
    [S$4.$blendFuncSeparate]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$bufferData]: T$8.intAnddynamicAndintTovoid(),
    [S$4.$bufferSubData]: T$8.intAndintAnddynamicTovoid(),
    [S$4.$checkFramebufferStatus]: T$.intToint(),
    [$clear]: T$.intTovoid(),
    [S$4.$clearColor]: T$4.numAndnumAndnum__Tovoid(),
    [S$4.$clearDepth]: T$2.numTovoid(),
    [S$4.$clearStencil]: T$.intTovoid(),
    [S$4.$colorMask]: T$8.boolAndboolAndbool__Tovoid(),
    [S$2.$commit]: T$.VoidToFuture(),
    [S$4.$compileShader]: T$8.ShaderTovoid(),
    [S$4.$compressedTexImage2D]: T$8.intAndintAndint__Tovoid$3(),
    [S$4.$compressedTexSubImage2D]: T$8.intAndintAndint__Tovoid$4(),
    [S$4.$copyTexImage2D]: T$8.intAndintAndint__Tovoid$5(),
    [S$4.$copyTexSubImage2D]: T$8.intAndintAndint__Tovoid$5(),
    [S$4.$createBuffer]: T$7.VoidToBuffer(),
    [S$4.$createFramebuffer]: T$7.VoidToFramebuffer(),
    [S$4.$createProgram]: T$7.VoidToProgram(),
    [S$4.$createRenderbuffer]: T$7.VoidToRenderbuffer(),
    [S$4.$createShader]: T$8.intToShader(),
    [S$4.$createTexture]: T$8.VoidToTexture(),
    [S$4.$cullFace]: T$.intTovoid(),
    [S$4.$deleteBuffer]: T$8.BufferNTovoid(),
    [S$4.$deleteFramebuffer]: T$8.FramebufferNTovoid(),
    [S$4.$deleteProgram]: T$8.ProgramNTovoid(),
    [S$4.$deleteRenderbuffer]: T$8.RenderbufferNTovoid(),
    [S$4.$deleteShader]: T$8.ShaderNTovoid(),
    [S$4.$deleteTexture]: T$8.TextureNTovoid(),
    [S$4.$depthFunc]: T$.intTovoid(),
    [S$4.$depthMask]: T$1.boolTovoid(),
    [S$4.$depthRange]: T$4.numAndnumTovoid(),
    [S$4.$detachShader]: T$8.ProgramAndShaderTovoid(),
    [S$2.$disable]: T$.intTovoid(),
    [S$4.$disableVertexAttribArray]: T$.intTovoid(),
    [S$4.$drawArrays]: T$8.intAndintAndintTovoid(),
    [S$4.$drawElements]: T$7.intAndintAndint__Tovoid$1(),
    [S$2.$enable]: T$.intTovoid(),
    [S$4.$enableVertexAttribArray]: T$.intTovoid(),
    [S$.$finish]: T$.VoidTovoid(),
    [S$4.$flush]: T$.VoidTovoid(),
    [S$4.$framebufferRenderbuffer]: T$8.intAndintAndint__Tovoid$6(),
    [S$4.$framebufferTexture2D]: T$8.intAndintAndint__Tovoid$7(),
    [S$4.$frontFace]: T$.intTovoid(),
    [S$4.$generateMipmap]: T$.intTovoid(),
    [S$4.$getActiveAttrib]: T$8.ProgramAndintToActiveInfo(),
    [S$4.$getActiveUniform]: T$8.ProgramAndintToActiveInfo(),
    [S$4.$getAttachedShaders]: T$8.ProgramToListNOfShader(),
    [S$4.$getAttribLocation]: T$8.ProgramAndStringToint(),
    [S$4.$getBufferParameter]: T$7.intAndintToObjectN(),
    [S$.$getContextAttributes]: T$8.VoidToMapN(),
    [S$4._getContextAttributes_1$1]: T$.VoidTodynamic(),
    [S$4.$getError]: T$.VoidToint(),
    [S$4.$getExtension]: T$4.StringToObjectN(),
    [S$4.$getFramebufferAttachmentParameter]: T$8.intAndintAndintToObjectN(),
    [S$3.$getParameter]: T$.intToObjectN(),
    [S$4.$getProgramInfoLog]: T$8.ProgramToStringN(),
    [S$4.$getProgramParameter]: T$8.ProgramAndintToObjectN(),
    [S$4.$getRenderbufferParameter]: T$7.intAndintToObjectN(),
    [S$4.$getShaderInfoLog]: T$7.ShaderToStringN(),
    [S$4.$getShaderParameter]: T$8.ShaderAndintToObjectN(),
    [S$4.$getShaderPrecisionFormat]: T$8.intAndintToShaderPrecisionFormat(),
    [S$4.$getShaderSource]: T$7.ShaderToStringN(),
    [S$4.$getSupportedExtensions]: T$8.VoidToListNOfString(),
    [S$4.$getTexParameter]: T$7.intAndintToObjectN(),
    [S$4.$getUniform]: T$8.ProgramAndUniformLocationToObjectN(),
    [S$4.$getUniformLocation]: T$8.ProgramAndStringToUniformLocation(),
    [S$4.$getVertexAttrib]: T$7.intAndintToObjectN(),
    [S$4.$getVertexAttribOffset]: T$.intAndintToint(),
    [S$4.$hint]: T$.intAndintTovoid(),
    [S$4.$isBuffer]: T$8.BufferNTobool(),
    [S$.$isContextLost]: T$.VoidTobool(),
    [S$4.$isEnabled]: T$.intTobool(),
    [S$4.$isFramebuffer]: T$8.FramebufferNTobool(),
    [S$4.$isProgram]: T$8.ProgramNTobool(),
    [S$4.$isRenderbuffer]: T$8.RenderbufferNTobool(),
    [S$4.$isShader]: T$8.ShaderNTobool(),
    [S$4.$isTexture]: T$8.TextureNTobool(),
    [S$.$lineWidth]: T$2.numTovoid(),
    [S$4.$linkProgram]: T$8.ProgramTovoid(),
    [S$4.$pixelStorei]: T$.intAndintTovoid(),
    [S$4.$polygonOffset]: T$4.numAndnumTovoid(),
    [S$4._readPixels]: T$8.intAndintAndint__Tovoid$8(),
    [S$4.$renderbufferStorage]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$sampleCoverage]: T$8.numAndboolTovoid(),
    [S$4.$scissor]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$shaderSource]: T$8.ShaderAndStringTovoid(),
    [S$4.$stencilFunc]: T$8.intAndintAndintTovoid(),
    [S$4.$stencilFuncSeparate]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$stencilMask]: T$.intTovoid(),
    [S$4.$stencilMaskSeparate]: T$.intAndintTovoid(),
    [S$4.$stencilOp]: T$8.intAndintAndintTovoid(),
    [S$4.$stencilOpSeparate]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$texImage2D]: T$8.intAndintAndint__Tovoid$9(),
    [S$4._texImage2D_1]: T$8.dynamicAnddynamicAnddynamic__Tovoid$3(),
    [S$4._texImage2D_2]: T$8.dynamicAnddynamicAnddynamic__Tovoid$4(),
    [S$4._texImage2D_3]: T$8.dynamicAnddynamicAnddynamic__Tovoid$5(),
    [S$4._texImage2D_4]: T$8.dynamicAnddynamicAnddynamic__Tovoid$6(),
    [S$4._texImage2D_5]: T$8.dynamicAnddynamicAnddynamic__Tovoid$7(),
    [S$4._texImage2D_6]: T$8.dynamicAnddynamicAnddynamic__Tovoid$8(),
    [S$4.$texParameterf]: T$8.intAndintAndnumTovoid(),
    [S$4.$texParameteri]: T$8.intAndintAndintTovoid(),
    [S$4.$texSubImage2D]: T$8.intAndintAndint__Tovoid$10(),
    [S$4._texSubImage2D_1]: T$8.dynamicAnddynamicAnddynamic__Tovoid$9(),
    [S$4._texSubImage2D_2]: T$4.dynamicAnddynamicAnddynamic__Tovoid(),
    [S$4._texSubImage2D_3]: T$8.dynamicAnddynamicAnddynamic__Tovoid$10(),
    [S$4._texSubImage2D_4]: T$8.dynamicAnddynamicAnddynamic__Tovoid$11(),
    [S$4._texSubImage2D_5]: T$8.dynamicAnddynamicAnddynamic__Tovoid$12(),
    [S$4._texSubImage2D_6]: T$8.dynamicAnddynamicAnddynamic__Tovoid$13(),
    [S$4.$uniform1f]: T$8.UniformLocationNAndnumTovoid(),
    [S$4.$uniform1fv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform1i]: T$8.UniformLocationNAndintTovoid(),
    [S$4.$uniform1iv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform2f]: T$8.UniformLocationNAndnumAndnumTovoid(),
    [S$4.$uniform2fv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform2i]: T$8.UniformLocationNAndintAndintTovoid(),
    [S$4.$uniform2iv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform3f]: T$8.UniformLocationNAndnumAndnum__Tovoid(),
    [S$4.$uniform3fv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform3i]: T$8.UniformLocationNAndintAndint__Tovoid(),
    [S$4.$uniform3iv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform4f]: T$8.UniformLocationNAndnumAndnum__Tovoid$1(),
    [S$4.$uniform4fv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniform4i]: T$8.UniformLocationNAndintAndint__Tovoid$1(),
    [S$4.$uniform4iv]: T$8.UniformLocationNAnddynamicTovoid(),
    [S$4.$uniformMatrix2fv]: T$8.UniformLocationNAndboolAnddynamicTovoid(),
    [S$4.$uniformMatrix3fv]: T$8.UniformLocationNAndboolAnddynamicTovoid(),
    [S$4.$uniformMatrix4fv]: T$8.UniformLocationNAndboolAnddynamicTovoid(),
    [S$4.$useProgram]: T$8.ProgramNTovoid(),
    [S$4.$validateProgram]: T$8.ProgramTovoid(),
    [S$4.$vertexAttrib1f]: T$7.intAndnumTovoid(),
    [S$4.$vertexAttrib1fv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttrib2f]: T$8.intAndnumAndnumTovoid(),
    [S$4.$vertexAttrib2fv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttrib3f]: T$8.intAndnumAndnum__Tovoid$1(),
    [S$4.$vertexAttrib3fv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttrib4f]: T$8.intAndnumAndnum__Tovoid$2(),
    [S$4.$vertexAttrib4fv]: T$.intAnddynamicTovoid(),
    [S$4.$vertexAttribPointer]: T$8.intAndintAndint__Tovoid$11(),
    [S$4.$viewport]: T$7.intAndintAndint__Tovoid$1(),
    [S$4.$readPixels]: T$8.intAndintAndint__Tovoid$3()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(web_gl.RenderingContext2))));
  dart.setStaticMethodSignature(web_gl.RenderingContext2, () => ['__']);
  dart.setGetterSignature(web_gl.RenderingContext2, () => dart.global.Object.setPrototypeOf({
    [S$.$canvas]: T$8.CanvasN(),
    [S$4.$drawingBufferHeight]: T$.intN(),
    [S$4.$drawingBufferWidth]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_gl.RenderingContext2))));
  dart.setLibraryUri(web_gl.RenderingContext2, I[179]);
  dart.registerExtension("WebGL2RenderingContext", web_gl.RenderingContext2);
  web_gl.Sampler = class Sampler extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Sampler.__();
    }
  };
  dart.addRtiResources(web_gl.Sampler, ["web_gl|Sampler"]);
  dart.setStaticMethodSignature(web_gl.Sampler, () => ['__']);
  dart.setLibraryUri(web_gl.Sampler, I[179]);
  dart.registerExtension("WebGLSampler", web_gl.Sampler);
  web_gl.Shader = class Shader extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Shader.__();
    }
  };
  dart.addRtiResources(web_gl.Shader, ["web_gl|Shader"]);
  dart.setStaticMethodSignature(web_gl.Shader, () => ['__']);
  dart.setLibraryUri(web_gl.Shader, I[179]);
  dart.registerExtension("WebGLShader", web_gl.Shader);
  web_gl.ShaderPrecisionFormat = class ShaderPrecisionFormat extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.ShaderPrecisionFormat.__();
    }
    get [S$4.$precision]() {
      return this.precision;
    }
    get [S$4.$rangeMax]() {
      return this.rangeMax;
    }
    get [S$4.$rangeMin]() {
      return this.rangeMin;
    }
  };
  dart.addRtiResources(web_gl.ShaderPrecisionFormat, ["web_gl|ShaderPrecisionFormat"]);
  dart.setStaticMethodSignature(web_gl.ShaderPrecisionFormat, () => ['__']);
  dart.setGetterSignature(web_gl.ShaderPrecisionFormat, () => dart.global.Object.setPrototypeOf({
    [S$4.$precision]: T$.int(),
    [S$4.$rangeMax]: T$.int(),
    [S$4.$rangeMin]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_gl.ShaderPrecisionFormat))));
  dart.setLibraryUri(web_gl.ShaderPrecisionFormat, I[179]);
  dart.registerExtension("WebGLShaderPrecisionFormat", web_gl.ShaderPrecisionFormat);
  web_gl.Sync = class Sync extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Sync.__();
    }
  };
  dart.addRtiResources(web_gl.Sync, ["web_gl|Sync"]);
  dart.setStaticMethodSignature(web_gl.Sync, () => ['__']);
  dart.setLibraryUri(web_gl.Sync, I[179]);
  dart.registerExtension("WebGLSync", web_gl.Sync);
  web_gl.Texture = class Texture extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.Texture.__();
    }
    get [S$4.$lastUploadedVideoFrameWasSkipped]() {
      return this.lastUploadedVideoFrameWasSkipped;
    }
    get [S$4.$lastUploadedVideoHeight]() {
      return this.lastUploadedVideoHeight;
    }
    get [S$4.$lastUploadedVideoTimestamp]() {
      return this.lastUploadedVideoTimestamp;
    }
    get [S$4.$lastUploadedVideoWidth]() {
      return this.lastUploadedVideoWidth;
    }
  };
  dart.addRtiResources(web_gl.Texture, ["web_gl|Texture"]);
  dart.setStaticMethodSignature(web_gl.Texture, () => ['__']);
  dart.setGetterSignature(web_gl.Texture, () => dart.global.Object.setPrototypeOf({
    [S$4.$lastUploadedVideoFrameWasSkipped]: T$.boolN(),
    [S$4.$lastUploadedVideoHeight]: T$.intN(),
    [S$4.$lastUploadedVideoTimestamp]: T$3.numN(),
    [S$4.$lastUploadedVideoWidth]: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(web_gl.Texture))));
  dart.setLibraryUri(web_gl.Texture, I[179]);
  dart.registerExtension("WebGLTexture", web_gl.Texture);
  web_gl.TimerQueryExt = class TimerQueryExt extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.TimerQueryExt.__();
    }
  };
  dart.addRtiResources(web_gl.TimerQueryExt, ["web_gl|TimerQueryExt"]);
  dart.setStaticMethodSignature(web_gl.TimerQueryExt, () => ['__']);
  dart.setLibraryUri(web_gl.TimerQueryExt, I[179]);
  dart.registerExtension("WebGLTimerQueryEXT", web_gl.TimerQueryExt);
  web_gl.TransformFeedback = class TransformFeedback extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.TransformFeedback.__();
    }
  };
  dart.addRtiResources(web_gl.TransformFeedback, ["web_gl|TransformFeedback"]);
  dart.setStaticMethodSignature(web_gl.TransformFeedback, () => ['__']);
  dart.setLibraryUri(web_gl.TransformFeedback, I[179]);
  dart.registerExtension("WebGLTransformFeedback", web_gl.TransformFeedback);
  web_gl.UniformLocation = class UniformLocation extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.UniformLocation.__();
    }
  };
  dart.addRtiResources(web_gl.UniformLocation, ["web_gl|UniformLocation"]);
  dart.setStaticMethodSignature(web_gl.UniformLocation, () => ['__']);
  dart.setLibraryUri(web_gl.UniformLocation, I[179]);
  dart.registerExtension("WebGLUniformLocation", web_gl.UniformLocation);
  web_gl.VertexArrayObject = class VertexArrayObject extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.VertexArrayObject.__();
    }
  };
  dart.addRtiResources(web_gl.VertexArrayObject, ["web_gl|VertexArrayObject"]);
  dart.setStaticMethodSignature(web_gl.VertexArrayObject, () => ['__']);
  dart.setLibraryUri(web_gl.VertexArrayObject, I[179]);
  dart.registerExtension("WebGLVertexArrayObject", web_gl.VertexArrayObject);
  web_gl.VertexArrayObjectOes = class VertexArrayObjectOes extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl.VertexArrayObjectOes.__();
    }
  };
  dart.addRtiResources(web_gl.VertexArrayObjectOes, ["web_gl|VertexArrayObjectOes"]);
  dart.setStaticMethodSignature(web_gl.VertexArrayObjectOes, () => ['__']);
  dart.setLibraryUri(web_gl.VertexArrayObjectOes, I[179]);
  dart.registerExtension("WebGLVertexArrayObjectOES", web_gl.VertexArrayObjectOes);
  web_gl.WebGL = class WebGL extends core.Object {
    static ['_#_#tearOff']() {
      return web_gl.WebGL.__();
    }
  };
  (web_gl.WebGL[dart.mixinNew] = function() {
  }).prototype = web_gl.WebGL.prototype;
  dart.addRtiResources(web_gl.WebGL, ["web_gl|WebGL"]);
  dart.setStaticMethodSignature(web_gl.WebGL, () => ['__']);
  dart.setLibraryUri(web_gl.WebGL, I[179]);
  dart.setStaticFieldSignature(web_gl.WebGL, () => ['ACTIVE_ATTRIBUTES', 'ACTIVE_TEXTURE', 'ACTIVE_UNIFORMS', 'ACTIVE_UNIFORM_BLOCKS', 'ALIASED_LINE_WIDTH_RANGE', 'ALIASED_POINT_SIZE_RANGE', 'ALPHA', 'ALPHA_BITS', 'ALREADY_SIGNALED', 'ALWAYS', 'ANY_SAMPLES_PASSED', 'ANY_SAMPLES_PASSED_CONSERVATIVE', 'ARRAY_BUFFER', 'ARRAY_BUFFER_BINDING', 'ATTACHED_SHADERS', 'BACK', 'BLEND', 'BLEND_COLOR', 'BLEND_DST_ALPHA', 'BLEND_DST_RGB', 'BLEND_EQUATION', 'BLEND_EQUATION_ALPHA', 'BLEND_EQUATION_RGB', 'BLEND_SRC_ALPHA', 'BLEND_SRC_RGB', 'BLUE_BITS', 'BOOL', 'BOOL_VEC2', 'BOOL_VEC3', 'BOOL_VEC4', 'BROWSER_DEFAULT_WEBGL', 'BUFFER_SIZE', 'BUFFER_USAGE', 'BYTE', 'CCW', 'CLAMP_TO_EDGE', 'COLOR', 'COLOR_ATTACHMENT0', 'COLOR_ATTACHMENT0_WEBGL', 'COLOR_ATTACHMENT1', 'COLOR_ATTACHMENT10', 'COLOR_ATTACHMENT10_WEBGL', 'COLOR_ATTACHMENT11', 'COLOR_ATTACHMENT11_WEBGL', 'COLOR_ATTACHMENT12', 'COLOR_ATTACHMENT12_WEBGL', 'COLOR_ATTACHMENT13', 'COLOR_ATTACHMENT13_WEBGL', 'COLOR_ATTACHMENT14', 'COLOR_ATTACHMENT14_WEBGL', 'COLOR_ATTACHMENT15', 'COLOR_ATTACHMENT15_WEBGL', 'COLOR_ATTACHMENT1_WEBGL', 'COLOR_ATTACHMENT2', 'COLOR_ATTACHMENT2_WEBGL', 'COLOR_ATTACHMENT3', 'COLOR_ATTACHMENT3_WEBGL', 'COLOR_ATTACHMENT4', 'COLOR_ATTACHMENT4_WEBGL', 'COLOR_ATTACHMENT5', 'COLOR_ATTACHMENT5_WEBGL', 'COLOR_ATTACHMENT6', 'COLOR_ATTACHMENT6_WEBGL', 'COLOR_ATTACHMENT7', 'COLOR_ATTACHMENT7_WEBGL', 'COLOR_ATTACHMENT8', 'COLOR_ATTACHMENT8_WEBGL', 'COLOR_ATTACHMENT9', 'COLOR_ATTACHMENT9_WEBGL', 'COLOR_BUFFER_BIT', 'COLOR_CLEAR_VALUE', 'COLOR_WRITEMASK', 'COMPARE_REF_TO_TEXTURE', 'COMPILE_STATUS', 'COMPRESSED_TEXTURE_FORMATS', 'CONDITION_SATISFIED', 'CONSTANT_ALPHA', 'CONSTANT_COLOR', 'CONTEXT_LOST_WEBGL', 'COPY_READ_BUFFER', 'COPY_READ_BUFFER_BINDING', 'COPY_WRITE_BUFFER', 'COPY_WRITE_BUFFER_BINDING', 'CULL_FACE', 'CULL_FACE_MODE', 'CURRENT_PROGRAM', 'CURRENT_QUERY', 'CURRENT_VERTEX_ATTRIB', 'CW', 'DECR', 'DECR_WRAP', 'DELETE_STATUS', 'DEPTH', 'DEPTH24_STENCIL8', 'DEPTH32F_STENCIL8', 'DEPTH_ATTACHMENT', 'DEPTH_BITS', 'DEPTH_BUFFER_BIT', 'DEPTH_CLEAR_VALUE', 'DEPTH_COMPONENT', 'DEPTH_COMPONENT16', 'DEPTH_COMPONENT24', 'DEPTH_COMPONENT32F', 'DEPTH_FUNC', 'DEPTH_RANGE', 'DEPTH_STENCIL', 'DEPTH_STENCIL_ATTACHMENT', 'DEPTH_TEST', 'DEPTH_WRITEMASK', 'DITHER', 'DONT_CARE', 'DRAW_BUFFER0', 'DRAW_BUFFER0_WEBGL', 'DRAW_BUFFER1', 'DRAW_BUFFER10', 'DRAW_BUFFER10_WEBGL', 'DRAW_BUFFER11', 'DRAW_BUFFER11_WEBGL', 'DRAW_BUFFER12', 'DRAW_BUFFER12_WEBGL', 'DRAW_BUFFER13', 'DRAW_BUFFER13_WEBGL', 'DRAW_BUFFER14', 'DRAW_BUFFER14_WEBGL', 'DRAW_BUFFER15', 'DRAW_BUFFER15_WEBGL', 'DRAW_BUFFER1_WEBGL', 'DRAW_BUFFER2', 'DRAW_BUFFER2_WEBGL', 'DRAW_BUFFER3', 'DRAW_BUFFER3_WEBGL', 'DRAW_BUFFER4', 'DRAW_BUFFER4_WEBGL', 'DRAW_BUFFER5', 'DRAW_BUFFER5_WEBGL', 'DRAW_BUFFER6', 'DRAW_BUFFER6_WEBGL', 'DRAW_BUFFER7', 'DRAW_BUFFER7_WEBGL', 'DRAW_BUFFER8', 'DRAW_BUFFER8_WEBGL', 'DRAW_BUFFER9', 'DRAW_BUFFER9_WEBGL', 'DRAW_FRAMEBUFFER', 'DRAW_FRAMEBUFFER_BINDING', 'DST_ALPHA', 'DST_COLOR', 'DYNAMIC_COPY', 'DYNAMIC_DRAW', 'DYNAMIC_READ', 'ELEMENT_ARRAY_BUFFER', 'ELEMENT_ARRAY_BUFFER_BINDING', 'EQUAL', 'FASTEST', 'FLOAT', 'FLOAT_32_UNSIGNED_INT_24_8_REV', 'FLOAT_MAT2', 'FLOAT_MAT2x3', 'FLOAT_MAT2x4', 'FLOAT_MAT3', 'FLOAT_MAT3x2', 'FLOAT_MAT3x4', 'FLOAT_MAT4', 'FLOAT_MAT4x2', 'FLOAT_MAT4x3', 'FLOAT_VEC2', 'FLOAT_VEC3', 'FLOAT_VEC4', 'FRAGMENT_SHADER', 'FRAGMENT_SHADER_DERIVATIVE_HINT', 'FRAMEBUFFER', 'FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE', 'FRAMEBUFFER_ATTACHMENT_BLUE_SIZE', 'FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING', 'FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE', 'FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE', 'FRAMEBUFFER_ATTACHMENT_GREEN_SIZE', 'FRAMEBUFFER_ATTACHMENT_OBJECT_NAME', 'FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE', 'FRAMEBUFFER_ATTACHMENT_RED_SIZE', 'FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE', 'FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE', 'FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER', 'FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL', 'FRAMEBUFFER_BINDING', 'FRAMEBUFFER_COMPLETE', 'FRAMEBUFFER_DEFAULT', 'FRAMEBUFFER_INCOMPLETE_ATTACHMENT', 'FRAMEBUFFER_INCOMPLETE_DIMENSIONS', 'FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT', 'FRAMEBUFFER_INCOMPLETE_MULTISAMPLE', 'FRAMEBUFFER_UNSUPPORTED', 'FRONT', 'FRONT_AND_BACK', 'FRONT_FACE', 'FUNC_ADD', 'FUNC_REVERSE_SUBTRACT', 'FUNC_SUBTRACT', 'GENERATE_MIPMAP_HINT', 'GEQUAL', 'GREATER', 'GREEN_BITS', 'HALF_FLOAT', 'HIGH_FLOAT', 'HIGH_INT', 'IMPLEMENTATION_COLOR_READ_FORMAT', 'IMPLEMENTATION_COLOR_READ_TYPE', 'INCR', 'INCR_WRAP', 'INT', 'INTERLEAVED_ATTRIBS', 'INT_2_10_10_10_REV', 'INT_SAMPLER_2D', 'INT_SAMPLER_2D_ARRAY', 'INT_SAMPLER_3D', 'INT_SAMPLER_CUBE', 'INT_VEC2', 'INT_VEC3', 'INT_VEC4', 'INVALID_ENUM', 'INVALID_FRAMEBUFFER_OPERATION', 'INVALID_INDEX', 'INVALID_OPERATION', 'INVALID_VALUE', 'INVERT', 'KEEP', 'LEQUAL', 'LESS', 'LINEAR', 'LINEAR_MIPMAP_LINEAR', 'LINEAR_MIPMAP_NEAREST', 'LINES', 'LINE_LOOP', 'LINE_STRIP', 'LINE_WIDTH', 'LINK_STATUS', 'LOW_FLOAT', 'LOW_INT', 'LUMINANCE', 'LUMINANCE_ALPHA', 'MAX', 'MAX_3D_TEXTURE_SIZE', 'MAX_ARRAY_TEXTURE_LAYERS', 'MAX_CLIENT_WAIT_TIMEOUT_WEBGL', 'MAX_COLOR_ATTACHMENTS', 'MAX_COLOR_ATTACHMENTS_WEBGL', 'MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS', 'MAX_COMBINED_TEXTURE_IMAGE_UNITS', 'MAX_COMBINED_UNIFORM_BLOCKS', 'MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS', 'MAX_CUBE_MAP_TEXTURE_SIZE', 'MAX_DRAW_BUFFERS', 'MAX_DRAW_BUFFERS_WEBGL', 'MAX_ELEMENTS_INDICES', 'MAX_ELEMENTS_VERTICES', 'MAX_ELEMENT_INDEX', 'MAX_FRAGMENT_INPUT_COMPONENTS', 'MAX_FRAGMENT_UNIFORM_BLOCKS', 'MAX_FRAGMENT_UNIFORM_COMPONENTS', 'MAX_FRAGMENT_UNIFORM_VECTORS', 'MAX_PROGRAM_TEXEL_OFFSET', 'MAX_RENDERBUFFER_SIZE', 'MAX_SAMPLES', 'MAX_SERVER_WAIT_TIMEOUT', 'MAX_TEXTURE_IMAGE_UNITS', 'MAX_TEXTURE_LOD_BIAS', 'MAX_TEXTURE_SIZE', 'MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS', 'MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS', 'MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS', 'MAX_UNIFORM_BLOCK_SIZE', 'MAX_UNIFORM_BUFFER_BINDINGS', 'MAX_VARYING_COMPONENTS', 'MAX_VARYING_VECTORS', 'MAX_VERTEX_ATTRIBS', 'MAX_VERTEX_OUTPUT_COMPONENTS', 'MAX_VERTEX_TEXTURE_IMAGE_UNITS', 'MAX_VERTEX_UNIFORM_BLOCKS', 'MAX_VERTEX_UNIFORM_COMPONENTS', 'MAX_VERTEX_UNIFORM_VECTORS', 'MAX_VIEWPORT_DIMS', 'MEDIUM_FLOAT', 'MEDIUM_INT', 'MIN', 'MIN_PROGRAM_TEXEL_OFFSET', 'MIRRORED_REPEAT', 'NEAREST', 'NEAREST_MIPMAP_LINEAR', 'NEAREST_MIPMAP_NEAREST', 'NEVER', 'NICEST', 'NONE', 'NOTEQUAL', 'NO_ERROR', 'OBJECT_TYPE', 'ONE', 'ONE_MINUS_CONSTANT_ALPHA', 'ONE_MINUS_CONSTANT_COLOR', 'ONE_MINUS_DST_ALPHA', 'ONE_MINUS_DST_COLOR', 'ONE_MINUS_SRC_ALPHA', 'ONE_MINUS_SRC_COLOR', 'OUT_OF_MEMORY', 'PACK_ALIGNMENT', 'PACK_ROW_LENGTH', 'PACK_SKIP_PIXELS', 'PACK_SKIP_ROWS', 'PIXEL_PACK_BUFFER', 'PIXEL_PACK_BUFFER_BINDING', 'PIXEL_UNPACK_BUFFER', 'PIXEL_UNPACK_BUFFER_BINDING', 'POINTS', 'POLYGON_OFFSET_FACTOR', 'POLYGON_OFFSET_FILL', 'POLYGON_OFFSET_UNITS', 'QUERY_RESULT', 'QUERY_RESULT_AVAILABLE', 'R11F_G11F_B10F', 'R16F', 'R16I', 'R16UI', 'R32F', 'R32I', 'R32UI', 'R8', 'R8I', 'R8UI', 'R8_SNORM', 'RASTERIZER_DISCARD', 'READ_BUFFER', 'READ_FRAMEBUFFER', 'READ_FRAMEBUFFER_BINDING', 'RED', 'RED_BITS', 'RED_INTEGER', 'RENDERBUFFER', 'RENDERBUFFER_ALPHA_SIZE', 'RENDERBUFFER_BINDING', 'RENDERBUFFER_BLUE_SIZE', 'RENDERBUFFER_DEPTH_SIZE', 'RENDERBUFFER_GREEN_SIZE', 'RENDERBUFFER_HEIGHT', 'RENDERBUFFER_INTERNAL_FORMAT', 'RENDERBUFFER_RED_SIZE', 'RENDERBUFFER_SAMPLES', 'RENDERBUFFER_STENCIL_SIZE', 'RENDERBUFFER_WIDTH', 'RENDERER', 'REPEAT', 'REPLACE', 'RG', 'RG16F', 'RG16I', 'RG16UI', 'RG32F', 'RG32I', 'RG32UI', 'RG8', 'RG8I', 'RG8UI', 'RG8_SNORM', 'RGB', 'RGB10_A2', 'RGB10_A2UI', 'RGB16F', 'RGB16I', 'RGB16UI', 'RGB32F', 'RGB32I', 'RGB32UI', 'RGB565', 'RGB5_A1', 'RGB8', 'RGB8I', 'RGB8UI', 'RGB8_SNORM', 'RGB9_E5', 'RGBA', 'RGBA16F', 'RGBA16I', 'RGBA16UI', 'RGBA32F', 'RGBA32I', 'RGBA32UI', 'RGBA4', 'RGBA8', 'RGBA8I', 'RGBA8UI', 'RGBA8_SNORM', 'RGBA_INTEGER', 'RGB_INTEGER', 'RG_INTEGER', 'SAMPLER_2D', 'SAMPLER_2D_ARRAY', 'SAMPLER_2D_ARRAY_SHADOW', 'SAMPLER_2D_SHADOW', 'SAMPLER_3D', 'SAMPLER_BINDING', 'SAMPLER_CUBE', 'SAMPLER_CUBE_SHADOW', 'SAMPLES', 'SAMPLE_ALPHA_TO_COVERAGE', 'SAMPLE_BUFFERS', 'SAMPLE_COVERAGE', 'SAMPLE_COVERAGE_INVERT', 'SAMPLE_COVERAGE_VALUE', 'SCISSOR_BOX', 'SCISSOR_TEST', 'SEPARATE_ATTRIBS', 'SHADER_TYPE', 'SHADING_LANGUAGE_VERSION', 'SHORT', 'SIGNALED', 'SIGNED_NORMALIZED', 'SRC_ALPHA', 'SRC_ALPHA_SATURATE', 'SRC_COLOR', 'SRGB', 'SRGB8', 'SRGB8_ALPHA8', 'STATIC_COPY', 'STATIC_DRAW', 'STATIC_READ', 'STENCIL', 'STENCIL_ATTACHMENT', 'STENCIL_BACK_FAIL', 'STENCIL_BACK_FUNC', 'STENCIL_BACK_PASS_DEPTH_FAIL', 'STENCIL_BACK_PASS_DEPTH_PASS', 'STENCIL_BACK_REF', 'STENCIL_BACK_VALUE_MASK', 'STENCIL_BACK_WRITEMASK', 'STENCIL_BITS', 'STENCIL_BUFFER_BIT', 'STENCIL_CLEAR_VALUE', 'STENCIL_FAIL', 'STENCIL_FUNC', 'STENCIL_INDEX8', 'STENCIL_PASS_DEPTH_FAIL', 'STENCIL_PASS_DEPTH_PASS', 'STENCIL_REF', 'STENCIL_TEST', 'STENCIL_VALUE_MASK', 'STENCIL_WRITEMASK', 'STREAM_COPY', 'STREAM_DRAW', 'STREAM_READ', 'SUBPIXEL_BITS', 'SYNC_CONDITION', 'SYNC_FENCE', 'SYNC_FLAGS', 'SYNC_FLUSH_COMMANDS_BIT', 'SYNC_GPU_COMMANDS_COMPLETE', 'SYNC_STATUS', 'TEXTURE', 'TEXTURE0', 'TEXTURE1', 'TEXTURE10', 'TEXTURE11', 'TEXTURE12', 'TEXTURE13', 'TEXTURE14', 'TEXTURE15', 'TEXTURE16', 'TEXTURE17', 'TEXTURE18', 'TEXTURE19', 'TEXTURE2', 'TEXTURE20', 'TEXTURE21', 'TEXTURE22', 'TEXTURE23', 'TEXTURE24', 'TEXTURE25', 'TEXTURE26', 'TEXTURE27', 'TEXTURE28', 'TEXTURE29', 'TEXTURE3', 'TEXTURE30', 'TEXTURE31', 'TEXTURE4', 'TEXTURE5', 'TEXTURE6', 'TEXTURE7', 'TEXTURE8', 'TEXTURE9', 'TEXTURE_2D', 'TEXTURE_2D_ARRAY', 'TEXTURE_3D', 'TEXTURE_BASE_LEVEL', 'TEXTURE_BINDING_2D', 'TEXTURE_BINDING_2D_ARRAY', 'TEXTURE_BINDING_3D', 'TEXTURE_BINDING_CUBE_MAP', 'TEXTURE_COMPARE_FUNC', 'TEXTURE_COMPARE_MODE', 'TEXTURE_CUBE_MAP', 'TEXTURE_CUBE_MAP_NEGATIVE_X', 'TEXTURE_CUBE_MAP_NEGATIVE_Y', 'TEXTURE_CUBE_MAP_NEGATIVE_Z', 'TEXTURE_CUBE_MAP_POSITIVE_X', 'TEXTURE_CUBE_MAP_POSITIVE_Y', 'TEXTURE_CUBE_MAP_POSITIVE_Z', 'TEXTURE_IMMUTABLE_FORMAT', 'TEXTURE_IMMUTABLE_LEVELS', 'TEXTURE_MAG_FILTER', 'TEXTURE_MAX_LEVEL', 'TEXTURE_MAX_LOD', 'TEXTURE_MIN_FILTER', 'TEXTURE_MIN_LOD', 'TEXTURE_WRAP_R', 'TEXTURE_WRAP_S', 'TEXTURE_WRAP_T', 'TIMEOUT_EXPIRED', 'TIMEOUT_IGNORED', 'TRANSFORM_FEEDBACK', 'TRANSFORM_FEEDBACK_ACTIVE', 'TRANSFORM_FEEDBACK_BINDING', 'TRANSFORM_FEEDBACK_BUFFER', 'TRANSFORM_FEEDBACK_BUFFER_BINDING', 'TRANSFORM_FEEDBACK_BUFFER_MODE', 'TRANSFORM_FEEDBACK_BUFFER_SIZE', 'TRANSFORM_FEEDBACK_BUFFER_START', 'TRANSFORM_FEEDBACK_PAUSED', 'TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN', 'TRANSFORM_FEEDBACK_VARYINGS', 'TRIANGLES', 'TRIANGLE_FAN', 'TRIANGLE_STRIP', 'UNIFORM_ARRAY_STRIDE', 'UNIFORM_BLOCK_ACTIVE_UNIFORMS', 'UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES', 'UNIFORM_BLOCK_BINDING', 'UNIFORM_BLOCK_DATA_SIZE', 'UNIFORM_BLOCK_INDEX', 'UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER', 'UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER', 'UNIFORM_BUFFER', 'UNIFORM_BUFFER_BINDING', 'UNIFORM_BUFFER_OFFSET_ALIGNMENT', 'UNIFORM_BUFFER_SIZE', 'UNIFORM_BUFFER_START', 'UNIFORM_IS_ROW_MAJOR', 'UNIFORM_MATRIX_STRIDE', 'UNIFORM_OFFSET', 'UNIFORM_SIZE', 'UNIFORM_TYPE', 'UNPACK_ALIGNMENT', 'UNPACK_COLORSPACE_CONVERSION_WEBGL', 'UNPACK_FLIP_Y_WEBGL', 'UNPACK_IMAGE_HEIGHT', 'UNPACK_PREMULTIPLY_ALPHA_WEBGL', 'UNPACK_ROW_LENGTH', 'UNPACK_SKIP_IMAGES', 'UNPACK_SKIP_PIXELS', 'UNPACK_SKIP_ROWS', 'UNSIGNALED', 'UNSIGNED_BYTE', 'UNSIGNED_INT', 'UNSIGNED_INT_10F_11F_11F_REV', 'UNSIGNED_INT_24_8', 'UNSIGNED_INT_2_10_10_10_REV', 'UNSIGNED_INT_5_9_9_9_REV', 'UNSIGNED_INT_SAMPLER_2D', 'UNSIGNED_INT_SAMPLER_2D_ARRAY', 'UNSIGNED_INT_SAMPLER_3D', 'UNSIGNED_INT_SAMPLER_CUBE', 'UNSIGNED_INT_VEC2', 'UNSIGNED_INT_VEC3', 'UNSIGNED_INT_VEC4', 'UNSIGNED_NORMALIZED', 'UNSIGNED_SHORT', 'UNSIGNED_SHORT_4_4_4_4', 'UNSIGNED_SHORT_5_5_5_1', 'UNSIGNED_SHORT_5_6_5', 'VALIDATE_STATUS', 'VENDOR', 'VERSION', 'VERTEX_ARRAY_BINDING', 'VERTEX_ATTRIB_ARRAY_BUFFER_BINDING', 'VERTEX_ATTRIB_ARRAY_DIVISOR', 'VERTEX_ATTRIB_ARRAY_ENABLED', 'VERTEX_ATTRIB_ARRAY_INTEGER', 'VERTEX_ATTRIB_ARRAY_NORMALIZED', 'VERTEX_ATTRIB_ARRAY_POINTER', 'VERTEX_ATTRIB_ARRAY_SIZE', 'VERTEX_ATTRIB_ARRAY_STRIDE', 'VERTEX_ATTRIB_ARRAY_TYPE', 'VERTEX_SHADER', 'VIEWPORT', 'WAIT_FAILED', 'ZERO']);
  dart.defineLazy(web_gl.WebGL, {
    /*web_gl.WebGL.ACTIVE_ATTRIBUTES*/get ACTIVE_ATTRIBUTES() {
      return 35721;
    },
    /*web_gl.WebGL.ACTIVE_TEXTURE*/get ACTIVE_TEXTURE() {
      return 34016;
    },
    /*web_gl.WebGL.ACTIVE_UNIFORMS*/get ACTIVE_UNIFORMS() {
      return 35718;
    },
    /*web_gl.WebGL.ACTIVE_UNIFORM_BLOCKS*/get ACTIVE_UNIFORM_BLOCKS() {
      return 35382;
    },
    /*web_gl.WebGL.ALIASED_LINE_WIDTH_RANGE*/get ALIASED_LINE_WIDTH_RANGE() {
      return 33902;
    },
    /*web_gl.WebGL.ALIASED_POINT_SIZE_RANGE*/get ALIASED_POINT_SIZE_RANGE() {
      return 33901;
    },
    /*web_gl.WebGL.ALPHA*/get ALPHA() {
      return 6406;
    },
    /*web_gl.WebGL.ALPHA_BITS*/get ALPHA_BITS() {
      return 3413;
    },
    /*web_gl.WebGL.ALREADY_SIGNALED*/get ALREADY_SIGNALED() {
      return 37146;
    },
    /*web_gl.WebGL.ALWAYS*/get ALWAYS() {
      return 519;
    },
    /*web_gl.WebGL.ANY_SAMPLES_PASSED*/get ANY_SAMPLES_PASSED() {
      return 35887;
    },
    /*web_gl.WebGL.ANY_SAMPLES_PASSED_CONSERVATIVE*/get ANY_SAMPLES_PASSED_CONSERVATIVE() {
      return 36202;
    },
    /*web_gl.WebGL.ARRAY_BUFFER*/get ARRAY_BUFFER() {
      return 34962;
    },
    /*web_gl.WebGL.ARRAY_BUFFER_BINDING*/get ARRAY_BUFFER_BINDING() {
      return 34964;
    },
    /*web_gl.WebGL.ATTACHED_SHADERS*/get ATTACHED_SHADERS() {
      return 35717;
    },
    /*web_gl.WebGL.BACK*/get BACK() {
      return 1029;
    },
    /*web_gl.WebGL.BLEND*/get BLEND() {
      return 3042;
    },
    /*web_gl.WebGL.BLEND_COLOR*/get BLEND_COLOR() {
      return 32773;
    },
    /*web_gl.WebGL.BLEND_DST_ALPHA*/get BLEND_DST_ALPHA() {
      return 32970;
    },
    /*web_gl.WebGL.BLEND_DST_RGB*/get BLEND_DST_RGB() {
      return 32968;
    },
    /*web_gl.WebGL.BLEND_EQUATION*/get BLEND_EQUATION() {
      return 32777;
    },
    /*web_gl.WebGL.BLEND_EQUATION_ALPHA*/get BLEND_EQUATION_ALPHA() {
      return 34877;
    },
    /*web_gl.WebGL.BLEND_EQUATION_RGB*/get BLEND_EQUATION_RGB() {
      return 32777;
    },
    /*web_gl.WebGL.BLEND_SRC_ALPHA*/get BLEND_SRC_ALPHA() {
      return 32971;
    },
    /*web_gl.WebGL.BLEND_SRC_RGB*/get BLEND_SRC_RGB() {
      return 32969;
    },
    /*web_gl.WebGL.BLUE_BITS*/get BLUE_BITS() {
      return 3412;
    },
    /*web_gl.WebGL.BOOL*/get BOOL() {
      return 35670;
    },
    /*web_gl.WebGL.BOOL_VEC2*/get BOOL_VEC2() {
      return 35671;
    },
    /*web_gl.WebGL.BOOL_VEC3*/get BOOL_VEC3() {
      return 35672;
    },
    /*web_gl.WebGL.BOOL_VEC4*/get BOOL_VEC4() {
      return 35673;
    },
    /*web_gl.WebGL.BROWSER_DEFAULT_WEBGL*/get BROWSER_DEFAULT_WEBGL() {
      return 37444;
    },
    /*web_gl.WebGL.BUFFER_SIZE*/get BUFFER_SIZE() {
      return 34660;
    },
    /*web_gl.WebGL.BUFFER_USAGE*/get BUFFER_USAGE() {
      return 34661;
    },
    /*web_gl.WebGL.BYTE*/get BYTE() {
      return 5120;
    },
    /*web_gl.WebGL.CCW*/get CCW() {
      return 2305;
    },
    /*web_gl.WebGL.CLAMP_TO_EDGE*/get CLAMP_TO_EDGE() {
      return 33071;
    },
    /*web_gl.WebGL.COLOR*/get COLOR() {
      return 6144;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT0*/get COLOR_ATTACHMENT0() {
      return 36064;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT0_WEBGL*/get COLOR_ATTACHMENT0_WEBGL() {
      return 36064;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT1*/get COLOR_ATTACHMENT1() {
      return 36065;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT10*/get COLOR_ATTACHMENT10() {
      return 36074;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT10_WEBGL*/get COLOR_ATTACHMENT10_WEBGL() {
      return 36074;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT11*/get COLOR_ATTACHMENT11() {
      return 36075;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT11_WEBGL*/get COLOR_ATTACHMENT11_WEBGL() {
      return 36075;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT12*/get COLOR_ATTACHMENT12() {
      return 36076;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT12_WEBGL*/get COLOR_ATTACHMENT12_WEBGL() {
      return 36076;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT13*/get COLOR_ATTACHMENT13() {
      return 36077;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT13_WEBGL*/get COLOR_ATTACHMENT13_WEBGL() {
      return 36077;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT14*/get COLOR_ATTACHMENT14() {
      return 36078;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT14_WEBGL*/get COLOR_ATTACHMENT14_WEBGL() {
      return 36078;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT15*/get COLOR_ATTACHMENT15() {
      return 36079;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT15_WEBGL*/get COLOR_ATTACHMENT15_WEBGL() {
      return 36079;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT1_WEBGL*/get COLOR_ATTACHMENT1_WEBGL() {
      return 36065;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT2*/get COLOR_ATTACHMENT2() {
      return 36066;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT2_WEBGL*/get COLOR_ATTACHMENT2_WEBGL() {
      return 36066;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT3*/get COLOR_ATTACHMENT3() {
      return 36067;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT3_WEBGL*/get COLOR_ATTACHMENT3_WEBGL() {
      return 36067;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT4*/get COLOR_ATTACHMENT4() {
      return 36068;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT4_WEBGL*/get COLOR_ATTACHMENT4_WEBGL() {
      return 36068;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT5*/get COLOR_ATTACHMENT5() {
      return 36069;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT5_WEBGL*/get COLOR_ATTACHMENT5_WEBGL() {
      return 36069;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT6*/get COLOR_ATTACHMENT6() {
      return 36070;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT6_WEBGL*/get COLOR_ATTACHMENT6_WEBGL() {
      return 36070;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT7*/get COLOR_ATTACHMENT7() {
      return 36071;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT7_WEBGL*/get COLOR_ATTACHMENT7_WEBGL() {
      return 36071;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT8*/get COLOR_ATTACHMENT8() {
      return 36072;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT8_WEBGL*/get COLOR_ATTACHMENT8_WEBGL() {
      return 36072;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT9*/get COLOR_ATTACHMENT9() {
      return 36073;
    },
    /*web_gl.WebGL.COLOR_ATTACHMENT9_WEBGL*/get COLOR_ATTACHMENT9_WEBGL() {
      return 36073;
    },
    /*web_gl.WebGL.COLOR_BUFFER_BIT*/get COLOR_BUFFER_BIT() {
      return 16384;
    },
    /*web_gl.WebGL.COLOR_CLEAR_VALUE*/get COLOR_CLEAR_VALUE() {
      return 3106;
    },
    /*web_gl.WebGL.COLOR_WRITEMASK*/get COLOR_WRITEMASK() {
      return 3107;
    },
    /*web_gl.WebGL.COMPARE_REF_TO_TEXTURE*/get COMPARE_REF_TO_TEXTURE() {
      return 34894;
    },
    /*web_gl.WebGL.COMPILE_STATUS*/get COMPILE_STATUS() {
      return 35713;
    },
    /*web_gl.WebGL.COMPRESSED_TEXTURE_FORMATS*/get COMPRESSED_TEXTURE_FORMATS() {
      return 34467;
    },
    /*web_gl.WebGL.CONDITION_SATISFIED*/get CONDITION_SATISFIED() {
      return 37148;
    },
    /*web_gl.WebGL.CONSTANT_ALPHA*/get CONSTANT_ALPHA() {
      return 32771;
    },
    /*web_gl.WebGL.CONSTANT_COLOR*/get CONSTANT_COLOR() {
      return 32769;
    },
    /*web_gl.WebGL.CONTEXT_LOST_WEBGL*/get CONTEXT_LOST_WEBGL() {
      return 37442;
    },
    /*web_gl.WebGL.COPY_READ_BUFFER*/get COPY_READ_BUFFER() {
      return 36662;
    },
    /*web_gl.WebGL.COPY_READ_BUFFER_BINDING*/get COPY_READ_BUFFER_BINDING() {
      return 36662;
    },
    /*web_gl.WebGL.COPY_WRITE_BUFFER*/get COPY_WRITE_BUFFER() {
      return 36663;
    },
    /*web_gl.WebGL.COPY_WRITE_BUFFER_BINDING*/get COPY_WRITE_BUFFER_BINDING() {
      return 36663;
    },
    /*web_gl.WebGL.CULL_FACE*/get CULL_FACE() {
      return 2884;
    },
    /*web_gl.WebGL.CULL_FACE_MODE*/get CULL_FACE_MODE() {
      return 2885;
    },
    /*web_gl.WebGL.CURRENT_PROGRAM*/get CURRENT_PROGRAM() {
      return 35725;
    },
    /*web_gl.WebGL.CURRENT_QUERY*/get CURRENT_QUERY() {
      return 34917;
    },
    /*web_gl.WebGL.CURRENT_VERTEX_ATTRIB*/get CURRENT_VERTEX_ATTRIB() {
      return 34342;
    },
    /*web_gl.WebGL.CW*/get CW() {
      return 2304;
    },
    /*web_gl.WebGL.DECR*/get DECR() {
      return 7683;
    },
    /*web_gl.WebGL.DECR_WRAP*/get DECR_WRAP() {
      return 34056;
    },
    /*web_gl.WebGL.DELETE_STATUS*/get DELETE_STATUS() {
      return 35712;
    },
    /*web_gl.WebGL.DEPTH*/get DEPTH() {
      return 6145;
    },
    /*web_gl.WebGL.DEPTH24_STENCIL8*/get DEPTH24_STENCIL8() {
      return 35056;
    },
    /*web_gl.WebGL.DEPTH32F_STENCIL8*/get DEPTH32F_STENCIL8() {
      return 36013;
    },
    /*web_gl.WebGL.DEPTH_ATTACHMENT*/get DEPTH_ATTACHMENT() {
      return 36096;
    },
    /*web_gl.WebGL.DEPTH_BITS*/get DEPTH_BITS() {
      return 3414;
    },
    /*web_gl.WebGL.DEPTH_BUFFER_BIT*/get DEPTH_BUFFER_BIT() {
      return 256;
    },
    /*web_gl.WebGL.DEPTH_CLEAR_VALUE*/get DEPTH_CLEAR_VALUE() {
      return 2931;
    },
    /*web_gl.WebGL.DEPTH_COMPONENT*/get DEPTH_COMPONENT() {
      return 6402;
    },
    /*web_gl.WebGL.DEPTH_COMPONENT16*/get DEPTH_COMPONENT16() {
      return 33189;
    },
    /*web_gl.WebGL.DEPTH_COMPONENT24*/get DEPTH_COMPONENT24() {
      return 33190;
    },
    /*web_gl.WebGL.DEPTH_COMPONENT32F*/get DEPTH_COMPONENT32F() {
      return 36012;
    },
    /*web_gl.WebGL.DEPTH_FUNC*/get DEPTH_FUNC() {
      return 2932;
    },
    /*web_gl.WebGL.DEPTH_RANGE*/get DEPTH_RANGE() {
      return 2928;
    },
    /*web_gl.WebGL.DEPTH_STENCIL*/get DEPTH_STENCIL() {
      return 34041;
    },
    /*web_gl.WebGL.DEPTH_STENCIL_ATTACHMENT*/get DEPTH_STENCIL_ATTACHMENT() {
      return 33306;
    },
    /*web_gl.WebGL.DEPTH_TEST*/get DEPTH_TEST() {
      return 2929;
    },
    /*web_gl.WebGL.DEPTH_WRITEMASK*/get DEPTH_WRITEMASK() {
      return 2930;
    },
    /*web_gl.WebGL.DITHER*/get DITHER() {
      return 3024;
    },
    /*web_gl.WebGL.DONT_CARE*/get DONT_CARE() {
      return 4352;
    },
    /*web_gl.WebGL.DRAW_BUFFER0*/get DRAW_BUFFER0() {
      return 34853;
    },
    /*web_gl.WebGL.DRAW_BUFFER0_WEBGL*/get DRAW_BUFFER0_WEBGL() {
      return 34853;
    },
    /*web_gl.WebGL.DRAW_BUFFER1*/get DRAW_BUFFER1() {
      return 34854;
    },
    /*web_gl.WebGL.DRAW_BUFFER10*/get DRAW_BUFFER10() {
      return 34863;
    },
    /*web_gl.WebGL.DRAW_BUFFER10_WEBGL*/get DRAW_BUFFER10_WEBGL() {
      return 34863;
    },
    /*web_gl.WebGL.DRAW_BUFFER11*/get DRAW_BUFFER11() {
      return 34864;
    },
    /*web_gl.WebGL.DRAW_BUFFER11_WEBGL*/get DRAW_BUFFER11_WEBGL() {
      return 34864;
    },
    /*web_gl.WebGL.DRAW_BUFFER12*/get DRAW_BUFFER12() {
      return 34865;
    },
    /*web_gl.WebGL.DRAW_BUFFER12_WEBGL*/get DRAW_BUFFER12_WEBGL() {
      return 34865;
    },
    /*web_gl.WebGL.DRAW_BUFFER13*/get DRAW_BUFFER13() {
      return 34866;
    },
    /*web_gl.WebGL.DRAW_BUFFER13_WEBGL*/get DRAW_BUFFER13_WEBGL() {
      return 34866;
    },
    /*web_gl.WebGL.DRAW_BUFFER14*/get DRAW_BUFFER14() {
      return 34867;
    },
    /*web_gl.WebGL.DRAW_BUFFER14_WEBGL*/get DRAW_BUFFER14_WEBGL() {
      return 34867;
    },
    /*web_gl.WebGL.DRAW_BUFFER15*/get DRAW_BUFFER15() {
      return 34868;
    },
    /*web_gl.WebGL.DRAW_BUFFER15_WEBGL*/get DRAW_BUFFER15_WEBGL() {
      return 34868;
    },
    /*web_gl.WebGL.DRAW_BUFFER1_WEBGL*/get DRAW_BUFFER1_WEBGL() {
      return 34854;
    },
    /*web_gl.WebGL.DRAW_BUFFER2*/get DRAW_BUFFER2() {
      return 34855;
    },
    /*web_gl.WebGL.DRAW_BUFFER2_WEBGL*/get DRAW_BUFFER2_WEBGL() {
      return 34855;
    },
    /*web_gl.WebGL.DRAW_BUFFER3*/get DRAW_BUFFER3() {
      return 34856;
    },
    /*web_gl.WebGL.DRAW_BUFFER3_WEBGL*/get DRAW_BUFFER3_WEBGL() {
      return 34856;
    },
    /*web_gl.WebGL.DRAW_BUFFER4*/get DRAW_BUFFER4() {
      return 34857;
    },
    /*web_gl.WebGL.DRAW_BUFFER4_WEBGL*/get DRAW_BUFFER4_WEBGL() {
      return 34857;
    },
    /*web_gl.WebGL.DRAW_BUFFER5*/get DRAW_BUFFER5() {
      return 34858;
    },
    /*web_gl.WebGL.DRAW_BUFFER5_WEBGL*/get DRAW_BUFFER5_WEBGL() {
      return 34858;
    },
    /*web_gl.WebGL.DRAW_BUFFER6*/get DRAW_BUFFER6() {
      return 34859;
    },
    /*web_gl.WebGL.DRAW_BUFFER6_WEBGL*/get DRAW_BUFFER6_WEBGL() {
      return 34859;
    },
    /*web_gl.WebGL.DRAW_BUFFER7*/get DRAW_BUFFER7() {
      return 34860;
    },
    /*web_gl.WebGL.DRAW_BUFFER7_WEBGL*/get DRAW_BUFFER7_WEBGL() {
      return 34860;
    },
    /*web_gl.WebGL.DRAW_BUFFER8*/get DRAW_BUFFER8() {
      return 34861;
    },
    /*web_gl.WebGL.DRAW_BUFFER8_WEBGL*/get DRAW_BUFFER8_WEBGL() {
      return 34861;
    },
    /*web_gl.WebGL.DRAW_BUFFER9*/get DRAW_BUFFER9() {
      return 34862;
    },
    /*web_gl.WebGL.DRAW_BUFFER9_WEBGL*/get DRAW_BUFFER9_WEBGL() {
      return 34862;
    },
    /*web_gl.WebGL.DRAW_FRAMEBUFFER*/get DRAW_FRAMEBUFFER() {
      return 36009;
    },
    /*web_gl.WebGL.DRAW_FRAMEBUFFER_BINDING*/get DRAW_FRAMEBUFFER_BINDING() {
      return 36006;
    },
    /*web_gl.WebGL.DST_ALPHA*/get DST_ALPHA() {
      return 772;
    },
    /*web_gl.WebGL.DST_COLOR*/get DST_COLOR() {
      return 774;
    },
    /*web_gl.WebGL.DYNAMIC_COPY*/get DYNAMIC_COPY() {
      return 35050;
    },
    /*web_gl.WebGL.DYNAMIC_DRAW*/get DYNAMIC_DRAW() {
      return 35048;
    },
    /*web_gl.WebGL.DYNAMIC_READ*/get DYNAMIC_READ() {
      return 35049;
    },
    /*web_gl.WebGL.ELEMENT_ARRAY_BUFFER*/get ELEMENT_ARRAY_BUFFER() {
      return 34963;
    },
    /*web_gl.WebGL.ELEMENT_ARRAY_BUFFER_BINDING*/get ELEMENT_ARRAY_BUFFER_BINDING() {
      return 34965;
    },
    /*web_gl.WebGL.EQUAL*/get EQUAL() {
      return 514;
    },
    /*web_gl.WebGL.FASTEST*/get FASTEST() {
      return 4353;
    },
    /*web_gl.WebGL.FLOAT*/get FLOAT() {
      return 5126;
    },
    /*web_gl.WebGL.FLOAT_32_UNSIGNED_INT_24_8_REV*/get FLOAT_32_UNSIGNED_INT_24_8_REV() {
      return 36269;
    },
    /*web_gl.WebGL.FLOAT_MAT2*/get FLOAT_MAT2() {
      return 35674;
    },
    /*web_gl.WebGL.FLOAT_MAT2x3*/get FLOAT_MAT2x3() {
      return 35685;
    },
    /*web_gl.WebGL.FLOAT_MAT2x4*/get FLOAT_MAT2x4() {
      return 35686;
    },
    /*web_gl.WebGL.FLOAT_MAT3*/get FLOAT_MAT3() {
      return 35675;
    },
    /*web_gl.WebGL.FLOAT_MAT3x2*/get FLOAT_MAT3x2() {
      return 35687;
    },
    /*web_gl.WebGL.FLOAT_MAT3x4*/get FLOAT_MAT3x4() {
      return 35688;
    },
    /*web_gl.WebGL.FLOAT_MAT4*/get FLOAT_MAT4() {
      return 35676;
    },
    /*web_gl.WebGL.FLOAT_MAT4x2*/get FLOAT_MAT4x2() {
      return 35689;
    },
    /*web_gl.WebGL.FLOAT_MAT4x3*/get FLOAT_MAT4x3() {
      return 35690;
    },
    /*web_gl.WebGL.FLOAT_VEC2*/get FLOAT_VEC2() {
      return 35664;
    },
    /*web_gl.WebGL.FLOAT_VEC3*/get FLOAT_VEC3() {
      return 35665;
    },
    /*web_gl.WebGL.FLOAT_VEC4*/get FLOAT_VEC4() {
      return 35666;
    },
    /*web_gl.WebGL.FRAGMENT_SHADER*/get FRAGMENT_SHADER() {
      return 35632;
    },
    /*web_gl.WebGL.FRAGMENT_SHADER_DERIVATIVE_HINT*/get FRAGMENT_SHADER_DERIVATIVE_HINT() {
      return 35723;
    },
    /*web_gl.WebGL.FRAMEBUFFER*/get FRAMEBUFFER() {
      return 36160;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE*/get FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE() {
      return 33301;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_BLUE_SIZE*/get FRAMEBUFFER_ATTACHMENT_BLUE_SIZE() {
      return 33300;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING*/get FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING() {
      return 33296;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE*/get FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE() {
      return 33297;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE*/get FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE() {
      return 33302;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_GREEN_SIZE*/get FRAMEBUFFER_ATTACHMENT_GREEN_SIZE() {
      return 33299;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME*/get FRAMEBUFFER_ATTACHMENT_OBJECT_NAME() {
      return 36049;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE*/get FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE() {
      return 36048;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_RED_SIZE*/get FRAMEBUFFER_ATTACHMENT_RED_SIZE() {
      return 33298;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE*/get FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE() {
      return 33303;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE*/get FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE() {
      return 36051;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER*/get FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER() {
      return 36052;
    },
    /*web_gl.WebGL.FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL*/get FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL() {
      return 36050;
    },
    /*web_gl.WebGL.FRAMEBUFFER_BINDING*/get FRAMEBUFFER_BINDING() {
      return 36006;
    },
    /*web_gl.WebGL.FRAMEBUFFER_COMPLETE*/get FRAMEBUFFER_COMPLETE() {
      return 36053;
    },
    /*web_gl.WebGL.FRAMEBUFFER_DEFAULT*/get FRAMEBUFFER_DEFAULT() {
      return 33304;
    },
    /*web_gl.WebGL.FRAMEBUFFER_INCOMPLETE_ATTACHMENT*/get FRAMEBUFFER_INCOMPLETE_ATTACHMENT() {
      return 36054;
    },
    /*web_gl.WebGL.FRAMEBUFFER_INCOMPLETE_DIMENSIONS*/get FRAMEBUFFER_INCOMPLETE_DIMENSIONS() {
      return 36057;
    },
    /*web_gl.WebGL.FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT*/get FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT() {
      return 36055;
    },
    /*web_gl.WebGL.FRAMEBUFFER_INCOMPLETE_MULTISAMPLE*/get FRAMEBUFFER_INCOMPLETE_MULTISAMPLE() {
      return 36182;
    },
    /*web_gl.WebGL.FRAMEBUFFER_UNSUPPORTED*/get FRAMEBUFFER_UNSUPPORTED() {
      return 36061;
    },
    /*web_gl.WebGL.FRONT*/get FRONT() {
      return 1028;
    },
    /*web_gl.WebGL.FRONT_AND_BACK*/get FRONT_AND_BACK() {
      return 1032;
    },
    /*web_gl.WebGL.FRONT_FACE*/get FRONT_FACE() {
      return 2886;
    },
    /*web_gl.WebGL.FUNC_ADD*/get FUNC_ADD() {
      return 32774;
    },
    /*web_gl.WebGL.FUNC_REVERSE_SUBTRACT*/get FUNC_REVERSE_SUBTRACT() {
      return 32779;
    },
    /*web_gl.WebGL.FUNC_SUBTRACT*/get FUNC_SUBTRACT() {
      return 32778;
    },
    /*web_gl.WebGL.GENERATE_MIPMAP_HINT*/get GENERATE_MIPMAP_HINT() {
      return 33170;
    },
    /*web_gl.WebGL.GEQUAL*/get GEQUAL() {
      return 518;
    },
    /*web_gl.WebGL.GREATER*/get GREATER() {
      return 516;
    },
    /*web_gl.WebGL.GREEN_BITS*/get GREEN_BITS() {
      return 3411;
    },
    /*web_gl.WebGL.HALF_FLOAT*/get HALF_FLOAT() {
      return 5131;
    },
    /*web_gl.WebGL.HIGH_FLOAT*/get HIGH_FLOAT() {
      return 36338;
    },
    /*web_gl.WebGL.HIGH_INT*/get HIGH_INT() {
      return 36341;
    },
    /*web_gl.WebGL.IMPLEMENTATION_COLOR_READ_FORMAT*/get IMPLEMENTATION_COLOR_READ_FORMAT() {
      return 35739;
    },
    /*web_gl.WebGL.IMPLEMENTATION_COLOR_READ_TYPE*/get IMPLEMENTATION_COLOR_READ_TYPE() {
      return 35738;
    },
    /*web_gl.WebGL.INCR*/get INCR() {
      return 7682;
    },
    /*web_gl.WebGL.INCR_WRAP*/get INCR_WRAP() {
      return 34055;
    },
    /*web_gl.WebGL.INT*/get INT() {
      return 5124;
    },
    /*web_gl.WebGL.INTERLEAVED_ATTRIBS*/get INTERLEAVED_ATTRIBS() {
      return 35980;
    },
    /*web_gl.WebGL.INT_2_10_10_10_REV*/get INT_2_10_10_10_REV() {
      return 36255;
    },
    /*web_gl.WebGL.INT_SAMPLER_2D*/get INT_SAMPLER_2D() {
      return 36298;
    },
    /*web_gl.WebGL.INT_SAMPLER_2D_ARRAY*/get INT_SAMPLER_2D_ARRAY() {
      return 36303;
    },
    /*web_gl.WebGL.INT_SAMPLER_3D*/get INT_SAMPLER_3D() {
      return 36299;
    },
    /*web_gl.WebGL.INT_SAMPLER_CUBE*/get INT_SAMPLER_CUBE() {
      return 36300;
    },
    /*web_gl.WebGL.INT_VEC2*/get INT_VEC2() {
      return 35667;
    },
    /*web_gl.WebGL.INT_VEC3*/get INT_VEC3() {
      return 35668;
    },
    /*web_gl.WebGL.INT_VEC4*/get INT_VEC4() {
      return 35669;
    },
    /*web_gl.WebGL.INVALID_ENUM*/get INVALID_ENUM() {
      return 1280;
    },
    /*web_gl.WebGL.INVALID_FRAMEBUFFER_OPERATION*/get INVALID_FRAMEBUFFER_OPERATION() {
      return 1286;
    },
    /*web_gl.WebGL.INVALID_INDEX*/get INVALID_INDEX() {
      return 4294967295.0;
    },
    /*web_gl.WebGL.INVALID_OPERATION*/get INVALID_OPERATION() {
      return 1282;
    },
    /*web_gl.WebGL.INVALID_VALUE*/get INVALID_VALUE() {
      return 1281;
    },
    /*web_gl.WebGL.INVERT*/get INVERT() {
      return 5386;
    },
    /*web_gl.WebGL.KEEP*/get KEEP() {
      return 7680;
    },
    /*web_gl.WebGL.LEQUAL*/get LEQUAL() {
      return 515;
    },
    /*web_gl.WebGL.LESS*/get LESS() {
      return 513;
    },
    /*web_gl.WebGL.LINEAR*/get LINEAR() {
      return 9729;
    },
    /*web_gl.WebGL.LINEAR_MIPMAP_LINEAR*/get LINEAR_MIPMAP_LINEAR() {
      return 9987;
    },
    /*web_gl.WebGL.LINEAR_MIPMAP_NEAREST*/get LINEAR_MIPMAP_NEAREST() {
      return 9985;
    },
    /*web_gl.WebGL.LINES*/get LINES() {
      return 1;
    },
    /*web_gl.WebGL.LINE_LOOP*/get LINE_LOOP() {
      return 2;
    },
    /*web_gl.WebGL.LINE_STRIP*/get LINE_STRIP() {
      return 3;
    },
    /*web_gl.WebGL.LINE_WIDTH*/get LINE_WIDTH() {
      return 2849;
    },
    /*web_gl.WebGL.LINK_STATUS*/get LINK_STATUS() {
      return 35714;
    },
    /*web_gl.WebGL.LOW_FLOAT*/get LOW_FLOAT() {
      return 36336;
    },
    /*web_gl.WebGL.LOW_INT*/get LOW_INT() {
      return 36339;
    },
    /*web_gl.WebGL.LUMINANCE*/get LUMINANCE() {
      return 6409;
    },
    /*web_gl.WebGL.LUMINANCE_ALPHA*/get LUMINANCE_ALPHA() {
      return 6410;
    },
    /*web_gl.WebGL.MAX*/get MAX() {
      return 32776;
    },
    /*web_gl.WebGL.MAX_3D_TEXTURE_SIZE*/get MAX_3D_TEXTURE_SIZE() {
      return 32883;
    },
    /*web_gl.WebGL.MAX_ARRAY_TEXTURE_LAYERS*/get MAX_ARRAY_TEXTURE_LAYERS() {
      return 35071;
    },
    /*web_gl.WebGL.MAX_CLIENT_WAIT_TIMEOUT_WEBGL*/get MAX_CLIENT_WAIT_TIMEOUT_WEBGL() {
      return 37447;
    },
    /*web_gl.WebGL.MAX_COLOR_ATTACHMENTS*/get MAX_COLOR_ATTACHMENTS() {
      return 36063;
    },
    /*web_gl.WebGL.MAX_COLOR_ATTACHMENTS_WEBGL*/get MAX_COLOR_ATTACHMENTS_WEBGL() {
      return 36063;
    },
    /*web_gl.WebGL.MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS*/get MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS() {
      return 35379;
    },
    /*web_gl.WebGL.MAX_COMBINED_TEXTURE_IMAGE_UNITS*/get MAX_COMBINED_TEXTURE_IMAGE_UNITS() {
      return 35661;
    },
    /*web_gl.WebGL.MAX_COMBINED_UNIFORM_BLOCKS*/get MAX_COMBINED_UNIFORM_BLOCKS() {
      return 35374;
    },
    /*web_gl.WebGL.MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS*/get MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS() {
      return 35377;
    },
    /*web_gl.WebGL.MAX_CUBE_MAP_TEXTURE_SIZE*/get MAX_CUBE_MAP_TEXTURE_SIZE() {
      return 34076;
    },
    /*web_gl.WebGL.MAX_DRAW_BUFFERS*/get MAX_DRAW_BUFFERS() {
      return 34852;
    },
    /*web_gl.WebGL.MAX_DRAW_BUFFERS_WEBGL*/get MAX_DRAW_BUFFERS_WEBGL() {
      return 34852;
    },
    /*web_gl.WebGL.MAX_ELEMENTS_INDICES*/get MAX_ELEMENTS_INDICES() {
      return 33001;
    },
    /*web_gl.WebGL.MAX_ELEMENTS_VERTICES*/get MAX_ELEMENTS_VERTICES() {
      return 33000;
    },
    /*web_gl.WebGL.MAX_ELEMENT_INDEX*/get MAX_ELEMENT_INDEX() {
      return 36203;
    },
    /*web_gl.WebGL.MAX_FRAGMENT_INPUT_COMPONENTS*/get MAX_FRAGMENT_INPUT_COMPONENTS() {
      return 37157;
    },
    /*web_gl.WebGL.MAX_FRAGMENT_UNIFORM_BLOCKS*/get MAX_FRAGMENT_UNIFORM_BLOCKS() {
      return 35373;
    },
    /*web_gl.WebGL.MAX_FRAGMENT_UNIFORM_COMPONENTS*/get MAX_FRAGMENT_UNIFORM_COMPONENTS() {
      return 35657;
    },
    /*web_gl.WebGL.MAX_FRAGMENT_UNIFORM_VECTORS*/get MAX_FRAGMENT_UNIFORM_VECTORS() {
      return 36349;
    },
    /*web_gl.WebGL.MAX_PROGRAM_TEXEL_OFFSET*/get MAX_PROGRAM_TEXEL_OFFSET() {
      return 35077;
    },
    /*web_gl.WebGL.MAX_RENDERBUFFER_SIZE*/get MAX_RENDERBUFFER_SIZE() {
      return 34024;
    },
    /*web_gl.WebGL.MAX_SAMPLES*/get MAX_SAMPLES() {
      return 36183;
    },
    /*web_gl.WebGL.MAX_SERVER_WAIT_TIMEOUT*/get MAX_SERVER_WAIT_TIMEOUT() {
      return 37137;
    },
    /*web_gl.WebGL.MAX_TEXTURE_IMAGE_UNITS*/get MAX_TEXTURE_IMAGE_UNITS() {
      return 34930;
    },
    /*web_gl.WebGL.MAX_TEXTURE_LOD_BIAS*/get MAX_TEXTURE_LOD_BIAS() {
      return 34045;
    },
    /*web_gl.WebGL.MAX_TEXTURE_SIZE*/get MAX_TEXTURE_SIZE() {
      return 3379;
    },
    /*web_gl.WebGL.MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS*/get MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS() {
      return 35978;
    },
    /*web_gl.WebGL.MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS*/get MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS() {
      return 35979;
    },
    /*web_gl.WebGL.MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS*/get MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS() {
      return 35968;
    },
    /*web_gl.WebGL.MAX_UNIFORM_BLOCK_SIZE*/get MAX_UNIFORM_BLOCK_SIZE() {
      return 35376;
    },
    /*web_gl.WebGL.MAX_UNIFORM_BUFFER_BINDINGS*/get MAX_UNIFORM_BUFFER_BINDINGS() {
      return 35375;
    },
    /*web_gl.WebGL.MAX_VARYING_COMPONENTS*/get MAX_VARYING_COMPONENTS() {
      return 35659;
    },
    /*web_gl.WebGL.MAX_VARYING_VECTORS*/get MAX_VARYING_VECTORS() {
      return 36348;
    },
    /*web_gl.WebGL.MAX_VERTEX_ATTRIBS*/get MAX_VERTEX_ATTRIBS() {
      return 34921;
    },
    /*web_gl.WebGL.MAX_VERTEX_OUTPUT_COMPONENTS*/get MAX_VERTEX_OUTPUT_COMPONENTS() {
      return 37154;
    },
    /*web_gl.WebGL.MAX_VERTEX_TEXTURE_IMAGE_UNITS*/get MAX_VERTEX_TEXTURE_IMAGE_UNITS() {
      return 35660;
    },
    /*web_gl.WebGL.MAX_VERTEX_UNIFORM_BLOCKS*/get MAX_VERTEX_UNIFORM_BLOCKS() {
      return 35371;
    },
    /*web_gl.WebGL.MAX_VERTEX_UNIFORM_COMPONENTS*/get MAX_VERTEX_UNIFORM_COMPONENTS() {
      return 35658;
    },
    /*web_gl.WebGL.MAX_VERTEX_UNIFORM_VECTORS*/get MAX_VERTEX_UNIFORM_VECTORS() {
      return 36347;
    },
    /*web_gl.WebGL.MAX_VIEWPORT_DIMS*/get MAX_VIEWPORT_DIMS() {
      return 3386;
    },
    /*web_gl.WebGL.MEDIUM_FLOAT*/get MEDIUM_FLOAT() {
      return 36337;
    },
    /*web_gl.WebGL.MEDIUM_INT*/get MEDIUM_INT() {
      return 36340;
    },
    /*web_gl.WebGL.MIN*/get MIN() {
      return 32775;
    },
    /*web_gl.WebGL.MIN_PROGRAM_TEXEL_OFFSET*/get MIN_PROGRAM_TEXEL_OFFSET() {
      return 35076;
    },
    /*web_gl.WebGL.MIRRORED_REPEAT*/get MIRRORED_REPEAT() {
      return 33648;
    },
    /*web_gl.WebGL.NEAREST*/get NEAREST() {
      return 9728;
    },
    /*web_gl.WebGL.NEAREST_MIPMAP_LINEAR*/get NEAREST_MIPMAP_LINEAR() {
      return 9986;
    },
    /*web_gl.WebGL.NEAREST_MIPMAP_NEAREST*/get NEAREST_MIPMAP_NEAREST() {
      return 9984;
    },
    /*web_gl.WebGL.NEVER*/get NEVER() {
      return 512;
    },
    /*web_gl.WebGL.NICEST*/get NICEST() {
      return 4354;
    },
    /*web_gl.WebGL.NONE*/get NONE() {
      return 0;
    },
    /*web_gl.WebGL.NOTEQUAL*/get NOTEQUAL() {
      return 517;
    },
    /*web_gl.WebGL.NO_ERROR*/get NO_ERROR() {
      return 0;
    },
    /*web_gl.WebGL.OBJECT_TYPE*/get OBJECT_TYPE() {
      return 37138;
    },
    /*web_gl.WebGL.ONE*/get ONE() {
      return 1;
    },
    /*web_gl.WebGL.ONE_MINUS_CONSTANT_ALPHA*/get ONE_MINUS_CONSTANT_ALPHA() {
      return 32772;
    },
    /*web_gl.WebGL.ONE_MINUS_CONSTANT_COLOR*/get ONE_MINUS_CONSTANT_COLOR() {
      return 32770;
    },
    /*web_gl.WebGL.ONE_MINUS_DST_ALPHA*/get ONE_MINUS_DST_ALPHA() {
      return 773;
    },
    /*web_gl.WebGL.ONE_MINUS_DST_COLOR*/get ONE_MINUS_DST_COLOR() {
      return 775;
    },
    /*web_gl.WebGL.ONE_MINUS_SRC_ALPHA*/get ONE_MINUS_SRC_ALPHA() {
      return 771;
    },
    /*web_gl.WebGL.ONE_MINUS_SRC_COLOR*/get ONE_MINUS_SRC_COLOR() {
      return 769;
    },
    /*web_gl.WebGL.OUT_OF_MEMORY*/get OUT_OF_MEMORY() {
      return 1285;
    },
    /*web_gl.WebGL.PACK_ALIGNMENT*/get PACK_ALIGNMENT() {
      return 3333;
    },
    /*web_gl.WebGL.PACK_ROW_LENGTH*/get PACK_ROW_LENGTH() {
      return 3330;
    },
    /*web_gl.WebGL.PACK_SKIP_PIXELS*/get PACK_SKIP_PIXELS() {
      return 3332;
    },
    /*web_gl.WebGL.PACK_SKIP_ROWS*/get PACK_SKIP_ROWS() {
      return 3331;
    },
    /*web_gl.WebGL.PIXEL_PACK_BUFFER*/get PIXEL_PACK_BUFFER() {
      return 35051;
    },
    /*web_gl.WebGL.PIXEL_PACK_BUFFER_BINDING*/get PIXEL_PACK_BUFFER_BINDING() {
      return 35053;
    },
    /*web_gl.WebGL.PIXEL_UNPACK_BUFFER*/get PIXEL_UNPACK_BUFFER() {
      return 35052;
    },
    /*web_gl.WebGL.PIXEL_UNPACK_BUFFER_BINDING*/get PIXEL_UNPACK_BUFFER_BINDING() {
      return 35055;
    },
    /*web_gl.WebGL.POINTS*/get POINTS() {
      return 0;
    },
    /*web_gl.WebGL.POLYGON_OFFSET_FACTOR*/get POLYGON_OFFSET_FACTOR() {
      return 32824;
    },
    /*web_gl.WebGL.POLYGON_OFFSET_FILL*/get POLYGON_OFFSET_FILL() {
      return 32823;
    },
    /*web_gl.WebGL.POLYGON_OFFSET_UNITS*/get POLYGON_OFFSET_UNITS() {
      return 10752;
    },
    /*web_gl.WebGL.QUERY_RESULT*/get QUERY_RESULT() {
      return 34918;
    },
    /*web_gl.WebGL.QUERY_RESULT_AVAILABLE*/get QUERY_RESULT_AVAILABLE() {
      return 34919;
    },
    /*web_gl.WebGL.R11F_G11F_B10F*/get R11F_G11F_B10F() {
      return 35898;
    },
    /*web_gl.WebGL.R16F*/get R16F() {
      return 33325;
    },
    /*web_gl.WebGL.R16I*/get R16I() {
      return 33331;
    },
    /*web_gl.WebGL.R16UI*/get R16UI() {
      return 33332;
    },
    /*web_gl.WebGL.R32F*/get R32F() {
      return 33326;
    },
    /*web_gl.WebGL.R32I*/get R32I() {
      return 33333;
    },
    /*web_gl.WebGL.R32UI*/get R32UI() {
      return 33334;
    },
    /*web_gl.WebGL.R8*/get R8() {
      return 33321;
    },
    /*web_gl.WebGL.R8I*/get R8I() {
      return 33329;
    },
    /*web_gl.WebGL.R8UI*/get R8UI() {
      return 33330;
    },
    /*web_gl.WebGL.R8_SNORM*/get R8_SNORM() {
      return 36756;
    },
    /*web_gl.WebGL.RASTERIZER_DISCARD*/get RASTERIZER_DISCARD() {
      return 35977;
    },
    /*web_gl.WebGL.READ_BUFFER*/get READ_BUFFER() {
      return 3074;
    },
    /*web_gl.WebGL.READ_FRAMEBUFFER*/get READ_FRAMEBUFFER() {
      return 36008;
    },
    /*web_gl.WebGL.READ_FRAMEBUFFER_BINDING*/get READ_FRAMEBUFFER_BINDING() {
      return 36010;
    },
    /*web_gl.WebGL.RED*/get RED() {
      return 6403;
    },
    /*web_gl.WebGL.RED_BITS*/get RED_BITS() {
      return 3410;
    },
    /*web_gl.WebGL.RED_INTEGER*/get RED_INTEGER() {
      return 36244;
    },
    /*web_gl.WebGL.RENDERBUFFER*/get RENDERBUFFER() {
      return 36161;
    },
    /*web_gl.WebGL.RENDERBUFFER_ALPHA_SIZE*/get RENDERBUFFER_ALPHA_SIZE() {
      return 36179;
    },
    /*web_gl.WebGL.RENDERBUFFER_BINDING*/get RENDERBUFFER_BINDING() {
      return 36007;
    },
    /*web_gl.WebGL.RENDERBUFFER_BLUE_SIZE*/get RENDERBUFFER_BLUE_SIZE() {
      return 36178;
    },
    /*web_gl.WebGL.RENDERBUFFER_DEPTH_SIZE*/get RENDERBUFFER_DEPTH_SIZE() {
      return 36180;
    },
    /*web_gl.WebGL.RENDERBUFFER_GREEN_SIZE*/get RENDERBUFFER_GREEN_SIZE() {
      return 36177;
    },
    /*web_gl.WebGL.RENDERBUFFER_HEIGHT*/get RENDERBUFFER_HEIGHT() {
      return 36163;
    },
    /*web_gl.WebGL.RENDERBUFFER_INTERNAL_FORMAT*/get RENDERBUFFER_INTERNAL_FORMAT() {
      return 36164;
    },
    /*web_gl.WebGL.RENDERBUFFER_RED_SIZE*/get RENDERBUFFER_RED_SIZE() {
      return 36176;
    },
    /*web_gl.WebGL.RENDERBUFFER_SAMPLES*/get RENDERBUFFER_SAMPLES() {
      return 36011;
    },
    /*web_gl.WebGL.RENDERBUFFER_STENCIL_SIZE*/get RENDERBUFFER_STENCIL_SIZE() {
      return 36181;
    },
    /*web_gl.WebGL.RENDERBUFFER_WIDTH*/get RENDERBUFFER_WIDTH() {
      return 36162;
    },
    /*web_gl.WebGL.RENDERER*/get RENDERER() {
      return 7937;
    },
    /*web_gl.WebGL.REPEAT*/get REPEAT() {
      return 10497;
    },
    /*web_gl.WebGL.REPLACE*/get REPLACE() {
      return 7681;
    },
    /*web_gl.WebGL.RG*/get RG() {
      return 33319;
    },
    /*web_gl.WebGL.RG16F*/get RG16F() {
      return 33327;
    },
    /*web_gl.WebGL.RG16I*/get RG16I() {
      return 33337;
    },
    /*web_gl.WebGL.RG16UI*/get RG16UI() {
      return 33338;
    },
    /*web_gl.WebGL.RG32F*/get RG32F() {
      return 33328;
    },
    /*web_gl.WebGL.RG32I*/get RG32I() {
      return 33339;
    },
    /*web_gl.WebGL.RG32UI*/get RG32UI() {
      return 33340;
    },
    /*web_gl.WebGL.RG8*/get RG8() {
      return 33323;
    },
    /*web_gl.WebGL.RG8I*/get RG8I() {
      return 33335;
    },
    /*web_gl.WebGL.RG8UI*/get RG8UI() {
      return 33336;
    },
    /*web_gl.WebGL.RG8_SNORM*/get RG8_SNORM() {
      return 36757;
    },
    /*web_gl.WebGL.RGB*/get RGB() {
      return 6407;
    },
    /*web_gl.WebGL.RGB10_A2*/get RGB10_A2() {
      return 32857;
    },
    /*web_gl.WebGL.RGB10_A2UI*/get RGB10_A2UI() {
      return 36975;
    },
    /*web_gl.WebGL.RGB16F*/get RGB16F() {
      return 34843;
    },
    /*web_gl.WebGL.RGB16I*/get RGB16I() {
      return 36233;
    },
    /*web_gl.WebGL.RGB16UI*/get RGB16UI() {
      return 36215;
    },
    /*web_gl.WebGL.RGB32F*/get RGB32F() {
      return 34837;
    },
    /*web_gl.WebGL.RGB32I*/get RGB32I() {
      return 36227;
    },
    /*web_gl.WebGL.RGB32UI*/get RGB32UI() {
      return 36209;
    },
    /*web_gl.WebGL.RGB565*/get RGB565() {
      return 36194;
    },
    /*web_gl.WebGL.RGB5_A1*/get RGB5_A1() {
      return 32855;
    },
    /*web_gl.WebGL.RGB8*/get RGB8() {
      return 32849;
    },
    /*web_gl.WebGL.RGB8I*/get RGB8I() {
      return 36239;
    },
    /*web_gl.WebGL.RGB8UI*/get RGB8UI() {
      return 36221;
    },
    /*web_gl.WebGL.RGB8_SNORM*/get RGB8_SNORM() {
      return 36758;
    },
    /*web_gl.WebGL.RGB9_E5*/get RGB9_E5() {
      return 35901;
    },
    /*web_gl.WebGL.RGBA*/get RGBA() {
      return 6408;
    },
    /*web_gl.WebGL.RGBA16F*/get RGBA16F() {
      return 34842;
    },
    /*web_gl.WebGL.RGBA16I*/get RGBA16I() {
      return 36232;
    },
    /*web_gl.WebGL.RGBA16UI*/get RGBA16UI() {
      return 36214;
    },
    /*web_gl.WebGL.RGBA32F*/get RGBA32F() {
      return 34836;
    },
    /*web_gl.WebGL.RGBA32I*/get RGBA32I() {
      return 36226;
    },
    /*web_gl.WebGL.RGBA32UI*/get RGBA32UI() {
      return 36208;
    },
    /*web_gl.WebGL.RGBA4*/get RGBA4() {
      return 32854;
    },
    /*web_gl.WebGL.RGBA8*/get RGBA8() {
      return 32856;
    },
    /*web_gl.WebGL.RGBA8I*/get RGBA8I() {
      return 36238;
    },
    /*web_gl.WebGL.RGBA8UI*/get RGBA8UI() {
      return 36220;
    },
    /*web_gl.WebGL.RGBA8_SNORM*/get RGBA8_SNORM() {
      return 36759;
    },
    /*web_gl.WebGL.RGBA_INTEGER*/get RGBA_INTEGER() {
      return 36249;
    },
    /*web_gl.WebGL.RGB_INTEGER*/get RGB_INTEGER() {
      return 36248;
    },
    /*web_gl.WebGL.RG_INTEGER*/get RG_INTEGER() {
      return 33320;
    },
    /*web_gl.WebGL.SAMPLER_2D*/get SAMPLER_2D() {
      return 35678;
    },
    /*web_gl.WebGL.SAMPLER_2D_ARRAY*/get SAMPLER_2D_ARRAY() {
      return 36289;
    },
    /*web_gl.WebGL.SAMPLER_2D_ARRAY_SHADOW*/get SAMPLER_2D_ARRAY_SHADOW() {
      return 36292;
    },
    /*web_gl.WebGL.SAMPLER_2D_SHADOW*/get SAMPLER_2D_SHADOW() {
      return 35682;
    },
    /*web_gl.WebGL.SAMPLER_3D*/get SAMPLER_3D() {
      return 35679;
    },
    /*web_gl.WebGL.SAMPLER_BINDING*/get SAMPLER_BINDING() {
      return 35097;
    },
    /*web_gl.WebGL.SAMPLER_CUBE*/get SAMPLER_CUBE() {
      return 35680;
    },
    /*web_gl.WebGL.SAMPLER_CUBE_SHADOW*/get SAMPLER_CUBE_SHADOW() {
      return 36293;
    },
    /*web_gl.WebGL.SAMPLES*/get SAMPLES() {
      return 32937;
    },
    /*web_gl.WebGL.SAMPLE_ALPHA_TO_COVERAGE*/get SAMPLE_ALPHA_TO_COVERAGE() {
      return 32926;
    },
    /*web_gl.WebGL.SAMPLE_BUFFERS*/get SAMPLE_BUFFERS() {
      return 32936;
    },
    /*web_gl.WebGL.SAMPLE_COVERAGE*/get SAMPLE_COVERAGE() {
      return 32928;
    },
    /*web_gl.WebGL.SAMPLE_COVERAGE_INVERT*/get SAMPLE_COVERAGE_INVERT() {
      return 32939;
    },
    /*web_gl.WebGL.SAMPLE_COVERAGE_VALUE*/get SAMPLE_COVERAGE_VALUE() {
      return 32938;
    },
    /*web_gl.WebGL.SCISSOR_BOX*/get SCISSOR_BOX() {
      return 3088;
    },
    /*web_gl.WebGL.SCISSOR_TEST*/get SCISSOR_TEST() {
      return 3089;
    },
    /*web_gl.WebGL.SEPARATE_ATTRIBS*/get SEPARATE_ATTRIBS() {
      return 35981;
    },
    /*web_gl.WebGL.SHADER_TYPE*/get SHADER_TYPE() {
      return 35663;
    },
    /*web_gl.WebGL.SHADING_LANGUAGE_VERSION*/get SHADING_LANGUAGE_VERSION() {
      return 35724;
    },
    /*web_gl.WebGL.SHORT*/get SHORT() {
      return 5122;
    },
    /*web_gl.WebGL.SIGNALED*/get SIGNALED() {
      return 37145;
    },
    /*web_gl.WebGL.SIGNED_NORMALIZED*/get SIGNED_NORMALIZED() {
      return 36764;
    },
    /*web_gl.WebGL.SRC_ALPHA*/get SRC_ALPHA() {
      return 770;
    },
    /*web_gl.WebGL.SRC_ALPHA_SATURATE*/get SRC_ALPHA_SATURATE() {
      return 776;
    },
    /*web_gl.WebGL.SRC_COLOR*/get SRC_COLOR() {
      return 768;
    },
    /*web_gl.WebGL.SRGB*/get SRGB() {
      return 35904;
    },
    /*web_gl.WebGL.SRGB8*/get SRGB8() {
      return 35905;
    },
    /*web_gl.WebGL.SRGB8_ALPHA8*/get SRGB8_ALPHA8() {
      return 35907;
    },
    /*web_gl.WebGL.STATIC_COPY*/get STATIC_COPY() {
      return 35046;
    },
    /*web_gl.WebGL.STATIC_DRAW*/get STATIC_DRAW() {
      return 35044;
    },
    /*web_gl.WebGL.STATIC_READ*/get STATIC_READ() {
      return 35045;
    },
    /*web_gl.WebGL.STENCIL*/get STENCIL() {
      return 6146;
    },
    /*web_gl.WebGL.STENCIL_ATTACHMENT*/get STENCIL_ATTACHMENT() {
      return 36128;
    },
    /*web_gl.WebGL.STENCIL_BACK_FAIL*/get STENCIL_BACK_FAIL() {
      return 34817;
    },
    /*web_gl.WebGL.STENCIL_BACK_FUNC*/get STENCIL_BACK_FUNC() {
      return 34816;
    },
    /*web_gl.WebGL.STENCIL_BACK_PASS_DEPTH_FAIL*/get STENCIL_BACK_PASS_DEPTH_FAIL() {
      return 34818;
    },
    /*web_gl.WebGL.STENCIL_BACK_PASS_DEPTH_PASS*/get STENCIL_BACK_PASS_DEPTH_PASS() {
      return 34819;
    },
    /*web_gl.WebGL.STENCIL_BACK_REF*/get STENCIL_BACK_REF() {
      return 36003;
    },
    /*web_gl.WebGL.STENCIL_BACK_VALUE_MASK*/get STENCIL_BACK_VALUE_MASK() {
      return 36004;
    },
    /*web_gl.WebGL.STENCIL_BACK_WRITEMASK*/get STENCIL_BACK_WRITEMASK() {
      return 36005;
    },
    /*web_gl.WebGL.STENCIL_BITS*/get STENCIL_BITS() {
      return 3415;
    },
    /*web_gl.WebGL.STENCIL_BUFFER_BIT*/get STENCIL_BUFFER_BIT() {
      return 1024;
    },
    /*web_gl.WebGL.STENCIL_CLEAR_VALUE*/get STENCIL_CLEAR_VALUE() {
      return 2961;
    },
    /*web_gl.WebGL.STENCIL_FAIL*/get STENCIL_FAIL() {
      return 2964;
    },
    /*web_gl.WebGL.STENCIL_FUNC*/get STENCIL_FUNC() {
      return 2962;
    },
    /*web_gl.WebGL.STENCIL_INDEX8*/get STENCIL_INDEX8() {
      return 36168;
    },
    /*web_gl.WebGL.STENCIL_PASS_DEPTH_FAIL*/get STENCIL_PASS_DEPTH_FAIL() {
      return 2965;
    },
    /*web_gl.WebGL.STENCIL_PASS_DEPTH_PASS*/get STENCIL_PASS_DEPTH_PASS() {
      return 2966;
    },
    /*web_gl.WebGL.STENCIL_REF*/get STENCIL_REF() {
      return 2967;
    },
    /*web_gl.WebGL.STENCIL_TEST*/get STENCIL_TEST() {
      return 2960;
    },
    /*web_gl.WebGL.STENCIL_VALUE_MASK*/get STENCIL_VALUE_MASK() {
      return 2963;
    },
    /*web_gl.WebGL.STENCIL_WRITEMASK*/get STENCIL_WRITEMASK() {
      return 2968;
    },
    /*web_gl.WebGL.STREAM_COPY*/get STREAM_COPY() {
      return 35042;
    },
    /*web_gl.WebGL.STREAM_DRAW*/get STREAM_DRAW() {
      return 35040;
    },
    /*web_gl.WebGL.STREAM_READ*/get STREAM_READ() {
      return 35041;
    },
    /*web_gl.WebGL.SUBPIXEL_BITS*/get SUBPIXEL_BITS() {
      return 3408;
    },
    /*web_gl.WebGL.SYNC_CONDITION*/get SYNC_CONDITION() {
      return 37139;
    },
    /*web_gl.WebGL.SYNC_FENCE*/get SYNC_FENCE() {
      return 37142;
    },
    /*web_gl.WebGL.SYNC_FLAGS*/get SYNC_FLAGS() {
      return 37141;
    },
    /*web_gl.WebGL.SYNC_FLUSH_COMMANDS_BIT*/get SYNC_FLUSH_COMMANDS_BIT() {
      return 1;
    },
    /*web_gl.WebGL.SYNC_GPU_COMMANDS_COMPLETE*/get SYNC_GPU_COMMANDS_COMPLETE() {
      return 37143;
    },
    /*web_gl.WebGL.SYNC_STATUS*/get SYNC_STATUS() {
      return 37140;
    },
    /*web_gl.WebGL.TEXTURE*/get TEXTURE() {
      return 5890;
    },
    /*web_gl.WebGL.TEXTURE0*/get TEXTURE0() {
      return 33984;
    },
    /*web_gl.WebGL.TEXTURE1*/get TEXTURE1() {
      return 33985;
    },
    /*web_gl.WebGL.TEXTURE10*/get TEXTURE10() {
      return 33994;
    },
    /*web_gl.WebGL.TEXTURE11*/get TEXTURE11() {
      return 33995;
    },
    /*web_gl.WebGL.TEXTURE12*/get TEXTURE12() {
      return 33996;
    },
    /*web_gl.WebGL.TEXTURE13*/get TEXTURE13() {
      return 33997;
    },
    /*web_gl.WebGL.TEXTURE14*/get TEXTURE14() {
      return 33998;
    },
    /*web_gl.WebGL.TEXTURE15*/get TEXTURE15() {
      return 33999;
    },
    /*web_gl.WebGL.TEXTURE16*/get TEXTURE16() {
      return 34000;
    },
    /*web_gl.WebGL.TEXTURE17*/get TEXTURE17() {
      return 34001;
    },
    /*web_gl.WebGL.TEXTURE18*/get TEXTURE18() {
      return 34002;
    },
    /*web_gl.WebGL.TEXTURE19*/get TEXTURE19() {
      return 34003;
    },
    /*web_gl.WebGL.TEXTURE2*/get TEXTURE2() {
      return 33986;
    },
    /*web_gl.WebGL.TEXTURE20*/get TEXTURE20() {
      return 34004;
    },
    /*web_gl.WebGL.TEXTURE21*/get TEXTURE21() {
      return 34005;
    },
    /*web_gl.WebGL.TEXTURE22*/get TEXTURE22() {
      return 34006;
    },
    /*web_gl.WebGL.TEXTURE23*/get TEXTURE23() {
      return 34007;
    },
    /*web_gl.WebGL.TEXTURE24*/get TEXTURE24() {
      return 34008;
    },
    /*web_gl.WebGL.TEXTURE25*/get TEXTURE25() {
      return 34009;
    },
    /*web_gl.WebGL.TEXTURE26*/get TEXTURE26() {
      return 34010;
    },
    /*web_gl.WebGL.TEXTURE27*/get TEXTURE27() {
      return 34011;
    },
    /*web_gl.WebGL.TEXTURE28*/get TEXTURE28() {
      return 34012;
    },
    /*web_gl.WebGL.TEXTURE29*/get TEXTURE29() {
      return 34013;
    },
    /*web_gl.WebGL.TEXTURE3*/get TEXTURE3() {
      return 33987;
    },
    /*web_gl.WebGL.TEXTURE30*/get TEXTURE30() {
      return 34014;
    },
    /*web_gl.WebGL.TEXTURE31*/get TEXTURE31() {
      return 34015;
    },
    /*web_gl.WebGL.TEXTURE4*/get TEXTURE4() {
      return 33988;
    },
    /*web_gl.WebGL.TEXTURE5*/get TEXTURE5() {
      return 33989;
    },
    /*web_gl.WebGL.TEXTURE6*/get TEXTURE6() {
      return 33990;
    },
    /*web_gl.WebGL.TEXTURE7*/get TEXTURE7() {
      return 33991;
    },
    /*web_gl.WebGL.TEXTURE8*/get TEXTURE8() {
      return 33992;
    },
    /*web_gl.WebGL.TEXTURE9*/get TEXTURE9() {
      return 33993;
    },
    /*web_gl.WebGL.TEXTURE_2D*/get TEXTURE_2D() {
      return 3553;
    },
    /*web_gl.WebGL.TEXTURE_2D_ARRAY*/get TEXTURE_2D_ARRAY() {
      return 35866;
    },
    /*web_gl.WebGL.TEXTURE_3D*/get TEXTURE_3D() {
      return 32879;
    },
    /*web_gl.WebGL.TEXTURE_BASE_LEVEL*/get TEXTURE_BASE_LEVEL() {
      return 33084;
    },
    /*web_gl.WebGL.TEXTURE_BINDING_2D*/get TEXTURE_BINDING_2D() {
      return 32873;
    },
    /*web_gl.WebGL.TEXTURE_BINDING_2D_ARRAY*/get TEXTURE_BINDING_2D_ARRAY() {
      return 35869;
    },
    /*web_gl.WebGL.TEXTURE_BINDING_3D*/get TEXTURE_BINDING_3D() {
      return 32874;
    },
    /*web_gl.WebGL.TEXTURE_BINDING_CUBE_MAP*/get TEXTURE_BINDING_CUBE_MAP() {
      return 34068;
    },
    /*web_gl.WebGL.TEXTURE_COMPARE_FUNC*/get TEXTURE_COMPARE_FUNC() {
      return 34893;
    },
    /*web_gl.WebGL.TEXTURE_COMPARE_MODE*/get TEXTURE_COMPARE_MODE() {
      return 34892;
    },
    /*web_gl.WebGL.TEXTURE_CUBE_MAP*/get TEXTURE_CUBE_MAP() {
      return 34067;
    },
    /*web_gl.WebGL.TEXTURE_CUBE_MAP_NEGATIVE_X*/get TEXTURE_CUBE_MAP_NEGATIVE_X() {
      return 34070;
    },
    /*web_gl.WebGL.TEXTURE_CUBE_MAP_NEGATIVE_Y*/get TEXTURE_CUBE_MAP_NEGATIVE_Y() {
      return 34072;
    },
    /*web_gl.WebGL.TEXTURE_CUBE_MAP_NEGATIVE_Z*/get TEXTURE_CUBE_MAP_NEGATIVE_Z() {
      return 34074;
    },
    /*web_gl.WebGL.TEXTURE_CUBE_MAP_POSITIVE_X*/get TEXTURE_CUBE_MAP_POSITIVE_X() {
      return 34069;
    },
    /*web_gl.WebGL.TEXTURE_CUBE_MAP_POSITIVE_Y*/get TEXTURE_CUBE_MAP_POSITIVE_Y() {
      return 34071;
    },
    /*web_gl.WebGL.TEXTURE_CUBE_MAP_POSITIVE_Z*/get TEXTURE_CUBE_MAP_POSITIVE_Z() {
      return 34073;
    },
    /*web_gl.WebGL.TEXTURE_IMMUTABLE_FORMAT*/get TEXTURE_IMMUTABLE_FORMAT() {
      return 37167;
    },
    /*web_gl.WebGL.TEXTURE_IMMUTABLE_LEVELS*/get TEXTURE_IMMUTABLE_LEVELS() {
      return 33503;
    },
    /*web_gl.WebGL.TEXTURE_MAG_FILTER*/get TEXTURE_MAG_FILTER() {
      return 10240;
    },
    /*web_gl.WebGL.TEXTURE_MAX_LEVEL*/get TEXTURE_MAX_LEVEL() {
      return 33085;
    },
    /*web_gl.WebGL.TEXTURE_MAX_LOD*/get TEXTURE_MAX_LOD() {
      return 33083;
    },
    /*web_gl.WebGL.TEXTURE_MIN_FILTER*/get TEXTURE_MIN_FILTER() {
      return 10241;
    },
    /*web_gl.WebGL.TEXTURE_MIN_LOD*/get TEXTURE_MIN_LOD() {
      return 33082;
    },
    /*web_gl.WebGL.TEXTURE_WRAP_R*/get TEXTURE_WRAP_R() {
      return 32882;
    },
    /*web_gl.WebGL.TEXTURE_WRAP_S*/get TEXTURE_WRAP_S() {
      return 10242;
    },
    /*web_gl.WebGL.TEXTURE_WRAP_T*/get TEXTURE_WRAP_T() {
      return 10243;
    },
    /*web_gl.WebGL.TIMEOUT_EXPIRED*/get TIMEOUT_EXPIRED() {
      return 37147;
    },
    /*web_gl.WebGL.TIMEOUT_IGNORED*/get TIMEOUT_IGNORED() {
      return -1;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK*/get TRANSFORM_FEEDBACK() {
      return 36386;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_ACTIVE*/get TRANSFORM_FEEDBACK_ACTIVE() {
      return 36388;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_BINDING*/get TRANSFORM_FEEDBACK_BINDING() {
      return 36389;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_BUFFER*/get TRANSFORM_FEEDBACK_BUFFER() {
      return 35982;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_BUFFER_BINDING*/get TRANSFORM_FEEDBACK_BUFFER_BINDING() {
      return 35983;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_BUFFER_MODE*/get TRANSFORM_FEEDBACK_BUFFER_MODE() {
      return 35967;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_BUFFER_SIZE*/get TRANSFORM_FEEDBACK_BUFFER_SIZE() {
      return 35973;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_BUFFER_START*/get TRANSFORM_FEEDBACK_BUFFER_START() {
      return 35972;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_PAUSED*/get TRANSFORM_FEEDBACK_PAUSED() {
      return 36387;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN*/get TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN() {
      return 35976;
    },
    /*web_gl.WebGL.TRANSFORM_FEEDBACK_VARYINGS*/get TRANSFORM_FEEDBACK_VARYINGS() {
      return 35971;
    },
    /*web_gl.WebGL.TRIANGLES*/get TRIANGLES() {
      return 4;
    },
    /*web_gl.WebGL.TRIANGLE_FAN*/get TRIANGLE_FAN() {
      return 6;
    },
    /*web_gl.WebGL.TRIANGLE_STRIP*/get TRIANGLE_STRIP() {
      return 5;
    },
    /*web_gl.WebGL.UNIFORM_ARRAY_STRIDE*/get UNIFORM_ARRAY_STRIDE() {
      return 35388;
    },
    /*web_gl.WebGL.UNIFORM_BLOCK_ACTIVE_UNIFORMS*/get UNIFORM_BLOCK_ACTIVE_UNIFORMS() {
      return 35394;
    },
    /*web_gl.WebGL.UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES*/get UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES() {
      return 35395;
    },
    /*web_gl.WebGL.UNIFORM_BLOCK_BINDING*/get UNIFORM_BLOCK_BINDING() {
      return 35391;
    },
    /*web_gl.WebGL.UNIFORM_BLOCK_DATA_SIZE*/get UNIFORM_BLOCK_DATA_SIZE() {
      return 35392;
    },
    /*web_gl.WebGL.UNIFORM_BLOCK_INDEX*/get UNIFORM_BLOCK_INDEX() {
      return 35386;
    },
    /*web_gl.WebGL.UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER*/get UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER() {
      return 35398;
    },
    /*web_gl.WebGL.UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER*/get UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER() {
      return 35396;
    },
    /*web_gl.WebGL.UNIFORM_BUFFER*/get UNIFORM_BUFFER() {
      return 35345;
    },
    /*web_gl.WebGL.UNIFORM_BUFFER_BINDING*/get UNIFORM_BUFFER_BINDING() {
      return 35368;
    },
    /*web_gl.WebGL.UNIFORM_BUFFER_OFFSET_ALIGNMENT*/get UNIFORM_BUFFER_OFFSET_ALIGNMENT() {
      return 35380;
    },
    /*web_gl.WebGL.UNIFORM_BUFFER_SIZE*/get UNIFORM_BUFFER_SIZE() {
      return 35370;
    },
    /*web_gl.WebGL.UNIFORM_BUFFER_START*/get UNIFORM_BUFFER_START() {
      return 35369;
    },
    /*web_gl.WebGL.UNIFORM_IS_ROW_MAJOR*/get UNIFORM_IS_ROW_MAJOR() {
      return 35390;
    },
    /*web_gl.WebGL.UNIFORM_MATRIX_STRIDE*/get UNIFORM_MATRIX_STRIDE() {
      return 35389;
    },
    /*web_gl.WebGL.UNIFORM_OFFSET*/get UNIFORM_OFFSET() {
      return 35387;
    },
    /*web_gl.WebGL.UNIFORM_SIZE*/get UNIFORM_SIZE() {
      return 35384;
    },
    /*web_gl.WebGL.UNIFORM_TYPE*/get UNIFORM_TYPE() {
      return 35383;
    },
    /*web_gl.WebGL.UNPACK_ALIGNMENT*/get UNPACK_ALIGNMENT() {
      return 3317;
    },
    /*web_gl.WebGL.UNPACK_COLORSPACE_CONVERSION_WEBGL*/get UNPACK_COLORSPACE_CONVERSION_WEBGL() {
      return 37443;
    },
    /*web_gl.WebGL.UNPACK_FLIP_Y_WEBGL*/get UNPACK_FLIP_Y_WEBGL() {
      return 37440;
    },
    /*web_gl.WebGL.UNPACK_IMAGE_HEIGHT*/get UNPACK_IMAGE_HEIGHT() {
      return 32878;
    },
    /*web_gl.WebGL.UNPACK_PREMULTIPLY_ALPHA_WEBGL*/get UNPACK_PREMULTIPLY_ALPHA_WEBGL() {
      return 37441;
    },
    /*web_gl.WebGL.UNPACK_ROW_LENGTH*/get UNPACK_ROW_LENGTH() {
      return 3314;
    },
    /*web_gl.WebGL.UNPACK_SKIP_IMAGES*/get UNPACK_SKIP_IMAGES() {
      return 32877;
    },
    /*web_gl.WebGL.UNPACK_SKIP_PIXELS*/get UNPACK_SKIP_PIXELS() {
      return 3316;
    },
    /*web_gl.WebGL.UNPACK_SKIP_ROWS*/get UNPACK_SKIP_ROWS() {
      return 3315;
    },
    /*web_gl.WebGL.UNSIGNALED*/get UNSIGNALED() {
      return 37144;
    },
    /*web_gl.WebGL.UNSIGNED_BYTE*/get UNSIGNED_BYTE() {
      return 5121;
    },
    /*web_gl.WebGL.UNSIGNED_INT*/get UNSIGNED_INT() {
      return 5125;
    },
    /*web_gl.WebGL.UNSIGNED_INT_10F_11F_11F_REV*/get UNSIGNED_INT_10F_11F_11F_REV() {
      return 35899;
    },
    /*web_gl.WebGL.UNSIGNED_INT_24_8*/get UNSIGNED_INT_24_8() {
      return 34042;
    },
    /*web_gl.WebGL.UNSIGNED_INT_2_10_10_10_REV*/get UNSIGNED_INT_2_10_10_10_REV() {
      return 33640;
    },
    /*web_gl.WebGL.UNSIGNED_INT_5_9_9_9_REV*/get UNSIGNED_INT_5_9_9_9_REV() {
      return 35902;
    },
    /*web_gl.WebGL.UNSIGNED_INT_SAMPLER_2D*/get UNSIGNED_INT_SAMPLER_2D() {
      return 36306;
    },
    /*web_gl.WebGL.UNSIGNED_INT_SAMPLER_2D_ARRAY*/get UNSIGNED_INT_SAMPLER_2D_ARRAY() {
      return 36311;
    },
    /*web_gl.WebGL.UNSIGNED_INT_SAMPLER_3D*/get UNSIGNED_INT_SAMPLER_3D() {
      return 36307;
    },
    /*web_gl.WebGL.UNSIGNED_INT_SAMPLER_CUBE*/get UNSIGNED_INT_SAMPLER_CUBE() {
      return 36308;
    },
    /*web_gl.WebGL.UNSIGNED_INT_VEC2*/get UNSIGNED_INT_VEC2() {
      return 36294;
    },
    /*web_gl.WebGL.UNSIGNED_INT_VEC3*/get UNSIGNED_INT_VEC3() {
      return 36295;
    },
    /*web_gl.WebGL.UNSIGNED_INT_VEC4*/get UNSIGNED_INT_VEC4() {
      return 36296;
    },
    /*web_gl.WebGL.UNSIGNED_NORMALIZED*/get UNSIGNED_NORMALIZED() {
      return 35863;
    },
    /*web_gl.WebGL.UNSIGNED_SHORT*/get UNSIGNED_SHORT() {
      return 5123;
    },
    /*web_gl.WebGL.UNSIGNED_SHORT_4_4_4_4*/get UNSIGNED_SHORT_4_4_4_4() {
      return 32819;
    },
    /*web_gl.WebGL.UNSIGNED_SHORT_5_5_5_1*/get UNSIGNED_SHORT_5_5_5_1() {
      return 32820;
    },
    /*web_gl.WebGL.UNSIGNED_SHORT_5_6_5*/get UNSIGNED_SHORT_5_6_5() {
      return 33635;
    },
    /*web_gl.WebGL.VALIDATE_STATUS*/get VALIDATE_STATUS() {
      return 35715;
    },
    /*web_gl.WebGL.VENDOR*/get VENDOR() {
      return 7936;
    },
    /*web_gl.WebGL.VERSION*/get VERSION() {
      return 7938;
    },
    /*web_gl.WebGL.VERTEX_ARRAY_BINDING*/get VERTEX_ARRAY_BINDING() {
      return 34229;
    },
    /*web_gl.WebGL.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING*/get VERTEX_ATTRIB_ARRAY_BUFFER_BINDING() {
      return 34975;
    },
    /*web_gl.WebGL.VERTEX_ATTRIB_ARRAY_DIVISOR*/get VERTEX_ATTRIB_ARRAY_DIVISOR() {
      return 35070;
    },
    /*web_gl.WebGL.VERTEX_ATTRIB_ARRAY_ENABLED*/get VERTEX_ATTRIB_ARRAY_ENABLED() {
      return 34338;
    },
    /*web_gl.WebGL.VERTEX_ATTRIB_ARRAY_INTEGER*/get VERTEX_ATTRIB_ARRAY_INTEGER() {
      return 35069;
    },
    /*web_gl.WebGL.VERTEX_ATTRIB_ARRAY_NORMALIZED*/get VERTEX_ATTRIB_ARRAY_NORMALIZED() {
      return 34922;
    },
    /*web_gl.WebGL.VERTEX_ATTRIB_ARRAY_POINTER*/get VERTEX_ATTRIB_ARRAY_POINTER() {
      return 34373;
    },
    /*web_gl.WebGL.VERTEX_ATTRIB_ARRAY_SIZE*/get VERTEX_ATTRIB_ARRAY_SIZE() {
      return 34339;
    },
    /*web_gl.WebGL.VERTEX_ATTRIB_ARRAY_STRIDE*/get VERTEX_ATTRIB_ARRAY_STRIDE() {
      return 34340;
    },
    /*web_gl.WebGL.VERTEX_ATTRIB_ARRAY_TYPE*/get VERTEX_ATTRIB_ARRAY_TYPE() {
      return 34341;
    },
    /*web_gl.WebGL.VERTEX_SHADER*/get VERTEX_SHADER() {
      return 35633;
    },
    /*web_gl.WebGL.VIEWPORT*/get VIEWPORT() {
      return 2978;
    },
    /*web_gl.WebGL.WAIT_FAILED*/get WAIT_FAILED() {
      return 37149;
    },
    /*web_gl.WebGL.ZERO*/get ZERO() {
      return 0;
    }
  }, false);
  dart.registerExtension("WebGL", web_gl.WebGL);
  web_gl._WebGL2RenderingContextBase = class _WebGL2RenderingContextBase extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl._WebGL2RenderingContextBase.__();
    }
  };
  dart.addRtiResources(web_gl._WebGL2RenderingContextBase, ["web_gl|_WebGL2RenderingContextBase", "web_gl|_WebGLRenderingContextBase", "_interceptors|JavaScriptObject", "_interceptors|Interceptor", "_interceptors|JSObject"]);
  dart.setStaticMethodSignature(web_gl._WebGL2RenderingContextBase, () => ['__']);
  dart.setLibraryUri(web_gl._WebGL2RenderingContextBase, I[179]);
  dart.registerExtension("WebGL2RenderingContextBase", web_gl._WebGL2RenderingContextBase);
  web_gl._WebGLRenderingContextBase = class _WebGLRenderingContextBase extends _interceptors.JavaScriptObject {
    static ['_#_#tearOff']() {
      return web_gl._WebGLRenderingContextBase.__();
    }
  };
  dart.addRtiResources(web_gl._WebGLRenderingContextBase, ["web_gl|_WebGLRenderingContextBase"]);
  dart.setStaticMethodSignature(web_gl._WebGLRenderingContextBase, () => ['__']);
  dart.setLibraryUri(web_gl._WebGLRenderingContextBase, I[179]);
  var _weakRef = dart.privateName(core, "_weakRef");
  core._WeakReferenceWrapper$ = dart.generic(T => {
    var __t$_WeakReferenceWrapperOfT = () => (__t$_WeakReferenceWrapperOfT = dart.constFn(T[_eval]("core|_WeakReferenceWrapper<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    class _WeakReferenceWrapper extends core.Object {
      static ['_#new#tearOff'](T, object) {
        if (object == null) dart.nullFailed(I[9], 167, 27, "object");
        return new (core._WeakReferenceWrapper$(T)).new(object);
      }
      get target() {
        let target = this[_weakRef].deref();
        if (target === void 0) return null;
        return target;
      }
    }
    (_WeakReferenceWrapper.new = function(object) {
      if (object == null) dart.nullFailed(I[9], 167, 27, "object");
      this[_weakRef] = new WeakRef(object);
      this.$ti = this.$ti || __t$_WeakReferenceWrapperOfT();
      ;
    }).prototype = _WeakReferenceWrapper.prototype;
    dart.addRtiResources(_WeakReferenceWrapper, ["core|_WeakReferenceWrapper", "core|WeakReference"]);
    dart.setGetterSignature(_WeakReferenceWrapper, () => dart.global.Object.setPrototypeOf({target: __t$TN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_WeakReferenceWrapper))));
    dart.setLibraryUri(_WeakReferenceWrapper, I[11]);
    dart.setFieldSignature(_WeakReferenceWrapper, () => dart.global.Object.setPrototypeOf({[_weakRef]: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_WeakReferenceWrapper))));
    return _WeakReferenceWrapper;
  });
  core._WeakReferenceWrapper = core._WeakReferenceWrapper$();
  var _registry = dart.privateName(core, "_registry");
  core._FinalizationRegistryWrapper$ = dart.generic(T => {
    var __t$_FinalizationRegistryWrapperOfT = () => (__t$_FinalizationRegistryWrapperOfT = dart.constFn(T[_eval]("core|_FinalizationRegistryWrapper<0>")))();
    class _FinalizationRegistryWrapper extends core.Object {
      static ['_#new#tearOff'](T, callback) {
        if (callback == null) dart.nullFailed(I[9], 190, 49, "callback");
        return new (core._FinalizationRegistryWrapper$(T)).new(callback);
      }
      attach(value, token, opts) {
        if (value == null) dart.nullFailed(I[9], 194, 22, "value");
        T[_as](token);
        let detach = opts && 'detach' in opts ? opts.detach : null;
        if (detach != null) {
          this[_registry].register(value, token, detach);
        } else {
          this[_registry].register(value, token);
        }
      }
      detach(detachToken) {
        if (detachToken == null) dart.nullFailed(I[9], 202, 22, "detachToken");
        this[_registry].unregister(detachToken);
      }
    }
    (_FinalizationRegistryWrapper.new = function(callback) {
      if (callback == null) dart.nullFailed(I[9], 190, 49, "callback");
      this[_registry] = new FinalizationRegistry(_js_helper.wrapZoneUnaryCallback(T, callback));
      this.$ti = this.$ti || __t$_FinalizationRegistryWrapperOfT();
      ;
    }).prototype = _FinalizationRegistryWrapper.prototype;
    dart.addRtiResources(_FinalizationRegistryWrapper, ["core|_FinalizationRegistryWrapper", "core|Finalizer"]);
    dart.setMethodSignature(_FinalizationRegistryWrapper, () => dart.global.Object.setPrototypeOf({
      attach: T$8.ObjectAndObjectN__Tovoid(),
      detach: T$.ObjectTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_FinalizationRegistryWrapper))));
    dart.setLibraryUri(_FinalizationRegistryWrapper, I[11]);
    dart.setFieldSignature(_FinalizationRegistryWrapper, () => dart.global.Object.setPrototypeOf({[_registry]: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_FinalizationRegistryWrapper))));
    return _FinalizationRegistryWrapper;
  });
  core._FinalizationRegistryWrapper = core._FinalizationRegistryWrapper$();
  var _errorMsg$ = dart.privateName(core, "_errorMsg");
  core._CompileTimeError = class _CompileTimeError extends core.Error {
    static ['_#new#tearOff'](_errorMsg) {
      if (_errorMsg == null) dart.nullFailed(I[9], 572, 26, "_errorMsg");
      return new core._CompileTimeError.new(_errorMsg);
    }
    toString() {
      return this[_errorMsg$];
    }
  };
  (core._CompileTimeError.new = function(_errorMsg) {
    if (_errorMsg == null) dart.nullFailed(I[9], 572, 26, "_errorMsg");
    this[_errorMsg$] = _errorMsg;
    dart.global.Object.getPrototypeOf(core._CompileTimeError).new.call(this);
    ;
  }).prototype = core._CompileTimeError.prototype;
  dart.addRtiResources(core._CompileTimeError, ["core|_CompileTimeError"]);
  dart.setLibraryUri(core._CompileTimeError, I[11]);
  dart.setFieldSignature(core._CompileTimeError, () => dart.global.Object.setPrototypeOf({[_errorMsg$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core._CompileTimeError))));
  dart.defineExtensionMethods(core._CompileTimeError, ['toString']);
  core._DuplicatedFieldInitializerError = class _DuplicatedFieldInitializerError extends core.Object {
    static ['_#new#tearOff'](_name) {
      if (_name == null) dart.nullFailed(I[9], 711, 41, "_name");
      return new core._DuplicatedFieldInitializerError.new(_name);
    }
    toString() {
      return "Error: field '" + dart.str(this[_name$]) + "' is already initialized.";
    }
  };
  (core._DuplicatedFieldInitializerError.new = function(_name) {
    if (_name == null) dart.nullFailed(I[9], 711, 41, "_name");
    this[_name$] = _name;
    ;
  }).prototype = core._DuplicatedFieldInitializerError.prototype;
  dart.addRtiResources(core._DuplicatedFieldInitializerError, ["core|_DuplicatedFieldInitializerError"]);
  dart.setLibraryUri(core._DuplicatedFieldInitializerError, I[11]);
  dart.setFieldSignature(core._DuplicatedFieldInitializerError, () => dart.global.Object.setPrototypeOf({[_name$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core._DuplicatedFieldInitializerError))));
  dart.defineExtensionMethods(core._DuplicatedFieldInitializerError, ['toString']);
  var _used$ = dart.privateName(core, "_used");
  var _digits$ = dart.privateName(core, "_digits");
  var _isNegative = dart.privateName(core, "_isNegative");
  var _isZero = dart.privateName(core, "_isZero");
  var _dlShift = dart.privateName(core, "_dlShift");
  var _drShift = dart.privateName(core, "_drShift");
  var _absCompare = dart.privateName(core, "_absCompare");
  var _absAddSetSign = dart.privateName(core, "_absAddSetSign");
  var _absSubSetSign = dart.privateName(core, "_absSubSetSign");
  var _absAndSetSign = dart.privateName(core, "_absAndSetSign");
  var _absAndNotSetSign = dart.privateName(core, "_absAndNotSetSign");
  var _absOrSetSign = dart.privateName(core, "_absOrSetSign");
  var _absXorSetSign = dart.privateName(core, "_absXorSetSign");
  var _divRem = dart.privateName(core, "_divRem");
  var _div = dart.privateName(core, "_div");
  var _rem = dart.privateName(core, "_rem");
  var _toRadixCodeUnit = dart.privateName(core, "_toRadixCodeUnit");
  var _toHexString = dart.privateName(core, "_toHexString");
  core._BigIntImpl = class _BigIntImpl extends core.Object {
    static parse(source, opts) {
      if (source == null) dart.nullFailed(I[181], 131, 35, "source");
      let radix = opts && 'radix' in opts ? opts.radix : null;
      let result = core._BigIntImpl._tryParse(source, {radix: radix});
      if (result == null) {
        dart.throw(new core.FormatException.new("Could not parse BigInt", source));
      }
      return result;
    }
    static _parseDecimal(source, isNegative) {
      if (source == null) dart.nullFailed(I[181], 142, 43, "source");
      if (isNegative == null) dart.nullFailed(I[181], 142, 56, "isNegative");
      let part = 0;
      let result = core._BigIntImpl.zero;
      let digitInPartCount = 4 - source.length[$remainder](4);
      if (digitInPartCount === 4) digitInPartCount = 0;
      for (let i = 0; i < source.length; i = i + 1) {
        part = part * 10 + source[$codeUnitAt](i) - 48;
        if ((digitInPartCount = digitInPartCount + 1) === 4) {
          result = result['*'](core._BigIntImpl._bigInt10000)['+'](core._BigIntImpl._fromInt(part));
          part = 0;
          digitInPartCount = 0;
        }
      }
      if (dart.test(isNegative)) return result._negate();
      return result;
    }
    static _codeUnitToRadixValue(codeUnit) {
      if (codeUnit == null) dart.nullFailed(I[181], 172, 40, "codeUnit");
      if (48 <= dart.notNull(codeUnit) && dart.notNull(codeUnit) <= 57) return dart.notNull(codeUnit) - 48;
      codeUnit = (dart.notNull(codeUnit) | 32) >>> 0;
      let result = dart.notNull(codeUnit) - 97 + 10;
      return result;
    }
    static _parseHex(source, startPos, isNegative) {
      let t$36378, t$36378$, t$36378$0, t$36378$1;
      if (source == null) dart.nullFailed(I[181], 192, 40, "source");
      if (startPos == null) dart.nullFailed(I[181], 192, 52, "startPos");
      if (isNegative == null) dart.nullFailed(I[181], 192, 67, "isNegative");
      let hexDigitsPerChunk = (16 / 4)[$truncate]();
      let sourceLength = source.length - dart.notNull(startPos);
      let chunkCount = (sourceLength / hexDigitsPerChunk)[$ceil]();
      let digits = _native_typed_data.NativeUint16List.new(chunkCount);
      let lastDigitLength = sourceLength - (chunkCount - 1) * hexDigitsPerChunk;
      let digitIndex = dart.notNull(digits[$length]) - 1;
      let i = startPos;
      let chunk = 0;
      for (let j = 0; j < lastDigitLength; j = j + 1) {
        let digitValue = core._BigIntImpl._codeUnitToRadixValue(source[$codeUnitAt]((t$36378 = i, i = dart.notNull(t$36378) + 1, t$36378)));
        if (dart.notNull(digitValue) >= 16) return null;
        chunk = chunk * 16 + dart.notNull(digitValue);
      }
      digits[$_set]((t$36378$ = digitIndex, digitIndex = t$36378$ - 1, t$36378$), chunk);
      while (dart.notNull(i) < source.length) {
        chunk = 0;
        for (let j = 0; j < hexDigitsPerChunk; j = j + 1) {
          let digitValue = core._BigIntImpl._codeUnitToRadixValue(source[$codeUnitAt]((t$36378$0 = i, i = dart.notNull(t$36378$0) + 1, t$36378$0)));
          if (dart.notNull(digitValue) >= 16) return null;
          chunk = chunk * 16 + dart.notNull(digitValue);
        }
        digits[$_set]((t$36378$1 = digitIndex, digitIndex = t$36378$1 - 1, t$36378$1), chunk);
      }
      if (digits[$length] === 1 && digits[$_get](0) === 0) return core._BigIntImpl.zero;
      return new core._BigIntImpl.__(isNegative, digits[$length], digits);
    }
    static _parseRadix(source, radix, isNegative) {
      if (source == null) dart.nullFailed(I[181], 226, 42, "source");
      if (radix == null) dart.nullFailed(I[181], 226, 54, "radix");
      if (isNegative == null) dart.nullFailed(I[181], 226, 66, "isNegative");
      let result = core._BigIntImpl.zero;
      let base = core._BigIntImpl._fromInt(radix);
      for (let i = 0; i < source.length; i = i + 1) {
        let digitValue = core._BigIntImpl._codeUnitToRadixValue(source[$codeUnitAt](i));
        if (dart.notNull(digitValue) >= dart.notNull(radix)) return null;
        result = result['*'](base)['+'](core._BigIntImpl._fromInt(digitValue));
      }
      if (dart.test(isNegative)) return result._negate();
      return result;
    }
    static _tryParse(source, opts) {
      let t$36378, t$36378$, t$36378$0;
      if (source == null) dart.nullFailed(I[181], 243, 40, "source");
      let radix = opts && 'radix' in opts ? opts.radix : null;
      if (source === "") return null;
      let match = core._BigIntImpl._parseRE.firstMatch(source);
      let signIndex = 1;
      let hexIndex = 3;
      let decimalIndex = 4;
      let nonDecimalHexIndex = 5;
      if (match == null) return null;
      let isNegative = match._get(signIndex) === "-";
      let decimalMatch = match._get(decimalIndex);
      let hexMatch = match._get(hexIndex);
      let nonDecimalMatch = match._get(nonDecimalHexIndex);
      if (radix == null) {
        if (decimalMatch != null) {
          return core._BigIntImpl._parseDecimal(decimalMatch, isNegative);
        }
        if (hexMatch != null) {
          return core._BigIntImpl._parseHex(hexMatch, 2, isNegative);
        }
        return null;
      }
      if (dart.notNull(radix) < 2 || dart.notNull(radix) > 36) {
        dart.throw(new core.RangeError.range(radix, 2, 36, "radix"));
      }
      if (radix === 10 && decimalMatch != null) {
        return core._BigIntImpl._parseDecimal(decimalMatch, isNegative);
      }
      if (radix === 16 && (decimalMatch != null || nonDecimalMatch != null)) {
        return core._BigIntImpl._parseHex((t$36378 = decimalMatch, t$36378 == null ? dart.nullCheck(nonDecimalMatch) : t$36378), 0, isNegative);
      }
      return core._BigIntImpl._parseRadix((t$36378$0 = (t$36378$ = decimalMatch, t$36378$ == null ? nonDecimalMatch : t$36378$), t$36378$0 == null ? dart.nullCheck(hexMatch) : t$36378$0), radix, isNegative);
    }
    static _normalize(used, digits) {
      if (used == null) dart.nullFailed(I[181], 290, 29, "used");
      if (digits == null) dart.nullFailed(I[181], 290, 46, "digits");
      while (dart.notNull(used) > 0 && digits[$_get](dart.notNull(used) - 1) === 0)
        used = dart.notNull(used) - 1;
      return used;
    }
    static ['_#_#tearOff'](isNegative, used, digits) {
      if (isNegative == null) dart.nullFailed(I[181], 298, 22, "isNegative");
      if (used == null) dart.nullFailed(I[181], 298, 38, "used");
      if (digits == null) dart.nullFailed(I[181], 298, 55, "digits");
      return new core._BigIntImpl.__(isNegative, used, digits);
    }
    static ['_#_normalized#tearOff'](isNegative, _used, _digits) {
      if (isNegative == null) dart.nullFailed(I[181], 301, 32, "isNegative");
      if (_used == null) dart.nullFailed(I[181], 301, 49, "_used");
      if (_digits == null) dart.nullFailed(I[181], 301, 61, "_digits");
      return new core._BigIntImpl._normalized(isNegative, _used, _digits);
    }
    get [_isZero]() {
      return this[_used$] === 0;
    }
    static _cloneDigits(digits, from, to, length) {
      if (digits == null) dart.nullFailed(I[181], 311, 18, "digits");
      if (from == null) dart.nullFailed(I[181], 311, 30, "from");
      if (to == null) dart.nullFailed(I[181], 311, 40, "to");
      if (length == null) dart.nullFailed(I[181], 311, 48, "length");
      let resultDigits = _native_typed_data.NativeUint16List.new(length);
      let n = dart.notNull(to) - dart.notNull(from);
      for (let i = 0; i < n; i = i + 1) {
        resultDigits[$_set](i, digits[$_get](dart.notNull(from) + i));
      }
      return resultDigits;
    }
    static from(value) {
      if (value == null) dart.nullFailed(I[181], 321, 32, "value");
      if (value === 0) return core._BigIntImpl.zero;
      if (value === 1) return core._BigIntImpl.one;
      if (value === 2) return core._BigIntImpl.two;
      if (value[$abs]() < 4294967296) return core._BigIntImpl._fromInt(value[$toInt]());
      if (typeof value == 'number') return core._BigIntImpl._fromDouble(value);
      return core._BigIntImpl._fromInt(dart.asInt(value));
    }
    static ['_#from#tearOff'](value) {
      if (value == null) dart.nullFailed(I[181], 321, 32, "value");
      return core._BigIntImpl.from(value);
    }
    static _fromInt(value) {
      let t$36378;
      if (value == null) dart.nullFailed(I[181], 333, 36, "value");
      let isNegative = dart.notNull(value) < 0;
      if (!(16 === 16)) dart.assertFailed(null, I[181], 335, 12, "_digitBits == 16");
      if (isNegative) {
        if (value === -9223372036854776000.0) {
          let digits = _native_typed_data.NativeUint16List.new(4);
          digits[$_set](3, 32768);
          return new core._BigIntImpl.__(true, 4, digits);
        }
        value = -dart.notNull(value);
      }
      if (dart.notNull(value) < 65536) {
        let digits = _native_typed_data.NativeUint16List.new(1);
        digits[$_set](0, value);
        return new core._BigIntImpl.__(isNegative, 1, digits);
      }
      if (dart.notNull(value) <= 4294967295) {
        let digits = _native_typed_data.NativeUint16List.new(2);
        digits[$_set](0, (dart.notNull(value) & 65535) >>> 0);
        digits[$_set](1, value[$rightShift](16));
        return new core._BigIntImpl.__(isNegative, 2, digits);
      }
      let bits = value[$bitLength];
      let digits = _native_typed_data.NativeUint16List.new(((bits - 1) / 16)[$truncate]() + 1);
      let i = 0;
      while (value !== 0) {
        digits[$_set]((t$36378 = i, i = t$36378 + 1, t$36378), (dart.notNull(value) & 65535) >>> 0);
        value = (dart.notNull(value) / 65536)[$truncate]();
      }
      return new core._BigIntImpl.__(isNegative, digits[$length], digits);
    }
    static ['_#_fromInt#tearOff'](value) {
      if (value == null) dart.nullFailed(I[181], 333, 36, "value");
      return core._BigIntImpl._fromInt(value);
    }
    static _fromDouble(value) {
      if (value == null) dart.nullFailed(I[181], 373, 42, "value");
      if (value[$isNaN] || value[$isInfinite]) {
        dart.throw(new core.ArgumentError.new("Value must be finite: " + dart.str(value)));
      }
      let isNegative = dart.notNull(value) < 0;
      if (isNegative) value = -dart.notNull(value);
      value = value[$floorToDouble]();
      if (value === 0) return core._BigIntImpl.zero;
      let bits = core._BigIntImpl._bitsForFromDouble;
      for (let i = 0; i < 8; i = i + 1) {
        bits[$_set](i, 0);
      }
      bits[$buffer][$asByteData]()[$setFloat64](0, value, typed_data.Endian.little);
      let biasedExponent = (dart.notNull(bits[$_get](7)) << 4 >>> 0) + bits[$_get](6)[$rightShift](4);
      let exponent = biasedExponent - 1075;
      if (!(16 === 16)) dart.assertFailed(null, I[181], 394, 12, "_digitBits == 16");
      let unshiftedDigits = _native_typed_data.NativeUint16List.new(4);
      unshiftedDigits[$_set](0, (dart.notNull(bits[$_get](1)) << 8 >>> 0) + dart.notNull(bits[$_get](0)));
      unshiftedDigits[$_set](1, (dart.notNull(bits[$_get](3)) << 8 >>> 0) + dart.notNull(bits[$_get](2)));
      unshiftedDigits[$_set](2, (dart.notNull(bits[$_get](5)) << 8 >>> 0) + dart.notNull(bits[$_get](4)));
      unshiftedDigits[$_set](3, 16 | dart.notNull(bits[$_get](6)) & 15);
      let unshiftedBig = new core._BigIntImpl._normalized(false, 4, unshiftedDigits);
      let absResult = unshiftedBig;
      if (exponent < 0) {
        absResult = unshiftedBig['>>'](-exponent);
      } else if (exponent > 0) {
        absResult = unshiftedBig['<<'](exponent);
      }
      if (isNegative) return absResult._negate();
      return absResult;
    }
    static ['_#_fromDouble#tearOff'](value) {
      if (value == null) dart.nullFailed(I[181], 373, 42, "value");
      return core._BigIntImpl._fromDouble(value);
    }
    _negate() {
      if (this[_used$] === 0) return this;
      return new core._BigIntImpl.__(!dart.test(this[_isNegative]), this[_used$], this[_digits$]);
    }
    abs() {
      return dart.test(this[_isNegative]) ? this._negate() : this;
    }
    [_dlShift](n) {
      if (n == null) dart.nullFailed(I[181], 429, 28, "n");
      let used = this[_used$];
      if (used === 0) {
        return core._BigIntImpl.zero;
      }
      let resultUsed = dart.notNull(used) + dart.notNull(n);
      let digits = this[_digits$];
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      for (let i = dart.notNull(used) - 1; i >= 0; i = i - 1) {
        resultDigits[$_set](i + dart.notNull(n), digits[$_get](i));
      }
      return new core._BigIntImpl.__(this[_isNegative], resultUsed, resultDigits);
    }
    static _dlShiftDigits(xDigits, xUsed, n, resultDigits) {
      if (xDigits == null) dart.nullFailed(I[181], 449, 18, "xDigits");
      if (xUsed == null) dart.nullFailed(I[181], 449, 31, "xUsed");
      if (n == null) dart.nullFailed(I[181], 449, 42, "n");
      if (resultDigits == null) dart.nullFailed(I[181], 449, 56, "resultDigits");
      if (xUsed === 0) {
        return 0;
      }
      if (n === 0 && resultDigits == xDigits) {
        return xUsed;
      }
      let resultUsed = dart.notNull(xUsed) + dart.notNull(n);
      for (let i = dart.notNull(xUsed) - 1; i >= 0; i = i - 1) {
        resultDigits[$_set](i + dart.notNull(n), xDigits[$_get](i));
      }
      for (let i = dart.notNull(n) - 1; i >= 0; i = i - 1) {
        resultDigits[$_set](i, 0);
      }
      return resultUsed;
    }
    [_drShift](n) {
      if (n == null) dart.nullFailed(I[181], 467, 28, "n");
      let used = this[_used$];
      if (used === 0) {
        return core._BigIntImpl.zero;
      }
      let resultUsed = dart.notNull(used) - dart.notNull(n);
      if (resultUsed <= 0) {
        return dart.test(this[_isNegative]) ? core._BigIntImpl._minusOne : core._BigIntImpl.zero;
      }
      let digits = this[_digits$];
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      for (let i = n; dart.notNull(i) < dart.notNull(used); i = dart.notNull(i) + 1) {
        resultDigits[$_set](dart.notNull(i) - dart.notNull(n), digits[$_get](i));
      }
      let result = new core._BigIntImpl.__(this[_isNegative], resultUsed, resultDigits);
      if (dart.test(this[_isNegative])) {
        for (let i = 0; i < dart.notNull(n); i = i + 1) {
          if (digits[$_get](i) !== 0) {
            return result['-'](core._BigIntImpl.one);
          }
        }
      }
      return result;
    }
    static _lsh(xDigits, xUsed, n, resultDigits) {
      if (xDigits == null) dart.nullFailed(I[181], 500, 18, "xDigits");
      if (xUsed == null) dart.nullFailed(I[181], 500, 31, "xUsed");
      if (n == null) dart.nullFailed(I[181], 500, 42, "n");
      if (resultDigits == null) dart.nullFailed(I[181], 500, 56, "resultDigits");
      if (!(dart.notNull(xUsed) > 0)) dart.assertFailed(null, I[181], 501, 12, "xUsed > 0");
      let digitShift = (dart.notNull(n) / 16)[$truncate]();
      let bitShift = n[$modulo](16);
      let carryBitShift = 16 - bitShift;
      let bitMask = (1)[$leftShift](carryBitShift) - 1;
      let carry = 0;
      for (let i = dart.notNull(xUsed) - 1; i >= 0; i = i - 1) {
        let digit = xDigits[$_get](i);
        resultDigits[$_set](i + digitShift + 1, (digit[$rightShift](carryBitShift) | carry) >>> 0);
        carry = ((dart.notNull(digit) & bitMask) >>> 0)[$leftShift](bitShift);
      }
      resultDigits[$_set](digitShift, carry);
    }
    ['<<'](shiftAmount) {
      if (shiftAmount == null) dart.nullFailed(I[181], 525, 31, "shiftAmount");
      if (dart.notNull(shiftAmount) < 0) {
        dart.throw(new core.ArgumentError.new("shift-amount must be posititve " + dart.str(shiftAmount)));
      }
      if (dart.test(this[_isZero])) return this;
      let digitShift = (dart.notNull(shiftAmount) / 16)[$truncate]();
      let bitShift = shiftAmount[$modulo](16);
      if (bitShift === 0) {
        return this[_dlShift](digitShift);
      }
      let resultUsed = dart.notNull(this[_used$]) + digitShift + 1;
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      core._BigIntImpl._lsh(this[_digits$], this[_used$], shiftAmount, resultDigits);
      return new core._BigIntImpl.__(this[_isNegative], resultUsed, resultDigits);
    }
    static _lShiftDigits(xDigits, xUsed, n, resultDigits) {
      if (xDigits == null) dart.nullFailed(I[181], 544, 18, "xDigits");
      if (xUsed == null) dart.nullFailed(I[181], 544, 31, "xUsed");
      if (n == null) dart.nullFailed(I[181], 544, 42, "n");
      if (resultDigits == null) dart.nullFailed(I[181], 544, 56, "resultDigits");
      let digitsShift = (dart.notNull(n) / 16)[$truncate]();
      let bitShift = n[$modulo](16);
      if (bitShift === 0) {
        return core._BigIntImpl._dlShiftDigits(xDigits, xUsed, digitsShift, resultDigits);
      }
      let resultUsed = dart.notNull(xUsed) + digitsShift + 1;
      core._BigIntImpl._lsh(xDigits, xUsed, n, resultDigits);
      let i = digitsShift;
      while ((i = i - 1) >= 0) {
        resultDigits[$_set](i, 0);
      }
      if (resultDigits[$_get](resultUsed - 1) === 0) {
        resultUsed = resultUsed - 1;
      }
      return resultUsed;
    }
    static _rsh(xDigits, xUsed, n, resultDigits) {
      if (xDigits == null) dart.nullFailed(I[181], 564, 18, "xDigits");
      if (xUsed == null) dart.nullFailed(I[181], 564, 31, "xUsed");
      if (n == null) dart.nullFailed(I[181], 564, 42, "n");
      if (resultDigits == null) dart.nullFailed(I[181], 564, 56, "resultDigits");
      if (!(dart.notNull(xUsed) > 0)) dart.assertFailed(null, I[181], 565, 12, "xUsed > 0");
      let digitsShift = (dart.notNull(n) / 16)[$truncate]();
      let bitShift = n[$modulo](16);
      let carryBitShift = 16 - bitShift;
      let bitMask = (1)[$leftShift](bitShift) - 1;
      let carry = xDigits[$_get](digitsShift)[$rightShift](bitShift);
      let last = dart.notNull(xUsed) - digitsShift - 1;
      for (let i = 0; i < last; i = i + 1) {
        let digit = xDigits[$_get](i + digitsShift + 1);
        resultDigits[$_set](i, (((dart.notNull(digit) & bitMask) >>> 0)[$leftShift](carryBitShift) | carry) >>> 0);
        carry = digit[$rightShift](bitShift);
      }
      resultDigits[$_set](last, carry);
    }
    ['>>'](shiftAmount) {
      if (shiftAmount == null) dart.nullFailed(I[181], 587, 31, "shiftAmount");
      if (dart.notNull(shiftAmount) < 0) {
        dart.throw(new core.ArgumentError.new("shift-amount must be posititve " + dart.str(shiftAmount)));
      }
      if (dart.test(this[_isZero])) return this;
      let digitShift = (dart.notNull(shiftAmount) / 16)[$truncate]();
      let bitShift = shiftAmount[$modulo](16);
      if (bitShift === 0) {
        return this[_drShift](digitShift);
      }
      let used = this[_used$];
      let resultUsed = dart.notNull(used) - digitShift;
      if (resultUsed <= 0) {
        return dart.test(this[_isNegative]) ? core._BigIntImpl._minusOne : core._BigIntImpl.zero;
      }
      let digits = this[_digits$];
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      core._BigIntImpl._rsh(digits, used, shiftAmount, resultDigits);
      let result = new core._BigIntImpl.__(this[_isNegative], resultUsed, resultDigits);
      if (dart.test(this[_isNegative])) {
        if ((dart.notNull(digits[$_get](digitShift)) & (1)[$leftShift](bitShift) - 1) !== 0) {
          return result['-'](core._BigIntImpl.one);
        }
        for (let i = 0; i < digitShift; i = i + 1) {
          if (digits[$_get](i) !== 0) {
            return result['-'](core._BigIntImpl.one);
          }
        }
      }
      return result;
    }
    [_absCompare](other) {
      if (other == null) dart.nullFailed(I[181], 624, 31, "other");
      return core._BigIntImpl._compareDigits(this[_digits$], this[_used$], other[_digits$], other[_used$]);
    }
    compareTo(other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 632, 39, "other");
      if (this[_isNegative] == other[_isNegative]) {
        let result = this[_absCompare](other);
        return dart.test(this[_isNegative]) ? 0 - dart.notNull(result) : result;
      }
      return dart.test(this[_isNegative]) ? -1 : 1;
    }
    static _compareDigits(digits, used, otherDigits, otherUsed) {
      if (digits == null) dart.nullFailed(I[181], 646, 18, "digits");
      if (used == null) dart.nullFailed(I[181], 646, 30, "used");
      if (otherDigits == null) dart.nullFailed(I[181], 646, 47, "otherDigits");
      if (otherUsed == null) dart.nullFailed(I[181], 646, 64, "otherUsed");
      let result = dart.notNull(used) - dart.notNull(otherUsed);
      if (result === 0) {
        for (let i = dart.notNull(used) - 1; i >= 0; i = i - 1) {
          result = dart.notNull(digits[$_get](i)) - dart.notNull(otherDigits[$_get](i));
          if (result !== 0) return result;
        }
      }
      return result;
    }
    static _absAdd(digits, used, otherDigits, otherUsed, resultDigits) {
      if (digits == null) dart.nullFailed(I[181], 659, 34, "digits");
      if (used == null) dart.nullFailed(I[181], 659, 46, "used");
      if (otherDigits == null) dart.nullFailed(I[181], 659, 63, "otherDigits");
      if (otherUsed == null) dart.nullFailed(I[181], 660, 11, "otherUsed");
      if (resultDigits == null) dart.nullFailed(I[181], 660, 33, "resultDigits");
      if (!(dart.notNull(used) >= dart.notNull(otherUsed) && dart.notNull(otherUsed) > 0)) dart.assertFailed(null, I[181], 661, 12, "used >= otherUsed && otherUsed > 0");
      let carry = 0;
      for (let i = 0; i < dart.notNull(otherUsed); i = i + 1) {
        carry = carry + (dart.notNull(digits[$_get](i)) + dart.notNull(otherDigits[$_get](i)));
        resultDigits[$_set](i, (carry & 65535) >>> 0);
        carry = carry[$rightShift](16);
      }
      for (let i = otherUsed; dart.notNull(i) < dart.notNull(used); i = dart.notNull(i) + 1) {
        carry = carry + dart.notNull(digits[$_get](i));
        resultDigits[$_set](i, (carry & 65535) >>> 0);
        carry = carry[$rightShift](16);
      }
      resultDigits[$_set](used, carry);
    }
    static _absSub(digits, used, otherDigits, otherUsed, resultDigits) {
      if (digits == null) dart.nullFailed(I[181], 678, 34, "digits");
      if (used == null) dart.nullFailed(I[181], 678, 46, "used");
      if (otherDigits == null) dart.nullFailed(I[181], 678, 63, "otherDigits");
      if (otherUsed == null) dart.nullFailed(I[181], 679, 11, "otherUsed");
      if (resultDigits == null) dart.nullFailed(I[181], 679, 33, "resultDigits");
      if (!(dart.notNull(used) >= dart.notNull(otherUsed) && dart.notNull(otherUsed) > 0)) dart.assertFailed(null, I[181], 680, 12, "used >= otherUsed && otherUsed > 0");
      let carry = 0;
      for (let i = 0; i < dart.notNull(otherUsed); i = i + 1) {
        carry = carry + (dart.notNull(digits[$_get](i)) - dart.notNull(otherDigits[$_get](i)));
        resultDigits[$_set](i, (carry & 65535) >>> 0);
        carry = 0 - (carry[$rightShift](16) & 1);
      }
      for (let i = otherUsed; dart.notNull(i) < dart.notNull(used); i = dart.notNull(i) + 1) {
        carry = carry + dart.notNull(digits[$_get](i));
        resultDigits[$_set](i, (carry & 65535) >>> 0);
        carry = 0 - (carry[$rightShift](16) & 1);
      }
    }
    [_absAddSetSign](other, isNegative) {
      if (other == null) dart.nullFailed(I[181], 700, 42, "other");
      if (isNegative == null) dart.nullFailed(I[181], 700, 54, "isNegative");
      let used = this[_used$];
      let otherUsed = other[_used$];
      if (dart.notNull(used) < dart.notNull(otherUsed)) {
        return other[_absAddSetSign](this, isNegative);
      }
      if (used === 0) {
        if (!!dart.test(isNegative)) dart.assertFailed(null, I[181], 707, 14, "!isNegative");
        return core._BigIntImpl.zero;
      }
      if (otherUsed === 0) {
        return this[_isNegative] == isNegative ? this : this._negate();
      }
      let resultUsed = dart.notNull(used) + 1;
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      core._BigIntImpl._absAdd(this[_digits$], used, other[_digits$], otherUsed, resultDigits);
      return new core._BigIntImpl.__(isNegative, resultUsed, resultDigits);
    }
    [_absSubSetSign](other, isNegative) {
      if (other == null) dart.nullFailed(I[181], 722, 42, "other");
      if (isNegative == null) dart.nullFailed(I[181], 722, 54, "isNegative");
      if (!(dart.notNull(this[_absCompare](other)) >= 0)) dart.assertFailed(null, I[181], 723, 12, "_absCompare(other) >= 0");
      let used = this[_used$];
      if (used === 0) {
        if (!!dart.test(isNegative)) dart.assertFailed(null, I[181], 726, 14, "!isNegative");
        return core._BigIntImpl.zero;
      }
      let otherUsed = other[_used$];
      if (otherUsed === 0) {
        return this[_isNegative] == isNegative ? this : this._negate();
      }
      let resultDigits = _native_typed_data.NativeUint16List.new(used);
      core._BigIntImpl._absSub(this[_digits$], used, other[_digits$], otherUsed, resultDigits);
      return new core._BigIntImpl.__(isNegative, used, resultDigits);
    }
    [_absAndSetSign](other, isNegative) {
      if (other == null) dart.nullFailed(I[181], 739, 42, "other");
      if (isNegative == null) dart.nullFailed(I[181], 739, 54, "isNegative");
      let resultUsed = core._min(this[_used$], other[_used$]);
      let digits = this[_digits$];
      let otherDigits = other[_digits$];
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      for (let i = 0; i < dart.notNull(resultUsed); i = i + 1) {
        resultDigits[$_set](i, (dart.notNull(digits[$_get](i)) & dart.notNull(otherDigits[$_get](i))) >>> 0);
      }
      return new core._BigIntImpl.__(isNegative, resultUsed, resultDigits);
    }
    [_absAndNotSetSign](other, isNegative) {
      if (other == null) dart.nullFailed(I[181], 751, 45, "other");
      if (isNegative == null) dart.nullFailed(I[181], 751, 57, "isNegative");
      let resultUsed = this[_used$];
      let digits = this[_digits$];
      let otherDigits = other[_digits$];
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      let m = core._min(resultUsed, other[_used$]);
      for (let i = 0; i < dart.notNull(m); i = i + 1) {
        resultDigits[$_set](i, (dart.notNull(digits[$_get](i)) & ~dart.notNull(otherDigits[$_get](i)) >>> 0) >>> 0);
      }
      for (let i = m; dart.notNull(i) < dart.notNull(resultUsed); i = dart.notNull(i) + 1) {
        resultDigits[$_set](i, digits[$_get](i));
      }
      return new core._BigIntImpl.__(isNegative, resultUsed, resultDigits);
    }
    [_absOrSetSign](other, isNegative) {
      if (other == null) dart.nullFailed(I[181], 767, 41, "other");
      if (isNegative == null) dart.nullFailed(I[181], 767, 53, "isNegative");
      let used = this[_used$];
      let otherUsed = other[_used$];
      let resultUsed = core._max(used, otherUsed);
      let digits = this[_digits$];
      let otherDigits = other[_digits$];
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      let l = null;
      let m = null;
      if (dart.notNull(used) < dart.notNull(otherUsed)) {
        l = other;
        m = used;
      } else {
        l = this;
        m = otherUsed;
      }
      for (let i = 0; i < dart.notNull(m); i = i + 1) {
        resultDigits[$_set](i, (dart.notNull(digits[$_get](i)) | dart.notNull(otherDigits[$_get](i))) >>> 0);
      }
      let lDigits = l[_digits$];
      for (let i = m; dart.notNull(i) < dart.notNull(resultUsed); i = dart.notNull(i) + 1) {
        resultDigits[$_set](i, lDigits[$_get](i));
      }
      return new core._BigIntImpl.__(isNegative, resultUsed, resultDigits);
    }
    [_absXorSetSign](other, isNegative) {
      if (other == null) dart.nullFailed(I[181], 794, 42, "other");
      if (isNegative == null) dart.nullFailed(I[181], 794, 54, "isNegative");
      let used = this[_used$];
      let otherUsed = other[_used$];
      let resultUsed = core._max(used, otherUsed);
      let digits = this[_digits$];
      let otherDigits = other[_digits$];
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      let l = null;
      let m = null;
      if (dart.notNull(used) < dart.notNull(otherUsed)) {
        l = other;
        m = used;
      } else {
        l = this;
        m = otherUsed;
      }
      for (let i = 0; i < dart.notNull(m); i = i + 1) {
        resultDigits[$_set](i, (dart.notNull(digits[$_get](i)) ^ dart.notNull(otherDigits[$_get](i))) >>> 0);
      }
      let lDigits = l[_digits$];
      for (let i = m; dart.notNull(i) < dart.notNull(resultUsed); i = dart.notNull(i) + 1) {
        resultDigits[$_set](i, lDigits[$_get](i));
      }
      return new core._BigIntImpl.__(isNegative, resultUsed, resultDigits);
    }
    ['&'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 828, 48, "other");
      if (dart.test(this[_isZero]) || dart.test(other[_isZero])) return core._BigIntImpl.zero;
      if (this[_isNegative] == other[_isNegative]) {
        if (dart.test(this[_isNegative])) {
          let this1 = this[_absSubSetSign](core._BigIntImpl.one, true);
          let other1 = other[_absSubSetSign](core._BigIntImpl.one, true);
          return this1[_absOrSetSign](other1, true)[_absAddSetSign](core._BigIntImpl.one, true);
        }
        return this[_absAndSetSign](other, false);
      }
      let p = null;
      let n = null;
      if (dart.test(this[_isNegative])) {
        p = other;
        n = this;
      } else {
        p = this;
        n = other;
      }
      let n1 = n[_absSubSetSign](core._BigIntImpl.one, false);
      return p[_absAndNotSetSign](n1, false);
    }
    ['|'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 865, 48, "other");
      if (dart.test(this[_isZero])) return other;
      if (dart.test(other[_isZero])) return this;
      if (this[_isNegative] == other[_isNegative]) {
        if (dart.test(this[_isNegative])) {
          let this1 = this[_absSubSetSign](core._BigIntImpl.one, true);
          let other1 = other[_absSubSetSign](core._BigIntImpl.one, true);
          return this1[_absAndSetSign](other1, true)[_absAddSetSign](core._BigIntImpl.one, true);
        }
        return this[_absOrSetSign](other, false);
      }
      let p = null;
      let n = null;
      if (dart.test(this[_isNegative])) {
        p = other;
        n = this;
      } else {
        p = this;
        n = other;
      }
      let n1 = n[_absSubSetSign](core._BigIntImpl.one, true);
      return n1[_absAndNotSetSign](p, true)[_absAddSetSign](core._BigIntImpl.one, true);
    }
    ['^'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 904, 48, "other");
      if (dart.test(this[_isZero])) return other;
      if (dart.test(other[_isZero])) return this;
      if (this[_isNegative] == other[_isNegative]) {
        if (dart.test(this[_isNegative])) {
          let this1 = this[_absSubSetSign](core._BigIntImpl.one, true);
          let other1 = other[_absSubSetSign](core._BigIntImpl.one, true);
          return this1[_absXorSetSign](other1, false);
        }
        return this[_absXorSetSign](other, false);
      }
      let p = null;
      let n = null;
      if (dart.test(this[_isNegative])) {
        p = other;
        n = this;
      } else {
        p = this;
        n = other;
      }
      let n1 = n[_absSubSetSign](core._BigIntImpl.one, true);
      return p[_absXorSetSign](n1, true)[_absAddSetSign](core._BigIntImpl.one, true);
    }
    ['~']() {
      if (dart.test(this[_isZero])) return core._BigIntImpl._minusOne;
      if (dart.test(this[_isNegative])) {
        return this[_absSubSetSign](core._BigIntImpl.one, false);
      }
      return this[_absAddSetSign](core._BigIntImpl.one, true);
    }
    ['+'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 950, 48, "other");
      if (dart.test(this[_isZero])) return other;
      if (dart.test(other[_isZero])) return this;
      let isNegative = this[_isNegative];
      if (isNegative == other[_isNegative]) {
        return this[_absAddSetSign](other, isNegative);
      }
      if (dart.notNull(this[_absCompare](other)) >= 0) {
        return this[_absSubSetSign](other, isNegative);
      }
      return other[_absSubSetSign](this, !dart.test(isNegative));
    }
    ['-'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 968, 48, "other");
      if (dart.test(this[_isZero])) return other._negate();
      if (dart.test(other[_isZero])) return this;
      let isNegative = this[_isNegative];
      if (isNegative != other[_isNegative]) {
        return this[_absAddSetSign](other, isNegative);
      }
      if (dart.notNull(this[_absCompare](other)) >= 0) {
        return this[_absSubSetSign](other, isNegative);
      }
      return other[_absSubSetSign](this, !dart.test(isNegative));
    }
    static _mulAdd(x, multiplicandDigits, i, accumulatorDigits, j, n) {
      let t$36378, t$36378$, t$36378$0;
      if (x == null) dart.nullFailed(I[181], 997, 27, "x");
      if (multiplicandDigits == null) dart.nullFailed(I[181], 997, 41, "multiplicandDigits");
      if (i == null) dart.nullFailed(I[181], 997, 65, "i");
      if (accumulatorDigits == null) dart.nullFailed(I[181], 998, 18, "accumulatorDigits");
      if (j == null) dart.nullFailed(I[181], 998, 41, "j");
      if (n == null) dart.nullFailed(I[181], 998, 48, "n");
      if (x === 0) {
        return;
      }
      let c = 0;
      while ((n = dart.notNull(n) - 1) >= 0) {
        let product = dart.notNull(x) * dart.notNull(multiplicandDigits[$_get]((t$36378 = i, i = dart.notNull(t$36378) + 1, t$36378)));
        let combined = product + dart.notNull(accumulatorDigits[$_get](j)) + c;
        accumulatorDigits[$_set]((t$36378$ = j, j = dart.notNull(t$36378$) + 1, t$36378$), (combined & 65535) >>> 0);
        c = (combined / 65536)[$truncate]();
      }
      while (c !== 0) {
        let l = dart.notNull(accumulatorDigits[$_get](j)) + c;
        accumulatorDigits[$_set]((t$36378$0 = j, j = dart.notNull(t$36378$0) + 1, t$36378$0), (l & 65535) >>> 0);
        c = (l / 65536)[$truncate]();
      }
    }
    ['*'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 1020, 48, "other");
      let used = this[_used$];
      let otherUsed = other[_used$];
      if (used === 0 || otherUsed === 0) {
        return core._BigIntImpl.zero;
      }
      let resultUsed = dart.notNull(used) + dart.notNull(otherUsed);
      let digits = this[_digits$];
      let otherDigits = other[_digits$];
      let resultDigits = _native_typed_data.NativeUint16List.new(resultUsed);
      let i = 0;
      while (i < dart.notNull(otherUsed)) {
        core._BigIntImpl._mulAdd(otherDigits[$_get](i), digits, 0, resultDigits, i, used);
        i = i + 1;
      }
      return new core._BigIntImpl.__(this[_isNegative] != other[_isNegative], resultUsed, resultDigits);
    }
    static _mulDigits(xDigits, xUsed, otherDigits, otherUsed, resultDigits) {
      if (xDigits == null) dart.nullFailed(I[181], 1041, 36, "xDigits");
      if (xUsed == null) dart.nullFailed(I[181], 1041, 49, "xUsed");
      if (otherDigits == null) dart.nullFailed(I[181], 1041, 67, "otherDigits");
      if (otherUsed == null) dart.nullFailed(I[181], 1042, 11, "otherUsed");
      if (resultDigits == null) dart.nullFailed(I[181], 1042, 33, "resultDigits");
      let resultUsed = dart.notNull(xUsed) + dart.notNull(otherUsed);
      let i = resultUsed;
      if (!(dart.notNull(resultDigits[$length]) >= i)) dart.assertFailed(null, I[181], 1045, 12, "resultDigits.length >= i");
      while ((i = i - 1) >= 0) {
        resultDigits[$_set](i, 0);
      }
      i = 0;
      while (i < dart.notNull(otherUsed)) {
        core._BigIntImpl._mulAdd(otherDigits[$_get](i), xDigits, 0, resultDigits, i, xUsed);
        i = i + 1;
      }
      return resultUsed;
    }
    static _estimateQuotientDigit(topDigitDivisor, digits, i) {
      if (topDigitDivisor == null) dart.nullFailed(I[181], 1059, 11, "topDigitDivisor");
      if (digits == null) dart.nullFailed(I[181], 1059, 39, "digits");
      if (i == null) dart.nullFailed(I[181], 1059, 51, "i");
      if (digits[$_get](i) == topDigitDivisor) return 65535;
      let quotientDigit = (((digits[$_get](i)[$leftShift](16) | dart.notNull(digits[$_get](dart.notNull(i) - 1))) >>> 0) / dart.notNull(topDigitDivisor))[$truncate]();
      if (quotientDigit > 65535) return 65535;
      return quotientDigit;
    }
    [_div](other) {
      if (other == null) dart.nullFailed(I[181], 1068, 32, "other");
      if (!(dart.notNull(other[_used$]) > 0)) dart.assertFailed(null, I[181], 1069, 12, "other._used > 0");
      if (dart.notNull(this[_used$]) < dart.notNull(other[_used$])) {
        return core._BigIntImpl.zero;
      }
      this[_divRem](other);
      let lastQuo_used = dart.nullCheck(core._BigIntImpl._lastQuoRemUsed) - dart.nullCheck(core._BigIntImpl._lastRemUsed);
      let quo_digits = core._BigIntImpl._cloneDigits(dart.nullCheck(core._BigIntImpl._lastQuoRemDigits), dart.nullCheck(core._BigIntImpl._lastRemUsed), dart.nullCheck(core._BigIntImpl._lastQuoRemUsed), lastQuo_used);
      let quo = new core._BigIntImpl.__(false, lastQuo_used, quo_digits);
      if (this[_isNegative] != other[_isNegative] && dart.notNull(quo[_used$]) > 0) {
        quo = quo._negate();
      }
      return quo;
    }
    [_rem](other) {
      if (other == null) dart.nullFailed(I[181], 1087, 32, "other");
      if (!(dart.notNull(other[_used$]) > 0)) dart.assertFailed(null, I[181], 1088, 12, "other._used > 0");
      if (dart.notNull(this[_used$]) < dart.notNull(other[_used$])) {
        return this;
      }
      this[_divRem](other);
      let remDigits = core._BigIntImpl._cloneDigits(dart.nullCheck(core._BigIntImpl._lastQuoRemDigits), 0, dart.nullCheck(core._BigIntImpl._lastRemUsed), dart.nullCheck(core._BigIntImpl._lastRemUsed));
      let rem = new core._BigIntImpl.__(false, dart.nullCheck(core._BigIntImpl._lastRemUsed), remDigits);
      if (dart.nullCheck(core._BigIntImpl._lastRem_nsh) > 0) {
        rem = rem['>>'](dart.nullCheck(core._BigIntImpl._lastRem_nsh));
      }
      if (dart.test(this[_isNegative]) && dart.notNull(rem[_used$]) > 0) {
        rem = rem._negate();
      }
      return rem;
    }
    [_divRem](other) {
      let t$36378, t$36378$;
      if (other == null) dart.nullFailed(I[181], 1115, 28, "other");
      if (this[_used$] == core._BigIntImpl._lastDividendUsed && other[_used$] == core._BigIntImpl._lastDivisorUsed && this[_digits$] == core._BigIntImpl._lastDividendDigits && other[_digits$] == core._BigIntImpl._lastDivisorDigits) {
        return;
      }
      if (!(dart.notNull(this[_used$]) >= dart.notNull(other[_used$]))) dart.assertFailed(null, I[181], 1123, 12, "_used >= other._used");
      let nsh = 16 - other[_digits$][$_get](dart.notNull(other[_used$]) - 1)[$bitLength];
      let resultDigits = null;
      let resultUsed = null;
      let yDigits = null;
      let yUsed = null;
      if (nsh > 0) {
        yDigits = _native_typed_data.NativeUint16List.new(dart.notNull(other[_used$]) + 5);
        yUsed = core._BigIntImpl._lShiftDigits(other[_digits$], other[_used$], nsh, yDigits);
        resultDigits = _native_typed_data.NativeUint16List.new(dart.notNull(this[_used$]) + 5);
        resultUsed = core._BigIntImpl._lShiftDigits(this[_digits$], this[_used$], nsh, resultDigits);
      } else {
        yDigits = other[_digits$];
        yUsed = other[_used$];
        resultDigits = core._BigIntImpl._cloneDigits(this[_digits$], 0, this[_used$], dart.notNull(this[_used$]) + 2);
        resultUsed = this[_used$];
      }
      let topDigitDivisor = yDigits[$_get](dart.notNull(yUsed) - 1);
      let i = resultUsed;
      let j = dart.notNull(i) - dart.notNull(yUsed);
      let tmpDigits = _native_typed_data.NativeUint16List.new(i);
      let tmpUsed = core._BigIntImpl._dlShiftDigits(yDigits, yUsed, j, tmpDigits);
      if (dart.notNull(core._BigIntImpl._compareDigits(resultDigits, resultUsed, tmpDigits, tmpUsed)) >= 0) {
        if (!(i == resultUsed)) dart.assertFailed(null, I[181], 1156, 14, "i == resultUsed");
        resultDigits[$_set]((t$36378 = resultUsed, resultUsed = dart.notNull(t$36378) + 1, t$36378), 1);
        core._BigIntImpl._absSub(resultDigits, resultUsed, tmpDigits, tmpUsed, resultDigits);
      } else {
        resultDigits[$_set]((t$36378$ = resultUsed, resultUsed = dart.notNull(t$36378$) + 1, t$36378$), 0);
      }
      let nyDigits = _native_typed_data.NativeUint16List.new(dart.notNull(yUsed) + 2);
      nyDigits[$_set](yUsed, 1);
      core._BigIntImpl._absSub(nyDigits, dart.notNull(yUsed) + 1, yDigits, yUsed, nyDigits);
      i = dart.notNull(i) - 1;
      while (j > 0) {
        let estimatedQuotientDigit = core._BigIntImpl._estimateQuotientDigit(topDigitDivisor, resultDigits, i);
        j = j - 1;
        core._BigIntImpl._mulAdd(estimatedQuotientDigit, nyDigits, 0, resultDigits, j, yUsed);
        if (dart.notNull(resultDigits[$_get](i)) < dart.notNull(estimatedQuotientDigit)) {
          let tmpUsed = core._BigIntImpl._dlShiftDigits(nyDigits, yUsed, j, tmpDigits);
          core._BigIntImpl._absSub(resultDigits, resultUsed, tmpDigits, tmpUsed, resultDigits);
          while (dart.notNull(resultDigits[$_get](i)) < (estimatedQuotientDigit = dart.notNull(estimatedQuotientDigit) - 1)) {
            core._BigIntImpl._absSub(resultDigits, resultUsed, tmpDigits, tmpUsed, resultDigits);
          }
        }
        i = dart.notNull(i) - 1;
      }
      core._BigIntImpl._lastDividendDigits = this[_digits$];
      core._BigIntImpl._lastDividendUsed = this[_used$];
      core._BigIntImpl._lastDivisorDigits = other[_digits$];
      core._BigIntImpl._lastDivisorUsed = other[_used$];
      core._BigIntImpl._lastQuoRemDigits = resultDigits;
      core._BigIntImpl._lastQuoRemUsed = resultUsed;
      core._BigIntImpl._lastRemUsed = yUsed;
      core._BigIntImpl._lastRem_nsh = nsh;
    }
    get hashCode() {
      function combine(hash, value) {
        if (hash == null) dart.nullFailed(I[181], 1208, 21, "hash");
        if (value == null) dart.nullFailed(I[181], 1208, 31, "value");
        hash = 536870911 & dart.notNull(hash) + dart.notNull(value);
        hash = 536870911 & dart.notNull(hash) + ((524287 & dart.notNull(hash)) << 10);
        return (dart.notNull(hash) ^ hash[$rightShift](6)) >>> 0;
      }
      dart.fn(combine, T$.intAndintToint());
      function finish(hash) {
        if (hash == null) dart.nullFailed(I[181], 1214, 20, "hash");
        hash = 536870911 & dart.notNull(hash) + ((67108863 & dart.notNull(hash)) << 3);
        hash = (dart.notNull(hash) ^ hash[$rightShift](11)) >>> 0;
        return 536870911 & dart.notNull(hash) + ((16383 & dart.notNull(hash)) << 15);
      }
      dart.fn(finish, T$.intToint());
      if (dart.test(this[_isZero])) return 6707;
      let hash = dart.test(this[_isNegative]) ? 83585 : 429689;
      for (let i = 0; i < dart.notNull(this[_used$]); i = i + 1) {
        hash = combine(hash, this[_digits$][$_get](i));
      }
      return finish(hash);
    }
    _equals(other) {
      if (other == null) return false;
      return T$8._BigIntImpl()[_is](other) && this.compareTo(other) === 0;
    }
    get bitLength() {
      if (this[_used$] === 0) return 0;
      if (dart.test(this[_isNegative])) return this['~']().bitLength;
      return 16 * (dart.notNull(this[_used$]) - 1) + this[_digits$][$_get](dart.notNull(this[_used$]) - 1)[$bitLength];
    }
    ['~/'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 1281, 49, "other");
      if (other[_used$] === 0) {
        dart.throw(C[471] || CT.C471);
      }
      return this[_div](other);
    }
    remainder(other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 1294, 47, "other");
      if (other[_used$] === 0) {
        dart.throw(C[471] || CT.C471);
      }
      return this[_rem](other);
    }
    ['/'](other) {
      if (other == null) dart.nullFailed(I[181], 1302, 28, "other");
      return dart.notNull(this.toDouble()) / dart.notNull(other.toDouble());
    }
    ['<'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 1305, 41, "other");
      return dart.notNull(this.compareTo(other)) < 0;
    }
    ['<='](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 1308, 42, "other");
      return dart.notNull(this.compareTo(other)) <= 0;
    }
    ['>'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 1311, 41, "other");
      return dart.notNull(this.compareTo(other)) > 0;
    }
    ['>='](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 1314, 42, "other");
      return dart.notNull(this.compareTo(other)) >= 0;
    }
    ['%'](other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 1325, 48, "other");
      if (other[_used$] === 0) {
        dart.throw(C[471] || CT.C471);
      }
      let result = this[_rem](other);
      if (dart.test(result[_isNegative])) {
        if (dart.test(other[_isNegative])) {
          result = result['-'](other);
        } else {
          result = result['+'](other);
        }
      }
      return result;
    }
    get sign() {
      if (this[_used$] === 0) return 0;
      return dart.test(this[_isNegative]) ? -1 : 1;
    }
    get isEven() {
      return this[_used$] === 0 || (dart.notNull(this[_digits$][$_get](0)) & 1) === 0;
    }
    get isOdd() {
      return !dart.test(this.isEven);
    }
    get isNegative() {
      return this[_isNegative];
    }
    pow(exponent) {
      if (exponent == null) dart.nullFailed(I[181], 1358, 23, "exponent");
      if (dart.notNull(exponent) < 0) {
        dart.throw(new core.ArgumentError.new("Exponent must not be negative: " + dart.str(exponent)));
      }
      if (exponent === 0) return core._BigIntImpl.one;
      let result = core._BigIntImpl.one;
      let base = this;
      while (exponent !== 0) {
        if ((dart.notNull(exponent) & 1) === 1) {
          result = result['*'](base);
        }
        exponent = exponent[$rightShift](1);
        if (exponent !== 0) {
          base = base['*'](base);
        }
      }
      return result;
    }
    modPow(exponent, modulus) {
      T$8._BigIntImpl()[_as](exponent);
      if (exponent == null) dart.nullFailed(I[181], 1385, 29, "exponent");
      T$8._BigIntImpl()[_as](modulus);
      if (modulus == null) dart.nullFailed(I[181], 1385, 61, "modulus");
      if (dart.test(exponent[_isNegative])) {
        dart.throw(new core.ArgumentError.new("exponent must be positive: " + dart.str(exponent)));
      }
      if (dart.test(modulus['<='](core._BigIntImpl.zero))) {
        dart.throw(new core.ArgumentError.new("modulus must be strictly positive: " + dart.str(modulus)));
      }
      if (dart.test(exponent[_isZero])) return core._BigIntImpl.one;
      let modulusUsed = modulus[_used$];
      let modulusUsed2p4 = 2 * dart.notNull(modulusUsed) + 4;
      let exponentBitlen = exponent.bitLength;
      if (dart.notNull(exponentBitlen) <= 0) return core._BigIntImpl.one;
      let z = new core._BigIntClassic.new(modulus);
      let resultDigits = _native_typed_data.NativeUint16List.new(modulusUsed2p4);
      let result2Digits = _native_typed_data.NativeUint16List.new(modulusUsed2p4);
      let gDigits = _native_typed_data.NativeUint16List.new(modulusUsed);
      let gUsed = z.convert(this, gDigits);
      for (let j = dart.notNull(gUsed) - 1; j >= 0; j = j - 1) {
        resultDigits[$_set](j, gDigits[$_get](j));
      }
      let resultUsed = gUsed;
      let result2Used = null;
      for (let i = dart.notNull(exponentBitlen) - 2; i >= 0; i = i - 1) {
        result2Used = z.sqr(resultDigits, resultUsed, result2Digits);
        if (!dart.test(exponent['&'](core._BigIntImpl.one['<<'](i))[_isZero])) {
          resultUsed = z.mul(result2Digits, result2Used, gDigits, gUsed, resultDigits);
        } else {
          let tmpDigits = resultDigits;
          let tmpUsed = resultUsed;
          resultDigits = result2Digits;
          resultUsed = result2Used;
          result2Digits = tmpDigits;
          result2Used = tmpUsed;
        }
      }
      return z.revert(resultDigits, resultUsed);
    }
    static _binaryGcd(x, y, inv) {
      if (x == null) dart.nullFailed(I[181], 1431, 45, "x");
      if (y == null) dart.nullFailed(I[181], 1431, 60, "y");
      if (inv == null) dart.nullFailed(I[181], 1431, 68, "inv");
      let xDigits = x[_digits$];
      let yDigits = y[_digits$];
      let xUsed = x[_used$];
      let yUsed = y[_used$];
      let maxUsed = dart.notNull(xUsed) > dart.notNull(yUsed) ? xUsed : yUsed;
      let unshiftedMaxUsed = maxUsed;
      xDigits = core._BigIntImpl._cloneDigits(xDigits, 0, xUsed, maxUsed);
      yDigits = core._BigIntImpl._cloneDigits(yDigits, 0, yUsed, maxUsed);
      let shiftAmount = 0;
      if (dart.test(inv)) {
        if (yUsed === 1 && yDigits[$_get](0) === 1) return core._BigIntImpl.one;
        if (yUsed === 0 || yDigits[$_get](0)[$isEven] && xDigits[$_get](0)[$isEven]) {
          dart.throw(core.Exception.new("Not coprime"));
        }
      } else {
        if (dart.test(x[_isZero])) {
          dart.throw(new core.ArgumentError.value(0, "this", "must not be zero"));
        }
        if (dart.test(y[_isZero])) {
          dart.throw(new core.ArgumentError.value(0, "other", "must not be zero"));
        }
        if (xUsed === 1 && xDigits[$_get](0) === 1 || yUsed === 1 && yDigits[$_get](0) === 1) return core._BigIntImpl.one;
        while ((dart.notNull(xDigits[$_get](0)) & 1) === 0 && (dart.notNull(yDigits[$_get](0)) & 1) === 0) {
          core._BigIntImpl._rsh(xDigits, xUsed, 1, xDigits);
          core._BigIntImpl._rsh(yDigits, yUsed, 1, yDigits);
          shiftAmount = shiftAmount + 1;
        }
        if (shiftAmount >= 16) {
          let digitShiftAmount = (shiftAmount / 16)[$truncate]();
          xUsed = dart.notNull(xUsed) - digitShiftAmount;
          yUsed = dart.notNull(yUsed) - digitShiftAmount;
          maxUsed = dart.notNull(maxUsed) - digitShiftAmount;
        }
        if ((dart.notNull(yDigits[$_get](0)) & 1) === 1) {
          let tmpDigits = xDigits;
          let tmpUsed = xUsed;
          xDigits = yDigits;
          xUsed = yUsed;
          yDigits = tmpDigits;
          yUsed = tmpUsed;
        }
      }
      let uDigits = core._BigIntImpl._cloneDigits(xDigits, 0, xUsed, unshiftedMaxUsed);
      let vDigits = core._BigIntImpl._cloneDigits(yDigits, 0, yUsed, dart.notNull(unshiftedMaxUsed) + 2);
      let ac = (dart.notNull(xDigits[$_get](0)) & 1) === 0;
      let abcdUsed = dart.notNull(maxUsed) + 1;
      let abcdLen = abcdUsed + 2;
      let aDigits = core._dummyList;
      let aIsNegative = false;
      let cDigits = core._dummyList;
      let cIsNegative = false;
      if (ac) {
        aDigits = _native_typed_data.NativeUint16List.new(abcdLen);
        aDigits[$_set](0, 1);
        cDigits = _native_typed_data.NativeUint16List.new(abcdLen);
      }
      let bDigits = _native_typed_data.NativeUint16List.new(abcdLen);
      let bIsNegative = false;
      let dDigits = _native_typed_data.NativeUint16List.new(abcdLen);
      let dIsNegative = false;
      dDigits[$_set](0, 1);
      while (true) {
        while ((dart.notNull(uDigits[$_get](0)) & 1) === 0) {
          core._BigIntImpl._rsh(uDigits, maxUsed, 1, uDigits);
          if (ac) {
            if ((dart.notNull(aDigits[$_get](0)) & 1) === 1 || (dart.notNull(bDigits[$_get](0)) & 1) === 1) {
              if (aIsNegative) {
                if (aDigits[$_get](maxUsed) !== 0 || dart.notNull(core._BigIntImpl._compareDigits(aDigits, maxUsed, yDigits, maxUsed)) > 0) {
                  core._BigIntImpl._absSub(aDigits, abcdUsed, yDigits, maxUsed, aDigits);
                } else {
                  core._BigIntImpl._absSub(yDigits, maxUsed, aDigits, maxUsed, aDigits);
                  aIsNegative = false;
                }
              } else {
                core._BigIntImpl._absAdd(aDigits, abcdUsed, yDigits, maxUsed, aDigits);
              }
              if (bIsNegative) {
                core._BigIntImpl._absAdd(bDigits, abcdUsed, xDigits, maxUsed, bDigits);
              } else if (bDigits[$_get](maxUsed) !== 0 || dart.notNull(core._BigIntImpl._compareDigits(bDigits, maxUsed, xDigits, maxUsed)) > 0) {
                core._BigIntImpl._absSub(bDigits, abcdUsed, xDigits, maxUsed, bDigits);
              } else {
                core._BigIntImpl._absSub(xDigits, maxUsed, bDigits, maxUsed, bDigits);
                bIsNegative = true;
              }
            }
            core._BigIntImpl._rsh(aDigits, abcdUsed, 1, aDigits);
          } else if ((dart.notNull(bDigits[$_get](0)) & 1) === 1) {
            if (bIsNegative) {
              core._BigIntImpl._absAdd(bDigits, abcdUsed, xDigits, maxUsed, bDigits);
            } else if (bDigits[$_get](maxUsed) !== 0 || dart.notNull(core._BigIntImpl._compareDigits(bDigits, maxUsed, xDigits, maxUsed)) > 0) {
              core._BigIntImpl._absSub(bDigits, abcdUsed, xDigits, maxUsed, bDigits);
            } else {
              core._BigIntImpl._absSub(xDigits, maxUsed, bDigits, maxUsed, bDigits);
              bIsNegative = true;
            }
          }
          core._BigIntImpl._rsh(bDigits, abcdUsed, 1, bDigits);
        }
        while ((dart.notNull(vDigits[$_get](0)) & 1) === 0) {
          core._BigIntImpl._rsh(vDigits, maxUsed, 1, vDigits);
          if (ac) {
            if ((dart.notNull(cDigits[$_get](0)) & 1) === 1 || (dart.notNull(dDigits[$_get](0)) & 1) === 1) {
              if (cIsNegative) {
                if (cDigits[$_get](maxUsed) !== 0 || dart.notNull(core._BigIntImpl._compareDigits(cDigits, maxUsed, yDigits, maxUsed)) > 0) {
                  core._BigIntImpl._absSub(cDigits, abcdUsed, yDigits, maxUsed, cDigits);
                } else {
                  core._BigIntImpl._absSub(yDigits, maxUsed, cDigits, maxUsed, cDigits);
                  cIsNegative = false;
                }
              } else {
                core._BigIntImpl._absAdd(cDigits, abcdUsed, yDigits, maxUsed, cDigits);
              }
              if (dIsNegative) {
                core._BigIntImpl._absAdd(dDigits, abcdUsed, xDigits, maxUsed, dDigits);
              } else if (dDigits[$_get](maxUsed) !== 0 || dart.notNull(core._BigIntImpl._compareDigits(dDigits, maxUsed, xDigits, maxUsed)) > 0) {
                core._BigIntImpl._absSub(dDigits, abcdUsed, xDigits, maxUsed, dDigits);
              } else {
                core._BigIntImpl._absSub(xDigits, maxUsed, dDigits, maxUsed, dDigits);
                dIsNegative = true;
              }
            }
            core._BigIntImpl._rsh(cDigits, abcdUsed, 1, cDigits);
          } else if ((dart.notNull(dDigits[$_get](0)) & 1) === 1) {
            if (dIsNegative) {
              core._BigIntImpl._absAdd(dDigits, abcdUsed, xDigits, maxUsed, dDigits);
            } else if (dDigits[$_get](maxUsed) !== 0 || dart.notNull(core._BigIntImpl._compareDigits(dDigits, maxUsed, xDigits, maxUsed)) > 0) {
              core._BigIntImpl._absSub(dDigits, abcdUsed, xDigits, maxUsed, dDigits);
            } else {
              core._BigIntImpl._absSub(xDigits, maxUsed, dDigits, maxUsed, dDigits);
              dIsNegative = true;
            }
          }
          core._BigIntImpl._rsh(dDigits, abcdUsed, 1, dDigits);
        }
        if (dart.notNull(core._BigIntImpl._compareDigits(uDigits, maxUsed, vDigits, maxUsed)) >= 0) {
          core._BigIntImpl._absSub(uDigits, maxUsed, vDigits, maxUsed, uDigits);
          if (ac) {
            if (aIsNegative === cIsNegative) {
              let a_cmp_c = core._BigIntImpl._compareDigits(aDigits, abcdUsed, cDigits, abcdUsed);
              if (dart.notNull(a_cmp_c) > 0) {
                core._BigIntImpl._absSub(aDigits, abcdUsed, cDigits, abcdUsed, aDigits);
              } else {
                core._BigIntImpl._absSub(cDigits, abcdUsed, aDigits, abcdUsed, aDigits);
                aIsNegative = !aIsNegative && a_cmp_c !== 0;
              }
            } else {
              core._BigIntImpl._absAdd(aDigits, abcdUsed, cDigits, abcdUsed, aDigits);
            }
          }
          if (bIsNegative === dIsNegative) {
            let b_cmp_d = core._BigIntImpl._compareDigits(bDigits, abcdUsed, dDigits, abcdUsed);
            if (dart.notNull(b_cmp_d) > 0) {
              core._BigIntImpl._absSub(bDigits, abcdUsed, dDigits, abcdUsed, bDigits);
            } else {
              core._BigIntImpl._absSub(dDigits, abcdUsed, bDigits, abcdUsed, bDigits);
              bIsNegative = !bIsNegative && b_cmp_d !== 0;
            }
          } else {
            core._BigIntImpl._absAdd(bDigits, abcdUsed, dDigits, abcdUsed, bDigits);
          }
        } else {
          core._BigIntImpl._absSub(vDigits, maxUsed, uDigits, maxUsed, vDigits);
          if (ac) {
            if (cIsNegative === aIsNegative) {
              let c_cmp_a = core._BigIntImpl._compareDigits(cDigits, abcdUsed, aDigits, abcdUsed);
              if (dart.notNull(c_cmp_a) > 0) {
                core._BigIntImpl._absSub(cDigits, abcdUsed, aDigits, abcdUsed, cDigits);
              } else {
                core._BigIntImpl._absSub(aDigits, abcdUsed, cDigits, abcdUsed, cDigits);
                cIsNegative = !cIsNegative && c_cmp_a !== 0;
              }
            } else {
              core._BigIntImpl._absAdd(cDigits, abcdUsed, aDigits, abcdUsed, cDigits);
            }
          }
          if (dIsNegative === bIsNegative) {
            let d_cmp_b = core._BigIntImpl._compareDigits(dDigits, abcdUsed, bDigits, abcdUsed);
            if (dart.notNull(d_cmp_b) > 0) {
              core._BigIntImpl._absSub(dDigits, abcdUsed, bDigits, abcdUsed, dDigits);
            } else {
              core._BigIntImpl._absSub(bDigits, abcdUsed, dDigits, abcdUsed, dDigits);
              dIsNegative = !dIsNegative && d_cmp_b !== 0;
            }
          } else {
            core._BigIntImpl._absAdd(dDigits, abcdUsed, bDigits, abcdUsed, dDigits);
          }
        }
        let i = maxUsed;
        while (dart.notNull(i) > 0 && uDigits[$_get](dart.notNull(i) - 1) === 0)
          i = dart.notNull(i) - 1;
        if (i === 0) break;
      }
      if (!dart.test(inv)) {
        if (shiftAmount > 0) {
          maxUsed = core._BigIntImpl._lShiftDigits(vDigits, maxUsed, shiftAmount, vDigits);
        }
        return new core._BigIntImpl.__(false, maxUsed, vDigits);
      }
      let i = dart.notNull(maxUsed) - 1;
      while (i > 0 && vDigits[$_get](i) === 0)
        i = i - 1;
      if (i !== 0 || vDigits[$_get](0) !== 1) {
        dart.throw(core.Exception.new("Not coprime"));
      }
      if (dIsNegative) {
        while (dDigits[$_get](maxUsed) !== 0 || dart.notNull(core._BigIntImpl._compareDigits(dDigits, maxUsed, xDigits, maxUsed)) > 0) {
          core._BigIntImpl._absSub(dDigits, abcdUsed, xDigits, maxUsed, dDigits);
        }
        core._BigIntImpl._absSub(xDigits, maxUsed, dDigits, maxUsed, dDigits);
        dIsNegative = false;
      } else {
        while (dDigits[$_get](maxUsed) !== 0 || dart.notNull(core._BigIntImpl._compareDigits(dDigits, maxUsed, xDigits, maxUsed)) >= 0) {
          core._BigIntImpl._absSub(dDigits, abcdUsed, xDigits, maxUsed, dDigits);
        }
      }
      return new core._BigIntImpl.__(false, maxUsed, dDigits);
    }
    modInverse(modulus) {
      T$8._BigIntImpl()[_as](modulus);
      if (modulus == null) dart.nullFailed(I[181], 1687, 48, "modulus");
      if (dart.test(modulus['<='](core._BigIntImpl.zero))) {
        dart.throw(new core.ArgumentError.new("Modulus must be strictly positive: " + dart.str(modulus)));
      }
      if (dart.equals(modulus, core._BigIntImpl.one)) return core._BigIntImpl.zero;
      let tmp = this;
      if (dart.test(tmp[_isNegative]) || dart.notNull(tmp[_absCompare](modulus)) >= 0) {
        tmp = tmp['%'](modulus);
      }
      return core._BigIntImpl._binaryGcd(modulus, tmp, true);
    }
    gcd(other) {
      T$8._BigIntImpl()[_as](other);
      if (other == null) dart.nullFailed(I[181], 1710, 41, "other");
      if (dart.test(this[_isZero])) return other.abs();
      if (dart.test(other[_isZero])) return this.abs();
      return core._BigIntImpl._binaryGcd(this, other, false);
    }
    toUnsigned(width) {
      if (width == null) dart.nullFailed(I[181], 1740, 30, "width");
      return this['&'](core._BigIntImpl.one['<<'](width)['-'](core._BigIntImpl.one));
    }
    toSigned(width) {
      if (width == null) dart.nullFailed(I[181], 1777, 28, "width");
      let signMask = core._BigIntImpl.one['<<'](dart.notNull(width) - 1);
      return this['&'](signMask['-'](core._BigIntImpl.one))['-'](this['&'](signMask));
    }
    get isValidInt() {
      if (dart.notNull(this[_used$]) <= 3) return true;
      let asInt = this.toInt();
      if (!asInt[$toDouble]()[$isFinite]) return false;
      return dart.equals(this, core._BigIntImpl._fromInt(asInt));
    }
    toInt() {
      let result = 0;
      for (let i = dart.notNull(this[_used$]) - 1; i >= 0; i = i - 1) {
        result = result * 65536 + dart.notNull(this[_digits$][$_get](i));
      }
      return dart.test(this[_isNegative]) ? -result : result;
    }
    toDouble() {
      let t$36379, t$36378, t$36379$, t$36378$;
      if (dart.test(this[_isZero])) return 0.0;
      let resultBits = _native_typed_data.NativeUint8List.new(8);
      let length = 16 * (dart.notNull(this[_used$]) - 1) + this[_digits$][$_get](dart.notNull(this[_used$]) - 1)[$bitLength];
      if (length > 971 + 53) {
        return dart.test(this[_isNegative]) ? -1 / 0 : 1 / 0;
      }
      if (dart.test(this[_isNegative])) resultBits[$_set](7, 128);
      let biasedExponent = length - 53 + 1075;
      resultBits[$_set](6, (biasedExponent & 15) << 4);
      t$36378 = resultBits;
      t$36379 = 7;
      t$36378[$_set](t$36379, (dart.notNull(t$36378[$_get](t$36379)) | biasedExponent[$rightShift](4)) >>> 0);
      let cachedBits = 0;
      let cachedBitsLength = 0;
      let digitIndex = dart.notNull(this[_used$]) - 1;
      const readBits = n => {
        if (n == null) dart.nullFailed(I[181], 1838, 22, "n");
        while (cachedBitsLength < dart.notNull(n)) {
          let nextDigit = null;
          let nextDigitLength = 16;
          if (digitIndex < 0) {
            nextDigit = 0;
            digitIndex = digitIndex - 1;
          } else {
            nextDigit = this[_digits$][$_get](digitIndex);
            if (digitIndex === dart.notNull(this[_used$]) - 1) nextDigitLength = nextDigit[$bitLength];
            digitIndex = digitIndex - 1;
          }
          cachedBits = cachedBits[$leftShift](nextDigitLength) + dart.notNull(nextDigit);
          cachedBitsLength = cachedBitsLength + nextDigitLength;
        }
        let result = cachedBits[$rightShift](cachedBitsLength - dart.notNull(n));
        cachedBits = cachedBits - result[$leftShift](cachedBitsLength - dart.notNull(n));
        cachedBitsLength = cachedBitsLength - dart.notNull(n);
        return result;
      };
      dart.fn(readBits, T$.intToint());
      let leadingBits = dart.notNull(readBits(5)) & 15;
      t$36378$ = resultBits;
      t$36379$ = 6;
      t$36378$[$_set](t$36379$, (dart.notNull(t$36378$[$_get](t$36379$)) | leadingBits) >>> 0);
      for (let i = 5; i >= 0; i = i - 1) {
        resultBits[$_set](i, readBits(8));
      }
      function roundUp() {
        let carry = 1;
        for (let i = 0; i < 8; i = i + 1) {
          if (carry === 0) break;
          let sum = dart.notNull(resultBits[$_get](i)) + carry;
          resultBits[$_set](i, sum & 255);
          carry = sum[$rightShift](8);
        }
      }
      dart.fn(roundUp, T$.VoidTovoid());
      if (readBits(1) === 1) {
        if (resultBits[$_get](0)[$isOdd]) {
          roundUp();
        } else {
          if (cachedBits !== 0) {
            roundUp();
          } else {
            for (let i = digitIndex; i >= 0; i = i - 1) {
              if (this[_digits$][$_get](i) !== 0) {
                roundUp();
                break;
              }
            }
          }
        }
      }
      return resultBits[$buffer][$asByteData]()[$getFloat64](0, typed_data.Endian.little);
    }
    toString() {
      if (this[_used$] === 0) return "0";
      if (this[_used$] === 1) {
        if (dart.test(this[_isNegative])) return (-dart.notNull(this[_digits$][$_get](0)))[$toString]();
        return dart.toString(this[_digits$][$_get](0));
      }
      let decimalDigitChunks = G.JSArrayOfString().of([]);
      let rest = dart.test(this.isNegative) ? this._negate() : this;
      while (dart.notNull(rest[_used$]) > 1) {
        let digits4 = dart.toString(rest.remainder(core._BigIntImpl._bigInt10000));
        decimalDigitChunks[$add](digits4);
        if (digits4.length === 1) decimalDigitChunks[$add]("000");
        if (digits4.length === 2) decimalDigitChunks[$add]("00");
        if (digits4.length === 3) decimalDigitChunks[$add]("0");
        rest = rest['~/'](core._BigIntImpl._bigInt10000);
      }
      decimalDigitChunks[$add](dart.toString(rest[_digits$][$_get](0)));
      if (dart.test(this[_isNegative])) decimalDigitChunks[$add]("-");
      return decimalDigitChunks[$reversed][$join]();
    }
    [_toRadixCodeUnit](digit) {
      if (digit == null) dart.nullFailed(I[181], 1936, 28, "digit");
      if (dart.notNull(digit) < 10) return 48 + dart.notNull(digit);
      return 97 + dart.notNull(digit) - 10;
    }
    toRadixString(radix) {
      if (radix == null) dart.nullFailed(I[181], 1949, 28, "radix");
      if (dart.notNull(radix) < 2 || dart.notNull(radix) > 36) dart.throw(new core.RangeError.range(radix, 2, 36));
      if (this[_used$] === 0) return "0";
      if (this[_used$] === 1) {
        let digitString = this[_digits$][$_get](0)[$toRadixString](radix);
        if (dart.test(this[_isNegative])) return "-" + digitString;
        return digitString;
      }
      if (radix === 16) return this[_toHexString]();
      let base = core._BigIntImpl._fromInt(radix);
      let reversedDigitCodeUnits = G.JSArrayOfint().of([]);
      let rest = this.abs();
      while (!dart.test(rest[_isZero])) {
        let digit = rest.remainder(base).toInt();
        rest = rest['~/'](base);
        reversedDigitCodeUnits[$add](this[_toRadixCodeUnit](digit));
      }
      let digitString = core.String.fromCharCodes(reversedDigitCodeUnits[$reversed]);
      if (dart.test(this[_isNegative])) return "-" + dart.notNull(digitString);
      return digitString;
    }
    [_toHexString]() {
      let chars = G.JSArrayOfint().of([]);
      for (let i = 0; i < dart.notNull(this[_used$]) - 1; i = i + 1) {
        let chunk = this[_digits$][$_get](i);
        for (let j = 0; j < (16 / 4)[$truncate](); j = j + 1) {
          chars[$add](this[_toRadixCodeUnit](dart.notNull(chunk) & 15));
          chunk = chunk[$rightShift](4);
        }
      }
      let msbChunk = this[_digits$][$_get](dart.notNull(this[_used$]) - 1);
      while (msbChunk !== 0) {
        chars[$add](this[_toRadixCodeUnit](dart.notNull(msbChunk) & 15));
        msbChunk = msbChunk[$rightShift](4);
      }
      if (dart.test(this[_isNegative])) {
        chars[$add](45);
      }
      return core.String.fromCharCodes(chars[$reversed]);
    }
  };
  (core._BigIntImpl.__ = function(isNegative, used, digits) {
    if (isNegative == null) dart.nullFailed(I[181], 298, 22, "isNegative");
    if (used == null) dart.nullFailed(I[181], 298, 38, "used");
    if (digits == null) dart.nullFailed(I[181], 298, 55, "digits");
    core._BigIntImpl._normalized.call(this, isNegative, core._BigIntImpl._normalize(used, digits), digits);
  }).prototype = core._BigIntImpl.prototype;
  (core._BigIntImpl._normalized = function(isNegative, _used, _digits) {
    if (isNegative == null) dart.nullFailed(I[181], 301, 32, "isNegative");
    if (_used == null) dart.nullFailed(I[181], 301, 49, "_used");
    if (_digits == null) dart.nullFailed(I[181], 301, 61, "_digits");
    this[_used$] = _used;
    this[_digits$] = _digits;
    this[_isNegative] = _used === 0 ? false : isNegative;
    ;
  }).prototype = core._BigIntImpl.prototype;
  dart.addRtiResources(core._BigIntImpl, ["core|_BigIntImpl", "core|BigInt", "core|Comparable"]);
  dart.setMethodSignature(core._BigIntImpl, () => dart.global.Object.setPrototypeOf({
    _negate: T$8.VoidTo_BigIntImpl(),
    abs: T$8.VoidTo_BigIntImpl(),
    [_dlShift]: T$8.intTo_BigIntImpl(),
    [_drShift]: T$8.intTo_BigIntImpl(),
    '<<': T$8.intTo_BigIntImpl(),
    '>>': T$8.intTo_BigIntImpl(),
    [_absCompare]: T$8._BigIntImplToint(),
    compareTo: T$.ObjectNToint(),
    [$compareTo]: T$.ObjectNToint(),
    [_absAddSetSign]: T$8._BigIntImplAndboolTo_BigIntImpl(),
    [_absSubSetSign]: T$8._BigIntImplAndboolTo_BigIntImpl(),
    [_absAndSetSign]: T$8._BigIntImplAndboolTo_BigIntImpl(),
    [_absAndNotSetSign]: T$8._BigIntImplAndboolTo_BigIntImpl(),
    [_absOrSetSign]: T$8._BigIntImplAndboolTo_BigIntImpl(),
    [_absXorSetSign]: T$8._BigIntImplAndboolTo_BigIntImpl(),
    '&': T$8.ObjectNTo_BigIntImpl(),
    '|': T$8.ObjectNTo_BigIntImpl(),
    '^': T$8.ObjectNTo_BigIntImpl(),
    '~': T$8.VoidTo_BigIntImpl(),
    '+': T$8.ObjectNTo_BigIntImpl(),
    '-': T$8.ObjectNTo_BigIntImpl(),
    '*': T$8.ObjectNTo_BigIntImpl(),
    [_div]: T$8._BigIntImplTo_BigIntImpl(),
    [_rem]: T$8._BigIntImplTo_BigIntImpl(),
    [_divRem]: T$8._BigIntImplTovoid(),
    '~/': T$8.ObjectNTo_BigIntImpl(),
    remainder: T$8.ObjectNTo_BigIntImpl(),
    '/': T$8.BigIntTodouble(),
    '<': T$.ObjectNTobool(),
    '<=': T$.ObjectNTobool(),
    '>': T$.ObjectNTobool(),
    '>=': T$.ObjectNTobool(),
    '%': T$8.ObjectNTo_BigIntImpl(),
    pow: T$8.intTo_BigIntImpl(),
    modPow: T$8.ObjectNAndObjectNTo_BigIntImpl(),
    modInverse: T$8.ObjectNTo_BigIntImpl(),
    gcd: T$8.ObjectNTo_BigIntImpl(),
    toUnsigned: T$8.intTo_BigIntImpl(),
    toSigned: T$8.intTo_BigIntImpl(),
    toInt: T$.VoidToint(),
    toDouble: T$.VoidTodouble(),
    [_toRadixCodeUnit]: T$.intToint(),
    toRadixString: T$.intToString(),
    [_toHexString]: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core._BigIntImpl))));
  dart.setStaticMethodSignature(core._BigIntImpl, () => ['parse', '_parseDecimal', '_codeUnitToRadixValue', '_parseHex', '_parseRadix', '_tryParse', '_normalize', '_cloneDigits', 'from', '_fromInt', '_fromDouble', '_dlShiftDigits', '_lsh', '_lShiftDigits', '_rsh', '_compareDigits', '_absAdd', '_absSub', '_mulAdd', '_mulDigits', '_estimateQuotientDigit', '_binaryGcd']);
  dart.setGetterSignature(core._BigIntImpl, () => dart.global.Object.setPrototypeOf({
    [_isZero]: T$.bool(),
    bitLength: T$.int(),
    sign: T$.int(),
    isEven: T$.bool(),
    isOdd: T$.bool(),
    isNegative: T$.bool(),
    isValidInt: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core._BigIntImpl))));
  dart.setLibraryUri(core._BigIntImpl, I[11]);
  dart.setFieldSignature(core._BigIntImpl, () => dart.global.Object.setPrototypeOf({
    [_isNegative]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_digits$]: {type: T$0.Uint16List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_used$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core._BigIntImpl))));
  dart.setStaticFieldSignature(core._BigIntImpl, () => ['_digitBits', '_digitBase', '_digitMask', 'zero', 'one', 'two', '_minusOne', '_bigInt10000', '_lastDividendDigits', '_lastDividendUsed', '_lastDivisorDigits', '_lastDivisorUsed', '_lastQuoRemDigits', '_lastQuoRemUsed', '_lastRemUsed', '_lastRem_nsh', '_parseRE', '_bitsForFromDouble', '_simpleValidIntDigits']);
  dart.defineExtensionMethods(core._BigIntImpl, ['compareTo', '_equals', 'toString']);
  dart.defineExtensionAccessors(core._BigIntImpl, ['hashCode']);
  dart.defineLazy(core._BigIntImpl, {
    /*core._BigIntImpl._digitBits*/get _digitBits() {
      return 16;
    },
    /*core._BigIntImpl._digitBase*/get _digitBase() {
      return 65536;
    },
    /*core._BigIntImpl._digitMask*/get _digitMask() {
      return 65535;
    },
    /*core._BigIntImpl.zero*/get zero() {
      return core._BigIntImpl._fromInt(0);
    },
    /*core._BigIntImpl.one*/get one() {
      return core._BigIntImpl._fromInt(1);
    },
    /*core._BigIntImpl.two*/get two() {
      return core._BigIntImpl._fromInt(2);
    },
    /*core._BigIntImpl._minusOne*/get _minusOne() {
      return core._BigIntImpl.one._negate();
    },
    /*core._BigIntImpl._bigInt10000*/get _bigInt10000() {
      return core._BigIntImpl._fromInt(10000);
    },
    /*core._BigIntImpl._lastDividendDigits*/get _lastDividendDigits() {
      return null;
    },
    set _lastDividendDigits(value) {},
    /*core._BigIntImpl._lastDividendUsed*/get _lastDividendUsed() {
      return null;
    },
    set _lastDividendUsed(value) {},
    /*core._BigIntImpl._lastDivisorDigits*/get _lastDivisorDigits() {
      return null;
    },
    set _lastDivisorDigits(value) {},
    /*core._BigIntImpl._lastDivisorUsed*/get _lastDivisorUsed() {
      return null;
    },
    set _lastDivisorUsed(value) {},
    /*core._BigIntImpl._lastQuoRemDigits*/get _lastQuoRemDigits() {
      return null;
    },
    set _lastQuoRemDigits(value) {},
    /*core._BigIntImpl._lastQuoRemUsed*/get _lastQuoRemUsed() {
      return null;
    },
    set _lastQuoRemUsed(value) {},
    /*core._BigIntImpl._lastRemUsed*/get _lastRemUsed() {
      return null;
    },
    set _lastRemUsed(value) {},
    /*core._BigIntImpl._lastRem_nsh*/get _lastRem_nsh() {
      return null;
    },
    set _lastRem_nsh(value) {},
    /*core._BigIntImpl._parseRE*/get _parseRE() {
      return core.RegExp.new("^\\s*([+-]?)((0x[a-f0-9]+)|(\\d+)|([a-z0-9]+))\\s*$", {caseSensitive: false});
    },
    set _parseRE(value) {
      if (value == null) dart.nullFailed(I[181], 285, 17, "_parseRE");
    },
    /*core._BigIntImpl._bitsForFromDouble*/get _bitsForFromDouble() {
      return _native_typed_data.NativeUint8List.new(8);
    },
    /*core._BigIntImpl._simpleValidIntDigits*/get _simpleValidIntDigits() {
      return 3;
    }
  }, false);
  core._BigIntReduction = class _BigIntReduction extends core.Object {};
  (core._BigIntReduction.new = function() {
    ;
  }).prototype = core._BigIntReduction.prototype;
  dart.addRtiResources(core._BigIntReduction, ["core|_BigIntReduction"]);
  dart.setLibraryUri(core._BigIntReduction, I[11]);
  var _modulus$ = dart.privateName(core, "_modulus");
  var _normalizedModulus = dart.privateName(core, "_normalizedModulus");
  var _reduce = dart.privateName(core, "_reduce");
  core._BigIntClassic = class _BigIntClassic extends core.Object {
    static ['_#new#tearOff'](_modulus) {
      if (_modulus == null) dart.nullFailed(I[181], 2014, 23, "_modulus");
      return new core._BigIntClassic.new(_modulus);
    }
    convert(x, resultDigits) {
      if (x == null) dart.nullFailed(I[181], 2019, 27, "x");
      if (resultDigits == null) dart.nullFailed(I[181], 2019, 41, "resultDigits");
      let digits = null;
      let used = null;
      if (dart.test(x[_isNegative]) || dart.notNull(x[_absCompare](this[_modulus$])) >= 0) {
        let remainder = x[_rem](this[_modulus$]);
        if (dart.test(x[_isNegative]) && dart.notNull(remainder[_used$]) > 0) {
          if (!dart.test(remainder[_isNegative])) dart.assertFailed(null, I[181], 2025, 16, "remainder._isNegative");
          remainder = remainder['+'](this[_modulus$]);
        }
        if (!!dart.test(remainder[_isNegative])) dart.assertFailed(null, I[181], 2028, 14, "!remainder._isNegative");
        used = remainder[_used$];
        digits = remainder[_digits$];
      } else {
        used = x[_used$];
        digits = x[_digits$];
      }
      let i = used;
      while ((i = dart.notNull(i) - 1) >= 0) {
        resultDigits[$_set](i, digits[$_get](i));
      }
      return used;
    }
    revert(xDigits, xUsed) {
      if (xDigits == null) dart.nullFailed(I[181], 2042, 33, "xDigits");
      if (xUsed == null) dart.nullFailed(I[181], 2042, 46, "xUsed");
      return new core._BigIntImpl.__(false, xUsed, xDigits);
    }
    [_reduce](xDigits, xUsed) {
      if (xDigits == null) dart.nullFailed(I[181], 2046, 26, "xDigits");
      if (xUsed == null) dart.nullFailed(I[181], 2046, 39, "xUsed");
      if (dart.notNull(xUsed) < dart.notNull(this[_modulus$][_used$])) {
        return xUsed;
      }
      let reverted = this.revert(xDigits, xUsed);
      let rem = reverted[_rem](this[_normalizedModulus]);
      return this.convert(rem, xDigits);
    }
    sqr(xDigits, xUsed, resultDigits) {
      if (xDigits == null) dart.nullFailed(I[181], 2055, 22, "xDigits");
      if (xUsed == null) dart.nullFailed(I[181], 2055, 35, "xUsed");
      if (resultDigits == null) dart.nullFailed(I[181], 2055, 53, "resultDigits");
      let b = new core._BigIntImpl.__(false, xUsed, xDigits);
      let b2 = b['*'](b);
      for (let i = 0; i < dart.notNull(b2[_used$]); i = i + 1) {
        resultDigits[$_set](i, b2[_digits$][$_get](i));
      }
      for (let i = b2[_used$]; dart.notNull(i) < 2 * dart.notNull(xUsed); i = dart.notNull(i) + 1) {
        resultDigits[$_set](i, 0);
      }
      return this[_reduce](resultDigits, 2 * dart.notNull(xUsed));
    }
    mul(xDigits, xUsed, yDigits, yUsed, resultDigits) {
      if (xDigits == null) dart.nullFailed(I[181], 2067, 22, "xDigits");
      if (xUsed == null) dart.nullFailed(I[181], 2067, 35, "xUsed");
      if (yDigits == null) dart.nullFailed(I[181], 2067, 53, "yDigits");
      if (yUsed == null) dart.nullFailed(I[181], 2067, 66, "yUsed");
      if (resultDigits == null) dart.nullFailed(I[181], 2068, 18, "resultDigits");
      let resultUsed = core._BigIntImpl._mulDigits(xDigits, xUsed, yDigits, yUsed, resultDigits);
      return this[_reduce](resultDigits, resultUsed);
    }
  };
  (core._BigIntClassic.new = function(_modulus) {
    if (_modulus == null) dart.nullFailed(I[181], 2014, 23, "_modulus");
    this[_modulus$] = _modulus;
    this[_normalizedModulus] = _modulus['<<'](16 - _modulus[_digits$][$_get](dart.notNull(_modulus[_used$]) - 1)[$bitLength]);
    ;
  }).prototype = core._BigIntClassic.prototype;
  dart.addRtiResources(core._BigIntClassic, ["core|_BigIntClassic", "core|_BigIntReduction"]);
  dart.setMethodSignature(core._BigIntClassic, () => dart.global.Object.setPrototypeOf({
    convert: T$8._BigIntImplAndUint16ListToint(),
    revert: T$8.Uint16ListAndintTo_BigIntImpl(),
    [_reduce]: T$8.Uint16ListAndintToint(),
    sqr: T$8.Uint16ListAndintAndUint16ListToint(),
    mul: T$8.Uint16ListAndintAndUint16List__Toint$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core._BigIntClassic))));
  dart.setLibraryUri(core._BigIntClassic, I[11]);
  dart.setFieldSignature(core._BigIntClassic, () => dart.global.Object.setPrototypeOf({
    [_modulus$]: {type: T$8._BigIntImpl(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_normalizedModulus]: {type: T$8._BigIntImpl(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core._BigIntClassic))));
  var message$11 = dart.privateName(core, "Deprecated.message");
  core.Deprecated = class Deprecated extends core.Object {
    get message() {
      return this[message$11];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message) {
      if (message == null) dart.nullFailed(I[182], 77, 25, "message");
      return new core.Deprecated.new(message);
    }
    toString() {
      return "Deprecated feature: " + dart.str(this.message);
    }
  };
  (core.Deprecated.new = function(message) {
    if (message == null) dart.nullFailed(I[182], 77, 25, "message");
    this[message$11] = message;
    ;
  }).prototype = core.Deprecated.prototype;
  dart.addRtiResources(core.Deprecated, ["core|Deprecated"]);
  dart.setLibraryUri(core.Deprecated, I[11]);
  dart.setFieldSignature(core.Deprecated, () => dart.global.Object.setPrototypeOf({message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core.Deprecated))));
  dart.defineExtensionMethods(core.Deprecated, ['toString']);
  core._Override = class _Override extends core.Object {
    static ['_#new#tearOff']() {
      return new core._Override.new();
    }
  };
  (core._Override.new = function() {
    ;
  }).prototype = core._Override.prototype;
  dart.addRtiResources(core._Override, ["core|_Override"]);
  dart.setLibraryUri(core._Override, I[11]);
  const name$14 = pragma_name;
  const options$ = pragma_options;
  core.pragma = class pragma extends core.Object {
    get name() {
      return this[name$14];
    }
    set name(value) {
      super.name = value;
    }
    get options() {
      return this[options$];
    }
    set options(value) {
      super.options = value;
    }
    static ['_#new#tearOff'](name, options = null) {
      if (name == null) dart.nullFailed(I[182], 162, 31, "name");
      return new core.pragma.__(name, options);
    }
    static ['_#_#tearOff'](name, options = null) {
      if (name == null) dart.nullFailed(I[182], 164, 23, "name");
      return new core.pragma.__(name, options);
    }
  };
  (core.pragma.__ = function(name, options = null) {
    if (name == null) dart.nullFailed(I[182], 164, 23, "name");
    this[name$14] = name;
    this[options$] = options;
    ;
  }).prototype = core.pragma.prototype;
  dart.addRtiResources(core.pragma, ["core|pragma"]);
  dart.setStaticMethodSignature(core.pragma, () => ['new']);
  dart.setLibraryUri(core.pragma, I[11]);
  dart.setFieldSignature(core.pragma, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    options: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.pragma))));
  core.BigInt = class BigInt extends core.Object {
    static get zero() {
      return core._BigIntImpl.zero;
    }
    static get one() {
      return core._BigIntImpl.one;
    }
    static get two() {
      return core._BigIntImpl.two;
    }
    static parse(source, opts) {
      if (source == null) dart.nullFailed(I[181], 17, 30, "source");
      let radix = opts && 'radix' in opts ? opts.radix : null;
      return core._BigIntImpl.parse(source, {radix: radix});
    }
    static tryParse(source, opts) {
      if (source == null) dart.nullFailed(I[181], 21, 34, "source");
      let radix = opts && 'radix' in opts ? opts.radix : null;
      return core._BigIntImpl._tryParse(source, {radix: radix});
    }
    static ['_#from#tearOff'](value) {
      if (value == null) dart.nullFailed(I[181], 25, 27, "value");
      return core._BigIntImpl.from(value);
    }
  };
  (core.BigInt[dart.mixinNew] = function() {
  }).prototype = core.BigInt.prototype;
  dart.addRtiResources(core.BigInt, ["core|BigInt", "core|Comparable"]);
  dart.setStaticMethodSignature(core.BigInt, () => ['parse', 'tryParse', 'from']);
  dart.setStaticGetterSignature(core.BigInt, () => ['zero', 'one', 'two']);
  dart.setLibraryUri(core.BigInt, I[11]);
  core.bool = class bool extends core.Object {
    static fromEnvironment(name, opts) {
      if (name == null) dart.nullFailed(I[9], 454, 39, "name");
      let defaultValue = opts && 'defaultValue' in opts ? opts.defaultValue : false;
      if (defaultValue == null) dart.nullFailed(I[9], 454, 51, "defaultValue");
      dart.throw(new core.UnsupportedError.new("bool.fromEnvironment can only be used as a const constructor"));
    }
    static ['_#fromEnvironment#tearOff'](name, opts) {
      if (name == null) dart.nullFailed(I[9], 454, 39, "name");
      let defaultValue = opts && 'defaultValue' in opts ? opts.defaultValue : false;
      if (defaultValue == null) dart.nullFailed(I[9], 454, 51, "defaultValue");
      return core.bool.fromEnvironment(name, {defaultValue: defaultValue});
    }
    static hasEnvironment(name) {
      if (name == null) dart.nullFailed(I[9], 461, 38, "name");
      dart.throw(new core.UnsupportedError.new("bool.hasEnvironment can only be used as a const constructor"));
    }
    static ['_#hasEnvironment#tearOff'](name) {
      if (name == null) dart.nullFailed(I[9], 461, 38, "name");
      return core.bool.hasEnvironment(name);
    }
    static parse(source, opts) {
      let t$36378;
      if (source == null) dart.nullFailed(I[9], 468, 28, "source");
      let caseSensitive = opts && 'caseSensitive' in opts ? opts.caseSensitive : true;
      if (caseSensitive == null) dart.nullFailed(I[9], 468, 42, "caseSensitive");
      t$36378 = _js_helper.Primitives.parseBool(source, caseSensitive);
      return t$36378 == null ? dart.throw(new core.FormatException.new("Invalid boolean", source)) : t$36378;
    }
    static tryParse(source, opts) {
      if (source == null) dart.nullFailed(I[9], 473, 32, "source");
      let caseSensitive = opts && 'caseSensitive' in opts ? opts.caseSensitive : true;
      if (caseSensitive == null) dart.nullFailed(I[9], 473, 46, "caseSensitive");
      return _js_helper.Primitives.parseBool(source, caseSensitive);
    }
    get [$hashCode]() {
      return super[$hashCode];
    }
    [$bitAnd](other) {
      if (other == null) dart.nullFailed(I[183], 196, 24, "other");
      return dart.test(other) && this;
    }
    [$bitOr](other) {
      if (other == null) dart.nullFailed(I[183], 202, 24, "other");
      return dart.test(other) || this;
    }
    [$bitXor](other) {
      if (other == null) dart.nullFailed(I[183], 208, 24, "other");
      return !dart.test(other) === this;
    }
    [$toString]() {
      return this ? "true" : "false";
    }
  };
  (core.bool[dart.mixinNew] = function() {
  }).prototype = core.bool.prototype;
  dart.addRtiResources(core.bool, ["core|bool"]);
  dart.setMethodSignature(core.bool, () => dart.global.Object.setPrototypeOf({
    [$bitAnd]: T$.boolTobool(),
    [$bitOr]: T$.boolTobool(),
    [$bitXor]: T$.boolTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core.bool))));
  dart.setStaticMethodSignature(core.bool, () => ['fromEnvironment', 'hasEnvironment', 'parse', 'tryParse']);
  dart.setLibraryUri(core.bool, I[11]);
  core.Comparable$ = dart.generic(T => {
    var __t$ComparableOfT = () => (__t$ComparableOfT = dart.constFn(T[_eval]("core|Comparable<0>")))();
    class Comparable extends core.Object {
      static compare(a, b) {
        if (a == null) dart.nullFailed(I[184], 88, 33, "a");
        if (b == null) dart.nullFailed(I[184], 88, 47, "b");
        return a[$compareTo](b);
      }
    }
    (Comparable.new = function() {
      this.$ti = this.$ti || __t$ComparableOfT();
      ;
    }).prototype = Comparable.prototype;
    dart.addRtiResources(Comparable, ["core|Comparable"]);
    dart.setStaticMethodSignature(Comparable, () => ['compare']);
    dart.setLibraryUri(Comparable, I[11]);
    return Comparable;
  });
  core.Comparable = core.Comparable$();
  var isUtc$ = dart.privateName(core, "DateTime.isUtc");
  var _value$3 = dart.privateName(core, "_value");
  var _microsecond$ = dart.privateName(core, "_microsecond");
  var _addMicroseconds = dart.privateName(core, "_addMicroseconds");
  var _withUtc = dart.privateName(core, "_withUtc");
  core.DateTime = class DateTime extends core.Object {
    get isUtc() {
      return this[isUtc$];
    }
    set isUtc(value) {
      super.isUtc = value;
    }
    static ['_#_#tearOff'](_value, _microsecond, opts) {
      if (_value == null) dart.nullFailed(I[185], 19, 19, "_value");
      if (_microsecond == null) dart.nullFailed(I[185], 19, 32, "_microsecond");
      let isUtc = opts && 'isUtc' in opts ? opts.isUtc : null;
      if (isUtc == null) dart.nullFailed(I[185], 19, 61, "isUtc");
      return new core.DateTime.__(_value, _microsecond, {isUtc: isUtc});
    }
    static ['_#_withValueChecked#tearOff'](millisecondsSinceEpoch, microsecond, opts) {
      if (millisecondsSinceEpoch == null) dart.nullFailed(I[185], 24, 34, "millisecondsSinceEpoch");
      if (microsecond == null) dart.nullFailed(I[185], 24, 62, "microsecond");
      let isUtc = opts && 'isUtc' in opts ? opts.isUtc : null;
      if (isUtc == null) dart.nullFailed(I[185], 25, 22, "isUtc");
      return new core.DateTime._withValueChecked(millisecondsSinceEpoch, microsecond, {isUtc: isUtc});
    }
    [_addMicroseconds](durationMicroseconds) {
      if (durationMicroseconds == null) dart.nullFailed(I[185], 110, 33, "durationMicroseconds");
      let durationLo = durationMicroseconds[$modulo](1000);
      let durationHi = ((dart.notNull(durationMicroseconds) - durationLo) / 1000)[$truncate]();
      let sumLo = dart.notNull(this[_microsecond$]) + durationLo;
      let microsecond = sumLo[$modulo](1000);
      let carry = ((sumLo - microsecond) / 1000)[$truncate]();
      let milliseconds = dart.notNull(this[_value$3]) + carry + durationHi;
      return new core.DateTime._withValueChecked(milliseconds, microsecond, {isUtc: this.isUtc});
    }
    static ['_#new#tearOff'](year, month = 1, day = 1, hour = 0, minute = 0, second = 0, millisecond = 0, microsecond = 0) {
      if (year == null) dart.nullFailed(I[186], 182, 16, "year");
      if (month == null) dart.nullFailed(I[186], 183, 12, "month");
      if (day == null) dart.nullFailed(I[186], 184, 11, "day");
      if (hour == null) dart.nullFailed(I[186], 185, 11, "hour");
      if (minute == null) dart.nullFailed(I[186], 186, 11, "minute");
      if (second == null) dart.nullFailed(I[186], 187, 11, "second");
      if (millisecond == null) dart.nullFailed(I[186], 188, 11, "millisecond");
      if (microsecond == null) dart.nullFailed(I[186], 189, 11, "microsecond");
      return new core.DateTime.new(year, month, day, hour, minute, second, millisecond, microsecond);
    }
    static ['_#utc#tearOff'](year, month = 1, day = 1, hour = 0, minute = 0, second = 0, millisecond = 0, microsecond = 0) {
      if (year == null) dart.nullFailed(I[186], 202, 20, "year");
      if (month == null) dart.nullFailed(I[186], 203, 12, "month");
      if (day == null) dart.nullFailed(I[186], 204, 11, "day");
      if (hour == null) dart.nullFailed(I[186], 205, 11, "hour");
      if (minute == null) dart.nullFailed(I[186], 206, 11, "minute");
      if (second == null) dart.nullFailed(I[186], 207, 11, "second");
      if (millisecond == null) dart.nullFailed(I[186], 208, 11, "millisecond");
      if (microsecond == null) dart.nullFailed(I[186], 209, 11, "microsecond");
      return new core.DateTime.utc(year, month, day, hour, minute, second, millisecond, microsecond);
    }
    static ['_#now#tearOff']() {
      return new core.DateTime.now();
    }
    static ['_#timestamp#tearOff']() {
      return new core.DateTime.timestamp();
    }
    static ['_#_nowUtc#tearOff']() {
      return new core.DateTime._nowUtc();
    }
    static parse(formattedString) {
      if (formattedString == null) dart.nullFailed(I[186], 293, 32, "formattedString");
      let re = core.DateTime._parseFormat;
      let match = re.firstMatch(formattedString);
      if (match != null) {
        function parseIntOrZero(matched) {
          if (matched == null) return 0;
          return core.int.parse(matched);
        }
        dart.fn(parseIntOrZero, T$8.StringNToint());
        function parseMilliAndMicroseconds(matched) {
          if (matched == null) return 0;
          let length = matched.length;
          if (!(length >= 1)) dart.assertFailed(null, I[186], 308, 16, "length >= 1");
          let result = 0;
          for (let i = 0; i < 6; i = i + 1) {
            result = result * 10;
            if (i < matched.length) {
              result = result + ((matched[$codeUnitAt](i) ^ 48) >>> 0);
            }
          }
          return result;
        }
        dart.fn(parseMilliAndMicroseconds, T$8.StringNToint());
        let years = core.int.parse(dart.nullCheck(match._get(1)));
        let month = core.int.parse(dart.nullCheck(match._get(2)));
        let day = core.int.parse(dart.nullCheck(match._get(3)));
        let hour = parseIntOrZero(match._get(4));
        let minute = parseIntOrZero(match._get(5));
        let second = parseIntOrZero(match._get(6));
        let milliAndMicroseconds = parseMilliAndMicroseconds(match._get(7));
        let millisecond = (dart.notNull(milliAndMicroseconds) / 1000)[$truncate]();
        let microsecond = milliAndMicroseconds[$remainder](1000);
        let isUtc = false;
        if (match._get(8) != null) {
          isUtc = true;
          let tzSign = match._get(9);
          if (tzSign != null) {
            let sign = tzSign === "-" ? -1 : 1;
            let hourDifference = core.int.parse(dart.nullCheck(match._get(10)));
            let minuteDifference = parseIntOrZero(match._get(11));
            minuteDifference = dart.notNull(minuteDifference) + 60 * dart.notNull(hourDifference);
            minute = dart.notNull(minute) - sign * dart.notNull(minuteDifference);
          }
        }
        let result = core.DateTime._finishParse(years, month, day, hour, minute, second, millisecond, microsecond, isUtc);
        if (result == null) {
          dart.throw(new core.FormatException.new("Time out of range", formattedString));
        }
        return result;
      } else {
        dart.throw(new core.FormatException.new("Invalid date format", formattedString));
      }
    }
    static tryParse(formattedString) {
      if (formattedString == null) dart.nullFailed(I[186], 359, 36, "formattedString");
      try {
        return core.DateTime.parse(formattedString);
      } catch (t$36$35e) {
        let t$36$35ex = dart.getThrown(t$36$35e);
        if (T$8.FormatException()[_is](t$36$35ex)) {
          return null;
        } else
          throw t$36$35e;
      }
    }
    static ['_#fromMillisecondsSinceEpoch#tearOff'](millisecondsSinceEpoch, opts) {
      if (millisecondsSinceEpoch == null) dart.nullFailed(I[185], 31, 43, "millisecondsSinceEpoch");
      let isUtc = opts && 'isUtc' in opts ? opts.isUtc : false;
      if (isUtc == null) dart.nullFailed(I[185], 32, 13, "isUtc");
      return new core.DateTime.fromMillisecondsSinceEpoch(millisecondsSinceEpoch, {isUtc: isUtc});
    }
    static ['_#fromMicrosecondsSinceEpoch#tearOff'](microsecondsSinceEpoch, opts) {
      if (microsecondsSinceEpoch == null) dart.nullFailed(I[185], 36, 43, "microsecondsSinceEpoch");
      let isUtc = opts && 'isUtc' in opts ? opts.isUtc : false;
      if (isUtc == null) dart.nullFailed(I[185], 37, 13, "isUtc");
      return new core.DateTime.fromMicrosecondsSinceEpoch(microsecondsSinceEpoch, {isUtc: isUtc});
    }
    static _validate(millisecondsSinceEpoch, microsecond, isUtc) {
      if (millisecondsSinceEpoch == null) dart.nullFailed(I[186], 409, 11, "millisecondsSinceEpoch");
      if (microsecond == null) dart.nullFailed(I[186], 409, 39, "microsecond");
      if (isUtc == null) dart.nullFailed(I[186], 409, 57, "isUtc");
      if (dart.notNull(microsecond) < 0 || dart.notNull(microsecond) > 999) {
        dart.throw(new core.RangeError.range(microsecond, 0, 999, "microsecond"));
      }
      if (dart.notNull(millisecondsSinceEpoch) < -8640000000000000.0 || dart.notNull(millisecondsSinceEpoch) > 8640000000000000.0) {
        dart.throw(new core.RangeError.range(millisecondsSinceEpoch, -8640000000000000.0, 8640000000000000.0, "millisecondsSinceEpoch"));
      }
      if (millisecondsSinceEpoch === 8640000000000000.0 && microsecond !== 0) {
        dart.throw(new core.ArgumentError.value(microsecond, "microsecond", "Time including microseconds is outside valid range"));
      }
      _internal.checkNotNullable(T$.bool(), isUtc, "isUtc");
      return millisecondsSinceEpoch;
    }
    _equals(other) {
      if (other == null) return false;
      return T$2.DateTime()[_is](other) && this.millisecondsSinceEpoch == other.millisecondsSinceEpoch && this.microsecond == other.microsecond && this.isUtc == other.isUtc;
    }
    get hashCode() {
      return core.Object.hash(this[_value$3], this[_microsecond$]);
    }
    isBefore(other) {
      if (other == null) dart.nullFailed(I[185], 173, 26, "other");
      return dart.notNull(this.millisecondsSinceEpoch) < dart.notNull(other.millisecondsSinceEpoch) || this.millisecondsSinceEpoch == other.millisecondsSinceEpoch && dart.notNull(this.microsecond) < dart.notNull(other.microsecond);
    }
    isAfter(other) {
      if (other == null) dart.nullFailed(I[185], 179, 25, "other");
      return dart.notNull(this.millisecondsSinceEpoch) > dart.notNull(other.millisecondsSinceEpoch) || this.millisecondsSinceEpoch == other.millisecondsSinceEpoch && dart.notNull(this.microsecond) > dart.notNull(other.microsecond);
    }
    isAtSameMomentAs(other) {
      if (other == null) dart.nullFailed(I[185], 185, 34, "other");
      return this.millisecondsSinceEpoch == other.millisecondsSinceEpoch && this.microsecond == other.microsecond;
    }
    compareTo(other) {
      if (other == null) dart.nullFailed(I[185], 190, 26, "other");
      let r = this.millisecondsSinceEpoch[$compareTo](other.millisecondsSinceEpoch);
      if (r !== 0) return r;
      return this.microsecond[$compareTo](other.microsecond);
    }
    toLocal() {
      if (dart.test(this.isUtc)) {
        return this[_withUtc]({isUtc: false});
      }
      return this;
    }
    toUtc() {
      if (dart.test(this.isUtc)) return this;
      return this[_withUtc]({isUtc: true});
    }
    [_withUtc](opts) {
      let isUtc = opts && 'isUtc' in opts ? opts.isUtc : null;
      if (isUtc == null) dart.nullFailed(I[185], 78, 36, "isUtc");
      return new core.DateTime.__(this[_value$3], this[_microsecond$], {isUtc: isUtc});
    }
    static _fourDigits(n) {
      if (n == null) dart.nullFailed(I[186], 563, 33, "n");
      let absN = n[$abs]();
      let sign = dart.notNull(n) < 0 ? "-" : "";
      if (absN >= 1000) return dart.str(n);
      if (absN >= 100) return sign + "0" + dart.strSafe(absN);
      if (absN >= 10) return sign + "00" + dart.strSafe(absN);
      return sign + "000" + dart.strSafe(absN);
    }
    static _sixDigits(n) {
      if (n == null) dart.nullFailed(I[186], 572, 32, "n");
      if (!(dart.notNull(n) < -9999 || dart.notNull(n) > 9999)) dart.assertFailed(null, I[186], 573, 12, "n < -9999 || n > 9999");
      let absN = n[$abs]();
      let sign = dart.notNull(n) < 0 ? "-" : "+";
      if (absN >= 100000) return sign + dart.strSafe(absN);
      return sign + "0" + dart.strSafe(absN);
    }
    static _threeDigits(n) {
      if (n == null) dart.nullFailed(I[186], 580, 34, "n");
      if (dart.notNull(n) >= 100) return dart.str(n);
      if (dart.notNull(n) >= 10) return "0" + dart.str(n);
      return "00" + dart.str(n);
    }
    static _twoDigits(n) {
      if (n == null) dart.nullFailed(I[186], 586, 32, "n");
      if (dart.notNull(n) >= 10) return dart.str(n);
      return "0" + dart.str(n);
    }
    toString() {
      let y = core.DateTime._fourDigits(this.year);
      let m = core.DateTime._twoDigits(this.month);
      let d = core.DateTime._twoDigits(this.day);
      let h = core.DateTime._twoDigits(this.hour);
      let min = core.DateTime._twoDigits(this.minute);
      let sec = core.DateTime._twoDigits(this.second);
      let ms = core.DateTime._threeDigits(this.millisecond);
      let us = this.microsecond === 0 ? "" : core.DateTime._threeDigits(this.microsecond);
      if (dart.test(this.isUtc)) {
        return dart.str(y) + "-" + dart.str(m) + "-" + dart.str(d) + " " + dart.str(h) + ":" + dart.str(min) + ":" + dart.str(sec) + "." + dart.str(ms) + dart.str(us) + "Z";
      } else {
        return dart.str(y) + "-" + dart.str(m) + "-" + dart.str(d) + " " + dart.str(h) + ":" + dart.str(min) + ":" + dart.str(sec) + "." + dart.str(ms) + dart.str(us);
      }
    }
    toIso8601String() {
      let y = dart.notNull(this.year) >= -9999 && dart.notNull(this.year) <= 9999 ? core.DateTime._fourDigits(this.year) : core.DateTime._sixDigits(this.year);
      let m = core.DateTime._twoDigits(this.month);
      let d = core.DateTime._twoDigits(this.day);
      let h = core.DateTime._twoDigits(this.hour);
      let min = core.DateTime._twoDigits(this.minute);
      let sec = core.DateTime._twoDigits(this.second);
      let ms = core.DateTime._threeDigits(this.millisecond);
      let us = this.microsecond === 0 ? "" : core.DateTime._threeDigits(this.microsecond);
      if (dart.test(this.isUtc)) {
        return dart.str(y) + "-" + dart.str(m) + "-" + dart.str(d) + "T" + dart.str(h) + ":" + dart.str(min) + ":" + dart.str(sec) + "." + dart.str(ms) + dart.str(us) + "Z";
      } else {
        return dart.str(y) + "-" + dart.str(m) + "-" + dart.str(d) + "T" + dart.str(h) + ":" + dart.str(min) + ":" + dart.str(sec) + "." + dart.str(ms) + dart.str(us);
      }
    }
    add(duration) {
      if (duration == null) dart.nullFailed(I[185], 104, 25, "duration");
      return this[_addMicroseconds](duration.inMicroseconds);
    }
    subtract(duration) {
      if (duration == null) dart.nullFailed(I[185], 107, 30, "duration");
      return this[_addMicroseconds](0 - dart.notNull(duration.inMicroseconds));
    }
    difference(other) {
      if (other == null) dart.nullFailed(I[185], 121, 32, "other");
      let deltaMilliseconds = dart.notNull(this.millisecondsSinceEpoch) - dart.notNull(other.millisecondsSinceEpoch);
      let deltaMicroseconds = dart.notNull(this.microsecond) - dart.notNull(other.microsecond);
      return new core.Duration.new({milliseconds: deltaMilliseconds, microseconds: deltaMicroseconds});
    }
    static ['_#_internal#tearOff'](year, month, day, hour, minute, second, millisecond, microsecond, isUtc) {
      if (year == null) dart.nullFailed(I[185], 44, 26, "year");
      if (month == null) dart.nullFailed(I[185], 44, 36, "month");
      if (day == null) dart.nullFailed(I[185], 44, 47, "day");
      if (hour == null) dart.nullFailed(I[185], 44, 56, "hour");
      if (minute == null) dart.nullFailed(I[185], 44, 66, "minute");
      if (second == null) dart.nullFailed(I[185], 45, 11, "second");
      if (millisecond == null) dart.nullFailed(I[185], 45, 23, "millisecond");
      if (microsecond == null) dart.nullFailed(I[185], 45, 40, "microsecond");
      if (isUtc == null) dart.nullFailed(I[185], 45, 58, "isUtc");
      return new core.DateTime._internal(year, month, day, hour, minute, second, millisecond, microsecond, isUtc);
    }
    static ['_#_now#tearOff']() {
      return new core.DateTime._now();
    }
    static _finishParse(year, month, day, hour, minute, second, millisecond, microsecond, isUtc) {
      if (year == null) dart.nullFailed(I[185], 83, 37, "year");
      if (month == null) dart.nullFailed(I[185], 83, 47, "month");
      if (day == null) dart.nullFailed(I[185], 83, 58, "day");
      if (hour == null) dart.nullFailed(I[185], 83, 67, "hour");
      if (minute == null) dart.nullFailed(I[185], 84, 11, "minute");
      if (second == null) dart.nullFailed(I[185], 84, 23, "second");
      if (millisecond == null) dart.nullFailed(I[185], 84, 35, "millisecond");
      if (microsecond == null) dart.nullFailed(I[185], 84, 52, "microsecond");
      if (isUtc == null) dart.nullFailed(I[185], 84, 70, "isUtc");
      let value = _js_helper.Primitives.valueFromDecomposedDate(year, month, day, hour, minute, second, millisecond, microsecond, isUtc);
      if (value == null) return null;
      return new core.DateTime._withValueChecked(value, microsecond, {isUtc: isUtc});
    }
    get millisecondsSinceEpoch() {
      return this[_value$3];
    }
    get microsecondsSinceEpoch() {
      return 1000 * dart.notNull(this[_value$3]) + dart.notNull(this[_microsecond$]);
    }
    get timeZoneName() {
      if (dart.test(this.isUtc)) return "UTC";
      return _js_helper.Primitives.getTimeZoneName(this);
    }
    get timeZoneOffset() {
      if (dart.test(this.isUtc)) return core.Duration.zero;
      return new core.Duration.new({minutes: _js_helper.Primitives.getTimeZoneOffsetInMinutes(this)});
    }
    get year() {
      return _js_helper.Primitives.getYear(this);
    }
    get month() {
      return _js_helper.Primitives.getMonth(this);
    }
    get day() {
      return _js_helper.Primitives.getDay(this);
    }
    get hour() {
      return _js_helper.Primitives.getHours(this);
    }
    get minute() {
      return _js_helper.Primitives.getMinutes(this);
    }
    get second() {
      return _js_helper.Primitives.getSeconds(this);
    }
    get millisecond() {
      return _js_helper.Primitives.getMilliseconds(this);
    }
    get microsecond() {
      return this[_microsecond$];
    }
    get weekday() {
      return _js_helper.Primitives.getWeekday(this);
    }
  };
  (core.DateTime.__ = function(_value, _microsecond, opts) {
    if (_value == null) dart.nullFailed(I[185], 19, 19, "_value");
    if (_microsecond == null) dart.nullFailed(I[185], 19, 32, "_microsecond");
    let isUtc = opts && 'isUtc' in opts ? opts.isUtc : null;
    if (isUtc == null) dart.nullFailed(I[185], 19, 61, "isUtc");
    this[_value$3] = _value;
    this[_microsecond$] = _microsecond;
    this[isUtc$] = isUtc;
    ;
  }).prototype = core.DateTime.prototype;
  (core.DateTime._withValueChecked = function(millisecondsSinceEpoch, microsecond, opts) {
    if (millisecondsSinceEpoch == null) dart.nullFailed(I[185], 24, 34, "millisecondsSinceEpoch");
    if (microsecond == null) dart.nullFailed(I[185], 24, 62, "microsecond");
    let isUtc = opts && 'isUtc' in opts ? opts.isUtc : null;
    if (isUtc == null) dart.nullFailed(I[185], 25, 22, "isUtc");
    this[_value$3] = core.DateTime._validate(millisecondsSinceEpoch, microsecond, isUtc);
    this[_microsecond$] = microsecond;
    this[isUtc$] = isUtc;
    ;
  }).prototype = core.DateTime.prototype;
  (core.DateTime.new = function(year, month = 1, day = 1, hour = 0, minute = 0, second = 0, millisecond = 0, microsecond = 0) {
    if (year == null) dart.nullFailed(I[186], 182, 16, "year");
    if (month == null) dart.nullFailed(I[186], 183, 12, "month");
    if (day == null) dart.nullFailed(I[186], 184, 11, "day");
    if (hour == null) dart.nullFailed(I[186], 185, 11, "hour");
    if (minute == null) dart.nullFailed(I[186], 186, 11, "minute");
    if (second == null) dart.nullFailed(I[186], 187, 11, "second");
    if (millisecond == null) dart.nullFailed(I[186], 188, 11, "millisecond");
    if (microsecond == null) dart.nullFailed(I[186], 189, 11, "microsecond");
    core.DateTime._internal.call(this, year, month, day, hour, minute, second, millisecond, microsecond, false);
  }).prototype = core.DateTime.prototype;
  (core.DateTime.utc = function(year, month = 1, day = 1, hour = 0, minute = 0, second = 0, millisecond = 0, microsecond = 0) {
    if (year == null) dart.nullFailed(I[186], 202, 20, "year");
    if (month == null) dart.nullFailed(I[186], 203, 12, "month");
    if (day == null) dart.nullFailed(I[186], 204, 11, "day");
    if (hour == null) dart.nullFailed(I[186], 205, 11, "hour");
    if (minute == null) dart.nullFailed(I[186], 206, 11, "minute");
    if (second == null) dart.nullFailed(I[186], 207, 11, "second");
    if (millisecond == null) dart.nullFailed(I[186], 208, 11, "millisecond");
    if (microsecond == null) dart.nullFailed(I[186], 209, 11, "microsecond");
    core.DateTime._internal.call(this, year, month, day, hour, minute, second, millisecond, microsecond, true);
  }).prototype = core.DateTime.prototype;
  (core.DateTime.now = function() {
    core.DateTime._now.call(this);
  }).prototype = core.DateTime.prototype;
  (core.DateTime.timestamp = function() {
    core.DateTime._nowUtc.call(this);
  }).prototype = core.DateTime.prototype;
  (core.DateTime._nowUtc = function() {
    this[isUtc$] = true;
    this[_value$3] = _js_helper.Primitives.dateNow();
    this[_microsecond$] = 0;
    ;
  }).prototype = core.DateTime.prototype;
  (core.DateTime.fromMillisecondsSinceEpoch = function(millisecondsSinceEpoch, opts) {
    if (millisecondsSinceEpoch == null) dart.nullFailed(I[185], 31, 43, "millisecondsSinceEpoch");
    let isUtc = opts && 'isUtc' in opts ? opts.isUtc : false;
    if (isUtc == null) dart.nullFailed(I[185], 32, 13, "isUtc");
    core.DateTime._withValueChecked.call(this, millisecondsSinceEpoch, 0, {isUtc: isUtc});
  }).prototype = core.DateTime.prototype;
  (core.DateTime.fromMicrosecondsSinceEpoch = function(microsecondsSinceEpoch, opts) {
    if (microsecondsSinceEpoch == null) dart.nullFailed(I[185], 36, 43, "microsecondsSinceEpoch");
    let isUtc = opts && 'isUtc' in opts ? opts.isUtc : false;
    if (isUtc == null) dart.nullFailed(I[185], 37, 13, "isUtc");
    core.DateTime._withValueChecked.call(this, ((dart.notNull(microsecondsSinceEpoch) - microsecondsSinceEpoch[$modulo](1000)) / 1000)[$truncate](), microsecondsSinceEpoch[$modulo](1000), {isUtc: isUtc});
  }).prototype = core.DateTime.prototype;
  (core.DateTime._internal = function(year, month, day, hour, minute, second, millisecond, microsecond, isUtc) {
    let t$36378;
    if (year == null) dart.nullFailed(I[185], 44, 26, "year");
    if (month == null) dart.nullFailed(I[185], 44, 36, "month");
    if (day == null) dart.nullFailed(I[185], 44, 47, "day");
    if (hour == null) dart.nullFailed(I[185], 44, 56, "hour");
    if (minute == null) dart.nullFailed(I[185], 44, 66, "minute");
    if (second == null) dart.nullFailed(I[185], 45, 11, "second");
    if (millisecond == null) dart.nullFailed(I[185], 45, 23, "millisecond");
    if (microsecond == null) dart.nullFailed(I[185], 45, 40, "microsecond");
    if (isUtc == null) dart.nullFailed(I[185], 45, 58, "isUtc");
    this[isUtc$] = typeof isUtc == 'boolean' ? isUtc : dart.throw(new core.ArgumentError.value(isUtc, "isUtc"));
    this[_value$3] = (t$36378 = _js_helper.Primitives.valueFromDecomposedDate(year, month, day, hour, minute, second, millisecond, microsecond, isUtc), t$36378 == null ? 86400000000000000.0 : t$36378);
    this[_microsecond$] = microsecond[$modulo](1000);
    if (this[_value$3] === 86400000000000000.0) {
      dart.throw(new core.ArgumentError.new("(" + dart.str(year) + ", " + dart.str(month) + ", " + dart.str(day) + "," + " " + dart.str(hour) + ", " + dart.str(minute) + ", " + dart.str(second) + ", " + dart.str(millisecond) + ", " + dart.str(microsecond) + ")"));
    }
  }).prototype = core.DateTime.prototype;
  (core.DateTime._now = function() {
    this[isUtc$] = false;
    this[_value$3] = _js_helper.Primitives.dateNow();
    this[_microsecond$] = 0;
    ;
  }).prototype = core.DateTime.prototype;
  dart.addRtiResources(core.DateTime, ["core|DateTime", "core|Comparable"]);
  dart.setMethodSignature(core.DateTime, () => dart.global.Object.setPrototypeOf({
    [_addMicroseconds]: T$8.intToDateTime(),
    isBefore: T$8.DateTimeTobool(),
    isAfter: T$8.DateTimeTobool(),
    isAtSameMomentAs: T$8.DateTimeTobool(),
    compareTo: T$0.DateTimeToint(),
    [$compareTo]: T$0.DateTimeToint(),
    toLocal: T$2.VoidToDateTime(),
    toUtc: T$2.VoidToDateTime(),
    [_withUtc]: T$8.__ToDateTime(),
    toIso8601String: T$.VoidToString(),
    add: T$8.DurationToDateTime(),
    subtract: T$8.DurationToDateTime(),
    difference: T$8.DateTimeToDuration()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core.DateTime))));
  dart.setStaticMethodSignature(core.DateTime, () => ['parse', 'tryParse', '_validate', '_fourDigits', '_sixDigits', '_threeDigits', '_twoDigits', '_finishParse']);
  dart.setGetterSignature(core.DateTime, () => dart.global.Object.setPrototypeOf({
    millisecondsSinceEpoch: T$.int(),
    microsecondsSinceEpoch: T$.int(),
    timeZoneName: T$.String(),
    timeZoneOffset: T$8.Duration(),
    year: T$.int(),
    month: T$.int(),
    day: T$.int(),
    hour: T$.int(),
    minute: T$.int(),
    second: T$.int(),
    millisecond: T$.int(),
    microsecond: T$.int(),
    weekday: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.DateTime))));
  dart.setLibraryUri(core.DateTime, I[11]);
  dart.setFieldSignature(core.DateTime, () => dart.global.Object.setPrototypeOf({
    [_value$3]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_microsecond$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    isUtc: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.DateTime))));
  dart.setStaticFieldSignature(core.DateTime, () => ['_sentinel', '_sentinelConstraint', '_sentinelAssertion', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday', 'sunday', 'daysPerWeek', 'january', 'february', 'march', 'april', 'may', 'june', 'july', 'august', 'september', 'october', 'november', 'december', 'monthsPerYear', '_maxMillisecondsSinceEpoch', '_maxMicrosecondsSinceEpoch', '_parseFormat']);
  dart.defineExtensionMethods(core.DateTime, ['_equals', 'compareTo', 'toString']);
  dart.defineExtensionAccessors(core.DateTime, ['hashCode']);
  dart.defineLazy(core.DateTime, {
    /*core.DateTime._sentinel*/get _sentinel() {
      return 86400000000000000.0;
    },
    /*core.DateTime._sentinelConstraint*/get _sentinelConstraint() {
      return true;
    },
    /*core.DateTime._sentinelAssertion*/get _sentinelAssertion() {
      return 1;
    },
    /*core.DateTime.monday*/get monday() {
      return 1;
    },
    /*core.DateTime.tuesday*/get tuesday() {
      return 2;
    },
    /*core.DateTime.wednesday*/get wednesday() {
      return 3;
    },
    /*core.DateTime.thursday*/get thursday() {
      return 4;
    },
    /*core.DateTime.friday*/get friday() {
      return 5;
    },
    /*core.DateTime.saturday*/get saturday() {
      return 6;
    },
    /*core.DateTime.sunday*/get sunday() {
      return 7;
    },
    /*core.DateTime.daysPerWeek*/get daysPerWeek() {
      return 7;
    },
    /*core.DateTime.january*/get january() {
      return 1;
    },
    /*core.DateTime.february*/get february() {
      return 2;
    },
    /*core.DateTime.march*/get march() {
      return 3;
    },
    /*core.DateTime.april*/get april() {
      return 4;
    },
    /*core.DateTime.may*/get may() {
      return 5;
    },
    /*core.DateTime.june*/get june() {
      return 6;
    },
    /*core.DateTime.july*/get july() {
      return 7;
    },
    /*core.DateTime.august*/get august() {
      return 8;
    },
    /*core.DateTime.september*/get september() {
      return 9;
    },
    /*core.DateTime.october*/get october() {
      return 10;
    },
    /*core.DateTime.november*/get november() {
      return 11;
    },
    /*core.DateTime.december*/get december() {
      return 12;
    },
    /*core.DateTime.monthsPerYear*/get monthsPerYear() {
      return 12;
    },
    /*core.DateTime._maxMillisecondsSinceEpoch*/get _maxMillisecondsSinceEpoch() {
      return 8640000000000000.0;
    },
    /*core.DateTime._maxMicrosecondsSinceEpoch*/get _maxMicrosecondsSinceEpoch() {
      return 8640000000000000000.0;
    },
    /*core.DateTime._parseFormat*/get _parseFormat() {
      return core.RegExp.new("^([+-]?\\d{4,6})-?(\\d\\d)-?(\\d\\d)(?:[ T](\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:[.,](\\d+))?)?)?( ?[zZ]| ?([-+])(\\d\\d)(?::?(\\d\\d))?)?)?$");
    }
  }, false);
  core.num = class num extends core.Object {
    static parse(input, onError = null) {
      if (input == null) dart.nullFailed(I[187], 571, 27, "input");
      let result = core.num.tryParse(input);
      if (result != null) return result;
      dart.throw(new core.FormatException.new(input));
    }
    static tryParse(input) {
      let t$36380;
      if (input == null) dart.nullFailed(I[187], 597, 31, "input");
      let source = input[$trim]();
      t$36380 = core.int.tryParse(source);
      return t$36380 == null ? core.double.tryParse(source) : t$36380;
    }
  };
  (core.num.new = function() {
    ;
  }).prototype = core.num.prototype;
  dart.addRtiResources(core.num, ["core|num", "core|Comparable"]);
  dart.setStaticMethodSignature(core.num, () => ['parse', 'tryParse']);
  dart.setLibraryUri(core.num, I[11]);
  core.double = class double extends core.num {
    static parse(source, onError = null) {
      if (source == null) dart.nullFailed(I[9], 234, 30, "source");
      let value = core.double.tryParse(source);
      if (value != null) return value;
      if (onError != null) return onError(source);
      dart.throw(new core.FormatException.new("Invalid double", source));
    }
    static tryParse(source) {
      if (source == null) dart.nullFailed(I[9], 243, 34, "source");
      return _js_helper.Primitives.parseDouble(source);
    }
  };
  (core.double.new = function() {
    ;
  }).prototype = core.double.prototype;
  dart.addRtiResources(core.double, ["core|double"]);
  dart.setStaticMethodSignature(core.double, () => ['parse', 'tryParse']);
  dart.setLibraryUri(core.double, I[11]);
  dart.setStaticFieldSignature(core.double, () => ['nan', 'infinity', 'negativeInfinity', 'minPositive', 'maxFinite']);
  dart.defineLazy(core.double, {
    /*core.double.nan*/get nan() {
      return 0 / 0;
    },
    /*core.double.infinity*/get infinity() {
      return 1 / 0;
    },
    /*core.double.negativeInfinity*/get negativeInfinity() {
      return -1 / 0;
    },
    /*core.double.minPositive*/get minPositive() {
      return 5e-324;
    },
    /*core.double.maxFinite*/get maxFinite() {
      return 1.7976931348623157e+308;
    }
  }, false);
  var _duration = dart.privateName(core, "Duration._duration");
  var _duration$ = dart.privateName(core, "_duration");
  core.Duration = class Duration extends core.Object {
    get [_duration$]() {
      return this[_duration];
    }
    set [_duration$](value) {
      super[_duration$] = value;
    }
    static ['_#new#tearOff'](opts) {
      let days = opts && 'days' in opts ? opts.days : 0;
      if (days == null) dart.nullFailed(I[188], 175, 12, "days");
      let hours = opts && 'hours' in opts ? opts.hours : 0;
      if (hours == null) dart.nullFailed(I[188], 176, 11, "hours");
      let minutes = opts && 'minutes' in opts ? opts.minutes : 0;
      if (minutes == null) dart.nullFailed(I[188], 177, 11, "minutes");
      let seconds = opts && 'seconds' in opts ? opts.seconds : 0;
      if (seconds == null) dart.nullFailed(I[188], 178, 11, "seconds");
      let milliseconds = opts && 'milliseconds' in opts ? opts.milliseconds : 0;
      if (milliseconds == null) dart.nullFailed(I[188], 179, 11, "milliseconds");
      let microseconds = opts && 'microseconds' in opts ? opts.microseconds : 0;
      if (microseconds == null) dart.nullFailed(I[188], 180, 11, "microseconds");
      return new core.Duration.new({days: days, hours: hours, minutes: minutes, seconds: seconds, milliseconds: milliseconds, microseconds: microseconds});
    }
    static ['_#_microseconds#tearOff'](duration) {
      if (duration == null) dart.nullFailed(I[188], 191, 36, "duration");
      return new core.Duration._microseconds(duration);
    }
    ['+'](other) {
      if (other == null) dart.nullFailed(I[188], 195, 32, "other");
      return new core.Duration._microseconds(dart.notNull(this[_duration$]) + dart.notNull(other[_duration$]));
    }
    ['-'](other) {
      if (other == null) dart.nullFailed(I[188], 201, 32, "other");
      return new core.Duration._microseconds(dart.notNull(this[_duration$]) - dart.notNull(other[_duration$]));
    }
    ['*'](factor) {
      if (factor == null) dart.nullFailed(I[188], 210, 27, "factor");
      return new core.Duration._microseconds((dart.notNull(this[_duration$]) * dart.notNull(factor))[$round]());
    }
    ['~/'](quotient) {
      if (quotient == null) dart.nullFailed(I[188], 218, 28, "quotient");
      if (quotient === 0) dart.throw(new core.IntegerDivisionByZeroException.new());
      return new core.Duration._microseconds((dart.notNull(this[_duration$]) / dart.notNull(quotient))[$truncate]());
    }
    ['<'](other) {
      if (other == null) dart.nullFailed(I[188], 226, 28, "other");
      return dart.notNull(this[_duration$]) < dart.notNull(other[_duration$]);
    }
    ['>'](other) {
      if (other == null) dart.nullFailed(I[188], 229, 28, "other");
      return dart.notNull(this[_duration$]) > dart.notNull(other[_duration$]);
    }
    ['<='](other) {
      if (other == null) dart.nullFailed(I[188], 232, 29, "other");
      return dart.notNull(this[_duration$]) <= dart.notNull(other[_duration$]);
    }
    ['>='](other) {
      if (other == null) dart.nullFailed(I[188], 235, 29, "other");
      return dart.notNull(this[_duration$]) >= dart.notNull(other[_duration$]);
    }
    get inDays() {
      return (dart.notNull(this[_duration$]) / 86400000000.0)[$truncate]();
    }
    get inHours() {
      return (dart.notNull(this[_duration$]) / 3600000000.0)[$truncate]();
    }
    get inMinutes() {
      return (dart.notNull(this[_duration$]) / 60000000)[$truncate]();
    }
    get inSeconds() {
      return (dart.notNull(this[_duration$]) / 1000000)[$truncate]();
    }
    get inMilliseconds() {
      return (dart.notNull(this[_duration$]) / 1000)[$truncate]();
    }
    get inMicroseconds() {
      return this[_duration$];
    }
    _equals(other) {
      if (other == null) return false;
      return T$8.Duration()[_is](other) && this[_duration$] == other.inMicroseconds;
    }
    get hashCode() {
      return dart.hashCode(this[_duration$]);
    }
    compareTo(other) {
      T$8.Duration()[_as](other);
      if (other == null) dart.nullFailed(I[188], 321, 26, "other");
      return this[_duration$][$compareTo](other[_duration$]);
    }
    toString() {
      let microseconds = this.inMicroseconds;
      let sign = "";
      let negative = dart.notNull(microseconds) < 0;
      let hours = (dart.notNull(microseconds) / 3600000000.0)[$truncate]();
      microseconds = microseconds[$remainder](3600000000.0);
      if (negative) {
        hours = 0 - hours;
        microseconds = 0 - dart.notNull(microseconds);
        sign = "-";
      }
      let minutes = (dart.notNull(microseconds) / 60000000)[$truncate]();
      microseconds = microseconds[$remainder](60000000);
      let minutesPadding = minutes < 10 ? "0" : "";
      let seconds = (dart.notNull(microseconds) / 1000000)[$truncate]();
      microseconds = microseconds[$remainder](1000000);
      let secondsPadding = seconds < 10 ? "0" : "";
      let microsecondsText = dart.toString(microseconds)[$padLeft](6, "0");
      return sign + dart.strSafe(hours) + ":" + minutesPadding + dart.strSafe(minutes) + ":" + secondsPadding + dart.strSafe(seconds) + "." + microsecondsText;
    }
    get isNegative() {
      return dart.notNull(this[_duration$]) < 0;
    }
    abs() {
      return new core.Duration._microseconds(this[_duration$][$abs]());
    }
    _negate() {
      return new core.Duration._microseconds(0 - dart.notNull(this[_duration$]));
    }
  };
  (core.Duration.new = function(opts) {
    let days = opts && 'days' in opts ? opts.days : 0;
    if (days == null) dart.nullFailed(I[188], 175, 12, "days");
    let hours = opts && 'hours' in opts ? opts.hours : 0;
    if (hours == null) dart.nullFailed(I[188], 176, 11, "hours");
    let minutes = opts && 'minutes' in opts ? opts.minutes : 0;
    if (minutes == null) dart.nullFailed(I[188], 177, 11, "minutes");
    let seconds = opts && 'seconds' in opts ? opts.seconds : 0;
    if (seconds == null) dart.nullFailed(I[188], 178, 11, "seconds");
    let milliseconds = opts && 'milliseconds' in opts ? opts.milliseconds : 0;
    if (milliseconds == null) dart.nullFailed(I[188], 179, 11, "milliseconds");
    let microseconds = opts && 'microseconds' in opts ? opts.microseconds : 0;
    if (microseconds == null) dart.nullFailed(I[188], 180, 11, "microseconds");
    core.Duration._microseconds.call(this, dart.notNull(microseconds) + 1000 * dart.notNull(milliseconds) + 1000000 * dart.notNull(seconds) + 60000000 * dart.notNull(minutes) + 3600000000.0 * dart.notNull(hours) + 86400000000.0 * dart.notNull(days));
  }).prototype = core.Duration.prototype;
  (core.Duration._microseconds = function(duration) {
    if (duration == null) dart.nullFailed(I[188], 191, 36, "duration");
    this[_duration] = dart.notNull(duration) + 0;
    ;
  }).prototype = core.Duration.prototype;
  dart.addRtiResources(core.Duration, ["core|Duration", "core|Comparable"]);
  dart.setMethodSignature(core.Duration, () => dart.global.Object.setPrototypeOf({
    '+': T$8.DurationToDuration(),
    '-': T$8.DurationToDuration(),
    '*': T$8.numToDuration(),
    '~/': T$8.intToDuration(),
    '<': T$8.DurationTobool(),
    '>': T$8.DurationTobool(),
    '<=': T$8.DurationTobool(),
    '>=': T$8.DurationTobool(),
    compareTo: T$.ObjectNToint(),
    [$compareTo]: T$.ObjectNToint(),
    abs: T$8.VoidToDuration(),
    _negate: T$8.VoidToDuration()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core.Duration))));
  dart.setGetterSignature(core.Duration, () => dart.global.Object.setPrototypeOf({
    inDays: T$.int(),
    inHours: T$.int(),
    inMinutes: T$.int(),
    inSeconds: T$.int(),
    inMilliseconds: T$.int(),
    inMicroseconds: T$.int(),
    isNegative: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.Duration))));
  dart.setLibraryUri(core.Duration, I[11]);
  dart.setFieldSignature(core.Duration, () => dart.global.Object.setPrototypeOf({[_duration$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core.Duration))));
  dart.setStaticFieldSignature(core.Duration, () => ['microsecondsPerMillisecond', 'millisecondsPerSecond', 'secondsPerMinute', 'minutesPerHour', 'hoursPerDay', 'microsecondsPerSecond', 'microsecondsPerMinute', 'microsecondsPerHour', 'microsecondsPerDay', 'millisecondsPerMinute', 'millisecondsPerHour', 'millisecondsPerDay', 'secondsPerHour', 'secondsPerDay', 'minutesPerDay', 'zero']);
  dart.defineExtensionMethods(core.Duration, ['_equals', 'compareTo', 'toString']);
  dart.defineExtensionAccessors(core.Duration, ['hashCode']);
  dart.defineLazy(core.Duration, {
    /*core.Duration.microsecondsPerMillisecond*/get microsecondsPerMillisecond() {
      return 1000;
    },
    /*core.Duration.millisecondsPerSecond*/get millisecondsPerSecond() {
      return 1000;
    },
    /*core.Duration.secondsPerMinute*/get secondsPerMinute() {
      return 60;
    },
    /*core.Duration.minutesPerHour*/get minutesPerHour() {
      return 60;
    },
    /*core.Duration.hoursPerDay*/get hoursPerDay() {
      return 24;
    },
    /*core.Duration.microsecondsPerSecond*/get microsecondsPerSecond() {
      return 1000000;
    },
    /*core.Duration.microsecondsPerMinute*/get microsecondsPerMinute() {
      return 60000000;
    },
    /*core.Duration.microsecondsPerHour*/get microsecondsPerHour() {
      return 3600000000.0;
    },
    /*core.Duration.microsecondsPerDay*/get microsecondsPerDay() {
      return 86400000000.0;
    },
    /*core.Duration.millisecondsPerMinute*/get millisecondsPerMinute() {
      return 60000;
    },
    /*core.Duration.millisecondsPerHour*/get millisecondsPerHour() {
      return 3600000;
    },
    /*core.Duration.millisecondsPerDay*/get millisecondsPerDay() {
      return 86400000;
    },
    /*core.Duration.secondsPerHour*/get secondsPerHour() {
      return 3600;
    },
    /*core.Duration.secondsPerDay*/get secondsPerDay() {
      return 86400;
    },
    /*core.Duration.minutesPerDay*/get minutesPerDay() {
      return 1440;
    },
    /*core.Duration.zero*/get zero() {
      return C[472] || CT.C472;
    }
  }, false);
  core.Enum = class Enum extends core.Object {
    static compareByIndex(T, value1, value2) {
      if (value1 == null) dart.nullFailed(I[16], 75, 47, "value1");
      if (value2 == null) dart.nullFailed(I[16], 75, 57, "value2");
      return dart.notNull(value1.index) - dart.notNull(value2.index);
    }
    static compareByName(T, value1, value2) {
      if (value1 == null) dart.nullFailed(I[16], 98, 46, "value1");
      if (value2 == null) dart.nullFailed(I[16], 98, 56, "value2");
      return core['EnumName|get#name'](value1)[$compareTo](core['EnumName|get#name'](value2));
    }
  };
  (core.Enum.new = function() {
    ;
  }).prototype = core.Enum.prototype;
  dart.addRtiResources(core.Enum, ["core|Enum"]);
  dart.setStaticMethodSignature(core.Enum, () => ['compareByIndex', 'compareByName']);
  dart.setLibraryUri(core.Enum, I[11]);
  core.TypeError = class TypeError extends core.Error {
    static ['_#new#tearOff']() {
      return new core.TypeError.new();
    }
  };
  (core.TypeError.new = function() {
    dart.global.Object.getPrototypeOf(core.TypeError).new.call(this);
    ;
  }).prototype = core.TypeError.prototype;
  dart.addRtiResources(core.TypeError, ["core|TypeError"]);
  dart.setLibraryUri(core.TypeError, I[11]);
  var invalidValue = dart.privateName(core, "ArgumentError.invalidValue");
  var name$15 = dart.privateName(core, "ArgumentError.name");
  var message$12 = dart.privateName(core, "ArgumentError.message");
  core.ArgumentError = class ArgumentError extends core.Error {
    get invalidValue() {
      return this[invalidValue];
    }
    set invalidValue(value) {
      super.invalidValue = value;
    }
    get name() {
      return this[name$15];
    }
    set name(value) {
      super.name = value;
    }
    get message() {
      return this[message$12];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message = null, name = null) {
      return new core.ArgumentError.new(message, name);
    }
    static ['_#value#tearOff'](value, name = null, message = null) {
      return new core.ArgumentError.value(value, name, message);
    }
    static ['_#notNull#tearOff'](name = null) {
      return new core.ArgumentError.notNull(name);
    }
    static checkNotNull(T, argument, name = null) {
      let t$36380;
      t$36380 = argument;
      return t$36380 == null ? dart.throw(new core.ArgumentError.notNull(name)) : t$36380;
    }
    get [_errorName$]() {
      return "Invalid argument" + (!dart.test(this[_hasValue$]) ? "(s)" : "");
    }
    get [_errorExplanation$]() {
      return "";
    }
    toString() {
      let name = this[$name];
      let nameString = name == null ? "" : " (" + dart.str(name) + ")";
      let message = this[$message];
      let messageString = message == null ? "" : ": " + dart.str(message);
      let prefix = dart.str(this[_errorName$]) + nameString + messageString;
      if (!dart.test(this[_hasValue$])) return prefix;
      let explanation = this[_errorExplanation$];
      let errorValue = core.Error.safeToString(this[$invalidValue]);
      return prefix + dart.str(explanation) + ": " + dart.str(errorValue);
    }
  };
  (core.ArgumentError.new = function(message = null, name = null) {
    this[message$12] = message;
    this[name$15] = name;
    this[invalidValue] = null;
    this[_hasValue$] = false;
    dart.global.Object.getPrototypeOf(core.ArgumentError).new.call(this);
    ;
  }).prototype = core.ArgumentError.prototype;
  (core.ArgumentError.value = function(value, name = null, message = null) {
    this[name$15] = name;
    this[message$12] = message;
    this[invalidValue] = value;
    this[_hasValue$] = true;
    dart.global.Object.getPrototypeOf(core.ArgumentError).new.call(this);
    ;
  }).prototype = core.ArgumentError.prototype;
  (core.ArgumentError.notNull = function(name = null) {
    this[name$15] = name;
    this[_hasValue$] = false;
    this[message$12] = "Must not be null";
    this[invalidValue] = null;
    dart.global.Object.getPrototypeOf(core.ArgumentError).new.call(this);
    ;
  }).prototype = core.ArgumentError.prototype;
  dart.addRtiResources(core.ArgumentError, ["core|ArgumentError"]);
  dart.setStaticMethodSignature(core.ArgumentError, () => ['checkNotNull']);
  dart.setGetterSignature(core.ArgumentError, () => dart.global.Object.setPrototypeOf({
    [_errorName$]: T$.String(),
    [_errorExplanation$]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.ArgumentError))));
  dart.setLibraryUri(core.ArgumentError, I[11]);
  dart.setFieldSignature(core.ArgumentError, () => dart.global.Object.setPrototypeOf({
    [_hasValue$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    invalidValue: {type: T$.dynamic(), isConst: false, isFinal: true},
    name: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    message: {type: T$.dynamic(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.ArgumentError))));
  dart.defineExtensionMethods(core.ArgumentError, ['toString']);
  dart.defineExtensionAccessors(core.ArgumentError, ['invalidValue', 'name', 'message']);
  var start = dart.privateName(core, "RangeError.start");
  var end = dart.privateName(core, "RangeError.end");
  core.RangeError = class RangeError extends core.ArgumentError {
    get start() {
      return this[start];
    }
    set start(value) {
      super.start = value;
    }
    get end() {
      return this[end];
    }
    set end(value) {
      super.end = value;
    }
    get invalidValue() {
      return T$3.numN()[_as](super[$invalidValue]);
    }
    static ['_#new#tearOff'](message) {
      return new core.RangeError.new(message);
    }
    static ['_#value#tearOff'](value, name = null, message = null) {
      if (value == null) dart.nullFailed(I[13], 265, 24, "value");
      return new core.RangeError.value(value, name, message);
    }
    static ['_#range#tearOff'](invalidValue, minValue, maxValue, name = null, message = null) {
      if (invalidValue == null) dart.nullFailed(I[13], 283, 24, "invalidValue");
      return new core.RangeError.range(invalidValue, minValue, maxValue, name, message);
    }
    static ['_#index#tearOff'](index, indexable, name = null, message = null, length = null) {
      if (index == null) dart.nullFailed(I[13], 298, 32, "index");
      return new core.IndexError.new(index, indexable, name, message, length);
    }
    static checkValueInInterval(value, minValue, maxValue, name = null, message = null) {
      if (value == null) dart.nullFailed(I[13], 310, 39, "value");
      if (minValue == null) dart.nullFailed(I[13], 310, 50, "minValue");
      if (maxValue == null) dart.nullFailed(I[13], 310, 64, "maxValue");
      if (dart.notNull(value) < dart.notNull(minValue) || dart.notNull(value) > dart.notNull(maxValue)) {
        dart.throw(new core.RangeError.range(value, minValue, maxValue, name, message));
      }
      return value;
    }
    static checkValidIndex(index, indexable, name = null, length = null, message = null) {
      if (index == null) dart.nullFailed(I[13], 333, 34, "index");
      length == null ? length = T$.int()[_as](dart.dload(indexable, 'length')) : null;
      return core.IndexError.check(index, length, {indexable: indexable, name: name, message: message});
    }
    static checkValidRange(start, end, length, startName = null, endName = null, message = null) {
      if (start == null) dart.nullFailed(I[13], 354, 34, "start");
      if (length == null) dart.nullFailed(I[13], 354, 55, "length");
      if (0 > dart.notNull(start) || dart.notNull(start) > dart.notNull(length)) {
        startName == null ? startName = "start" : null;
        dart.throw(new core.RangeError.range(start, 0, length, startName, message));
      }
      if (end != null) {
        if (dart.notNull(start) > dart.notNull(end) || dart.notNull(end) > dart.notNull(length)) {
          endName == null ? endName = "end" : null;
          dart.throw(new core.RangeError.range(end, start, length, endName, message));
        }
        return end;
      }
      return length;
    }
    static checkNotNegative(value, name = null, message = null) {
      let t$36380;
      if (value == null) dart.nullFailed(I[13], 381, 35, "value");
      if (dart.notNull(value) < 0) {
        dart.throw(new core.RangeError.range(value, 0, null, (t$36380 = name, t$36380 == null ? "index" : t$36380), message));
      }
      return value;
    }
    get [_errorName$]() {
      return "RangeError";
    }
    get [_errorExplanation$]() {
      if (!dart.test(this[_hasValue$])) dart.assertFailed(null, I[13], 390, 12, "_hasValue");
      let explanation = "";
      let start = this.start;
      let end = this.end;
      if (start == null) {
        if (end != null) {
          explanation = ": Not less than or equal to " + dart.str(end);
        }
      } else if (end == null) {
        explanation = ": Not greater than or equal to " + dart.str(start);
      } else if (dart.notNull(end) > dart.notNull(start)) {
        explanation = ": Not in inclusive range " + dart.str(start) + ".." + dart.str(end);
      } else if (dart.notNull(end) < dart.notNull(start)) {
        explanation = ": Valid value range is empty";
      } else {
        explanation = ": Only valid value is " + dart.str(start);
      }
      return explanation;
    }
  };
  (core.RangeError.new = function(message) {
    this[start] = null;
    this[end] = null;
    dart.global.Object.getPrototypeOf(core.RangeError).new.call(this, message);
    ;
  }).prototype = core.RangeError.prototype;
  (core.RangeError.value = function(value, name = null, message = null) {
    let t$36380;
    if (value == null) dart.nullFailed(I[13], 265, 24, "value");
    this[start] = null;
    this[end] = null;
    dart.global.Object.getPrototypeOf(core.RangeError).value.call(this, value, name, (t$36380 = message, t$36380 == null ? "Value not in range" : t$36380));
    ;
  }).prototype = core.RangeError.prototype;
  (core.RangeError.range = function(invalidValue, minValue, maxValue, name = null, message = null) {
    let t$36380;
    if (invalidValue == null) dart.nullFailed(I[13], 283, 24, "invalidValue");
    this[start] = minValue;
    this[end] = maxValue;
    dart.global.Object.getPrototypeOf(core.RangeError).value.call(this, invalidValue, name, (t$36380 = message, t$36380 == null ? "Invalid value" : t$36380));
    ;
  }).prototype = core.RangeError.prototype;
  dart.addRtiResources(core.RangeError, ["core|RangeError"]);
  dart.setStaticMethodSignature(core.RangeError, () => ['index', 'checkValueInInterval', 'checkValidIndex', 'checkValidRange', 'checkNotNegative']);
  dart.setGetterSignature(core.RangeError, () => dart.global.Object.setPrototypeOf({
    invalidValue: T$3.numN(),
    [$invalidValue]: T$3.numN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.RangeError))));
  dart.setLibraryUri(core.RangeError, I[11]);
  dart.setFieldSignature(core.RangeError, () => dart.global.Object.setPrototypeOf({
    start: {type: T$3.numN(), isConst: false, isFinal: true, libraryUri: I[11]},
    end: {type: T$3.numN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.RangeError))));
  dart.defineExtensionAccessors(core.RangeError, ['invalidValue']);
  var indexable$ = dart.privateName(core, "IndexError.indexable");
  var length$ = dart.privateName(core, "IndexError.length");
  core.IndexError = class IndexError extends core.ArgumentError {
    get indexable() {
      return this[indexable$];
    }
    set indexable(value) {
      super.indexable = value;
    }
    get length() {
      return this[length$];
    }
    set length(value) {
      super.length = value;
    }
    get invalidValue() {
      return T$.int()[_as](super[$invalidValue]);
    }
    static ['_#new#tearOff'](invalidValue, indexable, name = null, message = null, length = null) {
      if (invalidValue == null) dart.nullFailed(I[13], 438, 18, "invalidValue");
      return new core.IndexError.new(invalidValue, indexable, name, message, length);
    }
    static ['_#withLength#tearOff'](invalidValue, length, opts) {
      if (invalidValue == null) dart.nullFailed(I[13], 452, 29, "invalidValue");
      if (length == null) dart.nullFailed(I[13], 452, 48, "length");
      let indexable = opts && 'indexable' in opts ? opts.indexable : null;
      let name = opts && 'name' in opts ? opts.name : null;
      let message = opts && 'message' in opts ? opts.message : null;
      return new core.IndexError.withLength(invalidValue, length, {indexable: indexable, name: name, message: message});
    }
    static check(index, length, opts) {
      if (index == null) dart.nullFailed(I[13], 475, 24, "index");
      if (length == null) dart.nullFailed(I[13], 475, 35, "length");
      let indexable = opts && 'indexable' in opts ? opts.indexable : null;
      let name = opts && 'name' in opts ? opts.name : null;
      let message = opts && 'message' in opts ? opts.message : null;
      if (0 > dart.notNull(index) || dart.notNull(index) >= dart.notNull(length)) {
        name == null ? name = "index" : null;
        dart.throw(new core.IndexError.withLength(index, length, {indexable: indexable, name: name, message: message}));
      }
      return index;
    }
    get start() {
      return 0;
    }
    get end() {
      return dart.notNull(this.length) - 1;
    }
    get [_errorName$]() {
      return "RangeError";
    }
    get [_errorExplanation$]() {
      if (!dart.test(this[_hasValue$])) dart.assertFailed(null, I[13], 492, 12, "_hasValue");
      let invalidValue = this.invalidValue;
      if (dart.notNull(invalidValue) < 0) {
        return ": index must not be negative";
      }
      if (this.length === 0) {
        return ": no indices are valid";
      }
      return ": index should be less than " + dart.str(this.length);
    }
  };
  (core.IndexError.new = function(invalidValue, indexable, name = null, message = null, length = null) {
    let t$36380, t$36380$;
    if (invalidValue == null) dart.nullFailed(I[13], 438, 18, "invalidValue");
    this[indexable$] = indexable;
    this[length$] = T$.int()[_as]((t$36380 = length, t$36380 == null ? dart.dload(indexable, 'length') : t$36380));
    dart.global.Object.getPrototypeOf(core.IndexError).value.call(this, invalidValue, name, (t$36380$ = message, t$36380$ == null ? "Index out of range" : t$36380$));
    ;
  }).prototype = core.IndexError.prototype;
  (core.IndexError.withLength = function(invalidValue, length, opts) {
    let t$36380;
    if (invalidValue == null) dart.nullFailed(I[13], 452, 29, "invalidValue");
    if (length == null) dart.nullFailed(I[13], 452, 48, "length");
    let indexable = opts && 'indexable' in opts ? opts.indexable : null;
    let name = opts && 'name' in opts ? opts.name : null;
    let message = opts && 'message' in opts ? opts.message : null;
    this[length$] = length;
    this[indexable$] = indexable;
    dart.global.Object.getPrototypeOf(core.IndexError).value.call(this, invalidValue, name, (t$36380 = message, t$36380 == null ? "Index out of range" : t$36380));
    ;
  }).prototype = core.IndexError.prototype;
  dart.addRtiResources(core.IndexError, ["core|IndexError", "core|RangeError", "core|ArgumentError", "core|Error"]);
  dart.setStaticMethodSignature(core.IndexError, () => ['check']);
  dart.setGetterSignature(core.IndexError, () => dart.global.Object.setPrototypeOf({
    invalidValue: T$.int(),
    [$invalidValue]: T$.int(),
    start: T$.int(),
    end: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.IndexError))));
  dart.setLibraryUri(core.IndexError, I[11]);
  dart.setFieldSignature(core.IndexError, () => dart.global.Object.setPrototypeOf({
    indexable: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    length: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.IndexError))));
  dart.defineExtensionAccessors(core.IndexError, ['invalidValue']);
  core.NoSuchMethodError = class NoSuchMethodError extends core.Error {
    static ['_#new#tearOff'](receiver, memberName, positionalArguments, namedArguments) {
      if (memberName == null) dart.nullFailed(I[9], 584, 46, "memberName");
      return new core.NoSuchMethodError.new(receiver, memberName, positionalArguments, namedArguments);
    }
    static ['_#_withInvocation#tearOff'](_receiver, invocation) {
      if (invocation == null) dart.nullFailed(I[9], 597, 64, "invocation");
      return new core.NoSuchMethodError._withInvocation(_receiver, invocation);
    }
    static ['_#withInvocation#tearOff'](receiver, invocation) {
      if (invocation == null) dart.nullFailed(I[9], 594, 40, "invocation");
      return new core.NoSuchMethodError._withInvocation(receiver, invocation);
    }
    toString() {
      let sb = new core.StringBuffer.new("");
      let comma = "";
      let $arguments = this[_arguments$];
      if ($arguments != null) {
        for (let argument of $arguments) {
          sb.write(comma);
          sb.write(core.Error.safeToString(argument));
          comma = ", ";
        }
      }
      let namedArguments = this[_namedArguments$];
      if (namedArguments != null) {
        namedArguments[$forEach](dart.fn((key, value) => {
          if (key == null) dart.nullFailed(I[9], 617, 38, "key");
          sb.write(comma);
          sb.write(core._symbolToString(key));
          sb.write(": ");
          sb.write(core.Error.safeToString(value));
          comma = ", ";
        }, T$8.SymbolAnddynamicTovoid()));
      }
      let memberName = core._symbolToString(this[_memberName$]);
      let receiverText = core.Error.safeToString(this[_receiver$]);
      let actualParameters = dart.str(sb);
      let invocation = this[_invocation$];
      let failureMessage = T$8.InvocationImpl()[_is](invocation) ? invocation.failureMessage : "method not found";
      return "NoSuchMethodError: '" + dart.str(memberName) + "'\n" + dart.str(failureMessage) + "\n" + "Receiver: " + dart.str(receiverText) + "\n" + "Arguments: [" + actualParameters + "]";
    }
  };
  (core.NoSuchMethodError.new = function(receiver, memberName, positionalArguments, namedArguments) {
    if (memberName == null) dart.nullFailed(I[9], 584, 46, "memberName");
    this[_receiver$] = receiver;
    this[_memberName$] = memberName;
    this[_arguments$] = positionalArguments;
    this[_namedArguments$] = namedArguments;
    this[_invocation$] = null;
    dart.global.Object.getPrototypeOf(core.NoSuchMethodError).new.call(this);
    ;
  }).prototype = core.NoSuchMethodError.prototype;
  (core.NoSuchMethodError._withInvocation = function(_receiver, invocation) {
    if (invocation == null) dart.nullFailed(I[9], 597, 64, "invocation");
    this[_receiver$] = _receiver;
    this[_memberName$] = invocation.memberName;
    this[_arguments$] = invocation.positionalArguments;
    this[_namedArguments$] = invocation.namedArguments;
    this[_invocation$] = invocation;
    dart.global.Object.getPrototypeOf(core.NoSuchMethodError).new.call(this);
    ;
  }).prototype = core.NoSuchMethodError.prototype;
  dart.addRtiResources(core.NoSuchMethodError, ["core|NoSuchMethodError"]);
  dart.setStaticMethodSignature(core.NoSuchMethodError, () => ['withInvocation']);
  dart.setLibraryUri(core.NoSuchMethodError, I[11]);
  dart.setFieldSignature(core.NoSuchMethodError, () => dart.global.Object.setPrototypeOf({
    [_receiver$]: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_memberName$]: {type: T$.Symbol(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_arguments$]: {type: T$.ListN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_namedArguments$]: {type: T$.MapNOfSymbol$dynamic(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_invocation$]: {type: T$.InvocationN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.NoSuchMethodError))));
  dart.defineExtensionMethods(core.NoSuchMethodError, ['toString']);
  var message$13 = dart.privateName(core, "UnsupportedError.message");
  core.UnsupportedError = class UnsupportedError extends core.Error {
    get message() {
      return this[message$13];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message) {
      if (message == null) dart.nullFailed(I[13], 536, 32, "message");
      return new core.UnsupportedError.new(message);
    }
    toString() {
      return "Unsupported operation: " + dart.str(this.message);
    }
  };
  (core.UnsupportedError.new = function(message) {
    if (message == null) dart.nullFailed(I[13], 536, 32, "message");
    this[message$13] = message;
    dart.global.Object.getPrototypeOf(core.UnsupportedError).new.call(this);
    ;
  }).prototype = core.UnsupportedError.prototype;
  dart.addRtiResources(core.UnsupportedError, ["core|UnsupportedError"]);
  dart.setLibraryUri(core.UnsupportedError, I[11]);
  dart.setFieldSignature(core.UnsupportedError, () => dart.global.Object.setPrototypeOf({message: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core.UnsupportedError))));
  dart.defineExtensionMethods(core.UnsupportedError, ['toString']);
  var message$14 = dart.privateName(core, "UnimplementedError.message");
  core.UnimplementedError = class UnimplementedError extends core.Error {
    get message() {
      return this[message$14];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message = null) {
      return new core.UnimplementedError.new(message);
    }
    toString() {
      let message = this.message;
      return message != null ? "UnimplementedError: " + dart.str(message) : "UnimplementedError";
    }
  };
  (core.UnimplementedError.new = function(message = null) {
    this[message$14] = message;
    dart.global.Object.getPrototypeOf(core.UnimplementedError).new.call(this);
    ;
  }).prototype = core.UnimplementedError.prototype;
  dart.addRtiResources(core.UnimplementedError, ["core|UnimplementedError", "core|UnsupportedError", "core|Error"]);
  dart.setLibraryUri(core.UnimplementedError, I[11]);
  dart.setFieldSignature(core.UnimplementedError, () => dart.global.Object.setPrototypeOf({message: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core.UnimplementedError))));
  dart.defineExtensionMethods(core.UnimplementedError, ['toString']);
  var message$15 = dart.privateName(core, "StateError.message");
  core.StateError = class StateError extends core.Error {
    get message() {
      return this[message$15];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message) {
      if (message == null) dart.nullFailed(I[13], 575, 19, "message");
      return new core.StateError.new(message);
    }
    toString() {
      return "Bad state: " + dart.str(this.message);
    }
  };
  (core.StateError.new = function(message) {
    if (message == null) dart.nullFailed(I[13], 575, 19, "message");
    this[message$15] = message;
    dart.global.Object.getPrototypeOf(core.StateError).new.call(this);
    ;
  }).prototype = core.StateError.prototype;
  dart.addRtiResources(core.StateError, ["core|StateError"]);
  dart.setLibraryUri(core.StateError, I[11]);
  dart.setFieldSignature(core.StateError, () => dart.global.Object.setPrototypeOf({message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core.StateError))));
  dart.defineExtensionMethods(core.StateError, ['toString']);
  var modifiedObject$ = dart.privateName(core, "ConcurrentModificationError.modifiedObject");
  core.ConcurrentModificationError = class ConcurrentModificationError extends core.Error {
    get modifiedObject() {
      return this[modifiedObject$];
    }
    set modifiedObject(value) {
      super.modifiedObject = value;
    }
    static ['_#new#tearOff'](modifiedObject = null) {
      return new core.ConcurrentModificationError.new(modifiedObject);
    }
    toString() {
      if (this.modifiedObject == null) {
        return "Concurrent modification during iteration.";
      }
      return "Concurrent modification during iteration: " + dart.str(core.Error.safeToString(this.modifiedObject)) + ".";
    }
  };
  (core.ConcurrentModificationError.new = function(modifiedObject = null) {
    this[modifiedObject$] = modifiedObject;
    dart.global.Object.getPrototypeOf(core.ConcurrentModificationError).new.call(this);
    ;
  }).prototype = core.ConcurrentModificationError.prototype;
  dart.addRtiResources(core.ConcurrentModificationError, ["core|ConcurrentModificationError"]);
  dart.setLibraryUri(core.ConcurrentModificationError, I[11]);
  dart.setFieldSignature(core.ConcurrentModificationError, () => dart.global.Object.setPrototypeOf({modifiedObject: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core.ConcurrentModificationError))));
  dart.defineExtensionMethods(core.ConcurrentModificationError, ['toString']);
  core.OutOfMemoryError = class OutOfMemoryError extends core.Object {
    static ['_#new#tearOff']() {
      return new core.OutOfMemoryError.new();
    }
    toString() {
      return "Out of Memory";
    }
    get stackTrace() {
      return null;
    }
  };
  (core.OutOfMemoryError.new = function() {
    ;
  }).prototype = core.OutOfMemoryError.prototype;
  dart.addRtiResources(core.OutOfMemoryError, ["core|OutOfMemoryError", "core|Error"]);
  dart.setGetterSignature(core.OutOfMemoryError, () => dart.global.Object.setPrototypeOf({
    stackTrace: T$.StackTraceN(),
    [$stackTrace]: T$.StackTraceN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.OutOfMemoryError))));
  dart.setLibraryUri(core.OutOfMemoryError, I[11]);
  dart.defineExtensionMethods(core.OutOfMemoryError, ['toString']);
  dart.defineExtensionAccessors(core.OutOfMemoryError, ['stackTrace']);
  core.StackOverflowError = class StackOverflowError extends core.Object {
    static ['_#new#tearOff']() {
      return new core.StackOverflowError.new();
    }
    toString() {
      return "Stack Overflow";
    }
    get stackTrace() {
      return null;
    }
  };
  (core.StackOverflowError.new = function() {
    ;
  }).prototype = core.StackOverflowError.prototype;
  dart.addRtiResources(core.StackOverflowError, ["core|StackOverflowError", "core|Error"]);
  dart.setGetterSignature(core.StackOverflowError, () => dart.global.Object.setPrototypeOf({
    stackTrace: T$.StackTraceN(),
    [$stackTrace]: T$.StackTraceN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.StackOverflowError))));
  dart.setLibraryUri(core.StackOverflowError, I[11]);
  dart.defineExtensionMethods(core.StackOverflowError, ['toString']);
  dart.defineExtensionAccessors(core.StackOverflowError, ['stackTrace']);
  core.Exception = class Exception extends core.Object {
    static new(message = null) {
      return new core._Exception.new(message);
    }
    static ['_#new#tearOff'](message = null) {
      return core.Exception.new(message);
    }
  };
  (core.Exception[dart.mixinNew] = function() {
  }).prototype = core.Exception.prototype;
  dart.addRtiResources(core.Exception, ["core|Exception"]);
  dart.setStaticMethodSignature(core.Exception, () => ['new']);
  dart.setLibraryUri(core.Exception, I[11]);
  core._Exception = class _Exception extends core.Object {
    static ['_#new#tearOff'](message = null) {
      return new core._Exception.new(message);
    }
    toString() {
      let message = this.message;
      if (message == null) return "Exception";
      return "Exception: " + dart.str(message);
    }
  };
  (core._Exception.new = function(message = null) {
    this.message = message;
    ;
  }).prototype = core._Exception.prototype;
  dart.addRtiResources(core._Exception, ["core|_Exception", "core|Exception"]);
  dart.setLibraryUri(core._Exception, I[11]);
  dart.setFieldSignature(core._Exception, () => dart.global.Object.setPrototypeOf({message: {type: T$.dynamic(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(core._Exception))));
  dart.defineExtensionMethods(core._Exception, ['toString']);
  var message$16 = dart.privateName(core, "FormatException.message");
  var source$ = dart.privateName(core, "FormatException.source");
  var offset$ = dart.privateName(core, "FormatException.offset");
  core.FormatException = class FormatException extends core.Object {
    get message() {
      return this[message$16];
    }
    set message(value) {
      super.message = value;
    }
    get source() {
      return this[source$];
    }
    set source(value) {
      super.source = value;
    }
    get offset() {
      return this[offset$];
    }
    set offset(value) {
      super.offset = value;
    }
    static ['_#new#tearOff'](message = "", source = null, offset = null) {
      if (message == null) dart.nullFailed(I[189], 72, 31, "message");
      return new core.FormatException.new(message, source, offset);
    }
    toString() {
      let report = "FormatException";
      let message = this.message;
      if (message != null && "" !== message) {
        report = report + ": " + dart.str(message);
      }
      let offset = this.offset;
      let source = this.source;
      if (typeof source == 'string') {
        if (offset != null && (dart.notNull(offset) < 0 || dart.notNull(offset) > source.length)) {
          offset = null;
        }
        if (offset == null) {
          if (source.length > 78) {
            source = source[$substring](0, 75) + "...";
          }
          return report + "\n" + dart.str(source);
        }
        let lineNum = 1;
        let lineStart = 0;
        let previousCharWasCR = false;
        for (let i = 0; i < dart.notNull(offset); i = i + 1) {
          let char = source[$codeUnitAt](i);
          if (char === 10) {
            if (lineStart !== i || !previousCharWasCR) {
              lineNum = lineNum + 1;
            }
            lineStart = i + 1;
            previousCharWasCR = false;
          } else if (char === 13) {
            lineNum = lineNum + 1;
            lineStart = i + 1;
            previousCharWasCR = true;
          }
        }
        if (lineNum > 1) {
          report = report + (" (at line " + dart.strSafe(lineNum) + ", character " + dart.strSafe(dart.notNull(offset) - lineStart + 1) + ")\n");
        } else {
          report = report + (" (at character " + dart.strSafe(dart.notNull(offset) + 1) + ")\n");
        }
        let lineEnd = source.length;
        for (let i = offset; dart.notNull(i) < source.length; i = dart.notNull(i) + 1) {
          let char = source[$codeUnitAt](i);
          if (char === 10 || char === 13) {
            lineEnd = i;
            break;
          }
        }
        let length = dart.notNull(lineEnd) - lineStart;
        let start = lineStart;
        let end = lineEnd;
        let prefix = "";
        let postfix = "";
        if (length > 78) {
          let index = dart.notNull(offset) - lineStart;
          if (index < 75) {
            end = start + 75;
            postfix = "...";
          } else if (dart.notNull(end) - dart.notNull(offset) < 75) {
            start = dart.notNull(end) - 75;
            prefix = "...";
          } else {
            start = dart.notNull(offset) - 36;
            end = dart.notNull(offset) + 36;
            prefix = postfix = "...";
          }
        }
        let slice = source[$substring](start, end);
        let markOffset = dart.notNull(offset) - start + prefix.length;
        return report + prefix + slice + postfix + "\n" + " "[$times](markOffset) + "^\n";
      } else {
        if (offset != null) {
          report = report + (" (at offset " + dart.str(offset) + ")");
        }
        return report;
      }
    }
  };
  (core.FormatException.new = function(message = "", source = null, offset = null) {
    if (message == null) dart.nullFailed(I[189], 72, 31, "message");
    this[message$16] = message;
    this[source$] = source;
    this[offset$] = offset;
    ;
  }).prototype = core.FormatException.prototype;
  dart.addRtiResources(core.FormatException, ["core|FormatException", "core|Exception"]);
  dart.setLibraryUri(core.FormatException, I[11]);
  dart.setFieldSignature(core.FormatException, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    source: {type: T$.dynamic(), isConst: false, isFinal: true},
    offset: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.FormatException))));
  dart.defineExtensionMethods(core.FormatException, ['toString']);
  core.IntegerDivisionByZeroException = class IntegerDivisionByZeroException extends core.Object {
    get message() {
      return "Division resulted in non-finite value";
    }
    get stackTrace() {
      return null;
    }
    static ['_#new#tearOff']() {
      return new core.IntegerDivisionByZeroException.new();
    }
    toString() {
      return "IntegerDivisionByZeroException";
    }
  };
  (core.IntegerDivisionByZeroException.new = function() {
    ;
  }).prototype = core.IntegerDivisionByZeroException.prototype;
  dart.addRtiResources(core.IntegerDivisionByZeroException, ["core|IntegerDivisionByZeroException", "core|Exception", "core|UnsupportedError", "core|Error"]);
  dart.setGetterSignature(core.IntegerDivisionByZeroException, () => dart.global.Object.setPrototypeOf({
    message: T$.StringN(),
    stackTrace: T$.StackTraceN(),
    [$stackTrace]: T$.StackTraceN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.IntegerDivisionByZeroException))));
  dart.setLibraryUri(core.IntegerDivisionByZeroException, I[11]);
  dart.defineExtensionMethods(core.IntegerDivisionByZeroException, ['toString']);
  dart.defineExtensionAccessors(core.IntegerDivisionByZeroException, ['stackTrace']);
  core.Function = class Function extends core.Object {
    static _toMangledNames(namedArguments) {
      if (namedArguments == null) dart.nullFailed(I[9], 107, 28, "namedArguments");
      let result = new (G.IdentityMapOfString$dynamic()).new();
      namedArguments[$forEach](dart.fn((symbol, value) => {
        if (symbol == null) dart.nullFailed(I[9], 109, 29, "symbol");
        result[$_set](core._symbolToString(symbol), value);
      }, T$8.SymbolAnddynamicTovoid()));
      return result;
    }
    static apply($function, positionalArguments, namedArguments = null) {
      if ($function == null) dart.nullFailed(I[9], 81, 25, "function");
      let needsCopy = namedArguments != null && dart.test(namedArguments[$isNotEmpty]);
      if (positionalArguments == null) {
        positionalArguments = [];
      } else if (needsCopy || !Array.isArray(positionalArguments)) {
        positionalArguments = core.List.of(positionalArguments);
      }
      if (namedArguments != null && dart.test(namedArguments[$isNotEmpty])) {
        let map = {};
        namedArguments[$forEach](dart.fn((symbol, arg) => {
          if (symbol == null) dart.nullFailed(I[9], 98, 31, "symbol");
          map[core._symbolToString(symbol)] = arg;
        }, T$8.SymbolAnddynamicTovoid()));
        return dart.dcall($function, positionalArguments, map);
      }
      return dart.dcall($function, positionalArguments);
    }
  };
  (core.Function.new = function() {
    ;
  }).prototype = core.Function.prototype;
  dart.addRtiResources(core.Function, ["core|Function"]);
  dart.setStaticMethodSignature(core.Function, () => ['_toMangledNames', 'apply']);
  dart.setLibraryUri(core.Function, I[11]);
  core.int = class int extends core.num {
    static fromEnvironment(name, opts) {
      if (name == null) dart.nullFailed(I[9], 224, 38, "name");
      let defaultValue = opts && 'defaultValue' in opts ? opts.defaultValue : 0;
      if (defaultValue == null) dart.nullFailed(I[9], 224, 49, "defaultValue");
      dart.throw(new core.UnsupportedError.new("int.fromEnvironment can only be used as a const constructor"));
    }
    static ['_#fromEnvironment#tearOff'](name, opts) {
      if (name == null) dart.nullFailed(I[9], 224, 38, "name");
      let defaultValue = opts && 'defaultValue' in opts ? opts.defaultValue : 0;
      if (defaultValue == null) dart.nullFailed(I[9], 224, 49, "defaultValue");
      return core.int.fromEnvironment(name, {defaultValue: defaultValue});
    }
    static parse(source, opts) {
      if (source == null) dart.nullFailed(I[9], 210, 27, "source");
      let radix = opts && 'radix' in opts ? opts.radix : null;
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let value = core.int.tryParse(source, {radix: radix});
      if (value != null) return value;
      if (onError != null) return onError(source);
      dart.throw(new core.FormatException.new(source));
    }
    static tryParse(source, opts) {
      if (source == null) dart.nullFailed(I[9], 219, 31, "source");
      let radix = opts && 'radix' in opts ? opts.radix : null;
      return _js_helper.Primitives.parseInt(source, radix);
    }
  };
  dart.addRtiResources(core.int, ["core|int"]);
  dart.setStaticMethodSignature(core.int, () => ['fromEnvironment', 'parse', 'tryParse']);
  dart.setLibraryUri(core.int, I[11]);
  var _positional = dart.privateName(core, "_positional");
  var _named$ = dart.privateName(core, "_named");
  core._Invocation = class _Invocation extends core.Object {
    static ['_#method#tearOff'](memberName, types, positional, named) {
      if (memberName == null) dart.nullFailed(I[14], 103, 27, "memberName");
      return new core._Invocation.method(memberName, types, positional, named);
    }
    static ['_#getter#tearOff'](memberName) {
      if (memberName == null) dart.nullFailed(I[14], 113, 27, "memberName");
      return new core._Invocation.getter(memberName);
    }
    static ['_#setter#tearOff'](memberName, argument) {
      if (memberName == null) dart.nullFailed(I[14], 118, 27, "memberName");
      return new core._Invocation.setter(memberName, argument);
    }
    get positionalArguments() {
      let t$36380;
      t$36380 = this[_positional];
      return t$36380 == null ? C[475] || CT.C475 : t$36380;
    }
    get namedArguments() {
      let t$36380;
      t$36380 = this[_named$];
      return t$36380 == null ? C[476] || CT.C476 : t$36380;
    }
    get isMethod() {
      return this[_named$] != null;
    }
    get isGetter() {
      return this[_positional] == null;
    }
    get isSetter() {
      return this[_positional] != null && this[_named$] == null;
    }
    get isAccessor() {
      return this[_named$] == null;
    }
    static _ensureNonNullTypes(types) {
      if (types == null) return C[1] || CT.C1;
      let typeArguments = G.ListOfType().unmodifiable(types);
      for (let i = 0; i < dart.notNull(typeArguments[$length]); i = i + 1) {
        if (typeArguments[$_get](i) == null) {
          dart.throw(new core.ArgumentError.value(types, "types", "Type arguments must be non-null, was null at index " + dart.strSafe(i) + "."));
        }
      }
      return typeArguments;
    }
  };
  (core._Invocation.method = function(memberName, types, positional, named) {
    if (memberName == null) dart.nullFailed(I[14], 103, 27, "memberName");
    this.memberName = memberName;
    this.typeArguments = core._Invocation._ensureNonNullTypes(types);
    this[_positional] = positional == null ? C[473] || CT.C473 : G.ListOfObjectN().unmodifiable(positional);
    this[_named$] = named == null || dart.test(named[$isEmpty]) ? C[474] || CT.C474 : G$.MapOfSymbol$ObjectN().unmodifiable(named);
    ;
  }).prototype = core._Invocation.prototype;
  (core._Invocation.getter = function(memberName) {
    if (memberName == null) dart.nullFailed(I[14], 113, 27, "memberName");
    this.memberName = memberName;
    this.typeArguments = C[1] || CT.C1;
    this[_positional] = null;
    this[_named$] = null;
    ;
  }).prototype = core._Invocation.prototype;
  (core._Invocation.setter = function(memberName, argument) {
    if (memberName == null) dart.nullFailed(I[14], 118, 27, "memberName");
    this.memberName = memberName;
    this.typeArguments = C[1] || CT.C1;
    this[_positional] = G.ListOfObjectN().unmodifiable([argument]);
    this[_named$] = null;
    ;
  }).prototype = core._Invocation.prototype;
  dart.addRtiResources(core._Invocation, ["core|_Invocation", "core|Invocation"]);
  dart.setStaticMethodSignature(core._Invocation, () => ['_ensureNonNullTypes']);
  dart.setGetterSignature(core._Invocation, () => dart.global.Object.setPrototypeOf({
    positionalArguments: T$.List(),
    namedArguments: T$.MapOfSymbol$dynamic(),
    isMethod: T$.bool(),
    isGetter: T$.bool(),
    isSetter: T$.bool(),
    isAccessor: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core._Invocation))));
  dart.setLibraryUri(core._Invocation, I[11]);
  dart.setFieldSignature(core._Invocation, () => dart.global.Object.setPrototypeOf({
    memberName: {type: T$.Symbol(), isConst: false, isFinal: true, libraryUri: I[11]},
    typeArguments: {type: T$.ListOfType(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_positional]: {type: T$8.ListNOfObjectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_named$]: {type: T$8.MapNOfSymbol$ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core._Invocation))));
  var length$0 = dart.privateName(core, "_GeneratorIterable.length");
  var _generator$ = dart.privateName(core, "_generator");
  core._GeneratorIterable$ = dart.generic(E => {
    var __t$_GeneratorIterableOfE = () => (__t$_GeneratorIterableOfE = dart.constFn(E[_eval]("core|_GeneratorIterable<0>")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$ListIterableOfE = () => (__t$ListIterableOfE = dart.constFn(_internal.ListIterable$(E)))();
    class _GeneratorIterable extends __t$ListIterableOfE() {
      get length() {
        return this[length$0];
      }
      set length(value) {
        super.length = value;
      }
      static ['_#new#tearOff'](E, length, _generator) {
        if (length == null) dart.nullFailed(I[45], 896, 27, "length");
        if (_generator == null) dart.nullFailed(I[45], 896, 40, "_generator");
        return new (core._GeneratorIterable$(E)).new(length, _generator);
      }
      elementAt(index) {
        let t$36380;
        if (index == null) dart.nullFailed(I[45], 898, 19, "index");
        core.IndexError.check(index, this.length, {indexable: this});
        t$36380 = index;
        return this[_generator$](t$36380);
      }
      static _id(n) {
        if (n == null) dart.nullFailed(I[45], 904, 22, "n");
        return n;
      }
    }
    (_GeneratorIterable.new = function(length, _generator) {
      if (length == null) dart.nullFailed(I[45], 896, 27, "length");
      if (_generator == null) dart.nullFailed(I[45], 896, 40, "_generator");
      this[length$0] = length;
      this[_generator$] = _generator;
      this.$ti = this.$ti || __t$_GeneratorIterableOfE();
      dart.global.Object.getPrototypeOf(_GeneratorIterable).new.call(this);
      ;
    }).prototype = _GeneratorIterable.prototype;
    dart.addRtiResources(_GeneratorIterable, ["core|_GeneratorIterable"]);
    dart.setStaticMethodSignature(_GeneratorIterable, () => ['_id']);
    dart.setLibraryUri(_GeneratorIterable, I[11]);
    dart.setFieldSignature(_GeneratorIterable, () => dart.global.Object.setPrototypeOf({
      length: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_generator$]: {type: __t$intToE(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_GeneratorIterable))));
    dart.defineExtensionMethods(_GeneratorIterable, ['elementAt']);
    dart.defineExtensionAccessors(_GeneratorIterable, ['length']);
    return _GeneratorIterable;
  });
  core._GeneratorIterable = core._GeneratorIterable$();
  core.Iterator$ = dart.generic(E => {
    var __t$IteratorOfE = () => (__t$IteratorOfE = dart.constFn(E[_eval]("core|Iterator<0>")))();
    class Iterator extends core.Object {}
    (Iterator.new = function() {
      this.$ti = this.$ti || __t$IteratorOfE();
      ;
    }).prototype = Iterator.prototype;
    dart.addRtiResources(Iterator, ["core|Iterator"]);
    dart.setLibraryUri(Iterator, I[11]);
    return Iterator;
  });
  core.Iterator = core.Iterator$();
  core._ListIterable$ = dart.generic(E => {
    var __t$_ListIterableOfE = () => (__t$_ListIterableOfE = dart.constFn(E[_eval]("core|_ListIterable<0>")))();
    class _ListIterable extends core.Object {
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (_ListIterable.new = function() {
      this.$ti = this.$ti || __t$_ListIterableOfE();
      ;
    }).prototype = _ListIterable.prototype;
    dart.addRtiResources(_ListIterable, ["core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setLibraryUri(_ListIterable, I[11]);
    return _ListIterable;
  });
  core._ListIterable = core._ListIterable$();
  core.List$ = dart.generic(E => {
    class List extends core.Object {
      static ['_#filled#tearOff'](E, length, fill, opts) {
        if (length == null) dart.nullFailed(I[9], 310, 38, "length");
        let growable = opts && 'growable' in opts ? opts.growable : false;
        if (growable == null) dart.nullFailed(I[9], 310, 60, "growable");
        return core.List$(E).filled(length, fill, {growable: growable});
      }
      static filled(length, fill, opts) {
        if (length == null) dart.argumentError(length);
        let growable = opts && 'growable' in opts ? opts.growable : false;
        if (growable == null) dart.nullFailed(I[9], 310, 60, "growable");
        let list = _interceptors.JSArray$(E).of(new Array(length));
        list.fill(fill);
        if (!dart.test(growable)) _interceptors.JSArray.markFixedList(list);
        return list;
      }
      static ['_#empty#tearOff'](E, opts) {
        let growable = opts && 'growable' in opts ? opts.growable : false;
        if (growable == null) dart.nullFailed(I[9], 303, 28, "growable");
        return core.List$(E).empty({growable: growable});
      }
      static empty(opts) {
        let growable = opts && 'growable' in opts ? opts.growable : false;
        if (growable == null) dart.nullFailed(I[9], 303, 28, "growable");
        let list = _interceptors.JSArray$(E).of(new Array());
        if (!dart.test(growable)) _interceptors.JSArray.markFixedList(list);
        return list;
      }
      static ['_#from#tearOff'](E, elements, opts) {
        if (elements == null) dart.nullFailed(I[9], 318, 30, "elements");
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[9], 318, 46, "growable");
        return core.List$(E).from(elements, {growable: growable});
      }
      static from(elements, opts) {
        if (elements == null) dart.nullFailed(I[9], 318, 30, "elements");
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[9], 318, 46, "growable");
        let list = _interceptors.JSArray$(E).of([]);
        if (E[_eval]("core|Iterable<0>")[_is](elements)) {
          for (let e of elements) {
            list.push(e);
          }
        } else {
          for (let e of elements) {
            list.push(E[_as](e));
          }
        }
        if (!dart.test(growable)) _interceptors.JSArray.markFixedList(list);
        return list;
      }
      static ['_#of#tearOff'](E, elements, opts) {
        if (elements == null) dart.nullFailed(I[9], 340, 31, "elements");
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[9], 340, 47, "growable");
        return core.List$(E).of(elements, {growable: growable});
      }
      static of(elements, opts) {
        if (elements == null) dart.nullFailed(I[9], 340, 31, "elements");
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[9], 340, 47, "growable");
        let list = _interceptors.JSArray$(E).of([]);
        for (let e of elements) {
          list.push(e);
        }
        if (!dart.test(growable)) _interceptors.JSArray.markFixedList(list);
        return list;
      }
      static ['_#generate#tearOff'](E, length, generator, opts) {
        if (length == null) dart.nullFailed(I[9], 352, 29, "length");
        if (generator == null) dart.nullFailed(I[9], 352, 39, "generator");
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[9], 353, 13, "growable");
        return core.List$(E).generate(length, generator, {growable: growable});
      }
      static generate(length, generator, opts) {
        if (length == null) dart.nullFailed(I[9], 352, 29, "length");
        if (generator == null) dart.nullFailed(I[9], 352, 39, "generator");
        let growable = opts && 'growable' in opts ? opts.growable : true;
        if (growable == null) dart.nullFailed(I[9], 353, 13, "growable");
        let result = _interceptors.JSArray$(E).of(new Array(length));
        if (!dart.test(growable)) _interceptors.JSArray.markFixedList(result);
        for (let i = 0; i < dart.notNull(length); i = i + 1) {
          result[i] = generator(i);
        }
        return result;
      }
      static unmodifiable(elements) {
        if (elements == null) dart.nullFailed(I[9], 365, 38, "elements");
        let list = core.List$(E).from(elements);
        _interceptors.JSArray.markUnmodifiableList(list);
        return list;
      }
      static ['_#unmodifiable#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[9], 365, 38, "elements");
        return core.List$(E).unmodifiable(elements);
      }
      static castFrom(S, T, source) {
        if (source == null) dart.nullFailed(I[190], 260, 41, "source");
        return new (_internal.CastList$(S, T)).new(source);
      }
      static copyRange(T, target, at, source, start = null, end = null) {
        if (target == null) dart.nullFailed(I[190], 276, 36, "target");
        if (at == null) dart.nullFailed(I[190], 276, 48, "at");
        if (source == null) dart.nullFailed(I[190], 276, 60, "source");
        start == null ? start = 0 : null;
        end = core.RangeError.checkValidRange(start, end, source[$length]);
        if (end == null) {
          dart.throw("unreachable");
        }
        let length = dart.notNull(end) - dart.notNull(start);
        if (dart.notNull(target[$length]) < dart.notNull(at) + length) {
          dart.throw(new core.ArgumentError.value(target, "target", "Not big enough to hold " + dart.strSafe(length) + " elements at position " + dart.str(at)));
        }
        if (source != target || dart.notNull(start) >= dart.notNull(at)) {
          for (let i = 0; i < length; i = i + 1) {
            target[$_set](dart.notNull(at) + i, source[$_get](dart.notNull(start) + i));
          }
        } else {
          for (let i = length; (i = i - 1) >= 0;) {
            target[$_set](dart.notNull(at) + i, source[$_get](dart.notNull(start) + i));
          }
        }
      }
      static writeIterable(T, target, at, source) {
        if (target == null) dart.nullFailed(I[190], 311, 40, "target");
        if (at == null) dart.nullFailed(I[190], 311, 52, "at");
        if (source == null) dart.nullFailed(I[190], 311, 68, "source");
        core.RangeError.checkValueInInterval(at, 0, target[$length], "at");
        let index = at;
        let targetLength = target[$length];
        for (let element of source) {
          if (index == targetLength) {
            dart.throw(new core.IndexError.withLength(index, targetLength, {indexable: target}));
          }
          target[$_set](index, element);
          index = dart.notNull(index) + 1;
        }
      }
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (List[dart.mixinNew] = function() {
    }).prototype = List.prototype;
    dart.addRtiResources(List, ["core|List", "core|Iterable", "core|_ListIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setStaticMethodSignature(List, () => ['filled', 'empty', 'from', 'of', 'generate', 'unmodifiable', 'castFrom', 'copyRange', 'writeIterable']);
    dart.setLibraryUri(List, I[11]);
    return List;
  });
  core.List = core.List$();
  core.Map$ = dart.generic((K, V) => {
    class Map extends core.Object {
      static ['_#new#tearOff'](K, V) {
        return new (_js_helper.LinkedMap$(K, V)).new();
      }
      static ['_#from#tearOff'](K, V, other) {
        if (other == null) dart.nullFailed(I[191], 60, 24, "other");
        return collection.LinkedHashMap$(K, V).from(other);
      }
      static ['_#of#tearOff'](K, V, other) {
        if (other == null) dart.nullFailed(I[191], 72, 28, "other");
        return collection.LinkedHashMap$(K, V).of(other);
      }
      static ['_#unmodifiable#tearOff'](K, V, other) {
        if (other == null) dart.nullFailed(I[9], 375, 50, "other");
        return core.Map$(K, V).unmodifiable(other);
      }
      static unmodifiable(other) {
        if (other == null) dart.nullFailed(I[9], 375, 50, "other");
        return new (collection.UnmodifiableMapView$(K, V)).new(collection.LinkedHashMap$(K, V).from(other));
      }
      static ['_#identity#tearOff'](K, V) {
        return new (_js_helper.IdentityMap$(K, V)).new();
      }
      static ['_#fromIterable#tearOff'](K, V, iterable, opts) {
        if (iterable == null) dart.nullFailed(I[191], 145, 37, "iterable");
        let key = opts && 'key' in opts ? opts.key : null;
        let value = opts && 'value' in opts ? opts.value : null;
        return collection.LinkedHashMap$(K, V).fromIterable(iterable, {key: key, value: value});
      }
      static ['_#fromIterables#tearOff'](K, V, keys, values) {
        if (keys == null) dart.nullFailed(I[191], 168, 41, "keys");
        if (values == null) dart.nullFailed(I[191], 168, 59, "values");
        return collection.LinkedHashMap$(K, V).fromIterables(keys, values);
      }
      static castFrom(K, V, K2, V2, source) {
        if (source == null) dart.nullFailed(I[191], 188, 55, "source");
        return new (_internal.CastMap$(K, V, K2, V2)).new(source);
      }
      static fromEntries(entries) {
        let t$36380;
        if (entries == null) dart.nullFailed(I[191], 209, 52, "entries");
        t$36380 = new (_js_helper.LinkedMap$(K, V)).new();
        return (() => {
          t$36380[$addEntries](entries);
          return t$36380;
        })();
      }
      static ['_#fromEntries#tearOff'](K, V, entries) {
        if (entries == null) dart.nullFailed(I[191], 209, 52, "entries");
        return core.Map$(K, V).fromEntries(entries);
      }
    }
    (Map[dart.mixinNew] = function() {
    }).prototype = Map.prototype;
    dart.addRtiResources(Map, ["core|Map"]);
    dart.setStaticMethodSignature(Map, () => ['new', 'from', 'of', 'unmodifiable', 'identity', 'fromIterable', 'fromIterables', 'castFrom', 'fromEntries']);
    dart.setLibraryUri(Map, I[11]);
    return Map;
  });
  core.Map = core.Map$();
  var key$0 = dart.privateName(core, "MapEntry.key");
  var value$3 = dart.privateName(core, "MapEntry.value");
  core.MapEntry$ = dart.generic((K, V) => {
    var __t$MapEntryOfK$V = () => (__t$MapEntryOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|MapEntry<1,2>")))();
    class MapEntry extends core.Object {
      get key() {
        return this[key$0];
      }
      set key(value) {
        super.key = value;
      }
      get value() {
        return this[value$3];
      }
      set value(value) {
        super.value = value;
      }
      static ['_#new#tearOff'](K, V, key, value) {
        return new (core.MapEntry$(K, V)).__(key, value);
      }
      static ['_#_#tearOff'](K, V, key, value) {
        return new (core.MapEntry$(K, V)).__(key, value);
      }
      toString() {
        return "MapEntry(" + dart.str(this.key) + ": " + dart.str(this.value) + ")";
      }
    }
    (MapEntry.__ = function(key, value) {
      this[key$0] = key;
      this[value$3] = value;
      this.$ti = this.$ti || __t$MapEntryOfK$V();
      ;
    }).prototype = MapEntry.prototype;
    dart.addRtiResources(MapEntry, ["core|MapEntry"]);
    dart.setStaticMethodSignature(MapEntry, () => ['new']);
    dart.setLibraryUri(MapEntry, I[11]);
    dart.setFieldSignature(MapEntry, () => dart.global.Object.setPrototypeOf({
      key: {type: K, isConst: false, isFinal: true},
      value: {type: V, isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(MapEntry))));
    dart.defineExtensionMethods(MapEntry, ['toString']);
    return MapEntry;
  });
  core.MapEntry = core.MapEntry$();
  core.Null = class Null extends core.Object {
    static ['_#_uninstantiable#tearOff']() {
      return core.Null._uninstantiable();
    }
    get hashCode() {
      return super[$hashCode];
    }
    toString() {
      return "null";
    }
  };
  (core.Null[dart.mixinNew] = function() {
  }).prototype = core.Null.prototype;
  dart.addRtiResources(core.Null, ["core|Null"]);
  dart.setStaticMethodSignature(core.Null, () => ['_uninstantiable']);
  dart.setLibraryUri(core.Null, I[11]);
  dart.defineExtensionMethods(core.Null, ['toString']);
  dart.defineExtensionAccessors(core.Null, ['hashCode']);
  core.Pattern = class Pattern extends core.Object {};
  (core.Pattern.new = function() {
    ;
  }).prototype = core.Pattern.prototype;
  dart.addRtiResources(core.Pattern, ["core|Pattern"]);
  dart.setLibraryUri(core.Pattern, I[11]);
  core.Match = class Match extends core.Object {};
  (core.Match.new = function() {
    ;
  }).prototype = core.Match.prototype;
  dart.addRtiResources(core.Match, ["core|Match"]);
  dart.setLibraryUri(core.Match, I[11]);
  core.Record = class Record extends core.Object {};
  (core.Record.new = function() {
    ;
  }).prototype = core.Record.prototype;
  dart.addRtiResources(core.Record, ["core|Record"]);
  dart.setLibraryUri(core.Record, I[11]);
  core.RegExp = class RegExp extends core.Object {
    static new(source, opts) {
      if (source == null) dart.nullFailed(I[9], 484, 25, "source");
      let multiLine = opts && 'multiLine' in opts ? opts.multiLine : false;
      if (multiLine == null) dart.nullFailed(I[9], 485, 17, "multiLine");
      let caseSensitive = opts && 'caseSensitive' in opts ? opts.caseSensitive : true;
      if (caseSensitive == null) dart.nullFailed(I[9], 486, 16, "caseSensitive");
      let unicode = opts && 'unicode' in opts ? opts.unicode : false;
      if (unicode == null) dart.nullFailed(I[9], 487, 16, "unicode");
      let dotAll = opts && 'dotAll' in opts ? opts.dotAll : false;
      if (dotAll == null) dart.nullFailed(I[9], 488, 16, "dotAll");
      return new _js_helper.JSSyntaxRegExp.new(source, {multiLine: multiLine, caseSensitive: caseSensitive, unicode: unicode, dotAll: dotAll});
    }
    static ['_#new#tearOff'](source, opts) {
      if (source == null) dart.nullFailed(I[9], 484, 25, "source");
      let multiLine = opts && 'multiLine' in opts ? opts.multiLine : false;
      if (multiLine == null) dart.nullFailed(I[9], 485, 17, "multiLine");
      let caseSensitive = opts && 'caseSensitive' in opts ? opts.caseSensitive : true;
      if (caseSensitive == null) dart.nullFailed(I[9], 486, 16, "caseSensitive");
      let unicode = opts && 'unicode' in opts ? opts.unicode : false;
      if (unicode == null) dart.nullFailed(I[9], 487, 16, "unicode");
      let dotAll = opts && 'dotAll' in opts ? opts.dotAll : false;
      if (dotAll == null) dart.nullFailed(I[9], 488, 16, "dotAll");
      return core.RegExp.new(source, {multiLine: multiLine, caseSensitive: caseSensitive, unicode: unicode, dotAll: dotAll});
    }
    static escape(text) {
      if (text == null) dart.nullFailed(I[9], 496, 31, "text");
      return _js_helper.quoteStringForRegExp(text);
    }
  };
  (core.RegExp[dart.mixinNew] = function() {
  }).prototype = core.RegExp.prototype;
  dart.addRtiResources(core.RegExp, ["core|RegExp", "core|Pattern"]);
  dart.setStaticMethodSignature(core.RegExp, () => ['new', 'escape']);
  dart.setLibraryUri(core.RegExp, I[11]);
  core.RegExpMatch = class RegExpMatch extends core.Object {};
  (core.RegExpMatch.new = function() {
    ;
  }).prototype = core.RegExpMatch.prototype;
  dart.addRtiResources(core.RegExpMatch, ["core|RegExpMatch", "core|Match"]);
  dart.setLibraryUri(core.RegExpMatch, I[11]);
  core._SetIterable$ = dart.generic(E => {
    var __t$_SetIterableOfE = () => (__t$_SetIterableOfE = dart.constFn(E[_eval]("core|_SetIterable<0>")))();
    class _SetIterable extends core.Object {
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (_SetIterable.new = function() {
      this.$ti = this.$ti || __t$_SetIterableOfE();
      ;
    }).prototype = _SetIterable.prototype;
    dart.addRtiResources(_SetIterable, ["core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setLibraryUri(_SetIterable, I[11]);
    return _SetIterable;
  });
  core._SetIterable = core._SetIterable$();
  core.Set$ = dart.generic(E => {
    class Set extends core.Object {
      static ['_#new#tearOff'](E) {
        return new (collection._HashSet$(E)).new();
      }
      static ['_#identity#tearOff'](E) {
        return new (collection._IdentityHashSet$(E)).new();
      }
      static ['_#from#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[192], 82, 29, "elements");
        return collection.LinkedHashSet$(E).from(elements);
      }
      static ['_#of#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[192], 97, 30, "elements");
        return collection.LinkedHashSet$(E).of(elements);
      }
      static unmodifiable(elements) {
        if (elements == null) dart.nullFailed(I[192], 108, 40, "elements");
        return new (collection.UnmodifiableSetView$(E)).new((() => {
          let t$36380 = collection.LinkedHashSet$(E).of(elements);
          return t$36380;
        })());
      }
      static ['_#unmodifiable#tearOff'](E, elements) {
        if (elements == null) dart.nullFailed(I[192], 108, 40, "elements");
        return core.Set$(E).unmodifiable(elements);
      }
      static castFrom(S, T, source, opts) {
        if (source == null) dart.nullFailed(I[192], 134, 39, "source");
        let newSet = opts && 'newSet' in opts ? opts.newSet : null;
        return new (_internal.CastSet$(S, T)).new(source, newSet);
      }
      [Symbol.iterator]() {
        return new dart.JsIterator(this[$iterator]);
      }
    }
    (Set[dart.mixinNew] = function() {
    }).prototype = Set.prototype;
    dart.addRtiResources(Set, ["core|Set", "core|Iterable", "core|_SetIterable", "_internal|EfficientLengthIterable", "_internal|HideEfficientLengthIterable", "core|Iterable", "core|Iterable"]);
    dart.setStaticMethodSignature(Set, () => ['new', 'identity', 'from', 'of', 'unmodifiable', 'castFrom']);
    dart.setLibraryUri(Set, I[11]);
    return Set;
  });
  core.Set = core.Set$();
  core.Sink$ = dart.generic(T => {
    var __t$SinkOfT = () => (__t$SinkOfT = dart.constFn(T[_eval]("core|Sink<0>")))();
    class Sink extends core.Object {}
    (Sink.new = function() {
      this.$ti = this.$ti || __t$SinkOfT();
      ;
    }).prototype = Sink.prototype;
    dart.addRtiResources(Sink, ["core|Sink"]);
    dart.setLibraryUri(Sink, I[11]);
    return Sink;
  });
  core.Sink = core.Sink$();
  var _StringStackTrace__stackTrace = dart.privateName(core, "_StringStackTrace._stackTrace");
  core.StackTrace = class StackTrace extends core.Object {
    static ['_#fromString#tearOff'](stackTraceString) {
      if (stackTraceString == null) dart.nullFailed(I[193], 34, 40, "stackTraceString");
      return new core._StringStackTrace.new(stackTraceString);
    }
    static get current() {
      return dart.stackTrace(Error());
    }
  };
  (core.StackTrace.new = function() {
    ;
  }).prototype = core.StackTrace.prototype;
  dart.addRtiResources(core.StackTrace, ["core|StackTrace"]);
  dart.setStaticMethodSignature(core.StackTrace, () => ['fromString']);
  dart.setStaticGetterSignature(core.StackTrace, () => ['current']);
  dart.setLibraryUri(core.StackTrace, I[11]);
  dart.setStaticFieldSignature(core.StackTrace, () => ['empty']);
  dart.defineLazy(core.StackTrace, {
    /*core.StackTrace.empty*/get empty() {
      return C[477] || CT.C477;
    }
  }, false);
  var _stackTrace = dart.privateName(core, "_stackTrace");
  const _stackTrace$ = _StringStackTrace__stackTrace;
  core._StringStackTrace = class _StringStackTrace extends core.Object {
    get [_stackTrace]() {
      return this[_stackTrace$];
    }
    set [_stackTrace](value) {
      super[_stackTrace] = value;
    }
    static ['_#new#tearOff'](_stackTrace) {
      if (_stackTrace == null) dart.nullFailed(I[193], 56, 32, "_stackTrace");
      return new core._StringStackTrace.new(_stackTrace);
    }
    toString() {
      return this[_stackTrace];
    }
  };
  (core._StringStackTrace.new = function(_stackTrace) {
    if (_stackTrace == null) dart.nullFailed(I[193], 56, 32, "_stackTrace");
    this[_stackTrace$] = _stackTrace;
    ;
  }).prototype = core._StringStackTrace.prototype;
  dart.addRtiResources(core._StringStackTrace, ["core|_StringStackTrace", "core|StackTrace"]);
  dart.setLibraryUri(core._StringStackTrace, I[11]);
  dart.setFieldSignature(core._StringStackTrace, () => dart.global.Object.setPrototypeOf({[_stackTrace]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core._StringStackTrace))));
  dart.defineExtensionMethods(core._StringStackTrace, ['toString']);
  var _start$3 = dart.privateName(core, "_start");
  var _stop = dart.privateName(core, "_stop");
  core.Stopwatch = class Stopwatch extends core.Object {
    static ['_#new#tearOff']() {
      return new core.Stopwatch.new();
    }
    get frequency() {
      return core.Stopwatch._frequency;
    }
    start() {
      let stop = this[_stop];
      if (stop != null) {
        this[_start$3] = dart.notNull(this[_start$3]) + (dart.notNull(core.Stopwatch._now()) - dart.notNull(stop));
        this[_stop] = null;
      }
    }
    stop() {
      this[_stop] == null ? this[_stop] = core.Stopwatch._now() : null;
    }
    reset() {
      let t$36381;
      this[_start$3] = (t$36381 = this[_stop], t$36381 == null ? core.Stopwatch._now() : t$36381);
    }
    get elapsedTicks() {
      let t$36381;
      return dart.notNull((t$36381 = this[_stop], t$36381 == null ? core.Stopwatch._now() : t$36381)) - dart.notNull(this[_start$3]);
    }
    get elapsed() {
      return new core.Duration.new({microseconds: this.elapsedMicroseconds});
    }
    get elapsedMicroseconds() {
      let ticks = this.elapsedTicks;
      if (core.Stopwatch._frequency === 1000000) return ticks;
      if (!(core.Stopwatch._frequency === 1000)) dart.assertFailed(null, I[9], 286, 12, "_frequency == 1000");
      return dart.notNull(ticks) * 1000;
    }
    get elapsedMilliseconds() {
      let ticks = this.elapsedTicks;
      if (core.Stopwatch._frequency === 1000) return ticks;
      if (!(core.Stopwatch._frequency === 1000000)) dart.assertFailed(null, I[9], 294, 12, "_frequency == 1000000");
      return (dart.notNull(ticks) / 1000)[$truncate]();
    }
    get isRunning() {
      return this[_stop] == null;
    }
    static _initTicker() {
      _js_helper.Primitives.initTicker();
      return _js_helper.Primitives.timerFrequency;
    }
    static _now() {
      return _js_helper.Primitives.timerTicks();
    }
  };
  (core.Stopwatch.new = function() {
    this[_start$3] = 0;
    this[_stop] = 0;
    core.Stopwatch._frequency;
  }).prototype = core.Stopwatch.prototype;
  dart.addRtiResources(core.Stopwatch, ["core|Stopwatch"]);
  dart.setMethodSignature(core.Stopwatch, () => dart.global.Object.setPrototypeOf({
    start: T$.VoidTovoid(),
    stop: T$.VoidTovoid(),
    reset: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core.Stopwatch))));
  dart.setStaticMethodSignature(core.Stopwatch, () => ['_initTicker', '_now']);
  dart.setGetterSignature(core.Stopwatch, () => dart.global.Object.setPrototypeOf({
    frequency: T$.int(),
    elapsedTicks: T$.int(),
    elapsed: T$8.Duration(),
    elapsedMicroseconds: T$.int(),
    elapsedMilliseconds: T$.int(),
    isRunning: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.Stopwatch))));
  dart.setLibraryUri(core.Stopwatch, I[11]);
  dart.setFieldSignature(core.Stopwatch, () => dart.global.Object.setPrototypeOf({
    [_start$3]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_stop]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.Stopwatch))));
  dart.setStaticFieldSignature(core.Stopwatch, () => ['_frequency']);
  dart.defineLazy(core.Stopwatch, {
    /*core.Stopwatch._frequency*/get _frequency() {
      return core.Stopwatch._initTicker();
    }
  }, false);
  core.String = class String extends core.Object {
    static _stringFromJSArray(list, start, endOrNull) {
      let t$36381;
      if (list == null) dart.nullFailed(I[9], 420, 20, "list");
      if (start == null) dart.nullFailed(I[9], 420, 30, "start");
      let len = list[$length];
      let end = (t$36381 = endOrNull, t$36381 == null ? len : t$36381);
      if (dart.notNull(start) > 0 || dart.notNull(end) < len) {
        list = list.slice(start, end);
      }
      return _js_helper.Primitives.stringFromCharCodes(list);
    }
    static _stringFromUint8List(charCodes, start, endOrNull) {
      if (charCodes == null) dart.nullFailed(I[9], 434, 23, "charCodes");
      if (start == null) dart.nullFailed(I[9], 434, 38, "start");
      let len = charCodes[$length];
      if (dart.notNull(start) >= dart.notNull(len)) return "";
      let end = endOrNull == null || dart.notNull(endOrNull) > dart.notNull(len) ? len : endOrNull;
      return _js_helper.Primitives.stringFromNativeUint8List(charCodes, start, end);
    }
    static _stringFromIterable(charCodes, start, end) {
      if (charCodes == null) dart.nullFailed(I[9], 442, 21, "charCodes");
      if (start == null) dart.nullFailed(I[9], 442, 36, "start");
      if (end != null) charCodes = charCodes[$take](end);
      if (dart.notNull(start) > 0) charCodes = charCodes[$skip](start);
      let list = G$.ListOfint().of(charCodes);
      let asJSArray = list;
      return _js_helper.Primitives.stringFromCharCodes(asJSArray);
    }
    static fromCharCodes(charCodes, start = 0, end = null) {
      if (charCodes == null) dart.nullFailed(I[9], 386, 46, "charCodes");
      if (start == null) dart.nullFailed(I[9], 387, 12, "start");
      core.RangeError.checkNotNegative(start, "start");
      if (end != null) {
        let maxLength = dart.notNull(end) - dart.notNull(start);
        if (maxLength < 0) {
          dart.throw(new core.RangeError.range(end, start, null, "end"));
        }
        if (maxLength === 0) {
          return "";
        }
      }
      if (T$8.JSArrayOfint()[_is](charCodes)) {
        return core.String._stringFromJSArray(charCodes, start, end);
      }
      if (T$3.NativeUint8List()[_is](charCodes)) {
        return core.String._stringFromUint8List(charCodes, start, end);
      }
      return core.String._stringFromIterable(charCodes, start, end);
    }
    static ['_#fromCharCodes#tearOff'](charCodes, start = 0, end = null) {
      if (charCodes == null) dart.nullFailed(I[9], 386, 46, "charCodes");
      if (start == null) dart.nullFailed(I[9], 387, 12, "start");
      return core.String.fromCharCodes(charCodes, start, end);
    }
    static ['_#fromCharCode#tearOff'](charCode) {
      if (charCode == null) dart.nullFailed(I[9], 408, 35, "charCode");
      return core.String.fromCharCode(charCode);
    }
    static fromCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[9], 408, 35, "charCode");
      return _js_helper.Primitives.stringFromCharCode(charCode);
    }
    static ['_#fromEnvironment#tearOff'](name, opts) {
      if (name == null) dart.nullFailed(I[9], 413, 41, "name");
      let defaultValue = opts && 'defaultValue' in opts ? opts.defaultValue : "";
      if (defaultValue == null) dart.nullFailed(I[9], 413, 55, "defaultValue");
      return core.String.fromEnvironment(name, {defaultValue: defaultValue});
    }
    static fromEnvironment(name, opts) {
      if (name == null) dart.nullFailed(I[9], 413, 41, "name");
      let defaultValue = opts && 'defaultValue' in opts ? opts.defaultValue : "";
      if (defaultValue == null) dart.nullFailed(I[9], 413, 55, "defaultValue");
      dart.throw(new core.UnsupportedError.new("String.fromEnvironment can only be used as a const constructor"));
    }
  };
  (core.String[dart.mixinNew] = function() {
  }).prototype = core.String.prototype;
  dart.addRtiResources(core.String, ["core|String", "core|Comparable", "core|Pattern"]);
  dart.setStaticMethodSignature(core.String, () => ['_stringFromJSArray', '_stringFromUint8List', '_stringFromIterable', 'fromCharCodes', 'fromCharCode', 'fromEnvironment']);
  dart.setLibraryUri(core.String, I[11]);
  var string$ = dart.privateName(core, "Runes.string");
  core.Runes = class Runes extends G$.IterableOfint() {
    get string() {
      return this[string$];
    }
    set string(value) {
      super.string = value;
    }
    static ['_#new#tearOff'](string) {
      if (string == null) dart.nullFailed(I[194], 778, 14, "string");
      return new core.Runes.new(string);
    }
    get iterator() {
      return new core.RuneIterator.new(this.string);
    }
    get last() {
      if (this.string.length === 0) {
        dart.throw(new core.StateError.new("No elements."));
      }
      let length = this.string.length;
      let code = this.string[$codeUnitAt](length - 1);
      if (dart.test(core._isTrailSurrogate(code)) && this.string.length > 1) {
        let previousCode = this.string[$codeUnitAt](length - 2);
        if (dart.test(core._isLeadSurrogate(previousCode))) {
          return core._combineSurrogatePair(previousCode, code);
        }
      }
      return code;
    }
  };
  (core.Runes.new = function(string) {
    if (string == null) dart.nullFailed(I[194], 778, 14, "string");
    this[string$] = string;
    this.$ti = this.$ti || T$.Runes();
    dart.global.Object.getPrototypeOf(core.Runes).new.call(this);
    ;
  }).prototype = core.Runes.prototype;
  dart.addRtiResources(core.Runes, ["core|Runes"]);
  dart.setGetterSignature(core.Runes, () => dart.global.Object.setPrototypeOf({
    iterator: T$8.RuneIterator(),
    [$iterator]: T$8.RuneIterator()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.Runes))));
  dart.setLibraryUri(core.Runes, I[11]);
  dart.setFieldSignature(core.Runes, () => dart.global.Object.setPrototypeOf({string: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core.Runes))));
  dart.defineExtensionAccessors(core.Runes, ['iterator', 'last']);
  var string$0 = dart.privateName(core, "RuneIterator.string");
  var _currentCodePoint = dart.privateName(core, "_currentCodePoint");
  var _position$0 = dart.privateName(core, "_position");
  var _nextPosition = dart.privateName(core, "_nextPosition");
  var _checkSplitSurrogate = dart.privateName(core, "_checkSplitSurrogate");
  core.RuneIterator = class RuneIterator extends core.Object {
    get string() {
      return this[string$0];
    }
    set string(value) {
      super.string = value;
    }
    static ['_#new#tearOff'](string) {
      if (string == null) dart.nullFailed(I[194], 827, 23, "string");
      return new core.RuneIterator.new(string);
    }
    static ['_#at#tearOff'](string, index) {
      if (string == null) dart.nullFailed(I[194], 840, 26, "string");
      if (index == null) dart.nullFailed(I[194], 840, 38, "index");
      return new core.RuneIterator.at(string, index);
    }
    [_checkSplitSurrogate](index) {
      if (index == null) dart.nullFailed(I[194], 849, 33, "index");
      if (dart.notNull(index) > 0 && dart.notNull(index) < this.string.length && dart.test(core._isLeadSurrogate(this.string[$codeUnitAt](dart.notNull(index) - 1))) && dart.test(core._isTrailSurrogate(this.string[$codeUnitAt](index)))) {
        dart.throw(new core.ArgumentError.new("Index inside surrogate pair: " + dart.str(index)));
      }
    }
    get rawIndex() {
      return this[_position$0] != this[_nextPosition] ? this[_position$0] : -1;
    }
    set rawIndex(rawIndex) {
      if (rawIndex == null) dart.nullFailed(I[194], 871, 25, "rawIndex");
      core.IndexError.check(rawIndex, this.string.length, {indexable: this.string, name: "rawIndex"});
      this.reset(rawIndex);
      this.moveNext();
    }
    reset(rawIndex = 0) {
      if (rawIndex == null) dart.nullFailed(I[194], 887, 19, "rawIndex");
      core.RangeError.checkValueInInterval(rawIndex, 0, this.string.length, "rawIndex");
      this[_checkSplitSurrogate](rawIndex);
      this[_position$0] = this[_nextPosition] = rawIndex;
      this[_currentCodePoint] = -1;
    }
    get current() {
      return this[_currentCodePoint];
    }
    get currentSize() {
      return dart.notNull(this[_nextPosition]) - dart.notNull(this[_position$0]);
    }
    get currentAsString() {
      if (this[_position$0] == this[_nextPosition]) return "";
      if (dart.notNull(this[_position$0]) + 1 === this[_nextPosition]) return this.string[$_get](this[_position$0]);
      return this.string[$substring](this[_position$0], this[_nextPosition]);
    }
    moveNext() {
      this[_position$0] = this[_nextPosition];
      if (this[_position$0] === this.string.length) {
        this[_currentCodePoint] = -1;
        return false;
      }
      let codeUnit = this.string[$codeUnitAt](this[_position$0]);
      let nextPosition = dart.notNull(this[_position$0]) + 1;
      if (dart.test(core._isLeadSurrogate(codeUnit)) && nextPosition < this.string.length) {
        let nextCodeUnit = this.string[$codeUnitAt](nextPosition);
        if (dart.test(core._isTrailSurrogate(nextCodeUnit))) {
          this[_nextPosition] = nextPosition + 1;
          this[_currentCodePoint] = core._combineSurrogatePair(codeUnit, nextCodeUnit);
          return true;
        }
      }
      this[_nextPosition] = nextPosition;
      this[_currentCodePoint] = codeUnit;
      return true;
    }
    movePrevious() {
      this[_nextPosition] = this[_position$0];
      if (this[_position$0] === 0) {
        this[_currentCodePoint] = -1;
        return false;
      }
      let position = dart.notNull(this[_position$0]) - 1;
      let codeUnit = this.string[$codeUnitAt](position);
      if (dart.test(core._isTrailSurrogate(codeUnit)) && position > 0) {
        let prevCodeUnit = this.string[$codeUnitAt](position - 1);
        if (dart.test(core._isLeadSurrogate(prevCodeUnit))) {
          this[_position$0] = position - 1;
          this[_currentCodePoint] = core._combineSurrogatePair(prevCodeUnit, codeUnit);
          return true;
        }
      }
      this[_position$0] = position;
      this[_currentCodePoint] = codeUnit;
      return true;
    }
  };
  (core.RuneIterator.new = function(string) {
    if (string == null) dart.nullFailed(I[194], 827, 23, "string");
    this[_currentCodePoint] = -1;
    this[string$0] = string;
    this[_position$0] = 0;
    this[_nextPosition] = 0;
    ;
  }).prototype = core.RuneIterator.prototype;
  (core.RuneIterator.at = function(string, index) {
    if (string == null) dart.nullFailed(I[194], 840, 26, "string");
    if (index == null) dart.nullFailed(I[194], 840, 38, "index");
    this[_currentCodePoint] = -1;
    this[string$0] = string;
    this[_position$0] = index;
    this[_nextPosition] = index;
    core.RangeError.checkValueInInterval(index, 0, string.length);
    this[_checkSplitSurrogate](index);
  }).prototype = core.RuneIterator.prototype;
  dart.addRtiResources(core.RuneIterator, ["core|RuneIterator", "core|Iterator"]);
  dart.setMethodSignature(core.RuneIterator, () => dart.global.Object.setPrototypeOf({
    [_checkSplitSurrogate]: T$.intTovoid(),
    reset: T$8.intTovoid$1(),
    moveNext: T$.VoidTobool(),
    movePrevious: T$.VoidTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core.RuneIterator))));
  dart.setGetterSignature(core.RuneIterator, () => dart.global.Object.setPrototypeOf({
    rawIndex: T$.int(),
    current: T$.int(),
    currentSize: T$.int(),
    currentAsString: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.RuneIterator))));
  dart.setSetterSignature(core.RuneIterator, () => dart.global.Object.setPrototypeOf({rawIndex: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(core.RuneIterator))));
  dart.setLibraryUri(core.RuneIterator, I[11]);
  dart.setFieldSignature(core.RuneIterator, () => dart.global.Object.setPrototypeOf({
    string: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_position$0]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_nextPosition]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentCodePoint]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.RuneIterator))));
  var _contents = dart.privateName(core, "_contents");
  var _writeString = dart.privateName(core, "_writeString");
  core.StringBuffer = class StringBuffer extends core.Object {
    [_writeString](str) {
      this[_contents] = this[_contents] + str;
    }
    static _writeAll(string, objects, separator) {
      if (string == null) dart.nullFailed(I[9], 547, 34, "string");
      if (objects == null) dart.nullFailed(I[9], 547, 51, "objects");
      if (separator == null) dart.nullFailed(I[9], 547, 67, "separator");
      let iterator = objects[$iterator];
      if (!dart.test(iterator.moveNext())) return string;
      if (separator[$isEmpty]) {
        do {
          string = core.StringBuffer._writeOne(string, iterator.current);
        } while (dart.test(iterator.moveNext()));
      } else {
        string = core.StringBuffer._writeOne(string, iterator.current);
        while (dart.test(iterator.moveNext())) {
          string = core.StringBuffer._writeOne(string, separator);
          string = core.StringBuffer._writeOne(string, iterator.current);
        }
      }
      return string;
    }
    static _writeOne(string, obj) {
      return string + dart.str(obj);
    }
    static ['_#new#tearOff'](content = "") {
      if (content == null) dart.nullFailed(I[9], 510, 24, "content");
      return new core.StringBuffer.new(content);
    }
    get length() {
      return this[_contents].length;
    }
    get isEmpty() {
      return this.length === 0;
    }
    get isNotEmpty() {
      return !dart.test(this.isEmpty);
    }
    write(obj) {
      this[_writeString](dart.str(obj));
    }
    writeCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[9], 521, 26, "charCode");
      this[_writeString](core.String.fromCharCode(charCode));
    }
    writeAll(objects, separator = "") {
      if (objects == null) dart.nullFailed(I[9], 526, 35, "objects");
      if (separator == null) dart.nullFailed(I[9], 526, 52, "separator");
      this[_contents] = core.StringBuffer._writeAll(this[_contents], objects, separator);
    }
    writeln(obj = "") {
      this[_writeString](dart.str(obj) + "\n");
    }
    clear() {
      this[_contents] = "";
    }
    toString() {
      return _js_helper.Primitives.flattenString(this[_contents]);
    }
  };
  (core.StringBuffer.new = function(content = "") {
    if (content == null) dart.nullFailed(I[9], 510, 24, "content");
    this[_contents] = dart.str(content);
    ;
  }).prototype = core.StringBuffer.prototype;
  dart.addRtiResources(core.StringBuffer, ["core|StringBuffer", "core|StringSink"]);
  dart.setMethodSignature(core.StringBuffer, () => dart.global.Object.setPrototypeOf({
    [_writeString]: T$.StringTovoid(),
    write: T$.ObjectNTovoid(),
    writeCharCode: T$.intTovoid(),
    writeAll: T$2.IterableAndStringTovoid(),
    writeln: T$0.ObjectNTovoid$1(),
    clear: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core.StringBuffer))));
  dart.setStaticMethodSignature(core.StringBuffer, () => ['_writeAll', '_writeOne']);
  dart.setGetterSignature(core.StringBuffer, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    isEmpty: T$.bool(),
    isNotEmpty: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.StringBuffer))));
  dart.setLibraryUri(core.StringBuffer, I[11]);
  dart.setFieldSignature(core.StringBuffer, () => dart.global.Object.setPrototypeOf({[_contents]: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core.StringBuffer))));
  dart.defineExtensionMethods(core.StringBuffer, ['toString']);
  core.StringSink = class StringSink extends core.Object {};
  (core.StringSink.new = function() {
    ;
  }).prototype = core.StringSink.prototype;
  dart.addRtiResources(core.StringSink, ["core|StringSink"]);
  dart.setLibraryUri(core.StringSink, I[11]);
  core.Symbol = class Symbol extends core.Object {
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[195], 62, 31, "name");
      return new _internal.Symbol.new(name);
    }
  };
  (core.Symbol[dart.mixinNew] = function() {
  }).prototype = core.Symbol.prototype;
  dart.addRtiResources(core.Symbol, ["core|Symbol"]);
  dart.setStaticMethodSignature(core.Symbol, () => ['new']);
  dart.setLibraryUri(core.Symbol, I[11]);
  dart.setStaticFieldSignature(core.Symbol, () => ['unaryMinus', 'empty']);
  dart.defineLazy(core.Symbol, {
    /*core.Symbol.unaryMinus*/get unaryMinus() {
      return C[478] || CT.C478;
    },
    /*core.Symbol.empty*/get empty() {
      return C[479] || CT.C479;
    }
  }, false);
  core.Type = class Type extends core.Object {};
  (core.Type.new = function() {
    ;
  }).prototype = core.Type.prototype;
  dart.addRtiResources(core.Type, ["core|Type"]);
  dart.setLibraryUri(core.Type, I[11]);
  core.Uri = class Uri extends core.Object {
    static get base() {
      let uri = _js_helper.Primitives.currentUri();
      if (uri != null) return core.Uri.parse(uri);
      dart.throw(new core.UnsupportedError.new("'Uri.base' is not supported"));
    }
    static ['_#new#tearOff'](opts) {
      let scheme = opts && 'scheme' in opts ? opts.scheme : null;
      let userInfo = opts && 'userInfo' in opts ? opts.userInfo : null;
      let host = opts && 'host' in opts ? opts.host : null;
      let port = opts && 'port' in opts ? opts.port : null;
      let path = opts && 'path' in opts ? opts.path : null;
      let pathSegments = opts && 'pathSegments' in opts ? opts.pathSegments : null;
      let query = opts && 'query' in opts ? opts.query : null;
      let queryParameters = opts && 'queryParameters' in opts ? opts.queryParameters : null;
      let fragment = opts && 'fragment' in opts ? opts.fragment : null;
      return core._Uri.new({scheme: scheme, userInfo: userInfo, host: host, port: port, path: path, pathSegments: pathSegments, query: query, queryParameters: queryParameters, fragment: fragment});
    }
    static ['_#http#tearOff'](authority, unencodedPath = "", queryParameters = null) {
      if (authority == null) dart.nullFailed(I[196], 248, 12, "authority");
      if (unencodedPath == null) dart.nullFailed(I[196], 249, 12, "unencodedPath");
      return core._Uri.http(authority, unencodedPath, queryParameters);
    }
    static ['_#https#tearOff'](authority, unencodedPath = "", queryParameters = null) {
      if (authority == null) dart.nullFailed(I[196], 272, 28, "authority");
      if (unencodedPath == null) dart.nullFailed(I[196], 273, 15, "unencodedPath");
      return core._Uri.https(authority, unencodedPath, queryParameters);
    }
    static ['_#file#tearOff'](path, opts) {
      if (path == null) dart.nullFailed(I[196], 355, 27, "path");
      let windows = opts && 'windows' in opts ? opts.windows : null;
      return core._Uri.file(path, {windows: windows});
    }
    static ['_#directory#tearOff'](path, opts) {
      if (path == null) dart.nullFailed(I[196], 372, 32, "path");
      let windows = opts && 'windows' in opts ? opts.windows : null;
      return core._Uri.directory(path, {windows: windows});
    }
    static ['_#dataFromString#tearOff'](content, opts) {
      if (content == null) dart.nullFailed(I[196], 410, 37, "content");
      let mimeType = opts && 'mimeType' in opts ? opts.mimeType : null;
      let encoding = opts && 'encoding' in opts ? opts.encoding : null;
      let parameters = opts && 'parameters' in opts ? opts.parameters : null;
      let base64 = opts && 'base64' in opts ? opts.base64 : false;
      if (base64 == null) dart.nullFailed(I[196], 414, 12, "base64");
      return core.Uri.dataFromString(content, {mimeType: mimeType, encoding: encoding, parameters: parameters, base64: base64});
    }
    static dataFromString(content, opts) {
      if (content == null) dart.nullFailed(I[196], 410, 37, "content");
      let mimeType = opts && 'mimeType' in opts ? opts.mimeType : null;
      let encoding = opts && 'encoding' in opts ? opts.encoding : null;
      let parameters = opts && 'parameters' in opts ? opts.parameters : null;
      let base64 = opts && 'base64' in opts ? opts.base64 : false;
      if (base64 == null) dart.nullFailed(I[196], 414, 12, "base64");
      let data = core.UriData.fromString(content, {mimeType: mimeType, encoding: encoding, parameters: parameters, base64: base64});
      return data.uri;
    }
    static dataFromBytes(bytes, opts) {
      if (bytes == null) dart.nullFailed(I[196], 443, 39, "bytes");
      let mimeType = opts && 'mimeType' in opts ? opts.mimeType : "application/octet-stream";
      if (mimeType == null) dart.nullFailed(I[196], 444, 15, "mimeType");
      let parameters = opts && 'parameters' in opts ? opts.parameters : null;
      let percentEncoded = opts && 'percentEncoded' in opts ? opts.percentEncoded : false;
      if (percentEncoded == null) dart.nullFailed(I[196], 446, 12, "percentEncoded");
      let data = core.UriData.fromBytes(bytes, {mimeType: mimeType, parameters: parameters, percentEncoded: percentEncoded});
      return data.uri;
    }
    static ['_#dataFromBytes#tearOff'](bytes, opts) {
      if (bytes == null) dart.nullFailed(I[196], 443, 39, "bytes");
      let mimeType = opts && 'mimeType' in opts ? opts.mimeType : "application/octet-stream";
      if (mimeType == null) dart.nullFailed(I[196], 444, 15, "mimeType");
      let parameters = opts && 'parameters' in opts ? opts.parameters : null;
      let percentEncoded = opts && 'percentEncoded' in opts ? opts.percentEncoded : false;
      if (percentEncoded == null) dart.nullFailed(I[196], 446, 12, "percentEncoded");
      return core.Uri.dataFromBytes(bytes, {mimeType: mimeType, parameters: parameters, percentEncoded: percentEncoded});
    }
    get hasScheme() {
      return this.scheme[$isNotEmpty];
    }
    static parse(uri, start = 0, end = null) {
      let t$36381;
      if (uri == null) dart.nullFailed(I[196], 843, 27, "uri");
      if (start == null) dart.nullFailed(I[196], 843, 37, "start");
      end == null ? end = uri.length : null;
      if (dart.notNull(end) >= dart.notNull(start) + 5) {
        let dataDelta = core._startsWithData(uri, start);
        if (dataDelta === 0) {
          if (dart.notNull(start) > 0 || dart.notNull(end) < uri.length) uri = uri[$substring](start, end);
          return core.UriData._parse(uri, 5, null).uri;
        } else if (dataDelta === 32) {
          return core.UriData._parse(uri[$substring](dart.notNull(start) + 5, end), 0, null).uri;
        }
      }
      let indices = G$.ListOfint().filled(8, 0, {growable: false});
      t$36381 = indices;
      (() => {
        t$36381[$_set](0, 0);
        t$36381[$_set](1, dart.notNull(start) - 1);
        t$36381[$_set](2, dart.notNull(start) - 1);
        t$36381[$_set](7, dart.notNull(start) - 1);
        t$36381[$_set](3, start);
        t$36381[$_set](4, start);
        t$36381[$_set](5, end);
        t$36381[$_set](6, end);
        return t$36381;
      })();
      let state = core._scan(uri, start, end, 0, indices);
      if (dart.notNull(state) >= 14) {
        indices[$_set](7, end);
      }
      let schemeEnd = indices[$_get](1);
      if (dart.notNull(schemeEnd) >= dart.notNull(start)) {
        state = core._scan(uri, start, schemeEnd, 20, indices);
        if (state === 20) {
          indices[$_set](7, schemeEnd);
        }
      }
      let hostStart = dart.notNull(indices[$_get](2)) + 1;
      let portStart = indices[$_get](3);
      let pathStart = indices[$_get](4);
      let queryStart = indices[$_get](5);
      let fragmentStart = indices[$_get](6);
      let scheme = null;
      if (dart.notNull(fragmentStart) < dart.notNull(queryStart)) queryStart = fragmentStart;
      if (dart.notNull(pathStart) < hostStart) {
        pathStart = queryStart;
      } else if (dart.notNull(pathStart) <= dart.notNull(schemeEnd)) {
        pathStart = dart.notNull(schemeEnd) + 1;
      }
      if (dart.notNull(portStart) < hostStart) portStart = pathStart;
      if (!(hostStart === start || dart.notNull(schemeEnd) <= hostStart)) dart.assertFailed(null, I[196], 982, 12, "hostStart == start || schemeEnd <= hostStart");
      if (!(hostStart <= dart.notNull(portStart))) dart.assertFailed(null, I[196], 983, 12, "hostStart <= portStart");
      if (!(dart.notNull(schemeEnd) <= dart.notNull(pathStart))) dart.assertFailed(null, I[196], 984, 12, "schemeEnd <= pathStart");
      if (!(dart.notNull(portStart) <= dart.notNull(pathStart))) dart.assertFailed(null, I[196], 985, 12, "portStart <= pathStart");
      if (!(dart.notNull(pathStart) <= dart.notNull(queryStart))) dart.assertFailed(null, I[196], 986, 12, "pathStart <= queryStart");
      if (!(dart.notNull(queryStart) <= dart.notNull(fragmentStart))) dart.assertFailed(null, I[196], 987, 12, "queryStart <= fragmentStart");
      let isSimple = dart.notNull(indices[$_get](7)) < dart.notNull(start);
      if (isSimple) {
        if (hostStart > dart.notNull(schemeEnd) + 3) {
          isSimple = false;
        } else if (dart.notNull(portStart) > dart.notNull(start) && dart.notNull(portStart) + 1 === pathStart) {
          isSimple = false;
        } else if (uri[$startsWith]("\\", pathStart) || hostStart > dart.notNull(start) && (uri[$startsWith]("\\", hostStart - 1) || uri[$startsWith]("\\", hostStart - 2))) {
          isSimple = false;
        } else if (dart.notNull(queryStart) < dart.notNull(end) && queryStart === dart.notNull(pathStart) + 2 && uri[$startsWith]("..", pathStart) || dart.notNull(queryStart) > dart.notNull(pathStart) + 2 && uri[$startsWith]("/..", dart.notNull(queryStart) - 3)) {
          isSimple = false;
        } else {
          if (schemeEnd === dart.notNull(start) + 4) {
            if (uri[$startsWith]("file", start)) {
              scheme = "file";
              if (hostStart <= dart.notNull(start)) {
                let schemeAuth = "file://";
                let delta = 2;
                if (!uri[$startsWith]("/", pathStart)) {
                  schemeAuth = "file:///";
                  delta = 3;
                }
                uri = schemeAuth + uri[$substring](pathStart, end);
                schemeEnd = dart.notNull(schemeEnd) - dart.notNull(start);
                hostStart = 7;
                portStart = 7;
                pathStart = 7;
                queryStart = dart.notNull(queryStart) + (delta - dart.notNull(start));
                fragmentStart = dart.notNull(fragmentStart) + (delta - dart.notNull(start));
                start = 0;
                end = uri.length;
              } else if (pathStart == queryStart) {
                if (start === 0 && end === uri.length) {
                  uri = uri[$replaceRange](pathStart, queryStart, "/");
                  queryStart = dart.notNull(queryStart) + 1;
                  fragmentStart = dart.notNull(fragmentStart) + 1;
                  end = dart.notNull(end) + 1;
                } else {
                  uri = uri[$substring](start, pathStart) + "/" + uri[$substring](queryStart, end);
                  schemeEnd = dart.notNull(schemeEnd) - dart.notNull(start);
                  hostStart = hostStart - dart.notNull(start);
                  portStart = dart.notNull(portStart) - dart.notNull(start);
                  pathStart = dart.notNull(pathStart) - dart.notNull(start);
                  queryStart = dart.notNull(queryStart) + (1 - dart.notNull(start));
                  fragmentStart = dart.notNull(fragmentStart) + (1 - dart.notNull(start));
                  start = 0;
                  end = uri.length;
                }
              }
            } else if (uri[$startsWith]("http", start)) {
              scheme = "http";
              if (dart.notNull(portStart) > dart.notNull(start) && dart.notNull(portStart) + 3 === pathStart && uri[$startsWith]("80", dart.notNull(portStart) + 1)) {
                if (start === 0 && end === uri.length) {
                  uri = uri[$replaceRange](portStart, pathStart, "");
                  pathStart = dart.notNull(pathStart) - 3;
                  queryStart = dart.notNull(queryStart) - 3;
                  fragmentStart = dart.notNull(fragmentStart) - 3;
                  end = dart.notNull(end) - 3;
                } else {
                  uri = uri[$substring](start, portStart) + uri[$substring](pathStart, end);
                  schemeEnd = dart.notNull(schemeEnd) - dart.notNull(start);
                  hostStart = hostStart - dart.notNull(start);
                  portStart = dart.notNull(portStart) - dart.notNull(start);
                  pathStart = dart.notNull(pathStart) - (3 + dart.notNull(start));
                  queryStart = dart.notNull(queryStart) - (3 + dart.notNull(start));
                  fragmentStart = dart.notNull(fragmentStart) - (3 + dart.notNull(start));
                  start = 0;
                  end = uri.length;
                }
              }
            }
          } else if (schemeEnd === dart.notNull(start) + 5 && uri[$startsWith]("https", start)) {
            scheme = "https";
            if (dart.notNull(portStart) > dart.notNull(start) && dart.notNull(portStart) + 4 === pathStart && uri[$startsWith]("443", dart.notNull(portStart) + 1)) {
              if (start === 0 && end === uri.length) {
                uri = uri[$replaceRange](portStart, pathStart, "");
                pathStart = dart.notNull(pathStart) - 4;
                queryStart = dart.notNull(queryStart) - 4;
                fragmentStart = dart.notNull(fragmentStart) - 4;
                end = dart.notNull(end) - 3;
              } else {
                uri = uri[$substring](start, portStart) + uri[$substring](pathStart, end);
                schemeEnd = dart.notNull(schemeEnd) - dart.notNull(start);
                hostStart = hostStart - dart.notNull(start);
                portStart = dart.notNull(portStart) - dart.notNull(start);
                pathStart = dart.notNull(pathStart) - (4 + dart.notNull(start));
                queryStart = dart.notNull(queryStart) - (4 + dart.notNull(start));
                fragmentStart = dart.notNull(fragmentStart) - (4 + dart.notNull(start));
                start = 0;
                end = uri.length;
              }
            }
          }
        }
      }
      if (isSimple) {
        if (dart.notNull(start) > 0 || dart.notNull(end) < uri.length) {
          uri = uri[$substring](start, end);
          schemeEnd = dart.notNull(schemeEnd) - dart.notNull(start);
          hostStart = hostStart - dart.notNull(start);
          portStart = dart.notNull(portStart) - dart.notNull(start);
          pathStart = dart.notNull(pathStart) - dart.notNull(start);
          queryStart = dart.notNull(queryStart) - dart.notNull(start);
          fragmentStart = dart.notNull(fragmentStart) - dart.notNull(start);
        }
        return new core._SimpleUri.new(uri, schemeEnd, hostStart, portStart, pathStart, queryStart, fragmentStart, scheme);
      }
      return core._Uri.notSimple(uri, start, end, schemeEnd, hostStart, portStart, pathStart, queryStart, fragmentStart, scheme);
    }
    static tryParse(uri, start = 0, end = null) {
      if (uri == null) dart.nullFailed(I[196], 1159, 31, "uri");
      if (start == null) dart.nullFailed(I[196], 1159, 41, "start");
      try {
        return core.Uri.parse(uri, start, end);
      } catch (t$36$35e) {
        let t$36$35ex = dart.getThrown(t$36$35e);
        if (T$8.FormatException()[_is](t$36$35ex)) {
          return null;
        } else
          throw t$36$35e;
      }
    }
    static encodeComponent(component) {
      if (component == null) dart.nullFailed(I[196], 1193, 40, "component");
      return core._Uri._uriEncode(core._Uri._unreserved2396Table, component, convert.utf8, false);
    }
    static encodeQueryComponent(component, opts) {
      if (component == null) dart.nullFailed(I[196], 1226, 45, "component");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[196], 1227, 17, "encoding");
      return core._Uri._uriEncode(core._Uri._unreservedTable, component, encoding, true);
    }
    static decodeComponent(encodedComponent) {
      if (encodedComponent == null) dart.nullFailed(I[196], 1249, 40, "encodedComponent");
      return core._Uri._uriDecode(encodedComponent, 0, encodedComponent.length, convert.utf8, false);
    }
    static decodeQueryComponent(encodedComponent, opts) {
      if (encodedComponent == null) dart.nullFailed(I[196], 1260, 45, "encodedComponent");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[196], 1261, 17, "encoding");
      return core._Uri._uriDecode(encodedComponent, 0, encodedComponent.length, encoding, true);
    }
    static encodeFull(uri) {
      if (uri == null) dart.nullFailed(I[196], 1280, 35, "uri");
      return core._Uri._uriEncode(core._Uri._encodeFullTable, uri, convert.utf8, false);
    }
    static decodeFull(uri) {
      if (uri == null) dart.nullFailed(I[196], 1297, 35, "uri");
      return core._Uri._uriDecode(uri, 0, uri.length, convert.utf8, false);
    }
    static splitQueryString(query, opts) {
      if (query == null) dart.nullFailed(I[196], 1323, 54, "query");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[196], 1324, 17, "encoding");
      return query[$split]("&")[$fold](T$2.MapOfString$String(), new (G.IdentityMapOfString$String()).new(), dart.fn((map, element) => {
        if (map == null) dart.nullFailed(I[196], 1325, 39, "map");
        if (element == null) dart.nullFailed(I[196], 1325, 44, "element");
        let index = element[$indexOf]("=");
        if (index === -1) {
          if (element !== "") {
            map[$_set](core.Uri.decodeQueryComponent(element, {encoding: encoding}), "");
          }
        } else if (index !== 0) {
          let key = element[$substring](0, index);
          let value = element[$substring](index + 1);
          map[$_set](core.Uri.decodeQueryComponent(key, {encoding: encoding}), core.Uri.decodeQueryComponent(value, {encoding: encoding}));
        }
        return map;
      }, T$8.MapOfString$StringAndStringToMapOfString$String()));
    }
    static parseIPv4Address(host) {
      if (host == null) dart.nullFailed(I[196], 1346, 44, "host");
      return core.Uri._parseIPv4Address(host, 0, host.length);
    }
    static _parseIPv4Address(host, start, end) {
      let t$36383;
      if (host == null) dart.nullFailed(I[196], 1350, 45, "host");
      if (start == null) dart.nullFailed(I[196], 1350, 55, "start");
      if (end == null) dart.nullFailed(I[196], 1350, 66, "end");
      function error(msg, position) {
        if (msg == null) dart.nullFailed(I[196], 1351, 23, "msg");
        if (position == null) dart.nullFailed(I[196], 1351, 32, "position");
        dart.throw(new core.FormatException.new("Illegal IPv4 address, " + dart.str(msg), host, position));
      }
      dart.fn(error, T$8.StringAndintTovoid());
      let result = _native_typed_data.NativeUint8List.new(4);
      let partIndex = 0;
      let partStart = start;
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let char = host[$codeUnitAt](i);
        if (char !== 46) {
          if ((char ^ 48) >>> 0 > 9) {
            error("invalid character", i);
          }
        } else {
          if (partIndex === 3) {
            error("IPv4 address should contain exactly 4 parts", i);
          }
          let part = core.int.parse(host[$substring](partStart, i));
          if (dart.notNull(part) > 255) {
            error("each part must be in the range 0..255", partStart);
          }
          result[$_set]((t$36383 = partIndex, partIndex = t$36383 + 1, t$36383), part);
          partStart = dart.notNull(i) + 1;
        }
      }
      if (partIndex !== 3) {
        error("IPv4 address should contain exactly 4 parts", end);
      }
      let part = core.int.parse(host[$substring](partStart, end));
      if (dart.notNull(part) > 255) {
        error("each part must be in the range 0..255", partStart);
      }
      result[$_set](partIndex, part);
      return result;
    }
    static parseIPv6Address(host, start = 0, end = null) {
      if (host == null) dart.nullFailed(I[196], 1408, 44, "host");
      if (start == null) dart.nullFailed(I[196], 1408, 55, "start");
      end == null ? end = host.length : null;
      function error(msg, position) {
        if (msg == null) dart.nullFailed(I[196], 1418, 23, "msg");
        dart.throw(new core.FormatException.new("Illegal IPv6 address, " + dart.str(msg), host, position));
      }
      dart.fn(error, T$8.StringAndintNTovoid());
      function parseHex(start, end) {
        if (start == null) dart.nullFailed(I[196], 1423, 22, "start");
        if (end == null) dart.nullFailed(I[196], 1423, 33, "end");
        if (dart.notNull(end) - dart.notNull(start) > 4) {
          error("an IPv6 part can only contain a maximum of 4 hex digits", start);
        }
        let value = core.int.parse(host[$substring](start, end), {radix: 16});
        if (dart.notNull(value) < 0 || dart.notNull(value) > 65535) {
          error("each part must be in the range of `0x0..0xFFFF`", start);
        }
        return value;
      }
      dart.fn(parseHex, T$.intAndintToint());
      if (host.length < 2) error("address is too short", null);
      let parts = G.JSArrayOfint().of([]);
      let wildcardSeen = false;
      let seenDot = false;
      let partStart = start;
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let char = host[$codeUnitAt](i);
        if (char === 58) {
          if (i == start) {
            i = dart.notNull(i) + 1;
            if (host[$codeUnitAt](i) !== 58) {
              error("invalid start colon.", i);
            }
            partStart = i;
          }
          if (i == partStart) {
            if (wildcardSeen) {
              error("only one wildcard `::` is allowed", i);
            }
            wildcardSeen = true;
            parts[$add](-1);
          } else {
            parts[$add](parseHex(partStart, i));
          }
          partStart = dart.notNull(i) + 1;
        } else if (char === 46) {
          seenDot = true;
        }
      }
      if (parts[$length] === 0) error("too few parts", null);
      let atEnd = partStart == end;
      let isLastWildcard = parts[$last] === -1;
      if (atEnd && !isLastWildcard) {
        error("expected a part after last `:`", end);
      }
      if (!atEnd) {
        if (!seenDot) {
          parts[$add](parseHex(partStart, end));
        } else {
          let last = core.Uri._parseIPv4Address(host, partStart, end);
          parts[$add]((dart.notNull(last[$_get](0)) << 8 | dart.notNull(last[$_get](1))) >>> 0);
          parts[$add]((dart.notNull(last[$_get](2)) << 8 | dart.notNull(last[$_get](3))) >>> 0);
        }
      }
      if (wildcardSeen) {
        if (dart.notNull(parts[$length]) > 7) {
          error("an address with a wildcard must have less than 7 parts", null);
        }
      } else if (parts[$length] !== 8) {
        error("an address without a wildcard must contain exactly 8 parts", null);
      }
      let bytes = _native_typed_data.NativeUint8List.new(16);
      for (let i = 0, index = 0; i < dart.notNull(parts[$length]); i = i + 1) {
        let value = parts[$_get](i);
        if (value === -1) {
          let wildCardLength = 9 - dart.notNull(parts[$length]);
          for (let j = 0; j < wildCardLength; j = j + 1) {
            bytes[$_set](index, 0);
            bytes[$_set](index + 1, 0);
            index = index + 2;
          }
        } else {
          bytes[$_set](index, value[$rightShift](8));
          bytes[$_set](index + 1, dart.notNull(value) & 255);
          index = index + 2;
        }
      }
      return bytes;
    }
  };
  (core.Uri[dart.mixinNew] = function() {
  }).prototype = core.Uri.prototype;
  dart.addRtiResources(core.Uri, ["core|Uri"]);
  dart.setStaticMethodSignature(core.Uri, () => ['new', 'http', 'https', 'file', 'directory', 'dataFromString', 'dataFromBytes', 'parse', 'tryParse', 'encodeComponent', 'encodeQueryComponent', 'decodeComponent', 'decodeQueryComponent', 'encodeFull', 'decodeFull', 'splitQueryString', 'parseIPv4Address', '_parseIPv4Address', 'parseIPv6Address']);
  dart.setGetterSignature(core.Uri, () => dart.global.Object.setPrototypeOf({hasScheme: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(core.Uri))));
  dart.setStaticGetterSignature(core.Uri, () => ['base']);
  dart.setLibraryUri(core.Uri, I[11]);
  core._PlatformUri = class _PlatformUri extends core.Object {};
  (core._PlatformUri.new = function() {
    ;
  }).prototype = core._PlatformUri.prototype;
  dart.addRtiResources(core._PlatformUri, ["core|_PlatformUri", "core|Uri"]);
  dart.setLibraryUri(core._PlatformUri, I[11]);
  var ___Uri__text = dart.privateName(core, "_#_Uri#_text");
  var ___Uri__text_isSet = dart.privateName(core, "_#_Uri#_text#isSet");
  var ___Uri_pathSegments = dart.privateName(core, "_#_Uri#pathSegments");
  var ___Uri_pathSegments_isSet = dart.privateName(core, "_#_Uri#pathSegments#isSet");
  var ___Uri_hashCode = dart.privateName(core, "_#_Uri#hashCode");
  var ___Uri_hashCode_isSet = dart.privateName(core, "_#_Uri#hashCode#isSet");
  var ___Uri_queryParameters = dart.privateName(core, "_#_Uri#queryParameters");
  var ___Uri_queryParameters_isSet = dart.privateName(core, "_#_Uri#queryParameters#isSet");
  var ___Uri_queryParametersAll = dart.privateName(core, "_#_Uri#queryParametersAll");
  var ___Uri_queryParametersAll_isSet = dart.privateName(core, "_#_Uri#queryParametersAll#isSet");
  var _userInfo$ = dart.privateName(core, "_userInfo");
  var _host$ = dart.privateName(core, "_host");
  var _port$ = dart.privateName(core, "_port");
  var _query$ = dart.privateName(core, "_query");
  var _fragment$ = dart.privateName(core, "_fragment");
  var _initializeText = dart.privateName(core, "_initializeText");
  var _text$ = dart.privateName(core, "_text");
  var _writeAuthority = dart.privateName(core, "_writeAuthority");
  var _mergePaths = dart.privateName(core, "_mergePaths");
  var _toFilePath = dart.privateName(core, "_toFilePath");
  core._Uri = class _Uri extends core.Object {
    get [_text$]() {
      let t$36384;
      if (!dart.test(this[___Uri__text_isSet])) {
        let t$36383 = this[_initializeText]();
        if (dart.test(this[___Uri__text_isSet])) dart.throw(new _internal.LateError.fieldADI("_text"));
        this[___Uri__text] = t$36383;
        this[___Uri__text_isSet] = true;
      }
      t$36384 = this[___Uri__text];
      return t$36384;
    }
    get pathSegments() {
      let t$36385;
      if (!dart.test(this[___Uri_pathSegments_isSet])) {
        let t$36384 = core._Uri._computePathSegments(this.path);
        if (dart.test(this[___Uri_pathSegments_isSet])) dart.throw(new _internal.LateError.fieldADI("pathSegments"));
        this[___Uri_pathSegments] = t$36384;
        this[___Uri_pathSegments_isSet] = true;
      }
      t$36385 = this[___Uri_pathSegments];
      return t$36385;
    }
    get hashCode() {
      let t$36386;
      if (!dart.test(this[___Uri_hashCode_isSet])) {
        let t$36385 = dart.hashCode(this[_text$]);
        if (dart.test(this[___Uri_hashCode_isSet])) dart.throw(new _internal.LateError.fieldADI("hashCode"));
        this[___Uri_hashCode] = t$36385;
        this[___Uri_hashCode_isSet] = true;
      }
      t$36386 = this[___Uri_hashCode];
      return t$36386;
    }
    get queryParameters() {
      let t$36387;
      if (!dart.test(this[___Uri_queryParameters_isSet])) {
        let t$36386 = new (G.UnmodifiableMapViewOfString$String()).new(core.Uri.splitQueryString(this.query));
        if (dart.test(this[___Uri_queryParameters_isSet])) dart.throw(new _internal.LateError.fieldADI("queryParameters"));
        this[___Uri_queryParameters] = t$36386;
        this[___Uri_queryParameters_isSet] = true;
      }
      t$36387 = this[___Uri_queryParameters];
      return t$36387;
    }
    get queryParametersAll() {
      let t$36388;
      if (!dart.test(this[___Uri_queryParametersAll_isSet])) {
        let t$36387 = core._Uri._computeQueryParametersAll(this.query);
        if (dart.test(this[___Uri_queryParametersAll_isSet])) dart.throw(new _internal.LateError.fieldADI("queryParametersAll"));
        this[___Uri_queryParametersAll] = t$36387;
        this[___Uri_queryParametersAll_isSet] = true;
      }
      t$36388 = this[___Uri_queryParametersAll];
      return t$36388;
    }
    static ['_#_internal#tearOff'](scheme, _userInfo, _host, _port, path, _query, _fragment) {
      if (scheme == null) dart.nullFailed(I[196], 1577, 23, "scheme");
      if (_userInfo == null) dart.nullFailed(I[196], 1577, 36, "_userInfo");
      if (path == null) dart.nullFailed(I[196], 1577, 76, "path");
      return new core._Uri._internal(scheme, _userInfo, _host, _port, path, _query, _fragment);
    }
    static ['_#notSimple#tearOff'](uri, start, end, schemeEnd, hostStart, portStart, pathStart, queryStart, fragmentStart, scheme) {
      if (uri == null) dart.nullFailed(I[196], 1586, 14, "uri");
      if (start == null) dart.nullFailed(I[196], 1587, 11, "start");
      if (end == null) dart.nullFailed(I[196], 1588, 11, "end");
      if (schemeEnd == null) dart.nullFailed(I[196], 1589, 11, "schemeEnd");
      if (hostStart == null) dart.nullFailed(I[196], 1590, 11, "hostStart");
      if (portStart == null) dart.nullFailed(I[196], 1591, 11, "portStart");
      if (pathStart == null) dart.nullFailed(I[196], 1592, 11, "pathStart");
      if (queryStart == null) dart.nullFailed(I[196], 1593, 11, "queryStart");
      if (fragmentStart == null) dart.nullFailed(I[196], 1594, 11, "fragmentStart");
      return core._Uri.notSimple(uri, start, end, schemeEnd, hostStart, portStart, pathStart, queryStart, fragmentStart, scheme);
    }
    static notSimple(uri, start, end, schemeEnd, hostStart, portStart, pathStart, queryStart, fragmentStart, scheme) {
      let t$36388;
      if (uri == null) dart.nullFailed(I[196], 1586, 14, "uri");
      if (start == null) dart.nullFailed(I[196], 1587, 11, "start");
      if (end == null) dart.nullFailed(I[196], 1588, 11, "end");
      if (schemeEnd == null) dart.nullFailed(I[196], 1589, 11, "schemeEnd");
      if (hostStart == null) dart.nullFailed(I[196], 1590, 11, "hostStart");
      if (portStart == null) dart.nullFailed(I[196], 1591, 11, "portStart");
      if (pathStart == null) dart.nullFailed(I[196], 1592, 11, "pathStart");
      if (queryStart == null) dart.nullFailed(I[196], 1593, 11, "queryStart");
      if (fragmentStart == null) dart.nullFailed(I[196], 1594, 11, "fragmentStart");
      if (scheme == null) {
        scheme = "";
        if (dart.notNull(schemeEnd) > dart.notNull(start)) {
          scheme = core._Uri._makeScheme(uri, start, schemeEnd);
        } else if (schemeEnd == start) {
          core._Uri._fail(uri, start, "Invalid empty scheme");
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
        }
      }
      let userInfo = "";
      let host = null;
      let port = null;
      if (dart.notNull(hostStart) > dart.notNull(start)) {
        let userInfoStart = dart.notNull(schemeEnd) + 3;
        if (userInfoStart < dart.notNull(hostStart)) {
          userInfo = core._Uri._makeUserInfo(uri, userInfoStart, dart.notNull(hostStart) - 1);
        }
        host = core._Uri._makeHost(uri, hostStart, portStart, false);
        if (dart.notNull(portStart) + 1 < dart.notNull(pathStart)) {
          let portNumber = (t$36388 = core.int.tryParse(uri[$substring](dart.notNull(portStart) + 1, pathStart)), t$36388 == null ? dart.throw(new core.FormatException.new("Invalid port", uri, dart.notNull(portStart) + 1)) : t$36388);
          port = core._Uri._makePort(portNumber, scheme);
        }
      }
      let path = core._Uri._makePath(uri, pathStart, queryStart, null, scheme, host != null);
      let query = null;
      if (dart.notNull(queryStart) < dart.notNull(fragmentStart)) {
        query = core._Uri._makeQuery(uri, dart.notNull(queryStart) + 1, fragmentStart, null);
      }
      let fragment = null;
      if (dart.notNull(fragmentStart) < dart.notNull(end)) {
        fragment = core._Uri._makeFragment(uri, dart.notNull(fragmentStart) + 1, end);
      }
      return new core._Uri._internal(scheme, userInfo, host, port, path, query, fragment);
    }
    static new(opts) {
      let scheme = opts && 'scheme' in opts ? opts.scheme : null;
      let userInfo = opts && 'userInfo' in opts ? opts.userInfo : null;
      let host = opts && 'host' in opts ? opts.host : null;
      let port = opts && 'port' in opts ? opts.port : null;
      let path = opts && 'path' in opts ? opts.path : null;
      let pathSegments = opts && 'pathSegments' in opts ? opts.pathSegments : null;
      let query = opts && 'query' in opts ? opts.query : null;
      let queryParameters = opts && 'queryParameters' in opts ? opts.queryParameters : null;
      let fragment = opts && 'fragment' in opts ? opts.fragment : null;
      if (scheme == null) {
        scheme = "";
      } else {
        scheme = core._Uri._makeScheme(scheme, 0, scheme.length);
      }
      userInfo = core._Uri._makeUserInfo(userInfo, 0, core._stringOrNullLength(userInfo));
      if (userInfo == null) {
        dart.throw("unreachable");
      }
      host = core._Uri._makeHost(host, 0, core._stringOrNullLength(host), false);
      if (query === "") query = null;
      query = core._Uri._makeQuery(query, 0, core._stringOrNullLength(query), queryParameters);
      fragment = core._Uri._makeFragment(fragment, 0, core._stringOrNullLength(fragment));
      port = core._Uri._makePort(port, scheme);
      let isFile = scheme === "file";
      if (host == null && (userInfo[$isNotEmpty] || port != null || isFile)) {
        host = "";
      }
      let hasAuthority = host != null;
      path = core._Uri._makePath(path, 0, core._stringOrNullLength(path), pathSegments, scheme, hasAuthority);
      if (path == null) {
        dart.throw("unreachable");
      }
      if (scheme[$isEmpty] && host == null && !path[$startsWith]("/")) {
        let allowScheme = scheme[$isNotEmpty] || host != null;
        path = core._Uri._normalizeRelativePath(path, allowScheme);
      } else {
        path = core._Uri._removeDotSegments(path);
      }
      if (host == null && path[$startsWith]("//")) {
        host = "";
      }
      return new core._Uri._internal(scheme, userInfo, host, port, path, query, fragment);
    }
    static ['_#new#tearOff'](opts) {
      let scheme = opts && 'scheme' in opts ? opts.scheme : null;
      let userInfo = opts && 'userInfo' in opts ? opts.userInfo : null;
      let host = opts && 'host' in opts ? opts.host : null;
      let port = opts && 'port' in opts ? opts.port : null;
      let path = opts && 'path' in opts ? opts.path : null;
      let pathSegments = opts && 'pathSegments' in opts ? opts.pathSegments : null;
      let query = opts && 'query' in opts ? opts.query : null;
      let queryParameters = opts && 'queryParameters' in opts ? opts.queryParameters : null;
      let fragment = opts && 'fragment' in opts ? opts.fragment : null;
      return core._Uri.new({scheme: scheme, userInfo: userInfo, host: host, port: port, path: path, pathSegments: pathSegments, query: query, queryParameters: queryParameters, fragment: fragment});
    }
    static http(authority, unencodedPath = "", queryParameters = null) {
      if (authority == null) dart.nullFailed(I[196], 1684, 28, "authority");
      if (unencodedPath == null) dart.nullFailed(I[196], 1685, 15, "unencodedPath");
      return core._Uri._makeHttpUri("http", authority, unencodedPath, queryParameters);
    }
    static ['_#http#tearOff'](authority, unencodedPath = "", queryParameters = null) {
      if (authority == null) dart.nullFailed(I[196], 1684, 28, "authority");
      if (unencodedPath == null) dart.nullFailed(I[196], 1685, 15, "unencodedPath");
      return core._Uri.http(authority, unencodedPath, queryParameters);
    }
    static ['_#https#tearOff'](authority, unencodedPath = "", queryParameters = null) {
      if (authority == null) dart.nullFailed(I[196], 1690, 29, "authority");
      if (unencodedPath == null) dart.nullFailed(I[196], 1691, 15, "unencodedPath");
      return core._Uri.https(authority, unencodedPath, queryParameters);
    }
    static https(authority, unencodedPath = "", queryParameters = null) {
      if (authority == null) dart.nullFailed(I[196], 1690, 29, "authority");
      if (unencodedPath == null) dart.nullFailed(I[196], 1691, 15, "unencodedPath");
      return core._Uri._makeHttpUri("https", authority, unencodedPath, queryParameters);
    }
    get authority() {
      if (!dart.test(this.hasAuthority)) return "";
      let sb = new core.StringBuffer.new();
      this[_writeAuthority](sb);
      return dart.toString(sb);
    }
    get userInfo() {
      return this[_userInfo$];
    }
    get host() {
      let host = this[_host$];
      if (host == null) return "";
      if (host[$startsWith]("[")) {
        return host[$substring](1, host.length - 1);
      }
      return host;
    }
    get port() {
      let t$36388;
      t$36388 = this[_port$];
      return t$36388 == null ? core._Uri._defaultPort(this.scheme) : t$36388;
    }
    static _defaultPort(scheme) {
      if (scheme == null) dart.nullFailed(I[196], 1718, 34, "scheme");
      if (scheme === "http") return 80;
      if (scheme === "https") return 443;
      return 0;
    }
    get query() {
      let t$36388;
      t$36388 = this[_query$];
      return t$36388 == null ? "" : t$36388;
    }
    get fragment() {
      let t$36388;
      t$36388 = this[_fragment$];
      return t$36388 == null ? "" : t$36388;
    }
    isScheme(scheme) {
      if (scheme == null) dart.nullFailed(I[196], 1728, 24, "scheme");
      let thisScheme = this.scheme;
      if (scheme == null) return thisScheme[$isEmpty];
      if (scheme.length !== thisScheme.length) return false;
      return core._caseInsensitiveStartsWith(scheme, thisScheme, 0);
    }
    static _fail(uri, index, message) {
      if (uri == null) dart.nullFailed(I[196], 1736, 29, "uri");
      if (index == null) dart.nullFailed(I[196], 1736, 38, "index");
      if (message == null) dart.nullFailed(I[196], 1736, 52, "message");
      dart.throw(new core.FormatException.new(message, uri, index));
    }
    static _makeHttpUri(scheme, authority, unencodedPath, queryParameters) {
      if (scheme == null) dart.nullFailed(I[196], 1740, 35, "scheme");
      if (unencodedPath == null) dart.nullFailed(I[196], 1741, 14, "unencodedPath");
      let userInfo = "";
      let host = null;
      let port = null;
      if (authority != null && authority[$isNotEmpty]) {
        let hostStart = 0;
        for (let i = 0; i < authority.length; i = i + 1) {
          if (authority[$codeUnitAt](i) === 64) {
            userInfo = authority[$substring](0, i);
            hostStart = i + 1;
            break;
          }
        }
        let hostEnd = hostStart;
        if (hostStart < authority.length && authority[$codeUnitAt](hostStart) === 91) {
          let escapeForZoneID = -1;
          for (; hostEnd < authority.length; hostEnd = hostEnd + 1) {
            let char = authority[$codeUnitAt](hostEnd);
            if (char === 37 && escapeForZoneID < 0) {
              escapeForZoneID = hostEnd;
              if (authority[$startsWith]("25", hostEnd + 1)) {
                hostEnd = hostEnd + 2;
              }
            } else if (char === 93) {
              break;
            }
          }
          if (hostEnd === authority.length) {
            dart.throw(new core.FormatException.new("Invalid IPv6 host entry.", authority, hostStart));
          }
          core.Uri.parseIPv6Address(authority, hostStart + 1, escapeForZoneID < 0 ? hostEnd : escapeForZoneID);
          hostEnd = hostEnd + 1;
          if (hostEnd !== authority.length && authority[$codeUnitAt](hostEnd) !== 58) {
            dart.throw(new core.FormatException.new("Invalid end of authority", authority, hostEnd));
          }
        }
        for (; hostEnd < authority.length; hostEnd = hostEnd + 1) {
          if (authority[$codeUnitAt](hostEnd) === 58) {
            let portString = authority[$substring](hostEnd + 1);
            if (portString[$isNotEmpty]) port = core.int.parse(portString);
            break;
          }
        }
        host = authority[$substring](hostStart, hostEnd);
      }
      return core._Uri.new({scheme: scheme, userInfo: userInfo, host: host, port: port, pathSegments: unencodedPath[$split]("/"), queryParameters: queryParameters});
    }
    static file(path, opts) {
      let t$36388;
      if (path == null) dart.nullFailed(I[196], 1806, 28, "path");
      let windows = opts && 'windows' in opts ? opts.windows : null;
      return T$8._Uri()[_as](dart.test((t$36388 = windows, t$36388 == null ? core._Uri._isWindows : t$36388)) ? core._Uri._makeWindowsFileUrl(path, false) : core._Uri._makeFileUri(path, false));
    }
    static ['_#file#tearOff'](path, opts) {
      if (path == null) dart.nullFailed(I[196], 1806, 28, "path");
      let windows = opts && 'windows' in opts ? opts.windows : null;
      return core._Uri.file(path, {windows: windows});
    }
    static ['_#directory#tearOff'](path, opts) {
      if (path == null) dart.nullFailed(I[196], 1813, 33, "path");
      let windows = opts && 'windows' in opts ? opts.windows : null;
      return core._Uri.directory(path, {windows: windows});
    }
    static directory(path, opts) {
      let t$36388;
      if (path == null) dart.nullFailed(I[196], 1813, 33, "path");
      let windows = opts && 'windows' in opts ? opts.windows : null;
      return T$8._Uri()[_as](dart.test((t$36388 = windows, t$36388 == null ? core._Uri._isWindows : t$36388)) ? core._Uri._makeWindowsFileUrl(path, true) : core._Uri._makeFileUri(path, true));
    }
    static get _isWindows() {
      return false;
    }
    static _checkNonWindowsPathReservedCharacters(segments, argumentError) {
      if (segments == null) dart.nullFailed(I[196], 1823, 20, "segments");
      if (argumentError == null) dart.nullFailed(I[196], 1823, 35, "argumentError");
      for (let segment of segments) {
        if (segment[$contains]("/")) {
          if (dart.test(argumentError)) {
            dart.throw(new core.ArgumentError.new("Illegal path character " + dart.str(segment)));
          } else {
            dart.throw(new core.UnsupportedError.new("Illegal path character " + dart.str(segment)));
          }
        }
      }
    }
    static _checkWindowsPathReservedCharacters(segments, argumentError, firstSegment = 0) {
      if (segments == null) dart.nullFailed(I[196], 1836, 20, "segments");
      if (argumentError == null) dart.nullFailed(I[196], 1836, 35, "argumentError");
      if (firstSegment == null) dart.nullFailed(I[196], 1837, 12, "firstSegment");
      for (let segment of segments[$skip](firstSegment)) {
        if (segment[$contains](core.RegExp.new("[\"*/:<>?\\\\|]"))) {
          if (dart.test(argumentError)) {
            dart.throw(new core.ArgumentError.new("Illegal character in path"));
          } else {
            dart.throw(new core.UnsupportedError.new("Illegal character in path: " + dart.str(segment)));
          }
        }
      }
    }
    static _checkWindowsDriveLetter(charCode, argumentError) {
      if (charCode == null) dart.nullFailed(I[196], 1849, 44, "charCode");
      if (argumentError == null) dart.nullFailed(I[196], 1849, 59, "argumentError");
      if (65 <= dart.notNull(charCode) && dart.notNull(charCode) <= 90 || 97 <= dart.notNull(charCode) && dart.notNull(charCode) <= 122) {
        return;
      }
      if (dart.test(argumentError)) {
        dart.throw(new core.ArgumentError.new("Illegal drive letter " + dart.notNull(core.String.fromCharCode(charCode))));
      } else {
        dart.throw(new core.UnsupportedError.new("Illegal drive letter " + dart.notNull(core.String.fromCharCode(charCode))));
      }
    }
    static _makeFileUri(path, slashTerminated) {
      if (path == null) dart.nullFailed(I[196], 1863, 34, "path");
      if (slashTerminated == null) dart.nullFailed(I[196], 1863, 45, "slashTerminated");
      let segments = path[$split]("/");
      if (dart.test(slashTerminated) && dart.test(segments[$isNotEmpty]) && segments[$last][$isNotEmpty]) {
        segments[$add]("");
      }
      if (path[$startsWith]("/")) {
        return core._Uri.new({scheme: "file", pathSegments: segments});
      } else {
        return core._Uri.new({pathSegments: segments});
      }
    }
    static _makeWindowsFileUrl(path, slashTerminated) {
      if (path == null) dart.nullFailed(I[196], 1878, 37, "path");
      if (slashTerminated == null) dart.nullFailed(I[196], 1878, 48, "slashTerminated");
      if (path[$startsWith]("\\\\?\\")) {
        if (path[$startsWith]("UNC\\", 4)) {
          path = path[$replaceRange](0, 7, "\\");
        } else {
          path = path[$substring](4);
          if (path.length < 3 || path[$codeUnitAt](1) !== 58 || path[$codeUnitAt](2) !== 92) {
            dart.throw(new core.ArgumentError.value(path, "path", "Windows paths with \\\\?\\ prefix must be absolute"));
          }
        }
      } else {
        path = path[$replaceAll]("/", "\\");
      }
      if (path.length > 1 && path[$codeUnitAt](1) === 58) {
        core._Uri._checkWindowsDriveLetter(path[$codeUnitAt](0), true);
        if (path.length === 2 || path[$codeUnitAt](2) !== 92) {
          dart.throw(new core.ArgumentError.value(path, "path", "Windows paths with drive letter must be absolute"));
        }
        let pathSegments = path[$split]("\\");
        if (dart.test(slashTerminated) && pathSegments[$last][$isNotEmpty]) {
          pathSegments[$add]("");
        }
        core._Uri._checkWindowsPathReservedCharacters(pathSegments, true, 1);
        return core._Uri.new({scheme: "file", pathSegments: pathSegments});
      }
      if (path[$startsWith]("\\")) {
        if (path[$startsWith]("\\", 1)) {
          let pathStart = path[$indexOf]("\\", 2);
          let hostPart = pathStart < 0 ? path[$substring](2) : path[$substring](2, pathStart);
          let pathPart = pathStart < 0 ? "" : path[$substring](pathStart + 1);
          let pathSegments = pathPart[$split]("\\");
          core._Uri._checkWindowsPathReservedCharacters(pathSegments, true);
          if (dart.test(slashTerminated) && pathSegments[$last][$isNotEmpty]) {
            pathSegments[$add]("");
          }
          return core._Uri.new({scheme: "file", host: hostPart, pathSegments: pathSegments});
        } else {
          let pathSegments = path[$split]("\\");
          if (dart.test(slashTerminated) && pathSegments[$last][$isNotEmpty]) {
            pathSegments[$add]("");
          }
          core._Uri._checkWindowsPathReservedCharacters(pathSegments, true);
          return core._Uri.new({scheme: "file", pathSegments: pathSegments});
        }
      } else {
        let pathSegments = path[$split]("\\");
        core._Uri._checkWindowsPathReservedCharacters(pathSegments, true);
        if (dart.test(slashTerminated) && dart.test(pathSegments[$isNotEmpty]) && pathSegments[$last][$isNotEmpty]) {
          pathSegments[$add]("");
        }
        return core._Uri.new({pathSegments: pathSegments});
      }
    }
    replace(opts) {
      let scheme = opts && 'scheme' in opts ? opts.scheme : null;
      let userInfo = opts && 'userInfo' in opts ? opts.userInfo : null;
      let host = opts && 'host' in opts ? opts.host : null;
      let port = opts && 'port' in opts ? opts.port : null;
      let path = opts && 'path' in opts ? opts.path : null;
      let pathSegments = opts && 'pathSegments' in opts ? opts.pathSegments : null;
      let query = opts && 'query' in opts ? opts.query : null;
      let queryParameters = opts && 'queryParameters' in opts ? opts.queryParameters : null;
      let fragment = opts && 'fragment' in opts ? opts.fragment : null;
      let schemeChanged = false;
      if (scheme != null) {
        scheme = core._Uri._makeScheme(scheme, 0, scheme.length);
        schemeChanged = scheme != this.scheme;
      } else {
        scheme = this.scheme;
      }
      let isFile = scheme === "file";
      if (userInfo != null) {
        userInfo = core._Uri._makeUserInfo(userInfo, 0, userInfo.length);
      } else {
        userInfo = this[_userInfo$];
      }
      if (port != null) {
        port = core._Uri._makePort(port, scheme);
      } else {
        port = this[_port$];
        if (schemeChanged) {
          port = core._Uri._makePort(port, scheme);
        }
      }
      if (host != null) {
        host = core._Uri._makeHost(host, 0, host.length, false);
      } else if (dart.test(this.hasAuthority)) {
        host = this[_host$];
      } else if (userInfo[$isNotEmpty] || port != null || isFile) {
        host = "";
      }
      let hasAuthority = host != null;
      if (path != null || pathSegments != null) {
        path = core._Uri._makePath(path, 0, core._stringOrNullLength(path), pathSegments, scheme, hasAuthority);
      } else {
        let currentPath = this.path;
        if ((isFile || hasAuthority && !currentPath[$isEmpty]) && !currentPath[$startsWith]("/")) {
          currentPath = "/" + dart.notNull(currentPath);
        }
        path = currentPath;
      }
      if (query != null || queryParameters != null) {
        query = core._Uri._makeQuery(query, 0, core._stringOrNullLength(query), queryParameters);
      } else {
        query = this[_query$];
      }
      if (fragment != null) {
        fragment = core._Uri._makeFragment(fragment, 0, fragment.length);
      } else {
        fragment = this[_fragment$];
      }
      return new core._Uri._internal(scheme, userInfo, host, port, path, query, fragment);
    }
    removeFragment() {
      if (!dart.test(this.hasFragment)) return this;
      return new core._Uri._internal(this.scheme, this[_userInfo$], this[_host$], this[_port$], this.path, this[_query$], null);
    }
    static _computePathSegments(pathToSplit) {
      if (pathToSplit == null) dart.nullFailed(I[196], 2023, 51, "pathToSplit");
      if (pathToSplit[$isNotEmpty] && pathToSplit[$codeUnitAt](0) === 47) {
        pathToSplit = pathToSplit[$substring](1);
      }
      return pathToSplit[$isEmpty] ? C[456] || CT.C456 : G.ListOfString().unmodifiable(pathToSplit[$split]("/")[$map](T$.dynamic(), C[480] || CT.C480));
    }
    static _computeQueryParametersAll(query) {
      if (query == null || query[$isEmpty]) return C[481] || CT.C481;
      let queryParameterLists = core._Uri._splitQueryStringAll(query);
      queryParameterLists[$updateAll](C[482] || CT.C482);
      return G$.MapOfString$ListOfString().unmodifiable(queryParameterLists);
    }
    normalizePath() {
      let path = core._Uri._normalizePath(this.path, this.scheme, this.hasAuthority);
      if (path == this.path) return this;
      return this.replace({path: path});
    }
    static _makePort(port, scheme) {
      if (scheme == null) dart.nullFailed(I[196], 2046, 43, "scheme");
      if (port != null && port == core._Uri._defaultPort(scheme)) return null;
      return port;
    }
    static _makeHost(host, start, end, strictIPv6) {
      if (start == null) dart.nullFailed(I[196], 2061, 46, "start");
      if (end == null) dart.nullFailed(I[196], 2061, 57, "end");
      if (strictIPv6 == null) dart.nullFailed(I[196], 2061, 67, "strictIPv6");
      if (host == null) return null;
      if (start == end) return "";
      if (host[$codeUnitAt](start) === 91) {
        if (host[$codeUnitAt](dart.notNull(end) - 1) !== 93) {
          core._Uri._fail(host, start, "Missing end `]` to match `[` in host");
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
        }
        let zoneID = "";
        let index = core._Uri._checkZoneID(host, dart.notNull(start) + 1, dart.notNull(end) - 1);
        if (dart.notNull(index) < dart.notNull(end) - 1) {
          let zoneIDstart = host[$startsWith]("25", dart.notNull(index) + 1) ? dart.notNull(index) + 3 : dart.notNull(index) + 1;
          zoneID = core._Uri._normalizeZoneID(host, zoneIDstart, dart.notNull(end) - 1, "%25");
        }
        core.Uri.parseIPv6Address(host, dart.notNull(start) + 1, index);
        return host[$substring](start, index)[$toLowerCase]() + dart.notNull(zoneID) + "]";
      }
      if (!dart.test(strictIPv6)) {
        for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
          if (host[$codeUnitAt](i) === 58) {
            let zoneID = "";
            let index = core._Uri._checkZoneID(host, start, end);
            if (dart.notNull(index) < dart.notNull(end)) {
              let zoneIDstart = host[$startsWith]("25", dart.notNull(index) + 1) ? dart.notNull(index) + 3 : dart.notNull(index) + 1;
              zoneID = core._Uri._normalizeZoneID(host, zoneIDstart, end, "%25");
            }
            core.Uri.parseIPv6Address(host, start, index);
            return "[" + host[$substring](start, index) + dart.notNull(zoneID) + "]";
          }
        }
      }
      return core._Uri._normalizeRegName(host, start, end);
    }
    static _checkZoneID(host, start, end) {
      if (host == null) dart.nullFailed(I[196], 2102, 34, "host");
      if (start == null) dart.nullFailed(I[196], 2102, 44, "start");
      if (end == null) dart.nullFailed(I[196], 2102, 55, "end");
      let index = host[$indexOf]("%", start);
      index = dart.notNull(index) >= dart.notNull(start) && dart.notNull(index) < dart.notNull(end) ? index : end;
      return index;
    }
    static _isZoneIDChar(char) {
      if (char == null) dart.nullFailed(I[196], 2108, 33, "char");
      return dart.notNull(char) < 127 && (dart.notNull(core._Uri._zoneIDTable[$_get](char[$rightShift](4))) & 1 << (dart.notNull(char) & 15)) !== 0;
    }
    static _normalizeZoneID(host, start, end, prefix = "") {
      let t$36388, t$36388$;
      if (host == null) dart.nullFailed(I[196], 2118, 41, "host");
      if (start == null) dart.nullFailed(I[196], 2118, 51, "start");
      if (end == null) dart.nullFailed(I[196], 2118, 62, "end");
      if (prefix == null) dart.nullFailed(I[196], 2119, 15, "prefix");
      let buffer = null;
      if (prefix !== "") {
        buffer = new core.StringBuffer.new(prefix);
      }
      let sectionStart = start;
      let index = start;
      let isNormalized = true;
      while (dart.notNull(index) < dart.notNull(end)) {
        let char = host[$codeUnitAt](index);
        if (char === 37) {
          let replacement = core._Uri._normalizeEscape(host, index, true);
          if (replacement == null && isNormalized) {
            index = dart.notNull(index) + 3;
            continue;
          }
          buffer == null ? buffer = new core.StringBuffer.new() : null;
          let slice = host[$substring](sectionStart, index);
          buffer.write(slice);
          let sourceLength = 3;
          if (replacement == null) {
            replacement = host[$substring](index, dart.notNull(index) + 3);
          } else if (replacement === "%") {
            core._Uri._fail(host, index, "ZoneID should not contain % anymore");
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
          }
          buffer.write(replacement);
          index = dart.notNull(index) + sourceLength;
          sectionStart = index;
          isNormalized = true;
        } else if (dart.test(core._Uri._isZoneIDChar(char))) {
          if (isNormalized && 65 <= char && 90 >= char) {
            buffer == null ? buffer = new core.StringBuffer.new() : null;
            if (dart.notNull(sectionStart) < dart.notNull(index)) {
              buffer.write(host[$substring](sectionStart, index));
              sectionStart = index;
            }
            isNormalized = false;
          }
          index = dart.notNull(index) + 1;
        } else {
          let sourceLength = 1;
          if ((char & 64512) === 55296 && dart.notNull(index) + 1 < dart.notNull(end)) {
            let tail = host[$codeUnitAt](dart.notNull(index) + 1);
            if ((tail & 64512) === 56320) {
              char = 65536 | (char & 1023) << 10 | tail & 1023;
              sourceLength = 2;
            }
          }
          let slice = host[$substring](sectionStart, index);
          t$36388$ = (t$36388 = buffer, t$36388 == null ? buffer = new core.StringBuffer.new() : t$36388);
          (() => {
            t$36388$.write(slice);
            t$36388$.write(core._Uri._escapeChar(char));
            return t$36388$;
          })();
          index = dart.notNull(index) + sourceLength;
          sectionStart = index;
        }
      }
      if (buffer == null) return host[$substring](start, end);
      if (dart.notNull(sectionStart) < dart.notNull(end)) {
        let slice = host[$substring](sectionStart, end);
        buffer.write(slice);
      }
      return dart.toString(buffer);
    }
    static _isRegNameChar(char) {
      if (char == null) dart.nullFailed(I[196], 2186, 34, "char");
      return dart.notNull(char) < 127 && (dart.notNull(core._Uri._regNameTable[$_get](char[$rightShift](4))) & 1 << (dart.notNull(char) & 15)) !== 0;
    }
    static _normalizeRegName(host, start, end) {
      let t$36388, t$36388$;
      if (host == null) dart.nullFailed(I[196], 2195, 42, "host");
      if (start == null) dart.nullFailed(I[196], 2195, 52, "start");
      if (end == null) dart.nullFailed(I[196], 2195, 63, "end");
      let buffer = null;
      let sectionStart = start;
      let index = start;
      let isNormalized = true;
      while (dart.notNull(index) < dart.notNull(end)) {
        let char = host[$codeUnitAt](index);
        if (char === 37) {
          let replacement = core._Uri._normalizeEscape(host, index, true);
          if (replacement == null && isNormalized) {
            index = dart.notNull(index) + 3;
            continue;
          }
          buffer == null ? buffer = new core.StringBuffer.new() : null;
          let slice = host[$substring](sectionStart, index);
          if (!isNormalized) slice = slice[$toLowerCase]();
          buffer.write(slice);
          let sourceLength = 3;
          if (replacement == null) {
            replacement = host[$substring](index, dart.notNull(index) + 3);
          } else if (replacement === "%") {
            replacement = "%25";
            sourceLength = 1;
          }
          buffer.write(replacement);
          index = dart.notNull(index) + sourceLength;
          sectionStart = index;
          isNormalized = true;
        } else if (dart.test(core._Uri._isRegNameChar(char))) {
          if (isNormalized && 65 <= char && 90 >= char) {
            buffer == null ? buffer = new core.StringBuffer.new() : null;
            if (dart.notNull(sectionStart) < dart.notNull(index)) {
              buffer.write(host[$substring](sectionStart, index));
              sectionStart = index;
            }
            isNormalized = false;
          }
          index = dart.notNull(index) + 1;
        } else if (dart.test(core._Uri._isGeneralDelimiter(char))) {
          core._Uri._fail(host, index, "Invalid character");
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
        } else {
          let sourceLength = 1;
          if ((char & 64512) === 55296 && dart.notNull(index) + 1 < dart.notNull(end)) {
            let tail = host[$codeUnitAt](dart.notNull(index) + 1);
            if ((tail & 64512) === 56320) {
              char = 65536 | (char & 1023) << 10 | tail & 1023;
              sourceLength = 2;
            }
          }
          let slice = host[$substring](sectionStart, index);
          if (!isNormalized) slice = slice[$toLowerCase]();
          t$36388$ = (t$36388 = buffer, t$36388 == null ? buffer = new core.StringBuffer.new() : t$36388);
          (() => {
            t$36388$.write(slice);
            t$36388$.write(core._Uri._escapeChar(char));
            return t$36388$;
          })();
          index = dart.notNull(index) + sourceLength;
          sectionStart = index;
        }
      }
      if (buffer == null) return host[$substring](start, end);
      if (dart.notNull(sectionStart) < dart.notNull(end)) {
        let slice = host[$substring](sectionStart, end);
        if (!isNormalized) slice = slice[$toLowerCase]();
        buffer.write(slice);
      }
      return dart.toString(buffer);
    }
    static _makeScheme(scheme, start, end) {
      if (scheme == null) dart.nullFailed(I[196], 2269, 36, "scheme");
      if (start == null) dart.nullFailed(I[196], 2269, 48, "start");
      if (end == null) dart.nullFailed(I[196], 2269, 59, "end");
      if (start == end) return "";
      let firstCodeUnit = scheme[$codeUnitAt](start);
      if (!dart.test(core._Uri._isAlphabeticCharacter(firstCodeUnit))) {
        core._Uri._fail(scheme, start, "Scheme not starting with alphabetic character");
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      let containsUpperCase = false;
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let codeUnit = scheme[$codeUnitAt](i);
        if (!dart.test(core._Uri._isSchemeCharacter(codeUnit))) {
          core._Uri._fail(scheme, i, "Illegal scheme character");
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
        }
        if (65 <= codeUnit && codeUnit <= 90) {
          containsUpperCase = true;
        }
      }
      scheme = scheme[$substring](start, end);
      if (containsUpperCase) scheme = scheme[$toLowerCase]();
      return core._Uri._canonicalizeScheme(scheme);
    }
    static _canonicalizeScheme(scheme) {
      if (scheme == null) dart.nullFailed(I[196], 2293, 44, "scheme");
      if (scheme === "http") return "http";
      if (scheme === "file") return "file";
      if (scheme === "https") return "https";
      if (scheme === "package") return "package";
      return scheme;
    }
    static _makeUserInfo(userInfo, start, end) {
      if (start == null) dart.nullFailed(I[196], 2301, 53, "start");
      if (end == null) dart.nullFailed(I[196], 2301, 64, "end");
      if (userInfo == null) return "";
      return core._Uri._normalizeOrSubstring(userInfo, start, end, core._Uri._userinfoTable);
    }
    static _makePath(path, start, end, pathSegments, scheme, hasAuthority) {
      if (start == null) dart.nullFailed(I[196], 2306, 45, "start");
      if (end == null) dart.nullFailed(I[196], 2306, 56, "end");
      if (scheme == null) dart.nullFailed(I[196], 2307, 46, "scheme");
      if (hasAuthority == null) dart.nullFailed(I[196], 2307, 59, "hasAuthority");
      let isFile = scheme === "file";
      let ensureLeadingSlash = isFile || dart.test(hasAuthority);
      let result = null;
      if (path == null) {
        if (pathSegments == null) return isFile ? "/" : "";
        result = pathSegments[$map](T$.String(), dart.fn(s => {
          if (s == null) dart.nullFailed(I[196], 2314, 17, "s");
          return core._Uri._uriEncode(core._Uri._pathCharTable, s, convert.utf8, false);
        }, T$.StringToString()))[$join]("/");
      } else if (pathSegments != null) {
        dart.throw(new core.ArgumentError.new("Both path and pathSegments specified"));
      } else {
        result = core._Uri._normalizeOrSubstring(path, start, end, core._Uri._pathCharOrSlashTable, {escapeDelimiters: true, replaceBackslash: true});
      }
      if (result[$isEmpty]) {
        if (isFile) return "/";
      } else if (ensureLeadingSlash && !result[$startsWith]("/")) {
        result = "/" + dart.notNull(result);
      }
      result = core._Uri._normalizePath(result, scheme, hasAuthority);
      return result;
    }
    static _normalizePath(path, scheme, hasAuthority) {
      if (path == null) dart.nullFailed(I[196], 2336, 39, "path");
      if (scheme == null) dart.nullFailed(I[196], 2336, 52, "scheme");
      if (hasAuthority == null) dart.nullFailed(I[196], 2336, 65, "hasAuthority");
      if (scheme[$isEmpty] && !dart.test(hasAuthority) && !path[$startsWith]("/") && !path[$startsWith]("\\")) {
        return core._Uri._normalizeRelativePath(path, scheme[$isNotEmpty] || dart.test(hasAuthority));
      }
      return core._Uri._removeDotSegments(path);
    }
    static _makeQuery(query, start, end, queryParameters) {
      if (start == null) dart.nullFailed(I[196], 2346, 48, "start");
      if (end == null) dart.nullFailed(I[196], 2346, 59, "end");
      if (query != null) {
        if (queryParameters != null) {
          dart.throw(new core.ArgumentError.new("Both query and queryParameters specified"));
        }
        return core._Uri._normalizeOrSubstring(query, start, end, core._Uri._queryCharTable, {escapeDelimiters: true});
      }
      if (queryParameters == null) return null;
      return core._Uri._makeQueryFromParameters(queryParameters);
    }
    static _makeQueryFromParameters(queryParameters) {
      if (queryParameters == null) dart.nullFailed(I[9], 693, 58, "queryParameters");
      return core._Uri._makeQueryFromParametersDefault(queryParameters);
    }
    static _makeQueryFromParametersDefault(queryParameters) {
      if (queryParameters == null) dart.nullFailed(I[196], 2367, 58, "queryParameters");
      let result = new core.StringBuffer.new();
      let separator = "";
      function writeParameter(key, value) {
        if (key == null) dart.nullFailed(I[196], 2371, 32, "key");
        result.write(separator);
        separator = "&";
        result.write(core.Uri.encodeQueryComponent(key));
        if (value != null && value[$isNotEmpty]) {
          result.write("=");
          result.write(core.Uri.encodeQueryComponent(value));
        }
      }
      dart.fn(writeParameter, T$4.StringAndStringNTovoid());
      queryParameters[$forEach](dart.fn((key, value) => {
        if (key == null) dart.nullFailed(I[196], 2381, 30, "key");
        if (value == null || typeof value == 'string') {
          writeParameter(key, T$.StringN()[_as](value));
        } else {
          let values = T$.Iterable()[_as](value);
          for (let t$36388 of values) {
            let value = T$.String()[_as](t$36388);
            writeParameter(key, value);
          }
        }
      }, T$2.StringAnddynamicTovoid()));
      return dart.toString(result);
    }
    static _makeFragment(fragment, start, end) {
      if (start == null) dart.nullFailed(I[196], 2394, 54, "start");
      if (end == null) dart.nullFailed(I[196], 2394, 65, "end");
      if (fragment == null) return null;
      return core._Uri._normalizeOrSubstring(fragment, start, end, core._Uri._queryCharTable, {escapeDelimiters: true});
    }
    static _normalizeEscape(source, index, lowerCase) {
      if (source == null) dart.nullFailed(I[196], 2411, 42, "source");
      if (index == null) dart.nullFailed(I[196], 2411, 54, "index");
      if (lowerCase == null) dart.nullFailed(I[196], 2411, 66, "lowerCase");
      if (!(source[$codeUnitAt](index) === 37)) dart.assertFailed(null, I[196], 2412, 12, "source.codeUnitAt(index) == _PERCENT");
      if (dart.notNull(index) + 2 >= source.length) {
        return "%";
      }
      let firstDigit = source[$codeUnitAt](dart.notNull(index) + 1);
      let secondDigit = source[$codeUnitAt](dart.notNull(index) + 2);
      let firstDigitValue = _internal.hexDigitValue(firstDigit);
      let secondDigitValue = _internal.hexDigitValue(secondDigit);
      if (dart.notNull(firstDigitValue) < 0 || dart.notNull(secondDigitValue) < 0) {
        return "%";
      }
      let value = dart.notNull(firstDigitValue) * 16 + dart.notNull(secondDigitValue);
      if (dart.test(core._Uri._isUnreservedChar(value))) {
        if (dart.test(lowerCase) && 65 <= value && 90 >= value) {
          value = (value | 32) >>> 0;
        }
        return core.String.fromCharCode(value);
      }
      if (firstDigit >= 97 || secondDigit >= 97) {
        return source[$substring](index, dart.notNull(index) + 3)[$toUpperCase]();
      }
      return null;
    }
    static _escapeChar(char) {
      if (char == null) dart.nullFailed(I[196], 2439, 33, "char");
      if (!(dart.notNull(char) <= 1114111)) dart.assertFailed(null, I[196], 2440, 12, "char <= 0x10ffff");
      let codeUnits = null;
      if (dart.notNull(char) < 128) {
        codeUnits = _native_typed_data.NativeUint8List.new(3);
        codeUnits[$_set](0, 37);
        codeUnits[$_set](1, "0123456789ABCDEF"[$codeUnitAt](char[$rightShift](4)));
        codeUnits[$_set](2, "0123456789ABCDEF"[$codeUnitAt](dart.notNull(char) & 15));
      } else {
        let flag = 192;
        let encodedBytes = 2;
        if (dart.notNull(char) > 2047) {
          flag = 224;
          encodedBytes = 3;
          if (dart.notNull(char) > 65535) {
            encodedBytes = 4;
            flag = 240;
          }
        }
        codeUnits = _native_typed_data.NativeUint8List.new(3 * encodedBytes);
        let index = 0;
        while ((encodedBytes = encodedBytes - 1) >= 0) {
          let byte = (char[$rightShift](6 * encodedBytes) & 63 | flag) >>> 0;
          codeUnits[$_set](index, 37);
          codeUnits[$_set](index + 1, "0123456789ABCDEF"[$codeUnitAt](byte[$rightShift](4)));
          codeUnits[$_set](index + 2, "0123456789ABCDEF"[$codeUnitAt](byte & 15));
          index = index + 3;
          flag = 128;
        }
      }
      return core.String.fromCharCodes(codeUnits);
    }
    static _normalizeOrSubstring(component, start, end, charTable, opts) {
      let t$36389;
      if (component == null) dart.nullFailed(I[196], 2479, 14, "component");
      if (start == null) dart.nullFailed(I[196], 2479, 29, "start");
      if (end == null) dart.nullFailed(I[196], 2479, 40, "end");
      if (charTable == null) dart.nullFailed(I[196], 2479, 55, "charTable");
      let escapeDelimiters = opts && 'escapeDelimiters' in opts ? opts.escapeDelimiters : false;
      if (escapeDelimiters == null) dart.nullFailed(I[196], 2480, 13, "escapeDelimiters");
      let replaceBackslash = opts && 'replaceBackslash' in opts ? opts.replaceBackslash : false;
      if (replaceBackslash == null) dart.nullFailed(I[196], 2480, 44, "replaceBackslash");
      t$36389 = core._Uri._normalize(component, start, end, charTable, {escapeDelimiters: escapeDelimiters, replaceBackslash: replaceBackslash});
      return t$36389 == null ? component[$substring](start, end) : t$36389;
    }
    static _normalize(component, start, end, charTable, opts) {
      let t$36389, t$36389$;
      if (component == null) dart.nullFailed(I[196], 2497, 14, "component");
      if (start == null) dart.nullFailed(I[196], 2497, 29, "start");
      if (end == null) dart.nullFailed(I[196], 2497, 40, "end");
      if (charTable == null) dart.nullFailed(I[196], 2497, 55, "charTable");
      let escapeDelimiters = opts && 'escapeDelimiters' in opts ? opts.escapeDelimiters : false;
      if (escapeDelimiters == null) dart.nullFailed(I[196], 2498, 13, "escapeDelimiters");
      let replaceBackslash = opts && 'replaceBackslash' in opts ? opts.replaceBackslash : false;
      if (replaceBackslash == null) dart.nullFailed(I[196], 2498, 44, "replaceBackslash");
      let buffer = null;
      let sectionStart = start;
      let index = start;
      while (dart.notNull(index) < dart.notNull(end)) {
        let char = component[$codeUnitAt](index);
        if (char < 127 && (dart.notNull(charTable[$_get](char[$rightShift](4))) & 1 << (char & 15)) !== 0) {
          index = dart.notNull(index) + 1;
        } else {
          let replacement = null;
          let sourceLength = null;
          if (char === 37) {
            replacement = core._Uri._normalizeEscape(component, index, false);
            if (replacement == null) {
              index = dart.notNull(index) + 3;
              continue;
            }
            if ("%" === replacement) {
              replacement = "%25";
              sourceLength = 1;
            } else {
              sourceLength = 3;
            }
          } else if (char === 92 && dart.test(replaceBackslash)) {
            replacement = "/";
            sourceLength = 1;
          } else if (!dart.test(escapeDelimiters) && dart.test(core._Uri._isGeneralDelimiter(char))) {
            core._Uri._fail(component, index, "Invalid character");
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
            dart.throw("unreachable");
          } else {
            sourceLength = 1;
            if ((char & 64512) === 55296) {
              if (dart.notNull(index) + 1 < dart.notNull(end)) {
                let tail = component[$codeUnitAt](dart.notNull(index) + 1);
                if ((tail & 64512) === 56320) {
                  sourceLength = 2;
                  char = 65536 | (char & 1023) << 10 | tail & 1023;
                }
              }
            }
            replacement = core._Uri._escapeChar(char);
          }
          t$36389$ = (t$36389 = buffer, t$36389 == null ? buffer = new core.StringBuffer.new() : t$36389);
          (() => {
            t$36389$.write(component[$substring](sectionStart, index));
            t$36389$.write(replacement);
            return t$36389$;
          })();
          index = dart.notNull(index) + dart.notNull(sourceLength);
          sectionStart = index;
        }
      }
      if (buffer == null) {
        return null;
      }
      if (dart.notNull(sectionStart) < dart.notNull(end)) {
        buffer.write(component[$substring](sectionStart, end));
      }
      return dart.toString(buffer);
    }
    static _isSchemeCharacter(ch) {
      if (ch == null) dart.nullFailed(I[196], 2561, 38, "ch");
      return dart.notNull(ch) < 128 && (dart.notNull(core._Uri._schemeTable[$_get](ch[$rightShift](4))) & 1 << (dart.notNull(ch) & 15)) !== 0;
    }
    static _isGeneralDelimiter(ch) {
      if (ch == null) dart.nullFailed(I[196], 2565, 39, "ch");
      return dart.notNull(ch) <= 93 && (dart.notNull(core._Uri._genDelimitersTable[$_get](ch[$rightShift](4))) & 1 << (dart.notNull(ch) & 15)) !== 0;
    }
    get isAbsolute() {
      return this.scheme !== "" && this.fragment === "";
    }
    [_mergePaths](base, reference) {
      if (base == null) dart.nullFailed(I[196], 2573, 29, "base");
      if (reference == null) dart.nullFailed(I[196], 2573, 42, "reference");
      let backCount = 0;
      let refStart = 0;
      while (reference[$startsWith]("../", refStart)) {
        refStart = refStart + 3;
        backCount = backCount + 1;
      }
      let baseEnd = base[$lastIndexOf]("/");
      while (baseEnd > 0 && backCount > 0) {
        let newEnd = base[$lastIndexOf]("/", baseEnd - 1);
        if (newEnd < 0) {
          break;
        }
        let delta = baseEnd - newEnd;
        if ((delta === 2 || delta === 3) && base[$codeUnitAt](newEnd + 1) === 46 && (delta === 2 || base[$codeUnitAt](newEnd + 2) === 46)) {
          break;
        }
        baseEnd = newEnd;
        backCount = backCount - 1;
      }
      return base[$replaceRange](baseEnd + 1, null, reference[$substring](refStart - 3 * backCount));
    }
    static _mayContainDotSegments(path) {
      if (path == null) dart.nullFailed(I[196], 2611, 45, "path");
      if (path[$startsWith](".")) return true;
      let index = path[$indexOf]("/.");
      return index !== -1;
    }
    static _removeDotSegments(path) {
      if (path == null) dart.nullFailed(I[196], 2622, 43, "path");
      if (!dart.test(core._Uri._mayContainDotSegments(path))) return path;
      if (!path[$isNotEmpty]) dart.assertFailed(null, I[196], 2624, 12, "path.isNotEmpty");
      let output = G.JSArrayOfString().of([]);
      let appendSlash = false;
      for (let segment of path[$split]("/")) {
        appendSlash = false;
        if (segment === "..") {
          if (dart.test(output[$isNotEmpty])) {
            output[$removeLast]();
            if (dart.test(output[$isEmpty])) {
              output[$add]("");
            }
          }
          appendSlash = true;
        } else if ("." === segment) {
          appendSlash = true;
        } else {
          output[$add](segment);
        }
      }
      if (appendSlash) output[$add]("");
      return output[$join]("/");
    }
    static _normalizeRelativePath(path, allowScheme) {
      if (path == null) dart.nullFailed(I[196], 2658, 47, "path");
      if (allowScheme == null) dart.nullFailed(I[196], 2658, 58, "allowScheme");
      if (!!path[$startsWith]("/")) dart.assertFailed(null, I[196], 2659, 12, "!path.startsWith('/')");
      if (!dart.test(core._Uri._mayContainDotSegments(path))) {
        if (!dart.test(allowScheme)) path = core._Uri._escapeScheme(path);
        return path;
      }
      if (!path[$isNotEmpty]) dart.assertFailed(null, I[196], 2664, 12, "path.isNotEmpty");
      let output = G.JSArrayOfString().of([]);
      let appendSlash = false;
      for (let segment of path[$split]("/")) {
        appendSlash = false;
        if (".." === segment) {
          if (!dart.test(output[$isEmpty]) && output[$last] !== "..") {
            output[$removeLast]();
            appendSlash = true;
          } else {
            output[$add]("..");
          }
        } else if ("." === segment) {
          appendSlash = true;
        } else {
          output[$add](segment);
        }
      }
      if (dart.test(output[$isEmpty]) || output[$length] === 1 && output[$_get](0)[$isEmpty]) {
        return "./";
      }
      if (appendSlash || output[$last] === "..") output[$add]("");
      if (!dart.test(allowScheme)) output[$_set](0, core._Uri._escapeScheme(output[$_get](0)));
      return output[$join]("/");
    }
    static _escapeScheme(path) {
      if (path == null) dart.nullFailed(I[196], 2691, 38, "path");
      if (path.length >= 2 && dart.test(core._Uri._isAlphabeticCharacter(path[$codeUnitAt](0)))) {
        for (let i = 1; i < path.length; i = i + 1) {
          let char = path[$codeUnitAt](i);
          if (char === 58) {
            return path[$substring](0, i) + "%3A" + path[$substring](i + 1);
          }
          if (char > 127 || (dart.notNull(core._Uri._schemeTable[$_get](char[$rightShift](4))) & 1 << (char & 15)) === 0) {
            break;
          }
        }
      }
      return path;
    }
    resolve(reference) {
      if (reference == null) dart.nullFailed(I[196], 2707, 22, "reference");
      return this.resolveUri(core.Uri.parse(reference));
    }
    static _packageNameEnd(uri, path) {
      if (uri == null) dart.nullFailed(I[196], 2721, 34, "uri");
      if (path == null) dart.nullFailed(I[196], 2721, 46, "path");
      if (dart.test(uri.isScheme("package")) && !dart.test(uri.hasAuthority)) {
        return core._skipPackageNameChars(path, 0, path.length);
      }
      return -1;
    }
    resolveUri(reference) {
      if (reference == null) dart.nullFailed(I[196], 2728, 22, "reference");
      let targetScheme = null;
      let targetUserInfo = "";
      let targetHost = null;
      let targetPort = null;
      let targetPath = null;
      let targetQuery = null;
      let split = 0;
      if (reference.scheme[$isNotEmpty]) {
        if (T$8._PlatformUri()[_is](reference)) return reference;
        targetScheme = reference.scheme;
        if (dart.test(reference.hasAuthority)) {
          targetUserInfo = reference.userInfo;
          targetHost = reference.host;
          targetPort = dart.test(reference.hasPort) ? reference.port : null;
        }
        targetPath = core._Uri._removeDotSegments(reference.path);
        if (dart.test(reference.hasQuery)) {
          targetQuery = reference.query;
        }
      } else {
        targetScheme = this.scheme;
        if (dart.test(reference.hasAuthority)) {
          if (T$8._PlatformUri()[_is](reference)) {
            return reference.replace({scheme: targetScheme});
          }
          targetUserInfo = reference.userInfo;
          targetHost = reference.host;
          targetPort = core._Uri._makePort(dart.test(reference.hasPort) ? reference.port : null, targetScheme);
          targetPath = core._Uri._removeDotSegments(reference.path);
          if (dart.test(reference.hasQuery)) targetQuery = reference.query;
          split = 1;
        } else {
          targetUserInfo = this[_userInfo$];
          targetHost = this[_host$];
          targetPort = this[_port$];
          if (dart.test(reference.hasEmptyPath)) {
            targetPath = this.path;
            if (dart.test(reference.hasQuery)) {
              split = 3;
              targetQuery = reference.query;
            } else {
              targetQuery = this[_query$];
              split = 4;
            }
          } else {
            let basePath = this.path;
            let packageNameEnd = core._Uri._packageNameEnd(this, basePath);
            split = 2;
            if (dart.notNull(packageNameEnd) > 0) {
              if (!(targetScheme === "package")) dart.assertFailed(null, I[196], 2792, 20, "targetScheme == \"package\"");
              if (!!dart.test(this.hasAuthority)) dart.assertFailed(null, I[196], 2793, 20, "!this.hasAuthority");
              if (!!dart.test(this.hasEmptyPath)) dart.assertFailed(null, I[196], 2794, 20, "!this.hasEmptyPath");
              let packageName = basePath[$substring](0, packageNameEnd);
              if (dart.test(reference.hasAbsolutePath)) {
                targetPath = packageName + dart.notNull(core._Uri._removeDotSegments(reference.path));
              } else {
                targetPath = packageName + dart.notNull(core._Uri._removeDotSegments(this[_mergePaths](basePath[$substring](packageName.length), reference.path)));
              }
            } else if (dart.test(reference.hasAbsolutePath)) {
              targetPath = core._Uri._removeDotSegments(reference.path);
            } else {
              if (dart.test(this.hasEmptyPath)) {
                if (!dart.test(this.hasAuthority)) {
                  if (!dart.test(this.hasScheme)) {
                    targetPath = reference.path;
                  } else {
                    targetPath = core._Uri._removeDotSegments(reference.path);
                  }
                } else {
                  targetPath = core._Uri._removeDotSegments("/" + dart.notNull(reference.path));
                }
              } else {
                let mergedPath = this[_mergePaths](this.path, reference.path);
                if (dart.test(this.hasScheme) || dart.test(this.hasAuthority) || dart.test(this.hasAbsolutePath)) {
                  targetPath = core._Uri._removeDotSegments(mergedPath);
                } else {
                  targetPath = core._Uri._normalizeRelativePath(mergedPath, dart.test(this.hasScheme) || dart.test(this.hasAuthority));
                }
              }
            }
            if (dart.test(reference.hasQuery)) {
              targetQuery = reference.query;
            }
          }
        }
      }
      let fragment = dart.test(reference.hasFragment) ? reference.fragment : null;
      if (!T$8._PlatformUri()[_is](reference)) {
        if (split === 0) {
          targetScheme = core._Uri._makeScheme(targetScheme, 0, targetScheme.length);
        }
        if (split <= 1) {
          if (targetUserInfo != null) {
            targetUserInfo = core._Uri._makeUserInfo(targetUserInfo, 0, targetUserInfo.length);
          }
          if (targetPort != null) {
            targetPort = core._Uri._makePort(targetPort, targetScheme);
          }
          if (targetHost != null && targetHost[$isNotEmpty]) {
            targetHost = core._Uri._makeHost(targetHost, 0, targetHost.length, false);
          }
        }
        if (split <= 3) {
          targetPath = core._Uri._makePath(targetPath, 0, targetPath.length, null, targetScheme, targetHost != null);
        }
        if (split <= 3 && targetQuery != null) {
          targetQuery = core._Uri._makeQuery(targetQuery, 0, targetQuery.length, null);
        }
        if (fragment != null) {
          fragment = core._Uri._makeFragment(fragment, 0, fragment.length);
        }
      }
      return new core._Uri._internal(targetScheme, targetUserInfo, targetHost, targetPort, targetPath, targetQuery, fragment);
    }
    get hasScheme() {
      return this.scheme[$isNotEmpty];
    }
    get hasAuthority() {
      return this[_host$] != null;
    }
    get hasPort() {
      return this[_port$] != null;
    }
    get hasQuery() {
      return this[_query$] != null;
    }
    get hasFragment() {
      return this[_fragment$] != null;
    }
    get hasEmptyPath() {
      return this.path[$isEmpty];
    }
    get hasAbsolutePath() {
      return this.path[$startsWith]("/");
    }
    get origin() {
      if (this.scheme === "") {
        dart.throw(new core.StateError.new("Cannot use origin without a scheme: " + dart.strSafe(this)));
      }
      if (this.scheme !== "http" && this.scheme !== "https") {
        dart.throw(new core.StateError.new("Origin is only applicable schemes http and https: " + dart.strSafe(this)));
      }
      let host = this[_host$];
      if (host == null || host === "") {
        dart.throw(new core.StateError.new("A " + dart.str(this.scheme) + ": URI should have a non-empty host name: " + dart.strSafe(this)));
      }
      let port = this[_port$];
      if (port == null) return dart.str(this.scheme) + "://" + dart.str(host);
      return dart.str(this.scheme) + "://" + dart.str(host) + ":" + dart.str(port);
    }
    toFilePath(opts) {
      let t$36389;
      let windows = opts && 'windows' in opts ? opts.windows : null;
      if (this.scheme !== "" && this.scheme !== "file") {
        dart.throw(new core.UnsupportedError.new("Cannot extract a file path from a " + dart.str(this.scheme) + " URI"));
      }
      if (this.query !== "") {
        dart.throw(new core.UnsupportedError.new("Cannot extract a file path from a URI with a query component"));
      }
      if (this.fragment !== "") {
        dart.throw(new core.UnsupportedError.new("Cannot extract a file path from a URI with a fragment component"));
      }
      return dart.test((t$36389 = windows, t$36389 == null ? core._Uri._isWindows : t$36389)) ? core._Uri._toWindowsFilePath(this) : this[_toFilePath]();
    }
    [_toFilePath]() {
      if (dart.test(this.hasAuthority) && this.host !== "") {
        dart.throw(new core.UnsupportedError.new("Cannot extract a non-Windows file path from a file URI with an authority"));
      }
      let pathSegments = this.pathSegments;
      core._Uri._checkNonWindowsPathReservedCharacters(pathSegments, false);
      let result = new core.StringBuffer.new();
      if (dart.test(this.hasAbsolutePath)) result.write("/");
      result.writeAll(pathSegments, "/");
      return dart.toString(result);
    }
    static _toWindowsFilePath(uri) {
      if (uri == null) dart.nullFailed(I[196], 2937, 40, "uri");
      let hasDriveLetter = false;
      let segments = uri.pathSegments;
      if (dart.notNull(segments[$length]) > 0 && segments[$_get](0).length === 2 && segments[$_get](0)[$codeUnitAt](1) === 58) {
        core._Uri._checkWindowsDriveLetter(segments[$_get](0)[$codeUnitAt](0), false);
        core._Uri._checkWindowsPathReservedCharacters(segments, false, 1);
        hasDriveLetter = true;
      } else {
        core._Uri._checkWindowsPathReservedCharacters(segments, false, 0);
      }
      let result = new core.StringBuffer.new();
      if (dart.test(uri.hasAbsolutePath) && !hasDriveLetter) result.write("\\");
      if (dart.test(uri.hasAuthority)) {
        let host = uri.host;
        if (host[$isNotEmpty]) {
          result.write("\\");
          result.write(host);
          result.write("\\");
        }
      }
      result.writeAll(segments, "\\");
      if (hasDriveLetter && segments[$length] === 1) result.write("\\");
      return dart.toString(result);
    }
    [_writeAuthority](ss) {
      if (ss == null) dart.nullFailed(I[196], 2964, 35, "ss");
      if (this[_userInfo$][$isNotEmpty]) {
        ss.write(this[_userInfo$]);
        ss.write("@");
      }
      if (this[_host$] != null) ss.write(this[_host$]);
      if (this[_port$] != null) {
        ss.write(":");
        ss.write(this[_port$]);
      }
    }
    get data() {
      return this.scheme === "data" ? core.UriData.fromUri(this) : null;
    }
    toString() {
      return this[_text$];
    }
    [_initializeText]() {
      let t$36389, t$36389$, t$36389$0;
      let sb = new core.StringBuffer.new();
      if (this.scheme[$isNotEmpty]) {
        t$36389 = sb;
        (() => {
          t$36389.write(this.scheme);
          t$36389.write(":");
          return t$36389;
        })();
      }
      if (dart.test(this.hasAuthority) || this.scheme === "file") {
        sb.write("//");
        this[_writeAuthority](sb);
      }
      sb.write(this.path);
      if (this[_query$] != null) {
        t$36389$ = sb;
        (() => {
          t$36389$.write("?");
          t$36389$.write(this[_query$]);
          return t$36389$;
        })();
      }
      if (this[_fragment$] != null) {
        t$36389$0 = sb;
        (() => {
          t$36389$0.write("#");
          t$36389$0.write(this[_fragment$]);
          return t$36389$0;
        })();
      }
      return dart.toString(sb);
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) return true;
      return T$2.Uri()[_is](other) && this.scheme == other.scheme && this.hasAuthority == other.hasAuthority && this.userInfo == other.userInfo && this.host == other.host && this.port == other.port && this.path == other.path && this.hasQuery == other.hasQuery && this.query == other.query && this.hasFragment == other.hasFragment && this.fragment == other.fragment;
    }
    static _createList() {
      return G.JSArrayOfString().of([]);
    }
    static _splitQueryStringAll(query, opts) {
      if (query == null) dart.nullFailed(I[196], 3027, 64, "query");
      let encoding = opts && 'encoding' in opts ? opts.encoding : C[155] || CT.C155;
      if (encoding == null) dart.nullFailed(I[196], 3028, 17, "encoding");
      let result = new (G$.IdentityMapOfString$ListOfString()).new();
      let i = 0;
      let start = 0;
      let equalsIndex = -1;
      function parsePair(start, equalsIndex, end) {
        if (start == null) dart.nullFailed(I[196], 3034, 24, "start");
        if (equalsIndex == null) dart.nullFailed(I[196], 3034, 35, "equalsIndex");
        if (end == null) dart.nullFailed(I[196], 3034, 52, "end");
        let key = null;
        let value = null;
        if (start == end) return;
        if (dart.notNull(equalsIndex) < 0) {
          key = core._Uri._uriDecode(query, start, end, encoding, true);
          value = "";
        } else {
          key = core._Uri._uriDecode(query, start, equalsIndex, encoding, true);
          value = core._Uri._uriDecode(query, dart.notNull(equalsIndex) + 1, end, encoding, true);
        }
        result[$putIfAbsent](key, C[483] || CT.C483)[$add](value);
      }
      dart.fn(parsePair, T$8.intAndintAndintTovoid());
      while (i < query.length) {
        let char = query[$codeUnitAt](i);
        if (char === 61) {
          if (equalsIndex < 0) equalsIndex = i;
        } else if (char === 38) {
          parsePair(start, equalsIndex, i);
          start = i + 1;
          equalsIndex = -1;
        }
        i = i + 1;
      }
      parsePair(start, equalsIndex, i);
      return result;
    }
    static _uriEncode(canonicalTable, text, encoding, spaceToPlus) {
      if (canonicalTable == null) dart.nullFailed(I[9], 664, 38, "canonicalTable");
      if (text == null) dart.nullFailed(I[9], 664, 61, "text");
      if (encoding == null) dart.nullFailed(I[9], 665, 16, "encoding");
      if (spaceToPlus == null) dart.nullFailed(I[9], 665, 31, "spaceToPlus");
      if (encoding == convert.utf8 && dart.test(core._Uri._needsNoEncoding.hasMatch(text))) {
        return text;
      }
      let result = new core.StringBuffer.new("");
      let bytes = encoding.encode(text);
      for (let i = 0; i < dart.notNull(bytes[$length]); i = i + 1) {
        let byte = bytes[$_get](i);
        if (dart.notNull(byte) < 128 && (dart.notNull(canonicalTable[$_get](byte[$rightShift](4))) & 1 << (dart.notNull(byte) & 15)) !== 0) {
          result.writeCharCode(byte);
        } else if (dart.test(spaceToPlus) && byte === 32) {
          result.write("+");
        } else {
          result.write("%");
          result.write("0123456789ABCDEF"[$_get](dart.notNull(byte) >> 4 & 15));
          result.write("0123456789ABCDEF"[$_get](dart.notNull(byte) & 15));
        }
      }
      return dart.toString(result);
    }
    static _hexCharPairToByte(s, pos) {
      if (s == null) dart.nullFailed(I[196], 3068, 40, "s");
      if (pos == null) dart.nullFailed(I[196], 3068, 47, "pos");
      let byte = 0;
      for (let i = 0; i < 2; i = i + 1) {
        let charCode = s[$codeUnitAt](dart.notNull(pos) + i);
        if (48 <= charCode && charCode <= 57) {
          byte = byte * 16 + charCode - 48;
        } else {
          charCode = (charCode | 32) >>> 0;
          if (97 <= charCode && charCode <= 102) {
            byte = byte * 16 + charCode - 87;
          } else {
            dart.throw(new core.ArgumentError.new("Invalid URL encoding"));
          }
        }
      }
      return byte;
    }
    static _uriDecode(text, start, end, encoding, plusToSpace) {
      if (text == null) dart.nullFailed(I[196], 3098, 14, "text");
      if (start == null) dart.nullFailed(I[196], 3098, 24, "start");
      if (end == null) dart.nullFailed(I[196], 3098, 35, "end");
      if (encoding == null) dart.nullFailed(I[196], 3098, 49, "encoding");
      if (plusToSpace == null) dart.nullFailed(I[196], 3098, 64, "plusToSpace");
      if (!(0 <= dart.notNull(start))) dart.assertFailed(null, I[196], 3099, 12, "0 <= start");
      if (!(dart.notNull(start) <= dart.notNull(end))) dart.assertFailed(null, I[196], 3100, 12, "start <= end");
      if (!(dart.notNull(end) <= text.length)) dart.assertFailed(null, I[196], 3101, 12, "end <= text.length");
      let simple = true;
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let codeUnit = text[$codeUnitAt](i);
        if (codeUnit > 127 || codeUnit === 37 || dart.test(plusToSpace) && codeUnit === 43) {
          simple = false;
          break;
        }
      }
      let bytes = null;
      if (simple) {
        if (dart.equals(convert.utf8, encoding) || dart.equals(convert.latin1, encoding) || dart.equals(convert.ascii, encoding)) {
          return text[$substring](start, end);
        } else {
          bytes = text[$substring](start, end)[$codeUnits];
        }
      } else {
        bytes = G.JSArrayOfint().of([]);
        for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
          let codeUnit = text[$codeUnitAt](i);
          if (codeUnit > 127) {
            dart.throw(new core.ArgumentError.new("Illegal percent encoding in URI"));
          }
          if (codeUnit === 37) {
            if (dart.notNull(i) + 3 > text.length) {
              dart.throw(new core.ArgumentError.new("Truncated URI"));
            }
            bytes[$add](core._Uri._hexCharPairToByte(text, dart.notNull(i) + 1));
            i = dart.notNull(i) + 2;
          } else if (dart.test(plusToSpace) && codeUnit === 43) {
            bytes[$add](32);
          } else {
            bytes[$add](codeUnit);
          }
        }
      }
      return encoding.decode(bytes);
    }
    static _isAlphabeticCharacter(codeUnit) {
      if (codeUnit == null) dart.nullFailed(I[196], 3143, 42, "codeUnit");
      let lowerCase = (dart.notNull(codeUnit) | 32) >>> 0;
      return 97 <= lowerCase && lowerCase <= 122;
    }
    static _isUnreservedChar(char) {
      if (char == null) dart.nullFailed(I[196], 3148, 37, "char");
      return dart.notNull(char) < 127 && (dart.notNull(core._Uri._unreservedTable[$_get](char[$rightShift](4))) & 1 << (dart.notNull(char) & 15)) !== 0;
    }
  };
  (core._Uri._internal = function(scheme, _userInfo, _host, _port, path, _query, _fragment) {
    if (scheme == null) dart.nullFailed(I[196], 1577, 23, "scheme");
    if (_userInfo == null) dart.nullFailed(I[196], 1577, 36, "_userInfo");
    if (path == null) dart.nullFailed(I[196], 1577, 76, "path");
    this[___Uri__text] = null;
    this[___Uri__text_isSet] = false;
    this[___Uri_pathSegments] = null;
    this[___Uri_pathSegments_isSet] = false;
    this[___Uri_hashCode] = null;
    this[___Uri_hashCode_isSet] = false;
    this[___Uri_queryParameters] = null;
    this[___Uri_queryParameters_isSet] = false;
    this[___Uri_queryParametersAll] = null;
    this[___Uri_queryParametersAll_isSet] = false;
    this.scheme = scheme;
    this[_userInfo$] = _userInfo;
    this[_host$] = _host;
    this[_port$] = _port;
    this.path = path;
    this[_query$] = _query;
    this[_fragment$] = _fragment;
    ;
  }).prototype = core._Uri.prototype;
  dart.addRtiResources(core._Uri, ["core|_Uri", "core|_PlatformUri", "core|Uri"]);
  dart.setMethodSignature(core._Uri, () => dart.global.Object.setPrototypeOf({
    isScheme: T$.StringTobool(),
    replace: T$8.__ToUri(),
    removeFragment: T$3.VoidToUri(),
    normalizePath: T$3.VoidToUri(),
    [_mergePaths]: T$.StringAndStringToString(),
    resolve: T$8.StringToUri(),
    resolveUri: T$8.UriToUri(),
    toFilePath: T$8.__ToString$1(),
    [_toFilePath]: T$.VoidToString(),
    [_writeAuthority]: T$2.StringSinkTovoid(),
    [_initializeText]: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core._Uri))));
  dart.setStaticMethodSignature(core._Uri, () => ['notSimple', 'new', 'http', 'https', '_defaultPort', '_fail', '_makeHttpUri', 'file', 'directory', '_checkNonWindowsPathReservedCharacters', '_checkWindowsPathReservedCharacters', '_checkWindowsDriveLetter', '_makeFileUri', '_makeWindowsFileUrl', '_computePathSegments', '_computeQueryParametersAll', '_makePort', '_makeHost', '_checkZoneID', '_isZoneIDChar', '_normalizeZoneID', '_isRegNameChar', '_normalizeRegName', '_makeScheme', '_canonicalizeScheme', '_makeUserInfo', '_makePath', '_normalizePath', '_makeQuery', '_makeQueryFromParameters', '_makeQueryFromParametersDefault', '_makeFragment', '_normalizeEscape', '_escapeChar', '_normalizeOrSubstring', '_normalize', '_isSchemeCharacter', '_isGeneralDelimiter', '_mayContainDotSegments', '_removeDotSegments', '_normalizeRelativePath', '_escapeScheme', '_packageNameEnd', '_toWindowsFilePath', '_createList', '_splitQueryStringAll', '_uriEncode', '_hexCharPairToByte', '_uriDecode', '_isAlphabeticCharacter', '_isUnreservedChar']);
  dart.setGetterSignature(core._Uri, () => dart.global.Object.setPrototypeOf({
    [_text$]: T$.String(),
    pathSegments: T$0.ListOfString(),
    queryParameters: T$2.MapOfString$String(),
    queryParametersAll: T$8.MapOfString$ListOfString(),
    authority: T$.String(),
    userInfo: T$.String(),
    host: T$.String(),
    port: T$.int(),
    query: T$.String(),
    fragment: T$.String(),
    isAbsolute: T$.bool(),
    hasScheme: T$.bool(),
    hasAuthority: T$.bool(),
    hasPort: T$.bool(),
    hasQuery: T$.bool(),
    hasFragment: T$.bool(),
    hasEmptyPath: T$.bool(),
    hasAbsolutePath: T$.bool(),
    origin: T$.String(),
    data: T$8.UriDataN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core._Uri))));
  dart.setStaticGetterSignature(core._Uri, () => ['_isWindows']);
  dart.setLibraryUri(core._Uri, I[11]);
  dart.setFieldSignature(core._Uri, () => dart.global.Object.setPrototypeOf({
    scheme: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_userInfo$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_host$]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_port$]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    path: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_query$]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fragment$]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [___Uri__text]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___Uri__text_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___Uri_pathSegments]: {type: T$.ListNOfString(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___Uri_pathSegments_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___Uri_hashCode]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___Uri_hashCode_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___Uri_queryParameters]: {type: T$8.MapNOfString$String(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___Uri_queryParameters_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___Uri_queryParametersAll]: {type: T$8.MapNOfString$ListOfString(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___Uri_queryParametersAll_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core._Uri))));
  dart.setStaticFieldSignature(core._Uri, () => ['_needsNoEncoding', '_unreservedTable', '_unreserved2396Table', '_encodeFullTable', '_schemeTable', '_genDelimitersTable', '_userinfoTable', '_regNameTable', '_pathCharTable', '_pathCharOrSlashTable', '_queryCharTable', '_zoneIDTable']);
  dart.defineExtensionMethods(core._Uri, ['toString', '_equals']);
  dart.defineExtensionAccessors(core._Uri, ['hashCode']);
  dart.defineLazy(core._Uri, {
    /*core._Uri._needsNoEncoding*/get _needsNoEncoding() {
      return core.RegExp.new("^[\\-\\.0-9A-Z_a-z~]*$");
    },
    /*core._Uri._unreservedTable*/get _unreservedTable() {
      return C[484] || CT.C484;
    },
    /*core._Uri._unreserved2396Table*/get _unreserved2396Table() {
      return C[485] || CT.C485;
    },
    /*core._Uri._encodeFullTable*/get _encodeFullTable() {
      return C[486] || CT.C486;
    },
    /*core._Uri._schemeTable*/get _schemeTable() {
      return C[487] || CT.C487;
    },
    /*core._Uri._genDelimitersTable*/get _genDelimitersTable() {
      return C[488] || CT.C488;
    },
    /*core._Uri._userinfoTable*/get _userinfoTable() {
      return C[489] || CT.C489;
    },
    /*core._Uri._regNameTable*/get _regNameTable() {
      return C[490] || CT.C490;
    },
    /*core._Uri._pathCharTable*/get _pathCharTable() {
      return C[491] || CT.C491;
    },
    /*core._Uri._pathCharOrSlashTable*/get _pathCharOrSlashTable() {
      return C[492] || CT.C492;
    },
    /*core._Uri._queryCharTable*/get _queryCharTable() {
      return C[493] || CT.C493;
    },
    /*core._Uri._zoneIDTable*/get _zoneIDTable() {
      return C[484] || CT.C484;
    }
  }, false);
  var _separatorIndices$ = dart.privateName(core, "_separatorIndices");
  var _uriCache$ = dart.privateName(core, "_uriCache");
  var _computeUri = dart.privateName(core, "_computeUri");
  var _findCharsetIndex = dart.privateName(core, "_findCharsetIndex");
  core.UriData = class UriData extends core.Object {
    static ['_#_#tearOff'](_text, _separatorIndices, _uriCache) {
      if (_text == null) dart.nullFailed(I[196], 3436, 18, "_text");
      if (_separatorIndices == null) dart.nullFailed(I[196], 3436, 30, "_separatorIndices");
      return new core.UriData.__(_text, _separatorIndices, _uriCache);
    }
    static fromString(content, opts) {
      let t$36389;
      if (content == null) dart.nullFailed(I[196], 3445, 37, "content");
      let mimeType = opts && 'mimeType' in opts ? opts.mimeType : null;
      let encoding = opts && 'encoding' in opts ? opts.encoding : null;
      let parameters = opts && 'parameters' in opts ? opts.parameters : null;
      let base64 = opts && 'base64' in opts ? opts.base64 : false;
      if (base64 == null) dart.nullFailed(I[196], 3449, 12, "base64");
      let buffer = new core.StringBuffer.new();
      let indices = G.JSArrayOfint().of([-1]);
      let charsetName = (t$36389 = parameters, t$36389 == null ? null : t$36389[$_get]("charset"));
      let encodingName = null;
      if (encoding == null) {
        if (charsetName != null) {
          encoding = convert.Encoding.getByName(charsetName);
        }
      } else if (charsetName == null) {
        encodingName = encoding.name;
      }
      encoding == null ? encoding = convert.ascii : null;
      core.UriData._writeUri(mimeType, encodingName, parameters, buffer, indices);
      indices[$add](buffer.length);
      if (dart.test(base64)) {
        buffer.write(";base64,");
        indices[$add](dart.notNull(buffer.length) - 1);
        buffer.write(encoding.fuse(T$.String(), core.UriData._base64).encode(content));
      } else {
        buffer.write(",");
        core.UriData._uriEncodeBytes(core.UriData._uricTable, encoding.encode(content), buffer);
      }
      return new core.UriData.__(dart.toString(buffer), indices, null);
    }
    static ['_#fromString#tearOff'](content, opts) {
      if (content == null) dart.nullFailed(I[196], 3445, 37, "content");
      let mimeType = opts && 'mimeType' in opts ? opts.mimeType : null;
      let encoding = opts && 'encoding' in opts ? opts.encoding : null;
      let parameters = opts && 'parameters' in opts ? opts.parameters : null;
      let base64 = opts && 'base64' in opts ? opts.base64 : false;
      if (base64 == null) dart.nullFailed(I[196], 3449, 12, "base64");
      return core.UriData.fromString(content, {mimeType: mimeType, encoding: encoding, parameters: parameters, base64: base64});
    }
    static fromBytes(bytes, opts) {
      if (bytes == null) dart.nullFailed(I[196], 3480, 39, "bytes");
      let mimeType = opts && 'mimeType' in opts ? opts.mimeType : "application/octet-stream";
      if (mimeType == null) dart.nullFailed(I[196], 3481, 15, "mimeType");
      let parameters = opts && 'parameters' in opts ? opts.parameters : null;
      let percentEncoded = opts && 'percentEncoded' in opts ? opts.percentEncoded : false;
      if (percentEncoded == null) dart.nullFailed(I[196], 3483, 12, "percentEncoded");
      let buffer = new core.StringBuffer.new();
      let indices = G.JSArrayOfint().of([-1]);
      core.UriData._writeUri(mimeType, null, parameters, buffer, indices);
      indices[$add](buffer.length);
      if (dart.test(percentEncoded)) {
        buffer.write(",");
        core.UriData._uriEncodeBytes(core.UriData._uricTable, bytes, buffer);
      } else {
        buffer.write(";base64,");
        indices[$add](dart.notNull(buffer.length) - 1);
        core.UriData._base64.encoder.startChunkedConversion(new (G._StringSinkConversionSinkOfStringSink()).new(buffer)).addSlice(bytes, 0, bytes[$length], true);
      }
      return new core.UriData.__(dart.toString(buffer), indices, null);
    }
    static ['_#fromBytes#tearOff'](bytes, opts) {
      if (bytes == null) dart.nullFailed(I[196], 3480, 39, "bytes");
      let mimeType = opts && 'mimeType' in opts ? opts.mimeType : "application/octet-stream";
      if (mimeType == null) dart.nullFailed(I[196], 3481, 15, "mimeType");
      let parameters = opts && 'parameters' in opts ? opts.parameters : null;
      let percentEncoded = opts && 'percentEncoded' in opts ? opts.percentEncoded : false;
      if (percentEncoded == null) dart.nullFailed(I[196], 3483, 12, "percentEncoded");
      return core.UriData.fromBytes(bytes, {mimeType: mimeType, parameters: parameters, percentEncoded: percentEncoded});
    }
    static fromUri(uri) {
      if (uri == null) dart.nullFailed(I[196], 3507, 31, "uri");
      if (!dart.test(uri.isScheme("data"))) {
        dart.throw(new core.ArgumentError.value(uri, "uri", "Scheme must be 'data'"));
      }
      if (dart.test(uri.hasAuthority)) {
        dart.throw(new core.ArgumentError.value(uri, "uri", "Data uri must not have authority"));
      }
      if (dart.test(uri.hasFragment)) {
        dart.throw(new core.ArgumentError.value(uri, "uri", "Data uri must not have a fragment part"));
      }
      if (!dart.test(uri.hasQuery)) {
        return core.UriData._parse(uri.path, 0, uri);
      }
      return core.UriData._parse(dart.toString(uri), 5, uri);
    }
    static ['_#fromUri#tearOff'](uri) {
      if (uri == null) dart.nullFailed(I[196], 3507, 31, "uri");
      return core.UriData.fromUri(uri);
    }
    static _writeUri(mimeType, charsetName, parameters, buffer, indices) {
      let t$36389, t$36389$;
      if (buffer == null) dart.nullFailed(I[196], 3535, 20, "buffer");
      if (mimeType == null || dart.test(core._caseInsensitiveEquals("text/plain", mimeType))) {
        mimeType = "";
      }
      if (mimeType[$isEmpty] || mimeType === "application/octet-stream") {
        buffer.write(mimeType);
      } else {
        let slashIndex = core.UriData._validateMimeType(mimeType);
        if (dart.notNull(slashIndex) < 0) {
          dart.throw(new core.ArgumentError.value(mimeType, "mimeType", "Invalid MIME type"));
        }
        buffer.write(core._Uri._uriEncode(core.UriData._tokenCharTable, mimeType[$substring](0, slashIndex), convert.utf8, false));
        buffer.write("/");
        buffer.write(core._Uri._uriEncode(core.UriData._tokenCharTable, mimeType[$substring](dart.notNull(slashIndex) + 1), convert.utf8, false));
      }
      if (charsetName != null) {
        t$36389 = indices;
        t$36389 == null ? null : (() => {
          t$36389[$add](buffer.length);
          t$36389[$add](dart.notNull(buffer.length) + 8);
          return t$36389;
        })();
        buffer.write(";charset=");
        buffer.write(core._Uri._uriEncode(core.UriData._tokenCharTable, charsetName, convert.utf8, false));
      }
      t$36389$ = parameters;
      t$36389$ == null ? null : t$36389$[$forEach](dart.fn((key, value) => {
        let t$36390, t$36390$;
        if (key == null) dart.nullFailed(I[196], 3561, 26, "key");
        if (value == null) dart.nullFailed(I[196], 3561, 31, "value");
        if (key[$isEmpty]) {
          dart.throw(new core.ArgumentError.value("", "Parameter names must not be empty"));
        }
        if (value[$isEmpty]) {
          dart.throw(new core.ArgumentError.value("", "Parameter values must not be empty", "parameters[\"" + dart.str(key) + "\"]"));
        }
        t$36390 = indices;
        t$36390 == null ? null : t$36390[$add](buffer.length);
        buffer.write(";");
        buffer.write(core._Uri._uriEncode(core.UriData._tokenCharTable, key, convert.utf8, false));
        t$36390$ = indices;
        t$36390$ == null ? null : t$36390$[$add](buffer.length);
        buffer.write("=");
        buffer.write(core._Uri._uriEncode(core.UriData._tokenCharTable, value, convert.utf8, false));
      }, T$2.StringAndStringTovoid()));
    }
    static _validateMimeType(mimeType) {
      if (mimeType == null) dart.nullFailed(I[196], 3586, 39, "mimeType");
      let slashIndex = -1;
      for (let i = 0; i < mimeType.length; i = i + 1) {
        let char = mimeType[$codeUnitAt](i);
        if (char !== 47) continue;
        if (slashIndex < 0) {
          slashIndex = i;
          continue;
        }
        return -1;
      }
      return slashIndex;
    }
    static parse(uri) {
      if (uri == null) dart.nullFailed(I[196], 3626, 31, "uri");
      if (uri.length >= 5) {
        let dataDelta = core._startsWithData(uri, 0);
        if (dataDelta === 0) {
          return core.UriData._parse(uri, 5, null);
        }
        if (dataDelta === 32) {
          return core.UriData._parse(uri[$substring](5), 0, null);
        }
      }
      dart.throw(new core.FormatException.new("Does not start with 'data:'", uri, 0));
    }
    get uri() {
      let t$36389;
      t$36389 = this[_uriCache$];
      return t$36389 == null ? this[_uriCache$] = this[_computeUri]() : t$36389;
    }
    [_computeUri]() {
      let path = this[_text$];
      let query = null;
      let colonIndex = this[_separatorIndices$][$_get](0);
      let queryIndex = this[_text$][$indexOf]("?", dart.notNull(colonIndex) + 1);
      let end = this[_text$].length;
      if (queryIndex >= 0) {
        query = core._Uri._normalizeOrSubstring(this[_text$], queryIndex + 1, end, core._Uri._queryCharTable);
        end = queryIndex;
      }
      path = core._Uri._normalizeOrSubstring(this[_text$], dart.notNull(colonIndex) + 1, end, core._Uri._pathCharOrSlashTable);
      return new core._DataUri.new(this, path, query);
    }
    get mimeType() {
      let start = dart.notNull(this[_separatorIndices$][$_get](0)) + 1;
      let end = this[_separatorIndices$][$_get](1);
      if (start === end) return "text/plain";
      return core._Uri._uriDecode(this[_text$], start, end, convert.utf8, false);
    }
    isMimeType(mimeType) {
      if (mimeType == null) dart.nullFailed(I[196], 3699, 26, "mimeType");
      let start = dart.notNull(this[_separatorIndices$][$_get](0)) + 1;
      let end = this[_separatorIndices$][$_get](1);
      if (start === end) {
        return mimeType[$isEmpty] || mimeType === "text/plain" || dart.test(core._caseInsensitiveEquals(mimeType, "text/plain"));
      }
      if (mimeType[$isEmpty]) mimeType = "text/plain";
      return mimeType.length === dart.notNull(end) - start && dart.test(core._caseInsensitiveStartsWith(mimeType, this[_text$], start));
    }
    get charset() {
      let charsetIndex = this[_findCharsetIndex]();
      if (dart.notNull(charsetIndex) >= 0) {
        let valueStart = dart.notNull(this[_separatorIndices$][$_get](dart.notNull(charsetIndex) + 1)) + 1;
        let valueEnd = this[_separatorIndices$][$_get](dart.notNull(charsetIndex) + 2);
        return core._Uri._uriDecode(this[_text$], valueStart, valueEnd, convert.utf8, false);
      }
      return "US-ASCII";
    }
    [_findCharsetIndex]() {
      let separatorIndices = this[_separatorIndices$];
      for (let i = 3; i <= dart.notNull(separatorIndices[$length]); i = i + 2) {
        let keyStart = dart.notNull(separatorIndices[$_get](i - 2)) + 1;
        let keyEnd = separatorIndices[$_get](i - 1);
        if (keyEnd === keyStart + "charset".length && dart.test(core._caseInsensitiveStartsWith("charset", this[_text$], keyStart))) {
          return i - 2;
        }
      }
      return -1;
    }
    isCharset(charset) {
      if (charset == null) dart.nullFailed(I[196], 3762, 25, "charset");
      let charsetIndex = this[_findCharsetIndex]();
      if (dart.notNull(charsetIndex) < 0) {
        return charset[$isEmpty] || dart.test(core._caseInsensitiveEquals(charset, "US-ASCII")) || convert.Encoding.getByName(charset) == convert.ascii;
      }
      if (charset[$isEmpty]) charset = "US-ASCII";
      let valueStart = dart.notNull(this[_separatorIndices$][$_get](dart.notNull(charsetIndex) + 1)) + 1;
      let valueEnd = this[_separatorIndices$][$_get](dart.notNull(charsetIndex) + 2);
      let length = dart.notNull(valueEnd) - valueStart;
      if (charset.length === length && dart.test(core._caseInsensitiveStartsWith(charset, this[_text$], valueStart))) {
        return true;
      }
      let checkedEncoding = convert.Encoding.getByName(charset);
      return checkedEncoding != null && checkedEncoding == convert.Encoding.getByName(core._Uri._uriDecode(this[_text$], valueStart, valueEnd, convert.utf8, false));
    }
    isEncoding(encoding) {
      if (encoding == null) dart.nullFailed(I[196], 3792, 28, "encoding");
      let charsetIndex = this[_findCharsetIndex]();
      if (dart.notNull(charsetIndex) < 0) {
        return encoding == convert.ascii;
      }
      let valueStart = dart.notNull(this[_separatorIndices$][$_get](dart.notNull(charsetIndex) + 1)) + 1;
      let valueEnd = this[_separatorIndices$][$_get](dart.notNull(charsetIndex) + 2);
      return encoding == convert.Encoding.getByName(core._Uri._uriDecode(this[_text$], valueStart, valueEnd, convert.utf8, false));
    }
    get isBase64() {
      return this[_separatorIndices$][$length][$isOdd];
    }
    get contentText() {
      return this[_text$][$substring](dart.notNull(this[_separatorIndices$][$last]) + 1);
    }
    contentAsBytes() {
      let t$36389, t$36389$;
      let text = this[_text$];
      let start = dart.notNull(this[_separatorIndices$][$last]) + 1;
      if (dart.test(this.isBase64)) {
        return convert.base64.decoder.convert(text, start);
      }
      let length = text.length - start;
      for (let i = start; i < text.length; i = i + 1) {
        let codeUnit = text[$codeUnitAt](i);
        if (codeUnit === 37) {
          i = i + 2;
          length = length - 2;
        }
      }
      let result = _native_typed_data.NativeUint8List.new(length);
      if (length === text.length) {
        result[$setRange](0, length, text[$codeUnits], start);
        return result;
      }
      let index = 0;
      for (let i = start; i < text.length; i = i + 1) {
        let codeUnit = text[$codeUnitAt](i);
        if (codeUnit !== 37) {
          result[$_set]((t$36389 = index, index = t$36389 + 1, t$36389), codeUnit);
        } else {
          if (i + 2 < text.length) {
            let byte = _internal.parseHexByte(text, i + 1);
            if (dart.notNull(byte) >= 0) {
              result[$_set]((t$36389$ = index, index = t$36389$ + 1, t$36389$), byte);
              i = i + 2;
              continue;
            }
          }
          dart.throw(new core.FormatException.new("Invalid percent escape", text, i));
        }
      }
      if (!(index === result[$length])) dart.assertFailed(null, I[196], 3861, 12, "index == result.length");
      return result;
    }
    contentAsString(opts) {
      let encoding = opts && 'encoding' in opts ? opts.encoding : null;
      if (encoding == null) {
        let charset = this.charset;
        encoding = convert.Encoding.getByName(charset);
        if (encoding == null) {
          dart.throw(new core.UnsupportedError.new("Unknown charset: " + dart.str(charset)));
        }
      }
      let text = this[_text$];
      let start = dart.notNull(this[_separatorIndices$][$last]) + 1;
      if (dart.test(this.isBase64)) {
        let converter = convert.base64.decoder.fuse(T$.String(), encoding.decoder);
        return converter.convert(text[$substring](start));
      }
      return core._Uri._uriDecode(text, start, text.length, encoding, false);
    }
    get parameters() {
      let result = new (G.IdentityMapOfString$String()).new();
      for (let i = 3; i < dart.notNull(this[_separatorIndices$][$length]); i = i + 2) {
        let start = dart.notNull(this[_separatorIndices$][$_get](i - 2)) + 1;
        let equals = this[_separatorIndices$][$_get](i - 1);
        let end = this[_separatorIndices$][$_get](i);
        let key = core._Uri._uriDecode(this[_text$], start, equals, convert.utf8, false);
        let value = core._Uri._uriDecode(this[_text$], dart.notNull(equals) + 1, end, convert.utf8, false);
        result[$_set](key, value);
      }
      return result;
    }
    static _parse(text, start, sourceUri) {
      if (text == null) dart.nullFailed(I[196], 3919, 32, "text");
      if (start == null) dart.nullFailed(I[196], 3919, 42, "start");
      if (!(start === 0 || start === 5)) dart.assertFailed(null, I[196], 3920, 12, "start == 0 || start == 5");
      if (!(start === 5 === text[$startsWith]("data:"))) dart.assertFailed(null, I[196], 3921, 12, "(start == 5) == text.startsWith(\"data:\")");
      let indices = G.JSArrayOfint().of([dart.notNull(start) - 1]);
      let slashIndex = -1;
      let char = null;
      let i = start;
      for (; dart.notNull(i) < text.length; i = dart.notNull(i) + 1) {
        char = text[$codeUnitAt](i);
        if (dart.equals(char, 44) || dart.equals(char, 59)) break;
        if (dart.equals(char, 47)) {
          if (dart.notNull(slashIndex) < 0) {
            slashIndex = i;
            continue;
          }
          dart.throw(new core.FormatException.new("Invalid MIME type", text, i));
        }
      }
      if (dart.notNull(slashIndex) < 0 && dart.notNull(i) > dart.notNull(start)) {
        dart.throw(new core.FormatException.new("Invalid MIME type", text, i));
      }
      while (!dart.equals(char, 44)) {
        indices[$add](i);
        i = dart.notNull(i) + 1;
        let equalsIndex = -1;
        for (; dart.notNull(i) < text.length; i = dart.notNull(i) + 1) {
          char = text[$codeUnitAt](i);
          if (dart.equals(char, 61)) {
            if (dart.notNull(equalsIndex) < 0) equalsIndex = i;
          } else if (dart.equals(char, 59) || dart.equals(char, 44)) {
            break;
          }
        }
        if (dart.notNull(equalsIndex) >= 0) {
          indices[$add](equalsIndex);
        } else {
          let lastSeparator = indices[$last];
          if (!dart.equals(char, 44) || i !== dart.notNull(lastSeparator) + 7 || !text[$startsWith]("base64", dart.notNull(lastSeparator) + 1)) {
            dart.throw(new core.FormatException.new("Expecting '='", text, i));
          }
          break;
        }
      }
      indices[$add](i);
      let isBase64 = indices[$length][$isOdd];
      if (isBase64) {
        text = convert.base64.normalize(text, dart.notNull(i) + 1, text.length);
      } else {
        let data = core._Uri._normalize(text, dart.notNull(i) + 1, text.length, core.UriData._uricTable, {escapeDelimiters: true});
        if (data != null) {
          text = text[$replaceRange](dart.notNull(i) + 1, text.length, data);
        }
      }
      return new core.UriData.__(text, indices, sourceUri);
    }
    static _uriEncodeBytes(canonicalTable, bytes, buffer) {
      if (canonicalTable == null) dart.nullFailed(I[196], 3995, 17, "canonicalTable");
      if (bytes == null) dart.nullFailed(I[196], 3995, 43, "bytes");
      if (buffer == null) dart.nullFailed(I[196], 3995, 61, "buffer");
      let byteOr = 0;
      for (let i = 0; i < dart.notNull(bytes[$length]); i = i + 1) {
        let byte = bytes[$_get](i);
        byteOr = (byteOr | dart.notNull(byte)) >>> 0;
        if (dart.notNull(byte) < 128 && (dart.notNull(canonicalTable[$_get](byte[$rightShift](4))) & 1 << (dart.notNull(byte) & 15)) !== 0) {
          buffer.writeCharCode(byte);
        } else {
          buffer.writeCharCode(37);
          buffer.writeCharCode("0123456789ABCDEF"[$codeUnitAt](byte[$rightShift](4)));
          buffer.writeCharCode("0123456789ABCDEF"[$codeUnitAt](dart.notNull(byte) & 15));
        }
      }
      if ((byteOr & ~255 >>> 0) !== 0) {
        for (let i = 0; i < dart.notNull(bytes[$length]); i = i + 1) {
          let byte = bytes[$_get](i);
          if (dart.notNull(byte) < 0 || dart.notNull(byte) > 255) {
            dart.throw(new core.ArgumentError.value(byte, "non-byte value"));
          }
        }
      }
    }
    toString() {
      return this[_separatorIndices$][$_get](0) === -1 ? "data:" + dart.str(this[_text$]) : this[_text$];
    }
  };
  (core.UriData.__ = function(_text, _separatorIndices, _uriCache) {
    if (_text == null) dart.nullFailed(I[196], 3436, 18, "_text");
    if (_separatorIndices == null) dart.nullFailed(I[196], 3436, 30, "_separatorIndices");
    this[_text$] = _text;
    this[_separatorIndices$] = _separatorIndices;
    this[_uriCache$] = _uriCache;
    ;
  }).prototype = core.UriData.prototype;
  dart.addRtiResources(core.UriData, ["core|UriData"]);
  dart.setMethodSignature(core.UriData, () => dart.global.Object.setPrototypeOf({
    [_computeUri]: T$3.VoidToUri(),
    isMimeType: T$.StringTobool(),
    [_findCharsetIndex]: T$.VoidToint(),
    isCharset: T$.StringTobool(),
    isEncoding: T$8.EncodingTobool(),
    contentAsBytes: T$.VoidToUint8List(),
    contentAsString: T$8.__ToString$2()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core.UriData))));
  dart.setStaticMethodSignature(core.UriData, () => ['fromString', 'fromBytes', 'fromUri', '_writeUri', '_validateMimeType', 'parse', '_parse', '_uriEncodeBytes']);
  dart.setGetterSignature(core.UriData, () => dart.global.Object.setPrototypeOf({
    uri: T$2.Uri(),
    mimeType: T$.String(),
    charset: T$.String(),
    isBase64: T$.bool(),
    contentText: T$.String(),
    parameters: T$2.MapOfString$String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core.UriData))));
  dart.setLibraryUri(core.UriData, I[11]);
  dart.setFieldSignature(core.UriData, () => dart.global.Object.setPrototypeOf({
    [_text$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_separatorIndices$]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_uriCache$]: {type: T$2.UriN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core.UriData))));
  dart.setStaticFieldSignature(core.UriData, () => ['_noScheme', '_base64', '_tokenCharTable', '_uricTable']);
  dart.defineExtensionMethods(core.UriData, ['toString']);
  dart.defineLazy(core.UriData, {
    /*core.UriData._noScheme*/get _noScheme() {
      return -1;
    },
    /*core.UriData._base64*/get _base64() {
      return C[150] || CT.C150;
    },
    /*core.UriData._tokenCharTable*/get _tokenCharTable() {
      return C[494] || CT.C494;
    },
    /*core.UriData._uricTable*/get _uricTable() {
      return C[493] || CT.C493;
    }
  }, false);
  var _hashCodeCache = dart.privateName(core, "_hashCodeCache");
  var _uri$ = dart.privateName(core, "_uri");
  var _schemeEnd$ = dart.privateName(core, "_schemeEnd");
  var _hostStart$ = dart.privateName(core, "_hostStart");
  var _portStart$ = dart.privateName(core, "_portStart");
  var _pathStart$ = dart.privateName(core, "_pathStart");
  var _queryStart$ = dart.privateName(core, "_queryStart");
  var _fragmentStart$ = dart.privateName(core, "_fragmentStart");
  var _schemeCache$ = dart.privateName(core, "_schemeCache");
  var _isFile = dart.privateName(core, "_isFile");
  var _isHttp = dart.privateName(core, "_isHttp");
  var _isHttps = dart.privateName(core, "_isHttps");
  var _isPackage = dart.privateName(core, "_isPackage");
  var _isScheme = dart.privateName(core, "_isScheme");
  var _computeScheme = dart.privateName(core, "_computeScheme");
  var _isPort = dart.privateName(core, "_isPort");
  var _simpleMerge = dart.privateName(core, "_simpleMerge");
  var _toNonSimple = dart.privateName(core, "_toNonSimple");
  core._SimpleUri = class _SimpleUri extends core.Object {
    static ['_#new#tearOff'](_uri, _schemeEnd, _hostStart, _portStart, _pathStart, _queryStart, _fragmentStart, _schemeCache) {
      if (_uri == null) dart.nullFailed(I[196], 4479, 12, "_uri");
      if (_schemeEnd == null) dart.nullFailed(I[196], 4480, 12, "_schemeEnd");
      if (_hostStart == null) dart.nullFailed(I[196], 4481, 12, "_hostStart");
      if (_portStart == null) dart.nullFailed(I[196], 4482, 12, "_portStart");
      if (_pathStart == null) dart.nullFailed(I[196], 4483, 12, "_pathStart");
      if (_queryStart == null) dart.nullFailed(I[196], 4484, 12, "_queryStart");
      if (_fragmentStart == null) dart.nullFailed(I[196], 4485, 12, "_fragmentStart");
      return new core._SimpleUri.new(_uri, _schemeEnd, _hostStart, _portStart, _pathStart, _queryStart, _fragmentStart, _schemeCache);
    }
    get hasScheme() {
      return dart.notNull(this[_schemeEnd$]) > 0;
    }
    get hasAuthority() {
      return dart.notNull(this[_hostStart$]) > 0;
    }
    get hasUserInfo() {
      return dart.notNull(this[_hostStart$]) > dart.notNull(this[_schemeEnd$]) + 4;
    }
    get hasPort() {
      return dart.notNull(this[_hostStart$]) > 0 && dart.notNull(this[_portStart$]) + 1 < dart.notNull(this[_pathStart$]);
    }
    get hasQuery() {
      return dart.notNull(this[_queryStart$]) < dart.notNull(this[_fragmentStart$]);
    }
    get hasFragment() {
      return dart.notNull(this[_fragmentStart$]) < this[_uri$].length;
    }
    get [_isFile]() {
      return this[_schemeEnd$] === 4 && this[_uri$][$startsWith]("file");
    }
    get [_isHttp]() {
      return this[_schemeEnd$] === 4 && this[_uri$][$startsWith]("http");
    }
    get [_isHttps]() {
      return this[_schemeEnd$] === 5 && this[_uri$][$startsWith]("https");
    }
    get [_isPackage]() {
      return this[_schemeEnd$] === 7 && this[_uri$][$startsWith]("package");
    }
    [_isScheme](scheme) {
      if (scheme == null) dart.nullFailed(I[196], 4501, 25, "scheme");
      return this[_schemeEnd$] === scheme.length && this[_uri$][$startsWith](scheme);
    }
    get hasAbsolutePath() {
      return this[_uri$][$startsWith]("/", this[_pathStart$]);
    }
    get hasEmptyPath() {
      return this[_pathStart$] == this[_queryStart$];
    }
    get isAbsolute() {
      return dart.test(this.hasScheme) && !dart.test(this.hasFragment);
    }
    isScheme(scheme) {
      if (scheme == null) dart.nullFailed(I[196], 4509, 24, "scheme");
      if (scheme == null || scheme[$isEmpty]) return dart.notNull(this[_schemeEnd$]) < 0;
      if (scheme.length !== this[_schemeEnd$]) return false;
      return core._caseInsensitiveStartsWith(scheme, this[_uri$], 0);
    }
    get scheme() {
      let t$36389;
      t$36389 = this[_schemeCache$];
      return t$36389 == null ? this[_schemeCache$] = this[_computeScheme]() : t$36389;
    }
    [_computeScheme]() {
      if (dart.notNull(this[_schemeEnd$]) <= 0) return "";
      if (dart.test(this[_isHttp])) return "http";
      if (dart.test(this[_isHttps])) return "https";
      if (dart.test(this[_isFile])) return "file";
      if (dart.test(this[_isPackage])) return "package";
      return this[_uri$][$substring](0, this[_schemeEnd$]);
    }
    get authority() {
      return dart.notNull(this[_hostStart$]) > 0 ? this[_uri$][$substring](dart.notNull(this[_schemeEnd$]) + 3, this[_pathStart$]) : "";
    }
    get userInfo() {
      return dart.notNull(this[_hostStart$]) > dart.notNull(this[_schemeEnd$]) + 3 ? this[_uri$][$substring](dart.notNull(this[_schemeEnd$]) + 3, dart.notNull(this[_hostStart$]) - 1) : "";
    }
    get host() {
      return dart.notNull(this[_hostStart$]) > 0 ? this[_uri$][$substring](this[_hostStart$], this[_portStart$]) : "";
    }
    get port() {
      if (dart.test(this.hasPort)) return core.int.parse(this[_uri$][$substring](dart.notNull(this[_portStart$]) + 1, this[_pathStart$]));
      if (dart.test(this[_isHttp])) return 80;
      if (dart.test(this[_isHttps])) return 443;
      return 0;
    }
    get path() {
      return this[_uri$][$substring](this[_pathStart$], this[_queryStart$]);
    }
    get query() {
      return dart.notNull(this[_queryStart$]) < dart.notNull(this[_fragmentStart$]) ? this[_uri$][$substring](dart.notNull(this[_queryStart$]) + 1, this[_fragmentStart$]) : "";
    }
    get fragment() {
      return dart.notNull(this[_fragmentStart$]) < this[_uri$].length ? this[_uri$][$substring](dart.notNull(this[_fragmentStart$]) + 1) : "";
    }
    get origin() {
      let isHttp = this[_isHttp];
      if (dart.notNull(this[_schemeEnd$]) < 0) {
        dart.throw(new core.StateError.new("Cannot use origin without a scheme: " + dart.strSafe(this)));
      }
      if (!dart.test(isHttp) && !dart.test(this[_isHttps])) {
        dart.throw(new core.StateError.new("Origin is only applicable to schemes http and https: " + dart.strSafe(this)));
      }
      if (this[_hostStart$] == this[_portStart$]) {
        dart.throw(new core.StateError.new("A " + dart.str(this.scheme) + ": URI should have a non-empty host name: " + dart.strSafe(this)));
      }
      if (this[_hostStart$] === dart.notNull(this[_schemeEnd$]) + 3) {
        return this[_uri$][$substring](0, this[_pathStart$]);
      }
      return this[_uri$][$substring](0, dart.notNull(this[_schemeEnd$]) + 3) + this[_uri$][$substring](this[_hostStart$], this[_pathStart$]);
    }
    get pathSegments() {
      let start = this[_pathStart$];
      let end = this[_queryStart$];
      if (this[_uri$][$startsWith]("/", start)) start = dart.notNull(start) + 1;
      if (start == end) return C[456] || CT.C456;
      let parts = G.JSArrayOfString().of([]);
      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
        let char = this[_uri$][$codeUnitAt](i);
        if (char === 47) {
          parts[$add](this[_uri$][$substring](start, i));
          start = dart.notNull(i) + 1;
        }
      }
      parts[$add](this[_uri$][$substring](start, end));
      return G.ListOfString().unmodifiable(parts);
    }
    get queryParameters() {
      if (!dart.test(this.hasQuery)) return C[495] || CT.C495;
      return new (G.UnmodifiableMapViewOfString$String()).new(core.Uri.splitQueryString(this.query));
    }
    get queryParametersAll() {
      if (!dart.test(this.hasQuery)) return C[481] || CT.C481;
      let queryParameterLists = core._Uri._splitQueryStringAll(this.query);
      queryParameterLists[$updateAll](C[482] || CT.C482);
      return G$.MapOfString$ListOfString().unmodifiable(queryParameterLists);
    }
    [_isPort](port) {
      if (port == null) dart.nullFailed(I[196], 4601, 23, "port");
      let portDigitStart = dart.notNull(this[_portStart$]) + 1;
      return portDigitStart + port.length === this[_pathStart$] && this[_uri$][$startsWith](port, portDigitStart);
    }
    normalizePath() {
      return this;
    }
    removeFragment() {
      if (!dart.test(this.hasFragment)) return this;
      return new core._SimpleUri.new(this[_uri$][$substring](0, this[_fragmentStart$]), this[_schemeEnd$], this[_hostStart$], this[_portStart$], this[_pathStart$], this[_queryStart$], this[_fragmentStart$], this[_schemeCache$]);
    }
    replace(opts) {
      let scheme = opts && 'scheme' in opts ? opts.scheme : null;
      let userInfo = opts && 'userInfo' in opts ? opts.userInfo : null;
      let host = opts && 'host' in opts ? opts.host : null;
      let port = opts && 'port' in opts ? opts.port : null;
      let path = opts && 'path' in opts ? opts.path : null;
      let pathSegments = opts && 'pathSegments' in opts ? opts.pathSegments : null;
      let query = opts && 'query' in opts ? opts.query : null;
      let queryParameters = opts && 'queryParameters' in opts ? opts.queryParameters : null;
      let fragment = opts && 'fragment' in opts ? opts.fragment : null;
      let schemeChanged = false;
      if (scheme != null) {
        scheme = core._Uri._makeScheme(scheme, 0, scheme.length);
        schemeChanged = !dart.test(this[_isScheme](scheme));
      } else {
        scheme = this.scheme;
      }
      let isFile = scheme === "file";
      if (userInfo != null) {
        userInfo = core._Uri._makeUserInfo(userInfo, 0, userInfo.length);
      } else if (dart.notNull(this[_hostStart$]) > 0) {
        userInfo = this[_uri$][$substring](dart.notNull(this[_schemeEnd$]) + 3, this[_hostStart$]);
      } else {
        userInfo = "";
      }
      if (port != null) {
        port = core._Uri._makePort(port, scheme);
      } else {
        port = dart.test(this.hasPort) ? this.port : null;
        if (schemeChanged) {
          port = core._Uri._makePort(port, scheme);
        }
      }
      if (host != null) {
        host = core._Uri._makeHost(host, 0, host.length, false);
      } else if (dart.notNull(this[_hostStart$]) > 0) {
        host = this[_uri$][$substring](this[_hostStart$], this[_portStart$]);
      } else if (userInfo[$isNotEmpty] || port != null || isFile) {
        host = "";
      }
      let hasAuthority = host != null;
      if (path != null || pathSegments != null) {
        path = core._Uri._makePath(path, 0, core._stringOrNullLength(path), pathSegments, scheme, hasAuthority);
      } else {
        path = this[_uri$][$substring](this[_pathStart$], this[_queryStart$]);
        if ((isFile || hasAuthority && !path[$isEmpty]) && !path[$startsWith]("/")) {
          path = "/" + dart.notNull(path);
        }
      }
      if (query != null || queryParameters != null) {
        query = core._Uri._makeQuery(query, 0, core._stringOrNullLength(query), queryParameters);
      } else if (dart.notNull(this[_queryStart$]) < dart.notNull(this[_fragmentStart$])) {
        query = this[_uri$][$substring](dart.notNull(this[_queryStart$]) + 1, this[_fragmentStart$]);
      }
      if (fragment != null) {
        fragment = core._Uri._makeFragment(fragment, 0, fragment.length);
      } else if (dart.notNull(this[_fragmentStart$]) < this[_uri$].length) {
        fragment = this[_uri$][$substring](dart.notNull(this[_fragmentStart$]) + 1);
      }
      return new core._Uri._internal(scheme, userInfo, host, port, path, query, fragment);
    }
    resolve(reference) {
      if (reference == null) dart.nullFailed(I[196], 4685, 22, "reference");
      return this.resolveUri(core.Uri.parse(reference));
    }
    resolveUri(reference) {
      if (reference == null) dart.nullFailed(I[196], 4689, 22, "reference");
      if (T$8._SimpleUri()[_is](reference)) {
        return this[_simpleMerge](this, reference);
      }
      return this[_toNonSimple]().resolveUri(reference);
    }
    static _packageNameEnd(uri) {
      if (uri == null) dart.nullFailed(I[196], 4706, 41, "uri");
      if (dart.test(uri[_isPackage]) && !dart.test(uri.hasAuthority)) {
        return core._skipPackageNameChars(uri[_uri$], uri[_pathStart$], uri[_queryStart$]);
      }
      return -1;
    }
    [_simpleMerge](base, ref) {
      if (base == null) dart.nullFailed(I[196], 4720, 31, "base");
      if (ref == null) dart.nullFailed(I[196], 4720, 48, "ref");
      if (dart.test(ref.hasScheme)) return ref;
      if (dart.test(ref.hasAuthority)) {
        if (!dart.test(base.hasScheme)) return ref;
        let isSimple = true;
        if (dart.test(base[_isFile])) {
          isSimple = !dart.test(ref.hasEmptyPath);
        } else if (dart.test(base[_isHttp])) {
          isSimple = !dart.test(ref[_isPort]("80"));
        } else if (dart.test(base[_isHttps])) {
          isSimple = !dart.test(ref[_isPort]("443"));
        }
        if (isSimple) {
          let delta = dart.notNull(base[_schemeEnd$]) + 1;
          let newUri = base[_uri$][$substring](0, dart.notNull(base[_schemeEnd$]) + 1) + ref[_uri$][$substring](dart.notNull(ref[_schemeEnd$]) + 1);
          return new core._SimpleUri.new(newUri, base[_schemeEnd$], dart.notNull(ref[_hostStart$]) + delta, dart.notNull(ref[_portStart$]) + delta, dart.notNull(ref[_pathStart$]) + delta, dart.notNull(ref[_queryStart$]) + delta, dart.notNull(ref[_fragmentStart$]) + delta, base[_schemeCache$]);
        } else {
          return this[_toNonSimple]().resolveUri(ref);
        }
      }
      if (dart.test(ref.hasEmptyPath)) {
        if (dart.test(ref.hasQuery)) {
          let delta = dart.notNull(base[_queryStart$]) - dart.notNull(ref[_queryStart$]);
          let newUri = base[_uri$][$substring](0, base[_queryStart$]) + ref[_uri$][$substring](ref[_queryStart$]);
          return new core._SimpleUri.new(newUri, base[_schemeEnd$], base[_hostStart$], base[_portStart$], base[_pathStart$], dart.notNull(ref[_queryStart$]) + delta, dart.notNull(ref[_fragmentStart$]) + delta, base[_schemeCache$]);
        }
        if (dart.test(ref.hasFragment)) {
          let delta = dart.notNull(base[_fragmentStart$]) - dart.notNull(ref[_fragmentStart$]);
          let newUri = base[_uri$][$substring](0, base[_fragmentStart$]) + ref[_uri$][$substring](ref[_fragmentStart$]);
          return new core._SimpleUri.new(newUri, base[_schemeEnd$], base[_hostStart$], base[_portStart$], base[_pathStart$], base[_queryStart$], dart.notNull(ref[_fragmentStart$]) + delta, base[_schemeCache$]);
        }
        return base.removeFragment();
      }
      if (dart.test(ref.hasAbsolutePath)) {
        let basePathStart = base[_pathStart$];
        let packageNameEnd = core._SimpleUri._packageNameEnd(this);
        if (dart.notNull(packageNameEnd) > 0) basePathStart = packageNameEnd;
        let delta = dart.notNull(basePathStart) - dart.notNull(ref[_pathStart$]);
        let newUri = base[_uri$][$substring](0, basePathStart) + ref[_uri$][$substring](ref[_pathStart$]);
        return new core._SimpleUri.new(newUri, base[_schemeEnd$], base[_hostStart$], base[_portStart$], base[_pathStart$], dart.notNull(ref[_queryStart$]) + delta, dart.notNull(ref[_fragmentStart$]) + delta, base[_schemeCache$]);
      }
      if (dart.test(base.hasEmptyPath) && dart.test(base.hasAuthority)) {
        let refStart = ref[_pathStart$];
        while (ref[_uri$][$startsWith]("../", refStart)) {
          refStart = dart.notNull(refStart) + 3;
        }
        let delta = dart.notNull(base[_pathStart$]) - dart.notNull(refStart) + 1;
        let newUri = base[_uri$][$substring](0, base[_pathStart$]) + "/" + ref[_uri$][$substring](refStart);
        return new core._SimpleUri.new(newUri, base[_schemeEnd$], base[_hostStart$], base[_portStart$], base[_pathStart$], dart.notNull(ref[_queryStart$]) + delta, dart.notNull(ref[_fragmentStart$]) + delta, base[_schemeCache$]);
      }
      let baseUri = base[_uri$];
      let refUri = ref[_uri$];
      let baseStart = base[_pathStart$];
      let baseEnd = base[_queryStart$];
      let packageNameEnd = core._SimpleUri._packageNameEnd(this);
      if (dart.notNull(packageNameEnd) >= 0) {
        baseStart = packageNameEnd;
      } else {
        while (baseUri[$startsWith]("../", baseStart))
          baseStart = dart.notNull(baseStart) + 3;
      }
      let refStart = ref[_pathStart$];
      let refEnd = ref[_queryStart$];
      let backCount = 0;
      while (dart.notNull(refStart) + 3 <= dart.notNull(refEnd) && refUri[$startsWith]("../", refStart)) {
        refStart = dart.notNull(refStart) + 3;
        backCount = backCount + 1;
      }
      let insert = "";
      while (dart.notNull(baseEnd) > dart.notNull(baseStart)) {
        baseEnd = dart.notNull(baseEnd) - 1;
        let char = baseUri[$codeUnitAt](baseEnd);
        if (char === 47) {
          insert = "/";
          if (backCount === 0) break;
          backCount = backCount - 1;
        }
      }
      if (baseEnd == baseStart && !dart.test(base.hasScheme) && !dart.test(base.hasAbsolutePath)) {
        insert = "";
        refStart = dart.notNull(refStart) - backCount * 3;
      }
      let delta = dart.notNull(baseEnd) - dart.notNull(refStart) + insert.length;
      let newUri = base[_uri$][$substring](0, baseEnd) + insert + ref[_uri$][$substring](refStart);
      return new core._SimpleUri.new(newUri, base[_schemeEnd$], base[_hostStart$], base[_portStart$], base[_pathStart$], dart.notNull(ref[_queryStart$]) + delta, dart.notNull(ref[_fragmentStart$]) + delta, base[_schemeCache$]);
    }
    toFilePath(opts) {
      let t$36389;
      let windows = opts && 'windows' in opts ? opts.windows : null;
      if (dart.notNull(this[_schemeEnd$]) >= 0 && !dart.test(this[_isFile])) {
        dart.throw(new core.UnsupportedError.new("Cannot extract a file path from a " + dart.str(this.scheme) + " URI"));
      }
      if (dart.notNull(this[_queryStart$]) < this[_uri$].length) {
        if (dart.notNull(this[_queryStart$]) < dart.notNull(this[_fragmentStart$])) {
          dart.throw(new core.UnsupportedError.new("Cannot extract a file path from a URI with a query component"));
        }
        dart.throw(new core.UnsupportedError.new("Cannot extract a file path from a URI with a fragment component"));
      }
      return dart.test((t$36389 = windows, t$36389 == null ? core._Uri._isWindows : t$36389)) ? core._Uri._toWindowsFilePath(this) : this[_toFilePath]();
    }
    [_toFilePath]() {
      if (dart.notNull(this[_hostStart$]) < dart.notNull(this[_portStart$])) {
        dart.throw(new core.UnsupportedError.new("Cannot extract a non-Windows file path from a file URI with an authority"));
      }
      return this.path;
    }
    get data() {
      if (!(this.scheme !== "data")) dart.assertFailed(null, I[196], 4931, 12, "scheme != \"data\"");
      return null;
    }
    get hashCode() {
      let t$36389;
      t$36389 = this[_hashCodeCache];
      return t$36389 == null ? this[_hashCodeCache] = dart.hashCode(this[_uri$]) : t$36389;
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) return true;
      return T$2.Uri()[_is](other) && this[_uri$] == dart.toString(other);
    }
    [_toNonSimple]() {
      return new core._Uri._internal(this.scheme, this.userInfo, dart.test(this.hasAuthority) ? this.host : null, dart.test(this.hasPort) ? this.port : null, this.path, dart.test(this.hasQuery) ? this.query : null, dart.test(this.hasFragment) ? this.fragment : null);
    }
    toString() {
      return this[_uri$];
    }
  };
  (core._SimpleUri.new = function(_uri, _schemeEnd, _hostStart, _portStart, _pathStart, _queryStart, _fragmentStart, _schemeCache) {
    if (_uri == null) dart.nullFailed(I[196], 4479, 12, "_uri");
    if (_schemeEnd == null) dart.nullFailed(I[196], 4480, 12, "_schemeEnd");
    if (_hostStart == null) dart.nullFailed(I[196], 4481, 12, "_hostStart");
    if (_portStart == null) dart.nullFailed(I[196], 4482, 12, "_portStart");
    if (_pathStart == null) dart.nullFailed(I[196], 4483, 12, "_pathStart");
    if (_queryStart == null) dart.nullFailed(I[196], 4484, 12, "_queryStart");
    if (_fragmentStart == null) dart.nullFailed(I[196], 4485, 12, "_fragmentStart");
    this[_hashCodeCache] = null;
    this[_uri$] = _uri;
    this[_schemeEnd$] = _schemeEnd;
    this[_hostStart$] = _hostStart;
    this[_portStart$] = _portStart;
    this[_pathStart$] = _pathStart;
    this[_queryStart$] = _queryStart;
    this[_fragmentStart$] = _fragmentStart;
    this[_schemeCache$] = _schemeCache;
    ;
  }).prototype = core._SimpleUri.prototype;
  dart.addRtiResources(core._SimpleUri, ["core|_SimpleUri", "core|_PlatformUri", "core|Uri"]);
  dart.setMethodSignature(core._SimpleUri, () => dart.global.Object.setPrototypeOf({
    [_isScheme]: T$.StringTobool(),
    isScheme: T$.StringTobool(),
    [_computeScheme]: T$.VoidToString(),
    [_isPort]: T$.StringTobool(),
    normalizePath: T$3.VoidToUri(),
    removeFragment: T$3.VoidToUri(),
    replace: T$8.__ToUri(),
    resolve: T$8.StringToUri(),
    resolveUri: T$8.UriToUri(),
    [_simpleMerge]: T$8._SimpleUriAnd_SimpleUriToUri(),
    toFilePath: T$8.__ToString$1(),
    [_toFilePath]: T$.VoidToString(),
    [_toNonSimple]: T$3.VoidToUri()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(core._SimpleUri))));
  dart.setStaticMethodSignature(core._SimpleUri, () => ['_packageNameEnd']);
  dart.setGetterSignature(core._SimpleUri, () => dart.global.Object.setPrototypeOf({
    hasScheme: T$.bool(),
    hasAuthority: T$.bool(),
    hasUserInfo: T$.bool(),
    hasPort: T$.bool(),
    hasQuery: T$.bool(),
    hasFragment: T$.bool(),
    [_isFile]: T$.bool(),
    [_isHttp]: T$.bool(),
    [_isHttps]: T$.bool(),
    [_isPackage]: T$.bool(),
    hasAbsolutePath: T$.bool(),
    hasEmptyPath: T$.bool(),
    isAbsolute: T$.bool(),
    scheme: T$.String(),
    authority: T$.String(),
    userInfo: T$.String(),
    host: T$.String(),
    port: T$.int(),
    path: T$.String(),
    query: T$.String(),
    fragment: T$.String(),
    origin: T$.String(),
    pathSegments: T$0.ListOfString(),
    queryParameters: T$2.MapOfString$String(),
    queryParametersAll: T$8.MapOfString$ListOfString(),
    data: T$8.UriDataN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(core._SimpleUri))));
  dart.setLibraryUri(core._SimpleUri, I[11]);
  dart.setFieldSignature(core._SimpleUri, () => dart.global.Object.setPrototypeOf({
    [_uri$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_schemeEnd$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_hostStart$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_portStart$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_pathStart$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_queryStart$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fragmentStart$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_schemeCache$]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_hashCodeCache]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(core._SimpleUri))));
  dart.defineExtensionMethods(core._SimpleUri, ['_equals', 'toString']);
  dart.defineExtensionAccessors(core._SimpleUri, ['hashCode']);
  var _data$0 = dart.privateName(core, "_data");
  core._DataUri = class _DataUri extends core._Uri {
    static ['_#new#tearOff'](_data, path, query) {
      if (_data == null) dart.nullFailed(I[196], 4960, 17, "_data");
      if (path == null) dart.nullFailed(I[196], 4960, 31, "path");
      return new core._DataUri.new(_data, path, query);
    }
    get data() {
      return this[_data$0];
    }
  };
  (core._DataUri.new = function(_data, path, query) {
    if (_data == null) dart.nullFailed(I[196], 4960, 17, "_data");
    if (path == null) dart.nullFailed(I[196], 4960, 31, "path");
    this[_data$0] = _data;
    dart.global.Object.getPrototypeOf(core._DataUri)._internal.call(this, "data", "", null, null, path, query, null);
    ;
  }).prototype = core._DataUri.prototype;
  dart.addRtiResources(core._DataUri, ["core|_DataUri"]);
  dart.setLibraryUri(core._DataUri, I[11]);
  dart.setFieldSignature(core._DataUri, () => dart.global.Object.setPrototypeOf({[_data$0]: {type: T$8.UriData(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(core._DataUri))));
  var name$16 = dart.privateName(core, "Expando.name");
  var _jsWeakMap = dart.privateName(core, "_jsWeakMap");
  core.Expando$ = dart.generic(T => {
    var __t$ExpandoOfT = () => (__t$ExpandoOfT = dart.constFn(T[_eval]("core|Expando<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    var __t$ObjectToTN = () => (__t$ObjectToTN = dart.constFn(T[_eval]("0?(core|Object)")))();
    class Expando extends core.Object {
      get name() {
        return this[name$16];
      }
      set name(value) {
        super.name = value;
      }
      static ['_#new#tearOff'](T, name = null) {
        return new (core.Expando$(T)).new(name);
      }
      toString() {
        return "Expando:" + dart.str(this.name);
      }
      _get(object) {
        if (object == null) dart.nullFailed(I[9], 125, 25, "object");
        if (object == null || typeof object == 'boolean' || typeof object == 'number' || typeof object == 'string' || T$.Record()[_is](object)) {
          dart.throw(new core.ArgumentError.value(object, "Expandos are not allowed on strings, numbers, booleans, records, or null"));
        }
        return this[_jsWeakMap].get(object);
      }
      _set(object, value$) {
        let value = value$;
        if (object == null) dart.nullFailed(I[9], 142, 28, "object");
        __t$TN()[_as](value);
        if (T$.Record()[_is](object)) {
          dart.throw(new core.ArgumentError.value(object, "Expandos are not allowed on strings, numbers, booleans, records, or null"));
        }
        this[_jsWeakMap].set(object, value);
        return value$;
      }
    }
    (Expando.new = function(name = null) {
      this[_jsWeakMap] = new WeakMap();
      this[name$16] = name;
      this.$ti = this.$ti || __t$ExpandoOfT();
      ;
    }).prototype = Expando.prototype;
    dart.addRtiResources(Expando, ["core|Expando"]);
    dart.setMethodSignature(Expando, () => dart.global.Object.setPrototypeOf({
      _get: __t$ObjectToTN(),
      _set: T$3.ObjectAndObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(Expando))));
    dart.setLibraryUri(Expando, I[11]);
    dart.setFieldSignature(Expando, () => dart.global.Object.setPrototypeOf({
      [_jsWeakMap]: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]},
      name: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(Expando))));
    dart.defineExtensionMethods(Expando, ['toString']);
    return Expando;
  });
  core.Expando = core.Expando$();
  core.WeakReference$ = dart.generic(T => {
    class WeakReference extends core.Object {
      static new(object) {
        if (object == null) dart.nullFailed(I[9], 159, 27, "object");
        return new (core._WeakReferenceWrapper$(T)).new(object);
      }
      static ['_#new#tearOff'](T, object) {
        if (object == null) dart.nullFailed(I[9], 159, 27, "object");
        return core.WeakReference$(T).new(object);
      }
    }
    (WeakReference[dart.mixinNew] = function() {
    }).prototype = WeakReference.prototype;
    dart.addRtiResources(WeakReference, ["core|WeakReference"]);
    dart.setStaticMethodSignature(WeakReference, () => ['new']);
    dart.setLibraryUri(WeakReference, I[11]);
    return WeakReference;
  });
  core.WeakReference = core.WeakReference$();
  core.Finalizer$ = dart.generic(T => {
    class Finalizer extends core.Object {
      static new(object) {
        if (object == null) dart.nullFailed(I[9], 182, 38, "object");
        return new (core._FinalizationRegistryWrapper$(T)).new(object);
      }
      static ['_#new#tearOff'](T, object) {
        if (object == null) dart.nullFailed(I[9], 182, 38, "object");
        return core.Finalizer$(T).new(object);
      }
    }
    (Finalizer[dart.mixinNew] = function() {
    }).prototype = Finalizer.prototype;
    dart.addRtiResources(Finalizer, ["core|Finalizer"]);
    dart.setStaticMethodSignature(Finalizer, () => ['new']);
    dart.setLibraryUri(Finalizer, I[11]);
    return Finalizer;
  });
  core.Finalizer = core.Finalizer$();
  core._max = function _max(a, b) {
    if (a == null) dart.nullFailed(I[181], 28, 14, "a");
    if (b == null) dart.nullFailed(I[181], 28, 21, "b");
    return dart.notNull(a) > dart.notNull(b) ? a : b;
  };
  core._min = function _min(a, b) {
    if (a == null) dart.nullFailed(I[181], 29, 14, "a");
    if (b == null) dart.nullFailed(I[181], 29, 21, "b");
    return dart.notNull(a) < dart.notNull(b) ? a : b;
  };
  core._symbolToString = function _symbolToString(symbol) {
    if (symbol == null) dart.nullFailed(I[9], 31, 31, "symbol");
    return T$0.PrivateSymbol()[_is](symbol) ? _js_helper.PrivateSymbol.getName(symbol) : _internal.Symbol.getName(T$0.Symbol$1()[_as](symbol));
  };
  core['DateTimeCopyWith|copyWith'] = function DateTimeCopyWith$124copyWith($this, opts) {
    let t$36390, t$36390$, t$36390$0, t$36390$1, t$36390$2, t$36390$3, t$36390$4, t$36390$5, t$36390$6;
    if ($this == null) dart.nullFailed(I[186], 927, 12, "#this");
    let year = opts && 'year' in opts ? opts.year : null;
    let month = opts && 'month' in opts ? opts.month : null;
    let day = opts && 'day' in opts ? opts.day : null;
    let hour = opts && 'hour' in opts ? opts.hour : null;
    let minute = opts && 'minute' in opts ? opts.minute : null;
    let second = opts && 'second' in opts ? opts.second : null;
    let millisecond = opts && 'millisecond' in opts ? opts.millisecond : null;
    let microsecond = opts && 'microsecond' in opts ? opts.microsecond : null;
    let isUtc = opts && 'isUtc' in opts ? opts.isUtc : null;
    return (dart.test((t$36390 = isUtc, t$36390 == null ? $this.isUtc : t$36390)) ? C[496] || CT.C496 : C[497] || CT.C497)((t$36390$ = year, t$36390$ == null ? $this.year : t$36390$), (t$36390$0 = month, t$36390$0 == null ? $this.month : t$36390$0), (t$36390$1 = day, t$36390$1 == null ? $this.day : t$36390$1), (t$36390$2 = hour, t$36390$2 == null ? $this.hour : t$36390$2), (t$36390$3 = minute, t$36390$3 == null ? $this.minute : t$36390$3), (t$36390$4 = second, t$36390$4 == null ? $this.second : t$36390$4), (t$36390$5 = millisecond, t$36390$5 == null ? $this.millisecond : t$36390$5), (t$36390$6 = microsecond, t$36390$6 == null ? $this.microsecond : t$36390$6));
  };
  core['DateTimeCopyWith|get#copyWith'] = function DateTimeCopyWith$124get$35copyWith($this) {
    if ($this == null) dart.nullFailed(I[186], 927, 12, "#this");
    return dart.fn(opts => {
      let year = opts && 'year' in opts ? opts.year : null;
      let month = opts && 'month' in opts ? opts.month : null;
      let day = opts && 'day' in opts ? opts.day : null;
      let hour = opts && 'hour' in opts ? opts.hour : null;
      let minute = opts && 'minute' in opts ? opts.minute : null;
      let second = opts && 'second' in opts ? opts.second : null;
      let millisecond = opts && 'millisecond' in opts ? opts.millisecond : null;
      let microsecond = opts && 'microsecond' in opts ? opts.microsecond : null;
      let isUtc = opts && 'isUtc' in opts ? opts.isUtc : null;
      return core['DateTimeCopyWith|copyWith']($this, {year: year, month: month, day: day, hour: hour, minute: minute, second: second, millisecond: millisecond, microsecond: microsecond, isUtc: isUtc});
    }, T$8.__ToDateTime$1());
  };
  core['EnumName|get#name'] = function EnumName$124get$35name($this) {
    if ($this == null) dart.nullFailed(I[16], 139, 14, "#this");
    return $this[_name$];
  };
  core['EnumByName|byName'] = function EnumByName$124byName(T, $this, name) {
    if ($this == null) dart.nullFailed(I[16], 164, 5, "#this");
    if (name == null) dart.nullFailed(I[16], 164, 19, "name");
    for (let value of $this) {
      if (value[_name$] == name) return value;
    }
    dart.throw(new core.ArgumentError.value(name, "name", "No enum value with that name"));
  };
  core['EnumByName|get#byName'] = function EnumByName$124get$35byName(T, $this) {
    if ($this == null) dart.nullFailed(I[16], 164, 5, "#this");
    return dart.fn(name => {
      if (name == null) dart.nullFailed(I[16], 164, 19, "name");
      return core['EnumByName|byName'](T, $this, name);
    }, T[_eval]("0(core|String)"));
  };
  core['EnumByName|asNameMap'] = function EnumByName$124asNameMap(T, $this) {
    if ($this == null) dart.nullFailed(I[16], 179, 18, "#this");
    return (() => {
      let t$36395 = new (_js_helper.IdentityMap$(T$.String(), T)).new();
      for (let value of $this)
        t$36395[$_set](value[_name$], value);
      return t$36395;
    })();
  };
  core['EnumByName|get#asNameMap'] = function EnumByName$124get$35asNameMap(T, $this) {
    if ($this == null) dart.nullFailed(I[16], 179, 18, "#this");
    return dart.fn(() => core['EnumByName|asNameMap'](T, $this), T[_eval]("core|Map<core|String,0>()"));
  };
  core.identical = function identical(a, b) {
    return a == null ? b == null : a === b;
  };
  core.identityHashCode = function identityHashCode(object) {
    if (object == null) return 0;
    let hash = object[dart.identityHashCode_];
    if (hash == null) {
      hash = Math.random() * 0x3fffffff | 0;
      object[dart.identityHashCode_] = hash;
    }
    return hash;
  };
  core._iterablePartsToStrings = function _iterablePartsToStrings(iterable, parts) {
    if (iterable == null) dart.nullFailed(I[45], 908, 48, "iterable");
    if (parts == null) dart.nullFailed(I[45], 908, 71, "parts");
    let length = 0;
    let count = 0;
    let it = iterable[$iterator];
    while (length < 80 || count < 3) {
      if (!dart.test(it.moveNext())) return;
      let next = dart.str(it.current);
      parts[$add](next);
      length = length + (next.length + 2);
      count = count + 1;
    }
    let penultimateString = null;
    let ultimateString = null;
    if (!dart.test(it.moveNext())) {
      if (count <= 3 + 2) return;
      ultimateString = parts[$removeLast]();
      penultimateString = parts[$removeLast]();
    } else {
      let penultimate = it.current;
      count = count + 1;
      if (!dart.test(it.moveNext())) {
        if (count <= 3 + 1) {
          parts[$add](dart.str(penultimate));
          return;
        }
        ultimateString = dart.str(penultimate);
        penultimateString = parts[$removeLast]();
        length = length + (ultimateString.length + 2);
      } else {
        let ultimate = it.current;
        count = count + 1;
        if (!(count < 100)) dart.assertFailed(null, I[45], 967, 14, "count < maxCount");
        while (dart.test(it.moveNext())) {
          penultimate = ultimate;
          ultimate = it.current;
          count = count + 1;
          if (count > 100) {
            while (length > 80 - 3 - 2 && count > 3) {
              length = length - (parts[$removeLast]().length + 2);
              count = count - 1;
            }
            parts[$add]("...");
            return;
          }
        }
        penultimateString = dart.str(penultimate);
        ultimateString = dart.str(ultimate);
        length = length + (ultimateString.length + penultimateString.length + 2 * 2);
      }
    }
    let elision = null;
    if (count > dart.notNull(parts[$length]) + 2) {
      elision = "...";
      length = length + (3 + 2);
    }
    while (length > 80 && dart.notNull(parts[$length]) > 3) {
      length = length - (parts[$removeLast]().length + 2);
      if (elision == null) {
        elision = "...";
        length = length + (3 + 2);
      }
    }
    if (elision != null) {
      parts[$add](elision);
    }
    parts[$add](penultimateString);
    parts[$add](ultimateString);
  };
  core.print = function print$0(object) {
    let line = dart.str(object);
    let toZone = _internal.printToZone;
    if (toZone == null) {
      _internal.printToConsole(line);
    } else {
      toZone(line);
    }
  };
  core._isLeadSurrogate = function _isLeadSurrogate$(code) {
    if (code == null) dart.nullFailed(I[194], 799, 27, "code");
    return (dart.notNull(code) & 64512) === 55296;
  };
  core._isTrailSurrogate = function _isTrailSurrogate(code) {
    if (code == null) dart.nullFailed(I[194], 802, 28, "code");
    return (dart.notNull(code) & 64512) === 56320;
  };
  core._combineSurrogatePair = function _combineSurrogatePair$(start, end) {
    if (start == null) dart.nullFailed(I[194], 805, 31, "start");
    if (end == null) dart.nullFailed(I[194], 805, 42, "end");
    return 65536 + ((dart.notNull(start) & 1023) << 10) + (dart.notNull(end) & 1023);
  };
  core._createTables = function _createTables() {
    let unreserved = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-._~";
    let pchar = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-._~!$&'()*+,;=";
    let tables = G$.ListOfUint8List().generate(22, dart.fn(_ => {
      if (_ == null) dart.nullFailed(I[196], 4243, 54, "_");
      return _native_typed_data.NativeUint8List.new(96);
    }, T$0.intToUint8List()));
    function build(state, defaultTransition) {
      let t$36397;
      t$36397 = tables[$_get](T$.int()[_as](state));
      return (() => {
        t$36397[$fillRange](0, 96, T$.intN()[_as](defaultTransition));
        return t$36397;
      })();
    }
    dart.fn(build, T$8.dynamicAnddynamicToUint8List());
    function setChars(target, chars, transition) {
      if (target == null) dart.nullFailed(I[196], 4254, 27, "target");
      if (chars == null) dart.nullFailed(I[196], 4254, 42, "chars");
      if (transition == null) dart.nullFailed(I[196], 4254, 53, "transition");
      for (let i = 0; i < chars.length; i = i + 1) {
        let char = chars[$codeUnitAt](i);
        target[$_set]((char ^ 96) >>> 0, transition);
      }
    }
    dart.fn(setChars, T$8.Uint8ListAndStringAndintTovoid());
    function setRange(target, range, transition) {
      if (target == null) dart.nullFailed(I[196], 4267, 27, "target");
      if (range == null) dart.nullFailed(I[196], 4267, 42, "range");
      if (transition == null) dart.nullFailed(I[196], 4267, 53, "transition");
      for (let i = range[$codeUnitAt](0), n = range[$codeUnitAt](1); i <= n; i = i + 1) {
        target[$_set]((i ^ 96) >>> 0, transition);
      }
    }
    dart.fn(setRange, T$8.Uint8ListAndStringAndintTovoid());
    let b = null;
    b = build(0, (1 | 224) >>> 0);
    setChars(b, pchar, 1);
    setChars(b, ".", 14);
    setChars(b, ":", (2 | 32) >>> 0);
    setChars(b, "/", 3);
    setChars(b, "\\", (3 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(14, (1 | 224) >>> 0);
    setChars(b, pchar, 1);
    setChars(b, ".", 15);
    setChars(b, ":", (2 | 32) >>> 0);
    setChars(b, "/\\", (10 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(15, (1 | 224) >>> 0);
    setChars(b, pchar, 1);
    setChars(b, "%", (1 | 224) >>> 0);
    setChars(b, ":", (2 | 32) >>> 0);
    setChars(b, "/", 9);
    setChars(b, "\\", (9 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(1, (1 | 224) >>> 0);
    setChars(b, pchar, 1);
    setChars(b, ":", (2 | 32) >>> 0);
    setChars(b, "/", 10);
    setChars(b, "\\", (10 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(2, (11 | 224) >>> 0);
    setChars(b, pchar, (11 | 128) >>> 0);
    setChars(b, "/", (3 | 128) >>> 0);
    setChars(b, "\\", (3 | 128) >>> 0);
    setChars(b, ".", (18 | 128) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(3, (11 | 224) >>> 0);
    setChars(b, pchar, 11);
    setChars(b, "/", (4 | 64) >>> 0);
    setChars(b, "\\", (4 | 64) >>> 0);
    setChars(b, ".", 18);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(4, (5 | 224) >>> 0);
    setChars(b, pchar, 5);
    setRange(b, "AZ", (5 | 224) >>> 0);
    setChars(b, ":", (6 | 96) >>> 0);
    setChars(b, "@", (4 | 64) >>> 0);
    setChars(b, "[", (8 | 224) >>> 0);
    setChars(b, "/", (10 | 128) >>> 0);
    setChars(b, "\\", (10 | 128) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(5, (5 | 224) >>> 0);
    setChars(b, pchar, 5);
    setRange(b, "AZ", (5 | 224) >>> 0);
    setChars(b, ":", (6 | 96) >>> 0);
    setChars(b, "@", (4 | 64) >>> 0);
    setChars(b, "/", (10 | 128) >>> 0);
    setChars(b, "\\", (10 | 128) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(6, (7 | 224) >>> 0);
    setRange(b, "19", 7);
    setChars(b, "@", (4 | 64) >>> 0);
    setChars(b, "/", (10 | 128) >>> 0);
    setChars(b, "\\", (10 | 128) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(7, (7 | 224) >>> 0);
    setRange(b, "09", 7);
    setChars(b, "@", (4 | 64) >>> 0);
    setChars(b, "/", (10 | 128) >>> 0);
    setChars(b, "\\", (10 | 128) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(8, 8);
    setChars(b, "]", 5);
    b = build(9, (11 | 224) >>> 0);
    setChars(b, pchar, 11);
    setChars(b, ".", 16);
    setChars(b, "/\\", (10 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(16, (11 | 224) >>> 0);
    setChars(b, pchar, 11);
    setChars(b, ".", 17);
    setChars(b, "/\\", (10 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(17, (11 | 224) >>> 0);
    setChars(b, pchar, 11);
    setChars(b, "/", 9);
    setChars(b, "\\", (9 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(10, (11 | 224) >>> 0);
    setChars(b, pchar, 11);
    setChars(b, ".", 18);
    setChars(b, "/", 10);
    setChars(b, "\\", (10 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(18, (11 | 224) >>> 0);
    setChars(b, pchar, 11);
    setChars(b, ".", 19);
    setChars(b, "/\\", (10 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(19, (11 | 224) >>> 0);
    setChars(b, pchar, 11);
    setChars(b, "/\\", (10 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(11, (11 | 224) >>> 0);
    setChars(b, pchar, 11);
    setChars(b, "/", 10);
    setChars(b, "\\", (10 | 224) >>> 0);
    setChars(b, "?", (12 | 160) >>> 0);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(12, (12 | 224) >>> 0);
    setChars(b, pchar, 12);
    setChars(b, "?", 12);
    setChars(b, "#", (13 | 192) >>> 0);
    b = build(13, (13 | 224) >>> 0);
    setChars(b, pchar, 13);
    setChars(b, "?", 13);
    b = build(20, (21 | 224) >>> 0);
    setRange(b, "az", 21);
    b = build(21, (21 | 224) >>> 0);
    setRange(b, "az", 21);
    setRange(b, "09", 21);
    setChars(b, "+-.", 21);
    return tables;
  };
  core._scan = function _scan(uri, start, end, state, indices) {
    if (uri == null) dart.nullFailed(I[196], 4447, 18, "uri");
    if (start == null) dart.nullFailed(I[196], 4447, 27, "start");
    if (end == null) dart.nullFailed(I[196], 4447, 38, "end");
    if (state == null) dart.nullFailed(I[196], 4447, 47, "state");
    if (indices == null) dart.nullFailed(I[196], 4447, 64, "indices");
    let tables = core._scannerTables;
    if (!(dart.notNull(end) <= uri.length)) dart.assertFailed(null, I[196], 4449, 10, "end <= uri.length");
    for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
      let table = tables[$_get](state);
      let char = (uri[$codeUnitAt](i) ^ 96) >>> 0;
      if (char > 95) char = 31;
      let transition = table[$_get](char);
      state = dart.notNull(transition) & 31;
      indices[$_set](transition[$rightShift](5), i);
    }
    return state;
  };
  core._startsWithData = function _startsWithData(text, start) {
    if (text == null) dart.nullFailed(I[196], 4974, 28, "text");
    if (start == null) dart.nullFailed(I[196], 4974, 38, "start");
    let delta = ((text[$codeUnitAt](dart.notNull(start) + 4) ^ 58) >>> 0) * 3;
    delta = (delta | (text[$codeUnitAt](start) ^ 100) >>> 0) >>> 0;
    delta = (delta | (text[$codeUnitAt](dart.notNull(start) + 1) ^ 97) >>> 0) >>> 0;
    delta = (delta | (text[$codeUnitAt](dart.notNull(start) + 2) ^ 116) >>> 0) >>> 0;
    delta = (delta | (text[$codeUnitAt](dart.notNull(start) + 3) ^ 97) >>> 0) >>> 0;
    return delta;
  };
  core._stringOrNullLength = function _stringOrNullLength(s) {
    return s == null ? 0 : s.length;
  };
  core._toUnmodifiableStringList = function _toUnmodifiableStringList(key, list) {
    if (key == null) dart.nullFailed(I[196], 4987, 47, "key");
    if (list == null) dart.nullFailed(I[196], 4987, 65, "list");
    return G.ListOfString().unmodifiable(list);
  };
  core._skipPackageNameChars = function _skipPackageNameChars(source, start, end) {
    if (source == null) dart.nullFailed(I[196], 4999, 34, "source");
    if (start == null) dart.nullFailed(I[196], 4999, 46, "start");
    if (end == null) dart.nullFailed(I[196], 4999, 57, "end");
    let dots = 0;
    for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
      let char = source[$codeUnitAt](i);
      if (char === 47) return dots !== 0 ? i : -1;
      if (char === 37 || char === 58) return -1;
      dots = (dots | (char ^ 46) >>> 0) >>> 0;
    }
    return -1;
  };
  core._caseInsensitiveStartsWith = function _caseInsensitiveStartsWith(prefix, string, start) {
    if (prefix == null) dart.nullFailed(I[196], 5025, 40, "prefix");
    if (string == null) dart.nullFailed(I[196], 5025, 55, "string");
    if (start == null) dart.nullFailed(I[196], 5025, 67, "start");
    return dart.notNull(core._caseInsensitiveCompareStart(prefix, string, start)) >= 0;
  };
  core._caseInsensitiveCompareStart = function _caseInsensitiveCompareStart(prefix, string, start) {
    if (prefix == null) dart.nullFailed(I[196], 5037, 41, "prefix");
    if (string == null) dart.nullFailed(I[196], 5037, 56, "string");
    if (start == null) dart.nullFailed(I[196], 5037, 68, "start");
    let result = 0;
    for (let i = 0; i < prefix.length; i = i + 1) {
      let prefixChar = prefix[$codeUnitAt](i);
      let stringChar = string[$codeUnitAt](dart.notNull(start) + i);
      let delta = (prefixChar ^ stringChar) >>> 0;
      if (delta !== 0) {
        if (delta === 32) {
          let lowerChar = (stringChar | delta) >>> 0;
          if (97 <= lowerChar && lowerChar <= 122) {
            result = 32;
            continue;
          }
        }
        return -1;
      }
    }
    return result;
  };
  core._caseInsensitiveEquals = function _caseInsensitiveEquals(string1, string2) {
    if (string1 == null) dart.nullFailed(I[196], 5063, 36, "string1");
    if (string2 == null) dart.nullFailed(I[196], 5063, 52, "string2");
    return string1.length === string2.length && dart.test(core._caseInsensitiveStartsWith(string1, string2, 0));
  };
  dart.defineLazy(core, {
    /*core._dummyList*/get _dummyList() {
      return _native_typed_data.NativeUint16List.new(0);
    },
    /*core.deprecated*/get deprecated() {
      return C[498] || CT.C498;
    },
    /*core.override*/get override() {
      return C[499] || CT.C499;
    },
    /*core._hashSeed*/get _hashSeed() {
      return core.identityHashCode(dart_rti.createRuntimeType(T$.Object()));
    },
    /*core._SPACE*/get _SPACE() {
      return 32;
    },
    /*core._PERCENT*/get _PERCENT() {
      return 37;
    },
    /*core._AMPERSAND*/get _AMPERSAND() {
      return 38;
    },
    /*core._PLUS*/get _PLUS() {
      return 43;
    },
    /*core._DOT*/get _DOT() {
      return 46;
    },
    /*core._SLASH*/get _SLASH() {
      return 47;
    },
    /*core._COLON*/get _COLON() {
      return 58;
    },
    /*core._EQUALS*/get _EQUALS() {
      return 61;
    },
    /*core._UPPER_CASE_A*/get _UPPER_CASE_A() {
      return 65;
    },
    /*core._UPPER_CASE_Z*/get _UPPER_CASE_Z() {
      return 90;
    },
    /*core._LEFT_BRACKET*/get _LEFT_BRACKET() {
      return 91;
    },
    /*core._BACKSLASH*/get _BACKSLASH() {
      return 92;
    },
    /*core._RIGHT_BRACKET*/get _RIGHT_BRACKET() {
      return 93;
    },
    /*core._LOWER_CASE_A*/get _LOWER_CASE_A() {
      return 97;
    },
    /*core._LOWER_CASE_F*/get _LOWER_CASE_F() {
      return 102;
    },
    /*core._LOWER_CASE_Z*/get _LOWER_CASE_Z() {
      return 122;
    },
    /*core._hexDigits*/get _hexDigits() {
      return "0123456789ABCDEF";
    },
    /*core._schemeEndIndex*/get _schemeEndIndex() {
      return 1;
    },
    /*core._hostStartIndex*/get _hostStartIndex() {
      return 2;
    },
    /*core._portStartIndex*/get _portStartIndex() {
      return 3;
    },
    /*core._pathStartIndex*/get _pathStartIndex() {
      return 4;
    },
    /*core._queryStartIndex*/get _queryStartIndex() {
      return 5;
    },
    /*core._fragmentStartIndex*/get _fragmentStartIndex() {
      return 6;
    },
    /*core._notSimpleIndex*/get _notSimpleIndex() {
      return 7;
    },
    /*core._uriStart*/get _uriStart() {
      return 0;
    },
    /*core._nonSimpleEndStates*/get _nonSimpleEndStates() {
      return 14;
    },
    /*core._schemeStart*/get _schemeStart() {
      return 20;
    },
    /*core._scannerTables*/get _scannerTables() {
      return core._createTables();
    }
  }, false);
  ui.PointMode = class PointMode extends core._Enum {
    [_enumToString]() {
      return "PointMode." + dart.str(this[_name$]);
    }
  };
  (ui.PointMode.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[197], 7, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[197], 7, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.PointMode).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.PointMode.prototype;
  dart.addRtiResources(ui.PointMode, ["ui|PointMode"]);
  dart.setMethodSignature(ui.PointMode, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PointMode))));
  dart.setLibraryUri(ui.PointMode, I[198]);
  dart.setStaticFieldSignature(ui.PointMode, () => ['values', 'points', 'lines', 'polygon']);
  dart.defineLazy(ui.PointMode, {
    /*ui.PointMode.values*/get values() {
      return C[500] || CT.C500;
    },
    /*ui.PointMode.points*/get points() {
      return C[501] || CT.C501;
    },
    /*ui.PointMode.lines*/get lines() {
      return C[502] || CT.C502;
    },
    /*ui.PointMode.polygon*/get polygon() {
      return C[503] || CT.C503;
    }
  }, false);
  ui.ClipOp = class ClipOp extends core._Enum {
    [_enumToString]() {
      return "ClipOp." + dart.str(this[_name$]);
    }
  };
  (ui.ClipOp.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[197], 13, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[197], 13, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.ClipOp).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.ClipOp.prototype;
  dart.addRtiResources(ui.ClipOp, ["ui|ClipOp"]);
  dart.setMethodSignature(ui.ClipOp, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.ClipOp))));
  dart.setLibraryUri(ui.ClipOp, I[198]);
  dart.setStaticFieldSignature(ui.ClipOp, () => ['values', 'difference', 'intersect']);
  dart.defineLazy(ui.ClipOp, {
    /*ui.ClipOp.values*/get values() {
      return C[504] || CT.C504;
    },
    /*ui.ClipOp.difference*/get difference() {
      return C[505] || CT.C505;
    },
    /*ui.ClipOp.intersect*/get intersect() {
      return C[506] || CT.C506;
    }
  }, false);
  ui.VertexMode = class VertexMode extends core._Enum {
    [_enumToString]() {
      return "VertexMode." + dart.str(this[_name$]);
    }
  };
  (ui.VertexMode.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[197], 18, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[197], 18, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.VertexMode).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.VertexMode.prototype;
  dart.addRtiResources(ui.VertexMode, ["ui|VertexMode"]);
  dart.setMethodSignature(ui.VertexMode, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.VertexMode))));
  dart.setLibraryUri(ui.VertexMode, I[198]);
  dart.setStaticFieldSignature(ui.VertexMode, () => ['values', 'triangles', 'triangleStrip', 'triangleFan']);
  dart.defineLazy(ui.VertexMode, {
    /*ui.VertexMode.values*/get values() {
      return C[507] || CT.C507;
    },
    /*ui.VertexMode.triangles*/get triangles() {
      return C[508] || CT.C508;
    },
    /*ui.VertexMode.triangleStrip*/get triangleStrip() {
      return C[509] || CT.C509;
    },
    /*ui.VertexMode.triangleFan*/get triangleFan() {
      return C[510] || CT.C510;
    }
  }, false);
  ui.Vertices = class Vertices extends core.Object {
    static new(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[197], 26, 16, "mode");
      if (positions == null) dart.nullFailed(I[197], 27, 18, "positions");
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return _engine.renderer.createVertices(mode, positions, {textureCoordinates: textureCoordinates, colors: colors, indices: indices});
    }
    static ['_#new#tearOff'](mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[197], 26, 16, "mode");
      if (positions == null) dart.nullFailed(I[197], 27, 18, "positions");
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return ui.Vertices.new(mode, positions, {colors: colors, textureCoordinates: textureCoordinates, indices: indices});
    }
    static raw(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[197], 39, 16, "mode");
      if (positions == null) dart.nullFailed(I[197], 40, 17, "positions");
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return _engine.renderer.createVerticesRaw(mode, positions, {textureCoordinates: textureCoordinates, colors: colors, indices: indices});
    }
    static ['_#raw#tearOff'](mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[197], 39, 16, "mode");
      if (positions == null) dart.nullFailed(I[197], 40, 17, "positions");
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return ui.Vertices.raw(mode, positions, {colors: colors, textureCoordinates: textureCoordinates, indices: indices});
    }
  };
  (ui.Vertices[dart.mixinNew] = function() {
  }).prototype = ui.Vertices.prototype;
  dart.addRtiResources(ui.Vertices, ["ui|Vertices"]);
  dart.setStaticMethodSignature(ui.Vertices, () => ['new', 'raw']);
  dart.setLibraryUri(ui.Vertices, I[198]);
  ui.PictureRecorder = class PictureRecorder extends core.Object {
    static new() {
      return _engine.renderer.createPictureRecorder();
    }
    static ['_#new#tearOff']() {
      return ui.PictureRecorder.new();
    }
  };
  (ui.PictureRecorder[dart.mixinNew] = function() {
  }).prototype = ui.PictureRecorder.prototype;
  dart.addRtiResources(ui.PictureRecorder, ["ui|PictureRecorder"]);
  dart.setStaticMethodSignature(ui.PictureRecorder, () => ['new']);
  dart.setLibraryUri(ui.PictureRecorder, I[198]);
  ui.Canvas = class Canvas extends core.Object {
    static new(recorder, cullRect = null) {
      if (recorder == null) dart.nullFailed(I[197], 63, 34, "recorder");
      return _engine.renderer.createCanvas(recorder, cullRect);
    }
    static ['_#new#tearOff'](recorder, cullRect = null) {
      if (recorder == null) dart.nullFailed(I[197], 63, 34, "recorder");
      return ui.Canvas.new(recorder, cullRect);
    }
  };
  (ui.Canvas[dart.mixinNew] = function() {
  }).prototype = ui.Canvas.prototype;
  dart.addRtiResources(ui.Canvas, ["ui|Canvas"]);
  dart.setStaticMethodSignature(ui.Canvas, () => ['new']);
  dart.setLibraryUri(ui.Canvas, I[198]);
  ui.Picture = class Picture extends core.Object {};
  (ui.Picture.new = function() {
    ;
  }).prototype = ui.Picture.prototype;
  dart.addRtiResources(ui.Picture, ["ui|Picture"]);
  dart.setLibraryUri(ui.Picture, I[198]);
  dart.setStaticFieldSignature(ui.Picture, () => ['onCreate', 'onDispose']);
  dart.defineLazy(ui.Picture, {
    /*ui.Picture.onCreate*/get onCreate() {
      return null;
    },
    set onCreate(value) {},
    /*ui.Picture.onDispose*/get onDispose() {
      return null;
    },
    set onDispose(value) {}
  }, false);
  ui.PathFillType = class PathFillType extends core._Enum {
    [_enumToString]() {
      return "PathFillType." + dart.str(this[_name$]);
    }
  };
  (ui.PathFillType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[197], 140, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[197], 140, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.PathFillType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.PathFillType.prototype;
  dart.addRtiResources(ui.PathFillType, ["ui|PathFillType"]);
  dart.setMethodSignature(ui.PathFillType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PathFillType))));
  dart.setLibraryUri(ui.PathFillType, I[198]);
  dart.setStaticFieldSignature(ui.PathFillType, () => ['values', 'nonZero', 'evenOdd']);
  dart.defineLazy(ui.PathFillType, {
    /*ui.PathFillType.values*/get values() {
      return C[511] || CT.C511;
    },
    /*ui.PathFillType.nonZero*/get nonZero() {
      return C[512] || CT.C512;
    },
    /*ui.PathFillType.evenOdd*/get evenOdd() {
      return C[513] || CT.C513;
    }
  }, false);
  ui.PathOperation = class PathOperation extends core._Enum {
    [_enumToString]() {
      return "PathOperation." + dart.str(this[_name$]);
    }
  };
  (ui.PathOperation.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[197], 146, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[197], 146, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.PathOperation).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.PathOperation.prototype;
  dart.addRtiResources(ui.PathOperation, ["ui|PathOperation"]);
  dart.setMethodSignature(ui.PathOperation, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PathOperation))));
  dart.setLibraryUri(ui.PathOperation, I[198]);
  dart.setStaticFieldSignature(ui.PathOperation, () => ['values', 'difference', 'intersect', 'union', 'xor', 'reverseDifference']);
  dart.defineLazy(ui.PathOperation, {
    /*ui.PathOperation.values*/get values() {
      return C[514] || CT.C514;
    },
    /*ui.PathOperation.difference*/get difference() {
      return C[515] || CT.C515;
    },
    /*ui.PathOperation.intersect*/get intersect() {
      return C[516] || CT.C516;
    },
    /*ui.PathOperation.union*/get union() {
      return C[517] || CT.C517;
    },
    /*ui.PathOperation.xor*/get xor() {
      return C[518] || CT.C518;
    },
    /*ui.PathOperation.reverseDifference*/get reverseDifference() {
      return C[519] || CT.C519;
    }
  }, false);
  var stack = dart.privateName(ui, "PictureRasterizationException.stack");
  ui.PictureRasterizationException = class PictureRasterizationException extends core.Object {
    get stack() {
      return this[stack];
    }
    set stack(value) {
      this[stack] = value;
    }
  };
  (ui.PictureRasterizationException.new = function() {
    this[stack] = null;
    ;
  }).prototype = ui.PictureRasterizationException.prototype;
  dart.addRtiResources(ui.PictureRasterizationException, ["ui|PictureRasterizationException", "core|Exception"]);
  dart.setLibraryUri(ui.PictureRasterizationException, I[198]);
  dart.setFieldSignature(ui.PictureRasterizationException, () => dart.global.Object.setPrototypeOf({stack: {type: T$.StackTraceN(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.PictureRasterizationException))));
  var _callback$0 = dart.privateName(ui, "_callback");
  var _zone$0 = dart.privateName(ui, "_zone");
  ui._ChannelCallbackRecord = class _ChannelCallbackRecord extends core.Object {
    static ['_#new#tearOff'](_callback) {
      if (_callback == null) dart.nullFailed(I[199], 20, 31, "_callback");
      return new ui._ChannelCallbackRecord.new(_callback);
    }
    invoke(dataArg, callbackArg) {
      if (callbackArg == null) dart.nullFailed(I[199], 24, 66, "callbackArg");
      _engine.invoke2(T$4.ByteDataN(), T$8.ByteDataNTovoid(), this[_callback$0], this[_zone$0], dataArg, callbackArg);
    }
  };
  (ui._ChannelCallbackRecord.new = function(_callback) {
    if (_callback == null) dart.nullFailed(I[199], 20, 31, "_callback");
    this[_callback$0] = _callback;
    this[_zone$0] = async.Zone.current;
    ;
  }).prototype = ui._ChannelCallbackRecord.prototype;
  dart.addRtiResources(ui._ChannelCallbackRecord, ["ui|_ChannelCallbackRecord"]);
  dart.setMethodSignature(ui._ChannelCallbackRecord, () => dart.global.Object.setPrototypeOf({invoke: T$8.ByteDataNAndFnTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui._ChannelCallbackRecord))));
  dart.setLibraryUri(ui._ChannelCallbackRecord, I[198]);
  dart.setFieldSignature(ui._ChannelCallbackRecord, () => dart.global.Object.setPrototypeOf({
    [_callback$0]: {type: T$8.ByteDataNAndFnTovoid(), isConst: false, isFinal: true},
    [_zone$0]: {type: T$.Zone(), isConst: false, isFinal: true, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui._ChannelCallbackRecord))));
  ui._StoredMessage = class _StoredMessage extends core.Object {
    static ['_#new#tearOff'](data, _callback) {
      if (_callback == null) dart.nullFailed(I[199], 30, 34, "_callback");
      return new ui._StoredMessage.new(data, _callback);
    }
    invoke(dataArg) {
      _engine.invoke1(T$4.ByteDataN(), this[_callback$0], this[_zone$0], dataArg);
    }
  };
  (ui._StoredMessage.new = function(data, _callback) {
    if (_callback == null) dart.nullFailed(I[199], 30, 34, "_callback");
    this.data = data;
    this[_callback$0] = _callback;
    this[_zone$0] = async.Zone.current;
    ;
  }).prototype = ui._StoredMessage.prototype;
  dart.addRtiResources(ui._StoredMessage, ["ui|_StoredMessage"]);
  dart.setMethodSignature(ui._StoredMessage, () => dart.global.Object.setPrototypeOf({invoke: T$8.ByteDataNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui._StoredMessage))));
  dart.setLibraryUri(ui._StoredMessage, I[198]);
  dart.setFieldSignature(ui._StoredMessage, () => dart.global.Object.setPrototypeOf({
    data: {type: T$4.ByteDataN(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_callback$0]: {type: T$8.ByteDataNTovoid(), isConst: false, isFinal: true},
    [_zone$0]: {type: T$.Zone(), isConst: false, isFinal: true, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui._StoredMessage))));
  var _draining = dart.privateName(ui, "_draining");
  var _channelCallbackRecord = dart.privateName(ui, "_channelCallbackRecord");
  var _capacity$ = dart.privateName(ui, "_capacity");
  var _queue = dart.privateName(ui, "_queue");
  var _dropOverflowMessages = dart.privateName(ui, "_dropOverflowMessages");
  var _drain = dart.privateName(ui, "_drain");
  var _drainStep = dart.privateName(ui, "_drainStep");
  ui._Channel = class _Channel extends core.Object {
    static ['_#new#tearOff'](_capacity = 1) {
      if (_capacity == null) dart.nullFailed(I[199], 44, 19, "_capacity");
      return new ui._Channel.new(_capacity);
    }
    get length() {
      return this[_queue].length;
    }
    get capacity() {
      return this[_capacity$];
    }
    set capacity(newSize) {
      if (newSize == null) dart.nullFailed(I[199], 55, 20, "newSize");
      this[_capacity$] = newSize;
      this[_dropOverflowMessages](newSize);
    }
    push(message) {
      if (message == null) dart.nullFailed(I[199], 62, 28, "message");
      if (!dart.test(this[_draining]) && this[_channelCallbackRecord] != null) {
        if (!dart.test(this[_queue].isEmpty)) dart.assertFailed(null, I[199], 64, 14, "_queue.isEmpty");
        dart.nullCheck(this[_channelCallbackRecord]).invoke(message.data, dart.bind(message, 'invoke'));
        return false;
      }
      if (dart.notNull(this[_capacity$]) <= 0) {
        return this.debugEnableDiscardWarnings;
      }
      let result = this[_dropOverflowMessages](dart.notNull(this[_capacity$]) - 1);
      this[_queue].addLast(message);
      return result;
    }
    pop() {
      return this[_queue].removeFirst();
    }
    [_dropOverflowMessages](lengthLimit) {
      if (lengthLimit == null) dart.nullFailed(I[199], 78, 34, "lengthLimit");
      let result = false;
      while (dart.notNull(this[_queue].length) > dart.notNull(lengthLimit)) {
        let message = this[_queue].removeFirst();
        message.invoke(null);
        result = true;
      }
      return result;
    }
    setListener(callback) {
      if (callback == null) dart.nullFailed(I[199], 90, 36, "callback");
      let needDrain = this[_channelCallbackRecord] == null;
      this[_channelCallbackRecord] = new ui._ChannelCallbackRecord.new(callback);
      if (needDrain && !dart.test(this[_draining])) {
        this[_drain]();
      }
    }
    clearListener() {
      this[_channelCallbackRecord] = null;
    }
    [_drain]() {
      if (!!dart.test(this[_draining])) dart.assertFailed(null, I[199], 103, 12, "!_draining");
      this[_draining] = true;
      async.scheduleMicrotask(dart.bind(this, _drainStep));
    }
    [_drainStep]() {
      if (!dart.test(this[_draining])) dart.assertFailed(null, I[199], 109, 12, "_draining");
      if (dart.test(this[_queue][$isNotEmpty]) && this[_channelCallbackRecord] != null) {
        let message = this.pop();
        dart.nullCheck(this[_channelCallbackRecord]).invoke(message.data, dart.bind(message, 'invoke'));
        async.scheduleMicrotask(dart.bind(this, _drainStep));
      } else {
        this[_draining] = false;
      }
    }
  };
  (ui._Channel.new = function(_capacity = 1) {
    if (_capacity == null) dart.nullFailed(I[199], 44, 19, "_capacity");
    this.debugEnableDiscardWarnings = true;
    this[_draining] = false;
    this[_channelCallbackRecord] = null;
    this[_capacity$] = _capacity;
    this[_queue] = new (G$.ListQueueOf_StoredMessage()).new(_capacity);
    ;
  }).prototype = ui._Channel.prototype;
  dart.addRtiResources(ui._Channel, ["ui|_Channel"]);
  dart.setMethodSignature(ui._Channel, () => dart.global.Object.setPrototypeOf({
    push: T$8._StoredMessageTobool(),
    pop: T$8.VoidTo_StoredMessage(),
    [_dropOverflowMessages]: T$.intTobool(),
    setListener: T$8.FnTovoid$35(),
    clearListener: T$.VoidTovoid(),
    [_drain]: T$.VoidTovoid(),
    [_drainStep]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui._Channel))));
  dart.setGetterSignature(ui._Channel, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    capacity: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui._Channel))));
  dart.setSetterSignature(ui._Channel, () => dart.global.Object.setPrototypeOf({capacity: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(ui._Channel))));
  dart.setLibraryUri(ui._Channel, I[198]);
  dart.setFieldSignature(ui._Channel, () => dart.global.Object.setPrototypeOf({
    [_queue]: {type: T$8.ListQueueOf_StoredMessage(), isConst: false, isFinal: true, libraryUri: I[24]},
    debugEnableDiscardWarnings: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_capacity$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_draining]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_channelCallbackRecord]: {type: T$8._ChannelCallbackRecordN(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui._Channel))));
  var _channels = dart.privateName(ui, "_channels");
  ui.ChannelBuffers = class ChannelBuffers extends core.Object {
    static ['_#new#tearOff']() {
      return new ui.ChannelBuffers.new();
    }
    push(name, data, callback) {
      if (name == null) dart.nullFailed(I[199], 129, 20, "name");
      if (callback == null) dart.nullFailed(I[199], 129, 74, "callback");
      let channel = this[_channels][$putIfAbsent](name, dart.fn(() => new ui._Channel.new(), T$8.VoidTo_Channel()));
      if (dart.test(channel.push(new ui._StoredMessage.new(data, callback)))) {
        if (!dart.test(dart.fn(() => {
          core.print("A message on the " + dart.str(name) + " channel was discarded before it could be handled.\n" + "This happens when a plugin sends messages to the framework side before the " + "framework has had an opportunity to register a listener. See the ChannelBuffers " + "API documentation for details on how to configure the channel to expect more " + "messages, or to expect messages to get discarded:\n" + "  https://api.flutter.dev/flutter/dart-ui/ChannelBuffers-class.html");
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[199], 132, 14, "() {\n        print(\n          'A message on the $name channel was discarded before it could be handled.\\n'\n          'This happens when a plugin sends messages to the framework side before the '\n          'framework has had an opportunity to register a listener. See the ChannelBuffers '\n          'API documentation for details on how to configure the channel to expect more '\n          'messages, or to expect messages to get discarded:\\n'\n          '  https://api.flutter.dev/flutter/dart-ui/ChannelBuffers-class.html'\n        );\n        return true;\n      }()");
      }
    }
    setListener(name, callback) {
      if (name == null) dart.nullFailed(I[199], 146, 27, "name");
      if (callback == null) dart.nullFailed(I[199], 146, 49, "callback");
      let channel = this[_channels][$putIfAbsent](name, dart.fn(() => new ui._Channel.new(), T$8.VoidTo_Channel()));
      channel.setListener(callback);
    }
    clearListener(name) {
      if (name == null) dart.nullFailed(I[199], 151, 29, "name");
      let channel = this[_channels][$_get](name);
      if (channel != null) {
        channel.clearListener();
      }
    }
    drain(name, callback) {
      if (name == null) dart.nullFailed(I[199], 158, 29, "name");
      if (callback == null) dart.nullFailed(I[199], 158, 56, "callback");
      return async.async(T$.void(), (function* drain() {
        let channel = this[_channels][$_get](name);
        while (channel != null && !dart.test(channel[_queue].isEmpty)) {
          let message = channel.pop();
          yield callback(message.data, dart.bind(message, 'invoke'));
        }
      }).bind(this));
    }
    handleMessage(data) {
      if (data == null) dart.nullFailed(I[199], 166, 31, "data");
      let bytes = data[$buffer][$asUint8List](data[$offsetInBytes], data[$lengthInBytes]);
      if (bytes[$_get](0) === 7) {
        let methodNameLength = bytes[$_get](1);
        if (dart.notNull(methodNameLength) >= 254) {
          dart.throw(core.Exception.new("Unrecognized message sent to dev.flutter/channel-buffers (method name too long)"));
        }
        let index = 2;
        let methodName = convert.utf8.decode(bytes[$sublist](index, index + dart.notNull(methodNameLength)));
        index = index + dart.notNull(methodNameLength);
        switch (methodName) {
          case "resize":
            {
              if (bytes[$_get](index) !== 12) {
                dart.throw(core.Exception.new("Invalid arguments for 'resize' method sent to dev.flutter/channel-buffers (arguments must be a two-element list, channel name and new capacity)"));
              }
              index = index + 1;
              if (dart.notNull(bytes[$_get](index)) < 2) {
                dart.throw(core.Exception.new("Invalid arguments for 'resize' method sent to dev.flutter/channel-buffers (arguments must be a two-element list, channel name and new capacity)"));
              }
              index = index + 1;
              if (bytes[$_get](index) !== 7) {
                dart.throw(core.Exception.new("Invalid arguments for 'resize' method sent to dev.flutter/channel-buffers (first argument must be a string)"));
              }
              index = index + 1;
              let channelNameLength = bytes[$_get](index);
              if (dart.notNull(channelNameLength) >= 254) {
                dart.throw(core.Exception.new("Invalid arguments for 'resize' method sent to dev.flutter/channel-buffers (channel name must be less than 254 characters long)"));
              }
              index = index + 1;
              let channelName = convert.utf8.decode(bytes[$sublist](index, index + dart.notNull(channelNameLength)));
              index = index + dart.notNull(channelNameLength);
              if (bytes[$_get](index) !== 3) {
                dart.throw(core.Exception.new("Invalid arguments for 'resize' method sent to dev.flutter/channel-buffers (second argument must be an integer in the range 0 to 2147483647)"));
              }
              index = index + 1;
              this.resize(channelName, data[$getUint32](index, typed_data.Endian.host));
              break;
            }
          case "overflow":
            {
              if (bytes[$_get](index) !== 12) {
                dart.throw(core.Exception.new("Invalid arguments for 'overflow' method sent to dev.flutter/channel-buffers (arguments must be a two-element list, channel name and flag state)"));
              }
              index = index + 1;
              if (dart.notNull(bytes[$_get](index)) < 2) {
                dart.throw(core.Exception.new("Invalid arguments for 'overflow' method sent to dev.flutter/channel-buffers (arguments must be a two-element list, channel name and flag state)"));
              }
              index = index + 1;
              if (bytes[$_get](index) !== 7) {
                dart.throw(core.Exception.new("Invalid arguments for 'overflow' method sent to dev.flutter/channel-buffers (first argument must be a string)"));
              }
              index = index + 1;
              let channelNameLength = bytes[$_get](index);
              if (dart.notNull(channelNameLength) >= 254) {
                dart.throw(core.Exception.new("Invalid arguments for 'overflow' method sent to dev.flutter/channel-buffers (channel name must be less than 254 characters long)"));
              }
              index = index + 1;
              let channelName = convert.utf8.decode(bytes[$sublist](index, index + dart.notNull(channelNameLength)));
              index = index + dart.notNull(channelNameLength);
              if (bytes[$_get](index) !== 1 && bytes[$_get](index) !== 2) {
                dart.throw(core.Exception.new("Invalid arguments for 'overflow' method sent to dev.flutter/channel-buffers (second argument must be a boolean)"));
              }
              this.allowOverflow(channelName, bytes[$_get](index) === 1);
              break;
            }
          default:
            {
              dart.throw(core.Exception.new("Unrecognized method '" + dart.str(methodName) + "' sent to " + "dev.flutter/channel-buffers"));
            }
        }
      } else {
        let parts = convert.utf8.decode(bytes)[$split]("\r");
        if (parts[$length] === 1 + 2 && parts[$_get](0) === "resize") {
          this.resize(parts[$_get](1), core.int.parse(parts[$_get](2)));
        } else {
          dart.throw(core.Exception.new("Unrecognized message " + dart.str(parts) + " sent to " + "dev.flutter/channel-buffers" + "."));
        }
      }
    }
    resize(name, newSize) {
      if (name == null) dart.nullFailed(I[199], 239, 22, "name");
      if (newSize == null) dart.nullFailed(I[199], 239, 32, "newSize");
      let channel = this[_channels][$_get](name);
      if (channel == null) {
        channel = new ui._Channel.new(newSize);
        this[_channels][$_set](name, channel);
      } else {
        channel.capacity = newSize;
      }
    }
    allowOverflow(name, allowed) {
      if (name == null) dart.nullFailed(I[199], 249, 29, "name");
      if (allowed == null) dart.nullFailed(I[199], 249, 40, "allowed");
      if (!dart.test(dart.fn(() => {
        let t$36407;
        let channel = this[_channels][$_get](name);
        if (channel == null && dart.test(allowed)) {
          channel = new ui._Channel.new();
          this[_channels][$_set](name, channel);
        }
        t$36407 = channel;
        t$36407 == null ? null : t$36407.debugEnableDiscardWarnings = !dart.test(allowed);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[199], 250, 12, "() {\n      _Channel? channel = _channels[name];\n      if (channel == null && allowed) {\n        channel = _Channel();\n        _channels[name] = channel;\n      }\n      channel?.debugEnableDiscardWarnings = !allowed;\n      return true;\n    }()");
    }
    sendChannelUpdate(name, opts) {
      if (name == null) dart.nullFailed(I[199], 261, 33, "name");
      let listening = opts && 'listening' in opts ? opts.listening : null;
      if (listening == null) dart.nullFailed(I[199], 261, 54, "listening");
    }
  };
  (ui.ChannelBuffers.new = function() {
    this[_channels] = new (G$.IdentityMapOfString$_Channel()).new();
    ;
  }).prototype = ui.ChannelBuffers.prototype;
  dart.addRtiResources(ui.ChannelBuffers, ["ui|ChannelBuffers"]);
  dart.setMethodSignature(ui.ChannelBuffers, () => dart.global.Object.setPrototypeOf({
    push: T$8.StringAndByteDataNAndFnTovoid(),
    setListener: T$8.StringAndFnTovoid$1(),
    clearListener: T$.StringTovoid(),
    drain: T$8.StringAndFnToFutureOfvoid(),
    handleMessage: T$8.ByteDataTovoid(),
    resize: T$8.StringAndintTovoid(),
    allowOverflow: T$8.StringAndboolTovoid(),
    sendChannelUpdate: T$8.String__Tovoid$8()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.ChannelBuffers))));
  dart.setLibraryUri(ui.ChannelBuffers, I[198]);
  dart.setFieldSignature(ui.ChannelBuffers, () => dart.global.Object.setPrototypeOf({[_channels]: {type: T$8.MapOfString$_Channel(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.ChannelBuffers))));
  dart.setStaticFieldSignature(ui.ChannelBuffers, () => ['kDefaultBufferSize', 'kControlChannelName']);
  dart.defineLazy(ui.ChannelBuffers, {
    /*ui.ChannelBuffers.kDefaultBufferSize*/get kDefaultBufferSize() {
      return 1;
    },
    /*ui.ChannelBuffers.kControlChannelName*/get kControlChannelName() {
      return "dev.flutter/channel-buffers";
    }
  }, false);
  ui.Scene = class Scene extends core.Object {};
  (ui.Scene.new = function() {
    ;
  }).prototype = ui.Scene.prototype;
  dart.addRtiResources(ui.Scene, ["ui|Scene"]);
  dart.setLibraryUri(ui.Scene, I[198]);
  ui.TransformEngineLayer = class TransformEngineLayer extends core.Object {};
  (ui.TransformEngineLayer.new = function() {
    ;
  }).prototype = ui.TransformEngineLayer.prototype;
  dart.addRtiResources(ui.TransformEngineLayer, ["ui|TransformEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.TransformEngineLayer, I[198]);
  ui.OffsetEngineLayer = class OffsetEngineLayer extends core.Object {};
  (ui.OffsetEngineLayer.new = function() {
    ;
  }).prototype = ui.OffsetEngineLayer.prototype;
  dart.addRtiResources(ui.OffsetEngineLayer, ["ui|OffsetEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.OffsetEngineLayer, I[198]);
  ui.ClipRectEngineLayer = class ClipRectEngineLayer extends core.Object {};
  (ui.ClipRectEngineLayer.new = function() {
    ;
  }).prototype = ui.ClipRectEngineLayer.prototype;
  dart.addRtiResources(ui.ClipRectEngineLayer, ["ui|ClipRectEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.ClipRectEngineLayer, I[198]);
  ui.ClipRRectEngineLayer = class ClipRRectEngineLayer extends core.Object {};
  (ui.ClipRRectEngineLayer.new = function() {
    ;
  }).prototype = ui.ClipRRectEngineLayer.prototype;
  dart.addRtiResources(ui.ClipRRectEngineLayer, ["ui|ClipRRectEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.ClipRRectEngineLayer, I[198]);
  ui.ClipPathEngineLayer = class ClipPathEngineLayer extends core.Object {};
  (ui.ClipPathEngineLayer.new = function() {
    ;
  }).prototype = ui.ClipPathEngineLayer.prototype;
  dart.addRtiResources(ui.ClipPathEngineLayer, ["ui|ClipPathEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.ClipPathEngineLayer, I[198]);
  ui.OpacityEngineLayer = class OpacityEngineLayer extends core.Object {};
  (ui.OpacityEngineLayer.new = function() {
    ;
  }).prototype = ui.OpacityEngineLayer.prototype;
  dart.addRtiResources(ui.OpacityEngineLayer, ["ui|OpacityEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.OpacityEngineLayer, I[198]);
  ui.ColorFilterEngineLayer = class ColorFilterEngineLayer extends core.Object {};
  (ui.ColorFilterEngineLayer.new = function() {
    ;
  }).prototype = ui.ColorFilterEngineLayer.prototype;
  dart.addRtiResources(ui.ColorFilterEngineLayer, ["ui|ColorFilterEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.ColorFilterEngineLayer, I[198]);
  ui.ImageFilterEngineLayer = class ImageFilterEngineLayer extends core.Object {};
  (ui.ImageFilterEngineLayer.new = function() {
    ;
  }).prototype = ui.ImageFilterEngineLayer.prototype;
  dart.addRtiResources(ui.ImageFilterEngineLayer, ["ui|ImageFilterEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.ImageFilterEngineLayer, I[198]);
  ui.BackdropFilterEngineLayer = class BackdropFilterEngineLayer extends core.Object {};
  (ui.BackdropFilterEngineLayer.new = function() {
    ;
  }).prototype = ui.BackdropFilterEngineLayer.prototype;
  dart.addRtiResources(ui.BackdropFilterEngineLayer, ["ui|BackdropFilterEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.BackdropFilterEngineLayer, I[198]);
  ui.ShaderMaskEngineLayer = class ShaderMaskEngineLayer extends core.Object {};
  (ui.ShaderMaskEngineLayer.new = function() {
    ;
  }).prototype = ui.ShaderMaskEngineLayer.prototype;
  dart.addRtiResources(ui.ShaderMaskEngineLayer, ["ui|ShaderMaskEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(ui.ShaderMaskEngineLayer, I[198]);
  ui.SceneBuilder = class SceneBuilder extends core.Object {
    static new() {
      return _engine.renderer.createSceneBuilder();
    }
    static ['_#new#tearOff']() {
      return ui.SceneBuilder.new();
    }
  };
  (ui.SceneBuilder[dart.mixinNew] = function() {
  }).prototype = ui.SceneBuilder.prototype;
  dart.addRtiResources(ui.SceneBuilder, ["ui|SceneBuilder"]);
  dart.setStaticMethodSignature(ui.SceneBuilder, () => ['new']);
  dart.setLibraryUri(ui.SceneBuilder, I[198]);
  ui.EngineLayer = class EngineLayer extends core.Object {
    dispose() {
    }
    static ['_#new#tearOff']() {
      return new ui.EngineLayer.new();
    }
  };
  (ui.EngineLayer.new = function() {
    ;
  }).prototype = ui.EngineLayer.prototype;
  dart.addRtiResources(ui.EngineLayer, ["ui|EngineLayer"]);
  dart.setMethodSignature(ui.EngineLayer, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.EngineLayer))));
  dart.setLibraryUri(ui.EngineLayer, I[198]);
  var _dx$ = dart.privateName(ui, "OffsetBase._dx");
  var _dy$ = dart.privateName(ui, "OffsetBase._dy");
  var _dx = dart.privateName(ui, "_dx");
  var _dy = dart.privateName(ui, "_dy");
  ui.OffsetBase = class OffsetBase extends core.Object {
    get [_dx]() {
      return this[_dx$];
    }
    set [_dx](value) {
      super[_dx] = value;
    }
    get [_dy]() {
      return this[_dy$];
    }
    set [_dy](value) {
      super[_dy] = value;
    }
    get isInfinite() {
      return dart.notNull(this[_dx]) >= 1 / 0 || dart.notNull(this[_dy]) >= 1 / 0;
    }
    get isFinite() {
      return this[_dx][$isFinite] && this[_dy][$isFinite];
    }
    ['<'](other) {
      if (other == null) dart.nullFailed(I[200], 20, 30, "other");
      return dart.notNull(this[_dx]) < dart.notNull(other[_dx]) && dart.notNull(this[_dy]) < dart.notNull(other[_dy]);
    }
    ['<='](other) {
      if (other == null) dart.nullFailed(I[200], 21, 31, "other");
      return dart.notNull(this[_dx]) <= dart.notNull(other[_dx]) && dart.notNull(this[_dy]) <= dart.notNull(other[_dy]);
    }
    ['>'](other) {
      if (other == null) dart.nullFailed(I[200], 22, 30, "other");
      return dart.notNull(this[_dx]) > dart.notNull(other[_dx]) && dart.notNull(this[_dy]) > dart.notNull(other[_dy]);
    }
    ['>='](other) {
      if (other == null) dart.nullFailed(I[200], 23, 31, "other");
      return dart.notNull(this[_dx]) >= dart.notNull(other[_dx]) && dart.notNull(this[_dy]) >= dart.notNull(other[_dy]);
    }
    _equals(other) {
      if (other == null) return false;
      return T$8.OffsetBase()[_is](other) && other[_dx] == this[_dx] && other[_dy] == this[_dy];
    }
    get hashCode() {
      return core.Object.hash(this[_dx], this[_dy]);
    }
    toString() {
      return "OffsetBase(" + this[_dx][$toStringAsFixed](1) + ", " + this[_dy][$toStringAsFixed](1) + ")";
    }
  };
  (ui.OffsetBase.new = function(_dx, _dy) {
    if (_dx == null) dart.nullFailed(I[200], 14, 25, "_dx");
    if (_dy == null) dart.nullFailed(I[200], 14, 35, "_dy");
    this[_dx$] = _dx;
    this[_dy$] = _dy;
    ;
  }).prototype = ui.OffsetBase.prototype;
  dart.addRtiResources(ui.OffsetBase, ["ui|OffsetBase"]);
  dart.setMethodSignature(ui.OffsetBase, () => dart.global.Object.setPrototypeOf({
    '<': T$8.OffsetBaseTobool(),
    '<=': T$8.OffsetBaseTobool(),
    '>': T$8.OffsetBaseTobool(),
    '>=': T$8.OffsetBaseTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.OffsetBase))));
  dart.setGetterSignature(ui.OffsetBase, () => dart.global.Object.setPrototypeOf({
    isInfinite: T$.bool(),
    isFinite: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.OffsetBase))));
  dart.setLibraryUri(ui.OffsetBase, I[198]);
  dart.setFieldSignature(ui.OffsetBase, () => dart.global.Object.setPrototypeOf({
    [_dx]: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_dy]: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.OffsetBase))));
  dart.defineExtensionMethods(ui.OffsetBase, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.OffsetBase, ['hashCode']);
  ui.Offset = class Offset extends ui.OffsetBase {
    static ['_#new#tearOff'](dx, dy) {
      if (dx == null) dart.nullFailed(I[200], 39, 22, "dx");
      if (dy == null) dart.nullFailed(I[200], 39, 32, "dy");
      return new ui.Offset.new(dx, dy);
    }
    static fromDirection(direction, distance = 1) {
      if (direction == null) dart.nullFailed(I[200], 40, 39, "direction");
      if (distance == null) dart.nullFailed(I[200], 40, 59, "distance");
      return new ui.Offset.new(dart.notNull(distance) * math.cos(direction), dart.notNull(distance) * math.sin(direction));
    }
    static ['_#fromDirection#tearOff'](direction, distance = 1) {
      if (direction == null) dart.nullFailed(I[200], 40, 39, "direction");
      if (distance == null) dart.nullFailed(I[200], 40, 59, "distance");
      return ui.Offset.fromDirection(direction, distance);
    }
    get dx() {
      return this[_dx];
    }
    get dy() {
      return this[_dy];
    }
    get distance() {
      return math.sqrt(dart.notNull(this.dx) * dart.notNull(this.dx) + dart.notNull(this.dy) * dart.notNull(this.dy));
    }
    get distanceSquared() {
      return dart.notNull(this.dx) * dart.notNull(this.dx) + dart.notNull(this.dy) * dart.notNull(this.dy);
    }
    get direction() {
      return math.atan2(this.dy, this.dx);
    }
    scale(scaleX, scaleY) {
      if (scaleX == null) dart.nullFailed(I[200], 51, 23, "scaleX");
      if (scaleY == null) dart.nullFailed(I[200], 51, 38, "scaleY");
      return new ui.Offset.new(dart.notNull(this.dx) * dart.notNull(scaleX), dart.notNull(this.dy) * dart.notNull(scaleY));
    }
    translate(translateX, translateY) {
      if (translateX == null) dart.nullFailed(I[200], 52, 27, "translateX");
      if (translateY == null) dart.nullFailed(I[200], 52, 46, "translateY");
      return new ui.Offset.new(dart.notNull(this.dx) + dart.notNull(translateX), dart.notNull(this.dy) + dart.notNull(translateY));
    }
    _negate() {
      return new ui.Offset.new(-dart.notNull(this.dx), -dart.notNull(this.dy));
    }
    ['-'](other) {
      if (other == null) dart.nullFailed(I[200], 54, 28, "other");
      return new ui.Offset.new(dart.notNull(this.dx) - dart.notNull(other.dx), dart.notNull(this.dy) - dart.notNull(other.dy));
    }
    ['+'](other) {
      if (other == null) dart.nullFailed(I[200], 55, 28, "other");
      return new ui.Offset.new(dart.notNull(this.dx) + dart.notNull(other.dx), dart.notNull(this.dy) + dart.notNull(other.dy));
    }
    ['*'](operand) {
      if (operand == null) dart.nullFailed(I[200], 56, 28, "operand");
      return new ui.Offset.new(dart.notNull(this.dx) * dart.notNull(operand), dart.notNull(this.dy) * dart.notNull(operand));
    }
    ['/'](operand) {
      if (operand == null) dart.nullFailed(I[200], 57, 28, "operand");
      return new ui.Offset.new(dart.notNull(this.dx) / dart.notNull(operand), dart.notNull(this.dy) / dart.notNull(operand));
    }
    ['~/'](operand) {
      if (operand == null) dart.nullFailed(I[200], 58, 29, "operand");
      return new ui.Offset.new((dart.notNull(this.dx) / dart.notNull(operand))[$truncate]()[$toDouble](), (dart.notNull(this.dy) / dart.notNull(operand))[$truncate]()[$toDouble]());
    }
    ['%'](operand) {
      if (operand == null) dart.nullFailed(I[200], 59, 28, "operand");
      return new ui.Offset.new(this.dx[$modulo](operand), this.dy[$modulo](operand));
    }
    ['&'](other) {
      if (other == null) dart.nullFailed(I[200], 60, 24, "other");
      return new ui.Rect.fromLTWH(this.dx, this.dy, other.width, other.height);
    }
    static lerp(a, b, t) {
      if (t == null) dart.nullFailed(I[200], 61, 52, "t");
      if (b == null) {
        if (a == null) {
          return null;
        } else {
          return a['*'](1.0 - dart.notNull(t));
        }
      } else {
        if (a == null) {
          return b['*'](t);
        } else {
          return new ui.Offset.new(ui._lerpDouble(a.dx, b.dx, t), ui._lerpDouble(a.dy, b.dy, t));
        }
      }
    }
    _equals(other) {
      if (other == null) return false;
      return T$8.Offset()[_is](other) && other.dx == this.dx && other.dy == this.dy;
    }
    get hashCode() {
      return core.Object.hash(this.dx, this.dy);
    }
    toString() {
      return "Offset(" + this.dx[$toStringAsFixed](1) + ", " + this.dy[$toStringAsFixed](1) + ")";
    }
  };
  (ui.Offset.new = function(dx, dy) {
    if (dx == null) dart.nullFailed(I[200], 39, 22, "dx");
    if (dy == null) dart.nullFailed(I[200], 39, 32, "dy");
    dart.global.Object.getPrototypeOf(ui.Offset).new.call(this, dx, dy);
    ;
  }).prototype = ui.Offset.prototype;
  dart.addRtiResources(ui.Offset, ["ui|Offset"]);
  dart.setMethodSignature(ui.Offset, () => dart.global.Object.setPrototypeOf({
    scale: T$8.doubleAnddoubleToOffset$1(),
    translate: T$8.doubleAnddoubleToOffset$1(),
    _negate: T$8.VoidToOffset(),
    '-': T$8.OffsetToOffset(),
    '+': T$8.OffsetToOffset(),
    '*': T$8.doubleToOffset(),
    '/': T$8.doubleToOffset(),
    '~/': T$8.doubleToOffset(),
    '%': T$8.doubleToOffset(),
    '&': T$8.SizeToRect()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Offset))));
  dart.setStaticMethodSignature(ui.Offset, () => ['fromDirection', 'lerp']);
  dart.setGetterSignature(ui.Offset, () => dart.global.Object.setPrototypeOf({
    dx: T$.double(),
    dy: T$.double(),
    distance: T$.double(),
    distanceSquared: T$.double(),
    direction: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.Offset))));
  dart.setLibraryUri(ui.Offset, I[198]);
  dart.setStaticFieldSignature(ui.Offset, () => ['zero', 'infinite']);
  dart.defineExtensionMethods(ui.Offset, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.Offset, ['hashCode']);
  dart.defineLazy(ui.Offset, {
    /*ui.Offset.zero*/get zero() {
      return C[520] || CT.C520;
    },
    /*ui.Offset.infinite*/get infinite() {
      return C[521] || CT.C521;
    }
  }, false);
  ui.Size = class Size extends ui.OffsetBase {
    static ['_#new#tearOff'](width, height) {
      if (width == null) dart.nullFailed(I[200], 92, 20, "width");
      if (height == null) dart.nullFailed(I[200], 92, 33, "height");
      return new ui.Size.new(width, height);
    }
    static ['_#copy#tearOff'](source) {
      if (source == null) dart.nullFailed(I[200], 94, 18, "source");
      return new ui.Size.copy(source);
    }
    static ['_#square#tearOff'](dimension) {
      if (dimension == null) dart.nullFailed(I[200], 95, 28, "dimension");
      return new ui.Size.square(dimension);
    }
    static ['_#fromWidth#tearOff'](width) {
      if (width == null) dart.nullFailed(I[200], 96, 31, "width");
      return new ui.Size.fromWidth(width);
    }
    static ['_#fromHeight#tearOff'](height) {
      if (height == null) dart.nullFailed(I[200], 97, 32, "height");
      return new ui.Size.fromHeight(height);
    }
    static ['_#fromRadius#tearOff'](radius) {
      if (radius == null) dart.nullFailed(I[200], 98, 32, "radius");
      return new ui.Size.fromRadius(radius);
    }
    get width() {
      return this[_dx];
    }
    get height() {
      return this[_dy];
    }
    get aspectRatio() {
      if (this.height !== 0.0) {
        return dart.notNull(this.width) / dart.notNull(this.height);
      }
      if (dart.notNull(this.width) > 0.0) {
        return 1 / 0;
      }
      if (dart.notNull(this.width) < 0.0) {
        return -1 / 0;
      }
      return 0.0;
    }
    get isEmpty() {
      return dart.notNull(this.width) <= 0.0 || dart.notNull(this.height) <= 0.0;
    }
    ['-'](other) {
      if (other == null) dart.nullFailed(I[200], 117, 36, "other");
      if (T$8.Size()[_is](other)) {
        return new ui.Offset.new(dart.notNull(this.width) - dart.notNull(other.width), dart.notNull(this.height) - dart.notNull(other.height));
      }
      if (T$8.Offset()[_is](other)) {
        return new ui.Size.new(dart.notNull(this.width) - dart.notNull(other.dx), dart.notNull(this.height) - dart.notNull(other.dy));
      }
      dart.throw(new core.ArgumentError.new(other));
    }
    ['+'](other) {
      if (other == null) dart.nullFailed(I[200], 127, 26, "other");
      return new ui.Size.new(dart.notNull(this.width) + dart.notNull(other.dx), dart.notNull(this.height) + dart.notNull(other.dy));
    }
    ['*'](operand) {
      if (operand == null) dart.nullFailed(I[200], 128, 26, "operand");
      return new ui.Size.new(dart.notNull(this.width) * dart.notNull(operand), dart.notNull(this.height) * dart.notNull(operand));
    }
    ['/'](operand) {
      if (operand == null) dart.nullFailed(I[200], 129, 26, "operand");
      return new ui.Size.new(dart.notNull(this.width) / dart.notNull(operand), dart.notNull(this.height) / dart.notNull(operand));
    }
    ['~/'](operand) {
      if (operand == null) dart.nullFailed(I[200], 130, 27, "operand");
      return new ui.Size.new((dart.notNull(this.width) / dart.notNull(operand))[$truncate]()[$toDouble](), (dart.notNull(this.height) / dart.notNull(operand))[$truncate]()[$toDouble]());
    }
    ['%'](operand) {
      if (operand == null) dart.nullFailed(I[200], 131, 26, "operand");
      return new ui.Size.new(this.width[$modulo](operand), this.height[$modulo](operand));
    }
    get shortestSide() {
      return math.min(T$.double(), this.width[$abs](), this.height[$abs]());
    }
    get longestSide() {
      return math.max(T$.double(), this.width[$abs](), this.height[$abs]());
    }
    topLeft(origin) {
      if (origin == null) dart.nullFailed(I[200], 137, 25, "origin");
      return origin;
    }
    topCenter(origin) {
      if (origin == null) dart.nullFailed(I[200], 138, 27, "origin");
      return new ui.Offset.new(dart.notNull(origin.dx) + dart.notNull(this.width) / 2.0, origin.dy);
    }
    topRight(origin) {
      if (origin == null) dart.nullFailed(I[200], 139, 26, "origin");
      return new ui.Offset.new(dart.notNull(origin.dx) + dart.notNull(this.width), origin.dy);
    }
    centerLeft(origin) {
      if (origin == null) dart.nullFailed(I[200], 140, 28, "origin");
      return new ui.Offset.new(origin.dx, dart.notNull(origin.dy) + dart.notNull(this.height) / 2.0);
    }
    center(origin) {
      if (origin == null) dart.nullFailed(I[200], 141, 24, "origin");
      return new ui.Offset.new(dart.notNull(origin.dx) + dart.notNull(this.width) / 2.0, dart.notNull(origin.dy) + dart.notNull(this.height) / 2.0);
    }
    centerRight(origin) {
      if (origin == null) dart.nullFailed(I[200], 142, 29, "origin");
      return new ui.Offset.new(dart.notNull(origin.dx) + dart.notNull(this.width), dart.notNull(origin.dy) + dart.notNull(this.height) / 2.0);
    }
    bottomLeft(origin) {
      if (origin == null) dart.nullFailed(I[200], 143, 28, "origin");
      return new ui.Offset.new(origin.dx, dart.notNull(origin.dy) + dart.notNull(this.height));
    }
    bottomCenter(origin) {
      if (origin == null) dart.nullFailed(I[200], 144, 30, "origin");
      return new ui.Offset.new(dart.notNull(origin.dx) + dart.notNull(this.width) / 2.0, dart.notNull(origin.dy) + dart.notNull(this.height));
    }
    bottomRight(origin) {
      if (origin == null) dart.nullFailed(I[200], 145, 29, "origin");
      return new ui.Offset.new(dart.notNull(origin.dx) + dart.notNull(this.width), dart.notNull(origin.dy) + dart.notNull(this.height));
    }
    contains(offset) {
      if (offset == null) dart.nullFailed(I[200], 146, 24, "offset");
      return dart.notNull(offset.dx) >= 0.0 && dart.notNull(offset.dx) < dart.notNull(this.width) && dart.notNull(offset.dy) >= 0.0 && dart.notNull(offset.dy) < dart.notNull(this.height);
    }
    get flipped() {
      return new ui.Size.new(this.height, this.width);
    }
    static lerp(a, b, t) {
      if (t == null) dart.nullFailed(I[200], 151, 46, "t");
      if (b == null) {
        if (a == null) {
          return null;
        } else {
          return a['*'](1.0 - dart.notNull(t));
        }
      } else {
        if (a == null) {
          return b['*'](t);
        } else {
          return new ui.Size.new(ui._lerpDouble(a.width, b.width, t), ui._lerpDouble(a.height, b.height, t));
        }
      }
    }
    _equals(other) {
      if (other == null) return false;
      return T$8.Size()[_is](other) && other[_dx] == this[_dx] && other[_dy] == this[_dy];
    }
    get hashCode() {
      return core.Object.hash(this[_dx], this[_dy]);
    }
    toString() {
      return "Size(" + this.width[$toStringAsFixed](1) + ", " + this.height[$toStringAsFixed](1) + ")";
    }
  };
  (ui.Size.new = function(width, height) {
    if (width == null) dart.nullFailed(I[200], 92, 20, "width");
    if (height == null) dart.nullFailed(I[200], 92, 33, "height");
    dart.global.Object.getPrototypeOf(ui.Size).new.call(this, width, height);
    ;
  }).prototype = ui.Size.prototype;
  (ui.Size.copy = function(source) {
    if (source == null) dart.nullFailed(I[200], 94, 18, "source");
    dart.global.Object.getPrototypeOf(ui.Size).new.call(this, source.width, source.height);
    ;
  }).prototype = ui.Size.prototype;
  (ui.Size.square = function(dimension) {
    if (dimension == null) dart.nullFailed(I[200], 95, 28, "dimension");
    dart.global.Object.getPrototypeOf(ui.Size).new.call(this, dimension, dimension);
    ;
  }).prototype = ui.Size.prototype;
  (ui.Size.fromWidth = function(width) {
    if (width == null) dart.nullFailed(I[200], 96, 31, "width");
    dart.global.Object.getPrototypeOf(ui.Size).new.call(this, width, 1 / 0);
    ;
  }).prototype = ui.Size.prototype;
  (ui.Size.fromHeight = function(height) {
    if (height == null) dart.nullFailed(I[200], 97, 32, "height");
    dart.global.Object.getPrototypeOf(ui.Size).new.call(this, 1 / 0, height);
    ;
  }).prototype = ui.Size.prototype;
  (ui.Size.fromRadius = function(radius) {
    if (radius == null) dart.nullFailed(I[200], 98, 32, "radius");
    dart.global.Object.getPrototypeOf(ui.Size).new.call(this, dart.notNull(radius) * 2.0, dart.notNull(radius) * 2.0);
    ;
  }).prototype = ui.Size.prototype;
  dart.addRtiResources(ui.Size, ["ui|Size"]);
  dart.setMethodSignature(ui.Size, () => dart.global.Object.setPrototypeOf({
    '-': T$8.OffsetBaseToOffsetBase(),
    '+': T$8.OffsetToSize(),
    '*': T$8.doubleToSize(),
    '/': T$8.doubleToSize(),
    '~/': T$8.doubleToSize(),
    '%': T$8.doubleToSize(),
    topLeft: T$8.OffsetToOffset(),
    topCenter: T$8.OffsetToOffset(),
    topRight: T$8.OffsetToOffset(),
    centerLeft: T$8.OffsetToOffset(),
    center: T$8.OffsetToOffset(),
    centerRight: T$8.OffsetToOffset(),
    bottomLeft: T$8.OffsetToOffset(),
    bottomCenter: T$8.OffsetToOffset(),
    bottomRight: T$8.OffsetToOffset(),
    contains: T$8.OffsetTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Size))));
  dart.setStaticMethodSignature(ui.Size, () => ['lerp']);
  dart.setGetterSignature(ui.Size, () => dart.global.Object.setPrototypeOf({
    width: T$.double(),
    height: T$.double(),
    aspectRatio: T$.double(),
    isEmpty: T$.bool(),
    shortestSide: T$.double(),
    longestSide: T$.double(),
    flipped: T$8.Size()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.Size))));
  dart.setLibraryUri(ui.Size, I[198]);
  dart.setStaticFieldSignature(ui.Size, () => ['zero', 'infinite']);
  dart.defineExtensionMethods(ui.Size, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.Size, ['hashCode']);
  dart.defineLazy(ui.Size, {
    /*ui.Size.zero*/get zero() {
      return C[522] || CT.C522;
    },
    /*ui.Size.infinite*/get infinite() {
      return C[523] || CT.C523;
    }
  }, false);
  var left$1 = dart.privateName(ui, "Rect.left");
  var top$1 = dart.privateName(ui, "Rect.top");
  var right$ = dart.privateName(ui, "Rect.right");
  var bottom$ = dart.privateName(ui, "Rect.bottom");
  ui.Rect = class Rect extends core.Object {
    get left() {
      return this[left$1];
    }
    set left(value) {
      super.left = value;
    }
    get top() {
      return this[top$1];
    }
    set top(value) {
      super.top = value;
    }
    get right() {
      return this[right$];
    }
    set right(value) {
      super.right = value;
    }
    get bottom() {
      return this[bottom$];
    }
    set bottom(value) {
      super.bottom = value;
    }
    static ['_#fromLTRB#tearOff'](left, top, right, bottom) {
      if (left == null) dart.nullFailed(I[200], 183, 28, "left");
      if (top == null) dart.nullFailed(I[200], 183, 39, "top");
      if (right == null) dart.nullFailed(I[200], 183, 49, "right");
      if (bottom == null) dart.nullFailed(I[200], 183, 61, "bottom");
      return new ui.Rect.fromLTRB(left, top, right, bottom);
    }
    static ['_#fromLTWH#tearOff'](left, top, width, height) {
      if (left == null) dart.nullFailed(I[200], 185, 30, "left");
      if (top == null) dart.nullFailed(I[200], 185, 43, "top");
      if (width == null) dart.nullFailed(I[200], 185, 55, "width");
      if (height == null) dart.nullFailed(I[200], 185, 69, "height");
      return new ui.Rect.fromLTWH(left, top, width, height);
    }
    static ['_#fromCircle#tearOff'](opts) {
      let center = opts && 'center' in opts ? opts.center : null;
      if (center == null) dart.nullFailed(I[200], 188, 37, "center");
      let radius = opts && 'radius' in opts ? opts.radius : null;
      if (radius == null) dart.nullFailed(I[200], 188, 61, "radius");
      return new ui.Rect.fromCircle({center: center, radius: radius});
    }
    static ['_#fromCenter#tearOff'](opts) {
      let center = opts && 'center' in opts ? opts.center : null;
      if (center == null) dart.nullFailed(I[200], 195, 37, "center");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[200], 195, 61, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[200], 195, 84, "height");
      return new ui.Rect.fromCenter({center: center, width: width, height: height});
    }
    static ['_#fromPoints#tearOff'](a, b) {
      if (a == null) dart.nullFailed(I[200], 203, 26, "a");
      if (b == null) dart.nullFailed(I[200], 203, 36, "b");
      return new ui.Rect.fromPoints(a, b);
    }
    get width() {
      return dart.notNull(this.right) - dart.notNull(this.left);
    }
    get height() {
      return dart.notNull(this.bottom) - dart.notNull(this.top);
    }
    get size() {
      return new ui.Size.new(this.width, this.height);
    }
    get hasNaN() {
      return this.left[$isNaN] || this.top[$isNaN] || this.right[$isNaN] || this.bottom[$isNaN];
    }
    get isInfinite() {
      return dart.notNull(this.left) >= 1 / 0 || dart.notNull(this.top) >= 1 / 0 || dart.notNull(this.right) >= 1 / 0 || dart.notNull(this.bottom) >= 1 / 0;
    }
    get isFinite() {
      return this.left[$isFinite] && this.top[$isFinite] && this.right[$isFinite] && this.bottom[$isFinite];
    }
    get isEmpty() {
      return dart.notNull(this.left) >= dart.notNull(this.right) || dart.notNull(this.top) >= dart.notNull(this.bottom);
    }
    shift(offset) {
      if (offset == null) dart.nullFailed(I[200], 233, 21, "offset");
      return new ui.Rect.fromLTRB(dart.notNull(this.left) + dart.notNull(offset.dx), dart.notNull(this.top) + dart.notNull(offset.dy), dart.notNull(this.right) + dart.notNull(offset.dx), dart.notNull(this.bottom) + dart.notNull(offset.dy));
    }
    translate(translateX, translateY) {
      if (translateX == null) dart.nullFailed(I[200], 237, 25, "translateX");
      if (translateY == null) dart.nullFailed(I[200], 237, 44, "translateY");
      return new ui.Rect.fromLTRB(dart.notNull(this.left) + dart.notNull(translateX), dart.notNull(this.top) + dart.notNull(translateY), dart.notNull(this.right) + dart.notNull(translateX), dart.notNull(this.bottom) + dart.notNull(translateY));
    }
    inflate(delta) {
      if (delta == null) dart.nullFailed(I[200], 241, 23, "delta");
      return new ui.Rect.fromLTRB(dart.notNull(this.left) - dart.notNull(delta), dart.notNull(this.top) - dart.notNull(delta), dart.notNull(this.right) + dart.notNull(delta), dart.notNull(this.bottom) + dart.notNull(delta));
    }
    deflate(delta) {
      if (delta == null) dart.nullFailed(I[200], 245, 23, "delta");
      return this.inflate(-dart.notNull(delta));
    }
    intersect(other) {
      if (other == null) dart.nullFailed(I[200], 246, 23, "other");
      return new ui.Rect.fromLTRB(math.max(T$.double(), this.left, other.left), math.max(T$.double(), this.top, other.top), math.min(T$.double(), this.right, other.right), math.min(T$.double(), this.bottom, other.bottom));
    }
    expandToInclude(other) {
      if (other == null) dart.nullFailed(I[200], 255, 29, "other");
      return new ui.Rect.fromLTRB(math.min(T$.double(), this.left, other.left), math.min(T$.double(), this.top, other.top), math.max(T$.double(), this.right, other.right), math.max(T$.double(), this.bottom, other.bottom));
    }
    overlaps(other) {
      if (other == null) dart.nullFailed(I[200], 264, 22, "other");
      if (dart.notNull(this.right) <= dart.notNull(other.left) || dart.notNull(other.right) <= dart.notNull(this.left)) {
        return false;
      }
      if (dart.notNull(this.bottom) <= dart.notNull(other.top) || dart.notNull(other.bottom) <= dart.notNull(this.top)) {
        return false;
      }
      return true;
    }
    get shortestSide() {
      return math.min(T$.double(), this.width[$abs](), this.height[$abs]());
    }
    get longestSide() {
      return math.max(T$.double(), this.width[$abs](), this.height[$abs]());
    }
    get topLeft() {
      return new ui.Offset.new(this.left, this.top);
    }
    get topCenter() {
      return new ui.Offset.new(dart.notNull(this.left) + dart.notNull(this.width) / 2.0, this.top);
    }
    get topRight() {
      return new ui.Offset.new(this.right, this.top);
    }
    get centerLeft() {
      return new ui.Offset.new(this.left, dart.notNull(this.top) + dart.notNull(this.height) / 2.0);
    }
    get center() {
      return new ui.Offset.new(dart.notNull(this.left) + dart.notNull(this.width) / 2.0, dart.notNull(this.top) + dart.notNull(this.height) / 2.0);
    }
    get centerRight() {
      return new ui.Offset.new(this.right, dart.notNull(this.top) + dart.notNull(this.height) / 2.0);
    }
    get bottomLeft() {
      return new ui.Offset.new(this.left, this.bottom);
    }
    get bottomCenter() {
      return new ui.Offset.new(dart.notNull(this.left) + dart.notNull(this.width) / 2.0, this.bottom);
    }
    get bottomRight() {
      return new ui.Offset.new(this.right, this.bottom);
    }
    contains(offset) {
      if (offset == null) dart.nullFailed(I[200], 285, 24, "offset");
      return dart.notNull(offset.dx) >= dart.notNull(this.left) && dart.notNull(offset.dx) < dart.notNull(this.right) && dart.notNull(offset.dy) >= dart.notNull(this.top) && dart.notNull(offset.dy) < dart.notNull(this.bottom);
    }
    static lerp(a, b, t) {
      if (t == null) dart.nullFailed(I[200], 289, 46, "t");
      if (b == null) {
        if (a == null) {
          return null;
        } else {
          let k = 1.0 - dart.notNull(t);
          return new ui.Rect.fromLTRB(dart.notNull(a.left) * k, dart.notNull(a.top) * k, dart.notNull(a.right) * k, dart.notNull(a.bottom) * k);
        }
      } else {
        if (a == null) {
          return new ui.Rect.fromLTRB(dart.notNull(b.left) * dart.notNull(t), dart.notNull(b.top) * dart.notNull(t), dart.notNull(b.right) * dart.notNull(t), dart.notNull(b.bottom) * dart.notNull(t));
        } else {
          return new ui.Rect.fromLTRB(ui._lerpDouble(a.left, b.left, t), ui._lerpDouble(a.top, b.top, t), ui._lerpDouble(a.right, b.right, t), ui._lerpDouble(a.bottom, b.bottom, t));
        }
      }
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$8.Rect()[_is](other) && other.left == this.left && other.top == this.top && other.right == this.right && other.bottom == this.bottom;
    }
    get hashCode() {
      return core.Object.hash(this.left, this.top, this.right, this.bottom);
    }
    toString() {
      return "Rect.fromLTRB(" + this.left[$toStringAsFixed](1) + ", " + this.top[$toStringAsFixed](1) + ", " + this.right[$toStringAsFixed](1) + ", " + this.bottom[$toStringAsFixed](1) + ")";
    }
  };
  (ui.Rect.fromLTRB = function(left, top, right, bottom) {
    if (left == null) dart.nullFailed(I[200], 183, 28, "left");
    if (top == null) dart.nullFailed(I[200], 183, 39, "top");
    if (right == null) dart.nullFailed(I[200], 183, 49, "right");
    if (bottom == null) dart.nullFailed(I[200], 183, 61, "bottom");
    this[left$1] = left;
    this[top$1] = top;
    this[right$] = right;
    this[bottom$] = bottom;
    ;
  }).prototype = ui.Rect.prototype;
  (ui.Rect.fromLTWH = function(left, top, width, height) {
    if (left == null) dart.nullFailed(I[200], 185, 30, "left");
    if (top == null) dart.nullFailed(I[200], 185, 43, "top");
    if (width == null) dart.nullFailed(I[200], 185, 55, "width");
    if (height == null) dart.nullFailed(I[200], 185, 69, "height");
    ui.Rect.fromLTRB.call(this, left, top, dart.notNull(left) + dart.notNull(width), dart.notNull(top) + dart.notNull(height));
  }).prototype = ui.Rect.prototype;
  (ui.Rect.fromCircle = function(opts) {
    let center = opts && 'center' in opts ? opts.center : null;
    if (center == null) dart.nullFailed(I[200], 188, 37, "center");
    let radius = opts && 'radius' in opts ? opts.radius : null;
    if (radius == null) dart.nullFailed(I[200], 188, 61, "radius");
    ui.Rect.fromCenter.call(this, {center: center, width: dart.notNull(radius) * 2, height: dart.notNull(radius) * 2});
  }).prototype = ui.Rect.prototype;
  (ui.Rect.fromCenter = function(opts) {
    let center = opts && 'center' in opts ? opts.center : null;
    if (center == null) dart.nullFailed(I[200], 195, 37, "center");
    let width = opts && 'width' in opts ? opts.width : null;
    if (width == null) dart.nullFailed(I[200], 195, 61, "width");
    let height = opts && 'height' in opts ? opts.height : null;
    if (height == null) dart.nullFailed(I[200], 195, 84, "height");
    ui.Rect.fromLTRB.call(this, dart.notNull(center.dx) - dart.notNull(width) / 2, dart.notNull(center.dy) - dart.notNull(height) / 2, dart.notNull(center.dx) + dart.notNull(width) / 2, dart.notNull(center.dy) + dart.notNull(height) / 2);
  }).prototype = ui.Rect.prototype;
  (ui.Rect.fromPoints = function(a, b) {
    if (a == null) dart.nullFailed(I[200], 203, 26, "a");
    if (b == null) dart.nullFailed(I[200], 203, 36, "b");
    ui.Rect.fromLTRB.call(this, math.min(T$.double(), a.dx, b.dx), math.min(T$.double(), a.dy, b.dy), math.max(T$.double(), a.dx, b.dx), math.max(T$.double(), a.dy, b.dy));
  }).prototype = ui.Rect.prototype;
  dart.addRtiResources(ui.Rect, ["ui|Rect"]);
  dart.setMethodSignature(ui.Rect, () => dart.global.Object.setPrototypeOf({
    shift: T$8.OffsetToRect(),
    translate: T$8.doubleAnddoubleToRect(),
    inflate: T$8.doubleToRect(),
    deflate: T$8.doubleToRect(),
    intersect: T$8.RectToRect(),
    expandToInclude: T$8.RectToRect(),
    overlaps: T$8.RectTobool(),
    contains: T$8.OffsetTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Rect))));
  dart.setStaticMethodSignature(ui.Rect, () => ['lerp']);
  dart.setGetterSignature(ui.Rect, () => dart.global.Object.setPrototypeOf({
    width: T$.double(),
    height: T$.double(),
    size: T$8.Size(),
    hasNaN: T$.bool(),
    isInfinite: T$.bool(),
    isFinite: T$.bool(),
    isEmpty: T$.bool(),
    shortestSide: T$.double(),
    longestSide: T$.double(),
    topLeft: T$8.Offset(),
    topCenter: T$8.Offset(),
    topRight: T$8.Offset(),
    centerLeft: T$8.Offset(),
    center: T$8.Offset(),
    centerRight: T$8.Offset(),
    bottomLeft: T$8.Offset(),
    bottomCenter: T$8.Offset(),
    bottomRight: T$8.Offset()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.Rect))));
  dart.setLibraryUri(ui.Rect, I[198]);
  dart.setFieldSignature(ui.Rect, () => dart.global.Object.setPrototypeOf({
    left: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    top: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    right: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    bottom: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.Rect))));
  dart.setStaticFieldSignature(ui.Rect, () => ['zero', '_giantScalar', 'largest']);
  dart.defineExtensionMethods(ui.Rect, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.Rect, ['hashCode']);
  dart.defineLazy(ui.Rect, {
    /*ui.Rect.zero*/get zero() {
      return C[524] || CT.C524;
    },
    /*ui.Rect._giantScalar*/get _giantScalar() {
      return 1000000000;
    },
    /*ui.Rect.largest*/get largest() {
      return C[525] || CT.C525;
    }
  }, false);
  var x$3 = dart.privateName(ui, "Radius.x");
  var y$3 = dart.privateName(ui, "Radius.y");
  ui.Radius = class Radius extends core.Object {
    get x() {
      return this[x$3];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$3];
    }
    set y(value) {
      super.y = value;
    }
    static ['_#circular#tearOff'](radius) {
      if (radius == null) dart.nullFailed(I[200], 334, 32, "radius");
      return new ui.Radius.circular(radius);
    }
    static ['_#elliptical#tearOff'](x, y) {
      if (x == null) dart.nullFailed(I[200], 335, 32, "x");
      if (y == null) dart.nullFailed(I[200], 335, 40, "y");
      return new ui.Radius.elliptical(x, y);
    }
    clamp(opts) {
      let minimum = opts && 'minimum' in opts ? opts.minimum : null;
      let maximum = opts && 'maximum' in opts ? opts.maximum : null;
      minimum == null ? minimum = C[526] || CT.C526 : null;
      maximum == null ? maximum = C[527] || CT.C527 : null;
      return new ui.Radius.elliptical(ui.clampDouble(this.x, minimum.x, maximum.x), ui.clampDouble(this.y, minimum.y, maximum.y));
    }
    clampValues(opts) {
      let t$36407, t$36407$, t$36407$0, t$36407$1;
      let minimumX = opts && 'minimumX' in opts ? opts.minimumX : null;
      let minimumY = opts && 'minimumY' in opts ? opts.minimumY : null;
      let maximumX = opts && 'maximumX' in opts ? opts.maximumX : null;
      let maximumY = opts && 'maximumY' in opts ? opts.maximumY : null;
      return new ui.Radius.elliptical(ui.clampDouble(this.x, (t$36407 = minimumX, t$36407 == null ? -(1 / 0) : t$36407), (t$36407$ = maximumX, t$36407$ == null ? 1 / 0 : t$36407$)), ui.clampDouble(this.y, (t$36407$0 = minimumY, t$36407$0 == null ? -(1 / 0) : t$36407$0), (t$36407$1 = maximumY, t$36407$1 == null ? 1 / 0 : t$36407$1)));
    }
    _negate() {
      return new ui.Radius.elliptical(-dart.notNull(this.x), -dart.notNull(this.y));
    }
    ['-'](other) {
      if (other == null) dart.nullFailed(I[200], 359, 28, "other");
      return new ui.Radius.elliptical(dart.notNull(this.x) - dart.notNull(other.x), dart.notNull(this.y) - dart.notNull(other.y));
    }
    ['+'](other) {
      if (other == null) dart.nullFailed(I[200], 360, 28, "other");
      return new ui.Radius.elliptical(dart.notNull(this.x) + dart.notNull(other.x), dart.notNull(this.y) + dart.notNull(other.y));
    }
    ['*'](operand) {
      if (operand == null) dart.nullFailed(I[200], 361, 28, "operand");
      return new ui.Radius.elliptical(dart.notNull(this.x) * dart.notNull(operand), dart.notNull(this.y) * dart.notNull(operand));
    }
    ['/'](operand) {
      if (operand == null) dart.nullFailed(I[200], 362, 28, "operand");
      return new ui.Radius.elliptical(dart.notNull(this.x) / dart.notNull(operand), dart.notNull(this.y) / dart.notNull(operand));
    }
    ['~/'](operand) {
      if (operand == null) dart.nullFailed(I[200], 363, 29, "operand");
      return new ui.Radius.elliptical((dart.notNull(this.x) / dart.notNull(operand))[$truncate]()[$toDouble](), (dart.notNull(this.y) / dart.notNull(operand))[$truncate]()[$toDouble]());
    }
    ['%'](operand) {
      if (operand == null) dart.nullFailed(I[200], 364, 28, "operand");
      return new ui.Radius.elliptical(this.x[$modulo](operand), this.y[$modulo](operand));
    }
    static lerp(a, b, t) {
      if (t == null) dart.nullFailed(I[200], 365, 52, "t");
      if (b == null) {
        if (a == null) {
          return null;
        } else {
          let k = 1.0 - dart.notNull(t);
          return new ui.Radius.elliptical(dart.notNull(a.x) * k, dart.notNull(a.y) * k);
        }
      } else {
        if (a == null) {
          return new ui.Radius.elliptical(dart.notNull(b.x) * dart.notNull(t), dart.notNull(b.y) * dart.notNull(t));
        } else {
          return new ui.Radius.elliptical(ui._lerpDouble(a.x, b.x, t), ui._lerpDouble(a.y, b.y, t));
        }
      }
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$8.Radius()[_is](other) && other.x == this.x && other.y == this.y;
    }
    get hashCode() {
      return core.Object.hash(this.x, this.y);
    }
    toString() {
      return this.x == this.y ? "Radius.circular(" + this.x[$toStringAsFixed](1) + ")" : "Radius.elliptical(" + this.x[$toStringAsFixed](1) + ", " + this.y[$toStringAsFixed](1) + ")";
    }
  };
  (ui.Radius.circular = function(radius) {
    if (radius == null) dart.nullFailed(I[200], 334, 32, "radius");
    ui.Radius.elliptical.call(this, radius, radius);
  }).prototype = ui.Radius.prototype;
  (ui.Radius.elliptical = function(x, y) {
    if (x == null) dart.nullFailed(I[200], 335, 32, "x");
    if (y == null) dart.nullFailed(I[200], 335, 40, "y");
    this[x$3] = x;
    this[y$3] = y;
    ;
  }).prototype = ui.Radius.prototype;
  dart.addRtiResources(ui.Radius, ["ui|Radius"]);
  dart.setMethodSignature(ui.Radius, () => dart.global.Object.setPrototypeOf({
    clamp: T$8.__ToRadius(),
    clampValues: T$8.__ToRadius$1(),
    _negate: T$8.VoidToRadius(),
    '-': T$8.RadiusToRadius(),
    '+': T$8.RadiusToRadius(),
    '*': T$8.doubleToRadius(),
    '/': T$8.doubleToRadius(),
    '~/': T$8.doubleToRadius(),
    '%': T$8.doubleToRadius()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Radius))));
  dart.setStaticMethodSignature(ui.Radius, () => ['lerp']);
  dart.setLibraryUri(ui.Radius, I[198]);
  dart.setFieldSignature(ui.Radius, () => dart.global.Object.setPrototypeOf({
    x: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.Radius))));
  dart.setStaticFieldSignature(ui.Radius, () => ['zero']);
  dart.defineExtensionMethods(ui.Radius, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.Radius, ['hashCode']);
  dart.defineLazy(ui.Radius, {
    /*ui.Radius.zero*/get zero() {
      return C[528] || CT.C528;
    }
  }, false);
  var left$2 = dart.privateName(ui, "RRect.left");
  var top$2 = dart.privateName(ui, "RRect.top");
  var right$0 = dart.privateName(ui, "RRect.right");
  var bottom$0 = dart.privateName(ui, "RRect.bottom");
  var tlRadiusX$ = dart.privateName(ui, "RRect.tlRadiusX");
  var tlRadiusY$ = dart.privateName(ui, "RRect.tlRadiusY");
  var trRadiusX$ = dart.privateName(ui, "RRect.trRadiusX");
  var trRadiusY$ = dart.privateName(ui, "RRect.trRadiusY");
  var brRadiusX$ = dart.privateName(ui, "RRect.brRadiusX");
  var brRadiusY$ = dart.privateName(ui, "RRect.brRadiusY");
  var blRadiusX$ = dart.privateName(ui, "RRect.blRadiusX");
  var blRadiusY$ = dart.privateName(ui, "RRect.blRadiusY");
  var webOnlyUniformRadii = dart.privateName(ui, "RRect.webOnlyUniformRadii");
  var _getMin = dart.privateName(ui, "_getMin");
  ui.RRect = class RRect extends core.Object {
    get left() {
      return this[left$2];
    }
    set left(value) {
      super.left = value;
    }
    get top() {
      return this[top$2];
    }
    set top(value) {
      super.top = value;
    }
    get right() {
      return this[right$0];
    }
    set right(value) {
      super.right = value;
    }
    get bottom() {
      return this[bottom$0];
    }
    set bottom(value) {
      super.bottom = value;
    }
    get tlRadiusX() {
      return this[tlRadiusX$];
    }
    set tlRadiusX(value) {
      super.tlRadiusX = value;
    }
    get tlRadiusY() {
      return this[tlRadiusY$];
    }
    set tlRadiusY(value) {
      super.tlRadiusY = value;
    }
    get trRadiusX() {
      return this[trRadiusX$];
    }
    set trRadiusX(value) {
      super.trRadiusX = value;
    }
    get trRadiusY() {
      return this[trRadiusY$];
    }
    set trRadiusY(value) {
      super.trRadiusY = value;
    }
    get brRadiusX() {
      return this[brRadiusX$];
    }
    set brRadiusX(value) {
      super.brRadiusX = value;
    }
    get brRadiusY() {
      return this[brRadiusY$];
    }
    set brRadiusY(value) {
      super.brRadiusY = value;
    }
    get blRadiusX() {
      return this[blRadiusX$];
    }
    set blRadiusX(value) {
      super.blRadiusX = value;
    }
    get blRadiusY() {
      return this[blRadiusY$];
    }
    set blRadiusY(value) {
      super.blRadiusY = value;
    }
    get webOnlyUniformRadii() {
      return this[webOnlyUniformRadii];
    }
    set webOnlyUniformRadii(value) {
      super.webOnlyUniformRadii = value;
    }
    static ['_#fromLTRBXY#tearOff'](left, top, right, bottom, radiusX, radiusY) {
      if (left == null) dart.nullFailed(I[200], 412, 12, "left");
      if (top == null) dart.nullFailed(I[200], 413, 12, "top");
      if (right == null) dart.nullFailed(I[200], 414, 12, "right");
      if (bottom == null) dart.nullFailed(I[200], 415, 12, "bottom");
      if (radiusX == null) dart.nullFailed(I[200], 416, 12, "radiusX");
      if (radiusY == null) dart.nullFailed(I[200], 417, 12, "radiusY");
      return new ui.RRect.fromLTRBXY(left, top, right, bottom, radiusX, radiusY);
    }
    static ['_#fromLTRBR#tearOff'](left, top, right, bottom, radius) {
      if (left == null) dart.nullFailed(I[200], 435, 12, "left");
      if (top == null) dart.nullFailed(I[200], 436, 12, "top");
      if (right == null) dart.nullFailed(I[200], 437, 12, "right");
      if (bottom == null) dart.nullFailed(I[200], 438, 12, "bottom");
      if (radius == null) dart.nullFailed(I[200], 439, 12, "radius");
      return new ui.RRect.fromLTRBR(left, top, right, bottom, radius);
    }
    static ['_#fromRectXY#tearOff'](rect, radiusX, radiusY) {
      if (rect == null) dart.nullFailed(I[200], 456, 25, "rect");
      if (radiusX == null) dart.nullFailed(I[200], 456, 38, "radiusX");
      if (radiusY == null) dart.nullFailed(I[200], 456, 54, "radiusY");
      return new ui.RRect.fromRectXY(rect, radiusX, radiusY);
    }
    static ['_#fromRectAndRadius#tearOff'](rect, radius) {
      if (rect == null) dart.nullFailed(I[200], 473, 32, "rect");
      if (radius == null) dart.nullFailed(I[200], 473, 45, "radius");
      return new ui.RRect.fromRectAndRadius(rect, radius);
    }
    static ['_#fromLTRBAndCorners#tearOff'](left, top, right, bottom, opts) {
      if (left == null) dart.nullFailed(I[200], 491, 12, "left");
      if (top == null) dart.nullFailed(I[200], 492, 12, "top");
      if (right == null) dart.nullFailed(I[200], 493, 12, "right");
      if (bottom == null) dart.nullFailed(I[200], 494, 12, "bottom");
      let topLeft = opts && 'topLeft' in opts ? opts.topLeft : C[528] || CT.C528;
      if (topLeft == null) dart.nullFailed(I[200], 495, 12, "topLeft");
      let topRight = opts && 'topRight' in opts ? opts.topRight : C[528] || CT.C528;
      if (topRight == null) dart.nullFailed(I[200], 496, 12, "topRight");
      let bottomRight = opts && 'bottomRight' in opts ? opts.bottomRight : C[528] || CT.C528;
      if (bottomRight == null) dart.nullFailed(I[200], 497, 12, "bottomRight");
      let bottomLeft = opts && 'bottomLeft' in opts ? opts.bottomLeft : C[528] || CT.C528;
      if (bottomLeft == null) dart.nullFailed(I[200], 498, 12, "bottomLeft");
      return new ui.RRect.fromLTRBAndCorners(left, top, right, bottom, {topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft});
    }
    static ['_#fromRectAndCorners#tearOff'](rect, opts) {
      if (rect == null) dart.nullFailed(I[200], 522, 10, "rect");
      let topLeft = opts && 'topLeft' in opts ? opts.topLeft : C[528] || CT.C528;
      if (topLeft == null) dart.nullFailed(I[200], 523, 12, "topLeft");
      let topRight = opts && 'topRight' in opts ? opts.topRight : C[528] || CT.C528;
      if (topRight == null) dart.nullFailed(I[200], 524, 12, "topRight");
      let bottomRight = opts && 'bottomRight' in opts ? opts.bottomRight : C[528] || CT.C528;
      if (bottomRight == null) dart.nullFailed(I[200], 525, 12, "bottomRight");
      let bottomLeft = opts && 'bottomLeft' in opts ? opts.bottomLeft : C[528] || CT.C528;
      if (bottomLeft == null) dart.nullFailed(I[200], 526, 12, "bottomLeft");
      return new ui.RRect.fromRectAndCorners(rect, {topLeft: topLeft, topRight: topRight, bottomRight: bottomRight, bottomLeft: bottomLeft});
    }
    static ['_#_raw#tearOff'](opts) {
      let left = opts && 'left' in opts ? opts.left : 0;
      if (left == null) dart.nullFailed(I[200], 550, 10, "left");
      let top = opts && 'top' in opts ? opts.top : 0;
      if (top == null) dart.nullFailed(I[200], 551, 10, "top");
      let right = opts && 'right' in opts ? opts.right : 0;
      if (right == null) dart.nullFailed(I[200], 552, 10, "right");
      let bottom = opts && 'bottom' in opts ? opts.bottom : 0;
      if (bottom == null) dart.nullFailed(I[200], 553, 10, "bottom");
      let tlRadiusX = opts && 'tlRadiusX' in opts ? opts.tlRadiusX : 0;
      if (tlRadiusX == null) dart.nullFailed(I[200], 554, 10, "tlRadiusX");
      let tlRadiusY = opts && 'tlRadiusY' in opts ? opts.tlRadiusY : 0;
      if (tlRadiusY == null) dart.nullFailed(I[200], 555, 10, "tlRadiusY");
      let trRadiusX = opts && 'trRadiusX' in opts ? opts.trRadiusX : 0;
      if (trRadiusX == null) dart.nullFailed(I[200], 556, 10, "trRadiusX");
      let trRadiusY = opts && 'trRadiusY' in opts ? opts.trRadiusY : 0;
      if (trRadiusY == null) dart.nullFailed(I[200], 557, 10, "trRadiusY");
      let brRadiusX = opts && 'brRadiusX' in opts ? opts.brRadiusX : 0;
      if (brRadiusX == null) dart.nullFailed(I[200], 558, 10, "brRadiusX");
      let brRadiusY = opts && 'brRadiusY' in opts ? opts.brRadiusY : 0;
      if (brRadiusY == null) dart.nullFailed(I[200], 559, 10, "brRadiusY");
      let blRadiusX = opts && 'blRadiusX' in opts ? opts.blRadiusX : 0;
      if (blRadiusX == null) dart.nullFailed(I[200], 560, 10, "blRadiusX");
      let blRadiusY = opts && 'blRadiusY' in opts ? opts.blRadiusY : 0;
      if (blRadiusY == null) dart.nullFailed(I[200], 561, 10, "blRadiusY");
      let uniformRadii = opts && 'uniformRadii' in opts ? opts.uniformRadii : false;
      if (uniformRadii == null) dart.nullFailed(I[200], 562, 10, "uniformRadii");
      return new ui.RRect._raw({left: left, top: top, right: right, bottom: bottom, tlRadiusX: tlRadiusX, tlRadiusY: tlRadiusY, trRadiusX: trRadiusX, trRadiusY: trRadiusY, brRadiusX: brRadiusX, brRadiusY: brRadiusY, blRadiusX: blRadiusX, blRadiusY: blRadiusY, uniformRadii: uniformRadii});
    }
    get tlRadius() {
      return new ui.Radius.elliptical(this.tlRadiusX, this.tlRadiusY);
    }
    get trRadius() {
      return new ui.Radius.elliptical(this.trRadiusX, this.trRadiusY);
    }
    get brRadius() {
      return new ui.Radius.elliptical(this.brRadiusX, this.brRadiusY);
    }
    get blRadius() {
      return new ui.Radius.elliptical(this.blRadiusX, this.blRadiusY);
    }
    shift(offset) {
      if (offset == null) dart.nullFailed(I[200], 593, 22, "offset");
      return new ui.RRect._raw({left: dart.notNull(this.left) + dart.notNull(offset.dx), top: dart.notNull(this.top) + dart.notNull(offset.dy), right: dart.notNull(this.right) + dart.notNull(offset.dx), bottom: dart.notNull(this.bottom) + dart.notNull(offset.dy), tlRadiusX: this.tlRadiusX, tlRadiusY: this.tlRadiusY, trRadiusX: this.trRadiusX, trRadiusY: this.trRadiusY, blRadiusX: this.blRadiusX, blRadiusY: this.blRadiusY, brRadiusX: this.brRadiusX, brRadiusY: this.brRadiusY});
    }
    inflate(delta) {
      if (delta == null) dart.nullFailed(I[200], 610, 24, "delta");
      return new ui.RRect._raw({left: dart.notNull(this.left) - dart.notNull(delta), top: dart.notNull(this.top) - dart.notNull(delta), right: dart.notNull(this.right) + dart.notNull(delta), bottom: dart.notNull(this.bottom) + dart.notNull(delta), tlRadiusX: math.max(T$.double(), 0.0, dart.notNull(this.tlRadiusX) + dart.notNull(delta)), tlRadiusY: math.max(T$.double(), 0.0, dart.notNull(this.tlRadiusY) + dart.notNull(delta)), trRadiusX: math.max(T$.double(), 0.0, dart.notNull(this.trRadiusX) + dart.notNull(delta)), trRadiusY: math.max(T$.double(), 0.0, dart.notNull(this.trRadiusY) + dart.notNull(delta)), blRadiusX: math.max(T$.double(), 0.0, dart.notNull(this.blRadiusX) + dart.notNull(delta)), blRadiusY: math.max(T$.double(), 0.0, dart.notNull(this.blRadiusY) + dart.notNull(delta)), brRadiusX: math.max(T$.double(), 0.0, dart.notNull(this.brRadiusX) + dart.notNull(delta)), brRadiusY: math.max(T$.double(), 0.0, dart.notNull(this.brRadiusY) + dart.notNull(delta))});
    }
    deflate(delta) {
      if (delta == null) dart.nullFailed(I[200], 627, 24, "delta");
      return this.inflate(-dart.notNull(delta));
    }
    get width() {
      return dart.notNull(this.right) - dart.notNull(this.left);
    }
    get height() {
      return dart.notNull(this.bottom) - dart.notNull(this.top);
    }
    get outerRect() {
      return new ui.Rect.fromLTRB(this.left, this.top, this.right, this.bottom);
    }
    get safeInnerRect() {
      let leftRadius = math.max(T$.double(), this.blRadiusX, this.tlRadiusX);
      let topRadius = math.max(T$.double(), this.tlRadiusY, this.trRadiusY);
      let rightRadius = math.max(T$.double(), this.trRadiusX, this.brRadiusX);
      let bottomRadius = math.max(T$.double(), this.brRadiusY, this.blRadiusY);
      return new ui.Rect.fromLTRB(dart.notNull(this.left) + leftRadius * 0.29289321881, dart.notNull(this.top) + topRadius * 0.29289321881, dart.notNull(this.right) - rightRadius * 0.29289321881, dart.notNull(this.bottom) - bottomRadius * 0.29289321881);
    }
    get middleRect() {
      let leftRadius = math.max(T$.double(), this.blRadiusX, this.tlRadiusX);
      let topRadius = math.max(T$.double(), this.tlRadiusY, this.trRadiusY);
      let rightRadius = math.max(T$.double(), this.trRadiusX, this.brRadiusX);
      let bottomRadius = math.max(T$.double(), this.brRadiusY, this.blRadiusY);
      return new ui.Rect.fromLTRB(dart.notNull(this.left) + leftRadius, dart.notNull(this.top) + topRadius, dart.notNull(this.right) - rightRadius, dart.notNull(this.bottom) - bottomRadius);
    }
    get wideMiddleRect() {
      let topRadius = math.max(T$.double(), this.tlRadiusY, this.trRadiusY);
      let bottomRadius = math.max(T$.double(), this.brRadiusY, this.blRadiusY);
      return new ui.Rect.fromLTRB(this.left, dart.notNull(this.top) + topRadius, this.right, dart.notNull(this.bottom) - bottomRadius);
    }
    get tallMiddleRect() {
      let leftRadius = math.max(T$.double(), this.blRadiusX, this.tlRadiusX);
      let rightRadius = math.max(T$.double(), this.trRadiusX, this.brRadiusX);
      return new ui.Rect.fromLTRB(dart.notNull(this.left) + leftRadius, this.top, dart.notNull(this.right) - rightRadius, this.bottom);
    }
    get isEmpty() {
      return dart.notNull(this.left) >= dart.notNull(this.right) || dart.notNull(this.top) >= dart.notNull(this.bottom);
    }
    get isFinite() {
      return this.left[$isFinite] && this.top[$isFinite] && this.right[$isFinite] && this.bottom[$isFinite];
    }
    get isRect() {
      return (this.tlRadiusX === 0.0 || this.tlRadiusY === 0.0) && (this.trRadiusX === 0.0 || this.trRadiusY === 0.0) && (this.blRadiusX === 0.0 || this.blRadiusY === 0.0) && (this.brRadiusX === 0.0 || this.brRadiusY === 0.0);
    }
    get isStadium() {
      return dart.equals(this.tlRadius, this.trRadius) && dart.equals(this.trRadius, this.brRadius) && dart.equals(this.brRadius, this.blRadius) && (dart.notNull(this.width) <= 2.0 * dart.notNull(this.tlRadiusX) || dart.notNull(this.height) <= 2.0 * dart.notNull(this.tlRadiusY));
    }
    get isEllipse() {
      return dart.equals(this.tlRadius, this.trRadius) && dart.equals(this.trRadius, this.brRadius) && dart.equals(this.brRadius, this.blRadius) && dart.notNull(this.width) <= 2.0 * dart.notNull(this.tlRadiusX) && dart.notNull(this.height) <= 2.0 * dart.notNull(this.tlRadiusY);
    }
    get isCircle() {
      return this.width == this.height && dart.test(this.isEllipse);
    }
    get shortestSide() {
      return math.min(T$.double(), this.width[$abs](), this.height[$abs]());
    }
    get longestSide() {
      return math.max(T$.double(), this.width[$abs](), this.height[$abs]());
    }
    get hasNaN() {
      return this.left[$isNaN] || this.top[$isNaN] || this.right[$isNaN] || this.bottom[$isNaN] || this.trRadiusX[$isNaN] || this.trRadiusY[$isNaN] || this.tlRadiusX[$isNaN] || this.tlRadiusY[$isNaN] || this.brRadiusX[$isNaN] || this.brRadiusY[$isNaN] || this.blRadiusX[$isNaN] || this.blRadiusY[$isNaN];
    }
    get center() {
      return new ui.Offset.new(dart.notNull(this.left) + dart.notNull(this.width) / 2.0, dart.notNull(this.top) + dart.notNull(this.height) / 2.0);
    }
    [_getMin](min, radius1, radius2, limit) {
      if (min == null) dart.nullFailed(I[200], 716, 25, "min");
      if (radius1 == null) dart.nullFailed(I[200], 716, 37, "radius1");
      if (radius2 == null) dart.nullFailed(I[200], 716, 53, "radius2");
      if (limit == null) dart.nullFailed(I[200], 716, 69, "limit");
      let sum = dart.notNull(radius1) + dart.notNull(radius2);
      if (sum > dart.notNull(limit) && sum !== 0.0) {
        return math.min(T$.double(), min, dart.notNull(limit) / sum);
      }
      return min;
    }
    scaleRadii() {
      let scale = 1.0;
      let absWidth = this.width[$abs]();
      let absHeight = this.height[$abs]();
      scale = this[_getMin](scale, this.blRadiusY, this.tlRadiusY, absHeight);
      scale = this[_getMin](scale, this.tlRadiusX, this.trRadiusX, absWidth);
      scale = this[_getMin](scale, this.trRadiusY, this.brRadiusY, absHeight);
      scale = this[_getMin](scale, this.brRadiusX, this.blRadiusX, absWidth);
      if (dart.notNull(scale) < 1.0) {
        return new ui.RRect._raw({top: this.top, left: this.left, right: this.right, bottom: this.bottom, tlRadiusX: dart.notNull(this.tlRadiusX) * dart.notNull(scale), tlRadiusY: dart.notNull(this.tlRadiusY) * dart.notNull(scale), trRadiusX: dart.notNull(this.trRadiusX) * dart.notNull(scale), trRadiusY: dart.notNull(this.trRadiusY) * dart.notNull(scale), blRadiusX: dart.notNull(this.blRadiusX) * dart.notNull(scale), blRadiusY: dart.notNull(this.blRadiusY) * dart.notNull(scale), brRadiusX: dart.notNull(this.brRadiusX) * dart.notNull(scale), brRadiusY: dart.notNull(this.brRadiusY) * dart.notNull(scale)});
      }
      return new ui.RRect._raw({top: this.top, left: this.left, right: this.right, bottom: this.bottom, tlRadiusX: this.tlRadiusX, tlRadiusY: this.tlRadiusY, trRadiusX: this.trRadiusX, trRadiusY: this.trRadiusY, blRadiusX: this.blRadiusX, blRadiusY: this.blRadiusY, brRadiusX: this.brRadiusX, brRadiusY: this.brRadiusY});
    }
    contains(point) {
      if (point == null) dart.nullFailed(I[200], 766, 24, "point");
      if (dart.notNull(point.dx) < dart.notNull(this.left) || dart.notNull(point.dx) >= dart.notNull(this.right) || dart.notNull(point.dy) < dart.notNull(this.top) || dart.notNull(point.dy) >= dart.notNull(this.bottom)) {
        return false;
      }
      let scaled = this.scaleRadii();
      let x = null;
      let y = null;
      let radiusX = null;
      let radiusY = null;
      if (dart.notNull(point.dx) < dart.notNull(this.left) + dart.notNull(scaled.tlRadiusX) && dart.notNull(point.dy) < dart.notNull(this.top) + dart.notNull(scaled.tlRadiusY)) {
        x = dart.notNull(point.dx) - dart.notNull(this.left) - dart.notNull(scaled.tlRadiusX);
        y = dart.notNull(point.dy) - dart.notNull(this.top) - dart.notNull(scaled.tlRadiusY);
        radiusX = scaled.tlRadiusX;
        radiusY = scaled.tlRadiusY;
      } else if (dart.notNull(point.dx) > dart.notNull(this.right) - dart.notNull(scaled.trRadiusX) && dart.notNull(point.dy) < dart.notNull(this.top) + dart.notNull(scaled.trRadiusY)) {
        x = dart.notNull(point.dx) - dart.notNull(this.right) + dart.notNull(scaled.trRadiusX);
        y = dart.notNull(point.dy) - dart.notNull(this.top) - dart.notNull(scaled.trRadiusY);
        radiusX = scaled.trRadiusX;
        radiusY = scaled.trRadiusY;
      } else if (dart.notNull(point.dx) > dart.notNull(this.right) - dart.notNull(scaled.brRadiusX) && dart.notNull(point.dy) > dart.notNull(this.bottom) - dart.notNull(scaled.brRadiusY)) {
        x = dart.notNull(point.dx) - dart.notNull(this.right) + dart.notNull(scaled.brRadiusX);
        y = dart.notNull(point.dy) - dart.notNull(this.bottom) + dart.notNull(scaled.brRadiusY);
        radiusX = scaled.brRadiusX;
        radiusY = scaled.brRadiusY;
      } else if (dart.notNull(point.dx) < dart.notNull(this.left) + dart.notNull(scaled.blRadiusX) && dart.notNull(point.dy) > dart.notNull(this.bottom) - dart.notNull(scaled.blRadiusY)) {
        x = dart.notNull(point.dx) - dart.notNull(this.left) - dart.notNull(scaled.blRadiusX);
        y = dart.notNull(point.dy) - dart.notNull(this.bottom) + dart.notNull(scaled.blRadiusY);
        radiusX = scaled.blRadiusX;
        radiusY = scaled.blRadiusY;
      } else {
        return true;
      }
      x = dart.notNull(x) / dart.notNull(radiusX);
      y = dart.notNull(y) / dart.notNull(radiusY);
      if (dart.notNull(x) * dart.notNull(x) + dart.notNull(y) * dart.notNull(y) > 1.0) {
        return false;
      }
      return true;
    }
    static lerp(a, b, t) {
      if (t == null) dart.nullFailed(I[200], 816, 49, "t");
      if (b == null) {
        if (a == null) {
          return null;
        } else {
          let k = 1.0 - dart.notNull(t);
          return new ui.RRect._raw({left: dart.notNull(a.left) * k, top: dart.notNull(a.top) * k, right: dart.notNull(a.right) * k, bottom: dart.notNull(a.bottom) * k, tlRadiusX: math.max(T$.double(), 0.0, dart.notNull(a.tlRadiusX) * k), tlRadiusY: math.max(T$.double(), 0.0, dart.notNull(a.tlRadiusY) * k), trRadiusX: math.max(T$.double(), 0.0, dart.notNull(a.trRadiusX) * k), trRadiusY: math.max(T$.double(), 0.0, dart.notNull(a.trRadiusY) * k), brRadiusX: math.max(T$.double(), 0.0, dart.notNull(a.brRadiusX) * k), brRadiusY: math.max(T$.double(), 0.0, dart.notNull(a.brRadiusY) * k), blRadiusX: math.max(T$.double(), 0.0, dart.notNull(a.blRadiusX) * k), blRadiusY: math.max(T$.double(), 0.0, dart.notNull(a.blRadiusY) * k)});
        }
      } else {
        if (a == null) {
          return new ui.RRect._raw({left: dart.notNull(b.left) * dart.notNull(t), top: dart.notNull(b.top) * dart.notNull(t), right: dart.notNull(b.right) * dart.notNull(t), bottom: dart.notNull(b.bottom) * dart.notNull(t), tlRadiusX: math.max(T$.double(), 0.0, dart.notNull(b.tlRadiusX) * dart.notNull(t)), tlRadiusY: math.max(T$.double(), 0.0, dart.notNull(b.tlRadiusY) * dart.notNull(t)), trRadiusX: math.max(T$.double(), 0.0, dart.notNull(b.trRadiusX) * dart.notNull(t)), trRadiusY: math.max(T$.double(), 0.0, dart.notNull(b.trRadiusY) * dart.notNull(t)), brRadiusX: math.max(T$.double(), 0.0, dart.notNull(b.brRadiusX) * dart.notNull(t)), brRadiusY: math.max(T$.double(), 0.0, dart.notNull(b.brRadiusY) * dart.notNull(t)), blRadiusX: math.max(T$.double(), 0.0, dart.notNull(b.blRadiusX) * dart.notNull(t)), blRadiusY: math.max(T$.double(), 0.0, dart.notNull(b.blRadiusY) * dart.notNull(t))});
        } else {
          return new ui.RRect._raw({left: ui._lerpDouble(a.left, b.left, t), top: ui._lerpDouble(a.top, b.top, t), right: ui._lerpDouble(a.right, b.right, t), bottom: ui._lerpDouble(a.bottom, b.bottom, t), tlRadiusX: math.max(T$.double(), 0.0, ui._lerpDouble(a.tlRadiusX, b.tlRadiusX, t)), tlRadiusY: math.max(T$.double(), 0.0, ui._lerpDouble(a.tlRadiusY, b.tlRadiusY, t)), trRadiusX: math.max(T$.double(), 0.0, ui._lerpDouble(a.trRadiusX, b.trRadiusX, t)), trRadiusY: math.max(T$.double(), 0.0, ui._lerpDouble(a.trRadiusY, b.trRadiusY, t)), brRadiusX: math.max(T$.double(), 0.0, ui._lerpDouble(a.brRadiusX, b.brRadiusX, t)), brRadiusY: math.max(T$.double(), 0.0, ui._lerpDouble(a.brRadiusY, b.brRadiusY, t)), blRadiusX: math.max(T$.double(), 0.0, ui._lerpDouble(a.blRadiusX, b.blRadiusX, t)), blRadiusY: math.max(T$.double(), 0.0, ui._lerpDouble(a.blRadiusY, b.blRadiusY, t))});
        }
      }
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$8.RRect()[_is](other) && other.left == this.left && other.top == this.top && other.right == this.right && other.bottom == this.bottom && other.tlRadiusX == this.tlRadiusX && other.tlRadiusY == this.tlRadiusY && other.trRadiusX == this.trRadiusX && other.trRadiusY == this.trRadiusY && other.blRadiusX == this.blRadiusX && other.blRadiusY == this.blRadiusY && other.brRadiusX == this.brRadiusX && other.brRadiusY == this.brRadiusY;
    }
    get hashCode() {
      return core.Object.hash(this.left, this.top, this.right, this.bottom, this.tlRadiusX, this.tlRadiusY, this.trRadiusX, this.trRadiusY, this.blRadiusX, this.blRadiusY, this.brRadiusX, this.brRadiusY);
    }
    toString() {
      let rect = this.left[$toStringAsFixed](1) + ", " + this.top[$toStringAsFixed](1) + ", " + this.right[$toStringAsFixed](1) + ", " + this.bottom[$toStringAsFixed](1);
      if (dart.equals(this.tlRadius, this.trRadius) && dart.equals(this.trRadius, this.brRadius) && dart.equals(this.brRadius, this.blRadius)) {
        if (this.tlRadius.x == this.tlRadius.y) {
          return "RRect.fromLTRBR(" + rect + ", " + this.tlRadius.x[$toStringAsFixed](1) + ")";
        }
        return "RRect.fromLTRBXY(" + rect + ", " + this.tlRadius.x[$toStringAsFixed](1) + ", " + this.tlRadius.y[$toStringAsFixed](1) + ")";
      }
      return "RRect.fromLTRBAndCorners(" + rect + ", " + "topLeft: " + dart.str(this.tlRadius) + ", " + "topRight: " + dart.str(this.trRadius) + ", " + "bottomRight: " + dart.str(this.brRadius) + ", " + "bottomLeft: " + dart.str(this.blRadius) + ")";
    }
  };
  (ui.RRect.fromLTRBXY = function(left, top, right, bottom, radiusX, radiusY) {
    if (left == null) dart.nullFailed(I[200], 412, 12, "left");
    if (top == null) dart.nullFailed(I[200], 413, 12, "top");
    if (right == null) dart.nullFailed(I[200], 414, 12, "right");
    if (bottom == null) dart.nullFailed(I[200], 415, 12, "bottom");
    if (radiusX == null) dart.nullFailed(I[200], 416, 12, "radiusX");
    if (radiusY == null) dart.nullFailed(I[200], 417, 12, "radiusY");
    ui.RRect._raw.call(this, {top: top, left: left, right: right, bottom: bottom, tlRadiusX: radiusX, tlRadiusY: radiusY, trRadiusX: radiusX, trRadiusY: radiusY, blRadiusX: radiusX, blRadiusY: radiusY, brRadiusX: radiusX, brRadiusY: radiusY, uniformRadii: radiusX == radiusY});
  }).prototype = ui.RRect.prototype;
  (ui.RRect.fromLTRBR = function(left, top, right, bottom, radius) {
    if (left == null) dart.nullFailed(I[200], 435, 12, "left");
    if (top == null) dart.nullFailed(I[200], 436, 12, "top");
    if (right == null) dart.nullFailed(I[200], 437, 12, "right");
    if (bottom == null) dart.nullFailed(I[200], 438, 12, "bottom");
    if (radius == null) dart.nullFailed(I[200], 439, 12, "radius");
    ui.RRect._raw.call(this, {top: top, left: left, right: right, bottom: bottom, tlRadiusX: radius.x, tlRadiusY: radius.y, trRadiusX: radius.x, trRadiusY: radius.y, blRadiusX: radius.x, blRadiusY: radius.y, brRadiusX: radius.x, brRadiusY: radius.y, uniformRadii: radius.x == radius.y});
  }).prototype = ui.RRect.prototype;
  (ui.RRect.fromRectXY = function(rect, radiusX, radiusY) {
    if (rect == null) dart.nullFailed(I[200], 456, 25, "rect");
    if (radiusX == null) dart.nullFailed(I[200], 456, 38, "radiusX");
    if (radiusY == null) dart.nullFailed(I[200], 456, 54, "radiusY");
    ui.RRect._raw.call(this, {top: rect.top, left: rect.left, right: rect.right, bottom: rect.bottom, tlRadiusX: radiusX, tlRadiusY: radiusY, trRadiusX: radiusX, trRadiusY: radiusY, blRadiusX: radiusX, blRadiusY: radiusY, brRadiusX: radiusX, brRadiusY: radiusY, uniformRadii: radiusX == radiusY});
  }).prototype = ui.RRect.prototype;
  (ui.RRect.fromRectAndRadius = function(rect, radius) {
    if (rect == null) dart.nullFailed(I[200], 473, 32, "rect");
    if (radius == null) dart.nullFailed(I[200], 473, 45, "radius");
    ui.RRect._raw.call(this, {top: rect.top, left: rect.left, right: rect.right, bottom: rect.bottom, tlRadiusX: radius.x, tlRadiusY: radius.y, trRadiusX: radius.x, trRadiusY: radius.y, blRadiusX: radius.x, blRadiusY: radius.y, brRadiusX: radius.x, brRadiusY: radius.y, uniformRadii: radius.x == radius.y});
  }).prototype = ui.RRect.prototype;
  (ui.RRect.fromLTRBAndCorners = function(left, top, right, bottom, opts) {
    if (left == null) dart.nullFailed(I[200], 491, 12, "left");
    if (top == null) dart.nullFailed(I[200], 492, 12, "top");
    if (right == null) dart.nullFailed(I[200], 493, 12, "right");
    if (bottom == null) dart.nullFailed(I[200], 494, 12, "bottom");
    let topLeft = opts && 'topLeft' in opts ? opts.topLeft : C[528] || CT.C528;
    if (topLeft == null) dart.nullFailed(I[200], 495, 12, "topLeft");
    let topRight = opts && 'topRight' in opts ? opts.topRight : C[528] || CT.C528;
    if (topRight == null) dart.nullFailed(I[200], 496, 12, "topRight");
    let bottomRight = opts && 'bottomRight' in opts ? opts.bottomRight : C[528] || CT.C528;
    if (bottomRight == null) dart.nullFailed(I[200], 497, 12, "bottomRight");
    let bottomLeft = opts && 'bottomLeft' in opts ? opts.bottomLeft : C[528] || CT.C528;
    if (bottomLeft == null) dart.nullFailed(I[200], 498, 12, "bottomLeft");
    ui.RRect._raw.call(this, {top: top, left: left, right: right, bottom: bottom, tlRadiusX: topLeft.x, tlRadiusY: topLeft.y, trRadiusX: topRight.x, trRadiusY: topRight.y, blRadiusX: bottomLeft.x, blRadiusY: bottomLeft.y, brRadiusX: bottomRight.x, brRadiusY: bottomRight.y, uniformRadii: topLeft.x == topLeft.y && topLeft.x == topRight.x && topLeft.x == topRight.y && topLeft.x == bottomLeft.x && topLeft.x == bottomLeft.y && topLeft.x == bottomRight.x && topLeft.x == bottomRight.y});
  }).prototype = ui.RRect.prototype;
  (ui.RRect.fromRectAndCorners = function(rect, opts) {
    if (rect == null) dart.nullFailed(I[200], 522, 10, "rect");
    let topLeft = opts && 'topLeft' in opts ? opts.topLeft : C[528] || CT.C528;
    if (topLeft == null) dart.nullFailed(I[200], 523, 12, "topLeft");
    let topRight = opts && 'topRight' in opts ? opts.topRight : C[528] || CT.C528;
    if (topRight == null) dart.nullFailed(I[200], 524, 12, "topRight");
    let bottomRight = opts && 'bottomRight' in opts ? opts.bottomRight : C[528] || CT.C528;
    if (bottomRight == null) dart.nullFailed(I[200], 525, 12, "bottomRight");
    let bottomLeft = opts && 'bottomLeft' in opts ? opts.bottomLeft : C[528] || CT.C528;
    if (bottomLeft == null) dart.nullFailed(I[200], 526, 12, "bottomLeft");
    ui.RRect._raw.call(this, {top: rect.top, left: rect.left, right: rect.right, bottom: rect.bottom, tlRadiusX: topLeft.x, tlRadiusY: topLeft.y, trRadiusX: topRight.x, trRadiusY: topRight.y, blRadiusX: bottomLeft.x, blRadiusY: bottomLeft.y, brRadiusX: bottomRight.x, brRadiusY: bottomRight.y, uniformRadii: topLeft.x == topLeft.y && topLeft.x == topRight.x && topLeft.x == topRight.y && topLeft.x == bottomLeft.x && topLeft.x == bottomLeft.y && topLeft.x == bottomRight.x && topLeft.x == bottomRight.y});
  }).prototype = ui.RRect.prototype;
  (ui.RRect._raw = function(opts) {
    let left = opts && 'left' in opts ? opts.left : 0;
    if (left == null) dart.nullFailed(I[200], 550, 10, "left");
    let top = opts && 'top' in opts ? opts.top : 0;
    if (top == null) dart.nullFailed(I[200], 551, 10, "top");
    let right = opts && 'right' in opts ? opts.right : 0;
    if (right == null) dart.nullFailed(I[200], 552, 10, "right");
    let bottom = opts && 'bottom' in opts ? opts.bottom : 0;
    if (bottom == null) dart.nullFailed(I[200], 553, 10, "bottom");
    let tlRadiusX = opts && 'tlRadiusX' in opts ? opts.tlRadiusX : 0;
    if (tlRadiusX == null) dart.nullFailed(I[200], 554, 10, "tlRadiusX");
    let tlRadiusY = opts && 'tlRadiusY' in opts ? opts.tlRadiusY : 0;
    if (tlRadiusY == null) dart.nullFailed(I[200], 555, 10, "tlRadiusY");
    let trRadiusX = opts && 'trRadiusX' in opts ? opts.trRadiusX : 0;
    if (trRadiusX == null) dart.nullFailed(I[200], 556, 10, "trRadiusX");
    let trRadiusY = opts && 'trRadiusY' in opts ? opts.trRadiusY : 0;
    if (trRadiusY == null) dart.nullFailed(I[200], 557, 10, "trRadiusY");
    let brRadiusX = opts && 'brRadiusX' in opts ? opts.brRadiusX : 0;
    if (brRadiusX == null) dart.nullFailed(I[200], 558, 10, "brRadiusX");
    let brRadiusY = opts && 'brRadiusY' in opts ? opts.brRadiusY : 0;
    if (brRadiusY == null) dart.nullFailed(I[200], 559, 10, "brRadiusY");
    let blRadiusX = opts && 'blRadiusX' in opts ? opts.blRadiusX : 0;
    if (blRadiusX == null) dart.nullFailed(I[200], 560, 10, "blRadiusX");
    let blRadiusY = opts && 'blRadiusY' in opts ? opts.blRadiusY : 0;
    if (blRadiusY == null) dart.nullFailed(I[200], 561, 10, "blRadiusY");
    let uniformRadii = opts && 'uniformRadii' in opts ? opts.uniformRadii : false;
    if (uniformRadii == null) dart.nullFailed(I[200], 562, 10, "uniformRadii");
    this[left$2] = left;
    this[top$2] = top;
    this[right$0] = right;
    this[bottom$0] = bottom;
    this[tlRadiusX$] = tlRadiusX;
    this[tlRadiusY$] = tlRadiusY;
    this[trRadiusX$] = trRadiusX;
    this[trRadiusY$] = trRadiusY;
    this[brRadiusX$] = brRadiusX;
    this[brRadiusY$] = brRadiusY;
    this[blRadiusX$] = blRadiusX;
    this[blRadiusY$] = blRadiusY;
    if (!(dart.notNull(tlRadiusX) >= 0)) dart.assertFailed(null, I[200], 563, 16, "tlRadiusX >= 0");
    if (!(dart.notNull(tlRadiusY) >= 0)) dart.assertFailed(null, I[200], 564, 16, "tlRadiusY >= 0");
    if (!(dart.notNull(trRadiusX) >= 0)) dart.assertFailed(null, I[200], 565, 16, "trRadiusX >= 0");
    if (!(dart.notNull(trRadiusY) >= 0)) dart.assertFailed(null, I[200], 566, 16, "trRadiusY >= 0");
    if (!(dart.notNull(brRadiusX) >= 0)) dart.assertFailed(null, I[200], 567, 16, "brRadiusX >= 0");
    if (!(dart.notNull(brRadiusY) >= 0)) dart.assertFailed(null, I[200], 568, 16, "brRadiusY >= 0");
    if (!(dart.notNull(blRadiusX) >= 0)) dart.assertFailed(null, I[200], 569, 16, "blRadiusX >= 0");
    if (!(dart.notNull(blRadiusY) >= 0)) dart.assertFailed(null, I[200], 570, 16, "blRadiusY >= 0");
    this[webOnlyUniformRadii] = uniformRadii;
    ;
  }).prototype = ui.RRect.prototype;
  dart.addRtiResources(ui.RRect, ["ui|RRect"]);
  dart.setMethodSignature(ui.RRect, () => dart.global.Object.setPrototypeOf({
    shift: T$8.OffsetToRRect(),
    inflate: T$8.doubleToRRect(),
    deflate: T$8.doubleToRRect(),
    [_getMin]: T$8.doubleAnddoubleAnddouble__Todouble(),
    scaleRadii: T$8.VoidToRRect(),
    contains: T$8.OffsetTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.RRect))));
  dart.setStaticMethodSignature(ui.RRect, () => ['lerp']);
  dart.setGetterSignature(ui.RRect, () => dart.global.Object.setPrototypeOf({
    tlRadius: T$8.Radius(),
    trRadius: T$8.Radius(),
    brRadius: T$8.Radius(),
    blRadius: T$8.Radius(),
    width: T$.double(),
    height: T$.double(),
    outerRect: T$8.Rect(),
    safeInnerRect: T$8.Rect(),
    middleRect: T$8.Rect(),
    wideMiddleRect: T$8.Rect(),
    tallMiddleRect: T$8.Rect(),
    isEmpty: T$.bool(),
    isFinite: T$.bool(),
    isRect: T$.bool(),
    isStadium: T$.bool(),
    isEllipse: T$.bool(),
    isCircle: T$.bool(),
    shortestSide: T$.double(),
    longestSide: T$.double(),
    hasNaN: T$.bool(),
    center: T$8.Offset()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.RRect))));
  dart.setLibraryUri(ui.RRect, I[198]);
  dart.setFieldSignature(ui.RRect, () => dart.global.Object.setPrototypeOf({
    left: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    top: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    right: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    bottom: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    tlRadiusX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    tlRadiusY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    trRadiusX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    trRadiusY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    brRadiusX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    brRadiusY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    blRadiusX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    blRadiusY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    webOnlyUniformRadii: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.RRect))));
  dart.setStaticFieldSignature(ui.RRect, () => ['zero']);
  dart.defineExtensionMethods(ui.RRect, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.RRect, ['hashCode']);
  dart.defineLazy(ui.RRect, {
    /*ui.RRect.zero*/get zero() {
      return C[529] || CT.C529;
    }
  }, false);
  var _value$4 = dart.privateName(ui, "_value");
  ui.RSTransform = class RSTransform extends core.Object {
    static ['_#new#tearOff'](scos, ssin, tx, ty) {
      if (scos == null) dart.nullFailed(I[200], 926, 22, "scos");
      if (ssin == null) dart.nullFailed(I[200], 926, 35, "ssin");
      if (tx == null) dart.nullFailed(I[200], 926, 48, "tx");
      if (ty == null) dart.nullFailed(I[200], 926, 59, "ty");
      return new ui.RSTransform.new(scos, ssin, tx, ty);
    }
    static fromComponents(opts) {
      let rotation = opts && 'rotation' in opts ? opts.rotation : null;
      if (rotation == null) dart.nullFailed(I[200], 934, 21, "rotation");
      let scale = opts && 'scale' in opts ? opts.scale : null;
      if (scale == null) dart.nullFailed(I[200], 935, 21, "scale");
      let anchorX = opts && 'anchorX' in opts ? opts.anchorX : null;
      if (anchorX == null) dart.nullFailed(I[200], 936, 21, "anchorX");
      let anchorY = opts && 'anchorY' in opts ? opts.anchorY : null;
      if (anchorY == null) dart.nullFailed(I[200], 937, 21, "anchorY");
      let translateX = opts && 'translateX' in opts ? opts.translateX : null;
      if (translateX == null) dart.nullFailed(I[200], 938, 21, "translateX");
      let translateY = opts && 'translateY' in opts ? opts.translateY : null;
      if (translateY == null) dart.nullFailed(I[200], 939, 21, "translateY");
      let scos = math.cos(rotation) * dart.notNull(scale);
      let ssin = math.sin(rotation) * dart.notNull(scale);
      let tx = dart.notNull(translateX) + -scos * dart.notNull(anchorX) + ssin * dart.notNull(anchorY);
      let ty = dart.notNull(translateY) + -ssin * dart.notNull(anchorX) - scos * dart.notNull(anchorY);
      return new ui.RSTransform.new(scos, ssin, tx, ty);
    }
    static ['_#fromComponents#tearOff'](opts) {
      let rotation = opts && 'rotation' in opts ? opts.rotation : null;
      if (rotation == null) dart.nullFailed(I[200], 934, 21, "rotation");
      let scale = opts && 'scale' in opts ? opts.scale : null;
      if (scale == null) dart.nullFailed(I[200], 935, 21, "scale");
      let anchorX = opts && 'anchorX' in opts ? opts.anchorX : null;
      if (anchorX == null) dart.nullFailed(I[200], 936, 21, "anchorX");
      let anchorY = opts && 'anchorY' in opts ? opts.anchorY : null;
      if (anchorY == null) dart.nullFailed(I[200], 937, 21, "anchorY");
      let translateX = opts && 'translateX' in opts ? opts.translateX : null;
      if (translateX == null) dart.nullFailed(I[200], 938, 21, "translateX");
      let translateY = opts && 'translateY' in opts ? opts.translateY : null;
      if (translateY == null) dart.nullFailed(I[200], 939, 21, "translateY");
      return ui.RSTransform.fromComponents({rotation: rotation, scale: scale, anchorX: anchorX, anchorY: anchorY, translateX: translateX, translateY: translateY});
    }
    get scos() {
      return this[_value$4][$_get](0);
    }
    get ssin() {
      return this[_value$4][$_get](1);
    }
    get tx() {
      return this[_value$4][$_get](2);
    }
    get ty() {
      return this[_value$4][$_get](3);
    }
  };
  (ui.RSTransform.new = function(scos, ssin, tx, ty) {
    let t$36407;
    if (scos == null) dart.nullFailed(I[200], 926, 22, "scos");
    if (ssin == null) dart.nullFailed(I[200], 926, 35, "ssin");
    if (tx == null) dart.nullFailed(I[200], 926, 48, "tx");
    if (ty == null) dart.nullFailed(I[200], 926, 59, "ty");
    this[_value$4] = _native_typed_data.NativeFloat32List.new(4);
    t$36407 = this[_value$4];
    (() => {
      t$36407[$_set](0, scos);
      t$36407[$_set](1, ssin);
      t$36407[$_set](2, tx);
      t$36407[$_set](3, ty);
      return t$36407;
    })();
  }).prototype = ui.RSTransform.prototype;
  dart.addRtiResources(ui.RSTransform, ["ui|RSTransform"]);
  dart.setStaticMethodSignature(ui.RSTransform, () => ['fromComponents']);
  dart.setGetterSignature(ui.RSTransform, () => dart.global.Object.setPrototypeOf({
    scos: T$.double(),
    ssin: T$.double(),
    tx: T$.double(),
    ty: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.RSTransform))));
  dart.setLibraryUri(ui.RSTransform, I[198]);
  dart.setFieldSignature(ui.RSTransform, () => dart.global.Object.setPrototypeOf({[_value$4]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.RSTransform))));
  ui._HashEnd = class _HashEnd extends core.Object {
    static ['_#new#tearOff']() {
      return new ui._HashEnd.new();
    }
  };
  (ui._HashEnd.new = function() {
    ;
  }).prototype = ui._HashEnd.prototype;
  dart.addRtiResources(ui._HashEnd, ["ui|_HashEnd"]);
  dart.setLibraryUri(ui._HashEnd, I[198]);
  ui._Jenkins = class _Jenkins extends core.Object {
    static combine(hash, o) {
      if (hash == null) dart.nullFailed(I[201], 15, 26, "hash");
      if (!!T$.Iterable()[_is](o)) dart.assertFailed(null, I[201], 16, 12, "o is! Iterable");
      hash = 536870911 & dart.notNull(hash) + dart.notNull(dart.hashCode(o));
      hash = 536870911 & dart.notNull(hash) + ((524287 & dart.notNull(hash)) << 10);
      return (dart.notNull(hash) ^ hash[$rightShift](6)) >>> 0;
    }
    static finish(hash) {
      if (hash == null) dart.nullFailed(I[201], 22, 25, "hash");
      hash = 536870911 & dart.notNull(hash) + ((67108863 & dart.notNull(hash)) << 3);
      hash = (dart.notNull(hash) ^ hash[$rightShift](11)) >>> 0;
      return 536870911 & dart.notNull(hash) + ((16383 & dart.notNull(hash)) << 15);
    }
    static ['_#new#tearOff']() {
      return new ui._Jenkins.new();
    }
  };
  (ui._Jenkins.new = function() {
    ;
  }).prototype = ui._Jenkins.prototype;
  dart.addRtiResources(ui._Jenkins, ["ui|_Jenkins"]);
  dart.setStaticMethodSignature(ui._Jenkins, () => ['combine', 'finish']);
  dart.setLibraryUri(ui._Jenkins, I[198]);
  ui.KeyEventType = class KeyEventType extends core._Enum {
    [_enumToString]() {
      return "KeyEventType." + dart.str(this[_name$]);
    }
    get label() {
      return (() => {
        let t$36409 = null;
        switch (this) {
          case C[530] || CT.C530:
            {
              t$36409 = "Key Down";
              break;
            }
          case C[531] || CT.C531:
            {
              t$36409 = "Key Up";
              break;
            }
          case C[532] || CT.C532:
            {
              t$36409 = "Key Repeat";
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36409;
      })();
    }
  };
  (ui.KeyEventType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[202], 9, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[202], 9, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.KeyEventType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.KeyEventType.prototype;
  dart.addRtiResources(ui.KeyEventType, ["ui|KeyEventType"]);
  dart.setMethodSignature(ui.KeyEventType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.KeyEventType))));
  dart.setGetterSignature(ui.KeyEventType, () => dart.global.Object.setPrototypeOf({label: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(ui.KeyEventType))));
  dart.setLibraryUri(ui.KeyEventType, I[198]);
  dart.setStaticFieldSignature(ui.KeyEventType, () => ['values', 'down', 'up', 'repeat']);
  dart.defineLazy(ui.KeyEventType, {
    /*ui.KeyEventType.values*/get values() {
      return C[533] || CT.C533;
    },
    /*ui.KeyEventType.down*/get down() {
      return C[530] || CT.C530;
    },
    /*ui.KeyEventType.up*/get up() {
      return C[531] || CT.C531;
    },
    /*ui.KeyEventType.repeat*/get repeat() {
      return C[532] || CT.C532;
    }
  }, false);
  ui.KeyEventDeviceType = class KeyEventDeviceType extends core._Enum {
    [_enumToString]() {
      return "KeyEventDeviceType." + dart.str(this[_name$]);
    }
    get label() {
      return (() => {
        let t$36412 = null;
        switch (this) {
          case C[534] || CT.C534:
            {
              t$36412 = "Keyboard";
              break;
            }
          case C[535] || CT.C535:
            {
              t$36412 = "Directional Pad";
              break;
            }
          case C[536] || CT.C536:
            {
              t$36412 = "Gamepad";
              break;
            }
          case C[537] || CT.C537:
            {
              t$36412 = "Joystick";
              break;
            }
          case C[538] || CT.C538:
            {
              t$36412 = "HDMI";
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36412;
      })();
    }
  };
  (ui.KeyEventDeviceType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[202], 32, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[202], 32, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.KeyEventDeviceType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.KeyEventDeviceType.prototype;
  dart.addRtiResources(ui.KeyEventDeviceType, ["ui|KeyEventDeviceType"]);
  dart.setMethodSignature(ui.KeyEventDeviceType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.KeyEventDeviceType))));
  dart.setGetterSignature(ui.KeyEventDeviceType, () => dart.global.Object.setPrototypeOf({label: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(ui.KeyEventDeviceType))));
  dart.setLibraryUri(ui.KeyEventDeviceType, I[198]);
  dart.setStaticFieldSignature(ui.KeyEventDeviceType, () => ['values', 'keyboard', 'directionalPad', 'gamepad', 'joystick', 'hdmi']);
  dart.defineLazy(ui.KeyEventDeviceType, {
    /*ui.KeyEventDeviceType.values*/get values() {
      return C[539] || CT.C539;
    },
    /*ui.KeyEventDeviceType.keyboard*/get keyboard() {
      return C[534] || CT.C534;
    },
    /*ui.KeyEventDeviceType.directionalPad*/get directionalPad() {
      return C[535] || CT.C535;
    },
    /*ui.KeyEventDeviceType.gamepad*/get gamepad() {
      return C[536] || CT.C536;
    },
    /*ui.KeyEventDeviceType.joystick*/get joystick() {
      return C[537] || CT.C537;
    },
    /*ui.KeyEventDeviceType.hdmi*/get hdmi() {
      return C[538] || CT.C538;
    }
  }, false);
  var timeStamp$ = dart.privateName(ui, "KeyData.timeStamp");
  var type$2 = dart.privateName(ui, "KeyData.type");
  var deviceType$ = dart.privateName(ui, "KeyData.deviceType");
  var physical$ = dart.privateName(ui, "KeyData.physical");
  var logical$ = dart.privateName(ui, "KeyData.logical");
  var character$ = dart.privateName(ui, "KeyData.character");
  var synthesized$ = dart.privateName(ui, "KeyData.synthesized");
  var _logicalToString = dart.privateName(ui, "_logicalToString");
  var _escapeCharacter = dart.privateName(ui, "_escapeCharacter");
  var _quotedCharCode = dart.privateName(ui, "_quotedCharCode");
  ui.KeyData = class KeyData extends core.Object {
    get timeStamp() {
      return this[timeStamp$];
    }
    set timeStamp(value) {
      super.timeStamp = value;
    }
    get type() {
      return this[type$2];
    }
    set type(value) {
      super.type = value;
    }
    get deviceType() {
      return this[deviceType$];
    }
    set deviceType(value) {
      super.deviceType = value;
    }
    get physical() {
      return this[physical$];
    }
    set physical(value) {
      super.physical = value;
    }
    get logical() {
      return this[logical$];
    }
    set logical(value) {
      super.logical = value;
    }
    get character() {
      return this[character$];
    }
    set character(value) {
      super.character = value;
    }
    get synthesized() {
      return this[synthesized$];
    }
    set synthesized(value) {
      super.synthesized = value;
    }
    static ['_#new#tearOff'](opts) {
      let timeStamp = opts && 'timeStamp' in opts ? opts.timeStamp : null;
      if (timeStamp == null) dart.nullFailed(I[202], 64, 19, "timeStamp");
      let type = opts && 'type' in opts ? opts.type : null;
      if (type == null) dart.nullFailed(I[202], 65, 19, "type");
      let physical = opts && 'physical' in opts ? opts.physical : null;
      if (physical == null) dart.nullFailed(I[202], 66, 19, "physical");
      let logical = opts && 'logical' in opts ? opts.logical : null;
      if (logical == null) dart.nullFailed(I[202], 67, 19, "logical");
      let character = opts && 'character' in opts ? opts.character : null;
      let synthesized = opts && 'synthesized' in opts ? opts.synthesized : null;
      if (synthesized == null) dart.nullFailed(I[202], 69, 19, "synthesized");
      let deviceType = opts && 'deviceType' in opts ? opts.deviceType : C[534] || CT.C534;
      if (deviceType == null) dart.nullFailed(I[202], 70, 10, "deviceType");
      return new ui.KeyData.new({timeStamp: timeStamp, type: type, physical: physical, logical: logical, character: character, synthesized: synthesized, deviceType: deviceType});
    }
    [_logicalToString]() {
      let result = "0x" + this.logical[$toRadixString](16);
      let planeNum = (dart.notNull(this.logical) / 4294967296)[$floor]();
      let planeDescription = dart.fn(() => {
        switch (planeNum) {
          case 0:
            {
              return " (Unicode)";
            }
          case 1:
            {
              return " (Unprintable)";
            }
          case 2:
            {
              return " (Flutter)";
            }
          case 17:
            {
              return " (Android)";
            }
          case 18:
            {
              return " (Fuchsia)";
            }
          case 19:
            {
              return " (iOS)";
            }
          case 20:
            {
              return " (macOS)";
            }
          case 21:
            {
              return " (GTK)";
            }
          case 22:
            {
              return " (Windows)";
            }
          case 23:
            {
              return " (Web)";
            }
          case 24:
            {
              return " (GLFW)";
            }
        }
        return "";
      }, T$.VoidToString())();
      return result + dart.str(planeDescription);
    }
    [_escapeCharacter]() {
      if (this.character == null) {
        return "<none>";
      }
      switch (dart.nullCheck(this.character)) {
        case "\n":
          {
            return "\"\\n\"";
          }
        case "\t":
          {
            return "\"\\t\"";
          }
        case "\r":
          {
            return "\"\\r\"";
          }
        case "\b":
          {
            return "\"\\b\"";
          }
        case "\f":
          {
            return "\"\\f\"";
          }
        default:
          {
            return "\"" + dart.str(this.character) + "\"";
          }
      }
    }
    [_quotedCharCode]() {
      if (this.character == null) {
        return "";
      }
      let hexChars = dart.nullCheck(this.character)[$codeUnits][$map](T$.String(), dart.fn(code => {
        if (code == null) dart.nullFailed(I[202], 191, 19, "code");
        return code[$toRadixString](16)[$padLeft](2, "0");
      }, T$.intToString()));
      return " (0x" + dart.str(hexChars[$join](" ")) + ")";
    }
    toString() {
      return "KeyData(" + dart.str(this.type.label) + ", " + "physical: 0x" + this.physical[$toRadixString](16) + ", " + "logical: " + dart.str(this[_logicalToString]()) + ", " + "character: " + dart.str(this[_escapeCharacter]()) + dart.str(this[_quotedCharCode]()) + (dart.test(this.synthesized) ? ", synthesized" : "") + ")";
    }
    toStringFull() {
      return dart.str(dart.runtimeType(this)) + "(" + "type: " + dart.str(this.type.label) + ", " + "deviceType: " + dart.str(this.deviceType.label) + ", " + "timeStamp: " + dart.str(this.timeStamp) + ", " + "physical: 0x" + this.physical[$toRadixString](16) + ", " + "logical: 0x" + this.logical[$toRadixString](16) + ", " + "character: " + dart.str(this[_escapeCharacter]()) + ", " + "synthesized: " + dart.str(this.synthesized) + ")";
    }
  };
  (ui.KeyData.new = function(opts) {
    let timeStamp = opts && 'timeStamp' in opts ? opts.timeStamp : null;
    if (timeStamp == null) dart.nullFailed(I[202], 64, 19, "timeStamp");
    let type = opts && 'type' in opts ? opts.type : null;
    if (type == null) dart.nullFailed(I[202], 65, 19, "type");
    let physical = opts && 'physical' in opts ? opts.physical : null;
    if (physical == null) dart.nullFailed(I[202], 66, 19, "physical");
    let logical = opts && 'logical' in opts ? opts.logical : null;
    if (logical == null) dart.nullFailed(I[202], 67, 19, "logical");
    let character = opts && 'character' in opts ? opts.character : null;
    let synthesized = opts && 'synthesized' in opts ? opts.synthesized : null;
    if (synthesized == null) dart.nullFailed(I[202], 69, 19, "synthesized");
    let deviceType = opts && 'deviceType' in opts ? opts.deviceType : C[534] || CT.C534;
    if (deviceType == null) dart.nullFailed(I[202], 70, 10, "deviceType");
    this[timeStamp$] = timeStamp;
    this[type$2] = type;
    this[physical$] = physical;
    this[logical$] = logical;
    this[character$] = character;
    this[synthesized$] = synthesized;
    this[deviceType$] = deviceType;
    ;
  }).prototype = ui.KeyData.prototype;
  dart.addRtiResources(ui.KeyData, ["ui|KeyData"]);
  dart.setMethodSignature(ui.KeyData, () => dart.global.Object.setPrototypeOf({
    [_logicalToString]: T$.VoidToString(),
    [_escapeCharacter]: T$8.VoidToStringN(),
    [_quotedCharCode]: T$8.VoidToStringN(),
    toStringFull: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.KeyData))));
  dart.setLibraryUri(ui.KeyData, I[198]);
  dart.setFieldSignature(ui.KeyData, () => dart.global.Object.setPrototypeOf({
    timeStamp: {type: T$8.Duration(), isConst: false, isFinal: true, libraryUri: I[11]},
    type: {type: T$8.KeyEventType(), isConst: false, isFinal: true, libraryUri: I[198]},
    deviceType: {type: T$8.KeyEventDeviceType(), isConst: false, isFinal: true, libraryUri: I[198]},
    physical: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    logical: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    character: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    synthesized: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.KeyData))));
  dart.defineExtensionMethods(ui.KeyData, ['toString']);
  ui.DartPluginRegistrant = class DartPluginRegistrant extends core.Object {
    static ensureInitialized() {
      dart.throw(new core.UnimplementedError.new("`ensureInitialized` is not implemented on the web."));
    }
    static ['_#new#tearOff']() {
      return new ui.DartPluginRegistrant.new();
    }
  };
  (ui.DartPluginRegistrant.new = function() {
    ;
  }).prototype = ui.DartPluginRegistrant.prototype;
  dart.addRtiResources(ui.DartPluginRegistrant, ["ui|DartPluginRegistrant"]);
  dart.setStaticMethodSignature(ui.DartPluginRegistrant, () => ['ensureInitialized']);
  dart.setLibraryUri(ui.DartPluginRegistrant, I[198]);
  var value$4 = dart.privateName(ui, "Color.value");
  ui.Color = class Color extends core.Object {
    get value() {
      return this[value$4];
    }
    set value(value) {
      super.value = value;
    }
    static ['_#new#tearOff'](value) {
      if (value == null) dart.nullFailed(I[203], 25, 19, "value");
      return new ui.Color.new(value);
    }
    static ['_#fromARGB#tearOff'](a, r, g, b) {
      if (a == null) dart.nullFailed(I[203], 26, 28, "a");
      if (r == null) dart.nullFailed(I[203], 26, 35, "r");
      if (g == null) dart.nullFailed(I[203], 26, 42, "g");
      if (b == null) dart.nullFailed(I[203], 26, 49, "b");
      return new ui.Color.fromARGB(a, r, g, b);
    }
    static ['_#fromRGBO#tearOff'](r, g, b, opacity) {
      if (r == null) dart.nullFailed(I[203], 32, 28, "r");
      if (g == null) dart.nullFailed(I[203], 32, 35, "g");
      if (b == null) dart.nullFailed(I[203], 32, 42, "b");
      if (opacity == null) dart.nullFailed(I[203], 32, 52, "opacity");
      return new ui.Color.fromRGBO(r, g, b, opacity);
    }
    get alpha() {
      return (4278190080 & dart.notNull(this.value)) >>> 24;
    }
    get opacity() {
      return dart.notNull(this.alpha) / 255;
    }
    get red() {
      return (16711680 & dart.notNull(this.value)) >> 16;
    }
    get green() {
      return (65280 & dart.notNull(this.value)) >> 8;
    }
    get blue() {
      return (255 & dart.notNull(this.value)) >> 0;
    }
    withAlpha(a) {
      if (a == null) dart.nullFailed(I[203], 44, 23, "a");
      return new ui.Color.fromARGB(a, this.red, this.green, this.blue);
    }
    withOpacity(opacity) {
      if (opacity == null) dart.nullFailed(I[203], 48, 28, "opacity");
      if (!(dart.notNull(opacity) >= 0.0 && dart.notNull(opacity) <= 1.0)) dart.assertFailed(null, I[203], 49, 12, "opacity >= 0.0 && opacity <= 1.0");
      return this.withAlpha((255.0 * dart.notNull(opacity))[$round]());
    }
    withRed(r) {
      if (r == null) dart.nullFailed(I[203], 53, 21, "r");
      return new ui.Color.fromARGB(this.alpha, r, this.green, this.blue);
    }
    withGreen(g) {
      if (g == null) dart.nullFailed(I[203], 57, 23, "g");
      return new ui.Color.fromARGB(this.alpha, this.red, g, this.blue);
    }
    withBlue(b) {
      if (b == null) dart.nullFailed(I[203], 61, 22, "b");
      return new ui.Color.fromARGB(this.alpha, this.red, this.green, b);
    }
    static _linearizeColorComponent(component) {
      if (component == null) dart.nullFailed(I[203], 66, 49, "component");
      if (dart.notNull(component) <= 0.03928) {
        return dart.notNull(component) / 12.92;
      }
      return math.pow((dart.notNull(component) + 0.055) / 1.055, 2.4);
    }
    computeLuminance() {
      let R = ui.Color._linearizeColorComponent(dart.notNull(this.red) / 255);
      let G = ui.Color._linearizeColorComponent(dart.notNull(this.green) / 255);
      let B = ui.Color._linearizeColorComponent(dart.notNull(this.blue) / 255);
      return 0.2126 * dart.notNull(R) + 0.7152 * dart.notNull(G) + 0.0722 * dart.notNull(B);
    }
    static lerp(a, b, t) {
      if (t == null) dart.nullFailed(I[203], 81, 49, "t");
      if (b == null) {
        if (a == null) {
          return null;
        } else {
          return ui._scaleAlpha(a, 1.0 - dart.notNull(t));
        }
      } else {
        if (a == null) {
          return ui._scaleAlpha(b, t);
        } else {
          return new ui.Color.fromARGB(_engine.clampInt(ui._lerpInt(a.alpha, b.alpha, t)[$toInt](), 0, 255), _engine.clampInt(ui._lerpInt(a.red, b.red, t)[$toInt](), 0, 255), _engine.clampInt(ui._lerpInt(a.green, b.green, t)[$toInt](), 0, 255), _engine.clampInt(ui._lerpInt(a.blue, b.blue, t)[$toInt](), 0, 255));
        }
      }
    }
    static alphaBlend(foreground, background) {
      if (foreground == null) dart.nullFailed(I[203], 102, 33, "foreground");
      if (background == null) dart.nullFailed(I[203], 102, 51, "background");
      let alpha = foreground.alpha;
      if (alpha === 0) {
        return background;
      }
      let invAlpha = 255 - dart.notNull(alpha);
      let backAlpha = background.alpha;
      if (backAlpha === 255) {
        return new ui.Color.fromARGB(255, ((dart.notNull(alpha) * dart.notNull(foreground.red) + invAlpha * dart.notNull(background.red)) / 255)[$truncate](), ((dart.notNull(alpha) * dart.notNull(foreground.green) + invAlpha * dart.notNull(background.green)) / 255)[$truncate](), ((dart.notNull(alpha) * dart.notNull(foreground.blue) + invAlpha * dart.notNull(background.blue)) / 255)[$truncate]());
      } else {
        backAlpha = (dart.notNull(backAlpha) * invAlpha / 255)[$truncate]();
        let outAlpha = dart.notNull(alpha) + dart.notNull(backAlpha);
        if (!(outAlpha !== 0)) dart.assertFailed(null, I[203], 122, 14, "outAlpha != 0x00");
        return new ui.Color.fromARGB(outAlpha, ((dart.notNull(foreground.red) * dart.notNull(alpha) + dart.notNull(background.red) * dart.notNull(backAlpha)) / outAlpha)[$truncate](), ((dart.notNull(foreground.green) * dart.notNull(alpha) + dart.notNull(background.green) * dart.notNull(backAlpha)) / outAlpha)[$truncate](), ((dart.notNull(foreground.blue) * dart.notNull(alpha) + dart.notNull(background.blue) * dart.notNull(backAlpha)) / outAlpha)[$truncate]());
      }
    }
    static getAlphaFromOpacity(opacity) {
      if (opacity == null) dart.nullFailed(I[203], 132, 41, "opacity");
      return (dart.notNull(ui.clampDouble(opacity, 0.0, 1.0)) * 255)[$round]();
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$8.Color()[_is](other) && other.value == this.value;
    }
    get hashCode() {
      return dart.hashCode(this.value);
    }
    toString() {
      return "Color(0x" + this.value[$toRadixString](16)[$padLeft](8, "0") + ")";
    }
  };
  (ui.Color.new = function(value) {
    if (value == null) dart.nullFailed(I[203], 25, 19, "value");
    this[value$4] = (dart.notNull(value) & 4294967295) >>> 0;
    ;
  }).prototype = ui.Color.prototype;
  (ui.Color.fromARGB = function(a, r, g, b) {
    if (a == null) dart.nullFailed(I[203], 26, 28, "a");
    if (r == null) dart.nullFailed(I[203], 26, 35, "r");
    if (g == null) dart.nullFailed(I[203], 26, 42, "g");
    if (b == null) dart.nullFailed(I[203], 26, 49, "b");
    this[value$4] = (((dart.notNull(a) & 255) << 24 | (dart.notNull(r) & 255) << 16 | (dart.notNull(g) & 255) << 8 | (dart.notNull(b) & 255) << 0) & 4294967295) >>> 0;
    ;
  }).prototype = ui.Color.prototype;
  (ui.Color.fromRGBO = function(r, g, b, opacity) {
    if (r == null) dart.nullFailed(I[203], 32, 28, "r");
    if (g == null) dart.nullFailed(I[203], 32, 35, "g");
    if (b == null) dart.nullFailed(I[203], 32, 42, "b");
    if (opacity == null) dart.nullFailed(I[203], 32, 52, "opacity");
    this[value$4] = ((((dart.notNull(opacity) * 255 / 1)[$truncate]() & 255) << 24 | (dart.notNull(r) & 255) << 16 | (dart.notNull(g) & 255) << 8 | (dart.notNull(b) & 255) << 0) & 4294967295) >>> 0;
    ;
  }).prototype = ui.Color.prototype;
  dart.addRtiResources(ui.Color, ["ui|Color"]);
  dart.setMethodSignature(ui.Color, () => dart.global.Object.setPrototypeOf({
    withAlpha: T$8.intToColor(),
    withOpacity: T$8.doubleToColor(),
    withRed: T$8.intToColor(),
    withGreen: T$8.intToColor(),
    withBlue: T$8.intToColor(),
    computeLuminance: T$.VoidTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Color))));
  dart.setStaticMethodSignature(ui.Color, () => ['_linearizeColorComponent', 'lerp', 'alphaBlend', 'getAlphaFromOpacity']);
  dart.setGetterSignature(ui.Color, () => dart.global.Object.setPrototypeOf({
    alpha: T$.int(),
    opacity: T$.double(),
    red: T$.int(),
    green: T$.int(),
    blue: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.Color))));
  dart.setLibraryUri(ui.Color, I[198]);
  dart.setFieldSignature(ui.Color, () => dart.global.Object.setPrototypeOf({value: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.Color))));
  dart.defineExtensionMethods(ui.Color, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.Color, ['hashCode']);
  ui.StrokeCap = class StrokeCap extends core._Enum {
    [_enumToString]() {
      return "StrokeCap." + dart.str(this[_name$]);
    }
  };
  (ui.StrokeCap.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 156, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 156, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.StrokeCap).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.StrokeCap.prototype;
  dart.addRtiResources(ui.StrokeCap, ["ui|StrokeCap"]);
  dart.setMethodSignature(ui.StrokeCap, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.StrokeCap))));
  dart.setLibraryUri(ui.StrokeCap, I[198]);
  dart.setStaticFieldSignature(ui.StrokeCap, () => ['values', 'butt', 'round', 'square']);
  dart.defineLazy(ui.StrokeCap, {
    /*ui.StrokeCap.values*/get values() {
      return C[540] || CT.C540;
    },
    /*ui.StrokeCap.butt*/get butt() {
      return C[541] || CT.C541;
    },
    /*ui.StrokeCap.round*/get round() {
      return C[542] || CT.C542;
    },
    /*ui.StrokeCap.square*/get square() {
      return C[543] || CT.C543;
    }
  }, false);
  ui.StrokeJoin = class StrokeJoin extends core._Enum {
    [_enumToString]() {
      return "StrokeJoin." + dart.str(this[_name$]);
    }
  };
  (ui.StrokeJoin.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 163, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 163, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.StrokeJoin).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.StrokeJoin.prototype;
  dart.addRtiResources(ui.StrokeJoin, ["ui|StrokeJoin"]);
  dart.setMethodSignature(ui.StrokeJoin, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.StrokeJoin))));
  dart.setLibraryUri(ui.StrokeJoin, I[198]);
  dart.setStaticFieldSignature(ui.StrokeJoin, () => ['values', 'miter', 'round', 'bevel']);
  dart.defineLazy(ui.StrokeJoin, {
    /*ui.StrokeJoin.values*/get values() {
      return C[544] || CT.C544;
    },
    /*ui.StrokeJoin.miter*/get miter() {
      return C[545] || CT.C545;
    },
    /*ui.StrokeJoin.round*/get round() {
      return C[546] || CT.C546;
    },
    /*ui.StrokeJoin.bevel*/get bevel() {
      return C[547] || CT.C547;
    }
  }, false);
  ui.PaintingStyle = class PaintingStyle extends core._Enum {
    [_enumToString]() {
      return "PaintingStyle." + dart.str(this[_name$]);
    }
  };
  (ui.PaintingStyle.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 169, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 169, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.PaintingStyle).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.PaintingStyle.prototype;
  dart.addRtiResources(ui.PaintingStyle, ["ui|PaintingStyle"]);
  dart.setMethodSignature(ui.PaintingStyle, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PaintingStyle))));
  dart.setLibraryUri(ui.PaintingStyle, I[198]);
  dart.setStaticFieldSignature(ui.PaintingStyle, () => ['values', 'fill', 'stroke']);
  dart.defineLazy(ui.PaintingStyle, {
    /*ui.PaintingStyle.values*/get values() {
      return C[548] || CT.C548;
    },
    /*ui.PaintingStyle.fill*/get fill() {
      return C[549] || CT.C549;
    },
    /*ui.PaintingStyle.stroke*/get stroke() {
      return C[550] || CT.C550;
    }
  }, false);
  ui.BlendMode = class BlendMode extends core._Enum {
    [_enumToString]() {
      return "BlendMode." + dart.str(this[_name$]);
    }
  };
  (ui.BlendMode.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 174, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 174, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.BlendMode).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.BlendMode.prototype;
  dart.addRtiResources(ui.BlendMode, ["ui|BlendMode"]);
  dart.setMethodSignature(ui.BlendMode, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.BlendMode))));
  dart.setLibraryUri(ui.BlendMode, I[198]);
  dart.setStaticFieldSignature(ui.BlendMode, () => ['values', 'clear', 'src', 'dst', 'srcOver', 'dstOver', 'srcIn', 'dstIn', 'srcOut', 'dstOut', 'srcATop', 'dstATop', 'xor', 'plus', 'modulate', 'screen', 'overlay', 'darken', 'lighten', 'colorDodge', 'colorBurn', 'hardLight', 'softLight', 'difference', 'exclusion', 'multiply', 'hue', 'saturation', 'color', 'luminosity']);
  dart.defineLazy(ui.BlendMode, {
    /*ui.BlendMode.values*/get values() {
      return C[551] || CT.C551;
    },
    /*ui.BlendMode.clear*/get clear() {
      return C[552] || CT.C552;
    },
    /*ui.BlendMode.src*/get src() {
      return C[553] || CT.C553;
    },
    /*ui.BlendMode.dst*/get dst() {
      return C[554] || CT.C554;
    },
    /*ui.BlendMode.srcOver*/get srcOver() {
      return C[555] || CT.C555;
    },
    /*ui.BlendMode.dstOver*/get dstOver() {
      return C[556] || CT.C556;
    },
    /*ui.BlendMode.srcIn*/get srcIn() {
      return C[557] || CT.C557;
    },
    /*ui.BlendMode.dstIn*/get dstIn() {
      return C[558] || CT.C558;
    },
    /*ui.BlendMode.srcOut*/get srcOut() {
      return C[559] || CT.C559;
    },
    /*ui.BlendMode.dstOut*/get dstOut() {
      return C[560] || CT.C560;
    },
    /*ui.BlendMode.srcATop*/get srcATop() {
      return C[561] || CT.C561;
    },
    /*ui.BlendMode.dstATop*/get dstATop() {
      return C[562] || CT.C562;
    },
    /*ui.BlendMode.xor*/get xor() {
      return C[563] || CT.C563;
    },
    /*ui.BlendMode.plus*/get plus() {
      return C[564] || CT.C564;
    },
    /*ui.BlendMode.modulate*/get modulate() {
      return C[565] || CT.C565;
    },
    /*ui.BlendMode.screen*/get screen() {
      return C[566] || CT.C566;
    },
    /*ui.BlendMode.overlay*/get overlay() {
      return C[567] || CT.C567;
    },
    /*ui.BlendMode.darken*/get darken() {
      return C[568] || CT.C568;
    },
    /*ui.BlendMode.lighten*/get lighten() {
      return C[569] || CT.C569;
    },
    /*ui.BlendMode.colorDodge*/get colorDodge() {
      return C[570] || CT.C570;
    },
    /*ui.BlendMode.colorBurn*/get colorBurn() {
      return C[571] || CT.C571;
    },
    /*ui.BlendMode.hardLight*/get hardLight() {
      return C[572] || CT.C572;
    },
    /*ui.BlendMode.softLight*/get softLight() {
      return C[573] || CT.C573;
    },
    /*ui.BlendMode.difference*/get difference() {
      return C[574] || CT.C574;
    },
    /*ui.BlendMode.exclusion*/get exclusion() {
      return C[575] || CT.C575;
    },
    /*ui.BlendMode.multiply*/get multiply() {
      return C[576] || CT.C576;
    },
    /*ui.BlendMode.hue*/get hue() {
      return C[577] || CT.C577;
    },
    /*ui.BlendMode.saturation*/get saturation() {
      return C[578] || CT.C578;
    },
    /*ui.BlendMode.color*/get color() {
      return C[579] || CT.C579;
    },
    /*ui.BlendMode.luminosity*/get luminosity() {
      return C[580] || CT.C580;
    }
  }, false);
  ui.Clip = class Clip extends core._Enum {
    [_enumToString]() {
      return "Clip." + dart.str(this[_name$]);
    }
  };
  (ui.Clip.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 211, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 211, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.Clip).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.Clip.prototype;
  dart.addRtiResources(ui.Clip, ["ui|Clip"]);
  dart.setMethodSignature(ui.Clip, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Clip))));
  dart.setLibraryUri(ui.Clip, I[198]);
  dart.setStaticFieldSignature(ui.Clip, () => ['values', 'none', 'hardEdge', 'antiAlias', 'antiAliasWithSaveLayer']);
  dart.defineLazy(ui.Clip, {
    /*ui.Clip.values*/get values() {
      return C[581] || CT.C581;
    },
    /*ui.Clip.none*/get none() {
      return C[582] || CT.C582;
    },
    /*ui.Clip.hardEdge*/get hardEdge() {
      return C[583] || CT.C583;
    },
    /*ui.Clip.antiAlias*/get antiAlias() {
      return C[584] || CT.C584;
    },
    /*ui.Clip.antiAliasWithSaveLayer*/get antiAliasWithSaveLayer() {
      return C[585] || CT.C585;
    }
  }, false);
  ui.Paint = class Paint extends core.Object {
    static new() {
      return _engine.renderer.createPaint();
    }
    static ['_#new#tearOff']() {
      return ui.Paint.new();
    }
    static from(other) {
      let t$36423;
      if (other == null) dart.nullFailed(I[203], 221, 28, "other");
      let paint = ui.Paint.new();
      t$36423 = paint;
      (() => {
        t$36423.blendMode = other.blendMode;
        t$36423.color = other.color;
        t$36423.colorFilter = other.colorFilter;
        t$36423.filterQuality = other.filterQuality;
        t$36423.imageFilter = other.imageFilter;
        t$36423.invertColors = other.invertColors;
        t$36423.isAntiAlias = other.isAntiAlias;
        t$36423.maskFilter = other.maskFilter;
        t$36423.shader = other.shader;
        t$36423.strokeCap = other.strokeCap;
        t$36423.strokeJoin = other.strokeJoin;
        t$36423.strokeMiterLimit = other.strokeMiterLimit;
        t$36423.strokeWidth = other.strokeWidth;
        t$36423.style = other.style;
        return t$36423;
      })();
      return paint;
    }
    static ['_#from#tearOff'](other) {
      if (other == null) dart.nullFailed(I[203], 221, 28, "other");
      return ui.Paint.from(other);
    }
  };
  (ui.Paint[dart.mixinNew] = function() {
  }).prototype = ui.Paint.prototype;
  dart.addRtiResources(ui.Paint, ["ui|Paint"]);
  dart.setStaticMethodSignature(ui.Paint, () => ['new', 'from']);
  dart.setLibraryUri(ui.Paint, I[198]);
  ui.Shader = class Shader extends core.Object {};
  (ui.Shader.__ = function() {
    ;
  }).prototype = ui.Shader.prototype;
  dart.addRtiResources(ui.Shader, ["ui|Shader"]);
  dart.setLibraryUri(ui.Shader, I[198]);
  ui.Gradient = class Gradient extends core.Object {
    static linear(from, to, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null) {
      if (from == null) dart.nullFailed(I[203], 293, 12, "from");
      if (to == null) dart.nullFailed(I[203], 294, 12, "to");
      if (colors == null) dart.nullFailed(I[203], 295, 17, "colors");
      if (tileMode == null) dart.nullFailed(I[203], 297, 14, "tileMode");
      let matrix = matrix4 == null ? null : _engine.toMatrix32(matrix4);
      return _engine.renderer.createLinearGradient(from, to, colors, colorStops, tileMode, matrix);
    }
    static ['_#linear#tearOff'](from, to, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null) {
      if (from == null) dart.nullFailed(I[203], 293, 12, "from");
      if (to == null) dart.nullFailed(I[203], 294, 12, "to");
      if (colors == null) dart.nullFailed(I[203], 295, 17, "colors");
      if (tileMode == null) dart.nullFailed(I[203], 297, 14, "tileMode");
      return ui.Gradient.linear(from, to, colors, colorStops, tileMode, matrix4);
    }
    static radial(center, radius, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null, focal = null, focalRadius = 0) {
      if (center == null) dart.nullFailed(I[203], 311, 12, "center");
      if (radius == null) dart.nullFailed(I[203], 312, 12, "radius");
      if (colors == null) dart.nullFailed(I[203], 313, 17, "colors");
      if (tileMode == null) dart.nullFailed(I[203], 315, 14, "tileMode");
      if (focalRadius == null) dart.nullFailed(I[203], 318, 12, "focalRadius");
      ui._validateColorStops(colors, colorStops);
      let matrix32 = matrix4 != null ? _engine.toMatrix32(matrix4) : null;
      if (focal == null || dart.equals(focal, center) && focalRadius === 0.0) {
        return _engine.renderer.createRadialGradient(center, radius, colors, colorStops, tileMode, matrix32);
      } else {
        if (!(!dart.equals(center, ui.Offset.zero) || !dart.equals(focal, ui.Offset.zero))) dart.assertFailed(null, I[203], 328, 14, "center != Offset.zero ||\n          focal != Offset.zero");
        return _engine.renderer.createConicalGradient(focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix32);
      }
    }
    static ['_#radial#tearOff'](center, radius, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null, focal = null, focalRadius = 0) {
      if (center == null) dart.nullFailed(I[203], 311, 12, "center");
      if (radius == null) dart.nullFailed(I[203], 312, 12, "radius");
      if (colors == null) dart.nullFailed(I[203], 313, 17, "colors");
      if (tileMode == null) dart.nullFailed(I[203], 315, 14, "tileMode");
      if (focalRadius == null) dart.nullFailed(I[203], 318, 12, "focalRadius");
      return ui.Gradient.radial(center, radius, colors, colorStops, tileMode, matrix4, focal, focalRadius);
    }
    static sweep(center, colors, colorStops = null, tileMode = C[586] || CT.C586, startAngle = 0, endAngle = 6.283185307179586, matrix4 = null) {
      if (center == null) dart.nullFailed(I[203], 335, 12, "center");
      if (colors == null) dart.nullFailed(I[203], 336, 17, "colors");
      if (tileMode == null) dart.nullFailed(I[203], 338, 14, "tileMode");
      if (startAngle == null) dart.nullFailed(I[203], 339, 12, "startAngle");
      if (endAngle == null) dart.nullFailed(I[203], 340, 12, "endAngle");
      return _engine.renderer.createSweepGradient(center, colors, colorStops, tileMode, startAngle, endAngle, matrix4 != null ? _engine.toMatrix32(matrix4) : null);
    }
    static ['_#sweep#tearOff'](center, colors, colorStops = null, tileMode = C[586] || CT.C586, startAngle = 0, endAngle = 6.283185307179586, matrix4 = null) {
      if (center == null) dart.nullFailed(I[203], 335, 12, "center");
      if (colors == null) dart.nullFailed(I[203], 336, 17, "colors");
      if (tileMode == null) dart.nullFailed(I[203], 338, 14, "tileMode");
      if (startAngle == null) dart.nullFailed(I[203], 339, 12, "startAngle");
      if (endAngle == null) dart.nullFailed(I[203], 340, 12, "endAngle");
      return ui.Gradient.sweep(center, colors, colorStops, tileMode, startAngle, endAngle, matrix4);
    }
  };
  (ui.Gradient[dart.mixinNew] = function() {
  }).prototype = ui.Gradient.prototype;
  dart.addRtiResources(ui.Gradient, ["ui|Gradient", "ui|Shader"]);
  dart.setStaticMethodSignature(ui.Gradient, () => ['linear', 'radial', 'sweep']);
  dart.setLibraryUri(ui.Gradient, I[198]);
  ui.Image = class Image extends core.Object {
    clone() {
      return this;
    }
    isCloneOf(other) {
      if (other == null) dart.nullFailed(I[203], 366, 24, "other");
      return dart.equals(other, this);
    }
    debugGetOpenHandleStackTraces() {
      return null;
    }
    get colorSpace() {
      return ui.ColorSpace.sRGB;
    }
    toString() {
      return "[" + dart.str(this.width) + "×" + dart.str(this.height) + "]";
    }
  };
  (ui.Image.new = function() {
    ;
  }).prototype = ui.Image.prototype;
  dart.addRtiResources(ui.Image, ["ui|Image"]);
  dart.setMethodSignature(ui.Image, () => dart.global.Object.setPrototypeOf({
    clone: T$8.VoidToImage(),
    isCloneOf: T$8.ImageTobool(),
    debugGetOpenHandleStackTraces: T$8.VoidToListNOfStackTrace()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Image))));
  dart.setGetterSignature(ui.Image, () => dart.global.Object.setPrototypeOf({colorSpace: T$8.ColorSpace()}, dart.getGetters(dart.global.Object.getPrototypeOf(ui.Image))));
  dart.setLibraryUri(ui.Image, I[198]);
  dart.setStaticFieldSignature(ui.Image, () => ['onCreate', 'onDispose']);
  dart.defineExtensionMethods(ui.Image, ['toString']);
  dart.defineLazy(ui.Image, {
    /*ui.Image.onCreate*/get onCreate() {
      return null;
    },
    set onCreate(value) {},
    /*ui.Image.onDispose*/get onDispose() {
      return null;
    },
    set onDispose(value) {}
  }, false);
  ui.ColorFilter = class ColorFilter extends core.Object {
    static ['_#mode#tearOff'](color, blendMode) {
      if (color == null) dart.nullFailed(I[203], 377, 40, "color");
      if (blendMode == null) dart.nullFailed(I[203], 377, 57, "blendMode");
      return new _engine.EngineColorFilter.mode(color, blendMode);
    }
    static ['_#matrix#tearOff'](matrix) {
      if (matrix == null) dart.nullFailed(I[203], 378, 49, "matrix");
      return new _engine.EngineColorFilter.matrix(matrix);
    }
    static ['_#linearToSrgbGamma#tearOff']() {
      return new _engine.EngineColorFilter.linearToSrgbGamma();
    }
    static ['_#srgbToLinearGamma#tearOff']() {
      return new _engine.EngineColorFilter.srgbToLinearGamma();
    }
  };
  (ui.ColorFilter[dart.mixinNew] = function() {
  }).prototype = ui.ColorFilter.prototype;
  dart.addRtiResources(ui.ColorFilter, ["ui|ColorFilter", "ui|ImageFilter"]);
  dart.setStaticMethodSignature(ui.ColorFilter, () => ['mode', 'matrix', 'linearToSrgbGamma', 'srgbToLinearGamma']);
  dart.setLibraryUri(ui.ColorFilter, I[198]);
  ui.BlurStyle = class BlurStyle extends core._Enum {
    [_enumToString]() {
      return "BlurStyle." + dart.str(this[_name$]);
    }
  };
  (ui.BlurStyle.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 384, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 384, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.BlurStyle).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.BlurStyle.prototype;
  dart.addRtiResources(ui.BlurStyle, ["ui|BlurStyle"]);
  dart.setMethodSignature(ui.BlurStyle, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.BlurStyle))));
  dart.setLibraryUri(ui.BlurStyle, I[198]);
  dart.setStaticFieldSignature(ui.BlurStyle, () => ['values', 'normal', 'solid', 'outer', 'inner']);
  dart.defineLazy(ui.BlurStyle, {
    /*ui.BlurStyle.values*/get values() {
      return C[587] || CT.C587;
    },
    /*ui.BlurStyle.normal*/get normal() {
      return C[588] || CT.C588;
    },
    /*ui.BlurStyle.solid*/get solid() {
      return C[589] || CT.C589;
    },
    /*ui.BlurStyle.outer*/get outer() {
      return C[590] || CT.C590;
    },
    /*ui.BlurStyle.inner*/get inner() {
      return C[591] || CT.C591;
    }
  }, false);
  var _style$ = dart.privateName(ui, "MaskFilter._style");
  var _sigma$ = dart.privateName(ui, "MaskFilter._sigma");
  var _style = dart.privateName(ui, "_style");
  var _sigma = dart.privateName(ui, "_sigma");
  ui.MaskFilter = class MaskFilter extends core.Object {
    get [_style]() {
      return this[_style$];
    }
    set [_style](value) {
      super[_style] = value;
    }
    get [_sigma]() {
      return this[_sigma$];
    }
    set [_sigma](value) {
      super[_sigma] = value;
    }
    static ['_#blur#tearOff'](_style, _sigma) {
      if (_style == null) dart.nullFailed(I[203], 394, 10, "_style");
      if (_sigma == null) dart.nullFailed(I[203], 395, 10, "_sigma");
      return new ui.MaskFilter.blur(_style, _sigma);
    }
    get webOnlySigma() {
      return this[_sigma];
    }
    get webOnlyBlurStyle() {
      return this[_style];
    }
    _equals(other) {
      if (other == null) return false;
      return T$9.MaskFilter()[_is](other) && other[_style] == this[_style] && other[_sigma] == this[_sigma];
    }
    get hashCode() {
      return core.Object.hash(this[_style], this[_sigma]);
    }
    toString() {
      return "MaskFilter.blur(" + dart.str(this[_style]) + ", " + this[_sigma][$toStringAsFixed](1) + ")";
    }
  };
  (ui.MaskFilter.blur = function(_style, _sigma) {
    if (_style == null) dart.nullFailed(I[203], 394, 10, "_style");
    if (_sigma == null) dart.nullFailed(I[203], 395, 10, "_sigma");
    this[_style$] = _style;
    this[_sigma$] = _sigma;
    ;
  }).prototype = ui.MaskFilter.prototype;
  dart.addRtiResources(ui.MaskFilter, ["ui|MaskFilter"]);
  dart.setGetterSignature(ui.MaskFilter, () => dart.global.Object.setPrototypeOf({
    webOnlySigma: T$.double(),
    webOnlyBlurStyle: T$8.BlurStyle()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.MaskFilter))));
  dart.setLibraryUri(ui.MaskFilter, I[198]);
  dart.setFieldSignature(ui.MaskFilter, () => dart.global.Object.setPrototypeOf({
    [_style]: {type: T$8.BlurStyle(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_sigma]: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.MaskFilter))));
  dart.defineExtensionMethods(ui.MaskFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.MaskFilter, ['hashCode']);
  ui.FilterQuality = class FilterQuality extends core._Enum {
    [_enumToString]() {
      return "FilterQuality." + dart.str(this[_name$]);
    }
  };
  (ui.FilterQuality.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 418, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 418, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.FilterQuality).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.FilterQuality.prototype;
  dart.addRtiResources(ui.FilterQuality, ["ui|FilterQuality"]);
  dart.setMethodSignature(ui.FilterQuality, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.FilterQuality))));
  dart.setLibraryUri(ui.FilterQuality, I[198]);
  dart.setStaticFieldSignature(ui.FilterQuality, () => ['values', 'none', 'low', 'medium', 'high']);
  dart.defineLazy(ui.FilterQuality, {
    /*ui.FilterQuality.values*/get values() {
      return C[592] || CT.C592;
    },
    /*ui.FilterQuality.none*/get none() {
      return C[593] || CT.C593;
    },
    /*ui.FilterQuality.low*/get low() {
      return C[594] || CT.C594;
    },
    /*ui.FilterQuality.medium*/get medium() {
      return C[595] || CT.C595;
    },
    /*ui.FilterQuality.high*/get high() {
      return C[596] || CT.C596;
    }
  }, false);
  ui.ImageFilter = class ImageFilter extends core.Object {
    static blur(opts) {
      let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : 0;
      if (sigmaX == null) dart.nullFailed(I[203], 427, 12, "sigmaX");
      let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : 0;
      if (sigmaY == null) dart.nullFailed(I[203], 428, 12, "sigmaY");
      let tileMode = opts && 'tileMode' in opts ? opts.tileMode : C[586] || CT.C586;
      if (tileMode == null) dart.nullFailed(I[203], 429, 14, "tileMode");
      return _engine.renderer.createBlurImageFilter({sigmaX: sigmaX, sigmaY: sigmaY, tileMode: tileMode});
    }
    static ['_#blur#tearOff'](opts) {
      let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : 0;
      if (sigmaX == null) dart.nullFailed(I[203], 427, 12, "sigmaX");
      let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : 0;
      if (sigmaY == null) dart.nullFailed(I[203], 428, 12, "sigmaY");
      let tileMode = opts && 'tileMode' in opts ? opts.tileMode : C[586] || CT.C586;
      if (tileMode == null) dart.nullFailed(I[203], 429, 14, "tileMode");
      return ui.ImageFilter.blur({sigmaX: sigmaX, sigmaY: sigmaY, tileMode: tileMode});
    }
    static dilate(opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[203], 436, 39, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[203], 436, 61, "radiusY");
      return _engine.renderer.createDilateImageFilter({radiusX: radiusX, radiusY: radiusY});
    }
    static ['_#dilate#tearOff'](opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[203], 436, 39, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[203], 436, 61, "radiusY");
      return ui.ImageFilter.dilate({radiusX: radiusX, radiusY: radiusY});
    }
    static erode(opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[203], 439, 38, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[203], 439, 60, "radiusY");
      return _engine.renderer.createErodeImageFilter({radiusX: radiusX, radiusY: radiusY});
    }
    static ['_#erode#tearOff'](opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[203], 439, 38, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[203], 439, 60, "radiusY");
      return ui.ImageFilter.erode({radiusX: radiusX, radiusY: radiusY});
    }
    static matrix(matrix4, opts) {
      if (matrix4 == null) dart.nullFailed(I[203], 442, 42, "matrix4");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[595] || CT.C595;
      if (filterQuality == null) dart.nullFailed(I[203], 442, 66, "filterQuality");
      if (matrix4[$length] !== 16) {
        dart.throw(new core.ArgumentError.new("\"matrix4\" must have 16 entries."));
      }
      return _engine.renderer.createMatrixImageFilter(matrix4, {filterQuality: filterQuality});
    }
    static ['_#matrix#tearOff'](matrix4, opts) {
      if (matrix4 == null) dart.nullFailed(I[203], 442, 42, "matrix4");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[595] || CT.C595;
      if (filterQuality == null) dart.nullFailed(I[203], 442, 66, "filterQuality");
      return ui.ImageFilter.matrix(matrix4, {filterQuality: filterQuality});
    }
    static compose(opts) {
      let outer = opts && 'outer' in opts ? opts.outer : null;
      if (outer == null) dart.nullFailed(I[203], 449, 53, "outer");
      let inner = opts && 'inner' in opts ? opts.inner : null;
      if (inner == null) dart.nullFailed(I[203], 449, 81, "inner");
      return _engine.renderer.composeImageFilters({outer: outer, inner: inner});
    }
    static ['_#compose#tearOff'](opts) {
      let outer = opts && 'outer' in opts ? opts.outer : null;
      if (outer == null) dart.nullFailed(I[203], 449, 53, "outer");
      let inner = opts && 'inner' in opts ? opts.inner : null;
      if (inner == null) dart.nullFailed(I[203], 449, 81, "inner");
      return ui.ImageFilter.compose({outer: outer, inner: inner});
    }
  };
  (ui.ImageFilter[dart.mixinNew] = function() {
  }).prototype = ui.ImageFilter.prototype;
  dart.addRtiResources(ui.ImageFilter, ["ui|ImageFilter"]);
  dart.setStaticMethodSignature(ui.ImageFilter, () => ['blur', 'dilate', 'erode', 'matrix', 'compose']);
  dart.setLibraryUri(ui.ImageFilter, I[198]);
  ui.ColorSpace = class ColorSpace extends core._Enum {
    [_enumToString]() {
      return "ColorSpace." + dart.str(this[_name$]);
    }
  };
  (ui.ColorSpace.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 453, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 453, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.ColorSpace).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.ColorSpace.prototype;
  dart.addRtiResources(ui.ColorSpace, ["ui|ColorSpace"]);
  dart.setMethodSignature(ui.ColorSpace, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.ColorSpace))));
  dart.setLibraryUri(ui.ColorSpace, I[198]);
  dart.setStaticFieldSignature(ui.ColorSpace, () => ['values', 'sRGB', 'extendedSRGB']);
  dart.defineLazy(ui.ColorSpace, {
    /*ui.ColorSpace.values*/get values() {
      return C[597] || CT.C597;
    },
    /*ui.ColorSpace.sRGB*/get sRGB() {
      return C[598] || CT.C598;
    },
    /*ui.ColorSpace.extendedSRGB*/get extendedSRGB() {
      return C[599] || CT.C599;
    }
  }, false);
  ui.ImageByteFormat = class ImageByteFormat extends core._Enum {
    [_enumToString]() {
      return "ImageByteFormat." + dart.str(this[_name$]);
    }
  };
  (ui.ImageByteFormat.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 459, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 459, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.ImageByteFormat).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.ImageByteFormat.prototype;
  dart.addRtiResources(ui.ImageByteFormat, ["ui|ImageByteFormat"]);
  dart.setMethodSignature(ui.ImageByteFormat, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.ImageByteFormat))));
  dart.setLibraryUri(ui.ImageByteFormat, I[198]);
  dart.setStaticFieldSignature(ui.ImageByteFormat, () => ['values', 'rawRgba', 'rawStraightRgba', 'rawUnmodified', 'png']);
  dart.defineLazy(ui.ImageByteFormat, {
    /*ui.ImageByteFormat.values*/get values() {
      return C[600] || CT.C600;
    },
    /*ui.ImageByteFormat.rawRgba*/get rawRgba() {
      return C[601] || CT.C601;
    },
    /*ui.ImageByteFormat.rawStraightRgba*/get rawStraightRgba() {
      return C[602] || CT.C602;
    },
    /*ui.ImageByteFormat.rawUnmodified*/get rawUnmodified() {
      return C[603] || CT.C603;
    },
    /*ui.ImageByteFormat.png*/get png() {
      return C[604] || CT.C604;
    }
  }, false);
  ui.PixelFormat = class PixelFormat extends core._Enum {
    [_enumToString]() {
      return "PixelFormat." + dart.str(this[_name$]);
    }
  };
  (ui.PixelFormat.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[203], 467, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[203], 467, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.PixelFormat).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.PixelFormat.prototype;
  dart.addRtiResources(ui.PixelFormat, ["ui|PixelFormat"]);
  dart.setMethodSignature(ui.PixelFormat, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PixelFormat))));
  dart.setLibraryUri(ui.PixelFormat, I[198]);
  dart.setStaticFieldSignature(ui.PixelFormat, () => ['values', 'rgba8888', 'bgra8888', 'rgbaFloat32']);
  dart.defineLazy(ui.PixelFormat, {
    /*ui.PixelFormat.values*/get values() {
      return C[605] || CT.C605;
    },
    /*ui.PixelFormat.rgba8888*/get rgba8888() {
      return C[606] || CT.C606;
    },
    /*ui.PixelFormat.bgra8888*/get bgra8888() {
      return C[607] || CT.C607;
    },
    /*ui.PixelFormat.rgbaFloat32*/get rgbaFloat32() {
      return C[608] || CT.C608;
    }
  }, false);
  var _durationMillis = dart.privateName(ui, "_durationMillis");
  ui.FrameInfo = class FrameInfo extends core.Object {
    get duration() {
      return new core.Duration.new({milliseconds: this[_durationMillis]});
    }
    get [_durationMillis]() {
      return 0;
    }
  };
  (ui.FrameInfo.__ = function() {
    ;
  }).prototype = ui.FrameInfo.prototype;
  dart.addRtiResources(ui.FrameInfo, ["ui|FrameInfo"]);
  dart.setGetterSignature(ui.FrameInfo, () => dart.global.Object.setPrototypeOf({
    duration: T$8.Duration(),
    [_durationMillis]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.FrameInfo))));
  dart.setLibraryUri(ui.FrameInfo, I[198]);
  var _getNextFrame = dart.privateName(ui, "_getNextFrame");
  ui.Codec = class Codec extends core.Object {
    static ['_#_#tearOff']() {
      return new ui.Codec.__();
    }
    get frameCount() {
      return 0;
    }
    get repetitionCount() {
      return 0;
    }
    getNextFrame() {
      return _engine.futurize(T$9.FrameInfo(), dart.bind(this, _getNextFrame));
    }
    [_getNextFrame](callback) {
      if (callback == null) dart.nullFailed(I[203], 490, 52, "callback");
      return null;
    }
    dispose() {
    }
  };
  (ui.Codec.__ = function() {
    ;
  }).prototype = ui.Codec.prototype;
  dart.addRtiResources(ui.Codec, ["ui|Codec"]);
  dart.setMethodSignature(ui.Codec, () => dart.global.Object.setPrototypeOf({
    getNextFrame: T$9.VoidToFutureOfFrameInfo(),
    [_getNextFrame]: T$9.FnToStringN(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Codec))));
  dart.setGetterSignature(ui.Codec, () => dart.global.Object.setPrototypeOf({
    frameCount: T$.int(),
    repetitionCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.Codec))));
  dart.setLibraryUri(ui.Codec, I[198]);
  var width$0 = dart.privateName(ui, "TargetImageSize.width");
  var height$0 = dart.privateName(ui, "TargetImageSize.height");
  ui.TargetImageSize = class TargetImageSize extends core.Object {
    get width() {
      return this[width$0];
    }
    set width(value) {
      super.width = value;
    }
    get height() {
      return this[height$0];
    }
    set height(value) {
      super.height = value;
    }
    static ['_#new#tearOff'](opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      let height = opts && 'height' in opts ? opts.height : null;
      return new ui.TargetImageSize.new({width: width, height: height});
    }
  };
  (ui.TargetImageSize.new = function(opts) {
    let width = opts && 'width' in opts ? opts.width : null;
    let height = opts && 'height' in opts ? opts.height : null;
    this[width$0] = width;
    this[height$0] = height;
    if (!(width == null || dart.notNull(width) > 0)) dart.assertFailed(null, I[203], 545, 16, "width == null || width > 0");
    if (!(height == null || dart.notNull(height) > 0)) dart.assertFailed(null, I[203], 546, 16, "height == null || height > 0");
    ;
  }).prototype = ui.TargetImageSize.prototype;
  dart.addRtiResources(ui.TargetImageSize, ["ui|TargetImageSize"]);
  dart.setLibraryUri(ui.TargetImageSize, I[198]);
  dart.setFieldSignature(ui.TargetImageSize, () => dart.global.Object.setPrototypeOf({
    width: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.TargetImageSize))));
  var color$ = dart.privateName(ui, "Shadow.color");
  var offset$0 = dart.privateName(ui, "Shadow.offset");
  var blurRadius$ = dart.privateName(ui, "Shadow.blurRadius");
  ui.Shadow = class Shadow extends core.Object {
    get color() {
      return this[color$];
    }
    set color(value) {
      super.color = value;
    }
    get offset() {
      return this[offset$0];
    }
    set offset(value) {
      super.offset = value;
    }
    get blurRadius() {
      return this[blurRadius$];
    }
    set blurRadius(value) {
      super.blurRadius = value;
    }
    static ['_#new#tearOff'](opts) {
      let color = opts && 'color' in opts ? opts.color : C[609] || CT.C609;
      if (color == null) dart.nullFailed(I[203], 686, 10, "color");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[203], 687, 10, "offset");
      let blurRadius = opts && 'blurRadius' in opts ? opts.blurRadius : 0;
      if (blurRadius == null) dart.nullFailed(I[203], 688, 10, "blurRadius");
      return new ui.Shadow.new({color: color, offset: offset, blurRadius: blurRadius});
    }
    static convertRadiusToSigma(radius) {
      if (radius == null) dart.nullFailed(I[203], 697, 45, "radius");
      return dart.notNull(radius) > 0 ? dart.notNull(radius) * 0.57735 + 0.5 : 0.0;
    }
    get blurSigma() {
      return ui.Shadow.convertRadiusToSigma(this.blurRadius);
    }
    toPaint() {
      let t$36433;
      t$36433 = ui.Paint.new();
      return (() => {
        t$36433.color = this.color;
        t$36433.maskFilter = new ui.MaskFilter.blur(ui.BlurStyle.normal, this.blurSigma);
        return t$36433;
      })();
    }
    scale(factor) {
      if (factor == null) dart.nullFailed(I[203], 708, 23, "factor");
      return new ui.Shadow.new({color: this.color, offset: this.offset['*'](factor), blurRadius: dart.notNull(this.blurRadius) * dart.notNull(factor)});
    }
    static lerp(a, b, t) {
      if (t == null) dart.nullFailed(I[203], 716, 52, "t");
      if (b == null) {
        if (a == null) {
          return null;
        } else {
          return a.scale(1.0 - dart.notNull(t));
        }
      } else {
        if (a == null) {
          return b.scale(t);
        } else {
          return new ui.Shadow.new({color: dart.nullCheck(ui.Color.lerp(a.color, b.color, t)), offset: dart.nullCheck(ui.Offset.lerp(a.offset, b.offset, t)), blurRadius: ui._lerpDouble(a.blurRadius, b.blurRadius, t)});
        }
      }
    }
    static lerpList(a, b, t) {
      if (t == null) dart.nullFailed(I[203], 736, 74, "t");
      if (a == null && b == null) {
        return null;
      }
      a == null ? a = G$.JSArrayOfShadow().of([]) : null;
      b == null ? b = G$.JSArrayOfShadow().of([]) : null;
      let result = G$.JSArrayOfShadow().of([]);
      let commonLength = math.min(T$.int(), a[$length], b[$length]);
      for (let i = 0; i < commonLength; i = i + 1) {
        result[$add](dart.nullCheck(ui.Shadow.lerp(a[$_get](i), b[$_get](i), t)));
      }
      for (let i = commonLength; i < dart.notNull(a[$length]); i = i + 1) {
        result[$add](a[$_get](i).scale(1.0 - dart.notNull(t)));
      }
      for (let i = commonLength; i < dart.notNull(b[$length]); i = i + 1) {
        result[$add](b[$_get](i).scale(t));
      }
      return result;
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      return T$9.Shadow()[_is](other) && dart.equals(other.color, this.color) && dart.equals(other.offset, this.offset) && other.blurRadius == this.blurRadius;
    }
    get hashCode() {
      return core.Object.hash(this.color, this.offset, this.blurRadius);
    }
    toString() {
      return "TextShadow(" + dart.str(this.color) + ", " + dart.str(this.offset) + ", " + dart.str(this.blurRadius) + ")";
    }
  };
  (ui.Shadow.new = function(opts) {
    let color = opts && 'color' in opts ? opts.color : C[609] || CT.C609;
    if (color == null) dart.nullFailed(I[203], 686, 10, "color");
    let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
    if (offset == null) dart.nullFailed(I[203], 687, 10, "offset");
    let blurRadius = opts && 'blurRadius' in opts ? opts.blurRadius : 0;
    if (blurRadius == null) dart.nullFailed(I[203], 688, 10, "blurRadius");
    this[color$] = color;
    this[offset$0] = offset;
    this[blurRadius$] = blurRadius;
    if (!(dart.notNull(blurRadius) >= 0.0)) dart.assertFailed("Text shadow blur radius should be non-negative.", I[203], 689, 16, "blurRadius >= 0.0");
    ;
  }).prototype = ui.Shadow.prototype;
  dart.addRtiResources(ui.Shadow, ["ui|Shadow"]);
  dart.setMethodSignature(ui.Shadow, () => dart.global.Object.setPrototypeOf({
    toPaint: T$8.VoidToPaint(),
    scale: T$9.doubleToShadow()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Shadow))));
  dart.setStaticMethodSignature(ui.Shadow, () => ['convertRadiusToSigma', 'lerp', 'lerpList']);
  dart.setGetterSignature(ui.Shadow, () => dart.global.Object.setPrototypeOf({blurSigma: T$.double()}, dart.getGetters(dart.global.Object.getPrototypeOf(ui.Shadow))));
  dart.setLibraryUri(ui.Shadow, I[198]);
  dart.setFieldSignature(ui.Shadow, () => dart.global.Object.setPrototypeOf({
    color: {type: T$8.Color(), isConst: false, isFinal: true, libraryUri: I[198]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    blurRadius: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.Shadow))));
  dart.setStaticFieldSignature(ui.Shadow, () => ['_kColorDefault']);
  dart.defineExtensionMethods(ui.Shadow, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.Shadow, ['hashCode']);
  dart.defineLazy(ui.Shadow, {
    /*ui.Shadow._kColorDefault*/get _kColorDefault() {
      return 4278190080.0;
    }
  }, false);
  ui.ImageShader = class ImageShader extends core.Object {
    static new(image, tmx, tmy, matrix4, opts) {
      if (image == null) dart.nullFailed(I[203], 776, 11, "image");
      if (tmx == null) dart.nullFailed(I[203], 777, 14, "tmx");
      if (tmy == null) dart.nullFailed(I[203], 778, 14, "tmy");
      if (matrix4 == null) dart.nullFailed(I[203], 779, 17, "matrix4");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : null;
      return _engine.renderer.createImageShader(image, tmx, tmy, matrix4, filterQuality);
    }
    static ['_#new#tearOff'](image, tmx, tmy, matrix4, opts) {
      if (image == null) dart.nullFailed(I[203], 776, 11, "image");
      if (tmx == null) dart.nullFailed(I[203], 777, 14, "tmx");
      if (tmy == null) dart.nullFailed(I[203], 778, 14, "tmy");
      if (matrix4 == null) dart.nullFailed(I[203], 779, 17, "matrix4");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : null;
      return ui.ImageShader.new(image, tmx, tmy, matrix4, {filterQuality: filterQuality});
    }
  };
  (ui.ImageShader[dart.mixinNew] = function() {
  }).prototype = ui.ImageShader.prototype;
  dart.addRtiResources(ui.ImageShader, ["ui|ImageShader", "ui|Shader"]);
  dart.setStaticMethodSignature(ui.ImageShader, () => ['new']);
  dart.setLibraryUri(ui.ImageShader, I[198]);
  var _list$17 = dart.privateName(ui, "_list");
  var _length$1 = dart.privateName(ui, "_length");
  ui.ImmutableBuffer = class ImmutableBuffer extends core.Object {
    static ['_#_#tearOff'](_length) {
      if (_length == null) dart.nullFailed(I[203], 797, 26, "_length");
      return new ui.ImmutableBuffer.__(_length);
    }
    static fromUint8List(list) {
      if (list == null) dart.nullFailed(I[203], 798, 58, "list");
      return async.async(T$9.ImmutableBuffer(), function* fromUint8List() {
        let instance = new ui.ImmutableBuffer.__(list[$length]);
        instance[_list$17] = list;
        return instance;
      });
    }
    static fromAsset(assetKey) {
      if (assetKey == null) dart.nullFailed(I[203], 804, 51, "assetKey");
      return async.async(T$9.ImmutableBuffer(), function* fromAsset() {
        dart.throw(new core.UnsupportedError.new("ImmutableBuffer.fromAsset is not supported on the web."));
      });
    }
    static fromFilePath(path) {
      if (path == null) dart.nullFailed(I[203], 808, 54, "path");
      return async.async(T$9.ImmutableBuffer(), function* fromFilePath() {
        dart.throw(new core.UnsupportedError.new("ImmutableBuffer.fromFilePath is not supported on the web."));
      });
    }
    get length() {
      return this[_length$1];
    }
    get debugDisposed() {
      let disposed = null;
      let t$36$35disposed$35isSet = false;
      function t$36$35disposed$35get() {
        return t$36$35disposed$35isSet ? disposed : dart.throw(new _internal.LateError.localNI("disposed"));
      }
      function t$36$35disposed$35set(disposed$35param) {
        if (disposed$35param == null) dart.nullFailed(I[203], 818, 15, "disposed#param");
        t$36$35disposed$35isSet = true;
        return disposed = disposed$35param;
      }
      if (!dart.test(dart.fn(() => {
        t$36$35disposed$35set(this[_list$17] == null);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[203], 819, 12, "() {\n      disposed = _list == null;\n      return true;\n    }()");
      return t$36$35disposed$35get();
    }
    dispose() {
      return this[_list$17] = null;
    }
  };
  (ui.ImmutableBuffer.__ = function(_length) {
    if (_length == null) dart.nullFailed(I[203], 797, 26, "_length");
    this[_list$17] = null;
    this[_length$1] = _length;
    ;
  }).prototype = ui.ImmutableBuffer.prototype;
  dart.addRtiResources(ui.ImmutableBuffer, ["ui|ImmutableBuffer"]);
  dart.setMethodSignature(ui.ImmutableBuffer, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.ImmutableBuffer))));
  dart.setStaticMethodSignature(ui.ImmutableBuffer, () => ['fromUint8List', 'fromAsset', 'fromFilePath']);
  dart.setGetterSignature(ui.ImmutableBuffer, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    debugDisposed: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.ImmutableBuffer))));
  dart.setLibraryUri(ui.ImmutableBuffer, I[198]);
  dart.setFieldSignature(ui.ImmutableBuffer, () => dart.global.Object.setPrototypeOf({
    [_list$17]: {type: T$2.Uint8ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_length$1]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.ImmutableBuffer))));
  var _data$1 = dart.privateName(ui, "_data");
  var _width$ = dart.privateName(ui, "_width");
  var _height$ = dart.privateName(ui, "_height");
  var _rowBytes = dart.privateName(ui, "_rowBytes");
  var _format = dart.privateName(ui, "_format");
  var _throw = dart.privateName(ui, "_throw");
  ui.ImageDescriptor = class ImageDescriptor extends core.Object {
    static ['_#raw#tearOff'](buffer, opts) {
      if (buffer == null) dart.nullFailed(I[203], 831, 21, "buffer");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[203], 832, 18, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[203], 833, 18, "height");
      let rowBytes = opts && 'rowBytes' in opts ? opts.rowBytes : null;
      let pixelFormat = opts && 'pixelFormat' in opts ? opts.pixelFormat : null;
      if (pixelFormat == null) dart.nullFailed(I[203], 835, 26, "pixelFormat");
      return new ui.ImageDescriptor.raw(buffer, {width: width, height: height, rowBytes: rowBytes, pixelFormat: pixelFormat});
    }
    static ['_#_#tearOff']() {
      return new ui.ImageDescriptor.__();
    }
    static encoded(buffer) {
      if (buffer == null) dart.nullFailed(I[203], 849, 58, "buffer");
      return async.async(T$9.ImageDescriptor(), function* encoded() {
        let descriptor = new ui.ImageDescriptor.__();
        descriptor[_data$1] = buffer[_list$17];
        return descriptor;
      });
    }
    [_throw](parameter) {
      if (parameter == null) dart.nullFailed(I[203], 861, 23, "parameter");
      dart.throw(new core.UnsupportedError.new("ImageDescriptor." + dart.str(parameter) + " is not supported on web."));
    }
    get width() {
      let t$36436;
      t$36436 = this[_width$];
      return t$36436 == null ? (this[_throw]("width"), dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."))) : t$36436;
    }
    get height() {
      let t$36436;
      t$36436 = this[_height$];
      return t$36436 == null ? (this[_throw]("height"), dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."))) : t$36436;
    }
    get bytesPerPixel() {
      return dart.throw(new core.UnsupportedError.new("ImageDescriptor.bytesPerPixel is not supported on web."));
    }
    dispose() {
      return this[_data$1] = null;
    }
    instantiateCodec(opts) {
      let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
      let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
      return async.async(T$9.Codec(), (function* instantiateCodec() {
        let t$36436;
        if (this[_data$1] == null) {
          dart.throw(new core.StateError.new("Object is disposed"));
        }
        if (this[_width$] == null) {
          return ui.instantiateImageCodec(dart.nullCheck(this[_data$1]), {targetWidth: targetWidth, targetHeight: targetHeight, allowUpscaling: false});
        }
        return ui.createBmp(dart.nullCheck(this[_data$1]), this.width, this.height, (t$36436 = this[_rowBytes], t$36436 == null ? this.width : t$36436), dart.nullCheck(this[_format]));
      }).bind(this));
    }
  };
  (ui.ImageDescriptor.raw = function(buffer, opts) {
    if (buffer == null) dart.nullFailed(I[203], 831, 21, "buffer");
    let width = opts && 'width' in opts ? opts.width : null;
    if (width == null) dart.nullFailed(I[203], 832, 18, "width");
    let height = opts && 'height' in opts ? opts.height : null;
    if (height == null) dart.nullFailed(I[203], 833, 18, "height");
    let rowBytes = opts && 'rowBytes' in opts ? opts.rowBytes : null;
    let pixelFormat = opts && 'pixelFormat' in opts ? opts.pixelFormat : null;
    if (pixelFormat == null) dart.nullFailed(I[203], 835, 26, "pixelFormat");
    this[_data$1] = null;
    this[_width$] = width;
    this[_height$] = height;
    this[_rowBytes] = rowBytes;
    this[_format] = pixelFormat;
    this[_data$1] = buffer[_list$17];
  }).prototype = ui.ImageDescriptor.prototype;
  (ui.ImageDescriptor.__ = function() {
    this[_data$1] = null;
    this[_width$] = null;
    this[_height$] = null;
    this[_rowBytes] = null;
    this[_format] = null;
    ;
  }).prototype = ui.ImageDescriptor.prototype;
  dart.addRtiResources(ui.ImageDescriptor, ["ui|ImageDescriptor"]);
  dart.setMethodSignature(ui.ImageDescriptor, () => dart.global.Object.setPrototypeOf({
    [_throw]: T$9.StringToNever(),
    dispose: T$.VoidTovoid(),
    instantiateCodec: T$9.__ToFutureOfCodec()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.ImageDescriptor))));
  dart.setStaticMethodSignature(ui.ImageDescriptor, () => ['encoded']);
  dart.setGetterSignature(ui.ImageDescriptor, () => dart.global.Object.setPrototypeOf({
    width: T$.int(),
    height: T$.int(),
    bytesPerPixel: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.ImageDescriptor))));
  dart.setLibraryUri(ui.ImageDescriptor, I[198]);
  dart.setFieldSignature(ui.ImageDescriptor, () => dart.global.Object.setPrototypeOf({
    [_data$1]: {type: T$2.Uint8ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_width$]: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_height$]: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_rowBytes]: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_format]: {type: T$9.PixelFormatN(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.ImageDescriptor))));
  ui.FragmentProgram = class FragmentProgram extends core.Object {
    static fromAsset(assetKey) {
      if (assetKey == null) dart.nullFailed(I[203], 888, 51, "assetKey");
      return _engine.renderer.createFragmentProgram(assetKey);
    }
  };
  (ui.FragmentProgram.new = function() {
    ;
  }).prototype = ui.FragmentProgram.prototype;
  dart.addRtiResources(ui.FragmentProgram, ["ui|FragmentProgram"]);
  dart.setStaticMethodSignature(ui.FragmentProgram, () => ['fromAsset']);
  dart.setLibraryUri(ui.FragmentProgram, I[198]);
  ui.FragmentShader = class FragmentShader extends core.Object {};
  (ui.FragmentShader.new = function() {
    ;
  }).prototype = ui.FragmentShader.prototype;
  dart.addRtiResources(ui.FragmentShader, ["ui|FragmentShader", "ui|Shader"]);
  dart.setLibraryUri(ui.FragmentShader, I[198]);
  ui.Path = class Path extends core.Object {
    static ['_#new#tearOff']() {
      return ui.Path.new();
    }
    static new() {
      return _engine.renderer.createPath();
    }
    static ['_#from#tearOff'](source) {
      if (source == null) dart.nullFailed(I[204], 11, 26, "source");
      return ui.Path.from(source);
    }
    static from(source) {
      if (source == null) dart.nullFailed(I[204], 11, 26, "source");
      return _engine.renderer.copyPath(source);
    }
    static combine(operation, path1, path2) {
      if (operation == null) dart.nullFailed(I[204], 53, 37, "operation");
      if (path1 == null) dart.nullFailed(I[204], 53, 53, "path1");
      if (path2 == null) dart.nullFailed(I[204], 53, 65, "path2");
      return _engine.renderer.combinePaths(operation, path1, path2);
    }
  };
  (ui.Path[dart.mixinNew] = function() {
  }).prototype = ui.Path.prototype;
  dart.addRtiResources(ui.Path, ["ui|Path"]);
  dart.setStaticMethodSignature(ui.Path, () => ['new', 'from', 'combine']);
  dart.setLibraryUri(ui.Path, I[198]);
  ui.PathMetrics = class PathMetrics extends G$.IterableOfPathMetric() {};
  (ui.PathMetrics.new = function() {
    this.$ti = this.$ti || T$9.PathMetrics();
    dart.global.Object.getPrototypeOf(ui.PathMetrics).new.call(this);
    ;
  }).prototype = ui.PathMetrics.prototype;
  dart.addRtiResources(ui.PathMetrics, ["ui|PathMetrics"]);
  dart.setLibraryUri(ui.PathMetrics, I[198]);
  ui.PathMetricIterator = class PathMetricIterator extends core.Object {};
  (ui.PathMetricIterator.new = function() {
    ;
  }).prototype = ui.PathMetricIterator.prototype;
  dart.addRtiResources(ui.PathMetricIterator, ["ui|PathMetricIterator", "core|Iterator"]);
  dart.setLibraryUri(ui.PathMetricIterator, I[198]);
  ui.PathMetric = class PathMetric extends core.Object {};
  (ui.PathMetric.new = function() {
    ;
  }).prototype = ui.PathMetric.prototype;
  dart.addRtiResources(ui.PathMetric, ["ui|PathMetric"]);
  dart.setLibraryUri(ui.PathMetric, I[198]);
  var position$ = dart.privateName(ui, "Tangent.position");
  var vector$ = dart.privateName(ui, "Tangent.vector");
  ui.Tangent = class Tangent extends core.Object {
    get position() {
      return this[position$];
    }
    set position(value) {
      super.position = value;
    }
    get vector() {
      return this[vector$];
    }
    set vector(value) {
      super.vector = value;
    }
    static ['_#new#tearOff'](position, vector) {
      if (position == null) dart.nullFailed(I[205], 29, 22, "position");
      if (vector == null) dart.nullFailed(I[205], 29, 37, "vector");
      return new ui.Tangent.new(position, vector);
    }
    static fromAngle(position, angle) {
      if (position == null) dart.nullFailed(I[205], 30, 36, "position");
      if (angle == null) dart.nullFailed(I[205], 30, 53, "angle");
      return new ui.Tangent.new(position, new ui.Offset.new(math.cos(angle), math.sin(angle)));
    }
    static ['_#fromAngle#tearOff'](position, angle) {
      if (position == null) dart.nullFailed(I[205], 30, 36, "position");
      if (angle == null) dart.nullFailed(I[205], 30, 53, "angle");
      return ui.Tangent.fromAngle(position, angle);
    }
    get angle() {
      return -math.atan2(this.vector.dy, this.vector.dx);
    }
  };
  (ui.Tangent.new = function(position, vector) {
    if (position == null) dart.nullFailed(I[205], 29, 22, "position");
    if (vector == null) dart.nullFailed(I[205], 29, 37, "vector");
    this[position$] = position;
    this[vector$] = vector;
    ;
  }).prototype = ui.Tangent.prototype;
  dart.addRtiResources(ui.Tangent, ["ui|Tangent"]);
  dart.setStaticMethodSignature(ui.Tangent, () => ['fromAngle']);
  dart.setGetterSignature(ui.Tangent, () => dart.global.Object.setPrototypeOf({angle: T$.double()}, dart.getGetters(dart.global.Object.getPrototypeOf(ui.Tangent))));
  dart.setLibraryUri(ui.Tangent, I[198]);
  dart.setFieldSignature(ui.Tangent, () => dart.global.Object.setPrototypeOf({
    position: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    vector: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.Tangent))));
  ui.RootIsolateToken = class RootIsolateToken extends core.Object {
    static get instance() {
      dart.throw(new core.UnsupportedError.new("Root isolate not identifiable on web."));
    }
    static ['_#new#tearOff']() {
      return new ui.RootIsolateToken.new();
    }
  };
  (ui.RootIsolateToken.new = function() {
    ;
  }).prototype = ui.RootIsolateToken.prototype;
  dart.addRtiResources(ui.RootIsolateToken, ["ui|RootIsolateToken"]);
  dart.setStaticGetterSignature(ui.RootIsolateToken, () => ['instance']);
  dart.setLibraryUri(ui.RootIsolateToken, I[198]);
  ui.PlatformDispatcher = class PlatformDispatcher extends core.Object {
    static get instance() {
      return _engine.EnginePlatformDispatcher.instance;
    }
    setIsolateDebugName(name) {
      if (name == null) dart.nullFailed(I[206], 85, 35, "name");
    }
    requestDartPerformanceMode(mode) {
      if (mode == null) dart.nullFailed(I[206], 87, 55, "mode");
    }
    getPersistentIsolateData() {
      return null;
    }
    get initialLifecycleState() {
      return "";
    }
    get nativeSpellCheckServiceDefined() {
      return false;
    }
    get supportsShowingSystemContextMenu() {
      return false;
    }
    get brieflyShowPassword() {
      return true;
    }
    get onFrameDataChanged() {
      return null;
    }
    set onFrameDataChanged(callback) {
    }
  };
  (ui.PlatformDispatcher.new = function() {
    ;
  }).prototype = ui.PlatformDispatcher.prototype;
  dart.addRtiResources(ui.PlatformDispatcher, ["ui|PlatformDispatcher"]);
  dart.setMethodSignature(ui.PlatformDispatcher, () => dart.global.Object.setPrototypeOf({
    setIsolateDebugName: T$.StringTovoid(),
    requestDartPerformanceMode: T$9.DartPerformanceModeTovoid(),
    getPersistentIsolateData: T$9.VoidToByteDataN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PlatformDispatcher))));
  dart.setGetterSignature(ui.PlatformDispatcher, () => dart.global.Object.setPrototypeOf({
    initialLifecycleState: T$.String(),
    nativeSpellCheckServiceDefined: T$.bool(),
    supportsShowingSystemContextMenu: T$.bool(),
    brieflyShowPassword: T$.bool(),
    onFrameDataChanged: T$1.VoidToNvoid()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.PlatformDispatcher))));
  dart.setSetterSignature(ui.PlatformDispatcher, () => dart.global.Object.setPrototypeOf({onFrameDataChanged: T$1.VoidToNvoid()}, dart.getSetters(dart.global.Object.getPrototypeOf(ui.PlatformDispatcher))));
  dart.setStaticGetterSignature(ui.PlatformDispatcher, () => ['instance']);
  dart.setLibraryUri(ui.PlatformDispatcher, I[198]);
  ui.FramePhase = class FramePhase extends core._Enum {
    [_enumToString]() {
      return "FramePhase." + dart.str(this[_name$]);
    }
  };
  (ui.FramePhase.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 165, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 165, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.FramePhase).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.FramePhase.prototype;
  dart.addRtiResources(ui.FramePhase, ["ui|FramePhase"]);
  dart.setMethodSignature(ui.FramePhase, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.FramePhase))));
  dart.setLibraryUri(ui.FramePhase, I[198]);
  dart.setStaticFieldSignature(ui.FramePhase, () => ['values', 'vsyncStart', 'buildStart', 'buildFinish', 'rasterStart', 'rasterFinish', 'rasterFinishWallTime']);
  dart.defineLazy(ui.FramePhase, {
    /*ui.FramePhase.values*/get values() {
      return C[610] || CT.C610;
    },
    /*ui.FramePhase.vsyncStart*/get vsyncStart() {
      return C[611] || CT.C611;
    },
    /*ui.FramePhase.buildStart*/get buildStart() {
      return C[612] || CT.C612;
    },
    /*ui.FramePhase.buildFinish*/get buildFinish() {
      return C[613] || CT.C613;
    },
    /*ui.FramePhase.rasterStart*/get rasterStart() {
      return C[614] || CT.C614;
    },
    /*ui.FramePhase.rasterFinish*/get rasterFinish() {
      return C[615] || CT.C615;
    },
    /*ui.FramePhase.rasterFinishWallTime*/get rasterFinishWallTime() {
      return C[616] || CT.C616;
    }
  }, false);
  ui._FrameTimingInfo = class _FrameTimingInfo extends core._Enum {
    [_enumToString]() {
      return "_FrameTimingInfo." + dart.str(this[_name$]);
    }
  };
  (ui._FrameTimingInfo.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 174, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 174, 6, "#name");
    dart.global.Object.getPrototypeOf(ui._FrameTimingInfo).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui._FrameTimingInfo.prototype;
  dart.addRtiResources(ui._FrameTimingInfo, ["ui|_FrameTimingInfo"]);
  dart.setMethodSignature(ui._FrameTimingInfo, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui._FrameTimingInfo))));
  dart.setLibraryUri(ui._FrameTimingInfo, I[198]);
  dart.setStaticFieldSignature(ui._FrameTimingInfo, () => ['values', 'layerCacheCount', 'layerCacheBytes', 'pictureCacheCount', 'pictureCacheBytes', 'frameNumber']);
  dart.defineLazy(ui._FrameTimingInfo, {
    /*ui._FrameTimingInfo.values*/get values() {
      return C[617] || CT.C617;
    },
    /*ui._FrameTimingInfo.layerCacheCount*/get layerCacheCount() {
      return C[618] || CT.C618;
    },
    /*ui._FrameTimingInfo.layerCacheBytes*/get layerCacheBytes() {
      return C[619] || CT.C619;
    },
    /*ui._FrameTimingInfo.pictureCacheCount*/get pictureCacheCount() {
      return C[620] || CT.C620;
    },
    /*ui._FrameTimingInfo.pictureCacheBytes*/get pictureCacheBytes() {
      return C[621] || CT.C621;
    },
    /*ui._FrameTimingInfo.frameNumber*/get frameNumber() {
      return C[622] || CT.C622;
    }
  }, false);
  var _rawDuration = dart.privateName(ui, "_rawDuration");
  var _rawInfo = dart.privateName(ui, "_rawInfo");
  var _formatMS = dart.privateName(ui, "_formatMS");
  ui.FrameTiming = class FrameTiming extends core.Object {
    static new(opts) {
      let vsyncStart = opts && 'vsyncStart' in opts ? opts.vsyncStart : null;
      if (vsyncStart == null) dart.nullFailed(I[206], 184, 18, "vsyncStart");
      let buildStart = opts && 'buildStart' in opts ? opts.buildStart : null;
      if (buildStart == null) dart.nullFailed(I[206], 185, 18, "buildStart");
      let buildFinish = opts && 'buildFinish' in opts ? opts.buildFinish : null;
      if (buildFinish == null) dart.nullFailed(I[206], 186, 18, "buildFinish");
      let rasterStart = opts && 'rasterStart' in opts ? opts.rasterStart : null;
      if (rasterStart == null) dart.nullFailed(I[206], 187, 18, "rasterStart");
      let rasterFinish = opts && 'rasterFinish' in opts ? opts.rasterFinish : null;
      if (rasterFinish == null) dart.nullFailed(I[206], 188, 18, "rasterFinish");
      let rasterFinishWallTime = opts && 'rasterFinishWallTime' in opts ? opts.rasterFinishWallTime : null;
      if (rasterFinishWallTime == null) dart.nullFailed(I[206], 189, 18, "rasterFinishWallTime");
      let layerCacheCount = opts && 'layerCacheCount' in opts ? opts.layerCacheCount : 0;
      if (layerCacheCount == null) dart.nullFailed(I[206], 190, 9, "layerCacheCount");
      let layerCacheBytes = opts && 'layerCacheBytes' in opts ? opts.layerCacheBytes : 0;
      if (layerCacheBytes == null) dart.nullFailed(I[206], 191, 9, "layerCacheBytes");
      let pictureCacheCount = opts && 'pictureCacheCount' in opts ? opts.pictureCacheCount : 0;
      if (pictureCacheCount == null) dart.nullFailed(I[206], 192, 9, "pictureCacheCount");
      let pictureCacheBytes = opts && 'pictureCacheBytes' in opts ? opts.pictureCacheBytes : 0;
      if (pictureCacheBytes == null) dart.nullFailed(I[206], 193, 9, "pictureCacheBytes");
      let frameNumber = opts && 'frameNumber' in opts ? opts.frameNumber : 1;
      if (frameNumber == null) dart.nullFailed(I[206], 194, 9, "frameNumber");
      return new ui.FrameTiming.__(G.JSArrayOfint().of([vsyncStart, buildStart, buildFinish, rasterStart, rasterFinish, rasterFinishWallTime, layerCacheCount, layerCacheBytes, pictureCacheCount, pictureCacheBytes, frameNumber]));
    }
    static ['_#new#tearOff'](opts) {
      let vsyncStart = opts && 'vsyncStart' in opts ? opts.vsyncStart : null;
      if (vsyncStart == null) dart.nullFailed(I[206], 184, 18, "vsyncStart");
      let buildStart = opts && 'buildStart' in opts ? opts.buildStart : null;
      if (buildStart == null) dart.nullFailed(I[206], 185, 18, "buildStart");
      let buildFinish = opts && 'buildFinish' in opts ? opts.buildFinish : null;
      if (buildFinish == null) dart.nullFailed(I[206], 186, 18, "buildFinish");
      let rasterStart = opts && 'rasterStart' in opts ? opts.rasterStart : null;
      if (rasterStart == null) dart.nullFailed(I[206], 187, 18, "rasterStart");
      let rasterFinish = opts && 'rasterFinish' in opts ? opts.rasterFinish : null;
      if (rasterFinish == null) dart.nullFailed(I[206], 188, 18, "rasterFinish");
      let rasterFinishWallTime = opts && 'rasterFinishWallTime' in opts ? opts.rasterFinishWallTime : null;
      if (rasterFinishWallTime == null) dart.nullFailed(I[206], 189, 18, "rasterFinishWallTime");
      let layerCacheCount = opts && 'layerCacheCount' in opts ? opts.layerCacheCount : 0;
      if (layerCacheCount == null) dart.nullFailed(I[206], 190, 9, "layerCacheCount");
      let layerCacheBytes = opts && 'layerCacheBytes' in opts ? opts.layerCacheBytes : 0;
      if (layerCacheBytes == null) dart.nullFailed(I[206], 191, 9, "layerCacheBytes");
      let pictureCacheCount = opts && 'pictureCacheCount' in opts ? opts.pictureCacheCount : 0;
      if (pictureCacheCount == null) dart.nullFailed(I[206], 192, 9, "pictureCacheCount");
      let pictureCacheBytes = opts && 'pictureCacheBytes' in opts ? opts.pictureCacheBytes : 0;
      if (pictureCacheBytes == null) dart.nullFailed(I[206], 193, 9, "pictureCacheBytes");
      let frameNumber = opts && 'frameNumber' in opts ? opts.frameNumber : 1;
      if (frameNumber == null) dart.nullFailed(I[206], 194, 9, "frameNumber");
      return ui.FrameTiming.new({vsyncStart: vsyncStart, buildStart: buildStart, buildFinish: buildFinish, rasterStart: rasterStart, rasterFinish: rasterFinish, rasterFinishWallTime: rasterFinishWallTime, layerCacheCount: layerCacheCount, layerCacheBytes: layerCacheBytes, pictureCacheCount: pictureCacheCount, pictureCacheBytes: pictureCacheBytes, frameNumber: frameNumber});
    }
    static ['_#_#tearOff'](_data) {
      if (_data == null) dart.nullFailed(I[206], 211, 22, "_data");
      return new ui.FrameTiming.__(_data);
    }
    timestampInMicroseconds(phase) {
      if (phase == null) dart.nullFailed(I[206], 216, 42, "phase");
      return this[_data$1][$_get](phase.index);
    }
    [_rawDuration](phase) {
      if (phase == null) dart.nullFailed(I[206], 218, 36, "phase");
      return new core.Duration.new({microseconds: this[_data$1][$_get](phase.index)});
    }
    [_rawInfo](info) {
      if (info == null) dart.nullFailed(I[206], 220, 33, "info");
      return this[_data$1][$_get](dart.notNull(ui.FramePhase.values[$length]) + dart.notNull(info.index));
    }
    get buildDuration() {
      return this[_rawDuration](ui.FramePhase.buildFinish)['-'](this[_rawDuration](ui.FramePhase.buildStart));
    }
    get rasterDuration() {
      return this[_rawDuration](ui.FramePhase.rasterFinish)['-'](this[_rawDuration](ui.FramePhase.rasterStart));
    }
    get vsyncOverhead() {
      return this[_rawDuration](ui.FramePhase.buildStart)['-'](this[_rawDuration](ui.FramePhase.vsyncStart));
    }
    get totalSpan() {
      return this[_rawDuration](ui.FramePhase.rasterFinish)['-'](this[_rawDuration](ui.FramePhase.vsyncStart));
    }
    get layerCacheCount() {
      return this[_rawInfo](ui._FrameTimingInfo.layerCacheCount);
    }
    get layerCacheBytes() {
      return this[_rawInfo](ui._FrameTimingInfo.layerCacheBytes);
    }
    get layerCacheMegabytes() {
      return dart.notNull(this.layerCacheBytes) / 1024.0 / 1024.0;
    }
    get pictureCacheCount() {
      return this[_rawInfo](ui._FrameTimingInfo.pictureCacheCount);
    }
    get pictureCacheBytes() {
      return this[_rawInfo](ui._FrameTimingInfo.pictureCacheBytes);
    }
    get pictureCacheMegabytes() {
      return dart.notNull(this.pictureCacheBytes) / 1024.0 / 1024.0;
    }
    get frameNumber() {
      return this[_data$1][$last];
    }
    [_formatMS](duration) {
      if (duration == null) dart.nullFailed(I[206], 249, 29, "duration");
      return dart.strSafe(dart.notNull(duration.inMicroseconds) * 0.001) + "ms";
    }
    toString() {
      return dart.str(dart.runtimeType(this)) + "(buildDuration: " + dart.str(this[_formatMS](this.buildDuration)) + ", " + "rasterDuration: " + dart.str(this[_formatMS](this.rasterDuration)) + ", " + "vsyncOverhead: " + dart.str(this[_formatMS](this.vsyncOverhead)) + ", " + "totalSpan: " + dart.str(this[_formatMS](this.totalSpan)) + ", " + "layerCacheCount: " + dart.str(this.layerCacheCount) + ", " + "layerCacheBytes: " + dart.str(this.layerCacheBytes) + ", " + "pictureCacheCount: " + dart.str(this.pictureCacheCount) + ", " + "pictureCacheBytes: " + dart.str(this.pictureCacheBytes) + ", " + "frameNumber: " + dart.str(this[_data$1][$last]) + ")";
    }
  };
  (ui.FrameTiming.__ = function(_data) {
    if (_data == null) dart.nullFailed(I[206], 211, 22, "_data");
    this[_data$1] = _data;
    if (!(_data[$length] == ui.FrameTiming._dataLength)) dart.assertFailed(null, I[206], 212, 16, "_data.length == _dataLength");
    ;
  }).prototype = ui.FrameTiming.prototype;
  dart.addRtiResources(ui.FrameTiming, ["ui|FrameTiming"]);
  dart.setMethodSignature(ui.FrameTiming, () => dart.global.Object.setPrototypeOf({
    timestampInMicroseconds: T$9.FramePhaseToint(),
    [_rawDuration]: T$9.FramePhaseToDuration(),
    [_rawInfo]: T$9._FrameTimingInfoToint(),
    [_formatMS]: T$9.DurationToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.FrameTiming))));
  dart.setStaticMethodSignature(ui.FrameTiming, () => ['new']);
  dart.setGetterSignature(ui.FrameTiming, () => dart.global.Object.setPrototypeOf({
    buildDuration: T$8.Duration(),
    rasterDuration: T$8.Duration(),
    vsyncOverhead: T$8.Duration(),
    totalSpan: T$8.Duration(),
    layerCacheCount: T$.int(),
    layerCacheBytes: T$.int(),
    layerCacheMegabytes: T$.double(),
    pictureCacheCount: T$.int(),
    pictureCacheBytes: T$.int(),
    pictureCacheMegabytes: T$.double(),
    frameNumber: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.FrameTiming))));
  dart.setLibraryUri(ui.FrameTiming, I[198]);
  dart.setFieldSignature(ui.FrameTiming, () => dart.global.Object.setPrototypeOf({[_data$1]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.FrameTiming))));
  dart.setStaticFieldSignature(ui.FrameTiming, () => ['_dataLength']);
  dart.defineExtensionMethods(ui.FrameTiming, ['toString']);
  dart.defineLazy(ui.FrameTiming, {
    /*ui.FrameTiming._dataLength*/get _dataLength() {
      return dart.notNull(ui.FramePhase.values[$length]) + dart.notNull(ui._FrameTimingInfo.values[$length]);
    }
  }, false);
  ui.AppLifecycleState = class AppLifecycleState extends core._Enum {
    [_enumToString]() {
      return "AppLifecycleState." + dart.str(this[_name$]);
    }
  };
  (ui.AppLifecycleState.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 265, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 265, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.AppLifecycleState).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.AppLifecycleState.prototype;
  dart.addRtiResources(ui.AppLifecycleState, ["ui|AppLifecycleState"]);
  dart.setMethodSignature(ui.AppLifecycleState, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.AppLifecycleState))));
  dart.setLibraryUri(ui.AppLifecycleState, I[198]);
  dart.setStaticFieldSignature(ui.AppLifecycleState, () => ['values', 'detached', 'resumed', 'inactive', 'hidden', 'paused']);
  dart.defineLazy(ui.AppLifecycleState, {
    /*ui.AppLifecycleState.values*/get values() {
      return C[623] || CT.C623;
    },
    /*ui.AppLifecycleState.detached*/get detached() {
      return C[624] || CT.C624;
    },
    /*ui.AppLifecycleState.resumed*/get resumed() {
      return C[625] || CT.C625;
    },
    /*ui.AppLifecycleState.inactive*/get inactive() {
      return C[626] || CT.C626;
    },
    /*ui.AppLifecycleState.hidden*/get hidden() {
      return C[627] || CT.C627;
    },
    /*ui.AppLifecycleState.paused*/get paused() {
      return C[628] || CT.C628;
    }
  }, false);
  ui.AppExitResponse = class AppExitResponse extends core._Enum {
    [_enumToString]() {
      return "AppExitResponse." + dart.str(this[_name$]);
    }
  };
  (ui.AppExitResponse.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 273, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 273, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.AppExitResponse).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.AppExitResponse.prototype;
  dart.addRtiResources(ui.AppExitResponse, ["ui|AppExitResponse"]);
  dart.setMethodSignature(ui.AppExitResponse, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.AppExitResponse))));
  dart.setLibraryUri(ui.AppExitResponse, I[198]);
  dart.setStaticFieldSignature(ui.AppExitResponse, () => ['values', 'exit', 'cancel']);
  dart.defineLazy(ui.AppExitResponse, {
    /*ui.AppExitResponse.values*/get values() {
      return C[629] || CT.C629;
    },
    /*ui.AppExitResponse.exit*/get exit() {
      return C[630] || CT.C630;
    },
    /*ui.AppExitResponse.cancel*/get cancel() {
      return C[631] || CT.C631;
    }
  }, false);
  ui.AppExitType = class AppExitType extends core._Enum {
    [_enumToString]() {
      return "AppExitType." + dart.str(this[_name$]);
    }
  };
  (ui.AppExitType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 278, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 278, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.AppExitType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.AppExitType.prototype;
  dart.addRtiResources(ui.AppExitType, ["ui|AppExitType"]);
  dart.setMethodSignature(ui.AppExitType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.AppExitType))));
  dart.setLibraryUri(ui.AppExitType, I[198]);
  dart.setStaticFieldSignature(ui.AppExitType, () => ['values', 'cancelable', 'required']);
  dart.defineLazy(ui.AppExitType, {
    /*ui.AppExitType.values*/get values() {
      return C[632] || CT.C632;
    },
    /*ui.AppExitType.cancelable*/get cancelable() {
      return C[633] || CT.C633;
    },
    /*ui.AppExitType.required*/get required() {
      return C[634] || CT.C634;
    }
  }, false);
  var ViewPadding_bottom = dart.privateName(_engine, "ViewPadding.bottom");
  var ViewPadding_right = dart.privateName(_engine, "ViewPadding.right");
  var ViewPadding_top = dart.privateName(_engine, "ViewPadding.top");
  var ViewPadding_left = dart.privateName(_engine, "ViewPadding.left");
  ui.ViewPadding = class ViewPadding extends core.Object {
    static ['_#_#tearOff'](opts) {
      let left = opts && 'left' in opts ? opts.left : null;
      if (left == null) dart.nullFailed(I[206], 285, 24, "left");
      let top = opts && 'top' in opts ? opts.top : null;
      if (top == null) dart.nullFailed(I[206], 286, 23, "top");
      let right = opts && 'right' in opts ? opts.right : null;
      if (right == null) dart.nullFailed(I[206], 287, 23, "right");
      let bottom = opts && 'bottom' in opts ? opts.bottom : null;
      if (bottom == null) dart.nullFailed(I[206], 288, 23, "bottom");
      return new _engine.ViewPadding.new({left: left, top: top, right: right, bottom: bottom});
    }
    toString() {
      return "ViewPadding(left: " + dart.str(this.left) + ", top: " + dart.str(this.top) + ", right: " + dart.str(this.right) + ", bottom: " + dart.str(this.bottom) + ")";
    }
  };
  (ui.ViewPadding[dart.mixinNew] = function() {
  }).prototype = ui.ViewPadding.prototype;
  dart.addRtiResources(ui.ViewPadding, ["ui|ViewPadding"]);
  dart.setStaticMethodSignature(ui.ViewPadding, () => ['__']);
  dart.setLibraryUri(ui.ViewPadding, I[198]);
  dart.setStaticFieldSignature(ui.ViewPadding, () => ['zero']);
  dart.defineExtensionMethods(ui.ViewPadding, ['toString']);
  dart.defineLazy(ui.ViewPadding, {
    /*ui.ViewPadding.zero*/get zero() {
      return C[635] || CT.C635;
    }
  }, false);
  ui.ViewConstraints = class ViewConstraints extends core.Object {
    static ['_#new#tearOff'](opts) {
      let minWidth = opts && 'minWidth' in opts ? opts.minWidth : 0;
      if (minWidth == null) dart.nullFailed(I[206], 305, 12, "minWidth");
      let maxWidth = opts && 'maxWidth' in opts ? opts.maxWidth : 1 / 0;
      if (maxWidth == null) dart.nullFailed(I[206], 306, 12, "maxWidth");
      let minHeight = opts && 'minHeight' in opts ? opts.minHeight : 0;
      if (minHeight == null) dart.nullFailed(I[206], 307, 12, "minHeight");
      let maxHeight = opts && 'maxHeight' in opts ? opts.maxHeight : 1 / 0;
      if (maxHeight == null) dart.nullFailed(I[206], 308, 12, "maxHeight");
      return new _engine.ViewConstraints.new({minWidth: minWidth, maxWidth: maxWidth, minHeight: minHeight, maxHeight: maxHeight});
    }
    static ['_#tight#tearOff'](size) {
      if (size == null) dart.nullFailed(I[206], 311, 38, "size");
      return new _engine.ViewConstraints.tight(size);
    }
  };
  (ui.ViewConstraints[dart.mixinNew] = function() {
  }).prototype = ui.ViewConstraints.prototype;
  dart.addRtiResources(ui.ViewConstraints, ["ui|ViewConstraints"]);
  dart.setStaticMethodSignature(ui.ViewConstraints, () => ['new', 'tight']);
  dart.setLibraryUri(ui.ViewConstraints, I[198]);
  var bounds$ = dart.privateName(ui, "DisplayFeature.bounds");
  var type$3 = dart.privateName(ui, "DisplayFeature.type");
  var state$ = dart.privateName(ui, "DisplayFeature.state");
  ui.DisplayFeature = class DisplayFeature extends core.Object {
    get bounds() {
      return this[bounds$];
    }
    set bounds(value) {
      super.bounds = value;
    }
    get type() {
      return this[type$3];
    }
    set type(value) {
      super.type = value;
    }
    get state() {
      return this[state$];
    }
    set state(value) {
      super.state = value;
    }
    static ['_#new#tearOff'](opts) {
      let bounds = opts && 'bounds' in opts ? opts.bounds : null;
      if (bounds == null) dart.nullFailed(I[206], 330, 19, "bounds");
      let type = opts && 'type' in opts ? opts.type : null;
      if (type == null) dart.nullFailed(I[206], 331, 19, "type");
      let state = opts && 'state' in opts ? opts.state : null;
      if (state == null) dart.nullFailed(I[206], 332, 19, "state");
      return new ui.DisplayFeature.new({bounds: bounds, type: type, state: state});
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$9.DisplayFeature()[_is](other) && dart.equals(this.bounds, other.bounds) && this.type == other.type && this.state == other.state;
    }
    get hashCode() {
      return core.Object.hash(this.bounds, this.type, this.state);
    }
    toString() {
      return "DisplayFeature(rect: " + dart.str(this.bounds) + ", type: " + dart.str(this.type) + ", state: " + dart.str(this.state) + ")";
    }
  };
  (ui.DisplayFeature.new = function(opts) {
    let bounds = opts && 'bounds' in opts ? opts.bounds : null;
    if (bounds == null) dart.nullFailed(I[206], 330, 19, "bounds");
    let type = opts && 'type' in opts ? opts.type : null;
    if (type == null) dart.nullFailed(I[206], 331, 19, "type");
    let state = opts && 'state' in opts ? opts.state : null;
    if (state == null) dart.nullFailed(I[206], 332, 19, "state");
    this[bounds$] = bounds;
    this[type$3] = type;
    this[state$] = state;
    ;
  }).prototype = ui.DisplayFeature.prototype;
  dart.addRtiResources(ui.DisplayFeature, ["ui|DisplayFeature"]);
  dart.setLibraryUri(ui.DisplayFeature, I[198]);
  dart.setFieldSignature(ui.DisplayFeature, () => dart.global.Object.setPrototypeOf({
    bounds: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    type: {type: T$9.DisplayFeatureType(), isConst: false, isFinal: true, libraryUri: I[198]},
    state: {type: T$9.DisplayFeatureState(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.DisplayFeature))));
  dart.defineExtensionMethods(ui.DisplayFeature, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.DisplayFeature, ['hashCode']);
  ui.DisplayFeatureType = class DisplayFeatureType extends core._Enum {
    [_enumToString]() {
      return "DisplayFeatureType." + dart.str(this[_name$]);
    }
  };
  (ui.DisplayFeatureType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 360, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 360, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.DisplayFeatureType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.DisplayFeatureType.prototype;
  dart.addRtiResources(ui.DisplayFeatureType, ["ui|DisplayFeatureType"]);
  dart.setMethodSignature(ui.DisplayFeatureType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.DisplayFeatureType))));
  dart.setLibraryUri(ui.DisplayFeatureType, I[198]);
  dart.setStaticFieldSignature(ui.DisplayFeatureType, () => ['values', 'unknown', 'fold', 'hinge', 'cutout']);
  dart.defineLazy(ui.DisplayFeatureType, {
    /*ui.DisplayFeatureType.values*/get values() {
      return C[636] || CT.C636;
    },
    /*ui.DisplayFeatureType.unknown*/get unknown() {
      return C[637] || CT.C637;
    },
    /*ui.DisplayFeatureType.fold*/get fold() {
      return C[638] || CT.C638;
    },
    /*ui.DisplayFeatureType.hinge*/get hinge() {
      return C[639] || CT.C639;
    },
    /*ui.DisplayFeatureType.cutout*/get cutout() {
      return C[640] || CT.C640;
    }
  }, false);
  ui.DisplayFeatureState = class DisplayFeatureState extends core._Enum {
    [_enumToString]() {
      return "DisplayFeatureState." + dart.str(this[_name$]);
    }
  };
  (ui.DisplayFeatureState.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 367, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 367, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.DisplayFeatureState).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.DisplayFeatureState.prototype;
  dart.addRtiResources(ui.DisplayFeatureState, ["ui|DisplayFeatureState"]);
  dart.setMethodSignature(ui.DisplayFeatureState, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.DisplayFeatureState))));
  dart.setLibraryUri(ui.DisplayFeatureState, I[198]);
  dart.setStaticFieldSignature(ui.DisplayFeatureState, () => ['values', 'unknown', 'postureFlat', 'postureHalfOpened', 'postureFlipped']);
  dart.defineLazy(ui.DisplayFeatureState, {
    /*ui.DisplayFeatureState.values*/get values() {
      return C[641] || CT.C641;
    },
    /*ui.DisplayFeatureState.unknown*/get unknown() {
      return C[642] || CT.C642;
    },
    /*ui.DisplayFeatureState.postureFlat*/get postureFlat() {
      return C[643] || CT.C643;
    },
    /*ui.DisplayFeatureState.postureHalfOpened*/get postureHalfOpened() {
      return C[644] || CT.C644;
    },
    /*ui.DisplayFeatureState.postureFlipped*/get postureFlipped() {
      return C[645] || CT.C645;
    }
  }, false);
  var _languageCode$ = dart.privateName(ui, "Locale._languageCode");
  var scriptCode$ = dart.privateName(ui, "Locale.scriptCode");
  var _countryCode$ = dart.privateName(ui, "Locale._countryCode");
  var _languageCode = dart.privateName(ui, "_languageCode");
  var _countryCode = dart.privateName(ui, "_countryCode");
  var _rawToString = dart.privateName(ui, "_rawToString");
  ui.Locale = class Locale extends core.Object {
    get [_languageCode]() {
      return this[_languageCode$];
    }
    set [_languageCode](value) {
      super[_languageCode] = value;
    }
    get scriptCode() {
      return this[scriptCode$];
    }
    set scriptCode(value) {
      super.scriptCode = value;
    }
    get [_countryCode]() {
      return this[_countryCode$];
    }
    set [_countryCode](value) {
      super[_countryCode] = value;
    }
    static ['_#new#tearOff'](_languageCode, _countryCode = null) {
      if (_languageCode == null) dart.nullFailed(I[206], 376, 10, "_languageCode");
      return new ui.Locale.new(_languageCode, _countryCode);
    }
    static ['_#fromSubtags#tearOff'](opts) {
      let languageCode = opts && 'languageCode' in opts ? opts.languageCode : "und";
      if (languageCode == null) dart.nullFailed(I[206], 382, 12, "languageCode");
      let scriptCode = opts && 'scriptCode' in opts ? opts.scriptCode : null;
      let countryCode = opts && 'countryCode' in opts ? opts.countryCode : null;
      return new ui.Locale.fromSubtags({languageCode: languageCode, scriptCode: scriptCode, countryCode: countryCode});
    }
    get languageCode() {
      let t$36450;
      t$36450 = ui.Locale._deprecatedLanguageSubtagMap[$_get](this[_languageCode]);
      return t$36450 == null ? this[_languageCode] : t$36450;
    }
    get countryCode() {
      let t$36450;
      t$36450 = ui.Locale._deprecatedRegionSubtagMap[$_get](this[_countryCode]);
      return t$36450 == null ? this[_countryCode] : t$36450;
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      return T$9.Locale()[_is](other) && other.languageCode == this.languageCode && other.scriptCode == this.scriptCode && other.countryCode == this.countryCode;
    }
    get hashCode() {
      return core.Object.hash(this.languageCode, this.scriptCode, this.countryCode);
    }
    toString() {
      return this[_rawToString]("_");
    }
    toLanguageTag() {
      return this[_rawToString]("-");
    }
    [_rawToString](separator) {
      if (separator == null) dart.nullFailed(I[206], 514, 30, "separator");
      let out = new core.StringBuffer.new(this.languageCode);
      if (this.scriptCode != null) {
        out.write(dart.str(separator) + dart.str(this.scriptCode));
      }
      if (this[_countryCode] != null) {
        out.write(dart.str(separator) + dart.str(this.countryCode));
      }
      return dart.toString(out);
    }
  };
  (ui.Locale.new = function(_languageCode, _countryCode = null) {
    if (_languageCode == null) dart.nullFailed(I[206], 376, 10, "_languageCode");
    this[_languageCode$] = _languageCode;
    this[_countryCode$] = _countryCode;
    if (!(_languageCode !== "")) dart.assertFailed(null, I[206], 378, 16, "_languageCode != ''");
    this[scriptCode$] = null;
    ;
  }).prototype = ui.Locale.prototype;
  (ui.Locale.fromSubtags = function(opts) {
    let languageCode = opts && 'languageCode' in opts ? opts.languageCode : "und";
    if (languageCode == null) dart.nullFailed(I[206], 382, 12, "languageCode");
    let scriptCode = opts && 'scriptCode' in opts ? opts.scriptCode : null;
    let countryCode = opts && 'countryCode' in opts ? opts.countryCode : null;
    this[scriptCode$] = scriptCode;
    if (!(languageCode !== "")) dart.assertFailed(null, I[206], 385, 16, "languageCode != ''");
    this[_languageCode$] = languageCode;
    if (!(scriptCode !== "")) dart.assertFailed(null, I[206], 387, 16, "scriptCode != ''");
    if (!(countryCode !== "")) dart.assertFailed(null, I[206], 388, 16, "countryCode != ''");
    this[_countryCode$] = countryCode;
    ;
  }).prototype = ui.Locale.prototype;
  dart.addRtiResources(ui.Locale, ["ui|Locale"]);
  dart.setMethodSignature(ui.Locale, () => dart.global.Object.setPrototypeOf({
    toLanguageTag: T$.VoidToString(),
    [_rawToString]: T$.StringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Locale))));
  dart.setGetterSignature(ui.Locale, () => dart.global.Object.setPrototypeOf({
    languageCode: T$.String(),
    countryCode: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.Locale))));
  dart.setLibraryUri(ui.Locale, I[198]);
  dart.setFieldSignature(ui.Locale, () => dart.global.Object.setPrototypeOf({
    [_languageCode]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    scriptCode: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_countryCode]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.Locale))));
  dart.setStaticFieldSignature(ui.Locale, () => ['_deprecatedLanguageSubtagMap', '_deprecatedRegionSubtagMap']);
  dart.defineExtensionMethods(ui.Locale, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.Locale, ['hashCode']);
  dart.defineLazy(ui.Locale, {
    /*ui.Locale._deprecatedLanguageSubtagMap*/get _deprecatedLanguageSubtagMap() {
      return C[646] || CT.C646;
    },
    /*ui.Locale._deprecatedRegionSubtagMap*/get _deprecatedRegionSubtagMap() {
      return C[647] || CT.C647;
    }
  }, false);
  ui.DartPerformanceMode = class DartPerformanceMode extends core._Enum {
    [_enumToString]() {
      return "DartPerformanceMode." + dart.str(this[_name$]);
    }
  };
  (ui.DartPerformanceMode.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 526, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 526, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.DartPerformanceMode).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.DartPerformanceMode.prototype;
  dart.addRtiResources(ui.DartPerformanceMode, ["ui|DartPerformanceMode"]);
  dart.setMethodSignature(ui.DartPerformanceMode, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.DartPerformanceMode))));
  dart.setLibraryUri(ui.DartPerformanceMode, I[198]);
  dart.setStaticFieldSignature(ui.DartPerformanceMode, () => ['values', 'balanced', 'latency', 'throughput', 'memory']);
  dart.defineLazy(ui.DartPerformanceMode, {
    /*ui.DartPerformanceMode.values*/get values() {
      return C[648] || CT.C648;
    },
    /*ui.DartPerformanceMode.balanced*/get balanced() {
      return C[649] || CT.C649;
    },
    /*ui.DartPerformanceMode.latency*/get latency() {
      return C[650] || CT.C650;
    },
    /*ui.DartPerformanceMode.throughput*/get throughput() {
      return C[651] || CT.C651;
    },
    /*ui.DartPerformanceMode.memory*/get memory() {
      return C[652] || CT.C652;
    }
  }, false);
  var type$4 = dart.privateName(ui, "SemanticsActionEvent.type");
  var viewId$ = dart.privateName(ui, "SemanticsActionEvent.viewId");
  var nodeId$ = dart.privateName(ui, "SemanticsActionEvent.nodeId");
  var $arguments$0 = dart.privateName(ui, "SemanticsActionEvent.arguments");
  ui.SemanticsActionEvent = class SemanticsActionEvent extends core.Object {
    get type() {
      return this[type$4];
    }
    set type(value) {
      super.type = value;
    }
    get viewId() {
      return this[viewId$];
    }
    set viewId(value) {
      super.viewId = value;
    }
    get nodeId() {
      return this[nodeId$];
    }
    set nodeId(value) {
      super.nodeId = value;
    }
    get arguments() {
      return this[$arguments$0];
    }
    set arguments(value) {
      super.arguments = value;
    }
    static ['_#new#tearOff'](opts) {
      let type = opts && 'type' in opts ? opts.type : null;
      if (type == null) dart.nullFailed(I[206], 535, 19, "type");
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      if (viewId == null) dart.nullFailed(I[206], 536, 19, "viewId");
      let nodeId = opts && 'nodeId' in opts ? opts.nodeId : null;
      if (nodeId == null) dart.nullFailed(I[206], 537, 19, "nodeId");
      let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
      return new ui.SemanticsActionEvent.new({type: type, viewId: viewId, nodeId: nodeId, arguments: $arguments});
    }
    copyWith(opts) {
      let t$36452, t$36452$, t$36452$0;
      let type = opts && 'type' in opts ? opts.type : null;
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      let nodeId = opts && 'nodeId' in opts ? opts.nodeId : null;
      let $arguments = opts && 'arguments' in opts ? opts.arguments : C[653] || CT.C653;
      return new ui.SemanticsActionEvent.new({type: (t$36452 = type, t$36452 == null ? this.type : t$36452), viewId: (t$36452$ = viewId, t$36452$ == null ? this.viewId : t$36452$), nodeId: (t$36452$0 = nodeId, t$36452$0 == null ? this.nodeId : t$36452$0), arguments: dart.equals($arguments, ui.SemanticsActionEvent._noArgumentPlaceholder) ? this.arguments : $arguments});
    }
    toString() {
      return "SemanticsActionEvent(" + dart.str(this.type) + ", view: " + dart.str(this.viewId) + ", node: " + dart.str(this.nodeId) + ")";
    }
  };
  (ui.SemanticsActionEvent.new = function(opts) {
    let type = opts && 'type' in opts ? opts.type : null;
    if (type == null) dart.nullFailed(I[206], 535, 19, "type");
    let viewId = opts && 'viewId' in opts ? opts.viewId : null;
    if (viewId == null) dart.nullFailed(I[206], 536, 19, "viewId");
    let nodeId = opts && 'nodeId' in opts ? opts.nodeId : null;
    if (nodeId == null) dart.nullFailed(I[206], 537, 19, "nodeId");
    let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
    this[type$4] = type;
    this[viewId$] = viewId;
    this[nodeId$] = nodeId;
    this[$arguments$0] = $arguments;
    ;
  }).prototype = ui.SemanticsActionEvent.prototype;
  dart.addRtiResources(ui.SemanticsActionEvent, ["ui|SemanticsActionEvent"]);
  dart.setMethodSignature(ui.SemanticsActionEvent, () => dart.global.Object.setPrototypeOf({copyWith: T$9.__ToSemanticsActionEvent()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.SemanticsActionEvent))));
  dart.setLibraryUri(ui.SemanticsActionEvent, I[198]);
  dart.setFieldSignature(ui.SemanticsActionEvent, () => dart.global.Object.setPrototypeOf({
    type: {type: T$9.SemanticsAction(), isConst: false, isFinal: true, libraryUri: I[198]},
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    nodeId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    arguments: {type: T$.ObjectN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.SemanticsActionEvent))));
  dart.setStaticFieldSignature(ui.SemanticsActionEvent, () => ['_noArgumentPlaceholder']);
  dart.defineExtensionMethods(ui.SemanticsActionEvent, ['toString']);
  dart.defineLazy(ui.SemanticsActionEvent, {
    /*ui.SemanticsActionEvent._noArgumentPlaceholder*/get _noArgumentPlaceholder() {
      return C[653] || CT.C653;
    }
  }, false);
  var viewId$0 = dart.privateName(ui, "ViewFocusEvent.viewId");
  var state$0 = dart.privateName(ui, "ViewFocusEvent.state");
  var direction$ = dart.privateName(ui, "ViewFocusEvent.direction");
  ui.ViewFocusEvent = class ViewFocusEvent extends core.Object {
    get viewId() {
      return this[viewId$0];
    }
    set viewId(value) {
      super.viewId = value;
    }
    get state() {
      return this[state$0];
    }
    set state(value) {
      super.state = value;
    }
    get direction() {
      return this[direction$];
    }
    set direction(value) {
      super.direction = value;
    }
    static ['_#new#tearOff'](opts) {
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      if (viewId == null) dart.nullFailed(I[206], 568, 19, "viewId");
      let state = opts && 'state' in opts ? opts.state : null;
      if (state == null) dart.nullFailed(I[206], 569, 19, "state");
      let direction = opts && 'direction' in opts ? opts.direction : null;
      if (direction == null) dart.nullFailed(I[206], 570, 19, "direction");
      return new ui.ViewFocusEvent.new({viewId: viewId, state: state, direction: direction});
    }
    toString() {
      return "ViewFocusEvent(viewId: " + dart.str(this.viewId) + ", state: " + dart.str(this.state) + ", direction: " + dart.str(this.direction) + ")";
    }
  };
  (ui.ViewFocusEvent.new = function(opts) {
    let viewId = opts && 'viewId' in opts ? opts.viewId : null;
    if (viewId == null) dart.nullFailed(I[206], 568, 19, "viewId");
    let state = opts && 'state' in opts ? opts.state : null;
    if (state == null) dart.nullFailed(I[206], 569, 19, "state");
    let direction = opts && 'direction' in opts ? opts.direction : null;
    if (direction == null) dart.nullFailed(I[206], 570, 19, "direction");
    this[viewId$0] = viewId;
    this[state$0] = state;
    this[direction$] = direction;
    ;
  }).prototype = ui.ViewFocusEvent.prototype;
  dart.addRtiResources(ui.ViewFocusEvent, ["ui|ViewFocusEvent"]);
  dart.setLibraryUri(ui.ViewFocusEvent, I[198]);
  dart.setFieldSignature(ui.ViewFocusEvent, () => dart.global.Object.setPrototypeOf({
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    state: {type: T$9.ViewFocusState(), isConst: false, isFinal: true, libraryUri: I[198]},
    direction: {type: T$9.ViewFocusDirection(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.ViewFocusEvent))));
  dart.defineExtensionMethods(ui.ViewFocusEvent, ['toString']);
  ui.ViewFocusState = class ViewFocusState extends core._Enum {
    [_enumToString]() {
      return "ViewFocusState." + dart.str(this[_name$]);
    }
  };
  (ui.ViewFocusState.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 585, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 585, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.ViewFocusState).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.ViewFocusState.prototype;
  dart.addRtiResources(ui.ViewFocusState, ["ui|ViewFocusState"]);
  dart.setMethodSignature(ui.ViewFocusState, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.ViewFocusState))));
  dart.setLibraryUri(ui.ViewFocusState, I[198]);
  dart.setStaticFieldSignature(ui.ViewFocusState, () => ['values', 'unfocused', 'focused']);
  dart.defineLazy(ui.ViewFocusState, {
    /*ui.ViewFocusState.values*/get values() {
      return C[654] || CT.C654;
    },
    /*ui.ViewFocusState.unfocused*/get unfocused() {
      return C[655] || CT.C655;
    },
    /*ui.ViewFocusState.focused*/get focused() {
      return C[656] || CT.C656;
    }
  }, false);
  ui.ViewFocusDirection = class ViewFocusDirection extends core._Enum {
    [_enumToString]() {
      return "ViewFocusDirection." + dart.str(this[_name$]);
    }
  };
  (ui.ViewFocusDirection.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[206], 590, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[206], 590, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.ViewFocusDirection).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.ViewFocusDirection.prototype;
  dart.addRtiResources(ui.ViewFocusDirection, ["ui|ViewFocusDirection"]);
  dart.setMethodSignature(ui.ViewFocusDirection, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.ViewFocusDirection))));
  dart.setLibraryUri(ui.ViewFocusDirection, I[198]);
  dart.setStaticFieldSignature(ui.ViewFocusDirection, () => ['values', 'undefined', 'forward', 'backward']);
  dart.defineLazy(ui.ViewFocusDirection, {
    /*ui.ViewFocusDirection.values*/get values() {
      return C[657] || CT.C657;
    },
    /*ui.ViewFocusDirection.undefined*/get undefined() {
      return C[658] || CT.C658;
    },
    /*ui.ViewFocusDirection.forward*/get forward() {
      return C[659] || CT.C659;
    },
    /*ui.ViewFocusDirection.backward*/get backward() {
      return C[660] || CT.C660;
    }
  }, false);
  ui.PointerChange = class PointerChange extends core._Enum {
    [_enumToString]() {
      return "PointerChange." + dart.str(this[_name$]);
    }
  };
  (ui.PointerChange.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[207], 7, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[207], 7, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.PointerChange).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.PointerChange.prototype;
  dart.addRtiResources(ui.PointerChange, ["ui|PointerChange"]);
  dart.setMethodSignature(ui.PointerChange, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PointerChange))));
  dart.setLibraryUri(ui.PointerChange, I[198]);
  dart.setStaticFieldSignature(ui.PointerChange, () => ['values', 'cancel', 'add', 'remove', 'hover', 'down', 'move', 'up', 'panZoomStart', 'panZoomUpdate', 'panZoomEnd']);
  dart.defineLazy(ui.PointerChange, {
    /*ui.PointerChange.values*/get values() {
      return C[661] || CT.C661;
    },
    /*ui.PointerChange.cancel*/get cancel() {
      return C[662] || CT.C662;
    },
    /*ui.PointerChange.add*/get add() {
      return C[663] || CT.C663;
    },
    /*ui.PointerChange.remove*/get remove() {
      return C[664] || CT.C664;
    },
    /*ui.PointerChange.hover*/get hover() {
      return C[665] || CT.C665;
    },
    /*ui.PointerChange.down*/get down() {
      return C[666] || CT.C666;
    },
    /*ui.PointerChange.move*/get move() {
      return C[667] || CT.C667;
    },
    /*ui.PointerChange.up*/get up() {
      return C[668] || CT.C668;
    },
    /*ui.PointerChange.panZoomStart*/get panZoomStart() {
      return C[669] || CT.C669;
    },
    /*ui.PointerChange.panZoomUpdate*/get panZoomUpdate() {
      return C[670] || CT.C670;
    },
    /*ui.PointerChange.panZoomEnd*/get panZoomEnd() {
      return C[671] || CT.C671;
    }
  }, false);
  ui.PointerDeviceKind = class PointerDeviceKind extends core._Enum {
    [_enumToString]() {
      return "PointerDeviceKind." + dart.str(this[_name$]);
    }
  };
  (ui.PointerDeviceKind.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[207], 20, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[207], 20, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.PointerDeviceKind).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.PointerDeviceKind.prototype;
  dart.addRtiResources(ui.PointerDeviceKind, ["ui|PointerDeviceKind"]);
  dart.setMethodSignature(ui.PointerDeviceKind, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PointerDeviceKind))));
  dart.setLibraryUri(ui.PointerDeviceKind, I[198]);
  dart.setStaticFieldSignature(ui.PointerDeviceKind, () => ['values', 'touch', 'mouse', 'stylus', 'invertedStylus', 'trackpad', 'unknown']);
  dart.defineLazy(ui.PointerDeviceKind, {
    /*ui.PointerDeviceKind.values*/get values() {
      return C[672] || CT.C672;
    },
    /*ui.PointerDeviceKind.touch*/get touch() {
      return C[673] || CT.C673;
    },
    /*ui.PointerDeviceKind.mouse*/get mouse() {
      return C[674] || CT.C674;
    },
    /*ui.PointerDeviceKind.stylus*/get stylus() {
      return C[675] || CT.C675;
    },
    /*ui.PointerDeviceKind.invertedStylus*/get invertedStylus() {
      return C[676] || CT.C676;
    },
    /*ui.PointerDeviceKind.trackpad*/get trackpad() {
      return C[677] || CT.C677;
    },
    /*ui.PointerDeviceKind.unknown*/get unknown() {
      return C[678] || CT.C678;
    }
  }, false);
  ui.PointerSignalKind = class PointerSignalKind extends core._Enum {
    [_enumToString]() {
      return "PointerSignalKind." + dart.str(this[_name$]);
    }
  };
  (ui.PointerSignalKind.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[207], 29, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[207], 29, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.PointerSignalKind).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.PointerSignalKind.prototype;
  dart.addRtiResources(ui.PointerSignalKind, ["ui|PointerSignalKind"]);
  dart.setMethodSignature(ui.PointerSignalKind, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PointerSignalKind))));
  dart.setLibraryUri(ui.PointerSignalKind, I[198]);
  dart.setStaticFieldSignature(ui.PointerSignalKind, () => ['values', 'none', 'scroll', 'scrollInertiaCancel', 'scale', 'unknown']);
  dart.defineLazy(ui.PointerSignalKind, {
    /*ui.PointerSignalKind.values*/get values() {
      return C[679] || CT.C679;
    },
    /*ui.PointerSignalKind.none*/get none() {
      return C[680] || CT.C680;
    },
    /*ui.PointerSignalKind.scroll*/get scroll() {
      return C[681] || CT.C681;
    },
    /*ui.PointerSignalKind.scrollInertiaCancel*/get scrollInertiaCancel() {
      return C[682] || CT.C682;
    },
    /*ui.PointerSignalKind.scale*/get scale() {
      return C[683] || CT.C683;
    },
    /*ui.PointerSignalKind.unknown*/get unknown() {
      return C[684] || CT.C684;
    }
  }, false);
  var viewId$1 = dart.privateName(ui, "PointerData.viewId");
  var embedderId$ = dart.privateName(ui, "PointerData.embedderId");
  var timeStamp$0 = dart.privateName(ui, "PointerData.timeStamp");
  var change$ = dart.privateName(ui, "PointerData.change");
  var kind$ = dart.privateName(ui, "PointerData.kind");
  var signalKind$ = dart.privateName(ui, "PointerData.signalKind");
  var device$ = dart.privateName(ui, "PointerData.device");
  var pointerIdentifier$ = dart.privateName(ui, "PointerData.pointerIdentifier");
  var physicalX$ = dart.privateName(ui, "PointerData.physicalX");
  var physicalY$ = dart.privateName(ui, "PointerData.physicalY");
  var physicalDeltaX$ = dart.privateName(ui, "PointerData.physicalDeltaX");
  var physicalDeltaY$ = dart.privateName(ui, "PointerData.physicalDeltaY");
  var buttons$ = dart.privateName(ui, "PointerData.buttons");
  var obscured$ = dart.privateName(ui, "PointerData.obscured");
  var synthesized$0 = dart.privateName(ui, "PointerData.synthesized");
  var pressure$ = dart.privateName(ui, "PointerData.pressure");
  var pressureMin$ = dart.privateName(ui, "PointerData.pressureMin");
  var pressureMax$ = dart.privateName(ui, "PointerData.pressureMax");
  var distance$ = dart.privateName(ui, "PointerData.distance");
  var distanceMax$ = dart.privateName(ui, "PointerData.distanceMax");
  var size$0 = dart.privateName(ui, "PointerData.size");
  var radiusMajor$ = dart.privateName(ui, "PointerData.radiusMajor");
  var radiusMinor$ = dart.privateName(ui, "PointerData.radiusMinor");
  var radiusMin$ = dart.privateName(ui, "PointerData.radiusMin");
  var radiusMax$ = dart.privateName(ui, "PointerData.radiusMax");
  var orientation$ = dart.privateName(ui, "PointerData.orientation");
  var tilt$ = dart.privateName(ui, "PointerData.tilt");
  var platformData$ = dart.privateName(ui, "PointerData.platformData");
  var scrollDeltaX$ = dart.privateName(ui, "PointerData.scrollDeltaX");
  var scrollDeltaY$ = dart.privateName(ui, "PointerData.scrollDeltaY");
  var panX$ = dart.privateName(ui, "PointerData.panX");
  var panY$ = dart.privateName(ui, "PointerData.panY");
  var panDeltaX$ = dart.privateName(ui, "PointerData.panDeltaX");
  var panDeltaY$ = dart.privateName(ui, "PointerData.panDeltaY");
  var scale$ = dart.privateName(ui, "PointerData.scale");
  var rotation$ = dart.privateName(ui, "PointerData.rotation");
  var _onRespond = dart.privateName(ui, "PointerData._onRespond");
  var _onRespond$ = dart.privateName(ui, "_onRespond");
  ui.PointerData = class PointerData extends core.Object {
    get viewId() {
      return this[viewId$1];
    }
    set viewId(value) {
      super.viewId = value;
    }
    get embedderId() {
      return this[embedderId$];
    }
    set embedderId(value) {
      super.embedderId = value;
    }
    get timeStamp() {
      return this[timeStamp$0];
    }
    set timeStamp(value) {
      super.timeStamp = value;
    }
    get change() {
      return this[change$];
    }
    set change(value) {
      super.change = value;
    }
    get kind() {
      return this[kind$];
    }
    set kind(value) {
      super.kind = value;
    }
    get signalKind() {
      return this[signalKind$];
    }
    set signalKind(value) {
      super.signalKind = value;
    }
    get device() {
      return this[device$];
    }
    set device(value) {
      super.device = value;
    }
    get pointerIdentifier() {
      return this[pointerIdentifier$];
    }
    set pointerIdentifier(value) {
      super.pointerIdentifier = value;
    }
    get physicalX() {
      return this[physicalX$];
    }
    set physicalX(value) {
      super.physicalX = value;
    }
    get physicalY() {
      return this[physicalY$];
    }
    set physicalY(value) {
      super.physicalY = value;
    }
    get physicalDeltaX() {
      return this[physicalDeltaX$];
    }
    set physicalDeltaX(value) {
      super.physicalDeltaX = value;
    }
    get physicalDeltaY() {
      return this[physicalDeltaY$];
    }
    set physicalDeltaY(value) {
      super.physicalDeltaY = value;
    }
    get buttons() {
      return this[buttons$];
    }
    set buttons(value) {
      super.buttons = value;
    }
    get obscured() {
      return this[obscured$];
    }
    set obscured(value) {
      super.obscured = value;
    }
    get synthesized() {
      return this[synthesized$0];
    }
    set synthesized(value) {
      super.synthesized = value;
    }
    get pressure() {
      return this[pressure$];
    }
    set pressure(value) {
      super.pressure = value;
    }
    get pressureMin() {
      return this[pressureMin$];
    }
    set pressureMin(value) {
      super.pressureMin = value;
    }
    get pressureMax() {
      return this[pressureMax$];
    }
    set pressureMax(value) {
      super.pressureMax = value;
    }
    get distance() {
      return this[distance$];
    }
    set distance(value) {
      super.distance = value;
    }
    get distanceMax() {
      return this[distanceMax$];
    }
    set distanceMax(value) {
      super.distanceMax = value;
    }
    get size() {
      return this[size$0];
    }
    set size(value) {
      super.size = value;
    }
    get radiusMajor() {
      return this[radiusMajor$];
    }
    set radiusMajor(value) {
      super.radiusMajor = value;
    }
    get radiusMinor() {
      return this[radiusMinor$];
    }
    set radiusMinor(value) {
      super.radiusMinor = value;
    }
    get radiusMin() {
      return this[radiusMin$];
    }
    set radiusMin(value) {
      super.radiusMin = value;
    }
    get radiusMax() {
      return this[radiusMax$];
    }
    set radiusMax(value) {
      super.radiusMax = value;
    }
    get orientation() {
      return this[orientation$];
    }
    set orientation(value) {
      super.orientation = value;
    }
    get tilt() {
      return this[tilt$];
    }
    set tilt(value) {
      super.tilt = value;
    }
    get platformData() {
      return this[platformData$];
    }
    set platformData(value) {
      super.platformData = value;
    }
    get scrollDeltaX() {
      return this[scrollDeltaX$];
    }
    set scrollDeltaX(value) {
      super.scrollDeltaX = value;
    }
    get scrollDeltaY() {
      return this[scrollDeltaY$];
    }
    set scrollDeltaY(value) {
      super.scrollDeltaY = value;
    }
    get panX() {
      return this[panX$];
    }
    set panX(value) {
      super.panX = value;
    }
    get panY() {
      return this[panY$];
    }
    set panY(value) {
      super.panY = value;
    }
    get panDeltaX() {
      return this[panDeltaX$];
    }
    set panDeltaX(value) {
      super.panDeltaX = value;
    }
    get panDeltaY() {
      return this[panDeltaY$];
    }
    set panDeltaY(value) {
      super.panDeltaY = value;
    }
    get scale() {
      return this[scale$];
    }
    set scale(value) {
      super.scale = value;
    }
    get rotation() {
      return this[rotation$];
    }
    set rotation(value) {
      super.rotation = value;
    }
    get [_onRespond$]() {
      return this[_onRespond];
    }
    set [_onRespond$](value) {
      super[_onRespond$] = value;
    }
    static ['_#new#tearOff'](opts) {
      let viewId = opts && 'viewId' in opts ? opts.viewId : 0;
      if (viewId == null) dart.nullFailed(I[207], 41, 10, "viewId");
      let embedderId = opts && 'embedderId' in opts ? opts.embedderId : 0;
      if (embedderId == null) dart.nullFailed(I[207], 42, 10, "embedderId");
      let timeStamp = opts && 'timeStamp' in opts ? opts.timeStamp : C[472] || CT.C472;
      if (timeStamp == null) dart.nullFailed(I[207], 43, 10, "timeStamp");
      let change = opts && 'change' in opts ? opts.change : C[662] || CT.C662;
      if (change == null) dart.nullFailed(I[207], 44, 10, "change");
      let kind = opts && 'kind' in opts ? opts.kind : C[673] || CT.C673;
      if (kind == null) dart.nullFailed(I[207], 45, 10, "kind");
      let signalKind = opts && 'signalKind' in opts ? opts.signalKind : null;
      let device = opts && 'device' in opts ? opts.device : 0;
      if (device == null) dart.nullFailed(I[207], 47, 10, "device");
      let pointerIdentifier = opts && 'pointerIdentifier' in opts ? opts.pointerIdentifier : 0;
      if (pointerIdentifier == null) dart.nullFailed(I[207], 48, 10, "pointerIdentifier");
      let physicalX = opts && 'physicalX' in opts ? opts.physicalX : 0;
      if (physicalX == null) dart.nullFailed(I[207], 49, 10, "physicalX");
      let physicalY = opts && 'physicalY' in opts ? opts.physicalY : 0;
      if (physicalY == null) dart.nullFailed(I[207], 50, 10, "physicalY");
      let physicalDeltaX = opts && 'physicalDeltaX' in opts ? opts.physicalDeltaX : 0;
      if (physicalDeltaX == null) dart.nullFailed(I[207], 51, 10, "physicalDeltaX");
      let physicalDeltaY = opts && 'physicalDeltaY' in opts ? opts.physicalDeltaY : 0;
      if (physicalDeltaY == null) dart.nullFailed(I[207], 52, 10, "physicalDeltaY");
      let buttons = opts && 'buttons' in opts ? opts.buttons : 0;
      if (buttons == null) dart.nullFailed(I[207], 53, 10, "buttons");
      let obscured = opts && 'obscured' in opts ? opts.obscured : false;
      if (obscured == null) dart.nullFailed(I[207], 54, 10, "obscured");
      let synthesized = opts && 'synthesized' in opts ? opts.synthesized : false;
      if (synthesized == null) dart.nullFailed(I[207], 55, 10, "synthesized");
      let pressure = opts && 'pressure' in opts ? opts.pressure : 0;
      if (pressure == null) dart.nullFailed(I[207], 56, 10, "pressure");
      let pressureMin = opts && 'pressureMin' in opts ? opts.pressureMin : 0;
      if (pressureMin == null) dart.nullFailed(I[207], 57, 10, "pressureMin");
      let pressureMax = opts && 'pressureMax' in opts ? opts.pressureMax : 0;
      if (pressureMax == null) dart.nullFailed(I[207], 58, 10, "pressureMax");
      let distance = opts && 'distance' in opts ? opts.distance : 0;
      if (distance == null) dart.nullFailed(I[207], 59, 10, "distance");
      let distanceMax = opts && 'distanceMax' in opts ? opts.distanceMax : 0;
      if (distanceMax == null) dart.nullFailed(I[207], 60, 10, "distanceMax");
      let size = opts && 'size' in opts ? opts.size : 0;
      if (size == null) dart.nullFailed(I[207], 61, 10, "size");
      let radiusMajor = opts && 'radiusMajor' in opts ? opts.radiusMajor : 0;
      if (radiusMajor == null) dart.nullFailed(I[207], 62, 10, "radiusMajor");
      let radiusMinor = opts && 'radiusMinor' in opts ? opts.radiusMinor : 0;
      if (radiusMinor == null) dart.nullFailed(I[207], 63, 10, "radiusMinor");
      let radiusMin = opts && 'radiusMin' in opts ? opts.radiusMin : 0;
      if (radiusMin == null) dart.nullFailed(I[207], 64, 10, "radiusMin");
      let radiusMax = opts && 'radiusMax' in opts ? opts.radiusMax : 0;
      if (radiusMax == null) dart.nullFailed(I[207], 65, 10, "radiusMax");
      let orientation = opts && 'orientation' in opts ? opts.orientation : 0;
      if (orientation == null) dart.nullFailed(I[207], 66, 10, "orientation");
      let tilt = opts && 'tilt' in opts ? opts.tilt : 0;
      if (tilt == null) dart.nullFailed(I[207], 67, 10, "tilt");
      let platformData = opts && 'platformData' in opts ? opts.platformData : 0;
      if (platformData == null) dart.nullFailed(I[207], 68, 10, "platformData");
      let scrollDeltaX = opts && 'scrollDeltaX' in opts ? opts.scrollDeltaX : 0;
      if (scrollDeltaX == null) dart.nullFailed(I[207], 69, 10, "scrollDeltaX");
      let scrollDeltaY = opts && 'scrollDeltaY' in opts ? opts.scrollDeltaY : 0;
      if (scrollDeltaY == null) dart.nullFailed(I[207], 70, 10, "scrollDeltaY");
      let panX = opts && 'panX' in opts ? opts.panX : 0;
      if (panX == null) dart.nullFailed(I[207], 71, 10, "panX");
      let panY = opts && 'panY' in opts ? opts.panY : 0;
      if (panY == null) dart.nullFailed(I[207], 72, 10, "panY");
      let panDeltaX = opts && 'panDeltaX' in opts ? opts.panDeltaX : 0;
      if (panDeltaX == null) dart.nullFailed(I[207], 73, 10, "panDeltaX");
      let panDeltaY = opts && 'panDeltaY' in opts ? opts.panDeltaY : 0;
      if (panDeltaY == null) dart.nullFailed(I[207], 74, 10, "panDeltaY");
      let scale = opts && 'scale' in opts ? opts.scale : 0;
      if (scale == null) dart.nullFailed(I[207], 75, 10, "scale");
      let rotation = opts && 'rotation' in opts ? opts.rotation : 0;
      if (rotation == null) dart.nullFailed(I[207], 76, 10, "rotation");
      let onRespond = opts && 'onRespond' in opts ? opts.onRespond : null;
      return new ui.PointerData.new({viewId: viewId, embedderId: embedderId, timeStamp: timeStamp, change: change, kind: kind, signalKind: signalKind, device: device, pointerIdentifier: pointerIdentifier, physicalX: physicalX, physicalY: physicalY, physicalDeltaX: physicalDeltaX, physicalDeltaY: physicalDeltaY, buttons: buttons, obscured: obscured, synthesized: synthesized, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, panX: panX, panY: panY, panDeltaX: panDeltaX, panDeltaY: panDeltaY, scale: scale, rotation: rotation, onRespond: onRespond});
    }
    respond(opts) {
      let t$36462;
      let allowPlatformDefault = opts && 'allowPlatformDefault' in opts ? opts.allowPlatformDefault : null;
      if (allowPlatformDefault == null) dart.nullFailed(I[207], 117, 31, "allowPlatformDefault");
      if (this[_onRespond$] != null) {
        t$36462 = allowPlatformDefault;
        this[_onRespond$]({allowPlatformDefault: t$36462});
      }
    }
    toString() {
      return "PointerData(viewId: " + dart.str(this.viewId) + ", x: " + dart.str(this.physicalX) + ", y: " + dart.str(this.physicalY) + ")";
    }
    toStringFull() {
      return dart.str(dart.runtimeType(this)) + "(" + "embedderId: " + dart.str(this.embedderId) + ", " + "timeStamp: " + dart.str(this.timeStamp) + ", " + "change: " + dart.str(this.change) + ", " + "kind: " + dart.str(this.kind) + ", " + "signalKind: " + dart.str(this.signalKind) + ", " + "device: " + dart.str(this.device) + ", " + "pointerIdentifier: " + dart.str(this.pointerIdentifier) + ", " + "physicalX: " + dart.str(this.physicalX) + ", " + "physicalY: " + dart.str(this.physicalY) + ", " + "physicalDeltaX: " + dart.str(this.physicalDeltaX) + ", " + "physicalDeltaY: " + dart.str(this.physicalDeltaY) + ", " + "buttons: " + dart.str(this.buttons) + ", " + "synthesized: " + dart.str(this.synthesized) + ", " + "pressure: " + dart.str(this.pressure) + ", " + "pressureMin: " + dart.str(this.pressureMin) + ", " + "pressureMax: " + dart.str(this.pressureMax) + ", " + "distance: " + dart.str(this.distance) + ", " + "distanceMax: " + dart.str(this.distanceMax) + ", " + "size: " + dart.str(this.size) + ", " + "radiusMajor: " + dart.str(this.radiusMajor) + ", " + "radiusMinor: " + dart.str(this.radiusMinor) + ", " + "radiusMin: " + dart.str(this.radiusMin) + ", " + "radiusMax: " + dart.str(this.radiusMax) + ", " + "orientation: " + dart.str(this.orientation) + ", " + "tilt: " + dart.str(this.tilt) + ", " + "platformData: " + dart.str(this.platformData) + ", " + "scrollDeltaX: " + dart.str(this.scrollDeltaX) + ", " + "scrollDeltaY: " + dart.str(this.scrollDeltaY) + ", " + "panX: " + dart.str(this.panX) + ", " + "panY: " + dart.str(this.panY) + ", " + "panDeltaX: " + dart.str(this.panDeltaX) + ", " + "panDeltaY: " + dart.str(this.panDeltaY) + ", " + "scale: " + dart.str(this.scale) + ", " + "rotation: " + dart.str(this.rotation) + ", " + "viewId: " + dart.str(this.viewId) + ")";
    }
  };
  (ui.PointerData.new = function(opts) {
    let viewId = opts && 'viewId' in opts ? opts.viewId : 0;
    if (viewId == null) dart.nullFailed(I[207], 41, 10, "viewId");
    let embedderId = opts && 'embedderId' in opts ? opts.embedderId : 0;
    if (embedderId == null) dart.nullFailed(I[207], 42, 10, "embedderId");
    let timeStamp = opts && 'timeStamp' in opts ? opts.timeStamp : C[472] || CT.C472;
    if (timeStamp == null) dart.nullFailed(I[207], 43, 10, "timeStamp");
    let change = opts && 'change' in opts ? opts.change : C[662] || CT.C662;
    if (change == null) dart.nullFailed(I[207], 44, 10, "change");
    let kind = opts && 'kind' in opts ? opts.kind : C[673] || CT.C673;
    if (kind == null) dart.nullFailed(I[207], 45, 10, "kind");
    let signalKind = opts && 'signalKind' in opts ? opts.signalKind : null;
    let device = opts && 'device' in opts ? opts.device : 0;
    if (device == null) dart.nullFailed(I[207], 47, 10, "device");
    let pointerIdentifier = opts && 'pointerIdentifier' in opts ? opts.pointerIdentifier : 0;
    if (pointerIdentifier == null) dart.nullFailed(I[207], 48, 10, "pointerIdentifier");
    let physicalX = opts && 'physicalX' in opts ? opts.physicalX : 0;
    if (physicalX == null) dart.nullFailed(I[207], 49, 10, "physicalX");
    let physicalY = opts && 'physicalY' in opts ? opts.physicalY : 0;
    if (physicalY == null) dart.nullFailed(I[207], 50, 10, "physicalY");
    let physicalDeltaX = opts && 'physicalDeltaX' in opts ? opts.physicalDeltaX : 0;
    if (physicalDeltaX == null) dart.nullFailed(I[207], 51, 10, "physicalDeltaX");
    let physicalDeltaY = opts && 'physicalDeltaY' in opts ? opts.physicalDeltaY : 0;
    if (physicalDeltaY == null) dart.nullFailed(I[207], 52, 10, "physicalDeltaY");
    let buttons = opts && 'buttons' in opts ? opts.buttons : 0;
    if (buttons == null) dart.nullFailed(I[207], 53, 10, "buttons");
    let obscured = opts && 'obscured' in opts ? opts.obscured : false;
    if (obscured == null) dart.nullFailed(I[207], 54, 10, "obscured");
    let synthesized = opts && 'synthesized' in opts ? opts.synthesized : false;
    if (synthesized == null) dart.nullFailed(I[207], 55, 10, "synthesized");
    let pressure = opts && 'pressure' in opts ? opts.pressure : 0;
    if (pressure == null) dart.nullFailed(I[207], 56, 10, "pressure");
    let pressureMin = opts && 'pressureMin' in opts ? opts.pressureMin : 0;
    if (pressureMin == null) dart.nullFailed(I[207], 57, 10, "pressureMin");
    let pressureMax = opts && 'pressureMax' in opts ? opts.pressureMax : 0;
    if (pressureMax == null) dart.nullFailed(I[207], 58, 10, "pressureMax");
    let distance = opts && 'distance' in opts ? opts.distance : 0;
    if (distance == null) dart.nullFailed(I[207], 59, 10, "distance");
    let distanceMax = opts && 'distanceMax' in opts ? opts.distanceMax : 0;
    if (distanceMax == null) dart.nullFailed(I[207], 60, 10, "distanceMax");
    let size = opts && 'size' in opts ? opts.size : 0;
    if (size == null) dart.nullFailed(I[207], 61, 10, "size");
    let radiusMajor = opts && 'radiusMajor' in opts ? opts.radiusMajor : 0;
    if (radiusMajor == null) dart.nullFailed(I[207], 62, 10, "radiusMajor");
    let radiusMinor = opts && 'radiusMinor' in opts ? opts.radiusMinor : 0;
    if (radiusMinor == null) dart.nullFailed(I[207], 63, 10, "radiusMinor");
    let radiusMin = opts && 'radiusMin' in opts ? opts.radiusMin : 0;
    if (radiusMin == null) dart.nullFailed(I[207], 64, 10, "radiusMin");
    let radiusMax = opts && 'radiusMax' in opts ? opts.radiusMax : 0;
    if (radiusMax == null) dart.nullFailed(I[207], 65, 10, "radiusMax");
    let orientation = opts && 'orientation' in opts ? opts.orientation : 0;
    if (orientation == null) dart.nullFailed(I[207], 66, 10, "orientation");
    let tilt = opts && 'tilt' in opts ? opts.tilt : 0;
    if (tilt == null) dart.nullFailed(I[207], 67, 10, "tilt");
    let platformData = opts && 'platformData' in opts ? opts.platformData : 0;
    if (platformData == null) dart.nullFailed(I[207], 68, 10, "platformData");
    let scrollDeltaX = opts && 'scrollDeltaX' in opts ? opts.scrollDeltaX : 0;
    if (scrollDeltaX == null) dart.nullFailed(I[207], 69, 10, "scrollDeltaX");
    let scrollDeltaY = opts && 'scrollDeltaY' in opts ? opts.scrollDeltaY : 0;
    if (scrollDeltaY == null) dart.nullFailed(I[207], 70, 10, "scrollDeltaY");
    let panX = opts && 'panX' in opts ? opts.panX : 0;
    if (panX == null) dart.nullFailed(I[207], 71, 10, "panX");
    let panY = opts && 'panY' in opts ? opts.panY : 0;
    if (panY == null) dart.nullFailed(I[207], 72, 10, "panY");
    let panDeltaX = opts && 'panDeltaX' in opts ? opts.panDeltaX : 0;
    if (panDeltaX == null) dart.nullFailed(I[207], 73, 10, "panDeltaX");
    let panDeltaY = opts && 'panDeltaY' in opts ? opts.panDeltaY : 0;
    if (panDeltaY == null) dart.nullFailed(I[207], 74, 10, "panDeltaY");
    let scale = opts && 'scale' in opts ? opts.scale : 0;
    if (scale == null) dart.nullFailed(I[207], 75, 10, "scale");
    let rotation = opts && 'rotation' in opts ? opts.rotation : 0;
    if (rotation == null) dart.nullFailed(I[207], 76, 10, "rotation");
    let onRespond = opts && 'onRespond' in opts ? opts.onRespond : null;
    this[viewId$1] = viewId;
    this[embedderId$] = embedderId;
    this[timeStamp$0] = timeStamp;
    this[change$] = change;
    this[kind$] = kind;
    this[signalKind$] = signalKind;
    this[device$] = device;
    this[pointerIdentifier$] = pointerIdentifier;
    this[physicalX$] = physicalX;
    this[physicalY$] = physicalY;
    this[physicalDeltaX$] = physicalDeltaX;
    this[physicalDeltaY$] = physicalDeltaY;
    this[buttons$] = buttons;
    this[obscured$] = obscured;
    this[synthesized$0] = synthesized;
    this[pressure$] = pressure;
    this[pressureMin$] = pressureMin;
    this[pressureMax$] = pressureMax;
    this[distance$] = distance;
    this[distanceMax$] = distanceMax;
    this[size$0] = size;
    this[radiusMajor$] = radiusMajor;
    this[radiusMinor$] = radiusMinor;
    this[radiusMin$] = radiusMin;
    this[radiusMax$] = radiusMax;
    this[orientation$] = orientation;
    this[tilt$] = tilt;
    this[platformData$] = platformData;
    this[scrollDeltaX$] = scrollDeltaX;
    this[scrollDeltaY$] = scrollDeltaY;
    this[panX$] = panX;
    this[panY$] = panY;
    this[panDeltaX$] = panDeltaX;
    this[panDeltaY$] = panDeltaY;
    this[scale$] = scale;
    this[rotation$] = rotation;
    this[_onRespond] = onRespond;
    ;
  }).prototype = ui.PointerData.prototype;
  dart.addRtiResources(ui.PointerData, ["ui|PointerData"]);
  dart.setMethodSignature(ui.PointerData, () => dart.global.Object.setPrototypeOf({
    respond: T$9.__Tovoid$7(),
    toStringFull: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PointerData))));
  dart.setLibraryUri(ui.PointerData, I[198]);
  dart.setFieldSignature(ui.PointerData, () => dart.global.Object.setPrototypeOf({
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    embedderId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    timeStamp: {type: T$8.Duration(), isConst: false, isFinal: true, libraryUri: I[11]},
    change: {type: T$9.PointerChange(), isConst: false, isFinal: true, libraryUri: I[198]},
    kind: {type: T$9.PointerDeviceKind(), isConst: false, isFinal: true, libraryUri: I[198]},
    signalKind: {type: T$9.PointerSignalKindN(), isConst: false, isFinal: true, libraryUri: I[198]},
    device: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    pointerIdentifier: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    physicalX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    physicalY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    physicalDeltaX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    physicalDeltaY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    buttons: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    obscured: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    synthesized: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    pressure: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    pressureMin: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    pressureMax: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    distance: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    distanceMax: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    size: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    radiusMajor: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    radiusMinor: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    radiusMin: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    radiusMax: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    orientation: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    tilt: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    platformData: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    scrollDeltaX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    scrollDeltaY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    panX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    panY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    panDeltaX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    panDeltaY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    scale: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    rotation: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_onRespond$]: {type: T$9.__ToNvoid(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.PointerData))));
  dart.defineExtensionMethods(ui.PointerData, ['toString']);
  var data$1 = dart.privateName(ui, "PointerDataPacket.data");
  ui.PointerDataPacket = class PointerDataPacket extends core.Object {
    get data() {
      return this[data$1];
    }
    set data(value) {
      super.data = value;
    }
    static ['_#new#tearOff'](opts) {
      let data = opts && 'data' in opts ? opts.data : C[685] || CT.C685;
      if (data == null) dart.nullFailed(I[207], 167, 33, "data");
      return new ui.PointerDataPacket.new({data: data});
    }
  };
  (ui.PointerDataPacket.new = function(opts) {
    let data = opts && 'data' in opts ? opts.data : C[685] || CT.C685;
    if (data == null) dart.nullFailed(I[207], 167, 33, "data");
    this[data$1] = data;
    ;
  }).prototype = ui.PointerDataPacket.prototype;
  dart.addRtiResources(ui.PointerDataPacket, ["ui|PointerDataPacket"]);
  dart.setLibraryUri(ui.PointerDataPacket, I[198]);
  dart.setFieldSignature(ui.PointerDataPacket, () => dart.global.Object.setPrototypeOf({data: {type: T$9.ListOfPointerData(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.PointerDataPacket))));
  var index$0 = dart.privateName(ui, "SemanticsAction.index");
  var name$17 = dart.privateName(ui, "SemanticsAction.name");
  ui.SemanticsAction = class SemanticsAction extends core.Object {
    get index() {
      return this[index$0];
    }
    set index(value) {
      super.index = value;
    }
    get name() {
      return this[name$17];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#_#tearOff'](index, name) {
      if (index == null) dart.nullFailed(I[208], 8, 32, "index");
      if (name == null) dart.nullFailed(I[208], 8, 44, "name");
      return new ui.SemanticsAction.__(index, name);
    }
    static get values() {
      return ui.SemanticsAction._kActionById[$values][$toList]({growable: false});
    }
    static fromIndex(index) {
      if (index == null) dart.nullFailed(I[208], 89, 41, "index");
      return ui.SemanticsAction._kActionById[$_get](index);
    }
    toString() {
      return "SemanticsAction." + dart.str(this.name);
    }
  };
  (ui.SemanticsAction.__ = function(index, name) {
    if (index == null) dart.nullFailed(I[208], 8, 32, "index");
    if (name == null) dart.nullFailed(I[208], 8, 44, "name");
    this[index$0] = index;
    this[name$17] = name;
    ;
  }).prototype = ui.SemanticsAction.prototype;
  dart.addRtiResources(ui.SemanticsAction, ["ui|SemanticsAction"]);
  dart.setStaticMethodSignature(ui.SemanticsAction, () => ['fromIndex']);
  dart.setStaticGetterSignature(ui.SemanticsAction, () => ['values']);
  dart.setLibraryUri(ui.SemanticsAction, I[198]);
  dart.setFieldSignature(ui.SemanticsAction, () => dart.global.Object.setPrototypeOf({
    index: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.SemanticsAction))));
  dart.setStaticFieldSignature(ui.SemanticsAction, () => ['_kTapIndex', '_kLongPressIndex', '_kScrollLeftIndex', '_kScrollRightIndex', '_kScrollUpIndex', '_kScrollDownIndex', '_kIncreaseIndex', '_kDecreaseIndex', '_kShowOnScreenIndex', '_kMoveCursorForwardByCharacterIndex', '_kMoveCursorBackwardByCharacterIndex', '_kSetSelectionIndex', '_kCopyIndex', '_kCutIndex', '_kPasteIndex', '_kDidGainAccessibilityFocusIndex', '_kDidLoseAccessibilityFocusIndex', '_kCustomActionIndex', '_kDismissIndex', '_kMoveCursorForwardByWordIndex', '_kMoveCursorBackwardByWordIndex', '_kSetTextIndex', '_kFocusIndex', 'tap', 'longPress', 'scrollLeft', 'scrollRight', 'scrollUp', 'scrollDown', 'increase', 'decrease', 'showOnScreen', 'moveCursorForwardByCharacter', 'moveCursorBackwardByCharacter', 'setText', 'setSelection', 'copy', 'cut', 'paste', 'didGainAccessibilityFocus', 'didLoseAccessibilityFocus', 'customAction', 'dismiss', 'moveCursorForwardByWord', 'moveCursorBackwardByWord', 'focus', '_kActionById']);
  dart.defineExtensionMethods(ui.SemanticsAction, ['toString']);
  dart.defineLazy(ui.SemanticsAction, {
    /*ui.SemanticsAction._kTapIndex*/get _kTapIndex() {
      return 1;
    },
    /*ui.SemanticsAction._kLongPressIndex*/get _kLongPressIndex() {
      return 2;
    },
    /*ui.SemanticsAction._kScrollLeftIndex*/get _kScrollLeftIndex() {
      return 4;
    },
    /*ui.SemanticsAction._kScrollRightIndex*/get _kScrollRightIndex() {
      return 8;
    },
    /*ui.SemanticsAction._kScrollUpIndex*/get _kScrollUpIndex() {
      return 16;
    },
    /*ui.SemanticsAction._kScrollDownIndex*/get _kScrollDownIndex() {
      return 32;
    },
    /*ui.SemanticsAction._kIncreaseIndex*/get _kIncreaseIndex() {
      return 64;
    },
    /*ui.SemanticsAction._kDecreaseIndex*/get _kDecreaseIndex() {
      return 128;
    },
    /*ui.SemanticsAction._kShowOnScreenIndex*/get _kShowOnScreenIndex() {
      return 256;
    },
    /*ui.SemanticsAction._kMoveCursorForwardByCharacterIndex*/get _kMoveCursorForwardByCharacterIndex() {
      return 512;
    },
    /*ui.SemanticsAction._kMoveCursorBackwardByCharacterIndex*/get _kMoveCursorBackwardByCharacterIndex() {
      return 1024;
    },
    /*ui.SemanticsAction._kSetSelectionIndex*/get _kSetSelectionIndex() {
      return 2048;
    },
    /*ui.SemanticsAction._kCopyIndex*/get _kCopyIndex() {
      return 4096;
    },
    /*ui.SemanticsAction._kCutIndex*/get _kCutIndex() {
      return 8192;
    },
    /*ui.SemanticsAction._kPasteIndex*/get _kPasteIndex() {
      return 16384;
    },
    /*ui.SemanticsAction._kDidGainAccessibilityFocusIndex*/get _kDidGainAccessibilityFocusIndex() {
      return 32768;
    },
    /*ui.SemanticsAction._kDidLoseAccessibilityFocusIndex*/get _kDidLoseAccessibilityFocusIndex() {
      return 65536;
    },
    /*ui.SemanticsAction._kCustomActionIndex*/get _kCustomActionIndex() {
      return 131072;
    },
    /*ui.SemanticsAction._kDismissIndex*/get _kDismissIndex() {
      return 262144;
    },
    /*ui.SemanticsAction._kMoveCursorForwardByWordIndex*/get _kMoveCursorForwardByWordIndex() {
      return 524288;
    },
    /*ui.SemanticsAction._kMoveCursorBackwardByWordIndex*/get _kMoveCursorBackwardByWordIndex() {
      return 1048576;
    },
    /*ui.SemanticsAction._kSetTextIndex*/get _kSetTextIndex() {
      return 2097152;
    },
    /*ui.SemanticsAction._kFocusIndex*/get _kFocusIndex() {
      return 4194304;
    },
    /*ui.SemanticsAction.tap*/get tap() {
      return C[686] || CT.C686;
    },
    /*ui.SemanticsAction.longPress*/get longPress() {
      return C[687] || CT.C687;
    },
    /*ui.SemanticsAction.scrollLeft*/get scrollLeft() {
      return C[688] || CT.C688;
    },
    /*ui.SemanticsAction.scrollRight*/get scrollRight() {
      return C[689] || CT.C689;
    },
    /*ui.SemanticsAction.scrollUp*/get scrollUp() {
      return C[690] || CT.C690;
    },
    /*ui.SemanticsAction.scrollDown*/get scrollDown() {
      return C[691] || CT.C691;
    },
    /*ui.SemanticsAction.increase*/get increase() {
      return C[692] || CT.C692;
    },
    /*ui.SemanticsAction.decrease*/get decrease() {
      return C[693] || CT.C693;
    },
    /*ui.SemanticsAction.showOnScreen*/get showOnScreen() {
      return C[694] || CT.C694;
    },
    /*ui.SemanticsAction.moveCursorForwardByCharacter*/get moveCursorForwardByCharacter() {
      return C[695] || CT.C695;
    },
    /*ui.SemanticsAction.moveCursorBackwardByCharacter*/get moveCursorBackwardByCharacter() {
      return C[696] || CT.C696;
    },
    /*ui.SemanticsAction.setText*/get setText() {
      return C[697] || CT.C697;
    },
    /*ui.SemanticsAction.setSelection*/get setSelection() {
      return C[698] || CT.C698;
    },
    /*ui.SemanticsAction.copy*/get copy() {
      return C[699] || CT.C699;
    },
    /*ui.SemanticsAction.cut*/get cut() {
      return C[700] || CT.C700;
    },
    /*ui.SemanticsAction.paste*/get paste() {
      return C[701] || CT.C701;
    },
    /*ui.SemanticsAction.didGainAccessibilityFocus*/get didGainAccessibilityFocus() {
      return C[702] || CT.C702;
    },
    /*ui.SemanticsAction.didLoseAccessibilityFocus*/get didLoseAccessibilityFocus() {
      return C[703] || CT.C703;
    },
    /*ui.SemanticsAction.customAction*/get customAction() {
      return C[704] || CT.C704;
    },
    /*ui.SemanticsAction.dismiss*/get dismiss() {
      return C[705] || CT.C705;
    },
    /*ui.SemanticsAction.moveCursorForwardByWord*/get moveCursorForwardByWord() {
      return C[706] || CT.C706;
    },
    /*ui.SemanticsAction.moveCursorBackwardByWord*/get moveCursorBackwardByWord() {
      return C[707] || CT.C707;
    },
    /*ui.SemanticsAction.focus*/get focus() {
      return C[708] || CT.C708;
    },
    /*ui.SemanticsAction._kActionById*/get _kActionById() {
      return C[709] || CT.C709;
    }
  }, false);
  var index$1 = dart.privateName(ui, "SemanticsFlag.index");
  var name$18 = dart.privateName(ui, "SemanticsFlag.name");
  ui.SemanticsFlag = class SemanticsFlag extends core.Object {
    get index() {
      return this[index$1];
    }
    set index(value) {
      super.index = value;
    }
    get name() {
      return this[name$18];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#_#tearOff'](index, name) {
      if (index == null) dart.nullFailed(I[208], 96, 30, "index");
      if (name == null) dart.nullFailed(I[208], 96, 42, "name");
      return new ui.SemanticsFlag.__(index, name);
    }
    static get values() {
      return ui.SemanticsFlag._kFlagById[$values][$toList]({growable: false});
    }
    static fromIndex(index) {
      if (index == null) dart.nullFailed(I[208], 192, 39, "index");
      return ui.SemanticsFlag._kFlagById[$_get](index);
    }
    toString() {
      return "SemanticsFlag." + dart.str(this.name);
    }
  };
  (ui.SemanticsFlag.__ = function(index, name) {
    if (index == null) dart.nullFailed(I[208], 96, 30, "index");
    if (name == null) dart.nullFailed(I[208], 96, 42, "name");
    this[index$1] = index;
    this[name$18] = name;
    ;
  }).prototype = ui.SemanticsFlag.prototype;
  dart.addRtiResources(ui.SemanticsFlag, ["ui|SemanticsFlag"]);
  dart.setStaticMethodSignature(ui.SemanticsFlag, () => ['fromIndex']);
  dart.setStaticGetterSignature(ui.SemanticsFlag, () => ['values']);
  dart.setLibraryUri(ui.SemanticsFlag, I[198]);
  dart.setFieldSignature(ui.SemanticsFlag, () => dart.global.Object.setPrototypeOf({
    index: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.SemanticsFlag))));
  dart.setStaticFieldSignature(ui.SemanticsFlag, () => ['_kHasCheckedStateIndex', '_kIsCheckedIndex', '_kIsSelectedIndex', '_kIsButtonIndex', '_kIsTextFieldIndex', '_kIsFocusedIndex', '_kHasEnabledStateIndex', '_kIsEnabledIndex', '_kIsInMutuallyExclusiveGroupIndex', '_kIsHeaderIndex', '_kIsObscuredIndex', '_kScopesRouteIndex', '_kNamesRouteIndex', '_kIsHiddenIndex', '_kIsImageIndex', '_kIsLiveRegionIndex', '_kHasToggledStateIndex', '_kIsToggledIndex', '_kHasImplicitScrollingIndex', '_kIsMultilineIndex', '_kIsReadOnlyIndex', '_kIsFocusableIndex', '_kIsLinkIndex', '_kIsSliderIndex', '_kIsKeyboardKeyIndex', '_kIsCheckStateMixedIndex', '_kHasExpandedStateIndex', '_kIsExpandedIndex', 'hasCheckedState', 'isChecked', 'isSelected', 'isButton', 'isTextField', 'isSlider', 'isKeyboardKey', 'isReadOnly', 'isLink', 'isFocusable', 'isFocused', 'hasEnabledState', 'isEnabled', 'isInMutuallyExclusiveGroup', 'isHeader', 'isObscured', 'isMultiline', 'scopesRoute', 'namesRoute', 'isHidden', 'isImage', 'isLiveRegion', 'hasToggledState', 'isToggled', 'hasImplicitScrolling', 'isCheckStateMixed', 'hasExpandedState', 'isExpanded', '_kFlagById']);
  dart.defineExtensionMethods(ui.SemanticsFlag, ['toString']);
  dart.defineLazy(ui.SemanticsFlag, {
    /*ui.SemanticsFlag._kHasCheckedStateIndex*/get _kHasCheckedStateIndex() {
      return 1;
    },
    /*ui.SemanticsFlag._kIsCheckedIndex*/get _kIsCheckedIndex() {
      return 2;
    },
    /*ui.SemanticsFlag._kIsSelectedIndex*/get _kIsSelectedIndex() {
      return 4;
    },
    /*ui.SemanticsFlag._kIsButtonIndex*/get _kIsButtonIndex() {
      return 8;
    },
    /*ui.SemanticsFlag._kIsTextFieldIndex*/get _kIsTextFieldIndex() {
      return 16;
    },
    /*ui.SemanticsFlag._kIsFocusedIndex*/get _kIsFocusedIndex() {
      return 32;
    },
    /*ui.SemanticsFlag._kHasEnabledStateIndex*/get _kHasEnabledStateIndex() {
      return 64;
    },
    /*ui.SemanticsFlag._kIsEnabledIndex*/get _kIsEnabledIndex() {
      return 128;
    },
    /*ui.SemanticsFlag._kIsInMutuallyExclusiveGroupIndex*/get _kIsInMutuallyExclusiveGroupIndex() {
      return 256;
    },
    /*ui.SemanticsFlag._kIsHeaderIndex*/get _kIsHeaderIndex() {
      return 512;
    },
    /*ui.SemanticsFlag._kIsObscuredIndex*/get _kIsObscuredIndex() {
      return 1024;
    },
    /*ui.SemanticsFlag._kScopesRouteIndex*/get _kScopesRouteIndex() {
      return 2048;
    },
    /*ui.SemanticsFlag._kNamesRouteIndex*/get _kNamesRouteIndex() {
      return 4096;
    },
    /*ui.SemanticsFlag._kIsHiddenIndex*/get _kIsHiddenIndex() {
      return 8192;
    },
    /*ui.SemanticsFlag._kIsImageIndex*/get _kIsImageIndex() {
      return 16384;
    },
    /*ui.SemanticsFlag._kIsLiveRegionIndex*/get _kIsLiveRegionIndex() {
      return 32768;
    },
    /*ui.SemanticsFlag._kHasToggledStateIndex*/get _kHasToggledStateIndex() {
      return 65536;
    },
    /*ui.SemanticsFlag._kIsToggledIndex*/get _kIsToggledIndex() {
      return 131072;
    },
    /*ui.SemanticsFlag._kHasImplicitScrollingIndex*/get _kHasImplicitScrollingIndex() {
      return 262144;
    },
    /*ui.SemanticsFlag._kIsMultilineIndex*/get _kIsMultilineIndex() {
      return 524288;
    },
    /*ui.SemanticsFlag._kIsReadOnlyIndex*/get _kIsReadOnlyIndex() {
      return 1048576;
    },
    /*ui.SemanticsFlag._kIsFocusableIndex*/get _kIsFocusableIndex() {
      return 2097152;
    },
    /*ui.SemanticsFlag._kIsLinkIndex*/get _kIsLinkIndex() {
      return 4194304;
    },
    /*ui.SemanticsFlag._kIsSliderIndex*/get _kIsSliderIndex() {
      return 8388608;
    },
    /*ui.SemanticsFlag._kIsKeyboardKeyIndex*/get _kIsKeyboardKeyIndex() {
      return 16777216;
    },
    /*ui.SemanticsFlag._kIsCheckStateMixedIndex*/get _kIsCheckStateMixedIndex() {
      return 33554432;
    },
    /*ui.SemanticsFlag._kHasExpandedStateIndex*/get _kHasExpandedStateIndex() {
      return 67108864;
    },
    /*ui.SemanticsFlag._kIsExpandedIndex*/get _kIsExpandedIndex() {
      return 134217728;
    },
    /*ui.SemanticsFlag.hasCheckedState*/get hasCheckedState() {
      return C[710] || CT.C710;
    },
    /*ui.SemanticsFlag.isChecked*/get isChecked() {
      return C[711] || CT.C711;
    },
    /*ui.SemanticsFlag.isSelected*/get isSelected() {
      return C[712] || CT.C712;
    },
    /*ui.SemanticsFlag.isButton*/get isButton() {
      return C[713] || CT.C713;
    },
    /*ui.SemanticsFlag.isTextField*/get isTextField() {
      return C[714] || CT.C714;
    },
    /*ui.SemanticsFlag.isSlider*/get isSlider() {
      return C[715] || CT.C715;
    },
    /*ui.SemanticsFlag.isKeyboardKey*/get isKeyboardKey() {
      return C[716] || CT.C716;
    },
    /*ui.SemanticsFlag.isReadOnly*/get isReadOnly() {
      return C[717] || CT.C717;
    },
    /*ui.SemanticsFlag.isLink*/get isLink() {
      return C[718] || CT.C718;
    },
    /*ui.SemanticsFlag.isFocusable*/get isFocusable() {
      return C[719] || CT.C719;
    },
    /*ui.SemanticsFlag.isFocused*/get isFocused() {
      return C[720] || CT.C720;
    },
    /*ui.SemanticsFlag.hasEnabledState*/get hasEnabledState() {
      return C[721] || CT.C721;
    },
    /*ui.SemanticsFlag.isEnabled*/get isEnabled() {
      return C[722] || CT.C722;
    },
    /*ui.SemanticsFlag.isInMutuallyExclusiveGroup*/get isInMutuallyExclusiveGroup() {
      return C[723] || CT.C723;
    },
    /*ui.SemanticsFlag.isHeader*/get isHeader() {
      return C[724] || CT.C724;
    },
    /*ui.SemanticsFlag.isObscured*/get isObscured() {
      return C[725] || CT.C725;
    },
    /*ui.SemanticsFlag.isMultiline*/get isMultiline() {
      return C[726] || CT.C726;
    },
    /*ui.SemanticsFlag.scopesRoute*/get scopesRoute() {
      return C[727] || CT.C727;
    },
    /*ui.SemanticsFlag.namesRoute*/get namesRoute() {
      return C[728] || CT.C728;
    },
    /*ui.SemanticsFlag.isHidden*/get isHidden() {
      return C[729] || CT.C729;
    },
    /*ui.SemanticsFlag.isImage*/get isImage() {
      return C[730] || CT.C730;
    },
    /*ui.SemanticsFlag.isLiveRegion*/get isLiveRegion() {
      return C[731] || CT.C731;
    },
    /*ui.SemanticsFlag.hasToggledState*/get hasToggledState() {
      return C[732] || CT.C732;
    },
    /*ui.SemanticsFlag.isToggled*/get isToggled() {
      return C[733] || CT.C733;
    },
    /*ui.SemanticsFlag.hasImplicitScrolling*/get hasImplicitScrolling() {
      return C[734] || CT.C734;
    },
    /*ui.SemanticsFlag.isCheckStateMixed*/get isCheckStateMixed() {
      return C[735] || CT.C735;
    },
    /*ui.SemanticsFlag.hasExpandedState*/get hasExpandedState() {
      return C[736] || CT.C736;
    },
    /*ui.SemanticsFlag.isExpanded*/get isExpanded() {
      return C[737] || CT.C737;
    },
    /*ui.SemanticsFlag._kFlagById*/get _kFlagById() {
      return C[738] || CT.C738;
    }
  }, false);
  var range$ = dart.privateName(ui, "StringAttribute.range");
  ui.StringAttribute = class StringAttribute extends core.Object {
    get range() {
      return this[range$];
    }
    set range(value) {
      super.range = value;
    }
  };
  (ui.StringAttribute.__ = function(opts) {
    let range = opts && 'range' in opts ? opts.range : null;
    if (range == null) dart.nullFailed(I[208], 208, 19, "range");
    this[range$] = range;
    ;
  }).prototype = ui.StringAttribute.prototype;
  dart.addRtiResources(ui.StringAttribute, ["ui|StringAttribute"]);
  dart.setLibraryUri(ui.StringAttribute, I[198]);
  dart.setFieldSignature(ui.StringAttribute, () => dart.global.Object.setPrototypeOf({range: {type: T$9.TextRange(), isConst: false, isFinal: true, libraryUri: I[198]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.StringAttribute))));
  ui.SpellOutStringAttribute = class SpellOutStringAttribute extends ui.StringAttribute {
    static ['_#new#tearOff'](opts) {
      let range = opts && 'range' in opts ? opts.range : null;
      if (range == null) dart.nullFailed(I[208], 218, 20, "range");
      return new ui.SpellOutStringAttribute.new({range: range});
    }
    copy(opts) {
      let range = opts && 'range' in opts ? opts.range : null;
      if (range == null) dart.nullFailed(I[208], 222, 44, "range");
      return new ui.SpellOutStringAttribute.new({range: range});
    }
    toString() {
      return "SpellOutStringAttribute(" + dart.str(this.range) + ")";
    }
  };
  (ui.SpellOutStringAttribute.new = function(opts) {
    let range = opts && 'range' in opts ? opts.range : null;
    if (range == null) dart.nullFailed(I[208], 218, 20, "range");
    dart.global.Object.getPrototypeOf(ui.SpellOutStringAttribute).__.call(this, {range: range});
    ;
  }).prototype = ui.SpellOutStringAttribute.prototype;
  dart.addRtiResources(ui.SpellOutStringAttribute, ["ui|SpellOutStringAttribute"]);
  dart.setMethodSignature(ui.SpellOutStringAttribute, () => dart.global.Object.setPrototypeOf({copy: T$9.__ToStringAttribute()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.SpellOutStringAttribute))));
  dart.setLibraryUri(ui.SpellOutStringAttribute, I[198]);
  dart.defineExtensionMethods(ui.SpellOutStringAttribute, ['toString']);
  var locale$ = dart.privateName(ui, "LocaleStringAttribute.locale");
  ui.LocaleStringAttribute = class LocaleStringAttribute extends ui.StringAttribute {
    get locale() {
      return this[locale$];
    }
    set locale(value) {
      super.locale = value;
    }
    static ['_#new#tearOff'](opts) {
      let range = opts && 'range' in opts ? opts.range : null;
      if (range == null) dart.nullFailed(I[208], 234, 20, "range");
      let locale = opts && 'locale' in opts ? opts.locale : null;
      if (locale == null) dart.nullFailed(I[208], 235, 19, "locale");
      return new ui.LocaleStringAttribute.new({range: range, locale: locale});
    }
    copy(opts) {
      let range = opts && 'range' in opts ? opts.range : null;
      if (range == null) dart.nullFailed(I[208], 241, 44, "range");
      return new ui.LocaleStringAttribute.new({range: range, locale: this.locale});
    }
    toString() {
      return "LocaleStringAttribute(" + dart.str(this.range) + ", " + dart.str(this.locale.toLanguageTag()) + ")";
    }
  };
  (ui.LocaleStringAttribute.new = function(opts) {
    let range = opts && 'range' in opts ? opts.range : null;
    if (range == null) dart.nullFailed(I[208], 234, 20, "range");
    let locale = opts && 'locale' in opts ? opts.locale : null;
    if (locale == null) dart.nullFailed(I[208], 235, 19, "locale");
    this[locale$] = locale;
    dart.global.Object.getPrototypeOf(ui.LocaleStringAttribute).__.call(this, {range: range});
    ;
  }).prototype = ui.LocaleStringAttribute.prototype;
  dart.addRtiResources(ui.LocaleStringAttribute, ["ui|LocaleStringAttribute"]);
  dart.setMethodSignature(ui.LocaleStringAttribute, () => dart.global.Object.setPrototypeOf({copy: T$9.__ToStringAttribute()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.LocaleStringAttribute))));
  dart.setLibraryUri(ui.LocaleStringAttribute, I[198]);
  dart.setFieldSignature(ui.LocaleStringAttribute, () => dart.global.Object.setPrototypeOf({locale: {type: T$9.Locale(), isConst: false, isFinal: true, libraryUri: I[198]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.LocaleStringAttribute))));
  dart.defineExtensionMethods(ui.LocaleStringAttribute, ['toString']);
  var _nodeUpdates = dart.privateName(ui, "_nodeUpdates");
  ui.SemanticsUpdateBuilder = class SemanticsUpdateBuilder extends core.Object {
    static ['_#new#tearOff']() {
      return new ui.SemanticsUpdateBuilder.new();
    }
    updateNode(opts) {
      let id = opts && 'id' in opts ? opts.id : null;
      if (id == null) dart.nullFailed(I[208], 256, 18, "id");
      let flags = opts && 'flags' in opts ? opts.flags : null;
      if (flags == null) dart.nullFailed(I[208], 257, 18, "flags");
      let actions = opts && 'actions' in opts ? opts.actions : null;
      if (actions == null) dart.nullFailed(I[208], 258, 18, "actions");
      let maxValueLength = opts && 'maxValueLength' in opts ? opts.maxValueLength : null;
      if (maxValueLength == null) dart.nullFailed(I[208], 259, 18, "maxValueLength");
      let currentValueLength = opts && 'currentValueLength' in opts ? opts.currentValueLength : null;
      if (currentValueLength == null) dart.nullFailed(I[208], 260, 18, "currentValueLength");
      let textSelectionBase = opts && 'textSelectionBase' in opts ? opts.textSelectionBase : null;
      if (textSelectionBase == null) dart.nullFailed(I[208], 261, 18, "textSelectionBase");
      let textSelectionExtent = opts && 'textSelectionExtent' in opts ? opts.textSelectionExtent : null;
      if (textSelectionExtent == null) dart.nullFailed(I[208], 262, 18, "textSelectionExtent");
      let platformViewId = opts && 'platformViewId' in opts ? opts.platformViewId : null;
      if (platformViewId == null) dart.nullFailed(I[208], 263, 18, "platformViewId");
      let scrollChildren = opts && 'scrollChildren' in opts ? opts.scrollChildren : null;
      if (scrollChildren == null) dart.nullFailed(I[208], 264, 18, "scrollChildren");
      let scrollIndex = opts && 'scrollIndex' in opts ? opts.scrollIndex : null;
      if (scrollIndex == null) dart.nullFailed(I[208], 265, 18, "scrollIndex");
      let scrollPosition = opts && 'scrollPosition' in opts ? opts.scrollPosition : null;
      if (scrollPosition == null) dart.nullFailed(I[208], 266, 21, "scrollPosition");
      let scrollExtentMax = opts && 'scrollExtentMax' in opts ? opts.scrollExtentMax : null;
      if (scrollExtentMax == null) dart.nullFailed(I[208], 267, 21, "scrollExtentMax");
      let scrollExtentMin = opts && 'scrollExtentMin' in opts ? opts.scrollExtentMin : null;
      if (scrollExtentMin == null) dart.nullFailed(I[208], 268, 21, "scrollExtentMin");
      let elevation = opts && 'elevation' in opts ? opts.elevation : null;
      if (elevation == null) dart.nullFailed(I[208], 269, 21, "elevation");
      let thickness = opts && 'thickness' in opts ? opts.thickness : null;
      if (thickness == null) dart.nullFailed(I[208], 270, 21, "thickness");
      let rect = opts && 'rect' in opts ? opts.rect : null;
      if (rect == null) dart.nullFailed(I[208], 271, 19, "rect");
      let identifier = opts && 'identifier' in opts ? opts.identifier : null;
      if (identifier == null) dart.nullFailed(I[208], 272, 21, "identifier");
      let label = opts && 'label' in opts ? opts.label : null;
      if (label == null) dart.nullFailed(I[208], 273, 21, "label");
      let labelAttributes = opts && 'labelAttributes' in opts ? opts.labelAttributes : null;
      if (labelAttributes == null) dart.nullFailed(I[208], 274, 36, "labelAttributes");
      let value = opts && 'value' in opts ? opts.value : null;
      if (value == null) dart.nullFailed(I[208], 275, 21, "value");
      let valueAttributes = opts && 'valueAttributes' in opts ? opts.valueAttributes : null;
      if (valueAttributes == null) dart.nullFailed(I[208], 276, 36, "valueAttributes");
      let increasedValue = opts && 'increasedValue' in opts ? opts.increasedValue : null;
      if (increasedValue == null) dart.nullFailed(I[208], 277, 21, "increasedValue");
      let increasedValueAttributes = opts && 'increasedValueAttributes' in opts ? opts.increasedValueAttributes : null;
      if (increasedValueAttributes == null) dart.nullFailed(I[208], 278, 36, "increasedValueAttributes");
      let decreasedValue = opts && 'decreasedValue' in opts ? opts.decreasedValue : null;
      if (decreasedValue == null) dart.nullFailed(I[208], 279, 21, "decreasedValue");
      let decreasedValueAttributes = opts && 'decreasedValueAttributes' in opts ? opts.decreasedValueAttributes : null;
      if (decreasedValueAttributes == null) dart.nullFailed(I[208], 280, 36, "decreasedValueAttributes");
      let hint = opts && 'hint' in opts ? opts.hint : null;
      if (hint == null) dart.nullFailed(I[208], 281, 21, "hint");
      let hintAttributes = opts && 'hintAttributes' in opts ? opts.hintAttributes : null;
      if (hintAttributes == null) dart.nullFailed(I[208], 282, 36, "hintAttributes");
      let tooltip = opts && 'tooltip' in opts ? opts.tooltip : null;
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      let transform = opts && 'transform' in opts ? opts.transform : null;
      if (transform == null) dart.nullFailed(I[208], 285, 26, "transform");
      let childrenInTraversalOrder = opts && 'childrenInTraversalOrder' in opts ? opts.childrenInTraversalOrder : null;
      if (childrenInTraversalOrder == null) dart.nullFailed(I[208], 286, 24, "childrenInTraversalOrder");
      let childrenInHitTestOrder = opts && 'childrenInHitTestOrder' in opts ? opts.childrenInHitTestOrder : null;
      if (childrenInHitTestOrder == null) dart.nullFailed(I[208], 287, 24, "childrenInHitTestOrder");
      let additionalActions = opts && 'additionalActions' in opts ? opts.additionalActions : null;
      if (additionalActions == null) dart.nullFailed(I[208], 288, 24, "additionalActions");
      let headingLevel = opts && 'headingLevel' in opts ? opts.headingLevel : 0;
      if (headingLevel == null) dart.nullFailed(I[208], 289, 9, "headingLevel");
      if (transform[$length] !== 16) {
        dart.throw(new core.ArgumentError.new("transform argument must have 16 entries."));
      }
      this[_nodeUpdates][$add](new _engine.SemanticsNodeUpdate.new({id: id, flags: flags, actions: actions, maxValueLength: maxValueLength, currentValueLength: currentValueLength, textSelectionBase: textSelectionBase, textSelectionExtent: textSelectionExtent, scrollChildren: scrollChildren, scrollIndex: scrollIndex, scrollPosition: scrollPosition, scrollExtentMax: scrollExtentMax, scrollExtentMin: scrollExtentMin, rect: rect, identifier: identifier, label: label, labelAttributes: labelAttributes, value: value, valueAttributes: valueAttributes, increasedValue: increasedValue, increasedValueAttributes: increasedValueAttributes, decreasedValue: decreasedValue, decreasedValueAttributes: decreasedValueAttributes, hint: hint, hintAttributes: hintAttributes, tooltip: tooltip, textDirection: textDirection, transform: _engine.toMatrix32(transform), elevation: elevation, thickness: thickness, childrenInTraversalOrder: childrenInTraversalOrder, childrenInHitTestOrder: childrenInHitTestOrder, additionalActions: additionalActions, platformViewId: platformViewId, headingLevel: headingLevel}));
    }
    updateCustomAction(opts) {
      let id = opts && 'id' in opts ? opts.id : null;
      if (id == null) dart.nullFailed(I[208], 333, 18, "id");
      let label = opts && 'label' in opts ? opts.label : null;
      let hint = opts && 'hint' in opts ? opts.hint : null;
      let overrideId = opts && 'overrideId' in opts ? opts.overrideId : -1;
      if (overrideId == null) dart.nullFailed(I[208], 336, 9, "overrideId");
    }
    build() {
      return new _engine.SemanticsUpdate.new({nodeUpdates: this[_nodeUpdates]});
    }
  };
  (ui.SemanticsUpdateBuilder.new = function() {
    this[_nodeUpdates] = G$.JSArrayOfSemanticsNodeUpdate().of([]);
    ;
  }).prototype = ui.SemanticsUpdateBuilder.prototype;
  dart.addRtiResources(ui.SemanticsUpdateBuilder, ["ui|SemanticsUpdateBuilder"]);
  dart.setMethodSignature(ui.SemanticsUpdateBuilder, () => dart.global.Object.setPrototypeOf({
    updateNode: T$9.__Tovoid$8(),
    updateCustomAction: T$9.__Tovoid$9(),
    build: T$9.VoidToSemanticsUpdate()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.SemanticsUpdateBuilder))));
  dart.setLibraryUri(ui.SemanticsUpdateBuilder, I[198]);
  dart.setFieldSignature(ui.SemanticsUpdateBuilder, () => dart.global.Object.setPrototypeOf({[_nodeUpdates]: {type: T$9.ListOfSemanticsNodeUpdate(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.SemanticsUpdateBuilder))));
  ui.SemanticsUpdate = class SemanticsUpdate extends core.Object {
    static ['_#_#tearOff'](opts) {
      let nodeUpdates = opts && 'nodeUpdates' in opts ? opts.nodeUpdates : null;
      return new _engine.SemanticsUpdate.new({nodeUpdates: nodeUpdates});
    }
  };
  (ui.SemanticsUpdate[dart.mixinNew] = function() {
  }).prototype = ui.SemanticsUpdate.prototype;
  dart.addRtiResources(ui.SemanticsUpdate, ["ui|SemanticsUpdate"]);
  dart.setStaticMethodSignature(ui.SemanticsUpdate, () => ['__']);
  dart.setLibraryUri(ui.SemanticsUpdate, I[198]);
  ui.FontStyle = class FontStyle extends core._Enum {
    [_enumToString]() {
      return "FontStyle." + dart.str(this[_name$]);
    }
  };
  (ui.FontStyle.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 12, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 12, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.FontStyle).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.FontStyle.prototype;
  dart.addRtiResources(ui.FontStyle, ["ui|FontStyle"]);
  dart.setMethodSignature(ui.FontStyle, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.FontStyle))));
  dart.setLibraryUri(ui.FontStyle, I[198]);
  dart.setStaticFieldSignature(ui.FontStyle, () => ['values', 'normal', 'italic']);
  dart.defineLazy(ui.FontStyle, {
    /*ui.FontStyle.values*/get values() {
      return C[739] || CT.C739;
    },
    /*ui.FontStyle.normal*/get normal() {
      return C[740] || CT.C740;
    },
    /*ui.FontStyle.italic*/get italic() {
      return C[741] || CT.C741;
    }
  }, false);
  ui.PlaceholderAlignment = class PlaceholderAlignment extends core._Enum {
    [_enumToString]() {
      return "PlaceholderAlignment." + dart.str(this[_name$]);
    }
  };
  (ui.PlaceholderAlignment.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 17, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 17, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.PlaceholderAlignment).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.PlaceholderAlignment.prototype;
  dart.addRtiResources(ui.PlaceholderAlignment, ["ui|PlaceholderAlignment"]);
  dart.setMethodSignature(ui.PlaceholderAlignment, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.PlaceholderAlignment))));
  dart.setLibraryUri(ui.PlaceholderAlignment, I[198]);
  dart.setStaticFieldSignature(ui.PlaceholderAlignment, () => ['values', 'baseline', 'aboveBaseline', 'belowBaseline', 'top', 'bottom', 'middle']);
  dart.defineLazy(ui.PlaceholderAlignment, {
    /*ui.PlaceholderAlignment.values*/get values() {
      return C[742] || CT.C742;
    },
    /*ui.PlaceholderAlignment.baseline*/get baseline() {
      return C[743] || CT.C743;
    },
    /*ui.PlaceholderAlignment.aboveBaseline*/get aboveBaseline() {
      return C[744] || CT.C744;
    },
    /*ui.PlaceholderAlignment.belowBaseline*/get belowBaseline() {
      return C[745] || CT.C745;
    },
    /*ui.PlaceholderAlignment.top*/get top() {
      return C[746] || CT.C746;
    },
    /*ui.PlaceholderAlignment.bottom*/get bottom() {
      return C[747] || CT.C747;
    },
    /*ui.PlaceholderAlignment.middle*/get middle() {
      return C[748] || CT.C748;
    }
  }, false);
  var index$2 = dart.privateName(ui, "FontWeight.index");
  var value$5 = dart.privateName(ui, "FontWeight.value");
  ui.FontWeight = class FontWeight extends core.Object {
    get index() {
      return this[index$2];
    }
    set index(value) {
      super.index = value;
    }
    get value() {
      return this[value$5];
    }
    set value(value) {
      super.value = value;
    }
    static ['_#_#tearOff'](index, value) {
      if (index == null) dart.nullFailed(I[209], 27, 27, "index");
      if (value == null) dart.nullFailed(I[209], 27, 39, "value");
      return new ui.FontWeight.__(index, value);
    }
    static lerp(a, b, t) {
      let t$36466, t$36466$, t$36466$0, t$36466$1;
      if (t == null) dart.nullFailed(I[209], 52, 64, "t");
      if (a == null && b == null) {
        return null;
      }
      return ui.FontWeight.values[$_get](_engine.clampInt(dart.nullCheck(ui.lerpDouble((t$36466$ = (t$36466 = a, t$36466 == null ? null : t$36466.index), t$36466$ == null ? ui.FontWeight.normal.index : t$36466$), (t$36466$1 = (t$36466$0 = b, t$36466$0 == null ? null : t$36466$0.index), t$36466$1 == null ? ui.FontWeight.normal.index : t$36466$1), t))[$round](), 0, 8));
    }
    toString() {
      return dart.nullCheck((C[749] || CT.C749)[$_get](this.index));
    }
  };
  (ui.FontWeight.__ = function(index, value) {
    if (index == null) dart.nullFailed(I[209], 27, 27, "index");
    if (value == null) dart.nullFailed(I[209], 27, 39, "value");
    this[index$2] = index;
    this[value$5] = value;
    ;
  }).prototype = ui.FontWeight.prototype;
  dart.addRtiResources(ui.FontWeight, ["ui|FontWeight"]);
  dart.setStaticMethodSignature(ui.FontWeight, () => ['lerp']);
  dart.setLibraryUri(ui.FontWeight, I[198]);
  dart.setFieldSignature(ui.FontWeight, () => dart.global.Object.setPrototypeOf({
    index: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    value: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.FontWeight))));
  dart.setStaticFieldSignature(ui.FontWeight, () => ['w100', 'w200', 'w300', 'w400', 'w500', 'w600', 'w700', 'w800', 'w900', 'normal', 'bold', 'values']);
  dart.defineExtensionMethods(ui.FontWeight, ['toString']);
  dart.defineLazy(ui.FontWeight, {
    /*ui.FontWeight.w100*/get w100() {
      return C[750] || CT.C750;
    },
    /*ui.FontWeight.w200*/get w200() {
      return C[751] || CT.C751;
    },
    /*ui.FontWeight.w300*/get w300() {
      return C[752] || CT.C752;
    },
    /*ui.FontWeight.w400*/get w400() {
      return C[753] || CT.C753;
    },
    /*ui.FontWeight.w500*/get w500() {
      return C[754] || CT.C754;
    },
    /*ui.FontWeight.w600*/get w600() {
      return C[755] || CT.C755;
    },
    /*ui.FontWeight.w700*/get w700() {
      return C[756] || CT.C756;
    },
    /*ui.FontWeight.w800*/get w800() {
      return C[757] || CT.C757;
    },
    /*ui.FontWeight.w900*/get w900() {
      return C[758] || CT.C758;
    },
    /*ui.FontWeight.normal*/get normal() {
      return C[753] || CT.C753;
    },
    /*ui.FontWeight.bold*/get bold() {
      return C[756] || CT.C756;
    },
    /*ui.FontWeight.values*/get values() {
      return C[759] || CT.C759;
    }
  }, false);
  var feature$ = dart.privateName(ui, "FontFeature.feature");
  var value$6 = dart.privateName(ui, "FontFeature.value");
  ui.FontFeature = class FontFeature extends core.Object {
    get feature() {
      return this[feature$];
    }
    set feature(value) {
      super.feature = value;
    }
    get value() {
      return this[value$6];
    }
    set value(value) {
      super.value = value;
    }
    static ['_#new#tearOff'](feature, value = 1) {
      if (feature == null) dart.nullFailed(I[209], 81, 26, "feature");
      if (value == null) dart.nullFailed(I[209], 81, 41, "value");
      return new ui.FontFeature.new(feature, value);
    }
    static ['_#enable#tearOff'](feature) {
      if (feature == null) dart.nullFailed(I[209], 85, 35, "feature");
      return new ui.FontFeature.enable(feature);
    }
    static ['_#disable#tearOff'](feature) {
      if (feature == null) dart.nullFailed(I[209], 86, 36, "feature");
      return new ui.FontFeature.disable(feature);
    }
    static ['_#alternative#tearOff'](value) {
      if (value == null) dart.nullFailed(I[209], 87, 38, "value");
      return new ui.FontFeature.alternative(value);
    }
    static ['_#alternativeFractions#tearOff']() {
      return new ui.FontFeature.alternativeFractions();
    }
    static ['_#contextualAlternates#tearOff']() {
      return new ui.FontFeature.contextualAlternates();
    }
    static ['_#caseSensitiveForms#tearOff']() {
      return new ui.FontFeature.caseSensitiveForms();
    }
    static characterVariant(value) {
      if (value == null) dart.nullFailed(I[209], 97, 44, "value");
      if (!(dart.notNull(value) >= 1)) dart.assertFailed(null, I[209], 98, 12, "value >= 1");
      if (!(dart.notNull(value) <= 20)) dart.assertFailed(null, I[209], 99, 12, "value <= 20");
      return new ui.FontFeature.new("cv" + dart.toString(value)[$padLeft](2, "0"));
    }
    static ['_#characterVariant#tearOff'](value) {
      if (value == null) dart.nullFailed(I[209], 97, 44, "value");
      return ui.FontFeature.characterVariant(value);
    }
    static ['_#denominator#tearOff']() {
      return new ui.FontFeature.denominator();
    }
    static ['_#fractions#tearOff']() {
      return new ui.FontFeature.fractions();
    }
    static ['_#historicalForms#tearOff']() {
      return new ui.FontFeature.historicalForms();
    }
    static ['_#historicalLigatures#tearOff']() {
      return new ui.FontFeature.historicalLigatures();
    }
    static ['_#liningFigures#tearOff']() {
      return new ui.FontFeature.liningFigures();
    }
    static ['_#localeAware#tearOff'](opts) {
      let enable = opts && 'enable' in opts ? opts.enable : true;
      if (enable == null) dart.nullFailed(I[209], 117, 39, "enable");
      return new ui.FontFeature.localeAware({enable: enable});
    }
    static ['_#notationalForms#tearOff'](value = 1) {
      if (value == null) dart.nullFailed(I[209], 120, 43, "value");
      return new ui.FontFeature.notationalForms(value);
    }
    static ['_#numerators#tearOff']() {
      return new ui.FontFeature.numerators();
    }
    static ['_#oldstyleFigures#tearOff']() {
      return new ui.FontFeature.oldstyleFigures();
    }
    static ['_#ordinalForms#tearOff']() {
      return new ui.FontFeature.ordinalForms();
    }
    static ['_#proportionalFigures#tearOff']() {
      return new ui.FontFeature.proportionalFigures();
    }
    static ['_#randomize#tearOff']() {
      return new ui.FontFeature.randomize();
    }
    static ['_#stylisticAlternates#tearOff']() {
      return new ui.FontFeature.stylisticAlternates();
    }
    static ['_#scientificInferiors#tearOff']() {
      return new ui.FontFeature.scientificInferiors();
    }
    static stylisticSet(value) {
      if (value == null) dart.nullFailed(I[209], 144, 40, "value");
      if (!(dart.notNull(value) >= 1)) dart.assertFailed(null, I[209], 145, 12, "value >= 1");
      if (!(dart.notNull(value) <= 20)) dart.assertFailed(null, I[209], 146, 12, "value <= 20");
      return new ui.FontFeature.new("ss" + dart.toString(value)[$padLeft](2, "0"));
    }
    static ['_#stylisticSet#tearOff'](value) {
      if (value == null) dart.nullFailed(I[209], 144, 40, "value");
      return ui.FontFeature.stylisticSet(value);
    }
    static ['_#subscripts#tearOff']() {
      return new ui.FontFeature.subscripts();
    }
    static ['_#superscripts#tearOff']() {
      return new ui.FontFeature.superscripts();
    }
    static ['_#swash#tearOff'](value = 1) {
      if (value == null) dart.nullFailed(I[209], 155, 33, "value");
      return new ui.FontFeature.swash(value);
    }
    static ['_#tabularFigures#tearOff']() {
      return new ui.FontFeature.tabularFigures();
    }
    static ['_#slashedZero#tearOff']() {
      return new ui.FontFeature.slashedZero();
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$9.FontFeature()[_is](other) && other.feature == this.feature && other.value == this.value;
    }
    get hashCode() {
      return core.Object.hash(this.feature, this.value);
    }
    toString() {
      return "FontFeature('" + dart.str(this.feature) + "', " + dart.str(this.value) + ")";
    }
  };
  (ui.FontFeature.new = function(feature, value = 1) {
    if (feature == null) dart.nullFailed(I[209], 81, 26, "feature");
    if (value == null) dart.nullFailed(I[209], 81, 41, "value");
    this[feature$] = feature;
    this[value$6] = value;
    if (!(feature.length === 4)) dart.assertFailed("Feature tag must be exactly four characters long.", I[209], 82, 16, "feature.length == 4");
    if (!(dart.notNull(value) >= 0)) dart.assertFailed("Feature value must be zero or a positive integer.", I[209], 84, 16, "value >= 0");
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.enable = function(feature) {
    if (feature == null) dart.nullFailed(I[209], 85, 35, "feature");
    ui.FontFeature.new.call(this, feature, 1);
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.disable = function(feature) {
    if (feature == null) dart.nullFailed(I[209], 86, 36, "feature");
    ui.FontFeature.new.call(this, feature, 0);
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.alternative = function(value) {
    if (value == null) dart.nullFailed(I[209], 87, 38, "value");
    this[value$6] = value;
    this[feature$] = "aalt";
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.alternativeFractions = function() {
    this[feature$] = "afrc";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.contextualAlternates = function() {
    this[feature$] = "calt";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.caseSensitiveForms = function() {
    this[feature$] = "case";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.denominator = function() {
    this[feature$] = "dnom";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.fractions = function() {
    this[feature$] = "frac";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.historicalForms = function() {
    this[feature$] = "hist";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.historicalLigatures = function() {
    this[feature$] = "hlig";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.liningFigures = function() {
    this[feature$] = "lnum";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.localeAware = function(opts) {
    let enable = opts && 'enable' in opts ? opts.enable : true;
    if (enable == null) dart.nullFailed(I[209], 117, 39, "enable");
    this[feature$] = "locl";
    this[value$6] = dart.test(enable) ? 1 : 0;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.notationalForms = function(value = 1) {
    if (value == null) dart.nullFailed(I[209], 120, 43, "value");
    this[value$6] = value;
    this[feature$] = "nalt";
    if (!(dart.notNull(value) >= 0)) dart.assertFailed(null, I[209], 122, 16, "value >= 0");
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.numerators = function() {
    this[feature$] = "numr";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.oldstyleFigures = function() {
    this[feature$] = "onum";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.ordinalForms = function() {
    this[feature$] = "ordn";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.proportionalFigures = function() {
    this[feature$] = "pnum";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.randomize = function() {
    this[feature$] = "rand";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.stylisticAlternates = function() {
    this[feature$] = "salt";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.scientificInferiors = function() {
    this[feature$] = "sinf";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.subscripts = function() {
    this[feature$] = "subs";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.superscripts = function() {
    this[feature$] = "sups";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.swash = function(value = 1) {
    if (value == null) dart.nullFailed(I[209], 155, 33, "value");
    this[value$6] = value;
    this[feature$] = "swsh";
    if (!(dart.notNull(value) >= 0)) dart.assertFailed(null, I[209], 157, 16, "value >= 0");
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.tabularFigures = function() {
    this[feature$] = "tnum";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  (ui.FontFeature.slashedZero = function() {
    this[feature$] = "zero";
    this[value$6] = 1;
    ;
  }).prototype = ui.FontFeature.prototype;
  dart.addRtiResources(ui.FontFeature, ["ui|FontFeature"]);
  dart.setStaticMethodSignature(ui.FontFeature, () => ['characterVariant', 'stylisticSet']);
  dart.setLibraryUri(ui.FontFeature, I[198]);
  dart.setFieldSignature(ui.FontFeature, () => dart.global.Object.setPrototypeOf({
    feature: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    value: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.FontFeature))));
  dart.defineExtensionMethods(ui.FontFeature, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.FontFeature, ['hashCode']);
  var axis$ = dart.privateName(ui, "FontVariation.axis");
  var value$7 = dart.privateName(ui, "FontVariation.value");
  ui.FontVariation = class FontVariation extends core.Object {
    get axis() {
      return this[axis$];
    }
    set axis(value) {
      super.axis = value;
    }
    get value() {
      return this[value$7];
    }
    set value(value) {
      super.value = value;
    }
    static ['_#new#tearOff'](axis, value) {
      if (axis == null) dart.nullFailed(I[209], 187, 10, "axis");
      if (value == null) dart.nullFailed(I[209], 188, 10, "value");
      return new ui.FontVariation.new(axis, value);
    }
    static ['_#italic#tearOff'](value) {
      if (value == null) dart.nullFailed(I[209], 192, 35, "value");
      return new ui.FontVariation.italic(value);
    }
    static ['_#opticalSize#tearOff'](value) {
      if (value == null) dart.nullFailed(I[209], 193, 40, "value");
      return new ui.FontVariation.opticalSize(value);
    }
    static ['_#slant#tearOff'](value) {
      if (value == null) dart.nullFailed(I[209], 194, 34, "value");
      return new ui.FontVariation.slant(value);
    }
    static ['_#width#tearOff'](value) {
      if (value == null) dart.nullFailed(I[209], 195, 34, "value");
      return new ui.FontVariation.width(value);
    }
    static ['_#weight#tearOff'](value) {
      if (value == null) dart.nullFailed(I[209], 196, 35, "value");
      return new ui.FontVariation.weight(value);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$9.FontVariation()[_is](other) && other.axis == this.axis && other.value == this.value;
    }
    get hashCode() {
      return core.Object.hash(this.axis, this.value);
    }
    static lerp(a, b, t) {
      let t$36466, t$36466$;
      if (t == null) dart.nullFailed(I[209], 214, 73, "t");
      if ((t$36466 = a, t$36466 == null ? null : t$36466.axis) != (t$36466$ = b, t$36466$ == null ? null : t$36466$.axis) || a == null && b == null) {
        return dart.notNull(t) < 0.5 ? a : b;
      }
      return new ui.FontVariation.new(dart.nullCheck(a).axis, ui.clampDouble(dart.nullCheck(ui.lerpDouble(a.value, dart.nullCheck(b).value, t)), -32768.0, 32768.0 - 1.0 / 65536.0));
    }
    toString() {
      return "FontVariation('" + dart.str(this.axis) + "', " + dart.str(this.value) + ")";
    }
  };
  (ui.FontVariation.new = function(axis, value) {
    if (axis == null) dart.nullFailed(I[209], 187, 10, "axis");
    if (value == null) dart.nullFailed(I[209], 188, 10, "value");
    this[axis$] = axis;
    this[value$7] = value;
    if (!(axis.length === 4)) dart.assertFailed("Axis tag must be exactly four characters long.", I[209], 189, 14, "axis.length == 4");
    if (!(dart.notNull(value) >= -32768.0 && dart.notNull(value) < 32768.0)) dart.assertFailed("Value must be representable as a signed 16.16 fixed-point number, i.e. it must be in this range: -32768.0 ≤ value < 32768.0", I[209], 190, 14, "value >= -32768.0 && value < 32768.0");
    ;
  }).prototype = ui.FontVariation.prototype;
  (ui.FontVariation.italic = function(value) {
    if (value == null) dart.nullFailed(I[209], 192, 35, "value");
    this[value$7] = value;
    if (!(dart.notNull(value) >= 0.0)) dart.assertFailed(null, I[209], 192, 51, "value >= 0.0");
    if (!(dart.notNull(value) <= 1.0)) dart.assertFailed(null, I[209], 192, 73, "value <= 1.0");
    this[axis$] = "ital";
    ;
  }).prototype = ui.FontVariation.prototype;
  (ui.FontVariation.opticalSize = function(value) {
    if (value == null) dart.nullFailed(I[209], 193, 40, "value");
    this[value$7] = value;
    if (!(dart.notNull(value) > 0.0)) dart.assertFailed(null, I[209], 193, 56, "value > 0.0");
    this[axis$] = "opsz";
    ;
  }).prototype = ui.FontVariation.prototype;
  (ui.FontVariation.slant = function(value) {
    if (value == null) dart.nullFailed(I[209], 194, 34, "value");
    this[value$7] = value;
    if (!(dart.notNull(value) > -90.0)) dart.assertFailed(null, I[209], 194, 50, "value > -90.0");
    if (!(dart.notNull(value) < 90.0)) dart.assertFailed(null, I[209], 194, 73, "value < 90.0");
    this[axis$] = "slnt";
    ;
  }).prototype = ui.FontVariation.prototype;
  (ui.FontVariation.width = function(value) {
    if (value == null) dart.nullFailed(I[209], 195, 34, "value");
    this[value$7] = value;
    if (!(dart.notNull(value) >= 0.0)) dart.assertFailed(null, I[209], 195, 50, "value >= 0.0");
    this[axis$] = "wdth";
    ;
  }).prototype = ui.FontVariation.prototype;
  (ui.FontVariation.weight = function(value) {
    if (value == null) dart.nullFailed(I[209], 196, 35, "value");
    this[value$7] = value;
    if (!(dart.notNull(value) >= 1)) dart.assertFailed(null, I[209], 196, 51, "value >= 1");
    if (!(dart.notNull(value) <= 1000)) dart.assertFailed(null, I[209], 196, 71, "value <= 1000");
    this[axis$] = "wght";
    ;
  }).prototype = ui.FontVariation.prototype;
  dart.addRtiResources(ui.FontVariation, ["ui|FontVariation"]);
  dart.setStaticMethodSignature(ui.FontVariation, () => ['lerp']);
  dart.setLibraryUri(ui.FontVariation, I[198]);
  dart.setFieldSignature(ui.FontVariation, () => dart.global.Object.setPrototypeOf({
    axis: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    value: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.FontVariation))));
  dart.defineExtensionMethods(ui.FontVariation, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.FontVariation, ['hashCode']);
  var graphemeClusterLayoutBounds$ = dart.privateName(ui, "GlyphInfo.graphemeClusterLayoutBounds");
  var graphemeClusterCodeUnitRange$ = dart.privateName(ui, "GlyphInfo.graphemeClusterCodeUnitRange");
  var writingDirection$ = dart.privateName(ui, "GlyphInfo.writingDirection");
  ui.GlyphInfo = class GlyphInfo extends core.Object {
    get graphemeClusterLayoutBounds() {
      return this[graphemeClusterLayoutBounds$];
    }
    set graphemeClusterLayoutBounds(value) {
      super.graphemeClusterLayoutBounds = value;
    }
    get graphemeClusterCodeUnitRange() {
      return this[graphemeClusterCodeUnitRange$];
    }
    set graphemeClusterCodeUnitRange(value) {
      super.graphemeClusterCodeUnitRange = value;
    }
    get writingDirection() {
      return this[writingDirection$];
    }
    set writingDirection(value) {
      super.writingDirection = value;
    }
    static ['_#new#tearOff'](graphemeClusterLayoutBounds, graphemeClusterCodeUnitRange, writingDirection) {
      if (graphemeClusterLayoutBounds == null) dart.nullFailed(I[209], 229, 18, "graphemeClusterLayoutBounds");
      if (graphemeClusterCodeUnitRange == null) dart.nullFailed(I[209], 229, 52, "graphemeClusterCodeUnitRange");
      if (writingDirection == null) dart.nullFailed(I[209], 229, 87, "writingDirection");
      return new ui.GlyphInfo.new(graphemeClusterLayoutBounds, graphemeClusterCodeUnitRange, writingDirection);
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      return T$9.GlyphInfo()[_is](other) && dart.equals(this.graphemeClusterLayoutBounds, other.graphemeClusterLayoutBounds) && dart.equals(this.graphemeClusterCodeUnitRange, other.graphemeClusterCodeUnitRange) && this.writingDirection == other.writingDirection;
    }
    get hashCode() {
      return core.Object.hash(this.graphemeClusterLayoutBounds, this.graphemeClusterCodeUnitRange, this.writingDirection);
    }
    toString() {
      return "Glyph(" + dart.str(this.graphemeClusterLayoutBounds) + ", textRange: " + dart.str(this.graphemeClusterCodeUnitRange) + ", direction: " + dart.str(this.writingDirection) + ")";
    }
  };
  (ui.GlyphInfo.new = function(graphemeClusterLayoutBounds, graphemeClusterCodeUnitRange, writingDirection) {
    if (graphemeClusterLayoutBounds == null) dart.nullFailed(I[209], 229, 18, "graphemeClusterLayoutBounds");
    if (graphemeClusterCodeUnitRange == null) dart.nullFailed(I[209], 229, 52, "graphemeClusterCodeUnitRange");
    if (writingDirection == null) dart.nullFailed(I[209], 229, 87, "writingDirection");
    this[graphemeClusterLayoutBounds$] = graphemeClusterLayoutBounds;
    this[graphemeClusterCodeUnitRange$] = graphemeClusterCodeUnitRange;
    this[writingDirection$] = writingDirection;
    ;
  }).prototype = ui.GlyphInfo.prototype;
  dart.addRtiResources(ui.GlyphInfo, ["ui|GlyphInfo"]);
  dart.setLibraryUri(ui.GlyphInfo, I[198]);
  dart.setFieldSignature(ui.GlyphInfo, () => dart.global.Object.setPrototypeOf({
    graphemeClusterLayoutBounds: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    graphemeClusterCodeUnitRange: {type: T$9.TextRange(), isConst: false, isFinal: true, libraryUri: I[198]},
    writingDirection: {type: T$9.TextDirection(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.GlyphInfo))));
  dart.defineExtensionMethods(ui.GlyphInfo, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.GlyphInfo, ['hashCode']);
  ui.TextAlign = class TextAlign extends core._Enum {
    [_enumToString]() {
      return "TextAlign." + dart.str(this[_name$]);
    }
  };
  (ui.TextAlign.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 254, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 254, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.TextAlign).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.TextAlign.prototype;
  dart.addRtiResources(ui.TextAlign, ["ui|TextAlign"]);
  dart.setMethodSignature(ui.TextAlign, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TextAlign))));
  dart.setLibraryUri(ui.TextAlign, I[198]);
  dart.setStaticFieldSignature(ui.TextAlign, () => ['values', 'left', 'right', 'center', 'justify', 'start', 'end']);
  dart.defineLazy(ui.TextAlign, {
    /*ui.TextAlign.values*/get values() {
      return C[760] || CT.C760;
    },
    /*ui.TextAlign.left*/get left() {
      return C[761] || CT.C761;
    },
    /*ui.TextAlign.right*/get right() {
      return C[762] || CT.C762;
    },
    /*ui.TextAlign.center*/get center() {
      return C[763] || CT.C763;
    },
    /*ui.TextAlign.justify*/get justify() {
      return C[764] || CT.C764;
    },
    /*ui.TextAlign.start*/get start() {
      return C[765] || CT.C765;
    },
    /*ui.TextAlign.end*/get end() {
      return C[766] || CT.C766;
    }
  }, false);
  ui.TextBaseline = class TextBaseline extends core._Enum {
    [_enumToString]() {
      return "TextBaseline." + dart.str(this[_name$]);
    }
  };
  (ui.TextBaseline.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 263, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 263, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.TextBaseline).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.TextBaseline.prototype;
  dart.addRtiResources(ui.TextBaseline, ["ui|TextBaseline"]);
  dart.setMethodSignature(ui.TextBaseline, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TextBaseline))));
  dart.setLibraryUri(ui.TextBaseline, I[198]);
  dart.setStaticFieldSignature(ui.TextBaseline, () => ['values', 'alphabetic', 'ideographic']);
  dart.defineLazy(ui.TextBaseline, {
    /*ui.TextBaseline.values*/get values() {
      return C[767] || CT.C767;
    },
    /*ui.TextBaseline.alphabetic*/get alphabetic() {
      return C[768] || CT.C768;
    },
    /*ui.TextBaseline.ideographic*/get ideographic() {
      return C[769] || CT.C769;
    }
  }, false);
  var _mask$ = dart.privateName(ui, "TextDecoration._mask");
  var _mask = dart.privateName(ui, "_mask");
  ui.TextDecoration = class TextDecoration extends core.Object {
    get [_mask]() {
      return this[_mask$];
    }
    set [_mask](value) {
      super[_mask] = value;
    }
    static ['_#_#tearOff'](_mask) {
      if (_mask == null) dart.nullFailed(I[209], 269, 31, "_mask");
      return new ui.TextDecoration.__(_mask);
    }
    static combine(decorations) {
      if (decorations == null) dart.nullFailed(I[209], 270, 55, "decorations");
      let mask = 0;
      for (let decoration of decorations) {
        mask = (mask | dart.notNull(decoration[_mask])) >>> 0;
      }
      return new ui.TextDecoration.__(mask);
    }
    static ['_#combine#tearOff'](decorations) {
      if (decorations == null) dart.nullFailed(I[209], 270, 55, "decorations");
      return ui.TextDecoration.combine(decorations);
    }
    get maskValue() {
      return this[_mask];
    }
    contains(other) {
      if (other == null) dart.nullFailed(I[209], 282, 32, "other");
      return (dart.notNull(this[_mask]) | dart.notNull(other[_mask])) >>> 0 === this[_mask];
    }
    _equals(other) {
      if (other == null) return false;
      return T$9.TextDecoration()[_is](other) && other[_mask] == this[_mask];
    }
    get hashCode() {
      return dart.hashCode(this[_mask]);
    }
    toString() {
      if (this[_mask] === 0) {
        return "TextDecoration.none";
      }
      let values = G.JSArrayOfString().of([]);
      if ((dart.notNull(this[_mask]) & dart.notNull(ui.TextDecoration.underline[_mask])) !== 0) {
        values[$add]("underline");
      }
      if ((dart.notNull(this[_mask]) & dart.notNull(ui.TextDecoration.overline[_mask])) !== 0) {
        values[$add]("overline");
      }
      if ((dart.notNull(this[_mask]) & dart.notNull(ui.TextDecoration.lineThrough[_mask])) !== 0) {
        values[$add]("lineThrough");
      }
      if (values[$length] === 1) {
        return "TextDecoration." + dart.str(values[$_get](0));
      }
      return "TextDecoration.combine([" + dart.str(values[$join](", ")) + "])";
    }
  };
  (ui.TextDecoration.__ = function(_mask) {
    if (_mask == null) dart.nullFailed(I[209], 269, 31, "_mask");
    this[_mask$] = _mask;
    ;
  }).prototype = ui.TextDecoration.prototype;
  dart.addRtiResources(ui.TextDecoration, ["ui|TextDecoration"]);
  dart.setMethodSignature(ui.TextDecoration, () => dart.global.Object.setPrototypeOf({contains: T$9.TextDecorationTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TextDecoration))));
  dart.setStaticMethodSignature(ui.TextDecoration, () => ['combine']);
  dart.setGetterSignature(ui.TextDecoration, () => dart.global.Object.setPrototypeOf({maskValue: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(ui.TextDecoration))));
  dart.setLibraryUri(ui.TextDecoration, I[198]);
  dart.setFieldSignature(ui.TextDecoration, () => dart.global.Object.setPrototypeOf({[_mask]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.TextDecoration))));
  dart.setStaticFieldSignature(ui.TextDecoration, () => ['none', 'underline', 'overline', 'lineThrough']);
  dart.defineExtensionMethods(ui.TextDecoration, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.TextDecoration, ['hashCode']);
  dart.defineLazy(ui.TextDecoration, {
    /*ui.TextDecoration.none*/get none() {
      return C[770] || CT.C770;
    },
    /*ui.TextDecoration.underline*/get underline() {
      return C[771] || CT.C771;
    },
    /*ui.TextDecoration.overline*/get overline() {
      return C[772] || CT.C772;
    },
    /*ui.TextDecoration.lineThrough*/get lineThrough() {
      return C[773] || CT.C773;
    }
  }, false);
  ui.TextDecorationStyle = class TextDecorationStyle extends core._Enum {
    [_enumToString]() {
      return "TextDecorationStyle." + dart.str(this[_name$]);
    }
  };
  (ui.TextDecorationStyle.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 321, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 321, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.TextDecorationStyle).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.TextDecorationStyle.prototype;
  dart.addRtiResources(ui.TextDecorationStyle, ["ui|TextDecorationStyle"]);
  dart.setMethodSignature(ui.TextDecorationStyle, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TextDecorationStyle))));
  dart.setLibraryUri(ui.TextDecorationStyle, I[198]);
  dart.setStaticFieldSignature(ui.TextDecorationStyle, () => ['values', 'solid', 'double', 'dotted', 'dashed', 'wavy']);
  dart.defineLazy(ui.TextDecorationStyle, {
    /*ui.TextDecorationStyle.values*/get values() {
      return C[774] || CT.C774;
    },
    /*ui.TextDecorationStyle.solid*/get solid() {
      return C[775] || CT.C775;
    },
    /*ui.TextDecorationStyle.double*/get double() {
      return C[776] || CT.C776;
    },
    /*ui.TextDecorationStyle.dotted*/get dotted() {
      return C[777] || CT.C777;
    },
    /*ui.TextDecorationStyle.dashed*/get dashed() {
      return C[778] || CT.C778;
    },
    /*ui.TextDecorationStyle.wavy*/get wavy() {
      return C[779] || CT.C779;
    }
  }, false);
  ui.TextLeadingDistribution = class TextLeadingDistribution extends core._Enum {
    [_enumToString]() {
      return "TextLeadingDistribution." + dart.str(this[_name$]);
    }
  };
  (ui.TextLeadingDistribution.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 323, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 323, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.TextLeadingDistribution).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.TextLeadingDistribution.prototype;
  dart.addRtiResources(ui.TextLeadingDistribution, ["ui|TextLeadingDistribution"]);
  dart.setMethodSignature(ui.TextLeadingDistribution, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TextLeadingDistribution))));
  dart.setLibraryUri(ui.TextLeadingDistribution, I[198]);
  dart.setStaticFieldSignature(ui.TextLeadingDistribution, () => ['values', 'proportional', 'even']);
  dart.defineLazy(ui.TextLeadingDistribution, {
    /*ui.TextLeadingDistribution.values*/get values() {
      return C[780] || CT.C780;
    },
    /*ui.TextLeadingDistribution.proportional*/get proportional() {
      return C[781] || CT.C781;
    },
    /*ui.TextLeadingDistribution.even*/get even() {
      return C[782] || CT.C782;
    }
  }, false);
  var applyHeightToFirstAscent$ = dart.privateName(ui, "TextHeightBehavior.applyHeightToFirstAscent");
  var applyHeightToLastDescent$ = dart.privateName(ui, "TextHeightBehavior.applyHeightToLastDescent");
  var leadingDistribution$ = dart.privateName(ui, "TextHeightBehavior.leadingDistribution");
  ui.TextHeightBehavior = class TextHeightBehavior extends core.Object {
    get applyHeightToFirstAscent() {
      return this[applyHeightToFirstAscent$];
    }
    set applyHeightToFirstAscent(value) {
      super.applyHeightToFirstAscent = value;
    }
    get applyHeightToLastDescent() {
      return this[applyHeightToLastDescent$];
    }
    set applyHeightToLastDescent(value) {
      super.applyHeightToLastDescent = value;
    }
    get leadingDistribution() {
      return this[leadingDistribution$];
    }
    set leadingDistribution(value) {
      super.leadingDistribution = value;
    }
    static ['_#new#tearOff'](opts) {
      let applyHeightToFirstAscent = opts && 'applyHeightToFirstAscent' in opts ? opts.applyHeightToFirstAscent : true;
      if (applyHeightToFirstAscent == null) dart.nullFailed(I[209], 330, 10, "applyHeightToFirstAscent");
      let applyHeightToLastDescent = opts && 'applyHeightToLastDescent' in opts ? opts.applyHeightToLastDescent : true;
      if (applyHeightToLastDescent == null) dart.nullFailed(I[209], 331, 10, "applyHeightToLastDescent");
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : C[781] || CT.C781;
      if (leadingDistribution == null) dart.nullFailed(I[209], 332, 10, "leadingDistribution");
      return new ui.TextHeightBehavior.new({applyHeightToFirstAscent: applyHeightToFirstAscent, applyHeightToLastDescent: applyHeightToLastDescent, leadingDistribution: leadingDistribution});
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$9.TextHeightBehavior()[_is](other) && other.applyHeightToFirstAscent == this.applyHeightToFirstAscent && other.applyHeightToLastDescent == this.applyHeightToLastDescent && other.leadingDistribution == this.leadingDistribution;
    }
    get hashCode() {
      return core.Object.hash(this.applyHeightToFirstAscent, this.applyHeightToLastDescent);
    }
    toString() {
      return "TextHeightBehavior(" + "applyHeightToFirstAscent: " + dart.str(this.applyHeightToFirstAscent) + ", " + "applyHeightToLastDescent: " + dart.str(this.applyHeightToLastDescent) + ", " + "leadingDistribution: " + dart.str(this.leadingDistribution) + ")";
    }
  };
  (ui.TextHeightBehavior.new = function(opts) {
    let applyHeightToFirstAscent = opts && 'applyHeightToFirstAscent' in opts ? opts.applyHeightToFirstAscent : true;
    if (applyHeightToFirstAscent == null) dart.nullFailed(I[209], 330, 10, "applyHeightToFirstAscent");
    let applyHeightToLastDescent = opts && 'applyHeightToLastDescent' in opts ? opts.applyHeightToLastDescent : true;
    if (applyHeightToLastDescent == null) dart.nullFailed(I[209], 331, 10, "applyHeightToLastDescent");
    let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : C[781] || CT.C781;
    if (leadingDistribution == null) dart.nullFailed(I[209], 332, 10, "leadingDistribution");
    this[applyHeightToFirstAscent$] = applyHeightToFirstAscent;
    this[applyHeightToLastDescent$] = applyHeightToLastDescent;
    this[leadingDistribution$] = leadingDistribution;
    ;
  }).prototype = ui.TextHeightBehavior.prototype;
  dart.addRtiResources(ui.TextHeightBehavior, ["ui|TextHeightBehavior"]);
  dart.setLibraryUri(ui.TextHeightBehavior, I[198]);
  dart.setFieldSignature(ui.TextHeightBehavior, () => dart.global.Object.setPrototypeOf({
    applyHeightToFirstAscent: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    applyHeightToLastDescent: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    leadingDistribution: {type: T$9.TextLeadingDistribution(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.TextHeightBehavior))));
  dart.defineExtensionMethods(ui.TextHeightBehavior, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.TextHeightBehavior, ['hashCode']);
  ui.TextStyle = class TextStyle extends core.Object {
    static new(opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      return _engine.renderer.createTextStyle({color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, leadingDistribution: leadingDistribution, locale: locale, background: background, foreground: foreground, shadows: shadows, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
    static ['_#new#tearOff'](opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      return ui.TextStyle.new({color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, leadingDistribution: leadingDistribution, locale: locale, background: background, foreground: foreground, shadows: shadows, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
  };
  (ui.TextStyle[dart.mixinNew] = function() {
  }).prototype = ui.TextStyle.prototype;
  dart.addRtiResources(ui.TextStyle, ["ui|TextStyle"]);
  dart.setStaticMethodSignature(ui.TextStyle, () => ['new']);
  dart.setLibraryUri(ui.TextStyle, I[198]);
  ui.ParagraphStyle = class ParagraphStyle extends core.Object {
    static new(opts) {
      let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      let maxLines = opts && 'maxLines' in opts ? opts.maxLines : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let textHeightBehavior = opts && 'textHeightBehavior' in opts ? opts.textHeightBehavior : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let strutStyle = opts && 'strutStyle' in opts ? opts.strutStyle : null;
      let ellipsis = opts && 'ellipsis' in opts ? opts.ellipsis : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      return _engine.renderer.createParagraphStyle({textAlign: textAlign, textDirection: textDirection, maxLines: maxLines, fontFamily: fontFamily, fontSize: fontSize, height: height, textHeightBehavior: textHeightBehavior, fontWeight: fontWeight, fontStyle: fontStyle, strutStyle: strutStyle, ellipsis: ellipsis, locale: locale});
    }
    static ['_#new#tearOff'](opts) {
      let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      let maxLines = opts && 'maxLines' in opts ? opts.maxLines : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let textHeightBehavior = opts && 'textHeightBehavior' in opts ? opts.textHeightBehavior : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let strutStyle = opts && 'strutStyle' in opts ? opts.strutStyle : null;
      let ellipsis = opts && 'ellipsis' in opts ? opts.ellipsis : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      return ui.ParagraphStyle.new({textAlign: textAlign, textDirection: textDirection, maxLines: maxLines, fontFamily: fontFamily, fontSize: fontSize, height: height, textHeightBehavior: textHeightBehavior, fontWeight: fontWeight, fontStyle: fontStyle, strutStyle: strutStyle, ellipsis: ellipsis, locale: locale});
    }
  };
  (ui.ParagraphStyle[dart.mixinNew] = function() {
  }).prototype = ui.ParagraphStyle.prototype;
  dart.addRtiResources(ui.ParagraphStyle, ["ui|ParagraphStyle"]);
  dart.setStaticMethodSignature(ui.ParagraphStyle, () => ['new']);
  dart.setLibraryUri(ui.ParagraphStyle, I[198]);
  ui.StrutStyle = class StrutStyle extends core.Object {
    static new(opts) {
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let leading = opts && 'leading' in opts ? opts.leading : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let forceStrutHeight = opts && 'forceStrutHeight' in opts ? opts.forceStrutHeight : null;
      return _engine.renderer.createStrutStyle({fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, height: height, leadingDistribution: leadingDistribution, leading: leading, fontWeight: fontWeight, fontStyle: fontStyle, forceStrutHeight: forceStrutHeight});
    }
    static ['_#new#tearOff'](opts) {
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let leading = opts && 'leading' in opts ? opts.leading : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let forceStrutHeight = opts && 'forceStrutHeight' in opts ? opts.forceStrutHeight : null;
      return ui.StrutStyle.new({fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, height: height, leadingDistribution: leadingDistribution, leading: leading, fontWeight: fontWeight, fontStyle: fontStyle, forceStrutHeight: forceStrutHeight});
    }
  };
  (ui.StrutStyle[dart.mixinNew] = function() {
  }).prototype = ui.StrutStyle.prototype;
  dart.addRtiResources(ui.StrutStyle, ["ui|StrutStyle"]);
  dart.setStaticMethodSignature(ui.StrutStyle, () => ['new']);
  dart.setLibraryUri(ui.StrutStyle, I[198]);
  ui.TextDirection = class TextDirection extends core._Enum {
    [_enumToString]() {
      return "TextDirection." + dart.str(this[_name$]);
    }
  };
  (ui.TextDirection.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 506, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 506, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.TextDirection).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.TextDirection.prototype;
  dart.addRtiResources(ui.TextDirection, ["ui|TextDirection"]);
  dart.setMethodSignature(ui.TextDirection, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TextDirection))));
  dart.setLibraryUri(ui.TextDirection, I[198]);
  dart.setStaticFieldSignature(ui.TextDirection, () => ['values', 'rtl', 'ltr']);
  dart.defineLazy(ui.TextDirection, {
    /*ui.TextDirection.values*/get values() {
      return C[783] || CT.C783;
    },
    /*ui.TextDirection.rtl*/get rtl() {
      return C[784] || CT.C784;
    },
    /*ui.TextDirection.ltr*/get ltr() {
      return C[785] || CT.C785;
    }
  }, false);
  var left$3 = dart.privateName(ui, "TextBox.left");
  var top$3 = dart.privateName(ui, "TextBox.top");
  var right$1 = dart.privateName(ui, "TextBox.right");
  var bottom$1 = dart.privateName(ui, "TextBox.bottom");
  var direction$0 = dart.privateName(ui, "TextBox.direction");
  ui.TextBox = class TextBox extends core.Object {
    get left() {
      return this[left$3];
    }
    set left(value) {
      super.left = value;
    }
    get top() {
      return this[top$3];
    }
    set top(value) {
      super.top = value;
    }
    get right() {
      return this[right$1];
    }
    set right(value) {
      super.right = value;
    }
    get bottom() {
      return this[bottom$1];
    }
    set bottom(value) {
      super.bottom = value;
    }
    get direction() {
      return this[direction$0];
    }
    set direction(value) {
      super.direction = value;
    }
    static ['_#fromLTRBD#tearOff'](left, top, right, bottom, direction) {
      if (left == null) dart.nullFailed(I[209], 513, 10, "left");
      if (top == null) dart.nullFailed(I[209], 514, 10, "top");
      if (right == null) dart.nullFailed(I[209], 515, 10, "right");
      if (bottom == null) dart.nullFailed(I[209], 516, 10, "bottom");
      if (direction == null) dart.nullFailed(I[209], 517, 10, "direction");
      return new ui.TextBox.fromLTRBD(left, top, right, bottom, direction);
    }
    toRect() {
      return new ui.Rect.fromLTRB(this.left, this.top, this.right, this.bottom);
    }
    get start() {
      return this.direction == ui.TextDirection.ltr ? this.left : this.right;
    }
    get end() {
      return this.direction == ui.TextDirection.ltr ? this.right : this.left;
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$9.TextBox()[_is](other) && other.left == this.left && other.top == this.top && other.right == this.right && other.bottom == this.bottom && other.direction == this.direction;
    }
    get hashCode() {
      return core.Object.hash(this.left, this.top, this.right, this.bottom, this.direction);
    }
    toString() {
      return "TextBox.fromLTRBD(" + this.left[$toStringAsFixed](1) + ", " + this.top[$toStringAsFixed](1) + ", " + this.right[$toStringAsFixed](1) + ", " + this.bottom[$toStringAsFixed](1) + ", " + dart.str(this.direction) + ")";
    }
  };
  (ui.TextBox.fromLTRBD = function(left, top, right, bottom, direction) {
    if (left == null) dart.nullFailed(I[209], 513, 10, "left");
    if (top == null) dart.nullFailed(I[209], 514, 10, "top");
    if (right == null) dart.nullFailed(I[209], 515, 10, "right");
    if (bottom == null) dart.nullFailed(I[209], 516, 10, "bottom");
    if (direction == null) dart.nullFailed(I[209], 517, 10, "direction");
    this[left$3] = left;
    this[top$3] = top;
    this[right$1] = right;
    this[bottom$1] = bottom;
    this[direction$0] = direction;
    ;
  }).prototype = ui.TextBox.prototype;
  dart.addRtiResources(ui.TextBox, ["ui|TextBox"]);
  dart.setMethodSignature(ui.TextBox, () => dart.global.Object.setPrototypeOf({toRect: T$9.VoidToRect$1()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TextBox))));
  dart.setGetterSignature(ui.TextBox, () => dart.global.Object.setPrototypeOf({
    start: T$.double(),
    end: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.TextBox))));
  dart.setLibraryUri(ui.TextBox, I[198]);
  dart.setFieldSignature(ui.TextBox, () => dart.global.Object.setPrototypeOf({
    left: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    top: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    right: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    bottom: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    direction: {type: T$9.TextDirection(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.TextBox))));
  dart.defineExtensionMethods(ui.TextBox, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.TextBox, ['hashCode']);
  ui.TextAffinity = class TextAffinity extends core._Enum {
    [_enumToString]() {
      return "TextAffinity." + dart.str(this[_name$]);
    }
  };
  (ui.TextAffinity.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 558, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 558, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.TextAffinity).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.TextAffinity.prototype;
  dart.addRtiResources(ui.TextAffinity, ["ui|TextAffinity"]);
  dart.setMethodSignature(ui.TextAffinity, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TextAffinity))));
  dart.setLibraryUri(ui.TextAffinity, I[198]);
  dart.setStaticFieldSignature(ui.TextAffinity, () => ['values', 'upstream', 'downstream']);
  dart.defineLazy(ui.TextAffinity, {
    /*ui.TextAffinity.values*/get values() {
      return C[786] || CT.C786;
    },
    /*ui.TextAffinity.upstream*/get upstream() {
      return C[787] || CT.C787;
    },
    /*ui.TextAffinity.downstream*/get downstream() {
      return C[788] || CT.C788;
    }
  }, false);
  var offset$1 = dart.privateName(ui, "TextPosition.offset");
  var affinity$ = dart.privateName(ui, "TextPosition.affinity");
  ui.TextPosition = class TextPosition extends core.Object {
    get offset() {
      return this[offset$1];
    }
    set offset(value) {
      super.offset = value;
    }
    get affinity() {
      return this[affinity$];
    }
    set affinity(value) {
      super.affinity = value;
    }
    static ['_#new#tearOff'](opts) {
      let offset = opts && 'offset' in opts ? opts.offset : null;
      if (offset == null) dart.nullFailed(I[209], 565, 19, "offset");
      let affinity = opts && 'affinity' in opts ? opts.affinity : C[788] || CT.C788;
      if (affinity == null) dart.nullFailed(I[209], 566, 10, "affinity");
      return new ui.TextPosition.new({offset: offset, affinity: affinity});
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$9.TextPosition()[_is](other) && other.offset == this.offset && other.affinity == this.affinity;
    }
    get hashCode() {
      return core.Object.hash(this.offset, this.affinity);
    }
    toString() {
      return dart.str(dart.runtimeType(this)) + "(offset: " + dart.str(this.offset) + ", affinity: " + dart.str(this.affinity) + ")";
    }
  };
  (ui.TextPosition.new = function(opts) {
    let offset = opts && 'offset' in opts ? opts.offset : null;
    if (offset == null) dart.nullFailed(I[209], 565, 19, "offset");
    let affinity = opts && 'affinity' in opts ? opts.affinity : C[788] || CT.C788;
    if (affinity == null) dart.nullFailed(I[209], 566, 10, "affinity");
    this[offset$1] = offset;
    this[affinity$] = affinity;
    ;
  }).prototype = ui.TextPosition.prototype;
  dart.addRtiResources(ui.TextPosition, ["ui|TextPosition"]);
  dart.setLibraryUri(ui.TextPosition, I[198]);
  dart.setFieldSignature(ui.TextPosition, () => dart.global.Object.setPrototypeOf({
    offset: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    affinity: {type: T$9.TextAffinity(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.TextPosition))));
  dart.defineExtensionMethods(ui.TextPosition, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.TextPosition, ['hashCode']);
  var start$1 = dart.privateName(ui, "TextRange.start");
  var end$0 = dart.privateName(ui, "TextRange.end");
  ui.TextRange = class TextRange extends core.Object {
    get start() {
      return this[start$1];
    }
    set start(value) {
      super.start = value;
    }
    get end() {
      return this[end$0];
    }
    set end(value) {
      super.end = value;
    }
    static ['_#new#tearOff'](opts) {
      let start = opts && 'start' in opts ? opts.start : null;
      if (start == null) dart.nullFailed(I[209], 592, 19, "start");
      let end = opts && 'end' in opts ? opts.end : null;
      if (end == null) dart.nullFailed(I[209], 593, 19, "end");
      return new ui.TextRange.new({start: start, end: end});
    }
    static ['_#collapsed#tearOff'](offset) {
      if (offset == null) dart.nullFailed(I[209], 596, 33, "offset");
      return new ui.TextRange.collapsed(offset);
    }
    get isValid() {
      return dart.notNull(this.start) >= 0 && dart.notNull(this.end) >= 0;
    }
    get isCollapsed() {
      return this.start == this.end;
    }
    get isNormalized() {
      return dart.notNull(this.end) >= dart.notNull(this.start);
    }
    textBefore(text) {
      if (text == null) dart.nullFailed(I[209], 606, 28, "text");
      if (!dart.test(this.isNormalized)) dart.assertFailed(null, I[209], 607, 12, "isNormalized");
      return text[$substring](0, this.start);
    }
    textAfter(text) {
      if (text == null) dart.nullFailed(I[209], 611, 27, "text");
      if (!dart.test(this.isNormalized)) dart.assertFailed(null, I[209], 612, 12, "isNormalized");
      return text[$substring](this.end);
    }
    textInside(text) {
      if (text == null) dart.nullFailed(I[209], 616, 28, "text");
      if (!dart.test(this.isNormalized)) dart.assertFailed(null, I[209], 617, 12, "isNormalized");
      return text[$substring](this.start, this.end);
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      return T$9.TextRange()[_is](other) && other.start == this.start && other.end == this.end;
    }
    get hashCode() {
      return core.Object.hash(dart.hashCode(this.start), dart.hashCode(this.end));
    }
    toString() {
      return "TextRange(start: " + dart.str(this.start) + ", end: " + dart.str(this.end) + ")";
    }
  };
  (ui.TextRange.new = function(opts) {
    let start = opts && 'start' in opts ? opts.start : null;
    if (start == null) dart.nullFailed(I[209], 592, 19, "start");
    let end = opts && 'end' in opts ? opts.end : null;
    if (end == null) dart.nullFailed(I[209], 593, 19, "end");
    this[start$1] = start;
    this[end$0] = end;
    if (!(dart.notNull(start) >= -1)) dart.assertFailed(null, I[209], 594, 16, "start >= -1");
    if (!(dart.notNull(end) >= -1)) dart.assertFailed(null, I[209], 595, 16, "end >= -1");
    ;
  }).prototype = ui.TextRange.prototype;
  (ui.TextRange.collapsed = function(offset) {
    if (offset == null) dart.nullFailed(I[209], 596, 33, "offset");
    if (!(dart.notNull(offset) >= -1)) dart.assertFailed(null, I[209], 597, 16, "offset >= -1");
    this[start$1] = offset;
    this[end$0] = offset;
    ;
  }).prototype = ui.TextRange.prototype;
  dart.addRtiResources(ui.TextRange, ["ui|TextRange"]);
  dart.setMethodSignature(ui.TextRange, () => dart.global.Object.setPrototypeOf({
    textBefore: T$.StringToString(),
    textAfter: T$.StringToString(),
    textInside: T$.StringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TextRange))));
  dart.setGetterSignature(ui.TextRange, () => dart.global.Object.setPrototypeOf({
    isValid: T$.bool(),
    isCollapsed: T$.bool(),
    isNormalized: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui.TextRange))));
  dart.setLibraryUri(ui.TextRange, I[198]);
  dart.setFieldSignature(ui.TextRange, () => dart.global.Object.setPrototypeOf({
    start: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    end: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.TextRange))));
  dart.setStaticFieldSignature(ui.TextRange, () => ['empty']);
  dart.defineExtensionMethods(ui.TextRange, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.TextRange, ['hashCode']);
  dart.defineLazy(ui.TextRange, {
    /*ui.TextRange.empty*/get empty() {
      return C[789] || CT.C789;
    }
  }, false);
  var width$1 = dart.privateName(ui, "ParagraphConstraints.width");
  ui.ParagraphConstraints = class ParagraphConstraints extends core.Object {
    get width() {
      return this[width$1];
    }
    set width(value) {
      super.width = value;
    }
    static ['_#new#tearOff'](opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[209], 641, 19, "width");
      return new ui.ParagraphConstraints.new({width: width});
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$9.ParagraphConstraints()[_is](other) && other.width == this.width;
    }
    get hashCode() {
      return dart.hashCode(this.width);
    }
    toString() {
      return dart.str(dart.runtimeType(this)) + "(width: " + dart.str(this.width) + ")";
    }
  };
  (ui.ParagraphConstraints.new = function(opts) {
    let width = opts && 'width' in opts ? opts.width : null;
    if (width == null) dart.nullFailed(I[209], 641, 19, "width");
    this[width$1] = width;
    ;
  }).prototype = ui.ParagraphConstraints.prototype;
  dart.addRtiResources(ui.ParagraphConstraints, ["ui|ParagraphConstraints"]);
  dart.setLibraryUri(ui.ParagraphConstraints, I[198]);
  dart.setFieldSignature(ui.ParagraphConstraints, () => dart.global.Object.setPrototypeOf({width: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.ParagraphConstraints))));
  dart.defineExtensionMethods(ui.ParagraphConstraints, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.ParagraphConstraints, ['hashCode']);
  ui.BoxHeightStyle = class BoxHeightStyle extends core._Enum {
    [_enumToString]() {
      return "BoxHeightStyle." + dart.str(this[_name$]);
    }
  };
  (ui.BoxHeightStyle.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 660, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 660, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.BoxHeightStyle).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.BoxHeightStyle.prototype;
  dart.addRtiResources(ui.BoxHeightStyle, ["ui|BoxHeightStyle"]);
  dart.setMethodSignature(ui.BoxHeightStyle, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.BoxHeightStyle))));
  dart.setLibraryUri(ui.BoxHeightStyle, I[198]);
  dart.setStaticFieldSignature(ui.BoxHeightStyle, () => ['values', 'tight', 'max', 'includeLineSpacingMiddle', 'includeLineSpacingTop', 'includeLineSpacingBottom', 'strut']);
  dart.defineLazy(ui.BoxHeightStyle, {
    /*ui.BoxHeightStyle.values*/get values() {
      return C[790] || CT.C790;
    },
    /*ui.BoxHeightStyle.tight*/get tight() {
      return C[791] || CT.C791;
    },
    /*ui.BoxHeightStyle.max*/get max() {
      return C[792] || CT.C792;
    },
    /*ui.BoxHeightStyle.includeLineSpacingMiddle*/get includeLineSpacingMiddle() {
      return C[793] || CT.C793;
    },
    /*ui.BoxHeightStyle.includeLineSpacingTop*/get includeLineSpacingTop() {
      return C[794] || CT.C794;
    },
    /*ui.BoxHeightStyle.includeLineSpacingBottom*/get includeLineSpacingBottom() {
      return C[795] || CT.C795;
    },
    /*ui.BoxHeightStyle.strut*/get strut() {
      return C[796] || CT.C796;
    }
  }, false);
  ui.BoxWidthStyle = class BoxWidthStyle extends core._Enum {
    [_enumToString]() {
      return "BoxWidthStyle." + dart.str(this[_name$]);
    }
  };
  (ui.BoxWidthStyle.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[209], 669, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[209], 669, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.BoxWidthStyle).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.BoxWidthStyle.prototype;
  dart.addRtiResources(ui.BoxWidthStyle, ["ui|BoxWidthStyle"]);
  dart.setMethodSignature(ui.BoxWidthStyle, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.BoxWidthStyle))));
  dart.setLibraryUri(ui.BoxWidthStyle, I[198]);
  dart.setStaticFieldSignature(ui.BoxWidthStyle, () => ['values', 'tight', 'max']);
  dart.defineLazy(ui.BoxWidthStyle, {
    /*ui.BoxWidthStyle.values*/get values() {
      return C[797] || CT.C797;
    },
    /*ui.BoxWidthStyle.tight*/get tight() {
      return C[798] || CT.C798;
    },
    /*ui.BoxWidthStyle.max*/get max() {
      return C[799] || CT.C799;
    }
  }, false);
  ui.LineMetrics = class LineMetrics extends core.Object {
    static new(opts) {
      let hardBreak = opts && 'hardBreak' in opts ? opts.hardBreak : null;
      if (hardBreak == null) dart.nullFailed(I[209], 678, 19, "hardBreak");
      let ascent = opts && 'ascent' in opts ? opts.ascent : null;
      if (ascent == null) dart.nullFailed(I[209], 679, 21, "ascent");
      let descent = opts && 'descent' in opts ? opts.descent : null;
      if (descent == null) dart.nullFailed(I[209], 680, 21, "descent");
      let unscaledAscent = opts && 'unscaledAscent' in opts ? opts.unscaledAscent : null;
      if (unscaledAscent == null) dart.nullFailed(I[209], 681, 21, "unscaledAscent");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[209], 682, 21, "height");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[209], 683, 21, "width");
      let left = opts && 'left' in opts ? opts.left : null;
      if (left == null) dart.nullFailed(I[209], 684, 21, "left");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[209], 685, 21, "baseline");
      let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
      if (lineNumber == null) dart.nullFailed(I[209], 686, 18, "lineNumber");
      return _engine.renderer.createLineMetrics({hardBreak: hardBreak, ascent: ascent, descent: descent, unscaledAscent: unscaledAscent, height: height, width: width, left: left, baseline: baseline, lineNumber: lineNumber});
    }
    static ['_#new#tearOff'](opts) {
      let hardBreak = opts && 'hardBreak' in opts ? opts.hardBreak : null;
      if (hardBreak == null) dart.nullFailed(I[209], 678, 19, "hardBreak");
      let ascent = opts && 'ascent' in opts ? opts.ascent : null;
      if (ascent == null) dart.nullFailed(I[209], 679, 21, "ascent");
      let descent = opts && 'descent' in opts ? opts.descent : null;
      if (descent == null) dart.nullFailed(I[209], 680, 21, "descent");
      let unscaledAscent = opts && 'unscaledAscent' in opts ? opts.unscaledAscent : null;
      if (unscaledAscent == null) dart.nullFailed(I[209], 681, 21, "unscaledAscent");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[209], 682, 21, "height");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[209], 683, 21, "width");
      let left = opts && 'left' in opts ? opts.left : null;
      if (left == null) dart.nullFailed(I[209], 684, 21, "left");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[209], 685, 21, "baseline");
      let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
      if (lineNumber == null) dart.nullFailed(I[209], 686, 18, "lineNumber");
      return ui.LineMetrics.new({hardBreak: hardBreak, ascent: ascent, descent: descent, unscaledAscent: unscaledAscent, height: height, width: width, left: left, baseline: baseline, lineNumber: lineNumber});
    }
  };
  (ui.LineMetrics[dart.mixinNew] = function() {
  }).prototype = ui.LineMetrics.prototype;
  dart.addRtiResources(ui.LineMetrics, ["ui|LineMetrics"]);
  dart.setStaticMethodSignature(ui.LineMetrics, () => ['new']);
  dart.setLibraryUri(ui.LineMetrics, I[198]);
  ui.Paragraph = class Paragraph extends core.Object {};
  (ui.Paragraph.new = function() {
    ;
  }).prototype = ui.Paragraph.prototype;
  dart.addRtiResources(ui.Paragraph, ["ui|Paragraph"]);
  dart.setLibraryUri(ui.Paragraph, I[198]);
  ui.ParagraphBuilder = class ParagraphBuilder extends core.Object {
    static new(style) {
      if (style == null) dart.nullFailed(I[209], 738, 43, "style");
      return _engine.renderer.createParagraphBuilder(style);
    }
    static ['_#new#tearOff'](style) {
      if (style == null) dart.nullFailed(I[209], 738, 43, "style");
      return ui.ParagraphBuilder.new(style);
    }
  };
  (ui.ParagraphBuilder[dart.mixinNew] = function() {
  }).prototype = ui.ParagraphBuilder.prototype;
  dart.addRtiResources(ui.ParagraphBuilder, ["ui|ParagraphBuilder"]);
  dart.setStaticMethodSignature(ui.ParagraphBuilder, () => ['new']);
  dart.setLibraryUri(ui.ParagraphBuilder, I[198]);
  ui.TileMode = class TileMode extends core._Enum {
    [_enumToString]() {
      return "TileMode." + dart.str(this[_name$]);
    }
  };
  (ui.TileMode.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[210], 8, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[210], 8, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.TileMode).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.TileMode.prototype;
  dart.addRtiResources(ui.TileMode, ["ui|TileMode"]);
  dart.setMethodSignature(ui.TileMode, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.TileMode))));
  dart.setLibraryUri(ui.TileMode, I[198]);
  dart.setStaticFieldSignature(ui.TileMode, () => ['values', 'clamp', 'repeated', 'mirror', 'decal']);
  dart.defineLazy(ui.TileMode, {
    /*ui.TileMode.values*/get values() {
      return C[800] || CT.C800;
    },
    /*ui.TileMode.clamp*/get clamp() {
      return C[586] || CT.C586;
    },
    /*ui.TileMode.repeated*/get repeated() {
      return C[801] || CT.C801;
    },
    /*ui.TileMode.mirror*/get mirror() {
      return C[802] || CT.C802;
    },
    /*ui.TileMode.decal*/get decal() {
      return C[803] || CT.C803;
    }
  }, false);
  ui.Display = class Display extends core.Object {};
  (ui.Display.new = function() {
    ;
  }).prototype = ui.Display.prototype;
  dart.addRtiResources(ui.Display, ["ui|Display"]);
  dart.setLibraryUri(ui.Display, I[198]);
  ui.FlutterView = class FlutterView extends core.Object {
    updateSemantics(update) {
      if (update == null) dart.nullFailed(I[211], 28, 40, "update");
      return this.platformDispatcher.updateSemantics(update);
    }
  };
  (ui.FlutterView.new = function() {
    ;
  }).prototype = ui.FlutterView.prototype;
  dart.addRtiResources(ui.FlutterView, ["ui|FlutterView"]);
  dart.setMethodSignature(ui.FlutterView, () => dart.global.Object.setPrototypeOf({updateSemantics: T$9.SemanticsUpdateTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.FlutterView))));
  dart.setLibraryUri(ui.FlutterView, I[198]);
  ui.SingletonFlutterWindow = class SingletonFlutterWindow extends ui.FlutterView {};
  (ui.SingletonFlutterWindow.new = function() {
    ;
  }).prototype = ui.SingletonFlutterWindow.prototype;
  dart.addRtiResources(ui.SingletonFlutterWindow, ["ui|SingletonFlutterWindow"]);
  dart.setLibraryUri(ui.SingletonFlutterWindow, I[198]);
  ui.AccessibilityFeatures = class AccessibilityFeatures extends core.Object {};
  (ui.AccessibilityFeatures.new = function() {
    ;
  }).prototype = ui.AccessibilityFeatures.prototype;
  dart.addRtiResources(ui.AccessibilityFeatures, ["ui|AccessibilityFeatures"]);
  dart.setLibraryUri(ui.AccessibilityFeatures, I[198]);
  ui.Brightness = class Brightness extends core._Enum {
    [_enumToString]() {
      return "Brightness." + dart.str(this[_name$]);
    }
  };
  (ui.Brightness.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[211], 124, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[211], 124, 6, "#name");
    dart.global.Object.getPrototypeOf(ui.Brightness).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui.Brightness.prototype;
  dart.addRtiResources(ui.Brightness, ["ui|Brightness"]);
  dart.setMethodSignature(ui.Brightness, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.Brightness))));
  dart.setLibraryUri(ui.Brightness, I[198]);
  dart.setStaticFieldSignature(ui.Brightness, () => ['values', 'dark', 'light']);
  dart.defineLazy(ui.Brightness, {
    /*ui.Brightness.values*/get values() {
      return C[804] || CT.C804;
    },
    /*ui.Brightness.dark*/get dark() {
      return C[805] || CT.C805;
    },
    /*ui.Brightness.light*/get light() {
      return C[806] || CT.C806;
    }
  }, false);
  var _handle$ = dart.privateName(ui, "_handle");
  ui.CallbackHandle = class CallbackHandle extends core.Object {
    static ['_#fromRawHandle#tearOff'](_handle) {
      if (_handle == null) dart.nullFailed(I[211], 132, 37, "_handle");
      return new ui.CallbackHandle.fromRawHandle(_handle);
    }
    toRawHandle() {
      return this[_handle$];
    }
    _equals(other) {
      if (other == null) return false;
      return this === other;
    }
    get hashCode() {
      return super[$hashCode];
    }
  };
  (ui.CallbackHandle.fromRawHandle = function(_handle) {
    if (_handle == null) dart.nullFailed(I[211], 132, 37, "_handle");
    this[_handle$] = _handle;
    ;
  }).prototype = ui.CallbackHandle.prototype;
  dart.addRtiResources(ui.CallbackHandle, ["ui|CallbackHandle"]);
  dart.setMethodSignature(ui.CallbackHandle, () => dart.global.Object.setPrototypeOf({toRawHandle: T$.VoidToint()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.CallbackHandle))));
  dart.setLibraryUri(ui.CallbackHandle, I[198]);
  dart.setFieldSignature(ui.CallbackHandle, () => dart.global.Object.setPrototypeOf({[_handle$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui.CallbackHandle))));
  dart.defineExtensionMethods(ui.CallbackHandle, ['_equals']);
  dart.defineExtensionAccessors(ui.CallbackHandle, ['hashCode']);
  ui.PluginUtilities = class PluginUtilities extends core.Object {
    static getCallbackHandle(callback) {
      if (callback == null) dart.nullFailed(I[211], 148, 53, "callback");
      dart.throw(new core.UnimplementedError.new());
    }
    static getCallbackFromHandle(handle) {
      if (handle == null) dart.nullFailed(I[211], 152, 57, "handle");
      dart.throw(new core.UnimplementedError.new());
    }
  };
  (ui.PluginUtilities.new = function() {
    ;
  }).prototype = ui.PluginUtilities.prototype;
  dart.addRtiResources(ui.PluginUtilities, ["ui|PluginUtilities"]);
  dart.setStaticMethodSignature(ui.PluginUtilities, () => ['getCallbackHandle', 'getCallbackFromHandle']);
  dart.setLibraryUri(ui.PluginUtilities, I[198]);
  ui.IsolateNameServer = class IsolateNameServer extends core.Object {
    static lookupPortByName(name) {
      if (name == null) dart.nullFailed(I[211], 158, 42, "name");
      dart.throw(new core.UnimplementedError.new());
    }
    static registerPortWithName(port, name) {
      if (name == null) dart.nullFailed(I[211], 162, 57, "name");
      dart.throw(new core.UnimplementedError.new());
    }
    static removePortNameMapping(name) {
      if (name == null) dart.nullFailed(I[211], 166, 44, "name");
      dart.throw(new core.UnimplementedError.new());
    }
  };
  (ui.IsolateNameServer.new = function() {
    ;
  }).prototype = ui.IsolateNameServer.prototype;
  dart.addRtiResources(ui.IsolateNameServer, ["ui|IsolateNameServer"]);
  dart.setStaticMethodSignature(ui.IsolateNameServer, () => ['lookupPortByName', 'registerPortWithName', 'removePortNameMapping']);
  dart.setLibraryUri(ui.IsolateNameServer, I[198]);
  ui.FrameData = class FrameData extends core.Object {
    static ['_#webOnly#tearOff']() {
      return new ui.FrameData.webOnly();
    }
    get frameNumber() {
      return -1;
    }
  };
  (ui.FrameData.webOnly = function() {
    ;
  }).prototype = ui.FrameData.prototype;
  dart.addRtiResources(ui.FrameData, ["ui|FrameData"]);
  dart.setGetterSignature(ui.FrameData, () => dart.global.Object.setPrototypeOf({frameNumber: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(ui.FrameData))));
  dart.setLibraryUri(ui.FrameData, I[198]);
  var physicalTouchSlop$ = dart.privateName(ui, "GestureSettings.physicalTouchSlop");
  var physicalDoubleTapSlop$ = dart.privateName(ui, "GestureSettings.physicalDoubleTapSlop");
  ui.GestureSettings = class GestureSettings extends core.Object {
    get physicalTouchSlop() {
      return this[physicalTouchSlop$];
    }
    set physicalTouchSlop(value) {
      super.physicalTouchSlop = value;
    }
    get physicalDoubleTapSlop() {
      return this[physicalDoubleTapSlop$];
    }
    set physicalDoubleTapSlop(value) {
      super.physicalDoubleTapSlop = value;
    }
    static ['_#new#tearOff'](opts) {
      let physicalTouchSlop = opts && 'physicalTouchSlop' in opts ? opts.physicalTouchSlop : null;
      let physicalDoubleTapSlop = opts && 'physicalDoubleTapSlop' in opts ? opts.physicalDoubleTapSlop : null;
      return new ui.GestureSettings.new({physicalTouchSlop: physicalTouchSlop, physicalDoubleTapSlop: physicalDoubleTapSlop});
    }
    copyWith(opts) {
      let t$36486, t$36486$;
      let physicalTouchSlop = opts && 'physicalTouchSlop' in opts ? opts.physicalTouchSlop : null;
      let physicalDoubleTapSlop = opts && 'physicalDoubleTapSlop' in opts ? opts.physicalDoubleTapSlop : null;
      return new ui.GestureSettings.new({physicalTouchSlop: (t$36486 = physicalTouchSlop, t$36486 == null ? this.physicalTouchSlop : t$36486), physicalDoubleTapSlop: (t$36486$ = physicalDoubleTapSlop, t$36486$ == null ? this.physicalDoubleTapSlop : t$36486$)});
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$9.GestureSettings()[_is](other) && other.physicalTouchSlop == this.physicalTouchSlop && other.physicalDoubleTapSlop == this.physicalDoubleTapSlop;
    }
    get hashCode() {
      return core.Object.hash(this.physicalTouchSlop, this.physicalDoubleTapSlop);
    }
    toString() {
      return "GestureSettings(physicalTouchSlop: " + dart.str(this.physicalTouchSlop) + ", physicalDoubleTapSlop: " + dart.str(this.physicalDoubleTapSlop) + ")";
    }
  };
  (ui.GestureSettings.new = function(opts) {
    let physicalTouchSlop = opts && 'physicalTouchSlop' in opts ? opts.physicalTouchSlop : null;
    let physicalDoubleTapSlop = opts && 'physicalDoubleTapSlop' in opts ? opts.physicalDoubleTapSlop : null;
    this[physicalTouchSlop$] = physicalTouchSlop;
    this[physicalDoubleTapSlop$] = physicalDoubleTapSlop;
    ;
  }).prototype = ui.GestureSettings.prototype;
  dart.addRtiResources(ui.GestureSettings, ["ui|GestureSettings"]);
  dart.setMethodSignature(ui.GestureSettings, () => dart.global.Object.setPrototypeOf({copyWith: T$9.__ToGestureSettings()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui.GestureSettings))));
  dart.setLibraryUri(ui.GestureSettings, I[198]);
  dart.setFieldSignature(ui.GestureSettings, () => dart.global.Object.setPrototypeOf({
    physicalTouchSlop: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    physicalDoubleTapSlop: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui.GestureSettings))));
  dart.defineExtensionMethods(ui.GestureSettings, ['_equals', 'toString']);
  dart.defineExtensionAccessors(ui.GestureSettings, ['hashCode']);
  ui.toDegrees = function toDegrees(radians) {
    if (radians == null) dart.nullFailed(I[200], 9, 25, "radians");
    return dart.notNull(radians) * 180 / 3.141592653589793;
  };
  ui.hashValues = function hashValues(arg01, arg02, arg03 = C[807] || CT.C807, arg04 = C[807] || CT.C807, arg05 = C[807] || CT.C807, arg06 = C[807] || CT.C807, arg07 = C[807] || CT.C807, arg08 = C[807] || CT.C807, arg09 = C[807] || CT.C807, arg10 = C[807] || CT.C807, arg11 = C[807] || CT.C807, arg12 = C[807] || CT.C807, arg13 = C[807] || CT.C807, arg14 = C[807] || CT.C807, arg15 = C[807] || CT.C807, arg16 = C[807] || CT.C807, arg17 = C[807] || CT.C807, arg18 = C[807] || CT.C807, arg19 = C[807] || CT.C807, arg20 = C[807] || CT.C807) {
    let result = 0;
    result = ui._Jenkins.combine(result, arg01);
    result = ui._Jenkins.combine(result, arg02);
    if (!core.identical(arg03, ui._hashEnd)) {
      result = ui._Jenkins.combine(result, arg03);
      if (!core.identical(arg04, ui._hashEnd)) {
        result = ui._Jenkins.combine(result, arg04);
        if (!core.identical(arg05, ui._hashEnd)) {
          result = ui._Jenkins.combine(result, arg05);
          if (!core.identical(arg06, ui._hashEnd)) {
            result = ui._Jenkins.combine(result, arg06);
            if (!core.identical(arg07, ui._hashEnd)) {
              result = ui._Jenkins.combine(result, arg07);
              if (!core.identical(arg08, ui._hashEnd)) {
                result = ui._Jenkins.combine(result, arg08);
                if (!core.identical(arg09, ui._hashEnd)) {
                  result = ui._Jenkins.combine(result, arg09);
                  if (!core.identical(arg10, ui._hashEnd)) {
                    result = ui._Jenkins.combine(result, arg10);
                    if (!core.identical(arg11, ui._hashEnd)) {
                      result = ui._Jenkins.combine(result, arg11);
                      if (!core.identical(arg12, ui._hashEnd)) {
                        result = ui._Jenkins.combine(result, arg12);
                        if (!core.identical(arg13, ui._hashEnd)) {
                          result = ui._Jenkins.combine(result, arg13);
                          if (!core.identical(arg14, ui._hashEnd)) {
                            result = ui._Jenkins.combine(result, arg14);
                            if (!core.identical(arg15, ui._hashEnd)) {
                              result = ui._Jenkins.combine(result, arg15);
                              if (!core.identical(arg16, ui._hashEnd)) {
                                result = ui._Jenkins.combine(result, arg16);
                                if (!core.identical(arg17, ui._hashEnd)) {
                                  result = ui._Jenkins.combine(result, arg17);
                                  if (!core.identical(arg18, ui._hashEnd)) {
                                    result = ui._Jenkins.combine(result, arg18);
                                    if (!core.identical(arg19, ui._hashEnd)) {
                                      result = ui._Jenkins.combine(result, arg19);
                                      if (!core.identical(arg20, ui._hashEnd)) {
                                        result = ui._Jenkins.combine(result, arg20);
                                      }
                                    }
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
    return ui._Jenkins.finish(result);
  };
  ui.hashList = function hashList($arguments) {
    let result = 0;
    if ($arguments != null) {
      for (let argument of $arguments) {
        result = ui._Jenkins.combine(result, argument);
      }
    }
    return ui._Jenkins.finish(result);
  };
  ui.webOnlyWarmupEngine = function webOnlyWarmupEngine(opts) {
    let registerPlugins = opts && 'registerPlugins' in opts ? opts.registerPlugins : null;
    let runApp = opts && 'runApp' in opts ? opts.runApp : null;
    if (!dart.test(dart.fn(() => {
      _engine.printWarning("The webOnlyWarmupEngine API is deprecated and will be removed in a future release. Please use `bootstrapEngine` from `dart:ui_web` instead.");
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[212], 32, 10, "() {\n    engine.printWarning(\n      'The webOnlyWarmupEngine API is deprecated and will be removed in a '\n      'future release. Please use `bootstrapEngine` from `dart:ui_web` instead.',\n    );\n    return true;\n  }()");
    return ui_web.bootstrapEngine({registerPlugins: registerPlugins, runApp: runApp});
  };
  ui.webOnlySetPluginHandler = function webOnlySetPluginHandler(handler) {
    if (handler == null) dart.nullFailed(I[212], 88, 54, "handler");
    if (!dart.test(dart.fn(() => {
      _engine.printWarning("The webOnlySetPluginHandler API is deprecated and will be removed in a future release. Please use `setPluginHandler` from `dart:ui_web` instead.");
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[212], 89, 10, "() {\n    engine.printWarning(\n      'The webOnlySetPluginHandler API is deprecated and will be removed in a '\n      'future release. Please use `setPluginHandler` from `dart:ui_web` instead.',\n    );\n    return true;\n  }()");
    ui_web.setPluginHandler(handler);
  };
  ui.lerpDouble = function lerpDouble(a, b, t) {
    let t$36486, t$36486$, t$36486$0, t$36486$1, t$36486$2;
    if (t == null) dart.nullFailed(I[213], 13, 43, "t");
    if (a == b || dart.test((t$36486$ = (t$36486 = a, t$36486 == null ? null : t$36486[$isNaN]), t$36486$ == null ? false : t$36486$)) && dart.test((t$36486$1 = (t$36486$0 = b, t$36486$0 == null ? null : t$36486$0[$isNaN]), t$36486$1 == null ? false : t$36486$1))) {
      t$36486$2 = a;
      return t$36486$2 == null ? null : t$36486$2[$toDouble]();
    }
    a == null ? a = 0.0 : null;
    b == null ? b = 0.0 : null;
    if (!a[$isFinite]) dart.assertFailed("Cannot interpolate between finite and non-finite values", I[213], 19, 10, "a.isFinite");
    if (!b[$isFinite]) dart.assertFailed("Cannot interpolate between finite and non-finite values", I[213], 20, 10, "b.isFinite");
    if (!t[$isFinite]) dart.assertFailed("t must be finite when interpolating between values", I[213], 21, 10, "t.isFinite");
    return dart.notNull(a) * (1.0 - dart.notNull(t)) + dart.notNull(b) * dart.notNull(t);
  };
  ui._lerpDouble = function _lerpDouble(a, b, t) {
    if (a == null) dart.nullFailed(I[213], 28, 27, "a");
    if (b == null) dart.nullFailed(I[213], 28, 37, "b");
    if (t == null) dart.nullFailed(I[213], 28, 47, "t");
    return dart.notNull(a) * (1.0 - dart.notNull(t)) + dart.notNull(b) * dart.notNull(t);
  };
  ui._lerpInt = function _lerpInt(a, b, t) {
    if (a == null) dart.nullFailed(I[213], 35, 21, "a");
    if (b == null) dart.nullFailed(I[213], 35, 28, "b");
    if (t == null) dart.nullFailed(I[213], 35, 38, "t");
    return dart.notNull(a) * (1.0 - dart.notNull(t)) + dart.notNull(b) * dart.notNull(t);
  };
  ui.clampDouble = function clampDouble(x, min, max) {
    if (x == null) dart.nullFailed(I[214], 7, 27, "x");
    if (min == null) dart.nullFailed(I[214], 7, 37, "min");
    if (max == null) dart.nullFailed(I[214], 7, 49, "max");
    if (!(dart.notNull(min) <= dart.notNull(max) && !max[$isNaN] && !min[$isNaN])) dart.assertFailed(null, I[214], 8, 10, "min <= max && !max.isNaN && !min.isNaN");
    if (dart.notNull(x) < dart.notNull(min)) {
      return min;
    }
    if (dart.notNull(x) > dart.notNull(max)) {
      return max;
    }
    if (x[$isNaN]) {
      return max;
    }
    return x;
  };
  ui._validateColorStops = function _validateColorStops(colors, colorStops) {
    if (colors == null) dart.nullFailed(I[203], 8, 38, "colors");
    if (colorStops == null) {
      if (colors[$length] !== 2) {
        dart.throw(new core.ArgumentError.new("\"colors\" must have length 2 if \"colorStops\" is omitted."));
      }
    } else {
      if (colors[$length] != colorStops[$length]) {
        dart.throw(new core.ArgumentError.new("\"colors\" and \"colorStops\" arguments must have equal length."));
      }
    }
  };
  ui._scaleAlpha = function _scaleAlpha(a, factor) {
    if (a == null) dart.nullFailed(I[203], 20, 25, "a");
    if (factor == null) dart.nullFailed(I[203], 20, 35, "factor");
    return a.withAlpha(_engine.clampInt((dart.notNull(a.alpha) * dart.notNull(factor))[$round](), 0, 255));
  };
  ui.instantiateImageCodec = function instantiateImageCodec(list, opts) {
    if (list == null) dart.nullFailed(I[203], 495, 13, "list");
    let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
    let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
    let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
    if (allowUpscaling == null) dart.nullFailed(I[203], 498, 8, "allowUpscaling");
    return _engine.renderer.instantiateImageCodec(list, {targetWidth: targetWidth, targetHeight: targetHeight, allowUpscaling: allowUpscaling});
  };
  ui.instantiateImageCodecFromBuffer = function instantiateImageCodecFromBuffer(buffer, opts) {
    if (buffer == null) dart.nullFailed(I[203], 506, 19, "buffer");
    let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
    let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
    let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
    if (allowUpscaling == null) dart.nullFailed(I[203], 509, 8, "allowUpscaling");
    return _engine.renderer.instantiateImageCodec(dart.nullCheck(buffer[_list$17]), {targetWidth: targetWidth, targetHeight: targetHeight, allowUpscaling: allowUpscaling});
  };
  ui.instantiateImageCodecWithSize = function instantiateImageCodecWithSize(buffer, opts) {
    if (buffer == null) dart.nullFailed(I[203], 517, 19, "buffer");
    let getTargetSize = opts && 'getTargetSize' in opts ? opts.getTargetSize : null;
    return async.async(T$9.Codec(), function* instantiateImageCodecWithSize() {
      if (getTargetSize == null) {
        return _engine.renderer.instantiateImageCodec(dart.nullCheck(buffer[_list$17]));
      } else {
        let codec = (yield _engine.renderer.instantiateImageCodec(dart.nullCheck(buffer[_list$17])));
        try {
          let info = (yield codec.getNextFrame());
          try {
            let width = info.image.width;
            let height = info.image.height;
            let targetSize = getTargetSize(width, height);
            return _engine.renderer.instantiateImageCodec(dart.nullCheck(buffer[_list$17]), {targetWidth: targetSize.width, targetHeight: targetSize.height, allowUpscaling: false});
          } finally {
            info.image.dispose();
          }
        } finally {
          codec.dispose();
        }
      }
    });
  };
  ui.webOnlyInstantiateImageCodecFromUrl = function webOnlyInstantiateImageCodecFromUrl(uri, opts) {
    if (uri == null) dart.nullFailed(I[203], 555, 7, "uri");
    let chunkCallback = opts && 'chunkCallback' in opts ? opts.chunkCallback : null;
    if (!dart.test(dart.fn(() => {
      _engine.printWarning("The webOnlyInstantiateImageCodecFromUrl API is deprecated and will be removed in a future release. Please use `createImageCodecFromUrl` from `dart:ui_web` instead.");
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[203], 558, 10, "() {\n    engine.printWarning(\n      'The webOnlyInstantiateImageCodecFromUrl API is deprecated and will be '\n      'removed in a future release. Please use `createImageCodecFromUrl` from '\n      '`dart:ui_web` instead.',\n    );\n    return true;\n  }()");
    return ui_web.createImageCodecFromUrl(uri, {chunkCallback: chunkCallback});
  };
  ui.decodeImageFromList = function decodeImageFromList(list, callback) {
    if (list == null) dart.nullFailed(I[203], 569, 36, "list");
    if (callback == null) dart.nullFailed(I[203], 569, 63, "callback");
    ui._decodeImageFromListAsync(list, callback);
  };
  ui._decodeImageFromListAsync = function _decodeImageFromListAsync(list, callback) {
    if (list == null) dart.nullFailed(I[203], 573, 50, "list");
    if (callback == null) dart.nullFailed(I[203], 573, 77, "callback");
    return async.async(T$.void(), function* _decodeImageFromListAsync() {
      let codec = (yield ui.instantiateImageCodec(list));
      let frameInfo = (yield codec.getNextFrame());
      callback(frameInfo.image);
    });
  };
  ui.createBmp = function createBmp(pixels, width, height, rowBytes, format) {
    if (pixels == null) dart.nullFailed(I[203], 585, 13, "pixels");
    if (width == null) dart.nullFailed(I[203], 586, 7, "width");
    if (height == null) dart.nullFailed(I[203], 587, 7, "height");
    if (rowBytes == null) dart.nullFailed(I[203], 588, 7, "rowBytes");
    if (format == null) dart.nullFailed(I[203], 589, 15, "format");
    let swapRedBlue = null;
    let t$36$35swapRedBlue$35isSet = false;
    function t$36$35swapRedBlue$35get() {
      return t$36$35swapRedBlue$35isSet ? swapRedBlue : dart.throw(new _internal.LateError.localNI("swapRedBlue"));
    }
    function t$36$35swapRedBlue$35set(swapRedBlue$35param) {
      if (swapRedBlue$35param == null) dart.nullFailed(I[203], 591, 13, "swapRedBlue#param");
      t$36$35swapRedBlue$35isSet = true;
      return swapRedBlue = swapRedBlue$35param;
    }
    switch (format) {
      case C[607] || CT.C607:
        {
          t$36$35swapRedBlue$35set(true);
          break;
        }
      case C[606] || CT.C606:
        {
          t$36$35swapRedBlue$35set(false);
          break;
        }
      case C[608] || CT.C608:
        {
          dart.throw(new core.UnimplementedError.new("RGB conversion from rgbaFloat32 data is not implemented"));
        }
      default:
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
    }
    let bufferSize = 122 + dart.notNull(width) * dart.notNull(height) * 4;
    let bmpData = _native_typed_data.NativeByteData.new(bufferSize);
    bmpData[$setUint16](0, 16973);
    bmpData[$setUint32](2, bufferSize, typed_data.Endian.little);
    bmpData[$setUint32](10, 122, typed_data.Endian.little);
    bmpData[$setUint32](14, 108, typed_data.Endian.little);
    bmpData[$setUint32](18, width, typed_data.Endian.little);
    bmpData[$setUint32](22, height, typed_data.Endian.little);
    bmpData[$setUint16](26, 1, typed_data.Endian.little);
    bmpData[$setUint16](28, 32, typed_data.Endian.little);
    bmpData[$setUint32](30, 3, typed_data.Endian.little);
    bmpData[$setUint32](34, dart.notNull(width) * dart.notNull(height), typed_data.Endian.little);
    bmpData[$setUint32](38, width, typed_data.Endian.little);
    bmpData[$setUint32](42, height, typed_data.Endian.little);
    bmpData[$setUint32](46, 0, typed_data.Endian.little);
    bmpData[$setUint32](50, 0, typed_data.Endian.little);
    bmpData[$setUint32](54, dart.test(t$36$35swapRedBlue$35get()) ? 16711680 : 255, typed_data.Endian.little);
    bmpData[$setUint32](58, 65280, typed_data.Endian.little);
    bmpData[$setUint32](62, dart.test(t$36$35swapRedBlue$35get()) ? 255 : 16711680, typed_data.Endian.little);
    bmpData[$setUint32](66, 4278190080, typed_data.Endian.little);
    let destinationByte = 122;
    let combinedPixels = typed_data.Uint32List.sublistView(pixels);
    for (let rowCount = dart.notNull(height) - 1; rowCount >= 0; rowCount = rowCount - 1) {
      let sourcePixel = rowCount * dart.notNull(rowBytes);
      for (let colCount = 0; colCount < dart.notNull(width); colCount = colCount + 1) {
        bmpData[$setUint32](destinationByte, combinedPixels[$_get](sourcePixel), typed_data.Endian.little);
        destinationByte = destinationByte + 4;
        sourcePixel = sourcePixel + 1;
      }
    }
    return ui.instantiateImageCodec(bmpData[$buffer][$asUint8List]());
  };
  ui.decodeImageFromPixels = function decodeImageFromPixels(pixels, width, height, format, callback, opts) {
    if (pixels == null) dart.nullFailed(I[203], 664, 13, "pixels");
    if (width == null) dart.nullFailed(I[203], 665, 7, "width");
    if (height == null) dart.nullFailed(I[203], 666, 7, "height");
    if (format == null) dart.nullFailed(I[203], 667, 15, "format");
    if (callback == null) dart.nullFailed(I[203], 668, 24, "callback");
    let rowBytes = opts && 'rowBytes' in opts ? opts.rowBytes : null;
    let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
    let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
    let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
    if (allowUpscaling == null) dart.nullFailed(I[203], 672, 8, "allowUpscaling");
    return _engine.renderer.decodeImageFromPixels(pixels, width, height, format, callback, {rowBytes: rowBytes, targetWidth: targetWidth, targetHeight: targetHeight, allowUpscaling: allowUpscaling});
  };
  ui.runOnPlatformThread = function runOnPlatformThread(R, computation) {
    if (computation == null) dart.nullFailed(I[215], 30, 57, "computation");
    return async.Future$(R).new(computation);
  };
  ui.loadFontFromList = function loadFontFromList(list, opts) {
    if (list == null) dart.nullFailed(I[209], 757, 41, "list");
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    return async.async(T$.void(), function* loadFontFromList() {
      yield _engine.renderer.fontCollection.loadFontFromList(list, {fontFamily: fontFamily});
      _engine.sendFontChangeMessage();
    });
  };
  dart.copyProperties(ui, {
    get debugEmulateFlutterTesterEnvironment() {
      if (!dart.test(dart.fn(() => {
        _engine.printWarning("The debugEmulateFlutterTesterEnvironment getter is deprecated and will be removed in a future release. Please use `debugEmulateFlutterTesterEnvironment` from `dart:ui_web` instead.");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[212], 48, 10, "() {\n    engine.printWarning(\n      'The debugEmulateFlutterTesterEnvironment getter is deprecated and will '\n      'be removed in a future release. Please use '\n      '`debugEmulateFlutterTesterEnvironment` from `dart:ui_web` instead.',\n    );\n    return true;\n  }()");
      return ui_web.debugEmulateFlutterTesterEnvironment;
    },
    set debugEmulateFlutterTesterEnvironment(value) {
      if (value == null) dart.nullFailed(I[212], 61, 47, "value");
      if (!dart.test(dart.fn(() => {
        _engine.printWarning("The debugEmulateFlutterTesterEnvironment setter is deprecated and will be removed in a future release. Please use `debugEmulateFlutterTesterEnvironment` from `dart:ui_web` instead.");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[212], 62, 10, "() {\n    engine.printWarning(\n      'The debugEmulateFlutterTesterEnvironment setter is deprecated and will '\n      'be removed in a future release. Please use '\n      '`debugEmulateFlutterTesterEnvironment` from `dart:ui_web` instead.',\n    );\n    return true;\n  }()");
      ui_web.debugEmulateFlutterTesterEnvironment = value;
    },
    get webOnlyAssetManager() {
      if (!dart.test(dart.fn(() => {
        _engine.printWarning("The webOnlyAssetManager getter is deprecated and will be removed in a future release. Please use `assetManager` from `dart:ui_web` instead.");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[212], 76, 10, "() {\n    engine.printWarning(\n      'The webOnlyAssetManager getter is deprecated and will be removed in a '\n      'future release. Please use `assetManager` from `dart:ui_web` instead.',\n    );\n    return true;\n  }()");
      return ui_web.assetManager;
    },
    get platformViewRegistry() {
      if (!dart.test(dart.fn(() => {
        _engine.printWarning("The platformViewRegistry getter is deprecated and will be removed in a future release. Please import it from `dart:ui_web` instead.");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[212], 102, 10, "() {\n    engine.printWarning(\n      'The platformViewRegistry getter is deprecated and will be removed in a '\n      'future release. Please import it from `dart:ui_web` instead.',\n    );\n    return true;\n  }()");
      return ui_web.platformViewRegistry;
    },
    get window() {
      return _engine.window;
    }
  });
  dart.defineLazy(ui, {
    /*ui.keepToString*/get keepToString() {
      return C[808] || CT.C808;
    },
    /*ui.channelBuffers*/get channelBuffers() {
      return new ui.ChannelBuffers.new();
    },
    /*ui._hashEnd*/get _hashEnd() {
      return C[807] || CT.C807;
    },
    /*ui.isRunningOnPlatformThread*/get isRunningOnPlatformThread() {
      return true;
    },
    set isRunningOnPlatformThread(value) {
      if (value == null) dart.nullFailed(I[215], 34, 6, "isRunningOnPlatformThread");
    },
    /*ui.kTextHeightNone*/get kTextHeightNone() {
      return 0;
    }
  }, false);
  var assetsDir$ = dart.privateName(ui_web, "AssetManager.assetsDir");
  var _assetBase = dart.privateName(ui_web, "_assetBase");
  var _deprecatedAssetBase = dart.privateName(ui_web, "_deprecatedAssetBase");
  var _baseUrl = dart.privateName(ui_web, "_baseUrl");
  ui_web.AssetManager = class AssetManager extends core.Object {
    get assetsDir() {
      return this[assetsDir$];
    }
    set assetsDir(value) {
      super.assetsDir = value;
    }
    static ['_#new#tearOff'](opts) {
      let assetsDir = opts && 'assetsDir' in opts ? opts.assetsDir : "assets";
      if (assetsDir == null) dart.nullFailed(I[216], 20, 10, "assetsDir");
      let assetBase = opts && 'assetBase' in opts ? opts.assetBase : null;
      return new ui_web.AssetManager.new({assetsDir: assetsDir, assetBase: assetBase});
    }
    get [_baseUrl]() {
      let t$36490, t$36489;
      t$36489 = this[_assetBase];
      return t$36489 == null ? this[_assetBase] = (t$36490 = this[_deprecatedAssetBase], t$36490 == null ? "" : t$36490) : t$36489;
    }
    get [_deprecatedAssetBase]() {
      let t$36489;
      let meta = T$9.DomHTMLMetaElementN()[_as](_engine['DomDocumentExtension|querySelector'](js_util.getProperty(T$9.DomDocument(), dart.jsInteropNullCheck(dart.global.window), "document"), "meta[name=assetBase]"));
      let fallbackBaseUrl = (t$36489 = meta, t$36489 == null ? null : _engine['DomHTMLMetaElementExtension|get#content'](t$36489));
      if (fallbackBaseUrl != null) {
        _engine['DomConsoleExtension|warn'](js_util.getProperty(T$9.DomConsole(), dart.jsInteropNullCheck(dart.global.window), "console"), "The `assetBase` meta tag is now deprecated.\nUse engineInitializer.initializeEngine(config) instead.\nSee: https://docs.flutter.dev/development/platform-integration/web/initialization");
      }
      return fallbackBaseUrl;
    }
    getAssetUrl(asset) {
      if (asset == null) dart.nullFailed(I[216], 74, 29, "asset");
      if (dart.test(core.Uri.parse(asset).hasScheme)) {
        return core.Uri.encodeFull(asset);
      }
      return core.Uri.encodeFull(dart.str(this[_baseUrl]) + dart.str(this.assetsDir) + "/" + dart.str(asset));
    }
    loadAsset(asset) {
      if (asset == null) dart.nullFailed(I[216], 82, 35, "asset");
      return _engine.httpFetch(this.getAssetUrl(asset));
    }
    load(asset) {
      if (asset == null) dart.nullFailed(I[216], 87, 32, "asset");
      return async.async(T$0.ByteData(), (function* load() {
        let url = this.getAssetUrl(asset);
        let response = (yield _engine.httpFetch(url));
        if (response.status === 404 && asset === "AssetManifest.json") {
          _engine.printWarning("Asset manifest does not exist at `" + dart.str(url) + "` - ignoring.");
          return typed_data.ByteData.sublistView(convert.utf8.encode("{}"));
        }
        return (yield response.payload.asByteBuffer())[$asByteData]();
      }).bind(this));
    }
  };
  (ui_web.AssetManager.new = function(opts) {
    let assetsDir = opts && 'assetsDir' in opts ? opts.assetsDir : "assets";
    if (assetsDir == null) dart.nullFailed(I[216], 20, 10, "assetsDir");
    let assetBase = opts && 'assetBase' in opts ? opts.assetBase : null;
    this[assetsDir$] = assetsDir;
    if (!(assetBase == null || assetBase[$endsWith]("/"))) dart.assertFailed("`assetBase` must end with a `/` character.", I[216], 23, 11, "assetBase == null || assetBase.endsWith('/')");
    this[_assetBase] = assetBase;
    ;
  }).prototype = ui_web.AssetManager.prototype;
  dart.addRtiResources(ui_web.AssetManager, ["ui_web|AssetManager"]);
  dart.setMethodSignature(ui_web.AssetManager, () => dart.global.Object.setPrototypeOf({
    getAssetUrl: T$.StringToString(),
    loadAsset: T$9.StringToFutureOfObject(),
    load: T$9.StringToFutureOfByteData()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui_web.AssetManager))));
  dart.setGetterSignature(ui_web.AssetManager, () => dart.global.Object.setPrototypeOf({
    [_baseUrl]: T$.String(),
    [_deprecatedAssetBase]: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui_web.AssetManager))));
  dart.setLibraryUri(ui_web.AssetManager, I[217]);
  dart.setFieldSignature(ui_web.AssetManager, () => dart.global.Object.setPrototypeOf({
    assetsDir: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_assetBase]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui_web.AssetManager))));
  dart.setStaticFieldSignature(ui_web.AssetManager, () => ['_defaultAssetsDir']);
  dart.defineLazy(ui_web.AssetManager, {
    /*ui_web.AssetManager._defaultAssetsDir*/get _defaultAssetsDir() {
      return "assets";
    }
  }, false);
  ui_web.BrowserEngine = class BrowserEngine extends core._Enum {
    [_enumToString]() {
      return "BrowserEngine." + dart.str(this[_name$]);
    }
  };
  (ui_web.BrowserEngine.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[218], 10, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[218], 10, 6, "#name");
    dart.global.Object.getPrototypeOf(ui_web.BrowserEngine).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui_web.BrowserEngine.prototype;
  dart.addRtiResources(ui_web.BrowserEngine, ["ui_web|BrowserEngine"]);
  dart.setMethodSignature(ui_web.BrowserEngine, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui_web.BrowserEngine))));
  dart.setLibraryUri(ui_web.BrowserEngine, I[217]);
  dart.setStaticFieldSignature(ui_web.BrowserEngine, () => ['values', 'blink', 'webkit', 'firefox']);
  dart.defineLazy(ui_web.BrowserEngine, {
    /*ui_web.BrowserEngine.values*/get values() {
      return C[809] || CT.C809;
    },
    /*ui_web.BrowserEngine.blink*/get blink() {
      return C[810] || CT.C810;
    },
    /*ui_web.BrowserEngine.webkit*/get webkit() {
      return C[811] || CT.C811;
    },
    /*ui_web.BrowserEngine.firefox*/get firefox() {
      return C[812] || CT.C812;
    }
  }, false);
  ui_web.OperatingSystem = class OperatingSystem extends core._Enum {
    [_enumToString]() {
      return "OperatingSystem." + dart.str(this[_name$]);
    }
  };
  (ui_web.OperatingSystem.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[218], 27, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[218], 27, 6, "#name");
    dart.global.Object.getPrototypeOf(ui_web.OperatingSystem).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = ui_web.OperatingSystem.prototype;
  dart.addRtiResources(ui_web.OperatingSystem, ["ui_web|OperatingSystem"]);
  dart.setMethodSignature(ui_web.OperatingSystem, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(ui_web.OperatingSystem))));
  dart.setLibraryUri(ui_web.OperatingSystem, I[217]);
  dart.setStaticFieldSignature(ui_web.OperatingSystem, () => ['values', 'iOs', 'android', 'linux', 'windows', 'macOs', 'unknown']);
  dart.defineLazy(ui_web.OperatingSystem, {
    /*ui_web.OperatingSystem.values*/get values() {
      return C[813] || CT.C813;
    },
    /*ui_web.OperatingSystem.iOs*/get iOs() {
      return C[814] || CT.C814;
    },
    /*ui_web.OperatingSystem.android*/get android() {
      return C[815] || CT.C815;
    },
    /*ui_web.OperatingSystem.linux*/get linux() {
      return C[816] || CT.C816;
    },
    /*ui_web.OperatingSystem.windows*/get windows() {
      return C[817] || CT.C817;
    },
    /*ui_web.OperatingSystem.macOs*/get macOs() {
      return C[818] || CT.C818;
    },
    /*ui_web.OperatingSystem.unknown*/get unknown() {
      return C[819] || CT.C819;
    }
  }, false);
  var debugUserAgentOverride = dart.privateName(ui_web, "BrowserDetection.debugUserAgentOverride");
  var debugBrowserEngineOverride = dart.privateName(ui_web, "BrowserDetection.debugBrowserEngineOverride");
  var debugOperatingSystemOverride = dart.privateName(ui_web, "BrowserDetection.debugOperatingSystemOverride");
  var __BrowserDetection__userAgent = dart.privateName(ui_web, "_#BrowserDetection#_userAgent");
  var __BrowserDetection__userAgent_isSet = dart.privateName(ui_web, "_#BrowserDetection#_userAgent#isSet");
  var __BrowserDetection__browserEngine = dart.privateName(ui_web, "_#BrowserDetection#_browserEngine");
  var __BrowserDetection__browserEngine_isSet = dart.privateName(ui_web, "_#BrowserDetection#_browserEngine#isSet");
  var __BrowserDetection__operatingSystem = dart.privateName(ui_web, "_#BrowserDetection#_operatingSystem");
  var __BrowserDetection__operatingSystem_isSet = dart.privateName(ui_web, "_#BrowserDetection#_operatingSystem#isSet");
  var _userAgent = dart.privateName(ui_web, "_userAgent");
  var _detectUserAgent = dart.privateName(ui_web, "_detectUserAgent");
  var _browserEngine = dart.privateName(ui_web, "_browserEngine");
  var _detectBrowserEngine = dart.privateName(ui_web, "_detectBrowserEngine");
  var _operatingSystem = dart.privateName(ui_web, "_operatingSystem");
  ui_web.BrowserDetection = class BrowserDetection extends core.Object {
    get debugUserAgentOverride() {
      return this[debugUserAgentOverride];
    }
    set debugUserAgentOverride(value) {
      this[debugUserAgentOverride] = value;
    }
    get debugBrowserEngineOverride() {
      return this[debugBrowserEngineOverride];
    }
    set debugBrowserEngineOverride(value) {
      this[debugBrowserEngineOverride] = value;
    }
    get debugOperatingSystemOverride() {
      return this[debugOperatingSystemOverride];
    }
    set debugOperatingSystemOverride(value) {
      this[debugOperatingSystemOverride] = value;
    }
    static ['_#_#tearOff']() {
      return new ui_web.BrowserDetection.__();
    }
    get userAgent() {
      let t$36493;
      t$36493 = this.debugUserAgentOverride;
      return t$36493 == null ? this[_userAgent] : t$36493;
    }
    get [_userAgent]() {
      let t$36494;
      if (!dart.test(this[__BrowserDetection__userAgent_isSet])) {
        let t$36493 = this[_detectUserAgent]();
        if (dart.test(this[__BrowserDetection__userAgent_isSet])) dart.throw(new _internal.LateError.fieldADI("_userAgent"));
        this[__BrowserDetection__userAgent] = t$36493;
        this[__BrowserDetection__userAgent_isSet] = true;
      }
      t$36494 = this[__BrowserDetection__userAgent];
      return t$36494;
    }
    [_detectUserAgent]() {
      return _engine['DomNavigatorExtension|get#userAgent'](js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator"));
    }
    get browserEngine() {
      let t$36494;
      t$36494 = this.debugBrowserEngineOverride;
      return t$36494 == null ? this[_browserEngine] : t$36494;
    }
    get [_browserEngine]() {
      let t$36495;
      if (!dart.test(this[__BrowserDetection__browserEngine_isSet])) {
        let t$36494 = this[_detectBrowserEngine]();
        if (dart.test(this[__BrowserDetection__browserEngine_isSet])) dart.throw(new _internal.LateError.fieldADI("_browserEngine"));
        this[__BrowserDetection__browserEngine] = t$36494;
        this[__BrowserDetection__browserEngine_isSet] = true;
      }
      t$36495 = this[__BrowserDetection__browserEngine];
      return t$36495;
    }
    [_detectBrowserEngine]() {
      let vendor = _engine['DomNavigatorExtension|get#vendor'](js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator"));
      let agent = this.userAgent[$toLowerCase]();
      return this.detectBrowserEngineByVendorAgent(vendor, agent);
    }
    detectBrowserEngineByVendorAgent(vendor, agent) {
      if (vendor == null) dart.nullFailed(I[218], 100, 57, "vendor");
      if (agent == null) dart.nullFailed(I[218], 100, 72, "agent");
      if (vendor === "Google Inc.") {
        return ui_web.BrowserEngine.blink;
      } else if (vendor === "Apple Computer, Inc.") {
        return ui_web.BrowserEngine.webkit;
      } else if (agent[$contains]("Edg/")) {
        return ui_web.BrowserEngine.blink;
      } else if (vendor === "" && agent[$contains]("firefox")) {
        return ui_web.BrowserEngine.firefox;
      }
      core.print("WARNING: failed to detect current browser engine. Assuming this is a Chromium-compatible browser.");
      return ui_web.BrowserEngine.blink;
    }
    get operatingSystem() {
      let t$36495;
      t$36495 = this.debugOperatingSystemOverride;
      return t$36495 == null ? this[_operatingSystem] : t$36495;
    }
    get [_operatingSystem]() {
      let t$36496;
      if (!dart.test(this[__BrowserDetection__operatingSystem_isSet])) {
        let t$36495 = this.detectOperatingSystem();
        if (dart.test(this[__BrowserDetection__operatingSystem_isSet])) dart.throw(new _internal.LateError.fieldADI("_operatingSystem"));
        this[__BrowserDetection__operatingSystem] = t$36495;
        this[__BrowserDetection__operatingSystem_isSet] = true;
      }
      t$36496 = this[__BrowserDetection__operatingSystem];
      return t$36496;
    }
    detectOperatingSystem(opts) {
      let t$36496, t$36497, t$36496$, t$36496$0;
      let overridePlatform = opts && 'overridePlatform' in opts ? opts.overridePlatform : null;
      let overrideMaxTouchPoints = opts && 'overrideMaxTouchPoints' in opts ? opts.overrideMaxTouchPoints : null;
      let platform = (t$36496 = overridePlatform, t$36496 == null ? dart.nullCheck(_engine['DomNavigatorExtension|get#platform'](js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator"))) : t$36496);
      if (platform[$startsWith]("Mac")) {
        let maxTouchPoints = (t$36496$0 = (t$36496$ = overrideMaxTouchPoints, t$36496$ == null ? (t$36497 = _engine['DomNavigatorExtension|get#maxTouchPoints'](js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator")), t$36497 == null ? null : t$36497[$toInt]()) : t$36496$), t$36496$0 == null ? 0 : t$36496$0);
        if (dart.notNull(maxTouchPoints) > 2) {
          return ui_web.OperatingSystem.iOs;
        }
        return ui_web.OperatingSystem.macOs;
      } else if (platform[$toLowerCase]()[$contains]("iphone") || platform[$toLowerCase]()[$contains]("ipad") || platform[$toLowerCase]()[$contains]("ipod")) {
        return ui_web.OperatingSystem.iOs;
      } else if (this.userAgent[$contains]("Android")) {
        return ui_web.OperatingSystem.android;
      } else if (platform[$startsWith]("Linux")) {
        return ui_web.OperatingSystem.linux;
      } else if (platform[$startsWith]("Win")) {
        return ui_web.OperatingSystem.windows;
      } else {
        return ui_web.OperatingSystem.unknown;
      }
    }
    get isDesktop() {
      return ui_web._desktopOperatingSystems.contains(this.operatingSystem);
    }
    get isMobile() {
      return !dart.test(this.isDesktop);
    }
    get isChromium() {
      return this.browserEngine == ui_web.BrowserEngine.blink;
    }
    get isSafari() {
      return this.browserEngine == ui_web.BrowserEngine.webkit;
    }
    get isFirefox() {
      return this.browserEngine == ui_web.BrowserEngine.firefox;
    }
    get isEdge() {
      return this.userAgent[$contains]("Edg/");
    }
    get isWasm() {
      return false;
    }
  };
  (ui_web.BrowserDetection.__ = function() {
    this[debugUserAgentOverride] = null;
    this[__BrowserDetection__userAgent] = null;
    this[__BrowserDetection__userAgent_isSet] = false;
    this[debugBrowserEngineOverride] = null;
    this[__BrowserDetection__browserEngine] = null;
    this[__BrowserDetection__browserEngine_isSet] = false;
    this[debugOperatingSystemOverride] = null;
    this[__BrowserDetection__operatingSystem] = null;
    this[__BrowserDetection__operatingSystem_isSet] = false;
    ;
  }).prototype = ui_web.BrowserDetection.prototype;
  dart.addRtiResources(ui_web.BrowserDetection, ["ui_web|BrowserDetection"]);
  dart.setMethodSignature(ui_web.BrowserDetection, () => dart.global.Object.setPrototypeOf({
    [_detectUserAgent]: T$.VoidToString(),
    [_detectBrowserEngine]: T$9.VoidToBrowserEngine(),
    detectBrowserEngineByVendorAgent: T$9.StringAndStringToBrowserEngine(),
    detectOperatingSystem: T$9.__ToOperatingSystem()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui_web.BrowserDetection))));
  dart.setGetterSignature(ui_web.BrowserDetection, () => dart.global.Object.setPrototypeOf({
    userAgent: T$.String(),
    [_userAgent]: T$.String(),
    browserEngine: T$9.BrowserEngine(),
    [_browserEngine]: T$9.BrowserEngine(),
    operatingSystem: T$9.OperatingSystem(),
    [_operatingSystem]: T$9.OperatingSystem(),
    isDesktop: T$.bool(),
    isMobile: T$.bool(),
    isChromium: T$.bool(),
    isSafari: T$.bool(),
    isFirefox: T$.bool(),
    isEdge: T$.bool(),
    isWasm: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui_web.BrowserDetection))));
  dart.setLibraryUri(ui_web.BrowserDetection, I[217]);
  dart.setFieldSignature(ui_web.BrowserDetection, () => dart.global.Object.setPrototypeOf({
    debugUserAgentOverride: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__BrowserDetection__userAgent]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__BrowserDetection__userAgent_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    debugBrowserEngineOverride: {type: T$9.BrowserEngineN(), isConst: false, isFinal: false, libraryUri: I[217]},
    [__BrowserDetection__browserEngine]: {type: T$9.BrowserEngineN(), isConst: false, isFinal: false, libraryUri: I[217]},
    [__BrowserDetection__browserEngine_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    debugOperatingSystemOverride: {type: T$9.OperatingSystemN(), isConst: false, isFinal: false, libraryUri: I[217]},
    [__BrowserDetection__operatingSystem]: {type: T$9.OperatingSystemN(), isConst: false, isFinal: false, libraryUri: I[217]},
    [__BrowserDetection__operatingSystem_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(ui_web.BrowserDetection))));
  dart.setStaticFieldSignature(ui_web.BrowserDetection, () => ['instance']);
  dart.defineLazy(ui_web.BrowserDetection, {
    /*ui_web.BrowserDetection.instance*/get instance() {
      return new ui_web.BrowserDetection.__();
    }
  }, false);
  var _viewManager = dart.privateName(ui_web, "_viewManager");
  ui_web.FlutterViewManagerProxy = class FlutterViewManagerProxy extends core.Object {
    static ['_#new#tearOff'](opts) {
      let viewManager = opts && 'viewManager' in opts ? opts.viewManager : null;
      if (viewManager == null) dart.nullFailed(I[219], 14, 35, "viewManager");
      return new ui_web.FlutterViewManagerProxy.new({viewManager: viewManager});
    }
    getHostElement(viewId) {
      let t$36496;
      if (viewId == null) dart.nullFailed(I[219], 24, 29, "viewId");
      t$36496 = this[_viewManager].getOptions(viewId);
      return t$36496 == null ? null : _engine['JsFlutterViewOptionsExtension|get#hostElement'](t$36496);
    }
    getInitialData(viewId) {
      let t$36496;
      if (viewId == null) dart.nullFailed(I[219], 35, 29, "viewId");
      t$36496 = this[_viewManager].getOptions(viewId);
      return t$36496 == null ? null : js_util.getProperty(T$.ObjectN(), t$36496, "initialData");
    }
  };
  (ui_web.FlutterViewManagerProxy.new = function(opts) {
    let viewManager = opts && 'viewManager' in opts ? opts.viewManager : null;
    if (viewManager == null) dart.nullFailed(I[219], 14, 35, "viewManager");
    this[_viewManager] = viewManager;
    ;
  }).prototype = ui_web.FlutterViewManagerProxy.prototype;
  dart.addRtiResources(ui_web.FlutterViewManagerProxy, ["ui_web|FlutterViewManagerProxy"]);
  dart.setMethodSignature(ui_web.FlutterViewManagerProxy, () => dart.global.Object.setPrototypeOf({
    getHostElement: T$.intToObjectN(),
    getInitialData: T$.intToObjectN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui_web.FlutterViewManagerProxy))));
  dart.setLibraryUri(ui_web.FlutterViewManagerProxy, I[217]);
  dart.setFieldSignature(ui_web.FlutterViewManagerProxy, () => dart.global.Object.setPrototypeOf({[_viewManager]: {type: T$9.FlutterViewManager(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui_web.FlutterViewManagerProxy))));
  ui_web.PlatformLocation = class PlatformLocation extends core.Object {};
  (ui_web.PlatformLocation.new = function() {
    ;
  }).prototype = ui_web.PlatformLocation.prototype;
  dart.addRtiResources(ui_web.PlatformLocation, ["ui_web|PlatformLocation"]);
  dart.setLibraryUri(ui_web.PlatformLocation, I[217]);
  var _location = dart.privateName(ui_web, "_location");
  var _history = dart.privateName(ui_web, "_history");
  ui_web.BrowserPlatformLocation = class BrowserPlatformLocation extends core.Object {
    static ['_#new#tearOff']() {
      return new ui_web.BrowserPlatformLocation.new();
    }
    get [_location]() {
      return js_util.getProperty(T$9.DomLocation(), dart.jsInteropNullCheck(dart.global.window), "location");
    }
    get [_history]() {
      return js_util.getProperty(T$9.DomHistory(), dart.jsInteropNullCheck(dart.global.window), "history");
    }
    getOrCreateDomEventListener(fn) {
      if (fn == null) dart.nullFailed(I[221], 90, 62, "fn");
      return ui_web._popStateListenersCache[$putIfAbsent](fn, dart.fn(() => _engine.createDomEventListener(fn), T$9.VoidToDomEventListener()));
    }
    addPopStateListener(fn) {
      if (fn == null) dart.nullFailed(I[221], 95, 42, "fn");
      _engine['DomEventTargetExtension|addEventListener'](dart.jsInteropNullCheck(dart.global.window), "popstate", this.getOrCreateDomEventListener(fn));
    }
    removePopStateListener(fn) {
      if (fn == null) dart.nullFailed(I[221], 100, 45, "fn");
      if (!dart.test(ui_web._popStateListenersCache[$containsKey](fn))) dart.assertFailed("Removing a listener that was never added or was removed already.", I[221], 102, 7, "_popStateListenersCache.containsKey(fn)");
      _engine['DomEventTargetExtension|removeEventListener'](dart.jsInteropNullCheck(dart.global.window), "popstate", this.getOrCreateDomEventListener(fn));
      ui_web._popStateListenersCache[$remove](fn);
    }
    get pathname() {
      return dart.nullCheck(_engine['DomLocationExtension|get#pathname'](this[_location]));
    }
    get search() {
      return dart.nullCheck(_engine['DomLocationExtension|get#search'](this[_location]));
    }
    get hash() {
      return _engine['DomLocationExtension|get#locationHash'](this[_location]);
    }
    get state() {
      return _engine['DomHistoryExtension|get#state'](this[_history]);
    }
    pushState(state, title, url) {
      if (title == null) dart.nullFailed(I[221], 122, 40, "title");
      if (url == null) dart.nullFailed(I[221], 122, 54, "url");
      _engine['DomHistoryExtension|pushState'](this[_history], state, title, url);
    }
    replaceState(state, title, url) {
      if (title == null) dart.nullFailed(I[221], 127, 43, "title");
      if (url == null) dart.nullFailed(I[221], 127, 57, "url");
      _engine['DomHistoryExtension|replaceState'](this[_history], state, title, url);
    }
    go(count) {
      if (count == null) dart.nullFailed(I[221], 132, 15, "count");
      _engine['DomHistoryExtension|go'](this[_history], count);
    }
    getBaseHref() {
      return _engine['DomNodeExtension|get#baseUri'](dart.jsInteropNullCheck(dart.global.document));
    }
  };
  (ui_web.BrowserPlatformLocation.new = function() {
    ;
  }).prototype = ui_web.BrowserPlatformLocation.prototype;
  dart.addRtiResources(ui_web.BrowserPlatformLocation, ["ui_web|BrowserPlatformLocation", "ui_web|PlatformLocation"]);
  dart.setMethodSignature(ui_web.BrowserPlatformLocation, () => dart.global.Object.setPrototypeOf({
    getOrCreateDomEventListener: T$9.FnToDomEventListener(),
    addPopStateListener: T$9.FnTovoid$36(),
    removePopStateListener: T$9.FnTovoid$36(),
    pushState: T$9.ObjectNAndStringAndStringTovoid(),
    replaceState: T$9.ObjectNAndStringAndStringTovoid(),
    go: T$.intTovoid(),
    getBaseHref: T$8.VoidToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui_web.BrowserPlatformLocation))));
  dart.setGetterSignature(ui_web.BrowserPlatformLocation, () => dart.global.Object.setPrototypeOf({
    [_location]: T$9.DomLocation(),
    [_history]: T$9.DomHistory(),
    pathname: T$.String(),
    search: T$.String(),
    hash: T$.String(),
    state: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(ui_web.BrowserPlatformLocation))));
  dart.setLibraryUri(ui_web.BrowserPlatformLocation, I[217]);
  ui_web.UrlStrategy = class UrlStrategy extends core.Object {};
  (ui_web.UrlStrategy.new = function() {
    ;
  }).prototype = ui_web.UrlStrategy.prototype;
  dart.addRtiResources(ui_web.UrlStrategy, ["ui_web|UrlStrategy"]);
  dart.setLibraryUri(ui_web.UrlStrategy, I[217]);
  var _platformLocation$ = dart.privateName(ui_web, "HashUrlStrategy._platformLocation");
  var _platformLocation = dart.privateName(ui_web, "_platformLocation");
  var _waitForPopState = dart.privateName(ui_web, "_waitForPopState");
  ui_web.HashUrlStrategy = class HashUrlStrategy extends core.Object {
    get [_platformLocation]() {
      return this[_platformLocation$];
    }
    set [_platformLocation](value) {
      super[_platformLocation] = value;
    }
    static ['_#new#tearOff'](_platformLocation = C[820] || CT.C820) {
      if (_platformLocation == null) dart.nullFailed(I[222], 141, 13, "_platformLocation");
      return new ui_web.HashUrlStrategy.new(_platformLocation);
    }
    addPopStateListener(fn) {
      if (fn == null) dart.nullFailed(I[222], 146, 56, "fn");
      function wrappedFn(event) {
        if (event == null) dart.nullFailed(I[222], 147, 27, "event");
        fn(_engine['DomPopStateEventExtension|get#state'](T$9.DomPopStateEvent()[_as](event)));
      }
      dart.fn(wrappedFn, T$.ObjectTovoid());
      this[_platformLocation].addPopStateListener(wrappedFn);
      return dart.fn(() => this[_platformLocation].removePopStateListener(wrappedFn), T$.VoidTovoid());
    }
    getPath() {
      let t$36496;
      let path = (t$36496 = this[_platformLocation].hash, t$36496 == null ? "" : t$36496);
      if (!(path[$isEmpty] || path[$startsWith]("#"))) dart.assertFailed(null, I[222], 160, 12, "path.isEmpty || path.startsWith('#')");
      if (path[$isEmpty] || path === "#") {
        return "/";
      }
      return path[$substring](1);
    }
    getState() {
      return this[_platformLocation].state;
    }
    prepareExternalUrl(internalUrl) {
      if (internalUrl == null) dart.nullFailed(I[222], 174, 36, "internalUrl");
      let hash = null;
      if (internalUrl[$isEmpty] || internalUrl === "/") {
        hash = "";
      } else {
        hash = "#" + dart.str(internalUrl);
      }
      return dart.str(this[_platformLocation].pathname) + dart.str(this[_platformLocation].search) + dart.str(hash);
    }
    pushState(state, title, url) {
      if (title == null) dart.nullFailed(I[222], 193, 40, "title");
      if (url == null) dart.nullFailed(I[222], 193, 54, "url");
      this[_platformLocation].pushState(state, title, this.prepareExternalUrl(url));
    }
    replaceState(state, title, url) {
      if (title == null) dart.nullFailed(I[222], 198, 43, "title");
      if (url == null) dart.nullFailed(I[222], 198, 57, "url");
      this[_platformLocation].replaceState(state, title, this.prepareExternalUrl(url));
    }
    go(count) {
      if (count == null) dart.nullFailed(I[222], 203, 23, "count");
      this[_platformLocation].go(count);
      return this[_waitForPopState]();
    }
    [_waitForPopState]() {
      let completer = G$.CompleterOfvoid().new();
      let unsubscribe = null;
      let t$36$35unsubscribe$35isSet = false;
      function t$36$35unsubscribe$35get() {
        return t$36$35unsubscribe$35isSet ? unsubscribe : dart.throw(new _internal.LateError.localNI("unsubscribe"));
      }
      function t$36$35unsubscribe$35set(unsubscribe$35param) {
        if (unsubscribe$35param == null) dart.nullFailed(I[222], 214, 26, "unsubscribe#param");
        t$36$35unsubscribe$35isSet = true;
        return unsubscribe = unsubscribe$35param;
      }
      t$36$35unsubscribe$35set(this.addPopStateListener(dart.fn(_ => {
        t$36$35unsubscribe$35get()();
        completer.complete();
      }, T$.ObjectNTovoid())));
      return completer.future;
    }
  };
  (ui_web.HashUrlStrategy.new = function(_platformLocation = C[820] || CT.C820) {
    if (_platformLocation == null) dart.nullFailed(I[222], 141, 13, "_platformLocation");
    this[_platformLocation$] = _platformLocation;
    ;
  }).prototype = ui_web.HashUrlStrategy.prototype;
  dart.addRtiResources(ui_web.HashUrlStrategy, ["ui_web|HashUrlStrategy", "ui_web|UrlStrategy"]);
  dart.setMethodSignature(ui_web.HashUrlStrategy, () => dart.global.Object.setPrototypeOf({
    addPopStateListener: T$9.FnToFn$6(),
    getPath: T$.VoidToString(),
    getState: T$2.VoidToObjectN(),
    prepareExternalUrl: T$.StringToString(),
    pushState: T$9.ObjectNAndStringAndStringTovoid(),
    replaceState: T$9.ObjectNAndStringAndStringTovoid(),
    go: T$9.intToFutureOfvoid(),
    [_waitForPopState]: T$.VoidToFutureOfvoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui_web.HashUrlStrategy))));
  dart.setLibraryUri(ui_web.HashUrlStrategy, I[217]);
  dart.setFieldSignature(ui_web.HashUrlStrategy, () => dart.global.Object.setPrototypeOf({[_platformLocation]: {type: T$9.PlatformLocation(), isConst: false, isFinal: true, libraryUri: I[217]}}, dart.getFields(dart.global.Object.getPrototypeOf(ui_web.HashUrlStrategy))));
  ui_web.PlatformViewRegistry = class PlatformViewRegistry extends core.Object {
    registerViewFactory(viewType, viewFactory, opts) {
      if (viewType == null) dart.nullFailed(I[223], 41, 12, "viewType");
      if (viewFactory == null) dart.nullFailed(I[223], 42, 14, "viewFactory");
      let isVisible = opts && 'isVisible' in opts ? opts.isVisible : true;
      if (isVisible == null) dart.nullFailed(I[223], 43, 10, "isVisible");
      return _engine.PlatformViewManager.instance.registerFactory(viewType, viewFactory, {isVisible: isVisible});
    }
    getViewById(viewId) {
      if (viewId == null) dart.nullFailed(I[223], 55, 26, "viewId");
      return _engine.PlatformViewManager.instance.getViewById(viewId);
    }
    static ['_#new#tearOff']() {
      return new ui_web.PlatformViewRegistry.new();
    }
  };
  (ui_web.PlatformViewRegistry.new = function() {
    ;
  }).prototype = ui_web.PlatformViewRegistry.prototype;
  dart.addRtiResources(ui_web.PlatformViewRegistry, ["ui_web|PlatformViewRegistry"]);
  dart.setMethodSignature(ui_web.PlatformViewRegistry, () => dart.global.Object.setPrototypeOf({
    registerViewFactory: T$9.StringAndFunction__Tobool(),
    getViewById: T$9.intToObject()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(ui_web.PlatformViewRegistry))));
  dart.setLibraryUri(ui_web.PlatformViewRegistry, I[217]);
  dart.setStaticFieldSignature(ui_web.PlatformViewRegistry, () => ['defaultVisibleViewType', 'defaultInvisibleViewType']);
  dart.defineLazy(ui_web.PlatformViewRegistry, {
    /*ui_web.PlatformViewRegistry.defaultVisibleViewType*/get defaultVisibleViewType() {
      return "_default_document_create_element_visible";
    },
    /*ui_web.PlatformViewRegistry.defaultInvisibleViewType*/get defaultInvisibleViewType() {
      return "_default_document_create_element_invisible";
    }
  }, false);
  ui_web.createImageCodecFromUrl = function createImageCodecFromUrl(uri, opts) {
    if (uri == null) dart.nullFailed(I[224], 20, 7, "uri");
    let chunkCallback = opts && 'chunkCallback' in opts ? opts.chunkCallback : null;
    return _engine.renderer.instantiateImageCodecFromUrl(uri, {chunkCallback: chunkCallback});
  };
  ui_web.createImageFromImageBitmap = function createImageFromImageBitmap(imageSource) {
    if (imageSource == null) dart.nullFailed(I[224], 36, 53, "imageSource");
    if (!dart.test(_engine.domInstanceOfString(imageSource, "ImageBitmap"))) {
      dart.throw(new core.ArgumentError.new("Image source " + dart.str(imageSource) + " is not an ImageBitmap.", "imageSource"));
    }
    return _engine.renderer.createImageFromImageBitmap(T$9.DomImageBitmap()[_as](imageSource));
  };
  ui_web.createImageFromTextureSource = function createImageFromTextureSource(object, opts) {
    if (object == null) dart.nullFailed(I[224], 53, 55, "object");
    let width = opts && 'width' in opts ? opts.width : null;
    if (width == null) dart.nullFailed(I[224], 53, 79, "width");
    let height = opts && 'height' in opts ? opts.height : null;
    if (height == null) dart.nullFailed(I[224], 53, 99, "height");
    let transferOwnership = opts && 'transferOwnership' in opts ? opts.transferOwnership : false;
    if (transferOwnership == null) dart.nullFailed(I[224], 53, 112, "transferOwnership");
    return _engine.renderer.createImageFromTextureSource(object, {width: width, height: height, transferOwnership: transferOwnership});
  };
  ui_web.bootstrapEngine = function bootstrapEngine(opts) {
    let registerPlugins = opts && 'registerPlugins' in opts ? opts.registerPlugins : null;
    let runApp = opts && 'runApp' in opts ? opts.runApp : null;
    return async.async(T$.void(), function* bootstrapEngine() {
      let t$36499;
      let bootstrap = new _engine.AppBootstrap.new({initializeEngine: dart.fn((configuration = null) => async.async(T$.void(), function*() {
          yield _engine.initializeEngineServices({jsConfiguration: configuration});
        }), T$9.JsFlutterConfigurationNToFutureOfvoid()), runApp: dart.fn(() => async.async(T$.void(), function*() {
          if (registerPlugins != null) {
            registerPlugins();
          }
          yield _engine.initializeEngineUi();
          if (runApp != null) {
            runApp();
          }
        }), T$.VoidToFutureOfvoid())});
      let loader = (t$36499 = dart.global._flutter, t$36499 == null ? null : js_util.getProperty(T$9.FlutterLoaderN(), t$36499, "loader"));
      if (loader == null || dart.test(_engine['FlutterLoaderExtension|get#isAutoStart'](loader))) {
        yield bootstrap.autoStart();
      } else {
        loader.didCreateEngineInitializer(bootstrap.prepareEngineInitializer());
      }
    });
  };
  ui_web.preventCustomUrlStrategy = function preventCustomUrlStrategy() {
    ui_web._customUrlStrategyCanBeSet = false;
  };
  ui_web.debugResetCustomUrlStrategy = function debugResetCustomUrlStrategy() {
    ui_web.isCustomUrlStrategySet = false;
    ui_web._customUrlStrategyCanBeSet = true;
    ui_web._customUrlStrategy = null;
  };
  ui_web.setPluginHandler = function setPluginHandler(handler) {
    if (handler == null) dart.nullFailed(I[225], 11, 50, "handler");
    _engine.pluginMessageCallHandler = handler;
  };
  ui_web['SingletonFlutterWindowExtension|set#debugPhysicalSizeOverride'] = function SingletonFlutterWindowExtension$124set$35debugPhysicalSizeOverride($this, value) {
    if ($this == null) dart.nullFailed(I[226], 9, 7, "#this");
    T$9.EngineFlutterWindow()[_as]($this).debugPhysicalSizeOverride = value;
  };
  ui_web.debugOverrideDevicePixelRatio = function debugOverrideDevicePixelRatio(value) {
    _engine.EngineFlutterDisplay.instance.debugOverrideDevicePixelRatio(value);
  };
  dart.copyProperties(ui_web, {
    get assetManager() {
      return _engine.engineAssetManager;
    },
    set benchmarkValueCallback(callback) {
      _engine.engineBenchmarkValueCallback = callback;
    },
    get _defaultUrlStrategy() {
      let t$36500;
      t$36500 = ui_web.debugDefaultUrlStrategyOverride;
      return t$36500 == null ? ui_web._realDefaultUrlStrategy : t$36500;
    },
    get urlStrategy() {
      return dart.test(ui_web.isCustomUrlStrategySet) ? ui_web._customUrlStrategy : ui_web._defaultUrlStrategy;
    },
    set urlStrategy(strategy) {
      if (!dart.test(ui_web._customUrlStrategyCanBeSet)) dart.assertFailed("Cannot set URL strategy a second time or after the app has been initialized.", I[222], 53, 5, "_customUrlStrategyCanBeSet");
      ui_web.preventCustomUrlStrategy();
      ui_web.isCustomUrlStrategySet = true;
      ui_web._customUrlStrategy = strategy;
    },
    get debugEmulateFlutterTesterEnvironment() {
      return ui_web._debugEmulateFlutterTesterEnvironment;
    },
    set debugEmulateFlutterTesterEnvironment(value) {
      let t$36500;
      if (value == null) dart.nullFailed(I[226], 30, 47, "value");
      ui_web._debugEmulateFlutterTesterEnvironment = value;
      if (dart.test(ui_web._debugEmulateFlutterTesterEnvironment)) {
        let logicalSize = C[821] || CT.C821;
        let implicitView = _engine.EnginePlatformDispatcher.instance.implicitView;
        t$36500 = implicitView;
        t$36500 == null ? null : t$36500.debugPhysicalSizeOverride = logicalSize['*'](implicitView.devicePixelRatio);
      }
      _engine.debugDisableFontFallbacks = value;
    }
  });
  var TestHistoryEntry_url = dart.privateName(_engine, "TestHistoryEntry.url");
  var TestHistoryEntry_title = dart.privateName(_engine, "TestHistoryEntry.title");
  var TestHistoryEntry_state = dart.privateName(_engine, "TestHistoryEntry.state");
  dart.defineLazy(ui_web, {
    /*ui_web._desktopOperatingSystems*/get _desktopOperatingSystems() {
      return C[822] || CT.C822;
    },
    /*ui_web.browser*/get browser() {
      return ui_web.BrowserDetection.instance;
    },
    set browser(value) {
      if (value == null) dart.nullFailed(I[218], 202, 18, "browser");
    },
    /*ui_web.views*/get views() {
      return new ui_web.FlutterViewManagerProxy.new({viewManager: _engine.EnginePlatformDispatcher.instance.viewManager});
    },
    /*ui_web._popStateListenersCache*/get _popStateListenersCache() {
      return new (G$.LinkedMapOfObjectTodynamic$DomEventListener()).new();
    },
    /*ui_web._realDefaultUrlStrategy*/get _realDefaultUrlStrategy() {
      return dart.test(ui_web.debugEmulateFlutterTesterEnvironment) ? new _engine.TestUrlStrategy.fromEntry(C[823] || CT.C823) : C[824] || CT.C824;
    },
    set _realDefaultUrlStrategy(value) {
      if (value == null) dart.nullFailed(I[222], 10, 13, "_realDefaultUrlStrategy");
    },
    /*ui_web.debugDefaultUrlStrategyOverride*/get debugDefaultUrlStrategyOverride() {
      return null;
    },
    set debugDefaultUrlStrategyOverride(value) {},
    /*ui_web.isCustomUrlStrategySet*/get isCustomUrlStrategySet() {
      return false;
    },
    set isCustomUrlStrategySet(value) {
      if (value == null) dart.nullFailed(I[222], 28, 6, "isCustomUrlStrategySet");
    },
    /*ui_web._customUrlStrategyCanBeSet*/get _customUrlStrategyCanBeSet() {
      return true;
    },
    set _customUrlStrategyCanBeSet(value) {
      if (value == null) dart.nullFailed(I[222], 34, 6, "_customUrlStrategyCanBeSet");
    },
    /*ui_web._customUrlStrategy*/get _customUrlStrategy() {
      return null;
    },
    set _customUrlStrategy(value) {},
    /*ui_web.platformViewRegistry*/get platformViewRegistry() {
      return new ui_web.PlatformViewRegistry.new();
    },
    /*ui_web._debugEmulateFlutterTesterEnvironment*/get _debugEmulateFlutterTesterEnvironment() {
      return false;
    },
    set _debugEmulateFlutterTesterEnvironment(value) {
      if (value == null) dart.nullFailed(I[226], 40, 6, "_debugEmulateFlutterTesterEnvironment");
    }
  }, false);
  var callback = dart.privateName(_engine, "AlarmClock.callback");
  var _timer = dart.privateName(_engine, "_timer");
  var _datetime = dart.privateName(_engine, "_datetime");
  var _timestampFunction = dart.privateName(_engine, "_timestampFunction");
  var _cancelTimer = dart.privateName(_engine, "_cancelTimer");
  var _timerDidFire = dart.privateName(_engine, "_timerDidFire");
  _engine.AlarmClock = class AlarmClock extends core.Object {
    get callback() {
      return this[callback];
    }
    set callback(value) {
      this[callback] = value;
    }
    static ['_#new#tearOff'](timestampFunction) {
      if (timestampFunction == null) dart.nullFailed(I[227], 22, 32, "timestampFunction");
      return new _engine.AlarmClock.new(timestampFunction);
    }
    get datetime() {
      return this[_datetime];
    }
    set datetime(value) {
      if (dart.equals(value, this[_datetime])) {
        return;
      }
      if (value == null) {
        this[_cancelTimer]();
        this[_datetime] = null;
        return;
      }
      let now = this[_timestampFunction]();
      let isInTheFuture = !dart.test(value.isBefore(now));
      if (!isInTheFuture) {
        this[_cancelTimer]();
        this[_datetime] = value;
        return;
      }
      if (this[_timer] == null) {
        this[_timer] = async.Timer.new(value.difference(now), dart.bind(this, _timerDidFire));
      } else {
        if (!(this[_datetime] != null)) dart.assertFailed("We can only have a timer if there is a non-null datetime", I[227], 79, 14, "_datetime != null");
        if (dart.test(dart.nullCheck(this[_datetime]).isAfter(value))) {
          this[_cancelTimer]();
          this[_timer] = async.Timer.new(value.difference(now), dart.bind(this, _timerDidFire));
        }
      }
      this[_datetime] = value;
    }
    [_cancelTimer]() {
      let t$36500;
      t$36500 = this[_timer];
      t$36500 == null ? null : t$36500.cancel();
      this[_timer] = null;
    }
    [_timerDidFire]() {
      let t$36500;
      if (!(this[_datetime] != null)) dart.assertFailed("If _datetime is null, the timer would have been cancelled", I[227], 102, 12, "_datetime != null");
      let now = this[_timestampFunction]();
      if (!dart.test(now.isBefore(dart.nullCheck(this[_datetime])))) {
        this[_timer] = null;
        t$36500 = this.callback;
        t$36500 == null ? null : t$36500();
      } else {
        this[_timer] = async.Timer.new(dart.nullCheck(this[_datetime]).difference(now), dart.bind(this, _timerDidFire));
      }
    }
  };
  (_engine.AlarmClock.new = function(timestampFunction) {
    if (timestampFunction == null) dart.nullFailed(I[227], 22, 32, "timestampFunction");
    this[_timer] = null;
    this[_datetime] = null;
    this[callback] = null;
    this[_timestampFunction] = timestampFunction;
    ;
  }).prototype = _engine.AlarmClock.prototype;
  dart.addRtiResources(_engine.AlarmClock, ["_engine|AlarmClock"]);
  dart.setMethodSignature(_engine.AlarmClock, () => dart.global.Object.setPrototypeOf({
    [_cancelTimer]: T$.VoidTovoid(),
    [_timerDidFire]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.AlarmClock))));
  dart.setGetterSignature(_engine.AlarmClock, () => dart.global.Object.setPrototypeOf({datetime: T$5.DateTimeN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.AlarmClock))));
  dart.setSetterSignature(_engine.AlarmClock, () => dart.global.Object.setPrototypeOf({datetime: T$5.DateTimeN()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.AlarmClock))));
  dart.setLibraryUri(_engine.AlarmClock, I[220]);
  dart.setFieldSignature(_engine.AlarmClock, () => dart.global.Object.setPrototypeOf({
    [_timestampFunction]: {type: T$2.VoidToDateTime(), isConst: false, isFinal: true},
    [_timer]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_datetime]: {type: T$5.DateTimeN(), isConst: false, isFinal: false, libraryUri: I[11]},
    callback: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AlarmClock))));
  var _initializeEngine = dart.privateName(_engine, "_initializeEngine");
  var _runApp = dart.privateName(_engine, "_runApp");
  var _prepareFlutterApp = dart.privateName(_engine, "_prepareFlutterApp");
  var _prepareAppRunner = dart.privateName(_engine, "_prepareAppRunner");
  _engine.AppBootstrap = class AppBootstrap extends core.Object {
    static ['_#new#tearOff'](opts) {
      let initializeEngine = opts && 'initializeEngine' in opts ? opts.initializeEngine : null;
      if (initializeEngine == null) dart.nullFailed(I[228], 17, 39, "initializeEngine");
      let runApp = opts && 'runApp' in opts ? opts.runApp : null;
      if (runApp == null) dart.nullFailed(I[228], 17, 87, "runApp");
      return new _engine.AppBootstrap.new({initializeEngine: initializeEngine, runApp: runApp});
    }
    autoStart() {
      return async.async(T$.void(), (function* autoStart() {
        yield this[_initializeEngine]();
        yield this[_runApp]();
      }).bind(this));
    }
    prepareEngineInitializer() {
      return _engine.FlutterEngineInitializer.new({autoStart: dart.fn(() => async.async(T$9.FlutterApp(), (function*() {
          yield this.autoStart();
          return this[_prepareFlutterApp]();
        }).bind(this)), T$9.VoidToFutureOfFlutterApp()), initializeEngine: dart.fn((configuration = null) => async.async(T$9.FlutterAppRunner(), (function*() {
          let t$36500;
          yield (t$36500 = configuration, this[_initializeEngine](t$36500));
          return this[_prepareAppRunner]();
        }).bind(this)), T$9.JsFlutterConfigurationNToFutureOfFlutterAppRunner())});
    }
    [_prepareAppRunner]() {
      return _engine.FlutterAppRunner.new({runApp: dart.fn((params = null) => async.async(T$9.FlutterApp(), (function*() {
          yield this[_runApp]();
          return this[_prepareFlutterApp]();
        }).bind(this)), T$9.RunAppFnParametersNToFutureOfFlutterApp())});
    }
    get viewManager() {
      return _engine.EnginePlatformDispatcher.instance.viewManager;
    }
    [_prepareFlutterApp]() {
      return _engine.FlutterApp.new({addView: dart.fn(options => {
          if (options == null) dart.nullFailed(I[228], 67, 38, "options");
          if (!dart.test(_engine.configuration.multiViewEnabled)) dart.assertFailed("Cannot addView when multiView is not enabled", I[228], 68, 16, "configuration.multiViewEnabled");
          return this.viewManager.createAndRegisterView(options).viewId;
        }, T$9.JsFlutterViewOptionsToint()), removeView: dart.fn(viewId => {
          if (viewId == null) dart.nullFailed(I[228], 71, 24, "viewId");
          if (!dart.test(_engine.configuration.multiViewEnabled)) dart.assertFailed("Cannot removeView when multiView is not enabled", I[228], 72, 16, "configuration.multiViewEnabled");
          return this.viewManager.disposeAndUnregisterView(viewId);
        }, T$9.intToJsFlutterViewOptionsN())});
    }
  };
  (_engine.AppBootstrap.new = function(opts) {
    let initializeEngine = opts && 'initializeEngine' in opts ? opts.initializeEngine : null;
    if (initializeEngine == null) dart.nullFailed(I[228], 17, 39, "initializeEngine");
    let runApp = opts && 'runApp' in opts ? opts.runApp : null;
    if (runApp == null) dart.nullFailed(I[228], 17, 87, "runApp");
    this[_initializeEngine] = initializeEngine;
    this[_runApp] = runApp;
    ;
  }).prototype = _engine.AppBootstrap.prototype;
  dart.addRtiResources(_engine.AppBootstrap, ["_engine|AppBootstrap"]);
  dart.setMethodSignature(_engine.AppBootstrap, () => dart.global.Object.setPrototypeOf({
    autoStart: T$.VoidToFutureOfvoid(),
    prepareEngineInitializer: T$9.VoidToFlutterEngineInitializer(),
    [_prepareAppRunner]: T$9.VoidToFlutterAppRunner(),
    [_prepareFlutterApp]: T$9.VoidToFlutterApp()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.AppBootstrap))));
  dart.setGetterSignature(_engine.AppBootstrap, () => dart.global.Object.setPrototypeOf({viewManager: T$9.FlutterViewManager()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.AppBootstrap))));
  dart.setLibraryUri(_engine.AppBootstrap, I[220]);
  dart.setFieldSignature(_engine.AppBootstrap, () => dart.global.Object.setPrototypeOf({
    [_initializeEngine]: {type: T$9.JsFlutterConfigurationNToFutureOfvoid(), isConst: false, isFinal: true},
    [_runApp]: {type: T$.VoidToFutureOfvoid(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AppBootstrap))));
  _engine.WebGLVersion = class WebGLVersion extends core.Object {};
  (_engine.WebGLVersion.new = function() {
    ;
  }).prototype = _engine.WebGLVersion.prototype;
  dart.addRtiResources(_engine.WebGLVersion, ["_engine|WebGLVersion"]);
  dart.setLibraryUri(_engine.WebGLVersion, I[220]);
  dart.setStaticFieldSignature(_engine.WebGLVersion, () => ['webgl1', 'webgl2']);
  dart.defineLazy(_engine.WebGLVersion, {
    /*_engine.WebGLVersion.webgl1*/get webgl1() {
      return 1;
    },
    /*_engine.WebGLVersion.webgl2*/get webgl2() {
      return 2;
    }
  }, false);
  var _context = dart.privateName(_engine, "_context");
  var _contextHandle = dart.privateName(_engine, "_contextHandle");
  var _activeCanvasList = dart.privateName(_engine, "_activeCanvasList");
  var _reusablePool = dart.privateName(_engine, "_reusablePool");
  var _canvas$ = dart.privateName(_engine, "_canvas");
  var _rootElement = dart.privateName(_engine, "_rootElement");
  var _saveContextCount = dart.privateName(_engine, "_saveContextCount");
  var _widthInBitmapPixels$ = dart.privateName(_engine, "_widthInBitmapPixels");
  var _heightInBitmapPixels$ = dart.privateName(_engine, "_heightInBitmapPixels");
  var _density$ = dart.privateName(_engine, "_density");
  var _createCanvas = dart.privateName(_engine, "_createCanvas");
  var _restoreContextSave = dart.privateName(_engine, "_restoreContextSave");
  var _allocCanvas = dart.privateName(_engine, "_allocCanvas");
  var _initializeViewport = dart.privateName(_engine, "_initializeViewport");
  var _replayClipStack = dart.privateName(_engine, "_replayClipStack");
  var _clipRect$ = dart.privateName(_engine, "_clipRect");
  var _clipRRect$ = dart.privateName(_engine, "_clipRRect");
  var _runPath = dart.privateName(_engine, "_runPath");
  var _replaySingleSaveEntry = dart.privateName(_engine, "_replaySingleSaveEntry");
  var _saveStack = dart.privateName(_engine, "_saveStack");
  var _currentTransform = dart.privateName(_engine, "_currentTransform");
  var _resetTransform = dart.privateName(_engine, "_resetTransform");
  var _shaderBounds = dart.privateName(_engine, "_shaderBounds");
  var _runPathWithOffset = dart.privateName(_engine, "_runPathWithOffset");
  var _clearActiveCanvasList = dart.privateName(_engine, "_clearActiveCanvasList");
  var clipStack = dart.privateName(_engine, "_SaveStackTracking.clipStack");
  _engine._SaveStackTracking = class _SaveStackTracking extends core.Object {
    get clipStack() {
      return this[clipStack];
    }
    set clipStack(value) {
      this[clipStack] = value;
    }
    get isClipped() {
      return this.clipStack != null;
    }
    clear() {
      this[_saveStack][$clear]();
      this.clipStack = null;
      this[_currentTransform] = new _engine.Matrix4.identity();
    }
    get currentTransform() {
      return this[_currentTransform];
    }
    save() {
      this[_saveStack][$add](new _engine.SaveStackEntry.new({transform: this[_currentTransform].clone(), clipStack: this.clipStack == null ? null : G$.ListOfSaveClipEntry().from(dart.nullCheck(this.clipStack))}));
    }
    restore() {
      if (dart.test(this[_saveStack][$isEmpty])) {
        return;
      }
      let entry = this[_saveStack][$removeLast]();
      this[_currentTransform] = entry.transform;
      this.clipStack = entry.clipStack;
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[229], 1158, 25, "dx");
      if (dy == null) dart.nullFailed(I[229], 1158, 36, "dy");
      this[_currentTransform].translate(dx, dy);
    }
    scale(sx, sy) {
      if (sx == null) dart.nullFailed(I[229], 1164, 21, "sx");
      if (sy == null) dart.nullFailed(I[229], 1164, 32, "sy");
      this[_currentTransform].scale(sx, sy);
    }
    rotate(radians) {
      if (radians == null) dart.nullFailed(I[229], 1170, 22, "radians");
      this[_currentTransform].rotate(_engine.kUnitZ, radians);
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[229], 1176, 20, "sx");
      if (sy == null) dart.nullFailed(I[229], 1176, 31, "sy");
      let skewMatrix = new _engine.Matrix4.identity();
      let storage = skewMatrix.storage;
      storage[$_set](1, sy);
      storage[$_set](4, sx);
      this[_currentTransform].multiply(skewMatrix);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[229], 1186, 30, "matrix4");
      this[_currentTransform].multiply(new _engine.Matrix4.fromFloat32List(matrix4));
    }
    clipRect(rect) {
      if (rect == null) dart.nullFailed(I[229], 1192, 25, "rect");
      this.clipStack == null ? this.clipStack = G$.JSArrayOfSaveClipEntry().of([]) : null;
      dart.nullCheck(this.clipStack)[$add](new _engine.SaveClipEntry.rect(rect, this[_currentTransform].clone()));
    }
    clipRRect(rrect) {
      if (rrect == null) dart.nullFailed(I[229], 1199, 27, "rrect");
      this.clipStack == null ? this.clipStack = G$.JSArrayOfSaveClipEntry().of([]) : null;
      dart.nullCheck(this.clipStack)[$add](new _engine.SaveClipEntry.rrect(rrect, this[_currentTransform].clone()));
    }
    clipPath(path) {
      if (path == null) dart.nullFailed(I[229], 1206, 25, "path");
      this.clipStack == null ? this.clipStack = G$.JSArrayOfSaveClipEntry().of([]) : null;
      dart.nullCheck(this.clipStack)[$add](new _engine.SaveClipEntry.path(path, this[_currentTransform].clone()));
    }
    static ['_#new#tearOff']() {
      return new _engine._SaveStackTracking.new();
    }
  };
  (_engine._SaveStackTracking.new = function() {
    this[_saveStack] = G$.JSArrayOfSaveStackEntry().of([]);
    this[clipStack] = null;
    this[_currentTransform] = new _engine.Matrix4.identity();
    ;
  }).prototype = _engine._SaveStackTracking.prototype;
  dart.addRtiResources(_engine._SaveStackTracking, ["_engine|_SaveStackTracking"]);
  dart.setMethodSignature(_engine._SaveStackTracking, () => dart.global.Object.setPrototypeOf({
    clear: T$.VoidTovoid(),
    save: T$.VoidTovoid(),
    restore: T$.VoidTovoid(),
    translate: T$9.doubleAnddoubleTovoid(),
    scale: T$9.doubleAnddoubleTovoid(),
    rotate: T$9.doubleTovoid(),
    skew: T$9.doubleAnddoubleTovoid(),
    transform: T$7.Float32ListTovoid(),
    clipRect: T$9.RectTovoid(),
    clipRRect: T$9.RRectTovoid(),
    clipPath: T$9.PathTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._SaveStackTracking))));
  dart.setGetterSignature(_engine._SaveStackTracking, () => dart.global.Object.setPrototypeOf({
    isClipped: T$.bool(),
    currentTransform: T$9.Matrix4()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._SaveStackTracking))));
  dart.setLibraryUri(_engine._SaveStackTracking, I[220]);
  dart.setFieldSignature(_engine._SaveStackTracking, () => dart.global.Object.setPrototypeOf({
    [_saveStack]: {type: T$9.ListOfSaveStackEntry(), isConst: false, isFinal: true, libraryUri: I[11]},
    clipStack: {type: T$9.ListNOfSaveClipEntry(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentTransform]: {type: T$9.Matrix4(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._SaveStackTracking))));
  _engine.CanvasPool = class CanvasPool extends _engine._SaveStackTracking {
    static ['_#new#tearOff'](_widthInBitmapPixels, _heightInBitmapPixels, _density) {
      if (_widthInBitmapPixels == null) dart.nullFailed(I[229], 28, 19, "_widthInBitmapPixels");
      if (_heightInBitmapPixels == null) dart.nullFailed(I[229], 28, 46, "_heightInBitmapPixels");
      if (_density == null) dart.nullFailed(I[229], 29, 12, "_density");
      return new _engine.CanvasPool.new(_widthInBitmapPixels, _heightInBitmapPixels, _density);
    }
    mount(rootElement) {
      if (rootElement == null) dart.nullFailed(I[229], 46, 29, "rootElement");
      this[_rootElement] = rootElement;
    }
    set initialTransform(transform) {
      if (transform == null) dart.nullFailed(I[229], 54, 34, "transform");
      this.translate(transform.dx, transform.dy);
    }
    get context() {
      let ctx = this[_context];
      if (ctx == null) {
        this[_createCanvas]();
        ctx = this[_context];
        if (!(this[_context] != null)) dart.assertFailed(null, I[229], 64, 14, "_context != null");
        if (!(this[_canvas$] != null)) dart.assertFailed(null, I[229], 65, 14, "_canvas != null");
      }
      return dart.nullCheck(ctx);
    }
    get contextHandle() {
      if (this[_canvas$] == null) {
        this[_createCanvas]();
        if (!(this[_context] != null)) dart.assertFailed(null, I[229], 75, 14, "_context != null");
        if (!(this[_canvas$] != null)) dart.assertFailed(null, I[229], 76, 14, "_canvas != null");
      }
      return dart.nullCheck(this[_contextHandle]);
    }
    get hasCanvas() {
      return this[_canvas$] != null;
    }
    closeCanvas() {
      if (!(this[_rootElement] != null)) dart.assertFailed(null, I[229], 103, 12, "_rootElement != null");
      if (this[_canvas$] != null) {
        this[_restoreContextSave]();
        dart.nullCheck(this[_contextHandle]).reset();
        this[_activeCanvasList] == null ? this[_activeCanvasList] = G$.JSArrayOfDomCanvasElement().of([]) : null;
        dart.nullCheck(this[_activeCanvasList])[$add](dart.nullCheck(this[_canvas$]));
        this[_canvas$] = null;
        this[_context] = null;
        this[_contextHandle] = null;
      }
    }
    [_createCanvas]() {
      let t$36500, t$36501, t$36501$;
      let requiresClearRect = false;
      let reused = false;
      let canvas = null;
      if (this[_canvas$] != null) {
        _engine['DomCanvasElementExtension|set#width'](dart.nullCheck(this[_canvas$]), 0.0);
        _engine['DomCanvasElementExtension|set#height'](dart.nullCheck(this[_canvas$]), 0.0);
        this[_canvas$] = null;
      }
      if (this[_reusablePool] != null && dart.test(dart.nullCheck(this[_reusablePool])[$isNotEmpty])) {
        canvas = this[_canvas$] = dart.nullCheck(this[_reusablePool])[$removeAt](0);
        requiresClearRect = true;
        reused = true;
      } else {
        let cssWidth = dart.notNull(this[_widthInBitmapPixels$]) / dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio);
        let cssHeight = dart.notNull(this[_heightInBitmapPixels$]) / dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio);
        canvas = this[_allocCanvas](this[_widthInBitmapPixels$], this[_heightInBitmapPixels$]);
        this[_canvas$] = canvas;
        if (this[_canvas$] == null) {
          _engine.reduceCanvasMemoryUsage();
          canvas = this[_allocCanvas](this[_widthInBitmapPixels$], this[_heightInBitmapPixels$]);
        }
        t$36500 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(canvas), "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#position'](t$36500, "absolute");
          _engine['DomCSSStyleDeclarationExtension|set#width'](t$36500, dart.strSafe(cssWidth) + "px");
          _engine['DomCSSStyleDeclarationExtension|set#height'](t$36500, dart.strSafe(cssHeight) + "px");
          return t$36500;
        })();
      }
      if (!dart.equals(js_util.getProperty(T$9.DomNodeN(), dart.nullCheck(this[_rootElement]), "lastChild"), canvas)) {
        dart.nullCheck(this[_rootElement]).append(canvas);
      }
      try {
        if (reused) {
          _engine['DomCSSStyleDeclarationExtension|removeProperty'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), canvas, "style"), "z-index");
        }
        this[_context] = _engine['DomCanvasElementExtension|get#context2D'](canvas);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e;
      }
      if (this[_context] == null) {
        _engine.reduceCanvasMemoryUsage();
        this[_context] = _engine['DomCanvasElementExtension|get#context2D'](canvas);
      }
      if (this[_context] == null) {
        t$36501 = this[_canvas$];
        t$36501 == null ? null : _engine['DomCanvasElementExtension|set#width'](t$36501, 0.0);
        t$36501$ = this[_canvas$];
        t$36501$ == null ? null : _engine['DomCanvasElementExtension|set#height'](t$36501$, 0.0);
        this[_canvas$] = null;
        return;
      }
      this[_contextHandle] = new _engine.ContextStateHandle.new(this, dart.nullCheck(this[_context]), this[_density$]);
      this[_initializeViewport](requiresClearRect);
      this[_replayClipStack]();
    }
    [_allocCanvas](width, height) {
      if (width == null) dart.nullFailed(I[229], 195, 38, "width");
      if (height == null) dart.nullFailed(I[229], 195, 49, "height");
      return _engine.tryCreateCanvasElement((dart.notNull(width) * dart.notNull(this[_density$]))[$ceil](), (dart.notNull(height) * dart.notNull(this[_density$]))[$ceil]());
    }
    clear() {
      super.clear();
      if (this[_canvas$] != null) {
        let ctx = this[_context];
        if (ctx != null) {
          try {
            _engine['DomCanvasRenderingContext2DExtension|set#font'](ctx, "");
          } catch (t$36$35e) {
            let e = dart.getThrown(t$36$35e);
            if (T$.Object()[_is](e)) {
              if (!dart.test(_engine.isNsErrorFailureException(e))) {
                dart.rethrow(t$36$35e);
              }
            } else
              throw t$36$35e;
          }
        }
      }
      this.reuse();
    }
    [_replaySingleSaveEntry](clipDepth, prevTransform, transform, clipStack) {
      if (clipDepth == null) dart.nullFailed(I[229], 226, 34, "clipDepth");
      if (prevTransform == null) dart.nullFailed(I[229], 226, 53, "prevTransform");
      if (transform == null) dart.nullFailed(I[229], 227, 15, "transform");
      let ctx = this.context;
      if (clipStack != null) {
        for (let clipCount = clipStack[$length]; dart.notNull(clipDepth) < dart.notNull(clipCount); clipDepth = dart.notNull(clipDepth) + 1) {
          let clipEntry = clipStack[$_get](clipDepth);
          let clipTimeTransform = clipEntry.currentTransform;
          if (clipTimeTransform._get(0) != prevTransform._get(0) || clipTimeTransform._get(1) != prevTransform._get(1) || clipTimeTransform._get(4) != prevTransform._get(4) || clipTimeTransform._get(5) != prevTransform._get(5) || clipTimeTransform._get(12) != prevTransform._get(12) || clipTimeTransform._get(13) != prevTransform._get(13)) {
            let ratio = this.dpi;
            _engine['DomCanvasRenderingContext2DExtension|setTransform'](ctx, ratio, 0, 0, ratio, 0, 0);
            _engine['DomCanvasRenderingContext2DExtension|transform'](ctx, clipTimeTransform._get(0), clipTimeTransform._get(1), clipTimeTransform._get(4), clipTimeTransform._get(5), clipTimeTransform._get(12), clipTimeTransform._get(13));
            prevTransform = clipTimeTransform;
          }
          if (clipEntry.rect != null) {
            this[_clipRect$](ctx, dart.nullCheck(clipEntry.rect));
          } else if (clipEntry.rrect != null) {
            this[_clipRRect$](ctx, dart.nullCheck(clipEntry.rrect));
          } else if (clipEntry.path != null) {
            let path = T$9.SurfacePath()[_as](dart.nullCheck(clipEntry.path));
            this[_runPath](ctx, path);
            if (path.fillType == ui.PathFillType.nonZero) {
              _engine['DomCanvasRenderingContext2DExtension|clip'](ctx);
            } else {
              _engine['DomCanvasRenderingContext2DExtension|clip'](ctx, "evenodd");
            }
          }
        }
      }
      if (transform._get(0) != prevTransform._get(0) || transform._get(1) != prevTransform._get(1) || transform._get(4) != prevTransform._get(4) || transform._get(5) != prevTransform._get(5) || transform._get(12) != prevTransform._get(12) || transform._get(13) != prevTransform._get(13)) {
        let ratio = this.dpi;
        _engine['DomCanvasRenderingContext2DExtension|setTransform'](ctx, ratio, 0, 0, ratio, 0, 0);
        _engine['DomCanvasRenderingContext2DExtension|transform'](ctx, transform._get(0), transform._get(1), transform._get(4), transform._get(5), transform._get(12), transform._get(13));
      }
      return clipDepth;
    }
    [_replayClipStack]() {
      let ctx = this.context;
      let clipDepth = 0;
      let prevTransform = new _engine.Matrix4.identity();
      let len = this[_saveStack][$length];
      for (let saveStackIndex = 0; saveStackIndex < dart.notNull(len); saveStackIndex = saveStackIndex + 1) {
        let saveEntry = this[_saveStack][$_get](saveStackIndex);
        clipDepth = this[_replaySingleSaveEntry](clipDepth, prevTransform, saveEntry.transform, saveEntry.clipStack);
        prevTransform = saveEntry.transform;
        ctx.save();
        this[_saveContextCount] = dart.notNull(this[_saveContextCount]) + 1;
      }
      this[_replaySingleSaveEntry](clipDepth, prevTransform, this[_currentTransform], this.clipStack);
    }
    reuse() {
      if (this[_canvas$] != null) {
        this[_restoreContextSave]();
        dart.nullCheck(this[_contextHandle]).reset();
        this[_activeCanvasList] == null ? this[_activeCanvasList] = G$.JSArrayOfDomCanvasElement().of([]) : null;
        dart.nullCheck(this[_activeCanvasList])[$add](dart.nullCheck(this[_canvas$]));
        this[_context] = null;
        this[_contextHandle] = null;
      }
      this[_reusablePool] = this[_activeCanvasList];
      this[_activeCanvasList] = null;
      this[_canvas$] = null;
      this[_context] = null;
      this[_contextHandle] = null;
      this[_resetTransform]();
    }
    endOfPaint() {
      let t$36502;
      if (this[_reusablePool] != null) {
        for (let e of dart.nullCheck(this[_reusablePool])) {
          if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
            _engine['DomCanvasElementExtension|set#width'](e, (t$36502 = 0.0, _engine['DomCanvasElementExtension|set#height'](e, t$36502), t$36502));
          }
          e.remove();
        }
        this[_reusablePool] = null;
      }
      this[_restoreContextSave]();
    }
    [_restoreContextSave]() {
      while (this[_saveContextCount] !== 0) {
        dart.nullCheck(this[_context]).restore();
        this[_saveContextCount] = dart.notNull(this[_saveContextCount]) - 1;
      }
    }
    [_initializeViewport](clearCanvas) {
      if (clearCanvas == null) dart.nullFailed(I[229], 346, 33, "clearCanvas");
      let ctx = this.context;
      ctx.save();
      this[_saveContextCount] = dart.notNull(this[_saveContextCount]) + 1;
      _engine['DomCanvasRenderingContext2DExtension|setTransform'](ctx, 1, 0, 0, 1, 0, 0);
      if (dart.test(clearCanvas)) {
        _engine['DomCanvasRenderingContext2DExtension|clearRect'](ctx, 0, 0, dart.notNull(this[_widthInBitmapPixels$]) * dart.notNull(this[_density$]), dart.notNull(this[_heightInBitmapPixels$]) * dart.notNull(this[_density$]));
      }
      _engine['DomCanvasRenderingContext2DExtension|scale'](ctx, this.dpi, this.dpi);
    }
    get dpi() {
      return dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio) * dart.notNull(this[_density$]);
    }
    [_resetTransform]() {
      let canvas = this[_canvas$];
      if (canvas != null) {
        _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), canvas, "style"), "");
        _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), canvas, "style"), "");
      }
    }
    toDataUrl() {
      if (this[_canvas$] == null) {
        this[_createCanvas]();
      }
      return _engine['DomCanvasElementExtension|toDataURL'](dart.nullCheck(this[_canvas$]));
    }
    save() {
      super.save();
      if (this[_canvas$] != null) {
        this.context.save();
        this[_saveContextCount] = dart.notNull(this[_saveContextCount]) + 1;
      }
    }
    restore() {
      super.restore();
      if (this[_canvas$] != null) {
        this.context.restore();
        this.contextHandle.reset();
        this[_saveContextCount] = dart.notNull(this[_saveContextCount]) - 1;
      }
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[229], 407, 25, "dx");
      if (dy == null) dart.nullFailed(I[229], 407, 36, "dy");
      super.translate(dx, dy);
      if (this[_canvas$] != null) {
        _engine['DomCanvasRenderingContext2DExtension|translate'](this.context, dx, dy);
      }
    }
    scale(sx, sy) {
      if (sx == null) dart.nullFailed(I[229], 415, 21, "sx");
      if (sy == null) dart.nullFailed(I[229], 415, 32, "sy");
      super.scale(sx, sy);
      if (this[_canvas$] != null) {
        _engine['DomCanvasRenderingContext2DExtension|scale'](this.context, sx, sy);
      }
    }
    rotate(radians) {
      if (radians == null) dart.nullFailed(I[229], 423, 22, "radians");
      super.rotate(radians);
      if (this[_canvas$] != null) {
        _engine['DomCanvasRenderingContext2DExtension|rotate'](this.context, radians);
      }
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[229], 431, 20, "sx");
      if (sy == null) dart.nullFailed(I[229], 431, 31, "sy");
      super.skew(sx, sy);
      if (this[_canvas$] != null) {
        _engine['DomCanvasRenderingContext2DExtension|transform'](this.context, 1, sy, sx, 1, 0, 0);
      }
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[229], 448, 30, "matrix4");
      super.transform(matrix4);
      if (this[_canvas$] != null) {
        _engine['DomCanvasRenderingContext2DExtension|transform'](this.context, matrix4[$_get](0), matrix4[$_get](1), matrix4[$_get](4), matrix4[$_get](5), matrix4[$_get](12), matrix4[$_get](13));
      }
    }
    clipRect(rect) {
      if (rect == null) dart.nullFailed(I[229], 477, 25, "rect");
      super.clipRect(rect);
      if (this[_canvas$] != null) {
        this[_clipRect$](this.context, rect);
      }
    }
    [_clipRect$](ctx, rect) {
      if (ctx == null) dart.nullFailed(I[229], 484, 46, "ctx");
      if (rect == null) dart.nullFailed(I[229], 484, 59, "rect");
      ctx.beginPath();
      _engine['DomCanvasRenderingContext2DExtension|rect'](ctx, rect.left, rect.top, rect.width, rect.height);
      _engine['DomCanvasRenderingContext2DExtension|clip'](ctx);
    }
    clipRRect(rrect) {
      if (rrect == null) dart.nullFailed(I[229], 491, 27, "rrect");
      super.clipRRect(rrect);
      if (this[_canvas$] != null) {
        this[_clipRRect$](this.context, rrect);
      }
    }
    [_clipRRect$](ctx, rrect) {
      let t$36502;
      if (ctx == null) dart.nullFailed(I[229], 498, 47, "ctx");
      if (rrect == null) dart.nullFailed(I[229], 498, 61, "rrect");
      let path = (t$36502 = ui.Path.new(), (() => {
        t$36502.addRRect(rrect);
        return t$36502;
      })());
      this[_runPath](ctx, T$9.SurfacePath()[_as](path));
      _engine['DomCanvasRenderingContext2DExtension|clip'](ctx);
    }
    clipPath(path) {
      if (path == null) dart.nullFailed(I[229], 505, 25, "path");
      super.clipPath(path);
      if (this[_canvas$] != null) {
        let ctx = this.context;
        this[_runPath](ctx, T$9.SurfacePath()[_as](path));
        if (path.fillType == ui.PathFillType.nonZero) {
          _engine['DomCanvasRenderingContext2DExtension|clip'](ctx);
        } else {
          _engine['DomCanvasRenderingContext2DExtension|clip'](ctx, "evenodd");
        }
      }
    }
    drawColor(color, blendMode) {
      if (color == null) dart.nullFailed(I[229], 519, 27, "color");
      if (blendMode == null) dart.nullFailed(I[229], 519, 47, "blendMode");
      let ctx = this.context;
      this.contextHandle.blendMode = blendMode;
      this.contextHandle.fillStyle = _engine['CssColor|toCssString'](color);
      this.contextHandle.strokeStyle = "";
      ctx.beginPath();
      _engine['DomCanvasRenderingContext2DExtension|fillRect'](ctx, -10000, -10000, 20000, 20000);
    }
    fill() {
      let ctx = this.context;
      ctx.beginPath();
      _engine['DomCanvasRenderingContext2DExtension|fillRect'](ctx, -10000, -10000, 20000, 20000);
    }
    strokeLine(p1, p2) {
      if (p1 == null) dart.nullFailed(I[229], 542, 29, "p1");
      if (p2 == null) dart.nullFailed(I[229], 542, 43, "p2");
      let ctx = this.context;
      ctx.beginPath();
      let shaderBounds = this.contextHandle[_shaderBounds];
      if (shaderBounds == null) {
        _engine['DomCanvasRenderingContext2DExtension|moveTo'](ctx, p1.dx, p1.dy);
        _engine['DomCanvasRenderingContext2DExtension|lineTo'](ctx, p2.dx, p2.dy);
      } else {
        _engine['DomCanvasRenderingContext2DExtension|moveTo'](ctx, dart.notNull(p1.dx) - dart.notNull(shaderBounds.left), dart.notNull(p1.dy) - dart.notNull(shaderBounds.top));
        _engine['DomCanvasRenderingContext2DExtension|lineTo'](ctx, dart.notNull(p2.dx) - dart.notNull(shaderBounds.left), dart.notNull(p2.dy) - dart.notNull(shaderBounds.top));
      }
      ctx.stroke();
    }
    drawPoints(pointMode, points, radius) {
      if (pointMode == null) dart.nullFailed(I[229], 558, 32, "pointMode");
      if (points == null) dart.nullFailed(I[229], 558, 55, "points");
      if (radius == null) dart.nullFailed(I[229], 558, 70, "radius");
      let ctx = this.context;
      let len = points[$length];
      let shaderBounds = this.contextHandle[_shaderBounds];
      let offsetX = shaderBounds == null ? 0.0 : -dart.notNull(shaderBounds.left);
      let offsetY = shaderBounds == null ? 0.0 : -dart.notNull(shaderBounds.top);
      switch (pointMode) {
        case C[501] || CT.C501:
          {
            for (let i = 0; i < dart.notNull(len); i = i + 2) {
              let x = dart.notNull(points[$_get](i)) + offsetX;
              let y = dart.notNull(points[$_get](i + 1)) + offsetY;
              ctx.beginPath();
              _engine['DomCanvasRenderingContext2DExtension|arc'](ctx, x, y, radius, 0, 2.0 * 3.141592653589793);
              _engine['DomCanvasRenderingContext2DExtension|fill'](ctx);
            }
            break;
          }
        case C[502] || CT.C502:
          {
            ctx.beginPath();
            for (let i = 0; i < dart.notNull(len) - 2; i = i + 4) {
              _engine['DomCanvasRenderingContext2DExtension|moveTo'](ctx, dart.notNull(points[$_get](i)) + offsetX, dart.notNull(points[$_get](i + 1)) + offsetY);
              _engine['DomCanvasRenderingContext2DExtension|lineTo'](ctx, dart.notNull(points[$_get](i + 2)) + offsetX, dart.notNull(points[$_get](i + 3)) + offsetY);
              ctx.stroke();
            }
            break;
          }
        case C[503] || CT.C503:
          {
            ctx.beginPath();
            _engine['DomCanvasRenderingContext2DExtension|moveTo'](ctx, dart.notNull(points[$_get](0)) + offsetX, dart.notNull(points[$_get](1)) + offsetY);
            for (let i = 2; i < dart.notNull(len); i = i + 2) {
              _engine['DomCanvasRenderingContext2DExtension|lineTo'](ctx, dart.notNull(points[$_get](i)) + offsetX, dart.notNull(points[$_get](i + 1)) + offsetY);
            }
            ctx.stroke();
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
    [_runPath](ctx, path) {
      if (ctx == null) dart.nullFailed(I[229], 594, 45, "ctx");
      if (path == null) dart.nullFailed(I[229], 594, 62, "path");
      ctx.beginPath();
      let p = _engine.CanvasPool._runBuffer;
      let iter = new _engine.PathRefIterator.new(path.pathRef);
      let verb = 0;
      while ((verb = iter.next(p)) !== 6) {
        switch (verb) {
          case 0:
            {
              _engine['DomCanvasRenderingContext2DExtension|moveTo'](ctx, p[$_get](0), p[$_get](1));
              break;
            }
          case 1:
            {
              _engine['DomCanvasRenderingContext2DExtension|lineTo'](ctx, p[$_get](2), p[$_get](3));
              break;
            }
          case 4:
            {
              _engine['DomCanvasRenderingContext2DExtension|bezierCurveTo'](ctx, p[$_get](2), p[$_get](3), p[$_get](4), p[$_get](5), p[$_get](6), p[$_get](7));
              break;
            }
          case 2:
            {
              _engine['DomCanvasRenderingContext2DExtension|quadraticCurveTo'](ctx, p[$_get](2), p[$_get](3), p[$_get](4), p[$_get](5));
              break;
            }
          case 3:
            {
              let w = iter.conicWeight;
              let conic = new _engine.Conic.new(p[$_get](0), p[$_get](1), p[$_get](2), p[$_get](3), p[$_get](4), p[$_get](5), w);
              let points = conic.toQuads();
              let len = points[$length];
              for (let i = 1; i < dart.notNull(len); i = i + 2) {
                let p1x = points[$_get](i).dx;
                let p1y = points[$_get](i).dy;
                let p2x = points[$_get](i + 1).dx;
                let p2y = points[$_get](i + 1).dy;
                _engine['DomCanvasRenderingContext2DExtension|quadraticCurveTo'](ctx, p1x, p1y, p2x, p2y);
              }
              break;
            }
          case 5:
            {
              ctx.closePath();
              break;
            }
          default:
            {
              dart.throw(new core.UnimplementedError.new("Unknown path verb " + dart.str(verb)));
            }
        }
      }
    }
    drawRect(rect, style) {
      if (rect == null) dart.nullFailed(I[229], 630, 25, "rect");
      this.context.beginPath();
      let shaderBounds = this.contextHandle[_shaderBounds];
      if (shaderBounds == null) {
        _engine['DomCanvasRenderingContext2DExtension|rect'](this.context, rect.left, rect.top, rect.width, rect.height);
      } else {
        _engine['DomCanvasRenderingContext2DExtension|rect'](this.context, dart.notNull(rect.left) - dart.notNull(shaderBounds.left), dart.notNull(rect.top) - dart.notNull(shaderBounds.top), rect.width, rect.height);
      }
      this.contextHandle.paint(style);
    }
    [_runPathWithOffset](ctx, path, offsetX, offsetY) {
      if (ctx == null) dart.nullFailed(I[229], 645, 55, "ctx");
      if (path == null) dart.nullFailed(I[229], 645, 72, "path");
      if (offsetX == null) dart.nullFailed(I[229], 646, 14, "offsetX");
      if (offsetY == null) dart.nullFailed(I[229], 646, 30, "offsetY");
      ctx.beginPath();
      let p = _engine.CanvasPool._runBuffer;
      let iter = new _engine.PathRefIterator.new(path.pathRef);
      let verb = 0;
      while ((verb = iter.next(p)) !== 6) {
        switch (verb) {
          case 0:
            {
              _engine['DomCanvasRenderingContext2DExtension|moveTo'](ctx, dart.notNull(p[$_get](0)) + dart.notNull(offsetX), dart.notNull(p[$_get](1)) + dart.notNull(offsetY));
              break;
            }
          case 1:
            {
              _engine['DomCanvasRenderingContext2DExtension|lineTo'](ctx, dart.notNull(p[$_get](2)) + dart.notNull(offsetX), dart.notNull(p[$_get](3)) + dart.notNull(offsetY));
              break;
            }
          case 4:
            {
              _engine['DomCanvasRenderingContext2DExtension|bezierCurveTo'](ctx, dart.notNull(p[$_get](2)) + dart.notNull(offsetX), dart.notNull(p[$_get](3)) + dart.notNull(offsetY), dart.notNull(p[$_get](4)) + dart.notNull(offsetX), dart.notNull(p[$_get](5)) + dart.notNull(offsetY), dart.notNull(p[$_get](6)) + dart.notNull(offsetX), dart.notNull(p[$_get](7)) + dart.notNull(offsetY));
              break;
            }
          case 2:
            {
              _engine['DomCanvasRenderingContext2DExtension|quadraticCurveTo'](ctx, dart.notNull(p[$_get](2)) + dart.notNull(offsetX), dart.notNull(p[$_get](3)) + dart.notNull(offsetY), dart.notNull(p[$_get](4)) + dart.notNull(offsetX), dart.notNull(p[$_get](5)) + dart.notNull(offsetY));
              break;
            }
          case 3:
            {
              let w = iter.conicWeight;
              let conic = new _engine.Conic.new(p[$_get](0), p[$_get](1), p[$_get](2), p[$_get](3), p[$_get](4), p[$_get](5), w);
              let points = conic.toQuads();
              let len = points[$length];
              for (let i = 1; i < dart.notNull(len); i = i + 2) {
                let p1x = points[$_get](i).dx;
                let p1y = points[$_get](i).dy;
                let p2x = points[$_get](i + 1).dx;
                let p2y = points[$_get](i + 1).dy;
                _engine['DomCanvasRenderingContext2DExtension|quadraticCurveTo'](ctx, dart.notNull(p1x) + dart.notNull(offsetX), dart.notNull(p1y) + dart.notNull(offsetY), dart.notNull(p2x) + dart.notNull(offsetX), dart.notNull(p2y) + dart.notNull(offsetY));
              }
              break;
            }
          case 5:
            {
              ctx.closePath();
              break;
            }
          default:
            {
              dart.throw(new core.UnimplementedError.new("Unknown path verb " + dart.str(verb)));
            }
        }
      }
    }
    drawRRect(roundRect, style) {
      if (roundRect == null) dart.nullFailed(I[229], 685, 27, "roundRect");
      let shaderBounds = this.contextHandle[_shaderBounds];
      new _engine.RRectToCanvasRenderer.new(this.context).render(shaderBounds == null ? roundRect : roundRect.shift(new ui.Offset.new(-dart.notNull(shaderBounds.left), -dart.notNull(shaderBounds.top))));
      this.contextHandle.paint(style);
    }
    drawDRRect(outer, inner, style) {
      if (outer == null) dart.nullFailed(I[229], 696, 28, "outer");
      if (inner == null) dart.nullFailed(I[229], 696, 44, "inner");
      let renderer = new _engine.RRectToCanvasRenderer.new(this.context);
      let shaderBounds = this.contextHandle[_shaderBounds];
      if (shaderBounds == null) {
        renderer.render(outer);
        renderer.render(inner, {startNewPath: false, reverse: true});
      } else {
        let shift = new ui.Offset.new(-dart.notNull(shaderBounds.left), -dart.notNull(shaderBounds.top));
        renderer.render(outer.shift(shift));
        renderer.render(inner.shift(shift), {startNewPath: false, reverse: true});
      }
      this.contextHandle.paint(style);
    }
    drawOval(rect, style) {
      if (rect == null) dart.nullFailed(I[229], 711, 25, "rect");
      this.context.beginPath();
      let shaderBounds = this.contextHandle[_shaderBounds];
      let cx = shaderBounds == null ? rect.center.dx : dart.notNull(rect.center.dx) - dart.notNull(shaderBounds.left);
      let cy = shaderBounds == null ? rect.center.dy : dart.notNull(rect.center.dy) - dart.notNull(shaderBounds.top);
      _engine.drawEllipse(this.context, cx, cy, dart.notNull(rect.width) / 2, dart.notNull(rect.height) / 2, 0.0, 0.0, 2.0 * 3.141592653589793, false);
      this.contextHandle.paint(style);
    }
    drawCircle(c, radius, style) {
      if (c == null) dart.nullFailed(I[229], 724, 29, "c");
      if (radius == null) dart.nullFailed(I[229], 724, 39, "radius");
      this.context.beginPath();
      let shaderBounds = this.contextHandle[_shaderBounds];
      let cx = shaderBounds == null ? c.dx : dart.notNull(c.dx) - dart.notNull(shaderBounds.left);
      let cy = shaderBounds == null ? c.dy : dart.notNull(c.dy) - dart.notNull(shaderBounds.top);
      _engine.drawEllipse(this.context, cx, cy, radius, radius, 0.0, 0.0, 2.0 * 3.141592653589793, false);
      this.contextHandle.paint(style);
    }
    drawPath(path, style) {
      if (path == null) dart.nullFailed(I[229], 734, 25, "path");
      let shaderBounds = this.contextHandle[_shaderBounds];
      if (shaderBounds == null) {
        this[_runPath](this.context, T$9.SurfacePath()[_as](path));
      } else {
        this[_runPathWithOffset](this.context, T$9.SurfacePath()[_as](path), -dart.notNull(shaderBounds.left), -dart.notNull(shaderBounds.top));
      }
      this.contextHandle.paintPath(style, path.fillType);
    }
    drawImage(element, p) {
      if (element == null) dart.nullFailed(I[229], 745, 38, "element");
      if (p == null) dart.nullFailed(I[229], 745, 57, "p");
      _engine['DomCanvasRenderingContext2DExtension|drawImage'](this.context, element, p.dx, p.dy);
    }
    drawShadow(path, color, elevation, transparentOccluder) {
      if (path == null) dart.nullFailed(I[229], 750, 27, "path");
      if (color == null) dart.nullFailed(I[229], 750, 42, "color");
      if (elevation == null) dart.nullFailed(I[229], 750, 56, "elevation");
      if (transparentOccluder == null) dart.nullFailed(I[229], 751, 12, "transparentOccluder");
      let shadow = _engine.computeShadow(path.getBounds(), elevation);
      if (shadow != null) {
        let shadowColor = _engine.toShadowColor(color);
        let opacity = dart.notNull(shadowColor.alpha) / 255;
        let solidColor = _engine.colorComponentsToCssString(shadowColor.red, shadowColor.green, shadowColor.blue, 255);
        this.context.save();
        _engine['DomCanvasRenderingContext2DExtension|set#globalAlpha'](this.context, opacity);
        if (dart.test(transparentOccluder) && ui_web.browser.browserEngine != ui_web.BrowserEngine.webkit) {
          _engine['DomCanvasRenderingContext2DExtension|translate'](this.context, shadow.offset.dx, shadow.offset.dy);
          _engine['DomCanvasRenderingContext2DExtension|set#filter'](this.context, _engine.maskFilterToCanvasFilter(new ui.MaskFilter.blur(ui.BlurStyle.normal, shadow.blurWidth)));
          _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'](this.context, "");
          _engine['DomCanvasRenderingContext2DExtension|set#fillStyle'](this.context, solidColor);
        } else {
          _engine['DomCanvasRenderingContext2DExtension|set#filter'](this.context, "none");
          _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'](this.context, "");
          _engine['DomCanvasRenderingContext2DExtension|set#fillStyle'](this.context, solidColor);
          _engine['DomCanvasRenderingContext2DExtension|set#shadowBlur'](this.context, shadow.blurWidth);
          _engine['DomCanvasRenderingContext2DExtension|set#shadowColor'](this.context, solidColor);
          _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetX'](this.context, shadow.offset.dx);
          _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetY'](this.context, shadow.offset.dy);
        }
        this[_runPath](this.context, T$9.SurfacePath()[_as](path));
        _engine['DomCanvasRenderingContext2DExtension|fill'](this.context);
        this.context.restore();
      }
    }
    dispose() {
      let t$36502;
      if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit && this[_canvas$] != null) {
        _engine['DomCanvasElementExtension|set#width'](dart.nullCheck(this[_canvas$]), (t$36502 = 0.0, _engine['DomCanvasElementExtension|set#height'](dart.nullCheck(this[_canvas$]), t$36502), t$36502));
      }
      this[_clearActiveCanvasList]();
    }
    [_clearActiveCanvasList]() {
      let t$36502;
      if (this[_activeCanvasList] != null) {
        for (let c of dart.nullCheck(this[_activeCanvasList])) {
          if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
            _engine['DomCanvasElementExtension|set#width'](c, (t$36502 = 0.0, _engine['DomCanvasElementExtension|set#height'](c, t$36502), t$36502));
          }
          c.remove();
        }
      }
      this[_activeCanvasList] = null;
    }
  };
  (_engine.CanvasPool.new = function(_widthInBitmapPixels, _heightInBitmapPixels, _density) {
    if (_widthInBitmapPixels == null) dart.nullFailed(I[229], 28, 19, "_widthInBitmapPixels");
    if (_heightInBitmapPixels == null) dart.nullFailed(I[229], 28, 46, "_heightInBitmapPixels");
    if (_density == null) dart.nullFailed(I[229], 29, 12, "_density");
    this[_context] = null;
    this[_contextHandle] = null;
    this[_activeCanvasList] = null;
    this[_reusablePool] = null;
    this[_canvas$] = null;
    this[_rootElement] = null;
    this[_saveContextCount] = 0;
    this[_widthInBitmapPixels$] = _widthInBitmapPixels;
    this[_heightInBitmapPixels$] = _heightInBitmapPixels;
    this[_density$] = _density;
    dart.global.Object.getPrototypeOf(_engine.CanvasPool).new.call(this);
    ;
  }).prototype = _engine.CanvasPool.prototype;
  dart.addRtiResources(_engine.CanvasPool, ["_engine|CanvasPool"]);
  dart.setMethodSignature(_engine.CanvasPool, () => dart.global.Object.setPrototypeOf({
    mount: T$9.DomHTMLElementTovoid(),
    closeCanvas: T$.VoidTovoid(),
    [_createCanvas]: T$.VoidTovoid(),
    [_allocCanvas]: T$9.intAndintToDomCanvasElementN(),
    [_replaySingleSaveEntry]: T$9.intAndMatrix4AndMatrix4__Toint(),
    [_replayClipStack]: T$.VoidTovoid(),
    reuse: T$.VoidTovoid(),
    endOfPaint: T$.VoidTovoid(),
    [_restoreContextSave]: T$.VoidTovoid(),
    [_initializeViewport]: T$1.boolTovoid(),
    [_resetTransform]: T$.VoidTovoid(),
    toDataUrl: T$.VoidToString(),
    [_clipRect$]: T$9.DomCanvasRenderingContext2DAndRectTovoid(),
    [_clipRRect$]: T$9.DomCanvasRenderingContext2DAndRRectTovoid(),
    drawColor: T$9.ColorAndBlendModeTovoid(),
    fill: T$.VoidTovoid(),
    strokeLine: T$9.OffsetAndOffsetTovoid(),
    drawPoints: T$9.PointModeAndFloat32ListAnddoubleTovoid(),
    [_runPath]: T$9.DomCanvasRenderingContext2DAndSurfacePathTovoid(),
    drawRect: T$9.RectAndPaintingStyleNTovoid(),
    [_runPathWithOffset]: T$9.DomCanvasRenderingContext2DAndSurfacePathAnddouble__Tovoid(),
    drawRRect: T$9.RRectAndPaintingStyleNTovoid(),
    drawDRRect: T$9.RRectAndRRectAndPaintingStyleNTovoid(),
    drawOval: T$9.RectAndPaintingStyleNTovoid(),
    drawCircle: T$9.OffsetAnddoubleAndPaintingStyleNTovoid(),
    drawPath: T$9.PathAndPaintingStyleNTovoid(),
    drawImage: T$9.DomHTMLImageElementAndOffsetTovoid(),
    drawShadow: T$9.PathAndColorAnddouble__Tovoid(),
    dispose: T$.VoidTovoid(),
    [_clearActiveCanvasList]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CanvasPool))));
  dart.setGetterSignature(_engine.CanvasPool, () => dart.global.Object.setPrototypeOf({
    context: T$9.DomCanvasRenderingContext2D(),
    contextHandle: T$9.ContextStateHandle(),
    hasCanvas: T$.bool(),
    dpi: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CanvasPool))));
  dart.setSetterSignature(_engine.CanvasPool, () => dart.global.Object.setPrototypeOf({initialTransform: T$8.Offset()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CanvasPool))));
  dart.setLibraryUri(_engine.CanvasPool, I[220]);
  dart.setFieldSignature(_engine.CanvasPool, () => dart.global.Object.setPrototypeOf({
    [_context]: {type: T$9.DomCanvasRenderingContext2DN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_contextHandle]: {type: T$9.ContextStateHandleN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_widthInBitmapPixels$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_heightInBitmapPixels$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_activeCanvasList]: {type: T$9.ListNOfDomCanvasElement(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_reusablePool]: {type: T$9.ListNOfDomCanvasElement(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_canvas$]: {type: T$9.DomCanvasElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_rootElement]: {type: T$9.DomHTMLElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_saveContextCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_density$]: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CanvasPool))));
  dart.setStaticFieldSignature(_engine.CanvasPool, () => ['_runBuffer']);
  dart.defineLazy(_engine.CanvasPool, {
    /*_engine.CanvasPool._runBuffer*/get _runBuffer() {
      return _native_typed_data.NativeFloat32List.new(8);
    }
  }, false);
  var context$ = dart.privateName(_engine, "ContextStateHandle.context");
  var density$ = dart.privateName(_engine, "ContextStateHandle.density");
  var _currentBlendMode = dart.privateName(_engine, "_currentBlendMode");
  var _currentStrokeCap = dart.privateName(_engine, "_currentStrokeCap");
  var _currentStrokeJoin = dart.privateName(_engine, "_currentStrokeJoin");
  var _currentFillStyle = dart.privateName(_engine, "_currentFillStyle");
  var _currentStrokeStyle = dart.privateName(_engine, "_currentStrokeStyle");
  var _currentLineWidth = dart.privateName(_engine, "_currentLineWidth");
  var _currentFilter = dart.privateName(_engine, "_currentFilter");
  var _lastUsedPaint = dart.privateName(_engine, "_lastUsedPaint");
  var _debugIsPaintSetUp = dart.privateName(_engine, "_debugIsPaintSetUp");
  var _canvasPool$ = dart.privateName(_engine, "_canvasPool");
  var _renderMaskFilterForWebkit = dart.privateName(_engine, "_renderMaskFilterForWebkit");
  _engine.ContextStateHandle = class ContextStateHandle extends core.Object {
    get context() {
      return this[context$];
    }
    set context(value) {
      super.context = value;
    }
    get density() {
      return this[density$];
    }
    set density(value) {
      super.density = value;
    }
    static ['_#new#tearOff'](_canvasPool, context, density) {
      if (_canvasPool == null) dart.nullFailed(I[229], 849, 27, "_canvasPool");
      if (context == null) dart.nullFailed(I[229], 849, 45, "context");
      if (density == null) dart.nullFailed(I[229], 849, 59, "density");
      return new _engine.ContextStateHandle.new(_canvasPool, context, density);
    }
    set blendMode(blendMode) {
      let t$36502;
      if (blendMode != this[_currentBlendMode]) {
        this[_currentBlendMode] = blendMode;
        _engine['DomCanvasRenderingContext2DExtension|set#globalCompositeOperation'](this.context, (t$36502 = _engine.blendModeToCssMixBlendMode(blendMode), t$36502 == null ? "source-over" : t$36502));
      }
    }
    set strokeCap(strokeCap) {
      strokeCap == null ? strokeCap = ui.StrokeCap.butt : null;
      if (strokeCap != this[_currentStrokeCap]) {
        this[_currentStrokeCap] = strokeCap;
        _engine['DomCanvasRenderingContext2DExtension|set#lineCap'](this.context, dart.nullCheck(_engine.stringForStrokeCap(strokeCap)));
      }
    }
    set lineWidth(lineWidth) {
      if (lineWidth == null) dart.nullFailed(I[229], 884, 24, "lineWidth");
      if (lineWidth != this[_currentLineWidth]) {
        this[_currentLineWidth] = lineWidth;
        _engine['DomCanvasRenderingContext2DExtension|set#lineWidth'](this.context, lineWidth);
      }
    }
    set strokeJoin(strokeJoin) {
      strokeJoin == null ? strokeJoin = ui.StrokeJoin.miter : null;
      if (strokeJoin != this[_currentStrokeJoin]) {
        this[_currentStrokeJoin] = strokeJoin;
        _engine['DomCanvasRenderingContext2DExtension|set#lineJoin'](this.context, _engine.stringForStrokeJoin(strokeJoin));
      }
    }
    set fillStyle(colorOrGradient) {
      if (!core.identical(colorOrGradient, this[_currentFillStyle])) {
        this[_currentFillStyle] = colorOrGradient;
        _engine['DomCanvasRenderingContext2DExtension|set#fillStyle'](this.context, colorOrGradient);
      }
    }
    set strokeStyle(colorOrGradient) {
      if (!core.identical(colorOrGradient, this[_currentStrokeStyle])) {
        this[_currentStrokeStyle] = colorOrGradient;
        _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'](this.context, colorOrGradient);
      }
    }
    get [_renderMaskFilterForWebkit]() {
      return ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit || dart.test(_engine.ContextStateHandle.debugEmulateWebKitMaskFilter);
    }
    setUpPaint(paint, shaderBounds) {
      let t$36502, t$36503, t$36502$;
      if (paint == null) dart.nullFailed(I[229], 943, 36, "paint");
      if (!dart.test(dart.fn(() => {
        let wasPaintSetUp = this[_debugIsPaintSetUp];
        this[_debugIsPaintSetUp] = true;
        return !dart.test(wasPaintSetUp);
      }, T$.VoidTobool())())) dart.assertFailed(null, I[229], 944, 12, "() {\n      final bool wasPaintSetUp = _debugIsPaintSetUp;\n      _debugIsPaintSetUp = true;\n      // When setting up paint, the previous paint must be torn down.\n      return !wasPaintSetUp;\n    }()");
      this[_lastUsedPaint] = paint;
      this.lineWidth = (t$36502 = paint.strokeWidth, t$36502 == null ? 1.0 : t$36502);
      this.blendMode = paint.blendMode;
      this.strokeCap = paint.strokeCap;
      this.strokeJoin = paint.strokeJoin;
      if (paint.shader != null) {
        if (T$9.EngineGradient()[_is](paint.shader)) {
          let engineShader = T$9.EngineGradient()[_as](dart.nullCheck(paint.shader));
          let paintStyle = engineShader.createPaintStyle(this[_canvasPool$].context, shaderBounds, this.density);
          this.fillStyle = paintStyle;
          this.strokeStyle = paintStyle;
          this[_shaderBounds] = shaderBounds;
          _engine['DomCanvasRenderingContext2DExtension|translate'](this.context, dart.nullCheck(shaderBounds).left, shaderBounds.top);
        } else if (T$9.EngineImageShader()[_is](paint.shader)) {
          let imageShader = T$9.EngineImageShader()[_as](dart.nullCheck(paint.shader));
          let paintStyle = imageShader.createPaintStyle(this[_canvasPool$].context, shaderBounds, this.density);
          this.fillStyle = paintStyle;
          this.strokeStyle = paintStyle;
          if (dart.test(imageShader.requiresTileOffset)) {
            this[_shaderBounds] = shaderBounds;
            _engine['DomCanvasRenderingContext2DExtension|translate'](this.context, dart.nullCheck(shaderBounds).left, shaderBounds.top);
          }
        }
      } else {
        let colorString = _engine.colorValueToCssString(paint.color);
        this.fillStyle = colorString;
        this.strokeStyle = colorString;
      }
      let maskFilter = paint.maskFilter;
      if (!dart.test(this[_renderMaskFilterForWebkit])) {
        if (!dart.equals(this[_currentFilter], maskFilter)) {
          this[_currentFilter] = maskFilter;
          _engine['DomCanvasRenderingContext2DExtension|set#filter'](this.context, _engine.maskFilterToCanvasFilter(maskFilter));
        }
      } else {
        if (maskFilter != null) {
          this.context.save();
          _engine['DomCanvasRenderingContext2DExtension|set#shadowBlur'](this.context, _engine.convertSigmaToRadius(maskFilter.webOnlySigma));
          _engine['DomCanvasRenderingContext2DExtension|set#shadowColor'](this.context, _engine['CssColor|toCssString'](new ui.Color.new(paint.color).withAlpha(255)));
          _engine['DomCanvasRenderingContext2DExtension|translate'](this.context, -50000, 0);
          let tempVector = _native_typed_data.NativeFloat32List.new(2);
          tempVector[$_set](0, 50000 * dart.notNull(_engine.EngineFlutterDisplay.instance.devicePixelRatio));
          this[_canvasPool$].currentTransform.transform2(tempVector);
          let shadowOffsetX = tempVector[$_get](0);
          let shadowOffsetY = tempVector[$_get](1);
          tempVector[$_set](0, (t$36502$ = 1, t$36503 = 0.0, tempVector[$_set](t$36502$, t$36503), t$36503));
          this[_canvasPool$].currentTransform.transform2(tempVector);
          _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetX'](this.context, dart.notNull(shadowOffsetX) - dart.notNull(tempVector[$_get](0)));
          _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetY'](this.context, dart.notNull(shadowOffsetY) - dart.notNull(tempVector[$_get](1)));
        }
      }
    }
    tearDownPaint() {
      let t$36502;
      if (!dart.test(dart.fn(() => {
        let wasPaintSetUp = this[_debugIsPaintSetUp];
        this[_debugIsPaintSetUp] = false;
        return wasPaintSetUp;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[229], 1042, 12, "() {\n      final bool wasPaintSetUp = _debugIsPaintSetUp;\n      _debugIsPaintSetUp = false;\n      // When tearing down paint, we expect that it was set up before.\n      return wasPaintSetUp;\n    }()");
      let maskFilter = (t$36502 = this[_lastUsedPaint], t$36502 == null ? null : t$36502.maskFilter);
      if (maskFilter != null && dart.test(this[_renderMaskFilterForWebkit])) {
        this.context.restore();
      }
      if (this[_shaderBounds] != null) {
        _engine['DomCanvasRenderingContext2DExtension|translate'](this.context, -dart.notNull(dart.nullCheck(this[_shaderBounds]).left), -dart.notNull(dart.nullCheck(this[_shaderBounds]).top));
        this[_shaderBounds] = null;
      }
    }
    paint(style) {
      if (style == ui.PaintingStyle.stroke) {
        this.context.stroke();
      } else {
        _engine['DomCanvasRenderingContext2DExtension|fill'](this.context);
      }
    }
    paintPath(style, pathFillType) {
      if (pathFillType == null) dart.nullFailed(I[229], 1072, 59, "pathFillType");
      if (style == ui.PaintingStyle.stroke) {
        this.context.stroke();
      } else {
        if (pathFillType == ui.PathFillType.nonZero) {
          _engine['DomCanvasRenderingContext2DExtension|fill'](this.context);
        } else {
          _engine['DomCanvasRenderingContext2DExtension|fill'](this.context, "evenodd");
        }
      }
    }
    reset() {
      _engine['DomCanvasRenderingContext2DExtension|set#fillStyle'](this.context, "");
      this[_currentFillStyle] = _engine['DomCanvasRenderingContext2DExtension|get#fillStyle'](this.context);
      _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'](this.context, "");
      this[_currentStrokeStyle] = _engine['DomCanvasRenderingContext2DExtension|get#strokeStyle'](this.context);
      _engine['DomCanvasRenderingContext2DExtension|set#shadowBlur'](this.context, 0);
      _engine['DomCanvasRenderingContext2DExtension|set#shadowColor'](this.context, "none");
      _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetX'](this.context, 0);
      _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetY'](this.context, 0);
      _engine['DomCanvasRenderingContext2DExtension|set#globalCompositeOperation'](this.context, "source-over");
      this[_currentBlendMode] = ui.BlendMode.srcOver;
      _engine['DomCanvasRenderingContext2DExtension|set#lineWidth'](this.context, 1.0);
      this[_currentLineWidth] = 1.0;
      _engine['DomCanvasRenderingContext2DExtension|set#lineCap'](this.context, "butt");
      this[_currentStrokeCap] = ui.StrokeCap.butt;
      _engine['DomCanvasRenderingContext2DExtension|set#lineJoin'](this.context, "miter");
      this[_currentStrokeJoin] = ui.StrokeJoin.miter;
      this[_shaderBounds] = null;
    }
  };
  (_engine.ContextStateHandle.new = function(_canvasPool, context, density) {
    if (_canvasPool == null) dart.nullFailed(I[229], 849, 27, "_canvasPool");
    if (context == null) dart.nullFailed(I[229], 849, 45, "context");
    if (density == null) dart.nullFailed(I[229], 849, 59, "density");
    this[_currentBlendMode] = ui.BlendMode.srcOver;
    this[_currentStrokeCap] = ui.StrokeCap.butt;
    this[_currentStrokeJoin] = ui.StrokeJoin.miter;
    this[_currentFillStyle] = null;
    this[_currentStrokeStyle] = null;
    this[_currentLineWidth] = 1.0;
    this[_currentFilter] = null;
    this[_lastUsedPaint] = null;
    this[_shaderBounds] = null;
    this[_debugIsPaintSetUp] = false;
    this[_canvasPool$] = _canvasPool;
    this[context$] = context;
    this[density$] = density;
    ;
  }).prototype = _engine.ContextStateHandle.prototype;
  dart.addRtiResources(_engine.ContextStateHandle, ["_engine|ContextStateHandle"]);
  dart.setMethodSignature(_engine.ContextStateHandle, () => dart.global.Object.setPrototypeOf({
    setUpPaint: T$9.SurfacePaintDataAndRectNTovoid(),
    tearDownPaint: T$.VoidTovoid(),
    paint: T$9.PaintingStyleNTovoid(),
    paintPath: T$9.PaintingStyleNAndPathFillTypeTovoid(),
    reset: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ContextStateHandle))));
  dart.setGetterSignature(_engine.ContextStateHandle, () => dart.global.Object.setPrototypeOf({[_renderMaskFilterForWebkit]: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ContextStateHandle))));
  dart.setSetterSignature(_engine.ContextStateHandle, () => dart.global.Object.setPrototypeOf({
    blendMode: T$9.BlendModeN(),
    strokeCap: T$9.StrokeCapN(),
    lineWidth: T$.double(),
    strokeJoin: T$9.StrokeJoinN(),
    fillStyle: T$.ObjectN(),
    strokeStyle: T$.ObjectN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.ContextStateHandle))));
  dart.setLibraryUri(_engine.ContextStateHandle, I[220]);
  dart.setFieldSignature(_engine.ContextStateHandle, () => dart.global.Object.setPrototypeOf({
    context: {type: T$9.DomCanvasRenderingContext2D(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_canvasPool$]: {type: T$9.CanvasPool(), isConst: false, isFinal: true, libraryUri: I[220]},
    density: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_currentBlendMode]: {type: T$9.BlendModeN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_currentStrokeCap]: {type: T$9.StrokeCapN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_currentStrokeJoin]: {type: T$9.StrokeJoinN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_currentFillStyle]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentStrokeStyle]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentLineWidth]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentFilter]: {type: T$9.MaskFilterN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_lastUsedPaint]: {type: T$9.SurfacePaintDataN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_shaderBounds]: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_debugIsPaintSetUp]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ContextStateHandle))));
  dart.setStaticFieldSignature(_engine.ContextStateHandle, () => ['debugEmulateWebKitMaskFilter']);
  dart.defineLazy(_engine.ContextStateHandle, {
    /*_engine.ContextStateHandle.debugEmulateWebKitMaskFilter*/get debugEmulateWebKitMaskFilter() {
      return false;
    },
    set debugEmulateWebKitMaskFilter(value) {
      if (value == null) dart.nullFailed(I[229], 936, 15, "debugEmulateWebKitMaskFilter");
    }
  }, false);
  var skCanvas$ = dart.privateName(_engine, "CkCanvas.skCanvas");
  _engine.CkCanvas = class CkCanvas extends core.Object {
    get skCanvas() {
      return this[skCanvas$];
    }
    set skCanvas(value) {
      super.skCanvas = value;
    }
    static ['_#new#tearOff'](skCanvas) {
      if (skCanvas == null) dart.nullFailed(I[230], 18, 17, "skCanvas");
      return new _engine.CkCanvas.new(skCanvas);
    }
    get saveCount() {
      return _engine['SkCanvasExtension|getSaveCount'](this.skCanvas)[$toInt]();
    }
    clear(color) {
      if (color == null) dart.nullFailed(I[230], 29, 23, "color");
      _engine['SkCanvasExtension|clear'](this.skCanvas, _engine.toSharedSkColor1(color));
    }
    clipPath(path, doAntiAlias) {
      if (path == null) dart.nullFailed(I[230], 33, 24, "path");
      if (doAntiAlias == null) dart.nullFailed(I[230], 33, 35, "doAntiAlias");
      _engine['SkCanvasExtension|clipPath'](this.skCanvas, path.skiaObject, _engine._clipOpIntersect, doAntiAlias);
    }
    clipRRect(rrect, doAntiAlias) {
      if (rrect == null) dart.nullFailed(I[230], 41, 27, "rrect");
      if (doAntiAlias == null) dart.nullFailed(I[230], 41, 39, "doAntiAlias");
      _engine['SkCanvasExtension|clipRRect'](this.skCanvas, _engine.toSkRRect(rrect), _engine._clipOpIntersect, doAntiAlias);
    }
    clipRect(rect, clipOp, doAntiAlias) {
      if (rect == null) dart.nullFailed(I[230], 49, 25, "rect");
      if (clipOp == null) dart.nullFailed(I[230], 49, 41, "clipOp");
      if (doAntiAlias == null) dart.nullFailed(I[230], 49, 54, "doAntiAlias");
      _engine['SkCanvasExtension|clipRect'](this.skCanvas, _engine.toSkRect(rect), _engine.toSkClipOp(clipOp), doAntiAlias);
    }
    getDeviceClipBounds() {
      return _engine.rectFromSkIRect(_engine['SkCanvasExtension|getDeviceClipBounds'](this.skCanvas));
    }
    drawArc(oval, startAngle, sweepAngle, useCenter, paint) {
      if (oval == null) dart.nullFailed(I[230], 62, 13, "oval");
      if (startAngle == null) dart.nullFailed(I[230], 63, 12, "startAngle");
      if (sweepAngle == null) dart.nullFailed(I[230], 64, 12, "sweepAngle");
      if (useCenter == null) dart.nullFailed(I[230], 65, 10, "useCenter");
      if (paint == null) dart.nullFailed(I[230], 66, 13, "paint");
      _engine['SkCanvasExtension|drawArc'](this.skCanvas, _engine.toSkRect(oval), dart.notNull(startAngle) * 57.29577951308232, dart.notNull(sweepAngle) * 57.29577951308232, useCenter, paint.skiaObject);
    }
    drawAtlasRaw(paint, atlas, rstTransforms, rects, colors, blendMode) {
      if (paint == null) dart.nullFailed(I[230], 80, 13, "paint");
      if (atlas == null) dart.nullFailed(I[230], 81, 13, "atlas");
      if (rstTransforms == null) dart.nullFailed(I[230], 82, 17, "rstTransforms");
      if (rects == null) dart.nullFailed(I[230], 83, 17, "rects");
      if (blendMode == null) dart.nullFailed(I[230], 85, 18, "blendMode");
      _engine['SkCanvasExtension|drawAtlas'](this.skCanvas, atlas.skImage, rects, rstTransforms, paint.skiaObject, _engine.toSkBlendMode(blendMode), colors);
    }
    drawCircle(c, radius, paint) {
      if (c == null) dart.nullFailed(I[230], 97, 29, "c");
      if (radius == null) dart.nullFailed(I[230], 97, 39, "radius");
      if (paint == null) dart.nullFailed(I[230], 97, 55, "paint");
      _engine['SkCanvasExtension|drawCircle'](this.skCanvas, c.dx, c.dy, radius, paint.skiaObject);
    }
    drawColor(color, blendMode) {
      if (color == null) dart.nullFailed(I[230], 106, 27, "color");
      if (blendMode == null) dart.nullFailed(I[230], 106, 47, "blendMode");
      _engine['SkCanvasExtension|drawColorInt'](this.skCanvas, color.value[$toDouble](), _engine.toSkBlendMode(blendMode));
    }
    drawDRRect(outer, inner, paint) {
      if (outer == null) dart.nullFailed(I[230], 113, 28, "outer");
      if (inner == null) dart.nullFailed(I[230], 113, 44, "inner");
      if (paint == null) dart.nullFailed(I[230], 113, 59, "paint");
      _engine['SkCanvasExtension|drawDRRect'](this.skCanvas, _engine.toSkRRect(outer), _engine.toSkRRect(inner), paint.skiaObject);
    }
    drawImage(image, offset, paint) {
      if (image == null) dart.nullFailed(I[230], 121, 26, "image");
      if (offset == null) dart.nullFailed(I[230], 121, 43, "offset");
      if (paint == null) dart.nullFailed(I[230], 121, 59, "paint");
      let filterQuality = paint.filterQuality;
      if (filterQuality == ui.FilterQuality.high) {
        _engine['SkCanvasExtension|drawImageCubic'](this.skCanvas, image.skImage, offset.dx, offset.dy, 0.3333333333333333, 0.3333333333333333, paint.skiaObject);
      } else {
        _engine['SkCanvasExtension|drawImageOptions'](this.skCanvas, image.skImage, offset.dx, offset.dy, _engine.toSkFilterMode(filterQuality), _engine.toSkMipmapMode(filterQuality), paint.skiaObject);
      }
    }
    drawImageRect(image, src, dst, paint) {
      if (image == null) dart.nullFailed(I[230], 144, 30, "image");
      if (src == null) dart.nullFailed(I[230], 144, 45, "src");
      if (dst == null) dart.nullFailed(I[230], 144, 58, "dst");
      if (paint == null) dart.nullFailed(I[230], 144, 71, "paint");
      let filterQuality = paint.filterQuality;
      if (filterQuality == ui.FilterQuality.high) {
        _engine['SkCanvasExtension|drawImageRectCubic'](this.skCanvas, image.skImage, _engine.toSkRect(src), _engine.toSkRect(dst), 0.3333333333333333, 0.3333333333333333, paint.skiaObject);
      } else {
        _engine['SkCanvasExtension|drawImageRectOptions'](this.skCanvas, image.skImage, _engine.toSkRect(src), _engine.toSkRect(dst), _engine.toSkFilterMode(filterQuality), _engine.toSkMipmapMode(filterQuality), paint.skiaObject);
      }
    }
    drawImageNine(image, center, dst, paint) {
      if (image == null) dart.nullFailed(I[230], 168, 15, "image");
      if (center == null) dart.nullFailed(I[230], 168, 30, "center");
      if (dst == null) dart.nullFailed(I[230], 168, 46, "dst");
      if (paint == null) dart.nullFailed(I[230], 168, 59, "paint");
      _engine['SkCanvasExtension|drawImageNine'](this.skCanvas, image.skImage, _engine.toSkRect(center), _engine.toSkRect(dst), _engine.toSkFilterMode(paint.filterQuality), paint.skiaObject);
    }
    drawLine(p1, p2, paint) {
      if (p1 == null) dart.nullFailed(I[230], 178, 27, "p1");
      if (p2 == null) dart.nullFailed(I[230], 178, 41, "p2");
      if (paint == null) dart.nullFailed(I[230], 178, 53, "paint");
      _engine['SkCanvasExtension|drawLine'](this.skCanvas, p1.dx, p1.dy, p2.dx, p2.dy, paint.skiaObject);
    }
    drawOval(rect, paint) {
      if (rect == null) dart.nullFailed(I[230], 188, 25, "rect");
      if (paint == null) dart.nullFailed(I[230], 188, 39, "paint");
      _engine['SkCanvasExtension|drawOval'](this.skCanvas, _engine.toSkRect(rect), paint.skiaObject);
    }
    drawPaint(paint) {
      if (paint == null) dart.nullFailed(I[230], 195, 26, "paint");
      this.skCanvas.drawPaint(paint.skiaObject);
    }
    drawParagraph(paragraph, offset) {
      if (paragraph == null) dart.nullFailed(I[230], 199, 34, "paragraph");
      if (offset == null) dart.nullFailed(I[230], 199, 55, "offset");
      _engine['SkCanvasExtension|drawParagraph'](this.skCanvas, paragraph.skiaObject, offset.dx, offset.dy);
    }
    drawPath(path, paint) {
      if (path == null) dart.nullFailed(I[230], 207, 24, "path");
      if (paint == null) dart.nullFailed(I[230], 207, 38, "paint");
      this.skCanvas.drawPath(path.skiaObject, paint.skiaObject);
    }
    drawPicture(picture) {
      if (picture == null) dart.nullFailed(I[230], 211, 30, "picture");
      if (!dart.test(picture.debugCheckNotDisposed("Failed to draw picture."))) dart.assertFailed(null, I[230], 212, 12, "picture.debugCheckNotDisposed('Failed to draw picture.')");
      this.skCanvas.drawPicture(picture.skiaObject);
    }
    drawPoints(paint, pointMode, points) {
      if (paint == null) dart.nullFailed(I[230], 216, 27, "paint");
      if (pointMode == null) dart.nullFailed(I[230], 216, 47, "pointMode");
      if (points == null) dart.nullFailed(I[230], 216, 70, "points");
      _engine['SkCanvasExtension|drawPoints'](this.skCanvas, _engine.toSkPointMode(pointMode), points, paint.skiaObject);
    }
    drawRRect(rrect, paint) {
      if (rrect == null) dart.nullFailed(I[230], 224, 27, "rrect");
      if (paint == null) dart.nullFailed(I[230], 224, 42, "paint");
      _engine['SkCanvasExtension|drawRRect'](this.skCanvas, _engine.toSkRRect(rrect), paint.skiaObject);
    }
    drawRect(rect, paint) {
      if (rect == null) dart.nullFailed(I[230], 231, 25, "rect");
      if (paint == null) dart.nullFailed(I[230], 231, 39, "paint");
      _engine['SkCanvasExtension|drawRect'](this.skCanvas, _engine.toSkRect(rect), paint.skiaObject);
    }
    drawShadow(path, color, elevation, transparentOccluder) {
      if (path == null) dart.nullFailed(I[230], 236, 14, "path");
      if (color == null) dart.nullFailed(I[230], 236, 29, "color");
      if (elevation == null) dart.nullFailed(I[230], 236, 43, "elevation");
      if (transparentOccluder == null) dart.nullFailed(I[230], 236, 59, "transparentOccluder");
      _engine.drawSkShadow(this.skCanvas, path, color, elevation, transparentOccluder, _engine.EngineFlutterDisplay.instance.devicePixelRatio);
    }
    drawVertices(vertices, blendMode, paint) {
      if (vertices == null) dart.nullFailed(I[230], 242, 18, "vertices");
      if (blendMode == null) dart.nullFailed(I[230], 242, 41, "blendMode");
      if (paint == null) dart.nullFailed(I[230], 242, 60, "paint");
      this.skCanvas.drawVertices(vertices.skiaObject, _engine.toSkBlendMode(blendMode), paint.skiaObject);
    }
    restore() {
      this.skCanvas.restore();
    }
    restoreToCount(count) {
      if (count == null) dart.nullFailed(I[230], 254, 27, "count");
      _engine['SkCanvasExtension|restoreToCount'](this.skCanvas, count[$toDouble]());
    }
    rotate(radians) {
      if (radians == null) dart.nullFailed(I[230], 258, 22, "radians");
      _engine['SkCanvasExtension|rotate'](this.skCanvas, dart.notNull(radians) * 180.0 / 3.141592653589793, 0.0, 0.0);
    }
    save() {
      return _engine['SkCanvasExtension|save'](this.skCanvas)[$toInt]();
    }
    saveLayer(bounds, paint) {
      let t$36502;
      if (bounds == null) dart.nullFailed(I[230], 266, 26, "bounds");
      _engine['SkCanvasExtension|saveLayer'](this.skCanvas, (t$36502 = paint, t$36502 == null ? null : t$36502.skiaObject), _engine.toSkRect(bounds), null, null);
    }
    saveLayerWithoutBounds(paint) {
      let t$36502;
      _engine['SkCanvasExtension|saveLayer'](this.skCanvas, (t$36502 = paint, t$36502 == null ? null : t$36502.skiaObject), null, null, null);
    }
    saveLayerWithFilter(bounds, filter, paint = null) {
      if (bounds == null) dart.nullFailed(I[230], 279, 36, "bounds");
      if (filter == null) dart.nullFailed(I[230], 279, 59, "filter");
      let convertible = null;
      if (T$9.ColorFilter()[_is](filter)) {
        convertible = dart.nullCheck(_engine.createCkColorFilter(T$9.EngineColorFilter()[_as](filter)));
      } else {
        convertible = T$9.CkManagedSkImageFilterConvertible()[_as](filter);
      }
      convertible.imageFilter(dart.fn(filter => {
        let t$36502;
        if (filter == null) dart.nullFailed(I[230], 287, 44, "filter");
        _engine['SkCanvasExtension|saveLayer'](this.skCanvas, (t$36502 = paint, t$36502 == null ? null : t$36502.skiaObject), _engine.toSkRect(bounds), filter, 0);
      }, T$9.SkImageFilterTovoid()));
    }
    scale(sx, sy) {
      if (sx == null) dart.nullFailed(I[230], 297, 21, "sx");
      if (sy == null) dart.nullFailed(I[230], 297, 32, "sy");
      _engine['SkCanvasExtension|scale'](this.skCanvas, sx, sy);
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[230], 301, 20, "sx");
      if (sy == null) dart.nullFailed(I[230], 301, 31, "sy");
      _engine['SkCanvasExtension|skew'](this.skCanvas, sx, sy);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[230], 305, 30, "matrix4");
      _engine['SkCanvasExtension|concat'](this.skCanvas, _engine.toSkM44FromFloat32(matrix4));
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[230], 309, 25, "dx");
      if (dy == null) dart.nullFailed(I[230], 309, 36, "dy");
      _engine['SkCanvasExtension|translate'](this.skCanvas, dx, dy);
    }
    getLocalToDevice() {
      let list = _engine['SkCanvasExtension|getLocalToDevice'](this.skCanvas);
      let matrix4 = _native_typed_data.NativeFloat32List.new(16);
      for (let r = 0; r < 4; r = r + 1) {
        for (let c = 0; c < 4; c = c + 1) {
          matrix4[$_set](c * 4 + r, T$.num()[_as](list[$_get](r * 4 + c))[$toDouble]());
        }
      }
      return matrix4;
    }
  };
  (_engine.CkCanvas.new = function(skCanvas) {
    if (skCanvas == null) dart.nullFailed(I[230], 18, 17, "skCanvas");
    this[skCanvas$] = skCanvas;
    ;
  }).prototype = _engine.CkCanvas.prototype;
  dart.addRtiResources(_engine.CkCanvas, ["_engine|CkCanvas"]);
  dart.setMethodSignature(_engine.CkCanvas, () => dart.global.Object.setPrototypeOf({
    clear: T$9.ColorTovoid(),
    clipPath: T$9.CkPathAndboolTovoid(),
    clipRRect: T$9.RRectAndboolTovoid(),
    clipRect: T$9.RectAndClipOpAndboolTovoid(),
    getDeviceClipBounds: T$9.VoidToRect$1(),
    drawArc: T$9.RectAnddoubleAnddouble__Tovoid(),
    drawAtlasRaw: T$9.CkPaintAndCkImageAndFloat32List__Tovoid(),
    drawCircle: T$9.OffsetAnddoubleAndCkPaintTovoid(),
    drawColor: T$9.ColorAndBlendModeTovoid(),
    drawDRRect: T$9.RRectAndRRectAndCkPaintTovoid(),
    drawImage: T$9.CkImageAndOffsetAndCkPaintTovoid(),
    drawImageRect: T$9.CkImageAndRectAndRect__Tovoid(),
    drawImageNine: T$9.CkImageAndRectAndRect__Tovoid(),
    drawLine: T$9.OffsetAndOffsetAndCkPaintTovoid(),
    drawOval: T$9.RectAndCkPaintTovoid(),
    drawPaint: T$9.CkPaintTovoid(),
    drawParagraph: T$9.CkParagraphAndOffsetTovoid(),
    drawPath: T$9.CkPathAndCkPaintTovoid(),
    drawPicture: T$9.CkPictureTovoid(),
    drawPoints: T$9.CkPaintAndPointModeAndFloat32ListTovoid(),
    drawRRect: T$9.RRectAndCkPaintTovoid(),
    drawRect: T$9.RectAndCkPaintTovoid(),
    drawShadow: T$9.CkPathAndColorAnddouble__Tovoid(),
    drawVertices: T$9.CkVerticesAndBlendModeAndCkPaintTovoid(),
    restore: T$.VoidTovoid(),
    restoreToCount: T$.intTovoid(),
    rotate: T$9.doubleTovoid(),
    save: T$.VoidToint(),
    saveLayer: T$9.RectAndCkPaintNTovoid(),
    saveLayerWithoutBounds: T$9.CkPaintNTovoid(),
    saveLayerWithFilter: T$9.RectAndImageFilterAndCkPaintNTovoid(),
    scale: T$9.doubleAnddoubleTovoid(),
    skew: T$9.doubleAnddoubleTovoid(),
    transform: T$7.Float32ListTovoid(),
    translate: T$9.doubleAnddoubleTovoid(),
    getLocalToDevice: T$0.VoidToFloat32List()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkCanvas))));
  dart.setGetterSignature(_engine.CkCanvas, () => dart.global.Object.setPrototypeOf({saveCount: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkCanvas))));
  dart.setLibraryUri(_engine.CkCanvas, I[220]);
  dart.setFieldSignature(_engine.CkCanvas, () => dart.global.Object.setPrototypeOf({skCanvas: {type: T$9.SkCanvas(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkCanvas))));
  dart.setStaticFieldSignature(_engine.CkCanvas, () => ['_kMitchellNetravali_B', '_kMitchellNetravali_C']);
  dart.defineLazy(_engine.CkCanvas, {
    /*_engine.CkCanvas._kMitchellNetravali_B*/get _kMitchellNetravali_B() {
      return 0.3333333333333333;
    },
    /*_engine.CkCanvas._kMitchellNetravali_C*/get _kMitchellNetravali_C() {
      return 0.3333333333333333;
    }
  }, false);
  _engine.SkWebGLContextOptions = class SkWebGLContextOptions {
    static new(opts) {
      let antialias = opts && 'antialias' in opts ? opts.antialias : null;
      if (antialias == null) dart.nullFailed(I[231], 286, 21, "antialias");
      let majorVersion = opts && 'majorVersion' in opts ? opts.majorVersion : null;
      if (majorVersion == null) dart.nullFailed(I[231], 288, 21, "majorVersion");
      return {antialias: js_interop['DoubleToJSNumber|get#toJS'](antialias), majorVersion: js_interop['DoubleToJSNumber|get#toJS'](majorVersion)};
    }
    static ['_#new#tearOff'](opts) {
      let antialias = opts && 'antialias' in opts ? opts.antialias : null;
      if (antialias == null) dart.nullFailed(I[231], 286, 21, "antialias");
      let majorVersion = opts && 'majorVersion' in opts ? opts.majorVersion : null;
      if (majorVersion == null) dart.nullFailed(I[231], 288, 21, "majorVersion");
      return _engine.SkWebGLContextOptions.new({antialias: antialias, majorVersion: majorVersion});
    }
  };
  _engine.SkContourMeasureIter = class SkContourMeasureIter {
    static new(path, forceClosed, resScale) {
      if (path == null) dart.nullFailed(I[231], 2088, 14, "path");
      if (forceClosed == null) dart.nullFailed(I[231], 2089, 12, "forceClosed");
      if (resScale == null) dart.nullFailed(I[231], 2090, 14, "resScale");
      return T$9.SkContourMeasureIter()[_as](new dart.global.window.flutterCanvasKit.ContourMeasureIter(path, js_interop['BoolToJSBoolean|get#toJS'](forceClosed), js_interop['DoubleToJSNumber|get#toJS'](resScale)));
    }
    static ['_#new#tearOff'](path, forceClosed, resScale) {
      if (path == null) dart.nullFailed(I[231], 2088, 14, "path");
      if (forceClosed == null) dart.nullFailed(I[231], 2089, 12, "forceClosed");
      if (resScale == null) dart.nullFailed(I[231], 2090, 14, "resScale");
      return _engine.SkContourMeasureIter.new(path, forceClosed, resScale);
    }
  };
  _engine.SkTonalColors = class SkTonalColors {
    static new(opts) {
      let ambient = opts && 'ambient' in opts ? opts.ambient : null;
      if (ambient == null) dart.nullFailed(I[231], 3386, 26, "ambient");
      let spot = opts && 'spot' in opts ? opts.spot : null;
      if (spot == null) dart.nullFailed(I[231], 3387, 26, "spot");
      return {ambient: js_interop['Float32ListToJSFloat32Array|get#toJS'](ambient), spot: js_interop['Float32ListToJSFloat32Array|get#toJS'](spot)};
    }
    static ['_#new#tearOff'](opts) {
      let ambient = opts && 'ambient' in opts ? opts.ambient : null;
      if (ambient == null) dart.nullFailed(I[231], 3386, 26, "ambient");
      let spot = opts && 'spot' in opts ? opts.spot : null;
      if (spot == null) dart.nullFailed(I[231], 3387, 26, "spot");
      return _engine.SkTonalColors.new({ambient: ambient, spot: spot});
    }
  };
  _engine.SkImageInfo = class SkImageInfo {
    static new(opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[231], 3505, 21, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[231], 3506, 21, "height");
      let colorType = opts && 'colorType' in opts ? opts.colorType : null;
      if (colorType == null) dart.nullFailed(I[231], 3507, 26, "colorType");
      let alphaType = opts && 'alphaType' in opts ? opts.alphaType : null;
      if (alphaType == null) dart.nullFailed(I[231], 3508, 26, "alphaType");
      let colorSpace = opts && 'colorSpace' in opts ? opts.colorSpace : null;
      if (colorSpace == null) dart.nullFailed(I[231], 3509, 25, "colorSpace");
      return {width: js_interop['DoubleToJSNumber|get#toJS'](width), height: js_interop['DoubleToJSNumber|get#toJS'](height), colorType: colorType, alphaType: alphaType, colorSpace: colorSpace};
    }
    static ['_#new#tearOff'](opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[231], 3505, 21, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[231], 3506, 21, "height");
      let colorType = opts && 'colorType' in opts ? opts.colorType : null;
      if (colorType == null) dart.nullFailed(I[231], 3507, 26, "colorType");
      let alphaType = opts && 'alphaType' in opts ? opts.alphaType : null;
      if (alphaType == null) dart.nullFailed(I[231], 3508, 26, "alphaType");
      let colorSpace = opts && 'colorSpace' in opts ? opts.colorSpace : null;
      if (colorSpace == null) dart.nullFailed(I[231], 3509, 25, "colorSpace");
      return _engine.SkImageInfo.new({width: width, height: height, colorType: colorType, alphaType: alphaType, colorSpace: colorSpace});
    }
  };
  _engine.SkPartialImageInfo = class SkPartialImageInfo {
    static new(opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[231], 3564, 21, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[231], 3565, 21, "height");
      let colorType = opts && 'colorType' in opts ? opts.colorType : null;
      if (colorType == null) dart.nullFailed(I[231], 3566, 26, "colorType");
      let alphaType = opts && 'alphaType' in opts ? opts.alphaType : null;
      if (alphaType == null) dart.nullFailed(I[231], 3567, 26, "alphaType");
      let colorSpace = opts && 'colorSpace' in opts ? opts.colorSpace : null;
      if (colorSpace == null) dart.nullFailed(I[231], 3568, 25, "colorSpace");
      return {width: js_interop['DoubleToJSNumber|get#toJS'](width), height: js_interop['DoubleToJSNumber|get#toJS'](height), colorType: colorType, alphaType: alphaType, colorSpace: colorSpace};
    }
    static ['_#new#tearOff'](opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[231], 3564, 21, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[231], 3565, 21, "height");
      let colorType = opts && 'colorType' in opts ? opts.colorType : null;
      if (colorType == null) dart.nullFailed(I[231], 3566, 26, "colorType");
      let alphaType = opts && 'alphaType' in opts ? opts.alphaType : null;
      if (alphaType == null) dart.nullFailed(I[231], 3567, 26, "alphaType");
      let colorSpace = opts && 'colorSpace' in opts ? opts.colorSpace : null;
      if (colorSpace == null) dart.nullFailed(I[231], 3568, 25, "colorSpace");
      return _engine.SkPartialImageInfo.new({width: width, height: height, colorType: colorType, alphaType: alphaType, colorSpace: colorSpace});
    }
  };
  var _saveLayerWithoutBounds = dart.privateName(_engine, "_saveLayerWithoutBounds");
  var _saveLayer = dart.privateName(_engine, "_saveLayer");
  var _scale$ = dart.privateName(_engine, "_scale");
  var _transform$ = dart.privateName(_engine, "_transform");
  var _drawColor = dart.privateName(_engine, "_drawColor");
  var _drawLine = dart.privateName(_engine, "_drawLine");
  var _drawPaint = dart.privateName(_engine, "_drawPaint");
  var _drawRect = dart.privateName(_engine, "_drawRect");
  var _drawRRect = dart.privateName(_engine, "_drawRRect");
  var _drawDRRect = dart.privateName(_engine, "_drawDRRect");
  var _drawOval = dart.privateName(_engine, "_drawOval");
  var _drawCircle = dart.privateName(_engine, "_drawCircle");
  var _drawArc = dart.privateName(_engine, "_drawArc");
  var _drawParagraph = dart.privateName(_engine, "_drawParagraph");
  var _drawAtlas = dart.privateName(_engine, "_drawAtlas");
  var _drawShadow = dart.privateName(_engine, "_drawShadow");
  _engine.CanvasKitCanvas = class CanvasKitCanvas extends core.Object {
    static new(recorder, cullRect = null) {
      if (recorder == null) dart.nullFailed(I[232], 11, 46, "recorder");
      if (dart.test(recorder.isRecording)) {
        dart.throw(new core.ArgumentError.new("\"recorder\" must not already be associated with another Canvas."));
      }
      cullRect == null ? cullRect = ui.Rect.largest : null;
      let ckRecorder = T$9.CkPictureRecorder()[_as](recorder);
      return new _engine.CanvasKitCanvas.__(ckRecorder.beginRecording(cullRect));
    }
    static ['_#new#tearOff'](recorder, cullRect = null) {
      if (recorder == null) dart.nullFailed(I[232], 11, 46, "recorder");
      return _engine.CanvasKitCanvas.new(recorder, cullRect);
    }
    static ['_#_#tearOff'](_canvas) {
      if (_canvas == null) dart.nullFailed(I[232], 21, 26, "_canvas");
      return new _engine.CanvasKitCanvas.__(_canvas);
    }
    save() {
      this[_canvas$].save();
    }
    saveLayer(bounds, paint) {
      if (paint == null) dart.nullFailed(I[232], 31, 44, "paint");
      if (bounds == null) {
        this[_saveLayerWithoutBounds](paint);
      } else {
        if (!dart.test(_engine.rectIsValid(bounds))) dart.assertFailed(null, I[232], 35, 14, "rectIsValid(bounds)");
        this[_saveLayer](bounds, paint);
      }
    }
    [_saveLayerWithoutBounds](paint) {
      if (paint == null) dart.nullFailed(I[232], 40, 41, "paint");
      this[_canvas$].saveLayerWithoutBounds(T$9.CkPaint()[_as](paint));
    }
    [_saveLayer](bounds, paint) {
      if (bounds == null) dart.nullFailed(I[232], 44, 27, "bounds");
      if (paint == null) dart.nullFailed(I[232], 44, 44, "paint");
      this[_canvas$].saveLayer(bounds, T$9.CkPaint()[_as](paint));
    }
    restore() {
      this[_canvas$].restore();
    }
    restoreToCount(count) {
      if (count == null) dart.nullFailed(I[232], 54, 27, "count");
      this[_canvas$].restoreToCount(count);
    }
    getSaveCount() {
      return dart.nullCheck(this[_canvas$].saveCount);
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[232], 64, 25, "dx");
      if (dy == null) dart.nullFailed(I[232], 64, 36, "dy");
      this[_canvas$].translate(dx, dy);
    }
    scale(sx, sy = null) {
      let t$36502;
      if (sx == null) dart.nullFailed(I[232], 69, 21, "sx");
      return this[_scale$](sx, (t$36502 = sy, t$36502 == null ? sx : t$36502));
    }
    [_scale$](sx, sy) {
      if (sx == null) dart.nullFailed(I[232], 71, 22, "sx");
      if (sy == null) dart.nullFailed(I[232], 71, 33, "sy");
      this[_canvas$].scale(sx, sy);
    }
    rotate(radians) {
      if (radians == null) dart.nullFailed(I[232], 76, 22, "radians");
      this[_canvas$].rotate(radians);
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[232], 81, 20, "sx");
      if (sy == null) dart.nullFailed(I[232], 81, 31, "sy");
      this[_canvas$].skew(sx, sy);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[232], 86, 30, "matrix4");
      if (matrix4[$length] !== 16) {
        dart.throw(new core.ArgumentError.new("\"matrix4\" must have 16 entries."));
      }
      this[_transform$](_engine.toMatrix32(matrix4));
    }
    [_transform$](matrix4) {
      if (matrix4 == null) dart.nullFailed(I[232], 93, 31, "matrix4");
      this[_canvas$].transform(matrix4);
    }
    getTransform() {
      return _engine.toMatrix64(this[_canvas$].getLocalToDevice());
    }
    clipRect(rect, opts) {
      if (rect == null) dart.nullFailed(I[232], 103, 25, "rect");
      let clipOp = opts && 'clipOp' in opts ? opts.clipOp : C[506] || CT.C506;
      if (clipOp == null) dart.nullFailed(I[232], 104, 18, "clipOp");
      let doAntiAlias = opts && 'doAntiAlias' in opts ? opts.doAntiAlias : true;
      if (doAntiAlias == null) dart.nullFailed(I[232], 104, 53, "doAntiAlias");
      if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[232], 105, 12, "rectIsValid(rect)");
      this[_clipRect$](rect, clipOp, doAntiAlias);
    }
    [_clipRect$](rect, clipOp, doAntiAlias) {
      if (rect == null) dart.nullFailed(I[232], 109, 26, "rect");
      if (clipOp == null) dart.nullFailed(I[232], 109, 42, "clipOp");
      if (doAntiAlias == null) dart.nullFailed(I[232], 109, 55, "doAntiAlias");
      this[_canvas$].clipRect(rect, clipOp, doAntiAlias);
    }
    clipRRect(rrect, opts) {
      if (rrect == null) dart.nullFailed(I[232], 114, 27, "rrect");
      let doAntiAlias = opts && 'doAntiAlias' in opts ? opts.doAntiAlias : true;
      if (doAntiAlias == null) dart.nullFailed(I[232], 114, 40, "doAntiAlias");
      if (!dart.test(_engine.rrectIsValid(rrect))) dart.assertFailed(null, I[232], 115, 12, "rrectIsValid(rrect)");
      this[_clipRRect$](rrect, doAntiAlias);
    }
    [_clipRRect$](rrect, doAntiAlias) {
      if (rrect == null) dart.nullFailed(I[232], 119, 28, "rrect");
      if (doAntiAlias == null) dart.nullFailed(I[232], 119, 40, "doAntiAlias");
      this[_canvas$].clipRRect(rrect, doAntiAlias);
    }
    clipPath(path, opts) {
      if (path == null) dart.nullFailed(I[232], 124, 25, "path");
      let doAntiAlias = opts && 'doAntiAlias' in opts ? opts.doAntiAlias : true;
      if (doAntiAlias == null) dart.nullFailed(I[232], 124, 37, "doAntiAlias");
      this[_canvas$].clipPath(T$9.CkPath()[_as](path), doAntiAlias);
    }
    getLocalClipBounds() {
      let transform = new _engine.Matrix4.fromFloat32List(this[_canvas$].getLocalToDevice());
      if (transform.invert() === 0) {
        return ui.Rect.zero;
      }
      return transform.transformRect(this[_canvas$].getDeviceClipBounds());
    }
    getDestinationClipBounds() {
      return this[_canvas$].getDeviceClipBounds();
    }
    drawColor(color, blendMode) {
      if (color == null) dart.nullFailed(I[232], 144, 27, "color");
      if (blendMode == null) dart.nullFailed(I[232], 144, 47, "blendMode");
      this[_drawColor](color, blendMode);
    }
    [_drawColor](color, blendMode) {
      if (color == null) dart.nullFailed(I[232], 148, 28, "color");
      if (blendMode == null) dart.nullFailed(I[232], 148, 48, "blendMode");
      this[_canvas$].drawColor(color, blendMode);
    }
    drawLine(p1, p2, paint) {
      if (p1 == null) dart.nullFailed(I[232], 153, 27, "p1");
      if (p2 == null) dart.nullFailed(I[232], 153, 41, "p2");
      if (paint == null) dart.nullFailed(I[232], 153, 54, "paint");
      if (!dart.test(_engine.offsetIsValid(p1))) dart.assertFailed(null, I[232], 154, 12, "offsetIsValid(p1)");
      if (!dart.test(_engine.offsetIsValid(p2))) dart.assertFailed(null, I[232], 155, 12, "offsetIsValid(p2)");
      this[_drawLine](p1, p2, paint);
    }
    [_drawLine](p1, p2, paint) {
      if (p1 == null) dart.nullFailed(I[232], 159, 28, "p1");
      if (p2 == null) dart.nullFailed(I[232], 159, 42, "p2");
      if (paint == null) dart.nullFailed(I[232], 159, 55, "paint");
      this[_canvas$].drawLine(p1, p2, T$9.CkPaint()[_as](paint));
    }
    drawPaint(paint) {
      if (paint == null) dart.nullFailed(I[232], 164, 27, "paint");
      this[_drawPaint](paint);
    }
    [_drawPaint](paint) {
      if (paint == null) dart.nullFailed(I[232], 168, 28, "paint");
      this[_canvas$].drawPaint(T$9.CkPaint()[_as](paint));
    }
    drawRect(rect, paint) {
      if (rect == null) dart.nullFailed(I[232], 173, 25, "rect");
      if (paint == null) dart.nullFailed(I[232], 173, 40, "paint");
      if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[232], 174, 12, "rectIsValid(rect)");
      this[_drawRect](rect, paint);
    }
    [_drawRect](rect, paint) {
      if (rect == null) dart.nullFailed(I[232], 178, 26, "rect");
      if (paint == null) dart.nullFailed(I[232], 178, 41, "paint");
      this[_canvas$].drawRect(rect, T$9.CkPaint()[_as](paint));
    }
    drawRRect(rrect, paint) {
      if (rrect == null) dart.nullFailed(I[232], 183, 27, "rrect");
      if (paint == null) dart.nullFailed(I[232], 183, 43, "paint");
      if (!dart.test(_engine.rrectIsValid(rrect))) dart.assertFailed(null, I[232], 184, 12, "rrectIsValid(rrect)");
      this[_drawRRect](rrect, paint);
    }
    [_drawRRect](rrect, paint) {
      if (rrect == null) dart.nullFailed(I[232], 188, 28, "rrect");
      if (paint == null) dart.nullFailed(I[232], 188, 44, "paint");
      this[_canvas$].drawRRect(rrect, T$9.CkPaint()[_as](paint));
    }
    drawDRRect(outer, inner, paint) {
      if (outer == null) dart.nullFailed(I[232], 193, 28, "outer");
      if (inner == null) dart.nullFailed(I[232], 193, 44, "inner");
      if (paint == null) dart.nullFailed(I[232], 193, 60, "paint");
      if (!dart.test(_engine.rrectIsValid(outer))) dart.assertFailed(null, I[232], 194, 12, "rrectIsValid(outer)");
      if (!dart.test(_engine.rrectIsValid(inner))) dart.assertFailed(null, I[232], 195, 12, "rrectIsValid(inner)");
      this[_drawDRRect](outer, inner, paint);
    }
    [_drawDRRect](outer, inner, paint) {
      if (outer == null) dart.nullFailed(I[232], 199, 29, "outer");
      if (inner == null) dart.nullFailed(I[232], 199, 45, "inner");
      if (paint == null) dart.nullFailed(I[232], 199, 61, "paint");
      this[_canvas$].drawDRRect(outer, inner, T$9.CkPaint()[_as](paint));
    }
    drawOval(rect, paint) {
      if (rect == null) dart.nullFailed(I[232], 204, 25, "rect");
      if (paint == null) dart.nullFailed(I[232], 204, 40, "paint");
      if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[232], 205, 12, "rectIsValid(rect)");
      this[_drawOval](rect, paint);
    }
    [_drawOval](rect, paint) {
      if (rect == null) dart.nullFailed(I[232], 209, 26, "rect");
      if (paint == null) dart.nullFailed(I[232], 209, 41, "paint");
      this[_canvas$].drawOval(rect, T$9.CkPaint()[_as](paint));
    }
    drawCircle(c, radius, paint) {
      if (c == null) dart.nullFailed(I[232], 214, 29, "c");
      if (radius == null) dart.nullFailed(I[232], 214, 39, "radius");
      if (paint == null) dart.nullFailed(I[232], 214, 56, "paint");
      if (!dart.test(_engine.offsetIsValid(c))) dart.assertFailed(null, I[232], 215, 12, "offsetIsValid(c)");
      this[_drawCircle](c, radius, paint);
    }
    [_drawCircle](c, radius, paint) {
      if (c == null) dart.nullFailed(I[232], 219, 30, "c");
      if (radius == null) dart.nullFailed(I[232], 219, 40, "radius");
      if (paint == null) dart.nullFailed(I[232], 219, 57, "paint");
      this[_canvas$].drawCircle(c, radius, T$9.CkPaint()[_as](paint));
    }
    drawArc(rect, startAngle, sweepAngle, useCenter, paint) {
      if (rect == null) dart.nullFailed(I[232], 224, 24, "rect");
      if (startAngle == null) dart.nullFailed(I[232], 224, 37, "startAngle");
      if (sweepAngle == null) dart.nullFailed(I[232], 224, 56, "sweepAngle");
      if (useCenter == null) dart.nullFailed(I[232], 225, 12, "useCenter");
      if (paint == null) dart.nullFailed(I[232], 225, 32, "paint");
      if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[232], 226, 12, "rectIsValid(rect)");
      this[_drawArc](rect, startAngle, sweepAngle, useCenter, paint);
    }
    [_drawArc](rect, startAngle, sweepAngle, useCenter, paint) {
      if (rect == null) dart.nullFailed(I[232], 230, 25, "rect");
      if (startAngle == null) dart.nullFailed(I[232], 230, 38, "startAngle");
      if (sweepAngle == null) dart.nullFailed(I[232], 230, 57, "sweepAngle");
      if (useCenter == null) dart.nullFailed(I[232], 231, 12, "useCenter");
      if (paint == null) dart.nullFailed(I[232], 231, 32, "paint");
      this[_canvas$].drawArc(rect, startAngle, sweepAngle, useCenter, T$9.CkPaint()[_as](paint));
    }
    drawPath(path, paint) {
      if (path == null) dart.nullFailed(I[232], 236, 25, "path");
      if (paint == null) dart.nullFailed(I[232], 236, 40, "paint");
      this[_canvas$].drawPath(T$9.CkPath()[_as](path), T$9.CkPaint()[_as](paint));
    }
    drawImage(image, p, paint) {
      if (image == null) dart.nullFailed(I[232], 241, 27, "image");
      if (p == null) dart.nullFailed(I[232], 241, 44, "p");
      if (paint == null) dart.nullFailed(I[232], 241, 56, "paint");
      if (!dart.test(_engine.offsetIsValid(p))) dart.assertFailed(null, I[232], 242, 12, "offsetIsValid(p)");
      this[_canvas$].drawImage(T$9.CkImage()[_as](image), p, T$9.CkPaint()[_as](paint));
    }
    drawImageRect(image, src, dst, paint) {
      if (image == null) dart.nullFailed(I[232], 247, 31, "image");
      if (src == null) dart.nullFailed(I[232], 247, 46, "src");
      if (dst == null) dart.nullFailed(I[232], 247, 59, "dst");
      if (paint == null) dart.nullFailed(I[232], 247, 73, "paint");
      if (!dart.test(_engine.rectIsValid(src))) dart.assertFailed(null, I[232], 248, 12, "rectIsValid(src)");
      if (!dart.test(_engine.rectIsValid(dst))) dart.assertFailed(null, I[232], 249, 12, "rectIsValid(dst)");
      this[_canvas$].drawImageRect(T$9.CkImage()[_as](image), src, dst, T$9.CkPaint()[_as](paint));
    }
    drawImageNine(image, center, dst, paint) {
      if (image == null) dart.nullFailed(I[232], 255, 16, "image");
      if (center == null) dart.nullFailed(I[232], 255, 31, "center");
      if (dst == null) dart.nullFailed(I[232], 255, 47, "dst");
      if (paint == null) dart.nullFailed(I[232], 255, 61, "paint");
      if (!dart.test(_engine.rectIsValid(center))) dart.assertFailed(null, I[232], 256, 12, "rectIsValid(center)");
      if (!dart.test(_engine.rectIsValid(dst))) dart.assertFailed(null, I[232], 257, 12, "rectIsValid(dst)");
      this[_canvas$].drawImageNine(T$9.CkImage()[_as](image), center, dst, T$9.CkPaint()[_as](paint));
    }
    drawPicture(picture) {
      if (picture == null) dart.nullFailed(I[232], 262, 31, "picture");
      this[_canvas$].drawPicture(T$9.CkPicture()[_as](picture));
    }
    drawParagraph(paragraph, offset) {
      if (paragraph == null) dart.nullFailed(I[232], 267, 35, "paragraph");
      if (offset == null) dart.nullFailed(I[232], 267, 56, "offset");
      if (!dart.test(_engine.offsetIsValid(offset))) dart.assertFailed(null, I[232], 268, 12, "offsetIsValid(offset)");
      this[_drawParagraph](paragraph, offset);
    }
    [_drawParagraph](paragraph, offset) {
      if (paragraph == null) dart.nullFailed(I[232], 272, 36, "paragraph");
      if (offset == null) dart.nullFailed(I[232], 272, 57, "offset");
      this[_canvas$].drawParagraph(T$9.CkParagraph()[_as](paragraph), offset);
    }
    drawPoints(pointMode, points, paint) {
      if (pointMode == null) dart.nullFailed(I[232], 278, 20, "pointMode");
      if (points == null) dart.nullFailed(I[232], 278, 47, "points");
      if (paint == null) dart.nullFailed(I[232], 278, 64, "paint");
      let skPoints = _engine.toMallocedSkPoints(points);
      this[_canvas$].drawPoints(T$9.CkPaint()[_as](paint), pointMode, _engine['SkFloat32ListExtension|toTypedArray'](skPoints));
      dart.global.window.flutterCanvasKit.Free(skPoints);
    }
    drawRawPoints(pointMode, points, paint) {
      if (pointMode == null) dart.nullFailed(I[232], 290, 20, "pointMode");
      if (points == null) dart.nullFailed(I[232], 290, 43, "points");
      if (paint == null) dart.nullFailed(I[232], 290, 60, "paint");
      if (points[$length][$modulo](2) !== 0) {
        dart.throw(new core.ArgumentError.new("\"points\" must have an even number of values."));
      }
      this[_canvas$].drawPoints(T$9.CkPaint()[_as](paint), pointMode, points);
    }
    drawVertices(vertices, blendMode, paint) {
      if (vertices == null) dart.nullFailed(I[232], 303, 19, "vertices");
      if (blendMode == null) dart.nullFailed(I[232], 303, 42, "blendMode");
      if (paint == null) dart.nullFailed(I[232], 303, 62, "paint");
      this[_canvas$].drawVertices(T$9.CkVertices()[_as](vertices), blendMode, T$9.CkPaint()[_as](paint));
    }
    drawAtlas(atlas, transforms, rects, colors, blendMode, cullRect, paint) {
      let t$36502;
      if (atlas == null) dart.nullFailed(I[232], 309, 16, "atlas");
      if (transforms == null) dart.nullFailed(I[232], 310, 28, "transforms");
      if (rects == null) dart.nullFailed(I[232], 311, 21, "rects");
      if (paint == null) dart.nullFailed(I[232], 315, 16, "paint");
      if (!(colors == null || dart.test(colors[$isEmpty]) || blendMode != null)) dart.assertFailed(null, I[232], 316, 12, "colors == null || colors.isEmpty || blendMode != null");
      let rectCount = rects[$length];
      if (transforms[$length] != rectCount) {
        dart.throw(new core.ArgumentError.new("\"transforms\" and \"rects\" lengths must match."));
      }
      if (colors != null && dart.test(colors[$isNotEmpty]) && colors[$length] != rectCount) {
        dart.throw(new core.ArgumentError.new("If non-null, \"colors\" length must match that of \"transforms\" and \"rects\"."));
      }
      let rstTransformBuffer = _native_typed_data.NativeFloat32List.new(dart.notNull(rectCount) * 4);
      let rectBuffer = _native_typed_data.NativeFloat32List.new(dart.notNull(rectCount) * 4);
      for (let i = 0; i < dart.notNull(rectCount); i = i + 1) {
        let index0 = i * 4;
        let index1 = index0 + 1;
        let index2 = index0 + 2;
        let index3 = index0 + 3;
        let rstTransform = transforms[$_get](i);
        let rect = rects[$_get](i);
        if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[232], 337, 14, "rectIsValid(rect)");
        rstTransformBuffer[$_set](index0, rstTransform.scos);
        rstTransformBuffer[$_set](index1, rstTransform.ssin);
        rstTransformBuffer[$_set](index2, rstTransform.tx);
        rstTransformBuffer[$_set](index3, rstTransform.ty);
        rectBuffer[$_set](index0, rect.left);
        rectBuffer[$_set](index1, rect.top);
        rectBuffer[$_set](index2, rect.right);
        rectBuffer[$_set](index3, rect.bottom);
      }
      let colorBuffer = colors == null || dart.test(colors[$isEmpty]) ? null : _engine.toFlatColors(colors);
      this[_drawAtlas](paint, atlas, rstTransformBuffer, rectBuffer, colorBuffer, (t$36502 = blendMode, t$36502 == null ? ui.BlendMode.src : t$36502));
    }
    drawRawAtlas(atlas, rstTransforms, rects, colors, blendMode, cullRect, paint) {
      let t$36502;
      if (atlas == null) dart.nullFailed(I[232], 357, 16, "atlas");
      if (rstTransforms == null) dart.nullFailed(I[232], 358, 19, "rstTransforms");
      if (rects == null) dart.nullFailed(I[232], 359, 19, "rects");
      if (paint == null) dart.nullFailed(I[232], 363, 16, "paint");
      if (!(colors == null || blendMode != null)) dart.assertFailed(null, I[232], 364, 12, "colors == null || blendMode != null");
      let rectCount = rects[$length];
      if (rstTransforms[$length] != rectCount) {
        dart.throw(new core.ArgumentError.new("\"rstTransforms\" and \"rects\" lengths must match."));
      }
      if (rectCount[$modulo](4) !== 0) {
        dart.throw(new core.ArgumentError.new("\"rstTransforms\" and \"rects\" lengths must be a multiple of four."));
      }
      if (colors != null && dart.notNull(colors[$length]) * 4 !== rectCount) {
        dart.throw(new core.ArgumentError.new("If non-null, \"colors\" length must be one fourth the length of \"rstTransforms\" and \"rects\"."));
      }
      let unsignedColors = null;
      if (colors != null) {
        unsignedColors = colors[$buffer][$asUint32List](colors[$offsetInBytes], colors[$length]);
      }
      this[_drawAtlas](paint, atlas, rstTransforms, rects, unsignedColors, (t$36502 = blendMode, t$36502 == null ? ui.BlendMode.src : t$36502));
    }
    [_drawAtlas](paint, atlas, rstTransforms, rects, colors, blendMode) {
      if (paint == null) dart.nullFailed(I[232], 390, 14, "paint");
      if (atlas == null) dart.nullFailed(I[232], 391, 14, "atlas");
      if (rstTransforms == null) dart.nullFailed(I[232], 392, 17, "rstTransforms");
      if (rects == null) dart.nullFailed(I[232], 393, 17, "rects");
      if (blendMode == null) dart.nullFailed(I[232], 395, 18, "blendMode");
      this[_canvas$].drawAtlasRaw(T$9.CkPaint()[_as](paint), T$9.CkImage()[_as](atlas), rstTransforms, rects, colors, blendMode);
    }
    drawShadow(path, color, elevation, transparentOccluder) {
      if (path == null) dart.nullFailed(I[232], 408, 27, "path");
      if (color == null) dart.nullFailed(I[232], 408, 42, "color");
      if (elevation == null) dart.nullFailed(I[232], 408, 56, "elevation");
      if (transparentOccluder == null) dart.nullFailed(I[232], 409, 12, "transparentOccluder");
      this[_drawShadow](path, color, elevation, transparentOccluder);
    }
    [_drawShadow](path, color, elevation, transparentOccluder) {
      if (path == null) dart.nullFailed(I[232], 413, 28, "path");
      if (color == null) dart.nullFailed(I[232], 413, 43, "color");
      if (elevation == null) dart.nullFailed(I[232], 413, 57, "elevation");
      if (transparentOccluder == null) dart.nullFailed(I[232], 414, 12, "transparentOccluder");
      this[_canvas$].drawShadow(T$9.CkPath()[_as](path), color, elevation, transparentOccluder);
    }
  };
  (_engine.CanvasKitCanvas.__ = function(_canvas) {
    if (_canvas == null) dart.nullFailed(I[232], 21, 26, "_canvas");
    this[_canvas$] = _canvas;
    ;
  }).prototype = _engine.CanvasKitCanvas.prototype;
  dart.addRtiResources(_engine.CanvasKitCanvas, ["_engine|CanvasKitCanvas", "ui|Canvas"]);
  dart.setMethodSignature(_engine.CanvasKitCanvas, () => dart.global.Object.setPrototypeOf({
    save: T$.VoidTovoid(),
    saveLayer: T$9.RectNAndPaintTovoid(),
    [_saveLayerWithoutBounds]: T$9.PaintTovoid(),
    [_saveLayer]: T$9.RectAndPaintTovoid(),
    restore: T$.VoidTovoid(),
    restoreToCount: T$.intTovoid(),
    getSaveCount: T$.VoidToint(),
    translate: T$9.doubleAnddoubleTovoid(),
    scale: T$9.doubleAnddoubleNTovoid(),
    [_scale$]: T$9.doubleAnddoubleTovoid(),
    rotate: T$9.doubleTovoid(),
    skew: T$9.doubleAnddoubleTovoid(),
    transform: T$9.Float64ListTovoid(),
    [_transform$]: T$7.Float32ListTovoid(),
    getTransform: T$0.VoidToFloat64List(),
    clipRect: T$9.Rect__Tovoid(),
    [_clipRect$]: T$9.RectAndClipOpAndboolTovoid(),
    clipRRect: T$9.RRect__Tovoid(),
    [_clipRRect$]: T$9.RRectAndboolTovoid(),
    clipPath: T$9.Path__Tovoid(),
    getLocalClipBounds: T$9.VoidToRect$1(),
    getDestinationClipBounds: T$9.VoidToRect$1(),
    drawColor: T$9.ColorAndBlendModeTovoid(),
    [_drawColor]: T$9.ColorAndBlendModeTovoid(),
    drawLine: T$9.OffsetAndOffsetAndPaintTovoid(),
    [_drawLine]: T$9.OffsetAndOffsetAndPaintTovoid(),
    drawPaint: T$9.PaintTovoid(),
    [_drawPaint]: T$9.PaintTovoid(),
    drawRect: T$9.RectAndPaintTovoid(),
    [_drawRect]: T$9.RectAndPaintTovoid(),
    drawRRect: T$9.RRectAndPaintTovoid(),
    [_drawRRect]: T$9.RRectAndPaintTovoid(),
    drawDRRect: T$9.RRectAndRRectAndPaintTovoid(),
    [_drawDRRect]: T$9.RRectAndRRectAndPaintTovoid(),
    drawOval: T$9.RectAndPaintTovoid(),
    [_drawOval]: T$9.RectAndPaintTovoid(),
    drawCircle: T$9.OffsetAnddoubleAndPaintTovoid(),
    [_drawCircle]: T$9.OffsetAnddoubleAndPaintTovoid(),
    drawArc: T$9.RectAnddoubleAnddouble__Tovoid$1(),
    [_drawArc]: T$9.RectAnddoubleAnddouble__Tovoid$1(),
    drawPath: T$9.PathAndPaintTovoid(),
    drawImage: T$9.ImageAndOffsetAndPaintTovoid(),
    drawImageRect: T$9.ImageAndRectAndRect__Tovoid(),
    drawImageNine: T$9.ImageAndRectAndRect__Tovoid(),
    drawPicture: T$9.PictureTovoid(),
    drawParagraph: T$9.ParagraphAndOffsetTovoid(),
    [_drawParagraph]: T$9.ParagraphAndOffsetTovoid(),
    drawPoints: T$9.PointModeAndListOfOffsetAndPaintTovoid(),
    drawRawPoints: T$9.PointModeAndFloat32ListAndPaintTovoid(),
    drawVertices: T$9.VerticesAndBlendModeAndPaintTovoid(),
    drawAtlas: T$9.ImageAndListOfRSTransformAndListOfRect__Tovoid(),
    drawRawAtlas: T$9.ImageAndFloat32ListAndFloat32List__Tovoid(),
    [_drawAtlas]: T$9.PaintAndImageAndFloat32List__Tovoid(),
    drawShadow: T$9.PathAndColorAnddouble__Tovoid(),
    [_drawShadow]: T$9.PathAndColorAnddouble__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CanvasKitCanvas))));
  dart.setStaticMethodSignature(_engine.CanvasKitCanvas, () => ['new']);
  dart.setLibraryUri(_engine.CanvasKitCanvas, I[220]);
  dart.setFieldSignature(_engine.CanvasKitCanvas, () => dart.global.Object.setPrototypeOf({[_canvas$]: {type: T$9.CkCanvas(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CanvasKitCanvas))));
  var colorFilter = dart.privateName(_engine, "ManagedSkColorFilter.colorFilter");
  var __ManagedSkColorFilter__ref = dart.privateName(_engine, "_#ManagedSkColorFilter#_ref");
  var __ManagedSkColorFilter__ref_isSet = dart.privateName(_engine, "_#ManagedSkColorFilter#_ref#isSet");
  var _ref = dart.privateName(_engine, "_ref");
  var _initRawColorFilter = dart.privateName(_engine, "_initRawColorFilter");
  _engine.ManagedSkColorFilter = class ManagedSkColorFilter extends core.Object {
    get colorFilter() {
      return this[colorFilter];
    }
    set colorFilter(value) {
      super.colorFilter = value;
    }
    static ['_#new#tearOff'](ckColorFilter) {
      if (ckColorFilter == null) dart.nullFailed(I[233], 16, 38, "ckColorFilter");
      return new _engine.ManagedSkColorFilter.new(ckColorFilter);
    }
    get [_ref]() {
      let t$36502;
      return dart.test(this[__ManagedSkColorFilter__ref_isSet]) ? (t$36502 = this[__ManagedSkColorFilter__ref], t$36502) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[233], 23, 39, "_ref#param");
      if (dart.test(this[__ManagedSkColorFilter__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__ManagedSkColorFilter__ref_isSet] = true;
        this[__ManagedSkColorFilter__ref] = _ref$35param;
      }
    }
    get skiaObject() {
      return this[_ref].nativeObject;
    }
    get hashCode() {
      return dart.hashCode(this.colorFilter);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$9.ManagedSkColorFilter()[_is](other) && dart.equals(other.colorFilter, this.colorFilter);
    }
    toString() {
      return dart.toString(this.colorFilter);
    }
  };
  (_engine.ManagedSkColorFilter.new = function(ckColorFilter) {
    if (ckColorFilter == null) dart.nullFailed(I[233], 16, 38, "ckColorFilter");
    this[__ManagedSkColorFilter__ref] = null;
    this[__ManagedSkColorFilter__ref_isSet] = false;
    this[colorFilter] = ckColorFilter;
    this[_ref] = new (G$.UniqueRefOfSkColorFilter()).new(this, this.colorFilter[_initRawColorFilter](), "ColorFilter");
  }).prototype = _engine.ManagedSkColorFilter.prototype;
  dart.addRtiResources(_engine.ManagedSkColorFilter, ["_engine|ManagedSkColorFilter"]);
  dart.setGetterSignature(_engine.ManagedSkColorFilter, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$9.UniqueRefOfSkColorFilter(),
    skiaObject: T$9.SkColorFilter()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ManagedSkColorFilter))));
  dart.setSetterSignature(_engine.ManagedSkColorFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkColorFilter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.ManagedSkColorFilter))));
  dart.setLibraryUri(_engine.ManagedSkColorFilter, I[220]);
  dart.setFieldSignature(_engine.ManagedSkColorFilter, () => dart.global.Object.setPrototypeOf({
    colorFilter: {type: T$9.CkColorFilter(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__ManagedSkColorFilter__ref]: {type: T$9.UniqueRefNOfSkColorFilter(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__ManagedSkColorFilter__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ManagedSkColorFilter))));
  dart.defineExtensionMethods(_engine.ManagedSkColorFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.ManagedSkColorFilter, ['hashCode']);
  _engine.CkColorFilter = class CkColorFilter extends core.Object {
    initRawImageFilter() {
      let skColorFilter = this[_initRawColorFilter]();
      let result = T$9.SkImageFilter()[_as](js_util.getProperty(T$9.SkImageFilterNamespace(), _engine.canvasKit, "ImageFilter").MakeColorFilter(skColorFilter, null));
      skColorFilter.delete();
      return result;
    }
    imageFilter(borrow) {
      if (borrow == null) dart.nullFailed(I[233], 67, 40, "borrow");
      let skImageFilter = this.initRawImageFilter();
      borrow(skImageFilter);
      skImageFilter.delete();
    }
    get transform() {
      return new _engine.Matrix4.identity();
    }
  };
  (_engine.CkColorFilter.new = function() {
    ;
  }).prototype = _engine.CkColorFilter.prototype;
  dart.addRtiResources(_engine.CkColorFilter, ["_engine|CkColorFilter", "_engine|CkManagedSkImageFilterConvertible", "ui|ImageFilter"]);
  dart.setMethodSignature(_engine.CkColorFilter, () => dart.global.Object.setPrototypeOf({
    initRawImageFilter: T$9.VoidToSkImageFilter(),
    imageFilter: T$9.FnTovoid$37()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkColorFilter))));
  dart.setGetterSignature(_engine.CkColorFilter, () => dart.global.Object.setPrototypeOf({transform: T$9.Matrix4()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkColorFilter))));
  dart.setLibraryUri(_engine.CkColorFilter, I[220]);
  var color$0 = dart.privateName(_engine, "CkBlendModeColorFilter.color");
  var blendMode$ = dart.privateName(_engine, "CkBlendModeColorFilter.blendMode");
  _engine.CkBlendModeColorFilter = class CkBlendModeColorFilter extends _engine.CkColorFilter {
    get color() {
      return this[color$0];
    }
    set color(value) {
      super.color = value;
    }
    get blendMode() {
      return this[blendMode$];
    }
    set blendMode(value) {
      super.blendMode = value;
    }
    static ['_#new#tearOff'](color, blendMode) {
      if (color == null) dart.nullFailed(I[233], 113, 37, "color");
      if (blendMode == null) dart.nullFailed(I[233], 113, 49, "blendMode");
      return new _engine.CkBlendModeColorFilter.new(color, blendMode);
    }
    [_initRawColorFilter]() {
      return _engine.createSkColorFilterFromColorAndBlendMode(this.color, this.blendMode);
    }
    get hashCode() {
      return core.Object.hash(this.color, this.blendMode);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$9.CkBlendModeColorFilter()[_is](other) && dart.equals(other.color, this.color) && other.blendMode == this.blendMode;
    }
    toString() {
      return "ColorFilter.mode(" + dart.str(this.color) + ", " + dart.str(this.blendMode) + ")";
    }
  };
  (_engine.CkBlendModeColorFilter.new = function(color, blendMode) {
    if (color == null) dart.nullFailed(I[233], 113, 37, "color");
    if (blendMode == null) dart.nullFailed(I[233], 113, 49, "blendMode");
    this[color$0] = color;
    this[blendMode$] = blendMode;
    dart.global.Object.getPrototypeOf(_engine.CkBlendModeColorFilter).new.call(this);
    ;
  }).prototype = _engine.CkBlendModeColorFilter.prototype;
  dart.addRtiResources(_engine.CkBlendModeColorFilter, ["_engine|CkBlendModeColorFilter"]);
  dart.setMethodSignature(_engine.CkBlendModeColorFilter, () => dart.global.Object.setPrototypeOf({[_initRawColorFilter]: T$9.VoidToSkColorFilter()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkBlendModeColorFilter))));
  dart.setLibraryUri(_engine.CkBlendModeColorFilter, I[220]);
  dart.setFieldSignature(_engine.CkBlendModeColorFilter, () => dart.global.Object.setPrototypeOf({
    color: {type: T$8.Color(), isConst: false, isFinal: true, libraryUri: I[198]},
    blendMode: {type: T$8.BlendMode(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkBlendModeColorFilter))));
  dart.defineExtensionMethods(_engine.CkBlendModeColorFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.CkBlendModeColorFilter, ['hashCode']);
  var matrix$ = dart.privateName(_engine, "CkMatrixColorFilter.matrix");
  var _normalizedMatrix = dart.privateName(_engine, "_normalizedMatrix");
  _engine.CkMatrixColorFilter = class CkMatrixColorFilter extends _engine.CkColorFilter {
    get matrix() {
      return this[matrix$];
    }
    set matrix(value) {
      super.matrix = value;
    }
    static ['_#new#tearOff'](matrix) {
      if (matrix == null) dart.nullFailed(I[233], 141, 34, "matrix");
      return new _engine.CkMatrixColorFilter.new(matrix);
    }
    get [_normalizedMatrix]() {
      if (!(this.matrix[$length] === 20)) dart.assertFailed("Color Matrix must have 20 entries.", I[233], 151, 12, "matrix.length == 20");
      let result = _native_typed_data.NativeFloat32List.new(20);
      let translationIndices = C[825] || CT.C825;
      for (let i = 0; i < 20; i = i + 1) {
        if (dart.test(translationIndices[$contains](i))) {
          result[$_set](i, dart.notNull(this.matrix[$_get](i)) / 255.0);
        } else {
          result[$_set](i, this.matrix[$_get](i));
        }
      }
      return result;
    }
    [_initRawColorFilter]() {
      return _engine['SkColorFilterNamespaceExtension|MakeMatrix'](js_util.getProperty(T$9.SkColorFilterNamespace(), _engine.canvasKit, "ColorFilter"), this[_normalizedMatrix]);
    }
    get hashCode() {
      return core.Object.hashAll(this.matrix);
    }
    _equals(other) {
      if (other == null) return false;
      return dart.equals(dart.runtimeType(this), dart.runtimeType(other)) && T$9.CkMatrixColorFilter()[_is](other) && dart.test(_engine.listEquals(T$.double(), this.matrix, other.matrix));
    }
    toString() {
      return "ColorFilter.matrix(" + dart.str(this.matrix) + ")";
    }
  };
  (_engine.CkMatrixColorFilter.new = function(matrix) {
    if (matrix == null) dart.nullFailed(I[233], 141, 34, "matrix");
    this[matrix$] = matrix;
    dart.global.Object.getPrototypeOf(_engine.CkMatrixColorFilter).new.call(this);
    ;
  }).prototype = _engine.CkMatrixColorFilter.prototype;
  dart.addRtiResources(_engine.CkMatrixColorFilter, ["_engine|CkMatrixColorFilter"]);
  dart.setMethodSignature(_engine.CkMatrixColorFilter, () => dart.global.Object.setPrototypeOf({[_initRawColorFilter]: T$9.VoidToSkColorFilter()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkMatrixColorFilter))));
  dart.setGetterSignature(_engine.CkMatrixColorFilter, () => dart.global.Object.setPrototypeOf({[_normalizedMatrix]: T$0.Float32List()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkMatrixColorFilter))));
  dart.setLibraryUri(_engine.CkMatrixColorFilter, I[220]);
  dart.setFieldSignature(_engine.CkMatrixColorFilter, () => dart.global.Object.setPrototypeOf({matrix: {type: T$9.ListOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkMatrixColorFilter))));
  dart.defineExtensionMethods(_engine.CkMatrixColorFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.CkMatrixColorFilter, ['hashCode']);
  _engine.CkLinearToSrgbGammaColorFilter = class CkLinearToSrgbGammaColorFilter extends _engine.CkColorFilter {
    static ['_#new#tearOff']() {
      return new _engine.CkLinearToSrgbGammaColorFilter.new();
    }
    [_initRawColorFilter]() {
      return T$9.SkColorFilter()[_as](js_util.getProperty(T$9.SkColorFilterNamespace(), _engine.canvasKit, "ColorFilter").MakeLinearToSRGBGamma());
    }
    _equals(other) {
      if (other == null) return false;
      return dart.equals(dart.runtimeType(this), dart.runtimeType(other));
    }
    get hashCode() {
      return dart.hashCode(dart.runtimeType(this));
    }
    toString() {
      return "ColorFilter.linearToSrgbGamma()";
    }
  };
  (_engine.CkLinearToSrgbGammaColorFilter.new = function() {
    dart.global.Object.getPrototypeOf(_engine.CkLinearToSrgbGammaColorFilter).new.call(this);
    ;
  }).prototype = _engine.CkLinearToSrgbGammaColorFilter.prototype;
  dart.addRtiResources(_engine.CkLinearToSrgbGammaColorFilter, ["_engine|CkLinearToSrgbGammaColorFilter"]);
  dart.setMethodSignature(_engine.CkLinearToSrgbGammaColorFilter, () => dart.global.Object.setPrototypeOf({[_initRawColorFilter]: T$9.VoidToSkColorFilter()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkLinearToSrgbGammaColorFilter))));
  dart.setLibraryUri(_engine.CkLinearToSrgbGammaColorFilter, I[220]);
  dart.defineExtensionMethods(_engine.CkLinearToSrgbGammaColorFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.CkLinearToSrgbGammaColorFilter, ['hashCode']);
  _engine.CkSrgbToLinearGammaColorFilter = class CkSrgbToLinearGammaColorFilter extends _engine.CkColorFilter {
    static ['_#new#tearOff']() {
      return new _engine.CkSrgbToLinearGammaColorFilter.new();
    }
    [_initRawColorFilter]() {
      return T$9.SkColorFilter()[_as](js_util.getProperty(T$9.SkColorFilterNamespace(), _engine.canvasKit, "ColorFilter").MakeSRGBToLinearGamma());
    }
    _equals(other) {
      if (other == null) return false;
      return dart.equals(dart.runtimeType(this), dart.runtimeType(other));
    }
    get hashCode() {
      return dart.hashCode(dart.runtimeType(this));
    }
    toString() {
      return "ColorFilter.srgbToLinearGamma()";
    }
  };
  (_engine.CkSrgbToLinearGammaColorFilter.new = function() {
    dart.global.Object.getPrototypeOf(_engine.CkSrgbToLinearGammaColorFilter).new.call(this);
    ;
  }).prototype = _engine.CkSrgbToLinearGammaColorFilter.prototype;
  dart.addRtiResources(_engine.CkSrgbToLinearGammaColorFilter, ["_engine|CkSrgbToLinearGammaColorFilter"]);
  dart.setMethodSignature(_engine.CkSrgbToLinearGammaColorFilter, () => dart.global.Object.setPrototypeOf({[_initRawColorFilter]: T$9.VoidToSkColorFilter()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkSrgbToLinearGammaColorFilter))));
  dart.setLibraryUri(_engine.CkSrgbToLinearGammaColorFilter, I[220]);
  dart.defineExtensionMethods(_engine.CkSrgbToLinearGammaColorFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.CkSrgbToLinearGammaColorFilter, ['hashCode']);
  var outer$ = dart.privateName(_engine, "CkComposeColorFilter.outer");
  var inner$ = dart.privateName(_engine, "CkComposeColorFilter.inner");
  _engine.CkComposeColorFilter = class CkComposeColorFilter extends _engine.CkColorFilter {
    get outer() {
      return this[outer$];
    }
    set outer(value) {
      super.outer = value;
    }
    get inner() {
      return this[inner$];
    }
    set inner(value) {
      super.inner = value;
    }
    static ['_#new#tearOff'](outer, inner) {
      if (inner == null) dart.nullFailed(I[233], 216, 47, "inner");
      return new _engine.CkComposeColorFilter.new(outer, inner);
    }
    [_initRawColorFilter]() {
      let t$36502;
      return T$9.SkColorFilter()[_as](js_util.getProperty(T$9.SkColorFilterNamespace(), _engine.canvasKit, "ColorFilter").MakeCompose((t$36502 = this.outer, t$36502 == null ? null : t$36502.skiaObject), this.inner.skiaObject));
    }
    _equals(other) {
      if (other == null) return false;
      if (!T$9.CkComposeColorFilter()[_is](other)) {
        return false;
      }
      let filter = other;
      return dart.equals(filter.outer, this.outer) && dart.equals(filter.inner, this.inner);
    }
    get hashCode() {
      return core.Object.hash(this.outer, this.inner);
    }
    toString() {
      return "ColorFilter.compose(" + dart.str(this.outer) + ", " + dart.str(this.inner) + ")";
    }
  };
  (_engine.CkComposeColorFilter.new = function(outer, inner) {
    if (inner == null) dart.nullFailed(I[233], 216, 47, "inner");
    this[outer$] = outer;
    this[inner$] = inner;
    dart.global.Object.getPrototypeOf(_engine.CkComposeColorFilter).new.call(this);
    ;
  }).prototype = _engine.CkComposeColorFilter.prototype;
  dart.addRtiResources(_engine.CkComposeColorFilter, ["_engine|CkComposeColorFilter"]);
  dart.setMethodSignature(_engine.CkComposeColorFilter, () => dart.global.Object.setPrototypeOf({[_initRawColorFilter]: T$9.VoidToSkColorFilter()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkComposeColorFilter))));
  dart.setLibraryUri(_engine.CkComposeColorFilter, I[220]);
  dart.setFieldSignature(_engine.CkComposeColorFilter, () => dart.global.Object.setPrototypeOf({
    outer: {type: T$9.ManagedSkColorFilterN(), isConst: false, isFinal: true, libraryUri: I[220]},
    inner: {type: T$9.ManagedSkColorFilter(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkComposeColorFilter))));
  dart.defineExtensionMethods(_engine.CkComposeColorFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.CkComposeColorFilter, ['hashCode']);
  var createCanvas$ = dart.privateName(_engine, "DisplayCanvasFactory.createCanvas");
  var __DisplayCanvasFactory_baseCanvas = dart.privateName(_engine, "_#DisplayCanvasFactory#baseCanvas");
  var __DisplayCanvasFactory_baseCanvas_isSet = dart.privateName(_engine, "_#DisplayCanvasFactory#baseCanvas#isSet");
  var _liveCanvases = dart.privateName(_engine, "_liveCanvases");
  var _cache = dart.privateName(_engine, "_cache");
  var _canvasCount = dart.privateName(_engine, "_canvasCount");
  var _removeFromDom = dart.privateName(_engine, "_removeFromDom");
  _engine.DisplayCanvasFactory$ = dart.generic(T => {
    var __t$DisplayCanvasFactoryOfT = () => (__t$DisplayCanvasFactoryOfT = dart.constFn(T[_eval]("_engine|DisplayCanvasFactory<0>")))();
    var __t$VoidToT = () => (__t$VoidToT = dart.constFn(T[_eval]("0()")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(T[_eval]("~(~(0))")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    var __t$ListOfT = () => (__t$ListOfT = dart.constFn(T[_eval]("core|List<0>")))();
    var __t$JSArrayOfT = () => (__t$JSArrayOfT = dart.constFn(_interceptors.JSArray$(T)))();
    class DisplayCanvasFactory extends core.Object {
      get createCanvas() {
        return this[createCanvas$];
      }
      set createCanvas(value) {
        super.createCanvas = value;
      }
      static ['_#new#tearOff'](T, opts) {
        let createCanvas = opts && 'createCanvas' in opts ? opts.createCanvas : null;
        if (createCanvas == null) dart.nullFailed(I[234], 10, 39, "createCanvas");
        return new (_engine.DisplayCanvasFactory$(T)).new({createCanvas: createCanvas});
      }
      get baseCanvas() {
        let t$36503, t$36503$;
        if (!dart.test(this[__DisplayCanvasFactory_baseCanvas_isSet])) {
          let t$36502 = (t$36503 = this.createCanvas(), (() => {
            t$36503.initialize();
            return t$36503;
          })());
          if (dart.test(this[__DisplayCanvasFactory_baseCanvas_isSet])) dart.throw(new _internal.LateError.fieldADI("baseCanvas"));
          this[__DisplayCanvasFactory_baseCanvas] = t$36502;
          this[__DisplayCanvasFactory_baseCanvas_isSet] = true;
        }
        t$36503$ = this[__DisplayCanvasFactory_baseCanvas];
        return t$36503$;
      }
      get [_canvasCount]() {
        return dart.notNull(this[_liveCanvases][$length]) + dart.notNull(this[_cache][$length]) + 1;
      }
      get debugSurfaceCount() {
        return this[_canvasCount];
      }
      get debugCacheSize() {
        return this[_cache][$length];
      }
      getCanvas() {
        if (dart.test(this[_cache][$isNotEmpty])) {
          let canvas = this[_cache][$removeLast]();
          this[_liveCanvases][$add](canvas);
          return canvas;
        } else {
          let canvas = this.createCanvas();
          canvas.initialize();
          this[_liveCanvases][$add](canvas);
          return canvas;
        }
      }
      releaseCanvases() {
        this[_cache][$addAll](this[_liveCanvases]);
        this[_liveCanvases][$clear]();
      }
      removeCanvasesFromDom() {
        this[_cache][$forEach](dart.bind(this, _removeFromDom));
        this[_liveCanvases][$forEach](dart.bind(this, _removeFromDom));
      }
      forEachCanvas(callback) {
        if (callback == null) dart.nullFailed(I[234], 81, 46, "callback");
        callback(this.baseCanvas);
        this[_cache][$forEach](callback);
        this[_liveCanvases][$forEach](callback);
      }
      [_removeFromDom](canvas) {
        T[_as](canvas);
        if (canvas == null) dart.nullFailed(I[234], 88, 25, "canvas");
        canvas.hostElement.remove();
      }
      releaseCanvas(canvas) {
        T[_as](canvas);
        if (canvas == null) dart.nullFailed(I[234], 93, 24, "canvas");
        if (!!dart.equals(canvas, this.baseCanvas)) dart.assertFailed("Attempting to release the base canvas", I[234], 94, 12, "canvas != baseCanvas");
        if (!dart.test(this[_liveCanvases][$contains](canvas))) dart.assertFailed("Attempting to release a Canvas which was not created by this factory", I[234], 96, 9, "_liveCanvases.contains(canvas)");
        canvas.hostElement.remove();
        this[_liveCanvases][$remove](canvas);
        this[_cache][$add](canvas);
      }
      isLive(canvas) {
        T[_as](canvas);
        if (canvas == null) dart.nullFailed(I[234], 110, 17, "canvas");
        if (dart.equals(canvas, this.baseCanvas) || dart.test(this[_liveCanvases][$contains](canvas))) {
          return true;
        }
        if (!dart.test(this[_cache][$contains](canvas))) dart.assertFailed(null, I[234], 114, 12, "_cache.contains(canvas)");
        return false;
      }
      dispose() {
        for (let canvas of this[_cache]) {
          canvas.dispose();
        }
        for (let canvas of this[_liveCanvases]) {
          canvas.dispose();
        }
        this.baseCanvas.dispose();
        this[_liveCanvases][$clear]();
        this[_cache][$clear]();
      }
    }
    (DisplayCanvasFactory.new = function(opts) {
      let createCanvas = opts && 'createCanvas' in opts ? opts.createCanvas : null;
      if (createCanvas == null) dart.nullFailed(I[234], 10, 39, "createCanvas");
      this[__DisplayCanvasFactory_baseCanvas] = null;
      this[__DisplayCanvasFactory_baseCanvas_isSet] = false;
      this[_liveCanvases] = __t$JSArrayOfT().of([]);
      this[_cache] = __t$JSArrayOfT().of([]);
      this[createCanvas$] = createCanvas;
      this.$ti = this.$ti || __t$DisplayCanvasFactoryOfT();
      if (!dart.test(dart.fn(() => {
        _engine.registerHotRestartListener(dart.bind(this, 'dispose'));
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[234], 11, 12, "() {\n      registerHotRestartListener(dispose);\n      return true;\n    }()");
    }).prototype = DisplayCanvasFactory.prototype;
    dart.addRtiResources(DisplayCanvasFactory, ["_engine|DisplayCanvasFactory"]);
    dart.setMethodSignature(DisplayCanvasFactory, () => dart.global.Object.setPrototypeOf({
      getCanvas: __t$VoidToT(),
      releaseCanvases: T$.VoidTovoid(),
      removeCanvasesFromDom: T$.VoidTovoid(),
      forEachCanvas: __t$FnTovoid(),
      [_removeFromDom]: T$.ObjectNTovoid(),
      releaseCanvas: T$.ObjectNTovoid(),
      isLive: T$.ObjectNTobool(),
      dispose: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(DisplayCanvasFactory))));
    dart.setGetterSignature(DisplayCanvasFactory, () => dart.global.Object.setPrototypeOf({
      baseCanvas: T,
      [_canvasCount]: T$.int(),
      debugSurfaceCount: T$.int(),
      debugCacheSize: T$.int()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(DisplayCanvasFactory))));
    dart.setLibraryUri(DisplayCanvasFactory, I[220]);
    dart.setFieldSignature(DisplayCanvasFactory, () => dart.global.Object.setPrototypeOf({
      createCanvas: {type: __t$VoidToT(), isConst: false, isFinal: true},
      [__DisplayCanvasFactory_baseCanvas]: {type: __t$TN(), isConst: false, isFinal: false},
      [__DisplayCanvasFactory_baseCanvas_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_liveCanvases]: {type: __t$ListOfT(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_cache]: {type: __t$ListOfT(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(DisplayCanvasFactory))));
    return DisplayCanvasFactory;
  });
  _engine.DisplayCanvasFactory = _engine.DisplayCanvasFactory$();
  var sceneHost$ = dart.privateName(_engine, "HtmlViewEmbedder.sceneHost");
  var rasterizer$ = dart.privateName(_engine, "HtmlViewEmbedder.rasterizer");
  var debugBoundsCanvas = dart.privateName(_engine, "HtmlViewEmbedder.debugBoundsCanvas");
  var _currentCompositionParams = dart.privateName(_engine, "_currentCompositionParams");
  var _viewClipChains = dart.privateName(_engine, "_viewClipChains");
  var _viewsToRecomposite = dart.privateName(_engine, "_viewsToRecomposite");
  var _compositionOrder = dart.privateName(_engine, "_compositionOrder");
  var _activeCompositionOrder = dart.privateName(_engine, "_activeCompositionOrder");
  var _activeRendering = dart.privateName(_engine, "_activeRendering");
  var __HtmlViewEmbedder__frameSize = dart.privateName(_engine, "_#HtmlViewEmbedder#_frameSize");
  var __HtmlViewEmbedder__frameSize_isSet = dart.privateName(_engine, "_#HtmlViewEmbedder#_frameSize#isSet");
  var _clipPathCount = dart.privateName(_engine, "_clipPathCount");
  var _svgPathDefs = dart.privateName(_engine, "_svgPathDefs");
  var _svgClipDefs = dart.privateName(_engine, "_svgClipDefs");
  var _frameSize = dart.privateName(_engine, "_frameSize");
  var _compositeWithParams = dart.privateName(_engine, "_compositeWithParams");
  var _countClips = dart.privateName(_engine, "_countClips");
  var _reconstructClipViewsChain = dart.privateName(_engine, "_reconstructClipViewsChain");
  var _applyMutators = dart.privateName(_engine, "_applyMutators");
  var _cleanUpClipDefs = dart.privateName(_engine, "_cleanUpClipDefs");
  var _resetAnchor = dart.privateName(_engine, "_resetAnchor");
  var _ensureSvgPathDefs = dart.privateName(_engine, "_ensureSvgPathDefs");
  var _modifyRenderingForMaxCanvases = dart.privateName(_engine, "_modifyRenderingForMaxCanvases");
  var _updateDomForNewRendering = dart.privateName(_engine, "_updateDomForNewRendering");
  var _getIndexMapFromPreviousRendering = dart.privateName(_engine, "_getIndexMapFromPreviousRendering");
  var _getElement = dart.privateName(_engine, "_getElement");
  _engine.HtmlViewEmbedder = class HtmlViewEmbedder extends core.Object {
    get sceneHost() {
      return this[sceneHost$];
    }
    set sceneHost(value) {
      super.sceneHost = value;
    }
    get rasterizer() {
      return this[rasterizer$];
    }
    set rasterizer(value) {
      super.rasterizer = value;
    }
    get debugBoundsCanvas() {
      return this[debugBoundsCanvas];
    }
    set debugBoundsCanvas(value) {
      this[debugBoundsCanvas] = value;
    }
    static ['_#new#tearOff'](sceneHost, rasterizer) {
      if (sceneHost == null) dart.nullFailed(I[235], 10, 25, "sceneHost");
      if (rasterizer == null) dart.nullFailed(I[235], 10, 41, "rasterizer");
      return new _engine.HtmlViewEmbedder.new(sceneHost, rasterizer);
    }
    static get maximumCanvases() {
      return _engine.configuration.canvasKitMaximumSurfaces;
    }
    get debugActiveRendering() {
      return this[_activeRendering];
    }
    get [_frameSize]() {
      let t$36503;
      return dart.test(this[__HtmlViewEmbedder__frameSize_isSet]) ? (t$36503 = this[__HtmlViewEmbedder__frameSize], t$36503) : dart.throw(new _internal.LateError.fieldNI("_frameSize"));
    }
    set [_frameSize](_frameSize$35param) {
      if (_frameSize$35param == null) dart.nullFailed(I[235], 56, 19, "_frameSize#param");
      this[__HtmlViewEmbedder__frameSize_isSet] = true;
      this[__HtmlViewEmbedder__frameSize] = _frameSize$35param;
    }
    set frameSize(size) {
      if (size == null) dart.nullFailed(I[235], 58, 28, "size");
      this[_frameSize] = size;
    }
    getOverlayCanvases() {
      return this[_context].pictureRecordersCreatedDuringPreroll[$map](T$9.CkCanvas(), dart.fn(r => {
        if (r == null) dart.nullFailed(I[235], 75, 33, "r");
        return dart.nullCheck(r.recordingCanvas);
      }, T$9.CkPictureRecorderToCkCanvas()));
    }
    prerollCompositeEmbeddedView(viewId, params) {
      if (viewId == null) dart.nullFailed(I[235], 78, 41, "viewId");
      if (params == null) dart.nullFailed(I[235], 78, 68, "params");
      let pictureRecorder = new _engine.CkPictureRecorder.new();
      pictureRecorder.beginRecording(ui.Offset.zero['&'](this[_frameSize].toSize()));
      this[_context].pictureRecordersCreatedDuringPreroll[$add](pictureRecorder);
      if (dart.equals(this[_currentCompositionParams][$_get](viewId), params)) {
        if (!dart.test(this[_activeCompositionOrder][$contains](viewId))) {
          this[_viewsToRecomposite].add(viewId);
        }
        return;
      }
      this[_currentCompositionParams][$_set](viewId, params);
      this[_viewsToRecomposite].add(viewId);
    }
    compositeEmbeddedView(viewId) {
      let t$36503, t$36503$;
      if (viewId == null) dart.nullFailed(I[235], 100, 39, "viewId");
      this.rasterizer.view.dom.injectPlatformView(viewId);
      let overlayIndex = this[_context].viewCount;
      this[_compositionOrder][$add](viewId);
      t$36503 = this[_context];
      t$36503.viewCount = dart.notNull(t$36503.viewCount) + 1;
      let recorderToUseForRendering = null;
      if (dart.notNull(overlayIndex) < dart.notNull(this[_context].pictureRecordersCreatedDuringPreroll[$length])) {
        recorderToUseForRendering = this[_context].pictureRecordersCreatedDuringPreroll[$_get](overlayIndex);
        this[_context].pictureRecorders[$add](recorderToUseForRendering);
      }
      if (dart.test(this[_viewsToRecomposite].contains(viewId))) {
        this[_compositeWithParams](viewId, dart.nullCheck(this[_currentCompositionParams][$_get](viewId)));
        this[_viewsToRecomposite].remove(viewId);
      }
      t$36503$ = recorderToUseForRendering;
      return t$36503$ == null ? null : t$36503$.recordingCanvas;
    }
    [_compositeWithParams](platformViewId, params) {
      let t$36503;
      if (platformViewId == null) dart.nullFailed(I[235], 122, 33, "platformViewId");
      if (params == null) dart.nullFailed(I[235], 122, 68, "params");
      let clipChain = this[_viewClipChains][$putIfAbsent](platformViewId, dart.fn(() => new _engine.ViewClipChain.new({view: _engine.createPlatformViewSlot(platformViewId)}), T$9.VoidToViewClipChain()));
      let slot = clipChain.slot;
      t$36503 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), slot, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36503, dart.str(params.size.width) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36503, dart.str(params.size.height) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36503, "absolute");
        return t$36503;
      })();
      let currentClippingCount = this[_countClips](params.mutators);
      let previousClippingCount = clipChain.clipCount;
      if (currentClippingCount != previousClippingCount) {
        let oldPlatformViewRoot = clipChain.root;
        let newPlatformViewRoot = this[_reconstructClipViewsChain](currentClippingCount, slot, oldPlatformViewRoot);
        clipChain.updateClipChain({root: newPlatformViewRoot, clipCount: currentClippingCount});
      }
      this[_applyMutators](params, slot, platformViewId);
    }
    [_countClips](mutators) {
      if (mutators == null) dart.nullFailed(I[235], 159, 33, "mutators");
      let clipCount = 0;
      for (let mutator of mutators) {
        if (dart.test(mutator.isClipType)) {
          clipCount = clipCount + 1;
        }
      }
      return clipCount;
    }
    [_reconstructClipViewsChain](numClips, platformView, headClipView) {
      if (numClips == null) dart.nullFailed(I[235], 170, 9, "numClips");
      if (platformView == null) dart.nullFailed(I[235], 171, 16, "platformView");
      if (headClipView == null) dart.nullFailed(I[235], 172, 16, "headClipView");
      let headClipViewNextSibling = null;
      let headClipViewWasAttached = false;
      if (js_util.getProperty(T$9.DomNodeN(), headClipView, "parentNode") != null) {
        headClipViewWasAttached = true;
        headClipViewNextSibling = js_util.getProperty(T$9.DomNodeN(), headClipView, "nextSibling");
        headClipView.remove();
      }
      let head = platformView;
      let clipIndex = 0;
      while (!dart.equals(head, headClipView) && clipIndex < dart.notNull(numClips)) {
        head = dart.nullCheck(_engine['DomNodeExtension|get#parent'](head));
        clipIndex = clipIndex + 1;
      }
      while (clipIndex < dart.notNull(numClips)) {
        let clippingView = _engine.createDomElement("flt-clip");
        clippingView.append(head);
        head = clippingView;
        clipIndex = clipIndex + 1;
      }
      head.remove();
      if (headClipViewWasAttached) {
        T$9.DomNode()[_as](this.sceneHost.insertBefore(head, headClipViewNextSibling));
      }
      return head;
    }
    [_cleanUpClipDefs](viewId) {
      if (viewId == null) dart.nullFailed(I[235], 206, 29, "viewId");
      if (dart.test(this[_svgClipDefs][$containsKey](viewId))) {
        let clipDefs = dart.nullCheck(_engine['DomElementExtension|querySelector'](dart.nullCheck(this[_svgPathDefs]), "#sk_path_defs"));
        let nodesToRemove = G$.JSArrayOfDomElement().of([]);
        let oldDefs = dart.nullCheck(this[_svgClipDefs][$_get](viewId));
        for (let child of _engine['DomElementExtension|get#children'](clipDefs)) {
          if (dart.test(oldDefs.contains(_engine['DomElementExtension|get#id'](child)))) {
            nodesToRemove[$add](child);
          }
        }
        for (let node of nodesToRemove) {
          node.remove();
        }
        dart.nullCheck(this[_svgClipDefs][$_get](viewId)).clear();
      }
    }
    [_applyMutators](params, embeddedView, viewId) {
      let t$36503, t$36503$;
      if (params == null) dart.nullFailed(I[235], 224, 26, "params");
      if (embeddedView == null) dart.nullFailed(I[235], 224, 45, "embeddedView");
      if (viewId == null) dart.nullFailed(I[235], 224, 63, "viewId");
      let mutators = params.mutators;
      let head = embeddedView;
      let headTransform = dart.equals(params.offset, ui.Offset.zero) ? new _engine.Matrix4.identity() : _engine.Matrix4.translationValues(params.offset.dx, params.offset.dy, 0.0);
      let embeddedOpacity = 1.0;
      this[_resetAnchor](head);
      this[_cleanUpClipDefs](viewId);
      for (let mutator of mutators) {
        switch (mutator.type) {
          case C[826] || CT.C826:
            {
              headTransform = dart.nullCheck(mutator.matrix).multiplied(headTransform);
              _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), head, "style"), _engine.float64ListToCssTransform(headTransform.storage));
              break;
            }
          case C[827] || CT.C827:
          case C[828] || CT.C828:
          case C[829] || CT.C829:
            {
              let clipView = dart.nullCheck(_engine['DomNodeExtension|get#parent'](head));
              _engine['DomCSSStyleDeclarationExtension|set#clip'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), clipView, "style"), "");
              _engine['DomCSSStyleDeclarationExtension|set#clipPath'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), clipView, "style"), "");
              headTransform = new _engine.Matrix4.identity();
              _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), clipView, "style"), "");
              _engine['DomCSSStyleDeclarationExtension|set#width'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), clipView, "style"), "100%");
              _engine['DomCSSStyleDeclarationExtension|set#height'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), clipView, "style"), "100%");
              if (mutator.rect != null) {
                let rect = dart.nullCheck(mutator.rect);
                _engine['DomCSSStyleDeclarationExtension|set#clip'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), clipView, "style"), "rect(" + dart.str(rect.top) + "px, " + dart.str(rect.right) + "px, " + dart.str(rect.bottom) + "px, " + dart.str(rect.left) + "px)");
              } else if (mutator.rrect != null) {
                let path = _engine.CkPath.new();
                path.addRRect(dart.nullCheck(mutator.rrect));
                this[_ensureSvgPathDefs]();
                let pathDefs = dart.nullCheck(_engine['DomElementExtension|querySelector'](dart.nullCheck(this[_svgPathDefs]), "#sk_path_defs"));
                this[_clipPathCount] = dart.notNull(this[_clipPathCount]) + 1;
                let clipId = "svgClip" + dart.str(this[_clipPathCount]);
                let newClipPath = _engine.createSVGClipPathElement();
                _engine['DomElementExtension|set#id'](newClipPath, clipId);
                newClipPath.append((t$36503 = _engine.createSVGPathElement(), (() => {
                  _engine['DomElementExtension|setAttribute'](t$36503, "d", dart.nullCheck(path.toSvgString()));
                  return t$36503;
                })()));
                pathDefs.append(newClipPath);
                this[_svgClipDefs][$putIfAbsent](viewId, dart.fn(() => G$.LinkedHashSetOfString().new(), T$6.VoidToSetOfString())).add(clipId);
                _engine['DomCSSStyleDeclarationExtension|set#clipPath'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), clipView, "style"), "url(#" + clipId + ")");
              } else if (mutator.path != null) {
                let path = T$9.CkPath()[_as](dart.nullCheck(mutator.path));
                this[_ensureSvgPathDefs]();
                let pathDefs = dart.nullCheck(_engine['DomElementExtension|querySelector'](dart.nullCheck(this[_svgPathDefs]), "#sk_path_defs"));
                this[_clipPathCount] = dart.notNull(this[_clipPathCount]) + 1;
                let clipId = "svgClip" + dart.str(this[_clipPathCount]);
                let newClipPath = _engine.createSVGClipPathElement();
                _engine['DomElementExtension|set#id'](newClipPath, clipId);
                newClipPath.append((t$36503$ = _engine.createSVGPathElement(), (() => {
                  _engine['DomElementExtension|setAttribute'](t$36503$, "d", dart.nullCheck(path.toSvgString()));
                  return t$36503$;
                })()));
                pathDefs.append(newClipPath);
                this[_svgClipDefs][$putIfAbsent](viewId, dart.fn(() => G$.LinkedHashSetOfString().new(), T$6.VoidToSetOfString())).add(clipId);
                _engine['DomCSSStyleDeclarationExtension|set#clipPath'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), clipView, "style"), "url(#" + clipId + ")");
              }
              this[_resetAnchor](clipView);
              head = clipView;
              break;
            }
          case C[830] || CT.C830:
            {
              embeddedOpacity = embeddedOpacity * dart.notNull(mutator.alphaFloat);
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
        }
      }
      _engine['DomCSSStyleDeclarationExtension|set#opacity'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), embeddedView, "style"), embeddedOpacity[$toString]());
      let scale = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
      let inverseScale = 1 / dart.notNull(scale);
      let scaleMatrix = _engine.Matrix4.diagonal3Values(inverseScale, inverseScale, 1.0);
      headTransform = scaleMatrix.multiplied(headTransform);
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), head, "style"), _engine.float64ListToCssTransform(headTransform.storage));
    }
    [_resetAnchor](element) {
      if (element == null) dart.nullFailed(I[235], 319, 32, "element");
      _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "0 0 0");
      _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "absolute");
    }
    [_ensureSvgPathDefs]() {
      let t$36503;
      if (this[_svgPathDefs] != null) {
        return;
      }
      this[_svgPathDefs] = T$9.SVGElement()[_as](_engine['DomNodeExtension|cloneNode'](_engine.kSvgResourceHeader, false));
      dart.nullCheck(this[_svgPathDefs]).append((t$36503 = _engine.createSVGDefsElement(), (() => {
        _engine['DomElementExtension|set#id'](t$36503, "sk_path_defs");
        return t$36503;
      })()));
      this.sceneHost.append(dart.nullCheck(this[_svgPathDefs]));
    }
    submitFrame(basePicture) {
      if (basePicture == null) dart.nullFailed(I[235], 342, 38, "basePicture");
      return async.async(T$.void(), (function* submitFrame() {
        let t$36503, t$36503$;
        let pictures = G$.JSArrayOfCkPicture().of([basePicture]);
        for (let recorder of this[_context].pictureRecorders) {
          pictures[$add](recorder.endRecording());
        }
        let rendering = _engine.createOptimizedRendering(pictures, this[_compositionOrder], this[_currentCompositionParams]);
        rendering = this[_modifyRenderingForMaxCanvases](rendering);
        this[_updateDomForNewRendering](rendering);
        if (dart.test(rendering.equalsForRendering(this[_activeRendering]))) {
          for (let i = 0; i < dart.notNull(rendering.canvases[$length]); i = i + 1) {
            rendering.canvases[$_get](i).displayCanvas = this[_activeRendering].canvases[$_get](i).displayCanvas;
            this[_activeRendering].canvases[$_get](i).displayCanvas = null;
          }
        }
        this[_activeRendering] = rendering;
        let renderCanvases = rendering.canvases;
        for (let renderCanvas of renderCanvases) {
          yield this.rasterizer.rasterizeToCanvas(dart.nullCheck(renderCanvas.displayCanvas), renderCanvas.pictures);
        }
        for (let recorder of this[_context].pictureRecordersCreatedDuringPreroll) {
          if (dart.test(recorder.isRecording)) {
            recorder.endRecording();
          }
        }
        if (dart.test(_engine.debugOverlayOptimizationBounds)) {
          this.debugBoundsCanvas == null ? this.debugBoundsCanvas = this.rasterizer.displayFactory.getCanvas() : null;
          let boundsRecorder = new _engine.CkPictureRecorder.new();
          let boundsCanvas = boundsRecorder.beginRecording(new ui.Rect.fromLTWH(0.0, 0.0, this[_frameSize].width[$toDouble](), this[_frameSize].height[$toDouble]()));
          let platformViewBoundsPaint = (t$36503 = new _engine.CkPaint.new(), (() => {
            t$36503.color = C[831] || CT.C831;
            return t$36503;
          })());
          let pictureBoundsPaint = (t$36503$ = new _engine.CkPaint.new(), (() => {
            t$36503$.color = C[832] || CT.C832;
            return t$36503$;
          })());
          for (let entity of this[_activeRendering].entities) {
            if (T$9.RenderingPlatformView()[_is](entity)) {
              if (entity.debugComputedBounds != null) {
                boundsCanvas.drawRect(dart.nullCheck(entity.debugComputedBounds), platformViewBoundsPaint);
              }
            } else if (T$9.RenderingRenderCanvas()[_is](entity)) {
              for (let picture of entity.pictures) {
                boundsCanvas.drawRect(picture.cullRect, pictureBoundsPaint);
              }
            }
          }
          yield this.rasterizer.rasterizeToCanvas(dart.nullCheck(this.debugBoundsCanvas), G$.JSArrayOfCkPicture().of([boundsRecorder.endRecording()]));
          this.sceneHost.append(dart.nullCheck(this.debugBoundsCanvas).hostElement);
        }
        this[_context] = new _engine.EmbedderFrameContext.new();
        if (dart.test(_engine.listEquals(T$.int(), this[_compositionOrder], this[_activeCompositionOrder]))) {
          this[_compositionOrder][$clear]();
          return;
        }
        let unusedViews = G$.LinkedHashSetOfint().from(this[_activeCompositionOrder]);
        this[_activeCompositionOrder][$clear]();
        let debugInvalidViewIds = null;
        for (let i = 0; i < dart.notNull(this[_compositionOrder][$length]); i = i + 1) {
          let viewId = this[_compositionOrder][$_get](i);
          let isViewInvalid = false;
          if (!dart.test(dart.fn(() => {
            isViewInvalid = !dart.test(_engine.PlatformViewManager.instance.knowsViewId(viewId));
            if (isViewInvalid) {
              debugInvalidViewIds == null ? debugInvalidViewIds = G.JSArrayOfint().of([]) : null;
              dart.nullCheck(debugInvalidViewIds)[$add](viewId);
            }
            return true;
          }, T$.VoidTobool())())) dart.assertFailed(null, I[235], 424, 14, "() {\n        isViewInvalid = !PlatformViewManager.instance.knowsViewId(viewId);\n        if (isViewInvalid) {\n          debugInvalidViewIds ??= <int>[];\n          debugInvalidViewIds!.add(viewId);\n        }\n        return true;\n      }()");
          if (isViewInvalid) {
            continue;
          }
          this[_activeCompositionOrder][$add](viewId);
          unusedViews.remove(viewId);
        }
        this[_compositionOrder][$clear]();
        unusedViews[$forEach](dart.bind(this, 'disposeView'));
        if (!(debugInvalidViewIds == null || dart.test(dart.nullCheck(debugInvalidViewIds)[$isEmpty]))) dart.assertFailed("Cannot render platform views: " + dart.str(dart.nullCheck(debugInvalidViewIds)[$join](", ")) + ". " + "These views have not been created, or they have been deleted.", I[235], 445, 7, "debugInvalidViewIds == null || debugInvalidViewIds!.isEmpty");
      }).bind(this));
    }
    disposeView(viewId) {
      let t$36503;
      if (viewId == null) dart.nullFailed(I[235], 451, 24, "viewId");
      let clipChain = this[_viewClipChains][$remove](viewId);
      t$36503 = clipChain;
      t$36503 == null ? null : t$36503.root.remove();
      this[_currentCompositionParams][$remove](viewId);
      this[_viewsToRecomposite].remove(viewId);
      this[_cleanUpClipDefs](viewId);
      this[_svgClipDefs][$remove](viewId);
    }
    [_modifyRenderingForMaxCanvases](rendering) {
      if (rendering == null) dart.nullFailed(I[235], 463, 54, "rendering");
      let result = new _engine.Rendering.new();
      let numCanvases = rendering.canvases[$length];
      if (dart.notNull(numCanvases) <= dart.notNull(_engine.HtmlViewEmbedder.maximumCanvases)) {
        return rendering;
      }
      let numCanvasesToDelete = dart.notNull(numCanvases) - dart.notNull(_engine.HtmlViewEmbedder.maximumCanvases);
      let picturesForLastCanvas = G$.JSArrayOfCkPicture().of([]);
      let modifiedEntities = G$.ListOfRenderingEntity().from(rendering.entities);
      let sawLastCanvas = false;
      for (let i = dart.notNull(rendering.entities[$length]) - 1; i >= 0; i = i - 1) {
        let entity = modifiedEntities[$_get](i);
        if (T$9.RenderingRenderCanvas()[_is](entity)) {
          if (!sawLastCanvas) {
            sawLastCanvas = true;
            continue;
          }
          modifiedEntities[$removeAt](i);
          picturesForLastCanvas[$insertAll](0, entity.pictures);
          numCanvasesToDelete = numCanvasesToDelete - 1;
          if (numCanvasesToDelete === 0) {
            break;
          }
        }
      }
      sawLastCanvas = _engine.HtmlViewEmbedder.maximumCanvases === 1;
      for (let i = dart.notNull(modifiedEntities[$length]) - 1; i > 0; i = i - 1) {
        let entity = modifiedEntities[$_get](i);
        if (T$9.RenderingRenderCanvas()[_is](entity)) {
          if (sawLastCanvas) {
            entity.pictures[$addAll](picturesForLastCanvas);
            break;
          }
          sawLastCanvas = true;
        }
      }
      result.entities[$addAll](modifiedEntities);
      return result;
    }
    [_updateDomForNewRendering](rendering) {
      if (rendering == null) dart.nullFailed(I[235], 508, 44, "rendering");
      if (dart.test(rendering.equalsForRendering(this[_activeRendering]))) {
        return;
      }
      let indexMap = this[_getIndexMapFromPreviousRendering](this[_activeRendering], rendering);
      let existingIndexMap = indexMap[$where](dart.fn(index => {
        if (index == null) dart.nullFailed(I[235], 516, 29, "index");
        return index !== -1;
      }, T$.intTobool()))[$toList]();
      let staticElements = _engine.longestIncreasingSubsequence(existingIndexMap);
      for (let i = 0; i < dart.notNull(staticElements[$length]); i = i + 1) {
        staticElements[$_set](i, existingIndexMap[$_get](staticElements[$_get](i)));
      }
      for (let i = 0; i < dart.notNull(this[_activeRendering].entities[$length]); i = i + 1) {
        if (dart.test(indexMap[$contains](i))) {
          continue;
        }
        let entity = this[_activeRendering].entities[$_get](i);
        if (T$9.RenderingPlatformView()[_is](entity)) {
          this.disposeView(entity.viewId);
        } else if (T$9.RenderingRenderCanvas()[_is](entity)) {
          if (!(entity.displayCanvas != null)) dart.assertFailed("RenderCanvas in previous rendering was not assigned a DisplayCanvas", I[235], 537, 13, "entity.displayCanvas != null");
          this.rasterizer.releaseOverlay(dart.nullCheck(entity.displayCanvas));
          entity.displayCanvas = null;
        }
      }
      const updateRenderCanvasWithDisplay = (renderCanvas, index) => {
        if (renderCanvas == null) dart.nullFailed(I[235], 549, 31, "renderCanvas");
        if (index == null) dart.nullFailed(I[235], 549, 49, "index");
        if (indexMap[$_get](index) !== -1) {
          let previousEntity = this[_activeRendering].entities[$_get](indexMap[$_get](index));
          if (!(T$9.RenderingRenderCanvas()[_is](previousEntity) && previousEntity.displayCanvas != null)) dart.assertFailed(null, I[235], 557, 16, "previousEntity is RenderingRenderCanvas &&\n            previousEntity.displayCanvas != null");
          renderCanvas.displayCanvas = T$9.RenderingRenderCanvas()[_as](previousEntity).displayCanvas;
          previousEntity.displayCanvas = null;
        } else {
          renderCanvas.displayCanvas = this.rasterizer.getOverlay();
        }
      };
      dart.fn(updateRenderCanvasWithDisplay, T$9.RenderingRenderCanvasAndintTovoid());
      let staticElementIndex = 0;
      let nextRenderingIndex = 0;
      while (staticElementIndex < dart.notNull(staticElements[$length])) {
        let staticElementIndexInActiveRendering = staticElements[$_get](staticElementIndex);
        let staticDomElement = this[_getElement](this[_activeRendering].entities[$_get](staticElementIndexInActiveRendering));
        while (indexMap[$_get](nextRenderingIndex) != staticElementIndexInActiveRendering) {
          let nextEntity = rendering.entities[$_get](nextRenderingIndex);
          if (T$9.RenderingRenderCanvas()[_is](nextEntity)) {
            updateRenderCanvasWithDisplay(nextEntity, nextRenderingIndex);
          }
          T$9.DomNode()[_as](this.sceneHost.insertBefore(this[_getElement](nextEntity), staticDomElement));
          nextRenderingIndex = nextRenderingIndex + 1;
        }
        if (T$9.RenderingRenderCanvas()[_is](rendering.entities[$_get](nextRenderingIndex))) {
          updateRenderCanvasWithDisplay(T$9.RenderingRenderCanvas()[_as](rendering.entities[$_get](nextRenderingIndex)), nextRenderingIndex);
        }
        nextRenderingIndex = nextRenderingIndex + 1;
        staticElementIndex = staticElementIndex + 1;
      }
      while (nextRenderingIndex < dart.notNull(rendering.entities[$length])) {
        let nextEntity = rendering.entities[$_get](nextRenderingIndex);
        if (T$9.RenderingRenderCanvas()[_is](nextEntity)) {
          updateRenderCanvasWithDisplay(nextEntity, nextRenderingIndex);
        }
        this.sceneHost.append(this[_getElement](nextEntity));
        nextRenderingIndex = nextRenderingIndex + 1;
      }
    }
    [_getElement](entity) {
      if (entity == null) dart.nullFailed(I[235], 612, 42, "entity");
      {
        let t$36$350$350 = entity;
        {
          if (T$9.RenderingRenderCanvas()[_is](t$36$350$350)) {
            {
              return dart.nullCheck(entity.displayCanvas).hostElement;
            }
          }
        }
        {
          if (T$9.RenderingPlatformView()[_is](t$36$350$350)) {
            {
              return dart.nullCheck(this[_viewClipChains][$_get](entity.viewId)).root;
            }
          }
        }
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
    [_getIndexMapFromPreviousRendering](previous, next) {
      if (previous == null) dart.nullFailed(I[235], 625, 17, "previous");
      if (next == null) dart.nullFailed(I[235], 625, 37, "next");
      if (!!dart.test(previous.equalsForRendering(next))) dart.assertFailed("Should not be in this method if the Renderings are equal", I[235], 626, 12, "!previous.equalsForRendering(next)");
      let result = G.JSArrayOfint().of([]);
      let index = 0;
      let maxUnchangedLength = math.min(T$.int(), previous.entities[$length], next.entities[$length]);
      let alreadyClaimedCanvases = G$.LinkedHashSetOfint().new();
      while (index < maxUnchangedLength && dart.test(previous.entities[$_get](index).equalsForRendering(next.entities[$_get](index)))) {
        result[$add](index);
        if (T$9.RenderingRenderCanvas()[_is](previous.entities[$_get](index))) {
          alreadyClaimedCanvases.add(index);
        }
        index = index + 1;
      }
      while (index < dart.notNull(next.entities[$length])) {
        let foundForIndex = false;
        for (let oldIndex = 0; oldIndex < dart.notNull(previous.entities[$length]); oldIndex = oldIndex + 1) {
          if (dart.test(previous.entities[$_get](oldIndex).equalsForRendering(next.entities[$_get](index))) && !dart.test(alreadyClaimedCanvases.contains(oldIndex))) {
            result[$add](oldIndex);
            if (T$9.RenderingRenderCanvas()[_is](previous.entities[$_get](oldIndex))) {
              alreadyClaimedCanvases.add(oldIndex);
            }
            foundForIndex = true;
            break;
          }
        }
        if (!foundForIndex) {
          result[$add](-1);
        }
        index = index + 1;
      }
      if (!(result[$length] == next.entities[$length])) dart.assertFailed(null, I[235], 671, 12, "result.length == next.entities.length");
      return result;
    }
    debugCleanupSvgClipPaths() {
      let t$36504;
      let parent = (t$36504 = this[_svgPathDefs], t$36504 == null ? null : _engine['DomElementExtension|get#children'](t$36504)[$single]);
      if (parent != null) {
        for (let child = js_util.getProperty(T$9.DomNodeN(), parent, "lastChild"); child != null; child = js_util.getProperty(T$9.DomNodeN(), parent, "lastChild")) {
          T$9.DomNode()[_as](parent.removeChild(child));
        }
      }
      this[_svgClipDefs][$clear]();
    }
    static removeElement(element) {
      if (element == null) dart.nullFailed(I[235], 688, 40, "element");
      element.remove();
    }
    dispose() {
      this[_viewClipChains][$keys][$toList]()[$forEach](dart.bind(this, 'disposeView'));
      this[_context] = new _engine.EmbedderFrameContext.new();
      this[_currentCompositionParams][$clear]();
      this.debugCleanupSvgClipPaths();
      this[_currentCompositionParams][$clear]();
      this[_viewClipChains][$clear]();
      this[_viewsToRecomposite].clear();
      this[_activeCompositionOrder][$clear]();
      this[_compositionOrder][$clear]();
      this[_activeRendering] = new _engine.Rendering.new();
    }
    debugClear() {
      this.dispose();
      this.rasterizer.removeOverlaysFromDom();
    }
  };
  (_engine.HtmlViewEmbedder.new = function(sceneHost, rasterizer) {
    if (sceneHost == null) dart.nullFailed(I[235], 10, 25, "sceneHost");
    if (rasterizer == null) dart.nullFailed(I[235], 10, 41, "rasterizer");
    this[_context] = new _engine.EmbedderFrameContext.new();
    this[_currentCompositionParams] = new (G$.IdentityMapOfint$EmbeddedViewParams()).new();
    this[_viewClipChains] = new (G$.IdentityMapOfint$ViewClipChain()).new();
    this[_viewsToRecomposite] = G$.LinkedHashSetOfint().new();
    this[_compositionOrder] = G.JSArrayOfint().of([]);
    this[_activeCompositionOrder] = G.JSArrayOfint().of([]);
    this[_activeRendering] = new _engine.Rendering.new();
    this[debugBoundsCanvas] = null;
    this[__HtmlViewEmbedder__frameSize] = null;
    this[__HtmlViewEmbedder__frameSize_isSet] = false;
    this[_clipPathCount] = 0;
    this[_svgPathDefs] = null;
    this[_svgClipDefs] = new (G$.IdentityMapOfint$SetOfString()).new();
    this[sceneHost$] = sceneHost;
    this[rasterizer$] = rasterizer;
    ;
  }).prototype = _engine.HtmlViewEmbedder.prototype;
  dart.addRtiResources(_engine.HtmlViewEmbedder, ["_engine|HtmlViewEmbedder"]);
  dart.setMethodSignature(_engine.HtmlViewEmbedder, () => dart.global.Object.setPrototypeOf({
    getOverlayCanvases: T$9.VoidToIterableOfCkCanvas(),
    prerollCompositeEmbeddedView: T$9.intAndEmbeddedViewParamsTovoid(),
    compositeEmbeddedView: T$9.intToCkCanvasN(),
    [_compositeWithParams]: T$9.intAndEmbeddedViewParamsTovoid(),
    [_countClips]: T$9.MutatorsStackToint(),
    [_reconstructClipViewsChain]: T$9.intAndDomElementAndDomElementToDomElement(),
    [_cleanUpClipDefs]: T$.intTovoid(),
    [_applyMutators]: T$9.EmbeddedViewParamsAndDomElementAndintTovoid(),
    [_resetAnchor]: T$9.DomElementTovoid(),
    [_ensureSvgPathDefs]: T$.VoidTovoid(),
    submitFrame: T$9.CkPictureToFutureOfvoid(),
    disposeView: T$.intTovoid(),
    [_modifyRenderingForMaxCanvases]: T$9.RenderingToRendering(),
    [_updateDomForNewRendering]: T$9.RenderingTovoid(),
    [_getElement]: T$9.RenderingEntityToDomElement(),
    [_getIndexMapFromPreviousRendering]: T$9.RenderingAndRenderingToListOfint(),
    debugCleanupSvgClipPaths: T$.VoidTovoid(),
    dispose: T$.VoidTovoid(),
    debugClear: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HtmlViewEmbedder))));
  dart.setStaticMethodSignature(_engine.HtmlViewEmbedder, () => ['removeElement']);
  dart.setGetterSignature(_engine.HtmlViewEmbedder, () => dart.global.Object.setPrototypeOf({
    debugActiveRendering: T$9.Rendering(),
    [_frameSize]: T$9.BitmapSize()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.HtmlViewEmbedder))));
  dart.setSetterSignature(_engine.HtmlViewEmbedder, () => dart.global.Object.setPrototypeOf({
    [_frameSize]: T$9.BitmapSize(),
    frameSize: T$9.BitmapSize()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.HtmlViewEmbedder))));
  dart.setStaticGetterSignature(_engine.HtmlViewEmbedder, () => ['maximumCanvases']);
  dart.setLibraryUri(_engine.HtmlViewEmbedder, I[220]);
  dart.setFieldSignature(_engine.HtmlViewEmbedder, () => dart.global.Object.setPrototypeOf({
    sceneHost: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    rasterizer: {type: T$9.ViewRasterizer(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_context]: {type: T$9.EmbedderFrameContext(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_currentCompositionParams]: {type: T$9.MapOfint$EmbeddedViewParams(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_viewClipChains]: {type: T$9.MapOfint$ViewClipChain(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_viewsToRecomposite]: {type: T$9.SetOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_compositionOrder]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_activeCompositionOrder]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_activeRendering]: {type: T$9.Rendering(), isConst: false, isFinal: false, libraryUri: I[220]},
    debugBoundsCanvas: {type: T$9.DisplayCanvasN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__HtmlViewEmbedder__frameSize]: {type: T$9.BitmapSizeN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__HtmlViewEmbedder__frameSize_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_clipPathCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_svgPathDefs]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_svgClipDefs]: {type: T$9.MapOfint$SetOfString(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HtmlViewEmbedder))));
  var _clipCount = dart.privateName(_engine, "_clipCount");
  var _root$1 = dart.privateName(_engine, "_root");
  var _slot = dart.privateName(_engine, "_slot");
  _engine.ViewClipChain = class ViewClipChain extends core.Object {
    static ['_#new#tearOff'](opts) {
      let view = opts && 'view' in opts ? opts.view : null;
      if (view == null) dart.nullFailed(I[235], 720, 38, "view");
      return new _engine.ViewClipChain.new({view: view});
    }
    get root() {
      return this[_root$1];
    }
    get slot() {
      return this[_slot];
    }
    get clipCount() {
      return this[_clipCount];
    }
    updateClipChain(opts) {
      let root = opts && 'root' in opts ? opts.root : null;
      if (root == null) dart.nullFailed(I[235], 732, 45, "root");
      let clipCount = opts && 'clipCount' in opts ? opts.clipCount : null;
      if (clipCount == null) dart.nullFailed(I[235], 732, 64, "clipCount");
      this[_root$1] = root;
      this[_clipCount] = clipCount;
    }
  };
  (_engine.ViewClipChain.new = function(opts) {
    let view = opts && 'view' in opts ? opts.view : null;
    if (view == null) dart.nullFailed(I[235], 720, 38, "view");
    this[_clipCount] = -1;
    this[_root$1] = view;
    this[_slot] = view;
    ;
  }).prototype = _engine.ViewClipChain.prototype;
  dart.addRtiResources(_engine.ViewClipChain, ["_engine|ViewClipChain"]);
  dart.setMethodSignature(_engine.ViewClipChain, () => dart.global.Object.setPrototypeOf({updateClipChain: T$9.__Tovoid$10()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ViewClipChain))));
  dart.setGetterSignature(_engine.ViewClipChain, () => dart.global.Object.setPrototypeOf({
    root: T$9.DomElement(),
    slot: T$9.DomElement(),
    clipCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ViewClipChain))));
  dart.setLibraryUri(_engine.ViewClipChain, I[220]);
  dart.setFieldSignature(_engine.ViewClipChain, () => dart.global.Object.setPrototypeOf({
    [_root$1]: {type: T$9.DomElement(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_slot]: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_clipCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ViewClipChain))));
  var offset$2 = dart.privateName(_engine, "EmbeddedViewParams.offset");
  var size$1 = dart.privateName(_engine, "EmbeddedViewParams.size");
  var mutators$ = dart.privateName(_engine, "EmbeddedViewParams.mutators");
  _engine.EmbeddedViewParams = class EmbeddedViewParams extends core.Object {
    get offset() {
      return this[offset$2];
    }
    set offset(value) {
      super.offset = value;
    }
    get size() {
      return this[size$1];
    }
    set size(value) {
      super.size = value;
    }
    get mutators() {
      return this[mutators$];
    }
    set mutators(value) {
      super.mutators = value;
    }
    static ['_#new#tearOff'](offset, size, mutators) {
      if (offset == null) dart.nullFailed(I[235], 740, 27, "offset");
      if (size == null) dart.nullFailed(I[235], 740, 40, "size");
      if (mutators == null) dart.nullFailed(I[235], 740, 60, "mutators");
      return new _engine.EmbeddedViewParams.new(offset, size, mutators);
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      return T$9.EmbeddedViewParams()[_is](other) && dart.equals(other.offset, this.offset) && dart.equals(other.size, this.size) && dart.equals(other.mutators, this.mutators);
    }
    get hashCode() {
      return core.Object.hash(this.offset, this.size, this.mutators);
    }
  };
  (_engine.EmbeddedViewParams.new = function(offset, size, mutators) {
    if (offset == null) dart.nullFailed(I[235], 740, 27, "offset");
    if (size == null) dart.nullFailed(I[235], 740, 40, "size");
    if (mutators == null) dart.nullFailed(I[235], 740, 60, "mutators");
    this[offset$2] = offset;
    this[size$1] = size;
    this[mutators$] = new _engine.MutatorsStack._copy(mutators);
    ;
  }).prototype = _engine.EmbeddedViewParams.prototype;
  dart.addRtiResources(_engine.EmbeddedViewParams, ["_engine|EmbeddedViewParams"]);
  dart.setLibraryUri(_engine.EmbeddedViewParams, I[220]);
  dart.setFieldSignature(_engine.EmbeddedViewParams, () => dart.global.Object.setPrototypeOf({
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    size: {type: T$8.Size(), isConst: false, isFinal: true, libraryUri: I[198]},
    mutators: {type: T$9.MutatorsStack(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EmbeddedViewParams))));
  dart.defineExtensionMethods(_engine.EmbeddedViewParams, ['_equals']);
  dart.defineExtensionAccessors(_engine.EmbeddedViewParams, ['hashCode']);
  _engine.MutatorType = class MutatorType extends core._Enum {
    [_enumToString]() {
      return "MutatorType." + dart.str(this[_name$]);
    }
  };
  (_engine.MutatorType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[235], 762, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[235], 762, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.MutatorType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.MutatorType.prototype;
  dart.addRtiResources(_engine.MutatorType, ["_engine|MutatorType"]);
  dart.setMethodSignature(_engine.MutatorType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MutatorType))));
  dart.setLibraryUri(_engine.MutatorType, I[220]);
  dart.setStaticFieldSignature(_engine.MutatorType, () => ['values', 'clipRect', 'clipRRect', 'clipPath', 'transform', 'opacity']);
  dart.defineLazy(_engine.MutatorType, {
    /*_engine.MutatorType.values*/get values() {
      return C[833] || CT.C833;
    },
    /*_engine.MutatorType.clipRect*/get clipRect() {
      return C[827] || CT.C827;
    },
    /*_engine.MutatorType.clipRRect*/get clipRRect() {
      return C[828] || CT.C828;
    },
    /*_engine.MutatorType.clipPath*/get clipPath() {
      return C[829] || CT.C829;
    },
    /*_engine.MutatorType.transform*/get transform() {
      return C[826] || CT.C826;
    },
    /*_engine.MutatorType.opacity*/get opacity() {
      return C[830] || CT.C830;
    }
  }, false);
  var type$5 = dart.privateName(_engine, "Mutator.type");
  var rect$ = dart.privateName(_engine, "Mutator.rect");
  var rrect$ = dart.privateName(_engine, "Mutator.rrect");
  var path$1 = dart.privateName(_engine, "Mutator.path");
  var matrix$0 = dart.privateName(_engine, "Mutator.matrix");
  var alpha$ = dart.privateName(_engine, "Mutator.alpha");
  _engine.Mutator = class Mutator extends core.Object {
    get type() {
      return this[type$5];
    }
    set type(value) {
      super.type = value;
    }
    get rect() {
      return this[rect$];
    }
    set rect(value) {
      super.rect = value;
    }
    get rrect() {
      return this[rrect$];
    }
    set rrect(value) {
      super.rrect = value;
    }
    get path() {
      return this[path$1];
    }
    set path(value) {
      super.path = value;
    }
    get matrix() {
      return this[matrix$0];
    }
    set matrix(value) {
      super.matrix = value;
    }
    get alpha() {
      return this[alpha$];
    }
    set alpha(value) {
      super.alpha = value;
    }
    static ['_#clipRect#tearOff'](rect) {
      if (rect == null) dart.nullFailed(I[235], 772, 34, "rect");
      return new _engine.Mutator.clipRect(rect);
    }
    static ['_#clipRRect#tearOff'](rrect) {
      if (rrect == null) dart.nullFailed(I[235], 774, 36, "rrect");
      return new _engine.Mutator.clipRRect(rrect);
    }
    static ['_#clipPath#tearOff'](path) {
      if (path == null) dart.nullFailed(I[235], 776, 34, "path");
      return new _engine.Mutator.clipPath(path);
    }
    static ['_#transform#tearOff'](matrix) {
      if (matrix == null) dart.nullFailed(I[235], 778, 35, "matrix");
      return new _engine.Mutator.transform(matrix);
    }
    static ['_#opacity#tearOff'](alpha) {
      if (alpha == null) dart.nullFailed(I[235], 780, 29, "alpha");
      return new _engine.Mutator.opacity(alpha);
    }
    static ['_#_#tearOff'](type, rect, rrect, path, matrix, alpha) {
      if (type == null) dart.nullFailed(I[235], 784, 10, "type");
      return new _engine.Mutator.__(type, rect, rrect, path, matrix, alpha);
    }
    get isClipType() {
      return this.type == _engine.MutatorType.clipRect || this.type == _engine.MutatorType.clipRRect || this.type == _engine.MutatorType.clipPath;
    }
    get alphaFloat() {
      return dart.nullCheck(this.alpha) / 255.0;
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!T$9.Mutator()[_is](other)) {
        return false;
      }
      let typedOther = other;
      if (this.type != typedOther.type) {
        return false;
      }
      switch (this.type) {
        case C[827] || CT.C827:
          {
            return dart.equals(this.rect, typedOther.rect);
          }
        case C[828] || CT.C828:
          {
            return dart.equals(this.rrect, typedOther.rrect);
          }
        case C[829] || CT.C829:
          {
            return dart.equals(this.path, typedOther.path);
          }
        case C[826] || CT.C826:
          {
            return dart.equals(this.matrix, typedOther.matrix);
          }
        case C[830] || CT.C830:
          {
            return this.alpha == typedOther.alpha;
          }
        default:
          {
            return false;
          }
      }
    }
    get hashCode() {
      return core.Object.hash(this.type, this.rect, this.rrect, this.path, this.matrix, this.alpha);
    }
  };
  (_engine.Mutator.clipRect = function(rect) {
    if (rect == null) dart.nullFailed(I[235], 772, 34, "rect");
    _engine.Mutator.__.call(this, _engine.MutatorType.clipRect, rect, null, null, null, null);
  }).prototype = _engine.Mutator.prototype;
  (_engine.Mutator.clipRRect = function(rrect) {
    if (rrect == null) dart.nullFailed(I[235], 774, 36, "rrect");
    _engine.Mutator.__.call(this, _engine.MutatorType.clipRRect, null, rrect, null, null, null);
  }).prototype = _engine.Mutator.prototype;
  (_engine.Mutator.clipPath = function(path) {
    if (path == null) dart.nullFailed(I[235], 776, 34, "path");
    _engine.Mutator.__.call(this, _engine.MutatorType.clipPath, null, null, path, null, null);
  }).prototype = _engine.Mutator.prototype;
  (_engine.Mutator.transform = function(matrix) {
    if (matrix == null) dart.nullFailed(I[235], 778, 35, "matrix");
    _engine.Mutator.__.call(this, _engine.MutatorType.transform, null, null, null, matrix, null);
  }).prototype = _engine.Mutator.prototype;
  (_engine.Mutator.opacity = function(alpha) {
    if (alpha == null) dart.nullFailed(I[235], 780, 29, "alpha");
    _engine.Mutator.__.call(this, _engine.MutatorType.opacity, null, null, null, null, alpha);
  }).prototype = _engine.Mutator.prototype;
  (_engine.Mutator.__ = function(type, rect, rrect, path, matrix, alpha) {
    if (type == null) dart.nullFailed(I[235], 784, 10, "type");
    this[type$5] = type;
    this[rect$] = rect;
    this[rrect$] = rrect;
    this[path$1] = path;
    this[matrix$0] = matrix;
    this[alpha$] = alpha;
    ;
  }).prototype = _engine.Mutator.prototype;
  dart.addRtiResources(_engine.Mutator, ["_engine|Mutator"]);
  dart.setGetterSignature(_engine.Mutator, () => dart.global.Object.setPrototypeOf({
    isClipType: T$.bool(),
    alphaFloat: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Mutator))));
  dart.setLibraryUri(_engine.Mutator, I[220]);
  dart.setFieldSignature(_engine.Mutator, () => dart.global.Object.setPrototypeOf({
    type: {type: T$9.MutatorType(), isConst: false, isFinal: true, libraryUri: I[220]},
    rect: {type: T$9.RectN$1(), isConst: false, isFinal: true, libraryUri: I[198]},
    rrect: {type: T$9.RRectN(), isConst: false, isFinal: true, libraryUri: I[198]},
    path: {type: T$9.PathN(), isConst: false, isFinal: true, libraryUri: I[198]},
    matrix: {type: T$9.Matrix4N(), isConst: false, isFinal: true, libraryUri: I[220]},
    alpha: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Mutator))));
  dart.defineExtensionMethods(_engine.Mutator, ['_equals']);
  dart.defineExtensionAccessors(_engine.Mutator, ['hashCode']);
  var _mutators = dart.privateName(_engine, "_mutators");
  _engine.MutatorsStack = class MutatorsStack extends G$.IterableOfMutator() {
    static ['_#new#tearOff']() {
      return new _engine.MutatorsStack.new();
    }
    static ['_#_copy#tearOff'](original) {
      if (original == null) dart.nullFailed(I[235], 844, 37, "original");
      return new _engine.MutatorsStack._copy(original);
    }
    pushClipRect(rect) {
      if (rect == null) dart.nullFailed(I[235], 849, 29, "rect");
      this[_mutators][$add](new _engine.Mutator.clipRect(rect));
    }
    pushClipRRect(rrect) {
      if (rrect == null) dart.nullFailed(I[235], 853, 31, "rrect");
      this[_mutators][$add](new _engine.Mutator.clipRRect(rrect));
    }
    pushClipPath(path) {
      if (path == null) dart.nullFailed(I[235], 857, 29, "path");
      this[_mutators][$add](new _engine.Mutator.clipPath(path));
    }
    pushTransform(matrix) {
      if (matrix == null) dart.nullFailed(I[235], 861, 30, "matrix");
      this[_mutators][$add](new _engine.Mutator.transform(matrix));
    }
    pushOpacity(alpha) {
      if (alpha == null) dart.nullFailed(I[235], 865, 24, "alpha");
      this[_mutators][$add](new _engine.Mutator.opacity(alpha));
    }
    pop() {
      this[_mutators][$removeLast]();
    }
    _equals(other) {
      if (other == null) return false;
      if (other === this) {
        return true;
      }
      return T$9.MutatorsStack()[_is](other) && dart.test(_engine.listEquals(T$9.Mutator(), other[_mutators], this[_mutators]));
    }
    get hashCode() {
      return core.Object.hashAll(this[_mutators]);
    }
    get iterator() {
      return this[_mutators][$reversed][$iterator];
    }
    get reversed() {
      return this[_mutators];
    }
  };
  (_engine.MutatorsStack.new = function() {
    this[_mutators] = G$.JSArrayOfMutator().of([]);
    this.$ti = this.$ti || T$9.MutatorsStack();
    dart.global.Object.getPrototypeOf(_engine.MutatorsStack).new.call(this);
    ;
  }).prototype = _engine.MutatorsStack.prototype;
  (_engine.MutatorsStack._copy = function(original) {
    if (original == null) dart.nullFailed(I[235], 844, 37, "original");
    this[_mutators] = G$.ListOfMutator().from(original[_mutators]);
    this.$ti = this.$ti || T$9.MutatorsStack();
    dart.global.Object.getPrototypeOf(_engine.MutatorsStack).new.call(this);
    ;
  }).prototype = _engine.MutatorsStack.prototype;
  dart.addRtiResources(_engine.MutatorsStack, ["_engine|MutatorsStack"]);
  dart.setMethodSignature(_engine.MutatorsStack, () => dart.global.Object.setPrototypeOf({
    pushClipRect: T$9.RectTovoid(),
    pushClipRRect: T$9.RRectTovoid(),
    pushClipPath: T$9.PathTovoid(),
    pushTransform: T$9.Matrix4Tovoid(),
    pushOpacity: T$.intTovoid(),
    pop: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MutatorsStack))));
  dart.setGetterSignature(_engine.MutatorsStack, () => dart.global.Object.setPrototypeOf({
    iterator: T$9.IteratorOfMutator(),
    [$iterator]: T$9.IteratorOfMutator(),
    reversed: T$9.IterableOfMutator()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.MutatorsStack))));
  dart.setLibraryUri(_engine.MutatorsStack, I[220]);
  dart.setFieldSignature(_engine.MutatorsStack, () => dart.global.Object.setPrototypeOf({[_mutators]: {type: T$9.ListOfMutator(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MutatorsStack))));
  dart.defineExtensionMethods(_engine.MutatorsStack, ['_equals']);
  dart.defineExtensionAccessors(_engine.MutatorsStack, ['hashCode', 'iterator']);
  var pictureRecordersCreatedDuringPreroll = dart.privateName(_engine, "EmbedderFrameContext.pictureRecordersCreatedDuringPreroll");
  var pictureRecorders = dart.privateName(_engine, "EmbedderFrameContext.pictureRecorders");
  var viewCount = dart.privateName(_engine, "EmbedderFrameContext.viewCount");
  _engine.EmbedderFrameContext = class EmbedderFrameContext extends core.Object {
    get pictureRecordersCreatedDuringPreroll() {
      return this[pictureRecordersCreatedDuringPreroll];
    }
    set pictureRecordersCreatedDuringPreroll(value) {
      super.pictureRecordersCreatedDuringPreroll = value;
    }
    get pictureRecorders() {
      return this[pictureRecorders];
    }
    set pictureRecorders(value) {
      super.pictureRecorders = value;
    }
    get viewCount() {
      return this[viewCount];
    }
    set viewCount(value) {
      if (value == null) dart.nullFailed(I[235], 907, 7, "viewCount");
      this[viewCount] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.EmbedderFrameContext.new();
    }
  };
  (_engine.EmbedderFrameContext.new = function() {
    this[pictureRecordersCreatedDuringPreroll] = G$.JSArrayOfCkPictureRecorder().of([]);
    this[pictureRecorders] = G$.JSArrayOfCkPictureRecorder().of([]);
    this[viewCount] = 0;
    ;
  }).prototype = _engine.EmbedderFrameContext.prototype;
  dart.addRtiResources(_engine.EmbedderFrameContext, ["_engine|EmbedderFrameContext"]);
  dart.setLibraryUri(_engine.EmbedderFrameContext, I[220]);
  dart.setFieldSignature(_engine.EmbedderFrameContext, () => dart.global.Object.setPrototypeOf({
    pictureRecordersCreatedDuringPreroll: {type: T$9.ListOfCkPictureRecorder(), isConst: false, isFinal: true, libraryUri: I[11]},
    pictureRecorders: {type: T$9.ListOfCkPictureRecorder(), isConst: false, isFinal: true, libraryUri: I[11]},
    viewCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EmbedderFrameContext))));
  var registeredFallbackFonts = dart.privateName(_engine, "SkiaFontCollection.registeredFallbackFonts");
  var familyToFontMap = dart.privateName(_engine, "SkiaFontCollection.familyToFontMap");
  var skFontCollection = dart.privateName(_engine, "SkiaFontCollection.skFontCollection");
  var _downloadedFontFamilies = dart.privateName(_engine, "_downloadedFontFamilies");
  var __SkiaFontCollection_fontFallbackManager = dart.privateName(_engine, "_#SkiaFontCollection#fontFallbackManager");
  var __SkiaFontCollection_fontFallbackManager_isSet = dart.privateName(_engine, "_#SkiaFontCollection#fontFallbackManager#isSet");
  var _unregisteredFonts = dart.privateName(_engine, "_unregisteredFonts");
  var _registeredFonts = dart.privateName(_engine, "_registeredFonts");
  var _fontProvider = dart.privateName(_engine, "_fontProvider");
  var _registerWithFontProvider = dart.privateName(_engine, "_registerWithFontProvider");
  var _readActualFamilyName = dart.privateName(_engine, "_readActualFamilyName");
  var _downloadFont = dart.privateName(_engine, "_downloadFont");
  _engine.SkiaFontCollection = class SkiaFontCollection extends core.Object {
    get registeredFallbackFonts() {
      return this[registeredFallbackFonts];
    }
    set registeredFallbackFonts(value) {
      super.registeredFallbackFonts = value;
    }
    get familyToFontMap() {
      return this[familyToFontMap];
    }
    set familyToFontMap(value) {
      super.familyToFontMap = value;
    }
    get skFontCollection() {
      return this[skFontCollection];
    }
    set skFontCollection(value) {
      this[skFontCollection] = value;
    }
    get fontFallbackManager() {
      let t$36506;
      if (!dart.test(this[__SkiaFontCollection_fontFallbackManager_isSet])) {
        this[__SkiaFontCollection_fontFallbackManager] = _engine.FontFallbackManager.new(new _engine.SkiaFallbackRegistry.new(this));
        this[__SkiaFontCollection_fontFallbackManager_isSet] = true;
      }
      t$36506 = this[__SkiaFontCollection_fontFallbackManager];
      return t$36506;
    }
    set fontFallbackManager(fontFallbackManager$35param) {
      if (fontFallbackManager$35param == null) dart.nullFailed(I[236], 21, 28, "fontFallbackManager#param");
      this[__SkiaFontCollection_fontFallbackManager_isSet] = true;
      this[__SkiaFontCollection_fontFallbackManager] = fontFallbackManager$35param;
    }
    get debugRegisteredFonts() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_registeredFonts];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[236], 38, 12, "() {\n      result = _registeredFonts;\n      return true;\n    }()");
      return result;
    }
    [_registerWithFontProvider]() {
      let t$36506;
      if (this[_fontProvider] != null) {
        dart.nullCheck(this[_fontProvider]).delete();
        this[_fontProvider] = null;
        t$36506 = this.skFontCollection;
        t$36506 == null ? null : t$36506.delete();
        this.skFontCollection = null;
      }
      this[_fontProvider] = T$9.TypefaceFontProvider()[_as](js_util.getProperty(T$9.TypefaceFontProviderNamespace(), _engine.canvasKit, "TypefaceFontProvider").Make());
      this.skFontCollection = T$9.SkFontCollection()[_as](js_util.getProperty(T$9.FontCollectionNamespace(), _engine.canvasKit, "FontCollection").Make());
      dart.nullCheck(this.skFontCollection).enableFontFallback();
      dart.nullCheck(this.skFontCollection).setDefaultFontManager(this[_fontProvider]);
      this.familyToFontMap[$clear]();
      for (let font of this[_registeredFonts]) {
        _engine['TypefaceFontProviderExtension|registerFont'](dart.nullCheck(this[_fontProvider]), font.bytes, font.family);
        this.familyToFontMap[$putIfAbsent](font.family, dart.fn(() => G$.JSArrayOfSkFont().of([]), T$9.VoidToListOfSkFont()))[$add](T$9.SkFont()[_as](new dart.global.window.flutterCanvasKit.Font(font.typeface)));
      }
      for (let font of this.registeredFallbackFonts) {
        _engine['TypefaceFontProviderExtension|registerFont'](dart.nullCheck(this[_fontProvider]), font.bytes, font.family);
        this.familyToFontMap[$putIfAbsent](font.family, dart.fn(() => G$.JSArrayOfSkFont().of([]), T$9.VoidToListOfSkFont()))[$add](T$9.SkFont()[_as](new dart.global.window.flutterCanvasKit.Font(font.typeface)));
      }
    }
    loadFontFromList(list, opts) {
      if (list == null) dart.nullFailed(I[236], 76, 43, "list");
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      return async.async(T$.bool(), (function* loadFontFromList() {
        if (fontFamily == null) {
          fontFamily = this[_readActualFamilyName](list);
          if (fontFamily == null) {
            _engine.printWarning("Failed to read font family name. Aborting font load.");
            return false;
          }
        }
        yield async.awaitWithTypeCheck(T$1.FutureOfvoid(), _engine.renderer.initialize());
        let typeface = _engine['SkTypefaceFactoryExtension|MakeFreeTypeFaceFromData'](js_util.getProperty(T$9.SkTypefaceFactory(), _engine.canvasKit, "Typeface"), list[$buffer]);
        if (typeface != null) {
          this[_registeredFonts][$add](new _engine.RegisteredFont.new(list, fontFamily, typeface));
          this[_registerWithFontProvider]();
        } else {
          _engine.printWarning("Failed to parse font family \"" + dart.str(fontFamily) + "\"");
          return false;
        }
        return true;
      }).bind(this));
    }
    loadAssetFonts(manifest) {
      if (manifest == null) dart.nullFailed(I[236], 102, 56, "manifest");
      return async.async(T$9.AssetFontsResult(), (function* loadAssetFonts() {
        let pendingDownloads = G$.JSArrayOfFutureOfFontDownloadResult().of([]);
        let loadedRoboto = false;
        for (let family of manifest.families) {
          if (family.name === "Roboto") {
            loadedRoboto = true;
          }
          for (let fontAsset of family.fontAssets) {
            let url = ui_web.assetManager.getAssetUrl(fontAsset.asset);
            pendingDownloads[$add](this[_downloadFont](fontAsset.asset, url, family.name));
          }
        }
        if (!loadedRoboto) {
          pendingDownloads[$add](this[_downloadFont]("Roboto", _engine._robotoUrl, "Roboto"));
        }
        let fontFailures = new (G$.IdentityMapOfString$FontLoadError()).new();
        let downloadedFonts = G$.JSArrayOfRecOfStringAndUnregisteredFont().of([]);
        for (let result of (yield async.Future.wait(T$9.FontDownloadResult(), pendingDownloads))) {
          if (result.font != null) {
            downloadedFonts[$add](dart.recordLiteral("2;", 2, void 0, [result.assetName, dart.nullCheck(result.font)]));
          } else {
            fontFailures[$_set](result.assetName, dart.nullCheck(result.error));
          }
        }
        yield async.awaitWithTypeCheck(T$1.FutureOfvoid(), _engine.renderer.initialize());
        let loadedFonts = G.JSArrayOfString().of([]);
        for (let t$36507 of downloadedFonts) {
          let assetName = null;
          let unregisteredFont = null;
          {
            let t$36$350$350 = t$36507;
            let t$36$350$351 = null;
            let t$36$350$351$35isSet = false;
            let t$36$350$352 = null;
            let t$36$350$352$35isSet = false;
            if (!(typeof (t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1)) == 'string' && (assetName = t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1), true) && T$9.UnregisteredFont()[_is](t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2)) && (unregisteredFont = t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2), true))) dart.throw(new core.StateError.new("Pattern matching error"));
          }
          let bytes = unregisteredFont.bytes[$asUint8List]();
          let typeface = _engine['SkTypefaceFactoryExtension|MakeFreeTypeFaceFromData'](js_util.getProperty(T$9.SkTypefaceFactory(), _engine.canvasKit, "Typeface"), bytes[$buffer]);
          if (typeface != null) {
            loadedFonts[$add](assetName);
            this[_registeredFonts][$add](new _engine.RegisteredFont.new(bytes, unregisteredFont.family, typeface));
          } else {
            _engine.printWarning("Failed to load font " + dart.str(unregisteredFont.family) + " at " + dart.str(unregisteredFont.url));
            _engine.printWarning("Verify that " + dart.str(unregisteredFont.url) + " contains a valid font.");
            fontFailures[$_set](assetName, new _engine.FontInvalidDataError.new(unregisteredFont.url));
          }
        }
        this.registerDownloadedFonts();
        return new _engine.AssetFontsResult.new(loadedFonts, fontFailures);
      }).bind(this));
    }
    registerDownloadedFonts() {
      function makeRegisterFont(buffer, url, family) {
        if (buffer == null) dart.nullFailed(I[236], 155, 49, "buffer");
        if (url == null) dart.nullFailed(I[236], 155, 64, "url");
        if (family == null) dart.nullFailed(I[236], 155, 76, "family");
        let bytes = buffer[$asUint8List]();
        let typeface = _engine['SkTypefaceFactoryExtension|MakeFreeTypeFaceFromData'](js_util.getProperty(T$9.SkTypefaceFactory(), _engine.canvasKit, "Typeface"), bytes[$buffer]);
        if (typeface != null) {
          return new _engine.RegisteredFont.new(bytes, family, typeface);
        } else {
          _engine.printWarning("Failed to load font " + dart.str(family) + " at " + dart.str(url));
          _engine.printWarning("Verify that " + dart.str(url) + " contains a valid font.");
          return null;
        }
      }
      dart.fn(makeRegisterFont, T$9.ByteBufferAndStringAndStringToRegisteredFontN());
      for (let unregisteredFont of this[_unregisteredFonts]) {
        let registeredFont = makeRegisterFont(unregisteredFont.bytes, unregisteredFont.url, unregisteredFont.family);
        if (registeredFont != null) {
          this[_registeredFonts][$add](registeredFont);
        }
      }
      this[_unregisteredFonts][$clear]();
      this[_registerWithFontProvider]();
    }
    [_downloadFont](assetName, url, fontFamily) {
      if (assetName == null) dart.nullFailed(I[236], 184, 12, "assetName");
      if (url == null) dart.nullFailed(I[236], 185, 12, "url");
      if (fontFamily == null) dart.nullFailed(I[236], 186, 12, "fontFamily");
      return async.async(T$9.FontDownloadResult(), (function* _downloadFont() {
        let fontData = null;
        try {
          let response = (yield _engine.httpFetch(url));
          if (!dart.test(response.hasPayload)) {
            _engine.printWarning("Font family " + dart.str(fontFamily) + " not found (404) at " + dart.str(url));
            return new _engine.FontDownloadResult.fromError(assetName, new _engine.FontNotFoundError.new(url));
          }
          fontData = (yield _engine['HttpFetchResponseExtension|asByteBuffer'](response));
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](e)) {
            _engine.printWarning("Failed to load font " + dart.str(fontFamily) + " at " + dart.str(url));
            _engine.printWarning(dart.toString(e));
            return new _engine.FontDownloadResult.fromError(assetName, new _engine.FontDownloadError.new(url, e));
          } else
            throw t$36$35e;
        }
        this[_downloadedFontFamilies].add(fontFamily);
        return new _engine.FontDownloadResult.fromFont(assetName, new _engine.UnregisteredFont.new(fontData, url, fontFamily));
      }).bind(this));
    }
    [_readActualFamilyName](bytes) {
      if (bytes == null) dart.nullFailed(I[236], 210, 43, "bytes");
      let tmpFontMgr = dart.nullCheck(_engine['SkFontMgrNamespaceExtension|FromData'](js_util.getProperty(T$9.SkFontMgrNamespace(), _engine.canvasKit, "FontMgr"), G.JSArrayOfUint8List().of([bytes])));
      let actualFamily = _engine['SkFontMgrExtension|getFamilyName'](tmpFontMgr, 0.0);
      tmpFontMgr.delete();
      return actualFamily;
    }
    clear() {
    }
    debugResetFallbackFonts() {
      this.fontFallbackManager = _engine.FontFallbackManager.new(new _engine.SkiaFallbackRegistry.new(this));
      this.registeredFallbackFonts[$clear]();
    }
    static ['_#new#tearOff']() {
      return new _engine.SkiaFontCollection.new();
    }
  };
  (_engine.SkiaFontCollection.new = function() {
    this[_downloadedFontFamilies] = G$.LinkedHashSetOfString().new();
    this[__SkiaFontCollection_fontFallbackManager] = null;
    this[__SkiaFontCollection_fontFallbackManager_isSet] = false;
    this[_unregisteredFonts] = G$.JSArrayOfUnregisteredFont().of([]);
    this[_registeredFonts] = G$.JSArrayOfRegisteredFont().of([]);
    this[registeredFallbackFonts] = G$.JSArrayOfRegisteredFont().of([]);
    this[familyToFontMap] = new (G$.IdentityMapOfString$ListOfSkFont()).new();
    this[_fontProvider] = null;
    this[skFontCollection] = null;
    ;
  }).prototype = _engine.SkiaFontCollection.prototype;
  dart.addRtiResources(_engine.SkiaFontCollection, ["_engine|SkiaFontCollection", "_engine|FlutterFontCollection"]);
  dart.setMethodSignature(_engine.SkiaFontCollection, () => dart.global.Object.setPrototypeOf({
    [_registerWithFontProvider]: T$.VoidTovoid(),
    loadFontFromList: T$9.Uint8List__ToFutureOfbool(),
    loadAssetFonts: T$9.FontManifestToFutureOfAssetFontsResult(),
    registerDownloadedFonts: T$.VoidTovoid(),
    [_downloadFont]: T$9.StringAndStringAndStringToFutureOfFontDownloadResult(),
    [_readActualFamilyName]: T$9.Uint8ListToStringN(),
    clear: T$.VoidTovoid(),
    debugResetFallbackFonts: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SkiaFontCollection))));
  dart.setGetterSignature(_engine.SkiaFontCollection, () => dart.global.Object.setPrototypeOf({
    fontFallbackManager: T$9.FontFallbackManager(),
    debugRegisteredFonts: T$9.ListNOfRegisteredFont()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SkiaFontCollection))));
  dart.setSetterSignature(_engine.SkiaFontCollection, () => dart.global.Object.setPrototypeOf({fontFallbackManager: T$9.FontFallbackManager()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.SkiaFontCollection))));
  dart.setLibraryUri(_engine.SkiaFontCollection, I[220]);
  dart.setFieldSignature(_engine.SkiaFontCollection, () => dart.global.Object.setPrototypeOf({
    [_downloadedFontFamilies]: {type: T$6.SetOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    [__SkiaFontCollection_fontFallbackManager]: {type: T$9.FontFallbackManagerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__SkiaFontCollection_fontFallbackManager_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_unregisteredFonts]: {type: T$9.ListOfUnregisteredFont(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_registeredFonts]: {type: T$9.ListOfRegisteredFont(), isConst: false, isFinal: true, libraryUri: I[11]},
    registeredFallbackFonts: {type: T$9.ListOfRegisteredFont(), isConst: false, isFinal: true, libraryUri: I[11]},
    familyToFontMap: {type: T$9.MapOfString$ListOfSkFont(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fontProvider]: {type: T$9.TypefaceFontProviderN(), isConst: false, isFinal: false, libraryUri: I[220]},
    skFontCollection: {type: T$9.SkFontCollectionN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SkiaFontCollection))));
  var family$ = dart.privateName(_engine, "RegisteredFont.family");
  var bytes$ = dart.privateName(_engine, "RegisteredFont.bytes");
  var typeface$ = dart.privateName(_engine, "RegisteredFont.typeface");
  _engine.RegisteredFont = class RegisteredFont extends core.Object {
    get family() {
      return this[family$];
    }
    set family(value) {
      super.family = value;
    }
    get bytes() {
      return this[bytes$];
    }
    set bytes(value) {
      super.bytes = value;
    }
    get typeface() {
      return this[typeface$];
    }
    set typeface(value) {
      super.typeface = value;
    }
    static ['_#new#tearOff'](bytes, family, typeface) {
      if (bytes == null) dart.nullFailed(I[236], 233, 23, "bytes");
      if (family == null) dart.nullFailed(I[236], 233, 35, "family");
      if (typeface == null) dart.nullFailed(I[236], 233, 48, "typeface");
      return new _engine.RegisteredFont.new(bytes, family, typeface);
    }
  };
  (_engine.RegisteredFont.new = function(bytes, family, typeface) {
    if (bytes == null) dart.nullFailed(I[236], 233, 23, "bytes");
    if (family == null) dart.nullFailed(I[236], 233, 35, "family");
    if (typeface == null) dart.nullFailed(I[236], 233, 48, "typeface");
    this[bytes$] = bytes;
    this[family$] = family;
    this[typeface$] = typeface;
    let skFont = T$9.SkFont()[_as](new dart.global.window.flutterCanvasKit.Font(this.typeface));
    _engine['SkFontExtension|getGlyphBounds'](skFont, G.JSArrayOfint().of([0]), null, null);
  }).prototype = _engine.RegisteredFont.prototype;
  dart.addRtiResources(_engine.RegisteredFont, ["_engine|RegisteredFont"]);
  dart.setLibraryUri(_engine.RegisteredFont, I[220]);
  dart.setFieldSignature(_engine.RegisteredFont, () => dart.global.Object.setPrototypeOf({
    family: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    bytes: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]},
    typeface: {type: T$9.SkTypeface(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RegisteredFont))));
  var bytes$0 = dart.privateName(_engine, "UnregisteredFont.bytes");
  var url$ = dart.privateName(_engine, "UnregisteredFont.url");
  var family$0 = dart.privateName(_engine, "UnregisteredFont.family");
  _engine.UnregisteredFont = class UnregisteredFont extends core.Object {
    get bytes() {
      return this[bytes$0];
    }
    set bytes(value) {
      super.bytes = value;
    }
    get url() {
      return this[url$];
    }
    set url(value) {
      super.url = value;
    }
    get family() {
      return this[family$0];
    }
    set family(value) {
      super.family = value;
    }
    static ['_#new#tearOff'](bytes, url, family) {
      if (bytes == null) dart.nullFailed(I[236], 253, 31, "bytes");
      if (url == null) dart.nullFailed(I[236], 253, 43, "url");
      if (family == null) dart.nullFailed(I[236], 253, 53, "family");
      return new _engine.UnregisteredFont.new(bytes, url, family);
    }
  };
  (_engine.UnregisteredFont.new = function(bytes, url, family) {
    if (bytes == null) dart.nullFailed(I[236], 253, 31, "bytes");
    if (url == null) dart.nullFailed(I[236], 253, 43, "url");
    if (family == null) dart.nullFailed(I[236], 253, 53, "family");
    this[bytes$0] = bytes;
    this[url$] = url;
    this[family$0] = family;
    ;
  }).prototype = _engine.UnregisteredFont.prototype;
  dart.addRtiResources(_engine.UnregisteredFont, ["_engine|UnregisteredFont"]);
  dart.setLibraryUri(_engine.UnregisteredFont, I[220]);
  dart.setFieldSignature(_engine.UnregisteredFont, () => dart.global.Object.setPrototypeOf({
    bytes: {type: T$0.ByteBuffer(), isConst: false, isFinal: true, libraryUri: I[43]},
    url: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    family: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.UnregisteredFont))));
  var assetName$ = dart.privateName(_engine, "FontDownloadResult.assetName");
  var font$ = dart.privateName(_engine, "FontDownloadResult.font");
  var error$0 = dart.privateName(_engine, "FontDownloadResult.error");
  _engine.FontDownloadResult = class FontDownloadResult extends core.Object {
    get assetName() {
      return this[assetName$];
    }
    set assetName(value) {
      super.assetName = value;
    }
    get font() {
      return this[font$];
    }
    set font(value) {
      super.font = value;
    }
    get error() {
      return this[error$0];
    }
    set error(value) {
      super.error = value;
    }
    static ['_#fromFont#tearOff'](assetName, font) {
      if (assetName == null) dart.nullFailed(I[236], 260, 36, "assetName");
      if (font == null) dart.nullFailed(I[236], 260, 69, "font");
      return new _engine.FontDownloadResult.fromFont(assetName, font);
    }
    static ['_#fromError#tearOff'](assetName, error) {
      if (assetName == null) dart.nullFailed(I[236], 261, 37, "assetName");
      if (error == null) dart.nullFailed(I[236], 261, 67, "error");
      return new _engine.FontDownloadResult.fromError(assetName, error);
    }
  };
  (_engine.FontDownloadResult.fromFont = function(assetName, font) {
    if (assetName == null) dart.nullFailed(I[236], 260, 36, "assetName");
    if (font == null) dart.nullFailed(I[236], 260, 69, "font");
    this[assetName$] = assetName;
    this[font$] = font;
    this[error$0] = null;
    ;
  }).prototype = _engine.FontDownloadResult.prototype;
  (_engine.FontDownloadResult.fromError = function(assetName, error) {
    if (assetName == null) dart.nullFailed(I[236], 261, 37, "assetName");
    if (error == null) dart.nullFailed(I[236], 261, 67, "error");
    this[assetName$] = assetName;
    this[error$0] = error;
    this[font$] = null;
    ;
  }).prototype = _engine.FontDownloadResult.prototype;
  dart.addRtiResources(_engine.FontDownloadResult, ["_engine|FontDownloadResult"]);
  dart.setLibraryUri(_engine.FontDownloadResult, I[220]);
  dart.setFieldSignature(_engine.FontDownloadResult, () => dart.global.Object.setPrototypeOf({
    assetName: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    font: {type: T$9.UnregisteredFontN(), isConst: false, isFinal: true, libraryUri: I[220]},
    error: {type: T$9.FontLoadErrorN(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FontDownloadResult))));
  var fontCollection$ = dart.privateName(_engine, "SkiaFallbackRegistry.fontCollection");
  _engine.SkiaFallbackRegistry = class SkiaFallbackRegistry extends core.Object {
    get fontCollection() {
      return this[fontCollection$];
    }
    set fontCollection(value) {
      if (value == null) dart.nullFailed(I[236], 271, 22, "fontCollection");
      this[fontCollection$] = value;
    }
    static ['_#new#tearOff'](fontCollection) {
      if (fontCollection == null) dart.nullFailed(I[236], 269, 29, "fontCollection");
      return new _engine.SkiaFallbackRegistry.new(fontCollection);
    }
    getMissingCodePoints(codeUnits, fontFamilies) {
      let t$36513;
      if (codeUnits == null) dart.nullFailed(I[236], 274, 44, "codeUnits");
      if (fontFamilies == null) dart.nullFailed(I[236], 274, 68, "fontFamilies");
      let fonts = G$.JSArrayOfSkFont().of([]);
      for (let font of fontFamilies) {
        let typefacesForFamily = this.fontCollection.familyToFontMap[$_get](font);
        if (typefacesForFamily != null) {
          fonts[$addAll](typefacesForFamily);
        }
      }
      let codePointsSupported = G$.ListOfbool().filled(codeUnits[$length], false);
      let testString = core.String.fromCharCodes(codeUnits);
      for (let font of fonts) {
        let glyphs = _engine['SkFontExtension|getGlyphIDs'](font, testString);
        if (!(glyphs[$length] == codePointsSupported[$length])) dart.assertFailed(null, I[236], 287, 14, "glyphs.length == codePointsSupported.length");
        for (let i = 0; i < dart.notNull(glyphs[$length]); i = i + 1) {
          t$36513 = i;
          codePointsSupported[$_set](t$36513, !!(dart.notNull(codePointsSupported[$_get](t$36513)) | glyphs[$_get](i) !== 0));
        }
      }
      let missingCodeUnits = G.JSArrayOfint().of([]);
      for (let i = 0; i < dart.notNull(codePointsSupported[$length]); i = i + 1) {
        if (!dart.test(codePointsSupported[$_get](i))) {
          missingCodeUnits[$add](codeUnits[$_get](i));
        }
      }
      return missingCodeUnits;
    }
    loadFallbackFont(familyName, url) {
      if (familyName == null) dart.nullFailed(I[236], 303, 40, "familyName");
      if (url == null) dart.nullFailed(I[236], 303, 59, "url");
      return async.async(T$.void(), (function* loadFallbackFont() {
        let buffer = (yield _engine.httpFetchByteBuffer(url));
        let typeface = _engine['SkTypefaceFactoryExtension|MakeFreeTypeFaceFromData'](js_util.getProperty(T$9.SkTypefaceFactory(), _engine.canvasKit, "Typeface"), buffer);
        if (typeface == null) {
          _engine.printWarning("Failed to parse fallback font " + dart.str(familyName) + " as a font.");
          return;
        }
        this.fontCollection.registeredFallbackFonts[$add](new _engine.RegisteredFont.new(buffer[$asUint8List](), familyName, typeface));
      }).bind(this));
    }
    updateFallbackFontFamilies(families) {
      if (families == null) dart.nullFailed(I[236], 317, 48, "families");
      this.fontCollection.registerDownloadedFonts();
    }
  };
  (_engine.SkiaFallbackRegistry.new = function(fontCollection) {
    if (fontCollection == null) dart.nullFailed(I[236], 269, 29, "fontCollection");
    this[fontCollection$] = fontCollection;
    ;
  }).prototype = _engine.SkiaFallbackRegistry.prototype;
  dart.addRtiResources(_engine.SkiaFallbackRegistry, ["_engine|SkiaFallbackRegistry", "_engine|FallbackFontRegistry"]);
  dart.setMethodSignature(_engine.SkiaFallbackRegistry, () => dart.global.Object.setPrototypeOf({
    getMissingCodePoints: T$9.ListOfintAndListOfStringToListOfint(),
    loadFallbackFont: T$9.StringAndStringToFutureOfvoid(),
    updateFallbackFontFamilies: T$9.ListOfStringTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SkiaFallbackRegistry))));
  dart.setLibraryUri(_engine.SkiaFallbackRegistry, I[220]);
  dart.setFieldSignature(_engine.SkiaFallbackRegistry, () => dart.global.Object.setPrototypeOf({fontCollection: {type: T$9.SkiaFontCollection(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SkiaFallbackRegistry))));
  var _message$2 = dart.privateName(_engine, "_message");
  _engine.ImageCodecException = class ImageCodecException extends core.Object {
    static ['_#new#tearOff'](_message) {
      if (_message == null) dart.nullFailed(I[237], 143, 28, "_message");
      return new _engine.ImageCodecException.new(_message);
    }
    toString() {
      return "ImageCodecException: " + dart.str(this[_message$2]);
    }
  };
  (_engine.ImageCodecException.new = function(_message) {
    if (_message == null) dart.nullFailed(I[237], 143, 28, "_message");
    this[_message$2] = _message;
    ;
  }).prototype = _engine.ImageCodecException.prototype;
  dart.addRtiResources(_engine.ImageCodecException, ["_engine|ImageCodecException", "core|Exception"]);
  dart.setLibraryUri(_engine.ImageCodecException, I[220]);
  dart.setFieldSignature(_engine.ImageCodecException, () => dart.global.Object.setPrototypeOf({[_message$2]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ImageCodecException))));
  dart.defineExtensionMethods(_engine.ImageCodecException, ['toString']);
  var videoFrame$ = dart.privateName(_engine, "CkImage.videoFrame");
  var __CkImage__debugStackTrace = dart.privateName(_engine, "_#CkImage#_debugStackTrace");
  var __CkImage__debugStackTrace_isSet = dart.privateName(_engine, "_#CkImage#_debugStackTrace#isSet");
  var __CkImage_box = dart.privateName(_engine, "_#CkImage#box");
  var __CkImage_box_isSet = dart.privateName(_engine, "_#CkImage#box#isSet");
  var _disposed = dart.privateName(_engine, "_disposed");
  var _init = dart.privateName(_engine, "_init");
  var _debugStackTrace = dart.privateName(_engine, "_debugStackTrace");
  var _debugCheckIsNotDisposed = dart.privateName(_engine, "_debugCheckIsNotDisposed");
  var _readPixelsFromSkImage = dart.privateName(_engine, "_readPixelsFromSkImage");
  _engine.CkImage = class CkImage extends core.Object {
    get videoFrame() {
      return this[videoFrame$];
    }
    set videoFrame(value) {
      this[videoFrame$] = value;
    }
    static ['_#new#tearOff'](skImage, opts) {
      if (skImage == null) dart.nullFailed(I[237], 212, 19, "skImage");
      let videoFrame = opts && 'videoFrame' in opts ? opts.videoFrame : null;
      return new _engine.CkImage.new(skImage, {videoFrame: videoFrame});
    }
    static ['_#cloneOf#tearOff'](box, opts) {
      if (box == null) dart.nullFailed(I[237], 217, 24, "box");
      let videoFrame = opts && 'videoFrame' in opts ? opts.videoFrame : null;
      return new _engine.CkImage.cloneOf(box, {videoFrame: videoFrame});
    }
    [_init]() {
      let t$36513;
      if (!dart.test(dart.fn(() => {
        this[_debugStackTrace] = core.StackTrace.current;
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[237], 223, 12, "() {\n      _debugStackTrace = StackTrace.current;\n      return true;\n    }()");
      t$36513 = ui.Image.onCreate;
      t$36513 == null ? null : t$36513(this);
    }
    get debugStackTrace() {
      return this[_debugStackTrace];
    }
    get [_debugStackTrace]() {
      let t$36513;
      return dart.test(this[__CkImage__debugStackTrace_isSet]) ? (t$36513 = this[__CkImage__debugStackTrace], t$36513) : dart.throw(new _internal.LateError.fieldNI("_debugStackTrace"));
    }
    set [_debugStackTrace](_debugStackTrace$35param) {
      if (_debugStackTrace$35param == null) dart.nullFailed(I[237], 232, 19, "_debugStackTrace#param");
      this[__CkImage__debugStackTrace_isSet] = true;
      this[__CkImage__debugStackTrace] = _debugStackTrace$35param;
    }
    get box() {
      let t$36513;
      return dart.test(this[__CkImage_box_isSet]) ? (t$36513 = this[__CkImage_box], t$36513) : dart.throw(new _internal.LateError.fieldNI("box"));
    }
    set box(box$35param) {
      if (box$35param == null) dart.nullFailed(I[237], 236, 43, "box#param");
      if (dart.test(this[__CkImage_box_isSet]))
        dart.throw(new _internal.LateError.fieldAI("box"));
      else {
        this[__CkImage_box_isSet] = true;
        this[__CkImage_box] = box$35param;
      }
    }
    get skImage() {
      return this.box.nativeObject;
    }
    [_debugCheckIsNotDisposed]() {
      if (!!dart.test(this[_disposed])) dart.assertFailed("This image has been disposed.", I[237], 255, 12, "!_disposed");
      return true;
    }
    dispose() {
      let t$36513;
      if (!!dart.test(this[_disposed])) dart.assertFailed("Cannot dispose an image that has already been disposed.", I[237], 262, 7, "!_disposed");
      t$36513 = ui.Image.onDispose;
      t$36513 == null ? null : t$36513(this);
      this[_disposed] = true;
      this.box.unref(this);
    }
    get debugDisposed() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_disposed];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[237], 273, 12, "() {\n      result = _disposed;\n      return true;\n    }()");
      if (result != null) {
        return dart.nullCheck(result);
      }
      dart.throw(new core.StateError.new("Image.debugDisposed is only available when asserts are enabled."));
    }
    clone() {
      let t$36513;
      if (!dart.test(this[_debugCheckIsNotDisposed]())) dart.assertFailed(null, I[237], 288, 12, "_debugCheckIsNotDisposed()");
      return new _engine.CkImage.cloneOf(this.box, {videoFrame: (t$36513 = this.videoFrame, t$36513 == null ? null : T$9.VideoFrame()[_as](t$36513.clone()))});
    }
    isCloneOf(other) {
      if (other == null) dart.nullFailed(I[237], 293, 27, "other");
      if (!dart.test(this[_debugCheckIsNotDisposed]())) dart.assertFailed(null, I[237], 294, 12, "_debugCheckIsNotDisposed()");
      return T$9.CkImage()[_is](other) && dart.test(_engine['SkImageExtension|isAliasOf'](other.skImage, this.skImage));
    }
    debugGetOpenHandleStackTraces() {
      return this.box.debugGetStackTraces();
    }
    get width() {
      if (!dart.test(this[_debugCheckIsNotDisposed]())) dart.assertFailed(null, I[237], 304, 12, "_debugCheckIsNotDisposed()");
      return _engine['SkImageExtension|width'](this.skImage)[$toInt]();
    }
    get height() {
      if (!dart.test(this[_debugCheckIsNotDisposed]())) dart.assertFailed(null, I[237], 310, 12, "_debugCheckIsNotDisposed()");
      return _engine['SkImageExtension|height'](this.skImage)[$toInt]();
    }
    toByteData(opts) {
      let format = opts && 'format' in opts ? opts.format : C[601] || CT.C601;
      if (format == null) dart.nullFailed(I[237], 316, 24, "format");
      if (!dart.test(this[_debugCheckIsNotDisposed]())) dart.assertFailed(null, I[237], 318, 12, "_debugCheckIsNotDisposed()");
      if (this.videoFrame != null && _engine['VideoFrameExtension|get#format'](dart.nullCheck(this.videoFrame)) !== "I420" && _engine['VideoFrameExtension|get#format'](dart.nullCheck(this.videoFrame)) !== "I444" && _engine['VideoFrameExtension|get#format'](dart.nullCheck(this.videoFrame)) !== "I422") {
        return _engine.readPixelsFromVideoFrame(dart.nullCheck(this.videoFrame), format);
      } else {
        return this[_readPixelsFromSkImage](format);
      }
    }
    get colorSpace() {
      return ui.ColorSpace.sRGB;
    }
    [_readPixelsFromSkImage](format) {
      if (format == null) dart.nullFailed(I[237], 331, 62, "format");
      let alphaType = format == ui.ImageByteFormat.rawStraightRgba ? js_util.getProperty(T$9.SkAlphaType(), js_util.getProperty(T$9.SkAlphaTypeEnum(), _engine.canvasKit, "AlphaType"), "Unpremul") : js_util.getProperty(T$9.SkAlphaType(), js_util.getProperty(T$9.SkAlphaTypeEnum(), _engine.canvasKit, "AlphaType"), "Premul");
      let data = _engine.CkImage._encodeImage({skImage: this.skImage, format: format, alphaType: alphaType, colorType: js_util.getProperty(T$9.SkColorType(), js_util.getProperty(T$9.SkColorTypeEnum(), _engine.canvasKit, "ColorType"), "RGBA_8888"), colorSpace: dart.jsInteropNullCheck(dart.global.window.flutterCanvasKit.ColorSpace.SRGB)});
      if (data == null) {
        return G$.FutureOfByteData().error("Failed to encode the image into bytes.");
      } else {
        return G$.FutureOfByteData().value(data);
      }
    }
    static _encodeImage(opts) {
      let t$36513;
      let skImage = opts && 'skImage' in opts ? opts.skImage : null;
      if (skImage == null) dart.nullFailed(I[237], 348, 22, "skImage");
      let format = opts && 'format' in opts ? opts.format : null;
      if (format == null) dart.nullFailed(I[237], 349, 33, "format");
      let alphaType = opts && 'alphaType' in opts ? opts.alphaType : null;
      if (alphaType == null) dart.nullFailed(I[237], 350, 26, "alphaType");
      let colorType = opts && 'colorType' in opts ? opts.colorType : null;
      if (colorType == null) dart.nullFailed(I[237], 351, 26, "colorType");
      let colorSpace = opts && 'colorSpace' in opts ? opts.colorSpace : null;
      if (colorSpace == null) dart.nullFailed(I[237], 352, 25, "colorSpace");
      let bytes = null;
      if (format == ui.ImageByteFormat.rawRgba || format == ui.ImageByteFormat.rawStraightRgba) {
        let imageInfo = _engine.SkImageInfo.new({alphaType: alphaType, colorType: colorType, colorSpace: colorSpace, width: _engine['SkImageExtension|width'](skImage), height: _engine['SkImageExtension|height'](skImage)});
        bytes = _engine['SkImageExtension|readPixels'](skImage, 0.0, 0.0, imageInfo);
      } else {
        bytes = _engine['SkImageExtension|encodeToBytes'](skImage);
      }
      t$36513 = bytes;
      return t$36513 == null ? null : t$36513[$buffer][$asByteData](0, bytes[$length]);
    }
    toString() {
      if (!dart.test(this[_debugCheckIsNotDisposed]())) dart.assertFailed(null, I[237], 374, 12, "_debugCheckIsNotDisposed()");
      return "[" + dart.str(this.width) + "×" + dart.str(this.height) + "]";
    }
  };
  (_engine.CkImage.new = function(skImage, opts) {
    if (skImage == null) dart.nullFailed(I[237], 212, 19, "skImage");
    let videoFrame = opts && 'videoFrame' in opts ? opts.videoFrame : null;
    this[__CkImage__debugStackTrace] = null;
    this[__CkImage__debugStackTrace_isSet] = false;
    this[__CkImage_box] = null;
    this[__CkImage_box_isSet] = false;
    this[_disposed] = false;
    this[videoFrame$] = videoFrame;
    this.box = new (G$.CountedRefOfCkImage$SkImage()).new(skImage, this, "SkImage");
    this[_init]();
  }).prototype = _engine.CkImage.prototype;
  (_engine.CkImage.cloneOf = function(box, opts) {
    if (box == null) dart.nullFailed(I[237], 217, 24, "box");
    let videoFrame = opts && 'videoFrame' in opts ? opts.videoFrame : null;
    this[__CkImage__debugStackTrace] = null;
    this[__CkImage__debugStackTrace_isSet] = false;
    this[__CkImage_box] = null;
    this[__CkImage_box_isSet] = false;
    this[_disposed] = false;
    this[__CkImage_box_isSet] = true;
    this[__CkImage_box] = box;
    this[videoFrame$] = videoFrame;
    this[_init]();
    this.box.ref(this);
  }).prototype = _engine.CkImage.prototype;
  dart.addRtiResources(_engine.CkImage, ["_engine|CkImage", "ui|Image", "_engine|StackTraceDebugger"]);
  dart.setMethodSignature(_engine.CkImage, () => dart.global.Object.setPrototypeOf({
    [_init]: T$.VoidTovoid(),
    [_debugCheckIsNotDisposed]: T$.VoidTobool(),
    dispose: T$.VoidTovoid(),
    clone: T$9.VoidToCkImage(),
    isCloneOf: T$8.ImageTobool(),
    debugGetOpenHandleStackTraces: T$8.VoidToListNOfStackTrace(),
    toByteData: T$9.__ToFutureOfByteData(),
    [_readPixelsFromSkImage]: T$9.ImageByteFormatToFutureOfByteData()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkImage))));
  dart.setStaticMethodSignature(_engine.CkImage, () => ['_encodeImage']);
  dart.setGetterSignature(_engine.CkImage, () => dart.global.Object.setPrototypeOf({
    debugStackTrace: T$.StackTrace(),
    [_debugStackTrace]: T$.StackTrace(),
    box: T$9.CountedRefOfCkImage$SkImage(),
    skImage: T$9.SkImage(),
    debugDisposed: T$.bool(),
    width: T$.int(),
    height: T$.int(),
    colorSpace: T$8.ColorSpace()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkImage))));
  dart.setSetterSignature(_engine.CkImage, () => dart.global.Object.setPrototypeOf({
    [_debugStackTrace]: T$.StackTrace(),
    box: T$9.CountedRefOfCkImage$SkImage()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkImage))));
  dart.setLibraryUri(_engine.CkImage, I[220]);
  dart.setFieldSignature(_engine.CkImage, () => dart.global.Object.setPrototypeOf({
    [__CkImage__debugStackTrace]: {type: T$.StackTraceN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CkImage__debugStackTrace_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CkImage_box]: {type: T$9.CountedRefNOfCkImage$SkImage(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkImage_box_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    videoFrame: {type: T$9.VideoFrameN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_disposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkImage))));
  dart.defineExtensionMethods(_engine.CkImage, ['toString']);
  _engine.CkManagedSkImageFilterConvertible = class CkManagedSkImageFilterConvertible extends core.Object {};
  (_engine.CkManagedSkImageFilterConvertible.new = function() {
    ;
  }).prototype = _engine.CkManagedSkImageFilterConvertible.prototype;
  dart.addRtiResources(_engine.CkManagedSkImageFilterConvertible, ["_engine|CkManagedSkImageFilterConvertible", "ui|ImageFilter"]);
  dart.setLibraryUri(_engine.CkManagedSkImageFilterConvertible, I[220]);
  _engine.CkImageFilter = class CkImageFilter extends core.Object {
    static ['_#blur#tearOff'](opts) {
      let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : null;
      if (sigmaX == null) dart.nullFailed(I[238], 29, 24, "sigmaX");
      let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : null;
      if (sigmaY == null) dart.nullFailed(I[238], 30, 23, "sigmaY");
      let tileMode = opts && 'tileMode' in opts ? opts.tileMode : null;
      if (tileMode == null) dart.nullFailed(I[238], 31, 28, "tileMode");
      return new _engine._CkBlurImageFilter.new({sigmaX: sigmaX, sigmaY: sigmaY, tileMode: tileMode});
    }
    static ['_#color#tearOff'](opts) {
      let colorFilter = opts && 'colorFilter' in opts ? opts.colorFilter : null;
      if (colorFilter == null) dart.nullFailed(I[238], 32, 55, "colorFilter");
      return new _engine.CkColorFilterImageFilter.new({colorFilter: colorFilter});
    }
    static ['_#matrix#tearOff'](opts) {
      let matrix = opts && 'matrix' in opts ? opts.matrix : null;
      if (matrix == null) dart.nullFailed(I[238], 35, 29, "matrix");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : null;
      if (filterQuality == null) dart.nullFailed(I[238], 36, 33, "filterQuality");
      return new _engine._CkMatrixImageFilter.new({matrix: matrix, filterQuality: filterQuality});
    }
    static ['_#dilate#tearOff'](opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : null;
      if (radiusX == null) dart.nullFailed(I[238], 38, 24, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : null;
      if (radiusY == null) dart.nullFailed(I[238], 39, 23, "radiusY");
      return new _engine._CkDilateImageFilter.new({radiusX: radiusX, radiusY: radiusY});
    }
    static ['_#erode#tearOff'](opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : null;
      if (radiusX == null) dart.nullFailed(I[238], 41, 24, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : null;
      if (radiusY == null) dart.nullFailed(I[238], 41, 49, "radiusY");
      return new _engine._CkErodeImageFilter.new({radiusX: radiusX, radiusY: radiusY});
    }
    static ['_#compose#tearOff'](opts) {
      let outer = opts && 'outer' in opts ? opts.outer : null;
      if (outer == null) dart.nullFailed(I[238], 43, 31, "outer");
      let inner = opts && 'inner' in opts ? opts.inner : null;
      if (inner == null) dart.nullFailed(I[238], 44, 30, "inner");
      return new _engine._CkComposeImageFilter.new({outer: outer, inner: inner});
    }
    get transform() {
      return new _engine.Matrix4.identity();
    }
  };
  (_engine.CkImageFilter.__ = function() {
    ;
  }).prototype = _engine.CkImageFilter.prototype;
  dart.addRtiResources(_engine.CkImageFilter, ["_engine|CkImageFilter", "_engine|CkManagedSkImageFilterConvertible", "ui|ImageFilter"]);
  dart.setStaticMethodSignature(_engine.CkImageFilter, () => ['blur', 'color', 'matrix', 'dilate', 'erode', 'compose']);
  dart.setGetterSignature(_engine.CkImageFilter, () => dart.global.Object.setPrototypeOf({transform: T$9.Matrix4()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkImageFilter))));
  dart.setLibraryUri(_engine.CkImageFilter, I[220]);
  var colorFilter$ = dart.privateName(_engine, "CkColorFilterImageFilter.colorFilter");
  var __CkColorFilterImageFilter__ref = dart.privateName(_engine, "_#CkColorFilterImageFilter#_ref");
  var __CkColorFilterImageFilter__ref_isSet = dart.privateName(_engine, "_#CkColorFilterImageFilter#_ref#isSet");
  _engine.CkColorFilterImageFilter = class CkColorFilterImageFilter extends _engine.CkImageFilter {
    get colorFilter() {
      return this[colorFilter$];
    }
    set colorFilter(value) {
      super.colorFilter = value;
    }
    static ['_#new#tearOff'](opts) {
      let colorFilter = opts && 'colorFilter' in opts ? opts.colorFilter : null;
      if (colorFilter == null) dart.nullFailed(I[238], 53, 43, "colorFilter");
      return new _engine.CkColorFilterImageFilter.new({colorFilter: colorFilter});
    }
    get [_ref]() {
      let t$36513;
      return dart.test(this[__CkColorFilterImageFilter__ref_isSet]) ? (t$36513 = this[__CkColorFilterImageFilter__ref], t$36513) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[238], 60, 39, "_ref#param");
      if (dart.test(this[__CkColorFilterImageFilter__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkColorFilterImageFilter__ref_isSet] = true;
        this[__CkColorFilterImageFilter__ref] = _ref$35param;
      }
    }
    imageFilter(borrow) {
      if (borrow == null) dart.nullFailed(I[238], 63, 40, "borrow");
      borrow(this[_ref].nativeObject);
    }
    dispose() {
      this[_ref].dispose();
    }
    get hashCode() {
      return dart.hashCode(this.colorFilter);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$9.CkColorFilterImageFilter()[_is](other) && dart.equals(other.colorFilter, this.colorFilter);
    }
    toString() {
      return dart.toString(this.colorFilter);
    }
  };
  (_engine.CkColorFilterImageFilter.new = function(opts) {
    let colorFilter = opts && 'colorFilter' in opts ? opts.colorFilter : null;
    if (colorFilter == null) dart.nullFailed(I[238], 53, 43, "colorFilter");
    this[__CkColorFilterImageFilter__ref] = null;
    this[__CkColorFilterImageFilter__ref_isSet] = false;
    this[colorFilter$] = colorFilter;
    dart.global.Object.getPrototypeOf(_engine.CkColorFilterImageFilter).__.call(this);
    let skImageFilter = this.colorFilter.initRawImageFilter();
    this[_ref] = new (G$.UniqueRefOfSkImageFilter()).new(this, skImageFilter, "ImageFilter.color");
  }).prototype = _engine.CkColorFilterImageFilter.prototype;
  dart.addRtiResources(_engine.CkColorFilterImageFilter, ["_engine|CkColorFilterImageFilter"]);
  dart.setMethodSignature(_engine.CkColorFilterImageFilter, () => dart.global.Object.setPrototypeOf({
    imageFilter: T$9.FnTovoid$37(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkColorFilterImageFilter))));
  dart.setGetterSignature(_engine.CkColorFilterImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkColorFilterImageFilter))));
  dart.setSetterSignature(_engine.CkColorFilterImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkColorFilterImageFilter))));
  dart.setLibraryUri(_engine.CkColorFilterImageFilter, I[220]);
  dart.setFieldSignature(_engine.CkColorFilterImageFilter, () => dart.global.Object.setPrototypeOf({
    colorFilter: {type: T$9.CkColorFilter(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__CkColorFilterImageFilter__ref]: {type: T$9.UniqueRefNOfSkImageFilter(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkColorFilterImageFilter__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkColorFilterImageFilter))));
  dart.defineExtensionMethods(_engine.CkColorFilterImageFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.CkColorFilterImageFilter, ['hashCode']);
  var ___CkBlurImageFilter__ref = dart.privateName(_engine, "_#_CkBlurImageFilter#_ref");
  var ___CkBlurImageFilter__ref_isSet = dart.privateName(_engine, "_#_CkBlurImageFilter#_ref#isSet");
  _engine._CkBlurImageFilter = class _CkBlurImageFilter extends _engine.CkImageFilter {
    static ['_#new#tearOff'](opts) {
      let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : null;
      if (sigmaX == null) dart.nullFailed(I[238], 89, 22, "sigmaX");
      let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : null;
      if (sigmaY == null) dart.nullFailed(I[238], 89, 44, "sigmaY");
      let tileMode = opts && 'tileMode' in opts ? opts.tileMode : null;
      if (tileMode == null) dart.nullFailed(I[238], 89, 66, "tileMode");
      return new _engine._CkBlurImageFilter.new({sigmaX: sigmaX, sigmaY: sigmaY, tileMode: tileMode});
    }
    get [_ref]() {
      let t$36513;
      return dart.test(this[___CkBlurImageFilter__ref_isSet]) ? (t$36513 = this[___CkBlurImageFilter__ref], t$36513) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[238], 114, 39, "_ref#param");
      if (dart.test(this[___CkBlurImageFilter__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[___CkBlurImageFilter__ref_isSet] = true;
        this[___CkBlurImageFilter__ref] = _ref$35param;
      }
    }
    imageFilter(borrow) {
      if (borrow == null) dart.nullFailed(I[238], 117, 40, "borrow");
      borrow(this[_ref].nativeObject);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$9._CkBlurImageFilter()[_is](other) && other.sigmaX == this.sigmaX && other.sigmaY == this.sigmaY && other.tileMode == this.tileMode;
    }
    get hashCode() {
      return core.Object.hash(this.sigmaX, this.sigmaY, this.tileMode);
    }
    toString() {
      return "ImageFilter.blur(" + dart.str(this.sigmaX) + ", " + dart.str(this.sigmaY) + ", " + dart.str(_engine.tileModeString(this.tileMode)) + ")";
    }
  };
  (_engine._CkBlurImageFilter.new = function(opts) {
    let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : null;
    if (sigmaX == null) dart.nullFailed(I[238], 89, 22, "sigmaX");
    let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : null;
    if (sigmaY == null) dart.nullFailed(I[238], 89, 44, "sigmaY");
    let tileMode = opts && 'tileMode' in opts ? opts.tileMode : null;
    if (tileMode == null) dart.nullFailed(I[238], 89, 66, "tileMode");
    this[___CkBlurImageFilter__ref] = null;
    this[___CkBlurImageFilter__ref_isSet] = false;
    this.sigmaX = sigmaX;
    this.sigmaY = sigmaY;
    this.tileMode = tileMode;
    dart.global.Object.getPrototypeOf(_engine._CkBlurImageFilter).__.call(this);
    let skImageFilter = null;
    if (this.sigmaX === 0 && this.sigmaY === 0) {
      skImageFilter = _engine['SkImageFilterNamespaceExtension|MakeMatrixTransform'](js_util.getProperty(T$9.SkImageFilterNamespace(), _engine.canvasKit, "ImageFilter"), _engine.toSkMatrixFromFloat32(new _engine.Matrix4.identity().storage), _engine.toSkFilterOptions(ui.FilterQuality.none), null);
    } else {
      skImageFilter = _engine['SkImageFilterNamespaceExtension|MakeBlur'](js_util.getProperty(T$9.SkImageFilterNamespace(), _engine.canvasKit, "ImageFilter"), this.sigmaX, this.sigmaY, _engine.toSkTileMode(this.tileMode), null);
    }
    this[_ref] = new (G$.UniqueRefOfSkImageFilter()).new(this, skImageFilter, "ImageFilter.blur");
  }).prototype = _engine._CkBlurImageFilter.prototype;
  dart.addRtiResources(_engine._CkBlurImageFilter, ["_engine|_CkBlurImageFilter"]);
  dart.setMethodSignature(_engine._CkBlurImageFilter, () => dart.global.Object.setPrototypeOf({imageFilter: T$9.FnTovoid$37()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._CkBlurImageFilter))));
  dart.setGetterSignature(_engine._CkBlurImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._CkBlurImageFilter))));
  dart.setSetterSignature(_engine._CkBlurImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine._CkBlurImageFilter))));
  dart.setLibraryUri(_engine._CkBlurImageFilter, I[220]);
  dart.setFieldSignature(_engine._CkBlurImageFilter, () => dart.global.Object.setPrototypeOf({
    sigmaX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    sigmaY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    tileMode: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    [___CkBlurImageFilter__ref]: {type: T$9.UniqueRefNOfSkImageFilter(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___CkBlurImageFilter__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._CkBlurImageFilter))));
  dart.defineExtensionMethods(_engine._CkBlurImageFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine._CkBlurImageFilter, ['hashCode']);
  var ___CkMatrixImageFilter__ref = dart.privateName(_engine, "_#_CkMatrixImageFilter#_ref");
  var ___CkMatrixImageFilter__ref_isSet = dart.privateName(_engine, "_#_CkMatrixImageFilter#_ref#isSet");
  _engine._CkMatrixImageFilter = class _CkMatrixImageFilter extends _engine.CkImageFilter {
    static ['_#new#tearOff'](opts) {
      let matrix = opts && 'matrix' in opts ? opts.matrix : null;
      if (matrix == null) dart.nullFailed(I[238], 143, 29, "matrix");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : null;
      if (filterQuality == null) dart.nullFailed(I[238], 143, 51, "filterQuality");
      return new _engine._CkMatrixImageFilter.new({matrix: matrix, filterQuality: filterQuality});
    }
    get [_ref]() {
      let t$36513;
      return dart.test(this[___CkMatrixImageFilter__ref_isSet]) ? (t$36513 = this[___CkMatrixImageFilter__ref], t$36513) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[238], 160, 39, "_ref#param");
      if (dart.test(this[___CkMatrixImageFilter__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[___CkMatrixImageFilter__ref_isSet] = true;
        this[___CkMatrixImageFilter__ref] = _ref$35param;
      }
    }
    imageFilter(borrow) {
      if (borrow == null) dart.nullFailed(I[238], 163, 40, "borrow");
      borrow(this[_ref].nativeObject);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$9._CkMatrixImageFilter()[_is](other) && other.filterQuality == this.filterQuality && dart.test(_engine.listEquals(T$.double(), other.matrix, this.matrix));
    }
    get hashCode() {
      return core.Object.hash(this.filterQuality, core.Object.hashAll(this.matrix));
    }
    toString() {
      return "ImageFilter.matrix(" + dart.str(this.matrix) + ", " + dart.str(this.filterQuality) + ")";
    }
    get transform() {
      return this[_transform$];
    }
  };
  (_engine._CkMatrixImageFilter.new = function(opts) {
    let matrix = opts && 'matrix' in opts ? opts.matrix : null;
    if (matrix == null) dart.nullFailed(I[238], 143, 29, "matrix");
    let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : null;
    if (filterQuality == null) dart.nullFailed(I[238], 143, 51, "filterQuality");
    this[___CkMatrixImageFilter__ref] = null;
    this[___CkMatrixImageFilter__ref_isSet] = false;
    this.filterQuality = filterQuality;
    this.matrix = _native_typed_data.NativeFloat64List.fromList(matrix);
    this[_transform$] = new _engine.Matrix4.fromFloat32List(_engine.toMatrix32(matrix));
    dart.global.Object.getPrototypeOf(_engine._CkMatrixImageFilter).__.call(this);
    let skImageFilter = _engine['SkImageFilterNamespaceExtension|MakeMatrixTransform'](js_util.getProperty(T$9.SkImageFilterNamespace(), _engine.canvasKit, "ImageFilter"), _engine.toSkMatrixFromFloat64(matrix), _engine.toSkFilterOptions(this.filterQuality), null);
    this[_ref] = new (G$.UniqueRefOfSkImageFilter()).new(this, skImageFilter, "ImageFilter.matrix");
  }).prototype = _engine._CkMatrixImageFilter.prototype;
  dart.addRtiResources(_engine._CkMatrixImageFilter, ["_engine|_CkMatrixImageFilter"]);
  dart.setMethodSignature(_engine._CkMatrixImageFilter, () => dart.global.Object.setPrototypeOf({imageFilter: T$9.FnTovoid$37()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._CkMatrixImageFilter))));
  dart.setGetterSignature(_engine._CkMatrixImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._CkMatrixImageFilter))));
  dart.setSetterSignature(_engine._CkMatrixImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine._CkMatrixImageFilter))));
  dart.setLibraryUri(_engine._CkMatrixImageFilter, I[220]);
  dart.setFieldSignature(_engine._CkMatrixImageFilter, () => dart.global.Object.setPrototypeOf({
    matrix: {type: T$0.Float64List(), isConst: false, isFinal: true, libraryUri: I[43]},
    filterQuality: {type: T$9.FilterQuality(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_transform$]: {type: T$9.Matrix4(), isConst: false, isFinal: true, libraryUri: I[220]},
    [___CkMatrixImageFilter__ref]: {type: T$9.UniqueRefNOfSkImageFilter(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___CkMatrixImageFilter__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._CkMatrixImageFilter))));
  dart.defineExtensionMethods(_engine._CkMatrixImageFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine._CkMatrixImageFilter, ['hashCode']);
  var ___CkDilateImageFilter__ref = dart.privateName(_engine, "_#_CkDilateImageFilter#_ref");
  var ___CkDilateImageFilter__ref_isSet = dart.privateName(_engine, "_#_CkDilateImageFilter#_ref#isSet");
  _engine._CkDilateImageFilter = class _CkDilateImageFilter extends _engine.CkImageFilter {
    static ['_#new#tearOff'](opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : null;
      if (radiusX == null) dart.nullFailed(I[238], 188, 39, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : null;
      if (radiusY == null) dart.nullFailed(I[238], 188, 62, "radiusY");
      return new _engine._CkDilateImageFilter.new({radiusX: radiusX, radiusY: radiusY});
    }
    get [_ref]() {
      let t$36513;
      return dart.test(this[___CkDilateImageFilter__ref_isSet]) ? (t$36513 = this[___CkDilateImageFilter__ref], t$36513) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[238], 201, 39, "_ref#param");
      if (dart.test(this[___CkDilateImageFilter__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[___CkDilateImageFilter__ref_isSet] = true;
        this[___CkDilateImageFilter__ref] = _ref$35param;
      }
    }
    imageFilter(borrow) {
      if (borrow == null) dart.nullFailed(I[238], 204, 40, "borrow");
      borrow(this[_ref].nativeObject);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$9._CkDilateImageFilter()[_is](other) && other.radiusX == this.radiusX && other.radiusY == this.radiusY;
    }
    get hashCode() {
      return core.Object.hash(this.radiusX, this.radiusY);
    }
    toString() {
      return "ImageFilter.dilate(" + dart.str(this.radiusX) + ", " + dart.str(this.radiusY) + ")";
    }
  };
  (_engine._CkDilateImageFilter.new = function(opts) {
    let radiusX = opts && 'radiusX' in opts ? opts.radiusX : null;
    if (radiusX == null) dart.nullFailed(I[238], 188, 39, "radiusX");
    let radiusY = opts && 'radiusY' in opts ? opts.radiusY : null;
    if (radiusY == null) dart.nullFailed(I[238], 188, 62, "radiusY");
    this[___CkDilateImageFilter__ref] = null;
    this[___CkDilateImageFilter__ref_isSet] = false;
    this.radiusX = radiusX;
    this.radiusY = radiusY;
    dart.global.Object.getPrototypeOf(_engine._CkDilateImageFilter).__.call(this);
    let skImageFilter = T$9.SkImageFilter()[_as](js_util.getProperty(T$9.SkImageFilterNamespace(), _engine.canvasKit, "ImageFilter").MakeDilate(this.radiusX, this.radiusY, null));
    this[_ref] = new (G$.UniqueRefOfSkImageFilter()).new(this, skImageFilter, "ImageFilter.dilate");
  }).prototype = _engine._CkDilateImageFilter.prototype;
  dart.addRtiResources(_engine._CkDilateImageFilter, ["_engine|_CkDilateImageFilter"]);
  dart.setMethodSignature(_engine._CkDilateImageFilter, () => dart.global.Object.setPrototypeOf({imageFilter: T$9.FnTovoid$37()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._CkDilateImageFilter))));
  dart.setGetterSignature(_engine._CkDilateImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._CkDilateImageFilter))));
  dart.setSetterSignature(_engine._CkDilateImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine._CkDilateImageFilter))));
  dart.setLibraryUri(_engine._CkDilateImageFilter, I[220]);
  dart.setFieldSignature(_engine._CkDilateImageFilter, () => dart.global.Object.setPrototypeOf({
    radiusX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    radiusY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [___CkDilateImageFilter__ref]: {type: T$9.UniqueRefNOfSkImageFilter(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___CkDilateImageFilter__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._CkDilateImageFilter))));
  dart.defineExtensionMethods(_engine._CkDilateImageFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine._CkDilateImageFilter, ['hashCode']);
  var ___CkErodeImageFilter__ref = dart.privateName(_engine, "_#_CkErodeImageFilter#_ref");
  var ___CkErodeImageFilter__ref_isSet = dart.privateName(_engine, "_#_CkErodeImageFilter#_ref#isSet");
  _engine._CkErodeImageFilter = class _CkErodeImageFilter extends _engine.CkImageFilter {
    static ['_#new#tearOff'](opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : null;
      if (radiusX == null) dart.nullFailed(I[238], 228, 38, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : null;
      if (radiusY == null) dart.nullFailed(I[238], 228, 61, "radiusY");
      return new _engine._CkErodeImageFilter.new({radiusX: radiusX, radiusY: radiusY});
    }
    get [_ref]() {
      let t$36513;
      return dart.test(this[___CkErodeImageFilter__ref_isSet]) ? (t$36513 = this[___CkErodeImageFilter__ref], t$36513) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[238], 241, 39, "_ref#param");
      if (dart.test(this[___CkErodeImageFilter__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[___CkErodeImageFilter__ref_isSet] = true;
        this[___CkErodeImageFilter__ref] = _ref$35param;
      }
    }
    imageFilter(borrow) {
      if (borrow == null) dart.nullFailed(I[238], 244, 40, "borrow");
      borrow(this[_ref].nativeObject);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$9._CkErodeImageFilter()[_is](other) && other.radiusX == this.radiusX && other.radiusY == this.radiusY;
    }
    get hashCode() {
      return core.Object.hash(this.radiusX, this.radiusY);
    }
    toString() {
      return "ImageFilter.erode(" + dart.str(this.radiusX) + ", " + dart.str(this.radiusY) + ")";
    }
  };
  (_engine._CkErodeImageFilter.new = function(opts) {
    let radiusX = opts && 'radiusX' in opts ? opts.radiusX : null;
    if (radiusX == null) dart.nullFailed(I[238], 228, 38, "radiusX");
    let radiusY = opts && 'radiusY' in opts ? opts.radiusY : null;
    if (radiusY == null) dart.nullFailed(I[238], 228, 61, "radiusY");
    this[___CkErodeImageFilter__ref] = null;
    this[___CkErodeImageFilter__ref_isSet] = false;
    this.radiusX = radiusX;
    this.radiusY = radiusY;
    dart.global.Object.getPrototypeOf(_engine._CkErodeImageFilter).__.call(this);
    let skImageFilter = T$9.SkImageFilter()[_as](js_util.getProperty(T$9.SkImageFilterNamespace(), _engine.canvasKit, "ImageFilter").MakeErode(this.radiusX, this.radiusY, null));
    this[_ref] = new (G$.UniqueRefOfSkImageFilter()).new(this, skImageFilter, "ImageFilter.erode");
  }).prototype = _engine._CkErodeImageFilter.prototype;
  dart.addRtiResources(_engine._CkErodeImageFilter, ["_engine|_CkErodeImageFilter"]);
  dart.setMethodSignature(_engine._CkErodeImageFilter, () => dart.global.Object.setPrototypeOf({imageFilter: T$9.FnTovoid$37()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._CkErodeImageFilter))));
  dart.setGetterSignature(_engine._CkErodeImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._CkErodeImageFilter))));
  dart.setSetterSignature(_engine._CkErodeImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine._CkErodeImageFilter))));
  dart.setLibraryUri(_engine._CkErodeImageFilter, I[220]);
  dart.setFieldSignature(_engine._CkErodeImageFilter, () => dart.global.Object.setPrototypeOf({
    radiusX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    radiusY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [___CkErodeImageFilter__ref]: {type: T$9.UniqueRefNOfSkImageFilter(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___CkErodeImageFilter__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._CkErodeImageFilter))));
  dart.defineExtensionMethods(_engine._CkErodeImageFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine._CkErodeImageFilter, ['hashCode']);
  var ___CkComposeImageFilter__ref = dart.privateName(_engine, "_#_CkComposeImageFilter#_ref");
  var ___CkComposeImageFilter__ref_isSet = dart.privateName(_engine, "_#_CkComposeImageFilter#_ref#isSet");
  _engine._CkComposeImageFilter = class _CkComposeImageFilter extends _engine.CkImageFilter {
    static ['_#new#tearOff'](opts) {
      let outer = opts && 'outer' in opts ? opts.outer : null;
      if (outer == null) dart.nullFailed(I[238], 268, 40, "outer");
      let inner = opts && 'inner' in opts ? opts.inner : null;
      if (inner == null) dart.nullFailed(I[238], 268, 61, "inner");
      return new _engine._CkComposeImageFilter.new({outer: outer, inner: inner});
    }
    get [_ref]() {
      let t$36513;
      return dart.test(this[___CkComposeImageFilter__ref_isSet]) ? (t$36513 = this[___CkComposeImageFilter__ref], t$36513) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[238], 285, 39, "_ref#param");
      if (dart.test(this[___CkComposeImageFilter__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[___CkComposeImageFilter__ref_isSet] = true;
        this[___CkComposeImageFilter__ref] = _ref$35param;
      }
    }
    imageFilter(borrow) {
      if (borrow == null) dart.nullFailed(I[238], 288, 40, "borrow");
      borrow(this[_ref].nativeObject);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$9._CkComposeImageFilter()[_is](other) && dart.equals(other.outer, this.outer) && dart.equals(other.inner, this.inner);
    }
    get hashCode() {
      return core.Object.hash(this.outer, this.inner);
    }
    toString() {
      return "ImageFilter.compose(" + dart.str(this.outer) + ", " + dart.str(this.inner) + ")";
    }
  };
  (_engine._CkComposeImageFilter.new = function(opts) {
    let outer = opts && 'outer' in opts ? opts.outer : null;
    if (outer == null) dart.nullFailed(I[238], 268, 40, "outer");
    let inner = opts && 'inner' in opts ? opts.inner : null;
    if (inner == null) dart.nullFailed(I[238], 268, 61, "inner");
    this[___CkComposeImageFilter__ref] = null;
    this[___CkComposeImageFilter__ref_isSet] = false;
    this.outer = outer;
    this.inner = inner;
    dart.global.Object.getPrototypeOf(_engine._CkComposeImageFilter).__.call(this);
    this.outer.imageFilter(dart.fn(outerFilter => {
      if (outerFilter == null) dart.nullFailed(I[238], 270, 38, "outerFilter");
      this.inner.imageFilter(dart.fn(innerFilter => {
        if (innerFilter == null) dart.nullFailed(I[238], 271, 40, "innerFilter");
        let skImageFilter = T$9.SkImageFilter()[_as](js_util.getProperty(T$9.SkImageFilterNamespace(), _engine.canvasKit, "ImageFilter").MakeCompose(outerFilter, innerFilter));
        this[_ref] = new (G$.UniqueRefOfSkImageFilter()).new(this, skImageFilter, "ImageFilter.compose");
      }, T$9.SkImageFilterTovoid()));
    }, T$9.SkImageFilterTovoid()));
  }).prototype = _engine._CkComposeImageFilter.prototype;
  dart.addRtiResources(_engine._CkComposeImageFilter, ["_engine|_CkComposeImageFilter"]);
  dart.setMethodSignature(_engine._CkComposeImageFilter, () => dart.global.Object.setPrototypeOf({imageFilter: T$9.FnTovoid$37()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._CkComposeImageFilter))));
  dart.setGetterSignature(_engine._CkComposeImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._CkComposeImageFilter))));
  dart.setSetterSignature(_engine._CkComposeImageFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkImageFilter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine._CkComposeImageFilter))));
  dart.setLibraryUri(_engine._CkComposeImageFilter, I[220]);
  dart.setFieldSignature(_engine._CkComposeImageFilter, () => dart.global.Object.setPrototypeOf({
    outer: {type: T$9.CkImageFilter(), isConst: false, isFinal: true, libraryUri: I[220]},
    inner: {type: T$9.CkImageFilter(), isConst: false, isFinal: true, libraryUri: I[220]},
    [___CkComposeImageFilter__ref]: {type: T$9.UniqueRefNOfSkImageFilter(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___CkComposeImageFilter__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._CkComposeImageFilter))));
  dart.defineExtensionMethods(_engine._CkComposeImageFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine._CkComposeImageFilter, ['hashCode']);
  var src$ = dart.privateName(_engine, "CkAnimatedImage.src");
  var targetWidth$ = dart.privateName(_engine, "CkAnimatedImage.targetWidth");
  var targetHeight$ = dart.privateName(_engine, "CkAnimatedImage.targetHeight");
  var __CkAnimatedImage__ref = dart.privateName(_engine, "_#CkAnimatedImage#_ref");
  var __CkAnimatedImage__ref_isSet = dart.privateName(_engine, "_#CkAnimatedImage#_ref#isSet");
  var _frameCount = dart.privateName(_engine, "_frameCount");
  var _repetitionCount = dart.privateName(_engine, "_repetitionCount");
  var _bytes$ = dart.privateName(_engine, "_bytes");
  var _resizeAnimatedImage = dart.privateName(_engine, "_resizeAnimatedImage");
  var _getNextFrame$ = dart.privateName(_engine, "_getNextFrame");
  _engine.CkAnimatedImage = class CkAnimatedImage extends core.Object {
    get src() {
      return this[src$];
    }
    set src(value) {
      super.src = value;
    }
    get targetWidth() {
      return this[targetWidth$];
    }
    set targetWidth(value) {
      super.targetWidth = value;
    }
    get targetHeight() {
      return this[targetHeight$];
    }
    set targetHeight(value) {
      super.targetHeight = value;
    }
    static ['_#decodeFromBytes#tearOff'](_bytes, src, opts) {
      if (_bytes == null) dart.nullFailed(I[239], 19, 40, "_bytes");
      if (src == null) dart.nullFailed(I[239], 19, 53, "src");
      let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
      let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
      return new _engine.CkAnimatedImage.decodeFromBytes(_bytes, src, {targetWidth: targetWidth, targetHeight: targetHeight});
    }
    get [_ref]() {
      let t$36513;
      return dart.test(this[__CkAnimatedImage__ref_isSet]) ? (t$36513 = this[__CkAnimatedImage__ref], t$36513) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[239], 24, 41, "_ref#param");
      if (dart.test(this[__CkAnimatedImage__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkAnimatedImage__ref_isSet] = true;
        this[__CkAnimatedImage__ref] = _ref$35param;
      }
    }
    createSkAnimatedImage() {
      let animatedImage = _engine['CanvasKitExtension|MakeAnimatedImageFromEncoded'](_engine.canvasKit, this[_bytes$]);
      if (animatedImage == null) {
        dart.throw(new _engine.ImageCodecException.new("Failed to decode image data.\n" + "Image source: " + dart.str(this.src)));
      }
      if (this.targetWidth != null || this.targetHeight != null) {
        if (dart.notNull(_engine['SkAnimatedImageExtension|getFrameCount'](animatedImage)) > 1) {
          _engine.printWarning("targetWidth and targetHeight for multi-frame images not supported");
        } else {
          animatedImage = this[_resizeAnimatedImage](animatedImage, this.targetWidth, this.targetHeight);
          if (animatedImage == null) {
            dart.throw(new _engine.ImageCodecException.new("Failed to decode re-sized image data.\n" + "Image source: " + dart.str(this.src)));
          }
        }
      }
      this[_frameCount] = _engine['SkAnimatedImageExtension|getFrameCount'](animatedImage)[$toInt]();
      this[_repetitionCount] = _engine['SkAnimatedImageExtension|getRepetitionCount'](animatedImage)[$toInt]();
      return animatedImage;
    }
    [_resizeAnimatedImage](animatedImage, targetWidth, targetHeight) {
      if (animatedImage == null) dart.nullFailed(I[239], 63, 57, "animatedImage");
      let image = T$9.SkImage()[_as](animatedImage.makeImageAtCurrentFrame());
      let ckImage = _engine.scaleImage(image, targetWidth, targetHeight);
      let resizedBytes = _engine['SkImageExtension|encodeToBytes'](ckImage.skImage);
      if (resizedBytes == null) {
        dart.throw(new _engine.ImageCodecException.new("Failed to re-size image"));
      }
      let resizedAnimatedImage = _engine['CanvasKitExtension|MakeAnimatedImageFromEncoded'](_engine.canvasKit, resizedBytes);
      return resizedAnimatedImage;
    }
    get debugDisposed() {
      return this[_disposed];
    }
    [_debugCheckIsNotDisposed]() {
      if (!!dart.test(this[_disposed])) dart.assertFailed("This image has been disposed.", I[239], 80, 12, "!_disposed");
      return true;
    }
    dispose() {
      if (!!dart.test(this[_disposed])) dart.assertFailed("Cannot dispose a codec that has already been disposed.", I[239], 87, 7, "!_disposed");
      this[_disposed] = true;
      this[_ref].dispose();
    }
    get frameCount() {
      if (!dart.test(this[_debugCheckIsNotDisposed]())) dart.assertFailed(null, I[239], 96, 12, "_debugCheckIsNotDisposed()");
      return this[_frameCount];
    }
    get repetitionCount() {
      if (!dart.test(this[_debugCheckIsNotDisposed]())) dart.assertFailed(null, I[239], 102, 12, "_debugCheckIsNotDisposed()");
      return this[_repetitionCount];
    }
    getNextFrame() {
      if (!dart.test(this[_debugCheckIsNotDisposed]())) dart.assertFailed(null, I[239], 108, 12, "_debugCheckIsNotDisposed()");
      let animatedImage = this[_ref].nativeObject;
      let currentFrame = new _engine.AnimatedImageFrameInfo.new(new core.Duration.new({milliseconds: _engine['SkAnimatedImageExtension|currentFrameDuration'](animatedImage)[$toInt]()}), new _engine.CkImage.new(T$9.SkImage()[_as](animatedImage.makeImageAtCurrentFrame())));
      _engine['SkAnimatedImageExtension|decodeNextFrame'](animatedImage);
      return G$.FutureOfFrameInfo().value(currentFrame);
    }
    [_getNextFrame](callback) {
      if (callback == null) dart.nullFailed(I[239], 17, 7, "callback");
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.method(C[834] || CT.C834, null, [callback], null)));
    }
  };
  (_engine.CkAnimatedImage.decodeFromBytes = function(_bytes, src, opts) {
    if (_bytes == null) dart.nullFailed(I[239], 19, 40, "_bytes");
    if (src == null) dart.nullFailed(I[239], 19, 53, "src");
    let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
    let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
    this[__CkAnimatedImage__ref] = null;
    this[__CkAnimatedImage__ref_isSet] = false;
    this[_frameCount] = 0;
    this[_repetitionCount] = -1;
    this[_disposed] = false;
    this[_bytes$] = _bytes;
    this[src$] = src;
    this[targetWidth$] = targetWidth;
    this[targetHeight$] = targetHeight;
    let skAnimatedImage = this.createSkAnimatedImage();
    this[_ref] = new (G$.UniqueRefOfSkAnimatedImage()).new(this, skAnimatedImage, "Codec");
  }).prototype = _engine.CkAnimatedImage.prototype;
  dart.addRtiResources(_engine.CkAnimatedImage, ["_engine|CkAnimatedImage", "ui|Codec"]);
  dart.setMethodSignature(_engine.CkAnimatedImage, () => dart.global.Object.setPrototypeOf({
    createSkAnimatedImage: T$9.VoidToSkAnimatedImage(),
    [_resizeAnimatedImage]: T$9.SkAnimatedImageAndintNAndintNToSkAnimatedImageN(),
    [_debugCheckIsNotDisposed]: T$.VoidTobool(),
    dispose: T$.VoidTovoid(),
    getNextFrame: T$9.VoidToFutureOfFrameInfo(),
    [_getNextFrame]: T$9.FnToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkAnimatedImage))));
  dart.setGetterSignature(_engine.CkAnimatedImage, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$9.UniqueRefOfSkAnimatedImage(),
    debugDisposed: T$.bool(),
    frameCount: T$.int(),
    repetitionCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkAnimatedImage))));
  dart.setSetterSignature(_engine.CkAnimatedImage, () => dart.global.Object.setPrototypeOf({[_ref]: T$9.UniqueRefOfSkAnimatedImage()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkAnimatedImage))));
  dart.setLibraryUri(_engine.CkAnimatedImage, I[220]);
  dart.setFieldSignature(_engine.CkAnimatedImage, () => dart.global.Object.setPrototypeOf({
    [__CkAnimatedImage__ref]: {type: T$9.UniqueRefNOfSkAnimatedImage(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkAnimatedImage__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    src: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_bytes$]: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_frameCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_repetitionCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    targetWidth: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    targetHeight: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_disposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkAnimatedImage))));
  var contentType$ = dart.privateName(_engine, "BrowserImageDecoder.contentType");
  var dataSource$ = dart.privateName(_engine, "BrowserImageDecoder.dataSource");
  var debugSource$ = dart.privateName(_engine, "BrowserImageDecoder.debugSource");
  var __BrowserImageDecoder_frameCount = dart.privateName(_engine, "_#BrowserImageDecoder#frameCount");
  var __BrowserImageDecoder_frameCount_isSet = dart.privateName(_engine, "_#BrowserImageDecoder#frameCount#isSet");
  var __BrowserImageDecoder_repetitionCount = dart.privateName(_engine, "_#BrowserImageDecoder#repetitionCount");
  var __BrowserImageDecoder_repetitionCount_isSet = dart.privateName(_engine, "_#BrowserImageDecoder#repetitionCount#isSet");
  var _isDisposed = dart.privateName(_engine, "_isDisposed");
  var _nextFrameIndex = dart.privateName(_engine, "_nextFrameIndex");
  var _cachedWebDecoder = dart.privateName(_engine, "_cachedWebDecoder");
  var _cacheExpirationClock = dart.privateName(_engine, "_cacheExpirationClock");
  var _debugCheckNotDisposed = dart.privateName(_engine, "_debugCheckNotDisposed");
  var _getOrCreateWebDecoder = dart.privateName(_engine, "_getOrCreateWebDecoder");
  _engine.BrowserImageDecoder = class BrowserImageDecoder extends core.Object {
    get contentType() {
      return this[contentType$];
    }
    set contentType(value) {
      super.contentType = value;
    }
    get dataSource() {
      return this[dataSource$];
    }
    set dataSource(value) {
      super.dataSource = value;
    }
    get debugSource() {
      return this[debugSource$];
    }
    set debugSource(value) {
      super.debugSource = value;
    }
    get frameCount() {
      let t$36513;
      return dart.test(this[__BrowserImageDecoder_frameCount_isSet]) ? (t$36513 = this[__BrowserImageDecoder_frameCount], t$36513) : dart.throw(new _internal.LateError.fieldNI("frameCount"));
    }
    set frameCount(frameCount$35param) {
      if (frameCount$35param == null) dart.nullFailed(I[241], 39, 12, "frameCount#param");
      this[__BrowserImageDecoder_frameCount_isSet] = true;
      this[__BrowserImageDecoder_frameCount] = frameCount$35param;
    }
    get repetitionCount() {
      let t$36513;
      return dart.test(this[__BrowserImageDecoder_repetitionCount_isSet]) ? (t$36513 = this[__BrowserImageDecoder_repetitionCount], t$36513) : dart.throw(new _internal.LateError.fieldNI("repetitionCount"));
    }
    set repetitionCount(repetitionCount$35param) {
      if (repetitionCount$35param == null) dart.nullFailed(I[241], 42, 12, "repetitionCount#param");
      this[__BrowserImageDecoder_repetitionCount_isSet] = true;
      this[__BrowserImageDecoder_repetitionCount] = repetitionCount$35param;
    }
    dispose() {
      let t$36513;
      this[_isDisposed] = true;
      t$36513 = this[_cachedWebDecoder];
      t$36513 == null ? null : t$36513.close();
      this[_cachedWebDecoder] = null;
    }
    [_debugCheckNotDisposed]() {
      if (!!dart.test(this[_isDisposed])) dart.assertFailed("Cannot use this image decoder. It has been disposed of.", I[241], 60, 12, "!_isDisposed");
    }
    get debugCachedWebDecoder() {
      return this[_cachedWebDecoder];
    }
    initialize() {
      return this[_getOrCreateWebDecoder]();
    }
    [_getOrCreateWebDecoder]() {
      return async.async(T$9.ImageDecoder(), (function* _getOrCreateWebDecoder() {
        if (this[_cachedWebDecoder] != null) {
          this[_cacheExpirationClock].datetime = new core.DateTime.now().add(_engine._kWebDecoderExpireDuration);
          return dart.nullCheck(this[_cachedWebDecoder]);
        }
        this[_cacheExpirationClock].callback = null;
        try {
          let webDecoder = T$9.ImageDecoder()[_as](new dart.global.window.ImageDecoder({type: js_interop['StringToJSString|get#toJS'](this.contentType), data: this.dataSource, premultiplyAlpha: js_interop['StringToJSString|get#toJS']("premultiply"), colorSpaceConversion: js_interop['StringToJSString|get#toJS']("default"), preferAnimation: js_interop['BoolToJSBoolean|get#toJS'](true)}));
          yield _engine.promiseToFuture(T$.void(), js_util.getProperty(T$3.JSObject(), js_util.getProperty(T$9.ImageTrackList(), webDecoder, "tracks"), "ready"));
          yield _engine.promiseToFuture(T$.void(), _engine.getJsProperty(T$.Object(), webDecoder, "completed"));
          this.frameCount = _engine['ImageTrackExtension|get#frameCount'](dart.nullCheck(js_util.getProperty(T$9.ImageTrackN(), js_util.getProperty(T$9.ImageTrackList(), webDecoder, "tracks"), "selectedTrack")))[$toInt]();
          let rawRepetitionCount = _engine['ImageTrackExtension|get#repetitionCount'](dart.nullCheck(js_util.getProperty(T$9.ImageTrackN(), js_util.getProperty(T$9.ImageTrackList(), webDecoder, "tracks"), "selectedTrack")));
          this.repetitionCount = rawRepetitionCount === 1 / 0 ? -1 : rawRepetitionCount[$toInt]();
          this[_cachedWebDecoder] = webDecoder;
          this[_cacheExpirationClock].callback = dart.fn(() => {
            let t$36513;
            t$36513 = this[_cachedWebDecoder];
            t$36513 == null ? null : t$36513.close();
            this[_cachedWebDecoder] = null;
            this[_cacheExpirationClock].callback = null;
          }, T$.VoidTovoid());
          this[_cacheExpirationClock].datetime = new core.DateTime.now().add(_engine._kWebDecoderExpireDuration);
          return webDecoder;
        } catch (t$36$35e) {
          let error = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](error)) {
            if (dart.test(_engine.domInstanceOfString(error, "DOMException"))) {
              if (_engine['DomExceptionExtension|get#name'](T$9.DomException$1()[_as](error)) === "NotSupportedError") {
                dart.throw(new _engine.ImageCodecException.new("Image file format (" + dart.str(this.contentType) + ") is not supported by this browser's ImageDecoder API.\n" + "Image source: " + dart.str(this.debugSource)));
              }
            }
            dart.throw(new _engine.ImageCodecException.new("Failed to decode image using the browser's ImageDecoder API.\n" + "Image source: " + dart.str(this.debugSource) + "\n" + "Original browser error: " + dart.str(error)));
          } else
            throw t$36$35e;
        }
      }).bind(this));
    }
    getNextFrame() {
      return async.async(T$9.FrameInfo(), (function* getNextFrame() {
        let t$36514, t$36514$;
        this[_debugCheckNotDisposed]();
        let webDecoder = (yield this[_getOrCreateWebDecoder]());
        let result = (yield _engine.promiseToFuture(T$9.DecodeResult(), T$3.JSObject()[_as](webDecoder.decode({frameIndex: js_interop['NumToJSExtension|get#toJS'](this[_nextFrameIndex])}))));
        let frame = js_util.getProperty(T$9.VideoFrame(), result, "image");
        this[_nextFrameIndex] = (dart.notNull(this[_nextFrameIndex]) + 1)[$modulo](this.frameCount);
        let duration = new core.Duration.new({microseconds: (t$36514$ = (t$36514 = _engine['VideoFrameExtension|get#duration'](frame), t$36514 == null ? null : t$36514[$toInt]()), t$36514$ == null ? 0 : t$36514$)});
        let image = this.generateImageFromVideoFrame(frame);
        return new _engine.AnimatedImageFrameInfo.new(duration, image);
      }).bind(this));
    }
  };
  (_engine.BrowserImageDecoder.new = function(opts) {
    let contentType = opts && 'contentType' in opts ? opts.contentType : null;
    if (contentType == null) dart.nullFailed(I[241], 29, 19, "contentType");
    let dataSource = opts && 'dataSource' in opts ? opts.dataSource : null;
    if (dataSource == null) dart.nullFailed(I[241], 30, 19, "dataSource");
    let debugSource = opts && 'debugSource' in opts ? opts.debugSource : null;
    if (debugSource == null) dart.nullFailed(I[241], 31, 19, "debugSource");
    this[__BrowserImageDecoder_frameCount] = null;
    this[__BrowserImageDecoder_frameCount_isSet] = false;
    this[__BrowserImageDecoder_repetitionCount] = null;
    this[__BrowserImageDecoder_repetitionCount_isSet] = false;
    this[_isDisposed] = false;
    this[_nextFrameIndex] = 0;
    this[_cachedWebDecoder] = null;
    this[_cacheExpirationClock] = new _engine.AlarmClock.new(dart.fn(() => new core.DateTime.now(), T$2.VoidToDateTime()));
    this[contentType$] = contentType;
    this[dataSource$] = dataSource;
    this[debugSource$] = debugSource;
    ;
  }).prototype = _engine.BrowserImageDecoder.prototype;
  dart.addRtiResources(_engine.BrowserImageDecoder, ["_engine|BrowserImageDecoder", "ui|Codec"]);
  dart.setMethodSignature(_engine.BrowserImageDecoder, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    [_debugCheckNotDisposed]: T$.VoidTovoid(),
    initialize: T$.VoidToFutureOfvoid(),
    [_getOrCreateWebDecoder]: T$9.VoidToFutureOfImageDecoder(),
    getNextFrame: T$9.VoidToFutureOfFrameInfo()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BrowserImageDecoder))));
  dart.setGetterSignature(_engine.BrowserImageDecoder, () => dart.global.Object.setPrototypeOf({
    frameCount: T$.int(),
    repetitionCount: T$.int(),
    debugCachedWebDecoder: T$9.ImageDecoderN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.BrowserImageDecoder))));
  dart.setSetterSignature(_engine.BrowserImageDecoder, () => dart.global.Object.setPrototypeOf({
    frameCount: T$.int(),
    repetitionCount: T$.int()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.BrowserImageDecoder))));
  dart.setLibraryUri(_engine.BrowserImageDecoder, I[220]);
  dart.setFieldSignature(_engine.BrowserImageDecoder, () => dart.global.Object.setPrototypeOf({
    contentType: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    dataSource: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]},
    debugSource: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [__BrowserImageDecoder_frameCount]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__BrowserImageDecoder_frameCount_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__BrowserImageDecoder_repetitionCount]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__BrowserImageDecoder_repetitionCount_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isDisposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_nextFrameIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_cachedWebDecoder]: {type: T$9.ImageDecoderN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_cacheExpirationClock]: {type: T$9.AlarmClock(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.BrowserImageDecoder))));
  _engine.CkBrowserImageDecoder = class CkBrowserImageDecoder extends _engine.BrowserImageDecoder {
    static ['_#_#tearOff'](opts) {
      let contentType = opts && 'contentType' in opts ? opts.contentType : null;
      if (contentType == null) dart.nullFailed(I[240], 17, 20, "contentType");
      let dataSource = opts && 'dataSource' in opts ? opts.dataSource : null;
      if (dataSource == null) dart.nullFailed(I[240], 18, 20, "dataSource");
      let debugSource = opts && 'debugSource' in opts ? opts.debugSource : null;
      if (debugSource == null) dart.nullFailed(I[240], 19, 20, "debugSource");
      return new _engine.CkBrowserImageDecoder.__({contentType: contentType, dataSource: dataSource, debugSource: debugSource});
    }
    static create(opts) {
      let data = opts && 'data' in opts ? opts.data : null;
      if (data == null) dart.nullFailed(I[240], 23, 24, "data");
      let debugSource = opts && 'debugSource' in opts ? opts.debugSource : null;
      if (debugSource == null) dart.nullFailed(I[240], 24, 21, "debugSource");
      return async.async(T$9.CkBrowserImageDecoder(), function* create() {
        let contentType = _engine.detectContentType(data);
        if (contentType == null) {
          let fileHeader = null;
          if (dart.test(data[$isNotEmpty])) {
            fileHeader = "[" + dart.str(_engine.bytesToHexString(data[$sublist](0, math.min(T$.int(), 10, data[$length])))) + "]";
          } else {
            fileHeader = "empty";
          }
          dart.throw(new _engine.ImageCodecException.new("Failed to detect image file format using the file header.\n" + "File header was " + dart.str(fileHeader) + ".\n" + "Image source: " + dart.str(debugSource)));
        }
        let decoder = new _engine.CkBrowserImageDecoder.__({contentType: contentType, dataSource: js_interop['Uint8ListToJSUint8Array|get#toJS'](data), debugSource: debugSource});
        yield decoder.initialize();
        return decoder;
      });
    }
    generateImageFromVideoFrame(frame) {
      if (frame == null) dart.nullFailed(I[240], 56, 51, "frame");
      let skImage = _engine['CanvasKitExtension|MakeLazyImageFromTextureSourceWithInfo'](_engine.canvasKit, frame, _engine.SkPartialImageInfo.new({alphaType: js_util.getProperty(T$9.SkAlphaType(), js_util.getProperty(T$9.SkAlphaTypeEnum(), _engine.canvasKit, "AlphaType"), "Premul"), colorType: js_util.getProperty(T$9.SkColorType(), js_util.getProperty(T$9.SkColorTypeEnum(), _engine.canvasKit, "ColorType"), "RGBA_8888"), colorSpace: dart.jsInteropNullCheck(dart.global.window.flutterCanvasKit.ColorSpace.SRGB), width: _engine['VideoFrameExtension|get#displayWidth'](frame), height: _engine['VideoFrameExtension|get#displayHeight'](frame)}));
      if (skImage == null) {
        dart.throw(new _engine.ImageCodecException.new("Failed to create image from pixel data decoded using the browser's ImageDecoder."));
      }
      return new _engine.CkImage.new(skImage, {videoFrame: frame});
    }
    [_getNextFrame](callback) {
      if (callback == null) dart.nullFailed(I[240], 15, 7, "callback");
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.method(C[834] || CT.C834, null, [callback], null)));
    }
  };
  (_engine.CkBrowserImageDecoder.__ = function(opts) {
    let contentType = opts && 'contentType' in opts ? opts.contentType : null;
    if (contentType == null) dart.nullFailed(I[240], 17, 20, "contentType");
    let dataSource = opts && 'dataSource' in opts ? opts.dataSource : null;
    if (dataSource == null) dart.nullFailed(I[240], 18, 20, "dataSource");
    let debugSource = opts && 'debugSource' in opts ? opts.debugSource : null;
    if (debugSource == null) dart.nullFailed(I[240], 19, 20, "debugSource");
    dart.global.Object.getPrototypeOf(_engine.CkBrowserImageDecoder).new.call(this, {contentType: contentType, dataSource: dataSource, debugSource: debugSource});
    ;
  }).prototype = _engine.CkBrowserImageDecoder.prototype;
  dart.addRtiResources(_engine.CkBrowserImageDecoder, ["_engine|CkBrowserImageDecoder"]);
  dart.setMethodSignature(_engine.CkBrowserImageDecoder, () => dart.global.Object.setPrototypeOf({
    generateImageFromVideoFrame: T$9.VideoFrameToImage(),
    [_getNextFrame]: T$9.FnToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkBrowserImageDecoder))));
  dart.setStaticMethodSignature(_engine.CkBrowserImageDecoder, () => ['create']);
  dart.setLibraryUri(_engine.CkBrowserImageDecoder, I[220]);
  var parent = dart.privateName(_engine, "Layer.parent");
  var paintBounds = dart.privateName(_engine, "Layer.paintBounds");
  _engine.Layer = class Layer extends core.Object {
    get parent() {
      return this[parent];
    }
    set parent(value) {
      this[parent] = value;
    }
    get paintBounds() {
      return this[paintBounds];
    }
    set paintBounds(value) {
      if (value == null) dart.nullFailed(I[242], 17, 11, "paintBounds");
      this[paintBounds] = value;
    }
    get needsPainting() {
      return !dart.test(this.paintBounds.isEmpty);
    }
    dispose() {
    }
  };
  (_engine.Layer.new = function() {
    this[parent] = null;
    this[paintBounds] = ui.Rect.zero;
    ;
  }).prototype = _engine.Layer.prototype;
  dart.addRtiResources(_engine.Layer, ["_engine|Layer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.Layer, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Layer))));
  dart.setGetterSignature(_engine.Layer, () => dart.global.Object.setPrototypeOf({needsPainting: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Layer))));
  dart.setLibraryUri(_engine.Layer, I[220]);
  dart.setFieldSignature(_engine.Layer, () => dart.global.Object.setPrototypeOf({
    parent: {type: T$9.ContainerLayerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    paintBounds: {type: T$8.Rect(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Layer))));
  var rasterCache$ = dart.privateName(_engine, "PrerollContext.rasterCache");
  var viewEmbedder$ = dart.privateName(_engine, "PrerollContext.viewEmbedder");
  var mutatorsStack = dart.privateName(_engine, "PrerollContext.mutatorsStack");
  _engine.PrerollContext = class PrerollContext extends core.Object {
    get rasterCache() {
      return this[rasterCache$];
    }
    set rasterCache(value) {
      super.rasterCache = value;
    }
    get viewEmbedder() {
      return this[viewEmbedder$];
    }
    set viewEmbedder(value) {
      super.viewEmbedder = value;
    }
    get mutatorsStack() {
      return this[mutatorsStack];
    }
    set mutatorsStack(value) {
      super.mutatorsStack = value;
    }
    static ['_#new#tearOff'](rasterCache, viewEmbedder) {
      return new _engine.PrerollContext.new(rasterCache, viewEmbedder);
    }
    get cullRect() {
      let cullRect = ui.Rect.largest;
      for (let m of this.mutatorsStack) {
        let clipRect = null;
        switch (m.type) {
          case C[827] || CT.C827:
            {
              clipRect = dart.nullCheck(m.rect);
              break;
            }
          case C[828] || CT.C828:
            {
              clipRect = dart.nullCheck(m.rrect).outerRect;
              break;
            }
          case C[829] || CT.C829:
            {
              clipRect = dart.nullCheck(m.path).getBounds();
              break;
            }
          default:
            {
              continue;
            }
        }
        cullRect = cullRect.intersect(clipRect);
      }
      return cullRect;
    }
  };
  (_engine.PrerollContext.new = function(rasterCache, viewEmbedder) {
    this[mutatorsStack] = new _engine.MutatorsStack.new();
    this[rasterCache$] = rasterCache;
    this[viewEmbedder$] = viewEmbedder;
    ;
  }).prototype = _engine.PrerollContext.prototype;
  dart.addRtiResources(_engine.PrerollContext, ["_engine|PrerollContext"]);
  dart.setGetterSignature(_engine.PrerollContext, () => dart.global.Object.setPrototypeOf({cullRect: T$8.Rect()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PrerollContext))));
  dart.setLibraryUri(_engine.PrerollContext, I[220]);
  dart.setFieldSignature(_engine.PrerollContext, () => dart.global.Object.setPrototypeOf({
    rasterCache: {type: T$9.RasterCacheN(), isConst: false, isFinal: true, libraryUri: I[220]},
    viewEmbedder: {type: T$9.HtmlViewEmbedderN(), isConst: false, isFinal: true, libraryUri: I[220]},
    mutatorsStack: {type: T$9.MutatorsStack(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PrerollContext))));
  var internalNodesCanvas$ = dart.privateName(_engine, "PaintContext.internalNodesCanvas");
  var leafNodesCanvas$ = dart.privateName(_engine, "PaintContext.leafNodesCanvas");
  var rasterCache$0 = dart.privateName(_engine, "PaintContext.rasterCache");
  var viewEmbedder$0 = dart.privateName(_engine, "PaintContext.viewEmbedder");
  _engine.PaintContext = class PaintContext extends core.Object {
    get internalNodesCanvas() {
      return this[internalNodesCanvas$];
    }
    set internalNodesCanvas(value) {
      if (value == null) dart.nullFailed(I[242], 82, 16, "internalNodesCanvas");
      this[internalNodesCanvas$] = value;
    }
    get leafNodesCanvas() {
      return this[leafNodesCanvas$];
    }
    set leafNodesCanvas(value) {
      this[leafNodesCanvas$] = value;
    }
    get rasterCache() {
      return this[rasterCache$0];
    }
    set rasterCache(value) {
      super.rasterCache = value;
    }
    get viewEmbedder() {
      return this[viewEmbedder$0];
    }
    set viewEmbedder(value) {
      super.viewEmbedder = value;
    }
    static ['_#new#tearOff'](internalNodesCanvas, leafNodesCanvas, rasterCache, viewEmbedder) {
      if (internalNodesCanvas == null) dart.nullFailed(I[242], 73, 10, "internalNodesCanvas");
      return new _engine.PaintContext.new(internalNodesCanvas, leafNodesCanvas, rasterCache, viewEmbedder);
    }
  };
  (_engine.PaintContext.new = function(internalNodesCanvas, leafNodesCanvas, rasterCache, viewEmbedder) {
    if (internalNodesCanvas == null) dart.nullFailed(I[242], 73, 10, "internalNodesCanvas");
    this[internalNodesCanvas$] = internalNodesCanvas;
    this[leafNodesCanvas$] = leafNodesCanvas;
    this[rasterCache$0] = rasterCache;
    this[viewEmbedder$0] = viewEmbedder;
    ;
  }).prototype = _engine.PaintContext.prototype;
  dart.addRtiResources(_engine.PaintContext, ["_engine|PaintContext"]);
  dart.setLibraryUri(_engine.PaintContext, I[220]);
  dart.setFieldSignature(_engine.PaintContext, () => dart.global.Object.setPrototypeOf({
    internalNodesCanvas: {type: T$9.CkNWayCanvas(), isConst: false, isFinal: false, libraryUri: I[220]},
    leafNodesCanvas: {type: T$9.CkCanvasN(), isConst: false, isFinal: false, libraryUri: I[220]},
    rasterCache: {type: T$9.RasterCacheN(), isConst: false, isFinal: true, libraryUri: I[220]},
    viewEmbedder: {type: T$9.HtmlViewEmbedderN(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintContext))));
  var _layers = dart.privateName(_engine, "_layers");
  _engine.ContainerLayer = class ContainerLayer extends _engine.Layer {
    get debugLayers() {
      return this[_layers];
    }
    add(child) {
      if (child == null) dart.nullFailed(I[242], 104, 18, "child");
      child.parent = this;
      this[_layers][$add](child);
    }
    preroll(prerollContext, matrix) {
      if (prerollContext == null) dart.nullFailed(I[242], 110, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 110, 55, "matrix");
      this.paintBounds = this.prerollChildren(prerollContext, matrix);
    }
    prerollChildren(context, childMatrix) {
      if (context == null) dart.nullFailed(I[242], 119, 42, "context");
      if (childMatrix == null) dart.nullFailed(I[242], 119, 59, "childMatrix");
      let childPaintBounds = ui.Rect.zero;
      for (let layer of this[_layers]) {
        layer.preroll(context, childMatrix);
        if (dart.test(childPaintBounds.isEmpty)) {
          childPaintBounds = layer.paintBounds;
        } else if (!dart.test(layer.paintBounds.isEmpty)) {
          childPaintBounds = childPaintBounds.expandToInclude(layer.paintBounds);
        }
      }
      return childPaintBounds;
    }
    paintChildren(context) {
      if (context == null) dart.nullFailed(I[242], 133, 35, "context");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 134, 12, "needsPainting");
      for (let layer of this[_layers]) {
        if (dart.test(layer.needsPainting)) {
          layer.paint(context);
        }
      }
    }
  };
  (_engine.ContainerLayer.new = function() {
    this[_layers] = G$.JSArrayOfLayer().of([]);
    dart.global.Object.getPrototypeOf(_engine.ContainerLayer).new.call(this);
    ;
  }).prototype = _engine.ContainerLayer.prototype;
  dart.addRtiResources(_engine.ContainerLayer, ["_engine|ContainerLayer"]);
  dart.setMethodSignature(_engine.ContainerLayer, () => dart.global.Object.setPrototypeOf({
    add: T$9.LayerTovoid(),
    preroll: T$9.PrerollContextAndMatrix4Tovoid(),
    prerollChildren: T$9.PrerollContextAndMatrix4ToRect(),
    paintChildren: T$9.PaintContextTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ContainerLayer))));
  dart.setGetterSignature(_engine.ContainerLayer, () => dart.global.Object.setPrototypeOf({debugLayers: T$9.ListOfLayer()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ContainerLayer))));
  dart.setLibraryUri(_engine.ContainerLayer, I[220]);
  dart.setFieldSignature(_engine.ContainerLayer, () => dart.global.Object.setPrototypeOf({[_layers]: {type: T$9.ListOfLayer(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ContainerLayer))));
  _engine.RootLayer = class RootLayer extends _engine.ContainerLayer {
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 150, 27, "paintContext");
      this.paintChildren(paintContext);
    }
    static ['_#new#tearOff']() {
      return new _engine.RootLayer.new();
    }
  };
  (_engine.RootLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.RootLayer).new.call(this);
    ;
  }).prototype = _engine.RootLayer.prototype;
  dart.addRtiResources(_engine.RootLayer, ["_engine|RootLayer"]);
  dart.setMethodSignature(_engine.RootLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RootLayer))));
  dart.setLibraryUri(_engine.RootLayer, I[220]);
  var _filter$0 = dart.privateName(_engine, "_filter");
  var _blendMode$ = dart.privateName(_engine, "_blendMode");
  _engine.BackdropFilterEngineLayer = class BackdropFilterEngineLayer extends _engine.ContainerLayer {
    static ['_#new#tearOff'](_filter, _blendMode) {
      if (_filter == null) dart.nullFailed(I[242], 157, 34, "_filter");
      if (_blendMode == null) dart.nullFailed(I[242], 157, 48, "_blendMode");
      return new _engine.BackdropFilterEngineLayer.new(_filter, _blendMode);
    }
    preroll(prerollContext, matrix) {
      if (prerollContext == null) dart.nullFailed(I[242], 163, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 163, 55, "matrix");
      let childBounds = this.prerollChildren(prerollContext, matrix);
      this.paintBounds = childBounds.expandToInclude(prerollContext.cullRect);
    }
    paint(paintContext) {
      let t$36514;
      if (paintContext == null) dart.nullFailed(I[242], 169, 27, "paintContext");
      let paint = (t$36514 = new _engine.CkPaint.new(), (() => {
        t$36514.blendMode = this[_blendMode$];
        return t$36514;
      })());
      let currentCanvas = dart.nullCheck(paintContext.leafNodesCanvas);
      currentCanvas.saveLayerWithFilter(this.paintBounds, this[_filter$0], paint);
      paint.dispose();
      this.paintChildren(paintContext);
      currentCanvas.restore();
    }
  };
  (_engine.BackdropFilterEngineLayer.new = function(_filter, _blendMode) {
    if (_filter == null) dart.nullFailed(I[242], 157, 34, "_filter");
    if (_blendMode == null) dart.nullFailed(I[242], 157, 48, "_blendMode");
    this[_filter$0] = _filter;
    this[_blendMode$] = _blendMode;
    dart.global.Object.getPrototypeOf(_engine.BackdropFilterEngineLayer).new.call(this);
    ;
  }).prototype = _engine.BackdropFilterEngineLayer.prototype;
  dart.addRtiResources(_engine.BackdropFilterEngineLayer, ["_engine|BackdropFilterEngineLayer", "ui|BackdropFilterEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.BackdropFilterEngineLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BackdropFilterEngineLayer))));
  dart.setLibraryUri(_engine.BackdropFilterEngineLayer, I[220]);
  dart.setFieldSignature(_engine.BackdropFilterEngineLayer, () => dart.global.Object.setPrototypeOf({
    [_filter$0]: {type: T$9.ImageFilter(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_blendMode$]: {type: T$8.BlendMode(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.BackdropFilterEngineLayer))));
  var _clipPath$ = dart.privateName(_engine, "_clipPath");
  var _clipBehavior$ = dart.privateName(_engine, "_clipBehavior");
  _engine.ClipPathEngineLayer = class ClipPathEngineLayer extends _engine.ContainerLayer {
    static ['_#new#tearOff'](_clipPath, _clipBehavior) {
      if (_clipPath == null) dart.nullFailed(I[242], 190, 28, "_clipPath");
      if (_clipBehavior == null) dart.nullFailed(I[242], 190, 44, "_clipBehavior");
      return new _engine.ClipPathEngineLayer.new(_clipPath, _clipBehavior);
    }
    preroll(prerollContext, matrix) {
      if (prerollContext == null) dart.nullFailed(I[242], 198, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 198, 55, "matrix");
      prerollContext.mutatorsStack.pushClipPath(this[_clipPath$]);
      let childPaintBounds = this.prerollChildren(prerollContext, matrix);
      let clipBounds = this[_clipPath$].getBounds();
      if (dart.test(childPaintBounds.overlaps(clipBounds))) {
        this.paintBounds = childPaintBounds.intersect(clipBounds);
      }
      prerollContext.mutatorsStack.pop();
    }
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 209, 27, "paintContext");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 210, 12, "needsPainting");
      paintContext.internalNodesCanvas.save();
      paintContext.internalNodesCanvas.clipPath(this[_clipPath$], this[_clipBehavior$] != ui.Clip.hardEdge);
      if (this[_clipBehavior$] == ui.Clip.antiAliasWithSaveLayer) {
        paintContext.internalNodesCanvas.saveLayer(this.paintBounds, null);
      }
      this.paintChildren(paintContext);
      if (this[_clipBehavior$] == ui.Clip.antiAliasWithSaveLayer) {
        paintContext.internalNodesCanvas.restore();
      }
      paintContext.internalNodesCanvas.restore();
    }
  };
  (_engine.ClipPathEngineLayer.new = function(_clipPath, _clipBehavior) {
    if (_clipPath == null) dart.nullFailed(I[242], 190, 28, "_clipPath");
    if (_clipBehavior == null) dart.nullFailed(I[242], 190, 44, "_clipBehavior");
    this[_clipPath$] = _clipPath;
    this[_clipBehavior$] = _clipBehavior;
    if (!(_clipBehavior != ui.Clip.none)) dart.assertFailed(null, I[242], 191, 16, "_clipBehavior != ui.Clip.none");
    dart.global.Object.getPrototypeOf(_engine.ClipPathEngineLayer).new.call(this);
    ;
  }).prototype = _engine.ClipPathEngineLayer.prototype;
  dart.addRtiResources(_engine.ClipPathEngineLayer, ["_engine|ClipPathEngineLayer", "ui|ClipPathEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.ClipPathEngineLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClipPathEngineLayer))));
  dart.setLibraryUri(_engine.ClipPathEngineLayer, I[220]);
  dart.setFieldSignature(_engine.ClipPathEngineLayer, () => dart.global.Object.setPrototypeOf({
    [_clipPath$]: {type: T$9.CkPath(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_clipBehavior$]: {type: T$8.Clip(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ClipPathEngineLayer))));
  _engine.ClipRectEngineLayer = class ClipRectEngineLayer extends _engine.ContainerLayer {
    static ['_#new#tearOff'](_clipRect, _clipBehavior) {
      if (_clipRect == null) dart.nullFailed(I[242], 230, 28, "_clipRect");
      if (_clipBehavior == null) dart.nullFailed(I[242], 230, 44, "_clipBehavior");
      return new _engine.ClipRectEngineLayer.new(_clipRect, _clipBehavior);
    }
    preroll(prerollContext, matrix) {
      if (prerollContext == null) dart.nullFailed(I[242], 238, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 238, 55, "matrix");
      prerollContext.mutatorsStack.pushClipRect(this[_clipRect$]);
      let childPaintBounds = this.prerollChildren(prerollContext, matrix);
      if (dart.test(childPaintBounds.overlaps(this[_clipRect$]))) {
        this.paintBounds = childPaintBounds.intersect(this[_clipRect$]);
      }
      prerollContext.mutatorsStack.pop();
    }
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 248, 27, "paintContext");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 249, 12, "needsPainting");
      paintContext.internalNodesCanvas.save();
      paintContext.internalNodesCanvas.clipRect(this[_clipRect$], ui.ClipOp.intersect, this[_clipBehavior$] != ui.Clip.hardEdge);
      if (this[_clipBehavior$] == ui.Clip.antiAliasWithSaveLayer) {
        paintContext.internalNodesCanvas.saveLayer(this[_clipRect$], null);
      }
      this.paintChildren(paintContext);
      if (this[_clipBehavior$] == ui.Clip.antiAliasWithSaveLayer) {
        paintContext.internalNodesCanvas.restore();
      }
      paintContext.internalNodesCanvas.restore();
    }
  };
  (_engine.ClipRectEngineLayer.new = function(_clipRect, _clipBehavior) {
    if (_clipRect == null) dart.nullFailed(I[242], 230, 28, "_clipRect");
    if (_clipBehavior == null) dart.nullFailed(I[242], 230, 44, "_clipBehavior");
    this[_clipRect$] = _clipRect;
    this[_clipBehavior$] = _clipBehavior;
    if (!(_clipBehavior != ui.Clip.none)) dart.assertFailed(null, I[242], 231, 16, "_clipBehavior != ui.Clip.none");
    dart.global.Object.getPrototypeOf(_engine.ClipRectEngineLayer).new.call(this);
    ;
  }).prototype = _engine.ClipRectEngineLayer.prototype;
  dart.addRtiResources(_engine.ClipRectEngineLayer, ["_engine|ClipRectEngineLayer", "ui|ClipRectEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.ClipRectEngineLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClipRectEngineLayer))));
  dart.setLibraryUri(_engine.ClipRectEngineLayer, I[220]);
  dart.setFieldSignature(_engine.ClipRectEngineLayer, () => dart.global.Object.setPrototypeOf({
    [_clipRect$]: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_clipBehavior$]: {type: T$8.Clip(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ClipRectEngineLayer))));
  _engine.ClipRRectEngineLayer = class ClipRRectEngineLayer extends _engine.ContainerLayer {
    static ['_#new#tearOff'](_clipRRect, _clipBehavior) {
      if (_clipRRect == null) dart.nullFailed(I[242], 271, 29, "_clipRRect");
      return new _engine.ClipRRectEngineLayer.new(_clipRRect, _clipBehavior);
    }
    preroll(prerollContext, matrix) {
      if (prerollContext == null) dart.nullFailed(I[242], 279, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 279, 55, "matrix");
      prerollContext.mutatorsStack.pushClipRRect(this[_clipRRect$]);
      let childPaintBounds = this.prerollChildren(prerollContext, matrix);
      if (dart.test(childPaintBounds.overlaps(this[_clipRRect$].outerRect))) {
        this.paintBounds = childPaintBounds.intersect(this[_clipRRect$].outerRect);
      }
      prerollContext.mutatorsStack.pop();
    }
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 289, 27, "paintContext");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 290, 12, "needsPainting");
      paintContext.internalNodesCanvas.save();
      paintContext.internalNodesCanvas.clipRRect(this[_clipRRect$], this[_clipBehavior$] != ui.Clip.hardEdge);
      if (this[_clipBehavior$] == ui.Clip.antiAliasWithSaveLayer) {
        paintContext.internalNodesCanvas.saveLayer(this.paintBounds, null);
      }
      this.paintChildren(paintContext);
      if (this[_clipBehavior$] == ui.Clip.antiAliasWithSaveLayer) {
        paintContext.internalNodesCanvas.restore();
      }
      paintContext.internalNodesCanvas.restore();
    }
  };
  (_engine.ClipRRectEngineLayer.new = function(_clipRRect, _clipBehavior) {
    if (_clipRRect == null) dart.nullFailed(I[242], 271, 29, "_clipRRect");
    this[_clipRRect$] = _clipRRect;
    this[_clipBehavior$] = _clipBehavior;
    if (!(_clipBehavior != ui.Clip.none)) dart.assertFailed(null, I[242], 272, 16, "_clipBehavior != ui.Clip.none");
    dart.global.Object.getPrototypeOf(_engine.ClipRRectEngineLayer).new.call(this);
    ;
  }).prototype = _engine.ClipRRectEngineLayer.prototype;
  dart.addRtiResources(_engine.ClipRRectEngineLayer, ["_engine|ClipRRectEngineLayer", "ui|ClipRRectEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.ClipRRectEngineLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClipRRectEngineLayer))));
  dart.setLibraryUri(_engine.ClipRRectEngineLayer, I[220]);
  dart.setFieldSignature(_engine.ClipRRectEngineLayer, () => dart.global.Object.setPrototypeOf({
    [_clipRRect$]: {type: T$8.RRect(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_clipBehavior$]: {type: T$10.ClipN(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ClipRRectEngineLayer))));
  var _alpha$ = dart.privateName(_engine, "_alpha");
  var _offset$ = dart.privateName(_engine, "_offset");
  _engine.OpacityEngineLayer = class OpacityEngineLayer extends _engine.ContainerLayer {
    static ['_#new#tearOff'](_alpha, _offset) {
      if (_alpha == null) dart.nullFailed(I[242], 309, 27, "_alpha");
      if (_offset == null) dart.nullFailed(I[242], 309, 40, "_offset");
      return new _engine.OpacityEngineLayer.new(_alpha, _offset);
    }
    preroll(prerollContext, matrix) {
      if (prerollContext == null) dart.nullFailed(I[242], 315, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 315, 55, "matrix");
      let childMatrix = _engine.Matrix4.copy(matrix);
      childMatrix.translate(this[_offset$].dx, this[_offset$].dy);
      prerollContext.mutatorsStack.pushTransform(_engine.Matrix4.translationValues(this[_offset$].dx, this[_offset$].dy, 0.0));
      prerollContext.mutatorsStack.pushOpacity(this[_alpha$]);
      super.preroll(prerollContext, childMatrix);
      prerollContext.mutatorsStack.pop();
      prerollContext.mutatorsStack.pop();
      this.paintBounds = this.paintBounds.translate(this[_offset$].dx, this[_offset$].dy);
    }
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 328, 27, "paintContext");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 329, 12, "needsPainting");
      let paint = new _engine.CkPaint.new();
      paint.color = new ui.Color.fromARGB(this[_alpha$], 0, 0, 0);
      paintContext.internalNodesCanvas.save();
      paintContext.internalNodesCanvas.translate(this[_offset$].dx, this[_offset$].dy);
      let saveLayerBounds = this.paintBounds.shift(this[_offset$]._negate());
      paintContext.internalNodesCanvas.saveLayer(saveLayerBounds, paint);
      paint.dispose();
      this.paintChildren(paintContext);
      paintContext.internalNodesCanvas.restore();
      paintContext.internalNodesCanvas.restore();
    }
  };
  (_engine.OpacityEngineLayer.new = function(_alpha, _offset) {
    if (_alpha == null) dart.nullFailed(I[242], 309, 27, "_alpha");
    if (_offset == null) dart.nullFailed(I[242], 309, 40, "_offset");
    this[_alpha$] = _alpha;
    this[_offset$] = _offset;
    dart.global.Object.getPrototypeOf(_engine.OpacityEngineLayer).new.call(this);
    ;
  }).prototype = _engine.OpacityEngineLayer.prototype;
  dart.addRtiResources(_engine.OpacityEngineLayer, ["_engine|OpacityEngineLayer", "ui|OpacityEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.OpacityEngineLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.OpacityEngineLayer))));
  dart.setLibraryUri(_engine.OpacityEngineLayer, I[220]);
  dart.setFieldSignature(_engine.OpacityEngineLayer, () => dart.global.Object.setPrototypeOf({
    [_alpha$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_offset$]: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.OpacityEngineLayer))));
  _engine.TransformEngineLayer = class TransformEngineLayer extends _engine.ContainerLayer {
    static ['_#new#tearOff'](_transform) {
      if (_transform == null) dart.nullFailed(I[242], 351, 29, "_transform");
      return new _engine.TransformEngineLayer.new(_transform);
    }
    preroll(prerollContext, matrix) {
      if (prerollContext == null) dart.nullFailed(I[242], 357, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 357, 55, "matrix");
      let childMatrix = matrix.multiplied(this[_transform$]);
      prerollContext.mutatorsStack.pushTransform(this[_transform$]);
      let childPaintBounds = this.prerollChildren(prerollContext, childMatrix);
      this.paintBounds = this[_transform$].transformRect(childPaintBounds);
      prerollContext.mutatorsStack.pop();
    }
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 367, 27, "paintContext");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 368, 12, "needsPainting");
      paintContext.internalNodesCanvas.save();
      paintContext.internalNodesCanvas.transform(this[_transform$].storage);
      this.paintChildren(paintContext);
      paintContext.internalNodesCanvas.restore();
    }
  };
  (_engine.TransformEngineLayer.new = function(_transform) {
    if (_transform == null) dart.nullFailed(I[242], 351, 29, "_transform");
    this[_transform$] = _transform;
    dart.global.Object.getPrototypeOf(_engine.TransformEngineLayer).new.call(this);
    ;
  }).prototype = _engine.TransformEngineLayer.prototype;
  dart.addRtiResources(_engine.TransformEngineLayer, ["_engine|TransformEngineLayer", "ui|TransformEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.TransformEngineLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TransformEngineLayer))));
  dart.setLibraryUri(_engine.TransformEngineLayer, I[220]);
  dart.setFieldSignature(_engine.TransformEngineLayer, () => dart.global.Object.setPrototypeOf({[_transform$]: {type: T$9.Matrix4(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TransformEngineLayer))));
  _engine.OffsetEngineLayer = class OffsetEngineLayer extends _engine.TransformEngineLayer {
    static ['_#new#tearOff'](dx, dy) {
      if (dx == null) dart.nullFailed(I[242], 384, 28, "dx");
      if (dy == null) dart.nullFailed(I[242], 384, 39, "dy");
      return new _engine.OffsetEngineLayer.new(dx, dy);
    }
  };
  (_engine.OffsetEngineLayer.new = function(dx, dy) {
    if (dx == null) dart.nullFailed(I[242], 384, 28, "dx");
    if (dy == null) dart.nullFailed(I[242], 384, 39, "dy");
    dart.global.Object.getPrototypeOf(_engine.OffsetEngineLayer).new.call(this, _engine.Matrix4.translationValues(dx, dy, 0.0));
    ;
  }).prototype = _engine.OffsetEngineLayer.prototype;
  dart.addRtiResources(_engine.OffsetEngineLayer, ["_engine|OffsetEngineLayer", "ui|OffsetEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.OffsetEngineLayer, I[220]);
  _engine.ImageFilterEngineLayer = class ImageFilterEngineLayer extends _engine.ContainerLayer {
    static ['_#new#tearOff'](_filter, _offset) {
      if (_filter == null) dart.nullFailed(I[242], 391, 31, "_filter");
      if (_offset == null) dart.nullFailed(I[242], 391, 45, "_offset");
      return new _engine.ImageFilterEngineLayer.new(_filter, _offset);
    }
    preroll(prerollContext, matrix) {
      if (prerollContext == null) dart.nullFailed(I[242], 397, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 397, 55, "matrix");
      let childMatrix = _engine.Matrix4.copy(matrix);
      childMatrix.translate(this[_offset$].dx, this[_offset$].dy);
      prerollContext.mutatorsStack.pushTransform(_engine.Matrix4.translationValues(this[_offset$].dx, this[_offset$].dy, 0.0));
      let convertible = null;
      if (T$9.ColorFilter()[_is](this[_filter$0])) {
        convertible = dart.nullCheck(_engine.createCkColorFilter(T$9.EngineColorFilter()[_as](this[_filter$0])));
      } else {
        convertible = T$9.CkManagedSkImageFilterConvertible()[_as](this[_filter$0]);
      }
      let childPaintBounds = this.prerollChildren(prerollContext, childMatrix);
      convertible.imageFilter(dart.fn(filter => {
        if (filter == null) dart.nullFailed(I[242], 410, 44, "filter");
        if (T$9.ColorFilter()[_is](this[_filter$0])) {
          this.paintBounds = childPaintBounds;
        } else {
          this.paintBounds = _engine.rectFromSkIRect(_engine['SkImageFilterExtension|getOutputBounds'](filter, _engine.toSkRect(childPaintBounds)));
        }
      }, T$9.SkImageFilterTovoid()));
      prerollContext.mutatorsStack.pop();
    }
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 424, 27, "paintContext");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 425, 12, "needsPainting");
      paintContext.internalNodesCanvas.save();
      paintContext.internalNodesCanvas.translate(this[_offset$].dx, this[_offset$].dy);
      paintContext.internalNodesCanvas.clipRect(this.paintBounds, ui.ClipOp.intersect, false);
      let paint = new _engine.CkPaint.new();
      paint.imageFilter = this[_filter$0];
      paintContext.internalNodesCanvas.saveLayer(this.paintBounds, paint);
      paint.dispose();
      this.paintChildren(paintContext);
      paintContext.internalNodesCanvas.restore();
      paintContext.internalNodesCanvas.restore();
    }
  };
  (_engine.ImageFilterEngineLayer.new = function(_filter, _offset) {
    if (_filter == null) dart.nullFailed(I[242], 391, 31, "_filter");
    if (_offset == null) dart.nullFailed(I[242], 391, 45, "_offset");
    this[_filter$0] = _filter;
    this[_offset$] = _offset;
    dart.global.Object.getPrototypeOf(_engine.ImageFilterEngineLayer).new.call(this);
    ;
  }).prototype = _engine.ImageFilterEngineLayer.prototype;
  dart.addRtiResources(_engine.ImageFilterEngineLayer, ["_engine|ImageFilterEngineLayer", "ui|ImageFilterEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.ImageFilterEngineLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ImageFilterEngineLayer))));
  dart.setLibraryUri(_engine.ImageFilterEngineLayer, I[220]);
  dart.setFieldSignature(_engine.ImageFilterEngineLayer, () => dart.global.Object.setPrototypeOf({
    [_offset$]: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_filter$0]: {type: T$9.ImageFilter(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ImageFilterEngineLayer))));
  var shader$ = dart.privateName(_engine, "ShaderMaskEngineLayer.shader");
  var maskRect$ = dart.privateName(_engine, "ShaderMaskEngineLayer.maskRect");
  var blendMode$0 = dart.privateName(_engine, "ShaderMaskEngineLayer.blendMode");
  var filterQuality$ = dart.privateName(_engine, "ShaderMaskEngineLayer.filterQuality");
  _engine.ShaderMaskEngineLayer = class ShaderMaskEngineLayer extends _engine.ContainerLayer {
    get shader() {
      return this[shader$];
    }
    set shader(value) {
      super.shader = value;
    }
    get maskRect() {
      return this[maskRect$];
    }
    set maskRect(value) {
      super.maskRect = value;
    }
    get blendMode() {
      return this[blendMode$0];
    }
    set blendMode(value) {
      super.blendMode = value;
    }
    get filterQuality() {
      return this[filterQuality$];
    }
    set filterQuality(value) {
      super.filterQuality = value;
    }
    static ['_#new#tearOff'](shader, maskRect, blendMode, filterQuality) {
      if (shader == null) dart.nullFailed(I[242], 446, 12, "shader");
      if (maskRect == null) dart.nullFailed(I[242], 446, 25, "maskRect");
      if (blendMode == null) dart.nullFailed(I[242], 446, 40, "blendMode");
      if (filterQuality == null) dart.nullFailed(I[242], 446, 56, "filterQuality");
      return new _engine.ShaderMaskEngineLayer.new(shader, maskRect, blendMode, filterQuality);
    }
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 454, 27, "paintContext");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 455, 12, "needsPainting");
      paintContext.internalNodesCanvas.saveLayer(this.paintBounds, null);
      this.paintChildren(paintContext);
      let paint = new _engine.CkPaint.new();
      paint.shader = this.shader;
      paint.blendMode = this.blendMode;
      paint.filterQuality = this.filterQuality;
      dart.nullCheck(paintContext.leafNodesCanvas).save();
      dart.nullCheck(paintContext.leafNodesCanvas).translate(this.maskRect.left, this.maskRect.top);
      dart.nullCheck(paintContext.leafNodesCanvas).drawRect(new ui.Rect.fromLTWH(0.0, 0.0, this.maskRect.width, this.maskRect.height), paint);
      paint.dispose();
      dart.nullCheck(paintContext.leafNodesCanvas).restore();
      paintContext.internalNodesCanvas.restore();
    }
  };
  (_engine.ShaderMaskEngineLayer.new = function(shader, maskRect, blendMode, filterQuality) {
    if (shader == null) dart.nullFailed(I[242], 446, 12, "shader");
    if (maskRect == null) dart.nullFailed(I[242], 446, 25, "maskRect");
    if (blendMode == null) dart.nullFailed(I[242], 446, 40, "blendMode");
    if (filterQuality == null) dart.nullFailed(I[242], 446, 56, "filterQuality");
    this[shader$] = shader;
    this[maskRect$] = maskRect;
    this[blendMode$0] = blendMode;
    this[filterQuality$] = filterQuality;
    dart.global.Object.getPrototypeOf(_engine.ShaderMaskEngineLayer).new.call(this);
    ;
  }).prototype = _engine.ShaderMaskEngineLayer.prototype;
  dart.addRtiResources(_engine.ShaderMaskEngineLayer, ["_engine|ShaderMaskEngineLayer", "ui|ShaderMaskEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.ShaderMaskEngineLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ShaderMaskEngineLayer))));
  dart.setLibraryUri(_engine.ShaderMaskEngineLayer, I[220]);
  dart.setFieldSignature(_engine.ShaderMaskEngineLayer, () => dart.global.Object.setPrototypeOf({
    shader: {type: T$10.Shader(), isConst: false, isFinal: true, libraryUri: I[198]},
    maskRect: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    blendMode: {type: T$8.BlendMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    filterQuality: {type: T$9.FilterQuality(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ShaderMaskEngineLayer))));
  var picture$ = dart.privateName(_engine, "PictureLayer.picture");
  var offset$3 = dart.privateName(_engine, "PictureLayer.offset");
  var isComplex$ = dart.privateName(_engine, "PictureLayer.isComplex");
  var willChange$ = dart.privateName(_engine, "PictureLayer.willChange");
  _engine.PictureLayer = class PictureLayer extends _engine.Layer {
    get picture() {
      return this[picture$];
    }
    set picture(value) {
      super.picture = value;
    }
    get offset() {
      return this[offset$3];
    }
    set offset(value) {
      super.offset = value;
    }
    get isComplex() {
      return this[isComplex$];
    }
    set isComplex(value) {
      super.isComplex = value;
    }
    get willChange() {
      return this[willChange$];
    }
    set willChange(value) {
      super.willChange = value;
    }
    static ['_#new#tearOff'](picture, offset, isComplex, willChange) {
      if (picture == null) dart.nullFailed(I[242], 479, 21, "picture");
      if (offset == null) dart.nullFailed(I[242], 479, 35, "offset");
      if (isComplex == null) dart.nullFailed(I[242], 479, 48, "isComplex");
      if (willChange == null) dart.nullFailed(I[242], 479, 64, "willChange");
      return new _engine.PictureLayer.new(picture, offset, isComplex, willChange);
    }
    preroll(prerollContext, matrix) {
      if (prerollContext == null) dart.nullFailed(I[242], 494, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 494, 55, "matrix");
      this.paintBounds = this.picture.cullRect.shift(this.offset);
    }
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 499, 27, "paintContext");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 500, 12, "needsPainting");
      dart.nullCheck(paintContext.leafNodesCanvas).save();
      dart.nullCheck(paintContext.leafNodesCanvas).translate(this.offset.dx, this.offset.dy);
      dart.nullCheck(paintContext.leafNodesCanvas).drawPicture(this.picture);
      dart.nullCheck(paintContext.leafNodesCanvas).restore();
    }
  };
  (_engine.PictureLayer.new = function(picture, offset, isComplex, willChange) {
    if (picture == null) dart.nullFailed(I[242], 479, 21, "picture");
    if (offset == null) dart.nullFailed(I[242], 479, 35, "offset");
    if (isComplex == null) dart.nullFailed(I[242], 479, 48, "isComplex");
    if (willChange == null) dart.nullFailed(I[242], 479, 64, "willChange");
    this[picture$] = picture;
    this[offset$3] = offset;
    this[isComplex$] = isComplex;
    this[willChange$] = willChange;
    dart.global.Object.getPrototypeOf(_engine.PictureLayer).new.call(this);
    ;
  }).prototype = _engine.PictureLayer.prototype;
  dart.addRtiResources(_engine.PictureLayer, ["_engine|PictureLayer"]);
  dart.setMethodSignature(_engine.PictureLayer, () => dart.global.Object.setPrototypeOf({
    preroll: T$9.PrerollContextAndMatrix4Tovoid(),
    paint: T$9.PaintContextTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PictureLayer))));
  dart.setLibraryUri(_engine.PictureLayer, I[220]);
  dart.setFieldSignature(_engine.PictureLayer, () => dart.global.Object.setPrototypeOf({
    picture: {type: T$9.CkPicture(), isConst: false, isFinal: true, libraryUri: I[220]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    isComplex: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    willChange: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PictureLayer))));
  var filter$ = dart.privateName(_engine, "ColorFilterEngineLayer.filter");
  _engine.ColorFilterEngineLayer = class ColorFilterEngineLayer extends _engine.ContainerLayer {
    get filter() {
      return this[filter$];
    }
    set filter(value) {
      super.filter = value;
    }
    static ['_#new#tearOff'](filter) {
      if (filter == null) dart.nullFailed(I[242], 513, 31, "filter");
      return new _engine.ColorFilterEngineLayer.new(filter);
    }
    paint(paintContext) {
      if (paintContext == null) dart.nullFailed(I[242], 518, 27, "paintContext");
      if (!dart.test(this.needsPainting)) dart.assertFailed(null, I[242], 519, 12, "needsPainting");
      let paint = new _engine.CkPaint.new();
      paint.colorFilter = this.filter;
      paintContext.internalNodesCanvas.save();
      paintContext.internalNodesCanvas.clipRect(this.paintBounds, ui.ClipOp.intersect, false);
      paintContext.internalNodesCanvas.saveLayer(this.paintBounds, paint);
      this.paintChildren(paintContext);
      paintContext.internalNodesCanvas.restore();
      paintContext.internalNodesCanvas.restore();
      paint.dispose();
    }
  };
  (_engine.ColorFilterEngineLayer.new = function(filter) {
    if (filter == null) dart.nullFailed(I[242], 513, 31, "filter");
    this[filter$] = filter;
    dart.global.Object.getPrototypeOf(_engine.ColorFilterEngineLayer).new.call(this);
    ;
  }).prototype = _engine.ColorFilterEngineLayer.prototype;
  dart.addRtiResources(_engine.ColorFilterEngineLayer, ["_engine|ColorFilterEngineLayer", "ui|ColorFilterEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.ColorFilterEngineLayer, () => dart.global.Object.setPrototypeOf({paint: T$9.PaintContextTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ColorFilterEngineLayer))));
  dart.setLibraryUri(_engine.ColorFilterEngineLayer, I[220]);
  dart.setFieldSignature(_engine.ColorFilterEngineLayer, () => dart.global.Object.setPrototypeOf({filter: {type: T$9.ColorFilter(), isConst: false, isFinal: true, libraryUri: I[198]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ColorFilterEngineLayer))));
  var viewId$2 = dart.privateName(_engine, "PlatformViewLayer.viewId");
  var offset$4 = dart.privateName(_engine, "PlatformViewLayer.offset");
  var width$2 = dart.privateName(_engine, "PlatformViewLayer.width");
  var height$1 = dart.privateName(_engine, "PlatformViewLayer.height");
  _engine.PlatformViewLayer = class PlatformViewLayer extends _engine.Layer {
    get viewId() {
      return this[viewId$2];
    }
    set viewId(value) {
      super.viewId = value;
    }
    get offset() {
      return this[offset$4];
    }
    set offset(value) {
      super.offset = value;
    }
    get width() {
      return this[width$2];
    }
    set width(value) {
      super.width = value;
    }
    get height() {
      return this[height$1];
    }
    set height(value) {
      super.height = value;
    }
    static ['_#new#tearOff'](viewId, offset, width, height) {
      if (viewId == null) dart.nullFailed(I[242], 544, 26, "viewId");
      if (offset == null) dart.nullFailed(I[242], 544, 39, "offset");
      if (width == null) dart.nullFailed(I[242], 544, 52, "width");
      if (height == null) dart.nullFailed(I[242], 544, 64, "height");
      return new _engine.PlatformViewLayer.new(viewId, offset, width, height);
    }
    preroll(prerollContext, matrix) {
      let t$36514;
      if (prerollContext == null) dart.nullFailed(I[242], 552, 31, "prerollContext");
      if (matrix == null) dart.nullFailed(I[242], 552, 55, "matrix");
      this.paintBounds = new ui.Rect.fromLTWH(this.offset.dx, this.offset.dy, this.width, this.height);
      t$36514 = prerollContext.viewEmbedder;
      t$36514 == null ? null : t$36514.prerollCompositeEmbeddedView(this.viewId, new _engine.EmbeddedViewParams.new(this.offset, new ui.Size.new(this.width, this.height), prerollContext.mutatorsStack));
    }
    paint(paintContext) {
      let t$36514;
      if (paintContext == null) dart.nullFailed(I[242], 568, 27, "paintContext");
      let canvas = (t$36514 = paintContext.viewEmbedder, t$36514 == null ? null : t$36514.compositeEmbeddedView(this.viewId));
      if (canvas != null) {
        paintContext.leafNodesCanvas = canvas;
      }
    }
  };
  (_engine.PlatformViewLayer.new = function(viewId, offset, width, height) {
    if (viewId == null) dart.nullFailed(I[242], 544, 26, "viewId");
    if (offset == null) dart.nullFailed(I[242], 544, 39, "offset");
    if (width == null) dart.nullFailed(I[242], 544, 52, "width");
    if (height == null) dart.nullFailed(I[242], 544, 64, "height");
    this[viewId$2] = viewId;
    this[offset$4] = offset;
    this[width$2] = width;
    this[height$1] = height;
    dart.global.Object.getPrototypeOf(_engine.PlatformViewLayer).new.call(this);
    ;
  }).prototype = _engine.PlatformViewLayer.prototype;
  dart.addRtiResources(_engine.PlatformViewLayer, ["_engine|PlatformViewLayer"]);
  dart.setMethodSignature(_engine.PlatformViewLayer, () => dart.global.Object.setPrototypeOf({
    preroll: T$9.PrerollContextAndMatrix4Tovoid(),
    paint: T$9.PaintContextTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PlatformViewLayer))));
  dart.setLibraryUri(_engine.PlatformViewLayer, I[220]);
  dart.setFieldSignature(_engine.PlatformViewLayer, () => dart.global.Object.setPrototypeOf({
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    width: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformViewLayer))));
  var layerTree = dart.privateName(_engine, "LayerScene.layerTree");
  _engine.LayerScene = class LayerScene extends core.Object {
    get layerTree() {
      return this[layerTree];
    }
    set layerTree(value) {
      super.layerTree = value;
    }
    static ['_#new#tearOff'](rootLayer) {
      if (rootLayer == null) dart.nullFailed(I[243], 10, 24, "rootLayer");
      return new _engine.LayerScene.new(rootLayer);
    }
    dispose() {
    }
    toImage(width, height) {
      if (width == null) dart.nullFailed(I[243], 18, 32, "width");
      if (height == null) dart.nullFailed(I[243], 18, 43, "height");
      let picture = this.layerTree.flatten(new ui.Size.new(width[$toDouble](), height[$toDouble]()));
      return picture.toImage(width, height);
    }
    toImageSync(width, height) {
      if (width == null) dart.nullFailed(I[243], 27, 28, "width");
      if (height == null) dart.nullFailed(I[243], 27, 39, "height");
      let picture = this.layerTree.flatten(new ui.Size.new(width[$toDouble](), height[$toDouble]()));
      return picture.toImageSync(width, height);
    }
  };
  (_engine.LayerScene.new = function(rootLayer) {
    if (rootLayer == null) dart.nullFailed(I[243], 10, 24, "rootLayer");
    this[layerTree] = new _engine.LayerTree.new(rootLayer);
    ;
  }).prototype = _engine.LayerScene.prototype;
  dart.addRtiResources(_engine.LayerScene, ["_engine|LayerScene", "ui|Scene"]);
  dart.setMethodSignature(_engine.LayerScene, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    toImage: T$10.intAndintToFutureOfImage(),
    toImageSync: T$10.intAndintToImage()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LayerScene))));
  dart.setLibraryUri(_engine.LayerScene, I[220]);
  dart.setFieldSignature(_engine.LayerScene, () => dart.global.Object.setPrototypeOf({layerTree: {type: T$10.LayerTree(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LayerScene))));
  var rootLayer = dart.privateName(_engine, "LayerSceneBuilder.rootLayer");
  var __LayerSceneBuilder_currentLayer = dart.privateName(_engine, "_#LayerSceneBuilder#currentLayer");
  var __LayerSceneBuilder_currentLayer_isSet = dart.privateName(_engine, "_#LayerSceneBuilder#currentLayer#isSet");
  _engine.LayerSceneBuilder = class LayerSceneBuilder extends core.Object {
    get rootLayer() {
      return this[rootLayer];
    }
    set rootLayer(value) {
      super.rootLayer = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.LayerSceneBuilder.new();
    }
    get currentLayer() {
      let t$36514;
      return dart.test(this[__LayerSceneBuilder_currentLayer_isSet]) ? (t$36514 = this[__LayerSceneBuilder_currentLayer], t$36514) : dart.throw(new _internal.LateError.fieldNI("currentLayer"));
    }
    set currentLayer(currentLayer$35param) {
      if (currentLayer$35param == null) dart.nullFailed(I[243], 42, 23, "currentLayer#param");
      this[__LayerSceneBuilder_currentLayer_isSet] = true;
      this[__LayerSceneBuilder_currentLayer] = currentLayer$35param;
    }
    addPerformanceOverlay(enabledOptions, bounds) {
      if (enabledOptions == null) dart.nullFailed(I[243], 45, 34, "enabledOptions");
      if (bounds == null) dart.nullFailed(I[243], 45, 58, "bounds");
      dart.throw(new core.UnimplementedError.new());
    }
    addPicture(offset, picture, opts) {
      if (offset == null) dart.nullFailed(I[243], 52, 15, "offset");
      if (picture == null) dart.nullFailed(I[243], 53, 16, "picture");
      let isComplexHint = opts && 'isComplexHint' in opts ? opts.isComplexHint : false;
      if (isComplexHint == null) dart.nullFailed(I[243], 54, 10, "isComplexHint");
      let willChangeHint = opts && 'willChangeHint' in opts ? opts.willChangeHint : false;
      if (willChangeHint == null) dart.nullFailed(I[243], 55, 10, "willChangeHint");
      this.currentLayer.add(new _engine.PictureLayer.new(T$9.CkPicture()[_as](picture), offset, isComplexHint, willChangeHint));
    }
    addRetained(retainedLayer) {
      if (retainedLayer == null) dart.nullFailed(I[243], 62, 35, "retainedLayer");
      this.currentLayer.add(T$9.Layer()[_as](retainedLayer));
    }
    addTexture(textureId, opts) {
      if (textureId == null) dart.nullFailed(I[243], 68, 9, "textureId");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[243], 69, 15, "offset");
      let width = opts && 'width' in opts ? opts.width : 0;
      if (width == null) dart.nullFailed(I[243], 70, 12, "width");
      let height = opts && 'height' in opts ? opts.height : 0;
      if (height == null) dart.nullFailed(I[243], 71, 12, "height");
      let freeze = opts && 'freeze' in opts ? opts.freeze : false;
      if (freeze == null) dart.nullFailed(I[243], 72, 10, "freeze");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[594] || CT.C594;
      if (filterQuality == null) dart.nullFailed(I[243], 73, 22, "filterQuality");
    }
    addPlatformView(viewId, opts) {
      if (viewId == null) dart.nullFailed(I[243], 80, 9, "viewId");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[243], 81, 15, "offset");
      let width = opts && 'width' in opts ? opts.width : 0;
      if (width == null) dart.nullFailed(I[243], 82, 12, "width");
      let height = opts && 'height' in opts ? opts.height : 0;
      if (height == null) dart.nullFailed(I[243], 83, 12, "height");
      this.currentLayer.add(new _engine.PlatformViewLayer.new(viewId, offset, width, height));
    }
    build() {
      return new _engine.LayerScene.new(this.rootLayer);
    }
    pop() {
      if (dart.equals(this.currentLayer, this.rootLayer)) {
        return;
      }
      this.currentLayer = dart.nullCheck(this.currentLayer.parent);
    }
    pushBackdropFilter(filter, opts) {
      if (filter == null) dart.nullFailed(I[243], 104, 20, "filter");
      let blendMode = opts && 'blendMode' in opts ? opts.blendMode : C[555] || CT.C555;
      if (blendMode == null) dart.nullFailed(I[243], 105, 18, "blendMode");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$10.BackdropFilterEngineLayer(), new _engine.BackdropFilterEngineLayer.new(filter, blendMode));
    }
    pushClipPath(path, opts) {
      if (path == null) dart.nullFailed(I[243], 116, 13, "path");
      let clipBehavior = opts && 'clipBehavior' in opts ? opts.clipBehavior : C[584] || CT.C584;
      if (clipBehavior == null) dart.nullFailed(I[243], 117, 13, "clipBehavior");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$10.ClipPathEngineLayer(), new _engine.ClipPathEngineLayer.new(T$9.CkPath()[_as](path), clipBehavior));
    }
    pushClipRRect(rrect, opts) {
      if (rrect == null) dart.nullFailed(I[243], 126, 14, "rrect");
      let clipBehavior = opts && 'clipBehavior' in opts ? opts.clipBehavior : null;
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$10.ClipRRectEngineLayer(), new _engine.ClipRRectEngineLayer.new(rrect, clipBehavior));
    }
    pushClipRect(rect, opts) {
      if (rect == null) dart.nullFailed(I[243], 136, 13, "rect");
      let clipBehavior = opts && 'clipBehavior' in opts ? opts.clipBehavior : C[584] || CT.C584;
      if (clipBehavior == null) dart.nullFailed(I[243], 137, 13, "clipBehavior");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$10.ClipRectEngineLayer(), new _engine.ClipRectEngineLayer.new(rect, clipBehavior));
    }
    pushColorFilter(filter, opts) {
      if (filter == null) dart.nullFailed(I[243], 146, 20, "filter");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$10.ColorFilterEngineLayer(), new _engine.ColorFilterEngineLayer.new(filter));
    }
    pushImageFilter(filter, opts) {
      if (filter == null) dart.nullFailed(I[243], 154, 20, "filter");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[243], 156, 15, "offset");
      return this.pushLayer(T$10.ImageFilterEngineLayer(), new _engine.ImageFilterEngineLayer.new(filter, offset));
    }
    pushOffset(dx, dy, opts) {
      if (dx == null) dart.nullFailed(I[243], 163, 12, "dx");
      if (dy == null) dart.nullFailed(I[243], 164, 12, "dy");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$10.OffsetEngineLayer(), new _engine.OffsetEngineLayer.new(dx, dy));
    }
    pushOpacity(alpha, opts) {
      if (alpha == null) dart.nullFailed(I[243], 172, 9, "alpha");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[243], 174, 15, "offset");
      return this.pushLayer(T$10.OpacityEngineLayer(), new _engine.OpacityEngineLayer.new(alpha, offset));
    }
    pushShaderMask(shader, maskRect, blendMode, opts) {
      if (shader == null) dart.nullFailed(I[243], 181, 15, "shader");
      if (maskRect == null) dart.nullFailed(I[243], 182, 13, "maskRect");
      if (blendMode == null) dart.nullFailed(I[243], 183, 18, "blendMode");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[594] || CT.C594;
      if (filterQuality == null) dart.nullFailed(I[243], 185, 22, "filterQuality");
      return this.pushLayer(T$10.ShaderMaskEngineLayer(), new _engine.ShaderMaskEngineLayer.new(shader, maskRect, blendMode, filterQuality));
    }
    pushTransform(matrix4, opts) {
      if (matrix4 == null) dart.nullFailed(I[243], 193, 17, "matrix4");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      let matrix = new _engine.Matrix4.fromFloat32List(_engine.toMatrix32(matrix4));
      return this.pushLayer(T$10.TransformEngineLayer(), new _engine.TransformEngineLayer.new(matrix));
    }
    pushLayer(T, layer) {
      if (layer == null) dart.nullFailed(I[243], 200, 43, "layer");
      this.currentLayer.add(layer);
      this.currentLayer = layer;
      return layer;
    }
    setProperties(width, height, insetTop, insetRight, insetBottom, insetLeft, focusable) {
      if (width == null) dart.nullFailed(I[243], 208, 12, "width");
      if (height == null) dart.nullFailed(I[243], 209, 12, "height");
      if (insetTop == null) dart.nullFailed(I[243], 210, 12, "insetTop");
      if (insetRight == null) dart.nullFailed(I[243], 211, 12, "insetRight");
      if (insetBottom == null) dart.nullFailed(I[243], 212, 12, "insetBottom");
      if (insetLeft == null) dart.nullFailed(I[243], 213, 12, "insetLeft");
      if (focusable == null) dart.nullFailed(I[243], 214, 10, "focusable");
      dart.throw(new core.UnimplementedError.new());
    }
  };
  (_engine.LayerSceneBuilder.new = function() {
    this[__LayerSceneBuilder_currentLayer] = null;
    this[__LayerSceneBuilder_currentLayer_isSet] = false;
    this[rootLayer] = new _engine.RootLayer.new();
    this.currentLayer = this.rootLayer;
  }).prototype = _engine.LayerSceneBuilder.prototype;
  dart.addRtiResources(_engine.LayerSceneBuilder, ["_engine|LayerSceneBuilder", "ui|SceneBuilder"]);
  dart.setMethodSignature(_engine.LayerSceneBuilder, () => dart.global.Object.setPrototypeOf({
    addPerformanceOverlay: T$10.intAndRectTovoid(),
    addPicture: T$10.OffsetAndPicture__Tovoid(),
    addRetained: T$10.EngineLayerTovoid(),
    addTexture: T$10.int__Tovoid(),
    addPlatformView: T$10.int__Tovoid$1(),
    build: T$10.VoidToLayerScene(),
    pop: T$.VoidTovoid(),
    pushBackdropFilter: T$10.ImageFilter__ToBackdropFilterEngineLayer(),
    pushClipPath: T$10.Path__ToClipPathEngineLayer(),
    pushClipRRect: T$10.RRect__ToClipRRectEngineLayer(),
    pushClipRect: T$10.Rect__ToClipRectEngineLayer(),
    pushColorFilter: T$10.ColorFilter__ToColorFilterEngineLayer(),
    pushImageFilter: T$10.ImageFilter__ToImageFilterEngineLayer(),
    pushOffset: T$10.doubleAnddouble__ToOffsetEngineLayer(),
    pushOpacity: T$10.int__ToOpacityEngineLayer(),
    pushShaderMask: T$10.ShaderAndRectAndBlendMode__ToShaderMaskEngineLayer(),
    pushTransform: T$10.Float64List__ToTransformEngineLayer(),
    pushLayer: T$10.TToT$2(),
    setProperties: T$10.doubleAnddoubleAnddouble__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LayerSceneBuilder))));
  dart.setMethodsDefaultTypeArgSignature(_engine.LayerSceneBuilder, () => dart.global.Object.setPrototypeOf({pushLayer: [T$10.ContainerLayer()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_engine.LayerSceneBuilder))));
  dart.setGetterSignature(_engine.LayerSceneBuilder, () => dart.global.Object.setPrototypeOf({currentLayer: T$10.ContainerLayer()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.LayerSceneBuilder))));
  dart.setSetterSignature(_engine.LayerSceneBuilder, () => dart.global.Object.setPrototypeOf({currentLayer: T$10.ContainerLayer()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.LayerSceneBuilder))));
  dart.setLibraryUri(_engine.LayerSceneBuilder, I[220]);
  dart.setFieldSignature(_engine.LayerSceneBuilder, () => dart.global.Object.setPrototypeOf({
    rootLayer: {type: T$10.RootLayer(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__LayerSceneBuilder_currentLayer]: {type: T$9.ContainerLayerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__LayerSceneBuilder_currentLayer_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LayerSceneBuilder))));
  var rootLayer$ = dart.privateName(_engine, "LayerTree.rootLayer");
  var devicePixelRatio = dart.privateName(_engine, "LayerTree.devicePixelRatio");
  _engine.LayerTree = class LayerTree extends core.Object {
    get rootLayer() {
      return this[rootLayer$];
    }
    set rootLayer(value) {
      super.rootLayer = value;
    }
    get devicePixelRatio() {
      return this[devicePixelRatio];
    }
    set devicePixelRatio(value) {
      this[devicePixelRatio] = value;
    }
    static ['_#new#tearOff'](rootLayer) {
      if (rootLayer == null) dart.nullFailed(I[244], 10, 18, "rootLayer");
      return new _engine.LayerTree.new(rootLayer);
    }
    preroll(frame, opts) {
      if (frame == null) dart.nullFailed(I[244], 24, 22, "frame");
      let ignoreRasterCache = opts && 'ignoreRasterCache' in opts ? opts.ignoreRasterCache : false;
      if (ignoreRasterCache == null) dart.nullFailed(I[244], 24, 35, "ignoreRasterCache");
      let context = new _engine.PrerollContext.new(dart.test(ignoreRasterCache) ? null : frame.rasterCache, frame.viewEmbedder);
      this.rootLayer.preroll(context, new _engine.Matrix4.identity());
    }
    paint(frame, opts) {
      if (frame == null) dart.nullFailed(I[244], 36, 20, "frame");
      let ignoreRasterCache = opts && 'ignoreRasterCache' in opts ? opts.ignoreRasterCache : false;
      if (ignoreRasterCache == null) dart.nullFailed(I[244], 36, 33, "ignoreRasterCache");
      let internalNodesCanvas = new _engine.CkNWayCanvas.new();
      internalNodesCanvas.addCanvas(frame.canvas);
      let overlayCanvases = dart.nullCheck(frame.viewEmbedder).getOverlayCanvases();
      overlayCanvases[$forEach](dart.bind(internalNodesCanvas, 'addCanvas'));
      let context = new _engine.PaintContext.new(internalNodesCanvas, frame.canvas, dart.test(ignoreRasterCache) ? null : frame.rasterCache, frame.viewEmbedder);
      if (dart.test(this.rootLayer.needsPainting)) {
        this.rootLayer.paint(context);
      }
    }
    flatten(size) {
      if (size == null) dart.nullFailed(I[244], 56, 30, "size");
      let recorder = new _engine.CkPictureRecorder.new();
      let canvas = recorder.beginRecording(ui.Offset.zero['&'](size));
      let prerollContext = new _engine.PrerollContext.new(null, null);
      this.rootLayer.preroll(prerollContext, new _engine.Matrix4.identity());
      let internalNodesCanvas = new _engine.CkNWayCanvas.new();
      internalNodesCanvas.addCanvas(canvas);
      let paintContext = new _engine.PaintContext.new(internalNodesCanvas, canvas, null, null);
      if (dart.test(this.rootLayer.needsPainting)) {
        this.rootLayer.paint(paintContext);
      }
      return recorder.endRecording();
    }
  };
  (_engine.LayerTree.new = function(rootLayer) {
    if (rootLayer == null) dart.nullFailed(I[244], 10, 18, "rootLayer");
    this[devicePixelRatio] = null;
    this[rootLayer$] = rootLayer;
    ;
  }).prototype = _engine.LayerTree.prototype;
  dart.addRtiResources(_engine.LayerTree, ["_engine|LayerTree"]);
  dart.setMethodSignature(_engine.LayerTree, () => dart.global.Object.setPrototypeOf({
    preroll: T$10.Frame__Tovoid(),
    paint: T$10.Frame__Tovoid(),
    flatten: T$10.SizeToPicture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LayerTree))));
  dart.setLibraryUri(_engine.LayerTree, I[220]);
  dart.setFieldSignature(_engine.LayerTree, () => dart.global.Object.setPrototypeOf({
    rootLayer: {type: T$10.RootLayer(), isConst: false, isFinal: true, libraryUri: I[220]},
    devicePixelRatio: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LayerTree))));
  var canvas$ = dart.privateName(_engine, "Frame.canvas");
  var rasterCache$1 = dart.privateName(_engine, "Frame.rasterCache");
  var viewEmbedder$1 = dart.privateName(_engine, "Frame.viewEmbedder");
  _engine.Frame = class Frame extends core.Object {
    get canvas() {
      return this[canvas$];
    }
    set canvas(value) {
      super.canvas = value;
    }
    get rasterCache() {
      return this[rasterCache$1];
    }
    set rasterCache(value) {
      super.rasterCache = value;
    }
    get viewEmbedder() {
      return this[viewEmbedder$1];
    }
    set viewEmbedder(value) {
      super.viewEmbedder = value;
    }
    static ['_#new#tearOff'](canvas, rasterCache, viewEmbedder) {
      if (canvas == null) dart.nullFailed(I[244], 75, 14, "canvas");
      return new _engine.Frame.new(canvas, rasterCache, viewEmbedder);
    }
    raster(layerTree, opts) {
      if (layerTree == null) dart.nullFailed(I[244], 87, 25, "layerTree");
      let ignoreRasterCache = opts && 'ignoreRasterCache' in opts ? opts.ignoreRasterCache : false;
      if (ignoreRasterCache == null) dart.nullFailed(I[244], 87, 42, "ignoreRasterCache");
      _engine.timeAction(T$.void(), "preroll_frame", dart.fn(() => {
        layerTree.preroll(this, {ignoreRasterCache: ignoreRasterCache});
      }, T$.VoidTovoid()));
      _engine.timeAction(T$.void(), "apply_frame", dart.fn(() => {
        layerTree.paint(this, {ignoreRasterCache: ignoreRasterCache});
      }, T$.VoidTovoid()));
      return true;
    }
  };
  (_engine.Frame.new = function(canvas, rasterCache, viewEmbedder) {
    if (canvas == null) dart.nullFailed(I[244], 75, 14, "canvas");
    this[canvas$] = canvas;
    this[rasterCache$1] = rasterCache;
    this[viewEmbedder$1] = viewEmbedder;
    ;
  }).prototype = _engine.Frame.prototype;
  dart.addRtiResources(_engine.Frame, ["_engine|Frame"]);
  dart.setMethodSignature(_engine.Frame, () => dart.global.Object.setPrototypeOf({raster: T$10.LayerTree__Tobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Frame))));
  dart.setLibraryUri(_engine.Frame, I[220]);
  dart.setFieldSignature(_engine.Frame, () => dart.global.Object.setPrototypeOf({
    canvas: {type: T$9.CkCanvas(), isConst: false, isFinal: true, libraryUri: I[220]},
    rasterCache: {type: T$9.RasterCacheN(), isConst: false, isFinal: true, libraryUri: I[220]},
    viewEmbedder: {type: T$9.HtmlViewEmbedderN(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Frame))));
  var rasterCache = dart.privateName(_engine, "CompositorContext.rasterCache");
  _engine.CompositorContext = class CompositorContext extends core.Object {
    get rasterCache() {
      return this[rasterCache];
    }
    set rasterCache(value) {
      this[rasterCache] = value;
    }
    acquireFrame(canvas, viewEmbedder) {
      if (canvas == null) dart.nullFailed(I[244], 104, 31, "canvas");
      return new _engine.Frame.new(canvas, this.rasterCache, viewEmbedder);
    }
    static ['_#new#tearOff']() {
      return new _engine.CompositorContext.new();
    }
  };
  (_engine.CompositorContext.new = function() {
    this[rasterCache] = null;
    ;
  }).prototype = _engine.CompositorContext.prototype;
  dart.addRtiResources(_engine.CompositorContext, ["_engine|CompositorContext"]);
  dart.setMethodSignature(_engine.CompositorContext, () => dart.global.Object.setPrototypeOf({acquireFrame: T$10.CkCanvasAndHtmlViewEmbedderNToFrame()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CompositorContext))));
  dart.setLibraryUri(_engine.CompositorContext, I[220]);
  dart.setFieldSignature(_engine.CompositorContext, () => dart.global.Object.setPrototypeOf({rasterCache: {type: T$9.RasterCacheN(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CompositorContext))));
  var __CkMaskFilter__ref = dart.privateName(_engine, "_#CkMaskFilter#_ref");
  var __CkMaskFilter__ref_isSet = dart.privateName(_engine, "_#CkMaskFilter#_ref#isSet");
  var _blurStyle = dart.privateName(_engine, "_blurStyle");
  var _sigma$0 = dart.privateName(_engine, "_sigma");
  _engine.CkMaskFilter = class CkMaskFilter extends core.Object {
    static ['_#blur#tearOff'](blurStyle, sigma) {
      if (blurStyle == null) dart.nullFailed(I[245], 10, 34, "blurStyle");
      if (sigma == null) dart.nullFailed(I[245], 10, 52, "sigma");
      return new _engine.CkMaskFilter.blur(blurStyle, sigma);
    }
    get [_ref]() {
      let t$36514;
      return dart.test(this[__CkMaskFilter__ref_isSet]) ? (t$36514 = this[__CkMaskFilter__ref], t$36514) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[245], 24, 38, "_ref#param");
      if (dart.test(this[__CkMaskFilter__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkMaskFilter__ref_isSet] = true;
        this[__CkMaskFilter__ref] = _ref$35param;
      }
    }
    get skiaObject() {
      return this[_ref].nativeObject;
    }
  };
  (_engine.CkMaskFilter.blur = function(blurStyle, sigma) {
    if (blurStyle == null) dart.nullFailed(I[245], 10, 34, "blurStyle");
    if (sigma == null) dart.nullFailed(I[245], 10, 52, "sigma");
    this[__CkMaskFilter__ref] = null;
    this[__CkMaskFilter__ref_isSet] = false;
    this[_blurStyle] = blurStyle;
    this[_sigma$0] = sigma;
    let skMaskFilter = dart.nullCheck(_engine['SkMaskFilterNamespaceExtension|MakeBlur'](js_util.getProperty(T$10.SkMaskFilterNamespace(), _engine.canvasKit, "MaskFilter"), _engine.toSkBlurStyle(this[_blurStyle]), this[_sigma$0], true));
    this[_ref] = new (G$.UniqueRefOfSkMaskFilter()).new(this, skMaskFilter, "MaskFilter");
  }).prototype = _engine.CkMaskFilter.prototype;
  dart.addRtiResources(_engine.CkMaskFilter, ["_engine|CkMaskFilter"]);
  dart.setGetterSignature(_engine.CkMaskFilter, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkMaskFilter(),
    skiaObject: T$10.SkMaskFilter()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkMaskFilter))));
  dart.setSetterSignature(_engine.CkMaskFilter, () => dart.global.Object.setPrototypeOf({[_ref]: T$10.UniqueRefOfSkMaskFilter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkMaskFilter))));
  dart.setLibraryUri(_engine.CkMaskFilter, I[220]);
  dart.setFieldSignature(_engine.CkMaskFilter, () => dart.global.Object.setPrototypeOf({
    [_blurStyle]: {type: T$8.BlurStyle(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_sigma$0]: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [__CkMaskFilter__ref]: {type: T$10.UniqueRefNOfSkMaskFilter(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkMaskFilter__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkMaskFilter))));
  var _viewRasterizers = dart.privateName(_engine, "_viewRasterizers");
  _engine.Rasterizer = class Rasterizer extends core.Object {};
  (_engine.Rasterizer.new = function() {
    ;
  }).prototype = _engine.Rasterizer.prototype;
  dart.addRtiResources(_engine.Rasterizer, ["_engine|Rasterizer"]);
  dart.setLibraryUri(_engine.Rasterizer, I[220]);
  _engine.MultiSurfaceRasterizer = class MultiSurfaceRasterizer extends _engine.Rasterizer {
    createViewRasterizer(view) {
      if (view == null) dart.nullFailed(I[246], 15, 69, "view");
      return this[_viewRasterizers][$putIfAbsent](view, dart.fn(() => new _engine.MultiSurfaceViewRasterizer.new(view, this), T$10.VoidToMultiSurfaceViewRasterizer()));
    }
    dispose() {
      for (let viewRasterizer of this[_viewRasterizers][$values]) {
        viewRasterizer.dispose();
      }
      this[_viewRasterizers][$clear]();
    }
    setResourceCacheMaxBytes(bytes) {
      if (bytes == null) dart.nullFailed(I[246], 33, 37, "bytes");
      for (let viewRasterizer of this[_viewRasterizers][$values]) {
        viewRasterizer.displayFactory.forEachCanvas(dart.fn(surface => {
          if (surface == null) dart.nullFailed(I[246], 36, 60, "surface");
          surface.setSkiaResourceCacheMaxBytes(bytes);
        }, T$10.SurfaceTovoid()));
      }
    }
    static ['_#new#tearOff']() {
      return new _engine.MultiSurfaceRasterizer.new();
    }
  };
  (_engine.MultiSurfaceRasterizer.new = function() {
    this[_viewRasterizers] = new (G$.LinkedMapOfEngineFlutterView$MultiSurfaceViewRasterizer()).new();
    ;
  }).prototype = _engine.MultiSurfaceRasterizer.prototype;
  dart.addRtiResources(_engine.MultiSurfaceRasterizer, ["_engine|MultiSurfaceRasterizer"]);
  dart.setMethodSignature(_engine.MultiSurfaceRasterizer, () => dart.global.Object.setPrototypeOf({
    createViewRasterizer: T$10.EngineFlutterViewToMultiSurfaceViewRasterizer(),
    dispose: T$.VoidTovoid(),
    setResourceCacheMaxBytes: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MultiSurfaceRasterizer))));
  dart.setLibraryUri(_engine.MultiSurfaceRasterizer, I[220]);
  dart.setFieldSignature(_engine.MultiSurfaceRasterizer, () => dart.global.Object.setPrototypeOf({[_viewRasterizers]: {type: T$10.MapOfEngineFlutterView$MultiSurfaceViewRasterizer(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MultiSurfaceRasterizer))));
  var rasterizer$0 = dart.privateName(_engine, "MultiSurfaceViewRasterizer.rasterizer");
  var displayFactory = dart.privateName(_engine, "MultiSurfaceViewRasterizer.displayFactory");
  var view$ = dart.privateName(_engine, "ViewRasterizer.view");
  var queue = dart.privateName(_engine, "ViewRasterizer.queue");
  var currentFrameSize = dart.privateName(_engine, "ViewRasterizer.currentFrameSize");
  var context = dart.privateName(_engine, "ViewRasterizer.context");
  var __ViewRasterizer_viewEmbedder = dart.privateName(_engine, "_#ViewRasterizer#viewEmbedder");
  var __ViewRasterizer_viewEmbedder_isSet = dart.privateName(_engine, "_#ViewRasterizer#viewEmbedder#isSet");
  _engine.ViewRasterizer = class ViewRasterizer extends core.Object {
    get view() {
      return this[view$];
    }
    set view(value) {
      super.view = value;
    }
    get queue() {
      return this[queue];
    }
    set queue(value) {
      super.queue = value;
    }
    get currentFrameSize() {
      return this[currentFrameSize];
    }
    set currentFrameSize(value) {
      if (value == null) dart.nullFailed(I[247], 28, 14, "currentFrameSize");
      this[currentFrameSize] = value;
    }
    get context() {
      return this[context];
    }
    set context(value) {
      super.context = value;
    }
    get viewEmbedder() {
      let t$36515;
      if (!dart.test(this[__ViewRasterizer_viewEmbedder_isSet])) {
        let t$36514 = new _engine.HtmlViewEmbedder.new(this.sceneHost, this);
        if (dart.test(this[__ViewRasterizer_viewEmbedder_isSet])) dart.throw(new _internal.LateError.fieldADI("viewEmbedder"));
        this[__ViewRasterizer_viewEmbedder] = t$36514;
        this[__ViewRasterizer_viewEmbedder_isSet] = true;
      }
      t$36515 = this[__ViewRasterizer_viewEmbedder];
      return t$36515;
    }
    get sceneHost() {
      return this.view.dom.sceneHost;
    }
    draw(layerTree) {
      if (layerTree == null) dart.nullFailed(I[247], 44, 31, "layerTree");
      return async.async(T$.void(), (function* draw() {
        let frameSize = this.view.physicalSize;
        if (dart.test(frameSize.isEmpty)) {
          return;
        }
        let bitmapSize = new _engine.BitmapSize.fromSize(frameSize);
        this.currentFrameSize = bitmapSize;
        this.prepareToDraw();
        this.viewEmbedder.frameSize = this.currentFrameSize;
        let pictureRecorder = new _engine.CkPictureRecorder.new();
        pictureRecorder.beginRecording(ui.Offset.zero['&'](this.currentFrameSize.toSize()));
        let compositorFrame = this.context.acquireFrame(dart.nullCheck(pictureRecorder.recordingCanvas), this.viewEmbedder);
        compositorFrame.raster(layerTree, {ignoreRasterCache: true});
        yield this.viewEmbedder.submitFrame(pictureRecorder.endRecording());
      }).bind(this));
    }
    getOverlay() {
      return this.displayFactory.getCanvas();
    }
    releaseOverlay(overlay) {
      if (overlay == null) dart.nullFailed(I[247], 88, 37, "overlay");
      this.displayFactory.releaseCanvas(overlay);
    }
    releaseOverlays() {
      this.displayFactory.releaseCanvases();
    }
    removeOverlaysFromDom() {
      this.displayFactory.removeCanvasesFromDom();
    }
    dispose() {
      this.viewEmbedder.dispose();
      this.displayFactory.dispose();
    }
    debugClear() {
      this.viewEmbedder.debugClear();
    }
  };
  (_engine.ViewRasterizer.new = function(view) {
    if (view == null) dart.nullFailed(I[247], 19, 23, "view");
    this[queue] = new _engine.RenderQueue.new();
    this[currentFrameSize] = _engine.BitmapSize.zero;
    this[context] = new _engine.CompositorContext.new();
    this[__ViewRasterizer_viewEmbedder] = null;
    this[__ViewRasterizer_viewEmbedder_isSet] = false;
    this[view$] = view;
    ;
  }).prototype = _engine.ViewRasterizer.prototype;
  dart.addRtiResources(_engine.ViewRasterizer, ["_engine|ViewRasterizer"]);
  dart.setMethodSignature(_engine.ViewRasterizer, () => dart.global.Object.setPrototypeOf({
    draw: T$10.LayerTreeToFutureOfvoid(),
    getOverlay: T$10.VoidToDisplayCanvas(),
    releaseOverlay: T$10.DisplayCanvasTovoid(),
    releaseOverlays: T$.VoidTovoid(),
    removeOverlaysFromDom: T$.VoidTovoid(),
    dispose: T$.VoidTovoid(),
    debugClear: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ViewRasterizer))));
  dart.setGetterSignature(_engine.ViewRasterizer, () => dart.global.Object.setPrototypeOf({
    viewEmbedder: T$10.HtmlViewEmbedder(),
    sceneHost: T$9.DomElement()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ViewRasterizer))));
  dart.setLibraryUri(_engine.ViewRasterizer, I[220]);
  dart.setFieldSignature(_engine.ViewRasterizer, () => dart.global.Object.setPrototypeOf({
    view: {type: T$10.EngineFlutterView(), isConst: false, isFinal: true, libraryUri: I[220]},
    queue: {type: T$10.RenderQueue(), isConst: false, isFinal: true, libraryUri: I[220]},
    currentFrameSize: {type: T$9.BitmapSize(), isConst: false, isFinal: false, libraryUri: I[220]},
    context: {type: T$10.CompositorContext(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__ViewRasterizer_viewEmbedder]: {type: T$9.HtmlViewEmbedderN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__ViewRasterizer_viewEmbedder_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ViewRasterizer))));
  _engine.MultiSurfaceViewRasterizer = class MultiSurfaceViewRasterizer extends _engine.ViewRasterizer {
    get rasterizer() {
      return this[rasterizer$0];
    }
    set rasterizer(value) {
      super.rasterizer = value;
    }
    get displayFactory() {
      return this[displayFactory];
    }
    set displayFactory(value) {
      super.displayFactory = value;
    }
    static ['_#new#tearOff'](view, rasterizer) {
      if (view == null) dart.nullFailed(I[246], 44, 36, "view");
      if (rasterizer == null) dart.nullFailed(I[246], 44, 47, "rasterizer");
      return new _engine.MultiSurfaceViewRasterizer.new(view, rasterizer);
    }
    prepareToDraw() {
      this.displayFactory.baseCanvas.createOrUpdateSurface(this.currentFrameSize);
    }
    rasterizeToCanvas(canvas, pictures) {
      if (canvas == null) dart.nullFailed(I[246], 60, 21, "canvas");
      if (pictures == null) dart.nullFailed(I[246], 60, 45, "pictures");
      let surface = T$10.Surface()[_as](canvas);
      surface.createOrUpdateSurface(this.currentFrameSize);
      surface.positionToShowFrame(this.currentFrameSize);
      let skCanvas = surface.getCanvas();
      skCanvas.clear(C[835] || CT.C835);
      pictures[$forEach](dart.bind(skCanvas, 'drawPicture'));
      surface.flush();
      return G.FutureOfvoid().value();
    }
  };
  (_engine.MultiSurfaceViewRasterizer.new = function(view, rasterizer) {
    if (view == null) dart.nullFailed(I[246], 44, 36, "view");
    if (rasterizer == null) dart.nullFailed(I[246], 44, 47, "rasterizer");
    this[displayFactory] = new (G$.DisplayCanvasFactoryOfSurface()).new({createCanvas: dart.fn(() => new _engine.Surface.new({isDisplayCanvas: true}), T$10.VoidToSurface())});
    this[rasterizer$0] = rasterizer;
    dart.global.Object.getPrototypeOf(_engine.MultiSurfaceViewRasterizer).new.call(this, view);
    ;
  }).prototype = _engine.MultiSurfaceViewRasterizer.prototype;
  dart.addRtiResources(_engine.MultiSurfaceViewRasterizer, ["_engine|MultiSurfaceViewRasterizer"]);
  dart.setMethodSignature(_engine.MultiSurfaceViewRasterizer, () => dart.global.Object.setPrototypeOf({
    prepareToDraw: T$.VoidTovoid(),
    rasterizeToCanvas: T$10.DisplayCanvasAndListOfCkPictureToFutureOfvoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MultiSurfaceViewRasterizer))));
  dart.setLibraryUri(_engine.MultiSurfaceViewRasterizer, I[220]);
  dart.setFieldSignature(_engine.MultiSurfaceViewRasterizer, () => dart.global.Object.setPrototypeOf({
    rasterizer: {type: T$10.MultiSurfaceRasterizer(), isConst: false, isFinal: true, libraryUri: I[220]},
    displayFactory: {type: T$10.DisplayCanvasFactoryOfSurface(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MultiSurfaceViewRasterizer))));
  var _canvases = dart.privateName(_engine, "_canvases");
  _engine.CkNWayCanvas = class CkNWayCanvas extends core.Object {
    addCanvas(canvas) {
      if (canvas == null) dart.nullFailed(I[248], 13, 27, "canvas");
      this[_canvases][$add](canvas);
    }
    save() {
      let saveCount = 0;
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        saveCount = this[_canvases][$_get](i).save();
      }
      return saveCount;
    }
    saveLayer(bounds, paint) {
      if (bounds == null) dart.nullFailed(I[248], 27, 26, "bounds");
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).saveLayer(bounds, paint);
      }
    }
    saveLayerWithFilter(bounds, filter, paint = null) {
      if (bounds == null) dart.nullFailed(I[248], 34, 36, "bounds");
      if (filter == null) dart.nullFailed(I[248], 34, 59, "filter");
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).saveLayerWithFilter(bounds, filter, paint);
      }
    }
    restore() {
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).restore();
      }
    }
    restoreToCount(count) {
      if (count == null) dart.nullFailed(I[248], 49, 27, "count");
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).restoreToCount(count);
      }
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[248], 56, 25, "dx");
      if (dy == null) dart.nullFailed(I[248], 56, 36, "dy");
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).translate(dx, dy);
      }
    }
    transform(matrix) {
      if (matrix == null) dart.nullFailed(I[248], 63, 30, "matrix");
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).transform(matrix);
      }
    }
    clear(color) {
      if (color == null) dart.nullFailed(I[248], 70, 23, "color");
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).clear(color);
      }
    }
    clipPath(path, doAntiAlias) {
      if (path == null) dart.nullFailed(I[248], 77, 24, "path");
      if (doAntiAlias == null) dart.nullFailed(I[248], 77, 35, "doAntiAlias");
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).clipPath(path, doAntiAlias);
      }
    }
    clipRect(rect, clipOp, doAntiAlias) {
      if (rect == null) dart.nullFailed(I[248], 84, 25, "rect");
      if (clipOp == null) dart.nullFailed(I[248], 84, 41, "clipOp");
      if (doAntiAlias == null) dart.nullFailed(I[248], 84, 54, "doAntiAlias");
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).clipRect(rect, clipOp, doAntiAlias);
      }
    }
    clipRRect(rrect, doAntiAlias) {
      if (rrect == null) dart.nullFailed(I[248], 91, 27, "rrect");
      if (doAntiAlias == null) dart.nullFailed(I[248], 91, 39, "doAntiAlias");
      for (let i = 0; i < dart.notNull(this[_canvases][$length]); i = i + 1) {
        this[_canvases][$_get](i).clipRRect(rrect, doAntiAlias);
      }
    }
    static ['_#new#tearOff']() {
      return new _engine.CkNWayCanvas.new();
    }
  };
  (_engine.CkNWayCanvas.new = function() {
    this[_canvases] = G$.JSArrayOfCkCanvas().of([]);
    ;
  }).prototype = _engine.CkNWayCanvas.prototype;
  dart.addRtiResources(_engine.CkNWayCanvas, ["_engine|CkNWayCanvas"]);
  dart.setMethodSignature(_engine.CkNWayCanvas, () => dart.global.Object.setPrototypeOf({
    addCanvas: T$10.CkCanvasTovoid(),
    save: T$.VoidToint(),
    saveLayer: T$9.RectAndCkPaintNTovoid(),
    saveLayerWithFilter: T$9.RectAndImageFilterAndCkPaintNTovoid(),
    restore: T$.VoidTovoid(),
    restoreToCount: T$.intTovoid(),
    translate: T$9.doubleAnddoubleTovoid(),
    transform: T$7.Float32ListTovoid(),
    clear: T$9.ColorTovoid(),
    clipPath: T$9.CkPathAndboolTovoid(),
    clipRect: T$9.RectAndClipOpAndboolTovoid(),
    clipRRect: T$9.RRectAndboolTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkNWayCanvas))));
  dart.setLibraryUri(_engine.CkNWayCanvas, I[220]);
  dart.setFieldSignature(_engine.CkNWayCanvas, () => dart.global.Object.setPrototypeOf({[_canvases]: {type: T$10.ListOfCkCanvas(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkNWayCanvas))));
  _engine.NativeMemoryFinalizationRegistry = class NativeMemoryFinalizationRegistry extends core.Object {
    register(owner, ref) {
      if (owner == null) dart.nullFailed(I[249], 35, 24, "owner");
      if (ref == null) dart.nullFailed(I[249], 35, 49, "ref");
      if (dart.test(_engine.browserSupportsFinalizationRegistry)) {
        _engine._finalizationRegistry.register(js_interop['ObjectToExternalDartReference|get#toExternalReference'](T$.Object(), owner), js_interop['ObjectToExternalDartReference|get#toExternalReference'](T$10.UniqueRefOfObject(), ref));
      }
    }
    static ['_#new#tearOff']() {
      return new _engine.NativeMemoryFinalizationRegistry.new();
    }
  };
  (_engine.NativeMemoryFinalizationRegistry.new = function() {
    ;
  }).prototype = _engine.NativeMemoryFinalizationRegistry.prototype;
  dart.addRtiResources(_engine.NativeMemoryFinalizationRegistry, ["_engine|NativeMemoryFinalizationRegistry"]);
  dart.setMethodSignature(_engine.NativeMemoryFinalizationRegistry, () => dart.global.Object.setPrototypeOf({register: T$10.ObjectAndUniqueRefOfObjectTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.NativeMemoryFinalizationRegistry))));
  dart.setLibraryUri(_engine.NativeMemoryFinalizationRegistry, I[220]);
  var _nativeObject = dart.privateName(_engine, "_nativeObject");
  var _debugOwnerLabel$ = dart.privateName(_engine, "_debugOwnerLabel");
  _engine.UniqueRef$ = dart.generic(T => {
    var __t$UniqueRefOfT = () => (__t$UniqueRefOfT = dart.constFn(T[_eval]("_engine|UniqueRef<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    class UniqueRef extends core.Object {
      static ['_#new#tearOff'](T, owner, nativeObject, _debugOwnerLabel) {
        if (owner == null) dart.nullFailed(I[249], 50, 20, "owner");
        if (nativeObject == null) dart.nullFailed(I[249], 50, 29, "nativeObject");
        if (_debugOwnerLabel == null) dart.nullFailed(I[249], 50, 48, "_debugOwnerLabel");
        return new (_engine.UniqueRef$(T)).new(owner, nativeObject, _debugOwnerLabel);
      }
      get nativeObject() {
        if (!!dart.test(this.isDisposed)) dart.assertFailed("The native object of " + dart.str(this[_debugOwnerLabel$]) + " was disposed.", I[249], 67, 12, "!isDisposed");
        return dart.nullCheck(this[_nativeObject]);
      }
      get isDisposed() {
        return this[_nativeObject] == null;
      }
      dispose() {
        if (!!dart.test(this.isDisposed)) dart.assertFailed("A native object reference cannot be disposed more than once.", I[249], 83, 12, "!isDisposed");
        if (dart.test(_engine.Instrumentation.enabled)) {
          _engine.Instrumentation.instance.incrementCounter(dart.str(this[_debugOwnerLabel$]) + " Deleted");
        }
        let object = T$10.SkDeletable()[_as](this.nativeObject);
        if (!dart.test(_engine['SkDeletableExtension|isDeleted'](object))) {
          object.delete();
        }
        this[_nativeObject] = null;
      }
      collect() {
        if (!dart.test(this.isDisposed)) {
          if (dart.test(_engine.Instrumentation.enabled)) {
            _engine.Instrumentation.instance.incrementCounter(dart.str(this[_debugOwnerLabel$]) + " Leaked");
          }
          this.dispose();
        }
      }
    }
    (UniqueRef.new = function(owner, nativeObject, _debugOwnerLabel) {
      if (owner == null) dart.nullFailed(I[249], 50, 20, "owner");
      if (nativeObject == null) dart.nullFailed(I[249], 50, 29, "nativeObject");
      if (_debugOwnerLabel == null) dart.nullFailed(I[249], 50, 48, "_debugOwnerLabel");
      this[_nativeObject] = null;
      this[_debugOwnerLabel$] = _debugOwnerLabel;
      this.$ti = this.$ti || __t$UniqueRefOfT();
      this[_nativeObject] = nativeObject;
      if (dart.test(_engine.Instrumentation.enabled)) {
        _engine.Instrumentation.instance.incrementCounter(dart.str(this[_debugOwnerLabel$]) + " Created");
      }
      _engine.nativeMemoryFinalizationRegistry.register(owner, this);
    }).prototype = UniqueRef.prototype;
    dart.addRtiResources(UniqueRef, ["_engine|UniqueRef"]);
    dart.setMethodSignature(UniqueRef, () => dart.global.Object.setPrototypeOf({
      dispose: T$.VoidTovoid(),
      collect: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(UniqueRef))));
    dart.setGetterSignature(UniqueRef, () => dart.global.Object.setPrototypeOf({
      nativeObject: T,
      isDisposed: T$.bool()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(UniqueRef))));
    dart.setLibraryUri(UniqueRef, I[220]);
    dart.setFieldSignature(UniqueRef, () => dart.global.Object.setPrototypeOf({
      [_nativeObject]: {type: __t$TN(), isConst: false, isFinal: false},
      [_debugOwnerLabel$]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(UniqueRef))));
    return UniqueRef;
  });
  _engine.UniqueRef = _engine.UniqueRef$();
  _engine.StackTraceDebugger = class StackTraceDebugger extends core.Object {};
  (_engine.StackTraceDebugger.new = function() {
    ;
  }).prototype = _engine.StackTraceDebugger.prototype;
  dart.addRtiResources(_engine.StackTraceDebugger, ["_engine|StackTraceDebugger"]);
  dart.setLibraryUri(_engine.StackTraceDebugger, I[220]);
  var debugReferrers = dart.privateName(_engine, "CountedRef.debugReferrers");
  var __CountedRef__ref = dart.privateName(_engine, "_#CountedRef#_ref");
  var __CountedRef__ref_isSet = dart.privateName(_engine, "_#CountedRef#_ref#isSet");
  var _refCount = dart.privateName(_engine, "_refCount");
  _engine.CountedRef$ = dart.generic((R, T) => {
    var __t$CountedRefOfR$T = () => (__t$CountedRefOfR$T = dart.constFn(R[_eval]("@<0>")[_bind](T)[_eval]("_engine|CountedRef<1,2>")))();
    var __t$RToStackTrace = () => (__t$RToStackTrace = dart.constFn(R[_eval]("core|StackTrace(0)")))();
    var __t$SetOfR = () => (__t$SetOfR = dart.constFn(R[_eval]("core|Set<0>")))();
    var __t$UniqueRefOfT = () => (__t$UniqueRefOfT = dart.constFn(T[_eval]("_engine|UniqueRef<0>")))();
    var __t$UniqueRefNOfT = () => (__t$UniqueRefNOfT = dart.constFn(T[_eval]("_engine|UniqueRef<0>?")))();
    var __t$LinkedHashSetOfR = () => (__t$LinkedHashSetOfR = dart.constFn(collection.LinkedHashSet$(R)))();
    var __t$UniqueRefOfT$ = () => (__t$UniqueRefOfT$ = dart.constFn(_engine.UniqueRef$(T)))();
    class CountedRef extends core.Object {
      get debugReferrers() {
        return this[debugReferrers];
      }
      set debugReferrers(value) {
        super.debugReferrers = value;
      }
      static ['_#new#tearOff'](R, T, nativeObject, debugReferrer, debugLabel) {
        if (nativeObject == null) dart.nullFailed(I[249], 141, 16, "nativeObject");
        if (debugReferrer == null) dart.nullFailed(I[249], 141, 32, "debugReferrer");
        if (debugLabel == null) dart.nullFailed(I[249], 141, 54, "debugLabel");
        return new (_engine.CountedRef$(R, T)).new(nativeObject, debugReferrer, debugLabel);
      }
      get [_ref]() {
        let t$36515;
        return dart.test(this[__CountedRef__ref_isSet]) ? (t$36515 = this[__CountedRef__ref], t$36515) : dart.throw(new _internal.LateError.fieldNI("_ref"));
      }
      set [_ref](_ref$35param) {
        if (_ref$35param == null) dart.nullFailed(I[249], 154, 27, "_ref#param");
        if (dart.test(this[__CountedRef__ref_isSet]))
          dart.throw(new _internal.LateError.fieldAI("_ref"));
        else {
          this[__CountedRef__ref_isSet] = true;
          this[__CountedRef__ref] = _ref$35param;
        }
      }
      get nativeObject() {
        return this[_ref].nativeObject;
      }
      get refCount() {
        return this[_refCount];
      }
      get isDisposed() {
        return this[_ref].isDisposed;
      }
      debugGetStackTraces() {
        let result = null;
        if (!dart.test(dart.fn(() => {
          result = this.debugReferrers[$map](T$.StackTrace(), dart.fn(referrer => {
            if (referrer == null) dart.nullFailed(I[249], 187, 31, "referrer");
            return referrer.debugStackTrace;
          }, __t$RToStackTrace()))[$toList]();
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[249], 185, 12, "() {\n      result = debugReferrers\n          .map<StackTrace>((R referrer) => referrer.debugStackTrace)\n          .toList();\n      return true;\n    }()");
        if (result != null) {
          return dart.nullCheck(result);
        }
        dart.throw(new core.UnsupportedError.new(""));
      }
      ref(debugReferrer) {
        R[_as](debugReferrer);
        if (debugReferrer == null) dart.nullFailed(I[249], 201, 14, "debugReferrer");
        if (!!dart.test(this[_ref].isDisposed)) dart.assertFailed("Cannot increment ref count on a deleted handle.", I[249], 203, 7, "!_ref.isDisposed");
        if (!(dart.notNull(this[_refCount]) > 0)) dart.assertFailed(null, I[249], 206, 12, "_refCount > 0");
        if (!dart.test(this.debugReferrers.add(debugReferrer))) dart.assertFailed("Attempted to increment ref count by the same referrer more than once.", I[249], 208, 7, "debugReferrers.add(debugReferrer)");
        this[_refCount] = dart.notNull(this[_refCount]) + 1;
        if (!(this.refCount == this.debugReferrers[$length])) dart.assertFailed(null, I[249], 212, 12, "refCount == debugReferrers.length");
      }
      unref(debugReferrer) {
        R[_as](debugReferrer);
        if (debugReferrer == null) dart.nullFailed(I[249], 221, 16, "debugReferrer");
        if (!!dart.test(this[_ref].isDisposed)) dart.assertFailed("Attempted to unref an already deleted native object.", I[249], 223, 7, "!_ref.isDisposed");
        if (!dart.test(this.debugReferrers.remove(debugReferrer))) dart.assertFailed("Attempted to decrement ref count by the same referrer more than once.", I[249], 227, 7, "debugReferrers.remove(debugReferrer)");
        this[_refCount] = dart.notNull(this[_refCount]) - 1;
        if (!(this.refCount == this.debugReferrers[$length])) dart.assertFailed(null, I[249], 231, 12, "refCount == debugReferrers.length");
        if (this[_refCount] === 0) {
          this[_ref].dispose();
        }
      }
    }
    (CountedRef.new = function(nativeObject, debugReferrer, debugLabel) {
      if (nativeObject == null) dart.nullFailed(I[249], 141, 16, "nativeObject");
      if (debugReferrer == null) dart.nullFailed(I[249], 141, 32, "debugReferrer");
      if (debugLabel == null) dart.nullFailed(I[249], 141, 54, "debugLabel");
      this[__CountedRef__ref] = null;
      this[__CountedRef__ref_isSet] = false;
      this[_refCount] = 1;
      this[debugReferrers] = __t$LinkedHashSetOfR().new();
      this.$ti = this.$ti || __t$CountedRefOfR$T();
      this[_ref] = new (__t$UniqueRefOfT$()).new(this, nativeObject, debugLabel);
      if (!dart.test(dart.fn(() => {
        this.debugReferrers.add(debugReferrer);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[249], 143, 12, "() {\n      debugReferrers.add(debugReferrer);\n      return true;\n    }()");
      if (!(this.refCount == this.debugReferrers[$length])) dart.assertFailed(null, I[249], 147, 12, "refCount == debugReferrers.length");
    }).prototype = CountedRef.prototype;
    dart.addRtiResources(CountedRef, ["_engine|CountedRef"]);
    dart.setMethodSignature(CountedRef, () => dart.global.Object.setPrototypeOf({
      debugGetStackTraces: T$10.VoidToListOfStackTrace(),
      ref: T$.ObjectNTovoid(),
      unref: T$.ObjectNTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(CountedRef))));
    dart.setGetterSignature(CountedRef, () => dart.global.Object.setPrototypeOf({
      [_ref]: __t$UniqueRefOfT(),
      nativeObject: T,
      refCount: T$.int(),
      isDisposed: T$.bool()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(CountedRef))));
    dart.setSetterSignature(CountedRef, () => dart.global.Object.setPrototypeOf({[_ref]: __t$UniqueRefOfT()}, dart.getSetters(dart.global.Object.getPrototypeOf(CountedRef))));
    dart.setLibraryUri(CountedRef, I[220]);
    dart.setFieldSignature(CountedRef, () => dart.global.Object.setPrototypeOf({
      [__CountedRef__ref]: {type: __t$UniqueRefNOfT(), isConst: false, isFinal: false, libraryUri: I[220]},
      [__CountedRef__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_refCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
      debugReferrers: {type: __t$SetOfR(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(CountedRef))));
    return CountedRef;
  });
  _engine.CountedRef = _engine.CountedRef$();
  var offscreenSurface = dart.privateName(_engine, "OffscreenCanvasRasterizer.offscreenSurface");
  _engine.OffscreenCanvasRasterizer = class OffscreenCanvasRasterizer extends _engine.Rasterizer {
    get offscreenSurface() {
      return this[offscreenSurface];
    }
    set offscreenSurface(value) {
      super.offscreenSurface = value;
    }
    createViewRasterizer(view) {
      if (view == null) dart.nullFailed(I[250], 16, 72, "view");
      return this[_viewRasterizers][$putIfAbsent](view, dart.fn(() => new _engine.OffscreenCanvasViewRasterizer.new(view, this), T$10.VoidToOffscreenCanvasViewRasterizer()));
    }
    setResourceCacheMaxBytes(bytes) {
      if (bytes == null) dart.nullFailed(I[250], 25, 37, "bytes");
      this.offscreenSurface.setSkiaResourceCacheMaxBytes(bytes);
    }
    dispose() {
      this.offscreenSurface.dispose();
      for (let viewRasterizer of this[_viewRasterizers][$values]) {
        viewRasterizer.dispose();
      }
    }
    static ['_#new#tearOff']() {
      return new _engine.OffscreenCanvasRasterizer.new();
    }
  };
  (_engine.OffscreenCanvasRasterizer.new = function() {
    this[offscreenSurface] = new _engine.Surface.new();
    this[_viewRasterizers] = new (G$.LinkedMapOfEngineFlutterView$OffscreenCanvasViewRasterizer()).new();
    ;
  }).prototype = _engine.OffscreenCanvasRasterizer.prototype;
  dart.addRtiResources(_engine.OffscreenCanvasRasterizer, ["_engine|OffscreenCanvasRasterizer"]);
  dart.setMethodSignature(_engine.OffscreenCanvasRasterizer, () => dart.global.Object.setPrototypeOf({
    createViewRasterizer: T$10.EngineFlutterViewToOffscreenCanvasViewRasterizer(),
    setResourceCacheMaxBytes: T$.intTovoid(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.OffscreenCanvasRasterizer))));
  dart.setLibraryUri(_engine.OffscreenCanvasRasterizer, I[220]);
  dart.setFieldSignature(_engine.OffscreenCanvasRasterizer, () => dart.global.Object.setPrototypeOf({
    offscreenSurface: {type: T$10.Surface(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_viewRasterizers]: {type: T$10.MapOfEngineFlutterView$OffscreenCanvasViewRasterizer(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.OffscreenCanvasRasterizer))));
  var rasterizer$1 = dart.privateName(_engine, "OffscreenCanvasViewRasterizer.rasterizer");
  var displayFactory$ = dart.privateName(_engine, "OffscreenCanvasViewRasterizer.displayFactory");
  _engine.OffscreenCanvasViewRasterizer = class OffscreenCanvasViewRasterizer extends _engine.ViewRasterizer {
    get rasterizer() {
      return this[rasterizer$1];
    }
    set rasterizer(value) {
      super.rasterizer = value;
    }
    get displayFactory() {
      return this[displayFactory$];
    }
    set displayFactory(value) {
      super.displayFactory = value;
    }
    static ['_#new#tearOff'](view, rasterizer) {
      if (view == null) dart.nullFailed(I[250], 40, 39, "view");
      if (rasterizer == null) dart.nullFailed(I[250], 40, 50, "rasterizer");
      return new _engine.OffscreenCanvasViewRasterizer.new(view, rasterizer);
    }
    rasterizeToCanvas(canvas, pictures) {
      if (canvas == null) dart.nullFailed(I[250], 51, 21, "canvas");
      if (pictures == null) dart.nullFailed(I[250], 51, 45, "pictures");
      return async.async(T$.void(), (function* rasterizeToCanvas() {
        yield this.rasterizer.offscreenSurface.rasterizeToCanvas(this.currentFrameSize, T$10.RenderCanvas()[_as](canvas), pictures);
      }).bind(this));
    }
    prepareToDraw() {
      this.rasterizer.offscreenSurface.createOrUpdateSurface(this.currentFrameSize);
    }
  };
  (_engine.OffscreenCanvasViewRasterizer.new = function(view, rasterizer) {
    if (view == null) dart.nullFailed(I[250], 40, 39, "view");
    if (rasterizer == null) dart.nullFailed(I[250], 40, 50, "rasterizer");
    this[displayFactory$] = new (G$.DisplayCanvasFactoryOfRenderCanvas()).new({createCanvas: dart.fn(() => new _engine.RenderCanvas.new(), T$10.VoidToRenderCanvas())});
    this[rasterizer$1] = rasterizer;
    dart.global.Object.getPrototypeOf(_engine.OffscreenCanvasViewRasterizer).new.call(this, view);
    ;
  }).prototype = _engine.OffscreenCanvasViewRasterizer.prototype;
  dart.addRtiResources(_engine.OffscreenCanvasViewRasterizer, ["_engine|OffscreenCanvasViewRasterizer"]);
  dart.setMethodSignature(_engine.OffscreenCanvasViewRasterizer, () => dart.global.Object.setPrototypeOf({
    rasterizeToCanvas: T$10.DisplayCanvasAndListOfCkPictureToFutureOfvoid(),
    prepareToDraw: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.OffscreenCanvasViewRasterizer))));
  dart.setLibraryUri(_engine.OffscreenCanvasViewRasterizer, I[220]);
  dart.setFieldSignature(_engine.OffscreenCanvasViewRasterizer, () => dart.global.Object.setPrototypeOf({
    rasterizer: {type: T$10.OffscreenCanvasRasterizer(), isConst: false, isFinal: true, libraryUri: I[220]},
    displayFactory: {type: T$10.DisplayCanvasFactoryOfRenderCanvas(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.OffscreenCanvasViewRasterizer))));
  var entities = dart.privateName(_engine, "Rendering.entities");
  _engine.Rendering = class Rendering extends core.Object {
    get entities() {
      return this[entities];
    }
    set entities(value) {
      super.entities = value;
    }
    add(entity) {
      if (entity == null) dart.nullFailed(I[251], 23, 28, "entity");
      this.entities[$add](entity);
    }
    equalsForRendering(other) {
      if (other == null) dart.nullFailed(I[251], 28, 37, "other");
      if (other.entities[$length] != this.entities[$length]) {
        return false;
      }
      for (let i = 0; i < dart.notNull(this.entities[$length]); i = i + 1) {
        if (!dart.test(this.entities[$_get](i).equalsForRendering(other.entities[$_get](i)))) {
          return false;
        }
      }
      return true;
    }
    get canvases() {
      return this.entities[$whereType](T$9.RenderingRenderCanvas())[$toList]();
    }
    toString() {
      return dart.toString(this.entities);
    }
    static ['_#new#tearOff']() {
      return new _engine.Rendering.new();
    }
  };
  (_engine.Rendering.new = function() {
    this[entities] = G$.JSArrayOfRenderingEntity().of([]);
    ;
  }).prototype = _engine.Rendering.prototype;
  dart.addRtiResources(_engine.Rendering, ["_engine|Rendering"]);
  dart.setMethodSignature(_engine.Rendering, () => dart.global.Object.setPrototypeOf({
    add: T$10.RenderingEntityTovoid(),
    equalsForRendering: T$10.RenderingTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Rendering))));
  dart.setGetterSignature(_engine.Rendering, () => dart.global.Object.setPrototypeOf({canvases: T$10.ListOfRenderingRenderCanvas()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Rendering))));
  dart.setLibraryUri(_engine.Rendering, I[220]);
  dart.setFieldSignature(_engine.Rendering, () => dart.global.Object.setPrototypeOf({entities: {type: T$10.ListOfRenderingEntity(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Rendering))));
  dart.defineExtensionMethods(_engine.Rendering, ['toString']);
  _engine.RenderingEntity = class RenderingEntity extends core.Object {};
  (_engine.RenderingEntity.new = function() {
    ;
  }).prototype = _engine.RenderingEntity.prototype;
  dart.addRtiResources(_engine.RenderingEntity, ["_engine|RenderingEntity"]);
  dart.setLibraryUri(_engine.RenderingEntity, I[220]);
  var pictures = dart.privateName(_engine, "RenderingRenderCanvas.pictures");
  var displayCanvas = dart.privateName(_engine, "RenderingRenderCanvas.displayCanvas");
  _engine.RenderingRenderCanvas = class RenderingRenderCanvas extends _engine.RenderingEntity {
    get pictures() {
      return this[pictures];
    }
    set pictures(value) {
      super.pictures = value;
    }
    get displayCanvas() {
      return this[displayCanvas];
    }
    set displayCanvas(value) {
      this[displayCanvas] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.RenderingRenderCanvas.new();
    }
    add(picture) {
      if (picture == null) dart.nullFailed(I[251], 71, 22, "picture");
      this.pictures[$add](picture);
    }
    equalsForRendering(other) {
      if (other == null) dart.nullFailed(I[251], 76, 43, "other");
      return T$9.RenderingRenderCanvas()[_is](other);
    }
    toString() {
      return dart.strSafe(dart_rti.createRuntimeType(T$9.RenderingRenderCanvas())) + "(" + dart.str(this.pictures[$length]) + " pictures)";
    }
  };
  (_engine.RenderingRenderCanvas.new = function() {
    this[pictures] = G$.JSArrayOfCkPicture().of([]);
    this[displayCanvas] = null;
    ;
  }).prototype = _engine.RenderingRenderCanvas.prototype;
  dart.addRtiResources(_engine.RenderingRenderCanvas, ["_engine|RenderingRenderCanvas"]);
  dart.setMethodSignature(_engine.RenderingRenderCanvas, () => dart.global.Object.setPrototypeOf({
    add: T$9.CkPictureTovoid(),
    equalsForRendering: T$10.RenderingEntityTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RenderingRenderCanvas))));
  dart.setLibraryUri(_engine.RenderingRenderCanvas, I[220]);
  dart.setFieldSignature(_engine.RenderingRenderCanvas, () => dart.global.Object.setPrototypeOf({
    pictures: {type: T$10.ListOfCkPicture(), isConst: false, isFinal: true, libraryUri: I[11]},
    displayCanvas: {type: T$9.DisplayCanvasN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RenderingRenderCanvas))));
  dart.defineExtensionMethods(_engine.RenderingRenderCanvas, ['toString']);
  var viewId$3 = dart.privateName(_engine, "RenderingPlatformView.viewId");
  var debugComputedBounds = dart.privateName(_engine, "RenderingPlatformView.debugComputedBounds");
  _engine.RenderingPlatformView = class RenderingPlatformView extends _engine.RenderingEntity {
    get viewId() {
      return this[viewId$3];
    }
    set viewId(value) {
      super.viewId = value;
    }
    get debugComputedBounds() {
      return this[debugComputedBounds];
    }
    set debugComputedBounds(value) {
      this[debugComputedBounds] = value;
    }
    static ['_#new#tearOff'](viewId) {
      if (viewId == null) dart.nullFailed(I[251], 88, 30, "viewId");
      return new _engine.RenderingPlatformView.new(viewId);
    }
    equalsForRendering(other) {
      if (other == null) dart.nullFailed(I[251], 94, 43, "other");
      return T$9.RenderingPlatformView()[_is](other) && other.viewId == this.viewId;
    }
    toString() {
      return dart.strSafe(dart_rti.createRuntimeType(T$9.RenderingPlatformView())) + "(" + dart.str(this.viewId) + ")";
    }
  };
  (_engine.RenderingPlatformView.new = function(viewId) {
    if (viewId == null) dart.nullFailed(I[251], 88, 30, "viewId");
    this[debugComputedBounds] = null;
    this[viewId$3] = viewId;
    ;
  }).prototype = _engine.RenderingPlatformView.prototype;
  dart.addRtiResources(_engine.RenderingPlatformView, ["_engine|RenderingPlatformView"]);
  dart.setMethodSignature(_engine.RenderingPlatformView, () => dart.global.Object.setPrototypeOf({equalsForRendering: T$10.RenderingEntityTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RenderingPlatformView))));
  dart.setLibraryUri(_engine.RenderingPlatformView, I[220]);
  dart.setFieldSignature(_engine.RenderingPlatformView, () => dart.global.Object.setPrototypeOf({
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    debugComputedBounds: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RenderingPlatformView))));
  dart.defineExtensionMethods(_engine.RenderingPlatformView, ['toString']);
  var skiaObject = dart.privateName(_engine, "CkPaint.skiaObject");
  var __CkPaint__ref = dart.privateName(_engine, "_#CkPaint#_ref");
  var __CkPaint__ref_isSet = dart.privateName(_engine, "_#CkPaint#_ref#isSet");
  var _imageFilter = dart.privateName(_engine, "_imageFilter");
  var _style$0 = dart.privateName(_engine, "_style");
  var _strokeWidth = dart.privateName(_engine, "_strokeWidth");
  var _strokeCap = dart.privateName(_engine, "_strokeCap");
  var _strokeJoin = dart.privateName(_engine, "_strokeJoin");
  var _isAntiAlias = dart.privateName(_engine, "_isAntiAlias");
  var _color = dart.privateName(_engine, "_color");
  var _invertColors = dart.privateName(_engine, "_invertColors");
  var _originalColorFilter = dart.privateName(_engine, "_originalColorFilter");
  var _shader = dart.privateName(_engine, "_shader");
  var _maskFilter = dart.privateName(_engine, "_maskFilter");
  var _ckMaskFilter = dart.privateName(_engine, "_ckMaskFilter");
  var _filterQuality = dart.privateName(_engine, "_filterQuality");
  var _engineColorFilter = dart.privateName(_engine, "_engineColorFilter");
  var _effectiveColorFilter = dart.privateName(_engine, "_effectiveColorFilter");
  var _strokeMiterLimit = dart.privateName(_engine, "_strokeMiterLimit");
  _engine.CkPaint = class CkPaint extends core.Object {
    get skiaObject() {
      return this[skiaObject];
    }
    set skiaObject(value) {
      super.skiaObject = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.CkPaint.new();
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[252], 22, 33, "_ref#param");
      if (dart.test(this[__CkPaint__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkPaint__ref_isSet] = true;
        this[__CkPaint__ref] = _ref$35param;
      }
    }
    get [_ref]() {
      let t$36515;
      return dart.test(this[__CkPaint__ref_isSet]) ? (t$36515 = this[__CkPaint__ref], t$36515) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    get debugRef() {
      return this[_ref];
    }
    get blendMode() {
      return this[_blendMode$];
    }
    set blendMode(value) {
      if (value == null) dart.nullFailed(I[252], 36, 30, "value");
      if (this[_blendMode$] == value) {
        return;
      }
      this[_blendMode$] = value;
      this.skiaObject.setBlendMode(_engine.toSkBlendMode(value));
    }
    get style() {
      return this[_style$0];
    }
    set style(value) {
      if (value == null) dart.nullFailed(I[252], 50, 30, "value");
      if (this[_style$0] == value) {
        return;
      }
      this[_style$0] = value;
      this.skiaObject.setStyle(_engine.toSkPaintStyle(value));
    }
    get strokeWidth() {
      return this[_strokeWidth];
    }
    set strokeWidth(value) {
      if (value == null) dart.nullFailed(I[252], 63, 26, "value");
      if (this[_strokeWidth] == value) {
        return;
      }
      this[_strokeWidth] = value;
      _engine['SkPaintExtension|setStrokeWidth'](this.skiaObject, value);
    }
    get strokeCap() {
      return this[_strokeCap];
    }
    set strokeCap(value) {
      if (value == null) dart.nullFailed(I[252], 76, 30, "value");
      if (this[_strokeCap] == value) {
        return;
      }
      this[_strokeCap] = value;
      this.skiaObject.setStrokeCap(_engine.toSkStrokeCap(value));
    }
    get strokeJoin() {
      return this[_strokeJoin];
    }
    set strokeJoin(value) {
      if (value == null) dart.nullFailed(I[252], 89, 32, "value");
      if (this[_strokeJoin] == value) {
        return;
      }
      this[_strokeJoin] = value;
      this.skiaObject.setStrokeJoin(_engine.toSkStrokeJoin(value));
    }
    get isAntiAlias() {
      return this[_isAntiAlias];
    }
    set isAntiAlias(value) {
      if (value == null) dart.nullFailed(I[252], 102, 24, "value");
      if (this[_isAntiAlias] == value) {
        return;
      }
      this[_isAntiAlias] = value;
      _engine['SkPaintExtension|setAntiAlias'](this.skiaObject, value);
    }
    get color() {
      return new ui.Color.new(this[_color]);
    }
    set color(value) {
      if (value == null) dart.nullFailed(I[252], 115, 22, "value");
      if (this[_color] == value.value) {
        return;
      }
      this[_color] = value.value;
      _engine['SkPaintExtension|setColorInt'](this.skiaObject, value.value);
    }
    get invertColors() {
      return this[_invertColors];
    }
    set invertColors(value) {
      let t$36515;
      if (value == null) dart.nullFailed(I[252], 128, 25, "value");
      if (value == this[_invertColors]) {
        return;
      }
      if (!dart.test(value)) {
        this[_effectiveColorFilter] = this[_originalColorFilter];
        this[_originalColorFilter] = null;
      } else {
        this[_originalColorFilter] = this[_effectiveColorFilter];
        if (this[_effectiveColorFilter] == null) {
          this[_effectiveColorFilter] = _engine._invertColorFilter;
        } else {
          this[_effectiveColorFilter] = new _engine.ManagedSkColorFilter.new(new _engine.CkComposeColorFilter.new(_engine._invertColorFilter, dart.nullCheck(this[_effectiveColorFilter])));
        }
      }
      this.skiaObject.setColorFilter((t$36515 = this[_effectiveColorFilter], t$36515 == null ? null : t$36515.skiaObject));
      this[_invertColors] = value;
    }
    get shader() {
      return this[_shader];
    }
    set shader(value) {
      let t$36515;
      if (dart.equals(this[_shader], value)) {
        return;
      }
      this[_shader] = T$10.CkShaderN()[_as](value);
      this.skiaObject.setShader((t$36515 = this[_shader], t$36515 == null ? null : t$36515.getSkShader(this[_filterQuality])));
    }
    get maskFilter() {
      return this[_maskFilter];
    }
    set maskFilter(value) {
      let t$36515;
      if (dart.equals(value, this[_maskFilter])) {
        return;
      }
      this[_maskFilter] = value;
      if (value != null) {
        if (!(value.webOnlySigma[$isFinite] && dart.notNull(value.webOnlySigma) > 0)) {
          this[_ckMaskFilter] = null;
        } else {
          this[_ckMaskFilter] = new _engine.CkMaskFilter.blur(value.webOnlyBlurStyle, value.webOnlySigma);
        }
      } else {
        this[_ckMaskFilter] = null;
      }
      this.skiaObject.setMaskFilter((t$36515 = this[_ckMaskFilter], t$36515 == null ? null : t$36515.skiaObject));
    }
    get filterQuality() {
      return this[_filterQuality];
    }
    set filterQuality(value) {
      let t$36515;
      if (value == null) dart.nullFailed(I[252], 199, 38, "value");
      if (this[_filterQuality] == value) {
        return;
      }
      this[_filterQuality] = value;
      this.skiaObject.setShader((t$36515 = this[_shader], t$36515 == null ? null : t$36515.getSkShader(value)));
    }
    get colorFilter() {
      return this[_engineColorFilter];
    }
    set colorFilter(value) {
      let t$36515;
      if (dart.equals(this[_engineColorFilter], value)) {
        return;
      }
      this[_engineColorFilter] = T$10.EngineColorFilterN()[_as](value);
      this[_originalColorFilter] = null;
      if (value == null) {
        this[_effectiveColorFilter] = null;
      } else {
        let ckColorFilter = dart.nullCheck(_engine.createCkColorFilter(value));
        this[_effectiveColorFilter] = new _engine.ManagedSkColorFilter.new(ckColorFilter);
      }
      if (dart.test(this.invertColors)) {
        this[_originalColorFilter] = this[_effectiveColorFilter];
        if (this[_effectiveColorFilter] == null) {
          this[_effectiveColorFilter] = _engine._invertColorFilter;
        } else {
          this[_effectiveColorFilter] = new _engine.ManagedSkColorFilter.new(new _engine.CkComposeColorFilter.new(_engine._invertColorFilter, dart.nullCheck(this[_effectiveColorFilter])));
        }
      }
      this.skiaObject.setColorFilter((t$36515 = this[_effectiveColorFilter], t$36515 == null ? null : t$36515.skiaObject));
    }
    get strokeMiterLimit() {
      return this[_strokeMiterLimit];
    }
    set strokeMiterLimit(value) {
      if (value == null) dart.nullFailed(I[252], 249, 31, "value");
      if (this[_strokeMiterLimit] == value) {
        return;
      }
      this[_strokeMiterLimit] = value;
      _engine['SkPaintExtension|setStrokeMiter'](this.skiaObject, value);
    }
    get imageFilter() {
      return this[_imageFilter];
    }
    set imageFilter(value) {
      if (dart.equals(this[_imageFilter], value)) {
        return;
      }
      let filter = null;
      if (T$9.ColorFilter()[_is](value)) {
        filter = _engine.createCkColorFilter(T$9.EngineColorFilter()[_as](value));
      } else {
        filter = T$10.CkManagedSkImageFilterConvertibleN()[_as](value);
      }
      if (filter != null) {
        filter.imageFilter(dart.fn(skImageFilter => {
          if (skImageFilter == null) dart.nullFailed(I[252], 275, 41, "skImageFilter");
          this.skiaObject.setImageFilter(skImageFilter);
        }, T$9.SkImageFilterTovoid()));
      }
      this[_imageFilter] = filter;
    }
    dispose() {
      this[_ref].dispose();
    }
    toString() {
      let resultString = "Paint()";
      if (!dart.test(dart.fn(() => {
        let result = new core.StringBuffer.new();
        let semicolon = "";
        result.write("Paint(");
        if (this.style == ui.PaintingStyle.stroke) {
          result.write(dart.str(this.style));
          if (this.strokeWidth !== 0.0) {
            result.write(" " + this.strokeWidth[$toStringAsFixed](1));
          } else {
            result.write(" hairline");
          }
          if (this.strokeCap != ui.StrokeCap.butt) {
            result.write(" " + dart.str(this.strokeCap));
          }
          if (this.strokeJoin == ui.StrokeJoin.miter) {
            if (this.strokeMiterLimit !== 4) {
              result.write(" " + dart.str(this.strokeJoin) + " up to " + this.strokeMiterLimit[$toStringAsFixed](1));
            }
          } else {
            result.write(" " + dart.str(this.strokeJoin));
          }
          semicolon = "; ";
        }
        if (!dart.test(this.isAntiAlias)) {
          result.write(semicolon + "antialias off");
          semicolon = "; ";
        }
        if (!dart.equals(this.color, C[609] || CT.C609)) {
          result.write(semicolon + dart.str(this.color));
          semicolon = "; ";
        }
        if (this.blendMode.index != _engine.CkPaint._kBlendModeDefault) {
          result.write(semicolon + dart.str(this.blendMode));
          semicolon = "; ";
        }
        if (this.colorFilter != null) {
          result.write(semicolon + "colorFilter: " + dart.str(this.colorFilter));
          semicolon = "; ";
        }
        if (this.maskFilter != null) {
          result.write(semicolon + "maskFilter: " + dart.str(this.maskFilter));
          semicolon = "; ";
        }
        if (this.filterQuality != ui.FilterQuality.none) {
          result.write(semicolon + "filterQuality: " + dart.str(this.filterQuality));
          semicolon = "; ";
        }
        if (this.shader != null) {
          result.write(semicolon + "shader: " + dart.str(this.shader));
          semicolon = "; ";
        }
        if (this.imageFilter != null) {
          result.write(semicolon + "imageFilter: " + dart.str(this.imageFilter));
          semicolon = "; ";
        }
        if (dart.test(this.invertColors)) {
          result.write(semicolon + "invert: " + dart.str(this.invertColors));
        }
        result.write(")");
        resultString = dart.toString(result);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[252], 303, 12, "() {\n      final StringBuffer result = StringBuffer();\n      String semicolon = '';\n      result.write('Paint(');\n      if (style == ui.PaintingStyle.stroke) {\n        result.write('$style');\n        if (strokeWidth != 0.0) {\n          result.write(' ${strokeWidth.toStringAsFixed(1)}');\n        } else {\n          result.write(' hairline');\n        }\n        if (strokeCap != ui.StrokeCap.butt) {\n          result.write(' $strokeCap');\n        }\n        if (strokeJoin == ui.StrokeJoin.miter) {\n          if (strokeMiterLimit != _kStrokeMiterLimitDefault) {\n            result.write(' $strokeJoin up to ${strokeMiterLimit.toStringAsFixed(1)}');\n          }\n        } else {\n          result.write(' $strokeJoin');\n        }\n        semicolon = '; ';\n      }\n      if (!isAntiAlias) {\n        result.write('${semicolon}antialias off');\n        semicolon = '; ';\n      }\n      if (color != const ui.Color(_kColorDefault)) {\n        result.write('$semicolon$color');\n        semicolon = '; ';\n      }\n      if (blendMode.index != _kBlendModeDefault) {\n        result.write('$semicolon$blendMode');\n        semicolon = '; ';\n      }\n      if (colorFilter != null) {\n        result.write('${semicolon}colorFilter: $colorFilter');\n        semicolon = '; ';\n      }\n      if (maskFilter != null) {\n        result.write('${semicolon}maskFilter: $maskFilter');\n        semicolon = '; ';\n      }\n      if (filterQuality != ui.FilterQuality.none) {\n        result.write('${semicolon}filterQuality: $filterQuality');\n        semicolon = '; ';\n      }\n      if (shader != null) {\n        result.write('${semicolon}shader: $shader');\n        semicolon = '; ';\n      }\n      if (imageFilter != null) {\n        result.write('${semicolon}imageFilter: $imageFilter');\n        semicolon = '; ';\n      }\n      if (invertColors) {\n        result.write('${semicolon}invert: $invertColors');\n      }\n      result.write(')');\n      resultString = result.toString();\n      return true;\n    }()");
      return resultString;
    }
  };
  (_engine.CkPaint.new = function() {
    this[__CkPaint__ref] = null;
    this[__CkPaint__ref_isSet] = false;
    this[_imageFilter] = null;
    this[_blendMode$] = ui.BlendMode.srcOver;
    this[_style$0] = ui.PaintingStyle.fill;
    this[_strokeWidth] = 0.0;
    this[_strokeCap] = ui.StrokeCap.butt;
    this[_strokeJoin] = ui.StrokeJoin.miter;
    this[_isAntiAlias] = true;
    this[_color] = 4278190080.0;
    this[_invertColors] = false;
    this[_originalColorFilter] = null;
    this[_shader] = null;
    this[_maskFilter] = null;
    this[_ckMaskFilter] = null;
    this[_filterQuality] = ui.FilterQuality.none;
    this[_engineColorFilter] = null;
    this[_effectiveColorFilter] = null;
    this[_strokeMiterLimit] = 0.0;
    this[skiaObject] = T$10.SkPaint()[_as](new dart.global.window.flutterCanvasKit.Paint());
    _engine['SkPaintExtension|setAntiAlias'](this.skiaObject, this[_isAntiAlias]);
    _engine['SkPaintExtension|setColorInt'](this.skiaObject, 4278190080.0);
    this[_ref] = new (G$.UniqueRefOfSkPaint()).new(this, this.skiaObject, "Paint");
  }).prototype = _engine.CkPaint.prototype;
  dart.addRtiResources(_engine.CkPaint, ["_engine|CkPaint", "ui|Paint"]);
  dart.setMethodSignature(_engine.CkPaint, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkPaint))));
  dart.setGetterSignature(_engine.CkPaint, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkPaint(),
    debugRef: T$10.UniqueRefOfSkPaint(),
    blendMode: T$8.BlendMode(),
    style: T$8.PaintingStyle(),
    strokeWidth: T$.double(),
    strokeCap: T$8.StrokeCap(),
    strokeJoin: T$8.StrokeJoin(),
    isAntiAlias: T$.bool(),
    color: T$8.Color(),
    invertColors: T$.bool(),
    shader: T$10.ShaderN(),
    maskFilter: T$9.MaskFilterN(),
    filterQuality: T$9.FilterQuality(),
    colorFilter: T$10.ColorFilterN(),
    strokeMiterLimit: T$.double(),
    imageFilter: T$10.ImageFilterN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkPaint))));
  dart.setSetterSignature(_engine.CkPaint, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkPaint(),
    blendMode: T$8.BlendMode(),
    style: T$8.PaintingStyle(),
    strokeWidth: T$.double(),
    strokeCap: T$8.StrokeCap(),
    strokeJoin: T$8.StrokeJoin(),
    isAntiAlias: T$.bool(),
    color: T$8.Color(),
    invertColors: T$.bool(),
    shader: T$10.ShaderN(),
    maskFilter: T$9.MaskFilterN(),
    filterQuality: T$9.FilterQuality(),
    colorFilter: T$10.ColorFilterN(),
    strokeMiterLimit: T$.double(),
    imageFilter: T$10.ImageFilterN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkPaint))));
  dart.setLibraryUri(_engine.CkPaint, I[220]);
  dart.setFieldSignature(_engine.CkPaint, () => dart.global.Object.setPrototypeOf({
    skiaObject: {type: T$10.SkPaint(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__CkPaint__ref]: {type: T$10.UniqueRefNOfSkPaint(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkPaint__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_imageFilter]: {type: T$10.CkManagedSkImageFilterConvertibleN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_blendMode$]: {type: T$8.BlendMode(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_style$0]: {type: T$8.PaintingStyle(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_strokeWidth]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_strokeCap]: {type: T$8.StrokeCap(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_strokeJoin]: {type: T$8.StrokeJoin(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_isAntiAlias]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_color]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_invertColors]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_originalColorFilter]: {type: T$9.ManagedSkColorFilterN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_shader]: {type: T$10.CkShaderN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_maskFilter]: {type: T$9.MaskFilterN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_ckMaskFilter]: {type: T$10.CkMaskFilterN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_filterQuality]: {type: T$9.FilterQuality(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_engineColorFilter]: {type: T$10.EngineColorFilterN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_effectiveColorFilter]: {type: T$9.ManagedSkColorFilterN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_strokeMiterLimit]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkPaint))));
  dart.setStaticFieldSignature(_engine.CkPaint, () => ['_defaultPaintColor', '_kStrokeMiterLimitDefault', '_kColorDefault', '_kBlendModeDefault']);
  dart.defineExtensionMethods(_engine.CkPaint, ['toString']);
  dart.defineLazy(_engine.CkPaint, {
    /*_engine.CkPaint._defaultPaintColor*/get _defaultPaintColor() {
      return 4278190080.0;
    },
    /*_engine.CkPaint._kStrokeMiterLimitDefault*/get _kStrokeMiterLimitDefault() {
      return 4;
    },
    /*_engine.CkPaint._kColorDefault*/get _kColorDefault() {
      return 4278190080.0;
    },
    /*_engine.CkPaint._kBlendModeDefault*/get _kBlendModeDefault() {
      return ui.BlendMode.srcOver.index;
    }
  }, false);
  var name$19 = dart.privateName(_engine, "CkFragmentProgram.name");
  var effect$ = dart.privateName(_engine, "CkFragmentProgram.effect");
  var uniforms$ = dart.privateName(_engine, "CkFragmentProgram.uniforms");
  var floatCount$ = dart.privateName(_engine, "CkFragmentProgram.floatCount");
  var textureCount$ = dart.privateName(_engine, "CkFragmentProgram.textureCount");
  _engine.CkFragmentProgram = class CkFragmentProgram extends core.Object {
    get name() {
      return this[name$19];
    }
    set name(value) {
      super.name = value;
    }
    get effect() {
      return this[effect$];
    }
    set effect(value) {
      super.effect = value;
    }
    get uniforms() {
      return this[uniforms$];
    }
    set uniforms(value) {
      super.uniforms = value;
    }
    get floatCount() {
      return this[floatCount$];
    }
    set floatCount(value) {
      super.floatCount = value;
    }
    get textureCount() {
      return this[textureCount$];
    }
    set textureCount(value) {
      super.textureCount = value;
    }
    static ['_#new#tearOff'](name, effect, uniforms, floatCount, textureCount) {
      if (name == null) dart.nullFailed(I[252], 380, 26, "name");
      if (effect == null) dart.nullFailed(I[252], 380, 37, "effect");
      if (uniforms == null) dart.nullFailed(I[252], 380, 50, "uniforms");
      if (floatCount == null) dart.nullFailed(I[252], 380, 65, "floatCount");
      if (textureCount == null) dart.nullFailed(I[252], 381, 12, "textureCount");
      return new _engine.CkFragmentProgram.new(name, effect, uniforms, floatCount, textureCount);
    }
    static fromBytes(name, data) {
      if (name == null) dart.nullFailed(I[252], 383, 46, "name");
      if (data == null) dart.nullFailed(I[252], 383, 62, "data");
      let shaderData = _engine.ShaderData.fromBytes(data);
      let effect = _engine.MakeRuntimeEffect(shaderData.source);
      if (effect == null) {
        dart.throw(C[836] || CT.C836);
      }
      return new _engine.CkFragmentProgram.new(name, effect, shaderData.uniforms, shaderData.floatCount, shaderData.textureCount);
    }
    static ['_#fromBytes#tearOff'](name, data) {
      if (name == null) dart.nullFailed(I[252], 383, 46, "name");
      if (data == null) dart.nullFailed(I[252], 383, 62, "data");
      return _engine.CkFragmentProgram.fromBytes(name, data);
    }
    fragmentShader() {
      return new _engine.CkFragmentShader.new(this.name, this.effect, this.floatCount, this.textureCount);
    }
  };
  (_engine.CkFragmentProgram.new = function(name, effect, uniforms, floatCount, textureCount) {
    if (name == null) dart.nullFailed(I[252], 380, 26, "name");
    if (effect == null) dart.nullFailed(I[252], 380, 37, "effect");
    if (uniforms == null) dart.nullFailed(I[252], 380, 50, "uniforms");
    if (floatCount == null) dart.nullFailed(I[252], 380, 65, "floatCount");
    if (textureCount == null) dart.nullFailed(I[252], 381, 12, "textureCount");
    this[name$19] = name;
    this[effect$] = effect;
    this[uniforms$] = uniforms;
    this[floatCount$] = floatCount;
    this[textureCount$] = textureCount;
    ;
  }).prototype = _engine.CkFragmentProgram.prototype;
  dart.addRtiResources(_engine.CkFragmentProgram, ["_engine|CkFragmentProgram", "ui|FragmentProgram"]);
  dart.setMethodSignature(_engine.CkFragmentProgram, () => dart.global.Object.setPrototypeOf({fragmentShader: T$10.VoidToFragmentShader()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkFragmentProgram))));
  dart.setStaticMethodSignature(_engine.CkFragmentProgram, () => ['fromBytes']);
  dart.setLibraryUri(_engine.CkFragmentProgram, I[220]);
  dart.setFieldSignature(_engine.CkFragmentProgram, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    effect: {type: T$10.SkRuntimeEffect(), isConst: false, isFinal: true, libraryUri: I[220]},
    uniforms: {type: T$10.ListOfUniformData(), isConst: false, isFinal: true, libraryUri: I[11]},
    floatCount: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    textureCount: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkFragmentProgram))));
  var name$20 = dart.privateName(_engine, "CkFragmentShader.name");
  var effect$0 = dart.privateName(_engine, "CkFragmentShader.effect");
  var lastFloatIndex = dart.privateName(_engine, "CkFragmentShader.lastFloatIndex");
  var floats = dart.privateName(_engine, "CkFragmentShader.floats");
  var samplers = dart.privateName(_engine, "CkFragmentShader.samplers");
  var ref = dart.privateName(_engine, "CkFragmentShader.ref");
  var _debugDisposed = dart.privateName(_engine, "_debugDisposed");
  _engine.CkFragmentShader = class CkFragmentShader extends core.Object {
    get name() {
      return this[name$20];
    }
    set name(value) {
      super.name = value;
    }
    get effect() {
      return this[effect$0];
    }
    set effect(value) {
      super.effect = value;
    }
    get lastFloatIndex() {
      return this[lastFloatIndex];
    }
    set lastFloatIndex(value) {
      super.lastFloatIndex = value;
    }
    get floats() {
      return this[floats];
    }
    set floats(value) {
      super.floats = value;
    }
    get samplers() {
      return this[samplers];
    }
    set samplers(value) {
      super.samplers = value;
    }
    get ref() {
      return this[ref];
    }
    set ref(value) {
      this[ref] = value;
    }
    static ['_#new#tearOff'](name, effect, floatCount, textureCount) {
      if (name == null) dart.nullFailed(I[252], 412, 25, "name");
      if (effect == null) dart.nullFailed(I[252], 412, 36, "effect");
      if (floatCount == null) dart.nullFailed(I[252], 412, 48, "floatCount");
      if (textureCount == null) dart.nullFailed(I[252], 412, 64, "textureCount");
      return new _engine.CkFragmentShader.new(name, effect, floatCount, textureCount);
    }
    getSkShader(contextualQuality) {
      let t$36515;
      if (contextualQuality == null) dart.nullFailed(I[252], 427, 41, "contextualQuality");
      if (!!dart.test(this[_debugDisposed])) dart.assertFailed("FragmentShader has been disposed of.", I[252], 428, 12, "!_debugDisposed");
      t$36515 = this.ref;
      t$36515 == null ? null : t$36515.dispose();
      let result = dart.test(this.samplers[$isEmpty]) ? _engine['SkSkRuntimeEffectExtension|makeShader'](this.effect, this.floats) : _engine['SkSkRuntimeEffectExtension|makeShaderWithChildren'](this.effect, this.floats, this.samplers);
      if (result == null) {
        dart.throw(core.Exception.new("Invalid uniform data for shader " + dart.str(this.name) + ":" + "  floatUniforms: " + dart.str(this.floats) + " \n" + "  samplerUniforms: " + dart.str(this.samplers) + " \n"));
      }
      this.ref = new (G$.UniqueRefOfSkShader()).new(this, result, "FragmentShader");
      return result;
    }
    setFloat(index, value) {
      if (index == null) dart.nullFailed(I[252], 445, 21, "index");
      if (value == null) dart.nullFailed(I[252], 445, 35, "value");
      if (!!dart.test(this[_debugDisposed])) dart.assertFailed("FragmentShader has been disposed of.", I[252], 446, 12, "!_debugDisposed");
      _engine['SkFloat32ListExtension|toTypedArray'](this.floats)[$_set](index, value);
    }
    setImageSampler(index, image) {
      if (index == null) dart.nullFailed(I[252], 451, 28, "index");
      if (image == null) dart.nullFailed(I[252], 451, 44, "image");
      if (!!dart.test(this[_debugDisposed])) dart.assertFailed("FragmentShader has been disposed of.", I[252], 452, 12, "!_debugDisposed");
      let sampler = ui.ImageShader.new(image, ui.TileMode.clamp, ui.TileMode.clamp, _engine.toMatrix64(new _engine.Matrix4.identity().storage));
      this.samplers[$_set](index, T$10.CkShader()[_as](sampler).getSkShader(ui.FilterQuality.none));
      this.setFloat(dart.notNull(this.lastFloatIndex) + 2 * dart.notNull(index), T$10.CkImageShader()[_as](sampler).imageWidth[$toDouble]());
      this.setFloat(dart.notNull(this.lastFloatIndex) + 2 * dart.notNull(index) + 1, sampler.imageHeight[$toDouble]());
    }
    dispose() {
      let t$36515;
      if (!!dart.test(this[_debugDisposed])) dart.assertFailed("Cannot dispose FragmentShader more than once.", I[252], 462, 12, "!_debugDisposed");
      if (!dart.test(dart.fn(() => {
        this[_debugDisposed] = true;
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[252], 463, 12, "() {\n      _debugDisposed = true;\n      return true;\n    }()");
      t$36515 = this.ref;
      t$36515 == null ? null : t$36515.dispose();
      this.ref = null;
      dart.global.window.flutterCanvasKit.Free(this.floats);
    }
    get debugDisposed() {
      return this[_debugDisposed];
    }
  };
  (_engine.CkFragmentShader.new = function(name, effect, floatCount, textureCount) {
    if (name == null) dart.nullFailed(I[252], 412, 25, "name");
    if (effect == null) dart.nullFailed(I[252], 412, 36, "effect");
    if (floatCount == null) dart.nullFailed(I[252], 412, 48, "floatCount");
    if (textureCount == null) dart.nullFailed(I[252], 412, 64, "textureCount");
    this[ref] = null;
    this[_debugDisposed] = false;
    this[name$20] = name;
    this[effect$0] = effect;
    this[floats] = _engine.mallocFloat32List(dart.notNull(floatCount) + dart.notNull(textureCount) * 2);
    this[samplers] = G$.ListOfSkShaderN().filled(textureCount, null);
    this[lastFloatIndex] = floatCount;
    ;
  }).prototype = _engine.CkFragmentShader.prototype;
  dart.addRtiResources(_engine.CkFragmentShader, ["_engine|CkFragmentShader", "ui|FragmentShader", "_engine|CkShader", "ui|Shader"]);
  dart.setMethodSignature(_engine.CkFragmentShader, () => dart.global.Object.setPrototypeOf({
    getSkShader: T$10.FilterQualityToSkShader(),
    setFloat: T$10.intAnddoubleTovoid(),
    setImageSampler: T$10.intAndImageTovoid(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkFragmentShader))));
  dart.setGetterSignature(_engine.CkFragmentShader, () => dart.global.Object.setPrototypeOf({debugDisposed: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkFragmentShader))));
  dart.setLibraryUri(_engine.CkFragmentShader, I[220]);
  dart.setFieldSignature(_engine.CkFragmentShader, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    effect: {type: T$10.SkRuntimeEffect(), isConst: false, isFinal: true, libraryUri: I[220]},
    lastFloatIndex: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    floats: {type: T$10.SkFloat32List(), isConst: false, isFinal: true, libraryUri: I[220]},
    samplers: {type: T$10.ListOfSkShaderN(), isConst: false, isFinal: true, libraryUri: I[11]},
    ref: {type: T$10.UniqueRefNOfSkShader(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_debugDisposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkFragmentShader))));
  var __CkPath__ref = dart.privateName(_engine, "_#CkPath#_ref");
  var __CkPath__ref_isSet = dart.privateName(_engine, "_#CkPath#_ref#isSet");
  var _fillType$ = dart.privateName(_engine, "_fillType");
  _engine.CkPath = class CkPath extends core.Object {
    static ['_#new#tearOff']() {
      return _engine.CkPath.new();
    }
    static new() {
      let skPath = T$10.SkPath()[_as](new dart.global.window.flutterCanvasKit.Path());
      skPath.setFillType(_engine.toSkFillType(ui.PathFillType.nonZero));
      return new _engine.CkPath.__(skPath, ui.PathFillType.nonZero);
    }
    static ['_#from#tearOff'](other) {
      if (other == null) dart.nullFailed(I[253], 19, 30, "other");
      return _engine.CkPath.from(other);
    }
    static from(other) {
      if (other == null) dart.nullFailed(I[253], 19, 30, "other");
      let skPath = T$10.SkPath()[_as](other.skiaObject.copy());
      skPath.setFillType(_engine.toSkFillType(other[_fillType$]));
      return new _engine.CkPath.__(skPath, other[_fillType$]);
    }
    static ['_#fromSkPath#tearOff'](skPath, fillType) {
      if (skPath == null) dart.nullFailed(I[253], 25, 36, "skPath");
      if (fillType == null) dart.nullFailed(I[253], 25, 60, "fillType");
      return _engine.CkPath.fromSkPath(skPath, fillType);
    }
    static fromSkPath(skPath, fillType) {
      if (skPath == null) dart.nullFailed(I[253], 25, 36, "skPath");
      if (fillType == null) dart.nullFailed(I[253], 25, 60, "fillType");
      skPath.setFillType(_engine.toSkFillType(fillType));
      return new _engine.CkPath.__(skPath, fillType);
    }
    static ['_#_#tearOff'](nativeObject, _fillType) {
      if (nativeObject == null) dart.nullFailed(I[253], 30, 19, "nativeObject");
      if (_fillType == null) dart.nullFailed(I[253], 30, 38, "_fillType");
      return new _engine.CkPath.__(nativeObject, _fillType);
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[253], 34, 32, "_ref#param");
      if (dart.test(this[__CkPath__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkPath__ref_isSet] = true;
        this[__CkPath__ref] = _ref$35param;
      }
    }
    get [_ref]() {
      let t$36515;
      return dart.test(this[__CkPath__ref_isSet]) ? (t$36515 = this[__CkPath__ref], t$36515) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    get skiaObject() {
      return this[_ref].nativeObject;
    }
    get fillType() {
      return this[_fillType$];
    }
    set fillType(newFillType) {
      if (newFillType == null) dart.nullFailed(I[253], 44, 32, "newFillType");
      if (this[_fillType$] == newFillType) {
        return;
      }
      this[_fillType$] = newFillType;
      this.skiaObject.setFillType(_engine.toSkFillType(newFillType));
    }
    addArc(oval, startAngle, sweepAngle) {
      if (oval == null) dart.nullFailed(I[253], 53, 23, "oval");
      if (startAngle == null) dart.nullFailed(I[253], 53, 36, "startAngle");
      if (sweepAngle == null) dart.nullFailed(I[253], 53, 55, "sweepAngle");
      _engine['SkPathExtension|addArc'](this.skiaObject, _engine.toSkRect(oval), dart.notNull(startAngle) * 57.29577951308232, dart.notNull(sweepAngle) * 57.29577951308232);
    }
    addOval(oval) {
      if (oval == null) dart.nullFailed(I[253], 63, 24, "oval");
      _engine['SkPathExtension|addOval'](this.skiaObject, _engine.toSkRect(oval), false, 1.0);
    }
    addPath(path, offset, opts) {
      let t$36516, t$36515, t$36516$, t$36515$;
      if (path == null) dart.nullFailed(I[253], 68, 24, "path");
      if (offset == null) dart.nullFailed(I[253], 68, 40, "offset");
      let matrix4 = opts && 'matrix4' in opts ? opts.matrix4 : null;
      let skMatrix = null;
      if (matrix4 == null) {
        skMatrix = _engine.toSkMatrixFromFloat32(_engine.Matrix4.translationValues(offset.dx, offset.dy, 0.0).storage);
      } else {
        skMatrix = _engine.toSkMatrixFromFloat64(matrix4);
        t$36515 = skMatrix;
        t$36516 = 2;
        t$36515[$_set](t$36516, dart.notNull(t$36515[$_get](t$36516)) + dart.notNull(offset.dx));
        t$36515$ = skMatrix;
        t$36516$ = 5;
        t$36515$[$_set](t$36516$, dart.notNull(t$36515$[$_get](t$36516$)) + dart.notNull(offset.dy));
      }
      let otherPath = T$9.CkPath()[_as](path);
      _engine['SkPathExtension|addPath'](this.skiaObject, otherPath.skiaObject, skMatrix[$_get](0), skMatrix[$_get](1), skMatrix[$_get](2), skMatrix[$_get](3), skMatrix[$_get](4), skMatrix[$_get](5), skMatrix[$_get](6), skMatrix[$_get](7), skMatrix[$_get](8), false);
    }
    addPolygon(points, close) {
      if (points == null) dart.nullFailed(I[253], 95, 35, "points");
      if (close == null) dart.nullFailed(I[253], 95, 48, "close");
      let encodedPoints = _engine.toMallocedSkPoints(points);
      _engine['SkPathExtension|addPoly'](this.skiaObject, _engine['SkFloat32ListExtension|toTypedArray'](encodedPoints), close);
      dart.global.window.flutterCanvasKit.Free(encodedPoints);
    }
    addRRect(rrect) {
      if (rrect == null) dart.nullFailed(I[253], 102, 26, "rrect");
      _engine['SkPathExtension|addRRect'](this.skiaObject, _engine.toSkRRect(rrect), false);
    }
    addRect(rect) {
      if (rect == null) dart.nullFailed(I[253], 110, 24, "rect");
      _engine['SkPathExtension|addRect'](this.skiaObject, _engine.toSkRect(rect));
    }
    arcTo(rect, startAngle, sweepAngle, forceMoveTo) {
      if (rect == null) dart.nullFailed(I[253], 116, 15, "rect");
      if (startAngle == null) dart.nullFailed(I[253], 116, 28, "startAngle");
      if (sweepAngle == null) dart.nullFailed(I[253], 116, 47, "sweepAngle");
      if (forceMoveTo == null) dart.nullFailed(I[253], 116, 64, "forceMoveTo");
      _engine['SkPathExtension|arcToOval'](this.skiaObject, _engine.toSkRect(rect), dart.notNull(startAngle) * 57.29577951308232, dart.notNull(sweepAngle) * 57.29577951308232, forceMoveTo);
    }
    arcToPoint(arcEnd, opts) {
      if (arcEnd == null) dart.nullFailed(I[253], 127, 29, "arcEnd");
      let radius = opts && 'radius' in opts ? opts.radius : C[528] || CT.C528;
      if (radius == null) dart.nullFailed(I[253], 128, 18, "radius");
      let rotation = opts && 'rotation' in opts ? opts.rotation : 0;
      if (rotation == null) dart.nullFailed(I[253], 129, 14, "rotation");
      let largeArc = opts && 'largeArc' in opts ? opts.largeArc : false;
      if (largeArc == null) dart.nullFailed(I[253], 130, 12, "largeArc");
      let clockwise = opts && 'clockwise' in opts ? opts.clockwise : true;
      if (clockwise == null) dart.nullFailed(I[253], 131, 12, "clockwise");
      _engine['SkPathExtension|arcToRotated'](this.skiaObject, radius.x, radius.y, rotation, !dart.test(largeArc), !dart.test(clockwise), arcEnd.dx, arcEnd.dy);
    }
    close() {
      this.skiaObject.close();
    }
    computeMetrics(opts) {
      let forceClosed = opts && 'forceClosed' in opts ? opts.forceClosed : false;
      if (forceClosed == null) dart.nullFailed(I[253], 149, 39, "forceClosed");
      return new _engine.CkPathMetrics.new(this, forceClosed);
    }
    conicTo(x1, y1, x2, y2, w) {
      if (x1 == null) dart.nullFailed(I[253], 154, 23, "x1");
      if (y1 == null) dart.nullFailed(I[253], 154, 34, "y1");
      if (x2 == null) dart.nullFailed(I[253], 154, 45, "x2");
      if (y2 == null) dart.nullFailed(I[253], 154, 56, "y2");
      if (w == null) dart.nullFailed(I[253], 154, 67, "w");
      _engine['SkPathExtension|conicTo'](this.skiaObject, x1, y1, x2, y2, w);
    }
    contains(point) {
      if (point == null) dart.nullFailed(I[253], 159, 27, "point");
      return _engine['SkPathExtension|contains'](this.skiaObject, point.dx, point.dy);
    }
    cubicTo(x1, y1, x2, y2, x3, y3) {
      if (x1 == null) dart.nullFailed(I[253], 165, 14, "x1");
      if (y1 == null) dart.nullFailed(I[253], 165, 25, "y1");
      if (x2 == null) dart.nullFailed(I[253], 165, 36, "x2");
      if (y2 == null) dart.nullFailed(I[253], 165, 47, "y2");
      if (x3 == null) dart.nullFailed(I[253], 165, 58, "x3");
      if (y3 == null) dart.nullFailed(I[253], 165, 69, "y3");
      _engine['SkPathExtension|cubicTo'](this.skiaObject, x1, y1, x2, y2, x3, y3);
    }
    extendWithPath(path, offset, opts) {
      let t$36516, t$36515, t$36516$, t$36515$;
      if (path == null) dart.nullFailed(I[253], 170, 31, "path");
      if (offset == null) dart.nullFailed(I[253], 170, 47, "offset");
      let matrix4 = opts && 'matrix4' in opts ? opts.matrix4 : null;
      let skMatrix = null;
      if (matrix4 == null) {
        skMatrix = _engine.toSkMatrixFromFloat32(_engine.Matrix4.translationValues(offset.dx, offset.dy, 0.0).storage);
      } else {
        skMatrix = _engine.toSkMatrixFromFloat64(matrix4);
        t$36515 = skMatrix;
        t$36516 = 2;
        t$36515[$_set](t$36516, dart.notNull(t$36515[$_get](t$36516)) + dart.notNull(offset.dx));
        t$36515$ = skMatrix;
        t$36516$ = 5;
        t$36515$[$_set](t$36516$, dart.notNull(t$36515$[$_get](t$36516$)) + dart.notNull(offset.dy));
      }
      let otherPath = T$9.CkPath()[_as](path);
      _engine['SkPathExtension|addPath'](this.skiaObject, otherPath.skiaObject, skMatrix[$_get](0), skMatrix[$_get](1), skMatrix[$_get](2), skMatrix[$_get](3), skMatrix[$_get](4), skMatrix[$_get](5), skMatrix[$_get](6), skMatrix[$_get](7), skMatrix[$_get](8), true);
    }
    getBounds() {
      return _engine.fromSkRect(_engine['SkPathExtension|getBounds'](this.skiaObject));
    }
    lineTo(x, y) {
      if (x == null) dart.nullFailed(I[253], 200, 22, "x");
      if (y == null) dart.nullFailed(I[253], 200, 32, "y");
      _engine['SkPathExtension|lineTo'](this.skiaObject, x, y);
    }
    moveTo(x, y) {
      if (x == null) dart.nullFailed(I[253], 205, 22, "x");
      if (y == null) dart.nullFailed(I[253], 205, 32, "y");
      _engine['SkPathExtension|moveTo'](this.skiaObject, x, y);
    }
    quadraticBezierTo(x1, y1, x2, y2) {
      if (x1 == null) dart.nullFailed(I[253], 210, 33, "x1");
      if (y1 == null) dart.nullFailed(I[253], 210, 44, "y1");
      if (x2 == null) dart.nullFailed(I[253], 210, 55, "x2");
      if (y2 == null) dart.nullFailed(I[253], 210, 66, "y2");
      _engine['SkPathExtension|quadTo'](this.skiaObject, x1, y1, x2, y2);
    }
    relativeArcToPoint(arcEndDelta, opts) {
      if (arcEndDelta == null) dart.nullFailed(I[253], 215, 37, "arcEndDelta");
      let radius = opts && 'radius' in opts ? opts.radius : C[528] || CT.C528;
      if (radius == null) dart.nullFailed(I[253], 216, 18, "radius");
      let rotation = opts && 'rotation' in opts ? opts.rotation : 0;
      if (rotation == null) dart.nullFailed(I[253], 217, 14, "rotation");
      let largeArc = opts && 'largeArc' in opts ? opts.largeArc : false;
      if (largeArc == null) dart.nullFailed(I[253], 218, 12, "largeArc");
      let clockwise = opts && 'clockwise' in opts ? opts.clockwise : true;
      if (clockwise == null) dart.nullFailed(I[253], 219, 12, "clockwise");
      _engine['SkPathExtension|rArcTo'](this.skiaObject, radius.x, radius.y, rotation, !dart.test(largeArc), !dart.test(clockwise), arcEndDelta.dx, arcEndDelta.dy);
    }
    relativeConicTo(x1, y1, x2, y2, w) {
      if (x1 == null) dart.nullFailed(I[253], 232, 31, "x1");
      if (y1 == null) dart.nullFailed(I[253], 232, 42, "y1");
      if (x2 == null) dart.nullFailed(I[253], 232, 53, "x2");
      if (y2 == null) dart.nullFailed(I[253], 232, 64, "y2");
      if (w == null) dart.nullFailed(I[253], 232, 75, "w");
      _engine['SkPathExtension|rConicTo'](this.skiaObject, x1, y1, x2, y2, w);
    }
    relativeCubicTo(x1, y1, x2, y2, x3, y3) {
      if (x1 == null) dart.nullFailed(I[253], 238, 14, "x1");
      if (y1 == null) dart.nullFailed(I[253], 238, 25, "y1");
      if (x2 == null) dart.nullFailed(I[253], 238, 36, "x2");
      if (y2 == null) dart.nullFailed(I[253], 238, 47, "y2");
      if (x3 == null) dart.nullFailed(I[253], 238, 58, "x3");
      if (y3 == null) dart.nullFailed(I[253], 238, 69, "y3");
      _engine['SkPathExtension|rCubicTo'](this.skiaObject, x1, y1, x2, y2, x3, y3);
    }
    relativeLineTo(dx, dy) {
      if (dx == null) dart.nullFailed(I[253], 243, 30, "dx");
      if (dy == null) dart.nullFailed(I[253], 243, 41, "dy");
      _engine['SkPathExtension|rLineTo'](this.skiaObject, dx, dy);
    }
    relativeMoveTo(dx, dy) {
      if (dx == null) dart.nullFailed(I[253], 248, 30, "dx");
      if (dy == null) dart.nullFailed(I[253], 248, 41, "dy");
      _engine['SkPathExtension|rMoveTo'](this.skiaObject, dx, dy);
    }
    relativeQuadraticBezierTo(x1, y1, x2, y2) {
      if (x1 == null) dart.nullFailed(I[253], 253, 41, "x1");
      if (y1 == null) dart.nullFailed(I[253], 253, 52, "y1");
      if (x2 == null) dart.nullFailed(I[253], 253, 63, "x2");
      if (y2 == null) dart.nullFailed(I[253], 253, 74, "y2");
      _engine['SkPathExtension|rQuadTo'](this.skiaObject, x1, y1, x2, y2);
    }
    reset() {
      this[_fillType$] = ui.PathFillType.nonZero;
      this.skiaObject.reset();
    }
    shift(offset) {
      if (offset == null) dart.nullFailed(I[253], 266, 26, "offset");
      let shiftedPath = T$10.SkPath()[_as](this.skiaObject.copy());
      _engine['SkPathExtension|transform'](shiftedPath, 1.0, 0.0, offset.dx, 0.0, 1.0, offset.dy, 0.0, 0.0, 1.0);
      return _engine.CkPath.fromSkPath(shiftedPath, this[_fillType$]);
    }
    static combine(operation, uiPath1, uiPath2) {
      if (operation == null) dart.nullFailed(I[253], 279, 22, "operation");
      if (uiPath1 == null) dart.nullFailed(I[253], 280, 13, "uiPath1");
      if (uiPath2 == null) dart.nullFailed(I[253], 281, 13, "uiPath2");
      let path1 = T$9.CkPath()[_as](uiPath1);
      let path2 = T$9.CkPath()[_as](uiPath2);
      let newPath = T$10.SkPath()[_as](js_util.getProperty(T$10.SkPathNamespace(), _engine.canvasKit, "Path").MakeFromOp(path1.skiaObject, path2.skiaObject, _engine.toSkPathOp(operation)));
      return _engine.CkPath.fromSkPath(newPath, path1[_fillType$]);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[253], 294, 33, "matrix4");
      let newPath = T$10.SkPath()[_as](this.skiaObject.copy());
      let m = _engine.toSkMatrixFromFloat64(matrix4);
      _engine['SkPathExtension|transform'](newPath, m[$_get](0), m[$_get](1), m[$_get](2), m[$_get](3), m[$_get](4), m[$_get](5), m[$_get](6), m[$_get](7), m[$_get](8));
      return _engine.CkPath.fromSkPath(newPath, this[_fillType$]);
    }
    toSvgString() {
      return _engine['SkPathExtension|toSVGString'](this.skiaObject);
    }
    get isEmpty() {
      return _engine['SkPathExtension|isEmpty'](this.skiaObject);
    }
  };
  (_engine.CkPath.__ = function(nativeObject, _fillType) {
    if (nativeObject == null) dart.nullFailed(I[253], 30, 19, "nativeObject");
    if (_fillType == null) dart.nullFailed(I[253], 30, 38, "_fillType");
    this[__CkPath__ref] = null;
    this[__CkPath__ref_isSet] = false;
    this[_fillType$] = _fillType;
    this[_ref] = new (G$.UniqueRefOfSkPath()).new(this, nativeObject, "Path");
  }).prototype = _engine.CkPath.prototype;
  dart.addRtiResources(_engine.CkPath, ["_engine|CkPath", "ui|Path"]);
  dart.setMethodSignature(_engine.CkPath, () => dart.global.Object.setPrototypeOf({
    addArc: T$10.RectAnddoubleAnddoubleTovoid(),
    addOval: T$9.RectTovoid(),
    addPath: T$10.PathAndOffset__Tovoid(),
    addPolygon: T$10.ListOfOffsetAndboolTovoid(),
    addRRect: T$9.RRectTovoid(),
    addRect: T$9.RectTovoid(),
    arcTo: T$10.RectAnddoubleAnddouble__Tovoid$2(),
    arcToPoint: T$10.Offset__Tovoid(),
    close: T$.VoidTovoid(),
    computeMetrics: T$10.__ToPathMetrics(),
    conicTo: T$10.doubleAnddoubleAnddouble__Tovoid$1(),
    contains: T$8.OffsetTobool(),
    cubicTo: T$10.doubleAnddoubleAnddouble__Tovoid$2(),
    extendWithPath: T$10.PathAndOffset__Tovoid(),
    getBounds: T$9.VoidToRect$1(),
    lineTo: T$9.doubleAnddoubleTovoid(),
    moveTo: T$9.doubleAnddoubleTovoid(),
    quadraticBezierTo: T$10.doubleAnddoubleAnddouble__Tovoid$3(),
    relativeArcToPoint: T$10.Offset__Tovoid(),
    relativeConicTo: T$10.doubleAnddoubleAnddouble__Tovoid$1(),
    relativeCubicTo: T$10.doubleAnddoubleAnddouble__Tovoid$2(),
    relativeLineTo: T$9.doubleAnddoubleTovoid(),
    relativeMoveTo: T$9.doubleAnddoubleTovoid(),
    relativeQuadraticBezierTo: T$10.doubleAnddoubleAnddouble__Tovoid$3(),
    reset: T$.VoidTovoid(),
    shift: T$10.OffsetToCkPath(),
    transform: T$10.Float64ListToPath(),
    toSvgString: T$8.VoidToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkPath))));
  dart.setStaticMethodSignature(_engine.CkPath, () => ['new', 'from', 'fromSkPath', 'combine']);
  dart.setGetterSignature(_engine.CkPath, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkPath(),
    skiaObject: T$10.SkPath(),
    fillType: T$8.PathFillType(),
    isEmpty: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkPath))));
  dart.setSetterSignature(_engine.CkPath, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkPath(),
    fillType: T$8.PathFillType()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkPath))));
  dart.setLibraryUri(_engine.CkPath, I[220]);
  dart.setFieldSignature(_engine.CkPath, () => dart.global.Object.setPrototypeOf({
    [__CkPath__ref]: {type: T$10.UniqueRefNOfSkPath(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkPath__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_fillType$]: {type: T$8.PathFillType(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkPath))));
  var __CkPathMetrics_iterator = dart.privateName(_engine, "_#CkPathMetrics#iterator");
  var __CkPathMetrics_iterator_isSet = dart.privateName(_engine, "_#CkPathMetrics#iterator#isSet");
  var _path$3 = dart.privateName(_engine, "_path");
  var _forceClosed$ = dart.privateName(_engine, "_forceClosed");
  _engine.CkPathMetrics = class CkPathMetrics extends G$.IterableOfPathMetric() {
    static ['_#new#tearOff'](_path, _forceClosed) {
      if (_path == null) dart.nullFailed(I[254], 10, 22, "_path");
      if (_forceClosed == null) dart.nullFailed(I[254], 10, 34, "_forceClosed");
      return new _engine.CkPathMetrics.new(_path, _forceClosed);
    }
    get iterator() {
      let t$36516;
      if (!dart.test(this[__CkPathMetrics_iterator_isSet])) {
        let t$36515 = dart.test(this[_path$3].isEmpty) ? C[837] || CT.C837 : new _engine.CkContourMeasureIter.new(this);
        if (dart.test(this[__CkPathMetrics_iterator_isSet])) dart.throw(new _internal.LateError.fieldADI("iterator"));
        this[__CkPathMetrics_iterator] = t$36515;
        this[__CkPathMetrics_iterator_isSet] = true;
      }
      t$36516 = this[__CkPathMetrics_iterator];
      return t$36516;
    }
  };
  (_engine.CkPathMetrics.new = function(_path, _forceClosed) {
    if (_path == null) dart.nullFailed(I[254], 10, 22, "_path");
    if (_forceClosed == null) dart.nullFailed(I[254], 10, 34, "_forceClosed");
    this[__CkPathMetrics_iterator] = null;
    this[__CkPathMetrics_iterator_isSet] = false;
    this[_path$3] = _path;
    this[_forceClosed$] = _forceClosed;
    this.$ti = this.$ti || T$10.CkPathMetrics();
    dart.global.Object.getPrototypeOf(_engine.CkPathMetrics).new.call(this);
    ;
  }).prototype = _engine.CkPathMetrics.prototype;
  dart.addRtiResources(_engine.CkPathMetrics, ["_engine|CkPathMetrics", "ui|PathMetrics", "core|Iterable"]);
  dart.setGetterSignature(_engine.CkPathMetrics, () => dart.global.Object.setPrototypeOf({
    iterator: T$10.IteratorOfPathMetric(),
    [$iterator]: T$10.IteratorOfPathMetric()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkPathMetrics))));
  dart.setLibraryUri(_engine.CkPathMetrics, I[220]);
  dart.setFieldSignature(_engine.CkPathMetrics, () => dart.global.Object.setPrototypeOf({
    [_path$3]: {type: T$9.CkPath(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_forceClosed$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [__CkPathMetrics_iterator]: {type: T$10.IteratorNOfPathMetric(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CkPathMetrics_iterator_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkPathMetrics))));
  dart.defineExtensionAccessors(_engine.CkPathMetrics, ['iterator']);
  var __CkContourMeasureIter__ref = dart.privateName(_engine, "_#CkContourMeasureIter#_ref");
  var __CkContourMeasureIter__ref_isSet = dart.privateName(_engine, "_#CkContourMeasureIter#_ref#isSet");
  var _contourIndexCounter = dart.privateName(_engine, "_contourIndexCounter");
  var _current$3 = dart.privateName(_engine, "_current");
  var _metrics$ = dart.privateName(_engine, "_metrics");
  _engine.CkContourMeasureIter = class CkContourMeasureIter extends core.Object {
    static ['_#new#tearOff'](_metrics) {
      if (_metrics == null) dart.nullFailed(I[254], 23, 29, "_metrics");
      return new _engine.CkContourMeasureIter.new(_metrics);
    }
    get [_ref]() {
      let t$36516;
      return dart.test(this[__CkContourMeasureIter__ref_isSet]) ? (t$36516 = this[__CkContourMeasureIter__ref], t$36516) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[254], 32, 46, "_ref#param");
      if (dart.test(this[__CkContourMeasureIter__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkContourMeasureIter__ref_isSet] = true;
        this[__CkContourMeasureIter__ref] = _ref$35param;
      }
    }
    get skiaObject() {
      return this[_ref].nativeObject;
    }
    get current() {
      let currentMetric = this[_current$3];
      if (currentMetric == null) {
        dart.throw(new core.RangeError.new("PathMetricIterator is not pointing to a PathMetric. This can happen in two situations:\n- The iteration has not started yet. If so, call \"moveNext\" to start iteration.\n- The iterator ran out of elements. If so, check that \"moveNext\" returns true prior to calling \"current\"."));
      }
      return currentMetric;
    }
    moveNext() {
      let skContourMeasure = T$10.SkContourMeasureN()[_as](this.skiaObject.next());
      if (skContourMeasure == null) {
        this[_current$3] = null;
        return false;
      }
      this[_current$3] = new _engine.CkContourMeasure.new(this[_metrics$], skContourMeasure, this[_contourIndexCounter]);
      this[_contourIndexCounter] = dart.notNull(this[_contourIndexCounter]) + 1;
      return true;
    }
  };
  (_engine.CkContourMeasureIter.new = function(_metrics) {
    if (_metrics == null) dart.nullFailed(I[254], 23, 29, "_metrics");
    this[__CkContourMeasureIter__ref] = null;
    this[__CkContourMeasureIter__ref_isSet] = false;
    this[_contourIndexCounter] = 0;
    this[_current$3] = null;
    this[_metrics$] = _metrics;
    this[_ref] = new (G$.UniqueRefOfSkContourMeasureIter()).new(this, _engine.SkContourMeasureIter.new(this[_metrics$][_path$3].skiaObject, this[_metrics$][_forceClosed$], 1.0), "Iterator<PathMetric>");
  }).prototype = _engine.CkContourMeasureIter.prototype;
  dart.addRtiResources(_engine.CkContourMeasureIter, ["_engine|CkContourMeasureIter", "core|Iterator"]);
  dart.setMethodSignature(_engine.CkContourMeasureIter, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkContourMeasureIter))));
  dart.setGetterSignature(_engine.CkContourMeasureIter, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkContourMeasureIter(),
    skiaObject: T$9.SkContourMeasureIter(),
    current: T$10.PathMetric()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkContourMeasureIter))));
  dart.setSetterSignature(_engine.CkContourMeasureIter, () => dart.global.Object.setPrototypeOf({[_ref]: T$10.UniqueRefOfSkContourMeasureIter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkContourMeasureIter))));
  dart.setLibraryUri(_engine.CkContourMeasureIter, I[220]);
  dart.setFieldSignature(_engine.CkContourMeasureIter, () => dart.global.Object.setPrototypeOf({
    [_metrics$]: {type: T$10.CkPathMetrics(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__CkContourMeasureIter__ref]: {type: T$10.UniqueRefNOfSkContourMeasureIter(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkContourMeasureIter__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_contourIndexCounter]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_current$3]: {type: T$10.CkContourMeasureN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkContourMeasureIter))));
  var contourIndex$ = dart.privateName(_engine, "CkContourMeasure.contourIndex");
  var __CkContourMeasure__ref = dart.privateName(_engine, "_#CkContourMeasure#_ref");
  var __CkContourMeasure__ref_isSet = dart.privateName(_engine, "_#CkContourMeasure#_ref#isSet");
  _engine.CkContourMeasure = class CkContourMeasure extends core.Object {
    get contourIndex() {
      return this[contourIndex$];
    }
    set contourIndex(value) {
      super.contourIndex = value;
    }
    static ['_#new#tearOff'](_metrics, skiaObject, contourIndex) {
      if (_metrics == null) dart.nullFailed(I[254], 71, 25, "_metrics");
      if (skiaObject == null) dart.nullFailed(I[254], 71, 52, "skiaObject");
      if (contourIndex == null) dart.nullFailed(I[254], 71, 69, "contourIndex");
      return new _engine.CkContourMeasure.new(_metrics, skiaObject, contourIndex);
    }
    get [_ref]() {
      let t$36516;
      return dart.test(this[__CkContourMeasure__ref_isSet]) ? (t$36516 = this[__CkContourMeasure__ref], t$36516) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[254], 80, 42, "_ref#param");
      if (dart.test(this[__CkContourMeasure__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkContourMeasure__ref_isSet] = true;
        this[__CkContourMeasure__ref] = _ref$35param;
      }
    }
    get skiaObject() {
      return this[_ref].nativeObject;
    }
    extractPath(start, end, opts) {
      if (start == null) dart.nullFailed(I[254], 88, 30, "start");
      if (end == null) dart.nullFailed(I[254], 88, 44, "end");
      let startWithMoveTo = opts && 'startWithMoveTo' in opts ? opts.startWithMoveTo : true;
      if (startWithMoveTo == null) dart.nullFailed(I[254], 88, 55, "startWithMoveTo");
      let skPath = _engine['SkContourMeasureExtension|getSegment'](this.skiaObject, start, end, startWithMoveTo);
      return _engine.CkPath.fromSkPath(skPath, this[_metrics$][_path$3].fillType);
    }
    getTangentForOffset(distance) {
      if (distance == null) dart.nullFailed(I[254], 94, 41, "distance");
      let posTan = _engine['SkContourMeasureExtension|getPosTan'](this.skiaObject, distance);
      return new ui.Tangent.new(new ui.Offset.new(posTan[$_get](0), posTan[$_get](1)), new ui.Offset.new(posTan[$_get](2), posTan[$_get](3)));
    }
    get isClosed() {
      return _engine['SkContourMeasureExtension|isClosed'](this.skiaObject);
    }
    get length() {
      return _engine['SkContourMeasureExtension|length'](this.skiaObject);
    }
  };
  (_engine.CkContourMeasure.new = function(_metrics, skiaObject, contourIndex) {
    if (_metrics == null) dart.nullFailed(I[254], 71, 25, "_metrics");
    if (skiaObject == null) dart.nullFailed(I[254], 71, 52, "skiaObject");
    if (contourIndex == null) dart.nullFailed(I[254], 71, 69, "contourIndex");
    this[__CkContourMeasure__ref] = null;
    this[__CkContourMeasure__ref_isSet] = false;
    this[_metrics$] = _metrics;
    this[contourIndex$] = contourIndex;
    this[_ref] = new (G$.UniqueRefOfSkContourMeasure()).new(this, skiaObject, "PathMetric");
  }).prototype = _engine.CkContourMeasure.prototype;
  dart.addRtiResources(_engine.CkContourMeasure, ["_engine|CkContourMeasure", "ui|PathMetric"]);
  dart.setMethodSignature(_engine.CkContourMeasure, () => dart.global.Object.setPrototypeOf({
    extractPath: T$10.doubleAnddouble__ToPath(),
    getTangentForOffset: T$10.doubleToTangent()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkContourMeasure))));
  dart.setGetterSignature(_engine.CkContourMeasure, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkContourMeasure(),
    skiaObject: T$10.SkContourMeasure(),
    isClosed: T$.bool(),
    length: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkContourMeasure))));
  dart.setSetterSignature(_engine.CkContourMeasure, () => dart.global.Object.setPrototypeOf({[_ref]: T$10.UniqueRefOfSkContourMeasure()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkContourMeasure))));
  dart.setLibraryUri(_engine.CkContourMeasure, I[220]);
  dart.setFieldSignature(_engine.CkContourMeasure, () => dart.global.Object.setPrototypeOf({
    [_metrics$]: {type: T$10.CkPathMetrics(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__CkContourMeasure__ref]: {type: T$10.UniqueRefNOfSkContourMeasure(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkContourMeasure__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    contourIndex: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkContourMeasure))));
  _engine.CkPathMetricIteratorEmpty = class CkPathMetricIteratorEmpty extends core.Object {
    static ['_#_#tearOff']() {
      return new _engine.CkPathMetricIteratorEmpty.__();
    }
    get current() {
      dart.throw(new core.RangeError.new("PathMetric iterator is empty."));
    }
    moveNext() {
      return false;
    }
  };
  (_engine.CkPathMetricIteratorEmpty.__ = function() {
    ;
  }).prototype = _engine.CkPathMetricIteratorEmpty.prototype;
  dart.addRtiResources(_engine.CkPathMetricIteratorEmpty, ["_engine|CkPathMetricIteratorEmpty", "core|Iterator"]);
  dart.setMethodSignature(_engine.CkPathMetricIteratorEmpty, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkPathMetricIteratorEmpty))));
  dart.setGetterSignature(_engine.CkPathMetricIteratorEmpty, () => dart.global.Object.setPrototypeOf({current: T$10.PathMetric()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkPathMetricIteratorEmpty))));
  dart.setLibraryUri(_engine.CkPathMetricIteratorEmpty, I[220]);
  var __CkPicture__ref = dart.privateName(_engine, "_#CkPicture#_ref");
  var __CkPicture__ref_isSet = dart.privateName(_engine, "_#CkPicture#_ref#isSet");
  var _debugDisposalStackTrace = dart.privateName(_engine, "_debugDisposalStackTrace");
  _engine.CkPicture = class CkPicture extends core.Object {
    static ['_#new#tearOff'](skPicture) {
      if (skPicture == null) dart.nullFailed(I[255], 11, 23, "skPicture");
      return new _engine.CkPicture.new(skPicture);
    }
    get [_ref]() {
      let t$36516;
      return dart.test(this[__CkPicture__ref_isSet]) ? (t$36516 = this[__CkPicture__ref], t$36516) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[255], 15, 35, "_ref#param");
      if (dart.test(this[__CkPicture__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkPicture__ref_isSet] = true;
        this[__CkPicture__ref] = _ref$35param;
      }
    }
    get skiaObject() {
      return this[_ref].nativeObject;
    }
    get cullRect() {
      return _engine.fromSkRect(_engine['SkPictureExtension|cullRect'](this.skiaObject));
    }
    get approximateBytesUsed() {
      return _engine['SkPictureExtension|approximateBytesUsed'](this.skiaObject);
    }
    get debugDisposed() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_isDisposed];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[255], 28, 12, "() {\n      result = _isDisposed;\n      return true;\n    }()");
      if (result != null) {
        return dart.nullCheck(result);
      }
      dart.throw(new core.StateError.new("Picture.debugDisposed is only available when asserts are enabled."));
    }
    debugCheckNotDisposed(mainErrorMessage) {
      if (mainErrorMessage == null) dart.nullFailed(I[255], 61, 37, "mainErrorMessage");
      if (dart.test(this[_isDisposed])) {
        dart.throw(new core.StateError.new(dart.str(mainErrorMessage) + "\n" + "The picture has been disposed. When the picture was disposed the " + "stack trace was:\n" + dart.str(this[_debugDisposalStackTrace])));
      }
      return true;
    }
    dispose() {
      let t$36516;
      if (!dart.test(this.debugCheckNotDisposed("Cannot dispose picture."))) dart.assertFailed(null, I[255], 75, 12, "debugCheckNotDisposed('Cannot dispose picture.')");
      if (!dart.test(dart.fn(() => {
        this[_debugDisposalStackTrace] = core.StackTrace.current;
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[255], 76, 12, "() {\n      _debugDisposalStackTrace = StackTrace.current;\n      return true;\n    }()");
      t$36516 = ui.Picture.onDispose;
      t$36516 == null ? null : t$36516(this);
      this[_isDisposed] = true;
      this[_ref].dispose();
    }
    toImage(width, height) {
      if (width == null) dart.nullFailed(I[255], 86, 32, "width");
      if (height == null) dart.nullFailed(I[255], 86, 43, "height");
      return async.async(T$10.Image(), (function* toImage() {
        return this.toImageSync(width, height);
      }).bind(this));
    }
    toImageSync(width, height) {
      if (width == null) dart.nullFailed(I[255], 91, 27, "width");
      if (height == null) dart.nullFailed(I[255], 91, 38, "height");
      if (!dart.test(this.debugCheckNotDisposed("Cannot convert picture to image."))) dart.assertFailed(null, I[255], 92, 12, "debugCheckNotDisposed('Cannot convert picture to image.')");
      let surface = _engine.CanvasKitRenderer.instance.pictureToImageSurface;
      let ckSurface = surface.createOrUpdateSurface(new _engine.BitmapSize.new(width, height));
      let ckCanvas = ckSurface.getCanvas();
      ckCanvas.clear(C[835] || CT.C835);
      ckCanvas.drawPicture(this);
      let skImage = T$9.SkImage()[_as](ckSurface.surface.makeImageSnapshot());
      let imageInfo = _engine.SkImageInfo.new({alphaType: js_util.getProperty(T$9.SkAlphaType(), js_util.getProperty(T$9.SkAlphaTypeEnum(), _engine.canvasKit, "AlphaType"), "Premul"), colorType: js_util.getProperty(T$9.SkColorType(), js_util.getProperty(T$9.SkColorTypeEnum(), _engine.canvasKit, "ColorType"), "RGBA_8888"), colorSpace: dart.jsInteropNullCheck(dart.global.window.flutterCanvasKit.ColorSpace.SRGB), width: width[$toDouble](), height: height[$toDouble]()});
      let pixels = _engine['SkImageExtension|readPixels'](skImage, 0.0, 0.0, imageInfo);
      let rasterImage = _engine['CanvasKitExtension|MakeImage'](_engine.canvasKit, imageInfo, pixels, (4 * dart.notNull(width))[$toDouble]());
      if (rasterImage == null) {
        dart.throw(new core.StateError.new("Unable to convert image pixels into SkImage."));
      }
      return new _engine.CkImage.new(rasterImage);
    }
  };
  (_engine.CkPicture.new = function(skPicture) {
    if (skPicture == null) dart.nullFailed(I[255], 11, 23, "skPicture");
    this[__CkPicture__ref] = null;
    this[__CkPicture__ref_isSet] = false;
    this[_isDisposed] = false;
    this[_debugDisposalStackTrace] = null;
    this[_ref] = new (G$.UniqueRefOfSkPicture()).new(this, skPicture, "Picture");
  }).prototype = _engine.CkPicture.prototype;
  dart.addRtiResources(_engine.CkPicture, ["_engine|CkPicture", "_engine|ScenePicture", "ui|Picture"]);
  dart.setMethodSignature(_engine.CkPicture, () => dart.global.Object.setPrototypeOf({
    debugCheckNotDisposed: T$.StringTobool(),
    dispose: T$.VoidTovoid(),
    toImage: T$10.intAndintToFutureOfImage(),
    toImageSync: T$10.intAndintToCkImage()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkPicture))));
  dart.setGetterSignature(_engine.CkPicture, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkPicture(),
    skiaObject: T$10.SkPicture(),
    cullRect: T$8.Rect(),
    approximateBytesUsed: T$.int(),
    debugDisposed: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkPicture))));
  dart.setSetterSignature(_engine.CkPicture, () => dart.global.Object.setPrototypeOf({[_ref]: T$10.UniqueRefOfSkPicture()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkPicture))));
  dart.setLibraryUri(_engine.CkPicture, I[220]);
  dart.setFieldSignature(_engine.CkPicture, () => dart.global.Object.setPrototypeOf({
    [__CkPicture__ref]: {type: T$10.UniqueRefNOfSkPicture(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkPicture__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isDisposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_debugDisposalStackTrace]: {type: T$.StackTraceN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkPicture))));
  var _skRecorder = dart.privateName(_engine, "_skRecorder");
  var _recordingCanvas = dart.privateName(_engine, "_recordingCanvas");
  _engine.CkPictureRecorder = class CkPictureRecorder extends core.Object {
    beginRecording(bounds) {
      if (bounds == null) dart.nullFailed(I[256], 13, 35, "bounds");
      let recorder = this[_skRecorder] = T$10.SkPictureRecorder()[_as](new dart.global.window.flutterCanvasKit.PictureRecorder());
      let skRect = _engine.toSkRect(bounds);
      let skCanvas = _engine['SkPictureRecorderExtension|beginRecording'](recorder, skRect);
      return this[_recordingCanvas] = new _engine.CkCanvas.new(skCanvas);
    }
    get recordingCanvas() {
      return this[_recordingCanvas];
    }
    endRecording() {
      let t$36516;
      let recorder = this[_skRecorder];
      if (recorder == null) {
        dart.throw(new core.StateError.new("PictureRecorder is not recording"));
      }
      let skPicture = T$10.SkPicture()[_as](recorder.finishRecordingAsPicture());
      recorder.delete();
      this[_skRecorder] = null;
      let result = new _engine.CkPicture.new(skPicture);
      t$36516 = ui.Picture.onCreate;
      t$36516 == null ? null : t$36516(result);
      return result;
    }
    get isRecording() {
      return this[_skRecorder] != null;
    }
    static ['_#new#tearOff']() {
      return new _engine.CkPictureRecorder.new();
    }
  };
  (_engine.CkPictureRecorder.new = function() {
    this[_skRecorder] = null;
    this[_recordingCanvas] = null;
    ;
  }).prototype = _engine.CkPictureRecorder.prototype;
  dart.addRtiResources(_engine.CkPictureRecorder, ["_engine|CkPictureRecorder", "ui|PictureRecorder"]);
  dart.setMethodSignature(_engine.CkPictureRecorder, () => dart.global.Object.setPrototypeOf({
    beginRecording: T$10.RectToCkCanvas(),
    endRecording: T$10.VoidToCkPicture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkPictureRecorder))));
  dart.setGetterSignature(_engine.CkPictureRecorder, () => dart.global.Object.setPrototypeOf({
    recordingCanvas: T$9.CkCanvasN(),
    isRecording: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkPictureRecorder))));
  dart.setLibraryUri(_engine.CkPictureRecorder, I[220]);
  dart.setFieldSignature(_engine.CkPictureRecorder, () => dart.global.Object.setPrototypeOf({
    [_skRecorder]: {type: T$10.SkPictureRecorderN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_recordingCanvas]: {type: T$9.CkCanvasN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkPictureRecorder))));
  _engine.RasterCache = class RasterCache extends core.Object {
    prepare(picture, matrix, isComplex, willChange) {
      if (picture == null) dart.nullFailed(I[257], 37, 18, "picture");
      if (matrix == null) dart.nullFailed(I[257], 37, 35, "matrix");
      if (isComplex == null) dart.nullFailed(I[257], 37, 48, "isComplex");
      if (willChange == null) dart.nullFailed(I[257], 37, 64, "willChange");
    }
    get(picture, matrix) {
      if (picture == null) dart.nullFailed(I[257], 40, 36, "picture");
      if (matrix == null) dart.nullFailed(I[257], 40, 53, "matrix");
      return new _engine.RasterCacheResult.new();
    }
    static ['_#new#tearOff']() {
      return new _engine.RasterCache.new();
    }
  };
  (_engine.RasterCache.new = function() {
    ;
  }).prototype = _engine.RasterCache.prototype;
  dart.addRtiResources(_engine.RasterCache, ["_engine|RasterCache"]);
  dart.setMethodSignature(_engine.RasterCache, () => dart.global.Object.setPrototypeOf({
    prepare: T$10.PictureAndMatrix4Andbool__Tovoid(),
    get: T$10.PictureAndMatrix4ToRasterCacheResult()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RasterCache))));
  dart.setLibraryUri(_engine.RasterCache, I[220]);
  _engine.RasterCacheResult = class RasterCacheResult extends core.Object {
    get isValid() {
      return false;
    }
    draw(canvas) {
      if (canvas == null) dart.nullFailed(I[257], 51, 22, "canvas");
    }
    static ['_#new#tearOff']() {
      return new _engine.RasterCacheResult.new();
    }
  };
  (_engine.RasterCacheResult.new = function() {
    ;
  }).prototype = _engine.RasterCacheResult.prototype;
  dart.addRtiResources(_engine.RasterCacheResult, ["_engine|RasterCacheResult"]);
  dart.setMethodSignature(_engine.RasterCacheResult, () => dart.global.Object.setPrototypeOf({draw: T$10.CkCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RasterCacheResult))));
  dart.setGetterSignature(_engine.RasterCacheResult, () => dart.global.Object.setPrototypeOf({isValid: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.RasterCacheResult))));
  dart.setLibraryUri(_engine.RasterCacheResult, I[220]);
  _engine.DisplayCanvas = class DisplayCanvas extends core.Object {};
  (_engine.DisplayCanvas.new = function() {
    ;
  }).prototype = _engine.DisplayCanvas.prototype;
  dart.addRtiResources(_engine.DisplayCanvas, ["_engine|DisplayCanvas"]);
  dart.setLibraryUri(_engine.DisplayCanvas, I[220]);
  var current = dart.privateName(_engine, "RenderQueue.current");
  var next = dart.privateName(_engine, "RenderQueue.next");
  _engine.RenderQueue = class RenderQueue extends core.Object {
    get current() {
      return this[current];
    }
    set current(value) {
      this[current] = value;
    }
    get next() {
      return this[next];
    }
    set next(value) {
      this[next] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.RenderQueue.new();
    }
  };
  (_engine.RenderQueue.new = function() {
    this[current] = null;
    this[next] = null;
    ;
  }).prototype = _engine.RenderQueue.prototype;
  dart.addRtiResources(_engine.RenderQueue, ["_engine|RenderQueue"]);
  dart.setLibraryUri(_engine.RenderQueue, I[220]);
  dart.setFieldSignature(_engine.RenderQueue, () => dart.global.Object.setPrototypeOf({
    current: {type: T$10.RecNOf__(), isConst: false, isFinal: false},
    next: {type: T$10.RecNOf__(), isConst: false, isFinal: false}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RenderQueue))));
  var hostElement = dart.privateName(_engine, "RenderCanvas.hostElement");
  var canvasElement = dart.privateName(_engine, "RenderCanvas.canvasElement");
  var _pixelWidth = dart.privateName(_engine, "_pixelWidth");
  var _pixelHeight = dart.privateName(_engine, "_pixelHeight");
  var __RenderCanvas_renderContext = dart.privateName(_engine, "_#RenderCanvas#renderContext");
  var __RenderCanvas_renderContext_isSet = dart.privateName(_engine, "_#RenderCanvas#renderContext#isSet");
  var __RenderCanvas_renderContext2d = dart.privateName(_engine, "_#RenderCanvas#renderContext2d");
  var __RenderCanvas_renderContext2d_isSet = dart.privateName(_engine, "_#RenderCanvas#renderContext2d#isSet");
  var _currentDevicePixelRatio = dart.privateName(_engine, "_currentDevicePixelRatio");
  var _updateLogicalHtmlCanvasSize = dart.privateName(_engine, "_updateLogicalHtmlCanvasSize");
  var _ensureSize = dart.privateName(_engine, "_ensureSize");
  _engine.RenderCanvas = class RenderCanvas extends _engine.DisplayCanvas {
    get hostElement() {
      return this[hostElement];
    }
    set hostElement(value) {
      super.hostElement = value;
    }
    get canvasElement() {
      return this[canvasElement];
    }
    set canvasElement(value) {
      super.canvasElement = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.RenderCanvas.new();
    }
    get renderContext() {
      let t$36517;
      if (!dart.test(this[__RenderCanvas_renderContext_isSet])) {
        let t$36516 = _engine['DomCanvasElementExtension|get#contextBitmapRenderer'](this.canvasElement);
        if (dart.test(this[__RenderCanvas_renderContext_isSet])) dart.throw(new _internal.LateError.fieldADI("renderContext"));
        this[__RenderCanvas_renderContext] = t$36516;
        this[__RenderCanvas_renderContext_isSet] = true;
      }
      t$36517 = this[__RenderCanvas_renderContext];
      return t$36517;
    }
    get renderContext2d() {
      let t$36518;
      if (!dart.test(this[__RenderCanvas_renderContext2d_isSet])) {
        let t$36517 = _engine['DomCanvasElementExtension|get#context2D'](this.canvasElement);
        if (dart.test(this[__RenderCanvas_renderContext2d_isSet])) dart.throw(new _internal.LateError.fieldADI("renderContext2d"));
        this[__RenderCanvas_renderContext2d] = t$36517;
        this[__RenderCanvas_renderContext2d_isSet] = true;
      }
      t$36518 = this[__RenderCanvas_renderContext2d];
      return t$36518;
    }
    [_updateLogicalHtmlCanvasSize]() {
      let devicePixelRatio = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
      let logicalWidth = dart.notNull(this[_pixelWidth]) / dart.notNull(devicePixelRatio);
      let logicalHeight = dart.notNull(this[_pixelHeight]) / dart.notNull(devicePixelRatio);
      let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.canvasElement, "style");
      _engine['DomCSSStyleDeclarationExtension|set#width'](style, dart.strSafe(logicalWidth) + "px");
      _engine['DomCSSStyleDeclarationExtension|set#height'](style, dart.strSafe(logicalHeight) + "px");
      this[_currentDevicePixelRatio] = devicePixelRatio;
    }
    render(bitmap) {
      if (bitmap == null) dart.nullFailed(I[258], 75, 30, "bitmap");
      this[_ensureSize](new _engine.BitmapSize.new(js_interop['JSNumberToNumber|get#toDartInt'](js_util.getProperty(T$.double(), bitmap, "width")), js_interop['JSNumberToNumber|get#toDartInt'](js_util.getProperty(T$.double(), bitmap, "height"))));
      this.renderContext.transferFromImageBitmap(bitmap);
    }
    renderWithNoBitmapSupport(imageSource, sourceHeight, size) {
      if (imageSource == null) dart.nullFailed(I[258], 81, 26, "imageSource");
      if (sourceHeight == null) dart.nullFailed(I[258], 82, 9, "sourceHeight");
      if (size == null) dart.nullFailed(I[258], 83, 16, "size");
      this[_ensureSize](size);
      _engine['DomCanvasRenderingContext2DExtension|drawImage'](this.renderContext2d, imageSource, 0, dart.notNull(sourceHeight) - dart.notNull(size.height), size.width, size.height, 0, 0, size.width, size.height);
    }
    [_ensureSize](size) {
      if (size == null) dart.nullFailed(I[258], 100, 31, "size");
      if (size.width == this[_pixelWidth] && size.height == this[_pixelHeight]) {
        if (_engine.EngineFlutterDisplay.instance.devicePixelRatio != this[_currentDevicePixelRatio]) {
          this[_updateLogicalHtmlCanvasSize]();
        }
        return;
      }
      this[_pixelWidth] = size.width;
      this[_pixelHeight] = size.height;
      _engine['DomCanvasElementExtension|set#width'](this.canvasElement, this[_pixelWidth][$toDouble]());
      _engine['DomCanvasElementExtension|set#height'](this.canvasElement, this[_pixelHeight][$toDouble]());
      this[_updateLogicalHtmlCanvasSize]();
    }
    get isConnected() {
      return dart.nullCheck(_engine['DomCanvasElementExtension|get#isConnected'](this.canvasElement));
    }
    initialize() {
    }
    dispose() {
      this.hostElement.remove();
    }
  };
  (_engine.RenderCanvas.new = function() {
    this[hostElement] = _engine.createDomElement("flt-canvas-container");
    this[canvasElement] = _engine.createDomCanvasElement();
    this[_pixelWidth] = 0;
    this[_pixelHeight] = 0;
    this[__RenderCanvas_renderContext] = null;
    this[__RenderCanvas_renderContext_isSet] = false;
    this[__RenderCanvas_renderContext2d] = null;
    this[__RenderCanvas_renderContext2d_isSet] = false;
    this[_currentDevicePixelRatio] = -1.0;
    _engine['DomElementExtension|setAttribute'](this.canvasElement, "aria-hidden", "true");
    _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.canvasElement, "style"), "absolute");
    this[_updateLogicalHtmlCanvasSize]();
    this.hostElement.append(this.canvasElement);
  }).prototype = _engine.RenderCanvas.prototype;
  dart.addRtiResources(_engine.RenderCanvas, ["_engine|RenderCanvas"]);
  dart.setMethodSignature(_engine.RenderCanvas, () => dart.global.Object.setPrototypeOf({
    [_updateLogicalHtmlCanvasSize]: T$.VoidTovoid(),
    render: T$10.DomImageBitmapTovoid(),
    renderWithNoBitmapSupport: T$10.DomCanvasImageSourceAndintAndBitmapSizeTovoid(),
    [_ensureSize]: T$10.BitmapSizeTovoid(),
    initialize: T$.VoidTovoid(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RenderCanvas))));
  dart.setGetterSignature(_engine.RenderCanvas, () => dart.global.Object.setPrototypeOf({
    renderContext: T$10.DomCanvasRenderingContextBitmapRenderer(),
    renderContext2d: T$9.DomCanvasRenderingContext2D(),
    isConnected: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.RenderCanvas))));
  dart.setLibraryUri(_engine.RenderCanvas, I[220]);
  dart.setFieldSignature(_engine.RenderCanvas, () => dart.global.Object.setPrototypeOf({
    hostElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    canvasElement: {type: T$9.DomCanvasElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_pixelWidth]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pixelHeight]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__RenderCanvas_renderContext]: {type: T$10.DomCanvasRenderingContextBitmapRendererN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__RenderCanvas_renderContext_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__RenderCanvas_renderContext2d]: {type: T$9.DomCanvasRenderingContext2DN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__RenderCanvas_renderContext2d_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentDevicePixelRatio]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RenderCanvas))));
  _engine.CanvasKitVariant = class CanvasKitVariant extends core._Enum {
    [_enumToString]() {
      return "CanvasKitVariant." + dart.str(this[_name$]);
    }
  };
  (_engine.CanvasKitVariant.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[259], 8, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[259], 8, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.CanvasKitVariant).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.CanvasKitVariant.prototype;
  dart.addRtiResources(_engine.CanvasKitVariant, ["_engine|CanvasKitVariant"]);
  dart.setMethodSignature(_engine.CanvasKitVariant, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CanvasKitVariant))));
  dart.setLibraryUri(_engine.CanvasKitVariant, I[220]);
  dart.setStaticFieldSignature(_engine.CanvasKitVariant, () => ['values', 'auto', 'full', 'chromium']);
  dart.defineLazy(_engine.CanvasKitVariant, {
    /*_engine.CanvasKitVariant.values*/get values() {
      return C[838] || CT.C838;
    },
    /*_engine.CanvasKitVariant.auto*/get auto() {
      return C[839] || CT.C839;
    },
    /*_engine.CanvasKitVariant.full*/get full() {
      return C[840] || CT.C840;
    },
    /*_engine.CanvasKitVariant.chromium*/get chromium() {
      return C[841] || CT.C841;
    }
  }, false);
  var pictureToImageSurface = dart.privateName(_engine, "CanvasKitRenderer.pictureToImageSurface");
  var _initialized = dart.privateName(_engine, "_initialized");
  var __CanvasKitRenderer__fontCollection = dart.privateName(_engine, "_#CanvasKitRenderer#_fontCollection");
  var __CanvasKitRenderer__fontCollection_isSet = dart.privateName(_engine, "_#CanvasKitRenderer#_fontCollection#isSet");
  var _sceneHost = dart.privateName(_engine, "_sceneHost");
  var _rasterizer = dart.privateName(_engine, "_rasterizer");
  var _onViewCreatedListener = dart.privateName(_engine, "_onViewCreatedListener");
  var _onViewDisposedListener = dart.privateName(_engine, "_onViewDisposedListener");
  var _rasterizers = dart.privateName(_engine, "_rasterizers");
  var _fontCollection = dart.privateName(_engine, "_fontCollection");
  var _onViewCreated = dart.privateName(_engine, "_onViewCreated");
  var _onViewDisposed = dart.privateName(_engine, "_onViewDisposed");
  var _kickRenderLoop = dart.privateName(_engine, "_kickRenderLoop");
  var _renderScene = dart.privateName(_engine, "_renderScene");
  _engine.CanvasKitRenderer = class CanvasKitRenderer extends core.Object {
    get pictureToImageSurface() {
      return this[pictureToImageSurface];
    }
    set pictureToImageSurface(value) {
      super.pictureToImageSurface = value;
    }
    static get instance() {
      return _engine.CanvasKitRenderer._instance;
    }
    static get _instance() {
      let t$36520;
      return dart.test(_engine.CanvasKitRenderer['_#_instance#isSet']) ? (t$36520 = _engine.CanvasKitRenderer['_#_instance'], t$36520) : dart.throw(new _internal.LateError.fieldNI("_instance"));
    }
    static set _instance(_instance$35param) {
      if (_instance$35param == null) dart.nullFailed(I[259], 26, 33, "_instance#param");
      _engine.CanvasKitRenderer['_#_instance#isSet'] = true;
      _engine.CanvasKitRenderer['_#_instance'] = _instance$35param;
    }
    get rendererTag() {
      return "canvaskit";
    }
    get [_fontCollection]() {
      let t$36521;
      if (!dart.test(this[__CanvasKitRenderer__fontCollection_isSet])) {
        let t$36520 = new _engine.SkiaFontCollection.new();
        if (dart.test(this[__CanvasKitRenderer__fontCollection_isSet])) dart.throw(new _internal.LateError.fieldADI("_fontCollection"));
        this[__CanvasKitRenderer__fontCollection] = t$36520;
        this[__CanvasKitRenderer__fontCollection_isSet] = true;
      }
      t$36521 = this[__CanvasKitRenderer__fontCollection];
      return t$36521;
    }
    get fontCollection() {
      return this[_fontCollection];
    }
    get sceneHost() {
      return this[_sceneHost];
    }
    static _createRasterizer() {
      if (dart.test(_engine.isSafari) || dart.test(_engine.isFirefox)) {
        return new _engine.MultiSurfaceRasterizer.new();
      }
      return new _engine.OffscreenCanvasRasterizer.new();
    }
    debugOverrideRasterizer(testRasterizer) {
      if (testRasterizer == null) dart.nullFailed(I[259], 52, 43, "testRasterizer");
      this[_rasterizer] = testRasterizer;
    }
    set resourceCacheMaxBytes(bytes) {
      if (bytes == null) dart.nullFailed(I[259], 56, 33, "bytes");
      return this[_rasterizer].setResourceCacheMaxBytes(bytes);
    }
    initialize() {
      return async.async(T$.void(), (function* initialize() {
        this[_initialized] == null ? this[_initialized] = dart.fn(() => async.async(T$.Null(), (function*() {
          if (dart.global.window.flutterCanvasKit != null) {
            _engine.canvasKit = dart.nullCheck(dart.global.window.flutterCanvasKit);
          } else if (dart.global.window.flutterCanvasKitLoaded != null) {
            _engine.canvasKit = (yield _engine.promiseToFuture(T$10.CanvasKit(), dart.nullCheck(dart.global.window.flutterCanvasKitLoaded)));
          } else {
            _engine.canvasKit = (yield _engine.downloadCanvasKit());
            dart.global.window.flutterCanvasKit = _engine.canvasKit;
          }
          let viewManager = _engine.EnginePlatformDispatcher.instance.viewManager;
          if (this[_onViewCreatedListener] == null) {
            for (let view of viewManager.views) {
              this[_onViewCreated](view.viewId);
            }
          }
          this[_onViewCreatedListener] == null ? this[_onViewCreatedListener] = viewManager.onViewCreated.listen(dart.bind(this, _onViewCreated)) : null;
          this[_onViewDisposedListener] == null ? this[_onViewDisposedListener] = viewManager.onViewDisposed.listen(dart.bind(this, _onViewDisposed)) : null;
          _engine.CanvasKitRenderer._instance = this;
        }).bind(this)), T$0.VoidToFutureOfNull())() : null;
        return this[_initialized];
      }).bind(this));
    }
    createPaint() {
      return new _engine.CkPaint.new();
    }
    createVertices(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[259], 105, 19, "mode");
      if (positions == null) dart.nullFailed(I[259], 106, 21, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return _engine.CkVertices.new(mode, positions, {textureCoordinates: textureCoordinates, colors: colors, indices: indices});
    }
    createVerticesRaw(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[259], 118, 19, "mode");
      if (positions == null) dart.nullFailed(I[259], 119, 17, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return _engine.CkVertices.raw(mode, positions, {textureCoordinates: textureCoordinates, colors: colors, indices: indices});
    }
    createCanvas(recorder, cullRect = null) {
      if (recorder == null) dart.nullFailed(I[259], 130, 45, "recorder");
      return _engine.CanvasKitCanvas.new(recorder, cullRect);
    }
    createLinearGradient(from, to, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null) {
      if (from == null) dart.nullFailed(I[259], 135, 21, "from");
      if (to == null) dart.nullFailed(I[259], 135, 37, "to");
      if (colors == null) dart.nullFailed(I[259], 135, 56, "colors");
      if (tileMode == null) dart.nullFailed(I[259], 137, 23, "tileMode");
      return new _engine.CkGradientLinear.new(from, to, colors, colorStops, tileMode, matrix4);
    }
    createRadialGradient(center, radius, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null) {
      if (center == null) dart.nullFailed(I[259], 143, 15, "center");
      if (radius == null) dart.nullFailed(I[259], 144, 12, "radius");
      if (colors == null) dart.nullFailed(I[259], 145, 20, "colors");
      if (tileMode == null) dart.nullFailed(I[259], 147, 17, "tileMode");
      return new _engine.CkGradientRadial.new(center, radius, colors, colorStops, tileMode, matrix4);
    }
    createConicalGradient(focal, focalRadius, center, radius, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix = null) {
      if (focal == null) dart.nullFailed(I[259], 153, 47, "focal");
      if (focalRadius == null) dart.nullFailed(I[259], 153, 61, "focalRadius");
      if (center == null) dart.nullFailed(I[259], 154, 21, "center");
      if (radius == null) dart.nullFailed(I[259], 154, 36, "radius");
      if (colors == null) dart.nullFailed(I[259], 154, 59, "colors");
      if (tileMode == null) dart.nullFailed(I[259], 156, 23, "tileMode");
      return new _engine.CkGradientConical.new(focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix);
    }
    createSweepGradient(center, colors, colorStops = null, tileMode = C[586] || CT.C586, startAngle = 0, endAngle = 6.283185307179586, matrix4 = null) {
      if (center == null) dart.nullFailed(I[259], 162, 45, "center");
      if (colors == null) dart.nullFailed(I[259], 162, 68, "colors");
      if (tileMode == null) dart.nullFailed(I[259], 164, 23, "tileMode");
      if (startAngle == null) dart.nullFailed(I[259], 165, 18, "startAngle");
      if (endAngle == null) dart.nullFailed(I[259], 166, 18, "endAngle");
      return new _engine.CkGradientSweep.new(center, colors, colorStops, tileMode, startAngle, endAngle, matrix4);
    }
    createPictureRecorder() {
      return new _engine.CkPictureRecorder.new();
    }
    createSceneBuilder() {
      return new _engine.LayerSceneBuilder.new();
    }
    createBlurImageFilter(opts) {
      let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : 0;
      if (sigmaX == null) dart.nullFailed(I[259], 179, 19, "sigmaX");
      let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : 0;
      if (sigmaY == null) dart.nullFailed(I[259], 180, 18, "sigmaY");
      let tileMode = opts && 'tileMode' in opts ? opts.tileMode : C[586] || CT.C586;
      if (tileMode == null) dart.nullFailed(I[259], 181, 23, "tileMode");
      return new _engine._CkBlurImageFilter.new({sigmaX: sigmaX, sigmaY: sigmaY, tileMode: tileMode});
    }
    createDilateImageFilter(opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[259], 186, 19, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[259], 186, 41, "radiusY");
      return new _engine._CkDilateImageFilter.new({radiusX: radiusX, radiusY: radiusY});
    }
    createErodeImageFilter(opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[259], 191, 19, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[259], 191, 41, "radiusY");
      return new _engine._CkErodeImageFilter.new({radiusX: radiusX, radiusY: radiusY});
    }
    createMatrixImageFilter(matrix4, opts) {
      if (matrix4 == null) dart.nullFailed(I[259], 195, 54, "matrix4");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[594] || CT.C594;
      if (filterQuality == null) dart.nullFailed(I[259], 196, 29, "filterQuality");
      return new _engine._CkMatrixImageFilter.new({matrix: matrix4, filterQuality: filterQuality});
    }
    composeImageFilters(opts) {
      let outer = opts && 'outer' in opts ? opts.outer : null;
      if (outer == null) dart.nullFailed(I[259], 201, 32, "outer");
      let inner = opts && 'inner' in opts ? opts.inner : null;
      if (inner == null) dart.nullFailed(I[259], 201, 63, "inner");
      if (T$9.EngineColorFilter()[_is](outer)) {
        let colorFilter = dart.nullCheck(_engine.createCkColorFilter(outer));
        outer = new _engine.CkColorFilterImageFilter.new({colorFilter: colorFilter});
      }
      if (T$9.EngineColorFilter()[_is](inner)) {
        let colorFilter = dart.nullCheck(_engine.createCkColorFilter(inner));
        inner = new _engine.CkColorFilterImageFilter.new({colorFilter: colorFilter});
      }
      return new _engine._CkComposeImageFilter.new({outer: T$9.CkImageFilter()[_as](outer), inner: T$9.CkImageFilter()[_as](inner)});
    }
    instantiateImageCodec(list, opts) {
      if (list == null) dart.nullFailed(I[259], 215, 52, "list");
      let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
      let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
      let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
      if (allowUpscaling == null) dart.nullFailed(I[259], 218, 16, "allowUpscaling");
      return async.async(T$9.Codec(), function* instantiateImageCodec() {
        return _engine.skiaInstantiateImageCodec(list, targetWidth, targetHeight);
      });
    }
    instantiateImageCodecFromUrl(uri, opts) {
      if (uri == null) dart.nullFailed(I[259], 222, 53, "uri");
      let chunkCallback = opts && 'chunkCallback' in opts ? opts.chunkCallback : null;
      return _engine.skiaInstantiateWebImageCodec(dart.toString(uri), chunkCallback);
    }
    createImageFromImageBitmap(imageBitmap) {
      if (imageBitmap == null) dart.nullFailed(I[259], 227, 54, "imageBitmap");
      let skImage = _engine['CanvasKitExtension|MakeLazyImageFromImageBitmap'](_engine.canvasKit, imageBitmap, true);
      if (skImage == null) {
        dart.throw(core.Exception.new("Failed to convert image bitmap to an SkImage."));
      }
      return new _engine.CkImage.new(skImage);
    }
    createImageFromTextureSource(object, opts) {
      if (object == null) dart.nullFailed(I[259], 237, 57, "object");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[259], 238, 21, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[259], 238, 41, "height");
      let transferOwnership = opts && 'transferOwnership' in opts ? opts.transferOwnership : null;
      if (transferOwnership == null) dart.nullFailed(I[259], 238, 63, "transferOwnership");
      return async.async(T$10.Image(), (function* createImageFromTextureSource() {
        let t$36521, t$36523, t$36522;
        if (!dart.test(transferOwnership)) {
          let bitmap = (yield _engine.createImageBitmap(object, (t$36522 = 0, t$36523 = 0, t$36521 = width, dart.recordLiteral("4;height,width,x,y", 0, ["height", "width", "x", "y"], [height, t$36521, t$36522, t$36523]))));
          return this.createImageFromImageBitmap(bitmap);
        }
        let skImage = _engine['CanvasKitExtension|MakeLazyImageFromTextureSourceWithInfo'](_engine.canvasKit, object, _engine.SkPartialImageInfo.new({width: width[$toDouble](), height: height[$toDouble](), alphaType: js_util.getProperty(T$9.SkAlphaType(), js_util.getProperty(T$9.SkAlphaTypeEnum(), _engine.canvasKit, "AlphaType"), "Premul"), colorType: js_util.getProperty(T$9.SkColorType(), js_util.getProperty(T$9.SkColorTypeEnum(), _engine.canvasKit, "ColorType"), "RGBA_8888"), colorSpace: dart.jsInteropNullCheck(dart.global.window.flutterCanvasKit.ColorSpace.SRGB)}));
        if (skImage == null) {
          dart.throw(core.Exception.new("Failed to convert image bitmap to an SkImage."));
        }
        return new _engine.CkImage.new(skImage);
      }).bind(this));
    }
    decodeImageFromPixels(pixels, width, height, format, callback, opts) {
      if (pixels == null) dart.nullFailed(I[259], 260, 40, "pixels");
      if (width == null) dart.nullFailed(I[259], 260, 52, "width");
      if (height == null) dart.nullFailed(I[259], 260, 63, "height");
      if (format == null) dart.nullFailed(I[259], 261, 26, "format");
      if (callback == null) dart.nullFailed(I[259], 261, 58, "callback");
      let rowBytes = opts && 'rowBytes' in opts ? opts.rowBytes : null;
      let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
      let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
      let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
      if (allowUpscaling == null) dart.nullFailed(I[259], 265, 16, "allowUpscaling");
      return _engine.skiaDecodeImageFromPixels(pixels, width, height, format, callback, {rowBytes: rowBytes, targetWidth: targetWidth, targetHeight: targetHeight, allowUpscaling: allowUpscaling});
    }
    createImageShader(image, tmx, tmy, matrix4, filterQuality) {
      if (image == null) dart.nullFailed(I[259], 274, 20, "image");
      if (tmx == null) dart.nullFailed(I[259], 275, 23, "tmx");
      if (tmy == null) dart.nullFailed(I[259], 276, 23, "tmy");
      if (matrix4 == null) dart.nullFailed(I[259], 277, 23, "matrix4");
      return new _engine.CkImageShader.new(image, tmx, tmy, matrix4, filterQuality);
    }
    createPath() {
      return _engine.CkPath.new();
    }
    copyPath(src) {
      if (src == null) dart.nullFailed(I[259], 285, 28, "src");
      return _engine.CkPath.from(T$9.CkPath()[_as](src));
    }
    combinePaths(op, path1, path2) {
      if (op == null) dart.nullFailed(I[259], 288, 41, "op");
      if (path1 == null) dart.nullFailed(I[259], 288, 53, "path1");
      if (path2 == null) dart.nullFailed(I[259], 288, 68, "path2");
      return _engine.CkPath.combine(op, path1, path2);
    }
    createTextStyle(opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      return _engine.CkTextStyle.new({color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, leadingDistribution: leadingDistribution, locale: locale, background: T$10.CkPaintN()[_as](background), foreground: T$10.CkPaintN()[_as](foreground), shadows: shadows, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
    createParagraphStyle(opts) {
      let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      let maxLines = opts && 'maxLines' in opts ? opts.maxLines : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let textHeightBehavior = opts && 'textHeightBehavior' in opts ? opts.textHeightBehavior : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let strutStyle = opts && 'strutStyle' in opts ? opts.strutStyle : null;
      let ellipsis = opts && 'ellipsis' in opts ? opts.ellipsis : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      return new _engine.CkParagraphStyle.new({textAlign: textAlign, textDirection: textDirection, maxLines: maxLines, fontFamily: fontFamily, fontSize: fontSize, height: height, textHeightBehavior: textHeightBehavior, fontWeight: fontWeight, fontStyle: fontStyle, strutStyle: strutStyle, ellipsis: ellipsis, locale: locale});
    }
    createStrutStyle(opts) {
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let leading = opts && 'leading' in opts ? opts.leading : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let forceStrutHeight = opts && 'forceStrutHeight' in opts ? opts.forceStrutHeight : null;
      return new _engine.CkStrutStyle.new({fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, height: height, leadingDistribution: leadingDistribution, leading: leading, fontWeight: fontWeight, fontStyle: fontStyle, forceStrutHeight: forceStrutHeight});
    }
    createParagraphBuilder(style) {
      if (style == null) dart.nullFailed(I[259], 391, 64, "style");
      return new _engine.CkParagraphBuilder.new(style);
    }
    renderScene(scene, view) {
      if (scene == null) dart.nullFailed(I[259], 397, 37, "scene");
      if (view == null) dart.nullFailed(I[259], 397, 59, "view");
      return async.async(T$.void(), (function* renderScene() {
        let t$36521, t$36521$, t$36521$0;
        if (!dart.test(this[_rasterizers][$containsKey](view.viewId))) dart.assertFailed("Unable to render to a view which hasn't been registered", I[259], 398, 12, "_rasterizers.containsKey(view.viewId)");
        let rasterizer = dart.nullCheck(this[_rasterizers][$_get](view.viewId));
        let renderQueue = rasterizer.queue;
        let recorder = dart.test(_engine.FrameTimingRecorder.frameTimingsEnabled) ? new _engine.FrameTimingRecorder.new() : null;
        if (renderQueue.current != null) {
          t$36521 = renderQueue.next;
          t$36521 == null ? null : t$36521.completer.complete();
          let completer = G$.CompleterOfvoid().new();
          renderQueue.next = (t$36521$ = scene, dart.recordLiteral("3;completer,recorder,scene", 0, ["completer", "recorder", "scene"], [completer, recorder, t$36521$]));
          return completer.future;
        }
        let completer = G$.CompleterOfvoid().new();
        renderQueue.current = (t$36521$0 = scene, dart.recordLiteral("3;completer,recorder,scene", 0, ["completer", "recorder", "scene"], [completer, recorder, t$36521$0]));
        async.unawaited(this[_kickRenderLoop](rasterizer));
        return completer.future;
      }).bind(this));
    }
    [_kickRenderLoop](rasterizer) {
      if (rasterizer == null) dart.nullFailed(I[259], 420, 47, "rasterizer");
      return async.async(T$.void(), (function* _kickRenderLoop$() {
        let renderQueue = rasterizer.queue;
        let current = dart.nullCheck(renderQueue.current);
        try {
          yield this[_renderScene](current.scene, rasterizer, current.recorder);
          current.completer.complete();
        } catch (t$36$35e) {
          let error = dart.getThrown(t$36$35e);
          let stackTrace = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](error)) {
            current.completer.completeError(error, stackTrace);
          } else
            throw t$36$35e;
        }
        renderQueue.current = renderQueue.next;
        renderQueue.next = null;
        if (renderQueue.current == null) {
          return;
        } else {
          return this[_kickRenderLoop](rasterizer);
        }
      }).bind(this));
    }
    [_renderScene](scene, rasterizer, recorder) {
      if (scene == null) dart.nullFailed(I[259], 438, 38, "scene");
      if (rasterizer == null) dart.nullFailed(I[259], 438, 60, "rasterizer");
      return async.async(T$.void(), function* _renderScene() {
        let t$36522, t$36522$, t$36522$0, t$36522$1;
        t$36522 = recorder;
        t$36522 == null ? null : t$36522.recordBuildFinish();
        t$36522$ = recorder;
        t$36522$ == null ? null : t$36522$.recordRasterStart();
        yield rasterizer.draw(T$10.LayerScene()[_as](scene).layerTree);
        t$36522$0 = recorder;
        t$36522$0 == null ? null : t$36522$0.recordRasterFinish();
        t$36522$1 = recorder;
        t$36522$1 == null ? null : t$36522$1.submitTimings();
      });
    }
    [_onViewCreated](viewId) {
      if (viewId == null) dart.nullFailed(I[259], 458, 27, "viewId");
      let view = dart.nullCheck(_engine.EnginePlatformDispatcher.instance.viewManager._get(viewId));
      this[_rasterizers][$_set](view.viewId, this[_rasterizer].createViewRasterizer(view));
    }
    [_onViewDisposed](viewId) {
      if (viewId == null) dart.nullFailed(I[259], 464, 28, "viewId");
      if (!dart.test(this[_rasterizers][$containsKey](viewId))) {
        return;
      }
      let rasterizer = dart.nullCheck(this[_rasterizers][$remove](viewId));
      rasterizer.dispose();
    }
    debugGetRasterizerForView(view) {
      if (view == null) dart.nullFailed(I[259], 473, 63, "view");
      return this[_rasterizers][$_get](view.viewId);
    }
    dispose() {
      let t$36522, t$36522$;
      t$36522 = this[_onViewCreatedListener];
      t$36522 == null ? null : t$36522.cancel();
      t$36522$ = this[_onViewDisposedListener];
      t$36522$ == null ? null : t$36522$.cancel();
      for (let rasterizer of this[_rasterizers][$values]) {
        rasterizer.dispose();
      }
      this[_rasterizers][$clear]();
    }
    debugClear() {
      for (let rasterizer of this[_rasterizers][$values]) {
        rasterizer.debugClear();
      }
    }
    clearFragmentProgramCache() {
      _engine.CanvasKitRenderer._programs[$clear]();
    }
    createFragmentProgram(assetKey) {
      let t$36524, t$36523, t$36522;
      if (assetKey == null) dart.nullFailed(I[259], 503, 59, "assetKey");
      if (dart.test(_engine.CanvasKitRenderer._programs[$containsKey](assetKey))) {
        return dart.nullCheck(_engine.CanvasKitRenderer._programs[$_get](assetKey));
      }
      t$36522 = _engine.CanvasKitRenderer._programs;
      t$36523 = assetKey;
      t$36524 = ui_web.assetManager.load(assetKey).then(T$10.FragmentProgram(), dart.fn(data => {
        if (data == null) dart.nullFailed(I[259], 508, 59, "data");
        return _engine.CkFragmentProgram.fromBytes(assetKey, data[$buffer][$asUint8List]());
      }, T$10.ByteDataToCkFragmentProgram()));
      t$36522[$_set](t$36523, t$36524);
      return t$36524;
    }
    createLineMetrics(opts) {
      let hardBreak = opts && 'hardBreak' in opts ? opts.hardBreak : null;
      if (hardBreak == null) dart.nullFailed(I[259], 515, 26, "hardBreak");
      let ascent = opts && 'ascent' in opts ? opts.ascent : null;
      if (ascent == null) dart.nullFailed(I[259], 516, 27, "ascent");
      let descent = opts && 'descent' in opts ? opts.descent : null;
      if (descent == null) dart.nullFailed(I[259], 517, 27, "descent");
      let unscaledAscent = opts && 'unscaledAscent' in opts ? opts.unscaledAscent : null;
      if (unscaledAscent == null) dart.nullFailed(I[259], 518, 27, "unscaledAscent");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[259], 519, 27, "height");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[259], 520, 27, "width");
      let left = opts && 'left' in opts ? opts.left : null;
      if (left == null) dart.nullFailed(I[259], 521, 27, "left");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[259], 522, 27, "baseline");
      let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
      if (lineNumber == null) dart.nullFailed(I[259], 523, 24, "lineNumber");
      return new _engine.EngineLineMetrics.new({hardBreak: hardBreak, ascent: ascent, descent: descent, unscaledAscent: unscaledAscent, height: height, width: width, left: left, baseline: baseline, lineNumber: lineNumber});
    }
    static ['_#new#tearOff']() {
      return new _engine.CanvasKitRenderer.new();
    }
  };
  (_engine.CanvasKitRenderer.new = function() {
    this[_initialized] = null;
    this[__CanvasKitRenderer__fontCollection] = null;
    this[__CanvasKitRenderer__fontCollection_isSet] = false;
    this[_sceneHost] = null;
    this[_rasterizer] = _engine.CanvasKitRenderer._createRasterizer();
    this[pictureToImageSurface] = new _engine.Surface.new();
    this[_onViewCreatedListener] = null;
    this[_onViewDisposedListener] = null;
    this[_rasterizers] = new (G$.IdentityMapOfint$ViewRasterizer()).new();
    ;
  }).prototype = _engine.CanvasKitRenderer.prototype;
  dart.addRtiResources(_engine.CanvasKitRenderer, ["_engine|CanvasKitRenderer", "_engine|Renderer"]);
  dart.setMethodSignature(_engine.CanvasKitRenderer, () => dart.global.Object.setPrototypeOf({
    debugOverrideRasterizer: T$10.RasterizerTovoid(),
    initialize: T$.VoidToFutureOfvoid(),
    createPaint: T$8.VoidToPaint(),
    createVertices: T$8.VertexModeAndListOfOffset__ToVertices(),
    createVerticesRaw: T$8.VertexModeAndFloat32List__ToVertices(),
    createCanvas: T$8.PictureRecorderAndRectNToCanvas(),
    createLinearGradient: T$10.OffsetAndOffsetAndListOfColor__ToGradient$1(),
    createRadialGradient: T$10.OffsetAnddoubleAndListOfColor__ToGradient$1(),
    createConicalGradient: T$10.OffsetAnddoubleAndOffset__ToGradient(),
    createSweepGradient: T$10.OffsetAndListOfColorAndListNOfdouble__ToGradient$1(),
    createPictureRecorder: T$8.VoidToPictureRecorder(),
    createSceneBuilder: T$8.VoidToSceneBuilder(),
    createBlurImageFilter: T$9.__ToImageFilter(),
    createDilateImageFilter: T$9.__ToImageFilter$1(),
    createErodeImageFilter: T$9.__ToImageFilter$1(),
    createMatrixImageFilter: T$9.Float64List__ToImageFilter(),
    composeImageFilters: T$9.__ToImageFilter$2(),
    instantiateImageCodec: T$10.Uint8List__ToFutureOfCodec(),
    instantiateImageCodecFromUrl: T$10.Uri__ToFutureOfCodec(),
    createImageFromImageBitmap: T$10.DomImageBitmapToImage(),
    createImageFromTextureSource: T$10.Object__ToFutureOrOfImage(),
    decodeImageFromPixels: T$10.Uint8ListAndintAndint__Tovoid(),
    createImageShader: T$10.ImageAndTileModeAndTileMode__ToImageShader$1(),
    createPath: T$9.VoidToPath(),
    copyPath: T$9.PathToPath(),
    combinePaths: T$9.PathOperationAndPathAndPathToPath(),
    createTextStyle: T$9.__ToTextStyle(),
    createParagraphStyle: T$9.__ToParagraphStyle(),
    createStrutStyle: T$9.__ToStrutStyle(),
    createParagraphBuilder: T$9.ParagraphStyleToParagraphBuilder(),
    renderScene: T$10.SceneAndFlutterViewToFutureOfvoid(),
    [_kickRenderLoop]: T$10.ViewRasterizerToFutureOfvoid(),
    [_renderScene]: T$10.SceneAndViewRasterizerAndFrameTimingRecorderNToFutureOfvoid(),
    [_onViewCreated]: T$.intTovoid(),
    [_onViewDisposed]: T$.intTovoid(),
    debugGetRasterizerForView: T$10.EngineFlutterViewToViewRasterizerN(),
    dispose: T$.VoidTovoid(),
    debugClear: T$.VoidTovoid(),
    clearFragmentProgramCache: T$.VoidTovoid(),
    createFragmentProgram: T$9.StringToFutureOfFragmentProgram(),
    createLineMetrics: T$9.__ToLineMetrics()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CanvasKitRenderer))));
  dart.setStaticMethodSignature(_engine.CanvasKitRenderer, () => ['_createRasterizer']);
  dart.setGetterSignature(_engine.CanvasKitRenderer, () => dart.global.Object.setPrototypeOf({
    rendererTag: T$.String(),
    [_fontCollection]: T$9.SkiaFontCollection(),
    fontCollection: T$9.SkiaFontCollection(),
    sceneHost: T$9.DomElementN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CanvasKitRenderer))));
  dart.setSetterSignature(_engine.CanvasKitRenderer, () => dart.global.Object.setPrototypeOf({resourceCacheMaxBytes: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CanvasKitRenderer))));
  dart.setStaticGetterSignature(_engine.CanvasKitRenderer, () => ['instance', '_instance']);
  dart.setStaticSetterSignature(_engine.CanvasKitRenderer, () => ['_instance']);
  dart.setLibraryUri(_engine.CanvasKitRenderer, I[220]);
  dart.setFieldSignature(_engine.CanvasKitRenderer, () => dart.global.Object.setPrototypeOf({
    [_initialized]: {type: T$10.FutureNOfvoid(), isConst: false, isFinal: false, libraryUri: I[39]},
    [__CanvasKitRenderer__fontCollection]: {type: T$10.SkiaFontCollectionN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CanvasKitRenderer__fontCollection_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_sceneHost]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_rasterizer]: {type: T$10.Rasterizer(), isConst: false, isFinal: false, libraryUri: I[220]},
    pictureToImageSurface: {type: T$10.Surface(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_onViewCreatedListener]: {type: T$10.StreamSubscriptionNOfint(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onViewDisposedListener]: {type: T$10.StreamSubscriptionNOfint(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_rasterizers]: {type: T$10.MapOfint$ViewRasterizer(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CanvasKitRenderer))));
  dart.setStaticFieldSignature(_engine.CanvasKitRenderer, () => ['_#_instance', '_#_instance#isSet', '_programs']);
  dart.defineLazy(_engine.CanvasKitRenderer, {
    /*_engine.CanvasKitRenderer['_#_instance']*/get ['_#_instance']() {
      return null;
    },
    set ['_#_instance'](value) {},
    /*_engine.CanvasKitRenderer['_#_instance#isSet']*/get ['_#_instance#isSet']() {
      return false;
    },
    set ['_#_instance#isSet'](value) {
      if (value == null) dart.nullFailed(I[259], 26, 33, "_#_instance#isSet");
    },
    /*_engine.CanvasKitRenderer._programs*/get _programs() {
      return new (G$.IdentityMapOfString$FutureOfFragmentProgram()).new();
    }
  }, false);
  _engine.CkShader = class CkShader extends core.Object {};
  (_engine.CkShader.new = function() {
    ;
  }).prototype = _engine.CkShader.prototype;
  dart.addRtiResources(_engine.CkShader, ["_engine|CkShader", "ui|Shader"]);
  dart.setLibraryUri(_engine.CkShader, I[220]);
  var __SimpleCkShader__ref = dart.privateName(_engine, "_#SimpleCkShader#_ref");
  var __SimpleCkShader__ref_isSet = dart.privateName(_engine, "_#SimpleCkShader#_ref#isSet");
  _engine.SimpleCkShader = class SimpleCkShader extends core.Object {
    get [_ref]() {
      let t$36522;
      return dart.test(this[__SimpleCkShader__ref_isSet]) ? (t$36522 = this[__SimpleCkShader__ref], t$36522) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[260], 36, 34, "_ref#param");
      if (dart.test(this[__SimpleCkShader__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__SimpleCkShader__ref_isSet] = true;
        this[__SimpleCkShader__ref] = _ref$35param;
      }
    }
    getSkShader(contextualQuality) {
      if (contextualQuality == null) dart.nullFailed(I[260], 39, 41, "contextualQuality");
      return this[_ref].nativeObject;
    }
    get debugDisposed() {
      return this[_ref].isDisposed;
    }
    dispose() {
      this[_ref].dispose();
    }
    toString() {
      return "Gradient()";
    }
  };
  (_engine.SimpleCkShader.new = function() {
    this[__SimpleCkShader__ref] = null;
    this[__SimpleCkShader__ref_isSet] = false;
    this[_ref] = new (G$.UniqueRefOfSkShader()).new(this, this.createSkiaObject(), this.debugOwnerLabel);
  }).prototype = _engine.SimpleCkShader.prototype;
  dart.addRtiResources(_engine.SimpleCkShader, ["_engine|SimpleCkShader", "_engine|CkShader", "ui|Shader"]);
  dart.setMethodSignature(_engine.SimpleCkShader, () => dart.global.Object.setPrototypeOf({
    getSkShader: T$10.FilterQualityToSkShader(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SimpleCkShader))));
  dart.setGetterSignature(_engine.SimpleCkShader, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkShader(),
    debugDisposed: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SimpleCkShader))));
  dart.setSetterSignature(_engine.SimpleCkShader, () => dart.global.Object.setPrototypeOf({[_ref]: T$10.UniqueRefOfSkShader()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.SimpleCkShader))));
  dart.setLibraryUri(_engine.SimpleCkShader, I[220]);
  dart.setFieldSignature(_engine.SimpleCkShader, () => dart.global.Object.setPrototypeOf({
    [__SimpleCkShader__ref]: {type: T$10.UniqueRefNOfSkShader(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__SimpleCkShader__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SimpleCkShader))));
  dart.defineExtensionMethods(_engine.SimpleCkShader, ['toString']);
  var center$ = dart.privateName(_engine, "CkGradientSweep.center");
  var colors$ = dart.privateName(_engine, "CkGradientSweep.colors");
  var colorStops$ = dart.privateName(_engine, "CkGradientSweep.colorStops");
  var tileMode$ = dart.privateName(_engine, "CkGradientSweep.tileMode");
  var startAngle$ = dart.privateName(_engine, "CkGradientSweep.startAngle");
  var endAngle$ = dart.privateName(_engine, "CkGradientSweep.endAngle");
  var matrix4$ = dart.privateName(_engine, "CkGradientSweep.matrix4");
  _engine.CkGradientSweep = class CkGradientSweep extends _engine.SimpleCkShader {
    get center() {
      return this[center$];
    }
    set center(value) {
      super.center = value;
    }
    get colors() {
      return this[colors$];
    }
    set colors(value) {
      super.colors = value;
    }
    get colorStops() {
      return this[colorStops$];
    }
    set colorStops(value) {
      super.colorStops = value;
    }
    get tileMode() {
      return this[tileMode$];
    }
    set tileMode(value) {
      super.tileMode = value;
    }
    get startAngle() {
      return this[startAngle$];
    }
    set startAngle(value) {
      super.startAngle = value;
    }
    get endAngle() {
      return this[endAngle$];
    }
    set endAngle(value) {
      super.endAngle = value;
    }
    get matrix4() {
      return this[matrix4$];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    static ['_#new#tearOff'](center, colors, colorStops, tileMode, startAngle, endAngle, matrix4) {
      if (center == null) dart.nullFailed(I[260], 57, 24, "center");
      if (colors == null) dart.nullFailed(I[260], 57, 37, "colors");
      if (tileMode == null) dart.nullFailed(I[260], 57, 67, "tileMode");
      if (startAngle == null) dart.nullFailed(I[260], 58, 12, "startAngle");
      if (endAngle == null) dart.nullFailed(I[260], 58, 29, "endAngle");
      return new _engine.CkGradientSweep.new(center, colors, colorStops, tileMode, startAngle, endAngle, matrix4);
    }
    get debugOwnerLabel() {
      return "Gradient.sweep";
    }
    createSkiaObject() {
      return _engine['SkShaderNamespaceExtension|MakeSweepGradient'](js_util.getProperty(T$10.SkShaderNamespace(), _engine.canvasKit, "Shader"), this.center.dx, this.center.dy, _engine.toFlatColors(this.colors), _engine.toSkColorStops(this.colorStops), _engine.toSkTileMode(this.tileMode), this.matrix4 != null ? _engine.toSkMatrixFromFloat32(dart.nullCheck(this.matrix4)) : null, 0.0, 57.29577951308232 * dart.notNull(this.startAngle), 57.29577951308232 * dart.notNull(this.endAngle));
    }
  };
  (_engine.CkGradientSweep.new = function(center, colors, colorStops, tileMode, startAngle, endAngle, matrix4) {
    if (center == null) dart.nullFailed(I[260], 57, 24, "center");
    if (colors == null) dart.nullFailed(I[260], 57, 37, "colors");
    if (tileMode == null) dart.nullFailed(I[260], 57, 67, "tileMode");
    if (startAngle == null) dart.nullFailed(I[260], 58, 12, "startAngle");
    if (endAngle == null) dart.nullFailed(I[260], 58, 29, "endAngle");
    this[center$] = center;
    this[colors$] = colors;
    this[colorStops$] = colorStops;
    this[tileMode$] = tileMode;
    this[startAngle$] = startAngle;
    this[endAngle$] = endAngle;
    this[matrix4$] = matrix4;
    if (!dart.test(_engine.offsetIsValid(center))) dart.assertFailed(null, I[260], 59, 16, "offsetIsValid(center)");
    if (!(dart.notNull(startAngle) < dart.notNull(endAngle))) dart.assertFailed(null, I[260], 60, 16, "startAngle < endAngle");
    if (!(matrix4 == null || dart.test(_engine.matrix4IsValid(matrix4)))) dart.assertFailed(null, I[260], 61, 16, "matrix4 == null || matrix4IsValid(matrix4)");
    dart.global.Object.getPrototypeOf(_engine.CkGradientSweep).new.call(this);
    _engine.validateColorStops(this.colors, this.colorStops);
  }).prototype = _engine.CkGradientSweep.prototype;
  dart.addRtiResources(_engine.CkGradientSweep, ["_engine|CkGradientSweep", "ui|Gradient", "ui|Shader"]);
  dart.setMethodSignature(_engine.CkGradientSweep, () => dart.global.Object.setPrototypeOf({createSkiaObject: T$10.VoidToSkShader()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkGradientSweep))));
  dart.setGetterSignature(_engine.CkGradientSweep, () => dart.global.Object.setPrototypeOf({debugOwnerLabel: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkGradientSweep))));
  dart.setLibraryUri(_engine.CkGradientSweep, I[220]);
  dart.setFieldSignature(_engine.CkGradientSweep, () => dart.global.Object.setPrototypeOf({
    center: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    colors: {type: T$10.ListOfColor(), isConst: false, isFinal: true, libraryUri: I[11]},
    colorStops: {type: T$10.ListNOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    tileMode: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    startAngle: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    endAngle: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    matrix4: {type: T$5.Float32ListN(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkGradientSweep))));
  var from$ = dart.privateName(_engine, "CkGradientLinear.from");
  var to$ = dart.privateName(_engine, "CkGradientLinear.to");
  var colors$0 = dart.privateName(_engine, "CkGradientLinear.colors");
  var colorStops$0 = dart.privateName(_engine, "CkGradientLinear.colorStops");
  var tileMode$0 = dart.privateName(_engine, "CkGradientLinear.tileMode");
  var matrix4 = dart.privateName(_engine, "CkGradientLinear.matrix4");
  _engine.CkGradientLinear = class CkGradientLinear extends _engine.SimpleCkShader {
    get from() {
      return this[from$];
    }
    set from(value) {
      super.from = value;
    }
    get to() {
      return this[to$];
    }
    set to(value) {
      super.to = value;
    }
    get colors() {
      return this[colors$0];
    }
    set colors(value) {
      super.colors = value;
    }
    get colorStops() {
      return this[colorStops$0];
    }
    set colorStops(value) {
      super.colorStops = value;
    }
    get tileMode() {
      return this[tileMode$0];
    }
    set tileMode(value) {
      super.tileMode = value;
    }
    get matrix4() {
      return this[matrix4];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    static ['_#new#tearOff'](from, to, colors, colorStops, tileMode, matrix) {
      if (from == null) dart.nullFailed(I[260], 95, 10, "from");
      if (to == null) dart.nullFailed(I[260], 96, 10, "to");
      if (colors == null) dart.nullFailed(I[260], 97, 10, "colors");
      if (tileMode == null) dart.nullFailed(I[260], 99, 10, "tileMode");
      return new _engine.CkGradientLinear.new(from, to, colors, colorStops, tileMode, matrix);
    }
    get debugOwnerLabel() {
      return "Gradient.linear";
    }
    createSkiaObject() {
      return _engine['SkShaderNamespaceExtension|MakeLinearGradient'](js_util.getProperty(T$10.SkShaderNamespace(), _engine.canvasKit, "Shader"), _engine.toSkPoint(this.from), _engine.toSkPoint(this.to), _engine.toFlatColors(this.colors), _engine.toSkColorStops(this.colorStops), _engine.toSkTileMode(this.tileMode), this.matrix4 != null ? _engine.toSkMatrixFromFloat32(dart.nullCheck(this.matrix4)) : null);
    }
    toString() {
      return "Gradient()";
    }
  };
  (_engine.CkGradientLinear.new = function(from, to, colors, colorStops, tileMode, matrix) {
    if (from == null) dart.nullFailed(I[260], 95, 10, "from");
    if (to == null) dart.nullFailed(I[260], 96, 10, "to");
    if (colors == null) dart.nullFailed(I[260], 97, 10, "colors");
    if (tileMode == null) dart.nullFailed(I[260], 99, 10, "tileMode");
    this[from$] = from;
    this[to$] = to;
    this[colors$0] = colors;
    this[colorStops$0] = colorStops;
    this[tileMode$0] = tileMode;
    if (!dart.test(_engine.offsetIsValid(from))) dart.assertFailed(null, I[260], 101, 16, "offsetIsValid(from)");
    if (!dart.test(_engine.offsetIsValid(to))) dart.assertFailed(null, I[260], 102, 16, "offsetIsValid(to)");
    this[matrix4] = matrix;
    dart.global.Object.getPrototypeOf(_engine.CkGradientLinear).new.call(this);
    if (!(this.matrix4 == null || dart.test(_engine.matrix4IsValid(dart.nullCheck(this.matrix4))))) dart.assertFailed(null, I[260], 104, 12, "matrix4 == null || matrix4IsValid(matrix4!)");
    if (!dart.test(dart.fn(() => {
      _engine.validateColorStops(this.colors, this.colorStops);
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[260], 106, 12, "() {\n      validateColorStops(colors, colorStops);\n      return true;\n    }()");
  }).prototype = _engine.CkGradientLinear.prototype;
  dart.addRtiResources(_engine.CkGradientLinear, ["_engine|CkGradientLinear", "ui|Gradient", "ui|Shader"]);
  dart.setMethodSignature(_engine.CkGradientLinear, () => dart.global.Object.setPrototypeOf({createSkiaObject: T$10.VoidToSkShader()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkGradientLinear))));
  dart.setGetterSignature(_engine.CkGradientLinear, () => dart.global.Object.setPrototypeOf({debugOwnerLabel: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkGradientLinear))));
  dart.setLibraryUri(_engine.CkGradientLinear, I[220]);
  dart.setFieldSignature(_engine.CkGradientLinear, () => dart.global.Object.setPrototypeOf({
    from: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    to: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    colors: {type: T$10.ListOfColor(), isConst: false, isFinal: true, libraryUri: I[11]},
    colorStops: {type: T$10.ListNOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    tileMode: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    matrix4: {type: T$5.Float32ListN(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkGradientLinear))));
  dart.defineExtensionMethods(_engine.CkGradientLinear, ['toString']);
  var center$0 = dart.privateName(_engine, "CkGradientRadial.center");
  var radius$ = dart.privateName(_engine, "CkGradientRadial.radius");
  var colors$1 = dart.privateName(_engine, "CkGradientRadial.colors");
  var colorStops$1 = dart.privateName(_engine, "CkGradientRadial.colorStops");
  var tileMode$1 = dart.privateName(_engine, "CkGradientRadial.tileMode");
  var matrix4$0 = dart.privateName(_engine, "CkGradientRadial.matrix4");
  _engine.CkGradientRadial = class CkGradientRadial extends _engine.SimpleCkShader {
    get center() {
      return this[center$0];
    }
    set center(value) {
      super.center = value;
    }
    get radius() {
      return this[radius$];
    }
    set radius(value) {
      super.radius = value;
    }
    get colors() {
      return this[colors$1];
    }
    set colors(value) {
      super.colors = value;
    }
    get colorStops() {
      return this[colorStops$1];
    }
    set colorStops(value) {
      super.colorStops = value;
    }
    get tileMode() {
      return this[tileMode$1];
    }
    set tileMode(value) {
      super.tileMode = value;
    }
    get matrix4() {
      return this[matrix4$0];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    static ['_#new#tearOff'](center, radius, colors, colorStops, tileMode, matrix4) {
      if (center == null) dart.nullFailed(I[260], 139, 25, "center");
      if (radius == null) dart.nullFailed(I[260], 139, 38, "radius");
      if (colors == null) dart.nullFailed(I[260], 139, 51, "colors");
      if (tileMode == null) dart.nullFailed(I[260], 140, 12, "tileMode");
      return new _engine.CkGradientRadial.new(center, radius, colors, colorStops, tileMode, matrix4);
    }
    get debugOwnerLabel() {
      return "Gradient.radial";
    }
    createSkiaObject() {
      return _engine['SkShaderNamespaceExtension|MakeRadialGradient'](js_util.getProperty(T$10.SkShaderNamespace(), _engine.canvasKit, "Shader"), _engine.toSkPoint(this.center), this.radius, _engine.toFlatColors(this.colors), _engine.toSkColorStops(this.colorStops), _engine.toSkTileMode(this.tileMode), this.matrix4 != null ? _engine.toSkMatrixFromFloat32(dart.nullCheck(this.matrix4)) : null, 0.0);
    }
    toString() {
      return "Gradient()";
    }
  };
  (_engine.CkGradientRadial.new = function(center, radius, colors, colorStops, tileMode, matrix4) {
    if (center == null) dart.nullFailed(I[260], 139, 25, "center");
    if (radius == null) dart.nullFailed(I[260], 139, 38, "radius");
    if (colors == null) dart.nullFailed(I[260], 139, 51, "colors");
    if (tileMode == null) dart.nullFailed(I[260], 140, 12, "tileMode");
    this[center$0] = center;
    this[radius$] = radius;
    this[colors$1] = colors;
    this[colorStops$1] = colorStops;
    this[tileMode$1] = tileMode;
    this[matrix4$0] = matrix4;
    dart.global.Object.getPrototypeOf(_engine.CkGradientRadial).new.call(this);
    ;
  }).prototype = _engine.CkGradientRadial.prototype;
  dart.addRtiResources(_engine.CkGradientRadial, ["_engine|CkGradientRadial", "ui|Gradient", "ui|Shader"]);
  dart.setMethodSignature(_engine.CkGradientRadial, () => dart.global.Object.setPrototypeOf({createSkiaObject: T$10.VoidToSkShader()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkGradientRadial))));
  dart.setGetterSignature(_engine.CkGradientRadial, () => dart.global.Object.setPrototypeOf({debugOwnerLabel: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkGradientRadial))));
  dart.setLibraryUri(_engine.CkGradientRadial, I[220]);
  dart.setFieldSignature(_engine.CkGradientRadial, () => dart.global.Object.setPrototypeOf({
    center: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    radius: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    colors: {type: T$10.ListOfColor(), isConst: false, isFinal: true, libraryUri: I[11]},
    colorStops: {type: T$10.ListNOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    tileMode: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    matrix4: {type: T$5.Float32ListN(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkGradientRadial))));
  dart.defineExtensionMethods(_engine.CkGradientRadial, ['toString']);
  var focal$ = dart.privateName(_engine, "CkGradientConical.focal");
  var focalRadius$ = dart.privateName(_engine, "CkGradientConical.focalRadius");
  var center$1 = dart.privateName(_engine, "CkGradientConical.center");
  var radius$0 = dart.privateName(_engine, "CkGradientConical.radius");
  var colors$2 = dart.privateName(_engine, "CkGradientConical.colors");
  var colorStops$2 = dart.privateName(_engine, "CkGradientConical.colorStops");
  var tileMode$2 = dart.privateName(_engine, "CkGradientConical.tileMode");
  var matrix4$1 = dart.privateName(_engine, "CkGradientConical.matrix4");
  _engine.CkGradientConical = class CkGradientConical extends _engine.SimpleCkShader {
    get focal() {
      return this[focal$];
    }
    set focal(value) {
      super.focal = value;
    }
    get focalRadius() {
      return this[focalRadius$];
    }
    set focalRadius(value) {
      super.focalRadius = value;
    }
    get center() {
      return this[center$1];
    }
    set center(value) {
      super.center = value;
    }
    get radius() {
      return this[radius$0];
    }
    set radius(value) {
      super.radius = value;
    }
    get colors() {
      return this[colors$2];
    }
    set colors(value) {
      super.colors = value;
    }
    get colorStops() {
      return this[colorStops$2];
    }
    set colorStops(value) {
      super.colorStops = value;
    }
    get tileMode() {
      return this[tileMode$2];
    }
    set tileMode(value) {
      super.tileMode = value;
    }
    get matrix4() {
      return this[matrix4$1];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    static ['_#new#tearOff'](focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix4) {
      if (focal == null) dart.nullFailed(I[260], 170, 26, "focal");
      if (focalRadius == null) dart.nullFailed(I[260], 170, 38, "focalRadius");
      if (center == null) dart.nullFailed(I[260], 170, 56, "center");
      if (radius == null) dart.nullFailed(I[260], 170, 69, "radius");
      if (colors == null) dart.nullFailed(I[260], 171, 12, "colors");
      if (tileMode == null) dart.nullFailed(I[260], 171, 42, "tileMode");
      return new _engine.CkGradientConical.new(focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix4);
    }
    get debugOwnerLabel() {
      return "Gradient.radial(conical)";
    }
    createSkiaObject() {
      return _engine['SkShaderNamespaceExtension|MakeTwoPointConicalGradient'](js_util.getProperty(T$10.SkShaderNamespace(), _engine.canvasKit, "Shader"), _engine.toSkPoint(this.focal), this.focalRadius, _engine.toSkPoint(this.center), this.radius, _engine.toFlatColors(this.colors), _engine.toSkColorStops(this.colorStops), _engine.toSkTileMode(this.tileMode), this.matrix4 != null ? _engine.toSkMatrixFromFloat32(dart.nullCheck(this.matrix4)) : null, 0.0);
    }
  };
  (_engine.CkGradientConical.new = function(focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix4) {
    if (focal == null) dart.nullFailed(I[260], 170, 26, "focal");
    if (focalRadius == null) dart.nullFailed(I[260], 170, 38, "focalRadius");
    if (center == null) dart.nullFailed(I[260], 170, 56, "center");
    if (radius == null) dart.nullFailed(I[260], 170, 69, "radius");
    if (colors == null) dart.nullFailed(I[260], 171, 12, "colors");
    if (tileMode == null) dart.nullFailed(I[260], 171, 42, "tileMode");
    this[focal$] = focal;
    this[focalRadius$] = focalRadius;
    this[center$1] = center;
    this[radius$0] = radius;
    this[colors$2] = colors;
    this[colorStops$2] = colorStops;
    this[tileMode$2] = tileMode;
    this[matrix4$1] = matrix4;
    dart.global.Object.getPrototypeOf(_engine.CkGradientConical).new.call(this);
    ;
  }).prototype = _engine.CkGradientConical.prototype;
  dart.addRtiResources(_engine.CkGradientConical, ["_engine|CkGradientConical", "ui|Gradient", "ui|Shader"]);
  dart.setMethodSignature(_engine.CkGradientConical, () => dart.global.Object.setPrototypeOf({createSkiaObject: T$10.VoidToSkShader()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkGradientConical))));
  dart.setGetterSignature(_engine.CkGradientConical, () => dart.global.Object.setPrototypeOf({debugOwnerLabel: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkGradientConical))));
  dart.setLibraryUri(_engine.CkGradientConical, I[220]);
  dart.setFieldSignature(_engine.CkGradientConical, () => dart.global.Object.setPrototypeOf({
    focal: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    focalRadius: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    center: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    radius: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    colors: {type: T$10.ListOfColor(), isConst: false, isFinal: true, libraryUri: I[11]},
    colorStops: {type: T$10.ListNOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    tileMode: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    matrix4: {type: T$5.Float32ListN(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkGradientConical))));
  var tileModeX$ = dart.privateName(_engine, "CkImageShader.tileModeX");
  var tileModeY$ = dart.privateName(_engine, "CkImageShader.tileModeY");
  var matrix4$2 = dart.privateName(_engine, "CkImageShader.matrix4");
  var filterQuality$0 = dart.privateName(_engine, "CkImageShader.filterQuality");
  var ref$ = dart.privateName(_engine, "CkImageShader.ref");
  var __CkImageShader_currentQuality = dart.privateName(_engine, "_#CkImageShader#currentQuality");
  var __CkImageShader_currentQuality_isSet = dart.privateName(_engine, "_#CkImageShader#currentQuality#isSet");
  var _image = dart.privateName(_engine, "_image");
  var _initializeSkImageShader = dart.privateName(_engine, "_initializeSkImageShader");
  _engine.CkImageShader = class CkImageShader extends core.Object {
    get tileModeX() {
      return this[tileModeX$];
    }
    set tileModeX(value) {
      super.tileModeX = value;
    }
    get tileModeY() {
      return this[tileModeY$];
    }
    set tileModeY(value) {
      super.tileModeY = value;
    }
    get matrix4() {
      return this[matrix4$2];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    get filterQuality() {
      return this[filterQuality$0];
    }
    set filterQuality(value) {
      super.filterQuality = value;
    }
    get ref() {
      return this[ref$];
    }
    set ref(value) {
      this[ref$] = value;
    }
    static ['_#new#tearOff'](image, tileModeX, tileModeY, matrix4, filterQuality) {
      if (image == null) dart.nullFailed(I[260], 213, 26, "image");
      if (tileModeX == null) dart.nullFailed(I[260], 213, 38, "tileModeX");
      if (tileModeY == null) dart.nullFailed(I[260], 213, 54, "tileModeY");
      if (matrix4 == null) dart.nullFailed(I[260], 213, 70, "matrix4");
      return new _engine.CkImageShader.new(image, tileModeX, tileModeY, matrix4, filterQuality);
    }
    get currentQuality() {
      let t$36522;
      return dart.test(this[__CkImageShader_currentQuality_isSet]) ? (t$36522 = this[__CkImageShader_currentQuality], t$36522) : dart.throw(new _internal.LateError.fieldNI("currentQuality"));
    }
    set currentQuality(currentQuality$35param) {
      if (currentQuality$35param == null) dart.nullFailed(I[260], 234, 25, "currentQuality#param");
      this[__CkImageShader_currentQuality_isSet] = true;
      this[__CkImageShader_currentQuality] = currentQuality$35param;
    }
    get imageWidth() {
      return this[_image].width;
    }
    get imageHeight() {
      return this[_image].height;
    }
    getSkShader(contextualQuality) {
      let t$36522;
      if (contextualQuality == null) dart.nullFailed(I[260], 241, 41, "contextualQuality");
      if (!!dart.test(this.debugDisposed)) dart.assertFailed("Cannot make a copy of a disposed ImageShader.", I[260], 242, 12, "!debugDisposed");
      let quality = (t$36522 = this.filterQuality, t$36522 == null ? contextualQuality : t$36522);
      if (this.currentQuality != quality) {
        this[_initializeSkImageShader](quality);
      }
      return dart.nullCheck(this.ref).nativeObject;
    }
    [_initializeSkImageShader](quality) {
      let t$36522;
      if (quality == null) dart.nullFailed(I[260], 250, 50, "quality");
      let skShader = null;
      if (quality == ui.FilterQuality.high) {
        skShader = _engine['SkImageExtension|makeShaderCubic'](this[_image].skImage, _engine.toSkTileMode(this.tileModeX), _engine.toSkTileMode(this.tileModeY), 1.0 / 3.0, 1.0 / 3.0, _engine.toSkMatrixFromFloat64(this.matrix4));
      } else {
        skShader = _engine['SkImageExtension|makeShaderOptions'](this[_image].skImage, _engine.toSkTileMode(this.tileModeX), _engine.toSkTileMode(this.tileModeY), _engine.toSkFilterMode(quality), _engine.toSkMipmapMode(quality), _engine.toSkMatrixFromFloat64(this.matrix4));
      }
      this.currentQuality = quality;
      t$36522 = this.ref;
      t$36522 == null ? null : t$36522.dispose();
      this.ref = new (G$.UniqueRefOfSkShader()).new(this, skShader, "ImageShader");
    }
    get debugDisposed() {
      return this[_isDisposed];
    }
    dispose() {
      let t$36522;
      if (!!dart.test(this[_isDisposed])) dart.assertFailed("Cannot dispose ImageShader more than once.", I[260], 282, 12, "!_isDisposed");
      this[_isDisposed] = true;
      this[_image].dispose();
      t$36522 = this.ref;
      t$36522 == null ? null : t$36522.dispose();
      this.ref = null;
    }
  };
  (_engine.CkImageShader.new = function(image, tileModeX, tileModeY, matrix4, filterQuality) {
    let t$36522;
    if (image == null) dart.nullFailed(I[260], 213, 26, "image");
    if (tileModeX == null) dart.nullFailed(I[260], 213, 38, "tileModeX");
    if (tileModeY == null) dart.nullFailed(I[260], 213, 54, "tileModeY");
    if (matrix4 == null) dart.nullFailed(I[260], 213, 70, "matrix4");
    this[ref$] = null;
    this[__CkImageShader_currentQuality] = null;
    this[__CkImageShader_currentQuality_isSet] = false;
    this[_isDisposed] = false;
    this[tileModeX$] = tileModeX;
    this[tileModeY$] = tileModeY;
    this[matrix4$2] = matrix4;
    this[filterQuality$0] = filterQuality;
    this[_image] = T$9.CkImage()[_as](image);
    this[_initializeSkImageShader]((t$36522 = this.filterQuality, t$36522 == null ? ui.FilterQuality.none : t$36522));
  }).prototype = _engine.CkImageShader.prototype;
  dart.addRtiResources(_engine.CkImageShader, ["_engine|CkImageShader", "ui|ImageShader", "_engine|CkShader", "ui|Shader"]);
  dart.setMethodSignature(_engine.CkImageShader, () => dart.global.Object.setPrototypeOf({
    getSkShader: T$10.FilterQualityToSkShader(),
    [_initializeSkImageShader]: T$10.FilterQualityTovoid(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkImageShader))));
  dart.setGetterSignature(_engine.CkImageShader, () => dart.global.Object.setPrototypeOf({
    currentQuality: T$9.FilterQuality(),
    imageWidth: T$.int(),
    imageHeight: T$.int(),
    debugDisposed: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkImageShader))));
  dart.setSetterSignature(_engine.CkImageShader, () => dart.global.Object.setPrototypeOf({currentQuality: T$9.FilterQuality()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkImageShader))));
  dart.setLibraryUri(_engine.CkImageShader, I[220]);
  dart.setFieldSignature(_engine.CkImageShader, () => dart.global.Object.setPrototypeOf({
    tileModeX: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    tileModeY: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    matrix4: {type: T$0.Float64List(), isConst: false, isFinal: true, libraryUri: I[43]},
    filterQuality: {type: T$10.FilterQualityN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_image]: {type: T$9.CkImage(), isConst: false, isFinal: true, libraryUri: I[220]},
    ref: {type: T$10.UniqueRefNOfSkShader(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkImageShader_currentQuality]: {type: T$10.FilterQualityN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [__CkImageShader_currentQuality_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isDisposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkImageShader))));
  var skiaSurface$ = dart.privateName(_engine, "SurfaceFrame.skiaSurface");
  var submitCallback$ = dart.privateName(_engine, "SurfaceFrame.submitCallback");
  var _submitted = dart.privateName(_engine, "_submitted");
  _engine.SurfaceFrame = class SurfaceFrame extends core.Object {
    get skiaSurface() {
      return this[skiaSurface$];
    }
    set skiaSurface(value) {
      super.skiaSurface = value;
    }
    get submitCallback() {
      return this[submitCallback$];
    }
    set submitCallback(value) {
      super.submitCallback = value;
    }
    static ['_#new#tearOff'](skiaSurface, submitCallback) {
      if (skiaSurface == null) dart.nullFailed(I[261], 17, 21, "skiaSurface");
      if (submitCallback == null) dart.nullFailed(I[261], 17, 39, "submitCallback");
      return new _engine.SurfaceFrame.new(skiaSurface, submitCallback);
    }
    submit() {
      let t$36522;
      if (dart.test(this[_submitted])) {
        return false;
      }
      t$36522 = this.skiaCanvas;
      return this.submitCallback(this, t$36522);
    }
    get skiaCanvas() {
      return this.skiaSurface.getCanvas();
    }
  };
  (_engine.SurfaceFrame.new = function(skiaSurface, submitCallback) {
    if (skiaSurface == null) dart.nullFailed(I[261], 17, 21, "skiaSurface");
    if (submitCallback == null) dart.nullFailed(I[261], 17, 39, "submitCallback");
    this[skiaSurface$] = skiaSurface;
    this[submitCallback$] = submitCallback;
    this[_submitted] = false;
    ;
  }).prototype = _engine.SurfaceFrame.prototype;
  dart.addRtiResources(_engine.SurfaceFrame, ["_engine|SurfaceFrame"]);
  dart.setMethodSignature(_engine.SurfaceFrame, () => dart.global.Object.setPrototypeOf({submit: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SurfaceFrame))));
  dart.setGetterSignature(_engine.SurfaceFrame, () => dart.global.Object.setPrototypeOf({skiaCanvas: T$9.CkCanvas()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SurfaceFrame))));
  dart.setLibraryUri(_engine.SurfaceFrame, I[220]);
  dart.setFieldSignature(_engine.SurfaceFrame, () => dart.global.Object.setPrototypeOf({
    skiaSurface: {type: T$10.CkSurface(), isConst: false, isFinal: true, libraryUri: I[220]},
    submitCallback: {type: T$10.SurfaceFrameAndCkCanvasTobool(), isConst: false, isFinal: true},
    [_submitted]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfaceFrame))));
  var useOffscreenCanvas = dart.privateName(_engine, "Surface.useOffscreenCanvas");
  var isDisplayCanvas$ = dart.privateName(_engine, "Surface.isDisplayCanvas");
  var hostElement$ = dart.privateName(_engine, "Surface.hostElement");
  var _surface = dart.privateName(_engine, "_surface");
  var _forceNewContext = dart.privateName(_engine, "_forceNewContext");
  var _contextLost = dart.privateName(_engine, "_contextLost");
  var _cachedContextLostListener = dart.privateName(_engine, "_cachedContextLostListener");
  var _cachedContextRestoredListener = dart.privateName(_engine, "_cachedContextRestoredListener");
  var _grContext = dart.privateName(_engine, "_grContext");
  var _glContext$ = dart.privateName(_engine, "_glContext");
  var _skiaCacheBytes = dart.privateName(_engine, "_skiaCacheBytes");
  var _offscreenCanvas = dart.privateName(_engine, "_offscreenCanvas");
  var _canvasElement = dart.privateName(_engine, "_canvasElement");
  var _sampleCount = dart.privateName(_engine, "_sampleCount");
  var _stencilBits = dart.privateName(_engine, "_stencilBits");
  var _currentCanvasPhysicalSize = dart.privateName(_engine, "_currentCanvasPhysicalSize");
  var _currentSurfaceSize = dart.privateName(_engine, "_currentSurfaceSize");
  var _syncCacheBytes = dart.privateName(_engine, "_syncCacheBytes");
  var _presentSurface = dart.privateName(_engine, "_presentSurface");
  var BitmapSize_height = dart.privateName(_engine, "BitmapSize.height");
  var BitmapSize_width = dart.privateName(_engine, "BitmapSize.width");
  var _createNewCanvas = dart.privateName(_engine, "_createNewCanvas");
  var _createNewSurface = dart.privateName(_engine, "_createNewSurface");
  var _contextRestoredListener = dart.privateName(_engine, "_contextRestoredListener");
  var _contextLostListener = dart.privateName(_engine, "_contextLostListener");
  var _initWebglParams = dart.privateName(_engine, "_initWebglParams");
  var _makeSoftwareCanvasSurface = dart.privateName(_engine, "_makeSoftwareCanvasSurface");
  _engine.Surface = class Surface extends _engine.DisplayCanvas {
    get useOffscreenCanvas() {
      return this[useOffscreenCanvas];
    }
    set useOffscreenCanvas(value) {
      super.useOffscreenCanvas = value;
    }
    get isDisplayCanvas() {
      return this[isDisplayCanvas$];
    }
    set isDisplayCanvas(value) {
      super.isDisplayCanvas = value;
    }
    get hostElement() {
      return this[hostElement$];
    }
    set hostElement(value) {
      super.hostElement = value;
    }
    static ['_#new#tearOff'](opts) {
      let isDisplayCanvas = opts && 'isDisplayCanvas' in opts ? opts.isDisplayCanvas : false;
      if (isDisplayCanvas == null) dart.nullFailed(I[261], 40, 17, "isDisplayCanvas");
      return new _engine.Surface.new({isDisplayCanvas: isDisplayCanvas});
    }
    get debugForceNewContext() {
      return this[_forceNewContext];
    }
    get debugContextLost() {
      return this[_contextLost];
    }
    get debugOffscreenCanvas() {
      return this[_offscreenCanvas];
    }
    setSkiaResourceCacheMaxBytes(bytes) {
      if (bytes == null) dart.nullFailed(I[261], 102, 41, "bytes");
      this[_skiaCacheBytes] = bytes;
      this[_syncCacheBytes]();
    }
    [_syncCacheBytes]() {
      let t$36522;
      if (this[_skiaCacheBytes] != null) {
        t$36522 = this[_grContext];
        t$36522 == null ? null : _engine['SkGrContextExtension|setResourceCacheLimitBytes'](t$36522, dart.nullCheck(this[_skiaCacheBytes])[$toDouble]());
      }
    }
    getCanvas() {
      return dart.nullCheck(this[_surface]).getCanvas();
    }
    flush() {
      dart.nullCheck(this[_surface]).flush();
    }
    rasterizeToCanvas(bitmapSize, canvas, pictures) {
      if (bitmapSize == null) dart.nullFailed(I[261], 122, 45, "bitmapSize");
      if (canvas == null) dart.nullFailed(I[261], 122, 70, "canvas");
      if (pictures == null) dart.nullFailed(I[261], 123, 23, "pictures");
      return async.async(T$.void(), (function* rasterizeToCanvas() {
        let t$36522, t$36524, t$36523;
        let skCanvas = this.getCanvas();
        skCanvas.clear(C[835] || CT.C835);
        pictures[$forEach](dart.bind(skCanvas, 'drawPicture'));
        this.flush();
        if (dart.test(_engine.browserSupportsCreateImageBitmap)) {
          let bitmapSource = null;
          if (dart.test(this.useOffscreenCanvas)) {
            bitmapSource = T$3.JSObject()[_as](dart.nullCheck(this[_offscreenCanvas]));
          } else {
            bitmapSource = T$3.JSObject()[_as](dart.nullCheck(this[_canvasElement]));
          }
          let bitmap = (yield _engine.createImageBitmap(bitmapSource, (t$36523 = 0, t$36524 = dart.notNull(this[_pixelHeight]) - dart.notNull(bitmapSize.height), t$36522 = bitmapSize.width, dart.recordLiteral("4;height,width,x,y", 0, ["height", "width", "x", "y"], [bitmapSize.height, t$36522, t$36523, t$36524]))));
          canvas.render(bitmap);
        } else {
          let imageSource = null;
          if (dart.test(this.useOffscreenCanvas)) {
            imageSource = T$10.DomCanvasImageSource()[_as](dart.nullCheck(this[_offscreenCanvas]));
          } else {
            imageSource = T$10.DomCanvasImageSource()[_as](dart.nullCheck(this[_canvasElement]));
          }
          canvas.renderWithNoBitmapSupport(imageSource, this[_pixelHeight], bitmapSize);
        }
      }).bind(this));
    }
    acquireFrame(size) {
      if (size == null) dart.nullFailed(I[261], 159, 37, "size");
      let surface = this.createOrUpdateSurface(new _engine.BitmapSize.fromSize(size));
      let submitCallback = dart.fn((surfaceFrame, canvas) => {
        if (surfaceFrame == null) dart.nullFailed(I[261], 164, 23, "surfaceFrame");
        if (canvas == null) dart.nullFailed(I[261], 164, 46, "canvas");
        return this[_presentSurface]();
      }, T$10.SurfaceFrameAndCkCanvasTobool());
      return new _engine.SurfaceFrame.new(surface, submitCallback);
    }
    [_updateLogicalHtmlCanvasSize]() {
      let devicePixelRatio = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
      let logicalWidth = dart.notNull(this[_pixelWidth]) / dart.notNull(devicePixelRatio);
      let logicalHeight = dart.notNull(this[_pixelHeight]) / dart.notNull(devicePixelRatio);
      let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_canvasElement]), "style");
      _engine['DomCSSStyleDeclarationExtension|set#width'](style, dart.strSafe(logicalWidth) + "px");
      _engine['DomCSSStyleDeclarationExtension|set#height'](style, dart.strSafe(logicalHeight) + "px");
      this[_currentDevicePixelRatio] = devicePixelRatio;
    }
    positionToShowFrame(frameSize) {
      if (frameSize == null) dart.nullFailed(I[261], 192, 39, "frameSize");
      if (!dart.test(this.isDisplayCanvas)) dart.assertFailed("Should not position Surface if not used as a render canvas", I[261], 193, 12, "isDisplayCanvas");
      let devicePixelRatio = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
      let logicalHeight = dart.notNull(this[_pixelHeight]) / dart.notNull(devicePixelRatio);
      let logicalFrameHeight = dart.notNull(frameSize.height) / dart.notNull(devicePixelRatio);
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_canvasElement]), "style"), "translate(0px, " + dart.strSafe(logicalFrameHeight - logicalHeight) + "px)");
    }
    get usingSoftwareBackend() {
      return this[_glContext$] == null || this[_grContext] == null || _engine.webGLVersion === -1 || dart.test(_engine.configuration.canvasKitForceCpuOnly);
    }
    ensureSurface(size = C[842] || CT.C842) {
      if (size == null) dart.nullFailed(I[261], 219, 34, "size");
      if (this[_surface] != null) {
        return;
      }
      this.createOrUpdateSurface(size);
    }
    createOrUpdateSurface(size) {
      let t$36522, t$36522$, t$36522$0, t$36522$1, t$36522$2;
      if (size == null) dart.nullFailed(I[261], 232, 46, "size");
      if (dart.test(size.isEmpty)) {
        dart.throw(new _engine.CanvasKitError.new("Cannot create surfaces of empty size."));
      }
      if (!dart.test(this[_forceNewContext])) {
        let previousSurfaceSize = this[_currentSurfaceSize];
        if (previousSurfaceSize != null && size.width == previousSurfaceSize.width && size.height == previousSurfaceSize.height) {
          let devicePixelRatio = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
          if (dart.test(this.isDisplayCanvas) && devicePixelRatio != this[_currentDevicePixelRatio]) {
            this[_updateLogicalHtmlCanvasSize]();
          }
          return dart.nullCheck(this[_surface]);
        }
        let previousCanvasSize = this[_currentCanvasPhysicalSize];
        if (previousCanvasSize != null && (dart.notNull(size.width) > dart.notNull(previousCanvasSize.width) || dart.notNull(size.height) > dart.notNull(previousCanvasSize.height))) {
          let newSize = new _engine.BitmapSize.fromSize(size.toSize()['*'](1.4));
          t$36522 = this[_surface];
          t$36522 == null ? null : t$36522.dispose();
          this[_surface] = null;
          this[_pixelWidth] = newSize.width;
          this[_pixelHeight] = newSize.height;
          if (dart.test(this.useOffscreenCanvas)) {
            _engine['DomOffscreenCanvasExtension|set#width'](dart.nullCheck(this[_offscreenCanvas]), this[_pixelWidth][$toDouble]());
            _engine['DomOffscreenCanvasExtension|set#height'](dart.nullCheck(this[_offscreenCanvas]), this[_pixelHeight][$toDouble]());
          } else {
            _engine['DomCanvasElementExtension|set#width'](dart.nullCheck(this[_canvasElement]), this[_pixelWidth][$toDouble]());
            _engine['DomCanvasElementExtension|set#height'](dart.nullCheck(this[_canvasElement]), this[_pixelHeight][$toDouble]());
          }
          this[_currentCanvasPhysicalSize] = new _engine.BitmapSize.new(this[_pixelWidth], this[_pixelHeight]);
          if (dart.test(this.isDisplayCanvas)) {
            this[_updateLogicalHtmlCanvasSize]();
          }
        }
      }
      if (dart.test(this[_forceNewContext]) || this[_currentCanvasPhysicalSize] == null) {
        t$36522$ = this[_surface];
        t$36522$ == null ? null : t$36522$.dispose();
        this[_surface] = null;
        t$36522$0 = this[_grContext];
        t$36522$0 == null ? null : t$36522$0.releaseResourcesAndAbandonContext();
        t$36522$1 = this[_grContext];
        t$36522$1 == null ? null : t$36522$1.delete();
        this[_grContext] = null;
        this[_createNewCanvas](size);
        this[_currentCanvasPhysicalSize] = size;
      }
      this[_currentSurfaceSize] = size;
      t$36522$2 = this[_surface];
      t$36522$2 == null ? null : t$36522$2.dispose();
      this[_surface] = this[_createNewSurface](size);
      return dart.nullCheck(this[_surface]);
    }
    [_contextRestoredListener](event) {
      if (event == null) dart.nullFailed(I[261], 295, 44, "event");
      if (!dart.test(this[_contextLost])) dart.assertFailed("Received \"webglcontextrestored\" event but never received a \"webglcontextlost\" event.", I[261], 297, 9, "_contextLost");
      this[_contextLost] = false;
      _engine.EnginePlatformDispatcher.instance.invokeOnMetricsChanged();
      event.stopPropagation();
      event.preventDefault();
    }
    [_contextLostListener](event) {
      if (event == null) dart.nullFailed(I[261], 307, 40, "event");
      if (!(dart.equals(js_util.getProperty(T$10.DomEventTargetN(), event, "target"), this[_offscreenCanvas]) || dart.equals(js_util.getProperty(T$10.DomEventTargetN(), event, "target"), this[_canvasElement]))) dart.assertFailed("Received a context lost event for a disposed canvas", I[261], 308, 12, "event.target == _offscreenCanvas || event.target == _canvasElement");
      this[_contextLost] = true;
      this[_forceNewContext] = true;
      event.preventDefault();
    }
    [_createNewCanvas](physicalSize) {
      if (physicalSize == null) dart.nullFailed(I[261], 318, 36, "physicalSize");
      if (this[_offscreenCanvas] != null) {
        _engine['DomEventTargetExtension|removeEventListener'](dart.nullCheck(this[_offscreenCanvas]), "webglcontextrestored", this[_cachedContextRestoredListener], false);
        _engine['DomEventTargetExtension|removeEventListener'](dart.nullCheck(this[_offscreenCanvas]), "webglcontextlost", this[_cachedContextLostListener], false);
        this[_offscreenCanvas] = null;
        this[_cachedContextRestoredListener] = null;
        this[_cachedContextLostListener] = null;
      } else if (this[_canvasElement] != null) {
        _engine['DomEventTargetExtension|removeEventListener'](dart.nullCheck(this[_canvasElement]), "webglcontextrestored", this[_cachedContextRestoredListener], false);
        _engine['DomEventTargetExtension|removeEventListener'](dart.nullCheck(this[_canvasElement]), "webglcontextlost", this[_cachedContextLostListener], false);
        dart.nullCheck(this[_canvasElement]).remove();
        this[_canvasElement] = null;
        this[_cachedContextRestoredListener] = null;
        this[_cachedContextLostListener] = null;
      }
      this[_pixelWidth] = physicalSize.width;
      this[_pixelHeight] = physicalSize.height;
      let htmlCanvas = null;
      if (dart.test(this.useOffscreenCanvas)) {
        let offscreenCanvas = _engine.createDomOffscreenCanvas(this[_pixelWidth], this[_pixelHeight]);
        htmlCanvas = offscreenCanvas;
        this[_offscreenCanvas] = offscreenCanvas;
        this[_canvasElement] = null;
      } else {
        let canvas = _engine.createDomCanvasElement({width: this[_pixelWidth], height: this[_pixelHeight]});
        htmlCanvas = canvas;
        this[_canvasElement] = canvas;
        this[_offscreenCanvas] = null;
        if (dart.test(this.isDisplayCanvas)) {
          _engine['DomElementExtension|setAttribute'](dart.nullCheck(this[_canvasElement]), "aria-hidden", "true");
          _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_canvasElement]), "style"), "absolute");
          this.hostElement.append(dart.nullCheck(this[_canvasElement]));
          this[_updateLogicalHtmlCanvasSize]();
        }
      }
      this[_cachedContextRestoredListener] = _engine.createDomEventListener(dart.bind(this, _contextRestoredListener));
      this[_cachedContextLostListener] = _engine.createDomEventListener(dart.bind(this, _contextLostListener));
      _engine['DomEventTargetExtension|addEventListener'](htmlCanvas, "webglcontextlost", this[_cachedContextLostListener], false);
      _engine['DomEventTargetExtension|addEventListener'](htmlCanvas, "webglcontextrestored", this[_cachedContextRestoredListener], false);
      this[_forceNewContext] = false;
      this[_contextLost] = false;
      if (_engine.webGLVersion !== -1 && !dart.test(_engine.configuration.canvasKitForceCpuOnly)) {
        let glContext = 0;
        let options = _engine.SkWebGLContextOptions.new({antialias: 0.0, majorVersion: _engine.webGLVersion[$toDouble]()});
        if (dart.test(this.useOffscreenCanvas)) {
          glContext = _engine['CanvasKitExtension|GetOffscreenWebGLContext'](_engine.canvasKit, dart.nullCheck(this[_offscreenCanvas]), options)[$toInt]();
        } else {
          glContext = _engine['CanvasKitExtension|GetWebGLContext'](_engine.canvasKit, dart.nullCheck(this[_canvasElement]), options)[$toInt]();
        }
        this[_glContext$] = glContext;
        if (this[_glContext$] !== 0) {
          this[_grContext] = _engine['CanvasKitExtension|MakeGrContext'](_engine.canvasKit, glContext[$toDouble]());
          if (this[_grContext] == null) {
            dart.throw(new _engine.CanvasKitError.new("Failed to initialize CanvasKit. CanvasKit.MakeGrContext returned null."));
          }
          if (this[_sampleCount] === -1 || this[_stencilBits] === -1) {
            this[_initWebglParams]();
          }
          this[_syncCacheBytes]();
        }
      }
    }
    [_initWebglParams]() {
      let gl = null;
      if (dart.test(this.useOffscreenCanvas)) {
        gl = _engine['DomOffscreenCanvasExtension|getGlContext'](dart.nullCheck(this[_offscreenCanvas]), _engine.webGLVersion);
      } else {
        gl = _engine['DomCanvasElementExtension|getGlContext'](dart.nullCheck(this[_canvasElement]), _engine.webGLVersion);
      }
      this[_sampleCount] = _engine['WebGLContextExtension|getParameter'](gl, _engine['WebGLContextExtension|get#samples'](gl));
      this[_stencilBits] = _engine['WebGLContextExtension|getParameter'](gl, _engine['WebGLContextExtension|get#stencilBits'](gl));
    }
    [_createNewSurface](size) {
      if (size == null) dart.nullFailed(I[261], 449, 42, "size");
      if (!(this[_offscreenCanvas] != null || this[_canvasElement] != null)) dart.assertFailed(null, I[261], 450, 12, "_offscreenCanvas != null || _canvasElement != null");
      if (_engine.webGLVersion === -1) {
        return this[_makeSoftwareCanvasSurface]("WebGL support not detected");
      } else if (dart.test(_engine.configuration.canvasKitForceCpuOnly)) {
        return this[_makeSoftwareCanvasSurface]("CPU rendering forced by application");
      } else if (this[_glContext$] === 0) {
        return this[_makeSoftwareCanvasSurface]("Failed to initialize WebGL context");
      } else {
        let skSurface = _engine['CanvasKitExtension|MakeOnScreenGLSurface'](_engine.canvasKit, dart.nullCheck(this[_grContext]), size.width[$toDouble](), size.height[$toDouble](), dart.jsInteropNullCheck(dart.global.window.flutterCanvasKit.ColorSpace.SRGB), this[_sampleCount], this[_stencilBits]);
        if (skSurface == null) {
          return this[_makeSoftwareCanvasSurface]("Failed to initialize WebGL surface");
        }
        return new _engine.CkSurface.new(skSurface, this[_glContext$]);
      }
    }
    [_makeSoftwareCanvasSurface](reason) {
      if (reason == null) dart.nullFailed(I[261], 476, 47, "reason");
      if (!dart.test(_engine.Surface._didWarnAboutWebGlInitializationFailure)) {
        _engine.printWarning("WARNING: Falling back to CPU-only rendering. " + dart.str(reason) + ".");
        _engine.Surface._didWarnAboutWebGlInitializationFailure = true;
      }
      let surface = null;
      if (dart.test(this.useOffscreenCanvas)) {
        surface = T$10.SkSurface()[_as](_engine.canvasKit.MakeSWCanvasSurface(dart.nullCheck(this[_offscreenCanvas])));
      } else {
        surface = T$10.SkSurface()[_as](_engine.canvasKit.MakeSWCanvasSurface(dart.nullCheck(this[_canvasElement])));
      }
      return new _engine.CkSurface.new(surface, null);
    }
    [_presentSurface]() {
      dart.nullCheck(this[_surface]).flush();
      return true;
    }
    get isConnected() {
      return dart.nullCheck(_engine['DomCanvasElementExtension|get#isConnected'](dart.nullCheck(this[_canvasElement])));
    }
    initialize() {
      this.ensureSurface();
    }
    dispose() {
      let t$36522, t$36522$, t$36522$0;
      t$36522 = this[_offscreenCanvas];
      t$36522 == null ? null : _engine['DomEventTargetExtension|removeEventListener'](t$36522, "webglcontextlost", this[_cachedContextLostListener], false);
      t$36522$ = this[_offscreenCanvas];
      t$36522$ == null ? null : _engine['DomEventTargetExtension|removeEventListener'](t$36522$, "webglcontextrestored", this[_cachedContextRestoredListener], false);
      this[_cachedContextLostListener] = null;
      this[_cachedContextRestoredListener] = null;
      t$36522$0 = this[_surface];
      t$36522$0 == null ? null : t$36522$0.dispose();
    }
    static get offscreenCanvasSupported() {
      return dart.test(_engine.browserSupportsOffscreenCanvas) && !dart.test(_engine.isSafari);
    }
  };
  (_engine.Surface.new = function(opts) {
    let isDisplayCanvas = opts && 'isDisplayCanvas' in opts ? opts.isDisplayCanvas : false;
    if (isDisplayCanvas == null) dart.nullFailed(I[261], 40, 17, "isDisplayCanvas");
    this[_surface] = null;
    this[_forceNewContext] = true;
    this[_contextLost] = false;
    this[_cachedContextLostListener] = null;
    this[_cachedContextRestoredListener] = null;
    this[_grContext] = null;
    this[_glContext$] = null;
    this[_skiaCacheBytes] = null;
    this[_offscreenCanvas] = null;
    this[_canvasElement] = null;
    this[hostElement$] = _engine.createDomElement("flt-canvas-container");
    this[_pixelWidth] = -1;
    this[_pixelHeight] = -1;
    this[_currentDevicePixelRatio] = -1.0;
    this[_sampleCount] = -1;
    this[_stencilBits] = -1;
    this[_currentCanvasPhysicalSize] = null;
    this[_currentSurfaceSize] = null;
    this[isDisplayCanvas$] = isDisplayCanvas;
    this[useOffscreenCanvas] = dart.test(_engine.Surface.offscreenCanvasSupported) && !dart.test(isDisplayCanvas);
    ;
  }).prototype = _engine.Surface.prototype;
  dart.addRtiResources(_engine.Surface, ["_engine|Surface"]);
  dart.setMethodSignature(_engine.Surface, () => dart.global.Object.setPrototypeOf({
    setSkiaResourceCacheMaxBytes: T$.intTovoid(),
    [_syncCacheBytes]: T$.VoidTovoid(),
    getCanvas: T$10.VoidToCkCanvas(),
    flush: T$.VoidTovoid(),
    rasterizeToCanvas: T$10.BitmapSizeAndRenderCanvasAndListOfCkPictureToFutureOfvoid(),
    acquireFrame: T$10.SizeToSurfaceFrame(),
    [_updateLogicalHtmlCanvasSize]: T$.VoidTovoid(),
    positionToShowFrame: T$10.BitmapSizeTovoid(),
    ensureSurface: T$10.BitmapSizeTovoid$1(),
    createOrUpdateSurface: T$10.BitmapSizeToCkSurface(),
    [_contextRestoredListener]: T$10.DomEventTovoid(),
    [_contextLostListener]: T$10.DomEventTovoid(),
    [_createNewCanvas]: T$10.BitmapSizeTovoid(),
    [_initWebglParams]: T$.VoidTovoid(),
    [_createNewSurface]: T$10.BitmapSizeToCkSurface(),
    [_makeSoftwareCanvasSurface]: T$10.StringToCkSurface(),
    [_presentSurface]: T$.VoidTobool(),
    initialize: T$.VoidTovoid(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Surface))));
  dart.setGetterSignature(_engine.Surface, () => dart.global.Object.setPrototypeOf({
    debugForceNewContext: T$.bool(),
    debugContextLost: T$.bool(),
    debugOffscreenCanvas: T$10.DomOffscreenCanvasN(),
    usingSoftwareBackend: T$.bool(),
    isConnected: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Surface))));
  dart.setStaticGetterSignature(_engine.Surface, () => ['offscreenCanvasSupported']);
  dart.setLibraryUri(_engine.Surface, I[220]);
  dart.setFieldSignature(_engine.Surface, () => dart.global.Object.setPrototypeOf({
    [_surface]: {type: T$10.CkSurfaceN(), isConst: false, isFinal: false, libraryUri: I[220]},
    useOffscreenCanvas: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    isDisplayCanvas: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_forceNewContext]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_contextLost]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_cachedContextLostListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_cachedContextRestoredListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_grContext]: {type: T$10.SkGrContextN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_glContext$]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_skiaCacheBytes]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_offscreenCanvas]: {type: T$10.DomOffscreenCanvasN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_canvasElement]: {type: T$9.DomCanvasElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    hostElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_pixelWidth]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pixelHeight]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentDevicePixelRatio]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_sampleCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_stencilBits]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentCanvasPhysicalSize]: {type: T$9.BitmapSizeN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_currentSurfaceSize]: {type: T$9.BitmapSizeN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Surface))));
  dart.setStaticFieldSignature(_engine.Surface, () => ['_didWarnAboutWebGlInitializationFailure']);
  dart.defineLazy(_engine.Surface, {
    /*_engine.Surface._didWarnAboutWebGlInitializationFailure*/get _didWarnAboutWebGlInitializationFailure() {
      return false;
    },
    set _didWarnAboutWebGlInitializationFailure(value) {
      if (value == null) dart.nullFailed(I[261], 474, 15, "_didWarnAboutWebGlInitializationFailure");
    }
  }, false);
  var surface$ = dart.privateName(_engine, "CkSurface.surface");
  _engine.CkSurface = class CkSurface extends core.Object {
    get surface() {
      return this[surface$];
    }
    set surface(value) {
      super.surface = value;
    }
    static ['_#new#tearOff'](surface, _glContext) {
      if (surface == null) dart.nullFailed(I[261], 526, 18, "surface");
      return new _engine.CkSurface.new(surface, _glContext);
    }
    getCanvas() {
      if (!!dart.test(this[_isDisposed])) dart.assertFailed("Attempting to use the canvas of a disposed surface", I[261], 529, 12, "!_isDisposed");
      return new _engine.CkCanvas.new(T$9.SkCanvas()[_as](this.surface.getCanvas()));
    }
    flush() {
      this.surface.flush();
    }
    get context() {
      return this[_glContext$];
    }
    width() {
      return _engine['SkSurfaceExtension|width'](this.surface)[$ceil]();
    }
    height() {
      return _engine['SkSurfaceExtension|height'](this.surface)[$ceil]();
    }
    dispose() {
      if (dart.test(this[_isDisposed])) {
        return;
      }
      this.surface.dispose();
      this[_isDisposed] = true;
    }
  };
  (_engine.CkSurface.new = function(surface, _glContext) {
    if (surface == null) dart.nullFailed(I[261], 526, 18, "surface");
    this[_isDisposed] = false;
    this[surface$] = surface;
    this[_glContext$] = _glContext;
    ;
  }).prototype = _engine.CkSurface.prototype;
  dart.addRtiResources(_engine.CkSurface, ["_engine|CkSurface"]);
  dart.setMethodSignature(_engine.CkSurface, () => dart.global.Object.setPrototypeOf({
    getCanvas: T$10.VoidToCkCanvas(),
    flush: T$.VoidTovoid(),
    width: T$.VoidToint(),
    height: T$.VoidToint(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkSurface))));
  dart.setGetterSignature(_engine.CkSurface, () => dart.global.Object.setPrototypeOf({context: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkSurface))));
  dart.setLibraryUri(_engine.CkSurface, I[220]);
  dart.setFieldSignature(_engine.CkSurface, () => dart.global.Object.setPrototypeOf({
    surface: {type: T$10.SkSurface(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_glContext$]: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_isDisposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkSurface))));
  var skParagraphStyle = dart.privateName(_engine, "CkParagraphStyle.skParagraphStyle");
  var _textAlign = dart.privateName(_engine, "_textAlign");
  var _textDirection$ = dart.privateName(_engine, "_textDirection");
  var _fontWeight = dart.privateName(_engine, "_fontWeight");
  var _fontStyle = dart.privateName(_engine, "_fontStyle");
  var _maxLines = dart.privateName(_engine, "_maxLines");
  var _originalFontFamily = dart.privateName(_engine, "_originalFontFamily");
  var _effectiveFontFamily = dart.privateName(_engine, "_effectiveFontFamily");
  var _fontSize = dart.privateName(_engine, "_fontSize");
  var _height$0 = dart.privateName(_engine, "_height");
  var _textHeightBehavior = dart.privateName(_engine, "_textHeightBehavior");
  var _strutStyle = dart.privateName(_engine, "_strutStyle");
  var _ellipsis = dart.privateName(_engine, "_ellipsis");
  var _locale = dart.privateName(_engine, "_locale");
  var _fontFamily = dart.privateName(_engine, "_fontFamily");
  var _fontFamilyFallback = dart.privateName(_engine, "_fontFamilyFallback");
  var _leadingDistribution = dart.privateName(_engine, "_leadingDistribution");
  var _leading = dart.privateName(_engine, "_leading");
  var _forceStrutHeight = dart.privateName(_engine, "_forceStrutHeight");
  _engine.CkParagraphStyle = class CkParagraphStyle extends core.Object {
    get skParagraphStyle() {
      return this[skParagraphStyle];
    }
    set skParagraphStyle(value) {
      super.skParagraphStyle = value;
    }
    static ['_#new#tearOff'](opts) {
      let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      let maxLines = opts && 'maxLines' in opts ? opts.maxLines : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let textHeightBehavior = opts && 'textHeightBehavior' in opts ? opts.textHeightBehavior : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let strutStyle = opts && 'strutStyle' in opts ? opts.strutStyle : null;
      let ellipsis = opts && 'ellipsis' in opts ? opts.ellipsis : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      return new _engine.CkParagraphStyle.new({textAlign: textAlign, textDirection: textDirection, maxLines: maxLines, fontFamily: fontFamily, fontSize: fontSize, height: height, textHeightBehavior: textHeightBehavior, fontWeight: fontWeight, fontStyle: fontStyle, strutStyle: strutStyle, ellipsis: ellipsis, locale: locale});
    }
    static toSkTextStyleProperties(fontFamily, fontSize, height, fontWeight, fontStyle) {
      let skTextStyle = {};
      if (fontWeight != null || fontStyle != null) {
        skTextStyle.fontStyle = _engine.toSkFontStyle(fontWeight, fontStyle);
      }
      if (fontSize != null) {
        _engine['SkTextStylePropertiesExtension|set#fontSize'](skTextStyle, fontSize);
      }
      if (height != null) {
        _engine['SkTextStylePropertiesExtension|set#heightMultiplier'](skTextStyle, height);
      }
      _engine['SkTextStylePropertiesExtension|set#fontFamilies'](skTextStyle, _engine._computeCombinedFontFamilies(fontFamily));
      return skTextStyle;
    }
    static toSkStrutStyleProperties(value, paragraphHeightBehavior) {
      let t$36523, t$36522;
      if (value == null) dart.nullFailed(I[262], 104, 21, "value");
      let style = T$10.CkStrutStyle()[_as](value);
      let skStrutStyle = {};
      _engine['SkStrutStylePropertiesExtension|set#fontFamilies'](skStrutStyle, _engine._computeCombinedFontFamilies(style[_fontFamily], style[_fontFamilyFallback]));
      if (style[_fontSize] != null) {
        _engine['SkStrutStylePropertiesExtension|set#fontSize'](skStrutStyle, style[_fontSize]);
      }
      if (style[_height$0] != null) {
        _engine['SkStrutStylePropertiesExtension|set#heightMultiplier'](skStrutStyle, style[_height$0]);
      }
      let effectiveLeadingDistribution = (t$36522 = style[_leadingDistribution], t$36522 == null ? (t$36523 = paragraphHeightBehavior, t$36523 == null ? null : t$36523.leadingDistribution) : t$36522);
      switch (effectiveLeadingDistribution) {
        case void 0:
        case null:
          {
            break;
          }
        case C[782] || CT.C782:
          {
            _engine['SkStrutStylePropertiesExtension|set#halfLeading'](skStrutStyle, true);
            break;
          }
        case C[781] || CT.C781:
          {
            _engine['SkStrutStylePropertiesExtension|set#halfLeading'](skStrutStyle, false);
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
      if (style[_leading] != null) {
        _engine['SkStrutStylePropertiesExtension|set#leading'](skStrutStyle, style[_leading]);
      }
      if (style[_fontWeight] != null || style[_fontStyle] != null) {
        skStrutStyle.fontStyle = _engine.toSkFontStyle(style[_fontWeight], style[_fontStyle]);
      }
      if (style[_forceStrutHeight] != null) {
        _engine['SkStrutStylePropertiesExtension|set#forceStrutHeight'](skStrutStyle, style[_forceStrutHeight]);
      }
      _engine['SkStrutStylePropertiesExtension|set#strutEnabled'](skStrutStyle, true);
      return skStrutStyle;
    }
    static toSkParagraphStyle(textAlign, textDirection, maxLines, fontFamily, fontSize, height, textHeightBehavior, fontWeight, fontStyle, strutStyle, ellipsis, locale) {
      let properties = {};
      if (textAlign != null) {
        properties.textAlign = _engine.toSkTextAlign(textAlign);
      }
      if (textDirection != null) {
        properties.textDirection = _engine.toSkTextDirection(textDirection);
      }
      if (maxLines != null) {
        _engine['SkParagraphStylePropertiesExtension|set#maxLines'](properties, maxLines);
      }
      if (height != null) {
        _engine['SkParagraphStylePropertiesExtension|set#heightMultiplier'](properties, height);
      }
      if (textHeightBehavior != null) {
        properties.textHeightBehavior = _engine.toSkTextHeightBehavior(textHeightBehavior);
      }
      if (ellipsis != null) {
        _engine['SkParagraphStylePropertiesExtension|set#ellipsis'](properties, ellipsis);
      }
      if (strutStyle != null) {
        properties.strutStyle = _engine.CkParagraphStyle.toSkStrutStyleProperties(strutStyle, textHeightBehavior);
      }
      _engine['SkParagraphStylePropertiesExtension|set#replaceTabCharacters'](properties, true);
      properties.textStyle = _engine.CkParagraphStyle.toSkTextStyleProperties(fontFamily, fontSize, height, fontWeight, fontStyle);
      properties.applyRoundingHack = false;
      return T$10.SkParagraphStyle()[_as](_engine.canvasKit.ParagraphStyle(properties));
    }
    getTextStyle() {
      let t$36522;
      return new _engine.CkTextStyle.__({originalFontFamily: this[_originalFontFamily], effectiveFontFamily: this[_effectiveFontFamily], fontSize: this[_fontSize], height: this[_height$0], leadingDistribution: (t$36522 = this[_textHeightBehavior], t$36522 == null ? null : t$36522.leadingDistribution), fontWeight: this[_fontWeight], fontStyle: this[_fontStyle], color: null, decoration: null, decorationColor: null, decorationStyle: null, decorationThickness: null, textBaseline: null, originalFontFamilyFallback: null, effectiveFontFamilyFallback: null, letterSpacing: null, wordSpacing: null, locale: null, background: null, foreground: null, shadows: null, fontFeatures: null, fontVariations: null});
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$10.CkParagraphStyle()[_is](other) && other[_textAlign] == this[_textAlign] && other[_textDirection$] == this[_textDirection$] && dart.equals(other[_fontWeight], this[_fontWeight]) && other[_fontStyle] == this[_fontStyle] && other[_maxLines] == this[_maxLines] && other[_originalFontFamily] == this[_originalFontFamily] && other[_fontSize] == this[_fontSize] && other[_height$0] == this[_height$0] && dart.equals(other[_textHeightBehavior], this[_textHeightBehavior]) && dart.equals(other[_strutStyle], this[_strutStyle]) && other[_ellipsis] == this[_ellipsis] && dart.equals(other[_locale], this[_locale]);
    }
    get hashCode() {
      return core.Object.hash(this[_textAlign], this[_textDirection$], this[_fontWeight], this[_fontStyle], this[_maxLines], this[_originalFontFamily], this[_fontSize], this[_height$0], this[_textHeightBehavior], this[_strutStyle], this[_ellipsis], this[_locale]);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        let t$36522, t$36522$, t$36522$0, t$36522$1, t$36522$2, t$36522$3, t$36522$4, t$36522$5, t$36522$6;
        let fontSize = this[_fontSize];
        let height = this[_height$0];
        result = "ParagraphStyle(" + "textAlign: " + dart.str((t$36522 = this[_textAlign], t$36522 == null ? "unspecified" : t$36522)) + ", " + "textDirection: " + dart.str((t$36522$ = this[_textDirection$], t$36522$ == null ? "unspecified" : t$36522$)) + ", " + "fontWeight: " + dart.str((t$36522$0 = this[_fontWeight], t$36522$0 == null ? "unspecified" : t$36522$0)) + ", " + "fontStyle: " + dart.str((t$36522$1 = this[_fontStyle], t$36522$1 == null ? "unspecified" : t$36522$1)) + ", " + "maxLines: " + dart.str((t$36522$2 = this[_maxLines], t$36522$2 == null ? "unspecified" : t$36522$2)) + ", " + "textHeightBehavior: " + dart.str((t$36522$3 = this[_textHeightBehavior], t$36522$3 == null ? "unspecified" : t$36522$3)) + ", " + "fontFamily: " + dart.str((t$36522$4 = this[_originalFontFamily], t$36522$4 == null ? "unspecified" : t$36522$4)) + ", " + "fontSize: " + (fontSize != null ? fontSize[$toStringAsFixed](1) : "unspecified") + ", " + "height: " + (height != null ? height[$toStringAsFixed](1) + "x" : "unspecified") + ", " + "strutStyle: " + dart.str((t$36522$5 = this[_strutStyle], t$36522$5 == null ? "unspecified" : t$36522$5)) + ", " + "ellipsis: " + (this[_ellipsis] != null ? "\"" + dart.str(this[_ellipsis]) + "\"" : "unspecified") + ", " + "locale: " + dart.str((t$36522$6 = this[_locale], t$36522$6 == null ? "unspecified" : t$36522$6)) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[262], 278, 12, "() {\n      final double? fontSize = _fontSize;\n      final double? height = _height;\n      result = 'ParagraphStyle('\n          'textAlign: ${_textAlign ?? \"unspecified\"}, '\n          'textDirection: ${_textDirection ?? \"unspecified\"}, '\n          'fontWeight: ${_fontWeight ?? \"unspecified\"}, '\n          'fontStyle: ${_fontStyle ?? \"unspecified\"}, '\n          'maxLines: ${_maxLines ?? \"unspecified\"}, '\n          'textHeightBehavior: ${_textHeightBehavior ?? \"unspecified\"}, '\n          'fontFamily: ${_originalFontFamily ?? \"unspecified\"}, '\n          'fontSize: ${fontSize != null ? fontSize.toStringAsFixed(1) : \"unspecified\"}, '\n          'height: ${height != null ? \"${height.toStringAsFixed(1)}x\" : \"unspecified\"}, '\n          'strutStyle: ${_strutStyle ?? \"unspecified\"}, '\n          'ellipsis: ${_ellipsis != null ? '\"$_ellipsis\"' : \"unspecified\"}, '\n          'locale: ${_locale ?? \"unspecified\"}'\n          ')';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.CkParagraphStyle.new = function(opts) {
    let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
    let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
    let maxLines = opts && 'maxLines' in opts ? opts.maxLines : null;
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
    let height = opts && 'height' in opts ? opts.height : null;
    let textHeightBehavior = opts && 'textHeightBehavior' in opts ? opts.textHeightBehavior : null;
    let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
    let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
    let strutStyle = opts && 'strutStyle' in opts ? opts.strutStyle : null;
    let ellipsis = opts && 'ellipsis' in opts ? opts.ellipsis : null;
    let locale = opts && 'locale' in opts ? opts.locale : null;
    this[skParagraphStyle] = _engine.CkParagraphStyle.toSkParagraphStyle(textAlign, textDirection, maxLines, _engine._computeEffectiveFontFamily(fontFamily), fontSize, height === 0 ? null : height, textHeightBehavior, fontWeight, fontStyle, strutStyle, ellipsis, locale);
    this[_textAlign] = textAlign;
    this[_textDirection$] = textDirection;
    this[_fontWeight] = fontWeight;
    this[_fontStyle] = fontStyle;
    this[_maxLines] = maxLines;
    this[_originalFontFamily] = fontFamily;
    this[_effectiveFontFamily] = _engine._computeEffectiveFontFamily(fontFamily);
    this[_fontSize] = fontSize;
    this[_height$0] = height === 0 ? null : height;
    this[_textHeightBehavior] = textHeightBehavior;
    this[_strutStyle] = strutStyle;
    this[_ellipsis] = ellipsis;
    this[_locale] = locale;
    ;
  }).prototype = _engine.CkParagraphStyle.prototype;
  dart.addRtiResources(_engine.CkParagraphStyle, ["_engine|CkParagraphStyle", "ui|ParagraphStyle"]);
  dart.setMethodSignature(_engine.CkParagraphStyle, () => dart.global.Object.setPrototypeOf({getTextStyle: T$10.VoidToCkTextStyle()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkParagraphStyle))));
  dart.setStaticMethodSignature(_engine.CkParagraphStyle, () => ['toSkTextStyleProperties', 'toSkStrutStyleProperties', 'toSkParagraphStyle']);
  dart.setLibraryUri(_engine.CkParagraphStyle, I[220]);
  dart.setFieldSignature(_engine.CkParagraphStyle, () => dart.global.Object.setPrototypeOf({
    skParagraphStyle: {type: T$10.SkParagraphStyle(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_textAlign]: {type: T$10.TextAlignN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_textDirection$]: {type: T$10.TextDirectionN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_fontWeight]: {type: T$10.FontWeightN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_fontStyle]: {type: T$10.FontStyleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_maxLines]: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_originalFontFamily]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_effectiveFontFamily]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fontSize]: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_height$0]: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_textHeightBehavior]: {type: T$10.TextHeightBehaviorN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_strutStyle]: {type: T$10.StrutStyleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_ellipsis]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_locale]: {type: T$10.LocaleN(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkParagraphStyle))));
  dart.defineExtensionMethods(_engine.CkParagraphStyle, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.CkParagraphStyle, ['hashCode']);
  var color$1 = dart.privateName(_engine, "CkTextStyle.color");
  var decoration$ = dart.privateName(_engine, "CkTextStyle.decoration");
  var decorationColor$ = dart.privateName(_engine, "CkTextStyle.decorationColor");
  var decorationStyle$ = dart.privateName(_engine, "CkTextStyle.decorationStyle");
  var decorationThickness$ = dart.privateName(_engine, "CkTextStyle.decorationThickness");
  var fontWeight$ = dart.privateName(_engine, "CkTextStyle.fontWeight");
  var fontStyle$ = dart.privateName(_engine, "CkTextStyle.fontStyle");
  var textBaseline$ = dart.privateName(_engine, "CkTextStyle.textBaseline");
  var originalFontFamily$ = dart.privateName(_engine, "CkTextStyle.originalFontFamily");
  var effectiveFontFamily$ = dart.privateName(_engine, "CkTextStyle.effectiveFontFamily");
  var originalFontFamilyFallback$ = dart.privateName(_engine, "CkTextStyle.originalFontFamilyFallback");
  var effectiveFontFamilyFallback$ = dart.privateName(_engine, "CkTextStyle.effectiveFontFamilyFallback");
  var fontSize$ = dart.privateName(_engine, "CkTextStyle.fontSize");
  var letterSpacing$ = dart.privateName(_engine, "CkTextStyle.letterSpacing");
  var wordSpacing$ = dart.privateName(_engine, "CkTextStyle.wordSpacing");
  var height$2 = dart.privateName(_engine, "CkTextStyle.height");
  var leadingDistribution$0 = dart.privateName(_engine, "CkTextStyle.leadingDistribution");
  var locale$0 = dart.privateName(_engine, "CkTextStyle.locale");
  var background$ = dart.privateName(_engine, "CkTextStyle.background");
  var foreground$ = dart.privateName(_engine, "CkTextStyle.foreground");
  var shadows$ = dart.privateName(_engine, "CkTextStyle.shadows");
  var fontFeatures$ = dart.privateName(_engine, "CkTextStyle.fontFeatures");
  var fontVariations$ = dart.privateName(_engine, "CkTextStyle.fontVariations");
  var __CkTextStyle_combinedFontFamilies = dart.privateName(_engine, "_#CkTextStyle#combinedFontFamilies");
  var __CkTextStyle_combinedFontFamilies_isSet = dart.privateName(_engine, "_#CkTextStyle#combinedFontFamilies#isSet");
  var __CkTextStyle_skTextStyle = dart.privateName(_engine, "_#CkTextStyle#skTextStyle");
  var __CkTextStyle_skTextStyle_isSet = dart.privateName(_engine, "_#CkTextStyle#skTextStyle#isSet");
  _engine.CkTextStyle = class CkTextStyle extends core.Object {
    get color() {
      return this[color$1];
    }
    set color(value) {
      super.color = value;
    }
    get decoration() {
      return this[decoration$];
    }
    set decoration(value) {
      super.decoration = value;
    }
    get decorationColor() {
      return this[decorationColor$];
    }
    set decorationColor(value) {
      super.decorationColor = value;
    }
    get decorationStyle() {
      return this[decorationStyle$];
    }
    set decorationStyle(value) {
      super.decorationStyle = value;
    }
    get decorationThickness() {
      return this[decorationThickness$];
    }
    set decorationThickness(value) {
      super.decorationThickness = value;
    }
    get fontWeight() {
      return this[fontWeight$];
    }
    set fontWeight(value) {
      super.fontWeight = value;
    }
    get fontStyle() {
      return this[fontStyle$];
    }
    set fontStyle(value) {
      super.fontStyle = value;
    }
    get textBaseline() {
      return this[textBaseline$];
    }
    set textBaseline(value) {
      super.textBaseline = value;
    }
    get originalFontFamily() {
      return this[originalFontFamily$];
    }
    set originalFontFamily(value) {
      super.originalFontFamily = value;
    }
    get effectiveFontFamily() {
      return this[effectiveFontFamily$];
    }
    set effectiveFontFamily(value) {
      super.effectiveFontFamily = value;
    }
    get originalFontFamilyFallback() {
      return this[originalFontFamilyFallback$];
    }
    set originalFontFamilyFallback(value) {
      super.originalFontFamilyFallback = value;
    }
    get effectiveFontFamilyFallback() {
      return this[effectiveFontFamilyFallback$];
    }
    set effectiveFontFamilyFallback(value) {
      super.effectiveFontFamilyFallback = value;
    }
    get fontSize() {
      return this[fontSize$];
    }
    set fontSize(value) {
      super.fontSize = value;
    }
    get letterSpacing() {
      return this[letterSpacing$];
    }
    set letterSpacing(value) {
      super.letterSpacing = value;
    }
    get wordSpacing() {
      return this[wordSpacing$];
    }
    set wordSpacing(value) {
      super.wordSpacing = value;
    }
    get height() {
      return this[height$2];
    }
    set height(value) {
      super.height = value;
    }
    get leadingDistribution() {
      return this[leadingDistribution$0];
    }
    set leadingDistribution(value) {
      super.leadingDistribution = value;
    }
    get locale() {
      return this[locale$0];
    }
    set locale(value) {
      super.locale = value;
    }
    get background() {
      return this[background$];
    }
    set background(value) {
      super.background = value;
    }
    get foreground() {
      return this[foreground$];
    }
    set foreground(value) {
      super.foreground = value;
    }
    get shadows() {
      return this[shadows$];
    }
    set shadows(value) {
      super.shadows = value;
    }
    get fontFeatures() {
      return this[fontFeatures$];
    }
    set fontFeatures(value) {
      super.fontFeatures = value;
    }
    get fontVariations() {
      return this[fontVariations$];
    }
    set fontVariations(value) {
      super.fontVariations = value;
    }
    static new(opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      if (!(color == null || foreground == null)) dart.assertFailed("Cannot provide both a color and a foreground\nThe color argument is just a shorthand for \"foreground: Paint()..color = color\".", I[262], 327, 7, "color == null || foreground == null");
      return new _engine.CkTextStyle.__({color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, originalFontFamily: fontFamily, effectiveFontFamily: _engine._computeEffectiveFontFamily(fontFamily), originalFontFamilyFallback: fontFamilyFallback, effectiveFontFamilyFallback: dart.test(ui_web.debugEmulateFlutterTesterEnvironment) ? null : fontFamilyFallback, fontSize: fontSize, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, leadingDistribution: leadingDistribution, locale: locale, background: background, foreground: foreground, shadows: shadows, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
    static ['_#new#tearOff'](opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      return _engine.CkTextStyle.new({color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, leadingDistribution: leadingDistribution, locale: locale, background: background, foreground: foreground, shadows: shadows, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
    static ['_#_#tearOff'](opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let originalFontFamily = opts && 'originalFontFamily' in opts ? opts.originalFontFamily : null;
      let effectiveFontFamily = opts && 'effectiveFontFamily' in opts ? opts.effectiveFontFamily : null;
      let originalFontFamilyFallback = opts && 'originalFontFamilyFallback' in opts ? opts.originalFontFamilyFallback : null;
      let effectiveFontFamilyFallback = opts && 'effectiveFontFamilyFallback' in opts ? opts.effectiveFontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      return new _engine.CkTextStyle.__({color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, originalFontFamily: originalFontFamily, effectiveFontFamily: effectiveFontFamily, originalFontFamilyFallback: originalFontFamilyFallback, effectiveFontFamilyFallback: effectiveFontFamilyFallback, fontSize: fontSize, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, leadingDistribution: leadingDistribution, locale: locale, background: background, foreground: foreground, shadows: shadows, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
    mergeWith(other) {
      let t$36522, t$36522$, t$36522$0, t$36522$1, t$36522$2, t$36522$3, t$36522$4, t$36522$5, t$36522$6, t$36522$7, t$36522$8, t$36522$9, t$36522$10, t$36522$11, t$36522$12, t$36522$13, t$36522$14, t$36522$15, t$36522$16, t$36522$17, t$36522$18, t$36522$19, t$36522$20;
      if (other == null) dart.nullFailed(I[262], 412, 37, "other");
      let textHeight = other.height === 0 ? null : (t$36522 = other.height, t$36522 == null ? this.height : t$36522);
      return new _engine.CkTextStyle.__({color: (t$36522$ = other.color, t$36522$ == null ? this.color : t$36522$), decoration: (t$36522$0 = other.decoration, t$36522$0 == null ? this.decoration : t$36522$0), decorationColor: (t$36522$1 = other.decorationColor, t$36522$1 == null ? this.decorationColor : t$36522$1), decorationStyle: (t$36522$2 = other.decorationStyle, t$36522$2 == null ? this.decorationStyle : t$36522$2), decorationThickness: (t$36522$3 = other.decorationThickness, t$36522$3 == null ? this.decorationThickness : t$36522$3), fontWeight: (t$36522$4 = other.fontWeight, t$36522$4 == null ? this.fontWeight : t$36522$4), fontStyle: (t$36522$5 = other.fontStyle, t$36522$5 == null ? this.fontStyle : t$36522$5), textBaseline: (t$36522$6 = other.textBaseline, t$36522$6 == null ? this.textBaseline : t$36522$6), originalFontFamily: (t$36522$7 = other.originalFontFamily, t$36522$7 == null ? this.originalFontFamily : t$36522$7), effectiveFontFamily: (t$36522$8 = other.effectiveFontFamily, t$36522$8 == null ? this.effectiveFontFamily : t$36522$8), originalFontFamilyFallback: (t$36522$9 = other.originalFontFamilyFallback, t$36522$9 == null ? this.originalFontFamilyFallback : t$36522$9), effectiveFontFamilyFallback: (t$36522$10 = other.effectiveFontFamilyFallback, t$36522$10 == null ? this.effectiveFontFamilyFallback : t$36522$10), fontSize: (t$36522$11 = other.fontSize, t$36522$11 == null ? this.fontSize : t$36522$11), letterSpacing: (t$36522$12 = other.letterSpacing, t$36522$12 == null ? this.letterSpacing : t$36522$12), wordSpacing: (t$36522$13 = other.wordSpacing, t$36522$13 == null ? this.wordSpacing : t$36522$13), height: textHeight, leadingDistribution: (t$36522$14 = other.leadingDistribution, t$36522$14 == null ? this.leadingDistribution : t$36522$14), locale: (t$36522$15 = other.locale, t$36522$15 == null ? this.locale : t$36522$15), background: (t$36522$16 = other.background, t$36522$16 == null ? this.background : t$36522$16), foreground: (t$36522$17 = other.foreground, t$36522$17 == null ? this.foreground : t$36522$17), shadows: (t$36522$18 = other.shadows, t$36522$18 == null ? this.shadows : t$36522$18), fontFeatures: (t$36522$19 = other.fontFeatures, t$36522$19 == null ? this.fontFeatures : t$36522$19), fontVariations: (t$36522$20 = other.fontVariations, t$36522$20 == null ? this.fontVariations : t$36522$20)});
    }
    get combinedFontFamilies() {
      let t$36523;
      if (!dart.test(this[__CkTextStyle_combinedFontFamilies_isSet])) {
        let t$36522 = _engine._computeCombinedFontFamilies(this.effectiveFontFamily, this.effectiveFontFamilyFallback);
        if (dart.test(this[__CkTextStyle_combinedFontFamilies_isSet])) dart.throw(new _internal.LateError.fieldADI("combinedFontFamilies"));
        this[__CkTextStyle_combinedFontFamilies] = t$36522;
        this[__CkTextStyle_combinedFontFamilies_isSet] = true;
      }
      t$36523 = this[__CkTextStyle_combinedFontFamilies];
      return t$36523;
    }
    get skTextStyle() {
      let t$36524;
      if (!dart.test(this[__CkTextStyle_skTextStyle_isSet])) {
        let t$36523 = dart.fn(() => {
          let color = this.color;
          let decoration = this.decoration;
          let decorationColor = this.decorationColor;
          let decorationStyle = this.decorationStyle;
          let decorationThickness = this.decorationThickness;
          let fontWeight = this.fontWeight;
          let fontStyle = this.fontStyle;
          let textBaseline = this.textBaseline;
          let fontSize = this.fontSize;
          let letterSpacing = this.letterSpacing;
          let wordSpacing = this.wordSpacing;
          let height = this.height;
          let locale = this.locale;
          let background = this.background;
          let foreground = this.foreground;
          let shadows = this.shadows;
          let fontFeatures = this.fontFeatures;
          let fontVariations = this.fontVariations;
          let properties = {};
          if (background != null) {
            _engine['SkTextStylePropertiesExtension|set#backgroundColor'](properties, _engine.makeFreshSkColor(background.color));
          }
          if (color != null) {
            _engine['SkTextStylePropertiesExtension|set#color'](properties, _engine.makeFreshSkColor(color));
          }
          if (decoration != null) {
            let decorationValue = _engine['CanvasKitExtension|get#NoDecoration'](_engine.canvasKit)[$toInt]();
            if (dart.test(decoration.contains(ui.TextDecoration.underline))) {
              decorationValue = (decorationValue | _engine['CanvasKitExtension|get#UnderlineDecoration'](_engine.canvasKit)[$toInt]()) >>> 0;
            }
            if (dart.test(decoration.contains(ui.TextDecoration.overline))) {
              decorationValue = (decorationValue | _engine['CanvasKitExtension|get#OverlineDecoration'](_engine.canvasKit)[$toInt]()) >>> 0;
            }
            if (dart.test(decoration.contains(ui.TextDecoration.lineThrough))) {
              decorationValue = (decorationValue | _engine['CanvasKitExtension|get#LineThroughDecoration'](_engine.canvasKit)[$toInt]()) >>> 0;
            }
            _engine['SkTextStylePropertiesExtension|set#decoration'](properties, decorationValue);
          }
          if (decorationThickness != null) {
            _engine['SkTextStylePropertiesExtension|set#decorationThickness'](properties, decorationThickness);
          }
          if (decorationColor != null) {
            _engine['SkTextStylePropertiesExtension|set#decorationColor'](properties, _engine.makeFreshSkColor(decorationColor));
          }
          if (decorationStyle != null) {
            properties.decorationStyle = _engine.toSkTextDecorationStyle(decorationStyle);
          }
          if (textBaseline != null) {
            properties.textBaseline = _engine.toSkTextBaseline(textBaseline);
          }
          if (fontSize != null) {
            _engine['SkTextStylePropertiesExtension|set#fontSize'](properties, fontSize);
          }
          if (letterSpacing != null) {
            _engine['SkTextStylePropertiesExtension|set#letterSpacing'](properties, letterSpacing);
          }
          if (wordSpacing != null) {
            _engine['SkTextStylePropertiesExtension|set#wordSpacing'](properties, wordSpacing);
          }
          if (height != null) {
            _engine['SkTextStylePropertiesExtension|set#heightMultiplier'](properties, height);
          }
          switch (this.leadingDistribution) {
            case void 0:
            case null:
              {
                break;
              }
            case C[782] || CT.C782:
              {
                _engine['SkTextStylePropertiesExtension|set#halfLeading'](properties, true);
                break;
              }
            case C[781] || CT.C781:
              {
                _engine['SkTextStylePropertiesExtension|set#halfLeading'](properties, false);
                break;
              }
            default:
              dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
          }
          if (locale != null) {
            _engine['SkTextStylePropertiesExtension|set#locale'](properties, locale.toLanguageTag());
          }
          _engine['SkTextStylePropertiesExtension|set#fontFamilies'](properties, this.combinedFontFamilies);
          if (fontWeight != null || fontStyle != null) {
            properties.fontStyle = _engine.toSkFontStyle(fontWeight, fontStyle);
          }
          if (foreground != null) {
            _engine['SkTextStylePropertiesExtension|set#foregroundColor'](properties, _engine.makeFreshSkColor(foreground.color));
          }
          if (shadows != null) {
            let ckShadows = G$.JSArrayOfSkTextShadow().of([]);
            for (let shadow of shadows) {
              let ckShadow = {};
              _engine['SkTextShadowExtension|set#color'](ckShadow, _engine.makeFreshSkColor(shadow.color));
              _engine['SkTextShadowExtension|set#offset'](ckShadow, _engine.toSkPoint(shadow.offset));
              _engine['SkTextShadowExtension|set#blurRadius'](ckShadow, shadow.blurRadius);
              ckShadows[$add](ckShadow);
            }
            _engine['SkTextStylePropertiesExtension|set#shadows'](properties, ckShadows);
          }
          if (fontFeatures != null) {
            let skFontFeatures = G$.JSArrayOfSkFontFeature().of([]);
            for (let fontFeature of fontFeatures) {
              let skFontFeature = {};
              _engine['SkFontFeatureExtension|set#name'](skFontFeature, fontFeature.feature);
              _engine['SkFontFeatureExtension|set#value'](skFontFeature, fontFeature.value);
              skFontFeatures[$add](skFontFeature);
            }
            _engine['SkTextStylePropertiesExtension|set#fontFeatures'](properties, skFontFeatures);
          }
          if (fontVariations != null) {
            let skFontVariations = G$.JSArrayOfSkFontVariation().of([]);
            for (let fontVariation of fontVariations) {
              let skFontVariation = {};
              _engine['SkFontVariationExtension|set#axis'](skFontVariation, fontVariation.axis);
              _engine['SkFontVariationExtension|set#value'](skFontVariation, fontVariation.value);
              skFontVariations[$add](skFontVariation);
            }
            _engine['SkTextStylePropertiesExtension|set#fontVariations'](properties, skFontVariations);
          }
          return T$10.SkTextStyle()[_as](_engine.canvasKit.TextStyle(properties));
        }, T$10.VoidToSkTextStyle())();
        if (dart.test(this[__CkTextStyle_skTextStyle_isSet])) dart.throw(new _internal.LateError.fieldADI("skTextStyle"));
        this[__CkTextStyle_skTextStyle] = t$36523;
        this[__CkTextStyle_skTextStyle_isSet] = true;
      }
      t$36524 = this[__CkTextStyle_skTextStyle];
      return t$36524;
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      return T$10.CkTextStyle()[_is](other) && dart.equals(other.color, this.color) && dart.equals(other.decoration, this.decoration) && dart.equals(other.decorationColor, this.decorationColor) && other.decorationStyle == this.decorationStyle && dart.equals(other.fontWeight, this.fontWeight) && other.fontStyle == this.fontStyle && other.textBaseline == this.textBaseline && other.leadingDistribution == this.leadingDistribution && other.originalFontFamily == this.originalFontFamily && other.fontSize == this.fontSize && other.letterSpacing == this.letterSpacing && other.wordSpacing == this.wordSpacing && other.height == this.height && other.decorationThickness == this.decorationThickness && dart.equals(other.locale, this.locale) && dart.equals(other.background, this.background) && dart.equals(other.foreground, this.foreground) && dart.test(_engine.listEquals(T$9.Shadow(), other.shadows, this.shadows)) && dart.test(_engine.listEquals(T$.String(), other.originalFontFamilyFallback, this.originalFontFamilyFallback)) && dart.test(_engine.listEquals(T$9.FontFeature(), other.fontFeatures, this.fontFeatures)) && dart.test(_engine.listEquals(T$9.FontVariation(), other.fontVariations, this.fontVariations));
    }
    get hashCode() {
      let shadows = this.shadows;
      let fontFeatures = this.fontFeatures;
      let fontVariations = this.fontVariations;
      let fontFamilyFallback = this.originalFontFamilyFallback;
      return core.Object.hash(this.color, this.decoration, this.decorationColor, this.decorationStyle, this.fontWeight, this.fontStyle, this.textBaseline, this.leadingDistribution, this.originalFontFamily, fontFamilyFallback == null ? null : core.Object.hashAll(fontFamilyFallback), this.fontSize, this.letterSpacing, this.wordSpacing, this.height, this.locale, this.background, this.foreground, shadows == null ? null : core.Object.hashAll(shadows), this.decorationThickness, core.Object.hash(fontFeatures == null ? null : core.Object.hashAll(fontFeatures), fontVariations == null ? null : core.Object.hashAll(fontVariations)));
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        let t$36524, t$36524$, t$36524$0, t$36524$1, t$36524$2, t$36524$3, t$36524$4, t$36524$5, t$36524$6, t$36524$7, t$36524$8, t$36524$9, t$36524$10, t$36524$11, t$36524$12, t$36524$13;
        let fontFamilyFallback = this.originalFontFamilyFallback;
        let fontSize = this.fontSize;
        let height = this.height;
        result = "TextStyle(" + "color: " + dart.str((t$36524 = this.color, t$36524 == null ? "unspecified" : t$36524)) + ", " + "decoration: " + dart.str((t$36524$ = this.decoration, t$36524$ == null ? "unspecified" : t$36524$)) + ", " + "decorationColor: " + dart.str((t$36524$0 = this.decorationColor, t$36524$0 == null ? "unspecified" : t$36524$0)) + ", " + "decorationStyle: " + dart.str((t$36524$1 = this.decorationStyle, t$36524$1 == null ? "unspecified" : t$36524$1)) + ", " + "decorationThickness: " + dart.str((t$36524$2 = this.decorationThickness, t$36524$2 == null ? "unspecified" : t$36524$2)) + ", " + "fontWeight: " + dart.str((t$36524$3 = this.fontWeight, t$36524$3 == null ? "unspecified" : t$36524$3)) + ", " + "fontStyle: " + dart.str((t$36524$4 = this.fontStyle, t$36524$4 == null ? "unspecified" : t$36524$4)) + ", " + "textBaseline: " + dart.str((t$36524$5 = this.textBaseline, t$36524$5 == null ? "unspecified" : t$36524$5)) + ", " + "fontFamily: " + dart.str((t$36524$6 = this.originalFontFamily, t$36524$6 == null ? "unspecified" : t$36524$6)) + ", " + "fontFamilyFallback: " + dart.str(fontFamilyFallback != null && dart.test(fontFamilyFallback[$isNotEmpty]) ? fontFamilyFallback : "unspecified") + ", " + "fontSize: " + (fontSize != null ? fontSize[$toStringAsFixed](1) : "unspecified") + ", " + "letterSpacing: " + (this.letterSpacing != null ? dart.str(this.letterSpacing) + "x" : "unspecified") + ", " + "wordSpacing: " + (this.wordSpacing != null ? dart.str(this.wordSpacing) + "x" : "unspecified") + ", " + "height: " + (height != null ? height[$toStringAsFixed](1) + "x" : "unspecified") + ", " + "leadingDistribution: " + dart.str((t$36524$7 = this.leadingDistribution, t$36524$7 == null ? "unspecified" : t$36524$7)) + ", " + "locale: " + dart.str((t$36524$8 = this.locale, t$36524$8 == null ? "unspecified" : t$36524$8)) + ", " + "background: " + dart.str((t$36524$9 = this.background, t$36524$9 == null ? "unspecified" : t$36524$9)) + ", " + "foreground: " + dart.str((t$36524$10 = this.foreground, t$36524$10 == null ? "unspecified" : t$36524$10)) + ", " + "shadows: " + dart.str((t$36524$11 = this.shadows, t$36524$11 == null ? "unspecified" : t$36524$11)) + ", " + "fontFeatures: " + dart.str((t$36524$12 = this.fontFeatures, t$36524$12 == null ? "unspecified" : t$36524$12)) + ", " + "fontVariations: " + dart.str((t$36524$13 = this.fontVariations, t$36524$13 == null ? "unspecified" : t$36524$13)) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[262], 654, 12, "() {\n      final List<String>? fontFamilyFallback = originalFontFamilyFallback;\n      final double? fontSize = this.fontSize;\n      final double? height = this.height;\n      result = 'TextStyle('\n          'color: ${color ?? \"unspecified\"}, '\n          'decoration: ${decoration ?? \"unspecified\"}, '\n          'decorationColor: ${decorationColor ?? \"unspecified\"}, '\n          'decorationStyle: ${decorationStyle ?? \"unspecified\"}, '\n          'decorationThickness: ${decorationThickness ?? \"unspecified\"}, '\n          'fontWeight: ${fontWeight ?? \"unspecified\"}, '\n          'fontStyle: ${fontStyle ?? \"unspecified\"}, '\n          'textBaseline: ${textBaseline ?? \"unspecified\"}, '\n          'fontFamily: ${originalFontFamily ?? \"unspecified\"}, '\n          'fontFamilyFallback: ${fontFamilyFallback != null && fontFamilyFallback.isNotEmpty ? fontFamilyFallback : \"unspecified\"}, '\n          'fontSize: ${fontSize != null ? fontSize.toStringAsFixed(1) : \"unspecified\"}, '\n          'letterSpacing: ${letterSpacing != null ? \"${letterSpacing}x\" : \"unspecified\"}, '\n          'wordSpacing: ${wordSpacing != null ? \"${wordSpacing}x\" : \"unspecified\"}, '\n          'height: ${height != null ? \"${height.toStringAsFixed(1)}x\" : \"unspecified\"}, '\n          'leadingDistribution: ${leadingDistribution ?? \"unspecified\"}, '\n          'locale: ${locale ?? \"unspecified\"}, '\n          'background: ${background ?? \"unspecified\"}, '\n          'foreground: ${foreground ?? \"unspecified\"}, '\n          'shadows: ${shadows ?? \"unspecified\"}, '\n          'fontFeatures: ${fontFeatures ?? \"unspecified\"}, '\n          'fontVariations: ${fontVariations ?? \"unspecified\"}'\n          ')';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.CkTextStyle.__ = function(opts) {
    let color = opts && 'color' in opts ? opts.color : null;
    let decoration = opts && 'decoration' in opts ? opts.decoration : null;
    let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
    let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
    let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
    let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
    let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
    let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
    let originalFontFamily = opts && 'originalFontFamily' in opts ? opts.originalFontFamily : null;
    let effectiveFontFamily = opts && 'effectiveFontFamily' in opts ? opts.effectiveFontFamily : null;
    let originalFontFamilyFallback = opts && 'originalFontFamilyFallback' in opts ? opts.originalFontFamilyFallback : null;
    let effectiveFontFamilyFallback = opts && 'effectiveFontFamilyFallback' in opts ? opts.effectiveFontFamilyFallback : null;
    let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
    let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
    let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
    let height = opts && 'height' in opts ? opts.height : null;
    let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
    let locale = opts && 'locale' in opts ? opts.locale : null;
    let background = opts && 'background' in opts ? opts.background : null;
    let foreground = opts && 'foreground' in opts ? opts.foreground : null;
    let shadows = opts && 'shadows' in opts ? opts.shadows : null;
    let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
    let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
    this[__CkTextStyle_combinedFontFamilies] = null;
    this[__CkTextStyle_combinedFontFamilies_isSet] = false;
    this[__CkTextStyle_skTextStyle] = null;
    this[__CkTextStyle_skTextStyle_isSet] = false;
    this[color$1] = color;
    this[decoration$] = decoration;
    this[decorationColor$] = decorationColor;
    this[decorationStyle$] = decorationStyle;
    this[decorationThickness$] = decorationThickness;
    this[fontWeight$] = fontWeight;
    this[fontStyle$] = fontStyle;
    this[textBaseline$] = textBaseline;
    this[originalFontFamily$] = originalFontFamily;
    this[effectiveFontFamily$] = effectiveFontFamily;
    this[originalFontFamilyFallback$] = originalFontFamilyFallback;
    this[effectiveFontFamilyFallback$] = effectiveFontFamilyFallback;
    this[fontSize$] = fontSize;
    this[letterSpacing$] = letterSpacing;
    this[wordSpacing$] = wordSpacing;
    this[height$2] = height;
    this[leadingDistribution$0] = leadingDistribution;
    this[locale$0] = locale;
    this[background$] = background;
    this[foreground$] = foreground;
    this[shadows$] = shadows;
    this[fontFeatures$] = fontFeatures;
    this[fontVariations$] = fontVariations;
    ;
  }).prototype = _engine.CkTextStyle.prototype;
  dart.addRtiResources(_engine.CkTextStyle, ["_engine|CkTextStyle", "ui|TextStyle"]);
  dart.setMethodSignature(_engine.CkTextStyle, () => dart.global.Object.setPrototypeOf({mergeWith: T$10.CkTextStyleToCkTextStyle()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkTextStyle))));
  dart.setStaticMethodSignature(_engine.CkTextStyle, () => ['new']);
  dart.setGetterSignature(_engine.CkTextStyle, () => dart.global.Object.setPrototypeOf({
    combinedFontFamilies: T$0.ListOfString(),
    skTextStyle: T$10.SkTextStyle()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkTextStyle))));
  dart.setLibraryUri(_engine.CkTextStyle, I[220]);
  dart.setFieldSignature(_engine.CkTextStyle, () => dart.global.Object.setPrototypeOf({
    color: {type: T$10.ColorN(), isConst: false, isFinal: true, libraryUri: I[198]},
    decoration: {type: T$10.TextDecorationN(), isConst: false, isFinal: true, libraryUri: I[198]},
    decorationColor: {type: T$10.ColorN(), isConst: false, isFinal: true, libraryUri: I[198]},
    decorationStyle: {type: T$10.TextDecorationStyleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    decorationThickness: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontWeight: {type: T$10.FontWeightN(), isConst: false, isFinal: true, libraryUri: I[198]},
    fontStyle: {type: T$10.FontStyleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    textBaseline: {type: T$10.TextBaselineN(), isConst: false, isFinal: true, libraryUri: I[198]},
    originalFontFamily: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    effectiveFontFamily: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    originalFontFamilyFallback: {type: T$.ListNOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    effectiveFontFamilyFallback: {type: T$.ListNOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontSize: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    letterSpacing: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    wordSpacing: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    leadingDistribution: {type: T$10.TextLeadingDistributionN(), isConst: false, isFinal: true, libraryUri: I[198]},
    locale: {type: T$10.LocaleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    background: {type: T$10.CkPaintN(), isConst: false, isFinal: true, libraryUri: I[220]},
    foreground: {type: T$10.CkPaintN(), isConst: false, isFinal: true, libraryUri: I[220]},
    shadows: {type: T$10.ListNOfShadow(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontFeatures: {type: T$10.ListNOfFontFeature(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontVariations: {type: T$10.ListNOfFontVariation(), isConst: false, isFinal: true, libraryUri: I[11]},
    [__CkTextStyle_combinedFontFamilies]: {type: T$.ListNOfString(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CkTextStyle_combinedFontFamilies_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CkTextStyle_skTextStyle]: {type: T$10.SkTextStyleN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkTextStyle_skTextStyle_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkTextStyle))));
  dart.defineExtensionMethods(_engine.CkTextStyle, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.CkTextStyle, ['hashCode']);
  _engine.CkStrutStyle = class CkStrutStyle extends core.Object {
    static ['_#new#tearOff'](opts) {
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let leading = opts && 'leading' in opts ? opts.leading : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let forceStrutHeight = opts && 'forceStrutHeight' in opts ? opts.forceStrutHeight : null;
      return new _engine.CkStrutStyle.new({fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, height: height, leadingDistribution: leadingDistribution, leading: leading, fontWeight: fontWeight, fontStyle: fontStyle, forceStrutHeight: forceStrutHeight});
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$10.CkStrutStyle()[_is](other) && other[_fontFamily] == this[_fontFamily] && other[_fontSize] == this[_fontSize] && other[_height$0] == this[_height$0] && other[_leading] == this[_leading] && other[_leadingDistribution] == this[_leadingDistribution] && dart.equals(other[_fontWeight], this[_fontWeight]) && other[_fontStyle] == this[_fontStyle] && other[_forceStrutHeight] == this[_forceStrutHeight] && dart.test(_engine.listEquals(T$.String(), other[_fontFamilyFallback], this[_fontFamilyFallback]));
    }
    get hashCode() {
      let fontFamilyFallback = this[_fontFamilyFallback];
      return core.Object.hash(this[_fontFamily], fontFamilyFallback != null ? core.Object.hashAll(fontFamilyFallback) : null, this[_fontSize], this[_height$0], this[_leading], this[_leadingDistribution], this[_fontWeight], this[_fontStyle], this[_forceStrutHeight]);
    }
  };
  (_engine.CkStrutStyle.new = function(opts) {
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
    let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
    let height = opts && 'height' in opts ? opts.height : null;
    let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
    let leading = opts && 'leading' in opts ? opts.leading : null;
    let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
    let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
    let forceStrutHeight = opts && 'forceStrutHeight' in opts ? opts.forceStrutHeight : null;
    this[_fontFamily] = _engine._computeEffectiveFontFamily(fontFamily);
    this[_fontFamilyFallback] = dart.test(ui_web.debugEmulateFlutterTesterEnvironment) ? null : fontFamilyFallback;
    this[_fontSize] = fontSize;
    this[_height$0] = height === 0 ? null : height;
    this[_leadingDistribution] = leadingDistribution;
    this[_leading] = leading;
    this[_fontWeight] = fontWeight;
    this[_fontStyle] = fontStyle;
    this[_forceStrutHeight] = forceStrutHeight;
    ;
  }).prototype = _engine.CkStrutStyle.prototype;
  dart.addRtiResources(_engine.CkStrutStyle, ["_engine|CkStrutStyle", "ui|StrutStyle"]);
  dart.setLibraryUri(_engine.CkStrutStyle, I[220]);
  dart.setFieldSignature(_engine.CkStrutStyle, () => dart.global.Object.setPrototypeOf({
    [_fontFamily]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fontFamilyFallback]: {type: T$.ListNOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fontSize]: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_height$0]: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_leading]: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fontWeight]: {type: T$10.FontWeightN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_fontStyle]: {type: T$10.FontStyleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_forceStrutHeight]: {type: T$.boolN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_leadingDistribution]: {type: T$10.TextLeadingDistributionN(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkStrutStyle))));
  dart.defineExtensionMethods(_engine.CkStrutStyle, ['_equals']);
  dart.defineExtensionAccessors(_engine.CkStrutStyle, ['hashCode']);
  var __CkParagraph__ref = dart.privateName(_engine, "_#CkParagraph#_ref");
  var __CkParagraph__ref_isSet = dart.privateName(_engine, "_#CkParagraph#_ref#isSet");
  var _lastLayoutConstraints = dart.privateName(_engine, "_lastLayoutConstraints");
  var _alphabeticBaseline = dart.privateName(_engine, "_alphabeticBaseline");
  var _didExceedMaxLines = dart.privateName(_engine, "_didExceedMaxLines");
  var _ideographicBaseline = dart.privateName(_engine, "_ideographicBaseline");
  var _longestLine = dart.privateName(_engine, "_longestLine");
  var _maxIntrinsicWidth = dart.privateName(_engine, "_maxIntrinsicWidth");
  var _minIntrinsicWidth = dart.privateName(_engine, "_minIntrinsicWidth");
  var _width$0 = dart.privateName(_engine, "_width");
  var __CkParagraph__boxesForPlaceholders = dart.privateName(_engine, "_#CkParagraph#_boxesForPlaceholders");
  var __CkParagraph__boxesForPlaceholders_isSet = dart.privateName(_engine, "_#CkParagraph#_boxesForPlaceholders#isSet");
  var _paragraphStyle$ = dart.privateName(_engine, "_paragraphStyle");
  var _boxesForPlaceholders = dart.privateName(_engine, "_boxesForPlaceholders");
  _engine.CkParagraph = class CkParagraph extends core.Object {
    static ['_#new#tearOff'](skParagraph, _paragraphStyle) {
      if (skParagraph == null) dart.nullFailed(I[262], 766, 27, "skParagraph");
      if (_paragraphStyle == null) dart.nullFailed(I[262], 766, 45, "_paragraphStyle");
      return new _engine.CkParagraph.new(skParagraph, _paragraphStyle);
    }
    get [_ref]() {
      let t$36524;
      return dart.test(this[__CkParagraph__ref_isSet]) ? (t$36524 = this[__CkParagraph__ref], t$36524) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[262], 770, 37, "_ref#param");
      if (dart.test(this[__CkParagraph__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkParagraph__ref_isSet] = true;
        this[__CkParagraph__ref] = _ref$35param;
      }
    }
    get skiaObject() {
      return this[_ref].nativeObject;
    }
    get alphabeticBaseline() {
      return this[_alphabeticBaseline];
    }
    get didExceedMaxLines() {
      return this[_didExceedMaxLines];
    }
    get height() {
      return this[_height$0];
    }
    get ideographicBaseline() {
      return this[_ideographicBaseline];
    }
    get longestLine() {
      return this[_longestLine];
    }
    get maxIntrinsicWidth() {
      return this[_maxIntrinsicWidth];
    }
    get minIntrinsicWidth() {
      return this[_minIntrinsicWidth];
    }
    get width() {
      return this[_width$0];
    }
    getBoxesForPlaceholders() {
      return this[_boxesForPlaceholders];
    }
    get [_boxesForPlaceholders]() {
      let t$36524;
      return dart.test(this[__CkParagraph__boxesForPlaceholders_isSet]) ? (t$36524 = this[__CkParagraph__boxesForPlaceholders], t$36524) : dart.throw(new _internal.LateError.fieldNI("_boxesForPlaceholders"));
    }
    set [_boxesForPlaceholders](_boxesForPlaceholders$35param) {
      if (_boxesForPlaceholders$35param == null) dart.nullFailed(I[262], 821, 25, "_boxesForPlaceholders#param");
      this[__CkParagraph__boxesForPlaceholders_isSet] = true;
      this[__CkParagraph__boxesForPlaceholders] = _boxesForPlaceholders$35param;
    }
    getBoxesForRange(start, end, opts) {
      if (start == null) dart.nullFailed(I[262], 825, 9, "start");
      if (end == null) dart.nullFailed(I[262], 826, 9, "end");
      let boxHeightStyle = opts && 'boxHeightStyle' in opts ? opts.boxHeightStyle : C[791] || CT.C791;
      if (boxHeightStyle == null) dart.nullFailed(I[262], 827, 23, "boxHeightStyle");
      let boxWidthStyle = opts && 'boxWidthStyle' in opts ? opts.boxWidthStyle : C[798] || CT.C798;
      if (boxWidthStyle == null) dart.nullFailed(I[262], 828, 22, "boxWidthStyle");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 830, 12, "!_disposed");
      if (dart.notNull(start) < 0 || dart.notNull(end) < 0) {
        return C[843] || CT.C843;
      }
      let skRects = _engine['SkParagraphExtension|getRectsForRange'](this.skiaObject, start[$toDouble](), end[$toDouble](), _engine.toSkRectHeightStyle(boxHeightStyle), _engine.toSkRectWidthStyle(boxWidthStyle));
      return this.skRectsToTextBoxes(skRects);
    }
    skRectsToTextBoxes(skRects) {
      if (skRects == null) dart.nullFailed(I[262], 845, 65, "skRects");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 846, 12, "!_disposed");
      let result = G$.JSArrayOfTextBox().of([]);
      for (let i = 0; i < dart.notNull(skRects[$length]); i = i + 1) {
        let skRect = skRects[$_get](i);
        let rect = _engine['SkRectWithDirectionExtension|get#rect'](skRect);
        let skTextDirection = _engine['SkTextDirectionExtension|get#value'](js_util.getProperty(T$10.SkTextDirection(), skRect, "dir"))[$toInt]();
        result[$add](new ui.TextBox.fromLTRBD(rect[$_get](0), rect[$_get](1), rect[$_get](2), rect[$_get](3), ui.TextDirection.values[$_get](skTextDirection)));
      }
      return result;
    }
    getPositionForOffset(offset) {
      if (offset == null) dart.nullFailed(I[262], 866, 50, "offset");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 867, 12, "!_disposed");
      let positionWithAffinity = _engine['SkParagraphExtension|getGlyphPositionAtCoordinate'](this.skiaObject, offset.dx, offset.dy);
      return _engine.fromPositionWithAffinity(positionWithAffinity);
    }
    getClosestGlyphInfoForOffset(offset) {
      if (offset == null) dart.nullFailed(I[262], 876, 56, "offset");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 877, 12, "!_disposed");
      return _engine['SkParagraphExtension|getClosestGlyphInfoAt'](this.skiaObject, offset.dx, offset.dy);
    }
    getGlyphInfoAt(codeUnitOffset) {
      if (codeUnitOffset == null) dart.nullFailed(I[262], 882, 36, "codeUnitOffset");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 883, 12, "!_disposed");
      return _engine['SkParagraphExtension|getGlyphInfoAt'](this.skiaObject, codeUnitOffset[$toDouble]());
    }
    getWordBoundary(position) {
      if (position == null) dart.nullFailed(I[262], 888, 48, "position");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 889, 12, "!_disposed");
      let characterPosition = null;
      switch (position.affinity) {
        case C[787] || CT.C787:
          {
            characterPosition = dart.notNull(position.offset) - 1;
            break;
          }
        case C[788] || CT.C788:
          {
            characterPosition = position.offset;
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
      let skRange = _engine['SkParagraphExtension|getWordBoundary'](this.skiaObject, characterPosition[$toDouble]());
      return new ui.TextRange.new({start: _engine['SkTextRangeExtension|get#start'](skRange)[$toInt](), end: _engine['SkTextRangeExtension|get#end'](skRange)[$toInt]()});
    }
    layout(constraints) {
      if (constraints == null) dart.nullFailed(I[262], 902, 39, "constraints");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 903, 12, "!_disposed");
      if (this[_lastLayoutConstraints] == constraints.width) {
        return;
      }
      this[_lastLayoutConstraints] = constraints.width;
      try {
        let paragraph = this.skiaObject;
        _engine['SkParagraphExtension|layout'](paragraph, constraints.width);
        this[_alphabeticBaseline] = _engine['SkParagraphExtension|getAlphabeticBaseline'](paragraph);
        this[_didExceedMaxLines] = _engine['SkParagraphExtension|didExceedMaxLines'](paragraph);
        this[_height$0] = _engine['SkParagraphExtension|getHeight'](paragraph);
        this[_ideographicBaseline] = _engine['SkParagraphExtension|getIdeographicBaseline'](paragraph);
        this[_longestLine] = _engine['SkParagraphExtension|getLongestLine'](paragraph);
        this[_maxIntrinsicWidth] = _engine['SkParagraphExtension|getMaxIntrinsicWidth'](paragraph);
        this[_minIntrinsicWidth] = _engine['SkParagraphExtension|getMinIntrinsicWidth'](paragraph);
        this[_width$0] = _engine['SkParagraphExtension|getMaxWidth'](paragraph);
        this[_boxesForPlaceholders] = this.skRectsToTextBoxes(_engine['SkParagraphExtension|getRectsForPlaceholders'](paragraph));
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
          _engine.printWarning("CanvasKit threw an exception while laying " + "out the paragraph. The font was \"" + dart.str(this[_paragraphStyle$][_originalFontFamily]) + "\". " + "Exception:\n" + dart.str(e));
          dart.rethrow(t$36$35e);
        } else
          throw t$36$35e;
      }
    }
    getLineBoundary(position) {
      if (position == null) dart.nullFailed(I[262], 936, 48, "position");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 937, 12, "!_disposed");
      let metrics = _engine['SkParagraphExtension|getLineMetrics'](this.skiaObject);
      let offset = position.offset;
      for (let metric of metrics) {
        if (dart.notNull(offset) >= dart.notNull(_engine['SkLineMetricsExtension|get#startIndex'](metric)) && dart.notNull(offset) <= dart.notNull(_engine['SkLineMetricsExtension|get#endIndex'](metric))) {
          return new ui.TextRange.new({start: _engine['SkLineMetricsExtension|get#startIndex'](metric)[$toInt](), end: _engine['SkLineMetricsExtension|get#endIndex'](metric)[$toInt]()});
        }
      }
      return ui.TextRange.empty;
    }
    computeLineMetrics() {
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 950, 12, "!_disposed");
      let skLineMetrics = _engine['SkParagraphExtension|getLineMetrics'](this.skiaObject);
      let result = G$.JSArrayOfLineMetrics().of([]);
      for (let metric of skLineMetrics) {
        result[$add](new _engine.CkLineMetrics.__(metric));
      }
      return result;
    }
    getLineMetricsAt(lineNumber) {
      if (lineNumber == null) dart.nullFailed(I[262], 960, 40, "lineNumber");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 961, 12, "!_disposed");
      let metrics = _engine['SkParagraphExtension|getLineMetricsAt'](this.skiaObject, lineNumber[$toDouble]());
      return metrics == null ? null : new _engine.CkLineMetrics.__(metrics);
    }
    get numberOfLines() {
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 968, 12, "!_disposed");
      return _engine['SkParagraphExtension|getNumberOfLines'](this.skiaObject)[$toInt]();
    }
    getLineNumberAt(codeUnitOffset) {
      if (codeUnitOffset == null) dart.nullFailed(I[262], 973, 28, "codeUnitOffset");
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 974, 12, "!_disposed");
      let lineNumber = _engine['SkParagraphExtension|getLineNumberAt'](this.skiaObject, codeUnitOffset[$toDouble]())[$toInt]();
      return lineNumber >= 0 ? lineNumber : null;
    }
    dispose() {
      if (!!dart.test(this[_disposed])) dart.assertFailed("Paragraph has been disposed.", I[262], 983, 12, "!_disposed");
      this[_ref].dispose();
      this[_disposed] = true;
    }
    get debugDisposed() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_disposed];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[262], 991, 12, "() {\n      result = _disposed;\n      return true;\n    }()");
      if (result != null) {
        return dart.nullCheck(result);
      }
      dart.throw(new core.StateError.new("Paragraph.debugDisposed is only available when asserts are enabled."));
    }
  };
  (_engine.CkParagraph.new = function(skParagraph, _paragraphStyle) {
    if (skParagraph == null) dart.nullFailed(I[262], 766, 27, "skParagraph");
    if (_paragraphStyle == null) dart.nullFailed(I[262], 766, 45, "_paragraphStyle");
    this[__CkParagraph__ref] = null;
    this[__CkParagraph__ref_isSet] = false;
    this[_lastLayoutConstraints] = -1 / 0;
    this[_alphabeticBaseline] = 0.0;
    this[_didExceedMaxLines] = false;
    this[_height$0] = 0.0;
    this[_ideographicBaseline] = 0.0;
    this[_longestLine] = 0.0;
    this[_maxIntrinsicWidth] = 0.0;
    this[_minIntrinsicWidth] = 0.0;
    this[_width$0] = 0.0;
    this[__CkParagraph__boxesForPlaceholders] = null;
    this[__CkParagraph__boxesForPlaceholders_isSet] = false;
    this[_disposed] = false;
    this[_paragraphStyle$] = _paragraphStyle;
    this[_ref] = new (G$.UniqueRefOfSkParagraph()).new(this, skParagraph, "Paragraph");
  }).prototype = _engine.CkParagraph.prototype;
  dart.addRtiResources(_engine.CkParagraph, ["_engine|CkParagraph", "ui|Paragraph"]);
  dart.setMethodSignature(_engine.CkParagraph, () => dart.global.Object.setPrototypeOf({
    getBoxesForPlaceholders: T$10.VoidToListOfTextBox(),
    getBoxesForRange: T$10.intAndint__ToListOfTextBox(),
    skRectsToTextBoxes: T$10.ListOfSkRectWithDirectionToListOfTextBox(),
    getPositionForOffset: T$10.OffsetToTextPosition(),
    getClosestGlyphInfoForOffset: T$10.OffsetToGlyphInfoN(),
    getGlyphInfoAt: T$10.intToGlyphInfoN(),
    getWordBoundary: T$10.TextPositionToTextRange(),
    layout: T$10.ParagraphConstraintsTovoid(),
    getLineBoundary: T$10.TextPositionToTextRange(),
    computeLineMetrics: T$10.VoidToListOfLineMetrics(),
    getLineMetricsAt: T$10.intToLineMetricsN(),
    getLineNumberAt: T$10.intTointN(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkParagraph))));
  dart.setGetterSignature(_engine.CkParagraph, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkParagraph(),
    skiaObject: T$10.SkParagraph(),
    alphabeticBaseline: T$.double(),
    didExceedMaxLines: T$.bool(),
    height: T$.double(),
    ideographicBaseline: T$.double(),
    longestLine: T$.double(),
    maxIntrinsicWidth: T$.double(),
    minIntrinsicWidth: T$.double(),
    width: T$.double(),
    [_boxesForPlaceholders]: T$10.ListOfTextBox(),
    numberOfLines: T$.int(),
    debugDisposed: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkParagraph))));
  dart.setSetterSignature(_engine.CkParagraph, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkParagraph(),
    [_boxesForPlaceholders]: T$10.ListOfTextBox()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkParagraph))));
  dart.setLibraryUri(_engine.CkParagraph, I[220]);
  dart.setFieldSignature(_engine.CkParagraph, () => dart.global.Object.setPrototypeOf({
    [__CkParagraph__ref]: {type: T$10.UniqueRefNOfSkParagraph(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkParagraph__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lastLayoutConstraints]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_paragraphStyle$]: {type: T$10.CkParagraphStyle(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_alphabeticBaseline]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_didExceedMaxLines]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_height$0]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_ideographicBaseline]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_longestLine]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_maxIntrinsicWidth]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_minIntrinsicWidth]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_width$0]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CkParagraph__boxesForPlaceholders]: {type: T$10.ListNOfTextBox(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CkParagraph__boxesForPlaceholders_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_disposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkParagraph))));
  var skLineMetrics$ = dart.privateName(_engine, "CkLineMetrics.skLineMetrics");
  _engine.CkLineMetrics = class CkLineMetrics extends core.Object {
    get skLineMetrics() {
      return this[skLineMetrics$];
    }
    set skLineMetrics(value) {
      super.skLineMetrics = value;
    }
    static ['_#_#tearOff'](skLineMetrics) {
      if (skLineMetrics == null) dart.nullFailed(I[262], 1005, 24, "skLineMetrics");
      return new _engine.CkLineMetrics.__(skLineMetrics);
    }
    get ascent() {
      return _engine['SkLineMetricsExtension|get#ascent'](this.skLineMetrics);
    }
    get descent() {
      return _engine['SkLineMetricsExtension|get#descent'](this.skLineMetrics);
    }
    get unscaledAscent() {
      return _engine['SkLineMetricsExtension|get#ascent'](this.skLineMetrics);
    }
    get hardBreak() {
      return _engine['SkLineMetricsExtension|get#isHardBreak'](this.skLineMetrics);
    }
    get baseline() {
      return _engine['SkLineMetricsExtension|get#baseline'](this.skLineMetrics);
    }
    get height() {
      return (dart.notNull(_engine['SkLineMetricsExtension|get#ascent'](this.skLineMetrics)) + dart.notNull(_engine['SkLineMetricsExtension|get#descent'](this.skLineMetrics)))[$round]()[$toDouble]();
    }
    get left() {
      return _engine['SkLineMetricsExtension|get#left'](this.skLineMetrics);
    }
    get width() {
      return _engine['SkLineMetricsExtension|get#width'](this.skLineMetrics);
    }
    get lineNumber() {
      return _engine['SkLineMetricsExtension|get#lineNumber'](this.skLineMetrics)[$toInt]();
    }
  };
  (_engine.CkLineMetrics.__ = function(skLineMetrics) {
    if (skLineMetrics == null) dart.nullFailed(I[262], 1005, 24, "skLineMetrics");
    this[skLineMetrics$] = skLineMetrics;
    ;
  }).prototype = _engine.CkLineMetrics.prototype;
  dart.addRtiResources(_engine.CkLineMetrics, ["_engine|CkLineMetrics", "ui|LineMetrics"]);
  dart.setGetterSignature(_engine.CkLineMetrics, () => dart.global.Object.setPrototypeOf({
    ascent: T$.double(),
    descent: T$.double(),
    unscaledAscent: T$.double(),
    hardBreak: T$.bool(),
    baseline: T$.double(),
    height: T$.double(),
    left: T$.double(),
    width: T$.double(),
    lineNumber: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkLineMetrics))));
  dart.setLibraryUri(_engine.CkLineMetrics, I[220]);
  dart.setFieldSignature(_engine.CkLineMetrics, () => dart.global.Object.setPrototypeOf({skLineMetrics: {type: T$10.SkLineMetrics(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkLineMetrics))));
  var _placeholderCount = dart.privateName(_engine, "_placeholderCount");
  var _placeholderScales = dart.privateName(_engine, "_placeholderScales");
  var _styleStack = dart.privateName(_engine, "_styleStack");
  var _paragraphBuilder = dart.privateName(_engine, "_paragraphBuilder");
  var _addPlaceholder = dart.privateName(_engine, "_addPlaceholder");
  var _peekStyle = dart.privateName(_engine, "_peekStyle");
  var _buildSkParagraph = dart.privateName(_engine, "_buildSkParagraph");
  _engine.CkParagraphBuilder = class CkParagraphBuilder extends core.Object {
    static ['_#new#tearOff'](style) {
      if (style == null) dart.nullFailed(I[262], 1040, 40, "style");
      return new _engine.CkParagraphBuilder.new(style);
    }
    addPlaceholder(width, height, alignment, opts) {
      let t$36525, t$36525$;
      if (width == null) dart.nullFailed(I[262], 1060, 12, "width");
      if (height == null) dart.nullFailed(I[262], 1061, 12, "height");
      if (alignment == null) dart.nullFailed(I[262], 1062, 29, "alignment");
      let scale = opts && 'scale' in opts ? opts.scale : 1;
      if (scale == null) dart.nullFailed(I[262], 1063, 12, "scale");
      let baselineOffset = opts && 'baselineOffset' in opts ? opts.baselineOffset : null;
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (!(!(alignment == ui.PlaceholderAlignment.aboveBaseline || alignment == ui.PlaceholderAlignment.belowBaseline || alignment == ui.PlaceholderAlignment.baseline) || baseline != null)) dart.assertFailed(null, I[262], 1068, 12, "!(alignment == ui.PlaceholderAlignment.aboveBaseline ||\n            alignment == ui.PlaceholderAlignment.belowBaseline ||\n            alignment == ui.PlaceholderAlignment.baseline) || baseline != null");
      this[_placeholderCount] = dart.notNull(this[_placeholderCount]) + 1;
      this[_placeholderScales][$add](scale);
      let placeholderStyle = _engine.CkParagraphBuilder.toSkPlaceholderStyle(dart.notNull(width) * dart.notNull(scale), dart.notNull(height) * dart.notNull(scale), alignment, dart.notNull((t$36525 = baselineOffset, t$36525 == null ? height : t$36525)) * dart.notNull(scale), (t$36525$ = baseline, t$36525$ == null ? ui.TextBaseline.alphabetic : t$36525$));
      this[_addPlaceholder](placeholderStyle);
    }
    [_addPlaceholder](placeholderStyle) {
      if (placeholderStyle == null) dart.nullFailed(I[262], 1084, 48, "placeholderStyle");
      _engine['SkParagraphBuilderExtension|addPlaceholder'](this[_paragraphBuilder], placeholderStyle.width, placeholderStyle.height, placeholderStyle.alignment, placeholderStyle.baseline, placeholderStyle.offset);
    }
    static toSkPlaceholderStyle(width, height, alignment, baselineOffset, baseline) {
      if (width == null) dart.nullFailed(I[262], 1095, 12, "width");
      if (height == null) dart.nullFailed(I[262], 1096, 12, "height");
      if (alignment == null) dart.nullFailed(I[262], 1097, 29, "alignment");
      if (baselineOffset == null) dart.nullFailed(I[262], 1098, 12, "baselineOffset");
      if (baseline == null) dart.nullFailed(I[262], 1099, 21, "baseline");
      let properties = new _engine._CkParagraphPlaceholder.new({width: width, height: height, alignment: _engine.toSkPlaceholderAlignment(alignment), offset: baselineOffset, baseline: _engine.toSkTextBaseline(baseline)});
      return properties;
    }
    addText(text) {
      if (text == null) dart.nullFailed(I[262], 1112, 23, "text");
      let fontFamilies = G.JSArrayOfString().of([]);
      let style = this[_peekStyle]();
      if (style.effectiveFontFamily != null) {
        fontFamilies[$add](dart.nullCheck(style.effectiveFontFamily));
      }
      if (style.effectiveFontFamilyFallback != null) {
        fontFamilies[$addAll](dart.nullCheck(style.effectiveFontFamilyFallback));
      }
      dart.nullCheck(_engine.renderer.fontCollection.fontFallbackManager).ensureFontsSupportText(text, fontFamilies);
      _engine['SkParagraphBuilderExtension|addText'](this[_paragraphBuilder], text);
    }
    build() {
      let builtParagraph = this[_buildSkParagraph]();
      return new _engine.CkParagraph.new(builtParagraph, this[_style$0]);
    }
    [_buildSkParagraph]() {
      if (dart.test(_engine._ckRequiresClientICU)) {
        _engine.injectClientICU(this[_paragraphBuilder]);
      }
      let result = T$10.SkParagraph()[_as](this[_paragraphBuilder].build());
      this[_paragraphBuilder].delete();
      return result;
    }
    get placeholderCount() {
      return this[_placeholderCount];
    }
    get placeholderScales() {
      return this[_placeholderScales];
    }
    pop() {
      if (dart.notNull(this[_styleStack][$length]) <= 1) {
        if (!dart.test(dart.fn(() => {
          _engine.printWarning("Cannot pop text style in ParagraphBuilder. Already popped all text styles from the style stack.");
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[262], 1151, 14, "() {\n        printWarning(\n          'Cannot pop text style in ParagraphBuilder. '\n          'Already popped all text styles from the style stack.',\n        );\n        return true;\n      }()");
        return;
      }
      this[_styleStack][$removeLast]();
      this[_paragraphBuilder].pop();
    }
    [_peekStyle]() {
      if (!dart.test(this[_styleStack][$isNotEmpty])) dart.assertFailed(null, I[262], 1165, 12, "_styleStack.isNotEmpty");
      return this[_styleStack][$last];
    }
    pushStyle(style) {
      let t$36525, t$36525$, t$36525$0, t$36525$1, t$36525$2;
      if (style == null) dart.nullFailed(I[262], 1181, 31, "style");
      let baseStyle = this[_peekStyle]();
      let ckStyle = T$10.CkTextStyle()[_as](style);
      let skStyle = baseStyle.mergeWith(ckStyle);
      this[_styleStack][$add](skStyle);
      if (skStyle.foreground != null || skStyle.background != null) {
        let foreground = (t$36525 = skStyle.foreground, t$36525 == null ? null : t$36525.skiaObject);
        if (foreground == null) {
          _engine['SkPaintExtension|setColorInt'](_engine.CkParagraphBuilder._defaultTextForeground, (t$36525$0 = (t$36525$ = skStyle.color, t$36525$ == null ? null : t$36525$.value), t$36525$0 == null ? 4278190080 : t$36525$0));
          foreground = _engine.CkParagraphBuilder._defaultTextForeground;
        }
        let background = (t$36525$2 = (t$36525$1 = skStyle.background, t$36525$1 == null ? null : t$36525$1.skiaObject), t$36525$2 == null ? _engine.CkParagraphBuilder._defaultTextBackground : t$36525$2);
        this[_paragraphBuilder].pushPaintStyle(skStyle.skTextStyle, foreground, background);
      } else {
        this[_paragraphBuilder].pushStyle(skStyle.skTextStyle);
      }
    }
  };
  (_engine.CkParagraphBuilder.new = function(style) {
    if (style == null) dart.nullFailed(I[262], 1040, 40, "style");
    this[_style$0] = T$10.CkParagraphStyle()[_as](style);
    this[_placeholderCount] = 0;
    this[_placeholderScales] = G$.JSArrayOfdouble().of([]);
    this[_styleStack] = G$.JSArrayOfCkTextStyle().of([]);
    this[_paragraphBuilder] = T$10.SkParagraphBuilder()[_as](js_util.getProperty(T$10.SkParagraphBuilderNamespace(), _engine.canvasKit, "ParagraphBuilder").MakeFromFontCollection(style.skParagraphStyle, _engine.CanvasKitRenderer.instance.fontCollection.skFontCollection));
    this[_styleStack][$add](this[_style$0].getTextStyle());
  }).prototype = _engine.CkParagraphBuilder.prototype;
  dart.addRtiResources(_engine.CkParagraphBuilder, ["_engine|CkParagraphBuilder", "ui|ParagraphBuilder"]);
  dart.setMethodSignature(_engine.CkParagraphBuilder, () => dart.global.Object.setPrototypeOf({
    addPlaceholder: T$10.doubleAnddoubleAndPlaceholderAlignment__Tovoid(),
    [_addPlaceholder]: T$10._CkParagraphPlaceholderTovoid(),
    addText: T$.StringTovoid(),
    build: T$10.VoidToCkParagraph(),
    [_buildSkParagraph]: T$10.VoidToSkParagraph(),
    pop: T$.VoidTovoid(),
    [_peekStyle]: T$10.VoidToCkTextStyle(),
    pushStyle: T$10.TextStyleTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkParagraphBuilder))));
  dart.setStaticMethodSignature(_engine.CkParagraphBuilder, () => ['toSkPlaceholderStyle']);
  dart.setGetterSignature(_engine.CkParagraphBuilder, () => dart.global.Object.setPrototypeOf({
    placeholderCount: T$.int(),
    placeholderScales: T$9.ListOfdouble()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkParagraphBuilder))));
  dart.setLibraryUri(_engine.CkParagraphBuilder, I[220]);
  dart.setFieldSignature(_engine.CkParagraphBuilder, () => dart.global.Object.setPrototypeOf({
    [_paragraphBuilder]: {type: T$10.SkParagraphBuilder(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_style$0]: {type: T$10.CkParagraphStyle(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_placeholderCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_placeholderScales]: {type: T$9.ListOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_styleStack]: {type: T$10.ListOfCkTextStyle(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkParagraphBuilder))));
  dart.setStaticFieldSignature(_engine.CkParagraphBuilder, () => ['_defaultTextForeground', '_defaultTextBackground']);
  dart.defineLazy(_engine.CkParagraphBuilder, {
    /*_engine.CkParagraphBuilder._defaultTextForeground*/get _defaultTextForeground() {
      return T$10.SkPaint()[_as](new dart.global.window.flutterCanvasKit.Paint());
    },
    /*_engine.CkParagraphBuilder._defaultTextBackground*/get _defaultTextBackground() {
      let t$36525;
      return t$36525 = T$10.SkPaint()[_as](new dart.global.window.flutterCanvasKit.Paint()), (() => {
        _engine['SkPaintExtension|setColorInt'](t$36525, 0);
        return t$36525;
      })();
    }
  }, false);
  _engine._CkParagraphPlaceholder = class _CkParagraphPlaceholder extends core.Object {
    static ['_#new#tearOff'](opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[262], 1207, 19, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[262], 1208, 19, "height");
      let alignment = opts && 'alignment' in opts ? opts.alignment : null;
      if (alignment == null) dart.nullFailed(I[262], 1209, 19, "alignment");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[262], 1210, 19, "baseline");
      let offset = opts && 'offset' in opts ? opts.offset : null;
      if (offset == null) dart.nullFailed(I[262], 1211, 19, "offset");
      return new _engine._CkParagraphPlaceholder.new({width: width, height: height, alignment: alignment, baseline: baseline, offset: offset});
    }
  };
  (_engine._CkParagraphPlaceholder.new = function(opts) {
    let width = opts && 'width' in opts ? opts.width : null;
    if (width == null) dart.nullFailed(I[262], 1207, 19, "width");
    let height = opts && 'height' in opts ? opts.height : null;
    if (height == null) dart.nullFailed(I[262], 1208, 19, "height");
    let alignment = opts && 'alignment' in opts ? opts.alignment : null;
    if (alignment == null) dart.nullFailed(I[262], 1209, 19, "alignment");
    let baseline = opts && 'baseline' in opts ? opts.baseline : null;
    if (baseline == null) dart.nullFailed(I[262], 1210, 19, "baseline");
    let offset = opts && 'offset' in opts ? opts.offset : null;
    if (offset == null) dart.nullFailed(I[262], 1211, 19, "offset");
    this.width = width;
    this.height = height;
    this.alignment = alignment;
    this.baseline = baseline;
    this.offset = offset;
    ;
  }).prototype = _engine._CkParagraphPlaceholder.prototype;
  dart.addRtiResources(_engine._CkParagraphPlaceholder, ["_engine|_CkParagraphPlaceholder"]);
  dart.setLibraryUri(_engine._CkParagraphPlaceholder, I[220]);
  dart.setFieldSignature(_engine._CkParagraphPlaceholder, () => dart.global.Object.setPrototypeOf({
    width: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    alignment: {type: T$10.SkPlaceholderAlignment(), isConst: false, isFinal: true, libraryUri: I[220]},
    baseline: {type: T$10.SkTextBaseline(), isConst: false, isFinal: true, libraryUri: I[220]},
    offset: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._CkParagraphPlaceholder))));
  _engine.IntlSegmenterGranularity = class IntlSegmenterGranularity extends core._Enum {
    [_enumToString]() {
      return "IntlSegmenterGranularity." + dart.str(this[_name$]);
    }
  };
  (_engine.IntlSegmenterGranularity.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[263], 119, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[263], 119, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.IntlSegmenterGranularity).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.IntlSegmenterGranularity.prototype;
  dart.addRtiResources(_engine.IntlSegmenterGranularity, ["_engine|IntlSegmenterGranularity"]);
  dart.setMethodSignature(_engine.IntlSegmenterGranularity, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.IntlSegmenterGranularity))));
  dart.setLibraryUri(_engine.IntlSegmenterGranularity, I[220]);
  dart.setStaticFieldSignature(_engine.IntlSegmenterGranularity, () => ['values', 'grapheme', 'word']);
  dart.defineLazy(_engine.IntlSegmenterGranularity, {
    /*_engine.IntlSegmenterGranularity.values*/get values() {
      return C[844] || CT.C844;
    },
    /*_engine.IntlSegmenterGranularity.grapheme*/get grapheme() {
      return C[845] || CT.C845;
    },
    /*_engine.IntlSegmenterGranularity.word*/get word() {
      return C[846] || CT.C846;
    }
  }, false);
  var message$17 = dart.privateName(_engine, "CanvasKitError.message");
  _engine.CanvasKitError = class CanvasKitError extends core.Error {
    get message() {
      return this[message$17];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message) {
      if (message == null) dart.nullFailed(I[264], 11, 23, "message");
      return new _engine.CanvasKitError.new(message);
    }
    toString() {
      return "CanvasKitError: " + dart.str(this.message);
    }
  };
  (_engine.CanvasKitError.new = function(message) {
    if (message == null) dart.nullFailed(I[264], 11, 23, "message");
    this[message$17] = message;
    dart.global.Object.getPrototypeOf(_engine.CanvasKitError).new.call(this);
    ;
  }).prototype = _engine.CanvasKitError.prototype;
  dart.addRtiResources(_engine.CanvasKitError, ["_engine|CanvasKitError"]);
  dart.setLibraryUri(_engine.CanvasKitError, I[220]);
  dart.setFieldSignature(_engine.CanvasKitError, () => dart.global.Object.setPrototypeOf({message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CanvasKitError))));
  dart.defineExtensionMethods(_engine.CanvasKitError, ['toString']);
  _engine.SkiaShadowFlags = class SkiaShadowFlags extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.SkiaShadowFlags.new();
    }
  };
  (_engine.SkiaShadowFlags.new = function() {
    ;
  }).prototype = _engine.SkiaShadowFlags.prototype;
  dart.addRtiResources(_engine.SkiaShadowFlags, ["_engine|SkiaShadowFlags"]);
  dart.setLibraryUri(_engine.SkiaShadowFlags, I[220]);
  dart.setStaticFieldSignature(_engine.SkiaShadowFlags, () => ['kNone_ShadowFlag', 'kTransparentOccluder_ShadowFlag', 'kDirectionalLight_ShadowFlag', 'kDefaultShadowFlags', 'kTransparentOccluderShadowFlags']);
  dart.defineLazy(_engine.SkiaShadowFlags, {
    /*_engine.SkiaShadowFlags.kNone_ShadowFlag*/get kNone_ShadowFlag() {
      return 0;
    },
    /*_engine.SkiaShadowFlags.kTransparentOccluder_ShadowFlag*/get kTransparentOccluder_ShadowFlag() {
      return 1;
    },
    /*_engine.SkiaShadowFlags.kDirectionalLight_ShadowFlag*/get kDirectionalLight_ShadowFlag() {
      return 4;
    },
    /*_engine.SkiaShadowFlags.kDefaultShadowFlags*/get kDefaultShadowFlags() {
      return 4;
    },
    /*_engine.SkiaShadowFlags.kTransparentOccluderShadowFlags*/get kTransparentOccluderShadowFlags() {
      return 5;
    }
  }, false);
  var __CkVertices__ref = dart.privateName(_engine, "_#CkVertices#_ref");
  var __CkVertices__ref_isSet = dart.privateName(_engine, "_#CkVertices#_ref#isSet");
  var _mode$1 = dart.privateName(_engine, "_mode");
  var _positions$ = dart.privateName(_engine, "_positions");
  var _textureCoordinates$ = dart.privateName(_engine, "_textureCoordinates");
  var _colors$ = dart.privateName(_engine, "_colors");
  var _indices$ = dart.privateName(_engine, "_indices");
  _engine.CkVertices = class CkVertices extends core.Object {
    static new(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[265], 11, 19, "mode");
      if (positions == null) dart.nullFailed(I[265], 12, 21, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      if (textureCoordinates != null && textureCoordinates[$length] != positions[$length]) {
        dart.throw(new core.ArgumentError.new("\"positions\" and \"textureCoordinates\" lengths must match."));
      }
      if (colors != null && colors[$length] != positions[$length]) {
        dart.throw(new core.ArgumentError.new("\"positions\" and \"colors\" lengths must match."));
      }
      if (indices != null && dart.test(indices[$any](dart.fn(i => {
        if (i == null) dart.nullFailed(I[265], 26, 26, "i");
        return dart.notNull(i) < 0 || dart.notNull(i) >= dart.notNull(positions[$length]);
      }, T$.intTobool())))) {
        dart.throw(new core.ArgumentError.new("\"indices\" values must be valid indices in the positions list."));
      }
      return new _engine.CkVertices.__(_engine.toSkVertexMode(mode), _engine.toFlatSkPoints(positions), textureCoordinates != null ? _engine.toFlatSkPoints(textureCoordinates) : null, colors != null ? _engine.toFlatColors(colors) : null, indices != null ? _engine.toUint16List(indices) : null);
    }
    static ['_#new#tearOff'](mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[265], 11, 19, "mode");
      if (positions == null) dart.nullFailed(I[265], 12, 21, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return _engine.CkVertices.new(mode, positions, {textureCoordinates: textureCoordinates, colors: colors, indices: indices});
    }
    static raw(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[265], 41, 19, "mode");
      if (positions == null) dart.nullFailed(I[265], 42, 17, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      if (textureCoordinates != null && textureCoordinates[$length] != positions[$length]) {
        dart.throw(new core.ArgumentError.new("\"positions\" and \"textureCoordinates\" lengths must match."));
      }
      if (colors != null && dart.notNull(colors[$length]) * 2 !== positions[$length]) {
        dart.throw(new core.ArgumentError.new("\"positions\" and \"colors\" lengths must match."));
      }
      if (indices != null && dart.test(indices[$any](dart.fn(i => {
        if (i == null) dart.nullFailed(I[265], 56, 26, "i");
        return dart.notNull(i) < 0 || dart.notNull(i) >= dart.notNull(positions[$length]);
      }, T$.intTobool())))) {
        dart.throw(new core.ArgumentError.new("\"indices\" values must be valid indices in the positions list."));
      }
      let unsignedColors = null;
      if (colors != null) {
        unsignedColors = colors[$buffer][$asUint32List](colors[$offsetInBytes], colors[$length]);
      }
      return new _engine.CkVertices.__(_engine.toSkVertexMode(mode), positions, textureCoordinates, unsignedColors, indices);
    }
    static ['_#raw#tearOff'](mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[265], 41, 19, "mode");
      if (positions == null) dart.nullFailed(I[265], 42, 17, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return _engine.CkVertices.raw(mode, positions, {textureCoordinates: textureCoordinates, colors: colors, indices: indices});
    }
    static ['_#_#tearOff'](_mode, _positions, _textureCoordinates, _colors, _indices) {
      if (_mode == null) dart.nullFailed(I[265], 76, 10, "_mode");
      if (_positions == null) dart.nullFailed(I[265], 77, 10, "_positions");
      return new _engine.CkVertices.__(_mode, _positions, _textureCoordinates, _colors, _indices);
    }
    get [_ref]() {
      let t$36527;
      return dart.test(this[__CkVertices__ref_isSet]) ? (t$36527 = this[__CkVertices__ref], t$36527) : dart.throw(new _internal.LateError.fieldNI("_ref"));
    }
    set [_ref](_ref$35param) {
      if (_ref$35param == null) dart.nullFailed(I[265], 97, 36, "_ref#param");
      if (dart.test(this[__CkVertices__ref_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_ref"));
      else {
        this[__CkVertices__ref_isSet] = true;
        this[__CkVertices__ref] = _ref$35param;
      }
    }
    get skiaObject() {
      return this[_ref].nativeObject;
    }
    dispose() {
      this[_ref].dispose();
    }
    get debugDisposed() {
      return this[_ref].isDisposed;
    }
  };
  (_engine.CkVertices.__ = function(_mode, _positions, _textureCoordinates, _colors, _indices) {
    if (_mode == null) dart.nullFailed(I[265], 76, 10, "_mode");
    if (_positions == null) dart.nullFailed(I[265], 77, 10, "_positions");
    this[__CkVertices__ref] = null;
    this[__CkVertices__ref_isSet] = false;
    this[_mode$1] = _mode;
    this[_positions$] = _positions;
    this[_textureCoordinates$] = _textureCoordinates;
    this[_colors$] = _colors;
    this[_indices$] = _indices;
    let skVertices = _engine['CanvasKitExtension|MakeVertices'](_engine.canvasKit, this[_mode$1], this[_positions$], this[_textureCoordinates$], this[_colors$], this[_indices$]);
    this[_ref] = new (G$.UniqueRefOfSkVertices()).new(this, skVertices, "Vertices");
  }).prototype = _engine.CkVertices.prototype;
  dart.addRtiResources(_engine.CkVertices, ["_engine|CkVertices", "ui|Vertices"]);
  dart.setMethodSignature(_engine.CkVertices, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CkVertices))));
  dart.setStaticMethodSignature(_engine.CkVertices, () => ['new', 'raw']);
  dart.setGetterSignature(_engine.CkVertices, () => dart.global.Object.setPrototypeOf({
    [_ref]: T$10.UniqueRefOfSkVertices(),
    skiaObject: T$10.SkVertices(),
    debugDisposed: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CkVertices))));
  dart.setSetterSignature(_engine.CkVertices, () => dart.global.Object.setPrototypeOf({[_ref]: T$10.UniqueRefOfSkVertices()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CkVertices))));
  dart.setLibraryUri(_engine.CkVertices, I[220]);
  dart.setFieldSignature(_engine.CkVertices, () => dart.global.Object.setPrototypeOf({
    [_mode$1]: {type: T$10.SkVertexMode(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_positions$]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_textureCoordinates$]: {type: T$5.Float32ListN(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_colors$]: {type: T$10.Uint32ListN(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_indices$]: {type: T$8.Uint16ListN(), isConst: false, isFinal: true, libraryUri: I[43]},
    [__CkVertices__ref]: {type: T$10.UniqueRefNOfSkVertices(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CkVertices__ref_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CkVertices))));
  var _copyToClipboardStrategy = dart.privateName(_engine, "_copyToClipboardStrategy");
  var _pasteFromClipboardStrategy = dart.privateName(_engine, "_pasteFromClipboardStrategy");
  var _reportGetDataFailure = dart.privateName(_engine, "_reportGetDataFailure");
  _engine.ClipboardMessageHandler = class ClipboardMessageHandler extends core.Object {
    setDataMethodCall(methodCall, callback) {
      if (methodCall == null) dart.nullFailed(I[266], 19, 18, "methodCall");
      let codec = C[847] || CT.C847;
      let errorEnvelopeEncoded = false;
      this[_copyToClipboardStrategy].setData(T$.StringN()[_as](T$10.MapOfString$ObjectN()[_as](methodCall.arguments)[$_get]("text"))).then(T$.Null(), dart.fn(success => {
        if (success == null) dart.nullFailed(I[266], 24, 21, "success");
        if (dart.test(success)) {
          dart.nullCheck(callback)(codec.encodeSuccessEnvelope(true));
        } else {
          dart.nullCheck(callback)(codec.encodeErrorEnvelope({code: "copy_fail", message: "Clipboard.setData failed"}));
          errorEnvelopeEncoded = true;
        }
      }, T$.boolToNull())).catchError(dart.fn(_ => {
        if (!errorEnvelopeEncoded) {
          dart.nullCheck(callback)(codec.encodeErrorEnvelope({code: "copy_fail", message: "Clipboard.setData failed"}));
        }
      }, T$0.dynamicToNull()));
    }
    getDataMethodCall(callback) {
      let codec = C[847] || CT.C847;
      this[_pasteFromClipboardStrategy].getData().then(T$.Null(), dart.fn(data => {
        if (data == null) dart.nullFailed(I[266], 45, 56, "data");
        let map = new (G.IdentityMapOfString$dynamic()).from(["text", data]);
        dart.nullCheck(callback)(codec.encodeSuccessEnvelope(map));
      }, T$10.StringToNull())).catchError(dart.fn(error => {
        if (T$10.UnimplementedError()[_is](error)) {
          G.FutureOfvoid().delayed(core.Duration.zero).then(T$.Null(), dart.fn(_ => {
            if (callback != null) {
              callback(null);
            }
          }, T$.voidToNull()));
          return;
        }
        this[_reportGetDataFailure](callback, codec, error);
      }, T$0.dynamicToNull()));
    }
    hasStringsMethodCall(callback) {
      let codec = C[847] || CT.C847;
      this[_pasteFromClipboardStrategy].getData().then(T$.Null(), dart.fn(data => {
        if (data == null) dart.nullFailed(I[266], 69, 56, "data");
        let map = new (G.IdentityMapOfString$dynamic()).from(["value", data[$isNotEmpty]]);
        dart.nullCheck(callback)(codec.encodeSuccessEnvelope(map));
      }, T$10.StringToNull())).catchError(dart.fn(error => {
        if (T$10.UnimplementedError()[_is](error)) {
          G.FutureOfvoid().delayed(core.Duration.zero).then(T$.Null(), dart.fn(_ => {
            if (callback != null) {
              callback(null);
            }
          }, T$.voidToNull()));
          return;
        }
        let map = new (G.IdentityMapOfString$dynamic()).from(["value", false]);
        dart.nullCheck(callback)(codec.encodeSuccessEnvelope(map));
      }, T$0.dynamicToNull()));
    }
    [_reportGetDataFailure](callback, codec, error) {
      if (codec == null) dart.nullFailed(I[266], 91, 19, "codec");
      core.print("Could not get text from clipboard: " + dart.str(error));
      dart.nullCheck(callback)(codec.encodeErrorEnvelope({code: "paste_fail", message: "Clipboard.getData failed"}));
    }
    set pasteFromClipboardStrategy(strategy) {
      if (strategy == null) dart.nullFailed(I[266], 98, 61, "strategy");
      this[_pasteFromClipboardStrategy] = strategy;
    }
    set copyToClipboardStrategy(strategy) {
      if (strategy == null) dart.nullFailed(I[266], 102, 55, "strategy");
      this[_copyToClipboardStrategy] = strategy;
    }
    static ['_#new#tearOff']() {
      return new _engine.ClipboardMessageHandler.new();
    }
  };
  (_engine.ClipboardMessageHandler.new = function() {
    this[_copyToClipboardStrategy] = _engine.CopyToClipboardStrategy.new();
    this[_pasteFromClipboardStrategy] = _engine.PasteFromClipboardStrategy.new();
    ;
  }).prototype = _engine.ClipboardMessageHandler.prototype;
  dart.addRtiResources(_engine.ClipboardMessageHandler, ["_engine|ClipboardMessageHandler"]);
  dart.setMethodSignature(_engine.ClipboardMessageHandler, () => dart.global.Object.setPrototypeOf({
    setDataMethodCall: T$10.MethodCallAndFnTovoid(),
    getDataMethodCall: T$10.FnTovoid$39(),
    hasStringsMethodCall: T$10.FnTovoid$39(),
    [_reportGetDataFailure]: T$10.FnAndMethodCodecAnddynamicTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClipboardMessageHandler))));
  dart.setSetterSignature(_engine.ClipboardMessageHandler, () => dart.global.Object.setPrototypeOf({
    pasteFromClipboardStrategy: T$10.PasteFromClipboardStrategy(),
    copyToClipboardStrategy: T$10.CopyToClipboardStrategy()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.ClipboardMessageHandler))));
  dart.setLibraryUri(_engine.ClipboardMessageHandler, I[220]);
  dart.setFieldSignature(_engine.ClipboardMessageHandler, () => dart.global.Object.setPrototypeOf({
    [_copyToClipboardStrategy]: {type: T$10.CopyToClipboardStrategy(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_pasteFromClipboardStrategy]: {type: T$10.PasteFromClipboardStrategy(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ClipboardMessageHandler))));
  _engine.CopyToClipboardStrategy = class CopyToClipboardStrategy extends core.Object {
    static new() {
      return js_util.getProperty(T$10.DomClipboardN(), js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator"), "clipboard") != null ? new _engine.ClipboardAPICopyStrategy.new() : new _engine.ExecCommandCopyStrategy.new();
    }
    static ['_#new#tearOff']() {
      return _engine.CopyToClipboardStrategy.new();
    }
  };
  (_engine.CopyToClipboardStrategy[dart.mixinNew] = function() {
  }).prototype = _engine.CopyToClipboardStrategy.prototype;
  dart.addRtiResources(_engine.CopyToClipboardStrategy, ["_engine|CopyToClipboardStrategy"]);
  dart.setStaticMethodSignature(_engine.CopyToClipboardStrategy, () => ['new']);
  dart.setLibraryUri(_engine.CopyToClipboardStrategy, I[220]);
  _engine.PasteFromClipboardStrategy = class PasteFromClipboardStrategy extends core.Object {
    static new() {
      return ui_web.browser.browserEngine == ui_web.BrowserEngine.firefox || js_util.getProperty(T$10.DomClipboardN(), js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator"), "clipboard") == null ? new _engine.ExecCommandPasteStrategy.new() : new _engine.ClipboardAPIPasteStrategy.new();
    }
    static ['_#new#tearOff']() {
      return _engine.PasteFromClipboardStrategy.new();
    }
  };
  (_engine.PasteFromClipboardStrategy[dart.mixinNew] = function() {
  }).prototype = _engine.PasteFromClipboardStrategy.prototype;
  dart.addRtiResources(_engine.PasteFromClipboardStrategy, ["_engine|PasteFromClipboardStrategy"]);
  dart.setStaticMethodSignature(_engine.PasteFromClipboardStrategy, () => ['new']);
  dart.setLibraryUri(_engine.PasteFromClipboardStrategy, I[220]);
  _engine.ClipboardAPICopyStrategy = class ClipboardAPICopyStrategy extends core.Object {
    setData(text) {
      return async.async(T$.bool(), function* setData() {
        try {
          yield _engine['DomClipboardExtension|writeText'](dart.nullCheck(js_util.getProperty(T$10.DomClipboardN(), js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator"), "clipboard")), dart.nullCheck(text));
        } catch (t$36$35e) {
          let error = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](error)) {
            core.print("copy is not successful " + dart.str(error));
            return G$.FutureOfbool().value(false);
          } else
            throw t$36$35e;
        }
        return G$.FutureOfbool().value(true);
      });
    }
    static ['_#new#tearOff']() {
      return new _engine.ClipboardAPICopyStrategy.new();
    }
  };
  (_engine.ClipboardAPICopyStrategy.new = function() {
    ;
  }).prototype = _engine.ClipboardAPICopyStrategy.prototype;
  dart.addRtiResources(_engine.ClipboardAPICopyStrategy, ["_engine|ClipboardAPICopyStrategy", "_engine|CopyToClipboardStrategy"]);
  dart.setMethodSignature(_engine.ClipboardAPICopyStrategy, () => dart.global.Object.setPrototypeOf({setData: T$10.StringNToFutureOfbool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClipboardAPICopyStrategy))));
  dart.setLibraryUri(_engine.ClipboardAPICopyStrategy, I[220]);
  _engine.ClipboardAPIPasteStrategy = class ClipboardAPIPasteStrategy extends core.Object {
    getData() {
      return async.async(T$.String(), function* getData() {
        return _engine['DomClipboardExtension|readText'](dart.nullCheck(js_util.getProperty(T$10.DomClipboardN(), js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator"), "clipboard")));
      });
    }
    static ['_#new#tearOff']() {
      return new _engine.ClipboardAPIPasteStrategy.new();
    }
  };
  (_engine.ClipboardAPIPasteStrategy.new = function() {
    ;
  }).prototype = _engine.ClipboardAPIPasteStrategy.prototype;
  dart.addRtiResources(_engine.ClipboardAPIPasteStrategy, ["_engine|ClipboardAPIPasteStrategy", "_engine|PasteFromClipboardStrategy"]);
  dart.setMethodSignature(_engine.ClipboardAPIPasteStrategy, () => dart.global.Object.setPrototypeOf({getData: T$2.VoidToFutureOfString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClipboardAPIPasteStrategy))));
  dart.setLibraryUri(_engine.ClipboardAPIPasteStrategy, I[220]);
  var _setDataSync = dart.privateName(_engine, "_setDataSync");
  var _appendTemporaryTextArea = dart.privateName(_engine, "_appendTemporaryTextArea");
  var _removeTemporaryTextArea = dart.privateName(_engine, "_removeTemporaryTextArea");
  _engine.ExecCommandCopyStrategy = class ExecCommandCopyStrategy extends core.Object {
    setData(text) {
      return G$.FutureOfbool().value(this[_setDataSync](text));
    }
    [_setDataSync](text) {
      let tempTextArea = this[_appendTemporaryTextArea]();
      _engine['DomHTMLTextAreaElementExtension|set#value'](tempTextArea, text);
      _engine['DomElementExtension|focus'](tempTextArea);
      tempTextArea.select();
      let result = false;
      try {
        result = _engine['DomDocumentExtension|execCommand'](dart.jsInteropNullCheck(dart.global.document), "copy");
        if (!dart.test(result)) {
          core.print("copy is not successful");
        }
      } catch (t$36$35e) {
        let error = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](error)) {
          core.print("copy is not successful " + dart.str(error));
        } else
          throw t$36$35e;
      } finally {
        this[_removeTemporaryTextArea](tempTextArea);
      }
      return result;
    }
    [_appendTemporaryTextArea]() {
      let t$36529;
      let tempElement = _engine.createDomHTMLTextAreaElement();
      let elementStyle = js_util.getProperty(T$9.DomCSSStyleDeclaration(), tempElement, "style");
      t$36529 = elementStyle;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36529, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36529, "-99999px");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36529, "-99999px");
        _engine['DomCSSStyleDeclarationExtension|set#opacity'](t$36529, "0");
        _engine['DomCSSStyleDeclarationExtension|set#color'](t$36529, "transparent");
        _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$36529, "transparent");
        _engine['DomCSSStyleDeclarationExtension|set#background'](t$36529, "transparent");
        return t$36529;
      })();
      dart.nullCheck(js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body")).append(tempElement);
      return tempElement;
    }
    [_removeTemporaryTextArea](element) {
      if (element == null) dart.nullFailed(I[266], 217, 48, "element");
      element.remove();
    }
    static ['_#new#tearOff']() {
      return new _engine.ExecCommandCopyStrategy.new();
    }
  };
  (_engine.ExecCommandCopyStrategy.new = function() {
    ;
  }).prototype = _engine.ExecCommandCopyStrategy.prototype;
  dart.addRtiResources(_engine.ExecCommandCopyStrategy, ["_engine|ExecCommandCopyStrategy", "_engine|CopyToClipboardStrategy"]);
  dart.setMethodSignature(_engine.ExecCommandCopyStrategy, () => dart.global.Object.setPrototypeOf({
    setData: T$10.StringNToFutureOfbool(),
    [_setDataSync]: T$6.StringNTobool(),
    [_appendTemporaryTextArea]: T$10.VoidToDomHTMLTextAreaElement(),
    [_removeTemporaryTextArea]: T$9.DomHTMLElementTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ExecCommandCopyStrategy))));
  dart.setLibraryUri(_engine.ExecCommandCopyStrategy, I[220]);
  _engine.ExecCommandPasteStrategy = class ExecCommandPasteStrategy extends core.Object {
    getData() {
      return G$.FutureOfString().error(new core.UnimplementedError.new("Paste is not implemented for this browser."));
    }
    static ['_#new#tearOff']() {
      return new _engine.ExecCommandPasteStrategy.new();
    }
  };
  (_engine.ExecCommandPasteStrategy.new = function() {
    ;
  }).prototype = _engine.ExecCommandPasteStrategy.prototype;
  dart.addRtiResources(_engine.ExecCommandPasteStrategy, ["_engine|ExecCommandPasteStrategy", "_engine|PasteFromClipboardStrategy"]);
  dart.setMethodSignature(_engine.ExecCommandPasteStrategy, () => dart.global.Object.setPrototypeOf({getData: T$2.VoidToFutureOfString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ExecCommandPasteStrategy))));
  dart.setLibraryUri(_engine.ExecCommandPasteStrategy, I[220]);
  _engine.ColorFilterType = class ColorFilterType extends core._Enum {
    [_enumToString]() {
      return "ColorFilterType." + dart.str(this[_name$]);
    }
  };
  (_engine.ColorFilterType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[267], 7, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[267], 7, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.ColorFilterType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.ColorFilterType.prototype;
  dart.addRtiResources(_engine.ColorFilterType, ["_engine|ColorFilterType"]);
  dart.setMethodSignature(_engine.ColorFilterType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ColorFilterType))));
  dart.setLibraryUri(_engine.ColorFilterType, I[220]);
  dart.setStaticFieldSignature(_engine.ColorFilterType, () => ['values', 'mode', 'matrix', 'linearToSrgbGamma', 'srgbToLinearGamma']);
  dart.defineLazy(_engine.ColorFilterType, {
    /*_engine.ColorFilterType.values*/get values() {
      return C[848] || CT.C848;
    },
    /*_engine.ColorFilterType.mode*/get mode() {
      return C[849] || CT.C849;
    },
    /*_engine.ColorFilterType.matrix*/get matrix() {
      return C[850] || CT.C850;
    },
    /*_engine.ColorFilterType.linearToSrgbGamma*/get linearToSrgbGamma() {
      return C[851] || CT.C851;
    },
    /*_engine.ColorFilterType.srgbToLinearGamma*/get srgbToLinearGamma() {
      return C[852] || CT.C852;
    }
  }, false);
  var color$2 = dart.privateName(_engine, "EngineColorFilter.color");
  var blendMode$1 = dart.privateName(_engine, "EngineColorFilter.blendMode");
  var matrix$1 = dart.privateName(_engine, "EngineColorFilter.matrix");
  var type = dart.privateName(_engine, "EngineColorFilter.type");
  _engine.EngineColorFilter = class EngineColorFilter extends core.Object {
    get color() {
      return this[color$2];
    }
    set color(value) {
      super.color = value;
    }
    get blendMode() {
      return this[blendMode$1];
    }
    set blendMode(value) {
      super.blendMode = value;
    }
    get matrix() {
      return this[matrix$1];
    }
    set matrix(value) {
      super.matrix = value;
    }
    get type() {
      return this[type];
    }
    set type(value) {
      super.type = value;
    }
    static ['_#mode#tearOff'](color, blendMode) {
      if (color == null) dart.nullFailed(I[267], 30, 46, "color");
      if (blendMode == null) dart.nullFailed(I[267], 30, 71, "blendMode");
      return new _engine.EngineColorFilter.mode(color, blendMode);
    }
    static ['_#matrix#tearOff'](matrix) {
      if (matrix == null) dart.nullFailed(I[267], 94, 52, "matrix");
      return new _engine.EngineColorFilter.matrix(matrix);
    }
    static ['_#linearToSrgbGamma#tearOff']() {
      return new _engine.EngineColorFilter.linearToSrgbGamma();
    }
    static ['_#srgbToLinearGamma#tearOff']() {
      return new _engine.EngineColorFilter.srgbToLinearGamma();
    }
    filterBounds(inputBounds) {
      if (inputBounds == null) dart.nullFailed(I[267], 122, 32, "inputBounds");
      return inputBounds;
    }
    toString() {
      switch (this.type) {
        case C[849] || CT.C849:
          {
            return "ColorFilter.mode(" + dart.str(this.color) + ", " + dart.str(this.blendMode) + ")";
          }
        case C[850] || CT.C850:
          {
            return "ColorFilter.matrix(" + dart.str(this.matrix) + ")";
          }
        case C[851] || CT.C851:
          {
            return "ColorFilter.linearToSrgbGamma()";
          }
        case C[852] || CT.C852:
          {
            return "ColorFilter.srgbToLinearGamma()";
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
  };
  (_engine.EngineColorFilter.mode = function(color, blendMode) {
    if (color == null) dart.nullFailed(I[267], 30, 46, "color");
    if (blendMode == null) dart.nullFailed(I[267], 30, 71, "blendMode");
    this[color$2] = color;
    this[blendMode$1] = blendMode;
    this[matrix$1] = null;
    this[type] = _engine.ColorFilterType.mode;
    ;
  }).prototype = _engine.EngineColorFilter.prototype;
  (_engine.EngineColorFilter.matrix = function(matrix) {
    if (matrix == null) dart.nullFailed(I[267], 94, 52, "matrix");
    this[matrix$1] = matrix;
    this[color$2] = null;
    this[blendMode$1] = null;
    this[type] = _engine.ColorFilterType.matrix;
    ;
  }).prototype = _engine.EngineColorFilter.prototype;
  (_engine.EngineColorFilter.linearToSrgbGamma = function() {
    this[color$2] = null;
    this[blendMode$1] = null;
    this[matrix$1] = null;
    this[type] = _engine.ColorFilterType.linearToSrgbGamma;
    ;
  }).prototype = _engine.EngineColorFilter.prototype;
  (_engine.EngineColorFilter.srgbToLinearGamma = function() {
    this[color$2] = null;
    this[blendMode$1] = null;
    this[matrix$1] = null;
    this[type] = _engine.ColorFilterType.srgbToLinearGamma;
    ;
  }).prototype = _engine.EngineColorFilter.prototype;
  dart.addRtiResources(_engine.EngineColorFilter, ["_engine|EngineColorFilter", "_engine|SceneImageFilter", "ui|ColorFilter", "ui|ImageFilter"]);
  dart.setMethodSignature(_engine.EngineColorFilter, () => dart.global.Object.setPrototypeOf({filterBounds: T$8.RectToRect()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineColorFilter))));
  dart.setLibraryUri(_engine.EngineColorFilter, I[220]);
  dart.setFieldSignature(_engine.EngineColorFilter, () => dart.global.Object.setPrototypeOf({
    color: {type: T$10.ColorN(), isConst: false, isFinal: true, libraryUri: I[198]},
    blendMode: {type: T$9.BlendModeN(), isConst: false, isFinal: true, libraryUri: I[198]},
    matrix: {type: T$10.ListNOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    type: {type: T$10.ColorFilterType(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineColorFilter))));
  dart.defineExtensionMethods(_engine.EngineColorFilter, ['toString']);
  var _usedLegacyConfigStyle = dart.privateName(_engine, "_usedLegacyConfigStyle");
  var _configuration = dart.privateName(_engine, "_configuration");
  _engine.FlutterConfiguration = class FlutterConfiguration extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.FlutterConfiguration.new();
    }
    static ['_#legacy#tearOff'](config) {
      return new _engine.FlutterConfiguration.legacy(config);
    }
    withOverrides(overrides) {
      let newJsConfig = T$10.JsFlutterConfiguration()[_as](T$3.JSObject()[_as](dart.jsInteropNullCheck(dart.global.Object).assign(js_interop['NullableObjectUtilExtension|jsify'](new (G.IdentityMapOfString$Object()).new()), js_interop['NullableObjectUtilExtension|jsify'](this[_configuration]), js_interop['NullableObjectUtilExtension|jsify'](overrides))));
      let newConfig = new _engine.FlutterConfiguration.new();
      newConfig[_configuration] = newJsConfig;
      return newConfig;
    }
    setUserConfiguration(configuration) {
      if (configuration != null) {
        if (!!dart.test(this[_usedLegacyConfigStyle])) dart.assertFailed("Use engineInitializer.initializeEngine(config) only. Using the (deprecated) window.flutterConfiguration and initializeEngine configuration simultaneously is not supported.", I[268], 145, 11, "!_usedLegacyConfigStyle");
        if (!(_engine._requestedRendererType == null || _engine['JsFlutterConfigurationExtension|get#renderer'](configuration) == null)) dart.assertFailed("Use engineInitializer.initializeEngine(config) only. Using the (deprecated) window.flutterWebRenderer and initializeEngine configuration simultaneously is not supported.", I[268], 150, 11, "_requestedRendererType == null || configuration.renderer == null");
        this[_configuration] = configuration;
      }
    }
    get assetBase() {
      let t$36531;
      t$36531 = this[_configuration];
      return t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#assetBase'](t$36531);
    }
    get canvasKitBaseUrl() {
      let t$36531, t$36531$;
      t$36531$ = (t$36531 = this[_configuration], t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#canvasKitBaseUrl'](t$36531));
      return t$36531$ == null ? "canvaskit/" : t$36531$;
    }
    get canvasKitVariant() {
      let t$36531, t$36531$;
      let variant = (t$36531$ = (t$36531 = this[_configuration], t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#canvasKitVariant'](t$36531)), t$36531$ == null ? "auto" : t$36531$);
      return core['EnumByName|byName'](T$10.CanvasKitVariant(), _engine.CanvasKitVariant.values, variant);
    }
    get canvasKitForceCpuOnly() {
      let t$36531, t$36531$;
      t$36531$ = (t$36531 = this[_configuration], t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#canvasKitForceCpuOnly'](t$36531));
      return t$36531$ == null ? false : t$36531$;
    }
    get canvasKitMaximumSurfaces() {
      let t$36532, t$36531, t$36531$;
      let maxSurfaces = (t$36531$ = (t$36531 = this[_configuration], t$36531 == null ? null : (t$36532 = _engine['JsFlutterConfigurationExtension|get#canvasKitMaximumSurfaces'](t$36531), t$36532 == null ? null : t$36532[$toInt]())), t$36531$ == null ? 8 : t$36531$);
      if (dart.notNull(maxSurfaces) < 1) {
        return 1;
      }
      return maxSurfaces;
    }
    get debugShowSemanticsNodes() {
      let t$36531, t$36531$;
      t$36531$ = (t$36531 = this[_configuration], t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#debugShowSemanticsNodes'](t$36531));
      return t$36531$ == null ? false : t$36531$;
    }
    get hostElement() {
      let t$36531;
      t$36531 = this[_configuration];
      return t$36531 == null ? null : js_util.getProperty(T$9.DomElementN(), t$36531, "hostElement");
    }
    get multiViewEnabled() {
      let t$36531, t$36531$;
      t$36531$ = (t$36531 = this[_configuration], t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#multiViewEnabled'](t$36531));
      return t$36531$ == null ? false : t$36531$;
    }
    get nonce() {
      let t$36531;
      t$36531 = this[_configuration];
      return t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#nonce'](t$36531);
    }
    get requestedRendererType() {
      let t$36531, t$36531$;
      t$36531$ = (t$36531 = this[_configuration], t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#renderer'](t$36531));
      return t$36531$ == null ? _engine._requestedRendererType : t$36531$;
    }
    get fontFallbackBaseUrl() {
      let t$36531, t$36531$;
      t$36531$ = (t$36531 = this[_configuration], t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#fontFallbackBaseUrl'](t$36531));
      return t$36531$ == null ? "https://fonts.gstatic.com/s/" : t$36531$;
    }
    get useColorEmoji() {
      let t$36531, t$36531$;
      t$36531$ = (t$36531 = this[_configuration], t$36531 == null ? null : _engine['JsFlutterConfigurationExtension|get#useColorEmoji'](t$36531));
      return t$36531$ == null ? false : t$36531$;
    }
  };
  (_engine.FlutterConfiguration.new = function() {
    this[_usedLegacyConfigStyle] = false;
    this[_configuration] = null;
    ;
  }).prototype = _engine.FlutterConfiguration.prototype;
  (_engine.FlutterConfiguration.legacy = function(config) {
    this[_usedLegacyConfigStyle] = false;
    this[_configuration] = null;
    if (config != null) {
      this[_usedLegacyConfigStyle] = true;
      this[_configuration] = config;
    }
    if (!dart.test(dart.fn(() => {
      if (config != null) {
        _engine['DomConsoleExtension|warn'](js_util.getProperty(T$9.DomConsole(), dart.jsInteropNullCheck(dart.global.window), "console"), "window.flutterConfiguration is now deprecated.\nUse engineInitializer.initializeEngine(config) instead.\nSee: https://docs.flutter.dev/development/platform-integration/web/initialization");
      }
      if (_engine._requestedRendererType != null) {
        _engine['DomConsoleExtension|warn'](js_util.getProperty(T$9.DomConsole(), dart.jsInteropNullCheck(dart.global.window), "console"), "window.flutterWebRenderer is now deprecated.\nUse engineInitializer.initializeEngine(config) instead.\nSee: https://docs.flutter.dev/development/platform-integration/web/initialization");
      }
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[268], 104, 12, "() {\n      if (config != null) {\n        domWindow.console.warn(\n            'window.flutterConfiguration is now deprecated.\\n'\n            'Use engineInitializer.initializeEngine(config) instead.\\n'\n            'See: https://docs.flutter.dev/development/platform-integration/web/initialization');\n      }\n      if (_requestedRendererType != null) {\n        domWindow.console.warn('window.flutterWebRenderer is now deprecated.\\n'\n            'Use engineInitializer.initializeEngine(config) instead.\\n'\n            'See: https://docs.flutter.dev/development/platform-integration/web/initialization');\n      }\n      return true;\n    }()");
  }).prototype = _engine.FlutterConfiguration.prototype;
  dart.addRtiResources(_engine.FlutterConfiguration, ["_engine|FlutterConfiguration"]);
  dart.setMethodSignature(_engine.FlutterConfiguration, () => dart.global.Object.setPrototypeOf({
    withOverrides: T$10.JsFlutterConfigurationNToFlutterConfiguration(),
    setUserConfiguration: T$10.JsFlutterConfigurationNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FlutterConfiguration))));
  dart.setGetterSignature(_engine.FlutterConfiguration, () => dart.global.Object.setPrototypeOf({
    assetBase: T$.StringN(),
    canvasKitBaseUrl: T$.String(),
    canvasKitVariant: T$10.CanvasKitVariant(),
    canvasKitForceCpuOnly: T$.bool(),
    canvasKitMaximumSurfaces: T$.int(),
    debugShowSemanticsNodes: T$.bool(),
    hostElement: T$9.DomElementN(),
    multiViewEnabled: T$.bool(),
    nonce: T$.StringN(),
    requestedRendererType: T$.StringN(),
    fontFallbackBaseUrl: T$.String(),
    useColorEmoji: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FlutterConfiguration))));
  dart.setLibraryUri(_engine.FlutterConfiguration, I[220]);
  dart.setFieldSignature(_engine.FlutterConfiguration, () => dart.global.Object.setPrototypeOf({
    [_usedLegacyConfigStyle]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_configuration]: {type: T$10.JsFlutterConfigurationN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FlutterConfiguration))));
  dart.setStaticFieldSignature(_engine.FlutterConfiguration, () => ['flutterWebAutoDetect', 'flutterWebUseSkwasm', 'useSkia', '_defaultCanvasKitBaseUrl', '_defaultCanvasKitForceCpuOnly', '_defaultDebugShowSemanticsNodes']);
  dart.defineLazy(_engine.FlutterConfiguration, {
    /*_engine.FlutterConfiguration.flutterWebAutoDetect*/get flutterWebAutoDetect() {
      return false;
    },
    /*_engine.FlutterConfiguration.flutterWebUseSkwasm*/get flutterWebUseSkwasm() {
      return false;
    },
    /*_engine.FlutterConfiguration.useSkia*/get useSkia() {
      return false;
    },
    /*_engine.FlutterConfiguration._defaultCanvasKitBaseUrl*/get _defaultCanvasKitBaseUrl() {
      return "canvaskit/";
    },
    /*_engine.FlutterConfiguration._defaultCanvasKitForceCpuOnly*/get _defaultCanvasKitForceCpuOnly() {
      return false;
    },
    /*_engine.FlutterConfiguration._defaultDebugShowSemanticsNodes*/get _defaultDebugShowSemanticsNodes() {
      return false;
    }
  }, false);
  var id$1 = dart.privateName(_engine, "EngineFlutterDisplay.id");
  var size$2 = dart.privateName(_engine, "EngineFlutterDisplay.size");
  var refreshRate$ = dart.privateName(_engine, "EngineFlutterDisplay.refreshRate");
  var _debugDevicePixelRatioOverride = dart.privateName(_engine, "_debugDevicePixelRatioOverride");
  _engine.EngineFlutterDisplay = class EngineFlutterDisplay extends ui.Display {
    get id() {
      return this[id$1];
    }
    set id(value) {
      super.id = value;
    }
    get size() {
      return this[size$2];
    }
    set size(value) {
      super.size = value;
    }
    get refreshRate() {
      return this[refreshRate$];
    }
    set refreshRate(value) {
      super.refreshRate = value;
    }
    static ['_#new#tearOff'](opts) {
      let id = opts && 'id' in opts ? opts.id : null;
      if (id == null) dart.nullFailed(I[269], 11, 19, "id");
      let size = opts && 'size' in opts ? opts.size : null;
      if (size == null) dart.nullFailed(I[269], 12, 19, "size");
      let refreshRate = opts && 'refreshRate' in opts ? opts.refreshRate : null;
      if (refreshRate == null) dart.nullFailed(I[269], 13, 19, "refreshRate");
      return new _engine.EngineFlutterDisplay.new({id: id, size: size, refreshRate: refreshRate});
    }
    static get instance() {
      return _engine.EngineFlutterDisplay._instance;
    }
    get devicePixelRatio() {
      let t$36531;
      t$36531 = this[_debugDevicePixelRatioOverride];
      return t$36531 == null ? this.browserDevicePixelRatio : t$36531;
    }
    get browserDevicePixelRatio() {
      let ratio = _engine['DomWindowExtension|get#devicePixelRatio'](dart.jsInteropNullCheck(dart.global.window));
      return ratio === 0.0 ? 1.0 : ratio;
    }
    debugOverrideDevicePixelRatio(value) {
      this[_debugDevicePixelRatioOverride] = value;
    }
  };
  (_engine.EngineFlutterDisplay.new = function(opts) {
    let id = opts && 'id' in opts ? opts.id : null;
    if (id == null) dart.nullFailed(I[269], 11, 19, "id");
    let size = opts && 'size' in opts ? opts.size : null;
    if (size == null) dart.nullFailed(I[269], 12, 19, "size");
    let refreshRate = opts && 'refreshRate' in opts ? opts.refreshRate : null;
    if (refreshRate == null) dart.nullFailed(I[269], 13, 19, "refreshRate");
    this[_debugDevicePixelRatioOverride] = null;
    this[id$1] = id;
    this[size$2] = size;
    this[refreshRate$] = refreshRate;
    ;
  }).prototype = _engine.EngineFlutterDisplay.prototype;
  dart.addRtiResources(_engine.EngineFlutterDisplay, ["_engine|EngineFlutterDisplay"]);
  dart.setMethodSignature(_engine.EngineFlutterDisplay, () => dart.global.Object.setPrototypeOf({debugOverrideDevicePixelRatio: T$10.doubleNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineFlutterDisplay))));
  dart.setGetterSignature(_engine.EngineFlutterDisplay, () => dart.global.Object.setPrototypeOf({
    devicePixelRatio: T$.double(),
    browserDevicePixelRatio: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineFlutterDisplay))));
  dart.setStaticGetterSignature(_engine.EngineFlutterDisplay, () => ['instance']);
  dart.setLibraryUri(_engine.EngineFlutterDisplay, I[220]);
  dart.setFieldSignature(_engine.EngineFlutterDisplay, () => dart.global.Object.setPrototypeOf({
    id: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    size: {type: T$8.Size(), isConst: false, isFinal: true, libraryUri: I[198]},
    refreshRate: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_debugDevicePixelRatioOverride]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineFlutterDisplay))));
  dart.setStaticFieldSignature(_engine.EngineFlutterDisplay, () => ['_instance']);
  dart.defineLazy(_engine.EngineFlutterDisplay, {
    /*_engine.EngineFlutterDisplay._instance*/get _instance() {
      let t$36531, t$36531$, t$36531$0, t$36531$1;
      return new _engine.EngineFlutterDisplay.new({id: 0, size: new ui.Size.new((t$36531$ = (t$36531 = js_util.getProperty(T$10.DomScreenN(), dart.jsInteropNullCheck(dart.global.window), "screen"), t$36531 == null ? null : js_util.getProperty(T$.double(), t$36531, "width")), t$36531$ == null ? 0.0 : t$36531$), (t$36531$1 = (t$36531$0 = js_util.getProperty(T$10.DomScreenN(), dart.jsInteropNullCheck(dart.global.window), "screen"), t$36531$0 == null ? null : js_util.getProperty(T$.double(), t$36531$0, "height")), t$36531$1 == null ? 0.0 : t$36531$1)), refreshRate: 60.0});
    }
  }, false);
  _engine.ScreenOrientation = class ScreenOrientation extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.ScreenOrientation.new();
    }
    static get instance() {
      return _engine.ScreenOrientation._instance;
    }
    setPreferredOrientation(orientations) {
      if (orientations == null) dart.nullFailed(I[269], 89, 54, "orientations");
      return async.async(T$.bool(), function* setPreferredOrientation() {
        let screen = js_util.getProperty(T$10.DomScreenN(), dart.jsInteropNullCheck(dart.global.window), "screen");
        if (screen != null) {
          let screenOrientation = js_util.getProperty(T$10.DomScreenOrientationN(), screen, "orientation");
          if (screenOrientation != null) {
            if (dart.test(orientations[$isEmpty])) {
              screenOrientation.unlock();
              return true;
            } else {
              let lockType = _engine.ScreenOrientation._deviceOrientationToLockType(T$.StringN()[_as](orientations[$first]));
              if (lockType != null) {
                try {
                  yield _engine['DomScreenOrientationExtension|lock'](screenOrientation, lockType);
                  return true;
                } catch (t$36$35e) {
                  let _ = dart.getThrown(t$36$35e);
                  if (T$.Object()[_is](_)) {
                    return G$.FutureOfbool().value(false);
                  } else
                    throw t$36$35e;
                }
              }
            }
          }
        }
        return false;
      });
    }
    static _deviceOrientationToLockType(deviceOrientation) {
      switch (deviceOrientation) {
        case "DeviceOrientation.portraitUp":
          {
            return "portrait-primary";
          }
        case "DeviceOrientation.portraitDown":
          {
            return "portrait-secondary";
          }
        case "DeviceOrientation.landscapeLeft":
          {
            return "landscape-primary";
          }
        case "DeviceOrientation.landscapeRight":
          {
            return "landscape-secondary";
          }
        default:
          {
            return null;
          }
      }
    }
  };
  (_engine.ScreenOrientation.new = function() {
    ;
  }).prototype = _engine.ScreenOrientation.prototype;
  dart.addRtiResources(_engine.ScreenOrientation, ["_engine|ScreenOrientation"]);
  dart.setMethodSignature(_engine.ScreenOrientation, () => dart.global.Object.setPrototypeOf({setPreferredOrientation: T$10.ListToFutureOfbool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ScreenOrientation))));
  dart.setStaticMethodSignature(_engine.ScreenOrientation, () => ['_deviceOrientationToLockType']);
  dart.setStaticGetterSignature(_engine.ScreenOrientation, () => ['instance']);
  dart.setLibraryUri(_engine.ScreenOrientation, I[220]);
  dart.setStaticFieldSignature(_engine.ScreenOrientation, () => ['_instance', 'lockTypeAny', 'lockTypeNatural', 'lockTypeLandscape', 'lockTypePortrait', 'lockTypePortraitPrimary', 'lockTypePortraitSecondary', 'lockTypeLandscapePrimary', 'lockTypeLandscapeSecondary']);
  dart.defineLazy(_engine.ScreenOrientation, {
    /*_engine.ScreenOrientation._instance*/get _instance() {
      return C[853] || CT.C853;
    },
    /*_engine.ScreenOrientation.lockTypeAny*/get lockTypeAny() {
      return "any";
    },
    /*_engine.ScreenOrientation.lockTypeNatural*/get lockTypeNatural() {
      return "natural";
    },
    /*_engine.ScreenOrientation.lockTypeLandscape*/get lockTypeLandscape() {
      return "landscape";
    },
    /*_engine.ScreenOrientation.lockTypePortrait*/get lockTypePortrait() {
      return "portrait";
    },
    /*_engine.ScreenOrientation.lockTypePortraitPrimary*/get lockTypePortraitPrimary() {
      return "portrait-primary";
    },
    /*_engine.ScreenOrientation.lockTypePortraitSecondary*/get lockTypePortraitSecondary() {
      return "portrait-secondary";
    },
    /*_engine.ScreenOrientation.lockTypeLandscapePrimary*/get lockTypeLandscapePrimary() {
      return "landscape-primary";
    },
    /*_engine.ScreenOrientation.lockTypeLandscapeSecondary*/get lockTypeLandscapeSecondary() {
      return "landscape-secondary";
    }
  }, false);
  _engine.DomProgressEvent = class DomProgressEvent {
    static new(type) {
      if (type == null) dart.nullFailed(I[270], 466, 35, "type");
      return T$10.DomProgressEvent()[_as](new dart.global.ProgressEvent(js_interop['StringToJSString|get#toJS'](type)));
    }
    static ['_#new#tearOff'](type) {
      if (type == null) dart.nullFailed(I[270], 466, 35, "type");
      return _engine.DomProgressEvent.new(type);
    }
  };
  _engine.HttpFetchResponse = class HttpFetchResponse extends core.Object {};
  (_engine.HttpFetchResponse.new = function() {
    ;
  }).prototype = _engine.HttpFetchResponse.prototype;
  dart.addRtiResources(_engine.HttpFetchResponse, ["_engine|HttpFetchResponse"]);
  dart.setLibraryUri(_engine.HttpFetchResponse, I[220]);
  var url$0 = dart.privateName(_engine, "HttpFetchResponseImpl.url");
  var _domResponse$ = dart.privateName(_engine, "_domResponse");
  _engine.HttpFetchResponseImpl = class HttpFetchResponseImpl extends core.Object {
    get url() {
      return this[url$0];
    }
    set url(value) {
      super.url = value;
    }
    static ['_#_#tearOff'](url, _domResponse) {
      if (url == null) dart.nullFailed(I[270], 1709, 32, "url");
      if (_domResponse == null) dart.nullFailed(I[270], 1709, 42, "_domResponse");
      return new _engine.HttpFetchResponseImpl.__(url, _domResponse);
    }
    get status() {
      return _engine['DomResponseExtension|get#status'](this[_domResponse$]);
    }
    get contentLength() {
      let header = _engine['DomHeadersExtension|get'](js_util.getProperty(T$10.DomHeaders(), this[_domResponse$], "headers"), "Content-Length");
      if (header == null) {
        return null;
      }
      return core.int.tryParse(header);
    }
    get hasPayload() {
      let accepted = dart.notNull(this.status) >= 200 && dart.notNull(this.status) < 300;
      let fileUri = this.status === 0;
      let notModified = this.status === 304;
      let unknownRedirect = dart.notNull(this.status) > 307 && dart.notNull(this.status) < 400;
      return accepted || fileUri || notModified || unknownRedirect;
    }
    get payload() {
      if (!dart.test(this.hasPayload)) {
        dart.throw(new _engine.HttpFetchNoPayloadError.new(this.url, {status: this.status}));
      }
      return new _engine.HttpFetchPayloadImpl.__(this[_domResponse$]);
    }
  };
  (_engine.HttpFetchResponseImpl.__ = function(url, _domResponse) {
    if (url == null) dart.nullFailed(I[270], 1709, 32, "url");
    if (_domResponse == null) dart.nullFailed(I[270], 1709, 42, "_domResponse");
    this[url$0] = url;
    this[_domResponse$] = _domResponse;
    ;
  }).prototype = _engine.HttpFetchResponseImpl.prototype;
  dart.addRtiResources(_engine.HttpFetchResponseImpl, ["_engine|HttpFetchResponseImpl", "_engine|HttpFetchResponse"]);
  dart.setGetterSignature(_engine.HttpFetchResponseImpl, () => dart.global.Object.setPrototypeOf({
    status: T$.int(),
    contentLength: T$.intN(),
    hasPayload: T$.bool(),
    payload: T$10.HttpFetchPayload()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.HttpFetchResponseImpl))));
  dart.setLibraryUri(_engine.HttpFetchResponseImpl, I[220]);
  dart.setFieldSignature(_engine.HttpFetchResponseImpl, () => dart.global.Object.setPrototypeOf({
    url: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_domResponse$]: {type: T$10.DomResponse(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HttpFetchResponseImpl))));
  var url$1 = dart.privateName(_engine, "MockHttpFetchResponse.url");
  var status$ = dart.privateName(_engine, "MockHttpFetchResponse.status");
  var contentLength$ = dart.privateName(_engine, "MockHttpFetchResponse.contentLength");
  var _payload = dart.privateName(_engine, "_payload");
  _engine.MockHttpFetchResponse = class MockHttpFetchResponse extends core.Object {
    get url() {
      return this[url$1];
    }
    set url(value) {
      super.url = value;
    }
    get status() {
      return this[status$];
    }
    set status(value) {
      super.status = value;
    }
    get contentLength() {
      return this[contentLength$];
    }
    set contentLength(value) {
      super.contentLength = value;
    }
    static ['_#new#tearOff'](opts) {
      let url = opts && 'url' in opts ? opts.url : null;
      if (url == null) dart.nullFailed(I[270], 1749, 19, "url");
      let status = opts && 'status' in opts ? opts.status : null;
      if (status == null) dart.nullFailed(I[270], 1750, 19, "status");
      let contentLength = opts && 'contentLength' in opts ? opts.contentLength : null;
      let payload = opts && 'payload' in opts ? opts.payload : null;
      return new _engine.MockHttpFetchResponse.new({url: url, status: status, contentLength: contentLength, payload: payload});
    }
    get hasPayload() {
      return this[_payload] != null;
    }
    get payload() {
      return dart.nullCheck(this[_payload]);
    }
  };
  (_engine.MockHttpFetchResponse.new = function(opts) {
    let url = opts && 'url' in opts ? opts.url : null;
    if (url == null) dart.nullFailed(I[270], 1749, 19, "url");
    let status = opts && 'status' in opts ? opts.status : null;
    if (status == null) dart.nullFailed(I[270], 1750, 19, "status");
    let contentLength = opts && 'contentLength' in opts ? opts.contentLength : null;
    let payload = opts && 'payload' in opts ? opts.payload : null;
    this[url$1] = url;
    this[status$] = status;
    this[contentLength$] = contentLength;
    this[_payload] = payload;
    ;
  }).prototype = _engine.MockHttpFetchResponse.prototype;
  dart.addRtiResources(_engine.MockHttpFetchResponse, ["_engine|MockHttpFetchResponse", "_engine|HttpFetchResponse"]);
  dart.setGetterSignature(_engine.MockHttpFetchResponse, () => dart.global.Object.setPrototypeOf({
    hasPayload: T$.bool(),
    payload: T$10.HttpFetchPayload()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.MockHttpFetchResponse))));
  dart.setLibraryUri(_engine.MockHttpFetchResponse, I[220]);
  dart.setFieldSignature(_engine.MockHttpFetchResponse, () => dart.global.Object.setPrototypeOf({
    [_payload]: {type: T$10.HttpFetchPayloadN(), isConst: false, isFinal: true, libraryUri: I[220]},
    url: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    status: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    contentLength: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MockHttpFetchResponse))));
  _engine.HttpFetchPayload = class HttpFetchPayload extends core.Object {};
  (_engine.HttpFetchPayload.new = function() {
    ;
  }).prototype = _engine.HttpFetchPayload.prototype;
  dart.addRtiResources(_engine.HttpFetchPayload, ["_engine|HttpFetchPayload"]);
  dart.setLibraryUri(_engine.HttpFetchPayload, I[220]);
  _engine.HttpFetchPayloadImpl = class HttpFetchPayloadImpl extends core.Object {
    static ['_#_#tearOff'](_domResponse) {
      if (_domResponse == null) dart.nullFailed(I[270], 1794, 31, "_domResponse");
      return new _engine.HttpFetchPayloadImpl.__(_domResponse);
    }
    read(T, callback) {
      if (callback == null) dart.nullFailed(I[270], 1799, 43, "callback");
      return async.async(T$.void(), (function* read() {
        let stream = js_util.getProperty(T$10._DomReadableStream(), this[_domResponse$], "body");
        let reader = T$10._DomStreamReader()[_as](stream.getReader());
        while (true) {
          let chunk = (yield _engine['_DomStreamReaderExtension|read'](reader));
          if (dart.test(_engine['_DomStreamChunkExtension|get#done'](chunk))) {
            break;
          }
          callback(T[_as](js_util.getProperty(T$.ObjectN(), chunk, "value")));
        }
      }).bind(this));
    }
    asByteBuffer() {
      return async.async(T$0.ByteBuffer(), (function* asByteBuffer() {
        return T$0.ByteBuffer()[_as](dart.nullCheck(yield _engine['DomResponseExtension|arrayBuffer'](this[_domResponse$])));
      }).bind(this));
    }
    json() {
      return _engine['DomResponseExtension|json'](this[_domResponse$]);
    }
    text() {
      return _engine['DomResponseExtension|text'](this[_domResponse$]);
    }
  };
  (_engine.HttpFetchPayloadImpl.__ = function(_domResponse) {
    if (_domResponse == null) dart.nullFailed(I[270], 1794, 31, "_domResponse");
    this[_domResponse$] = _domResponse;
    ;
  }).prototype = _engine.HttpFetchPayloadImpl.prototype;
  dart.addRtiResources(_engine.HttpFetchPayloadImpl, ["_engine|HttpFetchPayloadImpl", "_engine|HttpFetchPayload"]);
  dart.setMethodSignature(_engine.HttpFetchPayloadImpl, () => dart.global.Object.setPrototypeOf({
    read: T$10.FnToFutureOfvoid$2(),
    asByteBuffer: T$10.VoidToFutureOfByteBuffer(),
    json: T$.VoidToFuture(),
    text: T$2.VoidToFutureOfString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HttpFetchPayloadImpl))));
  dart.setMethodsDefaultTypeArgSignature(_engine.HttpFetchPayloadImpl, () => dart.global.Object.setPrototypeOf({read: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_engine.HttpFetchPayloadImpl))));
  dart.setLibraryUri(_engine.HttpFetchPayloadImpl, I[220]);
  dart.setFieldSignature(_engine.HttpFetchPayloadImpl, () => dart.global.Object.setPrototypeOf({[_domResponse$]: {type: T$10.DomResponse(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HttpFetchPayloadImpl))));
  var _byteBuffer = dart.privateName(_engine, "_byteBuffer");
  var _chunkSize = dart.privateName(_engine, "_chunkSize");
  _engine.MockHttpFetchPayload = class MockHttpFetchPayload extends core.Object {
    static ['_#new#tearOff'](opts) {
      let byteBuffer = opts && 'byteBuffer' in opts ? opts.byteBuffer : null;
      if (byteBuffer == null) dart.nullFailed(I[270], 1831, 25, "byteBuffer");
      let chunkSize = opts && 'chunkSize' in opts ? opts.chunkSize : null;
      return new _engine.MockHttpFetchPayload.new({byteBuffer: byteBuffer, chunkSize: chunkSize});
    }
    read(T, callback) {
      if (callback == null) dart.nullFailed(I[270], 1840, 43, "callback");
      return async.async(T$.void(), (function* read() {
        let totalLength = this[_byteBuffer][$lengthInBytes];
        let currentIndex = 0;
        while (currentIndex < dart.notNull(totalLength)) {
          let chunkSize = math.min(T$.int(), this[_chunkSize], dart.notNull(totalLength) - currentIndex);
          let chunk = typed_data.Uint8List.sublistView(this[_byteBuffer][$asByteData](), currentIndex, currentIndex + chunkSize);
          callback(T[_as](js_interop['Uint8ListToJSUint8Array|get#toJS'](chunk)));
          currentIndex = currentIndex + chunkSize;
        }
      }).bind(this));
    }
    asByteBuffer() {
      return async.async(T$0.ByteBuffer(), (function* asByteBuffer() {
        return this[_byteBuffer];
      }).bind(this));
    }
    json() {
      return async.async(T$.dynamic(), function* json() {
        return dart.throw(new core.AssertionError.new("json not supported by mock"));
      });
    }
    text() {
      return async.async(T$.String(), function* text() {
        return dart.throw(new core.AssertionError.new("text not supported by mock"));
      });
    }
  };
  (_engine.MockHttpFetchPayload.new = function(opts) {
    let t$36532;
    let byteBuffer = opts && 'byteBuffer' in opts ? opts.byteBuffer : null;
    if (byteBuffer == null) dart.nullFailed(I[270], 1831, 25, "byteBuffer");
    let chunkSize = opts && 'chunkSize' in opts ? opts.chunkSize : null;
    this[_byteBuffer] = byteBuffer;
    this[_chunkSize] = (t$36532 = chunkSize, t$36532 == null ? 64 : t$36532);
    ;
  }).prototype = _engine.MockHttpFetchPayload.prototype;
  dart.addRtiResources(_engine.MockHttpFetchPayload, ["_engine|MockHttpFetchPayload", "_engine|HttpFetchPayload"]);
  dart.setMethodSignature(_engine.MockHttpFetchPayload, () => dart.global.Object.setPrototypeOf({
    read: T$10.FnToFutureOfvoid$2(),
    asByteBuffer: T$10.VoidToFutureOfByteBuffer(),
    json: T$.VoidToFuture(),
    text: T$2.VoidToFutureOfString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MockHttpFetchPayload))));
  dart.setMethodsDefaultTypeArgSignature(_engine.MockHttpFetchPayload, () => dart.global.Object.setPrototypeOf({read: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_engine.MockHttpFetchPayload))));
  dart.setLibraryUri(_engine.MockHttpFetchPayload, I[220]);
  dart.setFieldSignature(_engine.MockHttpFetchPayload, () => dart.global.Object.setPrototypeOf({
    [_byteBuffer]: {type: T$0.ByteBuffer(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_chunkSize]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MockHttpFetchPayload))));
  var url$2 = dart.privateName(_engine, "HttpFetchNoPayloadError.url");
  var status$0 = dart.privateName(_engine, "HttpFetchNoPayloadError.status");
  _engine.HttpFetchNoPayloadError = class HttpFetchNoPayloadError extends core.Object {
    get url() {
      return this[url$2];
    }
    set url(value) {
      super.url = value;
    }
    get status() {
      return this[status$0];
    }
    set status(value) {
      super.status = value;
    }
    static ['_#new#tearOff'](url, opts) {
      if (url == null) dart.nullFailed(I[270], 1873, 32, "url");
      let status = opts && 'status' in opts ? opts.status : null;
      if (status == null) dart.nullFailed(I[270], 1873, 52, "status");
      return new _engine.HttpFetchNoPayloadError.new(url, {status: status});
    }
    toString() {
      return "Flutter Web engine failed to fetch \"" + dart.str(this.url) + "\". HTTP request succeeded, " + "but the server responded with HTTP status " + dart.str(this.status) + ".";
    }
  };
  (_engine.HttpFetchNoPayloadError.new = function(url, opts) {
    if (url == null) dart.nullFailed(I[270], 1873, 32, "url");
    let status = opts && 'status' in opts ? opts.status : null;
    if (status == null) dart.nullFailed(I[270], 1873, 52, "status");
    this[url$2] = url;
    this[status$0] = status;
    ;
  }).prototype = _engine.HttpFetchNoPayloadError.prototype;
  dart.addRtiResources(_engine.HttpFetchNoPayloadError, ["_engine|HttpFetchNoPayloadError", "core|Exception"]);
  dart.setLibraryUri(_engine.HttpFetchNoPayloadError, I[220]);
  dart.setFieldSignature(_engine.HttpFetchNoPayloadError, () => dart.global.Object.setPrototypeOf({
    url: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    status: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HttpFetchNoPayloadError))));
  dart.defineExtensionMethods(_engine.HttpFetchNoPayloadError, ['toString']);
  var url$3 = dart.privateName(_engine, "HttpFetchError.url");
  var requestError$ = dart.privateName(_engine, "HttpFetchError.requestError");
  _engine.HttpFetchError = class HttpFetchError extends core.Object {
    get url() {
      return this[url$3];
    }
    set url(value) {
      super.url = value;
    }
    get requestError() {
      return this[requestError$];
    }
    set requestError(value) {
      super.requestError = value;
    }
    static ['_#new#tearOff'](url, opts) {
      if (url == null) dart.nullFailed(I[270], 1899, 23, "url");
      let requestError = opts && 'requestError' in opts ? opts.requestError : null;
      if (requestError == null) dart.nullFailed(I[270], 1899, 43, "requestError");
      return new _engine.HttpFetchError.new(url, {requestError: requestError});
    }
    toString() {
      return "Flutter Web engine failed to complete HTTP request to fetch " + "\"" + dart.str(this.url) + "\": " + dart.str(this.requestError);
    }
  };
  (_engine.HttpFetchError.new = function(url, opts) {
    if (url == null) dart.nullFailed(I[270], 1899, 23, "url");
    let requestError = opts && 'requestError' in opts ? opts.requestError : null;
    if (requestError == null) dart.nullFailed(I[270], 1899, 43, "requestError");
    this[url$3] = url;
    this[requestError$] = requestError;
    ;
  }).prototype = _engine.HttpFetchError.prototype;
  dart.addRtiResources(_engine.HttpFetchError, ["_engine|HttpFetchError", "core|Exception"]);
  dart.setLibraryUri(_engine.HttpFetchError, I[220]);
  dart.setFieldSignature(_engine.HttpFetchError, () => dart.global.Object.setPrototypeOf({
    url: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    requestError: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HttpFetchError))));
  dart.defineExtensionMethods(_engine.HttpFetchError, ['toString']);
  _engine.DomException = class DomException {};
  dart.defineLazy(_engine.DomException, {
    /*_engine.DomException.notSupported*/get notSupported() {
      return "NotSupportedError";
    }
  }, false);
  var type$6 = dart.privateName(_engine, "DomSubscription.type");
  var target$ = dart.privateName(_engine, "DomSubscription.target");
  var listener = dart.privateName(_engine, "DomSubscription.listener");
  _engine.DomSubscription = class DomSubscription extends core.Object {
    get type() {
      return this[type$6];
    }
    set type(value) {
      super.type = value;
    }
    get target() {
      return this[target$];
    }
    set target(value) {
      super.target = value;
    }
    get listener() {
      return this[listener];
    }
    set listener(value) {
      super.listener = value;
    }
    static ['_#new#tearOff'](target, typeString, dartListener) {
      if (target == null) dart.nullFailed(I[270], 3091, 12, "target");
      if (typeString == null) dart.nullFailed(I[270], 3091, 27, "typeString");
      if (dartListener == null) dart.nullFailed(I[270], 3091, 60, "dartListener");
      return new _engine.DomSubscription.new(target, typeString, dartListener);
    }
    cancel() {
      return this.target.removeEventListener(this.type, this.listener);
    }
  };
  (_engine.DomSubscription.new = function(target, typeString, dartListener) {
    if (target == null) dart.nullFailed(I[270], 3091, 12, "target");
    if (typeString == null) dart.nullFailed(I[270], 3091, 27, "typeString");
    if (dartListener == null) dart.nullFailed(I[270], 3091, 60, "dartListener");
    this[target$] = target;
    this[type$6] = js_interop['StringToJSString|get#toJS'](typeString);
    this[listener] = _engine.createDomEventListener(dartListener);
    this.target.addEventListener(this.type, this.listener);
  }).prototype = _engine.DomSubscription.prototype;
  dart.addRtiResources(_engine.DomSubscription, ["_engine|DomSubscription"]);
  dart.setMethodSignature(_engine.DomSubscription, () => dart.global.Object.setPrototypeOf({cancel: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DomSubscription))));
  dart.setLibraryUri(_engine.DomSubscription, I[220]);
  dart.setFieldSignature(_engine.DomSubscription, () => dart.global.Object.setPrototypeOf({
    type: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    target: {type: T$10.DomEventTarget(), isConst: false, isFinal: true, libraryUri: I[220]},
    listener: {type: T$9.DomEventListener(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DomSubscription))));
  var x$4 = dart.privateName(_engine, "DomPoint.x");
  var y$4 = dart.privateName(_engine, "DomPoint.y");
  _engine.DomPoint = class DomPoint extends core.Object {
    get x() {
      return this[x$4];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$4];
    }
    set y(value) {
      super.y = value;
    }
    static ['_#new#tearOff'](x, y) {
      if (x == null) dart.nullFailed(I[270], 3105, 17, "x");
      if (y == null) dart.nullFailed(I[270], 3105, 25, "y");
      return new _engine.DomPoint.new(x, y);
    }
  };
  (_engine.DomPoint.new = function(x, y) {
    if (x == null) dart.nullFailed(I[270], 3105, 17, "x");
    if (y == null) dart.nullFailed(I[270], 3105, 25, "y");
    this[x$4] = x;
    this[y$4] = y;
    ;
  }).prototype = _engine.DomPoint.prototype;
  dart.addRtiResources(_engine.DomPoint, ["_engine|DomPoint"]);
  dart.setLibraryUri(_engine.DomPoint, I[220]);
  dart.setFieldSignature(_engine.DomPoint, () => dart.global.Object.setPrototypeOf({
    x: {type: T$.num(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.num(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DomPoint))));
  _engine._DomListIterator$ = dart.generic(T => {
    var __t$_DomListIteratorOfT = () => (__t$_DomListIteratorOfT = dart.constFn(T[_eval]("_engine|_DomListIterator<0>")))();
    class _DomListIterator extends core.Object {
      static ['_#new#tearOff'](T, list) {
        if (list == null) dart.nullFailed(I[270], 3426, 25, "list");
        return new (_engine._DomListIterator$(T)).new(list);
      }
      moveNext() {
        this.index = dart.notNull(this.index) + 1;
        if (dart.notNull(this.index) > dart.notNull(_engine['DomListExtension|get#length'](this.list))) {
          dart.throw(new core.StateError.new("Iterator out of bounds"));
        }
        return dart.notNull(this.index) < dart.notNull(_engine['DomListExtension|get#length'](this.list));
      }
      get current() {
        return T[_as](_engine['DomListExtension|item'](this.list, this.index));
      }
    }
    (_DomListIterator.new = function(list) {
      if (list == null) dart.nullFailed(I[270], 3426, 25, "list");
      this.index = -1;
      this.list = list;
      this.$ti = this.$ti || __t$_DomListIteratorOfT();
      ;
    }).prototype = _DomListIterator.prototype;
    dart.addRtiResources(_DomListIterator, ["_engine|_DomListIterator", "core|Iterator"]);
    dart.setMethodSignature(_DomListIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_DomListIterator))));
    dart.setGetterSignature(_DomListIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(_DomListIterator))));
    dart.setLibraryUri(_DomListIterator, I[220]);
    dart.setFieldSignature(_DomListIterator, () => dart.global.Object.setPrototypeOf({
      list: {type: T$10._DomList(), isConst: false, isFinal: true, libraryUri: I[220]},
      index: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_DomListIterator))));
    return _DomListIterator;
  });
  _engine._DomListIterator = _engine._DomListIterator$();
  _engine._DomListWrapper$ = dart.generic(T => {
    var __t$_DomListWrapperOfT = () => (__t$_DomListWrapperOfT = dart.constFn(T[_eval]("_engine|_DomListWrapper<0>")))();
    var __t$IteratorOfT = () => (__t$IteratorOfT = dart.constFn(T[_eval]("core|Iterator<0>")))();
    var __t$_DomListIteratorOfT = () => (__t$_DomListIteratorOfT = dart.constFn(_engine._DomListIterator$(T)))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(core.Iterable$(T)))();
    class _DomListWrapper extends __t$IterableOfT() {
      static ['_#_#tearOff'](T, list) {
        if (list == null) dart.nullFailed(I[270], 3445, 26, "list");
        return new (_engine._DomListWrapper$(T)).__(list);
      }
      get iterator() {
        return new (__t$_DomListIteratorOfT()).new(this.list);
      }
      get length() {
        return _engine['DomListExtension|get#length'](this.list)[$toInt]();
      }
    }
    (_DomListWrapper.__ = function(list) {
      if (list == null) dart.nullFailed(I[270], 3445, 26, "list");
      this.list = list;
      this.$ti = this.$ti || __t$_DomListWrapperOfT();
      dart.global.Object.getPrototypeOf(_DomListWrapper).new.call(this);
      ;
    }).prototype = _DomListWrapper.prototype;
    dart.addRtiResources(_DomListWrapper, ["_engine|_DomListWrapper"]);
    dart.setGetterSignature(_DomListWrapper, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfT(),
      [$iterator]: __t$IteratorOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_DomListWrapper))));
    dart.setLibraryUri(_DomListWrapper, I[220]);
    dart.setFieldSignature(_DomListWrapper, () => dart.global.Object.setPrototypeOf({list: {type: T$10._DomList(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_DomListWrapper))));
    dart.defineExtensionAccessors(_DomListWrapper, ['iterator', 'length']);
    return _DomListWrapper;
  });
  _engine._DomListWrapper = _engine._DomListWrapper$();
  _engine._DomTouchListIterator$ = dart.generic(T => {
    var __t$_DomTouchListIteratorOfT = () => (__t$_DomTouchListIteratorOfT = dart.constFn(T[_eval]("_engine|_DomTouchListIterator<0>")))();
    class _DomTouchListIterator extends core.Object {
      static ['_#new#tearOff'](T, list) {
        if (list == null) dart.nullFailed(I[270], 3478, 30, "list");
        return new (_engine._DomTouchListIterator$(T)).new(list);
      }
      moveNext() {
        this.index = dart.notNull(this.index) + 1;
        if (dart.notNull(this.index) > dart.notNull(_engine['DomTouchListExtension|get#length'](this.list))) {
          dart.throw(new core.StateError.new("Iterator out of bounds"));
        }
        return dart.notNull(this.index) < dart.notNull(_engine['DomTouchListExtension|get#length'](this.list));
      }
      get current() {
        return T[_as](_engine['DomTouchListExtension|item'](this.list, this.index));
      }
    }
    (_DomTouchListIterator.new = function(list) {
      if (list == null) dart.nullFailed(I[270], 3478, 30, "list");
      this.index = -1;
      this.list = list;
      this.$ti = this.$ti || __t$_DomTouchListIteratorOfT();
      ;
    }).prototype = _DomTouchListIterator.prototype;
    dart.addRtiResources(_DomTouchListIterator, ["_engine|_DomTouchListIterator", "core|Iterator"]);
    dart.setMethodSignature(_DomTouchListIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_DomTouchListIterator))));
    dart.setGetterSignature(_DomTouchListIterator, () => dart.global.Object.setPrototypeOf({current: T}, dart.getGetters(dart.global.Object.getPrototypeOf(_DomTouchListIterator))));
    dart.setLibraryUri(_DomTouchListIterator, I[220]);
    dart.setFieldSignature(_DomTouchListIterator, () => dart.global.Object.setPrototypeOf({
      list: {type: T$10._DomTouchList(), isConst: false, isFinal: true, libraryUri: I[220]},
      index: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_DomTouchListIterator))));
    return _DomTouchListIterator;
  });
  _engine._DomTouchListIterator = _engine._DomTouchListIterator$();
  _engine._DomTouchListWrapper$ = dart.generic(T => {
    var __t$_DomTouchListWrapperOfT = () => (__t$_DomTouchListWrapperOfT = dart.constFn(T[_eval]("_engine|_DomTouchListWrapper<0>")))();
    var __t$IteratorOfT = () => (__t$IteratorOfT = dart.constFn(T[_eval]("core|Iterator<0>")))();
    var __t$_DomTouchListIteratorOfT = () => (__t$_DomTouchListIteratorOfT = dart.constFn(_engine._DomTouchListIterator$(T)))();
    var __t$IterableOfT = () => (__t$IterableOfT = dart.constFn(core.Iterable$(T)))();
    class _DomTouchListWrapper extends __t$IterableOfT() {
      static ['_#_#tearOff'](T, list) {
        if (list == null) dart.nullFailed(I[270], 3497, 31, "list");
        return new (_engine._DomTouchListWrapper$(T)).__(list);
      }
      get iterator() {
        return new (__t$_DomTouchListIteratorOfT()).new(this.list);
      }
      get length() {
        return _engine['DomTouchListExtension|get#length'](this.list)[$toInt]();
      }
    }
    (_DomTouchListWrapper.__ = function(list) {
      if (list == null) dart.nullFailed(I[270], 3497, 31, "list");
      this.list = list;
      this.$ti = this.$ti || __t$_DomTouchListWrapperOfT();
      dart.global.Object.getPrototypeOf(_DomTouchListWrapper).new.call(this);
      ;
    }).prototype = _DomTouchListWrapper.prototype;
    dart.addRtiResources(_DomTouchListWrapper, ["_engine|_DomTouchListWrapper"]);
    dart.setGetterSignature(_DomTouchListWrapper, () => dart.global.Object.setPrototypeOf({
      iterator: __t$IteratorOfT(),
      [$iterator]: __t$IteratorOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_DomTouchListWrapper))));
    dart.setLibraryUri(_DomTouchListWrapper, I[220]);
    dart.setFieldSignature(_DomTouchListWrapper, () => dart.global.Object.setPrototypeOf({list: {type: T$10._DomTouchList(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_DomTouchListWrapper))));
    dart.defineExtensionAccessors(_DomTouchListWrapper, ['iterator', 'length']);
    return _DomTouchListWrapper;
  });
  _engine._DomTouchListWrapper = _engine._DomTouchListWrapper$();
  var __DomIteratorWrapper__current = dart.privateName(_engine, "_#DomIteratorWrapper#_current");
  var __DomIteratorWrapper__current_isSet = dart.privateName(_engine, "_#DomIteratorWrapper#_current#isSet");
  var _iterator$0 = dart.privateName(_engine, "_iterator");
  _engine.DomIteratorWrapper$ = dart.generic(T => {
    var __t$DomIteratorWrapperOfT = () => (__t$DomIteratorWrapperOfT = dart.constFn(T[_eval]("_engine|DomIteratorWrapper<0>")))();
    var __t$TN = () => (__t$TN = dart.constFn(T[_eval]("0?")))();
    class DomIteratorWrapper extends core.Object {
      static ['_#new#tearOff'](T, _iterator) {
        if (_iterator == null) dart.nullFailed(I[270], 3587, 27, "_iterator");
        return new (_engine.DomIteratorWrapper$(T)).new(_iterator);
      }
      get [_current$3]() {
        let t$36532;
        return dart.test(this[__DomIteratorWrapper__current_isSet]) ? (t$36532 = this[__DomIteratorWrapper__current], t$36532) : dart.throw(new _internal.LateError.fieldNI("_current"));
      }
      set [_current$3](_current$35param) {
        this[__DomIteratorWrapper__current_isSet] = true;
        this[__DomIteratorWrapper__current] = _current$35param;
      }
      get current() {
        return this[_current$3];
      }
      moveNext() {
        let result = T$10.DomIteratorResult()[_as](this[_iterator$0].next());
        if (dart.test(_engine['DomIteratorResultExtension|get#done'](result))) {
          return false;
        }
        this[_current$3] = T[_as](js_util.getProperty(T$.Object(), result, "value"));
        return true;
      }
    }
    (DomIteratorWrapper.new = function(_iterator) {
      if (_iterator == null) dart.nullFailed(I[270], 3587, 27, "_iterator");
      this[__DomIteratorWrapper__current] = null;
      this[__DomIteratorWrapper__current_isSet] = false;
      this[_iterator$0] = _iterator;
      this.$ti = this.$ti || __t$DomIteratorWrapperOfT();
      ;
    }).prototype = DomIteratorWrapper.prototype;
    dart.addRtiResources(DomIteratorWrapper, ["_engine|DomIteratorWrapper", "core|Iterator"]);
    dart.setMethodSignature(DomIteratorWrapper, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(DomIteratorWrapper))));
    dart.setGetterSignature(DomIteratorWrapper, () => dart.global.Object.setPrototypeOf({
      [_current$3]: T,
      current: T
    }, dart.getGetters(dart.global.Object.getPrototypeOf(DomIteratorWrapper))));
    dart.setSetterSignature(DomIteratorWrapper, () => dart.global.Object.setPrototypeOf({[_current$3]: T}, dart.getSetters(dart.global.Object.getPrototypeOf(DomIteratorWrapper))));
    dart.setLibraryUri(DomIteratorWrapper, I[220]);
    dart.setFieldSignature(DomIteratorWrapper, () => dart.global.Object.setPrototypeOf({
      [_iterator$0]: {type: T$10.DomIterator(), isConst: false, isFinal: true, libraryUri: I[220]},
      [__DomIteratorWrapper__current]: {type: __t$TN(), isConst: false, isFinal: false},
      [__DomIteratorWrapper__current_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(DomIteratorWrapper))));
    return DomIteratorWrapper;
  });
  _engine.DomIteratorWrapper = _engine.DomIteratorWrapper$();
  _engine.EngineCanvas = class EngineCanvas extends core.Object {
    dispose() {
      this.clear();
    }
  };
  (_engine.EngineCanvas.new = function() {
    ;
  }).prototype = _engine.EngineCanvas.prototype;
  dart.addRtiResources(_engine.EngineCanvas, ["_engine|EngineCanvas"]);
  dart.setMethodSignature(_engine.EngineCanvas, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineCanvas))));
  dart.setLibraryUri(_engine.EngineCanvas, I[220]);
  var transform$ = dart.privateName(_engine, "SaveStackEntry.transform");
  var clipStack$ = dart.privateName(_engine, "SaveStackEntry.clipStack");
  _engine.SaveStackEntry = class SaveStackEntry extends core.Object {
    get transform() {
      return this[transform$];
    }
    set transform(value) {
      super.transform = value;
    }
    get clipStack() {
      return this[clipStack$];
    }
    set clipStack(value) {
      super.clipStack = value;
    }
    static ['_#new#tearOff'](opts) {
      let transform = opts && 'transform' in opts ? opts.transform : null;
      if (transform == null) dart.nullFailed(I[271], 101, 19, "transform");
      let clipStack = opts && 'clipStack' in opts ? opts.clipStack : null;
      return new _engine.SaveStackEntry.new({transform: transform, clipStack: clipStack});
    }
  };
  (_engine.SaveStackEntry.new = function(opts) {
    let transform = opts && 'transform' in opts ? opts.transform : null;
    if (transform == null) dart.nullFailed(I[271], 101, 19, "transform");
    let clipStack = opts && 'clipStack' in opts ? opts.clipStack : null;
    this[transform$] = transform;
    this[clipStack$] = clipStack;
    ;
  }).prototype = _engine.SaveStackEntry.prototype;
  dart.addRtiResources(_engine.SaveStackEntry, ["_engine|SaveStackEntry"]);
  dart.setLibraryUri(_engine.SaveStackEntry, I[220]);
  dart.setFieldSignature(_engine.SaveStackEntry, () => dart.global.Object.setPrototypeOf({
    transform: {type: T$9.Matrix4(), isConst: false, isFinal: true, libraryUri: I[220]},
    clipStack: {type: T$9.ListNOfSaveClipEntry(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SaveStackEntry))));
  var rect$0 = dart.privateName(_engine, "SaveClipEntry.rect");
  var rrect$0 = dart.privateName(_engine, "SaveClipEntry.rrect");
  var path$2 = dart.privateName(_engine, "SaveClipEntry.path");
  var currentTransform$ = dart.privateName(_engine, "SaveClipEntry.currentTransform");
  _engine.SaveClipEntry = class SaveClipEntry extends core.Object {
    get rect() {
      return this[rect$0];
    }
    set rect(value) {
      super.rect = value;
    }
    get rrect() {
      return this[rrect$0];
    }
    set rrect(value) {
      super.rrect = value;
    }
    get path() {
      return this[path$2];
    }
    set path(value) {
      super.path = value;
    }
    get currentTransform() {
      return this[currentTransform$];
    }
    set currentTransform(value) {
      super.currentTransform = value;
    }
    static ['_#rect#tearOff'](rect, currentTransform) {
      if (currentTransform == null) dart.nullFailed(I[271], 111, 38, "currentTransform");
      return new _engine.SaveClipEntry.rect(rect, currentTransform);
    }
    static ['_#rrect#tearOff'](rrect, currentTransform) {
      if (currentTransform == null) dart.nullFailed(I[271], 114, 40, "currentTransform");
      return new _engine.SaveClipEntry.rrect(rrect, currentTransform);
    }
    static ['_#path#tearOff'](path, currentTransform) {
      if (currentTransform == null) dart.nullFailed(I[271], 117, 38, "currentTransform");
      return new _engine.SaveClipEntry.path(path, currentTransform);
    }
  };
  (_engine.SaveClipEntry.rect = function(rect, currentTransform) {
    if (currentTransform == null) dart.nullFailed(I[271], 111, 38, "currentTransform");
    this[rect$0] = rect;
    this[currentTransform$] = currentTransform;
    this[rrect$0] = null;
    this[path$2] = null;
    ;
  }).prototype = _engine.SaveClipEntry.prototype;
  (_engine.SaveClipEntry.rrect = function(rrect, currentTransform) {
    if (currentTransform == null) dart.nullFailed(I[271], 114, 40, "currentTransform");
    this[rrect$0] = rrect;
    this[currentTransform$] = currentTransform;
    this[rect$0] = null;
    this[path$2] = null;
    ;
  }).prototype = _engine.SaveClipEntry.prototype;
  (_engine.SaveClipEntry.path = function(path, currentTransform) {
    if (currentTransform == null) dart.nullFailed(I[271], 117, 38, "currentTransform");
    this[path$2] = path;
    this[currentTransform$] = currentTransform;
    this[rect$0] = null;
    this[rrect$0] = null;
    ;
  }).prototype = _engine.SaveClipEntry.prototype;
  dart.addRtiResources(_engine.SaveClipEntry, ["_engine|SaveClipEntry"]);
  dart.setLibraryUri(_engine.SaveClipEntry, I[220]);
  dart.setFieldSignature(_engine.SaveClipEntry, () => dart.global.Object.setPrototypeOf({
    rect: {type: T$9.RectN$1(), isConst: false, isFinal: true, libraryUri: I[198]},
    rrect: {type: T$9.RRectN(), isConst: false, isFinal: true, libraryUri: I[198]},
    path: {type: T$9.PathN(), isConst: false, isFinal: true, libraryUri: I[198]},
    currentTransform: {type: T$9.Matrix4(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SaveClipEntry))));
  var _clipStack = dart.privateName(_engine, "_clipStack");
  _engine.SaveStackTracking = class SaveStackTracking extends _engine.EngineCanvas {};
  _engine.SaveStackTracking[dart.mixinOn] = EngineCanvas => class SaveStackTracking extends EngineCanvas {
    get isClipped() {
      return this[_clipStack] != null;
    }
    clear() {
      this[_saveStack][$clear]();
      this[_clipStack] = null;
      this[_currentTransform] = new _engine.Matrix4.identity();
    }
    get currentTransform() {
      return this[_currentTransform];
    }
    save() {
      this[_saveStack][$add](new _engine.SaveStackEntry.new({transform: this[_currentTransform].clone(), clipStack: this[_clipStack] == null ? null : G$.ListOfSaveClipEntry().from(dart.nullCheck(this[_clipStack]))}));
    }
    restore() {
      if (dart.test(this[_saveStack][$isEmpty])) {
        return;
      }
      let entry = this[_saveStack][$removeLast]();
      this[_currentTransform] = entry.transform;
      this[_clipStack] = entry.clipStack;
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[271], 183, 25, "dx");
      if (dy == null) dart.nullFailed(I[271], 183, 36, "dy");
      this[_currentTransform].translate(dx, dy);
    }
    scale(sx, sy) {
      if (sx == null) dart.nullFailed(I[271], 191, 21, "sx");
      if (sy == null) dart.nullFailed(I[271], 191, 32, "sy");
      this[_currentTransform].scale(sx, sy);
    }
    rotate(radians) {
      if (radians == null) dart.nullFailed(I[271], 199, 22, "radians");
      this[_currentTransform].rotate(_engine.kUnitZ, radians);
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[271], 207, 20, "sx");
      if (sy == null) dart.nullFailed(I[271], 207, 31, "sy");
      let skewMatrix = new _engine.Matrix4.identity();
      let storage = skewMatrix.storage;
      storage[$_set](1, sy);
      storage[$_set](4, sx);
      this[_currentTransform].multiply(skewMatrix);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[271], 219, 30, "matrix4");
      this[_currentTransform].multiply(new _engine.Matrix4.fromFloat32List(matrix4));
    }
    clipRect(rect, op) {
      if (rect == null) dart.nullFailed(I[271], 227, 25, "rect");
      if (op == null) dart.nullFailed(I[271], 227, 41, "op");
      this[_clipStack] == null ? this[_clipStack] = G$.JSArrayOfSaveClipEntry().of([]) : null;
      dart.nullCheck(this[_clipStack])[$add](new _engine.SaveClipEntry.rect(rect, this[_currentTransform].clone()));
    }
    clipRRect(rrect) {
      if (rrect == null) dart.nullFailed(I[271], 236, 27, "rrect");
      this[_clipStack] == null ? this[_clipStack] = G$.JSArrayOfSaveClipEntry().of([]) : null;
      dart.nullCheck(this[_clipStack])[$add](new _engine.SaveClipEntry.rrect(rrect, this[_currentTransform].clone()));
    }
    clipPath(path) {
      if (path == null) dart.nullFailed(I[271], 245, 25, "path");
      this[_clipStack] == null ? this[_clipStack] = G$.JSArrayOfSaveClipEntry().of([]) : null;
      dart.nullCheck(this[_clipStack])[$add](new _engine.SaveClipEntry.path(path, this[_currentTransform].clone()));
    }
  };
  (_engine.SaveStackTracking[dart.mixinNew] = function() {
    this[_saveStack] = G$.JSArrayOfSaveStackEntry().of([]);
    this[_clipStack] = null;
    this[_currentTransform] = new _engine.Matrix4.identity();
  }).prototype = _engine.SaveStackTracking.prototype;
  dart.addRtiResources(_engine.SaveStackTracking, ["_engine|SaveStackTracking"]);
  dart.setMethodSignature(_engine.SaveStackTracking, () => dart.global.Object.setPrototypeOf({
    clear: T$.VoidTovoid(),
    save: T$.VoidTovoid(),
    restore: T$.VoidTovoid(),
    translate: T$9.doubleAnddoubleTovoid(),
    scale: T$9.doubleAnddoubleTovoid(),
    rotate: T$9.doubleTovoid(),
    skew: T$9.doubleAnddoubleTovoid(),
    transform: T$7.Float32ListTovoid(),
    clipRect: T$10.RectAndClipOpTovoid(),
    clipRRect: T$9.RRectTovoid(),
    clipPath: T$9.PathTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SaveStackTracking))));
  dart.setGetterSignature(_engine.SaveStackTracking, () => dart.global.Object.setPrototypeOf({
    isClipped: T$.bool(),
    currentTransform: T$9.Matrix4()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SaveStackTracking))));
  dart.setLibraryUri(_engine.SaveStackTracking, I[220]);
  dart.setFieldSignature(_engine.SaveStackTracking, () => dart.global.Object.setPrototypeOf({
    [_saveStack]: {type: T$9.ListOfSaveStackEntry(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_clipStack]: {type: T$9.ListNOfSaveClipEntry(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentTransform]: {type: T$9.Matrix4(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SaveStackTracking))));
  _engine._SaveElementStackEntry = class _SaveElementStackEntry extends core.Object {
    static ['_#new#tearOff'](opts) {
      let savedElement = opts && 'savedElement' in opts ? opts.savedElement : null;
      if (savedElement == null) dart.nullFailed(I[271], 271, 19, "savedElement");
      let transform = opts && 'transform' in opts ? opts.transform : null;
      if (transform == null) dart.nullFailed(I[271], 272, 19, "transform");
      return new _engine._SaveElementStackEntry.new({savedElement: savedElement, transform: transform});
    }
  };
  (_engine._SaveElementStackEntry.new = function(opts) {
    let savedElement = opts && 'savedElement' in opts ? opts.savedElement : null;
    if (savedElement == null) dart.nullFailed(I[271], 271, 19, "savedElement");
    let transform = opts && 'transform' in opts ? opts.transform : null;
    if (transform == null) dart.nullFailed(I[271], 272, 19, "transform");
    this.savedElement = savedElement;
    this.transform = transform;
    ;
  }).prototype = _engine._SaveElementStackEntry.prototype;
  dart.addRtiResources(_engine._SaveElementStackEntry, ["_engine|_SaveElementStackEntry"]);
  dart.setLibraryUri(_engine._SaveElementStackEntry, I[220]);
  dart.setFieldSignature(_engine._SaveElementStackEntry, () => dart.global.Object.setPrototypeOf({
    savedElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    transform: {type: T$9.Matrix4(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._SaveElementStackEntry))));
  var _saveStack$ = dart.privateName(_engine, "SaveElementStackTracking._saveStack");
  var _elementStack = dart.privateName(_engine, "SaveElementStackTracking._elementStack");
  var _currentTransform$ = dart.privateName(_engine, "SaveElementStackTracking._currentTransform");
  var _elementStack$ = dart.privateName(_engine, "_elementStack");
  _engine.SaveElementStackTracking = class SaveElementStackTracking extends _engine.EngineCanvas {};
  _engine.SaveElementStackTracking[dart.mixinOn] = EngineCanvas => class SaveElementStackTracking extends EngineCanvas {
    get [_saveStack]() {
      return this[_saveStack$];
    }
    set [_saveStack](value) {
      super[_saveStack] = value;
    }
    get [_elementStack$]() {
      return this[_elementStack];
    }
    set [_elementStack$](value) {
      super[_elementStack$] = value;
    }
    get [_currentTransform]() {
      return this[_currentTransform$];
    }
    set [_currentTransform](value) {
      if (value == null) dart.nullFailed(I[271], 314, 11, "_currentTransform");
      this[_currentTransform$] = value;
    }
    get currentElement() {
      return dart.test(this[_elementStack$][$isEmpty]) ? this.rootElement : this[_elementStack$][$last];
    }
    pushElement(element) {
      if (element == null) dart.nullFailed(I[271], 297, 31, "element");
      this[_elementStack$][$add](element);
    }
    clear() {
      this[_saveStack][$clear]();
      this[_elementStack$][$clear]();
      this[_currentTransform] = new _engine.Matrix4.identity();
    }
    get currentTransform() {
      return this[_currentTransform];
    }
    save() {
      this[_saveStack][$add](new _engine._SaveElementStackEntry.new({savedElement: this.currentElement, transform: this[_currentTransform].clone()}));
    }
    restore() {
      if (dart.test(this[_saveStack][$isEmpty])) {
        return;
      }
      let entry = this[_saveStack][$removeLast]();
      this[_currentTransform] = entry.transform;
      while (!dart.equals(this.currentElement, entry.savedElement)) {
        this[_elementStack$][$removeLast]();
      }
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[271], 348, 25, "dx");
      if (dy == null) dart.nullFailed(I[271], 348, 36, "dy");
      this[_currentTransform].translate(dx, dy);
    }
    scale(sx, sy) {
      if (sx == null) dart.nullFailed(I[271], 356, 21, "sx");
      if (sy == null) dart.nullFailed(I[271], 356, 32, "sy");
      this[_currentTransform].scale(sx, sy);
    }
    rotate(radians) {
      if (radians == null) dart.nullFailed(I[271], 364, 22, "radians");
      this[_currentTransform].rotate(_engine.kUnitZ, radians);
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[271], 372, 20, "sx");
      if (sy == null) dart.nullFailed(I[271], 372, 31, "sy");
      let skewMatrix = new _engine.Matrix4.identity();
      let storage = skewMatrix.storage;
      storage[$_set](1, sy);
      storage[$_set](4, sx);
      this[_currentTransform].multiply(skewMatrix);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[271], 386, 30, "matrix4");
      this[_currentTransform].multiply(new _engine.Matrix4.fromFloat32List(matrix4));
    }
  };
  (_engine.SaveElementStackTracking[dart.mixinNew] = function() {
    this[_saveStack$] = G$.JSArrayOf_SaveElementStackEntry().of([]);
    this[_elementStack] = G$.JSArrayOfDomElement().of([]);
    this[_currentTransform$] = new _engine.Matrix4.identity();
  }).prototype = _engine.SaveElementStackTracking.prototype;
  dart.addRtiResources(_engine.SaveElementStackTracking, ["_engine|SaveElementStackTracking"]);
  dart.setMethodSignature(_engine.SaveElementStackTracking, () => dart.global.Object.setPrototypeOf({
    pushElement: T$9.DomElementTovoid(),
    clear: T$.VoidTovoid(),
    save: T$.VoidTovoid(),
    restore: T$.VoidTovoid(),
    translate: T$9.doubleAnddoubleTovoid(),
    scale: T$9.doubleAnddoubleTovoid(),
    rotate: T$9.doubleTovoid(),
    skew: T$9.doubleAnddoubleTovoid(),
    transform: T$7.Float32ListTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SaveElementStackTracking))));
  dart.setGetterSignature(_engine.SaveElementStackTracking, () => dart.global.Object.setPrototypeOf({
    currentElement: T$9.DomElement(),
    currentTransform: T$9.Matrix4()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SaveElementStackTracking))));
  dart.setLibraryUri(_engine.SaveElementStackTracking, I[220]);
  dart.setFieldSignature(_engine.SaveElementStackTracking, () => dart.global.Object.setPrototypeOf({
    [_saveStack]: {type: T$10.ListOf_SaveElementStackEntry(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_elementStack$]: {type: T$10.ListOfDomElement(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_currentTransform]: {type: T$9.Matrix4(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SaveElementStackTracking))));
  _engine.FallbackFontRegistry = class FallbackFontRegistry extends core.Object {};
  (_engine.FallbackFontRegistry.new = function() {
    ;
  }).prototype = _engine.FallbackFontRegistry.prototype;
  dart.addRtiResources(_engine.FallbackFontRegistry, ["_engine|FallbackFontRegistry"]);
  dart.setLibraryUri(_engine.FallbackFontRegistry, I[220]);
  var registry$ = dart.privateName(_engine, "FontFallbackManager.registry");
  var codePointsWithNoKnownFont = dart.privateName(_engine, "FontFallbackManager.codePointsWithNoKnownFont");
  var knownCoveredCodePoints = dart.privateName(_engine, "FontFallbackManager.knownCoveredCodePoints");
  var fallbackFonts$ = dart.privateName(_engine, "FontFallbackManager.fallbackFonts");
  var globalFontFallbacks = dart.privateName(_engine, "FontFallbackManager.globalFontFallbacks");
  var __FontFallbackManager_downloadQueue = dart.privateName(_engine, "_#FontFallbackManager#downloadQueue");
  var __FontFallbackManager_downloadQueue_isSet = dart.privateName(_engine, "_#FontFallbackManager#downloadQueue#isSet");
  var _idleFuture = dart.privateName(_engine, "_idleFuture");
  var _codePointsToCheckAgainstFallbackFonts = dart.privateName(_engine, "_codePointsToCheckAgainstFallbackFonts");
  var _scheduledCodePointCheck = dart.privateName(_engine, "_scheduledCodePointCheck");
  var __FontFallbackManager_fontComponents = dart.privateName(_engine, "_#FontFallbackManager#fontComponents");
  var __FontFallbackManager_fontComponents_isSet = dart.privateName(_engine, "_#FontFallbackManager#fontComponents#isSet");
  var __FontFallbackManager_codePointToComponents = dart.privateName(_engine, "_#FontFallbackManager#codePointToComponents");
  var __FontFallbackManager_codePointToComponents_isSet = dart.privateName(_engine, "_#FontFallbackManager#codePointToComponents#isSet");
  var _notoSansSC = dart.privateName(_engine, "_notoSansSC");
  var _notoSansTC = dart.privateName(_engine, "_notoSansTC");
  var _notoSansHK = dart.privateName(_engine, "_notoSansHK");
  var _notoSansJP = dart.privateName(_engine, "_notoSansJP");
  var _notoSansKR = dart.privateName(_engine, "_notoSansKR");
  var _notoSymbols = dart.privateName(_engine, "_notoSymbols");
  var _ensureFallbackFonts = dart.privateName(_engine, "_ensureFallbackFonts");
  var _selectFont = dart.privateName(_engine, "_selectFont");
  var _decodeFontComponents = dart.privateName(_engine, "_decodeFontComponents");
  var _decodeFontSet = dart.privateName(_engine, "_decodeFontSet");
  _engine.FontFallbackManager = class FontFallbackManager extends core.Object {
    get registry() {
      return this[registry$];
    }
    set registry(value) {
      super.registry = value;
    }
    get codePointsWithNoKnownFont() {
      return this[codePointsWithNoKnownFont];
    }
    set codePointsWithNoKnownFont(value) {
      super.codePointsWithNoKnownFont = value;
    }
    get knownCoveredCodePoints() {
      return this[knownCoveredCodePoints];
    }
    set knownCoveredCodePoints(value) {
      super.knownCoveredCodePoints = value;
    }
    get fallbackFonts() {
      return this[fallbackFonts$];
    }
    set fallbackFonts(value) {
      super.fallbackFonts = value;
    }
    get globalFontFallbacks() {
      return this[globalFontFallbacks];
    }
    set globalFontFallbacks(value) {
      super.globalFontFallbacks = value;
    }
    static new(registry) {
      if (registry == null) dart.nullFailed(I[272], 16, 52, "registry");
      return new _engine.FontFallbackManager.__(registry, _engine.getFallbackFontList(_engine.configuration.useColorEmoji));
    }
    static ['_#new#tearOff'](registry) {
      if (registry == null) dart.nullFailed(I[272], 16, 52, "registry");
      return _engine.FontFallbackManager.new(registry);
    }
    static ['_#_#tearOff'](registry, fallbackFonts) {
      if (registry == null) dart.nullFailed(I[272], 22, 30, "registry");
      if (fallbackFonts == null) dart.nullFailed(I[272], 22, 45, "fallbackFonts");
      return new _engine.FontFallbackManager.__(registry, fallbackFonts);
    }
    get downloadQueue() {
      let t$36532;
      return dart.test(this[__FontFallbackManager_downloadQueue_isSet]) ? (t$36532 = this[__FontFallbackManager_downloadQueue], t$36532) : dart.throw(new _internal.LateError.fieldNI("downloadQueue"));
    }
    set downloadQueue(downloadQueue$35param) {
      if (downloadQueue$35param == null) dart.nullFailed(I[272], 34, 40, "downloadQueue#param");
      if (dart.test(this[__FontFallbackManager_downloadQueue_isSet]))
        dart.throw(new _internal.LateError.fieldAI("downloadQueue"));
      else {
        this[__FontFallbackManager_downloadQueue_isSet] = true;
        this[__FontFallbackManager_downloadQueue] = downloadQueue$35param;
      }
    }
    debugWhenIdle() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_idleFuture];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[272], 67, 12, "() {\n      result = _idleFuture;\n      return true;\n    }()");
      if (result != null) {
        return dart.nullCheck(result);
      }
      dart.throw(new core.UnimplementedError.new());
    }
    ensureFontsSupportText(text, fontFamilies) {
      if (text == null) dart.nullFailed(I[272], 81, 38, "text");
      if (fontFamilies == null) dart.nullFailed(I[272], 81, 57, "fontFamilies");
      if (dart.test(_engine.debugDisableFontFallbacks)) {
        return;
      }
      let runesToCheck = G$.LinkedHashSetOfint().new();
      for (let rune of text[$runes]) {
        if (!(dart.notNull(rune) < 160 || dart.test(this.knownCoveredCodePoints.contains(rune)) || dart.test(this.codePointsWithNoKnownFont.contains(rune)))) {
          runesToCheck.add(rune);
        }
      }
      if (dart.test(runesToCheck[$isEmpty])) {
        return;
      }
      let codePoints = runesToCheck[$toList]();
      let missingCodePoints = this.registry.getMissingCodePoints(codePoints, fontFamilies);
      if (dart.test(missingCodePoints[$isNotEmpty])) {
        this.addMissingCodePoints(codePoints);
      }
    }
    addMissingCodePoints(codePoints) {
      if (codePoints == null) dart.nullFailed(I[272], 115, 39, "codePoints");
      this[_codePointsToCheckAgainstFallbackFonts].addAll(codePoints);
      if (!dart.test(this[_scheduledCodePointCheck])) {
        this[_scheduledCodePointCheck] = true;
        this[_idleFuture] = G.FutureOfvoid().delayed(core.Duration.zero, dart.fn(() => async.async(T$.void(), (function*() {
          this[_ensureFallbackFonts]();
          this[_scheduledCodePointCheck] = false;
          yield this.downloadQueue.waitForIdle();
        }).bind(this)), T$.VoidToFutureOfvoid()));
      }
    }
    [_ensureFallbackFonts]() {
      this[_scheduledCodePointCheck] = false;
      if (dart.test(this[_codePointsToCheckAgainstFallbackFonts][$isEmpty])) {
        return;
      }
      let codePoints = this[_codePointsToCheckAgainstFallbackFonts][$toList]();
      this[_codePointsToCheckAgainstFallbackFonts].clear();
      this.findFontsForMissingCodePoints(codePoints);
    }
    registerFallbackFont(family) {
      if (family == null) dart.nullFailed(I[272], 142, 36, "family");
      if (family === "Noto Color Emoji" || family === "Noto Emoji") {
        if (this.globalFontFallbacks[$first] === "Roboto") {
          this.globalFontFallbacks[$insert](1, family);
        } else {
          this.globalFontFallbacks[$insert](0, family);
        }
      } else {
        this.globalFontFallbacks[$add](family);
      }
    }
    findFontsForMissingCodePoints(codePoints) {
      if (codePoints == null) dart.nullFailed(I[272], 166, 48, "codePoints");
      let missingCodePoints = G.JSArrayOfint().of([]);
      let requiredComponents = G$.JSArrayOfFallbackFontComponent().of([]);
      let candidateFonts = G$.JSArrayOfNotoFont().of([]);
      for (let codePoint of codePoints) {
        let component = this.codePointToComponents.lookup(codePoint);
        if (dart.test(component.fonts[$isEmpty])) {
          missingCodePoints[$add](codePoint);
        } else {
          if (component.coverCount === 0) {
            requiredComponents[$add](component);
          }
          component.coverCount = dart.notNull(component.coverCount) + 1;
        }
      }
      for (let component of requiredComponents) {
        for (let font of component.fonts) {
          if (font.coverCount === 0) {
            candidateFonts[$add](font);
          }
          font.coverCount = dart.notNull(font.coverCount) + dart.notNull(component.coverCount);
          font.coverComponents[$add](component);
        }
      }
      let selectedFonts = G$.JSArrayOfNotoFont().of([]);
      while (dart.test(candidateFonts[$isNotEmpty])) {
        let selectedFont = this[_selectFont](candidateFonts);
        selectedFonts[$add](selectedFont);
        for (let component of (() => {
          let t$36532 = G$.ListOfFallbackFontComponent().of(selectedFont.coverComponents);
          return t$36532;
        })()) {
          for (let font of component.fonts) {
            font.coverCount = dart.notNull(font.coverCount) - dart.notNull(component.coverCount);
            font.coverComponents[$remove](component);
          }
          component.coverCount = 0;
        }
        if (!(selectedFont.coverCount === 0)) dart.assertFailed(null, I[272], 218, 14, "selectedFont.coverCount == 0");
        if (!dart.test(selectedFont.coverComponents[$isEmpty])) dart.assertFailed(null, I[272], 219, 14, "selectedFont.coverComponents.isEmpty");
        candidateFonts[$removeWhere](dart.fn(font => {
          if (font == null) dart.nullFailed(I[272], 222, 44, "font");
          return font.coverCount === 0;
        }, T$10.NotoFontTobool()));
      }
      selectedFonts[$forEach](dart.bind(this.downloadQueue, 'add'));
      if (dart.test(missingCodePoints[$isNotEmpty])) {
        if (!dart.test(this.downloadQueue.isPending)) {
          _engine.printWarning("Could not find a set of Noto fonts to display all missing characters. Please add a font asset for the missing characters. See: https://flutter.dev/docs/cookbook/design/fonts");
          this.codePointsWithNoKnownFont.addAll(missingCodePoints);
        }
      }
    }
    [_selectFont](fonts) {
      if (fonts == null) dart.nullFailed(I[272], 240, 39, "fonts");
      let maxCodePointsCovered = -1;
      let bestFonts = G$.JSArrayOfNotoFont().of([]);
      let bestFont = null;
      for (let font of fonts) {
        if (dart.notNull(font.coverCount) > dart.notNull(maxCodePointsCovered)) {
          bestFonts[$clear]();
          bestFonts[$add](font);
          bestFont = font;
          maxCodePointsCovered = font.coverCount;
        } else if (font.coverCount == maxCodePointsCovered) {
          bestFonts[$add](font);
          if (dart.notNull(font.index) < dart.notNull(dart.nullCheck(bestFont).index)) {
            bestFont = font;
          }
        }
      }
      if (dart.notNull(bestFonts[$length]) > 1) {
        if (dart.test(bestFonts[$every](dart.fn(font => {
          if (font == null) dart.nullFailed(I[272], 265, 37, "font");
          return dart.equals(font, this[_notoSansSC]) || dart.equals(font, this[_notoSansTC]) || dart.equals(font, this[_notoSansHK]) || dart.equals(font, this[_notoSansJP]) || dart.equals(font, this[_notoSansKR]);
        }, T$10.NotoFontTobool())))) {
          let language = _engine['DomNavigatorExtension|get#language'](js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator"));
          if (language === "zh-Hans" || language === "zh-CN" || language === "zh-SG" || language === "zh-MY") {
            if (dart.test(bestFonts[$contains](this[_notoSansSC]))) {
              bestFont = this[_notoSansSC];
            }
          } else if (language === "zh-Hant" || language === "zh-TW" || language === "zh-MO") {
            if (dart.test(bestFonts[$contains](this[_notoSansTC]))) {
              bestFont = this[_notoSansTC];
            }
          } else if (language === "zh-HK") {
            if (dart.test(bestFonts[$contains](this[_notoSansHK]))) {
              bestFont = this[_notoSansHK];
            }
          } else if (language === "ja") {
            if (dart.test(bestFonts[$contains](this[_notoSansJP]))) {
              bestFont = this[_notoSansJP];
            }
          } else if (language === "ko") {
            if (dart.test(bestFonts[$contains](this[_notoSansKR]))) {
              bestFont = this[_notoSansKR];
            }
          } else if (dart.test(bestFonts[$contains](this[_notoSansSC]))) {
            bestFont = this[_notoSansSC];
          }
        } else {
          if (dart.test(bestFonts[$contains](this[_notoSymbols]))) {
            bestFont = this[_notoSymbols];
          } else if (dart.test(bestFonts[$contains](this[_notoSansSC]))) {
            bestFont = this[_notoSansSC];
          }
        }
      }
      return dart.nullCheck(bestFont);
    }
    get fontComponents() {
      let t$36534;
      if (!dart.test(this[__FontFallbackManager_fontComponents_isSet])) {
        let t$36533 = this[_decodeFontComponents](_engine.encodedFontSets);
        if (dart.test(this[__FontFallbackManager_fontComponents_isSet])) dart.throw(new _internal.LateError.fieldADI("fontComponents"));
        this[__FontFallbackManager_fontComponents] = t$36533;
        this[__FontFallbackManager_fontComponents_isSet] = true;
      }
      t$36534 = this[__FontFallbackManager_fontComponents];
      return t$36534;
    }
    get codePointToComponents() {
      let t$36535;
      if (!dart.test(this[__FontFallbackManager_codePointToComponents_isSet])) {
        let t$36534 = G$._UnicodePropertyLookupOfFallbackFontComponent().fromPackedData(_engine.encodedFontSetRanges, this.fontComponents);
        if (dart.test(this[__FontFallbackManager_codePointToComponents_isSet])) dart.throw(new _internal.LateError.fieldADI("codePointToComponents"));
        this[__FontFallbackManager_codePointToComponents] = t$36534;
        this[__FontFallbackManager_codePointToComponents_isSet] = true;
      }
      t$36535 = this[__FontFallbackManager_codePointToComponents];
      return t$36535;
    }
    [_decodeFontComponents](data) {
      if (data == null) dart.nullFailed(I[272], 321, 60, "data");
      return (() => {
        let t$36535 = G$.JSArrayOfFallbackFontComponent().of([]);
        for (let componentData of data[$split](","))
          t$36535.push(new _engine.FallbackFontComponent.new(this[_decodeFontSet](componentData)));
        return t$36535;
      })();
    }
    [_decodeFontSet](data) {
      if (data == null) dart.nullFailed(I[272], 328, 40, "data");
      let result = G$.JSArrayOfNotoFont().of([]);
      let previousIndex = -1;
      let prefix = 0;
      for (let i = 0; i < data.length; i = i + 1) {
        let code = data[$codeUnitAt](i);
        if (97 <= code && code < 97 + 26) {
          let delta = prefix * 26 + (code - 97);
          let index = previousIndex + delta + 1;
          result[$add](this.fallbackFonts[$_get](index));
          previousIndex = index;
          prefix = 0;
        } else if (48 <= code && code < 48 + 10) {
          prefix = prefix * 10 + (code - 48);
        } else {
          dart.throw(new core.StateError.new("Unreachable"));
        }
      }
      return result;
    }
  };
  (_engine.FontFallbackManager.__ = function(registry, fallbackFonts) {
    if (registry == null) dart.nullFailed(I[272], 22, 30, "registry");
    if (fallbackFonts == null) dart.nullFailed(I[272], 22, 45, "fallbackFonts");
    this[__FontFallbackManager_downloadQueue] = null;
    this[__FontFallbackManager_downloadQueue_isSet] = false;
    this[codePointsWithNoKnownFont] = G$.LinkedHashSetOfint().new();
    this[knownCoveredCodePoints] = G$.LinkedHashSetOfint().new();
    this[_idleFuture] = G.FutureOfvoid().value();
    this[globalFontFallbacks] = G.JSArrayOfString().of(["Roboto"]);
    this[_codePointsToCheckAgainstFallbackFonts] = G$.LinkedHashSetOfint().new();
    this[_scheduledCodePointCheck] = false;
    this[__FontFallbackManager_fontComponents] = null;
    this[__FontFallbackManager_fontComponents_isSet] = false;
    this[__FontFallbackManager_codePointToComponents] = null;
    this[__FontFallbackManager_codePointToComponents_isSet] = false;
    this[registry$] = registry;
    this[fallbackFonts$] = fallbackFonts;
    this[_notoSansSC] = fallbackFonts[$singleWhere](dart.fn(font => {
      if (font == null) dart.nullFailed(I[272], 23, 55, "font");
      return font.name === "Noto Sans SC";
    }, T$10.NotoFontTobool()));
    this[_notoSansTC] = fallbackFonts[$singleWhere](dart.fn(font => {
      if (font == null) dart.nullFailed(I[272], 24, 55, "font");
      return font.name === "Noto Sans TC";
    }, T$10.NotoFontTobool()));
    this[_notoSansHK] = fallbackFonts[$singleWhere](dart.fn(font => {
      if (font == null) dart.nullFailed(I[272], 25, 55, "font");
      return font.name === "Noto Sans HK";
    }, T$10.NotoFontTobool()));
    this[_notoSansJP] = fallbackFonts[$singleWhere](dart.fn(font => {
      if (font == null) dart.nullFailed(I[272], 26, 55, "font");
      return font.name === "Noto Sans JP";
    }, T$10.NotoFontTobool()));
    this[_notoSansKR] = fallbackFonts[$singleWhere](dart.fn(font => {
      if (font == null) dart.nullFailed(I[272], 27, 55, "font");
      return font.name === "Noto Sans KR";
    }, T$10.NotoFontTobool()));
    this[_notoSymbols] = fallbackFonts[$singleWhere](dart.fn(font => {
      if (font == null) dart.nullFailed(I[272], 28, 56, "font");
      return font.name === "Noto Sans Symbols";
    }, T$10.NotoFontTobool()));
    this.downloadQueue = new _engine.FallbackFontDownloadQueue.new(this);
  }).prototype = _engine.FontFallbackManager.prototype;
  dart.addRtiResources(_engine.FontFallbackManager, ["_engine|FontFallbackManager"]);
  dart.setMethodSignature(_engine.FontFallbackManager, () => dart.global.Object.setPrototypeOf({
    debugWhenIdle: T$.VoidToFutureOfvoid(),
    ensureFontsSupportText: T$10.StringAndListOfStringTovoid(),
    addMissingCodePoints: T$.ListOfintTovoid(),
    [_ensureFallbackFonts]: T$.VoidTovoid(),
    registerFallbackFont: T$.StringTovoid(),
    findFontsForMissingCodePoints: T$.ListOfintTovoid(),
    [_selectFont]: T$10.ListOfNotoFontToNotoFont(),
    [_decodeFontComponents]: T$10.StringToListOfFallbackFontComponent(),
    [_decodeFontSet]: T$10.StringToListOfNotoFont()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FontFallbackManager))));
  dart.setStaticMethodSignature(_engine.FontFallbackManager, () => ['new']);
  dart.setGetterSignature(_engine.FontFallbackManager, () => dart.global.Object.setPrototypeOf({
    downloadQueue: T$10.FallbackFontDownloadQueue(),
    fontComponents: T$10.ListOfFallbackFontComponent(),
    codePointToComponents: T$10._UnicodePropertyLookupOfFallbackFontComponent()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FontFallbackManager))));
  dart.setSetterSignature(_engine.FontFallbackManager, () => dart.global.Object.setPrototypeOf({downloadQueue: T$10.FallbackFontDownloadQueue()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.FontFallbackManager))));
  dart.setLibraryUri(_engine.FontFallbackManager, I[220]);
  dart.setFieldSignature(_engine.FontFallbackManager, () => dart.global.Object.setPrototypeOf({
    registry: {type: T$10.FallbackFontRegistry(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__FontFallbackManager_downloadQueue]: {type: T$10.FallbackFontDownloadQueueN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__FontFallbackManager_downloadQueue_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    codePointsWithNoKnownFont: {type: T$9.SetOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    knownCoveredCodePoints: {type: T$9.SetOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    fallbackFonts: {type: T$10.ListOfNotoFont(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_notoSansSC]: {type: T$10.NotoFont(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_notoSansTC]: {type: T$10.NotoFont(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_notoSansHK]: {type: T$10.NotoFont(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_notoSansJP]: {type: T$10.NotoFont(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_notoSansKR]: {type: T$10.NotoFont(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_notoSymbols]: {type: T$10.NotoFont(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_idleFuture]: {type: T$1.FutureOfvoid(), isConst: false, isFinal: false, libraryUri: I[39]},
    globalFontFallbacks: {type: T$0.ListOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_codePointsToCheckAgainstFallbackFonts]: {type: T$9.SetOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_scheduledCodePointCheck]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__FontFallbackManager_fontComponents]: {type: T$10.ListNOfFallbackFontComponent(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__FontFallbackManager_fontComponents_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__FontFallbackManager_codePointToComponents]: {type: T$10._UnicodePropertyLookupNOfFallbackFontComponent(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__FontFallbackManager_codePointToComponents_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FontFallbackManager))));
  var _boundaries$ = dart.privateName(_engine, "_boundaries");
  var _values$0 = dart.privateName(_engine, "_values");
  _engine._UnicodePropertyLookup$ = dart.generic(P => {
    var __t$_UnicodePropertyLookupOfP = () => (__t$_UnicodePropertyLookupOfP = dart.constFn(P[_eval]("_engine|_UnicodePropertyLookup<0>")))();
    var __t$intToP = () => (__t$intToP = dart.constFn(P[_eval]("0(core|int)")))();
    var __t$FnTovoid = () => (__t$FnTovoid = dart.constFn(P[_eval]("~(~(core|int,core|int,0))")))();
    var __t$ListOfP = () => (__t$ListOfP = dart.constFn(P[_eval]("core|List<0>")))();
    class _UnicodePropertyLookup extends core.Object {
      static ['_#_#tearOff'](P, _boundaries, _values) {
        if (_boundaries == null) dart.nullFailed(I[272], 354, 33, "_boundaries");
        if (_values == null) dart.nullFailed(I[272], 354, 51, "_values");
        return new (_engine._UnicodePropertyLookup$(P)).__(_boundaries, _values);
      }
      static fromPackedData(packedData, propertyEnumValues) {
        if (packedData == null) dart.nullFailed(I[272], 357, 12, "packedData");
        if (propertyEnumValues == null) dart.nullFailed(I[272], 358, 13, "propertyEnumValues");
        let boundaries = G.JSArrayOfint().of([]);
        let values = _interceptors.JSArray$(P).of([]);
        let start = 0;
        let prefix = 0;
        let size = 1;
        for (let i = 0; i < packedData.length; i = i + 1) {
          let code = packedData[$codeUnitAt](i);
          if (65 <= code && code < 65 + 26) {
            let index = prefix * 26 + (code - 65);
            let value = propertyEnumValues[$_get](index);
            start = start + size;
            boundaries[$add](start);
            values[$add](value);
            prefix = 0;
            size = 1;
          } else if (97 <= code && code < 97 + 26) {
            size = prefix * 26 + (code - 97) + 2;
            prefix = 0;
          } else if (48 <= code && code < 48 + 10) {
            prefix = prefix * 10 + (code - 48);
          } else {
            dart.throw(new core.StateError.new("Unreachable"));
          }
        }
        if (start !== 1114111 + 1) {
          dart.throw(new core.StateError.new("Bad map size: " + dart.strSafe(start)));
        }
        return new (_engine._UnicodePropertyLookup$(P)).__(boundaries, values);
      }
      static ['_#fromPackedData#tearOff'](P, packedData, propertyEnumValues) {
        if (packedData == null) dart.nullFailed(I[272], 357, 12, "packedData");
        if (propertyEnumValues == null) dart.nullFailed(I[272], 358, 13, "propertyEnumValues");
        return _engine._UnicodePropertyLookup$(P).fromPackedData(packedData, propertyEnumValues);
      }
      get length() {
        return this[_boundaries$][$length];
      }
      lookup(value) {
        if (value == null) dart.nullFailed(I[272], 416, 16, "value");
        if (!(0 <= dart.notNull(value) && dart.notNull(value) <= 1114111)) dart.assertFailed(null, I[272], 417, 12, "0 <= value && value <= kMaxCodePoint");
        if (!(this[_boundaries$][$last] === 1114111 + 1)) dart.assertFailed(null, I[272], 418, 12, "_boundaries.last == kMaxCodePoint + 1");
        let start = 0;
        let end = this[_boundaries$][$length];
        while (true) {
          if (start === end) {
            return this[_values$0][$_get](start);
          }
          let mid = start + ((dart.notNull(end) - start) / 2)[$truncate]();
          if (dart.notNull(value) >= dart.notNull(this[_boundaries$][$_get](mid))) {
            start = mid + 1;
          } else {
            end = mid;
          }
        }
      }
      forEachRange(action) {
        if (action == null) dart.nullFailed(I[272], 435, 64, "action");
        let start = 0;
        for (let i = 0; i < dart.notNull(this[_boundaries$][$length]); i = i + 1) {
          let end = this[_boundaries$][$_get](i);
          let value = this[_values$0][$_get](i);
          action(start, dart.notNull(end) - 1, value);
          start = end;
        }
      }
    }
    (_UnicodePropertyLookup.__ = function(_boundaries, _values) {
      if (_boundaries == null) dart.nullFailed(I[272], 354, 33, "_boundaries");
      if (_values == null) dart.nullFailed(I[272], 354, 51, "_values");
      this[_boundaries$] = _boundaries;
      this[_values$0] = _values;
      this.$ti = this.$ti || __t$_UnicodePropertyLookupOfP();
      ;
    }).prototype = _UnicodePropertyLookup.prototype;
    dart.addRtiResources(_UnicodePropertyLookup, ["_engine|_UnicodePropertyLookup"]);
    dart.setMethodSignature(_UnicodePropertyLookup, () => dart.global.Object.setPrototypeOf({
      lookup: __t$intToP(),
      forEachRange: __t$FnTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_UnicodePropertyLookup))));
    dart.setStaticMethodSignature(_UnicodePropertyLookup, () => ['fromPackedData']);
    dart.setGetterSignature(_UnicodePropertyLookup, () => dart.global.Object.setPrototypeOf({length: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_UnicodePropertyLookup))));
    dart.setLibraryUri(_UnicodePropertyLookup, I[220]);
    dart.setFieldSignature(_UnicodePropertyLookup, () => dart.global.Object.setPrototypeOf({
      [_boundaries$]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_values$0]: {type: __t$ListOfP(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_UnicodePropertyLookup))));
    return _UnicodePropertyLookup;
  });
  _engine._UnicodePropertyLookup = _engine._UnicodePropertyLookup$();
  var fallbackManager$ = dart.privateName(_engine, "FallbackFontDownloadQueue.fallbackManager");
  var downloadedFonts = dart.privateName(_engine, "FallbackFontDownloadQueue.downloadedFonts");
  var pendingFonts = dart.privateName(_engine, "FallbackFontDownloadQueue.pendingFonts");
  var debugOnLoadFontFamily = dart.privateName(_engine, "FallbackFontDownloadQueue.debugOnLoadFontFamily");
  var _idleCompleter = dart.privateName(_engine, "_idleCompleter");
  _engine.FallbackFontDownloadQueue = class FallbackFontDownloadQueue extends core.Object {
    get fallbackManager() {
      return this[fallbackManager$];
    }
    set fallbackManager(value) {
      super.fallbackManager = value;
    }
    get downloadedFonts() {
      return this[downloadedFonts];
    }
    set downloadedFonts(value) {
      super.downloadedFonts = value;
    }
    get pendingFonts() {
      return this[pendingFonts];
    }
    set pendingFonts(value) {
      super.pendingFonts = value;
    }
    get debugOnLoadFontFamily() {
      return this[debugOnLoadFontFamily];
    }
    set debugOnLoadFontFamily(value) {
      this[debugOnLoadFontFamily] = value;
    }
    static ['_#new#tearOff'](fallbackManager) {
      if (fallbackManager == null) dart.nullFailed(I[272], 447, 34, "fallbackManager");
      return new _engine.FallbackFontDownloadQueue.new(fallbackManager);
    }
    get fallbackFontUrlPrefix() {
      return _engine.configuration.fontFallbackBaseUrl;
    }
    get isPending() {
      return this.pendingFonts[$isNotEmpty];
    }
    waitForIdle() {
      if (this[_idleCompleter] == null) {
        return G.FutureOfvoid().value();
      } else {
        return dart.nullCheck(this[_idleCompleter]).future;
      }
    }
    add(font) {
      if (font == null) dart.nullFailed(I[272], 471, 21, "font");
      if (dart.test(this.downloadedFonts.contains(font)) || dart.test(this.pendingFonts[$containsKey](font.url))) {
        return;
      }
      let firstInBatch = this.pendingFonts[$isEmpty];
      this.pendingFonts[$_set](font.url, font);
      this[_idleCompleter] == null ? this[_idleCompleter] = G$.CompleterOfvoid().new() : null;
      if (dart.test(firstInBatch)) {
        async.Timer.run(dart.bind(this, 'startDownloads'));
      }
    }
    startDownloads() {
      return async.async(T$.void(), (function* startDownloads() {
        let downloads = new (G$.IdentityMapOfString$FutureOfvoid()).new();
        let downloadedFontFamilies = G.JSArrayOfString().of([]);
        for (let font of this.pendingFonts[$values]) {
          downloads[$_set](font.url, G.FutureOfvoid().new(dart.fn(() => async.async(T$.void(), (function*() {
            let t$36536;
            try {
              let url = dart.str(this.fallbackFontUrlPrefix) + dart.str(font.url);
              t$36536 = this.debugOnLoadFontFamily;
              t$36536 == null ? null : t$36536(font.name);
              yield this.fallbackManager.registry.loadFallbackFont(font.name, url);
              downloadedFontFamilies[$add](font.url);
            } catch (t$36$35e) {
              let e = dart.getThrown(t$36$35e);
              if (T$.Object()[_is](e)) {
                this.pendingFonts[$remove](font.url);
                _engine.printWarning("Failed to load font " + dart.str(font.name) + " at " + dart.str(this.fallbackFontUrlPrefix) + dart.str(font.url));
                _engine.printWarning(dart.toString(e));
                return;
              } else
                throw t$36$35e;
            }
            this.downloadedFonts.add(font);
          }).bind(this)), T$.VoidToFutureOfvoid())));
        }
        yield async.Future.wait(T$.void(), downloads[$values]);
        downloadedFontFamilies[$sort]();
        for (let url of downloadedFontFamilies) {
          let font = dart.nullCheck(this.pendingFonts[$remove](url));
          this.fallbackManager.registerFallbackFont(font.name);
        }
        if (dart.test(this.pendingFonts[$isEmpty])) {
          this.fallbackManager.registry.updateFallbackFontFamilies(this.fallbackManager.globalFontFallbacks);
          _engine.sendFontChangeMessage();
          let idleCompleter = dart.nullCheck(this[_idleCompleter]);
          this[_idleCompleter] = null;
          idleCompleter.complete();
        } else {
          yield this.startDownloads();
        }
      }).bind(this));
    }
  };
  (_engine.FallbackFontDownloadQueue.new = function(fallbackManager) {
    if (fallbackManager == null) dart.nullFailed(I[272], 447, 34, "fallbackManager");
    this[downloadedFonts] = G$.LinkedHashSetOfNotoFont().new();
    this[pendingFonts] = new (G$.IdentityMapOfString$NotoFont()).new();
    this[debugOnLoadFontFamily] = null;
    this[_idleCompleter] = null;
    this[fallbackManager$] = fallbackManager;
    ;
  }).prototype = _engine.FallbackFontDownloadQueue.prototype;
  dart.addRtiResources(_engine.FallbackFontDownloadQueue, ["_engine|FallbackFontDownloadQueue"]);
  dart.setMethodSignature(_engine.FallbackFontDownloadQueue, () => dart.global.Object.setPrototypeOf({
    waitForIdle: T$.VoidToFutureOfvoid(),
    add: T$10.NotoFontTovoid(),
    startDownloads: T$.VoidToFutureOfvoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FallbackFontDownloadQueue))));
  dart.setGetterSignature(_engine.FallbackFontDownloadQueue, () => dart.global.Object.setPrototypeOf({
    fallbackFontUrlPrefix: T$.String(),
    isPending: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FallbackFontDownloadQueue))));
  dart.setLibraryUri(_engine.FallbackFontDownloadQueue, I[220]);
  dart.setFieldSignature(_engine.FallbackFontDownloadQueue, () => dart.global.Object.setPrototypeOf({
    fallbackManager: {type: T$9.FontFallbackManager(), isConst: false, isFinal: true, libraryUri: I[220]},
    downloadedFonts: {type: T$10.SetOfNotoFont(), isConst: false, isFinal: true, libraryUri: I[11]},
    pendingFonts: {type: T$10.MapOfString$NotoFont(), isConst: false, isFinal: true, libraryUri: I[11]},
    debugOnLoadFontFamily: {type: T$3.StringToNvoid(), isConst: false, isFinal: false},
    [_idleCompleter]: {type: T$10.CompleterNOfvoid(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FallbackFontDownloadQueue))));
  var asset$ = dart.privateName(_engine, "FontAsset.asset");
  var descriptors$ = dart.privateName(_engine, "FontAsset.descriptors");
  _engine.FontAsset = class FontAsset extends core.Object {
    get asset() {
      return this[asset$];
    }
    set asset(value) {
      super.asset = value;
    }
    get descriptors() {
      return this[descriptors$];
    }
    set descriptors(value) {
      super.descriptors = value;
    }
    static ['_#new#tearOff'](asset, descriptors) {
      if (asset == null) dart.nullFailed(I[273], 9, 18, "asset");
      if (descriptors == null) dart.nullFailed(I[273], 9, 30, "descriptors");
      return new _engine.FontAsset.new(asset, descriptors);
    }
  };
  (_engine.FontAsset.new = function(asset, descriptors) {
    if (asset == null) dart.nullFailed(I[273], 9, 18, "asset");
    if (descriptors == null) dart.nullFailed(I[273], 9, 30, "descriptors");
    this[asset$] = asset;
    this[descriptors$] = descriptors;
    ;
  }).prototype = _engine.FontAsset.prototype;
  dart.addRtiResources(_engine.FontAsset, ["_engine|FontAsset"]);
  dart.setLibraryUri(_engine.FontAsset, I[220]);
  dart.setFieldSignature(_engine.FontAsset, () => dart.global.Object.setPrototypeOf({
    asset: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    descriptors: {type: T$2.MapOfString$String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FontAsset))));
  var name$21 = dart.privateName(_engine, "FontFamily.name");
  var fontAssets$ = dart.privateName(_engine, "FontFamily.fontAssets");
  _engine.FontFamily = class FontFamily extends core.Object {
    get name() {
      return this[name$21];
    }
    set name(value) {
      super.name = value;
    }
    get fontAssets() {
      return this[fontAssets$];
    }
    set fontAssets(value) {
      super.fontAssets = value;
    }
    static ['_#new#tearOff'](name, fontAssets) {
      if (name == null) dart.nullFailed(I[273], 16, 19, "name");
      if (fontAssets == null) dart.nullFailed(I[273], 16, 30, "fontAssets");
      return new _engine.FontFamily.new(name, fontAssets);
    }
  };
  (_engine.FontFamily.new = function(name, fontAssets) {
    if (name == null) dart.nullFailed(I[273], 16, 19, "name");
    if (fontAssets == null) dart.nullFailed(I[273], 16, 30, "fontAssets");
    this[name$21] = name;
    this[fontAssets$] = fontAssets;
    ;
  }).prototype = _engine.FontFamily.prototype;
  dart.addRtiResources(_engine.FontFamily, ["_engine|FontFamily"]);
  dart.setLibraryUri(_engine.FontFamily, I[220]);
  dart.setFieldSignature(_engine.FontFamily, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontAssets: {type: T$10.ListOfFontAsset(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FontFamily))));
  var families$ = dart.privateName(_engine, "FontManifest.families");
  _engine.FontManifest = class FontManifest extends core.Object {
    get families() {
      return this[families$];
    }
    set families(value) {
      super.families = value;
    }
    static ['_#new#tearOff'](families) {
      if (families == null) dart.nullFailed(I[273], 23, 21, "families");
      return new _engine.FontManifest.new(families);
    }
  };
  (_engine.FontManifest.new = function(families) {
    if (families == null) dart.nullFailed(I[273], 23, 21, "families");
    this[families$] = families;
    ;
  }).prototype = _engine.FontManifest.prototype;
  dart.addRtiResources(_engine.FontManifest, ["_engine|FontManifest"]);
  dart.setLibraryUri(_engine.FontManifest, I[220]);
  dart.setFieldSignature(_engine.FontManifest, () => dart.global.Object.setPrototypeOf({families: {type: T$10.ListOfFontFamily(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FontManifest))));
  var url$4 = dart.privateName(_engine, "FontLoadError.url");
  _engine.FontLoadError = class FontLoadError extends core.Error {
    get url() {
      return this[url$4];
    }
    set url(value) {
      if (value == null) dart.nullFailed(I[273], 79, 10, "url");
      this[url$4] = value;
    }
  };
  (_engine.FontLoadError.new = function(url) {
    if (url == null) dart.nullFailed(I[273], 77, 22, "url");
    this[url$4] = url;
    dart.global.Object.getPrototypeOf(_engine.FontLoadError).new.call(this);
    ;
  }).prototype = _engine.FontLoadError.prototype;
  dart.addRtiResources(_engine.FontLoadError, ["_engine|FontLoadError"]);
  dart.setLibraryUri(_engine.FontLoadError, I[220]);
  dart.setFieldSignature(_engine.FontLoadError, () => dart.global.Object.setPrototypeOf({url: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FontLoadError))));
  _engine.FontNotFoundError = class FontNotFoundError extends _engine.FontLoadError {
    static ['_#new#tearOff'](url) {
      if (url == null) dart.nullFailed(I[273], 84, 27, "url");
      return new _engine.FontNotFoundError.new(url);
    }
    get message() {
      return "Font asset not found at url " + dart.str(this.url) + ".";
    }
  };
  (_engine.FontNotFoundError.new = function(url) {
    if (url == null) dart.nullFailed(I[273], 84, 27, "url");
    dart.global.Object.getPrototypeOf(_engine.FontNotFoundError).new.call(this, url);
    ;
  }).prototype = _engine.FontNotFoundError.prototype;
  dart.addRtiResources(_engine.FontNotFoundError, ["_engine|FontNotFoundError"]);
  dart.setGetterSignature(_engine.FontNotFoundError, () => dart.global.Object.setPrototypeOf({message: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FontNotFoundError))));
  dart.setLibraryUri(_engine.FontNotFoundError, I[220]);
  var error$1 = dart.privateName(_engine, "FontDownloadError.error");
  _engine.FontDownloadError = class FontDownloadError extends _engine.FontLoadError {
    get error() {
      return this[error$1];
    }
    set error(value) {
      this[error$1] = value;
    }
    static ['_#new#tearOff'](url, error) {
      if (url == null) dart.nullFailed(I[273], 91, 27, "url");
      return new _engine.FontDownloadError.new(url, error);
    }
    get message() {
      return "Failed to download font asset at url " + dart.str(this.url) + " with error: " + dart.str(this.error) + ".";
    }
  };
  (_engine.FontDownloadError.new = function(url, error) {
    if (url == null) dart.nullFailed(I[273], 91, 27, "url");
    this[error$1] = error;
    dart.global.Object.getPrototypeOf(_engine.FontDownloadError).new.call(this, url);
    ;
  }).prototype = _engine.FontDownloadError.prototype;
  dart.addRtiResources(_engine.FontDownloadError, ["_engine|FontDownloadError"]);
  dart.setGetterSignature(_engine.FontDownloadError, () => dart.global.Object.setPrototypeOf({message: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FontDownloadError))));
  dart.setLibraryUri(_engine.FontDownloadError, I[220]);
  dart.setFieldSignature(_engine.FontDownloadError, () => dart.global.Object.setPrototypeOf({error: {type: T$.dynamic(), isConst: false, isFinal: false}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FontDownloadError))));
  _engine.FontInvalidDataError = class FontInvalidDataError extends _engine.FontLoadError {
    static ['_#new#tearOff'](url) {
      if (url == null) dart.nullFailed(I[273], 100, 30, "url");
      return new _engine.FontInvalidDataError.new(url);
    }
    get message() {
      return "Invalid data for font asset at url " + dart.str(this.url) + ".";
    }
  };
  (_engine.FontInvalidDataError.new = function(url) {
    if (url == null) dart.nullFailed(I[273], 100, 30, "url");
    dart.global.Object.getPrototypeOf(_engine.FontInvalidDataError).new.call(this, url);
    ;
  }).prototype = _engine.FontInvalidDataError.prototype;
  dart.addRtiResources(_engine.FontInvalidDataError, ["_engine|FontInvalidDataError"]);
  dart.setGetterSignature(_engine.FontInvalidDataError, () => dart.global.Object.setPrototypeOf({message: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FontInvalidDataError))));
  dart.setLibraryUri(_engine.FontInvalidDataError, I[220]);
  var loadedFonts$ = dart.privateName(_engine, "AssetFontsResult.loadedFonts");
  var fontFailures$ = dart.privateName(_engine, "AssetFontsResult.fontFailures");
  _engine.AssetFontsResult = class AssetFontsResult extends core.Object {
    get loadedFonts() {
      return this[loadedFonts$];
    }
    set loadedFonts(value) {
      super.loadedFonts = value;
    }
    get fontFailures() {
      return this[fontFailures$];
    }
    set fontFailures(value) {
      super.fontFailures = value;
    }
    static ['_#new#tearOff'](loadedFonts, fontFailures) {
      if (loadedFonts == null) dart.nullFailed(I[273], 107, 25, "loadedFonts");
      if (fontFailures == null) dart.nullFailed(I[273], 107, 43, "fontFailures");
      return new _engine.AssetFontsResult.new(loadedFonts, fontFailures);
    }
  };
  (_engine.AssetFontsResult.new = function(loadedFonts, fontFailures) {
    if (loadedFonts == null) dart.nullFailed(I[273], 107, 25, "loadedFonts");
    if (fontFailures == null) dart.nullFailed(I[273], 107, 43, "fontFailures");
    this[loadedFonts$] = loadedFonts;
    this[fontFailures$] = fontFailures;
    ;
  }).prototype = _engine.AssetFontsResult.prototype;
  dart.addRtiResources(_engine.AssetFontsResult, ["_engine|AssetFontsResult"]);
  dart.setLibraryUri(_engine.AssetFontsResult, I[220]);
  dart.setFieldSignature(_engine.AssetFontsResult, () => dart.global.Object.setPrototypeOf({
    loadedFonts: {type: T$0.ListOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontFailures: {type: T$10.MapOfString$FontLoadError(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AssetFontsResult))));
  _engine.FlutterFontCollection = class FlutterFontCollection extends core.Object {};
  (_engine.FlutterFontCollection.new = function() {
    ;
  }).prototype = _engine.FlutterFontCollection.prototype;
  dart.addRtiResources(_engine.FlutterFontCollection, ["_engine|FlutterFontCollection"]);
  dart.setLibraryUri(_engine.FlutterFontCollection, I[220]);
  var value$8 = dart.privateName(_engine, "FrameReference.value");
  _engine.FrameReference$ = dart.generic(V => {
    var __t$FrameReferenceOfV = () => (__t$FrameReferenceOfV = dart.constFn(V[_eval]("_engine|FrameReference<0>")))();
    var __t$VN = () => (__t$VN = dart.constFn(V[_eval]("0?")))();
    class FrameReference extends core.Object {
      get value() {
        return this[value$8];
      }
      set value(value) {
        this[value$8] = __t$VN()[_as](value);
      }
      static ['_#new#tearOff'](V, value = null) {
        return new (_engine.FrameReference$(V)).new(value);
      }
    }
    (FrameReference.new = function(value = null) {
      this[value$8] = value;
      this.$ti = this.$ti || __t$FrameReferenceOfV();
      _engine.frameReferences[$add](this);
    }).prototype = FrameReference.prototype;
    dart.addRtiResources(FrameReference, ["_engine|FrameReference"]);
    dart.setLibraryUri(FrameReference, I[220]);
    dart.setFieldSignature(FrameReference, () => dart.global.Object.setPrototypeOf({value: {type: __t$VN(), isConst: false, isFinal: false}}, dart.getFields(dart.global.Object.getPrototypeOf(FrameReference))));
    return FrameReference;
  });
  _engine.FrameReference = _engine.FrameReference$();
  var _addToCache = dart.privateName(_engine, "_addToCache");
  _engine.CrossFrameCache$ = dart.generic(T => {
    var __t$CrossFrameCacheOfT = () => (__t$CrossFrameCacheOfT = dart.constFn(T[_eval]("_engine|CrossFrameCache<0>")))();
    var __t$ListOf_CrossFrameCacheItemOfT = () => (__t$ListOf_CrossFrameCacheItemOfT = dart.constFn(T[_eval]("core|List<_engine|_CrossFrameCacheItem<0>>")))();
    var __t$_CrossFrameCacheItemOfT = () => (__t$_CrossFrameCacheItemOfT = dart.constFn(T[_eval]("_engine|_CrossFrameCacheItem<0>")))();
    var __t$StringAndObjectNAndFnTovoid = () => (__t$StringAndObjectNAndFnTovoid = dart.constFn(T[_eval]("~(core|String,core|Object?[~(0)?])")))();
    var __t$StringAnd_CrossFrameCacheItemOfTTovoid = () => (__t$StringAnd_CrossFrameCacheItemOfTTovoid = dart.constFn(T[_eval]("~(core|String,_engine|_CrossFrameCacheItem<0>)")))();
    var __t$StringToTN = () => (__t$StringToTN = dart.constFn(T[_eval]("0?(core|String)")))();
    var __t$MapNOfString$ListOf_CrossFrameCacheItemOfT = () => (__t$MapNOfString$ListOf_CrossFrameCacheItemOfT = dart.constFn(T[_eval]("core|Map<core|String,core|List<_engine|_CrossFrameCacheItem<0>>>?")))();
    var __t$_CrossFrameCacheItemOfT$ = () => (__t$_CrossFrameCacheItemOfT$ = dart.constFn(_engine._CrossFrameCacheItem$(T)))();
    var __t$IdentityMapOfString$ListOf_CrossFrameCacheItemOfT = () => (__t$IdentityMapOfString$ListOf_CrossFrameCacheItemOfT = dart.constFn(_js_helper.IdentityMap$(T$.String(), __t$ListOf_CrossFrameCacheItemOfT())))();
    var __t$JSArrayOf_CrossFrameCacheItemOfT = () => (__t$JSArrayOf_CrossFrameCacheItemOfT = dart.constFn(_interceptors.JSArray$(__t$_CrossFrameCacheItemOfT())))();
    class CrossFrameCache extends core.Object {
      commitFrame() {
        if (this[_reusablePool] != null) {
          for (let items of dart.nullCheck(this[_reusablePool])[$values]) {
            for (let item of items) {
              item.evict();
            }
          }
        }
        this[_reusablePool] = this[_cache];
        this[_cache] = null;
      }
      cache(key, value, callback = null) {
        if (key == null) dart.nullFailed(I[274], 65, 21, "key");
        T[_as](value);
        this[_addToCache](key, new (__t$_CrossFrameCacheItemOfT$()).new(value, callback));
      }
      [_addToCache](key, item) {
        let t$36540, t$36539, t$36538, t$36537;
        if (key == null) dart.nullFailed(I[274], 69, 27, "key");
        if (item == null) dart.nullFailed(I[274], 69, 56, "item");
        this[_cache] == null ? this[_cache] = new (__t$IdentityMapOfString$ListOf_CrossFrameCacheItemOfT()).new() : null;
        (t$36537 = dart.nullCheck(this[_cache]), t$36538 = key, t$36539 = t$36537[$_get](t$36538), t$36539 == null ? (t$36540 = __t$JSArrayOf_CrossFrameCacheItemOfT().of([]), t$36537[$_set](t$36538, t$36540), t$36540) : t$36539)[$add](item);
      }
      reuse(key) {
        if (key == null) dart.nullFailed(I[274], 75, 19, "key");
        if (this[_reusablePool] == null) {
          return null;
        }
        let items = dart.nullCheck(this[_reusablePool])[$_get](key);
        if (items == null || dart.test(items[$isEmpty])) {
          return null;
        }
        let item = items[$removeAt](0);
        this[_addToCache](key, item);
        return item.value;
      }
      static ['_#new#tearOff'](T) {
        return new (_engine.CrossFrameCache$(T)).new();
      }
    }
    (CrossFrameCache.new = function() {
      this[_cache] = null;
      this[_reusablePool] = null;
      this.$ti = this.$ti || __t$CrossFrameCacheOfT();
      ;
    }).prototype = CrossFrameCache.prototype;
    dart.addRtiResources(CrossFrameCache, ["_engine|CrossFrameCache"]);
    dart.setMethodSignature(CrossFrameCache, () => dart.global.Object.setPrototypeOf({
      commitFrame: T$.VoidTovoid(),
      cache: __t$StringAndObjectNAndFnTovoid(),
      [_addToCache]: __t$StringAnd_CrossFrameCacheItemOfTTovoid(),
      reuse: __t$StringToTN()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(CrossFrameCache))));
    dart.setLibraryUri(CrossFrameCache, I[220]);
    dart.setFieldSignature(CrossFrameCache, () => dart.global.Object.setPrototypeOf({
      [_cache]: {type: __t$MapNOfString$ListOf_CrossFrameCacheItemOfT(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_reusablePool]: {type: __t$MapNOfString$ListOf_CrossFrameCacheItemOfT(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(CrossFrameCache))));
    return CrossFrameCache;
  });
  _engine.CrossFrameCache = _engine.CrossFrameCache$();
  _engine._CrossFrameCacheItem$ = dart.generic(T => {
    var __t$_CrossFrameCacheItemOfT = () => (__t$_CrossFrameCacheItemOfT = dart.constFn(T[_eval]("_engine|_CrossFrameCacheItem<0>")))();
    var __t$TToNvoid = () => (__t$TToNvoid = dart.constFn(T[_eval]("~(0)?")))();
    class _CrossFrameCacheItem extends core.Object {
      static ['_#new#tearOff'](T, value, evictCallback) {
        return new (_engine._CrossFrameCacheItem$(T)).new(value, evictCallback);
      }
      evict() {
        if (this.evictCallback != null) {
          dart.nullCheck(this.evictCallback)(this.value);
        }
      }
    }
    (_CrossFrameCacheItem.new = function(value, evictCallback) {
      this.value = value;
      this.evictCallback = evictCallback;
      this.$ti = this.$ti || __t$_CrossFrameCacheItemOfT();
      ;
    }).prototype = _CrossFrameCacheItem.prototype;
    dart.addRtiResources(_CrossFrameCacheItem, ["_engine|_CrossFrameCacheItem"]);
    dart.setMethodSignature(_CrossFrameCacheItem, () => dart.global.Object.setPrototypeOf({evict: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_CrossFrameCacheItem))));
    dart.setLibraryUri(_CrossFrameCacheItem, I[220]);
    dart.setFieldSignature(_CrossFrameCacheItem, () => dart.global.Object.setPrototypeOf({
      value: {type: T, isConst: false, isFinal: true},
      evictCallback: {type: __t$TToNvoid(), isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_CrossFrameCacheItem))));
    return _CrossFrameCacheItem;
  });
  _engine._CrossFrameCacheItem = _engine._CrossFrameCacheItem$();
  var _vsyncStartMicros = dart.privateName(_engine, "_vsyncStartMicros");
  var _buildStartMicros = dart.privateName(_engine, "_buildStartMicros");
  var _buildFinishMicros = dart.privateName(_engine, "_buildFinishMicros");
  var _rasterStartMicros = dart.privateName(_engine, "_rasterStartMicros");
  var _rasterFinishMicros = dart.privateName(_engine, "_rasterFinishMicros");
  _engine.FrameTimingRecorder = class FrameTimingRecorder extends core.Object {
    static recordCurrentFrameVsync() {
      if (dart.test(_engine.FrameTimingRecorder.frameTimingsEnabled)) {
        _engine.FrameTimingRecorder._currentFrameVsyncStart = _engine.FrameTimingRecorder._nowMicros();
      }
    }
    static recordCurrentFrameBuildStart() {
      if (dart.test(_engine.FrameTimingRecorder.frameTimingsEnabled)) {
        _engine.FrameTimingRecorder._currentFrameBuildStart = _engine.FrameTimingRecorder._nowMicros();
      }
    }
    static get frameTimingsEnabled() {
      return _engine.EnginePlatformDispatcher.instance.onReportTimings != null;
    }
    static _nowMicros() {
      return (dart.notNull(_engine['DomPerformanceExtension|now'](js_util.getProperty(T$10.DomPerformance(), dart.jsInteropNullCheck(dart.global.window), "performance"))) * 1000)[$toInt]();
    }
    recordBuildFinish(buildFinish = null) {
      let t$36537;
      if (!(this[_buildFinishMicros] == null)) dart.assertFailed("can't record build finish more than once", I[275], 62, 12, "_buildFinishMicros == null");
      this[_buildFinishMicros] = (t$36537 = buildFinish, t$36537 == null ? _engine.FrameTimingRecorder._nowMicros() : t$36537);
    }
    recordRasterStart(rasterStart = null) {
      let t$36537;
      if (!(this[_rasterStartMicros] == null)) dart.assertFailed("can't record raster start more than once", I[275], 67, 12, "_rasterStartMicros == null");
      this[_rasterStartMicros] = (t$36537 = rasterStart, t$36537 == null ? _engine.FrameTimingRecorder._nowMicros() : t$36537);
    }
    recordRasterFinish(rasterFinish = null) {
      let t$36537;
      if (!(this[_rasterFinishMicros] == null)) dart.assertFailed("can't record raster finish more than once", I[275], 72, 12, "_rasterFinishMicros == null");
      this[_rasterFinishMicros] = (t$36537 = rasterFinish, t$36537 == null ? _engine.FrameTimingRecorder._nowMicros() : t$36537);
    }
    submitTimings() {
      if (!(this[_buildFinishMicros] != null && this[_rasterStartMicros] != null && this[_rasterFinishMicros] != null)) dart.assertFailed("Attempted to submit an incomplete timings.", I[275], 78, 7, "_buildFinishMicros != null &&\n      _rasterStartMicros != null &&\n      _rasterFinishMicros != null");
      let timing = ui.FrameTiming.new({vsyncStart: this[_vsyncStartMicros], buildStart: this[_buildStartMicros], buildFinish: dart.nullCheck(this[_buildFinishMicros]), rasterStart: dart.nullCheck(this[_rasterStartMicros]), rasterFinish: dart.nullCheck(this[_rasterFinishMicros]), rasterFinishWallTime: dart.nullCheck(this[_rasterFinishMicros])});
      _engine.FrameTimingRecorder._frameTimings[$add](timing);
      let now = _engine.FrameTimingRecorder._nowMicros();
      if (dart.notNull(now) - dart.notNull(_engine.FrameTimingRecorder._frameTimingsLastSubmitTime) > 100000) {
        _engine.FrameTimingRecorder._frameTimingsLastSubmitTime = now;
        _engine.EnginePlatformDispatcher.instance.invokeOnReportTimings(_engine.FrameTimingRecorder._frameTimings);
        _engine.FrameTimingRecorder._frameTimings = G$.JSArrayOfFrameTiming().of([]);
      }
    }
    static ['_#new#tearOff']() {
      return new _engine.FrameTimingRecorder.new();
    }
  };
  (_engine.FrameTimingRecorder.new = function() {
    this[_vsyncStartMicros] = _engine.FrameTimingRecorder._currentFrameVsyncStart;
    this[_buildStartMicros] = _engine.FrameTimingRecorder._currentFrameBuildStart;
    this[_buildFinishMicros] = null;
    this[_rasterStartMicros] = null;
    this[_rasterFinishMicros] = null;
    ;
  }).prototype = _engine.FrameTimingRecorder.prototype;
  dart.addRtiResources(_engine.FrameTimingRecorder, ["_engine|FrameTimingRecorder"]);
  dart.setMethodSignature(_engine.FrameTimingRecorder, () => dart.global.Object.setPrototypeOf({
    recordBuildFinish: T$4.intNTovoid$1(),
    recordRasterStart: T$4.intNTovoid$1(),
    recordRasterFinish: T$4.intNTovoid$1(),
    submitTimings: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FrameTimingRecorder))));
  dart.setStaticMethodSignature(_engine.FrameTimingRecorder, () => ['recordCurrentFrameVsync', 'recordCurrentFrameBuildStart', '_nowMicros']);
  dart.setStaticGetterSignature(_engine.FrameTimingRecorder, () => ['frameTimingsEnabled']);
  dart.setLibraryUri(_engine.FrameTimingRecorder, I[220]);
  dart.setFieldSignature(_engine.FrameTimingRecorder, () => dart.global.Object.setPrototypeOf({
    [_vsyncStartMicros]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_buildStartMicros]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_buildFinishMicros]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_rasterStartMicros]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_rasterFinishMicros]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FrameTimingRecorder))));
  dart.setStaticFieldSignature(_engine.FrameTimingRecorder, () => ['_frameTimings', '_currentFrameVsyncStart', '_currentFrameBuildStart', '_frameTimingsLastSubmitTime', '_kFrameTimingsSubmitInterval']);
  dart.defineLazy(_engine.FrameTimingRecorder, {
    /*_engine.FrameTimingRecorder._frameTimings*/get _frameTimings() {
      return G$.JSArrayOfFrameTiming().of([]);
    },
    set _frameTimings(value) {
      if (value == null) dart.nullFailed(I[275], 18, 31, "_frameTimings");
    },
    /*_engine.FrameTimingRecorder._currentFrameVsyncStart*/get _currentFrameVsyncStart() {
      return 0;
    },
    set _currentFrameVsyncStart(value) {
      if (value == null) dart.nullFailed(I[275], 23, 14, "_currentFrameVsyncStart");
    },
    /*_engine.FrameTimingRecorder._currentFrameBuildStart*/get _currentFrameBuildStart() {
      return 0;
    },
    set _currentFrameBuildStart(value) {
      if (value == null) dart.nullFailed(I[275], 24, 14, "_currentFrameBuildStart");
    },
    /*_engine.FrameTimingRecorder._frameTimingsLastSubmitTime*/get _frameTimingsLastSubmitTime() {
      return _engine.FrameTimingRecorder._nowMicros();
    },
    set _frameTimingsLastSubmitTime(value) {
      if (value == null) dart.nullFailed(I[275], 39, 14, "_frameTimingsLastSubmitTime");
    },
    /*_engine.FrameTimingRecorder._kFrameTimingsSubmitInterval*/get _kFrameTimingsSubmitInterval() {
      return 100000;
    }
  }, false);
  var filter$0 = dart.privateName(_engine, "PersistedBackdropFilter.filter");
  var _childContainer = dart.privateName(_engine, "_childContainer");
  var _filterElement = dart.privateName(_engine, "_filterElement");
  var _svgFilter = dart.privateName(_engine, "_svgFilter");
  var _activeClipBounds = dart.privateName(_engine, "_activeClipBounds");
  var __PersistedBackdropFilter__invertedTransform = dart.privateName(_engine, "_#PersistedBackdropFilter#_invertedTransform");
  var __PersistedBackdropFilter__invertedTransform_isSet = dart.privateName(_engine, "_#PersistedBackdropFilter#_invertedTransform#isSet");
  var _previousTransform = dart.privateName(_engine, "_previousTransform");
  var _invertedTransform = dart.privateName(_engine, "_invertedTransform");
  var _checkForUpdatedAncestorClipElement = dart.privateName(_engine, "_checkForUpdatedAncestorClipElement");
  var _children = dart.privateName(_engine, "_children");
  var _index$1 = dart.privateName(_engine, "_index");
  var _debugValidateContainerNewState = dart.privateName(_engine, "_debugValidateContainerNewState");
  var _updateZeroToMany = dart.privateName(_engine, "_updateZeroToMany");
  var _updateManyToOne = dart.privateName(_engine, "_updateManyToOne");
  var _updateManyToMany = dart.privateName(_engine, "_updateManyToMany");
  var _debugValidateContainerUpdate = dart.privateName(_engine, "_debugValidateContainerUpdate");
  var _matchChildren = dart.privateName(_engine, "_matchChildren");
  var _insertChildDomNodes = dart.privateName(_engine, "_insertChildDomNodes");
  var rootElement = dart.privateName(_engine, "PersistedSurface.rootElement");
  var parent$0 = dart.privateName(_engine, "PersistedSurface.parent");
  var transform = dart.privateName(_engine, "PersistedSurface.transform");
  var projectedClip = dart.privateName(_engine, "PersistedSurface.projectedClip");
  var localClipBounds = dart.privateName(_engine, "PersistedSurface.localClipBounds");
  var _state$0 = dart.privateName(_engine, "_state");
  var _oldLayer = dart.privateName(_engine, "_oldLayer");
  var _debugValidateStateTransition = dart.privateName(_engine, "_debugValidateStateTransition");
  _engine.PersistedSurface = class PersistedSurface extends core.Object {
    get rootElement() {
      return this[rootElement];
    }
    set rootElement(value) {
      this[rootElement] = value;
    }
    get parent() {
      return this[parent$0];
    }
    set parent(value) {
      this[parent$0] = value;
    }
    get transform() {
      return this[transform];
    }
    set transform(value) {
      this[transform] = value;
    }
    get projectedClip() {
      return this[projectedClip];
    }
    set projectedClip(value) {
      this[projectedClip] = value;
    }
    get localClipBounds() {
      return this[localClipBounds];
    }
    set localClipBounds(value) {
      this[localClipBounds] = value;
    }
    get oldLayer() {
      return this[_oldLayer].value;
    }
    get state() {
      return this[_state$0];
    }
    set state(newState) {
      if (newState == null) dart.nullFailed(I[277], 218, 35, "newState");
      if (!(newState != this[_state$0])) dart.assertFailed("Attempted to set state that the surface is already in. This likely indicates a bug in the compositor.", I[277], 219, 12, "newState != _state");
      if (!dart.test(this[_debugValidateStateTransition](newState))) dart.assertFailed(null, I[277], 221, 12, "_debugValidateStateTransition(newState)");
      this[_state$0] = newState;
    }
    [_debugValidateStateTransition](newState) {
      if (newState == null) dart.nullFailed(I[277], 227, 60, "newState");
      if (newState == _engine.PersistedSurfaceState.created) {
        if (!dart.test(this.isReleased)) dart.assertFailed("Only released surfaces may be revived.", I[277], 229, 14, "isReleased");
      } else {
        if (!!dart.test(this.isReleased)) dart.assertFailed("Released surfaces may only be revived, but caught attempt to set " + dart.str(newState) + ".", I[277], 231, 14, "!isReleased");
      }
      if (newState == _engine.PersistedSurfaceState.active) {
        if (!(dart.test(this.isCreated) || dart.test(this.isPendingRetention) || dart.test(this.isPendingUpdate))) dart.assertFailed("Surface is " + dart.str(this.state) + ". Only created, pending retention, and pending update surfaces may be activated.", I[277], 236, 9, "isCreated || isPendingRetention || isPendingUpdate");
      }
      if (newState == _engine.PersistedSurfaceState.pendingRetention) {
        if (!dart.test(this.isActive)) dart.assertFailed("Surface is not active. Only active surfaces may be retained.", I[277], 241, 14, "isActive");
      }
      if (newState == _engine.PersistedSurfaceState.pendingUpdate) {
        if (!dart.test(this.isActive)) dart.assertFailed("Surface is not active. Only active surfaces may be updated.", I[277], 245, 14, "isActive");
      }
      if (newState == _engine.PersistedSurfaceState.released) {
        if (!(dart.test(this.isActive) || dart.test(this.isPendingUpdate))) dart.assertFailed("A surface may only be released if it is currently active or pending update, but it is in " + dart.str(this.state) + ".", I[277], 249, 14, "isActive || isPendingUpdate");
      }
      return true;
    }
    tryRetain() {
      if (!dart.test(_engine.debugAssertSurfaceState(this, _engine.PersistedSurfaceState.active, _engine.PersistedSurfaceState.released))) dart.assertFailed(null, I[277], 262, 12, "debugAssertSurfaceState(\n        this, PersistedSurfaceState.active, PersistedSurfaceState.released)");
      if (dart.test(this.isActive)) {
        this.state = _engine.PersistedSurfaceState.pendingRetention;
      } else {
        this.revive();
      }
    }
    revive() {
      if (!dart.test(_engine.debugAssertSurfaceState(this, _engine.PersistedSurfaceState.released))) dart.assertFailed(null, I[277], 284, 12, "debugAssertSurfaceState(this, PersistedSurfaceState.released)");
      this.state = _engine.PersistedSurfaceState.created;
    }
    get isCreated() {
      return this[_state$0] == _engine.PersistedSurfaceState.created;
    }
    get isActive() {
      return this[_state$0] == _engine.PersistedSurfaceState.active;
    }
    get isPendingRetention() {
      return this[_state$0] == _engine.PersistedSurfaceState.pendingRetention;
    }
    get isPendingUpdate() {
      return this[_state$0] == _engine.PersistedSurfaceState.pendingUpdate;
    }
    get isReleased() {
      return this[_state$0] == _engine.PersistedSurfaceState.released;
    }
    canUpdateAsMatch(oldSurface) {
      if (oldSurface == null) dart.nullFailed(I[277], 312, 42, "oldSurface");
      return dart.test(oldSurface.isActive) && dart.equals(dart.runtimeType(this), dart.runtimeType(oldSurface));
    }
    get childContainer() {
      return this.rootElement;
    }
    build() {
      if (!dart.test(dart.fn(() => {
        let existingElement = this.rootElement;
        if (existingElement != null) {
          dart.throw(new _engine.PersistedSurfaceException.new(this, "Attempted to build a " + dart.str(dart.runtimeType(this)) + ", but it already has an HTML " + "element " + dart.str(_engine['DomElementExtension|get#tagName'](existingElement)) + "."));
        }
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 352, 12, "() {\n      final DomElement? existingElement = rootElement;\n      if (existingElement != null) {\n        throw PersistedSurfaceException(\n          this,\n          'Attempted to build a $runtimeType, but it already has an HTML '\n          'element ${existingElement.tagName}.',\n        );\n      }\n      return true;\n    }()");
      if (!dart.test(_engine.debugAssertSurfaceState(this, _engine.PersistedSurfaceState.created))) dart.assertFailed(null, I[277], 363, 12, "debugAssertSurfaceState(this, PersistedSurfaceState.created)");
      this.rootElement = this.createElement();
      if (!(this.rootElement != null)) dart.assertFailed(null, I[277], 365, 12, "rootElement != null");
      _engine.applyWebkitClipFix(this.rootElement);
      ;
      this.apply();
      this.state = _engine.PersistedSurfaceState.active;
    }
    adoptElements(oldSurface) {
      T$10.PersistedSurface()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[277], 381, 49, "oldSurface");
      if (!(oldSurface.rootElement != null)) dart.assertFailed(null, I[277], 382, 12, "oldSurface.rootElement != null");
      if (!dart.test(_engine.debugAssertSurfaceState(oldSurface, _engine.PersistedSurfaceState.active, _engine.PersistedSurfaceState.pendingUpdate))) dart.assertFailed(null, I[277], 383, 12, "debugAssertSurfaceState(oldSurface, PersistedSurfaceState.active,\n        PersistedSurfaceState.pendingUpdate)");
      if (!dart.test(dart.fn(() => {
        if (dart.test(oldSurface.isPendingUpdate)) {
          let self = T$10.PersistedContainerSurface()[_as](this);
          if (!(self.oldLayer == oldSurface)) dart.assertFailed(null, I[277], 389, 16, "identical(self.oldLayer, oldSurface)");
        }
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 385, 12, "() {\n      if (oldSurface.isPendingUpdate) {\n        final PersistedContainerSurface self =\n            this as PersistedContainerSurface;\n        assert(identical(self.oldLayer, oldSurface));\n      }\n      return true;\n    }()");
      this.rootElement = oldSurface.rootElement;
      ;
      oldSurface.rootElement = null;
      oldSurface.state = _engine.PersistedSurfaceState.released;
    }
    update(oldSurface) {
      T$10.PersistedSurface()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[277], 409, 42, "oldSurface");
      if (!(oldSurface !== this)) dart.assertFailed(null, I[277], 410, 12, "!identical(oldSurface, this)");
      if (!dart.test(_engine.debugAssertSurfaceState(this, _engine.PersistedSurfaceState.created))) dart.assertFailed(null, I[277], 411, 12, "debugAssertSurfaceState(this, PersistedSurfaceState.created)");
      if (!dart.test(_engine.debugAssertSurfaceState(oldSurface, _engine.PersistedSurfaceState.active, _engine.PersistedSurfaceState.pendingUpdate))) dart.assertFailed(null, I[277], 412, 12, "debugAssertSurfaceState(oldSurface, PersistedSurfaceState.active,\n        PersistedSurfaceState.pendingUpdate)");
      this.adoptElements(oldSurface);
      if (!dart.test(dart.fn(() => {
        _engine['DomElementExtension|setAttribute'](dart.nullCheck(this.rootElement), "flt-layer-state", "updated");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 417, 12, "() {\n      rootElement!.setAttribute('flt-layer-state', 'updated');\n      return true;\n    }()");
      this.state = _engine.PersistedSurfaceState.active;
      if (!(this.rootElement != null)) dart.assertFailed(null, I[277], 422, 12, "rootElement != null");
    }
    retain() {
      if (!(this.rootElement != null)) dart.assertFailed(null, I[277], 434, 12, "rootElement != null");
      if (dart.test(this.isPendingRetention)) {
        _engine.retainedSurfaces[$add](this);
      }
      if (!dart.test(dart.fn(() => {
        _engine['DomElementExtension|setAttribute'](dart.nullCheck(this.rootElement), "flt-layer-state", "retained");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 442, 12, "() {\n      rootElement!.setAttribute('flt-layer-state', 'retained');\n      return true;\n    }()");
      ;
    }
    discard() {
      if (!dart.test(_engine.debugAssertSurfaceState(this, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 458, 12, "debugAssertSurfaceState(this, PersistedSurfaceState.active)");
      if (!(this.rootElement != null)) dart.assertFailed(null, I[277], 459, 12, "rootElement != null");
      dart.nullCheck(this.rootElement).remove();
      this.rootElement = null;
      this.state = _engine.PersistedSurfaceState.released;
    }
    dispose() {
    }
    debugValidate(validationErrors) {
      if (validationErrors == null) dart.nullFailed(I[277], 483, 35, "validationErrors");
      if (this.rootElement == null) {
        validationErrors[$add](dart.str(_engine.debugIdentify(this)) + " has null rootElement.");
      }
      if (!dart.test(this.isActive)) {
        validationErrors[$add](dart.str(_engine.debugIdentify(this)) + " is in the wrong state.\n" + "It is in the live DOM tree expectec to be in " + dart.str(_engine.PersistedSurfaceState.active) + ".\n" + "However, it is currently in " + dart.str(this.state) + ".");
      }
    }
    defaultCreateElement(tagName) {
      if (tagName == null) dart.nullFailed(I[277], 499, 42, "tagName");
      let element = _engine.createDomElement(tagName);
      _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "absolute");
      if (!dart.test(dart.fn(() => {
        _engine['DomElementExtension|setAttribute'](element, "flt-layer-state", "new");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 502, 12, "() {\n      element.setAttribute('flt-layer-state', 'new');\n      return true;\n    }()");
      return element;
    }
    get localTransformInverse() {
      return null;
    }
    recomputeTransformAndClip() {
      this.transform = dart.nullCheck(this.parent).transform;
      this.localClipBounds = null;
      this.projectedClip = null;
    }
    preroll(prerollContext) {
      if (prerollContext == null) dart.nullFailed(I[277], 561, 38, "prerollContext");
      this.recomputeTransformAndClip();
    }
    debugPrint(buffer, indent) {
      if (buffer == null) dart.nullFailed(I[277], 566, 32, "buffer");
      if (indent == null) dart.nullFailed(I[277], 566, 44, "indent");
      if (this.rootElement != null) {
        buffer.write("  "[$times](indent) + "<" + _engine['DomElementExtension|get#tagName'](dart.nullCheck(this.rootElement))[$toLowerCase]() + " ");
      } else {
        buffer.write("  "[$times](indent) + "<" + dart.str(dart.runtimeType(this)) + " recycled ");
      }
      this.debugPrintAttributes(buffer);
      buffer.writeln(">");
      this.debugPrintChildren(buffer, indent);
      if (this.rootElement != null) {
        buffer.writeln("  "[$times](indent) + "</" + _engine['DomElementExtension|get#tagName'](dart.nullCheck(this.rootElement))[$toLowerCase]() + ">");
      } else {
        buffer.writeln("  "[$times](indent) + "</" + dart.str(dart.runtimeType(this)) + ">");
      }
    }
    debugPrintAttributes(buffer) {
      if (buffer == null) dart.nullFailed(I[277], 584, 42, "buffer");
      if (this.rootElement != null) {
        buffer.write("@" + dart.str(dart.hashCode(dart.nullCheck(this.rootElement))) + " ");
      }
    }
    debugPrintChildren(buffer, indent) {
      if (buffer == null) dart.nullFailed(I[277], 591, 40, "buffer");
      if (indent == null) dart.nullFailed(I[277], 591, 52, "indent");
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        let log = new core.StringBuffer.new();
        this.debugPrint(log, 0);
        result = dart.toString(log);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 596, 12, "() {\n      final StringBuffer log = StringBuffer();\n      debugPrint(log, 0);\n      result = log.toString();\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PersistedSurface.new = function(oldLayer) {
    this[_index$1] = -1;
    this[_state$0] = _engine.PersistedSurfaceState.created;
    this[rootElement] = null;
    this[parent$0] = null;
    this[transform] = null;
    this[projectedClip] = null;
    this[localClipBounds] = null;
    this[_oldLayer] = new (G$.FrameReferenceOfPersistedSurface()).new(oldLayer != null && dart.test(oldLayer.isActive) ? oldLayer : null);
    ;
  }).prototype = _engine.PersistedSurface.prototype;
  dart.addRtiResources(_engine.PersistedSurface, ["_engine|PersistedSurface", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedSurface, () => dart.global.Object.setPrototypeOf({
    [_debugValidateStateTransition]: T$10.PersistedSurfaceStateTobool(),
    tryRetain: T$.VoidTovoid(),
    revive: T$.VoidTovoid(),
    canUpdateAsMatch: T$10.PersistedSurfaceTobool(),
    build: T$.VoidTovoid(),
    adoptElements: T$.ObjectNTovoid(),
    update: T$.ObjectNTovoid(),
    retain: T$.VoidTovoid(),
    discard: T$.VoidTovoid(),
    dispose: T$.VoidTovoid(),
    debugValidate: T$9.ListOfStringTovoid(),
    defaultCreateElement: T$10.StringToDomElement(),
    recomputeTransformAndClip: T$.VoidTovoid(),
    preroll: T$10.PrerollSurfaceContextTovoid(),
    debugPrint: T$10.StringBufferAndintTovoid(),
    debugPrintAttributes: T$10.StringBufferTovoid(),
    debugPrintChildren: T$10.StringBufferAndintTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedSurface))));
  dart.setGetterSignature(_engine.PersistedSurface, () => dart.global.Object.setPrototypeOf({
    oldLayer: T$10.PersistedSurfaceN(),
    state: T$10.PersistedSurfaceState(),
    isCreated: T$.bool(),
    isActive: T$.bool(),
    isPendingRetention: T$.bool(),
    isPendingUpdate: T$.bool(),
    isReleased: T$.bool(),
    childContainer: T$9.DomElementN(),
    localTransformInverse: T$9.Matrix4N()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PersistedSurface))));
  dart.setSetterSignature(_engine.PersistedSurface, () => dart.global.Object.setPrototypeOf({state: T$10.PersistedSurfaceState()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.PersistedSurface))));
  dart.setLibraryUri(_engine.PersistedSurface, I[220]);
  dart.setFieldSignature(_engine.PersistedSurface, () => dart.global.Object.setPrototypeOf({
    [_oldLayer]: {type: T$10.FrameReferenceOfPersistedSurface(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_index$1]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_state$0]: {type: T$10.PersistedSurfaceState(), isConst: false, isFinal: false, libraryUri: I[220]},
    rootElement: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    parent: {type: T$10.PersistedContainerSurfaceN(), isConst: false, isFinal: false, libraryUri: I[220]},
    transform: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]},
    projectedClip: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    localClipBounds: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedSurface))));
  dart.defineExtensionMethods(_engine.PersistedSurface, ['toString']);
  _engine.PersistedContainerSurface = class PersistedContainerSurface extends _engine.PersistedSurface {
    visitChildren(visitor) {
      if (visitor == null) dart.nullFailed(I[277], 629, 46, "visitor");
      this[_children][$forEach](visitor);
    }
    appendChild(child) {
      if (child == null) dart.nullFailed(I[277], 634, 37, "child");
      if (!dart.test(_engine.debugAssertSurfaceState(child, _engine.PersistedSurfaceState.created, _engine.PersistedSurfaceState.pendingRetention, _engine.PersistedSurfaceState.pendingUpdate))) dart.assertFailed(null, I[277], 635, 12, "debugAssertSurfaceState(\n        child,\n        PersistedSurfaceState.created,\n        PersistedSurfaceState.pendingRetention,\n        PersistedSurfaceState.pendingUpdate)");
      this[_children][$add](child);
      child.parent = this;
    }
    preroll(prerollContext) {
      if (prerollContext == null) dart.nullFailed(I[277], 645, 38, "prerollContext");
      super.preroll(prerollContext);
      let length = this[_children][$length];
      for (let i = 0; i < dart.notNull(length); i = i + 1) {
        this[_children][$_get](i).preroll(prerollContext);
      }
    }
    recomputeTransformAndClip() {
      this.transform = dart.nullCheck(this.parent).transform;
      this.localClipBounds = null;
      this.projectedClip = null;
    }
    build() {
      super.build();
      let len = this[_children][$length];
      let containerElement = this.childContainer;
      for (let i = 0; i < dart.notNull(len); i = i + 1) {
        let child = this[_children][$_get](i);
        if (dart.test(child.isPendingRetention)) {
          if (!(child.rootElement != null)) dart.assertFailed(null, I[277], 670, 16, "child.rootElement != null");
          child.retain();
        } else if (T$10.PersistedContainerSurface()[_is](child) && child.oldLayer != null) {
          let oldLayer = dart.nullCheck(child.oldLayer);
          if (!(oldLayer.rootElement != null)) dart.assertFailed(null, I[277], 674, 16, "oldLayer.rootElement != null");
          if (!dart.test(_engine.debugAssertSurfaceState(oldLayer, _engine.PersistedSurfaceState.pendingUpdate))) dart.assertFailed(null, I[277], 675, 16, "debugAssertSurfaceState(\n            oldLayer, PersistedSurfaceState.pendingUpdate)");
          child.update(T$10.PersistedContainerSurface()[_as](oldLayer));
        } else {
          if (!dart.test(_engine.debugAssertSurfaceState(child, _engine.PersistedSurfaceState.created))) dart.assertFailed(null, I[277], 679, 16, "debugAssertSurfaceState(child, PersistedSurfaceState.created)");
          if (!(child.rootElement == null)) dart.assertFailed(null, I[277], 680, 16, "child.rootElement == null");
          child.build();
        }
        dart.nullCheck(containerElement).append(dart.nullCheck(child.rootElement));
        child[_index$1] = i;
      }
      this[_debugValidateContainerNewState]();
    }
    matchForUpdate(existingSurface) {
      T$10.PersistedContainerSurfaceN()[_as](existingSurface);
      if (!dart.equals(dart.runtimeType(dart.nullCheck(existingSurface)), dart.runtimeType(this))) dart.assertFailed(null, I[277], 691, 12, "existingSurface!.runtimeType == runtimeType");
      return 1.0;
    }
    update(oldSurface) {
      T$10.PersistedContainerSurface()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[277], 704, 41, "oldSurface");
      if (!dart.test(_engine.debugAssertSurfaceState(oldSurface, _engine.PersistedSurfaceState.active, _engine.PersistedSurfaceState.pendingUpdate))) dart.assertFailed(null, I[277], 705, 12, "debugAssertSurfaceState(oldSurface, PersistedSurfaceState.active,\n        PersistedSurfaceState.pendingUpdate)");
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(oldSurface))) dart.assertFailed(null, I[277], 707, 12, "runtimeType == oldSurface.runtimeType");
      super.update(oldSurface);
      if (!dart.test(_engine.debugAssertSurfaceState(oldSurface, _engine.PersistedSurfaceState.released))) dart.assertFailed(null, I[277], 709, 12, "debugAssertSurfaceState(oldSurface, PersistedSurfaceState.released)");
      if (dart.test(oldSurface[_children][$isEmpty])) {
        this[_updateZeroToMany](oldSurface);
      } else if (this[_children][$length] === 1) {
        this[_updateManyToOne](oldSurface);
      } else if (dart.test(this[_children][$isEmpty])) {
        _engine.PersistedContainerSurface._discardActiveChildren(oldSurface);
      } else {
        this[_updateManyToMany](oldSurface);
      }
      if (!dart.test(dart.fn(() => {
        this[_debugValidateContainerUpdate](oldSurface);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 721, 12, "() {\n      _debugValidateContainerUpdate(oldSurface);\n      return true;\n    }()");
    }
    get isClipping() {
      return false;
    }
    [_debugValidateContainerUpdate](oldSurface) {
      if (oldSurface == null) dart.nullFailed(I[277], 732, 64, "oldSurface");
      if (!dart.test(dart.fn(() => {
        for (let i = 0; i < dart.notNull(oldSurface[_children][$length]); i = i + 1) {
          let oldChild = oldSurface[_children][$_get](i);
          if (!(!dart.test(oldChild.isActive) && !dart.test(oldChild.isCreated))) dart.assertFailed("Old child is in incorrect state " + dart.str(oldChild.state), I[277], 738, 16, "!oldChild.isActive && !oldChild.isCreated");
          if (dart.test(oldChild.isReleased)) {
            if (!(oldChild.rootElement == null)) dart.assertFailed(null, I[277], 741, 18, "oldChild.rootElement == null");
            if (!(oldChild.childContainer == null)) dart.assertFailed(null, I[277], 742, 18, "oldChild.childContainer == null");
          }
        }
        this[_debugValidateContainerNewState]();
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 735, 12, "() {\n      for (int i = 0; i < oldSurface._children.length; i++) {\n        final PersistedSurface oldChild = oldSurface._children[i];\n        assert(!oldChild.isActive && !oldChild.isCreated,\n            'Old child is in incorrect state ${oldChild.state}');\n        if (oldChild.isReleased) {\n          assert(oldChild.rootElement == null);\n          assert(oldChild.childContainer == null);\n        }\n      }\n      _debugValidateContainerNewState();\n      return true;\n    }()");
    }
    [_debugValidateContainerNewState]() {
      if (!dart.test(dart.fn(() => {
        for (let i = 0; i < dart.notNull(this[_children][$length]); i = i + 1) {
          let newChild = this[_children][$_get](i);
          if (!(newChild[_index$1] === i)) dart.assertFailed(null, I[277], 754, 16, "newChild._index == i");
          if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.active, _engine.PersistedSurfaceState.pendingRetention))) dart.assertFailed(null, I[277], 755, 16, "debugAssertSurfaceState(newChild, PersistedSurfaceState.active,\n            PersistedSurfaceState.pendingRetention)");
          if (!(newChild.rootElement != null)) dart.assertFailed(null, I[277], 757, 16, "newChild.rootElement != null");
          if (!dart.equals(_engine['DomNodeExtension|get#parent'](dart.nullCheck(newChild.rootElement)), this.childContainer)) dart.assertFailed(null, I[277], 758, 16, "newChild.rootElement!.parent == childContainer");
        }
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 751, 12, "() {\n      for (int i = 0; i < _children.length; i++) {\n        final PersistedSurface newChild = _children[i];\n        assert(newChild._index == i);\n        assert(debugAssertSurfaceState(newChild, PersistedSurfaceState.active,\n            PersistedSurfaceState.pendingRetention));\n        assert(newChild.rootElement != null);\n        assert(newChild.rootElement!.parent == childContainer);\n      }\n      return true;\n    }()");
    }
    [_updateZeroToMany](oldSurface) {
      if (oldSurface == null) dart.nullFailed(I[277], 768, 52, "oldSurface");
      if (!dart.test(oldSurface[_children][$isEmpty])) dart.assertFailed(null, I[277], 769, 12, "oldSurface._children.isEmpty");
      let containerElement = this.childContainer;
      let length = this[_children][$length];
      for (let i = 0; i < dart.notNull(length); i = i + 1) {
        let newChild = this[_children][$_get](i);
        if (dart.test(newChild.isPendingRetention)) {
          newChild.retain();
          if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.pendingRetention))) dart.assertFailed(null, I[277], 779, 16, "debugAssertSurfaceState(\n            newChild, PersistedSurfaceState.pendingRetention)");
        } else if (T$10.PersistedContainerSurface()[_is](newChild) && newChild.oldLayer != null) {
          let oldLayer = T$10.PersistedContainerSurface()[_as](dart.nullCheck(newChild.oldLayer));
          if (!dart.test(_engine.debugAssertSurfaceState(oldLayer, _engine.PersistedSurfaceState.pendingUpdate))) dart.assertFailed(null, I[277], 785, 16, "debugAssertSurfaceState(\n            oldLayer, PersistedSurfaceState.pendingUpdate)");
          newChild.update(oldLayer);
          if (!dart.test(_engine.debugAssertSurfaceState(oldLayer, _engine.PersistedSurfaceState.released))) dart.assertFailed(null, I[277], 789, 13, "debugAssertSurfaceState(oldLayer, PersistedSurfaceState.released)");
          if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 790, 16, "debugAssertSurfaceState(newChild, PersistedSurfaceState.active)");
        } else {
          newChild.build();
          if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 793, 16, "debugAssertSurfaceState(newChild, PersistedSurfaceState.active)");
        }
        newChild[_index$1] = i;
        if (!(newChild.rootElement != null)) dart.assertFailed(null, I[277], 796, 14, "newChild.rootElement != null");
        dart.nullCheck(containerElement).append(dart.nullCheck(newChild.rootElement));
      }
    }
    static _discardActiveChildren(surface) {
      if (surface == null) dart.nullFailed(I[277], 802, 64, "surface");
      let length = surface[_children][$length];
      for (let i = 0; i < dart.notNull(length); i = i + 1) {
        let child = surface[_children][$_get](i);
        if (dart.test(child.isActive)) {
          child.discard();
        }
        if (!(!dart.test(child.isCreated) && !dart.test(child.isActive))) dart.assertFailed(null, I[277], 811, 14, "!child.isCreated && !child.isActive");
      }
    }
    [_updateManyToOne](oldSurface) {
      if (oldSurface == null) dart.nullFailed(I[277], 817, 51, "oldSurface");
      if (!(this[_children][$length] === 1)) dart.assertFailed(null, I[277], 818, 12, "_children.length == 1");
      let newChild = this[_children][$_get](0);
      newChild[_index$1] = 0;
      if (dart.test(newChild.isPendingRetention)) {
        if (!(newChild.rootElement != null)) dart.assertFailed(null, I[277], 825, 14, "newChild.rootElement != null");
        if (!dart.equals(_engine['DomNodeExtension|get#parent'](dart.nullCheck(newChild.rootElement)), this.childContainer)) {
          dart.nullCheck(this.childContainer).append(dart.nullCheck(newChild.rootElement));
        }
        newChild.retain();
        _engine.PersistedContainerSurface._discardActiveChildren(oldSurface);
        if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.pendingRetention))) dart.assertFailed(null, I[277], 835, 14, "debugAssertSurfaceState(\n          newChild, PersistedSurfaceState.pendingRetention)");
        return;
      }
      if (T$10.PersistedContainerSurface()[_is](newChild) && newChild.oldLayer != null) {
        if (!dart.test(_engine.debugAssertSurfaceState(dart.nullCheck(newChild.oldLayer), _engine.PersistedSurfaceState.pendingUpdate))) dart.assertFailed(null, I[277], 843, 14, "debugAssertSurfaceState(\n          newChild.oldLayer!, PersistedSurfaceState.pendingUpdate)");
        if (!(newChild.rootElement == null)) dart.assertFailed(null, I[277], 845, 14, "newChild.rootElement == null");
        if (!(dart.nullCheck(newChild.oldLayer).rootElement != null)) dart.assertFailed(null, I[277], 846, 14, "newChild.oldLayer!.rootElement != null");
        let oldLayer = T$10.PersistedContainerSurface()[_as](dart.nullCheck(newChild.oldLayer));
        if (!dart.equals(_engine['DomNodeExtension|get#parent'](dart.nullCheck(oldLayer.rootElement)), this.childContainer)) {
          dart.nullCheck(this.childContainer).append(dart.nullCheck(oldLayer.rootElement));
        }
        newChild.update(oldLayer);
        _engine.PersistedContainerSurface._discardActiveChildren(oldSurface);
        if (!dart.test(_engine.debugAssertSurfaceState(oldLayer, _engine.PersistedSurfaceState.released))) dart.assertFailed(null, I[277], 858, 14, "debugAssertSurfaceState(oldLayer, PersistedSurfaceState.released)");
        if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 859, 14, "debugAssertSurfaceState(newChild, PersistedSurfaceState.active)");
        return;
      }
      if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.created))) dart.assertFailed(null, I[277], 863, 12, "debugAssertSurfaceState(newChild, PersistedSurfaceState.created)");
      let bestMatch = null;
      let bestScore = 2.0;
      for (let i = 0; i < dart.notNull(oldSurface[_children][$length]); i = i + 1) {
        let candidate = oldSurface[_children][$_get](i);
        if (!dart.test(newChild.canUpdateAsMatch(candidate))) {
          continue;
        }
        let score = newChild.matchForUpdate(candidate);
        if (dart.notNull(score) < dart.notNull(bestScore)) {
          bestMatch = candidate;
          bestScore = score;
        }
      }
      if (bestMatch != null) {
        if (!dart.test(_engine.debugAssertSurfaceState(bestMatch, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 880, 14, "debugAssertSurfaceState(bestMatch, PersistedSurfaceState.active)");
        newChild.update(bestMatch);
        if (!dart.equals(_engine['DomNodeExtension|get#parent'](dart.nullCheck(newChild.rootElement)), this.childContainer)) {
          dart.nullCheck(this.childContainer).append(dart.nullCheck(newChild.rootElement));
        }
        if (!dart.test(_engine.debugAssertSurfaceState(bestMatch, _engine.PersistedSurfaceState.released))) dart.assertFailed(null, I[277], 889, 11, "debugAssertSurfaceState(bestMatch, PersistedSurfaceState.released)");
      } else {
        newChild.build();
        dart.nullCheck(this.childContainer).append(dart.nullCheck(newChild.rootElement));
        if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 893, 14, "debugAssertSurfaceState(newChild, PersistedSurfaceState.active)");
      }
      for (let i = 0; i < dart.notNull(oldSurface[_children][$length]); i = i + 1) {
        let oldChild = oldSurface[_children][$_get](i);
        if (oldChild != bestMatch && dart.test(oldChild.isActive)) {
          oldChild.discard();
        }
        if (!(!dart.test(oldChild.isCreated) && !dart.test(oldChild.isActive))) dart.assertFailed(null, I[277], 903, 14, "!oldChild.isCreated && !oldChild.isActive");
      }
    }
    [_updateManyToMany](oldSurface) {
      if (oldSurface == null) dart.nullFailed(I[277], 909, 52, "oldSurface");
      if (!(dart.test(this[_children][$isNotEmpty]) && dart.test(oldSurface[_children][$isNotEmpty]))) dart.assertFailed(null, I[277], 910, 12, "_children.isNotEmpty && oldSurface._children.isNotEmpty");
      let containerElement = this.childContainer;
      let matches = this[_matchChildren](oldSurface);
      let indexMapNew = null;
      let indexMapOld = null;
      let requiresDomInserts = false;
      for (let topInNew = 0; topInNew < dart.notNull(this[_children][$length]); topInNew = topInNew + 1) {
        let newChild = this[_children][$_get](topInNew);
        let matchedOldChild = null;
        let isReparenting = true;
        if (dart.test(newChild.isPendingRetention)) {
          isReparenting = !dart.equals(_engine['DomNodeExtension|get#parent'](dart.nullCheck(newChild.rootElement)), containerElement);
          newChild.retain();
          matchedOldChild = newChild;
          if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.pendingRetention))) dart.assertFailed(null, I[277], 944, 16, "debugAssertSurfaceState(\n            newChild, PersistedSurfaceState.pendingRetention)");
        } else if (T$10.PersistedContainerSurface()[_is](newChild) && newChild.oldLayer != null) {
          let oldLayer = T$10.PersistedContainerSurface()[_as](dart.nullCheck(newChild.oldLayer));
          isReparenting = !dart.equals(_engine['DomNodeExtension|get#parent'](dart.nullCheck(oldLayer.rootElement)), containerElement);
          matchedOldChild = oldLayer;
          if (!dart.test(_engine.debugAssertSurfaceState(oldLayer, _engine.PersistedSurfaceState.pendingUpdate))) dart.assertFailed(null, I[277], 952, 16, "debugAssertSurfaceState(\n            oldLayer, PersistedSurfaceState.pendingUpdate)");
          newChild.update(oldLayer);
          if (!dart.test(_engine.debugAssertSurfaceState(oldLayer, _engine.PersistedSurfaceState.released))) dart.assertFailed(null, I[277], 956, 13, "debugAssertSurfaceState(oldLayer, PersistedSurfaceState.released)");
          if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 957, 16, "debugAssertSurfaceState(newChild, PersistedSurfaceState.active)");
        } else {
          matchedOldChild = matches[$_get](newChild);
          if (matchedOldChild != null) {
            if (!dart.test(_engine.debugAssertSurfaceState(matchedOldChild, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 961, 18, "debugAssertSurfaceState(\n              matchedOldChild, PersistedSurfaceState.active)");
            isReparenting = !dart.equals(_engine['DomNodeExtension|get#parent'](dart.nullCheck(matchedOldChild.rootElement)), containerElement);
            newChild.update(matchedOldChild);
            if (!dart.test(_engine.debugAssertSurfaceState(matchedOldChild, _engine.PersistedSurfaceState.released))) dart.assertFailed(null, I[277], 966, 18, "debugAssertSurfaceState(\n              matchedOldChild, PersistedSurfaceState.released)");
            if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 969, 15, "debugAssertSurfaceState(newChild, PersistedSurfaceState.active)");
          } else {
            newChild.build();
            if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[277], 973, 15, "debugAssertSurfaceState(newChild, PersistedSurfaceState.active)");
          }
        }
        let indexInOld = -1;
        if (matchedOldChild != null && !isReparenting) {
          if (!(matchedOldChild[_index$1] !== -1)) dart.assertFailed("Invalid index " + dart.str(matchedOldChild[_index$1]) + " of child layer " + dart.str(dart.runtimeType(matchedOldChild)), I[277], 980, 11, "matchedOldChild._index != -1");
          indexInOld = matchedOldChild[_index$1];
        }
        if (!requiresDomInserts && indexInOld !== topInNew) {
          requiresDomInserts = true;
          indexMapNew = G.JSArrayOfint().of([]);
          indexMapOld = G.JSArrayOfint().of([]);
          for (let backfill = 0; backfill < topInNew; backfill = backfill + 1) {
            indexMapNew[$add](backfill);
            indexMapOld[$add](backfill);
          }
        }
        if (requiresDomInserts && indexInOld !== -1) {
          dart.nullCheck(indexMapNew)[$add](topInNew);
          dart.nullCheck(indexMapOld)[$add](indexInOld);
        }
        newChild[_index$1] = topInNew;
        if (!(newChild.rootElement != null)) dart.assertFailed(null, I[277], 1008, 14, "newChild.rootElement != null");
        if (!dart.test(_engine.debugAssertSurfaceState(newChild, _engine.PersistedSurfaceState.active, _engine.PersistedSurfaceState.pendingRetention))) dart.assertFailed(null, I[277], 1009, 14, "debugAssertSurfaceState(newChild, PersistedSurfaceState.active,\n          PersistedSurfaceState.pendingRetention)");
      }
      if (requiresDomInserts) {
        if (!(dart.nullCheck(indexMapNew)[$length] == dart.nullCheck(indexMapOld)[$length])) dart.assertFailed(null, I[277], 1016, 14, "indexMapNew!.length == indexMapOld!.length");
        this[_insertChildDomNodes](indexMapNew, dart.nullCheck(indexMapOld));
      } else {
        if (!(indexMapNew == null)) dart.assertFailed(null, I[277], 1021, 14, "indexMapNew == null");
        if (!(indexMapOld == null)) dart.assertFailed(null, I[277], 1022, 14, "indexMapOld == null");
      }
      _engine.PersistedContainerSurface._discardActiveChildren(oldSurface);
    }
    [_insertChildDomNodes](indexMapNew, indexMapOld) {
      if (indexMapOld == null) dart.nullFailed(I[277], 1031, 63, "indexMapOld");
      let stationaryIndices = _engine.longestIncreasingSubsequence(indexMapOld);
      for (let i = 0; i < dart.notNull(stationaryIndices[$length]); i = i + 1) {
        stationaryIndices[$_set](i, dart.nullCheck(indexMapNew)[$_get](dart.nullCheck(stationaryIndices[$_get](i))));
      }
      let refNode = null;
      let containerElement = this.childContainer;
      for (let i = dart.notNull(this[_children][$length]) - 1; i >= 0; i = i - 1) {
        let indexInNew = dart.nullCheck(indexMapNew)[$indexOf](i);
        let isStationary = indexInNew !== -1 && dart.test(stationaryIndices[$contains](i));
        let child = this[_children][$_get](i);
        let childElement = T$10.DomHTMLElement()[_as](dart.nullCheck(child.rootElement));
        if (!isStationary) {
          if (refNode == null) {
            dart.nullCheck(containerElement).append(childElement);
          } else {
            T$9.DomNode()[_as](dart.nullCheck(containerElement).insertBefore(childElement, refNode));
          }
        }
        refNode = childElement;
        if (!dart.equals(_engine['DomNodeExtension|get#parent'](dart.nullCheck(child.rootElement)), this.childContainer)) dart.assertFailed(null, I[277], 1057, 14, "child.rootElement!.parent == childContainer");
      }
    }
    [_matchChildren](oldSurface) {
      if (oldSurface == null) dart.nullFailed(I[277], 1062, 33, "oldSurface");
      let newUnfilteredChildCount = this[_children][$length];
      let oldUnfilteredChildCount = oldSurface[_children][$length];
      let newChildren = G$.JSArrayOfPersistedSurface().of([]);
      for (let i = 0; i < dart.notNull(newUnfilteredChildCount); i = i + 1) {
        let child = this[_children][$_get](i);
        if (dart.test(child.isCreated) && child.oldLayer == null) {
          newChildren[$add](child);
        }
      }
      let oldChildren = G$.JSArrayOfPersistedSurfaceN().of([]);
      for (let i = 0; i < dart.notNull(oldUnfilteredChildCount); i = i + 1) {
        let child = oldSurface[_children][$_get](i);
        if (dart.test(child.isActive)) {
          oldChildren[$add](child);
        }
      }
      let newChildCount = newChildren[$length];
      let oldChildCount = oldChildren[$length];
      if (newChildCount === 0 || oldChildCount === 0) {
        return C[854] || CT.C854;
      }
      let allMatches = G$.JSArrayOf_PersistedSurfaceMatch().of([]);
      for (let indexInNew = 0; indexInNew < dart.notNull(newChildCount); indexInNew = indexInNew + 1) {
        let newChild = newChildren[$_get](indexInNew);
        for (let indexInOld = 0; indexInOld < dart.notNull(oldChildCount); indexInOld = indexInOld + 1) {
          let oldChild = oldChildren[$_get](indexInOld);
          let childAlreadyClaimed = oldChild == null;
          if (childAlreadyClaimed || !dart.test(newChild.canUpdateAsMatch(oldChild))) {
            continue;
          }
          allMatches[$add](new _engine._PersistedSurfaceMatch.new({matchQuality: newChild.matchForUpdate(oldChild), newChild: newChild, oldChildIndex: indexInOld}));
        }
      }
      allMatches[$sort](dart.fn((m1, m2) => {
        if (m1 == null) dart.nullFailed(I[277], 1118, 45, "m1");
        if (m2 == null) dart.nullFailed(I[277], 1118, 72, "m2");
        return dart.nullCheck(m1.matchQuality)[$compareTo](dart.nullCheck(m2.matchQuality));
      }, T$10._PersistedSurfaceMatchAnd_PersistedSurfaceMatchToint()));
      let result = new (G$.LinkedMapOfPersistedSurfaceN$PersistedSurface()).new();
      for (let i = 0; i < dart.notNull(allMatches[$length]); i = i + 1) {
        let match = allMatches[$_get](i);
        let matchedChild = oldChildren[$_get](dart.nullCheck(match.oldChildIndex));
        let newChildNeedsMatch = result[$_get](match.newChild) == null;
        if (matchedChild != null && newChildNeedsMatch) {
          oldChildren[$_set](dart.nullCheck(match.oldChildIndex), null);
          result[$_set](match.newChild, matchedChild);
        }
      }
      if (!(result[$length] == G$.LinkedHashSetOfPersistedSurface().from(result[$values])[$length])) dart.assertFailed(null, I[277], 1136, 12, "result.length == Set<PersistedSurface>.from(result.values).length");
      return result;
    }
    retain() {
      super.retain();
      let len = this[_children][$length];
      for (let i = 0; i < dart.notNull(len); i = i + 1) {
        this[_children][$_get](i).retain();
      }
    }
    revive() {
      super.revive();
      let len = this[_children][$length];
      for (let i = 0; i < dart.notNull(len); i = i + 1) {
        this[_children][$_get](i).revive();
      }
    }
    discard() {
      super.discard();
      _engine.PersistedContainerSurface._discardActiveChildren(this);
    }
    debugValidate(validationErrors) {
      if (validationErrors == null) dart.nullFailed(I[277], 1166, 35, "validationErrors");
      super.debugValidate(validationErrors);
      for (let i = 0; i < dart.notNull(this[_children][$length]); i = i + 1) {
        let child = this[_children][$_get](i);
        if (!dart.equals(child.parent, this)) {
          validationErrors[$add](dart.str(_engine.debugIdentify(child)) + " parent is " + dart.str(_engine.debugIdentify(child.parent)) + " but expected the parent to be " + dart.str(_engine.debugIdentify(this)));
        }
      }
      for (let i = 0; i < dart.notNull(this[_children][$length]); i = i + 1) {
        this[_children][$_get](i).debugValidate(validationErrors);
      }
    }
    debugPrintChildren(buffer, indent) {
      if (buffer == null) dart.nullFailed(I[277], 1181, 40, "buffer");
      if (indent == null) dart.nullFailed(I[277], 1181, 52, "indent");
      super.debugPrintChildren(buffer, indent);
      for (let i = 0; i < dart.notNull(this[_children][$length]); i = i + 1) {
        this[_children][$_get](i).debugPrint(buffer, dart.notNull(indent) + 1);
      }
    }
  };
  (_engine.PersistedContainerSurface.new = function(oldLayer) {
    this[_children] = G$.JSArrayOfPersistedSurface().of([]);
    dart.global.Object.getPrototypeOf(_engine.PersistedContainerSurface).new.call(this, oldLayer);
    if (!(oldLayer == null || dart.equals(dart.runtimeType(this), dart.runtimeType(oldLayer)))) dart.assertFailed(null, I[277], 623, 12, "oldLayer == null || runtimeType == oldLayer.runtimeType");
  }).prototype = _engine.PersistedContainerSurface.prototype;
  dart.addRtiResources(_engine.PersistedContainerSurface, ["_engine|PersistedContainerSurface"]);
  dart.setMethodSignature(_engine.PersistedContainerSurface, () => dart.global.Object.setPrototypeOf({
    visitChildren: T$10.FnTovoid$41(),
    appendChild: T$10.PersistedSurfaceTovoid(),
    matchForUpdate: T$.ObjectNTodouble(),
    [_debugValidateContainerUpdate]: T$10.PersistedContainerSurfaceTovoid(),
    [_debugValidateContainerNewState]: T$.VoidTovoid(),
    [_updateZeroToMany]: T$10.PersistedContainerSurfaceTovoid(),
    [_updateManyToOne]: T$10.PersistedContainerSurfaceTovoid(),
    [_updateManyToMany]: T$10.PersistedContainerSurfaceTovoid(),
    [_insertChildDomNodes]: T$10.ListNOfintAndListOfintTovoid(),
    [_matchChildren]: T$10.PersistedContainerSurfaceToMapOfPersistedSurfaceN$PersistedSurface()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedContainerSurface))));
  dart.setStaticMethodSignature(_engine.PersistedContainerSurface, () => ['_discardActiveChildren']);
  dart.setGetterSignature(_engine.PersistedContainerSurface, () => dart.global.Object.setPrototypeOf({isClipping: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PersistedContainerSurface))));
  dart.setLibraryUri(_engine.PersistedContainerSurface, I[220]);
  dart.setFieldSignature(_engine.PersistedContainerSurface, () => dart.global.Object.setPrototypeOf({[_children]: {type: T$10.ListOfPersistedSurface(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedContainerSurface))));
  _engine.PersistedBackdropFilter = class PersistedBackdropFilter extends _engine.PersistedContainerSurface {
    get filter() {
      return this[filter$0];
    }
    set filter(value) {
      super.filter = value;
    }
    static ['_#new#tearOff'](oldLayer, filter) {
      if (filter == null) dart.nullFailed(I[276], 11, 73, "filter");
      return new _engine.PersistedBackdropFilter.new(oldLayer, filter);
    }
    get childContainer() {
      return this[_childContainer];
    }
    get [_invertedTransform]() {
      let t$36537;
      return dart.test(this[__PersistedBackdropFilter__invertedTransform_isSet]) ? (t$36537 = this[__PersistedBackdropFilter__invertedTransform], t$36537) : dart.throw(new _internal.LateError.fieldNI("_invertedTransform"));
    }
    set [_invertedTransform](_invertedTransform$35param) {
      if (_invertedTransform$35param == null) dart.nullFailed(I[276], 25, 16, "_invertedTransform#param");
      this[__PersistedBackdropFilter__invertedTransform_isSet] = true;
      this[__PersistedBackdropFilter__invertedTransform] = _invertedTransform$35param;
    }
    adoptElements(oldSurface) {
      T$10.PersistedBackdropFilter()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[276], 30, 46, "oldSurface");
      super.adoptElements(oldSurface);
      this[_childContainer] = oldSurface[_childContainer];
      this[_filterElement] = oldSurface[_filterElement];
      this[_svgFilter] = oldSurface[_svgFilter];
      oldSurface[_childContainer] = null;
    }
    createElement() {
      let t$36537;
      let element = this.defaultCreateElement("flt-backdrop");
      _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "0 0 0");
      this[_childContainer] = _engine.createDomElement("flt-backdrop-interior");
      _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_childContainer]), "style"), "absolute");
      ;
      this[_filterElement] = this.defaultCreateElement("flt-backdrop-filter");
      _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_filterElement]), "style"), "0 0 0");
      t$36537 = element;
      (() => {
        t$36537.append(dart.nullCheck(this[_filterElement]));
        t$36537.append(dart.nullCheck(this[_childContainer]));
        return t$36537;
      })();
      return element;
    }
    discard() {
      super.discard();
      _engine.ResourceManager.instance.removeResource(this[_svgFilter]);
      this[_svgFilter] = null;
      this[_childContainer] = null;
      this[_filterElement] = null;
    }
    apply() {
      let t$36537, t$36537$;
      let backendFilter = null;
      if (T$9.ColorFilter()[_is](this.filter)) {
        backendFilter = dart.nullCheck(_engine.createHtmlColorFilter(T$9.EngineColorFilter()[_as](this.filter)));
      } else {
        backendFilter = T$10.EngineImageFilter()[_as](this.filter);
      }
      _engine.ResourceManager.instance.removeResource(this[_svgFilter]);
      this[_svgFilter] = null;
      if (!dart.equals(this[_previousTransform], this.transform)) {
        this[_invertedTransform] = _engine.Matrix4.inverted(dart.nullCheck(this.transform));
        this[_previousTransform] = this.transform;
      }
      let dpr = ui.window.devicePixelRatio;
      let rect = this[_invertedTransform].transformRect(new ui.Rect.fromLTRB(0.0, 0.0, dart.notNull(ui.window.physicalSize.width) * dart.notNull(dpr), dart.notNull(ui.window.physicalSize.height) * dart.notNull(dpr)));
      let left = rect.left;
      let top = rect.top;
      let width = rect.width;
      let height = rect.height;
      let parentSurface = this.parent;
      while (parentSurface != null) {
        if (dart.test(parentSurface.isClipping)) {
          let activeClipBounds = dart.nullCheck(this[_activeClipBounds] = parentSurface.localClipBounds);
          left = activeClipBounds.left;
          top = activeClipBounds.top;
          width = activeClipBounds.width;
          height = activeClipBounds.height;
          break;
        }
        parentSurface = parentSurface.parent;
      }
      let filterElementStyle = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_filterElement]), "style");
      t$36537 = filterElementStyle;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36537, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36537, dart.str(left) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36537, dart.str(top) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36537, dart.str(width) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36537, dart.str(height) + "px");
        return t$36537;
      })();
      if (ui_web.browser.browserEngine == ui_web.BrowserEngine.firefox) {
        t$36537$ = filterElementStyle;
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$36537$, "#000");
          _engine['DomCSSStyleDeclarationExtension|set#opacity'](t$36537$, "0.2");
          return t$36537$;
        })();
      } else {
        if (T$10.ModeHtmlColorFilter()[_is](backendFilter)) {
          this[_svgFilter] = backendFilter.makeSvgFilter(this[_filterElement]);
          if (this[_svgFilter] == null) {
            return;
          }
        } else if (T$10.MatrixHtmlColorFilter()[_is](backendFilter)) {
          this[_svgFilter] = backendFilter.makeSvgFilter(this[_filterElement]);
        }
        if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
          _engine.setElementStyle(dart.nullCheck(this[_filterElement]), "-webkit-backdrop-filter", backendFilter.filterAttribute);
        }
        _engine.setElementStyle(dart.nullCheck(this[_filterElement]), "backdrop-filter", backendFilter.filterAttribute);
      }
    }
    update(oldSurface) {
      T$10.PersistedBackdropFilter()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[276], 145, 39, "oldSurface");
      super.update(oldSurface);
      if (!dart.equals(this.filter, oldSurface.filter)) {
        this.apply();
      } else {
        this[_checkForUpdatedAncestorClipElement]();
      }
    }
    [_checkForUpdatedAncestorClipElement]() {
      let parentSurface = this.parent;
      while (parentSurface != null) {
        if (dart.test(parentSurface.isClipping)) {
          if (!dart.equals(parentSurface.localClipBounds, this[_activeClipBounds])) {
            this.apply();
          }
          break;
        }
        parentSurface = parentSurface.parent;
      }
    }
    retain() {
      super.retain();
      this[_checkForUpdatedAncestorClipElement]();
    }
  };
  (_engine.PersistedBackdropFilter.new = function(oldLayer, filter) {
    if (filter == null) dart.nullFailed(I[276], 11, 73, "filter");
    this[_childContainer] = null;
    this[_filterElement] = null;
    this[_svgFilter] = null;
    this[_activeClipBounds] = null;
    this[__PersistedBackdropFilter__invertedTransform] = null;
    this[__PersistedBackdropFilter__invertedTransform_isSet] = false;
    this[_previousTransform] = null;
    this[filter$0] = filter;
    dart.global.Object.getPrototypeOf(_engine.PersistedBackdropFilter).new.call(this, oldLayer);
    ;
  }).prototype = _engine.PersistedBackdropFilter.prototype;
  dart.addRtiResources(_engine.PersistedBackdropFilter, ["_engine|PersistedBackdropFilter", "ui|BackdropFilterEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedBackdropFilter, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid(),
    [_checkForUpdatedAncestorClipElement]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedBackdropFilter))));
  dart.setGetterSignature(_engine.PersistedBackdropFilter, () => dart.global.Object.setPrototypeOf({[_invertedTransform]: T$9.Matrix4()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PersistedBackdropFilter))));
  dart.setSetterSignature(_engine.PersistedBackdropFilter, () => dart.global.Object.setPrototypeOf({[_invertedTransform]: T$9.Matrix4()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.PersistedBackdropFilter))));
  dart.setLibraryUri(_engine.PersistedBackdropFilter, I[220]);
  dart.setFieldSignature(_engine.PersistedBackdropFilter, () => dart.global.Object.setPrototypeOf({
    filter: {type: T$9.ImageFilter(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_childContainer]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_filterElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_svgFilter]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_activeClipBounds]: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [__PersistedBackdropFilter__invertedTransform]: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__PersistedBackdropFilter__invertedTransform_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_previousTransform]: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedBackdropFilter))));
  var rootElement$ = dart.privateName(_engine, "BitmapCanvas.rootElement");
  var widthInBitmapPixels = dart.privateName(_engine, "BitmapCanvas.widthInBitmapPixels");
  var heightInBitmapPixels = dart.privateName(_engine, "BitmapCanvas.heightInBitmapPixels");
  var _elementCache = dart.privateName(_engine, "_elementCache");
  var _cachedLastCssFont = dart.privateName(_engine, "_cachedLastCssFont");
  var _saveCount = dart.privateName(_engine, "_saveCount");
  var _devicePixelRatio = dart.privateName(_engine, "_devicePixelRatio");
  var _canvasPositionX = dart.privateName(_engine, "_canvasPositionX");
  var _canvasPositionY = dart.privateName(_engine, "_canvasPositionY");
  var _childOverdraw = dart.privateName(_engine, "_childOverdraw");
  var _contains3dTransform = dart.privateName(_engine, "_contains3dTransform");
  var _preserveImageData = dart.privateName(_engine, "_preserveImageData");
  var _bounds$ = dart.privateName(_engine, "_bounds");
  var _renderStrategy = dart.privateName(_engine, "_renderStrategy");
  var _updateRootElementTransform = dart.privateName(_engine, "_updateRootElementTransform");
  var _setupInitialTransform = dart.privateName(_engine, "_setupInitialTransform");
  var _useDomForRenderingFill = dart.privateName(_engine, "_useDomForRenderingFill");
  var _useDomForRenderingFillAndStroke = dart.privateName(_engine, "_useDomForRenderingFillAndStroke");
  var _computeScreenBounds = dart.privateName(_engine, "_computeScreenBounds");
  var _computePictureBounds = dart.privateName(_engine, "_computePictureBounds");
  var _drawElement = dart.privateName(_engine, "_drawElement");
  var _closeCanvas = dart.privateName(_engine, "_closeCanvas");
  var _applyFilter = dart.privateName(_engine, "_applyFilter");
  var _drawImage = dart.privateName(_engine, "_drawImage");
  var _applyTargetSize = dart.privateName(_engine, "_applyTargetSize");
  var _reuseOrCreateImage = dart.privateName(_engine, "_reuseOrCreateImage");
  var _createImageElementWithBlend = dart.privateName(_engine, "_createImageElementWithBlend");
  var _createImageElementWithSvgColorMatrixFilter = dart.privateName(_engine, "_createImageElementWithSvgColorMatrixFilter");
  var _createImageElementWithSvgBlendFilter = dart.privateName(_engine, "_createImageElementWithSvgBlendFilter");
  var _createBackgroundImageWithBlend = dart.privateName(_engine, "_createBackgroundImageWithBlend");
  _engine.BitmapCanvas = class BitmapCanvas extends _engine.EngineCanvas {
    get rootElement() {
      return this[rootElement$];
    }
    set rootElement(value) {
      super.rootElement = value;
    }
    get widthInBitmapPixels() {
      return this[widthInBitmapPixels];
    }
    set widthInBitmapPixels(value) {
      super.widthInBitmapPixels = value;
    }
    get heightInBitmapPixels() {
      return this[heightInBitmapPixels];
    }
    set heightInBitmapPixels(value) {
      super.heightInBitmapPixels = value;
    }
    static ['_#new#tearOff'](_bounds, renderStrategy, opts) {
      if (_bounds == null) dart.nullFailed(I[278], 17, 21, "_bounds");
      if (renderStrategy == null) dart.nullFailed(I[278], 17, 45, "renderStrategy");
      let density = opts && 'density' in opts ? opts.density : 1;
      if (density == null) dart.nullFailed(I[278], 18, 15, "density");
      return new _engine.BitmapCanvas.new(_bounds, renderStrategy, {density: density});
    }
    static ['_#imageData#tearOff'](bounds) {
      if (bounds == null) dart.nullFailed(I[278], 37, 42, "bounds");
      return _engine.BitmapCanvas.imageData(bounds);
    }
    static imageData(bounds) {
      if (bounds == null) dart.nullFailed(I[278], 37, 42, "bounds");
      let bitmapCanvas = new _engine.BitmapCanvas.new(bounds, new _engine.RenderStrategy.new());
      bitmapCanvas[_preserveImageData] = true;
      return bitmapCanvas;
    }
    get bounds() {
      return this[_bounds$];
    }
    set bounds(newValue) {
      if (newValue == null) dart.nullFailed(I[278], 48, 22, "newValue");
      this[_bounds$] = newValue;
      let newCanvasPositionX = this[_bounds$].left[$floor]() - 1;
      let newCanvasPositionY = this[_bounds$].top[$floor]() - 1;
      if (this[_canvasPositionX] !== newCanvasPositionX || this[_canvasPositionY] !== newCanvasPositionY) {
        this[_canvasPositionX] = newCanvasPositionX;
        this[_canvasPositionY] = newCanvasPositionY;
        this[_updateRootElementTransform]();
      }
    }
    get size() {
      return this[_bounds$].size;
    }
    get bitmapPixelCount() {
      return dart.notNull(this.widthInBitmapPixels) * dart.notNull(this.heightInBitmapPixels);
    }
    set debugChildOverdraw(value) {
      if (value == null) dart.nullFailed(I[278], 126, 31, "value");
      this[_childOverdraw] = value;
    }
    get density() {
      return this[_density$];
    }
    setElementCache(cache) {
      this[_elementCache] = cache;
    }
    [_updateRootElementTransform]() {
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.rootElement, "style"), "translate(" + dart.str(this[_canvasPositionX]) + "px, " + dart.str(this[_canvasPositionY]) + "px)");
    }
    [_setupInitialTransform]() {
      let canvasPositionCorrectionX = dart.notNull(this[_bounds$].left) - 1 - dart.nullCheck(this[_canvasPositionX])[$toDouble]();
      let canvasPositionCorrectionY = dart.notNull(this[_bounds$].top) - 1 - dart.nullCheck(this[_canvasPositionY])[$toDouble]();
      this[_canvasPool$].initialTransform = new ui.Offset.new(-dart.notNull(this[_bounds$].left) + canvasPositionCorrectionX + 1, -dart.notNull(this[_bounds$].top) + canvasPositionCorrectionY + 1);
    }
    static widthToPhysical(width) {
      if (width == null) dart.nullFailed(I[278], 180, 37, "width");
      let boundsWidth = dart.notNull(width) + 1;
      return (boundsWidth * dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio))[$ceil]() + 2 * 1;
    }
    static heightToPhysical(height) {
      if (height == null) dart.nullFailed(I[278], 187, 38, "height");
      let boundsHeight = dart.notNull(height) + 1;
      return (boundsHeight * dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio))[$ceil]() + 2 * 1;
    }
    doesFitBounds(newBounds, newDensity) {
      if (newBounds == null) dart.nullFailed(I[278], 196, 30, "newBounds");
      if (newDensity == null) dart.nullFailed(I[278], 196, 48, "newDensity");
      return dart.notNull(this.widthInBitmapPixels) >= dart.notNull(_engine.BitmapCanvas.widthToPhysical(newBounds.width)) && dart.notNull(this.heightInBitmapPixels) >= dart.notNull(_engine.BitmapCanvas.heightToPhysical(newBounds.height)) && this[_density$] == newDensity;
    }
    dispose() {
      this[_canvasPool$].dispose();
    }
    clear() {
      this[_contains3dTransform] = false;
      this[_canvasPool$].clear();
      let len = this[_children][$length];
      for (let i = 0; i < dart.notNull(len); i = i + 1) {
        let child = this[_children][$_get](i);
        if (dart.equals(js_util.getProperty(T$9.DomNodeN(), child, "parentNode"), this.rootElement)) {
          child.remove();
        }
      }
      this[_children][$clear]();
      this[_childOverdraw] = false;
      this[_cachedLastCssFont] = null;
      this[_setupInitialTransform]();
    }
    isReusable() {
      return this[_devicePixelRatio] == _engine.EngineFlutterDisplay.instance.browserDevicePixelRatio;
    }
    toDataUrl() {
      return this[_canvasPool$].toDataUrl();
    }
    setUpPaint(paint, shaderBounds) {
      if (paint == null) dart.nullFailed(I[278], 246, 36, "paint");
      this[_canvasPool$].contextHandle.setUpPaint(paint, shaderBounds);
    }
    tearDownPaint() {
      this[_canvasPool$].contextHandle.tearDownPaint();
    }
    save() {
      let t$36537;
      this[_canvasPool$].save();
      t$36537 = this[_saveCount];
      this[_saveCount] = dart.notNull(t$36537) + 1;
      return t$36537;
    }
    saveLayer(bounds, paint) {
      if (bounds == null) dart.nullFailed(I[278], 260, 26, "bounds");
      if (paint == null) dart.nullFailed(I[278], 260, 43, "paint");
      this.save();
    }
    restore() {
      this[_canvasPool$].restore();
      this[_saveCount] = dart.notNull(this[_saveCount]) - 1;
      this[_cachedLastCssFont] = null;
    }
    restoreToCount(count) {
      if (count == null) dart.nullFailed(I[278], 274, 27, "count");
      if (!(dart.notNull(this[_saveCount]) >= dart.notNull(count))) dart.assertFailed(null, I[278], 275, 12, "_saveCount >= count");
      let restores = dart.notNull(this[_saveCount]) - dart.notNull(count);
      for (let i = 0; i < restores; i = i + 1) {
        this[_canvasPool$].restore();
      }
      this[_saveCount] = count;
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[278], 284, 25, "dx");
      if (dy == null) dart.nullFailed(I[278], 284, 36, "dy");
      this[_canvasPool$].translate(dx, dy);
    }
    scale(sx, sy) {
      if (sx == null) dart.nullFailed(I[278], 289, 21, "sx");
      if (sy == null) dart.nullFailed(I[278], 289, 32, "sy");
      this[_canvasPool$].scale(sx, sy);
    }
    rotate(radians) {
      if (radians == null) dart.nullFailed(I[278], 294, 22, "radians");
      this[_canvasPool$].rotate(radians);
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[278], 299, 20, "sx");
      if (sy == null) dart.nullFailed(I[278], 299, 31, "sy");
      this[_canvasPool$].skew(sx, sy);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[278], 304, 30, "matrix4");
      let transformKind = _engine.transformKindOf(matrix4);
      if (transformKind == _engine.TransformKind.complex) {
        this[_contains3dTransform] = true;
      }
      this[_canvasPool$].transform(matrix4);
    }
    clipRect(rect, clipOp) {
      if (rect == null) dart.nullFailed(I[278], 313, 25, "rect");
      if (clipOp == null) dart.nullFailed(I[278], 313, 41, "clipOp");
      if (clipOp == ui.ClipOp.difference) {
        let path = new _engine.SurfacePath.new();
        path.fillType = ui.PathFillType.evenOdd;
        path.addRect(new ui.Rect.fromLTWH(0.0, 0.0, this[_bounds$].width, this[_bounds$].height));
        path.addRect(rect);
        this[_canvasPool$].clipPath(path);
      } else {
        this[_canvasPool$].clipRect(rect);
      }
    }
    clipRRect(rrect) {
      if (rrect == null) dart.nullFailed(I[278], 328, 27, "rrect");
      this[_canvasPool$].clipRRect(rrect);
    }
    clipPath(path) {
      if (path == null) dart.nullFailed(I[278], 333, 25, "path");
      this[_canvasPool$].clipPath(path);
    }
    [_useDomForRenderingFill](paint) {
      if (paint == null) dart.nullFailed(I[278], 344, 49, "paint");
      if (dart.test(this[_preserveImageData])) {
        return false;
      }
      return dart.test(this[_renderStrategy].isInsideSvgFilterTree) || dart.test(this[_contains3dTransform]) || dart.test(this[_childOverdraw]) && !dart.test(this[_canvasPool$].hasCanvas) && paint.maskFilter == null && paint.shader == null && paint.style != ui.PaintingStyle.stroke;
    }
    [_useDomForRenderingFillAndStroke](paint) {
      if (paint == null) dart.nullFailed(I[278], 360, 58, "paint");
      if (dart.test(this[_preserveImageData])) {
        return false;
      }
      return dart.test(this[_renderStrategy].isInsideSvgFilterTree) || dart.test(this[_contains3dTransform]) || (dart.test(this[_childOverdraw]) || dart.test(this[_renderStrategy].hasImageElements) || dart.test(this[_renderStrategy].hasParagraphs)) && !dart.test(this[_canvasPool$].hasCanvas) && paint.maskFilter == null && paint.shader == null;
    }
    drawColor(color, blendMode) {
      let t$36537;
      if (color == null) dart.nullFailed(I[278], 375, 27, "color");
      if (blendMode == null) dart.nullFailed(I[278], 375, 47, "blendMode");
      let paintData = (t$36537 = new _engine.SurfacePaintData.new(), (() => {
        t$36537.color = color.value;
        t$36537.blendMode = blendMode;
        return t$36537;
      })());
      if (dart.test(this[_useDomForRenderingFill](paintData))) {
        this.drawRect(this[_computeScreenBounds](this[_canvasPool$].currentTransform), paintData);
      } else {
        this[_canvasPool$].drawColor(color, blendMode);
      }
    }
    drawLine(p1, p2, paint) {
      let t$36537;
      if (p1 == null) dart.nullFailed(I[278], 387, 27, "p1");
      if (p2 == null) dart.nullFailed(I[278], 387, 41, "p2");
      if (paint == null) dart.nullFailed(I[278], 387, 62, "paint");
      if (dart.test(this[_useDomForRenderingFill](paint))) {
        let path = (t$36537 = new _engine.SurfacePath.new(), (() => {
          t$36537.moveTo(p1.dx, p1.dy);
          t$36537.lineTo(p2.dx, p2.dy);
          return t$36537;
        })());
        this.drawPath(path, paint);
      } else {
        let shaderBounds = paint.shader != null ? new ui.Rect.fromPoints(p1, p2) : null;
        this.setUpPaint(paint, shaderBounds);
        this[_canvasPool$].strokeLine(p1, p2);
        this.tearDownPaint();
      }
    }
    drawPaint(paint) {
      if (paint == null) dart.nullFailed(I[278], 403, 35, "paint");
      if (dart.test(this[_useDomForRenderingFill](paint))) {
        this.drawRect(this[_computeScreenBounds](this[_canvasPool$].currentTransform), paint);
      } else {
        let shaderBounds = paint.shader != null ? this[_computePictureBounds]() : null;
        this.setUpPaint(paint, shaderBounds);
        this[_canvasPool$].fill();
        this.tearDownPaint();
      }
    }
    drawRect(rect, paint) {
      if (rect == null) dart.nullFailed(I[278], 416, 25, "rect");
      if (paint == null) dart.nullFailed(I[278], 416, 48, "paint");
      if (dart.test(this[_useDomForRenderingFillAndStroke](paint))) {
        rect = _engine.adjustRectForDom(rect, paint);
        let element = _engine.buildDrawRectElement(rect, paint, "draw-rect", this[_canvasPool$].currentTransform);
        this[_drawElement](element, rect.topLeft, paint);
      } else {
        this.setUpPaint(paint, rect);
        this[_canvasPool$].drawRect(rect, paint.style);
        this.tearDownPaint();
      }
    }
    [_drawElement](element, offset, paint) {
      let t$36537;
      if (element == null) dart.nullFailed(I[278], 432, 18, "element");
      if (offset == null) dart.nullFailed(I[278], 432, 37, "offset");
      if (paint == null) dart.nullFailed(I[278], 432, 62, "paint");
      if (dart.test(this[_canvasPool$].isClipped)) {
        let clipElements = _engine._clipContent(dart.nullCheck(this[_canvasPool$].clipStack), element, ui.Offset.zero, _engine.transformWithOffset(this[_canvasPool$].currentTransform, offset));
        for (let clipElement of clipElements) {
          this.rootElement.append(clipElement);
          this[_children][$add](clipElement);
        }
      } else {
        this.rootElement.append(element);
        this[_children][$add](element);
      }
      let blendMode = paint.blendMode;
      if (blendMode != null) {
        _engine['DomCSSStyleDeclarationExtension|set#mixBlendMode'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), (t$36537 = _engine.blendModeToCssMixBlendMode(blendMode), t$36537 == null ? "" : t$36537));
      }
      this[_closeCanvas]();
    }
    drawRRect(rrect, paint) {
      if (rrect == null) dart.nullFailed(I[278], 456, 27, "rrect");
      if (paint == null) dart.nullFailed(I[278], 456, 51, "paint");
      if (dart.test(this[_useDomForRenderingFillAndStroke](paint))) {
        let rect = _engine.adjustRectForDom(rrect.outerRect, paint);
        let element = _engine.buildDrawRectElement(rect, paint, "draw-rrect", this[_canvasPool$].currentTransform);
        _engine.applyRRectBorderRadius(js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), rrect);
        this[_drawElement](element, rect.topLeft, paint);
      } else {
        this.setUpPaint(paint, rrect.outerRect);
        this[_canvasPool$].drawRRect(rrect, paint.style);
        this.tearDownPaint();
      }
    }
    drawDRRect(outer, inner, paint) {
      if (outer == null) dart.nullFailed(I[278], 471, 28, "outer");
      if (inner == null) dart.nullFailed(I[278], 471, 44, "inner");
      if (paint == null) dart.nullFailed(I[278], 471, 68, "paint");
      this.setUpPaint(paint, outer.outerRect);
      this[_canvasPool$].drawDRRect(outer, inner, paint.style);
      this.tearDownPaint();
    }
    drawOval(rect, paint) {
      if (rect == null) dart.nullFailed(I[278], 478, 25, "rect");
      if (paint == null) dart.nullFailed(I[278], 478, 48, "paint");
      if (dart.test(this[_useDomForRenderingFill](paint))) {
        rect = _engine.adjustRectForDom(rect, paint);
        let element = _engine.buildDrawRectElement(rect, paint, "draw-oval", this[_canvasPool$].currentTransform);
        this[_drawElement](element, rect.topLeft, paint);
        _engine['DomCSSStyleDeclarationExtension|set#borderRadius'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), dart.strSafe(dart.notNull(rect.width) / 2.0) + "px / " + dart.strSafe(dart.notNull(rect.height) / 2.0) + "px");
      } else {
        this.setUpPaint(paint, rect);
        this[_canvasPool$].drawOval(rect, paint.style);
        this.tearDownPaint();
      }
    }
    drawCircle(c, radius, paint) {
      if (c == null) dart.nullFailed(I[278], 494, 29, "c");
      if (radius == null) dart.nullFailed(I[278], 494, 39, "radius");
      if (paint == null) dart.nullFailed(I[278], 494, 64, "paint");
      if (dart.test(this[_useDomForRenderingFillAndStroke](paint))) {
        let rect = _engine.adjustRectForDom(new ui.Rect.fromCircle({center: c, radius: radius}), paint);
        let element = _engine.buildDrawRectElement(rect, paint, "draw-circle", this[_canvasPool$].currentTransform);
        this[_drawElement](element, rect.topLeft, paint);
        _engine['DomCSSStyleDeclarationExtension|set#borderRadius'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "50%");
      } else {
        this.setUpPaint(paint, paint.shader != null ? new ui.Rect.fromCircle({center: c, radius: radius}) : null);
        this[_canvasPool$].drawCircle(c, radius, paint.style);
        this.tearDownPaint();
      }
    }
    drawPath(path, paint) {
      let t$36537;
      if (path == null) dart.nullFailed(I[278], 514, 25, "path");
      if (paint == null) dart.nullFailed(I[278], 514, 48, "paint");
      if (dart.test(this[_useDomForRenderingFill](paint))) {
        let transform = this[_canvasPool$].currentTransform;
        let surfacePath = T$9.SurfacePath()[_as](path);
        let pathAsRect = surfacePath.toRect();
        if (pathAsRect != null) {
          this.drawRect(pathAsRect, paint);
          return;
        }
        let pathAsRRect = surfacePath.toRoundedRect();
        if (pathAsRRect != null) {
          this.drawRRect(pathAsRRect, paint);
          return;
        }
        let svgElm = _engine.pathToSvgElement(surfacePath, paint);
        if (!dart.test(this[_canvasPool$].isClipped)) {
          let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), svgElm, "style");
          _engine['DomCSSStyleDeclarationExtension|set#position'](style, "absolute");
          if (!dart.test(transform.isIdentity())) {
            t$36537 = style;
            (() => {
              _engine['DomCSSStyleDeclarationExtension|set#transform'](t$36537, _engine.matrix4ToCssTransform(transform));
              _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$36537, "0 0 0");
              return t$36537;
            })();
          }
        }
        this[_applyFilter](svgElm, paint);
        this[_drawElement](svgElm, ui.Offset.zero, paint);
      } else {
        this.setUpPaint(paint, paint.shader != null ? path.getBounds() : null);
        if (paint.style == null && paint.strokeWidth != null) {
          this[_canvasPool$].drawPath(path, ui.PaintingStyle.stroke);
        } else {
          this[_canvasPool$].drawPath(path, paint.style);
        }
        this.tearDownPaint();
      }
    }
    [_applyFilter](element, paint) {
      if (element == null) dart.nullFailed(I[278], 552, 32, "element");
      if (paint == null) dart.nullFailed(I[278], 552, 58, "paint");
      if (paint.maskFilter != null) {
        let isStroke = paint.style == ui.PaintingStyle.stroke;
        let cssColor = _engine.colorValueToCssString(paint.color);
        let sigma = dart.nullCheck(paint.maskFilter).webOnlySigma;
        if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit && !isStroke) {
          _engine['DomCSSStyleDeclarationExtension|set#boxShadow'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "0px 0px " + dart.strSafe(dart.notNull(sigma) * 2.0) + "px " + dart.str(cssColor));
        } else {
          _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "blur(" + dart.str(sigma) + "px)");
        }
      }
    }
    drawShadow(path, color, elevation, transparentOccluder) {
      if (path == null) dart.nullFailed(I[278], 569, 27, "path");
      if (color == null) dart.nullFailed(I[278], 569, 42, "color");
      if (elevation == null) dart.nullFailed(I[278], 569, 56, "elevation");
      if (transparentOccluder == null) dart.nullFailed(I[278], 570, 12, "transparentOccluder");
      this[_canvasPool$].drawShadow(path, color, elevation, transparentOccluder);
    }
    drawImage(image, p, paint) {
      if (image == null) dart.nullFailed(I[278], 575, 27, "image");
      if (p == null) dart.nullFailed(I[278], 575, 44, "p");
      if (paint == null) dart.nullFailed(I[278], 575, 64, "paint");
      let imageElement = this[_drawImage](image, p, paint);
      if (paint.colorFilter != null) {
        this[_applyTargetSize](imageElement, image.width[$toDouble](), image.height[$toDouble]());
      }
      if (!dart.test(this[_preserveImageData])) {
        this[_closeCanvas]();
      }
    }
    [_reuseOrCreateImage](htmlImage) {
      if (htmlImage == null) dart.nullFailed(I[278], 586, 53, "htmlImage");
      let cacheKey = dart.nullCheck(_engine['DomHTMLImageElementExtension|get#src'](htmlImage.imgElement));
      if (this[_elementCache] != null) {
        let imageElement = T$10.DomHTMLImageElementN()[_as](dart.nullCheck(this[_elementCache]).reuse(cacheKey));
        if (imageElement != null) {
          return imageElement;
        }
      }
      let newImageElement = htmlImage.cloneImageElement();
      if (this[_elementCache] != null) {
        dart.nullCheck(this[_elementCache]).cache(cacheKey, newImageElement, C[855] || CT.C855);
      }
      return newImageElement;
    }
    static _onEvictElement(element) {
      if (element == null) dart.nullFailed(I[278], 603, 46, "element");
      element.remove();
    }
    [_drawImage](image, p, paint) {
      let t$36537, t$36537$, t$36537$0;
      if (image == null) dart.nullFailed(I[278], 608, 16, "image");
      if (p == null) dart.nullFailed(I[278], 608, 33, "p");
      if (paint == null) dart.nullFailed(I[278], 608, 53, "paint");
      let htmlImage = T$10.HtmlImage()[_as](image);
      let blendMode = paint.blendMode;
      let colorFilter = _engine.createHtmlColorFilter(paint.colorFilter);
      let imgElement = null;
      if (T$10.ModeHtmlColorFilter()[_is](colorFilter)) {
        imgElement = this[_createImageElementWithBlend](image, colorFilter.color, colorFilter.blendMode, paint);
      } else if (T$10.MatrixHtmlColorFilter()[_is](colorFilter)) {
        imgElement = this[_createImageElementWithSvgColorMatrixFilter](image, colorFilter.matrix, paint);
      } else {
        imgElement = this[_reuseOrCreateImage](htmlImage);
      }
      _engine['DomCSSStyleDeclarationExtension|set#mixBlendMode'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), imgElement, "style"), (t$36537 = _engine.blendModeToCssMixBlendMode(blendMode), t$36537 == null ? "" : t$36537));
      if (dart.test(this[_preserveImageData]) && T$10.DomHTMLImageElement()[_is](imgElement)) {
        this.setUpPaint(paint, null);
        this[_canvasPool$].drawImage(imgElement, p);
        this.tearDownPaint();
      } else {
        if (dart.test(this[_canvasPool$].isClipped)) {
          t$36537$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), imgElement, "style");
          (() => {
            _engine['DomCSSStyleDeclarationExtension|removeProperty'](t$36537$, "width");
            _engine['DomCSSStyleDeclarationExtension|removeProperty'](t$36537$, "height");
            return t$36537$;
          })();
          let clipElements = _engine._clipContent(dart.nullCheck(this[_canvasPool$].clipStack), imgElement, p, this[_canvasPool$].currentTransform);
          for (let clipElement of clipElements) {
            this.rootElement.append(clipElement);
            this[_children][$add](clipElement);
          }
        } else {
          let cssTransform = _engine.float64ListToCssTransform(_engine.transformWithOffset(this[_canvasPool$].currentTransform, p).storage);
          t$36537$0 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), imgElement, "style");
          (() => {
            _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$36537$0, "0 0 0");
            _engine['DomCSSStyleDeclarationExtension|set#transform'](t$36537$0, cssTransform);
            _engine['DomCSSStyleDeclarationExtension|removeProperty'](t$36537$0, "width");
            _engine['DomCSSStyleDeclarationExtension|removeProperty'](t$36537$0, "height");
            return t$36537$0;
          })();
          this.rootElement.append(imgElement);
          this[_children][$add](imgElement);
        }
      }
      return imgElement;
    }
    [_createImageElementWithBlend](image, color, blendMode, paint) {
      if (image == null) dart.nullFailed(I[278], 663, 57, "image");
      if (color == null) dart.nullFailed(I[278], 663, 73, "color");
      if (blendMode == null) dart.nullFailed(I[278], 664, 20, "blendMode");
      if (paint == null) dart.nullFailed(I[278], 664, 48, "paint");
      switch (blendMode) {
        case C[571] || CT.C571:
        case C[570] || CT.C570:
        case C[577] || CT.C577:
        case C[565] || CT.C565:
        case C[567] || CT.C567:
        case C[564] || CT.C564:
        case C[557] || CT.C557:
        case C[561] || CT.C561:
        case C[559] || CT.C559:
        case C[578] || CT.C578:
        case C[579] || CT.C579:
        case C[580] || CT.C580:
        case C[563] || CT.C563:
        case C[562] || CT.C562:
          {
            return this[_createImageElementWithSvgBlendFilter](image, color, blendMode, paint);
          }
        default:
          {
            return this[_createBackgroundImageWithBlend](image, color, blendMode, paint);
          }
      }
    }
    drawImageRect(image, src, dst, paint) {
      if (image == null) dart.nullFailed(I[278], 689, 16, "image");
      if (src == null) dart.nullFailed(I[278], 689, 31, "src");
      if (dst == null) dart.nullFailed(I[278], 689, 44, "dst");
      if (paint == null) dart.nullFailed(I[278], 689, 66, "paint");
      let requiresClipping = src.left !== 0 || src.top !== 0 || src.width != image.width || src.height != image.height;
      if (dst.width == image.width && dst.height == image.height && !requiresClipping && paint.colorFilter == null) {
        this[_drawImage](image, dst.topLeft, paint);
      } else {
        if (requiresClipping) {
          this.save();
          this.clipRect(dst, ui.ClipOp.intersect);
        }
        let targetLeft = dst.left;
        let targetTop = dst.top;
        if (requiresClipping) {
          if (src.width != image.width) {
            let leftMargin = -dart.notNull(src.left) * (dart.notNull(dst.width) / dart.notNull(src.width));
            targetLeft = dart.notNull(targetLeft) + leftMargin;
          }
          if (src.height != image.height) {
            let topMargin = -dart.notNull(src.top) * (dart.notNull(dst.height) / dart.notNull(src.height));
            targetTop = dart.notNull(targetTop) + topMargin;
          }
        }
        let imgElement = this[_drawImage](image, new ui.Offset.new(targetLeft, targetTop), paint);
        let targetWidth = dst.width;
        let targetHeight = dst.height;
        if (requiresClipping) {
          targetWidth = dart.notNull(targetWidth) * (dart.notNull(image.width) / dart.notNull(src.width));
          targetHeight = dart.notNull(targetHeight) * (dart.notNull(image.height) / dart.notNull(src.height));
        }
        this[_applyTargetSize](T$10.DomHTMLElement()[_as](imgElement), targetWidth, targetHeight);
        if (requiresClipping) {
          this.restore();
        }
      }
      this[_closeCanvas]();
    }
    [_applyTargetSize](imageElement, targetWidth, targetHeight) {
      let t$36537;
      if (imageElement == null) dart.nullFailed(I[278], 744, 22, "imageElement");
      if (targetWidth == null) dart.nullFailed(I[278], 744, 43, "targetWidth");
      if (targetHeight == null) dart.nullFailed(I[278], 744, 63, "targetHeight");
      let imageStyle = js_util.getProperty(T$9.DomCSSStyleDeclaration(), imageElement, "style");
      let widthPx = targetWidth[$toStringAsFixed](2) + "px";
      let heightPx = targetHeight[$toStringAsFixed](2) + "px";
      t$36537 = imageStyle;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36537, "0px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36537, "0px");
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36537, widthPx);
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36537, heightPx);
        return t$36537;
      })();
      if (!dart.test(_engine.domInstanceOfString(imageElement, "HTMLImageElement"))) {
        _engine['DomCSSStyleDeclarationExtension|set#backgroundSize'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), imageElement, "style"), widthPx + " " + heightPx);
      }
    }
    [_createBackgroundImageWithBlend](image, filterColor, colorFilterBlendMode, paint) {
      let t$36537, t$36537$, t$36538, t$36537$0;
      if (image == null) dart.nullFailed(I[278], 775, 17, "image");
      if (colorFilterBlendMode == null) dart.nullFailed(I[278], 777, 20, "colorFilterBlendMode");
      if (paint == null) dart.nullFailed(I[278], 778, 24, "paint");
      let imgElement = _engine.createDomHTMLDivElement();
      let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), imgElement, "style");
      switch (colorFilterBlendMode) {
        case C[552] || CT.C552:
        case C[560] || CT.C560:
          {
            _engine['DomCSSStyleDeclarationExtension|set#position'](style, "absolute");
            break;
          }
        case C[553] || CT.C553:
        case C[555] || CT.C555:
          {
            t$36537 = style;
            (() => {
              _engine['DomCSSStyleDeclarationExtension|set#position'](t$36537, "absolute");
              _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$36537, _engine['CssColor|toCssString'](dart.nullCheck(filterColor)));
              return t$36537;
            })();
            break;
          }
        case C[554] || CT.C554:
        case C[558] || CT.C558:
          {
            t$36537$ = style;
            (() => {
              _engine['DomCSSStyleDeclarationExtension|set#position'](t$36537$, "absolute");
              _engine['DomCSSStyleDeclarationExtension|set#backgroundImage'](t$36537$, "url('" + dart.str(_engine['DomHTMLImageElementExtension|get#src'](image.imgElement)) + "')");
              return t$36537$;
            })();
            break;
          }
        default:
          {
            t$36537$0 = style;
            (() => {
              _engine['DomCSSStyleDeclarationExtension|set#position'](t$36537$0, "absolute");
              _engine['DomCSSStyleDeclarationExtension|set#backgroundImage'](t$36537$0, "url('" + dart.str(_engine['DomHTMLImageElementExtension|get#src'](image.imgElement)) + "')");
              _engine['DomCSSStyleDeclarationExtension|set#backgroundBlendMode'](t$36537$0, (t$36538 = _engine.blendModeToCssMixBlendMode(colorFilterBlendMode), t$36538 == null ? "" : t$36538));
              _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$36537$0, _engine['CssColor|toCssString'](dart.nullCheck(filterColor)));
              return t$36537$0;
            })();
            break;
          }
      }
      return imgElement;
    }
    [_createImageElementWithSvgBlendFilter](image, filterColor, colorFilterBlendMode, paint) {
      if (image == null) dart.nullFailed(I[278], 812, 17, "image");
      if (colorFilterBlendMode == null) dart.nullFailed(I[278], 814, 20, "colorFilterBlendMode");
      if (paint == null) dart.nullFailed(I[278], 815, 24, "paint");
      let svgFilter = _engine.svgFilterFromBlendMode(filterColor, colorFilterBlendMode);
      this.rootElement.append(svgFilter.element);
      this[_children][$add](svgFilter.element);
      let imgElement = this[_reuseOrCreateImage](image);
      _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), imgElement, "style"), "url(#" + dart.str(svgFilter.id) + ")");
      if (colorFilterBlendMode == ui.BlendMode.saturation) {
        _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), imgElement, "style"), _engine['CssColor|toCssString'](dart.nullCheck(filterColor)));
      }
      return imgElement;
    }
    [_createImageElementWithSvgColorMatrixFilter](image, matrix, paint) {
      if (image == null) dart.nullFailed(I[278], 831, 17, "image");
      if (matrix == null) dart.nullFailed(I[278], 831, 37, "matrix");
      if (paint == null) dart.nullFailed(I[278], 831, 62, "paint");
      let svgFilter = _engine.svgFilterFromColorMatrix(matrix);
      this.rootElement.append(svgFilter.element);
      this[_children][$add](svgFilter.element);
      let imgElement = this[_reuseOrCreateImage](image);
      _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), imgElement, "style"), "url(#" + dart.str(svgFilter.id) + ")");
      return imgElement;
    }
    [_closeCanvas]() {
      this[_canvasPool$].closeCanvas();
      this[_childOverdraw] = true;
      this[_cachedLastCssFont] = null;
    }
    setCssFont(cssFont, textDirection) {
      if (cssFont == null) dart.nullFailed(I[278], 857, 26, "cssFont");
      if (textDirection == null) dart.nullFailed(I[278], 857, 52, "textDirection");
      let ctx = this[_canvasPool$].context;
      _engine['DomCanvasRenderingContext2DExtension|set#direction'](ctx, textDirection == ui.TextDirection.ltr ? "ltr" : "rtl");
      if (cssFont != this[_cachedLastCssFont]) {
        _engine['DomCanvasRenderingContext2DExtension|set#font'](ctx, cssFont);
        this[_cachedLastCssFont] = cssFont;
      }
    }
    measureText(text) {
      if (text == null) dart.nullFailed(I[278], 872, 37, "text");
      return _engine['DomCanvasRenderingContext2DExtension|measureText'](this[_canvasPool$].context, text);
    }
    drawText(text, x, y, opts) {
      if (text == null) dart.nullFailed(I[278], 880, 24, "text");
      if (x == null) dart.nullFailed(I[278], 880, 37, "x");
      if (y == null) dart.nullFailed(I[278], 880, 47, "y");
      let style = opts && 'style' in opts ? opts.style : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let ctx = this[_canvasPool$].context;
      if (shadows != null) {
        ctx.save();
        for (let shadow of shadows) {
          _engine['DomCanvasRenderingContext2DExtension|set#shadowColor'](ctx, _engine['CssColor|toCssString'](shadow.color));
          _engine['DomCanvasRenderingContext2DExtension|set#shadowBlur'](ctx, shadow.blurRadius);
          _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetX'](ctx, shadow.offset.dx);
          _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetY'](ctx, shadow.offset.dy);
          if (style == ui.PaintingStyle.stroke) {
            _engine['DomCanvasRenderingContext2DExtension|strokeText'](ctx, text, x, y);
          } else {
            _engine['DomCanvasRenderingContext2DExtension|fillText'](ctx, text, x, y);
          }
        }
        ctx.restore();
      }
      if (style == ui.PaintingStyle.stroke) {
        _engine['DomCanvasRenderingContext2DExtension|strokeText'](ctx, text, x, y);
      } else {
        _engine['DomCanvasRenderingContext2DExtension|fillText'](ctx, text, x, y);
      }
    }
    drawParagraph(paragraph, offset) {
      let t$36537;
      if (paragraph == null) dart.nullFailed(I[278], 908, 38, "paragraph");
      if (offset == null) dart.nullFailed(I[278], 908, 59, "offset");
      if (!dart.test(paragraph.isLaidOut)) dart.assertFailed(null, I[278], 909, 12, "paragraph.isLaidOut");
      let canCompositeIntoBitmapCanvas = dart.test(paragraph.canDrawOnCanvas) && dart.test(this[_canvasPool$].hasCanvas) && !dart.test(this[_childOverdraw]) && !dart.test(this[_renderStrategy].isInsideSvgFilterTree);
      if (canCompositeIntoBitmapCanvas) {
        paragraph.paint(this, offset);
        return;
      }
      let paragraphElement = _engine.drawParagraphElement(paragraph, offset);
      if (dart.test(this[_canvasPool$].isClipped)) {
        let clipElements = _engine._clipContent(dart.nullCheck(this[_canvasPool$].clipStack), paragraphElement, offset, this[_canvasPool$].currentTransform);
        for (let clipElement of clipElements) {
          this.rootElement.append(clipElement);
          this[_children][$add](clipElement);
        }
      } else {
        _engine.setElementTransform(paragraphElement, _engine.transformWithOffset(this[_canvasPool$].currentTransform, offset).storage);
        this.rootElement.append(paragraphElement);
      }
      this[_children][$add](paragraphElement);
      t$36537 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), paragraphElement, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36537, "0px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36537, "0px");
        return t$36537;
      })();
      this[_closeCanvas]();
    }
    drawVertices(vertices, blendMode, paint) {
      let t$36537;
      if (vertices == null) dart.nullFailed(I[278], 969, 37, "vertices");
      if (blendMode == null) dart.nullFailed(I[278], 969, 60, "blendMode");
      if (paint == null) dart.nullFailed(I[278], 970, 24, "paint");
      if (!(paint.shader == null || T$9.EngineImageShader()[_is](paint.shader))) dart.assertFailed("Linear/Radial/SweepGradient not supported yet", I[278], 975, 12, "paint.shader == null || paint.shader is EngineImageShader");
      let colors = vertices.colors;
      let mode = vertices.mode;
      let ctx = this[_canvasPool$].context;
      if (colors == null && paint.style != ui.PaintingStyle.fill && paint.shader == null) {
        let positions = mode == ui.VertexMode.triangles ? vertices.positions : _engine.convertVertexPositions(mode, vertices.positions);
        this.save();
        let color = new ui.Color.new(paint.color);
        t$36537 = this[_canvasPool$].contextHandle;
        (() => {
          t$36537.fillStyle = null;
          t$36537.strokeStyle = _engine['CssColor|toCssString'](color);
          return t$36537;
        })();
        dart.nullCheck(_engine.glRenderer).drawHairline(ctx, positions);
        this.restore();
        return;
      }
      dart.nullCheck(_engine.glRenderer).drawVertices(ctx, this.widthInBitmapPixels, this.heightInBitmapPixels, this[_canvasPool$].currentTransform, vertices, blendMode, paint);
    }
    drawPoints(pointMode, points, paint) {
      if (pointMode == null) dart.nullFailed(I[278], 1010, 20, "pointMode");
      if (points == null) dart.nullFailed(I[278], 1010, 43, "points");
      if (paint == null) dart.nullFailed(I[278], 1010, 68, "paint");
      if (pointMode == ui.PointMode.points) {
        _engine.BitmapCanvas._drawPointsPaint.style = ui.PaintingStyle.stroke;
      } else {
        _engine.BitmapCanvas._drawPointsPaint.style = ui.PaintingStyle.fill;
      }
      _engine.BitmapCanvas._drawPointsPaint.color = paint.color;
      _engine.BitmapCanvas._drawPointsPaint.maskFilter = paint.maskFilter;
      let dpr = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
      let strokeWidth = paint.strokeWidth == null ? 1.0 / dart.notNull(dpr) : dart.nullCheck(paint.strokeWidth);
      _engine.BitmapCanvas._drawPointsPaint.strokeWidth = strokeWidth;
      this.setUpPaint(_engine.BitmapCanvas._drawPointsPaint, null);
      this[_canvasPool$].drawPoints(pointMode, points, strokeWidth / 2.0);
      this.tearDownPaint();
    }
    endOfPaint() {
      let t$36537, t$36537$;
      this[_canvasPool$].endOfPaint();
      t$36537 = this[_elementCache];
      t$36537 == null ? null : t$36537.commitFrame();
      if (dart.test(this[_contains3dTransform]) && ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
        let children = _engine['DomElementExtension|get#children'](this.rootElement)[$toList]();
        for (let element of children) {
          let paintOrderElement = (t$36537$ = _engine.createDomHTMLDivElement(), (() => {
            _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36537$, "style"), "translate3d(0,0,0)");
            return t$36537$;
          })());
          paintOrderElement.append(element);
          this.rootElement.append(paintOrderElement);
          this[_children][$add](paintOrderElement);
        }
      }
      let firstChild = js_util.getProperty(T$9.DomNodeN(), this.rootElement, "firstChild");
      if (firstChild != null) {
        if (dart.test(_engine.domInstanceOfString(firstChild, "HTMLElement"))) {
          let maybeCanvas = T$10.DomHTMLElement()[_as](firstChild);
          if (_engine['DomElementExtension|get#tagName'](maybeCanvas)[$toLowerCase]() === "canvas") {
            _engine['DomCSSStyleDeclarationExtension|set#zIndex'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), maybeCanvas, "style"), "-1");
          }
        }
      }
    }
    [_computeScreenBounds](targetTransform) {
      let t$36537;
      if (targetTransform == null) dart.nullFailed(I[278], 1059, 40, "targetTransform");
      let inverted = (t$36537 = targetTransform.clone(), (() => {
        t$36537.invert();
        return t$36537;
      })());
      let dpr = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
      let width = dart.notNull(ui.window.physicalSize.width) * dart.notNull(dpr);
      let height = dart.notNull(ui.window.physicalSize.height) * dart.notNull(dpr);
      let topLeft = inverted.perspectiveTransform({x: 0.0, y: 0.0, z: 0.0});
      let topRight = inverted.perspectiveTransform({x: width, y: 0.0, z: 0.0});
      let bottomRight = inverted.perspectiveTransform({x: width, y: height, z: 0.0});
      let bottomLeft = inverted.perspectiveTransform({x: 0.0, y: height, z: 0.0});
      return new ui.Rect.fromLTRB(math.min(T$.double(), topLeft.x, math.min(T$.double(), topRight.x, math.min(T$.double(), bottomRight.x, bottomLeft.x))), math.min(T$.double(), topLeft.y, math.min(T$.double(), topRight.y, math.min(T$.double(), bottomRight.y, bottomLeft.y))), math.max(T$.double(), topLeft.x, math.max(T$.double(), topRight.x, math.max(T$.double(), bottomRight.x, bottomLeft.x))), math.max(T$.double(), topLeft.y, math.max(T$.double(), topRight.y, math.max(T$.double(), bottomRight.y, bottomLeft.y))));
    }
    [_computePictureBounds]() {
      return new ui.Rect.fromLTRB(0.0, 0.0, this[_bounds$].width, this[_bounds$].height);
    }
  };
  (_engine.BitmapCanvas.new = function(_bounds, renderStrategy, opts) {
    if (_bounds == null) dart.nullFailed(I[278], 17, 21, "_bounds");
    if (renderStrategy == null) dart.nullFailed(I[278], 17, 45, "renderStrategy");
    let density = opts && 'density' in opts ? opts.density : 1;
    if (density == null) dart.nullFailed(I[278], 18, 15, "density");
    this[_elementCache] = null;
    this[rootElement$] = _engine.createDomElement("flt-canvas");
    this[_cachedLastCssFont] = null;
    this[_children] = G$.JSArrayOfDomElement().of([]);
    this[_saveCount] = 0;
    this[_devicePixelRatio] = _engine.EngineFlutterDisplay.instance.browserDevicePixelRatio;
    this[_canvasPositionX] = null;
    this[_canvasPositionY] = null;
    this[_childOverdraw] = false;
    this[_contains3dTransform] = false;
    this[_preserveImageData] = false;
    this[_bounds$] = _bounds;
    this[_density$] = density;
    this[_renderStrategy] = renderStrategy;
    this[widthInBitmapPixels] = _engine.BitmapCanvas.widthToPhysical(_bounds.width);
    this[heightInBitmapPixels] = _engine.BitmapCanvas.heightToPhysical(_bounds.height);
    this[_canvasPool$] = new _engine.CanvasPool.new(_engine.BitmapCanvas.widthToPhysical(_bounds.width), _engine.BitmapCanvas.heightToPhysical(_bounds.height), density);
    _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.rootElement, "style"), "absolute");
    this[_canvasPositionX] = this[_bounds$].left[$floor]() - 1;
    this[_canvasPositionY] = this[_bounds$].top[$floor]() - 1;
    this[_updateRootElementTransform]();
    this[_canvasPool$].mount(T$10.DomHTMLElement()[_as](this.rootElement));
    this[_setupInitialTransform]();
  }).prototype = _engine.BitmapCanvas.prototype;
  dart.addRtiResources(_engine.BitmapCanvas, ["_engine|BitmapCanvas"]);
  dart.setMethodSignature(_engine.BitmapCanvas, () => dart.global.Object.setPrototypeOf({
    setElementCache: T$10.CrossFrameCacheNOfDomHTMLElementTovoid(),
    [_updateRootElementTransform]: T$.VoidTovoid(),
    [_setupInitialTransform]: T$.VoidTovoid(),
    doesFitBounds: T$10.RectAnddoubleTobool(),
    clear: T$.VoidTovoid(),
    isReusable: T$.VoidTobool(),
    toDataUrl: T$.VoidToString(),
    setUpPaint: T$9.SurfacePaintDataAndRectNTovoid(),
    tearDownPaint: T$.VoidTovoid(),
    save: T$.VoidToint(),
    saveLayer: T$9.RectAndPaintTovoid(),
    restore: T$.VoidTovoid(),
    restoreToCount: T$.intTovoid(),
    translate: T$9.doubleAnddoubleTovoid(),
    scale: T$9.doubleAnddoubleTovoid(),
    rotate: T$9.doubleTovoid(),
    skew: T$9.doubleAnddoubleTovoid(),
    transform: T$7.Float32ListTovoid(),
    clipRect: T$10.RectAndClipOpTovoid(),
    clipRRect: T$9.RRectTovoid(),
    clipPath: T$9.PathTovoid(),
    [_useDomForRenderingFill]: T$10.SurfacePaintDataTobool(),
    [_useDomForRenderingFillAndStroke]: T$10.SurfacePaintDataTobool(),
    drawColor: T$9.ColorAndBlendModeTovoid(),
    drawLine: T$10.OffsetAndOffsetAndSurfacePaintDataTovoid(),
    drawPaint: T$10.SurfacePaintDataTovoid(),
    drawRect: T$10.RectAndSurfacePaintDataTovoid(),
    [_drawElement]: T$10.DomElementAndOffsetAndSurfacePaintDataTovoid(),
    drawRRect: T$10.RRectAndSurfacePaintDataTovoid(),
    drawDRRect: T$10.RRectAndRRectAndSurfacePaintDataTovoid(),
    drawOval: T$10.RectAndSurfacePaintDataTovoid(),
    drawCircle: T$10.OffsetAnddoubleAndSurfacePaintDataTovoid(),
    drawPath: T$10.PathAndSurfacePaintDataTovoid(),
    [_applyFilter]: T$10.DomElementAndSurfacePaintDataTovoid(),
    drawShadow: T$9.PathAndColorAnddouble__Tovoid(),
    drawImage: T$10.ImageAndOffsetAndSurfacePaintDataTovoid(),
    [_reuseOrCreateImage]: T$10.HtmlImageToDomHTMLImageElement(),
    [_drawImage]: T$10.ImageAndOffsetAndSurfacePaintDataToDomHTMLElement(),
    [_createImageElementWithBlend]: T$10.HtmlImageAndColorAndBlendMode__ToDomHTMLElement(),
    drawImageRect: T$10.ImageAndRectAndRect__Tovoid$1(),
    [_applyTargetSize]: T$10.DomHTMLElementAnddoubleAnddoubleTovoid(),
    [_createBackgroundImageWithBlend]: T$10.HtmlImageAndColorNAndBlendMode__ToDomHTMLElement(),
    [_createImageElementWithSvgBlendFilter]: T$10.HtmlImageAndColorNAndBlendMode__ToDomHTMLElement(),
    [_createImageElementWithSvgColorMatrixFilter]: T$10.HtmlImageAndListOfdoubleAndSurfacePaintDataToDomHTMLElement(),
    [_closeCanvas]: T$.VoidTovoid(),
    setCssFont: T$10.StringAndTextDirectionTovoid(),
    measureText: T$10.StringToDomTextMetrics(),
    drawText: T$10.StringAnddoubleAnddouble__Tovoid(),
    drawParagraph: T$10.CanvasParagraphAndOffsetTovoid(),
    drawVertices: T$10.SurfaceVerticesAndBlendModeAndSurfacePaintDataTovoid(),
    drawPoints: T$10.PointModeAndFloat32ListAndSurfacePaintDataTovoid(),
    endOfPaint: T$.VoidTovoid(),
    [_computeScreenBounds]: T$10.Matrix4ToRect(),
    [_computePictureBounds]: T$9.VoidToRect$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BitmapCanvas))));
  dart.setStaticMethodSignature(_engine.BitmapCanvas, () => ['imageData', 'widthToPhysical', 'heightToPhysical', '_onEvictElement']);
  dart.setGetterSignature(_engine.BitmapCanvas, () => dart.global.Object.setPrototypeOf({
    bounds: T$8.Rect(),
    size: T$8.Size(),
    bitmapPixelCount: T$.int(),
    density: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.BitmapCanvas))));
  dart.setSetterSignature(_engine.BitmapCanvas, () => dart.global.Object.setPrototypeOf({
    bounds: T$8.Rect(),
    debugChildOverdraw: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.BitmapCanvas))));
  dart.setLibraryUri(_engine.BitmapCanvas, I[220]);
  dart.setFieldSignature(_engine.BitmapCanvas, () => dart.global.Object.setPrototypeOf({
    [_bounds$]: {type: T$8.Rect(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_elementCache]: {type: T$10.CrossFrameCacheNOfDomHTMLElement(), isConst: false, isFinal: false, libraryUri: I[220]},
    rootElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_canvasPool$]: {type: T$9.CanvasPool(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_cachedLastCssFont]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_children]: {type: T$10.ListOfDomElement(), isConst: false, isFinal: true, libraryUri: I[11]},
    widthInBitmapPixels: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    heightInBitmapPixels: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_saveCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_devicePixelRatio]: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_canvasPositionX]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_canvasPositionY]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_childOverdraw]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_contains3dTransform]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_preserveImageData]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_density$]: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_renderStrategy]: {type: T$10.RenderStrategy(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.BitmapCanvas))));
  dart.setStaticFieldSignature(_engine.BitmapCanvas, () => ['kPaddingPixels', '_drawPointsPaint']);
  dart.defineLazy(_engine.BitmapCanvas, {
    /*_engine.BitmapCanvas.kPaddingPixels*/get kPaddingPixels() {
      return 1;
    },
    /*_engine.BitmapCanvas._drawPointsPaint*/get _drawPointsPaint() {
      let t$36537;
      return t$36537 = new _engine.SurfacePaintData.new(), (() => {
        t$36537.strokeCap = ui.StrokeCap.round;
        t$36537.strokeJoin = ui.StrokeJoin.round;
        t$36537.blendMode = ui.BlendMode.srcOver;
        return t$36537;
      })();
    }
  }, false);
  var compositeOperator$ = dart.privateName(_engine, "SvgBlendMode.compositeOperator");
  var blendMode$2 = dart.privateName(_engine, "SvgBlendMode.blendMode");
  _engine.SvgBlendMode = class SvgBlendMode extends core.Object {
    get compositeOperator() {
      return this[compositeOperator$];
    }
    set compositeOperator(value) {
      super.compositeOperator = value;
    }
    get blendMode() {
      return this[blendMode$2];
    }
    set blendMode(value) {
      super.blendMode = value;
    }
    static ['_#new#tearOff'](compositeOperator, blendMode) {
      if (compositeOperator == null) dart.nullFailed(I[278], 1211, 27, "compositeOperator");
      if (blendMode == null) dart.nullFailed(I[278], 1211, 51, "blendMode");
      return new _engine.SvgBlendMode.new(compositeOperator, blendMode);
    }
  };
  (_engine.SvgBlendMode.new = function(compositeOperator, blendMode) {
    if (compositeOperator == null) dart.nullFailed(I[278], 1211, 27, "compositeOperator");
    if (blendMode == null) dart.nullFailed(I[278], 1211, 51, "blendMode");
    this[compositeOperator$] = compositeOperator;
    this[blendMode$2] = blendMode;
    ;
  }).prototype = _engine.SvgBlendMode.prototype;
  dart.addRtiResources(_engine.SvgBlendMode, ["_engine|SvgBlendMode"]);
  dart.setLibraryUri(_engine.SvgBlendMode, I[220]);
  dart.setFieldSignature(_engine.SvgBlendMode, () => dart.global.Object.setPrototypeOf({
    compositeOperator: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    blendMode: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SvgBlendMode))));
  var _roundOut = dart.privateName(_engine, "_roundOut");
  var _drawPath = dart.privateName(_engine, "_drawPath");
  var _drawImageRect = dart.privateName(_engine, "_drawImageRect");
  var _initSlices = dart.privateName(_engine, "_initSlices");
  _engine.SurfaceCanvas = class SurfaceCanvas extends core.Object {
    static new(recorder, cullRect = null) {
      if (recorder == null) dart.nullFailed(I[279], 10, 47, "recorder");
      if (dart.test(recorder.isRecording)) {
        dart.throw(new core.ArgumentError.new("\"recorder\" must not already be associated with another Canvas."));
      }
      cullRect == null ? cullRect = ui.Rect.largest : null;
      return new _engine.SurfaceCanvas.__(recorder.beginRecording(cullRect));
    }
    static ['_#new#tearOff'](recorder, cullRect = null) {
      if (recorder == null) dart.nullFailed(I[279], 10, 47, "recorder");
      return _engine.SurfaceCanvas.new(recorder, cullRect);
    }
    static ['_#_#tearOff'](_canvas) {
      if (_canvas == null) dart.nullFailed(I[279], 19, 24, "_canvas");
      return new _engine.SurfaceCanvas.__(_canvas);
    }
    save() {
      this[_canvas$].save();
    }
    saveLayer(bounds, paint) {
      if (paint == null) dart.nullFailed(I[279], 29, 44, "paint");
      if (bounds == null) {
        this[_saveLayerWithoutBounds](paint);
      } else {
        if (!dart.test(_engine.rectIsValid(bounds))) dart.assertFailed(null, I[279], 33, 14, "rectIsValid(bounds)");
        this[_saveLayer](bounds, paint);
      }
    }
    [_saveLayerWithoutBounds](paint) {
      if (paint == null) dart.nullFailed(I[279], 38, 41, "paint");
      this[_canvas$].saveLayerWithoutBounds(T$10.SurfacePaint()[_as](paint));
    }
    [_saveLayer](bounds, paint) {
      if (bounds == null) dart.nullFailed(I[279], 42, 27, "bounds");
      if (paint == null) dart.nullFailed(I[279], 42, 44, "paint");
      this[_canvas$].saveLayer(bounds, T$10.SurfacePaint()[_as](paint));
    }
    restore() {
      this[_canvas$].restore();
    }
    restoreToCount(count) {
      if (count == null) dart.nullFailed(I[279], 52, 27, "count");
      this[_canvas$].restoreToCount(count);
    }
    getSaveCount() {
      return this[_canvas$].saveCount;
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[279], 60, 25, "dx");
      if (dy == null) dart.nullFailed(I[279], 60, 36, "dy");
      this[_canvas$].translate(dx, dy);
    }
    scale(sx, sy = null) {
      let t$36537;
      if (sx == null) dart.nullFailed(I[279], 65, 21, "sx");
      return this[_scale$](sx, (t$36537 = sy, t$36537 == null ? sx : t$36537));
    }
    [_scale$](sx, sy) {
      if (sx == null) dart.nullFailed(I[279], 67, 22, "sx");
      if (sy == null) dart.nullFailed(I[279], 67, 33, "sy");
      this[_canvas$].scale(sx, sy);
    }
    rotate(radians) {
      if (radians == null) dart.nullFailed(I[279], 72, 22, "radians");
      this[_canvas$].rotate(radians);
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[279], 77, 20, "sx");
      if (sy == null) dart.nullFailed(I[279], 77, 31, "sy");
      this[_canvas$].skew(sx, sy);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[279], 82, 30, "matrix4");
      if (matrix4[$length] !== 16) {
        dart.throw(new core.ArgumentError.new("\"matrix4\" must have 16 entries."));
      }
      this[_transform$](_engine.toMatrix32(matrix4));
    }
    [_transform$](matrix4) {
      if (matrix4 == null) dart.nullFailed(I[279], 89, 31, "matrix4");
      this[_canvas$].transform(matrix4);
    }
    getTransform() {
      return _native_typed_data.NativeFloat64List.fromList(this[_canvas$].getCurrentMatrixUnsafe());
    }
    clipRect(rect, opts) {
      if (rect == null) dart.nullFailed(I[279], 99, 25, "rect");
      let clipOp = opts && 'clipOp' in opts ? opts.clipOp : C[506] || CT.C506;
      if (clipOp == null) dart.nullFailed(I[279], 100, 18, "clipOp");
      let doAntiAlias = opts && 'doAntiAlias' in opts ? opts.doAntiAlias : true;
      if (doAntiAlias == null) dart.nullFailed(I[279], 100, 53, "doAntiAlias");
      if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[279], 101, 12, "rectIsValid(rect)");
      this[_clipRect$](rect, clipOp, doAntiAlias);
    }
    [_clipRect$](rect, clipOp, doAntiAlias) {
      if (rect == null) dart.nullFailed(I[279], 105, 26, "rect");
      if (clipOp == null) dart.nullFailed(I[279], 105, 42, "clipOp");
      if (doAntiAlias == null) dart.nullFailed(I[279], 105, 55, "doAntiAlias");
      this[_canvas$].clipRect(rect, clipOp);
    }
    clipRRect(rrect, opts) {
      if (rrect == null) dart.nullFailed(I[279], 110, 27, "rrect");
      let doAntiAlias = opts && 'doAntiAlias' in opts ? opts.doAntiAlias : true;
      if (doAntiAlias == null) dart.nullFailed(I[279], 110, 40, "doAntiAlias");
      if (!dart.test(_engine.rrectIsValid(rrect))) dart.assertFailed(null, I[279], 111, 12, "rrectIsValid(rrect)");
      this[_clipRRect$](rrect, doAntiAlias);
    }
    [_clipRRect$](rrect, doAntiAlias) {
      if (rrect == null) dart.nullFailed(I[279], 115, 28, "rrect");
      if (doAntiAlias == null) dart.nullFailed(I[279], 115, 40, "doAntiAlias");
      this[_canvas$].clipRRect(rrect);
    }
    clipPath(path, opts) {
      if (path == null) dart.nullFailed(I[279], 120, 25, "path");
      let doAntiAlias = opts && 'doAntiAlias' in opts ? opts.doAntiAlias : true;
      if (doAntiAlias == null) dart.nullFailed(I[279], 120, 37, "doAntiAlias");
      this[_clipPath$](path, doAntiAlias);
    }
    [_clipPath$](path, doAntiAlias) {
      if (path == null) dart.nullFailed(I[279], 124, 26, "path");
      if (doAntiAlias == null) dart.nullFailed(I[279], 124, 37, "doAntiAlias");
      this[_canvas$].clipPath(path, {doAntiAlias: doAntiAlias});
    }
    getDestinationClipBounds() {
      let t$36537;
      t$36537 = this[_canvas$].getDestinationClipBounds();
      return t$36537 == null ? ui.Rect.largest : t$36537;
    }
    [_roundOut](rect) {
      if (rect == null) dart.nullFailed(I[279], 133, 29, "rect");
      return new ui.Rect.fromLTRB(rect.left[$floorToDouble](), rect.top[$floorToDouble](), rect.right[$ceilToDouble](), rect.bottom[$ceilToDouble]());
    }
    getLocalClipBounds() {
      let destBounds = this[_canvas$].getDestinationClipBounds();
      if (destBounds == null) {
        return ui.Rect.largest;
      }
      let transform = new _engine.Matrix4.fromFloat32List(this[_canvas$].getCurrentMatrixUnsafe());
      if (transform.invert() === 0) {
        return ui.Rect.zero;
      }
      return transform.transformRect(this[_roundOut](destBounds));
    }
    drawColor(color, blendMode) {
      if (color == null) dart.nullFailed(I[279], 157, 27, "color");
      if (blendMode == null) dart.nullFailed(I[279], 157, 47, "blendMode");
      this[_drawColor](color, blendMode);
    }
    [_drawColor](color, blendMode) {
      if (color == null) dart.nullFailed(I[279], 161, 28, "color");
      if (blendMode == null) dart.nullFailed(I[279], 161, 48, "blendMode");
      this[_canvas$].drawColor(color, blendMode);
    }
    drawLine(p1, p2, paint) {
      if (p1 == null) dart.nullFailed(I[279], 166, 27, "p1");
      if (p2 == null) dart.nullFailed(I[279], 166, 41, "p2");
      if (paint == null) dart.nullFailed(I[279], 166, 54, "paint");
      if (!dart.test(_engine.offsetIsValid(p1))) dart.assertFailed(null, I[279], 167, 12, "offsetIsValid(p1)");
      if (!dart.test(_engine.offsetIsValid(p2))) dart.assertFailed(null, I[279], 168, 12, "offsetIsValid(p2)");
      this[_drawLine](p1, p2, paint);
    }
    [_drawLine](p1, p2, paint) {
      if (p1 == null) dart.nullFailed(I[279], 172, 28, "p1");
      if (p2 == null) dart.nullFailed(I[279], 172, 42, "p2");
      if (paint == null) dart.nullFailed(I[279], 172, 55, "paint");
      this[_canvas$].drawLine(p1, p2, T$10.SurfacePaint()[_as](paint));
    }
    drawPaint(paint) {
      if (paint == null) dart.nullFailed(I[279], 177, 27, "paint");
      this[_drawPaint](paint);
    }
    [_drawPaint](paint) {
      if (paint == null) dart.nullFailed(I[279], 181, 28, "paint");
      this[_canvas$].drawPaint(T$10.SurfacePaint()[_as](paint));
    }
    drawRect(rect, paint) {
      if (rect == null) dart.nullFailed(I[279], 186, 25, "rect");
      if (paint == null) dart.nullFailed(I[279], 186, 40, "paint");
      if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[279], 187, 12, "rectIsValid(rect)");
      this[_drawRect](rect, paint);
    }
    [_drawRect](rect, paint) {
      if (rect == null) dart.nullFailed(I[279], 191, 26, "rect");
      if (paint == null) dart.nullFailed(I[279], 191, 41, "paint");
      this[_canvas$].drawRect(rect, T$10.SurfacePaint()[_as](paint));
    }
    drawRRect(rrect, paint) {
      if (rrect == null) dart.nullFailed(I[279], 196, 27, "rrect");
      if (paint == null) dart.nullFailed(I[279], 196, 43, "paint");
      if (!dart.test(_engine.rrectIsValid(rrect))) dart.assertFailed(null, I[279], 197, 12, "rrectIsValid(rrect)");
      this[_drawRRect](rrect, paint);
    }
    [_drawRRect](rrect, paint) {
      if (rrect == null) dart.nullFailed(I[279], 201, 28, "rrect");
      if (paint == null) dart.nullFailed(I[279], 201, 44, "paint");
      this[_canvas$].drawRRect(rrect, T$10.SurfacePaint()[_as](paint));
    }
    drawDRRect(outer, inner, paint) {
      if (outer == null) dart.nullFailed(I[279], 206, 28, "outer");
      if (inner == null) dart.nullFailed(I[279], 206, 44, "inner");
      if (paint == null) dart.nullFailed(I[279], 206, 60, "paint");
      if (!dart.test(_engine.rrectIsValid(outer))) dart.assertFailed(null, I[279], 207, 12, "rrectIsValid(outer)");
      if (!dart.test(_engine.rrectIsValid(inner))) dart.assertFailed(null, I[279], 208, 12, "rrectIsValid(inner)");
      this[_drawDRRect](outer, inner, paint);
    }
    [_drawDRRect](outer, inner, paint) {
      if (outer == null) dart.nullFailed(I[279], 212, 29, "outer");
      if (inner == null) dart.nullFailed(I[279], 212, 45, "inner");
      if (paint == null) dart.nullFailed(I[279], 212, 61, "paint");
      this[_canvas$].drawDRRect(outer, inner, T$10.SurfacePaint()[_as](paint));
    }
    drawOval(rect, paint) {
      if (rect == null) dart.nullFailed(I[279], 217, 25, "rect");
      if (paint == null) dart.nullFailed(I[279], 217, 40, "paint");
      if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[279], 218, 12, "rectIsValid(rect)");
      this[_drawOval](rect, paint);
    }
    [_drawOval](rect, paint) {
      if (rect == null) dart.nullFailed(I[279], 222, 26, "rect");
      if (paint == null) dart.nullFailed(I[279], 222, 41, "paint");
      this[_canvas$].drawOval(rect, T$10.SurfacePaint()[_as](paint));
    }
    drawCircle(c, radius, paint) {
      if (c == null) dart.nullFailed(I[279], 227, 29, "c");
      if (radius == null) dart.nullFailed(I[279], 227, 39, "radius");
      if (paint == null) dart.nullFailed(I[279], 227, 56, "paint");
      if (!dart.test(_engine.offsetIsValid(c))) dart.assertFailed(null, I[279], 228, 12, "offsetIsValid(c)");
      this[_drawCircle](c, radius, paint);
    }
    [_drawCircle](c, radius, paint) {
      if (c == null) dart.nullFailed(I[279], 232, 30, "c");
      if (radius == null) dart.nullFailed(I[279], 232, 40, "radius");
      if (paint == null) dart.nullFailed(I[279], 232, 57, "paint");
      this[_canvas$].drawCircle(c, radius, T$10.SurfacePaint()[_as](paint));
    }
    drawArc(rect, startAngle, sweepAngle, useCenter, paint) {
      if (rect == null) dart.nullFailed(I[279], 237, 24, "rect");
      if (startAngle == null) dart.nullFailed(I[279], 237, 37, "startAngle");
      if (sweepAngle == null) dart.nullFailed(I[279], 237, 56, "sweepAngle");
      if (useCenter == null) dart.nullFailed(I[279], 238, 12, "useCenter");
      if (paint == null) dart.nullFailed(I[279], 238, 32, "paint");
      if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[279], 239, 12, "rectIsValid(rect)");
      let path = ui.Path.new();
      if (dart.test(useCenter)) {
        path.moveTo((dart.notNull(rect.left) + dart.notNull(rect.right)) / 2.0, (dart.notNull(rect.top) + dart.notNull(rect.bottom)) / 2.0);
      }
      let forceMoveTo = !dart.test(useCenter);
      if (dart.notNull(sweepAngle) <= -6.283185307179586) {
        path.arcTo(rect, startAngle, -3.141592653589793, forceMoveTo);
        startAngle = dart.notNull(startAngle) - 3.141592653589793;
        path.arcTo(rect, startAngle, -3.141592653589793, false);
        startAngle = dart.notNull(startAngle) - 3.141592653589793;
        forceMoveTo = false;
        sweepAngle = dart.notNull(sweepAngle) + 6.283185307179586;
      }
      while (dart.notNull(sweepAngle) >= 6.283185307179586) {
        path.arcTo(rect, startAngle, 3.141592653589793, forceMoveTo);
        startAngle = dart.notNull(startAngle) + 3.141592653589793;
        path.arcTo(rect, startAngle, 3.141592653589793, false);
        startAngle = dart.notNull(startAngle) + 3.141592653589793;
        forceMoveTo = false;
        sweepAngle = dart.notNull(sweepAngle) - 6.283185307179586;
      }
      path.arcTo(rect, startAngle, sweepAngle, forceMoveTo);
      if (dart.test(useCenter)) {
        path.close();
      }
      this[_canvas$].drawPath(path, T$10.SurfacePaint()[_as](paint));
    }
    drawPath(path, paint) {
      if (path == null) dart.nullFailed(I[279], 273, 25, "path");
      if (paint == null) dart.nullFailed(I[279], 273, 40, "paint");
      this[_drawPath](path, paint);
    }
    [_drawPath](path, paint) {
      if (path == null) dart.nullFailed(I[279], 277, 26, "path");
      if (paint == null) dart.nullFailed(I[279], 277, 41, "paint");
      this[_canvas$].drawPath(path, T$10.SurfacePaint()[_as](paint));
    }
    drawImage(image, offset, paint) {
      if (image == null) dart.nullFailed(I[279], 282, 27, "image");
      if (offset == null) dart.nullFailed(I[279], 282, 44, "offset");
      if (paint == null) dart.nullFailed(I[279], 282, 61, "paint");
      if (!dart.test(_engine.offsetIsValid(offset))) dart.assertFailed(null, I[279], 283, 12, "offsetIsValid(offset)");
      this[_drawImage](image, offset, paint);
    }
    [_drawImage](image, p, paint) {
      if (image == null) dart.nullFailed(I[279], 287, 28, "image");
      if (p == null) dart.nullFailed(I[279], 287, 45, "p");
      if (paint == null) dart.nullFailed(I[279], 287, 57, "paint");
      this[_canvas$].drawImage(image, p, T$10.SurfacePaint()[_as](paint));
    }
    drawImageRect(image, src, dst, paint) {
      if (image == null) dart.nullFailed(I[279], 292, 31, "image");
      if (src == null) dart.nullFailed(I[279], 292, 46, "src");
      if (dst == null) dart.nullFailed(I[279], 292, 59, "dst");
      if (paint == null) dart.nullFailed(I[279], 292, 73, "paint");
      if (!dart.test(_engine.rectIsValid(src))) dart.assertFailed(null, I[279], 293, 12, "rectIsValid(src)");
      if (!dart.test(_engine.rectIsValid(dst))) dart.assertFailed(null, I[279], 294, 12, "rectIsValid(dst)");
      this[_drawImageRect](image, src, dst, paint);
    }
    [_drawImageRect](image, src, dst, paint) {
      if (image == null) dart.nullFailed(I[279], 299, 16, "image");
      if (src == null) dart.nullFailed(I[279], 299, 31, "src");
      if (dst == null) dart.nullFailed(I[279], 299, 44, "dst");
      if (paint == null) dart.nullFailed(I[279], 299, 58, "paint");
      this[_canvas$].drawImageRect(image, src, dst, T$10.SurfacePaint()[_as](paint));
    }
    [_initSlices](img0, imgC0, imgC1, img1, dst0, dst1) {
      if (img0 == null) dart.nullFailed(I[279], 308, 35, "img0");
      if (imgC0 == null) dart.nullFailed(I[279], 308, 48, "imgC0");
      if (imgC1 == null) dart.nullFailed(I[279], 308, 62, "imgC1");
      if (img1 == null) dart.nullFailed(I[279], 308, 76, "img1");
      if (dst0 == null) dart.nullFailed(I[279], 308, 89, "dst0");
      if (dst1 == null) dart.nullFailed(I[279], 308, 102, "dst1");
      let imageDim = dart.notNull(img1) - dart.notNull(img0);
      let destDim = dart.notNull(dst1) - dart.notNull(dst0);
      if (imageDim === destDim) {
        return G$.JSArrayOfdouble().of([img0, dst0, img1, dst1]);
      }
      let edge0Dim = dart.notNull(imgC0) - dart.notNull(img0);
      let edge1Dim = dart.notNull(img1) - dart.notNull(imgC1);
      let edgesDim = edge0Dim + edge1Dim;
      if (edgesDim >= destDim) {
        let dstC = dart.notNull(dst0) + destDim * edge0Dim / edgesDim;
        return G$.JSArrayOfdouble().of([img0, dst0, imgC0, dstC, imgC1, dstC, img1, dst1]);
      }
      let dstC0 = dart.notNull(dst0) + edge0Dim;
      let dstC1 = dart.notNull(dst1) - edge1Dim;
      return G$.JSArrayOfdouble().of([img0, dst0, imgC0, dstC0, imgC0, dstC0, imgC1, dstC1, imgC1, dstC1, img1, dst1]);
    }
    drawImageNine(image, center, dst, paint) {
      if (image == null) dart.nullFailed(I[279], 346, 16, "image");
      if (center == null) dart.nullFailed(I[279], 346, 31, "center");
      if (dst == null) dart.nullFailed(I[279], 346, 47, "dst");
      if (paint == null) dart.nullFailed(I[279], 346, 61, "paint");
      if (!dart.test(_engine.rectIsValid(center))) dart.assertFailed(null, I[279], 347, 12, "rectIsValid(center)");
      if (!dart.test(_engine.rectIsValid(dst))) dart.assertFailed(null, I[279], 348, 12, "rectIsValid(dst)");
      if (dart.test(dst.isEmpty)) {
        return;
      }
      let hSlices = this[_initSlices](0.0, center.left, center.right, image.width[$toDouble](), dst.left, dst.right);
      let vSlices = this[_initSlices](0.0, center.top, center.bottom, image.height[$toDouble](), dst.top, dst.bottom);
      for (let yi = 0; yi < dart.notNull(vSlices[$length]); yi = yi + 4) {
        let srcY0 = vSlices[$_get](yi);
        let dstY0 = vSlices[$_get](yi + 1);
        let srcY1 = vSlices[$_get](yi + 2);
        let dstY1 = vSlices[$_get](yi + 3);
        for (let xi = 0; xi < dart.notNull(hSlices[$length]); xi = xi + 4) {
          let srcX0 = hSlices[$_get](xi);
          let dstX0 = hSlices[$_get](xi + 1);
          let srcX1 = hSlices[$_get](xi + 2);
          let dstX1 = hSlices[$_get](xi + 3);
          this.drawImageRect(image, new ui.Rect.fromLTRB(srcX0, srcY0, srcX1, srcY1), new ui.Rect.fromLTRB(dstX0, dstY0, dstX1, dstY1), paint);
        }
      }
    }
    drawPicture(picture) {
      if (picture == null) dart.nullFailed(I[279], 392, 31, "picture");
      this[_canvas$].drawPicture(picture);
    }
    drawParagraph(paragraph, offset) {
      if (paragraph == null) dart.nullFailed(I[279], 397, 35, "paragraph");
      if (offset == null) dart.nullFailed(I[279], 397, 56, "offset");
      if (!dart.test(_engine.offsetIsValid(offset))) dart.assertFailed(null, I[279], 398, 12, "offsetIsValid(offset)");
      this[_drawParagraph](paragraph, offset);
    }
    [_drawParagraph](paragraph, offset) {
      if (paragraph == null) dart.nullFailed(I[279], 402, 36, "paragraph");
      if (offset == null) dart.nullFailed(I[279], 402, 57, "offset");
      this[_canvas$].drawParagraph(paragraph, offset);
    }
    drawPoints(pointMode, points, paint) {
      if (pointMode == null) dart.nullFailed(I[279], 408, 20, "pointMode");
      if (points == null) dart.nullFailed(I[279], 408, 47, "points");
      if (paint == null) dart.nullFailed(I[279], 408, 64, "paint");
      let pointList = _engine.offsetListToFloat32List(points);
      this.drawRawPoints(pointMode, pointList, paint);
    }
    drawRawPoints(pointMode, points, paint) {
      if (pointMode == null) dart.nullFailed(I[279], 415, 20, "pointMode");
      if (points == null) dart.nullFailed(I[279], 415, 43, "points");
      if (paint == null) dart.nullFailed(I[279], 415, 60, "paint");
      if (points[$length][$modulo](2) !== 0) {
        dart.throw(new core.ArgumentError.new("\"points\" must have an even number of values."));
      }
      this[_canvas$].drawRawPoints(pointMode, points, T$10.SurfacePaint()[_as](paint));
    }
    drawVertices(vertices, blendMode, paint) {
      if (vertices == null) dart.nullFailed(I[279], 424, 19, "vertices");
      if (blendMode == null) dart.nullFailed(I[279], 424, 42, "blendMode");
      if (paint == null) dart.nullFailed(I[279], 424, 62, "paint");
      this[_canvas$].drawVertices(T$10.SurfaceVertices()[_as](vertices), blendMode, T$10.SurfacePaint()[_as](paint));
    }
    drawAtlas(atlas, transforms, rects, colors, blendMode, cullRect, paint) {
      if (atlas == null) dart.nullFailed(I[279], 431, 14, "atlas");
      if (transforms == null) dart.nullFailed(I[279], 432, 26, "transforms");
      if (rects == null) dart.nullFailed(I[279], 433, 19, "rects");
      if (paint == null) dart.nullFailed(I[279], 437, 14, "paint");
      if (!(colors == null || dart.test(colors[$isEmpty]) || blendMode != null)) dart.assertFailed(null, I[279], 439, 12, "colors == null || colors.isEmpty || blendMode != null");
      let rectCount = rects[$length];
      if (transforms[$length] != rectCount) {
        dart.throw(new core.ArgumentError.new("\"transforms\" and \"rects\" lengths must match."));
      }
      if (colors != null && dart.test(colors[$isNotEmpty]) && colors[$length] != rectCount) {
        dart.throw(new core.ArgumentError.new("If non-null, \"colors\" length must match that of \"transforms\" and \"rects\"."));
      }
      dart.throw(new core.UnimplementedError.new());
    }
    drawRawAtlas(atlas, rstTransforms, rects, colors, blendMode, cullRect, paint) {
      if (atlas == null) dart.nullFailed(I[279], 456, 14, "atlas");
      if (rstTransforms == null) dart.nullFailed(I[279], 457, 17, "rstTransforms");
      if (rects == null) dart.nullFailed(I[279], 458, 17, "rects");
      if (paint == null) dart.nullFailed(I[279], 462, 14, "paint");
      if (!(colors == null || blendMode != null)) dart.assertFailed(null, I[279], 464, 12, "colors == null || blendMode != null");
      let rectCount = rects[$length];
      if (rstTransforms[$length] != rectCount) {
        dart.throw(new core.ArgumentError.new("\"rstTransforms\" and \"rects\" lengths must match."));
      }
      if (rectCount[$modulo](4) !== 0) {
        dart.throw(new core.ArgumentError.new("\"rstTransforms\" and \"rects\" lengths must be a multiple of four."));
      }
      if (colors != null && dart.notNull(colors[$length]) * 4 !== rectCount) {
        dart.throw(new core.ArgumentError.new("If non-null, \"colors\" length must be one fourth the length of \"rstTransforms\" and \"rects\"."));
      }
      dart.throw(new core.UnimplementedError.new());
    }
    drawShadow(path, color, elevation, transparentOccluder) {
      if (path == null) dart.nullFailed(I[279], 485, 13, "path");
      if (color == null) dart.nullFailed(I[279], 486, 14, "color");
      if (elevation == null) dart.nullFailed(I[279], 487, 12, "elevation");
      if (transparentOccluder == null) dart.nullFailed(I[279], 488, 10, "transparentOccluder");
      this[_canvas$].drawShadow(path, color, elevation, transparentOccluder);
    }
  };
  (_engine.SurfaceCanvas.__ = function(_canvas) {
    if (_canvas == null) dart.nullFailed(I[279], 19, 24, "_canvas");
    this[_canvas$] = _canvas;
    ;
  }).prototype = _engine.SurfaceCanvas.prototype;
  dart.addRtiResources(_engine.SurfaceCanvas, ["_engine|SurfaceCanvas", "ui|Canvas"]);
  dart.setMethodSignature(_engine.SurfaceCanvas, () => dart.global.Object.setPrototypeOf({
    save: T$.VoidTovoid(),
    saveLayer: T$9.RectNAndPaintTovoid(),
    [_saveLayerWithoutBounds]: T$9.PaintTovoid(),
    [_saveLayer]: T$9.RectAndPaintTovoid(),
    restore: T$.VoidTovoid(),
    restoreToCount: T$.intTovoid(),
    getSaveCount: T$.VoidToint(),
    translate: T$9.doubleAnddoubleTovoid(),
    scale: T$9.doubleAnddoubleNTovoid(),
    [_scale$]: T$9.doubleAnddoubleTovoid(),
    rotate: T$9.doubleTovoid(),
    skew: T$9.doubleAnddoubleTovoid(),
    transform: T$9.Float64ListTovoid(),
    [_transform$]: T$7.Float32ListTovoid(),
    getTransform: T$0.VoidToFloat64List(),
    clipRect: T$9.Rect__Tovoid(),
    [_clipRect$]: T$9.RectAndClipOpAndboolTovoid(),
    clipRRect: T$9.RRect__Tovoid(),
    [_clipRRect$]: T$9.RRectAndboolTovoid(),
    clipPath: T$9.Path__Tovoid(),
    [_clipPath$]: T$10.PathAndboolTovoid(),
    getDestinationClipBounds: T$9.VoidToRect$1(),
    [_roundOut]: T$8.RectToRect(),
    getLocalClipBounds: T$9.VoidToRect$1(),
    drawColor: T$9.ColorAndBlendModeTovoid(),
    [_drawColor]: T$9.ColorAndBlendModeTovoid(),
    drawLine: T$9.OffsetAndOffsetAndPaintTovoid(),
    [_drawLine]: T$9.OffsetAndOffsetAndPaintTovoid(),
    drawPaint: T$9.PaintTovoid(),
    [_drawPaint]: T$9.PaintTovoid(),
    drawRect: T$9.RectAndPaintTovoid(),
    [_drawRect]: T$9.RectAndPaintTovoid(),
    drawRRect: T$9.RRectAndPaintTovoid(),
    [_drawRRect]: T$9.RRectAndPaintTovoid(),
    drawDRRect: T$9.RRectAndRRectAndPaintTovoid(),
    [_drawDRRect]: T$9.RRectAndRRectAndPaintTovoid(),
    drawOval: T$9.RectAndPaintTovoid(),
    [_drawOval]: T$9.RectAndPaintTovoid(),
    drawCircle: T$9.OffsetAnddoubleAndPaintTovoid(),
    [_drawCircle]: T$9.OffsetAnddoubleAndPaintTovoid(),
    drawArc: T$9.RectAnddoubleAnddouble__Tovoid$1(),
    drawPath: T$9.PathAndPaintTovoid(),
    [_drawPath]: T$9.PathAndPaintTovoid(),
    drawImage: T$9.ImageAndOffsetAndPaintTovoid(),
    [_drawImage]: T$9.ImageAndOffsetAndPaintTovoid(),
    drawImageRect: T$9.ImageAndRectAndRect__Tovoid(),
    [_drawImageRect]: T$9.ImageAndRectAndRect__Tovoid(),
    [_initSlices]: T$10.doubleAnddoubleAnddouble__ToListOfdouble(),
    drawImageNine: T$9.ImageAndRectAndRect__Tovoid(),
    drawPicture: T$9.PictureTovoid(),
    drawParagraph: T$9.ParagraphAndOffsetTovoid(),
    [_drawParagraph]: T$9.ParagraphAndOffsetTovoid(),
    drawPoints: T$9.PointModeAndListOfOffsetAndPaintTovoid(),
    drawRawPoints: T$9.PointModeAndFloat32ListAndPaintTovoid(),
    drawVertices: T$9.VerticesAndBlendModeAndPaintTovoid(),
    drawAtlas: T$9.ImageAndListOfRSTransformAndListOfRect__Tovoid(),
    drawRawAtlas: T$9.ImageAndFloat32ListAndFloat32List__Tovoid(),
    drawShadow: T$9.PathAndColorAnddouble__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SurfaceCanvas))));
  dart.setStaticMethodSignature(_engine.SurfaceCanvas, () => ['new']);
  dart.setLibraryUri(_engine.SurfaceCanvas, I[220]);
  dart.setFieldSignature(_engine.SurfaceCanvas, () => dart.global.Object.setPrototypeOf({[_canvas$]: {type: T$10.RecordingCanvas(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfaceCanvas))));
  var _childContainer$ = dart.privateName(_engine, "_DomClip._childContainer");
  _engine._DomClip = class _DomClip extends _engine.PersistedContainerSurface {};
  _engine._DomClip[dart.mixinOn] = PersistedContainerSurface => class _DomClip extends PersistedContainerSurface {
    get [_childContainer]() {
      return this[_childContainer$];
    }
    set [_childContainer](value) {
      this[_childContainer$] = value;
    }
    get childContainer() {
      return this[_childContainer];
    }
    adoptElements(oldSurface) {
      T$10._DomClip()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[280], 19, 31, "oldSurface");
      super.adoptElements(oldSurface);
      this[_childContainer] = oldSurface[_childContainer];
      oldSurface[_childContainer] = null;
    }
    createElement() {
      let element = this.defaultCreateElement("flt-clip");
      this[_childContainer] = _engine.createDomElement("flt-clip-interior");
      ;
      _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_childContainer]), "style"), "absolute");
      element.append(dart.nullCheck(this[_childContainer]));
      return element;
    }
    discard() {
      super.discard();
      this[_childContainer] = null;
    }
    applyOverflow(element, clipBehaviour) {
      let t$36537;
      if (element == null) dart.nullFailed(I[280], 49, 33, "element");
      if (!dart.test(_engine.debugShowClipLayers)) {
        if (clipBehaviour != ui.Clip.none) {
          t$36537 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
          (() => {
            _engine['DomCSSStyleDeclarationExtension|set#overflow'](t$36537, "hidden");
            _engine['DomCSSStyleDeclarationExtension|set#zIndex'](t$36537, "0");
            return t$36537;
          })();
        }
      } else {
        _engine['DomCSSStyleDeclarationExtension|set#boxShadow'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "inset 0 0 10px green");
      }
    }
  };
  (_engine._DomClip[dart.mixinNew] = function() {
    this[_childContainer$] = null;
  }).prototype = _engine._DomClip.prototype;
  dart.addRtiResources(_engine._DomClip, ["_engine|_DomClip"]);
  dart.setMethodSignature(_engine._DomClip, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    applyOverflow: T$10.DomElementAndClipNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._DomClip))));
  dart.setLibraryUri(_engine._DomClip, I[220]);
  dart.setFieldSignature(_engine._DomClip, () => dart.global.Object.setPrototypeOf({[_childContainer]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine._DomClip))));
  var clipBehavior$ = dart.privateName(_engine, "PersistedClipRect.clipBehavior");
  var rect$1 = dart.privateName(_engine, "PersistedClipRect.rect");
  const PersistedContainerSurface__DomClip$36 = class PersistedContainerSurface__DomClip extends _engine.PersistedContainerSurface {};
  (PersistedContainerSurface__DomClip$36.new = function(oldLayer) {
    _engine._DomClip[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(PersistedContainerSurface__DomClip$36).new.call(this, oldLayer);
  }).prototype = PersistedContainerSurface__DomClip$36.prototype;
  dart.applyMixin(PersistedContainerSurface__DomClip$36, _engine._DomClip);
  _engine.PersistedClipRect = class PersistedClipRect extends PersistedContainerSurface__DomClip$36 {
    get clipBehavior() {
      return this[clipBehavior$];
    }
    set clipBehavior(value) {
      super.clipBehavior = value;
    }
    get rect() {
      return this[rect$1];
    }
    set rect(value) {
      super.rect = value;
    }
    static ['_#new#tearOff'](oldLayer, rect, clipBehavior) {
      if (rect == null) dart.nullFailed(I[280], 71, 61, "rect");
      return new _engine.PersistedClipRect.new(oldLayer, rect, clipBehavior);
    }
    recomputeTransformAndClip() {
      this.transform = dart.nullCheck(this.parent).transform;
      if (this.clipBehavior != ui.Clip.none) {
        this.localClipBounds = this.rect;
      } else {
        this.localClipBounds = null;
      }
      this.projectedClip = null;
    }
    createElement() {
      let t$36537;
      t$36537 = super.createElement();
      return (() => {
        _engine['DomElementExtension|setAttribute'](t$36537, "clip-type", "rect");
        return t$36537;
      })();
    }
    apply() {
      let t$36537, t$36537$;
      t$36537 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36537, dart.str(this.rect.left) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36537, dart.str(this.rect.top) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36537, dart.strSafe(dart.notNull(this.rect.right) - dart.notNull(this.rect.left)) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36537, dart.strSafe(dart.notNull(this.rect.bottom) - dart.notNull(this.rect.top)) + "px");
        return t$36537;
      })();
      this.applyOverflow(dart.nullCheck(this.rootElement), this.clipBehavior);
      t$36537$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.childContainer), "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36537$, dart.strSafe(-dart.notNull(this.rect.left)) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36537$, dart.strSafe(-dart.notNull(this.rect.top)) + "px");
        return t$36537$;
      })();
    }
    update(oldSurface) {
      T$10.PersistedClipRect()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[280], 109, 33, "oldSurface");
      super.update(oldSurface);
      if (!dart.equals(this.rect, oldSurface.rect) || this.clipBehavior != oldSurface.clipBehavior) {
        this.localClipBounds = null;
        this.apply();
      }
    }
    get isClipping() {
      return true;
    }
  };
  (_engine.PersistedClipRect.new = function(oldLayer, rect, clipBehavior) {
    if (rect == null) dart.nullFailed(I[280], 71, 61, "rect");
    this[rect$1] = rect;
    this[clipBehavior$] = clipBehavior;
    dart.global.Object.getPrototypeOf(_engine.PersistedClipRect).new.call(this, oldLayer);
    ;
  }).prototype = _engine.PersistedClipRect.prototype;
  dart.addRtiResources(_engine.PersistedClipRect, ["_engine|PersistedClipRect", "ui|ClipRectEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedClipRect, () => dart.global.Object.setPrototypeOf({apply: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedClipRect))));
  dart.setLibraryUri(_engine.PersistedClipRect, I[220]);
  dart.setFieldSignature(_engine.PersistedClipRect, () => dart.global.Object.setPrototypeOf({
    clipBehavior: {type: T$10.ClipN(), isConst: false, isFinal: true, libraryUri: I[198]},
    rect: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedClipRect))));
  var rrect$1 = dart.privateName(_engine, "PersistedClipRRect.rrect");
  var clipBehavior$0 = dart.privateName(_engine, "PersistedClipRRect.clipBehavior");
  const PersistedContainerSurface__DomClip$36$ = class PersistedContainerSurface__DomClip extends _engine.PersistedContainerSurface {};
  (PersistedContainerSurface__DomClip$36$.new = function(oldLayer) {
    _engine._DomClip[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(PersistedContainerSurface__DomClip$36$).new.call(this, oldLayer);
  }).prototype = PersistedContainerSurface__DomClip$36$.prototype;
  dart.applyMixin(PersistedContainerSurface__DomClip$36$, _engine._DomClip);
  _engine.PersistedClipRRect = class PersistedClipRRect extends PersistedContainerSurface__DomClip$36$ {
    get rrect() {
      return this[rrect$1];
    }
    set rrect(value) {
      super.rrect = value;
    }
    get clipBehavior() {
      return this[clipBehavior$0];
    }
    set clipBehavior(value) {
      super.clipBehavior = value;
    }
    static ['_#new#tearOff'](oldLayer, rrect, clipBehavior) {
      if (rrect == null) dart.nullFailed(I[280], 125, 53, "rrect");
      return new _engine.PersistedClipRRect.new(oldLayer, rrect, clipBehavior);
    }
    recomputeTransformAndClip() {
      this.transform = dart.nullCheck(this.parent).transform;
      if (this.clipBehavior != ui.Clip.none) {
        this.localClipBounds = this.rrect.outerRect;
      } else {
        this.localClipBounds = null;
      }
      this.projectedClip = null;
    }
    createElement() {
      let t$36537;
      t$36537 = super.createElement();
      return (() => {
        _engine['DomElementExtension|setAttribute'](t$36537, "clip-type", "rrect");
        return t$36537;
      })();
    }
    apply() {
      let t$36537, t$36537$;
      let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style");
      t$36537 = style;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36537, dart.str(this.rrect.left) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36537, dart.str(this.rrect.top) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36537, dart.str(this.rrect.width) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36537, dart.str(this.rrect.height) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#borderTopLeftRadius'](t$36537, dart.str(this.rrect.tlRadiusX) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#borderTopRightRadius'](t$36537, dart.str(this.rrect.trRadiusX) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#borderBottomRightRadius'](t$36537, dart.str(this.rrect.brRadiusX) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#borderBottomLeftRadius'](t$36537, dart.str(this.rrect.blRadiusX) + "px");
        return t$36537;
      })();
      this.applyOverflow(dart.nullCheck(this.rootElement), this.clipBehavior);
      t$36537$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.childContainer), "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36537$, dart.strSafe(-dart.notNull(this.rrect.left)) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36537$, dart.strSafe(-dart.notNull(this.rrect.top)) + "px");
        return t$36537$;
      })();
    }
    update(oldSurface) {
      T$10.PersistedClipRRect()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[280], 171, 34, "oldSurface");
      super.update(oldSurface);
      if (!dart.equals(this.rrect, oldSurface.rrect) || this.clipBehavior != oldSurface.clipBehavior) {
        this.localClipBounds = null;
        this.apply();
      }
    }
    get isClipping() {
      return true;
    }
  };
  (_engine.PersistedClipRRect.new = function(oldLayer, rrect, clipBehavior) {
    if (rrect == null) dart.nullFailed(I[280], 125, 53, "rrect");
    this[rrect$1] = rrect;
    this[clipBehavior$0] = clipBehavior;
    dart.global.Object.getPrototypeOf(_engine.PersistedClipRRect).new.call(this, T$10.PersistedSurfaceN()[_as](oldLayer));
    ;
  }).prototype = _engine.PersistedClipRRect.prototype;
  dart.addRtiResources(_engine.PersistedClipRRect, ["_engine|PersistedClipRRect", "ui|ClipRRectEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedClipRRect, () => dart.global.Object.setPrototypeOf({apply: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedClipRRect))));
  dart.setLibraryUri(_engine.PersistedClipRRect, I[220]);
  dart.setFieldSignature(_engine.PersistedClipRRect, () => dart.global.Object.setPrototypeOf({
    rrect: {type: T$8.RRect(), isConst: false, isFinal: true, libraryUri: I[198]},
    clipBehavior: {type: T$10.ClipN(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedClipRRect))));
  var clipPath$ = dart.privateName(_engine, "PersistedClipPath.clipPath");
  var clipBehavior$1 = dart.privateName(_engine, "PersistedClipPath.clipBehavior");
  var _clipElement = dart.privateName(_engine, "_clipElement");
  _engine.PersistedClipPath = class PersistedClipPath extends _engine.PersistedContainerSurface {
    get clipPath() {
      return this[clipPath$];
    }
    set clipPath(value) {
      super.clipPath = value;
    }
    get clipBehavior() {
      return this[clipBehavior$1];
    }
    set clipBehavior(value) {
      super.clipBehavior = value;
    }
    static ['_#new#tearOff'](oldLayer, clipPath, clipBehavior) {
      if (clipPath == null) dart.nullFailed(I[280], 187, 47, "clipPath");
      if (clipBehavior == null) dart.nullFailed(I[280], 187, 62, "clipBehavior");
      return new _engine.PersistedClipPath.new(oldLayer, clipPath, clipBehavior);
    }
    createElement() {
      return this.defaultCreateElement("flt-clippath");
    }
    recomputeTransformAndClip() {
      super.recomputeTransformAndClip();
      if (this.clipBehavior != ui.Clip.none) {
        this.localClipBounds == null ? this.localClipBounds = this.clipPath.getBounds() : null;
      } else {
        this.localClipBounds = null;
      }
    }
    apply() {
      let t$36537;
      t$36537 = this[_clipElement];
      t$36537 == null ? null : t$36537.remove();
      this[_clipElement] = _engine.createSvgClipDef(dart.nullCheck(this.childContainer), this.clipPath);
      dart.nullCheck(this.childContainer).append(dart.nullCheck(this[_clipElement]));
    }
    update(oldSurface) {
      let t$36537;
      T$10.PersistedClipPath()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[280], 216, 33, "oldSurface");
      super.update(oldSurface);
      if (!dart.equals(oldSurface.clipPath, this.clipPath)) {
        this.localClipBounds = null;
        t$36537 = oldSurface[_clipElement];
        t$36537 == null ? null : t$36537.remove();
        this.apply();
      } else {
        this[_clipElement] = oldSurface[_clipElement];
      }
      oldSurface[_clipElement] = null;
    }
    discard() {
      let t$36537;
      t$36537 = this[_clipElement];
      t$36537 == null ? null : t$36537.remove();
      this[_clipElement] = null;
      super.discard();
    }
    get isClipping() {
      return true;
    }
  };
  (_engine.PersistedClipPath.new = function(oldLayer, clipPath, clipBehavior) {
    if (clipPath == null) dart.nullFailed(I[280], 187, 47, "clipPath");
    if (clipBehavior == null) dart.nullFailed(I[280], 187, 62, "clipBehavior");
    this[_clipElement] = null;
    this[clipPath$] = clipPath;
    this[clipBehavior$1] = clipBehavior;
    dart.global.Object.getPrototypeOf(_engine.PersistedClipPath).new.call(this, oldLayer);
    ;
  }).prototype = _engine.PersistedClipPath.prototype;
  dart.addRtiResources(_engine.PersistedClipPath, ["_engine|PersistedClipPath", "ui|ClipPathEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedClipPath, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedClipPath))));
  dart.setLibraryUri(_engine.PersistedClipPath, I[220]);
  dart.setFieldSignature(_engine.PersistedClipPath, () => dart.global.Object.setPrototypeOf({
    clipPath: {type: T$10.Path(), isConst: false, isFinal: true, libraryUri: I[198]},
    clipBehavior: {type: T$8.Clip(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_clipElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedClipPath))));
  var filter$1 = dart.privateName(_engine, "PersistedColorFilter.filter");
  var containerVisible = dart.privateName(_engine, "PersistedColorFilter.containerVisible");
  var _applyBlendModeFilter = dart.privateName(_engine, "_applyBlendModeFilter");
  var _applyMatrixColorFilter = dart.privateName(_engine, "_applyMatrixColorFilter");
  _engine.PersistedColorFilter = class PersistedColorFilter extends _engine.PersistedContainerSurface {
    get filter() {
      return this[filter$1];
    }
    set filter(value) {
      super.filter = value;
    }
    get containerVisible() {
      return this[containerVisible];
    }
    set containerVisible(value) {
      if (value == null) dart.nullFailed(I[281], 24, 8, "containerVisible");
      this[containerVisible] = value;
    }
    static ['_#new#tearOff'](oldLayer, filter) {
      if (filter == null) dart.nullFailed(I[281], 11, 67, "filter");
      return new _engine.PersistedColorFilter.new(oldLayer, filter);
    }
    get childContainer() {
      return this[_childContainer];
    }
    adoptElements(oldSurface) {
      T$10.PersistedColorFilter()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[281], 27, 43, "oldSurface");
      super.adoptElements(oldSurface);
      this[_childContainer] = oldSurface[_childContainer];
      this[_filterElement] = oldSurface[_filterElement];
      oldSurface[_childContainer] = null;
    }
    preroll(prerollContext) {
      let t$36537, t$36537$;
      if (prerollContext == null) dart.nullFailed(I[281], 35, 38, "prerollContext");
      t$36537 = prerollContext;
      t$36537.activeColorFilterCount = dart.notNull(t$36537.activeColorFilterCount) + 1;
      super.preroll(prerollContext);
      t$36537$ = prerollContext;
      t$36537$.activeColorFilterCount = dart.notNull(t$36537$.activeColorFilterCount) - 1;
    }
    discard() {
      super.discard();
      _engine.ResourceManager.instance.removeResource(this[_filterElement]);
      this[_filterElement] = null;
      this[_childContainer] = null;
    }
    createElement() {
      let element = this.defaultCreateElement("flt-color-filter");
      let container = _engine.createDomElement("flt-filter-interior");
      _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), container, "style"), "absolute");
      this[_childContainer] = container;
      element.append(dart.nullCheck(this[_childContainer]));
      return element;
    }
    apply() {
      let t$36537, t$36537$;
      _engine.ResourceManager.instance.removeResource(this[_filterElement]);
      this[_filterElement] = null;
      let engineValue = _engine.createHtmlColorFilter(T$9.EngineColorFilter()[_as](this.filter));
      if (engineValue == null) {
        _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style"), "");
        t$36537 = this.childContainer;
        t$36537 == null ? null : _engine['DomCSSStyleDeclarationExtension|set#visibility'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36537, "style"), "visible");
        return;
      }
      if (T$10.ModeHtmlColorFilter()[_is](engineValue)) {
        this[_applyBlendModeFilter](engineValue);
      } else if (T$10.MatrixHtmlColorFilter()[_is](engineValue)) {
        this[_applyMatrixColorFilter](engineValue);
      } else {
        t$36537$ = this.childContainer;
        t$36537$ == null ? null : _engine['DomCSSStyleDeclarationExtension|set#visibility'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36537$, "style"), "visible");
      }
    }
    [_applyBlendModeFilter](colorFilter) {
      if (colorFilter == null) dart.nullFailed(I[281], 82, 50, "colorFilter");
      this[_filterElement] = colorFilter.makeSvgFilter(this.childContainer);
      if (this[_filterElement] == null) {
        return;
      }
      _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.childContainer), "style"), colorFilter.filterAttribute);
    }
    [_applyMatrixColorFilter](colorFilter) {
      if (colorFilter == null) dart.nullFailed(I[281], 92, 54, "colorFilter");
      this[_filterElement] = colorFilter.makeSvgFilter(this.childContainer);
      _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.childContainer), "style"), colorFilter.filterAttribute);
    }
    update(oldSurface) {
      T$10.PersistedColorFilter()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[281], 98, 36, "oldSurface");
      super.update(oldSurface);
      if (!dart.equals(oldSurface.filter, this.filter)) {
        this.apply();
      }
    }
  };
  (_engine.PersistedColorFilter.new = function(oldLayer, filter) {
    if (filter == null) dart.nullFailed(I[281], 11, 67, "filter");
    this[_childContainer] = null;
    this[_filterElement] = null;
    this[containerVisible] = true;
    this[filter$1] = filter;
    dart.global.Object.getPrototypeOf(_engine.PersistedColorFilter).new.call(this, oldLayer);
    ;
  }).prototype = _engine.PersistedColorFilter.prototype;
  dart.addRtiResources(_engine.PersistedColorFilter, ["_engine|PersistedColorFilter", "ui|ColorFilterEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedColorFilter, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid(),
    [_applyBlendModeFilter]: T$10.ModeHtmlColorFilterTovoid(),
    [_applyMatrixColorFilter]: T$10.MatrixHtmlColorFilterTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedColorFilter))));
  dart.setLibraryUri(_engine.PersistedColorFilter, I[220]);
  dart.setFieldSignature(_engine.PersistedColorFilter, () => dart.global.Object.setPrototypeOf({
    [_childContainer]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    filter: {type: T$9.ColorFilter(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_filterElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    containerVisible: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedColorFilter))));
  var id = dart.privateName(_engine, "SvgFilterBuilder.id");
  var root = dart.privateName(_engine, "SvgFilterBuilder.root");
  var filter = dart.privateName(_engine, "SvgFilterBuilder.filter");
  _engine.SvgFilterBuilder = class SvgFilterBuilder extends core.Object {
    get id() {
      return this[id];
    }
    set id(value) {
      super.id = value;
    }
    get root() {
      return this[root];
    }
    set root(value) {
      super.root = value;
    }
    get filter() {
      return this[filter];
    }
    set filter(value) {
      super.filter = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.SvgFilterBuilder.new();
    }
    set colorInterpolationFilters(filters) {
      if (filters == null) dart.nullFailed(I[281], 210, 40, "filters");
      _engine['DomElementExtension|setAttribute'](this.filter, "color-interpolation-filters", filters);
    }
    setFeColorMatrix(matrix, opts) {
      let t$36537;
      if (matrix == null) dart.nullFailed(I[281], 214, 38, "matrix");
      let result = opts && 'result' in opts ? opts.result : null;
      if (result == null) dart.nullFailed(I[281], 214, 64, "result");
      let element = _engine.createSVGFEColorMatrixElement();
      _engine['SVGAnimatedEnumerationExtenson|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedEnumerationN(), element, "type")), 1);
      _engine['SVGAnimatedStringExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedStringN(), element, "result")), result);
      let value = dart.nullCheck(js_util.getProperty(T$10.SVGNumberListN(), dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedNumberListN(), element, "values")), "baseVal"));
      for (let i = 0; i < dart.notNull(matrix[$length]); i = i + 1) {
        T$10.SVGNumber()[_as](value.appendItem((t$36537 = T$10.SVGNumber()[_as](this.root.createSVGNumber()), (() => {
          _engine['SVGNumberExtension|set#value'](t$36537, matrix[$_get](i));
          return t$36537;
        })())));
      }
      this.filter.append(element);
    }
    setFeFlood(opts) {
      let floodColor = opts && 'floodColor' in opts ? opts.floodColor : null;
      if (floodColor == null) dart.nullFailed(I[281], 226, 21, "floodColor");
      let floodOpacity = opts && 'floodOpacity' in opts ? opts.floodOpacity : null;
      if (floodOpacity == null) dart.nullFailed(I[281], 227, 21, "floodOpacity");
      let result = opts && 'result' in opts ? opts.result : null;
      if (result == null) dart.nullFailed(I[281], 228, 21, "result");
      let element = _engine.createSVGFEFloodElement();
      _engine['DomElementExtension|setAttribute'](element, "flood-color", floodColor);
      _engine['DomElementExtension|setAttribute'](element, "flood-opacity", floodOpacity);
      _engine['SVGAnimatedStringExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedStringN(), element, "result")), result);
      this.filter.append(element);
    }
    setFeBlend(opts) {
      let in1 = opts && 'in1' in opts ? opts.in1 : null;
      if (in1 == null) dart.nullFailed(I[281], 238, 21, "in1");
      let in2 = opts && 'in2' in opts ? opts.in2 : null;
      if (in2 == null) dart.nullFailed(I[281], 239, 21, "in2");
      let mode = opts && 'mode' in opts ? opts.mode : null;
      if (mode == null) dart.nullFailed(I[281], 240, 18, "mode");
      let element = _engine.createSVGFEBlendElement();
      _engine['SVGAnimatedStringExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedStringN(), element, "in1")), in1);
      _engine['SVGAnimatedStringExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedStringN(), element, "in2")), in2);
      _engine['SVGAnimatedEnumerationExtenson|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedEnumerationN(), element, "mode")), mode);
      this.filter.append(element);
    }
    setFeComposite(opts) {
      let in1 = opts && 'in1' in opts ? opts.in1 : null;
      if (in1 == null) dart.nullFailed(I[281], 250, 21, "in1");
      let in2 = opts && 'in2' in opts ? opts.in2 : null;
      if (in2 == null) dart.nullFailed(I[281], 251, 21, "in2");
      let operator = opts && 'operator' in opts ? opts.operator : null;
      if (operator == null) dart.nullFailed(I[281], 252, 18, "operator");
      let k1 = opts && 'k1' in opts ? opts.k1 : null;
      let k2 = opts && 'k2' in opts ? opts.k2 : null;
      let k3 = opts && 'k3' in opts ? opts.k3 : null;
      let k4 = opts && 'k4' in opts ? opts.k4 : null;
      let result = opts && 'result' in opts ? opts.result : null;
      if (result == null) dart.nullFailed(I[281], 257, 21, "result");
      let element = _engine.createSVGFECompositeElement();
      _engine['SVGAnimatedStringExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedStringN(), element, "in1")), in1);
      _engine['SVGAnimatedStringExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedStringN(), element, "in2")), in2);
      _engine['SVGAnimatedEnumerationExtenson|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedEnumerationN(), element, "operator")), operator);
      if (k1 != null) {
        _engine['SVGAnimatedNumberExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedNumberN(), element, "k1")), k1);
      }
      if (k2 != null) {
        _engine['SVGAnimatedNumberExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedNumberN(), element, "k2")), k2);
      }
      if (k3 != null) {
        _engine['SVGAnimatedNumberExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedNumberN(), element, "k3")), k3);
      }
      if (k4 != null) {
        _engine['SVGAnimatedNumberExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedNumberN(), element, "k4")), k4);
      }
      _engine['SVGAnimatedStringExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedStringN(), element, "result")), result);
      this.filter.append(element);
    }
    setFeImage(opts) {
      let href = opts && 'href' in opts ? opts.href : null;
      if (href == null) dart.nullFailed(I[281], 280, 21, "href");
      let result = opts && 'result' in opts ? opts.result : null;
      if (result == null) dart.nullFailed(I[281], 281, 21, "result");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[281], 282, 21, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[281], 283, 21, "height");
      let element = _engine.createSVGFEImageElement();
      _engine['SVGAnimatedStringExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedStringN(), element, "href")), href);
      _engine['SVGAnimatedStringExtension|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedStringN(), element, "result")), result);
      if (ui_web.browser.browserEngine != ui_web.BrowserEngine.webkit) {
        _engine['SVGLengthExtension|newValueSpecifiedUnits'](dart.nullCheck(js_util.getProperty(T$10.SVGLengthN(), dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedLengthN(), element, "x")), "baseVal")), 1, 0);
        _engine['SVGLengthExtension|newValueSpecifiedUnits'](dart.nullCheck(js_util.getProperty(T$10.SVGLengthN(), dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedLengthN(), element, "y")), "baseVal")), 1, 0);
        _engine['SVGLengthExtension|newValueSpecifiedUnits'](dart.nullCheck(js_util.getProperty(T$10.SVGLengthN(), dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedLengthN(), element, "width")), "baseVal")), 1, width);
        _engine['SVGLengthExtension|newValueSpecifiedUnits'](dart.nullCheck(js_util.getProperty(T$10.SVGLengthN(), dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedLengthN(), element, "height")), "baseVal")), 1, height);
      }
      this.filter.append(element);
    }
    build() {
      this.root.append(this.filter);
      return new _engine.SvgFilter.__(this.id, this.root);
    }
  };
  (_engine.SvgFilterBuilder.new = function() {
    this[root] = T$10.SVGSVGElement()[_as](_engine['DomNodeExtension|cloneNode'](_engine.kSvgResourceHeader, false));
    this[filter] = _engine.createSVGFilterElement();
    this[id] = "_fcf" + dart.strSafe(_engine.SvgFilterBuilder._filterIdCounter = dart.notNull(_engine.SvgFilterBuilder._filterIdCounter) + 1);
    _engine['DomElementExtension|set#id'](this.filter, this.id);
    _engine['SVGAnimatedEnumerationExtenson|set#baseVal'](dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedEnumerationN(), this.filter, "filterUnits")), 2);
    _engine['SVGLengthExtension|set#valueAsString'](dart.nullCheck(js_util.getProperty(T$10.SVGLengthN(), dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedLengthN(), this.filter, "x")), "baseVal")), "0%");
    _engine['SVGLengthExtension|set#valueAsString'](dart.nullCheck(js_util.getProperty(T$10.SVGLengthN(), dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedLengthN(), this.filter, "y")), "baseVal")), "0%");
    _engine['SVGLengthExtension|set#valueAsString'](dart.nullCheck(js_util.getProperty(T$10.SVGLengthN(), dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedLengthN(), this.filter, "width")), "baseVal")), "100%");
    _engine['SVGLengthExtension|set#valueAsString'](dart.nullCheck(js_util.getProperty(T$10.SVGLengthN(), dart.nullCheck(js_util.getProperty(T$10.SVGAnimatedLengthN(), this.filter, "height")), "baseVal")), "100%");
  }).prototype = _engine.SvgFilterBuilder.prototype;
  dart.addRtiResources(_engine.SvgFilterBuilder, ["_engine|SvgFilterBuilder"]);
  dart.setMethodSignature(_engine.SvgFilterBuilder, () => dart.global.Object.setPrototypeOf({
    setFeColorMatrix: T$10.ListOfdouble__Tovoid(),
    setFeFlood: T$10.__Tovoid$11(),
    setFeBlend: T$10.__Tovoid$12(),
    setFeComposite: T$10.__Tovoid$13(),
    setFeImage: T$10.__Tovoid$14(),
    build: T$10.VoidToSvgFilter()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SvgFilterBuilder))));
  dart.setSetterSignature(_engine.SvgFilterBuilder, () => dart.global.Object.setPrototypeOf({colorInterpolationFilters: T$.String()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.SvgFilterBuilder))));
  dart.setLibraryUri(_engine.SvgFilterBuilder, I[220]);
  dart.setFieldSignature(_engine.SvgFilterBuilder, () => dart.global.Object.setPrototypeOf({
    id: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    root: {type: T$10.SVGSVGElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    filter: {type: T$10.SVGFilterElement(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SvgFilterBuilder))));
  dart.setStaticFieldSignature(_engine.SvgFilterBuilder, () => ['_filterIdCounter']);
  dart.defineLazy(_engine.SvgFilterBuilder, {
    /*_engine.SvgFilterBuilder._filterIdCounter*/get _filterIdCounter() {
      return 0;
    },
    set _filterIdCounter(value) {
      if (value == null) dart.nullFailed(I[281], 203, 14, "_filterIdCounter");
    }
  }, false);
  var id$2 = dart.privateName(_engine, "SvgFilter.id");
  var element$1 = dart.privateName(_engine, "SvgFilter.element");
  _engine.SvgFilter = class SvgFilter extends core.Object {
    get id() {
      return this[id$2];
    }
    set id(value) {
      super.id = value;
    }
    get element() {
      return this[element$1];
    }
    set element(value) {
      super.element = value;
    }
    static ['_#_#tearOff'](id, element) {
      if (id == null) dart.nullFailed(I[281], 307, 20, "id");
      if (element == null) dart.nullFailed(I[281], 307, 29, "element");
      return new _engine.SvgFilter.__(id, element);
    }
  };
  (_engine.SvgFilter.__ = function(id, element) {
    if (id == null) dart.nullFailed(I[281], 307, 20, "id");
    if (element == null) dart.nullFailed(I[281], 307, 29, "element");
    this[id$2] = id;
    this[element$1] = element;
    ;
  }).prototype = _engine.SvgFilter.prototype;
  dart.addRtiResources(_engine.SvgFilter, ["_engine|SvgFilter"]);
  dart.setLibraryUri(_engine.SvgFilter, I[220]);
  dart.setFieldSignature(_engine.SvgFilter, () => dart.global.Object.setPrototypeOf({
    id: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    element: {type: T$10.SVGSVGElement(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SvgFilter))));
  var _created = dart.privateName(_engine, "_created");
  var _kept = dart.privateName(_engine, "_kept");
  var _reused = dart.privateName(_engine, "_reused");
  var _inRecycle = dart.privateName(_engine, "_inRecycle");
  var _createdCount = dart.privateName(_engine, "_createdCount");
  var _keptCount = dart.privateName(_engine, "_keptCount");
  var _reusedCount = dart.privateName(_engine, "_reusedCount");
  var _disposedCount = dart.privateName(_engine, "_disposedCount");
  var _inRecycleCount = dart.privateName(_engine, "_inRecycleCount");
  var _reset = dart.privateName(_engine, "_reset");
  var _update = dart.privateName(_engine, "_update");
  _engine.DebugCanvasReuseOverlay = class DebugCanvasReuseOverlay extends core.Object {
    static ['_#_#tearOff']() {
      return new _engine.DebugCanvasReuseOverlay.__();
    }
    static get instance() {
      if (_engine.DebugCanvasReuseOverlay._instance == null) {
        if (!dart.test(dart.fn(() => {
          _engine.DebugCanvasReuseOverlay._instance = new _engine.DebugCanvasReuseOverlay.__();
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[282], 79, 14, "() {\n        _instance = DebugCanvasReuseOverlay._();\n        return true;\n      }()");
      }
      return dart.nullCheck(_engine.DebugCanvasReuseOverlay._instance);
    }
    get createdCount() {
      return this[_createdCount];
    }
    set createdCount(createdCount) {
      if (createdCount == null) dart.nullFailed(I[282], 95, 24, "createdCount");
      this[_createdCount] = createdCount;
      this[_update]();
    }
    get keptCount() {
      return this[_keptCount];
    }
    set keptCount(keptCount) {
      if (keptCount == null) dart.nullFailed(I[282], 102, 21, "keptCount");
      this[_keptCount] = keptCount;
      this[_update]();
    }
    get reusedCount() {
      return this[_reusedCount];
    }
    set reusedCount(reusedCount) {
      if (reusedCount == null) dart.nullFailed(I[282], 109, 23, "reusedCount");
      this[_reusedCount] = reusedCount;
      this[_update]();
    }
    get disposedCount() {
      return this[_disposedCount];
    }
    set disposedCount(disposedCount) {
      if (disposedCount == null) dart.nullFailed(I[282], 116, 25, "disposedCount");
      this[_disposedCount] = disposedCount;
      this[_update]();
    }
    get inRecycleCount() {
      return this[_inRecycleCount];
    }
    set inRecycleCount(inRecycleCount) {
      if (inRecycleCount == null) dart.nullFailed(I[282], 123, 26, "inRecycleCount");
      this[_inRecycleCount] = inRecycleCount;
      this[_update]();
    }
    [_update]() {
      _engine['DomNodeExtension|set#text'](this[_created], dart.str(this[_createdCount]));
      _engine['DomNodeExtension|set#text'](this[_kept], dart.str(this[_keptCount]));
      _engine['DomNodeExtension|set#text'](this[_reused], dart.str(this[_reusedCount]));
      _engine['DomNodeExtension|set#text'](this[_disposed], dart.str(this[_disposedCount]));
      _engine['DomNodeExtension|set#text'](this[_inRecycle], dart.str(this[_inRecycleCount]));
    }
    [_reset]() {
      this[_createdCount] = this[_keptCount] = this[_reusedCount] = this[_disposedCount] = this[_inRecycleCount] = 0;
      this[_update]();
    }
  };
  (_engine.DebugCanvasReuseOverlay.__ = function() {
    let t$36537, t$36538, t$36538$, t$36538$0, t$36538$1, t$36538$2, t$36539, t$36538$3, t$36537$;
    this[_created] = _engine.createDomText("0");
    this[_kept] = _engine.createDomText("0");
    this[_reused] = _engine.createDomText("0");
    this[_disposed] = _engine.createDomText("0");
    this[_inRecycle] = _engine.createDomText("0");
    this[_createdCount] = 0;
    this[_keptCount] = 0;
    this[_reusedCount] = 0;
    this[_disposedCount] = 0;
    this[_inRecycleCount] = 0;
    let container = _engine._createContainer();
    let title = _engine.createDomHTMLDivElement();
    t$36537 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), title, "style");
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#fontWeight'](t$36537, "bold");
      _engine['DomCSSStyleDeclarationExtension|set#textDecoration'](t$36537, "underline");
      return t$36537;
    })();
    _engine['DomNodeExtension|set#text'](title, "Canvas Reuse");
    dart.nullCheck(js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body")).append((t$36537$ = container, (() => {
      t$36537$.append(title);
      t$36537$.append((t$36538 = _engine.createDomHTMLDivElement(), (() => {
        _engine['DomElementExtension|appendText'](t$36538, "Created: ");
        t$36538.append(this[_created]);
        return t$36538;
      })()));
      t$36537$.append((t$36538$ = _engine.createDomHTMLDivElement(), (() => {
        _engine['DomElementExtension|appendText'](t$36538$, "Kept: ");
        t$36538$.append(this[_kept]);
        return t$36538$;
      })()));
      t$36537$.append((t$36538$0 = _engine.createDomHTMLDivElement(), (() => {
        _engine['DomElementExtension|appendText'](t$36538$0, "Reused: ");
        t$36538$0.append(this[_reused]);
        return t$36538$0;
      })()));
      t$36537$.append((t$36538$1 = _engine.createDomHTMLDivElement(), (() => {
        _engine['DomElementExtension|appendText'](t$36538$1, "Disposed: ");
        t$36538$1.append(this[_disposed]);
        return t$36538$1;
      })()));
      t$36537$.append((t$36538$2 = _engine.createDomHTMLDivElement(), (() => {
        _engine['DomElementExtension|appendText'](t$36538$2, "In Recycle List: ");
        t$36538$2.append(this[_inRecycle]);
        return t$36538$2;
      })()));
      t$36537$.append((t$36538$3 = _engine.createDomHTMLDivElement(), (() => {
        t$36538$3.append((t$36539 = _engine.createDomHTMLButtonElement(), (() => {
          _engine['DomNodeExtension|set#text'](t$36539, "Reset");
          _engine['DomEventTargetExtension|addEventListener'](t$36539, "click", _engine.createDomEventListener(dart.fn(_ => {
            if (_ == null) dart.nullFailed(I[282], 68, 45, "_");
            return this[_reset]();
          }, T$10.DomEventTovoid())));
          return t$36539;
        })()));
        return t$36538$3;
      })()));
      return t$36537$;
    })()));
  }).prototype = _engine.DebugCanvasReuseOverlay.prototype;
  dart.addRtiResources(_engine.DebugCanvasReuseOverlay, ["_engine|DebugCanvasReuseOverlay"]);
  dart.setMethodSignature(_engine.DebugCanvasReuseOverlay, () => dart.global.Object.setPrototypeOf({
    [_update]: T$.VoidTovoid(),
    [_reset]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DebugCanvasReuseOverlay))));
  dart.setGetterSignature(_engine.DebugCanvasReuseOverlay, () => dart.global.Object.setPrototypeOf({
    createdCount: T$.int(),
    keptCount: T$.int(),
    reusedCount: T$.int(),
    disposedCount: T$.int(),
    inRecycleCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.DebugCanvasReuseOverlay))));
  dart.setSetterSignature(_engine.DebugCanvasReuseOverlay, () => dart.global.Object.setPrototypeOf({
    createdCount: T$.int(),
    keptCount: T$.int(),
    reusedCount: T$.int(),
    disposedCount: T$.int(),
    inRecycleCount: T$.int()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.DebugCanvasReuseOverlay))));
  dart.setStaticGetterSignature(_engine.DebugCanvasReuseOverlay, () => ['instance']);
  dart.setLibraryUri(_engine.DebugCanvasReuseOverlay, I[220]);
  dart.setFieldSignature(_engine.DebugCanvasReuseOverlay, () => dart.global.Object.setPrototypeOf({
    [_created]: {type: T$10.DomText(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_kept]: {type: T$10.DomText(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_reused]: {type: T$10.DomText(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_disposed]: {type: T$10.DomText(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_inRecycle]: {type: T$10.DomText(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_createdCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_keptCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_reusedCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_disposedCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_inRecycleCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DebugCanvasReuseOverlay))));
  dart.setStaticFieldSignature(_engine.DebugCanvasReuseOverlay, () => ['_instance']);
  dart.defineLazy(_engine.DebugCanvasReuseOverlay, {
    /*_engine.DebugCanvasReuseOverlay._instance*/get _instance() {
      return null;
    },
    set _instance(value) {}
  }, false);
  var rootElement$0 = dart.privateName(_engine, "DomCanvas.rootElement");
  const EngineCanvas_SaveElementStackTracking$36 = class EngineCanvas_SaveElementStackTracking extends _engine.EngineCanvas {};
  (EngineCanvas_SaveElementStackTracking$36.new = function() {
    _engine.SaveElementStackTracking[dart.mixinNew].call(this);
  }).prototype = EngineCanvas_SaveElementStackTracking$36.prototype;
  dart.applyMixin(EngineCanvas_SaveElementStackTracking$36, _engine.SaveElementStackTracking);
  _engine.DomCanvas = class DomCanvas extends EngineCanvas_SaveElementStackTracking$36 {
    get rootElement() {
      return this[rootElement$0];
    }
    set rootElement(value) {
      super.rootElement = value;
    }
    static ['_#new#tearOff'](rootElement) {
      if (rootElement == null) dart.nullFailed(I[283], 11, 18, "rootElement");
      return new _engine.DomCanvas.new(rootElement);
    }
    clear() {
      super.clear();
      _engine.removeAllChildren(this.rootElement);
    }
    clipRect(rect, clipOp) {
      if (rect == null) dart.nullFailed(I[283], 24, 25, "rect");
      if (clipOp == null) dart.nullFailed(I[283], 24, 41, "clipOp");
      dart.throw(new core.UnimplementedError.new());
    }
    clipRRect(rrect) {
      if (rrect == null) dart.nullFailed(I[283], 29, 27, "rrect");
      dart.throw(new core.UnimplementedError.new());
    }
    clipPath(path) {
      if (path == null) dart.nullFailed(I[283], 34, 25, "path");
      dart.throw(new core.UnimplementedError.new());
    }
    drawColor(color, blendMode) {
      let t$36537;
      if (color == null) dart.nullFailed(I[283], 39, 27, "color");
      if (blendMode == null) dart.nullFailed(I[283], 39, 47, "blendMode");
      let box = _engine.createDomElement("draw-color");
      t$36537 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), box, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36537, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36537, "0");
        _engine['DomCSSStyleDeclarationExtension|set#right'](t$36537, "0");
        _engine['DomCSSStyleDeclarationExtension|set#bottom'](t$36537, "0");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36537, "0");
        _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$36537, _engine['CssColor|toCssString'](color));
        return t$36537;
      })();
      this.currentElement.append(box);
    }
    drawLine(p1, p2, paint) {
      if (p1 == null) dart.nullFailed(I[283], 53, 27, "p1");
      if (p2 == null) dart.nullFailed(I[283], 53, 41, "p2");
      if (paint == null) dart.nullFailed(I[283], 53, 62, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    drawPaint(paint) {
      if (paint == null) dart.nullFailed(I[283], 58, 35, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    drawRect(rect, paint) {
      if (rect == null) dart.nullFailed(I[283], 63, 25, "rect");
      if (paint == null) dart.nullFailed(I[283], 63, 48, "paint");
      rect = _engine.adjustRectForDom(rect, paint);
      this.currentElement.append(_engine.buildDrawRectElement(rect, paint, "draw-rect", this.currentTransform));
    }
    drawRRect(rrect, paint) {
      if (rrect == null) dart.nullFailed(I[283], 70, 27, "rrect");
      if (paint == null) dart.nullFailed(I[283], 70, 51, "paint");
      let outerRect = _engine.adjustRectForDom(rrect.outerRect, paint);
      let element = _engine.buildDrawRectElement(outerRect, paint, "draw-rrect", this.currentTransform);
      _engine.applyRRectBorderRadius(js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), rrect);
      this.currentElement.append(element);
    }
    drawDRRect(outer, inner, paint) {
      if (outer == null) dart.nullFailed(I[283], 79, 28, "outer");
      if (inner == null) dart.nullFailed(I[283], 79, 44, "inner");
      if (paint == null) dart.nullFailed(I[283], 79, 68, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    drawOval(rect, paint) {
      if (rect == null) dart.nullFailed(I[283], 84, 25, "rect");
      if (paint == null) dart.nullFailed(I[283], 84, 48, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    drawCircle(c, radius, paint) {
      if (c == null) dart.nullFailed(I[283], 89, 29, "c");
      if (radius == null) dart.nullFailed(I[283], 89, 39, "radius");
      if (paint == null) dart.nullFailed(I[283], 89, 64, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    drawPath(path, paint) {
      if (path == null) dart.nullFailed(I[283], 94, 25, "path");
      if (paint == null) dart.nullFailed(I[283], 94, 48, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    drawShadow(path, color, elevation, transparentOccluder) {
      if (path == null) dart.nullFailed(I[283], 99, 27, "path");
      if (color == null) dart.nullFailed(I[283], 99, 42, "color");
      if (elevation == null) dart.nullFailed(I[283], 99, 56, "elevation");
      if (transparentOccluder == null) dart.nullFailed(I[283], 100, 12, "transparentOccluder");
      dart.throw(new core.UnimplementedError.new());
    }
    drawImage(image, p, paint) {
      if (image == null) dart.nullFailed(I[283], 105, 27, "image");
      if (p == null) dart.nullFailed(I[283], 105, 44, "p");
      if (paint == null) dart.nullFailed(I[283], 105, 64, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    drawImageRect(image, src, dst, paint) {
      if (image == null) dart.nullFailed(I[283], 111, 16, "image");
      if (src == null) dart.nullFailed(I[283], 111, 31, "src");
      if (dst == null) dart.nullFailed(I[283], 111, 44, "dst");
      if (paint == null) dart.nullFailed(I[283], 111, 66, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    drawParagraph(paragraph, offset) {
      if (paragraph == null) dart.nullFailed(I[283], 116, 35, "paragraph");
      if (offset == null) dart.nullFailed(I[283], 116, 56, "offset");
      let paragraphElement = _engine.drawParagraphElement(T$10.CanvasParagraph()[_as](paragraph), offset, {transform: this.currentTransform});
      this.currentElement.append(paragraphElement);
    }
    drawVertices(vertices, blendMode, paint) {
      if (vertices == null) dart.nullFailed(I[283], 125, 19, "vertices");
      if (blendMode == null) dart.nullFailed(I[283], 125, 42, "blendMode");
      if (paint == null) dart.nullFailed(I[283], 125, 70, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    drawPoints(pointMode, points, paint) {
      if (pointMode == null) dart.nullFailed(I[283], 131, 20, "pointMode");
      if (points == null) dart.nullFailed(I[283], 131, 43, "points");
      if (paint == null) dart.nullFailed(I[283], 131, 68, "paint");
      dart.throw(new core.UnimplementedError.new());
    }
    endOfPaint() {
    }
  };
  (_engine.DomCanvas.new = function(rootElement) {
    if (rootElement == null) dart.nullFailed(I[283], 11, 18, "rootElement");
    this[rootElement$0] = rootElement;
    dart.global.Object.getPrototypeOf(_engine.DomCanvas).new.call(this);
    ;
  }).prototype = _engine.DomCanvas.prototype;
  dart.addRtiResources(_engine.DomCanvas, ["_engine|DomCanvas"]);
  dart.setMethodSignature(_engine.DomCanvas, () => dart.global.Object.setPrototypeOf({
    clipRect: T$10.RectAndClipOpTovoid(),
    clipRRect: T$9.RRectTovoid(),
    clipPath: T$9.PathTovoid(),
    drawColor: T$9.ColorAndBlendModeTovoid(),
    drawLine: T$10.OffsetAndOffsetAndSurfacePaintDataTovoid(),
    drawPaint: T$10.SurfacePaintDataTovoid(),
    drawRect: T$10.RectAndSurfacePaintDataTovoid(),
    drawRRect: T$10.RRectAndSurfacePaintDataTovoid(),
    drawDRRect: T$10.RRectAndRRectAndSurfacePaintDataTovoid(),
    drawOval: T$10.RectAndSurfacePaintDataTovoid(),
    drawCircle: T$10.OffsetAnddoubleAndSurfacePaintDataTovoid(),
    drawPath: T$10.PathAndSurfacePaintDataTovoid(),
    drawShadow: T$9.PathAndColorAnddouble__Tovoid(),
    drawImage: T$10.ImageAndOffsetAndSurfacePaintDataTovoid(),
    drawImageRect: T$10.ImageAndRectAndRect__Tovoid$1(),
    drawParagraph: T$9.ParagraphAndOffsetTovoid(),
    drawVertices: T$10.VerticesAndBlendModeAndSurfacePaintDataTovoid(),
    drawPoints: T$10.PointModeAndFloat32ListAndSurfacePaintDataTovoid(),
    endOfPaint: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DomCanvas))));
  dart.setLibraryUri(_engine.DomCanvas, I[220]);
  dart.setFieldSignature(_engine.DomCanvas, () => dart.global.Object.setPrototypeOf({rootElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DomCanvas))));
  var src$0 = dart.privateName(_engine, "HtmlImageElementCodec.src");
  var chunkCallback$ = dart.privateName(_engine, "HtmlImageElementCodec.chunkCallback");
  var _decodeUsingOnLoad = dart.privateName(_engine, "_decodeUsingOnLoad");
  _engine.HtmlImageElementCodec = class HtmlImageElementCodec extends core.Object {
    get src() {
      return this[src$0];
    }
    set src(value) {
      super.src = value;
    }
    get chunkCallback() {
      return this[chunkCallback$];
    }
    set chunkCallback(value) {
      super.chunkCallback = value;
    }
    get frameCount() {
      return 1;
    }
    get repetitionCount() {
      return 0;
    }
    getNextFrame() {
      return async.async(T$9.FrameInfo(), (function* getNextFrame() {
        let t$36537;
        let completer = G$.CompleterOfFrameInfo().new();
        t$36537 = this.chunkCallback;
        t$36537 == null ? null : t$36537(0, 100);
        if (dart.test(_engine._supportsDecode)) {
          let imgElement = _engine.createDomHTMLImageElement();
          _engine['DomHTMLImageElementExtension|set#src'](imgElement, this.src);
          _engine.setJsProperty(T$.String(), imgElement, "decoding", "async");
          _engine['DomHTMLImageElementExtension|decode'](imgElement).then(T$.Null(), dart.fn(_ => {
            let t$36537;
            t$36537 = this.chunkCallback;
            t$36537 == null ? null : t$36537(100, 100);
            let naturalWidth = _engine['DomHTMLImageElementExtension|get#naturalWidth'](imgElement)[$toInt]();
            let naturalHeight = _engine['DomHTMLImageElementExtension|get#naturalHeight'](imgElement)[$toInt]();
            if (naturalWidth === 0 && naturalHeight === 0 && ui_web.browser.browserEngine == ui_web.BrowserEngine.firefox) {
              naturalWidth = 300;
              naturalHeight = 300;
            }
            let image = this.createImageFromHTMLImageElement(imgElement, naturalWidth, naturalHeight);
            completer.complete(new _engine.SingleFrameInfo.new(image));
          }, T$0.dynamicToNull())).catchError(dart.fn(e => {
            this[_decodeUsingOnLoad](completer);
          }, T$0.dynamicToNull()));
        } else {
          this[_decodeUsingOnLoad](completer);
        }
        return completer.future;
      }).bind(this));
    }
    [_decodeUsingOnLoad](completer) {
      if (completer == null) dart.nullFailed(I[285], 79, 51, "completer");
      let imgElement = _engine.createDomHTMLImageElement();
      let errorListener = null;
      let t$36$35errorListener$35isSet = false;
      function t$36$35errorListener$35get() {
        return t$36$35errorListener$35isSet ? errorListener : dart.throw(new _internal.LateError.localNI("errorListener"));
      }
      function t$36$35errorListener$35set(errorListener$35param) {
        if (errorListener$35param == null) dart.nullFailed(I[285], 85, 27, "errorListener#param");
        t$36$35errorListener$35isSet = true;
        return errorListener = errorListener$35param;
      }
      let loadListener = null;
      t$36$35errorListener$35set(_engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[285], 87, 54, "event");
        if (loadListener != null) {
          _engine['DomEventTargetExtension|removeEventListener'](imgElement, "load", loadListener);
        }
        _engine['DomEventTargetExtension|removeEventListener'](imgElement, "error", t$36$35errorListener$35get());
        completer.completeError(event);
      }, T$10.DomEventTovoid())));
      _engine['DomEventTargetExtension|addEventListener'](imgElement, "error", t$36$35errorListener$35get());
      loadListener = _engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[285], 95, 53, "event");
        if (this.chunkCallback != null) {
          dart.nullCheck(this.chunkCallback)(100, 100);
        }
        _engine['DomEventTargetExtension|removeEventListener'](imgElement, "load", loadListener);
        _engine['DomEventTargetExtension|removeEventListener'](imgElement, "error", t$36$35errorListener$35get());
        let image = this.createImageFromHTMLImageElement(imgElement, _engine['DomHTMLImageElementExtension|get#naturalWidth'](imgElement)[$toInt](), _engine['DomHTMLImageElementExtension|get#naturalHeight'](imgElement)[$toInt]());
        completer.complete(new _engine.SingleFrameInfo.new(image));
      }, T$10.DomEventTovoid()));
      _engine['DomEventTargetExtension|addEventListener'](imgElement, "load", loadListener);
      _engine['DomHTMLImageElementExtension|set#src'](imgElement, this.src);
    }
    dispose() {
    }
  };
  (_engine.HtmlImageElementCodec.new = function(src, opts) {
    if (src == null) dart.nullFailed(I[285], 23, 30, "src");
    let chunkCallback = opts && 'chunkCallback' in opts ? opts.chunkCallback : null;
    this[src$0] = src;
    this[chunkCallback$] = chunkCallback;
    ;
  }).prototype = _engine.HtmlImageElementCodec.prototype;
  dart.addRtiResources(_engine.HtmlImageElementCodec, ["_engine|HtmlImageElementCodec", "ui|Codec"]);
  dart.setMethodSignature(_engine.HtmlImageElementCodec, () => dart.global.Object.setPrototypeOf({
    getNextFrame: T$9.VoidToFutureOfFrameInfo(),
    [_decodeUsingOnLoad]: T$10.CompleterOfFrameInfoTovoid(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HtmlImageElementCodec))));
  dart.setGetterSignature(_engine.HtmlImageElementCodec, () => dart.global.Object.setPrototypeOf({
    frameCount: T$.int(),
    repetitionCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.HtmlImageElementCodec))));
  dart.setLibraryUri(_engine.HtmlImageElementCodec, I[220]);
  dart.setFieldSignature(_engine.HtmlImageElementCodec, () => dart.global.Object.setPrototypeOf({
    src: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    chunkCallback: {type: T$10.intAndintToNvoid(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HtmlImageElementCodec))));
  _engine.HtmlRendererImageCodec = class HtmlRendererImageCodec extends _engine.HtmlImageElementCodec {
    static ['_#new#tearOff'](src, opts) {
      if (src == null) dart.nullFailed(I[284], 9, 32, "src");
      let chunkCallback = opts && 'chunkCallback' in opts ? opts.chunkCallback : null;
      return new _engine.HtmlRendererImageCodec.new(src, {chunkCallback: chunkCallback});
    }
    createImageFromHTMLImageElement(image, naturalWidth, naturalHeight) {
      if (image == null) dart.nullFailed(I[284], 13, 25, "image");
      if (naturalWidth == null) dart.nullFailed(I[284], 14, 9, "naturalWidth");
      if (naturalHeight == null) dart.nullFailed(I[284], 15, 9, "naturalHeight");
      return new _engine.HtmlImage.new(image, naturalWidth, naturalHeight);
    }
    [_getNextFrame](callback) {
      if (callback == null) dart.nullFailed(I[284], 8, 7, "callback");
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.method(C[834] || CT.C834, null, [callback], null)));
    }
  };
  (_engine.HtmlRendererImageCodec.new = function(src, opts) {
    if (src == null) dart.nullFailed(I[284], 9, 32, "src");
    let chunkCallback = opts && 'chunkCallback' in opts ? opts.chunkCallback : null;
    dart.global.Object.getPrototypeOf(_engine.HtmlRendererImageCodec).new.call(this, src, {chunkCallback: chunkCallback});
    ;
  }).prototype = _engine.HtmlRendererImageCodec.prototype;
  dart.addRtiResources(_engine.HtmlRendererImageCodec, ["_engine|HtmlRendererImageCodec"]);
  dart.setMethodSignature(_engine.HtmlRendererImageCodec, () => dart.global.Object.setPrototypeOf({
    createImageFromHTMLImageElement: T$10.DomHTMLImageElementAndintAndintToImage(),
    [_getNextFrame]: T$9.FnToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HtmlRendererImageCodec))));
  dart.setLibraryUri(_engine.HtmlRendererImageCodec, I[220]);
  var blob$ = dart.privateName(_engine, "HtmlBlobCodec.blob");
  _engine.HtmlBlobCodec = class HtmlBlobCodec extends _engine.HtmlImageElementCodec {
    get blob() {
      return this[blob$];
    }
    set blob(value) {
      super.blob = value;
    }
    dispose() {
      _engine['DomURLExtension|revokeObjectURL'](js_util.getProperty(T$10.DomURL(), dart.jsInteropNullCheck(dart.global.window), "URL"), this.src);
    }
  };
  (_engine.HtmlBlobCodec.new = function(blob) {
    if (blob == null) dart.nullFailed(I[285], 124, 22, "blob");
    this[blob$] = blob;
    dart.global.Object.getPrototypeOf(_engine.HtmlBlobCodec).new.call(this, _engine['DomURLExtension|createObjectURL'](js_util.getProperty(T$10.DomURL(), dart.jsInteropNullCheck(dart.global.window), "URL"), blob));
    ;
  }).prototype = _engine.HtmlBlobCodec.prototype;
  dart.addRtiResources(_engine.HtmlBlobCodec, ["_engine|HtmlBlobCodec"]);
  dart.setLibraryUri(_engine.HtmlBlobCodec, I[220]);
  dart.setFieldSignature(_engine.HtmlBlobCodec, () => dart.global.Object.setPrototypeOf({blob: {type: T$10.DomBlob(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HtmlBlobCodec))));
  _engine.HtmlRendererBlobCodec = class HtmlRendererBlobCodec extends _engine.HtmlBlobCodec {
    static ['_#new#tearOff'](blob) {
      if (blob == null) dart.nullFailed(I[284], 22, 31, "blob");
      return new _engine.HtmlRendererBlobCodec.new(blob);
    }
    createImageFromHTMLImageElement(image, naturalWidth, naturalHeight) {
      if (image == null) dart.nullFailed(I[284], 26, 25, "image");
      if (naturalWidth == null) dart.nullFailed(I[284], 27, 9, "naturalWidth");
      if (naturalHeight == null) dart.nullFailed(I[284], 28, 9, "naturalHeight");
      return new _engine.HtmlImage.new(image, naturalWidth, naturalHeight);
    }
    [_getNextFrame](callback) {
      if (callback == null) dart.nullFailed(I[284], 21, 7, "callback");
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.method(C[834] || CT.C834, null, [callback], null)));
    }
  };
  (_engine.HtmlRendererBlobCodec.new = function(blob) {
    if (blob == null) dart.nullFailed(I[284], 22, 31, "blob");
    dart.global.Object.getPrototypeOf(_engine.HtmlRendererBlobCodec).new.call(this, blob);
    ;
  }).prototype = _engine.HtmlRendererBlobCodec.prototype;
  dart.addRtiResources(_engine.HtmlRendererBlobCodec, ["_engine|HtmlRendererBlobCodec"]);
  dart.setMethodSignature(_engine.HtmlRendererBlobCodec, () => dart.global.Object.setPrototypeOf({
    createImageFromHTMLImageElement: T$10.DomHTMLImageElementAndintAndintToImage(),
    [_getNextFrame]: T$9.FnToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HtmlRendererBlobCodec))));
  dart.setLibraryUri(_engine.HtmlRendererBlobCodec, I[220]);
  var imgElement$ = dart.privateName(_engine, "HtmlImage.imgElement");
  var width$3 = dart.privateName(_engine, "HtmlImage.width");
  var height$3 = dart.privateName(_engine, "HtmlImage.height");
  var _didClone = dart.privateName(_engine, "_didClone");
  _engine.HtmlImage = class HtmlImage extends core.Object {
    get imgElement() {
      return this[imgElement$];
    }
    set imgElement(value) {
      super.imgElement = value;
    }
    get width() {
      return this[width$3];
    }
    set width(value) {
      super.width = value;
    }
    get height() {
      return this[height$3];
    }
    set height(value) {
      super.height = value;
    }
    static ['_#new#tearOff'](imgElement, width, height) {
      if (imgElement == null) dart.nullFailed(I[284], 35, 18, "imgElement");
      if (width == null) dart.nullFailed(I[284], 35, 35, "width");
      if (height == null) dart.nullFailed(I[284], 35, 47, "height");
      return new _engine.HtmlImage.new(imgElement, width, height);
    }
    dispose() {
      let t$36540;
      t$36540 = ui.Image.onDispose;
      t$36540 == null ? null : t$36540(this);
      if (!dart.test(dart.fn(() => {
        this[_disposed] = true;
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[284], 48, 12, "() {\n      _disposed = true;\n      return true;\n    }()");
    }
    get debugDisposed() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_disposed];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[284], 57, 12, "() {\n      result = _disposed;\n      return true;\n    }()");
      if (result != null) {
        return dart.nullCheck(result);
      }
      dart.throw(new core.StateError.new("Image.debugDisposed is only available when asserts are enabled."));
    }
    clone() {
      return this;
    }
    isCloneOf(other) {
      if (other == null) dart.nullFailed(I[284], 74, 27, "other");
      return dart.equals(other, this);
    }
    debugGetOpenHandleStackTraces() {
      return null;
    }
    toByteData(opts) {
      let t$36540, t$36540$, t$36540$0;
      let format = opts && 'format' in opts ? opts.format : C[601] || CT.C601;
      if (format == null) dart.nullFailed(I[284], 87, 27, "format");
      switch (format) {
        case C[601] || CT.C601:
        case C[602] || CT.C602:
          {
            let canvas = (t$36540 = _engine.createDomCanvasElement(), (() => {
              _engine['DomCanvasElementExtension|set#width'](t$36540, this.width[$toDouble]());
              _engine['DomCanvasElementExtension|set#height'](t$36540, this.height[$toDouble]());
              return t$36540;
            })());
            let ctx = _engine['DomCanvasElementExtension|get#context2D'](canvas);
            _engine['DomCanvasRenderingContext2DExtension|drawImage'](ctx, this.imgElement, 0, 0);
            let imageData = _engine['DomCanvasRenderingContext2DExtension|getImageData'](ctx, 0, 0, this.width, this.height);
            return G$.FutureOfByteDataN().value(_engine['DomImageDataExtension|get#data'](imageData)[$buffer][$asByteData]());
          }
        default:
          {
            if (dart.test((t$36540$0 = (t$36540$ = _engine['DomHTMLImageElementExtension|get#src'](this.imgElement), t$36540$ == null ? null : t$36540$[$startsWith]("data:")), t$36540$0 == null ? false : t$36540$0))) {
              let data = core.UriData.fromUri(core.Uri.parse(dart.nullCheck(_engine['DomHTMLImageElementExtension|get#src'](this.imgElement))));
              return G$.FutureOfByteDataN().value(data.contentAsBytes()[$buffer][$asByteData]());
            } else {
              return G$.FutureOfByteDataN().value();
            }
          }
      }
    }
    get colorSpace() {
      return ui.ColorSpace.sRGB;
    }
    cloneImageElement() {
      if (!dart.test(this[_didClone])) {
        this[_didClone] = true;
        _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.imgElement, "style"), "absolute");
      }
      return T$10.DomHTMLImageElement()[_as](_engine['DomNodeExtension|cloneNode'](this.imgElement, true));
    }
    toString() {
      return "[" + dart.str(this.width) + "×" + dart.str(this.height) + "]";
    }
  };
  (_engine.HtmlImage.new = function(imgElement, width, height) {
    let t$36540;
    if (imgElement == null) dart.nullFailed(I[284], 35, 18, "imgElement");
    if (width == null) dart.nullFailed(I[284], 35, 35, "width");
    if (height == null) dart.nullFailed(I[284], 35, 47, "height");
    this[_didClone] = false;
    this[_disposed] = false;
    this[imgElement$] = imgElement;
    this[width$3] = width;
    this[height$3] = height;
    t$36540 = ui.Image.onCreate;
    t$36540 == null ? null : t$36540(this);
  }).prototype = _engine.HtmlImage.prototype;
  dart.addRtiResources(_engine.HtmlImage, ["_engine|HtmlImage", "ui|Image"]);
  dart.setMethodSignature(_engine.HtmlImage, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    clone: T$8.VoidToImage(),
    isCloneOf: T$8.ImageTobool(),
    debugGetOpenHandleStackTraces: T$8.VoidToListNOfStackTrace(),
    toByteData: T$10.__ToFutureOfByteDataN(),
    cloneImageElement: T$10.VoidToDomHTMLImageElement()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HtmlImage))));
  dart.setGetterSignature(_engine.HtmlImage, () => dart.global.Object.setPrototypeOf({
    debugDisposed: T$.bool(),
    colorSpace: T$8.ColorSpace()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.HtmlImage))));
  dart.setLibraryUri(_engine.HtmlImage, I[220]);
  dart.setFieldSignature(_engine.HtmlImage, () => dart.global.Object.setPrototypeOf({
    imgElement: {type: T$10.DomHTMLImageElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_didClone]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_disposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    width: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HtmlImage))));
  dart.defineExtensionMethods(_engine.HtmlImage, ['toString']);
  var filter$2 = dart.privateName(_engine, "PersistedImageFilter.filter");
  var offset$5 = dart.privateName(_engine, "PersistedImageFilter.offset");
  var _localTransformInverse = dart.privateName(_engine, "_localTransformInverse");
  _engine.PersistedImageFilter = class PersistedImageFilter extends _engine.PersistedContainerSurface {
    get filter() {
      return this[filter$2];
    }
    set filter(value) {
      super.filter = value;
    }
    get offset() {
      return this[offset$5];
    }
    set offset(value) {
      super.offset = value;
    }
    static ['_#new#tearOff'](oldLayer, filter, offset) {
      if (filter == null) dart.nullFailed(I[286], 11, 67, "filter");
      if (offset == null) dart.nullFailed(I[286], 11, 80, "offset");
      return new _engine.PersistedImageFilter.new(oldLayer, filter, offset);
    }
    recomputeTransformAndClip() {
      this.transform = dart.nullCheck(this.parent).transform;
      let dx = this.offset.dx;
      let dy = this.offset.dy;
      if (dx !== 0.0 || dy !== 0.0) {
        this.transform = dart.nullCheck(this.transform).clone();
        dart.nullCheck(this.transform).translate(dx, dy);
      }
      this.projectedClip = null;
    }
    get localTransformInverse() {
      let t$36540;
      t$36540 = this[_localTransformInverse];
      return t$36540 == null ? this[_localTransformInverse] = _engine.Matrix4.translationValues(-dart.notNull(this.offset.dx), -dart.notNull(this.offset.dy), 0.0) : t$36540;
    }
    get childContainer() {
      return this[_childContainer];
    }
    adoptElements(oldSurface) {
      T$10.PersistedImageFilter()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[286], 44, 43, "oldSurface");
      super.adoptElements(oldSurface);
      this[_svgFilter] = oldSurface[_svgFilter];
      this[_childContainer] = oldSurface[_childContainer];
      oldSurface[_svgFilter] = null;
      oldSurface[_childContainer] = null;
    }
    discard() {
      super.discard();
      _engine.ResourceManager.instance.removeResource(this[_svgFilter]);
      this[_svgFilter] = null;
      this[_childContainer] = null;
    }
    createElement() {
      let element = this.defaultCreateElement("flt-image-filter");
      let container = this.defaultCreateElement("flt-image-filter-interior");
      ;
      _engine.setElementStyle(container, "position", "absolute");
      _engine.setElementStyle(container, "transform-origin", "0 0 0");
      _engine.setElementStyle(element, "position", "absolute");
      _engine.setElementStyle(element, "transform-origin", "0 0 0");
      this[_childContainer] = container;
      T$9.DomNode()[_as](element.appendChild(container));
      return element;
    }
    apply() {
      let t$36540;
      let backendFilter = null;
      if (T$9.ColorFilter()[_is](this.filter)) {
        backendFilter = dart.nullCheck(_engine.createHtmlColorFilter(T$9.EngineColorFilter()[_as](this.filter)));
      } else {
        backendFilter = T$10.EngineImageFilter()[_as](this.filter);
      }
      _engine.ResourceManager.instance.removeResource(this[_svgFilter]);
      this[_svgFilter] = null;
      if (T$10.ModeHtmlColorFilter()[_is](backendFilter)) {
        this[_svgFilter] = backendFilter.makeSvgFilter(this.rootElement);
        if (this[_svgFilter] == null) {
          return;
        }
      } else if (T$10.MatrixHtmlColorFilter()[_is](backendFilter)) {
        this[_svgFilter] = backendFilter.makeSvgFilter(this.rootElement);
      }
      _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_childContainer]), "style"), backendFilter.filterAttribute);
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_childContainer]), "style"), backendFilter.transformAttribute);
      t$36540 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36540, dart.str(this.offset.dx) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36540, dart.str(this.offset.dy) + "px");
        return t$36540;
      })();
    }
    update(oldSurface) {
      T$10.PersistedImageFilter()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[286], 107, 36, "oldSurface");
      super.update(oldSurface);
      if (!dart.equals(oldSurface.filter, this.filter) || !dart.equals(oldSurface.offset, this.offset)) {
        this.apply();
      }
    }
  };
  (_engine.PersistedImageFilter.new = function(oldLayer, filter, offset) {
    if (filter == null) dart.nullFailed(I[286], 11, 67, "filter");
    if (offset == null) dart.nullFailed(I[286], 11, 80, "offset");
    this[_localTransformInverse] = null;
    this[_svgFilter] = null;
    this[_childContainer] = null;
    this[filter$2] = filter;
    this[offset$5] = offset;
    dart.global.Object.getPrototypeOf(_engine.PersistedImageFilter).new.call(this, oldLayer);
    ;
  }).prototype = _engine.PersistedImageFilter.prototype;
  dart.addRtiResources(_engine.PersistedImageFilter, ["_engine|PersistedImageFilter", "ui|ImageFilterEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedImageFilter, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedImageFilter))));
  dart.setGetterSignature(_engine.PersistedImageFilter, () => dart.global.Object.setPrototypeOf({localTransformInverse: T$9.Matrix4()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PersistedImageFilter))));
  dart.setLibraryUri(_engine.PersistedImageFilter, I[220]);
  dart.setFieldSignature(_engine.PersistedImageFilter, () => dart.global.Object.setPrototypeOf({
    filter: {type: T$9.ImageFilter(), isConst: false, isFinal: true, libraryUri: I[198]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_localTransformInverse]: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_svgFilter]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_childContainer]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedImageFilter))));
  var dx$ = dart.privateName(_engine, "PersistedOffset.dx");
  var dy$ = dart.privateName(_engine, "PersistedOffset.dy");
  _engine.PersistedOffset = class PersistedOffset extends _engine.PersistedContainerSurface {
    get dx() {
      return this[dx$];
    }
    set dx(value) {
      super.dx = value;
    }
    get dy() {
      return this[dy$];
    }
    set dy(value) {
      super.dy = value;
    }
    static ['_#new#tearOff'](oldLayer, dx, dy) {
      if (dx == null) dart.nullFailed(I[287], 11, 57, "dx");
      if (dy == null) dart.nullFailed(I[287], 11, 66, "dy");
      return new _engine.PersistedOffset.new(oldLayer, dx, dy);
    }
    recomputeTransformAndClip() {
      this.transform = dart.nullCheck(this.parent).transform;
      if (this.dx !== 0.0 || this.dy !== 0.0) {
        this.transform = dart.nullCheck(this.transform).clone();
        dart.nullCheck(this.transform).translate(this.dx, this.dy);
      }
      this.projectedClip = null;
    }
    get localTransformInverse() {
      let t$36540;
      t$36540 = this[_localTransformInverse];
      return t$36540 == null ? this[_localTransformInverse] = _engine.Matrix4.translationValues(-dart.notNull(this.dx), -dart.notNull(this.dy), 0.0) : t$36540;
    }
    createElement() {
      let element = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-offset");
      _engine.setElementStyle(element, "position", "absolute");
      _engine.setElementStyle(element, "transform-origin", "0 0 0");
      return element;
    }
    apply() {
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style"), "translate(" + dart.str(this.dx) + "px, " + dart.str(this.dy) + "px)");
    }
    update(oldSurface) {
      T$10.PersistedOffset()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[287], 51, 31, "oldSurface");
      super.update(oldSurface);
      if (oldSurface.dx != this.dx || oldSurface.dy != this.dy) {
        this.apply();
      }
    }
  };
  (_engine.PersistedOffset.new = function(oldLayer, dx, dy) {
    if (dx == null) dart.nullFailed(I[287], 11, 57, "dx");
    if (dy == null) dart.nullFailed(I[287], 11, 66, "dy");
    this[_localTransformInverse] = null;
    this[dx$] = dx;
    this[dy$] = dy;
    dart.global.Object.getPrototypeOf(_engine.PersistedOffset).new.call(this, oldLayer);
    ;
  }).prototype = _engine.PersistedOffset.prototype;
  dart.addRtiResources(_engine.PersistedOffset, ["_engine|PersistedOffset", "ui|OffsetEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedOffset, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedOffset))));
  dart.setGetterSignature(_engine.PersistedOffset, () => dart.global.Object.setPrototypeOf({localTransformInverse: T$9.Matrix4()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PersistedOffset))));
  dart.setLibraryUri(_engine.PersistedOffset, I[220]);
  dart.setFieldSignature(_engine.PersistedOffset, () => dart.global.Object.setPrototypeOf({
    dx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    dy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_localTransformInverse]: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedOffset))));
  var alpha$0 = dart.privateName(_engine, "PersistedOpacity.alpha");
  var offset$6 = dart.privateName(_engine, "PersistedOpacity.offset");
  _engine.PersistedOpacity = class PersistedOpacity extends _engine.PersistedContainerSurface {
    get alpha() {
      return this[alpha$0];
    }
    set alpha(value) {
      super.alpha = value;
    }
    get offset() {
      return this[offset$6];
    }
    set offset(value) {
      super.offset = value;
    }
    static ['_#new#tearOff'](oldLayer, alpha, offset) {
      if (alpha == null) dart.nullFailed(I[288], 11, 59, "alpha");
      if (offset == null) dart.nullFailed(I[288], 11, 71, "offset");
      return new _engine.PersistedOpacity.new(oldLayer, alpha, offset);
    }
    recomputeTransformAndClip() {
      this.transform = dart.nullCheck(this.parent).transform;
      let dx = this.offset.dx;
      let dy = this.offset.dy;
      if (dx !== 0.0 || dy !== 0.0) {
        this.transform = dart.nullCheck(this.transform).clone();
        dart.nullCheck(this.transform).translate(dx, dy);
      }
      this.projectedClip = null;
    }
    get localTransformInverse() {
      let t$36540;
      t$36540 = this[_localTransformInverse];
      return t$36540 == null ? this[_localTransformInverse] = _engine.Matrix4.translationValues(-dart.notNull(this.offset.dx), -dart.notNull(this.offset.dy), 0.0) : t$36540;
    }
    createElement() {
      let element = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-opacity");
      _engine.setElementStyle(element, "position", "absolute");
      _engine.setElementStyle(element, "transform-origin", "0 0 0");
      return element;
    }
    apply() {
      let element = dart.nullCheck(this.rootElement);
      _engine.setElementStyle(element, "opacity", dart.strSafe(dart.notNull(this.alpha) / 255));
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "translate(" + dart.str(this.offset.dx) + "px, " + dart.str(this.offset.dy) + "px)");
    }
    update(oldSurface) {
      T$10.PersistedOpacity()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[288], 54, 32, "oldSurface");
      super.update(oldSurface);
      if (this.alpha != oldSurface.alpha || !dart.equals(this.offset, oldSurface.offset)) {
        this.apply();
      }
    }
  };
  (_engine.PersistedOpacity.new = function(oldLayer, alpha, offset) {
    if (alpha == null) dart.nullFailed(I[288], 11, 59, "alpha");
    if (offset == null) dart.nullFailed(I[288], 11, 71, "offset");
    this[_localTransformInverse] = null;
    this[alpha$0] = alpha;
    this[offset$6] = offset;
    dart.global.Object.getPrototypeOf(_engine.PersistedOpacity).new.call(this, oldLayer);
    ;
  }).prototype = _engine.PersistedOpacity.prototype;
  dart.addRtiResources(_engine.PersistedOpacity, ["_engine|PersistedOpacity", "ui|OpacityEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedOpacity, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedOpacity))));
  dart.setGetterSignature(_engine.PersistedOpacity, () => dart.global.Object.setPrototypeOf({localTransformInverse: T$9.Matrix4()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PersistedOpacity))));
  dart.setLibraryUri(_engine.PersistedOpacity, I[220]);
  dart.setFieldSignature(_engine.PersistedOpacity, () => dart.global.Object.setPrototypeOf({
    alpha: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_localTransformInverse]: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedOpacity))));
  var invertColors = dart.privateName(_engine, "SurfacePaint.invertColors");
  var strokeMiterLimit = dart.privateName(_engine, "SurfacePaint.strokeMiterLimit");
  var imageFilter = dart.privateName(_engine, "SurfacePaint.imageFilter");
  var _paintData = dart.privateName(_engine, "_paintData");
  var _frozen = dart.privateName(_engine, "_frozen");
  _engine.SurfacePaint = class SurfacePaint extends core.Object {
    get invertColors() {
      return this[invertColors];
    }
    set invertColors(value) {
      if (value == null) dart.nullFailed(I[289], 97, 8, "invertColors");
      this[invertColors] = value;
    }
    get strokeMiterLimit() {
      return this[strokeMiterLimit];
    }
    set strokeMiterLimit(value) {
      if (value == null) dart.nullFailed(I[289], 149, 10, "strokeMiterLimit");
      this[strokeMiterLimit] = value;
    }
    get imageFilter() {
      return this[imageFilter];
    }
    set imageFilter(value) {
      this[imageFilter] = value;
    }
    get blendMode() {
      let t$36540;
      t$36540 = this[_paintData].blendMode;
      return t$36540 == null ? ui.BlendMode.srcOver : t$36540;
    }
    set blendMode(value) {
      if (value == null) dart.nullFailed(I[289], 16, 30, "value");
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].blendMode = value;
    }
    get style() {
      let t$36540;
      t$36540 = this[_paintData].style;
      return t$36540 == null ? ui.PaintingStyle.fill : t$36540;
    }
    set style(value) {
      if (value == null) dart.nullFailed(I[289], 28, 30, "value");
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].style = value;
    }
    get strokeWidth() {
      let t$36540;
      t$36540 = this[_paintData].strokeWidth;
      return t$36540 == null ? 0.0 : t$36540;
    }
    set strokeWidth(value) {
      if (value == null) dart.nullFailed(I[289], 40, 26, "value");
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].strokeWidth = value;
    }
    get strokeCap() {
      let t$36540;
      t$36540 = this[_paintData].strokeCap;
      return t$36540 == null ? ui.StrokeCap.butt : t$36540;
    }
    set strokeCap(value) {
      if (value == null) dart.nullFailed(I[289], 52, 30, "value");
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].strokeCap = value;
    }
    get strokeJoin() {
      let t$36540;
      t$36540 = this[_paintData].strokeJoin;
      return t$36540 == null ? ui.StrokeJoin.miter : t$36540;
    }
    set strokeJoin(value) {
      if (value == null) dart.nullFailed(I[289], 64, 32, "value");
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].strokeJoin = value;
    }
    get isAntiAlias() {
      return this[_paintData].isAntiAlias;
    }
    set isAntiAlias(value) {
      if (value == null) dart.nullFailed(I[289], 76, 24, "value");
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].isAntiAlias = value;
    }
    get color() {
      return new ui.Color.new(this[_paintData].color);
    }
    set color(value) {
      if (value == null) dart.nullFailed(I[289], 88, 22, "value");
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].color = value.value;
    }
    get shader() {
      return this[_paintData].shader;
    }
    set shader(value) {
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].shader = value;
    }
    get maskFilter() {
      return this[_paintData].maskFilter;
    }
    set maskFilter(value) {
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].maskFilter = value;
    }
    get filterQuality() {
      let t$36540;
      t$36540 = this[_paintData].filterQuality;
      return t$36540 == null ? ui.FilterQuality.none : t$36540;
    }
    set filterQuality(value) {
      if (value == null) dart.nullFailed(I[289], 127, 38, "value");
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].filterQuality = value;
    }
    get colorFilter() {
      return this[_paintData].colorFilter;
    }
    set colorFilter(value) {
      if (dart.test(this[_frozen])) {
        this[_paintData] = this[_paintData].clone();
        this[_frozen] = false;
      }
      this[_paintData].colorFilter = T$10.EngineColorFilterN()[_as](value);
    }
    get paintData() {
      this[_frozen] = true;
      return this[_paintData];
    }
    toString() {
      let resultString = "Paint()";
      if (!dart.test(dart.fn(() => {
        let result = new core.StringBuffer.new();
        let semicolon = "";
        result.write("Paint(");
        if (this.style == ui.PaintingStyle.stroke) {
          result.write(dart.str(this.style));
          if (this.strokeWidth !== 0.0) {
            result.write(" " + this.strokeWidth[$toStringAsFixed](1));
          } else {
            result.write(" hairline");
          }
          if (this.strokeCap != ui.StrokeCap.butt) {
            result.write(" " + dart.str(this.strokeCap));
          }
          if (this.strokeJoin == ui.StrokeJoin.miter) {
            if (this.strokeMiterLimit !== 4) {
              result.write(" " + dart.str(this.strokeJoin) + " up to " + this.strokeMiterLimit[$toStringAsFixed](1));
            }
          } else {
            result.write(" " + dart.str(this.strokeJoin));
          }
          semicolon = "; ";
        }
        if (!dart.test(this.isAntiAlias)) {
          result.write(semicolon + "antialias off");
          semicolon = "; ";
        }
        if (!dart.equals(this.color, C[609] || CT.C609)) {
          result.write(semicolon + dart.str(this.color));
          semicolon = "; ";
        }
        if (this.blendMode.index != _engine.SurfacePaint._kBlendModeDefault) {
          result.write(semicolon + dart.str(this.blendMode));
          semicolon = "; ";
        }
        if (this.colorFilter != null) {
          result.write(semicolon + "colorFilter: " + dart.str(this.colorFilter));
          semicolon = "; ";
        }
        if (this.maskFilter != null) {
          result.write(semicolon + "maskFilter: " + dart.str(this.maskFilter));
          semicolon = "; ";
        }
        if (this.filterQuality != ui.FilterQuality.none) {
          result.write(semicolon + "filterQuality: " + dart.str(this.filterQuality));
          semicolon = "; ";
        }
        if (this.shader != null) {
          result.write(semicolon + "shader: " + dart.str(this.shader));
          semicolon = "; ";
        }
        if (this.imageFilter != null) {
          result.write(semicolon + "imageFilter: " + dart.str(this.imageFilter));
          semicolon = "; ";
        }
        if (dart.test(this.invertColors)) {
          result.write(semicolon + "invert: " + dart.str(this.invertColors));
        }
        result.write(")");
        resultString = dart.toString(result);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[289], 179, 12, "() {\n      final StringBuffer result = StringBuffer();\n      String semicolon = '';\n      result.write('Paint(');\n      if (style == ui.PaintingStyle.stroke) {\n        result.write('$style');\n        if (strokeWidth != 0.0) {\n          result.write(' ${strokeWidth.toStringAsFixed(1)}');\n        } else {\n          result.write(' hairline');\n        }\n        if (strokeCap != ui.StrokeCap.butt) {\n          result.write(' $strokeCap');\n        }\n        if (strokeJoin == ui.StrokeJoin.miter) {\n          if (strokeMiterLimit != _kStrokeMiterLimitDefault) {\n            result.write(' $strokeJoin up to ${strokeMiterLimit.toStringAsFixed(1)}');\n          }\n        } else {\n          result.write(' $strokeJoin');\n        }\n        semicolon = '; ';\n      }\n      if (!isAntiAlias) {\n        result.write('${semicolon}antialias off');\n        semicolon = '; ';\n      }\n      if (color != const ui.Color(_kColorDefault)) {\n        result.write('$semicolon$color');\n        semicolon = '; ';\n      }\n      if (blendMode.index != _kBlendModeDefault) {\n        result.write('$semicolon$blendMode');\n        semicolon = '; ';\n      }\n      if (colorFilter != null) {\n        result.write('${semicolon}colorFilter: $colorFilter');\n        semicolon = '; ';\n      }\n      if (maskFilter != null) {\n        result.write('${semicolon}maskFilter: $maskFilter');\n        semicolon = '; ';\n      }\n      if (filterQuality != ui.FilterQuality.none) {\n        result.write('${semicolon}filterQuality: $filterQuality');\n        semicolon = '; ';\n      }\n      if (shader != null) {\n        result.write('${semicolon}shader: $shader');\n        semicolon = '; ';\n      }\n      if (imageFilter != null) {\n        result.write('${semicolon}imageFilter: $imageFilter');\n        semicolon = '; ';\n      }\n      if (invertColors) {\n        result.write('${semicolon}invert: $invertColors');\n      }\n      result.write(')');\n      resultString = result.toString();\n      return true;\n    }()");
      return resultString;
    }
    static ['_#new#tearOff']() {
      return new _engine.SurfacePaint.new();
    }
  };
  (_engine.SurfacePaint.new = function() {
    this[_paintData] = new _engine.SurfacePaintData.new();
    this[invertColors] = false;
    this[strokeMiterLimit] = 0.0;
    this[imageFilter] = null;
    this[_frozen] = false;
    ;
  }).prototype = _engine.SurfacePaint.prototype;
  dart.addRtiResources(_engine.SurfacePaint, ["_engine|SurfacePaint", "ui|Paint"]);
  dart.setGetterSignature(_engine.SurfacePaint, () => dart.global.Object.setPrototypeOf({
    blendMode: T$8.BlendMode(),
    style: T$8.PaintingStyle(),
    strokeWidth: T$.double(),
    strokeCap: T$8.StrokeCap(),
    strokeJoin: T$8.StrokeJoin(),
    isAntiAlias: T$.bool(),
    color: T$8.Color(),
    shader: T$10.ShaderN(),
    maskFilter: T$9.MaskFilterN(),
    filterQuality: T$9.FilterQuality(),
    colorFilter: T$10.ColorFilterN(),
    paintData: T$10.SurfacePaintData()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SurfacePaint))));
  dart.setSetterSignature(_engine.SurfacePaint, () => dart.global.Object.setPrototypeOf({
    blendMode: T$8.BlendMode(),
    style: T$8.PaintingStyle(),
    strokeWidth: T$.double(),
    strokeCap: T$8.StrokeCap(),
    strokeJoin: T$8.StrokeJoin(),
    isAntiAlias: T$.bool(),
    color: T$8.Color(),
    shader: T$10.ShaderN(),
    maskFilter: T$9.MaskFilterN(),
    filterQuality: T$9.FilterQuality(),
    colorFilter: T$10.ColorFilterN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.SurfacePaint))));
  dart.setLibraryUri(_engine.SurfacePaint, I[220]);
  dart.setFieldSignature(_engine.SurfacePaint, () => dart.global.Object.setPrototypeOf({
    [_paintData]: {type: T$10.SurfacePaintData(), isConst: false, isFinal: false, libraryUri: I[220]},
    invertColors: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    strokeMiterLimit: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    imageFilter: {type: T$10.ImageFilterN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_frozen]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfacePaint))));
  dart.setStaticFieldSignature(_engine.SurfacePaint, () => ['_kStrokeMiterLimitDefault', '_kColorDefault', '_kBlendModeDefault']);
  dart.defineExtensionMethods(_engine.SurfacePaint, ['toString']);
  dart.defineLazy(_engine.SurfacePaint, {
    /*_engine.SurfacePaint._kStrokeMiterLimitDefault*/get _kStrokeMiterLimitDefault() {
      return 4;
    },
    /*_engine.SurfacePaint._kColorDefault*/get _kColorDefault() {
      return 4278190080.0;
    },
    /*_engine.SurfacePaint._kBlendModeDefault*/get _kBlendModeDefault() {
      return ui.BlendMode.srcOver.index;
    }
  }, false);
  var blendMode = dart.privateName(_engine, "SurfacePaintData.blendMode");
  var style = dart.privateName(_engine, "SurfacePaintData.style");
  var strokeWidth = dart.privateName(_engine, "SurfacePaintData.strokeWidth");
  var strokeCap = dart.privateName(_engine, "SurfacePaintData.strokeCap");
  var strokeJoin = dart.privateName(_engine, "SurfacePaintData.strokeJoin");
  var isAntiAlias = dart.privateName(_engine, "SurfacePaintData.isAntiAlias");
  var color = dart.privateName(_engine, "SurfacePaintData.color");
  var shader = dart.privateName(_engine, "SurfacePaintData.shader");
  var maskFilter = dart.privateName(_engine, "SurfacePaintData.maskFilter");
  var filterQuality = dart.privateName(_engine, "SurfacePaintData.filterQuality");
  var colorFilter$0 = dart.privateName(_engine, "SurfacePaintData.colorFilter");
  _engine.SurfacePaintData = class SurfacePaintData extends core.Object {
    get blendMode() {
      return this[blendMode];
    }
    set blendMode(value) {
      this[blendMode] = value;
    }
    get style() {
      return this[style];
    }
    set style(value) {
      this[style] = value;
    }
    get strokeWidth() {
      return this[strokeWidth];
    }
    set strokeWidth(value) {
      this[strokeWidth] = value;
    }
    get strokeCap() {
      return this[strokeCap];
    }
    set strokeCap(value) {
      this[strokeCap] = value;
    }
    get strokeJoin() {
      return this[strokeJoin];
    }
    set strokeJoin(value) {
      this[strokeJoin] = value;
    }
    get isAntiAlias() {
      return this[isAntiAlias];
    }
    set isAntiAlias(value) {
      if (value == null) dart.nullFailed(I[289], 254, 8, "isAntiAlias");
      this[isAntiAlias] = value;
    }
    get color() {
      return this[color];
    }
    set color(value) {
      if (value == null) dart.nullFailed(I[289], 255, 7, "color");
      this[color] = value;
    }
    get shader() {
      return this[shader];
    }
    set shader(value) {
      this[shader] = value;
    }
    get maskFilter() {
      return this[maskFilter];
    }
    set maskFilter(value) {
      this[maskFilter] = value;
    }
    get filterQuality() {
      return this[filterQuality];
    }
    set filterQuality(value) {
      this[filterQuality] = value;
    }
    get colorFilter() {
      return this[colorFilter$0];
    }
    set colorFilter(value) {
      this[colorFilter$0] = value;
    }
    clone() {
      let t$36540;
      t$36540 = new _engine.SurfacePaintData.new();
      return (() => {
        t$36540.blendMode = this.blendMode;
        t$36540.filterQuality = this.filterQuality;
        t$36540.maskFilter = this.maskFilter;
        t$36540.shader = this.shader;
        t$36540.isAntiAlias = this.isAntiAlias;
        t$36540.color = this.color;
        t$36540.colorFilter = this.colorFilter;
        t$36540.strokeWidth = this.strokeWidth;
        t$36540.style = this.style;
        t$36540.strokeJoin = this.strokeJoin;
        t$36540.strokeCap = this.strokeCap;
        return t$36540;
      })();
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        let buffer = new core.StringBuffer.new("SurfacePaintData(");
        if (this.blendMode != null) {
          buffer.write("blendMode = " + dart.str(this.blendMode) + "; ");
        }
        if (this.style != null) {
          buffer.write("style = " + dart.str(this.style) + "; ");
        }
        if (this.strokeWidth != null) {
          buffer.write("strokeWidth = " + dart.str(this.strokeWidth) + "; ");
        }
        if (this.strokeCap != null) {
          buffer.write("strokeCap = " + dart.str(this.strokeCap) + "; ");
        }
        if (this.strokeJoin != null) {
          buffer.write("strokeJoin = " + dart.str(this.strokeJoin) + "; ");
        }
        buffer.write("color = " + dart.str(_engine['CssColor|toCssString'](new ui.Color.new(this.color))) + "; ");
        if (this.shader != null) {
          buffer.write("shader = " + dart.str(this.shader) + "; ");
        }
        if (this.maskFilter != null) {
          buffer.write("maskFilter = " + dart.str(this.maskFilter) + "; ");
        }
        if (this.filterQuality != null) {
          buffer.write("filterQuality = " + dart.str(this.filterQuality) + "; ");
        }
        if (this.colorFilter != null) {
          buffer.write("colorFilter = " + dart.str(this.colorFilter) + "; ");
        }
        buffer.write("isAntiAlias = " + dart.str(this.isAntiAlias) + ")");
        result = dart.toString(buffer);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[289], 280, 12, "() {\n      final StringBuffer buffer = StringBuffer('SurfacePaintData(');\n      if (blendMode != null) {\n        buffer.write('blendMode = $blendMode; ');\n      }\n      if (style != null) {\n        buffer.write('style = $style; ');\n      }\n      if (strokeWidth != null) {\n        buffer.write('strokeWidth = $strokeWidth; ');\n      }\n      if (strokeCap != null) {\n        buffer.write('strokeCap = $strokeCap; ');\n      }\n      if (strokeJoin != null) {\n        buffer.write('strokeJoin = $strokeJoin; ');\n      }\n      buffer.write('color = ${ui.Color(color).toCssString()}; ');\n      if (shader != null) {\n        buffer.write('shader = $shader; ');\n      }\n      if (maskFilter != null) {\n        buffer.write('maskFilter = $maskFilter; ');\n      }\n      if (filterQuality != null) {\n        buffer.write('filterQuality = $filterQuality; ');\n      }\n      if (colorFilter != null) {\n        buffer.write('colorFilter = $colorFilter; ');\n      }\n      buffer.write('isAntiAlias = $isAntiAlias)');\n      result = buffer.toString();\n\n      return true;\n    }()");
      return result;
    }
    static ['_#new#tearOff']() {
      return new _engine.SurfacePaintData.new();
    }
  };
  (_engine.SurfacePaintData.new = function() {
    this[blendMode] = null;
    this[style] = null;
    this[strokeWidth] = null;
    this[strokeCap] = null;
    this[strokeJoin] = null;
    this[isAntiAlias] = true;
    this[color] = 4278190080;
    this[shader] = null;
    this[maskFilter] = null;
    this[filterQuality] = null;
    this[colorFilter$0] = null;
    ;
  }).prototype = _engine.SurfacePaintData.prototype;
  dart.addRtiResources(_engine.SurfacePaintData, ["_engine|SurfacePaintData"]);
  dart.setMethodSignature(_engine.SurfacePaintData, () => dart.global.Object.setPrototypeOf({clone: T$10.VoidToSurfacePaintData()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SurfacePaintData))));
  dart.setLibraryUri(_engine.SurfacePaintData, I[220]);
  dart.setFieldSignature(_engine.SurfacePaintData, () => dart.global.Object.setPrototypeOf({
    blendMode: {type: T$9.BlendModeN(), isConst: false, isFinal: false, libraryUri: I[198]},
    style: {type: T$10.PaintingStyleN(), isConst: false, isFinal: false, libraryUri: I[198]},
    strokeWidth: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    strokeCap: {type: T$9.StrokeCapN(), isConst: false, isFinal: false, libraryUri: I[198]},
    strokeJoin: {type: T$9.StrokeJoinN(), isConst: false, isFinal: false, libraryUri: I[198]},
    isAntiAlias: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    color: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    shader: {type: T$10.ShaderN(), isConst: false, isFinal: false, libraryUri: I[198]},
    maskFilter: {type: T$9.MaskFilterN(), isConst: false, isFinal: false, libraryUri: I[198]},
    filterQuality: {type: T$10.FilterQualityN(), isConst: false, isFinal: false, libraryUri: I[198]},
    colorFilter: {type: T$10.EngineColorFilterN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfacePaintData))));
  dart.defineExtensionMethods(_engine.SurfacePaintData, ['toString']);
  _engine.HtmlFragmentProgram = class HtmlFragmentProgram extends core.Object {
    fragmentShader() {
      dart.throw(new core.UnsupportedError.new("FragmentProgram is not supported for the HTML renderer."));
    }
    static ['_#new#tearOff']() {
      return new _engine.HtmlFragmentProgram.new();
    }
  };
  (_engine.HtmlFragmentProgram.new = function() {
    ;
  }).prototype = _engine.HtmlFragmentProgram.prototype;
  dart.addRtiResources(_engine.HtmlFragmentProgram, ["_engine|HtmlFragmentProgram", "ui|FragmentProgram"]);
  dart.setMethodSignature(_engine.HtmlFragmentProgram, () => dart.global.Object.setPrototypeOf({fragmentShader: T$10.VoidToFragmentShader()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HtmlFragmentProgram))));
  dart.setLibraryUri(_engine.HtmlFragmentProgram, I[220]);
  _engine.HtmlFragmentShader = class HtmlFragmentShader extends core.Object {
    setFloat(index, value) {
      if (index == null) dart.nullFailed(I[289], 329, 21, "index");
      if (value == null) dart.nullFailed(I[289], 329, 35, "value");
      dart.throw(new core.UnsupportedError.new("FragmentShader is not supported for the HTML renderer."));
    }
    setImageSampler(index, image) {
      if (index == null) dart.nullFailed(I[289], 334, 28, "index");
      if (image == null) dart.nullFailed(I[289], 334, 44, "image");
      dart.throw(new core.UnsupportedError.new("FragmentShader is not supported for the HTML renderer."));
    }
    dispose() {
      dart.throw(new core.UnsupportedError.new("FragmentShader is not supported for the HTML renderer."));
    }
    get debugDisposed() {
      dart.throw(new core.UnsupportedError.new("FragmentShader is not supported for the HTML renderer."));
    }
    static ['_#new#tearOff']() {
      return new _engine.HtmlFragmentShader.new();
    }
  };
  (_engine.HtmlFragmentShader.new = function() {
    ;
  }).prototype = _engine.HtmlFragmentShader.prototype;
  dart.addRtiResources(_engine.HtmlFragmentShader, ["_engine|HtmlFragmentShader", "ui|FragmentShader", "ui|Shader"]);
  dart.setMethodSignature(_engine.HtmlFragmentShader, () => dart.global.Object.setPrototypeOf({
    setFloat: T$10.intAnddoubleTovoid(),
    setImageSampler: T$10.intAndImageTovoid(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HtmlFragmentShader))));
  dart.setGetterSignature(_engine.HtmlFragmentShader, () => dart.global.Object.setPrototypeOf({debugDisposed: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.HtmlFragmentShader))));
  dart.setLibraryUri(_engine.HtmlFragmentShader, I[220]);
  var p0x$ = dart.privateName(_engine, "Conic.p0x");
  var p0y$ = dart.privateName(_engine, "Conic.p0y");
  var p1x$ = dart.privateName(_engine, "Conic.p1x");
  var p1y$ = dart.privateName(_engine, "Conic.p1y");
  var p2x$ = dart.privateName(_engine, "Conic.p2x");
  var p2y$ = dart.privateName(_engine, "Conic.p2y");
  var fW$ = dart.privateName(_engine, "Conic.fW");
  var _computeSubdivisionCount = dart.privateName(_engine, "_computeSubdivisionCount");
  var _chop = dart.privateName(_engine, "_chop");
  var _findYExtrema = dart.privateName(_engine, "_findYExtrema");
  var _chopAt = dart.privateName(_engine, "_chopAt");
  _engine.Conic = class Conic extends core.Object {
    get p0x() {
      return this[p0x$];
    }
    set p0x(value) {
      if (value == null) dart.nullFailed(I[290], 19, 10, "p0x");
      this[p0x$] = value;
    }
    get p0y() {
      return this[p0y$];
    }
    set p0y(value) {
      if (value == null) dart.nullFailed(I[290], 19, 15, "p0y");
      this[p0y$] = value;
    }
    get p1x() {
      return this[p1x$];
    }
    set p1x(value) {
      if (value == null) dart.nullFailed(I[290], 19, 20, "p1x");
      this[p1x$] = value;
    }
    get p1y() {
      return this[p1y$];
    }
    set p1y(value) {
      if (value == null) dart.nullFailed(I[290], 19, 25, "p1y");
      this[p1y$] = value;
    }
    get p2x() {
      return this[p2x$];
    }
    set p2x(value) {
      if (value == null) dart.nullFailed(I[290], 19, 30, "p2x");
      this[p2x$] = value;
    }
    get p2y() {
      return this[p2y$];
    }
    set p2y(value) {
      if (value == null) dart.nullFailed(I[290], 19, 35, "p2y");
      this[p2y$] = value;
    }
    get fW() {
      return this[fW$];
    }
    set fW(value) {
      super.fW = value;
    }
    static ['_#new#tearOff'](p0x, p0y, p1x, p1y, p2x, p2y, fW) {
      if (p0x == null) dart.nullFailed(I[290], 17, 14, "p0x");
      if (p0y == null) dart.nullFailed(I[290], 17, 24, "p0y");
      if (p1x == null) dart.nullFailed(I[290], 17, 34, "p1x");
      if (p1y == null) dart.nullFailed(I[290], 17, 44, "p1y");
      if (p2x == null) dart.nullFailed(I[290], 17, 54, "p2x");
      if (p2y == null) dart.nullFailed(I[290], 17, 64, "p2y");
      if (fW == null) dart.nullFailed(I[290], 17, 74, "fW");
      return new _engine.Conic.new(p0x, p0y, p1x, p1y, p2x, p2y, fW);
    }
    toQuads() {
      let pointList = G$.JSArrayOfOffset().of([]);
      let subdivideCount = this[_computeSubdivisionCount](0.25);
      if (!(dart.notNull(subdivideCount) >= 0 && dart.notNull(subdivideCount) <= 5)) dart.assertFailed(null, I[290], 37, 12, "subdivideCount >= 0 && subdivideCount <= _maxSubdivisionCount");
      let quadCount = (1)[$leftShift](subdivideCount);
      let skipSubdivide = false;
      pointList[$add](new ui.Offset.new(this.p0x, this.p0y));
      if (subdivideCount === 5) {
        let dst = new _engine._ConicPair.new();
        this[_chop](dst);
        let conic0 = dart.nullCheck(dst.first);
        let conic1 = dart.nullCheck(dst.second);
        if (conic0.p1x == conic0.p2x && conic0.p1y == conic0.p2y && conic1.p0x == conic1.p1x && conic1.p0y == conic1.p1y) {
          let controlPointOffset = new ui.Offset.new(conic0.p1x, conic0.p1y);
          pointList[$add](controlPointOffset);
          pointList[$add](controlPointOffset);
          pointList[$add](controlPointOffset);
          pointList[$add](new ui.Offset.new(conic1.p2x, conic1.p2y));
          quadCount = 2;
          skipSubdivide = true;
        }
      }
      if (!skipSubdivide) {
        _engine.Conic._subdivide(this, subdivideCount, pointList);
      }
      let pointCount = 2 * quadCount + 1;
      let hasNonFinitePoints = false;
      for (let p = 0; p < pointCount; p = p + 1) {
        if (pointList[$_get](p).dx[$isNaN] || pointList[$_get](p).dy[$isNaN]) {
          hasNonFinitePoints = true;
          break;
        }
      }
      if (hasNonFinitePoints) {
        for (let p = 1; p < pointCount - 1; p = p + 1) {
          pointList[$_set](p, new ui.Offset.new(this.p1x, this.p1y));
        }
      }
      return pointList;
    }
    static _subdivide(src, level, pointList) {
      if (src == null) dart.nullFailed(I[290], 84, 32, "src");
      if (level == null) dart.nullFailed(I[290], 84, 41, "level");
      if (pointList == null) dart.nullFailed(I[290], 84, 64, "pointList");
      if (!(dart.notNull(level) >= 0)) dart.assertFailed(null, I[290], 85, 12, "level >= 0");
      if (0 === level) {
        pointList[$add](new ui.Offset.new(src.p1x, src.p1y));
        pointList[$add](new ui.Offset.new(src.p2x, src.p2y));
        return;
      }
      let dst = new _engine._ConicPair.new();
      src[_chop](dst);
      let conic0 = dart.nullCheck(dst.first);
      let conic1 = dart.nullCheck(dst.second);
      let startY = src.p0y;
      let endY = src.p2y;
      let cpY = src.p1y;
      if (dart.test(_engine.SPath.between(startY, cpY, endY))) {
        let midY = conic0.p2y;
        if (!dart.test(_engine.SPath.between(startY, midY, endY))) {
          let closerY = (dart.notNull(midY) - dart.notNull(startY))[$abs]() < (dart.notNull(midY) - dart.notNull(endY))[$abs]() ? startY : endY;
          conic0.p2y = conic1.p0y = closerY;
        }
        if (!dart.test(_engine.SPath.between(startY, conic0.p1y, conic0.p2y))) {
          conic0.p1y = startY;
        }
        if (!dart.test(_engine.SPath.between(conic1.p0y, conic1.p1y, endY))) {
          conic1.p1y = endY;
        }
        if (!dart.test(_engine.SPath.between(startY, conic0.p1y, conic0.p2y))) dart.assertFailed(null, I[290], 121, 14, "SPath.between(startY, conic0.p1y, conic0.p2y)");
        if (!dart.test(_engine.SPath.between(conic0.p1y, conic0.p2y, conic1.p1y))) dart.assertFailed(null, I[290], 122, 14, "SPath.between(conic0.p1y, conic0.p2y, conic1.p1y)");
        if (!dart.test(_engine.SPath.between(conic0.p2y, conic1.p1y, endY))) dart.assertFailed(null, I[290], 123, 14, "SPath.between(conic0.p2y, conic1.p1y, endY)");
      }
      level = dart.notNull(level) - 1;
      _engine.Conic._subdivide(conic0, level, pointList);
      _engine.Conic._subdivide(conic1, level, pointList);
    }
    static _subdivideWeightValue(w) {
      if (w == null) dart.nullFailed(I[290], 130, 46, "w");
      return math.sqrt(0.5 + dart.notNull(w) * 0.5);
    }
    [_chop](pair) {
      if (pair == null) dart.nullFailed(I[290], 135, 25, "pair");
      let scale = 1.0 / (1.0 + dart.notNull(this.fW));
      let newW = _engine.Conic._subdivideWeightValue(this.fW);
      let wp1 = new ui.Offset.new(dart.notNull(this.fW) * dart.notNull(this.p1x), dart.notNull(this.fW) * dart.notNull(this.p1y));
      let m = new ui.Offset.new((dart.notNull(this.p0x) + 2 * dart.notNull(wp1.dx) + dart.notNull(this.p2x)) * scale * 0.5, (dart.notNull(this.p0y) + 2 * dart.notNull(wp1.dy) + dart.notNull(this.p2y)) * scale * 0.5);
      if (m.dx[$isNaN] || m.dy[$isNaN]) {
        let w2 = dart.notNull(this.fW) * 2;
        let scaleHalf = 1.0 / (1 + dart.notNull(this.fW)) * 0.5;
        m = new ui.Offset.new((dart.notNull(this.p0x) + w2 * dart.notNull(this.p1x) + dart.notNull(this.p2x)) * scaleHalf, (dart.notNull(this.p0y) + w2 * dart.notNull(this.p1y) + dart.notNull(this.p2y)) * scaleHalf);
      }
      pair.first = new _engine.Conic.new(this.p0x, this.p0y, (dart.notNull(this.p0x) + dart.notNull(wp1.dx)) * scale, (dart.notNull(this.p0y) + dart.notNull(wp1.dy)) * scale, m.dx, m.dy, newW);
      pair.second = new _engine.Conic.new(m.dx, m.dy, (dart.notNull(this.p2x) + dart.notNull(wp1.dx)) * scale, (dart.notNull(this.p2y) + dart.notNull(wp1.dy)) * scale, this.p2x, this.p2y, newW);
    }
    chopAtYExtrema(dst) {
      if (dst == null) dart.nullFailed(I[290], 153, 35, "dst");
      let t = this[_findYExtrema]();
      if (t == null) {
        dst[$add](this);
        return;
      }
      if (!dart.test(this[_chopAt](t, dst, {cleanupMiddle: true}))) {
        dst[$add](this);
        return;
      }
    }
    [_findYExtrema]() {
      let p20 = dart.notNull(this.p2y) - dart.notNull(this.p0y);
      let p10 = dart.notNull(this.p1y) - dart.notNull(this.p0y);
      let wP10 = dart.notNull(this.fW) * p10;
      let coeff0 = dart.notNull(this.fW) * p20 - p20;
      let coeff1 = p20 - 2 * wP10;
      let coeff2 = wP10;
      let quadRoots = new _engine.QuadRoots.new();
      let rootCount = quadRoots.findRoots(coeff0, coeff1, coeff2);
      if (!(rootCount === 0 || rootCount === 1)) dart.assertFailed(null, I[290], 205, 12, "rootCount == 0 || rootCount == 1");
      if (rootCount === 1) {
        return quadRoots.root0;
      }
      return null;
    }
    [_chopAt](t, dst, opts) {
      if (t == null) dart.nullFailed(I[290], 212, 23, "t");
      if (dst == null) dart.nullFailed(I[290], 212, 38, "dst");
      let cleanupMiddle = opts && 'cleanupMiddle' in opts ? opts.cleanupMiddle : false;
      if (cleanupMiddle == null) dart.nullFailed(I[290], 212, 49, "cleanupMiddle");
      let tx0 = this.p0x;
      let ty0 = this.p0y;
      let tx1 = dart.notNull(this.p1x) * dart.notNull(this.fW);
      let ty1 = dart.notNull(this.p1y) * dart.notNull(this.fW);
      let tz1 = this.fW;
      let tx2 = this.p2x;
      let ty2 = this.p2y;
      let dx0 = dart.notNull(tx0) + (tx1 - dart.notNull(tx0)) * dart.notNull(t);
      let dx2 = tx1 + (dart.notNull(tx2) - tx1) * dart.notNull(t);
      let dx1 = dx0 + (dx2 - dx0) * dart.notNull(t);
      let dy0 = dart.notNull(ty0) + (ty1 - dart.notNull(ty0)) * dart.notNull(t);
      let dy2 = ty1 + (dart.notNull(ty2) - ty1) * dart.notNull(t);
      let dy1 = dy0 + (dy2 - dy0) * dart.notNull(t);
      let dz0 = 1 + (dart.notNull(tz1) - 1) * dart.notNull(t);
      let dz2 = dart.notNull(tz1) + (1 - dart.notNull(tz1)) * dart.notNull(t);
      let dz1 = dz0 + (dz2 - dz0) * dart.notNull(t);
      let root = math.sqrt(dz1);
      if (dart.test(_engine.SPath.nearlyEqual(root, 0.0))) {
        return false;
      }
      let w0 = dz0 / root;
      let w2 = dz2 / root;
      if (dart.test(_engine.SPath.nearlyEqual(dz0, 0.0)) || dart.test(_engine.SPath.nearlyEqual(dz1, 0.0)) || dart.test(_engine.SPath.nearlyEqual(dz2, 0.0))) {
        return false;
      }
      let chopPointX = dx1 / dz1;
      let chopPointY = dy1 / dz1;
      let cp0y = dy0 / dz0;
      let cp1y = dy2 / dz2;
      if (dart.test(cleanupMiddle)) {
        cp0y = chopPointY;
        cp1y = chopPointY;
      }
      let conic0 = new _engine.Conic.new(this.p0x, this.p0y, dx0 / dz0, cp0y, chopPointX, chopPointY, w0);
      let conic1 = new _engine.Conic.new(chopPointX, chopPointY, dx2 / dz2, cp1y, this.p2x, this.p2y, w2);
      dst[$add](conic0);
      dst[$add](conic1);
      return true;
    }
    [_computeSubdivisionCount](tolerance) {
      if (tolerance == null) dart.nullFailed(I[290], 269, 39, "tolerance");
      if (!tolerance[$isFinite]) dart.assertFailed(null, I[290], 270, 12, "tolerance.isFinite");
      if (!(this.p0x[$isFinite] && this.p1x[$isFinite] && this.p2x[$isFinite] && this.p0y[$isFinite] && this.p1y[$isFinite] && this.p2y[$isFinite])) dart.assertFailed(null, I[290], 272, 12, "p0x.isFinite &&\n        p1x.isFinite &&\n        p2x.isFinite &&\n        p0y.isFinite &&\n        p1y.isFinite &&\n        p2y.isFinite");
      if (dart.notNull(tolerance) < 0) {
        return 0;
      }
      let a = dart.notNull(this.fW) - 1;
      let k = a / (4.0 * (2.0 + a));
      let x = k * (dart.notNull(this.p0x) - 2 * dart.notNull(this.p1x) + dart.notNull(this.p2x));
      let y = k * (dart.notNull(this.p0y) - 2 * dart.notNull(this.p1y) + dart.notNull(this.p2y));
      let error = math.sqrt(x * x + y * y);
      let pow2 = 0;
      for (; pow2 < 5; pow2 = pow2 + 1) {
        if (error <= dart.notNull(tolerance)) {
          break;
        }
        error = error * 0.25;
      }
      return pow2;
    }
    evalTangentAt(t) {
      if (t == null) dart.nullFailed(I[290], 300, 34, "t");
      if (t === 0 && this.p0x == this.p1x && this.p0y == this.p1y || t === 1 && this.p1x == this.p2x && this.p1y == this.p2y) {
        return new ui.Offset.new(dart.notNull(this.p2x) - dart.notNull(this.p0x), dart.notNull(this.p2y) - dart.notNull(this.p0y));
      }
      let p20x = dart.notNull(this.p2x) - dart.notNull(this.p0x);
      let p20y = dart.notNull(this.p2y) - dart.notNull(this.p0y);
      let p10x = dart.notNull(this.p1x) - dart.notNull(this.p0x);
      let p10y = dart.notNull(this.p1y) - dart.notNull(this.p0y);
      let cx = dart.notNull(this.fW) * p10x;
      let cy = dart.notNull(this.fW) * p10y;
      let ax = dart.notNull(this.fW) * p20x - p20x;
      let ay = dart.notNull(this.fW) * p20y - p20y;
      let bx = p20x - cx - cx;
      let by = p20y - cy - cy;
      let quadC = new _engine.SkQuadCoefficients.new(ax, ay, bx, by, cx, cy);
      return new ui.Offset.new(quadC.evalX(t), quadC.evalY(t));
    }
    static evalNumerator(p0, p1, p2, w, t) {
      if (p0 == null) dart.nullFailed(I[290], 324, 14, "p0");
      if (p1 == null) dart.nullFailed(I[290], 324, 25, "p1");
      if (p2 == null) dart.nullFailed(I[290], 324, 36, "p2");
      if (w == null) dart.nullFailed(I[290], 324, 47, "w");
      if (t == null) dart.nullFailed(I[290], 324, 57, "t");
      if (!(dart.notNull(t) >= 0 && dart.notNull(t) <= 1)) dart.assertFailed(null, I[290], 325, 12, "t >= 0 && t <= 1");
      let src2w = dart.notNull(p1) * dart.notNull(w);
      let C = p0;
      let A = dart.notNull(p2) - 2 * src2w + dart.notNull(C);
      let B = 2 * (src2w - dart.notNull(C));
      return _engine.polyEval(A, B, C, t);
    }
    static evalDenominator(w, t) {
      if (w == null) dart.nullFailed(I[290], 333, 40, "w");
      if (t == null) dart.nullFailed(I[290], 333, 50, "t");
      let B = 2 * (dart.notNull(w) - 1);
      let A = -B;
      return _engine.polyEval(A, B, 1, t);
    }
  };
  (_engine.Conic.new = function(p0x, p0y, p1x, p1y, p2x, p2y, fW) {
    if (p0x == null) dart.nullFailed(I[290], 17, 14, "p0x");
    if (p0y == null) dart.nullFailed(I[290], 17, 24, "p0y");
    if (p1x == null) dart.nullFailed(I[290], 17, 34, "p1x");
    if (p1y == null) dart.nullFailed(I[290], 17, 44, "p1y");
    if (p2x == null) dart.nullFailed(I[290], 17, 54, "p2x");
    if (p2y == null) dart.nullFailed(I[290], 17, 64, "p2y");
    if (fW == null) dart.nullFailed(I[290], 17, 74, "fW");
    this[p0x$] = p0x;
    this[p0y$] = p0y;
    this[p1x$] = p1x;
    this[p1y$] = p1y;
    this[p2x$] = p2x;
    this[p2y$] = p2y;
    this[fW$] = fW;
    ;
  }).prototype = _engine.Conic.prototype;
  dart.addRtiResources(_engine.Conic, ["_engine|Conic"]);
  dart.setMethodSignature(_engine.Conic, () => dart.global.Object.setPrototypeOf({
    toQuads: T$10.VoidToListOfOffset(),
    [_chop]: T$10._ConicPairTovoid(),
    chopAtYExtrema: T$10.ListOfConicTovoid(),
    [_findYExtrema]: T$10.VoidTodoubleN(),
    [_chopAt]: T$10.doubleAndListOfConic__Tobool(),
    [_computeSubdivisionCount]: T$8.doubleToint(),
    evalTangentAt: T$8.doubleToOffset()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Conic))));
  dart.setStaticMethodSignature(_engine.Conic, () => ['_subdivide', '_subdivideWeightValue', 'evalNumerator', 'evalDenominator']);
  dart.setLibraryUri(_engine.Conic, I[220]);
  dart.setFieldSignature(_engine.Conic, () => dart.global.Object.setPrototypeOf({
    p0x: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    p0y: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    p1x: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    p1y: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    p2x: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    p2y: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    fW: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Conic))));
  dart.setStaticFieldSignature(_engine.Conic, () => ['_maxSubdivisionCount']);
  dart.defineLazy(_engine.Conic, {
    /*_engine.Conic._maxSubdivisionCount*/get _maxSubdivisionCount() {
      return 5;
    }
  }, false);
  var minX = dart.privateName(_engine, "QuadBounds.minX");
  var minY = dart.privateName(_engine, "QuadBounds.minY");
  var maxX = dart.privateName(_engine, "QuadBounds.maxX");
  var maxY = dart.privateName(_engine, "QuadBounds.maxY");
  _engine.QuadBounds = class QuadBounds extends core.Object {
    get minX() {
      return this[minX];
    }
    set minX(value) {
      if (value == null) dart.nullFailed(I[290], 342, 10, "minX");
      this[minX] = value;
    }
    get minY() {
      return this[minY];
    }
    set minY(value) {
      if (value == null) dart.nullFailed(I[290], 343, 10, "minY");
      this[minY] = value;
    }
    get maxX() {
      return this[maxX];
    }
    set maxX(value) {
      if (value == null) dart.nullFailed(I[290], 344, 10, "maxX");
      this[maxX] = value;
    }
    get maxY() {
      return this[maxY];
    }
    set maxY(value) {
      if (value == null) dart.nullFailed(I[290], 345, 10, "maxY");
      this[maxY] = value;
    }
    calculateBounds(points, pointIndex) {
      let t$36540, t$36540$, t$36540$0, t$36540$1, t$36540$2, t$36540$3;
      if (points == null) dart.nullFailed(I[290], 347, 36, "points");
      if (pointIndex == null) dart.nullFailed(I[290], 347, 48, "pointIndex");
      let x1 = points[$_get]((t$36540 = pointIndex, pointIndex = dart.notNull(t$36540) + 1, t$36540));
      let y1 = points[$_get]((t$36540$ = pointIndex, pointIndex = dart.notNull(t$36540$) + 1, t$36540$));
      let cpX = points[$_get]((t$36540$0 = pointIndex, pointIndex = dart.notNull(t$36540$0) + 1, t$36540$0));
      let cpY = points[$_get]((t$36540$1 = pointIndex, pointIndex = dart.notNull(t$36540$1) + 1, t$36540$1));
      let x2 = points[$_get]((t$36540$2 = pointIndex, pointIndex = dart.notNull(t$36540$2) + 1, t$36540$2));
      let y2 = points[$_get]((t$36540$3 = pointIndex, pointIndex = dart.notNull(t$36540$3) + 1, t$36540$3));
      this.minX = math.min(T$.double(), x1, x2);
      this.minY = math.min(T$.double(), y1, y2);
      this.maxX = math.max(T$.double(), x1, x2);
      this.maxY = math.max(T$.double(), y1, y2);
      let denom = dart.notNull(x1) - 2 * dart.notNull(cpX) + dart.notNull(x2);
      if (denom[$abs]() > 0.000244140625) {
        let t1 = (dart.notNull(x1) - dart.notNull(cpX)) / denom;
        if (t1 >= 0 && t1 <= 1.0) {
          let tprime = 1.0 - t1;
          let extremaX = tprime * tprime * dart.notNull(x1) + 2 * t1 * tprime * dart.notNull(cpX) + t1 * t1 * dart.notNull(x2);
          let extremaY = tprime * tprime * dart.notNull(y1) + 2 * t1 * tprime * dart.notNull(cpY) + t1 * t1 * dart.notNull(y2);
          this.minX = math.min(T$.double(), this.minX, extremaX);
          this.maxX = math.max(T$.double(), this.maxX, extremaX);
          this.minY = math.min(T$.double(), this.minY, extremaY);
          this.maxY = math.max(T$.double(), this.maxY, extremaY);
        }
      }
      denom = dart.notNull(y1) - 2 * dart.notNull(cpY) + dart.notNull(y2);
      if (denom[$abs]() > 0.000244140625) {
        let t2 = (dart.notNull(y1) - dart.notNull(cpY)) / denom;
        if (t2 >= 0 && t2 <= 1.0) {
          let tprime2 = 1.0 - t2;
          let extrema2X = tprime2 * tprime2 * dart.notNull(x1) + 2 * t2 * tprime2 * dart.notNull(cpX) + t2 * t2 * dart.notNull(x2);
          let extrema2Y = tprime2 * tprime2 * dart.notNull(y1) + 2 * t2 * tprime2 * dart.notNull(cpY) + t2 * t2 * dart.notNull(y2);
          this.minX = math.min(T$.double(), this.minX, extrema2X);
          this.maxX = math.max(T$.double(), this.maxX, extrema2X);
          this.minY = math.min(T$.double(), this.minY, extrema2Y);
          this.maxY = math.max(T$.double(), this.maxY, extrema2Y);
        }
      }
    }
    static ['_#new#tearOff']() {
      return new _engine.QuadBounds.new();
    }
  };
  (_engine.QuadBounds.new = function() {
    this[minX] = 0.0;
    this[minY] = 0.0;
    this[maxX] = 0.0;
    this[maxY] = 0.0;
    ;
  }).prototype = _engine.QuadBounds.prototype;
  dart.addRtiResources(_engine.QuadBounds, ["_engine|QuadBounds"]);
  dart.setMethodSignature(_engine.QuadBounds, () => dart.global.Object.setPrototypeOf({calculateBounds: T$11.Float32ListAndintTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.QuadBounds))));
  dart.setLibraryUri(_engine.QuadBounds, I[220]);
  dart.setFieldSignature(_engine.QuadBounds, () => dart.global.Object.setPrototypeOf({
    minX: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    minY: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxX: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxY: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.QuadBounds))));
  var minX$ = dart.privateName(_engine, "ConicBounds.minX");
  var minY$ = dart.privateName(_engine, "ConicBounds.minY");
  var maxX$ = dart.privateName(_engine, "ConicBounds.maxX");
  var maxY$ = dart.privateName(_engine, "ConicBounds.maxY");
  _engine.ConicBounds = class ConicBounds extends core.Object {
    get minX() {
      return this[minX$];
    }
    set minX(value) {
      if (value == null) dart.nullFailed(I[290], 405, 10, "minX");
      this[minX$] = value;
    }
    get minY() {
      return this[minY$];
    }
    set minY(value) {
      if (value == null) dart.nullFailed(I[290], 406, 10, "minY");
      this[minY$] = value;
    }
    get maxX() {
      return this[maxX$];
    }
    set maxX(value) {
      if (value == null) dart.nullFailed(I[290], 407, 10, "maxX");
      this[maxX$] = value;
    }
    get maxY() {
      return this[maxY$];
    }
    set maxY(value) {
      if (value == null) dart.nullFailed(I[290], 408, 10, "maxY");
      this[maxY$] = value;
    }
    calculateBounds(points, w, pointIndex) {
      let t$36540, t$36540$, t$36540$0, t$36540$1, t$36540$2, t$36540$3;
      if (points == null) dart.nullFailed(I[290], 409, 36, "points");
      if (w == null) dart.nullFailed(I[290], 409, 51, "w");
      if (pointIndex == null) dart.nullFailed(I[290], 409, 58, "pointIndex");
      let x1 = points[$_get]((t$36540 = pointIndex, pointIndex = dart.notNull(t$36540) + 1, t$36540));
      let y1 = points[$_get]((t$36540$ = pointIndex, pointIndex = dart.notNull(t$36540$) + 1, t$36540$));
      let cpX = points[$_get]((t$36540$0 = pointIndex, pointIndex = dart.notNull(t$36540$0) + 1, t$36540$0));
      let cpY = points[$_get]((t$36540$1 = pointIndex, pointIndex = dart.notNull(t$36540$1) + 1, t$36540$1));
      let x2 = points[$_get]((t$36540$2 = pointIndex, pointIndex = dart.notNull(t$36540$2) + 1, t$36540$2));
      let y2 = points[$_get]((t$36540$3 = pointIndex, pointIndex = dart.notNull(t$36540$3) + 1, t$36540$3));
      this.minX = math.min(T$.double(), x1, x2);
      this.minY = math.min(T$.double(), y1, y2);
      this.maxX = math.max(T$.double(), x1, x2);
      this.maxY = math.max(T$.double(), y1, y2);
      let roots = new _engine.QuadRoots.new();
      let p20x = dart.notNull(x2) - dart.notNull(x1);
      let p10x = dart.notNull(cpX) - dart.notNull(x1);
      let wP10x = dart.notNull(w) * p10x;
      let ax = dart.notNull(w) * p20x - p20x;
      let bx = p20x - 2 * wP10x;
      let cx = wP10x;
      let n = roots.findRoots(ax, bx, cx);
      if (n !== 0) {
        let t1 = dart.nullCheck(roots.root0);
        if (t1 >= 0 && t1 <= 1.0) {
          let denom = _engine.Conic.evalDenominator(w, t1);
          let numerator = _engine.Conic.evalNumerator(x1, cpX, x2, w, t1);
          let extremaX = dart.notNull(numerator) / dart.notNull(denom);
          numerator = _engine.Conic.evalNumerator(y1, cpY, y2, w, t1);
          let extremaY = dart.notNull(numerator) / dart.notNull(denom);
          this.minX = math.min(T$.double(), this.minX, extremaX);
          this.maxX = math.max(T$.double(), this.maxX, extremaX);
          this.minY = math.min(T$.double(), this.minY, extremaY);
          this.maxY = math.max(T$.double(), this.maxY, extremaY);
        }
      }
      let p20y = dart.notNull(y2) - dart.notNull(y1);
      let p10y = dart.notNull(cpY) - dart.notNull(y1);
      let wP10y = dart.notNull(w) * p10y;
      let a = dart.notNull(w) * p20y - p20y;
      let b = p20y - 2 * wP10y;
      let c = wP10y;
      n = roots.findRoots(a, b, c);
      if (n !== 0) {
        let t2 = dart.nullCheck(roots.root0);
        if (t2 >= 0 && t2 <= 1.0) {
          let denom = _engine.Conic.evalDenominator(w, t2);
          let numerator = _engine.Conic.evalNumerator(x1, cpX, x2, w, t2);
          let extrema2X = dart.notNull(numerator) / dart.notNull(denom);
          numerator = _engine.Conic.evalNumerator(y1, cpY, y2, w, t2);
          let extrema2Y = dart.notNull(numerator) / dart.notNull(denom);
          this.minX = math.min(T$.double(), this.minX, extrema2X);
          this.maxX = math.max(T$.double(), this.maxX, extrema2X);
          this.minY = math.min(T$.double(), this.minY, extrema2Y);
          this.maxY = math.max(T$.double(), this.maxY, extrema2Y);
        }
      }
    }
    static ['_#new#tearOff']() {
      return new _engine.ConicBounds.new();
    }
  };
  (_engine.ConicBounds.new = function() {
    this[minX$] = 0.0;
    this[minY$] = 0.0;
    this[maxX$] = 0.0;
    this[maxY$] = 0.0;
    ;
  }).prototype = _engine.ConicBounds.prototype;
  dart.addRtiResources(_engine.ConicBounds, ["_engine|ConicBounds"]);
  dart.setMethodSignature(_engine.ConicBounds, () => dart.global.Object.setPrototypeOf({calculateBounds: T$11.Float32ListAnddoubleAndintTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ConicBounds))));
  dart.setLibraryUri(_engine.ConicBounds, I[220]);
  dart.setFieldSignature(_engine.ConicBounds, () => dart.global.Object.setPrototypeOf({
    minX: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    minY: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxX: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxY: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ConicBounds))));
  _engine._ConicPair = class _ConicPair extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine._ConicPair.new();
    }
  };
  (_engine._ConicPair.new = function() {
    this.first = null;
    this.second = null;
    ;
  }).prototype = _engine._ConicPair.prototype;
  dart.addRtiResources(_engine._ConicPair, ["_engine|_ConicPair"]);
  dart.setLibraryUri(_engine._ConicPair, I[220]);
  dart.setFieldSignature(_engine._ConicPair, () => dart.global.Object.setPrototypeOf({
    first: {type: T$11.ConicN(), isConst: false, isFinal: false, libraryUri: I[220]},
    second: {type: T$11.ConicN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._ConicPair))));
  var minX$0 = dart.privateName(_engine, "CubicBounds.minX");
  var maxX$0 = dart.privateName(_engine, "CubicBounds.maxX");
  var minY$0 = dart.privateName(_engine, "CubicBounds.minY");
  var maxY$0 = dart.privateName(_engine, "CubicBounds.maxY");
  _engine.CubicBounds = class CubicBounds extends core.Object {
    get minX() {
      return this[minX$0];
    }
    set minX(value) {
      if (value == null) dart.nullFailed(I[291], 195, 10, "minX");
      this[minX$0] = value;
    }
    get maxX() {
      return this[maxX$0];
    }
    set maxX(value) {
      if (value == null) dart.nullFailed(I[291], 196, 10, "maxX");
      this[maxX$0] = value;
    }
    get minY() {
      return this[minY$0];
    }
    set minY(value) {
      if (value == null) dart.nullFailed(I[291], 197, 10, "minY");
      this[minY$0] = value;
    }
    get maxY() {
      return this[maxY$0];
    }
    set maxY(value) {
      if (value == null) dart.nullFailed(I[291], 198, 10, "maxY");
      this[maxY$0] = value;
    }
    calculateBounds(points, pointIndex) {
      let t$36540, t$36540$, t$36540$0, t$36540$1, t$36540$2, t$36540$3, t$36540$4, t$36540$5;
      if (points == null) dart.nullFailed(I[291], 203, 36, "points");
      if (pointIndex == null) dart.nullFailed(I[291], 203, 48, "pointIndex");
      let startX = points[$_get]((t$36540 = pointIndex, pointIndex = dart.notNull(t$36540) + 1, t$36540));
      let startY = points[$_get]((t$36540$ = pointIndex, pointIndex = dart.notNull(t$36540$) + 1, t$36540$));
      let cpX1 = points[$_get]((t$36540$0 = pointIndex, pointIndex = dart.notNull(t$36540$0) + 1, t$36540$0));
      let cpY1 = points[$_get]((t$36540$1 = pointIndex, pointIndex = dart.notNull(t$36540$1) + 1, t$36540$1));
      let cpX2 = points[$_get]((t$36540$2 = pointIndex, pointIndex = dart.notNull(t$36540$2) + 1, t$36540$2));
      let cpY2 = points[$_get]((t$36540$3 = pointIndex, pointIndex = dart.notNull(t$36540$3) + 1, t$36540$3));
      let endX = points[$_get]((t$36540$4 = pointIndex, pointIndex = dart.notNull(t$36540$4) + 1, t$36540$4));
      let endY = points[$_get]((t$36540$5 = pointIndex, pointIndex = dart.notNull(t$36540$5) + 1, t$36540$5));
      this.minX = math.min(T$.double(), startX, endX);
      this.minY = math.min(T$.double(), startY, endY);
      this.maxX = math.max(T$.double(), startX, endX);
      this.maxY = math.max(T$.double(), startY, endY);
      let extremaX = null;
      let extremaY = null;
      let a = null;
      let b = null;
      let c = null;
      if (!(dart.notNull(startX) < dart.notNull(cpX1) && dart.notNull(cpX1) < dart.notNull(cpX2) && dart.notNull(cpX2) < dart.notNull(endX) || dart.notNull(startX) > dart.notNull(cpX1) && dart.notNull(cpX1) > dart.notNull(cpX2) && dart.notNull(cpX2) > dart.notNull(endX))) {
        a = -dart.notNull(startX) + 3 * (dart.notNull(cpX1) - dart.notNull(cpX2)) + dart.notNull(endX);
        b = 2 * (dart.notNull(startX) - 2 * dart.notNull(cpX1) + dart.notNull(cpX2));
        c = -dart.notNull(startX) + dart.notNull(cpX1);
        let s = dart.notNull(b) * dart.notNull(b) - 4 * dart.notNull(a) * dart.notNull(c);
        if (s >= 0.0 && a[$abs]() > 0.000244140625) {
          if (s === 0.0) {
            let t = -dart.notNull(b) / (2 * dart.notNull(a));
            let tprime = 1.0 - t;
            if (t >= 0.0 && t <= 1.0) {
              extremaX = tprime * tprime * tprime * dart.notNull(startX) + 3 * tprime * tprime * t * dart.notNull(cpX1) + 3 * tprime * t * t * dart.notNull(cpX2) + t * t * t * dart.notNull(endX);
              this.minX = math.min(T$.double(), extremaX, this.minX);
              this.maxX = math.max(T$.double(), extremaX, this.maxX);
            }
          } else {
            s = math.sqrt(s);
            let t = (-dart.notNull(b) - s) / (2 * dart.notNull(a));
            let tprime = 1.0 - t;
            if (t >= 0.0 && t <= 1.0) {
              extremaX = tprime * tprime * tprime * dart.notNull(startX) + 3 * tprime * tprime * t * dart.notNull(cpX1) + 3 * tprime * t * t * dart.notNull(cpX2) + t * t * t * dart.notNull(endX);
              this.minX = math.min(T$.double(), extremaX, this.minX);
              this.maxX = math.max(T$.double(), extremaX, this.maxX);
            }
            t = (-dart.notNull(b) + s) / (2 * dart.notNull(a));
            tprime = 1.0 - t;
            if (t >= 0.0 && t <= 1.0) {
              extremaX = tprime * tprime * tprime * dart.notNull(startX) + 3 * tprime * tprime * t * dart.notNull(cpX1) + 3 * tprime * t * t * dart.notNull(cpX2) + t * t * t * dart.notNull(endX);
              this.minX = math.min(T$.double(), extremaX, this.minX);
              this.maxX = math.max(T$.double(), extremaX, this.maxX);
            }
          }
        }
      }
      if (!(dart.notNull(startY) < dart.notNull(cpY1) && dart.notNull(cpY1) < dart.notNull(cpY2) && dart.notNull(cpY2) < dart.notNull(endY) || dart.notNull(startY) > dart.notNull(cpY1) && dart.notNull(cpY1) > dart.notNull(cpY2) && dart.notNull(cpY2) > dart.notNull(endY))) {
        a = -dart.notNull(startY) + 3 * (dart.notNull(cpY1) - dart.notNull(cpY2)) + dart.notNull(endY);
        b = 2 * (dart.notNull(startY) - 2 * dart.notNull(cpY1) + dart.notNull(cpY2));
        c = -dart.notNull(startY) + dart.notNull(cpY1);
        let s = dart.notNull(b) * dart.notNull(b) - 4 * dart.notNull(a) * dart.notNull(c);
        if (s >= 0.0 && a[$abs]() > 0.000244140625) {
          if (s === 0.0) {
            let t = -dart.notNull(b) / (2 * dart.notNull(a));
            let tprime = 1.0 - t;
            if (t >= 0.0 && t <= 1.0) {
              extremaY = tprime * tprime * tprime * dart.notNull(startY) + 3 * tprime * tprime * t * dart.notNull(cpY1) + 3 * tprime * t * t * dart.notNull(cpY2) + t * t * t * dart.notNull(endY);
              this.minY = math.min(T$.double(), extremaY, this.minY);
              this.maxY = math.max(T$.double(), extremaY, this.maxY);
            }
          } else {
            s = math.sqrt(s);
            let t = (-dart.notNull(b) - s) / (2 * dart.notNull(a));
            let tprime = 1.0 - t;
            if (t >= 0.0 && t <= 1.0) {
              extremaY = tprime * tprime * tprime * dart.notNull(startY) + 3 * tprime * tprime * t * dart.notNull(cpY1) + 3 * tprime * t * t * dart.notNull(cpY2) + t * t * t * dart.notNull(endY);
              this.minY = math.min(T$.double(), extremaY, this.minY);
              this.maxY = math.max(T$.double(), extremaY, this.maxY);
            }
            let t2 = (-dart.notNull(b) + s) / (2 * dart.notNull(a));
            let tprime2 = 1.0 - t2;
            if (t2 >= 0.0 && t2 <= 1.0) {
              extremaY = tprime2 * tprime2 * tprime2 * dart.notNull(startY) + 3 * tprime2 * tprime2 * t2 * dart.notNull(cpY1) + 3 * tprime2 * t2 * t2 * dart.notNull(cpY2) + t2 * t2 * t2 * dart.notNull(endY);
              this.minY = math.min(T$.double(), extremaY, this.minY);
              this.maxY = math.max(T$.double(), extremaY, this.maxY);
            }
          }
        }
      }
    }
    static ['_#new#tearOff']() {
      return new _engine.CubicBounds.new();
    }
  };
  (_engine.CubicBounds.new = function() {
    this[minX$0] = 0.0;
    this[maxX$0] = 0.0;
    this[minY$0] = 0.0;
    this[maxY$0] = 0.0;
    ;
  }).prototype = _engine.CubicBounds.prototype;
  dart.addRtiResources(_engine.CubicBounds, ["_engine|CubicBounds"]);
  dart.setMethodSignature(_engine.CubicBounds, () => dart.global.Object.setPrototypeOf({calculateBounds: T$11.Float32ListAndintTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CubicBounds))));
  dart.setLibraryUri(_engine.CubicBounds, I[220]);
  dart.setFieldSignature(_engine.CubicBounds, () => dart.global.Object.setPrototypeOf({
    minX: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxX: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    minY: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxY: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CubicBounds))));
  var pathRef = dart.privateName(_engine, "SurfacePath.pathRef");
  var fLastMoveToIndex = dart.privateName(_engine, "SurfacePath.fLastMoveToIndex");
  var _convexityType = dart.privateName(_engine, "_convexityType");
  var _firstDirection = dart.privateName(_engine, "_firstDirection");
  var _resetFields = dart.privateName(_engine, "_resetFields");
  var _copyFields = dart.privateName(_engine, "_copyFields");
  var _resetAfterEdit = dart.privateName(_engine, "_resetAfterEdit");
  var _debugValidate = dart.privateName(_engine, "_debugValidate");
  var _injectMoveToIfNeeded = dart.privateName(_engine, "_injectMoveToIfNeeded");
  var _quadTo = dart.privateName(_engine, "_quadTo");
  var _hasOnlyMoveTos = dart.privateName(_engine, "_hasOnlyMoveTos");
  var _lineToIfNotTooCloseToLastPoint = dart.privateName(_engine, "_lineToIfNotTooCloseToLastPoint");
  var _addOval = dart.privateName(_engine, "_addOval");
  var _addRRect = dart.privateName(_engine, "_addRRect");
  var _setComputedConvexity = dart.privateName(_engine, "_setComputedConvexity");
  var _internalGetConvexity = dart.privateName(_engine, "_internalGetConvexity");
  _engine.SurfacePath = class SurfacePath extends core.Object {
    get pathRef() {
      return this[pathRef];
    }
    set pathRef(value) {
      if (value == null) dart.nullFailed(I[292], 50, 11, "pathRef");
      this[pathRef] = value;
    }
    get fLastMoveToIndex() {
      return this[fLastMoveToIndex];
    }
    set fLastMoveToIndex(value) {
      if (value == null) dart.nullFailed(I[292], 55, 7, "fLastMoveToIndex");
      this[fLastMoveToIndex] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.SurfacePath.new();
    }
    static ['_#from#tearOff'](source) {
      if (source == null) dart.nullFailed(I[292], 30, 32, "source");
      return new _engine.SurfacePath.from(source);
    }
    static ['_#shiftedFrom#tearOff'](source, offsetX, offsetY) {
      if (source == null) dart.nullFailed(I[292], 36, 39, "source");
      if (offsetX == null) dart.nullFailed(I[292], 36, 54, "offsetX");
      if (offsetY == null) dart.nullFailed(I[292], 36, 70, "offsetY");
      return new _engine.SurfacePath.shiftedFrom(source, offsetX, offsetY);
    }
    static ['_#shallowCopy#tearOff'](source) {
      if (source == null) dart.nullFailed(I[292], 41, 39, "source");
      return new _engine.SurfacePath.shallowCopy(source);
    }
    [_resetFields]() {
      this.fLastMoveToIndex = 0;
      this[_fillType$] = ui.PathFillType.nonZero;
      this[_resetAfterEdit]();
    }
    [_resetAfterEdit]() {
      this[_convexityType] = -1;
      this[_firstDirection] = -1;
    }
    [_copyFields](source) {
      if (source == null) dart.nullFailed(I[292], 70, 32, "source");
      this[_fillType$] = source[_fillType$];
      this.fLastMoveToIndex = source.fLastMoveToIndex;
      this[_convexityType] = source[_convexityType];
      this[_firstDirection] = source[_firstDirection];
    }
    get fillType() {
      return this[_fillType$];
    }
    set fillType(value) {
      if (value == null) dart.nullFailed(I[292], 84, 32, "value");
      this[_fillType$] = value;
    }
    isInterpolatable(compare) {
      if (compare == null) dart.nullFailed(I[292], 89, 37, "compare");
      return compare.pathRef.countVerbs() == this.pathRef.countVerbs() && compare.pathRef.countPoints() == this.pathRef.countPoints() && compare.pathRef.countWeights() == this.pathRef.countWeights();
    }
    interpolate(ending, weight, out) {
      if (ending == null) dart.nullFailed(I[292], 94, 32, "ending");
      if (weight == null) dart.nullFailed(I[292], 94, 47, "weight");
      if (out == null) dart.nullFailed(I[292], 94, 67, "out");
      let pointCount = this.pathRef.countPoints();
      if (pointCount != ending.pathRef.countPoints()) {
        return false;
      }
      if (pointCount === 0) {
        return true;
      }
      out.reset();
      out.addPathWithMode(this, 0.0, 0.0, null, 0);
      _engine.PathRef.interpolate(ending.pathRef, weight, out.pathRef);
      return true;
    }
    reset() {
      if (this.pathRef.countVerbs() !== 0) {
        this.pathRef = new _engine.PathRef.new();
        this[_resetFields]();
      }
    }
    rewind() {
      this.pathRef.rewind();
      this[_resetFields]();
    }
    get isLastContourClosed() {
      let verbCount = this.pathRef.countVerbs();
      return dart.notNull(verbCount) > 0 && this.pathRef.atVerb(dart.notNull(verbCount) - 1) === 5;
    }
    get isFinite() {
      this[_debugValidate]();
      return this.pathRef.isFinite;
    }
    [_debugValidate]() {
      if (!dart.test(this.pathRef.isValid)) dart.assertFailed(null, I[292], 149, 12, "pathRef.isValid");
    }
    isLine(out) {
      if (out == null) dart.nullFailed(I[292], 153, 27, "out");
      if (!(dart.notNull(out[$length]) >= 4)) dart.assertFailed(null, I[292], 154, 12, "out.length >= 4");
      let verbCount = this.pathRef.countPoints();
      if (2 === verbCount && this.pathRef.atVerb(0) === 0 && this.pathRef.atVerb(1) !== 1) {
        out[$_set](0, this.pathRef.points[$_get](0));
        out[$_set](1, this.pathRef.points[$_get](1));
        out[$_set](2, this.pathRef.points[$_get](2));
        out[$_set](3, this.pathRef.points[$_get](3));
        return true;
      }
      return false;
    }
    moveTo(x, y) {
      if (x == null) dart.nullFailed(I[292], 170, 22, "x");
      if (y == null) dart.nullFailed(I[292], 170, 32, "y");
      let pointIndex = this.pathRef.growForVerb(0, 0.0);
      this.fLastMoveToIndex = dart.notNull(pointIndex) + 1;
      this.pathRef.setPoint(pointIndex, x, y);
      this[_resetAfterEdit]();
    }
    relativeMoveTo(dx, dy) {
      let t$36540;
      if (dx == null) dart.nullFailed(I[292], 180, 30, "dx");
      if (dy == null) dart.nullFailed(I[292], 180, 41, "dy");
      let pointCount = this.pathRef.countPoints();
      if (pointCount === 0) {
        this.moveTo(dx, dy);
      } else {
        let pointIndex = (dart.notNull(pointCount) - 1) * 2;
        let lastPointX = this.pathRef.points[$_get]((t$36540 = pointIndex, pointIndex = t$36540 + 1, t$36540));
        let lastPointY = this.pathRef.points[$_get](pointIndex);
        this.moveTo(dart.notNull(lastPointX) + dart.notNull(dx), dart.notNull(lastPointY) + dart.notNull(dy));
      }
    }
    [_injectMoveToIfNeeded]() {
      let t$36540;
      if (dart.notNull(this.fLastMoveToIndex) <= 0) {
        let x = null;
        let y = null;
        if (this.pathRef.countPoints() === 0) {
          x = y = 0.0;
        } else {
          let pointIndex = 2 * (-dart.notNull(this.fLastMoveToIndex) - 1);
          x = this.pathRef.points[$_get]((t$36540 = pointIndex, pointIndex = t$36540 + 1, t$36540));
          y = this.pathRef.points[$_get](pointIndex);
        }
        this.moveTo(x, y);
      }
    }
    lineTo(x, y) {
      if (x == null) dart.nullFailed(I[292], 209, 22, "x");
      if (y == null) dart.nullFailed(I[292], 209, 32, "y");
      if (dart.notNull(this.fLastMoveToIndex) <= 0) {
        this[_injectMoveToIfNeeded]();
      }
      let pointIndex = this.pathRef.growForVerb(1, 0.0);
      this.pathRef.setPoint(pointIndex, x, y);
      this[_resetAfterEdit]();
    }
    relativeLineTo(dx, dy) {
      let t$36540;
      if (dx == null) dart.nullFailed(I[292], 221, 30, "dx");
      if (dy == null) dart.nullFailed(I[292], 221, 41, "dy");
      let pointCount = this.pathRef.countPoints();
      if (pointCount === 0) {
        this.lineTo(dx, dy);
      } else {
        let pointIndex = (dart.notNull(pointCount) - 1) * 2;
        let lastPointX = this.pathRef.points[$_get]((t$36540 = pointIndex, pointIndex = t$36540 + 1, t$36540));
        let lastPointY = this.pathRef.points[$_get](pointIndex);
        this.lineTo(dart.notNull(lastPointX) + dart.notNull(dx), dart.notNull(lastPointY) + dart.notNull(dy));
      }
    }
    quadraticBezierTo(x1, y1, x2, y2) {
      if (x1 == null) dart.nullFailed(I[292], 237, 33, "x1");
      if (y1 == null) dart.nullFailed(I[292], 237, 44, "y1");
      if (x2 == null) dart.nullFailed(I[292], 237, 55, "x2");
      if (y2 == null) dart.nullFailed(I[292], 237, 66, "y2");
      this[_injectMoveToIfNeeded]();
      this[_quadTo](x1, y1, x2, y2);
    }
    relativeQuadraticBezierTo(x1, y1, x2, y2) {
      let t$36540;
      if (x1 == null) dart.nullFailed(I[292], 247, 41, "x1");
      if (y1 == null) dart.nullFailed(I[292], 247, 52, "y1");
      if (x2 == null) dart.nullFailed(I[292], 247, 63, "x2");
      if (y2 == null) dart.nullFailed(I[292], 247, 74, "y2");
      let pointCount = this.pathRef.countPoints();
      if (pointCount === 0) {
        this.quadraticBezierTo(x1, y1, x2, y2);
      } else {
        let pointIndex = (dart.notNull(pointCount) - 1) * 2;
        let lastPointX = this.pathRef.points[$_get]((t$36540 = pointIndex, pointIndex = t$36540 + 1, t$36540));
        let lastPointY = this.pathRef.points[$_get](pointIndex);
        this.quadraticBezierTo(dart.notNull(x1) + dart.notNull(lastPointX), dart.notNull(y1) + dart.notNull(lastPointY), dart.notNull(x2) + dart.notNull(lastPointX), dart.notNull(y2) + dart.notNull(lastPointY));
      }
    }
    [_quadTo](x1, y1, x2, y2) {
      if (x1 == null) dart.nullFailed(I[292], 260, 23, "x1");
      if (y1 == null) dart.nullFailed(I[292], 260, 34, "y1");
      if (x2 == null) dart.nullFailed(I[292], 260, 45, "x2");
      if (y2 == null) dart.nullFailed(I[292], 260, 56, "y2");
      let pointIndex = this.pathRef.growForVerb(2, 0.0);
      this.pathRef.setPoint(pointIndex, x1, y1);
      this.pathRef.setPoint(dart.notNull(pointIndex) + 1, x2, y2);
      this[_resetAfterEdit]();
    }
    conicTo(x1, y1, x2, y2, w) {
      if (x1 == null) dart.nullFailed(I[292], 273, 23, "x1");
      if (y1 == null) dart.nullFailed(I[292], 273, 34, "y1");
      if (x2 == null) dart.nullFailed(I[292], 273, 45, "x2");
      if (y2 == null) dart.nullFailed(I[292], 273, 56, "y2");
      if (w == null) dart.nullFailed(I[292], 273, 67, "w");
      this[_injectMoveToIfNeeded]();
      let pointIndex = this.pathRef.growForVerb(3, w);
      this.pathRef.setPoint(pointIndex, x1, y1);
      this.pathRef.setPoint(dart.notNull(pointIndex) + 1, x2, y2);
      this[_resetAfterEdit]();
    }
    relativeConicTo(x1, y1, x2, y2, w) {
      let t$36540;
      if (x1 == null) dart.nullFailed(I[292], 288, 31, "x1");
      if (y1 == null) dart.nullFailed(I[292], 288, 42, "y1");
      if (x2 == null) dart.nullFailed(I[292], 288, 53, "x2");
      if (y2 == null) dart.nullFailed(I[292], 288, 64, "y2");
      if (w == null) dart.nullFailed(I[292], 288, 75, "w");
      let pointCount = this.pathRef.countPoints();
      if (pointCount === 0) {
        this.conicTo(x1, y1, x2, y2, w);
      } else {
        let pointIndex = (dart.notNull(pointCount) - 1) * 2;
        let lastPointX = this.pathRef.points[$_get]((t$36540 = pointIndex, pointIndex = t$36540 + 1, t$36540));
        let lastPointY = this.pathRef.points[$_get](pointIndex);
        this.conicTo(dart.notNull(lastPointX) + dart.notNull(x1), dart.notNull(lastPointY) + dart.notNull(y1), dart.notNull(lastPointX) + dart.notNull(x2), dart.notNull(lastPointY) + dart.notNull(y2), w);
      }
    }
    cubicTo(x1, y1, x2, y2, x3, y3) {
      if (x1 == null) dart.nullFailed(I[292], 306, 14, "x1");
      if (y1 == null) dart.nullFailed(I[292], 306, 25, "y1");
      if (x2 == null) dart.nullFailed(I[292], 306, 36, "x2");
      if (y2 == null) dart.nullFailed(I[292], 306, 47, "y2");
      if (x3 == null) dart.nullFailed(I[292], 306, 58, "x3");
      if (y3 == null) dart.nullFailed(I[292], 306, 69, "y3");
      this[_injectMoveToIfNeeded]();
      let pointIndex = this.pathRef.growForVerb(4, 0.0);
      this.pathRef.setPoint(pointIndex, x1, y1);
      this.pathRef.setPoint(dart.notNull(pointIndex) + 1, x2, y2);
      this.pathRef.setPoint(dart.notNull(pointIndex) + 2, x3, y3);
      this[_resetAfterEdit]();
    }
    relativeCubicTo(x1, y1, x2, y2, x3, y3) {
      let t$36540;
      if (x1 == null) dart.nullFailed(I[292], 321, 14, "x1");
      if (y1 == null) dart.nullFailed(I[292], 321, 25, "y1");
      if (x2 == null) dart.nullFailed(I[292], 321, 36, "x2");
      if (y2 == null) dart.nullFailed(I[292], 321, 47, "y2");
      if (x3 == null) dart.nullFailed(I[292], 321, 58, "x3");
      if (y3 == null) dart.nullFailed(I[292], 321, 69, "y3");
      let pointCount = this.pathRef.countPoints();
      if (pointCount === 0) {
        this.cubicTo(x1, y1, x2, y2, x3, y3);
      } else {
        let pointIndex = (dart.notNull(pointCount) - 1) * 2;
        let lastPointX = this.pathRef.points[$_get]((t$36540 = pointIndex, pointIndex = t$36540 + 1, t$36540));
        let lastPointY = this.pathRef.points[$_get](pointIndex);
        this.cubicTo(dart.notNull(x1) + dart.notNull(lastPointX), dart.notNull(y1) + dart.notNull(lastPointY), dart.notNull(x2) + dart.notNull(lastPointX), dart.notNull(y2) + dart.notNull(lastPointY), dart.notNull(x3) + dart.notNull(lastPointX), dart.notNull(y3) + dart.notNull(lastPointY));
      }
    }
    close() {
      this[_debugValidate]();
      let verbCount = this.pathRef.countVerbs();
      if (verbCount !== 0 && this.pathRef.atVerb(dart.notNull(verbCount) - 1) !== 5) {
        this.pathRef.growForVerb(5, 0.0);
      }
      if (dart.notNull(this.fLastMoveToIndex) >= 0) {
        this.fLastMoveToIndex = -dart.notNull(this.fLastMoveToIndex);
      }
      this[_resetAfterEdit]();
    }
    addRect(rect) {
      if (rect == null) dart.nullFailed(I[292], 355, 24, "rect");
      this.addRectWithDirection(rect, 0, 0);
    }
    [_hasOnlyMoveTos]() {
      let verbCount = this.pathRef.countVerbs();
      for (let i = 0; i < dart.notNull(verbCount); i = i + 1) {
        switch (this.pathRef.atVerb(i)) {
          case 1:
          case 2:
          case 3:
          case 4:
            {
              return false;
            }
        }
      }
      return true;
    }
    addRectWithDirection(rect, direction, startIndex) {
      if (rect == null) dart.nullFailed(I[292], 373, 37, "rect");
      if (direction == null) dart.nullFailed(I[292], 373, 47, "direction");
      if (startIndex == null) dart.nullFailed(I[292], 373, 62, "startIndex");
      if (!(direction !== -1)) dart.assertFailed(null, I[292], 374, 12, "direction != SPathDirection.kUnknown");
      let isRect = this[_hasOnlyMoveTos]();
      let finalDirection = dart.test(this[_hasOnlyMoveTos]()) ? direction : -1;
      let pointIndex0 = this.pathRef.growForVerb(0, 0.0);
      this.fLastMoveToIndex = dart.notNull(pointIndex0) + 1;
      let pointIndex1 = this.pathRef.growForVerb(1, 0.0);
      let pointIndex2 = this.pathRef.growForVerb(1, 0.0);
      let pointIndex3 = this.pathRef.growForVerb(1, 0.0);
      this.pathRef.growForVerb(5, 0.0);
      if (direction === 0) {
        this.pathRef.setPoint(pointIndex0, rect.left, rect.top);
        this.pathRef.setPoint(pointIndex1, rect.right, rect.top);
        this.pathRef.setPoint(pointIndex2, rect.right, rect.bottom);
        this.pathRef.setPoint(pointIndex3, rect.left, rect.bottom);
      } else {
        this.pathRef.setPoint(pointIndex3, rect.left, rect.bottom);
        this.pathRef.setPoint(pointIndex2, rect.right, rect.bottom);
        this.pathRef.setPoint(pointIndex1, rect.right, rect.top);
        this.pathRef.setPoint(pointIndex0, rect.left, rect.top);
      }
      this.pathRef.setIsRect(isRect, direction === 1, 0);
      this[_resetAfterEdit]();
      this[_firstDirection] = finalDirection;
    }
    arcTo(rect, startAngle, sweepAngle, forceMoveTo) {
      if (rect == null) dart.nullFailed(I[292], 421, 15, "rect");
      if (startAngle == null) dart.nullFailed(I[292], 421, 28, "startAngle");
      if (sweepAngle == null) dart.nullFailed(I[292], 421, 47, "sweepAngle");
      if (forceMoveTo == null) dart.nullFailed(I[292], 421, 64, "forceMoveTo");
      if (!dart.test(_engine.rectIsValid(rect))) dart.assertFailed(null, I[292], 422, 12, "rectIsValid(rect)");
      if (rect.width === 0 && rect.height === 0) {
        return;
      }
      if (this.pathRef.countPoints() === 0) {
        forceMoveTo = true;
      }
      let lonePoint = _engine._arcIsLonePoint(rect, startAngle, sweepAngle);
      if (lonePoint != null) {
        if (dart.test(forceMoveTo)) {
          this.moveTo(lonePoint.dx, lonePoint.dy);
        } else {
          this.lineTo(lonePoint.dx, lonePoint.dy);
        }
      }
      let stopAngle = dart.notNull(startAngle) + dart.notNull(sweepAngle);
      let cosStart = math.cos(startAngle);
      let sinStart = math.sin(startAngle);
      let cosStop = math.cos(stopAngle);
      let sinStop = math.sin(stopAngle);
      if (dart.test(_engine.SPath.nearlyEqual(cosStart, cosStop)) && dart.test(_engine.SPath.nearlyEqual(sinStart, sinStop))) {
        let sweep = sweepAngle[$abs]() * 180.0 / 3.141592653589793;
        if (sweep <= 360 && sweep > 359) {
          let deltaRad = dart.notNull(sweepAngle) < 0 ? -1.0 / 512.0 : 1.0 / 512.0;
          do {
            stopAngle = stopAngle - deltaRad;
            cosStop = math.cos(stopAngle);
            sinStop = math.sin(stopAngle);
          } while (cosStart === cosStop && sinStart === sinStop);
        }
      }
      let dir = dart.notNull(sweepAngle) > 0 ? 0 : 1;
      let endAngle = dart.notNull(startAngle) + dart.notNull(sweepAngle);
      let radiusX = dart.notNull(rect.width) / 2.0;
      let radiusY = dart.notNull(rect.height) / 2.0;
      let px = dart.notNull(rect.center.dx) + radiusX * math.cos(endAngle);
      let py = dart.notNull(rect.center.dy) + radiusY * math.sin(endAngle);
      if (cosStart === cosStop && sinStart === sinStop) {
        if (dart.test(forceMoveTo)) {
          this.moveTo(px, py);
        } else {
          this[_lineToIfNotTooCloseToLastPoint](px, py);
        }
        return;
      }
      let x = cosStart * cosStop + sinStart * sinStop;
      let y = cosStart * sinStop - sinStart * cosStop;
      let absY = y[$abs]();
      if (absY <= 0.000244140625 && x > 0 && (y >= 0 && dir === 0 || y <= 0 && dir === 1)) {
        if (dart.test(forceMoveTo)) {
          this.moveTo(px, py);
        } else {
          this[_lineToIfNotTooCloseToLastPoint](px, py);
        }
        return;
      }
      if (dir === 1) {
        y = -y;
      }
      let quadPoints = C[856] || CT.C856;
      let quadrant = 0;
      if (0 === y) {
        quadrant = 2;
        if (!((x + 1)[$abs]() <= 0.000244140625)) dart.assertFailed(null, I[292], 537, 14, "(x + 1).abs() <= SPath.scalarNearlyZero");
      } else if (0 === x) {
        if (!(absY - 1 <= 0.000244140625)) dart.assertFailed(null, I[292], 540, 14, "(absY - 1) <= SPath.scalarNearlyZero");
        quadrant = y > 0 ? 1 : 3;
      } else {
        if (y < 0) {
          quadrant = quadrant + 2;
        }
        if (x < 0 !== y < 0) {
          quadrant = quadrant + 1;
        }
      }
      let conics = G$.JSArrayOfConic().of([]);
      let conicCount = quadrant;
      for (let i = 0; i < conicCount; i = i + 1) {
        let quadPointIndex = i * 2;
        let p0 = quadPoints[$_get](quadPointIndex);
        let p1 = quadPoints[$_get](quadPointIndex + 1);
        let p2 = quadPoints[$_get](quadPointIndex + 2);
        conics[$add](new _engine.Conic.new(p0.dx, p0.dy, p1.dx, p1.dy, p2.dx, p2.dy, 0.707106781));
      }
      let finalPx = x;
      let finalPy = y;
      let lastQuadrantPoint = quadPoints[$_get](quadrant * 2);
      let dot = x * dart.notNull(lastQuadrantPoint.dx) + y * dart.notNull(lastQuadrantPoint.dy);
      if (dot < 1) {
        let offCurveX = dart.notNull(lastQuadrantPoint.dx) + x;
        let offCurveY = dart.notNull(lastQuadrantPoint.dy) + y;
        let cosThetaOver2 = math.sqrt((1.0 + dot) / 2.0);
        let unscaledLength = math.sqrt(offCurveX * offCurveX + offCurveY * offCurveY);
        if (!(unscaledLength > 0.000244140625)) dart.assertFailed(null, I[292], 580, 14, "unscaledLength > SPath.scalarNearlyZero");
        offCurveX = offCurveX / (cosThetaOver2 * unscaledLength);
        offCurveY = offCurveY / (cosThetaOver2 * unscaledLength);
        if (!dart.test(_engine.SPath.nearlyEqual(offCurveX, lastQuadrantPoint.dx)) || !dart.test(_engine.SPath.nearlyEqual(offCurveY, lastQuadrantPoint.dy))) {
          conics[$add](new _engine.Conic.new(lastQuadrantPoint.dx, lastQuadrantPoint.dy, offCurveX, offCurveY, finalPx, finalPy, cosThetaOver2));
          conicCount = conicCount + 1;
        }
      }
      let scaleX = dart.notNull(rect.width) / 2;
      let ccw = dir === 1;
      let scaleY = dart.notNull(rect.height) / 2;
      let centerX = rect.center.dx;
      let centerY = rect.center.dy;
      for (let conic of conics) {
        let x = conic.p0x;
        let y = ccw ? -dart.notNull(conic.p0y) : conic.p0y;
        conic.p0x = (cosStart * dart.notNull(x) - sinStart * dart.notNull(y)) * scaleX + dart.notNull(centerX);
        conic.p0y = (cosStart * dart.notNull(y) + sinStart * dart.notNull(x)) * scaleY + dart.notNull(centerY);
        x = conic.p1x;
        y = ccw ? -dart.notNull(conic.p1y) : conic.p1y;
        conic.p1x = (cosStart * dart.notNull(x) - sinStart * dart.notNull(y)) * scaleX + dart.notNull(centerX);
        conic.p1y = (cosStart * dart.notNull(y) + sinStart * dart.notNull(x)) * scaleY + dart.notNull(centerY);
        x = conic.p2x;
        y = ccw ? -dart.notNull(conic.p2y) : conic.p2y;
        conic.p2x = (cosStart * dart.notNull(x) - sinStart * dart.notNull(y)) * scaleX + dart.notNull(centerX);
        conic.p2y = (cosStart * dart.notNull(y) + sinStart * dart.notNull(x)) * scaleY + dart.notNull(centerY);
      }
      let firstConicPx = conics[$_get](0).p0x;
      let firstConicPy = conics[$_get](0).p0y;
      if (dart.test(forceMoveTo)) {
        this.moveTo(firstConicPx, firstConicPy);
      } else {
        this[_lineToIfNotTooCloseToLastPoint](firstConicPx, firstConicPy);
      }
      for (let i = 0; i < conicCount; i = i + 1) {
        let conic = conics[$_get](i);
        this.conicTo(conic.p1x, conic.p1y, conic.p2x, conic.p2y, conic.fW);
      }
      this[_resetAfterEdit]();
    }
    [_lineToIfNotTooCloseToLastPoint](px, py) {
      if (px == null) dart.nullFailed(I[292], 628, 47, "px");
      if (py == null) dart.nullFailed(I[292], 628, 58, "py");
      let pointCount = this.pathRef.countPoints();
      if (pointCount !== 0) {
        let lastPoint = this.pathRef.atPoint(dart.notNull(pointCount) - 1);
        let lastPointX = lastPoint.dx;
        let lastPointY = lastPoint.dy;
        if (!dart.test(_engine.SPath.nearlyEqual(px, lastPointX)) || !dart.test(_engine.SPath.nearlyEqual(py, lastPointY))) {
          this.lineTo(px, py);
        }
      }
    }
    arcToPoint(arcEnd, opts) {
      let t$36540;
      if (arcEnd == null) dart.nullFailed(I[292], 657, 15, "arcEnd");
      let radius = opts && 'radius' in opts ? opts.radius : C[528] || CT.C528;
      if (radius == null) dart.nullFailed(I[292], 658, 15, "radius");
      let rotation = opts && 'rotation' in opts ? opts.rotation : 0;
      if (rotation == null) dart.nullFailed(I[292], 659, 12, "rotation");
      let largeArc = opts && 'largeArc' in opts ? opts.largeArc : false;
      if (largeArc == null) dart.nullFailed(I[292], 660, 10, "largeArc");
      let clockwise = opts && 'clockwise' in opts ? opts.clockwise : true;
      if (clockwise == null) dart.nullFailed(I[292], 661, 10, "clockwise");
      if (!dart.test(_engine.offsetIsValid(arcEnd))) dart.assertFailed(null, I[292], 663, 12, "offsetIsValid(arcEnd)");
      if (!dart.test(_engine.radiusIsValid(radius))) dart.assertFailed(null, I[292], 664, 12, "radiusIsValid(radius)");
      this[_injectMoveToIfNeeded]();
      let pointCount = this.pathRef.countPoints();
      let lastPointX = null;
      let lastPointY = null;
      if (pointCount === 0) {
        lastPointX = lastPointY = 0.0;
      } else {
        let pointIndex = (dart.notNull(pointCount) - 1) * 2;
        lastPointX = this.pathRef.points[$_get]((t$36540 = pointIndex, pointIndex = t$36540 + 1, t$36540));
        lastPointY = this.pathRef.points[$_get](pointIndex);
      }
      let x = arcEnd.dx;
      let y = arcEnd.dy;
      let rx = radius.x[$abs]();
      let ry = radius.y[$abs]();
      let isSamePoint = lastPointX == x && lastPointY == y;
      if (isSamePoint || rx[$toInt]() === 0 || ry[$toInt]() === 0) {
        if (rx === 0 || ry === 0) {
          this.lineTo(x, y);
          return;
        }
      }
      let midPointX = (dart.notNull(lastPointX) - dart.notNull(x)) / 2.0;
      let midPointY = (dart.notNull(lastPointY) - dart.notNull(y)) / 2.0;
      let xAxisRotation = 3.141592653589793 * dart.notNull(rotation) / 180.0;
      let cosXAxisRotation = math.cos(xAxisRotation);
      let sinXAxisRotation = math.sin(xAxisRotation);
      let xPrime = cosXAxisRotation * midPointX + sinXAxisRotation * midPointY;
      let yPrime = -sinXAxisRotation * midPointX + cosXAxisRotation * midPointY;
      let rxSquare = rx * rx;
      let rySquare = ry * ry;
      let xPrimeSquare = xPrime * xPrime;
      let yPrimeSquare = yPrime * yPrime;
      let radiiScale = xPrimeSquare / rxSquare + yPrimeSquare / rySquare;
      if (radiiScale > 1) {
        radiiScale = math.sqrt(radiiScale);
        rx = rx * radiiScale;
        ry = ry * radiiScale;
        rxSquare = rx * rx;
        rySquare = ry * ry;
      }
      let unitPts0x = (dart.notNull(lastPointX) * cosXAxisRotation + dart.notNull(lastPointY) * sinXAxisRotation) / rx;
      let unitPts0y = (dart.notNull(lastPointY) * cosXAxisRotation - dart.notNull(lastPointX) * sinXAxisRotation) / ry;
      let unitPts1x = (dart.notNull(x) * cosXAxisRotation + dart.notNull(y) * sinXAxisRotation) / rx;
      let unitPts1y = (dart.notNull(y) * cosXAxisRotation - dart.notNull(x) * sinXAxisRotation) / ry;
      let deltaX = unitPts1x - unitPts0x;
      let deltaY = unitPts1y - unitPts0y;
      let d = deltaX * deltaX + deltaY * deltaY;
      let scaleFactor = math.sqrt(math.max(T$.num(), 1 / d - 0.25, 0.0));
      if (largeArc == clockwise) {
        scaleFactor = -scaleFactor;
      }
      deltaX = deltaX * scaleFactor;
      deltaY = deltaY * scaleFactor;
      let centerPointX = (unitPts0x + unitPts1x) / 2 - deltaY;
      let centerPointY = (unitPts0y + unitPts1y) / 2 + deltaX;
      unitPts0x = unitPts0x - centerPointX;
      unitPts0y = unitPts0y - centerPointY;
      unitPts1x = unitPts1x - centerPointX;
      unitPts1y = unitPts1y - centerPointY;
      let theta1 = math.atan2(unitPts0y, unitPts0x);
      let theta2 = math.atan2(unitPts1y, unitPts1x);
      let thetaArc = theta2 - theta1;
      if (dart.test(clockwise) && thetaArc < 0) {
        thetaArc = thetaArc + 3.141592653589793 * 2.0;
      } else if (!dart.test(clockwise) && thetaArc > 0) {
        thetaArc = thetaArc - 3.141592653589793 * 2.0;
      }
      if (thetaArc[$abs]() < 3.141592653589793 / (1000.0 * 1000.0)) {
        this.lineTo(x, y);
        return;
      }
      let segments = (thetaArc / (2.0 * 3.141592653589793 / 3.0))[$abs]()[$ceil]();
      let thetaWidth = thetaArc / segments;
      let t = math.tan(thetaWidth / 2.0);
      if (!t[$isFinite]) {
        return;
      }
      let w = math.sqrt(0.5 + math.cos(thetaWidth) * 0.5);
      let startTheta = theta1;
      let expectIntegers = dart.test(_engine.SPath.nearlyEqual(3.141592653589793 / 2 - thetaWidth[$abs](), 0.0)) && dart.test(_engine.SPath.isInteger(rx)) && dart.test(_engine.SPath.isInteger(ry)) && dart.test(_engine.SPath.isInteger(x)) && dart.test(_engine.SPath.isInteger(y));
      for (let i = 0; i < segments; i = i + 1) {
        let endTheta = startTheta + thetaWidth;
        let sinEndTheta = _engine.SPath.snapToZero(math.sin(endTheta));
        let cosEndTheta = _engine.SPath.snapToZero(math.cos(endTheta));
        let unitPts1x = dart.notNull(cosEndTheta) + centerPointX;
        let unitPts1y = dart.notNull(sinEndTheta) + centerPointY;
        let unitPts0x = unitPts1x + t * dart.notNull(sinEndTheta);
        let unitPts0y = unitPts1y - t * dart.notNull(cosEndTheta);
        unitPts0x = unitPts0x * rx;
        unitPts0y = unitPts0y * ry;
        unitPts1x = unitPts1x * rx;
        unitPts1y = unitPts1y * ry;
        let xStart = unitPts0x * cosXAxisRotation - unitPts0y * sinXAxisRotation;
        let yStart = unitPts0y * cosXAxisRotation + unitPts0x * sinXAxisRotation;
        let xEnd = unitPts1x * cosXAxisRotation - unitPts1y * sinXAxisRotation;
        let yEnd = unitPts1y * cosXAxisRotation + unitPts1x * sinXAxisRotation;
        if (expectIntegers) {
          xStart = (xStart + 0.5)[$floorToDouble]();
          yStart = (yStart + 0.5)[$floorToDouble]();
          xEnd = (xEnd + 0.5)[$floorToDouble]();
          yEnd = (yEnd + 0.5)[$floorToDouble]();
        }
        this.conicTo(xStart, yStart, xEnd, yEnd, w);
        startTheta = endTheta;
      }
    }
    relativeArcToPoint(arcEndDelta, opts) {
      let t$36540;
      if (arcEndDelta == null) dart.nullFailed(I[292], 847, 15, "arcEndDelta");
      let radius = opts && 'radius' in opts ? opts.radius : C[528] || CT.C528;
      if (radius == null) dart.nullFailed(I[292], 848, 15, "radius");
      let rotation = opts && 'rotation' in opts ? opts.rotation : 0;
      if (rotation == null) dart.nullFailed(I[292], 849, 12, "rotation");
      let largeArc = opts && 'largeArc' in opts ? opts.largeArc : false;
      if (largeArc == null) dart.nullFailed(I[292], 850, 10, "largeArc");
      let clockwise = opts && 'clockwise' in opts ? opts.clockwise : true;
      if (clockwise == null) dart.nullFailed(I[292], 851, 10, "clockwise");
      if (!dart.test(_engine.offsetIsValid(arcEndDelta))) dart.assertFailed(null, I[292], 853, 12, "offsetIsValid(arcEndDelta)");
      if (!dart.test(_engine.radiusIsValid(radius))) dart.assertFailed(null, I[292], 854, 12, "radiusIsValid(radius)");
      let pointCount = this.pathRef.countPoints();
      let lastPointX = null;
      let lastPointY = null;
      if (pointCount === 0) {
        lastPointX = lastPointY = 0.0;
      } else {
        let pointIndex = (dart.notNull(pointCount) - 1) * 2;
        lastPointX = this.pathRef.points[$_get]((t$36540 = pointIndex, pointIndex = t$36540 + 1, t$36540));
        lastPointY = this.pathRef.points[$_get](pointIndex);
      }
      this.arcToPoint(new ui.Offset.new(dart.notNull(lastPointX) + dart.notNull(arcEndDelta.dx), dart.notNull(lastPointY) + dart.notNull(arcEndDelta.dy)), {radius: radius, rotation: rotation, largeArc: largeArc, clockwise: clockwise});
    }
    addOval(oval) {
      if (oval == null) dart.nullFailed(I[292], 880, 24, "oval");
      this[_addOval](oval, 0, 0);
    }
    [_addOval](oval, direction, startIndex) {
      if (oval == null) dart.nullFailed(I[292], 884, 25, "oval");
      if (direction == null) dart.nullFailed(I[292], 884, 35, "direction");
      if (startIndex == null) dart.nullFailed(I[292], 884, 50, "startIndex");
      if (!dart.test(_engine.rectIsValid(oval))) dart.assertFailed(null, I[292], 885, 12, "rectIsValid(oval)");
      if (!(direction !== -1)) dart.assertFailed(null, I[292], 886, 12, "direction != SPathDirection.kUnknown");
      let isOval = this[_hasOnlyMoveTos]();
      let left = oval.left;
      let right = oval.right;
      let centerX = (dart.notNull(left) + dart.notNull(right)) / 2.0;
      let top = oval.top;
      let bottom = oval.bottom;
      let centerY = (dart.notNull(top) + dart.notNull(bottom)) / 2.0;
      if (direction === 0) {
        this.moveTo(right, centerY);
        this.conicTo(right, bottom, centerX, bottom, 0.707106781);
        this.conicTo(left, bottom, left, centerY, 0.707106781);
        this.conicTo(left, top, centerX, top, 0.707106781);
        this.conicTo(right, top, right, centerY, 0.707106781);
      } else {
        this.moveTo(right, centerY);
        this.conicTo(right, top, centerX, top, 0.707106781);
        this.conicTo(left, top, left, centerY, 0.707106781);
        this.conicTo(left, bottom, centerX, bottom, 0.707106781);
        this.conicTo(right, bottom, right, centerY, 0.707106781);
      }
      this.close();
      this.pathRef.setIsOval(isOval, direction === 1, 0);
      this[_resetAfterEdit]();
      if (dart.test(isOval)) {
        this[_firstDirection] = direction;
      } else {
        this[_firstDirection] = -1;
      }
    }
    addArc(oval, startAngle, sweepAngle) {
      if (oval == null) dart.nullFailed(I[292], 931, 23, "oval");
      if (startAngle == null) dart.nullFailed(I[292], 931, 36, "startAngle");
      if (sweepAngle == null) dart.nullFailed(I[292], 931, 55, "sweepAngle");
      if (!dart.test(_engine.rectIsValid(oval))) dart.assertFailed(null, I[292], 932, 12, "rectIsValid(oval)");
      if (0 === sweepAngle) {
        return;
      }
      if (dart.notNull(sweepAngle) >= 6.283185307179586 || dart.notNull(sweepAngle) <= -6.283185307179586) {
        let startOver90 = dart.notNull(startAngle) / (3.141592653589793 / 2.0);
        let startOver90I = (startOver90 + 0.5)[$floorToDouble]();
        let error = startOver90 - startOver90I;
        if (dart.test(_engine.SPath.nearlyEqual(error, 0.0))) {
          let startIndex = startOver90I + 1.0[$modulo](4.0);
          startIndex = startIndex < 0 ? startIndex + 4.0 : startIndex;
          this[_addOval](oval, dart.notNull(sweepAngle) > 0 ? 0 : 1, startIndex[$toInt]());
          return;
        }
      }
      this.arcTo(oval, startAngle, sweepAngle, true);
    }
    addPolygon(points, close) {
      if (points == null) dart.nullFailed(I[292], 965, 35, "points");
      if (close == null) dart.nullFailed(I[292], 965, 48, "close");
      let pointCount = points[$length];
      if (dart.notNull(pointCount) <= 0) {
        return;
      }
      let pointIndex = this.pathRef.growForVerb(0, 0.0);
      this.fLastMoveToIndex = dart.notNull(pointIndex) + 1;
      this.pathRef.setPoint(pointIndex, points[$_get](0).dx, points[$_get](0).dy);
      this.pathRef.growForRepeatedVerb(1, dart.notNull(pointCount) - 1);
      for (let i = 1; i < dart.notNull(pointCount); i = i + 1) {
        this.pathRef.setPoint(dart.notNull(pointIndex) + i, points[$_get](i).dx, points[$_get](i).dy);
      }
      if (dart.test(close)) {
        this.close();
      }
      this[_resetAfterEdit]();
      this[_debugValidate]();
    }
    addRRect(rrect) {
      if (rrect == null) dart.nullFailed(I[292], 988, 26, "rrect");
      this[_addRRect](rrect, 0, 6);
    }
    [_addRRect](rrect, direction, startIndex) {
      if (rrect == null) dart.nullFailed(I[292], 992, 27, "rrect");
      if (direction == null) dart.nullFailed(I[292], 992, 38, "direction");
      if (startIndex == null) dart.nullFailed(I[292], 992, 53, "startIndex");
      if (!dart.test(_engine.rrectIsValid(rrect))) dart.assertFailed(null, I[292], 993, 12, "rrectIsValid(rrect)");
      if (!(direction !== -1)) dart.assertFailed(null, I[292], 994, 12, "direction != SPathDirection.kUnknown");
      let isRRect = this[_hasOnlyMoveTos]();
      let bounds = rrect.outerRect;
      if (dart.test(rrect.isRect) || dart.test(rrect.isEmpty)) {
        this.addRectWithDirection(bounds, direction, ((dart.notNull(startIndex) + 1) / 2)[$truncate]());
      } else if (dart.test(_engine.isRRectOval(rrect))) {
        this[_addOval](bounds, direction, (dart.notNull(startIndex) / 2)[$truncate]());
      } else {
        let left = bounds.left;
        let right = bounds.right;
        let top = bounds.top;
        let bottom = bounds.bottom;
        let width = dart.notNull(right) - dart.notNull(left);
        let height = dart.notNull(bottom) - dart.notNull(top);
        let tlRadiusX = math.max(T$.double(), 0.0, rrect.tlRadiusX);
        let trRadiusX = math.max(T$.double(), 0.0, rrect.trRadiusX);
        let blRadiusX = math.max(T$.double(), 0.0, rrect.blRadiusX);
        let brRadiusX = math.max(T$.double(), 0.0, rrect.brRadiusX);
        let tlRadiusY = math.max(T$.double(), 0.0, rrect.tlRadiusY);
        let trRadiusY = math.max(T$.double(), 0.0, rrect.trRadiusY);
        let blRadiusY = math.max(T$.double(), 0.0, rrect.blRadiusY);
        let brRadiusY = math.max(T$.double(), 0.0, rrect.brRadiusY);
        let scale = _engine._computeMinScale(tlRadiusX, trRadiusX, width, 1.0);
        scale = _engine._computeMinScale(blRadiusX, brRadiusX, width, scale);
        scale = _engine._computeMinScale(tlRadiusY, trRadiusY, height, scale);
        scale = _engine._computeMinScale(blRadiusY, brRadiusY, height, scale);
        this.moveTo(left, dart.notNull(bottom) - dart.notNull(scale) * blRadiusY);
        this.lineTo(left, dart.notNull(top) + dart.notNull(scale) * tlRadiusY);
        this.conicTo(left, top, dart.notNull(left) + dart.notNull(scale) * tlRadiusX, top, 0.707106781);
        this.lineTo(dart.notNull(right) - dart.notNull(scale) * trRadiusX, top);
        this.conicTo(right, top, right, dart.notNull(top) + dart.notNull(scale) * trRadiusY, 0.707106781);
        this.lineTo(right, dart.notNull(bottom) - dart.notNull(scale) * brRadiusY);
        this.conicTo(right, bottom, dart.notNull(right) - dart.notNull(scale) * brRadiusX, bottom, 0.707106781);
        this.lineTo(dart.notNull(left) + dart.notNull(scale) * blRadiusX, bottom);
        this.conicTo(left, bottom, left, dart.notNull(bottom) - dart.notNull(scale) * blRadiusY, 0.707106781);
        this.close();
        this[_firstDirection] = dart.test(isRRect) ? direction : -1;
        this.pathRef.setIsRRect(isRRect, direction === 1, startIndex[$modulo](8), rrect);
      }
      this[_debugValidate]();
    }
    addPath(path, offset, opts) {
      if (path == null) dart.nullFailed(I[292], 1055, 24, "path");
      if (offset == null) dart.nullFailed(I[292], 1055, 40, "offset");
      let matrix4 = opts && 'matrix4' in opts ? opts.matrix4 : null;
      this.addPathWithMode(path, offset.dx, offset.dy, matrix4 == null ? null : _engine.toMatrix32(matrix4), 0);
    }
    addPathWithMode(path, offsetX, offsetY, matrix4, mode) {
      let t$36540, t$36540$, t$36540$0;
      if (path == null) dart.nullFailed(I[292], 1065, 32, "path");
      if (offsetX == null) dart.nullFailed(I[292], 1065, 45, "offsetX");
      if (offsetY == null) dart.nullFailed(I[292], 1065, 61, "offsetY");
      if (mode == null) dart.nullFailed(I[292], 1066, 33, "mode");
      let source = T$9.SurfacePath()[_as](path);
      if (dart.test(source.pathRef.isEmpty)) {
        return;
      }
      if (dart.equals(source.pathRef, this.pathRef)) {
        source = new _engine.SurfacePath.from(this);
      }
      let previousPointCount = this.pathRef.countPoints();
      if (mode === 0 && (matrix4 == null || dart.test(_engine._isSimple2dTransform(matrix4)))) {
        this.pathRef.append(source.pathRef);
      } else {
        let firstVerb = true;
        let iter = new _engine.PathRefIterator.new(source.pathRef);
        let outPts = _native_typed_data.NativeFloat32List.new(8);
        let verb = null;
        while ((verb = iter.next(outPts)) !== 6) {
          switch (verb) {
            case 0:
              {
                let point0X = matrix4 == null ? dart.notNull(outPts[$_get](0)) + dart.notNull(offsetX) : dart.notNull(matrix4[$_get](0)) * (dart.notNull(outPts[$_get](0)) + dart.notNull(offsetX)) + dart.notNull(matrix4[$_get](4)) * (dart.notNull(outPts[$_get](1)) + dart.notNull(offsetY)) + dart.notNull(matrix4[$_get](12));
                let point0Y = matrix4 == null ? dart.notNull(outPts[$_get](1)) + dart.notNull(offsetY) : dart.notNull(matrix4[$_get](1)) * (dart.notNull(outPts[$_get](0)) + dart.notNull(offsetX)) + dart.notNull(matrix4[$_get](5)) * (dart.notNull(outPts[$_get](1)) + dart.notNull(offsetY)) + dart.notNull(matrix4[$_get](13)) + dart.notNull(offsetY);
                if (firstVerb && !dart.test(this.pathRef.isEmpty)) {
                  if (!(mode === 1)) dart.assertFailed(null, I[292], 1103, 22, "mode == SPathAddPathMode.kExtend");
                  this[_injectMoveToIfNeeded]();
                  let lastPointX = null;
                  let lastPointY = null;
                  if (previousPointCount === 0) {
                    lastPointX = lastPointY = 0.0;
                  } else {
                    let listIndex = 2 * (dart.notNull(previousPointCount) - 1);
                    lastPointX = this.pathRef.points[$_get]((t$36540 = listIndex, listIndex = t$36540 + 1, t$36540));
                    lastPointY = this.pathRef.points[$_get](listIndex);
                  }
                  if (dart.notNull(this.fLastMoveToIndex) <= 0 || previousPointCount !== 0 || lastPointX !== point0X || lastPointY !== point0Y) {
                    this.lineTo(outPts[$_get](0), outPts[$_get](1));
                  }
                } else {
                  this.moveTo(outPts[$_get](0), outPts[$_get](1));
                }
                break;
              }
            case 1:
              {
                this.lineTo(outPts[$_get](2), outPts[$_get](3));
                break;
              }
            case 2:
              {
                this[_quadTo](outPts[$_get](2), outPts[$_get](3), outPts[$_get](4), outPts[$_get](5));
                break;
              }
            case 3:
              {
                this.conicTo(outPts[$_get](2), outPts[$_get](3), outPts[$_get](4), outPts[$_get](5), iter.conicWeight);
                break;
              }
            case 4:
              {
                this.cubicTo(outPts[$_get](2), outPts[$_get](3), outPts[$_get](4), outPts[$_get](5), outPts[$_get](6), outPts[$_get](7));
                break;
              }
            case 5:
              {
                this.close();
              }
          }
          firstVerb = false;
        }
      }
      if (dart.notNull(source.fLastMoveToIndex) >= 0) {
        this.fLastMoveToIndex = dart.notNull(previousPointCount) + dart.notNull(source.fLastMoveToIndex);
      }
      let newPointCount = this.pathRef.countPoints();
      let points = this.pathRef.points;
      for (let p = dart.notNull(previousPointCount) * 2; p < dart.notNull(newPointCount) * 2; p = p + 2) {
        if (matrix4 == null) {
          t$36540$ = p;
          points[$_set](t$36540$, dart.notNull(points[$_get](t$36540$)) + dart.notNull(offsetX));
          t$36540$0 = p + 1;
          points[$_set](t$36540$0, dart.notNull(points[$_get](t$36540$0)) + dart.notNull(offsetY));
        } else {
          let x = points[$_get](p);
          let y = points[$_get](p + 1);
          points[$_set](p, dart.notNull(matrix4[$_get](0)) * dart.notNull(x) + dart.notNull(matrix4[$_get](4)) * dart.notNull(y) + (dart.notNull(matrix4[$_get](12)) + dart.notNull(offsetX)));
          points[$_set](p + 1, dart.notNull(matrix4[$_get](1)) * dart.notNull(x) + dart.notNull(matrix4[$_get](5)) * dart.notNull(y) + (dart.notNull(matrix4[$_get](13)) + dart.notNull(offsetY)));
        }
      }
      this[_resetAfterEdit]();
    }
    extendWithPath(path, offset, opts) {
      if (path == null) dart.nullFailed(I[292], 1170, 31, "path");
      if (offset == null) dart.nullFailed(I[292], 1170, 47, "offset");
      let matrix4 = opts && 'matrix4' in opts ? opts.matrix4 : null;
      if (!dart.test(_engine.offsetIsValid(offset))) dart.assertFailed(null, I[292], 1171, 12, "offsetIsValid(offset)");
      this.addPathWithMode(path, offset.dx, offset.dy, matrix4 == null ? null : _engine.toMatrix32(matrix4), 1);
    }
    contains(point) {
      if (point == null) dart.nullFailed(I[292], 1188, 27, "point");
      if (!dart.test(_engine.offsetIsValid(point))) dart.assertFailed(null, I[292], 1189, 12, "offsetIsValid(point)");
      if (dart.test(this.pathRef.isEmpty)) {
        return false;
      }
      let bounds = this.getBounds();
      let x = point.dx;
      let y = point.dy;
      if (dart.notNull(x) < dart.notNull(bounds.left) || dart.notNull(y) < dart.notNull(bounds.top) || dart.notNull(x) > dart.notNull(bounds.right) || dart.notNull(y) > dart.notNull(bounds.bottom)) {
        return false;
      }
      let windings = new _engine.PathWinding.new(this.pathRef, point.dx, point.dy);
      let evenOddFill = ui.PathFillType.evenOdd == this[_fillType$];
      let w = windings.w;
      if (evenOddFill) {
        w = dart.notNull(w) & 1;
      }
      if (w !== 0) {
        return true;
      }
      let onCurveCount = windings.onCurveCount;
      if (dart.notNull(onCurveCount) <= 1) {
        return onCurveCount !== 0;
      }
      if ((dart.notNull(onCurveCount) & 1) !== 0 || evenOddFill) {
        return (dart.notNull(onCurveCount) & 1) !== 0;
      }
      let iter = new _engine.PathIterator.new(this.pathRef, true);
      let buffer = _native_typed_data.NativeFloat32List.new(8 + 10);
      let tangents = G$.JSArrayOfOffset().of([]);
      let done = false;
      do {
        let oldCount = tangents[$length];
        switch (iter.next(buffer)) {
          case 0:
          case 5:
            {
              break;
            }
          case 1:
            {
              _engine.tangentLine(buffer, x, y, tangents);
              break;
            }
          case 2:
            {
              _engine.tangentQuad(buffer, x, y, tangents);
              break;
            }
          case 3:
            {
              _engine.tangentConic(buffer, x, y, iter.conicWeight, tangents);
              break;
            }
          case 4:
            {
              _engine.tangentCubic(buffer, x, y, tangents);
              break;
            }
          case 6:
            {
              done = true;
            }
        }
        if (dart.notNull(tangents[$length]) > dart.notNull(oldCount)) {
          let last = dart.notNull(tangents[$length]) - 1;
          let tangent = tangents[$_get](last);
          if (dart.test(_engine.SPath.nearlyEqual(_engine.lengthSquaredOffset(tangent), 0.0))) {
            tangents[$removeAt](last);
          } else {
            for (let index = 0; index < last; index = index + 1) {
              let test = tangents[$_get](index);
              let crossProduct = dart.notNull(test.dx) * dart.notNull(tangent.dy) - dart.notNull(test.dy) * dart.notNull(tangent.dx);
              if (dart.test(_engine.SPath.nearlyEqual(crossProduct, 0.0)) && dart.notNull(_engine.SPath.scalarSignedAsInt(dart.notNull(tangent.dx) * dart.notNull(test.dx))) <= 0 && dart.notNull(_engine.SPath.scalarSignedAsInt(dart.notNull(tangent.dy) * dart.notNull(test.dy))) <= 0) {
                let offset = tangents[$removeAt](last);
                if (index !== tangents[$length]) {
                  tangents[$_set](index, offset);
                }
                break;
              }
            }
          }
        }
      } while (!done);
      return tangents[$isNotEmpty];
    }
    shift(offset) {
      if (offset == null) dart.nullFailed(I[292], 1269, 31, "offset");
      return new _engine.SurfacePath.shiftedFrom(this, offset.dx, offset.dy);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[292], 1275, 37, "matrix4");
      let newPath = new _engine.SurfacePath.from(this);
      newPath[_transform$](matrix4);
      return newPath;
    }
    [_transform$](m) {
      if (m == null) dart.nullFailed(I[292], 1281, 31, "m");
      this.pathRef.startEdit();
      let pointCount = this.pathRef.countPoints();
      let points = this.pathRef.points;
      let len = dart.notNull(pointCount) * 2;
      for (let i = 0; i < len; i = i + 2) {
        let x = points[$_get](i);
        let y = points[$_get](i + 1);
        let w = 1.0 / (dart.notNull(m[$_get](3)) * dart.notNull(x) + dart.notNull(m[$_get](7)) * dart.notNull(y) + dart.notNull(m[$_get](15)));
        let transformedX = (dart.notNull(m[$_get](0)) * dart.notNull(x) + dart.notNull(m[$_get](4)) * dart.notNull(y) + dart.notNull(m[$_get](12))) * w;
        let transformedY = (dart.notNull(m[$_get](1)) * dart.notNull(x) + dart.notNull(m[$_get](5)) * dart.notNull(y) + dart.notNull(m[$_get](13))) * w;
        points[$_set](i, transformedX);
        points[$_set](i + 1, transformedY);
      }
      this[_convexityType] = -1;
    }
    setConvexityType(value) {
      if (value == null) dart.nullFailed(I[292], 1299, 29, "value");
      this[_convexityType] = value;
    }
    [_setComputedConvexity](value) {
      if (value == null) dart.nullFailed(I[292], 1303, 33, "value");
      if (!(value !== -1)) dart.assertFailed(null, I[292], 1304, 12, "value != SPathConvexityType.kUnknown");
      this.setConvexityType(value);
      return value;
    }
    get convexityType() {
      if (this[_convexityType] !== -1) {
        return this[_convexityType];
      }
      return this[_internalGetConvexity]();
    }
    getConvexityTypeOrUnknown() {
      return this[_convexityType];
    }
    get isConvex() {
      return 0 === this.convexityType;
    }
    [_internalGetConvexity]() {
      let pts = _native_typed_data.NativeFloat32List.new(20);
      let iter = new _engine.PathIterator.new(this.pathRef, true);
      let pointCount = this.pathRef.countPoints();
      if (0 < dart.notNull(this.fLastMoveToIndex) && dart.notNull(this.fLastMoveToIndex) < dart.notNull(pointCount)) {
        pointCount = this.fLastMoveToIndex;
      }
      if (dart.notNull(pointCount) > 3) {
        let pointIndex = 0;
        while (0 === iter.next(pts)) {
          pointIndex = pointIndex + 1;
        }
        pointIndex = pointIndex - 1;
        let convexity = _engine.Convexicator.bySign(this.pathRef, pointIndex, dart.notNull(pointCount) - pointIndex);
        if (1 === convexity) {
          this.setConvexityType(1);
          return 1;
        } else if (-1 === convexity) {
          return -1;
        }
        iter = new _engine.PathIterator.new(this.pathRef, true);
      } else if (!dart.test(this.pathRef.isFinite)) {
        return -1;
      }
      let contourCount = 0;
      let count = null;
      let state = new _engine.Convexicator.new();
      let verb = null;
      while ((verb = iter.next(pts)) !== 6) {
        switch (verb) {
          case 0:
            {
              if ((contourCount = contourCount + 1) > 1) {
                return this[_setComputedConvexity](1);
              }
              state.setMovePt(pts[$_get](0), pts[$_get](1));
              count = 0;
              break;
            }
          case 1:
            {
              count = 1;
              break;
            }
          case 2:
            {
              count = 2;
              break;
            }
          case 3:
            {
              count = 2;
              break;
            }
          case 4:
            {
              count = 3;
              break;
            }
          case 5:
            {
              if (!dart.test(state.close())) {
                if (!dart.test(state.isFinite)) {
                  return -1;
                }
                return this[_setComputedConvexity](1);
              }
              count = 0;
              break;
            }
          default:
            {
              return this[_setComputedConvexity](1);
            }
        }
        let len = dart.notNull(count) * 2;
        for (let i = 2; i <= len; i = i + 2) {
          if (!dart.test(state.addPoint(pts[$_get](i), pts[$_get](i + 1)))) {
            if (!dart.test(state.isFinite)) {
              return -1;
            }
            return this[_setComputedConvexity](1);
          }
        }
      }
      if (this[_firstDirection] === -1) {
        if (state.firstDirection === -1 && !dart.test(this.pathRef.getBounds().isEmpty)) {
          return this[_setComputedConvexity](dart.notNull(state.reversals) < 3 ? 0 : 1);
        }
        this[_firstDirection] = state.firstDirection;
      }
      this[_setComputedConvexity](0);
      return this[_convexityType];
    }
    getBounds() {
      if (this.pathRef.isRRect !== -1 || this.pathRef.isOval !== -1) {
        return this.pathRef.getBounds();
      }
      if (!dart.test(this.pathRef.fBoundsIsDirty) && this.pathRef.cachedBounds != null) {
        return dart.nullCheck(this.pathRef.cachedBounds);
      }
      let ltrbInitialized = false;
      let left = 0.0;
      let top = 0.0;
      let right = 0.0;
      let bottom = 0.0;
      let minX = 0.0;
      let maxX = 0.0;
      let minY = 0.0;
      let maxY = 0.0;
      let iter = new _engine.PathRefIterator.new(this.pathRef);
      let points = this.pathRef.points;
      let verb = null;
      let cubicBounds = null;
      let quadBounds = null;
      let conicBounds = null;
      while ((verb = iter.nextIndex()) !== 6) {
        let pIndex = iter.iterIndex;
        switch (verb) {
          case 0:
            {
              minX = maxX = points[$_get](pIndex);
              minY = maxY = points[$_get](dart.notNull(pIndex) + 1);
              break;
            }
          case 1:
            {
              minX = maxX = points[$_get](dart.notNull(pIndex) + 2);
              minY = maxY = points[$_get](dart.notNull(pIndex) + 3);
              break;
            }
          case 2:
            {
              quadBounds == null ? quadBounds = new _engine.QuadBounds.new() : null;
              quadBounds.calculateBounds(points, pIndex);
              minX = quadBounds.minX;
              minY = quadBounds.minY;
              maxX = quadBounds.maxX;
              maxY = quadBounds.maxY;
              break;
            }
          case 3:
            {
              conicBounds == null ? conicBounds = new _engine.ConicBounds.new() : null;
              conicBounds.calculateBounds(points, iter.conicWeight, pIndex);
              minX = conicBounds.minX;
              minY = conicBounds.minY;
              maxX = conicBounds.maxX;
              maxY = conicBounds.maxY;
              break;
            }
          case 4:
            {
              cubicBounds == null ? cubicBounds = new _engine.CubicBounds.new() : null;
              cubicBounds.calculateBounds(points, pIndex);
              minX = cubicBounds.minX;
              minY = cubicBounds.minY;
              maxX = cubicBounds.maxX;
              maxY = cubicBounds.maxY;
            }
        }
        if (!ltrbInitialized) {
          left = minX;
          right = maxX;
          top = minY;
          bottom = maxY;
          ltrbInitialized = true;
        } else {
          left = math.min(T$.double(), left, minX);
          right = math.max(T$.double(), right, maxX);
          top = math.min(T$.double(), top, minY);
          bottom = math.max(T$.double(), bottom, maxY);
        }
      }
      let newBounds = ltrbInitialized ? new ui.Rect.fromLTRB(left, top, right, bottom) : ui.Rect.zero;
      this.pathRef.getBounds();
      this.pathRef.cachedBounds = newBounds;
      return newBounds;
    }
    computeMetrics(opts) {
      let forceClosed = opts && 'forceClosed' in opts ? opts.forceClosed : false;
      if (forceClosed == null) dart.nullFailed(I[292], 1503, 43, "forceClosed");
      return new _engine.SurfacePathMetrics.new(this.pathRef, forceClosed);
    }
    toRoundedRect() {
      return this.pathRef.getRRect();
    }
    toRect() {
      return this.pathRef.getRect();
    }
    toStraightLine() {
      return this.pathRef.getStraightLine();
    }
    toCircle() {
      return this.pathRef.isOval === -1 ? null : this.pathRef.getBounds();
    }
    get isEmpty() {
      return 0 === this.pathRef.countVerbs();
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        let sb = new core.StringBuffer.new();
        sb.write("Path(");
        let iter = new _engine.PathRefIterator.new(this.pathRef);
        let points = this.pathRef.points;
        let verb = null;
        while ((verb = iter.nextIndex()) !== 6) {
          let pIndex = iter.iterIndex;
          switch (verb) {
            case 0:
              {
                sb.write("MoveTo(" + dart.str(points[$_get](pIndex)) + ", " + dart.str(points[$_get](dart.notNull(pIndex) + 1)) + ")");
                break;
              }
            case 1:
              {
                sb.write("LineTo(" + dart.str(points[$_get](dart.notNull(pIndex) + 2)) + ", " + dart.str(points[$_get](dart.notNull(pIndex) + 3)) + ")");
                break;
              }
            case 2:
              {
                sb.write("Quad(" + dart.str(points[$_get](dart.notNull(pIndex) + 2)) + ", " + dart.str(points[$_get](dart.notNull(pIndex) + 3)) + "," + " " + dart.str(points[$_get](dart.notNull(pIndex) + 3)) + ", " + dart.str(points[$_get](dart.notNull(pIndex) + 4)) + ")");
                break;
              }
            case 3:
              {
                sb.write("Conic(" + dart.str(points[$_get](dart.notNull(pIndex) + 2)) + ", " + dart.str(points[$_get](dart.notNull(pIndex) + 3)) + "," + " " + dart.str(points[$_get](dart.notNull(pIndex) + 3)) + ", " + dart.str(points[$_get](dart.notNull(pIndex) + 4)) + ", w = " + dart.str(iter.conicWeight) + ")");
                break;
              }
            case 4:
              {
                sb.write("Cubic(" + dart.str(points[$_get](dart.notNull(pIndex) + 2)) + ", " + dart.str(points[$_get](dart.notNull(pIndex) + 3)) + "," + " " + dart.str(points[$_get](dart.notNull(pIndex) + 3)) + ", " + dart.str(points[$_get](dart.notNull(pIndex) + 4)) + ", " + " " + dart.str(points[$_get](dart.notNull(pIndex) + 5)) + ", " + dart.str(points[$_get](dart.notNull(pIndex) + 6)) + ")");
                break;
              }
            case 5:
              {
                sb.write("Close()");
              }
          }
          if (iter.peek() !== 6) {
            sb.write(" ");
          }
        }
        sb.write(")");
        result = dart.toString(sb);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[292], 1549, 12, "() {\n      final StringBuffer sb = StringBuffer();\n      sb.write('Path(');\n      final PathRefIterator iter = PathRefIterator(pathRef);\n      final Float32List points = pathRef.points;\n      int verb;\n      while ((verb = iter.nextIndex()) != SPath.kDoneVerb) {\n        final int pIndex = iter.iterIndex;\n        switch (verb) {\n          case SPath.kMoveVerb:\n            sb.write('MoveTo(${points[pIndex]}, ${points[pIndex + 1]})');\n          case SPath.kLineVerb:\n            sb.write('LineTo(${points[pIndex + 2]}, ${points[pIndex + 3]})');\n          case SPath.kQuadVerb:\n            sb.write('Quad(${points[pIndex + 2]}, ${points[pIndex + 3]},'\n                ' ${points[pIndex + 3]}, ${points[pIndex + 4]})');\n          case SPath.kConicVerb:\n            sb.write('Conic(${points[pIndex + 2]}, ${points[pIndex + 3]},'\n                ' ${points[pIndex + 3]}, ${points[pIndex + 4]}, w = ${iter.conicWeight})');\n          case SPath.kCubicVerb:\n            sb.write('Cubic(${points[pIndex + 2]}, ${points[pIndex + 3]},'\n                ' ${points[pIndex + 3]}, ${points[pIndex + 4]}, '\n                ' ${points[pIndex + 5]}, ${points[pIndex + 6]})');\n          case SPath.kCloseVerb:\n            sb.write('Close()');\n        }\n        if (iter.peek() != SPath.kDoneVerb) {\n          sb.write(' ');\n        }\n      }\n      sb.write(')');\n      result = sb.toString();\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.SurfacePath.new = function() {
    this[_fillType$] = ui.PathFillType.nonZero;
    this[fLastMoveToIndex] = 0;
    this[_convexityType] = -1;
    this[_firstDirection] = -1;
    this[pathRef] = new _engine.PathRef.new();
    this[_resetFields]();
  }).prototype = _engine.SurfacePath.prototype;
  (_engine.SurfacePath.from = function(source) {
    let t$36540;
    if (source == null) dart.nullFailed(I[292], 30, 32, "source");
    this[_fillType$] = ui.PathFillType.nonZero;
    this[fLastMoveToIndex] = 0;
    this[_convexityType] = -1;
    this[_firstDirection] = -1;
    this[pathRef] = (t$36540 = new _engine.PathRef.new(), (() => {
      t$36540.copy(source.pathRef, 0, 0);
      return t$36540;
    })());
    this[_copyFields](source);
  }).prototype = _engine.SurfacePath.prototype;
  (_engine.SurfacePath.shiftedFrom = function(source, offsetX, offsetY) {
    if (source == null) dart.nullFailed(I[292], 36, 39, "source");
    if (offsetX == null) dart.nullFailed(I[292], 36, 54, "offsetX");
    if (offsetY == null) dart.nullFailed(I[292], 36, 70, "offsetY");
    this[_fillType$] = ui.PathFillType.nonZero;
    this[fLastMoveToIndex] = 0;
    this[_convexityType] = -1;
    this[_firstDirection] = -1;
    this[pathRef] = new _engine.PathRef.shiftedFrom(source.pathRef, offsetX, offsetY);
    this[_copyFields](source);
  }).prototype = _engine.SurfacePath.prototype;
  (_engine.SurfacePath.shallowCopy = function(source) {
    if (source == null) dart.nullFailed(I[292], 41, 39, "source");
    this[_fillType$] = ui.PathFillType.nonZero;
    this[fLastMoveToIndex] = 0;
    this[_convexityType] = -1;
    this[_firstDirection] = -1;
    this[pathRef] = new _engine.PathRef.shallowCopy(source.pathRef);
    this[_copyFields](source);
  }).prototype = _engine.SurfacePath.prototype;
  dart.addRtiResources(_engine.SurfacePath, ["_engine|SurfacePath", "ui|Path"]);
  dart.setMethodSignature(_engine.SurfacePath, () => dart.global.Object.setPrototypeOf({
    [_resetFields]: T$.VoidTovoid(),
    [_resetAfterEdit]: T$.VoidTovoid(),
    [_copyFields]: T$11.SurfacePathTovoid(),
    isInterpolatable: T$11.SurfacePathTobool(),
    interpolate: T$11.SurfacePathAnddoubleAndSurfacePathTobool(),
    reset: T$.VoidTovoid(),
    rewind: T$.VoidTovoid(),
    [_debugValidate]: T$.VoidTovoid(),
    isLine: T$11.Float32ListTobool(),
    moveTo: T$9.doubleAnddoubleTovoid(),
    relativeMoveTo: T$9.doubleAnddoubleTovoid(),
    [_injectMoveToIfNeeded]: T$.VoidTovoid(),
    lineTo: T$9.doubleAnddoubleTovoid(),
    relativeLineTo: T$9.doubleAnddoubleTovoid(),
    quadraticBezierTo: T$10.doubleAnddoubleAnddouble__Tovoid$3(),
    relativeQuadraticBezierTo: T$10.doubleAnddoubleAnddouble__Tovoid$3(),
    [_quadTo]: T$10.doubleAnddoubleAnddouble__Tovoid$3(),
    conicTo: T$10.doubleAnddoubleAnddouble__Tovoid$1(),
    relativeConicTo: T$10.doubleAnddoubleAnddouble__Tovoid$1(),
    cubicTo: T$10.doubleAnddoubleAnddouble__Tovoid$2(),
    relativeCubicTo: T$10.doubleAnddoubleAnddouble__Tovoid$2(),
    close: T$.VoidTovoid(),
    addRect: T$9.RectTovoid(),
    [_hasOnlyMoveTos]: T$.VoidTobool(),
    addRectWithDirection: T$11.RectAndintAndintTovoid(),
    arcTo: T$10.RectAnddoubleAnddouble__Tovoid$2(),
    [_lineToIfNotTooCloseToLastPoint]: T$9.doubleAnddoubleTovoid(),
    arcToPoint: T$10.Offset__Tovoid(),
    relativeArcToPoint: T$10.Offset__Tovoid(),
    addOval: T$9.RectTovoid(),
    [_addOval]: T$11.RectAndintAndintTovoid(),
    addArc: T$10.RectAnddoubleAnddoubleTovoid(),
    addPolygon: T$10.ListOfOffsetAndboolTovoid(),
    addRRect: T$9.RRectTovoid(),
    [_addRRect]: T$11.RRectAndintAndintTovoid(),
    addPath: T$10.PathAndOffset__Tovoid(),
    addPathWithMode: T$11.PathAnddoubleAnddouble__Tovoid(),
    extendWithPath: T$10.PathAndOffset__Tovoid(),
    contains: T$8.OffsetTobool(),
    shift: T$11.OffsetToSurfacePath(),
    transform: T$11.Float64ListToSurfacePath(),
    [_transform$]: T$9.Float64ListTovoid(),
    setConvexityType: T$.intTovoid(),
    [_setComputedConvexity]: T$.intToint(),
    getConvexityTypeOrUnknown: T$.VoidToint(),
    [_internalGetConvexity]: T$.VoidToint(),
    getBounds: T$9.VoidToRect$1(),
    computeMetrics: T$11.__ToSurfacePathMetrics(),
    toRoundedRect: T$11.VoidToRRectN(),
    toRect: T$11.VoidToRectN(),
    toStraightLine: T$11.VoidToRectN(),
    toCircle: T$11.VoidToRectN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SurfacePath))));
  dart.setGetterSignature(_engine.SurfacePath, () => dart.global.Object.setPrototypeOf({
    fillType: T$8.PathFillType(),
    isLastContourClosed: T$.bool(),
    isFinite: T$.bool(),
    convexityType: T$.int(),
    isConvex: T$.bool(),
    isEmpty: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SurfacePath))));
  dart.setSetterSignature(_engine.SurfacePath, () => dart.global.Object.setPrototypeOf({fillType: T$8.PathFillType()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.SurfacePath))));
  dart.setLibraryUri(_engine.SurfacePath, I[220]);
  dart.setFieldSignature(_engine.SurfacePath, () => dart.global.Object.setPrototypeOf({
    pathRef: {type: T$11.PathRef(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_fillType$]: {type: T$8.PathFillType(), isConst: false, isFinal: false, libraryUri: I[198]},
    fLastMoveToIndex: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_convexityType]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_firstDirection]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfacePath))));
  dart.setStaticFieldSignature(_engine.SurfacePath, () => ['kInitialLastMoveToIndexValue']);
  dart.defineExtensionMethods(_engine.SurfacePath, ['toString']);
  dart.defineLazy(_engine.SurfacePath, {
    /*_engine.SurfacePath.kInitialLastMoveToIndexValue*/get kInitialLastMoveToIndexValue() {
      return 0;
    }
  }, false);
  var pathRef$ = dart.privateName(_engine, "PathIterator.pathRef");
  var _needClose = dart.privateName(_engine, "_needClose");
  var _segmentState = dart.privateName(_engine, "_segmentState");
  var _conicWeightIndex = dart.privateName(_engine, "_conicWeightIndex");
  var _lastPointX = dart.privateName(_engine, "_lastPointX");
  var _lastPointY = dart.privateName(_engine, "_lastPointY");
  var _moveToX = dart.privateName(_engine, "_moveToX");
  var _moveToY = dart.privateName(_engine, "_moveToY");
  var _verbIndex = dart.privateName(_engine, "_verbIndex");
  var _pointIndex = dart.privateName(_engine, "_pointIndex");
  var _forceClose = dart.privateName(_engine, "_forceClose");
  var _verbCount = dart.privateName(_engine, "_verbCount");
  var _autoClose = dart.privateName(_engine, "_autoClose");
  var _constructMoveTo = dart.privateName(_engine, "_constructMoveTo");
  _engine.PathIterator = class PathIterator extends core.Object {
    get pathRef() {
      return this[pathRef$];
    }
    set pathRef(value) {
      super.pathRef = value;
    }
    static ['_#new#tearOff'](pathRef, forceClose) {
      if (pathRef == null) dart.nullFailed(I[293], 11, 21, "pathRef");
      if (forceClose == null) dart.nullFailed(I[293], 11, 35, "forceClose");
      return new _engine.PathIterator.new(pathRef, forceClose);
    }
    get pathVerbIndex() {
      return this[_verbIndex];
    }
    get conicWeightIndex() {
      return this[_conicWeightIndex];
    }
    isClosedContour() {
      let t$36540;
      if (this[_verbCount] === 0 || this[_verbIndex] == this[_verbCount]) {
        return false;
      }
      if (dart.test(this[_forceClose])) {
        return true;
      }
      let verbIndex = 0;
      if (this.pathRef.atVerb(verbIndex) === 0) {
        verbIndex = verbIndex + 1;
      }
      while (verbIndex < dart.notNull(this[_verbCount])) {
        let verb = this.pathRef.atVerb((t$36540 = verbIndex, verbIndex = t$36540 + 1, t$36540));
        if (0 === verb) {
          break;
        }
        if (5 === verb) {
          return true;
        }
      }
      return false;
    }
    [_autoClose](outPts) {
      if (outPts == null) dart.nullFailed(I[293], 67, 30, "outPts");
      if (this[_lastPointX] != this[_moveToX] || this[_lastPointY] != this[_moveToY]) {
        if (this[_lastPointX][$isNaN] || this[_lastPointY][$isNaN] || this[_moveToX][$isNaN] || this[_moveToY][$isNaN]) {
          return 5;
        }
        outPts[$_set](0, this[_lastPointX]);
        outPts[$_set](1, this[_lastPointY]);
        outPts[$_set](2, this[_moveToX]);
        outPts[$_set](3, this[_moveToY]);
        this[_lastPointX] = this[_moveToX];
        this[_lastPointY] = this[_moveToY];
        return 1;
      } else {
        outPts[$_set](0, this[_moveToX]);
        outPts[$_set](1, this[_moveToY]);
        return 5;
      }
    }
    [_constructMoveTo]() {
      if (this[_segmentState] === 1) {
        this[_segmentState] = 2;
        return new ui.Offset.new(this[_moveToX], this[_moveToY]);
      }
      return new ui.Offset.new(this.pathRef.points[$_get](dart.notNull(this[_pointIndex]) - 2), this.pathRef.points[$_get](dart.notNull(this[_pointIndex]) - 1));
    }
    peek() {
      if (dart.notNull(this[_verbIndex]) < dart.notNull(this.pathRef.countVerbs())) {
        return this.pathRef.atVerb(this[_verbIndex]);
      }
      if (dart.test(this[_needClose]) && this[_segmentState] === 2) {
        return this[_lastPointX] != this[_moveToX] || this[_lastPointY] != this[_moveToY] ? 1 : 5;
      }
      return 6;
    }
    next(outPts) {
      let t$36540, t$36540$, t$36540$0, t$36540$1, t$36540$2, t$36540$3, t$36540$4, t$36540$5, t$36542, t$36541, t$36540$6, t$36540$7, t$36542$, t$36541$, t$36540$8, t$36540$9, t$36540$10, t$36540$11, t$36542$0, t$36541$0, t$36540$12, t$36540$13, t$36542$1, t$36541$1, t$36540$14, t$36540$15, t$36540$16, t$36540$17, t$36540$18, t$36540$19, t$36542$2, t$36541$2, t$36540$20, t$36540$21, t$36542$3, t$36541$3, t$36540$22;
      if (outPts == null) dart.nullFailed(I[293], 116, 24, "outPts");
      if (this[_verbIndex] == this.pathRef.countVerbs()) {
        if (dart.test(this[_needClose]) && this[_segmentState] === 2) {
          if (1 === this[_autoClose](outPts)) {
            return 1;
          }
          this[_needClose] = false;
          return 5;
        }
        return 6;
      }
      let verb = this.pathRef.atVerb((t$36540 = this[_verbIndex], this[_verbIndex] = dart.notNull(t$36540) + 1, t$36540));
      switch (verb) {
        case 0:
          {
            if (dart.test(this[_needClose])) {
              this[_verbIndex] = dart.notNull(this[_verbIndex]) - 1;
              let autoVerb = this[_autoClose](outPts);
              if (autoVerb === 5) {
                this[_needClose] = false;
              }
              return autoVerb;
            }
            if (this[_verbIndex] == this[_verbCount]) {
              return 6;
            }
            let offsetX = this.pathRef.points[$_get]((t$36540$ = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$) + 1, t$36540$));
            let offsetY = this.pathRef.points[$_get]((t$36540$0 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$0) + 1, t$36540$0));
            this[_moveToX] = offsetX;
            this[_moveToY] = offsetY;
            outPts[$_set](0, offsetX);
            outPts[$_set](1, offsetY);
            this[_segmentState] = 1;
            this[_lastPointX] = this[_moveToX];
            this[_lastPointY] = this[_moveToY];
            this[_needClose] = this[_forceClose];
            break;
          }
        case 1:
          {
            let start = this[_constructMoveTo]();
            let offsetX = this.pathRef.points[$_get]((t$36540$1 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$1) + 1, t$36540$1));
            let offsetY = this.pathRef.points[$_get]((t$36540$2 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$2) + 1, t$36540$2));
            outPts[$_set](0, start.dx);
            outPts[$_set](1, start.dy);
            outPts[$_set](2, offsetX);
            outPts[$_set](3, offsetY);
            this[_lastPointX] = offsetX;
            this[_lastPointY] = offsetY;
            break;
          }
        case 3:
          {
            this[_conicWeightIndex] = dart.notNull(this[_conicWeightIndex]) + 1;
            let start = this[_constructMoveTo]();
            outPts[$_set](0, start.dx);
            outPts[$_set](1, start.dy);
            outPts[$_set](2, this.pathRef.points[$_get]((t$36540$3 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$3) + 1, t$36540$3)));
            outPts[$_set](3, this.pathRef.points[$_get]((t$36540$4 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$4) + 1, t$36540$4)));
            this[_lastPointX] = (t$36540$6 = outPts, t$36541 = 4, t$36542 = this.pathRef.points[$_get]((t$36540$5 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$5) + 1, t$36540$5)), t$36540$6[$_set](t$36541, t$36542), t$36542);
            this[_lastPointY] = (t$36540$8 = outPts, t$36541$ = 5, t$36542$ = this.pathRef.points[$_get]((t$36540$7 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$7) + 1, t$36540$7)), t$36540$8[$_set](t$36541$, t$36542$), t$36542$);
            break;
          }
        case 2:
          {
            let start = this[_constructMoveTo]();
            outPts[$_set](0, start.dx);
            outPts[$_set](1, start.dy);
            outPts[$_set](2, this.pathRef.points[$_get]((t$36540$9 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$9) + 1, t$36540$9)));
            outPts[$_set](3, this.pathRef.points[$_get]((t$36540$10 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$10) + 1, t$36540$10)));
            this[_lastPointX] = (t$36540$12 = outPts, t$36541$0 = 4, t$36542$0 = this.pathRef.points[$_get]((t$36540$11 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$11) + 1, t$36540$11)), t$36540$12[$_set](t$36541$0, t$36542$0), t$36542$0);
            this[_lastPointY] = (t$36540$14 = outPts, t$36541$1 = 5, t$36542$1 = this.pathRef.points[$_get]((t$36540$13 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$13) + 1, t$36540$13)), t$36540$14[$_set](t$36541$1, t$36542$1), t$36542$1);
            break;
          }
        case 4:
          {
            let start = this[_constructMoveTo]();
            outPts[$_set](0, start.dx);
            outPts[$_set](1, start.dy);
            outPts[$_set](2, this.pathRef.points[$_get]((t$36540$15 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$15) + 1, t$36540$15)));
            outPts[$_set](3, this.pathRef.points[$_get]((t$36540$16 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$16) + 1, t$36540$16)));
            outPts[$_set](4, this.pathRef.points[$_get]((t$36540$17 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$17) + 1, t$36540$17)));
            outPts[$_set](5, this.pathRef.points[$_get]((t$36540$18 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$18) + 1, t$36540$18)));
            this[_lastPointX] = (t$36540$20 = outPts, t$36541$2 = 6, t$36542$2 = this.pathRef.points[$_get]((t$36540$19 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$19) + 1, t$36540$19)), t$36540$20[$_set](t$36541$2, t$36542$2), t$36542$2);
            this[_lastPointY] = (t$36540$22 = outPts, t$36541$3 = 7, t$36542$3 = this.pathRef.points[$_get]((t$36540$21 = this[_pointIndex], this[_pointIndex] = dart.notNull(t$36540$21) + 1, t$36540$21)), t$36540$22[$_set](t$36541$3, t$36542$3), t$36542$3);
            break;
          }
        case 5:
          {
            verb = this[_autoClose](outPts);
            if (verb === 1) {
              this[_verbIndex] = dart.notNull(this[_verbIndex]) - 1;
            } else {
              this[_needClose] = false;
              this[_segmentState] = 0;
            }
            this[_lastPointX] = this[_moveToX];
            this[_lastPointY] = this[_moveToY];
            break;
          }
        case 6:
          {
            if (!(this[_verbIndex] == this.pathRef.countVerbs())) dart.assertFailed(null, I[293], 202, 16, "_verbIndex == pathRef.countVerbs()");
            break;
          }
        default:
          {
            dart.throw(new core.FormatException.new("Unsupport Path verb " + dart.str(verb)));
          }
      }
      return verb;
    }
    get conicWeight() {
      return this.pathRef.atWeight(this[_conicWeightIndex]);
    }
  };
  (_engine.PathIterator.new = function(pathRef, forceClose) {
    if (pathRef == null) dart.nullFailed(I[293], 11, 21, "pathRef");
    if (forceClose == null) dart.nullFailed(I[293], 11, 35, "forceClose");
    this[_needClose] = false;
    this[_segmentState] = 0;
    this[_conicWeightIndex] = -1;
    this[_lastPointX] = 0.0;
    this[_lastPointY] = 0.0;
    this[_moveToX] = 0.0;
    this[_moveToY] = 0.0;
    this[_verbIndex] = 0;
    this[_pointIndex] = 0;
    this[pathRef$] = pathRef;
    this[_forceClose] = forceClose;
    this[_verbCount] = pathRef.countVerbs();
    this[_pointIndex] = 0;
    if (!dart.test(this.pathRef.isFinite)) {
      this[_verbIndex] = this.pathRef.countVerbs();
    }
  }).prototype = _engine.PathIterator.prototype;
  dart.addRtiResources(_engine.PathIterator, ["_engine|PathIterator"]);
  dart.setMethodSignature(_engine.PathIterator, () => dart.global.Object.setPrototypeOf({
    isClosedContour: T$.VoidTobool(),
    [_autoClose]: T$11.Float32ListToint(),
    [_constructMoveTo]: T$8.VoidToOffset(),
    peek: T$.VoidToint(),
    next: T$11.Float32ListToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PathIterator))));
  dart.setGetterSignature(_engine.PathIterator, () => dart.global.Object.setPrototypeOf({
    pathVerbIndex: T$.int(),
    conicWeightIndex: T$.int(),
    conicWeight: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PathIterator))));
  dart.setLibraryUri(_engine.PathIterator, I[220]);
  dart.setFieldSignature(_engine.PathIterator, () => dart.global.Object.setPrototypeOf({
    pathRef: {type: T$11.PathRef(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_forceClose]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_verbCount]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_needClose]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_segmentState]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_conicWeightIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lastPointX]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lastPointY]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_moveToX]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_moveToY]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_verbIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pointIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PathIterator))));
  dart.setStaticFieldSignature(_engine.PathIterator, () => ['kMaxBufferSize']);
  dart.defineLazy(_engine.PathIterator, {
    /*_engine.PathIterator.kMaxBufferSize*/get kMaxBufferSize() {
      return 8;
    }
  }, false);
  _engine.SurfacePathMetrics = class SurfacePathMetrics extends G$.IterableOfPathMetric() {
    static ['_#new#tearOff'](path, forceClosed) {
      if (path == null) dart.nullFailed(I[294], 27, 30, "path");
      if (forceClosed == null) dart.nullFailed(I[294], 27, 41, "forceClosed");
      return new _engine.SurfacePathMetrics.new(path, forceClosed);
    }
    get iterator() {
      return this[_iterator$0];
    }
  };
  (_engine.SurfacePathMetrics.new = function(path, forceClosed) {
    if (path == null) dart.nullFailed(I[294], 27, 30, "path");
    if (forceClosed == null) dart.nullFailed(I[294], 27, 41, "forceClosed");
    this[_iterator$0] = new _engine.SurfacePathMetricIterator.__(new _engine._SurfacePathMeasure.new(new _engine.PathRef.shallowCopy(path), forceClosed));
    this.$ti = this.$ti || T$11.SurfacePathMetrics();
    dart.global.Object.getPrototypeOf(_engine.SurfacePathMetrics).new.call(this);
    ;
  }).prototype = _engine.SurfacePathMetrics.prototype;
  dart.addRtiResources(_engine.SurfacePathMetrics, ["_engine|SurfacePathMetrics", "ui|PathMetrics", "core|Iterable"]);
  dart.setGetterSignature(_engine.SurfacePathMetrics, () => dart.global.Object.setPrototypeOf({
    iterator: T$10.IteratorOfPathMetric(),
    [$iterator]: T$10.IteratorOfPathMetric()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SurfacePathMetrics))));
  dart.setLibraryUri(_engine.SurfacePathMetrics, I[220]);
  dart.setFieldSignature(_engine.SurfacePathMetrics, () => dart.global.Object.setPrototypeOf({[_iterator$0]: {type: T$11.SurfacePathMetricIterator(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfacePathMetrics))));
  dart.defineExtensionAccessors(_engine.SurfacePathMetrics, ['iterator']);
  var _contours = dart.privateName(_engine, "_contours");
  var _verbIterIndex = dart.privateName(_engine, "_verbIterIndex");
  var _currentContourIndex = dart.privateName(_engine, "_currentContourIndex");
  var _pathIterator = dart.privateName(_engine, "_pathIterator");
  var _nativeNextContour = dart.privateName(_engine, "_nativeNextContour");
  var _nextContour = dart.privateName(_engine, "_nextContour");
  _engine._SurfacePathMeasure = class _SurfacePathMeasure extends core.Object {
    static ['_#new#tearOff'](_path, forceClosed) {
      if (_path == null) dart.nullFailed(I[294], 40, 28, "_path");
      if (forceClosed == null) dart.nullFailed(I[294], 40, 40, "forceClosed");
      return new _engine._SurfacePathMeasure.new(_path, forceClosed);
    }
    get currentContourIndex() {
      return this[_currentContourIndex];
    }
    length(contourIndex) {
      if (contourIndex == null) dart.nullFailed(I[294], 57, 21, "contourIndex");
      if (!(dart.notNull(contourIndex) <= dart.notNull(this.currentContourIndex))) dart.assertFailed("Iterator must be advanced before index " + dart.str(contourIndex) + " can be used.", I[294], 58, 12, "contourIndex <= currentContourIndex");
      return this[_contours][$_get](contourIndex).length;
    }
    getTangentForOffset(contourIndex, distance) {
      if (contourIndex == null) dart.nullFailed(I[294], 73, 39, "contourIndex");
      if (distance == null) dart.nullFailed(I[294], 73, 60, "distance");
      return this[_contours][$_get](contourIndex).getTangentForOffset(distance);
    }
    isClosed(contourIndex) {
      if (contourIndex == null) dart.nullFailed(I[294], 77, 21, "contourIndex");
      return this[_contours][$_get](contourIndex).isClosed;
    }
    [_nextContour]() {
      let next = this[_nativeNextContour]();
      if (dart.test(next)) {
        this[_currentContourIndex] = dart.notNull(this[_currentContourIndex]) + 1;
      }
      return next;
    }
    [_nativeNextContour]() {
      if (this[_verbIterIndex] == this[_path$3].countVerbs()) {
        return false;
      }
      let measure = new _engine._PathContourMeasure.new(this[_path$3], this[_pathIterator], this.forceClosed);
      this[_verbIterIndex] = measure.verbEndIndex;
      this[_contours][$add](measure);
      return true;
    }
    extractPath(contourIndex, start, end, opts) {
      if (contourIndex == null) dart.nullFailed(I[294], 115, 27, "contourIndex");
      if (start == null) dart.nullFailed(I[294], 115, 48, "start");
      if (end == null) dart.nullFailed(I[294], 115, 62, "end");
      let startWithMoveTo = opts && 'startWithMoveTo' in opts ? opts.startWithMoveTo : true;
      if (startWithMoveTo == null) dart.nullFailed(I[294], 116, 13, "startWithMoveTo");
      return this[_contours][$_get](contourIndex).extractPath(start, end, startWithMoveTo);
    }
  };
  (_engine._SurfacePathMeasure.new = function(_path, forceClosed) {
    if (_path == null) dart.nullFailed(I[294], 40, 28, "_path");
    if (forceClosed == null) dart.nullFailed(I[294], 40, 40, "forceClosed");
    this[_contours] = G$.JSArrayOf_PathContourMeasure().of([]);
    this[_verbIterIndex] = 0;
    this[_path$3] = _path;
    this.forceClosed = forceClosed;
    this[_currentContourIndex] = -1;
    this[_pathIterator] = new _engine.PathIterator.new(_path, forceClosed);
    ;
  }).prototype = _engine._SurfacePathMeasure.prototype;
  dart.addRtiResources(_engine._SurfacePathMeasure, ["_engine|_SurfacePathMeasure"]);
  dart.setMethodSignature(_engine._SurfacePathMeasure, () => dart.global.Object.setPrototypeOf({
    length: T$0.intTodouble(),
    getTangentForOffset: T$11.intAnddoubleToTangentN(),
    isClosed: T$.intTobool(),
    [_nextContour]: T$.VoidTobool(),
    [_nativeNextContour]: T$.VoidTobool(),
    extractPath: T$11.intAnddoubleAnddouble__ToPath()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._SurfacePathMeasure))));
  dart.setGetterSignature(_engine._SurfacePathMeasure, () => dart.global.Object.setPrototypeOf({currentContourIndex: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._SurfacePathMeasure))));
  dart.setLibraryUri(_engine._SurfacePathMeasure, I[220]);
  dart.setFieldSignature(_engine._SurfacePathMeasure, () => dart.global.Object.setPrototypeOf({
    [_path$3]: {type: T$11.PathRef(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_pathIterator]: {type: T$11.PathIterator(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_contours]: {type: T$11.ListOf_PathContourMeasure(), isConst: false, isFinal: true, libraryUri: I[11]},
    forceClosed: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_currentContourIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_verbIterIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._SurfacePathMeasure))));
  var _verbEndIndex = dart.privateName(_engine, "_verbEndIndex");
  var _segments = dart.privateName(_engine, "_segments");
  var _contourLength = dart.privateName(_engine, "_contourLength");
  var _isClosed$0 = dart.privateName(_engine, "_isClosed");
  var _buildSegments = dart.privateName(_engine, "_buildSegments");
  var _segmentIndexAtDistance = dart.privateName(_engine, "_segmentIndexAtDistance");
  var _getPosTan = dart.privateName(_engine, "_getPosTan");
  var _outputSegmentTo = dart.privateName(_engine, "_outputSegmentTo");
  var _computeQuadSegments = dart.privateName(_engine, "_computeQuadSegments");
  _engine._PathContourMeasure = class _PathContourMeasure extends core.Object {
    static ['_#new#tearOff'](pathRef, iter, forceClosed) {
      if (pathRef == null) dart.nullFailed(I[294], 124, 28, "pathRef");
      if (iter == null) dart.nullFailed(I[294], 124, 50, "iter");
      if (forceClosed == null) dart.nullFailed(I[294], 124, 61, "forceClosed");
      return new _engine._PathContourMeasure.new(pathRef, iter, forceClosed);
    }
    get length() {
      return this[_contourLength];
    }
    get isClosed() {
      return this[_isClosed$0];
    }
    get verbEndIndex() {
      return this[_verbEndIndex];
    }
    getTangentForOffset(distance) {
      if (distance == null) dart.nullFailed(I[294], 143, 42, "distance");
      let segmentIndex = this[_segmentIndexAtDistance](distance);
      if (segmentIndex === -1) {
        return null;
      }
      return this[_getPosTan](segmentIndex, distance);
    }
    [_segmentIndexAtDistance](distance) {
      if (distance == null) dart.nullFailed(I[294], 152, 38, "distance");
      if (distance[$isNaN]) {
        return -1;
      }
      if (dart.notNull(distance) < 0.0) {
        distance = 0.0;
      } else if (dart.notNull(distance) > dart.notNull(this[_contourLength])) {
        distance = this[_contourLength];
      }
      if (dart.test(this[_segments][$isEmpty])) {
        return -1;
      }
      let lo = 0;
      let hi = dart.notNull(this[_segments][$length]) - 1;
      while (lo < hi) {
        let mid = (lo + hi)[$rightShift](1);
        if (dart.notNull(this[_segments][$_get](mid).distance) < dart.notNull(distance)) {
          lo = mid + 1;
        } else {
          hi = mid;
        }
      }
      if (dart.notNull(this[_segments][$_get](hi).distance) < dart.notNull(distance)) {
        hi = hi + 1;
      }
      return hi;
    }
    [_getPosTan](segmentIndex, distance) {
      if (segmentIndex == null) dart.nullFailed(I[294], 183, 34, "segmentIndex");
      if (distance == null) dart.nullFailed(I[294], 183, 55, "distance");
      let segment = this[_segments][$_get](segmentIndex);
      let startDistance = segmentIndex === 0 ? 0.0 : this[_segments][$_get](dart.notNull(segmentIndex) - 1).distance;
      let totalDistance = dart.notNull(segment.distance) - dart.notNull(startDistance);
      let t = totalDistance < 1e-9 ? 0.0 : (dart.notNull(distance) - dart.notNull(startDistance)) / totalDistance;
      return segment.computeTangent(t);
    }
    extractPath(startDistance, stopDistance, startWithMoveTo) {
      if (startDistance == null) dart.nullFailed(I[294], 198, 14, "startDistance");
      if (stopDistance == null) dart.nullFailed(I[294], 198, 36, "stopDistance");
      if (startWithMoveTo == null) dart.nullFailed(I[294], 198, 55, "startWithMoveTo");
      if (dart.notNull(startDistance) < 0) {
        startDistance = 0.0;
      }
      if (dart.notNull(stopDistance) > dart.notNull(this[_contourLength])) {
        stopDistance = this[_contourLength];
      }
      let path = ui.Path.new();
      if (dart.notNull(startDistance) > dart.notNull(stopDistance) || dart.test(this[_segments][$isEmpty])) {
        return path;
      }
      let startSegmentIndex = this[_segmentIndexAtDistance](startDistance);
      let stopSegmentIndex = this[_segmentIndexAtDistance](stopDistance);
      if (startSegmentIndex === -1 || stopSegmentIndex === -1) {
        return path;
      }
      let currentSegmentIndex = startSegmentIndex;
      let seg = this[_segments][$_get](currentSegmentIndex);
      let startTangent = this[_getPosTan](startSegmentIndex, startDistance);
      if (dart.test(startWithMoveTo)) {
        let startPosition = startTangent.position;
        path.moveTo(startPosition.dx, startPosition.dy);
      }
      let stopTangent = this[_getPosTan](stopSegmentIndex, stopDistance);
      let startT = startTangent.t;
      let stopT = stopTangent.t;
      if (startSegmentIndex == stopSegmentIndex) {
        this[_outputSegmentTo](seg, startT, stopT, path);
      } else {
        do {
          this[_outputSegmentTo](seg, startT, 1.0, path);
          currentSegmentIndex = dart.notNull(currentSegmentIndex) + 1;
          seg = this[_segments][$_get](currentSegmentIndex);
          startT = 0.0;
        } while (currentSegmentIndex != stopSegmentIndex);
        this[_outputSegmentTo](seg, 0.0, stopT, path);
      }
      return path;
    }
    [_outputSegmentTo](segment, startT, stopT, path) {
      if (segment == null) dart.nullFailed(I[294], 246, 20, "segment");
      if (startT == null) dart.nullFailed(I[294], 246, 36, "startT");
      if (stopT == null) dart.nullFailed(I[294], 246, 51, "stopT");
      if (path == null) dart.nullFailed(I[294], 246, 66, "path");
      let points = segment.points;
      switch (segment.segmentType) {
        case 1:
          {
            let toX = dart.notNull(points[$_get](2)) * dart.notNull(stopT) + dart.notNull(points[$_get](0)) * (1.0 - dart.notNull(stopT));
            let toY = dart.notNull(points[$_get](3)) * dart.notNull(stopT) + dart.notNull(points[$_get](1)) * (1.0 - dart.notNull(stopT));
            path.lineTo(toX, toY);
            break;
          }
        case 4:
          {
            _engine.chopCubicBetweenT(points, startT, stopT, _engine._PathContourMeasure._buffer);
            path.cubicTo(_engine._PathContourMeasure._buffer[$_get](2), _engine._PathContourMeasure._buffer[$_get](3), _engine._PathContourMeasure._buffer[$_get](4), _engine._PathContourMeasure._buffer[$_get](5), _engine._PathContourMeasure._buffer[$_get](6), _engine._PathContourMeasure._buffer[$_get](7));
            break;
          }
        case 2:
          {
            _engine._chopQuadBetweenT(points, startT, stopT, _engine._PathContourMeasure._buffer);
            path.quadraticBezierTo(_engine._PathContourMeasure._buffer[$_get](2), _engine._PathContourMeasure._buffer[$_get](3), _engine._PathContourMeasure._buffer[$_get](4), _engine._PathContourMeasure._buffer[$_get](5));
            break;
          }
        case 3:
          {
            dart.throw(new core.UnimplementedError.new());
          }
        default:
          {
            dart.throw(new core.UnsupportedError.new("Invalid segment type"));
          }
      }
    }
    [_buildSegments](iter) {
      if (iter == null) dart.nullFailed(I[294], 270, 35, "iter");
      if (!dart.test(this[_segments][$isEmpty])) dart.assertFailed("_buildSegments should be called once", I[294], 271, 12, "_segments.isEmpty");
      this[_isClosed$0] = false;
      let distance = 0.0;
      let haveSeenMoveTo = false;
      const lineToHandler = (fromX, fromY, x, y) => {
        if (fromX == null) dart.nullFailed(I[294], 276, 31, "fromX");
        if (fromY == null) dart.nullFailed(I[294], 276, 45, "fromY");
        if (x == null) dart.nullFailed(I[294], 276, 59, "x");
        if (y == null) dart.nullFailed(I[294], 276, 69, "y");
        let dx = dart.notNull(fromX) - dart.notNull(x);
        let dy = dart.notNull(fromY) - dart.notNull(y);
        let prevDistance = distance;
        distance = dart.notNull(distance) + math.sqrt(dx * dx + dy * dy);
        if (dart.notNull(distance) > dart.notNull(prevDistance)) {
          this[_segments][$add](new _engine._PathSegment.new(1, distance, G$.JSArrayOfdouble().of([fromX, fromY, x, y])));
        }
      };
      dart.fn(lineToHandler, T$10.doubleAnddoubleAnddouble__Tovoid$3());
      let verb = 0;
      let points = _native_typed_data.NativeFloat32List.new(8);
      do {
        if (iter.peek() === 0 && haveSeenMoveTo) {
          break;
        }
        verb = iter.next(points);
        switch (verb) {
          case 0:
            {
              haveSeenMoveTo = true;
              break;
            }
          case 1:
            {
              if (!haveSeenMoveTo) dart.assertFailed(null, I[294], 302, 18, "haveSeenMoveTo");
              lineToHandler(points[$_get](0), points[$_get](1), points[$_get](2), points[$_get](3));
              break;
            }
          case 4:
            {
              if (!haveSeenMoveTo) dart.assertFailed(null, I[294], 305, 18, "haveSeenMoveTo");
              distance = _engine._PathContourMeasure._computeCubicSegments(points[$_get](0), points[$_get](1), points[$_get](2), points[$_get](3), points[$_get](4), points[$_get](5), points[$_get](6), points[$_get](7), distance, 0, 1073741823, this[_segments]);
              break;
            }
          case 3:
            {
              if (!haveSeenMoveTo) dart.assertFailed(null, I[294], 321, 18, "haveSeenMoveTo");
              let w = iter.conicWeight;
              let conic = new _engine.Conic.new(points[$_get](0), points[$_get](1), points[$_get](2), points[$_get](3), points[$_get](4), points[$_get](5), w);
              let conicPoints = conic.toQuads();
              let len = conicPoints[$length];
              let startX = conicPoints[$_get](0).dx;
              let startY = conicPoints[$_get](0).dy;
              for (let i = 1; i < dart.notNull(len); i = i + 2) {
                let p1x = conicPoints[$_get](i).dx;
                let p1y = conicPoints[$_get](i).dy;
                let p2x = conicPoints[$_get](i + 1).dx;
                let p2y = conicPoints[$_get](i + 1).dy;
                distance = this[_computeQuadSegments](startX, startY, p1x, p1y, p2x, p2y, distance, 0, 1073741823);
                startX = p2x;
                startY = p2y;
              }
              break;
            }
          case 2:
            {
              if (!haveSeenMoveTo) dart.assertFailed(null, I[294], 340, 18, "haveSeenMoveTo");
              distance = this[_computeQuadSegments](points[$_get](0), points[$_get](1), points[$_get](2), points[$_get](3), points[$_get](4), points[$_get](5), distance, 0, 1073741823);
              break;
            }
          case 5:
            {
              this[_contourLength] = distance;
              return iter.pathVerbIndex;
            }
          default:
            {
              break;
            }
        }
      } while (verb !== 6);
      this[_contourLength] = distance;
      return iter.pathVerbIndex;
    }
    static _tspanBigEnough(tSpan) {
      if (tSpan == null) dart.nullFailed(I[294], 355, 35, "tSpan");
      return tSpan[$rightShift](10) !== 0;
    }
    static _cubicTooCurvy(x0, y0, x1, y1, x2, y2, x3, y3) {
      if (x0 == null) dart.nullFailed(I[294], 357, 37, "x0");
      if (y0 == null) dart.nullFailed(I[294], 357, 48, "y0");
      if (x1 == null) dart.nullFailed(I[294], 357, 59, "x1");
      if (y1 == null) dart.nullFailed(I[294], 357, 70, "y1");
      if (x2 == null) dart.nullFailed(I[294], 358, 14, "x2");
      if (y2 == null) dart.nullFailed(I[294], 358, 25, "y2");
      if (x3 == null) dart.nullFailed(I[294], 358, 36, "x3");
      if (y3 == null) dart.nullFailed(I[294], 358, 47, "y3");
      let p1x = dart.notNull(x0) * 2 / 3 + dart.notNull(x3) / 3;
      let p1y = dart.notNull(y0) * 2 / 3 + dart.notNull(y3) / 3;
      if ((p1x - dart.notNull(x1))[$abs]() > 0.5) {
        return true;
      }
      if ((p1y - dart.notNull(y1))[$abs]() > 0.5) {
        return true;
      }
      let p2x = dart.notNull(x0) / 3 + dart.notNull(x3) * 2 / 3;
      let p2y = dart.notNull(y0) / 3 + dart.notNull(y3) * 2 / 3;
      if ((p2x - dart.notNull(x2))[$abs]() > 0.5) {
        return true;
      }
      if ((p2y - dart.notNull(y2))[$abs]() > 0.5) {
        return true;
      }
      return false;
    }
    static _computeCubicSegments(x0, y0, x1, y1, x2, y2, x3, y3, distance, tMin, tMax, segments) {
      if (x0 == null) dart.nullFailed(I[294], 386, 14, "x0");
      if (y0 == null) dart.nullFailed(I[294], 387, 14, "y0");
      if (x1 == null) dart.nullFailed(I[294], 388, 14, "x1");
      if (y1 == null) dart.nullFailed(I[294], 389, 14, "y1");
      if (x2 == null) dart.nullFailed(I[294], 390, 14, "x2");
      if (y2 == null) dart.nullFailed(I[294], 391, 14, "y2");
      if (x3 == null) dart.nullFailed(I[294], 392, 14, "x3");
      if (y3 == null) dart.nullFailed(I[294], 393, 14, "y3");
      if (distance == null) dart.nullFailed(I[294], 394, 14, "distance");
      if (tMin == null) dart.nullFailed(I[294], 395, 11, "tMin");
      if (tMax == null) dart.nullFailed(I[294], 396, 11, "tMax");
      if (segments == null) dart.nullFailed(I[294], 397, 26, "segments");
      if (dart.test(_engine._PathContourMeasure._tspanBigEnough(dart.notNull(tMax) - dart.notNull(tMin))) && dart.test(_engine._PathContourMeasure._cubicTooCurvy(x0, y0, x1, y1, x2, y2, x3, y3))) {
        let abX = (dart.notNull(x0) + dart.notNull(x1)) / 2;
        let abY = (dart.notNull(y0) + dart.notNull(y1)) / 2;
        let bcX = (dart.notNull(x1) + dart.notNull(x2)) / 2;
        let bcY = (dart.notNull(y1) + dart.notNull(y2)) / 2;
        let cdX = (dart.notNull(x2) + dart.notNull(x3)) / 2;
        let cdY = (dart.notNull(y2) + dart.notNull(y3)) / 2;
        let abcX = (abX + bcX) / 2;
        let abcY = (abY + bcY) / 2;
        let bcdX = (bcX + cdX) / 2;
        let bcdY = (bcY + cdY) / 2;
        let abcdX = (abcX + bcdX) / 2;
        let abcdY = (abcY + bcdY) / 2;
        let tHalf = (dart.notNull(tMin) + dart.notNull(tMax))[$rightShift](1);
        distance = _engine._PathContourMeasure._computeCubicSegments(x0, y0, abX, abY, abcX, abcY, abcdX, abcdY, distance, tMin, tHalf, segments);
        distance = _engine._PathContourMeasure._computeCubicSegments(abcdX, abcdY, bcdX, bcdY, cdX, cdY, x3, y3, distance, tHalf, tMax, segments);
      } else {
        let dx = dart.notNull(x0) - dart.notNull(x3);
        let dy = dart.notNull(y0) - dart.notNull(y3);
        let startToEndDistance = math.sqrt(dx * dx + dy * dy);
        let prevDistance = distance;
        distance = dart.notNull(distance) + startToEndDistance;
        if (dart.notNull(distance) > dart.notNull(prevDistance)) {
          segments[$add](new _engine._PathSegment.new(4, distance, G$.JSArrayOfdouble().of([x0, y0, x1, y1, x2, y2, x3, y3])));
        }
      }
      return distance;
    }
    static _quadTooCurvy(x0, y0, x1, y1, x2, y2) {
      if (x0 == null) dart.nullFailed(I[294], 434, 14, "x0");
      if (y0 == null) dart.nullFailed(I[294], 434, 25, "y0");
      if (x1 == null) dart.nullFailed(I[294], 434, 36, "x1");
      if (y1 == null) dart.nullFailed(I[294], 434, 47, "y1");
      if (x2 == null) dart.nullFailed(I[294], 434, 58, "x2");
      if (y2 == null) dart.nullFailed(I[294], 434, 69, "y2");
      let dx = dart.notNull(x1) / 2 - (dart.notNull(x0) + dart.notNull(x2)) / 4;
      if (dx[$abs]() > 0.5) {
        return true;
      }
      let dy = dart.notNull(y1) / 2 - (dart.notNull(y0) + dart.notNull(y2)) / 4;
      if (dy[$abs]() > 0.5) {
        return true;
      }
      return false;
    }
    [_computeQuadSegments](x0, y0, x1, y1, x2, y2, distance, tMin, tMax) {
      if (x0 == null) dart.nullFailed(I[294], 447, 38, "x0");
      if (y0 == null) dart.nullFailed(I[294], 447, 49, "y0");
      if (x1 == null) dart.nullFailed(I[294], 447, 60, "x1");
      if (y1 == null) dart.nullFailed(I[294], 447, 71, "y1");
      if (x2 == null) dart.nullFailed(I[294], 448, 14, "x2");
      if (y2 == null) dart.nullFailed(I[294], 448, 25, "y2");
      if (distance == null) dart.nullFailed(I[294], 448, 36, "distance");
      if (tMin == null) dart.nullFailed(I[294], 448, 50, "tMin");
      if (tMax == null) dart.nullFailed(I[294], 448, 60, "tMax");
      if (dart.test(_engine._PathContourMeasure._tspanBigEnough(dart.notNull(tMax) - dart.notNull(tMin))) && dart.test(_engine._PathContourMeasure._quadTooCurvy(x0, y0, x1, y1, x2, y2))) {
        let p01x = (dart.notNull(x0) + dart.notNull(x1)) / 2;
        let p01y = (dart.notNull(y0) + dart.notNull(y1)) / 2;
        let p12x = (dart.notNull(x1) + dart.notNull(x2)) / 2;
        let p12y = (dart.notNull(y1) + dart.notNull(y2)) / 2;
        let p012x = (p01x + p12x) / 2;
        let p012y = (p01y + p12y) / 2;
        let tHalf = (dart.notNull(tMin) + dart.notNull(tMax))[$rightShift](1);
        distance = this[_computeQuadSegments](x0, y0, p01x, p01y, p012x, p012y, distance, tMin, tHalf);
        distance = this[_computeQuadSegments](p012x, p012y, p12x, p12y, x2, y2, distance, tMin, tHalf);
      } else {
        let dx = dart.notNull(x0) - dart.notNull(x2);
        let dy = dart.notNull(y0) - dart.notNull(y2);
        let startToEndDistance = math.sqrt(dx * dx + dy * dy);
        let prevDistance = distance;
        distance = dart.notNull(distance) + startToEndDistance;
        if (dart.notNull(distance) > dart.notNull(prevDistance)) {
          this[_segments][$add](new _engine._PathSegment.new(2, distance, G$.JSArrayOfdouble().of([x0, y0, x1, y1, x2, y2])));
        }
      }
      return distance;
    }
  };
  (_engine._PathContourMeasure.new = function(pathRef, iter, forceClosed) {
    if (pathRef == null) dart.nullFailed(I[294], 124, 28, "pathRef");
    if (iter == null) dart.nullFailed(I[294], 124, 50, "iter");
    if (forceClosed == null) dart.nullFailed(I[294], 124, 61, "forceClosed");
    this[_verbEndIndex] = 0;
    this[_segments] = G$.JSArrayOf_PathSegment().of([]);
    this[_contourLength] = 0.0;
    this[_isClosed$0] = false;
    this.pathRef = pathRef;
    this.forceClosed = forceClosed;
    this[_verbEndIndex] = this[_buildSegments](iter);
  }).prototype = _engine._PathContourMeasure.prototype;
  dart.addRtiResources(_engine._PathContourMeasure, ["_engine|_PathContourMeasure"]);
  dart.setMethodSignature(_engine._PathContourMeasure, () => dart.global.Object.setPrototypeOf({
    getTangentForOffset: T$11.doubleToTangentN(),
    [_segmentIndexAtDistance]: T$8.doubleToint(),
    [_getPosTan]: T$11.intAnddoubleTo_SurfaceTangent(),
    extractPath: T$11.doubleAnddoubleAndboolToPath(),
    [_outputSegmentTo]: T$11._PathSegmentAnddoubleAnddouble__Tovoid(),
    [_buildSegments]: T$11.PathIteratorToint(),
    [_computeQuadSegments]: T$11.doubleAnddoubleAnddouble__Todouble$3()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._PathContourMeasure))));
  dart.setStaticMethodSignature(_engine._PathContourMeasure, () => ['_tspanBigEnough', '_cubicTooCurvy', '_computeCubicSegments', '_quadTooCurvy']);
  dart.setGetterSignature(_engine._PathContourMeasure, () => dart.global.Object.setPrototypeOf({
    length: T$.double(),
    isClosed: T$.bool(),
    verbEndIndex: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._PathContourMeasure))));
  dart.setLibraryUri(_engine._PathContourMeasure, I[220]);
  dart.setFieldSignature(_engine._PathContourMeasure, () => dart.global.Object.setPrototypeOf({
    pathRef: {type: T$11.PathRef(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_verbEndIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_segments]: {type: T$11.ListOf_PathSegment(), isConst: false, isFinal: true, libraryUri: I[11]},
    forceClosed: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_contourLength]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isClosed$0]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._PathContourMeasure))));
  dart.setStaticFieldSignature(_engine._PathContourMeasure, () => ['_buffer']);
  dart.defineLazy(_engine._PathContourMeasure, {
    /*_engine._PathContourMeasure._buffer*/get _buffer() {
      return _native_typed_data.NativeFloat32List.new(8);
    }
  }, false);
  var _pathMetric = dart.privateName(_engine, "_pathMetric");
  var _pathMeasure$ = dart.privateName(_engine, "_pathMeasure");
  _engine.SurfacePathMetricIterator = class SurfacePathMetricIterator extends core.Object {
    static ['_#_#tearOff'](_pathMeasure) {
      if (_pathMeasure == null) dart.nullFailed(I[294], 478, 36, "_pathMeasure");
      return new _engine.SurfacePathMetricIterator.__(_pathMeasure);
    }
    get current() {
      if (this[_pathMetric] == null) {
        dart.throw(new core.RangeError.new("PathMetricIterator is not pointing to a PathMetric. This can happen in two situations:\n- The iteration has not started yet. If so, call \"moveNext\" to start iteration.\n- The iterator ran out of elements. If so, check that \"moveNext\" returns true prior to calling \"current\"."));
      }
      return dart.nullCheck(this[_pathMetric]);
    }
    moveNext() {
      if (dart.test(this[_pathMeasure$][_nextContour]())) {
        this[_pathMetric] = new _engine.SurfacePathMetric.__(this[_pathMeasure$]);
        return true;
      }
      this[_pathMetric] = null;
      return false;
    }
  };
  (_engine.SurfacePathMetricIterator.__ = function(_pathMeasure) {
    if (_pathMeasure == null) dart.nullFailed(I[294], 478, 36, "_pathMeasure");
    this[_pathMetric] = null;
    this[_pathMeasure$] = _pathMeasure;
    ;
  }).prototype = _engine.SurfacePathMetricIterator.prototype;
  dart.addRtiResources(_engine.SurfacePathMetricIterator, ["_engine|SurfacePathMetricIterator", "core|Iterator"]);
  dart.setMethodSignature(_engine.SurfacePathMetricIterator, () => dart.global.Object.setPrototypeOf({moveNext: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SurfacePathMetricIterator))));
  dart.setGetterSignature(_engine.SurfacePathMetricIterator, () => dart.global.Object.setPrototypeOf({current: T$11.SurfacePathMetric()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SurfacePathMetricIterator))));
  dart.setLibraryUri(_engine.SurfacePathMetricIterator, I[220]);
  dart.setFieldSignature(_engine.SurfacePathMetricIterator, () => dart.global.Object.setPrototypeOf({
    [_pathMetric]: {type: T$11.SurfacePathMetricN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_pathMeasure$]: {type: T$11._SurfacePathMeasure(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfacePathMetricIterator))));
  var length$1 = dart.privateName(_engine, "SurfacePathMetric.length");
  var isClosed = dart.privateName(_engine, "SurfacePathMetric.isClosed");
  var contourIndex = dart.privateName(_engine, "SurfacePathMetric.contourIndex");
  var _measure$ = dart.privateName(_engine, "_measure");
  _engine.SurfacePathMetric = class SurfacePathMetric extends core.Object {
    get length() {
      return this[length$1];
    }
    set length(value) {
      super.length = value;
    }
    get isClosed() {
      return this[isClosed];
    }
    set isClosed(value) {
      super.isClosed = value;
    }
    get contourIndex() {
      return this[contourIndex];
    }
    set contourIndex(value) {
      super.contourIndex = value;
    }
    static ['_#_#tearOff'](_measure) {
      if (_measure == null) dart.nullFailed(I[294], 528, 28, "_measure");
      return new _engine.SurfacePathMetric.__(_measure);
    }
    getTangentForOffset(distance) {
      if (distance == null) dart.nullFailed(I[294], 574, 42, "distance");
      return this[_measure$].getTangentForOffset(this.contourIndex, distance);
    }
    extractPath(start, end, opts) {
      if (start == null) dart.nullFailed(I[294], 583, 30, "start");
      if (end == null) dart.nullFailed(I[294], 583, 44, "end");
      let startWithMoveTo = opts && 'startWithMoveTo' in opts ? opts.startWithMoveTo : true;
      if (startWithMoveTo == null) dart.nullFailed(I[294], 583, 55, "startWithMoveTo");
      return this[_measure$].extractPath(this.contourIndex, start, end, {startWithMoveTo: startWithMoveTo});
    }
    toString() {
      return "PathMetric";
    }
  };
  (_engine.SurfacePathMetric.__ = function(_measure) {
    if (_measure == null) dart.nullFailed(I[294], 528, 28, "_measure");
    this[_measure$] = _measure;
    this[length$1] = _measure.length(_measure.currentContourIndex);
    this[isClosed] = _measure.isClosed(_measure.currentContourIndex);
    this[contourIndex] = _measure.currentContourIndex;
    ;
  }).prototype = _engine.SurfacePathMetric.prototype;
  dart.addRtiResources(_engine.SurfacePathMetric, ["_engine|SurfacePathMetric", "ui|PathMetric"]);
  dart.setMethodSignature(_engine.SurfacePathMetric, () => dart.global.Object.setPrototypeOf({
    getTangentForOffset: T$11.doubleToTangentN(),
    extractPath: T$10.doubleAnddouble__ToPath()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SurfacePathMetric))));
  dart.setLibraryUri(_engine.SurfacePathMetric, I[220]);
  dart.setFieldSignature(_engine.SurfacePathMetric, () => dart.global.Object.setPrototypeOf({
    length: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    isClosed: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    contourIndex: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_measure$]: {type: T$11._SurfacePathMeasure(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfacePathMetric))));
  dart.defineExtensionMethods(_engine.SurfacePathMetric, ['toString']);
  var t$ = dart.privateName(_engine, "_SurfaceTangent.t");
  _engine._SurfaceTangent = class _SurfaceTangent extends ui.Tangent {
    get t() {
      return this[t$];
    }
    set t(value) {
      super.t = value;
    }
    static ['_#new#tearOff'](position, vector, t) {
      if (position == null) dart.nullFailed(I[294], 601, 31, "position");
      if (vector == null) dart.nullFailed(I[294], 601, 47, "vector");
      if (t == null) dart.nullFailed(I[294], 601, 60, "t");
      return new _engine._SurfaceTangent.new(position, vector, t);
    }
  };
  (_engine._SurfaceTangent.new = function(position, vector, t) {
    if (position == null) dart.nullFailed(I[294], 601, 31, "position");
    if (vector == null) dart.nullFailed(I[294], 601, 47, "vector");
    if (t == null) dart.nullFailed(I[294], 601, 60, "t");
    this[t$] = t;
    dart.global.Object.getPrototypeOf(_engine._SurfaceTangent).new.call(this, position, vector);
    ;
  }).prototype = _engine._SurfaceTangent.prototype;
  dart.addRtiResources(_engine._SurfaceTangent, ["_engine|_SurfaceTangent"]);
  dart.setLibraryUri(_engine._SurfaceTangent, I[220]);
  dart.setFieldSignature(_engine._SurfaceTangent, () => dart.global.Object.setPrototypeOf({t: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine._SurfaceTangent))));
  _engine._PathSegment = class _PathSegment extends core.Object {
    static ['_#new#tearOff'](segmentType, distance, points) {
      if (segmentType == null) dart.nullFailed(I[294], 608, 21, "segmentType");
      if (distance == null) dart.nullFailed(I[294], 608, 39, "distance");
      if (points == null) dart.nullFailed(I[294], 608, 54, "points");
      return new _engine._PathSegment.new(segmentType, distance, points);
    }
    computeTangent(t) {
      if (t == null) dart.nullFailed(I[294], 614, 41, "t");
      switch (this.segmentType) {
        case 1:
          {
            let xAtDistance = dart.notNull(this.points[$_get](2)) * dart.notNull(t) + dart.notNull(this.points[$_get](0)) * (1.0 - dart.notNull(t));
            let yAtDistance = dart.notNull(this.points[$_get](3)) * dart.notNull(t) + dart.notNull(this.points[$_get](1)) * (1.0 - dart.notNull(t));
            return new _engine._SurfaceTangent.new(new ui.Offset.new(xAtDistance, yAtDistance), _engine._normalizeSlope(dart.notNull(this.points[$_get](2)) - dart.notNull(this.points[$_get](0)), dart.notNull(this.points[$_get](3)) - dart.notNull(this.points[$_get](1))), t);
          }
        case 4:
          {
            return this.tangentForCubicAt(t, this.points[$_get](0), this.points[$_get](1), this.points[$_get](2), this.points[$_get](3), this.points[$_get](4), this.points[$_get](5), this.points[$_get](6), this.points[$_get](7));
          }
        case 2:
          {
            return this.tangentForQuadAt(t, this.points[$_get](0), this.points[$_get](1), this.points[$_get](2), this.points[$_get](3), this.points[$_get](4), this.points[$_get](5));
          }
        default:
          {
            dart.throw(new core.UnsupportedError.new("Invalid segment type"));
          }
      }
    }
    tangentForQuadAt(t, x0, y0, x1, y1, x2, y2) {
      if (t == null) dart.nullFailed(I[294], 633, 43, "t");
      if (x0 == null) dart.nullFailed(I[294], 633, 53, "x0");
      if (y0 == null) dart.nullFailed(I[294], 633, 64, "y0");
      if (x1 == null) dart.nullFailed(I[294], 633, 75, "x1");
      if (y1 == null) dart.nullFailed(I[294], 634, 14, "y1");
      if (x2 == null) dart.nullFailed(I[294], 634, 25, "x2");
      if (y2 == null) dart.nullFailed(I[294], 634, 36, "y2");
      if (!(dart.notNull(t) >= 0 && dart.notNull(t) <= 1)) dart.assertFailed(null, I[294], 635, 12, "t >= 0 && t <= 1");
      let quadEval = new _engine.SkQuadCoefficients.new(x0, y0, x1, y1, x2, y2);
      let pos = new ui.Offset.new(quadEval.evalX(t), quadEval.evalY(t));
      let tangentVector = t === 0 && x0 == x1 && y0 == y1 || t === 1 && x1 == x2 && y1 == y2 ? _engine._normalizeSlope(dart.notNull(x2) - dart.notNull(x0), dart.notNull(y2) - dart.notNull(y0)) : _engine._normalizeSlope(2 * ((dart.notNull(x2) - dart.notNull(x0)) * dart.notNull(t) + (dart.notNull(x1) - dart.notNull(x0))), 2 * ((dart.notNull(y2) - dart.notNull(y0)) * dart.notNull(t) + (dart.notNull(y1) - dart.notNull(y0))));
      return new _engine._SurfaceTangent.new(pos, tangentVector, t);
    }
    tangentForCubicAt(t, x0, y0, x1, y1, x2, y2, x3, y3) {
      if (t == null) dart.nullFailed(I[294], 651, 44, "t");
      if (x0 == null) dart.nullFailed(I[294], 651, 54, "x0");
      if (y0 == null) dart.nullFailed(I[294], 651, 65, "y0");
      if (x1 == null) dart.nullFailed(I[294], 651, 76, "x1");
      if (y1 == null) dart.nullFailed(I[294], 652, 14, "y1");
      if (x2 == null) dart.nullFailed(I[294], 652, 25, "x2");
      if (y2 == null) dart.nullFailed(I[294], 652, 36, "y2");
      if (x3 == null) dart.nullFailed(I[294], 652, 47, "x3");
      if (y3 == null) dart.nullFailed(I[294], 652, 58, "y3");
      if (!(dart.notNull(t) >= 0 && dart.notNull(t) <= 1)) dart.assertFailed(null, I[294], 653, 12, "t >= 0 && t <= 1");
      let cubicEval = new _engine._SkCubicCoefficients.new(x0, y0, x1, y1, x2, y2, x3, y3);
      let pos = new ui.Offset.new(cubicEval.evalX(t), cubicEval.evalY(t));
      let tAtZero = t === 0;
      let tangentVector = null;
      if (tAtZero && x0 == x1 && y0 == y1 || t === 1 && x2 == x3 && y2 == y3) {
        let dx = tAtZero ? dart.notNull(x2) - dart.notNull(x0) : dart.notNull(x3) - dart.notNull(x1);
        let dy = tAtZero ? dart.notNull(y2) - dart.notNull(y0) : dart.notNull(y3) - dart.notNull(y1);
        if (dx === 0 && dy === 0) {
          dx = dart.notNull(x3) - dart.notNull(x0);
          dy = dart.notNull(y3) - dart.notNull(y0);
        }
        tangentVector = _engine._normalizeSlope(dx, dy);
      } else {
        let ax = dart.notNull(x3) + 3 * (dart.notNull(x1) - dart.notNull(x2)) - dart.notNull(x0);
        let ay = dart.notNull(y3) + 3 * (dart.notNull(y1) - dart.notNull(y2)) - dart.notNull(y0);
        let bx = 2 * (dart.notNull(x2) - 2 * dart.notNull(x1) + dart.notNull(x0));
        let by = 2 * (dart.notNull(y2) - 2 * dart.notNull(y1) + dart.notNull(y0));
        let cx = dart.notNull(x1) - dart.notNull(x0);
        let cy = dart.notNull(y1) - dart.notNull(y0);
        let tx = (ax * dart.notNull(t) + bx) * dart.notNull(t) + cx;
        let ty = (ay * dart.notNull(t) + by) * dart.notNull(t) + cy;
        tangentVector = _engine._normalizeSlope(tx, ty);
      }
      return new _engine._SurfaceTangent.new(pos, tangentVector, t);
    }
  };
  (_engine._PathSegment.new = function(segmentType, distance, points) {
    if (segmentType == null) dart.nullFailed(I[294], 608, 21, "segmentType");
    if (distance == null) dart.nullFailed(I[294], 608, 39, "distance");
    if (points == null) dart.nullFailed(I[294], 608, 54, "points");
    this.segmentType = segmentType;
    this.distance = distance;
    this.points = points;
    ;
  }).prototype = _engine._PathSegment.prototype;
  dart.addRtiResources(_engine._PathSegment, ["_engine|_PathSegment"]);
  dart.setMethodSignature(_engine._PathSegment, () => dart.global.Object.setPrototypeOf({
    computeTangent: T$11.doubleTo_SurfaceTangent(),
    tangentForQuadAt: T$11.doubleAnddoubleAnddouble__To_SurfaceTangent(),
    tangentForCubicAt: T$11.doubleAnddoubleAnddouble__To_SurfaceTangent$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._PathSegment))));
  dart.setLibraryUri(_engine._PathSegment, I[220]);
  dart.setFieldSignature(_engine._PathSegment, () => dart.global.Object.setPrototypeOf({
    segmentType: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    distance: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    points: {type: T$9.ListOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._PathSegment))));
  _engine._SkCubicCoefficients = class _SkCubicCoefficients extends core.Object {
    static ['_#new#tearOff'](x0, y0, x1, y1, x2, y2, x3, y3) {
      if (x0 == null) dart.nullFailed(I[294], 688, 31, "x0");
      if (y0 == null) dart.nullFailed(I[294], 688, 42, "y0");
      if (x1 == null) dart.nullFailed(I[294], 688, 53, "x1");
      if (y1 == null) dart.nullFailed(I[294], 688, 64, "y1");
      if (x2 == null) dart.nullFailed(I[294], 688, 75, "x2");
      if (y2 == null) dart.nullFailed(I[294], 689, 14, "y2");
      if (x3 == null) dart.nullFailed(I[294], 689, 25, "x3");
      if (y3 == null) dart.nullFailed(I[294], 689, 36, "y3");
      return new _engine._SkCubicCoefficients.new(x0, y0, x1, y1, x2, y2, x3, y3);
    }
    evalX(t) {
      if (t == null) dart.nullFailed(I[294], 701, 23, "t");
      return ((dart.notNull(this.ax) * dart.notNull(t) + dart.notNull(this.bx)) * dart.notNull(t) + dart.notNull(this.cx)) * dart.notNull(t) + dart.notNull(this.dx);
    }
    evalY(t) {
      if (t == null) dart.nullFailed(I[294], 703, 23, "t");
      return ((dart.notNull(this.ay) * dart.notNull(t) + dart.notNull(this.by)) * dart.notNull(t) + dart.notNull(this.cy)) * dart.notNull(t) + dart.notNull(this.dy);
    }
  };
  (_engine._SkCubicCoefficients.new = function(x0, y0, x1, y1, x2, y2, x3, y3) {
    if (x0 == null) dart.nullFailed(I[294], 688, 31, "x0");
    if (y0 == null) dart.nullFailed(I[294], 688, 42, "y0");
    if (x1 == null) dart.nullFailed(I[294], 688, 53, "x1");
    if (y1 == null) dart.nullFailed(I[294], 688, 64, "y1");
    if (x2 == null) dart.nullFailed(I[294], 688, 75, "x2");
    if (y2 == null) dart.nullFailed(I[294], 689, 14, "y2");
    if (x3 == null) dart.nullFailed(I[294], 689, 25, "x3");
    if (y3 == null) dart.nullFailed(I[294], 689, 36, "y3");
    this.ax = dart.notNull(x3) + 3 * (dart.notNull(x1) - dart.notNull(x2)) - dart.notNull(x0);
    this.ay = dart.notNull(y3) + 3 * (dart.notNull(y1) - dart.notNull(y2)) - dart.notNull(y0);
    this.bx = 3 * (dart.notNull(x2) - 2 * dart.notNull(x1) + dart.notNull(x0));
    this.by = 3 * (dart.notNull(y2) - 2 * dart.notNull(y1) + dart.notNull(y0));
    this.cx = 3 * (dart.notNull(x1) - dart.notNull(x0));
    this.cy = 3 * (dart.notNull(y1) - dart.notNull(y0));
    this.dx = x0;
    this.dy = y0;
    ;
  }).prototype = _engine._SkCubicCoefficients.prototype;
  dart.addRtiResources(_engine._SkCubicCoefficients, ["_engine|_SkCubicCoefficients"]);
  dart.setMethodSignature(_engine._SkCubicCoefficients, () => dart.global.Object.setPrototypeOf({
    evalX: T$8.doubleTodouble(),
    evalY: T$8.doubleTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._SkCubicCoefficients))));
  dart.setLibraryUri(_engine._SkCubicCoefficients, I[220]);
  dart.setFieldSignature(_engine._SkCubicCoefficients, () => dart.global.Object.setPrototypeOf({
    ax: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    ay: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    bx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    by: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    cx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    cy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    dx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    dy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._SkCubicCoefficients))));
  var fBounds = dart.privateName(_engine, "PathRef.fBounds");
  var cachedBounds = dart.privateName(_engine, "PathRef.cachedBounds");
  var fPoints = dart.privateName(_engine, "PathRef.fPoints");
  var fBoundsIsDirty = dart.privateName(_engine, "PathRef.fBoundsIsDirty");
  var fIsFinite = dart.privateName(_engine, "PathRef.fIsFinite");
  var fIsOval = dart.privateName(_engine, "PathRef.fIsOval");
  var fIsRRect = dart.privateName(_engine, "PathRef.fIsRRect");
  var fIsRect = dart.privateName(_engine, "PathRef.fIsRect");
  var fRRectOrOvalIsCCW = dart.privateName(_engine, "PathRef.fRRectOrOvalIsCCW");
  var fRRectOrOvalStartIdx = dart.privateName(_engine, "PathRef.fRRectOrOvalStartIdx");
  var fSegmentMask = dart.privateName(_engine, "PathRef.fSegmentMask");
  var _fPointsCapacity = dart.privateName(_engine, "_fPointsCapacity");
  var _fPointsLength = dart.privateName(_engine, "_fPointsLength");
  var _fVerbsCapacity = dart.privateName(_engine, "_fVerbsCapacity");
  var _fVerbsLength = dart.privateName(_engine, "_fVerbsLength");
  var _conicWeightsCapacity = dart.privateName(_engine, "_conicWeightsCapacity");
  var _conicWeights = dart.privateName(_engine, "_conicWeights");
  var _conicWeightsLength = dart.privateName(_engine, "_conicWeightsLength");
  var _fVerbs = dart.privateName(_engine, "_fVerbs");
  var _computeBounds = dart.privateName(_engine, "_computeBounds");
  var _getRRect = dart.privateName(_engine, "_getRRect");
  var _detectRect = dart.privateName(_engine, "_detectRect");
  var _resizePoints = dart.privateName(_engine, "_resizePoints");
  var _resizeVerbs = dart.privateName(_engine, "_resizeVerbs");
  var _resizeConicWeights = dart.privateName(_engine, "_resizeConicWeights");
  _engine.PathRef = class PathRef extends core.Object {
    get fBounds() {
      return this[fBounds];
    }
    set fBounds(value) {
      this[fBounds] = value;
    }
    get cachedBounds() {
      return this[cachedBounds];
    }
    set cachedBounds(value) {
      this[cachedBounds] = value;
    }
    get fPoints() {
      return this[fPoints];
    }
    set fPoints(value) {
      if (value == null) dart.nullFailed(I[295], 114, 15, "fPoints");
      this[fPoints] = value;
    }
    get fBoundsIsDirty() {
      return this[fBoundsIsDirty];
    }
    set fBoundsIsDirty(value) {
      if (value == null) dart.nullFailed(I[295], 830, 8, "fBoundsIsDirty");
      this[fBoundsIsDirty] = value;
    }
    get fIsFinite() {
      return this[fIsFinite];
    }
    set fIsFinite(value) {
      if (value == null) dart.nullFailed(I[295], 831, 8, "fIsFinite");
      this[fIsFinite] = value;
    }
    get fIsOval() {
      return this[fIsOval];
    }
    set fIsOval(value) {
      if (value == null) dart.nullFailed(I[295], 833, 8, "fIsOval");
      this[fIsOval] = value;
    }
    get fIsRRect() {
      return this[fIsRRect];
    }
    set fIsRRect(value) {
      if (value == null) dart.nullFailed(I[295], 834, 8, "fIsRRect");
      this[fIsRRect] = value;
    }
    get fIsRect() {
      return this[fIsRect];
    }
    set fIsRect(value) {
      if (value == null) dart.nullFailed(I[295], 835, 8, "fIsRect");
      this[fIsRect] = value;
    }
    get fRRectOrOvalIsCCW() {
      return this[fRRectOrOvalIsCCW];
    }
    set fRRectOrOvalIsCCW(value) {
      if (value == null) dart.nullFailed(I[295], 838, 8, "fRRectOrOvalIsCCW");
      this[fRRectOrOvalIsCCW] = value;
    }
    get fRRectOrOvalStartIdx() {
      return this[fRRectOrOvalStartIdx];
    }
    set fRRectOrOvalStartIdx(value) {
      if (value == null) dart.nullFailed(I[295], 839, 7, "fRRectOrOvalStartIdx");
      this[fRRectOrOvalStartIdx] = value;
    }
    get fSegmentMask() {
      return this[fSegmentMask];
    }
    set fSegmentMask(value) {
      if (value == null) dart.nullFailed(I[295], 840, 7, "fSegmentMask");
      this[fSegmentMask] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.PathRef.new();
    }
    static ['_#shallowCopy#tearOff'](ref) {
      if (ref == null) dart.nullFailed(I[295], 30, 31, "ref");
      return new _engine.PathRef.shallowCopy(ref);
    }
    static ['_#shiftedFrom#tearOff'](source, offsetX, offsetY) {
      if (source == null) dart.nullFailed(I[295], 58, 31, "source");
      if (offsetX == null) dart.nullFailed(I[295], 58, 46, "offsetX");
      if (offsetY == null) dart.nullFailed(I[295], 58, 62, "offsetY");
      return new _engine.PathRef.shiftedFrom(source, offsetX, offsetY);
    }
    [_resetFields]() {
      this.fBoundsIsDirty = true;
      this.fSegmentMask = 0;
      this.fIsOval = false;
      this.fIsRRect = false;
      this.fIsRect = false;
      this.fRRectOrOvalIsCCW = false;
      this.fRRectOrOvalStartIdx = 172;
      if (!dart.test(dart.fn(() => {
        this.debugValidate();
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[295], 131, 12, "() {\n      debugValidate();\n      return true;\n    }()");
    }
    setPoint(pointIndex, x, y) {
      if (pointIndex == null) dart.nullFailed(I[295], 138, 21, "pointIndex");
      if (x == null) dart.nullFailed(I[295], 138, 40, "x");
      if (y == null) dart.nullFailed(I[295], 138, 50, "y");
      if (!(dart.notNull(pointIndex) < dart.notNull(this[_fPointsLength]))) dart.assertFailed(null, I[295], 139, 12, "pointIndex < _fPointsLength");
      let index = dart.notNull(pointIndex) * 2;
      this.fPoints[$_set](index, x);
      this.fPoints[$_set](index + 1, y);
    }
    get points() {
      return this.fPoints;
    }
    get conicWeights() {
      return this[_conicWeights];
    }
    countPoints() {
      return this[_fPointsLength];
    }
    countVerbs() {
      return this[_fVerbsLength];
    }
    countWeights() {
      return this[_conicWeightsLength];
    }
    atVerb(index) {
      if (index == null) dart.nullFailed(I[295], 153, 18, "index");
      return this[_fVerbs][$_get](index);
    }
    atPoint(index) {
      if (index == null) dart.nullFailed(I[295], 157, 25, "index");
      return new ui.Offset.new(this.fPoints[$_get](dart.notNull(index) * 2), this.fPoints[$_get](dart.notNull(index) * 2 + 1));
    }
    pointXAt(index) {
      if (index == null) dart.nullFailed(I[295], 161, 23, "index");
      return this.fPoints[$_get](dart.notNull(index) * 2);
    }
    pointYAt(index) {
      if (index == null) dart.nullFailed(I[295], 163, 23, "index");
      return this.fPoints[$_get](dart.notNull(index) * 2 + 1);
    }
    atWeight(index) {
      if (index == null) dart.nullFailed(I[295], 165, 23, "index");
      return dart.nullCheck(this[_conicWeights])[$_get](index);
    }
    get isFinite() {
      if (dart.test(this.fBoundsIsDirty)) {
        this[_computeBounds]();
      }
      return this.fIsFinite;
    }
    get segmentMasks() {
      return this.fSegmentMask;
    }
    get isOval() {
      return dart.test(this.fIsOval) ? this.fRRectOrOvalStartIdx : -1;
    }
    get isOvalCCW() {
      return this.fRRectOrOvalIsCCW;
    }
    get isRRect() {
      return dart.test(this.fIsRRect) ? this.fRRectOrOvalStartIdx : -1;
    }
    get isRect() {
      return dart.test(this.fIsRect) ? this.fRRectOrOvalStartIdx : -1;
    }
    getRRect() {
      return dart.test(this.fIsRRect) ? this[_getRRect]() : null;
    }
    getRect() {
      if (dart.test(this.fIsRect)) {
        return new ui.Rect.fromLTRB(this.atPoint(0).dx, this.atPoint(0).dy, this.atPoint(1).dx, this.atPoint(2).dy);
      } else {
        return this[_fVerbsLength] === 4 ? this[_detectRect]() : null;
      }
    }
    get isRectCCW() {
      return this.fRRectOrOvalIsCCW;
    }
    get hasComputedBounds() {
      return !dart.test(this.fBoundsIsDirty);
    }
    getBounds() {
      if (dart.test(this.fBoundsIsDirty)) {
        this[_computeBounds]();
      }
      return dart.nullCheck(this.fBounds);
    }
    [_detectRect]() {
      if (!(this[_fVerbs][$_get](0) === 0)) dart.assertFailed(null, I[295], 223, 12, "_fVerbs[0] == SPath.kMoveVerb");
      let x0 = this.atPoint(0).dx;
      let y0 = this.atPoint(0).dy;
      let x1 = this.atPoint(1).dx;
      let y1 = this.atPoint(1).dy;
      if (this[_fVerbs][$_get](1) !== 1 || y1 != y0) {
        return null;
      }
      let width = dart.notNull(x1) - dart.notNull(x0);
      let x2 = this.atPoint(2).dx;
      let y2 = this.atPoint(2).dy;
      if (this[_fVerbs][$_get](2) !== 1 || x2 != x1) {
        return null;
      }
      let height = dart.notNull(y2) - dart.notNull(y1);
      let x3 = this.atPoint(3).dx;
      let y3 = this.atPoint(3).dy;
      if (this[_fVerbs][$_get](3) !== 1 || y3 != y2) {
        return null;
      }
      if (dart.notNull(x2) - dart.notNull(x3) !== width || dart.notNull(y3) - dart.notNull(y0) !== height) {
        return null;
      }
      let x = math.min(T$.double(), x0, x1);
      let y = math.min(T$.double(), y0, y2);
      return new ui.Rect.fromLTWH(x, y, width[$abs](), height[$abs]());
    }
    getStraightLine() {
      if (this[_fVerbsLength] !== 2 || this[_fVerbs][$_get](0) !== 0 || this[_fVerbs][$_get](1) !== 1) {
        return null;
      }
      let x0 = this.fPoints[$_get](0);
      let y0 = this.fPoints[$_get](1);
      let x1 = this.fPoints[$_get](2);
      let y1 = this.fPoints[$_get](3);
      if (y0 == y1 || x0 == x1) {
        return new ui.Rect.fromLTRB(x0, y0, x1, y1);
      }
      return null;
    }
    [_getRRect]() {
      let bounds = this.getBounds();
      let radii = G$.JSArrayOfRadius().of([]);
      let iter = new _engine.PathRefIterator.new(this);
      let pts = _native_typed_data.NativeFloat32List.new(8);
      let verb = iter.next(pts);
      if (!(0 === verb)) dart.assertFailed(null, I[295], 278, 12, "SPath.kMoveVerb == verb");
      let cornerIndex = 0;
      while ((verb = iter.next(pts)) !== 6) {
        if (3 === verb) {
          let controlPx = pts[$_get](2);
          let controlPy = pts[$_get](3);
          let vector1_0x = dart.notNull(controlPx) - dart.notNull(pts[$_get](0));
          let vector1_0y = dart.notNull(controlPy) - dart.notNull(pts[$_get](1));
          let vector2_1x = dart.notNull(pts[$_get](4)) - dart.notNull(pts[$_get](2));
          let vector2_1y = dart.notNull(pts[$_get](5)) - dart.notNull(pts[$_get](3));
          let dx = null;
          let dy = null;
          if (vector1_0x !== 0.0) {
            dx = vector1_0x[$abs]();
            dy = vector2_1y[$abs]();
          } else if (vector1_0y !== 0.0) {
            dx = vector2_1x[$abs]();
            dy = vector1_0y[$abs]();
          } else {
            dx = vector1_0x[$abs]();
            dy = vector1_0y[$abs]();
          }
          if (!dart.test(dart.fn(() => {
            let checkCornerIndex = dart.test(_engine.SPath.nearlyEqual(controlPx, bounds.left)) ? dart.test(_engine.SPath.nearlyEqual(controlPy, bounds.top)) ? 0 : 3 : dart.test(_engine.SPath.nearlyEqual(controlPy, bounds.top)) ? 1 : 2;
            return checkCornerIndex === cornerIndex;
          }, T$.VoidTobool())())) dart.assertFailed(null, I[295], 303, 16, "() {\n          final int checkCornerIndex = SPath.nearlyEqual(controlPx, bounds.left)\n              ? (SPath.nearlyEqual(controlPy, bounds.top)\n                  ? _Corner.kUpperLeft\n                  : _Corner.kLowerLeft)\n              : (SPath.nearlyEqual(controlPy, bounds.top)\n                  ? _Corner.kUpperRight\n                  : _Corner.kLowerRight);\n          return checkCornerIndex == cornerIndex;\n        }()");
          radii[$add](new ui.Radius.elliptical(dx, dy));
          cornerIndex = cornerIndex + 1;
        } else {
          if (!dart.test(dart.fn(() => {
            if (verb === 1) {
              let isVerticalOrHorizontal = dart.test(_engine.SPath.nearlyEqual(pts[$_get](2), pts[$_get](0))) || dart.test(_engine.SPath.nearlyEqual(pts[$_get](3), pts[$_get](1)));
              if (!isVerticalOrHorizontal) dart.assertFailed("An RRect path must only contain vertical and horizontal lines.", I[295], 322, 15, "isVerticalOrHorizontal");
            } else {
              if (!(verb === 5)) dart.assertFailed(null, I[295], 326, 20, "verb == SPath.kCloseVerb");
            }
            return true;
          }, T$.VoidTobool())())) dart.assertFailed(null, I[295], 316, 16, "() {\n          if (verb == SPath.kLineVerb) {\n            final bool isVerticalOrHorizontal =\n              SPath.nearlyEqual(pts[2], pts[0]) ||\n              SPath.nearlyEqual(pts[3], pts[1]);\n            assert(\n              isVerticalOrHorizontal,\n              'An RRect path must only contain vertical and horizontal lines.'\n            );\n          } else {\n            assert(verb == SPath.kCloseVerb);\n          }\n          return true;\n        }()");
        }
      }
      return new ui.RRect.fromRectAndCorners(bounds, {topLeft: radii[$_get](0), topRight: radii[$_get](1), bottomRight: radii[$_get](2), bottomLeft: radii[$_get](3)});
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$11.PathRef()[_is](other) && dart.test(this.equals(other));
    }
    get hashCode() {
      return core.Object.hash(this.fSegmentMask, this.fPoints, this[_conicWeights], this[_fVerbs]);
    }
    equals(ref) {
      if (ref == null) dart.nullFailed(I[295], 354, 23, "ref");
      if (this.fSegmentMask != ref.fSegmentMask) {
        return false;
      }
      let pointCount = this.countPoints();
      if (pointCount != ref.countPoints()) {
        return false;
      }
      let len = dart.notNull(pointCount) * 2;
      for (let i = 0; i < len; i = i + 1) {
        if (this.fPoints[$_get](i) != ref.fPoints[$_get](i)) {
          return false;
        }
      }
      if (this[_conicWeights] == null) {
        if (ref[_conicWeights] != null) {
          return false;
        }
      } else {
        if (ref[_conicWeights] == null) {
          return false;
        }
        let weightCount = dart.nullCheck(this[_conicWeights])[$length];
        if (dart.nullCheck(ref[_conicWeights])[$length] != weightCount) {
          return false;
        }
        for (let i = 0; i < dart.notNull(weightCount); i = i + 1) {
          if (dart.nullCheck(this[_conicWeights])[$_get](i) != dart.nullCheck(ref[_conicWeights])[$_get](i)) {
            return false;
          }
        }
      }
      let verbCount = this.countVerbs();
      if (verbCount != ref.countVerbs()) {
        return false;
      }
      for (let i = 0; i < dart.notNull(verbCount); i = i + 1) {
        if (this[_fVerbs][$_get](i) != ref[_fVerbs][$_get](i)) {
          return false;
        }
      }
      if (ref.countVerbs() === 0) {
        if (!(ref.countPoints() === 0)) dart.assertFailed(null, I[295], 402, 14, "ref.countPoints() == 0");
      }
      return true;
    }
    static _fPointsFromSource(source, offsetX, offsetY) {
      if (source == null) dart.nullFailed(I[295], 408, 15, "source");
      if (offsetX == null) dart.nullFailed(I[295], 408, 30, "offsetX");
      if (offsetY == null) dart.nullFailed(I[295], 408, 46, "offsetY");
      let sourceLength = source[_fPointsLength];
      let sourceCapacity = source[_fPointsCapacity];
      let dest = _native_typed_data.NativeFloat32List.new(dart.notNull(sourceCapacity) * 2);
      let sourcePoints = source.points;
      let len = dart.notNull(sourceLength) * 2;
      for (let i = 0; i < len; i = i + 2) {
        dest[$_set](i, dart.notNull(sourcePoints[$_get](i)) + dart.notNull(offsetX));
        dest[$_set](i + 1, dart.notNull(sourcePoints[$_get](i + 1)) + dart.notNull(offsetY));
      }
      return dest;
    }
    static _fVerbsFromSource(source) {
      if (source == null) dart.nullFailed(I[295], 421, 46, "source");
      let verbs = _native_typed_data.NativeUint8List.new(source[_fVerbsCapacity]);
      verbs[$setAll](0, source[_fVerbs]);
      return verbs;
    }
    copy(ref, additionalReserveVerbs, additionalReservePoints) {
      if (ref == null) dart.nullFailed(I[295], 429, 15, "ref");
      if (additionalReserveVerbs == null) dart.nullFailed(I[295], 429, 24, "additionalReserveVerbs");
      if (additionalReservePoints == null) dart.nullFailed(I[295], 429, 52, "additionalReservePoints");
      ref.debugValidate();
      let verbCount = ref.countVerbs();
      let pointCount = ref.countPoints();
      let weightCount = ref.countWeights();
      this.resetToSize(verbCount, pointCount, weightCount, additionalReserveVerbs, additionalReservePoints);
      this[_fVerbs][$setAll](0, ref[_fVerbs]);
      this.fPoints[$setAll](0, ref.fPoints);
      if (ref[_conicWeights] == null) {
        this[_conicWeights] = null;
      } else {
        dart.nullCheck(this[_conicWeights])[$setAll](0, dart.nullCheck(ref[_conicWeights]));
      }
      if (!(verbCount === 0 || this[_fVerbs][$_get](0) == ref[_fVerbs][$_get](0))) dart.assertFailed(null, I[295], 444, 12, "verbCount == 0 || _fVerbs[0] == ref._fVerbs[0]");
      this.fBoundsIsDirty = ref.fBoundsIsDirty;
      if (!dart.test(this.fBoundsIsDirty)) {
        this.fBounds = ref.fBounds;
        this.cachedBounds = ref.cachedBounds;
        this.fIsFinite = ref.fIsFinite;
      }
      this.fSegmentMask = ref.fSegmentMask;
      this.fIsOval = ref.fIsOval;
      this.fIsRRect = ref.fIsRRect;
      this.fIsRect = ref.fIsRect;
      this.fRRectOrOvalIsCCW = ref.fRRectOrOvalIsCCW;
      this.fRRectOrOvalStartIdx = ref.fRRectOrOvalStartIdx;
      this.debugValidate();
    }
    [_resizePoints](newLength) {
      if (newLength == null) dart.nullFailed(I[295], 460, 26, "newLength");
      if (dart.notNull(newLength) > dart.notNull(this[_fPointsCapacity])) {
        this[_fPointsCapacity] = dart.notNull(newLength) + 10;
        let newPoints = _native_typed_data.NativeFloat32List.new(dart.notNull(this[_fPointsCapacity]) * 2);
        newPoints[$setAll](0, this.fPoints);
        this.fPoints = newPoints;
      }
      this[_fPointsLength] = newLength;
    }
    [_resizeVerbs](newLength) {
      if (newLength == null) dart.nullFailed(I[295], 470, 25, "newLength");
      if (dart.notNull(newLength) > dart.notNull(this[_fVerbsCapacity])) {
        this[_fVerbsCapacity] = dart.notNull(newLength) + 8;
        let newVerbs = _native_typed_data.NativeUint8List.new(this[_fVerbsCapacity]);
        newVerbs[$setAll](0, this[_fVerbs]);
        this[_fVerbs] = newVerbs;
      }
      this[_fVerbsLength] = newLength;
    }
    [_resizeConicWeights](newLength) {
      if (newLength == null) dart.nullFailed(I[295], 480, 32, "newLength");
      if (dart.notNull(newLength) > dart.notNull(this[_conicWeightsCapacity])) {
        this[_conicWeightsCapacity] = dart.notNull(newLength) + 4;
        let newWeights = _native_typed_data.NativeFloat32List.new(this[_conicWeightsCapacity]);
        if (this[_conicWeights] != null) {
          newWeights[$setAll](0, dart.nullCheck(this[_conicWeights]));
        }
        this[_conicWeights] = newWeights;
      }
      this[_conicWeightsLength] = newLength;
    }
    append(source) {
      if (source == null) dart.nullFailed(I[295], 492, 23, "source");
      let pointCount = source.countPoints();
      let curLength = this[_fPointsLength];
      let newPointCount = dart.notNull(curLength) + dart.notNull(pointCount);
      this.startEdit();
      this[_resizePoints](newPointCount);
      let sourcePoints = source.points;
      for (let source = dart.notNull(pointCount) * 2 - 1, dst = newPointCount * 2 - 1; source >= 0; source = source - 1, dst = dst - 1) {
        this.fPoints[$_set](dst, sourcePoints[$_get](source));
      }
      let verbCount = this.countVerbs();
      let newVerbCount = source.countVerbs();
      this[_resizeVerbs](dart.notNull(verbCount) + dart.notNull(newVerbCount));
      for (let i = 0; i < dart.notNull(newVerbCount); i = i + 1) {
        this[_fVerbs][$_set](dart.notNull(verbCount) + i, source[_fVerbs][$_get](i));
      }
      if (source[_conicWeights] != null) {
        let weightCount = this.countWeights();
        let newWeightCount = source.countWeights();
        this[_resizeConicWeights](dart.notNull(weightCount) + dart.notNull(newWeightCount));
        let sourceWeights = dart.nullCheck(source[_conicWeights]);
        let dest = dart.nullCheck(this[_conicWeights]);
        for (let i = 0; i < dart.notNull(newWeightCount); i = i + 1) {
          dest[$_set](dart.notNull(weightCount) + i, sourceWeights[$_get](i));
        }
      }
      this.fBoundsIsDirty = true;
    }
    computeSegmentMask() {
      let verbs = this[_fVerbs];
      let mask = 0;
      let verbCount = this.countVerbs();
      for (let i = 0; i < dart.notNull(verbCount); i = i + 1) {
        switch (verbs[$_get](i)) {
          case 1:
            {
              mask = (mask | 1) >>> 0;
              break;
            }
          case 2:
            {
              mask = (mask | 2) >>> 0;
              break;
            }
          case 3:
            {
              mask = (mask | 4) >>> 0;
              break;
            }
          case 4:
            {
              mask = (mask | 8) >>> 0;
              break;
            }
          default:
            {
              break;
            }
        }
      }
      return mask;
    }
    static interpolate(ending, weight, out) {
      if (ending == null) dart.nullFailed(I[295], 548, 35, "ending");
      if (weight == null) dart.nullFailed(I[295], 548, 50, "weight");
      if (out == null) dart.nullFailed(I[295], 548, 66, "out");
      if (!(out.countPoints() == ending.countPoints())) dart.assertFailed(null, I[295], 549, 12, "out.countPoints() == ending.countPoints()");
      let count = dart.notNull(out.countPoints()) * 2;
      let outValues = out.points;
      let inValues = ending.points;
      for (let index = 0; index < count; index = index + 1) {
        outValues[$_set](index, dart.notNull(outValues[$_get](index)) * dart.notNull(weight) + dart.notNull(inValues[$_get](index)) * (1.0 - dart.notNull(weight)));
      }
      out.fBoundsIsDirty = true;
      out.startEdit();
    }
    [_computeBounds]() {
      this.debugValidate();
      if (!dart.test(this.fBoundsIsDirty)) dart.assertFailed(null, I[295], 566, 12, "fBoundsIsDirty");
      let pointCount = this.countPoints();
      this.fBoundsIsDirty = false;
      this.cachedBounds = null;
      let accum = 0.0;
      if (pointCount === 0) {
        this.fBounds = ui.Rect.zero;
        this.fIsFinite = true;
      } else {
        let minX = null;
        let maxX = null;
        let minY = null;
        let maxY = null;
        minX = maxX = this.fPoints[$_get](0);
        accum = accum * dart.notNull(minX);
        minY = maxY = this.fPoints[$_get](1);
        accum = accum * dart.notNull(minY);
        let len = 2 * dart.notNull(pointCount);
        for (let i = 2; i < len; i = i + 2) {
          let x = this.fPoints[$_get](i);
          accum = accum * dart.notNull(x);
          let y = this.fPoints[$_get](i + 1);
          accum = accum * dart.notNull(y);
          minX = math.min(T$.double(), minX, x);
          minY = math.min(T$.double(), minY, y);
          maxX = math.max(T$.double(), maxX, x);
          maxY = math.max(T$.double(), maxY, y);
        }
        let allFinite = accum * 0 === 0;
        if (allFinite) {
          this.fBounds = new ui.Rect.fromLTRB(minX, minY, maxX, maxY);
          this.fIsFinite = true;
        } else {
          this.fBounds = ui.Rect.zero;
          this.fIsFinite = false;
        }
      }
    }
    rewind() {
      this[_fPointsLength] = 0;
      this[_fVerbsLength] = 0;
      this[_conicWeightsLength] = 0;
      this[_resetFields]();
    }
    resetToSize(verbCount, pointCount, conicCount, reserveVerbs = 0, reservePoints = 0) {
      if (verbCount == null) dart.nullFailed(I[295], 613, 24, "verbCount");
      if (pointCount == null) dart.nullFailed(I[295], 613, 39, "pointCount");
      if (conicCount == null) dart.nullFailed(I[295], 613, 55, "conicCount");
      if (reserveVerbs == null) dart.nullFailed(I[295], 614, 12, "reserveVerbs");
      if (reservePoints == null) dart.nullFailed(I[295], 614, 34, "reservePoints");
      this.debugValidate();
      this.fBoundsIsDirty = true;
      this.fSegmentMask = 0;
      this.startEdit();
      this[_resizePoints](dart.notNull(pointCount) + dart.notNull(reservePoints));
      this[_resizeVerbs](dart.notNull(verbCount) + dart.notNull(reserveVerbs));
      this[_resizeConicWeights](conicCount);
      this.debugValidate();
    }
    growForVerb(verb, weight) {
      if (verb == null) dart.nullFailed(I[295], 630, 23, "verb");
      if (weight == null) dart.nullFailed(I[295], 630, 36, "weight");
      this.debugValidate();
      let pCnt = null;
      let mask = 0;
      let throwError = null;
      switch (verb) {
        case 0:
          {
            pCnt = 1;
            break;
          }
        case 1:
          {
            mask = 1;
            pCnt = 1;
            break;
          }
        case 2:
          {
            mask = 2;
            pCnt = 2;
            break;
          }
        case 3:
          {
            mask = 4;
            pCnt = 2;
            break;
          }
        case 4:
          {
            mask = 8;
            pCnt = 3;
            break;
          }
        case 5:
          {
            pCnt = 0;
            break;
          }
        case 6:
          {
            if (!dart.test(dart.fn(() => {
              throwError = "growForVerb called for kDone";
              return true;
            }, T$.VoidTobool())())) dart.assertFailed(null, I[295], 653, 16, "() {\n          throwError = 'growForVerb called for kDone';\n          return true;\n        }()");
            pCnt = 0;
            break;
          }
        default:
          {
            if (!dart.test(dart.fn(() => {
              throwError = "growForVerb called for unknown verb";
              return true;
            }, T$.VoidTobool())())) dart.assertFailed(null, I[295], 659, 16, "() {\n          throwError = 'growForVerb called for unknown verb';\n          return true;\n        }()");
            pCnt = 0;
          }
      }
      if (throwError != null) {
        dart.throw(core.Exception.new(throwError));
      }
      this.fSegmentMask = (dart.notNull(this.fSegmentMask) | mask) >>> 0;
      this.fBoundsIsDirty = true;
      this.startEdit();
      let verbCount = this.countVerbs();
      this[_resizeVerbs](dart.notNull(verbCount) + 1);
      this[_fVerbs][$_set](verbCount, verb);
      if (3 === verb) {
        let weightCount = this.countWeights();
        this[_resizeConicWeights](dart.notNull(weightCount) + 1);
        dart.nullCheck(this[_conicWeights])[$_set](weightCount, weight);
      }
      let ptsIndex = this[_fPointsLength];
      this[_resizePoints](dart.notNull(ptsIndex) + dart.notNull(pCnt));
      this.debugValidate();
      return ptsIndex;
    }
    growForRepeatedVerb(verb, numVbs) {
      if (verb == null) dart.nullFailed(I[295], 695, 48, "verb");
      if (numVbs == null) dart.nullFailed(I[295], 695, 58, "numVbs");
      this.debugValidate();
      this.startEdit();
      let pCnt = null;
      let mask = 0;
      let throwError = null;
      switch (verb) {
        case 0:
          {
            pCnt = numVbs;
            break;
          }
        case 1:
          {
            mask = 1;
            pCnt = numVbs;
            break;
          }
        case 2:
          {
            mask = 2;
            pCnt = 2 * dart.notNull(numVbs);
            break;
          }
        case 3:
          {
            mask = 4;
            pCnt = 2 * dart.notNull(numVbs);
            break;
          }
        case 4:
          {
            mask = 8;
            pCnt = 3 * dart.notNull(numVbs);
            break;
          }
        case 5:
          {
            pCnt = 0;
            break;
          }
        case 6:
          {
            if (!dart.test(dart.fn(() => {
              throwError = "growForVerb called for kDone";
              return true;
            }, T$.VoidTobool())())) dart.assertFailed(null, I[295], 719, 16, "() {\n          throwError = 'growForVerb called for kDone';\n          return true;\n        }()");
            pCnt = 0;
            break;
          }
        default:
          {
            if (!dart.test(dart.fn(() => {
              throwError = "growForVerb called for unknown verb";
              return true;
            }, T$.VoidTobool())())) dart.assertFailed(null, I[295], 725, 16, "() {\n          throwError = 'growForVerb called for unknown verb';\n          return true;\n        }()");
            pCnt = 0;
          }
      }
      if (throwError != null) {
        dart.throw(core.Exception.new(throwError));
      }
      this.fSegmentMask = (dart.notNull(this.fSegmentMask) | mask) >>> 0;
      this.fBoundsIsDirty = true;
      this.startEdit();
      if (3 === verb) {
        this[_resizeConicWeights](dart.notNull(this.countWeights()) + dart.notNull(numVbs));
      }
      let verbCount = this.countVerbs();
      this[_resizeVerbs](dart.notNull(verbCount) + dart.notNull(numVbs));
      for (let i = 0; i < dart.notNull(numVbs); i = i + 1) {
        this[_fVerbs][$_set](dart.notNull(verbCount) + i, verb);
      }
      let ptsIndex = this[_fPointsLength];
      this[_resizePoints](dart.notNull(ptsIndex) + dart.notNull(pCnt));
      this.debugValidate();
      return ptsIndex;
    }
    growForVerbsInPath(path) {
      if (path == null) dart.nullFailed(I[295], 759, 35, "path");
      this.debugValidate();
      this.startEdit();
      this.fSegmentMask = (dart.notNull(this.fSegmentMask) | dart.notNull(path.fSegmentMask)) >>> 0;
      this.fBoundsIsDirty = true;
      let numVerbs = path.countVerbs();
      if (numVerbs !== 0) {
        let curLength = this.countVerbs();
        this[_resizePoints](dart.notNull(curLength) + dart.notNull(numVerbs));
        this[_fVerbs][$setAll](curLength, path[_fVerbs]);
      }
      let numPts = path.countPoints();
      if (numPts !== 0) {
        let curLength = this.countPoints();
        this[_resizePoints](dart.notNull(curLength) + dart.notNull(numPts));
        this.fPoints[$setAll](dart.notNull(curLength) * 2, path.fPoints);
      }
      let numConics = path.countWeights();
      if (numConics !== 0) {
        let curLength = this.countWeights();
        this[_resizeConicWeights](dart.notNull(curLength) + dart.notNull(numConics));
        let sourceWeights = dart.nullCheck(path[_conicWeights]);
        let destWeights = dart.nullCheck(this[_conicWeights]);
        for (let i = 0; i < dart.notNull(numConics); i = i + 1) {
          destWeights[$_set](dart.notNull(curLength) + i, sourceWeights[$_get](i));
        }
      }
      this.debugValidate();
    }
    startEdit() {
      this.fIsOval = false;
      this.fIsRRect = false;
      this.fIsRect = false;
      this.cachedBounds = null;
      this.fBoundsIsDirty = true;
    }
    setIsOval(isOval, isCCW, start) {
      if (isOval == null) dart.nullFailed(I[295], 805, 23, "isOval");
      if (isCCW == null) dart.nullFailed(I[295], 805, 36, "isCCW");
      if (start == null) dart.nullFailed(I[295], 805, 47, "start");
      this.fIsOval = isOval;
      this.fRRectOrOvalIsCCW = isCCW;
      this.fRRectOrOvalStartIdx = start;
    }
    setIsRRect(isRRect, isCCW, start, rrect) {
      if (isRRect == null) dart.nullFailed(I[295], 811, 24, "isRRect");
      if (isCCW == null) dart.nullFailed(I[295], 811, 38, "isCCW");
      if (start == null) dart.nullFailed(I[295], 811, 49, "start");
      if (rrect == null) dart.nullFailed(I[295], 811, 65, "rrect");
      this.fIsRRect = isRRect;
      this.fRRectOrOvalIsCCW = isCCW;
      this.fRRectOrOvalStartIdx = start;
    }
    setIsRect(isRect, isCCW, start) {
      if (isRect == null) dart.nullFailed(I[295], 817, 23, "isRect");
      if (isCCW == null) dart.nullFailed(I[295], 817, 36, "isCCW");
      if (start == null) dart.nullFailed(I[295], 817, 47, "start");
      this.fIsRect = isRect;
      this.fRRectOrOvalIsCCW = isCCW;
      this.fRRectOrOvalStartIdx = start;
    }
    getPoints() {
      this.debugValidate();
      return this.fPoints;
    }
    get isValid() {
      if (dart.test(this.fIsOval) || dart.test(this.fIsRRect)) {
        if (this.fIsOval == this.fIsRRect) {
          return false;
        }
        if (dart.test(this.fIsOval)) {
          if (dart.notNull(this.fRRectOrOvalStartIdx) >= 4) {
            return false;
          }
        } else {
          if (dart.notNull(this.fRRectOrOvalStartIdx) >= 8) {
            return false;
          }
        }
      }
      if (dart.test(this.fIsRect)) {
        if (dart.test(this.fIsOval) || dart.test(this.fIsRRect)) {
          return false;
        }
        if (dart.notNull(this.fRRectOrOvalStartIdx) >= 4) {
          return false;
        }
      }
      if (!dart.test(this.fBoundsIsDirty) && !dart.test(dart.nullCheck(this.fBounds).isEmpty)) {
        let isFinite = true;
        let bounds = dart.nullCheck(this.fBounds);
        let boundsLeft = bounds.left;
        let boundsTop = bounds.top;
        let boundsRight = bounds.right;
        let boundsBottom = bounds.bottom;
        let len = dart.notNull(this[_fPointsLength]) * 2;
        for (let i = 0; i < len; i = i + 2) {
          let pointX = this.fPoints[$_get](i);
          let pointY = this.fPoints[$_get](i + 1);
          let pointIsFinite = pointX[$isFinite] && pointY[$isFinite];
          if (pointIsFinite && (dart.notNull(pointX) + 0.0001 < dart.notNull(boundsLeft) || dart.notNull(pointY) + 0.0001 < dart.notNull(boundsTop) || dart.notNull(pointX) - 0.0001 > dart.notNull(boundsRight) || dart.notNull(pointY) - 0.0001 > dart.notNull(boundsBottom))) {
            return false;
          }
          if (!pointIsFinite) {
            isFinite = false;
          }
        }
        if (this.fIsFinite !== isFinite) {
          return false;
        }
      }
      return true;
    }
    get isEmpty() {
      return this.countVerbs() === 0;
    }
    debugValidate() {
      if (!dart.test(this.isValid)) dart.assertFailed(null, I[295], 902, 12, "isValid");
    }
    findMaxY(pointIndex, count) {
      if (pointIndex == null) dart.nullFailed(I[295], 906, 20, "pointIndex");
      if (count == null) dart.nullFailed(I[295], 906, 36, "count");
      if (!(dart.notNull(count) > 0)) dart.assertFailed(null, I[295], 907, 12, "count > 0");
      let max = this.fPoints[$_get](dart.notNull(pointIndex) * 2 + 1);
      let firstIndex = pointIndex;
      for (let i = 1; i < dart.notNull(count); i = i + 1) {
        let y = this.fPoints[$_get]((dart.notNull(pointIndex) + i) * 2);
        if (dart.notNull(y) > dart.notNull(max)) {
          max = y;
          firstIndex = dart.notNull(pointIndex) + i;
        }
      }
      return firstIndex;
    }
    findDiffPoint(index, n, inc) {
      if (index == null) dart.nullFailed(I[295], 925, 25, "index");
      if (n == null) dart.nullFailed(I[295], 925, 36, "n");
      if (inc == null) dart.nullFailed(I[295], 925, 43, "inc");
      let i = index;
      for (;;) {
        i = (dart.notNull(i) + dart.notNull(inc))[$modulo](n);
        if (i == index) {
          break;
        }
        if (this.fPoints[$_get](dart.notNull(index) * 2) != this.fPoints[$_get](dart.notNull(i) * 2) || this.fPoints[$_get](dart.notNull(index) * 2 + 1) != this.fPoints[$_get](dart.notNull(i) * 2 + 1)) {
          break;
        }
      }
      return i;
    }
  };
  (_engine.PathRef.new = function() {
    this[fBounds] = null;
    this[cachedBounds] = null;
    this[_fPointsCapacity] = 0;
    this[_fPointsLength] = 0;
    this[_fVerbsCapacity] = 0;
    this[_fVerbsLength] = 0;
    this[_conicWeightsCapacity] = 0;
    this[_conicWeights] = null;
    this[_conicWeightsLength] = 0;
    this[fBoundsIsDirty] = true;
    this[fIsFinite] = true;
    this[fIsOval] = false;
    this[fIsRRect] = false;
    this[fIsRect] = false;
    this[fRRectOrOvalIsCCW] = false;
    this[fRRectOrOvalStartIdx] = -1;
    this[fSegmentMask] = 0;
    this[fPoints] = _native_typed_data.NativeFloat32List.new(8 * 2);
    this[_fVerbs] = _native_typed_data.NativeUint8List.new(8);
    this[_fPointsCapacity] = 8;
    this[_fVerbsCapacity] = 8;
    this[_resetFields]();
  }).prototype = _engine.PathRef.prototype;
  (_engine.PathRef.shallowCopy = function(ref) {
    if (ref == null) dart.nullFailed(I[295], 30, 31, "ref");
    this[fBounds] = null;
    this[cachedBounds] = null;
    this[_fPointsCapacity] = 0;
    this[_fPointsLength] = 0;
    this[_fVerbsCapacity] = 0;
    this[_fVerbsLength] = 0;
    this[_conicWeightsCapacity] = 0;
    this[_conicWeights] = null;
    this[_conicWeightsLength] = 0;
    this[fBoundsIsDirty] = true;
    this[fIsFinite] = true;
    this[fIsOval] = false;
    this[fIsRRect] = false;
    this[fIsRect] = false;
    this[fRRectOrOvalIsCCW] = false;
    this[fRRectOrOvalStartIdx] = -1;
    this[fSegmentMask] = 0;
    this[fPoints] = ref.fPoints;
    this[_fVerbs] = ref[_fVerbs];
    this[_fVerbsCapacity] = ref[_fVerbsCapacity];
    this[_fVerbsLength] = ref[_fVerbsLength];
    this[_fPointsCapacity] = ref[_fPointsCapacity];
    this[_fPointsLength] = ref[_fPointsLength];
    this[_conicWeightsCapacity] = ref[_conicWeightsCapacity];
    this[_conicWeightsLength] = ref[_conicWeightsLength];
    this[_conicWeights] = ref[_conicWeights];
    this.fBoundsIsDirty = ref.fBoundsIsDirty;
    if (!dart.test(this.fBoundsIsDirty)) {
      this.fBounds = ref.fBounds;
      this.cachedBounds = ref.cachedBounds;
      this.fIsFinite = ref.fIsFinite;
    }
    this.fSegmentMask = ref.fSegmentMask;
    this.fIsOval = ref.fIsOval;
    this.fIsRRect = ref.fIsRRect;
    this.fIsRect = ref.fIsRect;
    this.fRRectOrOvalIsCCW = ref.fRRectOrOvalIsCCW;
    this.fRRectOrOvalStartIdx = ref.fRRectOrOvalStartIdx;
    this.debugValidate();
  }).prototype = _engine.PathRef.prototype;
  (_engine.PathRef.shiftedFrom = function(source, offsetX, offsetY) {
    let t$36540;
    if (source == null) dart.nullFailed(I[295], 58, 31, "source");
    if (offsetX == null) dart.nullFailed(I[295], 58, 46, "offsetX");
    if (offsetY == null) dart.nullFailed(I[295], 58, 62, "offsetY");
    this[fBounds] = null;
    this[cachedBounds] = null;
    this[_fPointsCapacity] = 0;
    this[_fPointsLength] = 0;
    this[_fVerbsCapacity] = 0;
    this[_fVerbsLength] = 0;
    this[_conicWeightsCapacity] = 0;
    this[_conicWeights] = null;
    this[_conicWeightsLength] = 0;
    this[fBoundsIsDirty] = true;
    this[fIsFinite] = true;
    this[fIsOval] = false;
    this[fIsRRect] = false;
    this[fIsRect] = false;
    this[fRRectOrOvalIsCCW] = false;
    this[fRRectOrOvalStartIdx] = -1;
    this[fSegmentMask] = 0;
    this[fPoints] = _engine.PathRef._fPointsFromSource(source, offsetX, offsetY);
    this[_fVerbs] = _engine.PathRef._fVerbsFromSource(source);
    this[_conicWeightsCapacity] = source[_conicWeightsCapacity];
    this[_conicWeightsLength] = source[_conicWeightsLength];
    if (source[_conicWeights] != null) {
      this[_conicWeights] = _native_typed_data.NativeFloat32List.new(this[_conicWeightsCapacity]);
      dart.nullCheck(this[_conicWeights])[$setAll](0, dart.nullCheck(source[_conicWeights]));
    }
    this[_fVerbsCapacity] = source[_fVerbsCapacity];
    this[_fVerbsLength] = source[_fVerbsLength];
    this[_fPointsCapacity] = source[_fPointsCapacity];
    this[_fPointsLength] = source[_fPointsLength];
    this.fBoundsIsDirty = source.fBoundsIsDirty;
    if (!dart.test(this.fBoundsIsDirty)) {
      this.fBounds = dart.nullCheck(source.fBounds).translate(offsetX, offsetY);
      this.cachedBounds = (t$36540 = source.cachedBounds, t$36540 == null ? null : t$36540.translate(offsetX, offsetY));
      this.fIsFinite = source.fIsFinite;
    }
    this.fSegmentMask = source.fSegmentMask;
    this.fIsOval = source.fIsOval;
    this.fIsRRect = source.fIsRRect;
    this.fIsRect = source.fIsRect;
    this.fRRectOrOvalIsCCW = source.fRRectOrOvalIsCCW;
    this.fRRectOrOvalStartIdx = source.fRRectOrOvalStartIdx;
    this.debugValidate();
  }).prototype = _engine.PathRef.prototype;
  dart.addRtiResources(_engine.PathRef, ["_engine|PathRef"]);
  dart.setMethodSignature(_engine.PathRef, () => dart.global.Object.setPrototypeOf({
    [_resetFields]: T$.VoidTovoid(),
    setPoint: T$11.intAnddoubleAnddoubleTovoid(),
    countPoints: T$.VoidToint(),
    countVerbs: T$.VoidToint(),
    countWeights: T$.VoidToint(),
    atVerb: T$.intToint(),
    atPoint: T$11.intToOffset(),
    pointXAt: T$0.intTodouble(),
    pointYAt: T$0.intTodouble(),
    atWeight: T$0.intTodouble(),
    getRRect: T$11.VoidToRRectN(),
    getRect: T$11.VoidToRectN(),
    getBounds: T$9.VoidToRect$1(),
    [_detectRect]: T$11.VoidToRectN(),
    getStraightLine: T$11.VoidToRectN(),
    [_getRRect]: T$8.VoidToRRect(),
    equals: T$11.PathRefTobool(),
    copy: T$11.PathRefAndintAndintTovoid(),
    [_resizePoints]: T$.intTovoid(),
    [_resizeVerbs]: T$.intTovoid(),
    [_resizeConicWeights]: T$.intTovoid(),
    append: T$11.PathRefTovoid(),
    computeSegmentMask: T$.VoidToint(),
    [_computeBounds]: T$.VoidTovoid(),
    rewind: T$.VoidTovoid(),
    resetToSize: T$11.intAndintAndint__Tovoid$28(),
    growForVerb: T$11.intAnddoubleToint(),
    growForRepeatedVerb: T$.intAndintToint(),
    growForVerbsInPath: T$11.PathRefTovoid(),
    startEdit: T$.VoidTovoid(),
    setIsOval: T$11.boolAndboolAndintTovoid(),
    setIsRRect: T$11.boolAndboolAndint__Tovoid(),
    setIsRect: T$11.boolAndboolAndintTovoid(),
    getPoints: T$0.VoidToFloat32List(),
    debugValidate: T$.VoidTovoid(),
    findMaxY: T$.intAndintToint(),
    findDiffPoint: T$.intAndintAndintToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PathRef))));
  dart.setStaticMethodSignature(_engine.PathRef, () => ['_fPointsFromSource', '_fVerbsFromSource', 'interpolate']);
  dart.setGetterSignature(_engine.PathRef, () => dart.global.Object.setPrototypeOf({
    points: T$0.Float32List(),
    conicWeights: T$5.Float32ListN(),
    isFinite: T$.bool(),
    segmentMasks: T$.int(),
    isOval: T$.int(),
    isOvalCCW: T$.bool(),
    isRRect: T$.int(),
    isRect: T$.int(),
    isRectCCW: T$.bool(),
    hasComputedBounds: T$.bool(),
    isValid: T$.bool(),
    isEmpty: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PathRef))));
  dart.setLibraryUri(_engine.PathRef, I[220]);
  dart.setFieldSignature(_engine.PathRef, () => dart.global.Object.setPrototypeOf({
    fBounds: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    cachedBounds: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_fPointsCapacity]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_fPointsLength]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_fVerbsCapacity]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    fPoints: {type: T$0.Float32List(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_fVerbs]: {type: T$.Uint8List(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_fVerbsLength]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_conicWeightsCapacity]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_conicWeights]: {type: T$5.Float32ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_conicWeightsLength]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    fBoundsIsDirty: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    fIsFinite: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    fIsOval: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    fIsRRect: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    fIsRect: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    fRRectOrOvalIsCCW: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    fRRectOrOvalStartIdx: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    fSegmentMask: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PathRef))));
  dart.setStaticFieldSignature(_engine.PathRef, () => ['kInitialLastMoveToIndex', 'kLegacyRRectOrOvalStartIdx_SerializationShift', 'kLegacyRRectOrOvalIsCCW_SerializationShift', 'kLegacyIsRRect_SerializationShift', 'kIsFinite_SerializationShift', 'kLegacyIsOval_SerializationShift', 'kSegmentMask_SerializationShift', 'kInitialPointsCapacity', 'kInitialVerbsCapacity', 'kMinSize']);
  dart.defineExtensionMethods(_engine.PathRef, ['_equals']);
  dart.defineExtensionAccessors(_engine.PathRef, ['hashCode']);
  dart.defineLazy(_engine.PathRef, {
    /*_engine.PathRef.kInitialLastMoveToIndex*/get kInitialLastMoveToIndex() {
      return -1;
    },
    /*_engine.PathRef.kLegacyRRectOrOvalStartIdx_SerializationShift*/get kLegacyRRectOrOvalStartIdx_SerializationShift() {
      return 28;
    },
    /*_engine.PathRef.kLegacyRRectOrOvalIsCCW_SerializationShift*/get kLegacyRRectOrOvalIsCCW_SerializationShift() {
      return 27;
    },
    /*_engine.PathRef.kLegacyIsRRect_SerializationShift*/get kLegacyIsRRect_SerializationShift() {
      return 26;
    },
    /*_engine.PathRef.kIsFinite_SerializationShift*/get kIsFinite_SerializationShift() {
      return 25;
    },
    /*_engine.PathRef.kLegacyIsOval_SerializationShift*/get kLegacyIsOval_SerializationShift() {
      return 24;
    },
    /*_engine.PathRef.kSegmentMask_SerializationShift*/get kSegmentMask_SerializationShift() {
      return 0;
    },
    /*_engine.PathRef.kInitialPointsCapacity*/get kInitialPointsCapacity() {
      return 8;
    },
    /*_engine.PathRef.kInitialVerbsCapacity*/get kInitialVerbsCapacity() {
      return 8;
    },
    /*_engine.PathRef.kMinSize*/get kMinSize() {
      return 256;
    }
  }, false);
  var pathRef$0 = dart.privateName(_engine, "PathRefIterator.pathRef");
  var iterIndex = dart.privateName(_engine, "PathRefIterator.iterIndex");
  _engine.PathRefIterator = class PathRefIterator extends core.Object {
    get pathRef() {
      return this[pathRef$0];
    }
    set pathRef(value) {
      super.pathRef = value;
    }
    get iterIndex() {
      return this[iterIndex];
    }
    set iterIndex(value) {
      if (value == null) dart.nullFailed(I[295], 961, 7, "iterIndex");
      this[iterIndex] = value;
    }
    static ['_#new#tearOff'](pathRef) {
      if (pathRef == null) dart.nullFailed(I[295], 944, 24, "pathRef");
      return new _engine.PathRefIterator.new(pathRef);
    }
    get pointIndex() {
      return (dart.notNull(this[_pointIndex]) / 2)[$truncate]();
    }
    skipToNextContour() {
      let verb = -1;
      let curPointIndex = this[_pointIndex];
      do {
        curPointIndex = this[_pointIndex];
        verb = this.nextIndex();
      } while (verb !== 6 && (this.iterIndex === 0 || verb !== 0));
      return (dart.notNull(verb === 6 ? this[_pointIndex] : curPointIndex) / 2)[$truncate]();
    }
    nextIndex() {
      let t$36540;
      if (this[_verbIndex] == this.pathRef.countVerbs()) {
        return 6;
      }
      let verb = this.pathRef[_fVerbs][$_get]((t$36540 = this[_verbIndex], this[_verbIndex] = dart.notNull(t$36540) + 1, t$36540));
      switch (verb) {
        case 0:
          {
            this.iterIndex = this[_pointIndex];
            this[_pointIndex] = dart.notNull(this[_pointIndex]) + 2;
            break;
          }
        case 1:
          {
            this.iterIndex = dart.notNull(this[_pointIndex]) - 2;
            this[_pointIndex] = dart.notNull(this[_pointIndex]) + 2;
            break;
          }
        case 3:
          {
            this[_conicWeightIndex] = dart.notNull(this[_conicWeightIndex]) + 1;
            this.iterIndex = dart.notNull(this[_pointIndex]) - 2;
            this[_pointIndex] = dart.notNull(this[_pointIndex]) + 4;
            break;
          }
        case 2:
          {
            this.iterIndex = dart.notNull(this[_pointIndex]) - 2;
            this[_pointIndex] = dart.notNull(this[_pointIndex]) + 4;
            break;
          }
        case 4:
          {
            this.iterIndex = dart.notNull(this[_pointIndex]) - 2;
            this[_pointIndex] = dart.notNull(this[_pointIndex]) + 6;
            break;
          }
        case 5:
          {
            break;
          }
        case 6:
          {
            if (!(this[_verbIndex] == this.pathRef.countVerbs())) dart.assertFailed(null, I[295], 1009, 16, "_verbIndex == pathRef.countVerbs()");
            break;
          }
        default:
          {
            dart.throw(new core.FormatException.new("Unsupport Path verb " + dart.str(verb)));
          }
      }
      return verb;
    }
    next(outPts) {
      let t$36540, t$36540$, t$36540$0, t$36540$1, t$36540$2, t$36540$3, t$36540$4, t$36540$5, t$36540$6, t$36540$7, t$36540$8, t$36540$9, t$36540$10, t$36540$11, t$36540$12, t$36540$13, t$36540$14, t$36540$15, t$36540$16;
      if (outPts == null) dart.nullFailed(I[295], 1017, 24, "outPts");
      if (this[_verbIndex] == this.pathRef.countVerbs()) {
        return 6;
      }
      let verb = this.pathRef[_fVerbs][$_get]((t$36540 = this[_verbIndex], this[_verbIndex] = dart.notNull(t$36540) + 1, t$36540));
      let points = this.pathRef.points;
      let pointIndex = this[_pointIndex];
      switch (verb) {
        case 0:
          {
            outPts[$_set](0, points[$_get]((t$36540$ = pointIndex, pointIndex = dart.notNull(t$36540$) + 1, t$36540$)));
            outPts[$_set](1, points[$_get]((t$36540$0 = pointIndex, pointIndex = dart.notNull(t$36540$0) + 1, t$36540$0)));
            break;
          }
        case 1:
          {
            outPts[$_set](0, points[$_get](dart.notNull(pointIndex) - 2));
            outPts[$_set](1, points[$_get](dart.notNull(pointIndex) - 1));
            outPts[$_set](2, points[$_get]((t$36540$1 = pointIndex, pointIndex = dart.notNull(t$36540$1) + 1, t$36540$1)));
            outPts[$_set](3, points[$_get]((t$36540$2 = pointIndex, pointIndex = dart.notNull(t$36540$2) + 1, t$36540$2)));
            break;
          }
        case 3:
          {
            this[_conicWeightIndex] = dart.notNull(this[_conicWeightIndex]) + 1;
            outPts[$_set](0, points[$_get](dart.notNull(pointIndex) - 2));
            outPts[$_set](1, points[$_get](dart.notNull(pointIndex) - 1));
            outPts[$_set](2, points[$_get]((t$36540$3 = pointIndex, pointIndex = dart.notNull(t$36540$3) + 1, t$36540$3)));
            outPts[$_set](3, points[$_get]((t$36540$4 = pointIndex, pointIndex = dart.notNull(t$36540$4) + 1, t$36540$4)));
            outPts[$_set](4, points[$_get]((t$36540$5 = pointIndex, pointIndex = dart.notNull(t$36540$5) + 1, t$36540$5)));
            outPts[$_set](5, points[$_get]((t$36540$6 = pointIndex, pointIndex = dart.notNull(t$36540$6) + 1, t$36540$6)));
            break;
          }
        case 2:
          {
            outPts[$_set](0, points[$_get](dart.notNull(pointIndex) - 2));
            outPts[$_set](1, points[$_get](dart.notNull(pointIndex) - 1));
            outPts[$_set](2, points[$_get]((t$36540$7 = pointIndex, pointIndex = dart.notNull(t$36540$7) + 1, t$36540$7)));
            outPts[$_set](3, points[$_get]((t$36540$8 = pointIndex, pointIndex = dart.notNull(t$36540$8) + 1, t$36540$8)));
            outPts[$_set](4, points[$_get]((t$36540$9 = pointIndex, pointIndex = dart.notNull(t$36540$9) + 1, t$36540$9)));
            outPts[$_set](5, points[$_get]((t$36540$10 = pointIndex, pointIndex = dart.notNull(t$36540$10) + 1, t$36540$10)));
            break;
          }
        case 4:
          {
            outPts[$_set](0, points[$_get](dart.notNull(pointIndex) - 2));
            outPts[$_set](1, points[$_get](dart.notNull(pointIndex) - 1));
            outPts[$_set](2, points[$_get]((t$36540$11 = pointIndex, pointIndex = dart.notNull(t$36540$11) + 1, t$36540$11)));
            outPts[$_set](3, points[$_get]((t$36540$12 = pointIndex, pointIndex = dart.notNull(t$36540$12) + 1, t$36540$12)));
            outPts[$_set](4, points[$_get]((t$36540$13 = pointIndex, pointIndex = dart.notNull(t$36540$13) + 1, t$36540$13)));
            outPts[$_set](5, points[$_get]((t$36540$14 = pointIndex, pointIndex = dart.notNull(t$36540$14) + 1, t$36540$14)));
            outPts[$_set](6, points[$_get]((t$36540$15 = pointIndex, pointIndex = dart.notNull(t$36540$15) + 1, t$36540$15)));
            outPts[$_set](7, points[$_get]((t$36540$16 = pointIndex, pointIndex = dart.notNull(t$36540$16) + 1, t$36540$16)));
            break;
          }
        case 5:
          {
            break;
          }
        case 6:
          {
            if (!(this[_verbIndex] == this.pathRef.countVerbs())) dart.assertFailed(null, I[295], 1060, 16, "_verbIndex == pathRef.countVerbs()");
            break;
          }
        default:
          {
            dart.throw(new core.FormatException.new("Unsupport Path verb " + dart.str(verb)));
          }
      }
      this[_pointIndex] = pointIndex;
      return verb;
    }
    get conicWeight() {
      return dart.nullCheck(this.pathRef[_conicWeights])[$_get](this[_conicWeightIndex]);
    }
    peek() {
      return dart.notNull(this[_verbIndex]) < dart.notNull(this.pathRef.countVerbs()) ? this.pathRef[_fVerbs][$_get](this[_verbIndex]) : 6;
    }
  };
  (_engine.PathRefIterator.new = function(pathRef) {
    if (pathRef == null) dart.nullFailed(I[295], 944, 24, "pathRef");
    this[_conicWeightIndex] = -1;
    this[_verbIndex] = 0;
    this[_pointIndex] = 0;
    this[iterIndex] = 0;
    this[pathRef$0] = pathRef;
    this[_pointIndex] = 0;
    if (!dart.test(this.pathRef.isFinite)) {
      this[_verbIndex] = this.pathRef.countVerbs();
    }
  }).prototype = _engine.PathRefIterator.prototype;
  dart.addRtiResources(_engine.PathRefIterator, ["_engine|PathRefIterator"]);
  dart.setMethodSignature(_engine.PathRefIterator, () => dart.global.Object.setPrototypeOf({
    skipToNextContour: T$.VoidToint(),
    nextIndex: T$.VoidToint(),
    next: T$11.Float32ListToint(),
    peek: T$.VoidToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PathRefIterator))));
  dart.setGetterSignature(_engine.PathRefIterator, () => dart.global.Object.setPrototypeOf({
    pointIndex: T$.int(),
    conicWeight: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PathRefIterator))));
  dart.setLibraryUri(_engine.PathRefIterator, I[220]);
  dart.setFieldSignature(_engine.PathRefIterator, () => dart.global.Object.setPrototypeOf({
    pathRef: {type: T$11.PathRef(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_conicWeightIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_verbIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pointIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    iterIndex: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PathRefIterator))));
  dart.setStaticFieldSignature(_engine.PathRefIterator, () => ['kMaxBufferSize']);
  dart.defineLazy(_engine.PathRefIterator, {
    /*_engine.PathRefIterator.kMaxBufferSize*/get kMaxBufferSize() {
      return 8;
    }
  }, false);
  _engine._Corner = class _Corner extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine._Corner.new();
    }
  };
  (_engine._Corner.new = function() {
    ;
  }).prototype = _engine._Corner.prototype;
  dart.addRtiResources(_engine._Corner, ["_engine|_Corner"]);
  dart.setLibraryUri(_engine._Corner, I[220]);
  dart.setStaticFieldSignature(_engine._Corner, () => ['kUpperLeft', 'kUpperRight', 'kLowerRight', 'kLowerLeft']);
  dart.defineLazy(_engine._Corner, {
    /*_engine._Corner.kUpperLeft*/get kUpperLeft() {
      return 0;
    },
    /*_engine._Corner.kUpperRight*/get kUpperRight() {
      return 1;
    },
    /*_engine._Corner.kLowerRight*/get kLowerRight() {
      return 2;
    },
    /*_engine._Corner.kLowerLeft*/get kLowerLeft() {
      return 3;
    }
  }, false);
  _engine.SPathSegmentMask = class SPathSegmentMask extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.SPathSegmentMask.new();
    }
  };
  (_engine.SPathSegmentMask.new = function() {
    ;
  }).prototype = _engine.SPathSegmentMask.prototype;
  dart.addRtiResources(_engine.SPathSegmentMask, ["_engine|SPathSegmentMask"]);
  dart.setLibraryUri(_engine.SPathSegmentMask, I[220]);
  dart.setStaticFieldSignature(_engine.SPathSegmentMask, () => ['kLine_SkPathSegmentMask', 'kQuad_SkPathSegmentMask', 'kConic_SkPathSegmentMask', 'kCubic_SkPathSegmentMask']);
  dart.defineLazy(_engine.SPathSegmentMask, {
    /*_engine.SPathSegmentMask.kLine_SkPathSegmentMask*/get kLine_SkPathSegmentMask() {
      return 1;
    },
    /*_engine.SPathSegmentMask.kQuad_SkPathSegmentMask*/get kQuad_SkPathSegmentMask() {
      return 2;
    },
    /*_engine.SPathSegmentMask.kConic_SkPathSegmentMask*/get kConic_SkPathSegmentMask() {
      return 4;
    },
    /*_engine.SPathSegmentMask.kCubic_SkPathSegmentMask*/get kCubic_SkPathSegmentMask() {
      return 8;
    }
  }, false);
  _engine.SPathVerb = class SPathVerb extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.SPathVerb.new();
    }
  };
  (_engine.SPathVerb.new = function() {
    ;
  }).prototype = _engine.SPathVerb.prototype;
  dart.addRtiResources(_engine.SPathVerb, ["_engine|SPathVerb"]);
  dart.setLibraryUri(_engine.SPathVerb, I[220]);
  dart.setStaticFieldSignature(_engine.SPathVerb, () => ['kMove', 'kLine', 'kQuad', 'kConic', 'kCubic', 'kClose']);
  dart.defineLazy(_engine.SPathVerb, {
    /*_engine.SPathVerb.kMove*/get kMove() {
      return 0;
    },
    /*_engine.SPathVerb.kLine*/get kLine() {
      return 1;
    },
    /*_engine.SPathVerb.kQuad*/get kQuad() {
      return 2;
    },
    /*_engine.SPathVerb.kConic*/get kConic() {
      return 3;
    },
    /*_engine.SPathVerb.kCubic*/get kCubic() {
      return 4;
    },
    /*_engine.SPathVerb.kClose*/get kClose() {
      return 5;
    }
  }, false);
  _engine.SPath = class SPath extends core.Object {
    static between(a, b, c) {
      if (a == null) dart.nullFailed(I[296], 49, 30, "a");
      if (b == null) dart.nullFailed(I[296], 49, 40, "b");
      if (c == null) dart.nullFailed(I[296], 49, 50, "c");
      return (dart.notNull(a) - dart.notNull(b)) * (dart.notNull(c) - dart.notNull(b)) <= 0;
    }
    static scalarSignedAsInt(x) {
      if (x == null) dart.nullFailed(I[296], 57, 39, "x");
      return dart.notNull(x) < 0 ? -1 : dart.notNull(x) > 0 ? 1 : 0;
    }
    static nearlyEqual(value1, value2) {
      if (value1 == null) dart.nullFailed(I[296], 61, 34, "value1");
      if (value2 == null) dart.nullFailed(I[296], 61, 49, "value2");
      return (dart.notNull(value1) - dart.notNull(value2))[$abs]() < 0.000244140625;
    }
    static snapToZero(value) {
      if (value == null) dart.nullFailed(I[296], 65, 35, "value");
      return dart.test(_engine.SPath.nearlyEqual(value, 0.0)) ? 0.0 : value;
    }
    static isInteger(value) {
      if (value == null) dart.nullFailed(I[296], 67, 32, "value");
      return value[$floor]() === value;
    }
  };
  (_engine.SPath.new = function() {
    ;
  }).prototype = _engine.SPath.prototype;
  dart.addRtiResources(_engine.SPath, ["_engine|SPath"]);
  dart.setStaticMethodSignature(_engine.SPath, () => ['between', 'scalarSignedAsInt', 'nearlyEqual', 'snapToZero', 'isInteger']);
  dart.setLibraryUri(_engine.SPath, I[220]);
  dart.setStaticFieldSignature(_engine.SPath, () => ['kMoveVerb', 'kLineVerb', 'kQuadVerb', 'kConicVerb', 'kCubicVerb', 'kCloseVerb', 'kDoneVerb', 'kLineSegmentMask', 'kQuadSegmentMask', 'kConicSegmentMask', 'kCubicSegmentMask', 'scalarNearlyZero', 'scalarRoot2Over2']);
  dart.defineLazy(_engine.SPath, {
    /*_engine.SPath.kMoveVerb*/get kMoveVerb() {
      return 0;
    },
    /*_engine.SPath.kLineVerb*/get kLineVerb() {
      return 1;
    },
    /*_engine.SPath.kQuadVerb*/get kQuadVerb() {
      return 2;
    },
    /*_engine.SPath.kConicVerb*/get kConicVerb() {
      return 3;
    },
    /*_engine.SPath.kCubicVerb*/get kCubicVerb() {
      return 4;
    },
    /*_engine.SPath.kCloseVerb*/get kCloseVerb() {
      return 5;
    },
    /*_engine.SPath.kDoneVerb*/get kDoneVerb() {
      return 6;
    },
    /*_engine.SPath.kLineSegmentMask*/get kLineSegmentMask() {
      return 1;
    },
    /*_engine.SPath.kQuadSegmentMask*/get kQuadSegmentMask() {
      return 2;
    },
    /*_engine.SPath.kConicSegmentMask*/get kConicSegmentMask() {
      return 4;
    },
    /*_engine.SPath.kCubicSegmentMask*/get kCubicSegmentMask() {
      return 8;
    },
    /*_engine.SPath.scalarNearlyZero*/get scalarNearlyZero() {
      return 0.000244140625;
    },
    /*_engine.SPath.scalarRoot2Over2*/get scalarRoot2Over2() {
      return 0.707106781;
    }
  }, false);
  _engine.SPathAddPathMode = class SPathAddPathMode extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.SPathAddPathMode.new();
    }
  };
  (_engine.SPathAddPathMode.new = function() {
    ;
  }).prototype = _engine.SPathAddPathMode.prototype;
  dart.addRtiResources(_engine.SPathAddPathMode, ["_engine|SPathAddPathMode"]);
  dart.setLibraryUri(_engine.SPathAddPathMode, I[220]);
  dart.setStaticFieldSignature(_engine.SPathAddPathMode, () => ['kAppend', 'kExtend']);
  dart.defineLazy(_engine.SPathAddPathMode, {
    /*_engine.SPathAddPathMode.kAppend*/get kAppend() {
      return 0;
    },
    /*_engine.SPathAddPathMode.kExtend*/get kExtend() {
      return 1;
    }
  }, false);
  _engine.SPathDirection = class SPathDirection extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.SPathDirection.new();
    }
  };
  (_engine.SPathDirection.new = function() {
    ;
  }).prototype = _engine.SPathDirection.prototype;
  dart.addRtiResources(_engine.SPathDirection, ["_engine|SPathDirection"]);
  dart.setLibraryUri(_engine.SPathDirection, I[220]);
  dart.setStaticFieldSignature(_engine.SPathDirection, () => ['kUnknown', 'kCW', 'kCCW']);
  dart.defineLazy(_engine.SPathDirection, {
    /*_engine.SPathDirection.kUnknown*/get kUnknown() {
      return -1;
    },
    /*_engine.SPathDirection.kCW*/get kCW() {
      return 0;
    },
    /*_engine.SPathDirection.kCCW*/get kCCW() {
      return 1;
    }
  }, false);
  _engine.SPathConvexityType = class SPathConvexityType extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.SPathConvexityType.new();
    }
  };
  (_engine.SPathConvexityType.new = function() {
    ;
  }).prototype = _engine.SPathConvexityType.prototype;
  dart.addRtiResources(_engine.SPathConvexityType, ["_engine|SPathConvexityType"]);
  dart.setLibraryUri(_engine.SPathConvexityType, I[220]);
  dart.setStaticFieldSignature(_engine.SPathConvexityType, () => ['kUnknown', 'kConvex', 'kConcave']);
  dart.defineLazy(_engine.SPathConvexityType, {
    /*_engine.SPathConvexityType.kUnknown*/get kUnknown() {
      return -1;
    },
    /*_engine.SPathConvexityType.kConvex*/get kConvex() {
      return 0;
    },
    /*_engine.SPathConvexityType.kConcave*/get kConcave() {
      return 1;
    }
  }, false);
  _engine.SPathSegmentState = class SPathSegmentState extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.SPathSegmentState.new();
    }
  };
  (_engine.SPathSegmentState.new = function() {
    ;
  }).prototype = _engine.SPathSegmentState.prototype;
  dart.addRtiResources(_engine.SPathSegmentState, ["_engine|SPathSegmentState"]);
  dart.setLibraryUri(_engine.SPathSegmentState, I[220]);
  dart.setStaticFieldSignature(_engine.SPathSegmentState, () => ['kEmptyContour', 'kAfterMove', 'kAfterPrimitive']);
  dart.defineLazy(_engine.SPathSegmentState, {
    /*_engine.SPathSegmentState.kEmptyContour*/get kEmptyContour() {
      return 0;
    },
    /*_engine.SPathSegmentState.kAfterMove*/get kAfterMove() {
      return 1;
    },
    /*_engine.SPathSegmentState.kAfterPrimitive*/get kAfterPrimitive() {
      return 2;
    }
  }, false);
  var root0 = dart.privateName(_engine, "QuadRoots.root0");
  var root1 = dart.privateName(_engine, "QuadRoots.root1");
  _engine.QuadRoots = class QuadRoots extends core.Object {
    get root0() {
      return this[root0];
    }
    set root0(value) {
      this[root0] = value;
    }
    get root1() {
      return this[root1];
    }
    set root1(value) {
      this[root1] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.QuadRoots.new();
    }
    get roots() {
      return this.root0 == null ? G$.JSArrayOfdouble().of([]) : this.root1 == null ? G$.JSArrayOfdouble().of([dart.nullCheck(this.root0)]) : G$.JSArrayOfdouble().of([dart.nullCheck(this.root0), dart.nullCheck(this.root1)]);
    }
    findRoots(a, b, c) {
      if (a == null) dart.nullFailed(I[296], 122, 24, "a");
      if (b == null) dart.nullFailed(I[296], 122, 34, "b");
      if (c == null) dart.nullFailed(I[296], 122, 44, "c");
      let rootCount = 0;
      if (a === 0) {
        this.root0 = _engine.validUnitDivide(-dart.notNull(c), b);
        return this.root0 == null ? 0 : 1;
      }
      let dr = dart.notNull(b) * dart.notNull(b) - 4 * dart.notNull(a) * dart.notNull(c);
      if (dr < 0) {
        return 0;
      }
      dr = math.sqrt(dr);
      if (!dr[$isFinite]) {
        return 0;
      }
      let q = dart.notNull(b) < 0 ? -(dart.notNull(b) - dr) / 2 : -(dart.notNull(b) + dr) / 2;
      let res = _engine.validUnitDivide(q, a);
      if (res != null) {
        this.root0 = res;
        rootCount = rootCount + 1;
      }
      res = _engine.validUnitDivide(c, q);
      if (res != null) {
        if (rootCount === 0) {
          this.root0 = res;
          rootCount = rootCount + 1;
        } else {
          this.root1 = res;
          rootCount = rootCount + 1;
        }
      }
      if (rootCount === 2) {
        if (dart.nullCheck(this.root0) > dart.nullCheck(this.root1)) {
          let swap = dart.nullCheck(this.root0);
          this.root0 = this.root1;
          this.root1 = swap;
        } else if (this.root0 == this.root1) {
          return 1;
        }
      }
      return rootCount;
    }
  };
  (_engine.QuadRoots.new = function() {
    this[root0] = null;
    this[root1] = null;
    ;
  }).prototype = _engine.QuadRoots.prototype;
  dart.addRtiResources(_engine.QuadRoots, ["_engine|QuadRoots"]);
  dart.setMethodSignature(_engine.QuadRoots, () => dart.global.Object.setPrototypeOf({findRoots: T$11.doubleAnddoubleAnddoubleToint()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.QuadRoots))));
  dart.setGetterSignature(_engine.QuadRoots, () => dart.global.Object.setPrototypeOf({roots: T$9.ListOfdouble()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.QuadRoots))));
  dart.setLibraryUri(_engine.QuadRoots, I[220]);
  dart.setFieldSignature(_engine.QuadRoots, () => dart.global.Object.setPrototypeOf({
    root0: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    root1: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.QuadRoots))));
  var firstVectorEndPointX = dart.privateName(_engine, "Convexicator.firstVectorEndPointX");
  var firstVectorEndPointY = dart.privateName(_engine, "Convexicator.firstVectorEndPointY");
  var priorX = dart.privateName(_engine, "Convexicator.priorX");
  var priorY = dart.privateName(_engine, "Convexicator.priorY");
  var lastX = dart.privateName(_engine, "Convexicator.lastX");
  var lastY = dart.privateName(_engine, "Convexicator.lastY");
  var currX = dart.privateName(_engine, "Convexicator.currX");
  var currY = dart.privateName(_engine, "Convexicator.currY");
  var lastVecX = dart.privateName(_engine, "Convexicator.lastVecX");
  var lastVecY = dart.privateName(_engine, "Convexicator.lastVecY");
  var _isFinite = dart.privateName(_engine, "_isFinite");
  var _reversals = dart.privateName(_engine, "_reversals");
  var _expectedDirection = dart.privateName(_engine, "_expectedDirection");
  var _addVector = dart.privateName(_engine, "_addVector");
  var _directionChange = dart.privateName(_engine, "_directionChange");
  _engine.Convexicator = class Convexicator extends core.Object {
    get firstVectorEndPointX() {
      return this[firstVectorEndPointX];
    }
    set firstVectorEndPointX(value) {
      this[firstVectorEndPointX] = value;
    }
    get firstVectorEndPointY() {
      return this[firstVectorEndPointY];
    }
    set firstVectorEndPointY(value) {
      this[firstVectorEndPointY] = value;
    }
    get priorX() {
      return this[priorX];
    }
    set priorX(value) {
      this[priorX] = value;
    }
    get priorY() {
      return this[priorY];
    }
    set priorY(value) {
      this[priorY] = value;
    }
    get lastX() {
      return this[lastX];
    }
    set lastX(value) {
      this[lastX] = value;
    }
    get lastY() {
      return this[lastY];
    }
    set lastY(value) {
      this[lastY] = value;
    }
    get currX() {
      return this[currX];
    }
    set currX(value) {
      this[currX] = value;
    }
    get currY() {
      return this[currY];
    }
    set currY(value) {
      this[currY] = value;
    }
    get lastVecX() {
      return this[lastVecX];
    }
    set lastVecX(value) {
      this[lastVecX] = value;
    }
    get lastVecY() {
      return this[lastVecY];
    }
    set lastVecY(value) {
      this[lastVecY] = value;
    }
    get firstDirection() {
      return this[_firstDirection];
    }
    setMovePt(x, y) {
      if (x == null) dart.nullFailed(I[296], 253, 25, "x");
      if (y == null) dart.nullFailed(I[296], 253, 35, "y");
      this.currX = this.priorX = this.lastX = x;
      this.currY = this.priorY = this.lastY = y;
    }
    addPoint(x, y) {
      if (x == null) dart.nullFailed(I[296], 258, 24, "x");
      if (y == null) dart.nullFailed(I[296], 258, 34, "y");
      if (x == this.currX && y == this.currY) {
        return true;
      }
      this.currX = x;
      this.currY = y;
      let vecX = dart.nullCheck(this.currX) - dart.nullCheck(this.lastX);
      let vecY = dart.nullCheck(this.currY) - dart.nullCheck(this.lastY);
      if (this.priorX == this.lastX && this.priorY == this.lastY) {
        this.lastVecX = vecX;
        this.lastVecY = vecY;
        this.firstVectorEndPointX = x;
        this.firstVectorEndPointY = y;
      } else if (!dart.test(this[_addVector](vecX, vecY))) {
        return false;
      }
      this.priorX = this.lastX;
      this.priorY = this.lastY;
      this.lastX = x;
      this.lastY = y;
      return true;
    }
    close() {
      return this.addPoint(dart.nullCheck(this.firstVectorEndPointX), dart.nullCheck(this.firstVectorEndPointY));
    }
    get isFinite() {
      return this[_isFinite];
    }
    get reversals() {
      return this[_reversals];
    }
    [_directionChange](curVecX, curVecY) {
      if (curVecX == null) dart.nullFailed(I[296], 292, 37, "curVecX");
      if (curVecY == null) dart.nullFailed(I[296], 292, 53, "curVecY");
      let lastX = dart.nullCheck(this.lastVecX);
      let lastY = dart.nullCheck(this.lastVecY);
      let cross = lastX * dart.notNull(curVecY) - lastY * dart.notNull(curVecX);
      if (!cross[$isFinite]) {
        return _engine.DirChange.kUnknown;
      }
      let smallest = math.min(T$.double(), curVecX, math.min(T$.double(), curVecY, math.min(T$.double(), lastX, lastY)));
      let largest = math.max(T$.double(), math.max(T$.double(), curVecX, math.max(T$.double(), curVecY, math.max(T$.double(), lastX, lastY))), -smallest);
      if (dart.test(_engine.SPath.nearlyEqual(largest, largest + cross))) {
        if (dart.test(_engine.SPath.nearlyEqual(_engine.lengthSquared(lastX, lastY), 5.960464477539063e-8)) || dart.test(_engine.SPath.nearlyEqual(_engine.lengthSquared(curVecX, curVecY), 5.960464477539063e-8))) {
          return _engine.DirChange.kUnknown;
        }
        return dart.notNull(_engine.dotProduct(lastX, lastY, curVecX, curVecY)) < 0 ? _engine.DirChange.kBackwards : _engine.DirChange.kStraight;
      }
      return cross > 0 ? _engine.DirChange.kRight : _engine.DirChange.kLeft;
    }
    [_addVector](curVecX, curVecY) {
      if (curVecX == null) dart.nullFailed(I[296], 328, 26, "curVecX");
      if (curVecY == null) dart.nullFailed(I[296], 328, 42, "curVecY");
      let dir = this[_directionChange](curVecX, curVecY);
      let isDirectionRight = dir == _engine.DirChange.kRight;
      if (dir == _engine.DirChange.kLeft || isDirectionRight) {
        if (this[_expectedDirection] == _engine.DirChange.kInvalid) {
          this[_expectedDirection] = dir;
          this[_firstDirection] = isDirectionRight ? 0 : 1;
        } else if (dir != this[_expectedDirection]) {
          this[_firstDirection] = -1;
          return false;
        }
        this.lastVecX = curVecX;
        this.lastVecY = curVecY;
      } else {
        switch (dir) {
          case C[865] || CT.C865:
            {
              this.lastVecX = curVecX;
              this.lastVecY = curVecY;
              return (this[_reversals] = dart.notNull(this[_reversals]) + 1) < 3;
            }
          case C[866] || CT.C866:
            {
              return this[_isFinite] = false;
            }
          default:
            {
              break;
            }
        }
      }
      return true;
    }
    static bySign(pathRef, pointIndex, numPoints) {
      let t$36540, t$36540$;
      if (pathRef == null) dart.nullFailed(I[296], 366, 29, "pathRef");
      if (pointIndex == null) dart.nullFailed(I[296], 366, 42, "pointIndex");
      if (numPoints == null) dart.nullFailed(I[296], 366, 58, "numPoints");
      let lastPointIndex = dart.notNull(pointIndex) + dart.notNull(numPoints);
      let currentPoint = (t$36540 = pointIndex, pointIndex = dart.notNull(t$36540) + 1, t$36540);
      let firstPointIndex = currentPoint;
      let signChangeCountX = 0;
      let signChangeCountY = 0;
      let lastSx = 2;
      let lastSy = 2;
      for (let outerLoop = 0; outerLoop < 2; outerLoop = outerLoop + 1) {
        while (pointIndex !== lastPointIndex) {
          let vecX = dart.notNull(pathRef.pointXAt(pointIndex)) - dart.notNull(pathRef.pointXAt(currentPoint));
          let vecY = dart.notNull(pathRef.pointYAt(pointIndex)) - dart.notNull(pathRef.pointYAt(currentPoint));
          if (!(vecX === 0 && vecY === 0)) {
            if (!(vecX[$isFinite] && vecY[$isFinite])) {
              return -1;
            }
            let sx = vecX < 0 ? 1 : 0;
            let sy = vecY < 0 ? 1 : 0;
            signChangeCountX = signChangeCountX + (sx !== lastSx ? 1 : 0);
            signChangeCountY = signChangeCountY + (sy !== lastSy ? 1 : 0);
            if (signChangeCountX > 3 || signChangeCountY > 3) {
              return 1;
            }
            lastSx = sx;
            lastSy = sy;
          }
          currentPoint = (t$36540$ = pointIndex, pointIndex = dart.notNull(t$36540$) + 1, t$36540$);
          if (outerLoop !== 0) {
            break;
          }
        }
        pointIndex = firstPointIndex;
      }
      return 0;
    }
    static ['_#new#tearOff']() {
      return new _engine.Convexicator.new();
    }
  };
  (_engine.Convexicator.new = function() {
    this[firstVectorEndPointX] = null;
    this[firstVectorEndPointY] = null;
    this[priorX] = null;
    this[priorY] = null;
    this[lastX] = null;
    this[lastY] = null;
    this[currX] = null;
    this[currY] = null;
    this[lastVecX] = null;
    this[lastVecY] = null;
    this[_isFinite] = true;
    this[_firstDirection] = -1;
    this[_reversals] = 0;
    this[_expectedDirection] = _engine.DirChange.kInvalid;
    ;
  }).prototype = _engine.Convexicator.prototype;
  dart.addRtiResources(_engine.Convexicator, ["_engine|Convexicator"]);
  dart.setMethodSignature(_engine.Convexicator, () => dart.global.Object.setPrototypeOf({
    setMovePt: T$9.doubleAnddoubleTovoid(),
    addPoint: T$11.doubleAnddoubleTobool(),
    close: T$.VoidTobool(),
    [_directionChange]: T$11.doubleAnddoubleToDirChange(),
    [_addVector]: T$11.doubleAnddoubleTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Convexicator))));
  dart.setStaticMethodSignature(_engine.Convexicator, () => ['bySign']);
  dart.setGetterSignature(_engine.Convexicator, () => dart.global.Object.setPrototypeOf({
    firstDirection: T$.int(),
    isFinite: T$.bool(),
    reversals: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Convexicator))));
  dart.setLibraryUri(_engine.Convexicator, I[220]);
  dart.setFieldSignature(_engine.Convexicator, () => dart.global.Object.setPrototypeOf({
    firstVectorEndPointX: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    firstVectorEndPointY: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    priorX: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    priorY: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    lastX: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    lastY: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    currX: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    currY: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    lastVecX: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    lastVecY: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isFinite]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_firstDirection]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_reversals]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_expectedDirection]: {type: T$11.DirChange(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Convexicator))));
  dart.setStaticFieldSignature(_engine.Convexicator, () => ['kValueNeverReturnedBySign']);
  dart.defineLazy(_engine.Convexicator, {
    /*_engine.Convexicator.kValueNeverReturnedBySign*/get kValueNeverReturnedBySign() {
      return 2;
    }
  }, false);
  _engine.DirChange = class DirChange extends core._Enum {
    [_enumToString]() {
      return "DirChange." + dart.str(this[_name$]);
    }
  };
  (_engine.DirChange.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[296], 407, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[296], 407, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.DirChange).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.DirChange.prototype;
  dart.addRtiResources(_engine.DirChange, ["_engine|DirChange"]);
  dart.setMethodSignature(_engine.DirChange, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DirChange))));
  dart.setLibraryUri(_engine.DirChange, I[220]);
  dart.setStaticFieldSignature(_engine.DirChange, () => ['values', 'kUnknown', 'kLeft', 'kRight', 'kStraight', 'kBackwards', 'kInvalid']);
  dart.defineLazy(_engine.DirChange, {
    /*_engine.DirChange.values*/get values() {
      return C[867] || CT.C867;
    },
    /*_engine.DirChange.kUnknown*/get kUnknown() {
      return C[866] || CT.C866;
    },
    /*_engine.DirChange.kLeft*/get kLeft() {
      return C[868] || CT.C868;
    },
    /*_engine.DirChange.kRight*/get kRight() {
      return C[869] || CT.C869;
    },
    /*_engine.DirChange.kStraight*/get kStraight() {
      return C[870] || CT.C870;
    },
    /*_engine.DirChange.kBackwards*/get kBackwards() {
      return C[865] || CT.C865;
    },
    /*_engine.DirChange.kInvalid*/get kInvalid() {
      return C[871] || CT.C871;
    }
  }, false);
  var ax = dart.privateName(_engine, "SkQuadCoefficients.ax");
  var ay = dart.privateName(_engine, "SkQuadCoefficients.ay");
  var bx = dart.privateName(_engine, "SkQuadCoefficients.bx");
  var by = dart.privateName(_engine, "SkQuadCoefficients.by");
  var cx = dart.privateName(_engine, "SkQuadCoefficients.cx");
  var cy = dart.privateName(_engine, "SkQuadCoefficients.cy");
  _engine.SkQuadCoefficients = class SkQuadCoefficients extends core.Object {
    get ax() {
      return this[ax];
    }
    set ax(value) {
      super.ax = value;
    }
    get ay() {
      return this[ay];
    }
    set ay(value) {
      super.ay = value;
    }
    get bx() {
      return this[bx];
    }
    set bx(value) {
      super.bx = value;
    }
    get by() {
      return this[by];
    }
    set by(value) {
      super.by = value;
    }
    get cx() {
      return this[cx];
    }
    set cx(value) {
      super.cx = value;
    }
    get cy() {
      return this[cy];
    }
    set cy(value) {
      super.cy = value;
    }
    static ['_#new#tearOff'](x0, y0, x1, y1, x2, y2) {
      if (x0 == null) dart.nullFailed(I[296], 427, 14, "x0");
      if (y0 == null) dart.nullFailed(I[296], 427, 25, "y0");
      if (x1 == null) dart.nullFailed(I[296], 427, 36, "x1");
      if (y1 == null) dart.nullFailed(I[296], 427, 47, "y1");
      if (x2 == null) dart.nullFailed(I[296], 427, 58, "x2");
      if (y2 == null) dart.nullFailed(I[296], 427, 69, "y2");
      return new _engine.SkQuadCoefficients.new(x0, y0, x1, y1, x2, y2);
    }
    evalX(t) {
      if (t == null) dart.nullFailed(I[296], 436, 23, "t");
      return (dart.notNull(this.ax) * dart.notNull(t) + dart.notNull(this.bx)) * dart.notNull(t) + dart.notNull(this.cx);
    }
    evalY(t) {
      if (t == null) dart.nullFailed(I[296], 438, 23, "t");
      return (dart.notNull(this.ay) * dart.notNull(t) + dart.notNull(this.by)) * dart.notNull(t) + dart.notNull(this.cy);
    }
  };
  (_engine.SkQuadCoefficients.new = function(x0, y0, x1, y1, x2, y2) {
    if (x0 == null) dart.nullFailed(I[296], 427, 14, "x0");
    if (y0 == null) dart.nullFailed(I[296], 427, 25, "y0");
    if (x1 == null) dart.nullFailed(I[296], 427, 36, "x1");
    if (y1 == null) dart.nullFailed(I[296], 427, 47, "y1");
    if (x2 == null) dart.nullFailed(I[296], 427, 58, "x2");
    if (y2 == null) dart.nullFailed(I[296], 427, 69, "y2");
    this[cx] = x0;
    this[cy] = y0;
    this[bx] = 2 * (dart.notNull(x1) - dart.notNull(x0));
    this[by] = 2 * (dart.notNull(y1) - dart.notNull(y0));
    this[ax] = dart.notNull(x2) - 2 * dart.notNull(x1) + dart.notNull(x0);
    this[ay] = dart.notNull(y2) - 2 * dart.notNull(y1) + dart.notNull(y0);
    ;
  }).prototype = _engine.SkQuadCoefficients.prototype;
  dart.addRtiResources(_engine.SkQuadCoefficients, ["_engine|SkQuadCoefficients"]);
  dart.setMethodSignature(_engine.SkQuadCoefficients, () => dart.global.Object.setPrototypeOf({
    evalX: T$8.doubleTodouble(),
    evalY: T$8.doubleTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SkQuadCoefficients))));
  dart.setLibraryUri(_engine.SkQuadCoefficients, I[220]);
  dart.setFieldSignature(_engine.SkQuadCoefficients, () => dart.global.Object.setPrototypeOf({
    ax: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    ay: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    bx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    by: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    cx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    cy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SkQuadCoefficients))));
  var pathRef$1 = dart.privateName(_engine, "PathWinding.pathRef");
  var x$5 = dart.privateName(_engine, "PathWinding.x");
  var y$5 = dart.privateName(_engine, "PathWinding.y");
  var _w = dart.privateName(_engine, "_w");
  var _onCurveCount = dart.privateName(_engine, "_onCurveCount");
  var _buffer$1 = dart.privateName(_engine, "_buffer");
  var _walkPath = dart.privateName(_engine, "_walkPath");
  var _computeLineWinding = dart.privateName(_engine, "_computeLineWinding");
  var _computeQuadWinding = dart.privateName(_engine, "_computeQuadWinding");
  var _computeConicWinding = dart.privateName(_engine, "_computeConicWinding");
  var _computeCubicWinding = dart.privateName(_engine, "_computeCubicWinding");
  var _computeMonoQuadWinding = dart.privateName(_engine, "_computeMonoQuadWinding");
  var _computeMonoConicWinding = dart.privateName(_engine, "_computeMonoConicWinding");
  var _windingMonoCubic = dart.privateName(_engine, "_windingMonoCubic");
  _engine.PathWinding = class PathWinding extends core.Object {
    get pathRef() {
      return this[pathRef$1];
    }
    set pathRef(value) {
      super.pathRef = value;
    }
    get x() {
      return this[x$5];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$5];
    }
    set y(value) {
      super.y = value;
    }
    static ['_#new#tearOff'](pathRef, x, y) {
      if (pathRef == null) dart.nullFailed(I[297], 10, 20, "pathRef");
      if (x == null) dart.nullFailed(I[297], 10, 34, "x");
      if (y == null) dart.nullFailed(I[297], 10, 42, "y");
      return new _engine.PathWinding.new(pathRef, x, y);
    }
    get w() {
      return this[_w];
    }
    get onCurveCount() {
      return this[_onCurveCount];
    }
    [_walkPath]() {
      let iter = new _engine.PathIterator.new(this.pathRef, true);
      let verb = null;
      while ((verb = iter.next(this[_buffer$1])) !== 6) {
        switch (verb) {
          case 0:
          case 5:
            {
              break;
            }
          case 1:
            {
              this[_computeLineWinding]();
              break;
            }
          case 2:
            {
              this[_computeQuadWinding]();
              break;
            }
          case 3:
            {
              this[_computeConicWinding](dart.nullCheck(this.pathRef.conicWeights)[$_get](iter.conicWeightIndex));
              break;
            }
          case 4:
            {
              this[_computeCubicWinding]();
            }
        }
      }
    }
    [_computeLineWinding]() {
      let x0 = this[_buffer$1][$_get](0);
      let startY = this[_buffer$1][$_get](1);
      let y0 = startY;
      let x1 = this[_buffer$1][$_get](2);
      let endY = this[_buffer$1][$_get](3);
      let y1 = endY;
      let dy = dart.notNull(y1) - dart.notNull(y0);
      let dir = 1;
      if (dart.notNull(y0) > dart.notNull(y1)) {
        let temp = y0;
        y0 = y1;
        y1 = temp;
        dir = -1;
      }
      if (dart.notNull(this.y) < dart.notNull(y0) || dart.notNull(this.y) > dart.notNull(y1)) {
        return;
      }
      if (dart.test(_engine.PathWinding._checkOnCurve(this.x, this.y, x0, startY, x1, endY))) {
        this[_onCurveCount] = dart.notNull(this[_onCurveCount]) + 1;
        return;
      }
      if (this.y == y1) {
        return;
      }
      let crossProduct = (dart.notNull(x1) - dart.notNull(x0)) * (dart.notNull(this.y) - dart.notNull(startY)) - dy * (dart.notNull(this.x) - dart.notNull(x0));
      if (crossProduct === 0) {
        if (this.x != x1 || this.y != endY) {
          this[_onCurveCount] = dart.notNull(this[_onCurveCount]) + 1;
        }
        dir = 0;
      } else if (_engine.SPath.scalarSignedAsInt(crossProduct) === dir) {
        dir = 0;
      }
      this[_w] = dart.notNull(this[_w]) + dir;
    }
    static _checkOnCurve(x, y, startX, startY, endX, endY) {
      if (x == null) dart.nullFailed(I[297], 95, 36, "x");
      if (y == null) dart.nullFailed(I[297], 95, 46, "y");
      if (startX == null) dart.nullFailed(I[297], 95, 56, "startX");
      if (startY == null) dart.nullFailed(I[297], 95, 71, "startY");
      if (endX == null) dart.nullFailed(I[297], 96, 14, "endX");
      if (endY == null) dart.nullFailed(I[297], 96, 27, "endY");
      if (startY == endY) {
        return dart.test(_engine.SPath.between(startX, x, endX)) && x != endX;
      } else {
        return x == startX && y == startY;
      }
    }
    [_computeQuadWinding]() {
      let n = 0;
      if (!dart.test(_engine.PathWinding._isQuadMonotonic(this[_buffer$1]))) {
        n = _engine.PathWinding._chopQuadAtExtrema(this[_buffer$1]);
      }
      let winding = this[_computeMonoQuadWinding](this[_buffer$1][$_get](0), this[_buffer$1][$_get](1), this[_buffer$1][$_get](2), this[_buffer$1][$_get](3), this[_buffer$1][$_get](4), this[_buffer$1][$_get](5));
      if (dart.notNull(n) > 0) {
        winding = dart.notNull(winding) + dart.notNull(this[_computeMonoQuadWinding](this[_buffer$1][$_get](4), this[_buffer$1][$_get](5), this[_buffer$1][$_get](6), this[_buffer$1][$_get](7), this[_buffer$1][$_get](8), this[_buffer$1][$_get](9)));
      }
      this[_w] = dart.notNull(this[_w]) + dart.notNull(winding);
    }
    [_computeMonoQuadWinding](x0, y0, x1, y1, x2, y2) {
      if (x0 == null) dart.nullFailed(I[297], 122, 14, "x0");
      if (y0 == null) dart.nullFailed(I[297], 122, 25, "y0");
      if (x1 == null) dart.nullFailed(I[297], 122, 36, "x1");
      if (y1 == null) dart.nullFailed(I[297], 122, 47, "y1");
      if (x2 == null) dart.nullFailed(I[297], 122, 58, "x2");
      if (y2 == null) dart.nullFailed(I[297], 122, 69, "y2");
      let dir = 1;
      let startY = y0;
      let endY = y2;
      if (dart.notNull(y0) > dart.notNull(y2)) {
        let temp = y0;
        y0 = y2;
        y2 = temp;
        dir = -1;
      }
      if (dart.notNull(this.y) < dart.notNull(y0) || dart.notNull(this.y) > dart.notNull(y2)) {
        return 0;
      }
      if (dart.test(_engine.PathWinding._checkOnCurve(this.x, this.y, x0, startY, x2, endY))) {
        this[_onCurveCount] = dart.notNull(this[_onCurveCount]) + 1;
        return 0;
      }
      if (this.y == y2) {
        return 0;
      }
      let quadRoots = new _engine.QuadRoots.new();
      let n = quadRoots.findRoots(dart.notNull(startY) - 2 * dart.notNull(y1) + dart.notNull(endY), 2 * (dart.notNull(y1) - dart.notNull(startY)), dart.notNull(startY) - dart.notNull(this.y));
      if (!(dart.notNull(n) <= 1)) dart.assertFailed(null, I[297], 146, 12, "n <= 1");
      let xt = null;
      if (0 === n) {
        xt = dir === 1 ? x0 : x2;
      } else {
        let t = dart.nullCheck(quadRoots.root0);
        let C = x0;
        let A = dart.notNull(x2) - 2 * dart.notNull(x1) + dart.notNull(C);
        let B = 2 * (dart.notNull(x1) - dart.notNull(C));
        xt = _engine.polyEval(A, B, C, t);
      }
      if (dart.test(_engine.SPath.nearlyEqual(xt, this.x))) {
        if (this.x != x2 || this.y != endY) {
          this[_onCurveCount] = dart.notNull(this[_onCurveCount]) + 1;
          return 0;
        }
      }
      return dart.notNull(xt) < dart.notNull(this.x) ? dir : 0;
    }
    static _chopQuadAtExtrema(buffer) {
      if (buffer == null) dart.nullFailed(I[297], 170, 45, "buffer");
      let x0 = buffer[$_get](0);
      let y0 = buffer[$_get](1);
      let x1 = buffer[$_get](2);
      let y1 = buffer[$_get](3);
      let x2 = buffer[$_get](4);
      let y2 = buffer[$_get](5);
      let tValueAtExtrema = _engine.validUnitDivide(dart.notNull(y0) - dart.notNull(y1), dart.notNull(y0) - dart.notNull(y1) - dart.notNull(y1) + dart.notNull(y2));
      if (tValueAtExtrema != null) {
        let p01x = dart.notNull(x0) + dart.notNull(tValueAtExtrema) * (dart.notNull(x1) - dart.notNull(x0));
        let p01y = dart.notNull(y0) + dart.notNull(tValueAtExtrema) * (dart.notNull(y1) - dart.notNull(y0));
        let p12x = dart.notNull(x1) + dart.notNull(tValueAtExtrema) * (dart.notNull(x2) - dart.notNull(x1));
        let p12y = dart.notNull(y1) + dart.notNull(tValueAtExtrema) * (dart.notNull(y2) - dart.notNull(y1));
        let cx = p01x + dart.notNull(tValueAtExtrema) * (p12x - p01x);
        let cy = p01y + dart.notNull(tValueAtExtrema) * (p12y - p01y);
        buffer[$_set](2, p01x);
        buffer[$_set](3, p01y);
        buffer[$_set](4, cx);
        buffer[$_set](5, cy);
        buffer[$_set](6, p12x);
        buffer[$_set](7, p12y);
        buffer[$_set](8, x2);
        buffer[$_set](9, y2);
        return 1;
      }
      buffer[$_set](3, (dart.notNull(y0) - dart.notNull(y1))[$abs]() < (dart.notNull(y1) - dart.notNull(y2))[$abs]() ? y0 : y2);
      return 0;
    }
    static _isQuadMonotonic(quad) {
      if (quad == null) dart.nullFailed(I[297], 202, 44, "quad");
      let y0 = quad[$_get](1);
      let y1 = quad[$_get](3);
      let y2 = quad[$_get](5);
      if (y0 == y1) {
        return true;
      }
      if (dart.notNull(y0) < dart.notNull(y1)) {
        return dart.notNull(y1) <= dart.notNull(y2);
      } else {
        return dart.notNull(y1) >= dart.notNull(y2);
      }
    }
    [_computeConicWinding](weight) {
      if (weight == null) dart.nullFailed(I[297], 216, 36, "weight");
      let conic = new _engine.Conic.new(this[_buffer$1][$_get](0), this[_buffer$1][$_get](1), this[_buffer$1][$_get](2), this[_buffer$1][$_get](3), this[_buffer$1][$_get](4), this[_buffer$1][$_get](5), weight);
      let isMono = _engine.PathWinding._isQuadMonotonic(this[_buffer$1]);
      let conics = G$.JSArrayOfConic().of([]);
      conic.chopAtYExtrema(conics);
      this[_computeMonoConicWinding](conics[$_get](0));
      if (!dart.test(isMono) && conics[$length] === 2) {
        this[_computeMonoConicWinding](conics[$_get](1));
      }
    }
    [_computeMonoConicWinding](conic) {
      if (conic == null) dart.nullFailed(I[297], 230, 39, "conic");
      let y0 = conic.p0y;
      let y2 = conic.p2y;
      let dir = 1;
      if (dart.notNull(y0) > dart.notNull(y2)) {
        let swap = y0;
        y0 = y2;
        y2 = swap;
        dir = -1;
      }
      if (dart.notNull(this.y) < dart.notNull(y0) || dart.notNull(this.y) > dart.notNull(y2)) {
        return;
      }
      if (dart.test(_engine.PathWinding._checkOnCurve(this.x, this.y, conic.p0x, conic.p0y, conic.p2x, conic.p2y))) {
        this[_onCurveCount] = dart.notNull(this[_onCurveCount]) + 1;
        return;
      }
      if (this.y == y2) {
        return;
      }
      let A = conic.p2y;
      let B = dart.notNull(conic.p1y) * dart.notNull(conic.fW) - dart.notNull(this.y) * dart.notNull(conic.fW) + dart.notNull(this.y);
      let C = conic.p0y;
      A = dart.notNull(A) + (dart.notNull(C) - 2 * B);
      B = B - dart.notNull(C);
      C = dart.notNull(C) - dart.notNull(this.y);
      let quadRoots = new _engine.QuadRoots.new();
      let n = quadRoots.findRoots(A, 2 * B, C);
      if (!(dart.notNull(n) <= 1)) dart.assertFailed(null, I[297], 261, 12, "n <= 1");
      let xt = null;
      if (0 === n) {
        xt = dir === 1 ? conic.p0x : conic.p2x;
      } else {
        let root = dart.nullCheck(quadRoots.root0);
        xt = dart.notNull(_engine.Conic.evalNumerator(conic.p0x, conic.p1x, conic.p2x, conic.fW, root)) / dart.notNull(_engine.Conic.evalDenominator(conic.fW, root));
      }
      if (dart.test(_engine.SPath.nearlyEqual(xt, this.x))) {
        if (this.x != conic.p2x || this.y != conic.p2y) {
          this[_onCurveCount] = dart.notNull(this[_onCurveCount]) + 1;
          return;
        }
      }
      this[_w] = dart.notNull(this[_w]) + (dart.notNull(xt) < dart.notNull(this.x) ? dir : 0);
    }
    [_computeCubicWinding]() {
      let n = _engine.chopCubicAtYExtrema(this[_buffer$1], this[_buffer$1]);
      for (let i = 0; i <= dart.notNull(n); i = i + 1) {
        this[_windingMonoCubic](i * 3 * 2);
      }
    }
    [_windingMonoCubic](bufferIndex) {
      let t$36542, t$36542$, t$36542$0, t$36542$1, t$36542$2, t$36542$3;
      if (bufferIndex == null) dart.nullFailed(I[297], 291, 30, "bufferIndex");
      let bufferStartPos = bufferIndex;
      let px0 = this[_buffer$1][$_get]((t$36542 = bufferIndex, bufferIndex = dart.notNull(t$36542) + 1, t$36542));
      let py0 = this[_buffer$1][$_get]((t$36542$ = bufferIndex, bufferIndex = dart.notNull(t$36542$) + 1, t$36542$));
      let px1 = this[_buffer$1][$_get]((t$36542$0 = bufferIndex, bufferIndex = dart.notNull(t$36542$0) + 1, t$36542$0));
      bufferIndex = dart.notNull(bufferIndex) + 1;
      let px2 = this[_buffer$1][$_get]((t$36542$1 = bufferIndex, bufferIndex = dart.notNull(t$36542$1) + 1, t$36542$1));
      bufferIndex = dart.notNull(bufferIndex) + 1;
      let px3 = this[_buffer$1][$_get]((t$36542$2 = bufferIndex, bufferIndex = dart.notNull(t$36542$2) + 1, t$36542$2));
      let py3 = this[_buffer$1][$_get]((t$36542$3 = bufferIndex, bufferIndex = dart.notNull(t$36542$3) + 1, t$36542$3));
      let y0 = py0;
      let y3 = py3;
      let dir = 1;
      if (dart.notNull(y0) > dart.notNull(y3)) {
        let swap = y0;
        y0 = y3;
        y3 = swap;
        dir = -1;
      }
      if (dart.notNull(this.y) < dart.notNull(y0) || dart.notNull(this.y) > dart.notNull(y3)) {
        return;
      }
      if (dart.test(_engine.PathWinding._checkOnCurve(this.x, this.y, px0, py0, px3, py3))) {
        this[_onCurveCount] = dart.notNull(this[_onCurveCount]) + 1;
        return;
      }
      if (this.y == y3) {
        return;
      }
      let min = math.min(T$.double(), px0, math.min(T$.double(), px1, math.min(T$.double(), px2, px3)));
      let max = math.max(T$.double(), px0, math.max(T$.double(), px1, math.max(T$.double(), px2, px3)));
      if (dart.notNull(this.x) < min) {
        return;
      }
      if (dart.notNull(this.x) > max) {
        this[_w] = dart.notNull(this[_w]) + dir;
        return;
      }
      let t = _engine.chopMonoAtY(this[_buffer$1], bufferStartPos, this.y);
      if (t == null) {
        return;
      }
      let xt = _engine.evalCubicPts(px0, px1, px2, px3, t);
      if (dart.test(_engine.SPath.nearlyEqual(xt, this.x))) {
        if (this.x != px3 || this.y != py3) {
          this[_onCurveCount] = dart.notNull(this[_onCurveCount]) + 1;
          return;
        }
      }
      this[_w] = dart.notNull(this[_w]) + (dart.notNull(xt) < dart.notNull(this.x) ? dir : 0);
    }
  };
  (_engine.PathWinding.new = function(pathRef, x, y) {
    if (pathRef == null) dart.nullFailed(I[297], 10, 20, "pathRef");
    if (x == null) dart.nullFailed(I[297], 10, 34, "x");
    if (y == null) dart.nullFailed(I[297], 10, 42, "y");
    this[_w] = 0;
    this[_onCurveCount] = 0;
    this[_buffer$1] = _native_typed_data.NativeFloat32List.new(8 + 10);
    this[pathRef$1] = pathRef;
    this[x$5] = x;
    this[y$5] = y;
    this[_walkPath]();
  }).prototype = _engine.PathWinding.prototype;
  dart.addRtiResources(_engine.PathWinding, ["_engine|PathWinding"]);
  dart.setMethodSignature(_engine.PathWinding, () => dart.global.Object.setPrototypeOf({
    [_walkPath]: T$.VoidTovoid(),
    [_computeLineWinding]: T$.VoidTovoid(),
    [_computeQuadWinding]: T$.VoidTovoid(),
    [_computeMonoQuadWinding]: T$11.doubleAnddoubleAnddouble__Toint(),
    [_computeConicWinding]: T$9.doubleTovoid(),
    [_computeMonoConicWinding]: T$11.ConicTovoid(),
    [_computeCubicWinding]: T$.VoidTovoid(),
    [_windingMonoCubic]: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PathWinding))));
  dart.setStaticMethodSignature(_engine.PathWinding, () => ['_checkOnCurve', '_chopQuadAtExtrema', '_isQuadMonotonic']);
  dart.setGetterSignature(_engine.PathWinding, () => dart.global.Object.setPrototypeOf({
    w: T$.int(),
    onCurveCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PathWinding))));
  dart.setLibraryUri(_engine.PathWinding, I[220]);
  dart.setFieldSignature(_engine.PathWinding, () => dart.global.Object.setPrototypeOf({
    pathRef: {type: T$11.PathRef(), isConst: false, isFinal: true, libraryUri: I[220]},
    x: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_w]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_onCurveCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_buffer$1]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PathWinding))));
  var __EnginePictureRecorder_cullRect = dart.privateName(_engine, "_#EnginePictureRecorder#cullRect");
  var __EnginePictureRecorder_cullRect_isSet = dart.privateName(_engine, "_#EnginePictureRecorder#cullRect#isSet");
  var _isRecording = dart.privateName(_engine, "_isRecording");
  _engine.EnginePictureRecorder = class EnginePictureRecorder extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.EnginePictureRecorder.new();
    }
    get cullRect() {
      let t$36542;
      return dart.test(this[__EnginePictureRecorder_cullRect_isSet]) ? (t$36542 = this[__EnginePictureRecorder_cullRect], t$36542) : dart.throw(new _internal.LateError.fieldNI("cullRect"));
    }
    set cullRect(cullRect$35param) {
      if (cullRect$35param == null) dart.nullFailed(I[298], 13, 16, "cullRect#param");
      this[__EnginePictureRecorder_cullRect_isSet] = true;
      this[__EnginePictureRecorder_cullRect] = cullRect$35param;
    }
    beginRecording(bounds) {
      if (bounds == null) dart.nullFailed(I[298], 16, 42, "bounds");
      if (!!dart.test(this[_isRecording])) dart.assertFailed(null, I[298], 17, 12, "!_isRecording");
      this.cullRect = bounds;
      this[_isRecording] = true;
      return this[_canvas$] = new _engine.RecordingCanvas.new(this.cullRect);
    }
    get isRecording() {
      return this[_isRecording];
    }
    endRecording() {
      let t$36542;
      if (!dart.test(this[_isRecording])) {
        this.beginRecording(ui.Rect.largest);
      }
      this[_isRecording] = false;
      dart.nullCheck(this[_canvas$]).endRecording();
      let result = new _engine.EnginePicture.new(this[_canvas$], this.cullRect);
      t$36542 = ui.Picture.onCreate;
      t$36542 == null ? null : t$36542(result);
      return result;
    }
  };
  (_engine.EnginePictureRecorder.new = function() {
    this[_canvas$] = null;
    this[__EnginePictureRecorder_cullRect] = null;
    this[__EnginePictureRecorder_cullRect_isSet] = false;
    this[_isRecording] = false;
    ;
  }).prototype = _engine.EnginePictureRecorder.prototype;
  dart.addRtiResources(_engine.EnginePictureRecorder, ["_engine|EnginePictureRecorder", "ui|PictureRecorder"]);
  dart.setMethodSignature(_engine.EnginePictureRecorder, () => dart.global.Object.setPrototypeOf({
    beginRecording: T$11.RectToRecordingCanvas(),
    endRecording: T$11.VoidToEnginePicture()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EnginePictureRecorder))));
  dart.setGetterSignature(_engine.EnginePictureRecorder, () => dart.global.Object.setPrototypeOf({
    cullRect: T$8.Rect(),
    isRecording: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EnginePictureRecorder))));
  dart.setSetterSignature(_engine.EnginePictureRecorder, () => dart.global.Object.setPrototypeOf({cullRect: T$8.Rect()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.EnginePictureRecorder))));
  dart.setLibraryUri(_engine.EnginePictureRecorder, I[220]);
  dart.setFieldSignature(_engine.EnginePictureRecorder, () => dart.global.Object.setPrototypeOf({
    [_canvas$]: {type: T$11.RecordingCanvasN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EnginePictureRecorder_cullRect]: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [__EnginePictureRecorder_cullRect_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isRecording]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EnginePictureRecorder))));
  var recordingCanvas$ = dart.privateName(_engine, "EnginePicture.recordingCanvas");
  var cullRect$ = dart.privateName(_engine, "EnginePicture.cullRect");
  _engine.EnginePicture = class EnginePicture extends core.Object {
    get recordingCanvas() {
      return this[recordingCanvas$];
    }
    set recordingCanvas(value) {
      super.recordingCanvas = value;
    }
    get cullRect() {
      return this[cullRect$];
    }
    set cullRect(value) {
      super.cullRect = value;
    }
    static ['_#new#tearOff'](recordingCanvas, cullRect) {
      return new _engine.EnginePicture.new(recordingCanvas, cullRect);
    }
    toImage(width, height) {
      if (width == null) dart.nullFailed(I[298], 52, 32, "width");
      if (height == null) dart.nullFailed(I[298], 52, 43, "height");
      return async.async(T$10.Image(), (function* toImage() {
        let t$36542;
        let imageRect = new ui.Rect.fromLTRB(0.0, 0.0, width[$toDouble](), height[$toDouble]());
        let canvas = _engine.BitmapCanvas.imageData(imageRect);
        dart.nullCheck(this.recordingCanvas).apply(canvas, imageRect);
        let imageDataUrl = canvas.toDataUrl();
        let imageElement = (t$36542 = _engine.createDomHTMLImageElement(), (() => {
          _engine['DomHTMLImageElementExtension|set#src'](t$36542, imageDataUrl);
          _engine['DomHTMLImageElementExtension|set#width'](t$36542, width[$toDouble]());
          _engine['DomHTMLImageElementExtension|set#height'](t$36542, height[$toDouble]());
          return t$36542;
        })());
        let onImageLoaded = G$.CompleterOfImage().sync();
        let errorListener = null;
        let t$36$35errorListener$35isSet = false;
        function t$36$35errorListener$35get() {
          return t$36$35errorListener$35isSet ? errorListener : dart.throw(new _internal.LateError.localNI("errorListener"));
        }
        function t$36$35errorListener$35set(errorListener$35param) {
          if (errorListener$35param == null) dart.nullFailed(I[298], 69, 33, "errorListener#param");
          if (t$36$35errorListener$35isSet)
            dart.throw(new _internal.LateError.localAI("errorListener"));
          else {
            t$36$35errorListener$35isSet = true;
            return errorListener = errorListener$35param;
          }
        }
        t$36$35errorListener$35set(_engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[298], 70, 54, "event");
          onImageLoaded.completeError(event);
          _engine['DomEventTargetExtension|removeEventListener'](imageElement, "error", t$36$35errorListener$35get());
        }, T$10.DomEventTovoid())));
        _engine['DomEventTargetExtension|addEventListener'](imageElement, "error", t$36$35errorListener$35get());
        let loadListener = null;
        let t$36$35loadListener$35isSet = false;
        function t$36$35loadListener$35get() {
          return t$36$35loadListener$35isSet ? loadListener : dart.throw(new _internal.LateError.localNI("loadListener"));
        }
        function t$36$35loadListener$35set(loadListener$35param) {
          if (loadListener$35param == null) dart.nullFailed(I[298], 75, 33, "loadListener#param");
          if (t$36$35loadListener$35isSet)
            dart.throw(new _internal.LateError.localAI("loadListener"));
          else {
            t$36$35loadListener$35isSet = true;
            return loadListener = loadListener$35param;
          }
        }
        t$36$35loadListener$35set(_engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[298], 76, 53, "event");
          onImageLoaded.complete(new _engine.HtmlImage.new(imageElement, width, height));
          _engine['DomEventTargetExtension|removeEventListener'](imageElement, "load", t$36$35loadListener$35get());
        }, T$10.DomEventTovoid())));
        _engine['DomEventTargetExtension|addEventListener'](imageElement, "load", t$36$35loadListener$35get());
        return onImageLoaded.future;
      }).bind(this));
    }
    toImageSync(width, height) {
      if (width == null) dart.nullFailed(I[298], 89, 28, "width");
      if (height == null) dart.nullFailed(I[298], 89, 39, "height");
      dart.throw(new core.UnsupportedError.new("toImageSync is not supported on the HTML backend. Use drawPicture instead, or toImage."));
    }
    dispose() {
      let t$36548;
      t$36548 = ui.Picture.onDispose;
      t$36548 == null ? null : t$36548(this);
      this[_disposed] = true;
    }
    get debugDisposed() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_disposed];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[298], 105, 12, "() {\n      result = _disposed;\n      return true;\n    }()");
      if (result != null) {
        return dart.nullCheck(result);
      }
      dart.throw(new core.StateError.new("Picture.debugDisposed is only available when asserts are enabled."));
    }
    get approximateBytesUsed() {
      return 0;
    }
  };
  (_engine.EnginePicture.new = function(recordingCanvas, cullRect) {
    this[_disposed] = false;
    this[recordingCanvas$] = recordingCanvas;
    this[cullRect$] = cullRect;
    ;
  }).prototype = _engine.EnginePicture.prototype;
  dart.addRtiResources(_engine.EnginePicture, ["_engine|EnginePicture", "ui|Picture"]);
  dart.setMethodSignature(_engine.EnginePicture, () => dart.global.Object.setPrototypeOf({
    toImage: T$10.intAndintToFutureOfImage(),
    toImageSync: T$10.intAndintToImage(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EnginePicture))));
  dart.setGetterSignature(_engine.EnginePicture, () => dart.global.Object.setPrototypeOf({
    debugDisposed: T$.bool(),
    approximateBytesUsed: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EnginePicture))));
  dart.setLibraryUri(_engine.EnginePicture, I[220]);
  dart.setFieldSignature(_engine.EnginePicture, () => dart.global.Object.setPrototypeOf({
    [_disposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    recordingCanvas: {type: T$11.RecordingCanvasN(), isConst: false, isFinal: true, libraryUri: I[220]},
    cullRect: {type: T$9.RectN$1(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EnginePicture))));
  var canvasSize$ = dart.privateName(_engine, "PaintRequest.canvasSize");
  var paintCallback$ = dart.privateName(_engine, "PaintRequest.paintCallback");
  _engine.PaintRequest = class PaintRequest extends core.Object {
    get canvasSize() {
      return this[canvasSize$];
    }
    set canvasSize(value) {
      super.canvasSize = value;
    }
    get paintCallback() {
      return this[paintCallback$];
    }
    set paintCallback(value) {
      super.paintCallback = value;
    }
    static ['_#new#tearOff'](opts) {
      let canvasSize = opts && 'canvasSize' in opts ? opts.canvasSize : null;
      if (canvasSize == null) dart.nullFailed(I[298], 157, 19, "canvasSize");
      let paintCallback = opts && 'paintCallback' in opts ? opts.paintCallback : null;
      if (paintCallback == null) dart.nullFailed(I[298], 158, 19, "paintCallback");
      return new _engine.PaintRequest.new({canvasSize: canvasSize, paintCallback: paintCallback});
    }
  };
  (_engine.PaintRequest.new = function(opts) {
    let canvasSize = opts && 'canvasSize' in opts ? opts.canvasSize : null;
    if (canvasSize == null) dart.nullFailed(I[298], 157, 19, "canvasSize");
    let paintCallback = opts && 'paintCallback' in opts ? opts.paintCallback : null;
    if (paintCallback == null) dart.nullFailed(I[298], 158, 19, "paintCallback");
    this[canvasSize$] = canvasSize;
    this[paintCallback$] = paintCallback;
    ;
  }).prototype = _engine.PaintRequest.prototype;
  dart.addRtiResources(_engine.PaintRequest, ["_engine|PaintRequest"]);
  dart.setLibraryUri(_engine.PaintRequest, I[220]);
  dart.setFieldSignature(_engine.PaintRequest, () => dart.global.Object.setPrototypeOf({
    canvasSize: {type: T$8.Size(), isConst: false, isFinal: true, libraryUri: I[198]},
    paintCallback: {type: T$.VoidTovoid(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintRequest))));
  var dx$0 = dart.privateName(_engine, "PersistedPicture.dx");
  var dy$0 = dart.privateName(_engine, "PersistedPicture.dy");
  var picture$0 = dart.privateName(_engine, "PersistedPicture.picture");
  var localPaintBounds = dart.privateName(_engine, "PersistedPicture.localPaintBounds");
  var hints$ = dart.privateName(_engine, "PersistedPicture.hints");
  var _requiresRepaint = dart.privateName(_engine, "_requiresRepaint");
  var _optimalLocalCullRect = dart.privateName(_engine, "_optimalLocalCullRect");
  var _exactGlobalCullRect = dart.privateName(_engine, "_exactGlobalCullRect");
  var _exactLocalCullRect = dart.privateName(_engine, "_exactLocalCullRect");
  var _computeExactCullRects = dart.privateName(_engine, "_computeExactCullRects");
  var _computeOptimalCullRect = dart.privateName(_engine, "_computeOptimalCullRect");
  var _applyPaint = dart.privateName(_engine, "_applyPaint");
  var _applyBitmapPaint = dart.privateName(_engine, "_applyBitmapPaint");
  var _applyDomPaint = dart.privateName(_engine, "_applyDomPaint");
  var _findOrCreateCanvas = dart.privateName(_engine, "_findOrCreateCanvas");
  var _applyTranslate = dart.privateName(_engine, "_applyTranslate");
  _engine.PersistedLeafSurface = class PersistedLeafSurface extends _engine.PersistedSurface {
    visitChildren(visitor) {
      if (visitor == null) dart.nullFailed(I[277], 611, 46, "visitor");
    }
  };
  (_engine.PersistedLeafSurface.new = function() {
    dart.global.Object.getPrototypeOf(_engine.PersistedLeafSurface).new.call(this, null);
    ;
  }).prototype = _engine.PersistedLeafSurface.prototype;
  dart.addRtiResources(_engine.PersistedLeafSurface, ["_engine|PersistedLeafSurface"]);
  dart.setMethodSignature(_engine.PersistedLeafSurface, () => dart.global.Object.setPrototypeOf({visitChildren: T$10.FnTovoid$41()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedLeafSurface))));
  dart.setLibraryUri(_engine.PersistedLeafSurface, I[220]);
  _engine.PersistedPicture = class PersistedPicture extends _engine.PersistedLeafSurface {
    get dx() {
      return this[dx$0];
    }
    set dx(value) {
      super.dx = value;
    }
    get dy() {
      return this[dy$0];
    }
    set dy(value) {
      super.dy = value;
    }
    get picture() {
      return this[picture$0];
    }
    set picture(value) {
      super.picture = value;
    }
    get localPaintBounds() {
      return this[localPaintBounds];
    }
    set localPaintBounds(value) {
      super.localPaintBounds = value;
    }
    get hints() {
      return this[hints$];
    }
    set hints(value) {
      super.hints = value;
    }
    static ['_#new#tearOff'](dx, dy, picture, hints) {
      if (dx == null) dart.nullFailed(I[298], 200, 25, "dx");
      if (dy == null) dart.nullFailed(I[298], 200, 34, "dy");
      if (picture == null) dart.nullFailed(I[298], 200, 43, "picture");
      if (hints == null) dart.nullFailed(I[298], 200, 57, "hints");
      return new _engine.PersistedPicture.new(dx, dy, picture, hints);
    }
    get canvas() {
      return this[_canvas$];
    }
    createElement() {
      let element = this.defaultCreateElement("flt-picture");
      _engine['DomElementExtension|setAttribute'](element, "aria-hidden", "true");
      return element;
    }
    preroll(prerollContext) {
      let t$36548;
      if (prerollContext == null) dart.nullFailed(I[298], 243, 38, "prerollContext");
      if (prerollContext.activeShaderMaskCount !== 0 || prerollContext.activeColorFilterCount !== 0) {
        t$36548 = this.picture.recordingCanvas;
        t$36548 == null ? null : t$36548.renderStrategy.isInsideSvgFilterTree = true;
      }
      super.preroll(prerollContext);
    }
    recomputeTransformAndClip() {
      this.transform = dart.nullCheck(this.parent).transform;
      if (this.dx !== 0.0 || this.dy !== 0.0) {
        this.transform = dart.nullCheck(this.transform).clone();
        dart.nullCheck(this.transform).translate(this.dx, this.dy);
      }
      let paintWidth = dart.nullCheck(this.localPaintBounds).width;
      let paintHeight = dart.nullCheck(this.localPaintBounds).height;
      let newDensity = this.localPaintBounds == null || paintWidth === 0 || paintHeight === 0 ? 1.0 : _engine._computePixelDensity(this.transform, paintWidth, paintHeight);
      if (newDensity != this[_density$]) {
        this[_density$] = newDensity;
        this[_requiresRepaint] = true;
      }
      this[_computeExactCullRects]();
    }
    get optimalLocalCullRect() {
      return this[_optimalLocalCullRect];
    }
    get debugExactGlobalCullRect() {
      return this[_exactGlobalCullRect];
    }
    [_computeExactCullRects]() {
      if (!(this.transform != null)) dart.assertFailed(null, I[298], 296, 12, "transform != null");
      if (!(this.localPaintBounds != null)) dart.assertFailed(null, I[298], 297, 12, "localPaintBounds != null");
      if (dart.nullCheck(this.parent).projectedClip == null) {
        let bounds = null;
        let parentSurface = this.parent;
        let clipTransform = new _engine.Matrix4.identity();
        while (parentSurface != null) {
          let localClipBounds = parentSurface.localClipBounds;
          if (localClipBounds != null) {
            if (bounds == null) {
              bounds = clipTransform.transformRect(localClipBounds);
            } else {
              bounds = bounds.intersect(clipTransform.transformRect(localClipBounds));
            }
          }
          let localInverse = parentSurface.localTransformInverse;
          if (localInverse != null && !dart.test(localInverse.isIdentity())) {
            clipTransform.multiply(localInverse);
          }
          parentSurface = parentSurface.parent;
        }
        if (bounds != null && (dart.notNull(bounds.width) <= 0 || dart.notNull(bounds.height) <= 0)) {
          bounds = ui.Rect.zero;
        }
        dart.nullCheck(this.parent).projectedClip = bounds;
      }
      if (dart.nullCheck(this.parent).projectedClip == null) {
        this[_exactLocalCullRect] = this.localPaintBounds;
      } else {
        this[_exactLocalCullRect] = dart.nullCheck(this.localPaintBounds).intersect(dart.nullCheck(dart.nullCheck(this.parent).projectedClip));
      }
      if (dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).width) <= 0 || dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).height) <= 0) {
        this[_exactLocalCullRect] = ui.Rect.zero;
        this[_exactGlobalCullRect] = ui.Rect.zero;
      } else {
        if (!dart.test(dart.fn(() => {
          this[_exactGlobalCullRect] = dart.nullCheck(this.transform).transformRect(dart.nullCheck(this[_exactLocalCullRect]));
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[298], 339, 14, "() {\n        _exactGlobalCullRect = transform!.transformRect(_exactLocalCullRect!);\n        return true;\n      }()");
      }
    }
    [_computeOptimalCullRect](oldSurface) {
      if (!(this[_exactLocalCullRect] != null)) dart.assertFailed(null, I[298], 347, 12, "_exactLocalCullRect != null");
      if (oldSurface == null || !dart.test(dart.nullCheck(oldSurface.picture.recordingCanvas).didDraw)) {
        this[_optimalLocalCullRect] = this[_exactLocalCullRect];
        this[_requiresRepaint] = true;
        return;
      }
      if (!(oldSurface[_optimalLocalCullRect] != null)) dart.assertFailed(null, I[298], 356, 12, "oldSurface._optimalLocalCullRect != null");
      let surfaceBeingRetained = oldSurface === this;
      let oldOptimalLocalCullRect = surfaceBeingRetained ? this[_optimalLocalCullRect] : oldSurface[_optimalLocalCullRect];
      if (dart.equals(this[_exactLocalCullRect], ui.Rect.zero)) {
        this[_optimalLocalCullRect] = ui.Rect.zero;
        if (!dart.equals(oldOptimalLocalCullRect, ui.Rect.zero)) {
          this[_requiresRepaint] = true;
        }
        return;
      }
      if (dart.test(_engine.rectContainsOther(dart.nullCheck(oldOptimalLocalCullRect), dart.nullCheck(this[_exactLocalCullRect])))) {
        this[_optimalLocalCullRect] = oldOptimalLocalCullRect;
        return;
      }
      let leftwardDelta = dart.notNull(oldOptimalLocalCullRect.left) - dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).left);
      let upwardDelta = dart.notNull(oldOptimalLocalCullRect.top) - dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).top);
      let rightwardDelta = dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).right) - dart.notNull(oldOptimalLocalCullRect.right);
      let bottomwardDelta = dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).bottom) - dart.notNull(oldOptimalLocalCullRect.bottom);
      let newLocalCullRect = new ui.Rect.fromLTRB(dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).left) - dart.notNull(_engine.PersistedPicture._predictTrend(leftwardDelta, dart.nullCheck(this[_exactLocalCullRect]).width)), dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).top) - dart.notNull(_engine.PersistedPicture._predictTrend(upwardDelta, dart.nullCheck(this[_exactLocalCullRect]).height)), dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).right) + dart.notNull(_engine.PersistedPicture._predictTrend(rightwardDelta, dart.nullCheck(this[_exactLocalCullRect]).width)), dart.notNull(dart.nullCheck(this[_exactLocalCullRect]).bottom) + dart.notNull(_engine.PersistedPicture._predictTrend(bottomwardDelta, dart.nullCheck(this[_exactLocalCullRect]).height))).intersect(dart.nullCheck(this.localPaintBounds));
      this[_requiresRepaint] = !dart.equals(this[_optimalLocalCullRect], newLocalCullRect);
      this[_optimalLocalCullRect] = newLocalCullRect;
    }
    static _predictTrend(delta, extent) {
      if (delta == null) dart.nullFailed(I[298], 423, 38, "delta");
      if (extent == null) dart.nullFailed(I[298], 423, 52, "extent");
      if (dart.notNull(delta) <= 0.0) {
        return dart.notNull(extent) * 0.1;
      } else {
        return math.min(T$.double(), math.max(T$.double(), dart.notNull(extent) * 0.5, dart.notNull(delta) * 10.0), extent);
      }
    }
    get bitmapPixelCount() {
      if (!T$11.BitmapCanvas()[_is](this[_canvas$])) {
        return 0;
      }
      let bitmapCanvas = T$11.BitmapCanvas()[_as](dart.nullCheck(this[_canvas$]));
      return bitmapCanvas.bitmapPixelCount;
    }
    [_applyPaint](oldSurface) {
      let t$36548;
      let oldCanvas = (t$36548 = oldSurface, t$36548 == null ? null : t$36548[_canvas$]);
      this[_requiresRepaint] = false;
      if (!dart.test(dart.nullCheck(this.picture.recordingCanvas).didDraw) || dart.test(dart.nullCheck(this[_optimalLocalCullRect]).isEmpty)) {
        _engine._recycleCanvas(oldCanvas);
        if (oldSurface != null) {
          oldSurface[_canvas$] = null;
        }
        if (this.rootElement != null) {
          _engine.removeAllChildren(dart.nullCheck(this.rootElement));
        }
        if (this[_canvas$] != null && !dart.equals(this[_canvas$], oldCanvas)) {
          _engine._recycleCanvas(this[_canvas$]);
        }
        this[_canvas$] = null;
        return;
      }
      ;
      if (!(this[_optimalLocalCullRect] != null)) dart.assertFailed(null, I[298], 478, 12, "_optimalLocalCullRect != null");
      this.applyPaint(oldCanvas);
    }
    matchForUpdate(existingSurface) {
      T$11.PersistedPicture()[_as](existingSurface);
      if (existingSurface == null) dart.nullFailed(I[298], 483, 42, "existingSurface");
      if (dart.equals(existingSurface.picture, this.picture)) {
        return 0.0;
      }
      if (!dart.test(dart.nullCheck(existingSurface.picture.recordingCanvas).didDraw)) {
        return 1.0;
      }
      let didRequireBitmap = dart.nullCheck(existingSurface.picture.recordingCanvas).renderStrategy.hasArbitraryPaint;
      let requiresBitmap = dart.nullCheck(this.picture.recordingCanvas).renderStrategy.hasArbitraryPaint;
      if (didRequireBitmap != requiresBitmap) {
        return 1.0;
      } else if (!dart.test(requiresBitmap)) {
        return 1.0;
      } else {
        let oldCanvas = T$11.BitmapCanvasN()[_as](existingSurface[_canvas$]);
        if (oldCanvas == null) {
          return 1.0;
        } else if (!dart.test(oldCanvas.doesFitBounds(dart.nullCheck(this[_exactLocalCullRect]), this[_density$]))) {
          return 1.0;
        } else {
          let newPixelCount = dart.notNull(_engine.BitmapCanvas.widthToPhysical(dart.nullCheck(this[_exactLocalCullRect]).width)) * dart.notNull(_engine.BitmapCanvas.heightToPhysical(dart.nullCheck(this[_exactLocalCullRect]).height));
          let oldPixelCount = dart.notNull(oldCanvas.widthInBitmapPixels) * dart.notNull(oldCanvas.heightInBitmapPixels);
          if (oldPixelCount === 0) {
            return 1.0;
          }
          let pixelCountRatio = newPixelCount / oldPixelCount;
          if (!(0 <= pixelCountRatio && pixelCountRatio <= 1.0)) dart.assertFailed("Invalid pixel count ratio " + dart.strSafe(pixelCountRatio), I[298], 528, 16, "0 <= pixelCountRatio && pixelCountRatio <= 1.0");
          return 1.0 - pixelCountRatio;
        }
      }
    }
    applyPaint(oldCanvas) {
      if (dart.test(dart.nullCheck(this.picture.recordingCanvas).renderStrategy.hasArbitraryPaint)) {
        this[_applyBitmapPaint](oldCanvas);
      } else {
        this[_applyDomPaint](oldCanvas);
      }
    }
    [_applyDomPaint](oldCanvas) {
      _engine._recycleCanvas(this[_canvas$]);
      let domCanvas = new _engine.DomCanvas.new(dart.nullCheck(this.rootElement));
      this[_canvas$] = domCanvas;
      _engine.removeAllChildren(dart.nullCheck(this.rootElement));
      dart.nullCheck(this.picture.recordingCanvas).apply(domCanvas, dart.nullCheck(this[_optimalLocalCullRect]));
    }
    [_applyBitmapPaint](oldCanvas) {
      if (T$11.BitmapCanvas()[_is](oldCanvas) && dart.test(oldCanvas.doesFitBounds(dart.nullCheck(this[_optimalLocalCullRect]), this[_density$])) && dart.test(oldCanvas.isReusable())) {
        let reusedCanvas = oldCanvas;
        ;
        reusedCanvas.bounds = dart.nullCheck(this[_optimalLocalCullRect]);
        this[_canvas$] = reusedCanvas;
        reusedCanvas.setElementCache(this[_elementCache]);
        reusedCanvas.clear();
        dart.nullCheck(this.picture.recordingCanvas).apply(reusedCanvas, dart.nullCheck(this[_optimalLocalCullRect]));
      } else {
        _engine._recycleCanvas(oldCanvas);
        if (T$11.BitmapCanvas()[_is](this[_canvas$])) {
          T$11.BitmapCanvas()[_as](dart.nullCheck(this[_canvas$])).setElementCache(null);
        }
        this[_canvas$] = null;
        _engine.paintQueue[$add](new _engine.PaintRequest.new({canvasSize: dart.nullCheck(this[_optimalLocalCullRect]).size, paintCallback: dart.fn(() => {
            let bitmapCanvas = this[_findOrCreateCanvas](dart.nullCheck(this[_optimalLocalCullRect]));
            this[_canvas$] = bitmapCanvas;
            bitmapCanvas.setElementCache(this[_elementCache]);
            ;
            _engine.removeAllChildren(dart.nullCheck(this.rootElement));
            dart.nullCheck(this.rootElement).append(bitmapCanvas.rootElement);
            bitmapCanvas.clear();
            dart.nullCheck(this.picture.recordingCanvas).apply(bitmapCanvas, dart.nullCheck(this[_optimalLocalCullRect]));
          }, T$.VoidTovoid())}));
      }
    }
    [_findOrCreateCanvas](bounds) {
      if (bounds == null) dart.nullFailed(I[298], 608, 44, "bounds");
      let canvasSize = bounds.size;
      let bestRecycledCanvas = null;
      let lastPixelCount = 1 / 0;
      for (let i = 0; i < dart.notNull(_engine._recycledCanvases[$length]); i = i + 1) {
        let candidate = _engine._recycledCanvases[$_get](i);
        if (!dart.test(candidate.isReusable())) {
          continue;
        }
        let candidateSize = candidate.size;
        let candidatePixelCount = dart.notNull(candidateSize.width) * dart.notNull(candidateSize.height);
        let fits = candidate.doesFitBounds(bounds, this[_density$]);
        let isSmaller = candidatePixelCount < lastPixelCount;
        if (dart.test(fits) && isSmaller) {
          let requestedPixelCount = dart.notNull(bounds.width) * dart.notNull(bounds.height);
          let isTooSmall = isSmaller && requestedPixelCount > 1 && candidatePixelCount / requestedPixelCount > 4;
          if (!isTooSmall) {
            bestRecycledCanvas = candidate;
            lastPixelCount = candidatePixelCount;
            let fitsExactly = candidateSize.width == canvasSize.width && candidateSize.height == canvasSize.height;
            if (fitsExactly) {
              break;
            }
          }
        }
      }
      if (bestRecycledCanvas != null) {
        ;
        _engine._recycledCanvases[$remove](bestRecycledCanvas);
        ;
        ;
        bestRecycledCanvas.bounds = bounds;
        bestRecycledCanvas.setElementCache(this[_elementCache]);
        return bestRecycledCanvas;
      }
      ;
      let canvas = new _engine.BitmapCanvas.new(bounds, dart.nullCheck(this.picture.recordingCanvas).renderStrategy, {density: this[_density$]});
      canvas.setElementCache(this[_elementCache]);
      ;
      return canvas;
    }
    [_applyTranslate]() {
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style"), "translate(" + dart.str(this.dx) + "px, " + dart.str(this.dy) + "px)");
    }
    apply() {
      this[_applyTranslate]();
      this[_applyPaint](null);
    }
    build() {
      this[_computeOptimalCullRect](null);
      this[_requiresRepaint] = true;
      super.build();
    }
    update(oldSurface) {
      T$11.PersistedPicture()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[298], 695, 32, "oldSurface");
      super.update(oldSurface);
      this[_elementCache] = oldSurface[_elementCache];
      if (!dart.equals(oldSurface, this)) {
        oldSurface[_elementCache] = null;
      }
      if (this.dx != oldSurface.dx || this.dy != oldSurface.dy) {
        this[_applyTranslate]();
      }
      this[_computeOptimalCullRect](oldSurface);
      if (this.picture == oldSurface.picture) {
        let densityChanged = T$11.BitmapCanvas()[_is](this[_canvas$]) && this[_density$] != T$11.BitmapCanvas()[_as](dart.nullCheck(this[_canvas$])).density;
        if (dart.test(this[_requiresRepaint]) || densityChanged) {
          this[_applyPaint](oldSurface);
        } else {
          this[_canvas$] = oldSurface[_canvas$];
        }
      } else {
        this[_applyPaint](oldSurface);
      }
    }
    retain() {
      super.retain();
      this[_computeOptimalCullRect](this);
      if (dart.test(this[_requiresRepaint])) {
        this[_applyPaint](this);
      }
    }
    discard() {
      _engine._recycleCanvas(this[_canvas$]);
      this[_canvas$] = null;
      super.discard();
    }
    debugPrintChildren(buffer, indent) {
      if (buffer == null) dart.nullFailed(I[298], 744, 40, "buffer");
      if (indent == null) dart.nullFailed(I[298], 744, 52, "indent");
      super.debugPrintChildren(buffer, indent);
      if (this.rootElement != null && js_util.getProperty(T$9.DomNodeN(), dart.nullCheck(this.rootElement), "firstChild") != null) {
        let firstChild = T$9.DomElement()[_as](dart.nullCheck(js_util.getProperty(T$9.DomNodeN(), dart.nullCheck(this.rootElement), "firstChild")));
        let canvasTag = _engine['DomElementExtension|get#tagName'](firstChild)[$toLowerCase]();
        let canvasHash = dart.hashCode(firstChild);
        buffer.writeln("  "[$times](dart.notNull(indent) + 1) + "<" + canvasTag + " @" + dart.str(canvasHash) + " />");
      } else if (this.rootElement != null) {
        buffer.writeln("  "[$times](dart.notNull(indent) + 1) + "<" + _engine['DomElementExtension|get#tagName'](dart.nullCheck(this.rootElement))[$toLowerCase]() + " @" + dart.str(dart.hashCode(this)) + " />");
      } else {
        buffer.writeln("  "[$times](dart.notNull(indent) + 1) + "<recycled-canvas />");
      }
    }
    debugValidate(validationErrors) {
      if (validationErrors == null) dart.nullFailed(I[298], 760, 35, "validationErrors");
      super.debugValidate(validationErrors);
      if (dart.test(dart.nullCheck(this.picture.recordingCanvas).didDraw)) {
        if (!dart.test(dart.nullCheck(this[_optimalLocalCullRect]).isEmpty) && this.canvas == null) {
          validationErrors[$add](dart.str(dart.runtimeType(this)) + " has non-trivial picture but it has null canvas");
        }
        if (this[_optimalLocalCullRect] == null) {
          validationErrors[$add](dart.str(dart.runtimeType(this)) + " has null _optimalLocalCullRect");
        }
        if (this[_exactGlobalCullRect] == null) {
          validationErrors[$add](dart.str(dart.runtimeType(this)) + " has null _exactGlobalCullRect");
        }
        if (this[_exactLocalCullRect] == null) {
          validationErrors[$add](dart.str(dart.runtimeType(this)) + " has null _exactLocalCullRect");
        }
      }
    }
  };
  (_engine.PersistedPicture.new = function(dx, dy, picture, hints) {
    if (dx == null) dart.nullFailed(I[298], 200, 25, "dx");
    if (dy == null) dart.nullFailed(I[298], 200, 34, "dy");
    if (picture == null) dart.nullFailed(I[298], 200, 43, "picture");
    if (hints == null) dart.nullFailed(I[298], 200, 57, "hints");
    this[_canvas$] = null;
    this[_density$] = 1.0;
    this[_requiresRepaint] = false;
    this[_elementCache] = new (G$.CrossFrameCacheOfDomHTMLElement()).new();
    this[_optimalLocalCullRect] = null;
    this[_exactGlobalCullRect] = null;
    this[_exactLocalCullRect] = null;
    this[dx$0] = dx;
    this[dy$0] = dy;
    this[picture$0] = picture;
    this[hints$] = hints;
    this[localPaintBounds] = dart.nullCheck(picture.recordingCanvas).pictureBounds;
    dart.global.Object.getPrototypeOf(_engine.PersistedPicture).new.call(this);
    ;
  }).prototype = _engine.PersistedPicture.prototype;
  dart.addRtiResources(_engine.PersistedPicture, ["_engine|PersistedPicture"]);
  dart.setMethodSignature(_engine.PersistedPicture, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    [_computeExactCullRects]: T$.VoidTovoid(),
    [_computeOptimalCullRect]: T$11.PersistedPictureNTovoid(),
    [_applyPaint]: T$11.PersistedPictureNTovoid(),
    matchForUpdate: T$.ObjectNTodouble(),
    applyPaint: T$11.EngineCanvasNTovoid(),
    [_applyDomPaint]: T$11.EngineCanvasNTovoid(),
    [_applyBitmapPaint]: T$11.EngineCanvasNTovoid(),
    [_findOrCreateCanvas]: T$10.RectToBitmapCanvas(),
    [_applyTranslate]: T$.VoidTovoid(),
    apply: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedPicture))));
  dart.setStaticMethodSignature(_engine.PersistedPicture, () => ['_predictTrend']);
  dart.setGetterSignature(_engine.PersistedPicture, () => dart.global.Object.setPrototypeOf({
    canvas: T$11.EngineCanvasN(),
    optimalLocalCullRect: T$9.RectN$1(),
    debugExactGlobalCullRect: T$9.RectN$1(),
    bitmapPixelCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PersistedPicture))));
  dart.setLibraryUri(_engine.PersistedPicture, I[220]);
  dart.setFieldSignature(_engine.PersistedPicture, () => dart.global.Object.setPrototypeOf({
    [_canvas$]: {type: T$11.EngineCanvasN(), isConst: false, isFinal: false, libraryUri: I[220]},
    dx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    dy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    picture: {type: T$11.EnginePicture(), isConst: false, isFinal: true, libraryUri: I[220]},
    localPaintBounds: {type: T$9.RectN$1(), isConst: false, isFinal: true, libraryUri: I[198]},
    hints: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_density$]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_requiresRepaint]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_elementCache]: {type: T$10.CrossFrameCacheNOfDomHTMLElement(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_optimalLocalCullRect]: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_exactGlobalCullRect]: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_exactLocalCullRect]: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedPicture))));
  var platformViewId$ = dart.privateName(_engine, "PersistedPlatformView.platformViewId");
  var dx$1 = dart.privateName(_engine, "PersistedPlatformView.dx");
  var dy$1 = dart.privateName(_engine, "PersistedPlatformView.dy");
  var width$4 = dart.privateName(_engine, "PersistedPlatformView.width");
  var height$4 = dart.privateName(_engine, "PersistedPlatformView.height");
  _engine.PersistedPlatformView = class PersistedPlatformView extends _engine.PersistedLeafSurface {
    get platformViewId() {
      return this[platformViewId$];
    }
    set platformViewId(value) {
      super.platformViewId = value;
    }
    get dx() {
      return this[dx$1];
    }
    set dx(value) {
      super.dx = value;
    }
    get dy() {
      return this[dy$1];
    }
    set dy(value) {
      super.dy = value;
    }
    get width() {
      return this[width$4];
    }
    set width(value) {
      super.width = value;
    }
    get height() {
      return this[height$4];
    }
    set height(value) {
      super.height = value;
    }
    static ['_#new#tearOff'](platformViewId, dx, dy, width, height) {
      if (platformViewId == null) dart.nullFailed(I[299], 9, 30, "platformViewId");
      if (dx == null) dart.nullFailed(I[299], 9, 51, "dx");
      if (dy == null) dart.nullFailed(I[299], 9, 60, "dy");
      if (width == null) dart.nullFailed(I[299], 9, 69, "width");
      if (height == null) dart.nullFailed(I[299], 9, 81, "height");
      return new _engine.PersistedPlatformView.new(platformViewId, dx, dy, width, height);
    }
    createElement() {
      return _engine.createPlatformViewSlot(this.platformViewId);
    }
    apply() {
      let t$36548;
      t$36548 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#transform'](t$36548, "translate(" + dart.str(this.dx) + "px, " + dart.str(this.dy) + "px)");
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36548, dart.str(this.width) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36548, dart.str(this.height) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36548, "absolute");
        return t$36548;
      })();
    }
    canUpdateAsMatch(oldSurface) {
      if (oldSurface == null) dart.nullFailed(I[299], 39, 42, "oldSurface");
      if (dart.test(super.canUpdateAsMatch(oldSurface))) {
        return this.platformViewId == T$11.PersistedPlatformView()[_as](oldSurface).platformViewId;
      }
      return false;
    }
    matchForUpdate(existingSurface) {
      T$11.PersistedPlatformView()[_as](existingSurface);
      if (existingSurface == null) dart.nullFailed(I[299], 48, 47, "existingSurface");
      return existingSurface.platformViewId == this.platformViewId ? 0.0 : 1.0;
    }
    update(oldSurface) {
      T$11.PersistedPlatformView()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[299], 53, 37, "oldSurface");
      if (!(this.platformViewId == oldSurface.platformViewId)) dart.assertFailed("PersistedPlatformView with different platformViewId should never be updated. Check the canUpdateAsMatch method.", I[299], 55, 7, "platformViewId == oldSurface.platformViewId");
      super.update(oldSurface);
      if (this.dx != oldSurface.dx || this.dy != oldSurface.dy || this.width != oldSurface.width || this.height != oldSurface.height) {
        this.apply();
      }
    }
  };
  (_engine.PersistedPlatformView.new = function(platformViewId, dx, dy, width, height) {
    if (platformViewId == null) dart.nullFailed(I[299], 9, 30, "platformViewId");
    if (dx == null) dart.nullFailed(I[299], 9, 51, "dx");
    if (dy == null) dart.nullFailed(I[299], 9, 60, "dy");
    if (width == null) dart.nullFailed(I[299], 9, 69, "width");
    if (height == null) dart.nullFailed(I[299], 9, 81, "height");
    this[platformViewId$] = platformViewId;
    this[dx$1] = dx;
    this[dy$1] = dy;
    this[width$4] = width;
    this[height$4] = height;
    dart.global.Object.getPrototypeOf(_engine.PersistedPlatformView).new.call(this);
    let implicitView = dart.nullCheck(_engine.EnginePlatformDispatcher.instance.implicitView);
    implicitView.dom.injectPlatformView(this.platformViewId);
  }).prototype = _engine.PersistedPlatformView.prototype;
  dart.addRtiResources(_engine.PersistedPlatformView, ["_engine|PersistedPlatformView"]);
  dart.setMethodSignature(_engine.PersistedPlatformView, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid(),
    matchForUpdate: T$.ObjectNTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedPlatformView))));
  dart.setLibraryUri(_engine.PersistedPlatformView, I[220]);
  dart.setFieldSignature(_engine.PersistedPlatformView, () => dart.global.Object.setPrototypeOf({
    platformViewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    dx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    dy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    width: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedPlatformView))));
  var renderStrategy = dart.privateName(_engine, "RecordingCanvas.renderStrategy");
  var _pictureBounds = dart.privateName(_engine, "_pictureBounds");
  var _commands = dart.privateName(_engine, "_commands");
  var _didDraw = dart.privateName(_engine, "_didDraw");
  var _recordingEnded = dart.privateName(_engine, "_recordingEnded");
  var _paintBounds = dart.privateName(_engine, "_paintBounds");
  var _currentMatrix = dart.privateName(_engine, "_currentMatrix");
  var _growPaintBoundsByPoints = dart.privateName(_engine, "_growPaintBoundsByPoints");
  _engine.RecordingCanvas = class RecordingCanvas extends core.Object {
    get renderStrategy() {
      return this[renderStrategy];
    }
    set renderStrategy(value) {
      super.renderStrategy = value;
    }
    static ['_#new#tearOff'](bounds) {
      return new _engine.RecordingCanvas.new(bounds);
    }
    get pictureBounds() {
      if (!dart.test(this[_recordingEnded])) dart.assertFailed("Picture bounds not available yet. Call [endRecording] before accessing picture bounds.", I[300], 32, 7, "_recordingEnded");
      return this[_pictureBounds];
    }
    get debugPaintCommands() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_commands];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 45, 12, "() {\n      result = _commands;\n      return true;\n    }()");
      if (result != null) {
        return dart.nullCheck(result);
      }
      dart.throw(new core.UnsupportedError.new("For debugging only."));
    }
    debugEnforceArbitraryPaint() {
      this.renderStrategy.hasArbitraryPaint = true;
    }
    get didDraw() {
      return this[_didDraw];
    }
    endRecording() {
      this[_pictureBounds] = this[_paintBounds].computeBounds();
      this[_recordingEnded] = true;
    }
    apply(engineCanvas, clipRect) {
      if (engineCanvas == null) dart.nullFailed(I[300], 106, 27, "engineCanvas");
      if (clipRect == null) dart.nullFailed(I[300], 106, 49, "clipRect");
      this.applyCommands(engineCanvas, clipRect);
      engineCanvas.endOfPaint();
    }
    applyCommands(engineCanvas, clipRect) {
      if (engineCanvas == null) dart.nullFailed(I[300], 117, 35, "engineCanvas");
      if (clipRect == null) dart.nullFailed(I[300], 117, 57, "clipRect");
      if (!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 118, 12, "_recordingEnded");
      {
        try {
          if (dart.test(_engine.rectContainsOther(clipRect, dart.nullCheck(this[_pictureBounds])))) {
            let len = this[_commands][$length];
            for (let i = 0; i < dart.notNull(len); i = i + 1) {
              this[_commands][$_get](i).apply(engineCanvas);
            }
          } else {
            let len = this[_commands][$length];
            for (let i = 0; i < dart.notNull(len); i = i + 1) {
              let command = this[_commands][$_get](i);
              if (T$11.DrawCommand()[_is](command)) {
                if (dart.test(command.isInvisible(clipRect))) {
                  continue;
                }
              }
              command.apply(engineCanvas);
            }
          }
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](e)) {
            if (!dart.test(_engine.isNsErrorFailureException(e))) {
              dart.rethrow(t$36$35e);
            }
          } else
            throw t$36$35e;
        }
      }
    }
    debugPrintCommands() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        let debugBuf = new core.StringBuffer.new();
        for (let i = 0; i < dart.notNull(this[_commands][$length]); i = i + 1) {
          let command = this[_commands][$_get](i);
          debugBuf.writeln("ctx." + dart.str(command) + ";");
        }
        result = dart.toString(debugBuf);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 181, 12, "() {\n      final StringBuffer debugBuf = StringBuffer();\n      for (int i = 0; i < _commands.length; i++) {\n        final PaintCommand command = _commands[i];\n        debugBuf.writeln('ctx.$command;');\n      }\n      result = debugBuf.toString();\n      return true;\n    }()");
      return result;
    }
    save() {
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 194, 12, "!_recordingEnded");
      this[_paintBounds].saveTransformsAndClip();
      this[_commands][$add](C[872] || CT.C872);
      this[_saveCount] = dart.notNull(this[_saveCount]) + 1;
    }
    saveLayerWithoutBounds(paint) {
      if (paint == null) dart.nullFailed(I[300], 200, 44, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 201, 12, "!_recordingEnded");
      this.renderStrategy.hasArbitraryPaint = true;
      this[_commands][$add](C[872] || CT.C872);
      this[_paintBounds].saveTransformsAndClip();
      this[_saveCount] = dart.notNull(this[_saveCount]) + 1;
    }
    saveLayer(bounds, paint) {
      if (bounds == null) dart.nullFailed(I[300], 209, 26, "bounds");
      if (paint == null) dart.nullFailed(I[300], 209, 47, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 210, 12, "!_recordingEnded");
      this.renderStrategy.hasArbitraryPaint = true;
      this[_commands][$add](C[872] || CT.C872);
      this[_paintBounds].saveTransformsAndClip();
      this[_saveCount] = dart.notNull(this[_saveCount]) + 1;
    }
    restore() {
      if (!dart.test(this[_recordingEnded]) && dart.notNull(this[_saveCount]) > 1) {
        this[_paintBounds].restoreTransformsAndClip();
      }
      if (dart.test(this[_commands][$isNotEmpty]) && T$11.PaintSave()[_is](this[_commands][$last])) {
        this[_commands][$removeLast]();
      } else {
        this[_commands][$add](C[873] || CT.C873);
      }
      this[_saveCount] = dart.notNull(this[_saveCount]) - 1;
    }
    restoreToCount(count) {
      if (count == null) dart.nullFailed(I[300], 234, 27, "count");
      while (dart.notNull(count) < dart.notNull(this[_saveCount]) && dart.notNull(this[_saveCount]) > 1) {
        this.restore();
      }
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[300], 240, 25, "dx");
      if (dy == null) dart.nullFailed(I[300], 240, 36, "dy");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 241, 12, "!_recordingEnded");
      this[_paintBounds].translate(dx, dy);
      this[_commands][$add](new _engine.PaintTranslate.new(dx, dy));
    }
    scale(sx, sy) {
      if (sx == null) dart.nullFailed(I[300], 246, 21, "sx");
      if (sy == null) dart.nullFailed(I[300], 246, 32, "sy");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 247, 12, "!_recordingEnded");
      this[_paintBounds].scale(sx, sy);
      this[_commands][$add](new _engine.PaintScale.new(sx, sy));
    }
    rotate(radians) {
      if (radians == null) dart.nullFailed(I[300], 252, 22, "radians");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 253, 12, "!_recordingEnded");
      this[_paintBounds].rotateZ(radians);
      this[_commands][$add](new _engine.PaintRotate.new(radians));
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[300], 258, 30, "matrix4");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 259, 12, "!_recordingEnded");
      this[_paintBounds].transform(matrix4);
      this[_commands][$add](new _engine.PaintTransform.new(matrix4));
    }
    getCurrentMatrixUnsafe() {
      return this[_paintBounds][_currentMatrix].storage;
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[300], 266, 20, "sx");
      if (sy == null) dart.nullFailed(I[300], 266, 31, "sy");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 267, 12, "!_recordingEnded");
      this.renderStrategy.hasArbitraryPaint = true;
      this[_paintBounds].skew(sx, sy);
      this[_commands][$add](new _engine.PaintSkew.new(sx, sy));
    }
    clipRect(rect, clipOp) {
      if (rect == null) dart.nullFailed(I[300], 273, 25, "rect");
      if (clipOp == null) dart.nullFailed(I[300], 273, 41, "clipOp");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 274, 12, "!_recordingEnded");
      let command = new _engine.PaintClipRect.new(rect, clipOp);
      switch (clipOp) {
        case C[506] || CT.C506:
          {
            this[_paintBounds].clipRect(rect, command);
            break;
          }
        case C[505] || CT.C505:
          {
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
      this.renderStrategy.hasArbitraryPaint = true;
      this[_commands][$add](command);
    }
    clipRRect(roundedRect) {
      if (roundedRect == null) dart.nullFailed(I[300], 287, 27, "roundedRect");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 288, 12, "!_recordingEnded");
      let command = new _engine.PaintClipRRect.new(roundedRect);
      this[_paintBounds].clipRect(roundedRect.outerRect, command);
      this.renderStrategy.hasArbitraryPaint = true;
      this[_commands][$add](command);
    }
    clipPath(path, opts) {
      if (path == null) dart.nullFailed(I[300], 295, 25, "path");
      let doAntiAlias = opts && 'doAntiAlias' in opts ? opts.doAntiAlias : true;
      if (doAntiAlias == null) dart.nullFailed(I[300], 295, 37, "doAntiAlias");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 296, 12, "!_recordingEnded");
      let command = new _engine.PaintClipPath.new(T$9.SurfacePath()[_as](path));
      this[_paintBounds].clipRect(path.getBounds(), command);
      this.renderStrategy.hasArbitraryPaint = true;
      this[_commands][$add](command);
    }
    getDestinationClipBounds() {
      return this[_paintBounds].getDestinationClipBounds();
    }
    drawColor(color, blendMode) {
      if (color == null) dart.nullFailed(I[300], 306, 27, "color");
      if (blendMode == null) dart.nullFailed(I[300], 306, 47, "blendMode");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 307, 12, "!_recordingEnded");
      let command = new _engine.PaintDrawColor.new(color, blendMode);
      this[_commands][$add](command);
      this[_paintBounds].grow(this[_paintBounds].maxPaintBounds, command);
    }
    drawLine(p1, p2, paint) {
      if (p1 == null) dart.nullFailed(I[300], 313, 27, "p1");
      if (p2 == null) dart.nullFailed(I[300], 313, 41, "p2");
      if (paint == null) dart.nullFailed(I[300], 313, 58, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 314, 12, "!_recordingEnded");
      if (!(paint.shader == null || !T$9.EngineImageShader()[_is](paint.shader))) dart.assertFailed("ImageShader not supported yet", I[300], 315, 12, "paint.shader == null || paint.shader is! EngineImageShader");
      let paintSpread = math.max(T$.double(), _engine._getPaintSpread(paint), 1.0);
      let command = new _engine.PaintDrawLine.new(p1, p2, paint.paintData);
      this[_paintBounds].growLTRB(math.min(T$.double(), p1.dx, p2.dx) - paintSpread, math.min(T$.double(), p1.dy, p2.dy) - paintSpread, math.max(T$.double(), p1.dx, p2.dx) + paintSpread, math.max(T$.double(), p1.dy, p2.dy) + paintSpread, command);
      this.renderStrategy.hasArbitraryPaint = true;
      this[_didDraw] = true;
      this[_commands][$add](command);
    }
    drawPaint(paint) {
      if (paint == null) dart.nullFailed(I[300], 338, 31, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 339, 12, "!_recordingEnded");
      if (!(paint.shader == null || !T$9.EngineImageShader()[_is](paint.shader))) dart.assertFailed("ImageShader not supported yet", I[300], 340, 12, "paint.shader == null || paint.shader is! EngineImageShader");
      this.renderStrategy.hasArbitraryPaint = true;
      this[_didDraw] = true;
      let command = new _engine.PaintDrawPaint.new(paint.paintData);
      this[_paintBounds].grow(this[_paintBounds].maxPaintBounds, command);
      this[_commands][$add](command);
    }
    drawRect(rect, paint) {
      if (rect == null) dart.nullFailed(I[300], 349, 25, "rect");
      if (paint == null) dart.nullFailed(I[300], 349, 44, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 350, 12, "!_recordingEnded");
      if (paint.shader != null) {
        this.renderStrategy.hasArbitraryPaint = true;
      }
      this[_didDraw] = true;
      let paintSpread = _engine._getPaintSpread(paint);
      let command = new _engine.PaintDrawRect.new(rect, paint.paintData);
      if (paintSpread !== 0.0) {
        this[_paintBounds].grow(rect.inflate(paintSpread), command);
      } else {
        this[_paintBounds].grow(rect, command);
      }
      this[_commands][$add](command);
    }
    drawRRect(rrect, paint) {
      if (rrect == null) dart.nullFailed(I[300], 365, 27, "rrect");
      if (paint == null) dart.nullFailed(I[300], 365, 47, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 366, 12, "!_recordingEnded");
      if (paint.shader != null || !dart.test(rrect.webOnlyUniformRadii)) {
        this.renderStrategy.hasArbitraryPaint = true;
      }
      this[_didDraw] = true;
      let paintSpread = _engine._getPaintSpread(paint);
      let left = math.min(T$.double(), rrect.left, rrect.right) - dart.notNull(paintSpread);
      let top = math.min(T$.double(), rrect.top, rrect.bottom) - dart.notNull(paintSpread);
      let right = math.max(T$.double(), rrect.left, rrect.right) + dart.notNull(paintSpread);
      let bottom = math.max(T$.double(), rrect.top, rrect.bottom) + dart.notNull(paintSpread);
      let command = new _engine.PaintDrawRRect.new(rrect, paint.paintData);
      this[_paintBounds].growLTRB(left, top, right, bottom, command);
      this[_commands][$add](command);
    }
    drawDRRect(outer, inner, paint) {
      if (outer == null) dart.nullFailed(I[300], 381, 28, "outer");
      if (inner == null) dart.nullFailed(I[300], 381, 44, "inner");
      if (paint == null) dart.nullFailed(I[300], 381, 64, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 382, 12, "!_recordingEnded");
      let innerRect = inner.outerRect;
      let outerRect = outer.outerRect;
      if (dart.equals(outerRect, innerRect) || !dart.equals(outerRect.intersect(innerRect), innerRect)) {
        return;
      }
      let scaledOuter = outer.scaleRadii();
      let scaledInner = inner.scaleRadii();
      let outerTl = _engine._measureBorderRadius(scaledOuter.tlRadiusX, scaledOuter.tlRadiusY);
      let outerTr = _engine._measureBorderRadius(scaledOuter.trRadiusX, scaledOuter.trRadiusY);
      let outerBl = _engine._measureBorderRadius(scaledOuter.blRadiusX, scaledOuter.blRadiusY);
      let outerBr = _engine._measureBorderRadius(scaledOuter.brRadiusX, scaledOuter.brRadiusY);
      let innerTl = _engine._measureBorderRadius(scaledInner.tlRadiusX, scaledInner.tlRadiusY);
      let innerTr = _engine._measureBorderRadius(scaledInner.trRadiusX, scaledInner.trRadiusY);
      let innerBl = _engine._measureBorderRadius(scaledInner.blRadiusX, scaledInner.blRadiusY);
      let innerBr = _engine._measureBorderRadius(scaledInner.brRadiusX, scaledInner.brRadiusY);
      if (dart.notNull(innerTl) > dart.notNull(outerTl) || dart.notNull(innerTr) > dart.notNull(outerTr) || dart.notNull(innerBl) > dart.notNull(outerBl) || dart.notNull(innerBr) > dart.notNull(outerBr)) {
        return;
      }
      this.renderStrategy.hasArbitraryPaint = true;
      this[_didDraw] = true;
      let paintSpread = _engine._getPaintSpread(paint);
      let command = new _engine.PaintDrawDRRect.new(outer, inner, paint.paintData);
      let left = math.min(T$.double(), outer.left, outer.right);
      let right = math.max(T$.double(), outer.left, outer.right);
      let top = math.min(T$.double(), outer.top, outer.bottom);
      let bottom = math.max(T$.double(), outer.top, outer.bottom);
      this[_paintBounds].growLTRB(left - dart.notNull(paintSpread), top - dart.notNull(paintSpread), right + dart.notNull(paintSpread), bottom + dart.notNull(paintSpread), command);
      this[_commands][$add](command);
    }
    drawOval(rect, paint) {
      if (rect == null) dart.nullFailed(I[300], 439, 25, "rect");
      if (paint == null) dart.nullFailed(I[300], 439, 44, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 440, 12, "!_recordingEnded");
      this.renderStrategy.hasArbitraryPaint = true;
      this[_didDraw] = true;
      let paintSpread = _engine._getPaintSpread(paint);
      let command = new _engine.PaintDrawOval.new(rect, paint.paintData);
      if (paintSpread !== 0.0) {
        this[_paintBounds].grow(rect.inflate(paintSpread), command);
      } else {
        this[_paintBounds].grow(rect, command);
      }
      this[_commands][$add](command);
    }
    drawCircle(c, radius, paint) {
      if (c == null) dart.nullFailed(I[300], 453, 29, "c");
      if (radius == null) dart.nullFailed(I[300], 453, 39, "radius");
      if (paint == null) dart.nullFailed(I[300], 453, 60, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 454, 12, "!_recordingEnded");
      this.renderStrategy.hasArbitraryPaint = true;
      this[_didDraw] = true;
      let paintSpread = _engine._getPaintSpread(paint);
      let command = new _engine.PaintDrawCircle.new(c, radius, paint.paintData);
      let distance = dart.notNull(radius) + dart.notNull(paintSpread);
      this[_paintBounds].growLTRB(dart.notNull(c.dx) - distance, dart.notNull(c.dy) - distance, dart.notNull(c.dx) + distance, dart.notNull(c.dy) + distance, command);
      this[_commands][$add](command);
    }
    drawPath(path, paint) {
      if (path == null) dart.nullFailed(I[300], 470, 25, "path");
      if (paint == null) dart.nullFailed(I[300], 470, 44, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 471, 12, "!_recordingEnded");
      if (paint.shader == null) {
        let sPath = T$9.SurfacePath()[_as](path);
        let rect = sPath.toRect();
        if (rect != null) {
          this.drawRect(rect, paint);
          return;
        }
        let rrect = sPath.toRoundedRect();
        if (rrect != null) {
          this.drawRRect(rrect, paint);
          return;
        }
        let line = sPath.toStraightLine();
        if (line != null && paint.strokeWidth === 0) {
          let left = math.min(T$.double(), line.left, line.right);
          let top = math.min(T$.double(), line.top, line.bottom);
          let width = line.width[$abs]();
          let height = line.height[$abs]();
          let inflatedHeight = line.height === 0 ? 1.0 : height;
          let inflatedWidth = line.width === 0 ? 1.0 : width;
          let inflatedSize = new ui.Size.new(inflatedWidth, inflatedHeight);
          paint.style = ui.PaintingStyle.fill;
          this.drawRect(new ui.Offset.new(left, top)['&'](inflatedSize), paint);
          return;
        }
      }
      let sPath = T$9.SurfacePath()[_as](path);
      if (!dart.test(sPath.pathRef.isEmpty)) {
        this.renderStrategy.hasArbitraryPaint = true;
        this[_didDraw] = true;
        let pathBounds = sPath.getBounds();
        let paintSpread = _engine._getPaintSpread(paint);
        if (paintSpread !== 0.0) {
          pathBounds = pathBounds.inflate(paintSpread);
        }
        let clone = new _engine.SurfacePath.shallowCopy(path);
        let command = new _engine.PaintDrawPath.new(T$9.SurfacePath()[_as](clone), paint.paintData);
        this[_paintBounds].grow(pathBounds, command);
        clone.fillType = sPath.fillType;
        this[_commands][$add](command);
      }
    }
    drawImage(image, offset, paint) {
      if (image == null) dart.nullFailed(I[300], 520, 27, "image");
      if (offset == null) dart.nullFailed(I[300], 520, 44, "offset");
      if (paint == null) dart.nullFailed(I[300], 520, 65, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 521, 12, "!_recordingEnded");
      if (!(paint.shader == null || !T$9.EngineImageShader()[_is](paint.shader))) dart.assertFailed("ImageShader not supported yet", I[300], 522, 12, "paint.shader == null || paint.shader is! EngineImageShader");
      this.renderStrategy.hasArbitraryPaint = true;
      this.renderStrategy.hasImageElements = true;
      this[_didDraw] = true;
      let left = offset.dx;
      let top = offset.dy;
      let command = new _engine.PaintDrawImage.new(image, offset, paint.paintData);
      this[_paintBounds].growLTRB(left, top, dart.notNull(left) + dart.notNull(image.width), dart.notNull(top) + dart.notNull(image.height), command);
      this[_commands][$add](command);
    }
    drawPicture(picture) {
      if (picture == null) dart.nullFailed(I[300], 536, 31, "picture");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 537, 12, "!_recordingEnded");
      let enginePicture = T$11.EnginePicture()[_as](picture);
      if (enginePicture.recordingCanvas == null) {
        return;
      }
      let pictureRecording = dart.nullCheck(enginePicture.recordingCanvas);
      if (dart.test(pictureRecording[_didDraw])) {
        this[_didDraw] = true;
      }
      this.renderStrategy.merge(pictureRecording.renderStrategy);
      this.save();
      this[_commands][$addAll](pictureRecording[_commands]);
      this.restore();
      if (pictureRecording[_pictureBounds] != null) {
        this[_paintBounds].growBounds(dart.nullCheck(pictureRecording[_pictureBounds]));
      }
    }
    drawImageRect(image, src, dst, paint) {
      if (image == null) dart.nullFailed(I[300], 559, 16, "image");
      if (src == null) dart.nullFailed(I[300], 559, 31, "src");
      if (dst == null) dart.nullFailed(I[300], 559, 44, "dst");
      if (paint == null) dart.nullFailed(I[300], 559, 62, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 560, 12, "!_recordingEnded");
      if (!(paint.shader == null || !T$9.EngineImageShader()[_is](paint.shader))) dart.assertFailed("ImageShader not supported yet", I[300], 561, 12, "paint.shader == null || paint.shader is! EngineImageShader");
      this.renderStrategy.hasArbitraryPaint = true;
      this.renderStrategy.hasImageElements = true;
      this[_didDraw] = true;
      let command = new _engine.PaintDrawImageRect.new(image, src, dst, paint.paintData);
      this[_paintBounds].grow(dst, command);
      this[_commands][$add](command);
    }
    drawParagraph(paragraph, offset) {
      if (paragraph == null) dart.nullFailed(I[300], 572, 35, "paragraph");
      if (offset == null) dart.nullFailed(I[300], 572, 56, "offset");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 573, 12, "!_recordingEnded");
      let engineParagraph = T$10.CanvasParagraph()[_as](paragraph);
      if (!dart.test(engineParagraph.isLaidOut)) {
        return;
      }
      this[_didDraw] = true;
      if (dart.test(engineParagraph.hasArbitraryPaint)) {
        this.renderStrategy.hasArbitraryPaint = true;
      }
      this.renderStrategy.hasParagraphs = true;
      let command = new _engine.PaintDrawParagraph.new(engineParagraph, offset);
      let paragraphBounds = engineParagraph.paintBounds;
      this[_paintBounds].growLTRB(dart.notNull(offset.dx) + dart.notNull(paragraphBounds.left), dart.notNull(offset.dy) + dart.notNull(paragraphBounds.top), dart.notNull(offset.dx) + dart.notNull(paragraphBounds.right), dart.notNull(offset.dy) + dart.notNull(paragraphBounds.bottom), command);
      this[_commands][$add](command);
    }
    drawShadow(path, color, elevation, transparentOccluder) {
      if (path == null) dart.nullFailed(I[300], 600, 27, "path");
      if (color == null) dart.nullFailed(I[300], 600, 42, "color");
      if (elevation == null) dart.nullFailed(I[300], 600, 56, "elevation");
      if (transparentOccluder == null) dart.nullFailed(I[300], 601, 12, "transparentOccluder");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 602, 12, "!_recordingEnded");
      this.renderStrategy.hasArbitraryPaint = true;
      this[_didDraw] = true;
      let shadowRect = _engine.computePenumbraBounds(path.getBounds(), elevation);
      let command = new _engine.PaintDrawShadow.new(T$9.SurfacePath()[_as](path), color, elevation, transparentOccluder);
      this[_paintBounds].grow(shadowRect, command);
      this[_commands][$add](command);
    }
    drawVertices(vertices, blendMode, paint) {
      if (vertices == null) dart.nullFailed(I[300], 614, 23, "vertices");
      if (blendMode == null) dart.nullFailed(I[300], 614, 46, "blendMode");
      if (paint == null) dart.nullFailed(I[300], 614, 70, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 615, 12, "!_recordingEnded");
      this.renderStrategy.hasArbitraryPaint = true;
      this[_didDraw] = true;
      let command = new _engine.PaintDrawVertices.new(vertices, blendMode, paint.paintData);
      this[_growPaintBoundsByPoints](vertices.positions, 0.0, paint, command);
      this[_commands][$add](command);
    }
    drawRawPoints(pointMode, points, paint) {
      if (pointMode == null) dart.nullFailed(I[300], 625, 20, "pointMode");
      if (points == null) dart.nullFailed(I[300], 625, 43, "points");
      if (paint == null) dart.nullFailed(I[300], 625, 64, "paint");
      if (!!dart.test(this[_recordingEnded])) dart.assertFailed(null, I[300], 626, 12, "!_recordingEnded");
      this.renderStrategy.hasArbitraryPaint = true;
      this[_didDraw] = true;
      let command = new _engine.PaintDrawPoints.new(pointMode, points, paint.paintData);
      this[_growPaintBoundsByPoints](points, paint.strokeWidth, paint, command);
      this[_commands][$add](command);
    }
    [_growPaintBoundsByPoints](points, thickness, paint, command) {
      if (points == null) dart.nullFailed(I[300], 635, 45, "points");
      if (thickness == null) dart.nullFailed(I[300], 635, 60, "thickness");
      if (paint == null) dart.nullFailed(I[300], 636, 20, "paint");
      if (command == null) dart.nullFailed(I[300], 636, 39, "command");
      let minValueX = null;
      let maxValueX = null;
      let minValueY = null;
      let maxValueY = null;
      minValueX = maxValueX = points[$_get](0);
      minValueY = maxValueY = points[$_get](1);
      let len = points[$length];
      for (let i = 2; i < dart.notNull(len); i = i + 2) {
        let x = points[$_get](i);
        let y = points[$_get](i + 1);
        if (x[$isNaN] || y[$isNaN]) {
          return;
        }
        minValueX = math.min(T$.double(), minValueX, x);
        maxValueX = math.max(T$.double(), maxValueX, x);
        minValueY = math.min(T$.double(), minValueY, y);
        maxValueY = math.max(T$.double(), maxValueY, y);
      }
      let distance = dart.notNull(thickness) / 2.0;
      let paintSpread = _engine._getPaintSpread(paint);
      this[_paintBounds].growLTRB(dart.notNull(minValueX) - distance - dart.notNull(paintSpread), dart.notNull(minValueY) - distance - dart.notNull(paintSpread), dart.notNull(maxValueX) + distance + dart.notNull(paintSpread), dart.notNull(maxValueY) + distance + dart.notNull(paintSpread), command);
    }
    get saveCount() {
      return this[_saveCount];
    }
    debugDumpCommands() {
      core.print("/"[$times](40) + " CANVAS COMMANDS " + "/"[$times](40));
      this[_commands][$forEach](C[874] || CT.C874);
      core.print("/"[$times](37) + " END OF CANVAS COMMANDS " + "/"[$times](36));
    }
  };
  (_engine.RecordingCanvas.new = function(bounds) {
    let t$36548;
    this[_pictureBounds] = null;
    this[_commands] = G$.JSArrayOfPaintCommand().of([]);
    this[renderStrategy] = new _engine.RenderStrategy.new();
    this[_didDraw] = false;
    this[_recordingEnded] = false;
    this[_saveCount] = 1;
    this[_paintBounds] = new _engine._PaintBounds.new((t$36548 = bounds, t$36548 == null ? ui.Rect.largest : t$36548));
    ;
  }).prototype = _engine.RecordingCanvas.prototype;
  dart.addRtiResources(_engine.RecordingCanvas, ["_engine|RecordingCanvas"]);
  dart.setMethodSignature(_engine.RecordingCanvas, () => dart.global.Object.setPrototypeOf({
    debugEnforceArbitraryPaint: T$.VoidTovoid(),
    endRecording: T$.VoidTovoid(),
    apply: T$11.EngineCanvasAndRectTovoid(),
    applyCommands: T$11.EngineCanvasAndRectTovoid(),
    debugPrintCommands: T$8.VoidToStringN(),
    save: T$.VoidTovoid(),
    saveLayerWithoutBounds: T$11.SurfacePaintTovoid(),
    saveLayer: T$11.RectAndSurfacePaintTovoid(),
    restore: T$.VoidTovoid(),
    restoreToCount: T$.intTovoid(),
    translate: T$9.doubleAnddoubleTovoid(),
    scale: T$9.doubleAnddoubleTovoid(),
    rotate: T$9.doubleTovoid(),
    transform: T$7.Float32ListTovoid(),
    getCurrentMatrixUnsafe: T$0.VoidToFloat32List(),
    skew: T$9.doubleAnddoubleTovoid(),
    clipRect: T$10.RectAndClipOpTovoid(),
    clipRRect: T$9.RRectTovoid(),
    clipPath: T$9.Path__Tovoid(),
    getDestinationClipBounds: T$11.VoidToRectN(),
    drawColor: T$9.ColorAndBlendModeTovoid(),
    drawLine: T$11.OffsetAndOffsetAndSurfacePaintTovoid(),
    drawPaint: T$11.SurfacePaintTovoid(),
    drawRect: T$11.RectAndSurfacePaintTovoid(),
    drawRRect: T$11.RRectAndSurfacePaintTovoid(),
    drawDRRect: T$11.RRectAndRRectAndSurfacePaintTovoid(),
    drawOval: T$11.RectAndSurfacePaintTovoid(),
    drawCircle: T$11.OffsetAnddoubleAndSurfacePaintTovoid(),
    drawPath: T$11.PathAndSurfacePaintTovoid(),
    drawImage: T$11.ImageAndOffsetAndSurfacePaintTovoid(),
    drawPicture: T$9.PictureTovoid(),
    drawImageRect: T$11.ImageAndRectAndRect__Tovoid$2(),
    drawParagraph: T$9.ParagraphAndOffsetTovoid(),
    drawShadow: T$9.PathAndColorAnddouble__Tovoid(),
    drawVertices: T$11.SurfaceVerticesAndBlendModeAndSurfacePaintTovoid(),
    drawRawPoints: T$11.PointModeAndFloat32ListAndSurfacePaintTovoid(),
    [_growPaintBoundsByPoints]: T$11.Float32ListAnddoubleAndSurfacePaint__Tovoid(),
    debugDumpCommands: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RecordingCanvas))));
  dart.setGetterSignature(_engine.RecordingCanvas, () => dart.global.Object.setPrototypeOf({
    pictureBounds: T$9.RectN$1(),
    debugPaintCommands: T$11.ListOfPaintCommand(),
    didDraw: T$.bool(),
    saveCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.RecordingCanvas))));
  dart.setLibraryUri(_engine.RecordingCanvas, I[220]);
  dart.setFieldSignature(_engine.RecordingCanvas, () => dart.global.Object.setPrototypeOf({
    [_paintBounds]: {type: T$11._PaintBounds(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_pictureBounds]: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_commands]: {type: T$11.ListOfPaintCommand(), isConst: false, isFinal: true, libraryUri: I[11]},
    renderStrategy: {type: T$10.RenderStrategy(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_didDraw]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_recordingEnded]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_saveCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RecordingCanvas))));
  _engine.PaintCommand = class PaintCommand extends core.Object {};
  (_engine.PaintCommand.new = function() {
    ;
  }).prototype = _engine.PaintCommand.prototype;
  dart.addRtiResources(_engine.PaintCommand, ["_engine|PaintCommand"]);
  dart.setLibraryUri(_engine.PaintCommand, I[220]);
  var isClippedOut = dart.privateName(_engine, "DrawCommand.isClippedOut");
  var leftBound = dart.privateName(_engine, "DrawCommand.leftBound");
  var topBound = dart.privateName(_engine, "DrawCommand.topBound");
  var rightBound = dart.privateName(_engine, "DrawCommand.rightBound");
  var bottomBound = dart.privateName(_engine, "DrawCommand.bottomBound");
  _engine.DrawCommand = class DrawCommand extends _engine.PaintCommand {
    get isClippedOut() {
      return this[isClippedOut];
    }
    set isClippedOut(value) {
      if (value == null) dart.nullFailed(I[300], 686, 8, "isClippedOut");
      this[isClippedOut] = value;
    }
    get leftBound() {
      return this[leftBound];
    }
    set leftBound(value) {
      if (value == null) dart.nullFailed(I[300], 690, 10, "leftBound");
      this[leftBound] = value;
    }
    get topBound() {
      return this[topBound];
    }
    set topBound(value) {
      if (value == null) dart.nullFailed(I[300], 694, 10, "topBound");
      this[topBound] = value;
    }
    get rightBound() {
      return this[rightBound];
    }
    set rightBound(value) {
      if (value == null) dart.nullFailed(I[300], 698, 10, "rightBound");
      this[rightBound] = value;
    }
    get bottomBound() {
      return this[bottomBound];
    }
    set bottomBound(value) {
      if (value == null) dart.nullFailed(I[300], 702, 10, "bottomBound");
      this[bottomBound] = value;
    }
    isInvisible(clipRect) {
      if (clipRect == null) dart.nullFailed(I[300], 705, 28, "clipRect");
      if (dart.test(this.isClippedOut)) {
        return true;
      }
      return dart.notNull(this.bottomBound) < dart.notNull(clipRect.top) || dart.notNull(this.topBound) > dart.notNull(clipRect.bottom) || dart.notNull(this.rightBound) < dart.notNull(clipRect.left) || dart.notNull(this.leftBound) > dart.notNull(clipRect.right);
    }
  };
  (_engine.DrawCommand.new = function() {
    this[isClippedOut] = false;
    this[leftBound] = -1 / 0;
    this[topBound] = -1 / 0;
    this[rightBound] = 1 / 0;
    this[bottomBound] = 1 / 0;
    dart.global.Object.getPrototypeOf(_engine.DrawCommand).new.call(this);
    ;
  }).prototype = _engine.DrawCommand.prototype;
  dart.addRtiResources(_engine.DrawCommand, ["_engine|DrawCommand"]);
  dart.setMethodSignature(_engine.DrawCommand, () => dart.global.Object.setPrototypeOf({isInvisible: T$8.RectTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DrawCommand))));
  dart.setLibraryUri(_engine.DrawCommand, I[220]);
  dart.setFieldSignature(_engine.DrawCommand, () => dart.global.Object.setPrototypeOf({
    isClippedOut: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    leftBound: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    topBound: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    rightBound: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    bottomBound: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DrawCommand))));
  _engine.PaintSave = class PaintSave extends _engine.PaintCommand {
    static ['_#new#tearOff']() {
      return new _engine.PaintSave.new();
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 723, 27, "canvas");
      canvas.save();
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "save()";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 730, 12, "() {\n      result = 'save()';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintSave.new = function() {
    dart.global.Object.getPrototypeOf(_engine.PaintSave).new.call(this);
    ;
  }).prototype = _engine.PaintSave.prototype;
  dart.addRtiResources(_engine.PaintSave, ["_engine|PaintSave"]);
  dart.setMethodSignature(_engine.PaintSave, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintSave))));
  dart.setLibraryUri(_engine.PaintSave, I[220]);
  dart.defineExtensionMethods(_engine.PaintSave, ['toString']);
  _engine.PaintRestore = class PaintRestore extends _engine.PaintCommand {
    static ['_#new#tearOff']() {
      return new _engine.PaintRestore.new();
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 742, 27, "canvas");
      canvas.restore();
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "restore()";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 749, 12, "() {\n      result = 'restore()';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintRestore.new = function() {
    dart.global.Object.getPrototypeOf(_engine.PaintRestore).new.call(this);
    ;
  }).prototype = _engine.PaintRestore.prototype;
  dart.addRtiResources(_engine.PaintRestore, ["_engine|PaintRestore"]);
  dart.setMethodSignature(_engine.PaintRestore, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintRestore))));
  dart.setLibraryUri(_engine.PaintRestore, I[220]);
  dart.defineExtensionMethods(_engine.PaintRestore, ['toString']);
  var dx$2 = dart.privateName(_engine, "PaintTranslate.dx");
  var dy$2 = dart.privateName(_engine, "PaintTranslate.dy");
  _engine.PaintTranslate = class PaintTranslate extends _engine.PaintCommand {
    get dx() {
      return this[dx$2];
    }
    set dx(value) {
      super.dx = value;
    }
    get dy() {
      return this[dy$2];
    }
    set dy(value) {
      super.dy = value;
    }
    static ['_#new#tearOff'](dx, dy) {
      if (dx == null) dart.nullFailed(I[300], 758, 23, "dx");
      if (dy == null) dart.nullFailed(I[300], 758, 32, "dy");
      return new _engine.PaintTranslate.new(dx, dy);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 764, 27, "canvas");
      canvas.translate(this.dx, this.dy);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "translate(" + dart.str(this.dx) + ", " + dart.str(this.dy) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 771, 12, "() {\n      result = 'translate($dx, $dy)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintTranslate.new = function(dx, dy) {
    if (dx == null) dart.nullFailed(I[300], 758, 23, "dx");
    if (dy == null) dart.nullFailed(I[300], 758, 32, "dy");
    this[dx$2] = dx;
    this[dy$2] = dy;
    dart.global.Object.getPrototypeOf(_engine.PaintTranslate).new.call(this);
    ;
  }).prototype = _engine.PaintTranslate.prototype;
  dart.addRtiResources(_engine.PaintTranslate, ["_engine|PaintTranslate"]);
  dart.setMethodSignature(_engine.PaintTranslate, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintTranslate))));
  dart.setLibraryUri(_engine.PaintTranslate, I[220]);
  dart.setFieldSignature(_engine.PaintTranslate, () => dart.global.Object.setPrototypeOf({
    dx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    dy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintTranslate))));
  dart.defineExtensionMethods(_engine.PaintTranslate, ['toString']);
  var sx$ = dart.privateName(_engine, "PaintScale.sx");
  var sy$ = dart.privateName(_engine, "PaintScale.sy");
  _engine.PaintScale = class PaintScale extends _engine.PaintCommand {
    get sx() {
      return this[sx$];
    }
    set sx(value) {
      super.sx = value;
    }
    get sy() {
      return this[sy$];
    }
    set sy(value) {
      super.sy = value;
    }
    static ['_#new#tearOff'](sx, sy) {
      if (sx == null) dart.nullFailed(I[300], 780, 19, "sx");
      if (sy == null) dart.nullFailed(I[300], 780, 28, "sy");
      return new _engine.PaintScale.new(sx, sy);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 786, 27, "canvas");
      canvas.scale(this.sx, this.sy);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "scale(" + dart.str(this.sx) + ", " + dart.str(this.sy) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 793, 12, "() {\n      result = 'scale($sx, $sy)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintScale.new = function(sx, sy) {
    if (sx == null) dart.nullFailed(I[300], 780, 19, "sx");
    if (sy == null) dart.nullFailed(I[300], 780, 28, "sy");
    this[sx$] = sx;
    this[sy$] = sy;
    dart.global.Object.getPrototypeOf(_engine.PaintScale).new.call(this);
    ;
  }).prototype = _engine.PaintScale.prototype;
  dart.addRtiResources(_engine.PaintScale, ["_engine|PaintScale"]);
  dart.setMethodSignature(_engine.PaintScale, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintScale))));
  dart.setLibraryUri(_engine.PaintScale, I[220]);
  dart.setFieldSignature(_engine.PaintScale, () => dart.global.Object.setPrototypeOf({
    sx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    sy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintScale))));
  dart.defineExtensionMethods(_engine.PaintScale, ['toString']);
  var radians$ = dart.privateName(_engine, "PaintRotate.radians");
  _engine.PaintRotate = class PaintRotate extends _engine.PaintCommand {
    get radians() {
      return this[radians$];
    }
    set radians(value) {
      super.radians = value;
    }
    static ['_#new#tearOff'](radians) {
      if (radians == null) dart.nullFailed(I[300], 802, 20, "radians");
      return new _engine.PaintRotate.new(radians);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 807, 27, "canvas");
      canvas.rotate(this.radians);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "rotate(" + dart.str(this.radians) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 814, 12, "() {\n      result = 'rotate($radians)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintRotate.new = function(radians) {
    if (radians == null) dart.nullFailed(I[300], 802, 20, "radians");
    this[radians$] = radians;
    dart.global.Object.getPrototypeOf(_engine.PaintRotate).new.call(this);
    ;
  }).prototype = _engine.PaintRotate.prototype;
  dart.addRtiResources(_engine.PaintRotate, ["_engine|PaintRotate"]);
  dart.setMethodSignature(_engine.PaintRotate, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintRotate))));
  dart.setLibraryUri(_engine.PaintRotate, I[220]);
  dart.setFieldSignature(_engine.PaintRotate, () => dart.global.Object.setPrototypeOf({radians: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintRotate))));
  dart.defineExtensionMethods(_engine.PaintRotate, ['toString']);
  var matrix4$3 = dart.privateName(_engine, "PaintTransform.matrix4");
  _engine.PaintTransform = class PaintTransform extends _engine.PaintCommand {
    get matrix4() {
      return this[matrix4$3];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    static ['_#new#tearOff'](matrix4) {
      if (matrix4 == null) dart.nullFailed(I[300], 823, 23, "matrix4");
      return new _engine.PaintTransform.new(matrix4);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 828, 27, "canvas");
      canvas.transform(this.matrix4);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "transform(Matrix4.fromFloat32List(Float32List.fromList(<double>[" + dart.str(this.matrix4[$join](", ")) + "])))";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 835, 12, "() {\n      result =\n          'transform(Matrix4.fromFloat32List(Float32List.fromList(<double>[${matrix4.join(', ')}])))';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintTransform.new = function(matrix4) {
    if (matrix4 == null) dart.nullFailed(I[300], 823, 23, "matrix4");
    this[matrix4$3] = matrix4;
    dart.global.Object.getPrototypeOf(_engine.PaintTransform).new.call(this);
    ;
  }).prototype = _engine.PaintTransform.prototype;
  dart.addRtiResources(_engine.PaintTransform, ["_engine|PaintTransform"]);
  dart.setMethodSignature(_engine.PaintTransform, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintTransform))));
  dart.setLibraryUri(_engine.PaintTransform, I[220]);
  dart.setFieldSignature(_engine.PaintTransform, () => dart.global.Object.setPrototypeOf({matrix4: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintTransform))));
  dart.defineExtensionMethods(_engine.PaintTransform, ['toString']);
  var sx$0 = dart.privateName(_engine, "PaintSkew.sx");
  var sy$0 = dart.privateName(_engine, "PaintSkew.sy");
  _engine.PaintSkew = class PaintSkew extends _engine.PaintCommand {
    get sx() {
      return this[sx$0];
    }
    set sx(value) {
      super.sx = value;
    }
    get sy() {
      return this[sy$0];
    }
    set sy(value) {
      super.sy = value;
    }
    static ['_#new#tearOff'](sx, sy) {
      if (sx == null) dart.nullFailed(I[300], 845, 18, "sx");
      if (sy == null) dart.nullFailed(I[300], 845, 27, "sy");
      return new _engine.PaintSkew.new(sx, sy);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 851, 27, "canvas");
      canvas.skew(this.sx, this.sy);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "skew(" + dart.str(this.sx) + ", " + dart.str(this.sy) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 858, 12, "() {\n      result = 'skew($sx, $sy)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintSkew.new = function(sx, sy) {
    if (sx == null) dart.nullFailed(I[300], 845, 18, "sx");
    if (sy == null) dart.nullFailed(I[300], 845, 27, "sy");
    this[sx$0] = sx;
    this[sy$0] = sy;
    dart.global.Object.getPrototypeOf(_engine.PaintSkew).new.call(this);
    ;
  }).prototype = _engine.PaintSkew.prototype;
  dart.addRtiResources(_engine.PaintSkew, ["_engine|PaintSkew"]);
  dart.setMethodSignature(_engine.PaintSkew, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintSkew))));
  dart.setLibraryUri(_engine.PaintSkew, I[220]);
  dart.setFieldSignature(_engine.PaintSkew, () => dart.global.Object.setPrototypeOf({
    sx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    sy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintSkew))));
  dart.defineExtensionMethods(_engine.PaintSkew, ['toString']);
  var rect$2 = dart.privateName(_engine, "PaintClipRect.rect");
  var clipOp$ = dart.privateName(_engine, "PaintClipRect.clipOp");
  _engine.PaintClipRect = class PaintClipRect extends _engine.DrawCommand {
    get rect() {
      return this[rect$2];
    }
    set rect(value) {
      super.rect = value;
    }
    get clipOp() {
      return this[clipOp$];
    }
    set clipOp(value) {
      super.clipOp = value;
    }
    static ['_#new#tearOff'](rect, clipOp) {
      if (rect == null) dart.nullFailed(I[300], 867, 22, "rect");
      if (clipOp == null) dart.nullFailed(I[300], 867, 33, "clipOp");
      return new _engine.PaintClipRect.new(rect, clipOp);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 873, 27, "canvas");
      canvas.clipRect(this.rect, this.clipOp);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "clipRect(" + dart.str(this.rect) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 880, 12, "() {\n      result = 'clipRect($rect)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintClipRect.new = function(rect, clipOp) {
    if (rect == null) dart.nullFailed(I[300], 867, 22, "rect");
    if (clipOp == null) dart.nullFailed(I[300], 867, 33, "clipOp");
    this[rect$2] = rect;
    this[clipOp$] = clipOp;
    dart.global.Object.getPrototypeOf(_engine.PaintClipRect).new.call(this);
    ;
  }).prototype = _engine.PaintClipRect.prototype;
  dart.addRtiResources(_engine.PaintClipRect, ["_engine|PaintClipRect"]);
  dart.setMethodSignature(_engine.PaintClipRect, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintClipRect))));
  dart.setLibraryUri(_engine.PaintClipRect, I[220]);
  dart.setFieldSignature(_engine.PaintClipRect, () => dart.global.Object.setPrototypeOf({
    rect: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    clipOp: {type: T$8.ClipOp(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintClipRect))));
  dart.defineExtensionMethods(_engine.PaintClipRect, ['toString']);
  var rrect$2 = dart.privateName(_engine, "PaintClipRRect.rrect");
  _engine.PaintClipRRect = class PaintClipRRect extends _engine.DrawCommand {
    get rrect() {
      return this[rrect$2];
    }
    set rrect(value) {
      super.rrect = value;
    }
    static ['_#new#tearOff'](rrect) {
      if (rrect == null) dart.nullFailed(I[300], 889, 23, "rrect");
      return new _engine.PaintClipRRect.new(rrect);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 894, 27, "canvas");
      canvas.clipRRect(this.rrect);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "clipRRect(" + dart.str(this.rrect) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 901, 12, "() {\n      result = 'clipRRect($rrect)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintClipRRect.new = function(rrect) {
    if (rrect == null) dart.nullFailed(I[300], 889, 23, "rrect");
    this[rrect$2] = rrect;
    dart.global.Object.getPrototypeOf(_engine.PaintClipRRect).new.call(this);
    ;
  }).prototype = _engine.PaintClipRRect.prototype;
  dart.addRtiResources(_engine.PaintClipRRect, ["_engine|PaintClipRRect"]);
  dart.setMethodSignature(_engine.PaintClipRRect, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintClipRRect))));
  dart.setLibraryUri(_engine.PaintClipRRect, I[220]);
  dart.setFieldSignature(_engine.PaintClipRRect, () => dart.global.Object.setPrototypeOf({rrect: {type: T$8.RRect(), isConst: false, isFinal: true, libraryUri: I[198]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintClipRRect))));
  dart.defineExtensionMethods(_engine.PaintClipRRect, ['toString']);
  var path$3 = dart.privateName(_engine, "PaintClipPath.path");
  _engine.PaintClipPath = class PaintClipPath extends _engine.DrawCommand {
    get path() {
      return this[path$3];
    }
    set path(value) {
      super.path = value;
    }
    static ['_#new#tearOff'](path) {
      if (path == null) dart.nullFailed(I[300], 910, 22, "path");
      return new _engine.PaintClipPath.new(path);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 915, 27, "canvas");
      canvas.clipPath(this.path);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "clipPath(" + dart.str(this.path) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 922, 12, "() {\n      result = 'clipPath($path)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintClipPath.new = function(path) {
    if (path == null) dart.nullFailed(I[300], 910, 22, "path");
    this[path$3] = path;
    dart.global.Object.getPrototypeOf(_engine.PaintClipPath).new.call(this);
    ;
  }).prototype = _engine.PaintClipPath.prototype;
  dart.addRtiResources(_engine.PaintClipPath, ["_engine|PaintClipPath"]);
  dart.setMethodSignature(_engine.PaintClipPath, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintClipPath))));
  dart.setLibraryUri(_engine.PaintClipPath, I[220]);
  dart.setFieldSignature(_engine.PaintClipPath, () => dart.global.Object.setPrototypeOf({path: {type: T$9.SurfacePath(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintClipPath))));
  dart.defineExtensionMethods(_engine.PaintClipPath, ['toString']);
  var color$3 = dart.privateName(_engine, "PaintDrawColor.color");
  var blendMode$3 = dart.privateName(_engine, "PaintDrawColor.blendMode");
  _engine.PaintDrawColor = class PaintDrawColor extends _engine.DrawCommand {
    get color() {
      return this[color$3];
    }
    set color(value) {
      super.color = value;
    }
    get blendMode() {
      return this[blendMode$3];
    }
    set blendMode(value) {
      super.blendMode = value;
    }
    static ['_#new#tearOff'](color, blendMode) {
      if (color == null) dart.nullFailed(I[300], 931, 23, "color");
      if (blendMode == null) dart.nullFailed(I[300], 931, 35, "blendMode");
      return new _engine.PaintDrawColor.new(color, blendMode);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 937, 27, "canvas");
      canvas.drawColor(this.color, this.blendMode);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawColor(" + dart.str(this.color) + ", " + dart.str(this.blendMode) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 944, 12, "() {\n      result = 'drawColor($color, $blendMode)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawColor.new = function(color, blendMode) {
    if (color == null) dart.nullFailed(I[300], 931, 23, "color");
    if (blendMode == null) dart.nullFailed(I[300], 931, 35, "blendMode");
    this[color$3] = color;
    this[blendMode$3] = blendMode;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawColor).new.call(this);
    ;
  }).prototype = _engine.PaintDrawColor.prototype;
  dart.addRtiResources(_engine.PaintDrawColor, ["_engine|PaintDrawColor"]);
  dart.setMethodSignature(_engine.PaintDrawColor, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawColor))));
  dart.setLibraryUri(_engine.PaintDrawColor, I[220]);
  dart.setFieldSignature(_engine.PaintDrawColor, () => dart.global.Object.setPrototypeOf({
    color: {type: T$8.Color(), isConst: false, isFinal: true, libraryUri: I[198]},
    blendMode: {type: T$8.BlendMode(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawColor))));
  dart.defineExtensionMethods(_engine.PaintDrawColor, ['toString']);
  var p1$ = dart.privateName(_engine, "PaintDrawLine.p1");
  var p2$ = dart.privateName(_engine, "PaintDrawLine.p2");
  var paint$ = dart.privateName(_engine, "PaintDrawLine.paint");
  _engine.PaintDrawLine = class PaintDrawLine extends _engine.DrawCommand {
    get p1() {
      return this[p1$];
    }
    set p1(value) {
      super.p1 = value;
    }
    get p2() {
      return this[p2$];
    }
    set p2(value) {
      super.p2 = value;
    }
    get paint() {
      return this[paint$];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](p1, p2, paint) {
      if (p1 == null) dart.nullFailed(I[300], 953, 22, "p1");
      if (p2 == null) dart.nullFailed(I[300], 953, 31, "p2");
      if (paint == null) dart.nullFailed(I[300], 953, 40, "paint");
      return new _engine.PaintDrawLine.new(p1, p2, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 960, 27, "canvas");
      canvas.drawLine(this.p1, this.p2, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawLine(" + dart.str(this.p1) + ", " + dart.str(this.p2) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 967, 12, "() {\n      result = 'drawLine($p1, $p2, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawLine.new = function(p1, p2, paint) {
    if (p1 == null) dart.nullFailed(I[300], 953, 22, "p1");
    if (p2 == null) dart.nullFailed(I[300], 953, 31, "p2");
    if (paint == null) dart.nullFailed(I[300], 953, 40, "paint");
    this[p1$] = p1;
    this[p2$] = p2;
    this[paint$] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawLine).new.call(this);
    ;
  }).prototype = _engine.PaintDrawLine.prototype;
  dart.addRtiResources(_engine.PaintDrawLine, ["_engine|PaintDrawLine"]);
  dart.setMethodSignature(_engine.PaintDrawLine, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawLine))));
  dart.setLibraryUri(_engine.PaintDrawLine, I[220]);
  dart.setFieldSignature(_engine.PaintDrawLine, () => dart.global.Object.setPrototypeOf({
    p1: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    p2: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawLine))));
  dart.defineExtensionMethods(_engine.PaintDrawLine, ['toString']);
  var paint$0 = dart.privateName(_engine, "PaintDrawPaint.paint");
  _engine.PaintDrawPaint = class PaintDrawPaint extends _engine.DrawCommand {
    get paint() {
      return this[paint$0];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](paint) {
      if (paint == null) dart.nullFailed(I[300], 976, 23, "paint");
      return new _engine.PaintDrawPaint.new(paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 981, 27, "canvas");
      canvas.drawPaint(this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawPaint(" + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 988, 12, "() {\n      result = 'drawPaint($paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawPaint.new = function(paint) {
    if (paint == null) dart.nullFailed(I[300], 976, 23, "paint");
    this[paint$0] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawPaint).new.call(this);
    ;
  }).prototype = _engine.PaintDrawPaint.prototype;
  dart.addRtiResources(_engine.PaintDrawPaint, ["_engine|PaintDrawPaint"]);
  dart.setMethodSignature(_engine.PaintDrawPaint, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawPaint))));
  dart.setLibraryUri(_engine.PaintDrawPaint, I[220]);
  dart.setFieldSignature(_engine.PaintDrawPaint, () => dart.global.Object.setPrototypeOf({paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawPaint))));
  dart.defineExtensionMethods(_engine.PaintDrawPaint, ['toString']);
  var vertices$ = dart.privateName(_engine, "PaintDrawVertices.vertices");
  var blendMode$4 = dart.privateName(_engine, "PaintDrawVertices.blendMode");
  var paint$1 = dart.privateName(_engine, "PaintDrawVertices.paint");
  _engine.PaintDrawVertices = class PaintDrawVertices extends _engine.DrawCommand {
    get vertices() {
      return this[vertices$];
    }
    set vertices(value) {
      super.vertices = value;
    }
    get blendMode() {
      return this[blendMode$4];
    }
    set blendMode(value) {
      super.blendMode = value;
    }
    get paint() {
      return this[paint$1];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](vertices, blendMode, paint) {
      if (vertices == null) dart.nullFailed(I[300], 997, 26, "vertices");
      if (blendMode == null) dart.nullFailed(I[300], 997, 41, "blendMode");
      if (paint == null) dart.nullFailed(I[300], 997, 57, "paint");
      return new _engine.PaintDrawVertices.new(vertices, blendMode, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1004, 27, "canvas");
      canvas.drawVertices(T$10.SurfaceVertices()[_as](this.vertices), this.blendMode, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawVertices(" + dart.str(this.vertices) + ", " + dart.str(this.blendMode) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1011, 12, "() {\n      result = 'drawVertices($vertices, $blendMode, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawVertices.new = function(vertices, blendMode, paint) {
    if (vertices == null) dart.nullFailed(I[300], 997, 26, "vertices");
    if (blendMode == null) dart.nullFailed(I[300], 997, 41, "blendMode");
    if (paint == null) dart.nullFailed(I[300], 997, 57, "paint");
    this[vertices$] = vertices;
    this[blendMode$4] = blendMode;
    this[paint$1] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawVertices).new.call(this);
    ;
  }).prototype = _engine.PaintDrawVertices.prototype;
  dart.addRtiResources(_engine.PaintDrawVertices, ["_engine|PaintDrawVertices"]);
  dart.setMethodSignature(_engine.PaintDrawVertices, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawVertices))));
  dart.setLibraryUri(_engine.PaintDrawVertices, I[220]);
  dart.setFieldSignature(_engine.PaintDrawVertices, () => dart.global.Object.setPrototypeOf({
    vertices: {type: T$11.Vertices(), isConst: false, isFinal: true, libraryUri: I[198]},
    blendMode: {type: T$8.BlendMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawVertices))));
  dart.defineExtensionMethods(_engine.PaintDrawVertices, ['toString']);
  var points$ = dart.privateName(_engine, "PaintDrawPoints.points");
  var pointMode$ = dart.privateName(_engine, "PaintDrawPoints.pointMode");
  var paint$2 = dart.privateName(_engine, "PaintDrawPoints.paint");
  _engine.PaintDrawPoints = class PaintDrawPoints extends _engine.DrawCommand {
    get points() {
      return this[points$];
    }
    set points(value) {
      super.points = value;
    }
    get pointMode() {
      return this[pointMode$];
    }
    set pointMode(value) {
      super.pointMode = value;
    }
    get paint() {
      return this[paint$2];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](pointMode, points, paint) {
      if (pointMode == null) dart.nullFailed(I[300], 1020, 24, "pointMode");
      if (points == null) dart.nullFailed(I[300], 1020, 40, "points");
      if (paint == null) dart.nullFailed(I[300], 1020, 53, "paint");
      return new _engine.PaintDrawPoints.new(pointMode, points, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1027, 27, "canvas");
      canvas.drawPoints(this.pointMode, this.points, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawPoints(" + dart.str(this.pointMode) + ", " + dart.str(this.points) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1034, 12, "() {\n      result = 'drawPoints($pointMode, $points, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawPoints.new = function(pointMode, points, paint) {
    if (pointMode == null) dart.nullFailed(I[300], 1020, 24, "pointMode");
    if (points == null) dart.nullFailed(I[300], 1020, 40, "points");
    if (paint == null) dart.nullFailed(I[300], 1020, 53, "paint");
    this[pointMode$] = pointMode;
    this[points$] = points;
    this[paint$2] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawPoints).new.call(this);
    ;
  }).prototype = _engine.PaintDrawPoints.prototype;
  dart.addRtiResources(_engine.PaintDrawPoints, ["_engine|PaintDrawPoints"]);
  dart.setMethodSignature(_engine.PaintDrawPoints, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawPoints))));
  dart.setLibraryUri(_engine.PaintDrawPoints, I[220]);
  dart.setFieldSignature(_engine.PaintDrawPoints, () => dart.global.Object.setPrototypeOf({
    points: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    pointMode: {type: T$8.PointMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawPoints))));
  dart.defineExtensionMethods(_engine.PaintDrawPoints, ['toString']);
  var rect$3 = dart.privateName(_engine, "PaintDrawRect.rect");
  var paint$3 = dart.privateName(_engine, "PaintDrawRect.paint");
  _engine.PaintDrawRect = class PaintDrawRect extends _engine.DrawCommand {
    get rect() {
      return this[rect$3];
    }
    set rect(value) {
      super.rect = value;
    }
    get paint() {
      return this[paint$3];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](rect, paint) {
      if (rect == null) dart.nullFailed(I[300], 1043, 22, "rect");
      if (paint == null) dart.nullFailed(I[300], 1043, 33, "paint");
      return new _engine.PaintDrawRect.new(rect, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1049, 27, "canvas");
      canvas.drawRect(this.rect, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawRect(" + dart.str(this.rect) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1056, 12, "() {\n      result = 'drawRect($rect, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawRect.new = function(rect, paint) {
    if (rect == null) dart.nullFailed(I[300], 1043, 22, "rect");
    if (paint == null) dart.nullFailed(I[300], 1043, 33, "paint");
    this[rect$3] = rect;
    this[paint$3] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawRect).new.call(this);
    ;
  }).prototype = _engine.PaintDrawRect.prototype;
  dart.addRtiResources(_engine.PaintDrawRect, ["_engine|PaintDrawRect"]);
  dart.setMethodSignature(_engine.PaintDrawRect, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawRect))));
  dart.setLibraryUri(_engine.PaintDrawRect, I[220]);
  dart.setFieldSignature(_engine.PaintDrawRect, () => dart.global.Object.setPrototypeOf({
    rect: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawRect))));
  dart.defineExtensionMethods(_engine.PaintDrawRect, ['toString']);
  var rrect$3 = dart.privateName(_engine, "PaintDrawRRect.rrect");
  var paint$4 = dart.privateName(_engine, "PaintDrawRRect.paint");
  _engine.PaintDrawRRect = class PaintDrawRRect extends _engine.DrawCommand {
    get rrect() {
      return this[rrect$3];
    }
    set rrect(value) {
      super.rrect = value;
    }
    get paint() {
      return this[paint$4];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](rrect, paint) {
      if (rrect == null) dart.nullFailed(I[300], 1065, 23, "rrect");
      if (paint == null) dart.nullFailed(I[300], 1065, 35, "paint");
      return new _engine.PaintDrawRRect.new(rrect, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1071, 27, "canvas");
      canvas.drawRRect(this.rrect, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawRRect(" + dart.str(this.rrect) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1078, 12, "() {\n      result = 'drawRRect($rrect, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawRRect.new = function(rrect, paint) {
    if (rrect == null) dart.nullFailed(I[300], 1065, 23, "rrect");
    if (paint == null) dart.nullFailed(I[300], 1065, 35, "paint");
    this[rrect$3] = rrect;
    this[paint$4] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawRRect).new.call(this);
    ;
  }).prototype = _engine.PaintDrawRRect.prototype;
  dart.addRtiResources(_engine.PaintDrawRRect, ["_engine|PaintDrawRRect"]);
  dart.setMethodSignature(_engine.PaintDrawRRect, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawRRect))));
  dart.setLibraryUri(_engine.PaintDrawRRect, I[220]);
  dart.setFieldSignature(_engine.PaintDrawRRect, () => dart.global.Object.setPrototypeOf({
    rrect: {type: T$8.RRect(), isConst: false, isFinal: true, libraryUri: I[198]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawRRect))));
  dart.defineExtensionMethods(_engine.PaintDrawRRect, ['toString']);
  var outer$0 = dart.privateName(_engine, "PaintDrawDRRect.outer");
  var inner$0 = dart.privateName(_engine, "PaintDrawDRRect.inner");
  var paint$5 = dart.privateName(_engine, "PaintDrawDRRect.paint");
  var path = dart.privateName(_engine, "PaintDrawDRRect.path");
  _engine.PaintDrawDRRect = class PaintDrawDRRect extends _engine.DrawCommand {
    get outer() {
      return this[outer$0];
    }
    set outer(value) {
      super.outer = value;
    }
    get inner() {
      return this[inner$0];
    }
    set inner(value) {
      super.inner = value;
    }
    get paint() {
      return this[paint$5];
    }
    set paint(value) {
      super.paint = value;
    }
    get path() {
      return this[path];
    }
    set path(value) {
      this[path] = value;
    }
    static ['_#new#tearOff'](outer, inner, paint) {
      if (outer == null) dart.nullFailed(I[300], 1087, 24, "outer");
      if (inner == null) dart.nullFailed(I[300], 1087, 36, "inner");
      if (paint == null) dart.nullFailed(I[300], 1087, 48, "paint");
      return new _engine.PaintDrawDRRect.new(outer, inner, paint);
    }
    apply(canvas) {
      let t$36549;
      if (canvas == null) dart.nullFailed(I[300], 1101, 27, "canvas");
      t$36549 = this.paint;
      t$36549.style == null ? t$36549.style = ui.PaintingStyle.fill : null;
      canvas.drawPath(dart.nullCheck(this.path), this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawDRRect(" + dart.str(this.outer) + ", " + dart.str(this.inner) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1109, 12, "() {\n      result = 'drawDRRect($outer, $inner, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawDRRect.new = function(outer, inner, paint) {
    let t$36549;
    if (outer == null) dart.nullFailed(I[300], 1087, 24, "outer");
    if (inner == null) dart.nullFailed(I[300], 1087, 36, "inner");
    if (paint == null) dart.nullFailed(I[300], 1087, 48, "paint");
    this[path] = null;
    this[outer$0] = outer;
    this[inner$0] = inner;
    this[paint$5] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawDRRect).new.call(this);
    this.path = (t$36549 = ui.Path.new(), (() => {
      t$36549.fillType = ui.PathFillType.evenOdd;
      t$36549.addRRect(this.outer);
      t$36549.addRRect(this.inner);
      t$36549.close();
      return t$36549;
    })());
  }).prototype = _engine.PaintDrawDRRect.prototype;
  dart.addRtiResources(_engine.PaintDrawDRRect, ["_engine|PaintDrawDRRect"]);
  dart.setMethodSignature(_engine.PaintDrawDRRect, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawDRRect))));
  dart.setLibraryUri(_engine.PaintDrawDRRect, I[220]);
  dart.setFieldSignature(_engine.PaintDrawDRRect, () => dart.global.Object.setPrototypeOf({
    outer: {type: T$8.RRect(), isConst: false, isFinal: true, libraryUri: I[198]},
    inner: {type: T$8.RRect(), isConst: false, isFinal: true, libraryUri: I[198]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]},
    path: {type: T$9.PathN(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawDRRect))));
  dart.defineExtensionMethods(_engine.PaintDrawDRRect, ['toString']);
  var rect$4 = dart.privateName(_engine, "PaintDrawOval.rect");
  var paint$6 = dart.privateName(_engine, "PaintDrawOval.paint");
  _engine.PaintDrawOval = class PaintDrawOval extends _engine.DrawCommand {
    get rect() {
      return this[rect$4];
    }
    set rect(value) {
      super.rect = value;
    }
    get paint() {
      return this[paint$6];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](rect, paint) {
      if (rect == null) dart.nullFailed(I[300], 1118, 22, "rect");
      if (paint == null) dart.nullFailed(I[300], 1118, 33, "paint");
      return new _engine.PaintDrawOval.new(rect, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1124, 27, "canvas");
      canvas.drawOval(this.rect, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawOval(" + dart.str(this.rect) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1131, 12, "() {\n      result = 'drawOval($rect, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawOval.new = function(rect, paint) {
    if (rect == null) dart.nullFailed(I[300], 1118, 22, "rect");
    if (paint == null) dart.nullFailed(I[300], 1118, 33, "paint");
    this[rect$4] = rect;
    this[paint$6] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawOval).new.call(this);
    ;
  }).prototype = _engine.PaintDrawOval.prototype;
  dart.addRtiResources(_engine.PaintDrawOval, ["_engine|PaintDrawOval"]);
  dart.setMethodSignature(_engine.PaintDrawOval, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawOval))));
  dart.setLibraryUri(_engine.PaintDrawOval, I[220]);
  dart.setFieldSignature(_engine.PaintDrawOval, () => dart.global.Object.setPrototypeOf({
    rect: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawOval))));
  dart.defineExtensionMethods(_engine.PaintDrawOval, ['toString']);
  var c$ = dart.privateName(_engine, "PaintDrawCircle.c");
  var radius$1 = dart.privateName(_engine, "PaintDrawCircle.radius");
  var paint$7 = dart.privateName(_engine, "PaintDrawCircle.paint");
  _engine.PaintDrawCircle = class PaintDrawCircle extends _engine.DrawCommand {
    get c() {
      return this[c$];
    }
    set c(value) {
      super.c = value;
    }
    get radius() {
      return this[radius$1];
    }
    set radius(value) {
      super.radius = value;
    }
    get paint() {
      return this[paint$7];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](c, radius, paint) {
      if (c == null) dart.nullFailed(I[300], 1140, 24, "c");
      if (radius == null) dart.nullFailed(I[300], 1140, 32, "radius");
      if (paint == null) dart.nullFailed(I[300], 1140, 45, "paint");
      return new _engine.PaintDrawCircle.new(c, radius, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1147, 27, "canvas");
      canvas.drawCircle(this.c, this.radius, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawCircle(" + dart.str(this.c) + ", " + dart.str(this.radius) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1154, 12, "() {\n      result = 'drawCircle($c, $radius, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawCircle.new = function(c, radius, paint) {
    if (c == null) dart.nullFailed(I[300], 1140, 24, "c");
    if (radius == null) dart.nullFailed(I[300], 1140, 32, "radius");
    if (paint == null) dart.nullFailed(I[300], 1140, 45, "paint");
    this[c$] = c;
    this[radius$1] = radius;
    this[paint$7] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawCircle).new.call(this);
    ;
  }).prototype = _engine.PaintDrawCircle.prototype;
  dart.addRtiResources(_engine.PaintDrawCircle, ["_engine|PaintDrawCircle"]);
  dart.setMethodSignature(_engine.PaintDrawCircle, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawCircle))));
  dart.setLibraryUri(_engine.PaintDrawCircle, I[220]);
  dart.setFieldSignature(_engine.PaintDrawCircle, () => dart.global.Object.setPrototypeOf({
    c: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    radius: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawCircle))));
  dart.defineExtensionMethods(_engine.PaintDrawCircle, ['toString']);
  var path$4 = dart.privateName(_engine, "PaintDrawPath.path");
  var paint$8 = dart.privateName(_engine, "PaintDrawPath.paint");
  _engine.PaintDrawPath = class PaintDrawPath extends _engine.DrawCommand {
    get path() {
      return this[path$4];
    }
    set path(value) {
      super.path = value;
    }
    get paint() {
      return this[paint$8];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](path, paint) {
      if (path == null) dart.nullFailed(I[300], 1163, 22, "path");
      if (paint == null) dart.nullFailed(I[300], 1163, 33, "paint");
      return new _engine.PaintDrawPath.new(path, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1169, 27, "canvas");
      canvas.drawPath(this.path, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawPath(" + dart.str(this.path) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1176, 12, "() {\n      result = 'drawPath($path, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawPath.new = function(path, paint) {
    if (path == null) dart.nullFailed(I[300], 1163, 22, "path");
    if (paint == null) dart.nullFailed(I[300], 1163, 33, "paint");
    this[path$4] = path;
    this[paint$8] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawPath).new.call(this);
    ;
  }).prototype = _engine.PaintDrawPath.prototype;
  dart.addRtiResources(_engine.PaintDrawPath, ["_engine|PaintDrawPath"]);
  dart.setMethodSignature(_engine.PaintDrawPath, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawPath))));
  dart.setLibraryUri(_engine.PaintDrawPath, I[220]);
  dart.setFieldSignature(_engine.PaintDrawPath, () => dart.global.Object.setPrototypeOf({
    path: {type: T$9.SurfacePath(), isConst: false, isFinal: true, libraryUri: I[220]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawPath))));
  dart.defineExtensionMethods(_engine.PaintDrawPath, ['toString']);
  var path$5 = dart.privateName(_engine, "PaintDrawShadow.path");
  var color$4 = dart.privateName(_engine, "PaintDrawShadow.color");
  var elevation$ = dart.privateName(_engine, "PaintDrawShadow.elevation");
  var transparentOccluder$ = dart.privateName(_engine, "PaintDrawShadow.transparentOccluder");
  _engine.PaintDrawShadow = class PaintDrawShadow extends _engine.DrawCommand {
    get path() {
      return this[path$5];
    }
    set path(value) {
      super.path = value;
    }
    get color() {
      return this[color$4];
    }
    set color(value) {
      super.color = value;
    }
    get elevation() {
      return this[elevation$];
    }
    set elevation(value) {
      super.elevation = value;
    }
    get transparentOccluder() {
      return this[transparentOccluder$];
    }
    set transparentOccluder(value) {
      super.transparentOccluder = value;
    }
    static ['_#new#tearOff'](path, color, elevation, transparentOccluder) {
      if (path == null) dart.nullFailed(I[300], 1186, 12, "path");
      if (color == null) dart.nullFailed(I[300], 1186, 23, "color");
      if (elevation == null) dart.nullFailed(I[300], 1186, 35, "elevation");
      if (transparentOccluder == null) dart.nullFailed(I[300], 1186, 51, "transparentOccluder");
      return new _engine.PaintDrawShadow.new(path, color, elevation, transparentOccluder);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1194, 27, "canvas");
      canvas.drawShadow(this.path, this.color, this.elevation, this.transparentOccluder);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawShadow(" + dart.str(this.path) + ", " + dart.str(this.color) + ", " + dart.str(this.elevation) + ", " + dart.str(this.transparentOccluder) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1201, 12, "() {\n      result = 'drawShadow($path, $color, $elevation, $transparentOccluder)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawShadow.new = function(path, color, elevation, transparentOccluder) {
    if (path == null) dart.nullFailed(I[300], 1186, 12, "path");
    if (color == null) dart.nullFailed(I[300], 1186, 23, "color");
    if (elevation == null) dart.nullFailed(I[300], 1186, 35, "elevation");
    if (transparentOccluder == null) dart.nullFailed(I[300], 1186, 51, "transparentOccluder");
    this[path$5] = path;
    this[color$4] = color;
    this[elevation$] = elevation;
    this[transparentOccluder$] = transparentOccluder;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawShadow).new.call(this);
    ;
  }).prototype = _engine.PaintDrawShadow.prototype;
  dart.addRtiResources(_engine.PaintDrawShadow, ["_engine|PaintDrawShadow"]);
  dart.setMethodSignature(_engine.PaintDrawShadow, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawShadow))));
  dart.setLibraryUri(_engine.PaintDrawShadow, I[220]);
  dart.setFieldSignature(_engine.PaintDrawShadow, () => dart.global.Object.setPrototypeOf({
    path: {type: T$9.SurfacePath(), isConst: false, isFinal: true, libraryUri: I[220]},
    color: {type: T$8.Color(), isConst: false, isFinal: true, libraryUri: I[198]},
    elevation: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    transparentOccluder: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawShadow))));
  dart.defineExtensionMethods(_engine.PaintDrawShadow, ['toString']);
  var image$ = dart.privateName(_engine, "PaintDrawImage.image");
  var offset$7 = dart.privateName(_engine, "PaintDrawImage.offset");
  var paint$9 = dart.privateName(_engine, "PaintDrawImage.paint");
  _engine.PaintDrawImage = class PaintDrawImage extends _engine.DrawCommand {
    get image() {
      return this[image$];
    }
    set image(value) {
      super.image = value;
    }
    get offset() {
      return this[offset$7];
    }
    set offset(value) {
      super.offset = value;
    }
    get paint() {
      return this[paint$9];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](image, offset, paint) {
      if (image == null) dart.nullFailed(I[300], 1210, 23, "image");
      if (offset == null) dart.nullFailed(I[300], 1210, 35, "offset");
      if (paint == null) dart.nullFailed(I[300], 1210, 48, "paint");
      return new _engine.PaintDrawImage.new(image, offset, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1217, 27, "canvas");
      canvas.drawImage(this.image, this.offset, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawImage(" + dart.str(this.image) + ", " + dart.str(this.offset) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1224, 12, "() {\n      result = 'drawImage($image, $offset, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawImage.new = function(image, offset, paint) {
    if (image == null) dart.nullFailed(I[300], 1210, 23, "image");
    if (offset == null) dart.nullFailed(I[300], 1210, 35, "offset");
    if (paint == null) dart.nullFailed(I[300], 1210, 48, "paint");
    this[image$] = image;
    this[offset$7] = offset;
    this[paint$9] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawImage).new.call(this);
    ;
  }).prototype = _engine.PaintDrawImage.prototype;
  dart.addRtiResources(_engine.PaintDrawImage, ["_engine|PaintDrawImage"]);
  dart.setMethodSignature(_engine.PaintDrawImage, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawImage))));
  dart.setLibraryUri(_engine.PaintDrawImage, I[220]);
  dart.setFieldSignature(_engine.PaintDrawImage, () => dart.global.Object.setPrototypeOf({
    image: {type: T$10.Image(), isConst: false, isFinal: true, libraryUri: I[198]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawImage))));
  dart.defineExtensionMethods(_engine.PaintDrawImage, ['toString']);
  var image$0 = dart.privateName(_engine, "PaintDrawImageRect.image");
  var src$1 = dart.privateName(_engine, "PaintDrawImageRect.src");
  var dst$ = dart.privateName(_engine, "PaintDrawImageRect.dst");
  var paint$10 = dart.privateName(_engine, "PaintDrawImageRect.paint");
  _engine.PaintDrawImageRect = class PaintDrawImageRect extends _engine.DrawCommand {
    get image() {
      return this[image$0];
    }
    set image(value) {
      super.image = value;
    }
    get src() {
      return this[src$1];
    }
    set src(value) {
      super.src = value;
    }
    get dst() {
      return this[dst$];
    }
    set dst(value) {
      super.dst = value;
    }
    get paint() {
      return this[paint$10];
    }
    set paint(value) {
      super.paint = value;
    }
    static ['_#new#tearOff'](image, src, dst, paint) {
      if (image == null) dart.nullFailed(I[300], 1233, 27, "image");
      if (src == null) dart.nullFailed(I[300], 1233, 39, "src");
      if (dst == null) dart.nullFailed(I[300], 1233, 49, "dst");
      if (paint == null) dart.nullFailed(I[300], 1233, 59, "paint");
      return new _engine.PaintDrawImageRect.new(image, src, dst, paint);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1241, 27, "canvas");
      canvas.drawImageRect(this.image, this.src, this.dst, this.paint);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "drawImageRect(" + dart.str(this.image) + ", " + dart.str(this.src) + ", " + dart.str(this.dst) + ", " + dart.str(this.paint) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1248, 12, "() {\n      result = 'drawImageRect($image, $src, $dst, $paint)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawImageRect.new = function(image, src, dst, paint) {
    if (image == null) dart.nullFailed(I[300], 1233, 27, "image");
    if (src == null) dart.nullFailed(I[300], 1233, 39, "src");
    if (dst == null) dart.nullFailed(I[300], 1233, 49, "dst");
    if (paint == null) dart.nullFailed(I[300], 1233, 59, "paint");
    this[image$0] = image;
    this[src$1] = src;
    this[dst$] = dst;
    this[paint$10] = paint;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawImageRect).new.call(this);
    ;
  }).prototype = _engine.PaintDrawImageRect.prototype;
  dart.addRtiResources(_engine.PaintDrawImageRect, ["_engine|PaintDrawImageRect"]);
  dart.setMethodSignature(_engine.PaintDrawImageRect, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawImageRect))));
  dart.setLibraryUri(_engine.PaintDrawImageRect, I[220]);
  dart.setFieldSignature(_engine.PaintDrawImageRect, () => dart.global.Object.setPrototypeOf({
    image: {type: T$10.Image(), isConst: false, isFinal: true, libraryUri: I[198]},
    src: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    dst: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    paint: {type: T$10.SurfacePaintData(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawImageRect))));
  dart.defineExtensionMethods(_engine.PaintDrawImageRect, ['toString']);
  var paragraph$ = dart.privateName(_engine, "PaintDrawParagraph.paragraph");
  var offset$8 = dart.privateName(_engine, "PaintDrawParagraph.offset");
  _engine.PaintDrawParagraph = class PaintDrawParagraph extends _engine.DrawCommand {
    get paragraph() {
      return this[paragraph$];
    }
    set paragraph(value) {
      super.paragraph = value;
    }
    get offset() {
      return this[offset$8];
    }
    set offset(value) {
      super.offset = value;
    }
    static ['_#new#tearOff'](paragraph, offset) {
      if (paragraph == null) dart.nullFailed(I[300], 1257, 27, "paragraph");
      if (offset == null) dart.nullFailed(I[300], 1257, 43, "offset");
      return new _engine.PaintDrawParagraph.new(paragraph, offset);
    }
    apply(canvas) {
      if (canvas == null) dart.nullFailed(I[300], 1263, 27, "canvas");
      canvas.drawParagraph(this.paragraph, this.offset);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "DrawParagraph(" + dart.str(this.paragraph.plainText) + ", " + dart.str(this.offset) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1270, 12, "() {\n      result = 'DrawParagraph(${paragraph.plainText}, $offset)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PaintDrawParagraph.new = function(paragraph, offset) {
    if (paragraph == null) dart.nullFailed(I[300], 1257, 27, "paragraph");
    if (offset == null) dart.nullFailed(I[300], 1257, 43, "offset");
    this[paragraph$] = paragraph;
    this[offset$8] = offset;
    dart.global.Object.getPrototypeOf(_engine.PaintDrawParagraph).new.call(this);
    ;
  }).prototype = _engine.PaintDrawParagraph.prototype;
  dart.addRtiResources(_engine.PaintDrawParagraph, ["_engine|PaintDrawParagraph"]);
  dart.setMethodSignature(_engine.PaintDrawParagraph, () => dart.global.Object.setPrototypeOf({apply: T$11.EngineCanvasTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PaintDrawParagraph))));
  dart.setLibraryUri(_engine.PaintDrawParagraph, I[220]);
  dart.setFieldSignature(_engine.PaintDrawParagraph, () => dart.global.Object.setPrototypeOf({
    paragraph: {type: T$10.CanvasParagraph(), isConst: false, isFinal: true, libraryUri: I[220]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PaintDrawParagraph))));
  dart.defineExtensionMethods(_engine.PaintDrawParagraph, ['toString']);
  var startX$ = dart.privateName(_engine, "Subpath.startX");
  var startY$ = dart.privateName(_engine, "Subpath.startY");
  var currentX = dart.privateName(_engine, "Subpath.currentX");
  var currentY = dart.privateName(_engine, "Subpath.currentY");
  var commands = dart.privateName(_engine, "Subpath.commands");
  _engine.Subpath = class Subpath extends core.Object {
    get startX() {
      return this[startX$];
    }
    set startX(value) {
      if (value == null) dart.nullFailed(I[300], 1281, 10, "startX");
      this[startX$] = value;
    }
    get startY() {
      return this[startY$];
    }
    set startY(value) {
      if (value == null) dart.nullFailed(I[300], 1282, 10, "startY");
      this[startY$] = value;
    }
    get currentX() {
      return this[currentX];
    }
    set currentX(value) {
      if (value == null) dart.nullFailed(I[300], 1283, 10, "currentX");
      this[currentX] = value;
    }
    get currentY() {
      return this[currentY];
    }
    set currentY(value) {
      if (value == null) dart.nullFailed(I[300], 1284, 10, "currentY");
      this[currentY] = value;
    }
    get commands() {
      return this[commands];
    }
    set commands(value) {
      super.commands = value;
    }
    static ['_#new#tearOff'](startX, startY) {
      if (startX == null) dart.nullFailed(I[300], 1279, 16, "startX");
      if (startY == null) dart.nullFailed(I[300], 1279, 29, "startY");
      return new _engine.Subpath.new(startX, startY);
    }
    shift(offset) {
      let t$36549;
      if (offset == null) dart.nullFailed(I[300], 1288, 27, "offset");
      let result = (t$36549 = new _engine.Subpath.new(dart.notNull(this.startX) + dart.notNull(offset.dx), dart.notNull(this.startY) + dart.notNull(offset.dy)), (() => {
        t$36549.currentX = dart.notNull(this.currentX) + dart.notNull(offset.dx);
        t$36549.currentY = dart.notNull(this.currentY) + dart.notNull(offset.dy);
        return t$36549;
      })());
      for (let command of this.commands) {
        result.commands[$add](command.shifted(offset));
      }
      return result;
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "Subpath(" + dart.str(this.commands[$join](", ")) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1303, 12, "() {\n      result = 'Subpath(${commands.join(', ')})';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.Subpath.new = function(startX, startY) {
    if (startX == null) dart.nullFailed(I[300], 1279, 16, "startX");
    if (startY == null) dart.nullFailed(I[300], 1279, 29, "startY");
    this[startX$] = 0.0;
    this[startY$] = 0.0;
    this[currentX] = 0.0;
    this[currentY] = 0.0;
    this[startX$] = startX;
    this[startY$] = startY;
    this[commands] = G$.JSArrayOfPathCommand().of([]);
    ;
  }).prototype = _engine.Subpath.prototype;
  dart.addRtiResources(_engine.Subpath, ["_engine|Subpath"]);
  dart.setMethodSignature(_engine.Subpath, () => dart.global.Object.setPrototypeOf({shift: T$11.OffsetToSubpath()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Subpath))));
  dart.setLibraryUri(_engine.Subpath, I[220]);
  dart.setFieldSignature(_engine.Subpath, () => dart.global.Object.setPrototypeOf({
    startX: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    startY: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    currentX: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    currentY: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    commands: {type: T$11.ListOfPathCommand(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Subpath))));
  dart.defineExtensionMethods(_engine.Subpath, ['toString']);
  _engine.PathCommand = class PathCommand extends core.Object {
    static _transformOffset(x, y, matrix4) {
      if (x == null) dart.nullFailed(I[300], 1320, 44, "x");
      if (y == null) dart.nullFailed(I[300], 1320, 54, "y");
      if (matrix4 == null) dart.nullFailed(I[300], 1320, 69, "matrix4");
      return new ui.Offset.new(dart.notNull(matrix4[$_get](0)) * dart.notNull(x) + dart.notNull(matrix4[$_get](4)) * dart.notNull(y) + dart.notNull(matrix4[$_get](12)), dart.notNull(matrix4[$_get](1)) * dart.notNull(x) + dart.notNull(matrix4[$_get](5)) * dart.notNull(y) + dart.notNull(matrix4[$_get](13)));
    }
  };
  (_engine.PathCommand.new = function() {
    ;
  }).prototype = _engine.PathCommand.prototype;
  dart.addRtiResources(_engine.PathCommand, ["_engine|PathCommand"]);
  dart.setStaticMethodSignature(_engine.PathCommand, () => ['_transformOffset']);
  dart.setLibraryUri(_engine.PathCommand, I[220]);
  var x$6 = dart.privateName(_engine, "MoveTo.x");
  var y$6 = dart.privateName(_engine, "MoveTo.y");
  _engine.MoveTo = class MoveTo extends _engine.PathCommand {
    get x() {
      return this[x$6];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$6];
    }
    set y(value) {
      super.y = value;
    }
    static ['_#new#tearOff'](x, y) {
      if (x == null) dart.nullFailed(I[300], 1326, 21, "x");
      if (y == null) dart.nullFailed(I[300], 1326, 29, "y");
      return new _engine.MoveTo.new(x, y);
    }
    shifted(offset) {
      if (offset == null) dart.nullFailed(I[300], 1332, 28, "offset");
      return new _engine.MoveTo.new(dart.notNull(this.x) + dart.notNull(offset.dx), dart.notNull(this.y) + dart.notNull(offset.dy));
    }
    transform(matrix4, targetPath) {
      if (matrix4 == null) dart.nullFailed(I[300], 1337, 30, "matrix4");
      if (targetPath == null) dart.nullFailed(I[300], 1337, 47, "targetPath");
      let offset = _engine.PathCommand._transformOffset(this.x, this.y, matrix4);
      targetPath.moveTo(offset.dx, offset.dy);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "MoveTo(" + dart.str(this.x) + ", " + dart.str(this.y) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1345, 12, "() {\n      result = 'MoveTo($x, $y)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.MoveTo.new = function(x, y) {
    if (x == null) dart.nullFailed(I[300], 1326, 21, "x");
    if (y == null) dart.nullFailed(I[300], 1326, 29, "y");
    this[x$6] = x;
    this[y$6] = y;
    dart.global.Object.getPrototypeOf(_engine.MoveTo).new.call(this);
    ;
  }).prototype = _engine.MoveTo.prototype;
  dart.addRtiResources(_engine.MoveTo, ["_engine|MoveTo"]);
  dart.setMethodSignature(_engine.MoveTo, () => dart.global.Object.setPrototypeOf({
    shifted: T$11.OffsetToMoveTo(),
    transform: T$11.Float32ListAndPathTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MoveTo))));
  dart.setLibraryUri(_engine.MoveTo, I[220]);
  dart.setFieldSignature(_engine.MoveTo, () => dart.global.Object.setPrototypeOf({
    x: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MoveTo))));
  dart.defineExtensionMethods(_engine.MoveTo, ['toString']);
  var x$7 = dart.privateName(_engine, "LineTo.x");
  var y$7 = dart.privateName(_engine, "LineTo.y");
  _engine.LineTo = class LineTo extends _engine.PathCommand {
    get x() {
      return this[x$7];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$7];
    }
    set y(value) {
      super.y = value;
    }
    static ['_#new#tearOff'](x, y) {
      if (x == null) dart.nullFailed(I[300], 1354, 21, "x");
      if (y == null) dart.nullFailed(I[300], 1354, 29, "y");
      return new _engine.LineTo.new(x, y);
    }
    shifted(offset) {
      if (offset == null) dart.nullFailed(I[300], 1360, 28, "offset");
      return new _engine.LineTo.new(dart.notNull(this.x) + dart.notNull(offset.dx), dart.notNull(this.y) + dart.notNull(offset.dy));
    }
    transform(matrix4, targetPath) {
      if (matrix4 == null) dart.nullFailed(I[300], 1365, 30, "matrix4");
      if (targetPath == null) dart.nullFailed(I[300], 1365, 47, "targetPath");
      let offset = _engine.PathCommand._transformOffset(this.x, this.y, matrix4);
      targetPath.lineTo(offset.dx, offset.dy);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "LineTo(" + dart.str(this.x) + ", " + dart.str(this.y) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1373, 12, "() {\n      result = 'LineTo($x, $y)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.LineTo.new = function(x, y) {
    if (x == null) dart.nullFailed(I[300], 1354, 21, "x");
    if (y == null) dart.nullFailed(I[300], 1354, 29, "y");
    this[x$7] = x;
    this[y$7] = y;
    dart.global.Object.getPrototypeOf(_engine.LineTo).new.call(this);
    ;
  }).prototype = _engine.LineTo.prototype;
  dart.addRtiResources(_engine.LineTo, ["_engine|LineTo"]);
  dart.setMethodSignature(_engine.LineTo, () => dart.global.Object.setPrototypeOf({
    shifted: T$11.OffsetToLineTo(),
    transform: T$11.Float32ListAndPathTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LineTo))));
  dart.setLibraryUri(_engine.LineTo, I[220]);
  dart.setFieldSignature(_engine.LineTo, () => dart.global.Object.setPrototypeOf({
    x: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LineTo))));
  dart.defineExtensionMethods(_engine.LineTo, ['toString']);
  var x$8 = dart.privateName(_engine, "Ellipse.x");
  var y$8 = dart.privateName(_engine, "Ellipse.y");
  var radiusX$ = dart.privateName(_engine, "Ellipse.radiusX");
  var radiusY$ = dart.privateName(_engine, "Ellipse.radiusY");
  var rotation$0 = dart.privateName(_engine, "Ellipse.rotation");
  var startAngle$0 = dart.privateName(_engine, "Ellipse.startAngle");
  var endAngle$0 = dart.privateName(_engine, "Ellipse.endAngle");
  var anticlockwise$ = dart.privateName(_engine, "Ellipse.anticlockwise");
  var _drawArcWithBezier = dart.privateName(_engine, "_drawArcWithBezier");
  var _drawArcSegment = dart.privateName(_engine, "_drawArcSegment");
  _engine.Ellipse = class Ellipse extends _engine.PathCommand {
    get x() {
      return this[x$8];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$8];
    }
    set y(value) {
      super.y = value;
    }
    get radiusX() {
      return this[radiusX$];
    }
    set radiusX(value) {
      super.radiusX = value;
    }
    get radiusY() {
      return this[radiusY$];
    }
    set radiusY(value) {
      super.radiusY = value;
    }
    get rotation() {
      return this[rotation$0];
    }
    set rotation(value) {
      super.rotation = value;
    }
    get startAngle() {
      return this[startAngle$0];
    }
    set startAngle(value) {
      super.startAngle = value;
    }
    get endAngle() {
      return this[endAngle$0];
    }
    set endAngle(value) {
      super.endAngle = value;
    }
    get anticlockwise() {
      return this[anticlockwise$];
    }
    set anticlockwise(value) {
      super.anticlockwise = value;
    }
    static ['_#new#tearOff'](x, y, radiusX, radiusY, rotation, startAngle, endAngle, anticlockwise) {
      if (x == null) dart.nullFailed(I[300], 1382, 22, "x");
      if (y == null) dart.nullFailed(I[300], 1382, 30, "y");
      if (radiusX == null) dart.nullFailed(I[300], 1382, 38, "radiusX");
      if (radiusY == null) dart.nullFailed(I[300], 1382, 52, "radiusY");
      if (rotation == null) dart.nullFailed(I[300], 1382, 66, "rotation");
      if (startAngle == null) dart.nullFailed(I[300], 1383, 12, "startAngle");
      if (endAngle == null) dart.nullFailed(I[300], 1383, 29, "endAngle");
      if (anticlockwise == null) dart.nullFailed(I[300], 1383, 44, "anticlockwise");
      return new _engine.Ellipse.new(x, y, radiusX, radiusY, rotation, startAngle, endAngle, anticlockwise);
    }
    shifted(offset) {
      if (offset == null) dart.nullFailed(I[300], 1395, 29, "offset");
      return new _engine.Ellipse.new(dart.notNull(this.x) + dart.notNull(offset.dx), dart.notNull(this.y) + dart.notNull(offset.dy), this.radiusX, this.radiusY, this.rotation, this.startAngle, this.endAngle, this.anticlockwise);
    }
    transform(matrix4, targetPath) {
      if (matrix4 == null) dart.nullFailed(I[300], 1401, 30, "matrix4");
      if (targetPath == null) dart.nullFailed(I[300], 1401, 51, "targetPath");
      let bezierPath = ui.Path.new();
      this[_drawArcWithBezier](this.x, this.y, this.radiusX, this.radiusY, this.rotation, this.startAngle, dart.test(this.anticlockwise) ? dart.notNull(this.startAngle) - dart.notNull(this.endAngle) : dart.notNull(this.endAngle) - dart.notNull(this.startAngle), matrix4, bezierPath);
      targetPath.addPathWithMode(bezierPath, 0.0, 0.0, matrix4, 0);
    }
    [_drawArcWithBezier](centerX, centerY, radiusX, radiusY, rotation, startAngle, sweep, matrix4, targetPath) {
      if (centerX == null) dart.nullFailed(I[300], 1418, 14, "centerX");
      if (centerY == null) dart.nullFailed(I[300], 1419, 14, "centerY");
      if (radiusX == null) dart.nullFailed(I[300], 1420, 14, "radiusX");
      if (radiusY == null) dart.nullFailed(I[300], 1421, 14, "radiusY");
      if (rotation == null) dart.nullFailed(I[300], 1422, 14, "rotation");
      if (startAngle == null) dart.nullFailed(I[300], 1423, 14, "startAngle");
      if (sweep == null) dart.nullFailed(I[300], 1424, 14, "sweep");
      if (matrix4 == null) dart.nullFailed(I[300], 1425, 19, "matrix4");
      if (targetPath == null) dart.nullFailed(I[300], 1426, 15, "targetPath");
      let ratio = sweep[$abs]() / (3.141592653589793 / 2.0);
      if ((1.0 - ratio)[$abs]() < 1e-7) {
        ratio = 1.0;
      }
      let segments = math.max(T$.int(), ratio[$ceil](), 1);
      let anglePerSegment = dart.notNull(sweep) / segments;
      let angle = startAngle;
      for (let segment = 0; segment < segments; segment = segment + 1) {
        this[_drawArcSegment](targetPath, centerX, centerY, radiusX, radiusY, rotation, angle, anglePerSegment, segment === 0, matrix4);
        angle = dart.notNull(angle) + anglePerSegment;
      }
    }
    [_drawArcSegment](path, centerX, centerY, radiusX, radiusY, rotation, startAngle, sweep, startPath, matrix4) {
      if (path == null) dart.nullFailed(I[300], 1442, 15, "path");
      if (centerX == null) dart.nullFailed(I[300], 1443, 14, "centerX");
      if (centerY == null) dart.nullFailed(I[300], 1444, 14, "centerY");
      if (radiusX == null) dart.nullFailed(I[300], 1445, 14, "radiusX");
      if (radiusY == null) dart.nullFailed(I[300], 1446, 14, "radiusY");
      if (rotation == null) dart.nullFailed(I[300], 1447, 14, "rotation");
      if (startAngle == null) dart.nullFailed(I[300], 1448, 14, "startAngle");
      if (sweep == null) dart.nullFailed(I[300], 1449, 14, "sweep");
      if (startPath == null) dart.nullFailed(I[300], 1450, 12, "startPath");
      if (matrix4 == null) dart.nullFailed(I[300], 1451, 19, "matrix4");
      let s = 4 / 3 * math.tan(dart.notNull(sweep) / 4);
      let x1 = math.cos(startAngle);
      let y1 = math.sin(startAngle);
      let endAngle = dart.notNull(startAngle) + dart.notNull(sweep);
      let x2 = math.cos(endAngle);
      let y2 = math.sin(endAngle);
      let cpx1 = (x1 - y1 * s) * dart.notNull(radiusX);
      let cpy1 = (y1 + x1 * s) * dart.notNull(radiusY);
      let cpx2 = (x2 + y2 * s) * dart.notNull(radiusX);
      let cpy2 = (y2 - x2 * s) * dart.notNull(radiusY);
      let endPointX = dart.notNull(centerX) + x2 * dart.notNull(radiusX);
      let endPointY = dart.notNull(centerY) + y2 * dart.notNull(radiusY);
      let rotationRad = dart.notNull(rotation) * 3.141592653589793 / 180.0;
      let cosR = math.cos(rotationRad);
      let sinR = math.sin(rotationRad);
      if (dart.test(startPath)) {
        let scaledX1 = x1 * dart.notNull(radiusX);
        let scaledY1 = y1 * dart.notNull(radiusY);
        if (rotation === 0.0) {
          path.moveTo(dart.notNull(centerX) + scaledX1, dart.notNull(centerY) + scaledY1);
        } else {
          let rotatedStartX = scaledX1 * cosR + scaledY1 * sinR;
          let rotatedStartY = scaledY1 * cosR - scaledX1 * sinR;
          path.moveTo(dart.notNull(centerX) + rotatedStartX, dart.notNull(centerY) + rotatedStartY);
        }
      }
      if (rotation === 0.0) {
        path.cubicTo(dart.notNull(centerX) + cpx1, dart.notNull(centerY) + cpy1, dart.notNull(centerX) + cpx2, dart.notNull(centerY) + cpy2, endPointX, endPointY);
      } else {
        let rotatedCpx1 = dart.notNull(centerX) + cpx1 * cosR + cpy1 * sinR;
        let rotatedCpy1 = dart.notNull(centerY) + cpy1 * cosR - cpx1 * sinR;
        let rotatedCpx2 = dart.notNull(centerX) + cpx2 * cosR + cpy2 * sinR;
        let rotatedCpy2 = dart.notNull(centerY) + cpy2 * cosR - cpx2 * sinR;
        let rotatedEndX = dart.notNull(centerX) + (endPointX - dart.notNull(centerX)) * cosR + (endPointY - dart.notNull(centerY)) * sinR;
        let rotatedEndY = dart.notNull(centerY) + (endPointY - dart.notNull(centerY)) * cosR - (endPointX - dart.notNull(centerX)) * sinR;
        path.cubicTo(rotatedCpx1, rotatedCpy1, rotatedCpx2, rotatedCpy2, rotatedEndX, rotatedEndY);
      }
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "Ellipse(" + dart.str(this.x) + ", " + dart.str(this.y) + ", " + dart.str(this.radiusX) + ", " + dart.str(this.radiusY) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1507, 12, "() {\n      result = 'Ellipse($x, $y, $radiusX, $radiusY)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.Ellipse.new = function(x, y, radiusX, radiusY, rotation, startAngle, endAngle, anticlockwise) {
    if (x == null) dart.nullFailed(I[300], 1382, 22, "x");
    if (y == null) dart.nullFailed(I[300], 1382, 30, "y");
    if (radiusX == null) dart.nullFailed(I[300], 1382, 38, "radiusX");
    if (radiusY == null) dart.nullFailed(I[300], 1382, 52, "radiusY");
    if (rotation == null) dart.nullFailed(I[300], 1382, 66, "rotation");
    if (startAngle == null) dart.nullFailed(I[300], 1383, 12, "startAngle");
    if (endAngle == null) dart.nullFailed(I[300], 1383, 29, "endAngle");
    if (anticlockwise == null) dart.nullFailed(I[300], 1383, 44, "anticlockwise");
    this[x$8] = x;
    this[y$8] = y;
    this[radiusX$] = radiusX;
    this[radiusY$] = radiusY;
    this[rotation$0] = rotation;
    this[startAngle$0] = startAngle;
    this[endAngle$0] = endAngle;
    this[anticlockwise$] = anticlockwise;
    dart.global.Object.getPrototypeOf(_engine.Ellipse).new.call(this);
    ;
  }).prototype = _engine.Ellipse.prototype;
  dart.addRtiResources(_engine.Ellipse, ["_engine|Ellipse"]);
  dart.setMethodSignature(_engine.Ellipse, () => dart.global.Object.setPrototypeOf({
    shifted: T$11.OffsetToEllipse(),
    transform: T$11.Float32ListAndSurfacePathTovoid(),
    [_drawArcWithBezier]: T$11.doubleAnddoubleAnddouble__Tovoid$4(),
    [_drawArcSegment]: T$11.PathAnddoubleAnddouble__Tovoid$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Ellipse))));
  dart.setLibraryUri(_engine.Ellipse, I[220]);
  dart.setFieldSignature(_engine.Ellipse, () => dart.global.Object.setPrototypeOf({
    x: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    radiusX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    radiusY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    rotation: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    startAngle: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    endAngle: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    anticlockwise: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Ellipse))));
  dart.defineExtensionMethods(_engine.Ellipse, ['toString']);
  var x1$ = dart.privateName(_engine, "QuadraticCurveTo.x1");
  var y1$ = dart.privateName(_engine, "QuadraticCurveTo.y1");
  var x2$ = dart.privateName(_engine, "QuadraticCurveTo.x2");
  var y2$ = dart.privateName(_engine, "QuadraticCurveTo.y2");
  _engine.QuadraticCurveTo = class QuadraticCurveTo extends _engine.PathCommand {
    get x1() {
      return this[x1$];
    }
    set x1(value) {
      super.x1 = value;
    }
    get y1() {
      return this[y1$];
    }
    set y1(value) {
      super.y1 = value;
    }
    get x2() {
      return this[x2$];
    }
    set x2(value) {
      super.x2 = value;
    }
    get y2() {
      return this[y2$];
    }
    set y2(value) {
      super.y2 = value;
    }
    static ['_#new#tearOff'](x1, y1, x2, y2) {
      if (x1 == null) dart.nullFailed(I[300], 1516, 31, "x1");
      if (y1 == null) dart.nullFailed(I[300], 1516, 40, "y1");
      if (x2 == null) dart.nullFailed(I[300], 1516, 49, "x2");
      if (y2 == null) dart.nullFailed(I[300], 1516, 58, "y2");
      return new _engine.QuadraticCurveTo.new(x1, y1, x2, y2);
    }
    shifted(offset) {
      if (offset == null) dart.nullFailed(I[300], 1524, 38, "offset");
      return new _engine.QuadraticCurveTo.new(dart.notNull(this.x1) + dart.notNull(offset.dx), dart.notNull(this.y1) + dart.notNull(offset.dy), dart.notNull(this.x2) + dart.notNull(offset.dx), dart.notNull(this.y2) + dart.notNull(offset.dy));
    }
    transform(matrix4, targetPath) {
      if (matrix4 == null) dart.nullFailed(I[300], 1530, 30, "matrix4");
      if (targetPath == null) dart.nullFailed(I[300], 1530, 47, "targetPath");
      let m0 = matrix4[$_get](0);
      let m1 = matrix4[$_get](1);
      let m4 = matrix4[$_get](4);
      let m5 = matrix4[$_get](5);
      let m12 = matrix4[$_get](12);
      let m13 = matrix4[$_get](13);
      let transformedX1 = dart.notNull(m0) * dart.notNull(this.x1) + dart.notNull(m4) * dart.notNull(this.y1) + dart.notNull(m12);
      let transformedY1 = dart.notNull(m1) * dart.notNull(this.x1) + dart.notNull(m5) * dart.notNull(this.y1) + dart.notNull(m13);
      let transformedX2 = dart.notNull(m0) * dart.notNull(this.x2) + dart.notNull(m4) * dart.notNull(this.y2) + dart.notNull(m12);
      let transformedY2 = dart.notNull(m1) * dart.notNull(this.x2) + dart.notNull(m5) * dart.notNull(this.y2) + dart.notNull(m13);
      targetPath.quadraticBezierTo(transformedX1, transformedY1, transformedX2, transformedY2);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "QuadraticCurveTo(" + dart.str(this.x1) + ", " + dart.str(this.y1) + ", " + dart.str(this.x2) + ", " + dart.str(this.y2) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1548, 12, "() {\n      result = 'QuadraticCurveTo($x1, $y1, $x2, $y2)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.QuadraticCurveTo.new = function(x1, y1, x2, y2) {
    if (x1 == null) dart.nullFailed(I[300], 1516, 31, "x1");
    if (y1 == null) dart.nullFailed(I[300], 1516, 40, "y1");
    if (x2 == null) dart.nullFailed(I[300], 1516, 49, "x2");
    if (y2 == null) dart.nullFailed(I[300], 1516, 58, "y2");
    this[x1$] = x1;
    this[y1$] = y1;
    this[x2$] = x2;
    this[y2$] = y2;
    dart.global.Object.getPrototypeOf(_engine.QuadraticCurveTo).new.call(this);
    ;
  }).prototype = _engine.QuadraticCurveTo.prototype;
  dart.addRtiResources(_engine.QuadraticCurveTo, ["_engine|QuadraticCurveTo"]);
  dart.setMethodSignature(_engine.QuadraticCurveTo, () => dart.global.Object.setPrototypeOf({
    shifted: T$11.OffsetToQuadraticCurveTo(),
    transform: T$11.Float32ListAndPathTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.QuadraticCurveTo))));
  dart.setLibraryUri(_engine.QuadraticCurveTo, I[220]);
  dart.setFieldSignature(_engine.QuadraticCurveTo, () => dart.global.Object.setPrototypeOf({
    x1: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y1: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    x2: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y2: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.QuadraticCurveTo))));
  dart.defineExtensionMethods(_engine.QuadraticCurveTo, ['toString']);
  var x1$0 = dart.privateName(_engine, "BezierCurveTo.x1");
  var y1$0 = dart.privateName(_engine, "BezierCurveTo.y1");
  var x2$0 = dart.privateName(_engine, "BezierCurveTo.x2");
  var y2$0 = dart.privateName(_engine, "BezierCurveTo.y2");
  var x3$ = dart.privateName(_engine, "BezierCurveTo.x3");
  var y3$ = dart.privateName(_engine, "BezierCurveTo.y3");
  _engine.BezierCurveTo = class BezierCurveTo extends _engine.PathCommand {
    get x1() {
      return this[x1$0];
    }
    set x1(value) {
      super.x1 = value;
    }
    get y1() {
      return this[y1$0];
    }
    set y1(value) {
      super.y1 = value;
    }
    get x2() {
      return this[x2$0];
    }
    set x2(value) {
      super.x2 = value;
    }
    get y2() {
      return this[y2$0];
    }
    set y2(value) {
      super.y2 = value;
    }
    get x3() {
      return this[x3$];
    }
    set x3(value) {
      super.x3 = value;
    }
    get y3() {
      return this[y3$];
    }
    set y3(value) {
      super.y3 = value;
    }
    static ['_#new#tearOff'](x1, y1, x2, y2, x3, y3) {
      if (x1 == null) dart.nullFailed(I[300], 1557, 28, "x1");
      if (y1 == null) dart.nullFailed(I[300], 1557, 37, "y1");
      if (x2 == null) dart.nullFailed(I[300], 1557, 46, "x2");
      if (y2 == null) dart.nullFailed(I[300], 1557, 55, "y2");
      if (x3 == null) dart.nullFailed(I[300], 1557, 64, "x3");
      if (y3 == null) dart.nullFailed(I[300], 1557, 73, "y3");
      return new _engine.BezierCurveTo.new(x1, y1, x2, y2, x3, y3);
    }
    shifted(offset) {
      if (offset == null) dart.nullFailed(I[300], 1567, 35, "offset");
      return new _engine.BezierCurveTo.new(dart.notNull(this.x1) + dart.notNull(offset.dx), dart.notNull(this.y1) + dart.notNull(offset.dy), dart.notNull(this.x2) + dart.notNull(offset.dx), dart.notNull(this.y2) + dart.notNull(offset.dy), dart.notNull(this.x3) + dart.notNull(offset.dx), dart.notNull(this.y3) + dart.notNull(offset.dy));
    }
    transform(matrix4, targetPath) {
      if (matrix4 == null) dart.nullFailed(I[300], 1573, 30, "matrix4");
      if (targetPath == null) dart.nullFailed(I[300], 1573, 47, "targetPath");
      let s0 = matrix4[$_get](0);
      let s1 = matrix4[$_get](1);
      let s4 = matrix4[$_get](4);
      let s5 = matrix4[$_get](5);
      let s12 = matrix4[$_get](12);
      let s13 = matrix4[$_get](13);
      let transformedX1 = dart.notNull(s0) * dart.notNull(this.x1) + dart.notNull(s4) * dart.notNull(this.y1) + dart.notNull(s12);
      let transformedY1 = dart.notNull(s1) * dart.notNull(this.x1) + dart.notNull(s5) * dart.notNull(this.y1) + dart.notNull(s13);
      let transformedX2 = dart.notNull(s0) * dart.notNull(this.x2) + dart.notNull(s4) * dart.notNull(this.y2) + dart.notNull(s12);
      let transformedY2 = dart.notNull(s1) * dart.notNull(this.x2) + dart.notNull(s5) * dart.notNull(this.y2) + dart.notNull(s13);
      let transformedX3 = dart.notNull(s0) * dart.notNull(this.x3) + dart.notNull(s4) * dart.notNull(this.y3) + dart.notNull(s12);
      let transformedY3 = dart.notNull(s1) * dart.notNull(this.x3) + dart.notNull(s5) * dart.notNull(this.y3) + dart.notNull(s13);
      targetPath.cubicTo(transformedX1, transformedY1, transformedX2, transformedY2, transformedX3, transformedY3);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "BezierCurveTo(" + dart.str(this.x1) + ", " + dart.str(this.y1) + ", " + dart.str(this.x2) + ", " + dart.str(this.y2) + ", " + dart.str(this.x3) + ", " + dart.str(this.y3) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1593, 12, "() {\n      result = 'BezierCurveTo($x1, $y1, $x2, $y2, $x3, $y3)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.BezierCurveTo.new = function(x1, y1, x2, y2, x3, y3) {
    if (x1 == null) dart.nullFailed(I[300], 1557, 28, "x1");
    if (y1 == null) dart.nullFailed(I[300], 1557, 37, "y1");
    if (x2 == null) dart.nullFailed(I[300], 1557, 46, "x2");
    if (y2 == null) dart.nullFailed(I[300], 1557, 55, "y2");
    if (x3 == null) dart.nullFailed(I[300], 1557, 64, "x3");
    if (y3 == null) dart.nullFailed(I[300], 1557, 73, "y3");
    this[x1$0] = x1;
    this[y1$0] = y1;
    this[x2$0] = x2;
    this[y2$0] = y2;
    this[x3$] = x3;
    this[y3$] = y3;
    dart.global.Object.getPrototypeOf(_engine.BezierCurveTo).new.call(this);
    ;
  }).prototype = _engine.BezierCurveTo.prototype;
  dart.addRtiResources(_engine.BezierCurveTo, ["_engine|BezierCurveTo"]);
  dart.setMethodSignature(_engine.BezierCurveTo, () => dart.global.Object.setPrototypeOf({
    shifted: T$11.OffsetToBezierCurveTo(),
    transform: T$11.Float32ListAndPathTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BezierCurveTo))));
  dart.setLibraryUri(_engine.BezierCurveTo, I[220]);
  dart.setFieldSignature(_engine.BezierCurveTo, () => dart.global.Object.setPrototypeOf({
    x1: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y1: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    x2: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y2: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    x3: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y3: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.BezierCurveTo))));
  dart.defineExtensionMethods(_engine.BezierCurveTo, ['toString']);
  var x$9 = dart.privateName(_engine, "RectCommand.x");
  var y$9 = dart.privateName(_engine, "RectCommand.y");
  var width$5 = dart.privateName(_engine, "RectCommand.width");
  var height$5 = dart.privateName(_engine, "RectCommand.height");
  _engine.RectCommand = class RectCommand extends _engine.PathCommand {
    get x() {
      return this[x$9];
    }
    set x(value) {
      super.x = value;
    }
    get y() {
      return this[y$9];
    }
    set y(value) {
      super.y = value;
    }
    get width() {
      return this[width$5];
    }
    set width(value) {
      super.width = value;
    }
    get height() {
      return this[height$5];
    }
    set height(value) {
      super.height = value;
    }
    static ['_#new#tearOff'](x, y, width, height) {
      if (x == null) dart.nullFailed(I[300], 1602, 26, "x");
      if (y == null) dart.nullFailed(I[300], 1602, 34, "y");
      if (width == null) dart.nullFailed(I[300], 1602, 42, "width");
      if (height == null) dart.nullFailed(I[300], 1602, 54, "height");
      return new _engine.RectCommand.new(x, y, width, height);
    }
    shifted(offset) {
      if (offset == null) dart.nullFailed(I[300], 1610, 33, "offset");
      return new _engine.RectCommand.new(dart.notNull(this.x) + dart.notNull(offset.dx), dart.notNull(this.y) + dart.notNull(offset.dy), this.width, this.height);
    }
    transform(matrix4, targetPath) {
      if (matrix4 == null) dart.nullFailed(I[300], 1615, 30, "matrix4");
      if (targetPath == null) dart.nullFailed(I[300], 1615, 47, "targetPath");
      let s0 = matrix4[$_get](0);
      let s1 = matrix4[$_get](1);
      let s4 = matrix4[$_get](4);
      let s5 = matrix4[$_get](5);
      let s12 = matrix4[$_get](12);
      let s13 = matrix4[$_get](13);
      let transformedX1 = dart.notNull(s0) * dart.notNull(this.x) + dart.notNull(s4) * dart.notNull(this.y) + dart.notNull(s12);
      let transformedY1 = dart.notNull(s1) * dart.notNull(this.x) + dart.notNull(s5) * dart.notNull(this.y) + dart.notNull(s13);
      let x2 = dart.notNull(this.x) + dart.notNull(this.width);
      let y2 = dart.notNull(this.y) + dart.notNull(this.height);
      let transformedX2 = dart.notNull(s0) * x2 + dart.notNull(s4) * dart.notNull(this.y) + dart.notNull(s12);
      let transformedY2 = dart.notNull(s1) * x2 + dart.notNull(s5) * dart.notNull(this.y) + dart.notNull(s13);
      let transformedX3 = dart.notNull(s0) * x2 + dart.notNull(s4) * y2 + dart.notNull(s12);
      let transformedY3 = dart.notNull(s1) * x2 + dart.notNull(s5) * y2 + dart.notNull(s13);
      let transformedX4 = dart.notNull(s0) * dart.notNull(this.x) + dart.notNull(s4) * y2 + dart.notNull(s12);
      let transformedY4 = dart.notNull(s1) * dart.notNull(this.x) + dart.notNull(s5) * y2 + dart.notNull(s13);
      if (transformedY1 === transformedY2 && transformedY3 === transformedY4 && transformedX1 === transformedX4 && transformedX2 === transformedX3) {
        targetPath.addRect(new ui.Rect.fromLTRB(transformedX1, transformedY1, transformedX3, transformedY3));
      } else {
        targetPath.moveTo(transformedX1, transformedY1);
        targetPath.lineTo(transformedX2, transformedY2);
        targetPath.lineTo(transformedX3, transformedY3);
        targetPath.lineTo(transformedX4, transformedY4);
        targetPath.close();
      }
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "Rect(" + dart.str(this.x) + ", " + dart.str(this.y) + ", " + dart.str(this.width) + ", " + dart.str(this.height) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1651, 12, "() {\n      result = 'Rect($x, $y, $width, $height)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.RectCommand.new = function(x, y, width, height) {
    if (x == null) dart.nullFailed(I[300], 1602, 26, "x");
    if (y == null) dart.nullFailed(I[300], 1602, 34, "y");
    if (width == null) dart.nullFailed(I[300], 1602, 42, "width");
    if (height == null) dart.nullFailed(I[300], 1602, 54, "height");
    this[x$9] = x;
    this[y$9] = y;
    this[width$5] = width;
    this[height$5] = height;
    dart.global.Object.getPrototypeOf(_engine.RectCommand).new.call(this);
    ;
  }).prototype = _engine.RectCommand.prototype;
  dart.addRtiResources(_engine.RectCommand, ["_engine|RectCommand"]);
  dart.setMethodSignature(_engine.RectCommand, () => dart.global.Object.setPrototypeOf({
    shifted: T$11.OffsetToRectCommand(),
    transform: T$11.Float32ListAndPathTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RectCommand))));
  dart.setLibraryUri(_engine.RectCommand, I[220]);
  dart.setFieldSignature(_engine.RectCommand, () => dart.global.Object.setPrototypeOf({
    x: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    y: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    width: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RectCommand))));
  dart.defineExtensionMethods(_engine.RectCommand, ['toString']);
  var rrect$4 = dart.privateName(_engine, "RRectCommand.rrect");
  _engine.RRectCommand = class RRectCommand extends _engine.PathCommand {
    get rrect() {
      return this[rrect$4];
    }
    set rrect(value) {
      super.rrect = value;
    }
    static ['_#new#tearOff'](rrect) {
      if (rrect == null) dart.nullFailed(I[300], 1660, 27, "rrect");
      return new _engine.RRectCommand.new(rrect);
    }
    shifted(offset) {
      if (offset == null) dart.nullFailed(I[300], 1665, 34, "offset");
      return new _engine.RRectCommand.new(this.rrect.shift(offset));
    }
    transform(matrix4, targetPath) {
      if (matrix4 == null) dart.nullFailed(I[300], 1670, 30, "matrix4");
      if (targetPath == null) dart.nullFailed(I[300], 1670, 51, "targetPath");
      let roundRectPath = ui.Path.new();
      new _engine.RRectToPathRenderer.new(roundRectPath).render(this.rrect);
      targetPath.addPathWithMode(roundRectPath, 0.0, 0.0, matrix4, 0);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = dart.str(this.rrect);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1680, 12, "() {\n      result = '$rrect';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.RRectCommand.new = function(rrect) {
    if (rrect == null) dart.nullFailed(I[300], 1660, 27, "rrect");
    this[rrect$4] = rrect;
    dart.global.Object.getPrototypeOf(_engine.RRectCommand).new.call(this);
    ;
  }).prototype = _engine.RRectCommand.prototype;
  dart.addRtiResources(_engine.RRectCommand, ["_engine|RRectCommand"]);
  dart.setMethodSignature(_engine.RRectCommand, () => dart.global.Object.setPrototypeOf({
    shifted: T$11.OffsetToRRectCommand(),
    transform: T$11.Float32ListAndSurfacePathTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RRectCommand))));
  dart.setLibraryUri(_engine.RRectCommand, I[220]);
  dart.setFieldSignature(_engine.RRectCommand, () => dart.global.Object.setPrototypeOf({rrect: {type: T$8.RRect(), isConst: false, isFinal: true, libraryUri: I[198]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RRectCommand))));
  dart.defineExtensionMethods(_engine.RRectCommand, ['toString']);
  _engine.CloseCommand = class CloseCommand extends _engine.PathCommand {
    shifted(offset) {
      if (offset == null) dart.nullFailed(I[300], 1690, 34, "offset");
      return this;
    }
    transform(matrix4, targetPath) {
      if (matrix4 == null) dart.nullFailed(I[300], 1695, 30, "matrix4");
      if (targetPath == null) dart.nullFailed(I[300], 1695, 47, "targetPath");
      targetPath.close();
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "Close()";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 1702, 12, "() {\n      result = 'Close()';\n      return true;\n    }()");
      return result;
    }
    static ['_#new#tearOff']() {
      return new _engine.CloseCommand.new();
    }
  };
  (_engine.CloseCommand.new = function() {
    dart.global.Object.getPrototypeOf(_engine.CloseCommand).new.call(this);
    ;
  }).prototype = _engine.CloseCommand.prototype;
  dart.addRtiResources(_engine.CloseCommand, ["_engine|CloseCommand"]);
  dart.setMethodSignature(_engine.CloseCommand, () => dart.global.Object.setPrototypeOf({
    shifted: T$11.OffsetToCloseCommand(),
    transform: T$11.Float32ListAndPathTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CloseCommand))));
  dart.setLibraryUri(_engine.CloseCommand, I[220]);
  dart.defineExtensionMethods(_engine.CloseCommand, ['toString']);
  var _didPaintInsideClipArea = dart.privateName(_engine, "_didPaintInsideClipArea");
  var _left$0 = dart.privateName(_engine, "_left");
  var _top = dart.privateName(_engine, "_top");
  var _right$0 = dart.privateName(_engine, "_right");
  var _bottom = dart.privateName(_engine, "_bottom");
  var _transforms = dart.privateName(_engine, "_transforms");
  var _currentMatrixIsIdentity = dart.privateName(_engine, "_currentMatrixIsIdentity");
  var _clipRectInitialized = dart.privateName(_engine, "_clipRectInitialized");
  var _currentClipLeft = dart.privateName(_engine, "_currentClipLeft");
  var _currentClipTop = dart.privateName(_engine, "_currentClipTop");
  var _currentClipRight = dart.privateName(_engine, "_currentClipRight");
  var _currentClipBottom = dart.privateName(_engine, "_currentClipBottom");
  _engine._PaintBounds = class _PaintBounds extends core.Object {
    static ['_#new#tearOff'](maxPaintBounds) {
      if (maxPaintBounds == null) dart.nullFailed(I[300], 1711, 21, "maxPaintBounds");
      return new _engine._PaintBounds.new(maxPaintBounds);
    }
    translate(dx, dy) {
      if (dx == null) dart.nullFailed(I[300], 1737, 25, "dx");
      if (dy == null) dart.nullFailed(I[300], 1737, 36, "dy");
      if (dx !== 0.0 || dy !== 0.0) {
        this[_currentMatrixIsIdentity] = false;
      }
      this[_currentMatrix].translate(dx, dy);
    }
    scale(sx, sy) {
      if (sx == null) dart.nullFailed(I[300], 1744, 21, "sx");
      if (sy == null) dart.nullFailed(I[300], 1744, 32, "sy");
      if (sx !== 1.0 || sy !== 1.0) {
        this[_currentMatrixIsIdentity] = false;
      }
      this[_currentMatrix].scale(sx, sy, 1.0);
    }
    rotateZ(radians) {
      if (radians == null) dart.nullFailed(I[300], 1751, 23, "radians");
      if (radians !== 0.0) {
        this[_currentMatrixIsIdentity] = false;
      }
      this[_currentMatrix].rotateZ(radians);
    }
    transform(matrix4) {
      if (matrix4 == null) dart.nullFailed(I[300], 1758, 30, "matrix4");
      let m4 = new _engine.Matrix4.fromFloat32List(matrix4);
      this[_currentMatrix].multiply(m4);
      this[_currentMatrixIsIdentity] = this[_currentMatrix].isIdentity();
    }
    skew(sx, sy) {
      if (sx == null) dart.nullFailed(I[300], 1764, 20, "sx");
      if (sy == null) dart.nullFailed(I[300], 1764, 31, "sy");
      this[_currentMatrixIsIdentity] = false;
      let skewMatrix = new _engine.Matrix4.identity();
      let storage = skewMatrix.storage;
      storage[$_set](1, sy);
      storage[$_set](4, sx);
      this[_currentMatrix].multiply(skewMatrix);
    }
    clipRect(rect, command) {
      if (rect == null) dart.nullFailed(I[300], 1778, 31, "rect");
      if (command == null) dart.nullFailed(I[300], 1778, 49, "command");
      let left = rect.left;
      let top = rect.top;
      let right = rect.right;
      let bottom = rect.bottom;
      if (!dart.test(this[_currentMatrixIsIdentity])) {
        _engine._PaintBounds._tempRectData[$_set](0, left);
        _engine._PaintBounds._tempRectData[$_set](1, top);
        _engine._PaintBounds._tempRectData[$_set](2, right);
        _engine._PaintBounds._tempRectData[$_set](3, bottom);
        _engine.transformLTRB(this[_currentMatrix], _engine._PaintBounds._tempRectData);
        left = _engine._PaintBounds._tempRectData[$_get](0);
        top = _engine._PaintBounds._tempRectData[$_get](1);
        right = _engine._PaintBounds._tempRectData[$_get](2);
        bottom = _engine._PaintBounds._tempRectData[$_get](3);
      }
      if (!dart.test(this[_clipRectInitialized])) {
        this[_currentClipLeft] = left;
        this[_currentClipTop] = top;
        this[_currentClipRight] = right;
        this[_currentClipBottom] = bottom;
        this[_clipRectInitialized] = true;
      } else {
        if (dart.notNull(left) > dart.notNull(this[_currentClipLeft])) {
          this[_currentClipLeft] = left;
        }
        if (dart.notNull(top) > dart.notNull(this[_currentClipTop])) {
          this[_currentClipTop] = top;
        }
        if (dart.notNull(right) < dart.notNull(this[_currentClipRight])) {
          this[_currentClipRight] = right;
        }
        if (dart.notNull(bottom) < dart.notNull(this[_currentClipBottom])) {
          this[_currentClipBottom] = bottom;
        }
      }
      if (dart.notNull(this[_currentClipLeft]) >= dart.notNull(this[_currentClipRight]) || dart.notNull(this[_currentClipTop]) >= dart.notNull(this[_currentClipBottom])) {
        command.isClippedOut = true;
      } else {
        command.leftBound = this[_currentClipLeft];
        command.topBound = this[_currentClipTop];
        command.rightBound = this[_currentClipRight];
        command.bottomBound = this[_currentClipBottom];
      }
    }
    getDestinationClipBounds() {
      if (!dart.test(this[_clipRectInitialized])) {
        return null;
      } else {
        return new ui.Rect.fromLTRB(this[_currentClipLeft], this[_currentClipTop], this[_currentClipRight], this[_currentClipBottom]);
      }
    }
    grow(r, command) {
      if (r == null) dart.nullFailed(I[300], 1844, 21, "r");
      if (command == null) dart.nullFailed(I[300], 1844, 36, "command");
      this.growLTRB(r.left, r.top, r.right, r.bottom, command);
    }
    growLTRB(left, top, right, bottom, command) {
      if (left == null) dart.nullFailed(I[300], 1850, 24, "left");
      if (top == null) dart.nullFailed(I[300], 1850, 37, "top");
      if (right == null) dart.nullFailed(I[300], 1850, 49, "right");
      if (bottom == null) dart.nullFailed(I[300], 1850, 63, "bottom");
      if (command == null) dart.nullFailed(I[300], 1851, 19, "command");
      if (left == right || top == bottom) {
        command.isClippedOut = true;
        return;
      }
      let transformedPointLeft = left;
      let transformedPointTop = top;
      let transformedPointRight = right;
      let transformedPointBottom = bottom;
      if (!dart.test(this[_currentMatrixIsIdentity])) {
        _engine._PaintBounds._tempRectData[$_set](0, left);
        _engine._PaintBounds._tempRectData[$_set](1, top);
        _engine._PaintBounds._tempRectData[$_set](2, right);
        _engine._PaintBounds._tempRectData[$_set](3, bottom);
        _engine.transformLTRB(this[_currentMatrix], _engine._PaintBounds._tempRectData);
        transformedPointLeft = _engine._PaintBounds._tempRectData[$_get](0);
        transformedPointTop = _engine._PaintBounds._tempRectData[$_get](1);
        transformedPointRight = _engine._PaintBounds._tempRectData[$_get](2);
        transformedPointBottom = _engine._PaintBounds._tempRectData[$_get](3);
      }
      if (dart.test(this[_clipRectInitialized])) {
        if (dart.notNull(transformedPointLeft) >= dart.notNull(this[_currentClipRight])) {
          command.isClippedOut = true;
          return;
        }
        if (dart.notNull(transformedPointRight) <= dart.notNull(this[_currentClipLeft])) {
          command.isClippedOut = true;
          return;
        }
        if (dart.notNull(transformedPointTop) >= dart.notNull(this[_currentClipBottom])) {
          command.isClippedOut = true;
          return;
        }
        if (dart.notNull(transformedPointBottom) <= dart.notNull(this[_currentClipTop])) {
          command.isClippedOut = true;
          return;
        }
        if (dart.notNull(transformedPointLeft) < dart.notNull(this[_currentClipLeft])) {
          transformedPointLeft = this[_currentClipLeft];
        }
        if (dart.notNull(transformedPointRight) > dart.notNull(this[_currentClipRight])) {
          transformedPointRight = this[_currentClipRight];
        }
        if (dart.notNull(transformedPointTop) < dart.notNull(this[_currentClipTop])) {
          transformedPointTop = this[_currentClipTop];
        }
        if (dart.notNull(transformedPointBottom) > dart.notNull(this[_currentClipBottom])) {
          transformedPointBottom = this[_currentClipBottom];
        }
      }
      command.leftBound = transformedPointLeft;
      command.topBound = transformedPointTop;
      command.rightBound = transformedPointRight;
      command.bottomBound = transformedPointBottom;
      if (dart.test(this[_didPaintInsideClipArea])) {
        this[_left$0] = math.min(T$.double(), math.min(T$.double(), this[_left$0], transformedPointLeft), transformedPointRight);
        this[_right$0] = math.max(T$.double(), math.max(T$.double(), this[_right$0], transformedPointLeft), transformedPointRight);
        this[_top] = math.min(T$.double(), math.min(T$.double(), this[_top], transformedPointTop), transformedPointBottom);
        this[_bottom] = math.max(T$.double(), math.max(T$.double(), this[_bottom], transformedPointTop), transformedPointBottom);
      } else {
        this[_left$0] = math.min(T$.double(), transformedPointLeft, transformedPointRight);
        this[_right$0] = math.max(T$.double(), transformedPointLeft, transformedPointRight);
        this[_top] = math.min(T$.double(), transformedPointTop, transformedPointBottom);
        this[_bottom] = math.max(T$.double(), transformedPointTop, transformedPointBottom);
      }
      this[_didPaintInsideClipArea] = true;
    }
    growBounds(bounds) {
      if (bounds == null) dart.nullFailed(I[300], 1930, 27, "bounds");
      let left = bounds.left;
      let top = bounds.top;
      let right = bounds.right;
      let bottom = bounds.bottom;
      if (left == right || top == bottom) {
        return;
      }
      let transformedPointLeft = left;
      let transformedPointTop = top;
      let transformedPointRight = right;
      let transformedPointBottom = bottom;
      if (!dart.test(this[_currentMatrixIsIdentity])) {
        _engine._PaintBounds._tempRectData[$_set](0, left);
        _engine._PaintBounds._tempRectData[$_set](1, top);
        _engine._PaintBounds._tempRectData[$_set](2, right);
        _engine._PaintBounds._tempRectData[$_set](3, bottom);
        _engine.transformLTRB(this[_currentMatrix], _engine._PaintBounds._tempRectData);
        transformedPointLeft = _engine._PaintBounds._tempRectData[$_get](0);
        transformedPointTop = _engine._PaintBounds._tempRectData[$_get](1);
        transformedPointRight = _engine._PaintBounds._tempRectData[$_get](2);
        transformedPointBottom = _engine._PaintBounds._tempRectData[$_get](3);
      }
      if (dart.test(this[_didPaintInsideClipArea])) {
        this[_left$0] = math.min(T$.double(), math.min(T$.double(), this[_left$0], transformedPointLeft), transformedPointRight);
        this[_right$0] = math.max(T$.double(), math.max(T$.double(), this[_right$0], transformedPointLeft), transformedPointRight);
        this[_top] = math.min(T$.double(), math.min(T$.double(), this[_top], transformedPointTop), transformedPointBottom);
        this[_bottom] = math.max(T$.double(), math.max(T$.double(), this[_bottom], transformedPointTop), transformedPointBottom);
      } else {
        this[_left$0] = math.min(T$.double(), transformedPointLeft, transformedPointRight);
        this[_right$0] = math.max(T$.double(), transformedPointLeft, transformedPointRight);
        this[_top] = math.min(T$.double(), transformedPointTop, transformedPointBottom);
        this[_bottom] = math.max(T$.double(), transformedPointTop, transformedPointBottom);
      }
      this[_didPaintInsideClipArea] = true;
    }
    saveTransformsAndClip() {
      this[_transforms][$add](this[_currentMatrix].clone());
      this[_clipStack][$add](dart.test(this[_clipRectInitialized]) ? new ui.Rect.fromLTRB(this[_currentClipLeft], this[_currentClipTop], this[_currentClipRight], this[_currentClipBottom]) : null);
    }
    restoreTransformsAndClip() {
      this[_currentMatrix] = this[_transforms][$removeLast]();
      let clipRect = this[_clipStack][$removeLast]();
      if (clipRect != null) {
        this[_currentClipLeft] = clipRect.left;
        this[_currentClipTop] = clipRect.top;
        this[_currentClipRight] = clipRect.right;
        this[_currentClipBottom] = clipRect.bottom;
        this[_clipRectInitialized] = true;
      } else if (dart.test(this[_clipRectInitialized])) {
        this[_clipRectInitialized] = false;
      }
    }
    computeBounds() {
      if (!dart.test(this[_didPaintInsideClipArea])) {
        return ui.Rect.zero;
      }
      let maxLeft = this.maxPaintBounds.left[$isNaN] ? -1 / 0 : this.maxPaintBounds.left;
      let maxRight = this.maxPaintBounds.right[$isNaN] ? 1 / 0 : this.maxPaintBounds.right;
      let maxTop = this.maxPaintBounds.top[$isNaN] ? -1 / 0 : this.maxPaintBounds.top;
      let maxBottom = this.maxPaintBounds.bottom[$isNaN] ? 1 / 0 : this.maxPaintBounds.bottom;
      let left = math.min(T$.double(), this[_left$0], this[_right$0]);
      let right = math.max(T$.double(), this[_left$0], this[_right$0]);
      let top = math.min(T$.double(), this[_top], this[_bottom]);
      let bottom = math.max(T$.double(), this[_top], this[_bottom]);
      if (right < dart.notNull(maxLeft) || bottom < dart.notNull(maxTop)) {
        return ui.Rect.zero;
      }
      return new ui.Rect.fromLTRB(math.max(T$.double(), left, maxLeft), math.max(T$.double(), top, maxTop), math.min(T$.double(), right, maxRight), math.min(T$.double(), bottom, maxBottom));
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        let bounds = this.computeBounds();
        result = "_PaintBounds(" + dart.str(bounds) + " of size " + dart.str(bounds.size) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[300], 2035, 12, "() {\n      final ui.Rect bounds = computeBounds();\n      result = '_PaintBounds($bounds of size ${bounds.size})';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine._PaintBounds.new = function(maxPaintBounds) {
    if (maxPaintBounds == null) dart.nullFailed(I[300], 1711, 21, "maxPaintBounds");
    this[_didPaintInsideClipArea] = false;
    this[_left$0] = 1.7976931348623157e+308;
    this[_top] = 1.7976931348623157e+308;
    this[_right$0] = -1.7976931348623157e+308;
    this[_bottom] = -1.7976931348623157e+308;
    this[_transforms] = G$.JSArrayOfMatrix4().of([]);
    this[_clipStack] = G$.JSArrayOfRectN().of([]);
    this[_currentMatrixIsIdentity] = true;
    this[_currentMatrix] = new _engine.Matrix4.identity();
    this[_clipRectInitialized] = false;
    this[_currentClipLeft] = 0.0;
    this[_currentClipTop] = 0.0;
    this[_currentClipRight] = 0.0;
    this[_currentClipBottom] = 0.0;
    this.maxPaintBounds = maxPaintBounds;
    ;
  }).prototype = _engine._PaintBounds.prototype;
  dart.addRtiResources(_engine._PaintBounds, ["_engine|_PaintBounds"]);
  dart.setMethodSignature(_engine._PaintBounds, () => dart.global.Object.setPrototypeOf({
    translate: T$9.doubleAnddoubleTovoid(),
    scale: T$9.doubleAnddoubleTovoid(),
    rotateZ: T$9.doubleTovoid(),
    transform: T$7.Float32ListTovoid(),
    skew: T$9.doubleAnddoubleTovoid(),
    clipRect: T$11.RectAndDrawCommandTovoid(),
    getDestinationClipBounds: T$11.VoidToRectN(),
    grow: T$11.RectAndDrawCommandTovoid(),
    growLTRB: T$11.doubleAnddoubleAnddouble__Tovoid$5(),
    growBounds: T$9.RectTovoid(),
    saveTransformsAndClip: T$.VoidTovoid(),
    restoreTransformsAndClip: T$.VoidTovoid(),
    computeBounds: T$9.VoidToRect$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._PaintBounds))));
  dart.setLibraryUri(_engine._PaintBounds, I[220]);
  dart.setFieldSignature(_engine._PaintBounds, () => dart.global.Object.setPrototypeOf({
    maxPaintBounds: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_didPaintInsideClipArea]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_left$0]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_top]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_right$0]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_bottom]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_transforms]: {type: T$11.ListOfMatrix4(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_clipStack]: {type: T$11.ListOfRectN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_currentMatrixIsIdentity]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentMatrix]: {type: T$9.Matrix4(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_clipRectInitialized]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentClipLeft]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentClipTop]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentClipRight]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentClipBottom]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._PaintBounds))));
  dart.setStaticFieldSignature(_engine._PaintBounds, () => ['_tempRectData']);
  dart.defineExtensionMethods(_engine._PaintBounds, ['toString']);
  dart.defineLazy(_engine._PaintBounds, {
    /*_engine._PaintBounds._tempRectData*/get _tempRectData() {
      return _native_typed_data.NativeFloat32List.new(4);
    }
  }, false);
  var hasImageElements = dart.privateName(_engine, "RenderStrategy.hasImageElements");
  var hasParagraphs = dart.privateName(_engine, "RenderStrategy.hasParagraphs");
  var hasArbitraryPaint = dart.privateName(_engine, "RenderStrategy.hasArbitraryPaint");
  var isInsideSvgFilterTree = dart.privateName(_engine, "RenderStrategy.isInsideSvgFilterTree");
  _engine.RenderStrategy = class RenderStrategy extends core.Object {
    get hasImageElements() {
      return this[hasImageElements];
    }
    set hasImageElements(value) {
      if (value == null) dart.nullFailed(I[300], 2075, 8, "hasImageElements");
      this[hasImageElements] = value;
    }
    get hasParagraphs() {
      return this[hasParagraphs];
    }
    set hasParagraphs(value) {
      if (value == null) dart.nullFailed(I[300], 2078, 8, "hasParagraphs");
      this[hasParagraphs] = value;
    }
    get hasArbitraryPaint() {
      return this[hasArbitraryPaint];
    }
    set hasArbitraryPaint(value) {
      if (value == null) dart.nullFailed(I[300], 2084, 8, "hasArbitraryPaint");
      this[hasArbitraryPaint] = value;
    }
    get isInsideSvgFilterTree() {
      return this[isInsideSvgFilterTree];
    }
    set isInsideSvgFilterTree(value) {
      if (value == null) dart.nullFailed(I[300], 2091, 8, "isInsideSvgFilterTree");
      this[isInsideSvgFilterTree] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.RenderStrategy.new();
    }
    merge(childStrategy) {
      if (childStrategy == null) dart.nullFailed(I[300], 2094, 29, "childStrategy");
      this.hasImageElements = !!(dart.notNull(this.hasImageElements) | dart.test(childStrategy.hasImageElements));
      this.hasParagraphs = !!(dart.notNull(this.hasParagraphs) | dart.test(childStrategy.hasParagraphs));
      this.hasArbitraryPaint = !!(dart.notNull(this.hasArbitraryPaint) | dart.test(childStrategy.hasArbitraryPaint));
    }
  };
  (_engine.RenderStrategy.new = function() {
    this[hasImageElements] = false;
    this[hasParagraphs] = false;
    this[hasArbitraryPaint] = false;
    this[isInsideSvgFilterTree] = false;
    ;
  }).prototype = _engine.RenderStrategy.prototype;
  dart.addRtiResources(_engine.RenderStrategy, ["_engine|RenderStrategy"]);
  dart.setMethodSignature(_engine.RenderStrategy, () => dart.global.Object.setPrototypeOf({merge: T$11.RenderStrategyTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RenderStrategy))));
  dart.setLibraryUri(_engine.RenderStrategy, I[220]);
  dart.setFieldSignature(_engine.RenderStrategy, () => dart.global.Object.setPrototypeOf({
    hasImageElements: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    hasParagraphs: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    hasArbitraryPaint: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    isInsideSvgFilterTree: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RenderStrategy))));
  var mode$1 = dart.privateName(_engine, "SurfaceVertices.mode");
  var positions$ = dart.privateName(_engine, "SurfaceVertices.positions");
  var colors$3 = dart.privateName(_engine, "SurfaceVertices.colors");
  var indices$ = dart.privateName(_engine, "SurfaceVertices.indices");
  _engine.SurfaceVertices = class SurfaceVertices extends core.Object {
    get mode() {
      return this[mode$1];
    }
    set mode(value) {
      super.mode = value;
    }
    get positions() {
      return this[positions$];
    }
    set positions(value) {
      super.positions = value;
    }
    get colors() {
      return this[colors$3];
    }
    set colors(value) {
      super.colors = value;
    }
    get indices() {
      return this[indices$];
    }
    set indices(value) {
      super.indices = value;
    }
    static ['_#new#tearOff'](mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[301], 13, 10, "mode");
      if (positions == null) dart.nullFailed(I[301], 14, 21, "positions");
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return new _engine.SurfaceVertices.new(mode, positions, {colors: colors, indices: indices});
    }
    static ['_#raw#tearOff'](mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[301], 24, 10, "mode");
      if (positions == null) dart.nullFailed(I[301], 25, 10, "positions");
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return new _engine.SurfaceVertices.raw(mode, positions, {colors: colors, indices: indices});
    }
    static _int32ListFromColors(colors) {
      if (colors == null) dart.nullFailed(I[301], 37, 56, "colors");
      let list = _native_typed_data.NativeInt32List.new(colors[$length]);
      let len = colors[$length];
      for (let i = 0; i < dart.notNull(len); i = i + 1) {
        list[$_set](i, colors[$_get](i).value);
      }
      return list;
    }
    dispose() {
      this[_disposed] = true;
    }
    get debugDisposed() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_disposed];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[301], 56, 12, "() {\n      result = _disposed;\n      return true;\n    }()");
      if (result != null) {
        return dart.nullCheck(result);
      }
      dart.throw(new core.StateError.new("Vertices.debugDisposed is only available when asserts are enabled."));
    }
  };
  (_engine.SurfaceVertices.new = function(mode, positions, opts) {
    if (mode == null) dart.nullFailed(I[301], 13, 10, "mode");
    if (positions == null) dart.nullFailed(I[301], 14, 21, "positions");
    let colors = opts && 'colors' in opts ? opts.colors : null;
    let indices = opts && 'indices' in opts ? opts.indices : null;
    this[_disposed] = false;
    this[mode$1] = mode;
    this[colors$3] = colors != null ? _engine.SurfaceVertices._int32ListFromColors(colors) : null;
    this[indices$] = indices != null ? _native_typed_data.NativeUint16List.fromList(indices) : null;
    this[positions$] = _engine.offsetListToFloat32List(positions);
    _engine.initWebGl();
  }).prototype = _engine.SurfaceVertices.prototype;
  (_engine.SurfaceVertices.raw = function(mode, positions, opts) {
    if (mode == null) dart.nullFailed(I[301], 24, 10, "mode");
    if (positions == null) dart.nullFailed(I[301], 25, 10, "positions");
    let colors = opts && 'colors' in opts ? opts.colors : null;
    let indices = opts && 'indices' in opts ? opts.indices : null;
    this[_disposed] = false;
    this[mode$1] = mode;
    this[positions$] = positions;
    this[colors$3] = colors;
    this[indices$] = indices;
    _engine.initWebGl();
  }).prototype = _engine.SurfaceVertices.prototype;
  dart.addRtiResources(_engine.SurfaceVertices, ["_engine|SurfaceVertices", "ui|Vertices"]);
  dart.setMethodSignature(_engine.SurfaceVertices, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SurfaceVertices))));
  dart.setStaticMethodSignature(_engine.SurfaceVertices, () => ['_int32ListFromColors']);
  dart.setGetterSignature(_engine.SurfaceVertices, () => dart.global.Object.setPrototypeOf({debugDisposed: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SurfaceVertices))));
  dart.setLibraryUri(_engine.SurfaceVertices, I[220]);
  dart.setFieldSignature(_engine.SurfaceVertices, () => dart.global.Object.setPrototypeOf({
    mode: {type: T$8.VertexMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    positions: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    colors: {type: T$11.Int32ListN(), isConst: false, isFinal: true, libraryUri: I[43]},
    indices: {type: T$8.Uint16ListN(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_disposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfaceVertices))));
  _engine.GlRenderer = class GlRenderer extends core.Object {};
  (_engine.GlRenderer.new = function() {
    ;
  }).prototype = _engine.GlRenderer.prototype;
  dart.addRtiResources(_engine.GlRenderer, ["_engine|GlRenderer"]);
  dart.setLibraryUri(_engine.GlRenderer, I[220]);
  var _writeVerticesFragmentShader = dart.privateName(_engine, "_writeVerticesFragmentShader");
  _engine._WebGlRenderer = class _WebGlRenderer extends core.Object {
    drawVertices(context, canvasWidthInPixels, canvasHeightInPixels, transform, vertices, blendMode, paint) {
      if (canvasWidthInPixels == null) dart.nullFailed(I[301], 109, 11, "canvasWidthInPixels");
      if (canvasHeightInPixels == null) dart.nullFailed(I[301], 110, 11, "canvasHeightInPixels");
      if (transform == null) dart.nullFailed(I[301], 111, 15, "transform");
      if (vertices == null) dart.nullFailed(I[301], 112, 23, "vertices");
      if (blendMode == null) dart.nullFailed(I[301], 113, 20, "blendMode");
      if (paint == null) dart.nullFailed(I[301], 114, 24, "paint");
      let positions = vertices.positions;
      let bounds = _engine._computeVerticesBounds(positions, transform);
      let minValueX = bounds.left;
      let minValueY = bounds.top;
      let maxValueX = bounds.right;
      let maxValueY = bounds.bottom;
      let offsetX = 0.0;
      let offsetY = 0.0;
      let widthInPixels = canvasWidthInPixels;
      let heightInPixels = canvasHeightInPixels;
      if (dart.notNull(maxValueX) < 0 || dart.notNull(maxValueY) < 0) {
        return;
      }
      if (dart.notNull(minValueX) > dart.notNull(widthInPixels) || dart.notNull(minValueY) > dart.notNull(heightInPixels)) {
        return;
      }
      if (dart.notNull(maxValueX) - dart.notNull(minValueX) < dart.notNull(widthInPixels) && dart.notNull(maxValueY) - dart.notNull(minValueY) < dart.notNull(heightInPixels)) {
        widthInPixels = maxValueX[$ceil]() - minValueX[$floor]();
        heightInPixels = maxValueY[$ceil]() - minValueY[$floor]();
        offsetX = minValueX[$floor]()[$toDouble]();
        offsetY = minValueY[$floor]()[$toDouble]();
      }
      if (widthInPixels === 0 || heightInPixels === 0) {
        return;
      }
      let isWebGl2 = _engine.webGLVersion === 2;
      let imageShader = paint.shader == null ? null : T$9.EngineImageShader()[_as](dart.nullCheck(paint.shader));
      let vertexShader = imageShader == null ? _engine.VertexShaders.writeBaseVertexShader() : _engine.VertexShaders.writeTextureVertexShader();
      let fragmentShader = imageShader == null ? this[_writeVerticesFragmentShader]() : _engine.FragmentShaders.writeTextureFragmentShader(isWebGl2, imageShader.tileModeX, imageShader.tileModeY);
      let gl = dart.nullCheck(_engine.GlContextCache.createGlContext(widthInPixels, heightInPixels));
      let glProgram = gl.cacheProgram(vertexShader, fragmentShader);
      gl.useProgram(glProgram);
      let positionAttributeLocation = gl.getAttributeLocation(glProgram.program, "position");
      _engine.setupVertexTransforms(gl, glProgram, offsetX, offsetY, widthInPixels[$toDouble](), heightInPixels[$toDouble](), transform);
      if (imageShader != null) {
        _engine.setupTextureTransform(gl, glProgram, 0.0, 0.0, 1.0 / imageShader.image.width[$toDouble](), 1.0 / imageShader.image.height[$toDouble]());
      }
      let positionsBuffer = dart.nullCheck(gl.createBuffer());
      let vao = null;
      if (imageShader != null) {
        if (isWebGl2) {
          vao = gl.createVertexArray();
          gl.bindVertexArray(dart.nullCheck(vao));
        }
      }
      gl.enableVertexAttribArray(positionAttributeLocation);
      gl.bindArrayBuffer(positionsBuffer);
      _engine.bufferVertexData(gl, positions, 1.0);
      _engine.vertexAttribPointerGlContext(gl.glContext, positionAttributeLocation, 2, gl.kFloat, false, 0, 0);
      let vertexCount = (dart.notNull(positions[$length]) / 2)[$truncate]();
      let texture = null;
      if (imageShader == null) {
        let colorsBuffer = gl.createBuffer();
        gl.bindArrayBuffer(colorsBuffer);
        if (vertices.colors == null) {
          let vertexColors = _native_typed_data.NativeUint32List.new(vertexCount);
          for (let i = 0; i < vertexCount; i = i + 1) {
            vertexColors[$_set](i, paint.color);
          }
          gl.bufferData(vertexColors, gl.kStaticDraw);
        } else {
          gl.bufferData(vertices.colors, gl.kStaticDraw);
        }
        let colorLoc = gl.getAttributeLocation(glProgram.program, "color");
        _engine.vertexAttribPointerGlContext(gl.glContext, colorLoc, 4, gl.kUnsignedByte, true, 0, 0);
        gl.enableVertexAttribArray(colorLoc);
      } else {
        texture = gl.createTexture();
        gl.activeTexture(gl.kTexture0);
        gl.bindTexture(gl.kTexture2D, texture);
        gl.texImage2D(gl.kTexture2D, 0, gl.kRGBA, gl.kRGBA, gl.kUnsignedByte, imageShader.image.imgElement);
        if (isWebGl2) {
          gl.texParameteri(gl.kTexture2D, gl.kTextureWrapS, _engine.tileModeToGlWrapping(gl, imageShader.tileModeX));
          gl.texParameteri(gl.kTexture2D, gl.kTextureWrapT, _engine.tileModeToGlWrapping(gl, imageShader.tileModeY));
          gl.generateMipmap(gl.kTexture2D);
        } else {
          gl.texParameteri(gl.kTexture2D, gl.kTextureWrapS, gl.kClampToEdge);
          gl.texParameteri(gl.kTexture2D, gl.kTextureWrapT, gl.kClampToEdge);
          gl.texParameteri(gl.kTexture2D, gl.kTextureMinFilter, gl.kLinear);
        }
      }
      gl.clear();
      let indices = vertices.indices;
      if (indices == null) {
        gl.drawTriangles(vertexCount, vertices.mode);
      } else {
        let indexBuffer = gl.createBuffer();
        gl.bindElementArrayBuffer(indexBuffer);
        gl.bufferElementData(indices, gl.kStaticDraw);
        gl.drawElements(gl.kTriangles, indices[$length], gl.kUnsignedShort);
      }
      if (vao != null) {
        gl.unbindVertexArray();
      }
      dart.nullCheck(context).save();
      context.resetTransform();
      gl.drawImage(context, offsetX, offsetY);
      context.restore();
    }
    drawRect(targetRect, gl, glProgram, gradient, widthInPixels, heightInPixels) {
      if (targetRect == null) dart.nullFailed(I[301], 313, 28, "targetRect");
      if (gl == null) dart.nullFailed(I[301], 313, 50, "gl");
      if (glProgram == null) dart.nullFailed(I[301], 313, 64, "glProgram");
      if (gradient == null) dart.nullFailed(I[301], 314, 26, "gradient");
      if (widthInPixels == null) dart.nullFailed(I[301], 314, 40, "widthInPixels");
      if (heightInPixels == null) dart.nullFailed(I[301], 314, 59, "heightInPixels");
      this.drawRectToGl(targetRect, gl, glProgram, gradient, widthInPixels, heightInPixels);
      let image = gl.readPatternData(gradient.isOpaque);
      gl.bindArrayBuffer(null);
      gl.bindElementArrayBuffer(null);
      return image;
    }
    drawRectToImageUrl(targetRect, gl, glProgram, gradient, widthInPixels, heightInPixels) {
      if (targetRect == null) dart.nullFailed(I[301], 327, 15, "targetRect");
      if (gl == null) dart.nullFailed(I[301], 328, 17, "gl");
      if (glProgram == null) dart.nullFailed(I[301], 329, 17, "glProgram");
      if (gradient == null) dart.nullFailed(I[301], 330, 26, "gradient");
      if (widthInPixels == null) dart.nullFailed(I[301], 331, 11, "widthInPixels");
      if (heightInPixels == null) dart.nullFailed(I[301], 332, 11, "heightInPixels");
      this.drawRectToGl(targetRect, gl, glProgram, gradient, widthInPixels, heightInPixels);
      let imageUrl = gl.toImageUrl();
      gl.bindArrayBuffer(null);
      gl.bindElementArrayBuffer(null);
      return imageUrl;
    }
    drawRectToGl(targetRect, gl, glProgram, gradient, widthInPixels, heightInPixels) {
      if (targetRect == null) dart.nullFailed(I[301], 345, 29, "targetRect");
      if (gl == null) dart.nullFailed(I[301], 345, 51, "gl");
      if (glProgram == null) dart.nullFailed(I[301], 345, 65, "glProgram");
      if (gradient == null) dart.nullFailed(I[301], 346, 26, "gradient");
      if (widthInPixels == null) dart.nullFailed(I[301], 346, 40, "widthInPixels");
      if (heightInPixels == null) dart.nullFailed(I[301], 346, 59, "heightInPixels");
      let left = targetRect.left;
      let top = targetRect.top;
      let right = targetRect.right;
      let bottom = targetRect.bottom;
      let vertices = _native_typed_data.NativeFloat32List.new(8);
      vertices[$_set](0, left);
      vertices[$_set](1, top);
      vertices[$_set](2, right);
      vertices[$_set](3, top);
      vertices[$_set](4, right);
      vertices[$_set](5, bottom);
      vertices[$_set](6, left);
      vertices[$_set](7, bottom);
      let transformUniform = gl.getUniformLocation(glProgram.program, "u_ctransform");
      gl.setUniformMatrix4fv(transformUniform, false, new _engine.Matrix4.identity().storage);
      let resolution = gl.getUniformLocation(glProgram.program, "u_scale");
      gl.setUniform4f(resolution, 2.0 / widthInPixels[$toDouble](), -2.0 / heightInPixels[$toDouble](), 1.0, 1.0);
      let shift = gl.getUniformLocation(glProgram.program, "u_shift");
      gl.setUniform4f(shift, -1.0, 1.0, 0.0, 0.0);
      let positionsBuffer = dart.nullCheck(gl.createBuffer());
      gl.bindArrayBuffer(positionsBuffer);
      gl.bufferData(vertices, gl.kStaticDraw);
      _engine.vertexAttribPointerGlContext(gl.glContext, 0, 2, gl.kFloat, false, 0, 0);
      gl.enableVertexAttribArray(0);
      let colorsBuffer = gl.createBuffer();
      gl.bindArrayBuffer(colorsBuffer);
      let colors = _native_typed_data.NativeInt32List.fromList(G.JSArrayOfint().of([4278255360, 4278190335, 4294967040, 4278255615]));
      gl.bufferData(colors, gl.kStaticDraw);
      _engine.vertexAttribPointerGlContext(gl.glContext, 1, 4, gl.kUnsignedByte, true, 0, 0);
      gl.enableVertexAttribArray(1);
      let indexBuffer = gl.createBuffer();
      gl.bindElementArrayBuffer(indexBuffer);
      gl.bufferElementData(_engine.VertexShaders.vertexIndicesForRect, gl.kStaticDraw);
      if (dart.test(gl.containsUniform(glProgram.program, "u_resolution"))) {
        let uRes = gl.getUniformLocation(glProgram.program, "u_resolution");
        gl.setUniform2f(uRes, widthInPixels[$toDouble](), heightInPixels[$toDouble]());
      }
      gl.clear();
      gl.viewport(0.0, 0.0, widthInPixels[$toDouble](), heightInPixels[$toDouble]());
      gl.drawElements(gl.kTriangles, _engine.VertexShaders.vertexIndicesForRect[$length], gl.kUnsignedShort);
    }
    [_writeVerticesFragmentShader]() {
      let builder = new _engine.ShaderBuilder.fragment(_engine.webGLVersion);
      builder.floatPrecision = 1;
      builder.addIn(11, {name: "v_color"});
      let method = builder.addMethod("main");
      method.addStatement(dart.str(builder.fragmentColor.name) + " = v_color;");
      return builder.build();
    }
    drawHairline(ctx, positions) {
      if (positions == null) dart.nullFailed(I[301], 450, 53, "positions");
      let pointCount = (dart.notNull(positions[$length]) / 2)[$truncate]();
      _engine['DomCanvasRenderingContext2DExtension|set#lineWidth'](dart.nullCheck(ctx), 1.0);
      ctx.beginPath();
      let len = pointCount * 2;
      for (let i = 0; i < len;) {
        for (let triangleVertexIndex = 0; triangleVertexIndex < 3; triangleVertexIndex = triangleVertexIndex + 1, i = i + 2) {
          let dx = positions[$_get](i);
          let dy = positions[$_get](i + 1);
          switch (triangleVertexIndex) {
            case 0:
              {
                _engine['DomCanvasRenderingContext2DExtension|moveTo'](ctx, dx, dy);
                break;
              }
            case 1:
              {
                _engine['DomCanvasRenderingContext2DExtension|lineTo'](ctx, dx, dy);
                break;
              }
            case 2:
              {
                _engine['DomCanvasRenderingContext2DExtension|lineTo'](ctx, dx, dy);
                ctx.closePath();
                ctx.stroke();
              }
          }
        }
      }
    }
    static ['_#new#tearOff']() {
      return new _engine._WebGlRenderer.new();
    }
  };
  (_engine._WebGlRenderer.new = function() {
    ;
  }).prototype = _engine._WebGlRenderer.prototype;
  dart.addRtiResources(_engine._WebGlRenderer, ["_engine|_WebGlRenderer", "_engine|GlRenderer"]);
  dart.setMethodSignature(_engine._WebGlRenderer, () => dart.global.Object.setPrototypeOf({
    drawVertices: T$11.DomCanvasRenderingContext2DNAndintAndint__Tovoid(),
    drawRect: T$11.RectAndGlContextAndGlProgram__ToObjectN(),
    drawRectToImageUrl: T$11.RectAndGlContextAndGlProgram__ToString(),
    drawRectToGl: T$11.RectAndGlContextAndGlProgram__Tovoid(),
    [_writeVerticesFragmentShader]: T$.VoidToString(),
    drawHairline: T$11.DomCanvasRenderingContext2DNAndFloat32ListTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._WebGlRenderer))));
  dart.setLibraryUri(_engine._WebGlRenderer, I[220]);
  var __HtmlRenderer__fontCollection = dart.privateName(_engine, "_#HtmlRenderer#_fontCollection");
  var __HtmlRenderer__fontCollection_isSet = dart.privateName(_engine, "_#HtmlRenderer#_fontCollection#isSet");
  _engine.HtmlRenderer = class HtmlRenderer extends core.Object {
    static get instance() {
      return _engine.HtmlRenderer._instance;
    }
    static get _instance() {
      let t$36549;
      return dart.test(_engine.HtmlRenderer['_#_instance#isSet']) ? (t$36549 = _engine.HtmlRenderer['_#_instance'], t$36549) : dart.throw(new _internal.LateError.fieldNI("_instance"));
    }
    static set _instance(_instance$35param) {
      if (_instance$35param == null) dart.nullFailed(I[302], 10, 28, "_instance#param");
      _engine.HtmlRenderer['_#_instance#isSet'] = true;
      _engine.HtmlRenderer['_#_instance'] = _instance$35param;
    }
    get rendererTag() {
      return "html";
    }
    get [_fontCollection]() {
      let t$36550;
      if (!dart.test(this[__HtmlRenderer__fontCollection_isSet])) {
        let t$36549 = new _engine.HtmlFontCollection.new();
        if (dart.test(this[__HtmlRenderer__fontCollection_isSet])) dart.throw(new _internal.LateError.fieldADI("_fontCollection"));
        this[__HtmlRenderer__fontCollection] = t$36549;
        this[__HtmlRenderer__fontCollection_isSet] = true;
      }
      t$36550 = this[__HtmlRenderer__fontCollection];
      return t$36550;
    }
    get fontCollection() {
      return this[_fontCollection];
    }
    initialize() {
      async.scheduleMicrotask(dart.fn(() => {
        _engine.lineLookup;
      }, T$.VoidTovoid()));
      _engine.HtmlRenderer._instance = this;
    }
    createPaint() {
      return new _engine.SurfacePaint.new();
    }
    createVertices(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[302], 37, 19, "mode");
      if (positions == null) dart.nullFailed(I[302], 38, 21, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return new _engine.SurfaceVertices.new(mode, positions, {colors: colors, indices: indices});
    }
    createVerticesRaw(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[302], 47, 19, "mode");
      if (positions == null) dart.nullFailed(I[302], 48, 17, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      return new _engine.SurfaceVertices.raw(mode, positions, {colors: colors, indices: indices});
    }
    createCanvas(recorder, cullRect = null) {
      if (recorder == null) dart.nullFailed(I[302], 56, 45, "recorder");
      return _engine.SurfaceCanvas.new(T$11.EnginePictureRecorder()[_as](recorder), cullRect);
    }
    createLinearGradient(from, to, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null) {
      if (from == null) dart.nullFailed(I[302], 61, 21, "from");
      if (to == null) dart.nullFailed(I[302], 61, 37, "to");
      if (colors == null) dart.nullFailed(I[302], 61, 56, "colors");
      if (tileMode == null) dart.nullFailed(I[302], 63, 23, "tileMode");
      return new _engine.GradientLinear.new(from, to, colors, colorStops, tileMode, matrix4);
    }
    createRadialGradient(center, radius, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null) {
      if (center == null) dart.nullFailed(I[302], 69, 15, "center");
      if (radius == null) dart.nullFailed(I[302], 70, 12, "radius");
      if (colors == null) dart.nullFailed(I[302], 71, 20, "colors");
      if (tileMode == null) dart.nullFailed(I[302], 73, 17, "tileMode");
      return new _engine.GradientRadial.new(center, radius, colors, colorStops, tileMode, matrix4);
    }
    createConicalGradient(focal, focalRadius, center, radius, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix = null) {
      if (focal == null) dart.nullFailed(I[302], 79, 47, "focal");
      if (focalRadius == null) dart.nullFailed(I[302], 79, 61, "focalRadius");
      if (center == null) dart.nullFailed(I[302], 80, 21, "center");
      if (radius == null) dart.nullFailed(I[302], 80, 36, "radius");
      if (colors == null) dart.nullFailed(I[302], 80, 59, "colors");
      if (tileMode == null) dart.nullFailed(I[302], 82, 23, "tileMode");
      return new _engine.GradientConical.new(focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix);
    }
    createSweepGradient(center, colors, colorStops = null, tileMode = C[586] || CT.C586, startAngle = 0, endAngle = 6.283185307179586, matrix4 = null) {
      if (center == null) dart.nullFailed(I[302], 88, 45, "center");
      if (colors == null) dart.nullFailed(I[302], 88, 68, "colors");
      if (tileMode == null) dart.nullFailed(I[302], 90, 23, "tileMode");
      if (startAngle == null) dart.nullFailed(I[302], 91, 18, "startAngle");
      if (endAngle == null) dart.nullFailed(I[302], 92, 18, "endAngle");
      return new _engine.GradientSweep.new(center, colors, colorStops, tileMode, startAngle, endAngle, matrix4);
    }
    createPictureRecorder() {
      return new _engine.EnginePictureRecorder.new();
    }
    createSceneBuilder() {
      return new _engine.SurfaceSceneBuilder.new();
    }
    createBlurImageFilter(opts) {
      let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : 0;
      if (sigmaX == null) dart.nullFailed(I[302], 106, 19, "sigmaX");
      let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : 0;
      if (sigmaY == null) dart.nullFailed(I[302], 107, 18, "sigmaY");
      let tileMode = opts && 'tileMode' in opts ? opts.tileMode : C[586] || CT.C586;
      if (tileMode == null) dart.nullFailed(I[302], 108, 23, "tileMode");
      return new _engine._BlurEngineImageFilter.new({sigmaX: sigmaX, sigmaY: sigmaY, tileMode: tileMode});
    }
    createDilateImageFilter(opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[302], 114, 15, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[302], 114, 37, "radiusY");
      dart.throw(new core.UnimplementedError.new("ImageFilter.dilate not implemented for HTML renderer."));
    }
    createErodeImageFilter(opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[302], 122, 15, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[302], 122, 37, "radiusY");
      dart.throw(new core.UnimplementedError.new("ImageFilter.erode not implemented for HTML renderer."));
    }
    createMatrixImageFilter(matrix4, opts) {
      if (matrix4 == null) dart.nullFailed(I[302], 129, 54, "matrix4");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[594] || CT.C594;
      if (filterQuality == null) dart.nullFailed(I[302], 130, 29, "filterQuality");
      return new _engine._MatrixEngineImageFilter.new({matrix: matrix4, filterQuality: filterQuality});
    }
    composeImageFilters(opts) {
      let outer = opts && 'outer' in opts ? opts.outer : null;
      if (outer == null) dart.nullFailed(I[302], 135, 32, "outer");
      let inner = opts && 'inner' in opts ? opts.inner : null;
      if (inner == null) dart.nullFailed(I[302], 135, 63, "inner");
      dart.throw(new core.UnimplementedError.new("ImageFilter.erode not implemented for HTML renderer."));
    }
    instantiateImageCodec(list, opts) {
      if (list == null) dart.nullFailed(I[302], 143, 52, "list");
      let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
      let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
      let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
      if (allowUpscaling == null) dart.nullFailed(I[302], 144, 50, "allowUpscaling");
      return async.async(T$9.Codec(), function* instantiateImageCodec() {
        let blob = _engine.createDomBlob([list[$buffer]]);
        return new _engine.HtmlRendererBlobCodec.new(blob);
      });
    }
    instantiateImageCodecFromUrl(uri, opts) {
      if (uri == null) dart.nullFailed(I[302], 151, 9, "uri");
      let chunkCallback = opts && 'chunkCallback' in opts ? opts.chunkCallback : null;
      return async.async(T$9.Codec(), function* instantiateImageCodecFromUrl() {
        return new _engine.HtmlRendererImageCodec.new(dart.toString(uri), {chunkCallback: chunkCallback});
      });
    }
    decodeImageFromPixels(pixels, width, height, format, callback, opts) {
      let t$36550;
      if (pixels == null) dart.nullFailed(I[302], 158, 40, "pixels");
      if (width == null) dart.nullFailed(I[302], 158, 52, "width");
      if (height == null) dart.nullFailed(I[302], 158, 63, "height");
      if (format == null) dart.nullFailed(I[302], 159, 22, "format");
      if (callback == null) dart.nullFailed(I[302], 159, 54, "callback");
      let rowBytes = opts && 'rowBytes' in opts ? opts.rowBytes : null;
      let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
      let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
      let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
      if (allowUpscaling == null) dart.nullFailed(I[302], 163, 12, "allowUpscaling");
      function executeCallback(codec) {
        if (codec == null) dart.nullFailed(I[302], 164, 35, "codec");
        codec.getNextFrame().then(T$.Null(), dart.fn(frameInfo => {
          if (frameInfo == null) dart.nullFailed(I[302], 165, 47, "frameInfo");
          callback(frameInfo.image);
        }, T$11.FrameInfoToNull()));
      }
      dart.fn(executeCallback, T$11.CodecTovoid());
      ui.createBmp(pixels, width, height, (t$36550 = rowBytes, t$36550 == null ? width : t$36550), format).then(T$.void(), executeCallback);
    }
    createImageShader(image, tmx, tmy, matrix4, filterQuality) {
      if (image == null) dart.nullFailed(I[302], 177, 20, "image");
      if (tmx == null) dart.nullFailed(I[302], 178, 23, "tmx");
      if (tmy == null) dart.nullFailed(I[302], 179, 23, "tmy");
      if (matrix4 == null) dart.nullFailed(I[302], 180, 23, "matrix4");
      return new _engine.EngineImageShader.new(image, tmx, tmy, matrix4, filterQuality);
    }
    createPath() {
      return new _engine.SurfacePath.new();
    }
    copyPath(src) {
      if (src == null) dart.nullFailed(I[302], 188, 28, "src");
      return new _engine.SurfacePath.from(T$9.SurfacePath()[_as](src));
    }
    combinePaths(op, path1, path2) {
      if (op == null) dart.nullFailed(I[302], 191, 41, "op");
      if (path1 == null) dart.nullFailed(I[302], 191, 53, "path1");
      if (path2 == null) dart.nullFailed(I[302], 191, 68, "path2");
      dart.throw(new core.UnimplementedError.new("combinePaths not implemented in HTML renderer."));
    }
    createTextStyle(opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      return new _engine.EngineTextStyle.only({color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, leadingDistribution: leadingDistribution, locale: locale, background: background, foreground: foreground, shadows: shadows, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
    createParagraphStyle(opts) {
      let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      let maxLines = opts && 'maxLines' in opts ? opts.maxLines : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let textHeightBehavior = opts && 'textHeightBehavior' in opts ? opts.textHeightBehavior : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let strutStyle = opts && 'strutStyle' in opts ? opts.strutStyle : null;
      let ellipsis = opts && 'ellipsis' in opts ? opts.ellipsis : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      return new _engine.EngineParagraphStyle.new({textAlign: textAlign, textDirection: textDirection, maxLines: maxLines, fontFamily: fontFamily, fontSize: fontSize, height: height, textHeightBehavior: textHeightBehavior, fontWeight: fontWeight, fontStyle: fontStyle, strutStyle: strutStyle, ellipsis: ellipsis, locale: locale});
    }
    createStrutStyle(opts) {
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let leading = opts && 'leading' in opts ? opts.leading : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let forceStrutHeight = opts && 'forceStrutHeight' in opts ? opts.forceStrutHeight : null;
      return new _engine.EngineStrutStyle.new({fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, height: height, leadingDistribution: leadingDistribution, leading: leading, fontWeight: fontWeight, fontStyle: fontStyle, forceStrutHeight: forceStrutHeight});
    }
    createParagraphBuilder(style) {
      if (style == null) dart.nullFailed(I[302], 295, 64, "style");
      return new _engine.CanvasParagraphBuilder.new(T$11.EngineParagraphStyle()[_as](style));
    }
    renderScene(scene, view) {
      if (scene == null) dart.nullFailed(I[302], 299, 37, "scene");
      if (view == null) dart.nullFailed(I[302], 299, 59, "view");
      return async.async(T$.void(), function* renderScene() {
        let t$36550, t$36550$;
        let implicitView = dart.nullCheck(_engine.EnginePlatformDispatcher.instance.implicitView);
        T$11.SurfaceScene()[_as](scene);
        implicitView.dom.setScene(dart.nullCheck(scene.webOnlyRootElement));
        let recorder = scene.timingRecorder;
        t$36550 = recorder;
        t$36550 == null ? null : t$36550.recordRasterFinish();
        t$36550$ = recorder;
        t$36550$ == null ? null : t$36550$.submitTimings();
      });
    }
    clearFragmentProgramCache() {
    }
    createFragmentProgram(assetKey) {
      if (assetKey == null) dart.nullFailed(I[302], 313, 59, "assetKey");
      return G$.FutureOfHtmlFragmentProgram().value(new _engine.HtmlFragmentProgram.new());
    }
    createLineMetrics(opts) {
      let hardBreak = opts && 'hardBreak' in opts ? opts.hardBreak : null;
      if (hardBreak == null) dart.nullFailed(I[302], 319, 26, "hardBreak");
      let ascent = opts && 'ascent' in opts ? opts.ascent : null;
      if (ascent == null) dart.nullFailed(I[302], 320, 27, "ascent");
      let descent = opts && 'descent' in opts ? opts.descent : null;
      if (descent == null) dart.nullFailed(I[302], 321, 27, "descent");
      let unscaledAscent = opts && 'unscaledAscent' in opts ? opts.unscaledAscent : null;
      if (unscaledAscent == null) dart.nullFailed(I[302], 322, 27, "unscaledAscent");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[302], 323, 27, "height");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[302], 324, 27, "width");
      let left = opts && 'left' in opts ? opts.left : null;
      if (left == null) dart.nullFailed(I[302], 325, 27, "left");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[302], 326, 27, "baseline");
      let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
      if (lineNumber == null) dart.nullFailed(I[302], 327, 24, "lineNumber");
      return new _engine.EngineLineMetrics.new({hardBreak: hardBreak, ascent: ascent, descent: descent, unscaledAscent: unscaledAscent, height: height, width: width, left: left, baseline: baseline, lineNumber: lineNumber});
    }
    createImageFromImageBitmap(imageSource) {
      if (imageSource == null) dart.nullFailed(I[302], 341, 22, "imageSource");
      return async.async(T$10.Image(), function* createImageFromImageBitmap() {
        let width = js_interop['JSNumberToNumber|get#toDartInt'](js_util.getProperty(T$.double(), imageSource, "width"));
        let height = js_interop['JSNumberToNumber|get#toDartInt'](js_util.getProperty(T$.double(), imageSource, "height"));
        let canvas = new _engine.OffScreenCanvas.new(width, height);
        let context = dart.nullCheck(canvas.getBitmapRendererContext());
        context.transferFromImageBitmap(imageSource);
        let imageElement = _engine.createDomHTMLImageElement();
        let loadListener = null;
        let t$36$35loadListener$35isSet = false;
        function t$36$35loadListener$35get() {
          return t$36$35loadListener$35isSet ? loadListener : dart.throw(new _internal.LateError.localNI("loadListener"));
        }
        function t$36$35loadListener$35set(loadListener$35param) {
          if (loadListener$35param == null) dart.nullFailed(I[302], 349, 33, "loadListener#param");
          if (t$36$35loadListener$35isSet)
            dart.throw(new _internal.LateError.localAI("loadListener"));
          else {
            t$36$35loadListener$35isSet = true;
            return loadListener = loadListener$35param;
          }
        }
        let errorListener = null;
        let t$36$35errorListener$35isSet = false;
        function t$36$35errorListener$35get() {
          return t$36$35errorListener$35isSet ? errorListener : dart.throw(new _internal.LateError.localNI("errorListener"));
        }
        function t$36$35errorListener$35set(errorListener$35param) {
          if (errorListener$35param == null) dart.nullFailed(I[302], 350, 33, "errorListener#param");
          if (t$36$35errorListener$35isSet)
            dart.throw(new _internal.LateError.localAI("errorListener"));
          else {
            t$36$35errorListener$35isSet = true;
            return errorListener = errorListener$35param;
          }
        }
        let completer = G$.CompleterOfHtmlImage().new();
        t$36$35loadListener$35set(_engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[302], 352, 53, "event");
          completer.complete(new _engine.HtmlImage.new(imageElement, width, height));
          _engine['DomEventTargetExtension|removeEventListener'](imageElement, "load", t$36$35loadListener$35get());
          _engine['DomEventTargetExtension|removeEventListener'](imageElement, "error", t$36$35errorListener$35get());
        }, T$10.DomEventTovoid())));
        t$36$35errorListener$35set(_engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[302], 357, 54, "event");
          completer.completeError(core.Exception.new("Failed to create image from image bitmap."));
          _engine['DomEventTargetExtension|removeEventListener'](imageElement, "load", t$36$35loadListener$35get());
          _engine['DomEventTargetExtension|removeEventListener'](imageElement, "error", t$36$35errorListener$35get());
        }, T$10.DomEventTovoid())));
        _engine['DomEventTargetExtension|addEventListener'](imageElement, "load", t$36$35loadListener$35get());
        _engine['DomEventTargetExtension|addEventListener'](imageElement, "error", t$36$35errorListener$35get());
        _engine['DomHTMLImageElementExtension|set#src'](imageElement, yield canvas.toDataUrl());
        return completer.future;
      });
    }
    createImageFromTextureSource(object, opts) {
      if (object == null) dart.nullFailed(I[302], 370, 57, "object");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[302], 370, 81, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[302], 370, 101, "height");
      let transferOwnership = opts && 'transferOwnership' in opts ? opts.transferOwnership : null;
      if (transferOwnership == null) dart.nullFailed(I[302], 370, 123, "transferOwnership");
      dart.throw(core.Exception.new("Not implemented for HTML renderer"));
    }
    static ['_#new#tearOff']() {
      return new _engine.HtmlRenderer.new();
    }
  };
  (_engine.HtmlRenderer.new = function() {
    this[__HtmlRenderer__fontCollection] = null;
    this[__HtmlRenderer__fontCollection_isSet] = false;
    ;
  }).prototype = _engine.HtmlRenderer.prototype;
  dart.addRtiResources(_engine.HtmlRenderer, ["_engine|HtmlRenderer", "_engine|Renderer"]);
  dart.setMethodSignature(_engine.HtmlRenderer, () => dart.global.Object.setPrototypeOf({
    initialize: T$.VoidTovoid(),
    createPaint: T$8.VoidToPaint(),
    createVertices: T$8.VertexModeAndListOfOffset__ToVertices(),
    createVerticesRaw: T$8.VertexModeAndFloat32List__ToVertices(),
    createCanvas: T$8.PictureRecorderAndRectNToCanvas(),
    createLinearGradient: T$10.OffsetAndOffsetAndListOfColor__ToGradient$1(),
    createRadialGradient: T$10.OffsetAnddoubleAndListOfColor__ToGradient$1(),
    createConicalGradient: T$10.OffsetAnddoubleAndOffset__ToGradient(),
    createSweepGradient: T$10.OffsetAndListOfColorAndListNOfdouble__ToGradient$1(),
    createPictureRecorder: T$8.VoidToPictureRecorder(),
    createSceneBuilder: T$8.VoidToSceneBuilder(),
    createBlurImageFilter: T$9.__ToImageFilter(),
    createDilateImageFilter: T$9.__ToImageFilter$1(),
    createErodeImageFilter: T$9.__ToImageFilter$1(),
    createMatrixImageFilter: T$9.Float64List__ToImageFilter(),
    composeImageFilters: T$9.__ToImageFilter$2(),
    instantiateImageCodec: T$10.Uint8List__ToFutureOfCodec(),
    instantiateImageCodecFromUrl: T$10.Uri__ToFutureOfCodec(),
    decodeImageFromPixels: T$10.Uint8ListAndintAndint__Tovoid(),
    createImageShader: T$10.ImageAndTileModeAndTileMode__ToImageShader$1(),
    createPath: T$9.VoidToPath(),
    copyPath: T$9.PathToPath(),
    combinePaths: T$9.PathOperationAndPathAndPathToPath(),
    createTextStyle: T$9.__ToTextStyle(),
    createParagraphStyle: T$9.__ToParagraphStyle(),
    createStrutStyle: T$9.__ToStrutStyle(),
    createParagraphBuilder: T$9.ParagraphStyleToParagraphBuilder(),
    renderScene: T$10.SceneAndFlutterViewToFutureOfvoid(),
    clearFragmentProgramCache: T$.VoidTovoid(),
    createFragmentProgram: T$9.StringToFutureOfFragmentProgram(),
    createLineMetrics: T$9.__ToLineMetrics(),
    createImageFromImageBitmap: T$11.DomImageBitmapToFutureOfImage(),
    createImageFromTextureSource: T$10.Object__ToFutureOrOfImage()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HtmlRenderer))));
  dart.setGetterSignature(_engine.HtmlRenderer, () => dart.global.Object.setPrototypeOf({
    rendererTag: T$.String(),
    [_fontCollection]: T$11.HtmlFontCollection(),
    fontCollection: T$11.HtmlFontCollection()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.HtmlRenderer))));
  dart.setStaticGetterSignature(_engine.HtmlRenderer, () => ['instance', '_instance']);
  dart.setStaticSetterSignature(_engine.HtmlRenderer, () => ['_instance']);
  dart.setLibraryUri(_engine.HtmlRenderer, I[220]);
  dart.setFieldSignature(_engine.HtmlRenderer, () => dart.global.Object.setPrototypeOf({
    [__HtmlRenderer__fontCollection]: {type: T$11.HtmlFontCollectionN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__HtmlRenderer__fontCollection_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HtmlRenderer))));
  dart.setStaticFieldSignature(_engine.HtmlRenderer, () => ['_#_instance', '_#_instance#isSet']);
  dart.defineLazy(_engine.HtmlRenderer, {
    /*_engine.HtmlRenderer['_#_instance']*/get ['_#_instance']() {
      return null;
    },
    set ['_#_instance'](value) {},
    /*_engine.HtmlRenderer['_#_instance#isSet']*/get ['_#_instance#isSet']() {
      return false;
    },
    set ['_#_instance#isSet'](value) {
      if (value == null) dart.nullFailed(I[302], 10, 28, "_#_instance#isSet");
    }
  }, false);
  var _resourcesHost = dart.privateName(_engine, "_resourcesHost");
  var _domManager$ = dart.privateName(_engine, "_domManager");
  var _getOrCreateResourcesHost = dart.privateName(_engine, "_getOrCreateResourcesHost");
  _engine.ResourceManager = class ResourceManager extends core.Object {
    static ['_#new#tearOff'](_domManager) {
      if (_domManager == null) dart.nullFailed(I[303], 13, 24, "_domManager");
      return new _engine.ResourceManager.new(_domManager);
    }
    static get instance() {
      if (!(_engine.ResourceManager._instance != null)) dart.assertFailed("ResourceManager has not been initialized.", I[303], 21, 12, "_instance != null");
      return dart.nullCheck(_engine.ResourceManager._instance);
    }
    addResource(element) {
      if (element == null) dart.nullFailed(I[303], 35, 31, "element");
      this[_getOrCreateResourcesHost]().append(element);
    }
    [_getOrCreateResourcesHost]() {
      if (this[_resourcesHost] != null) {
        return dart.nullCheck(this[_resourcesHost]);
      }
      let resourcesHost = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-svg-filters");
      _engine['DomCSSStyleDeclarationExtension|set#visibility'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), resourcesHost, "style"), "hidden");
      this[_resourcesHost] = resourcesHost;
      if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
        let rootElement = this[_domManager$].rootElement;
        dart.nullCheck(_engine['DomNodeExtension|get#parent'](rootElement)).prepend(resourcesHost);
      } else {
        let renderingHost = this[_domManager$].renderingHost;
        renderingHost.prepend(resourcesHost);
      }
      return resourcesHost;
    }
    removeResource(element) {
      if (element == null) {
        return;
      }
      if (!dart.equals(js_util.getProperty(T$9.DomNodeN(), element, "parentNode"), this[_resourcesHost])) dart.assertFailed(null, I[303], 64, 12, "element.parentNode == _resourcesHost");
      element.remove();
    }
  };
  (_engine.ResourceManager.new = function(_domManager) {
    if (_domManager == null) dart.nullFailed(I[303], 13, 24, "_domManager");
    this[_resourcesHost] = null;
    this[_domManager$] = _domManager;
    ;
  }).prototype = _engine.ResourceManager.prototype;
  dart.addRtiResources(_engine.ResourceManager, ["_engine|ResourceManager"]);
  dart.setMethodSignature(_engine.ResourceManager, () => dart.global.Object.setPrototypeOf({
    addResource: T$9.DomElementTovoid(),
    [_getOrCreateResourcesHost]: T$10.VoidToDomElement(),
    removeResource: T$11.DomElementNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ResourceManager))));
  dart.setStaticGetterSignature(_engine.ResourceManager, () => ['instance']);
  dart.setLibraryUri(_engine.ResourceManager, I[220]);
  dart.setFieldSignature(_engine.ResourceManager, () => dart.global.Object.setPrototypeOf({
    [_domManager$]: {type: T$11.DomManager(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_resourcesHost]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ResourceManager))));
  dart.setStaticFieldSignature(_engine.ResourceManager, () => ['resourcesHostTagName', '_instance']);
  dart.defineLazy(_engine.ResourceManager, {
    /*_engine.ResourceManager.resourcesHostTagName*/get resourcesHostTagName() {
      return "flt-svg-filters";
    },
    /*_engine.ResourceManager._instance*/get _instance() {
      return null;
    },
    set _instance(value) {}
  }, false);
  var webOnlyRootElement$ = dart.privateName(_engine, "SurfaceScene.webOnlyRootElement");
  var timingRecorder$ = dart.privateName(_engine, "SurfaceScene.timingRecorder");
  _engine.SurfaceScene = class SurfaceScene extends core.Object {
    get webOnlyRootElement() {
      return this[webOnlyRootElement$];
    }
    set webOnlyRootElement(value) {
      super.webOnlyRootElement = value;
    }
    get timingRecorder() {
      return this[timingRecorder$];
    }
    set timingRecorder(value) {
      super.timingRecorder = value;
    }
    static ['_#new#tearOff'](webOnlyRootElement, opts) {
      let timingRecorder = opts && 'timingRecorder' in opts ? opts.timingRecorder : null;
      return new _engine.SurfaceScene.new(webOnlyRootElement, {timingRecorder: timingRecorder});
    }
    toImage(width, height) {
      if (width == null) dart.nullFailed(I[304], 22, 32, "width");
      if (height == null) dart.nullFailed(I[304], 22, 43, "height");
      dart.throw(new core.UnsupportedError.new("toImage is not supported on the Web"));
    }
    toImageSync(width, height) {
      if (width == null) dart.nullFailed(I[304], 27, 28, "width");
      if (height == null) dart.nullFailed(I[304], 27, 39, "height");
      dart.throw(new core.UnsupportedError.new("toImageSync is not supported on the Web"));
    }
    dispose() {
    }
  };
  (_engine.SurfaceScene.new = function(webOnlyRootElement, opts) {
    let timingRecorder = opts && 'timingRecorder' in opts ? opts.timingRecorder : null;
    this[webOnlyRootElement$] = webOnlyRootElement;
    this[timingRecorder$] = timingRecorder;
    ;
  }).prototype = _engine.SurfaceScene.prototype;
  dart.addRtiResources(_engine.SurfaceScene, ["_engine|SurfaceScene", "ui|Scene"]);
  dart.setMethodSignature(_engine.SurfaceScene, () => dart.global.Object.setPrototypeOf({
    toImage: T$10.intAndintToFutureOfImage(),
    toImageSync: T$10.intAndintToImage(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SurfaceScene))));
  dart.setLibraryUri(_engine.SurfaceScene, I[220]);
  dart.setFieldSignature(_engine.SurfaceScene, () => dart.global.Object.setPrototypeOf({
    webOnlyRootElement: {type: T$9.DomElementN(), isConst: false, isFinal: true, libraryUri: I[220]},
    timingRecorder: {type: T$11.FrameTimingRecorderN(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfaceScene))));
  _engine.PersistedScene = class PersistedScene extends _engine.PersistedContainerSurface {
    static ['_#new#tearOff'](oldLayer) {
      return new _engine.PersistedScene.new(oldLayer);
    }
    recomputeTransformAndClip() {
      let browserDpr = _engine.EngineFlutterDisplay.instance.browserDevicePixelRatio;
      let bounds = _engine.window.physicalSize['/'](browserDpr);
      this.localClipBounds = new ui.Rect.fromLTRB(0.0, 0.0, bounds.width, bounds.height);
      this.projectedClip = null;
    }
    get localTransformInverse() {
      let t$36556;
      t$36556 = this[_localTransformInverse];
      return t$36556 == null ? this[_localTransformInverse] = new _engine.Matrix4.identity() : t$36556;
    }
    createElement() {
      return this.defaultCreateElement("flt-scene");
    }
    apply() {
    }
  };
  (_engine.PersistedScene.new = function(oldLayer) {
    this[_localTransformInverse] = null;
    dart.global.Object.getPrototypeOf(_engine.PersistedScene).new.call(this, oldLayer);
    this.transform = new _engine.Matrix4.identity();
  }).prototype = _engine.PersistedScene.prototype;
  dart.addRtiResources(_engine.PersistedScene, ["_engine|PersistedScene"]);
  dart.setMethodSignature(_engine.PersistedScene, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedScene))));
  dart.setLibraryUri(_engine.PersistedScene, I[220]);
  dart.setFieldSignature(_engine.PersistedScene, () => dart.global.Object.setPrototypeOf({[_localTransformInverse]: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedScene))));
  var _surfaceStack = dart.privateName(_engine, "_surfaceStack");
  var _persistedScene = dart.privateName(_engine, "_persistedScene");
  var _currentSurface = dart.privateName(_engine, "_currentSurface");
  var _adoptSurface = dart.privateName(_engine, "_adoptSurface");
  var _pushSurface = dart.privateName(_engine, "_pushSurface");
  var _addSurface = dart.privateName(_engine, "_addSurface");
  var _addPerformanceOverlay = dart.privateName(_engine, "_addPerformanceOverlay");
  var _addTexture = dart.privateName(_engine, "_addTexture");
  var _addPlatformView = dart.privateName(_engine, "_addPlatformView");
  _engine.SurfaceSceneBuilder = class SurfaceSceneBuilder extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.SurfaceSceneBuilder.new();
    }
    get [_persistedScene]() {
      return T$11.PersistedScene()[_as](this[_surfaceStack][$first]);
    }
    get [_currentSurface]() {
      return this[_surfaceStack][$last];
    }
    [_pushSurface](T, surface) {
      if (surface == null) dart.nullFailed(I[305], 27, 57, "surface");
      if (surface.oldLayer != null) {
        if (!dart.equals(dart.runtimeType(dart.nullCheck(surface.oldLayer)), dart.runtimeType(surface))) dart.assertFailed(null, I[305], 31, 14, "surface.oldLayer!.runtimeType == surface.runtimeType");
        if (!dart.test(_engine.debugAssertSurfaceState(dart.nullCheck(surface.oldLayer), _engine.PersistedSurfaceState.active))) dart.assertFailed(null, I[305], 32, 14, "debugAssertSurfaceState(\n          surface.oldLayer!, PersistedSurfaceState.active)");
        dart.nullCheck(surface.oldLayer).state = _engine.PersistedSurfaceState.pendingUpdate;
      }
      this[_adoptSurface](surface);
      this[_surfaceStack][$add](surface);
      return surface;
    }
    debugAddSurface(surface) {
      if (surface == null) dart.nullFailed(I[305], 44, 41, "surface");
      if (!dart.test(dart.fn(() => {
        this[_addSurface](surface);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[305], 45, 12, "() {\n      _addSurface(surface);\n      return true;\n    }()");
    }
    [_addSurface](surface) {
      if (surface == null) dart.nullFailed(I[305], 51, 37, "surface");
      this[_adoptSurface](surface);
    }
    [_adoptSurface](surface) {
      if (surface == null) dart.nullFailed(I[305], 55, 39, "surface");
      this[_currentSurface].appendChild(surface);
    }
    pushOffset(dx, dy, opts) {
      if (dx == null) dart.nullFailed(I[305], 66, 12, "dx");
      if (dy == null) dart.nullFailed(I[305], 67, 12, "dy");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this[_pushSurface](T$10.PersistedOffset(), new _engine.PersistedOffset.new(T$11.PersistedOffsetN()[_as](oldLayer), dx, dy));
    }
    pushTransform(matrix4, opts) {
      if (matrix4 == null) dart.nullFailed(I[305], 81, 17, "matrix4");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      if (matrix4[$length] !== 16) {
        dart.throw(new core.ArgumentError.new("\"matrix4\" must have 16 entries."));
      }
      let matrix = null;
      if (this[_surfaceStack][$length] === 1) {
        if (!dart.test(ui_web.debugEmulateFlutterTesterEnvironment)) {
          if (!(matrix4[$_get](0) == _engine.EngineFlutterDisplay.instance.devicePixelRatio && matrix4[$_get](5) == _engine.EngineFlutterDisplay.instance.devicePixelRatio)) dart.assertFailed(null, I[305], 94, 16, "matrix4[0] == EngineFlutterDisplay.instance.devicePixelRatio &&\n            matrix4[5] == EngineFlutterDisplay.instance.devicePixelRatio");
        }
        matrix = new _engine.Matrix4.identity().storage;
      } else {
        matrix = _engine.toMatrix32(matrix4);
      }
      return this[_pushSurface](T$11.PersistedTransform(), new _engine.PersistedTransform.new(T$11.PersistedTransformN()[_as](oldLayer), matrix));
    }
    pushClipRect(rect, opts) {
      if (rect == null) dart.nullFailed(I[305], 113, 13, "rect");
      let clipBehavior = opts && 'clipBehavior' in opts ? opts.clipBehavior : C[584] || CT.C584;
      if (clipBehavior == null) dart.nullFailed(I[305], 114, 13, "clipBehavior");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this[_pushSurface](T$10.PersistedClipRect(), new _engine.PersistedClipRect.new(T$11.PersistedClipRectN()[_as](oldLayer), rect, clipBehavior));
    }
    pushClipRRect(rrect, opts) {
      if (rrect == null) dart.nullFailed(I[305], 128, 14, "rrect");
      let clipBehavior = opts && 'clipBehavior' in opts ? opts.clipBehavior : null;
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this[_pushSurface](T$10.PersistedClipRRect(), new _engine.PersistedClipRRect.new(oldLayer, rrect, clipBehavior));
    }
    pushClipPath(path, opts) {
      if (path == null) dart.nullFailed(I[305], 143, 13, "path");
      let clipBehavior = opts && 'clipBehavior' in opts ? opts.clipBehavior : C[584] || CT.C584;
      if (clipBehavior == null) dart.nullFailed(I[305], 144, 13, "clipBehavior");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this[_pushSurface](T$10.PersistedClipPath(), new _engine.PersistedClipPath.new(T$11.PersistedClipPathN()[_as](oldLayer), path, clipBehavior));
    }
    pushOpacity(alpha, opts) {
      if (alpha == null) dart.nullFailed(I[305], 161, 9, "alpha");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[305], 162, 15, "offset");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this[_pushSurface](T$10.PersistedOpacity(), new _engine.PersistedOpacity.new(T$11.PersistedOpacityN()[_as](oldLayer), alpha, offset));
    }
    pushColorFilter(filter, opts) {
      if (filter == null) dart.nullFailed(I[305], 181, 20, "filter");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this[_pushSurface](T$10.PersistedColorFilter(), new _engine.PersistedColorFilter.new(T$11.PersistedColorFilterN()[_as](oldLayer), filter));
    }
    pushImageFilter(filter, opts) {
      if (filter == null) dart.nullFailed(I[305], 200, 20, "filter");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[305], 201, 15, "offset");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this[_pushSurface](T$10.PersistedImageFilter(), new _engine.PersistedImageFilter.new(T$11.PersistedImageFilterN()[_as](oldLayer), filter, offset));
    }
    pushBackdropFilter(filter, opts) {
      if (filter == null) dart.nullFailed(I[305], 219, 20, "filter");
      let blendMode = opts && 'blendMode' in opts ? opts.blendMode : C[555] || CT.C555;
      if (blendMode == null) dart.nullFailed(I[305], 220, 18, "blendMode");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this[_pushSurface](T$10.PersistedBackdropFilter(), new _engine.PersistedBackdropFilter.new(T$11.PersistedBackdropFilterN()[_as](oldLayer), filter));
    }
    pushShaderMask(shader, maskRect, blendMode, opts) {
      if (shader == null) dart.nullFailed(I[305], 235, 15, "shader");
      if (maskRect == null) dart.nullFailed(I[305], 236, 13, "maskRect");
      if (blendMode == null) dart.nullFailed(I[305], 237, 18, "blendMode");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[594] || CT.C594;
      if (filterQuality == null) dart.nullFailed(I[305], 239, 22, "filterQuality");
      return this[_pushSurface](T$11.PersistedShaderMask(), new _engine.PersistedShaderMask.new(T$11.PersistedShaderMaskN()[_as](oldLayer), shader, maskRect, blendMode, filterQuality));
    }
    addRetained(retainedLayer) {
      if (retainedLayer == null) dart.nullFailed(I[305], 255, 35, "retainedLayer");
      let retainedSurface = T$10.PersistedContainerSurface()[_as](retainedLayer);
      if (!dart.test(_engine.debugAssertSurfaceState(retainedSurface, _engine.PersistedSurfaceState.active, _engine.PersistedSurfaceState.released))) dart.assertFailed(null, I[305], 258, 12, "debugAssertSurfaceState(retainedSurface,\n      PersistedSurfaceState.active,\n      PersistedSurfaceState.released,\n    )");
      retainedSurface.tryRetain();
      this[_adoptSurface](retainedSurface);
    }
    pop() {
      if (!dart.test(this[_surfaceStack][$isNotEmpty])) dart.assertFailed(null, I[305], 274, 12, "_surfaceStack.isNotEmpty");
      this[_surfaceStack][$removeLast]();
    }
    addPerformanceOverlay(enabledOptions, bounds) {
      if (enabledOptions == null) dart.nullFailed(I[305], 301, 34, "enabledOptions");
      if (bounds == null) dart.nullFailed(I[305], 301, 58, "bounds");
      this[_addPerformanceOverlay](enabledOptions, bounds.left, bounds.right, bounds.top, bounds.bottom);
    }
    [_addPerformanceOverlay](enabledOptions, left, right, top, bottom) {
      if (enabledOptions == null) dart.nullFailed(I[305], 313, 9, "enabledOptions");
      if (left == null) dart.nullFailed(I[305], 314, 12, "left");
      if (right == null) dart.nullFailed(I[305], 315, 12, "right");
      if (top == null) dart.nullFailed(I[305], 316, 12, "top");
      if (bottom == null) dart.nullFailed(I[305], 317, 12, "bottom");
      if (!dart.test(_engine.SurfaceSceneBuilder._didWarnAboutPerformanceOverlay)) {
        _engine.SurfaceSceneBuilder._didWarnAboutPerformanceOverlay = true;
        _engine.printWarning("The performance overlay isn't supported on the web");
      }
    }
    addPicture(offset, picture, opts) {
      if (offset == null) dart.nullFailed(I[305], 330, 15, "offset");
      if (picture == null) dart.nullFailed(I[305], 331, 16, "picture");
      let isComplexHint = opts && 'isComplexHint' in opts ? opts.isComplexHint : false;
      if (isComplexHint == null) dart.nullFailed(I[305], 332, 10, "isComplexHint");
      let willChangeHint = opts && 'willChangeHint' in opts ? opts.willChangeHint : false;
      if (willChangeHint == null) dart.nullFailed(I[305], 333, 10, "willChangeHint");
      let hints = 0;
      if (dart.test(isComplexHint)) {
        hints = (hints | 1) >>> 0;
      }
      if (dart.test(willChangeHint)) {
        hints = (hints | 2) >>> 0;
      }
      this[_addSurface](new _engine.PersistedPicture.new(offset.dx, offset.dy, T$11.EnginePicture()[_as](picture), hints));
    }
    addTexture(textureId, opts) {
      if (textureId == null) dart.nullFailed(I[305], 352, 9, "textureId");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[305], 353, 15, "offset");
      let width = opts && 'width' in opts ? opts.width : 0;
      if (width == null) dart.nullFailed(I[305], 354, 12, "width");
      let height = opts && 'height' in opts ? opts.height : 0;
      if (height == null) dart.nullFailed(I[305], 355, 12, "height");
      let freeze = opts && 'freeze' in opts ? opts.freeze : false;
      if (freeze == null) dart.nullFailed(I[305], 356, 10, "freeze");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[594] || CT.C594;
      if (filterQuality == null) dart.nullFailed(I[305], 357, 22, "filterQuality");
      this[_addTexture](offset.dx, offset.dy, width, height, textureId, filterQuality);
    }
    [_addTexture](dx, dy, width, height, textureId, filterQuality) {
      if (dx == null) dart.nullFailed(I[305], 362, 27, "dx");
      if (dy == null) dart.nullFailed(I[305], 362, 38, "dy");
      if (width == null) dart.nullFailed(I[305], 362, 49, "width");
      if (height == null) dart.nullFailed(I[305], 362, 63, "height");
      if (textureId == null) dart.nullFailed(I[305], 363, 11, "textureId");
      if (filterQuality == null) dart.nullFailed(I[305], 363, 39, "filterQuality");
      if (!dart.test(ui_web.debugEmulateFlutterTesterEnvironment)) {
        dart.throw(new core.UnimplementedError.new("Textures are not supported in Flutter Web"));
      }
    }
    addPlatformView(viewId, opts) {
      if (viewId == null) dart.nullFailed(I[305], 388, 9, "viewId");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[305], 389, 15, "offset");
      let width = opts && 'width' in opts ? opts.width : 0;
      if (width == null) dart.nullFailed(I[305], 390, 12, "width");
      let height = opts && 'height' in opts ? opts.height : 0;
      if (height == null) dart.nullFailed(I[305], 391, 12, "height");
      this[_addPlatformView](offset.dx, offset.dy, width, height, viewId);
    }
    [_addPlatformView](dx, dy, width, height, viewId) {
      if (dx == null) dart.nullFailed(I[305], 397, 12, "dx");
      if (dy == null) dart.nullFailed(I[305], 398, 12, "dy");
      if (width == null) dart.nullFailed(I[305], 399, 12, "width");
      if (height == null) dart.nullFailed(I[305], 400, 12, "height");
      if (viewId == null) dart.nullFailed(I[305], 401, 9, "viewId");
      this[_addSurface](new _engine.PersistedPlatformView.new(viewId, dx, dy, width, height));
    }
    static get debugLastFrameScene() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = _engine.SurfaceSceneBuilder._lastFrameScene;
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[305], 418, 12, "() {\n      result = _lastFrameScene;\n      return true;\n    }()");
      return result;
    }
    static debugForgetFrameScene() {
      let t$36557, t$36556;
      t$36556 = _engine.SurfaceSceneBuilder._lastFrameScene;
      t$36556 == null ? null : (t$36557 = t$36556.rootElement, t$36557 == null ? null : t$36557.remove());
      _engine.SurfaceSceneBuilder._lastFrameScene = null;
      _engine.resetSvgClipIds();
      _engine.recycledCanvases[$clear]();
    }
    build() {
      let t$36556, t$36556$;
      let recorder = dart.test(_engine.FrameTimingRecorder.frameTimingsEnabled) ? new _engine.FrameTimingRecorder.new() : null;
      t$36556 = recorder;
      t$36556 == null ? null : t$36556.recordBuildFinish();
      t$36556$ = recorder;
      t$36556$ == null ? null : t$36556$.recordRasterStart();
      _engine.timeAction(T$.void(), "preroll_frame", dart.fn(() => {
        while (dart.notNull(this[_surfaceStack][$length]) > 1) {
          this.pop();
        }
        this[_persistedScene].preroll(new _engine.PrerollSurfaceContext.new());
      }, T$.VoidTovoid()));
      return _engine.timeAction(T$11.SurfaceScene(), "apply_frame", dart.fn(() => {
        if (_engine.SurfaceSceneBuilder._lastFrameScene == null) {
          this[_persistedScene].build();
        } else {
          this[_persistedScene].update(dart.nullCheck(_engine.SurfaceSceneBuilder._lastFrameScene));
        }
        _engine.commitScene(this[_persistedScene]);
        _engine.SurfaceSceneBuilder._lastFrameScene = this[_persistedScene];
        return new _engine.SurfaceScene.new(this[_persistedScene].rootElement, {timingRecorder: recorder});
      }, T$11.VoidToSurfaceScene()));
    }
    setProperties(width, height, insetTop, insetRight, insetBottom, insetLeft, focusable) {
      if (width == null) dart.nullFailed(I[305], 482, 12, "width");
      if (height == null) dart.nullFailed(I[305], 483, 12, "height");
      if (insetTop == null) dart.nullFailed(I[305], 484, 12, "insetTop");
      if (insetRight == null) dart.nullFailed(I[305], 485, 12, "insetRight");
      if (insetBottom == null) dart.nullFailed(I[305], 486, 12, "insetBottom");
      if (insetLeft == null) dart.nullFailed(I[305], 487, 12, "insetLeft");
      if (focusable == null) dart.nullFailed(I[305], 488, 10, "focusable");
      dart.throw(new core.UnimplementedError.new());
    }
  };
  (_engine.SurfaceSceneBuilder.new = function() {
    this[_surfaceStack] = G$.JSArrayOfPersistedContainerSurface().of([]);
    this[_surfaceStack][$add](new _engine.PersistedScene.new(_engine.SurfaceSceneBuilder._lastFrameScene));
  }).prototype = _engine.SurfaceSceneBuilder.prototype;
  dart.addRtiResources(_engine.SurfaceSceneBuilder, ["_engine|SurfaceSceneBuilder", "ui|SceneBuilder"]);
  dart.setMethodSignature(_engine.SurfaceSceneBuilder, () => dart.global.Object.setPrototypeOf({
    [_pushSurface]: T$11.TToT$3(),
    debugAddSurface: T$10.PersistedSurfaceTovoid(),
    [_addSurface]: T$10.PersistedSurfaceTovoid(),
    [_adoptSurface]: T$10.PersistedSurfaceTovoid(),
    pushOffset: T$11.doubleAnddouble__ToOffsetEngineLayer$1(),
    pushTransform: T$11.Float64List__ToTransformEngineLayer$1(),
    pushClipRect: T$11.Rect__ToClipRectEngineLayer$1(),
    pushClipRRect: T$11.RRect__ToClipRRectEngineLayer$1(),
    pushClipPath: T$11.Path__ToClipPathEngineLayer$1(),
    pushOpacity: T$11.int__ToOpacityEngineLayer$1(),
    pushColorFilter: T$11.ColorFilter__ToColorFilterEngineLayer$1(),
    pushImageFilter: T$11.ImageFilter__ToImageFilterEngineLayer$1(),
    pushBackdropFilter: T$11.ImageFilter__ToBackdropFilterEngineLayer$1(),
    pushShaderMask: T$11.ShaderAndRectAndBlendMode__ToShaderMaskEngineLayer$1(),
    addRetained: T$10.EngineLayerTovoid(),
    pop: T$.VoidTovoid(),
    addPerformanceOverlay: T$10.intAndRectTovoid(),
    [_addPerformanceOverlay]: T$11.intAnddoubleAnddouble__Tovoid(),
    addPicture: T$10.OffsetAndPicture__Tovoid(),
    addTexture: T$10.int__Tovoid(),
    [_addTexture]: T$11.doubleAnddoubleAnddouble__Tovoid$6(),
    addPlatformView: T$10.int__Tovoid$1(),
    [_addPlatformView]: T$11.doubleAnddoubleAnddouble__Tovoid$7(),
    build: T$11.VoidToSurfaceScene(),
    setProperties: T$10.doubleAnddoubleAnddouble__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SurfaceSceneBuilder))));
  dart.setMethodsDefaultTypeArgSignature(_engine.SurfaceSceneBuilder, () => dart.global.Object.setPrototypeOf({[_pushSurface]: [T$10.PersistedContainerSurface()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_engine.SurfaceSceneBuilder))));
  dart.setStaticMethodSignature(_engine.SurfaceSceneBuilder, () => ['debugForgetFrameScene']);
  dart.setGetterSignature(_engine.SurfaceSceneBuilder, () => dart.global.Object.setPrototypeOf({
    [_persistedScene]: T$11.PersistedScene(),
    [_currentSurface]: T$10.PersistedContainerSurface()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SurfaceSceneBuilder))));
  dart.setStaticGetterSignature(_engine.SurfaceSceneBuilder, () => ['debugLastFrameScene']);
  dart.setLibraryUri(_engine.SurfaceSceneBuilder, I[220]);
  dart.setFieldSignature(_engine.SurfaceSceneBuilder, () => dart.global.Object.setPrototypeOf({[_surfaceStack]: {type: T$11.ListOfPersistedContainerSurface(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfaceSceneBuilder))));
  dart.setStaticFieldSignature(_engine.SurfaceSceneBuilder, () => ['_didWarnAboutPerformanceOverlay', '_lastFrameScene']);
  dart.defineLazy(_engine.SurfaceSceneBuilder, {
    /*_engine.SurfaceSceneBuilder._didWarnAboutPerformanceOverlay*/get _didWarnAboutPerformanceOverlay() {
      return false;
    },
    set _didWarnAboutPerformanceOverlay(value) {
      if (value == null) dart.nullFailed(I[305], 310, 15, "_didWarnAboutPerformanceOverlay");
    },
    /*_engine.SurfaceSceneBuilder._lastFrameScene*/get _lastFrameScene() {
      return null;
    },
    set _lastFrameScene(value) {}
  }, false);
  var shader$0 = dart.privateName(_engine, "PersistedShaderMask.shader");
  var maskRect$0 = dart.privateName(_engine, "PersistedShaderMask.maskRect");
  var blendMode$5 = dart.privateName(_engine, "PersistedShaderMask.blendMode");
  var filterQuality$1 = dart.privateName(_engine, "PersistedShaderMask.filterQuality");
  var isWebKit = dart.privateName(_engine, "PersistedShaderMask.isWebKit");
  var _shaderElement = dart.privateName(_engine, "_shaderElement");
  var _applyGradientShader = dart.privateName(_engine, "_applyGradientShader");
  _engine.PersistedShaderMask = class PersistedShaderMask extends _engine.PersistedContainerSurface {
    get shader() {
      return this[shader$0];
    }
    set shader(value) {
      super.shader = value;
    }
    get maskRect() {
      return this[maskRect$0];
    }
    set maskRect(value) {
      super.maskRect = value;
    }
    get blendMode() {
      return this[blendMode$5];
    }
    set blendMode(value) {
      super.blendMode = value;
    }
    get filterQuality() {
      return this[filterQuality$1];
    }
    set filterQuality(value) {
      super.filterQuality = value;
    }
    get isWebKit() {
      return this[isWebKit];
    }
    set isWebKit(value) {
      super.isWebKit = value;
    }
    static ['_#new#tearOff'](oldLayer, shader, maskRect, blendMode, filterQuality) {
      if (shader == null) dart.nullFailed(I[306], 23, 10, "shader");
      if (maskRect == null) dart.nullFailed(I[306], 24, 10, "maskRect");
      if (blendMode == null) dart.nullFailed(I[306], 25, 10, "blendMode");
      if (filterQuality == null) dart.nullFailed(I[306], 26, 10, "filterQuality");
      return new _engine.PersistedShaderMask.new(oldLayer, shader, maskRect, blendMode, filterQuality);
    }
    adoptElements(oldSurface) {
      T$11.PersistedShaderMask()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[306], 38, 42, "oldSurface");
      super.adoptElements(oldSurface);
      this[_childContainer] = oldSurface[_childContainer];
      this[_shaderElement] = oldSurface[_shaderElement];
      oldSurface[_childContainer] = null;
      oldSurface[_shaderElement] = null;
    }
    get childContainer() {
      return this[_childContainer];
    }
    discard() {
      super.discard();
      _engine.ResourceManager.instance.removeResource(this[_shaderElement]);
      this[_shaderElement] = null;
      this[_childContainer] = null;
    }
    preroll(prerollContext) {
      let t$36556, t$36556$;
      if (prerollContext == null) dart.nullFailed(I[306], 61, 38, "prerollContext");
      t$36556 = prerollContext;
      t$36556.activeShaderMaskCount = dart.notNull(t$36556.activeShaderMaskCount) + 1;
      super.preroll(prerollContext);
      t$36556$ = prerollContext;
      t$36556$.activeShaderMaskCount = dart.notNull(t$36556$.activeShaderMaskCount) - 1;
    }
    createElement() {
      let element = this.defaultCreateElement("flt-shader-mask");
      let container = _engine.createDomElement("flt-mask-interior");
      _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), container, "style"), "absolute");
      this[_childContainer] = container;
      element.append(dart.nullCheck(this[_childContainer]));
      return element;
    }
    apply() {
      let t$36556, t$36556$;
      _engine.ResourceManager.instance.removeResource(this[_shaderElement]);
      this[_shaderElement] = null;
      if (T$11.Gradient()[_is](this.shader)) {
        t$36556 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#left'](t$36556, dart.str(this.maskRect.left) + "px");
          _engine['DomCSSStyleDeclarationExtension|set#top'](t$36556, dart.str(this.maskRect.top) + "px");
          _engine['DomCSSStyleDeclarationExtension|set#width'](t$36556, dart.str(this.maskRect.width) + "px");
          _engine['DomCSSStyleDeclarationExtension|set#height'](t$36556, dart.str(this.maskRect.height) + "px");
          return t$36556;
        })();
        t$36556$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_childContainer]), "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#left'](t$36556$, dart.strSafe(-dart.notNull(this.maskRect.left)) + "px");
          _engine['DomCSSStyleDeclarationExtension|set#top'](t$36556$, dart.strSafe(-dart.notNull(this.maskRect.top)) + "px");
          return t$36556$;
        })();
        if (dart.notNull(this.maskRect.width) > 0 && dart.notNull(this.maskRect.height) > 0) {
          this[_applyGradientShader]();
        }
        return;
      }
      dart.throw(core.Exception.new("Shader type not supported for ShaderMask"));
    }
    [_applyGradientShader]() {
      let t$36556;
      if (T$9.EngineGradient()[_is](this.shader)) {
        let gradientShader = T$9.EngineGradient()[_as](this.shader);
        let translatedRect = this.maskRect.translate(-dart.notNull(this.maskRect.left), -dart.notNull(this.maskRect.top));
        let imageUrl = T$.String()[_as](gradientShader.createImageBitmap(translatedRect, 1.0, true));
        let blendModeTemp = this.blendMode;
        switch (blendModeTemp) {
          case C[552] || CT.C552:
          case C[560] || CT.C560:
          case C[559] || CT.C559:
            {
              t$36556 = this.childContainer;
              t$36556 == null ? null : _engine['DomCSSStyleDeclarationExtension|set#visibility'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36556, "style"), "hidden");
              return;
            }
          case C[554] || CT.C554:
          case C[558] || CT.C558:
            {
              _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style"), "");
              return;
            }
          case C[555] || CT.C555:
            {
              blendModeTemp = ui.BlendMode.srcIn;
              break;
            }
          case C[553] || CT.C553:
          case C[556] || CT.C556:
          case C[557] || CT.C557:
          case C[561] || CT.C561:
          case C[562] || CT.C562:
          case C[563] || CT.C563:
          case C[564] || CT.C564:
          case C[565] || CT.C565:
          case C[566] || CT.C566:
          case C[567] || CT.C567:
          case C[568] || CT.C568:
          case C[569] || CT.C569:
          case C[570] || CT.C570:
          case C[571] || CT.C571:
          case C[572] || CT.C572:
          case C[573] || CT.C573:
          case C[574] || CT.C574:
          case C[575] || CT.C575:
          case C[576] || CT.C576:
          case C[577] || CT.C577:
          case C[578] || CT.C578:
          case C[579] || CT.C579:
          case C[580] || CT.C580:
            {
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
        }
        let svgFilter = _engine.svgMaskFilterFromImageAndBlendMode(imageUrl, blendModeTemp, this.maskRect.width, this.maskRect.height);
        this[_shaderElement] = svgFilter.element;
        if (dart.test(this.isWebKit)) {
          _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_childContainer]), "style"), "url(#" + dart.str(svgFilter.id) + ")");
        } else {
          _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style"), "url(#" + dart.str(svgFilter.id) + ")");
        }
        _engine.ResourceManager.instance.addResource(dart.nullCheck(this[_shaderElement]));
      }
    }
    update(oldSurface) {
      T$11.PersistedShaderMask()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[306], 167, 35, "oldSurface");
      super.update(oldSurface);
      if (!dart.equals(this.shader, oldSurface.shader) || !dart.equals(this.maskRect, oldSurface.maskRect) || this.blendMode != oldSurface.blendMode) {
        this.apply();
      }
    }
  };
  (_engine.PersistedShaderMask.new = function(oldLayer, shader, maskRect, blendMode, filterQuality) {
    if (shader == null) dart.nullFailed(I[306], 23, 10, "shader");
    if (maskRect == null) dart.nullFailed(I[306], 24, 10, "maskRect");
    if (blendMode == null) dart.nullFailed(I[306], 25, 10, "blendMode");
    if (filterQuality == null) dart.nullFailed(I[306], 26, 10, "filterQuality");
    this[_childContainer] = null;
    this[_shaderElement] = null;
    this[isWebKit] = ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit;
    this[shader$0] = shader;
    this[maskRect$0] = maskRect;
    this[blendMode$5] = blendMode;
    this[filterQuality$1] = filterQuality;
    dart.global.Object.getPrototypeOf(_engine.PersistedShaderMask).new.call(this, oldLayer);
    ;
  }).prototype = _engine.PersistedShaderMask.prototype;
  dart.addRtiResources(_engine.PersistedShaderMask, ["_engine|PersistedShaderMask", "ui|ShaderMaskEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedShaderMask, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid(),
    [_applyGradientShader]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedShaderMask))));
  dart.setLibraryUri(_engine.PersistedShaderMask, I[220]);
  dart.setFieldSignature(_engine.PersistedShaderMask, () => dart.global.Object.setPrototypeOf({
    [_childContainer]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    shader: {type: T$10.Shader(), isConst: false, isFinal: true, libraryUri: I[198]},
    maskRect: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    blendMode: {type: T$8.BlendMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    filterQuality: {type: T$9.FilterQuality(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_shaderElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    isWebKit: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedShaderMask))));
  var tileModeX$0 = dart.privateName(_engine, "EngineImageShader.tileModeX");
  var tileModeY$0 = dart.privateName(_engine, "EngineImageShader.tileModeY");
  var matrix4$4 = dart.privateName(_engine, "EngineImageShader.matrix4");
  var filterQuality$2 = dart.privateName(_engine, "EngineImageShader.filterQuality");
  var image$1 = dart.privateName(_engine, "EngineImageShader.image");
  var requiresTileOffset = dart.privateName(_engine, "EngineImageShader.requiresTileOffset");
  var _resolveTiledImageSource = dart.privateName(_engine, "_resolveTiledImageSource");
  var _tileModeToHtmlRepeatAttribute = dart.privateName(_engine, "_tileModeToHtmlRepeatAttribute");
  var _createGlShader = dart.privateName(_engine, "_createGlShader");
  _engine.EngineImageShader = class EngineImageShader extends core.Object {
    get tileModeX() {
      return this[tileModeX$0];
    }
    set tileModeX(value) {
      super.tileModeX = value;
    }
    get tileModeY() {
      return this[tileModeY$0];
    }
    set tileModeY(value) {
      super.tileModeY = value;
    }
    get matrix4() {
      return this[matrix4$4];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    get filterQuality() {
      return this[filterQuality$2];
    }
    set filterQuality(value) {
      super.filterQuality = value;
    }
    get image() {
      return this[image$1];
    }
    set image(value) {
      super.image = value;
    }
    get requiresTileOffset() {
      return this[requiresTileOffset];
    }
    set requiresTileOffset(value) {
      if (value == null) dart.nullFailed(I[307], 22, 8, "requiresTileOffset");
      this[requiresTileOffset] = value;
    }
    static ['_#new#tearOff'](image, tileModeX, tileModeY, matrix4, filterQuality) {
      if (image == null) dart.nullFailed(I[307], 10, 30, "image");
      if (tileModeX == null) dart.nullFailed(I[307], 10, 42, "tileModeX");
      if (tileModeY == null) dart.nullFailed(I[307], 10, 58, "tileModeY");
      if (matrix4 == null) dart.nullFailed(I[307], 11, 19, "matrix4");
      return new _engine.EngineImageShader.new(image, tileModeX, tileModeY, matrix4, filterQuality);
    }
    createPaintStyle(context, shaderBounds, density) {
      if (context == null) dart.nullFailed(I[307], 24, 55, "context");
      if (density == null) dart.nullFailed(I[307], 25, 37, "density");
      let tileX = this.tileModeX;
      let tileY = this.tileModeY;
      if (tileX != ui.TileMode.clamp && tileY != ui.TileMode.clamp) {
        return dart.nullCheck(_engine['DomCanvasRenderingContext2DExtension|createPattern'](context, dart.nullCheck(this[_resolveTiledImageSource](this.image, tileX, tileY)), this[_tileModeToHtmlRepeatAttribute](tileX, tileY)));
      } else {
        _engine.initWebGl();
        return this[_createGlShader](context, dart.nullCheck(shaderBounds), density);
      }
    }
    [_tileModeToHtmlRepeatAttribute](tileModeX, tileModeY) {
      if (tileModeX == null) dart.nullFailed(I[307], 46, 19, "tileModeX");
      if (tileModeY == null) dart.nullFailed(I[307], 46, 42, "tileModeY");
      let repeatX = tileModeX == ui.TileMode.repeated || tileModeX == ui.TileMode.mirror;
      let repeatY = tileModeY == ui.TileMode.repeated || tileModeY == ui.TileMode.mirror;
      return repeatX ? repeatY ? "repeat" : "repeat-x" : repeatY ? "repeat-y" : "no-repeat";
    }
    [_resolveTiledImageSource](image, tileX, tileY) {
      if (image == null) dart.nullFailed(I[307], 64, 17, "image");
      if (tileX == null) dart.nullFailed(I[307], 64, 36, "tileX");
      if (tileY == null) dart.nullFailed(I[307], 64, 55, "tileY");
      let mirrorX = tileX == ui.TileMode.mirror ? 2 : 1;
      let mirrorY = tileY == ui.TileMode.mirror ? 2 : 1;
      if (mirrorX === 1 && mirrorY === 1) {
        return image.imgElement;
      }
      let imageWidth = image.width;
      let imageHeight = image.height;
      let newWidth = dart.notNull(imageWidth) * mirrorX;
      let newHeight = dart.notNull(imageHeight) * mirrorY;
      let offscreenCanvas = new _engine.OffScreenCanvas.new(newWidth, newHeight);
      let renderContext = dart.nullCheck(offscreenCanvas.getContext2d());
      for (let y = 0; y < mirrorY; y = y + 1) {
        for (let x = 0; x < mirrorX; x = x + 1) {
          let flipX = x !== 0 ? -1 : 1;
          let flipY = y !== 0 ? -1 : 1;
          if (flipX !== 1 || flipY !== 1) {
            _engine.scaleCanvas2D(renderContext, flipX, flipY);
          }
          _engine.drawImageCanvas2D(renderContext, image.imgElement, x === 0 ? 0 : -2 * dart.notNull(imageWidth), y === 0 ? 0 : -2 * dart.notNull(imageHeight));
          if (flipX !== 1 || flipY !== 1) {
            _engine.scaleCanvas2D(renderContext, flipX, flipY);
          }
        }
      }
      if (dart.test(_engine.OffScreenCanvas.supported) && dart.test(offscreenCanvas.transferToImageBitmapSupported)) {
        return offscreenCanvas.transferToImageBitmap();
      } else {
        let canvas = _engine.createDomCanvasElement({width: newWidth, height: newHeight});
        let ctx = _engine['DomCanvasElementExtension|get#context2D'](canvas);
        offscreenCanvas.transferImage(ctx);
        return canvas;
      }
    }
    [_createGlShader](context, shaderBounds, density) {
      if (shaderBounds == null) dart.nullFailed(I[307], 120, 15, "shaderBounds");
      if (density == null) dart.nullFailed(I[307], 120, 36, "density");
      let transform = new _engine.Matrix4.fromFloat32List(this.matrix4);
      let dpr = ui.window.devicePixelRatio;
      let widthInPixels = (dart.notNull(shaderBounds.width) * dart.notNull(dpr))[$ceil]();
      let heightInPixels = (dart.notNull(shaderBounds.height) * dart.notNull(dpr))[$ceil]();
      if (!(widthInPixels > 0 && heightInPixels > 0)) dart.assertFailed(null, I[307], 127, 12, "widthInPixels > 0 && heightInPixels > 0");
      let isWebGl2 = _engine.webGLVersion === 2;
      let vertexShader = _engine.VertexShaders.writeTextureVertexShader();
      let fragmentShader = _engine.FragmentShaders.writeTextureFragmentShader(isWebGl2, this.tileModeX, this.tileModeY);
      let offScreenCanvas = new _engine.OffScreenCanvas.new(widthInPixels, heightInPixels);
      let gl = _engine.GlContext.new(offScreenCanvas);
      gl.setViewportSize(widthInPixels, heightInPixels);
      let glProgram = gl.cacheProgram(vertexShader, fragmentShader);
      gl.useProgram(glProgram);
      let vertices = _native_typed_data.NativeFloat32List.new(6 * 2);
      let vRect = shaderBounds.translate(-dart.notNull(shaderBounds.left), -dart.notNull(shaderBounds.top));
      vertices[$_set](0, vRect.left);
      vertices[$_set](1, vRect.top);
      vertices[$_set](2, vRect.right);
      vertices[$_set](3, vRect.top);
      vertices[$_set](4, vRect.right);
      vertices[$_set](5, vRect.bottom);
      vertices[$_set](6, vRect.right);
      vertices[$_set](7, vRect.bottom);
      vertices[$_set](8, vRect.left);
      vertices[$_set](9, vRect.bottom);
      vertices[$_set](10, vRect.left);
      vertices[$_set](11, vRect.top);
      let positionAttributeLocation = gl.getAttributeLocation(glProgram.program, "position");
      _engine.setupVertexTransforms(gl, glProgram, 0.0, 0.0, widthInPixels[$toDouble](), heightInPixels[$toDouble](), transform);
      this.requiresTileOffset = shaderBounds.left !== 0 || shaderBounds.top !== 0;
      _engine.setupTextureTransform(gl, glProgram, shaderBounds.left, shaderBounds.top, 1.0 / this.image.width[$toDouble](), 1.0 / this.image.height[$toDouble]());
      let positionsBuffer = dart.nullCheck(gl.createBuffer());
      let vao = null;
      if (isWebGl2) {
        vao = gl.createVertexArray();
        gl.bindVertexArray(dart.nullCheck(vao));
      }
      gl.enableVertexAttribArray(positionAttributeLocation);
      gl.bindArrayBuffer(positionsBuffer);
      _engine.bufferVertexData(gl, vertices, ui.window.devicePixelRatio);
      _engine.vertexAttribPointerGlContext(gl.glContext, positionAttributeLocation, 2, gl.kFloat, false, 0, 0);
      let texture = gl.createTexture();
      gl.activeTexture(gl.kTexture0);
      gl.bindTexture(gl.kTexture2D, texture);
      gl.texImage2D(gl.kTexture2D, 0, gl.kRGBA, gl.kRGBA, gl.kUnsignedByte, this.image.imgElement);
      if (isWebGl2) {
        gl.texParameteri(gl.kTexture2D, gl.kTextureWrapS, _engine.tileModeToGlWrapping(gl, this.tileModeX));
        gl.texParameteri(gl.kTexture2D, gl.kTextureWrapT, _engine.tileModeToGlWrapping(gl, this.tileModeY));
        gl.generateMipmap(gl.kTexture2D);
      } else {
        gl.texParameteri(gl.kTexture2D, gl.kTextureWrapS, gl.kClampToEdge);
        gl.texParameteri(gl.kTexture2D, gl.kTextureWrapT, gl.kClampToEdge);
        gl.texParameteri(gl.kTexture2D, gl.kTextureMinFilter, gl.kLinear);
      }
      gl.clear();
      gl.drawTriangles(6, ui.VertexMode.triangles);
      if (vao != null) {
        gl.unbindVertexArray();
      }
      let bitmapImage = gl.readPatternData(false);
      gl.bindArrayBuffer(null);
      gl.bindElementArrayBuffer(null);
      return dart.nullCheck(_engine['DomCanvasRenderingContext2DExtension|createPattern'](dart.nullCheck(context), dart.nullCheck(bitmapImage), "no-repeat"));
    }
    get debugDisposed() {
      let disposed = null;
      let t$36$35disposed$35isSet = false;
      function t$36$35disposed$35get() {
        return t$36$35disposed$35isSet ? disposed : dart.throw(new _internal.LateError.localNI("disposed"));
      }
      function t$36$35disposed$35set(disposed$35param) {
        if (disposed$35param == null) dart.nullFailed(I[307], 264, 15, "disposed#param");
        t$36$35disposed$35isSet = true;
        return disposed = disposed$35param;
      }
      if (!dart.test(dart.fn(() => {
        t$36$35disposed$35set(this[_disposed]);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[307], 265, 12, "() {\n      disposed = _disposed;\n      return true;\n    }()");
      return t$36$35disposed$35get();
    }
    dispose() {
      if (!dart.test(dart.fn(() => {
        this[_disposed] = true;
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[307], 274, 12, "() {\n      _disposed = true;\n      return true;\n    }()");
      this.image.dispose();
    }
  };
  (_engine.EngineImageShader.new = function(image, tileModeX, tileModeY, matrix4, filterQuality) {
    if (image == null) dart.nullFailed(I[307], 10, 30, "image");
    if (tileModeX == null) dart.nullFailed(I[307], 10, 42, "tileModeX");
    if (tileModeY == null) dart.nullFailed(I[307], 10, 58, "tileModeY");
    if (matrix4 == null) dart.nullFailed(I[307], 11, 19, "matrix4");
    this[requiresTileOffset] = false;
    this[_disposed] = false;
    this[tileModeX$0] = tileModeX;
    this[tileModeY$0] = tileModeY;
    this[filterQuality$2] = filterQuality;
    this[image$1] = T$10.HtmlImage()[_as](image);
    this[matrix4$4] = _native_typed_data.NativeFloat32List.fromList(matrix4);
    ;
  }).prototype = _engine.EngineImageShader.prototype;
  dart.addRtiResources(_engine.EngineImageShader, ["_engine|EngineImageShader", "ui|ImageShader", "ui|Shader"]);
  dart.setMethodSignature(_engine.EngineImageShader, () => dart.global.Object.setPrototypeOf({
    createPaintStyle: T$11.DomCanvasRenderingContext2DAndRectNAnddoubleToObject(),
    [_tileModeToHtmlRepeatAttribute]: T$11.TileModeAndTileModeToString(),
    [_resolveTiledImageSource]: T$11.HtmlImageAndTileModeAndTileModeToObjectN(),
    [_createGlShader]: T$11.DomCanvasRenderingContext2DNAndRectAnddoubleToDomCanvasPattern(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineImageShader))));
  dart.setGetterSignature(_engine.EngineImageShader, () => dart.global.Object.setPrototypeOf({debugDisposed: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineImageShader))));
  dart.setLibraryUri(_engine.EngineImageShader, I[220]);
  dart.setFieldSignature(_engine.EngineImageShader, () => dart.global.Object.setPrototypeOf({
    tileModeX: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    tileModeY: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    matrix4: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    filterQuality: {type: T$10.FilterQualityN(), isConst: false, isFinal: true, libraryUri: I[198]},
    image: {type: T$10.HtmlImage(), isConst: false, isFinal: true, libraryUri: I[220]},
    requiresTileOffset: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_disposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineImageShader))));
  var thresholdCount$ = dart.privateName(_engine, "NormalizedGradient.thresholdCount");
  var isOpaque$ = dart.privateName(_engine, "NormalizedGradient.isOpaque");
  var _thresholds$ = dart.privateName(_engine, "_thresholds");
  var _bias$ = dart.privateName(_engine, "_bias");
  _engine.NormalizedGradient = class NormalizedGradient extends core.Object {
    get thresholdCount() {
      return this[thresholdCount$];
    }
    set thresholdCount(value) {
      super.thresholdCount = value;
    }
    get isOpaque() {
      return this[isOpaque$];
    }
    set isOpaque(value) {
      super.isOpaque = value;
    }
    static new(colors, opts) {
      let t$36559, t$36559$, t$36559$0, t$36559$1, t$36559$2, t$36559$3, t$36559$4, t$36559$5, t$36559$6, t$36559$7, t$36559$8, t$36559$9, t$36559$10, t$36559$11, t$36559$12, t$36559$13, t$36559$14, t$36559$15;
      if (colors == null) dart.nullFailed(I[308], 22, 45, "colors");
      let stops = opts && 'stops' in opts ? opts.stops : null;
      if (!(stops != null || colors[$length] === 2)) dart.assertFailed(null, I[308], 25, 12, "stops != null || colors.length == 2");
      stops == null ? stops = C[875] || CT.C875 : null;
      let colorCount = colors[$length];
      let normalizedCount = colorCount;
      let isOpaque = !dart.test(colors[$any](dart.fn(c => {
        if (c == null) dart.nullFailed(I[308], 29, 49, "c");
        return dart.notNull(c.alpha) < 1.0;
      }, T$11.ColorTobool())));
      let addFirst = stops[$_get](0) !== 0.0;
      let addLast = stops[$last] !== 1.0;
      if (addFirst) {
        normalizedCount = dart.notNull(normalizedCount) + 1;
      }
      if (addLast) {
        normalizedCount = dart.notNull(normalizedCount) + 1;
      }
      let bias = _native_typed_data.NativeFloat32List.new(dart.notNull(normalizedCount) * 4);
      let scale = _native_typed_data.NativeFloat32List.new(dart.notNull(normalizedCount) * 4);
      let thresholds = _native_typed_data.NativeFloat32List.new(4 * (((dart.notNull(normalizedCount) - 1) / 4)[$truncate]() + 1));
      let targetIndex = 0;
      let thresholdIndex = 0;
      if (addFirst) {
        let c = colors[$_get](0);
        bias[$_set]((t$36559 = targetIndex, targetIndex = t$36559 + 1, t$36559), dart.notNull(c.red) / 255.0);
        bias[$_set]((t$36559$ = targetIndex, targetIndex = t$36559$ + 1, t$36559$), dart.notNull(c.green) / 255.0);
        bias[$_set]((t$36559$0 = targetIndex, targetIndex = t$36559$0 + 1, t$36559$0), dart.notNull(c.blue) / 255.0);
        bias[$_set]((t$36559$1 = targetIndex, targetIndex = t$36559$1 + 1, t$36559$1), dart.notNull(c.alpha) / 255.0);
        thresholds[$_set]((t$36559$2 = thresholdIndex, thresholdIndex = t$36559$2 + 1, t$36559$2), 0.0);
      }
      for (let c of colors) {
        bias[$_set]((t$36559$3 = targetIndex, targetIndex = t$36559$3 + 1, t$36559$3), dart.notNull(c.red) / 255.0);
        bias[$_set]((t$36559$4 = targetIndex, targetIndex = t$36559$4 + 1, t$36559$4), dart.notNull(c.green) / 255.0);
        bias[$_set]((t$36559$5 = targetIndex, targetIndex = t$36559$5 + 1, t$36559$5), dart.notNull(c.blue) / 255.0);
        bias[$_set]((t$36559$6 = targetIndex, targetIndex = t$36559$6 + 1, t$36559$6), dart.notNull(c.alpha) / 255.0);
      }
      for (let stop of stops) {
        thresholds[$_set]((t$36559$7 = thresholdIndex, thresholdIndex = t$36559$7 + 1, t$36559$7), stop);
      }
      if (addLast) {
        let c = colors[$last];
        bias[$_set]((t$36559$8 = targetIndex, targetIndex = t$36559$8 + 1, t$36559$8), dart.notNull(c.red) / 255.0);
        bias[$_set]((t$36559$9 = targetIndex, targetIndex = t$36559$9 + 1, t$36559$9), dart.notNull(c.green) / 255.0);
        bias[$_set]((t$36559$10 = targetIndex, targetIndex = t$36559$10 + 1, t$36559$10), dart.notNull(c.blue) / 255.0);
        bias[$_set]((t$36559$11 = targetIndex, targetIndex = t$36559$11 + 1, t$36559$11), dart.notNull(c.alpha) / 255.0);
        thresholds[$_set]((t$36559$12 = thresholdIndex, thresholdIndex = t$36559$12 + 1, t$36559$12), 1.0);
      }
      let lastColorIndex = 4 * (dart.notNull(normalizedCount) - 1);
      for (let i = 0; i < lastColorIndex; i = i + 1) {
        let thresholdIndex = i[$rightShift](2);
        scale[$_set](i, (dart.notNull(bias[$_get](i + 4)) - dart.notNull(bias[$_get](i))) / (dart.notNull(thresholds[$_get](thresholdIndex + 1)) - dart.notNull(thresholds[$_get](thresholdIndex))));
      }
      scale[$_set](lastColorIndex, 0.0);
      scale[$_set](lastColorIndex + 1, 0.0);
      scale[$_set](lastColorIndex + 2, 0.0);
      scale[$_set](lastColorIndex + 3, 0.0);
      for (let i = 0; i < dart.notNull(normalizedCount); i = i + 1) {
        let t = thresholds[$_get](i);
        let colorIndex = i * 4;
        bias[$_set](colorIndex, dart.notNull(bias[$_get](colorIndex)) - dart.notNull(t) * dart.notNull(scale[$_get](colorIndex)));
        t$36559$13 = colorIndex + 1;
        bias[$_set](t$36559$13, dart.notNull(bias[$_get](t$36559$13)) - dart.notNull(t) * dart.notNull(scale[$_get](colorIndex + 1)));
        t$36559$14 = colorIndex + 2;
        bias[$_set](t$36559$14, dart.notNull(bias[$_get](t$36559$14)) - dart.notNull(t) * dart.notNull(scale[$_get](colorIndex + 2)));
        t$36559$15 = colorIndex + 3;
        bias[$_set](t$36559$15, dart.notNull(bias[$_get](t$36559$15)) - dart.notNull(t) * dart.notNull(scale[$_get](colorIndex + 3)));
      }
      return new _engine.NormalizedGradient.__(normalizedCount, thresholds, scale, bias, isOpaque);
    }
    static ['_#new#tearOff'](colors, opts) {
      if (colors == null) dart.nullFailed(I[308], 22, 45, "colors");
      let stops = opts && 'stops' in opts ? opts.stops : null;
      return _engine.NormalizedGradient.new(colors, {stops: stops});
    }
    static ['_#_#tearOff'](thresholdCount, _thresholds, _scale, _bias, isOpaque) {
      if (thresholdCount == null) dart.nullFailed(I[308], 94, 12, "thresholdCount");
      if (_thresholds == null) dart.nullFailed(I[308], 94, 33, "_thresholds");
      if (_scale == null) dart.nullFailed(I[308], 94, 51, "_scale");
      if (_bias == null) dart.nullFailed(I[308], 94, 64, "_bias");
      if (isOpaque == null) dart.nullFailed(I[308], 94, 76, "isOpaque");
      return new _engine.NormalizedGradient.__(thresholdCount, _thresholds, _scale, _bias, isOpaque);
    }
    setupUniforms(gl, glProgram) {
      if (gl == null) dart.nullFailed(I[308], 103, 32, "gl");
      if (glProgram == null) dart.nullFailed(I[308], 103, 46, "glProgram");
      for (let i = 0; i < dart.notNull(this.thresholdCount); i = i + 1) {
        let biasId = gl.getUniformLocation(glProgram.program, "bias_" + dart.strSafe(i));
        gl.setUniform4f(biasId, this[_bias$][$_get](i * 4), this[_bias$][$_get](i * 4 + 1), this[_bias$][$_get](i * 4 + 2), this[_bias$][$_get](i * 4 + 3));
        let scaleId = gl.getUniformLocation(glProgram.program, "scale_" + dart.strSafe(i));
        gl.setUniform4f(scaleId, this[_scale$][$_get](i * 4), this[_scale$][$_get](i * 4 + 1), this[_scale$][$_get](i * 4 + 2), this[_scale$][$_get](i * 4 + 3));
      }
      for (let i = 0; i < dart.notNull(this[_thresholds$][$length]); i = i + 4) {
        let thresId = gl.getUniformLocation(glProgram.program, "threshold_" + dart.strSafe((i / 4)[$truncate]()));
        gl.setUniform4f(thresId, this[_thresholds$][$_get](i), this[_thresholds$][$_get](i + 1), this[_thresholds$][$_get](i + 2), this[_thresholds$][$_get](i + 3));
      }
    }
    biasAt(index) {
      if (index == null) dart.nullFailed(I[308], 121, 21, "index");
      return this[_bias$][$_get](index);
    }
    scaleAt(index) {
      if (index == null) dart.nullFailed(I[308], 124, 22, "index");
      return this[_scale$][$_get](index);
    }
    thresholdAt(index) {
      if (index == null) dart.nullFailed(I[308], 127, 26, "index");
      return this[_thresholds$][$_get](index);
    }
  };
  (_engine.NormalizedGradient.__ = function(thresholdCount, _thresholds, _scale, _bias, isOpaque) {
    if (thresholdCount == null) dart.nullFailed(I[308], 94, 12, "thresholdCount");
    if (_thresholds == null) dart.nullFailed(I[308], 94, 33, "_thresholds");
    if (_scale == null) dart.nullFailed(I[308], 94, 51, "_scale");
    if (_bias == null) dart.nullFailed(I[308], 94, 64, "_bias");
    if (isOpaque == null) dart.nullFailed(I[308], 94, 76, "isOpaque");
    this[thresholdCount$] = thresholdCount;
    this[_thresholds$] = _thresholds;
    this[_scale$] = _scale;
    this[_bias$] = _bias;
    this[isOpaque$] = isOpaque;
    ;
  }).prototype = _engine.NormalizedGradient.prototype;
  dart.addRtiResources(_engine.NormalizedGradient, ["_engine|NormalizedGradient"]);
  dart.setMethodSignature(_engine.NormalizedGradient, () => dart.global.Object.setPrototypeOf({
    setupUniforms: T$11.GlContextAndGlProgramTovoid(),
    biasAt: T$0.intTodouble(),
    scaleAt: T$0.intTodouble(),
    thresholdAt: T$0.intTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.NormalizedGradient))));
  dart.setStaticMethodSignature(_engine.NormalizedGradient, () => ['new']);
  dart.setLibraryUri(_engine.NormalizedGradient, I[220]);
  dart.setFieldSignature(_engine.NormalizedGradient, () => dart.global.Object.setPrototypeOf({
    [_thresholds$]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_bias$]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_scale$]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    thresholdCount: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    isOpaque: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.NormalizedGradient))));
  var _checkedOut = dart.privateName(_engine, "_checkedOut");
  _engine.SharedCanvas = class SharedCanvas extends core.Object {
    checkOutContext(width, height) {
      if (width == null) dart.nullFailed(I[309], 15, 33, "width");
      if (height == null) dart.nullFailed(I[309], 15, 44, "height");
      if (!!dart.test(this[_checkedOut])) dart.assertFailed(null, I[309], 16, 12, "!_checkedOut");
      this[_checkedOut] = true;
      if (this[_canvas$] == null) {
        this[_canvas$] = new _engine.OffScreenCanvas.new(width, height);
      } else {
        dart.nullCheck(this[_canvas$]).resize(width, height);
      }
      return _engine.GlContext.new(dart.nullCheck(this[_canvas$]));
    }
    checkInContext() {
      if (!dart.test(this[_checkedOut])) dart.assertFailed(null, I[309], 27, 12, "_checkedOut");
      this[_checkedOut] = false;
    }
    static ['_#new#tearOff']() {
      return new _engine.SharedCanvas.new();
    }
  };
  (_engine.SharedCanvas.new = function() {
    this[_canvas$] = null;
    this[_checkedOut] = false;
    ;
  }).prototype = _engine.SharedCanvas.prototype;
  dart.addRtiResources(_engine.SharedCanvas, ["_engine|SharedCanvas"]);
  dart.setMethodSignature(_engine.SharedCanvas, () => dart.global.Object.setPrototypeOf({
    checkOutContext: T$11.intAndintToGlContext(),
    checkInContext: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SharedCanvas))));
  dart.setLibraryUri(_engine.SharedCanvas, I[220]);
  dart.setFieldSignature(_engine.SharedCanvas, () => dart.global.Object.setPrototypeOf({
    [_canvas$]: {type: T$11.OffScreenCanvasN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_checkedOut]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SharedCanvas))));
  var debugDisposed = dart.privateName(_engine, "EngineGradient.debugDisposed");
  _engine.EngineGradient = class EngineGradient extends core.Object {
    get debugDisposed() {
      return this[debugDisposed];
    }
    set debugDisposed(value) {
      if (value == null) dart.nullFailed(I[309], 46, 8, "debugDisposed");
      this[debugDisposed] = value;
    }
    dispose() {
    }
    toString() {
      return "Gradient()";
    }
  };
  (_engine.EngineGradient.__ = function() {
    this[debugDisposed] = false;
    ;
  }).prototype = _engine.EngineGradient.prototype;
  dart.addRtiResources(_engine.EngineGradient, ["_engine|EngineGradient", "ui|Gradient", "ui|Shader"]);
  dart.setMethodSignature(_engine.EngineGradient, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineGradient))));
  dart.setLibraryUri(_engine.EngineGradient, I[220]);
  dart.setFieldSignature(_engine.EngineGradient, () => dart.global.Object.setPrototypeOf({debugDisposed: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineGradient))));
  dart.defineExtensionMethods(_engine.EngineGradient, ['toString']);
  var center$2 = dart.privateName(_engine, "GradientSweep.center");
  var colors$4 = dart.privateName(_engine, "GradientSweep.colors");
  var colorStops$3 = dart.privateName(_engine, "GradientSweep.colorStops");
  var tileMode$3 = dart.privateName(_engine, "GradientSweep.tileMode");
  var startAngle$1 = dart.privateName(_engine, "GradientSweep.startAngle");
  var endAngle$1 = dart.privateName(_engine, "GradientSweep.endAngle");
  var matrix4$5 = dart.privateName(_engine, "GradientSweep.matrix4");
  var _createSweepFragmentShader = dart.privateName(_engine, "_createSweepFragmentShader");
  _engine.GradientSweep = class GradientSweep extends _engine.EngineGradient {
    get center() {
      return this[center$2];
    }
    set center(value) {
      super.center = value;
    }
    get colors() {
      return this[colors$4];
    }
    set colors(value) {
      super.colors = value;
    }
    get colorStops() {
      return this[colorStops$3];
    }
    set colorStops(value) {
      super.colorStops = value;
    }
    get tileMode() {
      return this[tileMode$3];
    }
    set tileMode(value) {
      super.tileMode = value;
    }
    get startAngle() {
      return this[startAngle$1];
    }
    set startAngle(value) {
      super.startAngle = value;
    }
    get endAngle() {
      return this[endAngle$1];
    }
    set endAngle(value) {
      super.endAngle = value;
    }
    get matrix4() {
      return this[matrix4$5];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    static ['_#new#tearOff'](center, colors, colorStops, tileMode, startAngle, endAngle, matrix4) {
      if (center == null) dart.nullFailed(I[309], 56, 22, "center");
      if (colors == null) dart.nullFailed(I[309], 56, 35, "colors");
      if (tileMode == null) dart.nullFailed(I[309], 56, 65, "tileMode");
      if (startAngle == null) dart.nullFailed(I[309], 57, 12, "startAngle");
      if (endAngle == null) dart.nullFailed(I[309], 57, 29, "endAngle");
      return new _engine.GradientSweep.new(center, colors, colorStops, tileMode, startAngle, endAngle, matrix4);
    }
    createImageBitmap(shaderBounds, density, createDataUrl) {
      let t$36559;
      if (density == null) dart.nullFailed(I[309], 65, 37, "density");
      if (createDataUrl == null) dart.nullFailed(I[309], 65, 51, "createDataUrl");
      if (!(shaderBounds != null)) dart.assertFailed(null, I[309], 66, 12, "shaderBounds != null");
      let widthInPixels = dart.nullCheck(shaderBounds).width[$ceil]();
      let heightInPixels = shaderBounds.height[$ceil]();
      if (!(widthInPixels > 0 && heightInPixels > 0)) dart.assertFailed(null, I[309], 69, 12, "widthInPixels > 0 && heightInPixels > 0");
      _engine.initWebGl();
      let gl = _engine._sharedCanvas.checkOutContext(widthInPixels, heightInPixels);
      gl.setViewportSize(widthInPixels, heightInPixels);
      let normalizedGradient = _engine.NormalizedGradient.new(this.colors, {stops: this.colorStops});
      let glProgram = gl.cacheProgram(_engine.VertexShaders.writeBaseVertexShader(), this[_createSweepFragmentShader](normalizedGradient, this.tileMode));
      gl.useProgram(glProgram);
      let tileOffset = gl.getUniformLocation(glProgram.program, "u_tile_offset");
      let centerX = (dart.notNull(this.center.dx) - dart.notNull(shaderBounds.left)) / dart.notNull(shaderBounds.width);
      let centerY = (dart.notNull(this.center.dy) - dart.notNull(shaderBounds.top)) / dart.notNull(shaderBounds.height);
      gl.setUniform2f(tileOffset, 2 * (dart.notNull(shaderBounds.width) * (centerX - 0.5)), 2 * (dart.notNull(shaderBounds.height) * (0.5 - centerY)));
      let angleRange = gl.getUniformLocation(glProgram.program, "angle_range");
      gl.setUniform2f(angleRange, this.startAngle, this.endAngle);
      normalizedGradient.setupUniforms(gl, glProgram);
      let gradientMatrix = gl.getUniformLocation(glProgram.program, "m_gradient");
      let gradientTransform = new _engine.Matrix4.identity();
      if (this.matrix4 != null) {
        let m4 = (t$36559 = new _engine.Matrix4.zero(), (() => {
          t$36559.copyInverse(new _engine.Matrix4.fromFloat32List(dart.nullCheck(this.matrix4)));
          return t$36559;
        })());
        gradientTransform.translate(-dart.notNull(this.center.dx), -dart.notNull(this.center.dy));
        gradientTransform.multiply(m4);
        gradientTransform.translate(this.center.dx, this.center.dy);
      }
      gl.setUniformMatrix4fv(gradientMatrix, false, gradientTransform.storage);
      let result = dart.fn(() => {
        if (dart.test(createDataUrl)) {
          return dart.nullCheck(_engine.glRenderer).drawRectToImageUrl(new ui.Rect.fromLTWH(0.0, 0.0, shaderBounds.width, shaderBounds.height), gl, glProgram, normalizedGradient, widthInPixels, heightInPixels);
        } else {
          return dart.nullCheck(dart.nullCheck(_engine.glRenderer).drawRect(new ui.Rect.fromLTWH(0.0, 0.0, shaderBounds.width, shaderBounds.height), gl, glProgram, normalizedGradient, widthInPixels, heightInPixels));
        }
      }, T$.VoidToObject())();
      _engine._sharedCanvas.checkInContext();
      return result;
    }
    createPaintStyle(ctx, shaderBounds, density) {
      if (density == null) dart.nullFailed(I[309], 130, 37, "density");
      let imageBitmap = this.createImageBitmap(shaderBounds, density, false);
      return dart.nullCheck(_engine['DomCanvasRenderingContext2DExtension|createPattern'](dart.nullCheck(ctx), imageBitmap, "no-repeat"));
    }
    [_createSweepFragmentShader](gradient, tileMode) {
      if (gradient == null) dart.nullFailed(I[309], 136, 26, "gradient");
      if (tileMode == null) dart.nullFailed(I[309], 136, 48, "tileMode");
      let builder = new _engine.ShaderBuilder.fragment(_engine.webGLVersion);
      builder.floatPrecision = 1;
      builder.addIn(11, {name: "v_color"});
      builder.addUniform(9, {name: "u_resolution"});
      builder.addUniform(9, {name: "u_tile_offset"});
      builder.addUniform(9, {name: "angle_range"});
      builder.addUniform(14, {name: "m_gradient"});
      let fragColor = builder.fragmentColor;
      let method = builder.addMethod("main");
      method.addStatement("vec2 center = 0.5 * (u_resolution + u_tile_offset);");
      method.addStatement("vec4 localCoord = m_gradient * vec4(gl_FragCoord.x - center.x, center.y - gl_FragCoord.y, 0, 1);");
      method.addStatement("float angle = atan(-localCoord.y, -localCoord.x) + 3.141592653589793;");
      method.addStatement("float sweep = angle_range.y - angle_range.x;");
      method.addStatement("angle = (angle - angle_range.x) / sweep;");
      method.addStatement("float st = angle;");
      let probeName = _engine._writeSharedGradientShader(builder, method, gradient, tileMode);
      method.addStatement(dart.str(fragColor.name) + " = " + dart.str(probeName) + " * scale + bias;");
      let shader = builder.build();
      return shader;
    }
  };
  (_engine.GradientSweep.new = function(center, colors, colorStops, tileMode, startAngle, endAngle, matrix4) {
    if (center == null) dart.nullFailed(I[309], 56, 22, "center");
    if (colors == null) dart.nullFailed(I[309], 56, 35, "colors");
    if (tileMode == null) dart.nullFailed(I[309], 56, 65, "tileMode");
    if (startAngle == null) dart.nullFailed(I[309], 57, 12, "startAngle");
    if (endAngle == null) dart.nullFailed(I[309], 57, 29, "endAngle");
    this[center$2] = center;
    this[colors$4] = colors;
    this[colorStops$3] = colorStops;
    this[tileMode$3] = tileMode;
    this[startAngle$1] = startAngle;
    this[endAngle$1] = endAngle;
    this[matrix4$5] = matrix4;
    if (!dart.test(_engine.offsetIsValid(center))) dart.assertFailed(null, I[309], 58, 16, "offsetIsValid(center)");
    dart.global.Object.getPrototypeOf(_engine.GradientSweep).__.call(this);
    _engine.validateColorStops(this.colors, this.colorStops);
  }).prototype = _engine.GradientSweep.prototype;
  dart.addRtiResources(_engine.GradientSweep, ["_engine|GradientSweep"]);
  dart.setMethodSignature(_engine.GradientSweep, () => dart.global.Object.setPrototypeOf({
    createImageBitmap: T$11.RectNAnddoubleAndboolToObject(),
    createPaintStyle: T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToObject(),
    [_createSweepFragmentShader]: T$11.NormalizedGradientAndTileModeToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.GradientSweep))));
  dart.setLibraryUri(_engine.GradientSweep, I[220]);
  dart.setFieldSignature(_engine.GradientSweep, () => dart.global.Object.setPrototypeOf({
    center: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    colors: {type: T$10.ListOfColor(), isConst: false, isFinal: true, libraryUri: I[11]},
    colorStops: {type: T$10.ListNOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    tileMode: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    startAngle: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    endAngle: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    matrix4: {type: T$5.Float32ListN(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.GradientSweep))));
  var from$0 = dart.privateName(_engine, "GradientLinear.from");
  var to$0 = dart.privateName(_engine, "GradientLinear.to");
  var colors$5 = dart.privateName(_engine, "GradientLinear.colors");
  var colorStops$4 = dart.privateName(_engine, "GradientLinear.colorStops");
  var tileMode$4 = dart.privateName(_engine, "GradientLinear.tileMode");
  var matrix4$6 = dart.privateName(_engine, "GradientLinear.matrix4");
  var _createCanvasGradient = dart.privateName(_engine, "_createCanvasGradient");
  var _createGlGradient = dart.privateName(_engine, "_createGlGradient");
  var _createLinearFragmentShader = dart.privateName(_engine, "_createLinearFragmentShader");
  _engine.GradientLinear = class GradientLinear extends _engine.EngineGradient {
    get from() {
      return this[from$0];
    }
    set from(value) {
      super.from = value;
    }
    get to() {
      return this[to$0];
    }
    set to(value) {
      super.to = value;
    }
    get colors() {
      return this[colors$5];
    }
    set colors(value) {
      super.colors = value;
    }
    get colorStops() {
      return this[colorStops$4];
    }
    set colorStops(value) {
      super.colorStops = value;
    }
    get tileMode() {
      return this[tileMode$4];
    }
    set tileMode(value) {
      super.tileMode = value;
    }
    get matrix4() {
      return this[matrix4$6];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    static ['_#new#tearOff'](from, to, colors, colorStops, tileMode, matrix) {
      if (from == null) dart.nullFailed(I[309], 176, 10, "from");
      if (to == null) dart.nullFailed(I[309], 177, 10, "to");
      if (colors == null) dart.nullFailed(I[309], 178, 10, "colors");
      if (tileMode == null) dart.nullFailed(I[309], 180, 10, "tileMode");
      return new _engine.GradientLinear.new(from, to, colors, colorStops, tileMode, matrix);
    }
    createPaintStyle(ctx, shaderBounds, density) {
      if (density == null) dart.nullFailed(I[309], 202, 37, "density");
      if (this.tileMode == ui.TileMode.clamp || this.tileMode == ui.TileMode.decal) {
        return this[_createCanvasGradient](ctx, shaderBounds, density);
      } else {
        return this[_createGlGradient](ctx, shaderBounds, density);
      }
    }
    [_createCanvasGradient](ctx, shaderBounds, density) {
      if (density == null) dart.nullFailed(I[309], 211, 37, "density");
      let matrix4 = this.matrix4;
      let gradient = null;
      let offsetX = dart.nullCheck(shaderBounds).left;
      let offsetY = shaderBounds.top;
      if (matrix4 != null) {
        let centerX = (dart.notNull(this.from.dx) + dart.notNull(this.to.dx)) / 2.0 - dart.notNull(shaderBounds.left);
        let centerY = (dart.notNull(this.from.dy) + dart.notNull(this.to.dy)) / 2.0 - dart.notNull(shaderBounds.top);
        matrix4.transform(dart.notNull(this.from.dx) - centerX, dart.notNull(this.from.dy) - centerY);
        let fromX = dart.notNull(matrix4.transformedX) + centerX;
        let fromY = dart.notNull(matrix4.transformedY) + centerY;
        matrix4.transform(dart.notNull(this.to.dx) - centerX, dart.notNull(this.to.dy) - centerY);
        gradient = _engine['DomCanvasRenderingContext2DExtension|createLinearGradient'](dart.nullCheck(ctx), fromX - dart.notNull(offsetX), fromY - dart.notNull(offsetY), dart.notNull(matrix4.transformedX) + centerX - dart.notNull(offsetX), dart.notNull(matrix4.transformedY) + centerY - dart.notNull(offsetY));
      } else {
        gradient = _engine['DomCanvasRenderingContext2DExtension|createLinearGradient'](dart.nullCheck(ctx), dart.notNull(this.from.dx) - dart.notNull(offsetX), dart.notNull(this.from.dy) - dart.notNull(offsetY), dart.notNull(this.to.dx) - dart.notNull(offsetX), dart.notNull(this.to.dy) - dart.notNull(offsetY));
      }
      _engine._addColorStopsToCanvasGradient(gradient, this.colors, this.colorStops, this.tileMode == ui.TileMode.decal);
      return gradient;
    }
    createImageBitmap(shaderBounds, density, createDataUrl) {
      let t$36559;
      if (density == null) dart.nullFailed(I[309], 242, 37, "density");
      if (createDataUrl == null) dart.nullFailed(I[309], 242, 51, "createDataUrl");
      if (!(shaderBounds != null)) dart.assertFailed(null, I[309], 243, 12, "shaderBounds != null");
      let widthInPixels = dart.nullCheck(shaderBounds).width[$ceil]();
      let heightInPixels = shaderBounds.height[$ceil]();
      if (!(widthInPixels > 0 && heightInPixels > 0)) dart.assertFailed(null, I[309], 246, 12, "widthInPixels > 0 && heightInPixels > 0");
      _engine.initWebGl();
      let gl = _engine._sharedCanvas.checkOutContext(widthInPixels, heightInPixels);
      gl.setViewportSize(widthInPixels, heightInPixels);
      let normalizedGradient = _engine.NormalizedGradient.new(this.colors, {stops: this.colorStops});
      let glProgram = gl.cacheProgram(_engine.VertexShaders.writeBaseVertexShader(), this[_createLinearFragmentShader](normalizedGradient, this.tileMode));
      gl.useProgram(glProgram);
      let fromX = this.from.dx;
      let fromY = this.from.dy;
      let toX = this.to.dx;
      let toY = this.to.dy;
      let dx = dart.notNull(toX) - dart.notNull(fromX);
      let dy = dart.notNull(toY) - dart.notNull(fromY);
      let length = math.sqrt(dx * dx + dy * dy);
      let sinVal = length < 1.1920929e-7 ? 0.0 : -dy / length;
      let cosVal = length < 1.1920929e-7 ? 1.0 : dx / length;
      let isRepeated = this.tileMode != ui.TileMode.clamp;
      let originX = isRepeated ? dart.notNull(shaderBounds.width) / 2 : (dart.notNull(fromX) + dart.notNull(toX)) / 2.0 - dart.notNull(shaderBounds.left);
      let originY = isRepeated ? dart.notNull(shaderBounds.height) / 2 : (dart.notNull(fromY) + dart.notNull(toY)) / 2.0 - dart.notNull(shaderBounds.top);
      let originTranslation = _engine.Matrix4.translationValues(-originX, -originY, 0.0);
      let rotationZ = new _engine.Matrix4.identity();
      let storage = rotationZ.storage;
      storage[$_set](0, cosVal);
      storage[$_set](1, sinVal);
      storage[$_set](4, -sinVal);
      storage[$_set](5, cosVal);
      let gradientTransform = new _engine.Matrix4.identity();
      gradientTransform.translate(0.5);
      if (length > 1.1920929e-7) {
        gradientTransform.scale(1.0 / length);
      }
      if (this.matrix4 != null) {
        let m4 = (t$36559 = new _engine.Matrix4.zero(), (() => {
          t$36559.copyInverse(new _engine.Matrix4.fromFloat32List(dart.nullCheck(this.matrix4).matrix));
          return t$36559;
        })());
        let center = shaderBounds.center;
        gradientTransform.translate(-dart.notNull(center.dx), -dart.notNull(center.dy));
        gradientTransform.multiply(m4);
        gradientTransform.translate(center.dx, center.dy);
      }
      gradientTransform.multiply(rotationZ);
      gradientTransform.multiply(originTranslation);
      normalizedGradient.setupUniforms(gl, glProgram);
      let gradientMatrix = gl.getUniformLocation(glProgram.program, "m_gradient");
      gl.setUniformMatrix4fv(gradientMatrix, false, gradientTransform.storage);
      let uRes = gl.getUniformLocation(glProgram.program, "u_resolution");
      gl.setUniform2f(uRes, widthInPixels[$toDouble](), heightInPixels[$toDouble]());
      let result = dart.fn(() => {
        if (dart.test(createDataUrl)) {
          return dart.nullCheck(_engine.glRenderer).drawRectToImageUrl(new ui.Rect.fromLTWH(0.0, 0.0, shaderBounds.width, shaderBounds.height), gl, glProgram, normalizedGradient, widthInPixels, heightInPixels);
        } else {
          return dart.nullCheck(dart.nullCheck(_engine.glRenderer).drawRect(new ui.Rect.fromLTWH(0.0, 0.0, shaderBounds.width, shaderBounds.height), gl, glProgram, normalizedGradient, widthInPixels, heightInPixels));
        }
      }, T$.VoidToObject())();
      _engine._sharedCanvas.checkInContext();
      return result;
    }
    [_createGlGradient](ctx, shaderBounds, density) {
      if (density == null) dart.nullFailed(I[309], 366, 37, "density");
      let imageBitmap = this.createImageBitmap(shaderBounds, density, false);
      return dart.nullCheck(_engine['DomCanvasRenderingContext2DExtension|createPattern'](dart.nullCheck(ctx), imageBitmap, "no-repeat"));
    }
    [_createLinearFragmentShader](gradient, tileMode) {
      if (gradient == null) dart.nullFailed(I[309], 372, 26, "gradient");
      if (tileMode == null) dart.nullFailed(I[309], 372, 48, "tileMode");
      let builder = new _engine.ShaderBuilder.fragment(_engine.webGLVersion);
      builder.floatPrecision = 1;
      builder.addIn(11, {name: "v_color"});
      builder.addUniform(9, {name: "u_resolution"});
      builder.addUniform(14, {name: "m_gradient"});
      let fragColor = builder.fragmentColor;
      let method = builder.addMethod("main");
      method.addStatement("vec4 localCoord = m_gradient * vec4(gl_FragCoord.x, u_resolution.y - gl_FragCoord.y, 0, 1);");
      method.addStatement("float st = localCoord.x;");
      let probeName = _engine._writeSharedGradientShader(builder, method, gradient, tileMode);
      method.addStatement(dart.str(fragColor.name) + " = " + dart.str(probeName) + " * scale + bias;");
      let shader = builder.build();
      return shader;
    }
  };
  (_engine.GradientLinear.new = function(from, to, colors, colorStops, tileMode, matrix) {
    if (from == null) dart.nullFailed(I[309], 176, 10, "from");
    if (to == null) dart.nullFailed(I[309], 177, 10, "to");
    if (colors == null) dart.nullFailed(I[309], 178, 10, "colors");
    if (tileMode == null) dart.nullFailed(I[309], 180, 10, "tileMode");
    this[from$0] = from;
    this[to$0] = to;
    this[colors$5] = colors;
    this[colorStops$4] = colorStops;
    this[tileMode$4] = tileMode;
    if (!dart.test(_engine.offsetIsValid(from))) dart.assertFailed(null, I[309], 182, 16, "offsetIsValid(from)");
    if (!dart.test(_engine.offsetIsValid(to))) dart.assertFailed(null, I[309], 183, 16, "offsetIsValid(to)");
    this[matrix4$6] = matrix == null ? null : new _engine.FastMatrix32.new(matrix);
    dart.global.Object.getPrototypeOf(_engine.GradientLinear).__.call(this);
    if (!dart.test(dart.fn(() => {
      _engine.validateColorStops(this.colors, this.colorStops);
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[309], 187, 12, "() {\n      validateColorStops(colors, colorStops);\n      return true;\n    }()");
  }).prototype = _engine.GradientLinear.prototype;
  dart.addRtiResources(_engine.GradientLinear, ["_engine|GradientLinear"]);
  dart.setMethodSignature(_engine.GradientLinear, () => dart.global.Object.setPrototypeOf({
    createPaintStyle: T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToObject(),
    [_createCanvasGradient]: T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToDomCanvasGradient(),
    createImageBitmap: T$11.RectNAnddoubleAndboolToObject(),
    [_createGlGradient]: T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToDomCanvasPattern(),
    [_createLinearFragmentShader]: T$11.NormalizedGradientAndTileModeToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.GradientLinear))));
  dart.setLibraryUri(_engine.GradientLinear, I[220]);
  dart.setFieldSignature(_engine.GradientLinear, () => dart.global.Object.setPrototypeOf({
    from: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    to: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    colors: {type: T$10.ListOfColor(), isConst: false, isFinal: true, libraryUri: I[11]},
    colorStops: {type: T$10.ListNOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    tileMode: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    matrix4: {type: T$11.FastMatrix32N(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.GradientLinear))));
  var center$3 = dart.privateName(_engine, "GradientRadial.center");
  var radius$2 = dart.privateName(_engine, "GradientRadial.radius");
  var colors$6 = dart.privateName(_engine, "GradientRadial.colors");
  var colorStops$5 = dart.privateName(_engine, "GradientRadial.colorStops");
  var tileMode$5 = dart.privateName(_engine, "GradientRadial.tileMode");
  var matrix4$7 = dart.privateName(_engine, "GradientRadial.matrix4");
  var _createRadialFragmentShader = dart.privateName(_engine, "_createRadialFragmentShader");
  _engine.GradientRadial = class GradientRadial extends _engine.EngineGradient {
    get center() {
      return this[center$3];
    }
    set center(value) {
      super.center = value;
    }
    get radius() {
      return this[radius$2];
    }
    set radius(value) {
      super.radius = value;
    }
    get colors() {
      return this[colors$6];
    }
    set colors(value) {
      super.colors = value;
    }
    get colorStops() {
      return this[colorStops$5];
    }
    set colorStops(value) {
      super.colorStops = value;
    }
    get tileMode() {
      return this[tileMode$5];
    }
    set tileMode(value) {
      super.tileMode = value;
    }
    get matrix4() {
      return this[matrix4$7];
    }
    set matrix4(value) {
      super.matrix4 = value;
    }
    static ['_#new#tearOff'](center, radius, colors, colorStops, tileMode, matrix4) {
      if (center == null) dart.nullFailed(I[309], 473, 23, "center");
      if (radius == null) dart.nullFailed(I[309], 473, 36, "radius");
      if (colors == null) dart.nullFailed(I[309], 473, 49, "colors");
      if (tileMode == null) dart.nullFailed(I[309], 474, 12, "tileMode");
      return new _engine.GradientRadial.new(center, radius, colors, colorStops, tileMode, matrix4);
    }
    createPaintStyle(ctx, shaderBounds, density) {
      if (density == null) dart.nullFailed(I[309], 486, 37, "density");
      if (this.matrix4 == null && (this.tileMode == ui.TileMode.clamp || this.tileMode == ui.TileMode.decal)) {
        return this[_createCanvasGradient](ctx, shaderBounds, density);
      } else {
        return this[_createGlGradient](ctx, shaderBounds, density);
      }
    }
    [_createCanvasGradient](ctx, shaderBounds, density) {
      if (density == null) dart.nullFailed(I[309], 495, 37, "density");
      let offsetX = dart.nullCheck(shaderBounds).left;
      let offsetY = shaderBounds.top;
      let gradient = _engine['DomCanvasRenderingContext2DExtension|createRadialGradient'](dart.nullCheck(ctx), dart.notNull(this.center.dx) - dart.notNull(offsetX), dart.notNull(this.center.dy) - dart.notNull(offsetY), 0, dart.notNull(this.center.dx) - dart.notNull(offsetX), dart.notNull(this.center.dy) - dart.notNull(offsetY), this.radius);
      _engine._addColorStopsToCanvasGradient(gradient, this.colors, this.colorStops, this.tileMode == ui.TileMode.decal);
      return gradient;
    }
    createImageBitmap(shaderBounds, density, createDataUrl) {
      let t$36559;
      if (density == null) dart.nullFailed(I[309], 512, 37, "density");
      if (createDataUrl == null) dart.nullFailed(I[309], 512, 51, "createDataUrl");
      if (!(shaderBounds != null)) dart.assertFailed(null, I[309], 513, 12, "shaderBounds != null");
      let widthInPixels = dart.nullCheck(shaderBounds).width[$ceil]();
      let heightInPixels = shaderBounds.height[$ceil]();
      if (!(widthInPixels > 0 && heightInPixels > 0)) dart.assertFailed(null, I[309], 516, 12, "widthInPixels > 0 && heightInPixels > 0");
      _engine.initWebGl();
      let gl = _engine._sharedCanvas.checkOutContext(widthInPixels, heightInPixels);
      gl.setViewportSize(widthInPixels, heightInPixels);
      let normalizedGradient = _engine.NormalizedGradient.new(this.colors, {stops: this.colorStops});
      let glProgram = gl.cacheProgram(_engine.VertexShaders.writeBaseVertexShader(), this[_createRadialFragmentShader](normalizedGradient, shaderBounds, this.tileMode));
      gl.useProgram(glProgram);
      let tileOffset = gl.getUniformLocation(glProgram.program, "u_tile_offset");
      let centerX = (dart.notNull(this.center.dx) - dart.notNull(shaderBounds.left)) / dart.notNull(shaderBounds.width);
      let centerY = (dart.notNull(this.center.dy) - dart.notNull(shaderBounds.top)) / dart.notNull(shaderBounds.height);
      gl.setUniform2f(tileOffset, 2 * (dart.notNull(shaderBounds.width) * (centerX - 0.5)), 2 * (dart.notNull(shaderBounds.height) * (0.5 - centerY)));
      let radiusUniform = gl.getUniformLocation(glProgram.program, "u_radius");
      gl.setUniform1f(radiusUniform, this.radius);
      normalizedGradient.setupUniforms(gl, glProgram);
      let gradientMatrix = gl.getUniformLocation(glProgram.program, "m_gradient");
      let gradientTransform = new _engine.Matrix4.identity();
      if (this.matrix4 != null) {
        let m4 = (t$36559 = new _engine.Matrix4.zero(), (() => {
          t$36559.copyInverse(new _engine.Matrix4.fromFloat32List(dart.nullCheck(this.matrix4)));
          return t$36559;
        })());
        gradientTransform.translate(-dart.notNull(this.center.dx), -dart.notNull(this.center.dy));
        gradientTransform.multiply(m4);
        gradientTransform.translate(this.center.dx, this.center.dy);
      }
      gl.setUniformMatrix4fv(gradientMatrix, false, gradientTransform.storage);
      let result = dart.fn(() => {
        if (dart.test(createDataUrl)) {
          return dart.nullCheck(_engine.glRenderer).drawRectToImageUrl(new ui.Rect.fromLTWH(0.0, 0.0, shaderBounds.width, shaderBounds.height), gl, glProgram, normalizedGradient, widthInPixels, heightInPixels);
        } else {
          return dart.nullCheck(dart.nullCheck(_engine.glRenderer).drawRect(new ui.Rect.fromLTWH(0.0, 0.0, shaderBounds.width, shaderBounds.height), gl, glProgram, normalizedGradient, widthInPixels, heightInPixels));
        }
      }, T$.VoidToObject())();
      _engine._sharedCanvas.checkInContext();
      return result;
    }
    [_createGlGradient](ctx, shaderBounds, density) {
      if (density == null) dart.nullFailed(I[309], 581, 37, "density");
      let imageBitmap = this.createImageBitmap(shaderBounds, density, false);
      return dart.nullCheck(_engine['DomCanvasRenderingContext2DExtension|createPattern'](dart.nullCheck(ctx), imageBitmap, "no-repeat"));
    }
    [_createRadialFragmentShader](gradient, shaderBounds, tileMode) {
      if (gradient == null) dart.nullFailed(I[309], 587, 26, "gradient");
      if (shaderBounds == null) dart.nullFailed(I[309], 587, 44, "shaderBounds");
      if (tileMode == null) dart.nullFailed(I[309], 587, 70, "tileMode");
      let builder = new _engine.ShaderBuilder.fragment(_engine.webGLVersion);
      builder.floatPrecision = 1;
      builder.addIn(11, {name: "v_color"});
      builder.addUniform(9, {name: "u_resolution"});
      builder.addUniform(9, {name: "u_tile_offset"});
      builder.addUniform(2, {name: "u_radius"});
      builder.addUniform(14, {name: "m_gradient"});
      let fragColor = builder.fragmentColor;
      let method = builder.addMethod("main");
      method.addStatement("vec2 center = 0.5 * (u_resolution + u_tile_offset);");
      method.addStatement("vec4 localCoord = m_gradient * vec4(gl_FragCoord.x - center.x, center.y - gl_FragCoord.y, 0, 1);");
      method.addStatement("float dist = length(localCoord);");
      method.addStatement("float st = abs(dist / u_radius);");
      let probeName = _engine._writeSharedGradientShader(builder, method, gradient, tileMode);
      method.addStatement(dart.str(fragColor.name) + " = " + dart.str(probeName) + " * scale + bias;");
      let shader = builder.build();
      return shader;
    }
  };
  (_engine.GradientRadial.new = function(center, radius, colors, colorStops, tileMode, matrix4) {
    if (center == null) dart.nullFailed(I[309], 473, 23, "center");
    if (radius == null) dart.nullFailed(I[309], 473, 36, "radius");
    if (colors == null) dart.nullFailed(I[309], 473, 49, "colors");
    if (tileMode == null) dart.nullFailed(I[309], 474, 12, "tileMode");
    this[center$3] = center;
    this[radius$2] = radius;
    this[colors$6] = colors;
    this[colorStops$5] = colorStops;
    this[tileMode$5] = tileMode;
    this[matrix4$7] = matrix4;
    dart.global.Object.getPrototypeOf(_engine.GradientRadial).__.call(this);
    ;
  }).prototype = _engine.GradientRadial.prototype;
  dart.addRtiResources(_engine.GradientRadial, ["_engine|GradientRadial"]);
  dart.setMethodSignature(_engine.GradientRadial, () => dart.global.Object.setPrototypeOf({
    createPaintStyle: T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToObject(),
    [_createCanvasGradient]: T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToObject(),
    createImageBitmap: T$11.RectNAnddoubleAndboolToObject(),
    [_createGlGradient]: T$11.DomCanvasRenderingContext2DNAndRectNAnddoubleToDomCanvasPattern(),
    [_createRadialFragmentShader]: T$11.NormalizedGradientAndRectAndTileModeToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.GradientRadial))));
  dart.setLibraryUri(_engine.GradientRadial, I[220]);
  dart.setFieldSignature(_engine.GradientRadial, () => dart.global.Object.setPrototypeOf({
    center: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    radius: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    colors: {type: T$10.ListOfColor(), isConst: false, isFinal: true, libraryUri: I[11]},
    colorStops: {type: T$10.ListNOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    tileMode: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]},
    matrix4: {type: T$5.Float32ListN(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.GradientRadial))));
  var focal$0 = dart.privateName(_engine, "GradientConical.focal");
  var focalRadius$0 = dart.privateName(_engine, "GradientConical.focalRadius");
  _engine.GradientConical = class GradientConical extends _engine.GradientRadial {
    get focal() {
      return this[focal$0];
    }
    set focal(value) {
      super.focal = value;
    }
    get focalRadius() {
      return this[focalRadius$0];
    }
    set focalRadius(value) {
      super.focalRadius = value;
    }
    static ['_#new#tearOff'](focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix4) {
      if (focal == null) dart.nullFailed(I[309], 615, 12, "focal");
      if (focalRadius == null) dart.nullFailed(I[309], 616, 12, "focalRadius");
      if (center == null) dart.nullFailed(I[309], 617, 17, "center");
      if (radius == null) dart.nullFailed(I[309], 618, 14, "radius");
      if (colors == null) dart.nullFailed(I[309], 619, 22, "colors");
      if (tileMode == null) dart.nullFailed(I[309], 621, 19, "tileMode");
      return new _engine.GradientConical.new(focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix4);
    }
    createPaintStyle(ctx, shaderBounds, density) {
      if (density == null) dart.nullFailed(I[309], 630, 37, "density");
      if ((this.tileMode == ui.TileMode.clamp || this.tileMode == ui.TileMode.decal) && this.focalRadius === 0.0 && dart.equals(this.focal, ui.Offset.zero)) {
        return this[_createCanvasGradient](ctx, shaderBounds, density);
      } else {
        _engine.initWebGl();
        return this[_createGlGradient](ctx, shaderBounds, density);
      }
    }
    [_createRadialFragmentShader](gradient, shaderBounds, tileMode) {
      if (gradient == null) dart.nullFailed(I[309], 643, 26, "gradient");
      if (shaderBounds == null) dart.nullFailed(I[309], 643, 44, "shaderBounds");
      if (tileMode == null) dart.nullFailed(I[309], 643, 70, "tileMode");
      let centerDistanceX = dart.notNull(this.center.dx) - dart.notNull(this.focal.dx);
      let centerDistanceY = dart.notNull(this.center.dy) - dart.notNull(this.focal.dy);
      let centerDistanceSq = centerDistanceX * centerDistanceX + centerDistanceY * centerDistanceY;
      if (centerDistanceSq < 1.4210854822304103e-14) {
        return super[_createRadialFragmentShader](gradient, shaderBounds, tileMode);
      }
      let centerDistance = math.sqrt(centerDistanceSq);
      let r0 = dart.notNull(this.focalRadius) / centerDistance;
      let r1 = dart.notNull(this.radius) / centerDistance;
      let fFocalX = r0 / (r0 - r1);
      if ((fFocalX - 1)[$abs]() < 0.000244140625) {
        let temp = r0;
        r0 = r1;
        r1 = temp;
        fFocalX = 0.0;
      }
      let builder = new _engine.ShaderBuilder.fragment(_engine.webGLVersion);
      builder.floatPrecision = 1;
      builder.addIn(11, {name: "v_color"});
      builder.addUniform(9, {name: "u_resolution"});
      builder.addUniform(9, {name: "u_tile_offset"});
      builder.addUniform(2, {name: "u_radius"});
      builder.addUniform(14, {name: "m_gradient"});
      let fragColor = builder.fragmentColor;
      let method = builder.addMethod("main");
      method.addStatement("vec2 center = 0.5 * (u_resolution + u_tile_offset);");
      method.addStatement("vec4 localCoord = m_gradient * vec4(gl_FragCoord.x - center.x, center.y - gl_FragCoord.y, 0, 1);");
      method.addStatement("float dist = length(localCoord);");
      let f = (dart.notNull(this.focalRadius) / (math.min(T$.double(), shaderBounds.width, shaderBounds.height) / 2.0))[$toStringAsPrecision](8);
      method.addStatement(this.focalRadius === 0.0 ? "float st = dist / u_radius;" : "float st = ((dist / u_radius) - " + f + ") / (1.0 - " + f + ");");
      if (tileMode == ui.TileMode.clamp) {
        method.addStatement("if (st < 0.0) { st = -1.0; }");
      }
      let probeName = _engine._writeSharedGradientShader(builder, method, gradient, tileMode);
      method.addStatement(dart.str(fragColor.name) + " = " + dart.str(probeName) + " * scale + bias;");
      return builder.build();
    }
  };
  (_engine.GradientConical.new = function(focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix4) {
    if (focal == null) dart.nullFailed(I[309], 615, 12, "focal");
    if (focalRadius == null) dart.nullFailed(I[309], 616, 12, "focalRadius");
    if (center == null) dart.nullFailed(I[309], 617, 17, "center");
    if (radius == null) dart.nullFailed(I[309], 618, 14, "radius");
    if (colors == null) dart.nullFailed(I[309], 619, 22, "colors");
    if (tileMode == null) dart.nullFailed(I[309], 621, 19, "tileMode");
    this[focal$0] = focal;
    this[focalRadius$0] = focalRadius;
    dart.global.Object.getPrototypeOf(_engine.GradientConical).new.call(this, center, radius, colors, colorStops, tileMode, matrix4);
    ;
  }).prototype = _engine.GradientConical.prototype;
  dart.addRtiResources(_engine.GradientConical, ["_engine|GradientConical"]);
  dart.setLibraryUri(_engine.GradientConical, I[220]);
  dart.setFieldSignature(_engine.GradientConical, () => dart.global.Object.setPrototypeOf({
    focal: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]},
    focalRadius: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.GradientConical))));
  _engine.EngineImageFilter = class EngineImageFilter extends core.Object {
    static ['_#blur#tearOff'](opts) {
      let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : 0;
      if (sigmaX == null) dart.nullFailed(I[309], 702, 21, "sigmaX");
      let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : 0;
      if (sigmaY == null) dart.nullFailed(I[309], 703, 21, "sigmaY");
      let tileMode = opts && 'tileMode' in opts ? opts.tileMode : C[586] || CT.C586;
      if (tileMode == null) dart.nullFailed(I[309], 704, 26, "tileMode");
      return new _engine._BlurEngineImageFilter.new({sigmaX: sigmaX, sigmaY: sigmaY, tileMode: tileMode});
    }
    static ['_#matrix#tearOff'](opts) {
      let matrix = opts && 'matrix' in opts ? opts.matrix : null;
      if (matrix == null) dart.nullFailed(I[309], 708, 26, "matrix");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : null;
      if (filterQuality == null) dart.nullFailed(I[309], 709, 31, "filterQuality");
      return new _engine._MatrixEngineImageFilter.new({matrix: matrix, filterQuality: filterQuality});
    }
    get filterAttribute() {
      return "";
    }
    get transformAttribute() {
      return "";
    }
  };
  (_engine.EngineImageFilter.__ = function() {
    ;
  }).prototype = _engine.EngineImageFilter.prototype;
  dart.addRtiResources(_engine.EngineImageFilter, ["_engine|EngineImageFilter", "ui|ImageFilter"]);
  dart.setStaticMethodSignature(_engine.EngineImageFilter, () => ['blur', 'matrix']);
  dart.setGetterSignature(_engine.EngineImageFilter, () => dart.global.Object.setPrototypeOf({
    filterAttribute: T$.String(),
    transformAttribute: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineImageFilter))));
  dart.setLibraryUri(_engine.EngineImageFilter, I[220]);
  _engine._BlurEngineImageFilter = class _BlurEngineImageFilter extends _engine.EngineImageFilter {
    static ['_#new#tearOff'](opts) {
      let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : 0;
      if (sigmaX == null) dart.nullFailed(I[309], 719, 33, "sigmaX");
      let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : 0;
      if (sigmaY == null) dart.nullFailed(I[309], 719, 52, "sigmaY");
      let tileMode = opts && 'tileMode' in opts ? opts.tileMode : C[586] || CT.C586;
      if (tileMode == null) dart.nullFailed(I[309], 719, 71, "tileMode");
      return new _engine._BlurEngineImageFilter.new({sigmaX: sigmaX, sigmaY: sigmaY, tileMode: tileMode});
    }
    get filterAttribute() {
      return _engine.blurSigmasToCssString(this.sigmaX, this.sigmaY);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$11._BlurEngineImageFilter()[_is](other) && other.tileMode == this.tileMode && other.sigmaX == this.sigmaX && other.sigmaY == this.sigmaY;
    }
    get hashCode() {
      return core.Object.hash(this.sigmaX, this.sigmaY, this.tileMode);
    }
    toString() {
      return "ImageFilter.blur(" + dart.str(this.sigmaX) + ", " + dart.str(this.sigmaY) + ", " + dart.str(_engine.tileModeString(this.tileMode)) + ")";
    }
  };
  (_engine._BlurEngineImageFilter.new = function(opts) {
    let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : 0;
    if (sigmaX == null) dart.nullFailed(I[309], 719, 33, "sigmaX");
    let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : 0;
    if (sigmaY == null) dart.nullFailed(I[309], 719, 52, "sigmaY");
    let tileMode = opts && 'tileMode' in opts ? opts.tileMode : C[586] || CT.C586;
    if (tileMode == null) dart.nullFailed(I[309], 719, 71, "tileMode");
    this.sigmaX = sigmaX;
    this.sigmaY = sigmaY;
    this.tileMode = tileMode;
    dart.global.Object.getPrototypeOf(_engine._BlurEngineImageFilter).__.call(this);
    ;
  }).prototype = _engine._BlurEngineImageFilter.prototype;
  dart.addRtiResources(_engine._BlurEngineImageFilter, ["_engine|_BlurEngineImageFilter"]);
  dart.setLibraryUri(_engine._BlurEngineImageFilter, I[220]);
  dart.setFieldSignature(_engine._BlurEngineImageFilter, () => dart.global.Object.setPrototypeOf({
    sigmaX: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    sigmaY: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    tileMode: {type: T$9.TileMode(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._BlurEngineImageFilter))));
  dart.defineExtensionMethods(_engine._BlurEngineImageFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine._BlurEngineImageFilter, ['hashCode']);
  _engine._MatrixEngineImageFilter = class _MatrixEngineImageFilter extends _engine.EngineImageFilter {
    static ['_#new#tearOff'](opts) {
      let matrix = opts && 'matrix' in opts ? opts.matrix : null;
      if (matrix == null) dart.nullFailed(I[309], 750, 51, "matrix");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : null;
      if (filterQuality == null) dart.nullFailed(I[309], 750, 73, "filterQuality");
      return new _engine._MatrixEngineImageFilter.new({matrix: matrix, filterQuality: filterQuality});
    }
    get transformAttribute() {
      return _engine.float64ListToCssTransform(this.webMatrix);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$11._MatrixEngineImageFilter()[_is](other) && other.filterQuality == this.filterQuality && dart.test(_engine.listEquals(T$.double(), other.webMatrix, this.webMatrix));
    }
    get hashCode() {
      return core.Object.hash(core.Object.hashAll(this.webMatrix), this.filterQuality);
    }
    toString() {
      return "ImageFilter.matrix(" + dart.str(this.webMatrix) + ", " + dart.str(this.filterQuality) + ")";
    }
  };
  (_engine._MatrixEngineImageFilter.new = function(opts) {
    let matrix = opts && 'matrix' in opts ? opts.matrix : null;
    if (matrix == null) dart.nullFailed(I[309], 750, 51, "matrix");
    let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : null;
    if (filterQuality == null) dart.nullFailed(I[309], 750, 73, "filterQuality");
    this.filterQuality = filterQuality;
    this.webMatrix = _native_typed_data.NativeFloat64List.fromList(matrix);
    dart.global.Object.getPrototypeOf(_engine._MatrixEngineImageFilter).__.call(this);
    ;
  }).prototype = _engine._MatrixEngineImageFilter.prototype;
  dart.addRtiResources(_engine._MatrixEngineImageFilter, ["_engine|_MatrixEngineImageFilter"]);
  dart.setLibraryUri(_engine._MatrixEngineImageFilter, I[220]);
  dart.setFieldSignature(_engine._MatrixEngineImageFilter, () => dart.global.Object.setPrototypeOf({
    webMatrix: {type: T$0.Float64List(), isConst: false, isFinal: true, libraryUri: I[43]},
    filterQuality: {type: T$9.FilterQuality(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._MatrixEngineImageFilter))));
  dart.defineExtensionMethods(_engine._MatrixEngineImageFilter, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine._MatrixEngineImageFilter, ['hashCode']);
  var filterId = dart.privateName(_engine, "EngineHtmlColorFilter.filterId");
  _engine.EngineHtmlColorFilter = class EngineHtmlColorFilter extends core.Object {
    get filterId() {
      return this[filterId];
    }
    set filterId(value) {
      this[filterId] = value;
    }
    get filterAttribute() {
      return this.filterId != null ? "url(#" + dart.str(this.filterId) + ")" : "";
    }
    get transformAttribute() {
      return "";
    }
  };
  (_engine.EngineHtmlColorFilter.new = function() {
    this[filterId] = null;
    ;
  }).prototype = _engine.EngineHtmlColorFilter.prototype;
  dart.addRtiResources(_engine.EngineHtmlColorFilter, ["_engine|EngineHtmlColorFilter", "_engine|EngineImageFilter", "ui|ImageFilter"]);
  dart.setGetterSignature(_engine.EngineHtmlColorFilter, () => dart.global.Object.setPrototypeOf({
    filterAttribute: T$.String(),
    transformAttribute: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineHtmlColorFilter))));
  dart.setLibraryUri(_engine.EngineHtmlColorFilter, I[220]);
  dart.setFieldSignature(_engine.EngineHtmlColorFilter, () => dart.global.Object.setPrototypeOf({filterId: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineHtmlColorFilter))));
  var color$5 = dart.privateName(_engine, "ModeHtmlColorFilter.color");
  var blendMode$6 = dart.privateName(_engine, "ModeHtmlColorFilter.blendMode");
  _engine.ModeHtmlColorFilter = class ModeHtmlColorFilter extends _engine.EngineHtmlColorFilter {
    get color() {
      return this[color$5];
    }
    set color(value) {
      super.color = value;
    }
    get blendMode() {
      return this[blendMode$6];
    }
    set blendMode(value) {
      if (value == null) dart.nullFailed(I[309], 804, 16, "blendMode");
      this[blendMode$6] = value;
    }
    static ['_#new#tearOff'](color, blendMode) {
      if (color == null) dart.nullFailed(I[309], 801, 28, "color");
      if (blendMode == null) dart.nullFailed(I[309], 801, 40, "blendMode");
      return new _engine.ModeHtmlColorFilter.new(color, blendMode);
    }
    makeSvgFilter(filterElement) {
      switch (this.blendMode) {
        case C[552] || CT.C552:
        case C[560] || CT.C560:
        case C[559] || CT.C559:
          {
            _engine['DomCSSStyleDeclarationExtension|set#visibility'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(filterElement), "style"), "hidden");
            return null;
          }
        case C[554] || CT.C554:
        case C[558] || CT.C558:
          {
            return null;
          }
        case C[553] || CT.C553:
        case C[555] || CT.C555:
          {
            this.blendMode = ui.BlendMode.srcIn;
            break;
          }
        case C[556] || CT.C556:
        case C[557] || CT.C557:
        case C[561] || CT.C561:
        case C[562] || CT.C562:
        case C[563] || CT.C563:
        case C[564] || CT.C564:
        case C[565] || CT.C565:
        case C[566] || CT.C566:
        case C[567] || CT.C567:
        case C[568] || CT.C568:
        case C[569] || CT.C569:
        case C[570] || CT.C570:
        case C[571] || CT.C571:
        case C[572] || CT.C572:
        case C[573] || CT.C573:
        case C[574] || CT.C574:
        case C[575] || CT.C575:
        case C[576] || CT.C576:
        case C[577] || CT.C577:
        case C[578] || CT.C578:
        case C[579] || CT.C579:
        case C[580] || CT.C580:
          {
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
      let svgFilter = _engine.svgFilterFromBlendMode(this.color, this.blendMode);
      _engine.ResourceManager.instance.addResource(svgFilter.element);
      this.filterId = svgFilter.id;
      if (this.blendMode == ui.BlendMode.saturation || this.blendMode == ui.BlendMode.multiply || this.blendMode == ui.BlendMode.modulate) {
        _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(filterElement), "style"), _engine['CssColor|toCssString'](this.color));
      }
      return svgFilter.element;
    }
  };
  (_engine.ModeHtmlColorFilter.new = function(color, blendMode) {
    if (color == null) dart.nullFailed(I[309], 801, 28, "color");
    if (blendMode == null) dart.nullFailed(I[309], 801, 40, "blendMode");
    this[color$5] = color;
    this[blendMode$6] = blendMode;
    dart.global.Object.getPrototypeOf(_engine.ModeHtmlColorFilter).new.call(this);
    ;
  }).prototype = _engine.ModeHtmlColorFilter.prototype;
  dart.addRtiResources(_engine.ModeHtmlColorFilter, ["_engine|ModeHtmlColorFilter"]);
  dart.setMethodSignature(_engine.ModeHtmlColorFilter, () => dart.global.Object.setPrototypeOf({makeSvgFilter: T$11.DomElementNToDomElementN()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ModeHtmlColorFilter))));
  dart.setLibraryUri(_engine.ModeHtmlColorFilter, I[220]);
  dart.setFieldSignature(_engine.ModeHtmlColorFilter, () => dart.global.Object.setPrototypeOf({
    color: {type: T$8.Color(), isConst: false, isFinal: true, libraryUri: I[198]},
    blendMode: {type: T$8.BlendMode(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ModeHtmlColorFilter))));
  var matrix$2 = dart.privateName(_engine, "MatrixHtmlColorFilter.matrix");
  _engine.MatrixHtmlColorFilter = class MatrixHtmlColorFilter extends _engine.EngineHtmlColorFilter {
    get matrix() {
      return this[matrix$2];
    }
    set matrix(value) {
      super.matrix = value;
    }
    static ['_#new#tearOff'](matrix) {
      if (matrix == null) dart.nullFailed(I[309], 863, 30, "matrix");
      return new _engine.MatrixHtmlColorFilter.new(matrix);
    }
    makeSvgFilter(filterElement) {
      let svgFilter = _engine.svgFilterFromColorMatrix(this.matrix);
      _engine.ResourceManager.instance.addResource(svgFilter.element);
      this.filterId = svgFilter.id;
      return svgFilter.element;
    }
  };
  (_engine.MatrixHtmlColorFilter.new = function(matrix) {
    if (matrix == null) dart.nullFailed(I[309], 863, 30, "matrix");
    this[matrix$2] = matrix;
    dart.global.Object.getPrototypeOf(_engine.MatrixHtmlColorFilter).new.call(this);
    ;
  }).prototype = _engine.MatrixHtmlColorFilter.prototype;
  dart.addRtiResources(_engine.MatrixHtmlColorFilter, ["_engine|MatrixHtmlColorFilter"]);
  dart.setMethodSignature(_engine.MatrixHtmlColorFilter, () => dart.global.Object.setPrototypeOf({makeSvgFilter: T$11.DomNodeNToDomElementN()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MatrixHtmlColorFilter))));
  dart.setLibraryUri(_engine.MatrixHtmlColorFilter, I[220]);
  dart.setFieldSignature(_engine.MatrixHtmlColorFilter, () => dart.global.Object.setPrototypeOf({matrix: {type: T$9.ListOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MatrixHtmlColorFilter))));
  var version$0 = dart.privateName(_engine, "ShaderBuilder.version");
  var declarations = dart.privateName(_engine, "ShaderBuilder.declarations");
  var integerPrecision = dart.privateName(_engine, "ShaderBuilder.integerPrecision");
  var floatPrecision = dart.privateName(_engine, "ShaderBuilder.floatPrecision");
  var isWebGl2 = dart.privateName(_engine, "ShaderBuilder.isWebGl2");
  var _methods = dart.privateName(_engine, "_methods");
  var _attribCounter = dart.privateName(_engine, "_attribCounter");
  var _varyingCounter = dart.privateName(_engine, "_varyingCounter");
  var _uniformCounter = dart.privateName(_engine, "_uniformCounter");
  var _constCounter = dart.privateName(_engine, "_constCounter");
  var _fragmentColorDeclaration = dart.privateName(_engine, "_fragmentColorDeclaration");
  var _isFragmentShader = dart.privateName(_engine, "_isFragmentShader");
  var _writeVariableDeclaration = dart.privateName(_engine, "_writeVariableDeclaration");
  var _precisionToString = dart.privateName(_engine, "_precisionToString");
  _engine.ShaderBuilder = class ShaderBuilder extends core.Object {
    get version() {
      return this[version$0];
    }
    set version(value) {
      super.version = value;
    }
    get declarations() {
      return this[declarations];
    }
    set declarations(value) {
      super.declarations = value;
    }
    get integerPrecision() {
      return this[integerPrecision];
    }
    set integerPrecision(value) {
      this[integerPrecision] = value;
    }
    get floatPrecision() {
      return this[floatPrecision];
    }
    set floatPrecision(value) {
      this[floatPrecision] = value;
    }
    get isWebGl2() {
      return this[isWebGl2];
    }
    set isWebGl2(value) {
      super.isWebGl2 = value;
    }
    static ['_#new#tearOff'](version) {
      if (version == null) dart.nullFailed(I[310], 29, 22, "version");
      return new _engine.ShaderBuilder.new(version);
    }
    static ['_#fragment#tearOff'](version) {
      if (version == null) dart.nullFailed(I[310], 32, 31, "version");
      return new _engine.ShaderBuilder.fragment(version);
    }
    get fragmentColor() {
      this[_fragmentColorDeclaration] == null ? this[_fragmentColorDeclaration] = new _engine.ShaderDeclaration.new(dart.test(this.isWebGl2) ? "gFragColor" : "gl_FragColor", 11, 3) : null;
      return dart.nullCheck(this[_fragmentColorDeclaration]);
    }
    addIn(dataType, opts) {
      let t$36560, t$36559;
      if (dataType == null) dart.nullFailed(I[310], 83, 31, "dataType");
      let name = opts && 'name' in opts ? opts.name : null;
      let attrib = new _engine.ShaderDeclaration.new((t$36559 = name, t$36559 == null ? "attr_" + dart.str((t$36560 = this[_attribCounter], this[_attribCounter] = dart.notNull(t$36560) + 1, t$36560)) : t$36559), dataType, 1);
      this.declarations[$add](attrib);
      return attrib;
    }
    addConst(dataType, value, opts) {
      let t$36560, t$36559;
      if (dataType == null) dart.nullFailed(I[310], 93, 34, "dataType");
      if (value == null) dart.nullFailed(I[310], 93, 51, "value");
      let name = opts && 'name' in opts ? opts.name : null;
      let declaration = new _engine.ShaderDeclaration.constant((t$36559 = name, t$36559 == null ? "c_" + dart.str((t$36560 = this[_constCounter], this[_constCounter] = dart.notNull(t$36560) + 1, t$36560)) : t$36559), dataType, value);
      this.declarations[$add](declaration);
      return declaration;
    }
    addUniform(dataType, opts) {
      let t$36560, t$36559;
      if (dataType == null) dart.nullFailed(I[310], 105, 36, "dataType");
      let name = opts && 'name' in opts ? opts.name : null;
      let uniform = new _engine.ShaderDeclaration.new((t$36559 = name, t$36559 == null ? "uni_" + dart.str((t$36560 = this[_uniformCounter], this[_uniformCounter] = dart.notNull(t$36560) + 1, t$36560)) : t$36559), dataType, 2);
      this.declarations[$add](uniform);
      return uniform;
    }
    addOut(dataType, opts) {
      let t$36560, t$36559;
      if (dataType == null) dart.nullFailed(I[310], 120, 32, "dataType");
      let name = opts && 'name' in opts ? opts.name : null;
      let varying = new _engine.ShaderDeclaration.new((t$36559 = name, t$36559 == null ? "output_" + dart.str((t$36560 = this[_varyingCounter], this[_varyingCounter] = dart.notNull(t$36560) + 1, t$36560)) : t$36559), dataType, 3);
      this.declarations[$add](varying);
      return varying;
    }
    [_writeVariableDeclaration](sb, variable) {
      if (sb == null) dart.nullFailed(I[310], 129, 47, "sb");
      if (variable == null) dart.nullFailed(I[310], 129, 69, "variable");
      switch (variable.storage) {
        case 0:
          {
            this[_buffer$1].write("const ");
            break;
          }
        case 1:
          {
            this[_buffer$1].write(dart.test(this.isWebGl2) ? "in " : dart.test(this[_isFragmentShader]) ? "varying " : "attribute ");
            break;
          }
        case 2:
          {
            this[_buffer$1].write("uniform ");
            break;
          }
        case 3:
          {
            this[_buffer$1].write(dart.test(this.isWebGl2) ? "out " : "varying ");
          }
      }
      this[_buffer$1].write(dart.str(_engine.ShaderBuilder.typeToString(variable.dataType)) + " " + dart.str(variable.name));
      if (variable.storage === 0) {
        this[_buffer$1].write(" = " + dart.str(variable.constValue));
      }
      this[_buffer$1].writeln(";");
    }
    static typeToString(dataType) {
      if (dataType == null) dart.nullFailed(I[310], 150, 34, "dataType");
      switch (dataType) {
        case 0:
          {
            return "bool";
          }
        case 1:
          {
            return "int";
          }
        case 2:
          {
            return "float";
          }
        case 3:
          {
            return "bvec2";
          }
        case 4:
          {
            return "bvec3";
          }
        case 5:
          {
            return "bvec4";
          }
        case 6:
          {
            return "ivec2";
          }
        case 7:
          {
            return "ivec3";
          }
        case 8:
          {
            return "ivec4";
          }
        case 9:
          {
            return "vec2";
          }
        case 10:
          {
            return "vec3";
          }
        case 11:
          {
            return "vec4";
          }
        case 12:
          {
            return "mat2";
          }
        case 13:
          {
            return "mat3";
          }
        case 14:
          {
            return "mat4";
          }
        case 15:
          {
            return "sampler1D";
          }
        case 16:
          {
            return "sampler2D";
          }
        case 17:
          {
            return "sampler3D";
          }
        case 18:
          {
            return "void";
          }
      }
      dart.throw(new core.ArgumentError.new());
    }
    addMethod(name) {
      if (name == null) dart.nullFailed(I[310], 194, 33, "name");
      let method = new _engine.ShaderMethod.new(name);
      this[_methods][$add](method);
      return method;
    }
    build() {
      if (dart.test(this.isWebGl2)) {
        this[_buffer$1].writeln("#version 300 es");
      }
      if (this.integerPrecision != null) {
        this[_buffer$1].writeln("precision " + dart.str(this[_precisionToString](dart.nullCheck(this.integerPrecision))) + " int;");
      }
      if (this.floatPrecision != null) {
        this[_buffer$1].writeln("precision " + dart.str(this[_precisionToString](dart.nullCheck(this.floatPrecision))) + " float;");
      }
      if (dart.test(this.isWebGl2) && this[_fragmentColorDeclaration] != null) {
        this[_writeVariableDeclaration](this[_buffer$1], dart.nullCheck(this[_fragmentColorDeclaration]));
      }
      for (let decl of this.declarations) {
        this[_writeVariableDeclaration](this[_buffer$1], decl);
      }
      for (let method of this[_methods]) {
        method.write(this[_buffer$1]);
      }
      return dart.toString(this[_buffer$1]);
    }
    [_precisionToString](precision) {
      if (precision == null) dart.nullFailed(I[310], 226, 33, "precision");
      return precision === 0 ? "lowp" : precision === 1 ? "mediump" : "highp";
    }
    get texture2DFunction() {
      return dart.test(this.isWebGl2) ? "texture" : "texture2D";
    }
  };
  (_engine.ShaderBuilder.new = function(version) {
    if (version == null) dart.nullFailed(I[310], 29, 22, "version");
    this[declarations] = G$.JSArrayOfShaderDeclaration().of([]);
    this[_methods] = G$.JSArrayOfShaderMethod().of([]);
    this[integerPrecision] = null;
    this[floatPrecision] = null;
    this[_attribCounter] = 0;
    this[_varyingCounter] = 0;
    this[_uniformCounter] = 0;
    this[_constCounter] = 0;
    this[_fragmentColorDeclaration] = null;
    this[_buffer$1] = new core.StringBuffer.new();
    this[version$0] = version;
    this[isWebGl2] = version === 2;
    this[_isFragmentShader] = false;
    ;
  }).prototype = _engine.ShaderBuilder.prototype;
  (_engine.ShaderBuilder.fragment = function(version) {
    if (version == null) dart.nullFailed(I[310], 32, 31, "version");
    this[declarations] = G$.JSArrayOfShaderDeclaration().of([]);
    this[_methods] = G$.JSArrayOfShaderMethod().of([]);
    this[integerPrecision] = null;
    this[floatPrecision] = null;
    this[_attribCounter] = 0;
    this[_varyingCounter] = 0;
    this[_uniformCounter] = 0;
    this[_constCounter] = 0;
    this[_fragmentColorDeclaration] = null;
    this[_buffer$1] = new core.StringBuffer.new();
    this[version$0] = version;
    this[isWebGl2] = version === 2;
    this[_isFragmentShader] = true;
    ;
  }).prototype = _engine.ShaderBuilder.prototype;
  dart.addRtiResources(_engine.ShaderBuilder, ["_engine|ShaderBuilder"]);
  dart.setMethodSignature(_engine.ShaderBuilder, () => dart.global.Object.setPrototypeOf({
    addIn: T$11.int__ToShaderDeclaration(),
    addConst: T$11.intAndString__ToShaderDeclaration(),
    addUniform: T$11.int__ToShaderDeclaration(),
    addOut: T$11.int__ToShaderDeclaration(),
    [_writeVariableDeclaration]: T$11.StringBufferAndShaderDeclarationTovoid(),
    addMethod: T$11.StringToShaderMethod(),
    build: T$.VoidToString(),
    [_precisionToString]: T$.intToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ShaderBuilder))));
  dart.setStaticMethodSignature(_engine.ShaderBuilder, () => ['typeToString']);
  dart.setGetterSignature(_engine.ShaderBuilder, () => dart.global.Object.setPrototypeOf({
    fragmentColor: T$11.ShaderDeclaration(),
    texture2DFunction: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ShaderBuilder))));
  dart.setLibraryUri(_engine.ShaderBuilder, I[220]);
  dart.setFieldSignature(_engine.ShaderBuilder, () => dart.global.Object.setPrototypeOf({
    version: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    declarations: {type: T$11.ListOfShaderDeclaration(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_methods]: {type: T$11.ListOfShaderMethod(), isConst: false, isFinal: true, libraryUri: I[11]},
    integerPrecision: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    floatPrecision: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_attribCounter]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_varyingCounter]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_uniformCounter]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_constCounter]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    isWebGl2: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_isFragmentShader]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fragmentColorDeclaration]: {type: T$11.ShaderDeclarationN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_buffer$1]: {type: T$2.StringBuffer(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ShaderBuilder))));
  dart.setStaticFieldSignature(_engine.ShaderBuilder, () => ['kOpenGlEs3Header']);
  dart.defineLazy(_engine.ShaderBuilder, {
    /*_engine.ShaderBuilder.kOpenGlEs3Header*/get kOpenGlEs3Header() {
      return "#version 300 es";
    }
  }, false);
  var returnType = dart.privateName(_engine, "ShaderMethod.returnType");
  var name$22 = dart.privateName(_engine, "ShaderMethod.name");
  var _statements = dart.privateName(_engine, "_statements");
  var _indentLevel$0 = dart.privateName(_engine, "_indentLevel");
  _engine.ShaderMethod = class ShaderMethod extends core.Object {
    get returnType() {
      return this[returnType];
    }
    set returnType(value) {
      super.returnType = value;
    }
    get name() {
      return this[name$22];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#new#tearOff'](name) {
      if (name == null) dart.nullFailed(I[310], 234, 21, "name");
      return new _engine.ShaderMethod.new(name);
    }
    indent() {
      this[_indentLevel$0] = dart.notNull(this[_indentLevel$0]) + 1;
    }
    unindent() {
      if (!(this[_indentLevel$0] !== 1)) dart.assertFailed(null, I[310], 246, 12, "_indentLevel != 1");
      this[_indentLevel$0] = dart.notNull(this[_indentLevel$0]) - 1;
    }
    addStatement(statement) {
      if (statement == null) dart.nullFailed(I[310], 250, 28, "statement");
      let itemToAdd = statement;
      if (!dart.test(dart.fn(() => {
        itemToAdd = "  "[$times](this[_indentLevel$0]) + dart.notNull(statement);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[310], 252, 12, "() {\n      itemToAdd = '  ' * _indentLevel + statement;\n      return true;\n    }()");
      this[_statements][$add](itemToAdd);
    }
    addTileStatements(source, destination, tileMode) {
      if (source == null) dart.nullFailed(I[310], 270, 33, "source");
      if (destination == null) dart.nullFailed(I[310], 270, 48, "destination");
      if (tileMode == null) dart.nullFailed(I[310], 271, 19, "tileMode");
      switch (tileMode) {
        case C[801] || CT.C801:
          {
            this.addStatement("float " + dart.str(destination) + " = fract(" + dart.str(source) + ");");
            break;
          }
        case C[802] || CT.C802:
          {
            this.addStatement("float " + dart.str(destination) + " = (" + dart.str(source) + " - 1.0);");
            this.addStatement(dart.str(destination) + " = " + "abs((" + dart.str(destination) + " - 2.0 * floor(" + dart.str(destination) + " * 0.5)) - 1.0);");
            break;
          }
        case C[586] || CT.C586:
        case C[803] || CT.C803:
          {
            this.addStatement("float " + dart.str(destination) + " = " + dart.str(source) + ";");
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
    write(buffer) {
      if (buffer == null) dart.nullFailed(I[310], 286, 27, "buffer");
      buffer.writeln(dart.str(this.returnType) + " " + dart.str(this.name) + "() {");
      this[_statements][$forEach](dart.bind(buffer, 'writeln'));
      buffer.writeln("}");
    }
  };
  (_engine.ShaderMethod.new = function(name) {
    if (name == null) dart.nullFailed(I[310], 234, 21, "name");
    this[returnType] = "void";
    this[_statements] = G.JSArrayOfString().of([]);
    this[_indentLevel$0] = 1;
    this[name$22] = name;
    ;
  }).prototype = _engine.ShaderMethod.prototype;
  dart.addRtiResources(_engine.ShaderMethod, ["_engine|ShaderMethod"]);
  dart.setMethodSignature(_engine.ShaderMethod, () => dart.global.Object.setPrototypeOf({
    indent: T$.VoidTovoid(),
    unindent: T$.VoidTovoid(),
    addStatement: T$.StringTovoid(),
    addTileStatements: T$11.StringAndStringAndTileModeTovoid(),
    write: T$10.StringBufferTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ShaderMethod))));
  dart.setLibraryUri(_engine.ShaderMethod, I[220]);
  dart.setFieldSignature(_engine.ShaderMethod, () => dart.global.Object.setPrototypeOf({
    returnType: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_statements]: {type: T$0.ListOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_indentLevel$0]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ShaderMethod))));
  _engine.ShaderType = class ShaderType extends core.Object {};
  (_engine.ShaderType.new = function() {
    ;
  }).prototype = _engine.ShaderType.prototype;
  dart.addRtiResources(_engine.ShaderType, ["_engine|ShaderType"]);
  dart.setLibraryUri(_engine.ShaderType, I[220]);
  dart.setStaticFieldSignature(_engine.ShaderType, () => ['kBool', 'kInt', 'kFloat', 'kBVec2', 'kBVec3', 'kBVec4', 'kIVec2', 'kIVec3', 'kIVec4', 'kVec2', 'kVec3', 'kVec4', 'kMat2', 'kMat3', 'kMat4', 'kSampler1D', 'kSampler2D', 'kSampler3D', 'kVoid']);
  dart.defineLazy(_engine.ShaderType, {
    /*_engine.ShaderType.kBool*/get kBool() {
      return 0;
    },
    /*_engine.ShaderType.kInt*/get kInt() {
      return 1;
    },
    /*_engine.ShaderType.kFloat*/get kFloat() {
      return 2;
    },
    /*_engine.ShaderType.kBVec2*/get kBVec2() {
      return 3;
    },
    /*_engine.ShaderType.kBVec3*/get kBVec3() {
      return 4;
    },
    /*_engine.ShaderType.kBVec4*/get kBVec4() {
      return 5;
    },
    /*_engine.ShaderType.kIVec2*/get kIVec2() {
      return 6;
    },
    /*_engine.ShaderType.kIVec3*/get kIVec3() {
      return 7;
    },
    /*_engine.ShaderType.kIVec4*/get kIVec4() {
      return 8;
    },
    /*_engine.ShaderType.kVec2*/get kVec2() {
      return 9;
    },
    /*_engine.ShaderType.kVec3*/get kVec3() {
      return 10;
    },
    /*_engine.ShaderType.kVec4*/get kVec4() {
      return 11;
    },
    /*_engine.ShaderType.kMat2*/get kMat2() {
      return 12;
    },
    /*_engine.ShaderType.kMat3*/get kMat3() {
      return 13;
    },
    /*_engine.ShaderType.kMat4*/get kMat4() {
      return 14;
    },
    /*_engine.ShaderType.kSampler1D*/get kSampler1D() {
      return 15;
    },
    /*_engine.ShaderType.kSampler2D*/get kSampler2D() {
      return 16;
    },
    /*_engine.ShaderType.kSampler3D*/get kSampler3D() {
      return 17;
    },
    /*_engine.ShaderType.kVoid*/get kVoid() {
      return 18;
    }
  }, false);
  _engine.ShaderPrecision = class ShaderPrecision extends core.Object {};
  (_engine.ShaderPrecision.new = function() {
    ;
  }).prototype = _engine.ShaderPrecision.prototype;
  dart.addRtiResources(_engine.ShaderPrecision, ["_engine|ShaderPrecision"]);
  dart.setLibraryUri(_engine.ShaderPrecision, I[220]);
  dart.setStaticFieldSignature(_engine.ShaderPrecision, () => ['kLow', 'kMedium', 'kHigh']);
  dart.defineLazy(_engine.ShaderPrecision, {
    /*_engine.ShaderPrecision.kLow*/get kLow() {
      return 0;
    },
    /*_engine.ShaderPrecision.kMedium*/get kMedium() {
      return 1;
    },
    /*_engine.ShaderPrecision.kHigh*/get kHigh() {
      return 2;
    }
  }, false);
  _engine.ShaderStorageQualifier = class ShaderStorageQualifier extends core.Object {};
  (_engine.ShaderStorageQualifier.new = function() {
    ;
  }).prototype = _engine.ShaderStorageQualifier.prototype;
  dart.addRtiResources(_engine.ShaderStorageQualifier, ["_engine|ShaderStorageQualifier"]);
  dart.setLibraryUri(_engine.ShaderStorageQualifier, I[220]);
  dart.setStaticFieldSignature(_engine.ShaderStorageQualifier, () => ['kConst', 'kAttribute', 'kUniform', 'kVarying']);
  dart.defineLazy(_engine.ShaderStorageQualifier, {
    /*_engine.ShaderStorageQualifier.kConst*/get kConst() {
      return 0;
    },
    /*_engine.ShaderStorageQualifier.kAttribute*/get kAttribute() {
      return 1;
    },
    /*_engine.ShaderStorageQualifier.kUniform*/get kUniform() {
      return 2;
    },
    /*_engine.ShaderStorageQualifier.kVarying*/get kVarying() {
      return 3;
    }
  }, false);
  var name$23 = dart.privateName(_engine, "ShaderDeclaration.name");
  var dataType$ = dart.privateName(_engine, "ShaderDeclaration.dataType");
  var storage$ = dart.privateName(_engine, "ShaderDeclaration.storage");
  var constValue$ = dart.privateName(_engine, "ShaderDeclaration.constValue");
  _engine.ShaderDeclaration = class ShaderDeclaration extends core.Object {
    get name() {
      return this[name$23];
    }
    set name(value) {
      super.name = value;
    }
    get dataType() {
      return this[dataType$];
    }
    set dataType(value) {
      super.dataType = value;
    }
    get storage() {
      return this[storage$];
    }
    set storage(value) {
      super.storage = value;
    }
    get constValue() {
      return this[constValue$];
    }
    set constValue(value) {
      super.constValue = value;
    }
    static ['_#new#tearOff'](name, dataType, storage) {
      if (name == null) dart.nullFailed(I[310], 340, 26, "name");
      if (dataType == null) dart.nullFailed(I[310], 340, 37, "dataType");
      if (storage == null) dart.nullFailed(I[310], 340, 52, "storage");
      return new _engine.ShaderDeclaration.new(name, dataType, storage);
    }
    static ['_#constant#tearOff'](name, dataType, constValue) {
      if (name == null) dart.nullFailed(I[310], 345, 35, "name");
      if (dataType == null) dart.nullFailed(I[310], 345, 46, "dataType");
      if (constValue == null) dart.nullFailed(I[310], 345, 61, "constValue");
      return new _engine.ShaderDeclaration.constant(name, dataType, constValue);
    }
  };
  (_engine.ShaderDeclaration.new = function(name, dataType, storage) {
    if (name == null) dart.nullFailed(I[310], 340, 26, "name");
    if (dataType == null) dart.nullFailed(I[310], 340, 37, "dataType");
    if (storage == null) dart.nullFailed(I[310], 340, 52, "storage");
    this[name$23] = name;
    this[dataType$] = dataType;
    this[storage$] = storage;
    if (!!dart.test(_engine._isGLSLReservedWord(name))) dart.assertFailed(null, I[310], 341, 16, "!_isGLSLReservedWord(name)");
    this[constValue$] = "";
    ;
  }).prototype = _engine.ShaderDeclaration.prototype;
  (_engine.ShaderDeclaration.constant = function(name, dataType, constValue) {
    if (name == null) dart.nullFailed(I[310], 345, 35, "name");
    if (dataType == null) dart.nullFailed(I[310], 345, 46, "dataType");
    if (constValue == null) dart.nullFailed(I[310], 345, 61, "constValue");
    this[name$23] = name;
    this[dataType$] = dataType;
    this[constValue$] = constValue;
    this[storage$] = 0;
    ;
  }).prototype = _engine.ShaderDeclaration.prototype;
  dart.addRtiResources(_engine.ShaderDeclaration, ["_engine|ShaderDeclaration"]);
  dart.setLibraryUri(_engine.ShaderDeclaration, I[220]);
  dart.setFieldSignature(_engine.ShaderDeclaration, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    dataType: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    storage: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    constValue: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ShaderDeclaration))));
  _engine.VertexShaders = class VertexShaders extends core.Object {
    static writeBaseVertexShader() {
      if (_engine.VertexShaders._baseVertexShader == null) {
        let builder = new _engine.ShaderBuilder.new(_engine.webGLVersion);
        builder.addIn(11, {name: "position"});
        builder.addIn(11, {name: "color"});
        builder.addUniform(14, {name: "u_ctransform"});
        builder.addUniform(11, {name: "u_scale"});
        builder.addUniform(11, {name: "u_shift"});
        builder.addOut(11, {name: "v_color"});
        let method = builder.addMethod("main");
        method.addStatement("gl_Position = ((u_ctransform * position) * u_scale) + u_shift;");
        method.addStatement("v_color = color.zyxw;");
        _engine.VertexShaders._baseVertexShader = builder.build();
      }
      return dart.nullCheck(_engine.VertexShaders._baseVertexShader);
    }
    static writeTextureVertexShader() {
      if (_engine.VertexShaders._textureVertexShader == null) {
        let builder = new _engine.ShaderBuilder.new(_engine.webGLVersion);
        builder.addIn(11, {name: "position"});
        builder.addUniform(14, {name: "u_ctransform"});
        builder.addUniform(11, {name: "u_scale"});
        builder.addUniform(11, {name: "u_textransform"});
        builder.addUniform(11, {name: "u_shift"});
        builder.addOut(9, {name: "v_texcoord"});
        let method = builder.addMethod("main");
        method.addStatement("gl_Position = ((u_ctransform * position) * u_scale) + u_shift;");
        method.addStatement("v_texcoord = vec2((u_textransform.z + position.x) * u_textransform.x, ((u_textransform.w + position.y) * u_textransform.y));");
        _engine.VertexShaders._textureVertexShader = builder.build();
      }
      return dart.nullCheck(_engine.VertexShaders._textureVertexShader);
    }
  };
  (_engine.VertexShaders.new = function() {
    ;
  }).prototype = _engine.VertexShaders.prototype;
  dart.addRtiResources(_engine.VertexShaders, ["_engine|VertexShaders"]);
  dart.setStaticMethodSignature(_engine.VertexShaders, () => ['writeBaseVertexShader', 'writeTextureVertexShader']);
  dart.setLibraryUri(_engine.VertexShaders, I[220]);
  dart.setStaticFieldSignature(_engine.VertexShaders, () => ['vertexIndicesForRect', '_baseVertexShader', '_textureVertexShader']);
  dart.defineLazy(_engine.VertexShaders, {
    /*_engine.VertexShaders.vertexIndicesForRect*/get vertexIndicesForRect() {
      return _native_typed_data.NativeUint16List.fromList(G.JSArrayOfint().of([0, 1, 2, 2, 3, 0]));
    },
    /*_engine.VertexShaders._baseVertexShader*/get _baseVertexShader() {
      return null;
    },
    set _baseVertexShader(value) {},
    /*_engine.VertexShaders._textureVertexShader*/get _textureVertexShader() {
      return null;
    },
    set _textureVertexShader(value) {}
  }, false);
  _engine.FragmentShaders = class FragmentShaders extends core.Object {
    static writeTextureFragmentShader(isWebGl2, tileModeX, tileModeY) {
      if (isWebGl2 == null) dart.nullFailed(I[311], 71, 12, "isWebGl2");
      let builder = new _engine.ShaderBuilder.fragment(_engine.webGLVersion);
      builder.floatPrecision = 1;
      builder.addIn(9, {name: "v_texcoord"});
      builder.addUniform(16, {name: "u_texture"});
      let method = builder.addMethod("main");
      if (dart.test(isWebGl2) || tileModeX == null || tileModeY == null || tileModeX == ui.TileMode.clamp && tileModeY == ui.TileMode.clamp) {
        method.addStatement(dart.str(builder.fragmentColor.name) + " = " + dart.str(builder.texture2DFunction) + "(u_texture, v_texcoord);");
      } else {
        method.addTileStatements("v_texcoord.x", "u", tileModeX);
        method.addTileStatements("v_texcoord.y", "v", tileModeY);
        method.addStatement("vec2 uv = vec2(u, v);");
        method.addStatement(dart.str(builder.fragmentColor.name) + " = " + dart.str(builder.texture2DFunction) + "(u_texture, uv);");
      }
      return builder.build();
    }
  };
  (_engine.FragmentShaders.new = function() {
    ;
  }).prototype = _engine.FragmentShaders.prototype;
  dart.addRtiResources(_engine.FragmentShaders, ["_engine|FragmentShaders"]);
  dart.setStaticMethodSignature(_engine.FragmentShaders, () => ['writeTextureFragmentShader']);
  dart.setLibraryUri(_engine.FragmentShaders, I[220]);
  _engine.PersistedSurfaceState = class PersistedSurfaceState extends core._Enum {
    [_enumToString]() {
      return "PersistedSurfaceState." + dart.str(this[_name$]);
    }
  };
  (_engine.PersistedSurfaceState.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[277], 102, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[277], 102, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.PersistedSurfaceState).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.PersistedSurfaceState.prototype;
  dart.addRtiResources(_engine.PersistedSurfaceState, ["_engine|PersistedSurfaceState"]);
  dart.setMethodSignature(_engine.PersistedSurfaceState, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedSurfaceState))));
  dart.setLibraryUri(_engine.PersistedSurfaceState, I[220]);
  dart.setStaticFieldSignature(_engine.PersistedSurfaceState, () => ['values', 'created', 'active', 'pendingRetention', 'pendingUpdate', 'released']);
  dart.defineLazy(_engine.PersistedSurfaceState, {
    /*_engine.PersistedSurfaceState.values*/get values() {
      return C[876] || CT.C876;
    },
    /*_engine.PersistedSurfaceState.created*/get created() {
      return C[877] || CT.C877;
    },
    /*_engine.PersistedSurfaceState.active*/get active() {
      return C[878] || CT.C878;
    },
    /*_engine.PersistedSurfaceState.pendingRetention*/get pendingRetention() {
      return C[879] || CT.C879;
    },
    /*_engine.PersistedSurfaceState.pendingUpdate*/get pendingUpdate() {
      return C[880] || CT.C880;
    },
    /*_engine.PersistedSurfaceState.released*/get released() {
      return C[881] || CT.C881;
    }
  }, false);
  var surface$0 = dart.privateName(_engine, "PersistedSurfaceException.surface");
  var message$18 = dart.privateName(_engine, "PersistedSurfaceException.message");
  _engine.PersistedSurfaceException = class PersistedSurfaceException extends core.Object {
    get surface() {
      return this[surface$0];
    }
    set surface(value) {
      super.surface = value;
    }
    get message() {
      return this[message$18];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](surface, message) {
      if (surface == null) dart.nullFailed(I[277], 153, 34, "surface");
      if (message == null) dart.nullFailed(I[277], 153, 48, "message");
      return new _engine.PersistedSurfaceException.new(surface, message);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = dart.str(dart.runtimeType(this.surface)) + ": " + dart.str(this.message);
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 161, 12, "() {\n      result = '${surface.runtimeType}: $message';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.PersistedSurfaceException.new = function(surface, message) {
    if (surface == null) dart.nullFailed(I[277], 153, 34, "surface");
    if (message == null) dart.nullFailed(I[277], 153, 48, "message");
    this[surface$0] = surface;
    this[message$18] = message;
    ;
  }).prototype = _engine.PersistedSurfaceException.prototype;
  dart.addRtiResources(_engine.PersistedSurfaceException, ["_engine|PersistedSurfaceException", "core|Exception"]);
  dart.setLibraryUri(_engine.PersistedSurfaceException, I[220]);
  dart.setFieldSignature(_engine.PersistedSurfaceException, () => dart.global.Object.setPrototypeOf({
    surface: {type: T$10.PersistedSurface(), isConst: false, isFinal: true, libraryUri: I[220]},
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedSurfaceException))));
  dart.defineExtensionMethods(_engine.PersistedSurfaceException, ['toString']);
  _engine._PersistedSurfaceMatch = class _PersistedSurfaceMatch extends core.Object {
    static ['_#new#tearOff'](opts) {
      let newChild = opts && 'newChild' in opts ? opts.newChild : null;
      let oldChildIndex = opts && 'oldChildIndex' in opts ? opts.oldChildIndex : null;
      let matchQuality = opts && 'matchQuality' in opts ? opts.matchQuality : null;
      return new _engine._PersistedSurfaceMatch.new({newChild: newChild, oldChildIndex: oldChildIndex, matchQuality: matchQuality});
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "_PersistedSurfaceMatch(" + dart.str(dart.runtimeType(dart.nullCheck(this.newChild))) + "#" + dart.str(dart.hashCode(dart.nullCheck(this.newChild))) + ": " + dart.str(this.oldChildIndex) + ", quality: " + dart.str(this.matchQuality) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 1215, 12, "() {\n      result = '_PersistedSurfaceMatch(${newChild!.runtimeType}#${newChild!.hashCode}: $oldChildIndex, quality: $matchQuality)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine._PersistedSurfaceMatch.new = function(opts) {
    let newChild = opts && 'newChild' in opts ? opts.newChild : null;
    let oldChildIndex = opts && 'oldChildIndex' in opts ? opts.oldChildIndex : null;
    let matchQuality = opts && 'matchQuality' in opts ? opts.matchQuality : null;
    this.newChild = newChild;
    this.oldChildIndex = oldChildIndex;
    this.matchQuality = matchQuality;
    ;
  }).prototype = _engine._PersistedSurfaceMatch.prototype;
  dart.addRtiResources(_engine._PersistedSurfaceMatch, ["_engine|_PersistedSurfaceMatch"]);
  dart.setLibraryUri(_engine._PersistedSurfaceMatch, I[220]);
  dart.setFieldSignature(_engine._PersistedSurfaceMatch, () => dart.global.Object.setPrototypeOf({
    newChild: {type: T$10.PersistedSurfaceN(), isConst: false, isFinal: true, libraryUri: I[220]},
    oldChildIndex: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    matchQuality: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._PersistedSurfaceMatch))));
  dart.defineExtensionMethods(_engine._PersistedSurfaceMatch, ['toString']);
  var activeColorFilterCount = dart.privateName(_engine, "PrerollSurfaceContext.activeColorFilterCount");
  var activeShaderMaskCount = dart.privateName(_engine, "PrerollSurfaceContext.activeShaderMaskCount");
  _engine.PrerollSurfaceContext = class PrerollSurfaceContext extends core.Object {
    get activeColorFilterCount() {
      return this[activeColorFilterCount];
    }
    set activeColorFilterCount(value) {
      if (value == null) dart.nullFailed(I[277], 1228, 7, "activeColorFilterCount");
      this[activeColorFilterCount] = value;
    }
    get activeShaderMaskCount() {
      return this[activeShaderMaskCount];
    }
    set activeShaderMaskCount(value) {
      if (value == null) dart.nullFailed(I[277], 1230, 7, "activeShaderMaskCount");
      this[activeShaderMaskCount] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.PrerollSurfaceContext.new();
    }
  };
  (_engine.PrerollSurfaceContext.new = function() {
    this[activeColorFilterCount] = 0;
    this[activeShaderMaskCount] = 0;
    ;
  }).prototype = _engine.PrerollSurfaceContext.prototype;
  dart.addRtiResources(_engine.PrerollSurfaceContext, ["_engine|PrerollSurfaceContext"]);
  dart.setLibraryUri(_engine.PrerollSurfaceContext, I[220]);
  dart.setFieldSignature(_engine.PrerollSurfaceContext, () => dart.global.Object.setPrototypeOf({
    activeColorFilterCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    activeShaderMaskCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PrerollSurfaceContext))));
  var surface$1 = dart.privateName(_engine, "DebugSurfaceStats.surface");
  var retainSurfaceCount = dart.privateName(_engine, "DebugSurfaceStats.retainSurfaceCount");
  var reuseElementCount = dart.privateName(_engine, "DebugSurfaceStats.reuseElementCount");
  var paintCount = dart.privateName(_engine, "DebugSurfaceStats.paintCount");
  var paintPixelCount = dart.privateName(_engine, "DebugSurfaceStats.paintPixelCount");
  var reuseCanvasCount = dart.privateName(_engine, "DebugSurfaceStats.reuseCanvasCount");
  var allocateBitmapCanvasCount = dart.privateName(_engine, "DebugSurfaceStats.allocateBitmapCanvasCount");
  var allocatedBitmapSizeInPixels = dart.privateName(_engine, "DebugSurfaceStats.allocatedBitmapSizeInPixels");
  var allocatedDomNodeCount = dart.privateName(_engine, "DebugSurfaceStats.allocatedDomNodeCount");
  _engine.DebugSurfaceStats = class DebugSurfaceStats extends core.Object {
    get surface() {
      return this[surface$1];
    }
    set surface(value) {
      super.surface = value;
    }
    get retainSurfaceCount() {
      return this[retainSurfaceCount];
    }
    set retainSurfaceCount(value) {
      if (value == null) dart.nullFailed(I[312], 44, 7, "retainSurfaceCount");
      this[retainSurfaceCount] = value;
    }
    get reuseElementCount() {
      return this[reuseElementCount];
    }
    set reuseElementCount(value) {
      if (value == null) dart.nullFailed(I[312], 48, 7, "reuseElementCount");
      this[reuseElementCount] = value;
    }
    get paintCount() {
      return this[paintCount];
    }
    set paintCount(value) {
      if (value == null) dart.nullFailed(I[312], 51, 7, "paintCount");
      this[paintCount] = value;
    }
    get paintPixelCount() {
      return this[paintPixelCount];
    }
    set paintPixelCount(value) {
      if (value == null) dart.nullFailed(I[312], 54, 7, "paintPixelCount");
      this[paintPixelCount] = value;
    }
    get reuseCanvasCount() {
      return this[reuseCanvasCount];
    }
    set reuseCanvasCount(value) {
      if (value == null) dart.nullFailed(I[312], 58, 7, "reuseCanvasCount");
      this[reuseCanvasCount] = value;
    }
    get allocateBitmapCanvasCount() {
      return this[allocateBitmapCanvasCount];
    }
    set allocateBitmapCanvasCount(value) {
      if (value == null) dart.nullFailed(I[312], 62, 7, "allocateBitmapCanvasCount");
      this[allocateBitmapCanvasCount] = value;
    }
    get allocatedBitmapSizeInPixels() {
      return this[allocatedBitmapSizeInPixels];
    }
    set allocatedBitmapSizeInPixels(value) {
      if (value == null) dart.nullFailed(I[312], 69, 7, "allocatedBitmapSizeInPixels");
      this[allocatedBitmapSizeInPixels] = value;
    }
    get allocatedDomNodeCount() {
      return this[allocatedDomNodeCount];
    }
    set allocatedDomNodeCount(value) {
      if (value == null) dart.nullFailed(I[312], 75, 7, "allocatedDomNodeCount");
      this[allocatedDomNodeCount] = value;
    }
    static ['_#new#tearOff'](surface) {
      return new _engine.DebugSurfaceStats.new(surface);
    }
    aggregate(oneSurfaceStats) {
      if (oneSurfaceStats == null) dart.nullFailed(I[312], 78, 36, "oneSurfaceStats");
      this.retainSurfaceCount = dart.notNull(this.retainSurfaceCount) + dart.notNull(oneSurfaceStats.retainSurfaceCount);
      this.reuseElementCount = dart.notNull(this.reuseElementCount) + dart.notNull(oneSurfaceStats.reuseElementCount);
      this.paintCount = dart.notNull(this.paintCount) + dart.notNull(oneSurfaceStats.paintCount);
      this.paintPixelCount = dart.notNull(this.paintPixelCount) + dart.notNull(oneSurfaceStats.paintPixelCount);
      this.reuseCanvasCount = dart.notNull(this.reuseCanvasCount) + dart.notNull(oneSurfaceStats.reuseCanvasCount);
      this.allocateBitmapCanvasCount = dart.notNull(this.allocateBitmapCanvasCount) + dart.notNull(oneSurfaceStats.allocateBitmapCanvasCount);
      this.allocatedBitmapSizeInPixels = dart.notNull(this.allocatedBitmapSizeInPixels) + dart.notNull(oneSurfaceStats.allocatedBitmapSizeInPixels);
      this.allocatedDomNodeCount = dart.notNull(this.allocatedDomNodeCount) + dart.notNull(oneSurfaceStats.allocatedDomNodeCount);
    }
  };
  (_engine.DebugSurfaceStats.new = function(surface) {
    this[retainSurfaceCount] = 0;
    this[reuseElementCount] = 0;
    this[paintCount] = 0;
    this[paintPixelCount] = 0;
    this[reuseCanvasCount] = 0;
    this[allocateBitmapCanvasCount] = 0;
    this[allocatedBitmapSizeInPixels] = 0;
    this[allocatedDomNodeCount] = 0;
    this[surface$1] = surface;
    ;
  }).prototype = _engine.DebugSurfaceStats.prototype;
  dart.addRtiResources(_engine.DebugSurfaceStats, ["_engine|DebugSurfaceStats"]);
  dart.setMethodSignature(_engine.DebugSurfaceStats, () => dart.global.Object.setPrototypeOf({aggregate: T$11.DebugSurfaceStatsTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DebugSurfaceStats))));
  dart.setLibraryUri(_engine.DebugSurfaceStats, I[220]);
  dart.setFieldSignature(_engine.DebugSurfaceStats, () => dart.global.Object.setPrototypeOf({
    surface: {type: T$10.PersistedSurfaceN(), isConst: false, isFinal: true, libraryUri: I[220]},
    retainSurfaceCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    reuseElementCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    paintCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    paintPixelCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    reuseCanvasCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    allocateBitmapCanvasCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    allocatedBitmapSizeInPixels: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    allocatedDomNodeCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DebugSurfaceStats))));
  var _matrix4 = dart.privateName(_engine, "_matrix4");
  var _matrixStorage$ = dart.privateName(_engine, "_matrixStorage");
  _engine.PersistedTransform = class PersistedTransform extends _engine.PersistedContainerSurface {
    static ['_#new#tearOff'](oldLayer, _matrixStorage) {
      if (_matrixStorage == null) dart.nullFailed(I[313], 12, 63, "_matrixStorage");
      return new _engine.PersistedTransform.new(oldLayer, _matrixStorage);
    }
    get matrix4() {
      let t$36561;
      t$36561 = this[_matrix4];
      return t$36561 == null ? this[_matrix4] = new _engine.Matrix4.fromFloat32List(this[_matrixStorage$]) : t$36561;
    }
    recomputeTransformAndClip() {
      this.transform = dart.nullCheck(dart.nullCheck(this.parent).transform).multiplied(this.matrix4);
      this.projectedClip = null;
    }
    get localTransformInverse() {
      this[_localTransformInverse] == null ? this[_localTransformInverse] = _engine.Matrix4.tryInvert(this.matrix4) : null;
      return this[_localTransformInverse];
    }
    createElement() {
      let element = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-transform");
      _engine.setElementStyle(element, "position", "absolute");
      _engine.setElementStyle(element, "transform-origin", "0 0 0");
      return element;
    }
    apply() {
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this.rootElement), "style"), _engine.float64ListToCssTransform(this[_matrixStorage$]));
    }
    update(oldSurface) {
      T$11.PersistedTransform()[_as](oldSurface);
      if (oldSurface == null) dart.nullFailed(I[313], 51, 34, "oldSurface");
      super.update(oldSurface);
      if (oldSurface[_matrixStorage$] == this[_matrixStorage$]) {
        this[_matrix4] = oldSurface[_matrix4];
        this[_localTransformInverse] = oldSurface[_localTransformInverse];
        return;
      }
      let matrixChanged = false;
      for (let i = 0; i < dart.notNull(this[_matrixStorage$][$length]); i = i + 1) {
        if (this[_matrixStorage$][$_get](i) != oldSurface[_matrixStorage$][$_get](i)) {
          matrixChanged = true;
          break;
        }
      }
      if (matrixChanged) {
        this.apply();
      } else {
        this[_matrix4] = oldSurface[_matrix4];
        this[_localTransformInverse] = oldSurface[_localTransformInverse];
      }
    }
  };
  (_engine.PersistedTransform.new = function(oldLayer, _matrixStorage) {
    if (_matrixStorage == null) dart.nullFailed(I[313], 12, 63, "_matrixStorage");
    this[_matrix4] = null;
    this[_localTransformInverse] = null;
    this[_matrixStorage$] = _matrixStorage;
    dart.global.Object.getPrototypeOf(_engine.PersistedTransform).new.call(this, oldLayer);
    ;
  }).prototype = _engine.PersistedTransform.prototype;
  dart.addRtiResources(_engine.PersistedTransform, ["_engine|PersistedTransform", "ui|TransformEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PersistedTransform, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    apply: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PersistedTransform))));
  dart.setGetterSignature(_engine.PersistedTransform, () => dart.global.Object.setPrototypeOf({matrix4: T$9.Matrix4()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PersistedTransform))));
  dart.setLibraryUri(_engine.PersistedTransform, I[220]);
  dart.setFieldSignature(_engine.PersistedTransform, () => dart.global.Object.setPrototypeOf({
    [_matrixStorage$]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_matrix4]: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_localTransformInverse]: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PersistedTransform))));
  var image$2 = dart.privateName(_engine, "SingleFrameInfo.image");
  var _durationMillis$ = dart.privateName(_engine, "_durationMillis");
  _engine.SingleFrameInfo = class SingleFrameInfo extends core.Object {
    get image() {
      return this[image$2];
    }
    set image(value) {
      super.image = value;
    }
    static ['_#new#tearOff'](image) {
      if (image == null) dart.nullFailed(I[285], 135, 24, "image");
      return new _engine.SingleFrameInfo.new(image);
    }
    get duration() {
      return core.Duration.zero;
    }
    get [_durationMillis]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[882] || CT.C882)));
    }
  };
  (_engine.SingleFrameInfo.new = function(image) {
    if (image == null) dart.nullFailed(I[285], 135, 24, "image");
    this[image$2] = image;
    ;
  }).prototype = _engine.SingleFrameInfo.prototype;
  dart.addRtiResources(_engine.SingleFrameInfo, ["_engine|SingleFrameInfo", "ui|FrameInfo"]);
  dart.setGetterSignature(_engine.SingleFrameInfo, () => dart.global.Object.setPrototypeOf({
    duration: T$8.Duration(),
    [_durationMillis]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SingleFrameInfo))));
  dart.setLibraryUri(_engine.SingleFrameInfo, I[220]);
  dart.setFieldSignature(_engine.SingleFrameInfo, () => dart.global.Object.setPrototypeOf({image: {type: T$10.Image(), isConst: false, isFinal: true, libraryUri: I[198]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SingleFrameInfo))));
  var duration$0 = dart.privateName(_engine, "AnimatedImageFrameInfo.duration");
  var image$3 = dart.privateName(_engine, "AnimatedImageFrameInfo.image");
  _engine.AnimatedImageFrameInfo = class AnimatedImageFrameInfo extends core.Object {
    get duration() {
      return this[duration$0];
    }
    set duration(value) {
      super.duration = value;
    }
    get image() {
      return this[image$3];
    }
    set image(value) {
      super.image = value;
    }
    static ['_#new#tearOff'](duration, image) {
      if (duration == null) dart.nullFailed(I[241], 198, 31, "duration");
      if (image == null) dart.nullFailed(I[241], 198, 46, "image");
      return new _engine.AnimatedImageFrameInfo.new(duration, image);
    }
    get [_durationMillis]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[882] || CT.C882)));
    }
  };
  (_engine.AnimatedImageFrameInfo.new = function(duration, image) {
    if (duration == null) dart.nullFailed(I[241], 198, 31, "duration");
    if (image == null) dart.nullFailed(I[241], 198, 46, "image");
    this[duration$0] = duration;
    this[image$3] = image;
    ;
  }).prototype = _engine.AnimatedImageFrameInfo.prototype;
  dart.addRtiResources(_engine.AnimatedImageFrameInfo, ["_engine|AnimatedImageFrameInfo", "ui|FrameInfo"]);
  dart.setGetterSignature(_engine.AnimatedImageFrameInfo, () => dart.global.Object.setPrototypeOf({[_durationMillis]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.AnimatedImageFrameInfo))));
  dart.setLibraryUri(_engine.AnimatedImageFrameInfo, I[220]);
  dart.setFieldSignature(_engine.AnimatedImageFrameInfo, () => dart.global.Object.setPrototypeOf({
    duration: {type: T$8.Duration(), isConst: false, isFinal: true, libraryUri: I[11]},
    image: {type: T$10.Image(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AnimatedImageFrameInfo))));
  var header$ = dart.privateName(_engine, "ImageFileFormat.header");
  var contentType$0 = dart.privateName(_engine, "ImageFileFormat.contentType");
  _engine.ImageFileFormat = class ImageFileFormat extends core.Object {
    get header() {
      return this[header$];
    }
    set header(value) {
      super.header = value;
    }
    get contentType() {
      return this[contentType$0];
    }
    set contentType(value) {
      super.contentType = value;
    }
    static ['_#new#tearOff'](header, contentType) {
      if (header == null) dart.nullFailed(I[241], 249, 30, "header");
      if (contentType == null) dart.nullFailed(I[241], 249, 43, "contentType");
      return new _engine.ImageFileFormat.new(header, contentType);
    }
  };
  (_engine.ImageFileFormat.new = function(header, contentType) {
    if (header == null) dart.nullFailed(I[241], 249, 30, "header");
    if (contentType == null) dart.nullFailed(I[241], 249, 43, "contentType");
    this[header$] = header;
    this[contentType$0] = contentType;
    ;
  }).prototype = _engine.ImageFileFormat.prototype;
  dart.addRtiResources(_engine.ImageFileFormat, ["_engine|ImageFileFormat"]);
  dart.setLibraryUri(_engine.ImageFileFormat, I[220]);
  dart.setFieldSignature(_engine.ImageFileFormat, () => dart.global.Object.setPrototypeOf({
    header: {type: T$11.ListOfintN(), isConst: false, isFinal: true, libraryUri: I[11]},
    contentType: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ImageFileFormat))));
  dart.setStaticFieldSignature(_engine.ImageFileFormat, () => ['values']);
  dart.defineLazy(_engine.ImageFileFormat, {
    /*_engine.ImageFileFormat.values*/get values() {
      return C[883] || CT.C883;
    }
  }, false);
  var delegate$ = dart.privateName(_engine, "ResizingCodec.delegate");
  var targetWidth$0 = dart.privateName(_engine, "ResizingCodec.targetWidth");
  var targetHeight$0 = dart.privateName(_engine, "ResizingCodec.targetHeight");
  var allowUpscaling$ = dart.privateName(_engine, "ResizingCodec.allowUpscaling");
  _engine.ResizingCodec = class ResizingCodec extends core.Object {
    get delegate() {
      return this[delegate$];
    }
    set delegate(value) {
      super.delegate = value;
    }
    get targetWidth() {
      return this[targetWidth$0];
    }
    set targetWidth(value) {
      super.targetWidth = value;
    }
    get targetHeight() {
      return this[targetHeight$0];
    }
    set targetHeight(value) {
      super.targetHeight = value;
    }
    get allowUpscaling() {
      return this[allowUpscaling$];
    }
    set allowUpscaling(value) {
      super.allowUpscaling = value;
    }
    static ['_#new#tearOff'](delegate, opts) {
      if (delegate == null) dart.nullFailed(I[241], 359, 10, "delegate");
      let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
      let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
      let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
      if (allowUpscaling == null) dart.nullFailed(I[241], 362, 10, "allowUpscaling");
      return new _engine.ResizingCodec.new(delegate, {targetWidth: targetWidth, targetHeight: targetHeight, allowUpscaling: allowUpscaling});
    }
    dispose() {
      return this.delegate.dispose();
    }
    get frameCount() {
      return this.delegate.frameCount;
    }
    getNextFrame() {
      return async.async(T$9.FrameInfo(), (function* getNextFrame() {
        let frameInfo = (yield this.delegate.getNextFrame());
        return new _engine.AnimatedImageFrameInfo.new(frameInfo.duration, _engine.scaleImageIfNeeded(frameInfo.image, {targetWidth: this.targetWidth, targetHeight: this.targetHeight, allowUpscaling: this.allowUpscaling}));
      }).bind(this));
    }
    get repetitionCount() {
      return this.delegate.frameCount;
    }
    [_getNextFrame](callback) {
      if (callback == null) dart.nullFailed(I[241], 357, 7, "callback");
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.method(C[834] || CT.C834, null, [callback], null)));
    }
  };
  (_engine.ResizingCodec.new = function(delegate, opts) {
    if (delegate == null) dart.nullFailed(I[241], 359, 10, "delegate");
    let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
    let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
    let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
    if (allowUpscaling == null) dart.nullFailed(I[241], 362, 10, "allowUpscaling");
    this[delegate$] = delegate;
    this[targetWidth$0] = targetWidth;
    this[targetHeight$0] = targetHeight;
    this[allowUpscaling$] = allowUpscaling;
    ;
  }).prototype = _engine.ResizingCodec.prototype;
  dart.addRtiResources(_engine.ResizingCodec, ["_engine|ResizingCodec", "ui|Codec"]);
  dart.setMethodSignature(_engine.ResizingCodec, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    getNextFrame: T$9.VoidToFutureOfFrameInfo(),
    [_getNextFrame]: T$9.FnToStringN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ResizingCodec))));
  dart.setGetterSignature(_engine.ResizingCodec, () => dart.global.Object.setPrototypeOf({
    frameCount: T$.int(),
    repetitionCount: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ResizingCodec))));
  dart.setLibraryUri(_engine.ResizingCodec, I[220]);
  dart.setFieldSignature(_engine.ResizingCodec, () => dart.global.Object.setPrototypeOf({
    delegate: {type: T$9.Codec(), isConst: false, isFinal: true, libraryUri: I[198]},
    targetWidth: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    targetHeight: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    allowUpscaling: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ResizingCodec))));
  _engine.DebugEngineInitializationState = class DebugEngineInitializationState extends core._Enum {
    [_enumToString]() {
      return "DebugEngineInitializationState." + dart.str(this[_name$]);
    }
  };
  (_engine.DebugEngineInitializationState.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[314], 63, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[314], 63, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.DebugEngineInitializationState).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.DebugEngineInitializationState.prototype;
  dart.addRtiResources(_engine.DebugEngineInitializationState, ["_engine|DebugEngineInitializationState"]);
  dart.setMethodSignature(_engine.DebugEngineInitializationState, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DebugEngineInitializationState))));
  dart.setLibraryUri(_engine.DebugEngineInitializationState, I[220]);
  dart.setStaticFieldSignature(_engine.DebugEngineInitializationState, () => ['values', 'uninitialized', 'initializingServices', 'initializedServices', 'initializingUi', 'initialized']);
  dart.defineLazy(_engine.DebugEngineInitializationState, {
    /*_engine.DebugEngineInitializationState.values*/get values() {
      return C[896] || CT.C896;
    },
    /*_engine.DebugEngineInitializationState.uninitialized*/get uninitialized() {
      return C[897] || CT.C897;
    },
    /*_engine.DebugEngineInitializationState.initializingServices*/get initializingServices() {
      return C[898] || CT.C898;
    },
    /*_engine.DebugEngineInitializationState.initializedServices*/get initializedServices() {
      return C[899] || CT.C899;
    },
    /*_engine.DebugEngineInitializationState.initializingUi*/get initializingUi() {
      return C[900] || CT.C900;
    },
    /*_engine.DebugEngineInitializationState.initialized*/get initialized() {
      return C[901] || CT.C901;
    }
  }, false);
  _engine.FlutterApp = class FlutterApp {
    static new(opts) {
      let addView = opts && 'addView' in opts ? opts.addView : null;
      if (addView == null) dart.nullFailed(I[315], 63, 31, "addView");
      let removeView = opts && 'removeView' in opts ? opts.removeView : null;
      if (removeView == null) dart.nullFailed(I[315], 64, 34, "removeView");
      return {addView: js_util._functionToJS1(addView), removeView: js_util._functionToJS1(dart.fn(id => {
          if (id == null) dart.nullFailed(I[315], 68, 32, "id");
          return removeView(js_interop['JSNumberToNumber|get#toDartInt'](id));
        }, T$11.doubleToJsFlutterViewOptionsN()))};
    }
    static ['_#new#tearOff'](opts) {
      let addView = opts && 'addView' in opts ? opts.addView : null;
      if (addView == null) dart.nullFailed(I[315], 63, 31, "addView");
      let removeView = opts && 'removeView' in opts ? opts.removeView : null;
      if (removeView == null) dart.nullFailed(I[315], 64, 34, "removeView");
      return _engine.FlutterApp.new({addView: addView, removeView: removeView});
    }
  };
  _engine.FlutterEngineInitializer = class FlutterEngineInitializer {
    static new(opts) {
      let initializeEngine = opts && 'initializeEngine' in opts ? opts.initializeEngine : null;
      if (initializeEngine == null) dart.nullFailed(I[316], 53, 33, "initializeEngine");
      let autoStart = opts && 'autoStart' in opts ? opts.autoStart : null;
      if (autoStart == null) dart.nullFailed(I[316], 54, 32, "autoStart");
      return {initializeEngine: js_util._functionToJS1(dart.fn((config = null) => _engine.futureToPromise(T$3.JSObject(), T$11.FutureOfJSObject()[_as](initializeEngine(config))), T$11.JsFlutterConfigurationNToJSObject())), autoStart: js_util._functionToJS0(dart.fn(() => _engine.futureToPromise(T$3.JSObject(), T$11.FutureOfJSObject()[_as](autoStart())), T$7.VoidToJSObject()))};
    }
    static ['_#new#tearOff'](opts) {
      let initializeEngine = opts && 'initializeEngine' in opts ? opts.initializeEngine : null;
      if (initializeEngine == null) dart.nullFailed(I[316], 53, 33, "initializeEngine");
      let autoStart = opts && 'autoStart' in opts ? opts.autoStart : null;
      if (autoStart == null) dart.nullFailed(I[316], 54, 32, "autoStart");
      return _engine.FlutterEngineInitializer.new({initializeEngine: initializeEngine, autoStart: autoStart});
    }
  };
  _engine.FlutterAppRunner = class FlutterAppRunner {
    static new(opts) {
      let runApp = opts && 'runApp' in opts ? opts.runApp : null;
      if (runApp == null) dart.nullFailed(I[316], 73, 47, "runApp");
      return {runApp: js_util._functionToJS1(dart.fn((args = null) => _engine.futureToPromise(T$3.JSObject(), T$11.FutureOfJSObject()[_as](runApp(args))), T$11.RunAppFnParametersNToJSObject()))};
    }
    static ['_#new#tearOff'](opts) {
      let runApp = opts && 'runApp' in opts ? opts.runApp : null;
      if (runApp == null) dart.nullFailed(I[316], 73, 47, "runApp");
      return _engine.FlutterAppRunner.new({runApp: runApp});
    }
  };
  var __KeyboardBinding__converter = dart.privateName(_engine, "_#KeyboardBinding#_converter");
  var __KeyboardBinding__converter_isSet = dart.privateName(_engine, "_#KeyboardBinding#_converter#isSet");
  var _listeners = dart.privateName(_engine, "_listeners");
  var _converter = dart.privateName(_engine, "_converter");
  var _addEventListener = dart.privateName(_engine, "_addEventListener");
  var _onKeyData = dart.privateName(_engine, "_onKeyData");
  var _clearListeners = dart.privateName(_engine, "_clearListeners");
  _engine.KeyboardBinding = class KeyboardBinding extends core.Object {
    static ['_#_#tearOff']() {
      return new _engine.KeyboardBinding.__();
    }
    static get instance() {
      return _engine.KeyboardBinding._instance;
    }
    static initInstance() {
      if (_engine.KeyboardBinding._instance == null) {
        _engine.KeyboardBinding._instance = new _engine.KeyboardBinding.__();
        if (!dart.test(dart.fn(() => {
          _engine.registerHotRestartListener(dart.bind(dart.nullCheck(_engine.KeyboardBinding._instance), _reset));
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[317], 115, 14, "() {\n        registerHotRestartListener(_instance!._reset);\n        return true;\n      }()");
      }
    }
    get localPlatform() {
      return ui_web.browser.operatingSystem;
    }
    get converter() {
      return this[_converter];
    }
    get [_converter]() {
      let t$36564;
      if (!dart.test(this[__KeyboardBinding__converter_isSet])) {
        let t$36563 = new _engine.KeyboardConverter.new(dart.bind(this, _onKeyData), this.localPlatform);
        if (dart.test(this[__KeyboardBinding__converter_isSet])) dart.throw(new _internal.LateError.fieldADI("_converter"));
        this[__KeyboardBinding__converter] = t$36563;
        this[__KeyboardBinding__converter_isSet] = true;
      }
      t$36564 = this[__KeyboardBinding__converter];
      return t$36564;
    }
    [_addEventListener](eventName, handler) {
      if (eventName == null) dart.nullFailed(I[317], 137, 33, "eventName");
      if (handler == null) dart.nullFailed(I[317], 137, 65, "handler");
      function loggedHandler(event) {
        if (event == null) dart.nullFailed(I[317], 138, 35, "event");
        ;
        if (dart.test(_engine.EngineSemantics.instance.receiveGlobalEvent(event))) {
          handler(event);
        }
      }
      dart.fn(loggedHandler, T$10.DomEventTovoid());
      let wrappedHandler = _engine.createDomEventListener(loggedHandler);
      if (!!dart.test(this[_listeners][$containsKey](eventName))) dart.assertFailed(null, I[317], 148, 12, "!_listeners.containsKey(eventName)");
      this[_listeners][$_set](eventName, wrappedHandler);
      _engine['DomEventTargetExtension|addEventListener'](dart.jsInteropNullCheck(dart.global.window), eventName, wrappedHandler, true);
    }
    [_clearListeners]() {
      this[_listeners][$forEach](dart.fn((eventName, listener) => {
        if (eventName == null) dart.nullFailed(I[317], 155, 32, "eventName");
        if (listener == null) dart.nullFailed(I[317], 155, 60, "listener");
        _engine['DomEventTargetExtension|removeEventListener'](dart.jsInteropNullCheck(dart.global.window), eventName, listener, true);
      }, T$11.StringAndDomEventListenerTovoid()));
      this[_listeners][$clear]();
    }
    [_onKeyData](data) {
      if (data == null) dart.nullFailed(I[317], 160, 30, "data");
      let result = null;
      _engine.EnginePlatformDispatcher.instance.invokeOnKeyData(data, dart.fn(handled => {
        if (handled == null) dart.nullFailed(I[317], 165, 13, "handled");
        result = handled;
      }, T$1.boolTovoid()));
      return dart.nullCheck(result);
    }
    [_reset]() {
      this[_clearListeners]();
      this[_converter].dispose();
    }
  };
  (_engine.KeyboardBinding.__ = function() {
    this[__KeyboardBinding__converter] = null;
    this[__KeyboardBinding__converter_isSet] = false;
    this[_listeners] = new (G$.IdentityMapOfString$DomEventListener()).new();
    this[_addEventListener]("keydown", dart.fn(domEvent => {
      let t$36563;
      if (domEvent == null) dart.nullFailed(I[317], 96, 44, "domEvent");
      let event = new _engine.FlutterHtmlKeyboardEvent.new(T$11.DomKeyboardEvent()[_as](domEvent));
      this[_converter].handleEvent(event);
      t$36563 = _engine.RawKeyboard.instance;
      t$36563 == null ? null : t$36563.handleHtmlEvent(domEvent);
    }, T$10.DomEventTovoid()));
    this[_addEventListener]("keyup", dart.fn(domEvent => {
      let t$36563;
      if (domEvent == null) dart.nullFailed(I[317], 101, 42, "domEvent");
      let event = new _engine.FlutterHtmlKeyboardEvent.new(T$11.DomKeyboardEvent()[_as](domEvent));
      this[_converter].handleEvent(event);
      t$36563 = _engine.RawKeyboard.instance;
      t$36563 == null ? null : t$36563.handleHtmlEvent(domEvent);
    }, T$10.DomEventTovoid()));
  }).prototype = _engine.KeyboardBinding.prototype;
  dart.addRtiResources(_engine.KeyboardBinding, ["_engine|KeyboardBinding"]);
  dart.setMethodSignature(_engine.KeyboardBinding, () => dart.global.Object.setPrototypeOf({
    [_addEventListener]: T$11.StringAndFnTovoid$2(),
    [_clearListeners]: T$.VoidTovoid(),
    [_onKeyData]: T$11.KeyDataTobool(),
    [_reset]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.KeyboardBinding))));
  dart.setStaticMethodSignature(_engine.KeyboardBinding, () => ['initInstance']);
  dart.setGetterSignature(_engine.KeyboardBinding, () => dart.global.Object.setPrototypeOf({
    localPlatform: T$9.OperatingSystem(),
    converter: T$11.KeyboardConverter(),
    [_converter]: T$11.KeyboardConverter()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.KeyboardBinding))));
  dart.setStaticGetterSignature(_engine.KeyboardBinding, () => ['instance']);
  dart.setLibraryUri(_engine.KeyboardBinding, I[220]);
  dart.setFieldSignature(_engine.KeyboardBinding, () => dart.global.Object.setPrototypeOf({
    [__KeyboardBinding__converter]: {type: T$11.KeyboardConverterN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__KeyboardBinding__converter_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_listeners]: {type: T$11.MapOfString$DomEventListener(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.KeyboardBinding))));
  dart.setStaticFieldSignature(_engine.KeyboardBinding, () => ['_instance']);
  dart.defineLazy(_engine.KeyboardBinding, {
    /*_engine.KeyboardBinding._instance*/get _instance() {
      return null;
    },
    set _instance(value) {}
  }, false);
  var keyData$ = dart.privateName(_engine, "AsyncKeyboardDispatching.keyData");
  var callback$ = dart.privateName(_engine, "AsyncKeyboardDispatching.callback");
  _engine.AsyncKeyboardDispatching = class AsyncKeyboardDispatching extends core.Object {
    get keyData() {
      return this[keyData$];
    }
    set keyData(value) {
      super.keyData = value;
    }
    get callback() {
      return this[callback$];
    }
    set callback(value) {
      super.callback = value;
    }
    static ['_#new#tearOff'](opts) {
      let keyData = opts && 'keyData' in opts ? opts.keyData : null;
      if (keyData == null) dart.nullFailed(I[317], 177, 19, "keyData");
      let callback = opts && 'callback' in opts ? opts.callback : null;
      return new _engine.AsyncKeyboardDispatching.new({keyData: keyData, callback: callback});
    }
  };
  (_engine.AsyncKeyboardDispatching.new = function(opts) {
    let keyData = opts && 'keyData' in opts ? opts.keyData : null;
    if (keyData == null) dart.nullFailed(I[317], 177, 19, "keyData");
    let callback = opts && 'callback' in opts ? opts.callback : null;
    this[keyData$] = keyData;
    this[callback$] = callback;
    ;
  }).prototype = _engine.AsyncKeyboardDispatching.prototype;
  dart.addRtiResources(_engine.AsyncKeyboardDispatching, ["_engine|AsyncKeyboardDispatching"]);
  dart.setLibraryUri(_engine.AsyncKeyboardDispatching, I[220]);
  dart.setFieldSignature(_engine.AsyncKeyboardDispatching, () => dart.global.Object.setPrototypeOf({
    keyData: {type: T$11.KeyData(), isConst: false, isFinal: true, libraryUri: I[198]},
    callback: {type: T$1.VoidToNvoid(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AsyncKeyboardDispatching))));
  var _event$ = dart.privateName(_engine, "_event");
  _engine.FlutterHtmlKeyboardEvent = class FlutterHtmlKeyboardEvent extends core.Object {
    static ['_#new#tearOff'](_event) {
      if (_event == null) dart.nullFailed(I[317], 188, 33, "_event");
      return new _engine.FlutterHtmlKeyboardEvent.new(_event);
    }
    get type() {
      return _engine['DomEventExtension|get#type'](this[_event$]);
    }
    get code() {
      return _engine['DomKeyboardEventExtension|get#code'](this[_event$]);
    }
    get key() {
      return _engine['DomKeyboardEventExtension|get#key'](this[_event$]);
    }
    get keyCode() {
      return _engine['DomKeyboardEventExtension|get#keyCode'](this[_event$])[$toInt]();
    }
    get repeat() {
      return _engine['DomKeyboardEventExtension|get#repeat'](this[_event$]);
    }
    get location() {
      return _engine['DomKeyboardEventExtension|get#location'](this[_event$])[$toInt]();
    }
    get timeStamp() {
      return _engine['DomEventExtension|get#timeStamp'](this[_event$]);
    }
    get altKey() {
      return _engine['DomKeyboardEventExtension|get#altKey'](this[_event$]);
    }
    get ctrlKey() {
      return _engine['DomKeyboardEventExtension|get#ctrlKey'](this[_event$]);
    }
    get shiftKey() {
      let t$36564;
      t$36564 = _engine['DomKeyboardEventExtension|get#shiftKey'](this[_event$]);
      return t$36564 == null ? false : t$36564;
    }
    get metaKey() {
      return _engine['DomKeyboardEventExtension|get#metaKey'](this[_event$]);
    }
    get isComposing() {
      return _engine['DomKeyboardEventExtension|get#isComposing'](this[_event$]);
    }
    getModifierState(key) {
      if (key == null) dart.nullFailed(I[317], 205, 32, "key");
      return _engine['DomKeyboardEventExtension|getModifierState'](this[_event$], key);
    }
    preventDefault() {
      return this[_event$].preventDefault();
    }
    stopPropagation() {
      return this[_event$].stopPropagation();
    }
    get defaultPrevented() {
      return _engine['DomEventExtension|get#defaultPrevented'](this[_event$]);
    }
  };
  (_engine.FlutterHtmlKeyboardEvent.new = function(_event) {
    if (_event == null) dart.nullFailed(I[317], 188, 33, "_event");
    this[_event$] = _event;
    ;
  }).prototype = _engine.FlutterHtmlKeyboardEvent.prototype;
  dart.addRtiResources(_engine.FlutterHtmlKeyboardEvent, ["_engine|FlutterHtmlKeyboardEvent"]);
  dart.setMethodSignature(_engine.FlutterHtmlKeyboardEvent, () => dart.global.Object.setPrototypeOf({
    getModifierState: T$.StringTobool(),
    preventDefault: T$.VoidTovoid(),
    stopPropagation: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FlutterHtmlKeyboardEvent))));
  dart.setGetterSignature(_engine.FlutterHtmlKeyboardEvent, () => dart.global.Object.setPrototypeOf({
    type: T$.String(),
    code: T$.StringN(),
    key: T$.StringN(),
    keyCode: T$.int(),
    repeat: T$.boolN(),
    location: T$.intN(),
    timeStamp: T$3.numN(),
    altKey: T$.bool(),
    ctrlKey: T$.bool(),
    shiftKey: T$.bool(),
    metaKey: T$.bool(),
    isComposing: T$.bool(),
    defaultPrevented: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FlutterHtmlKeyboardEvent))));
  dart.setLibraryUri(_engine.FlutterHtmlKeyboardEvent, I[220]);
  dart.setFieldSignature(_engine.FlutterHtmlKeyboardEvent, () => dart.global.Object.setPrototypeOf({[_event$]: {type: T$11.DomKeyboardEvent(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FlutterHtmlKeyboardEvent))));
  var performDispatchKeyData$ = dart.privateName(_engine, "KeyboardConverter.performDispatchKeyData");
  var onDarwin = dart.privateName(_engine, "KeyboardConverter.onDarwin");
  var _dispatchKeyData = dart.privateName(_engine, "_dispatchKeyData");
  var _pressingRecords = dart.privateName(_engine, "_pressingRecords");
  var _keyGuards = dart.privateName(_engine, "_keyGuards");
  var _mapping = dart.privateName(_engine, "_mapping");
  var _shouldSynthesizeCapsLockUp = dart.privateName(_engine, "_shouldSynthesizeCapsLockUp");
  var _shouldDoKeyGuard = dart.privateName(_engine, "_shouldDoKeyGuard");
  var _scheduleAsyncEvent = dart.privateName(_engine, "_scheduleAsyncEvent");
  var _startGuardingKey = dart.privateName(_engine, "_startGuardingKey");
  var _stopGuardingKey = dart.privateName(_engine, "_stopGuardingKey");
  var _handleEvent = dart.privateName(_engine, "_handleEvent");
  var _synthesizeModifierIfNeeded = dart.privateName(_engine, "_synthesizeModifierIfNeeded");
  var _synthesizeKeyDownEvent = dart.privateName(_engine, "_synthesizeKeyDownEvent");
  var _synthesizeKeyUpEvent = dart.privateName(_engine, "_synthesizeKeyUpEvent");
  _engine.KeyboardConverter = class KeyboardConverter extends core.Object {
    get performDispatchKeyData() {
      return this[performDispatchKeyData$];
    }
    set performDispatchKeyData(value) {
      super.performDispatchKeyData = value;
    }
    get onDarwin() {
      return this[onDarwin];
    }
    set onDarwin(value) {
      super.onDarwin = value;
    }
    static ['_#new#tearOff'](performDispatchKeyData, platform) {
      if (performDispatchKeyData == null) dart.nullFailed(I[317], 217, 26, "performDispatchKeyData");
      if (platform == null) dart.nullFailed(I[317], 217, 73, "platform");
      return new _engine.KeyboardConverter.new(performDispatchKeyData, platform);
    }
    static _mappingFromPlatform(platform) {
      if (platform == null) dart.nullFailed(I[317], 228, 81, "platform");
      switch (platform) {
        case C[814] || CT.C814:
        case C[818] || CT.C818:
          {
            return new _web_locale_keymap.LocaleKeymap.darwin();
          }
        case C[817] || CT.C817:
          {
            return new _web_locale_keymap.LocaleKeymap.win();
          }
        case C[815] || CT.C815:
        case C[816] || CT.C816:
        case C[819] || CT.C819:
          {
            return new _web_locale_keymap.LocaleKeymap.linux();
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
    dispose() {
      this[_disposed] = true;
      this.clearPressedKeys();
    }
    [_shouldSynthesizeCapsLockUp]() {
      return this.onDarwin;
    }
    [_shouldDoKeyGuard]() {
      return this.onDarwin;
    }
    static _getPhysicalCode(code) {
      let t$36564;
      if (code == null) dart.nullFailed(I[317], 285, 38, "code");
      if (code[$isEmpty]) {
        return 98784247808.0;
      }
      t$36564 = _engine.kWebToPhysicalKey[$_get](code);
      return t$36564 == null ? dart.hashCode(code) + 98784247808.0 : t$36564;
    }
    static _getModifierMask(event) {
      if (event == null) dart.nullFailed(I[317], 292, 56, "event");
      let altDown = event.altKey;
      let ctrlDown = event.ctrlKey;
      let shiftDown = event.shiftKey;
      let metaDown = event.metaKey;
      return (dart.test(altDown) ? 1073741824 : 0) + (dart.test(ctrlDown) ? 268435456 : 0) + (dart.test(shiftDown) ? 536870912 : 0) + (dart.test(metaDown) ? 2147483648.0 : 0);
    }
    static _eventKeyIsKeyName(key) {
      if (key == null) dart.nullFailed(I[317], 309, 41, "key");
      return key.length > 1 && key[$codeUnitAt](0) < 127 && key[$codeUnitAt](1) < 127;
    }
    static _deadKeyToLogicalKey(physicalKey, event) {
      if (physicalKey == null) dart.nullFailed(I[317], 313, 39, "physicalKey");
      if (event == null) dart.nullFailed(I[317], 313, 77, "event");
      return dart.notNull(physicalKey) + dart.notNull(_engine.KeyboardConverter._getModifierMask(event)) + 98784247808.0;
    }
    [_scheduleAsyncEvent](duration, getData, callback) {
      if (duration == null) dart.nullFailed(I[317], 333, 46, "duration");
      if (getData == null) dart.nullFailed(I[317], 333, 80, "getData");
      if (callback == null) dart.nullFailed(I[317], 333, 103, "callback");
      let canceled = false;
      G.FutureOfvoid().delayed(duration).then(T$.void(), dart.fn(_ => {
        let t$36564;
        if (!canceled && !dart.test(this[_disposed])) {
          callback();
          t$36564 = getData();
          this.performDispatchKeyData(t$36564);
        }
      }, T$.voidToNull()));
      return dart.fn(() => {
        canceled = true;
      }, T$.VoidTovoid());
    }
    [_startGuardingKey](physicalKey, logicalKey, currentTimeStamp) {
      let t$36564;
      if (physicalKey == null) dart.nullFailed(I[317], 348, 30, "physicalKey");
      if (logicalKey == null) dart.nullFailed(I[317], 348, 47, "logicalKey");
      if (currentTimeStamp == null) dart.nullFailed(I[317], 348, 68, "currentTimeStamp");
      if (!dart.test(this[_shouldDoKeyGuard]())) {
        return;
      }
      let cancelingCallback = this[_scheduleAsyncEvent](_engine.KeyboardConverter._kKeydownCancelDurationMac, dart.fn(() => new ui.KeyData.new({timeStamp: currentTimeStamp['+'](_engine.KeyboardConverter._kKeydownCancelDurationMac), type: ui.KeyEventType.up, physical: physicalKey, logical: logicalKey, character: null, synthesized: true}), T$11.VoidToKeyData()), dart.fn(() => {
        this[_pressingRecords][$remove](physicalKey);
      }, T$.VoidTovoid()));
      t$36564 = this[_keyGuards][$remove](physicalKey);
      t$36564 == null ? null : t$36564();
      this[_keyGuards][$_set](physicalKey, cancelingCallback);
    }
    [_stopGuardingKey](physicalKey) {
      let t$36564;
      if (physicalKey == null) dart.nullFailed(I[317], 370, 29, "physicalKey");
      t$36564 = this[_keyGuards][$remove](physicalKey);
      t$36564 == null ? null : t$36564();
    }
    [_handleEvent](event) {
      let t$36564, t$36564$;
      if (event == null) dart.nullFailed(I[317], 374, 46, "event");
      let timeStamp = _engine._eventTimeStampToDuration(dart.nullCheck(event.timeStamp));
      let eventKey = dart.nullCheck(event.key);
      let physicalKey = _engine.KeyboardConverter._getPhysicalCode(dart.nullCheck(event.code));
      let logicalKeyIsCharacter = !dart.test(_engine.KeyboardConverter._eventKeyIsKeyName(eventKey));
      let logicalKey = _engine._cached(T$.int(), dart.fn(() => {
        let t$36564;
        let mappedLogicalKey = _engine.kWebToLogicalKey[$_get](eventKey);
        if (mappedLogicalKey != null) {
          return mappedLogicalKey;
        }
        if (dart.test(_engine.kWebLogicalLocationMap[$containsKey](event.key))) {
          let result = (t$36564 = _engine.kWebLogicalLocationMap[$_get](dart.nullCheck(event.key)), t$36564 == null ? null : t$36564[$_get](dart.nullCheck(event.location)));
          if (!(result != null)) dart.assertFailed("Invalid modifier location: " + dart.str(event.key) + ", " + dart.str(event.location), I[317], 393, 16, "result != null");
          return dart.nullCheck(result);
        }
        if (logicalKeyIsCharacter) {
          let localeLogicalKeys = this[_mapping].getLogicalKey(event.code, event.key, event.keyCode);
          if (localeLogicalKeys != null) {
            return localeLogicalKeys;
          }
        }
        if (eventKey === "Dead") {
          return _engine.KeyboardConverter._deadKeyToLogicalKey(physicalKey, event);
        }
        return eventKey[$hashCode] + 98784247808.0;
      }, T$.VoidToint()));
      if (!(event.type === "keydown" || event.type === "keyup")) dart.assertFailed(null, I[317], 411, 12, "event.type == 'keydown' || event.type == 'keyup'");
      let isPhysicalDown = event.type === "keydown" || dart.test(this[_shouldSynthesizeCapsLockUp]()) && dart.nullCheck(event.code) === "CapsLock";
      let type = null;
      if (dart.test(this[_shouldSynthesizeCapsLockUp]()) && dart.nullCheck(event.code) === "CapsLock") {
        this[_scheduleAsyncEvent](core.Duration.zero, dart.fn(() => new ui.KeyData.new({timeStamp: timeStamp, type: ui.KeyEventType.up, physical: physicalKey, logical: logicalKey(), character: null, synthesized: true}), T$11.VoidToKeyData()), dart.fn(() => {
          this[_pressingRecords][$remove](physicalKey);
        }, T$.VoidTovoid()));
        type = ui.KeyEventType.down;
      } else if (isPhysicalDown) {
        if (this[_pressingRecords][$_get](physicalKey) != null) {
          if (dart.test((t$36564 = event.repeat, t$36564 == null ? false : t$36564))) {
            type = ui.KeyEventType.repeat;
          } else {
            dart.nullCheck(this[_dispatchKeyData])(new ui.KeyData.new({timeStamp: timeStamp, type: ui.KeyEventType.up, physical: physicalKey, logical: dart.nullCheck(this[_pressingRecords][$_get](physicalKey)), character: null, synthesized: true}));
            this[_pressingRecords][$remove](physicalKey);
            type = ui.KeyEventType.down;
          }
        } else {
          type = ui.KeyEventType.down;
        }
      } else {
        if (this[_pressingRecords][$_get](physicalKey) == null) {
          event.preventDefault();
          return;
        }
        type = ui.KeyEventType.up;
      }
      let lastLogicalRecord = this[_pressingRecords][$_get](physicalKey);
      let nextLogicalRecord = null;
      switch (type) {
        case C[530] || CT.C530:
          {
            if (!(lastLogicalRecord == null)) dart.assertFailed(null, I[317], 498, 16, "lastLogicalRecord == null");
            nextLogicalRecord = logicalKey();
            break;
          }
        case C[531] || CT.C531:
          {
            if (!(lastLogicalRecord != null)) dart.assertFailed(null, I[317], 501, 16, "lastLogicalRecord != null");
            nextLogicalRecord = null;
            break;
          }
        case C[532] || CT.C532:
          {
            if (!(lastLogicalRecord != null)) dart.assertFailed(null, I[317], 504, 16, "lastLogicalRecord != null");
            nextLogicalRecord = lastLogicalRecord;
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
      if (nextLogicalRecord == null) {
        this[_pressingRecords][$remove](physicalKey);
      } else {
        this[_pressingRecords][$_set](physicalKey, nextLogicalRecord);
      }
      _engine._kLogicalKeyToModifierGetter[$forEach](dart.fn((testeeLogicalKey, getModifier) => {
        if (testeeLogicalKey == null) dart.nullFailed(I[317], 518, 47, "testeeLogicalKey");
        if (getModifier == null) dart.nullFailed(I[317], 518, 81, "getModifier");
        if (logicalKey() == testeeLogicalKey) {
          return;
        }
        if (dart.test(this[_pressingRecords][$containsValue](testeeLogicalKey)) && !dart.test(getModifier(event))) {
          this[_pressingRecords][$removeWhere](dart.fn((physicalKey, logicalRecord) => {
            if (physicalKey == null) dart.nullFailed(I[317], 525, 43, "physicalKey");
            if (logicalRecord == null) dart.nullFailed(I[317], 525, 60, "logicalRecord");
            if (logicalRecord != testeeLogicalKey) {
              return false;
            }
            dart.nullCheck(this[_dispatchKeyData])(new ui.KeyData.new({timeStamp: timeStamp, type: ui.KeyEventType.up, physical: physicalKey, logical: testeeLogicalKey, character: null, synthesized: true}));
            return true;
          }, T$.intAndintTobool()));
        }
      }, T$11.intAndFnTovoid()));
      if (logicalKeyIsCharacter) {
        if (nextLogicalRecord != null) {
          this[_startGuardingKey](physicalKey, logicalKey(), timeStamp);
        } else {
          this[_stopGuardingKey](physicalKey);
        }
      }
      let character = logicalKeyIsCharacter ? eventKey : null;
      let keyData = new ui.KeyData.new({timeStamp: timeStamp, type: type, physical: physicalKey, logical: (t$36564$ = lastLogicalRecord, t$36564$ == null ? logicalKey() : t$36564$), character: type == ui.KeyEventType.up ? null : character, synthesized: false});
      let primaryHandled = dart.nullCheck(this[_dispatchKeyData])(keyData);
      if (dart.test(primaryHandled)) {
        event.preventDefault();
      }
    }
    handleEvent(event) {
      if (event == null) dart.nullFailed(I[317], 579, 45, "event");
      if (event.key == null || event.code == null) {
        return;
      }
      if (!(this[_dispatchKeyData] == null)) dart.assertFailed(null, I[317], 585, 12, "_dispatchKeyData == null");
      let sentAnyEvents = false;
      this[_dispatchKeyData] = dart.fn(data => {
        let t$36564;
        if (data == null) dart.nullFailed(I[317], 587, 36, "data");
        sentAnyEvents = true;
        t$36564 = data;
        return this.performDispatchKeyData(t$36564);
      }, T$11.KeyDataTobool());
      try {
        this[_handleEvent](event);
      } finally {
        if (!sentAnyEvents) {
          dart.nullCheck(this[_dispatchKeyData])(_engine._emptyKeyData);
        }
        this[_dispatchKeyData] = null;
      }
    }
    synthesizeModifiersIfNeeded(altPressed, controlPressed, metaPressed, shiftPressed, eventTimestamp) {
      if (altPressed == null) dart.nullFailed(I[317], 603, 10, "altPressed");
      if (controlPressed == null) dart.nullFailed(I[317], 604, 10, "controlPressed");
      if (metaPressed == null) dart.nullFailed(I[317], 605, 10, "metaPressed");
      if (shiftPressed == null) dart.nullFailed(I[317], 606, 10, "shiftPressed");
      if (eventTimestamp == null) dart.nullFailed(I[317], 607, 9, "eventTimestamp");
      this[_synthesizeModifierIfNeeded](_engine._kPhysicalAltLeft, _engine._kPhysicalAltRight, _engine._kLogicalAltLeft, dart.test(altPressed) ? ui.KeyEventType.down : ui.KeyEventType.up, eventTimestamp);
      this[_synthesizeModifierIfNeeded](_engine.kPhysicalControlLeft, _engine.kPhysicalControlRight, _engine._kLogicalControlLeft, dart.test(controlPressed) ? ui.KeyEventType.down : ui.KeyEventType.up, eventTimestamp);
      this[_synthesizeModifierIfNeeded](_engine._kPhysicalMetaLeft, _engine._kPhysicalMetaRight, _engine._kLogicalMetaLeft, dart.test(metaPressed) ? ui.KeyEventType.down : ui.KeyEventType.up, eventTimestamp);
      this[_synthesizeModifierIfNeeded](_engine._kPhysicalShiftLeft, _engine._kPhysicalShiftRight, _engine._kLogicalShiftLeft, dart.test(shiftPressed) ? ui.KeyEventType.down : ui.KeyEventType.up, eventTimestamp);
    }
    [_synthesizeModifierIfNeeded](physicalLeft, physicalRight, logicalLeft, type, domTimestamp) {
      if (physicalLeft == null) dart.nullFailed(I[317], 640, 9, "physicalLeft");
      if (physicalRight == null) dart.nullFailed(I[317], 641, 9, "physicalRight");
      if (logicalLeft == null) dart.nullFailed(I[317], 642, 9, "logicalLeft");
      if (type == null) dart.nullFailed(I[317], 643, 21, "type");
      if (domTimestamp == null) dart.nullFailed(I[317], 644, 9, "domTimestamp");
      let leftPressed = this[_pressingRecords][$containsKey](physicalLeft);
      let rightPressed = this[_pressingRecords][$containsKey](physicalRight);
      let alreadyPressed = dart.test(leftPressed) || dart.test(rightPressed);
      let synthesizeDown = type == ui.KeyEventType.down && !alreadyPressed;
      let synthesizeUp = type == ui.KeyEventType.up && alreadyPressed;
      if (synthesizeDown) {
        this[_synthesizeKeyDownEvent](domTimestamp, physicalLeft, logicalLeft);
      }
      if (synthesizeUp && dart.test(leftPressed)) {
        let knownLogicalKey = dart.nullCheck(this[_pressingRecords][$_get](physicalLeft));
        this[_synthesizeKeyUpEvent](domTimestamp, physicalLeft, knownLogicalKey);
      }
      if (synthesizeUp && dart.test(rightPressed)) {
        let knownLogicalKey = dart.nullCheck(this[_pressingRecords][$_get](physicalRight));
        this[_synthesizeKeyUpEvent](domTimestamp, physicalRight, knownLogicalKey);
      }
    }
    [_synthesizeKeyDownEvent](domTimestamp, physical, logical) {
      let t$36564;
      if (domTimestamp == null) dart.nullFailed(I[317], 670, 36, "domTimestamp");
      if (physical == null) dart.nullFailed(I[317], 670, 54, "physical");
      if (logical == null) dart.nullFailed(I[317], 670, 68, "logical");
      t$36564 = new ui.KeyData.new({timeStamp: _engine._eventTimeStampToDuration(domTimestamp), type: ui.KeyEventType.down, physical: physical, logical: logical, character: null, synthesized: true});
      this.performDispatchKeyData(t$36564);
      this[_pressingRecords][$_set](physical, logical);
    }
    [_synthesizeKeyUpEvent](domTimestamp, physical, logical) {
      let t$36564;
      if (domTimestamp == null) dart.nullFailed(I[317], 683, 34, "domTimestamp");
      if (physical == null) dart.nullFailed(I[317], 683, 52, "physical");
      if (logical == null) dart.nullFailed(I[317], 683, 66, "logical");
      t$36564 = new ui.KeyData.new({timeStamp: _engine._eventTimeStampToDuration(domTimestamp), type: ui.KeyEventType.up, physical: physical, logical: logical, character: null, synthesized: true});
      this.performDispatchKeyData(t$36564);
      this[_pressingRecords][$remove](physical);
    }
    keyIsPressed(physical) {
      if (physical == null) dart.nullFailed(I[317], 696, 25, "physical");
      return this[_pressingRecords][$containsKey](physical);
    }
    clearPressedKeys() {
      this[_pressingRecords][$clear]();
    }
  };
  (_engine.KeyboardConverter.new = function(performDispatchKeyData, platform) {
    if (performDispatchKeyData == null) dart.nullFailed(I[317], 217, 26, "performDispatchKeyData");
    if (platform == null) dart.nullFailed(I[317], 217, 73, "platform");
    this[_dispatchKeyData] = null;
    this[_disposed] = false;
    this[_pressingRecords] = new (G$.IdentityMapOfint$int()).new();
    this[_keyGuards] = new (G$.IdentityMapOfint$VoidTovoid()).new();
    this[performDispatchKeyData$] = performDispatchKeyData;
    this[onDarwin] = platform == ui_web.OperatingSystem.macOs || platform == ui_web.OperatingSystem.iOs;
    this[_mapping] = _engine.KeyboardConverter._mappingFromPlatform(platform);
    ;
  }).prototype = _engine.KeyboardConverter.prototype;
  dart.addRtiResources(_engine.KeyboardConverter, ["_engine|KeyboardConverter"]);
  dart.setMethodSignature(_engine.KeyboardConverter, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    [_shouldSynthesizeCapsLockUp]: T$.VoidTobool(),
    [_shouldDoKeyGuard]: T$.VoidTobool(),
    [_scheduleAsyncEvent]: T$11.DurationAndFnAndFnToFn(),
    [_startGuardingKey]: T$11.intAndintAndDurationTovoid(),
    [_stopGuardingKey]: T$.intTovoid(),
    [_handleEvent]: T$11.FlutterHtmlKeyboardEventTovoid(),
    handleEvent: T$11.FlutterHtmlKeyboardEventTovoid(),
    synthesizeModifiersIfNeeded: T$11.boolAndboolAndbool__Tovoid$1(),
    [_synthesizeModifierIfNeeded]: T$11.intAndintAndint__Tovoid$29(),
    [_synthesizeKeyDownEvent]: T$11.numAndintAndintTovoid(),
    [_synthesizeKeyUpEvent]: T$11.numAndintAndintTovoid(),
    keyIsPressed: T$.intTobool(),
    clearPressedKeys: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.KeyboardConverter))));
  dart.setStaticMethodSignature(_engine.KeyboardConverter, () => ['_mappingFromPlatform', '_getPhysicalCode', '_getModifierMask', '_eventKeyIsKeyName', '_deadKeyToLogicalKey']);
  dart.setLibraryUri(_engine.KeyboardConverter, I[220]);
  dart.setFieldSignature(_engine.KeyboardConverter, () => dart.global.Object.setPrototypeOf({
    performDispatchKeyData: {type: T$11.KeyDataTobool(), isConst: false, isFinal: true},
    onDarwin: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_mapping]: {type: T$11.LocaleKeymap(), isConst: false, isFinal: true, libraryUri: I[318]},
    [_dispatchKeyData]: {type: T$11.KeyDataToNbool(), isConst: false, isFinal: false},
    [_disposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pressingRecords]: {type: T$11.MapOfint$int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_keyGuards]: {type: T$11.MapOfint$VoidTovoid(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.KeyboardConverter))));
  dart.setStaticFieldSignature(_engine.KeyboardConverter, () => ['_kKeydownCancelDurationMac']);
  dart.defineLazy(_engine.KeyboardConverter, {
    /*_engine.KeyboardConverter._kKeydownCancelDurationMac*/get _kKeydownCancelDurationMac() {
      return C[902] || CT.C902;
    }
  }, false);
  var slices = dart.privateName(_engine, "PictureEngineLayer.slices");
  _engine.PictureEngineLayer = class PictureEngineLayer extends core.Object {};
  _engine.PictureEngineLayer[dart.mixinOn] = Object => class PictureEngineLayer extends Object {
    get slices() {
      return this[slices];
    }
    set slices(value) {
      if (value == null) dart.nullFailed(I[319], 395, 20, "slices");
      this[slices] = value;
    }
    dispose() {
      for (let slice of this.slices) {
        slice.dispose();
      }
    }
  };
  (_engine.PictureEngineLayer[dart.mixinNew] = function() {
    this[slices] = G$.JSArrayOfLayerSlice().of([]);
  }).prototype = _engine.PictureEngineLayer.prototype;
  dart.addRtiResources(_engine.PictureEngineLayer, ["_engine|PictureEngineLayer", "ui|EngineLayer"]);
  dart.setMethodSignature(_engine.PictureEngineLayer, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PictureEngineLayer))));
  dart.setLibraryUri(_engine.PictureEngineLayer, I[220]);
  dart.setFieldSignature(_engine.PictureEngineLayer, () => dart.global.Object.setPrototypeOf({slices: {type: T$11.ListOfLayerSlice(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PictureEngineLayer))));
  const Object_PictureEngineLayer$36 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36, _engine.PictureEngineLayer);
  _engine.EngineRootLayer = class EngineRootLayer extends Object_PictureEngineLayer$36 {
    static ['_#new#tearOff']() {
      return new _engine.EngineRootLayer.new();
    }
  };
  (_engine.EngineRootLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.EngineRootLayer).new.call(this);
    ;
  }).prototype = _engine.EngineRootLayer.prototype;
  dart.addRtiResources(_engine.EngineRootLayer, ["_engine|EngineRootLayer"]);
  dart.setLibraryUri(_engine.EngineRootLayer, I[220]);
  const Object_PictureEngineLayer$36$ = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$, _engine.PictureEngineLayer);
  _engine.BackdropFilterLayer = class BackdropFilterLayer extends Object_PictureEngineLayer$36$ {
    static ['_#new#tearOff']() {
      return new _engine.BackdropFilterLayer.new();
    }
  };
  (_engine.BackdropFilterLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.BackdropFilterLayer).new.call(this);
    ;
  }).prototype = _engine.BackdropFilterLayer.prototype;
  dart.addRtiResources(_engine.BackdropFilterLayer, ["_engine|BackdropFilterLayer", "ui|BackdropFilterEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.BackdropFilterLayer, I[220]);
  var filter$3 = dart.privateName(_engine, "BackdropFilterOperation.filter");
  var mode$2 = dart.privateName(_engine, "BackdropFilterOperation.mode");
  var PlatformViewStyling_opacity = dart.privateName(_engine, "PlatformViewStyling.opacity");
  var PlatformViewPosition_transform = dart.privateName(_engine, "PlatformViewPosition.transform");
  var PlatformViewPosition_offset = dart.privateName(_engine, "PlatformViewPosition.offset");
  var PlatformViewStyling_position = dart.privateName(_engine, "PlatformViewStyling.position");
  _engine.BackdropFilterOperation = class BackdropFilterOperation extends core.Object {
    get filter() {
      return this[filter$3];
    }
    set filter(value) {
      super.filter = value;
    }
    get mode() {
      return this[mode$2];
    }
    set mode(value) {
      super.mode = value;
    }
    static ['_#new#tearOff'](filter, mode) {
      if (filter == null) dart.nullFailed(I[319], 15, 32, "filter");
      if (mode == null) dart.nullFailed(I[319], 15, 45, "mode");
      return new _engine.BackdropFilterOperation.new(filter, mode);
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 21, 27, "contentRect");
      return contentRect;
    }
    pre(canvas, contentRect) {
      let t$36564;
      if (canvas == null) dart.nullFailed(I[319], 24, 24, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 24, 40, "contentRect");
      canvas.saveLayerWithFilter(contentRect, (t$36564 = ui.Paint.new(), (() => {
        t$36564.blendMode = this.mode;
        return t$36564;
      })()), this.filter);
    }
    post(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 29, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 29, 41, "contentRect");
      canvas.restore();
    }
    createPlatformViewStyling() {
      return C[903] || CT.C903;
    }
  };
  (_engine.BackdropFilterOperation.new = function(filter, mode) {
    if (filter == null) dart.nullFailed(I[319], 15, 32, "filter");
    if (mode == null) dart.nullFailed(I[319], 15, 45, "mode");
    this[filter$3] = filter;
    this[mode$2] = mode;
    ;
  }).prototype = _engine.BackdropFilterOperation.prototype;
  dart.addRtiResources(_engine.BackdropFilterOperation, ["_engine|BackdropFilterOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.BackdropFilterOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BackdropFilterOperation))));
  dart.setLibraryUri(_engine.BackdropFilterOperation, I[220]);
  dart.setFieldSignature(_engine.BackdropFilterOperation, () => dart.global.Object.setPrototypeOf({
    filter: {type: T$9.ImageFilter(), isConst: false, isFinal: true, libraryUri: I[198]},
    mode: {type: T$8.BlendMode(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.BackdropFilterOperation))));
  const Object_PictureEngineLayer$36$0 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$0.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$0.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$0, _engine.PictureEngineLayer);
  _engine.ClipPathLayer = class ClipPathLayer extends Object_PictureEngineLayer$36$0 {
    static ['_#new#tearOff']() {
      return new _engine.ClipPathLayer.new();
    }
  };
  (_engine.ClipPathLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.ClipPathLayer).new.call(this);
    ;
  }).prototype = _engine.ClipPathLayer.prototype;
  dart.addRtiResources(_engine.ClipPathLayer, ["_engine|ClipPathLayer", "ui|ClipPathEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.ClipPathLayer, I[220]);
  var path$6 = dart.privateName(_engine, "ClipPathOperation.path");
  var clip$ = dart.privateName(_engine, "ClipPathOperation.clip");
  _engine.ClipPathOperation = class ClipPathOperation extends core.Object {
    get path() {
      return this[path$6];
    }
    set path(value) {
      super.path = value;
    }
    get clip() {
      return this[clip$];
    }
    set clip(value) {
      super.clip = value;
    }
    static ['_#new#tearOff'](path, clip) {
      if (path == null) dart.nullFailed(I[319], 41, 26, "path");
      if (clip == null) dart.nullFailed(I[319], 41, 37, "clip");
      return new _engine.ClipPathOperation.new(path, clip);
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 47, 27, "contentRect");
      return contentRect.intersect(this.path.getBounds());
    }
    pre(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 50, 24, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 50, 40, "contentRect");
      canvas.save();
      canvas.clipPath(this.path, {doAntiAlias: this.clip != ui.Clip.hardEdge});
      if (this.clip == ui.Clip.antiAliasWithSaveLayer) {
        canvas.saveLayer(this.path.getBounds(), ui.Paint.new());
      }
    }
    post(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 59, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 59, 41, "contentRect");
      if (this.clip == ui.Clip.antiAliasWithSaveLayer) {
        canvas.restore();
      }
      canvas.restore();
    }
    createPlatformViewStyling() {
      return C[903] || CT.C903;
    }
  };
  (_engine.ClipPathOperation.new = function(path, clip) {
    if (path == null) dart.nullFailed(I[319], 41, 26, "path");
    if (clip == null) dart.nullFailed(I[319], 41, 37, "clip");
    this[path$6] = path;
    this[clip$] = clip;
    ;
  }).prototype = _engine.ClipPathOperation.prototype;
  dart.addRtiResources(_engine.ClipPathOperation, ["_engine|ClipPathOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.ClipPathOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClipPathOperation))));
  dart.setLibraryUri(_engine.ClipPathOperation, I[220]);
  dart.setFieldSignature(_engine.ClipPathOperation, () => dart.global.Object.setPrototypeOf({
    path: {type: T$10.Path(), isConst: false, isFinal: true, libraryUri: I[198]},
    clip: {type: T$8.Clip(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ClipPathOperation))));
  const Object_PictureEngineLayer$36$1 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$1.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$1.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$1, _engine.PictureEngineLayer);
  _engine.ClipRectLayer = class ClipRectLayer extends Object_PictureEngineLayer$36$1 {
    static ['_#new#tearOff']() {
      return new _engine.ClipRectLayer.new();
    }
  };
  (_engine.ClipRectLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.ClipRectLayer).new.call(this);
    ;
  }).prototype = _engine.ClipRectLayer.prototype;
  dart.addRtiResources(_engine.ClipRectLayer, ["_engine|ClipRectLayer", "ui|ClipRectEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.ClipRectLayer, I[220]);
  var rect$5 = dart.privateName(_engine, "ClipRectOperation.rect");
  var clip$0 = dart.privateName(_engine, "ClipRectOperation.clip");
  _engine.ClipRectOperation = class ClipRectOperation extends core.Object {
    get rect() {
      return this[rect$5];
    }
    set rect(value) {
      super.rect = value;
    }
    get clip() {
      return this[clip$0];
    }
    set clip(value) {
      super.clip = value;
    }
    static ['_#new#tearOff'](rect, clip) {
      if (rect == null) dart.nullFailed(I[319], 77, 32, "rect");
      if (clip == null) dart.nullFailed(I[319], 77, 43, "clip");
      return new _engine.ClipRectOperation.new(rect, clip);
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 83, 27, "contentRect");
      return contentRect.intersect(this.rect);
    }
    pre(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 86, 24, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 86, 40, "contentRect");
      canvas.save();
      canvas.clipRect(this.rect, {doAntiAlias: this.clip != ui.Clip.hardEdge});
      if (this.clip == ui.Clip.antiAliasWithSaveLayer) {
        canvas.saveLayer(this.rect, ui.Paint.new());
      }
    }
    post(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 95, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 95, 41, "contentRect");
      if (this.clip == ui.Clip.antiAliasWithSaveLayer) {
        canvas.restore();
      }
      canvas.restore();
    }
    createPlatformViewStyling() {
      return C[903] || CT.C903;
    }
  };
  (_engine.ClipRectOperation.new = function(rect, clip) {
    if (rect == null) dart.nullFailed(I[319], 77, 32, "rect");
    if (clip == null) dart.nullFailed(I[319], 77, 43, "clip");
    this[rect$5] = rect;
    this[clip$0] = clip;
    ;
  }).prototype = _engine.ClipRectOperation.prototype;
  dart.addRtiResources(_engine.ClipRectOperation, ["_engine|ClipRectOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.ClipRectOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClipRectOperation))));
  dart.setLibraryUri(_engine.ClipRectOperation, I[220]);
  dart.setFieldSignature(_engine.ClipRectOperation, () => dart.global.Object.setPrototypeOf({
    rect: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    clip: {type: T$8.Clip(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ClipRectOperation))));
  const Object_PictureEngineLayer$36$2 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$2.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$2.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$2, _engine.PictureEngineLayer);
  _engine.ClipRRectLayer = class ClipRRectLayer extends Object_PictureEngineLayer$36$2 {
    static ['_#new#tearOff']() {
      return new _engine.ClipRRectLayer.new();
    }
  };
  (_engine.ClipRRectLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.ClipRRectLayer).new.call(this);
    ;
  }).prototype = _engine.ClipRRectLayer.prototype;
  dart.addRtiResources(_engine.ClipRRectLayer, ["_engine|ClipRRectLayer", "ui|ClipRRectEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.ClipRRectLayer, I[220]);
  var rrect$5 = dart.privateName(_engine, "ClipRRectOperation.rrect");
  var clip$1 = dart.privateName(_engine, "ClipRRectOperation.clip");
  _engine.ClipRRectOperation = class ClipRRectOperation extends core.Object {
    get rrect() {
      return this[rrect$5];
    }
    set rrect(value) {
      super.rrect = value;
    }
    get clip() {
      return this[clip$1];
    }
    set clip(value) {
      super.clip = value;
    }
    static ['_#new#tearOff'](rrect, clip) {
      if (rrect == null) dart.nullFailed(I[319], 113, 33, "rrect");
      if (clip == null) dart.nullFailed(I[319], 113, 45, "clip");
      return new _engine.ClipRRectOperation.new(rrect, clip);
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 119, 27, "contentRect");
      return contentRect.intersect(this.rrect.outerRect);
    }
    pre(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 122, 24, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 122, 40, "contentRect");
      canvas.save();
      canvas.clipRRect(this.rrect, {doAntiAlias: this.clip != ui.Clip.hardEdge});
      if (this.clip == ui.Clip.antiAliasWithSaveLayer) {
        canvas.saveLayer(this.rrect.outerRect, ui.Paint.new());
      }
    }
    post(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 131, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 131, 41, "contentRect");
      if (this.clip == ui.Clip.antiAliasWithSaveLayer) {
        canvas.restore();
      }
      canvas.restore();
    }
    createPlatformViewStyling() {
      return C[903] || CT.C903;
    }
  };
  (_engine.ClipRRectOperation.new = function(rrect, clip) {
    if (rrect == null) dart.nullFailed(I[319], 113, 33, "rrect");
    if (clip == null) dart.nullFailed(I[319], 113, 45, "clip");
    this[rrect$5] = rrect;
    this[clip$1] = clip;
    ;
  }).prototype = _engine.ClipRRectOperation.prototype;
  dart.addRtiResources(_engine.ClipRRectOperation, ["_engine|ClipRRectOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.ClipRRectOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClipRRectOperation))));
  dart.setLibraryUri(_engine.ClipRRectOperation, I[220]);
  dart.setFieldSignature(_engine.ClipRRectOperation, () => dart.global.Object.setPrototypeOf({
    rrect: {type: T$8.RRect(), isConst: false, isFinal: true, libraryUri: I[198]},
    clip: {type: T$8.Clip(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ClipRRectOperation))));
  const Object_PictureEngineLayer$36$3 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$3.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$3.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$3, _engine.PictureEngineLayer);
  _engine.ColorFilterLayer = class ColorFilterLayer extends Object_PictureEngineLayer$36$3 {
    static ['_#new#tearOff']() {
      return new _engine.ColorFilterLayer.new();
    }
  };
  (_engine.ColorFilterLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.ColorFilterLayer).new.call(this);
    ;
  }).prototype = _engine.ColorFilterLayer.prototype;
  dart.addRtiResources(_engine.ColorFilterLayer, ["_engine|ColorFilterLayer", "ui|ColorFilterEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.ColorFilterLayer, I[220]);
  var filter$4 = dart.privateName(_engine, "ColorFilterOperation.filter");
  _engine.ColorFilterOperation = class ColorFilterOperation extends core.Object {
    get filter() {
      return this[filter$4];
    }
    set filter(value) {
      super.filter = value;
    }
    static ['_#new#tearOff'](filter) {
      if (filter == null) dart.nullFailed(I[319], 149, 29, "filter");
      return new _engine.ColorFilterOperation.new(filter);
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 154, 27, "contentRect");
      return contentRect;
    }
    pre(canvas, contentRect) {
      let t$36564;
      if (canvas == null) dart.nullFailed(I[319], 157, 24, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 157, 40, "contentRect");
      canvas.saveLayer(contentRect, (t$36564 = ui.Paint.new(), (() => {
        t$36564.colorFilter = this.filter;
        return t$36564;
      })()));
    }
    post(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 162, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 162, 41, "contentRect");
      canvas.restore();
    }
    createPlatformViewStyling() {
      return C[903] || CT.C903;
    }
  };
  (_engine.ColorFilterOperation.new = function(filter) {
    if (filter == null) dart.nullFailed(I[319], 149, 29, "filter");
    this[filter$4] = filter;
    ;
  }).prototype = _engine.ColorFilterOperation.prototype;
  dart.addRtiResources(_engine.ColorFilterOperation, ["_engine|ColorFilterOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.ColorFilterOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ColorFilterOperation))));
  dart.setLibraryUri(_engine.ColorFilterOperation, I[220]);
  dart.setFieldSignature(_engine.ColorFilterOperation, () => dart.global.Object.setPrototypeOf({filter: {type: T$9.ColorFilter(), isConst: false, isFinal: true, libraryUri: I[198]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ColorFilterOperation))));
  const Object_PictureEngineLayer$36$4 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$4.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$4.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$4, _engine.PictureEngineLayer);
  _engine.ImageFilterLayer = class ImageFilterLayer extends Object_PictureEngineLayer$36$4 {
    static ['_#new#tearOff']() {
      return new _engine.ImageFilterLayer.new();
    }
  };
  (_engine.ImageFilterLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.ImageFilterLayer).new.call(this);
    ;
  }).prototype = _engine.ImageFilterLayer.prototype;
  dart.addRtiResources(_engine.ImageFilterLayer, ["_engine|ImageFilterLayer", "ui|ImageFilterEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.ImageFilterLayer, I[220]);
  var filter$5 = dart.privateName(_engine, "ImageFilterOperation.filter");
  var offset$9 = dart.privateName(_engine, "ImageFilterOperation.offset");
  _engine.ImageFilterOperation = class ImageFilterOperation extends core.Object {
    get filter() {
      return this[filter$5];
    }
    set filter(value) {
      super.filter = value;
    }
    get offset() {
      return this[offset$9];
    }
    set offset(value) {
      super.offset = value;
    }
    static ['_#new#tearOff'](filter, offset) {
      if (filter == null) dart.nullFailed(I[319], 174, 29, "filter");
      if (offset == null) dart.nullFailed(I[319], 174, 42, "offset");
      return new _engine.ImageFilterOperation.new(filter, offset);
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 180, 27, "contentRect");
      return this.filter.filterBounds(contentRect);
    }
    pre(canvas, contentRect) {
      let t$36564;
      if (canvas == null) dart.nullFailed(I[319], 183, 24, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 183, 40, "contentRect");
      if (!dart.equals(this.offset, ui.Offset.zero)) {
        canvas.save();
        canvas.translate(this.offset.dx, this.offset.dy);
      }
      let adjustedContentRect = this.filter.filterBounds(contentRect);
      canvas.saveLayer(adjustedContentRect, (t$36564 = ui.Paint.new(), (() => {
        t$36564.imageFilter = this.filter;
        return t$36564;
      })()));
    }
    post(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 193, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 193, 41, "contentRect");
      if (!dart.equals(this.offset, ui.Offset.zero)) {
        canvas.restore();
      }
      canvas.restore();
    }
    createPlatformViewStyling() {
      if (!dart.equals(this.offset, ui.Offset.zero)) {
        return new _engine.PlatformViewStyling.new({position: new _engine.PlatformViewPosition.offset(this.offset)});
      } else {
        return C[903] || CT.C903;
      }
    }
  };
  (_engine.ImageFilterOperation.new = function(filter, offset) {
    if (filter == null) dart.nullFailed(I[319], 174, 29, "filter");
    if (offset == null) dart.nullFailed(I[319], 174, 42, "offset");
    this[filter$5] = filter;
    this[offset$9] = offset;
    ;
  }).prototype = _engine.ImageFilterOperation.prototype;
  dart.addRtiResources(_engine.ImageFilterOperation, ["_engine|ImageFilterOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.ImageFilterOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ImageFilterOperation))));
  dart.setLibraryUri(_engine.ImageFilterOperation, I[220]);
  dart.setFieldSignature(_engine.ImageFilterOperation, () => dart.global.Object.setPrototypeOf({
    filter: {type: T$11.SceneImageFilter(), isConst: false, isFinal: true, libraryUri: I[220]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ImageFilterOperation))));
  const Object_PictureEngineLayer$36$5 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$5.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$5.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$5, _engine.PictureEngineLayer);
  _engine.OffsetLayer = class OffsetLayer extends Object_PictureEngineLayer$36$5 {
    static ['_#new#tearOff']() {
      return new _engine.OffsetLayer.new();
    }
  };
  (_engine.OffsetLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.OffsetLayer).new.call(this);
    ;
  }).prototype = _engine.OffsetLayer.prototype;
  dart.addRtiResources(_engine.OffsetLayer, ["_engine|OffsetLayer", "ui|OffsetEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.OffsetLayer, I[220]);
  var dx$3 = dart.privateName(_engine, "OffsetOperation.dx");
  var dy$3 = dart.privateName(_engine, "OffsetOperation.dy");
  _engine.OffsetOperation = class OffsetOperation extends core.Object {
    get dx() {
      return this[dx$3];
    }
    set dx(value) {
      super.dx = value;
    }
    get dy() {
      return this[dy$3];
    }
    set dy(value) {
      super.dy = value;
    }
    static ['_#new#tearOff'](dx, dy) {
      if (dx == null) dart.nullFailed(I[319], 216, 24, "dx");
      if (dy == null) dart.nullFailed(I[319], 216, 33, "dy");
      return new _engine.OffsetOperation.new(dx, dy);
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 222, 27, "contentRect");
      return contentRect.shift(new ui.Offset.new(this.dx, this.dy));
    }
    pre(canvas, cullRect) {
      if (canvas == null) dart.nullFailed(I[319], 225, 24, "canvas");
      if (cullRect == null) dart.nullFailed(I[319], 225, 40, "cullRect");
      canvas.save();
      canvas.translate(this.dx, this.dy);
    }
    post(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 231, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 231, 41, "contentRect");
      canvas.restore();
    }
    createPlatformViewStyling() {
      return new _engine.PlatformViewStyling.new({position: new _engine.PlatformViewPosition.offset(new ui.Offset.new(this.dx, this.dy))});
    }
  };
  (_engine.OffsetOperation.new = function(dx, dy) {
    if (dx == null) dart.nullFailed(I[319], 216, 24, "dx");
    if (dy == null) dart.nullFailed(I[319], 216, 33, "dy");
    this[dx$3] = dx;
    this[dy$3] = dy;
    ;
  }).prototype = _engine.OffsetOperation.prototype;
  dart.addRtiResources(_engine.OffsetOperation, ["_engine|OffsetOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.OffsetOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.OffsetOperation))));
  dart.setLibraryUri(_engine.OffsetOperation, I[220]);
  dart.setFieldSignature(_engine.OffsetOperation, () => dart.global.Object.setPrototypeOf({
    dx: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    dy: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.OffsetOperation))));
  const Object_PictureEngineLayer$36$6 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$6.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$6.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$6, _engine.PictureEngineLayer);
  _engine.OpacityLayer = class OpacityLayer extends Object_PictureEngineLayer$36$6 {
    static ['_#new#tearOff']() {
      return new _engine.OpacityLayer.new();
    }
  };
  (_engine.OpacityLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.OpacityLayer).new.call(this);
    ;
  }).prototype = _engine.OpacityLayer.prototype;
  dart.addRtiResources(_engine.OpacityLayer, ["_engine|OpacityLayer", "ui|OpacityEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.OpacityLayer, I[220]);
  var alpha$1 = dart.privateName(_engine, "OpacityOperation.alpha");
  var offset$10 = dart.privateName(_engine, "OpacityOperation.offset");
  _engine.OpacityOperation = class OpacityOperation extends core.Object {
    get alpha() {
      return this[alpha$1];
    }
    set alpha(value) {
      super.alpha = value;
    }
    get offset() {
      return this[offset$10];
    }
    set offset(value) {
      super.offset = value;
    }
    static ['_#new#tearOff'](alpha, offset) {
      if (alpha == null) dart.nullFailed(I[319], 245, 25, "alpha");
      if (offset == null) dart.nullFailed(I[319], 245, 37, "offset");
      return new _engine.OpacityOperation.new(alpha, offset);
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 251, 27, "contentRect");
      return contentRect.shift(this.offset);
    }
    pre(canvas, cullRect) {
      let t$36564;
      if (canvas == null) dart.nullFailed(I[319], 254, 24, "canvas");
      if (cullRect == null) dart.nullFailed(I[319], 254, 40, "cullRect");
      if (!dart.equals(this.offset, ui.Offset.zero)) {
        canvas.save();
        canvas.translate(this.offset.dx, this.offset.dy);
        cullRect = cullRect.shift(this.offset._negate());
      }
      canvas.saveLayer(cullRect, (t$36564 = ui.Paint.new(), (() => {
        t$36564.color = new ui.Color.fromARGB(this.alpha, 0, 0, 0);
        return t$36564;
      })()));
    }
    post(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 267, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 267, 41, "contentRect");
      canvas.restore();
      if (!dart.equals(this.offset, ui.Offset.zero)) {
        canvas.restore();
      }
    }
    createPlatformViewStyling() {
      return new _engine.PlatformViewStyling.new({position: !dart.equals(this.offset, ui.Offset.zero) ? new _engine.PlatformViewPosition.offset(this.offset) : C[904] || CT.C904, opacity: this.alpha[$toDouble]() / 255.0});
    }
  };
  (_engine.OpacityOperation.new = function(alpha, offset) {
    if (alpha == null) dart.nullFailed(I[319], 245, 25, "alpha");
    if (offset == null) dart.nullFailed(I[319], 245, 37, "offset");
    this[alpha$1] = alpha;
    this[offset$10] = offset;
    ;
  }).prototype = _engine.OpacityOperation.prototype;
  dart.addRtiResources(_engine.OpacityOperation, ["_engine|OpacityOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.OpacityOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.OpacityOperation))));
  dart.setLibraryUri(_engine.OpacityOperation, I[220]);
  dart.setFieldSignature(_engine.OpacityOperation, () => dart.global.Object.setPrototypeOf({
    alpha: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.OpacityOperation))));
  const Object_PictureEngineLayer$36$7 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$7.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$7.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$7, _engine.PictureEngineLayer);
  _engine.TransformLayer = class TransformLayer extends Object_PictureEngineLayer$36$7 {
    static ['_#new#tearOff']() {
      return new _engine.TransformLayer.new();
    }
  };
  (_engine.TransformLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.TransformLayer).new.call(this);
    ;
  }).prototype = _engine.TransformLayer.prototype;
  dart.addRtiResources(_engine.TransformLayer, ["_engine|TransformLayer", "ui|TransformEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.TransformLayer, I[220]);
  var transform$0 = dart.privateName(_engine, "TransformOperation.transform");
  var _memoizedMatrix = dart.privateName(_engine, "_memoizedMatrix");
  _engine.TransformOperation = class TransformOperation extends core.Object {
    get transform() {
      return this[transform$0];
    }
    set transform(value) {
      super.transform = value;
    }
    static ['_#new#tearOff'](transform) {
      if (transform == null) dart.nullFailed(I[319], 285, 27, "transform");
      return new _engine.TransformOperation.new(transform);
    }
    get matrix() {
      let t$36564;
      t$36564 = this[_memoizedMatrix];
      return t$36564 == null ? this[_memoizedMatrix] = new _engine.Matrix4.fromFloat32List(_engine.toMatrix32(this.transform)) : t$36564;
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 293, 27, "contentRect");
      return this.matrix.transformRect(contentRect);
    }
    pre(canvas, cullRect) {
      if (canvas == null) dart.nullFailed(I[319], 296, 24, "canvas");
      if (cullRect == null) dart.nullFailed(I[319], 296, 40, "cullRect");
      canvas.save();
      canvas.transform(this.transform);
    }
    post(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 302, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 302, 41, "contentRect");
      canvas.restore();
    }
    createPlatformViewStyling() {
      return new _engine.PlatformViewStyling.new({position: new _engine.PlatformViewPosition.transform(this.matrix)});
    }
  };
  (_engine.TransformOperation.new = function(transform) {
    if (transform == null) dart.nullFailed(I[319], 285, 27, "transform");
    this[_memoizedMatrix] = null;
    this[transform$0] = transform;
    ;
  }).prototype = _engine.TransformOperation.prototype;
  dart.addRtiResources(_engine.TransformOperation, ["_engine|TransformOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.TransformOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TransformOperation))));
  dart.setGetterSignature(_engine.TransformOperation, () => dart.global.Object.setPrototypeOf({matrix: T$9.Matrix4()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.TransformOperation))));
  dart.setLibraryUri(_engine.TransformOperation, I[220]);
  dart.setFieldSignature(_engine.TransformOperation, () => dart.global.Object.setPrototypeOf({
    transform: {type: T$0.Float64List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_memoizedMatrix]: {type: T$9.Matrix4N(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TransformOperation))));
  const Object_PictureEngineLayer$36$8 = class Object_PictureEngineLayer extends core.Object {};
  (Object_PictureEngineLayer$36$8.new = function() {
    _engine.PictureEngineLayer[dart.mixinNew].call(this);
  }).prototype = Object_PictureEngineLayer$36$8.prototype;
  dart.applyMixin(Object_PictureEngineLayer$36$8, _engine.PictureEngineLayer);
  _engine.ShaderMaskLayer = class ShaderMaskLayer extends Object_PictureEngineLayer$36$8 {
    static ['_#new#tearOff']() {
      return new _engine.ShaderMaskLayer.new();
    }
  };
  (_engine.ShaderMaskLayer.new = function() {
    dart.global.Object.getPrototypeOf(_engine.ShaderMaskLayer).new.call(this);
    ;
  }).prototype = _engine.ShaderMaskLayer.prototype;
  dart.addRtiResources(_engine.ShaderMaskLayer, ["_engine|ShaderMaskLayer", "ui|ShaderMaskEngineLayer", "ui|EngineLayer"]);
  dart.setLibraryUri(_engine.ShaderMaskLayer, I[220]);
  var shader$1 = dart.privateName(_engine, "ShaderMaskOperation.shader");
  var maskRect$1 = dart.privateName(_engine, "ShaderMaskOperation.maskRect");
  var blendMode$7 = dart.privateName(_engine, "ShaderMaskOperation.blendMode");
  _engine.ShaderMaskOperation = class ShaderMaskOperation extends core.Object {
    get shader() {
      return this[shader$1];
    }
    set shader(value) {
      super.shader = value;
    }
    get maskRect() {
      return this[maskRect$1];
    }
    set maskRect(value) {
      super.maskRect = value;
    }
    get blendMode() {
      return this[blendMode$7];
    }
    set blendMode(value) {
      super.blendMode = value;
    }
    static ['_#new#tearOff'](shader, maskRect, blendMode) {
      if (shader == null) dart.nullFailed(I[319], 316, 28, "shader");
      if (maskRect == null) dart.nullFailed(I[319], 316, 41, "maskRect");
      if (blendMode == null) dart.nullFailed(I[319], 316, 56, "blendMode");
      return new _engine.ShaderMaskOperation.new(shader, maskRect, blendMode);
    }
    mapRect(contentRect) {
      if (contentRect == null) dart.nullFailed(I[319], 323, 27, "contentRect");
      return contentRect;
    }
    pre(canvas, contentRect) {
      if (canvas == null) dart.nullFailed(I[319], 326, 24, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 326, 40, "contentRect");
      canvas.saveLayer(contentRect, ui.Paint.new());
    }
    post(canvas, contentRect) {
      let t$36564;
      if (canvas == null) dart.nullFailed(I[319], 334, 25, "canvas");
      if (contentRect == null) dart.nullFailed(I[319], 334, 41, "contentRect");
      canvas.save();
      canvas.translate(this.maskRect.left, this.maskRect.top);
      canvas.drawRect(new ui.Rect.fromLTWH(0.0, 0.0, this.maskRect.width, this.maskRect.height), (t$36564 = ui.Paint.new(), (() => {
        t$36564.blendMode = this.blendMode;
        t$36564.shader = this.shader;
        return t$36564;
      })()));
      canvas.restore();
      canvas.restore();
    }
    createPlatformViewStyling() {
      return C[903] || CT.C903;
    }
  };
  (_engine.ShaderMaskOperation.new = function(shader, maskRect, blendMode) {
    if (shader == null) dart.nullFailed(I[319], 316, 28, "shader");
    if (maskRect == null) dart.nullFailed(I[319], 316, 41, "maskRect");
    if (blendMode == null) dart.nullFailed(I[319], 316, 56, "blendMode");
    this[shader$1] = shader;
    this[maskRect$1] = maskRect;
    this[blendMode$7] = blendMode;
    ;
  }).prototype = _engine.ShaderMaskOperation.prototype;
  dart.addRtiResources(_engine.ShaderMaskOperation, ["_engine|ShaderMaskOperation", "_engine|LayerOperation"]);
  dart.setMethodSignature(_engine.ShaderMaskOperation, () => dart.global.Object.setPrototypeOf({
    mapRect: T$8.RectToRect(),
    pre: T$11.SceneCanvasAndRectTovoid(),
    post: T$11.SceneCanvasAndRectTovoid(),
    createPlatformViewStyling: T$11.VoidToPlatformViewStyling()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ShaderMaskOperation))));
  dart.setLibraryUri(_engine.ShaderMaskOperation, I[220]);
  dart.setFieldSignature(_engine.ShaderMaskOperation, () => dart.global.Object.setPrototypeOf({
    shader: {type: T$10.Shader(), isConst: false, isFinal: true, libraryUri: I[198]},
    maskRect: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    blendMode: {type: T$8.BlendMode(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ShaderMaskOperation))));
  var viewId$4 = dart.privateName(_engine, "PlatformView.viewId");
  var bounds$0 = dart.privateName(_engine, "PlatformView.bounds");
  var styling$ = dart.privateName(_engine, "PlatformView.styling");
  _engine.PlatformView = class PlatformView extends core.Object {
    get viewId() {
      return this[viewId$4];
    }
    set viewId(value) {
      super.viewId = value;
    }
    get bounds() {
      return this[bounds$0];
    }
    set bounds(value) {
      super.bounds = value;
    }
    get styling() {
      return this[styling$];
    }
    set styling(value) {
      super.styling = value;
    }
    static ['_#new#tearOff'](viewId, bounds, styling) {
      if (viewId == null) dart.nullFailed(I[319], 352, 21, "viewId");
      if (bounds == null) dart.nullFailed(I[319], 352, 34, "bounds");
      if (styling == null) dart.nullFailed(I[319], 352, 47, "styling");
      return new _engine.PlatformView.new(viewId, bounds, styling);
    }
  };
  (_engine.PlatformView.new = function(viewId, bounds, styling) {
    if (viewId == null) dart.nullFailed(I[319], 352, 21, "viewId");
    if (bounds == null) dart.nullFailed(I[319], 352, 34, "bounds");
    if (styling == null) dart.nullFailed(I[319], 352, 47, "styling");
    this[viewId$4] = viewId;
    this[bounds$0] = bounds;
    this[styling$] = styling;
    ;
  }).prototype = _engine.PlatformView.prototype;
  dart.addRtiResources(_engine.PlatformView, ["_engine|PlatformView"]);
  dart.setLibraryUri(_engine.PlatformView, I[220]);
  dart.setFieldSignature(_engine.PlatformView, () => dart.global.Object.setPrototypeOf({
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    bounds: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    styling: {type: T$11.PlatformViewStyling(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformView))));
  _engine.LayerSlice = class LayerSlice extends core.Object {};
  (_engine.LayerSlice.new = function() {
    ;
  }).prototype = _engine.LayerSlice.prototype;
  dart.addRtiResources(_engine.LayerSlice, ["_engine|LayerSlice"]);
  dart.setLibraryUri(_engine.LayerSlice, I[220]);
  var views$ = dart.privateName(_engine, "PlatformViewSlice.views");
  var occlusionRect$ = dart.privateName(_engine, "PlatformViewSlice.occlusionRect");
  _engine.PlatformViewSlice = class PlatformViewSlice extends core.Object {
    get views() {
      return this[views$];
    }
    set views(value) {
      if (value == null) dart.nullFailed(I[319], 370, 22, "views");
      this[views$] = value;
    }
    get occlusionRect() {
      return this[occlusionRect$];
    }
    set occlusionRect(value) {
      this[occlusionRect$] = value;
    }
    static ['_#new#tearOff'](views, occlusionRect) {
      if (views == null) dart.nullFailed(I[319], 368, 26, "views");
      return new _engine.PlatformViewSlice.new(views, occlusionRect);
    }
    dispose() {
    }
  };
  (_engine.PlatformViewSlice.new = function(views, occlusionRect) {
    if (views == null) dart.nullFailed(I[319], 368, 26, "views");
    this[views$] = views;
    this[occlusionRect$] = occlusionRect;
    ;
  }).prototype = _engine.PlatformViewSlice.prototype;
  dart.addRtiResources(_engine.PlatformViewSlice, ["_engine|PlatformViewSlice", "_engine|LayerSlice"]);
  dart.setMethodSignature(_engine.PlatformViewSlice, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PlatformViewSlice))));
  dart.setLibraryUri(_engine.PlatformViewSlice, I[220]);
  dart.setFieldSignature(_engine.PlatformViewSlice, () => dart.global.Object.setPrototypeOf({
    views: {type: T$11.ListOfPlatformView(), isConst: false, isFinal: false, libraryUri: I[11]},
    occlusionRect: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformViewSlice))));
  var picture$1 = dart.privateName(_engine, "PictureSlice.picture");
  _engine.PictureSlice = class PictureSlice extends core.Object {
    get picture() {
      return this[picture$1];
    }
    set picture(value) {
      if (value == null) dart.nullFailed(I[319], 385, 16, "picture");
      this[picture$1] = value;
    }
    static ['_#new#tearOff'](picture) {
      if (picture == null) dart.nullFailed(I[319], 383, 21, "picture");
      return new _engine.PictureSlice.new(picture);
    }
    dispose() {
      return this.picture.dispose();
    }
  };
  (_engine.PictureSlice.new = function(picture) {
    if (picture == null) dart.nullFailed(I[319], 383, 21, "picture");
    this[picture$1] = picture;
    ;
  }).prototype = _engine.PictureSlice.prototype;
  dart.addRtiResources(_engine.PictureSlice, ["_engine|PictureSlice", "_engine|LayerSlice"]);
  dart.setMethodSignature(_engine.PictureSlice, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PictureSlice))));
  dart.setLibraryUri(_engine.PictureSlice, I[220]);
  dart.setFieldSignature(_engine.PictureSlice, () => dart.global.Object.setPrototypeOf({picture: {type: T$11.ScenePicture(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PictureSlice))));
  _engine.LayerOperation = class LayerOperation extends core.Object {};
  (_engine.LayerOperation.new = function() {
    ;
  }).prototype = _engine.LayerOperation.prototype;
  dart.addRtiResources(_engine.LayerOperation, ["_engine|LayerOperation"]);
  dart.setLibraryUri(_engine.LayerOperation, I[220]);
  var offset$11 = dart.privateName(_engine, "PictureDrawCommand.offset");
  var picture$2 = dart.privateName(_engine, "PictureDrawCommand.picture");
  _engine.PictureDrawCommand = class PictureDrawCommand extends core.Object {
    get offset() {
      return this[offset$11];
    }
    set offset(value) {
      if (value == null) dart.nullFailed(I[319], 422, 13, "offset");
      this[offset$11] = value;
    }
    get picture() {
      return this[picture$2];
    }
    set picture(value) {
      if (value == null) dart.nullFailed(I[319], 423, 14, "picture");
      this[picture$2] = value;
    }
    static ['_#new#tearOff'](offset, picture) {
      if (offset == null) dart.nullFailed(I[319], 420, 27, "offset");
      if (picture == null) dart.nullFailed(I[319], 420, 40, "picture");
      return new _engine.PictureDrawCommand.new(offset, picture);
    }
  };
  (_engine.PictureDrawCommand.new = function(offset, picture) {
    if (offset == null) dart.nullFailed(I[319], 420, 27, "offset");
    if (picture == null) dart.nullFailed(I[319], 420, 40, "picture");
    this[offset$11] = offset;
    this[picture$2] = picture;
    ;
  }).prototype = _engine.PictureDrawCommand.prototype;
  dart.addRtiResources(_engine.PictureDrawCommand, ["_engine|PictureDrawCommand"]);
  dart.setLibraryUri(_engine.PictureDrawCommand, I[220]);
  dart.setFieldSignature(_engine.PictureDrawCommand, () => dart.global.Object.setPrototypeOf({
    offset: {type: T$8.Offset(), isConst: false, isFinal: false, libraryUri: I[198]},
    picture: {type: T$11.Picture(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PictureDrawCommand))));
  const offset$12 = PlatformViewPosition_offset;
  const transform$1 = PlatformViewPosition_transform;
  _engine.PlatformViewPosition = class PlatformViewPosition extends core.Object {
    get offset() {
      return this[offset$12];
    }
    set offset(value) {
      super.offset = value;
    }
    get transform() {
      return this[transform$1];
    }
    set transform(value) {
      super.transform = value;
    }
    static ['_#zero#tearOff']() {
      return new _engine.PlatformViewPosition.zero();
    }
    static ['_#offset#tearOff'](offset) {
      return new _engine.PlatformViewPosition.offset(offset);
    }
    static ['_#transform#tearOff'](transform) {
      return new _engine.PlatformViewPosition.transform(transform);
    }
    get isZero() {
      return this.offset == null && this.transform == null;
    }
    static combine(outer, inner) {
      if (outer == null) dart.nullFailed(I[319], 446, 60, "outer");
      if (inner == null) dart.nullFailed(I[319], 446, 88, "inner");
      if (dart.test(outer.isZero)) {
        return inner;
      }
      if (dart.test(inner.isZero)) {
        return outer;
      }
      let outerOffset = outer.offset;
      let innerOffset = inner.offset;
      if (outerOffset != null && innerOffset != null) {
        return new _engine.PlatformViewPosition.offset(outerOffset['+'](innerOffset));
      }
      let newTransform = null;
      if (outerOffset != null) {
        newTransform = _engine.Matrix4.translationValues(outerOffset.dx, outerOffset.dy, 0.0);
      } else {
        newTransform = dart.nullCheck(outer.transform).clone();
      }
      if (innerOffset != null) {
        newTransform.translate(innerOffset.dx, innerOffset.dy);
      } else {
        newTransform.multiply(dart.nullCheck(inner.transform));
      }
      return new _engine.PlatformViewPosition.transform(newTransform);
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!T$11.PlatformViewPosition()[_is](other)) {
        return false;
      }
      return dart.equals(this.offset, other.offset) && dart.equals(this.transform, other.transform);
    }
    get hashCode() {
      return core.Object.hash(this.offset, this.transform);
    }
  };
  (_engine.PlatformViewPosition.zero = function() {
    this[offset$12] = null;
    this[transform$1] = null;
    ;
  }).prototype = _engine.PlatformViewPosition.prototype;
  (_engine.PlatformViewPosition.offset = function(offset) {
    this[offset$12] = offset;
    this[transform$1] = null;
    ;
  }).prototype = _engine.PlatformViewPosition.prototype;
  (_engine.PlatformViewPosition.transform = function(transform) {
    this[transform$1] = transform;
    this[offset$12] = null;
    ;
  }).prototype = _engine.PlatformViewPosition.prototype;
  dart.addRtiResources(_engine.PlatformViewPosition, ["_engine|PlatformViewPosition"]);
  dart.setStaticMethodSignature(_engine.PlatformViewPosition, () => ['combine']);
  dart.setGetterSignature(_engine.PlatformViewPosition, () => dart.global.Object.setPrototypeOf({isZero: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PlatformViewPosition))));
  dart.setLibraryUri(_engine.PlatformViewPosition, I[220]);
  dart.setFieldSignature(_engine.PlatformViewPosition, () => dart.global.Object.setPrototypeOf({
    offset: {type: T$11.OffsetN(), isConst: false, isFinal: true, libraryUri: I[198]},
    transform: {type: T$9.Matrix4N(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformViewPosition))));
  dart.defineExtensionMethods(_engine.PlatformViewPosition, ['_equals']);
  dart.defineExtensionAccessors(_engine.PlatformViewPosition, ['hashCode']);
  const position$0 = PlatformViewStyling_position;
  const opacity$ = PlatformViewStyling_opacity;
  _engine.PlatformViewStyling = class PlatformViewStyling extends core.Object {
    get position() {
      return this[position$0];
    }
    set position(value) {
      super.position = value;
    }
    get opacity() {
      return this[opacity$];
    }
    set opacity(value) {
      super.opacity = value;
    }
    static ['_#new#tearOff'](opts) {
      let position = opts && 'position' in opts ? opts.position : C[904] || CT.C904;
      if (position == null) dart.nullFailed(I[319], 499, 10, "position");
      let opacity = opts && 'opacity' in opts ? opts.opacity : 1;
      if (opacity == null) dart.nullFailed(I[319], 500, 10, "opacity");
      return new _engine.PlatformViewStyling.new({position: position, opacity: opacity});
    }
    get isDefault() {
      return dart.test(this.position.isZero) && this.opacity === 1.0;
    }
    static combine(outer, inner) {
      if (outer == null) dart.nullFailed(I[319], 508, 58, "outer");
      if (inner == null) dart.nullFailed(I[319], 508, 85, "inner");
      if (dart.test(outer.isDefault)) {
        return inner;
      }
      if (dart.test(inner.isDefault)) {
        return outer;
      }
      return new _engine.PlatformViewStyling.new({position: _engine.PlatformViewPosition.combine(outer.position, inner.position), opacity: dart.notNull(outer.opacity) * dart.notNull(inner.opacity)});
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!T$11.PlatformViewStyling()[_is](other)) {
        return false;
      }
      return dart.equals(this.position, other.position) && this.opacity == other.opacity;
    }
    get hashCode() {
      return core.Object.hash(this.position, this.opacity);
    }
  };
  (_engine.PlatformViewStyling.new = function(opts) {
    let position = opts && 'position' in opts ? opts.position : C[904] || CT.C904;
    if (position == null) dart.nullFailed(I[319], 499, 10, "position");
    let opacity = opts && 'opacity' in opts ? opts.opacity : 1;
    if (opacity == null) dart.nullFailed(I[319], 500, 10, "opacity");
    this[position$0] = position;
    this[opacity$] = opacity;
    ;
  }).prototype = _engine.PlatformViewStyling.prototype;
  dart.addRtiResources(_engine.PlatformViewStyling, ["_engine|PlatformViewStyling"]);
  dart.setStaticMethodSignature(_engine.PlatformViewStyling, () => ['combine']);
  dart.setGetterSignature(_engine.PlatformViewStyling, () => dart.global.Object.setPrototypeOf({isDefault: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PlatformViewStyling))));
  dart.setLibraryUri(_engine.PlatformViewStyling, I[220]);
  dart.setFieldSignature(_engine.PlatformViewStyling, () => dart.global.Object.setPrototypeOf({
    position: {type: T$11.PlatformViewPosition(), isConst: false, isFinal: true, libraryUri: I[220]},
    opacity: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformViewStyling))));
  dart.defineExtensionMethods(_engine.PlatformViewStyling, ['_equals']);
  dart.defineExtensionAccessors(_engine.PlatformViewStyling, ['hashCode']);
  var parent$1 = dart.privateName(_engine, "LayerBuilder.parent");
  var layer$ = dart.privateName(_engine, "LayerBuilder.layer");
  var operation$ = dart.privateName(_engine, "LayerBuilder.operation");
  var pendingPictures = dart.privateName(_engine, "LayerBuilder.pendingPictures");
  var pendingPlatformViews = dart.privateName(_engine, "LayerBuilder.pendingPlatformViews");
  var picturesRect = dart.privateName(_engine, "LayerBuilder.picturesRect");
  var platformViewRect = dart.privateName(_engine, "LayerBuilder.platformViewRect");
  var _memoizedPlatformViewStyling = dart.privateName(_engine, "_memoizedPlatformViewStyling");
  var _createRecorder = dart.privateName(_engine, "_createRecorder");
  _engine.LayerBuilder = class LayerBuilder extends core.Object {
    get parent() {
      return this[parent$1];
    }
    set parent(value) {
      super.parent = value;
    }
    get layer() {
      return this[layer$];
    }
    set layer(value) {
      super.layer = value;
    }
    get operation() {
      return this[operation$];
    }
    set operation(value) {
      super.operation = value;
    }
    get pendingPictures() {
      return this[pendingPictures];
    }
    set pendingPictures(value) {
      super.pendingPictures = value;
    }
    get pendingPlatformViews() {
      return this[pendingPlatformViews];
    }
    set pendingPlatformViews(value) {
      if (value == null) dart.nullFailed(I[319], 564, 22, "pendingPlatformViews");
      this[pendingPlatformViews] = value;
    }
    get picturesRect() {
      return this[picturesRect];
    }
    set picturesRect(value) {
      this[picturesRect] = value;
    }
    get platformViewRect() {
      return this[platformViewRect];
    }
    set platformViewRect(value) {
      this[platformViewRect] = value;
    }
    static rootLayer() {
      return new _engine.LayerBuilder.__(null, new _engine.EngineRootLayer.new(), null);
    }
    static ['_#rootLayer#tearOff']() {
      return _engine.LayerBuilder.rootLayer();
    }
    static childLayer(opts) {
      let parent = opts && 'parent' in opts ? opts.parent : null;
      if (parent == null) dart.nullFailed(I[319], 545, 27, "parent");
      let layer = opts && 'layer' in opts ? opts.layer : null;
      if (layer == null) dart.nullFailed(I[319], 546, 33, "layer");
      let operation = opts && 'operation' in opts ? opts.operation : null;
      if (operation == null) dart.nullFailed(I[319], 547, 29, "operation");
      return new _engine.LayerBuilder.__(parent, layer, operation);
    }
    static ['_#childLayer#tearOff'](opts) {
      let parent = opts && 'parent' in opts ? opts.parent : null;
      if (parent == null) dart.nullFailed(I[319], 545, 27, "parent");
      let layer = opts && 'layer' in opts ? opts.layer : null;
      if (layer == null) dart.nullFailed(I[319], 546, 33, "layer");
      let operation = opts && 'operation' in opts ? opts.operation : null;
      if (operation == null) dart.nullFailed(I[319], 547, 29, "operation");
      return _engine.LayerBuilder.childLayer({parent: parent, layer: layer, operation: operation});
    }
    static ['_#_#tearOff'](parent, layer, operation) {
      if (layer == null) dart.nullFailed(I[319], 554, 10, "layer");
      return new _engine.LayerBuilder.__(parent, layer, operation);
    }
    get platformViewStyling() {
      let t$36565, t$36565$, t$36564;
      t$36564 = this[_memoizedPlatformViewStyling];
      return t$36564 == null ? this[_memoizedPlatformViewStyling] = (t$36565$ = (t$36565 = this.operation, t$36565 == null ? null : t$36565.createPlatformViewStyling()), t$36565$ == null ? C[903] || CT.C903 : t$36565$) : t$36564;
    }
    [_createRecorder](rect) {
      if (rect == null) dart.nullFailed(I[319], 574, 61, "rect");
      if (_engine.LayerBuilder.debugRecorderFactory != null) {
        return dart.nullCheck(_engine.LayerBuilder.debugRecorderFactory)(rect);
      }
      let recorder = ui.PictureRecorder.new();
      let canvas = T$11.SceneCanvas()[_as](ui.Canvas.new(recorder, rect));
      return dart.recordLiteral("2;", 2, void 0, [recorder, canvas]);
    }
    flushSlices() {
      let t$36564, t$36564$, t$36564$0, t$36569, t$36569$;
      if (dart.test(this.pendingPictures[$isNotEmpty])) {
        let drawnRect = (t$36564 = this.picturesRect, t$36564 == null ? ui.Rect.zero : t$36564);
        let rect = (t$36564$0 = (t$36564$ = this.operation, t$36564$ == null ? null : t$36564$.mapRect(drawnRect)), t$36564$0 == null ? drawnRect : t$36564$0);
        let recorder = null;
        let canvas = null;
        {
          let t$36$350$350 = this[_createRecorder](rect);
          let t$36$350$351 = null;
          let t$36$350$351$35isSet = false;
          let t$36$350$352 = null;
          let t$36$350$352$35isSet = false;
          if (!(T$11.PictureRecorder()[_is](t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1)) && (recorder = t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1), true) && T$11.SceneCanvas()[_is](t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2)) && (canvas = t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2), true))) dart.throw(new core.StateError.new("Pattern matching error"));
        }
        t$36569 = this.operation;
        t$36569 == null ? null : t$36569.pre(canvas, rect);
        for (let command of this.pendingPictures) {
          if (!dart.equals(command.offset, ui.Offset.zero)) {
            canvas.save();
            canvas.translate(command.offset.dx, command.offset.dy);
            canvas.drawPicture(command.picture);
            canvas.restore();
          } else {
            canvas.drawPicture(command.picture);
          }
        }
        t$36569$ = this.operation;
        t$36569$ == null ? null : t$36569$.post(canvas, rect);
        let picture = recorder.endRecording();
        this.layer.slices[$add](new _engine.PictureSlice.new(T$11.ScenePicture()[_as](picture)));
      }
      if (dart.test(this.pendingPlatformViews[$isNotEmpty])) {
        let occlusionRect = this.platformViewRect;
        if (occlusionRect != null && this.operation != null) {
          occlusionRect = dart.nullCheck(this.operation).mapRect(occlusionRect);
        }
        this.layer.slices[$add](new _engine.PlatformViewSlice.new(this.pendingPlatformViews, occlusionRect));
      }
      this.pendingPictures[$clear]();
      this.pendingPlatformViews = G$.JSArrayOfPlatformView().of([]);
      this.picturesRect = null;
      this.platformViewRect = null;
    }
    addPicture(offset, picture, opts) {
      let t$36569, t$36569$;
      if (offset == null) dart.nullFailed(I[319], 627, 15, "offset");
      if (picture == null) dart.nullFailed(I[319], 628, 16, "picture");
      let isComplexHint = opts && 'isComplexHint' in opts ? opts.isComplexHint : false;
      if (isComplexHint == null) dart.nullFailed(I[319], 629, 10, "isComplexHint");
      let willChangeHint = opts && 'willChangeHint' in opts ? opts.willChangeHint : false;
      if (willChangeHint == null) dart.nullFailed(I[319], 630, 10, "willChangeHint");
      let cullRect = T$11.ScenePicture()[_as](picture).cullRect;
      let shiftedRect = cullRect.shift(offset);
      let currentPlatformViewRect = this.platformViewRect;
      if (currentPlatformViewRect != null) {
        if (dart.test(this.pendingPictures[$isEmpty]) || dart.test(currentPlatformViewRect.overlaps(shiftedRect))) {
          this.flushSlices();
        }
      }
      this.pendingPictures[$add](new _engine.PictureDrawCommand.new(offset, picture));
      this.picturesRect = (t$36569$ = (t$36569 = this.picturesRect, t$36569 == null ? null : t$36569.expandToInclude(shiftedRect)), t$36569$ == null ? shiftedRect : t$36569$);
    }
    addPlatformView(viewId, opts) {
      let t$36569, t$36569$;
      if (viewId == null) dart.nullFailed(I[319], 658, 9, "viewId");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[319], 659, 15, "offset");
      let width = opts && 'width' in opts ? opts.width : 0;
      if (width == null) dart.nullFailed(I[319], 660, 12, "width");
      let height = opts && 'height' in opts ? opts.height : 0;
      if (height == null) dart.nullFailed(I[319], 661, 12, "height");
      let bounds = new ui.Rect.fromLTWH(offset.dx, offset.dy, width, height);
      this.platformViewRect = (t$36569$ = (t$36569 = this.platformViewRect, t$36569 == null ? null : t$36569.expandToInclude(bounds)), t$36569$ == null ? bounds : t$36569$);
      this.pendingPlatformViews[$add](new _engine.PlatformView.new(viewId, bounds, this.platformViewStyling));
    }
    mergeLayer(layer) {
      let t$36570, t$36570$;
      if (layer == null) dart.nullFailed(I[319], 668, 38, "layer");
      for (let slice of layer.slices) {
        L6: {
          let t$36$350$350 = slice;
          {
            if (T$11.PictureSlice()[_is](t$36$350$350)) {
              {
                this.addPicture(ui.Offset.zero, slice.picture);
                break L6;
              }
            }
          }
          {
            if (T$11.PlatformViewSlice()[_is](t$36$350$350)) {
              {
                let occlusionRect = slice.occlusionRect;
                if (occlusionRect != null) {
                  this.platformViewRect = (t$36570$ = (t$36570 = this.platformViewRect, t$36570 == null ? null : t$36570.expandToInclude(occlusionRect)), t$36570$ == null ? occlusionRect : t$36570$);
                }
                for (let view of slice.views) {
                  let styling = _engine.PlatformViewStyling.combine(this.platformViewStyling, view.styling);
                  this.pendingPlatformViews[$add](new _engine.PlatformView.new(view.viewId, view.bounds, styling));
                }
              }
            }
            break L6;
          }
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
        }
      }
    }
    build() {
      this.flushSlices();
      return this.layer;
    }
  };
  (_engine.LayerBuilder.__ = function(parent, layer, operation) {
    if (layer == null) dart.nullFailed(I[319], 554, 10, "layer");
    this[pendingPictures] = G$.JSArrayOfPictureDrawCommand().of([]);
    this[pendingPlatformViews] = G$.JSArrayOfPlatformView().of([]);
    this[picturesRect] = null;
    this[platformViewRect] = null;
    this[_memoizedPlatformViewStyling] = null;
    this[parent$1] = parent;
    this[layer$] = layer;
    this[operation$] = operation;
    ;
  }).prototype = _engine.LayerBuilder.prototype;
  dart.addRtiResources(_engine.LayerBuilder, ["_engine|LayerBuilder"]);
  dart.setMethodSignature(_engine.LayerBuilder, () => dart.global.Object.setPrototypeOf({
    [_createRecorder]: T$11.RectToRec(),
    flushSlices: T$.VoidTovoid(),
    addPicture: T$10.OffsetAndPicture__Tovoid(),
    addPlatformView: T$10.int__Tovoid$1(),
    mergeLayer: T$11.PictureEngineLayerTovoid(),
    build: T$11.VoidToPictureEngineLayer()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LayerBuilder))));
  dart.setStaticMethodSignature(_engine.LayerBuilder, () => ['rootLayer', 'childLayer']);
  dart.setGetterSignature(_engine.LayerBuilder, () => dart.global.Object.setPrototypeOf({platformViewStyling: T$11.PlatformViewStyling()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.LayerBuilder))));
  dart.setLibraryUri(_engine.LayerBuilder, I[220]);
  dart.setFieldSignature(_engine.LayerBuilder, () => dart.global.Object.setPrototypeOf({
    parent: {type: T$11.LayerBuilderN(), isConst: false, isFinal: true, libraryUri: I[220]},
    layer: {type: T$11.PictureEngineLayer(), isConst: false, isFinal: true, libraryUri: I[220]},
    operation: {type: T$11.LayerOperationN(), isConst: false, isFinal: true, libraryUri: I[220]},
    pendingPictures: {type: T$11.ListOfPictureDrawCommand(), isConst: false, isFinal: true, libraryUri: I[11]},
    pendingPlatformViews: {type: T$11.ListOfPlatformView(), isConst: false, isFinal: false, libraryUri: I[11]},
    picturesRect: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    platformViewRect: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_memoizedPlatformViewStyling]: {type: T$11.PlatformViewStylingN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LayerBuilder))));
  dart.setStaticFieldSignature(_engine.LayerBuilder, () => ['debugRecorderFactory']);
  dart.defineLazy(_engine.LayerBuilder, {
    /*_engine.LayerBuilder.debugRecorderFactory*/get debugRecorderFactory() {
      return null;
    },
    set debugRecorderFactory(value) {}
  }, false);
  var element$2 = dart.privateName(_engine, "ContextMenu.element");
  var _enabled = dart.privateName(_engine, "_enabled");
  _engine.ContextMenu = class ContextMenu extends core.Object {
    get element() {
      return this[element$2];
    }
    set element(value) {
      super.element = value;
    }
    static ['_#new#tearOff'](element) {
      if (element == null) dart.nullFailed(I[320], 9, 20, "element");
      return new _engine.ContextMenu.new(element);
    }
    disable() {
      if (!dart.test(this[_enabled])) {
        return;
      }
      this[_enabled] = false;
      _engine['DomEventTargetExtension|addEventListener'](this.element, "contextmenu", _engine.preventDefaultListener);
    }
    enable() {
      if (dart.test(this[_enabled])) {
        return;
      }
      this[_enabled] = true;
      _engine['DomEventTargetExtension|removeEventListener'](this.element, "contextmenu", _engine.preventDefaultListener);
    }
  };
  (_engine.ContextMenu.new = function(element) {
    if (element == null) dart.nullFailed(I[320], 9, 20, "element");
    this[_enabled] = true;
    this[element$2] = element;
    ;
  }).prototype = _engine.ContextMenu.prototype;
  dart.addRtiResources(_engine.ContextMenu, ["_engine|ContextMenu"]);
  dart.setMethodSignature(_engine.ContextMenu, () => dart.global.Object.setPrototypeOf({
    disable: T$.VoidTovoid(),
    enable: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ContextMenu))));
  dart.setLibraryUri(_engine.ContextMenu, I[220]);
  dart.setFieldSignature(_engine.ContextMenu, () => dart.global.Object.setPrototypeOf({
    element: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_enabled]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ContextMenu))));
  var element$3 = dart.privateName(_engine, "MouseCursor.element");
  _engine.MouseCursor = class MouseCursor extends core.Object {
    get element() {
      return this[element$3];
    }
    set element(value) {
      super.element = value;
    }
    static ['_#new#tearOff'](element) {
      if (element == null) dart.nullFailed(I[321], 11, 20, "element");
      return new _engine.MouseCursor.new(element);
    }
    static _mapKindToCssValue(kind) {
      let t$36570;
      t$36570 = _engine.MouseCursor._kindToCssValueMap[$_get](kind);
      return t$36570 == null ? "default" : t$36570;
    }
    activateSystemCursor(kind) {
      let cssValue = _engine.MouseCursor._mapKindToCssValue(kind);
      if (cssValue === "default") {
        _engine['DomCSSStyleDeclarationExtension|removeProperty'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body")), "style"), "cursor");
      } else {
        _engine['DomCSSStyleDeclarationExtension|set#cursor'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body")), "style"), cssValue);
      }
    }
  };
  (_engine.MouseCursor.new = function(element) {
    if (element == null) dart.nullFailed(I[321], 11, 20, "element");
    this[element$3] = element;
    ;
  }).prototype = _engine.MouseCursor.prototype;
  dart.addRtiResources(_engine.MouseCursor, ["_engine|MouseCursor"]);
  dart.setMethodSignature(_engine.MouseCursor, () => dart.global.Object.setPrototypeOf({activateSystemCursor: T$2.StringNTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MouseCursor))));
  dart.setStaticMethodSignature(_engine.MouseCursor, () => ['_mapKindToCssValue']);
  dart.setLibraryUri(_engine.MouseCursor, I[220]);
  dart.setFieldSignature(_engine.MouseCursor, () => dart.global.Object.setPrototypeOf({element: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MouseCursor))));
  dart.setStaticFieldSignature(_engine.MouseCursor, () => ['_kindToCssValueMap']);
  dart.defineLazy(_engine.MouseCursor, {
    /*_engine.MouseCursor._kindToCssValueMap*/get _kindToCssValueMap() {
      return C[905] || CT.C905;
    }
  }, false);
  var __BrowserHistory__unsubscribe = dart.privateName(_engine, "_#BrowserHistory#_unsubscribe");
  var __BrowserHistory__unsubscribe_isSet = dart.privateName(_engine, "_#BrowserHistory#_unsubscribe#isSet");
  var _isTornDown = dart.privateName(_engine, "_isTornDown");
  var _unsubscribe = dart.privateName(_engine, "_unsubscribe");
  var _setupStrategy = dart.privateName(_engine, "_setupStrategy");
  _engine.BrowserHistory = class BrowserHistory extends core.Object {
    get [_unsubscribe]() {
      let t$36570;
      return dart.test(this[__BrowserHistory__unsubscribe_isSet]) ? (t$36570 = this[__BrowserHistory__unsubscribe], t$36570) : dart.throw(new _internal.LateError.fieldNI("_unsubscribe"));
    }
    set [_unsubscribe](_unsubscribe$35param) {
      if (_unsubscribe$35param == null) dart.nullFailed(I[322], 40, 24, "_unsubscribe#param");
      this[__BrowserHistory__unsubscribe_isSet] = true;
      this[__BrowserHistory__unsubscribe] = _unsubscribe$35param;
    }
    [_setupStrategy](strategy) {
      if (strategy == null) dart.nullFailed(I[322], 48, 42, "strategy");
      this[_unsubscribe] = strategy.addPopStateListener(dart.bind(this, 'onPopState'));
    }
    dispose() {
      if (dart.test(this[_isDisposed]) || this.urlStrategy == null) {
        return;
      }
      this[_isDisposed] = true;
      this[_unsubscribe]();
    }
    exit() {
      return async.async(T$.void(), (function* exit() {
        if (this.urlStrategy != null) {
          yield this.tearDown();
          yield dart.nullCheck(this.urlStrategy).go(-1);
        }
      }).bind(this));
    }
    back() {
      return async.async(T$.void(), (function* back() {
        let t$36570;
        t$36570 = this.urlStrategy;
        return t$36570 == null ? null : t$36570.go(-1);
      }).bind(this));
    }
    get currentPath() {
      let t$36570, t$36570$;
      t$36570$ = (t$36570 = this.urlStrategy, t$36570 == null ? null : t$36570.getPath());
      return t$36570$ == null ? "/" : t$36570$;
    }
    get currentState() {
      let t$36570;
      t$36570 = this.urlStrategy;
      return t$36570 == null ? null : t$36570.getState();
    }
  };
  (_engine.BrowserHistory.new = function() {
    this[__BrowserHistory__unsubscribe] = null;
    this[__BrowserHistory__unsubscribe_isSet] = false;
    this[_isTornDown] = false;
    this[_isDisposed] = false;
    ;
  }).prototype = _engine.BrowserHistory.prototype;
  dart.addRtiResources(_engine.BrowserHistory, ["_engine|BrowserHistory"]);
  dart.setMethodSignature(_engine.BrowserHistory, () => dart.global.Object.setPrototypeOf({
    [_setupStrategy]: T$11.UrlStrategyTovoid(),
    dispose: T$.VoidTovoid(),
    exit: T$.VoidToFutureOfvoid(),
    back: T$.VoidToFutureOfvoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BrowserHistory))));
  dart.setGetterSignature(_engine.BrowserHistory, () => dart.global.Object.setPrototypeOf({
    [_unsubscribe]: T$.VoidTovoid(),
    currentPath: T$.String(),
    currentState: T$.ObjectN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.BrowserHistory))));
  dart.setSetterSignature(_engine.BrowserHistory, () => dart.global.Object.setPrototypeOf({[_unsubscribe]: T$.VoidTovoid()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.BrowserHistory))));
  dart.setLibraryUri(_engine.BrowserHistory, I[220]);
  dart.setFieldSignature(_engine.BrowserHistory, () => dart.global.Object.setPrototypeOf({
    [__BrowserHistory__unsubscribe]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [__BrowserHistory__unsubscribe_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isTornDown]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isDisposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.BrowserHistory))));
  var urlStrategy$ = dart.privateName(_engine, "MultiEntriesBrowserHistory.urlStrategy");
  var __MultiEntriesBrowserHistory__lastSeenSerialCount = dart.privateName(_engine, "_#MultiEntriesBrowserHistory#_lastSeenSerialCount");
  var __MultiEntriesBrowserHistory__lastSeenSerialCount_isSet = dart.privateName(_engine, "_#MultiEntriesBrowserHistory#_lastSeenSerialCount#isSet");
  var _hasSerialCount = dart.privateName(_engine, "_hasSerialCount");
  var _tagWithSerialCount = dart.privateName(_engine, "_tagWithSerialCount");
  var _lastSeenSerialCount = dart.privateName(_engine, "_lastSeenSerialCount");
  var _currentSerialCount = dart.privateName(_engine, "_currentSerialCount");
  _engine.MultiEntriesBrowserHistory = class MultiEntriesBrowserHistory extends _engine.BrowserHistory {
    get urlStrategy() {
      return this[urlStrategy$];
    }
    set urlStrategy(value) {
      super.urlStrategy = value;
    }
    static ['_#new#tearOff'](opts) {
      let urlStrategy = opts && 'urlStrategy' in opts ? opts.urlStrategy : null;
      return new _engine.MultiEntriesBrowserHistory.new({urlStrategy: urlStrategy});
    }
    get [_lastSeenSerialCount]() {
      let t$36570;
      return dart.test(this[__MultiEntriesBrowserHistory__lastSeenSerialCount_isSet]) ? (t$36570 = this[__MultiEntriesBrowserHistory__lastSeenSerialCount], t$36570) : dart.throw(new _internal.LateError.fieldNI("_lastSeenSerialCount"));
    }
    set [_lastSeenSerialCount](_lastSeenSerialCount$35param) {
      if (_lastSeenSerialCount$35param == null) dart.nullFailed(I[322], 138, 12, "_lastSeenSerialCount#param");
      this[__MultiEntriesBrowserHistory__lastSeenSerialCount_isSet] = true;
      this[__MultiEntriesBrowserHistory__lastSeenSerialCount] = _lastSeenSerialCount$35param;
    }
    get [_currentSerialCount]() {
      if (dart.test(this[_hasSerialCount](this.currentState))) {
        let stateMap = T$.Map()[_as](dart.nullCheck(this.currentState));
        return T$.double()[_as](stateMap[$_get]("serialCount"))[$toInt]();
      }
      return 0;
    }
    [_tagWithSerialCount](originialState, count) {
      if (count == null) dart.nullFailed(I[322], 148, 58, "count");
      return new _js_helper.LinkedMap.from(["serialCount", count[$toDouble](), "state", originialState]);
    }
    [_hasSerialCount](state) {
      return T$.Map()[_is](state) && state[$_get]("serialCount") != null;
    }
    setRouteName(routeName, opts) {
      let state = opts && 'state' in opts ? opts.state : null;
      let replace = opts && 'replace' in opts ? opts.replace : false;
      if (replace == null) dart.nullFailed(I[322], 160, 61, "replace");
      if (this.urlStrategy != null) {
        if (!(routeName != null)) dart.assertFailed(null, I[322], 162, 14, "routeName != null");
        if (dart.test(replace)) {
          dart.nullCheck(this.urlStrategy).replaceState(this[_tagWithSerialCount](state, this[_lastSeenSerialCount]), "flutter", dart.nullCheck(routeName));
        } else {
          this[_lastSeenSerialCount] = dart.notNull(this[_lastSeenSerialCount]) + 1;
          dart.nullCheck(this.urlStrategy).pushState(this[_tagWithSerialCount](state, this[_lastSeenSerialCount]), "flutter", dart.nullCheck(routeName));
        }
      }
    }
    onPopState(state) {
      let t$36570;
      if (!(this.urlStrategy != null)) dart.assertFailed(null, I[322], 182, 12, "urlStrategy != null");
      if (!dart.test(this[_hasSerialCount](state))) {
        dart.nullCheck(this.urlStrategy).replaceState(this[_tagWithSerialCount](state, dart.notNull(this[_lastSeenSerialCount]) + 1), "flutter", this.currentPath);
      }
      this[_lastSeenSerialCount] = this[_currentSerialCount];
      _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/navigation", (C[847] || CT.C847).encodeMethodCall(new _engine.MethodCall.new("pushRouteInformation", new _js_helper.LinkedMap.from(["location", this.currentPath, "state", (t$36570 = T$2.MapN()[_as](state), t$36570 == null ? null : t$36570[$_get]("state"))]))), dart.fn(_ => {
      }, T$8.ByteDataNTovoid()));
    }
    tearDown() {
      return async.async(T$.void(), (function* tearDown() {
        this.dispose();
        if (dart.test(this[_isTornDown]) || this.urlStrategy == null) {
          return;
        }
        this[_isTornDown] = true;
        if (!dart.test(this[_hasSerialCount](this.currentState))) dart.assertFailed(this.currentState == null ? "unexpected null history state" : "history state is missing field 'serialCount'", I[322], 216, 7, "_hasSerialCount(currentState)");
        let backCount = this[_currentSerialCount];
        if (dart.notNull(backCount) > 0) {
          yield dart.nullCheck(this.urlStrategy).go(-dart.notNull(backCount));
        }
        if (!(dart.test(this[_hasSerialCount](this.currentState)) && this[_currentSerialCount] === 0)) dart.assertFailed(null, I[322], 226, 12, "_hasSerialCount(currentState) && _currentSerialCount == 0");
        let stateMap = T$.Map()[_as](dart.nullCheck(this.currentState));
        dart.nullCheck(this.urlStrategy).replaceState(stateMap[$_get]("state"), "flutter", this.currentPath);
      }).bind(this));
    }
  };
  (_engine.MultiEntriesBrowserHistory.new = function(opts) {
    let urlStrategy = opts && 'urlStrategy' in opts ? opts.urlStrategy : null;
    this[__MultiEntriesBrowserHistory__lastSeenSerialCount] = null;
    this[__MultiEntriesBrowserHistory__lastSeenSerialCount_isSet] = false;
    this[urlStrategy$] = urlStrategy;
    dart.global.Object.getPrototypeOf(_engine.MultiEntriesBrowserHistory).new.call(this);
    let strategy = this.urlStrategy;
    if (strategy == null) {
      return;
    }
    this[_setupStrategy](strategy);
    if (!dart.test(this[_hasSerialCount](this.currentState))) {
      strategy.replaceState(this[_tagWithSerialCount](this.currentState, 0), "flutter", this.currentPath);
    }
    this[_lastSeenSerialCount] = this[_currentSerialCount];
  }).prototype = _engine.MultiEntriesBrowserHistory.prototype;
  dart.addRtiResources(_engine.MultiEntriesBrowserHistory, ["_engine|MultiEntriesBrowserHistory"]);
  dart.setMethodSignature(_engine.MultiEntriesBrowserHistory, () => dart.global.Object.setPrototypeOf({
    [_tagWithSerialCount]: T$11.ObjectNAndintToObject(),
    [_hasSerialCount]: T$.ObjectNTobool(),
    setRouteName: T$11.StringN__Tovoid$1(),
    onPopState: T$.ObjectNTovoid(),
    tearDown: T$.VoidToFutureOfvoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MultiEntriesBrowserHistory))));
  dart.setGetterSignature(_engine.MultiEntriesBrowserHistory, () => dart.global.Object.setPrototypeOf({
    [_lastSeenSerialCount]: T$.int(),
    [_currentSerialCount]: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.MultiEntriesBrowserHistory))));
  dart.setSetterSignature(_engine.MultiEntriesBrowserHistory, () => dart.global.Object.setPrototypeOf({[_lastSeenSerialCount]: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.MultiEntriesBrowserHistory))));
  dart.setLibraryUri(_engine.MultiEntriesBrowserHistory, I[220]);
  dart.setFieldSignature(_engine.MultiEntriesBrowserHistory, () => dart.global.Object.setPrototypeOf({
    urlStrategy: {type: T$11.UrlStrategyN(), isConst: false, isFinal: true, libraryUri: I[217]},
    [__MultiEntriesBrowserHistory__lastSeenSerialCount]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__MultiEntriesBrowserHistory__lastSeenSerialCount_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MultiEntriesBrowserHistory))));
  var urlStrategy$0 = dart.privateName(_engine, "SingleEntryBrowserHistory.urlStrategy");
  var _flutterState = dart.privateName(_engine, "_flutterState");
  var _userProvidedRouteName = dart.privateName(_engine, "_userProvidedRouteName");
  var _setupOriginEntry = dart.privateName(_engine, "_setupOriginEntry");
  var _setupFlutterEntry = dart.privateName(_engine, "_setupFlutterEntry");
  var _wrapOriginState = dart.privateName(_engine, "_wrapOriginState");
  var _unwrapOriginState = dart.privateName(_engine, "_unwrapOriginState");
  var MethodCall_arguments = dart.privateName(_engine, "MethodCall.arguments");
  var MethodCall_method = dart.privateName(_engine, "MethodCall.method");
  _engine.SingleEntryBrowserHistory = class SingleEntryBrowserHistory extends _engine.BrowserHistory {
    get urlStrategy() {
      return this[urlStrategy$0];
    }
    set urlStrategy(value) {
      super.urlStrategy = value;
    }
    static ['_#new#tearOff'](opts) {
      let urlStrategy = opts && 'urlStrategy' in opts ? opts.urlStrategy : null;
      return new _engine.SingleEntryBrowserHistory.new({urlStrategy: urlStrategy});
    }
    [_wrapOriginState](state) {
      return new (G.IdentityMapOfString$dynamic()).from(["origin", true, "state", state]);
    }
    [_unwrapOriginState](state) {
      if (!dart.test(_engine.SingleEntryBrowserHistory._isOriginEntry(state))) dart.assertFailed(null, I[322], 285, 12, "_isOriginEntry(state)");
      let originState = T$.Map()[_as](dart.nullCheck(state));
      return originState[$_get]("state");
    }
    static _isOriginEntry(state) {
      return T$.Map()[_is](state) && dart.equals(state[$_get]("origin"), true);
    }
    static _isFlutterEntry(state) {
      return T$.Map()[_is](state) && dart.equals(state[$_get]("flutter"), true);
    }
    setRouteName(routeName, opts) {
      let state = opts && 'state' in opts ? opts.state : null;
      let replace = opts && 'replace' in opts ? opts.replace : false;
      if (replace == null) dart.nullFailed(I[322], 306, 61, "replace");
      if (this.urlStrategy != null) {
        this[_setupFlutterEntry](dart.nullCheck(this.urlStrategy), {replace: true, path: routeName});
      }
    }
    onPopState(state) {
      if (dart.test(_engine.SingleEntryBrowserHistory._isOriginEntry(state))) {
        this[_setupFlutterEntry](dart.nullCheck(this.urlStrategy));
        _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/navigation", (C[847] || CT.C847).encodeMethodCall(_engine.SingleEntryBrowserHistory._popRouteMethodCall), dart.fn(_ => {
        }, T$8.ByteDataNTovoid()));
      } else if (dart.test(_engine.SingleEntryBrowserHistory._isFlutterEntry(state))) {
        if (!(this[_userProvidedRouteName] != null)) dart.assertFailed(null, I[322], 330, 14, "_userProvidedRouteName != null");
        let newRouteName = dart.nullCheck(this[_userProvidedRouteName]);
        this[_userProvidedRouteName] = null;
        _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/navigation", (C[847] || CT.C847).encodeMethodCall(new _engine.MethodCall.new("pushRoute", newRouteName)), dart.fn(_ => {
        }, T$8.ByteDataNTovoid()));
      } else {
        this[_userProvidedRouteName] = this.currentPath;
        dart.nullCheck(this.urlStrategy).go(-1);
      }
    }
    [_setupOriginEntry](strategy) {
      if (strategy == null) dart.nullFailed(I[322], 361, 45, "strategy");
      strategy.replaceState(this[_wrapOriginState](this.currentState), "origin", "");
    }
    [_setupFlutterEntry](strategy, opts) {
      if (strategy == null) dart.nullFailed(I[322], 368, 24, "strategy");
      let replace = opts && 'replace' in opts ? opts.replace : false;
      if (replace == null) dart.nullFailed(I[322], 369, 10, "replace");
      let path = opts && 'path' in opts ? opts.path : null;
      path == null ? path = this.currentPath : null;
      if (dart.test(replace)) {
        strategy.replaceState(this[_flutterState], "flutter", path);
      } else {
        strategy.pushState(this[_flutterState], "flutter", path);
      }
    }
    tearDown() {
      return async.async(T$.void(), (function* tearDown() {
        this.dispose();
        if (dart.test(this[_isTornDown]) || this.urlStrategy == null) {
          return;
        }
        this[_isTornDown] = true;
        yield dart.nullCheck(this.urlStrategy).go(-1);
        dart.nullCheck(this.urlStrategy).replaceState(this[_unwrapOriginState](this.currentState), "flutter", this.currentPath);
      }).bind(this));
    }
  };
  (_engine.SingleEntryBrowserHistory.new = function(opts) {
    let urlStrategy = opts && 'urlStrategy' in opts ? opts.urlStrategy : null;
    this[_flutterState] = new (G$.IdentityMapOfString$bool()).from(["flutter", true]);
    this[_userProvidedRouteName] = null;
    this[urlStrategy$0] = urlStrategy;
    dart.global.Object.getPrototypeOf(_engine.SingleEntryBrowserHistory).new.call(this);
    let strategy = this.urlStrategy;
    if (strategy == null) {
      return;
    }
    this[_setupStrategy](strategy);
    let path = this.currentPath;
    if (!dart.test(_engine.SingleEntryBrowserHistory._isFlutterEntry(_engine['DomHistoryExtension|get#state'](js_util.getProperty(T$9.DomHistory(), dart.jsInteropNullCheck(dart.global.window), "history"))))) {
      this[_setupOriginEntry](strategy);
      this[_setupFlutterEntry](strategy, {path: path});
    }
  }).prototype = _engine.SingleEntryBrowserHistory.prototype;
  dart.addRtiResources(_engine.SingleEntryBrowserHistory, ["_engine|SingleEntryBrowserHistory"]);
  dart.setMethodSignature(_engine.SingleEntryBrowserHistory, () => dart.global.Object.setPrototypeOf({
    [_wrapOriginState]: T$11.ObjectNToMapOfString$dynamic(),
    [_unwrapOriginState]: T$.ObjectNToObjectN(),
    setRouteName: T$11.StringN__Tovoid$1(),
    onPopState: T$.ObjectNTovoid(),
    [_setupOriginEntry]: T$11.UrlStrategyTovoid(),
    [_setupFlutterEntry]: T$11.UrlStrategy__Tovoid(),
    tearDown: T$.VoidToFutureOfvoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SingleEntryBrowserHistory))));
  dart.setStaticMethodSignature(_engine.SingleEntryBrowserHistory, () => ['_isOriginEntry', '_isFlutterEntry']);
  dart.setLibraryUri(_engine.SingleEntryBrowserHistory, I[220]);
  dart.setFieldSignature(_engine.SingleEntryBrowserHistory, () => dart.global.Object.setPrototypeOf({
    urlStrategy: {type: T$11.UrlStrategyN(), isConst: false, isFinal: true, libraryUri: I[217]},
    [_flutterState]: {type: T.MapOfString$bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_userProvidedRouteName]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SingleEntryBrowserHistory))));
  dart.setStaticFieldSignature(_engine.SingleEntryBrowserHistory, () => ['_popRouteMethodCall', '_kFlutterTag', '_kOriginTag']);
  dart.defineLazy(_engine.SingleEntryBrowserHistory, {
    /*_engine.SingleEntryBrowserHistory._popRouteMethodCall*/get _popRouteMethodCall() {
      return C[906] || CT.C906;
    },
    /*_engine.SingleEntryBrowserHistory._kFlutterTag*/get _kFlutterTag() {
      return "flutter";
    },
    /*_engine.SingleEntryBrowserHistory._kOriginTag*/get _kOriginTag() {
      return "origin";
    }
  }, false);
  var name$24 = dart.privateName(_engine, "NotoFont.name");
  var url$5 = dart.privateName(_engine, "NotoFont.url");
  var enabled$ = dart.privateName(_engine, "NotoFont.enabled");
  var index = dart.privateName(_engine, "NotoFont.index");
  var coverCount = dart.privateName(_engine, "NotoFont.coverCount");
  var coverComponents = dart.privateName(_engine, "NotoFont.coverComponents");
  _engine.NotoFont = class NotoFont extends core.Object {
    get name() {
      return this[name$24];
    }
    set name(value) {
      super.name = value;
    }
    get url() {
      return this[url$5];
    }
    set url(value) {
      super.url = value;
    }
    get enabled() {
      return this[enabled$];
    }
    set enabled(value) {
      super.enabled = value;
    }
    get index() {
      return this[index];
    }
    set index(value) {
      super.index = value;
    }
    get coverCount() {
      return this[coverCount];
    }
    set coverCount(value) {
      if (value == null) dart.nullFailed(I[323], 23, 7, "coverCount");
      this[coverCount] = value;
    }
    get coverComponents() {
      return this[coverComponents];
    }
    set coverComponents(value) {
      super.coverComponents = value;
    }
    static ['_#new#tearOff'](name, url, opts) {
      if (name == null) dart.nullFailed(I[323], 7, 17, "name");
      if (url == null) dart.nullFailed(I[323], 7, 28, "url");
      let enabled = opts && 'enabled' in opts ? opts.enabled : true;
      if (enabled == null) dart.nullFailed(I[323], 7, 39, "enabled");
      return new _engine.NotoFont.new(name, url, {enabled: enabled});
    }
  };
  (_engine.NotoFont.new = function(name, url, opts) {
    let t$36570;
    if (name == null) dart.nullFailed(I[323], 7, 17, "name");
    if (url == null) dart.nullFailed(I[323], 7, 28, "url");
    let enabled = opts && 'enabled' in opts ? opts.enabled : true;
    if (enabled == null) dart.nullFailed(I[323], 7, 39, "enabled");
    this[index] = (t$36570 = _engine.NotoFont._index, _engine.NotoFont._index = dart.notNull(t$36570) + 1, t$36570);
    this[coverCount] = 0;
    this[coverComponents] = G$.JSArrayOfFallbackFontComponent().of([]);
    this[name$24] = name;
    this[url$5] = url;
    this[enabled$] = enabled;
    ;
  }).prototype = _engine.NotoFont.prototype;
  dart.addRtiResources(_engine.NotoFont, ["_engine|NotoFont"]);
  dart.setLibraryUri(_engine.NotoFont, I[220]);
  dart.setFieldSignature(_engine.NotoFont, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    url: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    enabled: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    index: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    coverCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    coverComponents: {type: T$10.ListOfFallbackFontComponent(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.NotoFont))));
  dart.setStaticFieldSignature(_engine.NotoFont, () => ['_index']);
  dart.defineLazy(_engine.NotoFont, {
    /*_engine.NotoFont._index*/get _index() {
      return 0;
    },
    set _index(value) {
      if (value == null) dart.nullFailed(I[323], 19, 14, "_index");
    }
  }, false);
  var coverCount$ = dart.privateName(_engine, "FallbackFontComponent.coverCount");
  var __FallbackFontComponent__activeFonts = dart.privateName(_engine, "_#FallbackFontComponent#_activeFonts");
  var __FallbackFontComponent__activeFonts_isSet = dart.privateName(_engine, "_#FallbackFontComponent#_activeFonts#isSet");
  var _allFonts$ = dart.privateName(_engine, "_allFonts");
  var _activeFonts = dart.privateName(_engine, "_activeFonts");
  _engine.FallbackFontComponent = class FallbackFontComponent extends core.Object {
    get coverCount() {
      return this[coverCount$];
    }
    set coverCount(value) {
      if (value == null) dart.nullFailed(I[323], 48, 7, "coverCount");
      this[coverCount$] = value;
    }
    static ['_#new#tearOff'](_allFonts) {
      if (_allFonts == null) dart.nullFailed(I[323], 39, 30, "_allFonts");
      return new _engine.FallbackFontComponent.new(_allFonts);
    }
    get [_activeFonts]() {
      let t$36571;
      if (!dart.test(this[__FallbackFontComponent__activeFonts_isSet])) {
        let t$36570 = G$.ListOfNotoFont().unmodifiable(this[_allFonts$][$where](dart.fn(font => {
          if (font == null) dart.nullFailed(I[323], 42, 33, "font");
          return font.enabled;
        }, T$10.NotoFontTobool())));
        if (dart.test(this[__FallbackFontComponent__activeFonts_isSet])) dart.throw(new _internal.LateError.fieldADI("_activeFonts"));
        this[__FallbackFontComponent__activeFonts] = t$36570;
        this[__FallbackFontComponent__activeFonts_isSet] = true;
      }
      t$36571 = this[__FallbackFontComponent__activeFonts];
      return t$36571;
    }
    get fonts() {
      return this[_activeFonts];
    }
  };
  (_engine.FallbackFontComponent.new = function(_allFonts) {
    if (_allFonts == null) dart.nullFailed(I[323], 39, 30, "_allFonts");
    this[__FallbackFontComponent__activeFonts] = null;
    this[__FallbackFontComponent__activeFonts_isSet] = false;
    this[coverCount$] = 0;
    this[_allFonts$] = _allFonts;
    ;
  }).prototype = _engine.FallbackFontComponent.prototype;
  dart.addRtiResources(_engine.FallbackFontComponent, ["_engine|FallbackFontComponent"]);
  dart.setGetterSignature(_engine.FallbackFontComponent, () => dart.global.Object.setPrototypeOf({
    [_activeFonts]: T$10.ListOfNotoFont(),
    fonts: T$10.ListOfNotoFont()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FallbackFontComponent))));
  dart.setLibraryUri(_engine.FallbackFontComponent, I[220]);
  dart.setFieldSignature(_engine.FallbackFontComponent, () => dart.global.Object.setPrototypeOf({
    [_allFonts$]: {type: T$10.ListOfNotoFont(), isConst: false, isFinal: true, libraryUri: I[11]},
    [__FallbackFontComponent__activeFonts]: {type: T$11.ListNOfNotoFont(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__FallbackFontComponent__activeFonts_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    coverCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FallbackFontComponent))));
  _engine._LogMessage = class _LogMessage extends core.Object {
    static ['_#new#tearOff'](message) {
      if (message == null) dart.nullFailed(I[324], 12, 20, "message");
      return new _engine._LogMessage.new(message);
    }
    toString() {
      if (this.duplicateCount === 1) {
        return this.message;
      }
      return dart.str(this.duplicateCount) + "x " + dart.str(this.message);
    }
  };
  (_engine._LogMessage.new = function(message) {
    if (message == null) dart.nullFailed(I[324], 12, 20, "message");
    this.duplicateCount = 1;
    this.message = message;
    ;
  }).prototype = _engine._LogMessage.prototype;
  dart.addRtiResources(_engine._LogMessage, ["_engine|_LogMessage"]);
  dart.setLibraryUri(_engine._LogMessage, I[220]);
  dart.setFieldSignature(_engine._LogMessage, () => dart.global.Object.setPrototypeOf({
    duplicateCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._LogMessage))));
  dart.defineExtensionMethods(_engine._LogMessage, ['toString']);
  var _highContrastMediaQuery = dart.privateName(_engine, "_highContrastMediaQuery");
  var __HighContrastSupport__onHighContrastChangeListener = dart.privateName(_engine, "_#HighContrastSupport#_onHighContrastChangeListener");
  var __HighContrastSupport__onHighContrastChangeListener_isSet = dart.privateName(_engine, "_#HighContrastSupport#_onHighContrastChangeListener#isSet");
  var _onHighContrastChange = dart.privateName(_engine, "_onHighContrastChange");
  var _onHighContrastChangeListener = dart.privateName(_engine, "_onHighContrastChangeListener");
  _engine.HighContrastSupport = class HighContrastSupport extends core.Object {
    get [_onHighContrastChangeListener]() {
      let t$36572;
      if (!dart.test(this[__HighContrastSupport__onHighContrastChangeListener_isSet])) {
        let t$36571 = _engine.createDomEventListener(dart.bind(this, _onHighContrastChange));
        if (dart.test(this[__HighContrastSupport__onHighContrastChangeListener_isSet])) dart.throw(new _internal.LateError.fieldADI("_onHighContrastChangeListener"));
        this[__HighContrastSupport__onHighContrastChangeListener] = t$36571;
        this[__HighContrastSupport__onHighContrastChangeListener_isSet] = true;
      }
      t$36572 = this[__HighContrastSupport__onHighContrastChangeListener];
      return t$36572;
    }
    get isHighContrastEnabled() {
      return _engine['DomMediaQueryListExtension|get#matches'](this[_highContrastMediaQuery]);
    }
    addListener(listener) {
      if (listener == null) dart.nullFailed(I[325], 38, 41, "listener");
      if (dart.test(this[_listeners][$isEmpty])) {
        this[_highContrastMediaQuery].addListener(this[_onHighContrastChangeListener]);
      }
      this[_listeners][$add](listener);
    }
    removeListener(listener) {
      if (listener == null) dart.nullFailed(I[325], 46, 44, "listener");
      this[_listeners][$remove](listener);
      if (dart.test(this[_listeners][$isEmpty])) {
        this[_highContrastMediaQuery].removeListener(this[_onHighContrastChangeListener]);
      }
    }
    [_onHighContrastChange](event) {
      if (event == null) dart.nullFailed(I[325], 53, 41, "event");
      let mqEvent = T$11.DomMediaQueryListEvent()[_as](event);
      let isHighContrastEnabled = dart.nullCheck(_engine['DomMediaQueryListEventExtension|get#matches'](mqEvent));
      for (let listener of this[_listeners]) {
        listener(isHighContrastEnabled);
      }
    }
    static ['_#new#tearOff']() {
      return new _engine.HighContrastSupport.new();
    }
  };
  (_engine.HighContrastSupport.new = function() {
    this[_listeners] = G$.JSArrayOfboolTovoid().of([]);
    this[_highContrastMediaQuery] = _engine['DomWindowExtension|matchMedia'](dart.jsInteropNullCheck(dart.global.window), "(forced-colors: active)");
    this[__HighContrastSupport__onHighContrastChangeListener] = null;
    this[__HighContrastSupport__onHighContrastChangeListener_isSet] = false;
    ;
  }).prototype = _engine.HighContrastSupport.prototype;
  dart.addRtiResources(_engine.HighContrastSupport, ["_engine|HighContrastSupport"]);
  dart.setMethodSignature(_engine.HighContrastSupport, () => dart.global.Object.setPrototypeOf({
    addListener: T$11.FnTovoid$42(),
    removeListener: T$11.FnTovoid$42(),
    [_onHighContrastChange]: T$10.DomEventTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HighContrastSupport))));
  dart.setGetterSignature(_engine.HighContrastSupport, () => dart.global.Object.setPrototypeOf({
    [_onHighContrastChangeListener]: T$9.DomEventListener(),
    isHighContrastEnabled: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.HighContrastSupport))));
  dart.setLibraryUri(_engine.HighContrastSupport, I[220]);
  dart.setFieldSignature(_engine.HighContrastSupport, () => dart.global.Object.setPrototypeOf({
    [_listeners]: {type: T$11.ListOfboolTovoid(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_highContrastMediaQuery]: {type: T$11.DomMediaQueryList(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__HighContrastSupport__onHighContrastChangeListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__HighContrastSupport__onHighContrastChangeListener_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HighContrastSupport))));
  dart.setStaticFieldSignature(_engine.HighContrastSupport, () => ['instance', '_highContrastMediaQueryString']);
  dart.defineLazy(_engine.HighContrastSupport, {
    /*_engine.HighContrastSupport.instance*/get instance() {
      return new _engine.HighContrastSupport.new();
    },
    set instance(value) {
      if (value == null) dart.nullFailed(I[325], 24, 30, "instance");
    },
    /*_engine.HighContrastSupport._highContrastMediaQueryString*/get _highContrastMediaQueryString() {
      return "(forced-colors: active)";
    }
  }, false);
  var accessibilityPlaceholder = dart.privateName(_engine, "EnginePlatformDispatcher.accessibilityPlaceholder");
  var configuration = dart.privateName(_engine, "EnginePlatformDispatcher.configuration");
  var displays = dart.privateName(_engine, "EnginePlatformDispatcher.displays");
  var __EnginePlatformDispatcher__onViewDisposedListener = dart.privateName(_engine, "_#EnginePlatformDispatcher#_onViewDisposedListener");
  var __EnginePlatformDispatcher__onViewDisposedListener_isSet = dart.privateName(_engine, "_#EnginePlatformDispatcher#_onViewDisposedListener#isSet");
  var _onPlatformConfigurationChanged = dart.privateName(_engine, "_onPlatformConfigurationChanged");
  var _onPlatformConfigurationChangedZone = dart.privateName(_engine, "_onPlatformConfigurationChangedZone");
  var __EnginePlatformDispatcher_viewManager = dart.privateName(_engine, "_#EnginePlatformDispatcher#viewManager");
  var __EnginePlatformDispatcher_viewManager_isSet = dart.privateName(_engine, "_#EnginePlatformDispatcher#viewManager#isSet");
  var __EnginePlatformDispatcher__appLifecycleState = dart.privateName(_engine, "_#EnginePlatformDispatcher#_appLifecycleState");
  var __EnginePlatformDispatcher__appLifecycleState_isSet = dart.privateName(_engine, "_#EnginePlatformDispatcher#_appLifecycleState#isSet");
  var _onMetricsChanged = dart.privateName(_engine, "_onMetricsChanged");
  var _onMetricsChangedZone = dart.privateName(_engine, "_onMetricsChangedZone");
  var __EnginePlatformDispatcher__viewFocusBinding = dart.privateName(_engine, "_#EnginePlatformDispatcher#_viewFocusBinding");
  var __EnginePlatformDispatcher__viewFocusBinding_isSet = dart.privateName(_engine, "_#EnginePlatformDispatcher#_viewFocusBinding#isSet");
  var _onViewFocusChange$ = dart.privateName(_engine, "_onViewFocusChange");
  var _onViewFocusChangeZone = dart.privateName(_engine, "_onViewFocusChangeZone");
  var _viewsRenderedInCurrentFrame = dart.privateName(_engine, "_viewsRenderedInCurrentFrame");
  var _onBeginFrame = dart.privateName(_engine, "_onBeginFrame");
  var _onBeginFrameZone = dart.privateName(_engine, "_onBeginFrameZone");
  var _onDrawFrame = dart.privateName(_engine, "_onDrawFrame");
  var _onDrawFrameZone = dart.privateName(_engine, "_onDrawFrameZone");
  var _onPointerDataPacket = dart.privateName(_engine, "_onPointerDataPacket");
  var _onPointerDataPacketZone = dart.privateName(_engine, "_onPointerDataPacketZone");
  var _onKeyDataZone = dart.privateName(_engine, "_onKeyDataZone");
  var _onReportTimings = dart.privateName(_engine, "_onReportTimings");
  var _onReportTimingsZone = dart.privateName(_engine, "_onReportTimingsZone");
  var _onPlatformMessage = dart.privateName(_engine, "_onPlatformMessage");
  var _onPlatformMessageZone = dart.privateName(_engine, "_onPlatformMessageZone");
  var _onAccessibilityFeaturesChanged = dart.privateName(_engine, "_onAccessibilityFeaturesChanged");
  var _onAccessibilityFeaturesChangedZone = dart.privateName(_engine, "_onAccessibilityFeaturesChangedZone");
  var _onLocaleChangedSubscription = dart.privateName(_engine, "_onLocaleChangedSubscription");
  var _onLocaleChanged = dart.privateName(_engine, "_onLocaleChanged");
  var _onLocaleChangedZone = dart.privateName(_engine, "_onLocaleChangedZone");
  var _fontSizeObserver = dart.privateName(_engine, "_fontSizeObserver");
  var _onTextScaleFactorChanged = dart.privateName(_engine, "_onTextScaleFactorChanged");
  var _onTextScaleFactorChangedZone = dart.privateName(_engine, "_onTextScaleFactorChangedZone");
  var _brightnessMediaQuery = dart.privateName(_engine, "_brightnessMediaQuery");
  var _brightnessMediaQueryListener = dart.privateName(_engine, "_brightnessMediaQueryListener");
  var _onPlatformBrightnessChanged = dart.privateName(_engine, "_onPlatformBrightnessChanged");
  var _onPlatformBrightnessChangedZone = dart.privateName(_engine, "_onPlatformBrightnessChangedZone");
  var _onSystemFontFamilyChanged = dart.privateName(_engine, "_onSystemFontFamilyChanged");
  var _onSystemFontFamilyChangedZone = dart.privateName(_engine, "_onSystemFontFamilyChangedZone");
  var _onSemanticsEnabledChanged = dart.privateName(_engine, "_onSemanticsEnabledChanged");
  var _onSemanticsEnabledChangedZone = dart.privateName(_engine, "_onSemanticsEnabledChangedZone");
  var _onSemanticsActionEvent = dart.privateName(_engine, "_onSemanticsActionEvent");
  var _onSemanticsActionEventZone = dart.privateName(_engine, "_onSemanticsActionEventZone");
  var _onError = dart.privateName(_engine, "_onError");
  var __EnginePlatformDispatcher__onErrorZone = dart.privateName(_engine, "_#EnginePlatformDispatcher#_onErrorZone");
  var __EnginePlatformDispatcher__onErrorZone_isSet = dart.privateName(_engine, "_#EnginePlatformDispatcher#_onErrorZone#isSet");
  var _defaultRouteName = dart.privateName(_engine, "_defaultRouteName");
  var _addBrightnessMediaQueryListener = dart.privateName(_engine, "_addBrightnessMediaQueryListener");
  var _updateHighContrast = dart.privateName(_engine, "_updateHighContrast");
  var _addFontSizeObserver = dart.privateName(_engine, "_addFontSizeObserver");
  var _addLocaleChangedListener = dart.privateName(_engine, "_addLocaleChangedListener");
  var _appLifecycleState = dart.privateName(_engine, "_appLifecycleState");
  var _setAppLifecycleState = dart.privateName(_engine, "_setAppLifecycleState");
  var _viewFocusBinding = dart.privateName(_engine, "_viewFocusBinding");
  var _removeBrightnessMediaQueryListener = dart.privateName(_engine, "_removeBrightnessMediaQueryListener");
  var _disconnectFontSizeObserver = dart.privateName(_engine, "_disconnectFontSizeObserver");
  var _removeLocaleChangedListener = dart.privateName(_engine, "_removeLocaleChangedListener");
  var _sendPlatformMessage = dart.privateName(_engine, "_sendPlatformMessage");
  var _handleFlutterAssetsMessage = dart.privateName(_engine, "_handleFlutterAssetsMessage");
  var _getHapticFeedbackDuration = dart.privateName(_engine, "_getHapticFeedbackDuration");
  var _updateTextScaleFactor = dart.privateName(_engine, "_updateTextScaleFactor");
  var _updatePlatformBrightness = dart.privateName(_engine, "_updatePlatformBrightness");
  var _onErrorZone = dart.privateName(_engine, "_onErrorZone");
  _engine.EnginePlatformDispatcher = class EnginePlatformDispatcher extends ui.PlatformDispatcher {
    get accessibilityPlaceholder() {
      return this[accessibilityPlaceholder];
    }
    set accessibilityPlaceholder(value) {
      super.accessibilityPlaceholder = value;
    }
    get configuration() {
      return this[configuration];
    }
    set configuration(value) {
      if (value == null) dart.nullFailed(I[325], 98, 25, "configuration");
      this[configuration] = value;
    }
    get displays() {
      return this[displays];
    }
    set displays(value) {
      if (value == null) dart.nullFailed(I[325], 146, 34, "displays");
      this[displays] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.EnginePlatformDispatcher.new();
    }
    set [_onViewDisposedListener](_onViewDisposedListener$35param) {
      if (_onViewDisposedListener$35param == null) dart.nullFailed(I[325], 86, 32, "_onViewDisposedListener#param");
      this[__EnginePlatformDispatcher__onViewDisposedListener_isSet] = true;
      this[__EnginePlatformDispatcher__onViewDisposedListener] = _onViewDisposedListener$35param;
    }
    get [_onViewDisposedListener]() {
      let t$36572;
      return dart.test(this[__EnginePlatformDispatcher__onViewDisposedListener_isSet]) ? (t$36572 = this[__EnginePlatformDispatcher__onViewDisposedListener], t$36572) : dart.throw(new _internal.LateError.fieldNI("_onViewDisposedListener"));
    }
    static get instance() {
      return _engine.EnginePlatformDispatcher._instance;
    }
    static computeAccessibilityFeatures() {
      let builder = new _engine.EngineAccessibilityFeaturesBuilder.new(0);
      if (dart.test(_engine.HighContrastSupport.instance.isHighContrastEnabled)) {
        builder.highContrast = true;
      }
      return builder.build();
    }
    dispose() {
      this[_removeBrightnessMediaQueryListener]();
      this[_disconnectFontSizeObserver]();
      this[_removeLocaleChangedListener]();
      _engine.HighContrastSupport.instance.removeListener(dart.bind(this, _updateHighContrast));
      this[_appLifecycleState].removeListener(dart.bind(this, _setAppLifecycleState));
      this[_viewFocusBinding].dispose();
      this.accessibilityPlaceholder.remove();
      this[_onViewDisposedListener].cancel();
      this.viewManager.dispose();
    }
    get onPlatformConfigurationChanged() {
      return this[_onPlatformConfigurationChanged];
    }
    set onPlatformConfigurationChanged(callback) {
      this[_onPlatformConfigurationChanged] = callback;
      this[_onPlatformConfigurationChangedZone] = async.Zone.current;
    }
    invokeOnPlatformConfigurationChanged() {
      _engine.invoke(this[_onPlatformConfigurationChanged], this[_onPlatformConfigurationChangedZone]);
    }
    get viewManager() {
      let t$36573;
      if (!dart.test(this[__EnginePlatformDispatcher_viewManager_isSet])) {
        let t$36572 = new _engine.FlutterViewManager.new(this);
        if (dart.test(this[__EnginePlatformDispatcher_viewManager_isSet])) dart.throw(new _internal.LateError.fieldADI("viewManager"));
        this[__EnginePlatformDispatcher_viewManager] = t$36572;
        this[__EnginePlatformDispatcher_viewManager_isSet] = true;
      }
      t$36573 = this[__EnginePlatformDispatcher_viewManager];
      return t$36573;
    }
    get [_appLifecycleState]() {
      let t$36574;
      if (!dart.test(this[__EnginePlatformDispatcher__appLifecycleState_isSet])) {
        let t$36573 = _engine.AppLifecycleState.create(this.viewManager);
        if (dart.test(this[__EnginePlatformDispatcher__appLifecycleState_isSet])) dart.throw(new _internal.LateError.fieldADI("_appLifecycleState"));
        this[__EnginePlatformDispatcher__appLifecycleState] = t$36573;
        this[__EnginePlatformDispatcher__appLifecycleState_isSet] = true;
      }
      t$36574 = this[__EnginePlatformDispatcher__appLifecycleState];
      return t$36574;
    }
    get views() {
      return this.viewManager.views;
    }
    view(opts) {
      let id = opts && 'id' in opts ? opts.id : null;
      if (id == null) dart.nullFailed(I[325], 162, 41, "id");
      return this.viewManager._get(id);
    }
    get implicitView() {
      return T$11.EngineFlutterWindowN()[_as](this.viewManager._get(0));
    }
    get onMetricsChanged() {
      return this[_onMetricsChanged];
    }
    set onMetricsChanged(callback) {
      this[_onMetricsChanged] = callback;
      this[_onMetricsChangedZone] = async.Zone.current;
    }
    invokeOnMetricsChanged() {
      if (this[_onMetricsChanged] != null) {
        _engine.invoke(this[_onMetricsChanged], this[_onMetricsChangedZone]);
      }
    }
    get [_viewFocusBinding]() {
      let t$36575;
      if (!dart.test(this[__EnginePlatformDispatcher__viewFocusBinding_isSet])) {
        let t$36574 = new _engine.ViewFocusBinding.new(this.viewManager, dart.bind(this, 'invokeOnViewFocusChange'));
        if (dart.test(this[__EnginePlatformDispatcher__viewFocusBinding_isSet])) dart.throw(new _internal.LateError.fieldADI("_viewFocusBinding"));
        this[__EnginePlatformDispatcher__viewFocusBinding] = t$36574;
        this[__EnginePlatformDispatcher__viewFocusBinding_isSet] = true;
      }
      t$36575 = this[__EnginePlatformDispatcher__viewFocusBinding];
      return t$36575;
    }
    get onViewFocusChange() {
      return this[_onViewFocusChange$];
    }
    set onViewFocusChange(callback) {
      this[_onViewFocusChange$] = callback;
      this[_onViewFocusChangeZone] = async.Zone.current;
    }
    invokeOnViewFocusChange(viewFocusEvent) {
      if (viewFocusEvent == null) dart.nullFailed(I[325], 243, 50, "viewFocusEvent");
      _engine.invoke1(T$11.ViewFocusEvent(), this[_onViewFocusChange$], this[_onViewFocusChangeZone], viewFocusEvent);
    }
    requestViewFocusChange(opts) {
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      if (viewId == null) dart.nullFailed(I[325], 253, 18, "viewId");
      let state = opts && 'state' in opts ? opts.state : null;
      if (state == null) dart.nullFailed(I[325], 254, 32, "state");
      let direction = opts && 'direction' in opts ? opts.direction : null;
      if (direction == null) dart.nullFailed(I[325], 255, 36, "direction");
      this[_viewFocusBinding].changeViewFocus(viewId, state);
    }
    get onBeginFrame() {
      return this[_onBeginFrame];
    }
    set onBeginFrame(callback) {
      this[_onBeginFrame] = callback;
      this[_onBeginFrameZone] = async.Zone.current;
    }
    invokeOnBeginFrame(duration) {
      if (duration == null) dart.nullFailed(I[325], 285, 36, "duration");
      this[_viewsRenderedInCurrentFrame] = G$.LinkedHashSetOfFlutterView().new();
      _engine.invoke1(T$8.Duration(), this[_onBeginFrame], this[_onBeginFrameZone], duration);
      this[_viewsRenderedInCurrentFrame] = null;
    }
    get onDrawFrame() {
      return this[_onDrawFrame];
    }
    set onDrawFrame(callback) {
      this[_onDrawFrame] = callback;
      this[_onDrawFrameZone] = async.Zone.current;
    }
    invokeOnDrawFrame() {
      this[_viewsRenderedInCurrentFrame] = G$.LinkedHashSetOfFlutterView().new();
      _engine.invoke(this[_onDrawFrame], this[_onDrawFrameZone]);
      this[_viewsRenderedInCurrentFrame] = null;
    }
    get onPointerDataPacket() {
      return this[_onPointerDataPacket];
    }
    set onPointerDataPacket(callback) {
      this[_onPointerDataPacket] = callback;
      this[_onPointerDataPacketZone] = async.Zone.current;
    }
    invokeOnPointerDataPacket(dataPacket) {
      if (dataPacket == null) dart.nullFailed(I[325], 335, 55, "dataPacket");
      _engine.invoke1(T$11.PointerDataPacket(), this[_onPointerDataPacket], this[_onPointerDataPacketZone], dataPacket);
    }
    get onKeyData() {
      return this[_onKeyData];
    }
    set onKeyData(callback) {
      this[_onKeyData] = callback;
      this[_onKeyDataZone] = async.Zone.current;
    }
    invokeOnKeyData(data, callback) {
      if (data == null) dart.nullFailed(I[325], 361, 35, "data");
      if (callback == null) dart.nullFailed(I[325], 361, 66, "callback");
      let onKeyData = this[_onKeyData];
      if (onKeyData != null) {
        _engine.invoke(dart.fn(() => callback(onKeyData(data)), T$.VoidTovoid()), this[_onKeyDataZone]);
      } else {
        callback(false);
      }
    }
    get onReportTimings() {
      return this[_onReportTimings];
    }
    set onReportTimings(callback) {
      this[_onReportTimings] = callback;
      this[_onReportTimingsZone] = async.Zone.current;
    }
    invokeOnReportTimings(timings) {
      if (timings == null) dart.nullFailed(I[325], 406, 51, "timings");
      _engine.invoke1(T$10.ListOfFrameTiming(), this[_onReportTimings], this[_onReportTimingsZone], timings);
    }
    sendPlatformMessage(name, data, callback) {
      if (name == null) dart.nullFailed(I[325], 413, 12, "name");
      this[_sendPlatformMessage](name, data, _engine.EnginePlatformDispatcher._zonedPlatformMessageResponseCallback(callback));
    }
    sendPortPlatformMessage(name, data, identifier, port) {
      if (name == null) dart.nullFailed(I[325], 423, 12, "name");
      if (identifier == null) dart.nullFailed(I[325], 425, 9, "identifier");
      if (port == null) dart.nullFailed(I[325], 426, 12, "port");
      dart.throw(core.Exception.new("Isolates aren't supported in web."));
    }
    registerBackgroundIsolate(token) {
      if (token == null) dart.nullFailed(I[325], 432, 54, "token");
      dart.throw(core.Exception.new("Isolates aren't supported in web."));
    }
    get onPlatformMessage() {
      return this[_onPlatformMessage];
    }
    set onPlatformMessage(callback) {
      this[_onPlatformMessage] = callback;
      this[_onPlatformMessageZone] = async.Zone.current;
    }
    invokeOnPlatformMessage(name, data, callback) {
      if (name == null) dart.nullFailed(I[325], 451, 12, "name");
      if (callback == null) dart.nullFailed(I[325], 453, 40, "callback");
      if (name === "dev.flutter/channel-buffers") {
        try {
          ui.channelBuffers.handleMessage(dart.nullCheck(data));
        } finally {
          callback(null);
        }
      } else if (this[_onPlatformMessage] != null) {
        _engine.invoke3(T$.String(), T$4.ByteDataN(), T$8.ByteDataNTovoid(), this[_onPlatformMessage], this[_onPlatformMessageZone], name, data, callback);
      } else {
        ui.channelBuffers.push(name, data, callback);
      }
    }
    static _zonedPlatformMessageResponseCallback(callback) {
      if (callback == null) {
        return null;
      }
      let registrationZone = async.Zone.current;
      return dart.fn(data => {
        registrationZone.runUnaryGuarded(T$4.ByteDataN(), callback, data);
      }, T$8.ByteDataNTovoid());
    }
    [_sendPlatformMessage](name, data, callback) {
      let t$36575, t$36575$, t$36575$0, t$36580;
      if (name == null) dart.nullFailed(I[325], 493, 12, "name");
      let returnImmediately = false;
      if (!dart.test(dart.fn(() => {
        if (dart.test(ui_web.debugEmulateFlutterTesterEnvironment)) {
          returnImmediately = true;
        }
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[325], 499, 12, "() {\n      if (ui_web.debugEmulateFlutterTesterEnvironment) {\n        returnImmediately = true;\n      }\n      return true;\n    }()");
      if (returnImmediately) {
        return;
      }
      ;
      let allowDebugEcho = false;
      if (!dart.test(dart.fn(() => {
        allowDebugEcho = true;
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[325], 515, 12, "() {\n      allowDebugEcho = true;\n      return true;\n    }()");
      if (allowDebugEcho && name === "flutter/debug-echo") {
        this.replyToPlatformMessage(callback, data);
        return;
      }
      switch (name) {
        case "flutter/skia":
          {
            let decoded = _engine.jsonCodec.decodeMethodCall(data);
            switch (decoded.method) {
              case "Skia.setResourceCacheMaxBytes":
                {
                  if (T$10.CanvasKitRenderer()[_is](_engine.renderer)) {
                    if (!T$.int()[_is](decoded.arguments)) dart.assertFailed("Argument to Skia.setResourceCacheMaxBytes must be an int, but was " + dart.str(dart.runtimeType(decoded.arguments)), I[325], 534, 17, "decoded.arguments is int");
                    let cacheSizeInBytes = T$.int()[_as](decoded.arguments);
                    _engine.CanvasKitRenderer.instance.resourceCacheMaxBytes = cacheSizeInBytes;
                  }
                  this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(G$.JSArrayOfbool().of([true])));
                }
            }
            return;
          }
        case "flutter/assets":
          {
            let url = convert.utf8.decode(dart.nullCheck(data)[$buffer][$asUint8List]());
            this[_handleFlutterAssetsMessage](url, callback);
            return;
          }
        case "flutter/platform":
          {
            let decoded = _engine.jsonCodec.decodeMethodCall(data);
            switch (decoded.method) {
              case "SystemNavigator.pop":
                {
                  if (this.implicitView != null) {
                    dart.nullCheck(this.implicitView).browserHistory.exit().then(T$.Null(), dart.fn(_ => {
                      this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(true));
                    }, T$.voidToNull()));
                  } else {
                    this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(true));
                  }
                  return;
                }
              case "HapticFeedback.vibrate":
                {
                  let type = T$.StringN()[_as](decoded.arguments);
                  _engine.vibrate(this[_getHapticFeedbackDuration](type));
                  this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(true));
                  return;
                }
              case "SystemChrome.setApplicationSwitcherDescription":
                {
                  let $arguments = T$10.MapOfString$ObjectN()[_as](decoded.arguments);
                  let label = (t$36575 = T$.StringN()[_as]($arguments[$_get]("label")), t$36575 == null ? "" : t$36575);
                  let primaryColor = (t$36575$ = T$.intN()[_as]($arguments[$_get]("primaryColor")), t$36575$ == null ? 4278190080 : t$36575$);
                  _engine['DomHTMLDocumentExtension|set#title'](dart.jsInteropNullCheck(dart.global.document), label);
                  _engine.setThemeColor(new ui.Color.new(primaryColor));
                  this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(true));
                  return;
                }
              case "SystemChrome.setSystemUIOverlayStyle":
                {
                  let $arguments = T$10.MapOfString$ObjectN()[_as](decoded.arguments);
                  let statusBarColor = T$.intN()[_as]($arguments[$_get]("statusBarColor"));
                  _engine.setThemeColor(statusBarColor == null ? null : new ui.Color.new(statusBarColor));
                  this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(true));
                  return;
                }
              case "SystemChrome.setPreferredOrientations":
                {
                  let $arguments = T$.List()[_as](decoded.arguments);
                  _engine.ScreenOrientation.instance.setPreferredOrientation($arguments).then(T$.Null(), dart.fn(success => {
                    if (success == null) dart.nullFailed(I[325], 609, 29, "success");
                    this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(success));
                  }, T$.boolToNull()));
                  return;
                }
              case "SystemSound.play":
                {
                  this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(true));
                  return;
                }
              case "Clipboard.setData":
                {
                  new _engine.ClipboardMessageHandler.new().setDataMethodCall(decoded, callback);
                  return;
                }
              case "Clipboard.getData":
                {
                  new _engine.ClipboardMessageHandler.new().getDataMethodCall(callback);
                  return;
                }
              case "Clipboard.hasStrings":
                {
                  new _engine.ClipboardMessageHandler.new().hasStringsMethodCall(callback);
                  return;
                }
            }
            break;
          }
        case "flutter/service_worker":
          {
            _engine['DomWindowExtension|dispatchEvent'](dart.jsInteropNullCheck(dart.global.window), _engine.createDomEvent("Event", "flutter-first-frame"));
            return;
          }
        case "flutter/textinput":
          {
            _engine.textEditing.channel.handleTextInput(data, callback);
            return;
          }
        case "flutter/contextmenu":
          {
            let decoded = _engine.jsonCodec.decodeMethodCall(data);
            switch (decoded.method) {
              case "enableContextMenu":
                {
                  dart.nullCheck(this.implicitView).contextMenu.enable();
                  this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(true));
                  return;
                }
              case "disableContextMenu":
                {
                  dart.nullCheck(this.implicitView).contextMenu.disable();
                  this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(true));
                  return;
                }
            }
            return;
          }
        case "flutter/mousecursor":
          {
            let decoded = _engine.standardCodec.decodeMethodCall(data);
            let $arguments = T$.Map()[_as](decoded.arguments);
            switch (decoded.method) {
              case "activateSystemCursor":
                {
                  t$36575$0 = collection['IterableExtensions|get#firstOrNull'](T$10.EngineFlutterView(), this.views);
                  t$36575$0 == null ? null : t$36575$0.mouseCursor.activateSystemCursor(_engine['JsonExtensions|tryString']($arguments, "kind"));
                }
            }
            return;
          }
        case "flutter/web_test_e2e":
          {
            this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(_engine._handleWebTestEnd2EndMessage(_engine.jsonCodec, data)));
            return;
          }
        case "flutter/platform_views":
          {
            let method = null;
            let $arguments = null;
            {
              let t$36$350$350 = _engine.standardCodec.decodeMethodCall(data);
              let t$36$350$351 = null;
              let t$36$350$351$35isSet = false;
              let t$36$350$352 = null;
              let t$36$350$352$35isSet = false;
              if (!(typeof (t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.method)) == 'string' && (method = t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.method), true) && T$.dynamic()[_is](t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.arguments)) && ($arguments = t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.arguments), true))) dart.throw(new core.StateError.new("Pattern matching error"));
            }
            _engine.PlatformViewMessageHandler.instance.handlePlatformViewCall(method, $arguments, dart.nullCheck(callback));
            return;
          }
        case "flutter/accessibility":
          {
            let codec = C[907] || CT.C907;
            let semantics = _engine.EngineSemantics.instance;
            if (dart.test(semantics.semanticsEnabled)) {
              semantics.accessibilityAnnouncements.handleMessage(codec, data);
            }
            this.replyToPlatformMessage(callback, codec.encodeMessage(true));
            return;
          }
        case "flutter/navigation":
          {
            if (this.implicitView != null) {
              dart.nullCheck(this.implicitView).handleNavigationMessage(data).then(T$.Null(), dart.fn(handled => {
                let t$36580;
                if (handled == null) dart.nullFailed(I[325], 703, 66, "handled");
                if (dart.test(handled)) {
                  this.replyToPlatformMessage(callback, _engine.jsonCodec.encodeSuccessEnvelope(true));
                } else {
                  t$36580 = callback;
                  t$36580 == null ? null : t$36580(null);
                }
              }, T$.boolToNull()));
            } else {
              t$36580 = callback;
              t$36580 == null ? null : t$36580(null);
            }
            this[_defaultRouteName] = "/";
            return;
          }
      }
      if (_engine.pluginMessageCallHandler != null) {
        dart.nullCheck(_engine.pluginMessageCallHandler)(name, data, callback);
        return;
      }
      this.replyToPlatformMessage(callback, null);
    }
    [_handleFlutterAssetsMessage](url, callback) {
      if (url == null) dart.nullFailed(I[325], 736, 14, "url");
      return async.async(T$.void(), (function* _handleFlutterAssetsMessage() {
        try {
          let response = T$11.HttpFetchResponse()[_as](yield ui_web.assetManager.loadAsset(url));
          let assetData = (yield _engine['HttpFetchResponseExtension|asByteBuffer'](response));
          this.replyToPlatformMessage(callback, assetData[$asByteData]());
        } catch (t$36$35e) {
          let error = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](error)) {
            _engine.printWarning("Error while trying to load an asset: " + dart.str(error));
            this.replyToPlatformMessage(callback, null);
          } else
            throw t$36$35e;
        }
      }).bind(this));
    }
    [_getHapticFeedbackDuration](type) {
      switch (type) {
        case "HapticFeedbackType.lightImpact":
          {
            return 10;
          }
        case "HapticFeedbackType.mediumImpact":
          {
            return 20;
          }
        case "HapticFeedbackType.heavyImpact":
          {
            return 30;
          }
        case "HapticFeedbackType.selectionClick":
          {
            return 10;
          }
        default:
          {
            return 50;
          }
      }
    }
    scheduleFrame() {
      if (_engine.scheduleFrameCallback == null) {
        dart.throw(core.Exception.new("scheduleFrameCallback must be initialized first."));
      }
      dart.nullCheck(_engine.scheduleFrameCallback)();
    }
    scheduleWarmUpFrame(opts) {
      let beginFrame = opts && 'beginFrame' in opts ? opts.beginFrame : null;
      if (beginFrame == null) dart.nullFailed(I[325], 785, 54, "beginFrame");
      let drawFrame = opts && 'drawFrame' in opts ? opts.drawFrame : null;
      if (drawFrame == null) dart.nullFailed(I[325], 785, 91, "drawFrame");
      async.Timer.run(beginFrame);
      async.Timer.run(drawFrame);
    }
    render(scene, view = null) {
      if (scene == null) dart.nullFailed(I[325], 821, 32, "scene");
      return async.async(T$.void(), (function* render() {
        let t$36581, t$36581$, t$36581$0;
        let target = T$11.EngineFlutterViewN()[_as]((t$36581 = view, t$36581 == null ? this.implicitView : t$36581));
        if (!(target != null)) dart.assertFailed("Calling render without a FlutterView", I[325], 823, 12, "target != null");
        if (target == null) {
          return;
        }
        let shouldRender = (t$36581$0 = (t$36581$ = this[_viewsRenderedInCurrentFrame], t$36581$ == null ? null : t$36581$.add(target)), t$36581$0 == null ? false : t$36581$0);
        if (dart.test(shouldRender) || _engine.renderer.rendererTag === "html") {
          yield _engine.renderer.renderScene(scene, target);
        }
      }).bind(this));
    }
    get accessibilityFeatures() {
      return this.configuration.accessibilityFeatures;
    }
    get onAccessibilityFeaturesChanged() {
      return this[_onAccessibilityFeaturesChanged];
    }
    set onAccessibilityFeaturesChanged(callback) {
      this[_onAccessibilityFeaturesChanged] = callback;
      this[_onAccessibilityFeaturesChangedZone] = async.Zone.current;
    }
    invokeOnAccessibilityFeaturesChanged() {
      _engine.invoke(this[_onAccessibilityFeaturesChanged], this[_onAccessibilityFeaturesChangedZone]);
    }
    updateSemantics(update) {
      let t$36581;
      if (update == null) dart.nullFailed(I[325], 886, 43, "update");
      t$36581 = this.implicitView;
      t$36581 == null ? null : t$36581.semantics.updateSemantics(update);
    }
    get locale() {
      return dart.test(this.locales[$isEmpty]) ? C[908] || CT.C908 : this.locales[$first];
    }
    get locales() {
      return this.configuration.locales;
    }
    [_addLocaleChangedListener]() {
      if (this[_onLocaleChangedSubscription] != null) {
        return;
      }
      this.updateLocales();
      this[_onLocaleChangedSubscription] = new _engine.DomSubscription.new(dart.jsInteropNullCheck(dart.global.window), "languagechange", dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[325], 933, 64, "_");
        this.updateLocales();
        this.invokeOnLocaleChanged();
      }, T$10.DomEventTovoid()));
    }
    [_removeLocaleChangedListener]() {
      let t$36581;
      t$36581 = this[_onLocaleChangedSubscription];
      t$36581 == null ? null : t$36581.cancel();
      this[_onLocaleChangedSubscription] = null;
    }
    computePlatformResolvedLocale(supportedLocales) {
      if (supportedLocales == null) dart.nullFailed(I[325], 955, 60, "supportedLocales");
      return null;
    }
    get onLocaleChanged() {
      return this[_onLocaleChanged];
    }
    set onLocaleChanged(callback) {
      this[_onLocaleChanged] = callback;
      this[_onLocaleChangedZone] = async.Zone.current;
    }
    debugResetLocales() {
      this.configuration = this.configuration.copyWith({locales: C[909] || CT.C909});
    }
    updateLocales() {
      this.configuration = this.configuration.copyWith({locales: _engine.EnginePlatformDispatcher.parseBrowserLanguages()});
    }
    static parseBrowserLanguages() {
      let languages = _engine['DomNavigatorExtension|get#languages'](js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator"));
      if (languages == null || dart.test(languages[$isEmpty])) {
        return C[910] || CT.C910;
      }
      let locales = G$.JSArrayOfLocale().of([]);
      for (let language of languages) {
        let parts = language[$split]("-");
        if (dart.notNull(parts[$length]) > 1) {
          locales[$add](new ui.Locale.new(parts[$first], parts[$last]));
        } else {
          locales[$add](new ui.Locale.new(language));
        }
      }
      if (!dart.test(locales[$isNotEmpty])) dart.assertFailed(null, I[325], 1014, 12, "locales.isNotEmpty");
      return locales;
    }
    invokeOnLocaleChanged() {
      _engine.invoke(this[_onLocaleChanged], this[_onLocaleChangedZone]);
    }
    get textScaleFactor() {
      return this.configuration.textScaleFactor;
    }
    get alwaysUse24HourFormat() {
      return this.configuration.alwaysUse24HourFormat;
    }
    [_updateTextScaleFactor](value) {
      if (value == null) dart.nullFailed(I[325], 1048, 38, "value");
      if (this.configuration.textScaleFactor != value) {
        this.configuration = this.configuration.copyWith({textScaleFactor: value});
        this.invokeOnPlatformConfigurationChanged();
        this.invokeOnTextScaleFactorChanged();
      }
    }
    [_addFontSizeObserver]() {
      this[_fontSizeObserver] = _engine.createDomMutationObserver(dart.fn((mutations, _) => {
        if (mutations == null) dart.nullFailed(I[325], 1068, 26, "mutations");
        if (_ == null) dart.nullFailed(I[325], 1068, 57, "_");
        for (let mutation of js_interop['JSArrayToList|get#toDart'](T$.ObjectN(), mutations)) {
          let record = T$11.DomMutationRecord()[_as](dart.nullCheck(mutation));
          if (_engine['DomMutationRecordExtension|get#type'](record) === "attributes" && _engine['DomMutationRecordExtension|get#attributeName'](record) === "style") {
            let newTextScaleFactor = _engine.findBrowserTextScaleFactor();
            this[_updateTextScaleFactor](newTextScaleFactor);
          }
        }
      }, T$11.JSArrayOfObjectNAndDomMutationObserverTovoid()));
      _engine['DomMutationObserverExtension|observe'](dart.nullCheck(this[_fontSizeObserver]), dart.nullCheck(js_util.getProperty(T$9.DomElementN(), dart.jsInteropNullCheck(dart.global.document), "documentElement")), {attributes: true, attributeFilter: G.JSArrayOfString().of(["style"])});
    }
    [_disconnectFontSizeObserver]() {
      let t$36581;
      t$36581 = this[_fontSizeObserver];
      t$36581 == null ? null : t$36581.disconnect();
      this[_fontSizeObserver] = null;
    }
    [_setAppLifecycleState](state) {
      if (state == null) dart.nullFailed(I[325], 1091, 51, "state");
      this.invokeOnPlatformMessage("flutter/lifecycle", (C[912] || CT.C912).encodeMessage(dart.toString(state)), dart.fn(_ => {
      }, T$8.ByteDataNTovoid()));
    }
    get onTextScaleFactorChanged() {
      return this[_onTextScaleFactorChanged];
    }
    set onTextScaleFactorChanged(callback) {
      this[_onTextScaleFactorChanged] = callback;
      this[_onTextScaleFactorChangedZone] = async.Zone.current;
    }
    invokeOnTextScaleFactorChanged() {
      _engine.invoke(this[_onTextScaleFactorChanged], this[_onTextScaleFactorChangedZone]);
    }
    updateSemanticsEnabled(semanticsEnabled) {
      if (semanticsEnabled == null) dart.nullFailed(I[325], 1124, 36, "semanticsEnabled");
      if (semanticsEnabled != this.semanticsEnabled) {
        this.configuration = this.configuration.copyWith({semanticsEnabled: semanticsEnabled});
        if (this[_onSemanticsEnabledChanged] != null) {
          this.invokeOnSemanticsEnabledChanged();
        }
      }
    }
    get platformBrightness() {
      return this.configuration.platformBrightness;
    }
    [_updatePlatformBrightness](value) {
      if (value == null) dart.nullFailed(I[325], 1141, 48, "value");
      if (this.configuration.platformBrightness != value) {
        this.configuration = this.configuration.copyWith({platformBrightness: value});
        this.invokeOnPlatformConfigurationChanged();
        this.invokeOnPlatformBrightnessChanged();
      }
    }
    get systemFontFamily() {
      return this.configuration.systemFontFamily;
    }
    [_updateHighContrast](value) {
      if (value == null) dart.nullFailed(I[325], 1155, 33, "value");
      if (this.configuration.accessibilityFeatures.highContrast != value) {
        let original = T$11.EngineAccessibilityFeatures()[_as](this.configuration.accessibilityFeatures);
        this.configuration = this.configuration.copyWith({accessibilityFeatures: original.copyWith({highContrast: value})});
        this.invokeOnPlatformConfigurationChanged();
      }
    }
    [_addBrightnessMediaQueryListener]() {
      this[_updatePlatformBrightness](dart.test(_engine['DomMediaQueryListExtension|get#matches'](this[_brightnessMediaQuery])) ? ui.Brightness.dark : ui.Brightness.light);
      this[_brightnessMediaQueryListener] = _engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[325], 1180, 70, "event");
        let mqEvent = T$11.DomMediaQueryListEvent()[_as](event);
        this[_updatePlatformBrightness](dart.nullCheck(_engine['DomMediaQueryListEventExtension|get#matches'](mqEvent)) ? ui.Brightness.dark : ui.Brightness.light);
      }, T$10.DomEventTovoid()));
      this[_brightnessMediaQuery].addListener(this[_brightnessMediaQueryListener]);
    }
    [_removeBrightnessMediaQueryListener]() {
      this[_brightnessMediaQuery].removeListener(this[_brightnessMediaQueryListener]);
      this[_brightnessMediaQueryListener] = null;
    }
    get onPlatformBrightnessChanged() {
      return this[_onPlatformBrightnessChanged];
    }
    set onPlatformBrightnessChanged(callback) {
      this[_onPlatformBrightnessChanged] = callback;
      this[_onPlatformBrightnessChangedZone] = async.Zone.current;
    }
    invokeOnPlatformBrightnessChanged() {
      _engine.invoke(this[_onPlatformBrightnessChanged], this[_onPlatformBrightnessChangedZone]);
    }
    get onSystemFontFamilyChanged() {
      return this[_onSystemFontFamilyChanged];
    }
    set onSystemFontFamilyChanged(callback) {
      this[_onSystemFontFamilyChanged] = callback;
      this[_onSystemFontFamilyChangedZone] = async.Zone.current;
    }
    invokeOnSystemFontFamilyChanged() {
      _engine.invoke(this[_onSystemFontFamilyChanged], this[_onSystemFontFamilyChangedZone]);
    }
    get semanticsEnabled() {
      return this.configuration.semanticsEnabled;
    }
    get onSemanticsEnabledChanged() {
      return this[_onSemanticsEnabledChanged];
    }
    set onSemanticsEnabledChanged(callback) {
      this[_onSemanticsEnabledChanged] = callback;
      this[_onSemanticsEnabledChangedZone] = async.Zone.current;
    }
    invokeOnSemanticsEnabledChanged() {
      _engine.invoke(this[_onSemanticsEnabledChanged], this[_onSemanticsEnabledChangedZone]);
    }
    get onSemanticsActionEvent() {
      return this[_onSemanticsActionEvent];
    }
    set onSemanticsActionEvent(callback) {
      this[_onSemanticsActionEvent] = callback;
      this[_onSemanticsActionEventZone] = async.Zone.current;
    }
    invokeOnSemanticsAction(nodeId, action, args) {
      if (nodeId == null) dart.nullFailed(I[325], 1295, 11, "nodeId");
      if (action == null) dart.nullFailed(I[325], 1295, 38, "action");
      _engine.invoke1(T$11.SemanticsActionEvent(), this[_onSemanticsActionEvent], this[_onSemanticsActionEventZone], new ui.SemanticsActionEvent.new({type: action, nodeId: nodeId, viewId: 0, arguments: args}));
    }
    set [_onErrorZone](_onErrorZone$35param) {
      if (_onErrorZone$35param == null) dart.nullFailed(I[325], 1312, 13, "_onErrorZone#param");
      this[__EnginePlatformDispatcher__onErrorZone_isSet] = true;
      this[__EnginePlatformDispatcher__onErrorZone] = _onErrorZone$35param;
    }
    get [_onErrorZone]() {
      let t$36581;
      return dart.test(this[__EnginePlatformDispatcher__onErrorZone_isSet]) ? (t$36581 = this[__EnginePlatformDispatcher__onErrorZone], t$36581) : dart.throw(new _internal.LateError.fieldNI("_onErrorZone"));
    }
    get onError() {
      return this[_onError];
    }
    set onError(callback) {
      this[_onError] = callback;
      this[_onErrorZone] = async.Zone.current;
    }
    get defaultRouteName() {
      let t$36582, t$36582$, t$36581;
      t$36581 = this[_defaultRouteName];
      return t$36581 == null ? this[_defaultRouteName] = (t$36582$ = (t$36582 = this.implicitView, t$36582 == null ? null : t$36582.browserHistory.currentPath), t$36582$ == null ? "/" : t$36582$) : t$36581;
    }
    replyToPlatformMessage(callback, data) {
      G.FutureOfvoid().delayed(core.Duration.zero).then(T$.Null(), dart.fn(_ => {
        if (callback != null) {
          callback(data);
        }
      }, T$.voidToNull()));
    }
    get frameData() {
      return C[913] || CT.C913;
    }
    scaleFontSize(unscaledFontSize) {
      if (unscaledFontSize == null) dart.nullFailed(I[325], 1383, 31, "unscaledFontSize");
      return dart.notNull(unscaledFontSize) * dart.notNull(this.textScaleFactor);
    }
  };
  (_engine.EnginePlatformDispatcher.new = function() {
    let t$36572;
    this[__EnginePlatformDispatcher__onViewDisposedListener] = null;
    this[__EnginePlatformDispatcher__onViewDisposedListener_isSet] = false;
    this[accessibilityPlaceholder] = _engine.EngineSemantics.instance.semanticsHelper.prepareAccessibilityPlaceholder();
    this[configuration] = new _engine.PlatformConfiguration.new({locales: _engine.EnginePlatformDispatcher.parseBrowserLanguages(), textScaleFactor: _engine.findBrowserTextScaleFactor(), accessibilityFeatures: _engine.EnginePlatformDispatcher.computeAccessibilityFeatures()});
    this[_onPlatformConfigurationChanged] = null;
    this[_onPlatformConfigurationChangedZone] = null;
    this[displays] = G$.JSArrayOfEngineFlutterDisplay().of([_engine.EngineFlutterDisplay.instance]);
    this[__EnginePlatformDispatcher_viewManager] = null;
    this[__EnginePlatformDispatcher_viewManager_isSet] = false;
    this[__EnginePlatformDispatcher__appLifecycleState] = null;
    this[__EnginePlatformDispatcher__appLifecycleState_isSet] = false;
    this[_onMetricsChanged] = null;
    this[_onMetricsChangedZone] = null;
    this[__EnginePlatformDispatcher__viewFocusBinding] = null;
    this[__EnginePlatformDispatcher__viewFocusBinding_isSet] = false;
    this[_onViewFocusChange$] = null;
    this[_onViewFocusChangeZone] = null;
    this[_viewsRenderedInCurrentFrame] = null;
    this[_onBeginFrame] = null;
    this[_onBeginFrameZone] = null;
    this[_onDrawFrame] = null;
    this[_onDrawFrameZone] = null;
    this[_onPointerDataPacket] = null;
    this[_onPointerDataPacketZone] = null;
    this[_onKeyData] = null;
    this[_onKeyDataZone] = null;
    this[_onReportTimings] = null;
    this[_onReportTimingsZone] = null;
    this[_onPlatformMessage] = null;
    this[_onPlatformMessageZone] = null;
    this[_onAccessibilityFeaturesChanged] = null;
    this[_onAccessibilityFeaturesChangedZone] = null;
    this[_onLocaleChangedSubscription] = null;
    this[_onLocaleChanged] = null;
    this[_onLocaleChangedZone] = null;
    this[_fontSizeObserver] = null;
    this[_onTextScaleFactorChanged] = null;
    this[_onTextScaleFactorChangedZone] = null;
    this[_brightnessMediaQuery] = _engine['DomWindowExtension|matchMedia'](dart.jsInteropNullCheck(dart.global.window), "(prefers-color-scheme: dark)");
    this[_brightnessMediaQueryListener] = null;
    this[_onPlatformBrightnessChanged] = null;
    this[_onPlatformBrightnessChangedZone] = null;
    this[_onSystemFontFamilyChanged] = null;
    this[_onSystemFontFamilyChangedZone] = null;
    this[_onSemanticsEnabledChanged] = null;
    this[_onSemanticsEnabledChangedZone] = null;
    this[_onSemanticsActionEvent] = null;
    this[_onSemanticsActionEventZone] = async.Zone.root;
    this[_onError] = null;
    this[__EnginePlatformDispatcher__onErrorZone] = null;
    this[__EnginePlatformDispatcher__onErrorZone_isSet] = false;
    this[_defaultRouteName] = null;
    this[_addBrightnessMediaQueryListener]();
    _engine.HighContrastSupport.instance.addListener(dart.bind(this, _updateHighContrast));
    this[_addFontSizeObserver]();
    this[_addLocaleChangedListener]();
    _engine.registerHotRestartListener(dart.bind(this, 'dispose'));
    this[_appLifecycleState].addListener(dart.bind(this, _setAppLifecycleState));
    this[_viewFocusBinding].init();
    t$36572 = js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body");
    t$36572 == null ? null : t$36572.prepend(this.accessibilityPlaceholder);
    this[_onViewDisposedListener] = this.viewManager.onViewDisposed.listen(dart.fn(_ => {
      if (_ == null) dart.nullFailed(I[325], 78, 66, "_");
      this.invokeOnMetricsChanged();
    }, T$.intTovoid()));
  }).prototype = _engine.EnginePlatformDispatcher.prototype;
  dart.addRtiResources(_engine.EnginePlatformDispatcher, ["_engine|EnginePlatformDispatcher"]);
  dart.setMethodSignature(_engine.EnginePlatformDispatcher, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    invokeOnPlatformConfigurationChanged: T$.VoidTovoid(),
    view: T$11.__ToEngineFlutterViewN(),
    invokeOnMetricsChanged: T$.VoidTovoid(),
    invokeOnViewFocusChange: T$11.ViewFocusEventTovoid(),
    requestViewFocusChange: T$11.__Tovoid$15(),
    invokeOnBeginFrame: T$11.DurationTovoid(),
    invokeOnDrawFrame: T$.VoidTovoid(),
    invokeOnPointerDataPacket: T$11.PointerDataPacketTovoid(),
    invokeOnKeyData: T$11.KeyDataAndFnTovoid(),
    invokeOnReportTimings: T$11.ListOfFrameTimingTovoid(),
    sendPlatformMessage: T$11.StringAndByteDataNAndFnTovoid$1(),
    sendPortPlatformMessage: T$11.StringAndByteDataNAndint__Tovoid(),
    registerBackgroundIsolate: T$11.RootIsolateTokenTovoid(),
    invokeOnPlatformMessage: T$8.StringAndByteDataNAndFnTovoid(),
    [_sendPlatformMessage]: T$11.StringAndByteDataNAndFnTovoid$1(),
    [_handleFlutterAssetsMessage]: T$11.StringAndFnToFutureOfvoid$1(),
    [_getHapticFeedbackDuration]: T$8.StringNToint(),
    scheduleFrame: T$.VoidTovoid(),
    scheduleWarmUpFrame: T$11.__Tovoid$16(),
    render: T$11.SceneAndFlutterViewNToFutureOfvoid(),
    invokeOnAccessibilityFeaturesChanged: T$.VoidTovoid(),
    updateSemantics: T$9.SemanticsUpdateTovoid(),
    [_addLocaleChangedListener]: T$.VoidTovoid(),
    [_removeLocaleChangedListener]: T$.VoidTovoid(),
    computePlatformResolvedLocale: T$11.ListOfLocaleToLocaleN(),
    debugResetLocales: T$.VoidTovoid(),
    updateLocales: T$.VoidTovoid(),
    invokeOnLocaleChanged: T$.VoidTovoid(),
    [_updateTextScaleFactor]: T$9.doubleTovoid(),
    [_addFontSizeObserver]: T$.VoidTovoid(),
    [_disconnectFontSizeObserver]: T$.VoidTovoid(),
    [_setAppLifecycleState]: T$11.AppLifecycleStateTovoid(),
    invokeOnTextScaleFactorChanged: T$.VoidTovoid(),
    updateSemanticsEnabled: T$1.boolTovoid(),
    [_updatePlatformBrightness]: T$11.BrightnessTovoid(),
    [_updateHighContrast]: T$1.boolTovoid(),
    [_addBrightnessMediaQueryListener]: T$.VoidTovoid(),
    [_removeBrightnessMediaQueryListener]: T$.VoidTovoid(),
    invokeOnPlatformBrightnessChanged: T$.VoidTovoid(),
    invokeOnSystemFontFamilyChanged: T$.VoidTovoid(),
    invokeOnSemanticsEnabledChanged: T$.VoidTovoid(),
    invokeOnSemanticsAction: T$11.intAndSemanticsActionAndByteDataNTovoid(),
    replyToPlatformMessage: T$11.FnAndByteDataNTovoid(),
    scaleFontSize: T$8.doubleTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EnginePlatformDispatcher))));
  dart.setStaticMethodSignature(_engine.EnginePlatformDispatcher, () => ['computeAccessibilityFeatures', '_zonedPlatformMessageResponseCallback', 'parseBrowserLanguages']);
  dart.setGetterSignature(_engine.EnginePlatformDispatcher, () => dart.global.Object.setPrototypeOf({
    [_onViewDisposedListener]: T$11.StreamSubscriptionOfint(),
    onPlatformConfigurationChanged: T$1.VoidToNvoid(),
    viewManager: T$9.FlutterViewManager(),
    [_appLifecycleState]: T$11.AppLifecycleState$1(),
    views: T$11.IterableOfEngineFlutterView(),
    implicitView: T$11.EngineFlutterWindowN(),
    onMetricsChanged: T$1.VoidToNvoid(),
    [_viewFocusBinding]: T$11.ViewFocusBinding(),
    onViewFocusChange: T$11.ViewFocusEventToNvoid(),
    onBeginFrame: T$11.DurationToNvoid(),
    onDrawFrame: T$1.VoidToNvoid(),
    onPointerDataPacket: T$11.PointerDataPacketToNvoid(),
    onKeyData: T$11.KeyDataToNbool(),
    onReportTimings: T$11.ListOfFrameTimingToNvoid(),
    onPlatformMessage: T$11.StringAndByteDataNAndFnToNvoid(),
    accessibilityFeatures: T$11.AccessibilityFeatures(),
    onAccessibilityFeaturesChanged: T$1.VoidToNvoid(),
    locale: T$9.Locale(),
    locales: T$11.ListOfLocale(),
    onLocaleChanged: T$1.VoidToNvoid(),
    textScaleFactor: T$.double(),
    alwaysUse24HourFormat: T$.bool(),
    onTextScaleFactorChanged: T$1.VoidToNvoid(),
    platformBrightness: T$9.Brightness(),
    systemFontFamily: T$.StringN(),
    onPlatformBrightnessChanged: T$1.VoidToNvoid(),
    onSystemFontFamilyChanged: T$1.VoidToNvoid(),
    semanticsEnabled: T$.bool(),
    onSemanticsEnabledChanged: T$1.VoidToNvoid(),
    onSemanticsActionEvent: T$11.SemanticsActionEventToNvoid(),
    [_onErrorZone]: T$.Zone(),
    onError: T$11.ObjectAndStackTraceToNbool(),
    defaultRouteName: T$.String(),
    frameData: T$11.FrameData()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EnginePlatformDispatcher))));
  dart.setSetterSignature(_engine.EnginePlatformDispatcher, () => dart.global.Object.setPrototypeOf({
    [_onViewDisposedListener]: T$11.StreamSubscriptionOfint(),
    onPlatformConfigurationChanged: T$1.VoidToNvoid(),
    onMetricsChanged: T$1.VoidToNvoid(),
    onViewFocusChange: T$11.ViewFocusEventToNvoid(),
    onBeginFrame: T$11.DurationToNvoid(),
    onDrawFrame: T$1.VoidToNvoid(),
    onPointerDataPacket: T$11.PointerDataPacketToNvoid(),
    onKeyData: T$11.KeyDataToNbool(),
    onReportTimings: T$11.ListOfFrameTimingToNvoid(),
    onPlatformMessage: T$11.StringAndByteDataNAndFnToNvoid(),
    onAccessibilityFeaturesChanged: T$1.VoidToNvoid(),
    onLocaleChanged: T$1.VoidToNvoid(),
    onTextScaleFactorChanged: T$1.VoidToNvoid(),
    onPlatformBrightnessChanged: T$1.VoidToNvoid(),
    onSystemFontFamilyChanged: T$1.VoidToNvoid(),
    onSemanticsEnabledChanged: T$1.VoidToNvoid(),
    onSemanticsActionEvent: T$11.SemanticsActionEventToNvoid(),
    [_onErrorZone]: T$.Zone(),
    onError: T$11.ObjectAndStackTraceToNbool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.EnginePlatformDispatcher))));
  dart.setStaticGetterSignature(_engine.EnginePlatformDispatcher, () => ['instance']);
  dart.setLibraryUri(_engine.EnginePlatformDispatcher, I[220]);
  dart.setFieldSignature(_engine.EnginePlatformDispatcher, () => dart.global.Object.setPrototypeOf({
    [__EnginePlatformDispatcher__onViewDisposedListener]: {type: T$10.StreamSubscriptionNOfint(), isConst: false, isFinal: false, libraryUri: I[39]},
    [__EnginePlatformDispatcher__onViewDisposedListener_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    accessibilityPlaceholder: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    configuration: {type: T$11.PlatformConfiguration(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_onPlatformConfigurationChanged]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_onPlatformConfigurationChangedZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    displays: {type: T$11.IterableOfEngineFlutterDisplay(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__EnginePlatformDispatcher_viewManager]: {type: T$11.FlutterViewManagerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EnginePlatformDispatcher_viewManager_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__EnginePlatformDispatcher__appLifecycleState]: {type: T$11.AppLifecycleStateN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EnginePlatformDispatcher__appLifecycleState_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_onMetricsChanged]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_onMetricsChangedZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [__EnginePlatformDispatcher__viewFocusBinding]: {type: T$11.ViewFocusBindingN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EnginePlatformDispatcher__viewFocusBinding_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_onViewFocusChange$]: {type: T$11.ViewFocusEventToNvoid(), isConst: false, isFinal: false},
    [_onViewFocusChangeZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_viewsRenderedInCurrentFrame]: {type: T$11.SetNOfFlutterView(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_onBeginFrame]: {type: T$11.DurationToNvoid(), isConst: false, isFinal: false},
    [_onBeginFrameZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onDrawFrame]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_onDrawFrameZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onPointerDataPacket]: {type: T$11.PointerDataPacketToNvoid(), isConst: false, isFinal: false},
    [_onPointerDataPacketZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onKeyData]: {type: T$11.KeyDataToNbool(), isConst: false, isFinal: false},
    [_onKeyDataZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onReportTimings]: {type: T$11.ListOfFrameTimingToNvoid(), isConst: false, isFinal: false},
    [_onReportTimingsZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onPlatformMessage]: {type: T$11.StringAndByteDataNAndFnToNvoid(), isConst: false, isFinal: false},
    [_onPlatformMessageZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onAccessibilityFeaturesChanged]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_onAccessibilityFeaturesChangedZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onLocaleChangedSubscription]: {type: T$11.DomSubscriptionN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_onLocaleChanged]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_onLocaleChangedZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_fontSizeObserver]: {type: T$11.DomMutationObserverN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_onTextScaleFactorChanged]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_onTextScaleFactorChangedZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_brightnessMediaQuery]: {type: T$11.DomMediaQueryList(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_brightnessMediaQueryListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_onPlatformBrightnessChanged]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_onPlatformBrightnessChangedZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onSystemFontFamilyChanged]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_onSystemFontFamilyChangedZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onSemanticsEnabledChanged]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_onSemanticsEnabledChangedZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onSemanticsActionEvent]: {type: T$11.SemanticsActionEventToNvoid(), isConst: false, isFinal: false},
    [_onSemanticsActionEventZone]: {type: T$.Zone(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_onError]: {type: T$11.ObjectAndStackTraceToNbool(), isConst: false, isFinal: false},
    [__EnginePlatformDispatcher__onErrorZone]: {type: T$11.ZoneN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [__EnginePlatformDispatcher__onErrorZone_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_defaultRouteName]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EnginePlatformDispatcher))));
  dart.setStaticFieldSignature(_engine.EnginePlatformDispatcher, () => ['_instance', '_defaultLocale']);
  dart.defineLazy(_engine.EnginePlatformDispatcher, {
    /*_engine.EnginePlatformDispatcher._instance*/get _instance() {
      return new _engine.EnginePlatformDispatcher.new();
    },
    /*_engine.EnginePlatformDispatcher._defaultLocale*/get _defaultLocale() {
      return C[911] || CT.C911;
    }
  }, false);
  var view$0 = dart.privateName(_engine, "ViewConfiguration.view");
  var devicePixelRatio$ = dart.privateName(_engine, "ViewConfiguration.devicePixelRatio");
  var visible$ = dart.privateName(_engine, "ViewConfiguration.visible");
  var viewInsets$ = dart.privateName(_engine, "ViewConfiguration.viewInsets");
  var viewPadding$ = dart.privateName(_engine, "ViewConfiguration.viewPadding");
  var systemGestureInsets$ = dart.privateName(_engine, "ViewConfiguration.systemGestureInsets");
  var padding$ = dart.privateName(_engine, "ViewConfiguration.padding");
  var gestureSettings$ = dart.privateName(_engine, "ViewConfiguration.gestureSettings");
  var displayFeatures$ = dart.privateName(_engine, "ViewConfiguration.displayFeatures");
  _engine.ViewConfiguration = class ViewConfiguration extends core.Object {
    get view() {
      return this[view$0];
    }
    set view(value) {
      super.view = value;
    }
    get devicePixelRatio() {
      return this[devicePixelRatio$];
    }
    set devicePixelRatio(value) {
      super.devicePixelRatio = value;
    }
    get visible() {
      return this[visible$];
    }
    set visible(value) {
      super.visible = value;
    }
    get viewInsets() {
      return this[viewInsets$];
    }
    set viewInsets(value) {
      super.viewInsets = value;
    }
    get viewPadding() {
      return this[viewPadding$];
    }
    set viewPadding(value) {
      super.viewPadding = value;
    }
    get systemGestureInsets() {
      return this[systemGestureInsets$];
    }
    set systemGestureInsets(value) {
      super.systemGestureInsets = value;
    }
    get padding() {
      return this[padding$];
    }
    set padding(value) {
      super.padding = value;
    }
    get gestureSettings() {
      return this[gestureSettings$];
    }
    set gestureSettings(value) {
      super.gestureSettings = value;
    }
    get displayFeatures() {
      return this[displayFeatures$];
    }
    set displayFeatures(value) {
      super.displayFeatures = value;
    }
    static ['_#new#tearOff'](opts) {
      let view = opts && 'view' in opts ? opts.view : null;
      let devicePixelRatio = opts && 'devicePixelRatio' in opts ? opts.devicePixelRatio : 1;
      if (devicePixelRatio == null) dart.nullFailed(I[325], 1478, 10, "devicePixelRatio");
      let visible = opts && 'visible' in opts ? opts.visible : false;
      if (visible == null) dart.nullFailed(I[325], 1479, 10, "visible");
      let viewInsets = opts && 'viewInsets' in opts ? opts.viewInsets : C[635] || CT.C635;
      if (viewInsets == null) dart.nullFailed(I[325], 1480, 10, "viewInsets");
      let viewPadding = opts && 'viewPadding' in opts ? opts.viewPadding : C[635] || CT.C635;
      if (viewPadding == null) dart.nullFailed(I[325], 1481, 10, "viewPadding");
      let systemGestureInsets = opts && 'systemGestureInsets' in opts ? opts.systemGestureInsets : C[635] || CT.C635;
      if (systemGestureInsets == null) dart.nullFailed(I[325], 1482, 10, "systemGestureInsets");
      let padding = opts && 'padding' in opts ? opts.padding : C[635] || CT.C635;
      if (padding == null) dart.nullFailed(I[325], 1483, 10, "padding");
      let gestureSettings = opts && 'gestureSettings' in opts ? opts.gestureSettings : C[914] || CT.C914;
      if (gestureSettings == null) dart.nullFailed(I[325], 1484, 10, "gestureSettings");
      let displayFeatures = opts && 'displayFeatures' in opts ? opts.displayFeatures : C[915] || CT.C915;
      if (displayFeatures == null) dart.nullFailed(I[325], 1485, 10, "displayFeatures");
      return new _engine.ViewConfiguration.new({view: view, devicePixelRatio: devicePixelRatio, visible: visible, viewInsets: viewInsets, viewPadding: viewPadding, systemGestureInsets: systemGestureInsets, padding: padding, gestureSettings: gestureSettings, displayFeatures: displayFeatures});
    }
    copyWith(opts) {
      let t$36581, t$36581$, t$36581$0, t$36581$1, t$36581$2, t$36581$3, t$36581$4, t$36581$5, t$36581$6;
      let view = opts && 'view' in opts ? opts.view : null;
      let devicePixelRatio = opts && 'devicePixelRatio' in opts ? opts.devicePixelRatio : null;
      let visible = opts && 'visible' in opts ? opts.visible : null;
      let viewInsets = opts && 'viewInsets' in opts ? opts.viewInsets : null;
      let viewPadding = opts && 'viewPadding' in opts ? opts.viewPadding : null;
      let systemGestureInsets = opts && 'systemGestureInsets' in opts ? opts.systemGestureInsets : null;
      let padding = opts && 'padding' in opts ? opts.padding : null;
      let gestureSettings = opts && 'gestureSettings' in opts ? opts.gestureSettings : null;
      let displayFeatures = opts && 'displayFeatures' in opts ? opts.displayFeatures : null;
      return new _engine.ViewConfiguration.new({view: (t$36581 = view, t$36581 == null ? this.view : t$36581), devicePixelRatio: (t$36581$ = devicePixelRatio, t$36581$ == null ? this.devicePixelRatio : t$36581$), visible: (t$36581$0 = visible, t$36581$0 == null ? this.visible : t$36581$0), viewInsets: (t$36581$1 = viewInsets, t$36581$1 == null ? this.viewInsets : t$36581$1), viewPadding: (t$36581$2 = viewPadding, t$36581$2 == null ? this.viewPadding : t$36581$2), systemGestureInsets: (t$36581$3 = systemGestureInsets, t$36581$3 == null ? this.systemGestureInsets : t$36581$3), padding: (t$36581$4 = padding, t$36581$4 == null ? this.padding : t$36581$4), gestureSettings: (t$36581$5 = gestureSettings, t$36581$5 == null ? this.gestureSettings : t$36581$5), displayFeatures: (t$36581$6 = displayFeatures, t$36581$6 == null ? this.displayFeatures : t$36581$6)});
    }
    toString() {
      return dart.str(dart.runtimeType(this)) + "[view: " + dart.str(this.view) + "]";
    }
  };
  (_engine.ViewConfiguration.new = function(opts) {
    let view = opts && 'view' in opts ? opts.view : null;
    let devicePixelRatio = opts && 'devicePixelRatio' in opts ? opts.devicePixelRatio : 1;
    if (devicePixelRatio == null) dart.nullFailed(I[325], 1478, 10, "devicePixelRatio");
    let visible = opts && 'visible' in opts ? opts.visible : false;
    if (visible == null) dart.nullFailed(I[325], 1479, 10, "visible");
    let viewInsets = opts && 'viewInsets' in opts ? opts.viewInsets : C[635] || CT.C635;
    if (viewInsets == null) dart.nullFailed(I[325], 1480, 10, "viewInsets");
    let viewPadding = opts && 'viewPadding' in opts ? opts.viewPadding : C[635] || CT.C635;
    if (viewPadding == null) dart.nullFailed(I[325], 1481, 10, "viewPadding");
    let systemGestureInsets = opts && 'systemGestureInsets' in opts ? opts.systemGestureInsets : C[635] || CT.C635;
    if (systemGestureInsets == null) dart.nullFailed(I[325], 1482, 10, "systemGestureInsets");
    let padding = opts && 'padding' in opts ? opts.padding : C[635] || CT.C635;
    if (padding == null) dart.nullFailed(I[325], 1483, 10, "padding");
    let gestureSettings = opts && 'gestureSettings' in opts ? opts.gestureSettings : C[914] || CT.C914;
    if (gestureSettings == null) dart.nullFailed(I[325], 1484, 10, "gestureSettings");
    let displayFeatures = opts && 'displayFeatures' in opts ? opts.displayFeatures : C[915] || CT.C915;
    if (displayFeatures == null) dart.nullFailed(I[325], 1485, 10, "displayFeatures");
    this[view$0] = view;
    this[devicePixelRatio$] = devicePixelRatio;
    this[visible$] = visible;
    this[viewInsets$] = viewInsets;
    this[viewPadding$] = viewPadding;
    this[systemGestureInsets$] = systemGestureInsets;
    this[padding$] = padding;
    this[gestureSettings$] = gestureSettings;
    this[displayFeatures$] = displayFeatures;
    ;
  }).prototype = _engine.ViewConfiguration.prototype;
  dart.addRtiResources(_engine.ViewConfiguration, ["_engine|ViewConfiguration"]);
  dart.setMethodSignature(_engine.ViewConfiguration, () => dart.global.Object.setPrototypeOf({copyWith: T$11.__ToViewConfiguration()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ViewConfiguration))));
  dart.setLibraryUri(_engine.ViewConfiguration, I[220]);
  dart.setFieldSignature(_engine.ViewConfiguration, () => dart.global.Object.setPrototypeOf({
    view: {type: T$11.EngineFlutterViewN(), isConst: false, isFinal: true, libraryUri: I[220]},
    devicePixelRatio: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    visible: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    viewInsets: {type: T$11.ViewPadding$1(), isConst: false, isFinal: true, libraryUri: I[220]},
    viewPadding: {type: T$11.ViewPadding$1(), isConst: false, isFinal: true, libraryUri: I[220]},
    systemGestureInsets: {type: T$11.ViewPadding$1(), isConst: false, isFinal: true, libraryUri: I[220]},
    padding: {type: T$11.ViewPadding$1(), isConst: false, isFinal: true, libraryUri: I[220]},
    gestureSettings: {type: T$9.GestureSettings(), isConst: false, isFinal: true, libraryUri: I[198]},
    displayFeatures: {type: T$11.ListOfDisplayFeature(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ViewConfiguration))));
  dart.defineExtensionMethods(_engine.ViewConfiguration, ['toString']);
  var accessibilityFeatures$ = dart.privateName(_engine, "PlatformConfiguration.accessibilityFeatures");
  var alwaysUse24HourFormat$ = dart.privateName(_engine, "PlatformConfiguration.alwaysUse24HourFormat");
  var semanticsEnabled$ = dart.privateName(_engine, "PlatformConfiguration.semanticsEnabled");
  var platformBrightness$ = dart.privateName(_engine, "PlatformConfiguration.platformBrightness");
  var textScaleFactor$ = dart.privateName(_engine, "PlatformConfiguration.textScaleFactor");
  var locales$ = dart.privateName(_engine, "PlatformConfiguration.locales");
  var defaultRouteName$ = dart.privateName(_engine, "PlatformConfiguration.defaultRouteName");
  var systemFontFamily$ = dart.privateName(_engine, "PlatformConfiguration.systemFontFamily");
  var EngineAccessibilityFeatures__index = dart.privateName(_engine, "EngineAccessibilityFeatures._index");
  _engine.PlatformConfiguration = class PlatformConfiguration extends core.Object {
    get accessibilityFeatures() {
      return this[accessibilityFeatures$];
    }
    set accessibilityFeatures(value) {
      super.accessibilityFeatures = value;
    }
    get alwaysUse24HourFormat() {
      return this[alwaysUse24HourFormat$];
    }
    set alwaysUse24HourFormat(value) {
      super.alwaysUse24HourFormat = value;
    }
    get semanticsEnabled() {
      return this[semanticsEnabled$];
    }
    set semanticsEnabled(value) {
      super.semanticsEnabled = value;
    }
    get platformBrightness() {
      return this[platformBrightness$];
    }
    set platformBrightness(value) {
      super.platformBrightness = value;
    }
    get textScaleFactor() {
      return this[textScaleFactor$];
    }
    set textScaleFactor(value) {
      super.textScaleFactor = value;
    }
    get locales() {
      return this[locales$];
    }
    set locales(value) {
      super.locales = value;
    }
    get defaultRouteName() {
      return this[defaultRouteName$];
    }
    set defaultRouteName(value) {
      super.defaultRouteName = value;
    }
    get systemFontFamily() {
      return this[systemFontFamily$];
    }
    set systemFontFamily(value) {
      super.systemFontFamily = value;
    }
    static ['_#new#tearOff'](opts) {
      let accessibilityFeatures = opts && 'accessibilityFeatures' in opts ? opts.accessibilityFeatures : C[916] || CT.C916;
      if (accessibilityFeatures == null) dart.nullFailed(I[325], 1530, 10, "accessibilityFeatures");
      let alwaysUse24HourFormat = opts && 'alwaysUse24HourFormat' in opts ? opts.alwaysUse24HourFormat : false;
      if (alwaysUse24HourFormat == null) dart.nullFailed(I[325], 1531, 10, "alwaysUse24HourFormat");
      let semanticsEnabled = opts && 'semanticsEnabled' in opts ? opts.semanticsEnabled : false;
      if (semanticsEnabled == null) dart.nullFailed(I[325], 1532, 10, "semanticsEnabled");
      let platformBrightness = opts && 'platformBrightness' in opts ? opts.platformBrightness : C[806] || CT.C806;
      if (platformBrightness == null) dart.nullFailed(I[325], 1533, 10, "platformBrightness");
      let textScaleFactor = opts && 'textScaleFactor' in opts ? opts.textScaleFactor : 1;
      if (textScaleFactor == null) dart.nullFailed(I[325], 1534, 10, "textScaleFactor");
      let locales = opts && 'locales' in opts ? opts.locales : C[909] || CT.C909;
      if (locales == null) dart.nullFailed(I[325], 1535, 10, "locales");
      let defaultRouteName = opts && 'defaultRouteName' in opts ? opts.defaultRouteName : "/";
      if (defaultRouteName == null) dart.nullFailed(I[325], 1536, 10, "defaultRouteName");
      let systemFontFamily = opts && 'systemFontFamily' in opts ? opts.systemFontFamily : null;
      return new _engine.PlatformConfiguration.new({accessibilityFeatures: accessibilityFeatures, alwaysUse24HourFormat: alwaysUse24HourFormat, semanticsEnabled: semanticsEnabled, platformBrightness: platformBrightness, textScaleFactor: textScaleFactor, locales: locales, defaultRouteName: defaultRouteName, systemFontFamily: systemFontFamily});
    }
    copyWith(opts) {
      let t$36581, t$36581$, t$36581$0, t$36581$1, t$36581$2, t$36581$3, t$36581$4, t$36581$5;
      let accessibilityFeatures = opts && 'accessibilityFeatures' in opts ? opts.accessibilityFeatures : null;
      let alwaysUse24HourFormat = opts && 'alwaysUse24HourFormat' in opts ? opts.alwaysUse24HourFormat : null;
      let semanticsEnabled = opts && 'semanticsEnabled' in opts ? opts.semanticsEnabled : null;
      let platformBrightness = opts && 'platformBrightness' in opts ? opts.platformBrightness : null;
      let textScaleFactor = opts && 'textScaleFactor' in opts ? opts.textScaleFactor : null;
      let locales = opts && 'locales' in opts ? opts.locales : null;
      let defaultRouteName = opts && 'defaultRouteName' in opts ? opts.defaultRouteName : null;
      let systemFontFamily = opts && 'systemFontFamily' in opts ? opts.systemFontFamily : null;
      return new _engine.PlatformConfiguration.new({accessibilityFeatures: (t$36581 = accessibilityFeatures, t$36581 == null ? this.accessibilityFeatures : t$36581), alwaysUse24HourFormat: (t$36581$ = alwaysUse24HourFormat, t$36581$ == null ? this.alwaysUse24HourFormat : t$36581$), semanticsEnabled: (t$36581$0 = semanticsEnabled, t$36581$0 == null ? this.semanticsEnabled : t$36581$0), platformBrightness: (t$36581$1 = platformBrightness, t$36581$1 == null ? this.platformBrightness : t$36581$1), textScaleFactor: (t$36581$2 = textScaleFactor, t$36581$2 == null ? this.textScaleFactor : t$36581$2), locales: (t$36581$3 = locales, t$36581$3 == null ? this.locales : t$36581$3), defaultRouteName: (t$36581$4 = defaultRouteName, t$36581$4 == null ? this.defaultRouteName : t$36581$4), systemFontFamily: (t$36581$5 = systemFontFamily, t$36581$5 == null ? this.systemFontFamily : t$36581$5)});
    }
  };
  (_engine.PlatformConfiguration.new = function(opts) {
    let accessibilityFeatures = opts && 'accessibilityFeatures' in opts ? opts.accessibilityFeatures : C[916] || CT.C916;
    if (accessibilityFeatures == null) dart.nullFailed(I[325], 1530, 10, "accessibilityFeatures");
    let alwaysUse24HourFormat = opts && 'alwaysUse24HourFormat' in opts ? opts.alwaysUse24HourFormat : false;
    if (alwaysUse24HourFormat == null) dart.nullFailed(I[325], 1531, 10, "alwaysUse24HourFormat");
    let semanticsEnabled = opts && 'semanticsEnabled' in opts ? opts.semanticsEnabled : false;
    if (semanticsEnabled == null) dart.nullFailed(I[325], 1532, 10, "semanticsEnabled");
    let platformBrightness = opts && 'platformBrightness' in opts ? opts.platformBrightness : C[806] || CT.C806;
    if (platformBrightness == null) dart.nullFailed(I[325], 1533, 10, "platformBrightness");
    let textScaleFactor = opts && 'textScaleFactor' in opts ? opts.textScaleFactor : 1;
    if (textScaleFactor == null) dart.nullFailed(I[325], 1534, 10, "textScaleFactor");
    let locales = opts && 'locales' in opts ? opts.locales : C[909] || CT.C909;
    if (locales == null) dart.nullFailed(I[325], 1535, 10, "locales");
    let defaultRouteName = opts && 'defaultRouteName' in opts ? opts.defaultRouteName : "/";
    if (defaultRouteName == null) dart.nullFailed(I[325], 1536, 10, "defaultRouteName");
    let systemFontFamily = opts && 'systemFontFamily' in opts ? opts.systemFontFamily : null;
    this[accessibilityFeatures$] = accessibilityFeatures;
    this[alwaysUse24HourFormat$] = alwaysUse24HourFormat;
    this[semanticsEnabled$] = semanticsEnabled;
    this[platformBrightness$] = platformBrightness;
    this[textScaleFactor$] = textScaleFactor;
    this[locales$] = locales;
    this[defaultRouteName$] = defaultRouteName;
    this[systemFontFamily$] = systemFontFamily;
    ;
  }).prototype = _engine.PlatformConfiguration.prototype;
  dart.addRtiResources(_engine.PlatformConfiguration, ["_engine|PlatformConfiguration"]);
  dart.setMethodSignature(_engine.PlatformConfiguration, () => dart.global.Object.setPrototypeOf({copyWith: T$11.__ToPlatformConfiguration()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PlatformConfiguration))));
  dart.setLibraryUri(_engine.PlatformConfiguration, I[220]);
  dart.setFieldSignature(_engine.PlatformConfiguration, () => dart.global.Object.setPrototypeOf({
    accessibilityFeatures: {type: T$11.AccessibilityFeatures(), isConst: false, isFinal: true, libraryUri: I[198]},
    alwaysUse24HourFormat: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    semanticsEnabled: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    platformBrightness: {type: T$9.Brightness(), isConst: false, isFinal: true, libraryUri: I[198]},
    textScaleFactor: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    locales: {type: T$11.ListOfLocale(), isConst: false, isFinal: true, libraryUri: I[11]},
    defaultRouteName: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    systemFontFamily: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformConfiguration))));
  _engine.AppLifecycleState = class AppLifecycleState extends core.Object {
    static create(viewManager) {
      if (viewManager == null) dart.nullFailed(I[326], 15, 54, "viewManager");
      return new _engine._BrowserAppLifecycleState.new(viewManager);
    }
    get appLifecycleState() {
      return this[_appLifecycleState];
    }
    addListener(listener) {
      if (listener == null) dart.nullFailed(I[326], 25, 46, "listener");
      if (dart.test(this[_listeners][$isEmpty])) {
        this.activate();
      }
      this[_listeners][$add](listener);
      listener(this[_appLifecycleState]);
    }
    removeListener(listener) {
      if (listener == null) dart.nullFailed(I[326], 33, 49, "listener");
      this[_listeners][$remove](listener);
      if (dart.test(this[_listeners][$isEmpty])) {
        this.deactivate();
      }
    }
    onAppLifecycleStateChange(newState) {
      if (newState == null) dart.nullFailed(I[326], 47, 55, "newState");
      if (newState != this[_appLifecycleState]) {
        this[_appLifecycleState] = newState;
        for (let listener of this[_listeners]) {
          listener(newState);
        }
      }
    }
  };
  (_engine.AppLifecycleState.new = function() {
    this[_appLifecycleState] = ui.AppLifecycleState.resumed;
    this[_listeners] = G$.JSArrayOfAppLifecycleStateTovoid().of([]);
    ;
  }).prototype = _engine.AppLifecycleState.prototype;
  dart.addRtiResources(_engine.AppLifecycleState, ["_engine|AppLifecycleState"]);
  dart.setMethodSignature(_engine.AppLifecycleState, () => dart.global.Object.setPrototypeOf({
    addListener: T$11.FnTovoid$43(),
    removeListener: T$11.FnTovoid$43(),
    onAppLifecycleStateChange: T$11.AppLifecycleStateTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.AppLifecycleState))));
  dart.setStaticMethodSignature(_engine.AppLifecycleState, () => ['create']);
  dart.setGetterSignature(_engine.AppLifecycleState, () => dart.global.Object.setPrototypeOf({appLifecycleState: T$9.AppLifecycleState()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.AppLifecycleState))));
  dart.setLibraryUri(_engine.AppLifecycleState, I[220]);
  dart.setFieldSignature(_engine.AppLifecycleState, () => dart.global.Object.setPrototypeOf({
    [_appLifecycleState]: {type: T$9.AppLifecycleState(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_listeners]: {type: T$11.ListOfAppLifecycleStateTovoid(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AppLifecycleState))));
  var _subscriptions = dart.privateName(_engine, "_subscriptions");
  var ___BrowserAppLifecycleState__focusListener = dart.privateName(_engine, "_#_BrowserAppLifecycleState#_focusListener");
  var ___BrowserAppLifecycleState__focusListener_isSet = dart.privateName(_engine, "_#_BrowserAppLifecycleState#_focusListener#isSet");
  var ___BrowserAppLifecycleState__blurListener = dart.privateName(_engine, "_#_BrowserAppLifecycleState#_blurListener");
  var ___BrowserAppLifecycleState__blurListener_isSet = dart.privateName(_engine, "_#_BrowserAppLifecycleState#_blurListener#isSet");
  var ___BrowserAppLifecycleState__visibilityChangeListener = dart.privateName(_engine, "_#_BrowserAppLifecycleState#_visibilityChangeListener");
  var ___BrowserAppLifecycleState__visibilityChangeListener_isSet = dart.privateName(_engine, "_#_BrowserAppLifecycleState#_visibilityChangeListener#isSet");
  var _viewManager$ = dart.privateName(_engine, "_viewManager");
  var _focusListener = dart.privateName(_engine, "_focusListener");
  var _blurListener = dart.privateName(_engine, "_blurListener");
  var _visibilityChangeListener = dart.privateName(_engine, "_visibilityChangeListener");
  var _onViewCountChanged = dart.privateName(_engine, "_onViewCountChanged");
  _engine._BrowserAppLifecycleState = class _BrowserAppLifecycleState extends _engine.AppLifecycleState {
    static ['_#new#tearOff'](_viewManager) {
      if (_viewManager == null) dart.nullFailed(I[326], 64, 34, "_viewManager");
      return new _engine._BrowserAppLifecycleState.new(_viewManager);
    }
    activate() {
      let t$36581;
      _engine['DomEventTargetExtension|addEventListener'](dart.jsInteropNullCheck(dart.global.window), "focus", this[_focusListener]);
      _engine['DomEventTargetExtension|addEventListener'](dart.jsInteropNullCheck(dart.global.window), "blur", this[_blurListener]);
      _engine['DomEventTargetExtension|addEventListener'](dart.jsInteropNullCheck(dart.global.document), "visibilitychange", this[_visibilityChangeListener]);
      t$36581 = this[_subscriptions];
      (() => {
        t$36581[$add](this[_viewManager$].onViewCreated.listen(dart.bind(this, _onViewCountChanged)));
        t$36581[$add](this[_viewManager$].onViewDisposed.listen(dart.bind(this, _onViewCountChanged)));
        return t$36581;
      })();
    }
    deactivate() {
      _engine['DomEventTargetExtension|removeEventListener'](dart.jsInteropNullCheck(dart.global.window), "focus", this[_focusListener]);
      _engine['DomEventTargetExtension|removeEventListener'](dart.jsInteropNullCheck(dart.global.window), "blur", this[_blurListener]);
      _engine['DomEventTargetExtension|removeEventListener'](dart.jsInteropNullCheck(dart.global.document), "visibilitychange", this[_visibilityChangeListener]);
      for (let subscription of this[_subscriptions]) {
        subscription.cancel();
      }
      this[_subscriptions][$clear]();
    }
    get [_focusListener]() {
      let t$36582;
      if (!dart.test(this[___BrowserAppLifecycleState__focusListener_isSet])) {
        let t$36581 = _engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[326], 94, 40, "event");
          this.onAppLifecycleStateChange(ui.AppLifecycleState.resumed);
        }, T$10.DomEventTovoid()));
        if (dart.test(this[___BrowserAppLifecycleState__focusListener_isSet])) dart.throw(new _internal.LateError.fieldADI("_focusListener"));
        this[___BrowserAppLifecycleState__focusListener] = t$36581;
        this[___BrowserAppLifecycleState__focusListener_isSet] = true;
      }
      t$36582 = this[___BrowserAppLifecycleState__focusListener];
      return t$36582;
    }
    get [_blurListener]() {
      let t$36583;
      if (!dart.test(this[___BrowserAppLifecycleState__blurListener_isSet])) {
        let t$36582 = _engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[326], 99, 40, "event");
          this.onAppLifecycleStateChange(ui.AppLifecycleState.inactive);
        }, T$10.DomEventTovoid()));
        if (dart.test(this[___BrowserAppLifecycleState__blurListener_isSet])) dart.throw(new _internal.LateError.fieldADI("_blurListener"));
        this[___BrowserAppLifecycleState__blurListener] = t$36582;
        this[___BrowserAppLifecycleState__blurListener_isSet] = true;
      }
      t$36583 = this[___BrowserAppLifecycleState__blurListener];
      return t$36583;
    }
    get [_visibilityChangeListener]() {
      let t$36584;
      if (!dart.test(this[___BrowserAppLifecycleState__visibilityChangeListener_isSet])) {
        let t$36583 = _engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[326], 104, 40, "event");
          if (_engine['DomHTMLDocumentExtension|get#visibilityState'](dart.jsInteropNullCheck(dart.global.document)) === "visible") {
            this.onAppLifecycleStateChange(ui.AppLifecycleState.resumed);
          } else if (_engine['DomHTMLDocumentExtension|get#visibilityState'](dart.jsInteropNullCheck(dart.global.document)) === "hidden") {
            this.onAppLifecycleStateChange(ui.AppLifecycleState.hidden);
          }
        }, T$10.DomEventTovoid()));
        if (dart.test(this[___BrowserAppLifecycleState__visibilityChangeListener_isSet])) dart.throw(new _internal.LateError.fieldADI("_visibilityChangeListener"));
        this[___BrowserAppLifecycleState__visibilityChangeListener] = t$36583;
        this[___BrowserAppLifecycleState__visibilityChangeListener_isSet] = true;
      }
      t$36584 = this[___BrowserAppLifecycleState__visibilityChangeListener];
      return t$36584;
    }
    [_onViewCountChanged](_) {
      if (dart.test(this[_viewManager$].views[$isEmpty])) {
        this.onAppLifecycleStateChange(ui.AppLifecycleState.detached);
      } else {
        this.onAppLifecycleStateChange(ui.AppLifecycleState.resumed);
      }
    }
  };
  (_engine._BrowserAppLifecycleState.new = function(_viewManager) {
    if (_viewManager == null) dart.nullFailed(I[326], 64, 34, "_viewManager");
    this[_subscriptions] = G$.JSArrayOfStreamSubscriptionOfvoid().of([]);
    this[___BrowserAppLifecycleState__focusListener] = null;
    this[___BrowserAppLifecycleState__focusListener_isSet] = false;
    this[___BrowserAppLifecycleState__blurListener] = null;
    this[___BrowserAppLifecycleState__blurListener_isSet] = false;
    this[___BrowserAppLifecycleState__visibilityChangeListener] = null;
    this[___BrowserAppLifecycleState__visibilityChangeListener_isSet] = false;
    this[_viewManager$] = _viewManager;
    dart.global.Object.getPrototypeOf(_engine._BrowserAppLifecycleState).new.call(this);
    ;
  }).prototype = _engine._BrowserAppLifecycleState.prototype;
  dart.addRtiResources(_engine._BrowserAppLifecycleState, ["_engine|_BrowserAppLifecycleState"]);
  dart.setMethodSignature(_engine._BrowserAppLifecycleState, () => dart.global.Object.setPrototypeOf({
    activate: T$.VoidTovoid(),
    deactivate: T$.VoidTovoid(),
    [_onViewCountChanged]: T$.dynamicTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._BrowserAppLifecycleState))));
  dart.setGetterSignature(_engine._BrowserAppLifecycleState, () => dart.global.Object.setPrototypeOf({
    [_focusListener]: T$9.DomEventListener(),
    [_blurListener]: T$9.DomEventListener(),
    [_visibilityChangeListener]: T$9.DomEventListener()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._BrowserAppLifecycleState))));
  dart.setLibraryUri(_engine._BrowserAppLifecycleState, I[220]);
  dart.setFieldSignature(_engine._BrowserAppLifecycleState, () => dart.global.Object.setPrototypeOf({
    [_viewManager$]: {type: T$9.FlutterViewManager(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_subscriptions]: {type: T$11.ListOfStreamSubscriptionOfvoid(), isConst: false, isFinal: true, libraryUri: I[11]},
    [___BrowserAppLifecycleState__focusListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___BrowserAppLifecycleState__focusListener_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___BrowserAppLifecycleState__blurListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___BrowserAppLifecycleState__blurListener_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___BrowserAppLifecycleState__visibilityChangeListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___BrowserAppLifecycleState__visibilityChangeListener_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._BrowserAppLifecycleState))));
  var _lastViewId = dart.privateName(_engine, "_lastViewId");
  var _viewFocusDirection = dart.privateName(_engine, "_viewFocusDirection");
  var __ViewFocusBinding__handleFocusin = dart.privateName(_engine, "_#ViewFocusBinding#_handleFocusin");
  var __ViewFocusBinding__handleFocusin_isSet = dart.privateName(_engine, "_#ViewFocusBinding#_handleFocusin#isSet");
  var __ViewFocusBinding__handleFocusout = dart.privateName(_engine, "_#ViewFocusBinding#_handleFocusout");
  var __ViewFocusBinding__handleFocusout_isSet = dart.privateName(_engine, "_#ViewFocusBinding#_handleFocusout#isSet");
  var __ViewFocusBinding__handleKeyDown = dart.privateName(_engine, "_#ViewFocusBinding#_handleKeyDown");
  var __ViewFocusBinding__handleKeyDown_isSet = dart.privateName(_engine, "_#ViewFocusBinding#_handleKeyDown#isSet");
  var __ViewFocusBinding__handleKeyUp = dart.privateName(_engine, "_#ViewFocusBinding#_handleKeyUp");
  var __ViewFocusBinding__handleKeyUp_isSet = dart.privateName(_engine, "_#ViewFocusBinding#_handleKeyUp#isSet");
  var _handleKeyDown = dart.privateName(_engine, "_handleKeyDown");
  var _handleKeyUp = dart.privateName(_engine, "_handleKeyUp");
  var _handleFocusin = dart.privateName(_engine, "_handleFocusin");
  var _handleFocusout = dart.privateName(_engine, "_handleFocusout");
  var _handleViewCreated = dart.privateName(_engine, "_handleViewCreated");
  var _viewId = dart.privateName(_engine, "_viewId");
  var _handleFocusChange = dart.privateName(_engine, "_handleFocusChange");
  var _maybeMarkViewAsFocusable = dart.privateName(_engine, "_maybeMarkViewAsFocusable");
  _engine.ViewFocusBinding = class ViewFocusBinding extends core.Object {
    static ['_#new#tearOff'](_viewManager, _onViewFocusChange) {
      if (_viewManager == null) dart.nullFailed(I[327], 10, 25, "_viewManager");
      if (_onViewFocusChange == null) dart.nullFailed(I[327], 10, 44, "_onViewFocusChange");
      return new _engine.ViewFocusBinding.new(_viewManager, _onViewFocusChange);
    }
    init() {
      let t$36584, t$36584$, t$36584$0, t$36584$1;
      t$36584 = js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body");
      t$36584 == null ? null : _engine['DomEventTargetExtension|addEventListener'](t$36584, "keydown", this[_handleKeyDown]);
      t$36584$ = js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body");
      t$36584$ == null ? null : _engine['DomEventTargetExtension|addEventListener'](t$36584$, "keyup", this[_handleKeyUp]);
      t$36584$0 = js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body");
      t$36584$0 == null ? null : _engine['DomEventTargetExtension|addEventListener'](t$36584$0, "focusin", this[_handleFocusin]);
      t$36584$1 = js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body");
      t$36584$1 == null ? null : _engine['DomEventTargetExtension|addEventListener'](t$36584$1, "focusout", this[_handleFocusout]);
      this[_onViewCreatedListener] = this[_viewManager$].onViewCreated.listen(dart.bind(this, _handleViewCreated));
    }
    dispose() {
      let t$36584, t$36584$, t$36584$0, t$36584$1, t$36584$2;
      t$36584 = js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body");
      t$36584 == null ? null : _engine['DomEventTargetExtension|removeEventListener'](t$36584, "keydown", this[_handleKeyDown]);
      t$36584$ = js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body");
      t$36584$ == null ? null : _engine['DomEventTargetExtension|removeEventListener'](t$36584$, "keyup", this[_handleKeyUp]);
      t$36584$0 = js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body");
      t$36584$0 == null ? null : _engine['DomEventTargetExtension|removeEventListener'](t$36584$0, "focusin", this[_handleFocusin]);
      t$36584$1 = js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body");
      t$36584$1 == null ? null : _engine['DomEventTargetExtension|removeEventListener'](t$36584$1, "focusout", this[_handleFocusout]);
      t$36584$2 = this[_onViewCreatedListener];
      t$36584$2 == null ? null : t$36584$2.cancel();
    }
    changeViewFocus(viewId, state) {
      let t$36584, t$36584$, t$36584$0;
      if (viewId == null) dart.nullFailed(I[327], 43, 28, "viewId");
      if (state == null) dart.nullFailed(I[327], 43, 54, "state");
      if (!dart.test(_engine.ViewFocusBinding.isEnabled)) {
        return;
      }
      let viewElement = (t$36584 = this[_viewManager$]._get(viewId), t$36584 == null ? null : t$36584.dom.rootElement);
      if (state == ui.ViewFocusState.focused) {
        if (viewId != this[_viewId](js_util.getProperty(T$9.DomElementN(), dart.jsInteropNullCheck(dart.global.document), "activeElement"))) {
          t$36584$ = viewElement;
          t$36584$ == null ? null : _engine['DomElementExtension|focus'](t$36584$, {preventScroll: true});
        }
      } else {
        t$36584$0 = viewElement;
        t$36584$0 == null ? null : t$36584$0.blur();
      }
    }
    get [_handleFocusin]() {
      let t$36585;
      if (!dart.test(this[__ViewFocusBinding__handleFocusin_isSet])) {
        let t$36584 = _engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[327], 59, 81, "event");
          T$11.DomFocusEvent()[_as](event);
          this[_handleFocusChange](T$9.DomElementN()[_as](js_util.getProperty(T$10.DomEventTargetN(), event, "target")));
        }, T$10.DomEventTovoid()));
        if (dart.test(this[__ViewFocusBinding__handleFocusin_isSet])) dart.throw(new _internal.LateError.fieldADI("_handleFocusin"));
        this[__ViewFocusBinding__handleFocusin] = t$36584;
        this[__ViewFocusBinding__handleFocusin_isSet] = true;
      }
      t$36585 = this[__ViewFocusBinding__handleFocusin];
      return t$36585;
    }
    get [_handleFocusout]() {
      let t$36586;
      if (!dart.test(this[__ViewFocusBinding__handleFocusout_isSet])) {
        let t$36585 = _engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[327], 64, 82, "event");
          T$11.DomFocusEvent()[_as](event);
          this[_handleFocusChange](T$9.DomElementN()[_as](js_util.getProperty(T$10.DomEventTargetN(), event, "relatedTarget")));
        }, T$10.DomEventTovoid()));
        if (dart.test(this[__ViewFocusBinding__handleFocusout_isSet])) dart.throw(new _internal.LateError.fieldADI("_handleFocusout"));
        this[__ViewFocusBinding__handleFocusout] = t$36585;
        this[__ViewFocusBinding__handleFocusout_isSet] = true;
      }
      t$36586 = this[__ViewFocusBinding__handleFocusout];
      return t$36586;
    }
    get [_handleKeyDown]() {
      let t$36587;
      if (!dart.test(this[__ViewFocusBinding__handleKeyDown_isSet])) {
        let t$36586 = _engine.createDomEventListener(dart.fn(event => {
          let t$36587;
          if (event == null) dart.nullFailed(I[327], 69, 81, "event");
          T$11.DomKeyboardEvent()[_as](event);
          if (dart.test((t$36587 = _engine['DomKeyboardEventExtension|get#shiftKey'](event), t$36587 == null ? false : t$36587))) {
            this[_viewFocusDirection] = ui.ViewFocusDirection.backward;
          }
        }, T$10.DomEventTovoid()));
        if (dart.test(this[__ViewFocusBinding__handleKeyDown_isSet])) dart.throw(new _internal.LateError.fieldADI("_handleKeyDown"));
        this[__ViewFocusBinding__handleKeyDown] = t$36586;
        this[__ViewFocusBinding__handleKeyDown_isSet] = true;
      }
      t$36587 = this[__ViewFocusBinding__handleKeyDown];
      return t$36587;
    }
    get [_handleKeyUp]() {
      let t$36588;
      if (!dart.test(this[__ViewFocusBinding__handleKeyUp_isSet])) {
        let t$36587 = _engine.createDomEventListener(dart.fn(event => {
          if (event == null) dart.nullFailed(I[327], 76, 79, "event");
          this[_viewFocusDirection] = ui.ViewFocusDirection.forward;
        }, T$10.DomEventTovoid()));
        if (dart.test(this[__ViewFocusBinding__handleKeyUp_isSet])) dart.throw(new _internal.LateError.fieldADI("_handleKeyUp"));
        this[__ViewFocusBinding__handleKeyUp] = t$36587;
        this[__ViewFocusBinding__handleKeyUp_isSet] = true;
      }
      t$36588 = this[__ViewFocusBinding__handleKeyUp];
      return t$36588;
    }
    [_handleFocusChange](focusedElement) {
      let t$36588;
      if (!dart.test(_engine.ViewFocusBinding.isEnabled)) {
        return;
      }
      let viewId = this[_viewId](focusedElement);
      if (viewId == this[_lastViewId]) {
        return;
      }
      let event = null;
      if (viewId == null) {
        event = new ui.ViewFocusEvent.new({viewId: dart.nullCheck(this[_lastViewId]), state: ui.ViewFocusState.unfocused, direction: ui.ViewFocusDirection.undefined});
      } else {
        event = new ui.ViewFocusEvent.new({viewId: viewId, state: ui.ViewFocusState.focused, direction: this[_viewFocusDirection]});
      }
      this[_maybeMarkViewAsFocusable](this[_lastViewId], {reachableByKeyboard: true});
      this[_maybeMarkViewAsFocusable](viewId, {reachableByKeyboard: false});
      this[_lastViewId] = viewId;
      t$36588 = event;
      this[_onViewFocusChange$](t$36588);
    }
    [_viewId](element) {
      let t$36588;
      let viewManager = _engine.EnginePlatformDispatcher.instance.viewManager;
      t$36588 = viewManager.findViewForElement(element);
      return t$36588 == null ? null : t$36588.viewId;
    }
    [_handleViewCreated](viewId) {
      if (viewId == null) dart.nullFailed(I[327], 115, 31, "viewId");
      this[_maybeMarkViewAsFocusable](viewId, {reachableByKeyboard: true});
    }
    [_maybeMarkViewAsFocusable](viewId, opts) {
      let t$36588, t$36588$, t$36588$0;
      let reachableByKeyboard = opts && 'reachableByKeyboard' in opts ? opts.reachableByKeyboard : null;
      if (reachableByKeyboard == null) dart.nullFailed(I[327], 121, 19, "reachableByKeyboard");
      if (viewId == null) {
        return;
      }
      let rootElement = (t$36588 = this[_viewManager$]._get(viewId), t$36588 == null ? null : t$36588.dom.rootElement);
      if (dart.test(_engine.EngineSemantics.instance.semanticsEnabled)) {
        t$36588$ = rootElement;
        t$36588$ == null ? null : _engine['DomElementExtension|removeAttribute'](t$36588$, "tabindex");
      } else {
        t$36588$0 = rootElement;
        t$36588$0 == null ? null : _engine['DomElementExtension|setAttribute'](t$36588$0, "tabindex", dart.test(reachableByKeyboard) ? 0 : -1);
      }
    }
  };
  (_engine.ViewFocusBinding.new = function(_viewManager, _onViewFocusChange) {
    if (_viewManager == null) dart.nullFailed(I[327], 10, 25, "_viewManager");
    if (_onViewFocusChange == null) dart.nullFailed(I[327], 10, 44, "_onViewFocusChange");
    this[_lastViewId] = null;
    this[_viewFocusDirection] = ui.ViewFocusDirection.forward;
    this[_onViewCreatedListener] = null;
    this[__ViewFocusBinding__handleFocusin] = null;
    this[__ViewFocusBinding__handleFocusin_isSet] = false;
    this[__ViewFocusBinding__handleFocusout] = null;
    this[__ViewFocusBinding__handleFocusout_isSet] = false;
    this[__ViewFocusBinding__handleKeyDown] = null;
    this[__ViewFocusBinding__handleKeyDown_isSet] = false;
    this[__ViewFocusBinding__handleKeyUp] = null;
    this[__ViewFocusBinding__handleKeyUp_isSet] = false;
    this[_viewManager$] = _viewManager;
    this[_onViewFocusChange$] = _onViewFocusChange;
    ;
  }).prototype = _engine.ViewFocusBinding.prototype;
  dart.addRtiResources(_engine.ViewFocusBinding, ["_engine|ViewFocusBinding"]);
  dart.setMethodSignature(_engine.ViewFocusBinding, () => dart.global.Object.setPrototypeOf({
    init: T$.VoidTovoid(),
    dispose: T$.VoidTovoid(),
    changeViewFocus: T$11.intAndViewFocusStateTovoid(),
    [_handleFocusChange]: T$11.DomElementNTovoid(),
    [_viewId]: T$11.DomElementNTointN(),
    [_handleViewCreated]: T$.intTovoid(),
    [_maybeMarkViewAsFocusable]: T$11.intN__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ViewFocusBinding))));
  dart.setGetterSignature(_engine.ViewFocusBinding, () => dart.global.Object.setPrototypeOf({
    [_handleFocusin]: T$9.DomEventListener(),
    [_handleFocusout]: T$9.DomEventListener(),
    [_handleKeyDown]: T$9.DomEventListener(),
    [_handleKeyUp]: T$9.DomEventListener()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ViewFocusBinding))));
  dart.setLibraryUri(_engine.ViewFocusBinding, I[220]);
  dart.setFieldSignature(_engine.ViewFocusBinding, () => dart.global.Object.setPrototypeOf({
    [_viewManager$]: {type: T$9.FlutterViewManager(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_onViewFocusChange$]: {type: T$11.ViewFocusEventTovoid(), isConst: false, isFinal: true},
    [_lastViewId]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_viewFocusDirection]: {type: T$9.ViewFocusDirection(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_onViewCreatedListener]: {type: T$10.StreamSubscriptionNOfint(), isConst: false, isFinal: false, libraryUri: I[39]},
    [__ViewFocusBinding__handleFocusin]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__ViewFocusBinding__handleFocusin_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__ViewFocusBinding__handleFocusout]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__ViewFocusBinding__handleFocusout_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__ViewFocusBinding__handleKeyDown]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__ViewFocusBinding__handleKeyDown_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__ViewFocusBinding__handleKeyUp]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__ViewFocusBinding__handleKeyUp_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ViewFocusBinding))));
  dart.setStaticFieldSignature(_engine.ViewFocusBinding, () => ['isEnabled', '_focusin', '_focusout', '_keyDown', '_keyUp']);
  dart.defineLazy(_engine.ViewFocusBinding, {
    /*_engine.ViewFocusBinding.isEnabled*/get isEnabled() {
      return false;
    },
    set isEnabled(value) {
      if (value == null) dart.nullFailed(I[327], 17, 15, "isEnabled");
    },
    /*_engine.ViewFocusBinding._focusin*/get _focusin() {
      return "focusin";
    },
    /*_engine.ViewFocusBinding._focusout*/get _focusout() {
      return "focusout";
    },
    /*_engine.ViewFocusBinding._keyDown*/get _keyDown() {
      return "keydown";
    },
    /*_engine.ViewFocusBinding._keyUp*/get _keyUp() {
      return "keyup";
    }
  }, false);
  var _factories = dart.privateName(_engine, "_factories");
  var _contents$ = dart.privateName(_engine, "_contents");
  var _invisibleViews = dart.privateName(_engine, "_invisibleViews");
  var _viewIdToType = dart.privateName(_engine, "_viewIdToType");
  var _ensureContentCorrectlySized = dart.privateName(_engine, "_ensureContentCorrectlySized");
  _engine.PlatformViewManager = class PlatformViewManager extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.PlatformViewManager.new();
    }
    knowsViewType(viewType) {
      if (viewType == null) dart.nullFailed(I[328], 52, 29, "viewType");
      return this[_factories][$containsKey](viewType);
    }
    knowsViewId(viewId) {
      if (viewId == null) dart.nullFailed(I[328], 60, 24, "viewId");
      return this[_contents$][$containsKey](viewId);
    }
    getSlottedContent(viewId) {
      if (viewId == null) dart.nullFailed(I[328], 74, 37, "viewId");
      return this[_contents$][$_get](viewId);
    }
    getViewById(viewId) {
      if (viewId == null) dart.nullFailed(I[328], 81, 30, "viewId");
      if (!dart.test(this.knowsViewId(viewId))) dart.assertFailed("No view has been rendered for viewId: " + dart.str(viewId), I[328], 82, 12, "knowsViewId(viewId)");
      return dart.nullCheck(js_util.getProperty(T$9.DomElementN(), dart.nullCheck(this[_contents$][$_get](viewId)), "firstElementChild"));
    }
    registerFactory(viewType, factoryFunction, opts) {
      if (viewType == null) dart.nullFailed(I[328], 95, 31, "viewType");
      if (factoryFunction == null) dart.nullFailed(I[328], 95, 50, "factoryFunction");
      let isVisible = opts && 'isVisible' in opts ? opts.isVisible : true;
      if (isVisible == null) dart.nullFailed(I[328], 96, 13, "isVisible");
      if (!(T$9.intToObject()[_is](factoryFunction) || T$11.int__ToObject()[_is](factoryFunction))) dart.assertFailed("Factory signature is invalid. Expected either " + "{" + dart.strSafe(dart_rti.createRuntimeType(T$11.intLToObjectL())) + "} or {" + dart.strSafe(dart_rti.createRuntimeType(T$11.intL__ToObjectL())) + "} " + "but got: {" + dart.str(dart.runtimeType(factoryFunction)) + "}", I[328], 98, 7, "factoryFunction is ui_web.PlatformViewFactory ||\n          factoryFunction is ui_web.ParameterizedPlatformViewFactory");
      if (dart.test(this[_factories][$containsKey](viewType))) {
        return false;
      }
      this[_factories][$_set](viewType, factoryFunction);
      if (!dart.test(isVisible)) {
        this[_invisibleViews].add(viewType);
      }
      return true;
    }
    renderContent(viewType, viewId, params) {
      if (viewType == null) dart.nullFailed(I[328], 136, 12, "viewType");
      if (viewId == null) dart.nullFailed(I[328], 137, 9, "viewId");
      if (!dart.test(this.knowsViewType(viewType))) dart.assertFailed("Attempted to render contents of unregistered viewType: " + dart.str(viewType), I[328], 140, 12, "knowsViewType(viewType)");
      let slotName = _engine.getPlatformViewSlotName(viewId);
      this[_viewIdToType][$_set](viewId, viewType);
      return this[_contents$][$putIfAbsent](viewId, dart.fn(() => {
        let t$36588;
        let wrapper = (t$36588 = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-platform-view"), (() => {
          _engine['DomElementExtension|set#id'](t$36588, _engine.getPlatformViewDomId(viewId));
          _engine['DomElementExtension|setAttribute'](t$36588, "slot", slotName);
          return t$36588;
        })());
        let factoryFunction = dart.nullCheck(this[_factories][$_get](viewType));
        let content = null;
        if (T$11.int__ToObject()[_is](factoryFunction)) {
          content = T$9.DomElement()[_as](factoryFunction(viewId, {params: params}));
        } else {
          T$9.intToObject()[_as](factoryFunction);
          content = T$9.DomElement()[_as](factoryFunction(viewId));
        }
        this[_ensureContentCorrectlySized](content, viewType);
        wrapper.append(content);
        return wrapper;
      }, T$10.VoidToDomElement()));
    }
    clearPlatformView(viewId) {
      let t$36588;
      if (viewId == null) dart.nullFailed(I[328], 173, 30, "viewId");
      t$36588 = this[_contents$][$remove](viewId);
      t$36588 == null ? null : t$36588.remove();
    }
    [_ensureContentCorrectlySized](content, viewType) {
      if (content == null) dart.nullFailed(I[328], 180, 48, "content");
      if (viewType == null) dart.nullFailed(I[328], 180, 64, "viewType");
      if (_engine['DomCSSStyleDeclarationExtension|get#height'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), content, "style"))[$isEmpty]) {
        _engine.printWarning("Height of Platform View type: [" + dart.str(viewType) + "] may not be set." + " Defaulting to `height: 100%`.\n" + "Set `style.height` to any appropriate value to stop this message.");
        _engine['DomCSSStyleDeclarationExtension|set#height'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), content, "style"), "100%");
      }
      if (_engine['DomCSSStyleDeclarationExtension|get#width'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), content, "style"))[$isEmpty]) {
        _engine.printWarning("Width of Platform View type: [" + dart.str(viewType) + "] may not be set." + " Defaulting to `width: 100%`.\n" + "Set `style.width` to any appropriate value to stop this message.");
        _engine['DomCSSStyleDeclarationExtension|set#width'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), content, "style"), "100%");
      }
    }
    isInvisible(viewId) {
      if (viewId == null) dart.nullFailed(I[328], 203, 24, "viewId");
      let viewType = this[_viewIdToType][$_get](viewId);
      return viewType != null && dart.test(this[_invisibleViews].contains(viewType));
    }
    isVisible(viewId) {
      if (viewId == null) dart.nullFailed(I[328], 210, 22, "viewId");
      return !dart.test(this.isInvisible(viewId));
    }
    debugClear() {
      this[_contents$][$keys][$toList]()[$forEach](dart.bind(this, 'clearPlatformView'));
      this[_factories][$clear]();
      this[_contents$][$clear]();
      this[_invisibleViews].clear();
      this[_viewIdToType][$clear]();
    }
  };
  (_engine.PlatformViewManager.new = function() {
    this[_factories] = new (G$.IdentityMapOfString$Function()).new();
    this[_contents$] = new (G$.IdentityMapOfint$DomElement()).new();
    this[_invisibleViews] = G$.LinkedHashSetOfString().new();
    this[_viewIdToType] = new (G$.IdentityMapOfint$String()).new();
    this.registerFactory(ui_web.PlatformViewRegistry.defaultVisibleViewType, C[917] || CT.C917);
    this.registerFactory(ui_web.PlatformViewRegistry.defaultInvisibleViewType, C[917] || CT.C917, {isVisible: false});
  }).prototype = _engine.PlatformViewManager.prototype;
  dart.addRtiResources(_engine.PlatformViewManager, ["_engine|PlatformViewManager"]);
  dart.setMethodSignature(_engine.PlatformViewManager, () => dart.global.Object.setPrototypeOf({
    knowsViewType: T$.StringTobool(),
    knowsViewId: T$.intTobool(),
    getSlottedContent: T$11.intToDomElementN(),
    getViewById: T$11.intToDomElement(),
    registerFactory: T$9.StringAndFunction__Tobool(),
    renderContent: T$11.StringAndintAndObjectNToDomElement(),
    clearPlatformView: T$.intTovoid(),
    [_ensureContentCorrectlySized]: T$11.DomElementAndStringTovoid(),
    isInvisible: T$.intTobool(),
    isVisible: T$.intTobool(),
    debugClear: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PlatformViewManager))));
  dart.setLibraryUri(_engine.PlatformViewManager, I[220]);
  dart.setFieldSignature(_engine.PlatformViewManager, () => dart.global.Object.setPrototypeOf({
    [_factories]: {type: T$6.MapOfString$Function(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_contents$]: {type: T$11.MapOfint$DomElement(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_invisibleViews]: {type: T$6.SetOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_viewIdToType]: {type: T$11.MapOfint$String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformViewManager))));
  dart.setStaticFieldSignature(_engine.PlatformViewManager, () => ['instance']);
  dart.defineLazy(_engine.PlatformViewManager, {
    /*_engine.PlatformViewManager.instance*/get instance() {
      return new _engine.PlatformViewManager.new();
    },
    set instance(value) {
      if (value == null) dart.nullFailed(I[328], 38, 30, "instance");
    }
  }, false);
  var _codec$ = dart.privateName(_engine, "_codec");
  var StandardMethodCodec_messageCodec = dart.privateName(_engine, "StandardMethodCodec.messageCodec");
  var _contentManager = dart.privateName(_engine, "_contentManager");
  var _createPlatformView = dart.privateName(_engine, "_createPlatformView");
  var _disposePlatformView = dart.privateName(_engine, "_disposePlatformView");
  _engine.PlatformViewMessageHandler = class PlatformViewMessageHandler extends core.Object {
    static ['_#new#tearOff'](opts) {
      let contentManager = opts && 'contentManager' in opts ? opts.contentManager : null;
      if (contentManager == null) dart.nullFailed(I[329], 38, 34, "contentManager");
      return new _engine.PlatformViewMessageHandler.new({contentManager: contentManager});
    }
    [_createPlatformView](callback, opts) {
      if (callback == null) dart.nullFailed(I[329], 68, 38, "callback");
      let platformViewId = opts && 'platformViewId' in opts ? opts.platformViewId : null;
      if (platformViewId == null) dart.nullFailed(I[329], 69, 18, "platformViewId");
      let platformViewType = opts && 'platformViewType' in opts ? opts.platformViewType : null;
      if (platformViewType == null) dart.nullFailed(I[329], 70, 21, "platformViewType");
      let params = opts && 'params' in opts ? opts.params : null;
      if (!dart.test(this[_contentManager].knowsViewType(platformViewType))) {
        callback(this[_codec$].encodeErrorEnvelope({code: "unregistered_view_type", message: "A HtmlElementView widget is trying to create a platform view " + "with an unregistered type: <" + dart.str(platformViewType) + ">.", details: "If you are the author of the PlatformView, make sure `registerViewFactory` is invoked."}));
        return;
      }
      if (dart.test(this[_contentManager].knowsViewId(platformViewId))) {
        callback(this[_codec$].encodeErrorEnvelope({code: "recreating_view", message: "trying to create an already created view", details: "view id: " + dart.str(platformViewId)}));
        return;
      }
      this[_contentManager].renderContent(platformViewType, platformViewId, params);
      callback(this[_codec$].encodeSuccessEnvelope(null));
    }
    [_disposePlatformView](callback, opts) {
      if (callback == null) dart.nullFailed(I[329], 113, 38, "callback");
      let platformViewId = opts && 'platformViewId' in opts ? opts.platformViewId : null;
      if (platformViewId == null) dart.nullFailed(I[329], 114, 18, "platformViewId");
      this[_contentManager].clearPlatformView(platformViewId);
      callback(this[_codec$].encodeSuccessEnvelope(null));
    }
    handlePlatformViewCall(method, $arguments, callback) {
      if (method == null) dart.nullFailed(I[329], 129, 12, "method");
      if (callback == null) dart.nullFailed(I[329], 131, 38, "callback");
      switch (method) {
        case "create":
          {
            T$.Map()[_as]($arguments);
            this[_createPlatformView](callback, {platformViewId: _engine['JsonExtensions|readInt']($arguments, "id"), platformViewType: _engine['JsonExtensions|readString']($arguments, "viewType"), params: $arguments[$_get]("params")});
            return;
          }
        case "dispose":
          {
            this[_disposePlatformView](callback, {platformViewId: T$.int()[_as]($arguments)});
            return;
          }
      }
      callback(null);
    }
  };
  (_engine.PlatformViewMessageHandler.new = function(opts) {
    let contentManager = opts && 'contentManager' in opts ? opts.contentManager : null;
    if (contentManager == null) dart.nullFailed(I[329], 38, 34, "contentManager");
    this[_codec$] = C[918] || CT.C918;
    this[_contentManager] = contentManager;
    ;
  }).prototype = _engine.PlatformViewMessageHandler.prototype;
  dart.addRtiResources(_engine.PlatformViewMessageHandler, ["_engine|PlatformViewMessageHandler"]);
  dart.setMethodSignature(_engine.PlatformViewMessageHandler, () => dart.global.Object.setPrototypeOf({
    [_createPlatformView]: T$11.Fn__Tovoid(),
    [_disposePlatformView]: T$11.Fn__Tovoid$1(),
    handlePlatformViewCall: T$11.StringAnddynamicAndFnTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PlatformViewMessageHandler))));
  dart.setLibraryUri(_engine.PlatformViewMessageHandler, I[220]);
  dart.setFieldSignature(_engine.PlatformViewMessageHandler, () => dart.global.Object.setPrototypeOf({
    [_codec$]: {type: T$11.MethodCodec(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_contentManager]: {type: T$11.PlatformViewManager(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformViewMessageHandler))));
  dart.setStaticFieldSignature(_engine.PlatformViewMessageHandler, () => ['channelName', 'instance']);
  dart.defineLazy(_engine.PlatformViewMessageHandler, {
    /*_engine.PlatformViewMessageHandler.channelName*/get channelName() {
      return "flutter/platform_views";
    },
    /*_engine.PlatformViewMessageHandler.instance*/get instance() {
      return new _engine.PlatformViewMessageHandler.new({contentManager: _engine.PlatformViewManager.instance});
    },
    set instance(value) {
      if (value == null) dart.nullFailed(I[329], 47, 37, "instance");
    }
  }, false);
  var _listener = dart.privateName(_engine, "_listener");
  _engine.SafariPointerEventWorkaround = class SafariPointerEventWorkaround extends core.Object {
    static ['_#_#tearOff']() {
      return new _engine.SafariPointerEventWorkaround.__();
    }
    workAroundMissingPointerEvents() {
      if (this[_listener] == null) {
        this[_listener] = _engine.createDomEventListener(dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[330], 71, 43, "_");
        }, T$10.DomEventTovoid()));
        _engine['DomEventTargetExtension|addEventListener'](dart.jsInteropNullCheck(dart.global.document), "touchstart", this[_listener]);
      }
    }
    dispose() {
      if (this[_listener] != null) {
        _engine['DomEventTargetExtension|removeEventListener'](dart.jsInteropNullCheck(dart.global.document), "touchstart", this[_listener]);
        this[_listener] = null;
      }
    }
  };
  (_engine.SafariPointerEventWorkaround.__ = function() {
    this[_listener] = null;
    ;
  }).prototype = _engine.SafariPointerEventWorkaround.prototype;
  dart.addRtiResources(_engine.SafariPointerEventWorkaround, ["_engine|SafariPointerEventWorkaround"]);
  dart.setMethodSignature(_engine.SafariPointerEventWorkaround, () => dart.global.Object.setPrototypeOf({
    workAroundMissingPointerEvents: T$.VoidTovoid(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SafariPointerEventWorkaround))));
  dart.setLibraryUri(_engine.SafariPointerEventWorkaround, I[220]);
  dart.setFieldSignature(_engine.SafariPointerEventWorkaround, () => dart.global.Object.setPrototypeOf({[_listener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SafariPointerEventWorkaround))));
  var view$1 = dart.privateName(_engine, "PointerBinding.view");
  var _safariWorkaround = dart.privateName(_engine, "_safariWorkaround");
  var _keyboardConverter = dart.privateName(_engine, "_keyboardConverter");
  var __PointerBinding__adapter = dart.privateName(_engine, "_#PointerBinding#_adapter");
  var __PointerBinding__adapter_isSet = dart.privateName(_engine, "_#PointerBinding#_adapter#isSet");
  var _pointerDataConverter = dart.privateName(_engine, "_pointerDataConverter");
  var _detector = dart.privateName(_engine, "_detector");
  var _adapter = dart.privateName(_engine, "_adapter");
  var _createAdapter = dart.privateName(_engine, "_createAdapter");
  _engine.PointerBinding = class PointerBinding extends core.Object {
    get view() {
      return this[view$1];
    }
    set view(value) {
      super.view = value;
    }
    static ['_#new#tearOff'](view, opts) {
      if (view == null) dart.nullFailed(I[330], 86, 10, "view");
      let detector = opts && 'detector' in opts ? opts.detector : C[919] || CT.C919;
      if (detector == null) dart.nullFailed(I[330], 87, 28, "detector");
      let safariWorkaround = opts && 'safariWorkaround' in opts ? opts.safariWorkaround : null;
      return new _engine.PointerBinding.new(view, {detector: detector, safariWorkaround: safariWorkaround});
    }
    static debugResetGlobalState() {
      _engine.PointerBinding.clickDebouncer.reset();
      _engine.PointerDataConverter.globalPointerState.reset();
    }
    dispose() {
      let t$36588;
      this[_adapter].dispose();
      t$36588 = this[_safariWorkaround];
      t$36588 == null ? null : t$36588.dispose();
    }
    get rootElement() {
      return this.view.dom.rootElement;
    }
    get [_adapter]() {
      let t$36588;
      return dart.test(this[__PointerBinding__adapter_isSet]) ? (t$36588 = this[__PointerBinding__adapter], t$36588) : dart.throw(new _internal.LateError.fieldNI("_adapter"));
    }
    set [_adapter](_adapter$35param) {
      if (_adapter$35param == null) dart.nullFailed(I[330], 128, 21, "_adapter#param");
      this[__PointerBinding__adapter_isSet] = true;
      this[__PointerBinding__adapter] = _adapter$35param;
    }
    debugOverrideKeyboardConverter(keyboardConverter) {
      this[_keyboardConverter] = keyboardConverter;
    }
    [_createAdapter]() {
      if (dart.test(this[_detector].hasPointerEvents)) {
        return new _engine._PointerAdapter.new(this);
      }
      dart.throw(new core.UnsupportedError.new("This browser does not support pointer events which are necessary to handle interactions with Flutter Web apps."));
    }
  };
  (_engine.PointerBinding.new = function(view, opts) {
    let t$36588, t$36588$;
    if (view == null) dart.nullFailed(I[330], 86, 10, "view");
    let detector = opts && 'detector' in opts ? opts.detector : C[919] || CT.C919;
    if (detector == null) dart.nullFailed(I[330], 87, 28, "detector");
    let safariWorkaround = opts && 'safariWorkaround' in opts ? opts.safariWorkaround : null;
    this[_safariWorkaround] = null;
    this[_keyboardConverter] = (t$36588 = _engine.KeyboardBinding.instance, t$36588 == null ? null : t$36588.converter);
    this[__PointerBinding__adapter] = null;
    this[__PointerBinding__adapter_isSet] = false;
    this[view$1] = view;
    this[_pointerDataConverter] = new _engine.PointerDataConverter.new();
    this[_detector] = detector;
    if (dart.test(_engine.isIosSafari)) {
      this[_safariWorkaround] = (t$36588$ = safariWorkaround, t$36588$ == null ? _engine.PointerBinding._defaultSafariWorkaround : t$36588$);
      dart.nullCheck(this[_safariWorkaround]).workAroundMissingPointerEvents();
    }
    this[_adapter] = this[_createAdapter]();
    if (!dart.test(dart.fn(() => {
      _engine.registerHotRestartListener(dart.bind(this, 'dispose'));
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[330], 96, 12, "() {\n      registerHotRestartListener(dispose);\n      return true;\n    }()");
  }).prototype = _engine.PointerBinding.prototype;
  dart.addRtiResources(_engine.PointerBinding, ["_engine|PointerBinding"]);
  dart.setMethodSignature(_engine.PointerBinding, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    debugOverrideKeyboardConverter: T$11.KeyboardConverterNTovoid(),
    [_createAdapter]: T$11.VoidTo_BaseAdapter()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PointerBinding))));
  dart.setStaticMethodSignature(_engine.PointerBinding, () => ['debugResetGlobalState']);
  dart.setGetterSignature(_engine.PointerBinding, () => dart.global.Object.setPrototypeOf({
    rootElement: T$9.DomElement(),
    [_adapter]: T$11._BaseAdapter()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PointerBinding))));
  dart.setSetterSignature(_engine.PointerBinding, () => dart.global.Object.setPrototypeOf({[_adapter]: T$11._BaseAdapter()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.PointerBinding))));
  dart.setLibraryUri(_engine.PointerBinding, I[220]);
  dart.setFieldSignature(_engine.PointerBinding, () => dart.global.Object.setPrototypeOf({
    [_safariWorkaround]: {type: T$11.SafariPointerEventWorkaroundN(), isConst: false, isFinal: false, libraryUri: I[220]},
    view: {type: T$10.EngineFlutterView(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_detector]: {type: T$11.PointerSupportDetector(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_pointerDataConverter]: {type: T$11.PointerDataConverter(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_keyboardConverter]: {type: T$11.KeyboardConverterN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__PointerBinding__adapter]: {type: T$11._BaseAdapterN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__PointerBinding__adapter_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PointerBinding))));
  dart.setStaticFieldSignature(_engine.PointerBinding, () => ['_defaultSafariWorkaround', 'clickDebouncer']);
  dart.defineLazy(_engine.PointerBinding, {
    /*_engine.PointerBinding._defaultSafariWorkaround*/get _defaultSafariWorkaround() {
      return new _engine.SafariPointerEventWorkaround.__();
    },
    /*_engine.PointerBinding.clickDebouncer*/get clickDebouncer() {
      return new _engine.ClickDebouncer.new();
    }
  }, false);
  var _lastSentPointerUpTimeStamp = dart.privateName(_engine, "_lastSentPointerUpTimeStamp");
  var _sendToFramework = dart.privateName(_engine, "_sendToFramework");
  var _debounce = dart.privateName(_engine, "_debounce");
  var _startDebouncing = dart.privateName(_engine, "_startDebouncing");
  var _shouldSendClickEventToFramework = dart.privateName(_engine, "_shouldSendClickEventToFramework");
  var _sendSemanticsTapToFramework = dart.privateName(_engine, "_sendSemanticsTapToFramework");
  var _flush$ = dart.privateName(_engine, "_flush");
  var _onTimerExpired = dart.privateName(_engine, "_onTimerExpired");
  _engine.ClickDebouncer = class ClickDebouncer extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.ClickDebouncer.new();
    }
    get debugState() {
      return this[_state$0];
    }
    get isDebouncing() {
      return this[_state$0] != null;
    }
    onPointerData(event, data) {
      if (event == null) dart.nullFailed(I[330], 223, 31, "event");
      if (data == null) dart.nullFailed(I[330], 223, 59, "data");
      if (!dart.test(_engine.EnginePlatformDispatcher.instance.semanticsEnabled)) {
        this[_sendToFramework](event, data);
        return;
      }
      if (dart.test(this.isDebouncing)) {
        this[_debounce](event, data);
      } else if (_engine['DomEventExtension|get#type'](event) === "pointerdown") {
        this[_startDebouncing](event, data);
      } else {
        if (_engine['DomEventExtension|get#type'](event) === "pointerup") {
          this[_lastSentPointerUpTimeStamp] = _engine._BaseAdapter._eventTimeStampToDuration(dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](event)));
        }
        this[_sendToFramework](event, data);
      }
    }
    onClick(click, semanticsNodeId, isListening) {
      if (click == null) dart.nullFailed(I[330], 251, 25, "click");
      if (semanticsNodeId == null) dart.nullFailed(I[330], 251, 36, "semanticsNodeId");
      if (isListening == null) dart.nullFailed(I[330], 251, 58, "isListening");
      if (!(_engine['DomEventExtension|get#type'](click) === "click")) dart.assertFailed(null, I[330], 252, 12, "click.type == 'click'");
      if (!dart.test(this.isDebouncing)) {
        if (dart.test(isListening) && dart.test(this[_shouldSendClickEventToFramework](click))) {
          this[_sendSemanticsTapToFramework](click, semanticsNodeId);
        }
        return;
      }
      if (dart.test(isListening)) {
        let state = dart.nullCheck(this[_state$0]);
        this[_state$0] = null;
        state.timer.cancel();
        this[_sendSemanticsTapToFramework](click, semanticsNodeId);
      } else {
        this[_flush$]();
      }
    }
    [_sendSemanticsTapToFramework](click, semanticsNodeId) {
      if (click == null) dart.nullFailed(I[330], 281, 46, "click");
      if (semanticsNodeId == null) dart.nullFailed(I[330], 281, 57, "semanticsNodeId");
      click.stopPropagation();
      _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(semanticsNodeId, ui.SemanticsAction.tap, null);
      this.reset();
    }
    [_startDebouncing](event, data) {
      let t$36589, t$36588, t$36588$;
      if (event == null) dart.nullFailed(I[330], 296, 34, "event");
      if (data == null) dart.nullFailed(I[330], 296, 62, "data");
      if (!(this[_state$0] == null)) dart.assertFailed("Cannot start debouncing. Already debouncing.", I[330], 298, 7, "_state == null");
      if (!(_engine['DomEventExtension|get#type'](event) === "pointerdown")) dart.assertFailed("Click debouncing must begin with a pointerdown", I[330], 302, 7, "event.type == 'pointerdown'");
      let target = js_util.getProperty(T$10.DomEventTargetN(), event, "target");
      if (T$9.DomElement()[_is](target) && dart.test(_engine['DomElementExtension|hasAttribute'](target, "flt-tappable"))) {
        this[_state$0] = (t$36588$ = async.Timer.new(C[920] || CT.C920, dart.bind(this, _onTimerExpired)), dart.recordLiteral("3;queue,target,timer", 0, ["queue", "target", "timer"], [G$.JSArrayOfRecOf__().of([(t$36588 = event, t$36589 = _engine._BaseAdapter._eventTimeStampToDuration(dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](event))), dart.recordLiteral("3;data,event,timeStamp", 0, ["data", "event", "timeStamp"], [data, t$36588, t$36589]))]), target, t$36588$]));
      } else {
        this[_sendToFramework](event, data);
      }
    }
    [_debounce](event, data) {
      let t$36589, t$36588;
      if (event == null) dart.nullFailed(I[330], 334, 27, "event");
      if (data == null) dart.nullFailed(I[330], 334, 55, "data");
      if (!(this[_state$0] != null)) dart.assertFailed("Cannot debounce event. Debouncing state not established by _startDebouncing.", I[330], 336, 7, "_state != null");
      let state = dart.nullCheck(this[_state$0]);
      state.queue[$add]((t$36588 = event, t$36589 = _engine._BaseAdapter._eventTimeStampToDuration(dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](event))), dart.recordLiteral("3;data,event,timeStamp", 0, ["data", "event", "timeStamp"], [data, t$36588, t$36589])));
      if (_engine['DomEventExtension|get#type'](event) === "pointerup") {
        let targetChanged = !dart.equals(js_util.getProperty(T$10.DomEventTargetN(), event, "target"), state.target);
        if (targetChanged) {
          this[_flush$]();
        }
      }
    }
    [_onTimerExpired]() {
      if (!dart.test(this.isDebouncing)) {
        return;
      }
      this[_flush$]();
    }
    [_shouldSendClickEventToFramework](click) {
      if (click == null) dart.nullFailed(I[330], 367, 50, "click");
      let lastSentPointerUpTimeStamp = this[_lastSentPointerUpTimeStamp];
      if (lastSentPointerUpTimeStamp == null) {
        return true;
      }
      let clickTimeStamp = _engine._BaseAdapter._eventTimeStampToDuration(dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](click)));
      let delta = clickTimeStamp['-'](lastSentPointerUpTimeStamp);
      return delta['>='](C[921] || CT.C921);
    }
    [_flush$]() {
      if (!(this[_state$0] != null)) dart.assertFailed(null, I[330], 381, 12, "_state != null");
      let state = dart.nullCheck(this[_state$0]);
      state.timer.cancel();
      let aggregateData = G$.JSArrayOfPointerData().of([]);
      for (let queuedEvent of state.queue) {
        if (_engine['DomEventExtension|get#type'](queuedEvent.event) === "pointerup") {
          this[_lastSentPointerUpTimeStamp] = queuedEvent.timeStamp;
        }
        aggregateData[$addAll](queuedEvent.data);
      }
      this[_sendToFramework](null, aggregateData);
      this[_state$0] = null;
    }
    [_sendToFramework](event, data) {
      if (data == null) dart.nullFailed(I[330], 398, 63, "data");
      let packet = new ui.PointerDataPacket.new({data: data[$toList]()});
      ;
      _engine.EnginePlatformDispatcher.instance.invokeOnPointerDataPacket(packet);
    }
    reset() {
      let t$36588;
      t$36588 = this[_state$0];
      t$36588 == null ? null : t$36588.timer.cancel();
      this[_state$0] = null;
      this[_lastSentPointerUpTimeStamp] = null;
    }
  };
  (_engine.ClickDebouncer.new = function() {
    this[_state$0] = null;
    this[_lastSentPointerUpTimeStamp] = null;
    if (!dart.test(dart.fn(() => {
      _engine.registerHotRestartListener(dart.bind(this, 'reset'));
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[330], 183, 12, "() {\n      registerHotRestartListener(reset);\n      return true;\n    }()");
  }).prototype = _engine.ClickDebouncer.prototype;
  dart.addRtiResources(_engine.ClickDebouncer, ["_engine|ClickDebouncer"]);
  dart.setMethodSignature(_engine.ClickDebouncer, () => dart.global.Object.setPrototypeOf({
    onPointerData: T$11.DomEventAndListOfPointerDataTovoid(),
    onClick: T$11.DomEventAndintAndboolTovoid(),
    [_sendSemanticsTapToFramework]: T$11.DomEventAndintTovoid(),
    [_startDebouncing]: T$11.DomEventAndListOfPointerDataTovoid(),
    [_debounce]: T$11.DomEventAndListOfPointerDataTovoid(),
    [_onTimerExpired]: T$.VoidTovoid(),
    [_shouldSendClickEventToFramework]: T$11.DomEventTobool(),
    [_flush$]: T$.VoidTovoid(),
    [_sendToFramework]: T$11.DomEventNAndListOfPointerDataTovoid(),
    reset: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ClickDebouncer))));
  dart.setGetterSignature(_engine.ClickDebouncer, () => dart.global.Object.setPrototypeOf({
    debugState: T$11.RecNOf__$1(),
    isDebouncing: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ClickDebouncer))));
  dart.setLibraryUri(_engine.ClickDebouncer, I[220]);
  dart.setFieldSignature(_engine.ClickDebouncer, () => dart.global.Object.setPrototypeOf({
    [_state$0]: {type: T$11.RecNOf__$1(), isConst: false, isFinal: false},
    [_lastSentPointerUpTimeStamp]: {type: T$1.DurationN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ClickDebouncer))));
  _engine.PointerSupportDetector = class PointerSupportDetector extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.PointerSupportDetector.new();
    }
    get hasPointerEvents() {
      return _engine.hasJsProperty(dart.jsInteropNullCheck(dart.global.window), "PointerEvent");
    }
    toString() {
      return "pointers:" + dart.str(this.hasPointerEvents);
    }
  };
  (_engine.PointerSupportDetector.new = function() {
    ;
  }).prototype = _engine.PointerSupportDetector.prototype;
  dart.addRtiResources(_engine.PointerSupportDetector, ["_engine|PointerSupportDetector"]);
  dart.setGetterSignature(_engine.PointerSupportDetector, () => dart.global.Object.setPrototypeOf({hasPointerEvents: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PointerSupportDetector))));
  dart.setLibraryUri(_engine.PointerSupportDetector, I[220]);
  dart.defineExtensionMethods(_engine.PointerSupportDetector, ['toString']);
  var event$ = dart.privateName(_engine, "Listener.event");
  var target$0 = dart.privateName(_engine, "Listener.target");
  var handler$ = dart.privateName(_engine, "Listener.handler");
  _engine.Listener = class Listener extends core.Object {
    get event() {
      return this[event$];
    }
    set event(value) {
      super.event = value;
    }
    get target() {
      return this[target$0];
    }
    set target(value) {
      super.target = value;
    }
    get handler() {
      return this[handler$];
    }
    set handler(value) {
      super.handler = value;
    }
    static ['_#_#tearOff'](opts) {
      let event = opts && 'event' in opts ? opts.event : null;
      if (event == null) dart.nullFailed(I[330], 432, 19, "event");
      let target = opts && 'target' in opts ? opts.target : null;
      if (target == null) dart.nullFailed(I[330], 433, 19, "target");
      let handler = opts && 'handler' in opts ? opts.handler : null;
      if (handler == null) dart.nullFailed(I[330], 434, 19, "handler");
      return new _engine.Listener.__({event: event, target: target, handler: handler});
    }
    static register(opts) {
      let event = opts && 'event' in opts ? opts.event : null;
      if (event == null) dart.nullFailed(I[330], 447, 21, "event");
      let target = opts && 'target' in opts ? opts.target : null;
      if (target == null) dart.nullFailed(I[330], 448, 29, "target");
      let handler = opts && 'handler' in opts ? opts.handler : null;
      if (handler == null) dart.nullFailed(I[330], 449, 35, "handler");
      let passive = opts && 'passive' in opts ? opts.passive : null;
      let jsHandler = _engine.createDomEventListener(handler);
      if (passive == null) {
        _engine['DomEventTargetExtension|addEventListener'](target, event, jsHandler);
      } else {
        let eventOptions = new (G.IdentityMapOfString$Object()).from(["passive", passive]);
        _engine['DomEventTargetExtension|addEventListenerWithOptions'](target, event, jsHandler, eventOptions);
      }
      let listener = new _engine.Listener.__({event: event, target: target, handler: jsHandler});
      return listener;
    }
    static ['_#register#tearOff'](opts) {
      let event = opts && 'event' in opts ? opts.event : null;
      if (event == null) dart.nullFailed(I[330], 447, 21, "event");
      let target = opts && 'target' in opts ? opts.target : null;
      if (target == null) dart.nullFailed(I[330], 448, 29, "target");
      let handler = opts && 'handler' in opts ? opts.handler : null;
      if (handler == null) dart.nullFailed(I[330], 449, 35, "handler");
      let passive = opts && 'passive' in opts ? opts.passive : null;
      return _engine.Listener.register({event: event, target: target, handler: handler, passive: passive});
    }
    unregister() {
      _engine['DomEventTargetExtension|removeEventListener'](this.target, this.event, this.handler);
    }
  };
  (_engine.Listener.__ = function(opts) {
    let event = opts && 'event' in opts ? opts.event : null;
    if (event == null) dart.nullFailed(I[330], 432, 19, "event");
    let target = opts && 'target' in opts ? opts.target : null;
    if (target == null) dart.nullFailed(I[330], 433, 19, "target");
    let handler = opts && 'handler' in opts ? opts.handler : null;
    if (handler == null) dart.nullFailed(I[330], 434, 19, "handler");
    this[event$] = event;
    this[target$0] = target;
    this[handler$] = handler;
    ;
  }).prototype = _engine.Listener.prototype;
  dart.addRtiResources(_engine.Listener, ["_engine|Listener"]);
  dart.setMethodSignature(_engine.Listener, () => dart.global.Object.setPrototypeOf({unregister: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Listener))));
  dart.setStaticMethodSignature(_engine.Listener, () => ['register']);
  dart.setLibraryUri(_engine.Listener, I[220]);
  dart.setFieldSignature(_engine.Listener, () => dart.global.Object.setPrototypeOf({
    event: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    target: {type: T$10.DomEventTarget(), isConst: false, isFinal: true, libraryUri: I[220]},
    handler: {type: T$9.DomEventListener(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Listener))));
  var _lastWheelEvent = dart.privateName(_engine, "_lastWheelEvent");
  var _lastWheelEventWasTrackpad = dart.privateName(_engine, "_lastWheelEventWasTrackpad");
  var _lastWheelEventAllowedDefault = dart.privateName(_engine, "_lastWheelEventAllowedDefault");
  var _owner$ = dart.privateName(_engine, "_owner");
  var _view = dart.privateName(_engine, "_view");
  var _callback = dart.privateName(_engine, "_callback");
  var _viewTarget = dart.privateName(_engine, "_viewTarget");
  var _globalTarget = dart.privateName(_engine, "_globalTarget");
  _engine._BaseAdapter = class _BaseAdapter extends core.Object {
    get [_view]() {
      return this[_owner$].view;
    }
    get [_callback]() {
      return dart.bind(_engine.PointerBinding.clickDebouncer, 'onPointerData');
    }
    get [_pointerDataConverter]() {
      return this[_owner$][_pointerDataConverter];
    }
    get [_keyboardConverter]() {
      return this[_owner$][_keyboardConverter];
    }
    get [_viewTarget]() {
      return this[_view].dom.rootElement;
    }
    get [_globalTarget]() {
      return this[_view].embeddingStrategy.globalEventTarget;
    }
    dispose() {
      for (let listener of this[_listeners]) {
        listener.unregister();
      }
      this[_listeners][$clear]();
    }
    addEventListener(target, eventName, handler) {
      if (target == null) dart.nullFailed(I[330], 521, 20, "target");
      if (eventName == null) dart.nullFailed(I[330], 522, 12, "eventName");
      if (handler == null) dart.nullFailed(I[330], 523, 26, "handler");
      function loggedHandler(event) {
        if (event == null) dart.nullFailed(I[330], 525, 35, "event");
        ;
        if (dart.test(_engine.EngineSemantics.instance.receiveGlobalEvent(event))) {
          handler(event);
        }
      }
      dart.fn(loggedHandler, T$10.DomEventTovoid());
      this[_listeners][$add](_engine.Listener.register({event: eventName, target: target, handler: loggedHandler}));
    }
    static _eventTimeStampToDuration(milliseconds) {
      if (milliseconds == null) dart.nullFailed(I[330], 553, 49, "milliseconds");
      let ms = milliseconds[$toInt]();
      let micro = ((dart.notNull(milliseconds) - ms) * 1000)[$toInt]();
      return new core.Duration.new({milliseconds: ms, microseconds: micro});
    }
  };
  (_engine._BaseAdapter.new = function(_owner) {
    if (_owner == null) dart.nullFailed(I[330], 483, 21, "_owner");
    this[_listeners] = G$.JSArrayOfListener().of([]);
    this[_lastWheelEvent] = null;
    this[_lastWheelEventWasTrackpad] = false;
    this[_lastWheelEventAllowedDefault] = false;
    this[_owner$] = _owner;
    this.setup();
  }).prototype = _engine._BaseAdapter.prototype;
  dart.addRtiResources(_engine._BaseAdapter, ["_engine|_BaseAdapter"]);
  dart.setMethodSignature(_engine._BaseAdapter, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    addEventListener: T$11.DomEventTargetAndStringAndFnTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._BaseAdapter))));
  dart.setStaticMethodSignature(_engine._BaseAdapter, () => ['_eventTimeStampToDuration']);
  dart.setGetterSignature(_engine._BaseAdapter, () => dart.global.Object.setPrototypeOf({
    [_view]: T$10.EngineFlutterView(),
    [_callback]: T$11.DomEventAndListOfPointerDataTovoid(),
    [_pointerDataConverter]: T$11.PointerDataConverter(),
    [_keyboardConverter]: T$11.KeyboardConverterN(),
    [_viewTarget]: T$9.DomElement(),
    [_globalTarget]: T$10.DomEventTarget()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._BaseAdapter))));
  dart.setLibraryUri(_engine._BaseAdapter, I[220]);
  dart.setFieldSignature(_engine._BaseAdapter, () => dart.global.Object.setPrototypeOf({
    [_owner$]: {type: T$11.PointerBinding(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_listeners]: {type: T$11.ListOfListener(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_lastWheelEvent]: {type: T$11.DomWheelEventN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_lastWheelEventWasTrackpad]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lastWheelEventAllowedDefault]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._BaseAdapter))));
  var _isAcceleratedMouseWheelDelta = dart.privateName(_engine, "_isAcceleratedMouseWheelDelta");
  var _isTrackpadEvent = dart.privateName(_engine, "_isTrackpadEvent");
  var _computeDefaultScrollLineHeight = dart.privateName(_engine, "_computeDefaultScrollLineHeight");
  var _convertWheelEventToPointerData = dart.privateName(_engine, "_convertWheelEventToPointerData");
  var _addWheelEventListener = dart.privateName(_engine, "_addWheelEventListener");
  var _handleWheelEvent = dart.privateName(_engine, "_handleWheelEvent");
  _engine._WheelEventListenerMixin = class _WheelEventListenerMixin extends _engine._BaseAdapter {};
  _engine._WheelEventListenerMixin[dart.mixinOn] = _BaseAdapter => class _WheelEventListenerMixin extends _BaseAdapter {
    [_isAcceleratedMouseWheelDelta](delta, wheelDelta) {
      if (delta == null) dart.nullFailed(I[330], 564, 42, "delta");
      if (wheelDelta == null) {
        return false;
      }
      return (dart.notNull(wheelDelta) - -3 * dart.notNull(delta))[$abs]() > 1;
    }
    [_isTrackpadEvent](event) {
      let t$36588, t$36588$, t$36588$0, t$36588$1, t$36588$2, t$36588$3, t$36588$4;
      if (event == null) dart.nullFailed(I[330], 579, 39, "event");
      if (ui_web.browser.browserEngine == ui_web.BrowserEngine.firefox) {
        return false;
      }
      if (dart.test(this[_isAcceleratedMouseWheelDelta](_engine['DomWheelEventExtension|get#deltaX'](event), _engine['DomWheelEventExtension|get#wheelDeltaX'](event))) || dart.test(this[_isAcceleratedMouseWheelDelta](_engine['DomWheelEventExtension|get#deltaY'](event), _engine['DomWheelEventExtension|get#wheelDeltaY'](event)))) {
        return false;
      }
      if (_engine['DomWheelEventExtension|get#deltaX'](event)[$modulo](120) === 0 && _engine['DomWheelEventExtension|get#deltaY'](event)[$modulo](120) === 0 || (t$36588 = _engine['DomWheelEventExtension|get#wheelDeltaX'](event), t$36588 == null ? 1.0 : t$36588)[$modulo](120) === 0 && (t$36588$ = _engine['DomWheelEventExtension|get#wheelDeltaY'](event), t$36588$ == null ? 1.0 : t$36588$)[$modulo](120) === 0) {
        let deltaXChange = (dart.notNull(_engine['DomWheelEventExtension|get#deltaX'](event)) - dart.notNull((t$36588$1 = (t$36588$0 = this[_lastWheelEvent], t$36588$0 == null ? null : _engine['DomWheelEventExtension|get#deltaX'](t$36588$0)), t$36588$1 == null ? 0 : t$36588$1)))[$abs]();
        let deltaYChange = (dart.notNull(_engine['DomWheelEventExtension|get#deltaY'](event)) - dart.notNull((t$36588$3 = (t$36588$2 = this[_lastWheelEvent], t$36588$2 == null ? null : _engine['DomWheelEventExtension|get#deltaY'](t$36588$2)), t$36588$3 == null ? 0 : t$36588$3)))[$abs]();
        if (this[_lastWheelEvent] == null || deltaXChange === 0 && deltaYChange === 0 || !(deltaXChange < 20 && deltaYChange < 20)) {
          if (_engine['DomEventExtension|get#timeStamp'](event) != null && (t$36588$4 = this[_lastWheelEvent], t$36588$4 == null ? null : _engine['DomEventExtension|get#timeStamp'](t$36588$4)) != null) {
            let diffMs = dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](event)) - dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](dart.nullCheck(this[_lastWheelEvent])));
            if (diffMs < 50 && dart.test(this[_lastWheelEventWasTrackpad])) {
              return true;
            }
          }
          return false;
        }
      }
      return true;
    }
    [_convertWheelEventToPointerData](event) {
      let t$36588, t$36588$, t$36588$0, t$36588$1;
      if (event == null) dart.nullFailed(I[330], 630, 19, "event");
      let kind = ui.PointerDeviceKind.mouse;
      let deviceId = -1;
      if (dart.test(this[_isTrackpadEvent](event))) {
        kind = ui.PointerDeviceKind.trackpad;
        deviceId = -2;
      }
      let deltaX = _engine['DomWheelEventExtension|get#deltaX'](event);
      let deltaY = _engine['DomWheelEventExtension|get#deltaY'](event);
      switch (_engine['DomWheelEventExtension|get#deltaMode'](event)[$toInt]()) {
        case 1:
          {
            _engine._WheelEventListenerMixin._defaultScrollLineHeight == null ? _engine._WheelEventListenerMixin._defaultScrollLineHeight = this[_computeDefaultScrollLineHeight]() : null;
            deltaX = dart.notNull(deltaX) * dart.nullCheck(_engine._WheelEventListenerMixin._defaultScrollLineHeight);
            deltaY = dart.notNull(deltaY) * dart.nullCheck(_engine._WheelEventListenerMixin._defaultScrollLineHeight);
            break;
          }
        case 2:
          {
            deltaX = dart.notNull(deltaX) * dart.notNull(this[_view].physicalSize.width);
            deltaY = dart.notNull(deltaY) * dart.notNull(this[_view].physicalSize.height);
            break;
          }
        case 0:
          {
            if (ui_web.browser.operatingSystem == ui_web.OperatingSystem.macOs) {
              deltaX = dart.notNull(deltaX) * dart.notNull(this[_view].devicePixelRatio);
              deltaY = dart.notNull(deltaY) * dart.notNull(this[_view].devicePixelRatio);
            }
            break;
          }
        default:
          {
            break;
          }
      }
      let data = G$.JSArrayOfPointerData().of([]);
      let offset = _engine.computeEventOffsetToTarget(event, this[_view]);
      let ignoreCtrlKey = false;
      if (ui_web.browser.operatingSystem == ui_web.OperatingSystem.macOs) {
        ignoreCtrlKey = dart.test((t$36588$ = (t$36588 = this[_keyboardConverter], t$36588 == null ? null : t$36588.keyIsPressed(_engine.kPhysicalControlLeft)), t$36588$ == null ? false : t$36588$)) || dart.test((t$36588$1 = (t$36588$0 = this[_keyboardConverter], t$36588$0 == null ? null : t$36588$0.keyIsPressed(_engine.kPhysicalControlRight)), t$36588$1 == null ? false : t$36588$1));
      }
      if (dart.test(_engine['DomMouseEventExtension|get#ctrlKey'](event)) && !ignoreCtrlKey) {
        this[_pointerDataConverter].convert(data, {viewId: this[_view].viewId, change: ui.PointerChange.hover, timeStamp: _engine._BaseAdapter._eventTimeStampToDuration(dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](event))), kind: kind, signalKind: ui.PointerSignalKind.scale, device: deviceId, physicalX: dart.notNull(offset.dx) * dart.notNull(this[_view].devicePixelRatio), physicalY: dart.notNull(offset.dy) * dart.notNull(this[_view].devicePixelRatio), buttons: dart.nullCheck(_engine['DomMouseEventExtension|get#buttons'](event))[$toInt](), pressure: 1.0, pressureMax: 1.0, scale: math.exp(-dart.notNull(deltaY) / 200)});
      } else {
        this[_pointerDataConverter].convert(data, {viewId: this[_view].viewId, change: ui.PointerChange.hover, timeStamp: _engine._BaseAdapter._eventTimeStampToDuration(dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](event))), kind: kind, signalKind: ui.PointerSignalKind.scroll, device: deviceId, physicalX: dart.notNull(offset.dx) * dart.notNull(this[_view].devicePixelRatio), physicalY: dart.notNull(offset.dy) * dart.notNull(this[_view].devicePixelRatio), buttons: dart.nullCheck(_engine['DomMouseEventExtension|get#buttons'](event))[$toInt](), pressure: 1.0, pressureMax: 1.0, scrollDeltaX: deltaX, scrollDeltaY: deltaY, onRespond: dart.fn(opts => {
            let allowPlatformDefault = opts && 'allowPlatformDefault' in opts ? opts.allowPlatformDefault : false;
            if (allowPlatformDefault == null) dart.nullFailed(I[330], 705, 27, "allowPlatformDefault");
            this[_lastWheelEventAllowedDefault] = !!(dart.notNull(this[_lastWheelEventAllowedDefault]) | dart.test(allowPlatformDefault));
          }, T$11.__Tovoid$17())});
      }
      this[_lastWheelEvent] = event;
      this[_lastWheelEventWasTrackpad] = kind == ui.PointerDeviceKind.trackpad;
      return data;
    }
    [_addWheelEventListener](handler) {
      if (handler == null) dart.nullFailed(I[330], 716, 52, "handler");
      this[_listeners][$add](_engine.Listener.register({event: "wheel", target: this[_viewTarget], handler: handler, passive: false}));
    }
    [_handleWheelEvent](event) {
      let t$36589, t$36588;
      if (event == null) dart.nullFailed(I[330], 725, 35, "event");
      if (!dart.test(_engine.domInstanceOfString(event, "WheelEvent"))) dart.assertFailed(null, I[330], 726, 12, "domInstanceOfString(event, 'WheelEvent')");
      ;
      this[_lastWheelEventAllowedDefault] = false;
      t$36588 = event;
      t$36589 = this[_convertWheelEventToPointerData](T$11.DomWheelEvent()[_as](event));
      this[_callback](t$36588, t$36589);
      if (!dart.test(this[_lastWheelEventAllowedDefault])) {
        event.preventDefault();
      }
    }
    [_computeDefaultScrollLineHeight]() {
      let t$36588;
      let probe = _engine.createDomHTMLDivElement();
      t$36588 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), probe, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#fontSize'](t$36588, "initial");
        _engine['DomCSSStyleDeclarationExtension|set#display'](t$36588, "none");
        return t$36588;
      })();
      dart.nullCheck(js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body")).append(probe);
      let fontSize = _engine['DomCSSStyleDeclarationExtension|get#fontSize'](_engine['DomWindowExtension|getComputedStyle'](dart.jsInteropNullCheck(dart.global.window), probe));
      let res = null;
      if (fontSize[$contains]("px")) {
        fontSize = fontSize[$replaceAll]("px", "");
        res = core.double.tryParse(fontSize);
      }
      probe.remove();
      return res == null ? 16 : dart.notNull(res) / 4.0;
    }
  };
  dart.addRtiResources(_engine._WheelEventListenerMixin, ["_engine|_WheelEventListenerMixin"]);
  dart.setMethodSignature(_engine._WheelEventListenerMixin, () => dart.global.Object.setPrototypeOf({
    [_isAcceleratedMouseWheelDelta]: T$11.numAndnumNTobool(),
    [_isTrackpadEvent]: T$11.DomWheelEventTobool(),
    [_convertWheelEventToPointerData]: T$11.DomWheelEventToListOfPointerData(),
    [_addWheelEventListener]: T$11.FnTovoid$44(),
    [_handleWheelEvent]: T$10.DomEventTovoid(),
    [_computeDefaultScrollLineHeight]: T$.VoidTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._WheelEventListenerMixin))));
  dart.setLibraryUri(_engine._WheelEventListenerMixin, I[220]);
  dart.setStaticFieldSignature(_engine._WheelEventListenerMixin, () => ['_defaultScrollLineHeight']);
  dart.defineLazy(_engine._WheelEventListenerMixin, {
    /*_engine._WheelEventListenerMixin._defaultScrollLineHeight*/get _defaultScrollLineHeight() {
      return null;
    },
    set _defaultScrollLineHeight(value) {}
  }, false);
  var change$0 = dart.privateName(_engine, "_SanitizedDetails.change");
  var buttons$0 = dart.privateName(_engine, "_SanitizedDetails.buttons");
  _engine._SanitizedDetails = class _SanitizedDetails extends core.Object {
    get change() {
      return this[change$0];
    }
    set change(value) {
      super.change = value;
    }
    get buttons() {
      return this[buttons$0];
    }
    set buttons(value) {
      super.buttons = value;
    }
    static ['_#new#tearOff'](opts) {
      let buttons = opts && 'buttons' in opts ? opts.buttons : null;
      if (buttons == null) dart.nullFailed(I[330], 767, 19, "buttons");
      let change = opts && 'change' in opts ? opts.change : null;
      if (change == null) dart.nullFailed(I[330], 768, 19, "change");
      return new _engine._SanitizedDetails.new({buttons: buttons, change: change});
    }
    toString() {
      return dart.str(dart.runtimeType(this)) + "(change: " + dart.str(this.change) + ", buttons: " + dart.str(this.buttons) + ")";
    }
  };
  (_engine._SanitizedDetails.new = function(opts) {
    let buttons = opts && 'buttons' in opts ? opts.buttons : null;
    if (buttons == null) dart.nullFailed(I[330], 767, 19, "buttons");
    let change = opts && 'change' in opts ? opts.change : null;
    if (change == null) dart.nullFailed(I[330], 768, 19, "change");
    this[buttons$0] = buttons;
    this[change$0] = change;
    ;
  }).prototype = _engine._SanitizedDetails.prototype;
  dart.addRtiResources(_engine._SanitizedDetails, ["_engine|_SanitizedDetails"]);
  dart.setLibraryUri(_engine._SanitizedDetails, I[220]);
  dart.setFieldSignature(_engine._SanitizedDetails, () => dart.global.Object.setPrototypeOf({
    change: {type: T$9.PointerChange(), isConst: false, isFinal: true, libraryUri: I[198]},
    buttons: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._SanitizedDetails))));
  dart.defineExtensionMethods(_engine._SanitizedDetails, ['toString']);
  var _pressedButtons = dart.privateName(_engine, "_pressedButtons");
  var _htmlButtonsToFlutterButtons = dart.privateName(_engine, "_htmlButtonsToFlutterButtons");
  var _inferDownFlutterButtons = dart.privateName(_engine, "_inferDownFlutterButtons");
  _engine._ButtonSanitizer = class _ButtonSanitizer extends core.Object {
    [_htmlButtonsToFlutterButtons](buttons) {
      if (buttons == null) dart.nullFailed(I[330], 782, 40, "buttons");
      return (dart.notNull(buttons) & 1073741823) >>> 0;
    }
    [_inferDownFlutterButtons](button, buttons) {
      if (button == null) dart.nullFailed(I[330], 791, 36, "button");
      if (buttons == null) dart.nullFailed(I[330], 791, 48, "buttons");
      if (buttons === 0 && dart.notNull(button) > -1) {
        buttons = _engine.convertButtonToButtons(button);
      }
      return this[_htmlButtonsToFlutterButtons](buttons);
    }
    sanitizeDownEvent(opts) {
      let button = opts && 'button' in opts ? opts.button : null;
      if (button == null) dart.nullFailed(I[330], 801, 18, "button");
      let buttons = opts && 'buttons' in opts ? opts.buttons : null;
      if (buttons == null) dart.nullFailed(I[330], 802, 18, "buttons");
      if (this[_pressedButtons] !== 0) {
        return this.sanitizeMoveEvent({buttons: buttons});
      }
      this[_pressedButtons] = this[_inferDownFlutterButtons](button, buttons);
      return new _engine._SanitizedDetails.new({change: ui.PointerChange.down, buttons: this[_pressedButtons]});
    }
    sanitizeMoveEvent(opts) {
      let buttons = opts && 'buttons' in opts ? opts.buttons : null;
      if (buttons == null) dart.nullFailed(I[330], 818, 53, "buttons");
      let newPressedButtons = this[_htmlButtonsToFlutterButtons](buttons);
      if (this[_pressedButtons] === 0 && newPressedButtons !== 0) {
        return new _engine._SanitizedDetails.new({change: ui.PointerChange.hover, buttons: this[_pressedButtons]});
      }
      this[_pressedButtons] = newPressedButtons;
      return new _engine._SanitizedDetails.new({change: this[_pressedButtons] === 0 ? ui.PointerChange.hover : ui.PointerChange.move, buttons: this[_pressedButtons]});
    }
    sanitizeMissingRightClickUp(opts) {
      let buttons = opts && 'buttons' in opts ? opts.buttons : null;
      if (buttons == null) dart.nullFailed(I[330], 840, 64, "buttons");
      let newPressedButtons = this[_htmlButtonsToFlutterButtons](buttons);
      if (this[_pressedButtons] !== 0 && newPressedButtons === 0) {
        this[_pressedButtons] = 0;
        return new _engine._SanitizedDetails.new({change: ui.PointerChange.up, buttons: this[_pressedButtons]});
      }
      return null;
    }
    sanitizeLeaveEvent(opts) {
      let buttons = opts && 'buttons' in opts ? opts.buttons : null;
      if (buttons == null) dart.nullFailed(I[330], 854, 55, "buttons");
      let newPressedButtons = this[_htmlButtonsToFlutterButtons](buttons);
      if (newPressedButtons === 0) {
        this[_pressedButtons] = 0;
        return new _engine._SanitizedDetails.new({change: ui.PointerChange.hover, buttons: this[_pressedButtons]});
      }
      return null;
    }
    sanitizeUpEvent(opts) {
      let t$36588;
      let buttons = opts && 'buttons' in opts ? opts.buttons : null;
      if (this[_pressedButtons] === 0) {
        return null;
      }
      this[_pressedButtons] = this[_htmlButtonsToFlutterButtons]((t$36588 = buttons, t$36588 == null ? 0 : t$36588));
      if (this[_pressedButtons] === 0) {
        return new _engine._SanitizedDetails.new({change: ui.PointerChange.up, buttons: this[_pressedButtons]});
      } else {
        return new _engine._SanitizedDetails.new({change: ui.PointerChange.move, buttons: this[_pressedButtons]});
      }
    }
    sanitizeCancelEvent() {
      this[_pressedButtons] = 0;
      return new _engine._SanitizedDetails.new({change: ui.PointerChange.cancel, buttons: this[_pressedButtons]});
    }
    static ['_#new#tearOff']() {
      return new _engine._ButtonSanitizer.new();
    }
  };
  (_engine._ButtonSanitizer.new = function() {
    this[_pressedButtons] = 0;
    ;
  }).prototype = _engine._ButtonSanitizer.prototype;
  dart.addRtiResources(_engine._ButtonSanitizer, ["_engine|_ButtonSanitizer"]);
  dart.setMethodSignature(_engine._ButtonSanitizer, () => dart.global.Object.setPrototypeOf({
    [_htmlButtonsToFlutterButtons]: T$.intToint(),
    [_inferDownFlutterButtons]: T$.intAndintToint(),
    sanitizeDownEvent: T$11.__To_SanitizedDetails(),
    sanitizeMoveEvent: T$11.__To_SanitizedDetails$1(),
    sanitizeMissingRightClickUp: T$11.__To_SanitizedDetailsN(),
    sanitizeLeaveEvent: T$11.__To_SanitizedDetailsN(),
    sanitizeUpEvent: T$11.__To_SanitizedDetailsN$1(),
    sanitizeCancelEvent: T$11.VoidTo_SanitizedDetails()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._ButtonSanitizer))));
  dart.setLibraryUri(_engine._ButtonSanitizer, I[220]);
  dart.setFieldSignature(_engine._ButtonSanitizer, () => dart.global.Object.setPrototypeOf({[_pressedButtons]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine._ButtonSanitizer))));
  var _sanitizers = dart.privateName(_engine, "_sanitizers");
  var _ensureSanitizer = dart.privateName(_engine, "_ensureSanitizer");
  var _getSanitizer = dart.privateName(_engine, "_getSanitizer");
  var _hasSanitizer = dart.privateName(_engine, "_hasSanitizer");
  var _removePointerIfUnhoverable = dart.privateName(_engine, "_removePointerIfUnhoverable");
  var _checkModifiersState = dart.privateName(_engine, "_checkModifiersState");
  var _addPointerEventListener = dart.privateName(_engine, "_addPointerEventListener");
  var _getPointerId = dart.privateName(_engine, "_getPointerId");
  var _convertEventsToPointerData = dart.privateName(_engine, "_convertEventsToPointerData");
  var _expandEvents = dart.privateName(_engine, "_expandEvents");
  var _pointerTypeToDeviceKind = dart.privateName(_engine, "_pointerTypeToDeviceKind");
  var _computeHighestTilt = dart.privateName(_engine, "_computeHighestTilt");
  const _BaseAdapter__WheelEventListenerMixin$36 = class _BaseAdapter__WheelEventListenerMixin extends _engine._BaseAdapter {};
  (_BaseAdapter__WheelEventListenerMixin$36.new = function(_owner) {
    dart.global.Object.getPrototypeOf(_BaseAdapter__WheelEventListenerMixin$36).new.call(this, _owner);
  }).prototype = _BaseAdapter__WheelEventListenerMixin$36.prototype;
  dart.applyMixin(_BaseAdapter__WheelEventListenerMixin$36, _engine._WheelEventListenerMixin);
  _engine._PointerAdapter = class _PointerAdapter extends _BaseAdapter__WheelEventListenerMixin$36 {
    static ['_#new#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[330], 911, 25, "owner");
      return new _engine._PointerAdapter.new(owner);
    }
    debugTrackedDevices() {
      return this[_sanitizers][$keys];
    }
    [_ensureSanitizer](device) {
      if (device == null) dart.nullFailed(I[330], 918, 41, "device");
      return this[_sanitizers][$putIfAbsent](device, dart.fn(() => new _engine._ButtonSanitizer.new(), T$11.VoidTo_ButtonSanitizer()));
    }
    [_getSanitizer](device) {
      if (device == null) dart.nullFailed(I[330], 922, 38, "device");
      if (!(this[_sanitizers][$_get](device) != null)) dart.assertFailed(null, I[330], 923, 12, "_sanitizers[device] != null");
      return dart.nullCheck(this[_sanitizers][$_get](device));
    }
    [_hasSanitizer](device) {
      if (device == null) dart.nullFailed(I[330], 927, 26, "device");
      return this[_sanitizers][$containsKey](device);
    }
    [_removePointerIfUnhoverable](event) {
      if (event == null) dart.nullFailed(I[330], 931, 52, "event");
      if (_engine['DomPointerEventExtension|get#pointerType'](event) === "touch") {
        this[_sanitizers][$remove](_engine['DomPointerEventExtension|get#pointerId'](event));
      }
    }
    [_addPointerEventListener](target, eventName, handler, opts) {
      if (target == null) dart.nullFailed(I[330], 938, 20, "target");
      if (eventName == null) dart.nullFailed(I[330], 939, 12, "eventName");
      if (handler == null) dart.nullFailed(I[330], 940, 27, "handler");
      let checkModifiers = opts && 'checkModifiers' in opts ? opts.checkModifiers : true;
      if (checkModifiers == null) dart.nullFailed(I[330], 941, 10, "checkModifiers");
      this.addEventListener(target, eventName, dart.fn(event => {
        if (event == null) dart.nullFailed(I[330], 943, 51, "event");
        let pointerEvent = T$11.DomPointerEvent()[_as](event);
        if (dart.test(checkModifiers)) {
          this[_checkModifiersState](event);
        }
        handler(pointerEvent);
      }, T$10.DomEventTovoid()));
    }
    [_checkModifiersState](event) {
      let t$36588;
      if (event == null) dart.nullFailed(I[330], 952, 45, "event");
      t$36588 = this[_keyboardConverter];
      t$36588 == null ? null : t$36588.synthesizeModifiersIfNeeded(_engine['DomMouseEventExtension|getModifierState'](event, "Alt"), _engine['DomMouseEventExtension|getModifierState'](event, "Control"), _engine['DomMouseEventExtension|getModifierState'](event, "Meta"), _engine['DomMouseEventExtension|getModifierState'](event, "Shift"), dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](event)));
    }
    setup() {
      this[_addPointerEventListener](this[_viewTarget], "pointerdown", dart.fn(event => {
        let t$36589, t$36588;
        if (event == null) dart.nullFailed(I[330], 964, 75, "event");
        let device = this[_getPointerId](event);
        let pointerData = G$.JSArrayOfPointerData().of([]);
        let sanitizer = this[_ensureSanitizer](device);
        let up = sanitizer.sanitizeMissingRightClickUp({buttons: dart.nullCheck(_engine['DomMouseEventExtension|get#buttons'](event))[$toInt]()});
        if (up != null) {
          this[_convertEventsToPointerData]({data: pointerData, event: event, details: up});
        }
        let down = sanitizer.sanitizeDownEvent({button: _engine['DomMouseEventExtension|get#button'](event)[$toInt](), buttons: dart.nullCheck(_engine['DomMouseEventExtension|get#buttons'](event))[$toInt]()});
        this[_convertEventsToPointerData]({data: pointerData, event: event, details: down});
        t$36588 = event;
        t$36589 = pointerData;
        this[_callback](t$36588, t$36589);
        if (dart.equals(js_util.getProperty(T$10.DomEventTargetN(), event, "target"), this[_viewTarget])) {
          event.preventDefault();
          async.Timer.new(core.Duration.zero, dart.fn(() => {
            _engine.EnginePlatformDispatcher.instance.requestViewFocusChange({viewId: this[_view].viewId, state: ui.ViewFocusState.focused, direction: ui.ViewFocusDirection.undefined});
          }, T$.VoidTovoid()));
        }
      }, T$11.DomPointerEventToNull()));
      this[_addPointerEventListener](this[_globalTarget], "pointermove", dart.fn(event => {
        let t$36589, t$36588;
        if (event == null) dart.nullFailed(I[330], 999, 77, "event");
        let device = this[_getPointerId](event);
        let sanitizer = this[_ensureSanitizer](device);
        let pointerData = G$.JSArrayOfPointerData().of([]);
        let expandedEvents = this[_expandEvents](event);
        for (let event of expandedEvents) {
          let up = sanitizer.sanitizeMissingRightClickUp({buttons: dart.nullCheck(_engine['DomMouseEventExtension|get#buttons'](event))[$toInt]()});
          if (up != null) {
            this[_convertEventsToPointerData]({data: pointerData, event: event, details: up});
          }
          let move = sanitizer.sanitizeMoveEvent({buttons: dart.nullCheck(_engine['DomMouseEventExtension|get#buttons'](event))[$toInt]()});
          this[_convertEventsToPointerData]({data: pointerData, event: event, details: move});
        }
        t$36588 = event;
        t$36589 = pointerData;
        this[_callback](t$36588, t$36589);
      }, T$11.DomPointerEventToNull()));
      this[_addPointerEventListener](this[_viewTarget], "pointerleave", dart.fn(event => {
        let t$36589, t$36588;
        if (event == null) dart.nullFailed(I[330], 1015, 76, "event");
        let device = this[_getPointerId](event);
        let sanitizer = this[_ensureSanitizer](device);
        let pointerData = G$.JSArrayOfPointerData().of([]);
        let details = sanitizer.sanitizeLeaveEvent({buttons: dart.nullCheck(_engine['DomMouseEventExtension|get#buttons'](event))[$toInt]()});
        if (details != null) {
          this[_convertEventsToPointerData]({data: pointerData, event: event, details: details});
          t$36588 = event;
          t$36589 = pointerData;
          this[_callback](t$36588, t$36589);
        }
      }, T$11.DomPointerEventToNull()), {checkModifiers: false});
      this[_addPointerEventListener](this[_globalTarget], "pointerup", dart.fn(event => {
        let t$36588, t$36589, t$36588$;
        if (event == null) dart.nullFailed(I[330], 1027, 75, "event");
        let device = this[_getPointerId](event);
        if (dart.test(this[_hasSanitizer](device))) {
          let pointerData = G$.JSArrayOfPointerData().of([]);
          let details = this[_getSanitizer](device).sanitizeUpEvent({buttons: (t$36588 = _engine['DomMouseEventExtension|get#buttons'](event), t$36588 == null ? null : t$36588[$toInt]())});
          this[_removePointerIfUnhoverable](event);
          if (details != null) {
            this[_convertEventsToPointerData]({data: pointerData, event: event, details: details});
            t$36588$ = event;
            t$36589 = pointerData;
            this[_callback](t$36588$, t$36589);
          }
        }
      }, T$11.DomPointerEventToNull()));
      this[_addPointerEventListener](this[_viewTarget], "pointercancel", dart.fn(event => {
        let t$36589, t$36588;
        if (event == null) dart.nullFailed(I[330], 1044, 77, "event");
        let device = this[_getPointerId](event);
        if (dart.test(this[_hasSanitizer](device))) {
          let pointerData = G$.JSArrayOfPointerData().of([]);
          let details = this[_getSanitizer](device).sanitizeCancelEvent();
          this[_removePointerIfUnhoverable](event);
          this[_convertEventsToPointerData]({data: pointerData, event: event, details: details});
          t$36588 = event;
          t$36589 = pointerData;
          this[_callback](t$36588, t$36589);
        }
      }, T$11.DomPointerEventToNull()), {checkModifiers: false});
      this[_addWheelEventListener](dart.fn(event => {
        if (event == null) dart.nullFailed(I[330], 1055, 38, "event");
        this[_handleWheelEvent](event);
      }, T$10.DomEventTovoid()));
    }
    [_convertEventsToPointerData](opts) {
      let data = opts && 'data' in opts ? opts.data : null;
      if (data == null) dart.nullFailed(I[330], 1063, 35, "data");
      let event = opts && 'event' in opts ? opts.event : null;
      if (event == null) dart.nullFailed(I[330], 1064, 30, "event");
      let details = opts && 'details' in opts ? opts.details : null;
      if (details == null) dart.nullFailed(I[330], 1065, 32, "details");
      let kind = this[_pointerTypeToDeviceKind](dart.nullCheck(_engine['DomPointerEventExtension|get#pointerType'](event)));
      let tilt = this[_computeHighestTilt](event);
      let timeStamp = _engine._BaseAdapter._eventTimeStampToDuration(dart.nullCheck(_engine['DomEventExtension|get#timeStamp'](event)));
      let pressure = _engine['DomPointerEventExtension|get#pressure'](event);
      let offset = _engine.computeEventOffsetToTarget(event, this[_view]);
      this[_pointerDataConverter].convert(data, {viewId: this[_view].viewId, change: details.change, timeStamp: timeStamp, kind: kind, signalKind: ui.PointerSignalKind.none, device: this[_getPointerId](event), physicalX: dart.notNull(offset.dx) * dart.notNull(this[_view].devicePixelRatio), physicalY: dart.notNull(offset.dy) * dart.notNull(this[_view].devicePixelRatio), buttons: details.buttons, pressure: pressure == null ? 0.0 : pressure[$toDouble](), pressureMax: 1.0, tilt: tilt});
    }
    [_expandEvents](event) {
      if (event == null) dart.nullFailed(I[330], 1089, 55, "event");
      if (dart.test(_engine.hasJsProperty(event, "getCoalescedEvents"))) {
        let coalescedEvents = _engine['DomPointerEventExtension|getCoalescedEvents'](event)[$cast](T$11.DomPointerEvent());
        if (dart.test(coalescedEvents[$isNotEmpty])) {
          return coalescedEvents;
        }
      }
      return G$.JSArrayOfDomPointerEvent().of([event]);
    }
    [_pointerTypeToDeviceKind](pointerType) {
      if (pointerType == null) dart.nullFailed(I[330], 1108, 56, "pointerType");
      switch (pointerType) {
        case "mouse":
          {
            return ui.PointerDeviceKind.mouse;
          }
        case "pen":
          {
            return ui.PointerDeviceKind.stylus;
          }
        case "touch":
          {
            return ui.PointerDeviceKind.touch;
          }
        default:
          {
            return ui.PointerDeviceKind.unknown;
          }
      }
    }
    [_getPointerId](event) {
      if (event == null) dart.nullFailed(I[330], 1121, 37, "event");
      let kind = this[_pointerTypeToDeviceKind](dart.nullCheck(_engine['DomPointerEventExtension|get#pointerType'](event)));
      return kind == ui.PointerDeviceKind.mouse ? -1 : dart.nullCheck(_engine['DomPointerEventExtension|get#pointerId'](event))[$toInt]();
    }
    [_computeHighestTilt](e) {
      if (e == null) dart.nullFailed(I[330], 1131, 46, "e");
      return dart.nullCheck(dart.nullCheck(_engine['DomPointerEventExtension|get#tiltX'](e))[$abs]() > dart.nullCheck(_engine['DomPointerEventExtension|get#tiltY'](e))[$abs]() ? _engine['DomPointerEventExtension|get#tiltX'](e) : _engine['DomPointerEventExtension|get#tiltY'](e)) / 180.0 * 3.141592653589793;
    }
  };
  (_engine._PointerAdapter.new = function(owner) {
    if (owner == null) dart.nullFailed(I[330], 911, 25, "owner");
    this[_sanitizers] = new (G$.IdentityMapOfint$_ButtonSanitizer()).new();
    dart.global.Object.getPrototypeOf(_engine._PointerAdapter).new.call(this, owner);
    ;
  }).prototype = _engine._PointerAdapter.prototype;
  dart.addRtiResources(_engine._PointerAdapter, ["_engine|_PointerAdapter"]);
  dart.setMethodSignature(_engine._PointerAdapter, () => dart.global.Object.setPrototypeOf({
    debugTrackedDevices: T$11.VoidToIterableOfint(),
    [_ensureSanitizer]: T$11.intTo_ButtonSanitizer(),
    [_getSanitizer]: T$11.intTo_ButtonSanitizer(),
    [_hasSanitizer]: T$.intTobool(),
    [_removePointerIfUnhoverable]: T$11.DomPointerEventTovoid(),
    [_addPointerEventListener]: T$11.DomEventTargetAndStringAndFn__Tovoid(),
    [_checkModifiersState]: T$11.DomPointerEventTovoid(),
    setup: T$.VoidTovoid(),
    [_convertEventsToPointerData]: T$11.__Tovoid$18(),
    [_expandEvents]: T$11.DomPointerEventToListOfDomPointerEvent(),
    [_pointerTypeToDeviceKind]: T$11.StringToPointerDeviceKind(),
    [_getPointerId]: T$11.DomPointerEventToint(),
    [_computeHighestTilt]: T$11.DomPointerEventTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._PointerAdapter))));
  dart.setLibraryUri(_engine._PointerAdapter, I[220]);
  dart.setFieldSignature(_engine._PointerAdapter, () => dart.global.Object.setPrototypeOf({[_sanitizers]: {type: T$11.MapOfint$_ButtonSanitizer(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine._PointerAdapter))));
  var _pointer$ = dart.privateName(_engine, "_pointer");
  _engine._PointerDeviceState = class _PointerDeviceState extends core.Object {
    static ['_#new#tearOff'](x, y) {
      if (x == null) dart.nullFailed(I[331], 12, 28, "x");
      if (y == null) dart.nullFailed(I[331], 12, 36, "y");
      return new _engine._PointerDeviceState.new(x, y);
    }
    get pointer() {
      return this[_pointer$];
    }
    startNewPointer() {
      _engine._PointerDeviceState._pointerCount = dart.notNull(_engine._PointerDeviceState._pointerCount) + 1;
      this[_pointer$] = _engine._PointerDeviceState._pointerCount;
    }
  };
  (_engine._PointerDeviceState.new = function(x, y) {
    if (x == null) dart.nullFailed(I[331], 12, 28, "x");
    if (y == null) dart.nullFailed(I[331], 12, 36, "y");
    this[_pointer$] = null;
    this.x = x;
    this.y = y;
    ;
  }).prototype = _engine._PointerDeviceState.prototype;
  dart.addRtiResources(_engine._PointerDeviceState, ["_engine|_PointerDeviceState"]);
  dart.setMethodSignature(_engine._PointerDeviceState, () => dart.global.Object.setPrototypeOf({startNewPointer: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._PointerDeviceState))));
  dart.setGetterSignature(_engine._PointerDeviceState, () => dart.global.Object.setPrototypeOf({pointer: T$.intN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._PointerDeviceState))));
  dart.setLibraryUri(_engine._PointerDeviceState, I[220]);
  dart.setFieldSignature(_engine._PointerDeviceState, () => dart.global.Object.setPrototypeOf({
    [_pointer$]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    x: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    y: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._PointerDeviceState))));
  dart.setStaticFieldSignature(_engine._PointerDeviceState, () => ['_pointerCount']);
  dart.defineLazy(_engine._PointerDeviceState, {
    /*_engine._PointerDeviceState._pointerCount*/get _pointerCount() {
      return 0;
    },
    set _pointerCount(value) {
      if (value == null) dart.nullFailed(I[331], 17, 14, "_pointerCount");
    }
  }, false);
  _engine._GlobalPointerState = class _GlobalPointerState extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine._GlobalPointerState.new();
    }
    ensurePointerDeviceState(device, x, y) {
      if (device == null) dart.nullFailed(I[331], 46, 52, "device");
      if (x == null) dart.nullFailed(I[331], 46, 67, "x");
      if (y == null) dart.nullFailed(I[331], 46, 77, "y");
      return this.pointers[$putIfAbsent](device, dart.fn(() => new _engine._PointerDeviceState.new(x, y), T$11.VoidTo_PointerDeviceState()));
    }
    reset() {
      this.pointers[$clear]();
      _engine._PointerDeviceState._pointerCount = 0;
      this.activeButtons = 0;
    }
  };
  (_engine._GlobalPointerState.new = function() {
    this.pointers = new (G$.IdentityMapOfint$_PointerDeviceState()).new();
    this.activeButtons = 0;
    if (!dart.test(dart.fn(() => {
      _engine.registerHotRestartListener(dart.bind(this, 'reset'));
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[331], 29, 12, "() {\n      registerHotRestartListener(reset);\n      return true;\n    }()");
  }).prototype = _engine._GlobalPointerState.prototype;
  dart.addRtiResources(_engine._GlobalPointerState, ["_engine|_GlobalPointerState"]);
  dart.setMethodSignature(_engine._GlobalPointerState, () => dart.global.Object.setPrototypeOf({
    ensurePointerDeviceState: T$11.intAnddoubleAnddoubleTo_PointerDeviceState(),
    reset: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._GlobalPointerState))));
  dart.setLibraryUri(_engine._GlobalPointerState, I[220]);
  dart.setFieldSignature(_engine._GlobalPointerState, () => dart.global.Object.setPrototypeOf({
    pointers: {type: T$11.MapOfint$_PointerDeviceState(), isConst: false, isFinal: true, libraryUri: I[11]},
    activeButtons: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._GlobalPointerState))));
  var _generateCompletePointerData = dart.privateName(_engine, "_generateCompletePointerData");
  var _locationHasChanged = dart.privateName(_engine, "_locationHasChanged");
  var _synthesizePointerData = dart.privateName(_engine, "_synthesizePointerData");
  _engine.PointerDataConverter = class PointerDataConverter extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.PointerDataConverter.new();
    }
    [_generateCompletePointerData](opts) {
      let t$36588;
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      if (viewId == null) dart.nullFailed(I[331], 93, 18, "viewId");
      let timeStamp = opts && 'timeStamp' in opts ? opts.timeStamp : null;
      if (timeStamp == null) dart.nullFailed(I[331], 94, 23, "timeStamp");
      let change = opts && 'change' in opts ? opts.change : null;
      if (change == null) dart.nullFailed(I[331], 95, 31, "change");
      let kind = opts && 'kind' in opts ? opts.kind : null;
      if (kind == null) dart.nullFailed(I[331], 96, 35, "kind");
      let signalKind = opts && 'signalKind' in opts ? opts.signalKind : null;
      let device = opts && 'device' in opts ? opts.device : null;
      if (device == null) dart.nullFailed(I[331], 98, 18, "device");
      let physicalX = opts && 'physicalX' in opts ? opts.physicalX : null;
      if (physicalX == null) dart.nullFailed(I[331], 99, 21, "physicalX");
      let physicalY = opts && 'physicalY' in opts ? opts.physicalY : null;
      if (physicalY == null) dart.nullFailed(I[331], 100, 21, "physicalY");
      let buttons = opts && 'buttons' in opts ? opts.buttons : null;
      if (buttons == null) dart.nullFailed(I[331], 101, 18, "buttons");
      let obscured = opts && 'obscured' in opts ? opts.obscured : null;
      if (obscured == null) dart.nullFailed(I[331], 102, 19, "obscured");
      let pressure = opts && 'pressure' in opts ? opts.pressure : null;
      if (pressure == null) dart.nullFailed(I[331], 103, 21, "pressure");
      let pressureMin = opts && 'pressureMin' in opts ? opts.pressureMin : null;
      if (pressureMin == null) dart.nullFailed(I[331], 104, 21, "pressureMin");
      let pressureMax = opts && 'pressureMax' in opts ? opts.pressureMax : null;
      if (pressureMax == null) dart.nullFailed(I[331], 105, 21, "pressureMax");
      let distance = opts && 'distance' in opts ? opts.distance : null;
      if (distance == null) dart.nullFailed(I[331], 106, 21, "distance");
      let distanceMax = opts && 'distanceMax' in opts ? opts.distanceMax : null;
      if (distanceMax == null) dart.nullFailed(I[331], 107, 21, "distanceMax");
      let size = opts && 'size' in opts ? opts.size : null;
      if (size == null) dart.nullFailed(I[331], 108, 21, "size");
      let radiusMajor = opts && 'radiusMajor' in opts ? opts.radiusMajor : null;
      if (radiusMajor == null) dart.nullFailed(I[331], 109, 21, "radiusMajor");
      let radiusMinor = opts && 'radiusMinor' in opts ? opts.radiusMinor : null;
      if (radiusMinor == null) dart.nullFailed(I[331], 110, 21, "radiusMinor");
      let radiusMin = opts && 'radiusMin' in opts ? opts.radiusMin : null;
      if (radiusMin == null) dart.nullFailed(I[331], 111, 21, "radiusMin");
      let radiusMax = opts && 'radiusMax' in opts ? opts.radiusMax : null;
      if (radiusMax == null) dart.nullFailed(I[331], 112, 21, "radiusMax");
      let orientation = opts && 'orientation' in opts ? opts.orientation : null;
      if (orientation == null) dart.nullFailed(I[331], 113, 21, "orientation");
      let tilt = opts && 'tilt' in opts ? opts.tilt : null;
      if (tilt == null) dart.nullFailed(I[331], 114, 21, "tilt");
      let platformData = opts && 'platformData' in opts ? opts.platformData : null;
      if (platformData == null) dart.nullFailed(I[331], 115, 18, "platformData");
      let scrollDeltaX = opts && 'scrollDeltaX' in opts ? opts.scrollDeltaX : null;
      if (scrollDeltaX == null) dart.nullFailed(I[331], 116, 21, "scrollDeltaX");
      let scrollDeltaY = opts && 'scrollDeltaY' in opts ? opts.scrollDeltaY : null;
      if (scrollDeltaY == null) dart.nullFailed(I[331], 117, 21, "scrollDeltaY");
      let scale = opts && 'scale' in opts ? opts.scale : null;
      if (scale == null) dart.nullFailed(I[331], 118, 21, "scale");
      let onRespond = opts && 'onRespond' in opts ? opts.onRespond : null;
      if (!dart.test(_engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device))) dart.assertFailed(null, I[331], 121, 12, "globalPointerState.pointers.containsKey(device)");
      let state = dart.nullCheck(_engine.PointerDataConverter.globalPointerState.pointers[$_get](device));
      let deltaX = dart.notNull(physicalX) - dart.notNull(state.x);
      let deltaY = dart.notNull(physicalY) - dart.notNull(state.y);
      state.x = physicalX;
      state.y = physicalY;
      return new ui.PointerData.new({viewId: viewId, timeStamp: timeStamp, change: change, kind: kind, signalKind: signalKind, device: device, pointerIdentifier: (t$36588 = state.pointer, t$36588 == null ? 0 : t$36588), physicalX: physicalX, physicalY: physicalY, physicalDeltaX: deltaX, physicalDeltaY: deltaY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale, onRespond: onRespond});
    }
    [_locationHasChanged](device, physicalX, physicalY) {
      if (device == null) dart.nullFailed(I[331], 161, 32, "device");
      if (physicalX == null) dart.nullFailed(I[331], 161, 47, "physicalX");
      if (physicalY == null) dart.nullFailed(I[331], 161, 65, "physicalY");
      if (!dart.test(_engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device))) dart.assertFailed(null, I[331], 162, 12, "globalPointerState.pointers.containsKey(device)");
      let state = dart.nullCheck(_engine.PointerDataConverter.globalPointerState.pointers[$_get](device));
      return state.x != physicalX || state.y != physicalY;
    }
    [_synthesizePointerData](opts) {
      let t$36588;
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      if (viewId == null) dart.nullFailed(I[331], 168, 18, "viewId");
      let timeStamp = opts && 'timeStamp' in opts ? opts.timeStamp : null;
      if (timeStamp == null) dart.nullFailed(I[331], 169, 23, "timeStamp");
      let change = opts && 'change' in opts ? opts.change : null;
      if (change == null) dart.nullFailed(I[331], 170, 31, "change");
      let kind = opts && 'kind' in opts ? opts.kind : null;
      if (kind == null) dart.nullFailed(I[331], 171, 35, "kind");
      let device = opts && 'device' in opts ? opts.device : null;
      if (device == null) dart.nullFailed(I[331], 172, 18, "device");
      let physicalX = opts && 'physicalX' in opts ? opts.physicalX : null;
      if (physicalX == null) dart.nullFailed(I[331], 173, 21, "physicalX");
      let physicalY = opts && 'physicalY' in opts ? opts.physicalY : null;
      if (physicalY == null) dart.nullFailed(I[331], 174, 21, "physicalY");
      let buttons = opts && 'buttons' in opts ? opts.buttons : null;
      if (buttons == null) dart.nullFailed(I[331], 175, 18, "buttons");
      let obscured = opts && 'obscured' in opts ? opts.obscured : null;
      if (obscured == null) dart.nullFailed(I[331], 176, 19, "obscured");
      let pressure = opts && 'pressure' in opts ? opts.pressure : null;
      if (pressure == null) dart.nullFailed(I[331], 177, 21, "pressure");
      let pressureMin = opts && 'pressureMin' in opts ? opts.pressureMin : null;
      if (pressureMin == null) dart.nullFailed(I[331], 178, 21, "pressureMin");
      let pressureMax = opts && 'pressureMax' in opts ? opts.pressureMax : null;
      if (pressureMax == null) dart.nullFailed(I[331], 179, 21, "pressureMax");
      let distance = opts && 'distance' in opts ? opts.distance : null;
      if (distance == null) dart.nullFailed(I[331], 180, 21, "distance");
      let distanceMax = opts && 'distanceMax' in opts ? opts.distanceMax : null;
      if (distanceMax == null) dart.nullFailed(I[331], 181, 21, "distanceMax");
      let size = opts && 'size' in opts ? opts.size : null;
      if (size == null) dart.nullFailed(I[331], 182, 21, "size");
      let radiusMajor = opts && 'radiusMajor' in opts ? opts.radiusMajor : null;
      if (radiusMajor == null) dart.nullFailed(I[331], 183, 21, "radiusMajor");
      let radiusMinor = opts && 'radiusMinor' in opts ? opts.radiusMinor : null;
      if (radiusMinor == null) dart.nullFailed(I[331], 184, 21, "radiusMinor");
      let radiusMin = opts && 'radiusMin' in opts ? opts.radiusMin : null;
      if (radiusMin == null) dart.nullFailed(I[331], 185, 21, "radiusMin");
      let radiusMax = opts && 'radiusMax' in opts ? opts.radiusMax : null;
      if (radiusMax == null) dart.nullFailed(I[331], 186, 21, "radiusMax");
      let orientation = opts && 'orientation' in opts ? opts.orientation : null;
      if (orientation == null) dart.nullFailed(I[331], 187, 21, "orientation");
      let tilt = opts && 'tilt' in opts ? opts.tilt : null;
      if (tilt == null) dart.nullFailed(I[331], 188, 21, "tilt");
      let platformData = opts && 'platformData' in opts ? opts.platformData : null;
      if (platformData == null) dart.nullFailed(I[331], 189, 18, "platformData");
      let scrollDeltaX = opts && 'scrollDeltaX' in opts ? opts.scrollDeltaX : null;
      if (scrollDeltaX == null) dart.nullFailed(I[331], 190, 21, "scrollDeltaX");
      let scrollDeltaY = opts && 'scrollDeltaY' in opts ? opts.scrollDeltaY : null;
      if (scrollDeltaY == null) dart.nullFailed(I[331], 191, 21, "scrollDeltaY");
      let scale = opts && 'scale' in opts ? opts.scale : null;
      if (scale == null) dart.nullFailed(I[331], 192, 21, "scale");
      if (!dart.test(_engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device))) dart.assertFailed(null, I[331], 194, 12, "globalPointerState.pointers.containsKey(device)");
      let state = dart.nullCheck(_engine.PointerDataConverter.globalPointerState.pointers[$_get](device));
      let deltaX = dart.notNull(physicalX) - dart.notNull(state.x);
      let deltaY = dart.notNull(physicalY) - dart.notNull(state.y);
      state.x = physicalX;
      state.y = physicalY;
      return new ui.PointerData.new({viewId: viewId, timeStamp: timeStamp, change: change, kind: kind, signalKind: ui.PointerSignalKind.none, device: device, pointerIdentifier: (t$36588 = state.pointer, t$36588 == null ? 0 : t$36588), physicalX: physicalX, physicalY: physicalY, physicalDeltaX: deltaX, physicalDeltaY: deltaY, buttons: buttons, obscured: obscured, synthesized: true, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale});
    }
    convert(result, opts) {
      if (result == null) dart.nullFailed(I[331], 240, 26, "result");
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      if (viewId == null) dart.nullFailed(I[331], 241, 18, "viewId");
      let timeStamp = opts && 'timeStamp' in opts ? opts.timeStamp : C[472] || CT.C472;
      if (timeStamp == null) dart.nullFailed(I[331], 242, 14, "timeStamp");
      let change = opts && 'change' in opts ? opts.change : C[662] || CT.C662;
      if (change == null) dart.nullFailed(I[331], 243, 22, "change");
      let kind = opts && 'kind' in opts ? opts.kind : C[673] || CT.C673;
      if (kind == null) dart.nullFailed(I[331], 244, 26, "kind");
      let signalKind = opts && 'signalKind' in opts ? opts.signalKind : null;
      let device = opts && 'device' in opts ? opts.device : 0;
      if (device == null) dart.nullFailed(I[331], 246, 9, "device");
      let physicalX = opts && 'physicalX' in opts ? opts.physicalX : 0;
      if (physicalX == null) dart.nullFailed(I[331], 247, 12, "physicalX");
      let physicalY = opts && 'physicalY' in opts ? opts.physicalY : 0;
      if (physicalY == null) dart.nullFailed(I[331], 248, 12, "physicalY");
      let buttons = opts && 'buttons' in opts ? opts.buttons : 0;
      if (buttons == null) dart.nullFailed(I[331], 249, 9, "buttons");
      let obscured = opts && 'obscured' in opts ? opts.obscured : false;
      if (obscured == null) dart.nullFailed(I[331], 250, 10, "obscured");
      let pressure = opts && 'pressure' in opts ? opts.pressure : 0;
      if (pressure == null) dart.nullFailed(I[331], 251, 12, "pressure");
      let pressureMin = opts && 'pressureMin' in opts ? opts.pressureMin : 0;
      if (pressureMin == null) dart.nullFailed(I[331], 252, 12, "pressureMin");
      let pressureMax = opts && 'pressureMax' in opts ? opts.pressureMax : 0;
      if (pressureMax == null) dart.nullFailed(I[331], 253, 12, "pressureMax");
      let distance = opts && 'distance' in opts ? opts.distance : 0;
      if (distance == null) dart.nullFailed(I[331], 254, 12, "distance");
      let distanceMax = opts && 'distanceMax' in opts ? opts.distanceMax : 0;
      if (distanceMax == null) dart.nullFailed(I[331], 255, 12, "distanceMax");
      let size = opts && 'size' in opts ? opts.size : 0;
      if (size == null) dart.nullFailed(I[331], 256, 12, "size");
      let radiusMajor = opts && 'radiusMajor' in opts ? opts.radiusMajor : 0;
      if (radiusMajor == null) dart.nullFailed(I[331], 257, 12, "radiusMajor");
      let radiusMinor = opts && 'radiusMinor' in opts ? opts.radiusMinor : 0;
      if (radiusMinor == null) dart.nullFailed(I[331], 258, 12, "radiusMinor");
      let radiusMin = opts && 'radiusMin' in opts ? opts.radiusMin : 0;
      if (radiusMin == null) dart.nullFailed(I[331], 259, 12, "radiusMin");
      let radiusMax = opts && 'radiusMax' in opts ? opts.radiusMax : 0;
      if (radiusMax == null) dart.nullFailed(I[331], 260, 12, "radiusMax");
      let orientation = opts && 'orientation' in opts ? opts.orientation : 0;
      if (orientation == null) dart.nullFailed(I[331], 261, 12, "orientation");
      let tilt = opts && 'tilt' in opts ? opts.tilt : 0;
      if (tilt == null) dart.nullFailed(I[331], 262, 12, "tilt");
      let platformData = opts && 'platformData' in opts ? opts.platformData : 0;
      if (platformData == null) dart.nullFailed(I[331], 263, 9, "platformData");
      let scrollDeltaX = opts && 'scrollDeltaX' in opts ? opts.scrollDeltaX : 0;
      if (scrollDeltaX == null) dart.nullFailed(I[331], 264, 12, "scrollDeltaX");
      let scrollDeltaY = opts && 'scrollDeltaY' in opts ? opts.scrollDeltaY : 0;
      if (scrollDeltaY == null) dart.nullFailed(I[331], 265, 12, "scrollDeltaY");
      let scale = opts && 'scale' in opts ? opts.scale : 1;
      if (scale == null) dart.nullFailed(I[331], 266, 12, "scale");
      let onRespond = opts && 'onRespond' in opts ? opts.onRespond : null;
      ;
      let isDown = buttons !== 0;
      if (signalKind == null || signalKind == ui.PointerSignalKind.none) {
        switch (change) {
          case C[663] || CT.C663:
            {
              if (!!dart.test(_engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device))) dart.assertFailed(null, I[331], 277, 18, "!globalPointerState.pointers.containsKey(device)");
              _engine.PointerDataConverter.globalPointerState.ensurePointerDeviceState(device, physicalX, physicalY);
              if (!!dart.test(this[_locationHasChanged](device, physicalX, physicalY))) dart.assertFailed(null, I[331], 279, 18, "!_locationHasChanged(device, physicalX, physicalY)");
              result[$add](this[_generateCompletePointerData]({viewId: viewId, timeStamp: timeStamp, change: change, kind: kind, signalKind: signalKind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              break;
            }
          case C[665] || CT.C665:
            {
              let alreadyAdded = _engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device);
              _engine.PointerDataConverter.globalPointerState.ensurePointerDeviceState(device, physicalX, physicalY);
              if (!!isDown) dart.assertFailed(null, I[331], 313, 18, "!isDown");
              if (!dart.test(alreadyAdded)) {
                result[$add](this[_synthesizePointerData]({viewId: viewId, timeStamp: timeStamp, change: ui.PointerChange.add, kind: kind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              }
              result[$add](this[_generateCompletePointerData]({viewId: viewId, timeStamp: timeStamp, change: change, kind: kind, signalKind: signalKind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              _engine.PointerDataConverter.globalPointerState.activeButtons = buttons;
              break;
            }
          case C[666] || CT.C666:
            {
              let alreadyAdded = _engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device);
              let state = _engine.PointerDataConverter.globalPointerState.ensurePointerDeviceState(device, physicalX, physicalY);
              if (!isDown) dart.assertFailed(null, I[331], 381, 18, "isDown");
              state.startNewPointer();
              if (!dart.test(alreadyAdded)) {
                result[$add](this[_synthesizePointerData]({viewId: viewId, timeStamp: timeStamp, change: ui.PointerChange.add, kind: kind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              }
              if (dart.test(this[_locationHasChanged](device, physicalX, physicalY))) {
                if (!dart.test(alreadyAdded)) dart.assertFailed(null, I[331], 416, 20, "alreadyAdded");
                result[$add](this[_synthesizePointerData]({viewId: viewId, timeStamp: timeStamp, change: ui.PointerChange.hover, kind: kind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: 0, obscured: obscured, pressure: 0.0, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              }
              result[$add](this[_generateCompletePointerData]({viewId: viewId, timeStamp: timeStamp, change: change, kind: kind, signalKind: signalKind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              _engine.PointerDataConverter.globalPointerState.activeButtons = buttons;
              break;
            }
          case C[667] || CT.C667:
            {
              if (!dart.test(_engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device))) dart.assertFailed(null, I[331], 481, 18, "globalPointerState.pointers.containsKey(device)");
              if (!isDown) dart.assertFailed(null, I[331], 482, 18, "isDown");
              result[$add](this[_generateCompletePointerData]({viewId: viewId, timeStamp: timeStamp, change: change, kind: kind, signalKind: signalKind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              _engine.PointerDataConverter.globalPointerState.activeButtons = buttons;
              break;
            }
          case C[668] || CT.C668:
          case C[662] || CT.C662:
            {
              if (!dart.test(_engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device))) dart.assertFailed(null, I[331], 516, 18, "globalPointerState.pointers.containsKey(device)");
              let state = dart.nullCheck(_engine.PointerDataConverter.globalPointerState.pointers[$_get](device));
              if (!!isDown) dart.assertFailed(null, I[331], 518, 18, "!isDown");
              if (change == ui.PointerChange.cancel) {
                physicalX = state.x;
                physicalY = state.y;
              }
              if (dart.test(this[_locationHasChanged](device, physicalX, physicalY))) {
                result[$add](this[_synthesizePointerData]({viewId: viewId, timeStamp: timeStamp, change: ui.PointerChange.move, kind: kind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: _engine.PointerDataConverter.globalPointerState.activeButtons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              }
              result[$add](this[_generateCompletePointerData]({viewId: viewId, timeStamp: timeStamp, change: change, kind: kind, signalKind: signalKind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              if (kind == ui.PointerDeviceKind.touch) {
                result[$add](this[_synthesizePointerData]({viewId: viewId, timeStamp: timeStamp, change: ui.PointerChange.remove, kind: kind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: 0, obscured: obscured, pressure: 0.0, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
                _engine.PointerDataConverter.globalPointerState.pointers[$remove](device);
              }
              break;
            }
          case C[664] || CT.C664:
            {
              if (!dart.test(_engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device))) dart.assertFailed(null, I[331], 627, 18, "globalPointerState.pointers.containsKey(device)");
              let state = dart.nullCheck(_engine.PointerDataConverter.globalPointerState.pointers[$_get](device));
              if (!!isDown) dart.assertFailed(null, I[331], 629, 18, "!isDown");
              result[$add](this[_generateCompletePointerData]({viewId: viewId, timeStamp: timeStamp, change: change, kind: kind, signalKind: signalKind, device: device, physicalX: state.x, physicalY: state.y, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              _engine.PointerDataConverter.globalPointerState.pointers[$remove](device);
              break;
            }
          case C[669] || CT.C669:
          case C[670] || CT.C670:
          case C[671] || CT.C671:
            {
              if (!false) dart.assertFailed(null, I[331], 665, 18, "false");
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
        }
      } else {
        switch (signalKind) {
          case C[681] || CT.C681:
          case C[682] || CT.C682:
          case C[683] || CT.C683:
            {
              let alreadyAdded = _engine.PointerDataConverter.globalPointerState.pointers[$containsKey](device);
              _engine.PointerDataConverter.globalPointerState.ensurePointerDeviceState(device, physicalX, physicalY);
              if (!dart.test(alreadyAdded)) {
                result[$add](this[_synthesizePointerData]({viewId: viewId, timeStamp: timeStamp, change: ui.PointerChange.add, kind: kind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
              }
              if (dart.test(this[_locationHasChanged](device, physicalX, physicalY))) {
                if (isDown) {
                  result[$add](this[_synthesizePointerData]({viewId: viewId, timeStamp: timeStamp, change: ui.PointerChange.move, kind: kind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
                } else {
                  result[$add](this[_synthesizePointerData]({viewId: viewId, timeStamp: timeStamp, change: ui.PointerChange.hover, kind: kind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale}));
                }
              }
              result[$add](this[_generateCompletePointerData]({viewId: viewId, timeStamp: timeStamp, change: change, kind: kind, signalKind: signalKind, device: device, physicalX: physicalX, physicalY: physicalY, buttons: buttons, obscured: obscured, pressure: pressure, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, size: size, radiusMajor: radiusMajor, radiusMinor: radiusMinor, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt, platformData: platformData, scrollDeltaX: scrollDeltaX, scrollDeltaY: scrollDeltaY, scale: scale, onRespond: onRespond}));
              break;
            }
          case C[680] || CT.C680:
            {
              if (!false) dart.assertFailed(null, I[331], 805, 18, "false");
              break;
            }
          case C[684] || CT.C684:
            {
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
        }
      }
    }
  };
  (_engine.PointerDataConverter.new = function() {
    ;
  }).prototype = _engine.PointerDataConverter.prototype;
  dart.addRtiResources(_engine.PointerDataConverter, ["_engine|PointerDataConverter"]);
  dart.setMethodSignature(_engine.PointerDataConverter, () => dart.global.Object.setPrototypeOf({
    [_generateCompletePointerData]: T$11.__ToPointerData(),
    [_locationHasChanged]: T$11.intAnddoubleAnddoubleTobool(),
    [_synthesizePointerData]: T$11.__ToPointerData$1(),
    convert: T$11.ListOfPointerData__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PointerDataConverter))));
  dart.setLibraryUri(_engine.PointerDataConverter, I[220]);
  dart.setStaticFieldSignature(_engine.PointerDataConverter, () => ['globalPointerState']);
  dart.defineLazy(_engine.PointerDataConverter, {
    /*_engine.PointerDataConverter.globalPointerState*/get globalPointerState() {
      return new _engine._GlobalPointerState.new();
    }
  }, false);
  _engine.Profiler = class Profiler extends core.Object {
    static ['_#_#tearOff']() {
      return new _engine.Profiler.__();
    }
    static ensureInitialized() {
      let t$36588;
      _engine.Profiler._checkBenchmarkMode();
      t$36588 = _engine.Profiler._instance;
      return t$36588 == null ? _engine.Profiler._instance = new _engine.Profiler.__() : t$36588;
    }
    static get instance() {
      _engine.Profiler._checkBenchmarkMode();
      let profiler = _engine.Profiler._instance;
      if (profiler == null) {
        dart.throw(core.Exception.new("Profiler has not been properly initialized. Make sure Profiler.ensureInitialized() is being called before you access Profiler.instance"));
      }
      return profiler;
    }
    static _checkBenchmarkMode() {
      if (!dart.test(_engine.Profiler.isBenchmarkMode)) {
        dart.throw(core.Exception.new("Cannot use Profiler unless benchmark mode is enabled. You can enable it by setting the `FLUTTER_WEB_ENABLE_PROFILING` environment variable to true."));
      }
    }
    benchmark(name, value) {
      let t$36588;
      if (name == null) dart.nullFailed(I[332], 104, 25, "name");
      if (value == null) dart.nullFailed(I[332], 104, 38, "value");
      _engine.Profiler._checkBenchmarkMode();
      let callback = T$11.StringAnddoubleToNvoid()[_as]((t$36588 = dart.global.window._flutter_internal_on_benchmark, t$36588 == null ? null : js_util._jsFunctionToDart(t$36588)));
      if (callback != null) {
        _engine.printWarning("The JavaScript benchmarking API (i.e. `window._flutter_internal_on_benchmark`) is deprecated and will be removed in a future release. Please use `benchmarkValueCallback` from `dart:ui_web` instead.");
        callback(name, value);
      }
      if (_engine.engineBenchmarkValueCallback != null) {
        dart.nullCheck(_engine.engineBenchmarkValueCallback)(name, value);
      }
    }
  };
  (_engine.Profiler.__ = function() {
    _engine.Profiler._checkBenchmarkMode();
  }).prototype = _engine.Profiler.prototype;
  dart.addRtiResources(_engine.Profiler, ["_engine|Profiler"]);
  dart.setMethodSignature(_engine.Profiler, () => dart.global.Object.setPrototypeOf({benchmark: T$11.StringAnddoubleTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Profiler))));
  dart.setStaticMethodSignature(_engine.Profiler, () => ['ensureInitialized', '_checkBenchmarkMode']);
  dart.setStaticGetterSignature(_engine.Profiler, () => ['instance']);
  dart.setLibraryUri(_engine.Profiler, I[220]);
  dart.setStaticFieldSignature(_engine.Profiler, () => ['isBenchmarkMode', '_instance']);
  dart.defineLazy(_engine.Profiler, {
    /*_engine.Profiler.isBenchmarkMode*/get isBenchmarkMode() {
      return false;
    },
    set isBenchmarkMode(value) {
      if (value == null) dart.nullFailed(I[332], 69, 15, "isBenchmarkMode");
    },
    /*_engine.Profiler._instance*/get _instance() {
      return null;
    },
    set _instance(value) {}
  }, false);
  var _counters = dart.privateName(_engine, "_counters");
  var _printTimer = dart.privateName(_engine, "_printTimer");
  _engine.Instrumentation = class Instrumentation extends core.Object {
    static ['_#_#tearOff']() {
      return new _engine.Instrumentation.__();
    }
    static get enabled() {
      return _engine.Instrumentation._enabled;
    }
    static set enabled(value) {
      if (value == null) dart.nullFailed(I[332], 137, 27, "value");
      if (_engine.Instrumentation._enabled == value) {
        return;
      }
      if (!dart.test(value)) {
        _engine.Instrumentation._instance[_counters][$clear]();
        _engine.Instrumentation._instance[_printTimer] = null;
      }
      _engine.Instrumentation._enabled = value;
    }
    static get instance() {
      _engine.Instrumentation._checkInstrumentationEnabled();
      return _engine.Instrumentation._instance;
    }
    static _checkInstrumentationEnabled() {
      if (!dart.test(_engine.Instrumentation.enabled)) {
        dart.throw(new core.StateError.new("Cannot use Instrumentation unless it is enabled. You can enable it by setting the `FLUTTER_WEB_ENABLE_INSTRUMENTATION` environment variable to true, or by passing --dart-define=FLUTTER_WEB_ENABLE_INSTRUMENTATION=true to the flutter tool."));
      }
    }
    get debugCounters() {
      return this[_counters];
    }
    get debugPrintTimer() {
      return this[_printTimer];
    }
    incrementCounter(event) {
      let t$36588;
      if (event == null) dart.nullFailed(I[332], 180, 32, "event");
      _engine.Instrumentation._checkInstrumentationEnabled();
      let currentCount = (t$36588 = this[_counters][$_get](event), t$36588 == null ? 0 : t$36588);
      this[_counters][$_set](event, dart.notNull(currentCount) + 1);
      this[_printTimer] == null ? this[_printTimer] = async.Timer.new(C[902] || CT.C902, dart.fn(() => {
        let t$36588;
        if (this[_printTimer] == null || !dart.test(_engine.Instrumentation._enabled)) {
          return;
        }
        let message = new core.StringBuffer.new("Engine counters:\n");
        let entries = (t$36588 = this[_counters][$entries][$toList](), (() => {
          t$36588[$sort](dart.fn((a, b) => {
            if (a == null) dart.nullFailed(I[332], 193, 41, "a");
            if (b == null) dart.nullFailed(I[332], 193, 66, "b");
            return a.key[$compareTo](b.key);
          }, T$11.MapEntryOfString$intAndMapEntryOfString$intToint()));
          return t$36588;
        })());
        for (let entry of entries) {
          message.writeln("  " + dart.str(entry.key) + ": " + dart.str(entry.value));
        }
        core.print(message);
        this[_printTimer] = null;
      }, T$.VoidTovoid())) : null;
    }
  };
  (_engine.Instrumentation.__ = function() {
    this[_counters] = new (G.IdentityMapOfString$int()).new();
    this[_printTimer] = null;
    _engine.Instrumentation._checkInstrumentationEnabled();
  }).prototype = _engine.Instrumentation.prototype;
  dart.addRtiResources(_engine.Instrumentation, ["_engine|Instrumentation"]);
  dart.setMethodSignature(_engine.Instrumentation, () => dart.global.Object.setPrototypeOf({incrementCounter: T$.StringTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Instrumentation))));
  dart.setStaticMethodSignature(_engine.Instrumentation, () => ['_checkInstrumentationEnabled']);
  dart.setGetterSignature(_engine.Instrumentation, () => dart.global.Object.setPrototypeOf({
    debugCounters: T$6.MapOfString$int(),
    debugPrintTimer: T$9.TimerN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Instrumentation))));
  dart.setStaticGetterSignature(_engine.Instrumentation, () => ['enabled', 'instance']);
  dart.setStaticSetterSignature(_engine.Instrumentation, () => ['enabled']);
  dart.setLibraryUri(_engine.Instrumentation, I[220]);
  dart.setFieldSignature(_engine.Instrumentation, () => dart.global.Object.setPrototypeOf({
    [_counters]: {type: T$6.MapOfString$int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_printTimer]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Instrumentation))));
  dart.setStaticFieldSignature(_engine.Instrumentation, () => ['_enabled', '_instance']);
  dart.defineLazy(_engine.Instrumentation, {
    /*_engine.Instrumentation._enabled*/get _enabled() {
      return false;
    },
    set _enabled(value) {
      if (value == null) dart.nullFailed(I[332], 149, 15, "_enabled");
    },
    /*_engine.Instrumentation._instance*/get _instance() {
      return new _engine.Instrumentation.__();
    }
  }, false);
  var _keydownTimers = dart.privateName(_engine, "_keydownTimers");
  var _lastMetaState = dart.privateName(_engine, "_lastMetaState");
  var _onMacOs$ = dart.privateName(_engine, "_onMacOs");
  var _shouldIgnore = dart.privateName(_engine, "_shouldIgnore");
  var _synthesizeKeyup = dart.privateName(_engine, "_synthesizeKeyup");
  _engine.RawKeyboard = class RawKeyboard extends core.Object {
    static ['_#_#tearOff'](_onMacOs) {
      if (_onMacOs == null) dart.nullFailed(I[333], 10, 22, "_onMacOs");
      return new _engine.RawKeyboard.__(_onMacOs);
    }
    static initialize(opts) {
      let onMacOs = opts && 'onMacOs' in opts ? opts.onMacOs : false;
      if (onMacOs == null) dart.nullFailed(I[333], 19, 32, "onMacOs");
      _engine.RawKeyboard._instance == null ? _engine.RawKeyboard._instance = new _engine.RawKeyboard.__(onMacOs) : null;
      _engine.KeyboardBinding.initInstance();
    }
    static get instance() {
      return _engine.RawKeyboard._instance;
    }
    dispose() {
      for (let key of this[_keydownTimers][$keys]) {
        dart.nullCheck(this[_keydownTimers][$_get](key)).cancel();
      }
      this[_keydownTimers][$clear]();
      _engine.RawKeyboard._instance = null;
    }
    [_shouldDoKeyGuard]() {
      return this[_onMacOs$];
    }
    [_shouldIgnore](event) {
      if (event == null) dart.nullFailed(I[333], 70, 47, "event");
      return event.type === "keydown" && event.key === "Tab" && dart.test(event.isComposing);
    }
    handleHtmlEvent(domEvent) {
      let t$36588;
      if (domEvent == null) dart.nullFailed(I[333], 78, 33, "domEvent");
      if (!dart.test(_engine.domInstanceOfString(domEvent, "KeyboardEvent"))) {
        return;
      }
      let event = new _engine.FlutterHtmlKeyboardEvent.new(T$11.DomKeyboardEvent()[_as](domEvent));
      let timerKey = dart.nullCheck(event.code);
      if (dart.test(this[_shouldIgnore](event))) {
        return;
      }
      if (!dart.test(_engine._isModifierKey(event)) && dart.test(this[_shouldDoKeyGuard]())) {
        t$36588 = this[_keydownTimers][$_get](timerKey);
        t$36588 == null ? null : t$36588.cancel();
        if (event.type === "keydown" && dart.test(_engine._isAffectedByModifiers(event))) {
          this[_keydownTimers][$_set](timerKey, async.Timer.new(_engine.RawKeyboard._kKeydownCancelDurationMac, dart.fn(() => {
            this[_keydownTimers][$remove](timerKey);
            this[_synthesizeKeyup](event);
          }, T$.VoidTovoid())));
        } else {
          this[_keydownTimers][$remove](timerKey);
        }
      }
      this[_lastMetaState] = _engine._getMetaState(event);
      if (event.type === "keydown") {
        if (event.key === "CapsLock") {
          this[_lastMetaState] = (dart.notNull(this[_lastMetaState]) | 32) >>> 0;
        } else if (event.code === "NumLock") {
          this[_lastMetaState] = (dart.notNull(this[_lastMetaState]) | 16) >>> 0;
        } else if (event.key === "ScrollLock") {
          this[_lastMetaState] = (dart.notNull(this[_lastMetaState]) | 64) >>> 0;
        } else if (event.key === "Meta" && ui_web.browser.operatingSystem == ui_web.OperatingSystem.linux) {
          this[_lastMetaState] = (dart.notNull(this[_lastMetaState]) | 8) >>> 0;
        } else if (event.code === "MetaLeft" && event.key === "Process") {
          this[_lastMetaState] = (dart.notNull(this[_lastMetaState]) | 8) >>> 0;
        }
      }
      let eventData = new (G.IdentityMapOfString$dynamic()).from(["type", event.type, "keymap", "web", "code", event.code, "key", event.key, "location", event.location, "metaState", this[_lastMetaState], "keyCode", event.keyCode]);
      _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/keyevent", _engine.RawKeyboard._messageCodec.encodeMessage(eventData), dart.fn(data => {
        if (data == null) {
          return;
        }
        let jsonResponse = T$2.MapOfString$dynamic()[_as](_engine.RawKeyboard._messageCodec.decodeMessage(data));
        if (dart.test(T$.bool()[_as](jsonResponse[$_get]("handled")))) {
          event.preventDefault();
          event.stopPropagation();
        }
      }, T$8.ByteDataNTovoid()));
    }
    [_synthesizeKeyup](event) {
      if (event == null) dart.nullFailed(I[333], 150, 50, "event");
      let eventData = new (G.IdentityMapOfString$dynamic()).from(["type", "keyup", "keymap", "web", "code", event.code, "key", event.key, "location", event.location, "metaState", this[_lastMetaState], "keyCode", event.keyCode]);
      _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/keyevent", _engine.RawKeyboard._messageCodec.encodeMessage(eventData), C[922] || CT.C922);
    }
  };
  (_engine.RawKeyboard.__ = function(_onMacOs) {
    if (_onMacOs == null) dart.nullFailed(I[333], 10, 22, "_onMacOs");
    this[_keydownTimers] = new (G$.IdentityMapOfString$Timer()).new();
    this[_lastMetaState] = 0;
    this[_onMacOs$] = _onMacOs;
    _engine.registerHotRestartListener(dart.fn(() => {
      this.dispose();
    }, T$.VoidTovoid()));
  }).prototype = _engine.RawKeyboard.prototype;
  dart.addRtiResources(_engine.RawKeyboard, ["_engine|RawKeyboard"]);
  dart.setMethodSignature(_engine.RawKeyboard, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    [_shouldDoKeyGuard]: T$.VoidTobool(),
    [_shouldIgnore]: T$11.FlutterHtmlKeyboardEventTobool(),
    handleHtmlEvent: T$10.DomEventTovoid(),
    [_synthesizeKeyup]: T$11.FlutterHtmlKeyboardEventTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RawKeyboard))));
  dart.setStaticMethodSignature(_engine.RawKeyboard, () => ['initialize']);
  dart.setStaticGetterSignature(_engine.RawKeyboard, () => ['instance']);
  dart.setLibraryUri(_engine.RawKeyboard, I[220]);
  dart.setFieldSignature(_engine.RawKeyboard, () => dart.global.Object.setPrototypeOf({
    [_keydownTimers]: {type: T$11.MapOfString$Timer(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_lastMetaState]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_onMacOs$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RawKeyboard))));
  dart.setStaticFieldSignature(_engine.RawKeyboard, () => ['_instance', '_messageCodec', '_kKeydownCancelDurationMac']);
  dart.defineLazy(_engine.RawKeyboard, {
    /*_engine.RawKeyboard._instance*/get _instance() {
      return null;
    },
    set _instance(value) {},
    /*_engine.RawKeyboard._messageCodec*/get _messageCodec() {
      return C[923] || CT.C923;
    },
    /*_engine.RawKeyboard._kKeydownCancelDurationMac*/get _kKeydownCancelDurationMac() {
      return C[902] || CT.C902;
    }
  }, false);
  _engine.Renderer = class Renderer extends core.Object {
    static _internal() {
      {
        let useCanvasKit = null;
        {
          useCanvasKit = false;
        }
        return dart.test(useCanvasKit) ? new _engine.CanvasKitRenderer.new() : new _engine.HtmlRenderer.new();
      }
    }
    static ['_#_internal#tearOff']() {
      return _engine.Renderer._internal();
    }
  };
  (_engine.Renderer[dart.mixinNew] = function() {
  }).prototype = _engine.Renderer.prototype;
  dart.addRtiResources(_engine.Renderer, ["_engine|Renderer"]);
  dart.setStaticMethodSignature(_engine.Renderer, () => ['_internal']);
  dart.setLibraryUri(_engine.Renderer, I[220]);
  _engine.RRectRenderer = class RRectRenderer extends core.Object {
    render(inputRRect, opts) {
      if (inputRRect == null) dart.nullFailed(I[334], 28, 24, "inputRRect");
      let startNewPath = opts && 'startNewPath' in opts ? opts.startNewPath : true;
      if (startNewPath == null) dart.nullFailed(I[334], 29, 13, "startNewPath");
      let reverse = opts && 'reverse' in opts ? opts.reverse : false;
      if (reverse == null) dart.nullFailed(I[334], 29, 39, "reverse");
      let rrect = inputRRect.scaleRadii();
      let left = rrect.left;
      let right = rrect.right;
      let top = rrect.top;
      let bottom = rrect.bottom;
      if (dart.notNull(left) > dart.notNull(right)) {
        left = right;
        right = rrect.left;
      }
      if (dart.notNull(top) > dart.notNull(bottom)) {
        top = bottom;
        bottom = rrect.top;
      }
      let trRadiusX = rrect.trRadiusX[$abs]();
      let tlRadiusX = rrect.tlRadiusX[$abs]();
      let trRadiusY = rrect.trRadiusY[$abs]();
      let tlRadiusY = rrect.tlRadiusY[$abs]();
      let blRadiusX = rrect.blRadiusX[$abs]();
      let brRadiusX = rrect.brRadiusX[$abs]();
      let blRadiusY = rrect.blRadiusY[$abs]();
      let brRadiusY = rrect.brRadiusY[$abs]();
      if (!dart.test(reverse)) {
        if (dart.test(startNewPath)) {
          this.beginPath();
        }
        this.moveTo(dart.notNull(left) + trRadiusX, top);
        this.lineTo(dart.notNull(right) - trRadiusX, top);
        this.ellipse(dart.notNull(right) - trRadiusX, dart.notNull(top) + trRadiusY, trRadiusX, trRadiusY, 0.0, 1.5 * 3.141592653589793, 2.0 * 3.141592653589793, false);
        this.lineTo(right, dart.notNull(bottom) - brRadiusY);
        this.ellipse(dart.notNull(right) - brRadiusX, dart.notNull(bottom) - brRadiusY, brRadiusX, brRadiusY, 0.0, 0.0, 0.5 * 3.141592653589793, false);
        this.lineTo(dart.notNull(left) + blRadiusX, bottom);
        this.ellipse(dart.notNull(left) + blRadiusX, dart.notNull(bottom) - blRadiusY, blRadiusX, blRadiusY, 0.0, 0.5 * 3.141592653589793, 3.141592653589793, false);
        this.lineTo(left, dart.notNull(top) + tlRadiusY);
        this.ellipse(dart.notNull(left) + tlRadiusX, dart.notNull(top) + tlRadiusY, tlRadiusX, tlRadiusY, 0.0, 3.141592653589793, 1.5 * 3.141592653589793, false);
      } else {
        this.moveTo(dart.notNull(right) - trRadiusX, top);
        if (dart.test(startNewPath)) {
          this.beginPath();
        }
        this.lineTo(dart.notNull(left) + tlRadiusX, top);
        this.ellipse(dart.notNull(left) + tlRadiusX, dart.notNull(top) + tlRadiusY, tlRadiusX, tlRadiusY, 0.0, 1.5 * 3.141592653589793, 1 * 3.141592653589793, true);
        this.lineTo(left, dart.notNull(bottom) - blRadiusY);
        this.ellipse(dart.notNull(left) + blRadiusX, dart.notNull(bottom) - blRadiusY, blRadiusX, blRadiusY, 0.0, 1 * 3.141592653589793, 0.5 * 3.141592653589793, true);
        this.lineTo(dart.notNull(right) - brRadiusX, bottom);
        this.ellipse(dart.notNull(right) - brRadiusX, dart.notNull(bottom) - brRadiusY, brRadiusX, brRadiusY, 0.0, 0.5 * 3.141592653589793, 0 * 3.141592653589793, true);
        this.lineTo(right, dart.notNull(top) + trRadiusY);
        this.ellipse(dart.notNull(right) - trRadiusX, dart.notNull(top) + trRadiusY, trRadiusX, trRadiusY, 0.0, 0 * 3.141592653589793, 1.5 * 3.141592653589793, true);
      }
    }
  };
  (_engine.RRectRenderer.new = function() {
    ;
  }).prototype = _engine.RRectRenderer.prototype;
  dart.addRtiResources(_engine.RRectRenderer, ["_engine|RRectRenderer"]);
  dart.setMethodSignature(_engine.RRectRenderer, () => dart.global.Object.setPrototypeOf({render: T$11.RRect__Tovoid$1()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RRectRenderer))));
  dart.setLibraryUri(_engine.RRectRenderer, I[220]);
  var context$0 = dart.privateName(_engine, "RRectToCanvasRenderer.context");
  _engine.RRectToCanvasRenderer = class RRectToCanvasRenderer extends _engine.RRectRenderer {
    get context() {
      return this[context$0];
    }
    set context(value) {
      super.context = value;
    }
    static ['_#new#tearOff'](context) {
      if (context == null) dart.nullFailed(I[334], 183, 30, "context");
      return new _engine.RRectToCanvasRenderer.new(context);
    }
    beginPath() {
      this.context.beginPath();
    }
    moveTo(x, y) {
      if (x == null) dart.nullFailed(I[334], 191, 22, "x");
      if (y == null) dart.nullFailed(I[334], 191, 32, "y");
      _engine['DomCanvasRenderingContext2DExtension|moveTo'](this.context, x, y);
    }
    lineTo(x, y) {
      if (x == null) dart.nullFailed(I[334], 196, 22, "x");
      if (y == null) dart.nullFailed(I[334], 196, 32, "y");
      _engine['DomCanvasRenderingContext2DExtension|lineTo'](this.context, x, y);
    }
    ellipse(centerX, centerY, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise) {
      if (centerX == null) dart.nullFailed(I[334], 201, 23, "centerX");
      if (centerY == null) dart.nullFailed(I[334], 201, 39, "centerY");
      if (radiusX == null) dart.nullFailed(I[334], 201, 55, "radiusX");
      if (radiusY == null) dart.nullFailed(I[334], 201, 71, "radiusY");
      if (rotation == null) dart.nullFailed(I[334], 202, 14, "rotation");
      if (startAngle == null) dart.nullFailed(I[334], 202, 31, "startAngle");
      if (endAngle == null) dart.nullFailed(I[334], 202, 50, "endAngle");
      if (antiClockwise == null) dart.nullFailed(I[334], 202, 65, "antiClockwise");
      _engine.drawEllipse(this.context, centerX, centerY, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise);
    }
  };
  (_engine.RRectToCanvasRenderer.new = function(context) {
    if (context == null) dart.nullFailed(I[334], 183, 30, "context");
    this[context$0] = context;
    ;
  }).prototype = _engine.RRectToCanvasRenderer.prototype;
  dart.addRtiResources(_engine.RRectToCanvasRenderer, ["_engine|RRectToCanvasRenderer"]);
  dart.setMethodSignature(_engine.RRectToCanvasRenderer, () => dart.global.Object.setPrototypeOf({
    beginPath: T$.VoidTovoid(),
    moveTo: T$9.doubleAnddoubleTovoid(),
    lineTo: T$9.doubleAnddoubleTovoid(),
    ellipse: T$11.doubleAnddoubleAnddouble__Tovoid$8()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RRectToCanvasRenderer))));
  dart.setLibraryUri(_engine.RRectToCanvasRenderer, I[220]);
  dart.setFieldSignature(_engine.RRectToCanvasRenderer, () => dart.global.Object.setPrototypeOf({context: {type: T$9.DomCanvasRenderingContext2D(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RRectToCanvasRenderer))));
  var path$7 = dart.privateName(_engine, "RRectToPathRenderer.path");
  _engine.RRectToPathRenderer = class RRectToPathRenderer extends _engine.RRectRenderer {
    get path() {
      return this[path$7];
    }
    set path(value) {
      super.path = value;
    }
    static ['_#new#tearOff'](path) {
      if (path == null) dart.nullFailed(I[334], 210, 28, "path");
      return new _engine.RRectToPathRenderer.new(path);
    }
    beginPath() {
    }
    moveTo(x, y) {
      if (x == null) dart.nullFailed(I[334], 216, 22, "x");
      if (y == null) dart.nullFailed(I[334], 216, 32, "y");
      this.path.moveTo(x, y);
    }
    lineTo(x, y) {
      if (x == null) dart.nullFailed(I[334], 221, 22, "x");
      if (y == null) dart.nullFailed(I[334], 221, 32, "y");
      this.path.lineTo(x, y);
    }
    ellipse(centerX, centerY, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise) {
      if (centerX == null) dart.nullFailed(I[334], 226, 23, "centerX");
      if (centerY == null) dart.nullFailed(I[334], 226, 39, "centerY");
      if (radiusX == null) dart.nullFailed(I[334], 226, 55, "radiusX");
      if (radiusY == null) dart.nullFailed(I[334], 226, 71, "radiusY");
      if (rotation == null) dart.nullFailed(I[334], 227, 14, "rotation");
      if (startAngle == null) dart.nullFailed(I[334], 227, 31, "startAngle");
      if (endAngle == null) dart.nullFailed(I[334], 227, 50, "endAngle");
      if (antiClockwise == null) dart.nullFailed(I[334], 227, 65, "antiClockwise");
      this.path.addArc(new ui.Rect.fromLTRB(dart.notNull(centerX) - dart.notNull(radiusX), dart.notNull(centerY) - dart.notNull(radiusY), dart.notNull(centerX) + dart.notNull(radiusX), dart.notNull(centerY) + dart.notNull(radiusY)), startAngle, dart.test(antiClockwise) ? dart.notNull(startAngle) - dart.notNull(endAngle) : dart.notNull(endAngle) - dart.notNull(startAngle));
    }
  };
  (_engine.RRectToPathRenderer.new = function(path) {
    if (path == null) dart.nullFailed(I[334], 210, 28, "path");
    this[path$7] = path;
    ;
  }).prototype = _engine.RRectToPathRenderer.prototype;
  dart.addRtiResources(_engine.RRectToPathRenderer, ["_engine|RRectToPathRenderer"]);
  dart.setMethodSignature(_engine.RRectToPathRenderer, () => dart.global.Object.setPrototypeOf({
    beginPath: T$.VoidTovoid(),
    moveTo: T$9.doubleAnddoubleTovoid(),
    lineTo: T$9.doubleAnddoubleTovoid(),
    ellipse: T$11.doubleAnddoubleAnddouble__Tovoid$8()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RRectToPathRenderer))));
  dart.setLibraryUri(_engine.RRectToPathRenderer, I[220]);
  dart.setFieldSignature(_engine.RRectToPathRenderer, () => dart.global.Object.setPrototypeOf({path: {type: T$10.Path(), isConst: false, isFinal: true, libraryUri: I[198]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RRectToPathRenderer))));
  var ellipseCallback$ = dart.privateName(_engine, "RRectMetricsRenderer.ellipseCallback");
  var lineToCallback$ = dart.privateName(_engine, "RRectMetricsRenderer.lineToCallback");
  var moveToCallback$ = dart.privateName(_engine, "RRectMetricsRenderer.moveToCallback");
  _engine.RRectMetricsRenderer = class RRectMetricsRenderer extends _engine.RRectRenderer {
    get ellipseCallback() {
      return this[ellipseCallback$];
    }
    set ellipseCallback(value) {
      super.ellipseCallback = value;
    }
    get lineToCallback() {
      return this[lineToCallback$];
    }
    set lineToCallback(value) {
      super.lineToCallback = value;
    }
    get moveToCallback() {
      return this[moveToCallback$];
    }
    set moveToCallback(value) {
      super.moveToCallback = value;
    }
    static ['_#new#tearOff'](opts) {
      let moveToCallback = opts && 'moveToCallback' in opts ? opts.moveToCallback : null;
      let lineToCallback = opts && 'lineToCallback' in opts ? opts.lineToCallback : null;
      let ellipseCallback = opts && 'ellipseCallback' in opts ? opts.ellipseCallback : null;
      return new _engine.RRectMetricsRenderer.new({moveToCallback: moveToCallback, lineToCallback: lineToCallback, ellipseCallback: ellipseCallback});
    }
    beginPath() {
    }
    ellipse(centerX, centerY, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise) {
      if (centerX == null) dart.nullFailed(I[334], 250, 23, "centerX");
      if (centerY == null) dart.nullFailed(I[334], 250, 39, "centerY");
      if (radiusX == null) dart.nullFailed(I[334], 250, 55, "radiusX");
      if (radiusY == null) dart.nullFailed(I[334], 250, 71, "radiusY");
      if (rotation == null) dart.nullFailed(I[334], 250, 87, "rotation");
      if (startAngle == null) dart.nullFailed(I[334], 250, 104, "startAngle");
      if (endAngle == null) dart.nullFailed(I[334], 250, 123, "endAngle");
      if (antiClockwise == null) dart.nullFailed(I[334], 250, 138, "antiClockwise");
      return dart.nullCheck(this.ellipseCallback)(centerX, centerY, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise);
    }
    lineTo(x, y) {
      if (x == null) dart.nullFailed(I[334], 254, 22, "x");
      if (y == null) dart.nullFailed(I[334], 254, 32, "y");
      return dart.nullCheck(this.lineToCallback)(x, y);
    }
    moveTo(x, y) {
      if (x == null) dart.nullFailed(I[334], 257, 22, "x");
      if (y == null) dart.nullFailed(I[334], 257, 32, "y");
      return dart.nullCheck(this.moveToCallback)(x, y);
    }
  };
  (_engine.RRectMetricsRenderer.new = function(opts) {
    let moveToCallback = opts && 'moveToCallback' in opts ? opts.moveToCallback : null;
    let lineToCallback = opts && 'lineToCallback' in opts ? opts.lineToCallback : null;
    let ellipseCallback = opts && 'ellipseCallback' in opts ? opts.ellipseCallback : null;
    this[moveToCallback$] = moveToCallback;
    this[lineToCallback$] = lineToCallback;
    this[ellipseCallback$] = ellipseCallback;
    ;
  }).prototype = _engine.RRectMetricsRenderer.prototype;
  dart.addRtiResources(_engine.RRectMetricsRenderer, ["_engine|RRectMetricsRenderer"]);
  dart.setMethodSignature(_engine.RRectMetricsRenderer, () => dart.global.Object.setPrototypeOf({
    beginPath: T$.VoidTovoid(),
    ellipse: T$11.doubleAnddoubleAnddouble__Tovoid$8(),
    lineTo: T$9.doubleAnddoubleTovoid(),
    moveTo: T$9.doubleAnddoubleTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RRectMetricsRenderer))));
  dart.setLibraryUri(_engine.RRectMetricsRenderer, I[220]);
  dart.setFieldSignature(_engine.RRectMetricsRenderer, () => dart.global.Object.setPrototypeOf({
    ellipseCallback: {type: T$11.doubleAnddoubleAnddouble__ToNvoid(), isConst: false, isFinal: true},
    lineToCallback: {type: T$11.doubleAnddoubleToNvoid(), isConst: false, isFinal: true},
    moveToCallback: {type: T$11.doubleAnddoubleToNvoid(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RRectMetricsRenderer))));
  var program$ = dart.privateName(_engine, "GlProgram.program");
  _engine.GlProgram = class GlProgram extends core.Object {
    get program() {
      return this[program$];
    }
    set program(value) {
      super.program = value;
    }
    static ['_#new#tearOff'](program) {
      if (program == null) dart.nullFailed(I[335], 377, 18, "program");
      return new _engine.GlProgram.new(program);
    }
  };
  (_engine.GlProgram.new = function(program) {
    if (program == null) dart.nullFailed(I[335], 377, 18, "program");
    this[program$] = program;
    ;
  }).prototype = _engine.GlProgram.prototype;
  dart.addRtiResources(_engine.GlProgram, ["_engine|GlProgram"]);
  dart.setLibraryUri(_engine.GlProgram, I[220]);
  dart.setFieldSignature(_engine.GlProgram, () => dart.global.Object.setPrototypeOf({program: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.GlProgram))));
  var glContext = dart.privateName(_engine, "GlContext.glContext");
  var isOffscreen = dart.privateName(_engine, "GlContext.isOffscreen");
  var _kCompileStatus = dart.privateName(_engine, "_kCompileStatus");
  var _kArrayBuffer = dart.privateName(_engine, "_kArrayBuffer");
  var _kElementArrayBuffer = dart.privateName(_engine, "_kElementArrayBuffer");
  var _kStaticDraw = dart.privateName(_engine, "_kStaticDraw");
  var _kFloat = dart.privateName(_engine, "_kFloat");
  var _kColorBufferBit = dart.privateName(_engine, "_kColorBufferBit");
  var _kTexture2D = dart.privateName(_engine, "_kTexture2D");
  var _kTextureWrapS = dart.privateName(_engine, "_kTextureWrapS");
  var _kTextureWrapT = dart.privateName(_engine, "_kTextureWrapT");
  var _kRepeat = dart.privateName(_engine, "_kRepeat");
  var _kClampToEdge = dart.privateName(_engine, "_kClampToEdge");
  var _kMirroredRepeat = dart.privateName(_engine, "_kMirroredRepeat");
  var _kTriangles = dart.privateName(_engine, "_kTriangles");
  var _kLinkStatus = dart.privateName(_engine, "_kLinkStatus");
  var _kUnsignedByte = dart.privateName(_engine, "_kUnsignedByte");
  var _kUnsignedShort = dart.privateName(_engine, "_kUnsignedShort");
  var _kRGBA = dart.privateName(_engine, "_kRGBA");
  var _kLinear = dart.privateName(_engine, "_kLinear");
  var _kTextureMinFilter = dart.privateName(_engine, "_kTextureMinFilter");
  var _kTexture0 = dart.privateName(_engine, "_kTexture0");
  var _widthInPixels = dart.privateName(_engine, "_widthInPixels");
  var _heightInPixels = dart.privateName(_engine, "_heightInPixels");
  var _createShader = dart.privateName(_engine, "_createShader");
  var _getExtension = dart.privateName(_engine, "_getExtension");
  var _triangleTypeFromMode = dart.privateName(_engine, "_triangleTypeFromMode");
  _engine.GlContext = class GlContext extends core.Object {
    get glContext() {
      return this[glContext];
    }
    set glContext(value) {
      super.glContext = value;
    }
    get isOffscreen() {
      return this[isOffscreen];
    }
    set isOffscreen(value) {
      super.isOffscreen = value;
    }
    static new(offScreenCanvas) {
      if (offScreenCanvas == null) dart.nullFailed(I[335], 383, 37, "offScreenCanvas");
      return dart.test(_engine.OffScreenCanvas.supported) ? new _engine.GlContext._fromOffscreenCanvas(dart.nullCheck(offScreenCanvas.offScreenCanvas)) : new _engine.GlContext._fromCanvasElement(dart.nullCheck(offScreenCanvas.canvasElement), _engine.webGLVersion === 1);
    }
    static ['_#new#tearOff'](offScreenCanvas) {
      if (offScreenCanvas == null) dart.nullFailed(I[335], 383, 37, "offScreenCanvas");
      return _engine.GlContext.new(offScreenCanvas);
    }
    static ['_#_fromOffscreenCanvas#tearOff'](canvas) {
      if (canvas == null) dart.nullFailed(I[335], 390, 53, "canvas");
      return new _engine.GlContext._fromOffscreenCanvas(canvas);
    }
    static ['_#_fromCanvasElement#tearOff'](canvas, useWebGl1) {
      if (canvas == null) dart.nullFailed(I[335], 397, 49, "canvas");
      if (useWebGl1 == null) dart.nullFailed(I[335], 397, 62, "useWebGl1");
      return new _engine.GlContext._fromCanvasElement(canvas, useWebGl1);
    }
    static set _programCache(_programCache$35param) {
      if (_programCache$35param == null) dart.nullFailed(I[335], 431, 39, "_programCache#param");
      _engine.GlContext['_#_programCache#isSet'] = true;
      _engine.GlContext['_#_programCache'] = _programCache$35param;
    }
    static get _programCache() {
      let t$36588;
      return dart.test(_engine.GlContext['_#_programCache#isSet']) ? (t$36588 = _engine.GlContext['_#_programCache'], t$36588) : dart.throw(new _internal.LateError.fieldNI("_programCache"));
    }
    setViewportSize(width, height) {
      if (width == null) dart.nullFailed(I[335], 433, 28, "width");
      if (height == null) dart.nullFailed(I[335], 433, 39, "height");
      this[_widthInPixels] = width;
      this[_heightInPixels] = height;
    }
    drawImage(context, left, top) {
      if (context == null) dart.nullFailed(I[335], 439, 46, "context");
      if (left == null) dart.nullFailed(I[335], 440, 14, "left");
      if (top == null) dart.nullFailed(I[335], 440, 27, "top");
      js_util.callMethod(T$.void(), context, "drawImage", [this[_canvas$], 0, 0, this[_widthInPixels], this[_heightInPixels], left, top, this[_widthInPixels], this[_heightInPixels]]);
    }
    cacheProgram(vertexShaderSource, fragmentShaderSource) {
      if (vertexShaderSource == null) dart.nullFailed(I[335], 449, 14, "vertexShaderSource");
      if (fragmentShaderSource == null) dart.nullFailed(I[335], 449, 41, "fragmentShaderSource");
      let cacheKey = dart.str(vertexShaderSource) + "||" + dart.str(fragmentShaderSource);
      let cachedProgram = _engine.GlContext._programCache[$_get](cacheKey);
      if (cachedProgram == null) {
        let vertexShader = this.compileShader("VERTEX_SHADER", vertexShaderSource);
        let fragmentShader = this.compileShader("FRAGMENT_SHADER", fragmentShaderSource);
        let program = this.createProgram();
        this.attachShader(program, vertexShader);
        this.attachShader(program, fragmentShader);
        this.linkProgram(program);
        cachedProgram = new _engine.GlProgram.new(program);
        _engine.GlContext._programCache[$_set](cacheKey, cachedProgram);
      }
      return cachedProgram;
    }
    compileShader(shaderType, source) {
      if (shaderType == null) dart.nullFailed(I[335], 468, 31, "shaderType");
      if (source == null) dart.nullFailed(I[335], 468, 50, "source");
      let shader = this[_createShader](shaderType);
      if (shader == null) {
        dart.throw(core.Exception.new(this.error));
      }
      js_util.callMethod(T$.void(), this.glContext, "shaderSource", [shader, source]);
      js_util.callMethod(T$.void(), this.glContext, "compileShader", [shader]);
      let shaderStatus = js_util.callMethod(T$.bool(), this.glContext, "getShaderParameter", [shader, this.compileStatus]);
      if (!dart.test(shaderStatus)) {
        dart.throw(core.Exception.new("Shader compilation failed: " + dart.str(this.getShaderInfoLog(shader))));
      }
      return shader;
    }
    createProgram() {
      return T$.Object()[_as](this.glContext.createProgram());
    }
    attachShader(program, shader) {
      if (shader == null) dart.nullFailed(I[335], 488, 45, "shader");
      js_util.callMethod(T$.void(), this.glContext, "attachShader", [program, shader]);
    }
    linkProgram(program) {
      if (program == null) dart.nullFailed(I[335], 492, 27, "program");
      js_util.callMethod(T$.void(), this.glContext, "linkProgram", [program]);
      let programStatus = js_util.callMethod(T$.bool(), this.glContext, "getProgramParameter", [program, this.kLinkStatus]);
      if (!dart.test(programStatus)) {
        dart.throw(core.Exception.new(this.getProgramInfoLog(program)));
      }
    }
    useProgram(program) {
      if (program == null) dart.nullFailed(I[335], 504, 29, "program");
      js_util.callMethod(T$.void(), this.glContext, "useProgram", [program.program]);
    }
    createBuffer() {
      return this.glContext.createBuffer();
    }
    bindArrayBuffer(buffer) {
      js_util.callMethod(T$.void(), this.glContext, "bindBuffer", [this.kArrayBuffer, buffer]);
    }
    createVertexArray() {
      return this.glContext.createVertexArray();
    }
    bindVertexArray(vertexObjectArray) {
      if (vertexObjectArray == null) dart.nullFailed(I[335], 518, 31, "vertexObjectArray");
      js_util.callMethod(T$.void(), this.glContext, "bindVertexArray", [vertexObjectArray]);
    }
    unbindVertexArray() {
      this.glContext.bindVertexArray(null);
    }
    bindElementArrayBuffer(buffer) {
      js_util.callMethod(T$.void(), this.glContext, "bindBuffer", [this.kElementArrayBuffer, buffer]);
    }
    createTexture() {
      return this.glContext.createTexture();
    }
    generateMipmap(target) {
      return js_util.callMethod(T$.void(), this.glContext, "generateMipmap", [target]);
    }
    bindTexture(target, buffer) {
      js_util.callMethod(T$.void(), this.glContext, "bindTexture", [target, buffer]);
    }
    activeTexture(textureUnit) {
      if (textureUnit == null) dart.nullFailed(I[335], 542, 29, "textureUnit");
      this.glContext.activeTexture(textureUnit);
    }
    texImage2D(target, level, internalFormat, format, dataType, pixels, opts) {
      if (level == null) dart.nullFailed(I[335], 546, 39, "level");
      let width = opts && 'width' in opts ? opts.width : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let border = opts && 'border' in opts ? opts.border : 0;
      if (border == null) dart.nullFailed(I[335], 548, 53, "border");
      if (width == null) {
        js_util.callMethod(T$.void(), this.glContext, "texImage2D", [target, level, internalFormat, format, dataType, pixels]);
      } else {
        js_util.callMethod(T$.void(), this.glContext, "texImage2D", [target, level, internalFormat, width, height, border, format, dataType, pixels]);
      }
    }
    texParameteri(target, parameterName, value) {
      js_util.callMethod(T$.void(), this.glContext, "texParameteri", [target, parameterName, value]);
    }
    deleteBuffer(buffer) {
      if (buffer == null) dart.nullFailed(I[335], 564, 28, "buffer");
      js_util.callMethod(T$.void(), this.glContext, "deleteBuffer", [buffer]);
    }
    bufferData(data, type) {
      js_util.callMethod(T$.void(), this.glContext, "bufferData", [this.kArrayBuffer, data, type]);
    }
    bufferElementData(data, type) {
      js_util.callMethod(T$.void(), this.glContext, "bufferData", [this.kElementArrayBuffer, data, type]);
    }
    enableVertexAttribArray(index) {
      js_util.callMethod(T$.void(), this.glContext, "enableVertexAttribArray", [index]);
    }
    clear() {
      js_util.callMethod(T$.void(), this.glContext, "clear", [this.kColorBufferBit]);
    }
    dispose() {
      let loseContextExtension = this[_getExtension]("WEBGL_lose_context");
      if (loseContextExtension != null) {
        loseContextExtension.loseContext();
      }
    }
    deleteProgram(program) {
      if (program == null) dart.nullFailed(I[335], 597, 29, "program");
      js_util.callMethod(T$.void(), this.glContext, "deleteProgram", [program]);
    }
    deleteShader(shader) {
      if (shader == null) dart.nullFailed(I[335], 601, 28, "shader");
      js_util.callMethod(T$.void(), this.glContext, "deleteShader", [shader]);
    }
    [_getExtension](extensionName) {
      if (extensionName == null) dart.nullFailed(I[335], 605, 32, "extensionName");
      return this.glContext.getExtension(extensionName);
    }
    drawTriangles(triangleCount, vertexMode) {
      if (triangleCount == null) dart.nullFailed(I[335], 608, 26, "triangleCount");
      if (vertexMode == null) dart.nullFailed(I[335], 608, 55, "vertexMode");
      let mode = this[_triangleTypeFromMode](vertexMode);
      js_util.callMethod(T$.void(), this.glContext, "drawArrays", [mode, 0, triangleCount]);
    }
    drawElements(type, indexCount, indexType) {
      if (indexCount == null) dart.nullFailed(I[335], 613, 39, "indexCount");
      js_util.callMethod(T$.void(), this.glContext, "drawElements", [type, indexCount, indexType, 0]);
    }
    viewport(x, y, width, height) {
      if (x == null) dart.nullFailed(I[335], 619, 24, "x");
      if (y == null) dart.nullFailed(I[335], 619, 34, "y");
      if (width == null) dart.nullFailed(I[335], 619, 44, "width");
      if (height == null) dart.nullFailed(I[335], 619, 58, "height");
      this.glContext.viewport(x, y, width, height);
    }
    [_triangleTypeFromMode](mode) {
      if (mode == null) dart.nullFailed(I[335], 623, 46, "mode");
      switch (mode) {
        case C[508] || CT.C508:
          {
            return this.kTriangles;
          }
        case C[510] || CT.C510:
          {
            return this.kTriangleFan;
          }
        case C[509] || CT.C509:
          {
            return this.kTriangleStrip;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
    [_createShader](shaderType) {
      if (shaderType == null) dart.nullFailed(I[335], 634, 32, "shaderType");
      return this.glContext.createShader(js_util.getProperty(T$.ObjectN(), this.glContext, shaderType));
    }
    get error() {
      return this.glContext.getError();
    }
    get compileStatus() {
      let t$36588;
      t$36588 = this[_kCompileStatus];
      return t$36588 == null ? this[_kCompileStatus] = js_util.getProperty(T$.ObjectN(), this.glContext, "COMPILE_STATUS") : t$36588;
    }
    get kArrayBuffer() {
      let t$36588;
      t$36588 = this[_kArrayBuffer];
      return t$36588 == null ? this[_kArrayBuffer] = js_util.getProperty(T$.ObjectN(), this.glContext, "ARRAY_BUFFER") : t$36588;
    }
    get kElementArrayBuffer() {
      let t$36588;
      t$36588 = this[_kElementArrayBuffer];
      return t$36588 == null ? this[_kElementArrayBuffer] = js_util.getProperty(T$.ObjectN(), this.glContext, "ELEMENT_ARRAY_BUFFER") : t$36588;
    }
    get kLinkStatus() {
      let t$36588;
      t$36588 = this[_kLinkStatus];
      return t$36588 == null ? this[_kLinkStatus] = js_util.getProperty(T$.Object(), this.glContext, "LINK_STATUS") : t$36588;
    }
    get kFloat() {
      let t$36588;
      t$36588 = this[_kFloat];
      return t$36588 == null ? this[_kFloat] = js_util.getProperty(T$.Object(), this.glContext, "FLOAT") : t$36588;
    }
    get kRGBA() {
      let t$36588;
      t$36588 = this[_kRGBA];
      return t$36588 == null ? this[_kRGBA] = js_util.getProperty(T$.ObjectN(), this.glContext, "RGBA") : t$36588;
    }
    get kUnsignedByte() {
      let t$36588;
      t$36588 = this[_kUnsignedByte];
      return t$36588 == null ? this[_kUnsignedByte] = js_util.getProperty(T$.Object(), this.glContext, "UNSIGNED_BYTE") : t$36588;
    }
    get kUnsignedShort() {
      let t$36588;
      t$36588 = this[_kUnsignedShort];
      return t$36588 == null ? this[_kUnsignedShort] = js_util.getProperty(T$.ObjectN(), this.glContext, "UNSIGNED_SHORT") : t$36588;
    }
    get kStaticDraw() {
      let t$36588;
      t$36588 = this[_kStaticDraw];
      return t$36588 == null ? this[_kStaticDraw] = js_util.getProperty(T$.ObjectN(), this.glContext, "STATIC_DRAW") : t$36588;
    }
    get kTriangles() {
      let t$36588;
      t$36588 = this[_kTriangles];
      return t$36588 == null ? this[_kTriangles] = js_util.getProperty(T$.Object(), this.glContext, "TRIANGLES") : t$36588;
    }
    get kTriangleFan() {
      let t$36588;
      t$36588 = this[_kTriangles];
      return t$36588 == null ? this[_kTriangles] = js_util.getProperty(T$.Object(), this.glContext, "TRIANGLE_FAN") : t$36588;
    }
    get kTriangleStrip() {
      let t$36588;
      t$36588 = this[_kTriangles];
      return t$36588 == null ? this[_kTriangles] = js_util.getProperty(T$.Object(), this.glContext, "TRIANGLE_STRIP") : t$36588;
    }
    get kColorBufferBit() {
      let t$36588;
      t$36588 = this[_kColorBufferBit];
      return t$36588 == null ? this[_kColorBufferBit] = js_util.getProperty(T$.ObjectN(), this.glContext, "COLOR_BUFFER_BIT") : t$36588;
    }
    get kTexture2D() {
      let t$36588;
      t$36588 = this[_kTexture2D];
      return t$36588 == null ? this[_kTexture2D] = js_util.getProperty(T$.ObjectN(), this.glContext, "TEXTURE_2D") : t$36588;
    }
    get kTexture0() {
      let t$36588;
      t$36588 = this[_kTexture0];
      return t$36588 == null ? this[_kTexture0] = js_util.getProperty(T$.double(), this.glContext, "TEXTURE0") : t$36588;
    }
    get kTextureWrapS() {
      let t$36588;
      t$36588 = this[_kTextureWrapS];
      return t$36588 == null ? this[_kTextureWrapS] = js_util.getProperty(T$.ObjectN(), this.glContext, "TEXTURE_WRAP_S") : t$36588;
    }
    get kTextureWrapT() {
      let t$36588;
      t$36588 = this[_kTextureWrapT];
      return t$36588 == null ? this[_kTextureWrapT] = js_util.getProperty(T$.ObjectN(), this.glContext, "TEXTURE_WRAP_T") : t$36588;
    }
    get kRepeat() {
      let t$36588;
      t$36588 = this[_kRepeat];
      return t$36588 == null ? this[_kRepeat] = js_util.getProperty(T$.ObjectN(), this.glContext, "REPEAT") : t$36588;
    }
    get kClampToEdge() {
      let t$36588;
      t$36588 = this[_kClampToEdge];
      return t$36588 == null ? this[_kClampToEdge] = js_util.getProperty(T$.ObjectN(), this.glContext, "CLAMP_TO_EDGE") : t$36588;
    }
    get kMirroredRepeat() {
      let t$36588;
      t$36588 = this[_kMirroredRepeat];
      return t$36588 == null ? this[_kMirroredRepeat] = js_util.getProperty(T$.ObjectN(), this.glContext, "MIRRORED_REPEAT") : t$36588;
    }
    get kLinear() {
      let t$36588;
      t$36588 = this[_kLinear];
      return t$36588 == null ? this[_kLinear] = js_util.getProperty(T$.ObjectN(), this.glContext, "LINEAR") : t$36588;
    }
    get kTextureMinFilter() {
      let t$36588;
      t$36588 = this[_kTextureMinFilter];
      return t$36588 == null ? this[_kTextureMinFilter] = js_util.getProperty(T$.ObjectN(), this.glContext, "TEXTURE_MIN_FILTER") : t$36588;
    }
    getUniformLocation(program, uniformName) {
      if (program == null) dart.nullFailed(I[335], 709, 36, "program");
      if (uniformName == null) dart.nullFailed(I[335], 709, 52, "uniformName");
      let res = js_util.callMethod(T$.ObjectN(), this.glContext, "getUniformLocation", [program, uniformName]);
      if (res == null) {
        dart.throw(core.Exception.new(dart.str(uniformName) + " not found"));
      } else {
        return res;
      }
    }
    containsUniform(program, uniformName) {
      if (program == null) dart.nullFailed(I[335], 720, 31, "program");
      if (uniformName == null) dart.nullFailed(I[335], 720, 47, "uniformName");
      let res = js_util.callMethod(T$.ObjectN(), this.glContext, "getUniformLocation", [program, uniformName]);
      return res != null;
    }
    getAttributeLocation(program, attribName) {
      if (program == null) dart.nullFailed(I[335], 727, 38, "program");
      if (attribName == null) dart.nullFailed(I[335], 727, 54, "attribName");
      let res = js_util.callMethod(T$.ObjectN(), this.glContext, "getAttribLocation", [program, attribName]);
      if (res == null) {
        dart.throw(core.Exception.new(dart.str(attribName) + " not found"));
      } else {
        return res;
      }
    }
    setUniform1f(uniform, value) {
      if (uniform == null) dart.nullFailed(I[335], 738, 28, "uniform");
      if (value == null) dart.nullFailed(I[335], 738, 44, "value");
      js_util.callMethod(T$.void(), this.glContext, "uniform1f", [uniform, value]);
    }
    setUniform2f(uniform, value1, value2) {
      if (uniform == null) dart.nullFailed(I[335], 743, 28, "uniform");
      if (value1 == null) dart.nullFailed(I[335], 743, 44, "value1");
      if (value2 == null) dart.nullFailed(I[335], 743, 59, "value2");
      js_util.callMethod(T$.void(), this.glContext, "uniform2f", [uniform, value1, value2]);
    }
    setUniform4f(uniform, value1, value2, value3, value4) {
      if (uniform == null) dart.nullFailed(I[335], 748, 28, "uniform");
      if (value1 == null) dart.nullFailed(I[335], 748, 44, "value1");
      if (value2 == null) dart.nullFailed(I[335], 748, 59, "value2");
      if (value3 == null) dart.nullFailed(I[335], 748, 74, "value3");
      if (value4 == null) dart.nullFailed(I[335], 749, 14, "value4");
      js_util.callMethod(T$.void(), this.glContext, "uniform4f", [uniform, value1, value2, value3, value4]);
    }
    setUniformMatrix4fv(uniform, transpose, value) {
      if (uniform == null) dart.nullFailed(I[335], 755, 35, "uniform");
      if (transpose == null) dart.nullFailed(I[335], 755, 49, "transpose");
      if (value == null) dart.nullFailed(I[335], 755, 72, "value");
      js_util.callMethod(T$.void(), this.glContext, "uniformMatrix4fv", [uniform, transpose, value]);
    }
    getShaderInfoLog(glShader) {
      if (glShader == null) dart.nullFailed(I[335], 761, 35, "glShader");
      return js_util.callMethod(T$.ObjectN(), this.glContext, "getShaderInfoLog", [glShader]);
    }
    getProgramInfoLog(glProgram) {
      if (glProgram == null) dart.nullFailed(I[335], 767, 36, "glProgram");
      return js_util.callMethod(T$.StringN(), this.glContext, "getProgramInfoLog", [glProgram]);
    }
    get drawingBufferWidth() {
      return js_util.getProperty(T$.intN(), this.glContext, "drawingBufferWidth");
    }
    get drawingBufferHeight() {
      return js_util.getProperty(T$.intN(), this.glContext, "drawingBufferWidth");
    }
    readImageData() {
      let bufferWidth = dart.nullCheck(this[_widthInPixels]);
      let bufferHeight = dart.nullCheck(this[_heightInPixels]);
      if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit || ui_web.browser.browserEngine == ui_web.BrowserEngine.firefox) {
        let pixels = _native_typed_data.NativeUint8List.new(bufferWidth * bufferHeight * 4);
        js_util.callMethod(T$.void(), this.glContext, "readPixels", [0, 0, bufferWidth, bufferHeight, this.kRGBA, this.kUnsignedByte, pixels]);
        return _engine.createDomImageData(_native_typed_data.NativeUint8ClampedList.fromList(pixels), bufferWidth, bufferHeight);
      } else {
        let pixels = _native_typed_data.NativeUint8ClampedList.new(bufferWidth * bufferHeight * 4);
        js_util.callMethod(T$.void(), this.glContext, "readPixels", [0, 0, bufferWidth, bufferHeight, this.kRGBA, this.kUnsignedByte, pixels]);
        return _engine.createDomImageData(pixels, bufferWidth, bufferHeight);
      }
    }
    readPatternData(isOpaque) {
      if (isOpaque == null) dart.nullFailed(I[335], 802, 32, "isOpaque");
      if (this[_canvas$] != null && dart.test(js_util.hasProperty(dart.nullCheck(this[_canvas$]), "transferToImageBitmap")) && dart.test(isOpaque)) {
        dart.nullCheck(this[_canvas$]).getContext("webgl2");
        let imageBitmap = dart.nullCheck(this[_canvas$]).transferToImageBitmap();
        return imageBitmap;
      } else {
        let canvas = _engine.createDomCanvasElement({width: this[_widthInPixels], height: this[_heightInPixels]});
        let ctx = _engine['DomCanvasElementExtension|get#context2D'](canvas);
        this.drawImage(ctx, 0.0, 0.0);
        return canvas;
      }
    }
    toImageUrl() {
      let canvas = _engine.createDomCanvasElement({width: this[_widthInPixels], height: this[_heightInPixels]});
      let ctx = _engine['DomCanvasElementExtension|get#context2D'](canvas);
      this.drawImage(ctx, 0.0, 0.0);
      let dataUrl = _engine['DomCanvasElementExtension|toDataURL'](canvas);
      _engine['DomCanvasElementExtension|set#width'](canvas, 0.0);
      _engine['DomCanvasElementExtension|set#height'](canvas, 0.0);
      return dataUrl;
    }
  };
  (_engine.GlContext._fromOffscreenCanvas = function(canvas) {
    if (canvas == null) dart.nullFailed(I[335], 390, 53, "canvas");
    this[_kCompileStatus] = null;
    this[_kArrayBuffer] = null;
    this[_kElementArrayBuffer] = null;
    this[_kStaticDraw] = null;
    this[_kFloat] = null;
    this[_kColorBufferBit] = null;
    this[_kTexture2D] = null;
    this[_kTextureWrapS] = null;
    this[_kTextureWrapT] = null;
    this[_kRepeat] = null;
    this[_kClampToEdge] = null;
    this[_kMirroredRepeat] = null;
    this[_kTriangles] = null;
    this[_kLinkStatus] = null;
    this[_kUnsignedByte] = null;
    this[_kUnsignedShort] = null;
    this[_kRGBA] = null;
    this[_kLinear] = null;
    this[_kTextureMinFilter] = null;
    this[_kTexture0] = null;
    this[_canvas$] = null;
    this[_widthInPixels] = null;
    this[_heightInPixels] = null;
    this[glContext] = dart.nullCheck(_engine['DomOffscreenCanvasExtension|getContext'](canvas, "webgl2", new (G.IdentityMapOfString$dynamic()).from(["premultipliedAlpha", false])));
    this[isOffscreen] = true;
    _engine.GlContext._programCache = new (G$.IdentityMapOfString$GlProgramN()).new();
    this[_canvas$] = canvas;
  }).prototype = _engine.GlContext.prototype;
  (_engine.GlContext._fromCanvasElement = function(canvas, useWebGl1) {
    if (canvas == null) dart.nullFailed(I[335], 397, 49, "canvas");
    if (useWebGl1 == null) dart.nullFailed(I[335], 397, 62, "useWebGl1");
    this[_kCompileStatus] = null;
    this[_kArrayBuffer] = null;
    this[_kElementArrayBuffer] = null;
    this[_kStaticDraw] = null;
    this[_kFloat] = null;
    this[_kColorBufferBit] = null;
    this[_kTexture2D] = null;
    this[_kTextureWrapS] = null;
    this[_kTextureWrapT] = null;
    this[_kRepeat] = null;
    this[_kClampToEdge] = null;
    this[_kMirroredRepeat] = null;
    this[_kTriangles] = null;
    this[_kLinkStatus] = null;
    this[_kUnsignedByte] = null;
    this[_kUnsignedShort] = null;
    this[_kRGBA] = null;
    this[_kLinear] = null;
    this[_kTextureMinFilter] = null;
    this[_kTexture0] = null;
    this[_canvas$] = null;
    this[_widthInPixels] = null;
    this[_heightInPixels] = null;
    this[glContext] = dart.nullCheck(_engine['DomCanvasElementExtension|getContext'](canvas, dart.test(useWebGl1) ? "webgl" : "webgl2", new (G.IdentityMapOfString$dynamic()).from(["premultipliedAlpha", false])));
    this[isOffscreen] = false;
    _engine.GlContext._programCache = new (G$.IdentityMapOfString$GlProgramN()).new();
    this[_canvas$] = canvas;
  }).prototype = _engine.GlContext.prototype;
  dart.addRtiResources(_engine.GlContext, ["_engine|GlContext"]);
  dart.setMethodSignature(_engine.GlContext, () => dart.global.Object.setPrototypeOf({
    setViewportSize: T$.intAndintTovoid(),
    drawImage: T$11.DomCanvasRenderingContext2DAnddoubleAnddoubleTovoid(),
    cacheProgram: T$11.StringAndStringToGlProgram(),
    compileShader: T$11.StringAndStringToObject(),
    createProgram: T$.VoidToObject(),
    attachShader: T$11.ObjectNAndObjectTovoid(),
    linkProgram: T$.ObjectTovoid(),
    useProgram: T$11.GlProgramTovoid(),
    createBuffer: T$2.VoidToObjectN(),
    bindArrayBuffer: T$.ObjectNTovoid(),
    createVertexArray: T$2.VoidToObjectN(),
    bindVertexArray: T$.ObjectTovoid(),
    unbindVertexArray: T$.VoidTovoid(),
    bindElementArrayBuffer: T$.ObjectNTovoid(),
    createTexture: T$2.VoidToObjectN(),
    generateMipmap: T$.dynamicTovoid(),
    bindTexture: T$11.dynamicAndObjectNTovoid(),
    activeTexture: T$9.doubleTovoid(),
    texImage2D: T$11.dynamicAndintAnddynamic__Tovoid(),
    texParameteri: T$0.dynamicAnddynamicAnddynamicTovoid(),
    deleteBuffer: T$.ObjectTovoid(),
    bufferData: T$11.TypedDataNAnddynamicTovoid(),
    bufferElementData: T$11.TypedDataNAnddynamicTovoid(),
    enableVertexAttribArray: T$.dynamicTovoid(),
    clear: T$.VoidTovoid(),
    dispose: T$.VoidTovoid(),
    deleteProgram: T$.ObjectTovoid(),
    deleteShader: T$.ObjectTovoid(),
    [_getExtension]: T$4.StringToObjectN(),
    drawTriangles: T$11.intAndVertexModeTovoid(),
    drawElements: T$11.dynamicAndintAnddynamicTovoid(),
    viewport: T$10.doubleAnddoubleAnddouble__Tovoid$3(),
    [_triangleTypeFromMode]: T$11.VertexModeToObject(),
    [_createShader]: T$4.StringToObjectN(),
    getUniformLocation: T$11.ObjectAndStringToObject(),
    containsUniform: T$11.ObjectAndStringTobool(),
    getAttributeLocation: T$11.ObjectAndStringToObject(),
    setUniform1f: T$11.ObjectAnddoubleTovoid(),
    setUniform2f: T$11.ObjectAnddoubleAnddoubleTovoid(),
    setUniform4f: T$11.ObjectAnddoubleAnddouble__Tovoid(),
    setUniformMatrix4fv: T$11.ObjectAndboolAndFloat32ListTovoid(),
    getShaderInfoLog: T$11.ObjectToObjectN(),
    getProgramInfoLog: T$2.ObjectToStringN(),
    readImageData: T$11.VoidToDomImageData(),
    readPatternData: T$11.boolToObjectN(),
    toImageUrl: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.GlContext))));
  dart.setStaticMethodSignature(_engine.GlContext, () => ['new']);
  dart.setGetterSignature(_engine.GlContext, () => dart.global.Object.setPrototypeOf({
    error: T$.ObjectN(),
    compileStatus: T$.ObjectN(),
    kArrayBuffer: T$.ObjectN(),
    kElementArrayBuffer: T$.ObjectN(),
    kLinkStatus: T$.Object(),
    kFloat: T$.Object(),
    kRGBA: T$.ObjectN(),
    kUnsignedByte: T$.Object(),
    kUnsignedShort: T$.ObjectN(),
    kStaticDraw: T$.ObjectN(),
    kTriangles: T$.Object(),
    kTriangleFan: T$.Object(),
    kTriangleStrip: T$.Object(),
    kColorBufferBit: T$.ObjectN(),
    kTexture2D: T$.ObjectN(),
    kTexture0: T$.double(),
    kTextureWrapS: T$.ObjectN(),
    kTextureWrapT: T$.ObjectN(),
    kRepeat: T$.ObjectN(),
    kClampToEdge: T$.ObjectN(),
    kMirroredRepeat: T$.ObjectN(),
    kLinear: T$.ObjectN(),
    kTextureMinFilter: T$.ObjectN(),
    drawingBufferWidth: T$.intN(),
    drawingBufferHeight: T$.intN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.GlContext))));
  dart.setStaticGetterSignature(_engine.GlContext, () => ['_programCache']);
  dart.setStaticSetterSignature(_engine.GlContext, () => ['_programCache']);
  dart.setLibraryUri(_engine.GlContext, I[220]);
  dart.setFieldSignature(_engine.GlContext, () => dart.global.Object.setPrototypeOf({
    glContext: {type: T$.Object(), isConst: false, isFinal: true, libraryUri: I[11]},
    isOffscreen: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_kCompileStatus]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kArrayBuffer]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kElementArrayBuffer]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kStaticDraw]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kFloat]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kColorBufferBit]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kTexture2D]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kTextureWrapS]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kTextureWrapT]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kRepeat]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kClampToEdge]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kMirroredRepeat]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kTriangles]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kLinkStatus]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kUnsignedByte]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kUnsignedShort]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kRGBA]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kLinear]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kTextureMinFilter]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_kTexture0]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_canvas$]: {type: T$.ObjectN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_widthInPixels]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_heightInPixels]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.GlContext))));
  dart.setStaticFieldSignature(_engine.GlContext, () => ['_#_programCache', '_#_programCache#isSet']);
  dart.defineLazy(_engine.GlContext, {
    /*_engine.GlContext['_#_programCache']*/get ['_#_programCache']() {
      return null;
    },
    set ['_#_programCache'](value) {},
    /*_engine.GlContext['_#_programCache#isSet']*/get ['_#_programCache#isSet']() {
      return false;
    },
    set ['_#_programCache#isSet'](value) {
      if (value == null) dart.nullFailed(I[335], 431, 39, "_#_programCache#isSet");
    }
  }, false);
  _engine.GlContextCache = class GlContextCache extends core.Object {
    static dispose() {
      let t$36588;
      _engine.GlContextCache._maxPixelWidth = 0;
      _engine.GlContextCache._maxPixelHeight = 0;
      _engine.GlContextCache._cachedContext = null;
      t$36588 = _engine.GlContextCache._offScreenCanvas;
      t$36588 == null ? null : t$36588.dispose();
    }
    static createGlContext(widthInPixels, heightInPixels) {
      let t$36588;
      if (widthInPixels == null) dart.nullFailed(I[335], 850, 41, "widthInPixels");
      if (heightInPixels == null) dart.nullFailed(I[335], 850, 60, "heightInPixels");
      if (dart.notNull(widthInPixels) > dart.notNull(_engine.GlContextCache._maxPixelWidth) || dart.notNull(heightInPixels) > dart.notNull(_engine.GlContextCache._maxPixelHeight)) {
        t$36588 = _engine.GlContextCache._cachedContext;
        t$36588 == null ? null : t$36588.dispose();
        _engine.GlContextCache._cachedContext = null;
        _engine.GlContextCache._offScreenCanvas = null;
        _engine.GlContextCache._maxPixelWidth = math.max(T$.int(), _engine.GlContextCache._maxPixelWidth, widthInPixels);
        _engine.GlContextCache._maxPixelHeight = math.max(T$.int(), _engine.GlContextCache._maxPixelHeight, widthInPixels);
      }
      _engine.GlContextCache._offScreenCanvas == null ? _engine.GlContextCache._offScreenCanvas = new _engine.OffScreenCanvas.new(widthInPixels, heightInPixels) : null;
      _engine.GlContextCache._cachedContext == null ? _engine.GlContextCache._cachedContext = _engine.GlContext.new(dart.nullCheck(_engine.GlContextCache._offScreenCanvas)) : null;
      dart.nullCheck(_engine.GlContextCache._cachedContext).setViewportSize(widthInPixels, heightInPixels);
      return _engine.GlContextCache._cachedContext;
    }
    static ['_#new#tearOff']() {
      return new _engine.GlContextCache.new();
    }
  };
  (_engine.GlContextCache.new = function() {
    ;
  }).prototype = _engine.GlContextCache.prototype;
  dart.addRtiResources(_engine.GlContextCache, ["_engine|GlContextCache"]);
  dart.setStaticMethodSignature(_engine.GlContextCache, () => ['dispose', 'createGlContext']);
  dart.setLibraryUri(_engine.GlContextCache, I[220]);
  dart.setStaticFieldSignature(_engine.GlContextCache, () => ['_maxPixelWidth', '_maxPixelHeight', '_cachedContext', '_offScreenCanvas']);
  dart.defineLazy(_engine.GlContextCache, {
    /*_engine.GlContextCache._maxPixelWidth*/get _maxPixelWidth() {
      return 0;
    },
    set _maxPixelWidth(value) {
      if (value == null) dart.nullFailed(I[335], 838, 14, "_maxPixelWidth");
    },
    /*_engine.GlContextCache._maxPixelHeight*/get _maxPixelHeight() {
      return 0;
    },
    set _maxPixelHeight(value) {
      if (value == null) dart.nullFailed(I[335], 839, 14, "_maxPixelHeight");
    },
    /*_engine.GlContextCache._cachedContext*/get _cachedContext() {
      return null;
    },
    set _cachedContext(value) {},
    /*_engine.GlContextCache._offScreenCanvas*/get _offScreenCanvas() {
      return null;
    },
    set _offScreenCanvas(value) {}
  }, false);
  var offScreenCanvas = dart.privateName(_engine, "OffScreenCanvas.offScreenCanvas");
  var canvasElement$ = dart.privateName(_engine, "OffScreenCanvas.canvasElement");
  var width$6 = dart.privateName(_engine, "OffScreenCanvas.width");
  var height$6 = dart.privateName(_engine, "OffScreenCanvas.height");
  var _updateCanvasCssSize = dart.privateName(_engine, "_updateCanvasCssSize");
  _engine.OffScreenCanvas = class OffScreenCanvas extends core.Object {
    get offScreenCanvas() {
      return this[offScreenCanvas];
    }
    set offScreenCanvas(value) {
      this[offScreenCanvas] = value;
    }
    get canvasElement() {
      return this[canvasElement$];
    }
    set canvasElement(value) {
      this[canvasElement$] = value;
    }
    get width() {
      return this[width$6];
    }
    set width(value) {
      if (value == null) dart.nullFailed(I[335], 938, 7, "width");
      this[width$6] = value;
    }
    get height() {
      return this[height$6];
    }
    set height(value) {
      if (value == null) dart.nullFailed(I[335], 939, 7, "height");
      this[height$6] = value;
    }
    static ['_#new#tearOff'](width, height) {
      if (width == null) dart.nullFailed(I[335], 923, 24, "width");
      if (height == null) dart.nullFailed(I[335], 923, 36, "height");
      return new _engine.OffScreenCanvas.new(width, height);
    }
    [_updateCanvasCssSize](element) {
      let t$36588;
      if (element == null) dart.nullFailed(I[335], 942, 46, "element");
      let cssWidth = dart.notNull(this.width) / dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio);
      let cssHeight = dart.notNull(this.height) / dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio);
      t$36588 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36588, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36588, dart.strSafe(cssWidth) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36588, dart.strSafe(cssHeight) + "px");
        return t$36588;
      })();
    }
    resize(requestedWidth, requestedHeight) {
      if (requestedWidth == null) dart.nullFailed(I[335], 951, 19, "requestedWidth");
      if (requestedHeight == null) dart.nullFailed(I[335], 951, 39, "requestedHeight");
      if (requestedWidth != this.width && requestedHeight != this.height) {
        this.width = requestedWidth;
        this.height = requestedHeight;
        if (this.offScreenCanvas != null) {
          _engine['DomOffscreenCanvasExtension|set#width'](dart.nullCheck(this.offScreenCanvas), requestedWidth[$toDouble]());
          _engine['DomOffscreenCanvasExtension|set#height'](dart.nullCheck(this.offScreenCanvas), requestedHeight[$toDouble]());
        } else if (this.canvasElement != null) {
          _engine['DomCanvasElementExtension|set#width'](dart.nullCheck(this.canvasElement), requestedWidth[$toDouble]());
          _engine['DomCanvasElementExtension|set#height'](dart.nullCheck(this.canvasElement), requestedHeight[$toDouble]());
          this[_updateCanvasCssSize](dart.nullCheck(this.canvasElement));
        }
      }
    }
    dispose() {
      this.offScreenCanvas = null;
      this.canvasElement = null;
    }
    getContext2d() {
      return this.offScreenCanvas != null ? _engine['DomOffscreenCanvasExtension|getContext'](dart.nullCheck(this.offScreenCanvas), "2d") : _engine['DomCanvasElementExtension|getContext'](dart.nullCheck(this.canvasElement), "2d");
    }
    getBitmapRendererContext() {
      return T$10.DomCanvasRenderingContextBitmapRendererN()[_as](this.offScreenCanvas != null ? _engine['DomOffscreenCanvasExtension|getContext'](dart.nullCheck(this.offScreenCanvas), "bitmaprenderer") : _engine['DomCanvasElementExtension|getContext'](dart.nullCheck(this.canvasElement), "bitmaprenderer"));
    }
    get transferToImageBitmapSupported() {
      return js_util.hasProperty(dart.nullCheck(this.offScreenCanvas), "transferToImageBitmap");
    }
    transferToImageBitmap() {
      return dart.nullCheck(this.offScreenCanvas).transferToImageBitmap();
    }
    transferImage(targetContext) {
      let t$36588;
      if (targetContext == null) dart.nullFailed(I[335], 999, 29, "targetContext");
      js_util.callMethod(T$.void(), targetContext, "drawImage", [(t$36588 = this.offScreenCanvas, t$36588 == null ? dart.nullCheck(this.canvasElement) : t$36588), 0, 0, this.width, this.height, 0, 0, this.width, this.height]);
    }
    toDataUrl() {
      let completer = G$.CompleterOfString().new();
      if (this.offScreenCanvas != null) {
        _engine['DomOffscreenCanvasExtension|convertToBlob'](dart.nullCheck(this.offScreenCanvas)).then(T$.Null(), dart.fn(value => {
          if (value == null) dart.nullFailed(I[335], 1011, 54, "value");
          let fileReader = _engine.createDomFileReader();
          _engine['DomEventTargetExtension|addEventListener'](fileReader, "load", _engine.createDomEventListener(dart.fn(event => {
            if (event == null) dart.nullFailed(I[335], 1013, 78, "event");
            completer.complete(js_util.getProperty(T$.String(), js_util.getProperty(T$.Object(), event, "target"), "result"));
          }, T$10.DomEventTovoid())));
          fileReader.readAsDataURL(value);
        }, T$11.DomBlobToNull()));
        return completer.future;
      } else {
        return G$.FutureOfString().value(_engine['DomCanvasElementExtension|toDataURL'](dart.nullCheck(this.canvasElement)));
      }
    }
    drawImage(image, x, y, width, height) {
      if (image == null) dart.nullFailed(I[335], 1027, 25, "image");
      if (x == null) dart.nullFailed(I[335], 1027, 36, "x");
      if (y == null) dart.nullFailed(I[335], 1027, 43, "y");
      if (width == null) dart.nullFailed(I[335], 1027, 50, "width");
      if (height == null) dart.nullFailed(I[335], 1027, 61, "height");
      js_util.callMethod(T$.void(), dart.nullCheck(this.getContext2d()), "drawImage", [image, x, y, width, height]);
    }
    static get supported() {
      let t$36588;
      t$36588 = _engine.OffScreenCanvas._supported;
      return t$36588 == null ? _engine.OffScreenCanvas._supported = !dart.test(ui_web.browser.isSafari) && dart.test(js_util.hasProperty(dart.jsInteropNullCheck(dart.global.window), "OffscreenCanvas")) : t$36588;
    }
  };
  (_engine.OffScreenCanvas.new = function(width, height) {
    if (width == null) dart.nullFailed(I[335], 923, 24, "width");
    if (height == null) dart.nullFailed(I[335], 923, 36, "height");
    this[offScreenCanvas] = null;
    this[canvasElement$] = null;
    this[width$6] = width;
    this[height$6] = height;
    if (dart.test(_engine.OffScreenCanvas.supported)) {
      this.offScreenCanvas = _engine.createDomOffscreenCanvas(this.width, this.height);
    } else {
      this.canvasElement = _engine.createDomCanvasElement({width: this.width, height: this.height});
      _engine['DomElementExtension|set#className'](dart.nullCheck(this.canvasElement), "gl-canvas");
      this[_updateCanvasCssSize](dart.nullCheck(this.canvasElement));
    }
  }).prototype = _engine.OffScreenCanvas.prototype;
  dart.addRtiResources(_engine.OffScreenCanvas, ["_engine|OffScreenCanvas"]);
  dart.setMethodSignature(_engine.OffScreenCanvas, () => dart.global.Object.setPrototypeOf({
    [_updateCanvasCssSize]: T$11.DomCanvasElementTovoid(),
    resize: T$.intAndintTovoid(),
    dispose: T$.VoidTovoid(),
    getContext2d: T$2.VoidToObjectN(),
    getBitmapRendererContext: T$11.VoidToDomCanvasRenderingContextBitmapRendererN(),
    transferToImageBitmap: T$2.VoidToObjectN(),
    transferImage: T$.ObjectTovoid(),
    toDataUrl: T$2.VoidToFutureOfString(),
    drawImage: T$11.ObjectAndintAndint__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.OffScreenCanvas))));
  dart.setGetterSignature(_engine.OffScreenCanvas, () => dart.global.Object.setPrototypeOf({transferToImageBitmapSupported: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.OffScreenCanvas))));
  dart.setStaticGetterSignature(_engine.OffScreenCanvas, () => ['supported']);
  dart.setLibraryUri(_engine.OffScreenCanvas, I[220]);
  dart.setFieldSignature(_engine.OffScreenCanvas, () => dart.global.Object.setPrototypeOf({
    offScreenCanvas: {type: T$10.DomOffscreenCanvasN(), isConst: false, isFinal: false, libraryUri: I[220]},
    canvasElement: {type: T$9.DomCanvasElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    width: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    height: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.OffScreenCanvas))));
  dart.setStaticFieldSignature(_engine.OffScreenCanvas, () => ['_supported']);
  dart.defineLazy(_engine.OffScreenCanvas, {
    /*_engine.OffScreenCanvas._supported*/get _supported() {
      return null;
    },
    set _supported(value) {}
  }, false);
  var rootLayer$0 = dart.privateName(_engine, "EngineScene.rootLayer");
  var _disposeIfNeeded = dart.privateName(_engine, "_disposeIfNeeded");
  _engine.EngineScene = class EngineScene extends core.Object {
    get rootLayer() {
      return this[rootLayer$0];
    }
    set rootLayer(value) {
      super.rootLayer = value;
    }
    static ['_#new#tearOff'](rootLayer) {
      if (rootLayer == null) dart.nullFailed(I[336], 20, 20, "rootLayer");
      return new _engine.EngineScene.new(rootLayer);
    }
    beginRender() {
      if (!(dart.notNull(this[_refCount]) > 0)) dart.assertFailed(null, I[336], 30, 12, "_refCount > 0");
      this[_refCount] = dart.notNull(this[_refCount]) + 1;
    }
    endRender() {
      this[_refCount] = dart.notNull(this[_refCount]) - 1;
      this[_disposeIfNeeded]();
    }
    dispose() {
      this[_refCount] = dart.notNull(this[_refCount]) - 1;
      this[_disposeIfNeeded]();
    }
    [_disposeIfNeeded]() {
      if (!(dart.notNull(this[_refCount]) >= 0)) dart.assertFailed(null, I[336], 46, 12, "_refCount >= 0");
      if (this[_refCount] === 0) {
        this.rootLayer.dispose();
      }
    }
    toImage(width, height) {
      if (width == null) dart.nullFailed(I[336], 53, 32, "width");
      if (height == null) dart.nullFailed(I[336], 53, 43, "height");
      return async.async(T$10.Image(), (function* toImage() {
        return this.toImageSync(width, height);
      }).bind(this));
    }
    toImageSync(width, height) {
      if (width == null) dart.nullFailed(I[336], 58, 28, "width");
      if (height == null) dart.nullFailed(I[336], 58, 39, "height");
      let recorder = ui.PictureRecorder.new();
      let canvasRect = new ui.Rect.fromLTWH(0.0, 0.0, width[$toDouble](), height[$toDouble]());
      let canvas = ui.Canvas.new(recorder, canvasRect);
      for (let slice of this.rootLayer.slices[$whereType](T$11.PictureSlice())) {
        canvas.drawPicture(slice.picture);
      }
      return recorder.endRecording().toImageSync(width, height);
    }
  };
  (_engine.EngineScene.new = function(rootLayer) {
    if (rootLayer == null) dart.nullFailed(I[336], 20, 20, "rootLayer");
    this[_refCount] = 1;
    this[rootLayer$0] = rootLayer;
    ;
  }).prototype = _engine.EngineScene.prototype;
  dart.addRtiResources(_engine.EngineScene, ["_engine|EngineScene", "ui|Scene"]);
  dart.setMethodSignature(_engine.EngineScene, () => dart.global.Object.setPrototypeOf({
    beginRender: T$.VoidTovoid(),
    endRender: T$.VoidTovoid(),
    dispose: T$.VoidTovoid(),
    [_disposeIfNeeded]: T$.VoidTovoid(),
    toImage: T$10.intAndintToFutureOfImage(),
    toImageSync: T$10.intAndintToImage()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineScene))));
  dart.setLibraryUri(_engine.EngineScene, I[220]);
  dart.setFieldSignature(_engine.EngineScene, () => dart.global.Object.setPrototypeOf({
    rootLayer: {type: T$11.EngineRootLayer(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_refCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineScene))));
  var currentBuilder = dart.privateName(_engine, "EngineSceneBuilder.currentBuilder");
  _engine.EngineSceneBuilder = class EngineSceneBuilder extends core.Object {
    get currentBuilder() {
      return this[currentBuilder];
    }
    set currentBuilder(value) {
      if (value == null) dart.nullFailed(I[336], 72, 16, "currentBuilder");
      this[currentBuilder] = value;
    }
    addPerformanceOverlay(enabledOptions, bounds) {
      if (enabledOptions == null) dart.nullFailed(I[336], 75, 34, "enabledOptions");
      if (bounds == null) dart.nullFailed(I[336], 75, 58, "bounds");
      dart.throw(new core.UnimplementedError.new());
    }
    addPicture(offset, picture, opts) {
      if (offset == null) dart.nullFailed(I[336], 82, 15, "offset");
      if (picture == null) dart.nullFailed(I[336], 83, 16, "picture");
      let isComplexHint = opts && 'isComplexHint' in opts ? opts.isComplexHint : false;
      if (isComplexHint == null) dart.nullFailed(I[336], 84, 10, "isComplexHint");
      let willChangeHint = opts && 'willChangeHint' in opts ? opts.willChangeHint : false;
      if (willChangeHint == null) dart.nullFailed(I[336], 85, 10, "willChangeHint");
      this.currentBuilder.addPicture(offset, picture, {isComplexHint: isComplexHint, willChangeHint: willChangeHint});
    }
    addPlatformView(viewId, opts) {
      if (viewId == null) dart.nullFailed(I[336], 98, 9, "viewId");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[336], 99, 15, "offset");
      let width = opts && 'width' in opts ? opts.width : 0;
      if (width == null) dart.nullFailed(I[336], 100, 12, "width");
      let height = opts && 'height' in opts ? opts.height : 0;
      if (height == null) dart.nullFailed(I[336], 101, 12, "height");
      this.currentBuilder.addPlatformView(viewId, {offset: offset, width: width, height: height});
    }
    addRetained(retainedLayer) {
      if (retainedLayer == null) dart.nullFailed(I[336], 112, 35, "retainedLayer");
      this.currentBuilder.mergeLayer(T$11.PictureEngineLayer()[_as](retainedLayer));
    }
    addTexture(textureId, opts) {
      if (textureId == null) dart.nullFailed(I[336], 118, 9, "textureId");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[336], 119, 15, "offset");
      let width = opts && 'width' in opts ? opts.width : 0;
      if (width == null) dart.nullFailed(I[336], 120, 12, "width");
      let height = opts && 'height' in opts ? opts.height : 0;
      if (height == null) dart.nullFailed(I[336], 121, 12, "height");
      let freeze = opts && 'freeze' in opts ? opts.freeze : false;
      if (freeze == null) dart.nullFailed(I[336], 122, 10, "freeze");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[594] || CT.C594;
      if (filterQuality == null) dart.nullFailed(I[336], 123, 22, "filterQuality");
    }
    pushBackdropFilter(filter, opts) {
      if (filter == null) dart.nullFailed(I[336], 130, 20, "filter");
      let blendMode = opts && 'blendMode' in opts ? opts.blendMode : C[555] || CT.C555;
      if (blendMode == null) dart.nullFailed(I[336], 131, 18, "blendMode");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$11.BackdropFilterLayer(), new _engine.BackdropFilterLayer.new(), new _engine.BackdropFilterOperation.new(filter, blendMode));
    }
    pushClipPath(path, opts) {
      if (path == null) dart.nullFailed(I[336], 140, 13, "path");
      let clipBehavior = opts && 'clipBehavior' in opts ? opts.clipBehavior : C[584] || CT.C584;
      if (clipBehavior == null) dart.nullFailed(I[336], 141, 13, "clipBehavior");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$11.ClipPathLayer(), new _engine.ClipPathLayer.new(), new _engine.ClipPathOperation.new(path, clipBehavior));
    }
    pushClipRRect(rrect, opts) {
      if (rrect == null) dart.nullFailed(I[336], 150, 14, "rrect");
      let clipBehavior = opts && 'clipBehavior' in opts ? opts.clipBehavior : null;
      if (clipBehavior == null) dart.nullFailed(I[336], 151, 22, "clipBehavior");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$11.ClipRRectLayer(), new _engine.ClipRRectLayer.new(), new _engine.ClipRRectOperation.new(rrect, clipBehavior));
    }
    pushClipRect(rect, opts) {
      if (rect == null) dart.nullFailed(I[336], 160, 13, "rect");
      let clipBehavior = opts && 'clipBehavior' in opts ? opts.clipBehavior : C[584] || CT.C584;
      if (clipBehavior == null) dart.nullFailed(I[336], 161, 13, "clipBehavior");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$11.ClipRectLayer(), new _engine.ClipRectLayer.new(), new _engine.ClipRectOperation.new(rect, clipBehavior));
    }
    pushColorFilter(filter, opts) {
      if (filter == null) dart.nullFailed(I[336], 172, 20, "filter");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$11.ColorFilterLayer(), new _engine.ColorFilterLayer.new(), new _engine.ColorFilterOperation.new(filter));
    }
    pushImageFilter(filter, opts) {
      if (filter == null) dart.nullFailed(I[336], 181, 20, "filter");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[336], 182, 15, "offset");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$11.ImageFilterLayer(), new _engine.ImageFilterLayer.new(), new _engine.ImageFilterOperation.new(T$11.SceneImageFilter()[_as](filter), offset));
    }
    pushOffset(dx, dy, opts) {
      if (dx == null) dart.nullFailed(I[336], 191, 12, "dx");
      if (dy == null) dart.nullFailed(I[336], 192, 12, "dy");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$11.OffsetLayer(), new _engine.OffsetLayer.new(), new _engine.OffsetOperation.new(dx, dy));
    }
    pushOpacity(alpha, opts) {
      if (alpha == null) dart.nullFailed(I[336], 200, 41, "alpha");
      let offset = opts && 'offset' in opts ? opts.offset : C[520] || CT.C520;
      if (offset == null) dart.nullFailed(I[336], 201, 15, "offset");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$11.OpacityLayer(), new _engine.OpacityLayer.new(), new _engine.OpacityOperation.new(alpha, offset));
    }
    pushShaderMask(shader, maskRect, blendMode, opts) {
      if (shader == null) dart.nullFailed(I[336], 209, 15, "shader");
      if (maskRect == null) dart.nullFailed(I[336], 210, 13, "maskRect");
      if (blendMode == null) dart.nullFailed(I[336], 211, 18, "blendMode");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[594] || CT.C594;
      if (filterQuality == null) dart.nullFailed(I[336], 213, 22, "filterQuality");
      return this.pushLayer(T$11.ShaderMaskLayer(), new _engine.ShaderMaskLayer.new(), new _engine.ShaderMaskOperation.new(shader, maskRect, blendMode));
    }
    pushTransform(matrix4, opts) {
      if (matrix4 == null) dart.nullFailed(I[336], 221, 17, "matrix4");
      let oldLayer = opts && 'oldLayer' in opts ? opts.oldLayer : null;
      return this.pushLayer(T$11.TransformLayer(), new _engine.TransformLayer.new(), new _engine.TransformOperation.new(matrix4));
    }
    setProperties(width, height, insetTop, insetRight, insetBottom, insetLeft, focusable) {
      if (width == null) dart.nullFailed(I[336], 230, 12, "width");
      if (height == null) dart.nullFailed(I[336], 231, 12, "height");
      if (insetTop == null) dart.nullFailed(I[336], 232, 12, "insetTop");
      if (insetRight == null) dart.nullFailed(I[336], 233, 12, "insetRight");
      if (insetBottom == null) dart.nullFailed(I[336], 234, 12, "insetBottom");
      if (insetLeft == null) dart.nullFailed(I[336], 235, 12, "insetLeft");
      if (focusable == null) dart.nullFailed(I[336], 236, 10, "focusable");
    }
    build() {
      while (this.currentBuilder.parent != null) {
        this.pop();
      }
      let rootLayer = this.currentBuilder.build();
      return new _engine.EngineScene.new(T$11.EngineRootLayer()[_as](rootLayer));
    }
    pop() {
      let layer = this.currentBuilder.build();
      let parentBuilder = this.currentBuilder.parent;
      if (parentBuilder == null) {
        dart.throw(new core.StateError.new("Popped too many times."));
      }
      this.currentBuilder = parentBuilder;
      this.currentBuilder.mergeLayer(layer);
    }
    pushLayer(T, layer, operation) {
      if (layer == null) dart.nullFailed(I[336], 261, 47, "layer");
      if (operation == null) dart.nullFailed(I[336], 261, 69, "operation");
      this.currentBuilder = _engine.LayerBuilder.childLayer({parent: this.currentBuilder, layer: layer, operation: operation});
      return layer;
    }
    static ['_#new#tearOff']() {
      return new _engine.EngineSceneBuilder.new();
    }
  };
  (_engine.EngineSceneBuilder.new = function() {
    this[currentBuilder] = _engine.LayerBuilder.rootLayer();
    ;
  }).prototype = _engine.EngineSceneBuilder.prototype;
  dart.addRtiResources(_engine.EngineSceneBuilder, ["_engine|EngineSceneBuilder", "ui|SceneBuilder"]);
  dart.setMethodSignature(_engine.EngineSceneBuilder, () => dart.global.Object.setPrototypeOf({
    addPerformanceOverlay: T$10.intAndRectTovoid(),
    addPicture: T$10.OffsetAndPicture__Tovoid(),
    addPlatformView: T$10.int__Tovoid$1(),
    addRetained: T$10.EngineLayerTovoid(),
    addTexture: T$10.int__Tovoid(),
    pushBackdropFilter: T$11.ImageFilter__ToBackdropFilterEngineLayer$1(),
    pushClipPath: T$11.Path__ToClipPathEngineLayer$1(),
    pushClipRRect: T$11.RRect__ToClipRRectEngineLayer$2(),
    pushClipRect: T$11.Rect__ToClipRectEngineLayer$1(),
    pushColorFilter: T$11.ColorFilter__ToColorFilterEngineLayer$1(),
    pushImageFilter: T$11.ImageFilter__ToImageFilterEngineLayer$1(),
    pushOffset: T$11.doubleAnddouble__ToOffsetEngineLayer$1(),
    pushOpacity: T$11.int__ToOpacityEngineLayer$1(),
    pushShaderMask: T$11.ShaderAndRectAndBlendMode__ToShaderMaskEngineLayer$1(),
    pushTransform: T$11.Float64List__ToTransformEngineLayer$1(),
    setProperties: T$10.doubleAnddoubleAnddouble__Tovoid(),
    build: T$11.VoidToScene(),
    pop: T$.VoidTovoid(),
    pushLayer: T$11.TAndLayerOperationToT()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineSceneBuilder))));
  dart.setMethodsDefaultTypeArgSignature(_engine.EngineSceneBuilder, () => dart.global.Object.setPrototypeOf({pushLayer: [T$11.PictureEngineLayer()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_engine.EngineSceneBuilder))));
  dart.setLibraryUri(_engine.EngineSceneBuilder, I[220]);
  dart.setFieldSignature(_engine.EngineSceneBuilder, () => dart.global.Object.setPrototypeOf({currentBuilder: {type: T$11.LayerBuilder(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineSceneBuilder))));
  _engine.SceneCanvas = class SceneCanvas extends core.Object {};
  (_engine.SceneCanvas.new = function() {
    ;
  }).prototype = _engine.SceneCanvas.prototype;
  dart.addRtiResources(_engine.SceneCanvas, ["_engine|SceneCanvas", "ui|Canvas"]);
  dart.setLibraryUri(_engine.SceneCanvas, I[220]);
  _engine.ScenePicture = class ScenePicture extends core.Object {};
  (_engine.ScenePicture.new = function() {
    ;
  }).prototype = _engine.ScenePicture.prototype;
  dart.addRtiResources(_engine.ScenePicture, ["_engine|ScenePicture", "ui|Picture"]);
  dart.setLibraryUri(_engine.ScenePicture, I[220]);
  _engine.SceneImageFilter = class SceneImageFilter extends core.Object {};
  (_engine.SceneImageFilter.new = function() {
    ;
  }).prototype = _engine.SceneImageFilter.prototype;
  dart.addRtiResources(_engine.SceneImageFilter, ["_engine|SceneImageFilter", "ui|ImageFilter"]);
  dart.setLibraryUri(_engine.SceneImageFilter, I[220]);
  _engine.PictureRenderer = class PictureRenderer extends core.Object {};
  (_engine.PictureRenderer.new = function() {
    ;
  }).prototype = _engine.PictureRenderer.prototype;
  dart.addRtiResources(_engine.PictureRenderer, ["_engine|PictureRenderer"]);
  dart.setLibraryUri(_engine.PictureRenderer, I[220]);
  var _completer$ = dart.privateName(_engine, "_completer");
  _engine._SceneRender = class _SceneRender extends core.Object {
    static ['_#new#tearOff'](scene, _completer, opts) {
      if (scene == null) dart.nullFailed(I[337], 26, 10, "scene");
      if (_completer == null) dart.nullFailed(I[337], 27, 10, "_completer");
      let recorder = opts && 'recorder' in opts ? opts.recorder : null;
      return new _engine._SceneRender.new(scene, _completer, {recorder: recorder});
    }
    done() {
      this.scene.endRender();
      this[_completer$].complete();
    }
  };
  (_engine._SceneRender.new = function(scene, _completer, opts) {
    if (scene == null) dart.nullFailed(I[337], 26, 10, "scene");
    if (_completer == null) dart.nullFailed(I[337], 27, 10, "_completer");
    let recorder = opts && 'recorder' in opts ? opts.recorder : null;
    this.scene = scene;
    this[_completer$] = _completer;
    this.recorder = recorder;
    this.scene.beginRender();
  }).prototype = _engine._SceneRender.prototype;
  dart.addRtiResources(_engine._SceneRender, ["_engine|_SceneRender"]);
  dart.setMethodSignature(_engine._SceneRender, () => dart.global.Object.setPrototypeOf({done: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._SceneRender))));
  dart.setLibraryUri(_engine._SceneRender, I[220]);
  dart.setFieldSignature(_engine._SceneRender, () => dart.global.Object.setPrototypeOf({
    scene: {type: T$11.EngineScene(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_completer$]: {type: T$11.CompleterOfvoid(), isConst: false, isFinal: true, libraryUri: I[39]},
    recorder: {type: T$11.FrameTimingRecorderN(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._SceneRender))));
  var pictureRenderer$ = dart.privateName(_engine, "EngineSceneView.pictureRenderer");
  var sceneElement$ = dart.privateName(_engine, "EngineSceneView.sceneElement");
  var flutterView$ = dart.privateName(_engine, "EngineSceneView.flutterView");
  var containers = dart.privateName(_engine, "EngineSceneView.containers");
  var _currentRender = dart.privateName(_engine, "_currentRender");
  var _nextRender = dart.privateName(_engine, "_nextRender");
  _engine.EngineSceneView = class EngineSceneView extends core.Object {
    get pictureRenderer() {
      return this[pictureRenderer$];
    }
    set pictureRenderer(value) {
      super.pictureRenderer = value;
    }
    get sceneElement() {
      return this[sceneElement$];
    }
    set sceneElement(value) {
      super.sceneElement = value;
    }
    get flutterView() {
      return this[flutterView$];
    }
    set flutterView(value) {
      super.flutterView = value;
    }
    get containers() {
      return this[containers];
    }
    set containers(value) {
      if (value == null) dart.nullFailed(I[337], 56, 24, "containers");
      this[containers] = value;
    }
    static new(pictureRenderer, flutterView) {
      if (pictureRenderer == null) dart.nullFailed(I[337], 45, 43, "pictureRenderer");
      if (flutterView == null) dart.nullFailed(I[337], 45, 75, "flutterView");
      let sceneElement = _engine.createDomElement("flt-scene");
      return new _engine.EngineSceneView.__(pictureRenderer, flutterView, sceneElement);
    }
    static ['_#new#tearOff'](pictureRenderer, flutterView) {
      if (pictureRenderer == null) dart.nullFailed(I[337], 45, 43, "pictureRenderer");
      if (flutterView == null) dart.nullFailed(I[337], 45, 75, "flutterView");
      return _engine.EngineSceneView.new(pictureRenderer, flutterView);
    }
    static ['_#_#tearOff'](pictureRenderer, flutterView, sceneElement) {
      if (pictureRenderer == null) dart.nullFailed(I[337], 50, 26, "pictureRenderer");
      if (flutterView == null) dart.nullFailed(I[337], 50, 48, "flutterView");
      if (sceneElement == null) dart.nullFailed(I[337], 50, 66, "sceneElement");
      return new _engine.EngineSceneView.__(pictureRenderer, flutterView, sceneElement);
    }
    renderScene(scene, recorder) {
      let t$36588;
      if (scene == null) dart.nullFailed(I[337], 61, 40, "scene");
      if (this[_currentRender] != null) {
        t$36588 = this[_nextRender];
        t$36588 == null ? null : t$36588.done();
        let completer = G$.CompleterOfvoid().new();
        this[_nextRender] = new _engine._SceneRender.new(scene, completer, {recorder: recorder});
        return completer.future;
      }
      let completer = G$.CompleterOfvoid().new();
      this[_currentRender] = new _engine._SceneRender.new(scene, completer, {recorder: recorder});
      this[_kickRenderLoop]();
      return completer.future;
    }
    [_kickRenderLoop]() {
      return async.async(T$.void(), (function* _kickRenderLoop$() {
        let current = dart.nullCheck(this[_currentRender]);
        yield this[_renderScene](current.scene, current.recorder);
        current.done();
        this[_currentRender] = this[_nextRender];
        this[_nextRender] = null;
        if (this[_currentRender] == null) {
          return;
        } else {
          return this[_kickRenderLoop]();
        }
      }).bind(this));
    }
    [_renderScene](scene, recorder) {
      if (scene == null) dart.nullFailed(I[337], 89, 41, "scene");
      return async.async(T$.void(), (function* _renderScene() {
        let t$36589, t$36589$, t$36589$0, t$36589$1, t$36589$2, t$36590;
        let screenBounds = new ui.Rect.fromLTWH(0.0, 0.0, this.flutterView.physicalSize.width, this.flutterView.physicalSize.height);
        let slices = scene.rootLayer.slices;
        let picturesToRender = G$.JSArrayOfScenePicture().of([]);
        let originalPicturesToRender = G$.JSArrayOfScenePicture().of([]);
        for (let slice of slices) {
          if (T$11.PictureSlice()[_is](slice)) {
            let clippedRect = slice.picture.cullRect.intersect(screenBounds);
            if (dart.test(clippedRect.isEmpty)) {
              continue;
            } else if (dart.equals(clippedRect, slice.picture.cullRect)) {
              originalPicturesToRender[$add](slice.picture);
              picturesToRender[$add](slice.picture);
            } else {
              originalPicturesToRender[$add](slice.picture);
              picturesToRender[$add](this.pictureRenderer.clipPicture(slice.picture, clippedRect));
            }
          }
        }
        let renderMap = null;
        if (dart.test(picturesToRender[$isNotEmpty])) {
          let renderResult = (yield async.awaitWithTypeCheck(T$11.FutureOfRecOf__(), this.pictureRenderer.renderPictures(picturesToRender)));
          renderMap = (() => {
            let t$36588 = new (G$.LinkedMapOfScenePicture$DomImageBitmap()).new();
            for (let i = 0; i < dart.notNull(picturesToRender[$length]); i = i + 1)
              t$36588[$_set](originalPicturesToRender[$_get](i), renderResult.imageBitmaps[$_get](i));
            return t$36588;
          })();
          t$36589 = recorder;
          t$36589 == null ? null : t$36589.recordRasterStart(renderResult.rasterStartMicros);
          t$36589$ = recorder;
          t$36589$ == null ? null : t$36589$.recordRasterFinish(renderResult.rasterEndMicros);
        } else {
          renderMap = new (G$.LinkedMapOfScenePicture$DomImageBitmap()).new();
          t$36589$0 = recorder;
          t$36589$0 == null ? null : t$36589$0.recordRasterStart();
          t$36589$1 = recorder;
          t$36589$1 == null ? null : t$36589$1.recordRasterFinish();
        }
        t$36589$2 = recorder;
        t$36589$2 == null ? null : t$36589$2.submitTimings();
        let reusableContainers = G$.ListOfSliceContainerN().from(this.containers);
        let newContainers = G$.JSArrayOfSliceContainer().of([]);
        for (let slice of slices) {
          L7: {
            let t$36$350$350 = slice;
            {
              if (T$11.PictureSlice()[_is](t$36$350$350)) {
                {
                  let bitmap = renderMap[$_get](slice.picture);
                  if (bitmap == null) {
                    continue;
                  }
                  let container = null;
                  for (let j = 0; j < dart.notNull(reusableContainers[$length]); j = j + 1) {
                    let candidate = reusableContainers[$_get](j);
                    if (T$11.PictureSliceContainer()[_is](candidate)) {
                      container = candidate;
                      reusableContainers[$_set](j, null);
                      break;
                    }
                  }
                  let clippedBounds = slice.picture.cullRect.intersect(screenBounds);
                  if (container != null) {
                    container.bounds = clippedBounds;
                  } else {
                    container = _engine.PictureSliceContainer.new(clippedBounds);
                  }
                  container.updateContents();
                  container.renderBitmap(bitmap);
                  newContainers[$add](container);
                  break L7;
                }
              }
            }
            {
              if (T$11.PlatformViewSlice()[_is](t$36$350$350)) {
                {
                  for (let view of slice.views) {
                    t$36590 = _engine.EnginePlatformDispatcher.instance.implicitView;
                    t$36590 == null ? null : t$36590.dom.injectPlatformView(view.viewId);
                    let container = null;
                    for (let j = 0; j < dart.notNull(reusableContainers[$length]); j = j + 1) {
                      let candidate = reusableContainers[$_get](j);
                      if (T$11.PlatformViewContainer()[_is](candidate) && candidate.viewId == view.viewId) {
                        container = candidate;
                        reusableContainers[$_set](j, null);
                        break;
                      }
                    }
                    container == null ? container = new _engine.PlatformViewContainer.new(view.viewId) : null;
                    container.bounds = view.bounds;
                    container.styling = view.styling;
                    container.updateContents();
                    newContainers[$add](container);
                  }
                }
              }
              break L7;
            }
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
          }
        }
        this.containers = newContainers;
        let currentElement = js_util.getProperty(T$9.DomElementN(), this.sceneElement, "firstElementChild");
        for (let container of this.containers) {
          if (currentElement == null) {
            T$9.DomNode()[_as](this.sceneElement.appendChild(container.container));
          } else if (dart.equals(currentElement, container.container)) {
            currentElement = js_util.getProperty(T$9.DomElementN(), currentElement, "nextElementSibling");
          } else {
            T$9.DomNode()[_as](this.sceneElement.insertBefore(container.container, currentElement));
          }
        }
        while (currentElement != null) {
          let sibling = js_util.getProperty(T$9.DomElementN(), currentElement, "nextElementSibling");
          T$9.DomNode()[_as](this.sceneElement.removeChild(currentElement));
          currentElement = sibling;
        }
      }).bind(this));
    }
  };
  (_engine.EngineSceneView.__ = function(pictureRenderer, flutterView, sceneElement) {
    if (pictureRenderer == null) dart.nullFailed(I[337], 50, 26, "pictureRenderer");
    if (flutterView == null) dart.nullFailed(I[337], 50, 48, "flutterView");
    if (sceneElement == null) dart.nullFailed(I[337], 50, 66, "sceneElement");
    this[containers] = G$.JSArrayOfSliceContainer().of([]);
    this[_currentRender] = null;
    this[_nextRender] = null;
    this[pictureRenderer$] = pictureRenderer;
    this[flutterView$] = flutterView;
    this[sceneElement$] = sceneElement;
    ;
  }).prototype = _engine.EngineSceneView.prototype;
  dart.addRtiResources(_engine.EngineSceneView, ["_engine|EngineSceneView"]);
  dart.setMethodSignature(_engine.EngineSceneView, () => dart.global.Object.setPrototypeOf({
    renderScene: T$11.EngineSceneAndFrameTimingRecorderNToFutureOfvoid(),
    [_kickRenderLoop]: T$.VoidToFutureOfvoid(),
    [_renderScene]: T$11.EngineSceneAndFrameTimingRecorderNToFutureOfvoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineSceneView))));
  dart.setStaticMethodSignature(_engine.EngineSceneView, () => ['new']);
  dart.setLibraryUri(_engine.EngineSceneView, I[220]);
  dart.setFieldSignature(_engine.EngineSceneView, () => dart.global.Object.setPrototypeOf({
    pictureRenderer: {type: T$11.PictureRenderer(), isConst: false, isFinal: true, libraryUri: I[220]},
    sceneElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    flutterView: {type: T$11.FlutterView(), isConst: false, isFinal: true, libraryUri: I[198]},
    containers: {type: T$12.ListOfSliceContainer(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentRender]: {type: T$12._SceneRenderN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_nextRender]: {type: T$12._SceneRenderN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineSceneView))));
  _engine.SliceContainer = class SliceContainer extends core.Object {};
  (_engine.SliceContainer.new = function() {
    ;
  }).prototype = _engine.SliceContainer.prototype;
  dart.addRtiResources(_engine.SliceContainer, ["_engine|SliceContainer"]);
  dart.setLibraryUri(_engine.SliceContainer, I[220]);
  var container$ = dart.privateName(_engine, "PictureSliceContainer.container");
  var canvas$0 = dart.privateName(_engine, "PictureSliceContainer.canvas");
  var _dirty = dart.privateName(_engine, "_dirty");
  _engine.PictureSliceContainer = class PictureSliceContainer extends _engine.SliceContainer {
    get container() {
      return this[container$];
    }
    set container(value) {
      super.container = value;
    }
    get canvas() {
      return this[canvas$0];
    }
    set canvas(value) {
      super.canvas = value;
    }
    static new(bounds) {
      if (bounds == null) dart.nullFailed(I[337], 217, 41, "bounds");
      let container = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-canvas-container");
      let canvas = _engine.createDomCanvasElement({width: bounds.width[$toInt](), height: bounds.height[$toInt]()});
      T$9.DomNode()[_as](container.appendChild(canvas));
      return new _engine.PictureSliceContainer.__(bounds, container, canvas);
    }
    static ['_#new#tearOff'](bounds) {
      if (bounds == null) dart.nullFailed(I[337], 217, 41, "bounds");
      return _engine.PictureSliceContainer.new(bounds);
    }
    static ['_#_#tearOff'](_bounds, container, canvas) {
      if (_bounds == null) dart.nullFailed(I[337], 227, 32, "_bounds");
      if (container == null) dart.nullFailed(I[337], 227, 46, "container");
      if (canvas == null) dart.nullFailed(I[337], 227, 62, "canvas");
      return new _engine.PictureSliceContainer.__(_bounds, container, canvas);
    }
    get bounds() {
      return this[_bounds$];
    }
    set bounds(bounds) {
      if (bounds == null) dart.nullFailed(I[337], 233, 22, "bounds");
      if (!dart.equals(this[_bounds$], bounds)) {
        this[_bounds$] = bounds;
        this[_dirty] = true;
      }
    }
    updateContents() {
      if (dart.test(this[_dirty])) {
        this[_dirty] = false;
        let roundedOutBounds = new ui.Rect.fromLTRB(this.bounds.left[$floorToDouble](), this.bounds.top[$floorToDouble](), this.bounds.right[$ceilToDouble](), this.bounds.bottom[$ceilToDouble]());
        let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.canvas, "style");
        let devicePixelRatio = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
        let logicalWidth = dart.notNull(roundedOutBounds.width) / dart.notNull(devicePixelRatio);
        let logicalHeight = dart.notNull(roundedOutBounds.height) / dart.notNull(devicePixelRatio);
        let logicalLeft = dart.notNull(roundedOutBounds.left) / dart.notNull(devicePixelRatio);
        let logicalTop = dart.notNull(roundedOutBounds.top) / dart.notNull(devicePixelRatio);
        _engine['DomCSSStyleDeclarationExtension|set#width'](style, dart.strSafe(logicalWidth) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](style, dart.strSafe(logicalHeight) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#position'](style, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#left'](style, dart.strSafe(logicalLeft) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](style, dart.strSafe(logicalTop) + "px");
        _engine['DomCanvasElementExtension|set#width'](this.canvas, roundedOutBounds.width[$ceilToDouble]());
        _engine['DomCanvasElementExtension|set#height'](this.canvas, roundedOutBounds.height[$ceilToDouble]());
      }
    }
    renderBitmap(bitmap) {
      if (bitmap == null) dart.nullFailed(I[337], 267, 36, "bitmap");
      let ctx = _engine['DomCanvasElementExtension|get#contextBitmapRenderer'](this.canvas);
      ctx.transferFromImageBitmap(bitmap);
    }
  };
  (_engine.PictureSliceContainer.__ = function(_bounds, container, canvas) {
    if (_bounds == null) dart.nullFailed(I[337], 227, 32, "_bounds");
    if (container == null) dart.nullFailed(I[337], 227, 46, "container");
    if (canvas == null) dart.nullFailed(I[337], 227, 62, "canvas");
    this[_dirty] = true;
    this[_bounds$] = _bounds;
    this[container$] = container;
    this[canvas$0] = canvas;
    ;
  }).prototype = _engine.PictureSliceContainer.prototype;
  dart.addRtiResources(_engine.PictureSliceContainer, ["_engine|PictureSliceContainer"]);
  dart.setMethodSignature(_engine.PictureSliceContainer, () => dart.global.Object.setPrototypeOf({
    updateContents: T$.VoidTovoid(),
    renderBitmap: T$10.DomImageBitmapTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PictureSliceContainer))));
  dart.setStaticMethodSignature(_engine.PictureSliceContainer, () => ['new']);
  dart.setGetterSignature(_engine.PictureSliceContainer, () => dart.global.Object.setPrototypeOf({bounds: T$8.Rect()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PictureSliceContainer))));
  dart.setSetterSignature(_engine.PictureSliceContainer, () => dart.global.Object.setPrototypeOf({bounds: T$8.Rect()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.PictureSliceContainer))));
  dart.setLibraryUri(_engine.PictureSliceContainer, I[220]);
  dart.setFieldSignature(_engine.PictureSliceContainer, () => dart.global.Object.setPrototypeOf({
    [_bounds$]: {type: T$8.Rect(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_dirty]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    container: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    canvas: {type: T$9.DomCanvasElement(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PictureSliceContainer))));
  var viewId$5 = dart.privateName(_engine, "PlatformViewContainer.viewId");
  var container = dart.privateName(_engine, "PlatformViewContainer.container");
  var _styling = dart.privateName(_engine, "_styling");
  _engine.PlatformViewContainer = class PlatformViewContainer extends _engine.SliceContainer {
    get viewId() {
      return this[viewId$5];
    }
    set viewId(value) {
      super.viewId = value;
    }
    get container() {
      return this[container];
    }
    set container(value) {
      super.container = value;
    }
    static ['_#new#tearOff'](viewId) {
      if (viewId == null) dart.nullFailed(I[337], 278, 30, "viewId");
      return new _engine.PlatformViewContainer.new(viewId);
    }
    set styling(styling) {
      if (styling == null) dart.nullFailed(I[337], 288, 35, "styling");
      if (!dart.equals(this[_styling], styling)) {
        this[_styling] = styling;
        this[_dirty] = true;
      }
    }
    set bounds(bounds) {
      if (bounds == null) dart.nullFailed(I[337], 295, 22, "bounds");
      if (!dart.equals(this[_bounds$], bounds)) {
        this[_bounds$] = bounds;
        this[_dirty] = true;
      }
    }
    updateContents() {
      let t$36590;
      if (!(this[_styling] != null)) dart.assertFailed(null, I[337], 305, 12, "_styling != null");
      if (!(this[_bounds$] != null)) dart.assertFailed(null, I[337], 306, 12, "_bounds != null");
      if (dart.test(this[_dirty])) {
        let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.container, "style");
        let devicePixelRatio = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
        let logicalWidth = dart.notNull(dart.nullCheck(this[_bounds$]).width) / dart.notNull(devicePixelRatio);
        let logicalHeight = dart.notNull(dart.nullCheck(this[_bounds$]).height) / dart.notNull(devicePixelRatio);
        _engine['DomCSSStyleDeclarationExtension|set#width'](style, dart.strSafe(logicalWidth) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](style, dart.strSafe(logicalHeight) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#position'](style, "absolute");
        let position = _engine.PlatformViewPosition.combine(dart.nullCheck(this[_styling]).position, new _engine.PlatformViewPosition.offset(dart.nullCheck(this[_bounds$]).topLeft));
        let offset = (t$36590 = position.offset, t$36590 == null ? ui.Offset.zero : t$36590);
        let logicalLeft = dart.notNull(offset.dx) / dart.notNull(devicePixelRatio);
        let logicalTop = dart.notNull(offset.dy) / dart.notNull(devicePixelRatio);
        _engine['DomCSSStyleDeclarationExtension|set#left'](style, dart.strSafe(logicalLeft) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](style, dart.strSafe(logicalTop) + "px");
        let transform = position.transform;
        _engine['DomCSSStyleDeclarationExtension|set#transform'](style, transform != null ? _engine.float64ListToCssTransform3d(transform.storage) : "");
        _engine['DomCSSStyleDeclarationExtension|set#opacity'](style, dart.nullCheck(this[_styling]).opacity !== 1.0 ? dart.str(dart.nullCheck(this[_styling]).opacity) : "");
        this[_dirty] = false;
      }
    }
  };
  (_engine.PlatformViewContainer.new = function(viewId) {
    if (viewId == null) dart.nullFailed(I[337], 278, 30, "viewId");
    this[_styling] = null;
    this[_bounds$] = null;
    this[_dirty] = false;
    this[viewId$5] = viewId;
    this[container] = _engine.createPlatformViewSlot(viewId);
    ;
  }).prototype = _engine.PlatformViewContainer.prototype;
  dart.addRtiResources(_engine.PlatformViewContainer, ["_engine|PlatformViewContainer"]);
  dart.setMethodSignature(_engine.PlatformViewContainer, () => dart.global.Object.setPrototypeOf({updateContents: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PlatformViewContainer))));
  dart.setSetterSignature(_engine.PlatformViewContainer, () => dart.global.Object.setPrototypeOf({
    styling: T$11.PlatformViewStyling(),
    bounds: T$8.Rect()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.PlatformViewContainer))));
  dart.setLibraryUri(_engine.PlatformViewContainer, I[220]);
  dart.setFieldSignature(_engine.PlatformViewContainer, () => dart.global.Object.setPrototypeOf({
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_styling]: {type: T$11.PlatformViewStylingN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_bounds$]: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_dirty]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    container: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformViewContainer))));
  _engine.Assertiveness = class Assertiveness extends core._Enum {
    [_enumToString]() {
      return "Assertiveness." + dart.str(this[_name$]);
    }
  };
  (_engine.Assertiveness.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[338], 13, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[338], 13, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.Assertiveness).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.Assertiveness.prototype;
  dart.addRtiResources(_engine.Assertiveness, ["_engine|Assertiveness"]);
  dart.setMethodSignature(_engine.Assertiveness, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Assertiveness))));
  dart.setLibraryUri(_engine.Assertiveness, I[220]);
  dart.setStaticFieldSignature(_engine.Assertiveness, () => ['values', 'polite', 'assertive']);
  dart.defineLazy(_engine.Assertiveness, {
    /*_engine.Assertiveness.values*/get values() {
      return C[924] || CT.C924;
    },
    /*_engine.Assertiveness.polite*/get polite() {
      return C[925] || CT.C925;
    },
    /*_engine.Assertiveness.assertive*/get assertive() {
      return C[926] || CT.C926;
    }
  }, false);
  var _appendSpace = dart.privateName(_engine, "_appendSpace");
  var _politeElement$ = dart.privateName(_engine, "_politeElement");
  var _assertiveElement$ = dart.privateName(_engine, "_assertiveElement");
  _engine.AccessibilityAnnouncements = class AccessibilityAnnouncements extends core.Object {
    static new(opts) {
      let hostElement = opts && 'hostElement' in opts ? opts.hostElement : null;
      if (hostElement == null) dart.nullFailed(I[338], 32, 59, "hostElement");
      let politeElement = _engine.AccessibilityAnnouncements._createElement(_engine.Assertiveness.polite);
      let assertiveElement = _engine.AccessibilityAnnouncements._createElement(_engine.Assertiveness.assertive);
      hostElement.append(politeElement);
      hostElement.append(assertiveElement);
      return new _engine.AccessibilityAnnouncements.__(politeElement, assertiveElement);
    }
    static ['_#new#tearOff'](opts) {
      let hostElement = opts && 'hostElement' in opts ? opts.hostElement : null;
      if (hostElement == null) dart.nullFailed(I[338], 32, 59, "hostElement");
      return _engine.AccessibilityAnnouncements.new({hostElement: hostElement});
    }
    static ['_#_#tearOff'](_politeElement, _assertiveElement) {
      if (_politeElement == null) dart.nullFailed(I[338], 40, 37, "_politeElement");
      if (_assertiveElement == null) dart.nullFailed(I[338], 40, 58, "_assertiveElement");
      return new _engine.AccessibilityAnnouncements.__(_politeElement, _assertiveElement);
    }
    ariaLiveElementFor(assertiveness) {
      if (assertiveness == null) dart.nullFailed(I[338], 60, 51, "assertiveness");
      switch (assertiveness) {
        case C[925] || CT.C925:
          {
            return this[_politeElement$];
          }
        case C[926] || CT.C926:
          {
            return this[_assertiveElement$];
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
    handleMessage(codec, data) {
      let t$36592;
      if (codec == null) dart.nullFailed(I[338], 71, 43, "codec");
      let inputMap = T$.Map()[_as](codec.decodeMessage(data));
      let dataMap = _engine['JsonExtensions|readDynamicJson'](inputMap, "data");
      let message = _engine['JsonExtensions|tryString'](dataMap, "message");
      if (message != null && message[$isNotEmpty]) {
        let assertivenessIndex = (t$36592 = _engine['JsonExtensions|tryInt'](dataMap, "assertiveness"), t$36592 == null ? 0 : t$36592);
        let assertiveness = _engine.Assertiveness.values[$_get](assertivenessIndex);
        this.announce(message, assertiveness);
      }
    }
    announce(message, assertiveness) {
      if (message == null) dart.nullFailed(I[338], 88, 24, "message");
      if (assertiveness == null) dart.nullFailed(I[338], 88, 47, "assertiveness");
      let ariaLiveElement = this.ariaLiveElementFor(assertiveness);
      let messageElement = _engine.createDomHTMLDivElement();
      _engine['DomNodeExtension|set#text'](messageElement, dart.test(this[_appendSpace]) ? dart.str(message) + " " : message);
      this[_appendSpace] = !dart.test(this[_appendSpace]);
      ariaLiveElement.append(messageElement);
      async.Timer.new(_engine.liveMessageDuration, dart.fn(() => messageElement.remove(), T$.VoidTovoid()));
    }
    static _createElement(assertiveness) {
      let t$36592;
      if (assertiveness == null) dart.nullFailed(I[338], 99, 54, "assertiveness");
      let ariaLiveValue = assertiveness == _engine.Assertiveness.assertive ? "assertive" : "polite";
      let liveRegion = T$10.DomHTMLElement()[_as](_engine.createDomElement("flt-announcement-" + ariaLiveValue));
      t$36592 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), liveRegion, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36592, "fixed");
        _engine['DomCSSStyleDeclarationExtension|set#overflow'](t$36592, "hidden");
        _engine['DomCSSStyleDeclarationExtension|set#transform'](t$36592, "translate(-99999px, -99999px)");
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36592, "1px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36592, "1px");
        return t$36592;
      })();
      _engine['DomElementExtension|setAttribute'](liveRegion, "aria-live", ariaLiveValue);
      return liveRegion;
    }
  };
  (_engine.AccessibilityAnnouncements.__ = function(_politeElement, _assertiveElement) {
    if (_politeElement == null) dart.nullFailed(I[338], 40, 37, "_politeElement");
    if (_assertiveElement == null) dart.nullFailed(I[338], 40, 58, "_assertiveElement");
    this[_appendSpace] = false;
    this[_politeElement$] = _politeElement;
    this[_assertiveElement$] = _assertiveElement;
    ;
  }).prototype = _engine.AccessibilityAnnouncements.prototype;
  dart.addRtiResources(_engine.AccessibilityAnnouncements, ["_engine|AccessibilityAnnouncements"]);
  dart.setMethodSignature(_engine.AccessibilityAnnouncements, () => dart.global.Object.setPrototypeOf({
    ariaLiveElementFor: T$12.AssertivenessToDomHTMLElement(),
    handleMessage: T$12.StandardMessageCodecAndByteDataNTovoid(),
    announce: T$12.StringAndAssertivenessTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.AccessibilityAnnouncements))));
  dart.setStaticMethodSignature(_engine.AccessibilityAnnouncements, () => ['new', '_createElement']);
  dart.setLibraryUri(_engine.AccessibilityAnnouncements, I[220]);
  dart.setFieldSignature(_engine.AccessibilityAnnouncements, () => dart.global.Object.setPrototypeOf({
    [_politeElement$]: {type: T$10.DomHTMLElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_assertiveElement$]: {type: T$10.DomHTMLElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_appendSpace]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AccessibilityAnnouncements))));
  _engine._CheckableKind = class _CheckableKind extends core._Enum {
    [_enumToString]() {
      return "_CheckableKind." + dart.str(this[_name$]);
    }
  };
  (_engine._CheckableKind.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[339], 18, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[339], 18, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine._CheckableKind).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine._CheckableKind.prototype;
  dart.addRtiResources(_engine._CheckableKind, ["_engine|_CheckableKind"]);
  dart.setMethodSignature(_engine._CheckableKind, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._CheckableKind))));
  dart.setLibraryUri(_engine._CheckableKind, I[220]);
  dart.setStaticFieldSignature(_engine._CheckableKind, () => ['values', 'checkbox', 'radio', 'toggle']);
  dart.defineLazy(_engine._CheckableKind, {
    /*_engine._CheckableKind.values*/get values() {
      return C[927] || CT.C927;
    },
    /*_engine._CheckableKind.checkbox*/get checkbox() {
      return C[928] || CT.C928;
    },
    /*_engine._CheckableKind.radio*/get radio() {
      return C[929] || CT.C929;
    },
    /*_engine._CheckableKind.toggle*/get toggle() {
      return C[930] || CT.C930;
    }
  }, false);
  var _kind$ = dart.privateName(_engine, "_kind");
  var _updateDisabledAttribute = dart.privateName(_engine, "_updateDisabledAttribute");
  var _removeDisabledAttribute = dart.privateName(_engine, "_removeDisabledAttribute");
  var role$ = dart.privateName(_engine, "PrimaryRoleManager.role");
  var semanticsObject$ = dart.privateName(_engine, "PrimaryRoleManager.semanticsObject");
  var __PrimaryRoleManager_element = dart.privateName(_engine, "_#PrimaryRoleManager#element");
  var __PrimaryRoleManager_element_isSet = dart.privateName(_engine, "_#PrimaryRoleManager#element#isSet");
  var _secondaryRoleManagers = dart.privateName(_engine, "_secondaryRoleManagers");
  var _focusable = dart.privateName(_engine, "_focusable");
  var _labelAndValue = dart.privateName(_engine, "_labelAndValue");
  var _updateIdentifier = dart.privateName(_engine, "_updateIdentifier");
  _engine.PrimaryRoleManager = class PrimaryRoleManager extends core.Object {
    get role() {
      return this[role$];
    }
    set role(value) {
      super.role = value;
    }
    get semanticsObject() {
      return this[semanticsObject$];
    }
    set semanticsObject(value) {
      super.semanticsObject = value;
    }
    get element() {
      let t$36594;
      return dart.test(this[__PrimaryRoleManager_element_isSet]) ? (t$36594 = this[__PrimaryRoleManager_element], t$36594) : dart.throw(new _internal.LateError.fieldNI("element"));
    }
    set element(element$35param) {
      if (element$35param == null) dart.nullFailed(I[340], 436, 25, "element#param");
      if (dart.test(this[__PrimaryRoleManager_element_isSet]))
        dart.throw(new _internal.LateError.fieldAI("element"));
      else {
        this[__PrimaryRoleManager_element_isSet] = true;
        this[__PrimaryRoleManager_element] = element$35param;
      }
    }
    get secondaryRoleManagers() {
      return this[_secondaryRoleManagers];
    }
    get debugSecondaryRoles() {
      let t$36594, t$36594$;
      t$36594$ = (t$36594 = this[_secondaryRoleManagers], t$36594 == null ? null : t$36594[$map](T$12.Role(), dart.fn(manager => {
        if (manager == null) dart.nullFailed(I[340], 452, 82, "manager");
        return manager.role;
      }, T$12.RoleManagerToRole()))[$toList]());
      return t$36594$ == null ? C[931] || CT.C931 : t$36594$;
    }
    createElement() {
      return _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-semantics");
    }
    static _initElement(element, semanticsObject) {
      let t$36594;
      if (element == null) dart.nullFailed(I[340], 457, 45, "element");
      if (semanticsObject == null) dart.nullFailed(I[340], 457, 70, "semanticsObject");
      t$36594 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36594, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#overflow'](t$36594, "visible");
        return t$36594;
      })();
      _engine['DomElementExtension|setAttribute'](element, "id", "flt-semantic-node-" + dart.str(semanticsObject.id));
      if (semanticsObject.id === 0 && !dart.test(_engine.configuration.debugShowSemanticsNodes)) {
        _engine['DomCSSStyleDeclarationExtension|set#filter'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "opacity(0%)");
        _engine['DomCSSStyleDeclarationExtension|set#color'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "rgba(0,0,0,0)");
      }
      if (dart.test(_engine.configuration.debugShowSemanticsNodes)) {
        _engine['DomCSSStyleDeclarationExtension|set#outline'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "1px solid green");
      }
      return element;
    }
    initState() {
    }
    setAriaRole(ariaRoleName) {
      if (ariaRoleName == null) dart.nullFailed(I[340], 504, 27, "ariaRoleName");
      this.setAttribute("role", ariaRoleName);
    }
    setAttribute(name, value) {
      if (name == null) dart.nullFailed(I[340], 509, 28, "name");
      if (value == null) dart.nullFailed(I[340], 509, 41, "value");
      _engine['DomElementExtension|setAttribute'](this.element, name, value);
    }
    append(child) {
      if (child == null) dart.nullFailed(I[340], 513, 26, "child");
      this.element.append(child);
    }
    removeAttribute(name) {
      if (name == null) dart.nullFailed(I[340], 517, 31, "name");
      return _engine['DomElementExtension|removeAttribute'](this.element, name);
    }
    addEventListener(type, listener, useCapture = null) {
      if (type == null) dart.nullFailed(I[340], 519, 32, "type");
      return _engine['DomEventTargetExtension|addEventListener'](this.element, type, listener, useCapture);
    }
    removeEventListener(type, listener, useCapture = null) {
      if (type == null) dart.nullFailed(I[340], 521, 35, "type");
      return _engine['DomEventTargetExtension|removeEventListener'](this.element, type, listener, useCapture);
    }
    get focusable() {
      return this[_focusable];
    }
    addFocusManagement() {
      this.addSecondaryRole(this[_focusable] = new _engine.Focusable.new(this.semanticsObject, this));
    }
    addLiveRegion() {
      this.addSecondaryRole(new _engine.LiveRegion.new(this.semanticsObject, this));
    }
    addRouteName() {
      this.addSecondaryRole(new _engine.RouteName.new(this.semanticsObject, this));
    }
    get labelAndValue() {
      return this[_labelAndValue];
    }
    addLabelAndValue(opts) {
      let preferredRepresentation = opts && 'preferredRepresentation' in opts ? opts.preferredRepresentation : null;
      if (preferredRepresentation == null) dart.nullFailed(I[340], 547, 56, "preferredRepresentation");
      this.addSecondaryRole(this[_labelAndValue] = new _engine.LabelAndValue.new(this.semanticsObject, this, {preferredRepresentation: preferredRepresentation}));
    }
    addTappable() {
      this.addSecondaryRole(new _engine.Tappable.new(this.semanticsObject, this));
    }
    addSecondaryRole(secondaryRoleManager) {
      let t$36594;
      if (secondaryRoleManager == null) dart.nullFailed(I[340], 561, 37, "secondaryRoleManager");
      if (!((t$36594 = this[_secondaryRoleManagers], t$36594 == null ? null : t$36594[$any](dart.fn(manager => {
        if (manager == null) dart.nullFailed(I[340], 563, 48, "manager");
        return manager.role == secondaryRoleManager.role;
      }, T$12.RoleManagerTobool()))) !== true)) dart.assertFailed("Cannot add secondary role " + dart.str(secondaryRoleManager.role) + ". This object already has this secondary role.", I[340], 563, 7, "_secondaryRoleManagers?.any((RoleManager manager) => manager.role == secondaryRoleManager.role) != true");
      this[_secondaryRoleManagers] == null ? this[_secondaryRoleManagers] = G$.JSArrayOfRoleManager().of([]) : null;
      dart.nullCheck(this[_secondaryRoleManagers])[$add](secondaryRoleManager);
    }
    update() {
      let secondaryRoles = this[_secondaryRoleManagers];
      if (secondaryRoles == null) {
        return;
      }
      for (let secondaryRole of secondaryRoles) {
        secondaryRole.update();
      }
      if (dart.test(this.semanticsObject.isIdentifierDirty)) {
        this[_updateIdentifier]();
      }
    }
    [_updateIdentifier]() {
      if (dart.test(this.semanticsObject.hasIdentifier)) {
        this.setAttribute("flt-semantics-identifier", dart.nullCheck(this.semanticsObject.identifier));
      } else {
        this.removeAttribute("flt-semantics-identifier");
      }
    }
    get isDisposed() {
      return this[_isDisposed];
    }
    dispose() {
      this.removeAttribute("role");
      this[_isDisposed] = true;
    }
  };
  (_engine.PrimaryRoleManager.withBasics = function(role, semanticsObject, opts) {
    if (role == null) dart.nullFailed(I[340], 419, 38, "role");
    if (semanticsObject == null) dart.nullFailed(I[340], 419, 49, "semanticsObject");
    let preferredLabelRepresentation = opts && 'preferredLabelRepresentation' in opts ? opts.preferredLabelRepresentation : null;
    if (preferredLabelRepresentation == null) dart.nullFailed(I[340], 419, 97, "preferredLabelRepresentation");
    this[__PrimaryRoleManager_element] = null;
    this[__PrimaryRoleManager_element_isSet] = false;
    this[_secondaryRoleManagers] = null;
    this[_focusable] = null;
    this[_labelAndValue] = null;
    this[_isDisposed] = false;
    this[role$] = role;
    this[semanticsObject$] = semanticsObject;
    this.element = _engine.PrimaryRoleManager._initElement(this.createElement(), this.semanticsObject);
    this.addFocusManagement();
    this.addLiveRegion();
    this.addRouteName();
    this.addLabelAndValue({preferredRepresentation: preferredLabelRepresentation});
  }).prototype = _engine.PrimaryRoleManager.prototype;
  (_engine.PrimaryRoleManager.blank = function(role, semanticsObject) {
    if (role == null) dart.nullFailed(I[340], 432, 33, "role");
    if (semanticsObject == null) dart.nullFailed(I[340], 432, 44, "semanticsObject");
    this[__PrimaryRoleManager_element] = null;
    this[__PrimaryRoleManager_element_isSet] = false;
    this[_secondaryRoleManagers] = null;
    this[_focusable] = null;
    this[_labelAndValue] = null;
    this[_isDisposed] = false;
    this[role$] = role;
    this[semanticsObject$] = semanticsObject;
    this.element = _engine.PrimaryRoleManager._initElement(this.createElement(), this.semanticsObject);
  }).prototype = _engine.PrimaryRoleManager.prototype;
  dart.addRtiResources(_engine.PrimaryRoleManager, ["_engine|PrimaryRoleManager"]);
  dart.setMethodSignature(_engine.PrimaryRoleManager, () => dart.global.Object.setPrototypeOf({
    createElement: T$10.VoidToDomElement(),
    initState: T$.VoidTovoid(),
    setAriaRole: T$.StringTovoid(),
    setAttribute: T$3.StringAndObjectTovoid(),
    append: T$9.DomElementTovoid(),
    removeAttribute: T$.StringTovoid(),
    addEventListener: T$12.StringAndDomEventListenerNAndboolNTovoid(),
    removeEventListener: T$12.StringAndDomEventListenerNAndboolNTovoid(),
    addFocusManagement: T$.VoidTovoid(),
    addLiveRegion: T$.VoidTovoid(),
    addRouteName: T$.VoidTovoid(),
    addLabelAndValue: T$12.__Tovoid$20(),
    addTappable: T$.VoidTovoid(),
    addSecondaryRole: T$12.RoleManagerTovoid(),
    update: T$.VoidTovoid(),
    [_updateIdentifier]: T$.VoidTovoid(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PrimaryRoleManager))));
  dart.setStaticMethodSignature(_engine.PrimaryRoleManager, () => ['_initElement']);
  dart.setGetterSignature(_engine.PrimaryRoleManager, () => dart.global.Object.setPrototypeOf({
    element: T$9.DomElement(),
    secondaryRoleManagers: T$12.ListNOfRoleManager(),
    debugSecondaryRoles: T$12.ListOfRole(),
    focusable: T$12.FocusableN(),
    labelAndValue: T$12.LabelAndValueN(),
    isDisposed: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PrimaryRoleManager))));
  dart.setSetterSignature(_engine.PrimaryRoleManager, () => dart.global.Object.setPrototypeOf({element: T$9.DomElement()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.PrimaryRoleManager))));
  dart.setLibraryUri(_engine.PrimaryRoleManager, I[220]);
  dart.setFieldSignature(_engine.PrimaryRoleManager, () => dart.global.Object.setPrototypeOf({
    [__PrimaryRoleManager_element]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__PrimaryRoleManager_element_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    role: {type: T$12.PrimaryRole(), isConst: false, isFinal: true, libraryUri: I[220]},
    semanticsObject: {type: T$12.SemanticsObject(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_secondaryRoleManagers]: {type: T$12.ListNOfRoleManager(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_focusable]: {type: T$12.FocusableN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_labelAndValue]: {type: T$12.LabelAndValueN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_isDisposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PrimaryRoleManager))));
  _engine.Checkable = class Checkable extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[339], 51, 29, "semanticsObject");
      return new _engine.Checkable.new(semanticsObject);
    }
    update() {
      super.update();
      if (dart.test(this.semanticsObject.isFlagsDirty)) {
        switch (this[_kind$]) {
          case C[928] || CT.C928:
            {
              this.setAriaRole("checkbox");
              break;
            }
          case C[929] || CT.C929:
            {
              this.setAriaRole("radio");
              break;
            }
          case C[930] || CT.C930:
            {
              this.setAriaRole("switch");
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
        }
        this[_updateDisabledAttribute]();
        this.setAttribute("aria-checked", dart.test(this.semanticsObject.hasFlag(ui.SemanticsFlag.isChecked)) || dart.test(this.semanticsObject.hasFlag(ui.SemanticsFlag.isToggled)) ? "true" : "false");
      }
    }
    dispose() {
      super.dispose();
      this[_removeDisabledAttribute]();
    }
    [_updateDisabledAttribute]() {
      if (this.semanticsObject.enabledState() == _engine.EnabledState.disabled) {
        this.setAttribute("aria-disabled", "true");
        this.setAttribute("disabled", "true");
      } else {
        this[_removeDisabledAttribute]();
      }
    }
    [_removeDisabledAttribute]() {
      this.removeAttribute("aria-disabled");
      this.removeAttribute("disabled");
    }
    focusAsRouteDefault() {
      let t$36594, t$36594$;
      t$36594$ = (t$36594 = this.focusable, t$36594 == null ? null : t$36594.focusAsRouteDefault());
      return t$36594$ == null ? false : t$36594$;
    }
  };
  (_engine.Checkable.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[339], 51, 29, "semanticsObject");
    this[_kind$] = _engine._checkableKindFromSemanticsFlag(semanticsObject);
    dart.global.Object.getPrototypeOf(_engine.Checkable).withBasics.call(this, _engine.PrimaryRole.checkable, semanticsObject, {preferredLabelRepresentation: _engine.LabelRepresentation.ariaLabel});
    this.addTappable();
  }).prototype = _engine.Checkable.prototype;
  dart.addRtiResources(_engine.Checkable, ["_engine|Checkable"]);
  dart.setMethodSignature(_engine.Checkable, () => dart.global.Object.setPrototypeOf({
    [_updateDisabledAttribute]: T$.VoidTovoid(),
    [_removeDisabledAttribute]: T$.VoidTovoid(),
    focusAsRouteDefault: T$.VoidTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Checkable))));
  dart.setLibraryUri(_engine.Checkable, I[220]);
  dart.setFieldSignature(_engine.Checkable, () => dart.global.Object.setPrototypeOf({[_kind$]: {type: T$12._CheckableKind(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Checkable))));
  var _setDefaultFocus = dart.privateName(_engine, "_setDefaultFocus");
  _engine.Dialog = class Dialog extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[341], 11, 26, "semanticsObject");
      return new _engine.Dialog.new(semanticsObject);
    }
    [_setDefaultFocus]() {
      this.semanticsObject.visitDepthFirstInTraversalOrder(dart.fn(node => {
        if (node == null) dart.nullFailed(I[341], 39, 70, "node");
        let roleManager = node.primaryRole;
        if (roleManager == null) {
          return true;
        }
        let didTakeFocus = roleManager.focusAsRouteDefault();
        return !dart.test(didTakeFocus);
      }, T$12.SemanticsObjectTobool()));
    }
    update() {
      let t$36594;
      super.update();
      if (dart.test(this.semanticsObject.namesRoute)) {
        let label = this.semanticsObject.label;
        if (!dart.test(dart.fn(() => {
          if (label == null || label[$trim]()[$isEmpty]) {
            _engine.printWarning("Semantic node " + dart.str(this.semanticsObject.id) + " had both scopesRoute and " + "namesRoute set, indicating a self-labelled dialog, but it is " + "missing the label. A dialog should be labelled either by setting " + "namesRoute on itself and providing a label, or by containing a " + "child node with namesRoute that can describe it with its content.");
          }
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[341], 60, 14, "() {\n        if (label == null || label.trim().isEmpty) {\n          printWarning(\n            'Semantic node ${semanticsObject.id} had both scopesRoute and '\n            'namesRoute set, indicating a self-labelled dialog, but it is '\n            'missing the label. A dialog should be labelled either by setting '\n            'namesRoute on itself and providing a label, or by containing a '\n            'child node with namesRoute that can describe it with its content.'\n          );\n        }\n        return true;\n      }()");
        this.setAttribute("aria-label", (t$36594 = label, t$36594 == null ? "" : t$36594));
        this.setAriaRole("dialog");
      }
    }
    describeBy(routeName) {
      if (routeName == null) dart.nullFailed(I[341], 79, 29, "routeName");
      if (dart.test(this.semanticsObject.namesRoute)) {
        return;
      }
      this.setAriaRole("dialog");
      this.setAttribute("aria-describedby", _engine['DomElementExtension|get#id'](routeName.semanticsObject.element));
    }
    focusAsRouteDefault() {
      return false;
    }
  };
  (_engine.Dialog.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[341], 11, 26, "semanticsObject");
    dart.global.Object.getPrototypeOf(_engine.Dialog).blank.call(this, _engine.PrimaryRole.dialog, semanticsObject);
    this.addFocusManagement();
    this.addLiveRegion();
    semanticsObject.owner.addOneTimePostUpdateCallback(dart.fn(() => {
      if (dart.test(semanticsObject.owner.hasNodeRequestingFocus)) {
        return;
      }
      this[_setDefaultFocus]();
    }, T$.VoidTovoid()));
  }).prototype = _engine.Dialog.prototype;
  dart.addRtiResources(_engine.Dialog, ["_engine|Dialog"]);
  dart.setMethodSignature(_engine.Dialog, () => dart.global.Object.setPrototypeOf({
    [_setDefaultFocus]: T$.VoidTovoid(),
    describeBy: T$12.RouteNameTovoid(),
    focusAsRouteDefault: T$.VoidTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Dialog))));
  dart.setLibraryUri(_engine.Dialog, I[220]);
  var _dialog = dart.privateName(_engine, "_dialog");
  var _lookUpNearestAncestorDialog = dart.privateName(_engine, "_lookUpNearestAncestorDialog");
  var role$0 = dart.privateName(_engine, "RoleManager.role");
  var semanticsObject$0 = dart.privateName(_engine, "RoleManager.semanticsObject");
  var owner$ = dart.privateName(_engine, "RoleManager.owner");
  _engine.RoleManager = class RoleManager extends core.Object {
    get role() {
      return this[role$0];
    }
    set role(value) {
      super.role = value;
    }
    get semanticsObject() {
      return this[semanticsObject$0];
    }
    set semanticsObject(value) {
      super.semanticsObject = value;
    }
    get owner() {
      return this[owner$];
    }
    set owner(value) {
      super.owner = value;
    }
    get isDisposed() {
      return this[_isDisposed];
    }
    dispose() {
      this[_isDisposed] = true;
    }
  };
  (_engine.RoleManager.new = function(role, semanticsObject, owner) {
    if (role == null) dart.nullFailed(I[340], 732, 20, "role");
    if (semanticsObject == null) dart.nullFailed(I[340], 732, 31, "semanticsObject");
    if (owner == null) dart.nullFailed(I[340], 732, 53, "owner");
    this[_isDisposed] = false;
    this[role$0] = role;
    this[semanticsObject$0] = semanticsObject;
    this[owner$] = owner;
    ;
  }).prototype = _engine.RoleManager.prototype;
  dart.addRtiResources(_engine.RoleManager, ["_engine|RoleManager"]);
  dart.setMethodSignature(_engine.RoleManager, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RoleManager))));
  dart.setGetterSignature(_engine.RoleManager, () => dart.global.Object.setPrototypeOf({isDisposed: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.RoleManager))));
  dart.setLibraryUri(_engine.RoleManager, I[220]);
  dart.setFieldSignature(_engine.RoleManager, () => dart.global.Object.setPrototypeOf({
    role: {type: T$12.Role(), isConst: false, isFinal: true, libraryUri: I[220]},
    semanticsObject: {type: T$12.SemanticsObject(), isConst: false, isFinal: true, libraryUri: I[220]},
    owner: {type: T$12.PrimaryRoleManager(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_isDisposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RoleManager))));
  _engine.RouteName = class RouteName extends _engine.RoleManager {
    static ['_#new#tearOff'](semanticsObject, owner) {
      if (semanticsObject == null) dart.nullFailed(I[341], 103, 21, "semanticsObject");
      if (owner == null) dart.nullFailed(I[341], 104, 24, "owner");
      return new _engine.RouteName.new(semanticsObject, owner);
    }
    update() {
      if (!dart.test(this.semanticsObject.namesRoute)) {
        return;
      }
      if (dart.test(this.semanticsObject.isLabelDirty)) {
        let dialog = this[_dialog];
        if (dialog != null) {
          dialog.describeBy(this);
        } else {
          this.semanticsObject.owner.addOneTimePostUpdateCallback(dart.fn(() => {
            let t$36594;
            if (!dart.test(this.isDisposed)) {
              this[_lookUpNearestAncestorDialog]();
              t$36594 = this[_dialog];
              t$36594 == null ? null : t$36594.describeBy(this);
            }
          }, T$.VoidTovoid()));
        }
      }
    }
    [_lookUpNearestAncestorDialog]() {
      let t$36594, t$36594$;
      let parent = this.semanticsObject.parent;
      while (parent != null && (t$36594 = parent.primaryRole, t$36594 == null ? null : t$36594.role) != _engine.PrimaryRole.dialog) {
        parent = parent.parent;
      }
      if (parent != null && (t$36594$ = parent.primaryRole, t$36594$ == null ? null : t$36594$.role) == _engine.PrimaryRole.dialog) {
        this[_dialog] = T$12.Dialog()[_as](dart.nullCheck(parent.primaryRole));
      }
    }
  };
  (_engine.RouteName.new = function(semanticsObject, owner) {
    if (semanticsObject == null) dart.nullFailed(I[341], 103, 21, "semanticsObject");
    if (owner == null) dart.nullFailed(I[341], 104, 24, "owner");
    this[_dialog] = null;
    dart.global.Object.getPrototypeOf(_engine.RouteName).new.call(this, _engine.Role.routeName, semanticsObject, owner);
    ;
  }).prototype = _engine.RouteName.prototype;
  dart.addRtiResources(_engine.RouteName, ["_engine|RouteName"]);
  dart.setMethodSignature(_engine.RouteName, () => dart.global.Object.setPrototypeOf({
    update: T$.VoidTovoid(),
    [_lookUpNearestAncestorDialog]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RouteName))));
  dart.setLibraryUri(_engine.RouteName, I[220]);
  dart.setFieldSignature(_engine.RouteName, () => dart.global.Object.setPrototypeOf({[_dialog]: {type: T$12.DialogN(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RouteName))));
  var _focusManager = dart.privateName(_engine, "_focusManager");
  _engine.Focusable = class Focusable extends _engine.RoleManager {
    static ['_#new#tearOff'](semanticsObject, owner) {
      if (semanticsObject == null) dart.nullFailed(I[342], 27, 29, "semanticsObject");
      if (owner == null) dart.nullFailed(I[342], 27, 65, "owner");
      return new _engine.Focusable.new(semanticsObject, owner);
    }
    focusAsRouteDefault() {
      _engine['DomElementExtension|focus'](this.owner.element);
      return true;
    }
    update() {
      if (dart.test(this.semanticsObject.isFocusable)) {
        if (!dart.test(this[_focusManager].isManaging)) {
          this[_focusManager].manage(this.semanticsObject.id, this.owner.element);
        }
        this[_focusManager].changeFocus(dart.test(this.semanticsObject.hasFocus) && (!dart.test(this.semanticsObject.hasEnabledState) || dart.test(this.semanticsObject.isEnabled)));
      } else {
        this[_focusManager].stopManaging();
      }
    }
    dispose() {
      super.dispose();
      this[_focusManager].stopManaging();
    }
  };
  (_engine.Focusable.new = function(semanticsObject, owner) {
    if (semanticsObject == null) dart.nullFailed(I[342], 27, 29, "semanticsObject");
    if (owner == null) dart.nullFailed(I[342], 27, 65, "owner");
    this[_focusManager] = new _engine.AccessibilityFocusManager.new(semanticsObject.owner);
    dart.global.Object.getPrototypeOf(_engine.Focusable).new.call(this, _engine.Role.focusable, semanticsObject, owner);
    ;
  }).prototype = _engine.Focusable.prototype;
  dart.addRtiResources(_engine.Focusable, ["_engine|Focusable"]);
  dart.setMethodSignature(_engine.Focusable, () => dart.global.Object.setPrototypeOf({
    focusAsRouteDefault: T$.VoidTobool(),
    update: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Focusable))));
  dart.setLibraryUri(_engine.Focusable, I[220]);
  dart.setFieldSignature(_engine.Focusable, () => dart.global.Object.setPrototypeOf({[_focusManager]: {type: T$12.AccessibilityFocusManager(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Focusable))));
  var _target = dart.privateName(_engine, "_target");
  var _lastSetValue = dart.privateName(_engine, "_lastSetValue");
  var _setFocusFromDom = dart.privateName(_engine, "_setFocusFromDom");
  _engine.AccessibilityFocusManager = class AccessibilityFocusManager extends core.Object {
    static ['_#new#tearOff'](_owner) {
      if (_owner == null) dart.nullFailed(I[342], 95, 34, "_owner");
      return new _engine.AccessibilityFocusManager.new(_owner);
    }
    get isManaging() {
      return this[_target] != null;
    }
    manage(semanticsNodeId, element) {
      let t$36594, t$36594$, t$36595, t$36596, t$36594$0, t$36595$, t$36596$;
      if (semanticsNodeId == null) dart.nullFailed(I[342], 122, 19, "semanticsNodeId");
      if (element == null) dart.nullFailed(I[342], 122, 47, "element");
      if (element == (t$36594 = this[_target], t$36594 == null ? null : t$36594.element)) {
        let previousTarget = dart.nullCheck(this[_target]);
        if (semanticsNodeId == previousTarget.semanticsNodeId) {
          return;
        }
        this[_target] = (t$36596 = semanticsNodeId, t$36595 = previousTarget.element, t$36594$ = previousTarget.domFocusListener, dart.recordLiteral("4;domBlurListener,domFocusListener,element,semanticsNodeId", 0, ["domBlurListener", "domFocusListener", "element", "semanticsNodeId"], [previousTarget.domBlurListener, t$36594$, t$36595, t$36596]));
        return;
      }
      if (this[_target] != null) {
        this.stopManaging();
      }
      let newTarget = (t$36596$ = semanticsNodeId, t$36595$ = element, t$36594$0 = _engine.createDomEventListener(dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[342], 147, 49, "_");
        return this[_setFocusFromDom](true);
      }, T$10.DomEventTovoid())), dart.recordLiteral("4;domBlurListener,domFocusListener,element,semanticsNodeId", 0, ["domBlurListener", "domFocusListener", "element", "semanticsNodeId"], [_engine.createDomEventListener(dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[342], 148, 48, "_");
          return this[_setFocusFromDom](false);
        }, T$10.DomEventTovoid())), t$36594$0, t$36595$, t$36596$]));
      this[_target] = newTarget;
      _engine['DomElementExtension|set#tabIndex'](element, 0.0);
      _engine['DomEventTargetExtension|addEventListener'](element, "focus", newTarget.domFocusListener);
      _engine['DomEventTargetExtension|addEventListener'](element, "blur", newTarget.domBlurListener);
    }
    stopManaging() {
      let target = this[_target];
      this[_target] = null;
      this[_lastSetValue] = null;
      if (target == null) {
        return;
      }
      _engine['DomEventTargetExtension|removeEventListener'](target.element, "focus", target.domFocusListener);
      _engine['DomEventTargetExtension|removeEventListener'](target.element, "blur", target.domBlurListener);
    }
    [_setFocusFromDom](acquireFocus) {
      if (acquireFocus == null) dart.nullFailed(I[342], 172, 30, "acquireFocus");
      let target = this[_target];
      if (target == null) {
        return;
      }
      _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(target.semanticsNodeId, dart.test(acquireFocus) ? ui.SemanticsAction.didGainAccessibilityFocus : ui.SemanticsAction.didLoseAccessibilityFocus, null);
    }
    changeFocus(value) {
      if (value == null) dart.nullFailed(I[342], 191, 25, "value");
      let target = this[_target];
      if (target == null) {
        this[_lastSetValue] = null;
        if (!dart.test(dart.fn(() => {
          _engine.printWarning("Cannot change focus to " + dart.str(value) + ". No element is being managed by this " + "AccessibilityFocusManager.");
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[342], 200, 14, "() {\n        printWarning(\n          'Cannot change focus to $value. No element is being managed by this '\n          'AccessibilityFocusManager.'\n        );\n        return true;\n      }()");
        return;
      }
      if (value == this[_lastSetValue]) {
        return;
      }
      this[_lastSetValue] = value;
      if (dart.test(value)) {
        this[_owner$].willRequestFocus();
      } else {
        return;
      }
      this[_owner$].addOneTimePostUpdateCallback(dart.fn(() => {
        if (!dart.equals(this[_target], target)) {
          return;
        }
        _engine['DomElementExtension|focus'](target.element);
      }, T$.VoidTovoid()));
    }
  };
  (_engine.AccessibilityFocusManager.new = function(_owner) {
    if (_owner == null) dart.nullFailed(I[342], 95, 34, "_owner");
    this[_target] = null;
    this[_lastSetValue] = null;
    this[_owner$] = _owner;
    ;
  }).prototype = _engine.AccessibilityFocusManager.prototype;
  dart.addRtiResources(_engine.AccessibilityFocusManager, ["_engine|AccessibilityFocusManager"]);
  dart.setMethodSignature(_engine.AccessibilityFocusManager, () => dart.global.Object.setPrototypeOf({
    manage: T$12.intAndDomElementTovoid(),
    stopManaging: T$.VoidTovoid(),
    [_setFocusFromDom]: T$1.boolTovoid(),
    changeFocus: T$1.boolTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.AccessibilityFocusManager))));
  dart.setGetterSignature(_engine.AccessibilityFocusManager, () => dart.global.Object.setPrototypeOf({isManaging: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.AccessibilityFocusManager))));
  dart.setLibraryUri(_engine.AccessibilityFocusManager, I[220]);
  dart.setFieldSignature(_engine.AccessibilityFocusManager, () => dart.global.Object.setPrototypeOf({
    [_owner$]: {type: T$12.EngineSemanticsOwner(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_target]: {type: T$12.RecNOf__$2(), isConst: false, isFinal: false},
    [_lastSetValue]: {type: T$.boolN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AccessibilityFocusManager))));
  _engine.Heading = class Heading extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[343], 10, 27, "semanticsObject");
      return new _engine.Heading.new(semanticsObject);
    }
    update() {
      super.update();
      if (!dart.test(this.semanticsObject.isHeadingLevelDirty)) {
        return;
      }
      this.addHeadingLevel(this.semanticsObject.headingLevel);
    }
    focusAsRouteDefault() {
      let t$36594, t$36594$;
      t$36594$ = (t$36594 = this.focusable, t$36594 == null ? null : t$36594.focusAsRouteDefault());
      return t$36594$ == null ? false : t$36594$;
    }
    addHeadingRole() {
      this.setAriaRole("heading");
    }
    addHeadingLevel(headingLevel) {
      if (headingLevel == null) dart.nullFailed(I[343], 33, 28, "headingLevel");
      _engine['DomElementExtension|setAttribute'](this.semanticsObject.element, "aria-level", headingLevel);
    }
  };
  (_engine.Heading.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[343], 10, 27, "semanticsObject");
    dart.global.Object.getPrototypeOf(_engine.Heading).blank.call(this, _engine.PrimaryRole.heading, semanticsObject);
    this.addHeadingRole();
  }).prototype = _engine.Heading.prototype;
  dart.addRtiResources(_engine.Heading, ["_engine|Heading"]);
  dart.setMethodSignature(_engine.Heading, () => dart.global.Object.setPrototypeOf({
    focusAsRouteDefault: T$.VoidTobool(),
    addHeadingRole: T$.VoidTovoid(),
    addHeadingLevel: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Heading))));
  dart.setLibraryUri(_engine.Heading, I[220]);
  var _auxiliaryImageElement = dart.privateName(_engine, "_auxiliaryImageElement");
  var _setLabel = dart.privateName(_engine, "_setLabel");
  var _cleanUpAuxiliaryElement = dart.privateName(_engine, "_cleanUpAuxiliaryElement");
  var _cleanupElement = dart.privateName(_engine, "_cleanupElement");
  _engine.ImageRoleManager = class ImageRoleManager extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[344], 13, 36, "semanticsObject");
      return new _engine.ImageRoleManager.new(semanticsObject);
    }
    focusAsRouteDefault() {
      let t$36594, t$36594$;
      t$36594$ = (t$36594 = this.focusable, t$36594 == null ? null : t$36594.focusAsRouteDefault());
      return t$36594$ == null ? false : t$36594$;
    }
    update() {
      let t$36594;
      super.update();
      if (dart.test(this.semanticsObject.isVisualOnly) && dart.test(this.semanticsObject.hasChildren)) {
        if (this[_auxiliaryImageElement] == null) {
          this[_auxiliaryImageElement] = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-semantics-img");
          if (dart.test(this.semanticsObject.hasChildren)) {
            t$36594 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_auxiliaryImageElement]), "style");
            (() => {
              _engine['DomCSSStyleDeclarationExtension|set#position'](t$36594, "absolute");
              _engine['DomCSSStyleDeclarationExtension|set#top'](t$36594, "0");
              _engine['DomCSSStyleDeclarationExtension|set#left'](t$36594, "0");
              _engine['DomCSSStyleDeclarationExtension|set#width'](t$36594, dart.str(dart.nullCheck(this.semanticsObject.rect).width) + "px");
              _engine['DomCSSStyleDeclarationExtension|set#height'](t$36594, dart.str(dart.nullCheck(this.semanticsObject.rect).height) + "px");
              return t$36594;
            })();
          }
          _engine['DomCSSStyleDeclarationExtension|set#fontSize'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_auxiliaryImageElement]), "style"), "6px");
          this.append(dart.nullCheck(this[_auxiliaryImageElement]));
        }
        _engine['DomElementExtension|setAttribute'](dart.nullCheck(this[_auxiliaryImageElement]), "role", "img");
        this[_setLabel](this[_auxiliaryImageElement]);
      } else if (dart.test(this.semanticsObject.isVisualOnly)) {
        this.setAriaRole("img");
        this[_setLabel](this.element);
        this[_cleanUpAuxiliaryElement]();
      } else {
        this[_cleanUpAuxiliaryElement]();
        this[_cleanupElement]();
      }
    }
    [_setLabel](element) {
      if (dart.test(this.semanticsObject.hasLabel)) {
        _engine['DomElementExtension|setAttribute'](dart.nullCheck(element), "aria-label", dart.nullCheck(this.semanticsObject.label));
      }
    }
    [_cleanUpAuxiliaryElement]() {
      if (this[_auxiliaryImageElement] != null) {
        dart.nullCheck(this[_auxiliaryImageElement]).remove();
        this[_auxiliaryImageElement] = null;
      }
    }
    [_cleanupElement]() {
      this.removeAttribute("aria-label");
    }
    dispose() {
      super.dispose();
      this[_cleanUpAuxiliaryElement]();
      this[_cleanupElement]();
    }
  };
  (_engine.ImageRoleManager.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[344], 13, 36, "semanticsObject");
    this[_auxiliaryImageElement] = null;
    dart.global.Object.getPrototypeOf(_engine.ImageRoleManager).blank.call(this, _engine.PrimaryRole.image, semanticsObject);
    this.addFocusManagement();
    this.addLiveRegion();
    this.addRouteName();
    this.addTappable();
  }).prototype = _engine.ImageRoleManager.prototype;
  dart.addRtiResources(_engine.ImageRoleManager, ["_engine|ImageRoleManager"]);
  dart.setMethodSignature(_engine.ImageRoleManager, () => dart.global.Object.setPrototypeOf({
    focusAsRouteDefault: T$.VoidTobool(),
    [_setLabel]: T$11.DomElementNTovoid(),
    [_cleanUpAuxiliaryElement]: T$.VoidTovoid(),
    [_cleanupElement]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ImageRoleManager))));
  dart.setLibraryUri(_engine.ImageRoleManager, I[220]);
  dart.setFieldSignature(_engine.ImageRoleManager, () => dart.global.Object.setPrototypeOf({[_auxiliaryImageElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ImageRoleManager))));
  var _element$ = dart.privateName(_engine, "_element");
  var _currentSurrogateValue = dart.privateName(_engine, "_currentSurrogateValue");
  var __Incrementable__gestureModeListener = dart.privateName(_engine, "_#Incrementable#_gestureModeListener");
  var __Incrementable__gestureModeListener_isSet = dart.privateName(_engine, "_#Incrementable#_gestureModeListener#isSet");
  var _pendingResync = dart.privateName(_engine, "_pendingResync");
  var _gestureModeListener = dart.privateName(_engine, "_gestureModeListener");
  var _enableBrowserGestureHandling = dart.privateName(_engine, "_enableBrowserGestureHandling");
  var _updateInputValues = dart.privateName(_engine, "_updateInputValues");
  var _disableBrowserGestureHandling = dart.privateName(_engine, "_disableBrowserGestureHandling");
  _engine.Incrementable = class Incrementable extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[345], 18, 33, "semanticsObject");
      return new _engine.Incrementable.new(semanticsObject);
    }
    focusAsRouteDefault() {
      _engine['DomElementExtension|focus'](this[_element$]);
      return true;
    }
    get [_gestureModeListener]() {
      let t$36594;
      return dart.test(this[__Incrementable__gestureModeListener_isSet]) ? (t$36594 = this[__Incrementable__gestureModeListener], t$36594) : dart.throw(new _internal.LateError.fieldNI("_gestureModeListener"));
    }
    set [_gestureModeListener](_gestureModeListener$35param) {
      if (_gestureModeListener$35param == null) dart.nullFailed(I[345], 81, 34, "_gestureModeListener#param");
      if (dart.test(this[__Incrementable__gestureModeListener_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_gestureModeListener"));
      else {
        this[__Incrementable__gestureModeListener_isSet] = true;
        this[__Incrementable__gestureModeListener] = _gestureModeListener$35param;
      }
    }
    update() {
      super.update();
      switch (_engine.EngineSemantics.instance.gestureMode) {
        case C[932] || CT.C932:
          {
            this[_enableBrowserGestureHandling]();
            this[_updateInputValues]();
            break;
          }
        case C[933] || CT.C933:
          {
            this[_disableBrowserGestureHandling]();
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
      this[_focusManager].changeFocus(this.semanticsObject.hasFocus);
    }
    [_enableBrowserGestureHandling]() {
      if (!(_engine.EngineSemantics.instance.gestureMode == _engine.GestureMode.browserGestures)) dart.assertFailed(null, I[345], 105, 12, "EngineSemantics.instance.gestureMode == GestureMode.browserGestures");
      if (!dart.nullCheck(_engine['DomHTMLInputElementExtension|get#disabled'](this[_element$]))) {
        return;
      }
      _engine['DomHTMLInputElementExtension|set#disabled'](this[_element$], false);
    }
    [_updateInputValues]() {
      if (!(_engine.EngineSemantics.instance.gestureMode == _engine.GestureMode.browserGestures)) dart.assertFailed(null, I[345], 113, 12, "EngineSemantics.instance.gestureMode == GestureMode.browserGestures");
      let updateNeeded = dart.test(this[_pendingResync]) || dart.test(this.semanticsObject.isValueDirty) || dart.test(this.semanticsObject.isIncreasedValueDirty) || dart.test(this.semanticsObject.isDecreasedValueDirty);
      if (!updateNeeded) {
        return;
      }
      this[_pendingResync] = false;
      let surrogateTextValue = dart.str(this[_currentSurrogateValue]);
      _engine['DomHTMLInputElementExtension|set#value'](this[_element$], surrogateTextValue);
      _engine['DomElementExtension|setAttribute'](this[_element$], "aria-valuenow", surrogateTextValue);
      _engine['DomElementExtension|setAttribute'](this[_element$], "aria-valuetext", dart.nullCheck(this.semanticsObject.value));
      let canIncrease = dart.nullCheck(this.semanticsObject.increasedValue)[$isNotEmpty];
      let surrogateMaxTextValue = canIncrease ? dart.strSafe(dart.notNull(this[_currentSurrogateValue]) + 1) : surrogateTextValue;
      _engine['DomHTMLInputElementExtension|set#max'](this[_element$], surrogateMaxTextValue);
      _engine['DomElementExtension|setAttribute'](this[_element$], "aria-valuemax", surrogateMaxTextValue);
      let canDecrease = dart.nullCheck(this.semanticsObject.decreasedValue)[$isNotEmpty];
      let surrogateMinTextValue = canDecrease ? dart.strSafe(dart.notNull(this[_currentSurrogateValue]) - 1) : surrogateTextValue;
      _engine['DomHTMLInputElementExtension|set#min'](this[_element$], surrogateMinTextValue);
      _engine['DomElementExtension|setAttribute'](this[_element$], "aria-valuemin", surrogateMinTextValue);
    }
    [_disableBrowserGestureHandling]() {
      if (dart.nullCheck(_engine['DomHTMLInputElementExtension|get#disabled'](this[_element$]))) {
        return;
      }
      _engine['DomHTMLInputElementExtension|set#disabled'](this[_element$], true);
    }
    dispose() {
      super.dispose();
      this[_focusManager].stopManaging();
      _engine.EngineSemantics.instance.removeGestureModeListener(this[_gestureModeListener]);
      this[_disableBrowserGestureHandling]();
      this[_element$].remove();
    }
  };
  (_engine.Incrementable.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[345], 18, 33, "semanticsObject");
    this[_element$] = _engine.createDomHTMLInputElement();
    this[_currentSurrogateValue] = 1;
    this[__Incrementable__gestureModeListener] = null;
    this[__Incrementable__gestureModeListener_isSet] = false;
    this[_pendingResync] = false;
    this[_focusManager] = new _engine.AccessibilityFocusManager.new(semanticsObject.owner);
    dart.global.Object.getPrototypeOf(_engine.Incrementable).blank.call(this, _engine.PrimaryRole.incrementable, semanticsObject);
    this.addLiveRegion();
    this.addRouteName();
    this.addLabelAndValue({preferredRepresentation: _engine.LabelRepresentation.ariaLabel});
    this.append(this[_element$]);
    _engine['DomHTMLInputElementExtension|set#type'](this[_element$], "range");
    _engine['DomElementExtension|setAttribute'](this[_element$], "role", "slider");
    _engine['DomEventTargetExtension|addEventListener'](this[_element$], "change", _engine.createDomEventListener(dart.fn(_ => {
      if (_ == null) dart.nullFailed(I[345], 32, 65, "_");
      if (dart.nullCheck(_engine['DomHTMLInputElementExtension|get#disabled'](this[_element$]))) {
        return;
      }
      this[_pendingResync] = true;
      let newInputValue = core.int.parse(dart.nullCheck(_engine['DomHTMLInputElementExtension|get#value'](this[_element$])));
      if (dart.notNull(newInputValue) > dart.notNull(this[_currentSurrogateValue])) {
        this[_currentSurrogateValue] = dart.notNull(this[_currentSurrogateValue]) + 1;
        _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(semanticsObject.id, ui.SemanticsAction.increase, null);
      } else if (dart.notNull(newInputValue) < dart.notNull(this[_currentSurrogateValue])) {
        this[_currentSurrogateValue] = dart.notNull(this[_currentSurrogateValue]) - 1;
        _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(semanticsObject.id, ui.SemanticsAction.decrease, null);
      }
    }, T$10.DomEventTovoid())));
    this[_gestureModeListener] = dart.fn(mode => {
      if (mode == null) dart.nullFailed(I[345], 51, 41, "mode");
      this.update();
    }, T$12.GestureModeTovoid());
    _engine.EngineSemantics.instance.addGestureModeListener(this[_gestureModeListener]);
    this[_focusManager].manage(semanticsObject.id, this[_element$]);
  }).prototype = _engine.Incrementable.prototype;
  dart.addRtiResources(_engine.Incrementable, ["_engine|Incrementable"]);
  dart.setMethodSignature(_engine.Incrementable, () => dart.global.Object.setPrototypeOf({
    focusAsRouteDefault: T$.VoidTobool(),
    [_enableBrowserGestureHandling]: T$.VoidTovoid(),
    [_updateInputValues]: T$.VoidTovoid(),
    [_disableBrowserGestureHandling]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Incrementable))));
  dart.setGetterSignature(_engine.Incrementable, () => dart.global.Object.setPrototypeOf({[_gestureModeListener]: T$12.GestureModeTovoid()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Incrementable))));
  dart.setSetterSignature(_engine.Incrementable, () => dart.global.Object.setPrototypeOf({[_gestureModeListener]: T$12.GestureModeTovoid()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.Incrementable))));
  dart.setLibraryUri(_engine.Incrementable, I[220]);
  dart.setFieldSignature(_engine.Incrementable, () => dart.global.Object.setPrototypeOf({
    [_element$]: {type: T$12.DomHTMLInputElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_focusManager]: {type: T$12.AccessibilityFocusManager(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_currentSurrogateValue]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__Incrementable__gestureModeListener]: {type: T$12.GestureModeToNvoid(), isConst: false, isFinal: false},
    [__Incrementable__gestureModeListener_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pendingResync]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Incrementable))));
  _engine.LabelRepresentation = class LabelRepresentation extends core._Enum {
    [_enumToString]() {
      return "LabelRepresentation." + dart.str(this[_name$]);
    }
    createBehavior(owner) {
      if (owner == null) dart.nullFailed(I[346], 49, 65, "owner");
      return (() => {
        let t$36596 = null;
        switch (this) {
          case C[934] || CT.C934:
            {
              t$36596 = new _engine.AriaLabelRepresentation.__(owner);
              break;
            }
          case C[935] || CT.C935:
            {
              t$36596 = new _engine.DomTextRepresentation.__(owner);
              break;
            }
          case C[936] || CT.C936:
            {
              t$36596 = new _engine.SizedSpanRepresentation.__(owner);
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36596;
      })();
    }
  };
  (_engine.LabelRepresentation.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[346], 17, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[346], 17, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.LabelRepresentation).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.LabelRepresentation.prototype;
  dart.addRtiResources(_engine.LabelRepresentation, ["_engine|LabelRepresentation"]);
  dart.setMethodSignature(_engine.LabelRepresentation, () => dart.global.Object.setPrototypeOf({
    [_enumToString]: T$.VoidToString(),
    createBehavior: T$12.PrimaryRoleManagerToLabelRepresentationBehavior()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LabelRepresentation))));
  dart.setLibraryUri(_engine.LabelRepresentation, I[220]);
  dart.setStaticFieldSignature(_engine.LabelRepresentation, () => ['values', 'ariaLabel', 'domText', 'sizedSpan']);
  dart.defineLazy(_engine.LabelRepresentation, {
    /*_engine.LabelRepresentation.values*/get values() {
      return C[937] || CT.C937;
    },
    /*_engine.LabelRepresentation.ariaLabel*/get ariaLabel() {
      return C[934] || CT.C934;
    },
    /*_engine.LabelRepresentation.domText*/get domText() {
      return C[935] || CT.C935;
    },
    /*_engine.LabelRepresentation.sizedSpan*/get sizedSpan() {
      return C[936] || CT.C936;
    }
  }, false);
  var kind$0 = dart.privateName(_engine, "LabelRepresentationBehavior.kind");
  var owner$0 = dart.privateName(_engine, "LabelRepresentationBehavior.owner");
  _engine.LabelRepresentationBehavior = class LabelRepresentationBehavior extends core.Object {
    get kind() {
      return this[kind$0];
    }
    set kind(value) {
      super.kind = value;
    }
    get owner() {
      return this[owner$0];
    }
    set owner(value) {
      super.owner = value;
    }
    get semanticsObject() {
      return this.owner.semanticsObject;
    }
    focusAsRouteDefault() {
      _engine['DomElementExtension|set#tabIndex'](this.focusTarget, -1.0);
      _engine['DomElementExtension|focus'](this.focusTarget);
    }
  };
  (_engine.LabelRepresentationBehavior.new = function(kind, owner) {
    if (kind == null) dart.nullFailed(I[346], 60, 36, "kind");
    if (owner == null) dart.nullFailed(I[346], 60, 47, "owner");
    this[kind$0] = kind;
    this[owner$0] = owner;
    ;
  }).prototype = _engine.LabelRepresentationBehavior.prototype;
  dart.addRtiResources(_engine.LabelRepresentationBehavior, ["_engine|LabelRepresentationBehavior"]);
  dart.setMethodSignature(_engine.LabelRepresentationBehavior, () => dart.global.Object.setPrototypeOf({focusAsRouteDefault: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LabelRepresentationBehavior))));
  dart.setGetterSignature(_engine.LabelRepresentationBehavior, () => dart.global.Object.setPrototypeOf({semanticsObject: T$12.SemanticsObject()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.LabelRepresentationBehavior))));
  dart.setLibraryUri(_engine.LabelRepresentationBehavior, I[220]);
  dart.setFieldSignature(_engine.LabelRepresentationBehavior, () => dart.global.Object.setPrototypeOf({
    kind: {type: T$12.LabelRepresentation(), isConst: false, isFinal: true, libraryUri: I[220]},
    owner: {type: T$12.PrimaryRoleManager(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LabelRepresentationBehavior))));
  var _previousLabel = dart.privateName(_engine, "_previousLabel");
  _engine.AriaLabelRepresentation = class AriaLabelRepresentation extends _engine.LabelRepresentationBehavior {
    static ['_#_#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[346], 110, 48, "owner");
      return new _engine.AriaLabelRepresentation.__(owner);
    }
    update(label) {
      if (label == null) dart.nullFailed(I[346], 115, 22, "label");
      if (label == this[_previousLabel]) {
        return;
      }
      this.owner.setAttribute("aria-label", label);
    }
    cleanUp() {
      this.owner.removeAttribute("aria-label");
    }
    get focusTarget() {
      return this.owner.element;
    }
  };
  (_engine.AriaLabelRepresentation.__ = function(owner) {
    if (owner == null) dart.nullFailed(I[346], 110, 48, "owner");
    this[_previousLabel] = null;
    dart.global.Object.getPrototypeOf(_engine.AriaLabelRepresentation).new.call(this, _engine.LabelRepresentation.ariaLabel, owner);
    ;
  }).prototype = _engine.AriaLabelRepresentation.prototype;
  dart.addRtiResources(_engine.AriaLabelRepresentation, ["_engine|AriaLabelRepresentation"]);
  dart.setMethodSignature(_engine.AriaLabelRepresentation, () => dart.global.Object.setPrototypeOf({
    update: T$.StringTovoid(),
    cleanUp: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.AriaLabelRepresentation))));
  dart.setGetterSignature(_engine.AriaLabelRepresentation, () => dart.global.Object.setPrototypeOf({focusTarget: T$9.DomElement()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.AriaLabelRepresentation))));
  dart.setLibraryUri(_engine.AriaLabelRepresentation, I[220]);
  dart.setFieldSignature(_engine.AriaLabelRepresentation, () => dart.global.Object.setPrototypeOf({[_previousLabel]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AriaLabelRepresentation))));
  var _domText = dart.privateName(_engine, "_domText");
  _engine.DomTextRepresentation = class DomTextRepresentation extends _engine.LabelRepresentationBehavior {
    static ['_#_#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[346], 144, 46, "owner");
      return new _engine.DomTextRepresentation.__(owner);
    }
    update(label) {
      let t$36597;
      if (label == null) dart.nullFailed(I[346], 150, 22, "label");
      if (label == this[_previousLabel]) {
        return;
      }
      t$36597 = this[_domText];
      t$36597 == null ? null : _engine['DomNodeExtension|remove'](t$36597);
      let domText = _engine['DomDocumentExtension|createTextNode'](dart.jsInteropNullCheck(dart.global.document), label);
      this[_domText] = domText;
      T$9.DomNode()[_as](this.semanticsObject.element.appendChild(domText));
    }
    cleanUp() {
      let t$36597;
      t$36597 = this[_domText];
      t$36597 == null ? null : _engine['DomNodeExtension|remove'](t$36597);
    }
    get focusTarget() {
      return this.owner.element;
    }
  };
  (_engine.DomTextRepresentation.__ = function(owner) {
    if (owner == null) dart.nullFailed(I[346], 144, 46, "owner");
    this[_domText] = null;
    this[_previousLabel] = null;
    dart.global.Object.getPrototypeOf(_engine.DomTextRepresentation).new.call(this, _engine.LabelRepresentation.domText, owner);
    ;
  }).prototype = _engine.DomTextRepresentation.prototype;
  dart.addRtiResources(_engine.DomTextRepresentation, ["_engine|DomTextRepresentation"]);
  dart.setMethodSignature(_engine.DomTextRepresentation, () => dart.global.Object.setPrototypeOf({
    update: T$.StringTovoid(),
    cleanUp: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DomTextRepresentation))));
  dart.setGetterSignature(_engine.DomTextRepresentation, () => dart.global.Object.setPrototypeOf({focusTarget: T$9.DomElement()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.DomTextRepresentation))));
  dart.setLibraryUri(_engine.DomTextRepresentation, I[220]);
  dart.setFieldSignature(_engine.DomTextRepresentation, () => dart.global.Object.setPrototypeOf({
    [_domText]: {type: T$12.DomTextN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_previousLabel]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DomTextRepresentation))));
  var _previousSize = dart.privateName(_engine, "_previousSize");
  var _updateSize = dart.privateName(_engine, "_updateSize");
  _engine.SizedSpanRepresentation = class SizedSpanRepresentation extends _engine.LabelRepresentationBehavior {
    static ['_#_#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[346], 234, 48, "owner");
      return new _engine.SizedSpanRepresentation.__(owner);
    }
    update(label) {
      let t$36597;
      if (label == null) dart.nullFailed(I[346], 258, 22, "label");
      let size = (t$36597 = this.semanticsObject.rect, t$36597 == null ? null : t$36597.size);
      let labelChanged = label != this[_previousLabel];
      let sizeChanged = !dart.equals(size, this[_previousSize]);
      if (labelChanged) {
        _engine['DomNodeExtension|set#text'](this[_domText], label);
      }
      if (labelChanged || sizeChanged) {
        this[_updateSize](size);
      }
      this[_previousLabel] = label;
      this[_previousSize] = size;
    }
    [_updateSize](size) {
      if (size == null) {
        _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this[_domText], "style"), "");
        return;
      }
      if (_engine.SizedSpanRepresentation._resizeQueue == null) {
        _engine.SizedSpanRepresentation._resizeQueue = G$.JSArrayOfRecOf__$1().of([]);
        this.semanticsObject.owner.addOneTimePostUpdateCallback(C[938] || CT.C938);
      }
      dart.nullCheck(_engine.SizedSpanRepresentation._resizeQueue)[$add](dart.recordLiteral("2;representation,targetSize", 0, ["representation", "targetSize"], [this, size]));
    }
    cleanUp() {
      this[_domText].remove();
    }
    static _updateSizes() {
      let t$36597;
      let queue = _engine.SizedSpanRepresentation._resizeQueue;
      _engine.SizedSpanRepresentation._resizeQueue = null;
      if (!(queue != null && dart.test(queue[$isNotEmpty]))) dart.assertFailed("_updateSizes was called with an empty _resizeQueue. This should never happend. If it does, please file an issue at https://github.com/flutter/flutter/issues/new/choose", I[346], 337, 7, "queue != null && queue.isNotEmpty");
      if (queue == null || dart.test(queue[$isEmpty])) {
        return;
      }
      let measurements = G$.JSArrayOfRecOf__$2().of([]);
      for (let update of queue) {
        _engine['DomCSSStyleDeclarationExtension|set#display'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), update.representation[_domText], "style"), "inline");
      }
      for (let update of queue) {
        let domWidth = _engine['DomElementExtension|get#offsetWidth'](update.representation[_domText]);
        let domHeight = _engine['DomElementExtension|get#offsetHeight'](update.representation[_domText]);
        measurements[$add]((t$36597 = update.representation, dart.recordLiteral("3;domSize,representation,targetSize", 0, ["domSize", "representation", "targetSize"], [new ui.Size.new(domWidth, domHeight), t$36597, update.targetSize])));
      }
      for (let measurement of measurements) {
        let representation = measurement.representation;
        let domWidth = measurement.domSize.width;
        let domHeight = measurement.domSize.height;
        let targetSize = measurement.targetSize;
        _engine['DomCSSStyleDeclarationExtension|set#display'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), representation[_domText], "style"), "inline-block");
        if (dart.notNull(domWidth) < 1 && dart.notNull(domHeight) < 1) {
          _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), representation[_domText], "style"), "");
        } else {
          let scaleX = dart.notNull(targetSize.width) / dart.notNull(domWidth);
          let scaleY = dart.notNull(targetSize.height) / dart.notNull(domHeight);
          _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), representation[_domText], "style"), "scale(" + dart.strSafe(scaleX) + ", " + dart.strSafe(scaleY) + ")");
        }
      }
      if (!(_engine.SizedSpanRepresentation._resizeQueue == null)) dart.assertFailed("_resizeQueue must be empty after it is processed.", I[346], 406, 12, "_resizeQueue == null");
    }
    get focusTarget() {
      return this[_domText];
    }
  };
  (_engine.SizedSpanRepresentation.__ = function(owner) {
    let t$36597;
    if (owner == null) dart.nullFailed(I[346], 234, 48, "owner");
    this[_domText] = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "span");
    this[_previousLabel] = null;
    this[_previousSize] = null;
    dart.global.Object.getPrototypeOf(_engine.SizedSpanRepresentation).new.call(this, _engine.LabelRepresentation.sizedSpan, owner);
    t$36597 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this[_domText], "style");
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#display'](t$36597, "inline-block");
      _engine['DomCSSStyleDeclarationExtension|set#whiteSpace'](t$36597, "nowrap");
      _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$36597, "0 0 0");
      return t$36597;
    })();
    T$9.DomNode()[_as](this.semanticsObject.element.appendChild(this[_domText]));
  }).prototype = _engine.SizedSpanRepresentation.prototype;
  dart.addRtiResources(_engine.SizedSpanRepresentation, ["_engine|SizedSpanRepresentation"]);
  dart.setMethodSignature(_engine.SizedSpanRepresentation, () => dart.global.Object.setPrototypeOf({
    update: T$.StringTovoid(),
    [_updateSize]: T$12.SizeNTovoid(),
    cleanUp: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SizedSpanRepresentation))));
  dart.setStaticMethodSignature(_engine.SizedSpanRepresentation, () => ['_updateSizes']);
  dart.setGetterSignature(_engine.SizedSpanRepresentation, () => dart.global.Object.setPrototypeOf({focusTarget: T$9.DomElement()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SizedSpanRepresentation))));
  dart.setLibraryUri(_engine.SizedSpanRepresentation, I[220]);
  dart.setFieldSignature(_engine.SizedSpanRepresentation, () => dart.global.Object.setPrototypeOf({
    [_domText]: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_previousLabel]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_previousSize]: {type: T$12.SizeN(), isConst: false, isFinal: false, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SizedSpanRepresentation))));
  dart.setStaticFieldSignature(_engine.SizedSpanRepresentation, () => ['_resizeQueue']);
  dart.defineLazy(_engine.SizedSpanRepresentation, {
    /*_engine.SizedSpanRepresentation._resizeQueue*/get _resizeQueue() {
      return null;
    },
    set _resizeQueue(value) {}
  }, false);
  var preferredRepresentation$ = dart.privateName(_engine, "LabelAndValue.preferredRepresentation");
  var _representation = dart.privateName(_engine, "_representation");
  var _computeLabel = dart.privateName(_engine, "_computeLabel");
  var _cleanUpDom = dart.privateName(_engine, "_cleanUpDom");
  var _getEffectiveRepresentation = dart.privateName(_engine, "_getEffectiveRepresentation");
  _engine.LabelAndValue = class LabelAndValue extends _engine.RoleManager {
    get preferredRepresentation() {
      return this[preferredRepresentation$];
    }
    set preferredRepresentation(value) {
      if (value == null) dart.nullFailed(I[346], 442, 23, "preferredRepresentation");
      this[preferredRepresentation$] = value;
    }
    static ['_#new#tearOff'](semanticsObject, owner, opts) {
      if (semanticsObject == null) dart.nullFailed(I[346], 432, 33, "semanticsObject");
      if (owner == null) dart.nullFailed(I[346], 432, 69, "owner");
      let preferredRepresentation = opts && 'preferredRepresentation' in opts ? opts.preferredRepresentation : null;
      if (preferredRepresentation == null) dart.nullFailed(I[346], 432, 92, "preferredRepresentation");
      return new _engine.LabelAndValue.new(semanticsObject, owner, {preferredRepresentation: preferredRepresentation});
    }
    update() {
      let computedLabel = this[_computeLabel]();
      if (computedLabel == null) {
        this[_cleanUpDom]();
        return;
      }
      this[_getEffectiveRepresentation]().update(computedLabel);
    }
    [_getEffectiveRepresentation]() {
      let t$36597;
      let effectiveRepresentation = dart.test(this.semanticsObject.hasChildren) ? _engine.LabelRepresentation.ariaLabel : this.preferredRepresentation;
      let representation = this[_representation];
      if (representation == null || representation.kind != effectiveRepresentation) {
        t$36597 = representation;
        t$36597 == null ? null : t$36597.cleanUp();
        this[_representation] = representation = effectiveRepresentation.createBehavior(this.owner);
      }
      return representation;
    }
    [_computeLabel]() {
      let shouldDisplayValue = !dart.test(this.semanticsObject.isIncrementable) && dart.test(this.semanticsObject.hasValue);
      return _engine.computeDomSemanticsLabel({tooltip: dart.test(this.semanticsObject.hasTooltip) ? this.semanticsObject.tooltip : null, label: dart.test(this.semanticsObject.hasLabel) ? this.semanticsObject.label : null, hint: this.semanticsObject.hint, value: shouldDisplayValue ? this.semanticsObject.value : null});
    }
    [_cleanUpDom]() {
      let t$36597;
      t$36597 = this[_representation];
      t$36597 == null ? null : t$36597.cleanUp();
    }
    dispose() {
      super.dispose();
      this[_cleanUpDom]();
    }
    focusAsRouteDefault() {
      this[_getEffectiveRepresentation]().focusAsRouteDefault();
    }
  };
  (_engine.LabelAndValue.new = function(semanticsObject, owner, opts) {
    if (semanticsObject == null) dart.nullFailed(I[346], 432, 33, "semanticsObject");
    if (owner == null) dart.nullFailed(I[346], 432, 69, "owner");
    let preferredRepresentation = opts && 'preferredRepresentation' in opts ? opts.preferredRepresentation : null;
    if (preferredRepresentation == null) dart.nullFailed(I[346], 432, 92, "preferredRepresentation");
    this[_representation] = null;
    this[preferredRepresentation$] = preferredRepresentation;
    dart.global.Object.getPrototypeOf(_engine.LabelAndValue).new.call(this, _engine.Role.labelAndValue, semanticsObject, owner);
    ;
  }).prototype = _engine.LabelAndValue.prototype;
  dart.addRtiResources(_engine.LabelAndValue, ["_engine|LabelAndValue"]);
  dart.setMethodSignature(_engine.LabelAndValue, () => dart.global.Object.setPrototypeOf({
    update: T$.VoidTovoid(),
    [_getEffectiveRepresentation]: T$12.VoidToLabelRepresentationBehavior(),
    [_computeLabel]: T$8.VoidToStringN(),
    [_cleanUpDom]: T$.VoidTovoid(),
    focusAsRouteDefault: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LabelAndValue))));
  dart.setLibraryUri(_engine.LabelAndValue, I[220]);
  dart.setFieldSignature(_engine.LabelAndValue, () => dart.global.Object.setPrototypeOf({
    preferredRepresentation: {type: T$12.LabelRepresentation(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_representation]: {type: T$12.LabelRepresentationBehaviorN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LabelAndValue))));
  _engine.Link = class Link extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[347], 9, 24, "semanticsObject");
      return new _engine.Link.new(semanticsObject);
    }
    createElement() {
      let element = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "a");
      _engine['DomCSSStyleDeclarationExtension|set#display'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "block");
      return element;
    }
    focusAsRouteDefault() {
      let t$36597, t$36597$;
      t$36597$ = (t$36597 = this.focusable, t$36597 == null ? null : t$36597.focusAsRouteDefault());
      return t$36597$ == null ? false : t$36597$;
    }
  };
  (_engine.Link.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[347], 9, 24, "semanticsObject");
    dart.global.Object.getPrototypeOf(_engine.Link).withBasics.call(this, _engine.PrimaryRole.link, semanticsObject, {preferredLabelRepresentation: _engine.LabelRepresentation.domText});
    this.addTappable();
  }).prototype = _engine.Link.prototype;
  dart.addRtiResources(_engine.Link, ["_engine|Link"]);
  dart.setMethodSignature(_engine.Link, () => dart.global.Object.setPrototypeOf({focusAsRouteDefault: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Link))));
  dart.setLibraryUri(_engine.Link, I[220]);
  var _lastAnnouncement = dart.privateName(_engine, "_lastAnnouncement");
  var _accessibilityAnnouncements = dart.privateName(_engine, "_accessibilityAnnouncements");
  _engine.LiveRegion = class LiveRegion extends _engine.RoleManager {
    static ['_#new#tearOff'](semanticsObject, owner) {
      if (semanticsObject == null) dart.nullFailed(I[348], 18, 30, "semanticsObject");
      if (owner == null) dart.nullFailed(I[348], 18, 66, "owner");
      return new _engine.LiveRegion.new(semanticsObject, owner);
    }
    static debugOverrideAccessibilityAnnouncements(value) {
      _engine.LiveRegion._accessibilityAnnouncementsOverride = value;
    }
    get [_accessibilityAnnouncements]() {
      let t$36597;
      t$36597 = _engine.LiveRegion._accessibilityAnnouncementsOverride;
      return t$36597 == null ? _engine.EngineSemantics.instance.accessibilityAnnouncements : t$36597;
    }
    update() {
      if (!dart.test(this.semanticsObject.isLiveRegion)) {
        return;
      }
      if (this[_lastAnnouncement] != this.semanticsObject.label) {
        this[_lastAnnouncement] = this.semanticsObject.label;
        if (dart.test(this.semanticsObject.hasLabel)) {
          this[_accessibilityAnnouncements].announce(dart.nullCheck(this[_lastAnnouncement]), _engine.Assertiveness.polite);
        }
      }
    }
  };
  (_engine.LiveRegion.new = function(semanticsObject, owner) {
    if (semanticsObject == null) dart.nullFailed(I[348], 18, 30, "semanticsObject");
    if (owner == null) dart.nullFailed(I[348], 18, 66, "owner");
    this[_lastAnnouncement] = null;
    dart.global.Object.getPrototypeOf(_engine.LiveRegion).new.call(this, _engine.Role.liveRegion, semanticsObject, owner);
    ;
  }).prototype = _engine.LiveRegion.prototype;
  dart.addRtiResources(_engine.LiveRegion, ["_engine|LiveRegion"]);
  dart.setMethodSignature(_engine.LiveRegion, () => dart.global.Object.setPrototypeOf({update: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LiveRegion))));
  dart.setStaticMethodSignature(_engine.LiveRegion, () => ['debugOverrideAccessibilityAnnouncements']);
  dart.setGetterSignature(_engine.LiveRegion, () => dart.global.Object.setPrototypeOf({[_accessibilityAnnouncements]: T$12.AccessibilityAnnouncements()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.LiveRegion))));
  dart.setLibraryUri(_engine.LiveRegion, I[220]);
  dart.setFieldSignature(_engine.LiveRegion, () => dart.global.Object.setPrototypeOf({[_lastAnnouncement]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LiveRegion))));
  dart.setStaticFieldSignature(_engine.LiveRegion, () => ['_accessibilityAnnouncementsOverride']);
  dart.defineLazy(_engine.LiveRegion, {
    /*_engine.LiveRegion._accessibilityAnnouncementsOverride*/get _accessibilityAnnouncementsOverride() {
      return null;
    },
    set _accessibilityAnnouncementsOverride(value) {}
  }, false);
  _engine.PlatformViewRoleManager = class PlatformViewRoleManager extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[349], 22, 43, "semanticsObject");
      return new _engine.PlatformViewRoleManager.new(semanticsObject);
    }
    update() {
      super.update();
      if (dart.test(this.semanticsObject.isPlatformView)) {
        if (dart.test(this.semanticsObject.isPlatformViewIdDirty)) {
          this.setAttribute("aria-owns", _engine.getPlatformViewDomId(this.semanticsObject.platformViewId));
        }
      } else {
        this.removeAttribute("aria-owns");
      }
    }
    focusAsRouteDefault() {
      return false;
    }
  };
  (_engine.PlatformViewRoleManager.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[349], 22, 43, "semanticsObject");
    dart.global.Object.getPrototypeOf(_engine.PlatformViewRoleManager).withBasics.call(this, _engine.PrimaryRole.platformView, semanticsObject, {preferredLabelRepresentation: _engine.LabelRepresentation.ariaLabel});
    ;
  }).prototype = _engine.PlatformViewRoleManager.prototype;
  dart.addRtiResources(_engine.PlatformViewRoleManager, ["_engine|PlatformViewRoleManager"]);
  dart.setMethodSignature(_engine.PlatformViewRoleManager, () => dart.global.Object.setPrototypeOf({focusAsRouteDefault: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PlatformViewRoleManager))));
  dart.setLibraryUri(_engine.PlatformViewRoleManager, I[220]);
  var _scrollOverflowElement = dart.privateName(_engine, "_scrollOverflowElement");
  var _scrollListener = dart.privateName(_engine, "_scrollListener");
  var _effectiveNeutralScrollPosition = dart.privateName(_engine, "_effectiveNeutralScrollPosition");
  var _domScrollPosition = dart.privateName(_engine, "_domScrollPosition");
  var _neutralizeDomScrollPosition = dart.privateName(_engine, "_neutralizeDomScrollPosition");
  var _recomputeScrollPosition = dart.privateName(_engine, "_recomputeScrollPosition");
  var _gestureModeDidChange = dart.privateName(_engine, "_gestureModeDidChange");
  _engine.Scrollable = class Scrollable extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[350], 25, 30, "semanticsObject");
      return new _engine.Scrollable.new(semanticsObject);
    }
    [_recomputeScrollPosition]() {
      if (this[_domScrollPosition] != this[_effectiveNeutralScrollPosition]) {
        if (!dart.test(_engine.EngineSemantics.instance.shouldAcceptBrowserGesture("scroll"))) {
          return;
        }
        let doScrollForward = dart.notNull(this[_domScrollPosition]) > dart.notNull(this[_effectiveNeutralScrollPosition]);
        this[_neutralizeDomScrollPosition]();
        this.semanticsObject.recomputePositionAndSize();
        let semanticsId = this.semanticsObject.id;
        if (doScrollForward) {
          if (dart.test(this.semanticsObject.isVerticalScrollContainer)) {
            _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(semanticsId, ui.SemanticsAction.scrollUp, null);
          } else {
            if (!dart.test(this.semanticsObject.isHorizontalScrollContainer)) dart.assertFailed(null, I[350], 75, 18, "semanticsObject.isHorizontalScrollContainer");
            _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(semanticsId, ui.SemanticsAction.scrollLeft, null);
          }
        } else {
          if (dart.test(this.semanticsObject.isVerticalScrollContainer)) {
            _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(semanticsId, ui.SemanticsAction.scrollDown, null);
          } else {
            if (!dart.test(this.semanticsObject.isHorizontalScrollContainer)) dart.assertFailed(null, I[350], 84, 18, "semanticsObject.isHorizontalScrollContainer");
            _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(semanticsId, ui.SemanticsAction.scrollRight, null);
          }
        }
      }
    }
    initState() {
      let t$36597;
      _engine['DomCSSStyleDeclarationExtension|set#overflow'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.semanticsObject.element, "style"), "");
      t$36597 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this[_scrollOverflowElement], "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36597, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$36597, "0 0 0");
        _engine['DomCSSStyleDeclarationExtension|set#pointerEvents'](t$36597, "none");
        return t$36597;
      })();
      this.append(this[_scrollOverflowElement]);
    }
    update() {
      super.update();
      this.semanticsObject.owner.addOneTimePostUpdateCallback(dart.fn(() => {
        this[_neutralizeDomScrollPosition]();
        this.semanticsObject.recomputePositionAndSize();
      }, T$.VoidTovoid()));
      if (this[_scrollListener] == null) {
        _engine['DomCSSStyleDeclarationExtension|set#touchAction'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style"), "none");
        this[_gestureModeDidChange]();
        this[_gestureModeListener] = dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[350], 131, 31, "_");
          this[_gestureModeDidChange]();
        }, T$12.GestureModeTovoid());
        _engine.EngineSemantics.instance.addGestureModeListener(dart.nullCheck(this[_gestureModeListener]));
        this[_scrollListener] = _engine.createDomEventListener(dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[350], 136, 49, "_");
          this[_recomputeScrollPosition]();
        }, T$10.DomEventTovoid()));
        this.addEventListener("scroll", this[_scrollListener]);
      }
    }
    get [_domScrollPosition]() {
      if (dart.test(this.semanticsObject.isVerticalScrollContainer)) {
        return _engine['DomElementExtension|get#scrollTop'](this.element)[$toInt]();
      } else {
        if (!dart.test(this.semanticsObject.isHorizontalScrollContainer)) dart.assertFailed(null, I[350], 148, 14, "semanticsObject.isHorizontalScrollContainer");
        return _engine['DomElementExtension|get#scrollLeft'](this.element)[$toInt]();
      }
    }
    [_neutralizeDomScrollPosition]() {
      let t$36597, t$36597$, t$36597$0, t$36597$1;
      let rect = this.semanticsObject.rect;
      if (rect == null) {
        _engine.printWarning("Warning! the rect attribute of semanticsObject is null");
        return;
      }
      if (dart.test(this.semanticsObject.isVerticalScrollContainer)) {
        let verticalOffset = rect.height[$ceil]() + 10;
        t$36597 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this[_scrollOverflowElement], "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#transform'](t$36597, "translate(0px," + dart.strSafe(verticalOffset) + "px)");
          _engine['DomCSSStyleDeclarationExtension|set#width'](t$36597, dart.strSafe(rect.width[$round]()) + "px");
          _engine['DomCSSStyleDeclarationExtension|set#height'](t$36597, "10px");
          return t$36597;
        })();
        _engine['DomElementExtension|set#scrollTop'](this.element, (10)[$toDouble]());
        this[_effectiveNeutralScrollPosition] = _engine['DomElementExtension|get#scrollTop'](this.element)[$toInt]();
        t$36597$ = this.semanticsObject;
        (() => {
          t$36597$.verticalContainerAdjustment = this[_effectiveNeutralScrollPosition][$toDouble]();
          t$36597$.horizontalContainerAdjustment = 0.0;
          return t$36597$;
        })();
      } else {
        let horizontalOffset = rect.width[$ceil]() + 10;
        t$36597$0 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this[_scrollOverflowElement], "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#transform'](t$36597$0, "translate(" + dart.strSafe(horizontalOffset) + "px,0px)");
          _engine['DomCSSStyleDeclarationExtension|set#width'](t$36597$0, "10px");
          _engine['DomCSSStyleDeclarationExtension|set#height'](t$36597$0, dart.strSafe(rect.height[$round]()) + "px");
          return t$36597$0;
        })();
        _engine['DomElementExtension|set#scrollLeft'](this.element, (10)[$toDouble]());
        this[_effectiveNeutralScrollPosition] = _engine['DomElementExtension|get#scrollLeft'](this.element)[$toInt]();
        t$36597$1 = this.semanticsObject;
        (() => {
          t$36597$1.verticalContainerAdjustment = 0.0;
          t$36597$1.horizontalContainerAdjustment = this[_effectiveNeutralScrollPosition][$toDouble]();
          return t$36597$1;
        })();
      }
    }
    [_gestureModeDidChange]() {
      switch (_engine.EngineSemantics.instance.gestureMode) {
        case C[932] || CT.C932:
          {
            if (dart.test(this.semanticsObject.isVerticalScrollContainer)) {
              _engine['DomCSSStyleDeclarationExtension|set#overflowY'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style"), "scroll");
            } else {
              if (!dart.test(this.semanticsObject.isHorizontalScrollContainer)) dart.assertFailed(null, I[350], 219, 18, "semanticsObject.isHorizontalScrollContainer");
              _engine['DomCSSStyleDeclarationExtension|set#overflowX'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style"), "scroll");
            }
            break;
          }
        case C[933] || CT.C933:
          {
            if (dart.test(this.semanticsObject.isVerticalScrollContainer)) {
              _engine['DomCSSStyleDeclarationExtension|set#overflowY'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style"), "hidden");
            } else {
              if (!dart.test(this.semanticsObject.isHorizontalScrollContainer)) dart.assertFailed(null, I[350], 229, 18, "semanticsObject.isHorizontalScrollContainer");
              _engine['DomCSSStyleDeclarationExtension|set#overflowX'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style"), "hidden");
            }
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
    dispose() {
      super.dispose();
      let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style");
      if (!(this[_gestureModeListener] != null)) dart.assertFailed(null, I[350], 239, 12, "_gestureModeListener != null");
      _engine['DomCSSStyleDeclarationExtension|removeProperty'](style, "overflowY");
      _engine['DomCSSStyleDeclarationExtension|removeProperty'](style, "overflowX");
      _engine['DomCSSStyleDeclarationExtension|removeProperty'](style, "touch-action");
      if (this[_scrollListener] != null) {
        this.removeEventListener("scroll", this[_scrollListener]);
        this[_scrollListener] = null;
      }
      if (this[_gestureModeListener] != null) {
        _engine.EngineSemantics.instance.removeGestureModeListener(dart.nullCheck(this[_gestureModeListener]));
        this[_gestureModeListener] = null;
      }
    }
    focusAsRouteDefault() {
      let t$36597, t$36597$;
      t$36597$ = (t$36597 = this.focusable, t$36597 == null ? null : t$36597.focusAsRouteDefault());
      return t$36597$ == null ? false : t$36597$;
    }
  };
  (_engine.Scrollable.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[350], 25, 30, "semanticsObject");
    this[_gestureModeListener] = null;
    this[_scrollOverflowElement] = _engine.createDomElement("flt-semantics-scroll-overflow");
    this[_scrollListener] = null;
    this[_effectiveNeutralScrollPosition] = 0;
    dart.global.Object.getPrototypeOf(_engine.Scrollable).withBasics.call(this, _engine.PrimaryRole.scrollable, semanticsObject, {preferredLabelRepresentation: _engine.LabelRepresentation.ariaLabel});
    ;
  }).prototype = _engine.Scrollable.prototype;
  dart.addRtiResources(_engine.Scrollable, ["_engine|Scrollable"]);
  dart.setMethodSignature(_engine.Scrollable, () => dart.global.Object.setPrototypeOf({
    [_recomputeScrollPosition]: T$.VoidTovoid(),
    [_neutralizeDomScrollPosition]: T$.VoidTovoid(),
    [_gestureModeDidChange]: T$.VoidTovoid(),
    focusAsRouteDefault: T$.VoidTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Scrollable))));
  dart.setGetterSignature(_engine.Scrollable, () => dart.global.Object.setPrototypeOf({[_domScrollPosition]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Scrollable))));
  dart.setLibraryUri(_engine.Scrollable, I[220]);
  dart.setFieldSignature(_engine.Scrollable, () => dart.global.Object.setPrototypeOf({
    [_gestureModeListener]: {type: T$12.GestureModeToNvoid(), isConst: false, isFinal: false},
    [_scrollOverflowElement]: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_scrollListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_effectiveNeutralScrollPosition]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Scrollable))));
  const _index$2 = EngineAccessibilityFeatures__index;
  _engine.EngineAccessibilityFeatures = class EngineAccessibilityFeatures extends core.Object {
    get [_index$1]() {
      return this[_index$2];
    }
    set [_index$1](value) {
      super[_index$1] = value;
    }
    static ['_#new#tearOff'](_index) {
      if (_index == null) dart.nullFailed(I[340], 11, 42, "_index");
      return new _engine.EngineAccessibilityFeatures.new(_index);
    }
    get accessibleNavigation() {
      return (1 & dart.notNull(this[_index$1])) !== 0;
    }
    get invertColors() {
      return (2 & dart.notNull(this[_index$1])) !== 0;
    }
    get disableAnimations() {
      return (4 & dart.notNull(this[_index$1])) !== 0;
    }
    get boldText() {
      return (8 & dart.notNull(this[_index$1])) !== 0;
    }
    get reduceMotion() {
      return (16 & dart.notNull(this[_index$1])) !== 0;
    }
    get highContrast() {
      return (32 & dart.notNull(this[_index$1])) !== 0;
    }
    get onOffSwitchLabels() {
      return (64 & dart.notNull(this[_index$1])) !== 0;
    }
    toString() {
      let features = G.JSArrayOfString().of([]);
      if (dart.test(this.accessibleNavigation)) {
        features[$add]("accessibleNavigation");
      }
      if (dart.test(this.invertColors)) {
        features[$add]("invertColors");
      }
      if (dart.test(this.disableAnimations)) {
        features[$add]("disableAnimations");
      }
      if (dart.test(this.boldText)) {
        features[$add]("boldText");
      }
      if (dart.test(this.reduceMotion)) {
        features[$add]("reduceMotion");
      }
      if (dart.test(this.highContrast)) {
        features[$add]("highContrast");
      }
      if (dart.test(this.onOffSwitchLabels)) {
        features[$add]("onOffSwitchLabels");
      }
      return "AccessibilityFeatures" + dart.str(features);
    }
    _equals(other) {
      if (other == null) return false;
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$11.EngineAccessibilityFeatures()[_is](other) && other[_index$1] == this[_index$1];
    }
    get hashCode() {
      return dart.hashCode(this[_index$1]);
    }
    copyWith(opts) {
      let t$36597, t$36597$, t$36597$0, t$36597$1, t$36597$2, t$36597$3, t$36597$4;
      let accessibleNavigation = opts && 'accessibleNavigation' in opts ? opts.accessibleNavigation : null;
      let invertColors = opts && 'invertColors' in opts ? opts.invertColors : null;
      let disableAnimations = opts && 'disableAnimations' in opts ? opts.disableAnimations : null;
      let boldText = opts && 'boldText' in opts ? opts.boldText : null;
      let reduceMotion = opts && 'reduceMotion' in opts ? opts.reduceMotion : null;
      let highContrast = opts && 'highContrast' in opts ? opts.highContrast : null;
      let onOffSwitchLabels = opts && 'onOffSwitchLabels' in opts ? opts.onOffSwitchLabels : null;
      let builder = new _engine.EngineAccessibilityFeaturesBuilder.new(0);
      builder.accessibleNavigation = (t$36597 = accessibleNavigation, t$36597 == null ? this.accessibleNavigation : t$36597);
      builder.invertColors = (t$36597$ = invertColors, t$36597$ == null ? this.invertColors : t$36597$);
      builder.disableAnimations = (t$36597$0 = disableAnimations, t$36597$0 == null ? this.disableAnimations : t$36597$0);
      builder.boldText = (t$36597$1 = boldText, t$36597$1 == null ? this.boldText : t$36597$1);
      builder.reduceMotion = (t$36597$2 = reduceMotion, t$36597$2 == null ? this.reduceMotion : t$36597$2);
      builder.highContrast = (t$36597$3 = highContrast, t$36597$3 == null ? this.highContrast : t$36597$3);
      builder.onOffSwitchLabels = (t$36597$4 = onOffSwitchLabels, t$36597$4 == null ? this.onOffSwitchLabels : t$36597$4);
      return builder.build();
    }
  };
  (_engine.EngineAccessibilityFeatures.new = function(_index) {
    if (_index == null) dart.nullFailed(I[340], 11, 42, "_index");
    this[_index$2] = _index;
    ;
  }).prototype = _engine.EngineAccessibilityFeatures.prototype;
  dart.addRtiResources(_engine.EngineAccessibilityFeatures, ["_engine|EngineAccessibilityFeatures", "ui|AccessibilityFeatures"]);
  dart.setMethodSignature(_engine.EngineAccessibilityFeatures, () => dart.global.Object.setPrototypeOf({copyWith: T$12.__ToEngineAccessibilityFeatures()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineAccessibilityFeatures))));
  dart.setGetterSignature(_engine.EngineAccessibilityFeatures, () => dart.global.Object.setPrototypeOf({
    accessibleNavigation: T$.bool(),
    invertColors: T$.bool(),
    disableAnimations: T$.bool(),
    boldText: T$.bool(),
    reduceMotion: T$.bool(),
    highContrast: T$.bool(),
    onOffSwitchLabels: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineAccessibilityFeatures))));
  dart.setLibraryUri(_engine.EngineAccessibilityFeatures, I[220]);
  dart.setFieldSignature(_engine.EngineAccessibilityFeatures, () => dart.global.Object.setPrototypeOf({[_index$1]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineAccessibilityFeatures))));
  dart.setStaticFieldSignature(_engine.EngineAccessibilityFeatures, () => ['_kAccessibleNavigation', '_kInvertColorsIndex', '_kDisableAnimationsIndex', '_kBoldTextIndex', '_kReduceMotionIndex', '_kHighContrastIndex', '_kOnOffSwitchLabelsIndex']);
  dart.defineExtensionMethods(_engine.EngineAccessibilityFeatures, ['toString', '_equals']);
  dart.defineExtensionAccessors(_engine.EngineAccessibilityFeatures, ['hashCode']);
  dart.defineLazy(_engine.EngineAccessibilityFeatures, {
    /*_engine.EngineAccessibilityFeatures._kAccessibleNavigation*/get _kAccessibleNavigation() {
      return 1;
    },
    /*_engine.EngineAccessibilityFeatures._kInvertColorsIndex*/get _kInvertColorsIndex() {
      return 2;
    },
    /*_engine.EngineAccessibilityFeatures._kDisableAnimationsIndex*/get _kDisableAnimationsIndex() {
      return 4;
    },
    /*_engine.EngineAccessibilityFeatures._kBoldTextIndex*/get _kBoldTextIndex() {
      return 8;
    },
    /*_engine.EngineAccessibilityFeatures._kReduceMotionIndex*/get _kReduceMotionIndex() {
      return 16;
    },
    /*_engine.EngineAccessibilityFeatures._kHighContrastIndex*/get _kHighContrastIndex() {
      return 32;
    },
    /*_engine.EngineAccessibilityFeatures._kOnOffSwitchLabelsIndex*/get _kOnOffSwitchLabelsIndex() {
      return 64;
    }
  }, false);
  _engine.EngineAccessibilityFeaturesBuilder = class EngineAccessibilityFeaturesBuilder extends core.Object {
    static ['_#new#tearOff'](_index) {
      if (_index == null) dart.nullFailed(I[340], 101, 43, "_index");
      return new _engine.EngineAccessibilityFeaturesBuilder.new(_index);
    }
    get accessibleNavigation() {
      return (1 & dart.notNull(this[_index$1])) !== 0;
    }
    get invertColors() {
      return (2 & dart.notNull(this[_index$1])) !== 0;
    }
    get disableAnimations() {
      return (4 & dart.notNull(this[_index$1])) !== 0;
    }
    get boldText() {
      return (8 & dart.notNull(this[_index$1])) !== 0;
    }
    get reduceMotion() {
      return (16 & dart.notNull(this[_index$1])) !== 0;
    }
    get highContrast() {
      return (32 & dart.notNull(this[_index$1])) !== 0;
    }
    get onOffSwitchLabels() {
      return (64 & dart.notNull(this[_index$1])) !== 0;
    }
    set accessibleNavigation(value) {
      if (value == null) dart.nullFailed(I[340], 113, 33, "value");
      this[_index$1] = dart.test(value) ? (dart.notNull(this[_index$1]) | 1) >>> 0 : (dart.notNull(this[_index$1]) & ~1 >>> 0) >>> 0;
    }
    set invertColors(value) {
      if (value == null) dart.nullFailed(I[340], 118, 25, "value");
      this[_index$1] = dart.test(value) ? (dart.notNull(this[_index$1]) | 2) >>> 0 : (dart.notNull(this[_index$1]) & ~2 >>> 0) >>> 0;
    }
    set disableAnimations(value) {
      if (value == null) dart.nullFailed(I[340], 123, 30, "value");
      this[_index$1] = dart.test(value) ? (dart.notNull(this[_index$1]) | 4) >>> 0 : (dart.notNull(this[_index$1]) & ~4 >>> 0) >>> 0;
    }
    set boldText(value) {
      if (value == null) dart.nullFailed(I[340], 128, 21, "value");
      this[_index$1] = dart.test(value) ? (dart.notNull(this[_index$1]) | 8) >>> 0 : (dart.notNull(this[_index$1]) & ~8 >>> 0) >>> 0;
    }
    set reduceMotion(value) {
      if (value == null) dart.nullFailed(I[340], 133, 25, "value");
      this[_index$1] = dart.test(value) ? (dart.notNull(this[_index$1]) | 16) >>> 0 : (dart.notNull(this[_index$1]) & ~16 >>> 0) >>> 0;
    }
    set highContrast(value) {
      if (value == null) dart.nullFailed(I[340], 138, 25, "value");
      this[_index$1] = dart.test(value) ? (dart.notNull(this[_index$1]) | 32) >>> 0 : (dart.notNull(this[_index$1]) & ~32 >>> 0) >>> 0;
    }
    set onOffSwitchLabels(value) {
      if (value == null) dart.nullFailed(I[340], 143, 30, "value");
      this[_index$1] = dart.test(value) ? (dart.notNull(this[_index$1]) | 64) >>> 0 : (dart.notNull(this[_index$1]) & ~64 >>> 0) >>> 0;
    }
    build() {
      return new _engine.EngineAccessibilityFeatures.new(this[_index$1]);
    }
  };
  (_engine.EngineAccessibilityFeaturesBuilder.new = function(_index) {
    if (_index == null) dart.nullFailed(I[340], 101, 43, "_index");
    this[_index$1] = 0;
    this[_index$1] = _index;
    ;
  }).prototype = _engine.EngineAccessibilityFeaturesBuilder.prototype;
  dart.addRtiResources(_engine.EngineAccessibilityFeaturesBuilder, ["_engine|EngineAccessibilityFeaturesBuilder"]);
  dart.setMethodSignature(_engine.EngineAccessibilityFeaturesBuilder, () => dart.global.Object.setPrototypeOf({build: T$11.VoidToEngineAccessibilityFeatures()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineAccessibilityFeaturesBuilder))));
  dart.setGetterSignature(_engine.EngineAccessibilityFeaturesBuilder, () => dart.global.Object.setPrototypeOf({
    accessibleNavigation: T$.bool(),
    invertColors: T$.bool(),
    disableAnimations: T$.bool(),
    boldText: T$.bool(),
    reduceMotion: T$.bool(),
    highContrast: T$.bool(),
    onOffSwitchLabels: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineAccessibilityFeaturesBuilder))));
  dart.setSetterSignature(_engine.EngineAccessibilityFeaturesBuilder, () => dart.global.Object.setPrototypeOf({
    accessibleNavigation: T$.bool(),
    invertColors: T$.bool(),
    disableAnimations: T$.bool(),
    boldText: T$.bool(),
    reduceMotion: T$.bool(),
    highContrast: T$.bool(),
    onOffSwitchLabels: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.EngineAccessibilityFeaturesBuilder))));
  dart.setLibraryUri(_engine.EngineAccessibilityFeaturesBuilder, I[220]);
  dart.setFieldSignature(_engine.EngineAccessibilityFeaturesBuilder, () => dart.global.Object.setPrototypeOf({[_index$1]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineAccessibilityFeaturesBuilder))));
  var _nodeUpdates$ = dart.privateName(_engine, "_nodeUpdates");
  _engine.SemanticsUpdate = class SemanticsUpdate extends core.Object {
    static ['_#new#tearOff'](opts) {
      let nodeUpdates = opts && 'nodeUpdates' in opts ? opts.nodeUpdates : null;
      return new _engine.SemanticsUpdate.new({nodeUpdates: nodeUpdates});
    }
    dispose() {
    }
  };
  (_engine.SemanticsUpdate.new = function(opts) {
    let nodeUpdates = opts && 'nodeUpdates' in opts ? opts.nodeUpdates : null;
    this[_nodeUpdates$] = nodeUpdates;
    ;
  }).prototype = _engine.SemanticsUpdate.prototype;
  dart.addRtiResources(_engine.SemanticsUpdate, ["_engine|SemanticsUpdate", "ui|SemanticsUpdate"]);
  dart.setMethodSignature(_engine.SemanticsUpdate, () => dart.global.Object.setPrototypeOf({dispose: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SemanticsUpdate))));
  dart.setLibraryUri(_engine.SemanticsUpdate, I[220]);
  dart.setFieldSignature(_engine.SemanticsUpdate, () => dart.global.Object.setPrototypeOf({[_nodeUpdates$]: {type: T$12.ListNOfSemanticsNodeUpdate(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SemanticsUpdate))));
  var id$3 = dart.privateName(_engine, "SemanticsNodeUpdate.id");
  var flags$ = dart.privateName(_engine, "SemanticsNodeUpdate.flags");
  var actions$ = dart.privateName(_engine, "SemanticsNodeUpdate.actions");
  var maxValueLength$ = dart.privateName(_engine, "SemanticsNodeUpdate.maxValueLength");
  var currentValueLength$ = dart.privateName(_engine, "SemanticsNodeUpdate.currentValueLength");
  var textSelectionBase$ = dart.privateName(_engine, "SemanticsNodeUpdate.textSelectionBase");
  var textSelectionExtent$ = dart.privateName(_engine, "SemanticsNodeUpdate.textSelectionExtent");
  var platformViewId$0 = dart.privateName(_engine, "SemanticsNodeUpdate.platformViewId");
  var scrollChildren$ = dart.privateName(_engine, "SemanticsNodeUpdate.scrollChildren");
  var scrollIndex$ = dart.privateName(_engine, "SemanticsNodeUpdate.scrollIndex");
  var scrollPosition$ = dart.privateName(_engine, "SemanticsNodeUpdate.scrollPosition");
  var scrollExtentMax$ = dart.privateName(_engine, "SemanticsNodeUpdate.scrollExtentMax");
  var scrollExtentMin$ = dart.privateName(_engine, "SemanticsNodeUpdate.scrollExtentMin");
  var rect$6 = dart.privateName(_engine, "SemanticsNodeUpdate.rect");
  var identifier$ = dart.privateName(_engine, "SemanticsNodeUpdate.identifier");
  var label$ = dart.privateName(_engine, "SemanticsNodeUpdate.label");
  var labelAttributes$ = dart.privateName(_engine, "SemanticsNodeUpdate.labelAttributes");
  var hint$ = dart.privateName(_engine, "SemanticsNodeUpdate.hint");
  var hintAttributes$ = dart.privateName(_engine, "SemanticsNodeUpdate.hintAttributes");
  var value$9 = dart.privateName(_engine, "SemanticsNodeUpdate.value");
  var valueAttributes$ = dart.privateName(_engine, "SemanticsNodeUpdate.valueAttributes");
  var increasedValue$ = dart.privateName(_engine, "SemanticsNodeUpdate.increasedValue");
  var increasedValueAttributes$ = dart.privateName(_engine, "SemanticsNodeUpdate.increasedValueAttributes");
  var decreasedValue$ = dart.privateName(_engine, "SemanticsNodeUpdate.decreasedValue");
  var decreasedValueAttributes$ = dart.privateName(_engine, "SemanticsNodeUpdate.decreasedValueAttributes");
  var tooltip$ = dart.privateName(_engine, "SemanticsNodeUpdate.tooltip");
  var textDirection$ = dart.privateName(_engine, "SemanticsNodeUpdate.textDirection");
  var transform$2 = dart.privateName(_engine, "SemanticsNodeUpdate.transform");
  var childrenInTraversalOrder$ = dart.privateName(_engine, "SemanticsNodeUpdate.childrenInTraversalOrder");
  var childrenInHitTestOrder$ = dart.privateName(_engine, "SemanticsNodeUpdate.childrenInHitTestOrder");
  var additionalActions$ = dart.privateName(_engine, "SemanticsNodeUpdate.additionalActions");
  var elevation$0 = dart.privateName(_engine, "SemanticsNodeUpdate.elevation");
  var thickness$ = dart.privateName(_engine, "SemanticsNodeUpdate.thickness");
  var headingLevel$ = dart.privateName(_engine, "SemanticsNodeUpdate.headingLevel");
  _engine.SemanticsNodeUpdate = class SemanticsNodeUpdate extends core.Object {
    get id() {
      return this[id$3];
    }
    set id(value) {
      super.id = value;
    }
    get flags() {
      return this[flags$];
    }
    set flags(value) {
      super.flags = value;
    }
    get actions() {
      return this[actions$];
    }
    set actions(value) {
      super.actions = value;
    }
    get maxValueLength() {
      return this[maxValueLength$];
    }
    set maxValueLength(value) {
      super.maxValueLength = value;
    }
    get currentValueLength() {
      return this[currentValueLength$];
    }
    set currentValueLength(value) {
      super.currentValueLength = value;
    }
    get textSelectionBase() {
      return this[textSelectionBase$];
    }
    set textSelectionBase(value) {
      super.textSelectionBase = value;
    }
    get textSelectionExtent() {
      return this[textSelectionExtent$];
    }
    set textSelectionExtent(value) {
      super.textSelectionExtent = value;
    }
    get platformViewId() {
      return this[platformViewId$0];
    }
    set platformViewId(value) {
      super.platformViewId = value;
    }
    get scrollChildren() {
      return this[scrollChildren$];
    }
    set scrollChildren(value) {
      super.scrollChildren = value;
    }
    get scrollIndex() {
      return this[scrollIndex$];
    }
    set scrollIndex(value) {
      super.scrollIndex = value;
    }
    get scrollPosition() {
      return this[scrollPosition$];
    }
    set scrollPosition(value) {
      super.scrollPosition = value;
    }
    get scrollExtentMax() {
      return this[scrollExtentMax$];
    }
    set scrollExtentMax(value) {
      super.scrollExtentMax = value;
    }
    get scrollExtentMin() {
      return this[scrollExtentMin$];
    }
    set scrollExtentMin(value) {
      super.scrollExtentMin = value;
    }
    get rect() {
      return this[rect$6];
    }
    set rect(value) {
      super.rect = value;
    }
    get identifier() {
      return this[identifier$];
    }
    set identifier(value) {
      super.identifier = value;
    }
    get label() {
      return this[label$];
    }
    set label(value) {
      super.label = value;
    }
    get labelAttributes() {
      return this[labelAttributes$];
    }
    set labelAttributes(value) {
      super.labelAttributes = value;
    }
    get hint() {
      return this[hint$];
    }
    set hint(value) {
      super.hint = value;
    }
    get hintAttributes() {
      return this[hintAttributes$];
    }
    set hintAttributes(value) {
      super.hintAttributes = value;
    }
    get value() {
      return this[value$9];
    }
    set value(value) {
      super.value = value;
    }
    get valueAttributes() {
      return this[valueAttributes$];
    }
    set valueAttributes(value) {
      super.valueAttributes = value;
    }
    get increasedValue() {
      return this[increasedValue$];
    }
    set increasedValue(value) {
      super.increasedValue = value;
    }
    get increasedValueAttributes() {
      return this[increasedValueAttributes$];
    }
    set increasedValueAttributes(value) {
      super.increasedValueAttributes = value;
    }
    get decreasedValue() {
      return this[decreasedValue$];
    }
    set decreasedValue(value) {
      super.decreasedValue = value;
    }
    get decreasedValueAttributes() {
      return this[decreasedValueAttributes$];
    }
    set decreasedValueAttributes(value) {
      super.decreasedValueAttributes = value;
    }
    get tooltip() {
      return this[tooltip$];
    }
    set tooltip(value) {
      super.tooltip = value;
    }
    get textDirection() {
      return this[textDirection$];
    }
    set textDirection(value) {
      super.textDirection = value;
    }
    get transform() {
      return this[transform$2];
    }
    set transform(value) {
      super.transform = value;
    }
    get childrenInTraversalOrder() {
      return this[childrenInTraversalOrder$];
    }
    set childrenInTraversalOrder(value) {
      super.childrenInTraversalOrder = value;
    }
    get childrenInHitTestOrder() {
      return this[childrenInHitTestOrder$];
    }
    set childrenInHitTestOrder(value) {
      super.childrenInHitTestOrder = value;
    }
    get additionalActions() {
      return this[additionalActions$];
    }
    set additionalActions(value) {
      super.additionalActions = value;
    }
    get elevation() {
      return this[elevation$0];
    }
    set elevation(value) {
      super.elevation = value;
    }
    get thickness() {
      return this[thickness$];
    }
    set thickness(value) {
      super.thickness = value;
    }
    get headingLevel() {
      return this[headingLevel$];
    }
    set headingLevel(value) {
      super.headingLevel = value;
    }
    static ['_#new#tearOff'](opts) {
      let id = opts && 'id' in opts ? opts.id : null;
      if (id == null) dart.nullFailed(I[340], 176, 19, "id");
      let flags = opts && 'flags' in opts ? opts.flags : null;
      if (flags == null) dart.nullFailed(I[340], 177, 19, "flags");
      let actions = opts && 'actions' in opts ? opts.actions : null;
      if (actions == null) dart.nullFailed(I[340], 178, 19, "actions");
      let maxValueLength = opts && 'maxValueLength' in opts ? opts.maxValueLength : null;
      if (maxValueLength == null) dart.nullFailed(I[340], 179, 19, "maxValueLength");
      let currentValueLength = opts && 'currentValueLength' in opts ? opts.currentValueLength : null;
      if (currentValueLength == null) dart.nullFailed(I[340], 180, 19, "currentValueLength");
      let textSelectionBase = opts && 'textSelectionBase' in opts ? opts.textSelectionBase : null;
      if (textSelectionBase == null) dart.nullFailed(I[340], 181, 19, "textSelectionBase");
      let textSelectionExtent = opts && 'textSelectionExtent' in opts ? opts.textSelectionExtent : null;
      if (textSelectionExtent == null) dart.nullFailed(I[340], 182, 19, "textSelectionExtent");
      let platformViewId = opts && 'platformViewId' in opts ? opts.platformViewId : null;
      if (platformViewId == null) dart.nullFailed(I[340], 183, 19, "platformViewId");
      let scrollChildren = opts && 'scrollChildren' in opts ? opts.scrollChildren : null;
      if (scrollChildren == null) dart.nullFailed(I[340], 184, 19, "scrollChildren");
      let scrollIndex = opts && 'scrollIndex' in opts ? opts.scrollIndex : null;
      if (scrollIndex == null) dart.nullFailed(I[340], 185, 19, "scrollIndex");
      let scrollPosition = opts && 'scrollPosition' in opts ? opts.scrollPosition : null;
      if (scrollPosition == null) dart.nullFailed(I[340], 186, 19, "scrollPosition");
      let scrollExtentMax = opts && 'scrollExtentMax' in opts ? opts.scrollExtentMax : null;
      if (scrollExtentMax == null) dart.nullFailed(I[340], 187, 19, "scrollExtentMax");
      let scrollExtentMin = opts && 'scrollExtentMin' in opts ? opts.scrollExtentMin : null;
      if (scrollExtentMin == null) dart.nullFailed(I[340], 188, 19, "scrollExtentMin");
      let rect = opts && 'rect' in opts ? opts.rect : null;
      if (rect == null) dart.nullFailed(I[340], 189, 19, "rect");
      let identifier = opts && 'identifier' in opts ? opts.identifier : null;
      if (identifier == null) dart.nullFailed(I[340], 190, 19, "identifier");
      let label = opts && 'label' in opts ? opts.label : null;
      if (label == null) dart.nullFailed(I[340], 191, 19, "label");
      let labelAttributes = opts && 'labelAttributes' in opts ? opts.labelAttributes : null;
      if (labelAttributes == null) dart.nullFailed(I[340], 192, 19, "labelAttributes");
      let hint = opts && 'hint' in opts ? opts.hint : null;
      if (hint == null) dart.nullFailed(I[340], 193, 19, "hint");
      let hintAttributes = opts && 'hintAttributes' in opts ? opts.hintAttributes : null;
      if (hintAttributes == null) dart.nullFailed(I[340], 194, 19, "hintAttributes");
      let value = opts && 'value' in opts ? opts.value : null;
      if (value == null) dart.nullFailed(I[340], 195, 19, "value");
      let valueAttributes = opts && 'valueAttributes' in opts ? opts.valueAttributes : null;
      if (valueAttributes == null) dart.nullFailed(I[340], 196, 19, "valueAttributes");
      let increasedValue = opts && 'increasedValue' in opts ? opts.increasedValue : null;
      if (increasedValue == null) dart.nullFailed(I[340], 197, 19, "increasedValue");
      let increasedValueAttributes = opts && 'increasedValueAttributes' in opts ? opts.increasedValueAttributes : null;
      if (increasedValueAttributes == null) dart.nullFailed(I[340], 198, 19, "increasedValueAttributes");
      let decreasedValue = opts && 'decreasedValue' in opts ? opts.decreasedValue : null;
      if (decreasedValue == null) dart.nullFailed(I[340], 199, 19, "decreasedValue");
      let decreasedValueAttributes = opts && 'decreasedValueAttributes' in opts ? opts.decreasedValueAttributes : null;
      if (decreasedValueAttributes == null) dart.nullFailed(I[340], 200, 19, "decreasedValueAttributes");
      let tooltip = opts && 'tooltip' in opts ? opts.tooltip : null;
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      let transform = opts && 'transform' in opts ? opts.transform : null;
      if (transform == null) dart.nullFailed(I[340], 203, 19, "transform");
      let elevation = opts && 'elevation' in opts ? opts.elevation : null;
      if (elevation == null) dart.nullFailed(I[340], 204, 19, "elevation");
      let thickness = opts && 'thickness' in opts ? opts.thickness : null;
      if (thickness == null) dart.nullFailed(I[340], 205, 19, "thickness");
      let childrenInTraversalOrder = opts && 'childrenInTraversalOrder' in opts ? opts.childrenInTraversalOrder : null;
      if (childrenInTraversalOrder == null) dart.nullFailed(I[340], 206, 19, "childrenInTraversalOrder");
      let childrenInHitTestOrder = opts && 'childrenInHitTestOrder' in opts ? opts.childrenInHitTestOrder : null;
      if (childrenInHitTestOrder == null) dart.nullFailed(I[340], 207, 19, "childrenInHitTestOrder");
      let additionalActions = opts && 'additionalActions' in opts ? opts.additionalActions : null;
      if (additionalActions == null) dart.nullFailed(I[340], 208, 19, "additionalActions");
      let headingLevel = opts && 'headingLevel' in opts ? opts.headingLevel : null;
      if (headingLevel == null) dart.nullFailed(I[340], 209, 19, "headingLevel");
      return new _engine.SemanticsNodeUpdate.new({id: id, flags: flags, actions: actions, maxValueLength: maxValueLength, currentValueLength: currentValueLength, textSelectionBase: textSelectionBase, textSelectionExtent: textSelectionExtent, platformViewId: platformViewId, scrollChildren: scrollChildren, scrollIndex: scrollIndex, scrollPosition: scrollPosition, scrollExtentMax: scrollExtentMax, scrollExtentMin: scrollExtentMin, rect: rect, identifier: identifier, label: label, labelAttributes: labelAttributes, hint: hint, hintAttributes: hintAttributes, value: value, valueAttributes: valueAttributes, increasedValue: increasedValue, increasedValueAttributes: increasedValueAttributes, decreasedValue: decreasedValue, decreasedValueAttributes: decreasedValueAttributes, tooltip: tooltip, textDirection: textDirection, transform: transform, elevation: elevation, thickness: thickness, childrenInTraversalOrder: childrenInTraversalOrder, childrenInHitTestOrder: childrenInHitTestOrder, additionalActions: additionalActions, headingLevel: headingLevel});
    }
  };
  (_engine.SemanticsNodeUpdate.new = function(opts) {
    let id = opts && 'id' in opts ? opts.id : null;
    if (id == null) dart.nullFailed(I[340], 176, 19, "id");
    let flags = opts && 'flags' in opts ? opts.flags : null;
    if (flags == null) dart.nullFailed(I[340], 177, 19, "flags");
    let actions = opts && 'actions' in opts ? opts.actions : null;
    if (actions == null) dart.nullFailed(I[340], 178, 19, "actions");
    let maxValueLength = opts && 'maxValueLength' in opts ? opts.maxValueLength : null;
    if (maxValueLength == null) dart.nullFailed(I[340], 179, 19, "maxValueLength");
    let currentValueLength = opts && 'currentValueLength' in opts ? opts.currentValueLength : null;
    if (currentValueLength == null) dart.nullFailed(I[340], 180, 19, "currentValueLength");
    let textSelectionBase = opts && 'textSelectionBase' in opts ? opts.textSelectionBase : null;
    if (textSelectionBase == null) dart.nullFailed(I[340], 181, 19, "textSelectionBase");
    let textSelectionExtent = opts && 'textSelectionExtent' in opts ? opts.textSelectionExtent : null;
    if (textSelectionExtent == null) dart.nullFailed(I[340], 182, 19, "textSelectionExtent");
    let platformViewId = opts && 'platformViewId' in opts ? opts.platformViewId : null;
    if (platformViewId == null) dart.nullFailed(I[340], 183, 19, "platformViewId");
    let scrollChildren = opts && 'scrollChildren' in opts ? opts.scrollChildren : null;
    if (scrollChildren == null) dart.nullFailed(I[340], 184, 19, "scrollChildren");
    let scrollIndex = opts && 'scrollIndex' in opts ? opts.scrollIndex : null;
    if (scrollIndex == null) dart.nullFailed(I[340], 185, 19, "scrollIndex");
    let scrollPosition = opts && 'scrollPosition' in opts ? opts.scrollPosition : null;
    if (scrollPosition == null) dart.nullFailed(I[340], 186, 19, "scrollPosition");
    let scrollExtentMax = opts && 'scrollExtentMax' in opts ? opts.scrollExtentMax : null;
    if (scrollExtentMax == null) dart.nullFailed(I[340], 187, 19, "scrollExtentMax");
    let scrollExtentMin = opts && 'scrollExtentMin' in opts ? opts.scrollExtentMin : null;
    if (scrollExtentMin == null) dart.nullFailed(I[340], 188, 19, "scrollExtentMin");
    let rect = opts && 'rect' in opts ? opts.rect : null;
    if (rect == null) dart.nullFailed(I[340], 189, 19, "rect");
    let identifier = opts && 'identifier' in opts ? opts.identifier : null;
    if (identifier == null) dart.nullFailed(I[340], 190, 19, "identifier");
    let label = opts && 'label' in opts ? opts.label : null;
    if (label == null) dart.nullFailed(I[340], 191, 19, "label");
    let labelAttributes = opts && 'labelAttributes' in opts ? opts.labelAttributes : null;
    if (labelAttributes == null) dart.nullFailed(I[340], 192, 19, "labelAttributes");
    let hint = opts && 'hint' in opts ? opts.hint : null;
    if (hint == null) dart.nullFailed(I[340], 193, 19, "hint");
    let hintAttributes = opts && 'hintAttributes' in opts ? opts.hintAttributes : null;
    if (hintAttributes == null) dart.nullFailed(I[340], 194, 19, "hintAttributes");
    let value = opts && 'value' in opts ? opts.value : null;
    if (value == null) dart.nullFailed(I[340], 195, 19, "value");
    let valueAttributes = opts && 'valueAttributes' in opts ? opts.valueAttributes : null;
    if (valueAttributes == null) dart.nullFailed(I[340], 196, 19, "valueAttributes");
    let increasedValue = opts && 'increasedValue' in opts ? opts.increasedValue : null;
    if (increasedValue == null) dart.nullFailed(I[340], 197, 19, "increasedValue");
    let increasedValueAttributes = opts && 'increasedValueAttributes' in opts ? opts.increasedValueAttributes : null;
    if (increasedValueAttributes == null) dart.nullFailed(I[340], 198, 19, "increasedValueAttributes");
    let decreasedValue = opts && 'decreasedValue' in opts ? opts.decreasedValue : null;
    if (decreasedValue == null) dart.nullFailed(I[340], 199, 19, "decreasedValue");
    let decreasedValueAttributes = opts && 'decreasedValueAttributes' in opts ? opts.decreasedValueAttributes : null;
    if (decreasedValueAttributes == null) dart.nullFailed(I[340], 200, 19, "decreasedValueAttributes");
    let tooltip = opts && 'tooltip' in opts ? opts.tooltip : null;
    let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
    let transform = opts && 'transform' in opts ? opts.transform : null;
    if (transform == null) dart.nullFailed(I[340], 203, 19, "transform");
    let elevation = opts && 'elevation' in opts ? opts.elevation : null;
    if (elevation == null) dart.nullFailed(I[340], 204, 19, "elevation");
    let thickness = opts && 'thickness' in opts ? opts.thickness : null;
    if (thickness == null) dart.nullFailed(I[340], 205, 19, "thickness");
    let childrenInTraversalOrder = opts && 'childrenInTraversalOrder' in opts ? opts.childrenInTraversalOrder : null;
    if (childrenInTraversalOrder == null) dart.nullFailed(I[340], 206, 19, "childrenInTraversalOrder");
    let childrenInHitTestOrder = opts && 'childrenInHitTestOrder' in opts ? opts.childrenInHitTestOrder : null;
    if (childrenInHitTestOrder == null) dart.nullFailed(I[340], 207, 19, "childrenInHitTestOrder");
    let additionalActions = opts && 'additionalActions' in opts ? opts.additionalActions : null;
    if (additionalActions == null) dart.nullFailed(I[340], 208, 19, "additionalActions");
    let headingLevel = opts && 'headingLevel' in opts ? opts.headingLevel : null;
    if (headingLevel == null) dart.nullFailed(I[340], 209, 19, "headingLevel");
    this[id$3] = id;
    this[flags$] = flags;
    this[actions$] = actions;
    this[maxValueLength$] = maxValueLength;
    this[currentValueLength$] = currentValueLength;
    this[textSelectionBase$] = textSelectionBase;
    this[textSelectionExtent$] = textSelectionExtent;
    this[platformViewId$0] = platformViewId;
    this[scrollChildren$] = scrollChildren;
    this[scrollIndex$] = scrollIndex;
    this[scrollPosition$] = scrollPosition;
    this[scrollExtentMax$] = scrollExtentMax;
    this[scrollExtentMin$] = scrollExtentMin;
    this[rect$6] = rect;
    this[identifier$] = identifier;
    this[label$] = label;
    this[labelAttributes$] = labelAttributes;
    this[hint$] = hint;
    this[hintAttributes$] = hintAttributes;
    this[value$9] = value;
    this[valueAttributes$] = valueAttributes;
    this[increasedValue$] = increasedValue;
    this[increasedValueAttributes$] = increasedValueAttributes;
    this[decreasedValue$] = decreasedValue;
    this[decreasedValueAttributes$] = decreasedValueAttributes;
    this[tooltip$] = tooltip;
    this[textDirection$] = textDirection;
    this[transform$2] = transform;
    this[elevation$0] = elevation;
    this[thickness$] = thickness;
    this[childrenInTraversalOrder$] = childrenInTraversalOrder;
    this[childrenInHitTestOrder$] = childrenInHitTestOrder;
    this[additionalActions$] = additionalActions;
    this[headingLevel$] = headingLevel;
    ;
  }).prototype = _engine.SemanticsNodeUpdate.prototype;
  dart.addRtiResources(_engine.SemanticsNodeUpdate, ["_engine|SemanticsNodeUpdate"]);
  dart.setLibraryUri(_engine.SemanticsNodeUpdate, I[220]);
  dart.setFieldSignature(_engine.SemanticsNodeUpdate, () => dart.global.Object.setPrototypeOf({
    id: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    flags: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    actions: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    maxValueLength: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    currentValueLength: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    textSelectionBase: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    textSelectionExtent: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    platformViewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    scrollChildren: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    scrollIndex: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    scrollPosition: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    scrollExtentMax: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    scrollExtentMin: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    rect: {type: T$8.Rect(), isConst: false, isFinal: true, libraryUri: I[198]},
    identifier: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    label: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    labelAttributes: {type: T$12.ListOfStringAttribute(), isConst: false, isFinal: true, libraryUri: I[11]},
    hint: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    hintAttributes: {type: T$12.ListOfStringAttribute(), isConst: false, isFinal: true, libraryUri: I[11]},
    value: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    valueAttributes: {type: T$12.ListOfStringAttribute(), isConst: false, isFinal: true, libraryUri: I[11]},
    increasedValue: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    increasedValueAttributes: {type: T$12.ListOfStringAttribute(), isConst: false, isFinal: true, libraryUri: I[11]},
    decreasedValue: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    decreasedValueAttributes: {type: T$12.ListOfStringAttribute(), isConst: false, isFinal: true, libraryUri: I[11]},
    tooltip: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    textDirection: {type: T$10.TextDirectionN(), isConst: false, isFinal: true, libraryUri: I[198]},
    transform: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    childrenInTraversalOrder: {type: T$0.Int32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    childrenInHitTestOrder: {type: T$0.Int32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    additionalActions: {type: T$0.Int32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    elevation: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    thickness: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    headingLevel: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SemanticsNodeUpdate))));
  _engine.PrimaryRole = class PrimaryRole extends core._Enum {
    [_enumToString]() {
      return "PrimaryRole." + dart.str(this[_name$]);
    }
  };
  (_engine.PrimaryRole.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[340], 319, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[340], 319, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.PrimaryRole).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.PrimaryRole.prototype;
  dart.addRtiResources(_engine.PrimaryRole, ["_engine|PrimaryRole"]);
  dart.setMethodSignature(_engine.PrimaryRole, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.PrimaryRole))));
  dart.setLibraryUri(_engine.PrimaryRole, I[220]);
  dart.setStaticFieldSignature(_engine.PrimaryRole, () => ['values', 'incrementable', 'scrollable', 'button', 'textField', 'checkable', 'heading', 'image', 'dialog', 'platformView', 'generic', 'link']);
  dart.defineLazy(_engine.PrimaryRole, {
    /*_engine.PrimaryRole.values*/get values() {
      return C[939] || CT.C939;
    },
    /*_engine.PrimaryRole.incrementable*/get incrementable() {
      return C[940] || CT.C940;
    },
    /*_engine.PrimaryRole.scrollable*/get scrollable() {
      return C[941] || CT.C941;
    },
    /*_engine.PrimaryRole.button*/get button() {
      return C[942] || CT.C942;
    },
    /*_engine.PrimaryRole.textField*/get textField() {
      return C[943] || CT.C943;
    },
    /*_engine.PrimaryRole.checkable*/get checkable() {
      return C[944] || CT.C944;
    },
    /*_engine.PrimaryRole.heading*/get heading() {
      return C[945] || CT.C945;
    },
    /*_engine.PrimaryRole.image*/get image() {
      return C[946] || CT.C946;
    },
    /*_engine.PrimaryRole.dialog*/get dialog() {
      return C[947] || CT.C947;
    },
    /*_engine.PrimaryRole.platformView*/get platformView() {
      return C[948] || CT.C948;
    },
    /*_engine.PrimaryRole.generic*/get generic() {
      return C[949] || CT.C949;
    },
    /*_engine.PrimaryRole.link*/get link() {
      return C[950] || CT.C950;
    }
  }, false);
  _engine.Role = class Role extends core._Enum {
    [_enumToString]() {
      return "Role." + dart.str(this[_name$]);
    }
  };
  (_engine.Role.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[340], 379, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[340], 379, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.Role).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.Role.prototype;
  dart.addRtiResources(_engine.Role, ["_engine|Role"]);
  dart.setMethodSignature(_engine.Role, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Role))));
  dart.setLibraryUri(_engine.Role, I[220]);
  dart.setStaticFieldSignature(_engine.Role, () => ['values', 'focusable', 'tappable', 'labelAndValue', 'liveRegion', 'routeName']);
  dart.defineLazy(_engine.Role, {
    /*_engine.Role.values*/get values() {
      return C[951] || CT.C951;
    },
    /*_engine.Role.focusable*/get focusable() {
      return C[952] || CT.C952;
    },
    /*_engine.Role.tappable*/get tappable() {
      return C[953] || CT.C953;
    },
    /*_engine.Role.labelAndValue*/get labelAndValue() {
      return C[954] || CT.C954;
    },
    /*_engine.Role.liveRegion*/get liveRegion() {
      return C[955] || CT.C955;
    },
    /*_engine.Role.routeName*/get routeName() {
      return C[956] || CT.C956;
    }
  }, false);
  _engine.GenericRole = class GenericRole extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[340], 638, 31, "semanticsObject");
      return new _engine.GenericRole.new(semanticsObject);
    }
    update() {
      if (!dart.test(this.semanticsObject.hasLabel)) {
        super.update();
        return;
      }
      if (dart.test(this.semanticsObject.hasChildren)) {
        dart.nullCheck(this.labelAndValue).preferredRepresentation = _engine.LabelRepresentation.ariaLabel;
        this.setAriaRole("group");
      } else if (dart.test(this.semanticsObject.hasFlag(ui.SemanticsFlag.isHeader))) {
        dart.nullCheck(this.labelAndValue).preferredRepresentation = _engine.LabelRepresentation.domText;
        this.setAriaRole("heading");
      } else {
        dart.nullCheck(this.labelAndValue).preferredRepresentation = _engine.LabelRepresentation.sizedSpan;
        this.removeAttribute("role");
      }
      super.update();
    }
    focusAsRouteDefault() {
      if (dart.test(this.semanticsObject.isFocusable)) {
        let focusable = this.focusable;
        if (focusable != null) {
          return focusable.focusAsRouteDefault();
        }
      }
      if (dart.test(this.semanticsObject.hasChildren) || !dart.test(this.semanticsObject.hasLabel)) {
        return false;
      }
      dart.nullCheck(this.labelAndValue).focusAsRouteDefault();
      return true;
    }
  };
  (_engine.GenericRole.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[340], 638, 31, "semanticsObject");
    dart.global.Object.getPrototypeOf(_engine.GenericRole).withBasics.call(this, _engine.PrimaryRole.generic, semanticsObject, {preferredLabelRepresentation: _engine.LabelRepresentation.sizedSpan});
    if (dart.test(semanticsObject.isTappable)) {
      this.addTappable();
    }
  }).prototype = _engine.GenericRole.prototype;
  dart.addRtiResources(_engine.GenericRole, ["_engine|GenericRole"]);
  dart.setMethodSignature(_engine.GenericRole, () => dart.global.Object.setPrototypeOf({focusAsRouteDefault: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.GenericRole))));
  dart.setLibraryUri(_engine.GenericRole, I[220]);
  var id$4 = dart.privateName(_engine, "SemanticsObject.id");
  var owner$1 = dart.privateName(_engine, "SemanticsObject.owner");
  var primaryRole = dart.privateName(_engine, "SemanticsObject.primaryRole");
  var verticalContainerAdjustment = dart.privateName(_engine, "SemanticsObject.verticalContainerAdjustment");
  var horizontalContainerAdjustment = dart.privateName(_engine, "SemanticsObject.horizontalContainerAdjustment");
  var _flags = dart.privateName(_engine, "_flags");
  var _actions = dart.privateName(_engine, "_actions");
  var _textSelectionBase = dart.privateName(_engine, "_textSelectionBase");
  var _textSelectionExtent = dart.privateName(_engine, "_textSelectionExtent");
  var _scrollChildren = dart.privateName(_engine, "_scrollChildren");
  var _scrollIndex = dart.privateName(_engine, "_scrollIndex");
  var _scrollPosition = dart.privateName(_engine, "_scrollPosition");
  var _scrollExtentMax = dart.privateName(_engine, "_scrollExtentMax");
  var _scrollExtentMin = dart.privateName(_engine, "_scrollExtentMin");
  var _rect = dart.privateName(_engine, "_rect");
  var _label = dart.privateName(_engine, "_label");
  var _labelAttributes = dart.privateName(_engine, "_labelAttributes");
  var _hint = dart.privateName(_engine, "_hint");
  var _hintAttributes = dart.privateName(_engine, "_hintAttributes");
  var _value$5 = dart.privateName(_engine, "_value");
  var _valueAttributes = dart.privateName(_engine, "_valueAttributes");
  var _increasedValue = dart.privateName(_engine, "_increasedValue");
  var _increasedValueAttributes = dart.privateName(_engine, "_increasedValueAttributes");
  var _decreasedValue = dart.privateName(_engine, "_decreasedValue");
  var _decreasedValueAttributes = dart.privateName(_engine, "_decreasedValueAttributes");
  var _childrenInTraversalOrder = dart.privateName(_engine, "_childrenInTraversalOrder");
  var _childrenInHitTestOrder = dart.privateName(_engine, "_childrenInHitTestOrder");
  var _additionalActions = dart.privateName(_engine, "_additionalActions");
  var _tooltip = dart.privateName(_engine, "_tooltip");
  var _platformViewId = dart.privateName(_engine, "_platformViewId");
  var _headingLevel = dart.privateName(_engine, "_headingLevel");
  var _identifier = dart.privateName(_engine, "_identifier");
  var _dirtyFields = dart.privateName(_engine, "_dirtyFields");
  var _childContainerElement = dart.privateName(_engine, "_childContainerElement");
  var _parent$0 = dart.privateName(_engine, "_parent");
  var _currentChildrenInRenderOrder = dart.privateName(_engine, "_currentChildrenInRenderOrder");
  var _isDirty = dart.privateName(_engine, "_isDirty");
  var _markFlagsDirty = dart.privateName(_engine, "_markFlagsDirty");
  var _markActionsDirty = dart.privateName(_engine, "_markActionsDirty");
  var _markTextSelectionBaseDirty = dart.privateName(_engine, "_markTextSelectionBaseDirty");
  var _markTextSelectionExtentDirty = dart.privateName(_engine, "_markTextSelectionExtentDirty");
  var _markScrollChildrenDirty = dart.privateName(_engine, "_markScrollChildrenDirty");
  var _markScrollIndexDirty = dart.privateName(_engine, "_markScrollIndexDirty");
  var _markScrollPositionDirty = dart.privateName(_engine, "_markScrollPositionDirty");
  var _markScrollExtentMaxDirty = dart.privateName(_engine, "_markScrollExtentMaxDirty");
  var _markScrollExtentMinDirty = dart.privateName(_engine, "_markScrollExtentMinDirty");
  var _markRectDirty = dart.privateName(_engine, "_markRectDirty");
  var _markLabelDirty = dart.privateName(_engine, "_markLabelDirty");
  var _markHintDirty = dart.privateName(_engine, "_markHintDirty");
  var _markValueDirty = dart.privateName(_engine, "_markValueDirty");
  var _markIncreasedValueDirty = dart.privateName(_engine, "_markIncreasedValueDirty");
  var _markDecreasedValueDirty = dart.privateName(_engine, "_markDecreasedValueDirty");
  var _markTextDirectionDirty = dart.privateName(_engine, "_markTextDirectionDirty");
  var _markTransformDirty = dart.privateName(_engine, "_markTransformDirty");
  var _markChildrenInTraversalOrderDirty = dart.privateName(_engine, "_markChildrenInTraversalOrderDirty");
  var _markChildrenInHitTestOrderDirty = dart.privateName(_engine, "_markChildrenInHitTestOrderDirty");
  var _markAdditionalActionsDirty = dart.privateName(_engine, "_markAdditionalActionsDirty");
  var _markTooltipDirty = dart.privateName(_engine, "_markTooltipDirty");
  var _markPlatformViewIdDirty = dart.privateName(_engine, "_markPlatformViewIdDirty");
  var _markHeadingLevelDirty = dart.privateName(_engine, "_markHeadingLevelDirty");
  var _markIdentifierDirty = dart.privateName(_engine, "_markIdentifierDirty");
  var _updateRoles = dart.privateName(_engine, "_updateRoles");
  var _detachObject = dart.privateName(_engine, "_detachObject");
  var _semanticsTree = dart.privateName(_engine, "_semanticsTree");
  var _attachObject = dart.privateName(_engine, "_attachObject");
  var _getPrimaryRoleIdentifier = dart.privateName(_engine, "_getPrimaryRoleIdentifier");
  var _createPrimaryRole = dart.privateName(_engine, "_createPrimaryRole");
  var _debugVisitRenderedSemanticNodesDepthFirst = dart.privateName(_engine, "_debugVisitRenderedSemanticNodesDepthFirst");
  var _visitDepthFirstInTraversalOrder = dart.privateName(_engine, "_visitDepthFirstInTraversalOrder");
  _engine.SemanticsObject = class SemanticsObject extends core.Object {
    get id() {
      return this[id$4];
    }
    set id(value) {
      super.id = value;
    }
    get owner() {
      return this[owner$1];
    }
    set owner(value) {
      super.owner = value;
    }
    get primaryRole() {
      return this[primaryRole];
    }
    set primaryRole(value) {
      this[primaryRole] = value;
    }
    get verticalContainerAdjustment() {
      return this[verticalContainerAdjustment];
    }
    set verticalContainerAdjustment(value) {
      if (value == null) dart.nullFailed(I[340], 1741, 10, "verticalContainerAdjustment");
      this[verticalContainerAdjustment] = value;
    }
    get horizontalContainerAdjustment() {
      return this[horizontalContainerAdjustment];
    }
    set horizontalContainerAdjustment(value) {
      if (value == null) dart.nullFailed(I[340], 1750, 10, "horizontalContainerAdjustment");
      this[horizontalContainerAdjustment] = value;
    }
    static ['_#new#tearOff'](id, owner) {
      if (id == null) dart.nullFailed(I[340], 773, 24, "id");
      if (owner == null) dart.nullFailed(I[340], 773, 33, "owner");
      return new _engine.SemanticsObject.new(id, owner);
    }
    get flags() {
      return this[_flags];
    }
    get isFlagsDirty() {
      return this[_isDirty](1);
    }
    [_markFlagsDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 1) >>> 0;
    }
    get actions() {
      return this[_actions];
    }
    get isActionsDirty() {
      return this[_isDirty](2);
    }
    [_markActionsDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 2) >>> 0;
    }
    get textSelectionBase() {
      return this[_textSelectionBase];
    }
    get isTextSelectionBaseDirty() {
      return this[_isDirty](4);
    }
    [_markTextSelectionBaseDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 4) >>> 0;
    }
    get textSelectionExtent() {
      return this[_textSelectionExtent];
    }
    get isTextSelectionExtentDirty() {
      return this[_isDirty](8);
    }
    [_markTextSelectionExtentDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 8) >>> 0;
    }
    get scrollChildren() {
      return this[_scrollChildren];
    }
    get isScrollChildrenDirty() {
      return this[_isDirty](16);
    }
    [_markScrollChildrenDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 16) >>> 0;
    }
    get scrollIndex() {
      return this[_scrollIndex];
    }
    get isScrollIndexDirty() {
      return this[_isDirty](32);
    }
    [_markScrollIndexDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 32) >>> 0;
    }
    get scrollPosition() {
      return this[_scrollPosition];
    }
    get isScrollPositionDirty() {
      return this[_isDirty](64);
    }
    [_markScrollPositionDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 64) >>> 0;
    }
    get scrollExtentMax() {
      return this[_scrollExtentMax];
    }
    get isScrollExtentMaxDirty() {
      return this[_isDirty](128);
    }
    [_markScrollExtentMaxDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 128) >>> 0;
    }
    get scrollExtentMin() {
      return this[_scrollExtentMin];
    }
    get isScrollExtentMinDirty() {
      return this[_isDirty](256);
    }
    [_markScrollExtentMinDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 256) >>> 0;
    }
    get rect() {
      return this[_rect];
    }
    get isRectDirty() {
      return this[_isDirty](512);
    }
    [_markRectDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 512) >>> 0;
    }
    get label() {
      return this[_label];
    }
    get labelAttributes() {
      return this[_labelAttributes];
    }
    get hasLabel() {
      return this[_label] != null && dart.nullCheck(this[_label])[$isNotEmpty];
    }
    get isLabelDirty() {
      return this[_isDirty](1024);
    }
    [_markLabelDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 1024) >>> 0;
    }
    get hint() {
      return this[_hint];
    }
    get hintAttributes() {
      return this[_hintAttributes];
    }
    get isHintDirty() {
      return this[_isDirty](2048);
    }
    [_markHintDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 2048) >>> 0;
    }
    get value() {
      return this[_value$5];
    }
    get valueAttributes() {
      return this[_valueAttributes];
    }
    get hasValue() {
      return this[_value$5] != null && dart.nullCheck(this[_value$5])[$isNotEmpty];
    }
    get isValueDirty() {
      return this[_isDirty](4096);
    }
    [_markValueDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 4096) >>> 0;
    }
    get increasedValue() {
      return this[_increasedValue];
    }
    get increasedValueAttributes() {
      return this[_increasedValueAttributes];
    }
    get isIncreasedValueDirty() {
      return this[_isDirty](8192);
    }
    [_markIncreasedValueDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 8192) >>> 0;
    }
    get decreasedValue() {
      return this[_decreasedValue];
    }
    get decreasedValueAttributes() {
      return this[_decreasedValueAttributes];
    }
    get isDecreasedValueDirty() {
      return this[_isDirty](16384);
    }
    [_markDecreasedValueDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 16384) >>> 0;
    }
    get textDirection() {
      return this[_textDirection$];
    }
    get isTextDirectionDirty() {
      return this[_isDirty](32768);
    }
    [_markTextDirectionDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 32768) >>> 0;
    }
    get transform() {
      return this[_transform$];
    }
    get isTransformDirty() {
      return this[_isDirty](65536);
    }
    [_markTransformDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 65536) >>> 0;
    }
    get childrenInTraversalOrder() {
      return this[_childrenInTraversalOrder];
    }
    get isChildrenInTraversalOrderDirty() {
      return this[_isDirty](524288);
    }
    [_markChildrenInTraversalOrderDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 524288) >>> 0;
    }
    get childrenInHitTestOrder() {
      return this[_childrenInHitTestOrder];
    }
    get isChildrenInHitTestOrderDirty() {
      return this[_isDirty](1048576);
    }
    [_markChildrenInHitTestOrderDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 1048576) >>> 0;
    }
    get additionalActions() {
      return this[_additionalActions];
    }
    get isAdditionalActionsDirty() {
      return this[_isDirty](2097152);
    }
    [_markAdditionalActionsDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 2097152) >>> 0;
    }
    get tooltip() {
      return this[_tooltip];
    }
    get hasTooltip() {
      return this[_tooltip] != null && dart.nullCheck(this[_tooltip])[$isNotEmpty];
    }
    get isTooltipDirty() {
      return this[_isDirty](4194304);
    }
    [_markTooltipDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 4194304) >>> 0;
    }
    get platformViewId() {
      return this[_platformViewId];
    }
    get isPlatformView() {
      return this[_platformViewId] !== -1;
    }
    get isPlatformViewIdDirty() {
      return this[_isDirty](8388608);
    }
    [_markPlatformViewIdDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 8388608) >>> 0;
    }
    get headingLevel() {
      return this[_headingLevel];
    }
    get isHeadingLevelDirty() {
      return this[_isDirty](16777216);
    }
    [_markHeadingLevelDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 16777216) >>> 0;
    }
    get identifier() {
      return this[_identifier];
    }
    get hasIdentifier() {
      return this[_identifier] != null && dart.nullCheck(this[_identifier])[$isNotEmpty];
    }
    get isIdentifierDirty() {
      return this[_isDirty](33554432);
    }
    [_markIdentifierDirty]() {
      this[_dirtyFields] = (dart.notNull(this[_dirtyFields]) | 33554432) >>> 0;
    }
    [_isDirty](fieldIndex) {
      if (fieldIndex == null) dart.nullFailed(I[340], 1138, 21, "fieldIndex");
      return (dart.notNull(this[_dirtyFields]) & dart.notNull(fieldIndex)) !== 0;
    }
    get element() {
      return dart.nullCheck(this.primaryRole).element;
    }
    getOrCreateChildContainer() {
      let t$36601;
      if (this[_childContainerElement] == null) {
        this[_childContainerElement] = _engine.createDomElement("flt-semantics-container");
        t$36601 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(this[_childContainerElement]), "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#position'](t$36601, "absolute");
          _engine['DomCSSStyleDeclarationExtension|set#pointerEvents'](t$36601, "none");
          return t$36601;
        })();
        this.element.append(dart.nullCheck(this[_childContainerElement]));
      }
      return this[_childContainerElement];
    }
    get parent() {
      if (!(this.owner.phase == _engine.SemanticsUpdatePhase.postUpdate)) dart.assertFailed(null, I[340], 1177, 12, "owner.phase == SemanticsUpdatePhase.postUpdate");
      return this[_parent$0];
    }
    hasFlag(flag) {
      if (flag == null) dart.nullFailed(I[340], 1183, 33, "flag");
      return (dart.notNull(this[_flags]) & dart.notNull(flag.index)) !== 0;
    }
    hasAction(action) {
      if (action == null) dart.nullFailed(I[340], 1186, 37, "action");
      return (dart.nullCheck(this[_actions]) & dart.notNull(action.index)) !== 0;
    }
    get isFocusable() {
      return this.hasFlag(ui.SemanticsFlag.isFocusable);
    }
    get hasFocus() {
      return this.hasFlag(ui.SemanticsFlag.isFocused);
    }
    get hasEnabledState() {
      return this.hasFlag(ui.SemanticsFlag.hasEnabledState);
    }
    get isEnabled() {
      return this.hasFlag(ui.SemanticsFlag.isEnabled);
    }
    get isVerticalScrollContainer() {
      return dart.test(this.hasAction(ui.SemanticsAction.scrollDown)) || dart.test(this.hasAction(ui.SemanticsAction.scrollUp));
    }
    get isHorizontalScrollContainer() {
      return dart.test(this.hasAction(ui.SemanticsAction.scrollLeft)) || dart.test(this.hasAction(ui.SemanticsAction.scrollRight));
    }
    get isScrollContainer() {
      return dart.test(this.isVerticalScrollContainer) || dart.test(this.isHorizontalScrollContainer);
    }
    get hasChildren() {
      return this[_childrenInTraversalOrder] != null && dart.test(dart.nullCheck(this[_childrenInTraversalOrder])[$isNotEmpty]);
    }
    get isTextField() {
      return this.hasFlag(ui.SemanticsFlag.isTextField);
    }
    get isHeading() {
      return this.headingLevel !== 0;
    }
    get isLink() {
      return this.hasFlag(ui.SemanticsFlag.isLink);
    }
    get isLiveRegion() {
      return dart.test(this.hasFlag(ui.SemanticsFlag.isLiveRegion)) && !dart.test(this.hasFlag(ui.SemanticsFlag.isHidden));
    }
    get isVisualOnly() {
      return dart.test(this.hasFlag(ui.SemanticsFlag.isImage)) && !dart.test(this.isTappable) && !dart.test(this.isButton);
    }
    get scopesRoute() {
      return this.hasFlag(ui.SemanticsFlag.scopesRoute);
    }
    get namesRoute() {
      return this.hasFlag(ui.SemanticsFlag.namesRoute);
    }
    enabledState() {
      if (dart.test(this.hasFlag(ui.SemanticsFlag.hasEnabledState))) {
        if (dart.test(this.hasFlag(ui.SemanticsFlag.isEnabled))) {
          return _engine.EnabledState.enabled;
        } else {
          return _engine.EnabledState.disabled;
        }
      } else {
        return _engine.EnabledState.noOpinion;
      }
    }
    updateSelf(update) {
      if (update == null) dart.nullFailed(I[340], 1273, 39, "update");
      if (this[_flags] != update.flags) {
        this[_flags] = update.flags;
        this[_markFlagsDirty]();
      }
      if (this[_identifier] != update.identifier) {
        this[_identifier] = update.identifier;
        this[_markIdentifierDirty]();
      }
      if (this[_value$5] != update.value) {
        this[_value$5] = update.value;
        this[_markValueDirty]();
      }
      if (!dart.equals(this[_valueAttributes], update.valueAttributes)) {
        this[_valueAttributes] = update.valueAttributes;
        this[_markValueDirty]();
      }
      if (this[_label] != update.label) {
        this[_label] = update.label;
        this[_markLabelDirty]();
      }
      if (!dart.equals(this[_labelAttributes], update.labelAttributes)) {
        this[_labelAttributes] = update.labelAttributes;
        this[_markLabelDirty]();
      }
      if (!dart.equals(this[_rect], update.rect)) {
        this[_rect] = update.rect;
        this[_markRectDirty]();
      }
      if (!dart.equals(this[_transform$], update.transform)) {
        this[_transform$] = update.transform;
        this[_markTransformDirty]();
      }
      if (this[_scrollPosition] != update.scrollPosition) {
        this[_scrollPosition] = update.scrollPosition;
        this[_markScrollPositionDirty]();
      }
      if (this[_actions] != update.actions) {
        this[_actions] = update.actions;
        this[_markActionsDirty]();
      }
      if (this[_textSelectionBase] != update.textSelectionBase) {
        this[_textSelectionBase] = update.textSelectionBase;
        this[_markTextSelectionBaseDirty]();
      }
      if (this[_textSelectionExtent] != update.textSelectionExtent) {
        this[_textSelectionExtent] = update.textSelectionExtent;
        this[_markTextSelectionExtentDirty]();
      }
      if (this[_scrollChildren] != update.scrollChildren) {
        this[_scrollChildren] = update.scrollChildren;
        this[_markScrollChildrenDirty]();
      }
      if (this[_scrollIndex] != update.scrollIndex) {
        this[_scrollIndex] = update.scrollIndex;
        this[_markScrollIndexDirty]();
      }
      if (this[_scrollExtentMax] != update.scrollExtentMax) {
        this[_scrollExtentMax] = update.scrollExtentMax;
        this[_markScrollExtentMaxDirty]();
      }
      if (this[_scrollExtentMin] != update.scrollExtentMin) {
        this[_scrollExtentMin] = update.scrollExtentMin;
        this[_markScrollExtentMinDirty]();
      }
      if (this[_hint] != update.hint) {
        this[_hint] = update.hint;
        this[_markHintDirty]();
      }
      if (!dart.equals(this[_hintAttributes], update.hintAttributes)) {
        this[_hintAttributes] = update.hintAttributes;
        this[_markHintDirty]();
      }
      if (this[_increasedValue] != update.increasedValue) {
        this[_increasedValue] = update.increasedValue;
        this[_markIncreasedValueDirty]();
      }
      if (!dart.equals(this[_increasedValueAttributes], update.increasedValueAttributes)) {
        this[_increasedValueAttributes] = update.increasedValueAttributes;
        this[_markIncreasedValueDirty]();
      }
      if (this[_decreasedValue] != update.decreasedValue) {
        this[_decreasedValue] = update.decreasedValue;
        this[_markDecreasedValueDirty]();
      }
      if (!dart.equals(this[_decreasedValueAttributes], update.decreasedValueAttributes)) {
        this[_decreasedValueAttributes] = update.decreasedValueAttributes;
        this[_markDecreasedValueDirty]();
      }
      if (this[_tooltip] != update.tooltip) {
        this[_tooltip] = update.tooltip;
        this[_markTooltipDirty]();
      }
      if (this[_headingLevel] != update.headingLevel) {
        this[_headingLevel] = update.headingLevel;
        this[_markHeadingLevelDirty]();
      }
      if (this[_textDirection$] != update.textDirection) {
        this[_textDirection$] = update.textDirection;
        this[_markTextDirectionDirty]();
      }
      if (!dart.equals(this[_childrenInHitTestOrder], update.childrenInHitTestOrder)) {
        this[_childrenInHitTestOrder] = update.childrenInHitTestOrder;
        this[_markChildrenInHitTestOrderDirty]();
      }
      if (!dart.equals(this[_childrenInTraversalOrder], update.childrenInTraversalOrder)) {
        this[_childrenInTraversalOrder] = update.childrenInTraversalOrder;
        this[_markChildrenInTraversalOrderDirty]();
      }
      if (!dart.equals(this[_additionalActions], update.additionalActions)) {
        this[_additionalActions] = update.additionalActions;
        this[_markAdditionalActionsDirty]();
      }
      if (this[_platformViewId] != update.platformViewId) {
        this[_platformViewId] = update.platformViewId;
        this[_markPlatformViewIdDirty]();
      }
      this[_updateRoles]();
      if (dart.test(this.isRectDirty) || dart.test(this.isTransformDirty) || dart.test(this.isScrollPositionDirty)) {
        this.recomputePositionAndSize();
      }
      if (!dart.test(this.hasChildren) && !dart.test(this.isPlatformView)) {
        _engine['DomCSSStyleDeclarationExtension|set#pointerEvents'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style"), "all");
      } else {
        _engine['DomCSSStyleDeclarationExtension|set#pointerEvents'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style"), "none");
      }
    }
    updateChildren() {
      if (this[_childrenInHitTestOrder] == null || dart.test(dart.nullCheck(this[_childrenInHitTestOrder])[$isEmpty])) {
        if (this[_currentChildrenInRenderOrder] == null || dart.test(dart.nullCheck(this[_currentChildrenInRenderOrder])[$isEmpty])) {
          if (!(this[_childContainerElement] == null)) dart.assertFailed(null, I[340], 1463, 16, "_childContainerElement == null");
          this[_currentChildrenInRenderOrder] = null;
          return;
        }
        if (!(this[_childContainerElement] != null)) dart.assertFailed(null, I[340], 1469, 14, "_childContainerElement != null");
        let len = dart.nullCheck(this[_currentChildrenInRenderOrder])[$length];
        for (let i = 0; i < dart.notNull(len); i = i + 1) {
          this.owner[_detachObject](dart.nullCheck(this[_currentChildrenInRenderOrder])[$_get](i).id);
        }
        dart.nullCheck(this[_childContainerElement]).remove();
        this[_childContainerElement] = null;
        this[_currentChildrenInRenderOrder] = null;
        return;
      }
      let childrenInTraversalOrder = dart.nullCheck(this[_childrenInTraversalOrder]);
      let childrenInHitTestOrder = dart.nullCheck(this[_childrenInHitTestOrder]);
      let childCount = childrenInHitTestOrder[$length];
      let containerElement = this.getOrCreateChildContainer();
      if (!(childrenInTraversalOrder[$length] == childrenInHitTestOrder[$length])) dart.assertFailed(null, I[340], 1488, 12, "childrenInTraversalOrder.length == childrenInHitTestOrder.length");
      let childrenInRenderOrder = G$.JSArrayOfSemanticsObject().of([]);
      for (let i = 0; i < dart.notNull(childCount); i = i + 1) {
        childrenInRenderOrder[$add](dart.nullCheck(this.owner[_semanticsTree][$_get](childrenInTraversalOrder[$_get](i))));
      }
      let zIndexMatters = dart.notNull(childCount) > 1;
      if (zIndexMatters) {
        for (let i = 0; i < dart.notNull(childCount); i = i + 1) {
          let child = dart.nullCheck(this.owner[_semanticsTree][$_get](childrenInHitTestOrder[$_get](i)));
          _engine['DomCSSStyleDeclarationExtension|set#zIndex'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), child.element, "style"), dart.strSafe(dart.notNull(childCount) - i));
        }
      }
      if (this[_currentChildrenInRenderOrder] == null || dart.test(dart.nullCheck(this[_currentChildrenInRenderOrder])[$isEmpty])) {
        for (let child of childrenInRenderOrder) {
          dart.nullCheck(containerElement).append(child.element);
          this.owner[_attachObject]({parent: this, child: child});
        }
        this[_currentChildrenInRenderOrder] = childrenInRenderOrder;
        return;
      }
      let previousChildrenInRenderOrder = dart.nullCheck(this[_currentChildrenInRenderOrder]);
      let previousCount = previousChildrenInRenderOrder[$length];
      let intersectionIndicesOld = G.JSArrayOfint().of([]);
      let newIndex = 0;
      let minLength = math.min(T$.int(), previousCount, childCount);
      while (newIndex < minLength && dart.equals(previousChildrenInRenderOrder[$_get](newIndex), childrenInRenderOrder[$_get](newIndex))) {
        intersectionIndicesOld[$add](newIndex);
        newIndex = newIndex + 1;
      }
      if (previousCount == childrenInRenderOrder[$length] && newIndex === childCount) {
        return;
      }
      while (newIndex < dart.notNull(childCount)) {
        for (let oldIndex = 0; oldIndex < dart.notNull(previousCount); oldIndex = oldIndex + 1) {
          if (dart.equals(previousChildrenInRenderOrder[$_get](oldIndex), childrenInRenderOrder[$_get](newIndex))) {
            intersectionIndicesOld[$add](oldIndex);
            break;
          }
        }
        newIndex = newIndex + 1;
      }
      let longestSequence = _engine.longestIncreasingSubsequence(intersectionIndicesOld);
      let stationaryIds = G.JSArrayOfint().of([]);
      for (let i = 0; i < dart.notNull(longestSequence[$length]); i = i + 1) {
        stationaryIds[$add](previousChildrenInRenderOrder[$_get](intersectionIndicesOld[$_get](dart.nullCheck(longestSequence[$_get](i)))).id);
      }
      for (let i = 0; i < dart.notNull(previousCount); i = i + 1) {
        if (!dart.test(intersectionIndicesOld[$contains](i))) {
          let childId = previousChildrenInRenderOrder[$_get](i).id;
          this.owner[_detachObject](childId);
        }
      }
      let refNode = null;
      for (let i = dart.notNull(childCount) - 1; i >= 0; i = i - 1) {
        let child = childrenInRenderOrder[$_get](i);
        if (!dart.test(stationaryIds[$contains](child.id))) {
          if (refNode == null) {
            dart.nullCheck(containerElement).append(child.element);
          } else {
            T$9.DomNode()[_as](dart.nullCheck(containerElement).insertBefore(child.element, refNode));
          }
          this.owner[_attachObject]({parent: this, child: child});
        } else {
          if (!dart.equals(child[_parent$0], this)) dart.assertFailed(null, I[340], 1611, 16, "child._parent == this");
        }
        refNode = child.element;
      }
      this[_currentChildrenInRenderOrder] = childrenInRenderOrder;
    }
    [_getPrimaryRoleIdentifier]() {
      if (dart.test(this.isPlatformView)) {
        return _engine.PrimaryRole.platformView;
      } else if (dart.test(this.isHeading)) {
        return _engine.PrimaryRole.heading;
      } else if (dart.test(this.isTextField)) {
        return _engine.PrimaryRole.textField;
      } else if (dart.test(this.isIncrementable)) {
        return _engine.PrimaryRole.incrementable;
      } else if (dart.test(this.isVisualOnly)) {
        return _engine.PrimaryRole.image;
      } else if (dart.test(this.isCheckable)) {
        return _engine.PrimaryRole.checkable;
      } else if (dart.test(this.isButton)) {
        return _engine.PrimaryRole.button;
      } else if (dart.test(this.isScrollContainer)) {
        return _engine.PrimaryRole.scrollable;
      } else if (dart.test(this.scopesRoute)) {
        return _engine.PrimaryRole.dialog;
      } else if (dart.test(this.isLink)) {
        return _engine.PrimaryRole.link;
      } else {
        return _engine.PrimaryRole.generic;
      }
    }
    [_createPrimaryRole](role) {
      if (role == null) dart.nullFailed(I[340], 1652, 53, "role");
      return (() => {
        let t$36601 = null;
        switch (role) {
          case C[943] || CT.C943:
            {
              t$36601 = new _engine.TextField.new(this);
              break;
            }
          case C[941] || CT.C941:
            {
              t$36601 = new _engine.Scrollable.new(this);
              break;
            }
          case C[940] || CT.C940:
            {
              t$36601 = new _engine.Incrementable.new(this);
              break;
            }
          case C[942] || CT.C942:
            {
              t$36601 = new _engine.Button.new(this);
              break;
            }
          case C[944] || CT.C944:
            {
              t$36601 = new _engine.Checkable.new(this);
              break;
            }
          case C[947] || CT.C947:
            {
              t$36601 = new _engine.Dialog.new(this);
              break;
            }
          case C[946] || CT.C946:
            {
              t$36601 = new _engine.ImageRoleManager.new(this);
              break;
            }
          case C[948] || CT.C948:
            {
              t$36601 = new _engine.PlatformViewRoleManager.new(this);
              break;
            }
          case C[950] || CT.C950:
            {
              t$36601 = new _engine.Link.new(this);
              break;
            }
          case C[945] || CT.C945:
            {
              t$36601 = new _engine.Heading.new(this);
              break;
            }
          case C[949] || CT.C949:
            {
              t$36601 = new _engine.GenericRole.new(this);
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36601;
      })();
    }
    [_updateRoles]() {
      let t$36602, t$36602$;
      let currentPrimaryRole = this.primaryRole;
      let roleId = this[_getPrimaryRoleIdentifier]();
      let previousElement = (t$36602 = this.primaryRole, t$36602 == null ? null : t$36602.element);
      if (currentPrimaryRole != null) {
        if (currentPrimaryRole.role == roleId) {
          currentPrimaryRole.update();
          return;
        } else {
          currentPrimaryRole.dispose();
          currentPrimaryRole = null;
          this.primaryRole = null;
        }
      }
      if (currentPrimaryRole == null) {
        currentPrimaryRole = this[_createPrimaryRole](roleId);
        this.primaryRole = currentPrimaryRole;
        currentPrimaryRole.initState();
        currentPrimaryRole.update();
      }
      if (!dart.equals(previousElement, this.element)) {
        let container = this[_childContainerElement];
        if (container != null) {
          this.element.append(container);
        }
        let parent = (t$36602$ = previousElement, t$36602$ == null ? null : _engine['DomNodeExtension|get#parent'](t$36602$));
        if (parent != null) {
          T$9.DomNode()[_as](parent.insertBefore(this.element, previousElement));
          dart.nullCheck(previousElement).remove();
        }
      }
    }
    get isIncrementable() {
      return dart.test(this.hasAction(ui.SemanticsAction.increase)) || dart.test(this.hasAction(ui.SemanticsAction.decrease));
    }
    get isButton() {
      return this.hasFlag(ui.SemanticsFlag.isButton);
    }
    get isTappable() {
      return this.hasAction(ui.SemanticsAction.tap);
    }
    get isCheckable() {
      return dart.test(this.hasFlag(ui.SemanticsFlag.hasCheckedState)) || dart.test(this.hasFlag(ui.SemanticsFlag.hasToggledState));
    }
    recomputePositionAndSize() {
      let t$36602, t$36605, t$36605$, t$36605$0;
      t$36602 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36602, dart.str(dart.nullCheck(this[_rect]).width) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36602, dart.str(dart.nullCheck(this[_rect]).height) + "px");
        return t$36602;
      })();
      let containerElement = dart.test(this.hasChildren) ? this.getOrCreateChildContainer() : null;
      let hasZeroRectOffset = dart.nullCheck(this[_rect]).top === 0.0 && dart.nullCheck(this[_rect]).left === 0.0;
      let transform = this[_transform$];
      let hasIdentityTransform = transform == null || dart.test(_engine.isIdentityFloat32ListTransform(transform));
      if (hasZeroRectOffset && hasIdentityTransform && this.verticalContainerAdjustment === 0.0 && this.horizontalContainerAdjustment === 0.0) {
        _engine.SemanticsObject._clearSemanticElementTransform(this.element);
        if (containerElement != null) {
          _engine.SemanticsObject._clearSemanticElementTransform(containerElement);
        }
        return;
      }
      let effectiveTransform = null;
      let t$36$35effectiveTransform$35isSet = false;
      function t$36$35effectiveTransform$35get() {
        return t$36$35effectiveTransform$35isSet ? effectiveTransform : dart.throw(new _internal.LateError.localNI("effectiveTransform"));
      }
      function t$36$35effectiveTransform$35set(effectiveTransform$35param) {
        if (effectiveTransform$35param == null) dart.nullFailed(I[340], 1778, 18, "effectiveTransform#param");
        t$36$35effectiveTransform$35isSet = true;
        return effectiveTransform = effectiveTransform$35param;
      }
      let effectiveTransformIsIdentity = true;
      if (!hasZeroRectOffset) {
        if (transform == null) {
          let left = dart.nullCheck(this[_rect]).left;
          let top = dart.nullCheck(this[_rect]).top;
          t$36$35effectiveTransform$35set(_engine.Matrix4.translationValues(left, top, 0.0));
          effectiveTransformIsIdentity = left === 0.0 && top === 0.0;
        } else {
          t$36$35effectiveTransform$35set((t$36605 = new _engine.Matrix4.fromFloat32List(transform).clone(), (() => {
            t$36605.translate(dart.nullCheck(this[_rect]).left, dart.nullCheck(this[_rect]).top);
            return t$36605;
          })()));
          effectiveTransformIsIdentity = t$36$35effectiveTransform$35get().isIdentity();
        }
      } else if (!hasIdentityTransform) {
        t$36$35effectiveTransform$35set(new _engine.Matrix4.fromFloat32List(transform));
        effectiveTransformIsIdentity = false;
      }
      if (!dart.test(effectiveTransformIsIdentity)) {
        t$36605$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.element, "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$36605$, "0 0 0");
          _engine['DomCSSStyleDeclarationExtension|set#transform'](t$36605$, _engine.matrix4ToCssTransform(t$36$35effectiveTransform$35get()));
          return t$36605$;
        })();
      } else {
        _engine.SemanticsObject._clearSemanticElementTransform(this.element);
      }
      if (containerElement != null) {
        if (!hasZeroRectOffset || this.verticalContainerAdjustment !== 0.0 || this.horizontalContainerAdjustment !== 0.0) {
          let translateX = -dart.notNull(dart.nullCheck(this[_rect]).left) + dart.notNull(this.horizontalContainerAdjustment);
          let translateY = -dart.notNull(dart.nullCheck(this[_rect]).top) + dart.notNull(this.verticalContainerAdjustment);
          t$36605$0 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), containerElement, "style");
          (() => {
            _engine['DomCSSStyleDeclarationExtension|set#top'](t$36605$0, dart.strSafe(translateY) + "px");
            _engine['DomCSSStyleDeclarationExtension|set#left'](t$36605$0, dart.strSafe(translateX) + "px");
            return t$36605$0;
          })();
        } else {
          _engine.SemanticsObject._clearSemanticElementTransform(containerElement);
        }
      }
    }
    static _clearSemanticElementTransform(element) {
      let t$36605, t$36605$, t$36605$0;
      if (element == null) dart.nullFailed(I[340], 1827, 57, "element");
      t$36605 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|removeProperty'](t$36605, "transform-origin");
        _engine['DomCSSStyleDeclarationExtension|removeProperty'](t$36605, "transform");
        return t$36605;
      })();
      if (dart.test(_engine.isMacOrIOS)) {
        t$36605$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#top'](t$36605$, "0px");
          _engine['DomCSSStyleDeclarationExtension|set#left'](t$36605$, "0px");
          return t$36605$;
        })();
      } else {
        t$36605$0 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|removeProperty'](t$36605$0, "top");
          _engine['DomCSSStyleDeclarationExtension|removeProperty'](t$36605$0, "left");
          return t$36605$0;
        })();
      }
    }
    [_debugVisitRenderedSemanticNodesDepthFirst](callback) {
      let t$36605;
      if (callback == null) dart.nullFailed(I[340], 1851, 82, "callback");
      callback(this);
      t$36605 = this[_currentChildrenInRenderOrder];
      t$36605 == null ? null : t$36605[$forEach](dart.fn(child => {
        if (child == null) dart.nullFailed(I[340], 1853, 61, "child");
        child[_debugVisitRenderedSemanticNodesDepthFirst](callback);
      }, T$12.SemanticsObjectTovoid()));
    }
    visitDepthFirstInTraversalOrder(callback) {
      if (callback == null) dart.nullFailed(I[340], 1865, 71, "callback");
      this[_visitDepthFirstInTraversalOrder](callback);
    }
    [_visitDepthFirstInTraversalOrder](callback) {
      if (callback == null) dart.nullFailed(I[340], 1869, 72, "callback");
      let shouldContinueVisiting = callback(this);
      if (!dart.test(shouldContinueVisiting)) {
        return false;
      }
      let childrenInTraversalOrder = this[_childrenInTraversalOrder];
      if (childrenInTraversalOrder == null) {
        return true;
      }
      for (let childId of childrenInTraversalOrder) {
        let child = this.owner[_semanticsTree][$_get](childId);
        if (!(child != null)) dart.assertFailed("visitDepthFirstInTraversalOrder must only be called after the node " + "tree has been established. However, child #" + dart.str(childId) + " does not have its " + "SemanticsNode created at the time this method was called.", I[340], 1886, 9, "child != null");
        if (!dart.test(dart.nullCheck(child)[_visitDepthFirstInTraversalOrder](callback))) {
          return false;
        }
      }
      return true;
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        let children = this[_childrenInTraversalOrder] != null && dart.test(dart.nullCheck(this[_childrenInTraversalOrder])[$isNotEmpty]) ? "[" + dart.str(dart.nullCheck(this[_childrenInTraversalOrder])[$join](", ")) + "]" : "<empty>";
        result = dart.str(dart.runtimeType(this)) + "(#" + dart.str(this.id) + ", children: " + children + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[340], 1903, 12, "() {\n      final String children = _childrenInTraversalOrder != null &&\n              _childrenInTraversalOrder!.isNotEmpty\n          ? '[${_childrenInTraversalOrder!.join(', ')}]'\n          : '<empty>';\n      result = '$runtimeType(#$id, children: $children)';\n      return true;\n    }()");
      return result;
    }
    dispose() {
      let t$36605;
      if (!!dart.test(this[_isDisposed])) dart.assertFailed(null, I[340], 1917, 12, "!_isDisposed");
      this[_isDisposed] = true;
      this.element.remove();
      this[_parent$0] = null;
      t$36605 = this.primaryRole;
      t$36605 == null ? null : t$36605.dispose();
      this.primaryRole = null;
    }
  };
  (_engine.SemanticsObject.new = function(id, owner) {
    if (id == null) dart.nullFailed(I[340], 773, 24, "id");
    if (owner == null) dart.nullFailed(I[340], 773, 33, "owner");
    this[_flags] = 0;
    this[_actions] = null;
    this[_textSelectionBase] = null;
    this[_textSelectionExtent] = null;
    this[_scrollChildren] = null;
    this[_scrollIndex] = null;
    this[_scrollPosition] = null;
    this[_scrollExtentMax] = null;
    this[_scrollExtentMin] = null;
    this[_rect] = null;
    this[_label] = null;
    this[_labelAttributes] = null;
    this[_hint] = null;
    this[_hintAttributes] = null;
    this[_value$5] = null;
    this[_valueAttributes] = null;
    this[_increasedValue] = null;
    this[_increasedValueAttributes] = null;
    this[_decreasedValue] = null;
    this[_decreasedValueAttributes] = null;
    this[_textDirection$] = null;
    this[_transform$] = null;
    this[_childrenInTraversalOrder] = null;
    this[_childrenInHitTestOrder] = null;
    this[_additionalActions] = null;
    this[_tooltip] = null;
    this[_platformViewId] = -1;
    this[_headingLevel] = 0;
    this[_identifier] = null;
    this[_dirtyFields] = -1;
    this[_childContainerElement] = null;
    this[_parent$0] = null;
    this[_currentChildrenInRenderOrder] = null;
    this[primaryRole] = null;
    this[verticalContainerAdjustment] = 0.0;
    this[horizontalContainerAdjustment] = 0.0;
    this[_isDisposed] = false;
    this[id$4] = id;
    this[owner$1] = owner;
    ;
  }).prototype = _engine.SemanticsObject.prototype;
  dart.addRtiResources(_engine.SemanticsObject, ["_engine|SemanticsObject"]);
  dart.setMethodSignature(_engine.SemanticsObject, () => dart.global.Object.setPrototypeOf({
    [_markFlagsDirty]: T$.VoidTovoid(),
    [_markActionsDirty]: T$.VoidTovoid(),
    [_markTextSelectionBaseDirty]: T$.VoidTovoid(),
    [_markTextSelectionExtentDirty]: T$.VoidTovoid(),
    [_markScrollChildrenDirty]: T$.VoidTovoid(),
    [_markScrollIndexDirty]: T$.VoidTovoid(),
    [_markScrollPositionDirty]: T$.VoidTovoid(),
    [_markScrollExtentMaxDirty]: T$.VoidTovoid(),
    [_markScrollExtentMinDirty]: T$.VoidTovoid(),
    [_markRectDirty]: T$.VoidTovoid(),
    [_markLabelDirty]: T$.VoidTovoid(),
    [_markHintDirty]: T$.VoidTovoid(),
    [_markValueDirty]: T$.VoidTovoid(),
    [_markIncreasedValueDirty]: T$.VoidTovoid(),
    [_markDecreasedValueDirty]: T$.VoidTovoid(),
    [_markTextDirectionDirty]: T$.VoidTovoid(),
    [_markTransformDirty]: T$.VoidTovoid(),
    [_markChildrenInTraversalOrderDirty]: T$.VoidTovoid(),
    [_markChildrenInHitTestOrderDirty]: T$.VoidTovoid(),
    [_markAdditionalActionsDirty]: T$.VoidTovoid(),
    [_markTooltipDirty]: T$.VoidTovoid(),
    [_markPlatformViewIdDirty]: T$.VoidTovoid(),
    [_markHeadingLevelDirty]: T$.VoidTovoid(),
    [_markIdentifierDirty]: T$.VoidTovoid(),
    [_isDirty]: T$.intTobool(),
    getOrCreateChildContainer: T$12.VoidToDomElementN(),
    hasFlag: T$12.SemanticsFlagTobool(),
    hasAction: T$12.SemanticsActionTobool(),
    enabledState: T$12.VoidToEnabledState(),
    updateSelf: T$12.SemanticsNodeUpdateTovoid(),
    updateChildren: T$.VoidTovoid(),
    [_getPrimaryRoleIdentifier]: T$12.VoidToPrimaryRole(),
    [_createPrimaryRole]: T$12.PrimaryRoleToPrimaryRoleManager(),
    [_updateRoles]: T$.VoidTovoid(),
    recomputePositionAndSize: T$.VoidTovoid(),
    [_debugVisitRenderedSemanticNodesDepthFirst]: T$12.FnTovoid$45(),
    visitDepthFirstInTraversalOrder: T$12.FnTovoid$46(),
    [_visitDepthFirstInTraversalOrder]: T$12.FnTobool$4(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SemanticsObject))));
  dart.setStaticMethodSignature(_engine.SemanticsObject, () => ['_clearSemanticElementTransform']);
  dart.setGetterSignature(_engine.SemanticsObject, () => dart.global.Object.setPrototypeOf({
    flags: T$.int(),
    isFlagsDirty: T$.bool(),
    actions: T$.intN(),
    isActionsDirty: T$.bool(),
    textSelectionBase: T$.intN(),
    isTextSelectionBaseDirty: T$.bool(),
    textSelectionExtent: T$.intN(),
    isTextSelectionExtentDirty: T$.bool(),
    scrollChildren: T$.intN(),
    isScrollChildrenDirty: T$.bool(),
    scrollIndex: T$.intN(),
    isScrollIndexDirty: T$.bool(),
    scrollPosition: T$9.doubleN(),
    isScrollPositionDirty: T$.bool(),
    scrollExtentMax: T$9.doubleN(),
    isScrollExtentMaxDirty: T$.bool(),
    scrollExtentMin: T$9.doubleN(),
    isScrollExtentMinDirty: T$.bool(),
    rect: T$9.RectN$1(),
    isRectDirty: T$.bool(),
    label: T$.StringN(),
    labelAttributes: T$12.ListNOfStringAttribute(),
    hasLabel: T$.bool(),
    isLabelDirty: T$.bool(),
    hint: T$.StringN(),
    hintAttributes: T$12.ListNOfStringAttribute(),
    isHintDirty: T$.bool(),
    value: T$.StringN(),
    valueAttributes: T$12.ListNOfStringAttribute(),
    hasValue: T$.bool(),
    isValueDirty: T$.bool(),
    increasedValue: T$.StringN(),
    increasedValueAttributes: T$12.ListNOfStringAttribute(),
    isIncreasedValueDirty: T$.bool(),
    decreasedValue: T$.StringN(),
    decreasedValueAttributes: T$12.ListNOfStringAttribute(),
    isDecreasedValueDirty: T$.bool(),
    textDirection: T$10.TextDirectionN(),
    isTextDirectionDirty: T$.bool(),
    transform: T$5.Float32ListN(),
    isTransformDirty: T$.bool(),
    childrenInTraversalOrder: T$11.Int32ListN(),
    isChildrenInTraversalOrderDirty: T$.bool(),
    childrenInHitTestOrder: T$11.Int32ListN(),
    isChildrenInHitTestOrderDirty: T$.bool(),
    additionalActions: T$11.Int32ListN(),
    isAdditionalActionsDirty: T$.bool(),
    tooltip: T$.StringN(),
    hasTooltip: T$.bool(),
    isTooltipDirty: T$.bool(),
    platformViewId: T$.int(),
    isPlatformView: T$.bool(),
    isPlatformViewIdDirty: T$.bool(),
    headingLevel: T$.int(),
    isHeadingLevelDirty: T$.bool(),
    identifier: T$.StringN(),
    hasIdentifier: T$.bool(),
    isIdentifierDirty: T$.bool(),
    element: T$9.DomElement(),
    parent: T$12.SemanticsObjectN(),
    isFocusable: T$.bool(),
    hasFocus: T$.bool(),
    hasEnabledState: T$.bool(),
    isEnabled: T$.bool(),
    isVerticalScrollContainer: T$.bool(),
    isHorizontalScrollContainer: T$.bool(),
    isScrollContainer: T$.bool(),
    hasChildren: T$.bool(),
    isTextField: T$.bool(),
    isHeading: T$.bool(),
    isLink: T$.bool(),
    isLiveRegion: T$.bool(),
    isVisualOnly: T$.bool(),
    scopesRoute: T$.bool(),
    namesRoute: T$.bool(),
    isIncrementable: T$.bool(),
    isButton: T$.bool(),
    isTappable: T$.bool(),
    isCheckable: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SemanticsObject))));
  dart.setLibraryUri(_engine.SemanticsObject, I[220]);
  dart.setFieldSignature(_engine.SemanticsObject, () => dart.global.Object.setPrototypeOf({
    [_flags]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_actions]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_textSelectionBase]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_textSelectionExtent]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_scrollChildren]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_scrollIndex]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_scrollPosition]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_scrollExtentMax]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_scrollExtentMin]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_rect]: {type: T$9.RectN$1(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_label]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_labelAttributes]: {type: T$12.ListNOfStringAttribute(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_hint]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_hintAttributes]: {type: T$12.ListNOfStringAttribute(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_value$5]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_valueAttributes]: {type: T$12.ListNOfStringAttribute(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_increasedValue]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_increasedValueAttributes]: {type: T$12.ListNOfStringAttribute(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_decreasedValue]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_decreasedValueAttributes]: {type: T$12.ListNOfStringAttribute(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_textDirection$]: {type: T$10.TextDirectionN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_transform$]: {type: T$5.Float32ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_childrenInTraversalOrder]: {type: T$11.Int32ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_childrenInHitTestOrder]: {type: T$11.Int32ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_additionalActions]: {type: T$11.Int32ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_tooltip]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_platformViewId]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_headingLevel]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_identifier]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    id: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    owner: {type: T$12.EngineSemanticsOwner(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_dirtyFields]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_childContainerElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_parent$0]: {type: T$12.SemanticsObjectN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_currentChildrenInRenderOrder]: {type: T$12.ListNOfSemanticsObject(), isConst: false, isFinal: false, libraryUri: I[11]},
    primaryRole: {type: T$12.PrimaryRoleManagerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    verticalContainerAdjustment: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    horizontalContainerAdjustment: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isDisposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SemanticsObject))));
  dart.setStaticFieldSignature(_engine.SemanticsObject, () => ['_flagsIndex', '_actionsIndex', '_textSelectionBaseIndex', '_textSelectionExtentIndex', '_scrollChildrenIndex', '_scrollIndexIndex', '_scrollPositionIndex', '_scrollExtentMaxIndex', '_scrollExtentMinIndex', '_rectIndex', '_labelIndex', '_hintIndex', '_valueIndex', '_increasedValueIndex', '_decreasedValueIndex', '_textDirectionIndex', '_transformIndex', '_childrenInTraversalOrderIndex', '_childrenInHitTestOrderIndex', '_additionalActionsIndex', '_tooltipIndex', '_platformViewIdIndex', '_headingLevelIndex', '_identifierIndex']);
  dart.defineExtensionMethods(_engine.SemanticsObject, ['toString']);
  dart.defineLazy(_engine.SemanticsObject, {
    /*_engine.SemanticsObject._flagsIndex*/get _flagsIndex() {
      return 1;
    },
    /*_engine.SemanticsObject._actionsIndex*/get _actionsIndex() {
      return 2;
    },
    /*_engine.SemanticsObject._textSelectionBaseIndex*/get _textSelectionBaseIndex() {
      return 4;
    },
    /*_engine.SemanticsObject._textSelectionExtentIndex*/get _textSelectionExtentIndex() {
      return 8;
    },
    /*_engine.SemanticsObject._scrollChildrenIndex*/get _scrollChildrenIndex() {
      return 16;
    },
    /*_engine.SemanticsObject._scrollIndexIndex*/get _scrollIndexIndex() {
      return 32;
    },
    /*_engine.SemanticsObject._scrollPositionIndex*/get _scrollPositionIndex() {
      return 64;
    },
    /*_engine.SemanticsObject._scrollExtentMaxIndex*/get _scrollExtentMaxIndex() {
      return 128;
    },
    /*_engine.SemanticsObject._scrollExtentMinIndex*/get _scrollExtentMinIndex() {
      return 256;
    },
    /*_engine.SemanticsObject._rectIndex*/get _rectIndex() {
      return 512;
    },
    /*_engine.SemanticsObject._labelIndex*/get _labelIndex() {
      return 1024;
    },
    /*_engine.SemanticsObject._hintIndex*/get _hintIndex() {
      return 2048;
    },
    /*_engine.SemanticsObject._valueIndex*/get _valueIndex() {
      return 4096;
    },
    /*_engine.SemanticsObject._increasedValueIndex*/get _increasedValueIndex() {
      return 8192;
    },
    /*_engine.SemanticsObject._decreasedValueIndex*/get _decreasedValueIndex() {
      return 16384;
    },
    /*_engine.SemanticsObject._textDirectionIndex*/get _textDirectionIndex() {
      return 32768;
    },
    /*_engine.SemanticsObject._transformIndex*/get _transformIndex() {
      return 65536;
    },
    /*_engine.SemanticsObject._childrenInTraversalOrderIndex*/get _childrenInTraversalOrderIndex() {
      return 524288;
    },
    /*_engine.SemanticsObject._childrenInHitTestOrderIndex*/get _childrenInHitTestOrderIndex() {
      return 1048576;
    },
    /*_engine.SemanticsObject._additionalActionsIndex*/get _additionalActionsIndex() {
      return 2097152;
    },
    /*_engine.SemanticsObject._tooltipIndex*/get _tooltipIndex() {
      return 4194304;
    },
    /*_engine.SemanticsObject._platformViewIdIndex*/get _platformViewIdIndex() {
      return 8388608;
    },
    /*_engine.SemanticsObject._headingLevelIndex*/get _headingLevelIndex() {
      return 16777216;
    },
    /*_engine.SemanticsObject._identifierIndex*/get _identifierIndex() {
      return 33554432;
    }
  }, false);
  _engine.AccessibilityMode = class AccessibilityMode extends core._Enum {
    [_enumToString]() {
      return "AccessibilityMode." + dart.str(this[_name$]);
    }
  };
  (_engine.AccessibilityMode.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[340], 1928, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[340], 1928, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.AccessibilityMode).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.AccessibilityMode.prototype;
  dart.addRtiResources(_engine.AccessibilityMode, ["_engine|AccessibilityMode"]);
  dart.setMethodSignature(_engine.AccessibilityMode, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.AccessibilityMode))));
  dart.setLibraryUri(_engine.AccessibilityMode, I[220]);
  dart.setStaticFieldSignature(_engine.AccessibilityMode, () => ['values', 'unknown', 'known']);
  dart.defineLazy(_engine.AccessibilityMode, {
    /*_engine.AccessibilityMode.values*/get values() {
      return C[957] || CT.C957;
    },
    /*_engine.AccessibilityMode.unknown*/get unknown() {
      return C[958] || CT.C958;
    },
    /*_engine.AccessibilityMode.known*/get known() {
      return C[959] || CT.C959;
    }
  }, false);
  _engine.GestureMode = class GestureMode extends core._Enum {
    [_enumToString]() {
      return "GestureMode." + dart.str(this[_name$]);
    }
  };
  (_engine.GestureMode.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[340], 1945, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[340], 1945, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.GestureMode).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.GestureMode.prototype;
  dart.addRtiResources(_engine.GestureMode, ["_engine|GestureMode"]);
  dart.setMethodSignature(_engine.GestureMode, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.GestureMode))));
  dart.setLibraryUri(_engine.GestureMode, I[220]);
  dart.setStaticFieldSignature(_engine.GestureMode, () => ['values', 'pointerEvents', 'browserGestures']);
  dart.defineLazy(_engine.GestureMode, {
    /*_engine.GestureMode.values*/get values() {
      return C[960] || CT.C960;
    },
    /*_engine.GestureMode.pointerEvents*/get pointerEvents() {
      return C[933] || CT.C933;
    },
    /*_engine.GestureMode.browserGestures*/get browserGestures() {
      return C[932] || CT.C932;
    }
  }, false);
  _engine.SemanticsUpdatePhase = class SemanticsUpdatePhase extends core._Enum {
    [_enumToString]() {
      return "SemanticsUpdatePhase." + dart.str(this[_name$]);
    }
  };
  (_engine.SemanticsUpdatePhase.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[340], 1956, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[340], 1956, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.SemanticsUpdatePhase).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.SemanticsUpdatePhase.prototype;
  dart.addRtiResources(_engine.SemanticsUpdatePhase, ["_engine|SemanticsUpdatePhase"]);
  dart.setMethodSignature(_engine.SemanticsUpdatePhase, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SemanticsUpdatePhase))));
  dart.setLibraryUri(_engine.SemanticsUpdatePhase, I[220]);
  dart.setStaticFieldSignature(_engine.SemanticsUpdatePhase, () => ['values', 'idle', 'updating', 'postUpdate']);
  dart.defineLazy(_engine.SemanticsUpdatePhase, {
    /*_engine.SemanticsUpdatePhase.values*/get values() {
      return C[961] || CT.C961;
    },
    /*_engine.SemanticsUpdatePhase.idle*/get idle() {
      return C[962] || CT.C962;
    },
    /*_engine.SemanticsUpdatePhase.updating*/get updating() {
      return C[963] || CT.C963;
    },
    /*_engine.SemanticsUpdatePhase.postUpdate*/get postUpdate() {
      return C[964] || CT.C964;
    }
  }, false);
  var accessibilityAnnouncements = dart.privateName(_engine, "EngineSemantics.accessibilityAnnouncements");
  var semanticsHelper = dart.privateName(_engine, "EngineSemantics.semanticsHelper");
  var mode = dart.privateName(_engine, "EngineSemantics.mode");
  var _semanticsEnabled = dart.privateName(_engine, "_semanticsEnabled");
  var _now = dart.privateName(_engine, "_now");
  var _gestureMode = dart.privateName(_engine, "_gestureMode");
  var _gestureModeClock = dart.privateName(_engine, "_gestureModeClock");
  var _gestureModeListeners = dart.privateName(_engine, "_gestureModeListeners");
  var _notifyGestureModeListeners = dart.privateName(_engine, "_notifyGestureModeListeners");
  var _getGestureModeClock = dart.privateName(_engine, "_getGestureModeClock");
  var _temporarilyDisableBrowserGestureMode = dart.privateName(_engine, "_temporarilyDisableBrowserGestureMode");
  _engine.EngineSemantics = class EngineSemantics extends core.Object {
    get accessibilityAnnouncements() {
      return this[accessibilityAnnouncements];
    }
    set accessibilityAnnouncements(value) {
      super.accessibilityAnnouncements = value;
    }
    get semanticsHelper() {
      return this[semanticsHelper];
    }
    set semanticsHelper(value) {
      super.semanticsHelper = value;
    }
    get mode() {
      return this[mode];
    }
    set mode(value) {
      if (value == null) dart.nullFailed(I[340], 2104, 21, "mode");
      this[mode] = value;
    }
    static ['_#_#tearOff']() {
      return new _engine.EngineSemantics.__();
    }
    static get instance() {
      let t$36611;
      t$36611 = _engine.EngineSemantics._instance;
      return t$36611 == null ? _engine.EngineSemantics._instance = new _engine.EngineSemantics.__() : t$36611;
    }
    static _initializeAccessibilityAnnouncementHost() {
      let host = _engine.createDomElement("flt-announcement-host");
      dart.nullCheck(js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body")).append(host);
      return host;
    }
    static debugResetSemantics() {
      if (_engine.EngineSemantics._instance == null) {
        return;
      }
      dart.nullCheck(_engine.EngineSemantics._instance).semanticsEnabled = false;
      _engine.EngineSemantics._instance = null;
    }
    get semanticsEnabled() {
      return this[_semanticsEnabled];
    }
    set semanticsEnabled(value) {
      let t$36611;
      if (value == null) dart.nullFailed(I[340], 2029, 29, "value");
      if (value == this[_semanticsEnabled]) {
        return;
      }
      let original = T$11.EngineAccessibilityFeatures()[_as](_engine.EnginePlatformDispatcher.instance.configuration.accessibilityFeatures);
      let newConfiguration = _engine.EnginePlatformDispatcher.instance.configuration.copyWith({accessibilityFeatures: original.copyWith({accessibleNavigation: value})});
      _engine.EnginePlatformDispatcher.instance.configuration = newConfiguration;
      this[_semanticsEnabled] = value;
      if (!dart.test(this[_semanticsEnabled])) {
        if (this[_gestureMode] != _engine.GestureMode.pointerEvents) {
          this[_gestureMode] = _engine.GestureMode.pointerEvents;
          this[_notifyGestureModeListeners]();
        }
        for (let view of _engine.EnginePlatformDispatcher.instance.views) {
          view.semantics.reset();
        }
        t$36611 = this[_gestureModeClock];
        t$36611 == null ? null : t$36611.datetime = null;
      }
      _engine.EnginePlatformDispatcher.instance.updateSemanticsEnabled(this[_semanticsEnabled]);
    }
    didReceiveSemanticsUpdate() {
      if (!dart.test(this[_semanticsEnabled])) {
        if (dart.test(ui_web.debugEmulateFlutterTesterEnvironment)) {
          return;
        } else {
          this.semanticsHelper.dispose();
          this.semanticsEnabled = true;
        }
      }
    }
    debugOverrideTimestampFunction(value) {
      if (value == null) dart.nullFailed(I[340], 2090, 57, "value");
      this[_now] = value;
    }
    debugResetTimestampFunction() {
      this[_now] = dart.fn(() => new core.DateTime.now(), T$2.VoidToDateTime());
    }
    get gestureMode() {
      return this[_gestureMode];
    }
    [_getGestureModeClock]() {
      if (this[_gestureModeClock] == null) {
        this[_gestureModeClock] = new _engine.AlarmClock.new(this[_now]);
        dart.nullCheck(this[_gestureModeClock]).callback = dart.fn(() => {
          if (this[_gestureMode] == _engine.GestureMode.browserGestures) {
            return;
          }
          this[_gestureMode] = _engine.GestureMode.browserGestures;
          this[_notifyGestureModeListeners]();
        }, T$.VoidTovoid());
      }
      return this[_gestureModeClock];
    }
    [_temporarilyDisableBrowserGestureMode]() {
      let kDebounceThreshold = C[965] || CT.C965;
      dart.nullCheck(this[_getGestureModeClock]()).datetime = this[_now]().add(kDebounceThreshold);
      if (this[_gestureMode] != _engine.GestureMode.pointerEvents) {
        this[_gestureMode] = _engine.GestureMode.pointerEvents;
        this[_notifyGestureModeListeners]();
      }
    }
    receiveGlobalEvent(event) {
      if (event == null) dart.nullFailed(I[340], 2176, 36, "event");
      let pointerEventTypes = C[966] || CT.C966;
      if (dart.test(pointerEventTypes[$contains](_engine['DomEventExtension|get#type'](event)))) {
        this[_temporarilyDisableBrowserGestureMode]();
      }
      return this.semanticsHelper.shouldEnableSemantics(event);
    }
    addGestureModeListener(callback) {
      if (callback == null) dart.nullFailed(I[340], 2217, 51, "callback");
      this[_gestureModeListeners][$add](callback);
    }
    removeGestureModeListener(callback) {
      if (callback == null) dart.nullFailed(I[340], 2225, 54, "callback");
      if (!dart.test(this[_gestureModeListeners][$contains](callback))) dart.assertFailed(null, I[340], 2226, 12, "_gestureModeListeners.contains(callback)");
      this[_gestureModeListeners][$remove](callback);
    }
    [_notifyGestureModeListeners]() {
      for (let i = 0; i < dart.notNull(this[_gestureModeListeners][$length]); i = i + 1) {
        this[_gestureModeListeners][$_get](i)(this[_gestureMode]);
      }
    }
    shouldAcceptBrowserGesture(eventType) {
      if (eventType == null) dart.nullFailed(I[340], 2246, 42, "eventType");
      if (this.mode == _engine.AccessibilityMode.known) {
        return this.semanticsEnabled;
      }
      let pointerDebouncedGestures = C[967] || CT.C967;
      if (dart.test(pointerDebouncedGestures[$contains](eventType))) {
        return this[_gestureMode] == _engine.GestureMode.browserGestures;
      }
      return false;
    }
  };
  (_engine.EngineSemantics.__ = function() {
    this[accessibilityAnnouncements] = _engine.AccessibilityAnnouncements.new({hostElement: _engine.EngineSemantics._initializeAccessibilityAnnouncementHost()});
    this[_semanticsEnabled] = false;
    this[_now] = dart.fn(() => new core.DateTime.now(), T$2.VoidToDateTime());
    this[semanticsHelper] = new _engine.SemanticsHelper.new();
    this[mode] = _engine.AccessibilityMode.unknown;
    this[_gestureMode] = _engine.GestureMode.browserGestures;
    this[_gestureModeClock] = null;
    this[_gestureModeListeners] = G$.JSArrayOfGestureModeTovoid().of([]);
    ;
  }).prototype = _engine.EngineSemantics.prototype;
  dart.addRtiResources(_engine.EngineSemantics, ["_engine|EngineSemantics"]);
  dart.setMethodSignature(_engine.EngineSemantics, () => dart.global.Object.setPrototypeOf({
    didReceiveSemanticsUpdate: T$.VoidTovoid(),
    debugOverrideTimestampFunction: T$12.FnTovoid$47(),
    debugResetTimestampFunction: T$.VoidTovoid(),
    [_getGestureModeClock]: T$12.VoidToAlarmClockN(),
    [_temporarilyDisableBrowserGestureMode]: T$.VoidTovoid(),
    receiveGlobalEvent: T$11.DomEventTobool(),
    addGestureModeListener: T$12.FnTovoid$48(),
    removeGestureModeListener: T$12.FnTovoid$48(),
    [_notifyGestureModeListeners]: T$.VoidTovoid(),
    shouldAcceptBrowserGesture: T$.StringTobool()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineSemantics))));
  dart.setStaticMethodSignature(_engine.EngineSemantics, () => ['_initializeAccessibilityAnnouncementHost', 'debugResetSemantics']);
  dart.setGetterSignature(_engine.EngineSemantics, () => dart.global.Object.setPrototypeOf({
    semanticsEnabled: T$.bool(),
    gestureMode: T$12.GestureMode()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineSemantics))));
  dart.setSetterSignature(_engine.EngineSemantics, () => dart.global.Object.setPrototypeOf({semanticsEnabled: T$.bool()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.EngineSemantics))));
  dart.setStaticGetterSignature(_engine.EngineSemantics, () => ['instance']);
  dart.setLibraryUri(_engine.EngineSemantics, I[220]);
  dart.setFieldSignature(_engine.EngineSemantics, () => dart.global.Object.setPrototypeOf({
    accessibilityAnnouncements: {type: T$12.AccessibilityAnnouncements(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_semanticsEnabled]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_now]: {type: T$2.VoidToDateTime(), isConst: false, isFinal: false},
    semanticsHelper: {type: T$12.SemanticsHelper(), isConst: false, isFinal: true, libraryUri: I[220]},
    mode: {type: T$12.AccessibilityMode(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_gestureMode]: {type: T$12.GestureMode(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_gestureModeClock]: {type: T$12.AlarmClockN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_gestureModeListeners]: {type: T$12.ListOfGestureModeTovoid(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineSemantics))));
  dart.setStaticFieldSignature(_engine.EngineSemantics, () => ['_instance', 'announcementsHostTagName']);
  dart.defineLazy(_engine.EngineSemantics, {
    /*_engine.EngineSemantics._instance*/get _instance() {
      return null;
    },
    set _instance(value) {},
    /*_engine.EngineSemantics.announcementsHostTagName*/get announcementsHostTagName() {
      return "flt-announcement-host";
    }
  }, false);
  var semanticsHost$ = dart.privateName(_engine, "EngineSemanticsOwner.semanticsHost");
  var _rootSemanticsElement = dart.privateName(_engine, "_rootSemanticsElement");
  var _phase = dart.privateName(_engine, "_phase");
  var _attachments = dart.privateName(_engine, "_attachments");
  var _detachments = dart.privateName(_engine, "_detachments");
  var _oneTimePostUpdateCallbacks = dart.privateName(_engine, "_oneTimePostUpdateCallbacks");
  var _hasNodeRequestingFocus = dart.privateName(_engine, "_hasNodeRequestingFocus");
  var _finalizeTree = dart.privateName(_engine, "_finalizeTree");
  var _computeNodeMapConsistencyMessage = dart.privateName(_engine, "_computeNodeMapConsistencyMessage");
  _engine.EngineSemanticsOwner = class EngineSemanticsOwner extends core.Object {
    get semanticsHost() {
      return this[semanticsHost$];
    }
    set semanticsHost(value) {
      super.semanticsHost = value;
    }
    static ['_#new#tearOff'](semanticsHost) {
      if (semanticsHost == null) dart.nullFailed(I[340], 2268, 29, "semanticsHost");
      return new _engine.EngineSemanticsOwner.new(semanticsHost);
    }
    get rootSemanticsElement() {
      return this[_rootSemanticsElement];
    }
    get phase() {
      return this[_phase];
    }
    [_attachObject](opts) {
      let parent = opts && 'parent' in opts ? opts.parent : null;
      if (parent == null) dart.nullFailed(I[340], 2307, 48, "parent");
      let child = opts && 'child' in opts ? opts.child : null;
      if (child == null) dart.nullFailed(I[340], 2307, 81, "child");
      child[_parent$0] = parent;
      this[_attachments][$_set](child.id, parent);
    }
    [_detachObject](id) {
      if (id == null) dart.nullFailed(I[340], 2323, 26, "id");
      let object = this[_semanticsTree][$_get](id);
      if (!(object != null)) dart.assertFailed(null, I[340], 2325, 12, "object != null");
      if (object != null) {
        this[_detachments][$add](object);
      }
    }
    addOneTimePostUpdateCallback(callback) {
      if (callback == null) dart.nullFailed(I[340], 2339, 53, "callback");
      this[_oneTimePostUpdateCallbacks][$add](callback);
    }
    [_finalizeTree]() {
      let removals = G$.LinkedHashSetOfSemanticsObject().new();
      for (let detachmentRoot of this[_detachments]) {
        detachmentRoot.visitDepthFirstInTraversalOrder(dart.fn(node => {
          if (node == null) dart.nullFailed(I[340], 2354, 71, "node");
          let parent = this[_attachments][$_get](node.id);
          if (parent == null) {
            removals.add(node);
          } else {
            if (!dart.equals(node[_parent$0], parent)) dart.assertFailed(null, I[340], 2360, 18, "node._parent == parent");
            if (!dart.equals(js_util.getProperty(T$9.DomNodeN(), node.element, "parentNode"), parent[_childContainerElement])) dart.assertFailed(null, I[340], 2361, 18, "node.element.parentNode == parent._childContainerElement");
          }
          return true;
        }, T$12.SemanticsObjectTobool()));
      }
      for (let removal of removals) {
        this[_semanticsTree][$remove](removal.id);
        removal.dispose();
      }
      this[_detachments] = G$.JSArrayOfSemanticsObject().of([]);
      this[_attachments] = new (G$.IdentityMapOfint$SemanticsObject()).new();
      this[_phase] = _engine.SemanticsUpdatePhase.postUpdate;
      try {
        if (dart.test(this[_oneTimePostUpdateCallbacks][$isNotEmpty])) {
          for (let callback of this[_oneTimePostUpdateCallbacks]) {
            callback();
          }
          this[_oneTimePostUpdateCallbacks] = G$.JSArrayOfVoidTovoid().of([]);
        }
      } finally {
        this[_phase] = _engine.SemanticsUpdatePhase.idle;
      }
      this[_hasNodeRequestingFocus] = false;
    }
    get debugSemanticsTree() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_semanticsTree];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[340], 2394, 12, "() {\n      result = _semanticsTree;\n      return true;\n    }()");
      return result;
    }
    getOrCreateObject(id) {
      if (id == null) dart.nullFailed(I[340], 2403, 41, "id");
      let object = this[_semanticsTree][$_get](id);
      if (object == null) {
        object = new _engine.SemanticsObject.new(id, this);
        this[_semanticsTree][$_set](id, object);
      }
      return object;
    }
    [_computeNodeMapConsistencyMessage]() {
      let liveIds = new (G$.IdentityMapOfint$ListOfint()).new();
      let root = this[_semanticsTree][$_get](0);
      if (root != null) {
        root[_debugVisitRenderedSemanticNodesDepthFirst](dart.fn(child => {
          let t$36611, t$36611$;
          if (child == null) dart.nullFailed(I[340], 2420, 72, "child");
          liveIds[$_set](child.id, (t$36611$ = (t$36611 = child[_childrenInTraversalOrder], t$36611 == null ? null : t$36611[$toList]()), t$36611$ == null ? C[134] || CT.C134 : t$36611$));
        }, T$12.SemanticsObjectTovoid()));
      }
      let isConsistent = this[_semanticsTree][$keys][$every](dart.bind(liveIds[$keys], $contains));
      let heading = "The semantics node map is " + (dart.test(isConsistent) ? "consistent" : "inconsistent");
      let message = new core.StringBuffer.new(heading + ":\n");
      message.writeln("  Nodes in tree:");
      for (let entry of liveIds[$entries]) {
        message.writeln("    " + dart.str(entry.key) + ": " + dart.str(entry.value));
      }
      message.writeln("  Nodes in map: [" + dart.str(this[_semanticsTree][$keys][$join](", ")) + "]");
      return dart.recordLiteral("2;", 2, void 0, [isConsistent, dart.toString(message)]);
    }
    updateSemantics(uiUpdate) {
      if (uiUpdate == null) dart.nullFailed(I[340], 2438, 43, "uiUpdate");
      _engine.EngineSemantics.instance.didReceiveSemanticsUpdate();
      if (!dart.test(_engine.EngineSemantics.instance.semanticsEnabled)) {
        return;
      }
      let preUpdateNodeMapConsistency = null;
      if (!dart.test(dart.fn(() => {
        preUpdateNodeMapConsistency = this[_computeNodeMapConsistencyMessage]();
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[340], 2446, 12, "() {\n      preUpdateNodeMapConsistency = _computeNodeMapConsistencyMessage();\n      return true;\n    }()");
      this[_phase] = _engine.SemanticsUpdatePhase.updating;
      let update = T$12.SemanticsUpdate()[_as](uiUpdate);
      let nodeUpdates = dart.nullCheck(update[_nodeUpdates$]);
      for (let nodeUpdate of nodeUpdates) {
        let object = this.getOrCreateObject(nodeUpdate.id);
        object.updateSelf(nodeUpdate);
      }
      for (let nodeUpdate of nodeUpdates) {
        let object = dart.nullCheck(this[_semanticsTree][$_get](nodeUpdate.id));
        object.updateChildren();
        object[_dirtyFields] = 0;
      }
      let root = dart.nullCheck(this[_semanticsTree][$_get](0));
      if (this[_rootSemanticsElement] == null) {
        this[_rootSemanticsElement] = root.element;
        this.semanticsHost.append(root.element);
      }
      this[_finalizeTree]();
      if (!dart.test(dart.fn(() => {
        let t$36616;
        let isConsistent = null;
        let description = null;
        {
          let t$36$350$350 = this[_computeNodeMapConsistencyMessage]();
          let t$36$350$351 = null;
          let t$36$350$351$35isSet = false;
          let t$36$350$352 = null;
          let t$36$350$352$35isSet = false;
          if (!(typeof (t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1)) == 'boolean' && (isConsistent = t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1), true) && typeof (t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2)) == 'string' && (description = t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2), true))) dart.throw(new core.StateError.new("Pattern matching error"));
        }
        if (!dart.test(isConsistent)) {
          dart.throw(new core.StateError.new("Semantics node map was inconsistent after update:\n\nBEFORE: " + dart.str((t$36616 = preUpdateNodeMapConsistency, t$36616 == null ? null : t$36616.$2)) + "\n\nAFTER: " + dart.str(description) + "\n"));
        }
        this[_semanticsTree][$forEach](dart.fn((id, object) => {
          if (object == null) dart.nullFailed(I[340], 2498, 56, "object");
          if (!(id == object.id)) dart.assertFailed(null, I[340], 2499, 16, "id == object.id");
          if (!(object[_dirtyFields] === 0)) dart.assertFailed(null, I[340], 2502, 16, "object._dirtyFields == 0");
          if (!(object[_childContainerElement] == null || dart.test(object.hasChildren))) dart.assertFailed(null, I[340], 2505, 16, "object._childContainerElement == null || object.hasChildren");
          if (object[_childrenInTraversalOrder] != null) {
            for (let childId of dart.nullCheck(object[_childrenInTraversalOrder])) {
              let child = this[_semanticsTree][$_get](childId);
              if (child == null) {
                dart.throw(new core.AssertionError.new("Child #" + dart.str(childId) + " is missing in the tree."));
              }
              if (child[_parent$0] == null) {
                dart.throw(new core.AssertionError.new("Child #" + dart.str(childId) + " of parent #" + dart.str(object.id) + " has null parent " + "reference."));
              }
              if (child[_parent$0] != object) {
                dart.throw(new core.AssertionError.new("Parent #" + dart.str(object.id) + " has child #" + dart.str(childId) + ". However, the " + "child is attached to #" + dart.str(dart.nullCheck(child[_parent$0]).id) + "."));
              }
            }
          }
        }, T$12.intNAndSemanticsObjectTovoid()));
        for (let update of nodeUpdates) {
          if (!dart.test(this[_semanticsTree][$containsKey](update.id))) dart.assertFailed(null, I[340], 2532, 16, "_semanticsTree.containsKey(update.id)");
        }
        if (!(update[_nodeUpdates$] === nodeUpdates)) dart.assertFailed(null, I[340], 2536, 14, "identical(update._nodeUpdates, nodeUpdates)");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[340], 2479, 12, "() {\n      // Validate that the node map only contains live elements, i.e. descendants\n      // of the root node. If a node is not reachable from the root, it should\n      // have been removed from the map.\n      final (bool isConsistent, String description) = _computeNodeMapConsistencyMessage();\n      if (!isConsistent) {\n        // Use StateError because AssertionError escapes line breaks, but this\n        // error message is very detailed and it needs line breaks for\n        // legibility.\n        throw StateError('''\nSemantics node map was inconsistent after update:\n\nBEFORE: ${preUpdateNodeMapConsistency?.$2}\n\nAFTER: $description\n''');\n      }\n\n      // Validate that each node in the final tree is self-consistent.\n      _semanticsTree.forEach((int? id, SemanticsObject object) {\n        assert(id == object.id);\n\n        // Dirty fields should be cleared after the tree has been finalized.\n        assert(object._dirtyFields == 0);\n\n        // Make sure a child container is created only when there are children.\n        assert(object._childContainerElement == null || object.hasChildren);\n\n        // Ensure child ID list is consistent with the parent-child\n        // relationship of the semantics tree.\n        if (object._childrenInTraversalOrder != null) {\n          for (final int childId in object._childrenInTraversalOrder!) {\n            final SemanticsObject? child = _semanticsTree[childId];\n            if (child == null) {\n              throw AssertionError('Child #$childId is missing in the tree.');\n            }\n            if (child._parent == null) {\n              throw AssertionError(\n                  'Child #$childId of parent #${object.id} has null parent '\n                  'reference.');\n            }\n            if (!identical(child._parent, object)) {\n              throw AssertionError(\n                  'Parent #${object.id} has child #$childId. However, the '\n                  'child is attached to #${child._parent!.id}.');\n            }\n          }\n        }\n      });\n\n      // Validate that all updates were applied\n      for (final SemanticsNodeUpdate update in nodeUpdates) {\n        // Node was added to the tree.\n        assert(_semanticsTree.containsKey(update.id));\n      }\n\n      // Verify that `update._nodeUpdates` has not changed.\n      assert(identical(update._nodeUpdates, nodeUpdates));\n\n      return true;\n    }()");
    }
    reset() {
      let t$36616;
      let keys = this[_semanticsTree][$keys][$toList]();
      let len = keys[$length];
      for (let i = 0; i < dart.notNull(len); i = i + 1) {
        this[_detachObject](keys[$_get](i));
      }
      this[_finalizeTree]();
      t$36616 = this[_rootSemanticsElement];
      t$36616 == null ? null : t$36616.remove();
      this[_rootSemanticsElement] = null;
      this[_semanticsTree][$clear]();
      this[_attachments][$clear]();
      this[_detachments][$clear]();
      this[_phase] = _engine.SemanticsUpdatePhase.idle;
      this[_oneTimePostUpdateCallbacks][$clear]();
    }
    get hasNodeRequestingFocus() {
      return this[_hasNodeRequestingFocus];
    }
    willRequestFocus() {
      this[_hasNodeRequestingFocus] = true;
    }
  };
  (_engine.EngineSemanticsOwner.new = function(semanticsHost) {
    if (semanticsHost == null) dart.nullFailed(I[340], 2268, 29, "semanticsHost");
    this[_rootSemanticsElement] = null;
    this[_phase] = _engine.SemanticsUpdatePhase.idle;
    this[_semanticsTree] = new (G$.IdentityMapOfint$SemanticsObject()).new();
    this[_attachments] = new (G$.IdentityMapOfint$SemanticsObject()).new();
    this[_detachments] = G$.JSArrayOfSemanticsObject().of([]);
    this[_oneTimePostUpdateCallbacks] = G$.JSArrayOfVoidTovoid().of([]);
    this[_hasNodeRequestingFocus] = false;
    this[semanticsHost$] = semanticsHost;
    _engine.registerHotRestartListener(dart.fn(() => {
      let t$36611;
      t$36611 = this[_rootSemanticsElement];
      t$36611 == null ? null : t$36611.remove();
    }, T$.VoidTovoid()));
  }).prototype = _engine.EngineSemanticsOwner.prototype;
  dart.addRtiResources(_engine.EngineSemanticsOwner, ["_engine|EngineSemanticsOwner"]);
  dart.setMethodSignature(_engine.EngineSemanticsOwner, () => dart.global.Object.setPrototypeOf({
    [_attachObject]: T$12.__Tovoid$21(),
    [_detachObject]: T$.intTovoid(),
    addOneTimePostUpdateCallback: T$1.FnTovoid$18(),
    [_finalizeTree]: T$.VoidTovoid(),
    getOrCreateObject: T$12.intToSemanticsObject(),
    [_computeNodeMapConsistencyMessage]: T$12.VoidToRec(),
    updateSemantics: T$9.SemanticsUpdateTovoid(),
    reset: T$.VoidTovoid(),
    willRequestFocus: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineSemanticsOwner))));
  dart.setGetterSignature(_engine.EngineSemanticsOwner, () => dart.global.Object.setPrototypeOf({
    rootSemanticsElement: T$9.DomElementN(),
    phase: T$12.SemanticsUpdatePhase(),
    debugSemanticsTree: T$12.MapNOfint$SemanticsObject(),
    hasNodeRequestingFocus: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineSemanticsOwner))));
  dart.setLibraryUri(_engine.EngineSemanticsOwner, I[220]);
  dart.setFieldSignature(_engine.EngineSemanticsOwner, () => dart.global.Object.setPrototypeOf({
    semanticsHost: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_rootSemanticsElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_phase]: {type: T$12.SemanticsUpdatePhase(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_semanticsTree]: {type: T$12.MapOfint$SemanticsObject(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_attachments]: {type: T$12.MapOfint$SemanticsObject(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_detachments]: {type: T$12.ListOfSemanticsObject(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_oneTimePostUpdateCallbacks]: {type: T$12.ListOfVoidTovoid(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_hasNodeRequestingFocus]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineSemanticsOwner))));
  _engine.EnabledState = class EnabledState extends core._Enum {
    [_enumToString]() {
      return "EnabledState." + dart.str(this[_name$]);
    }
  };
  (_engine.EnabledState.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[340], 2641, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[340], 2641, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.EnabledState).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.EnabledState.prototype;
  dart.addRtiResources(_engine.EnabledState, ["_engine|EnabledState"]);
  dart.setMethodSignature(_engine.EnabledState, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EnabledState))));
  dart.setLibraryUri(_engine.EnabledState, I[220]);
  dart.setStaticFieldSignature(_engine.EnabledState, () => ['values', 'noOpinion', 'enabled', 'disabled']);
  dart.defineLazy(_engine.EnabledState, {
    /*_engine.EnabledState.values*/get values() {
      return C[968] || CT.C968;
    },
    /*_engine.EnabledState.noOpinion*/get noOpinion() {
      return C[969] || CT.C969;
    },
    /*_engine.EnabledState.enabled*/get enabled() {
      return C[970] || CT.C970;
    },
    /*_engine.EnabledState.disabled*/get disabled() {
      return C[971] || CT.C971;
    }
  }, false);
  var _semanticsEnabler = dart.privateName(_engine, "_semanticsEnabler");
  _engine.SemanticsHelper = class SemanticsHelper extends core.Object {
    set semanticsEnabler(semanticsEnabler) {
      if (semanticsEnabler == null) dart.nullFailed(I[351], 46, 41, "semanticsEnabler");
      this[_semanticsEnabler] = semanticsEnabler;
    }
    shouldEnableSemantics(event) {
      if (event == null) dart.nullFailed(I[351], 50, 39, "event");
      return this[_semanticsEnabler].shouldEnableSemantics(event);
    }
    prepareAccessibilityPlaceholder() {
      return this[_semanticsEnabler].prepareAccessibilityPlaceholder();
    }
    dispose() {
      this[_semanticsEnabler].dispose();
    }
    static ['_#new#tearOff']() {
      return new _engine.SemanticsHelper.new();
    }
  };
  (_engine.SemanticsHelper.new = function() {
    this[_semanticsEnabler] = dart.test(ui_web.browser.isDesktop) ? new _engine.DesktopSemanticsEnabler.new() : new _engine.MobileSemanticsEnabler.new();
    ;
  }).prototype = _engine.SemanticsHelper.prototype;
  dart.addRtiResources(_engine.SemanticsHelper, ["_engine|SemanticsHelper"]);
  dart.setMethodSignature(_engine.SemanticsHelper, () => dart.global.Object.setPrototypeOf({
    shouldEnableSemantics: T$11.DomEventTobool(),
    prepareAccessibilityPlaceholder: T$10.VoidToDomElement(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SemanticsHelper))));
  dart.setSetterSignature(_engine.SemanticsHelper, () => dart.global.Object.setPrototypeOf({semanticsEnabler: T$12.SemanticsEnabler()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.SemanticsHelper))));
  dart.setLibraryUri(_engine.SemanticsHelper, I[220]);
  dart.setFieldSignature(_engine.SemanticsHelper, () => dart.global.Object.setPrototypeOf({[_semanticsEnabler]: {type: T$12.SemanticsEnabler(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SemanticsHelper))));
  _engine.SemanticsEnabler = class SemanticsEnabler extends core.Object {
    shouldEnableSemantics(event) {
      if (event == null) dart.nullFailed(I[351], 77, 39, "event");
      if (!dart.test(this.isWaitingToEnableSemantics)) {
        return true;
      } else {
        return this.tryEnableSemantics(event);
      }
    }
  };
  (_engine.SemanticsEnabler.new = function() {
    ;
  }).prototype = _engine.SemanticsEnabler.prototype;
  dart.addRtiResources(_engine.SemanticsEnabler, ["_engine|SemanticsEnabler"]);
  dart.setMethodSignature(_engine.SemanticsEnabler, () => dart.global.Object.setPrototypeOf({shouldEnableSemantics: T$11.DomEventTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SemanticsEnabler))));
  dart.setLibraryUri(_engine.SemanticsEnabler, I[220]);
  var _semanticsPlaceholder = dart.privateName(_engine, "_semanticsPlaceholder");
  _engine.DesktopSemanticsEnabler = class DesktopSemanticsEnabler extends _engine.SemanticsEnabler {
    get isWaitingToEnableSemantics() {
      return this[_semanticsPlaceholder] != null;
    }
    tryEnableSemantics(event) {
      if (event == null) dart.nullFailed(I[351], 130, 36, "event");
      if (!dart.test(this.isWaitingToEnableSemantics)) {
        return true;
      }
      if (dart.test(_engine.EngineSemantics.instance.semanticsEnabled)) {
        return true;
      }
      let kInterestingEventTypes = C[972] || CT.C972;
      if (!dart.test(kInterestingEventTypes.contains(_engine['DomEventExtension|get#type'](event)))) {
        return true;
      }
      let enableConditionPassed = dart.equals(js_util.getProperty(T$10.DomEventTargetN(), event, "target"), this[_semanticsPlaceholder]);
      if (!enableConditionPassed) {
        return true;
      }
      _engine.EngineSemantics.instance.semanticsEnabled = true;
      this.dispose();
      return false;
    }
    prepareAccessibilityPlaceholder() {
      let t$36618, t$36618$;
      let placeholder = this[_semanticsPlaceholder] = _engine.createDomElement("flt-semantics-placeholder");
      _engine['DomEventTargetExtension|addEventListener'](placeholder, "click", _engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[351], 179, 76, "event");
        this.tryEnableSemantics(event);
      }, T$10.DomEventTovoid())), true);
      t$36618 = placeholder;
      (() => {
        _engine['DomElementExtension|setAttribute'](t$36618, "role", "button");
        _engine['DomElementExtension|setAttribute'](t$36618, "aria-live", "polite");
        _engine['DomElementExtension|setAttribute'](t$36618, "tabindex", "0");
        _engine['DomElementExtension|setAttribute'](t$36618, "aria-label", _engine.placeholderMessage);
        return t$36618;
      })();
      t$36618$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), placeholder, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36618$, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36618$, "-1px");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36618$, "-1px");
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36618$, "1px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36618$, "1px");
        return t$36618$;
      })();
      return placeholder;
    }
    dispose() {
      let t$36618;
      t$36618 = this[_semanticsPlaceholder];
      t$36618 == null ? null : t$36618.remove();
      this[_semanticsPlaceholder] = null;
    }
    static ['_#new#tearOff']() {
      return new _engine.DesktopSemanticsEnabler.new();
    }
  };
  (_engine.DesktopSemanticsEnabler.new = function() {
    this[_semanticsPlaceholder] = null;
    ;
  }).prototype = _engine.DesktopSemanticsEnabler.prototype;
  dart.addRtiResources(_engine.DesktopSemanticsEnabler, ["_engine|DesktopSemanticsEnabler"]);
  dart.setMethodSignature(_engine.DesktopSemanticsEnabler, () => dart.global.Object.setPrototypeOf({
    tryEnableSemantics: T$11.DomEventTobool(),
    prepareAccessibilityPlaceholder: T$10.VoidToDomElement(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DesktopSemanticsEnabler))));
  dart.setGetterSignature(_engine.DesktopSemanticsEnabler, () => dart.global.Object.setPrototypeOf({isWaitingToEnableSemantics: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.DesktopSemanticsEnabler))));
  dart.setLibraryUri(_engine.DesktopSemanticsEnabler, I[220]);
  dart.setFieldSignature(_engine.DesktopSemanticsEnabler, () => dart.global.Object.setPrototypeOf({[_semanticsPlaceholder]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DesktopSemanticsEnabler))));
  var semanticsActivationTimer = dart.privateName(_engine, "MobileSemanticsEnabler.semanticsActivationTimer");
  var semanticsActivationAttempts = dart.privateName(_engine, "MobileSemanticsEnabler.semanticsActivationAttempts");
  var _schedulePlaceholderRemoval = dart.privateName(_engine, "_schedulePlaceholderRemoval");
  _engine.MobileSemanticsEnabler = class MobileSemanticsEnabler extends _engine.SemanticsEnabler {
    get semanticsActivationTimer() {
      return this[semanticsActivationTimer];
    }
    set semanticsActivationTimer(value) {
      this[semanticsActivationTimer] = value;
    }
    get semanticsActivationAttempts() {
      return this[semanticsActivationAttempts];
    }
    set semanticsActivationAttempts(value) {
      if (value == null) dart.nullFailed(I[351], 230, 7, "semanticsActivationAttempts");
      this[semanticsActivationAttempts] = value;
    }
    get isWaitingToEnableSemantics() {
      return this[_semanticsPlaceholder] != null;
    }
    tryEnableSemantics(event) {
      if (event == null) dart.nullFailed(I[351], 247, 36, "event");
      if (!dart.test(this.isWaitingToEnableSemantics)) {
        return true;
      }
      if (dart.test(this[_schedulePlaceholderRemoval])) {
        let removeNow = ui_web.browser.browserEngine != ui_web.BrowserEngine.webkit || _engine['DomEventExtension|get#type'](event) === "touchend" || _engine['DomEventExtension|get#type'](event) === "pointerup" || _engine['DomEventExtension|get#type'](event) === "click";
        if (removeNow) {
          this.dispose();
        }
        return true;
      }
      if (dart.test(_engine.EngineSemantics.instance.semanticsEnabled)) {
        return true;
      }
      this.semanticsActivationAttempts = dart.notNull(this.semanticsActivationAttempts) + 1;
      if (dart.notNull(this.semanticsActivationAttempts) >= 20) {
        this[_schedulePlaceholderRemoval] = true;
        return true;
      }
      let kInterestingEventTypes = C[973] || CT.C973;
      if (!dart.test(kInterestingEventTypes.contains(_engine['DomEventExtension|get#type'](event)))) {
        return true;
      }
      if (this.semanticsActivationTimer != null) {
        return false;
      }
      let enableConditionPassed = false;
      let activationPoint = null;
      let t$36$35activationPoint$35isSet = false;
      function t$36$35activationPoint$35get() {
        return t$36$35activationPoint$35isSet ? activationPoint : dart.throw(new _internal.LateError.localNI("activationPoint"));
      }
      function t$36$35activationPoint$35set(activationPoint$35param) {
        if (activationPoint$35param == null) dart.nullFailed(I[351], 320, 25, "activationPoint#param");
        if (t$36$35activationPoint$35isSet)
          dart.throw(new _internal.LateError.localAI("activationPoint"));
        else {
          t$36$35activationPoint$35isSet = true;
          return activationPoint = activationPoint$35param;
        }
      }
      switch (_engine['DomEventExtension|get#type'](event)) {
        case "click":
          {
            let click = T$12.DomMouseEvent()[_as](event);
            t$36$35activationPoint$35set(_engine['DomMouseEventExtension|get#offset'](click));
            break;
          }
        case "touchstart":
        case "touchend":
          {
            let touchEvent = T$12.DomTouchEvent()[_as](event);
            t$36$35activationPoint$35set(_engine['DomTouchExtension|get#client'](_engine['DomTouchEventExtension|get#changedTouches'](touchEvent)[$first]));
            break;
          }
        case "pointerdown":
        case "pointerup":
          {
            let touch = T$11.DomPointerEvent()[_as](event);
            t$36$35activationPoint$35set(_engine['DomMouseEventExtension|get#client'](touch));
            break;
          }
        default:
          {
            return true;
          }
      }
      let activatingElementRect = T$12.DomRect()[_as](dart.nullCheck(this[_semanticsPlaceholder]).getBoundingClientRect());
      let midX = dart.notNull(_engine['DomRectReadOnlyExtension|get#left'](activatingElementRect)) + (dart.notNull(_engine['DomRectReadOnlyExtension|get#right'](activatingElementRect)) - dart.notNull(_engine['DomRectReadOnlyExtension|get#left'](activatingElementRect))) / 2;
      let midY = dart.notNull(_engine['DomRectReadOnlyExtension|get#top'](activatingElementRect)) + (dart.notNull(_engine['DomRectReadOnlyExtension|get#bottom'](activatingElementRect)) - dart.notNull(_engine['DomRectReadOnlyExtension|get#top'](activatingElementRect))) / 2;
      let deltaX = t$36$35activationPoint$35get().x[$toDouble]() - midX;
      let deltaY = t$36$35activationPoint$35get().y[$toDouble]() - midY;
      let deltaSquared = deltaX * deltaX + deltaY * deltaY;
      if (deltaSquared < 1.0) {
        enableConditionPassed = true;
      }
      if (enableConditionPassed) {
        if (!(this.semanticsActivationTimer == null)) dart.assertFailed(null, I[351], 353, 14, "semanticsActivationTimer == null");
        this[_schedulePlaceholderRemoval] = true;
        this.semanticsActivationTimer = async.Timer.new(_engine._periodToConsumeEvents, dart.fn(() => {
          this.dispose();
          _engine.EngineSemantics.instance.semanticsEnabled = true;
        }, T$.VoidTovoid()));
        return false;
      }
      return true;
    }
    prepareAccessibilityPlaceholder() {
      let t$36621, t$36621$;
      let placeholder = this[_semanticsPlaceholder] = _engine.createDomElement("flt-semantics-placeholder");
      _engine['DomEventTargetExtension|addEventListener'](placeholder, "click", _engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[351], 373, 76, "event");
        this.tryEnableSemantics(event);
      }, T$10.DomEventTovoid())), true);
      t$36621 = placeholder;
      (() => {
        _engine['DomElementExtension|setAttribute'](t$36621, "role", "button");
        _engine['DomElementExtension|setAttribute'](t$36621, "aria-label", _engine.placeholderMessage);
        return t$36621;
      })();
      t$36621$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), placeholder, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36621$, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36621$, "0");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36621$, "0");
        _engine['DomCSSStyleDeclarationExtension|set#right'](t$36621$, "0");
        _engine['DomCSSStyleDeclarationExtension|set#bottom'](t$36621$, "0");
        return t$36621$;
      })();
      return placeholder;
    }
    dispose() {
      let t$36621;
      t$36621 = this[_semanticsPlaceholder];
      t$36621 == null ? null : t$36621.remove();
      this[_semanticsPlaceholder] = null;
      this.semanticsActivationTimer = null;
    }
    static ['_#new#tearOff']() {
      return new _engine.MobileSemanticsEnabler.new();
    }
  };
  (_engine.MobileSemanticsEnabler.new = function() {
    this[semanticsActivationTimer] = null;
    this[_semanticsPlaceholder] = null;
    this[semanticsActivationAttempts] = 0;
    this[_schedulePlaceholderRemoval] = false;
    ;
  }).prototype = _engine.MobileSemanticsEnabler.prototype;
  dart.addRtiResources(_engine.MobileSemanticsEnabler, ["_engine|MobileSemanticsEnabler"]);
  dart.setMethodSignature(_engine.MobileSemanticsEnabler, () => dart.global.Object.setPrototypeOf({
    tryEnableSemantics: T$11.DomEventTobool(),
    prepareAccessibilityPlaceholder: T$10.VoidToDomElement(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.MobileSemanticsEnabler))));
  dart.setGetterSignature(_engine.MobileSemanticsEnabler, () => dart.global.Object.setPrototypeOf({isWaitingToEnableSemantics: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.MobileSemanticsEnabler))));
  dart.setLibraryUri(_engine.MobileSemanticsEnabler, I[220]);
  dart.setFieldSignature(_engine.MobileSemanticsEnabler, () => dart.global.Object.setPrototypeOf({
    semanticsActivationTimer: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_semanticsPlaceholder]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    semanticsActivationAttempts: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_schedulePlaceholderRemoval]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MobileSemanticsEnabler))));
  _engine.Button = class Button extends _engine.PrimaryRoleManager {
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[352], 9, 26, "semanticsObject");
      return new _engine.Button.new(semanticsObject);
    }
    focusAsRouteDefault() {
      let t$36621, t$36621$;
      t$36621$ = (t$36621 = this.focusable, t$36621 == null ? null : t$36621.focusAsRouteDefault());
      return t$36621$ == null ? false : t$36621$;
    }
    update() {
      super.update();
      if (this.semanticsObject.enabledState() == _engine.EnabledState.disabled) {
        this.setAttribute("aria-disabled", "true");
      } else {
        this.removeAttribute("aria-disabled");
      }
    }
  };
  (_engine.Button.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[352], 9, 26, "semanticsObject");
    dart.global.Object.getPrototypeOf(_engine.Button).withBasics.call(this, _engine.PrimaryRole.button, semanticsObject, {preferredLabelRepresentation: _engine.LabelRepresentation.domText});
    this.addTappable();
    this.setAriaRole("button");
  }).prototype = _engine.Button.prototype;
  dart.addRtiResources(_engine.Button, ["_engine|Button"]);
  dart.setMethodSignature(_engine.Button, () => dart.global.Object.setPrototypeOf({focusAsRouteDefault: T$.VoidTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Button))));
  dart.setLibraryUri(_engine.Button, I[220]);
  var _clickListener = dart.privateName(_engine, "_clickListener");
  var _isListening = dart.privateName(_engine, "_isListening");
  var _updateAttribute = dart.privateName(_engine, "_updateAttribute");
  _engine.Tappable = class Tappable extends _engine.RoleManager {
    static ['_#new#tearOff'](semanticsObject, owner) {
      if (semanticsObject == null) dart.nullFailed(I[352], 40, 28, "semanticsObject");
      if (owner == null) dart.nullFailed(I[352], 40, 64, "owner");
      return new _engine.Tappable.new(semanticsObject, owner);
    }
    update() {
      let wasListening = this[_isListening];
      this[_isListening] = this.semanticsObject.enabledState() != _engine.EnabledState.disabled && dart.test(this.semanticsObject.isTappable);
      if (wasListening != this[_isListening]) {
        this[_updateAttribute]();
      }
    }
    [_updateAttribute]() {
      if (dart.test(this[_isListening])) {
        _engine['DomElementExtension|setAttribute'](this.owner.element, "flt-tappable", "");
      } else {
        _engine['DomElementExtension|removeAttribute'](this.owner.element, "flt-tappable");
      }
    }
    dispose() {
      this.owner.removeEventListener("click", this[_clickListener]);
      this[_clickListener] = null;
      super.dispose();
    }
  };
  (_engine.Tappable.new = function(semanticsObject, owner) {
    if (semanticsObject == null) dart.nullFailed(I[352], 40, 28, "semanticsObject");
    if (owner == null) dart.nullFailed(I[352], 40, 64, "owner");
    this[_clickListener] = null;
    this[_isListening] = false;
    dart.global.Object.getPrototypeOf(_engine.Tappable).new.call(this, _engine.Role.tappable, semanticsObject, owner);
    this[_clickListener] = _engine.createDomEventListener(dart.fn(click => {
      if (click == null) dart.nullFailed(I[352], 42, 55, "click");
      _engine.PointerBinding.clickDebouncer.onClick(click, semanticsObject.id, this[_isListening]);
    }, T$10.DomEventTovoid()));
    _engine['DomEventTargetExtension|addEventListener'](owner.element, "click", this[_clickListener]);
  }).prototype = _engine.Tappable.prototype;
  dart.addRtiResources(_engine.Tappable, ["_engine|Tappable"]);
  dart.setMethodSignature(_engine.Tappable, () => dart.global.Object.setPrototypeOf({
    update: T$.VoidTovoid(),
    [_updateAttribute]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Tappable))));
  dart.setLibraryUri(_engine.Tappable, I[220]);
  dart.setFieldSignature(_engine.Tappable, () => dart.global.Object.setPrototypeOf({
    [_clickListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_isListening]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Tappable))));
  var activeTextField = dart.privateName(_engine, "SemanticsTextEditingStrategy.activeTextField");
  var inputConfig = dart.privateName(_engine, "SemanticsTextEditingStrategy.inputConfig");
  var _queuedStyle = dart.privateName(_engine, "_queuedStyle");
  var _syncStyle = dart.privateName(_engine, "_syncStyle");
  var owner$2 = dart.privateName(_engine, "DefaultTextEditingStrategy.owner");
  var isEnabled = dart.privateName(_engine, "DefaultTextEditingStrategy.isEnabled");
  var domElement = dart.privateName(_engine, "DefaultTextEditingStrategy.domElement");
  var lastEditingState = dart.privateName(_engine, "DefaultTextEditingStrategy.lastEditingState");
  var style$ = dart.privateName(_engine, "DefaultTextEditingStrategy.style");
  var geometry = dart.privateName(_engine, "DefaultTextEditingStrategy.geometry");
  var onChange = dart.privateName(_engine, "DefaultTextEditingStrategy.onChange");
  var onAction = dart.privateName(_engine, "DefaultTextEditingStrategy.onAction");
  var subscriptions = dart.privateName(_engine, "DefaultTextEditingStrategy.subscriptions");
  var __DefaultTextEditingStrategy_inputConfiguration = dart.privateName(_engine, "_#DefaultTextEditingStrategy#inputConfiguration");
  var __DefaultTextEditingStrategy_inputConfiguration_isSet = dart.privateName(_engine, "_#DefaultTextEditingStrategy#inputConfiguration#isSet");
  var _editingDeltaState = dart.privateName(_engine, "_editingDeltaState");
  var _appendedToForm = dart.privateName(_engine, "_appendedToForm");
  var _viewForElement = dart.privateName(_engine, "_viewForElement");
  var _activeDomElementView = dart.privateName(_engine, "_activeDomElementView");
  var _$35CompositionAwareMixin$35_compositionStartListener = dart.privateName(_engine, "CompositionAwareMixin._#CompositionAwareMixin#_compositionStartListener");
  var _$35CompositionAwareMixin$35_compositionStartListener$35isSet = dart.privateName(_engine, "CompositionAwareMixin._#CompositionAwareMixin#_compositionStartListener#isSet");
  var _$35CompositionAwareMixin$35_compositionUpdateListener = dart.privateName(_engine, "CompositionAwareMixin._#CompositionAwareMixin#_compositionUpdateListener");
  var _$35CompositionAwareMixin$35_compositionUpdateListener$35isSet = dart.privateName(_engine, "CompositionAwareMixin._#CompositionAwareMixin#_compositionUpdateListener#isSet");
  var _$35CompositionAwareMixin$35_compositionEndListener = dart.privateName(_engine, "CompositionAwareMixin._#CompositionAwareMixin#_compositionEndListener");
  var _$35CompositionAwareMixin$35_compositionEndListener$35isSet = dart.privateName(_engine, "CompositionAwareMixin._#CompositionAwareMixin#_compositionEndListener#isSet");
  var composingText = dart.privateName(_engine, "CompositionAwareMixin.composingText");
  var __CompositionAwareMixin__compositionStartListener = dart.privateName(_engine, "_#CompositionAwareMixin#_compositionStartListener");
  var __CompositionAwareMixin__compositionStartListener_isSet = dart.privateName(_engine, "_#CompositionAwareMixin#_compositionStartListener#isSet");
  var __CompositionAwareMixin__compositionUpdateListener = dart.privateName(_engine, "_#CompositionAwareMixin#_compositionUpdateListener");
  var __CompositionAwareMixin__compositionUpdateListener_isSet = dart.privateName(_engine, "_#CompositionAwareMixin#_compositionUpdateListener#isSet");
  var __CompositionAwareMixin__compositionEndListener = dart.privateName(_engine, "_#CompositionAwareMixin#_compositionEndListener");
  var __CompositionAwareMixin__compositionEndListener_isSet = dart.privateName(_engine, "_#CompositionAwareMixin#_compositionEndListener#isSet");
  var _handleCompositionStart = dart.privateName(_engine, "_handleCompositionStart");
  var _compositionStartListener = dart.privateName(_engine, "_compositionStartListener");
  var _handleCompositionUpdate = dart.privateName(_engine, "_handleCompositionUpdate");
  var _compositionUpdateListener = dart.privateName(_engine, "_compositionUpdateListener");
  var _handleCompositionEnd = dart.privateName(_engine, "_handleCompositionEnd");
  var _compositionEndListener = dart.privateName(_engine, "_compositionEndListener");
  _engine.CompositionAwareMixin = class CompositionAwareMixin extends core.Object {};
  _engine.CompositionAwareMixin[dart.mixinOn] = Object => class CompositionAwareMixin extends Object {
    get [__CompositionAwareMixin__compositionStartListener]() {
      return this[_$35CompositionAwareMixin$35_compositionStartListener];
    }
    set [__CompositionAwareMixin__compositionStartListener](value) {
      this[_$35CompositionAwareMixin$35_compositionStartListener] = value;
    }
    get [__CompositionAwareMixin__compositionStartListener_isSet]() {
      return this[_$35CompositionAwareMixin$35_compositionStartListener$35isSet];
    }
    set [__CompositionAwareMixin__compositionStartListener_isSet](value) {
      if (value == null) dart.nullFailed(I[355], 31, 31, "_#CompositionAwareMixin#_compositionStartListener#isSet");
      this[_$35CompositionAwareMixin$35_compositionStartListener$35isSet] = value;
    }
    get [__CompositionAwareMixin__compositionUpdateListener]() {
      return this[_$35CompositionAwareMixin$35_compositionUpdateListener];
    }
    set [__CompositionAwareMixin__compositionUpdateListener](value) {
      this[_$35CompositionAwareMixin$35_compositionUpdateListener] = value;
    }
    get [__CompositionAwareMixin__compositionUpdateListener_isSet]() {
      return this[_$35CompositionAwareMixin$35_compositionUpdateListener$35isSet];
    }
    set [__CompositionAwareMixin__compositionUpdateListener_isSet](value) {
      if (value == null) dart.nullFailed(I[355], 33, 31, "_#CompositionAwareMixin#_compositionUpdateListener#isSet");
      this[_$35CompositionAwareMixin$35_compositionUpdateListener$35isSet] = value;
    }
    get [__CompositionAwareMixin__compositionEndListener]() {
      return this[_$35CompositionAwareMixin$35_compositionEndListener];
    }
    set [__CompositionAwareMixin__compositionEndListener](value) {
      this[_$35CompositionAwareMixin$35_compositionEndListener] = value;
    }
    get [__CompositionAwareMixin__compositionEndListener_isSet]() {
      return this[_$35CompositionAwareMixin$35_compositionEndListener$35isSet];
    }
    set [__CompositionAwareMixin__compositionEndListener_isSet](value) {
      if (value == null) dart.nullFailed(I[355], 35, 31, "_#CompositionAwareMixin#_compositionEndListener#isSet");
      this[_$35CompositionAwareMixin$35_compositionEndListener$35isSet] = value;
    }
    get composingText() {
      return this[composingText];
    }
    set composingText(value) {
      this[composingText] = value;
    }
    get [_compositionStartListener]() {
      let t$36622;
      if (!dart.test(this[__CompositionAwareMixin__compositionStartListener_isSet])) {
        let t$36621 = _engine.createDomEventListener(dart.bind(this, _handleCompositionStart));
        if (dart.test(this[__CompositionAwareMixin__compositionStartListener_isSet])) dart.throw(new _internal.LateError.fieldADI("_compositionStartListener"));
        this[__CompositionAwareMixin__compositionStartListener] = t$36621;
        this[__CompositionAwareMixin__compositionStartListener_isSet] = true;
      }
      t$36622 = this[__CompositionAwareMixin__compositionStartListener];
      return t$36622;
    }
    get [_compositionUpdateListener]() {
      let t$36623;
      if (!dart.test(this[__CompositionAwareMixin__compositionUpdateListener_isSet])) {
        let t$36622 = _engine.createDomEventListener(dart.bind(this, _handleCompositionUpdate));
        if (dart.test(this[__CompositionAwareMixin__compositionUpdateListener_isSet])) dart.throw(new _internal.LateError.fieldADI("_compositionUpdateListener"));
        this[__CompositionAwareMixin__compositionUpdateListener] = t$36622;
        this[__CompositionAwareMixin__compositionUpdateListener_isSet] = true;
      }
      t$36623 = this[__CompositionAwareMixin__compositionUpdateListener];
      return t$36623;
    }
    get [_compositionEndListener]() {
      let t$36624;
      if (!dart.test(this[__CompositionAwareMixin__compositionEndListener_isSet])) {
        let t$36623 = _engine.createDomEventListener(dart.bind(this, _handleCompositionEnd));
        if (dart.test(this[__CompositionAwareMixin__compositionEndListener_isSet])) dart.throw(new _internal.LateError.fieldADI("_compositionEndListener"));
        this[__CompositionAwareMixin__compositionEndListener] = t$36623;
        this[__CompositionAwareMixin__compositionEndListener_isSet] = true;
      }
      t$36624 = this[__CompositionAwareMixin__compositionEndListener];
      return t$36624;
    }
    addCompositionEventHandlers(domElement) {
      if (domElement == null) dart.nullFailed(I[355], 45, 51, "domElement");
      _engine['DomEventTargetExtension|addEventListener'](domElement, "compositionstart", this[_compositionStartListener]);
      _engine['DomEventTargetExtension|addEventListener'](domElement, "compositionupdate", this[_compositionUpdateListener]);
      _engine['DomEventTargetExtension|addEventListener'](domElement, "compositionend", this[_compositionEndListener]);
    }
    removeCompositionEventHandlers(domElement) {
      if (domElement == null) dart.nullFailed(I[355], 51, 54, "domElement");
      _engine['DomEventTargetExtension|removeEventListener'](domElement, "compositionstart", this[_compositionStartListener]);
      _engine['DomEventTargetExtension|removeEventListener'](domElement, "compositionupdate", this[_compositionUpdateListener]);
      _engine['DomEventTargetExtension|removeEventListener'](domElement, "compositionend", this[_compositionEndListener]);
    }
    [_handleCompositionStart](event) {
      if (event == null) dart.nullFailed(I[355], 57, 43, "event");
      this.composingText = null;
    }
    [_handleCompositionUpdate](event) {
      if (event == null) dart.nullFailed(I[355], 61, 44, "event");
      if (dart.test(_engine.domInstanceOfString(event, "CompositionEvent"))) {
        this.composingText = _engine['DomCompositionEventExtension|get#data'](T$12.DomCompositionEvent()[_as](event));
      }
    }
    [_handleCompositionEnd](event) {
      if (event == null) dart.nullFailed(I[355], 67, 41, "event");
      this.composingText = null;
    }
    determineCompositionState(editingState) {
      if (editingState == null) dart.nullFailed(I[355], 71, 55, "editingState");
      if (editingState.extentOffset == null || this.composingText == null || editingState.text == null) {
        return editingState;
      }
      let composingBase = dart.nullCheck(editingState.extentOffset) - dart.nullCheck(this.composingText).length;
      if (composingBase < 0) {
        return editingState;
      }
      return editingState.copyWith({composingBaseOffset: composingBase, composingExtentOffset: composingBase + dart.nullCheck(this.composingText).length});
    }
  };
  (_engine.CompositionAwareMixin[dart.mixinNew] = function() {
    this[_$35CompositionAwareMixin$35_compositionStartListener] = null;
    this[_$35CompositionAwareMixin$35_compositionStartListener$35isSet] = false;
    this[_$35CompositionAwareMixin$35_compositionUpdateListener] = null;
    this[_$35CompositionAwareMixin$35_compositionUpdateListener$35isSet] = false;
    this[_$35CompositionAwareMixin$35_compositionEndListener] = null;
    this[_$35CompositionAwareMixin$35_compositionEndListener$35isSet] = false;
    this[composingText] = null;
  }).prototype = _engine.CompositionAwareMixin.prototype;
  dart.addRtiResources(_engine.CompositionAwareMixin, ["_engine|CompositionAwareMixin"]);
  dart.setMethodSignature(_engine.CompositionAwareMixin, () => dart.global.Object.setPrototypeOf({
    addCompositionEventHandlers: T$9.DomHTMLElementTovoid(),
    removeCompositionEventHandlers: T$9.DomHTMLElementTovoid(),
    [_handleCompositionStart]: T$10.DomEventTovoid(),
    [_handleCompositionUpdate]: T$10.DomEventTovoid(),
    [_handleCompositionEnd]: T$10.DomEventTovoid(),
    determineCompositionState: T$12.EditingStateToEditingState()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CompositionAwareMixin))));
  dart.setGetterSignature(_engine.CompositionAwareMixin, () => dart.global.Object.setPrototypeOf({
    [_compositionStartListener]: T$9.DomEventListener(),
    [_compositionUpdateListener]: T$9.DomEventListener(),
    [_compositionEndListener]: T$9.DomEventListener()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CompositionAwareMixin))));
  dart.setLibraryUri(_engine.CompositionAwareMixin, I[220]);
  dart.setFieldSignature(_engine.CompositionAwareMixin, () => dart.global.Object.setPrototypeOf({
    [__CompositionAwareMixin__compositionStartListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CompositionAwareMixin__compositionStartListener_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CompositionAwareMixin__compositionUpdateListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CompositionAwareMixin__compositionUpdateListener_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CompositionAwareMixin__compositionEndListener]: {type: T$10.DomEventListenerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CompositionAwareMixin__compositionEndListener_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    composingText: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CompositionAwareMixin))));
  dart.setStaticFieldSignature(_engine.CompositionAwareMixin, () => ['_kCompositionStart', '_kCompositionUpdate', '_kCompositionEnd']);
  dart.defineLazy(_engine.CompositionAwareMixin, {
    /*_engine.CompositionAwareMixin._kCompositionStart*/get _kCompositionStart() {
      return "compositionstart";
    },
    /*_engine.CompositionAwareMixin._kCompositionUpdate*/get _kCompositionUpdate() {
      return "compositionupdate";
    },
    /*_engine.CompositionAwareMixin._kCompositionEnd*/get _kCompositionEnd() {
      return "compositionend";
    }
  }, false);
  const Object_CompositionAwareMixin$36 = class Object_CompositionAwareMixin extends core.Object {};
  (Object_CompositionAwareMixin$36.new = function() {
    _engine.CompositionAwareMixin[dart.mixinNew].call(this);
  }).prototype = Object_CompositionAwareMixin$36.prototype;
  dart.applyMixin(Object_CompositionAwareMixin$36, _engine.CompositionAwareMixin);
  _engine.DefaultTextEditingStrategy = class DefaultTextEditingStrategy extends Object_CompositionAwareMixin$36 {
    get owner() {
      return this[owner$2];
    }
    set owner(value) {
      super.owner = value;
    }
    get isEnabled() {
      return this[isEnabled];
    }
    set isEnabled(value) {
      if (value == null) dart.nullFailed(I[354], 1194, 8, "isEnabled");
      this[isEnabled] = value;
    }
    get domElement() {
      return this[domElement];
    }
    set domElement(value) {
      this[domElement] = value;
    }
    get lastEditingState() {
      return this[lastEditingState];
    }
    set lastEditingState(value) {
      this[lastEditingState] = value;
    }
    get style() {
      return this[style$];
    }
    set style(value) {
      this[style$] = value;
    }
    get geometry() {
      return this[geometry];
    }
    set geometry(value) {
      this[geometry] = value;
    }
    get onChange() {
      return this[onChange];
    }
    set onChange(value) {
      this[onChange] = value;
    }
    get onAction() {
      return this[onAction];
    }
    set onAction(value) {
      this[onAction] = value;
    }
    get subscriptions() {
      return this[subscriptions];
    }
    set subscriptions(value) {
      super.subscriptions = value;
    }
    get activeDomElement() {
      if (!(this.domElement != null)) dart.assertFailed("The DOM element of this text editing strategy is not currently active.", I[354], 1205, 7, "domElement != null");
      return dart.nullCheck(this.domElement);
    }
    get [_activeDomElementView]() {
      return this[_viewForElement](this.activeDomElement);
    }
    [_viewForElement](element) {
      if (element == null) dart.nullFailed(I[354], 1214, 49, "element");
      return _engine.EnginePlatformDispatcher.instance.viewManager.findViewForElement(element);
    }
    get inputConfiguration() {
      let t$36621;
      return dart.test(this[__DefaultTextEditingStrategy_inputConfiguration_isSet]) ? (t$36621 = this[__DefaultTextEditingStrategy_inputConfiguration], t$36621) : dart.throw(new _internal.LateError.fieldNI("inputConfiguration"));
    }
    set inputConfiguration(inputConfiguration$35param) {
      if (inputConfiguration$35param == null) dart.nullFailed(I[354], 1217, 27, "inputConfiguration#param");
      this[__DefaultTextEditingStrategy_inputConfiguration_isSet] = true;
      this[__DefaultTextEditingStrategy_inputConfiguration] = inputConfiguration$35param;
    }
    get editingDeltaState() {
      this[_editingDeltaState] == null ? this[_editingDeltaState] = new _engine.TextEditingDeltaState.new({oldText: dart.nullCheck(dart.nullCheck(this.lastEditingState).text)}) : null;
      return dart.nullCheck(this[_editingDeltaState]);
    }
    get hasAutofillGroup() {
      return this.inputConfiguration.autofillGroup != null;
    }
    get appendedToForm() {
      return this[_appendedToForm];
    }
    get focusedFormElement() {
      let t$36621;
      t$36621 = this.inputConfiguration.autofillGroup;
      return t$36621 == null ? null : t$36621.formElement;
    }
    initializeTextEditing(inputConfig, opts) {
      let t$36621, t$36621$;
      if (inputConfig == null) dart.nullFailed(I[354], 1248, 24, "inputConfig");
      let onChange = opts && 'onChange' in opts ? opts.onChange : null;
      if (onChange == null) dart.nullFailed(I[354], 1249, 31, "onChange");
      let onAction = opts && 'onAction' in opts ? opts.onAction : null;
      if (onAction == null) dart.nullFailed(I[354], 1250, 31, "onAction");
      if (!!dart.test(this.isEnabled)) dart.assertFailed(null, I[354], 1252, 12, "!isEnabled");
      this.domElement = (t$36621 = inputConfig.inputType.createDomElement(), (() => {
        _engine['DomElementExtension|set#tabIndex'](t$36621, -1.0);
        return t$36621;
      })());
      this.applyConfiguration(inputConfig);
      _engine._setStaticStyleAttributes(this.activeDomElement);
      t$36621$ = this.style;
      t$36621$ == null ? null : t$36621$.applyToDomElement(this.activeDomElement);
      if (!dart.test(this.hasAutofillGroup)) {
        _engine._insertEditingElementInView(this.activeDomElement, inputConfig.viewId);
        this[_appendedToForm] = false;
      }
      this.initializeElementPlacement();
      this.isEnabled = true;
      this.onChange = onChange;
      this.onAction = onAction;
    }
    applyConfiguration(config) {
      if (config == null) dart.nullFailed(I[354], 1277, 46, "config");
      this.inputConfiguration = config;
      if (dart.test(config.readOnly)) {
        _engine['DomElementExtension|setAttribute'](this.activeDomElement, "readonly", "readonly");
      } else {
        _engine['DomElementExtension|removeAttribute'](this.activeDomElement, "readonly");
      }
      if (dart.test(config.obscureText)) {
        _engine['DomElementExtension|setAttribute'](this.activeDomElement, "type", "password");
      }
      if (config.inputType.inputmodeAttribute === "none") {
        _engine['DomElementExtension|setAttribute'](this.activeDomElement, "inputmode", "none");
      }
      let action = _engine.EngineInputAction.fromName(config.inputAction);
      action.configureInputAction(this.activeDomElement);
      let autofill = config.autofill;
      if (autofill != null) {
        autofill.applyToDomElement(this.activeDomElement, {focusedElement: true});
      } else {
        _engine['DomElementExtension|setAttribute'](this.activeDomElement, "autocomplete", "off");
        _engine._ensureEditingElementInView(this.activeDomElement, this.inputConfiguration.viewId);
      }
      let autocorrectValue = dart.test(config.autocorrect) ? "on" : "off";
      _engine['DomElementExtension|setAttribute'](this.activeDomElement, "autocorrect", autocorrectValue);
    }
    initializeElementPlacement() {
      this.placeElement();
    }
    addEventHandlers() {
      if (this.inputConfiguration.autofillGroup != null) {
        this.subscriptions[$addAll](dart.nullCheck(this.inputConfiguration.autofillGroup).addInputEventListeners());
      }
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "input", dart.bind(this, 'handleChange')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "keydown", dart.bind(this, 'maybeSendAction')));
      this.subscriptions[$add](new _engine.DomSubscription.new(dart.jsInteropNullCheck(dart.global.document), "selectionchange", dart.bind(this, 'handleChange')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "beforeinput", dart.bind(this, 'handleBeforeInput')));
      if (!T$12.SafariDesktopTextEditingStrategy()[_is](this)) {
        this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "blur", dart.bind(this, 'handleBlur')));
      }
      this.addCompositionEventHandlers(this.activeDomElement);
      this.preventDefaultForMouseEvents();
    }
    updateElementPlacement(textGeometry) {
      let t$36621;
      if (textGeometry == null) dart.nullFailed(I[354], 1348, 52, "textGeometry");
      this.geometry = textGeometry;
      if (dart.test(this.isEnabled)) {
        if (this.composingText != null) {
          t$36621 = this.geometry;
          t$36621 == null ? null : t$36621.applyToDomElement(this.activeDomElement);
        } else {
          this.placeElement();
        }
      }
    }
    updateElementStyle(textStyle) {
      if (textStyle == null) dart.nullFailed(I[354], 1365, 45, "textStyle");
      this.style = textStyle;
      if (dart.test(this.isEnabled)) {
        textStyle.applyToDomElement(this.activeDomElement);
      }
    }
    disable() {
      let t$36621, t$36621$;
      if (!dart.test(this.isEnabled)) dart.assertFailed(null, I[354], 1374, 12, "isEnabled");
      this.isEnabled = false;
      this.lastEditingState = null;
      this[_editingDeltaState] = null;
      this.style = null;
      this.geometry = null;
      for (let i = 0; i < dart.notNull(this.subscriptions[$length]); i = i + 1) {
        this.subscriptions[$_get](i).cancel();
      }
      this.subscriptions[$clear]();
      this.removeCompositionEventHandlers(this.activeDomElement);
      if (dart.test(this[_appendedToForm]) && (t$36621 = this.inputConfiguration.autofillGroup, t$36621 == null ? null : t$36621.formElement) != null) {
        _engine._styleAutofillElements(this.activeDomElement, {isOffScreen: true});
        t$36621$ = this.inputConfiguration.autofillGroup;
        t$36621$ == null ? null : t$36621$.storeForm();
        _engine.DefaultTextEditingStrategy._moveFocusToFlutterView(this.activeDomElement, this[_activeDomElementView]);
      } else {
        _engine.DefaultTextEditingStrategy._moveFocusToFlutterView(this.activeDomElement, this[_activeDomElementView], {removeElement: true});
      }
      this.domElement = null;
    }
    setEditingState(editingState) {
      this.lastEditingState = editingState;
      if (!dart.test(this.isEnabled) || !dart.test(dart.nullCheck(editingState).isValid)) {
        return;
      }
      dart.nullCheck(this.lastEditingState).applyToDomElement(this.domElement);
    }
    placeElement() {
      this.moveFocusToActiveDomElement();
    }
    placeForm() {
      dart.nullCheck(this.inputConfiguration.autofillGroup).placeForm(this.activeDomElement);
      this[_appendedToForm] = true;
    }
    handleChange(event) {
      if (event == null) dart.nullFailed(I[354], 1420, 30, "event");
      if (!dart.test(this.isEnabled)) dart.assertFailed(null, I[354], 1421, 12, "isEnabled");
      let newEditingState = _engine.EditingState.fromDomElement(this.activeDomElement);
      newEditingState = this.determineCompositionState(newEditingState);
      let newTextEditingDeltaState = null;
      if (dart.test(this.inputConfiguration.enableDeltaModel)) {
        this.editingDeltaState.composingOffset = newEditingState.composingBaseOffset;
        this.editingDeltaState.composingExtent = newEditingState.composingExtentOffset;
        newTextEditingDeltaState = _engine.TextEditingDeltaState.inferDeltaState(newEditingState, this.lastEditingState, this.editingDeltaState);
      }
      if (!dart.equals(newEditingState, this.lastEditingState)) {
        this.lastEditingState = newEditingState;
        this[_editingDeltaState] = newTextEditingDeltaState;
        dart.nullCheck(this.onChange)(this.lastEditingState, this[_editingDeltaState]);
      }
      this[_editingDeltaState] = null;
    }
    handleBeforeInput(event) {
      if (event == null) dart.nullFailed(I[354], 1442, 35, "event");
      let eventData = T$.StringN()[_as](_engine.getJsProperty(T$.void(), event, "data"));
      let inputType = T$.StringN()[_as](_engine.getJsProperty(T$.void(), event, "inputType"));
      if (inputType != null) {
        let isSelectionInverted = dart.nullCheck(dart.nullCheck(this.lastEditingState).baseOffset) > dart.nullCheck(dart.nullCheck(this.lastEditingState).extentOffset);
        let deltaOffset = isSelectionInverted ? dart.nullCheck(dart.nullCheck(this.lastEditingState).baseOffset) : dart.nullCheck(dart.nullCheck(this.lastEditingState).extentOffset);
        if (inputType[$contains]("delete")) {
          this.editingDeltaState.deltaText = "";
          this.editingDeltaState.deltaEnd = deltaOffset;
        } else if (inputType === "insertLineBreak") {
          this.editingDeltaState.deltaText = "\n";
          this.editingDeltaState.deltaStart = deltaOffset;
          this.editingDeltaState.deltaEnd = deltaOffset;
        } else if (eventData != null) {
          this.editingDeltaState.deltaText = eventData;
          this.editingDeltaState.deltaStart = deltaOffset;
          this.editingDeltaState.deltaEnd = deltaOffset;
        }
      }
    }
    handleBlur(event) {
      if (event == null) dart.nullFailed(I[354], 1478, 28, "event");
      T$11.DomFocusEvent()[_as](event);
      let willGainFocusElement = T$9.DomElementN()[_as](js_util.getProperty(T$10.DomEventTargetN(), event, "relatedTarget"));
      if (willGainFocusElement == null || dart.equals(this[_viewForElement](willGainFocusElement), this[_activeDomElementView])) {
        this.moveFocusToActiveDomElement();
      }
    }
    maybeSendAction(e) {
      if (e == null) dart.nullFailed(I[354], 1487, 33, "e");
      if (dart.test(_engine.domInstanceOfString(e, "KeyboardEvent"))) {
        let event = T$11.DomKeyboardEvent()[_as](e);
        if (_engine['DomKeyboardEventExtension|get#keyCode'](event) === 13) {
          dart.nullCheck(this.onAction)(this.inputConfiguration.inputAction);
          if (T$12.MultilineInputType()[_is](this.inputConfiguration.inputType) && this.inputConfiguration.inputAction === "TextInputAction.newline") {
            return;
          }
          event.preventDefault();
        }
      }
    }
    enable(inputConfig, opts) {
      if (inputConfig == null) dart.nullFailed(I[354], 1510, 24, "inputConfig");
      let onChange = opts && 'onChange' in opts ? opts.onChange : null;
      if (onChange == null) dart.nullFailed(I[354], 1511, 31, "onChange");
      let onAction = opts && 'onAction' in opts ? opts.onAction : null;
      if (onAction == null) dart.nullFailed(I[354], 1512, 31, "onAction");
      if (!!dart.test(this.isEnabled)) dart.assertFailed(null, I[354], 1514, 12, "!isEnabled");
      this.initializeTextEditing(inputConfig, {onChange: onChange, onAction: onAction});
      this.addEventHandlers();
      if (this.lastEditingState != null) {
        this.setEditingState(this.lastEditingState);
      }
      this.moveFocusToActiveDomElement();
    }
    preventDefaultForMouseEvents() {
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "mousedown", dart.fn(event => {
        if (event == null) dart.nullFailed(I[354], 1538, 66, "event");
        event.preventDefault();
      }, T$10.DomEventTovoid())));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "mouseup", dart.fn(event => {
        if (event == null) dart.nullFailed(I[354], 1543, 64, "event");
        event.preventDefault();
      }, T$10.DomEventTovoid())));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "mousemove", dart.fn(event => {
        if (event == null) dart.nullFailed(I[354], 1548, 66, "event");
        event.preventDefault();
      }, T$10.DomEventTovoid())));
    }
    moveFocusToActiveDomElement() {
      _engine['DomElementExtension|focus'](this.activeDomElement, {preventScroll: true});
    }
    static _moveFocusToFlutterView(element, view, opts) {
      if (element == null) dart.nullFailed(I[354], 1564, 16, "element");
      let removeElement = opts && 'removeElement' in opts ? opts.removeElement : false;
      if (removeElement == null) dart.nullFailed(I[354], 1566, 10, "removeElement");
      async.Timer.new(core.Duration.zero, dart.fn(() => {
        let t$36621;
        if (dart.equals(element, js_util.getProperty(T$9.DomElementN(), dart.jsInteropNullCheck(dart.global.document), "activeElement"))) {
          t$36621 = view;
          t$36621 == null ? null : _engine['DomElementExtension|focus'](t$36621.dom.rootElement, {preventScroll: true});
        }
        if (dart.test(removeElement)) {
          element.remove();
        }
      }, T$.VoidTovoid()));
    }
  };
  (_engine.DefaultTextEditingStrategy.new = function(owner) {
    if (owner == null) dart.nullFailed(I[354], 1190, 35, "owner");
    this[isEnabled] = false;
    this[domElement] = null;
    this[__DefaultTextEditingStrategy_inputConfiguration] = null;
    this[__DefaultTextEditingStrategy_inputConfiguration_isSet] = false;
    this[lastEditingState] = null;
    this[_editingDeltaState] = null;
    this[style$] = null;
    this[geometry] = null;
    this[onChange] = null;
    this[onAction] = null;
    this[subscriptions] = G$.JSArrayOfDomSubscription().of([]);
    this[_appendedToForm] = false;
    this[owner$2] = owner;
    dart.global.Object.getPrototypeOf(_engine.DefaultTextEditingStrategy).new.call(this);
    ;
  }).prototype = _engine.DefaultTextEditingStrategy.prototype;
  dart.addRtiResources(_engine.DefaultTextEditingStrategy, ["_engine|DefaultTextEditingStrategy", "_engine|TextEditingStrategy"]);
  dart.setMethodSignature(_engine.DefaultTextEditingStrategy, () => dart.global.Object.setPrototypeOf({
    [_viewForElement]: T$12.DomElementToEngineFlutterViewN(),
    initializeTextEditing: T$12.InputConfiguration__Tovoid(),
    applyConfiguration: T$12.InputConfigurationTovoid(),
    initializeElementPlacement: T$.VoidTovoid(),
    addEventHandlers: T$.VoidTovoid(),
    updateElementPlacement: T$12.EditableTextGeometryTovoid(),
    updateElementStyle: T$12.EditableTextStyleTovoid(),
    disable: T$.VoidTovoid(),
    setEditingState: T$12.EditingStateNTovoid(),
    placeElement: T$.VoidTovoid(),
    placeForm: T$.VoidTovoid(),
    handleChange: T$10.DomEventTovoid(),
    handleBeforeInput: T$10.DomEventTovoid(),
    handleBlur: T$10.DomEventTovoid(),
    maybeSendAction: T$10.DomEventTovoid(),
    enable: T$12.InputConfiguration__Tovoid(),
    preventDefaultForMouseEvents: T$.VoidTovoid(),
    moveFocusToActiveDomElement: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DefaultTextEditingStrategy))));
  dart.setStaticMethodSignature(_engine.DefaultTextEditingStrategy, () => ['_moveFocusToFlutterView']);
  dart.setGetterSignature(_engine.DefaultTextEditingStrategy, () => dart.global.Object.setPrototypeOf({
    activeDomElement: T$10.DomHTMLElement(),
    [_activeDomElementView]: T$11.EngineFlutterViewN(),
    inputConfiguration: T$12.InputConfiguration(),
    editingDeltaState: T$12.TextEditingDeltaState(),
    hasAutofillGroup: T$.bool(),
    appendedToForm: T$.bool(),
    focusedFormElement: T$12.DomHTMLFormElementN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.DefaultTextEditingStrategy))));
  dart.setSetterSignature(_engine.DefaultTextEditingStrategy, () => dart.global.Object.setPrototypeOf({inputConfiguration: T$12.InputConfiguration()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.DefaultTextEditingStrategy))));
  dart.setLibraryUri(_engine.DefaultTextEditingStrategy, I[220]);
  dart.setFieldSignature(_engine.DefaultTextEditingStrategy, () => dart.global.Object.setPrototypeOf({
    owner: {type: T$12.HybridTextEditing(), isConst: false, isFinal: true, libraryUri: I[220]},
    isEnabled: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    domElement: {type: T$9.DomHTMLElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__DefaultTextEditingStrategy_inputConfiguration]: {type: T$12.InputConfigurationN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__DefaultTextEditingStrategy_inputConfiguration_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    lastEditingState: {type: T$12.EditingStateN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_editingDeltaState]: {type: T$12.TextEditingDeltaStateN(), isConst: false, isFinal: false, libraryUri: I[220]},
    style: {type: T$12.EditableTextStyleN(), isConst: false, isFinal: false, libraryUri: I[220]},
    geometry: {type: T$12.EditableTextGeometryN(), isConst: false, isFinal: false, libraryUri: I[220]},
    onChange: {type: T$12.EditingStateNAndTextEditingDeltaStateNToNvoid(), isConst: false, isFinal: false},
    onAction: {type: T$12.StringNToNvoid(), isConst: false, isFinal: false},
    subscriptions: {type: T$12.ListOfDomSubscription(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_appendedToForm]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DefaultTextEditingStrategy))));
  _engine.SemanticsTextEditingStrategy = class SemanticsTextEditingStrategy extends _engine.DefaultTextEditingStrategy {
    get activeTextField() {
      return this[activeTextField];
    }
    set activeTextField(value) {
      this[activeTextField] = value;
    }
    get inputConfig() {
      return this[inputConfig];
    }
    set inputConfig(value) {
      this[inputConfig] = value;
    }
    static ['_#new#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[353], 21, 38, "owner");
      return new _engine.SemanticsTextEditingStrategy.new(owner);
    }
    static ensureInitialized(owner) {
      let t$36621;
      if (owner == null) dart.nullFailed(I[353], 27, 25, "owner");
      if (_engine.SemanticsTextEditingStrategy._instance != null && dart.equals((t$36621 = _engine.SemanticsTextEditingStrategy._instance, t$36621 == null ? null : t$36621.owner), owner)) {
        return dart.nullCheck(_engine.SemanticsTextEditingStrategy._instance);
      }
      return _engine.SemanticsTextEditingStrategy._instance = new _engine.SemanticsTextEditingStrategy.new(owner);
    }
    static get instance() {
      return dart.nullCheck(_engine.SemanticsTextEditingStrategy._instance);
    }
    enable(inputConfig, opts) {
      if (inputConfig == null) dart.nullFailed(I[353], 51, 24, "inputConfig");
      let onChange = opts && 'onChange' in opts ? opts.onChange : null;
      if (onChange == null) dart.nullFailed(I[353], 52, 31, "onChange");
      let onAction = opts && 'onAction' in opts ? opts.onAction : null;
      if (onAction == null) dart.nullFailed(I[353], 53, 31, "onAction");
      this.inputConfig = inputConfig;
      this.onChange = onChange;
      this.onAction = onAction;
    }
    activate(textField) {
      if (textField == null) dart.nullFailed(I[353], 65, 27, "textField");
      if (!(this.inputConfig != null && this.onChange != null && this.onAction != null)) dart.assertFailed("\"enable\" should be called before \"enableFromSemantics\" and initialize input configuration", I[353], 67, 7, "inputConfig != null && onChange != null && onAction != null");
      if (dart.equals(this.activeTextField, textField)) {
        return;
      } else if (this.activeTextField != null) {
        this.disable();
      }
      this.activeTextField = textField;
      this.domElement = textField.editableElement;
      this[_syncStyle]();
      super.enable(dart.nullCheck(this.inputConfig), {onChange: dart.nullCheck(this.onChange), onAction: dart.nullCheck(this.onAction)});
    }
    deactivate(textField) {
      if (textField == null) dart.nullFailed(I[353], 90, 29, "textField");
      if (dart.equals(this.activeTextField, textField)) {
        this.disable();
      }
    }
    disable() {
      let t$36621;
      if (!dart.test(this.isEnabled)) {
        return;
      }
      this.isEnabled = false;
      this.style = null;
      this.geometry = null;
      for (let i = 0; i < dart.notNull(this.subscriptions[$length]); i = i + 1) {
        this.subscriptions[$_get](i).cancel();
      }
      this.subscriptions[$clear]();
      this.lastEditingState = null;
      t$36621 = this.domElement;
      t$36621 == null ? null : t$36621.blur();
      this.domElement = null;
      this.activeTextField = null;
      this[_queuedStyle] = null;
    }
    addEventHandlers() {
      if (this.inputConfiguration.autofillGroup != null) {
        this.subscriptions[$addAll](dart.nullCheck(this.inputConfiguration.autofillGroup).addInputEventListeners());
      }
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "input", dart.bind(this, 'handleChange')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "keydown", dart.bind(this, 'maybeSendAction')));
      this.subscriptions[$add](new _engine.DomSubscription.new(dart.jsInteropNullCheck(dart.global.document), "selectionchange", dart.bind(this, 'handleChange')));
      this.preventDefaultForMouseEvents();
    }
    initializeTextEditing(inputConfig, opts) {
      if (inputConfig == null) dart.nullFailed(I[353], 145, 49, "inputConfig");
      let onChange = opts && 'onChange' in opts ? opts.onChange : null;
      let onAction = opts && 'onAction' in opts ? opts.onAction : null;
      this.isEnabled = true;
      this.inputConfiguration = inputConfig;
      this.applyConfiguration(inputConfig);
    }
    placeElement() {
      if (dart.test(this.hasAutofillGroup)) {
        this.placeForm();
      }
      _engine['DomElementExtension|focus'](this.activeDomElement);
    }
    initializeElementPlacement() {
    }
    placeForm() {
    }
    updateElementPlacement(textGeometry) {
      if (textGeometry == null) dart.nullFailed(I[353], 171, 52, "textGeometry");
    }
    updateElementStyle(textStyle) {
      if (textStyle == null) dart.nullFailed(I[353], 178, 45, "textStyle");
      this[_queuedStyle] = textStyle;
      this[_syncStyle]();
    }
    [_syncStyle]() {
      if (this[_queuedStyle] == null || this.domElement == null) {
        return;
      }
      super.updateElementStyle(dart.nullCheck(this[_queuedStyle]));
    }
  };
  (_engine.SemanticsTextEditingStrategy.new = function(owner) {
    if (owner == null) dart.nullFailed(I[353], 21, 38, "owner");
    this[activeTextField] = null;
    this[inputConfig] = null;
    this[_queuedStyle] = null;
    dart.global.Object.getPrototypeOf(_engine.SemanticsTextEditingStrategy).new.call(this, owner);
    ;
  }).prototype = _engine.SemanticsTextEditingStrategy.prototype;
  dart.addRtiResources(_engine.SemanticsTextEditingStrategy, ["_engine|SemanticsTextEditingStrategy"]);
  dart.setMethodSignature(_engine.SemanticsTextEditingStrategy, () => dart.global.Object.setPrototypeOf({
    activate: T$12.TextFieldTovoid(),
    deactivate: T$12.TextFieldTovoid(),
    initializeTextEditing: T$12.InputConfiguration__Tovoid$1(),
    [_syncStyle]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.SemanticsTextEditingStrategy))));
  dart.setStaticMethodSignature(_engine.SemanticsTextEditingStrategy, () => ['ensureInitialized']);
  dart.setStaticGetterSignature(_engine.SemanticsTextEditingStrategy, () => ['instance']);
  dart.setLibraryUri(_engine.SemanticsTextEditingStrategy, I[220]);
  dart.setFieldSignature(_engine.SemanticsTextEditingStrategy, () => dart.global.Object.setPrototypeOf({
    activeTextField: {type: T$12.TextFieldN(), isConst: false, isFinal: false, libraryUri: I[220]},
    inputConfig: {type: T$12.InputConfigurationN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_queuedStyle]: {type: T$12.EditableTextStyleN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SemanticsTextEditingStrategy))));
  dart.setStaticFieldSignature(_engine.SemanticsTextEditingStrategy, () => ['_instance']);
  dart.defineLazy(_engine.SemanticsTextEditingStrategy, {
    /*_engine.SemanticsTextEditingStrategy._instance*/get _instance() {
      return null;
    },
    set _instance(value) {}
  }, false);
  var editableElement = dart.privateName(_engine, "TextField.editableElement");
  var _positionInputElementTimer = dart.privateName(_engine, "_positionInputElementTimer");
  var _setupDomElement = dart.privateName(_engine, "_setupDomElement");
  var _initializeEditableElement = dart.privateName(_engine, "_initializeEditableElement");
  var _initializeForBlink = dart.privateName(_engine, "_initializeForBlink");
  var _initializeForWebkit = dart.privateName(_engine, "_initializeForWebkit");
  var _invokeIosWorkaround = dart.privateName(_engine, "_invokeIosWorkaround");
  _engine.TextField = class TextField extends _engine.PrimaryRoleManager {
    get editableElement() {
      return this[editableElement];
    }
    set editableElement(value) {
      this[editableElement] = value;
    }
    static ['_#new#tearOff'](semanticsObject) {
      if (semanticsObject == null) dart.nullFailed(I[353], 205, 29, "semanticsObject");
      return new _engine.TextField.new(semanticsObject);
    }
    get activeEditableElement() {
      if (!(this.editableElement != null)) dart.assertFailed("The textField does not have an active editable element", I[353], 215, 7, "editableElement != null");
      return dart.nullCheck(this.editableElement);
    }
    focusAsRouteDefault() {
      let editableElement = this.editableElement;
      if (editableElement == null) {
        return false;
      }
      _engine['DomElementExtension|focus'](editableElement);
      return true;
    }
    [_initializeEditableElement]() {
      let t$36624, t$36624$;
      if (!(this.editableElement == null)) dart.assertFailed("Editable element has already been initialized", I[353], 247, 12, "editableElement == null");
      this.editableElement = dart.test(this.semanticsObject.hasFlag(ui.SemanticsFlag.isMultiline)) ? _engine.createDomHTMLTextAreaElement() : _engine.createDomHTMLInputElement();
      t$36624 = this.activeEditableElement;
      (() => {
        _engine['DomElementExtension|set#spellcheck'](t$36624, false);
        _engine['DomElementExtension|setAttribute'](t$36624, "autocorrect", "off");
        _engine['DomElementExtension|setAttribute'](t$36624, "autocomplete", "off");
        _engine['DomElementExtension|setAttribute'](t$36624, "data-semantics-role", "text-field");
        return t$36624;
      })();
      t$36624$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.activeEditableElement, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36624$, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36624$, "0");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36624$, "0");
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36624$, dart.str(dart.nullCheck(this.semanticsObject.rect).width) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36624$, dart.str(dart.nullCheck(this.semanticsObject.rect).height) + "px");
        return t$36624$;
      })();
      this.append(this.activeEditableElement);
    }
    [_setupDomElement]() {
      switch (ui_web.browser.browserEngine) {
        case C[810] || CT.C810:
        case C[812] || CT.C812:
          {
            this[_initializeForBlink]();
            break;
          }
        case C[811] || CT.C811:
          {
            this[_initializeForWebkit]();
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
    [_initializeForBlink]() {
      this[_initializeEditableElement]();
      _engine['DomEventTargetExtension|addEventListener'](this.activeEditableElement, "focus", _engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[353], 300, 42, "event");
        if (_engine.EngineSemantics.instance.gestureMode != _engine.GestureMode.browserGestures) {
          return;
        }
        _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(this.semanticsObject.id, ui.SemanticsAction.didGainAccessibilityFocus, null);
      }, T$10.DomEventTovoid())));
      _engine['DomEventTargetExtension|addEventListener'](this.activeEditableElement, "blur", _engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[353], 309, 42, "event");
        if (_engine.EngineSemantics.instance.gestureMode != _engine.GestureMode.browserGestures) {
          return;
        }
        _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(this.semanticsObject.id, ui.SemanticsAction.didLoseAccessibilityFocus, null);
      }, T$10.DomEventTovoid())));
    }
    [_initializeForWebkit]() {
      if (ui_web.browser.operatingSystem == ui_web.OperatingSystem.macOs) {
        this[_initializeForBlink]();
        return;
      }
      this.setAttribute("role", "textbox");
      this.setAttribute("contenteditable", "false");
      this.setAttribute("tabindex", "0");
      let lastPointerDownOffsetX = null;
      let lastPointerDownOffsetY = null;
      this.addEventListener("pointerdown", _engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[353], 349, 42, "event");
        let pointerEvent = T$11.DomPointerEvent()[_as](event);
        lastPointerDownOffsetX = _engine['DomMouseEventExtension|get#clientX'](pointerEvent);
        lastPointerDownOffsetY = _engine['DomMouseEventExtension|get#clientY'](pointerEvent);
      }, T$10.DomEventTovoid())), true);
      this.addEventListener("pointerup", _engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[353], 356, 42, "event");
        let pointerEvent = T$11.DomPointerEvent()[_as](event);
        if (lastPointerDownOffsetX != null) {
          if (!(lastPointerDownOffsetY != null)) dart.assertFailed(null, I[353], 360, 16, "lastPointerDownOffsetY != null");
          let deltaX = dart.notNull(_engine['DomMouseEventExtension|get#clientX'](pointerEvent)) - dart.nullCheck(lastPointerDownOffsetX);
          let deltaY = dart.notNull(_engine['DomMouseEventExtension|get#clientY'](pointerEvent)) - dart.nullCheck(lastPointerDownOffsetY);
          if (deltaX * deltaX + deltaY * deltaY < 324) {
            _engine.EnginePlatformDispatcher.instance.invokeOnSemanticsAction(this.semanticsObject.id, ui.SemanticsAction.tap, null);
            this[_invokeIosWorkaround]();
          }
        } else {
          if (!(lastPointerDownOffsetY == null)) dart.assertFailed(null, I[353], 378, 16, "lastPointerDownOffsetY == null");
        }
        lastPointerDownOffsetX = null;
        lastPointerDownOffsetY = null;
      }, T$10.DomEventTovoid())), true);
    }
    [_invokeIosWorkaround]() {
      let t$36624;
      if (this.editableElement != null) {
        return;
      }
      this[_initializeEditableElement]();
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.activeEditableElement, "style"), "translate(-9999px, -9999px)");
      t$36624 = this[_positionInputElementTimer];
      t$36624 == null ? null : t$36624.cancel();
      this[_positionInputElementTimer] = async.Timer.new(_engine.TextField._delayBeforePlacement, dart.fn(() => {
        let t$36624;
        t$36624 = this.editableElement;
        t$36624 == null ? null : _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36624, "style"), "");
        this[_positionInputElementTimer] = null;
      }, T$.VoidTovoid()));
      _engine['DomElementExtension|focus'](this.activeEditableElement);
      this.removeAttribute("role");
      _engine['DomEventTargetExtension|addEventListener'](this.activeEditableElement, "blur", _engine.createDomEventListener(dart.fn(event => {
        let t$36624;
        if (event == null) dart.nullFailed(I[353], 406, 42, "event");
        this.setAttribute("role", "textbox");
        this.activeEditableElement.remove();
        t$36624 = _engine.SemanticsTextEditingStrategy._instance;
        t$36624 == null ? null : t$36624.deactivate(this);
        _engine['DomElementExtension|focus'](this.element);
        this.editableElement = null;
      }, T$10.DomEventTovoid())));
    }
    update() {
      let t$36624, t$36624$, t$36624$0, t$36624$1;
      super.update();
      if (this.editableElement != null) {
        t$36624 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.activeEditableElement, "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#width'](t$36624, dart.str(dart.nullCheck(this.semanticsObject.rect).width) + "px");
          _engine['DomCSSStyleDeclarationExtension|set#height'](t$36624, dart.str(dart.nullCheck(this.semanticsObject.rect).height) + "px");
          return t$36624;
        })();
        if (dart.test(this.semanticsObject.hasFocus)) {
          if (!dart.equals(js_util.getProperty(T$9.DomElementN(), dart.jsInteropNullCheck(dart.global.document), "activeElement"), this.activeEditableElement)) {
            this.semanticsObject.owner.addOneTimePostUpdateCallback(dart.fn(() => {
              _engine['DomElementExtension|focus'](this.activeEditableElement);
            }, T$.VoidTovoid()));
          }
          t$36624$ = _engine.SemanticsTextEditingStrategy._instance;
          t$36624$ == null ? null : t$36624$.activate(this);
        } else if (dart.equals(js_util.getProperty(T$9.DomElementN(), dart.jsInteropNullCheck(dart.global.document), "activeElement"), this.activeEditableElement)) {
          if (!dart.test(_engine.isIosSafari)) {
            t$36624$0 = _engine.SemanticsTextEditingStrategy._instance;
            t$36624$0 == null ? null : t$36624$0.deactivate(this);
          }
          this.activeEditableElement.blur();
        }
      }
      let element = (t$36624$1 = this.editableElement, t$36624$1 == null ? this.element : t$36624$1);
      if (dart.test(this.semanticsObject.hasLabel)) {
        _engine['DomElementExtension|setAttribute'](element, "aria-label", dart.nullCheck(this.semanticsObject.label));
      } else {
        _engine['DomElementExtension|removeAttribute'](element, "aria-label");
      }
    }
    dispose() {
      let t$36624, t$36624$, t$36624$0;
      super.dispose();
      t$36624 = this[_positionInputElementTimer];
      t$36624 == null ? null : t$36624.cancel();
      this[_positionInputElementTimer] = null;
      if (!dart.test(_engine.isIosSafari)) {
        t$36624$ = this.editableElement;
        t$36624$ == null ? null : t$36624$.remove();
      }
      t$36624$0 = _engine.SemanticsTextEditingStrategy._instance;
      t$36624$0 == null ? null : t$36624$0.deactivate(this);
    }
  };
  (_engine.TextField.new = function(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[353], 205, 29, "semanticsObject");
    this[editableElement] = null;
    this[_positionInputElementTimer] = null;
    dart.global.Object.getPrototypeOf(_engine.TextField).blank.call(this, _engine.PrimaryRole.textField, semanticsObject);
    this[_setupDomElement]();
  }).prototype = _engine.TextField.prototype;
  dart.addRtiResources(_engine.TextField, ["_engine|TextField"]);
  dart.setMethodSignature(_engine.TextField, () => dart.global.Object.setPrototypeOf({
    focusAsRouteDefault: T$.VoidTobool(),
    [_initializeEditableElement]: T$.VoidTovoid(),
    [_setupDomElement]: T$.VoidTovoid(),
    [_initializeForBlink]: T$.VoidTovoid(),
    [_initializeForWebkit]: T$.VoidTovoid(),
    [_invokeIosWorkaround]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextField))));
  dart.setGetterSignature(_engine.TextField, () => dart.global.Object.setPrototypeOf({activeEditableElement: T$10.DomHTMLElement()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.TextField))));
  dart.setLibraryUri(_engine.TextField, I[220]);
  dart.setFieldSignature(_engine.TextField, () => dart.global.Object.setPrototypeOf({
    editableElement: {type: T$9.DomHTMLElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_positionInputElementTimer]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextField))));
  dart.setStaticFieldSignature(_engine.TextField, () => ['_delayBeforePlacement']);
  dart.defineLazy(_engine.TextField, {
    /*_engine.TextField._delayBeforePlacement*/get _delayBeforePlacement() {
      return C[974] || CT.C974;
    }
  }, false);
  var _length$2 = dart.privateName(_engine, "_length");
  var _typedBuffer = dart.privateName(_engine, "_typedBuffer");
  var _defaultValue = dart.privateName(_engine, "_defaultValue");
  var _createBuffer = dart.privateName(_engine, "_createBuffer");
  var _createBiggerBuffer = dart.privateName(_engine, "_createBiggerBuffer");
  var _grow$0 = dart.privateName(_engine, "_grow");
  var _add$1 = dart.privateName(_engine, "_add");
  var _addAll = dart.privateName(_engine, "_addAll");
  var _insertKnownLength = dart.privateName(_engine, "_insertKnownLength");
  var _ensureCapacity = dart.privateName(_engine, "_ensureCapacity");
  var _setRange = dart.privateName(_engine, "_setRange");
  _engine._TypedDataBuffer$ = dart.generic(E => {
    var __t$_TypedDataBufferOfE = () => (__t$_TypedDataBufferOfE = dart.constFn(E[_eval]("_engine|_TypedDataBuffer<0>")))();
    var __t$IterableOfE = () => (__t$IterableOfE = dart.constFn(E[_eval]("core|Iterable<0>")))();
    var __t$ListOfE = () => (__t$ListOfE = dart.constFn(E[_eval]("core|List<0>")))();
    var __t$intToE = () => (__t$intToE = dart.constFn(E[_eval]("0(core|int)")))();
    var __t$ETovoid = () => (__t$ETovoid = dart.constFn(E[_eval]("~(0)")))();
    var __t$IterableOfEAndintAndintNTovoid = () => (__t$IterableOfEAndintAndintNTovoid = dart.constFn(E[_eval]("~(core|Iterable<0>[core|int,core|int?])")))();
    var __t$intAndIterableOfEAndint__Tovoid = () => (__t$intAndIterableOfEAndint__Tovoid = dart.constFn(E[_eval]("~(core|int,core|Iterable<0>,core|int,core|int)")))();
    var __t$intNToListOfE = () => (__t$intNToListOfE = dart.constFn(E[_eval]("core|List<0>(core|int?)")))();
    var __t$intAndintAndIterableOfE__Tovoid = () => (__t$intAndintAndIterableOfE__Tovoid = dart.constFn(E[_eval]("~(core|int,core|int,core|Iterable<0>,core|int)")))();
    var __t$ListBaseOfE = () => (__t$ListBaseOfE = dart.constFn(collection.ListBase$(E)))();
    class _TypedDataBuffer extends __t$ListBaseOfE() {
      get [_typedBuffer]() {
        return T$8.TypedData()[_as](this[_buffer$1]);
      }
      get length() {
        return this[_length$2];
      }
      _get(index) {
        if (index == null) dart.nullFailed(I[356], 30, 21, "index");
        if (dart.notNull(index) >= dart.notNull(this.length)) {
          dart.throw(new core.IndexError.new(index, this));
        }
        return this[_buffer$1][$_get](index);
      }
      _set(index, value$) {
        let value = value$;
        if (index == null) dart.nullFailed(I[356], 38, 25, "index");
        E[_as](value);
        if (dart.notNull(index) >= dart.notNull(this.length)) {
          dart.throw(new core.IndexError.new(index, this));
        }
        this[_buffer$1][$_set](index, value);
        return value$;
      }
      set length(newLength) {
        if (newLength == null) dart.nullFailed(I[356], 46, 18, "newLength");
        if (dart.notNull(newLength) < dart.notNull(this[_length$2])) {
          let defaultValue = this[_defaultValue];
          for (let i = newLength; dart.notNull(i) < dart.notNull(this[_length$2]); i = dart.notNull(i) + 1) {
            this[_buffer$1][$_set](i, defaultValue);
          }
        } else if (dart.notNull(newLength) > dart.notNull(this[_buffer$1][$length])) {
          let newBuffer = null;
          if (dart.test(this[_buffer$1][$isEmpty])) {
            newBuffer = this[_createBuffer](newLength);
          } else {
            newBuffer = this[_createBiggerBuffer](newLength);
          }
          newBuffer[$setRange](0, this[_length$2], this[_buffer$1]);
          this[_buffer$1] = newBuffer;
        }
        this[_length$2] = newLength;
      }
      [_add$1](value) {
        let t$36624;
        if (this[_length$2] == this[_buffer$1][$length]) {
          this[_grow$0](this[_length$2]);
        }
        this[_buffer$1][$_set]((t$36624 = this[_length$2], this[_length$2] = dart.notNull(t$36624) + 1, t$36624), value);
      }
      add(value) {
        E[_as](value);
        this[_add$1](value);
      }
      addAll(values, start = 0, end = null) {
        __t$IterableOfE()[_as](values);
        if (values == null) dart.nullFailed(I[356], 90, 27, "values");
        if (start == null) dart.nullFailed(I[356], 90, 40, "start");
        core.RangeError.checkNotNegative(start, "start");
        if (end != null && dart.notNull(start) > dart.notNull(end)) {
          dart.throw(new core.RangeError.range(end, start, null, "end"));
        }
        this[_addAll](values, start, end);
      }
      insertAll(index, values, start = 0, end = null) {
        let t$36624;
        if (index == null) dart.nullFailed(I[356], 109, 22, "index");
        __t$IterableOfE()[_as](values);
        if (values == null) dart.nullFailed(I[356], 109, 41, "values");
        if (start == null) dart.nullFailed(I[356], 109, 54, "start");
        core.IndexError.check(index, dart.notNull(this[_length$2]) + 1, {indexable: this, name: "index"});
        core.RangeError.checkNotNegative(start, "start");
        if (end != null) {
          if (dart.notNull(start) > dart.notNull(end)) {
            dart.throw(new core.RangeError.range(end, start, null, "end"));
          }
          if (start == end) {
            return;
          }
        }
        if (index == this[_length$2]) {
          this[_addAll](values, start, end);
          return;
        }
        if (end == null && T$.List()[_is](values)) {
          end = values[$length];
        }
        if (end != null) {
          this[_insertKnownLength](index, values, start, end);
          return;
        }
        let writeIndex = this[_length$2];
        let skipCount = start;
        for (let value of values) {
          if (dart.notNull(skipCount) > 0) {
            skipCount = dart.notNull(skipCount) - 1;
            continue;
          }
          if (writeIndex == this[_buffer$1][$length]) {
            this[_grow$0](writeIndex);
          }
          this[_buffer$1][$_set]((t$36624 = writeIndex, writeIndex = dart.notNull(t$36624) + 1, t$36624), value);
        }
        if (dart.notNull(skipCount) > 0) {
          dart.throw(new core.StateError.new("Too few elements"));
        }
        if (end != null && dart.notNull(writeIndex) < dart.notNull(end)) {
          dart.throw(new core.RangeError.range(end, start, writeIndex, "end"));
        }
        _engine._TypedDataBuffer._reverse(this[_buffer$1], index, this[_length$2]);
        _engine._TypedDataBuffer._reverse(this[_buffer$1], this[_length$2], writeIndex);
        _engine._TypedDataBuffer._reverse(this[_buffer$1], index, writeIndex);
        this[_length$2] = writeIndex;
        return;
      }
      static _reverse(buffer, start, end) {
        if (buffer == null) dart.nullFailed(I[356], 169, 38, "buffer");
        if (start == null) dart.nullFailed(I[356], 169, 50, "start");
        if (end == null) dart.nullFailed(I[356], 169, 61, "end");
        end = dart.notNull(end) - 1;
        while (dart.notNull(start) < dart.notNull(end)) {
          let first = buffer[$_get](start);
          let last = buffer[$_get](end);
          buffer[$_set](end, first);
          buffer[$_set](start, last);
          start = dart.notNull(start) + 1;
          end = dart.notNull(end) - 1;
        }
      }
      [_addAll](values, start = 0, end = null) {
        if (values == null) dart.nullFailed(I[356], 186, 28, "values");
        if (start == null) dart.nullFailed(I[356], 186, 41, "start");
        if (__t$ListOfE()[_is](values)) {
          end == null ? end = values[$length] : null;
        }
        if (end != null) {
          this[_insertKnownLength](this[_length$2], values, start, end);
          return;
        }
        let i = 0;
        for (let value of values) {
          if (i >= dart.notNull(start)) {
            this.add(value);
          }
          i = i + 1;
        }
        if (i < dart.notNull(start)) {
          dart.throw(new core.StateError.new("Too few elements"));
        }
      }
      [_insertKnownLength](index, values, start, end) {
        if (index == null) dart.nullFailed(I[356], 213, 31, "index");
        if (values == null) dart.nullFailed(I[356], 213, 50, "values");
        if (start == null) dart.nullFailed(I[356], 213, 62, "start");
        if (end == null) dart.nullFailed(I[356], 213, 73, "end");
        if (dart.notNull(start) > dart.notNull(values[$length]) || dart.notNull(end) > dart.notNull(values[$length])) {
          dart.throw(new core.StateError.new("Too few elements"));
        }
        let valuesLength = dart.notNull(end) - dart.notNull(start);
        let newLength = dart.notNull(this[_length$2]) + valuesLength;
        this[_ensureCapacity](newLength);
        this[_buffer$1][$setRange](dart.notNull(index) + valuesLength, dart.notNull(this[_length$2]) + valuesLength, this[_buffer$1], index);
        this[_buffer$1][$setRange](index, dart.notNull(index) + valuesLength, values, start);
        this[_length$2] = newLength;
      }
      insert(index, element) {
        if (index == null) dart.nullFailed(I[356], 229, 19, "index");
        E[_as](element);
        if (dart.notNull(index) < 0 || dart.notNull(index) > dart.notNull(this[_length$2])) {
          dart.throw(new core.RangeError.range(index, 0, this[_length$2]));
        }
        if (dart.notNull(this[_length$2]) < dart.notNull(this[_buffer$1][$length])) {
          this[_buffer$1][$setRange](dart.notNull(index) + 1, dart.notNull(this[_length$2]) + 1, this[_buffer$1], index);
          this[_buffer$1][$_set](index, element);
          this[_length$2] = dart.notNull(this[_length$2]) + 1;
          return;
        }
        let newBuffer = this[_createBiggerBuffer](null);
        newBuffer[$setRange](0, index, this[_buffer$1]);
        newBuffer[$setRange](dart.notNull(index) + 1, dart.notNull(this[_length$2]) + 1, this[_buffer$1], index);
        newBuffer[$_set](index, element);
        this[_length$2] = dart.notNull(this[_length$2]) + 1;
        this[_buffer$1] = newBuffer;
      }
      [_ensureCapacity](requiredCapacity) {
        if (requiredCapacity == null) dart.nullFailed(I[356], 250, 28, "requiredCapacity");
        if (dart.notNull(requiredCapacity) <= dart.notNull(this[_buffer$1][$length])) {
          return;
        }
        let newBuffer = this[_createBiggerBuffer](requiredCapacity);
        newBuffer[$setRange](0, this[_length$2], this[_buffer$1]);
        this[_buffer$1] = newBuffer;
      }
      [_createBiggerBuffer](requiredCapacity) {
        let newLength = dart.notNull(this[_buffer$1][$length]) * 2;
        if (requiredCapacity != null && dart.notNull(newLength) < dart.notNull(requiredCapacity)) {
          newLength = requiredCapacity;
        } else if (dart.notNull(newLength) < 8) {
          newLength = 8;
        }
        return this[_createBuffer](newLength);
      }
      [_grow$0](length) {
        let t$36624;
        if (length == null) dart.nullFailed(I[356], 278, 18, "length");
        this[_buffer$1] = (t$36624 = this[_createBiggerBuffer](null), (() => {
          t$36624[$setRange](0, length, this[_buffer$1]);
          return t$36624;
        })());
      }
      setRange(start, end, source, skipCount = 0) {
        if (start == null) dart.nullFailed(I[356], 283, 21, "start");
        if (end == null) dart.nullFailed(I[356], 283, 32, "end");
        __t$IterableOfE()[_as](source);
        if (source == null) dart.nullFailed(I[356], 283, 49, "source");
        if (skipCount == null) dart.nullFailed(I[356], 283, 62, "skipCount");
        if (dart.notNull(end) > dart.notNull(this[_length$2])) {
          dart.throw(new core.RangeError.range(end, 0, this[_length$2]));
        }
        this[_setRange](start, end, source, skipCount);
      }
      [_setRange](start, end, source, skipCount) {
        if (start == null) dart.nullFailed(I[356], 291, 22, "start");
        if (end == null) dart.nullFailed(I[356], 291, 33, "end");
        if (source == null) dart.nullFailed(I[356], 291, 50, "source");
        if (skipCount == null) dart.nullFailed(I[356], 291, 62, "skipCount");
        if (__t$_TypedDataBufferOfE()[_is](source)) {
          this[_buffer$1][$setRange](start, end, source[_buffer$1], skipCount);
        } else {
          this[_buffer$1][$setRange](start, end, source, skipCount);
        }
      }
      get elementSizeInBytes() {
        return this[_typedBuffer][$elementSizeInBytes];
      }
      get lengthInBytes() {
        return dart.notNull(this[_length$2]) * dart.notNull(this[_typedBuffer][$elementSizeInBytes]);
      }
      get offsetInBytes() {
        return this[_typedBuffer][$offsetInBytes];
      }
      get buffer() {
        return this[_typedBuffer][$buffer];
      }
    }
    (_TypedDataBuffer.new = function(buffer) {
      if (buffer == null) dart.nullFailed(I[356], 8, 28, "buffer");
      this[_buffer$1] = buffer;
      this[_length$2] = buffer[$length];
      this.$ti = this.$ti || __t$_TypedDataBufferOfE();
      dart.global.Object.getPrototypeOf(_TypedDataBuffer).new.call(this);
      ;
    }).prototype = _TypedDataBuffer.prototype;
    dart.addRtiResources(_TypedDataBuffer, ["_engine|_TypedDataBuffer"]);
    dart.setMethodSignature(_TypedDataBuffer, () => dart.global.Object.setPrototypeOf({
      _get: __t$intToE(),
      [$_get]: __t$intToE(),
      _set: T$.intAndObjectNTovoid(),
      [$_set]: T$.intAndObjectNTovoid(),
      [_add$1]: __t$ETovoid(),
      addAll: T$12.ObjectNAndintAndintNTovoid(),
      [$addAll]: T$12.ObjectNAndintAndintNTovoid(),
      insertAll: T$12.intAndObjectNAndint__Tovoid(),
      [$insertAll]: T$12.intAndObjectNAndint__Tovoid(),
      [_addAll]: __t$IterableOfEAndintAndintNTovoid(),
      [_insertKnownLength]: __t$intAndIterableOfEAndint__Tovoid(),
      [_ensureCapacity]: T$.intTovoid(),
      [_createBiggerBuffer]: __t$intNToListOfE(),
      [_grow$0]: T$.intTovoid(),
      [_setRange]: __t$intAndintAndIterableOfE__Tovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_TypedDataBuffer))));
    dart.setStaticMethodSignature(_TypedDataBuffer, () => ['_reverse']);
    dart.setGetterSignature(_TypedDataBuffer, () => dart.global.Object.setPrototypeOf({
      [_typedBuffer]: T$8.TypedData(),
      length: T$.int(),
      [$length]: T$.int(),
      elementSizeInBytes: T$.int(),
      lengthInBytes: T$.int(),
      offsetInBytes: T$.int(),
      buffer: T$0.ByteBuffer()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_TypedDataBuffer))));
    dart.setSetterSignature(_TypedDataBuffer, () => dart.global.Object.setPrototypeOf({
      length: T$.int(),
      [$length]: T$.int()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(_TypedDataBuffer))));
    dart.setLibraryUri(_TypedDataBuffer, I[220]);
    dart.setFieldSignature(_TypedDataBuffer, () => dart.global.Object.setPrototypeOf({
      [_buffer$1]: {type: __t$ListOfE(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_length$2]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_TypedDataBuffer))));
    dart.setStaticFieldSignature(_TypedDataBuffer, () => ['_initialLength']);
    dart.defineExtensionMethods(_TypedDataBuffer, [
      '_get',
      '_set',
      'add',
      'addAll',
      'insertAll',
      'insert',
      'setRange'
    ]);
    dart.defineExtensionAccessors(_TypedDataBuffer, ['length']);
    return _TypedDataBuffer;
  });
  _engine._TypedDataBuffer = _engine._TypedDataBuffer$();
  dart.defineLazy(_engine._TypedDataBuffer, {
    /*_engine._TypedDataBuffer._initialLength*/get _initialLength() {
      return 8;
    }
  }, false);
  _engine._IntBuffer = class _IntBuffer extends G$._TypedDataBufferOfint() {
    get [_defaultValue]() {
      return 0;
    }
  };
  (_engine._IntBuffer.new = function(buffer) {
    if (buffer == null) dart.nullFailed(I[356], 326, 20, "buffer");
    this.$ti = this.$ti || T$12._IntBuffer();
    dart.global.Object.getPrototypeOf(_engine._IntBuffer).new.call(this, buffer);
    ;
  }).prototype = _engine._IntBuffer.prototype;
  dart.addRtiResources(_engine._IntBuffer, ["_engine|_IntBuffer"]);
  dart.setGetterSignature(_engine._IntBuffer, () => dart.global.Object.setPrototypeOf({[_defaultValue]: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._IntBuffer))));
  dart.setLibraryUri(_engine._IntBuffer, I[220]);
  _engine.Uint8Buffer = class Uint8Buffer extends _engine._IntBuffer {
    static ['_#new#tearOff'](initialLength = 0) {
      if (initialLength == null) dart.nullFailed(I[356], 333, 20, "initialLength");
      return new _engine.Uint8Buffer.new(initialLength);
    }
    [_createBuffer](size) {
      if (size == null) dart.nullFailed(I[356], 336, 31, "size");
      return _native_typed_data.NativeUint8List.new(size);
    }
  };
  (_engine.Uint8Buffer.new = function(initialLength = 0) {
    if (initialLength == null) dart.nullFailed(I[356], 333, 20, "initialLength");
    this.$ti = this.$ti || T$12.Uint8Buffer();
    dart.global.Object.getPrototypeOf(_engine.Uint8Buffer).new.call(this, _native_typed_data.NativeUint8List.new(initialLength));
    ;
  }).prototype = _engine.Uint8Buffer.prototype;
  dart.addRtiResources(_engine.Uint8Buffer, ["_engine|Uint8Buffer"]);
  dart.setMethodSignature(_engine.Uint8Buffer, () => dart.global.Object.setPrototypeOf({[_createBuffer]: T$0.intToUint8List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Uint8Buffer))));
  dart.setLibraryUri(_engine.Uint8Buffer, I[220]);
  _engine.MessageCodec$ = dart.generic(T => {
    var __t$MessageCodecOfT = () => (__t$MessageCodecOfT = dart.constFn(T[_eval]("_engine|MessageCodec<0>")))();
    class MessageCodec extends core.Object {}
    (MessageCodec.new = function() {
      this.$ti = this.$ti || __t$MessageCodecOfT();
      ;
    }).prototype = MessageCodec.prototype;
    dart.addRtiResources(MessageCodec, ["_engine|MessageCodec"]);
    dart.setLibraryUri(MessageCodec, I[220]);
    return MessageCodec;
  });
  _engine.MessageCodec = _engine.MessageCodec$();
  const method$ = MethodCall_method;
  const $arguments$1 = MethodCall_arguments;
  _engine.MethodCall = class MethodCall extends core.Object {
    get method() {
      return this[method$];
    }
    set method(value) {
      super.method = value;
    }
    get arguments() {
      return this[$arguments$1];
    }
    set arguments(value) {
      super.arguments = value;
    }
    static ['_#new#tearOff'](method, $arguments = null) {
      if (method == null) dart.nullFailed(I[357], 35, 25, "method");
      return new _engine.MethodCall.new(method, $arguments);
    }
    toString() {
      return dart.str(dart.runtimeType(this)) + "(" + dart.str(this.method) + ", " + dart.str(this.arguments) + ")";
    }
  };
  (_engine.MethodCall.new = function(method, $arguments = null) {
    if (method == null) dart.nullFailed(I[357], 35, 25, "method");
    this[method$] = method;
    this[$arguments$1] = $arguments;
    ;
  }).prototype = _engine.MethodCall.prototype;
  dart.addRtiResources(_engine.MethodCall, ["_engine|MethodCall"]);
  dart.setLibraryUri(_engine.MethodCall, I[220]);
  dart.setFieldSignature(_engine.MethodCall, () => dart.global.Object.setPrototypeOf({
    method: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    arguments: {type: T$.dynamic(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MethodCall))));
  dart.defineExtensionMethods(_engine.MethodCall, ['toString']);
  _engine.MethodCodec = class MethodCodec extends core.Object {};
  (_engine.MethodCodec.new = function() {
    ;
  }).prototype = _engine.MethodCodec.prototype;
  dart.addRtiResources(_engine.MethodCodec, ["_engine|MethodCodec"]);
  dart.setLibraryUri(_engine.MethodCodec, I[220]);
  var code$0 = dart.privateName(_engine, "PlatformException.code");
  var message$19 = dart.privateName(_engine, "PlatformException.message");
  var details$ = dart.privateName(_engine, "PlatformException.details");
  _engine.PlatformException = class PlatformException extends core.Object {
    get code() {
      return this[code$0];
    }
    set code(value) {
      super.code = value;
    }
    get message() {
      return this[message$19];
    }
    set message(value) {
      super.message = value;
    }
    get details() {
      return this[details$];
    }
    set details(value) {
      super.details = value;
    }
    static ['_#new#tearOff'](opts) {
      let code = opts && 'code' in opts ? opts.code : null;
      if (code == null) dart.nullFailed(I[357], 101, 19, "code");
      let message = opts && 'message' in opts ? opts.message : null;
      let details = opts && 'details' in opts ? opts.details : null;
      return new _engine.PlatformException.new({code: code, message: message, details: details});
    }
    toString() {
      return "PlatformException(" + dart.str(this.code) + ", " + dart.str(this.message) + ", " + dart.str(this.details) + ")";
    }
  };
  (_engine.PlatformException.new = function(opts) {
    let code = opts && 'code' in opts ? opts.code : null;
    if (code == null) dart.nullFailed(I[357], 101, 19, "code");
    let message = opts && 'message' in opts ? opts.message : null;
    let details = opts && 'details' in opts ? opts.details : null;
    this[code$0] = code;
    this[message$19] = message;
    this[details$] = details;
    ;
  }).prototype = _engine.PlatformException.prototype;
  dart.addRtiResources(_engine.PlatformException, ["_engine|PlatformException", "core|Exception"]);
  dart.setLibraryUri(_engine.PlatformException, I[220]);
  dart.setFieldSignature(_engine.PlatformException, () => dart.global.Object.setPrototypeOf({
    code: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    message: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    details: {type: T$.dynamic(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlatformException))));
  dart.defineExtensionMethods(_engine.PlatformException, ['toString']);
  var message$20 = dart.privateName(_engine, "MissingPluginException.message");
  _engine.MissingPluginException = class MissingPluginException extends core.Object {
    get message() {
      return this[message$20];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message = null) {
      return new _engine.MissingPluginException.new(message);
    }
    toString() {
      return "MissingPluginException(" + dart.str(this.message) + ")";
    }
  };
  (_engine.MissingPluginException.new = function(message = null) {
    this[message$20] = message;
    ;
  }).prototype = _engine.MissingPluginException.prototype;
  dart.addRtiResources(_engine.MissingPluginException, ["_engine|MissingPluginException", "core|Exception"]);
  dart.setLibraryUri(_engine.MissingPluginException, I[220]);
  dart.setFieldSignature(_engine.MissingPluginException, () => dart.global.Object.setPrototypeOf({message: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.MissingPluginException))));
  dart.defineExtensionMethods(_engine.MissingPluginException, ['toString']);
  _engine.BinaryCodec = class BinaryCodec extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.BinaryCodec.new();
    }
    decodeMessage(message) {
      if (message == null) dart.nullFailed(I[358], 18, 35, "message");
      return message;
    }
    encodeMessage(message) {
      T$0.ByteData()[_as](message);
      if (message == null) dart.nullFailed(I[358], 21, 35, "message");
      return message;
    }
  };
  (_engine.BinaryCodec.new = function() {
    ;
  }).prototype = _engine.BinaryCodec.prototype;
  dart.addRtiResources(_engine.BinaryCodec, ["_engine|BinaryCodec", "_engine|MessageCodec"]);
  dart.setMethodSignature(_engine.BinaryCodec, () => dart.global.Object.setPrototypeOf({
    decodeMessage: T$12.ByteDataToByteData(),
    encodeMessage: T$12.ObjectNToByteData()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BinaryCodec))));
  dart.setLibraryUri(_engine.BinaryCodec, I[220]);
  _engine.StringCodec = class StringCodec extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.StringCodec.new();
    }
    decodeMessage(message) {
      if (message == null) dart.nullFailed(I[358], 33, 33, "message");
      return convert.utf8.decoder.convert(message[$buffer][$asUint8List]());
    }
    encodeMessage(message) {
      T$.String()[_as](message);
      if (message == null) dart.nullFailed(I[358], 38, 33, "message");
      let encoded = convert.utf8.encode(message);
      return encoded[$buffer][$asByteData]();
    }
  };
  (_engine.StringCodec.new = function() {
    ;
  }).prototype = _engine.StringCodec.prototype;
  dart.addRtiResources(_engine.StringCodec, ["_engine|StringCodec", "_engine|MessageCodec"]);
  dart.setMethodSignature(_engine.StringCodec, () => dart.global.Object.setPrototypeOf({
    decodeMessage: T$12.ByteDataToString(),
    encodeMessage: T$12.ObjectNToByteData()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.StringCodec))));
  dart.setLibraryUri(_engine.StringCodec, I[220]);
  _engine.JSONMessageCodec = class JSONMessageCodec extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.JSONMessageCodec.new();
    }
    encodeMessage(message) {
      if (message == null) {
        return null;
      }
      return (C[912] || CT.C912).encodeMessage(convert.json.encode(message));
    }
    decodeMessage(message) {
      if (message == null) {
        return message;
      }
      return convert.json.decode((C[912] || CT.C912).decodeMessage(message));
    }
  };
  (_engine.JSONMessageCodec.new = function() {
    ;
  }).prototype = _engine.JSONMessageCodec.prototype;
  dart.addRtiResources(_engine.JSONMessageCodec, ["_engine|JSONMessageCodec", "_engine|MessageCodec"]);
  dart.setMethodSignature(_engine.JSONMessageCodec, () => dart.global.Object.setPrototypeOf({
    encodeMessage: T$12.ObjectNToByteDataN(),
    decodeMessage: T$12.ByteDataNTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.JSONMessageCodec))));
  dart.setLibraryUri(_engine.JSONMessageCodec, I[220]);
  _engine.JSONMethodCodec = class JSONMethodCodec extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.JSONMethodCodec.new();
    }
    encodeMethodCall(call) {
      if (call == null) dart.nullFailed(I[358], 110, 41, "call");
      return (C[923] || CT.C923).encodeMessage(new (G.IdentityMapOfString$dynamic()).from(["method", call.method, "args", call.arguments]));
    }
    decodeMethodCall(methodCall) {
      let decoded = (C[923] || CT.C923).decodeMessage(methodCall);
      if (!T$.Map()[_is](decoded)) {
        dart.throw(new core.FormatException.new("Expected method call Map, got " + dart.str(decoded)));
      }
      let method = decoded[$_get]("method");
      let $arguments = decoded[$_get]("args");
      if (typeof method == 'string') {
        return new _engine.MethodCall.new(method, $arguments);
      }
      dart.throw(new core.FormatException.new("Invalid method call: " + dart.str(decoded)));
    }
    decodeEnvelope(envelope) {
      if (envelope == null) dart.nullFailed(I[358], 132, 35, "envelope");
      let decoded = (C[923] || CT.C923).decodeMessage(envelope);
      if (!T$.List()[_is](decoded)) {
        dart.throw(new core.FormatException.new("Expected envelope List, got " + dart.str(decoded)));
      }
      if (decoded[$length] === 1) {
        return decoded[$_get](0);
      }
      if (decoded[$length] === 3 && typeof decoded[$_get](0) == 'string' && (decoded[$_get](1) == null || typeof decoded[$_get](1) == 'string')) {
        dart.throw(new _engine.PlatformException.new({code: T$.String()[_as](decoded[$_get](0)), message: T$.StringN()[_as](decoded[$_get](1)), details: decoded[$_get](2)}));
      }
      dart.throw(new core.FormatException.new("Invalid envelope: " + dart.str(decoded)));
    }
    encodeSuccessEnvelope(result) {
      return (C[923] || CT.C923).encodeMessage([result]);
    }
    encodeErrorEnvelope(opts) {
      let code = opts && 'code' in opts ? opts.code : null;
      if (code == null) dart.nullFailed(I[358], 159, 24, "code");
      let message = opts && 'message' in opts ? opts.message : null;
      let details = opts && 'details' in opts ? opts.details : null;
      return (C[923] || CT.C923).encodeMessage([code, message, details]);
    }
  };
  (_engine.JSONMethodCodec.new = function() {
    ;
  }).prototype = _engine.JSONMethodCodec.prototype;
  dart.addRtiResources(_engine.JSONMethodCodec, ["_engine|JSONMethodCodec", "_engine|MethodCodec"]);
  dart.setMethodSignature(_engine.JSONMethodCodec, () => dart.global.Object.setPrototypeOf({
    encodeMethodCall: T$12.MethodCallToByteDataN(),
    decodeMethodCall: T$12.ByteDataNToMethodCall(),
    decodeEnvelope: T$12.ByteDataTodynamic(),
    encodeSuccessEnvelope: T$12.dynamicToByteDataN(),
    encodeErrorEnvelope: T$12.__ToByteDataN$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.JSONMethodCodec))));
  dart.setLibraryUri(_engine.JSONMethodCodec, I[220]);
  _engine.StandardMessageCodec = class StandardMessageCodec extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.StandardMessageCodec.new();
    }
    encodeMessage(message) {
      if (message == null) {
        return null;
      }
      let buffer = _engine.WriteBuffer.new();
      this.writeValue(buffer, message);
      return buffer.done();
    }
    decodeMessage(message) {
      if (message == null) {
        return null;
      }
      let buffer = new _engine.ReadBuffer.new(message);
      let result = this.readValue(buffer);
      if (dart.test(buffer.hasRemaining)) {
        dart.throw(C[975] || CT.C975);
      }
      return result;
    }
    writeValue(buffer, value) {
      if (buffer == null) dart.nullFailed(I[358], 301, 31, "buffer");
      if (value == null) {
        buffer.putUint8(0);
      } else if (typeof value == 'boolean') {
        buffer.putUint8(dart.test(value) ? 1 : 2);
      } else if (typeof value == 'number') {
        buffer.putUint8(6);
        buffer.putFloat64(value);
      } else if (T$.int()[_is](value)) {
        if (-2147483647 - 1 <= dart.notNull(value) && dart.notNull(value) <= 2147483647) {
          buffer.putUint8(3);
          buffer.putInt32(value);
        } else {
          buffer.putUint8(4);
          buffer.putInt64(value);
        }
      } else if (typeof value == 'string') {
        buffer.putUint8(7);
        let bytes = convert.utf8.encode(value);
        this.writeSize(buffer, bytes[$length]);
        buffer.putUint8List(T$.Uint8List()[_as](bytes));
      } else if (T$.Uint8List()[_is](value)) {
        buffer.putUint8(8);
        this.writeSize(buffer, value[$length]);
        buffer.putUint8List(value);
      } else if (T$0.Int32List()[_is](value)) {
        buffer.putUint8(9);
        this.writeSize(buffer, value[$length]);
        buffer.putInt32List(value);
      } else if (T$0.Int64List()[_is](value)) {
        buffer.putUint8(10);
        this.writeSize(buffer, value[$length]);
        buffer.putInt64List(value);
      } else if (T$0.Float64List()[_is](value)) {
        buffer.putUint8(11);
        this.writeSize(buffer, value[$length]);
        buffer.putFloat64List(value);
      } else if (T$.List()[_is](value)) {
        buffer.putUint8(12);
        this.writeSize(buffer, value[$length]);
        for (let item of value) {
          this.writeValue(buffer, item);
        }
      } else if (T$.Map()[_is](value)) {
        buffer.putUint8(13);
        this.writeSize(buffer, value[$length]);
        value[$forEach](dart.fn((key, value) => {
          this.writeValue(buffer, key);
          this.writeValue(buffer, value);
        }, T$.dynamicAnddynamicTovoid()));
      } else {
        dart.throw(new core.ArgumentError.value(value));
      }
    }
    readValue(buffer) {
      if (buffer == null) dart.nullFailed(I[358], 361, 32, "buffer");
      if (!dart.test(buffer.hasRemaining)) {
        dart.throw(C[975] || CT.C975);
      }
      let type = buffer.getUint8();
      return this.readValueOfType(type, buffer);
    }
    readValueOfType(type, buffer) {
      if (type == null) dart.nullFailed(I[358], 373, 31, "type");
      if (buffer == null) dart.nullFailed(I[358], 373, 48, "buffer");
      let result = null;
      switch (type) {
        case 0:
          {
            result = null;
            break;
          }
        case 1:
          {
            result = true;
            break;
          }
        case 2:
          {
            result = false;
            break;
          }
        case 3:
          {
            result = buffer.getInt32();
            break;
          }
        case 4:
          {
            result = buffer.getInt64();
            break;
          }
        case 5:
          {
            let length = this.readSize(buffer);
            let hex = convert.utf8.decoder.convert(buffer.getUint8List(length));
            result = core.int.parse(hex, {radix: 16});
            break;
          }
        case 6:
          {
            result = buffer.getFloat64();
            break;
          }
        case 7:
          {
            let length = this.readSize(buffer);
            result = convert.utf8.decoder.convert(buffer.getUint8List(length));
            break;
          }
        case 8:
          {
            let length = this.readSize(buffer);
            result = buffer.getUint8List(length);
            break;
          }
        case 9:
          {
            let length = this.readSize(buffer);
            result = buffer.getInt32List(length);
            break;
          }
        case 10:
          {
            let length = this.readSize(buffer);
            result = buffer.getInt64List(length);
            break;
          }
        case 11:
          {
            let length = this.readSize(buffer);
            result = buffer.getFloat64List(length);
            break;
          }
        case 12:
          {
            let length = this.readSize(buffer);
            let theResult = G.JSArrayOfObjectN().of([]);
            for (let i = 0; i < dart.notNull(length); i = i + 1) {
              theResult[$add](this.readValue(buffer));
            }
            result = theResult;
            break;
          }
        case 13:
          {
            let length = this.readSize(buffer);
            let theResult = new (G.LinkedMapOfObjectN$ObjectN()).new();
            for (let i = 0; i < dart.notNull(length); i = i + 1) {
              theResult[$_set](this.readValue(buffer), this.readValue(buffer));
            }
            result = theResult;
            break;
          }
        default:
          {
            dart.throw(C[975] || CT.C975);
          }
      }
      return result;
    }
    writeSize(buffer, value) {
      if (buffer == null) dart.nullFailed(I[358], 435, 30, "buffer");
      if (value == null) dart.nullFailed(I[358], 435, 42, "value");
      if (!(0 <= dart.notNull(value) && dart.notNull(value) <= 4294967295)) dart.assertFailed(null, I[358], 436, 12, "0 <= value && value <= 0xffffffff");
      if (dart.notNull(value) < 254) {
        buffer.putUint8(value);
      } else if (dart.notNull(value) <= 65535) {
        buffer.putUint8(254);
        buffer.putUint16(value);
      } else {
        buffer.putUint8(255);
        buffer.putUint32(value);
      }
    }
    readSize(buffer) {
      if (buffer == null) dart.nullFailed(I[358], 452, 27, "buffer");
      let value = buffer.getUint8();
      switch (value) {
        case 254:
          {
            return buffer.getUint16();
          }
        case 255:
          {
            return buffer.getUint32();
          }
        default:
          {
            return value;
          }
      }
    }
  };
  (_engine.StandardMessageCodec.new = function() {
    ;
  }).prototype = _engine.StandardMessageCodec.prototype;
  dart.addRtiResources(_engine.StandardMessageCodec, ["_engine|StandardMessageCodec", "_engine|MessageCodec"]);
  dart.setMethodSignature(_engine.StandardMessageCodec, () => dart.global.Object.setPrototypeOf({
    encodeMessage: T$12.ObjectNToByteDataN(),
    decodeMessage: T$12.ByteDataNTodynamic(),
    writeValue: T$12.WriteBufferAnddynamicTovoid(),
    readValue: T$12.ReadBufferTodynamic(),
    readValueOfType: T$12.intAndReadBufferTodynamic(),
    writeSize: T$12.WriteBufferAndintTovoid(),
    readSize: T$12.ReadBufferToint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.StandardMessageCodec))));
  dart.setLibraryUri(_engine.StandardMessageCodec, I[220]);
  dart.setStaticFieldSignature(_engine.StandardMessageCodec, () => ['_valueNull', '_valueTrue', '_valueFalse', '_valueInt32', '_valueInt64', '_valueLargeInt', '_valueFloat64', '_valueString', '_valueUint8List', '_valueInt32List', '_valueInt64List', '_valueFloat64List', '_valueList', '_valueMap']);
  dart.defineLazy(_engine.StandardMessageCodec, {
    /*_engine.StandardMessageCodec._valueNull*/get _valueNull() {
      return 0;
    },
    /*_engine.StandardMessageCodec._valueTrue*/get _valueTrue() {
      return 1;
    },
    /*_engine.StandardMessageCodec._valueFalse*/get _valueFalse() {
      return 2;
    },
    /*_engine.StandardMessageCodec._valueInt32*/get _valueInt32() {
      return 3;
    },
    /*_engine.StandardMessageCodec._valueInt64*/get _valueInt64() {
      return 4;
    },
    /*_engine.StandardMessageCodec._valueLargeInt*/get _valueLargeInt() {
      return 5;
    },
    /*_engine.StandardMessageCodec._valueFloat64*/get _valueFloat64() {
      return 6;
    },
    /*_engine.StandardMessageCodec._valueString*/get _valueString() {
      return 7;
    },
    /*_engine.StandardMessageCodec._valueUint8List*/get _valueUint8List() {
      return 8;
    },
    /*_engine.StandardMessageCodec._valueInt32List*/get _valueInt32List() {
      return 9;
    },
    /*_engine.StandardMessageCodec._valueInt64List*/get _valueInt64List() {
      return 10;
    },
    /*_engine.StandardMessageCodec._valueFloat64List*/get _valueFloat64List() {
      return 11;
    },
    /*_engine.StandardMessageCodec._valueList*/get _valueList() {
      return 12;
    },
    /*_engine.StandardMessageCodec._valueMap*/get _valueMap() {
      return 13;
    }
  }, false);
  const messageCodec$ = StandardMethodCodec_messageCodec;
  _engine.StandardMethodCodec = class StandardMethodCodec extends core.Object {
    get messageCodec() {
      return this[messageCodec$];
    }
    set messageCodec(value) {
      super.messageCodec = value;
    }
    static ['_#new#tearOff'](messageCodec = C[907] || CT.C907) {
      if (messageCodec == null) dart.nullFailed(I[358], 487, 35, "messageCodec");
      return new _engine.StandardMethodCodec.new(messageCodec);
    }
    encodeMethodCall(call) {
      if (call == null) dart.nullFailed(I[358], 493, 40, "call");
      let buffer = _engine.WriteBuffer.new();
      this.messageCodec.writeValue(buffer, call.method);
      this.messageCodec.writeValue(buffer, call.arguments);
      return buffer.done();
    }
    decodeMethodCall(methodCall) {
      let buffer = new _engine.ReadBuffer.new(dart.nullCheck(methodCall));
      let method = this.messageCodec.readValue(buffer);
      let $arguments = this.messageCodec.readValue(buffer);
      if (typeof method == 'string' && !dart.test(buffer.hasRemaining)) {
        return new _engine.MethodCall.new(method, $arguments);
      } else {
        dart.throw(C[976] || CT.C976);
      }
    }
    encodeSuccessEnvelope(result) {
      let buffer = _engine.WriteBuffer.new();
      buffer.putUint8(0);
      this.messageCodec.writeValue(buffer, result);
      return buffer.done();
    }
    encodeErrorEnvelope(opts) {
      let code = opts && 'code' in opts ? opts.code : null;
      if (code == null) dart.nullFailed(I[358], 522, 24, "code");
      let message = opts && 'message' in opts ? opts.message : null;
      let details = opts && 'details' in opts ? opts.details : null;
      let buffer = _engine.WriteBuffer.new();
      buffer.putUint8(1);
      this.messageCodec.writeValue(buffer, code);
      this.messageCodec.writeValue(buffer, message);
      this.messageCodec.writeValue(buffer, details);
      return buffer.done();
    }
    decodeEnvelope(envelope) {
      if (envelope == null) dart.nullFailed(I[358], 532, 35, "envelope");
      if (envelope[$lengthInBytes] === 0) {
        dart.throw(C[977] || CT.C977);
      }
      let buffer = new _engine.ReadBuffer.new(envelope);
      if (buffer.getUint8() === 0) {
        return this.messageCodec.readValue(buffer);
      }
      let errorCode = this.messageCodec.readValue(buffer);
      let errorMessage = this.messageCodec.readValue(buffer);
      let errorDetails = this.messageCodec.readValue(buffer);
      if (typeof errorCode == 'string' && (errorMessage == null || typeof errorMessage == 'string') && !dart.test(buffer.hasRemaining)) {
        dart.throw(new _engine.PlatformException.new({code: errorCode, message: T$.StringN()[_as](errorMessage), details: errorDetails}));
      } else {
        dart.throw(C[978] || CT.C978);
      }
    }
  };
  (_engine.StandardMethodCodec.new = function(messageCodec = C[907] || CT.C907) {
    if (messageCodec == null) dart.nullFailed(I[358], 487, 35, "messageCodec");
    this[messageCodec$] = messageCodec;
    ;
  }).prototype = _engine.StandardMethodCodec.prototype;
  dart.addRtiResources(_engine.StandardMethodCodec, ["_engine|StandardMethodCodec", "_engine|MethodCodec"]);
  dart.setMethodSignature(_engine.StandardMethodCodec, () => dart.global.Object.setPrototypeOf({
    encodeMethodCall: T$12.MethodCallToByteData(),
    decodeMethodCall: T$12.ByteDataNToMethodCall(),
    encodeSuccessEnvelope: T$12.dynamicToByteData(),
    encodeErrorEnvelope: T$12.__ToByteData(),
    decodeEnvelope: T$12.ByteDataTodynamic()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.StandardMethodCodec))));
  dart.setLibraryUri(_engine.StandardMethodCodec, I[220]);
  dart.setFieldSignature(_engine.StandardMethodCodec, () => dart.global.Object.setPrototypeOf({messageCodec: {type: T$12.StandardMessageCodec(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.StandardMethodCodec))));
  var _debugFinalized = dart.privateName(_engine, "_debugFinalized");
  var _eightBytes$ = dart.privateName(_engine, "_eightBytes");
  var _eightBytesAsList$ = dart.privateName(_engine, "_eightBytesAsList");
  var _alignTo = dart.privateName(_engine, "_alignTo");
  _engine.WriteBuffer = class WriteBuffer extends core.Object {
    static new() {
      let buffer = new _engine.Uint8Buffer.new();
      let eightBytes = _native_typed_data.NativeByteData.new(8);
      let eightBytesAsList = eightBytes[$buffer][$asUint8List]();
      return new _engine.WriteBuffer.__(buffer, eightBytes, eightBytesAsList);
    }
    static ['_#new#tearOff']() {
      return _engine.WriteBuffer.new();
    }
    static ['_#_#tearOff'](_buffer, _eightBytes, _eightBytesAsList) {
      if (_buffer == null) dart.nullFailed(I[359], 23, 22, "_buffer");
      if (_eightBytes == null) dart.nullFailed(I[359], 23, 36, "_eightBytes");
      if (_eightBytesAsList == null) dart.nullFailed(I[359], 23, 54, "_eightBytesAsList");
      return new _engine.WriteBuffer.__(_buffer, _eightBytes, _eightBytesAsList);
    }
    putUint8(byte) {
      if (byte == null) dart.nullFailed(I[359], 31, 21, "byte");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 32, 12, "!_debugFinalized");
      this[_buffer$1].add(byte);
    }
    putUint16(value) {
      if (value == null) dart.nullFailed(I[359], 37, 22, "value");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 38, 12, "!_debugFinalized");
      this[_eightBytes$][$setUint16](0, value, typed_data.Endian.host);
      this[_buffer$1].addAll(this[_eightBytesAsList$], 0, 2);
    }
    putUint32(value) {
      if (value == null) dart.nullFailed(I[359], 44, 22, "value");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 45, 12, "!_debugFinalized");
      this[_eightBytes$][$setUint32](0, value, typed_data.Endian.host);
      this[_buffer$1].addAll(this[_eightBytesAsList$], 0, 4);
    }
    putInt32(value) {
      if (value == null) dart.nullFailed(I[359], 51, 21, "value");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 52, 12, "!_debugFinalized");
      this[_eightBytes$][$setInt32](0, value, typed_data.Endian.host);
      this[_buffer$1].addAll(this[_eightBytesAsList$], 0, 4);
    }
    putInt64(value) {
      if (value == null) dart.nullFailed(I[359], 58, 21, "value");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 59, 12, "!_debugFinalized");
      this[_eightBytes$][$setInt64](0, value, typed_data.Endian.host);
      this[_buffer$1].addAll(this[_eightBytesAsList$], 0, 8);
    }
    putFloat64(value) {
      if (value == null) dart.nullFailed(I[359], 65, 26, "value");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 66, 12, "!_debugFinalized");
      this[_alignTo](8);
      this[_eightBytes$][$setFloat64](0, value, typed_data.Endian.host);
      this[_buffer$1].addAll(this[_eightBytesAsList$]);
    }
    putUint8List(list) {
      if (list == null) dart.nullFailed(I[359], 73, 31, "list");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 74, 12, "!_debugFinalized");
      this[_buffer$1].addAll(list);
    }
    putInt32List(list) {
      if (list == null) dart.nullFailed(I[359], 79, 31, "list");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 80, 12, "!_debugFinalized");
      this[_alignTo](4);
      this[_buffer$1].addAll(list[$buffer][$asUint8List](list[$offsetInBytes], 4 * dart.notNull(list[$length])));
    }
    putInt64List(list) {
      if (list == null) dart.nullFailed(I[359], 87, 31, "list");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 88, 12, "!_debugFinalized");
      this[_alignTo](8);
      this[_buffer$1].addAll(list[$buffer][$asUint8List](list[$offsetInBytes], 8 * dart.notNull(list[$length])));
    }
    putFloat64List(list) {
      if (list == null) dart.nullFailed(I[359], 95, 35, "list");
      if (!!dart.test(this[_debugFinalized])) dart.assertFailed(null, I[359], 96, 12, "!_debugFinalized");
      this[_alignTo](8);
      this[_buffer$1].addAll(list[$buffer][$asUint8List](list[$offsetInBytes], 8 * dart.notNull(list[$length])));
    }
    [_alignTo](alignment) {
      if (alignment == null) dart.nullFailed(I[359], 102, 21, "alignment");
      let mod = this[_buffer$1].length[$modulo](alignment);
      if (mod !== 0) {
        for (let i = 0; i < dart.notNull(alignment) - mod; i = i + 1) {
          this[_buffer$1].add(0);
        }
      }
    }
    done() {
      this[_debugFinalized] = true;
      let result = this[_buffer$1].buffer[$asByteData](0, this[_buffer$1].lengthInBytes);
      return result;
    }
  };
  (_engine.WriteBuffer.__ = function(_buffer, _eightBytes, _eightBytesAsList) {
    if (_buffer == null) dart.nullFailed(I[359], 23, 22, "_buffer");
    if (_eightBytes == null) dart.nullFailed(I[359], 23, 36, "_eightBytes");
    if (_eightBytesAsList == null) dart.nullFailed(I[359], 23, 54, "_eightBytesAsList");
    this[_debugFinalized] = false;
    this[_buffer$1] = _buffer;
    this[_eightBytes$] = _eightBytes;
    this[_eightBytesAsList$] = _eightBytesAsList;
    ;
  }).prototype = _engine.WriteBuffer.prototype;
  dart.addRtiResources(_engine.WriteBuffer, ["_engine|WriteBuffer"]);
  dart.setMethodSignature(_engine.WriteBuffer, () => dart.global.Object.setPrototypeOf({
    putUint8: T$.intTovoid(),
    putUint16: T$.intTovoid(),
    putUint32: T$.intTovoid(),
    putInt32: T$.intTovoid(),
    putInt64: T$.intTovoid(),
    putFloat64: T$9.doubleTovoid(),
    putUint8List: T$7.Uint8ListTovoid(),
    putInt32List: T$12.Int32ListTovoid(),
    putInt64List: T$12.Int64ListTovoid(),
    putFloat64List: T$9.Float64ListTovoid(),
    [_alignTo]: T$.intTovoid(),
    done: T$0.VoidToByteData()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.WriteBuffer))));
  dart.setStaticMethodSignature(_engine.WriteBuffer, () => ['new']);
  dart.setLibraryUri(_engine.WriteBuffer, I[220]);
  dart.setFieldSignature(_engine.WriteBuffer, () => dart.global.Object.setPrototypeOf({
    [_debugFinalized]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_buffer$1]: {type: T$12.Uint8Buffer(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_eightBytes$]: {type: T$0.ByteData(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_eightBytesAsList$]: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.WriteBuffer))));
  var data$2 = dart.privateName(_engine, "ReadBuffer.data");
  var _position$1 = dart.privateName(_engine, "_position");
  _engine.ReadBuffer = class ReadBuffer extends core.Object {
    get data() {
      return this[data$2];
    }
    set data(value) {
      super.data = value;
    }
    static ['_#new#tearOff'](data) {
      if (data == null) dart.nullFailed(I[359], 124, 19, "data");
      return new _engine.ReadBuffer.new(data);
    }
    get hasRemaining() {
      return dart.notNull(this[_position$1]) < dart.notNull(this.data[$lengthInBytes]);
    }
    getUint8() {
      let t$36624;
      return this.data[$getUint8]((t$36624 = this[_position$1], this[_position$1] = dart.notNull(t$36624) + 1, t$36624));
    }
    getUint16() {
      let value = this.data[$getUint16](this[_position$1], typed_data.Endian.host);
      this[_position$1] = dart.notNull(this[_position$1]) + 2;
      return value;
    }
    getUint32() {
      let value = this.data[$getUint32](this[_position$1], typed_data.Endian.host);
      this[_position$1] = dart.notNull(this[_position$1]) + 4;
      return value;
    }
    getInt32() {
      let value = this.data[$getInt32](this[_position$1], typed_data.Endian.host);
      this[_position$1] = dart.notNull(this[_position$1]) + 4;
      return value;
    }
    getInt64() {
      let value = this.data[$getInt64](this[_position$1], typed_data.Endian.host);
      this[_position$1] = dart.notNull(this[_position$1]) + 8;
      return value;
    }
    getFloat64() {
      this[_alignTo](8);
      let value = this.data[$getFloat64](this[_position$1], typed_data.Endian.host);
      this[_position$1] = dart.notNull(this[_position$1]) + 8;
      return value;
    }
    getUint8List(length) {
      if (length == null) dart.nullFailed(I[359], 177, 30, "length");
      let list = this.data[$buffer][$asUint8List](dart.notNull(this.data[$offsetInBytes]) + dart.notNull(this[_position$1]), length);
      this[_position$1] = dart.notNull(this[_position$1]) + dart.notNull(length);
      return list;
    }
    getInt32List(length) {
      if (length == null) dart.nullFailed(I[359], 185, 30, "length");
      this[_alignTo](4);
      let list = this.data[$buffer][$asInt32List](dart.notNull(this.data[$offsetInBytes]) + dart.notNull(this[_position$1]), length);
      this[_position$1] = dart.notNull(this[_position$1]) + 4 * dart.notNull(length);
      return list;
    }
    getInt64List(length) {
      if (length == null) dart.nullFailed(I[359], 194, 30, "length");
      this[_alignTo](8);
      let list = this.data[$buffer][$asInt64List](dart.notNull(this.data[$offsetInBytes]) + dart.notNull(this[_position$1]), length);
      this[_position$1] = dart.notNull(this[_position$1]) + 8 * dart.notNull(length);
      return list;
    }
    getFloat64List(length) {
      if (length == null) dart.nullFailed(I[359], 203, 34, "length");
      this[_alignTo](8);
      let list = this.data[$buffer][$asFloat64List](dart.notNull(this.data[$offsetInBytes]) + dart.notNull(this[_position$1]), length);
      this[_position$1] = dart.notNull(this[_position$1]) + 8 * dart.notNull(length);
      return list;
    }
    [_alignTo](alignment) {
      if (alignment == null) dart.nullFailed(I[359], 211, 21, "alignment");
      let mod = this[_position$1][$modulo](alignment);
      if (mod !== 0) {
        this[_position$1] = dart.notNull(this[_position$1]) + (dart.notNull(alignment) - mod);
      }
    }
  };
  (_engine.ReadBuffer.new = function(data) {
    if (data == null) dart.nullFailed(I[359], 124, 19, "data");
    this[_position$1] = 0;
    this[data$2] = data;
    ;
  }).prototype = _engine.ReadBuffer.prototype;
  dart.addRtiResources(_engine.ReadBuffer, ["_engine|ReadBuffer"]);
  dart.setMethodSignature(_engine.ReadBuffer, () => dart.global.Object.setPrototypeOf({
    getUint8: T$.VoidToint(),
    getUint16: T$.VoidToint(),
    getUint32: T$.VoidToint(),
    getInt32: T$.VoidToint(),
    getInt64: T$.VoidToint(),
    getFloat64: T$.VoidTodouble(),
    getUint8List: T$0.intToUint8List(),
    getInt32List: T$0.intToInt32List(),
    getInt64List: T$0.intToInt64List(),
    getFloat64List: T$0.intToFloat64List(),
    [_alignTo]: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ReadBuffer))));
  dart.setGetterSignature(_engine.ReadBuffer, () => dart.global.Object.setPrototypeOf({hasRemaining: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ReadBuffer))));
  dart.setLibraryUri(_engine.ReadBuffer, I[220]);
  dart.setFieldSignature(_engine.ReadBuffer, () => dart.global.Object.setPrototypeOf({
    data: {type: T$0.ByteData(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_position$1]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ReadBuffer))));
  var source$0 = dart.privateName(_engine, "ShaderData.source");
  var uniforms$0 = dart.privateName(_engine, "ShaderData.uniforms");
  var floatCount$0 = dart.privateName(_engine, "ShaderData.floatCount");
  var textureCount$0 = dart.privateName(_engine, "ShaderData.textureCount");
  _engine.ShaderData = class ShaderData extends core.Object {
    get source() {
      return this[source$0];
    }
    set source(value) {
      if (value == null) dart.nullFailed(I[360], 91, 10, "source");
      this[source$0] = value;
    }
    get uniforms() {
      return this[uniforms$0];
    }
    set uniforms(value) {
      if (value == null) dart.nullFailed(I[360], 92, 21, "uniforms");
      this[uniforms$0] = value;
    }
    get floatCount() {
      return this[floatCount$0];
    }
    set floatCount(value) {
      if (value == null) dart.nullFailed(I[360], 93, 7, "floatCount");
      this[floatCount$0] = value;
    }
    get textureCount() {
      return this[textureCount$0];
    }
    set textureCount(value) {
      if (value == null) dart.nullFailed(I[360], 94, 7, "textureCount");
      this[textureCount$0] = value;
    }
    static ['_#new#tearOff'](opts) {
      let source = opts && 'source' in opts ? opts.source : null;
      if (source == null) dart.nullFailed(I[360], 9, 19, "source");
      let uniforms = opts && 'uniforms' in opts ? opts.uniforms : null;
      if (uniforms == null) dart.nullFailed(I[360], 10, 19, "uniforms");
      let floatCount = opts && 'floatCount' in opts ? opts.floatCount : null;
      if (floatCount == null) dart.nullFailed(I[360], 11, 19, "floatCount");
      let textureCount = opts && 'textureCount' in opts ? opts.textureCount : null;
      if (textureCount == null) dart.nullFailed(I[360], 12, 19, "textureCount");
      return new _engine.ShaderData.new({source: source, uniforms: uniforms, floatCount: floatCount, textureCount: textureCount});
    }
    static fromBytes(data) {
      if (data == null) dart.nullFailed(I[360], 15, 42, "data");
      let contents = convert.utf8.decode(data);
      let rawShaderData = convert.json.decode(contents);
      if (!T$10.MapOfString$ObjectN()[_is](rawShaderData)) {
        dart.throw(C[979] || CT.C979);
      }
      let root = rawShaderData[$_get]("sksl");
      if (!T$10.MapOfString$ObjectN()[_is](root)) {
        dart.throw(C[979] || CT.C979);
      }
      let source = root[$_get]("shader");
      let rawUniforms = root[$_get]("uniforms");
      if (!(typeof source == 'string') || !T$.ListOfObjectN()[_is](rawUniforms)) {
        dart.throw(C[979] || CT.C979);
      }
      let uniforms = G$.ListOfUniformData().filled(rawUniforms[$length], _engine.UniformData.empty);
      let textureCount = 0;
      let floatCount = 0;
      for (let i = 0; i < dart.notNull(rawUniforms[$length]); i = i + 1) {
        let rawUniformData = rawUniforms[$_get](i);
        if (!T$10.MapOfString$ObjectN()[_is](rawUniformData)) {
          dart.throw(C[979] || CT.C979);
        }
        let name = rawUniformData[$_get]("name");
        let location = rawUniformData[$_get]("location");
        let rawType = rawUniformData[$_get]("type");
        if (!(typeof name == 'string') || !T$.int()[_is](location) || !T$.int()[_is](rawType)) {
          dart.throw(C[979] || CT.C979);
        }
        let type = _engine.uniformTypeFromJson(rawType);
        if (type == null) {
          dart.throw(C[979] || CT.C979);
        }
        if (type == _engine.UniformType.SampledImage) {
          textureCount = textureCount + 1;
        } else {
          let bitWidth = rawUniformData[$_get]("bit_width");
          let arrayElements = rawUniformData[$_get]("array_elements");
          let rows = rawUniformData[$_get]("rows");
          let columns = rawUniformData[$_get]("columns");
          if (!T$.int()[_is](bitWidth) || !T$.int()[_is](rows) || !T$.int()[_is](arrayElements) || !T$.int()[_is](columns)) {
            dart.throw(C[979] || CT.C979);
          }
          let units = dart.notNull(rows) * dart.notNull(columns);
          let value = (dart.notNull(bitWidth) / 32)[$truncate]() * units;
          if (dart.notNull(arrayElements) > 1) {
            value = value * dart.notNull(arrayElements);
          }
          floatCount = floatCount + value;
        }
        uniforms[$_set](i, new _engine.UniformData.new({name: name, location: location, type: type}));
      }
      return new _engine.ShaderData.new({source: source, uniforms: uniforms, floatCount: floatCount, textureCount: textureCount});
    }
    static ['_#fromBytes#tearOff'](data) {
      if (data == null) dart.nullFailed(I[360], 15, 42, "data");
      return _engine.ShaderData.fromBytes(data);
    }
  };
  (_engine.ShaderData.new = function(opts) {
    let source = opts && 'source' in opts ? opts.source : null;
    if (source == null) dart.nullFailed(I[360], 9, 19, "source");
    let uniforms = opts && 'uniforms' in opts ? opts.uniforms : null;
    if (uniforms == null) dart.nullFailed(I[360], 10, 19, "uniforms");
    let floatCount = opts && 'floatCount' in opts ? opts.floatCount : null;
    if (floatCount == null) dart.nullFailed(I[360], 11, 19, "floatCount");
    let textureCount = opts && 'textureCount' in opts ? opts.textureCount : null;
    if (textureCount == null) dart.nullFailed(I[360], 12, 19, "textureCount");
    this[source$0] = source;
    this[uniforms$0] = uniforms;
    this[floatCount$0] = floatCount;
    this[textureCount$0] = textureCount;
    ;
  }).prototype = _engine.ShaderData.prototype;
  dart.addRtiResources(_engine.ShaderData, ["_engine|ShaderData"]);
  dart.setStaticMethodSignature(_engine.ShaderData, () => ['fromBytes']);
  dart.setLibraryUri(_engine.ShaderData, I[220]);
  dart.setFieldSignature(_engine.ShaderData, () => dart.global.Object.setPrototypeOf({
    source: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    uniforms: {type: T$10.ListOfUniformData(), isConst: false, isFinal: false, libraryUri: I[11]},
    floatCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    textureCount: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ShaderData))));
  var name$25 = dart.privateName(_engine, "UniformData.name");
  var type$7 = dart.privateName(_engine, "UniformData.type");
  var location$ = dart.privateName(_engine, "UniformData.location");
  _engine.UniformData = class UniformData extends core.Object {
    get name() {
      return this[name$25];
    }
    set name(value) {
      super.name = value;
    }
    get type() {
      return this[type$7];
    }
    set type(value) {
      super.type = value;
    }
    get location() {
      return this[location$];
    }
    set location(value) {
      super.location = value;
    }
    static ['_#new#tearOff'](opts) {
      let name = opts && 'name' in opts ? opts.name : null;
      if (name == null) dart.nullFailed(I[360], 99, 19, "name");
      let location = opts && 'location' in opts ? opts.location : null;
      if (location == null) dart.nullFailed(I[360], 100, 19, "location");
      let type = opts && 'type' in opts ? opts.type : null;
      if (type == null) dart.nullFailed(I[360], 101, 19, "type");
      return new _engine.UniformData.new({name: name, location: location, type: type});
    }
  };
  (_engine.UniformData.new = function(opts) {
    let name = opts && 'name' in opts ? opts.name : null;
    if (name == null) dart.nullFailed(I[360], 99, 19, "name");
    let location = opts && 'location' in opts ? opts.location : null;
    if (location == null) dart.nullFailed(I[360], 100, 19, "location");
    let type = opts && 'type' in opts ? opts.type : null;
    if (type == null) dart.nullFailed(I[360], 101, 19, "type");
    this[name$25] = name;
    this[location$] = location;
    this[type$7] = type;
    ;
  }).prototype = _engine.UniformData.prototype;
  dart.addRtiResources(_engine.UniformData, ["_engine|UniformData"]);
  dart.setLibraryUri(_engine.UniformData, I[220]);
  dart.setFieldSignature(_engine.UniformData, () => dart.global.Object.setPrototypeOf({
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    type: {type: T$12.UniformType(), isConst: false, isFinal: true, libraryUri: I[220]},
    location: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.UniformData))));
  dart.setStaticFieldSignature(_engine.UniformData, () => ['empty']);
  dart.defineLazy(_engine.UniformData, {
    /*_engine.UniformData.empty*/get empty() {
      return C[980] || CT.C980;
    }
  }, false);
  _engine.UniformType = class UniformType extends core._Enum {
    [_enumToString]() {
      return "UniformType." + dart.str(this[_name$]);
    }
  };
  (_engine.UniformType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[360], 112, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[360], 112, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.UniformType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.UniformType.prototype;
  dart.addRtiResources(_engine.UniformType, ["_engine|UniformType"]);
  dart.setMethodSignature(_engine.UniformType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.UniformType))));
  dart.setLibraryUri(_engine.UniformType, I[220]);
  dart.setStaticFieldSignature(_engine.UniformType, () => ['values', 'Boolean', 'SByte', 'UByte', 'Short', 'UShort', 'Int', 'Uint', 'Int64', 'Uint64', 'Half', 'Float', 'Double', 'SampledImage']);
  dart.defineLazy(_engine.UniformType, {
    /*_engine.UniformType.values*/get values() {
      return C[982] || CT.C982;
    },
    /*_engine.UniformType.Boolean*/get Boolean() {
      return C[983] || CT.C983;
    },
    /*_engine.UniformType.SByte*/get SByte() {
      return C[984] || CT.C984;
    },
    /*_engine.UniformType.UByte*/get UByte() {
      return C[985] || CT.C985;
    },
    /*_engine.UniformType.Short*/get Short() {
      return C[986] || CT.C986;
    },
    /*_engine.UniformType.UShort*/get UShort() {
      return C[987] || CT.C987;
    },
    /*_engine.UniformType.Int*/get Int() {
      return C[988] || CT.C988;
    },
    /*_engine.UniformType.Uint*/get Uint() {
      return C[989] || CT.C989;
    },
    /*_engine.UniformType.Int64*/get Int64() {
      return C[990] || CT.C990;
    },
    /*_engine.UniformType.Uint64*/get Uint64() {
      return C[991] || CT.C991;
    },
    /*_engine.UniformType.Half*/get Half() {
      return C[992] || CT.C992;
    },
    /*_engine.UniformType.Float*/get Float() {
      return C[981] || CT.C981;
    },
    /*_engine.UniformType.Double*/get Double() {
      return C[993] || CT.C993;
    },
    /*_engine.UniformType.SampledImage*/get SampledImage() {
      return C[994] || CT.C994;
    }
  }, false);
  var blurWidth$ = dart.privateName(_engine, "SurfaceShadowData.blurWidth");
  var offset$13 = dart.privateName(_engine, "SurfaceShadowData.offset");
  _engine.SurfaceShadowData = class SurfaceShadowData extends core.Object {
    get blurWidth() {
      return this[blurWidth$];
    }
    set blurWidth(value) {
      super.blurWidth = value;
    }
    get offset() {
      return this[offset$13];
    }
    set offset(value) {
      super.offset = value;
    }
    static ['_#new#tearOff'](opts) {
      let blurWidth = opts && 'blurWidth' in opts ? opts.blurWidth : null;
      if (blurWidth == null) dart.nullFailed(I[361], 93, 19, "blurWidth");
      let offset = opts && 'offset' in opts ? opts.offset : null;
      if (offset == null) dart.nullFailed(I[361], 94, 19, "offset");
      return new _engine.SurfaceShadowData.new({blurWidth: blurWidth, offset: offset});
    }
  };
  (_engine.SurfaceShadowData.new = function(opts) {
    let blurWidth = opts && 'blurWidth' in opts ? opts.blurWidth : null;
    if (blurWidth == null) dart.nullFailed(I[361], 93, 19, "blurWidth");
    let offset = opts && 'offset' in opts ? opts.offset : null;
    if (offset == null) dart.nullFailed(I[361], 94, 19, "offset");
    this[blurWidth$] = blurWidth;
    this[offset$13] = offset;
    ;
  }).prototype = _engine.SurfaceShadowData.prototype;
  dart.addRtiResources(_engine.SurfaceShadowData, ["_engine|SurfaceShadowData"]);
  dart.setLibraryUri(_engine.SurfaceShadowData, I[220]);
  dart.setFieldSignature(_engine.SurfaceShadowData, () => dart.global.Object.setPrototypeOf({
    blurWidth: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    offset: {type: T$8.Offset(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.SurfaceShadowData))));
  const state$1 = TestHistoryEntry_state;
  const title$ = TestHistoryEntry_title;
  const url$6 = TestHistoryEntry_url;
  _engine.TestHistoryEntry = class TestHistoryEntry extends core.Object {
    get state() {
      return this[state$1];
    }
    set state(value) {
      super.state = value;
    }
    get title() {
      return this[title$];
    }
    set title(value) {
      super.title = value;
    }
    get url() {
      return this[url$6];
    }
    set url(value) {
      super.url = value;
    }
    static ['_#new#tearOff'](state, title, url) {
      if (url == null) dart.nullFailed(I[362], 14, 55, "url");
      return new _engine.TestHistoryEntry.new(state, title, url);
    }
    toString() {
      return dart.str(dart.runtimeType(this)) + "(state:" + dart.str(this.state) + ", title:\"" + dart.str(this.title) + "\", url:\"" + dart.str(this.url) + "\")";
    }
  };
  (_engine.TestHistoryEntry.new = function(state, title, url) {
    if (url == null) dart.nullFailed(I[362], 14, 55, "url");
    this[state$1] = state;
    this[title$] = title;
    this[url$6] = url;
    ;
  }).prototype = _engine.TestHistoryEntry.prototype;
  dart.addRtiResources(_engine.TestHistoryEntry, ["_engine|TestHistoryEntry"]);
  dart.setLibraryUri(_engine.TestHistoryEntry, I[220]);
  dart.setFieldSignature(_engine.TestHistoryEntry, () => dart.global.Object.setPrototypeOf({
    state: {type: T$.dynamic(), isConst: false, isFinal: true},
    title: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    url: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TestHistoryEntry))));
  dart.defineExtensionMethods(_engine.TestHistoryEntry, ['toString']);
  var history = dart.privateName(_engine, "TestUrlStrategy.history");
  var listeners = dart.privateName(_engine, "TestUrlStrategy.listeners");
  var _currentEntryIndex = dart.privateName(_engine, "_currentEntryIndex");
  var _firePopStateEvent = dart.privateName(_engine, "_firePopStateEvent");
  var _nextEventLoop = dart.privateName(_engine, "_nextEventLoop");
  _engine.TestUrlStrategy = class TestUrlStrategy extends core.Object {
    get history() {
      return this[history];
    }
    set history(value) {
      super.history = value;
    }
    get listeners() {
      return this[listeners];
    }
    set listeners(value) {
      super.listeners = value;
    }
    static new() {
      return new _engine.TestUrlStrategy.fromEntry(C[995] || CT.C995);
    }
    static ['_#new#tearOff']() {
      return _engine.TestUrlStrategy.new();
    }
    static ['_#fromEntry#tearOff'](initialEntry) {
      if (initialEntry == null) dart.nullFailed(I[362], 38, 46, "initialEntry");
      return new _engine.TestUrlStrategy.fromEntry(initialEntry);
    }
    getPath() {
      return this.currentEntry.url;
    }
    getState() {
      return this.currentEntry.state;
    }
    get currentEntryIndex() {
      return this[_currentEntryIndex];
    }
    get currentEntry() {
      if (!dart.test(this.withinAppHistory)) dart.assertFailed(null, I[362], 54, 12, "withinAppHistory");
      return this.history[$_get](this[_currentEntryIndex]);
    }
    set currentEntry(entry) {
      if (entry == null) dart.nullFailed(I[362], 58, 37, "entry");
      if (!dart.test(this.withinAppHistory)) dart.assertFailed(null, I[362], 59, 12, "withinAppHistory");
      this.history[$_set](this[_currentEntryIndex], entry);
    }
    get withinAppHistory() {
      return dart.notNull(this[_currentEntryIndex]) >= 0;
    }
    pushState(state, title, url) {
      if (title == null) dart.nullFailed(I[362], 69, 40, "title");
      if (url == null) dart.nullFailed(I[362], 69, 54, "url");
      if (!dart.test(this.withinAppHistory)) dart.assertFailed(null, I[362], 70, 12, "withinAppHistory");
      this[_currentEntryIndex] = dart.notNull(this[_currentEntryIndex]) + 1;
      this.history[$removeRange](this[_currentEntryIndex], this.history[$length]);
      this.history[$add](new _engine.TestHistoryEntry.new(state, title, url));
      ;
    }
    replaceState(state, title, url) {
      if (title == null) dart.nullFailed(I[362], 86, 43, "title");
      if (!dart.test(this.withinAppHistory)) dart.assertFailed(null, I[362], 87, 12, "withinAppHistory");
      if (url == null || url === "") {
        url = this.currentEntry.url;
      }
      this.currentEntry = new _engine.TestHistoryEntry.new(state, title, url);
      ;
    }
    simulateUserTypingUrl(url) {
      if (url == null) dart.nullFailed(I[362], 100, 45, "url");
      if (!dart.test(this.withinAppHistory)) dart.assertFailed(null, I[362], 101, 12, "withinAppHistory");
      return this[_nextEventLoop](dart.fn(() => {
        this.pushState(null, "", url);
        this[_firePopStateEvent]();
      }, T$.VoidTovoid()));
    }
    go(count) {
      if (count == null) dart.nullFailed(I[362], 109, 23, "count");
      if (!dart.test(this.withinAppHistory)) dart.assertFailed(null, I[362], 110, 12, "withinAppHistory");
      return this[_nextEventLoop](dart.fn(() => {
        this[_currentEntryIndex] = dart.notNull(this[_currentEntryIndex]) + dart.notNull(count);
        if (dart.test(this.withinAppHistory)) {
          this[_firePopStateEvent]();
        }
        ;
      }, T$.VoidTovoid()));
    }
    addPopStateListener(fn) {
      if (fn == null) dart.nullFailed(I[362], 128, 63, "fn");
      this.listeners[$add](fn);
      return dart.fn(() => {
        async.scheduleMicrotask(dart.fn(() => this.listeners[$remove](fn), T$.VoidTovoid()));
      }, T$.VoidTovoid());
    }
    [_nextEventLoop](callback) {
      if (callback == null) dart.nullFailed(I[362], 139, 47, "callback");
      return G.FutureOfvoid().delayed(core.Duration.zero).then(T$.void(), dart.fn(_ => callback(), T$12.voidTovoid()));
    }
    [_firePopStateEvent]() {
      if (!dart.test(this.withinAppHistory)) dart.assertFailed(null, I[362], 147, 12, "withinAppHistory");
      for (let i = 0; i < dart.notNull(this.listeners[$length]); i = i + 1) {
        this.listeners[$_get](i)(this.currentEntry.state);
      }
      ;
    }
    prepareExternalUrl(internalUrl) {
      if (internalUrl == null) dart.nullFailed(I[362], 158, 36, "internalUrl");
      return internalUrl;
    }
    toString() {
      let lines = G.JSArrayOfString().of([]);
      for (let i = 0; i < dart.notNull(this.history[$length]); i = i + 1) {
        let entry = this.history[$_get](i);
        lines[$add](this[_currentEntryIndex] === i ? "* " + dart.str(entry) : "  " + dart.str(entry));
      }
      return dart.str(dart.runtimeType(this)) + ": [\n" + dart.str(lines[$join]("\n")) + "\n]";
    }
  };
  (_engine.TestUrlStrategy.fromEntry = function(initialEntry) {
    if (initialEntry == null) dart.nullFailed(I[362], 38, 46, "initialEntry");
    this[listeners] = G$.JSArrayOfObjectNTovoid().of([]);
    this[_currentEntryIndex] = 0;
    this[history] = G$.JSArrayOfTestHistoryEntry().of([initialEntry]);
    ;
  }).prototype = _engine.TestUrlStrategy.prototype;
  dart.addRtiResources(_engine.TestUrlStrategy, ["_engine|TestUrlStrategy", "ui_web|UrlStrategy"]);
  dart.setMethodSignature(_engine.TestUrlStrategy, () => dart.global.Object.setPrototypeOf({
    getPath: T$.VoidToString(),
    getState: T$.VoidTodynamic(),
    pushState: T$12.dynamicAndStringAndStringTovoid(),
    replaceState: T$5.dynamicAndStringAndStringNTovoid(),
    simulateUserTypingUrl: T$12.StringToFutureOfvoid(),
    go: T$9.intToFutureOfvoid(),
    addPopStateListener: T$9.FnToFn$6(),
    [_nextEventLoop]: T$12.FnToFutureOfvoid$3(),
    [_firePopStateEvent]: T$.VoidTovoid(),
    prepareExternalUrl: T$.StringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TestUrlStrategy))));
  dart.setStaticMethodSignature(_engine.TestUrlStrategy, () => ['new']);
  dart.setGetterSignature(_engine.TestUrlStrategy, () => dart.global.Object.setPrototypeOf({
    currentEntryIndex: T$.int(),
    currentEntry: T$12.TestHistoryEntry(),
    withinAppHistory: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.TestUrlStrategy))));
  dart.setSetterSignature(_engine.TestUrlStrategy, () => dart.global.Object.setPrototypeOf({currentEntry: T$12.TestHistoryEntry()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.TestUrlStrategy))));
  dart.setLibraryUri(_engine.TestUrlStrategy, I[220]);
  dart.setFieldSignature(_engine.TestUrlStrategy, () => dart.global.Object.setPrototypeOf({
    [_currentEntryIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    history: {type: T$12.ListOfTestHistoryEntry(), isConst: false, isFinal: true, libraryUri: I[11]},
    listeners: {type: T$12.ListOfObjectNTovoid$1(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TestUrlStrategy))));
  dart.defineExtensionMethods(_engine.TestUrlStrategy, ['toString']);
  var spans$ = dart.privateName(_engine, "CanvasParagraph.spans");
  var paragraphStyle$ = dart.privateName(_engine, "CanvasParagraph.paragraphStyle");
  var plainText$ = dart.privateName(_engine, "CanvasParagraph.plainText");
  var canDrawOnCanvas$ = dart.privateName(_engine, "CanvasParagraph.canDrawOnCanvas");
  var isLaidOut = dart.privateName(_engine, "CanvasParagraph.isLaidOut");
  var _lastUsedConstraints = dart.privateName(_engine, "_lastUsedConstraints");
  var __CanvasParagraph__layoutService = dart.privateName(_engine, "_#CanvasParagraph#_layoutService");
  var __CanvasParagraph__layoutService_isSet = dart.privateName(_engine, "_#CanvasParagraph#_layoutService#isSet");
  var __CanvasParagraph__paintService = dart.privateName(_engine, "_#CanvasParagraph#_paintService");
  var __CanvasParagraph__paintService_isSet = dart.privateName(_engine, "_#CanvasParagraph#_paintService#isSet");
  var _cachedDomElement = dart.privateName(_engine, "_cachedDomElement");
  var _layoutService = dart.privateName(_engine, "_layoutService");
  var _paintService = dart.privateName(_engine, "_paintService");
  var _createDomElement = dart.privateName(_engine, "_createDomElement");
  var _findLine = dart.privateName(_engine, "_findLine");
  _engine.CanvasParagraph = class CanvasParagraph extends core.Object {
    get spans() {
      return this[spans$];
    }
    set spans(value) {
      super.spans = value;
    }
    get paragraphStyle() {
      return this[paragraphStyle$];
    }
    set paragraphStyle(value) {
      super.paragraphStyle = value;
    }
    get plainText() {
      return this[plainText$];
    }
    set plainText(value) {
      super.plainText = value;
    }
    get canDrawOnCanvas() {
      return this[canDrawOnCanvas$];
    }
    set canDrawOnCanvas(value) {
      super.canDrawOnCanvas = value;
    }
    get isLaidOut() {
      return this[isLaidOut];
    }
    set isLaidOut(value) {
      if (value == null) dart.nullFailed(I[363], 72, 8, "isLaidOut");
      this[isLaidOut] = value;
    }
    static ['_#new#tearOff'](spans, opts) {
      if (spans == null) dart.nullFailed(I[363], 21, 10, "spans");
      let paragraphStyle = opts && 'paragraphStyle' in opts ? opts.paragraphStyle : null;
      if (paragraphStyle == null) dart.nullFailed(I[363], 22, 19, "paragraphStyle");
      let plainText = opts && 'plainText' in opts ? opts.plainText : null;
      if (plainText == null) dart.nullFailed(I[363], 23, 19, "plainText");
      let canDrawOnCanvas = opts && 'canDrawOnCanvas' in opts ? opts.canDrawOnCanvas : null;
      if (canDrawOnCanvas == null) dart.nullFailed(I[363], 24, 19, "canDrawOnCanvas");
      return new _engine.CanvasParagraph.new(spans, {paragraphStyle: paragraphStyle, plainText: plainText, canDrawOnCanvas: canDrawOnCanvas});
    }
    get width() {
      return this[_layoutService].width;
    }
    get height() {
      return this[_layoutService].height;
    }
    get longestLine() {
      let t$36626, t$36626$;
      t$36626$ = (t$36626 = this[_layoutService].longestLine, t$36626 == null ? null : t$36626.width);
      return t$36626$ == null ? 0.0 : t$36626$;
    }
    get minIntrinsicWidth() {
      return this[_layoutService].minIntrinsicWidth;
    }
    get maxIntrinsicWidth() {
      return this[_layoutService].maxIntrinsicWidth;
    }
    get alphabeticBaseline() {
      return this[_layoutService].alphabeticBaseline;
    }
    get ideographicBaseline() {
      return this[_layoutService].ideographicBaseline;
    }
    get didExceedMaxLines() {
      return this[_layoutService].didExceedMaxLines;
    }
    get lines() {
      return this[_layoutService].lines;
    }
    get paintBounds() {
      return this[_layoutService].paintBounds;
    }
    get [_layoutService]() {
      let t$36627;
      if (!dart.test(this[__CanvasParagraph__layoutService_isSet])) {
        let t$36626 = new _engine.TextLayoutService.new(this);
        if (dart.test(this[__CanvasParagraph__layoutService_isSet])) dart.throw(new _internal.LateError.fieldADI("_layoutService"));
        this[__CanvasParagraph__layoutService] = t$36626;
        this[__CanvasParagraph__layoutService_isSet] = true;
      }
      t$36627 = this[__CanvasParagraph__layoutService];
      return t$36627;
    }
    get [_paintService]() {
      let t$36628;
      if (!dart.test(this[__CanvasParagraph__paintService_isSet])) {
        let t$36627 = new _engine.TextPaintService.new(this);
        if (dart.test(this[__CanvasParagraph__paintService_isSet])) dart.throw(new _internal.LateError.fieldADI("_paintService"));
        this[__CanvasParagraph__paintService] = t$36627;
        this[__CanvasParagraph__paintService_isSet] = true;
      }
      t$36628 = this[__CanvasParagraph__paintService];
      return t$36628;
    }
    layout(constraints) {
      let t$36631;
      if (constraints == null) dart.nullFailed(I[363], 80, 39, "constraints");
      if (dart.equals(constraints, this[_lastUsedConstraints])) {
        return;
      }
      let stopwatch = null;
      let t$36$35stopwatch$35isSet = false;
      function t$36$35stopwatch$35get() {
        return t$36$35stopwatch$35isSet ? stopwatch : dart.throw(new _internal.LateError.localNI("stopwatch"));
      }
      function t$36$35stopwatch$35set(stopwatch$35param) {
        if (stopwatch$35param == null) dart.nullFailed(I[363], 85, 20, "stopwatch#param");
        t$36$35stopwatch$35isSet = true;
        return stopwatch = stopwatch$35param;
      }
      if (dart.test(_engine.Profiler.isBenchmarkMode)) {
        t$36$35stopwatch$35set((t$36631 = new core.Stopwatch.new(), (() => {
          t$36631.start();
          return t$36631;
        })()));
      }
      this[_layoutService].performLayout(constraints);
      if (dart.test(_engine.Profiler.isBenchmarkMode)) {
        t$36$35stopwatch$35get().stop();
        _engine.Profiler.instance.benchmark("text_layout", t$36$35stopwatch$35get().elapsedMicroseconds[$toDouble]());
      }
      this.isLaidOut = true;
      this[_lastUsedConstraints] = constraints;
      this[_cachedDomElement] = null;
    }
    get hasArbitraryPaint() {
      return true;
    }
    paint(canvas, offset) {
      if (canvas == null) dart.nullFailed(I[363], 108, 27, "canvas");
      if (offset == null) dart.nullFailed(I[363], 108, 45, "offset");
      this[_paintService].paint(canvas, offset);
    }
    toDomElement() {
      let t$36631;
      if (!dart.test(this.isLaidOut)) dart.assertFailed(null, I[363], 119, 12, "isLaidOut");
      let domElement = this[_cachedDomElement];
      if (domElement == null) {
        t$36631 = this[_cachedDomElement];
        return t$36631 == null ? this[_cachedDomElement] = this[_createDomElement]() : t$36631;
      }
      return T$9.DomElement()[_as](_engine['DomNodeExtension|cloneNode'](domElement, true));
    }
    [_createDomElement]() {
      let t$36631;
      let rootElement = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-paragraph");
      let cssStyle = js_util.getProperty(T$9.DomCSSStyleDeclaration(), rootElement, "style");
      t$36631 = cssStyle;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36631, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#whiteSpace'](t$36631, "pre");
        return t$36631;
      })();
      for (let i = 0; i < dart.notNull(this.lines[$length]); i = i + 1) {
        let line = this.lines[$_get](i);
        for (let fragment of line.fragments) {
          if (dart.test(fragment.isPlaceholder)) {
            continue;
          }
          let text = fragment.getText(this);
          if (text[$isEmpty]) {
            continue;
          }
          let spanElement = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-span");
          if (fragment.textDirection == ui.TextDirection.rtl) {
            _engine['DomElementExtension|setAttribute'](spanElement, "dir", "rtl");
          }
          _engine.applyTextStyleToElement({element: spanElement, style: fragment.style});
          _engine._positionSpanElement(spanElement, line, fragment);
          _engine['DomElementExtension|appendText'](spanElement, text);
          rootElement.append(spanElement);
        }
      }
      return rootElement;
    }
    getBoxesForPlaceholders() {
      return this[_layoutService].getBoxesForPlaceholders();
    }
    getBoxesForRange(start, end, opts) {
      if (start == null) dart.nullFailed(I[363], 175, 9, "start");
      if (end == null) dart.nullFailed(I[363], 176, 9, "end");
      let boxHeightStyle = opts && 'boxHeightStyle' in opts ? opts.boxHeightStyle : C[791] || CT.C791;
      if (boxHeightStyle == null) dart.nullFailed(I[363], 177, 23, "boxHeightStyle");
      let boxWidthStyle = opts && 'boxWidthStyle' in opts ? opts.boxWidthStyle : C[798] || CT.C798;
      if (boxWidthStyle == null) dart.nullFailed(I[363], 178, 22, "boxWidthStyle");
      return this[_layoutService].getBoxesForRange(start, end, boxHeightStyle, boxWidthStyle);
    }
    getPositionForOffset(offset) {
      if (offset == null) dart.nullFailed(I[363], 184, 50, "offset");
      return this[_layoutService].getPositionForOffset(offset);
    }
    getClosestGlyphInfoForOffset(offset) {
      if (offset == null) dart.nullFailed(I[363], 189, 56, "offset");
      return this[_layoutService].getClosestGlyphInfo(offset);
    }
    getGlyphInfoAt(codeUnitOffset) {
      if (codeUnitOffset == null) dart.nullFailed(I[363], 192, 36, "codeUnitOffset");
      let lineNumber = this[_findLine](codeUnitOffset, 0, this.numberOfLines);
      if (lineNumber == null) {
        return null;
      }
      let line = this.lines[$_get](lineNumber);
      let range = line.getCharacterRangeAt(codeUnitOffset);
      if (range == null) {
        return null;
      }
      if (!dart.test(line.overlapsWith(range.start, range.end))) dart.assertFailed(null, I[363], 202, 12, "line.overlapsWith(range.start, range.end)");
      for (let fragment of line.fragments) {
        if (dart.test(fragment.overlapsWith(range.start, range.end))) {
          let textBox = fragment.toTextBox({start: range.start, end: range.end});
          return new ui.GlyphInfo.new(textBox.toRect(), range, textBox.direction);
        }
      }
      if (!false) dart.assertFailed("This should not be reachable.", I[363], 213, 12, "false");
      return null;
    }
    getWordBoundary(position) {
      if (position == null) dart.nullFailed(I[363], 218, 48, "position");
      let characterPosition = null;
      switch (position.affinity) {
        case C[787] || CT.C787:
          {
            characterPosition = dart.notNull(position.offset) - 1;
            break;
          }
        case C[788] || CT.C788:
          {
            characterPosition = position.offset;
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
      let start = _engine.WordBreaker.prevBreakIndex(this.plainText, dart.notNull(characterPosition) + 1);
      let end = _engine.WordBreaker.nextBreakIndex(this.plainText, characterPosition);
      return new ui.TextRange.new({start: start, end: end});
    }
    getLineBoundary(position) {
      if (position == null) dart.nullFailed(I[363], 232, 48, "position");
      if (dart.test(this.lines[$isEmpty])) {
        return ui.TextRange.empty;
      }
      let lineNumber = this.getLineNumberAt(position.offset);
      let line = lineNumber != null ? this.lines[$_get](lineNumber) : this.lines[$last];
      return new ui.TextRange.new({start: line.startIndex, end: dart.notNull(line.endIndex) - dart.notNull(line.trailingNewlines)});
    }
    computeLineMetrics() {
      return this.lines[$map](T$12.EngineLineMetrics(), dart.fn(line => {
        if (line == null) dart.nullFailed(I[363], 244, 37, "line");
        return line.lineMetrics;
      }, T$12.ParagraphLineToEngineLineMetrics()))[$toList]();
    }
    getLineMetricsAt(lineNumber) {
      if (lineNumber == null) dart.nullFailed(I[363], 248, 43, "lineNumber");
      return 0 <= dart.notNull(lineNumber) && dart.notNull(lineNumber) < dart.notNull(this.lines[$length]) ? this.lines[$_get](lineNumber).lineMetrics : null;
    }
    get numberOfLines() {
      return this.lines[$length];
    }
    getLineNumberAt(codeUnitOffset) {
      if (codeUnitOffset == null) dart.nullFailed(I[363], 258, 28, "codeUnitOffset");
      return this[_findLine](codeUnitOffset, 0, this.lines[$length]);
    }
    [_findLine](codeUnitOffset, startLine, endLine) {
      let t$36631;
      if (codeUnitOffset == null) dart.nullFailed(I[363], 260, 22, "codeUnitOffset");
      if (startLine == null) dart.nullFailed(I[363], 260, 42, "startLine");
      if (endLine == null) dart.nullFailed(I[363], 260, 57, "endLine");
      if (!(dart.notNull(endLine) <= dart.notNull(this.lines[$length]))) dart.assertFailed(null, I[363], 261, 12, "endLine <= lines.length");
      let isOutOfBounds = dart.notNull(endLine) <= dart.notNull(startLine) || dart.notNull(codeUnitOffset) < dart.notNull(this.lines[$_get](startLine).startIndex) || dart.notNull(endLine) < dart.notNull(this.numberOfLines) && dart.notNull(this.lines[$_get](endLine).startIndex) <= dart.notNull(codeUnitOffset);
      if (isOutOfBounds) {
        return null;
      }
      if (endLine === dart.notNull(startLine) + 1) {
        if (!(dart.notNull(this.lines[$_get](startLine).startIndex) <= dart.notNull(codeUnitOffset))) dart.assertFailed(null, I[363], 270, 14, "lines[startLine].startIndex <= codeUnitOffset");
        if (!(endLine == this.numberOfLines || dart.notNull(codeUnitOffset) < dart.notNull(this.lines[$_get](endLine).startIndex))) dart.assertFailed(null, I[363], 271, 14, "endLine == numberOfLines || codeUnitOffset < lines[endLine].startIndex");
        return dart.notNull(codeUnitOffset) >= dart.notNull(this.lines[$_get](startLine).visibleEndIndex) ? null : startLine;
      }
      let midIndex = ((dart.notNull(startLine) + dart.notNull(endLine)) / 2)[$truncate]();
      t$36631 = this[_findLine](codeUnitOffset, midIndex, endLine);
      return t$36631 == null ? this[_findLine](codeUnitOffset, startLine, midIndex) : t$36631;
    }
    dispose() {
      this[_disposed] = true;
    }
    get debugDisposed() {
      let result = null;
      if (!dart.test(dart.fn(() => {
        result = this[_disposed];
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[363], 293, 12, "() {\n      result = _disposed;\n      return true;\n    }()");
      if (result != null) {
        return dart.nullCheck(result);
      }
      dart.throw(new core.StateError.new("Paragraph.debugDisposed is only avialalbe when asserts are enabled."));
    }
  };
  (_engine.CanvasParagraph.new = function(spans, opts) {
    if (spans == null) dart.nullFailed(I[363], 21, 10, "spans");
    let paragraphStyle = opts && 'paragraphStyle' in opts ? opts.paragraphStyle : null;
    if (paragraphStyle == null) dart.nullFailed(I[363], 22, 19, "paragraphStyle");
    let plainText = opts && 'plainText' in opts ? opts.plainText : null;
    if (plainText == null) dart.nullFailed(I[363], 23, 19, "plainText");
    let canDrawOnCanvas = opts && 'canDrawOnCanvas' in opts ? opts.canDrawOnCanvas : null;
    if (canDrawOnCanvas == null) dart.nullFailed(I[363], 24, 19, "canDrawOnCanvas");
    this[isLaidOut] = false;
    this[_lastUsedConstraints] = null;
    this[__CanvasParagraph__layoutService] = null;
    this[__CanvasParagraph__layoutService_isSet] = false;
    this[__CanvasParagraph__paintService] = null;
    this[__CanvasParagraph__paintService_isSet] = false;
    this[_cachedDomElement] = null;
    this[_disposed] = false;
    this[spans$] = spans;
    this[paragraphStyle$] = paragraphStyle;
    this[plainText$] = plainText;
    this[canDrawOnCanvas$] = canDrawOnCanvas;
    if (!dart.test(spans[$isNotEmpty])) dart.assertFailed(null, I[363], 25, 15, "spans.isNotEmpty");
    ;
  }).prototype = _engine.CanvasParagraph.prototype;
  dart.addRtiResources(_engine.CanvasParagraph, ["_engine|CanvasParagraph", "ui|Paragraph"]);
  dart.setMethodSignature(_engine.CanvasParagraph, () => dart.global.Object.setPrototypeOf({
    layout: T$10.ParagraphConstraintsTovoid(),
    paint: T$12.BitmapCanvasAndOffsetTovoid(),
    toDomElement: T$10.VoidToDomElement(),
    [_createDomElement]: T$10.VoidToDomElement(),
    getBoxesForPlaceholders: T$10.VoidToListOfTextBox(),
    getBoxesForRange: T$10.intAndint__ToListOfTextBox(),
    getPositionForOffset: T$10.OffsetToTextPosition(),
    getClosestGlyphInfoForOffset: T$10.OffsetToGlyphInfoN(),
    getGlyphInfoAt: T$10.intToGlyphInfoN(),
    getWordBoundary: T$10.TextPositionToTextRange(),
    getLineBoundary: T$10.TextPositionToTextRange(),
    computeLineMetrics: T$12.VoidToListOfEngineLineMetrics(),
    getLineMetricsAt: T$12.intToEngineLineMetricsN(),
    getLineNumberAt: T$10.intTointN(),
    [_findLine]: T$12.intAndintAndintTointN(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CanvasParagraph))));
  dart.setGetterSignature(_engine.CanvasParagraph, () => dart.global.Object.setPrototypeOf({
    width: T$.double(),
    height: T$.double(),
    longestLine: T$.double(),
    minIntrinsicWidth: T$.double(),
    maxIntrinsicWidth: T$.double(),
    alphabeticBaseline: T$.double(),
    ideographicBaseline: T$.double(),
    didExceedMaxLines: T$.bool(),
    lines: T$12.ListOfParagraphLine(),
    paintBounds: T$8.Rect(),
    [_layoutService]: T$12.TextLayoutService(),
    [_paintService]: T$12.TextPaintService(),
    hasArbitraryPaint: T$.bool(),
    numberOfLines: T$.int(),
    debugDisposed: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CanvasParagraph))));
  dart.setLibraryUri(_engine.CanvasParagraph, I[220]);
  dart.setFieldSignature(_engine.CanvasParagraph, () => dart.global.Object.setPrototypeOf({
    spans: {type: T$12.ListOfParagraphSpan(), isConst: false, isFinal: true, libraryUri: I[11]},
    paragraphStyle: {type: T$11.EngineParagraphStyle(), isConst: false, isFinal: true, libraryUri: I[220]},
    plainText: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    canDrawOnCanvas: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    isLaidOut: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lastUsedConstraints]: {type: T$12.ParagraphConstraintsN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [__CanvasParagraph__layoutService]: {type: T$12.TextLayoutServiceN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CanvasParagraph__layoutService_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CanvasParagraph__paintService]: {type: T$12.TextPaintServiceN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CanvasParagraph__paintService_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_cachedDomElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_disposed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CanvasParagraph))));
  var style$0 = dart.privateName(_engine, "ParagraphSpan.style");
  var start$2 = dart.privateName(_engine, "ParagraphSpan.start");
  var end$1 = dart.privateName(_engine, "ParagraphSpan.end");
  _engine.ParagraphSpan = class ParagraphSpan extends core.Object {
    get style() {
      return this[style$0];
    }
    set style(value) {
      super.style = value;
    }
    get start() {
      return this[start$2];
    }
    set start(value) {
      super.start = value;
    }
    get end() {
      return this[end$1];
    }
    set end(value) {
      super.end = value;
    }
    static ['_#new#tearOff'](opts) {
      let style = opts && 'style' in opts ? opts.style : null;
      if (style == null) dart.nullFailed(I[363], 329, 19, "style");
      let start = opts && 'start' in opts ? opts.start : null;
      if (start == null) dart.nullFailed(I[363], 330, 19, "start");
      let end = opts && 'end' in opts ? opts.end : null;
      if (end == null) dart.nullFailed(I[363], 331, 19, "end");
      return new _engine.ParagraphSpan.new({style: style, start: start, end: end});
    }
  };
  (_engine.ParagraphSpan.new = function(opts) {
    let style = opts && 'style' in opts ? opts.style : null;
    if (style == null) dart.nullFailed(I[363], 329, 19, "style");
    let start = opts && 'start' in opts ? opts.start : null;
    if (start == null) dart.nullFailed(I[363], 330, 19, "start");
    let end = opts && 'end' in opts ? opts.end : null;
    if (end == null) dart.nullFailed(I[363], 331, 19, "end");
    this[style$0] = style;
    this[start$2] = start;
    this[end$1] = end;
    ;
  }).prototype = _engine.ParagraphSpan.prototype;
  dart.addRtiResources(_engine.ParagraphSpan, ["_engine|ParagraphSpan"]);
  dart.setLibraryUri(_engine.ParagraphSpan, I[220]);
  dart.setFieldSignature(_engine.ParagraphSpan, () => dart.global.Object.setPrototypeOf({
    style: {type: T$12.EngineTextStyle(), isConst: false, isFinal: true, libraryUri: I[220]},
    start: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    end: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ParagraphSpan))));
  var style$1 = dart.privateName(_engine, "PlaceholderSpan.style");
  var start$3 = dart.privateName(_engine, "PlaceholderSpan.start");
  var end$2 = dart.privateName(_engine, "PlaceholderSpan.end");
  var width$7 = dart.privateName(_engine, "ParagraphPlaceholder.width");
  var height$7 = dart.privateName(_engine, "ParagraphPlaceholder.height");
  var alignment$ = dart.privateName(_engine, "ParagraphPlaceholder.alignment");
  var baselineOffset$ = dart.privateName(_engine, "ParagraphPlaceholder.baselineOffset");
  var baseline$ = dart.privateName(_engine, "ParagraphPlaceholder.baseline");
  _engine.ParagraphPlaceholder = class ParagraphPlaceholder extends core.Object {
    get width() {
      return this[width$7];
    }
    set width(value) {
      super.width = value;
    }
    get height() {
      return this[height$7];
    }
    set height(value) {
      super.height = value;
    }
    get alignment() {
      return this[alignment$];
    }
    set alignment(value) {
      super.alignment = value;
    }
    get baselineOffset() {
      return this[baselineOffset$];
    }
    set baselineOffset(value) {
      super.baselineOffset = value;
    }
    get baseline() {
      return this[baseline$];
    }
    set baseline(value) {
      super.baseline = value;
    }
    static ['_#new#tearOff'](width, height, alignment, opts) {
      if (width == null) dart.nullFailed(I[364], 863, 10, "width");
      if (height == null) dart.nullFailed(I[364], 864, 10, "height");
      if (alignment == null) dart.nullFailed(I[364], 865, 10, "alignment");
      let baselineOffset = opts && 'baselineOffset' in opts ? opts.baselineOffset : null;
      if (baselineOffset == null) dart.nullFailed(I[364], 866, 19, "baselineOffset");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[364], 867, 19, "baseline");
      return new _engine.ParagraphPlaceholder.new(width, height, alignment, {baselineOffset: baselineOffset, baseline: baseline});
    }
  };
  (_engine.ParagraphPlaceholder.new = function(width, height, alignment, opts) {
    if (width == null) dart.nullFailed(I[364], 863, 10, "width");
    if (height == null) dart.nullFailed(I[364], 864, 10, "height");
    if (alignment == null) dart.nullFailed(I[364], 865, 10, "alignment");
    let baselineOffset = opts && 'baselineOffset' in opts ? opts.baselineOffset : null;
    if (baselineOffset == null) dart.nullFailed(I[364], 866, 19, "baselineOffset");
    let baseline = opts && 'baseline' in opts ? opts.baseline : null;
    if (baseline == null) dart.nullFailed(I[364], 867, 19, "baseline");
    this[width$7] = width;
    this[height$7] = height;
    this[alignment$] = alignment;
    this[baselineOffset$] = baselineOffset;
    this[baseline$] = baseline;
    ;
  }).prototype = _engine.ParagraphPlaceholder.prototype;
  dart.addRtiResources(_engine.ParagraphPlaceholder, ["_engine|ParagraphPlaceholder"]);
  dart.setLibraryUri(_engine.ParagraphPlaceholder, I[220]);
  dart.setFieldSignature(_engine.ParagraphPlaceholder, () => dart.global.Object.setPrototypeOf({
    width: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    alignment: {type: T$9.PlaceholderAlignment(), isConst: false, isFinal: true, libraryUri: I[198]},
    baselineOffset: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    baseline: {type: T$9.TextBaseline(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ParagraphPlaceholder))));
  _engine.PlaceholderSpan = class PlaceholderSpan extends _engine.ParagraphPlaceholder {
    get style() {
      return this[style$1];
    }
    set style(value) {
      super.style = value;
    }
    get start() {
      return this[start$3];
    }
    set start(value) {
      super.start = value;
    }
    get end() {
      return this[end$2];
    }
    set end(value) {
      super.end = value;
    }
    static ['_#new#tearOff'](style, start, end, width, height, alignment, opts) {
      if (style == null) dart.nullFailed(I[363], 346, 10, "style");
      if (start == null) dart.nullFailed(I[363], 347, 10, "start");
      if (end == null) dart.nullFailed(I[363], 348, 10, "end");
      if (width == null) dart.nullFailed(I[363], 349, 12, "width");
      if (height == null) dart.nullFailed(I[363], 350, 12, "height");
      if (alignment == null) dart.nullFailed(I[363], 351, 29, "alignment");
      let baselineOffset = opts && 'baselineOffset' in opts ? opts.baselineOffset : null;
      if (baselineOffset == null) dart.nullFailed(I[363], 352, 21, "baselineOffset");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[363], 353, 30, "baseline");
      return new _engine.PlaceholderSpan.new(style, start, end, width, height, alignment, {baselineOffset: baselineOffset, baseline: baseline});
    }
  };
  (_engine.PlaceholderSpan.new = function(style, start, end, width, height, alignment, opts) {
    if (style == null) dart.nullFailed(I[363], 346, 10, "style");
    if (start == null) dart.nullFailed(I[363], 347, 10, "start");
    if (end == null) dart.nullFailed(I[363], 348, 10, "end");
    if (width == null) dart.nullFailed(I[363], 349, 12, "width");
    if (height == null) dart.nullFailed(I[363], 350, 12, "height");
    if (alignment == null) dart.nullFailed(I[363], 351, 29, "alignment");
    let baselineOffset = opts && 'baselineOffset' in opts ? opts.baselineOffset : null;
    if (baselineOffset == null) dart.nullFailed(I[363], 352, 21, "baselineOffset");
    let baseline = opts && 'baseline' in opts ? opts.baseline : null;
    if (baseline == null) dart.nullFailed(I[363], 353, 30, "baseline");
    this[style$1] = style;
    this[start$3] = start;
    this[end$2] = end;
    dart.global.Object.getPrototypeOf(_engine.PlaceholderSpan).new.call(this, width, height, alignment, {baselineOffset: baselineOffset, baseline: baseline});
    ;
  }).prototype = _engine.PlaceholderSpan.prototype;
  dart.addRtiResources(_engine.PlaceholderSpan, ["_engine|PlaceholderSpan", "_engine|ParagraphSpan"]);
  dart.setLibraryUri(_engine.PlaceholderSpan, I[220]);
  dart.setFieldSignature(_engine.PlaceholderSpan, () => dart.global.Object.setPrototypeOf({
    style: {type: T$12.EngineTextStyle(), isConst: false, isFinal: true, libraryUri: I[220]},
    start: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    end: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.PlaceholderSpan))));
  var _cachedStyle = dart.privateName(_engine, "_cachedStyle");
  var _decoration = dart.privateName(_engine, "_decoration");
  var _decorationColor = dart.privateName(_engine, "_decorationColor");
  var _decorationStyle = dart.privateName(_engine, "_decorationStyle");
  var _decorationThickness = dart.privateName(_engine, "_decorationThickness");
  var _textBaseline = dart.privateName(_engine, "_textBaseline");
  var _fontFeatures = dart.privateName(_engine, "_fontFeatures");
  var _fontVariations = dart.privateName(_engine, "_fontVariations");
  var _letterSpacing = dart.privateName(_engine, "_letterSpacing");
  var _wordSpacing = dart.privateName(_engine, "_wordSpacing");
  var _background = dart.privateName(_engine, "_background");
  var _foreground = dart.privateName(_engine, "_foreground");
  var _shadows = dart.privateName(_engine, "_shadows");
  _engine.StyleNode = class StyleNode extends core.Object {
    createChild(style) {
      if (style == null) dart.nullFailed(I[363], 384, 46, "style");
      return new _engine.ChildStyleNode.new({parent: this, style: style});
    }
    resolveStyle() {
      let t$36631;
      t$36631 = this[_cachedStyle];
      return t$36631 == null ? this[_cachedStyle] = new _engine.EngineTextStyle.only({color: this[_color], decoration: this[_decoration], decorationColor: this[_decorationColor], decorationStyle: this[_decorationStyle], decorationThickness: this[_decorationThickness], fontWeight: this[_fontWeight], fontStyle: this[_fontStyle], textBaseline: this[_textBaseline], fontFamily: this[_fontFamily], fontFamilyFallback: this[_fontFamilyFallback], fontFeatures: this[_fontFeatures], fontVariations: this[_fontVariations], fontSize: this[_fontSize], letterSpacing: this[_letterSpacing], wordSpacing: this[_wordSpacing], height: this[_height$0], leadingDistribution: this[_leadingDistribution], locale: this[_locale], background: this[_background], foreground: this[_foreground], shadows: this[_shadows]}) : t$36631;
    }
  };
  (_engine.StyleNode.new = function() {
    this[_cachedStyle] = null;
    ;
  }).prototype = _engine.StyleNode.prototype;
  dart.addRtiResources(_engine.StyleNode, ["_engine|StyleNode"]);
  dart.setMethodSignature(_engine.StyleNode, () => dart.global.Object.setPrototypeOf({
    createChild: T$12.EngineTextStyleToChildStyleNode(),
    resolveStyle: T$12.VoidToEngineTextStyle()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.StyleNode))));
  dart.setLibraryUri(_engine.StyleNode, I[220]);
  dart.setFieldSignature(_engine.StyleNode, () => dart.global.Object.setPrototypeOf({[_cachedStyle]: {type: T$12.EngineTextStyleN(), isConst: false, isFinal: false, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.StyleNode))));
  var parent$2 = dart.privateName(_engine, "ChildStyleNode.parent");
  var style$2 = dart.privateName(_engine, "ChildStyleNode.style");
  _engine.ChildStyleNode = class ChildStyleNode extends _engine.StyleNode {
    get parent() {
      return this[parent$2];
    }
    set parent(value) {
      super.parent = value;
    }
    get style() {
      return this[style$2];
    }
    set style(value) {
      super.style = value;
    }
    static ['_#new#tearOff'](opts) {
      let parent = opts && 'parent' in opts ? opts.parent : null;
      if (parent == null) dart.nullFailed(I[363], 446, 33, "parent");
      let style = opts && 'style' in opts ? opts.style : null;
      if (style == null) dart.nullFailed(I[363], 446, 55, "style");
      return new _engine.ChildStyleNode.new({parent: parent, style: style});
    }
    get [_color]() {
      let t$36631;
      t$36631 = this.style.color;
      return t$36631 == null ? this[_foreground] == null ? this.parent[_color] : null : t$36631;
    }
    get [_decoration]() {
      let t$36631;
      t$36631 = this.style.decoration;
      return t$36631 == null ? this.parent[_decoration] : t$36631;
    }
    get [_decorationColor]() {
      let t$36631;
      t$36631 = this.style.decorationColor;
      return t$36631 == null ? this.parent[_decorationColor] : t$36631;
    }
    get [_decorationStyle]() {
      let t$36631;
      t$36631 = this.style.decorationStyle;
      return t$36631 == null ? this.parent[_decorationStyle] : t$36631;
    }
    get [_decorationThickness]() {
      let t$36631;
      t$36631 = this.style.decorationThickness;
      return t$36631 == null ? this.parent[_decorationThickness] : t$36631;
    }
    get [_fontWeight]() {
      let t$36631;
      t$36631 = this.style.fontWeight;
      return t$36631 == null ? this.parent[_fontWeight] : t$36631;
    }
    get [_fontStyle]() {
      let t$36631;
      t$36631 = this.style.fontStyle;
      return t$36631 == null ? this.parent[_fontStyle] : t$36631;
    }
    get [_textBaseline]() {
      let t$36631;
      t$36631 = this.style.textBaseline;
      return t$36631 == null ? this.parent[_textBaseline] : t$36631;
    }
    get [_fontFamilyFallback]() {
      let t$36631;
      t$36631 = this.style.fontFamilyFallback;
      return t$36631 == null ? this.parent[_fontFamilyFallback] : t$36631;
    }
    get [_fontFeatures]() {
      let t$36631;
      t$36631 = this.style.fontFeatures;
      return t$36631 == null ? this.parent[_fontFeatures] : t$36631;
    }
    get [_fontVariations]() {
      let t$36631;
      t$36631 = this.style.fontVariations;
      return t$36631 == null ? this.parent[_fontVariations] : t$36631;
    }
    get [_fontSize]() {
      let t$36631;
      t$36631 = this.style.fontSize;
      return t$36631 == null ? this.parent[_fontSize] : t$36631;
    }
    get [_letterSpacing]() {
      let t$36631;
      t$36631 = this.style.letterSpacing;
      return t$36631 == null ? this.parent[_letterSpacing] : t$36631;
    }
    get [_wordSpacing]() {
      let t$36631;
      t$36631 = this.style.wordSpacing;
      return t$36631 == null ? this.parent[_wordSpacing] : t$36631;
    }
    get [_height$0]() {
      let t$36631;
      return this.style.height === 0 ? null : (t$36631 = this.style.height, t$36631 == null ? this.parent[_height$0] : t$36631);
    }
    get [_leadingDistribution]() {
      let t$36631;
      t$36631 = this.style.leadingDistribution;
      return t$36631 == null ? this.parent[_leadingDistribution] : t$36631;
    }
    get [_locale]() {
      let t$36631;
      t$36631 = this.style.locale;
      return t$36631 == null ? this.parent[_locale] : t$36631;
    }
    get [_background]() {
      let t$36631;
      t$36631 = this.style.background;
      return t$36631 == null ? this.parent[_background] : t$36631;
    }
    get [_foreground]() {
      let t$36631;
      t$36631 = this.style.foreground;
      return t$36631 == null ? this.parent[_foreground] : t$36631;
    }
    get [_shadows]() {
      let t$36631;
      t$36631 = this.style.shadows;
      return t$36631 == null ? this.parent[_shadows] : t$36631;
    }
    get [_fontFamily]() {
      return dart.test(this.style.isFontFamilyProvided) ? this.style.fontFamily : this.parent[_fontFamily];
    }
  };
  (_engine.ChildStyleNode.new = function(opts) {
    let parent = opts && 'parent' in opts ? opts.parent : null;
    if (parent == null) dart.nullFailed(I[363], 446, 33, "parent");
    let style = opts && 'style' in opts ? opts.style : null;
    if (style == null) dart.nullFailed(I[363], 446, 55, "style");
    this[parent$2] = parent;
    this[style$2] = style;
    dart.global.Object.getPrototypeOf(_engine.ChildStyleNode).new.call(this);
    ;
  }).prototype = _engine.ChildStyleNode.prototype;
  dart.addRtiResources(_engine.ChildStyleNode, ["_engine|ChildStyleNode"]);
  dart.setGetterSignature(_engine.ChildStyleNode, () => dart.global.Object.setPrototypeOf({
    [_color]: T$10.ColorN(),
    [_decoration]: T$10.TextDecorationN(),
    [_decorationColor]: T$10.ColorN(),
    [_decorationStyle]: T$10.TextDecorationStyleN(),
    [_decorationThickness]: T$9.doubleN(),
    [_fontWeight]: T$10.FontWeightN(),
    [_fontStyle]: T$10.FontStyleN(),
    [_textBaseline]: T$10.TextBaselineN(),
    [_fontFamilyFallback]: T$.ListNOfString(),
    [_fontFeatures]: T$10.ListNOfFontFeature(),
    [_fontVariations]: T$10.ListNOfFontVariation(),
    [_fontSize]: T$.double(),
    [_letterSpacing]: T$9.doubleN(),
    [_wordSpacing]: T$9.doubleN(),
    [_height$0]: T$9.doubleN(),
    [_leadingDistribution]: T$10.TextLeadingDistributionN(),
    [_locale]: T$10.LocaleN(),
    [_background]: T$12.PaintN(),
    [_foreground]: T$12.PaintN(),
    [_shadows]: T$10.ListNOfShadow(),
    [_fontFamily]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ChildStyleNode))));
  dart.setLibraryUri(_engine.ChildStyleNode, I[220]);
  dart.setFieldSignature(_engine.ChildStyleNode, () => dart.global.Object.setPrototypeOf({
    parent: {type: T$12.StyleNode(), isConst: false, isFinal: true, libraryUri: I[220]},
    style: {type: T$12.EngineTextStyle(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ChildStyleNode))));
  var paragraphStyle$0 = dart.privateName(_engine, "RootStyleNode.paragraphStyle");
  _engine.RootStyleNode = class RootStyleNode extends _engine.StyleNode {
    get paragraphStyle() {
      return this[paragraphStyle$0];
    }
    set paragraphStyle(value) {
      super.paragraphStyle = value;
    }
    static ['_#new#tearOff'](paragraphStyle) {
      if (paragraphStyle == null) dart.nullFailed(I[363], 532, 22, "paragraphStyle");
      return new _engine.RootStyleNode.new(paragraphStyle);
    }
    get [_color]() {
      return null;
    }
    get [_decoration]() {
      return null;
    }
    get [_decorationColor]() {
      return null;
    }
    get [_decorationStyle]() {
      return null;
    }
    get [_decorationThickness]() {
      return null;
    }
    get [_fontWeight]() {
      return this.paragraphStyle.fontWeight;
    }
    get [_fontStyle]() {
      return this.paragraphStyle.fontStyle;
    }
    get [_textBaseline]() {
      return null;
    }
    get [_fontFamily]() {
      let t$36631;
      t$36631 = this.paragraphStyle.fontFamily;
      return t$36631 == null ? "sans-serif" : t$36631;
    }
    get [_fontFamilyFallback]() {
      return null;
    }
    get [_fontFeatures]() {
      return null;
    }
    get [_fontVariations]() {
      return null;
    }
    get [_fontSize]() {
      let t$36631;
      t$36631 = this.paragraphStyle.fontSize;
      return t$36631 == null ? 14 : t$36631;
    }
    get [_letterSpacing]() {
      return null;
    }
    get [_wordSpacing]() {
      return null;
    }
    get [_height$0]() {
      return this.paragraphStyle.height;
    }
    get [_leadingDistribution]() {
      return null;
    }
    get [_locale]() {
      return this.paragraphStyle.locale;
    }
    get [_background]() {
      return null;
    }
    get [_foreground]() {
      return null;
    }
    get [_shadows]() {
      return null;
    }
  };
  (_engine.RootStyleNode.new = function(paragraphStyle) {
    if (paragraphStyle == null) dart.nullFailed(I[363], 532, 22, "paragraphStyle");
    this[paragraphStyle$0] = paragraphStyle;
    dart.global.Object.getPrototypeOf(_engine.RootStyleNode).new.call(this);
    ;
  }).prototype = _engine.RootStyleNode.prototype;
  dart.addRtiResources(_engine.RootStyleNode, ["_engine|RootStyleNode"]);
  dart.setGetterSignature(_engine.RootStyleNode, () => dart.global.Object.setPrototypeOf({
    [_color]: T$10.ColorN(),
    [_decoration]: T$10.TextDecorationN(),
    [_decorationColor]: T$10.ColorN(),
    [_decorationStyle]: T$10.TextDecorationStyleN(),
    [_decorationThickness]: T$9.doubleN(),
    [_fontWeight]: T$10.FontWeightN(),
    [_fontStyle]: T$10.FontStyleN(),
    [_textBaseline]: T$10.TextBaselineN(),
    [_fontFamily]: T$.String(),
    [_fontFamilyFallback]: T$.ListNOfString(),
    [_fontFeatures]: T$10.ListNOfFontFeature(),
    [_fontVariations]: T$10.ListNOfFontVariation(),
    [_fontSize]: T$.double(),
    [_letterSpacing]: T$9.doubleN(),
    [_wordSpacing]: T$9.doubleN(),
    [_height$0]: T$9.doubleN(),
    [_leadingDistribution]: T$10.TextLeadingDistributionN(),
    [_locale]: T$10.LocaleN(),
    [_background]: T$12.PaintN(),
    [_foreground]: T$12.PaintN(),
    [_shadows]: T$10.ListNOfShadow()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.RootStyleNode))));
  dart.setLibraryUri(_engine.RootStyleNode, I[220]);
  dart.setFieldSignature(_engine.RootStyleNode, () => dart.global.Object.setPrototypeOf({paragraphStyle: {type: T$11.EngineParagraphStyle(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RootStyleNode))));
  var _plainTextBuffer = dart.privateName(_engine, "_plainTextBuffer");
  var _spans = dart.privateName(_engine, "_spans");
  var _canDrawOnCanvas = dart.privateName(_engine, "_canDrawOnCanvas");
  var _rootStyleNode = dart.privateName(_engine, "_rootStyleNode");
  var _currentStyleNode = dart.privateName(_engine, "_currentStyleNode");
  var _updateCanDrawOnCanvas = dart.privateName(_engine, "_updateCanDrawOnCanvas");
  _engine.CanvasParagraphBuilder = class CanvasParagraphBuilder extends core.Object {
    static ['_#new#tearOff'](style) {
      if (style == null) dart.nullFailed(I[363], 605, 47, "style");
      return new _engine.CanvasParagraphBuilder.new(style);
    }
    get [_currentStyleNode]() {
      return dart.test(this[_styleStack][$isEmpty]) ? this[_rootStyleNode] : this[_styleStack][$_get](dart.notNull(this[_styleStack][$length]) - 1);
    }
    get placeholderCount() {
      return this[_placeholderCount];
    }
    get placeholderScales() {
      return this[_placeholderScales];
    }
    addPlaceholder(width, height, alignment, opts) {
      let t$36631, t$36631$;
      if (width == null) dart.nullFailed(I[363], 630, 12, "width");
      if (height == null) dart.nullFailed(I[363], 631, 12, "height");
      if (alignment == null) dart.nullFailed(I[363], 632, 29, "alignment");
      let scale = opts && 'scale' in opts ? opts.scale : 1;
      if (scale == null) dart.nullFailed(I[363], 633, 12, "scale");
      let baselineOffset = opts && 'baselineOffset' in opts ? opts.baselineOffset : null;
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (!(!(alignment == ui.PlaceholderAlignment.aboveBaseline || alignment == ui.PlaceholderAlignment.belowBaseline || alignment == ui.PlaceholderAlignment.baseline) || baseline != null)) dart.assertFailed(null, I[363], 638, 12, "!(alignment == ui.PlaceholderAlignment.aboveBaseline ||\n            alignment == ui.PlaceholderAlignment.belowBaseline ||\n            alignment == ui.PlaceholderAlignment.baseline) || baseline != null");
      let start = this[_plainTextBuffer].length;
      this[_plainTextBuffer].write(_engine.placeholderChar);
      let end = this[_plainTextBuffer].length;
      let style = this[_currentStyleNode].resolveStyle();
      this[_updateCanDrawOnCanvas](style);
      this[_placeholderCount] = dart.notNull(this[_placeholderCount]) + 1;
      this[_placeholderScales][$add](scale);
      this[_spans][$add](new _engine.PlaceholderSpan.new(style, start, end, dart.notNull(width) * dart.notNull(scale), dart.notNull(height) * dart.notNull(scale), alignment, {baselineOffset: dart.notNull((t$36631 = baselineOffset, t$36631 == null ? height : t$36631)) * dart.notNull(scale), baseline: (t$36631$ = baseline, t$36631$ == null ? ui.TextBaseline.alphabetic : t$36631$)}));
    }
    pushStyle(style) {
      if (style == null) dart.nullFailed(I[363], 664, 31, "style");
      this[_styleStack][$add](this[_currentStyleNode].createChild(T$12.EngineTextStyle()[_as](style)));
    }
    pop() {
      if (dart.test(this[_styleStack][$isNotEmpty])) {
        this[_styleStack][$removeLast]();
      }
    }
    addText(text) {
      if (text == null) dart.nullFailed(I[363], 678, 23, "text");
      let start = this[_plainTextBuffer].length;
      this[_plainTextBuffer].write(text);
      let end = this[_plainTextBuffer].length;
      let style = this[_currentStyleNode].resolveStyle();
      this[_updateCanDrawOnCanvas](style);
      this[_spans][$add](new _engine.ParagraphSpan.new({style: style, start: start, end: end}));
    }
    [_updateCanDrawOnCanvas](style) {
      if (style == null) dart.nullFailed(I[363], 689, 47, "style");
      if (!dart.test(this[_canDrawOnCanvas])) {
        return;
      }
      let letterSpacing = style.letterSpacing;
      if (letterSpacing != null && letterSpacing !== 0.0) {
        this[_canDrawOnCanvas] = false;
        return;
      }
      let decoration = style.decoration;
      if (decoration != null && !dart.equals(decoration, ui.TextDecoration.none)) {
        this[_canDrawOnCanvas] = false;
        return;
      }
      let fontFeatures = style.fontFeatures;
      if (fontFeatures != null && dart.test(fontFeatures[$isNotEmpty])) {
        this[_canDrawOnCanvas] = false;
        return;
      }
      let fontVariations = style.fontVariations;
      if (fontVariations != null && dart.test(fontVariations[$isNotEmpty])) {
        this[_canDrawOnCanvas] = false;
        return;
      }
    }
    build() {
      if (dart.test(this[_spans][$isEmpty])) {
        this[_spans][$add](new _engine.ParagraphSpan.new({style: this[_rootStyleNode].resolveStyle(), start: 0, end: 0}));
      }
      return new _engine.CanvasParagraph.new(this[_spans], {paragraphStyle: this[_paragraphStyle$], plainText: dart.toString(this[_plainTextBuffer]), canDrawOnCanvas: this[_canDrawOnCanvas]});
    }
  };
  (_engine.CanvasParagraphBuilder.new = function(style) {
    if (style == null) dart.nullFailed(I[363], 605, 47, "style");
    this[_plainTextBuffer] = new core.StringBuffer.new();
    this[_spans] = G$.JSArrayOfParagraphSpan().of([]);
    this[_styleStack] = G$.JSArrayOfStyleNode().of([]);
    this[_placeholderCount] = 0;
    this[_placeholderScales] = G$.JSArrayOfdouble().of([]);
    this[_canDrawOnCanvas] = true;
    this[_paragraphStyle$] = style;
    this[_rootStyleNode] = new _engine.RootStyleNode.new(style);
    ;
  }).prototype = _engine.CanvasParagraphBuilder.prototype;
  dart.addRtiResources(_engine.CanvasParagraphBuilder, ["_engine|CanvasParagraphBuilder", "ui|ParagraphBuilder"]);
  dart.setMethodSignature(_engine.CanvasParagraphBuilder, () => dart.global.Object.setPrototypeOf({
    addPlaceholder: T$10.doubleAnddoubleAndPlaceholderAlignment__Tovoid(),
    pushStyle: T$10.TextStyleTovoid(),
    pop: T$.VoidTovoid(),
    addText: T$.StringTovoid(),
    [_updateCanDrawOnCanvas]: T$12.EngineTextStyleTovoid(),
    build: T$12.VoidToCanvasParagraph()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CanvasParagraphBuilder))));
  dart.setGetterSignature(_engine.CanvasParagraphBuilder, () => dart.global.Object.setPrototypeOf({
    [_currentStyleNode]: T$12.StyleNode(),
    placeholderCount: T$.int(),
    placeholderScales: T$9.ListOfdouble()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CanvasParagraphBuilder))));
  dart.setLibraryUri(_engine.CanvasParagraphBuilder, I[220]);
  dart.setFieldSignature(_engine.CanvasParagraphBuilder, () => dart.global.Object.setPrototypeOf({
    [_plainTextBuffer]: {type: T$2.StringBuffer(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_paragraphStyle$]: {type: T$11.EngineParagraphStyle(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_spans]: {type: T$12.ListOfParagraphSpan(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_styleStack]: {type: T$12.ListOfStyleNode(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_rootStyleNode]: {type: T$12.RootStyleNode(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_placeholderCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_placeholderScales]: {type: T$9.ListOfdouble(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_canDrawOnCanvas]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CanvasParagraphBuilder))));
  var _loadFontAsset = dart.privateName(_engine, "_loadFontAsset");
  var _loadFontFaceBytes = dart.privateName(_engine, "_loadFontFaceBytes");
  var _loadFontFace = dart.privateName(_engine, "_loadFontFace");
  _engine.HtmlFontCollection = class HtmlFontCollection extends core.Object {
    loadAssetFonts(manifest) {
      if (manifest == null) dart.nullFailed(I[365], 18, 56, "manifest");
      return async.async(T$9.AssetFontsResult(), (function* loadAssetFonts() {
        let pendingFonts = G$.JSArrayOfFutureOfRecOfStringAndFontLoadErrorN().of([]);
        for (let family of manifest.families) {
          for (let fontAsset of family.fontAssets) {
            pendingFonts[$add](dart.fn(() => async.async(T$12.RecOfStringAndFontLoadErrorN(), (function*() {
              return dart.recordLiteral("2;", 2, void 0, [fontAsset.asset, (yield this[_loadFontAsset](family.name, fontAsset.asset, fontAsset.descriptors))]);
            }).bind(this)), T$12.VoidToFutureOfRecOfStringAndFontLoadErrorN())());
          }
        }
        let loadedFonts = G.JSArrayOfString().of([]);
        let fontFailures = new (G$.IdentityMapOfString$FontLoadError()).new();
        for (let t$36632 of (yield async.Future.wait(T$12.RecOfStringAndFontLoadErrorN(), pendingFonts))) {
          let asset = null;
          let error = null;
          {
            let t$36$350$350 = t$36632;
            let t$36$350$351 = null;
            let t$36$350$351$35isSet = false;
            let t$36$350$352 = null;
            let t$36$350$352$35isSet = false;
            if (!(typeof (t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1)) == 'string' && (asset = t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1), true) && T$9.FontLoadErrorN()[_is](t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2)) && (error = t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2), true))) dart.throw(new core.StateError.new("Pattern matching error"));
          }
          if (error == null) {
            loadedFonts[$add](asset);
          } else {
            fontFailures[$_set](asset, error);
          }
        }
        return new _engine.AssetFontsResult.new(loadedFonts, fontFailures);
      }).bind(this));
    }
    loadFontFromList(list, opts) {
      if (list == null) dart.nullFailed(I[365], 44, 43, "list");
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      return async.async(T$.bool(), (function* loadFontFromList() {
        if (fontFamily == null) {
          _engine.printWarning("Font family must be provided to HtmlFontCollection.");
          return false;
        }
        return this[_loadFontFaceBytes](fontFamily, list);
      }).bind(this));
    }
    get fontFallbackManager() {
      return null;
    }
    clear() {
      dart.nullCheck(js_util.getProperty(T$12.DomFontFaceSetN(), dart.jsInteropNullCheck(dart.global.document), "fonts")).clear();
    }
    [_loadFontAsset](family, asset, descriptors) {
      if (family == null) dart.nullFailed(I[365], 103, 12, "family");
      if (asset == null) dart.nullFailed(I[365], 104, 12, "asset");
      if (descriptors == null) dart.nullFailed(I[365], 105, 25, "descriptors");
      return async.async(T$9.FontLoadErrorN(), (function* _loadFontAsset() {
        let fontFaces = G$.JSArrayOfDomFontFace().of([]);
        let errors = G$.JSArrayOfFontLoadError().of([]);
        try {
          if (dart.test(_engine.HtmlFontCollection.startWithDigit.hasMatch(family)) || _engine.HtmlFontCollection.notPunctuation.stringMatch(family) != family) {
            fontFaces[$add](yield this[_loadFontFace]("'" + dart.str(family) + "'", asset, descriptors));
          }
        } catch (t$36$35e) {
          let error = dart.getThrown(t$36$35e);
          if (T$9.FontLoadError()[_is](error)) {
            errors[$add](error);
          } else
            throw t$36$35e;
        }
        try {
          fontFaces[$add](yield this[_loadFontFace](family, asset, descriptors));
        } catch (t$36$35e$) {
          let error = dart.getThrown(t$36$35e$);
          if (T$9.FontLoadError()[_is](error)) {
            errors[$add](error);
          } else
            throw t$36$35e$;
        }
        if (dart.test(fontFaces[$isEmpty])) {
          return errors[$first];
        }
        try {
          for (let font of fontFaces) {
            T$12.DomFontFaceSetN()[_as](dart.nullCheck(js_util.getProperty(T$12.DomFontFaceSetN(), dart.jsInteropNullCheck(dart.global.document), "fonts")).add(font));
          }
        } catch (t$36$35e$0) {
          let e = dart.getThrown(t$36$35e$0);
          if (T$.Object()[_is](e)) {
            return new _engine.FontInvalidDataError.new(asset);
          } else
            throw t$36$35e$0;
        }
        return null;
      }).bind(this));
    }
    [_loadFontFace](family, asset, descriptors) {
      if (family == null) dart.nullFailed(I[365], 144, 12, "family");
      if (asset == null) dart.nullFailed(I[365], 145, 12, "asset");
      if (descriptors == null) dart.nullFailed(I[365], 146, 25, "descriptors");
      return async.async(T$12.DomFontFace(), function* _loadFontFace() {
        try {
          let fontFace = _engine.createDomFontFace(family, "url(" + dart.str(ui_web.assetManager.getAssetUrl(asset)) + ")", descriptors);
          return yield _engine['DomFontFaceExtension|load'](fontFace);
        } catch (t$36$35e) {
          let e = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](e)) {
            _engine.printWarning("Error while loading font family \"" + dart.str(family) + "\":\n" + dart.str(e));
            dart.throw(new _engine.FontDownloadError.new(asset, e));
          } else
            throw t$36$35e;
        }
      });
    }
    [_loadFontFaceBytes](family, list) {
      if (family == null) dart.nullFailed(I[365], 159, 42, "family");
      if (list == null) dart.nullFailed(I[365], 159, 60, "list");
      return async.async(T$.bool(), function* _loadFontFaceBytes() {
        try {
          let fontFace = _engine.createDomFontFace(family, list);
          if (_engine['DomFontFaceExtension|get#status'](fontFace) === "error") {
            return false;
          }
          T$12.DomFontFaceSetN()[_as](dart.nullCheck(js_util.getProperty(T$12.DomFontFaceSetN(), dart.jsInteropNullCheck(dart.global.document), "fonts")).add(fontFace));
          _engine.Spanometer.clearRulersCache();
        } catch (t$36$35e) {
          let exception = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](exception)) {
            return false;
          } else
            throw t$36$35e;
        }
        return true;
      });
    }
    debugResetFallbackFonts() {
    }
    static ['_#new#tearOff']() {
      return new _engine.HtmlFontCollection.new();
    }
  };
  (_engine.HtmlFontCollection.new = function() {
    ;
  }).prototype = _engine.HtmlFontCollection.prototype;
  dart.addRtiResources(_engine.HtmlFontCollection, ["_engine|HtmlFontCollection", "_engine|FlutterFontCollection"]);
  dart.setMethodSignature(_engine.HtmlFontCollection, () => dart.global.Object.setPrototypeOf({
    loadAssetFonts: T$9.FontManifestToFutureOfAssetFontsResult(),
    loadFontFromList: T$9.Uint8List__ToFutureOfbool(),
    clear: T$.VoidTovoid(),
    [_loadFontAsset]: T$12.StringAndStringAndMapOfString$StringToFutureOfFontLoadErrorN(),
    [_loadFontFace]: T$12.StringAndStringAndMapOfString$StringToFutureOfDomFontFace(),
    [_loadFontFaceBytes]: T$12.StringAndUint8ListToFutureOfbool(),
    debugResetFallbackFonts: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HtmlFontCollection))));
  dart.setGetterSignature(_engine.HtmlFontCollection, () => dart.global.Object.setPrototypeOf({fontFallbackManager: T$.Null()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.HtmlFontCollection))));
  dart.setLibraryUri(_engine.HtmlFontCollection, I[220]);
  dart.setStaticFieldSignature(_engine.HtmlFontCollection, () => ['notPunctuation', 'startWithDigit']);
  dart.defineLazy(_engine.HtmlFontCollection, {
    /*_engine.HtmlFontCollection.notPunctuation*/get notPunctuation() {
      return core.RegExp.new("[a-z0-9\\s]+", {caseSensitive: false});
    },
    /*_engine.HtmlFontCollection.startWithDigit*/get startWithDigit() {
      return core.RegExp.new("\\b\\d");
    }
  }, false);
  var text$ = dart.privateName(_engine, "TextFragmenter.text");
  _engine.TextFragmenter = class TextFragmenter extends core.Object {
    get text() {
      return this[text$];
    }
    set text(value) {
      super.text = value;
    }
  };
  (_engine.TextFragmenter.new = function(text) {
    if (text == null) dart.nullFailed(I[366], 15, 29, "text");
    this[text$] = text;
    ;
  }).prototype = _engine.TextFragmenter.prototype;
  dart.addRtiResources(_engine.TextFragmenter, ["_engine|TextFragmenter"]);
  dart.setLibraryUri(_engine.TextFragmenter, I[220]);
  dart.setFieldSignature(_engine.TextFragmenter, () => dart.global.Object.setPrototypeOf({text: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextFragmenter))));
  var start$4 = dart.privateName(_engine, "TextFragment.start");
  var end$3 = dart.privateName(_engine, "TextFragment.end");
  _engine.TextFragment = class TextFragment extends core.Object {
    get start() {
      return this[start$4];
    }
    set start(value) {
      super.start = value;
    }
    get end() {
      return this[end$3];
    }
    set end(value) {
      super.end = value;
    }
    overlapsWith(start, end) {
      if (start == null) dart.nullFailed(I[366], 32, 25, "start");
      if (end == null) dart.nullFailed(I[366], 32, 36, "end");
      return dart.notNull(start) < dart.notNull(this.end) && dart.notNull(this.start) < dart.notNull(end);
    }
  };
  (_engine.TextFragment.new = function(start, end) {
    if (start == null) dart.nullFailed(I[366], 26, 27, "start");
    if (end == null) dart.nullFailed(I[366], 26, 39, "end");
    this[start$4] = start;
    this[end$3] = end;
    ;
  }).prototype = _engine.TextFragment.prototype;
  dart.addRtiResources(_engine.TextFragment, ["_engine|TextFragment"]);
  dart.setMethodSignature(_engine.TextFragment, () => dart.global.Object.setPrototypeOf({overlapsWith: T$.intAndintTobool()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextFragment))));
  dart.setLibraryUri(_engine.TextFragment, I[220]);
  dart.setFieldSignature(_engine.TextFragment, () => dart.global.Object.setPrototypeOf({
    start: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    end: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextFragment))));
  var paragraphSpans$ = dart.privateName(_engine, "LayoutFragmenter.paragraphSpans");
  _engine.LayoutFragmenter = class LayoutFragmenter extends _engine.TextFragmenter {
    get paragraphSpans() {
      return this[paragraphSpans$];
    }
    set paragraphSpans(value) {
      super.paragraphSpans = value;
    }
    static ['_#new#tearOff'](text, paragraphSpans) {
      if (text == null) dart.nullFailed(I[367], 14, 32, "text");
      if (paragraphSpans == null) dart.nullFailed(I[367], 14, 43, "paragraphSpans");
      return new _engine.LayoutFragmenter.new(text, paragraphSpans);
    }
    fragment() {
      let t$36642, t$36642$, t$36642$0;
      let fragments = G$.JSArrayOfLayoutFragment().of([]);
      let fragmentStart = 0;
      let lineBreakFragments = (t$36642 = _engine.LineBreakFragmenter.new(this.text).fragment()[$iterator], (() => {
        t$36642.moveNext();
        return t$36642;
      })());
      let bidiFragments = (t$36642$ = new _engine.BidiFragmenter.new(this.text).fragment()[$iterator], (() => {
        t$36642$.moveNext();
        return t$36642$;
      })());
      let spans = (t$36642$0 = this.paragraphSpans[$iterator], (() => {
        t$36642$0.moveNext();
        return t$36642$0;
      })());
      let currentLineBreakFragment = lineBreakFragments.current;
      let currentBidiFragment = bidiFragments.current;
      let currentSpan = spans.current;
      while (true) {
        let fragmentEnd = math.min(T$.int(), currentLineBreakFragment.end, math.min(T$.int(), currentBidiFragment.end, currentSpan.end));
        let distanceFromLineBreak = dart.notNull(currentLineBreakFragment.end) - fragmentEnd;
        let lineBreakType = distanceFromLineBreak === 0 ? currentLineBreakFragment.type : _engine.LineBreakType.prohibited;
        let trailingNewlines = dart.notNull(currentLineBreakFragment.trailingNewlines) - distanceFromLineBreak;
        let trailingSpaces = dart.notNull(currentLineBreakFragment.trailingSpaces) - distanceFromLineBreak;
        let fragmentLength = fragmentEnd - fragmentStart;
        fragments[$add](new _engine.LayoutFragment.new(fragmentStart, fragmentEnd, lineBreakType, currentBidiFragment.textDirection, currentBidiFragment.fragmentFlow, currentSpan, {trailingNewlines: _engine.clampInt(trailingNewlines, 0, fragmentLength), trailingSpaces: _engine.clampInt(trailingSpaces, 0, fragmentLength)}));
        fragmentStart = fragmentEnd;
        let moved = false;
        if (currentLineBreakFragment.end === fragmentEnd) {
          if (dart.test(lineBreakFragments.moveNext())) {
            moved = true;
            currentLineBreakFragment = lineBreakFragments.current;
          }
        }
        if (currentBidiFragment.end === fragmentEnd) {
          if (dart.test(bidiFragments.moveNext())) {
            moved = true;
            currentBidiFragment = bidiFragments.current;
          }
        }
        if (currentSpan.end === fragmentEnd) {
          if (dart.test(spans.moveNext())) {
            moved = true;
            currentSpan = spans.current;
          }
        }
        if (!moved) {
          break;
        }
      }
      return fragments;
    }
  };
  (_engine.LayoutFragmenter.new = function(text, paragraphSpans) {
    if (text == null) dart.nullFailed(I[367], 14, 32, "text");
    if (paragraphSpans == null) dart.nullFailed(I[367], 14, 43, "paragraphSpans");
    this[paragraphSpans$] = paragraphSpans;
    dart.global.Object.getPrototypeOf(_engine.LayoutFragmenter).new.call(this, text);
    ;
  }).prototype = _engine.LayoutFragmenter.prototype;
  dart.addRtiResources(_engine.LayoutFragmenter, ["_engine|LayoutFragmenter"]);
  dart.setMethodSignature(_engine.LayoutFragmenter, () => dart.global.Object.setPrototypeOf({fragment: T$12.VoidToListOfLayoutFragment()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LayoutFragmenter))));
  dart.setLibraryUri(_engine.LayoutFragmenter, I[220]);
  dart.setFieldSignature(_engine.LayoutFragmenter, () => dart.global.Object.setPrototypeOf({paragraphSpans: {type: T$12.ListOfParagraphSpan(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LayoutFragmenter))));
  var type$8 = dart.privateName(_engine, "_CombinedFragment.type");
  var fragmentFlow$ = dart.privateName(_engine, "_CombinedFragment.fragmentFlow");
  var span$ = dart.privateName(_engine, "_CombinedFragment.span");
  var trailingNewlines$ = dart.privateName(_engine, "_CombinedFragment.trailingNewlines");
  var trailingSpaces$ = dart.privateName(_engine, "_CombinedFragment.trailingSpaces");
  _engine._CombinedFragment = class _CombinedFragment extends _engine.TextFragment {
    get type() {
      return this[type$8];
    }
    set type(value) {
      super.type = value;
    }
    get fragmentFlow() {
      return this[fragmentFlow$];
    }
    set fragmentFlow(value) {
      super.fragmentFlow = value;
    }
    get span() {
      return this[span$];
    }
    set span(value) {
      super.span = value;
    }
    get trailingNewlines() {
      return this[trailingNewlines$];
    }
    set trailingNewlines(value) {
      super.trailingNewlines = value;
    }
    get trailingSpaces() {
      return this[trailingSpaces$];
    }
    set trailingSpaces(value) {
      super.trailingSpaces = value;
    }
    get textDirection() {
      return this[_textDirection$];
    }
    get hashCode() {
      return core.Object.hash(this.start, this.end, this.type, this.textDirection, this.fragmentFlow, this.span, this.trailingNewlines, this.trailingSpaces);
    }
    _equals(other) {
      if (other == null) return false;
      return T$12.LayoutFragment()[_is](other) && other.start == this.start && other.end == this.end && other.type == this.type && other.textDirection == this.textDirection && other.fragmentFlow == this.fragmentFlow && dart.equals(other.span, this.span) && other.trailingNewlines == this.trailingNewlines && other.trailingSpaces == this.trailingSpaces;
    }
  };
  (_engine._CombinedFragment.new = function(start, end, type, _textDirection, fragmentFlow, span, opts) {
    if (start == null) dart.nullFailed(I[367], 96, 11, "start");
    if (end == null) dart.nullFailed(I[367], 97, 11, "end");
    if (type == null) dart.nullFailed(I[367], 98, 10, "type");
    if (fragmentFlow == null) dart.nullFailed(I[367], 100, 10, "fragmentFlow");
    if (span == null) dart.nullFailed(I[367], 101, 10, "span");
    let trailingNewlines = opts && 'trailingNewlines' in opts ? opts.trailingNewlines : null;
    if (trailingNewlines == null) dart.nullFailed(I[367], 102, 19, "trailingNewlines");
    let trailingSpaces = opts && 'trailingSpaces' in opts ? opts.trailingSpaces : null;
    if (trailingSpaces == null) dart.nullFailed(I[367], 103, 19, "trailingSpaces");
    this[type$8] = type;
    this[_textDirection$] = _textDirection;
    this[fragmentFlow$] = fragmentFlow;
    this[span$] = span;
    this[trailingNewlines$] = trailingNewlines;
    this[trailingSpaces$] = trailingSpaces;
    if (!(dart.notNull(trailingNewlines) >= 0)) dart.assertFailed(null, I[367], 104, 16, "trailingNewlines >= 0");
    if (!(dart.notNull(trailingSpaces) >= dart.notNull(trailingNewlines))) dart.assertFailed(null, I[367], 105, 16, "trailingSpaces >= trailingNewlines");
    dart.global.Object.getPrototypeOf(_engine._CombinedFragment).new.call(this, start, end);
    ;
  }).prototype = _engine._CombinedFragment.prototype;
  dart.addRtiResources(_engine._CombinedFragment, ["_engine|_CombinedFragment"]);
  dart.setGetterSignature(_engine._CombinedFragment, () => dart.global.Object.setPrototypeOf({textDirection: T$10.TextDirectionN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._CombinedFragment))));
  dart.setLibraryUri(_engine._CombinedFragment, I[220]);
  dart.setFieldSignature(_engine._CombinedFragment, () => dart.global.Object.setPrototypeOf({
    type: {type: T$12.LineBreakType(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_textDirection$]: {type: T$10.TextDirectionN(), isConst: false, isFinal: false, libraryUri: I[198]},
    fragmentFlow: {type: T$12.FragmentFlow(), isConst: false, isFinal: true, libraryUri: I[220]},
    span: {type: T$12.ParagraphSpan(), isConst: false, isFinal: true, libraryUri: I[220]},
    trailingNewlines: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    trailingSpaces: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._CombinedFragment))));
  dart.defineExtensionMethods(_engine._CombinedFragment, ['_equals']);
  dart.defineExtensionAccessors(_engine._CombinedFragment, ['hashCode']);
  var _$35_FragmentMetrics$35_spanometer = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_spanometer");
  var _$35_FragmentMetrics$35_spanometer$35isSet = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_spanometer#isSet");
  var _$35_FragmentMetrics$35_ascent = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_ascent");
  var _$35_FragmentMetrics$35_ascent$35isSet = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_ascent#isSet");
  var _$35_FragmentMetrics$35_descent = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_descent");
  var _$35_FragmentMetrics$35_descent$35isSet = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_descent#isSet");
  var _$35_FragmentMetrics$35_widthExcludingTrailingSpaces = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_widthExcludingTrailingSpaces");
  var _$35_FragmentMetrics$35_widthExcludingTrailingSpaces$35isSet = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_widthExcludingTrailingSpaces#isSet");
  var _$35_FragmentMetrics$35_widthIncludingTrailingSpaces = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_widthIncludingTrailingSpaces");
  var _$35_FragmentMetrics$35_widthIncludingTrailingSpaces$35isSet = dart.privateName(_engine, "_FragmentMetrics._#_FragmentMetrics#_widthIncludingTrailingSpaces#isSet");
  var _extraWidthForJustification = dart.privateName(_engine, "_FragmentMetrics._extraWidthForJustification");
  var ___FragmentMetrics__spanometer = dart.privateName(_engine, "_#_FragmentMetrics#_spanometer");
  var ___FragmentMetrics__spanometer_isSet = dart.privateName(_engine, "_#_FragmentMetrics#_spanometer#isSet");
  var ___FragmentMetrics__ascent = dart.privateName(_engine, "_#_FragmentMetrics#_ascent");
  var ___FragmentMetrics__ascent_isSet = dart.privateName(_engine, "_#_FragmentMetrics#_ascent#isSet");
  var ___FragmentMetrics__descent = dart.privateName(_engine, "_#_FragmentMetrics#_descent");
  var ___FragmentMetrics__descent_isSet = dart.privateName(_engine, "_#_FragmentMetrics#_descent#isSet");
  var ___FragmentMetrics__widthExcludingTrailingSpaces = dart.privateName(_engine, "_#_FragmentMetrics#_widthExcludingTrailingSpaces");
  var ___FragmentMetrics__widthExcludingTrailingSpaces_isSet = dart.privateName(_engine, "_#_FragmentMetrics#_widthExcludingTrailingSpaces#isSet");
  var ___FragmentMetrics__widthIncludingTrailingSpaces = dart.privateName(_engine, "_#_FragmentMetrics#_widthIncludingTrailingSpaces");
  var ___FragmentMetrics__widthIncludingTrailingSpaces_isSet = dart.privateName(_engine, "_#_FragmentMetrics#_widthIncludingTrailingSpaces#isSet");
  var _extraWidthForJustification$ = dart.privateName(_engine, "_extraWidthForJustification");
  var _spanometer = dart.privateName(_engine, "_spanometer");
  var _ascent = dart.privateName(_engine, "_ascent");
  var _descent = dart.privateName(_engine, "_descent");
  var _widthExcludingTrailingSpaces = dart.privateName(_engine, "_widthExcludingTrailingSpaces");
  var _widthIncludingTrailingSpaces = dart.privateName(_engine, "_widthIncludingTrailingSpaces");
  _engine._FragmentMetrics = class _FragmentMetrics extends _engine._CombinedFragment {};
  _engine._FragmentMetrics[dart.mixinOn] = _CombinedFragment => class _FragmentMetrics extends _CombinedFragment {
    get [___FragmentMetrics__spanometer]() {
      return this[_$35_FragmentMetrics$35_spanometer];
    }
    set [___FragmentMetrics__spanometer](value) {
      this[_$35_FragmentMetrics$35_spanometer] = value;
    }
    get [___FragmentMetrics__spanometer_isSet]() {
      return this[_$35_FragmentMetrics$35_spanometer$35isSet];
    }
    set [___FragmentMetrics__spanometer_isSet](value) {
      if (value == null) dart.nullFailed(I[367], 226, 19, "_#_FragmentMetrics#_spanometer#isSet");
      this[_$35_FragmentMetrics$35_spanometer$35isSet] = value;
    }
    get [___FragmentMetrics__ascent]() {
      return this[_$35_FragmentMetrics$35_ascent];
    }
    set [___FragmentMetrics__ascent](value) {
      this[_$35_FragmentMetrics$35_ascent] = value;
    }
    get [___FragmentMetrics__ascent_isSet]() {
      return this[_$35_FragmentMetrics$35_ascent$35isSet];
    }
    set [___FragmentMetrics__ascent_isSet](value) {
      if (value == null) dart.nullFailed(I[367], 230, 15, "_#_FragmentMetrics#_ascent#isSet");
      this[_$35_FragmentMetrics$35_ascent$35isSet] = value;
    }
    get [___FragmentMetrics__descent]() {
      return this[_$35_FragmentMetrics$35_descent];
    }
    set [___FragmentMetrics__descent](value) {
      this[_$35_FragmentMetrics$35_descent] = value;
    }
    get [___FragmentMetrics__descent_isSet]() {
      return this[_$35_FragmentMetrics$35_descent$35isSet];
    }
    set [___FragmentMetrics__descent_isSet](value) {
      if (value == null) dart.nullFailed(I[367], 234, 15, "_#_FragmentMetrics#_descent#isSet");
      this[_$35_FragmentMetrics$35_descent$35isSet] = value;
    }
    get [___FragmentMetrics__widthExcludingTrailingSpaces]() {
      return this[_$35_FragmentMetrics$35_widthExcludingTrailingSpaces];
    }
    set [___FragmentMetrics__widthExcludingTrailingSpaces](value) {
      this[_$35_FragmentMetrics$35_widthExcludingTrailingSpaces] = value;
    }
    get [___FragmentMetrics__widthExcludingTrailingSpaces_isSet]() {
      return this[_$35_FragmentMetrics$35_widthExcludingTrailingSpaces$35isSet];
    }
    set [___FragmentMetrics__widthExcludingTrailingSpaces_isSet](value) {
      if (value == null) dart.nullFailed(I[367], 238, 15, "_#_FragmentMetrics#_widthExcludingTrailingSpaces#isSet");
      this[_$35_FragmentMetrics$35_widthExcludingTrailingSpaces$35isSet] = value;
    }
    get [___FragmentMetrics__widthIncludingTrailingSpaces]() {
      return this[_$35_FragmentMetrics$35_widthIncludingTrailingSpaces];
    }
    set [___FragmentMetrics__widthIncludingTrailingSpaces](value) {
      this[_$35_FragmentMetrics$35_widthIncludingTrailingSpaces] = value;
    }
    get [___FragmentMetrics__widthIncludingTrailingSpaces_isSet]() {
      return this[_$35_FragmentMetrics$35_widthIncludingTrailingSpaces$35isSet];
    }
    set [___FragmentMetrics__widthIncludingTrailingSpaces_isSet](value) {
      if (value == null) dart.nullFailed(I[367], 242, 15, "_#_FragmentMetrics#_widthIncludingTrailingSpaces#isSet");
      this[_$35_FragmentMetrics$35_widthIncludingTrailingSpaces$35isSet] = value;
    }
    get [_extraWidthForJustification$]() {
      return this[_extraWidthForJustification];
    }
    set [_extraWidthForJustification$](value) {
      if (value == null) dart.nullFailed(I[367], 244, 10, "_extraWidthForJustification");
      this[_extraWidthForJustification] = value;
    }
    get [_spanometer]() {
      let t$36642;
      return dart.test(this[___FragmentMetrics__spanometer_isSet]) ? (t$36642 = this[___FragmentMetrics__spanometer], t$36642) : dart.throw(new _internal.LateError.fieldNI("_spanometer"));
    }
    set [_spanometer](_spanometer$35param) {
      if (_spanometer$35param == null) dart.nullFailed(I[367], 226, 19, "_spanometer#param");
      this[___FragmentMetrics__spanometer_isSet] = true;
      this[___FragmentMetrics__spanometer] = _spanometer$35param;
    }
    get ascent() {
      return this[_ascent];
    }
    get [_ascent]() {
      let t$36642;
      return dart.test(this[___FragmentMetrics__ascent_isSet]) ? (t$36642 = this[___FragmentMetrics__ascent], t$36642) : dart.throw(new _internal.LateError.fieldNI("_ascent"));
    }
    set [_ascent](_ascent$35param) {
      if (_ascent$35param == null) dart.nullFailed(I[367], 230, 15, "_ascent#param");
      this[___FragmentMetrics__ascent_isSet] = true;
      this[___FragmentMetrics__ascent] = _ascent$35param;
    }
    get descent() {
      return this[_descent];
    }
    get [_descent]() {
      let t$36642;
      return dart.test(this[___FragmentMetrics__descent_isSet]) ? (t$36642 = this[___FragmentMetrics__descent], t$36642) : dart.throw(new _internal.LateError.fieldNI("_descent"));
    }
    set [_descent](_descent$35param) {
      if (_descent$35param == null) dart.nullFailed(I[367], 234, 15, "_descent#param");
      this[___FragmentMetrics__descent_isSet] = true;
      this[___FragmentMetrics__descent] = _descent$35param;
    }
    get widthExcludingTrailingSpaces() {
      return this[_widthExcludingTrailingSpaces];
    }
    get [_widthExcludingTrailingSpaces]() {
      let t$36642;
      return dart.test(this[___FragmentMetrics__widthExcludingTrailingSpaces_isSet]) ? (t$36642 = this[___FragmentMetrics__widthExcludingTrailingSpaces], t$36642) : dart.throw(new _internal.LateError.fieldNI("_widthExcludingTrailingSpaces"));
    }
    set [_widthExcludingTrailingSpaces](_widthExcludingTrailingSpaces$35param) {
      if (_widthExcludingTrailingSpaces$35param == null) dart.nullFailed(I[367], 238, 15, "_widthExcludingTrailingSpaces#param");
      this[___FragmentMetrics__widthExcludingTrailingSpaces_isSet] = true;
      this[___FragmentMetrics__widthExcludingTrailingSpaces] = _widthExcludingTrailingSpaces$35param;
    }
    get widthIncludingTrailingSpaces() {
      return dart.notNull(this[_widthIncludingTrailingSpaces]) + dart.notNull(this[_extraWidthForJustification$]);
    }
    get [_widthIncludingTrailingSpaces]() {
      let t$36642;
      return dart.test(this[___FragmentMetrics__widthIncludingTrailingSpaces_isSet]) ? (t$36642 = this[___FragmentMetrics__widthIncludingTrailingSpaces], t$36642) : dart.throw(new _internal.LateError.fieldNI("_widthIncludingTrailingSpaces"));
    }
    set [_widthIncludingTrailingSpaces](_widthIncludingTrailingSpaces$35param) {
      if (_widthIncludingTrailingSpaces$35param == null) dart.nullFailed(I[367], 242, 15, "_widthIncludingTrailingSpaces#param");
      this[___FragmentMetrics__widthIncludingTrailingSpaces_isSet] = true;
      this[___FragmentMetrics__widthIncludingTrailingSpaces] = _widthIncludingTrailingSpaces$35param;
    }
    get height() {
      return dart.notNull(this.ascent) + dart.notNull(this.descent);
    }
    get widthOfTrailingSpaces() {
      return dart.notNull(this.widthIncludingTrailingSpaces) - dart.notNull(this.widthExcludingTrailingSpaces);
    }
    setMetrics(spanometer, opts) {
      if (spanometer == null) dart.nullFailed(I[367], 252, 30, "spanometer");
      let ascent = opts && 'ascent' in opts ? opts.ascent : null;
      if (ascent == null) dart.nullFailed(I[367], 253, 21, "ascent");
      let descent = opts && 'descent' in opts ? opts.descent : null;
      if (descent == null) dart.nullFailed(I[367], 254, 21, "descent");
      let widthExcludingTrailingSpaces = opts && 'widthExcludingTrailingSpaces' in opts ? opts.widthExcludingTrailingSpaces : null;
      if (widthExcludingTrailingSpaces == null) dart.nullFailed(I[367], 255, 21, "widthExcludingTrailingSpaces");
      let widthIncludingTrailingSpaces = opts && 'widthIncludingTrailingSpaces' in opts ? opts.widthIncludingTrailingSpaces : null;
      if (widthIncludingTrailingSpaces == null) dart.nullFailed(I[367], 256, 21, "widthIncludingTrailingSpaces");
      this[_spanometer] = spanometer;
      this[_ascent] = ascent;
      this[_descent] = descent;
      this[_widthExcludingTrailingSpaces] = widthExcludingTrailingSpaces;
      this[_widthIncludingTrailingSpaces] = widthIncludingTrailingSpaces;
    }
  };
  (_engine._FragmentMetrics[dart.mixinNew] = function() {
    this[_$35_FragmentMetrics$35_spanometer] = null;
    this[_$35_FragmentMetrics$35_spanometer$35isSet] = false;
    this[_$35_FragmentMetrics$35_ascent] = null;
    this[_$35_FragmentMetrics$35_ascent$35isSet] = false;
    this[_$35_FragmentMetrics$35_descent] = null;
    this[_$35_FragmentMetrics$35_descent$35isSet] = false;
    this[_$35_FragmentMetrics$35_widthExcludingTrailingSpaces] = null;
    this[_$35_FragmentMetrics$35_widthExcludingTrailingSpaces$35isSet] = false;
    this[_$35_FragmentMetrics$35_widthIncludingTrailingSpaces] = null;
    this[_$35_FragmentMetrics$35_widthIncludingTrailingSpaces$35isSet] = false;
    this[_extraWidthForJustification] = 0.0;
  }).prototype = _engine._FragmentMetrics.prototype;
  dart.addRtiResources(_engine._FragmentMetrics, ["_engine|_FragmentMetrics"]);
  dart.setMethodSignature(_engine._FragmentMetrics, () => dart.global.Object.setPrototypeOf({setMetrics: T$12.Spanometer__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._FragmentMetrics))));
  dart.setGetterSignature(_engine._FragmentMetrics, () => dart.global.Object.setPrototypeOf({
    [_spanometer]: T$12.Spanometer(),
    ascent: T$.double(),
    [_ascent]: T$.double(),
    descent: T$.double(),
    [_descent]: T$.double(),
    widthExcludingTrailingSpaces: T$.double(),
    [_widthExcludingTrailingSpaces]: T$.double(),
    widthIncludingTrailingSpaces: T$.double(),
    [_widthIncludingTrailingSpaces]: T$.double(),
    height: T$.double(),
    widthOfTrailingSpaces: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._FragmentMetrics))));
  dart.setSetterSignature(_engine._FragmentMetrics, () => dart.global.Object.setPrototypeOf({
    [_spanometer]: T$12.Spanometer(),
    [_ascent]: T$.double(),
    [_descent]: T$.double(),
    [_widthExcludingTrailingSpaces]: T$.double(),
    [_widthIncludingTrailingSpaces]: T$.double()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine._FragmentMetrics))));
  dart.setLibraryUri(_engine._FragmentMetrics, I[220]);
  dart.setFieldSignature(_engine._FragmentMetrics, () => dart.global.Object.setPrototypeOf({
    [___FragmentMetrics__spanometer]: {type: T$12.SpanometerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___FragmentMetrics__spanometer_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentMetrics__ascent]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentMetrics__ascent_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentMetrics__descent]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentMetrics__descent_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentMetrics__widthExcludingTrailingSpaces]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentMetrics__widthExcludingTrailingSpaces_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentMetrics__widthIncludingTrailingSpaces]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentMetrics__widthIncludingTrailingSpaces_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_extraWidthForJustification$]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._FragmentMetrics))));
  var _$35_FragmentPosition$35_startOffset = dart.privateName(_engine, "_FragmentPosition._#_FragmentPosition#_startOffset");
  var _$35_FragmentPosition$35_startOffset$35isSet = dart.privateName(_engine, "_FragmentPosition._#_FragmentPosition#_startOffset#isSet");
  var _$35_FragmentPosition$35line = dart.privateName(_engine, "_FragmentPosition._#_FragmentPosition#line");
  var _$35_FragmentPosition$35line$35isSet = dart.privateName(_engine, "_FragmentPosition._#_FragmentPosition#line#isSet");
  var ___FragmentPosition__startOffset = dart.privateName(_engine, "_#_FragmentPosition#_startOffset");
  var ___FragmentPosition__startOffset_isSet = dart.privateName(_engine, "_#_FragmentPosition#_startOffset#isSet");
  var ___FragmentPosition_line = dart.privateName(_engine, "_#_FragmentPosition#line");
  var ___FragmentPosition_line_isSet = dart.privateName(_engine, "_#_FragmentPosition#line#isSet");
  var _startOffset = dart.privateName(_engine, "_startOffset");
  _engine._FragmentPosition = class _FragmentPosition extends core.Object {};
  _engine._FragmentPosition[dart.mixinOn] = __FragmentPosition$36_CombinedFragment$36_FragmentMetrics => class _FragmentPosition extends __FragmentPosition$36_CombinedFragment$36_FragmentMetrics {
    get [___FragmentPosition__startOffset]() {
      return this[_$35_FragmentPosition$35_startOffset];
    }
    set [___FragmentPosition__startOffset](value) {
      this[_$35_FragmentPosition$35_startOffset] = value;
    }
    get [___FragmentPosition__startOffset_isSet]() {
      return this[_$35_FragmentPosition$35_startOffset$35isSet];
    }
    set [___FragmentPosition__startOffset_isSet](value) {
      if (value == null) dart.nullFailed(I[367], 302, 15, "_#_FragmentPosition#_startOffset#isSet");
      this[_$35_FragmentPosition$35_startOffset$35isSet] = value;
    }
    get [___FragmentPosition_line]() {
      return this[_$35_FragmentPosition$35line];
    }
    set [___FragmentPosition_line](value) {
      this[_$35_FragmentPosition$35line] = value;
    }
    get [___FragmentPosition_line_isSet]() {
      return this[_$35_FragmentPosition$35line$35isSet];
    }
    set [___FragmentPosition_line_isSet](value) {
      if (value == null) dart.nullFailed(I[367], 305, 22, "_#_FragmentPosition#line#isSet");
      this[_$35_FragmentPosition$35line$35isSet] = value;
    }
    get startOffset() {
      return this[_startOffset];
    }
    get [_startOffset]() {
      let t$36642;
      return dart.test(this[___FragmentPosition__startOffset_isSet]) ? (t$36642 = this[___FragmentPosition__startOffset], t$36642) : dart.throw(new _internal.LateError.fieldNI("_startOffset"));
    }
    set [_startOffset](_startOffset$35param) {
      if (_startOffset$35param == null) dart.nullFailed(I[367], 302, 15, "_startOffset#param");
      this[___FragmentPosition__startOffset_isSet] = true;
      this[___FragmentPosition__startOffset] = _startOffset$35param;
    }
    get line() {
      let t$36642;
      return dart.test(this[___FragmentPosition_line_isSet]) ? (t$36642 = this[___FragmentPosition_line], t$36642) : dart.throw(new _internal.LateError.fieldNI("line"));
    }
    set line(line$35param) {
      if (line$35param == null) dart.nullFailed(I[367], 305, 22, "line#param");
      this[___FragmentPosition_line_isSet] = true;
      this[___FragmentPosition_line] = line$35param;
    }
    get endOffset() {
      return dart.notNull(this.startOffset) + dart.notNull(this.widthIncludingTrailingSpaces);
    }
    get left() {
      return this.line.textDirection == ui.TextDirection.ltr ? this.startOffset : dart.notNull(this.line.width) - dart.notNull(this.endOffset);
    }
    get right() {
      return this.line.textDirection == ui.TextDirection.ltr ? this.endOffset : dart.notNull(this.line.width) - dart.notNull(this.startOffset);
    }
    setPosition(opts) {
      let startOffset = opts && 'startOffset' in opts ? opts.startOffset : null;
      if (startOffset == null) dart.nullFailed(I[367], 323, 21, "startOffset");
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      if (textDirection == null) dart.nullFailed(I[367], 324, 31, "textDirection");
      this[_startOffset] = startOffset;
      this[_textDirection$] == null ? this[_textDirection$] = textDirection : null;
    }
    justifyTo(opts) {
      let paragraphWidth = opts && 'paragraphWidth' in opts ? opts.paragraphWidth : null;
      if (paragraphWidth == null) dart.nullFailed(I[367], 331, 35, "paragraphWidth");
      if (dart.notNull(this.end) > dart.notNull(this.line.endIndex) - dart.notNull(this.line.trailingSpaces)) {
        return;
      }
      if (this.trailingSpaces === 0) {
        return;
      }
      let justificationTotal = dart.notNull(paragraphWidth) - dart.notNull(this.line.width);
      let justificationPerSpace = justificationTotal / dart.notNull(this.line.nonTrailingSpaces);
      this[_extraWidthForJustification$] = justificationPerSpace * dart.notNull(this.trailingSpaces);
    }
  };
  (_engine._FragmentPosition[dart.mixinNew] = function() {
    this[_$35_FragmentPosition$35_startOffset] = null;
    this[_$35_FragmentPosition$35_startOffset$35isSet] = false;
    this[_$35_FragmentPosition$35line] = null;
    this[_$35_FragmentPosition$35line$35isSet] = false;
  }).prototype = _engine._FragmentPosition.prototype;
  dart.addRtiResources(_engine._FragmentPosition, ["_engine|_FragmentPosition"]);
  dart.setMethodSignature(_engine._FragmentPosition, () => dart.global.Object.setPrototypeOf({
    setPosition: T$12.__Tovoid$22(),
    justifyTo: T$12.__Tovoid$23()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._FragmentPosition))));
  dart.setGetterSignature(_engine._FragmentPosition, () => dart.global.Object.setPrototypeOf({
    startOffset: T$.double(),
    [_startOffset]: T$.double(),
    line: T$12.ParagraphLine(),
    endOffset: T$.double(),
    left: T$.double(),
    right: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._FragmentPosition))));
  dart.setSetterSignature(_engine._FragmentPosition, () => dart.global.Object.setPrototypeOf({
    [_startOffset]: T$.double(),
    line: T$12.ParagraphLine()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine._FragmentPosition))));
  dart.setLibraryUri(_engine._FragmentPosition, I[220]);
  dart.setFieldSignature(_engine._FragmentPosition, () => dart.global.Object.setPrototypeOf({
    [___FragmentPosition__startOffset]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentPosition__startOffset_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentPosition_line]: {type: T$12.ParagraphLineN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [___FragmentPosition_line_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._FragmentPosition))));
  var _$35_FragmentBox$35_textBoxIncludingTrailingSpaces = dart.privateName(_engine, "_FragmentBox._#_FragmentBox#_textBoxIncludingTrailingSpaces");
  var _$35_FragmentBox$35_textBoxIncludingTrailingSpaces$35isSet = dart.privateName(_engine, "_FragmentBox._#_FragmentBox#_textBoxIncludingTrailingSpaces#isSet");
  var _$35_FragmentBox$35graphemeStartIndexRange = dart.privateName(_engine, "_FragmentBox._#_FragmentBox#graphemeStartIndexRange");
  var _$35_FragmentBox$35graphemeStartIndexRange$35isSet = dart.privateName(_engine, "_FragmentBox._#_FragmentBox#graphemeStartIndexRange#isSet");
  var ___FragmentBox__textBoxIncludingTrailingSpaces = dart.privateName(_engine, "_#_FragmentBox#_textBoxIncludingTrailingSpaces");
  var ___FragmentBox__textBoxIncludingTrailingSpaces_isSet = dart.privateName(_engine, "_#_FragmentBox#_textBoxIncludingTrailingSpaces#isSet");
  var ___FragmentBox_graphemeStartIndexRange = dart.privateName(_engine, "_#_FragmentBox#graphemeStartIndexRange");
  var ___FragmentBox_graphemeStartIndexRange_isSet = dart.privateName(_engine, "_#_FragmentBox#graphemeStartIndexRange#isSet");
  var _textBoxIncludingTrailingSpaces = dart.privateName(_engine, "_textBoxIncludingTrailingSpaces");
  var _isPartOfTrailingSpacesInLine = dart.privateName(_engine, "_isPartOfTrailingSpacesInLine");
  var _intersect = dart.privateName(_engine, "_intersect");
  var _makeXDirectionAgnostic = dart.privateName(_engine, "_makeXDirectionAgnostic");
  var _getBreaksRange = dart.privateName(_engine, "_getBreaksRange");
  var _getClosestCharacterInRange = dart.privateName(_engine, "_getClosestCharacterInRange");
  _engine._FragmentBox = class _FragmentBox extends core.Object {};
  _engine._FragmentBox[dart.mixinOn] = __FragmentBox$36_CombinedFragment$36_FragmentMetrics$36_FragmentPosition => class _FragmentBox extends __FragmentBox$36_CombinedFragment$36_FragmentMetrics$36_FragmentPosition {
    get [___FragmentBox__textBoxIncludingTrailingSpaces]() {
      return this[_$35_FragmentBox$35_textBoxIncludingTrailingSpaces];
    }
    set [___FragmentBox__textBoxIncludingTrailingSpaces](value) {
      this[_$35_FragmentBox$35_textBoxIncludingTrailingSpaces] = value;
    }
    get [___FragmentBox__textBoxIncludingTrailingSpaces_isSet]() {
      return this[_$35_FragmentBox$35_textBoxIncludingTrailingSpaces$35isSet];
    }
    set [___FragmentBox__textBoxIncludingTrailingSpaces_isSet](value) {
      if (value == null) dart.nullFailed(I[367], 355, 25, "_#_FragmentBox#_textBoxIncludingTrailingSpaces#isSet");
      this[_$35_FragmentBox$35_textBoxIncludingTrailingSpaces$35isSet] = value;
    }
    get [___FragmentBox_graphemeStartIndexRange]() {
      return this[_$35_FragmentBox$35graphemeStartIndexRange];
    }
    set [___FragmentBox_graphemeStartIndexRange](value) {
      this[_$35_FragmentBox$35graphemeStartIndexRange] = value;
    }
    get [___FragmentBox_graphemeStartIndexRange_isSet]() {
      return this[_$35_FragmentBox$35graphemeStartIndexRange$35isSet];
    }
    set [___FragmentBox_graphemeStartIndexRange_isSet](value) {
      if (value == null) dart.nullFailed(I[367], 591, 26, "_#_FragmentBox#graphemeStartIndexRange#isSet");
      this[_$35_FragmentBox$35graphemeStartIndexRange$35isSet] = value;
    }
    get top() {
      return dart.notNull(this.line.baseline) - dart.notNull(this.ascent);
    }
    get bottom() {
      return dart.notNull(this.line.baseline) + dart.notNull(this.descent);
    }
    get [_textBoxIncludingTrailingSpaces]() {
      let t$36643;
      if (!dart.test(this[___FragmentBox__textBoxIncludingTrailingSpaces_isSet])) {
        let t$36642 = new ui.TextBox.fromLTRBD(dart.notNull(this.line.left) + dart.notNull(this.left), this.top, dart.notNull(this.line.left) + dart.notNull(this.right), this.bottom, dart.nullCheck(this.textDirection));
        if (dart.test(this[___FragmentBox__textBoxIncludingTrailingSpaces_isSet])) dart.throw(new _internal.LateError.fieldADI("_textBoxIncludingTrailingSpaces"));
        this[___FragmentBox__textBoxIncludingTrailingSpaces] = t$36642;
        this[___FragmentBox__textBoxIncludingTrailingSpaces_isSet] = true;
      }
      t$36643 = this[___FragmentBox__textBoxIncludingTrailingSpaces];
      return t$36643;
    }
    get [_isPartOfTrailingSpacesInLine]() {
      return dart.notNull(this.end) > dart.notNull(this.line.endIndex) - dart.notNull(this.line.trailingSpaces);
    }
    toPaintingTextBox() {
      if (dart.test(this[_isPartOfTrailingSpacesInLine])) {
        return dart.nullCheck(this.textDirection) === ui.TextDirection.ltr ? new ui.TextBox.fromLTRBD(dart.notNull(this.line.left) + dart.notNull(this.left), this.top, dart.notNull(this.line.left) + dart.notNull(this.right) - dart.notNull(this.widthOfTrailingSpaces), this.bottom, dart.nullCheck(this.textDirection)) : new ui.TextBox.fromLTRBD(dart.notNull(this.line.left) + dart.notNull(this.left) + dart.notNull(this.widthOfTrailingSpaces), this.top, dart.notNull(this.line.left) + dart.notNull(this.right), this.bottom, dart.nullCheck(this.textDirection));
      }
      return this[_textBoxIncludingTrailingSpaces];
    }
    toTextBox(opts) {
      let start = opts && 'start' in opts ? opts.start : null;
      let end = opts && 'end' in opts ? opts.end : null;
      start == null ? start = this.start : null;
      end == null ? end = this.end : null;
      if (dart.notNull(start) <= dart.notNull(this.start) && dart.notNull(end) >= dart.notNull(this.end) - dart.notNull(this.trailingNewlines)) {
        return this[_textBoxIncludingTrailingSpaces];
      }
      return this[_intersect](start, end);
    }
    [_intersect](start, end) {
      if (start == null) dart.nullFailed(I[367], 421, 29, "start");
      if (end == null) dart.nullFailed(I[367], 421, 40, "end");
      if (!(dart.notNull(start) > dart.notNull(this.start) || dart.notNull(end) < dart.notNull(this.end))) dart.assertFailed(null, I[367], 423, 12, "start > this.start || end < this.end");
      let before = null;
      if (dart.notNull(start) <= dart.notNull(this.start)) {
        before = 0.0;
      } else {
        this[_spanometer].currentSpan = this.span;
        before = this[_spanometer].measureRange(this.start, start);
      }
      let after = null;
      if (dart.notNull(end) >= dart.notNull(this.end) - dart.notNull(this.trailingNewlines)) {
        after = 0.0;
      } else {
        this[_spanometer].currentSpan = this.span;
        after = this[_spanometer].measureRange(end, dart.notNull(this.end) - dart.notNull(this.trailingNewlines));
      }
      let left = null;
      let right = null;
      if (dart.nullCheck(this.textDirection) === ui.TextDirection.ltr) {
        left = dart.notNull(this.left) + dart.notNull(before);
        right = dart.notNull(this.right) - dart.notNull(after);
      } else {
        left = dart.notNull(this.left) + dart.notNull(after);
        right = dart.notNull(this.right) - dart.notNull(before);
      }
      return new ui.TextBox.fromLTRBD(dart.notNull(this.line.left) + dart.notNull(left), this.top, dart.notNull(this.line.left) + dart.notNull(right), this.bottom, dart.nullCheck(this.textDirection));
    }
    getPositionForX(x) {
      if (x == null) dart.nullFailed(I[367], 491, 42, "x");
      x = this[_makeXDirectionAgnostic](x);
      let startIndex = this.start;
      let endIndex = dart.notNull(this.end) - dart.notNull(this.trailingNewlines);
      let length = endIndex - dart.notNull(startIndex);
      if (length === 0) {
        return new ui.TextPosition.new({offset: startIndex});
      }
      if (length === 1) {
        let distanceFromStart = x;
        let distanceFromEnd = dart.notNull(this.widthIncludingTrailingSpaces) - dart.notNull(x);
        return dart.notNull(distanceFromStart) < distanceFromEnd ? new ui.TextPosition.new({offset: startIndex}) : new ui.TextPosition.new({offset: endIndex, affinity: ui.TextAffinity.upstream});
      }
      this[_spanometer].currentSpan = this.span;
      let cutoff = this[_spanometer].forceBreak(startIndex, endIndex, {availableWidth: x, allowEmpty: true});
      if (cutoff === endIndex) {
        return new ui.TextPosition.new({offset: cutoff, affinity: ui.TextAffinity.upstream});
      }
      let lowWidth = this[_spanometer].measureRange(startIndex, cutoff);
      let highWidth = this[_spanometer].measureRange(startIndex, dart.notNull(cutoff) + 1);
      if (dart.notNull(x) - dart.notNull(lowWidth) < dart.notNull(highWidth) - dart.notNull(x)) {
        return new ui.TextPosition.new({offset: cutoff});
      } else {
        return new ui.TextPosition.new({offset: dart.notNull(cutoff) + 1, affinity: ui.TextAffinity.upstream});
      }
    }
    [_makeXDirectionAgnostic](x) {
      if (x == null) dart.nullFailed(I[367], 580, 41, "x");
      if (this.textDirection == ui.TextDirection.rtl) {
        return dart.notNull(this.widthIncludingTrailingSpaces) - dart.notNull(x);
      }
      return x;
    }
    get graphemeStartIndexRange() {
      if (!dart.test(this[___FragmentBox_graphemeStartIndexRange_isSet])) {
        let t$36643 = this[_getBreaksRange]();
        if (dart.test(this[___FragmentBox_graphemeStartIndexRange_isSet])) dart.throw(new _internal.LateError.fieldADI("graphemeStartIndexRange"));
        this[___FragmentBox_graphemeStartIndexRange] = t$36643;
        this[___FragmentBox_graphemeStartIndexRange_isSet] = true;
      }
      return this[___FragmentBox_graphemeStartIndexRange];
    }
    [_getBreaksRange]() {
      if (this.end == this.start) {
        return null;
      }
      let lineGraphemeBreaks = this.line.graphemeStarts;
      if (!(dart.notNull(this.end) > dart.notNull(this.start))) dart.assertFailed(null, I[367], 597, 12, "end > start");
      if (!dart.test(this.line.graphemeStarts[$isNotEmpty])) dart.assertFailed(null, I[367], 598, 12, "line.graphemeStarts.isNotEmpty");
      let startIndex = this.line.graphemeStartIndexBefore(this.start, 0, lineGraphemeBreaks[$length]);
      let endIndex = this.end === dart.notNull(this.start) + 1 ? dart.notNull(startIndex) + 1 : dart.notNull(this.line.graphemeStartIndexBefore(dart.notNull(this.end) - 1, startIndex, lineGraphemeBreaks[$length])) + 1;
      let firstGraphemeStart = lineGraphemeBreaks[$_get](startIndex);
      return dart.notNull(firstGraphemeStart) > dart.notNull(this.start) ? endIndex === dart.notNull(startIndex) + 1 ? null : dart.recordLiteral("2;", 2, void 0, [dart.notNull(startIndex) + 1, endIndex]) : dart.recordLiteral("2;", 2, void 0, [startIndex, endIndex]);
    }
    get hasLeadingBrokenGrapheme() {
      let t$36644;
      let graphemeStartIndexRangeStart = (t$36644 = this.graphemeStartIndexRange, t$36644 == null ? null : t$36644.$1);
      return graphemeStartIndexRangeStart == null || this.line.graphemeStarts[$_get](graphemeStartIndexRangeStart) != this.start;
    }
    [_getClosestCharacterInRange](x, startIndex, endIndex) {
      if (x == null) dart.nullFailed(I[367], 627, 51, "x");
      if (startIndex == null) dart.nullFailed(I[367], 627, 58, "startIndex");
      if (endIndex == null) dart.nullFailed(I[367], 627, 74, "endIndex");
      let graphemeStartIndices = this.line.graphemeStarts;
      let fullRange = new ui.TextRange.new({start: graphemeStartIndices[$_get](startIndex), end: graphemeStartIndices[$_get](endIndex)});
      let fullBox = this.toTextBox({start: fullRange.start, end: fullRange.end});
      if (dart.notNull(startIndex) + 1 === endIndex) {
        return new ui.GlyphInfo.new(fullBox.toRect(), fullRange, fullBox.direction);
      }
      if (!(dart.notNull(startIndex) + 1 < dart.notNull(endIndex))) dart.assertFailed(null, I[367], 634, 12, "startIndex + 1 < endIndex");
      let left = null;
      let right = null;
      {
        let t$36$350$350 = fullBox;
        let t$36$350$351 = null;
        let t$36$350$351$35isSet = false;
        let t$36$350$352 = null;
        let t$36$350$352$35isSet = false;
        if (!(typeof (t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.left)) == 'number' && (left = t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.left), true) && typeof (t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.right)) == 'number' && (right = t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.right), true))) dart.throw(new core.StateError.new("Pattern matching error"));
      }
      if (dart.notNull(left) < dart.notNull(x) && dart.notNull(x) < dart.notNull(right)) {
        let midIndex = ((dart.notNull(startIndex) + dart.notNull(endIndex)) / 2)[$truncate]();
        let firstHalf = this[_getClosestCharacterInRange](x, startIndex, midIndex);
        if (dart.notNull(firstHalf.graphemeClusterLayoutBounds.left) < dart.notNull(x) && dart.notNull(x) < dart.notNull(firstHalf.graphemeClusterLayoutBounds.right)) {
          return firstHalf;
        }
        let secondHalf = this[_getClosestCharacterInRange](x, midIndex, endIndex);
        if (dart.notNull(secondHalf.graphemeClusterLayoutBounds.left) < dart.notNull(x) && dart.notNull(x) < dart.notNull(secondHalf.graphemeClusterLayoutBounds.right)) {
          return secondHalf;
        }
        let distanceToFirst = (dart.notNull(x) - x[$clamp](firstHalf.graphemeClusterLayoutBounds.left, firstHalf.graphemeClusterLayoutBounds.right))[$abs]();
        let distanceToSecond = (dart.notNull(x) - x[$clamp](secondHalf.graphemeClusterLayoutBounds.left, secondHalf.graphemeClusterLayoutBounds.right))[$abs]();
        return distanceToFirst > distanceToSecond ? firstHalf : secondHalf;
      }
      let range = (() => {
        let t$36649 = null;
        let t$36$351$350 = dart.recordLiteral("2;", 2, void 0, [fullBox.direction, dart.notNull(x) <= dart.notNull(left)]);
        let t$36$351$353 = null;
        let t$36$351$353$35isSet = false;
        let t$36$351$352 = C[785] || CT.C785;
        let t$36$351$351 = null;
        let t$36$351$351$35isSet = false;
        let t$36$351$356 = null;
        let t$36$351$356$35isSet = false;
        let t$36$351$354 = null;
        let t$36$351$354$35isSet = false;
        let t$36$351$358 = null;
        let t$36$351$358$35isSet = false;
        let t$36$351$357 = C[784] || CT.C784;
        let t$36$351$3510 = null;
        let t$36$351$3510$35isSet = false;
        L8: {
          {
            if (dart.test(t$36$351$353$35isSet ? t$36$351$353 : (t$36$351$353$35isSet = true, t$36$351$353 = t$36$351$352 === (t$36$351$351$35isSet ? t$36$351$351 : (t$36$351$351$35isSet = true, t$36$351$351 = t$36$351$350.$1)))) && dart.test(t$36$351$356$35isSet ? t$36$351$356 : (t$36$351$356$35isSet = true, t$36$351$356 = true === (t$36$351$354$35isSet ? t$36$351$354 : (t$36$351$354$35isSet = true, t$36$351$354 = t$36$351$350.$2)))) || dart.test(t$36$351$358$35isSet ? t$36$351$358 : (t$36$351$358$35isSet = true, t$36$351$358 = t$36$351$357 === (t$36$351$351$35isSet ? t$36$351$351 : (t$36$351$351$35isSet = true, t$36$351$351 = t$36$351$350.$1)))) && dart.test(t$36$351$3510$35isSet ? t$36$351$3510 : (t$36$351$3510$35isSet = true, t$36$351$3510 = false === (t$36$351$354$35isSet ? t$36$351$354 : (t$36$351$354$35isSet = true, t$36$351$354 = t$36$351$350.$2))))) {
              t$36649 = new ui.TextRange.new({start: graphemeStartIndices[$_get](startIndex), end: graphemeStartIndices[$_get](dart.notNull(startIndex) + 1)});
              break L8;
            }
          }
          {
            if (dart.test(t$36$351$353$35isSet ? t$36$351$353 : (t$36$351$353$35isSet = true, t$36$351$353 = t$36$351$352 === (t$36$351$351$35isSet ? t$36$351$351 : (t$36$351$351$35isSet = true, t$36$351$351 = t$36$351$350.$1)))) && dart.test(t$36$351$3510$35isSet ? t$36$351$3510 : (t$36$351$3510$35isSet = true, t$36$351$3510 = false === (t$36$351$354$35isSet ? t$36$351$354 : (t$36$351$354$35isSet = true, t$36$351$354 = t$36$351$350.$2)))) || dart.test(t$36$351$358$35isSet ? t$36$351$358 : (t$36$351$358$35isSet = true, t$36$351$358 = t$36$351$357 === (t$36$351$351$35isSet ? t$36$351$351 : (t$36$351$351$35isSet = true, t$36$351$351 = t$36$351$350.$1)))) && dart.test(t$36$351$356$35isSet ? t$36$351$356 : (t$36$351$356$35isSet = true, t$36$351$356 = true === (t$36$351$354$35isSet ? t$36$351$354 : (t$36$351$354$35isSet = true, t$36$351$354 = t$36$351$350.$2))))) {
              t$36649 = new ui.TextRange.new({start: graphemeStartIndices[$_get](dart.notNull(endIndex) - 1), end: graphemeStartIndices[$_get](endIndex)});
              break L8;
            }
          }
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36649;
      })();
      if (!!dart.test(range.isCollapsed)) dart.assertFailed(null, I[367], 671, 12, "!range.isCollapsed");
      let box = this.toTextBox({start: range.start, end: range.end});
      return new ui.GlyphInfo.new(box.toRect(), range, box.direction);
    }
    getClosestCharacterBox(x) {
      if (x == null) dart.nullFailed(I[367], 678, 46, "x");
      if (!(dart.notNull(this.end) > dart.notNull(this.start))) dart.assertFailed(null, I[367], 679, 12, "end > start");
      if (!(this.graphemeStartIndexRange != null)) dart.assertFailed(null, I[367], 680, 12, "graphemeStartIndexRange != null");
      let rangeStart = null;
      let rangeEnd = null;
      {
        let t$36$350$350 = dart.nullCheck(this.graphemeStartIndexRange);
        let t$36$350$351 = null;
        let t$36$350$351$35isSet = false;
        let t$36$350$352 = null;
        let t$36$350$352$35isSet = false;
        if (!(T$.int()[_is](t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1)) && (rangeStart = t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350.$1), true) && T$.int()[_is](t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2)) && (rangeEnd = t$36$350$352$35isSet ? t$36$350$352 : (t$36$350$352$35isSet = true, t$36$350$352 = t$36$350$350.$2), true))) dart.throw(new core.StateError.new("Pattern matching error"));
      }
      return this[_getClosestCharacterInRange](x, rangeStart, rangeEnd);
    }
  };
  (_engine._FragmentBox[dart.mixinNew] = function() {
    this[_$35_FragmentBox$35_textBoxIncludingTrailingSpaces] = null;
    this[_$35_FragmentBox$35_textBoxIncludingTrailingSpaces$35isSet] = false;
    this[_$35_FragmentBox$35graphemeStartIndexRange] = null;
    this[_$35_FragmentBox$35graphemeStartIndexRange$35isSet] = false;
  }).prototype = _engine._FragmentBox.prototype;
  dart.addRtiResources(_engine._FragmentBox, ["_engine|_FragmentBox"]);
  dart.setMethodSignature(_engine._FragmentBox, () => dart.global.Object.setPrototypeOf({
    toPaintingTextBox: T$12.VoidToTextBox(),
    toTextBox: T$12.__ToTextBox(),
    [_intersect]: T$12.intAndintToTextBox(),
    getPositionForX: T$12.doubleToTextPosition(),
    [_makeXDirectionAgnostic]: T$8.doubleTodouble(),
    [_getBreaksRange]: T$12.VoidToRec$1(),
    [_getClosestCharacterInRange]: T$12.doubleAndintAndintToGlyphInfo(),
    getClosestCharacterBox: T$12.doubleToGlyphInfo()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._FragmentBox))));
  dart.setGetterSignature(_engine._FragmentBox, () => dart.global.Object.setPrototypeOf({
    top: T$.double(),
    bottom: T$.double(),
    [_textBoxIncludingTrailingSpaces]: T$9.TextBox(),
    [_isPartOfTrailingSpacesInLine]: T$.bool(),
    graphemeStartIndexRange: T$12.RecNOfintAndint(),
    hasLeadingBrokenGrapheme: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine._FragmentBox))));
  dart.setLibraryUri(_engine._FragmentBox, I[220]);
  dart.setFieldSignature(_engine._FragmentBox, () => dart.global.Object.setPrototypeOf({
    [___FragmentBox__textBoxIncludingTrailingSpaces]: {type: T$12.TextBoxN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [___FragmentBox__textBoxIncludingTrailingSpaces_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___FragmentBox_graphemeStartIndexRange]: {type: T$12.RecNOfintAndint(), isConst: false, isFinal: false},
    [___FragmentBox_graphemeStartIndexRange_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine._FragmentBox))));
  const _CombinedFragment__FragmentMetrics$36 = class _CombinedFragment__FragmentMetrics extends _engine._CombinedFragment {};
  (_CombinedFragment__FragmentMetrics$36.new = function(start, end, type, _textDirection, fragmentFlow, span, opts) {
    _engine._FragmentMetrics[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(_CombinedFragment__FragmentMetrics$36).new.call(this, start, end, type, _textDirection, fragmentFlow, span, opts);
  }).prototype = _CombinedFragment__FragmentMetrics$36.prototype;
  dart.applyMixin(_CombinedFragment__FragmentMetrics$36, _engine._FragmentMetrics);
  const _CombinedFragment__FragmentPosition$36 = class _CombinedFragment__FragmentPosition extends _CombinedFragment__FragmentMetrics$36 {};
  (_CombinedFragment__FragmentPosition$36.new = function(start, end, type, _textDirection, fragmentFlow, span, opts) {
    _engine._FragmentPosition[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(_CombinedFragment__FragmentPosition$36).new.call(this, start, end, type, _textDirection, fragmentFlow, span, opts);
  }).prototype = _CombinedFragment__FragmentPosition$36.prototype;
  dart.applyMixin(_CombinedFragment__FragmentPosition$36, _engine._FragmentPosition);
  const _CombinedFragment__FragmentBox$36 = class _CombinedFragment__FragmentBox extends _CombinedFragment__FragmentPosition$36 {};
  (_CombinedFragment__FragmentBox$36.new = function(start, end, type, _textDirection, fragmentFlow, span, opts) {
    _engine._FragmentBox[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(_CombinedFragment__FragmentBox$36).new.call(this, start, end, type, _textDirection, fragmentFlow, span, opts);
  }).prototype = _CombinedFragment__FragmentBox$36.prototype;
  dart.applyMixin(_CombinedFragment__FragmentBox$36, _engine._FragmentBox);
  _engine.LayoutFragment = class LayoutFragment extends _CombinedFragment__FragmentBox$36 {
    static ['_#new#tearOff'](start, end, type, textDirection, fragmentFlow, span, opts) {
      if (start == null) dart.nullFailed(I[367], 148, 11, "start");
      if (end == null) dart.nullFailed(I[367], 149, 11, "end");
      if (type == null) dart.nullFailed(I[367], 150, 11, "type");
      if (fragmentFlow == null) dart.nullFailed(I[367], 152, 11, "fragmentFlow");
      if (span == null) dart.nullFailed(I[367], 153, 11, "span");
      let trailingNewlines = opts && 'trailingNewlines' in opts ? opts.trailingNewlines : null;
      if (trailingNewlines == null) dart.nullFailed(I[367], 154, 20, "trailingNewlines");
      let trailingSpaces = opts && 'trailingSpaces' in opts ? opts.trailingSpaces : null;
      if (trailingSpaces == null) dart.nullFailed(I[367], 155, 20, "trailingSpaces");
      return new _engine.LayoutFragment.new(start, end, type, textDirection, fragmentFlow, span, {trailingNewlines: trailingNewlines, trailingSpaces: trailingSpaces});
    }
    get length() {
      return dart.notNull(this.end) - dart.notNull(this.start);
    }
    get isSpaceOnly() {
      return this.length == this.trailingSpaces;
    }
    get isPlaceholder() {
      return T$12.PlaceholderSpan()[_is](this.span);
    }
    get isBreak() {
      return this.type != _engine.LineBreakType.prohibited;
    }
    get isHardBreak() {
      return this.type == _engine.LineBreakType.mandatory || this.type == _engine.LineBreakType.endOfText;
    }
    get style() {
      return this.span.style;
    }
    getText(paragraph) {
      if (paragraph == null) dart.nullFailed(I[367], 167, 34, "paragraph");
      return paragraph.plainText[$substring](this.start, dart.notNull(this.end) - dart.notNull(this.trailingNewlines));
    }
    split(index) {
      if (index == null) dart.nullFailed(I[367], 175, 35, "index");
      if (!(dart.notNull(this.start) <= dart.notNull(index))) dart.assertFailed(null, I[367], 176, 12, "start <= index");
      if (!(dart.notNull(index) <= dart.notNull(this.end))) dart.assertFailed(null, I[367], 177, 12, "index <= end");
      if (this.start == index) {
        return G$.JSArrayOfLayoutFragmentN().of([null, this]);
      }
      if (this.end == index) {
        return G$.JSArrayOfLayoutFragmentN().of([this, null]);
      }
      let secondLength = dart.notNull(this.end) - dart.notNull(index);
      let secondTrailingNewlines = math.min(T$.int(), this.trailingNewlines, secondLength);
      let secondTrailingSpaces = math.min(T$.int(), this.trailingSpaces, secondLength);
      return G$.JSArrayOfLayoutFragment().of([new _engine.LayoutFragment.new(this.start, index, _engine.LineBreakType.prohibited, this.textDirection, this.fragmentFlow, this.span, {trailingNewlines: dart.notNull(this.trailingNewlines) - secondTrailingNewlines, trailingSpaces: dart.notNull(this.trailingSpaces) - secondTrailingSpaces}), new _engine.LayoutFragment.new(index, this.end, this.type, this.textDirection, this.fragmentFlow, this.span, {trailingNewlines: secondTrailingNewlines, trailingSpaces: secondTrailingSpaces})]);
    }
    toString() {
      return dart.strSafe(dart_rti.createRuntimeType(T$12.LayoutFragment())) + "(" + dart.str(this.start) + ", " + dart.str(this.end) + ", " + dart.str(this.type) + ", " + dart.str(this.textDirection) + ")";
    }
  };
  (_engine.LayoutFragment.new = function(start, end, type, textDirection, fragmentFlow, span, opts) {
    if (start == null) dart.nullFailed(I[367], 148, 11, "start");
    if (end == null) dart.nullFailed(I[367], 149, 11, "end");
    if (type == null) dart.nullFailed(I[367], 150, 11, "type");
    if (fragmentFlow == null) dart.nullFailed(I[367], 152, 11, "fragmentFlow");
    if (span == null) dart.nullFailed(I[367], 153, 11, "span");
    let trailingNewlines = opts && 'trailingNewlines' in opts ? opts.trailingNewlines : null;
    if (trailingNewlines == null) dart.nullFailed(I[367], 154, 20, "trailingNewlines");
    let trailingSpaces = opts && 'trailingSpaces' in opts ? opts.trailingSpaces : null;
    if (trailingSpaces == null) dart.nullFailed(I[367], 155, 20, "trailingSpaces");
    dart.global.Object.getPrototypeOf(_engine.LayoutFragment).new.call(this, start, end, type, textDirection, fragmentFlow, span, {trailingNewlines: trailingNewlines, trailingSpaces: trailingSpaces});
    ;
  }).prototype = _engine.LayoutFragment.prototype;
  dart.addRtiResources(_engine.LayoutFragment, ["_engine|LayoutFragment"]);
  dart.setMethodSignature(_engine.LayoutFragment, () => dart.global.Object.setPrototypeOf({
    getText: T$12.CanvasParagraphToString(),
    split: T$12.intToListOfLayoutFragmentN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LayoutFragment))));
  dart.setGetterSignature(_engine.LayoutFragment, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    isSpaceOnly: T$.bool(),
    isPlaceholder: T$.bool(),
    isBreak: T$.bool(),
    isHardBreak: T$.bool(),
    style: T$12.EngineTextStyle()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.LayoutFragment))));
  dart.setLibraryUri(_engine.LayoutFragment, I[220]);
  dart.defineExtensionMethods(_engine.LayoutFragment, ['toString']);
  _engine.EllipsisFragment = class EllipsisFragment extends _engine.LayoutFragment {
    static ['_#new#tearOff'](index, span) {
      if (index == null) dart.nullFailed(I[367], 691, 9, "index");
      if (span == null) dart.nullFailed(I[367], 692, 19, "span");
      return new _engine.EllipsisFragment.new(index, span);
    }
    get isSpaceOnly() {
      return false;
    }
    get isPlaceholder() {
      return false;
    }
    getText(paragraph) {
      if (paragraph == null) dart.nullFailed(I[367], 713, 34, "paragraph");
      return dart.nullCheck(paragraph.paragraphStyle.ellipsis);
    }
    split(index) {
      if (index == null) dart.nullFailed(I[367], 718, 34, "index");
      dart.throw(core.Exception.new("Cannot split an EllipsisFragment"));
    }
  };
  (_engine.EllipsisFragment.new = function(index, span) {
    if (index == null) dart.nullFailed(I[367], 691, 9, "index");
    if (span == null) dart.nullFailed(I[367], 692, 19, "span");
    dart.global.Object.getPrototypeOf(_engine.EllipsisFragment).new.call(this, index, index, _engine.LineBreakType.endOfText, null, _engine.FragmentFlow.sandwich, span, {trailingNewlines: 0, trailingSpaces: 0});
    ;
  }).prototype = _engine.EllipsisFragment.prototype;
  dart.addRtiResources(_engine.EllipsisFragment, ["_engine|EllipsisFragment"]);
  dart.setMethodSignature(_engine.EllipsisFragment, () => dart.global.Object.setPrototypeOf({split: T$12.intToListOfLayoutFragment()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EllipsisFragment))));
  dart.setLibraryUri(_engine.EllipsisFragment, I[220]);
  var paragraph$0 = dart.privateName(_engine, "TextLayoutService.paragraph");
  var width = dart.privateName(_engine, "TextLayoutService.width");
  var height = dart.privateName(_engine, "TextLayoutService.height");
  var longestLine = dart.privateName(_engine, "TextLayoutService.longestLine");
  var minIntrinsicWidth = dart.privateName(_engine, "TextLayoutService.minIntrinsicWidth");
  var maxIntrinsicWidth = dart.privateName(_engine, "TextLayoutService.maxIntrinsicWidth");
  var alphabeticBaseline = dart.privateName(_engine, "TextLayoutService.alphabeticBaseline");
  var ideographicBaseline = dart.privateName(_engine, "TextLayoutService.ideographicBaseline");
  var didExceedMaxLines = dart.privateName(_engine, "TextLayoutService.didExceedMaxLines");
  var lines = dart.privateName(_engine, "TextLayoutService.lines");
  var __TextLayoutService_spanometer = dart.privateName(_engine, "_#TextLayoutService#spanometer");
  var __TextLayoutService_spanometer_isSet = dart.privateName(_engine, "_#TextLayoutService#spanometer#isSet");
  var __TextLayoutService_layoutFragmenter = dart.privateName(_engine, "_#TextLayoutService#layoutFragmenter");
  var __TextLayoutService_layoutFragmenter_isSet = dart.privateName(_engine, "_#TextLayoutService#layoutFragmenter#isSet");
  var _positionLineFragments = dart.privateName(_engine, "_positionLineFragments");
  var _paragraphDirection = dart.privateName(_engine, "_paragraphDirection");
  var _positionFragmentRange = dart.privateName(_engine, "_positionFragmentRange");
  var _positionOneFragment = dart.privateName(_engine, "_positionOneFragment");
  var _findLineForY = dart.privateName(_engine, "_findLineForY");
  _engine.TextLayoutService = class TextLayoutService extends core.Object {
    get paragraph() {
      return this[paragraph$0];
    }
    set paragraph(value) {
      super.paragraph = value;
    }
    get width() {
      return this[width];
    }
    set width(value) {
      if (value == null) dart.nullFailed(I[368], 32, 10, "width");
      this[width] = value;
    }
    get height() {
      return this[height];
    }
    set height(value) {
      if (value == null) dart.nullFailed(I[368], 34, 10, "height");
      this[height] = value;
    }
    get longestLine() {
      return this[longestLine];
    }
    set longestLine(value) {
      this[longestLine] = value;
    }
    get minIntrinsicWidth() {
      return this[minIntrinsicWidth];
    }
    set minIntrinsicWidth(value) {
      if (value == null) dart.nullFailed(I[368], 38, 10, "minIntrinsicWidth");
      this[minIntrinsicWidth] = value;
    }
    get maxIntrinsicWidth() {
      return this[maxIntrinsicWidth];
    }
    set maxIntrinsicWidth(value) {
      if (value == null) dart.nullFailed(I[368], 40, 10, "maxIntrinsicWidth");
      this[maxIntrinsicWidth] = value;
    }
    get alphabeticBaseline() {
      return this[alphabeticBaseline];
    }
    set alphabeticBaseline(value) {
      if (value == null) dart.nullFailed(I[368], 42, 10, "alphabeticBaseline");
      this[alphabeticBaseline] = value;
    }
    get ideographicBaseline() {
      return this[ideographicBaseline];
    }
    set ideographicBaseline(value) {
      if (value == null) dart.nullFailed(I[368], 44, 10, "ideographicBaseline");
      this[ideographicBaseline] = value;
    }
    get didExceedMaxLines() {
      return this[didExceedMaxLines];
    }
    set didExceedMaxLines(value) {
      if (value == null) dart.nullFailed(I[368], 46, 8, "didExceedMaxLines");
      this[didExceedMaxLines] = value;
    }
    get lines() {
      return this[lines];
    }
    set lines(value) {
      super.lines = value;
    }
    static ['_#new#tearOff'](paragraph) {
      if (paragraph == null) dart.nullFailed(I[368], 24, 26, "paragraph");
      return new _engine.TextLayoutService.new(paragraph);
    }
    get paintBounds() {
      return this[_paintBounds];
    }
    get spanometer() {
      let t$36671;
      if (!dart.test(this[__TextLayoutService_spanometer_isSet])) {
        let t$36670 = new _engine.Spanometer.new(this.paragraph);
        if (dart.test(this[__TextLayoutService_spanometer_isSet])) dart.throw(new _internal.LateError.fieldADI("spanometer"));
        this[__TextLayoutService_spanometer] = t$36670;
        this[__TextLayoutService_spanometer_isSet] = true;
      }
      t$36671 = this[__TextLayoutService_spanometer];
      return t$36671;
    }
    get layoutFragmenter() {
      let t$36672;
      if (!dart.test(this[__TextLayoutService_layoutFragmenter_isSet])) {
        let t$36671 = new _engine.LayoutFragmenter.new(this.paragraph.plainText, this.paragraph.spans);
        if (dart.test(this[__TextLayoutService_layoutFragmenter_isSet])) dart.throw(new _internal.LateError.fieldADI("layoutFragmenter"));
        this[__TextLayoutService_layoutFragmenter] = t$36671;
        this[__TextLayoutService_layoutFragmenter_isSet] = true;
      }
      t$36672 = this[__TextLayoutService_layoutFragmenter];
      return t$36672;
    }
    performLayout(constraints) {
      let t$36672, t$36672$, t$36672$0;
      if (constraints == null) dart.nullFailed(I[368], 73, 46, "constraints");
      this.width = constraints.width;
      this.height = 0.0;
      this.longestLine = null;
      this.minIntrinsicWidth = 0.0;
      this.maxIntrinsicWidth = 0.0;
      this.didExceedMaxLines = false;
      this.lines[$clear]();
      let currentLine = _engine.LineBuilder.first(this.paragraph, this.spanometer, {maxWidth: constraints.width});
      let fragments = (t$36672 = this.layoutFragmenter.fragment(), (() => {
        t$36672[$forEach](dart.bind(this.spanometer, 'measureFragment'));
        return t$36672;
      })());
      L9:
        for (let i = 0; i < dart.notNull(fragments[$length]); i = i + 1) {
          let fragment = fragments[$_get](i);
          currentLine.addFragment(fragment);
          while (dart.test(currentLine.isOverflowing)) {
            if (dart.test(currentLine.canHaveEllipsis)) {
              currentLine.insertEllipsis();
              this.lines[$add](currentLine.build());
              this.didExceedMaxLines = true;
              break L9;
            }
            if (dart.test(currentLine.isBreakable)) {
              currentLine.revertToLastBreakOpportunity();
            } else {
              currentLine.forceBreakLastFragment();
            }
            i = i + dart.notNull(currentLine.appendZeroWidthFragments(fragments, {startFrom: i + 1}));
            this.lines[$add](currentLine.build());
            currentLine = currentLine.nextLine();
          }
          if (dart.test(currentLine.isHardBreak)) {
            this.lines[$add](currentLine.build());
            currentLine = currentLine.nextLine();
          }
        }
      let maxLines = this.paragraph.paragraphStyle.maxLines;
      if (maxLines != null && dart.notNull(this.lines[$length]) > dart.notNull(maxLines)) {
        this.didExceedMaxLines = true;
        this.lines[$removeRange](maxLines, this.lines[$length]);
      }
      let boundsLeft = 1 / 0;
      let boundsRight = -1 / 0;
      for (let line of this.lines) {
        this.height = dart.notNull(this.height) + dart.notNull(line.height);
        if (this.alphabeticBaseline === -1.0) {
          this.alphabeticBaseline = line.baseline;
          this.ideographicBaseline = dart.notNull(this.alphabeticBaseline) * 1.1662499904632568;
        }
        let longestLineWidth = (t$36672$0 = (t$36672$ = this.longestLine, t$36672$ == null ? null : t$36672$.width), t$36672$0 == null ? 0.0 : t$36672$0);
        if (dart.notNull(longestLineWidth) < dart.notNull(line.width)) {
          this.longestLine = line;
        }
        let left = line.left;
        if (dart.notNull(left) < dart.notNull(boundsLeft)) {
          boundsLeft = left;
        }
        let right = dart.notNull(left) + dart.notNull(line.width);
        if (right > boundsRight) {
          boundsRight = right;
        }
      }
      this[_paintBounds] = new ui.Rect.fromLTRB(boundsLeft, 0.0, boundsRight, this.height);
      if (dart.test(this.lines[$isNotEmpty])) {
        let shouldJustifyParagraph = this.width[$isFinite] && this.paragraph.paragraphStyle.textAlign == ui.TextAlign.justify;
        if (shouldJustifyParagraph) {
          for (let i = 0; i < dart.notNull(this.lines[$length]) - 1; i = i + 1) {
            for (let fragment of this.lines[$_get](i).fragments) {
              fragment.justifyTo({paragraphWidth: this.width});
            }
          }
        }
      }
      this.lines[$forEach](dart.bind(this, _positionLineFragments));
      let runningMinIntrinsicWidth = 0.0;
      let runningMaxIntrinsicWidth = 0.0;
      for (let fragment of fragments) {
        runningMinIntrinsicWidth = runningMinIntrinsicWidth + dart.notNull(fragment.widthExcludingTrailingSpaces);
        runningMaxIntrinsicWidth = runningMaxIntrinsicWidth + dart.notNull(fragment.widthIncludingTrailingSpaces);
        switch (fragment.type) {
          case C[996] || CT.C996:
            {
              break;
            }
          case C[997] || CT.C997:
            {
              this.minIntrinsicWidth = math.max(T$.double(), this.minIntrinsicWidth, runningMinIntrinsicWidth);
              runningMinIntrinsicWidth = 0.0;
              break;
            }
          case C[998] || CT.C998:
          case C[999] || CT.C999:
            {
              this.minIntrinsicWidth = math.max(T$.double(), this.minIntrinsicWidth, runningMinIntrinsicWidth);
              this.maxIntrinsicWidth = math.max(T$.double(), this.maxIntrinsicWidth, runningMaxIntrinsicWidth);
              runningMinIntrinsicWidth = 0.0;
              runningMaxIntrinsicWidth = 0.0;
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
        }
      }
    }
    get [_paragraphDirection]() {
      return this.paragraph.paragraphStyle.effectiveTextDirection;
    }
    [_positionLineFragments](line) {
      if (line == null) dart.nullFailed(I[368], 220, 45, "line");
      let previousDirection = this[_paragraphDirection];
      let startOffset = 0.0;
      let sandwichStart = null;
      let sequenceStart = 0;
      for (let i = 0; i <= dart.notNull(line.fragments[$length]); i = i + 1) {
        if (i < dart.notNull(line.fragments[$length])) {
          let fragment = line.fragments[$_get](i);
          if (fragment.fragmentFlow == _engine.FragmentFlow.previous) {
            sandwichStart = null;
            continue;
          }
          if (fragment.fragmentFlow == _engine.FragmentFlow.sandwich) {
            sandwichStart == null ? sandwichStart = i : null;
            continue;
          }
          if (!(fragment.fragmentFlow == _engine.FragmentFlow.ltr || fragment.fragmentFlow == _engine.FragmentFlow.rtl)) dart.assertFailed(null, I[368], 241, 16, "fragment.fragmentFlow == FragmentFlow.ltr ||\n            fragment.fragmentFlow == FragmentFlow.rtl");
          let currentDirection = fragment.fragmentFlow == _engine.FragmentFlow.ltr ? ui.TextDirection.ltr : ui.TextDirection.rtl;
          if (currentDirection == previousDirection) {
            sandwichStart = null;
            continue;
          }
        }
        if (sandwichStart == null) {
          startOffset = startOffset + dart.notNull(this[_positionFragmentRange]({line: line, start: sequenceStart, end: i, direction: previousDirection, startOffset: startOffset}));
        } else {
          startOffset = startOffset + dart.notNull(this[_positionFragmentRange]({line: line, start: sequenceStart, end: sandwichStart, direction: previousDirection, startOffset: startOffset}));
          startOffset = startOffset + dart.notNull(this[_positionFragmentRange]({line: line, start: sandwichStart, end: i, direction: this[_paragraphDirection], startOffset: startOffset}));
        }
        sequenceStart = i;
        sandwichStart = null;
        if (i < dart.notNull(line.fragments[$length])) {
          previousDirection = dart.nullCheck(line.fragments[$_get](i).textDirection);
        }
      }
    }
    [_positionFragmentRange](opts) {
      let line = opts && 'line' in opts ? opts.line : null;
      if (line == null) dart.nullFailed(I[368], 296, 28, "line");
      let start = opts && 'start' in opts ? opts.start : null;
      if (start == null) dart.nullFailed(I[368], 297, 18, "start");
      let end = opts && 'end' in opts ? opts.end : null;
      if (end == null) dart.nullFailed(I[368], 298, 18, "end");
      let direction = opts && 'direction' in opts ? opts.direction : null;
      if (direction == null) dart.nullFailed(I[368], 299, 31, "direction");
      let startOffset = opts && 'startOffset' in opts ? opts.startOffset : null;
      if (startOffset == null) dart.nullFailed(I[368], 300, 21, "startOffset");
      if (!(dart.notNull(start) <= dart.notNull(end))) dart.assertFailed(null, I[368], 302, 12, "start <= end");
      let cumulativeWidth = 0.0;
      if (direction == this[_paragraphDirection]) {
        for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
          cumulativeWidth = cumulativeWidth + dart.notNull(this[_positionOneFragment](line, i, dart.notNull(startOffset) + cumulativeWidth, direction));
        }
      } else {
        for (let i = dart.notNull(end) - 1; i >= dart.notNull(start); i = i - 1) {
          cumulativeWidth = cumulativeWidth + dart.notNull(this[_positionOneFragment](line, i, dart.notNull(startOffset) + cumulativeWidth, direction));
        }
      }
      return cumulativeWidth;
    }
    [_positionOneFragment](line, i, startOffset, direction) {
      if (line == null) dart.nullFailed(I[368], 326, 19, "line");
      if (i == null) dart.nullFailed(I[368], 327, 9, "i");
      if (startOffset == null) dart.nullFailed(I[368], 328, 12, "startOffset");
      if (direction == null) dart.nullFailed(I[368], 329, 22, "direction");
      let fragment = line.fragments[$_get](i);
      fragment.setPosition({startOffset: startOffset, textDirection: direction});
      return fragment.widthIncludingTrailingSpaces;
    }
    getBoxesForPlaceholders() {
      let boxes = G$.JSArrayOfTextBox().of([]);
      for (let line of this.lines) {
        for (let fragment of line.fragments) {
          if (dart.test(fragment.isPlaceholder)) {
            boxes[$add](fragment.toTextBox());
          }
        }
      }
      return boxes;
    }
    getBoxesForRange(start, end, boxHeightStyle, boxWidthStyle) {
      if (start == null) dart.nullFailed(I[368], 349, 9, "start");
      if (end == null) dart.nullFailed(I[368], 350, 9, "end");
      if (boxHeightStyle == null) dart.nullFailed(I[368], 351, 23, "boxHeightStyle");
      if (boxWidthStyle == null) dart.nullFailed(I[368], 352, 22, "boxWidthStyle");
      if (dart.notNull(start) >= dart.notNull(end) || dart.notNull(start) < 0 || dart.notNull(end) < 0) {
        return G$.JSArrayOfTextBox().of([]);
      }
      let length = this.paragraph.plainText.length;
      if (dart.notNull(start) > length || dart.notNull(end) > length) {
        return G$.JSArrayOfTextBox().of([]);
      }
      let boxes = G$.JSArrayOfTextBox().of([]);
      for (let line of this.lines) {
        if (dart.test(line.overlapsWith(start, end))) {
          for (let fragment of line.fragments) {
            if (!dart.test(fragment.isPlaceholder) && dart.test(fragment.overlapsWith(start, end))) {
              boxes[$add](fragment.toTextBox({start: start, end: end}));
            }
          }
        }
      }
      return boxes;
    }
    getPositionForOffset(offset) {
      if (offset == null) dart.nullFailed(I[368], 379, 50, "offset");
      let line = this[_findLineForY](offset.dy);
      if (line == null) {
        return C[1000] || CT.C1000;
      }
      if (dart.notNull(offset.dx) <= dart.notNull(line.left)) {
        return new ui.TextPosition.new({offset: line.startIndex});
      }
      if (dart.notNull(offset.dx) >= dart.notNull(line.left) + dart.notNull(line.widthWithTrailingSpaces)) {
        return new ui.TextPosition.new({offset: dart.notNull(line.endIndex) - dart.notNull(line.trailingNewlines), affinity: ui.TextAffinity.upstream});
      }
      let dx = dart.notNull(offset.dx) - dart.notNull(line.left);
      for (let fragment of line.fragments) {
        if (dart.notNull(fragment.left) <= dx && dx <= dart.notNull(fragment.right)) {
          return fragment.getPositionForX(dx - dart.notNull(fragment.left));
        }
      }
      return new ui.TextPosition.new({offset: line.startIndex});
    }
    getClosestGlyphInfo(offset) {
      let t$36674;
      if (offset == null) dart.nullFailed(I[368], 413, 47, "offset");
      let line = this[_findLineForY](offset.dy);
      if (line == null) {
        return null;
      }
      let fragment = line.closestFragmentAtOffset(dart.notNull(offset.dx) - dart.notNull(line.left));
      if (fragment == null) {
        return null;
      }
      let dx = offset.dx;
      let closestGraphemeStartInFragment = !dart.test(fragment.hasLeadingBrokenGrapheme) || dart.notNull(dx) <= dart.notNull(fragment.line.left) || dart.notNull(fragment.line.left) + dart.notNull(fragment.line.width) <= dart.notNull(dx) || dart.test((() => {
        let t$36672 = null;
        switch (dart.nullCheck(fragment.textDirection)) {
          case C[785] || CT.C785:
            {
              t$36672 = dart.notNull(dx) >= dart.notNull(line.left) + (dart.notNull(fragment.left) + dart.notNull(fragment.right)) / 2;
              break;
            }
          case C[784] || CT.C784:
            {
              t$36672 = dart.notNull(dx) <= dart.notNull(line.left) + (dart.notNull(fragment.left) + dart.notNull(fragment.right)) / 2;
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36672;
      })());
      let candidate1 = fragment.getClosestCharacterBox(dx);
      if (closestGraphemeStartInFragment) {
        return candidate1;
      }
      let searchLeft = (() => {
        let t$36673 = null;
        switch (dart.nullCheck(fragment.textDirection)) {
          case C[785] || CT.C785:
            {
              t$36673 = true;
              break;
            }
          case C[784] || CT.C784:
            {
              t$36673 = false;
              break;
            }
          default:
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
        }
        return t$36673;
      })();
      let candidate2 = (t$36674 = fragment.line.closestFragmentTo(fragment, searchLeft), t$36674 == null ? null : t$36674.getClosestCharacterBox(dx));
      if (candidate2 == null) {
        return candidate1;
      }
      let distance1 = math.min(T$.double(), (dart.notNull(candidate1.graphemeClusterLayoutBounds.left) - dart.notNull(dx))[$abs](), (dart.notNull(candidate1.graphemeClusterLayoutBounds.right) - dart.notNull(dx))[$abs]());
      let distance2 = math.min(T$.double(), (dart.notNull(candidate2.graphemeClusterLayoutBounds.left) - dart.notNull(dx))[$abs](), (dart.notNull(candidate2.graphemeClusterLayoutBounds.right) - dart.notNull(dx))[$abs]());
      return distance2 > distance1 ? candidate1 : candidate2;
    }
    [_findLineForY](y) {
      if (y == null) dart.nullFailed(I[368], 455, 39, "y");
      if (dart.test(this.lines[$isEmpty])) {
        return null;
      }
      for (let line of this.lines) {
        if (dart.notNull(y) <= dart.notNull(line.height)) {
          return line;
        }
        y = dart.notNull(y) - dart.notNull(line.height);
      }
      return this.lines[$last];
    }
  };
  (_engine.TextLayoutService.new = function(paragraph) {
    if (paragraph == null) dart.nullFailed(I[368], 24, 26, "paragraph");
    this[width] = -1.0;
    this[height] = 0.0;
    this[longestLine] = null;
    this[minIntrinsicWidth] = 0.0;
    this[maxIntrinsicWidth] = 0.0;
    this[alphabeticBaseline] = -1.0;
    this[ideographicBaseline] = -1.0;
    this[didExceedMaxLines] = false;
    this[lines] = G$.JSArrayOfParagraphLine().of([]);
    this[_paintBounds] = ui.Rect.zero;
    this[__TextLayoutService_spanometer] = null;
    this[__TextLayoutService_spanometer_isSet] = false;
    this[__TextLayoutService_layoutFragmenter] = null;
    this[__TextLayoutService_layoutFragmenter_isSet] = false;
    this[paragraph$0] = paragraph;
    ;
  }).prototype = _engine.TextLayoutService.prototype;
  dart.addRtiResources(_engine.TextLayoutService, ["_engine|TextLayoutService"]);
  dart.setMethodSignature(_engine.TextLayoutService, () => dart.global.Object.setPrototypeOf({
    performLayout: T$10.ParagraphConstraintsTovoid(),
    [_positionLineFragments]: T$12.ParagraphLineTovoid(),
    [_positionFragmentRange]: T$12.__Todouble(),
    [_positionOneFragment]: T$12.ParagraphLineAndintAnddouble__Todouble(),
    getBoxesForPlaceholders: T$10.VoidToListOfTextBox(),
    getBoxesForRange: T$12.intAndintAndBoxHeightStyle__ToListOfTextBox(),
    getPositionForOffset: T$10.OffsetToTextPosition(),
    getClosestGlyphInfo: T$10.OffsetToGlyphInfoN(),
    [_findLineForY]: T$12.doubleToParagraphLineN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextLayoutService))));
  dart.setGetterSignature(_engine.TextLayoutService, () => dart.global.Object.setPrototypeOf({
    paintBounds: T$8.Rect(),
    spanometer: T$12.Spanometer(),
    layoutFragmenter: T$12.LayoutFragmenter(),
    [_paragraphDirection]: T$9.TextDirection()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.TextLayoutService))));
  dart.setLibraryUri(_engine.TextLayoutService, I[220]);
  dart.setFieldSignature(_engine.TextLayoutService, () => dart.global.Object.setPrototypeOf({
    paragraph: {type: T$10.CanvasParagraph(), isConst: false, isFinal: true, libraryUri: I[220]},
    width: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    height: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    longestLine: {type: T$12.ParagraphLineN(), isConst: false, isFinal: false, libraryUri: I[220]},
    minIntrinsicWidth: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxIntrinsicWidth: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    alphabeticBaseline: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    ideographicBaseline: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    didExceedMaxLines: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    lines: {type: T$12.ListOfParagraphLine(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_paintBounds]: {type: T$8.Rect(), isConst: false, isFinal: false, libraryUri: I[198]},
    [__TextLayoutService_spanometer]: {type: T$12.SpanometerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__TextLayoutService_spanometer_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__TextLayoutService_layoutFragmenter]: {type: T$12.LayoutFragmenterN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__TextLayoutService_layoutFragmenter_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextLayoutService))));
  var maxWidth$ = dart.privateName(_engine, "LineBuilder.maxWidth");
  var paragraph$1 = dart.privateName(_engine, "LineBuilder.paragraph");
  var spanometer$ = dart.privateName(_engine, "LineBuilder.spanometer");
  var lineNumber$ = dart.privateName(_engine, "LineBuilder.lineNumber");
  var accumulatedHeight$ = dart.privateName(_engine, "LineBuilder.accumulatedHeight");
  var width$8 = dart.privateName(_engine, "LineBuilder.width");
  var widthIncludingSpace = dart.privateName(_engine, "LineBuilder.widthIncludingSpace");
  var ascent = dart.privateName(_engine, "LineBuilder.ascent");
  var descent = dart.privateName(_engine, "LineBuilder.descent");
  var _fragmentsForNextLine = dart.privateName(_engine, "_fragmentsForNextLine");
  var _lastBreakableFragment = dart.privateName(_engine, "_lastBreakableFragment");
  var _breakCount = dart.privateName(_engine, "_breakCount");
  var _spaceCount = dart.privateName(_engine, "_spaceCount");
  var _trailingSpaces = dart.privateName(_engine, "_trailingSpaces");
  var _fragments = dart.privateName(_engine, "_fragments");
  var _recalculateMetrics = dart.privateName(_engine, "_recalculateMetrics");
  var _widthExcludingLastFragment = dart.privateName(_engine, "_widthExcludingLastFragment");
  var _canAppendEmptyFragments = dart.privateName(_engine, "_canAppendEmptyFragments");
  var _updateMetrics = dart.privateName(_engine, "_updateMetrics");
  var _adjustPlaceholderAscentDescent = dart.privateName(_engine, "_adjustPlaceholderAscentDescent");
  _engine.LineBuilder = class LineBuilder extends core.Object {
    get maxWidth() {
      return this[maxWidth$];
    }
    set maxWidth(value) {
      super.maxWidth = value;
    }
    get paragraph() {
      return this[paragraph$1];
    }
    set paragraph(value) {
      super.paragraph = value;
    }
    get spanometer() {
      return this[spanometer$];
    }
    set spanometer(value) {
      super.spanometer = value;
    }
    get lineNumber() {
      return this[lineNumber$];
    }
    set lineNumber(value) {
      super.lineNumber = value;
    }
    get accumulatedHeight() {
      return this[accumulatedHeight$];
    }
    set accumulatedHeight(value) {
      super.accumulatedHeight = value;
    }
    get width() {
      return this[width$8];
    }
    set width(value) {
      if (value == null) dart.nullFailed(I[368], 543, 10, "width");
      this[width$8] = value;
    }
    get widthIncludingSpace() {
      return this[widthIncludingSpace];
    }
    set widthIncludingSpace(value) {
      if (value == null) dart.nullFailed(I[368], 546, 10, "widthIncludingSpace");
      this[widthIncludingSpace] = value;
    }
    get ascent() {
      return this[ascent];
    }
    set ascent(value) {
      if (value == null) dart.nullFailed(I[368], 553, 10, "ascent");
      this[ascent] = value;
    }
    get descent() {
      return this[descent];
    }
    set descent(value) {
      if (value == null) dart.nullFailed(I[368], 556, 10, "descent");
      this[descent] = value;
    }
    static ['_#_#tearOff'](paragraph, spanometer, opts) {
      if (paragraph == null) dart.nullFailed(I[368], 489, 10, "paragraph");
      if (spanometer == null) dart.nullFailed(I[368], 490, 10, "spanometer");
      let maxWidth = opts && 'maxWidth' in opts ? opts.maxWidth : null;
      if (maxWidth == null) dart.nullFailed(I[368], 491, 19, "maxWidth");
      let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
      if (lineNumber == null) dart.nullFailed(I[368], 492, 19, "lineNumber");
      let accumulatedHeight = opts && 'accumulatedHeight' in opts ? opts.accumulatedHeight : null;
      if (accumulatedHeight == null) dart.nullFailed(I[368], 493, 19, "accumulatedHeight");
      let fragments = opts && 'fragments' in opts ? opts.fragments : null;
      if (fragments == null) dart.nullFailed(I[368], 494, 35, "fragments");
      return new _engine.LineBuilder.__(paragraph, spanometer, {maxWidth: maxWidth, lineNumber: lineNumber, accumulatedHeight: accumulatedHeight, fragments: fragments});
    }
    static first(paragraph, spanometer, opts) {
      if (paragraph == null) dart.nullFailed(I[368], 501, 21, "paragraph");
      if (spanometer == null) dart.nullFailed(I[368], 502, 16, "spanometer");
      let maxWidth = opts && 'maxWidth' in opts ? opts.maxWidth : null;
      if (maxWidth == null) dart.nullFailed(I[368], 503, 21, "maxWidth");
      return new _engine.LineBuilder.__(paragraph, spanometer, {maxWidth: maxWidth, lineNumber: 0, accumulatedHeight: 0.0, fragments: G$.JSArrayOfLayoutFragment().of([])});
    }
    static ['_#first#tearOff'](paragraph, spanometer, opts) {
      if (paragraph == null) dart.nullFailed(I[368], 501, 21, "paragraph");
      if (spanometer == null) dart.nullFailed(I[368], 502, 16, "spanometer");
      let maxWidth = opts && 'maxWidth' in opts ? opts.maxWidth : null;
      if (maxWidth == null) dart.nullFailed(I[368], 503, 21, "maxWidth");
      return _engine.LineBuilder.first(paragraph, spanometer, {maxWidth: maxWidth});
    }
    get startIndex() {
      if (!(dart.test(this[_fragments][$isNotEmpty]) || dart.test(dart.nullCheck(this[_fragmentsForNextLine])[$isNotEmpty]))) dart.assertFailed(null, I[368], 519, 12, "_fragments.isNotEmpty || _fragmentsForNextLine!.isNotEmpty");
      return dart.test(this.isNotEmpty) ? this[_fragments][$first].start : dart.nullCheck(this[_fragmentsForNextLine])[$first].start;
    }
    get endIndex() {
      if (!(dart.test(this[_fragments][$isNotEmpty]) || dart.test(dart.nullCheck(this[_fragmentsForNextLine])[$isNotEmpty]))) dart.assertFailed(null, I[368], 527, 12, "_fragments.isNotEmpty || _fragmentsForNextLine!.isNotEmpty");
      return dart.test(this.isNotEmpty) ? this[_fragments][$last].end : dart.nullCheck(this[_fragmentsForNextLine])[$first].start;
    }
    get [_widthExcludingLastFragment]() {
      return dart.notNull(this[_fragments][$length]) > 1 ? dart.notNull(this.widthIncludingSpace) - dart.notNull(this[_fragments][$last].widthIncludingTrailingSpaces) : 0.0;
    }
    get height() {
      return dart.notNull(this.ascent) + dart.notNull(this.descent);
    }
    get isBreakable() {
      if (dart.test(this[_fragments][$isEmpty])) {
        return false;
      }
      if (dart.test(this[_fragments][$last].isBreak)) {
        return dart.notNull(this[_breakCount]) > 1;
      }
      return dart.notNull(this[_breakCount]) > 0;
    }
    get isNotBreakable() {
      return !dart.test(this.isBreakable);
    }
    get isEmpty() {
      return this[_fragments][$isEmpty];
    }
    get isNotEmpty() {
      return this[_fragments][$isNotEmpty];
    }
    get isHardBreak() {
      return dart.test(this[_fragments][$isNotEmpty]) && dart.test(this[_fragments][$last].isHardBreak);
    }
    get alignOffset() {
      let emptySpace = dart.notNull(this.maxWidth) - dart.notNull(this.width);
      let textAlign = this.paragraph.paragraphStyle.effectiveTextAlign;
      switch (textAlign) {
        case C[763] || CT.C763:
          {
            return emptySpace / 2.0;
          }
        case C[762] || CT.C762:
          {
            return emptySpace;
          }
        case C[765] || CT.C765:
          {
            return this[_paragraphDirection] == ui.TextDirection.rtl ? emptySpace : 0.0;
          }
        case C[766] || CT.C766:
          {
            return this[_paragraphDirection] == ui.TextDirection.rtl ? 0.0 : emptySpace;
          }
        default:
          {
            return 0.0;
          }
      }
    }
    get isOverflowing() {
      return dart.notNull(this.width) > dart.notNull(this.maxWidth);
    }
    get canHaveEllipsis() {
      if (this.paragraph.paragraphStyle.ellipsis == null) {
        return false;
      }
      let maxLines = this.paragraph.paragraphStyle.maxLines;
      return maxLines == null || maxLines === dart.notNull(this.lineNumber) + 1;
    }
    get [_canAppendEmptyFragments]() {
      let t$36674, t$36674$;
      if (dart.test(this.isHardBreak)) {
        return false;
      }
      if (dart.test((t$36674$ = (t$36674 = this[_fragmentsForNextLine], t$36674 == null ? null : t$36674[$isNotEmpty]), t$36674$ == null ? false : t$36674$))) {
        return false;
      }
      return true;
    }
    get [_paragraphDirection]() {
      return this.paragraph.paragraphStyle.effectiveTextDirection;
    }
    addFragment(fragment) {
      if (fragment == null) dart.nullFailed(I[368], 635, 35, "fragment");
      this[_updateMetrics](fragment);
      if (dart.test(fragment.isBreak)) {
        this[_lastBreakableFragment] = this[_fragments][$length];
      }
      this[_fragments][$add](fragment);
    }
    [_updateMetrics](fragment) {
      if (fragment == null) dart.nullFailed(I[368], 646, 38, "fragment");
      this[_spaceCount] = dart.notNull(this[_spaceCount]) + dart.notNull(fragment.trailingSpaces);
      if (dart.test(fragment.isSpaceOnly)) {
        this[_trailingSpaces] = dart.notNull(this[_trailingSpaces]) + dart.notNull(fragment.trailingSpaces);
      } else {
        this[_trailingSpaces] = fragment.trailingSpaces;
        this.width = dart.notNull(this.widthIncludingSpace) + dart.notNull(fragment.widthExcludingTrailingSpaces);
      }
      this.widthIncludingSpace = dart.notNull(this.widthIncludingSpace) + dart.notNull(fragment.widthIncludingTrailingSpaces);
      if (dart.test(fragment.isPlaceholder)) {
        this[_adjustPlaceholderAscentDescent](fragment);
      }
      if (dart.test(fragment.isBreak)) {
        this[_breakCount] = dart.notNull(this[_breakCount]) + 1;
      }
      this.ascent = math.max(T$.double(), this.ascent, fragment.ascent);
      this.descent = math.max(T$.double(), this.descent, fragment.descent);
    }
    [_adjustPlaceholderAscentDescent](fragment) {
      if (fragment == null) dart.nullFailed(I[368], 669, 55, "fragment");
      let placeholder = T$12.PlaceholderSpan()[_as](fragment.span);
      let ascent = null;
      let descent = null;
      switch (placeholder.alignment) {
        case C[746] || CT.C746:
          {
            ascent = this.ascent;
            descent = dart.notNull(placeholder.height) - dart.notNull(this.ascent);
            break;
          }
        case C[747] || CT.C747:
          {
            ascent = dart.notNull(placeholder.height) - dart.notNull(this.descent);
            descent = this.descent;
            break;
          }
        case C[748] || CT.C748:
          {
            let textMidPoint = dart.notNull(this.height) / 2;
            let placeholderMidPoint = dart.notNull(placeholder.height) / 2;
            let diff = placeholderMidPoint - textMidPoint;
            ascent = dart.notNull(this.ascent) + diff;
            descent = dart.notNull(this.descent) + diff;
            break;
          }
        case C[744] || CT.C744:
          {
            ascent = placeholder.height;
            descent = 0.0;
            break;
          }
        case C[745] || CT.C745:
          {
            ascent = 0.0;
            descent = placeholder.height;
            break;
          }
        case C[743] || CT.C743:
          {
            ascent = placeholder.baselineOffset;
            descent = dart.notNull(placeholder.height) - dart.notNull(ascent);
            break;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
      fragment.setMetrics(this.spanometer, {ascent: ascent, descent: descent, widthExcludingTrailingSpaces: fragment.widthExcludingTrailingSpaces, widthIncludingTrailingSpaces: fragment.widthIncludingTrailingSpaces});
    }
    [_recalculateMetrics]() {
      this.width = 0.0;
      this.widthIncludingSpace = 0.0;
      this.ascent = 0.0;
      this.descent = 0.0;
      this[_spaceCount] = 0;
      this[_trailingSpaces] = 0;
      this[_breakCount] = 0;
      this[_lastBreakableFragment] = -1;
      for (let i = 0; i < dart.notNull(this[_fragments][$length]); i = i + 1) {
        this[_updateMetrics](this[_fragments][$_get](i));
        if (dart.test(this[_fragments][$_get](i).isBreak)) {
          this[_lastBreakableFragment] = i;
        }
      }
    }
    forceBreakLastFragment(opts) {
      let availableWidth = opts && 'availableWidth' in opts ? opts.availableWidth : null;
      let allowEmptyLine = opts && 'allowEmptyLine' in opts ? opts.allowEmptyLine : false;
      if (allowEmptyLine == null) dart.nullFailed(I[368], 735, 62, "allowEmptyLine");
      if (!dart.test(this.isNotEmpty)) dart.assertFailed(null, I[368], 736, 12, "isNotEmpty");
      availableWidth == null ? availableWidth = this.maxWidth : null;
      if (!(dart.notNull(this.widthIncludingSpace) > dart.notNull(availableWidth))) dart.assertFailed(null, I[368], 739, 12, "widthIncludingSpace > availableWidth");
      this[_fragmentsForNextLine] == null ? this[_fragmentsForNextLine] = G$.JSArrayOfLayoutFragment().of([]) : null;
      let hasOtherFragments = dart.notNull(this[_fragments][$length]) > 1;
      let allowLastFragmentToBeEmpty = hasOtherFragments || dart.test(allowEmptyLine);
      let lastFragment = this[_fragments][$last];
      if (dart.test(lastFragment.isPlaceholder)) {
        if (allowLastFragmentToBeEmpty) {
          dart.nullCheck(this[_fragmentsForNextLine])[$insert](0, this[_fragments][$removeLast]());
          this[_recalculateMetrics]();
        }
        return;
      }
      this.spanometer.currentSpan = lastFragment.span;
      let lineWidthWithoutLastFragment = dart.notNull(this.widthIncludingSpace) - dart.notNull(lastFragment.widthIncludingTrailingSpaces);
      let availableWidthForFragment = dart.notNull(availableWidth) - lineWidthWithoutLastFragment;
      let forceBreakEnd = dart.notNull(lastFragment.end) - dart.notNull(lastFragment.trailingNewlines);
      let breakingPoint = this.spanometer.forceBreak(lastFragment.start, forceBreakEnd, {availableWidth: availableWidthForFragment, allowEmpty: allowLastFragmentToBeEmpty});
      if (breakingPoint === forceBreakEnd) {
        return;
      }
      this[_fragments][$removeLast]();
      this[_recalculateMetrics]();
      let split = lastFragment.split(breakingPoint);
      let first = split[$first];
      if (first != null) {
        this.spanometer.measureFragment(first);
        this.addFragment(first);
      }
      let second = split[$last];
      if (second != null) {
        this.spanometer.measureFragment(second);
        dart.nullCheck(this[_fragmentsForNextLine])[$insert](0, second);
      }
    }
    insertEllipsis() {
      if (!dart.test(this.canHaveEllipsis)) dart.assertFailed(null, I[368], 796, 12, "canHaveEllipsis");
      if (!dart.test(this.isOverflowing)) dart.assertFailed(null, I[368], 797, 12, "isOverflowing");
      let ellipsisText = dart.nullCheck(this.paragraph.paragraphStyle.ellipsis);
      this[_fragmentsForNextLine] = G$.JSArrayOfLayoutFragment().of([]);
      this.spanometer.currentSpan = this[_fragments][$last].span;
      let ellipsisWidth = this.spanometer.measureText(ellipsisText);
      let availableWidth = math.max(T$.double(), 0.0, dart.notNull(this.maxWidth) - dart.notNull(ellipsisWidth));
      while (dart.notNull(this[_widthExcludingLastFragment]) > availableWidth) {
        dart.nullCheck(this[_fragmentsForNextLine])[$insert](0, this[_fragments][$removeLast]());
        this[_recalculateMetrics]();
        this.spanometer.currentSpan = this[_fragments][$last].span;
        ellipsisWidth = this.spanometer.measureText(ellipsisText);
        availableWidth = dart.notNull(this.maxWidth) - dart.notNull(ellipsisWidth);
      }
      let lastFragment = this[_fragments][$last];
      this.forceBreakLastFragment({availableWidth: availableWidth, allowEmptyLine: true});
      let ellipsisFragment = new _engine.EllipsisFragment.new(this.endIndex, lastFragment.span);
      ellipsisFragment.setMetrics(this.spanometer, {ascent: lastFragment.ascent, descent: lastFragment.descent, widthExcludingTrailingSpaces: ellipsisWidth, widthIncludingTrailingSpaces: ellipsisWidth});
      this.addFragment(ellipsisFragment);
    }
    revertToLastBreakOpportunity() {
      if (!dart.test(this.isBreakable)) dart.assertFailed(null, I[368], 833, 12, "isBreakable");
      let i = dart.notNull(this[_fragments][$length]) - 2;
      while (!dart.test(this[_fragments][$_get](i).isBreak)) {
        i = i - 1;
      }
      this[_fragmentsForNextLine] = this[_fragments][$getRange](i + 1, this[_fragments][$length])[$toList]();
      this[_fragments][$removeRange](i + 1, this[_fragments][$length]);
      this[_recalculateMetrics]();
    }
    appendZeroWidthFragments(fragments, opts) {
      if (fragments == null) dart.nullFailed(I[368], 856, 53, "fragments");
      let startFrom = opts && 'startFrom' in opts ? opts.startFrom : null;
      if (startFrom == null) dart.nullFailed(I[368], 856, 78, "startFrom");
      let i = startFrom;
      while (dart.test(this[_canAppendEmptyFragments]) && dart.notNull(i) < dart.notNull(fragments[$length]) && fragments[$_get](i).widthExcludingTrailingSpaces === 0) {
        this.addFragment(fragments[$_get](i));
        i = dart.notNull(i) + 1;
      }
      return dart.notNull(i) - dart.notNull(startFrom);
    }
    build() {
      if (this[_fragmentsForNextLine] == null) {
        this[_fragmentsForNextLine] = this[_fragments][$getRange](dart.notNull(this[_lastBreakableFragment]) + 1, this[_fragments][$length])[$toList]();
        this[_fragments][$removeRange](dart.notNull(this[_lastBreakableFragment]) + 1, this[_fragments][$length]);
      }
      let trailingNewlines = dart.test(this.isEmpty) ? 0 : this[_fragments][$last].trailingNewlines;
      let line = new _engine.ParagraphLine.new({lineNumber: this.lineNumber, startIndex: this.startIndex, endIndex: this.endIndex, trailingNewlines: trailingNewlines, trailingSpaces: this[_trailingSpaces], spaceCount: this[_spaceCount], hardBreak: this.isHardBreak, width: this.width, widthWithTrailingSpaces: this.widthIncludingSpace, left: this.alignOffset, height: this.height, baseline: dart.notNull(this.accumulatedHeight) + dart.notNull(this.ascent), ascent: this.ascent, descent: this.descent, fragments: this[_fragments], textDirection: this[_paragraphDirection], paragraph: this.paragraph});
      for (let fragment of this[_fragments]) {
        fragment.line = line;
      }
      return line;
    }
    nextLine() {
      let t$36674;
      return new _engine.LineBuilder.__(this.paragraph, this.spanometer, {maxWidth: this.maxWidth, lineNumber: dart.notNull(this.lineNumber) + 1, accumulatedHeight: dart.notNull(this.accumulatedHeight) + dart.notNull(this.height), fragments: (t$36674 = this[_fragmentsForNextLine], t$36674 == null ? G$.JSArrayOfLayoutFragment().of([]) : t$36674)});
    }
  };
  (_engine.LineBuilder.__ = function(paragraph, spanometer, opts) {
    if (paragraph == null) dart.nullFailed(I[368], 489, 10, "paragraph");
    if (spanometer == null) dart.nullFailed(I[368], 490, 10, "spanometer");
    let maxWidth = opts && 'maxWidth' in opts ? opts.maxWidth : null;
    if (maxWidth == null) dart.nullFailed(I[368], 491, 19, "maxWidth");
    let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
    if (lineNumber == null) dart.nullFailed(I[368], 492, 19, "lineNumber");
    let accumulatedHeight = opts && 'accumulatedHeight' in opts ? opts.accumulatedHeight : null;
    if (accumulatedHeight == null) dart.nullFailed(I[368], 493, 19, "accumulatedHeight");
    let fragments = opts && 'fragments' in opts ? opts.fragments : null;
    if (fragments == null) dart.nullFailed(I[368], 494, 35, "fragments");
    this[_fragmentsForNextLine] = null;
    this[width$8] = 0.0;
    this[widthIncludingSpace] = 0.0;
    this[ascent] = 0.0;
    this[descent] = 0.0;
    this[_lastBreakableFragment] = -1;
    this[_breakCount] = 0;
    this[_spaceCount] = 0;
    this[_trailingSpaces] = 0;
    this[paragraph$1] = paragraph;
    this[spanometer$] = spanometer;
    this[maxWidth$] = maxWidth;
    this[lineNumber$] = lineNumber;
    this[accumulatedHeight$] = accumulatedHeight;
    this[_fragments] = fragments;
    this[_recalculateMetrics]();
  }).prototype = _engine.LineBuilder.prototype;
  dart.addRtiResources(_engine.LineBuilder, ["_engine|LineBuilder"]);
  dart.setMethodSignature(_engine.LineBuilder, () => dart.global.Object.setPrototypeOf({
    addFragment: T$12.LayoutFragmentTovoid(),
    [_updateMetrics]: T$12.LayoutFragmentTovoid(),
    [_adjustPlaceholderAscentDescent]: T$12.LayoutFragmentTovoid(),
    [_recalculateMetrics]: T$.VoidTovoid(),
    forceBreakLastFragment: T$12.__Tovoid$24(),
    insertEllipsis: T$.VoidTovoid(),
    revertToLastBreakOpportunity: T$.VoidTovoid(),
    appendZeroWidthFragments: T$12.ListOfLayoutFragment__Toint(),
    build: T$12.VoidToParagraphLine(),
    nextLine: T$12.VoidToLineBuilder()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LineBuilder))));
  dart.setStaticMethodSignature(_engine.LineBuilder, () => ['first']);
  dart.setGetterSignature(_engine.LineBuilder, () => dart.global.Object.setPrototypeOf({
    startIndex: T$.int(),
    endIndex: T$.int(),
    [_widthExcludingLastFragment]: T$.double(),
    height: T$.double(),
    isBreakable: T$.bool(),
    isNotBreakable: T$.bool(),
    isEmpty: T$.bool(),
    isNotEmpty: T$.bool(),
    isHardBreak: T$.bool(),
    alignOffset: T$.double(),
    isOverflowing: T$.bool(),
    canHaveEllipsis: T$.bool(),
    [_canAppendEmptyFragments]: T$.bool(),
    [_paragraphDirection]: T$9.TextDirection()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.LineBuilder))));
  dart.setLibraryUri(_engine.LineBuilder, I[220]);
  dart.setFieldSignature(_engine.LineBuilder, () => dart.global.Object.setPrototypeOf({
    [_fragments]: {type: T$12.ListOfLayoutFragment(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fragmentsForNextLine]: {type: T$12.ListNOfLayoutFragment(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxWidth: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    paragraph: {type: T$10.CanvasParagraph(), isConst: false, isFinal: true, libraryUri: I[220]},
    spanometer: {type: T$12.Spanometer(), isConst: false, isFinal: true, libraryUri: I[220]},
    lineNumber: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    accumulatedHeight: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    width: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    widthIncludingSpace: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    ascent: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    descent: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lastBreakableFragment]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_breakCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_spaceCount]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_trailingSpaces]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LineBuilder))));
  var paragraph$2 = dart.privateName(_engine, "Spanometer.paragraph");
  var _currentRuler = dart.privateName(_engine, "_currentRuler");
  var _currentSpan = dart.privateName(_engine, "_currentSpan");
  _engine.Spanometer = class Spanometer extends core.Object {
    get paragraph() {
      return this[paragraph$2];
    }
    set paragraph(value) {
      super.paragraph = value;
    }
    static ['_#new#tearOff'](paragraph) {
      if (paragraph == null) dart.nullFailed(I[368], 924, 19, "paragraph");
      return new _engine.Spanometer.new(paragraph);
    }
    static get rulers() {
      return _engine.Spanometer._rulers;
    }
    static clearRulersCache() {
      _engine.Spanometer._rulers[$forEach](dart.fn((style, ruler) => {
        if (style == null) dart.nullFailed(I[368], 939, 38, "style");
        if (ruler == null) dart.nullFailed(I[368], 939, 61, "ruler");
        ruler.dispose();
      }, T$12.TextHeightStyleAndTextHeightRulerTovoid()));
      _engine.Spanometer._rulers[$clear]();
    }
    get letterSpacing() {
      return this.currentSpan.style.letterSpacing;
    }
    get currentSpan() {
      return dart.nullCheck(this[_currentSpan]);
    }
    set currentSpan(span) {
      if (span != null) {
        let newCssFontString = span.style.cssFontString;
        if (_engine._lastContextFont != newCssFontString) {
          _engine._lastContextFont = newCssFontString;
          _engine['DomCanvasRenderingContext2DExtension|set#font'](_engine.textContext, newCssFontString);
        }
      }
      if (dart.equals(span, this[_currentSpan])) {
        return;
      }
      this[_currentSpan] = span;
      if (span == null) {
        this[_currentRuler] = null;
        return;
      }
      let heightStyle = span.style.heightStyle;
      let ruler = _engine.Spanometer._rulers[$_get](heightStyle);
      if (ruler == null) {
        ruler = new _engine.TextHeightRuler.new(heightStyle, _engine.Spanometer._rulerHost);
        _engine.Spanometer._rulers[$_set](heightStyle, ruler);
      }
      this[_currentRuler] = ruler;
    }
    get isReady() {
      return this[_currentSpan] != null;
    }
    get ascent() {
      return dart.nullCheck(this[_currentRuler]).alphabeticBaseline;
    }
    get descent() {
      return dart.notNull(this.height) - dart.notNull(this.ascent);
    }
    get height() {
      return dart.nullCheck(this[_currentRuler]).height;
    }
    measureText(text) {
      if (text == null) dart.nullFailed(I[368], 998, 29, "text");
      return _engine.measureSubstring(_engine.textContext, text, 0, text.length);
    }
    measureRange(start, end) {
      if (start == null) dart.nullFailed(I[368], 1002, 27, "start");
      if (end == null) dart.nullFailed(I[368], 1002, 38, "end");
      if (!(this[_currentSpan] != null)) dart.assertFailed(null, I[368], 1003, 12, "_currentSpan != null");
      if (!(dart.notNull(start) >= dart.notNull(this.currentSpan.start) && dart.notNull(start) <= dart.notNull(this.currentSpan.end))) dart.assertFailed(null, I[368], 1006, 12, "start >= currentSpan.start && start <= currentSpan.end");
      if (!(dart.notNull(end) >= dart.notNull(this.currentSpan.start) && dart.notNull(end) <= dart.notNull(this.currentSpan.end))) dart.assertFailed(null, I[368], 1007, 12, "end >= currentSpan.start && end <= currentSpan.end");
      return this[_measure$](start, end);
    }
    measureFragment(fragment) {
      if (fragment == null) dart.nullFailed(I[368], 1012, 39, "fragment");
      if (dart.test(fragment.isPlaceholder)) {
        let placeholder = T$12.PlaceholderSpan()[_as](fragment.span);
        fragment.setMetrics(this, {ascent: placeholder.height, descent: 0.0, widthExcludingTrailingSpaces: placeholder.width, widthIncludingTrailingSpaces: placeholder.width});
      } else {
        this.currentSpan = fragment.span;
        let widthExcludingTrailingSpaces = this[_measure$](fragment.start, dart.notNull(fragment.end) - dart.notNull(fragment.trailingSpaces));
        let widthIncludingTrailingSpaces = this[_measure$](fragment.start, dart.notNull(fragment.end) - dart.notNull(fragment.trailingNewlines));
        fragment.setMetrics(this, {ascent: this.ascent, descent: this.descent, widthExcludingTrailingSpaces: widthExcludingTrailingSpaces, widthIncludingTrailingSpaces: widthIncludingTrailingSpaces});
      }
    }
    forceBreak(start, end, opts) {
      if (start == null) dart.nullFailed(I[368], 1049, 9, "start");
      if (end == null) dart.nullFailed(I[368], 1050, 9, "end");
      let availableWidth = opts && 'availableWidth' in opts ? opts.availableWidth : null;
      if (availableWidth == null) dart.nullFailed(I[368], 1051, 21, "availableWidth");
      let allowEmpty = opts && 'allowEmpty' in opts ? opts.allowEmpty : null;
      if (allowEmpty == null) dart.nullFailed(I[368], 1052, 19, "allowEmpty");
      if (!(this[_currentSpan] != null)) dart.assertFailed(null, I[368], 1054, 12, "_currentSpan != null");
      if (!(dart.notNull(start) >= dart.notNull(this.currentSpan.start) && dart.notNull(start) <= dart.notNull(this.currentSpan.end))) dart.assertFailed(null, I[368], 1057, 12, "start >= currentSpan.start && start <= currentSpan.end");
      if (!(dart.notNull(end) >= dart.notNull(this.currentSpan.start) && dart.notNull(end) <= dart.notNull(this.currentSpan.end))) dart.assertFailed(null, I[368], 1058, 12, "end >= currentSpan.start && end <= currentSpan.end");
      if (dart.notNull(availableWidth) <= 0.0) {
        return dart.test(allowEmpty) ? start : dart.notNull(start) + 1;
      }
      let low = start;
      let high = end;
      while (dart.notNull(high) - dart.notNull(low) > 1) {
        let mid = ((dart.notNull(low) + dart.notNull(high)) / 2)[$truncate]();
        let width = this[_measure$](start, mid);
        if (dart.notNull(width) < dart.notNull(availableWidth)) {
          low = mid;
        } else if (dart.notNull(width) > dart.notNull(availableWidth)) {
          high = mid;
        } else {
          low = high = mid;
        }
      }
      if (low == start && !dart.test(allowEmpty)) {
        low = dart.notNull(low) + 1;
      }
      return low;
    }
    [_measure$](start, end) {
      if (start == null) dart.nullFailed(I[368], 1084, 23, "start");
      if (end == null) dart.nullFailed(I[368], 1084, 34, "end");
      if (!(this[_currentSpan] != null)) dart.assertFailed(null, I[368], 1085, 12, "_currentSpan != null");
      if (!(dart.notNull(start) >= dart.notNull(this.currentSpan.start) && dart.notNull(start) <= dart.notNull(this.currentSpan.end))) dart.assertFailed(null, I[368], 1087, 12, "start >= currentSpan.start && start <= currentSpan.end");
      if (!(dart.notNull(end) >= dart.notNull(this.currentSpan.start) && dart.notNull(end) <= dart.notNull(this.currentSpan.end))) dart.assertFailed(null, I[368], 1088, 12, "end >= currentSpan.start && end <= currentSpan.end");
      return _engine.measureSubstring(_engine.textContext, this.paragraph.plainText, start, end, {letterSpacing: this.letterSpacing});
    }
  };
  (_engine.Spanometer.new = function(paragraph) {
    if (paragraph == null) dart.nullFailed(I[368], 924, 19, "paragraph");
    this[_currentRuler] = null;
    this[_currentSpan] = null;
    this[paragraph$2] = paragraph;
    ;
  }).prototype = _engine.Spanometer.prototype;
  dart.addRtiResources(_engine.Spanometer, ["_engine|Spanometer"]);
  dart.setMethodSignature(_engine.Spanometer, () => dart.global.Object.setPrototypeOf({
    measureText: T$12.StringTodouble(),
    measureRange: T$7.intAndintTodouble(),
    measureFragment: T$12.LayoutFragmentTovoid(),
    forceBreak: T$12.intAndint__Toint$1(),
    [_measure$]: T$7.intAndintTodouble()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Spanometer))));
  dart.setStaticMethodSignature(_engine.Spanometer, () => ['clearRulersCache']);
  dart.setGetterSignature(_engine.Spanometer, () => dart.global.Object.setPrototypeOf({
    letterSpacing: T$9.doubleN(),
    currentSpan: T$12.ParagraphSpan(),
    isReady: T$.bool(),
    ascent: T$.double(),
    descent: T$.double(),
    height: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Spanometer))));
  dart.setSetterSignature(_engine.Spanometer, () => dart.global.Object.setPrototypeOf({currentSpan: T$12.ParagraphSpanN()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.Spanometer))));
  dart.setStaticGetterSignature(_engine.Spanometer, () => ['rulers']);
  dart.setLibraryUri(_engine.Spanometer, I[220]);
  dart.setFieldSignature(_engine.Spanometer, () => dart.global.Object.setPrototypeOf({
    paragraph: {type: T$10.CanvasParagraph(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_currentRuler]: {type: T$12.TextHeightRulerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_currentSpan]: {type: T$12.ParagraphSpanN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Spanometer))));
  dart.setStaticFieldSignature(_engine.Spanometer, () => ['_rulerHost', '_rulers']);
  dart.defineLazy(_engine.Spanometer, {
    /*_engine.Spanometer._rulerHost*/get _rulerHost() {
      return new _engine.RulerHost.new();
    },
    /*_engine.Spanometer._rulers*/get _rulers() {
      return new (G$.LinkedMapOfTextHeightStyle$TextHeightRuler()).new();
    }
  }, false);
  _engine.LineBreakType = class LineBreakType extends core._Enum {
    [_enumToString]() {
      return "LineBreakType." + dart.str(this[_name$]);
    }
  };
  (_engine.LineBreakType.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[369], 23, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[369], 23, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.LineBreakType).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.LineBreakType.prototype;
  dart.addRtiResources(_engine.LineBreakType, ["_engine|LineBreakType"]);
  dart.setMethodSignature(_engine.LineBreakType, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.LineBreakType))));
  dart.setLibraryUri(_engine.LineBreakType, I[220]);
  dart.setStaticFieldSignature(_engine.LineBreakType, () => ['values', 'opportunity', 'prohibited', 'mandatory', 'endOfText']);
  dart.defineLazy(_engine.LineBreakType, {
    /*_engine.LineBreakType.values*/get values() {
      return C[1001] || CT.C1001;
    },
    /*_engine.LineBreakType.opportunity*/get opportunity() {
      return C[997] || CT.C997;
    },
    /*_engine.LineBreakType.prohibited*/get prohibited() {
      return C[996] || CT.C996;
    },
    /*_engine.LineBreakType.mandatory*/get mandatory() {
      return C[998] || CT.C998;
    },
    /*_engine.LineBreakType.endOfText*/get endOfText() {
      return C[999] || CT.C999;
    }
  }, false);
  _engine.LineBreakFragmenter = class LineBreakFragmenter extends _engine.TextFragmenter {
    static new(text) {
      if (text == null) dart.nullFailed(I[369], 42, 38, "text");
      if (js_util.getProperty(T$.ObjectN(), dart.jsInteropNullCheck(dart.global.Intl), "v8BreakIterator") != null) {
        return new _engine.V8LineBreakFragmenter.new(text);
      }
      return new _engine.FWLineBreakFragmenter.new(text);
    }
    static ['_#new#tearOff'](text) {
      if (text == null) dart.nullFailed(I[369], 42, 38, "text");
      return _engine.LineBreakFragmenter.new(text);
    }
  };
  dart.addRtiResources(_engine.LineBreakFragmenter, ["_engine|LineBreakFragmenter"]);
  dart.setStaticMethodSignature(_engine.LineBreakFragmenter, () => ['new']);
  dart.setLibraryUri(_engine.LineBreakFragmenter, I[220]);
  _engine.FWLineBreakFragmenter = class FWLineBreakFragmenter extends _engine.TextFragmenter {
    static ['_#new#tearOff'](text) {
      if (text == null) dart.nullFailed(I[369], 55, 31, "text");
      return new _engine.FWLineBreakFragmenter.new(text);
    }
    fragment() {
      return _engine._computeLineBreakFragments(this.text);
    }
  };
  (_engine.FWLineBreakFragmenter.new = function(text) {
    if (text == null) dart.nullFailed(I[369], 55, 31, "text");
    dart.global.Object.getPrototypeOf(_engine.FWLineBreakFragmenter).new.call(this, text);
    ;
  }).prototype = _engine.FWLineBreakFragmenter.prototype;
  dart.addRtiResources(_engine.FWLineBreakFragmenter, ["_engine|FWLineBreakFragmenter", "_engine|LineBreakFragmenter", "_engine|TextFragmenter"]);
  dart.setMethodSignature(_engine.FWLineBreakFragmenter, () => dart.global.Object.setPrototypeOf({fragment: T$12.VoidToListOfLineBreakFragment()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FWLineBreakFragmenter))));
  dart.setLibraryUri(_engine.FWLineBreakFragmenter, I[220]);
  var _v8BreakIterator = dart.privateName(_engine, "_v8BreakIterator");
  _engine.V8LineBreakFragmenter = class V8LineBreakFragmenter extends _engine.TextFragmenter {
    static ['_#new#tearOff'](text) {
      if (text == null) dart.nullFailed(I[369], 66, 31, "text");
      return new _engine.V8LineBreakFragmenter.new(text);
    }
    fragment() {
      return _engine.breakLinesUsingV8BreakIterator(this.text, js_interop['StringToJSString|get#toJS'](this.text), this[_v8BreakIterator]);
    }
  };
  (_engine.V8LineBreakFragmenter.new = function(text) {
    if (text == null) dart.nullFailed(I[369], 66, 31, "text");
    this[_v8BreakIterator] = _engine.createV8BreakIterator();
    if (!(js_util.getProperty(T$.ObjectN(), dart.jsInteropNullCheck(dart.global.Intl), "v8BreakIterator") != null)) dart.assertFailed(null, I[369], 66, 46, "domIntl.v8BreakIterator != null");
    dart.global.Object.getPrototypeOf(_engine.V8LineBreakFragmenter).new.call(this, text);
    ;
  }).prototype = _engine.V8LineBreakFragmenter.prototype;
  dart.addRtiResources(_engine.V8LineBreakFragmenter, ["_engine|V8LineBreakFragmenter", "_engine|LineBreakFragmenter", "_engine|TextFragmenter"]);
  dart.setMethodSignature(_engine.V8LineBreakFragmenter, () => dart.global.Object.setPrototypeOf({fragment: T$12.VoidToListOfLineBreakFragment()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.V8LineBreakFragmenter))));
  dart.setLibraryUri(_engine.V8LineBreakFragmenter, I[220]);
  dart.setFieldSignature(_engine.V8LineBreakFragmenter, () => dart.global.Object.setPrototypeOf({[_v8BreakIterator]: {type: T$12.DomV8BreakIterator(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.V8LineBreakFragmenter))));
  var type$9 = dart.privateName(_engine, "LineBreakFragment.type");
  var trailingNewlines$0 = dart.privateName(_engine, "LineBreakFragment.trailingNewlines");
  var trailingSpaces$0 = dart.privateName(_engine, "LineBreakFragment.trailingSpaces");
  _engine.LineBreakFragment = class LineBreakFragment extends _engine.TextFragment {
    get type() {
      return this[type$9];
    }
    set type(value) {
      super.type = value;
    }
    get trailingNewlines() {
      return this[trailingNewlines$0];
    }
    set trailingNewlines(value) {
      super.trailingNewlines = value;
    }
    get trailingSpaces() {
      return this[trailingSpaces$0];
    }
    set trailingSpaces(value) {
      super.trailingSpaces = value;
    }
    static ['_#new#tearOff'](start, end, type, opts) {
      if (start == null) dart.nullFailed(I[369], 139, 33, "start");
      if (end == null) dart.nullFailed(I[369], 139, 46, "end");
      if (type == null) dart.nullFailed(I[369], 139, 56, "type");
      let trailingNewlines = opts && 'trailingNewlines' in opts ? opts.trailingNewlines : null;
      if (trailingNewlines == null) dart.nullFailed(I[369], 140, 19, "trailingNewlines");
      let trailingSpaces = opts && 'trailingSpaces' in opts ? opts.trailingSpaces : null;
      if (trailingSpaces == null) dart.nullFailed(I[369], 141, 19, "trailingSpaces");
      return new _engine.LineBreakFragment.new(start, end, type, {trailingNewlines: trailingNewlines, trailingSpaces: trailingSpaces});
    }
    get hashCode() {
      return core.Object.hash(this.start, this.end, this.type, this.trailingNewlines, this.trailingSpaces);
    }
    _equals(other) {
      if (other == null) return false;
      return T$12.LineBreakFragment()[_is](other) && other.start == this.start && other.end == this.end && other.type == this.type && other.trailingNewlines == this.trailingNewlines && other.trailingSpaces == this.trailingSpaces;
    }
    toString() {
      return "LineBreakFragment(" + dart.str(this.start) + ", " + dart.str(this.end) + ", " + dart.str(this.type) + ")";
    }
  };
  (_engine.LineBreakFragment.new = function(start, end, type, opts) {
    if (start == null) dart.nullFailed(I[369], 139, 33, "start");
    if (end == null) dart.nullFailed(I[369], 139, 46, "end");
    if (type == null) dart.nullFailed(I[369], 139, 56, "type");
    let trailingNewlines = opts && 'trailingNewlines' in opts ? opts.trailingNewlines : null;
    if (trailingNewlines == null) dart.nullFailed(I[369], 140, 19, "trailingNewlines");
    let trailingSpaces = opts && 'trailingSpaces' in opts ? opts.trailingSpaces : null;
    if (trailingSpaces == null) dart.nullFailed(I[369], 141, 19, "trailingSpaces");
    this[type$9] = type;
    this[trailingNewlines$0] = trailingNewlines;
    this[trailingSpaces$0] = trailingSpaces;
    dart.global.Object.getPrototypeOf(_engine.LineBreakFragment).new.call(this, start, end);
    ;
  }).prototype = _engine.LineBreakFragment.prototype;
  dart.addRtiResources(_engine.LineBreakFragment, ["_engine|LineBreakFragment"]);
  dart.setLibraryUri(_engine.LineBreakFragment, I[220]);
  dart.setFieldSignature(_engine.LineBreakFragment, () => dart.global.Object.setPrototypeOf({
    type: {type: T$12.LineBreakType(), isConst: false, isFinal: true, libraryUri: I[220]},
    trailingNewlines: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    trailingSpaces: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.LineBreakFragment))));
  dart.defineExtensionMethods(_engine.LineBreakFragment, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.LineBreakFragment, ['hashCode']);
  var _rulerHost = dart.privateName(_engine, "_rulerHost");
  _engine.RulerHost = class RulerHost extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.RulerHost.new();
    }
    dispose() {
      this[_rulerHost].remove();
    }
    addElement(element) {
      if (element == null) dart.nullFailed(I[370], 50, 34, "element");
      this[_rulerHost].append(element);
    }
  };
  (_engine.RulerHost.new = function() {
    let t$36676;
    this[_rulerHost] = _engine.createDomElement("flt-ruler-host");
    t$36676 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this[_rulerHost], "style");
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#position'](t$36676, "fixed");
      _engine['DomCSSStyleDeclarationExtension|set#visibility'](t$36676, "hidden");
      _engine['DomCSSStyleDeclarationExtension|set#overflow'](t$36676, "hidden");
      _engine['DomCSSStyleDeclarationExtension|set#top'](t$36676, "0");
      _engine['DomCSSStyleDeclarationExtension|set#left'](t$36676, "0");
      _engine['DomCSSStyleDeclarationExtension|set#width'](t$36676, "0");
      _engine['DomCSSStyleDeclarationExtension|set#height'](t$36676, "0");
      return t$36676;
    })();
    let renderingHost = dart.nullCheck(_engine.EnginePlatformDispatcher.instance.implicitView).dom.renderingHost;
    T$9.DomNode()[_as](renderingHost.appendChild(this[_rulerHost]));
    _engine.registerHotRestartListener(dart.bind(this, 'dispose'));
  }).prototype = _engine.RulerHost.prototype;
  dart.addRtiResources(_engine.RulerHost, ["_engine|RulerHost"]);
  dart.setMethodSignature(_engine.RulerHost, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    addElement: T$9.DomHTMLElementTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.RulerHost))));
  dart.setLibraryUri(_engine.RulerHost, I[220]);
  dart.setFieldSignature(_engine.RulerHost, () => dart.global.Object.setPrototypeOf({[_rulerHost]: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.RulerHost))));
  var paragraph$3 = dart.privateName(_engine, "TextPaintService.paragraph");
  var _paintBackground = dart.privateName(_engine, "_paintBackground");
  var _paintText = dart.privateName(_engine, "_paintText");
  var _prepareCanvasForFragment = dart.privateName(_engine, "_prepareCanvasForFragment");
  _engine.TextPaintService = class TextPaintService extends core.Object {
    get paragraph() {
      return this[paragraph$3];
    }
    set paragraph(value) {
      super.paragraph = value;
    }
    static ['_#new#tearOff'](paragraph) {
      if (paragraph == null) dart.nullFailed(I[371], 10, 25, "paragraph");
      return new _engine.TextPaintService.new(paragraph);
    }
    paint(canvas, offset) {
      if (canvas == null) dart.nullFailed(I[371], 14, 27, "canvas");
      if (offset == null) dart.nullFailed(I[371], 14, 45, "offset");
      let lines = this.paragraph.lines;
      for (let line of lines) {
        for (let fragment of line.fragments) {
          this[_paintBackground](canvas, offset, fragment);
          this[_paintText](canvas, offset, line, fragment);
        }
      }
    }
    [_paintBackground](canvas, offset, fragment) {
      if (canvas == null) dart.nullFailed(I[371], 29, 18, "canvas");
      if (offset == null) dart.nullFailed(I[371], 30, 15, "offset");
      if (fragment == null) dart.nullFailed(I[371], 31, 20, "fragment");
      if (dart.test(fragment.isPlaceholder)) {
        return;
      }
      let background = T$12.SurfacePaintN()[_as](fragment.style.background);
      if (background != null) {
        let rect = fragment.toPaintingTextBox().toRect();
        if (!dart.test(rect.isEmpty)) {
          canvas.drawRect(rect.shift(offset), background.paintData);
        }
      }
    }
    [_paintText](canvas, offset, line, fragment) {
      let t$36676;
      if (canvas == null) dart.nullFailed(I[371], 48, 18, "canvas");
      if (offset == null) dart.nullFailed(I[371], 49, 15, "offset");
      if (line == null) dart.nullFailed(I[371], 50, 19, "line");
      if (fragment == null) dart.nullFailed(I[371], 51, 20, "fragment");
      if (dart.test(fragment.isPlaceholder)) {
        return;
      }
      if (dart.test(fragment.isSpaceOnly)) {
        return;
      }
      this[_prepareCanvasForFragment](canvas, fragment);
      let fragmentX = dart.nullCheck(fragment.textDirection) === ui.TextDirection.ltr ? fragment.left : fragment.right;
      let x = dart.notNull(offset.dx) + dart.notNull(line.left) + dart.notNull(fragmentX);
      let y = dart.notNull(offset.dy) + dart.notNull(line.baseline);
      let style = fragment.style;
      let text = fragment.getText(this.paragraph);
      canvas.drawText(text, x, y, {style: (t$36676 = style.foreground, t$36676 == null ? null : t$36676.style), shadows: style.shadows});
      canvas.tearDownPaint();
    }
    [_prepareCanvasForFragment](canvas, fragment) {
      if (canvas == null) dart.nullFailed(I[371], 80, 47, "canvas");
      if (fragment == null) dart.nullFailed(I[371], 80, 70, "fragment");
      let style = fragment.style;
      let paint = null;
      let foreground = style.foreground;
      if (foreground != null) {
        paint = T$10.SurfacePaint()[_as](foreground);
      } else {
        paint = T$10.SurfacePaint()[_as](ui.Paint.new());
        if (style.color != null) {
          paint.color = dart.nullCheck(style.color);
        }
      }
      canvas.setCssFont(style.cssFontString, dart.nullCheck(fragment.textDirection));
      canvas.setUpPaint(paint.paintData, null);
    }
  };
  (_engine.TextPaintService.new = function(paragraph) {
    if (paragraph == null) dart.nullFailed(I[371], 10, 25, "paragraph");
    this[paragraph$3] = paragraph;
    ;
  }).prototype = _engine.TextPaintService.prototype;
  dart.addRtiResources(_engine.TextPaintService, ["_engine|TextPaintService"]);
  dart.setMethodSignature(_engine.TextPaintService, () => dart.global.Object.setPrototypeOf({
    paint: T$12.BitmapCanvasAndOffsetTovoid(),
    [_paintBackground]: T$12.BitmapCanvasAndOffsetAndLayoutFragmentTovoid(),
    [_paintText]: T$12.BitmapCanvasAndOffsetAndParagraphLine__Tovoid(),
    [_prepareCanvasForFragment]: T$12.BitmapCanvasAndLayoutFragmentTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextPaintService))));
  dart.setLibraryUri(_engine.TextPaintService, I[220]);
  dart.setFieldSignature(_engine.TextPaintService, () => dart.global.Object.setPrototypeOf({paragraph: {type: T$10.CanvasParagraph(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextPaintService))));
  var hardBreak$ = dart.privateName(_engine, "EngineLineMetrics.hardBreak");
  var ascent$ = dart.privateName(_engine, "EngineLineMetrics.ascent");
  var descent$ = dart.privateName(_engine, "EngineLineMetrics.descent");
  var unscaledAscent$ = dart.privateName(_engine, "EngineLineMetrics.unscaledAscent");
  var height$8 = dart.privateName(_engine, "EngineLineMetrics.height");
  var width$9 = dart.privateName(_engine, "EngineLineMetrics.width");
  var left$4 = dart.privateName(_engine, "EngineLineMetrics.left");
  var baseline$0 = dart.privateName(_engine, "EngineLineMetrics.baseline");
  var lineNumber$0 = dart.privateName(_engine, "EngineLineMetrics.lineNumber");
  _engine.EngineLineMetrics = class EngineLineMetrics extends core.Object {
    get hardBreak() {
      return this[hardBreak$];
    }
    set hardBreak(value) {
      super.hardBreak = value;
    }
    get ascent() {
      return this[ascent$];
    }
    set ascent(value) {
      super.ascent = value;
    }
    get descent() {
      return this[descent$];
    }
    set descent(value) {
      super.descent = value;
    }
    get unscaledAscent() {
      return this[unscaledAscent$];
    }
    set unscaledAscent(value) {
      super.unscaledAscent = value;
    }
    get height() {
      return this[height$8];
    }
    set height(value) {
      super.height = value;
    }
    get width() {
      return this[width$9];
    }
    set width(value) {
      super.width = value;
    }
    get left() {
      return this[left$4];
    }
    set left(value) {
      super.left = value;
    }
    get baseline() {
      return this[baseline$0];
    }
    set baseline(value) {
      super.baseline = value;
    }
    get lineNumber() {
      return this[lineNumber$0];
    }
    set lineNumber(value) {
      super.lineNumber = value;
    }
    static ['_#new#tearOff'](opts) {
      let hardBreak = opts && 'hardBreak' in opts ? opts.hardBreak : null;
      if (hardBreak == null) dart.nullFailed(I[364], 11, 19, "hardBreak");
      let ascent = opts && 'ascent' in opts ? opts.ascent : null;
      if (ascent == null) dart.nullFailed(I[364], 12, 19, "ascent");
      let descent = opts && 'descent' in opts ? opts.descent : null;
      if (descent == null) dart.nullFailed(I[364], 13, 19, "descent");
      let unscaledAscent = opts && 'unscaledAscent' in opts ? opts.unscaledAscent : null;
      if (unscaledAscent == null) dart.nullFailed(I[364], 14, 19, "unscaledAscent");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[364], 15, 19, "height");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[364], 16, 19, "width");
      let left = opts && 'left' in opts ? opts.left : null;
      if (left == null) dart.nullFailed(I[364], 17, 19, "left");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[364], 18, 19, "baseline");
      let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
      if (lineNumber == null) dart.nullFailed(I[364], 19, 19, "lineNumber");
      return new _engine.EngineLineMetrics.new({hardBreak: hardBreak, ascent: ascent, descent: descent, unscaledAscent: unscaledAscent, height: height, width: width, left: left, baseline: baseline, lineNumber: lineNumber});
    }
    get hashCode() {
      return core.Object.hash(this.hardBreak, this.ascent, this.descent, this.unscaledAscent, this.height, this.width, this.left, this.baseline, this.lineNumber);
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$12.EngineLineMetrics()[_is](other) && other.hardBreak == this.hardBreak && other.ascent == this.ascent && other.descent == this.descent && other.unscaledAscent == this.unscaledAscent && other.height == this.height && other.width == this.width && other.left == this.left && other.baseline == this.baseline && other.lineNumber == this.lineNumber;
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "LineMetrics(hardBreak: " + dart.str(this.hardBreak) + ", " + "ascent: " + dart.str(this.ascent) + ", " + "descent: " + dart.str(this.descent) + ", " + "unscaledAscent: " + dart.str(this.unscaledAscent) + ", " + "height: " + dart.str(this.height) + ", " + "width: " + dart.str(this.width) + ", " + "left: " + dart.str(this.left) + ", " + "baseline: " + dart.str(this.baseline) + ", " + "lineNumber: " + dart.str(this.lineNumber) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[364], 85, 12, "() {\n      result = 'LineMetrics(hardBreak: $hardBreak, '\n          'ascent: $ascent, '\n          'descent: $descent, '\n          'unscaledAscent: $unscaledAscent, '\n          'height: $height, '\n          'width: $width, '\n          'left: $left, '\n          'baseline: $baseline, '\n          'lineNumber: $lineNumber)';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.EngineLineMetrics.new = function(opts) {
    let hardBreak = opts && 'hardBreak' in opts ? opts.hardBreak : null;
    if (hardBreak == null) dart.nullFailed(I[364], 11, 19, "hardBreak");
    let ascent = opts && 'ascent' in opts ? opts.ascent : null;
    if (ascent == null) dart.nullFailed(I[364], 12, 19, "ascent");
    let descent = opts && 'descent' in opts ? opts.descent : null;
    if (descent == null) dart.nullFailed(I[364], 13, 19, "descent");
    let unscaledAscent = opts && 'unscaledAscent' in opts ? opts.unscaledAscent : null;
    if (unscaledAscent == null) dart.nullFailed(I[364], 14, 19, "unscaledAscent");
    let height = opts && 'height' in opts ? opts.height : null;
    if (height == null) dart.nullFailed(I[364], 15, 19, "height");
    let width = opts && 'width' in opts ? opts.width : null;
    if (width == null) dart.nullFailed(I[364], 16, 19, "width");
    let left = opts && 'left' in opts ? opts.left : null;
    if (left == null) dart.nullFailed(I[364], 17, 19, "left");
    let baseline = opts && 'baseline' in opts ? opts.baseline : null;
    if (baseline == null) dart.nullFailed(I[364], 18, 19, "baseline");
    let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
    if (lineNumber == null) dart.nullFailed(I[364], 19, 19, "lineNumber");
    this[hardBreak$] = hardBreak;
    this[ascent$] = ascent;
    this[descent$] = descent;
    this[unscaledAscent$] = unscaledAscent;
    this[height$8] = height;
    this[width$9] = width;
    this[left$4] = left;
    this[baseline$0] = baseline;
    this[lineNumber$0] = lineNumber;
    ;
  }).prototype = _engine.EngineLineMetrics.prototype;
  dart.addRtiResources(_engine.EngineLineMetrics, ["_engine|EngineLineMetrics", "ui|LineMetrics"]);
  dart.setLibraryUri(_engine.EngineLineMetrics, I[220]);
  dart.setFieldSignature(_engine.EngineLineMetrics, () => dart.global.Object.setPrototypeOf({
    hardBreak: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    ascent: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    descent: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    unscaledAscent: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    width: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    left: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    baseline: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    lineNumber: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineLineMetrics))));
  dart.defineExtensionMethods(_engine.EngineLineMetrics, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.EngineLineMetrics, ['hashCode']);
  var lineMetrics = dart.privateName(_engine, "ParagraphLine.lineMetrics");
  var startIndex$ = dart.privateName(_engine, "ParagraphLine.startIndex");
  var endIndex$ = dart.privateName(_engine, "ParagraphLine.endIndex");
  var trailingNewlines$1 = dart.privateName(_engine, "ParagraphLine.trailingNewlines");
  var trailingSpaces$1 = dart.privateName(_engine, "ParagraphLine.trailingSpaces");
  var spaceCount$ = dart.privateName(_engine, "ParagraphLine.spaceCount");
  var widthWithTrailingSpaces$ = dart.privateName(_engine, "ParagraphLine.widthWithTrailingSpaces");
  var fragments$ = dart.privateName(_engine, "ParagraphLine.fragments");
  var textDirection$0 = dart.privateName(_engine, "ParagraphLine.textDirection");
  var displayText$ = dart.privateName(_engine, "ParagraphLine.displayText");
  var paragraph$4 = dart.privateName(_engine, "ParagraphLine.paragraph");
  var __ParagraphLine_visibleEndIndex = dart.privateName(_engine, "_#ParagraphLine#visibleEndIndex");
  var __ParagraphLine_visibleEndIndex_isSet = dart.privateName(_engine, "_#ParagraphLine#visibleEndIndex#isSet");
  var __ParagraphLine_graphemeStarts = dart.privateName(_engine, "_#ParagraphLine#graphemeStarts");
  var __ParagraphLine_graphemeStarts_isSet = dart.privateName(_engine, "_#ParagraphLine#graphemeStarts#isSet");
  var _fallbackGraphemeStartIterable = dart.privateName(_engine, "_fallbackGraphemeStartIterable");
  var _fromDomSegmenter = dart.privateName(_engine, "_fromDomSegmenter");
  var _breakTextIntoGraphemes = dart.privateName(_engine, "_breakTextIntoGraphemes");
  _engine.ParagraphLine = class ParagraphLine extends core.Object {
    get lineMetrics() {
      return this[lineMetrics];
    }
    set lineMetrics(value) {
      super.lineMetrics = value;
    }
    get startIndex() {
      return this[startIndex$];
    }
    set startIndex(value) {
      super.startIndex = value;
    }
    get endIndex() {
      return this[endIndex$];
    }
    set endIndex(value) {
      super.endIndex = value;
    }
    get trailingNewlines() {
      return this[trailingNewlines$1];
    }
    set trailingNewlines(value) {
      super.trailingNewlines = value;
    }
    get trailingSpaces() {
      return this[trailingSpaces$1];
    }
    set trailingSpaces(value) {
      super.trailingSpaces = value;
    }
    get spaceCount() {
      return this[spaceCount$];
    }
    set spaceCount(value) {
      super.spaceCount = value;
    }
    get widthWithTrailingSpaces() {
      return this[widthWithTrailingSpaces$];
    }
    set widthWithTrailingSpaces(value) {
      super.widthWithTrailingSpaces = value;
    }
    get fragments() {
      return this[fragments$];
    }
    set fragments(value) {
      super.fragments = value;
    }
    get textDirection() {
      return this[textDirection$0];
    }
    set textDirection(value) {
      super.textDirection = value;
    }
    get displayText() {
      return this[displayText$];
    }
    set displayText(value) {
      super.displayText = value;
    }
    get paragraph() {
      return this[paragraph$4];
    }
    set paragraph(value) {
      super.paragraph = value;
    }
    static ['_#new#tearOff'](opts) {
      let hardBreak = opts && 'hardBreak' in opts ? opts.hardBreak : null;
      if (hardBreak == null) dart.nullFailed(I[364], 103, 19, "hardBreak");
      let ascent = opts && 'ascent' in opts ? opts.ascent : null;
      if (ascent == null) dart.nullFailed(I[364], 104, 21, "ascent");
      let descent = opts && 'descent' in opts ? opts.descent : null;
      if (descent == null) dart.nullFailed(I[364], 105, 21, "descent");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[364], 106, 21, "height");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[364], 107, 21, "width");
      let left = opts && 'left' in opts ? opts.left : null;
      if (left == null) dart.nullFailed(I[364], 108, 21, "left");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[364], 109, 21, "baseline");
      let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
      if (lineNumber == null) dart.nullFailed(I[364], 110, 18, "lineNumber");
      let startIndex = opts && 'startIndex' in opts ? opts.startIndex : null;
      if (startIndex == null) dart.nullFailed(I[364], 111, 19, "startIndex");
      let endIndex = opts && 'endIndex' in opts ? opts.endIndex : null;
      if (endIndex == null) dart.nullFailed(I[364], 112, 19, "endIndex");
      let trailingNewlines = opts && 'trailingNewlines' in opts ? opts.trailingNewlines : null;
      if (trailingNewlines == null) dart.nullFailed(I[364], 113, 19, "trailingNewlines");
      let trailingSpaces = opts && 'trailingSpaces' in opts ? opts.trailingSpaces : null;
      if (trailingSpaces == null) dart.nullFailed(I[364], 114, 19, "trailingSpaces");
      let spaceCount = opts && 'spaceCount' in opts ? opts.spaceCount : null;
      if (spaceCount == null) dart.nullFailed(I[364], 115, 19, "spaceCount");
      let widthWithTrailingSpaces = opts && 'widthWithTrailingSpaces' in opts ? opts.widthWithTrailingSpaces : null;
      if (widthWithTrailingSpaces == null) dart.nullFailed(I[364], 116, 19, "widthWithTrailingSpaces");
      let fragments = opts && 'fragments' in opts ? opts.fragments : null;
      if (fragments == null) dart.nullFailed(I[364], 117, 19, "fragments");
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      if (textDirection == null) dart.nullFailed(I[364], 118, 19, "textDirection");
      let paragraph = opts && 'paragraph' in opts ? opts.paragraph : null;
      if (paragraph == null) dart.nullFailed(I[364], 119, 19, "paragraph");
      let displayText = opts && 'displayText' in opts ? opts.displayText : null;
      return new _engine.ParagraphLine.new({hardBreak: hardBreak, ascent: ascent, descent: descent, height: height, width: width, left: left, baseline: baseline, lineNumber: lineNumber, startIndex: startIndex, endIndex: endIndex, trailingNewlines: trailingNewlines, trailingSpaces: trailingSpaces, spaceCount: spaceCount, widthWithTrailingSpaces: widthWithTrailingSpaces, fragments: fragments, textDirection: textDirection, paragraph: paragraph, displayText: displayText});
    }
    get visibleEndIndex() {
      let t$36683;
      if (!dart.test(this[__ParagraphLine_visibleEndIndex_isSet])) {
        let t$36676 = (() => {
          let t$36677 = null;
          let t$36$350$350 = this.fragments;
          let t$36$350$351 = null;
          let t$36$350$351$35isSet = false;
          let t$36$350$356 = null;
          let t$36$350$356$35isSet = false;
          L10: {
            {
              if (dart.notNull(t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350[$length])) <= 0) {
                t$36677 = this.startIndex;
                break L10;
              }
            }
            {
              let rest = null;
              if (dart.notNull(t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350[$length])) >= 1 && T$12.ListOfLayoutFragment()[_is](t$36$350$356$35isSet ? t$36$350$356 : (t$36$350$356$35isSet = true, t$36$350$356 = t$36$350$350[$sublist](0, dart.notNull(t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350[$length])) - 1))) && (rest = t$36$350$356$35isSet ? t$36$350$356 : (t$36$350$356$35isSet = true, t$36$350$356 = t$36$350$350[$sublist](0, dart.notNull(t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350[$length])) - 1)), true) && T$12.EllipsisFragment()[_is](t$36$350$350[$_get](dart.notNull(t$36$350$351$35isSet ? t$36$350$351 : (t$36$350$351$35isSet = true, t$36$350$351 = t$36$350$350[$length])) - 1)) || T$12.ListOfLayoutFragment()[_is](t$36$350$350) && (rest = t$36$350$350, true)) {
                t$36677 = rest[$last].end;
                break L10;
              }
            }
            dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
          }
          return t$36677;
        })();
        if (dart.test(this[__ParagraphLine_visibleEndIndex_isSet])) dart.throw(new _internal.LateError.fieldADI("visibleEndIndex"));
        this[__ParagraphLine_visibleEndIndex] = t$36676;
        this[__ParagraphLine_visibleEndIndex_isSet] = true;
      }
      t$36683 = this[__ParagraphLine_visibleEndIndex];
      return t$36683;
    }
    get nonTrailingSpaces() {
      return dart.notNull(this.spaceCount) - dart.notNull(this.trailingSpaces);
    }
    get hardBreak() {
      return this.lineMetrics.hardBreak;
    }
    get ascent() {
      return this.lineMetrics.ascent;
    }
    get descent() {
      return this.lineMetrics.descent;
    }
    get unscaledAscent() {
      return this.lineMetrics.unscaledAscent;
    }
    get height() {
      return this.lineMetrics.height;
    }
    get width() {
      return this.lineMetrics.width;
    }
    get left() {
      return this.lineMetrics.left;
    }
    get baseline() {
      return this.lineMetrics.baseline;
    }
    get lineNumber() {
      return this.lineMetrics.lineNumber;
    }
    overlapsWith(startIndex, endIndex) {
      if (startIndex == null) dart.nullFailed(I[364], 209, 25, "startIndex");
      if (endIndex == null) dart.nullFailed(I[364], 209, 41, "endIndex");
      return dart.notNull(startIndex) < dart.notNull(this.endIndex) && dart.notNull(this.startIndex) < dart.notNull(endIndex);
    }
    getText(paragraph) {
      if (paragraph == null) dart.nullFailed(I[364], 213, 34, "paragraph");
      let buffer = new core.StringBuffer.new();
      for (let fragment of this.fragments) {
        buffer.write(fragment.getText(paragraph));
      }
      return dart.toString(buffer);
    }
    [_fallbackGraphemeStartIterable](lineText) {
      if (lineText == null) dart.nullFailed(I[364], 224, 51, "lineText");
      let graphemeStarts = G.JSArrayOfint().of([]);
      let precededByHighSurrogate = false;
      for (let i = 0; i < lineText.length; i = i + 1) {
        let maskedCodeUnit = lineText[$codeUnitAt](i) & 64512;
        if (maskedCodeUnit !== 56320 || !precededByHighSurrogate) {
          graphemeStarts[$add](dart.notNull(this.startIndex) + i);
        }
        precededByHighSurrogate = maskedCodeUnit === 55296;
      }
      return graphemeStarts;
    }
    [_fromDomSegmenter](fragmentText) {
      if (fragmentText == null) dart.nullFailed(I[364], 239, 38, "fragmentText");
      let domSegmenter = _engine.createIntlSegmenter({granularity: "grapheme"});
      let graphemeStarts = G.JSArrayOfint().of([]);
      let segments = _engine['DomSegmentsExtension|iterator'](_engine['DomSegmenterExtension|segment'](domSegmenter, fragmentText));
      while (dart.test(segments.moveNext())) {
        graphemeStarts[$add](dart.notNull(_engine['DomSegmentExtension|get#index'](segments.current)) + dart.notNull(this.startIndex));
      }
      if (!(dart.test(graphemeStarts[$isEmpty]) || graphemeStarts[$first] == this.startIndex)) dart.assertFailed(null, I[364], 246, 12, "graphemeStarts.isEmpty || graphemeStarts.first == startIndex");
      return graphemeStarts;
    }
    [_breakTextIntoGraphemes](text) {
      if (text == null) dart.nullFailed(I[364], 250, 44, "text");
      let graphemeStarts = js_util.getProperty(T$.ObjectN(), dart.jsInteropNullCheck(dart.global.Intl), "Segmenter") == null ? this[_fallbackGraphemeStartIterable](text) : this[_fromDomSegmenter](text);
      if (dart.test(graphemeStarts[$isNotEmpty])) {
        graphemeStarts[$add](this.visibleEndIndex);
      }
      return graphemeStarts;
    }
    get graphemeStarts() {
      let t$36684;
      if (!dart.test(this[__ParagraphLine_graphemeStarts_isSet])) {
        let t$36683 = this.visibleEndIndex == this.startIndex ? C[134] || CT.C134 : this[_breakTextIntoGraphemes](this.paragraph.plainText[$substring](this.startIndex, this.visibleEndIndex));
        if (dart.test(this[__ParagraphLine_graphemeStarts_isSet])) dart.throw(new _internal.LateError.fieldADI("graphemeStarts"));
        this[__ParagraphLine_graphemeStarts] = t$36683;
        this[__ParagraphLine_graphemeStarts_isSet] = true;
      }
      t$36684 = this[__ParagraphLine_graphemeStarts];
      return t$36684;
    }
    graphemeStartIndexBefore(offset, start, end) {
      if (offset == null) dart.nullFailed(I[364], 275, 36, "offset");
      if (start == null) dart.nullFailed(I[364], 275, 48, "start");
      if (end == null) dart.nullFailed(I[364], 275, 59, "end");
      let low = start;
      let high = end;
      if (!(0 <= dart.notNull(low))) dart.assertFailed(null, I[364], 278, 12, "0 <= low");
      if (!(dart.notNull(low) < dart.notNull(high))) dart.assertFailed(null, I[364], 279, 12, "low < high");
      let lineGraphemeBreaks = this.graphemeStarts;
      if (!(dart.notNull(offset) >= dart.notNull(lineGraphemeBreaks[$_get](start)))) dart.assertFailed(null, I[364], 282, 12, "offset >= lineGraphemeBreaks[start]");
      if (!(dart.notNull(offset) < dart.notNull(lineGraphemeBreaks[$last]))) dart.assertFailed(dart.str(offset) + ", " + dart.str(lineGraphemeBreaks), I[364], 283, 12, "offset < lineGraphemeBreaks.last");
      if (!(end == lineGraphemeBreaks[$length] || dart.notNull(offset) < dart.notNull(lineGraphemeBreaks[$_get](end)))) dart.assertFailed(null, I[364], 284, 12, "end == lineGraphemeBreaks.length || offset < lineGraphemeBreaks[end]");
      while (dart.notNull(low) + 2 <= dart.notNull(high)) {
        let mid = ((dart.notNull(low) + dart.notNull(high)) / 2)[$truncate]();
        L11: {
          let t$36$350$350 = dart.notNull(lineGraphemeBreaks[$_get](mid)) - dart.notNull(offset);
          {
            if (t$36$350$350 > 0) {
              {
                high = mid;
                break L11;
              }
            }
          }
          {
            if (t$36$350$350 < 0) {
              {
                low = mid;
                break L11;
              }
            }
          }
          {
            if (t$36$350$350 === 0) {
              {
                return mid;
              }
            }
          }
        }
      }
      if (!(dart.notNull(lineGraphemeBreaks[$_get](low)) <= dart.notNull(offset))) dart.assertFailed(null, I[364], 295, 12, "lineGraphemeBreaks[low] <= offset");
      if (!(high == lineGraphemeBreaks[$length] || dart.notNull(offset) < dart.notNull(lineGraphemeBreaks[$_get](high)))) dart.assertFailed(null, I[364], 296, 12, "high == lineGraphemeBreaks.length || offset < lineGraphemeBreaks[high]");
      return low;
    }
    getCharacterRangeAt(codeUnitOffset) {
      if (codeUnitOffset == null) dart.nullFailed(I[364], 302, 41, "codeUnitOffset");
      if (!(dart.notNull(codeUnitOffset) >= dart.notNull(this.startIndex))) dart.assertFailed(null, I[364], 303, 12, "codeUnitOffset >= this.startIndex");
      if (dart.notNull(codeUnitOffset) >= dart.notNull(this.visibleEndIndex) || dart.test(this.graphemeStarts[$isEmpty])) {
        return null;
      }
      let startIndex = this.graphemeStartIndexBefore(codeUnitOffset, 0, this.graphemeStarts[$length]);
      if (!(dart.notNull(startIndex) < dart.notNull(this.graphemeStarts[$length]) - 1)) dart.assertFailed(null, I[364], 309, 12, "startIndex < graphemeStarts.length - 1");
      return new ui.TextRange.new({start: this.graphemeStarts[$_get](startIndex), end: this.graphemeStarts[$_get](dart.notNull(startIndex) + 1)});
    }
    closestFragmentTo(targetFragment, searchLeft) {
      let t$36685, t$36686;
      if (targetFragment == null) dart.nullFailed(I[364], 313, 52, "targetFragment");
      if (searchLeft == null) dart.nullFailed(I[364], 313, 73, "searchLeft");
      let closestFragment = null;
      for (let fragment of this.fragments) {
        if (!!T$12.EllipsisFragment()[_is](fragment)) dart.assertFailed(null, I[364], 316, 14, "fragment is! EllipsisFragment");
        if (dart.notNull(fragment.start) >= dart.notNull(this.visibleEndIndex)) {
          break;
        }
        if (fragment.graphemeStartIndexRange == null) {
          continue;
        }
        let distance = dart.test(searchLeft) ? dart.notNull(targetFragment.left) - dart.notNull(fragment.right) : dart.notNull(fragment.left) - dart.notNull(targetFragment.right);
        let minDistance = (t$36685 = closestFragment, t$36685 == null ? null : t$36685.distance);
        L12: {
          let t$36$350$350 = distance;
          {
            if (t$36$350$350 > 0 && (minDistance == null || dart.notNull(minDistance) > distance)) {
              {
                closestFragment = dart.recordLiteral("2;distance,fragment", 0, ["distance", "fragment"], [distance, fragment]);
                break L12;
              }
            }
          }
          {
            if (t$36$350$350 === 0) {
              {
                return fragment;
              }
            }
          }
          {
            {
              {
                continue;
              }
            }
          }
        }
      }
      t$36686 = closestFragment;
      return t$36686 == null ? null : t$36686.fragment;
    }
    closestFragmentAtOffset(dx) {
      let t$36686, t$36686$;
      if (dx == null) dart.nullFailed(I[364], 340, 50, "dx");
      if (dart.test(this.graphemeStarts[$isEmpty])) {
        return null;
      }
      if (!(dart.notNull(this.graphemeStarts[$length]) >= 2)) dart.assertFailed(null, I[364], 344, 12, "graphemeStarts.length >= 2");
      let graphemeIndex = 0;
      let closestFragment = null;
      for (let fragment of this.fragments) {
        if (!!T$12.EllipsisFragment()[_is](fragment)) dart.assertFailed(null, I[364], 348, 14, "fragment is! EllipsisFragment");
        if (dart.notNull(fragment.start) >= dart.notNull(this.visibleEndIndex)) {
          break;
        }
        if (fragment.length === 0) {
          continue;
        }
        while (dart.notNull(fragment.start) > dart.notNull(this.graphemeStarts[$_get](graphemeIndex))) {
          graphemeIndex = graphemeIndex + 1;
        }
        let firstGraphemeStartInFragment = this.graphemeStarts[$_get](graphemeIndex);
        if (dart.notNull(firstGraphemeStartInFragment) >= dart.notNull(fragment.end)) {
          continue;
        }
        let distance = null;
        if (dart.notNull(dx) < dart.notNull(fragment.left)) {
          distance = dart.notNull(fragment.left) - dart.notNull(dx);
        } else if (dart.notNull(dx) > dart.notNull(fragment.right)) {
          distance = dart.notNull(dx) - dart.notNull(fragment.right);
        } else {
          return fragment;
        }
        if (!(dart.notNull(distance) > 0)) dart.assertFailed(null, I[364], 370, 14, "distance > 0");
        let minDistance = (t$36686 = closestFragment, t$36686 == null ? null : t$36686.distance);
        if (minDistance == null || dart.notNull(minDistance) > dart.notNull(distance)) {
          closestFragment = dart.recordLiteral("2;distance,fragment", 0, ["distance", "fragment"], [distance, fragment]);
        }
      }
      t$36686$ = closestFragment;
      return t$36686$ == null ? null : t$36686$.fragment;
    }
    get hashCode() {
      return core.Object.hash(this.lineMetrics, this.startIndex, this.endIndex, this.trailingNewlines, this.trailingSpaces, this.spaceCount, this.widthWithTrailingSpaces, this.fragments, this.textDirection, this.displayText);
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$12.ParagraphLine()[_is](other) && dart.equals(other.lineMetrics, this.lineMetrics) && other.startIndex == this.startIndex && other.endIndex == this.endIndex && other.trailingNewlines == this.trailingNewlines && other.trailingSpaces == this.trailingSpaces && other.spaceCount == this.spaceCount && other.widthWithTrailingSpaces == this.widthWithTrailingSpaces && dart.equals(other.fragments, this.fragments) && other.textDirection == this.textDirection && other.displayText == this.displayText;
    }
    toString() {
      return dart.strSafe(dart_rti.createRuntimeType(T$12.ParagraphLine())) + "(" + dart.str(this.startIndex) + ", " + dart.str(this.endIndex) + ", " + dart.str(this.lineMetrics) + ")";
    }
  };
  (_engine.ParagraphLine.new = function(opts) {
    let hardBreak = opts && 'hardBreak' in opts ? opts.hardBreak : null;
    if (hardBreak == null) dart.nullFailed(I[364], 103, 19, "hardBreak");
    let ascent = opts && 'ascent' in opts ? opts.ascent : null;
    if (ascent == null) dart.nullFailed(I[364], 104, 21, "ascent");
    let descent = opts && 'descent' in opts ? opts.descent : null;
    if (descent == null) dart.nullFailed(I[364], 105, 21, "descent");
    let height = opts && 'height' in opts ? opts.height : null;
    if (height == null) dart.nullFailed(I[364], 106, 21, "height");
    let width = opts && 'width' in opts ? opts.width : null;
    if (width == null) dart.nullFailed(I[364], 107, 21, "width");
    let left = opts && 'left' in opts ? opts.left : null;
    if (left == null) dart.nullFailed(I[364], 108, 21, "left");
    let baseline = opts && 'baseline' in opts ? opts.baseline : null;
    if (baseline == null) dart.nullFailed(I[364], 109, 21, "baseline");
    let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
    if (lineNumber == null) dart.nullFailed(I[364], 110, 18, "lineNumber");
    let startIndex = opts && 'startIndex' in opts ? opts.startIndex : null;
    if (startIndex == null) dart.nullFailed(I[364], 111, 19, "startIndex");
    let endIndex = opts && 'endIndex' in opts ? opts.endIndex : null;
    if (endIndex == null) dart.nullFailed(I[364], 112, 19, "endIndex");
    let trailingNewlines = opts && 'trailingNewlines' in opts ? opts.trailingNewlines : null;
    if (trailingNewlines == null) dart.nullFailed(I[364], 113, 19, "trailingNewlines");
    let trailingSpaces = opts && 'trailingSpaces' in opts ? opts.trailingSpaces : null;
    if (trailingSpaces == null) dart.nullFailed(I[364], 114, 19, "trailingSpaces");
    let spaceCount = opts && 'spaceCount' in opts ? opts.spaceCount : null;
    if (spaceCount == null) dart.nullFailed(I[364], 115, 19, "spaceCount");
    let widthWithTrailingSpaces = opts && 'widthWithTrailingSpaces' in opts ? opts.widthWithTrailingSpaces : null;
    if (widthWithTrailingSpaces == null) dart.nullFailed(I[364], 116, 19, "widthWithTrailingSpaces");
    let fragments = opts && 'fragments' in opts ? opts.fragments : null;
    if (fragments == null) dart.nullFailed(I[364], 117, 19, "fragments");
    let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
    if (textDirection == null) dart.nullFailed(I[364], 118, 19, "textDirection");
    let paragraph = opts && 'paragraph' in opts ? opts.paragraph : null;
    if (paragraph == null) dart.nullFailed(I[364], 119, 19, "paragraph");
    let displayText = opts && 'displayText' in opts ? opts.displayText : null;
    this[__ParagraphLine_visibleEndIndex] = null;
    this[__ParagraphLine_visibleEndIndex_isSet] = false;
    this[__ParagraphLine_graphemeStarts] = null;
    this[__ParagraphLine_graphemeStarts_isSet] = false;
    this[startIndex$] = startIndex;
    this[endIndex$] = endIndex;
    this[trailingNewlines$1] = trailingNewlines;
    this[trailingSpaces$1] = trailingSpaces;
    this[spaceCount$] = spaceCount;
    this[widthWithTrailingSpaces$] = widthWithTrailingSpaces;
    this[fragments$] = fragments;
    this[textDirection$0] = textDirection;
    this[paragraph$4] = paragraph;
    this[displayText$] = displayText;
    if (!(dart.notNull(trailingNewlines) <= dart.notNull(endIndex) - dart.notNull(startIndex))) dart.assertFailed(null, I[364], 121, 15, "trailingNewlines <= endIndex - startIndex");
    this[lineMetrics] = new _engine.EngineLineMetrics.new({hardBreak: hardBreak, ascent: ascent, descent: descent, unscaledAscent: ascent, height: height, width: width, left: left, baseline: baseline, lineNumber: lineNumber});
    ;
  }).prototype = _engine.ParagraphLine.prototype;
  dart.addRtiResources(_engine.ParagraphLine, ["_engine|ParagraphLine"]);
  dart.setMethodSignature(_engine.ParagraphLine, () => dart.global.Object.setPrototypeOf({
    overlapsWith: T$.intAndintTobool(),
    getText: T$12.CanvasParagraphToString(),
    [_fallbackGraphemeStartIterable]: T$3.StringToListOfint(),
    [_fromDomSegmenter]: T$3.StringToListOfint(),
    [_breakTextIntoGraphemes]: T$3.StringToListOfint(),
    graphemeStartIndexBefore: T$.intAndintAndintToint(),
    getCharacterRangeAt: T$12.intToTextRangeN(),
    closestFragmentTo: T$12.LayoutFragmentAndboolToLayoutFragmentN(),
    closestFragmentAtOffset: T$12.doubleToLayoutFragmentN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ParagraphLine))));
  dart.setGetterSignature(_engine.ParagraphLine, () => dart.global.Object.setPrototypeOf({
    visibleEndIndex: T$.int(),
    nonTrailingSpaces: T$.int(),
    hardBreak: T$.bool(),
    ascent: T$.double(),
    descent: T$.double(),
    unscaledAscent: T$.double(),
    height: T$.double(),
    width: T$.double(),
    left: T$.double(),
    baseline: T$.double(),
    lineNumber: T$.int(),
    graphemeStarts: T$.ListOfint()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ParagraphLine))));
  dart.setLibraryUri(_engine.ParagraphLine, I[220]);
  dart.setFieldSignature(_engine.ParagraphLine, () => dart.global.Object.setPrototypeOf({
    lineMetrics: {type: T$12.EngineLineMetrics(), isConst: false, isFinal: true, libraryUri: I[220]},
    startIndex: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    endIndex: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [__ParagraphLine_visibleEndIndex]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__ParagraphLine_visibleEndIndex_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    trailingNewlines: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    trailingSpaces: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    spaceCount: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    widthWithTrailingSpaces: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    fragments: {type: T$12.ListOfLayoutFragment(), isConst: false, isFinal: true, libraryUri: I[11]},
    textDirection: {type: T$9.TextDirection(), isConst: false, isFinal: true, libraryUri: I[198]},
    displayText: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    paragraph: {type: T$10.CanvasParagraph(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__ParagraphLine_graphemeStarts]: {type: T$2.ListNOfint(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__ParagraphLine_graphemeStarts_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ParagraphLine))));
  dart.defineExtensionMethods(_engine.ParagraphLine, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.ParagraphLine, ['hashCode']);
  var textAlign$ = dart.privateName(_engine, "EngineParagraphStyle.textAlign");
  var textDirection$1 = dart.privateName(_engine, "EngineParagraphStyle.textDirection");
  var fontWeight$0 = dart.privateName(_engine, "EngineParagraphStyle.fontWeight");
  var fontStyle$0 = dart.privateName(_engine, "EngineParagraphStyle.fontStyle");
  var maxLines$ = dart.privateName(_engine, "EngineParagraphStyle.maxLines");
  var fontFamily$ = dart.privateName(_engine, "EngineParagraphStyle.fontFamily");
  var fontSize$0 = dart.privateName(_engine, "EngineParagraphStyle.fontSize");
  var height$9 = dart.privateName(_engine, "EngineParagraphStyle.height");
  var ellipsis$ = dart.privateName(_engine, "EngineParagraphStyle.ellipsis");
  var locale$1 = dart.privateName(_engine, "EngineParagraphStyle.locale");
  _engine.EngineParagraphStyle = class EngineParagraphStyle extends core.Object {
    get textAlign() {
      return this[textAlign$];
    }
    set textAlign(value) {
      super.textAlign = value;
    }
    get textDirection() {
      return this[textDirection$1];
    }
    set textDirection(value) {
      super.textDirection = value;
    }
    get fontWeight() {
      return this[fontWeight$0];
    }
    set fontWeight(value) {
      super.fontWeight = value;
    }
    get fontStyle() {
      return this[fontStyle$0];
    }
    set fontStyle(value) {
      super.fontStyle = value;
    }
    get maxLines() {
      return this[maxLines$];
    }
    set maxLines(value) {
      super.maxLines = value;
    }
    get fontFamily() {
      return this[fontFamily$];
    }
    set fontFamily(value) {
      super.fontFamily = value;
    }
    get fontSize() {
      return this[fontSize$0];
    }
    set fontSize(value) {
      super.fontSize = value;
    }
    get height() {
      return this[height$9];
    }
    set height(value) {
      super.height = value;
    }
    get ellipsis() {
      return this[ellipsis$];
    }
    set ellipsis(value) {
      super.ellipsis = value;
    }
    get locale() {
      return this[locale$1];
    }
    set locale(value) {
      super.locale = value;
    }
    static ['_#new#tearOff'](opts) {
      let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      let maxLines = opts && 'maxLines' in opts ? opts.maxLines : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let textHeightBehavior = opts && 'textHeightBehavior' in opts ? opts.textHeightBehavior : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let strutStyle = opts && 'strutStyle' in opts ? opts.strutStyle : null;
      let ellipsis = opts && 'ellipsis' in opts ? opts.ellipsis : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      return new _engine.EngineParagraphStyle.new({textAlign: textAlign, textDirection: textDirection, maxLines: maxLines, fontFamily: fontFamily, fontSize: fontSize, height: height, textHeightBehavior: textHeightBehavior, fontWeight: fontWeight, fontStyle: fontStyle, strutStyle: strutStyle, ellipsis: ellipsis, locale: locale});
    }
    get effectiveTextAlign() {
      let t$36686;
      t$36686 = this.textAlign;
      return t$36686 == null ? ui.TextAlign.start : t$36686;
    }
    get effectiveTextDirection() {
      let t$36686;
      t$36686 = this.textDirection;
      return t$36686 == null ? ui.TextDirection.ltr : t$36686;
    }
    get lineHeight() {
      let t$36686, t$36686$, t$36686$0;
      let strutStyle = this[_strutStyle];
      let strutHeight = (t$36686 = strutStyle, t$36686 == null ? null : t$36686[_height$0]);
      if (strutStyle == null || strutHeight == null || strutHeight === 0) {
        return this.height;
      }
      if (dart.test((t$36686$ = strutStyle[_forceStrutHeight], t$36686$ == null ? false : t$36686$))) {
        return strutHeight;
      }
      return math.max(T$.double(), strutHeight, (t$36686$0 = this.height, t$36686$0 == null ? 0.0 : t$36686$0));
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$11.EngineParagraphStyle()[_is](other) && other.textAlign == this.textAlign && other.textDirection == this.textDirection && dart.equals(other.fontWeight, this.fontWeight) && other.fontStyle == this.fontStyle && other.maxLines == this.maxLines && other.fontFamily == this.fontFamily && other.fontSize == this.fontSize && other.height == this.height && dart.equals(other[_textHeightBehavior], this[_textHeightBehavior]) && dart.equals(other[_strutStyle], this[_strutStyle]) && other.ellipsis == this.ellipsis && dart.equals(other.locale, this.locale);
    }
    get hashCode() {
      return core.Object.hash(this.textAlign, this.textDirection, this.fontWeight, this.fontStyle, this.maxLines, this.fontFamily, this.fontSize, this.height, this[_textHeightBehavior], this[_strutStyle], this.ellipsis, this.locale);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        let t$36686, t$36686$, t$36686$0, t$36686$1, t$36686$2, t$36686$3, t$36686$4, t$36686$5, t$36686$6;
        let fontSize = this.fontSize;
        let height = this.height;
        result = "ParagraphStyle(" + "textAlign: " + dart.str((t$36686 = this.textAlign, t$36686 == null ? "unspecified" : t$36686)) + ", " + "textDirection: " + dart.str((t$36686$ = this.textDirection, t$36686$ == null ? "unspecified" : t$36686$)) + ", " + "fontWeight: " + dart.str((t$36686$0 = this.fontWeight, t$36686$0 == null ? "unspecified" : t$36686$0)) + ", " + "fontStyle: " + dart.str((t$36686$1 = this.fontStyle, t$36686$1 == null ? "unspecified" : t$36686$1)) + ", " + "maxLines: " + dart.str((t$36686$2 = this.maxLines, t$36686$2 == null ? "unspecified" : t$36686$2)) + ", " + "textHeightBehavior: " + dart.str((t$36686$3 = this[_textHeightBehavior], t$36686$3 == null ? "unspecified" : t$36686$3)) + ", " + "fontFamily: " + dart.str((t$36686$4 = this.fontFamily, t$36686$4 == null ? "unspecified" : t$36686$4)) + ", " + "fontSize: " + (fontSize != null ? fontSize[$toStringAsFixed](1) : "unspecified") + ", " + "height: " + (height != null ? height[$toStringAsFixed](1) + "x" : "unspecified") + ", " + "strutStyle: " + dart.str((t$36686$5 = this[_strutStyle], t$36686$5 == null ? "unspecified" : t$36686$5)) + ", " + "ellipsis: " + (this.ellipsis != null ? "\"" + dart.str(this.ellipsis) + "\"" : "unspecified") + ", " + "locale: " + dart.str((t$36686$6 = this.locale, t$36686$6 == null ? "unspecified" : t$36686$6)) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[364], 522, 12, "() {\n      final double? fontSize = this.fontSize;\n      final double? height = this.height;\n      result = 'ParagraphStyle('\n          'textAlign: ${textAlign ?? \"unspecified\"}, '\n          'textDirection: ${textDirection ?? \"unspecified\"}, '\n          'fontWeight: ${fontWeight ?? \"unspecified\"}, '\n          'fontStyle: ${fontStyle ?? \"unspecified\"}, '\n          'maxLines: ${maxLines ?? \"unspecified\"}, '\n          'textHeightBehavior: ${_textHeightBehavior ?? \"unspecified\"}, '\n          'fontFamily: ${fontFamily ?? \"unspecified\"}, '\n          'fontSize: ${fontSize != null ? fontSize.toStringAsFixed(1) : \"unspecified\"}, '\n          'height: ${height != null ? \"${height.toStringAsFixed(1)}x\" : \"unspecified\"}, '\n          'strutStyle: ${_strutStyle ?? \"unspecified\"}, '\n          'ellipsis: ${ellipsis != null ? '\"$ellipsis\"' : \"unspecified\"}, '\n          'locale: ${locale ?? \"unspecified\"}'\n          ')';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.EngineParagraphStyle.new = function(opts) {
    let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
    let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
    let maxLines = opts && 'maxLines' in opts ? opts.maxLines : null;
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
    let height = opts && 'height' in opts ? opts.height : null;
    let textHeightBehavior = opts && 'textHeightBehavior' in opts ? opts.textHeightBehavior : null;
    let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
    let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
    let strutStyle = opts && 'strutStyle' in opts ? opts.strutStyle : null;
    let ellipsis = opts && 'ellipsis' in opts ? opts.ellipsis : null;
    let locale = opts && 'locale' in opts ? opts.locale : null;
    this[textAlign$] = textAlign;
    this[textDirection$1] = textDirection;
    this[maxLines$] = maxLines;
    this[fontFamily$] = fontFamily;
    this[fontSize$0] = fontSize;
    this[fontWeight$0] = fontWeight;
    this[fontStyle$0] = fontStyle;
    this[ellipsis$] = ellipsis;
    this[locale$1] = locale;
    this[_textHeightBehavior] = textHeightBehavior;
    this[_strutStyle] = T$12.EngineStrutStyleN()[_as](strutStyle);
    this[height$9] = height === 0 ? null : height;
    ;
  }).prototype = _engine.EngineParagraphStyle.prototype;
  dart.addRtiResources(_engine.EngineParagraphStyle, ["_engine|EngineParagraphStyle", "ui|ParagraphStyle"]);
  dart.setGetterSignature(_engine.EngineParagraphStyle, () => dart.global.Object.setPrototypeOf({
    effectiveTextAlign: T$9.TextAlign(),
    effectiveTextDirection: T$9.TextDirection(),
    lineHeight: T$9.doubleN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineParagraphStyle))));
  dart.setLibraryUri(_engine.EngineParagraphStyle, I[220]);
  dart.setFieldSignature(_engine.EngineParagraphStyle, () => dart.global.Object.setPrototypeOf({
    textAlign: {type: T$10.TextAlignN(), isConst: false, isFinal: true, libraryUri: I[198]},
    textDirection: {type: T$10.TextDirectionN(), isConst: false, isFinal: true, libraryUri: I[198]},
    fontWeight: {type: T$10.FontWeightN(), isConst: false, isFinal: true, libraryUri: I[198]},
    fontStyle: {type: T$10.FontStyleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    maxLines: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontFamily: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontSize: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_textHeightBehavior]: {type: T$10.TextHeightBehaviorN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_strutStyle]: {type: T$12.EngineStrutStyleN(), isConst: false, isFinal: true, libraryUri: I[220]},
    ellipsis: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    locale: {type: T$10.LocaleN(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineParagraphStyle))));
  dart.defineExtensionMethods(_engine.EngineParagraphStyle, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.EngineParagraphStyle, ['hashCode']);
  var color$6 = dart.privateName(_engine, "EngineTextStyle.color");
  var decoration$0 = dart.privateName(_engine, "EngineTextStyle.decoration");
  var decorationColor$0 = dart.privateName(_engine, "EngineTextStyle.decorationColor");
  var decorationStyle$0 = dart.privateName(_engine, "EngineTextStyle.decorationStyle");
  var decorationThickness$0 = dart.privateName(_engine, "EngineTextStyle.decorationThickness");
  var fontWeight$1 = dart.privateName(_engine, "EngineTextStyle.fontWeight");
  var fontStyle$1 = dart.privateName(_engine, "EngineTextStyle.fontStyle");
  var textBaseline$0 = dart.privateName(_engine, "EngineTextStyle.textBaseline");
  var isFontFamilyProvided = dart.privateName(_engine, "EngineTextStyle.isFontFamilyProvided");
  var fontFamily$0 = dart.privateName(_engine, "EngineTextStyle.fontFamily");
  var fontFamilyFallback$ = dart.privateName(_engine, "EngineTextStyle.fontFamilyFallback");
  var fontFeatures$0 = dart.privateName(_engine, "EngineTextStyle.fontFeatures");
  var fontVariations$0 = dart.privateName(_engine, "EngineTextStyle.fontVariations");
  var fontSize$1 = dart.privateName(_engine, "EngineTextStyle.fontSize");
  var letterSpacing$0 = dart.privateName(_engine, "EngineTextStyle.letterSpacing");
  var wordSpacing$0 = dart.privateName(_engine, "EngineTextStyle.wordSpacing");
  var height$10 = dart.privateName(_engine, "EngineTextStyle.height");
  var leadingDistribution$1 = dart.privateName(_engine, "EngineTextStyle.leadingDistribution");
  var locale$2 = dart.privateName(_engine, "EngineTextStyle.locale");
  var background$0 = dart.privateName(_engine, "EngineTextStyle.background");
  var foreground$0 = dart.privateName(_engine, "EngineTextStyle.foreground");
  var shadows$0 = dart.privateName(_engine, "EngineTextStyle.shadows");
  var _cssFontString = dart.privateName(_engine, "_cssFontString");
  var __EngineTextStyle_heightStyle = dart.privateName(_engine, "_#EngineTextStyle#heightStyle");
  var __EngineTextStyle_heightStyle_isSet = dart.privateName(_engine, "_#EngineTextStyle#heightStyle#isSet");
  var _createHeightStyle = dart.privateName(_engine, "_createHeightStyle");
  _engine.EngineTextStyle = class EngineTextStyle extends core.Object {
    get color() {
      return this[color$6];
    }
    set color(value) {
      super.color = value;
    }
    get decoration() {
      return this[decoration$0];
    }
    set decoration(value) {
      super.decoration = value;
    }
    get decorationColor() {
      return this[decorationColor$0];
    }
    set decorationColor(value) {
      super.decorationColor = value;
    }
    get decorationStyle() {
      return this[decorationStyle$0];
    }
    set decorationStyle(value) {
      super.decorationStyle = value;
    }
    get decorationThickness() {
      return this[decorationThickness$0];
    }
    set decorationThickness(value) {
      super.decorationThickness = value;
    }
    get fontWeight() {
      return this[fontWeight$1];
    }
    set fontWeight(value) {
      super.fontWeight = value;
    }
    get fontStyle() {
      return this[fontStyle$1];
    }
    set fontStyle(value) {
      super.fontStyle = value;
    }
    get textBaseline() {
      return this[textBaseline$0];
    }
    set textBaseline(value) {
      super.textBaseline = value;
    }
    get isFontFamilyProvided() {
      return this[isFontFamilyProvided];
    }
    set isFontFamilyProvided(value) {
      super.isFontFamilyProvided = value;
    }
    get fontFamily() {
      return this[fontFamily$0];
    }
    set fontFamily(value) {
      super.fontFamily = value;
    }
    get fontFamilyFallback() {
      return this[fontFamilyFallback$];
    }
    set fontFamilyFallback(value) {
      super.fontFamilyFallback = value;
    }
    get fontFeatures() {
      return this[fontFeatures$0];
    }
    set fontFeatures(value) {
      super.fontFeatures = value;
    }
    get fontVariations() {
      return this[fontVariations$0];
    }
    set fontVariations(value) {
      super.fontVariations = value;
    }
    get fontSize() {
      return this[fontSize$1];
    }
    set fontSize(value) {
      super.fontSize = value;
    }
    get letterSpacing() {
      return this[letterSpacing$0];
    }
    set letterSpacing(value) {
      super.letterSpacing = value;
    }
    get wordSpacing() {
      return this[wordSpacing$0];
    }
    set wordSpacing(value) {
      super.wordSpacing = value;
    }
    get height() {
      return this[height$10];
    }
    set height(value) {
      super.height = value;
    }
    get leadingDistribution() {
      return this[leadingDistribution$1];
    }
    set leadingDistribution(value) {
      super.leadingDistribution = value;
    }
    get locale() {
      return this[locale$2];
    }
    set locale(value) {
      super.locale = value;
    }
    get background() {
      return this[background$0];
    }
    set background(value) {
      super.background = value;
    }
    get foreground() {
      return this[foreground$0];
    }
    set foreground(value) {
      super.foreground = value;
    }
    get shadows() {
      return this[shadows$0];
    }
    set shadows(value) {
      super.shadows = value;
    }
    static ['_#new#tearOff'](opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      return new _engine.EngineTextStyle.only({color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, leadingDistribution: leadingDistribution, locale: locale, background: background, foreground: foreground, shadows: shadows, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
    static ['_#only#tearOff'](opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      return new _engine.EngineTextStyle.only({color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, leadingDistribution: leadingDistribution, locale: locale, background: background, foreground: foreground, shadows: shadows, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
    static fromParagraphStyle(paragraphStyle) {
      if (paragraphStyle == null) dart.nullFailed(I[364], 612, 26, "paragraphStyle");
      return new _engine.EngineTextStyle.only({fontWeight: paragraphStyle.fontWeight, fontStyle: paragraphStyle.fontStyle, fontFamily: paragraphStyle.fontFamily, fontSize: paragraphStyle.fontSize, height: paragraphStyle.height, locale: paragraphStyle.locale});
    }
    static ['_#fromParagraphStyle#tearOff'](paragraphStyle) {
      if (paragraphStyle == null) dart.nullFailed(I[364], 612, 26, "paragraphStyle");
      return _engine.EngineTextStyle.fromParagraphStyle(paragraphStyle);
    }
    get effectiveFontFamily() {
      let fontFamily = this.fontFamily[$isEmpty] ? "sans-serif" : this.fontFamily;
      let result = fontFamily;
      if (!dart.test(dart.fn(() => {
        if (dart.test(ui_web.debugEmulateFlutterTesterEnvironment) && !dart.test(_engine.EngineTextStyle._testFonts[$contains](fontFamily))) {
          result = _engine.EngineTextStyle._testFonts[$first];
        }
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[364], 653, 12, "() {\n      if (ui_web.debugEmulateFlutterTesterEnvironment && !_testFonts.contains(fontFamily)) {\n        result = _testFonts.first;\n      }\n      return true;\n    }()");
      return result;
    }
    get cssFontString() {
      let t$36686;
      t$36686 = this[_cssFontString];
      return t$36686 == null ? this[_cssFontString] = _engine.buildCssFontString({fontStyle: this.fontStyle, fontWeight: this.fontWeight, fontSize: this.fontSize, fontFamily: this.effectiveFontFamily}) : t$36686;
    }
    get heightStyle() {
      let t$36687;
      if (!dart.test(this[__EngineTextStyle_heightStyle_isSet])) {
        let t$36686 = this[_createHeightStyle]();
        if (dart.test(this[__EngineTextStyle_heightStyle_isSet])) dart.throw(new _internal.LateError.fieldADI("heightStyle"));
        this[__EngineTextStyle_heightStyle] = t$36686;
        this[__EngineTextStyle_heightStyle_isSet] = true;
      }
      t$36687 = this[__EngineTextStyle_heightStyle];
      return t$36687;
    }
    [_createHeightStyle]() {
      let t$36687;
      return new _engine.TextHeightStyle.new({fontFamily: this.effectiveFontFamily, fontSize: (t$36687 = this.fontSize, t$36687 == null ? 14 : t$36687), height: this.height, fontFeatures: null, fontVariations: null});
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      return T$12.EngineTextStyle()[_is](other) && dart.equals(other.color, this.color) && dart.equals(other.decoration, this.decoration) && dart.equals(other.decorationColor, this.decorationColor) && other.decorationStyle == this.decorationStyle && dart.equals(other.fontWeight, this.fontWeight) && other.fontStyle == this.fontStyle && other.textBaseline == this.textBaseline && other.leadingDistribution == this.leadingDistribution && other.fontFamily == this.fontFamily && other.fontSize == this.fontSize && other.letterSpacing == this.letterSpacing && other.wordSpacing == this.wordSpacing && other.height == this.height && other.decorationThickness == this.decorationThickness && dart.equals(other.locale, this.locale) && dart.equals(other.background, this.background) && dart.equals(other.foreground, this.foreground) && dart.test(_engine.listEquals(T$9.Shadow(), other.shadows, this.shadows)) && dart.test(_engine.listEquals(T$.String(), other.fontFamilyFallback, this.fontFamilyFallback)) && dart.test(_engine.listEquals(T$9.FontFeature(), other.fontFeatures, this.fontFeatures)) && dart.test(_engine.listEquals(T$9.FontVariation(), other.fontVariations, this.fontVariations));
    }
    get hashCode() {
      let shadows = this.shadows;
      let fontFeatures = this.fontFeatures;
      let fontVariations = this.fontVariations;
      let fontFamilyFallback = this.fontFamilyFallback;
      return core.Object.hash(this.color, this.decoration, this.decorationColor, this.decorationStyle, this.fontWeight, this.fontStyle, this.textBaseline, this.leadingDistribution, this.fontFamily, fontFamilyFallback == null ? null : core.Object.hashAll(fontFamilyFallback), this.fontSize, this.letterSpacing, this.wordSpacing, this.height, this.locale, this.background, this.foreground, shadows == null ? null : core.Object.hashAll(shadows), this.decorationThickness, core.Object.hash(fontFeatures == null ? null : core.Object.hashAll(fontFeatures), fontVariations == null ? null : core.Object.hashAll(fontVariations)));
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        let t$36687, t$36687$, t$36687$0, t$36687$1, t$36687$2, t$36687$3, t$36687$4, t$36687$5, t$36687$6, t$36687$7, t$36687$8, t$36687$9, t$36687$10, t$36687$11, t$36687$12;
        let fontFamilyFallback = this.fontFamilyFallback;
        let fontSize = this.fontSize;
        let height = this.height;
        result = "TextStyle(" + "color: " + dart.str((t$36687 = this.color, t$36687 == null ? "unspecified" : t$36687)) + ", " + "decoration: " + dart.str((t$36687$ = this.decoration, t$36687$ == null ? "unspecified" : t$36687$)) + ", " + "decorationColor: " + dart.str((t$36687$0 = this.decorationColor, t$36687$0 == null ? "unspecified" : t$36687$0)) + ", " + "decorationStyle: " + dart.str((t$36687$1 = this.decorationStyle, t$36687$1 == null ? "unspecified" : t$36687$1)) + ", " + "decorationThickness: " + dart.str((t$36687$2 = this.decorationThickness, t$36687$2 == null ? "unspecified" : t$36687$2)) + ", " + "fontWeight: " + dart.str((t$36687$3 = this.fontWeight, t$36687$3 == null ? "unspecified" : t$36687$3)) + ", " + "fontStyle: " + dart.str((t$36687$4 = this.fontStyle, t$36687$4 == null ? "unspecified" : t$36687$4)) + ", " + "textBaseline: " + dart.str((t$36687$5 = this.textBaseline, t$36687$5 == null ? "unspecified" : t$36687$5)) + ", " + "fontFamily: " + dart.str(dart.test(this.isFontFamilyProvided) && this.fontFamily !== "" ? this.fontFamily : "unspecified") + ", " + "fontFamilyFallback: " + dart.str(dart.test(this.isFontFamilyProvided) && fontFamilyFallback != null && dart.test(fontFamilyFallback[$isNotEmpty]) ? fontFamilyFallback : "unspecified") + ", " + "fontSize: " + (fontSize != null ? fontSize[$toStringAsFixed](1) : "unspecified") + ", " + "letterSpacing: " + (this.letterSpacing != null ? dart.str(this.letterSpacing) + "x" : "unspecified") + ", " + "wordSpacing: " + (this.wordSpacing != null ? dart.str(this.wordSpacing) + "x" : "unspecified") + ", " + "height: " + (height != null ? height[$toStringAsFixed](1) + "x" : "unspecified") + ", " + "leadingDistribution: " + dart.str((t$36687$6 = this.leadingDistribution, t$36687$6 == null ? "unspecified" : t$36687$6)) + ", " + "locale: " + dart.str((t$36687$7 = this.locale, t$36687$7 == null ? "unspecified" : t$36687$7)) + ", " + "background: " + dart.str((t$36687$8 = this.background, t$36687$8 == null ? "unspecified" : t$36687$8)) + ", " + "foreground: " + dart.str((t$36687$9 = this.foreground, t$36687$9 == null ? "unspecified" : t$36687$9)) + ", " + "shadows: " + dart.str((t$36687$10 = this.shadows, t$36687$10 == null ? "unspecified" : t$36687$10)) + ", " + "fontFeatures: " + dart.str((t$36687$11 = this.fontFeatures, t$36687$11 == null ? "unspecified" : t$36687$11)) + ", " + "fontVariations: " + dart.str((t$36687$12 = this.fontVariations, t$36687$12 == null ? "unspecified" : t$36687$12)) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[364], 756, 12, "() {\n      final List<String>? fontFamilyFallback = this.fontFamilyFallback;\n      final double? fontSize = this.fontSize;\n      final double? height = this.height;\n      result = 'TextStyle('\n          'color: ${color ?? \"unspecified\"}, '\n          'decoration: ${decoration ?? \"unspecified\"}, '\n          'decorationColor: ${decorationColor ?? \"unspecified\"}, '\n          'decorationStyle: ${decorationStyle ?? \"unspecified\"}, '\n          'decorationThickness: ${decorationThickness ?? \"unspecified\"}, '\n          'fontWeight: ${fontWeight ?? \"unspecified\"}, '\n          'fontStyle: ${fontStyle ?? \"unspecified\"}, '\n          'textBaseline: ${textBaseline ?? \"unspecified\"}, '\n          'fontFamily: ${isFontFamilyProvided && fontFamily != '' ? fontFamily : \"unspecified\"}, '\n          'fontFamilyFallback: ${isFontFamilyProvided && fontFamilyFallback != null && fontFamilyFallback.isNotEmpty ? fontFamilyFallback : \"unspecified\"}, '\n          'fontSize: ${fontSize != null ? fontSize.toStringAsFixed(1) : \"unspecified\"}, '\n          'letterSpacing: ${letterSpacing != null ? \"${letterSpacing}x\" : \"unspecified\"}, '\n          'wordSpacing: ${wordSpacing != null ? \"${wordSpacing}x\" : \"unspecified\"}, '\n          'height: ${height != null ? \"${height.toStringAsFixed(1)}x\" : \"unspecified\"}, '\n          'leadingDistribution: ${leadingDistribution ?? \"unspecified\"}, '\n          'locale: ${locale ?? \"unspecified\"}, '\n          'background: ${background ?? \"unspecified\"}, '\n          'foreground: ${foreground ?? \"unspecified\"}, '\n          'shadows: ${shadows ?? \"unspecified\"}, '\n          'fontFeatures: ${fontFeatures ?? \"unspecified\"}, '\n          'fontVariations: ${fontVariations ?? \"unspecified\"}'\n          ')';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.EngineTextStyle.only = function(opts) {
    let t$36686;
    let color = opts && 'color' in opts ? opts.color : null;
    let decoration = opts && 'decoration' in opts ? opts.decoration : null;
    let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
    let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
    let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
    let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
    let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
    let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
    let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
    let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
    let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
    let height = opts && 'height' in opts ? opts.height : null;
    let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
    let locale = opts && 'locale' in opts ? opts.locale : null;
    let background = opts && 'background' in opts ? opts.background : null;
    let foreground = opts && 'foreground' in opts ? opts.foreground : null;
    let shadows = opts && 'shadows' in opts ? opts.shadows : null;
    let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
    let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
    this[_cssFontString] = null;
    this[__EngineTextStyle_heightStyle] = null;
    this[__EngineTextStyle_heightStyle_isSet] = false;
    this[color$6] = color;
    this[decoration$0] = decoration;
    this[decorationColor$0] = decorationColor;
    this[decorationStyle$0] = decorationStyle;
    this[decorationThickness$0] = decorationThickness;
    this[fontWeight$1] = fontWeight;
    this[fontStyle$1] = fontStyle;
    this[textBaseline$0] = textBaseline;
    this[fontFamilyFallback$] = fontFamilyFallback;
    this[fontSize$1] = fontSize;
    this[letterSpacing$0] = letterSpacing;
    this[wordSpacing$0] = wordSpacing;
    this[height$10] = height;
    this[leadingDistribution$1] = leadingDistribution;
    this[locale$2] = locale;
    this[background$0] = background;
    this[foreground$0] = foreground;
    this[shadows$0] = shadows;
    this[fontFeatures$0] = fontFeatures;
    this[fontVariations$0] = fontVariations;
    if (!(color == null || foreground == null)) dart.assertFailed("Cannot provide both a color and a foreground\nThe color argument is just a shorthand for \"foreground: Paint()..color = color\".", I[364], 603, 13, "color == null || foreground == null");
    this[isFontFamilyProvided] = fontFamily != null;
    this[fontFamily$0] = (t$36686 = fontFamily, t$36686 == null ? "" : t$36686);
    ;
  }).prototype = _engine.EngineTextStyle.prototype;
  dart.addRtiResources(_engine.EngineTextStyle, ["_engine|EngineTextStyle", "ui|TextStyle"]);
  dart.setMethodSignature(_engine.EngineTextStyle, () => dart.global.Object.setPrototypeOf({[_createHeightStyle]: T$12.VoidToTextHeightStyle()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineTextStyle))));
  dart.setStaticMethodSignature(_engine.EngineTextStyle, () => ['new', 'fromParagraphStyle']);
  dart.setGetterSignature(_engine.EngineTextStyle, () => dart.global.Object.setPrototypeOf({
    effectiveFontFamily: T$.String(),
    cssFontString: T$.String(),
    heightStyle: T$12.TextHeightStyle()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineTextStyle))));
  dart.setLibraryUri(_engine.EngineTextStyle, I[220]);
  dart.setFieldSignature(_engine.EngineTextStyle, () => dart.global.Object.setPrototypeOf({
    color: {type: T$10.ColorN(), isConst: false, isFinal: true, libraryUri: I[198]},
    decoration: {type: T$10.TextDecorationN(), isConst: false, isFinal: true, libraryUri: I[198]},
    decorationColor: {type: T$10.ColorN(), isConst: false, isFinal: true, libraryUri: I[198]},
    decorationStyle: {type: T$10.TextDecorationStyleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    decorationThickness: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontWeight: {type: T$10.FontWeightN(), isConst: false, isFinal: true, libraryUri: I[198]},
    fontStyle: {type: T$10.FontStyleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    textBaseline: {type: T$10.TextBaselineN(), isConst: false, isFinal: true, libraryUri: I[198]},
    isFontFamilyProvided: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontFamily: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontFamilyFallback: {type: T$.ListNOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontFeatures: {type: T$10.ListNOfFontFeature(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontVariations: {type: T$10.ListNOfFontVariation(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontSize: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    letterSpacing: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    wordSpacing: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    leadingDistribution: {type: T$10.TextLeadingDistributionN(), isConst: false, isFinal: true, libraryUri: I[198]},
    locale: {type: T$10.LocaleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    background: {type: T$12.PaintN(), isConst: false, isFinal: true, libraryUri: I[198]},
    foreground: {type: T$12.PaintN(), isConst: false, isFinal: true, libraryUri: I[198]},
    shadows: {type: T$10.ListNOfShadow(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_cssFontString]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__EngineTextStyle_heightStyle]: {type: T$12.TextHeightStyleN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EngineTextStyle_heightStyle_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineTextStyle))));
  dart.setStaticFieldSignature(_engine.EngineTextStyle, () => ['_testFonts']);
  dart.defineExtensionMethods(_engine.EngineTextStyle, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.EngineTextStyle, ['hashCode']);
  dart.defineLazy(_engine.EngineTextStyle, {
    /*_engine.EngineTextStyle._testFonts*/get _testFonts() {
      return G.JSArrayOfString().of(["FlutterTest", "Ahem"]);
    }
  }, false);
  _engine.EngineStrutStyle = class EngineStrutStyle extends core.Object {
    static ['_#new#tearOff'](opts) {
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let leading = opts && 'leading' in opts ? opts.leading : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let forceStrutHeight = opts && 'forceStrutHeight' in opts ? opts.forceStrutHeight : null;
      return new _engine.EngineStrutStyle.new({fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize: fontSize, height: height, leadingDistribution: leadingDistribution, leading: leading, fontWeight: fontWeight, fontStyle: fontStyle, forceStrutHeight: forceStrutHeight});
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$12.EngineStrutStyle()[_is](other) && other[_fontFamily] == this[_fontFamily] && other[_fontSize] == this[_fontSize] && other[_height$0] == this[_height$0] && other[_leading] == this[_leading] && other[_leadingDistribution] == this[_leadingDistribution] && dart.equals(other[_fontWeight], this[_fontWeight]) && other[_fontStyle] == this[_fontStyle] && other[_forceStrutHeight] == this[_forceStrutHeight] && dart.test(_engine.listEquals(T$.String(), other[_fontFamilyFallback], this[_fontFamilyFallback]));
    }
    get hashCode() {
      let fontFamilyFallback = this[_fontFamilyFallback];
      return core.Object.hash(this[_fontFamily], fontFamilyFallback != null ? core.Object.hashAll(fontFamilyFallback) : null, this[_fontSize], this[_height$0], this[_leading], this[_leadingDistribution], this[_fontWeight], this[_fontStyle], this[_forceStrutHeight]);
    }
  };
  (_engine.EngineStrutStyle.new = function(opts) {
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
    let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
    let height = opts && 'height' in opts ? opts.height : null;
    let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
    let leading = opts && 'leading' in opts ? opts.leading : null;
    let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
    let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
    let forceStrutHeight = opts && 'forceStrutHeight' in opts ? opts.forceStrutHeight : null;
    this[_fontFamily] = fontFamily;
    this[_fontFamilyFallback] = fontFamilyFallback;
    this[_fontSize] = fontSize;
    this[_height$0] = height === 0 ? null : height;
    this[_leadingDistribution] = leadingDistribution;
    this[_leading] = leading;
    this[_fontWeight] = fontWeight;
    this[_fontStyle] = fontStyle;
    this[_forceStrutHeight] = forceStrutHeight;
    ;
  }).prototype = _engine.EngineStrutStyle.prototype;
  dart.addRtiResources(_engine.EngineStrutStyle, ["_engine|EngineStrutStyle", "ui|StrutStyle"]);
  dart.setLibraryUri(_engine.EngineStrutStyle, I[220]);
  dart.setFieldSignature(_engine.EngineStrutStyle, () => dart.global.Object.setPrototypeOf({
    [_fontFamily]: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fontFamilyFallback]: {type: T$.ListNOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fontSize]: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_height$0]: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_leading]: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_fontWeight]: {type: T$10.FontWeightN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_fontStyle]: {type: T$10.FontStyleN(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_forceStrutHeight]: {type: T$.boolN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_leadingDistribution]: {type: T$10.TextLeadingDistributionN(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineStrutStyle))));
  dart.defineExtensionMethods(_engine.EngineStrutStyle, ['_equals']);
  dart.defineExtensionAccessors(_engine.EngineStrutStyle, ['hashCode']);
  var fontFamily$1 = dart.privateName(_engine, "TextHeightStyle.fontFamily");
  var fontSize$2 = dart.privateName(_engine, "TextHeightStyle.fontSize");
  var height$11 = dart.privateName(_engine, "TextHeightStyle.height");
  var fontFeatures$1 = dart.privateName(_engine, "TextHeightStyle.fontFeatures");
  var fontVariations$1 = dart.privateName(_engine, "TextHeightStyle.fontVariations");
  var __TextHeightStyle_hashCode = dart.privateName(_engine, "_#TextHeightStyle#hashCode");
  var __TextHeightStyle_hashCode_isSet = dart.privateName(_engine, "_#TextHeightStyle#hashCode#isSet");
  _engine.TextHeightStyle = class TextHeightStyle extends core.Object {
    get fontFamily() {
      return this[fontFamily$1];
    }
    set fontFamily(value) {
      super.fontFamily = value;
    }
    get fontSize() {
      return this[fontSize$2];
    }
    set fontSize(value) {
      super.fontSize = value;
    }
    get height() {
      return this[height$11];
    }
    set height(value) {
      super.height = value;
    }
    get fontFeatures() {
      return this[fontFeatures$1];
    }
    set fontFeatures(value) {
      super.fontFeatures = value;
    }
    get fontVariations() {
      return this[fontVariations$1];
    }
    set fontVariations(value) {
      super.fontVariations = value;
    }
    static ['_#new#tearOff'](opts) {
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      if (fontFamily == null) dart.nullFailed(I[372], 27, 19, "fontFamily");
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      if (fontSize == null) dart.nullFailed(I[372], 28, 19, "fontSize");
      let height = opts && 'height' in opts ? opts.height : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      return new _engine.TextHeightStyle.new({fontFamily: fontFamily, fontSize: fontSize, height: height, fontFeatures: fontFeatures, fontVariations: fontVariations});
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      return T$12.TextHeightStyle()[_is](other) && dart.hashCode(other) == dart.hashCode(this);
    }
    get hashCode() {
      let t$36688;
      if (!dart.test(this[__TextHeightStyle_hashCode_isSet])) {
        let t$36687 = core.Object.hash(this.fontFamily, this.fontSize, this.height, this.fontFeatures == null ? null : core.Object.hashAll(dart.nullCheck(this.fontFeatures)), this.fontVariations == null ? null : core.Object.hashAll(dart.nullCheck(this.fontVariations)));
        if (dart.test(this[__TextHeightStyle_hashCode_isSet])) dart.throw(new _internal.LateError.fieldADI("hashCode"));
        this[__TextHeightStyle_hashCode] = t$36687;
        this[__TextHeightStyle_hashCode_isSet] = true;
      }
      t$36688 = this[__TextHeightStyle_hashCode];
      return t$36688;
    }
  };
  (_engine.TextHeightStyle.new = function(opts) {
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    if (fontFamily == null) dart.nullFailed(I[372], 27, 19, "fontFamily");
    let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
    if (fontSize == null) dart.nullFailed(I[372], 28, 19, "fontSize");
    let height = opts && 'height' in opts ? opts.height : null;
    let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
    let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
    this[__TextHeightStyle_hashCode] = null;
    this[__TextHeightStyle_hashCode_isSet] = false;
    this[fontFamily$1] = fontFamily;
    this[fontSize$2] = fontSize;
    this[height$11] = height;
    this[fontFeatures$1] = fontFeatures;
    this[fontVariations$1] = fontVariations;
    ;
  }).prototype = _engine.TextHeightStyle.prototype;
  dart.addRtiResources(_engine.TextHeightStyle, ["_engine|TextHeightStyle"]);
  dart.setLibraryUri(_engine.TextHeightStyle, I[220]);
  dart.setFieldSignature(_engine.TextHeightStyle, () => dart.global.Object.setPrototypeOf({
    fontFamily: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontSize: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontFeatures: {type: T$10.ListNOfFontFeature(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontVariations: {type: T$10.ListNOfFontVariation(), isConst: false, isFinal: true, libraryUri: I[11]},
    [__TextHeightStyle_hashCode]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__TextHeightStyle_hashCode_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextHeightStyle))));
  dart.defineExtensionMethods(_engine.TextHeightStyle, ['_equals']);
  dart.defineExtensionAccessors(_engine.TextHeightStyle, ['hashCode']);
  var _cachedBoundingClientRect = dart.privateName(_engine, "_cachedBoundingClientRect");
  var _invalidateBoundsCache = dart.privateName(_engine, "_invalidateBoundsCache");
  var _readAndCacheMetrics = dart.privateName(_engine, "_readAndCacheMetrics");
  _engine.TextDimensions = class TextDimensions extends core.Object {
    static ['_#new#tearOff'](_element) {
      if (_element == null) dart.nullFailed(I[372], 71, 23, "_element");
      return new _engine.TextDimensions.new(_element);
    }
    [_invalidateBoundsCache]() {
      this[_cachedBoundingClientRect] = null;
    }
    updateTextToSpace() {
      this[_invalidateBoundsCache]();
      _engine['DomNodeExtension|set#text'](this[_element$], " ");
    }
    applyHeightStyle(textHeightStyle) {
      let t$36688, t$36688$;
      if (textHeightStyle == null) dart.nullFailed(I[372], 86, 41, "textHeightStyle");
      let fontFamily = textHeightStyle.fontFamily;
      let fontSize = textHeightStyle.fontSize;
      let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this[_element$], "style");
      t$36688 = style;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#fontSize'](t$36688, dart.strSafe(fontSize[$floor]()) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#fontFamily'](t$36688, dart.nullCheck(_engine.canonicalizeFontFamily(fontFamily)));
        return t$36688;
      })();
      let height = textHeightStyle.height;
      let effectiveLineHeight = (t$36688$ = height, t$36688$ == null ? fontFamily === "FlutterTest" ? 1.0 : null : t$36688$);
      if (effectiveLineHeight != null) {
        _engine['DomCSSStyleDeclarationExtension|set#lineHeight'](style, dart.toString(effectiveLineHeight));
      }
      this[_invalidateBoundsCache]();
    }
    appendToHost(hostElement) {
      if (hostElement == null) dart.nullFailed(I[372], 106, 36, "hostElement");
      hostElement.append(this[_element$]);
      this[_invalidateBoundsCache]();
    }
    [_readAndCacheMetrics]() {
      let t$36688;
      t$36688 = this[_cachedBoundingClientRect];
      return t$36688 == null ? this[_cachedBoundingClientRect] = T$12.DomRect()[_as](this[_element$].getBoundingClientRect()) : t$36688;
    }
    get height() {
      let cachedHeight = _engine['DomRectReadOnlyExtension|get#height'](this[_readAndCacheMetrics]());
      if (ui_web.browser.browserEngine == ui_web.BrowserEngine.firefox && !dart.test(ui_web.debugEmulateFlutterTesterEnvironment)) {
        cachedHeight = dart.notNull(cachedHeight) + 1.0;
      }
      return cachedHeight;
    }
  };
  (_engine.TextDimensions.new = function(_element) {
    if (_element == null) dart.nullFailed(I[372], 71, 23, "_element");
    this[_cachedBoundingClientRect] = null;
    this[_element$] = _element;
    ;
  }).prototype = _engine.TextDimensions.prototype;
  dart.addRtiResources(_engine.TextDimensions, ["_engine|TextDimensions"]);
  dart.setMethodSignature(_engine.TextDimensions, () => dart.global.Object.setPrototypeOf({
    [_invalidateBoundsCache]: T$.VoidTovoid(),
    updateTextToSpace: T$.VoidTovoid(),
    applyHeightStyle: T$12.TextHeightStyleTovoid(),
    appendToHost: T$9.DomHTMLElementTovoid(),
    [_readAndCacheMetrics]: T$12.VoidToDomRect()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextDimensions))));
  dart.setGetterSignature(_engine.TextDimensions, () => dart.global.Object.setPrototypeOf({height: T$.double()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.TextDimensions))));
  dart.setLibraryUri(_engine.TextDimensions, I[220]);
  dart.setFieldSignature(_engine.TextDimensions, () => dart.global.Object.setPrototypeOf({
    [_element$]: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_cachedBoundingClientRect]: {type: T$12.DomRectN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextDimensions))));
  var textHeightStyle$ = dart.privateName(_engine, "TextHeightRuler.textHeightStyle");
  var rulerHost$ = dart.privateName(_engine, "TextHeightRuler.rulerHost");
  var __TextHeightRuler__probe = dart.privateName(_engine, "_#TextHeightRuler#_probe");
  var __TextHeightRuler__probe_isSet = dart.privateName(_engine, "_#TextHeightRuler#_probe#isSet");
  var __TextHeightRuler__host = dart.privateName(_engine, "_#TextHeightRuler#_host");
  var __TextHeightRuler__host_isSet = dart.privateName(_engine, "_#TextHeightRuler#_host#isSet");
  var _dimensions = dart.privateName(_engine, "_dimensions");
  var __TextHeightRuler_alphabeticBaseline = dart.privateName(_engine, "_#TextHeightRuler#alphabeticBaseline");
  var __TextHeightRuler_alphabeticBaseline_isSet = dart.privateName(_engine, "_#TextHeightRuler#alphabeticBaseline#isSet");
  var __TextHeightRuler_height = dart.privateName(_engine, "_#TextHeightRuler#height");
  var __TextHeightRuler_height_isSet = dart.privateName(_engine, "_#TextHeightRuler#height#isSet");
  var _createProbe = dart.privateName(_engine, "_createProbe");
  var _probe = dart.privateName(_engine, "_probe");
  var _createHost = dart.privateName(_engine, "_createHost");
  var _host = dart.privateName(_engine, "_host");
  _engine.TextHeightRuler = class TextHeightRuler extends core.Object {
    get textHeightStyle() {
      return this[textHeightStyle$];
    }
    set textHeightStyle(value) {
      super.textHeightStyle = value;
    }
    get rulerHost() {
      return this[rulerHost$];
    }
    set rulerHost(value) {
      super.rulerHost = value;
    }
    static ['_#new#tearOff'](textHeightStyle, rulerHost) {
      if (textHeightStyle == null) dart.nullFailed(I[372], 138, 24, "textHeightStyle");
      if (rulerHost == null) dart.nullFailed(I[372], 138, 46, "rulerHost");
      return new _engine.TextHeightRuler.new(textHeightStyle, rulerHost);
    }
    get [_probe]() {
      let t$36689;
      if (!dart.test(this[__TextHeightRuler__probe_isSet])) {
        let t$36688 = this[_createProbe]();
        if (dart.test(this[__TextHeightRuler__probe_isSet])) dart.throw(new _internal.LateError.fieldADI("_probe"));
        this[__TextHeightRuler__probe] = t$36688;
        this[__TextHeightRuler__probe_isSet] = true;
      }
      t$36689 = this[__TextHeightRuler__probe];
      return t$36689;
    }
    get [_host]() {
      let t$36690;
      if (!dart.test(this[__TextHeightRuler__host_isSet])) {
        let t$36689 = this[_createHost]();
        if (dart.test(this[__TextHeightRuler__host_isSet])) dart.throw(new _internal.LateError.fieldADI("_host"));
        this[__TextHeightRuler__host] = t$36689;
        this[__TextHeightRuler__host_isSet] = true;
      }
      t$36690 = this[__TextHeightRuler__host];
      return t$36690;
    }
    get alphabeticBaseline() {
      let t$36691;
      if (!dart.test(this[__TextHeightRuler_alphabeticBaseline_isSet])) {
        let t$36690 = _engine['DomRectReadOnlyExtension|get#bottom'](T$12.DomRect()[_as](this[_probe].getBoundingClientRect()));
        if (dart.test(this[__TextHeightRuler_alphabeticBaseline_isSet])) dart.throw(new _internal.LateError.fieldADI("alphabeticBaseline"));
        this[__TextHeightRuler_alphabeticBaseline] = t$36690;
        this[__TextHeightRuler_alphabeticBaseline_isSet] = true;
      }
      t$36691 = this[__TextHeightRuler_alphabeticBaseline];
      return t$36691;
    }
    get height() {
      let t$36692;
      if (!dart.test(this[__TextHeightRuler_height_isSet])) {
        let t$36691 = this[_dimensions].height;
        if (dart.test(this[__TextHeightRuler_height_isSet])) dart.throw(new _internal.LateError.fieldADI("height"));
        this[__TextHeightRuler_height] = t$36691;
        this[__TextHeightRuler_height_isSet] = true;
      }
      t$36692 = this[__TextHeightRuler_height];
      return t$36692;
    }
    dispose() {
      this[_host].remove();
    }
    [_createHost]() {
      let t$36692;
      let host = _engine.createDomHTMLDivElement();
      t$36692 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), host, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#visibility'](t$36692, "hidden");
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36692, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36692, "0");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36692, "0");
        _engine['DomCSSStyleDeclarationExtension|set#display'](t$36692, "flex");
        _engine['DomCSSStyleDeclarationExtension|set#flexDirection'](t$36692, "row");
        _engine['DomCSSStyleDeclarationExtension|set#alignItems'](t$36692, "baseline");
        _engine['DomCSSStyleDeclarationExtension|set#margin'](t$36692, "0");
        _engine['DomCSSStyleDeclarationExtension|set#border'](t$36692, "0");
        _engine['DomCSSStyleDeclarationExtension|set#padding'](t$36692, "0");
        return t$36692;
      })();
      if (!dart.test(dart.fn(() => {
        _engine['DomElementExtension|setAttribute'](host, "data-ruler", "line-height");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[372], 173, 12, "() {\n      host.setAttribute('data-ruler', 'line-height');\n      return true;\n    }()");
      this[_dimensions].applyHeightStyle(this.textHeightStyle);
      _engine['DomCSSStyleDeclarationExtension|set#whiteSpace'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this[_dimensions][_element$], "style"), "pre");
      this[_dimensions].updateTextToSpace();
      this[_dimensions].appendToHost(host);
      this.rulerHost.addElement(host);
      return host;
    }
    [_createProbe]() {
      let probe = _engine.createDomHTMLDivElement();
      this[_host].append(probe);
      return probe;
    }
  };
  (_engine.TextHeightRuler.new = function(textHeightStyle, rulerHost) {
    if (textHeightStyle == null) dart.nullFailed(I[372], 138, 24, "textHeightStyle");
    if (rulerHost == null) dart.nullFailed(I[372], 138, 46, "rulerHost");
    this[__TextHeightRuler__probe] = null;
    this[__TextHeightRuler__probe_isSet] = false;
    this[__TextHeightRuler__host] = null;
    this[__TextHeightRuler__host_isSet] = false;
    this[_dimensions] = new _engine.TextDimensions.new(_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-paragraph"));
    this[__TextHeightRuler_alphabeticBaseline] = null;
    this[__TextHeightRuler_alphabeticBaseline_isSet] = false;
    this[__TextHeightRuler_height] = null;
    this[__TextHeightRuler_height_isSet] = false;
    this[textHeightStyle$] = textHeightStyle;
    this[rulerHost$] = rulerHost;
    ;
  }).prototype = _engine.TextHeightRuler.prototype;
  dart.addRtiResources(_engine.TextHeightRuler, ["_engine|TextHeightRuler"]);
  dart.setMethodSignature(_engine.TextHeightRuler, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    [_createHost]: T$12.VoidToDomHTMLElement(),
    [_createProbe]: T$12.VoidToDomHTMLElement()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextHeightRuler))));
  dart.setGetterSignature(_engine.TextHeightRuler, () => dart.global.Object.setPrototypeOf({
    [_probe]: T$10.DomHTMLElement(),
    [_host]: T$10.DomHTMLElement(),
    alphabeticBaseline: T$.double(),
    height: T$.double()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.TextHeightRuler))));
  dart.setLibraryUri(_engine.TextHeightRuler, I[220]);
  dart.setFieldSignature(_engine.TextHeightRuler, () => dart.global.Object.setPrototypeOf({
    textHeightStyle: {type: T$12.TextHeightStyle(), isConst: false, isFinal: true, libraryUri: I[220]},
    rulerHost: {type: T$12.RulerHost(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__TextHeightRuler__probe]: {type: T$9.DomHTMLElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__TextHeightRuler__probe_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__TextHeightRuler__host]: {type: T$9.DomHTMLElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__TextHeightRuler__host_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_dimensions]: {type: T$12.TextDimensions(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__TextHeightRuler_alphabeticBaseline]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__TextHeightRuler_alphabeticBaseline_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__TextHeightRuler_height]: {type: T$9.doubleN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__TextHeightRuler_height_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextHeightRuler))));
  _engine.FragmentFlow = class FragmentFlow extends core._Enum {
    [_enumToString]() {
      return "FragmentFlow." + dart.str(this[_name$]);
    }
  };
  (_engine.FragmentFlow.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[373], 8, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[373], 8, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.FragmentFlow).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.FragmentFlow.prototype;
  dart.addRtiResources(_engine.FragmentFlow, ["_engine|FragmentFlow"]);
  dart.setMethodSignature(_engine.FragmentFlow, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FragmentFlow))));
  dart.setLibraryUri(_engine.FragmentFlow, I[220]);
  dart.setStaticFieldSignature(_engine.FragmentFlow, () => ['values', 'ltr', 'rtl', 'previous', 'sandwich']);
  dart.defineLazy(_engine.FragmentFlow, {
    /*_engine.FragmentFlow.values*/get values() {
      return C[1002] || CT.C1002;
    },
    /*_engine.FragmentFlow.ltr*/get ltr() {
      return C[1003] || CT.C1003;
    },
    /*_engine.FragmentFlow.rtl*/get rtl() {
      return C[1004] || CT.C1004;
    },
    /*_engine.FragmentFlow.previous*/get previous() {
      return C[1005] || CT.C1005;
    },
    /*_engine.FragmentFlow.sandwich*/get sandwich() {
      return C[1006] || CT.C1006;
    }
  }, false);
  _engine.BidiFragmenter = class BidiFragmenter extends _engine.TextFragmenter {
    static ['_#new#tearOff'](text) {
      if (text == null) dart.nullFailed(I[373], 30, 30, "text");
      return new _engine.BidiFragmenter.new(text);
    }
    fragment() {
      return _engine._computeBidiFragments(this.text);
    }
  };
  (_engine.BidiFragmenter.new = function(text) {
    if (text == null) dart.nullFailed(I[373], 30, 30, "text");
    dart.global.Object.getPrototypeOf(_engine.BidiFragmenter).new.call(this, text);
    ;
  }).prototype = _engine.BidiFragmenter.prototype;
  dart.addRtiResources(_engine.BidiFragmenter, ["_engine|BidiFragmenter"]);
  dart.setMethodSignature(_engine.BidiFragmenter, () => dart.global.Object.setPrototypeOf({fragment: T$12.VoidToListOfBidiFragment()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BidiFragmenter))));
  dart.setLibraryUri(_engine.BidiFragmenter, I[220]);
  var textDirection$2 = dart.privateName(_engine, "BidiFragment.textDirection");
  var fragmentFlow$0 = dart.privateName(_engine, "BidiFragment.fragmentFlow");
  _engine.BidiFragment = class BidiFragment extends _engine.TextFragment {
    get textDirection() {
      return this[textDirection$2];
    }
    set textDirection(value) {
      super.textDirection = value;
    }
    get fragmentFlow() {
      return this[fragmentFlow$0];
    }
    set fragmentFlow(value) {
      super.fragmentFlow = value;
    }
    static ['_#new#tearOff'](start, end, textDirection, fragmentFlow) {
      if (start == null) dart.nullFailed(I[373], 39, 28, "start");
      if (end == null) dart.nullFailed(I[373], 39, 41, "end");
      if (fragmentFlow == null) dart.nullFailed(I[373], 39, 71, "fragmentFlow");
      return new _engine.BidiFragment.new(start, end, textDirection, fragmentFlow);
    }
    get hashCode() {
      return core.Object.hash(this.start, this.end, this.textDirection, this.fragmentFlow);
    }
    _equals(other) {
      if (other == null) return false;
      return T$12.BidiFragment()[_is](other) && other.start == this.start && other.end == this.end && other.textDirection == this.textDirection && other.fragmentFlow == this.fragmentFlow;
    }
    toString() {
      return "BidiFragment(" + dart.str(this.start) + ", " + dart.str(this.end) + ", " + dart.str(this.textDirection) + ")";
    }
  };
  (_engine.BidiFragment.new = function(start, end, textDirection, fragmentFlow) {
    if (start == null) dart.nullFailed(I[373], 39, 28, "start");
    if (end == null) dart.nullFailed(I[373], 39, 41, "end");
    if (fragmentFlow == null) dart.nullFailed(I[373], 39, 71, "fragmentFlow");
    this[textDirection$2] = textDirection;
    this[fragmentFlow$0] = fragmentFlow;
    dart.global.Object.getPrototypeOf(_engine.BidiFragment).new.call(this, start, end);
    ;
  }).prototype = _engine.BidiFragment.prototype;
  dart.addRtiResources(_engine.BidiFragment, ["_engine|BidiFragment"]);
  dart.setLibraryUri(_engine.BidiFragment, I[220]);
  dart.setFieldSignature(_engine.BidiFragment, () => dart.global.Object.setPrototypeOf({
    textDirection: {type: T$10.TextDirectionN(), isConst: false, isFinal: true, libraryUri: I[198]},
    fragmentFlow: {type: T$12.FragmentFlow(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.BidiFragment))));
  dart.defineExtensionMethods(_engine.BidiFragment, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.BidiFragment, ['hashCode']);
  _engine._ComparisonResult = class _ComparisonResult extends core._Enum {
    [_enumToString]() {
      return "_ComparisonResult." + dart.str(this[_name$]);
    }
  };
  (_engine._ComparisonResult.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[374], 16, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[374], 16, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine._ComparisonResult).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine._ComparisonResult.prototype;
  dart.addRtiResources(_engine._ComparisonResult, ["_engine|_ComparisonResult"]);
  dart.setMethodSignature(_engine._ComparisonResult, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._ComparisonResult))));
  dart.setLibraryUri(_engine._ComparisonResult, I[220]);
  dart.setStaticFieldSignature(_engine._ComparisonResult, () => ['values', 'inside', 'higher', 'lower']);
  dart.defineLazy(_engine._ComparisonResult, {
    /*_engine._ComparisonResult.values*/get values() {
      return C[1007] || CT.C1007;
    },
    /*_engine._ComparisonResult.inside*/get inside() {
      return C[1008] || CT.C1008;
    },
    /*_engine._ComparisonResult.higher*/get higher() {
      return C[1009] || CT.C1009;
    },
    /*_engine._ComparisonResult.lower*/get lower() {
      return C[1010] || CT.C1010;
    }
  }, false);
  var start$5 = dart.privateName(_engine, "UnicodeRange.start");
  var end$4 = dart.privateName(_engine, "UnicodeRange.end");
  var property$ = dart.privateName(_engine, "UnicodeRange.property");
  _engine.UnicodeRange$ = dart.generic(P => {
    var __t$UnicodeRangeOfP = () => (__t$UnicodeRangeOfP = dart.constFn(P[_eval]("_engine|UnicodeRange<0>")))();
    class UnicodeRange extends core.Object {
      get start() {
        return this[start$5];
      }
      set start(value) {
        super.start = value;
      }
      get end() {
        return this[end$4];
      }
      set end(value) {
        super.end = value;
      }
      get property() {
        return this[property$];
      }
      set property(value) {
        super.property = value;
      }
      static ['_#new#tearOff'](P, start, end, property) {
        if (start == null) dart.nullFailed(I[374], 35, 27, "start");
        if (end == null) dart.nullFailed(I[374], 35, 39, "end");
        return new (_engine.UnicodeRange$(P)).new(start, end, property);
      }
      compare(value) {
        if (value == null) dart.nullFailed(I[374], 49, 33, "value");
        if (dart.notNull(value) < dart.notNull(this.start)) {
          return _engine._ComparisonResult.lower;
        }
        if (dart.notNull(value) > dart.notNull(this.end)) {
          return _engine._ComparisonResult.higher;
        }
        return _engine._ComparisonResult.inside;
      }
    }
    (UnicodeRange.new = function(start, end, property) {
      if (start == null) dart.nullFailed(I[374], 35, 27, "start");
      if (end == null) dart.nullFailed(I[374], 35, 39, "end");
      this[start$5] = start;
      this[end$4] = end;
      this[property$] = property;
      this.$ti = this.$ti || __t$UnicodeRangeOfP();
      ;
    }).prototype = UnicodeRange.prototype;
    dart.addRtiResources(UnicodeRange, ["_engine|UnicodeRange"]);
    dart.setMethodSignature(UnicodeRange, () => dart.global.Object.setPrototypeOf({compare: T$12.intTo_ComparisonResult()}, dart.getMethods(dart.global.Object.getPrototypeOf(UnicodeRange))));
    dart.setLibraryUri(UnicodeRange, I[220]);
    dart.setFieldSignature(UnicodeRange, () => dart.global.Object.setPrototypeOf({
      start: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      end: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      property: {type: P, isConst: false, isFinal: true}
    }, dart.getFields(dart.global.Object.getPrototypeOf(UnicodeRange))));
    return UnicodeRange;
  });
  _engine.UnicodeRange = _engine.UnicodeRange$();
  var ranges$ = dart.privateName(_engine, "UnicodePropertyLookup.ranges");
  var defaultProperty$ = dart.privateName(_engine, "UnicodePropertyLookup.defaultProperty");
  var _binarySearch = dart.privateName(_engine, "_binarySearch");
  _engine.UnicodePropertyLookup$ = dart.generic(P => {
    var __t$UnicodePropertyLookupOfP = () => (__t$UnicodePropertyLookupOfP = dart.constFn(P[_eval]("_engine|UnicodePropertyLookup<0>")))();
    var __t$StringAndintToP = () => (__t$StringAndintToP = dart.constFn(P[_eval]("0(core|String,core|int)")))();
    var __t$intNToP = () => (__t$intNToP = dart.constFn(P[_eval]("0(core|int?)")))();
    var __t$ListOfUnicodeRangeOfP = () => (__t$ListOfUnicodeRangeOfP = dart.constFn(P[_eval]("core|List<_engine|UnicodeRange<0>>")))();
    var __t$MapOfint$P = () => (__t$MapOfint$P = dart.constFn(P[_eval]("core|Map<core|int,0>")))();
    var __t$IdentityMapOfint$P = () => (__t$IdentityMapOfint$P = dart.constFn(_js_helper.IdentityMap$(T$.int(), P)))();
    class UnicodePropertyLookup extends core.Object {
      get ranges() {
        return this[ranges$];
      }
      set ranges(value) {
        super.ranges = value;
      }
      get defaultProperty() {
        return this[defaultProperty$];
      }
      set defaultProperty(value) {
        super.defaultProperty = value;
      }
      static ['_#new#tearOff'](P, ranges, defaultProperty) {
        if (ranges == null) dart.nullFailed(I[374], 110, 30, "ranges");
        return new (_engine.UnicodePropertyLookup$(P)).new(ranges, defaultProperty);
      }
      static fromPackedData(packedData, singleRangesCount, propertyEnumValues, defaultProperty) {
        if (packedData == null) dart.nullFailed(I[374], 114, 12, "packedData");
        if (singleRangesCount == null) dart.nullFailed(I[374], 115, 9, "singleRangesCount");
        if (propertyEnumValues == null) dart.nullFailed(I[374], 116, 13, "propertyEnumValues");
        return new (_engine.UnicodePropertyLookup$(P)).new(_engine._unpackProperties(P, packedData, singleRangesCount, propertyEnumValues), defaultProperty);
      }
      static ['_#fromPackedData#tearOff'](P, packedData, singleRangesCount, propertyEnumValues, defaultProperty) {
        if (packedData == null) dart.nullFailed(I[374], 114, 12, "packedData");
        if (singleRangesCount == null) dart.nullFailed(I[374], 115, 9, "singleRangesCount");
        if (propertyEnumValues == null) dart.nullFailed(I[374], 116, 13, "propertyEnumValues");
        return _engine.UnicodePropertyLookup$(P).fromPackedData(packedData, singleRangesCount, propertyEnumValues, defaultProperty);
      }
      find(text, index) {
        if (text == null) dart.nullFailed(I[374], 139, 17, "text");
        if (index == null) dart.nullFailed(I[374], 139, 27, "index");
        let codePoint = _engine.getCodePoint(text, index);
        return codePoint == null ? this.defaultProperty : this.findForChar(codePoint);
      }
      findForChar(char) {
        if (char == null) {
          return this.defaultProperty;
        }
        let cacheHit = this[_cache][$_get](char);
        if (cacheHit != null) {
          return cacheHit;
        }
        let rangeIndex = this[_binarySearch](char);
        let result = rangeIndex === -1 ? this.defaultProperty : this.ranges[$_get](rangeIndex).property;
        this[_cache][$_set](char, result);
        return result;
      }
      [_binarySearch](value) {
        if (value == null) dart.nullFailed(I[374], 165, 25, "value");
        let min = 0;
        let max = this.ranges[$length];
        while (min < dart.notNull(max)) {
          let mid = min + (dart.notNull(max) - min)[$rightShift](1);
          let range = this.ranges[$_get](mid);
          switch (range.compare(value)) {
            case C[1009] || CT.C1009:
              {
                min = mid + 1;
                break;
              }
            case C[1010] || CT.C1010:
              {
                max = mid;
                break;
              }
            case C[1008] || CT.C1008:
              {
                return mid;
              }
            default:
              dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
          }
        }
        return -1;
      }
    }
    (UnicodePropertyLookup.new = function(ranges, defaultProperty) {
      if (ranges == null) dart.nullFailed(I[374], 110, 30, "ranges");
      this[_cache] = new (__t$IdentityMapOfint$P()).new();
      this[ranges$] = ranges;
      this[defaultProperty$] = defaultProperty;
      this.$ti = this.$ti || __t$UnicodePropertyLookupOfP();
      ;
    }).prototype = UnicodePropertyLookup.prototype;
    dart.addRtiResources(UnicodePropertyLookup, ["_engine|UnicodePropertyLookup"]);
    dart.setMethodSignature(UnicodePropertyLookup, () => dart.global.Object.setPrototypeOf({
      find: __t$StringAndintToP(),
      findForChar: __t$intNToP(),
      [_binarySearch]: T$.intToint()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(UnicodePropertyLookup))));
    dart.setStaticMethodSignature(UnicodePropertyLookup, () => ['fromPackedData']);
    dart.setLibraryUri(UnicodePropertyLookup, I[220]);
    dart.setFieldSignature(UnicodePropertyLookup, () => dart.global.Object.setPrototypeOf({
      ranges: {type: __t$ListOfUnicodeRangeOfP(), isConst: false, isFinal: true, libraryUri: I[11]},
      defaultProperty: {type: P, isConst: false, isFinal: true},
      [_cache]: {type: __t$MapOfint$P(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(UnicodePropertyLookup))));
    return UnicodePropertyLookup;
  });
  _engine.UnicodePropertyLookup = _engine.UnicodePropertyLookup$();
  _engine._FindBreakDirection = class _FindBreakDirection extends core._Enum {
    [_enumToString]() {
      return "_FindBreakDirection." + dart.str(this[_name$]);
    }
    static ['_#new#tearOff'](t$36$35index, t$36$35name, opts) {
      if (t$36$35index == null) dart.nullFailed(I[375], 7, 6, "#index");
      if (t$36$35name == null) dart.nullFailed(I[375], 7, 6, "#name");
      let step = opts && 'step' in opts ? opts.step : null;
      if (step == null) dart.nullFailed(I[375], 11, 44, "step");
      return new _engine._FindBreakDirection.new(t$36$35index, t$36$35name, {step: step});
    }
  };
  (_engine._FindBreakDirection.new = function(t$36$35index, t$36$35name, opts) {
    if (t$36$35index == null) dart.nullFailed(I[375], 7, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[375], 7, 6, "#name");
    let step = opts && 'step' in opts ? opts.step : null;
    if (step == null) dart.nullFailed(I[375], 11, 44, "step");
    this.step = step;
    dart.global.Object.getPrototypeOf(_engine._FindBreakDirection).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine._FindBreakDirection.prototype;
  dart.addRtiResources(_engine._FindBreakDirection, ["_engine|_FindBreakDirection"]);
  dart.setMethodSignature(_engine._FindBreakDirection, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine._FindBreakDirection))));
  dart.setLibraryUri(_engine._FindBreakDirection, I[220]);
  dart.setFieldSignature(_engine._FindBreakDirection, () => dart.global.Object.setPrototypeOf({step: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine._FindBreakDirection))));
  dart.setStaticFieldSignature(_engine._FindBreakDirection, () => ['values', 'forward', 'backward']);
  dart.defineLazy(_engine._FindBreakDirection, {
    /*_engine._FindBreakDirection.values*/get values() {
      return C[1011] || CT.C1011;
    },
    /*_engine._FindBreakDirection.forward*/get forward() {
      return C[1012] || CT.C1012;
    },
    /*_engine._FindBreakDirection.backward*/get backward() {
      return C[1013] || CT.C1013;
    }
  }, false);
  _engine.WordBreaker = class WordBreaker extends core.Object {
    static nextBreakIndex(text, index) {
      if (text == null) dart.nullFailed(I[375], 19, 36, "text");
      if (index == null) dart.nullFailed(I[375], 19, 46, "index");
      return _engine.WordBreaker._findBreakIndex(_engine._FindBreakDirection.forward, text, index);
    }
    static prevBreakIndex(text, index) {
      if (text == null) dart.nullFailed(I[375], 24, 36, "text");
      if (index == null) dart.nullFailed(I[375], 24, 46, "index");
      return _engine.WordBreaker._findBreakIndex(_engine._FindBreakDirection.backward, text, index);
    }
    static _findBreakIndex(direction, text, index) {
      if (direction == null) dart.nullFailed(I[375], 28, 25, "direction");
      if (text == null) dart.nullFailed(I[375], 29, 12, "text");
      if (index == null) dart.nullFailed(I[375], 30, 9, "index");
      let i = index;
      while (dart.notNull(i) >= 0 && dart.notNull(i) <= text.length) {
        i = dart.notNull(i) + dart.notNull(direction.step);
        if (dart.test(_engine.WordBreaker._isBreak(text, i))) {
          break;
        }
      }
      return _engine.clampInt(i, 0, text.length);
    }
    static _isBreak(text, index) {
      if (index == null) dart.nullFailed(I[375], 44, 42, "index");
      if (dart.notNull(index) <= 0 || dart.notNull(index) >= dart.nullCheck(text).length) {
        return true;
      }
      if (dart.test(_engine.WordBreaker._isUtf16Surrogate(text[$codeUnitAt](dart.notNull(index) - 1)))) {
        return false;
      }
      let immediateRight = _engine.wordLookup.find(text, index);
      let immediateLeft = _engine.wordLookup.find(text, dart.notNull(index) - 1);
      if (immediateLeft == _web_unicode.WordCharProperty.CR && immediateRight == _web_unicode.WordCharProperty.LF) {
        return false;
      }
      if (dart.test(_engine.WordBreaker._oneOf(immediateLeft, _web_unicode.WordCharProperty.Newline, _web_unicode.WordCharProperty.CR, _web_unicode.WordCharProperty.LF))) {
        return true;
      }
      if (dart.test(_engine.WordBreaker._oneOf(immediateRight, _web_unicode.WordCharProperty.Newline, _web_unicode.WordCharProperty.CR, _web_unicode.WordCharProperty.LF))) {
        return true;
      }
      if (immediateLeft == _web_unicode.WordCharProperty.WSegSpace && immediateRight == _web_unicode.WordCharProperty.WSegSpace) {
        return false;
      }
      if (dart.test(_engine.WordBreaker._oneOf(immediateRight, _web_unicode.WordCharProperty.Extend, _web_unicode.WordCharProperty.Format, _web_unicode.WordCharProperty.ZWJ))) {
        return false;
      }
      let l = 0;
      while (dart.test(_engine.WordBreaker._oneOf(immediateLeft, _web_unicode.WordCharProperty.Extend, _web_unicode.WordCharProperty.Format, _web_unicode.WordCharProperty.ZWJ))) {
        l = l + 1;
        if (dart.notNull(index) - l - 1 < 0) {
          return true;
        }
        immediateLeft = _engine.wordLookup.find(text, dart.notNull(index) - l - 1);
      }
      if (dart.test(_engine.WordBreaker._isAHLetter(immediateLeft)) && dart.test(_engine.WordBreaker._isAHLetter(immediateRight))) {
        return false;
      }
      let r = 0;
      let nextRight = null;
      do {
        r = r + 1;
        nextRight = _engine.wordLookup.find(text, dart.notNull(index) + r);
      } while (dart.test(_engine.WordBreaker._oneOf(nextRight, _web_unicode.WordCharProperty.Extend, _web_unicode.WordCharProperty.Format, _web_unicode.WordCharProperty.ZWJ)));
      let nextLeft = null;
      do {
        l = l + 1;
        nextLeft = _engine.wordLookup.find(text, dart.notNull(index) - l - 1);
      } while (dart.test(_engine.WordBreaker._oneOf(nextLeft, _web_unicode.WordCharProperty.Extend, _web_unicode.WordCharProperty.Format, _web_unicode.WordCharProperty.ZWJ)));
      if (dart.test(_engine.WordBreaker._isAHLetter(immediateLeft)) && dart.test(_engine.WordBreaker._oneOf(immediateRight, _web_unicode.WordCharProperty.MidLetter, _web_unicode.WordCharProperty.MidNumLet, _web_unicode.WordCharProperty.SingleQuote)) && dart.test(_engine.WordBreaker._isAHLetter(nextRight))) {
        return false;
      }
      if (dart.test(_engine.WordBreaker._isAHLetter(nextLeft)) && dart.test(_engine.WordBreaker._oneOf(immediateLeft, _web_unicode.WordCharProperty.MidLetter, _web_unicode.WordCharProperty.MidNumLet, _web_unicode.WordCharProperty.SingleQuote)) && dart.test(_engine.WordBreaker._isAHLetter(immediateRight))) {
        return false;
      }
      if (immediateLeft == _web_unicode.WordCharProperty.HebrewLetter && immediateRight == _web_unicode.WordCharProperty.SingleQuote) {
        return false;
      }
      if (immediateLeft == _web_unicode.WordCharProperty.HebrewLetter && immediateRight == _web_unicode.WordCharProperty.DoubleQuote && nextRight == _web_unicode.WordCharProperty.HebrewLetter) {
        return false;
      }
      if (nextLeft == _web_unicode.WordCharProperty.HebrewLetter && immediateLeft == _web_unicode.WordCharProperty.DoubleQuote && immediateRight == _web_unicode.WordCharProperty.HebrewLetter) {
        return false;
      }
      if (immediateLeft == _web_unicode.WordCharProperty.Numeric && immediateRight == _web_unicode.WordCharProperty.Numeric) {
        return false;
      }
      if (dart.test(_engine.WordBreaker._isAHLetter(immediateLeft)) && immediateRight == _web_unicode.WordCharProperty.Numeric) {
        return false;
      }
      if (immediateLeft == _web_unicode.WordCharProperty.Numeric && dart.test(_engine.WordBreaker._isAHLetter(immediateRight))) {
        return false;
      }
      if (nextLeft == _web_unicode.WordCharProperty.Numeric && dart.test(_engine.WordBreaker._oneOf(immediateLeft, _web_unicode.WordCharProperty.MidNum, _web_unicode.WordCharProperty.MidNumLet, _web_unicode.WordCharProperty.SingleQuote)) && immediateRight == _web_unicode.WordCharProperty.Numeric) {
        return false;
      }
      if (immediateLeft == _web_unicode.WordCharProperty.Numeric && dart.test(_engine.WordBreaker._oneOf(immediateRight, _web_unicode.WordCharProperty.MidNum, _web_unicode.WordCharProperty.MidNumLet, _web_unicode.WordCharProperty.SingleQuote)) && nextRight == _web_unicode.WordCharProperty.Numeric) {
        return false;
      }
      if (immediateLeft == _web_unicode.WordCharProperty.Katakana && immediateRight == _web_unicode.WordCharProperty.Katakana) {
        return false;
      }
      if (dart.test(_engine.WordBreaker._oneOf(immediateLeft, _web_unicode.WordCharProperty.ALetter, _web_unicode.WordCharProperty.HebrewLetter, _web_unicode.WordCharProperty.Numeric, _web_unicode.WordCharProperty.Katakana, _web_unicode.WordCharProperty.ExtendNumLet)) && immediateRight == _web_unicode.WordCharProperty.ExtendNumLet) {
        return false;
      }
      if (immediateLeft == _web_unicode.WordCharProperty.ExtendNumLet && dart.test(_engine.WordBreaker._oneOf(immediateRight, _web_unicode.WordCharProperty.ALetter, _web_unicode.WordCharProperty.HebrewLetter, _web_unicode.WordCharProperty.Numeric, _web_unicode.WordCharProperty.Katakana))) {
        return false;
      }
      return true;
    }
    static _isUtf16Surrogate(value) {
      if (value == null) dart.nullFailed(I[375], 296, 37, "value");
      return (dart.notNull(value) & 63488) === 55296;
    }
    static _oneOf(value, choice1, choice2, choice3 = null, choice4 = null, choice5 = null) {
      if (choice1 == null) dart.nullFailed(I[375], 302, 22, "choice1");
      if (choice2 == null) dart.nullFailed(I[375], 303, 22, "choice2");
      if (value == choice1) {
        return true;
      }
      if (value == choice2) {
        return true;
      }
      if (choice3 != null && value == choice3) {
        return true;
      }
      if (choice4 != null && value == choice4) {
        return true;
      }
      if (choice5 != null && value == choice5) {
        return true;
      }
      return false;
    }
    static _isAHLetter(property) {
      return _engine.WordBreaker._oneOf(property, _web_unicode.WordCharProperty.ALetter, _web_unicode.WordCharProperty.HebrewLetter);
    }
  };
  (_engine.WordBreaker.new = function() {
    ;
  }).prototype = _engine.WordBreaker.prototype;
  dart.addRtiResources(_engine.WordBreaker, ["_engine|WordBreaker"]);
  dart.setStaticMethodSignature(_engine.WordBreaker, () => ['nextBreakIndex', 'prevBreakIndex', '_findBreakIndex', '_isBreak', '_isUtf16Surrogate', '_oneOf', '_isAHLetter']);
  dart.setLibraryUri(_engine.WordBreaker, I[220]);
  var _flutterToEngineMap = dart.privateName(_engine, "_flutterToEngineMap");
  _engine.BrowserAutofillHints = class BrowserAutofillHints extends core.Object {
    static ['_#_#tearOff']() {
      return new _engine.BrowserAutofillHints.__();
    }
    static get instance() {
      return _engine.BrowserAutofillHints._singletonInstance;
    }
    flutterToEngine(flutterAutofillHint) {
      let t$36700;
      if (flutterAutofillHint == null) dart.nullFailed(I[376], 81, 33, "flutterAutofillHint");
      t$36700 = this[_flutterToEngineMap][$_get](flutterAutofillHint);
      return t$36700 == null ? flutterAutofillHint : t$36700;
    }
  };
  (_engine.BrowserAutofillHints.__ = function() {
    this[_flutterToEngineMap] = new (G.IdentityMapOfString$String()).from(["birthday", "bday", "birthdayDay", "bday-day", "birthdayMonth", "bday-month", "birthdayYear", "bday-year", "countryCode", "country", "countryName", "country-name", "creditCardExpirationDate", "cc-exp", "creditCardExpirationMonth", "cc-exp-month", "creditCardExpirationYear", "cc-exp-year", "creditCardFamilyName", "cc-family-name", "creditCardGivenName", "cc-given-name", "creditCardMiddleName", "cc-additional-name", "creditCardName", "cc-name", "creditCardNumber", "cc-number", "creditCardSecurityCode", "cc-csc", "creditCardType", "cc-type", "email", "email", "familyName", "family-name", "fullStreetAddress", "street-address", "gender", "sex", "givenName", "given-name", "impp", "impp", "jobTitle", "organization-title", "language", "language", "middleName", "additional-name", "name", "name", "namePrefix", "honorific-prefix", "nameSuffix", "honorific-suffix", "newPassword", "new-password", "nickname", "nickname", "oneTimeCode", "one-time-code", "organizationName", "organization", "password", "current-password", "photo", "photo", "postalCode", "postal-code", "streetAddressLevel1", "address-level1", "streetAddressLevel2", "address-level2", "streetAddressLevel3", "address-level3", "streetAddressLevel4", "address-level4", "streetAddressLine1", "address-line1", "streetAddressLine2", "address-line2", "streetAddressLine3", "address-line3", "telephoneNumber", "tel", "telephoneNumberAreaCode", "tel-area-code", "telephoneNumberCountryCode", "tel-country-code", "telephoneNumberExtension", "tel-extension", "telephoneNumberLocal", "tel-local", "telephoneNumberLocalPrefix", "tel-local-prefix", "telephoneNumberLocalSuffix", "tel-local-suffix", "telephoneNumberNational", "tel-national", "transactionAmount", "transaction-amount", "transactionCurrency", "transaction-currency", "url", "url", "username", "username"]);
    ;
  }).prototype = _engine.BrowserAutofillHints.prototype;
  dart.addRtiResources(_engine.BrowserAutofillHints, ["_engine|BrowserAutofillHints"]);
  dart.setMethodSignature(_engine.BrowserAutofillHints, () => dart.global.Object.setPrototypeOf({flutterToEngine: T$.StringToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BrowserAutofillHints))));
  dart.setStaticGetterSignature(_engine.BrowserAutofillHints, () => ['instance']);
  dart.setLibraryUri(_engine.BrowserAutofillHints, I[220]);
  dart.setFieldSignature(_engine.BrowserAutofillHints, () => dart.global.Object.setPrototypeOf({[_flutterToEngineMap]: {type: T$2.MapOfString$String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.BrowserAutofillHints))));
  dart.setStaticFieldSignature(_engine.BrowserAutofillHints, () => ['_singletonInstance']);
  dart.defineLazy(_engine.BrowserAutofillHints, {
    /*_engine.BrowserAutofillHints._singletonInstance*/get _singletonInstance() {
      return new _engine.BrowserAutofillHints.__();
    }
  }, false);
  _engine.EngineInputAction = class EngineInputAction extends core.Object {
    static fromName(name) {
      if (name == null) dart.nullFailed(I[377], 16, 44, "name");
      switch (name) {
        case "TextInputAction.continueAction":
        case "TextInputAction.next":
          {
            return _engine.EngineInputAction.next;
          }
        case "TextInputAction.previous":
          {
            return _engine.EngineInputAction.previous;
          }
        case "TextInputAction.done":
          {
            return _engine.EngineInputAction.done;
          }
        case "TextInputAction.go":
          {
            return _engine.EngineInputAction.go;
          }
        case "TextInputAction.newline":
          {
            return _engine.EngineInputAction.enter;
          }
        case "TextInputAction.search":
          {
            return _engine.EngineInputAction.search;
          }
        case "TextInputAction.send":
          {
            return _engine.EngineInputAction.send;
          }
        case "TextInputAction.emergencyCall":
        case "TextInputAction.join":
        case "TextInputAction.none":
        case "TextInputAction.route":
        case "TextInputAction.unspecified":
        default:
          {
            return _engine.EngineInputAction.none;
          }
      }
    }
    configureInputAction(domElement) {
      if (domElement == null) dart.nullFailed(I[377], 78, 44, "domElement");
      if (this.enterkeyhintAttribute == null) {
        return;
      }
      if (ui_web.browser.operatingSystem == ui_web.OperatingSystem.iOs || ui_web.browser.operatingSystem == ui_web.OperatingSystem.android || this.enterkeyhintAttribute == _engine.EngineInputAction.none.enterkeyhintAttribute) {
        _engine['DomElementExtension|setAttribute'](domElement, "enterkeyhint", dart.nullCheck(this.enterkeyhintAttribute));
      }
    }
  };
  (_engine.EngineInputAction.new = function() {
    ;
  }).prototype = _engine.EngineInputAction.prototype;
  dart.addRtiResources(_engine.EngineInputAction, ["_engine|EngineInputAction"]);
  dart.setMethodSignature(_engine.EngineInputAction, () => dart.global.Object.setPrototypeOf({configureInputAction: T$9.DomHTMLElementTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineInputAction))));
  dart.setStaticMethodSignature(_engine.EngineInputAction, () => ['fromName']);
  dart.setLibraryUri(_engine.EngineInputAction, I[220]);
  dart.setStaticFieldSignature(_engine.EngineInputAction, () => ['none', 'next', 'previous', 'done', 'go', 'enter', 'search', 'send']);
  dart.defineLazy(_engine.EngineInputAction, {
    /*_engine.EngineInputAction.none*/get none() {
      return C[1014] || CT.C1014;
    },
    /*_engine.EngineInputAction.next*/get next() {
      return C[1015] || CT.C1015;
    },
    /*_engine.EngineInputAction.previous*/get previous() {
      return C[1016] || CT.C1016;
    },
    /*_engine.EngineInputAction.done*/get done() {
      return C[1017] || CT.C1017;
    },
    /*_engine.EngineInputAction.go*/get go() {
      return C[1018] || CT.C1018;
    },
    /*_engine.EngineInputAction.enter*/get enter() {
      return C[1019] || CT.C1019;
    },
    /*_engine.EngineInputAction.search*/get search() {
      return C[1020] || CT.C1020;
    },
    /*_engine.EngineInputAction.send*/get send() {
      return C[1021] || CT.C1021;
    }
  }, false);
  _engine.NoInputAction = class NoInputAction extends _engine.EngineInputAction {
    static ['_#new#tearOff']() {
      return new _engine.NoInputAction.new();
    }
    get enterkeyhintAttribute() {
      return null;
    }
  };
  (_engine.NoInputAction.new = function() {
    dart.global.Object.getPrototypeOf(_engine.NoInputAction).new.call(this);
    ;
  }).prototype = _engine.NoInputAction.prototype;
  dart.addRtiResources(_engine.NoInputAction, ["_engine|NoInputAction"]);
  dart.setGetterSignature(_engine.NoInputAction, () => dart.global.Object.setPrototypeOf({enterkeyhintAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.NoInputAction))));
  dart.setLibraryUri(_engine.NoInputAction, I[220]);
  _engine.EnterInputAction = class EnterInputAction extends _engine.EngineInputAction {
    static ['_#new#tearOff']() {
      return new _engine.EnterInputAction.new();
    }
    get enterkeyhintAttribute() {
      return "enter";
    }
  };
  (_engine.EnterInputAction.new = function() {
    dart.global.Object.getPrototypeOf(_engine.EnterInputAction).new.call(this);
    ;
  }).prototype = _engine.EnterInputAction.prototype;
  dart.addRtiResources(_engine.EnterInputAction, ["_engine|EnterInputAction"]);
  dart.setGetterSignature(_engine.EnterInputAction, () => dart.global.Object.setPrototypeOf({enterkeyhintAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EnterInputAction))));
  dart.setLibraryUri(_engine.EnterInputAction, I[220]);
  _engine.DoneInputAction = class DoneInputAction extends _engine.EngineInputAction {
    static ['_#new#tearOff']() {
      return new _engine.DoneInputAction.new();
    }
    get enterkeyhintAttribute() {
      return "done";
    }
  };
  (_engine.DoneInputAction.new = function() {
    dart.global.Object.getPrototypeOf(_engine.DoneInputAction).new.call(this);
    ;
  }).prototype = _engine.DoneInputAction.prototype;
  dart.addRtiResources(_engine.DoneInputAction, ["_engine|DoneInputAction"]);
  dart.setGetterSignature(_engine.DoneInputAction, () => dart.global.Object.setPrototypeOf({enterkeyhintAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.DoneInputAction))));
  dart.setLibraryUri(_engine.DoneInputAction, I[220]);
  _engine.GoInputAction = class GoInputAction extends _engine.EngineInputAction {
    static ['_#new#tearOff']() {
      return new _engine.GoInputAction.new();
    }
    get enterkeyhintAttribute() {
      return "go";
    }
  };
  (_engine.GoInputAction.new = function() {
    dart.global.Object.getPrototypeOf(_engine.GoInputAction).new.call(this);
    ;
  }).prototype = _engine.GoInputAction.prototype;
  dart.addRtiResources(_engine.GoInputAction, ["_engine|GoInputAction"]);
  dart.setGetterSignature(_engine.GoInputAction, () => dart.global.Object.setPrototypeOf({enterkeyhintAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.GoInputAction))));
  dart.setLibraryUri(_engine.GoInputAction, I[220]);
  _engine.NextInputAction = class NextInputAction extends _engine.EngineInputAction {
    static ['_#new#tearOff']() {
      return new _engine.NextInputAction.new();
    }
    get enterkeyhintAttribute() {
      return "next";
    }
  };
  (_engine.NextInputAction.new = function() {
    dart.global.Object.getPrototypeOf(_engine.NextInputAction).new.call(this);
    ;
  }).prototype = _engine.NextInputAction.prototype;
  dart.addRtiResources(_engine.NextInputAction, ["_engine|NextInputAction"]);
  dart.setGetterSignature(_engine.NextInputAction, () => dart.global.Object.setPrototypeOf({enterkeyhintAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.NextInputAction))));
  dart.setLibraryUri(_engine.NextInputAction, I[220]);
  _engine.PreviousInputAction = class PreviousInputAction extends _engine.EngineInputAction {
    static ['_#new#tearOff']() {
      return new _engine.PreviousInputAction.new();
    }
    get enterkeyhintAttribute() {
      return "previous";
    }
  };
  (_engine.PreviousInputAction.new = function() {
    dart.global.Object.getPrototypeOf(_engine.PreviousInputAction).new.call(this);
    ;
  }).prototype = _engine.PreviousInputAction.prototype;
  dart.addRtiResources(_engine.PreviousInputAction, ["_engine|PreviousInputAction"]);
  dart.setGetterSignature(_engine.PreviousInputAction, () => dart.global.Object.setPrototypeOf({enterkeyhintAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PreviousInputAction))));
  dart.setLibraryUri(_engine.PreviousInputAction, I[220]);
  _engine.SearchInputAction = class SearchInputAction extends _engine.EngineInputAction {
    static ['_#new#tearOff']() {
      return new _engine.SearchInputAction.new();
    }
    get enterkeyhintAttribute() {
      return "search";
    }
  };
  (_engine.SearchInputAction.new = function() {
    dart.global.Object.getPrototypeOf(_engine.SearchInputAction).new.call(this);
    ;
  }).prototype = _engine.SearchInputAction.prototype;
  dart.addRtiResources(_engine.SearchInputAction, ["_engine|SearchInputAction"]);
  dart.setGetterSignature(_engine.SearchInputAction, () => dart.global.Object.setPrototypeOf({enterkeyhintAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SearchInputAction))));
  dart.setLibraryUri(_engine.SearchInputAction, I[220]);
  _engine.SendInputAction = class SendInputAction extends _engine.EngineInputAction {
    static ['_#new#tearOff']() {
      return new _engine.SendInputAction.new();
    }
    get enterkeyhintAttribute() {
      return "send";
    }
  };
  (_engine.SendInputAction.new = function() {
    dart.global.Object.getPrototypeOf(_engine.SendInputAction).new.call(this);
    ;
  }).prototype = _engine.SendInputAction.prototype;
  dart.addRtiResources(_engine.SendInputAction, ["_engine|SendInputAction"]);
  dart.setGetterSignature(_engine.SendInputAction, () => dart.global.Object.setPrototypeOf({enterkeyhintAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.SendInputAction))));
  dart.setLibraryUri(_engine.SendInputAction, I[220]);
  _engine.EngineInputType = class EngineInputType extends core.Object {
    static fromName(name, opts) {
      if (name == null) dart.nullFailed(I[378], 17, 42, "name");
      let isDecimal = opts && 'isDecimal' in opts ? opts.isDecimal : false;
      if (isDecimal == null) dart.nullFailed(I[378], 17, 54, "isDecimal");
      let isMultiline = opts && 'isMultiline' in opts ? opts.isMultiline : false;
      if (isMultiline == null) dart.nullFailed(I[378], 17, 78, "isMultiline");
      switch (name) {
        case "TextInputType.number":
          {
            return dart.test(isDecimal) ? _engine.EngineInputType.decimal : _engine.EngineInputType.number;
          }
        case "TextInputType.phone":
          {
            return _engine.EngineInputType.phone;
          }
        case "TextInputType.emailAddress":
          {
            return _engine.EngineInputType.emailAddress;
          }
        case "TextInputType.url":
          {
            return _engine.EngineInputType.url;
          }
        case "TextInputType.multiline":
          {
            return _engine.EngineInputType.multiline;
          }
        case "TextInputType.none":
          {
            return dart.test(isMultiline) ? _engine.EngineInputType.multilineNone : _engine.EngineInputType.none;
          }
        case "TextInputType.text":
        default:
          {
            return _engine.EngineInputType.text;
          }
      }
    }
    createDomElement() {
      return _engine.createDomHTMLInputElement();
    }
    configureInputMode(domElement) {
      if (domElement == null) dart.nullFailed(I[378], 77, 42, "domElement");
      if (this.inputmodeAttribute == null) {
        return;
      }
      if (ui_web.browser.operatingSystem == ui_web.OperatingSystem.iOs || ui_web.browser.operatingSystem == ui_web.OperatingSystem.android || this.inputmodeAttribute == _engine.EngineInputType.none.inputmodeAttribute) {
        _engine['DomElementExtension|setAttribute'](domElement, "inputmode", dart.nullCheck(this.inputmodeAttribute));
      }
    }
  };
  (_engine.EngineInputType.new = function() {
    ;
  }).prototype = _engine.EngineInputType.prototype;
  dart.addRtiResources(_engine.EngineInputType, ["_engine|EngineInputType"]);
  dart.setMethodSignature(_engine.EngineInputType, () => dart.global.Object.setPrototypeOf({
    createDomElement: T$12.VoidToDomHTMLElement(),
    configureInputMode: T$9.DomHTMLElementTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineInputType))));
  dart.setStaticMethodSignature(_engine.EngineInputType, () => ['fromName']);
  dart.setLibraryUri(_engine.EngineInputType, I[220]);
  dart.setStaticFieldSignature(_engine.EngineInputType, () => ['none', 'multilineNone', 'text', 'number', 'decimal', 'phone', 'emailAddress', 'url', 'multiline']);
  dart.defineLazy(_engine.EngineInputType, {
    /*_engine.EngineInputType.none*/get none() {
      return C[1022] || CT.C1022;
    },
    /*_engine.EngineInputType.multilineNone*/get multilineNone() {
      return C[1023] || CT.C1023;
    },
    /*_engine.EngineInputType.text*/get text() {
      return C[1024] || CT.C1024;
    },
    /*_engine.EngineInputType.number*/get number() {
      return C[1025] || CT.C1025;
    },
    /*_engine.EngineInputType.decimal*/get decimal() {
      return C[1026] || CT.C1026;
    },
    /*_engine.EngineInputType.phone*/get phone() {
      return C[1027] || CT.C1027;
    },
    /*_engine.EngineInputType.emailAddress*/get emailAddress() {
      return C[1028] || CT.C1028;
    },
    /*_engine.EngineInputType.url*/get url() {
      return C[1029] || CT.C1029;
    },
    /*_engine.EngineInputType.multiline*/get multiline() {
      return C[1030] || CT.C1030;
    }
  }, false);
  _engine.NoTextInputType = class NoTextInputType extends _engine.EngineInputType {
    static ['_#new#tearOff']() {
      return new _engine.NoTextInputType.new();
    }
    get inputmodeAttribute() {
      return "none";
    }
  };
  (_engine.NoTextInputType.new = function() {
    dart.global.Object.getPrototypeOf(_engine.NoTextInputType).new.call(this);
    ;
  }).prototype = _engine.NoTextInputType.prototype;
  dart.addRtiResources(_engine.NoTextInputType, ["_engine|NoTextInputType"]);
  dart.setGetterSignature(_engine.NoTextInputType, () => dart.global.Object.setPrototypeOf({inputmodeAttribute: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.NoTextInputType))));
  dart.setLibraryUri(_engine.NoTextInputType, I[220]);
  _engine.MultilineInputType = class MultilineInputType extends _engine.EngineInputType {
    static ['_#new#tearOff']() {
      return new _engine.MultilineInputType.new();
    }
    get inputmodeAttribute() {
      return null;
    }
    createDomElement() {
      return _engine.createDomHTMLTextAreaElement();
    }
  };
  (_engine.MultilineInputType.new = function() {
    dart.global.Object.getPrototypeOf(_engine.MultilineInputType).new.call(this);
    ;
  }).prototype = _engine.MultilineInputType.prototype;
  dart.addRtiResources(_engine.MultilineInputType, ["_engine|MultilineInputType"]);
  dart.setGetterSignature(_engine.MultilineInputType, () => dart.global.Object.setPrototypeOf({inputmodeAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.MultilineInputType))));
  dart.setLibraryUri(_engine.MultilineInputType, I[220]);
  _engine.MultilineNoTextInputType = class MultilineNoTextInputType extends _engine.MultilineInputType {
    static ['_#new#tearOff']() {
      return new _engine.MultilineNoTextInputType.new();
    }
    get inputmodeAttribute() {
      return "none";
    }
    createDomElement() {
      return _engine.createDomHTMLTextAreaElement();
    }
  };
  (_engine.MultilineNoTextInputType.new = function() {
    dart.global.Object.getPrototypeOf(_engine.MultilineNoTextInputType).new.call(this);
    ;
  }).prototype = _engine.MultilineNoTextInputType.prototype;
  dart.addRtiResources(_engine.MultilineNoTextInputType, ["_engine|MultilineNoTextInputType"]);
  dart.setLibraryUri(_engine.MultilineNoTextInputType, I[220]);
  _engine.TextInputType = class TextInputType extends _engine.EngineInputType {
    static ['_#new#tearOff']() {
      return new _engine.TextInputType.new();
    }
    get inputmodeAttribute() {
      return null;
    }
  };
  (_engine.TextInputType.new = function() {
    dart.global.Object.getPrototypeOf(_engine.TextInputType).new.call(this);
    ;
  }).prototype = _engine.TextInputType.prototype;
  dart.addRtiResources(_engine.TextInputType, ["_engine|TextInputType"]);
  dart.setGetterSignature(_engine.TextInputType, () => dart.global.Object.setPrototypeOf({inputmodeAttribute: T$.StringN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.TextInputType))));
  dart.setLibraryUri(_engine.TextInputType, I[220]);
  _engine.NumberInputType = class NumberInputType extends _engine.EngineInputType {
    static ['_#new#tearOff']() {
      return new _engine.NumberInputType.new();
    }
    get inputmodeAttribute() {
      return "numeric";
    }
  };
  (_engine.NumberInputType.new = function() {
    dart.global.Object.getPrototypeOf(_engine.NumberInputType).new.call(this);
    ;
  }).prototype = _engine.NumberInputType.prototype;
  dart.addRtiResources(_engine.NumberInputType, ["_engine|NumberInputType"]);
  dart.setGetterSignature(_engine.NumberInputType, () => dart.global.Object.setPrototypeOf({inputmodeAttribute: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.NumberInputType))));
  dart.setLibraryUri(_engine.NumberInputType, I[220]);
  _engine.DecimalInputType = class DecimalInputType extends _engine.EngineInputType {
    static ['_#new#tearOff']() {
      return new _engine.DecimalInputType.new();
    }
    get inputmodeAttribute() {
      return "decimal";
    }
  };
  (_engine.DecimalInputType.new = function() {
    dart.global.Object.getPrototypeOf(_engine.DecimalInputType).new.call(this);
    ;
  }).prototype = _engine.DecimalInputType.prototype;
  dart.addRtiResources(_engine.DecimalInputType, ["_engine|DecimalInputType"]);
  dart.setGetterSignature(_engine.DecimalInputType, () => dart.global.Object.setPrototypeOf({inputmodeAttribute: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.DecimalInputType))));
  dart.setLibraryUri(_engine.DecimalInputType, I[220]);
  _engine.PhoneInputType = class PhoneInputType extends _engine.EngineInputType {
    static ['_#new#tearOff']() {
      return new _engine.PhoneInputType.new();
    }
    get inputmodeAttribute() {
      return "tel";
    }
  };
  (_engine.PhoneInputType.new = function() {
    dart.global.Object.getPrototypeOf(_engine.PhoneInputType).new.call(this);
    ;
  }).prototype = _engine.PhoneInputType.prototype;
  dart.addRtiResources(_engine.PhoneInputType, ["_engine|PhoneInputType"]);
  dart.setGetterSignature(_engine.PhoneInputType, () => dart.global.Object.setPrototypeOf({inputmodeAttribute: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.PhoneInputType))));
  dart.setLibraryUri(_engine.PhoneInputType, I[220]);
  _engine.EmailInputType = class EmailInputType extends _engine.EngineInputType {
    static ['_#new#tearOff']() {
      return new _engine.EmailInputType.new();
    }
    get inputmodeAttribute() {
      return "email";
    }
  };
  (_engine.EmailInputType.new = function() {
    dart.global.Object.getPrototypeOf(_engine.EmailInputType).new.call(this);
    ;
  }).prototype = _engine.EmailInputType.prototype;
  dart.addRtiResources(_engine.EmailInputType, ["_engine|EmailInputType"]);
  dart.setGetterSignature(_engine.EmailInputType, () => dart.global.Object.setPrototypeOf({inputmodeAttribute: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EmailInputType))));
  dart.setLibraryUri(_engine.EmailInputType, I[220]);
  _engine.UrlInputType = class UrlInputType extends _engine.EngineInputType {
    static ['_#new#tearOff']() {
      return new _engine.UrlInputType.new();
    }
    get inputmodeAttribute() {
      return "url";
    }
  };
  (_engine.UrlInputType.new = function() {
    dart.global.Object.getPrototypeOf(_engine.UrlInputType).new.call(this);
    ;
  }).prototype = _engine.UrlInputType.prototype;
  dart.addRtiResources(_engine.UrlInputType, ["_engine|UrlInputType"]);
  dart.setGetterSignature(_engine.UrlInputType, () => dart.global.Object.setPrototypeOf({inputmodeAttribute: T$.String()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.UrlInputType))));
  dart.setLibraryUri(_engine.UrlInputType, I[220]);
  _engine.TextCapitalization = class TextCapitalization extends core._Enum {
    [_enumToString]() {
      return "TextCapitalization." + dart.str(this[_name$]);
    }
  };
  (_engine.TextCapitalization.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[379], 14, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[379], 14, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.TextCapitalization).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.TextCapitalization.prototype;
  dart.addRtiResources(_engine.TextCapitalization, ["_engine|TextCapitalization"]);
  dart.setMethodSignature(_engine.TextCapitalization, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextCapitalization))));
  dart.setLibraryUri(_engine.TextCapitalization, I[220]);
  dart.setStaticFieldSignature(_engine.TextCapitalization, () => ['values', 'words', 'sentences', 'characters', 'none']);
  dart.defineLazy(_engine.TextCapitalization, {
    /*_engine.TextCapitalization.values*/get values() {
      return C[1031] || CT.C1031;
    },
    /*_engine.TextCapitalization.words*/get words() {
      return C[1032] || CT.C1032;
    },
    /*_engine.TextCapitalization.sentences*/get sentences() {
      return C[1033] || CT.C1033;
    },
    /*_engine.TextCapitalization.characters*/get characters() {
      return C[1034] || CT.C1034;
    },
    /*_engine.TextCapitalization.none*/get none() {
      return C[1035] || CT.C1035;
    }
  }, false);
  var textCapitalization = dart.privateName(_engine, "TextCapitalizationConfig.textCapitalization");
  _engine.TextCapitalizationConfig = class TextCapitalizationConfig extends core.Object {
    get textCapitalization() {
      return this[textCapitalization];
    }
    set textCapitalization(value) {
      super.textCapitalization = value;
    }
    static ['_#defaultCapitalization#tearOff']() {
      return new _engine.TextCapitalizationConfig.defaultCapitalization();
    }
    static ['_#fromInputConfiguration#tearOff'](inputConfiguration) {
      if (inputConfiguration == null) dart.nullFailed(I[379], 38, 64, "inputConfiguration");
      return new _engine.TextCapitalizationConfig.fromInputConfiguration(inputConfiguration);
    }
    setAutocapitalizeAttribute(domElement) {
      if (domElement == null) dart.nullFailed(I[379], 60, 50, "domElement");
      let autocapitalize = "";
      switch (this.textCapitalization) {
        case C[1032] || CT.C1032:
          {
            if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
              autocapitalize = "sentences";
            } else {
              autocapitalize = "words";
            }
            break;
          }
        case C[1034] || CT.C1034:
          {
            autocapitalize = "characters";
            break;
          }
        case C[1033] || CT.C1033:
          {
            autocapitalize = "sentences";
            break;
          }
        case C[1035] || CT.C1035:
        default:
          {
            autocapitalize = "off";
            break;
          }
      }
      if (dart.test(_engine.domInstanceOfString(domElement, "HTMLInputElement"))) {
        let element = T$12.DomHTMLInputElement()[_as](domElement);
        _engine['DomElementExtension|setAttribute'](element, "autocapitalize", autocapitalize);
      } else if (dart.test(_engine.domInstanceOfString(domElement, "HTMLTextAreaElement"))) {
        let element = T$12.DomHTMLTextAreaElement()[_as](domElement);
        _engine['DomElementExtension|setAttribute'](element, "autocapitalize", autocapitalize);
      }
    }
  };
  (_engine.TextCapitalizationConfig.defaultCapitalization = function() {
    this[textCapitalization] = _engine.TextCapitalization.none;
    ;
  }).prototype = _engine.TextCapitalizationConfig.prototype;
  (_engine.TextCapitalizationConfig.fromInputConfiguration = function(inputConfiguration) {
    if (inputConfiguration == null) dart.nullFailed(I[379], 38, 64, "inputConfiguration");
    this[textCapitalization] = inputConfiguration === "TextCapitalization.words" ? _engine.TextCapitalization.words : inputConfiguration === "TextCapitalization.characters" ? _engine.TextCapitalization.characters : inputConfiguration === "TextCapitalization.sentences" ? _engine.TextCapitalization.sentences : _engine.TextCapitalization.none;
    ;
  }).prototype = _engine.TextCapitalizationConfig.prototype;
  dart.addRtiResources(_engine.TextCapitalizationConfig, ["_engine|TextCapitalizationConfig"]);
  dart.setMethodSignature(_engine.TextCapitalizationConfig, () => dart.global.Object.setPrototypeOf({setAutocapitalizeAttribute: T$9.DomHTMLElementTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextCapitalizationConfig))));
  dart.setLibraryUri(_engine.TextCapitalizationConfig, I[220]);
  dart.setFieldSignature(_engine.TextCapitalizationConfig, () => dart.global.Object.setPrototypeOf({textCapitalization: {type: T$12.TextCapitalization(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextCapitalizationConfig))));
  var formElement$ = dart.privateName(_engine, "EngineAutofillForm.formElement");
  var elements$ = dart.privateName(_engine, "EngineAutofillForm.elements");
  var items$ = dart.privateName(_engine, "EngineAutofillForm.items");
  var insertionReferenceNode$ = dart.privateName(_engine, "EngineAutofillForm.insertionReferenceNode");
  var formIdentifier$ = dart.privateName(_engine, "EngineAutofillForm.formIdentifier");
  var viewId$6 = dart.privateName(_engine, "EngineAutofillForm.viewId");
  var _sendAutofillEditingState = dart.privateName(_engine, "_sendAutofillEditingState");
  _engine.EngineAutofillForm = class EngineAutofillForm extends core.Object {
    get formElement() {
      return this[formElement$];
    }
    set formElement(value) {
      super.formElement = value;
    }
    get elements() {
      return this[elements$];
    }
    set elements(value) {
      super.elements = value;
    }
    get items() {
      return this[items$];
    }
    set items(value) {
      super.items = value;
    }
    get insertionReferenceNode() {
      return this[insertionReferenceNode$];
    }
    set insertionReferenceNode(value) {
      super.insertionReferenceNode = value;
    }
    get formIdentifier() {
      return this[formIdentifier$];
    }
    set formIdentifier(value) {
      super.formIdentifier = value;
    }
    get viewId() {
      return this[viewId$6];
    }
    set viewId(value) {
      super.viewId = value;
    }
    static ['_#new#tearOff'](opts) {
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      if (viewId == null) dart.nullFailed(I[354], 165, 19, "viewId");
      let formElement = opts && 'formElement' in opts ? opts.formElement : null;
      if (formElement == null) dart.nullFailed(I[354], 166, 19, "formElement");
      let elements = opts && 'elements' in opts ? opts.elements : null;
      let items = opts && 'items' in opts ? opts.items : null;
      let formIdentifier = opts && 'formIdentifier' in opts ? opts.formIdentifier : "";
      if (formIdentifier == null) dart.nullFailed(I[354], 169, 10, "formIdentifier");
      let insertionReferenceNode = opts && 'insertionReferenceNode' in opts ? opts.insertionReferenceNode : null;
      return new _engine.EngineAutofillForm.new({viewId: viewId, formElement: formElement, elements: elements, items: items, formIdentifier: formIdentifier, insertionReferenceNode: insertionReferenceNode});
    }
    static fromFrameworkMessage(viewId, focusedElementAutofill, fields) {
      let t$36702, t$36702$;
      if (viewId == null) dart.nullFailed(I[354], 204, 9, "viewId");
      if (focusedElementAutofill == null) {
        return null;
      }
      let elements = new (G$.IdentityMapOfString$DomHTMLElement()).new();
      let items = new (G$.IdentityMapOfString$AutofillInfo()).new();
      let formElement = _engine.createDomHTMLFormElement();
      let isSafariDesktopStrategy = T$12.SafariDesktopTextEditingStrategy()[_is](_engine.textEditing.strategy);
      let insertionReferenceNode = null;
      _engine['DomHTMLFormElementExtension|set#noValidate'](formElement, true);
      _engine['DomHTMLFormElementExtension|set#method'](formElement, "post");
      _engine['DomHTMLFormElementExtension|set#action'](formElement, "#");
      _engine['DomEventTargetExtension|addEventListener'](formElement, "submit", _engine.preventDefaultListener);
      _engine._styleAutofillElements(formElement, {shouldDisablePointerEvents: isSafariDesktopStrategy});
      let ids = G.ListOfString().empty({growable: true});
      let focusedElement = _engine.AutofillInfo.fromFrameworkMessage(focusedElementAutofill);
      if (fields != null) {
        let fieldIsFocusedElement = false;
        for (let field of fields[$cast](T$2.MapOfString$dynamic())) {
          let autofillInfo = _engine['JsonExtensions|readJson'](field, "autofill");
          let autofill = _engine.AutofillInfo.fromFrameworkMessage(autofillInfo, {textCapitalization: new _engine.TextCapitalizationConfig.fromInputConfiguration(_engine['JsonExtensions|readString'](field, "textCapitalization"))});
          ids[$add](autofill.uniqueIdentifier);
          if (autofill.uniqueIdentifier != focusedElement.uniqueIdentifier) {
            let engineInputType = _engine.EngineInputType.fromName(_engine['JsonExtensions|readString'](_engine['JsonExtensions|readJson'](field, "inputType"), "name"));
            let htmlElement = engineInputType.createDomElement();
            autofill.editingState.applyToDomElement(htmlElement);
            autofill.applyToDomElement(htmlElement);
            _engine._styleAutofillElements(htmlElement, {shouldHideElement: !isSafariDesktopStrategy, shouldDisablePointerEvents: isSafariDesktopStrategy});
            items[$_set](autofill.uniqueIdentifier, autofill);
            elements[$_set](autofill.uniqueIdentifier, htmlElement);
            formElement.append(htmlElement);
            if (fieldIsFocusedElement) {
              insertionReferenceNode = htmlElement;
              fieldIsFocusedElement = false;
            }
          } else {
            fieldIsFocusedElement = true;
          }
        }
      } else {
        ids[$add](focusedElement.uniqueIdentifier);
      }
      ids[$sort]();
      let idBuffer = new core.StringBuffer.new();
      for (let id of ids) {
        if (dart.notNull(idBuffer.length) > 0) {
          idBuffer.write("*");
        }
        idBuffer.write(id);
      }
      let formIdentifier = dart.toString(idBuffer);
      let form = _engine.formsOnTheDom[$_get](formIdentifier);
      t$36702 = form;
      t$36702 == null ? null : t$36702.remove();
      let submitButton = (t$36702$ = _engine.createDomHTMLInputElement(), (() => {
        _engine['DomElementExtension|set#tabIndex'](t$36702$, -1.0);
        return t$36702$;
      })());
      _engine._styleAutofillElements(submitButton, {isOffScreen: true});
      _engine['DomElementExtension|set#className'](submitButton, "submitBtn");
      _engine['DomHTMLInputElementExtension|set#type'](submitButton, "submit");
      formElement.append(submitButton);
      insertionReferenceNode == null ? insertionReferenceNode = submitButton : null;
      return new _engine.EngineAutofillForm.new({viewId: viewId, formElement: formElement, elements: elements, items: items, formIdentifier: formIdentifier, insertionReferenceNode: insertionReferenceNode});
    }
    placeForm(mainTextEditingElement) {
      if (mainTextEditingElement == null) dart.nullFailed(I[354], 338, 33, "mainTextEditingElement");
      if (T$12.SafariDesktopTextEditingStrategy()[_is](_engine.textEditing.strategy)) {
        _engine['DomCSSStyleDeclarationExtension|set#pointerEvents'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), mainTextEditingElement, "style"), "all");
      }
      T$9.DomNode()[_as](this.formElement.insertBefore(mainTextEditingElement, this.insertionReferenceNode));
      _engine._insertEditingElementInView(this.formElement, this.viewId);
    }
    storeForm() {
      _engine.formsOnTheDom[$_set](this.formIdentifier, this.formElement);
      _engine._styleAutofillElements(this.formElement, {isOffScreen: true});
    }
    addInputEventListeners() {
      let keys = dart.nullCheck(this.elements)[$keys];
      let subscriptions = G$.JSArrayOfDomSubscription().of([]);
      const addSubscriptionForKey = key => {
        if (key == null) dart.nullFailed(I[354], 370, 39, "key");
        let element = dart.nullCheck(dart.nullCheck(this.elements)[$_get](key));
        subscriptions[$add](new _engine.DomSubscription.new(element, "input", dart.fn(e => {
          if (e == null) dart.nullFailed(I[354], 374, 27, "e");
          if (dart.nullCheck(this.items)[$_get](key) == null) {
            dart.throw(new core.StateError.new("AutofillInfo must have a valid uniqueIdentifier."));
          } else {
            let autofillInfo = dart.nullCheck(dart.nullCheck(this.items)[$_get](key));
            this.handleChange(element, autofillInfo);
          }
        }, T$10.DomEventTovoid())));
      };
      dart.fn(addSubscriptionForKey, T$.StringTovoid());
      keys[$forEach](addSubscriptionForKey);
      return subscriptions;
    }
    handleChange(domElement, autofillInfo) {
      if (domElement == null) dart.nullFailed(I[354], 389, 32, "domElement");
      if (autofillInfo == null) dart.nullFailed(I[354], 389, 57, "autofillInfo");
      let newEditingState = _engine.EditingState.fromDomElement(T$10.DomHTMLElement()[_as](domElement));
      this[_sendAutofillEditingState](autofillInfo.uniqueIdentifier, newEditingState);
    }
    [_sendAutofillEditingState](tag, editingState) {
      if (editingState == null) dart.nullFailed(I[354], 397, 60, "editingState");
      _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/textinput", (C[847] || CT.C847).encodeMethodCall(new _engine.MethodCall.new("TextInputClient.updateEditingStateWithTag", [0, new (G$.IdentityMapOfStringN$dynamic()).from([tag, editingState.toFlutter()])])), C[1036] || CT.C1036);
    }
  };
  (_engine.EngineAutofillForm.new = function(opts) {
    let viewId = opts && 'viewId' in opts ? opts.viewId : null;
    if (viewId == null) dart.nullFailed(I[354], 165, 19, "viewId");
    let formElement = opts && 'formElement' in opts ? opts.formElement : null;
    if (formElement == null) dart.nullFailed(I[354], 166, 19, "formElement");
    let elements = opts && 'elements' in opts ? opts.elements : null;
    let items = opts && 'items' in opts ? opts.items : null;
    let formIdentifier = opts && 'formIdentifier' in opts ? opts.formIdentifier : "";
    if (formIdentifier == null) dart.nullFailed(I[354], 169, 10, "formIdentifier");
    let insertionReferenceNode = opts && 'insertionReferenceNode' in opts ? opts.insertionReferenceNode : null;
    this[viewId$6] = viewId;
    this[formElement$] = formElement;
    this[elements$] = elements;
    this[items$] = items;
    this[formIdentifier$] = formIdentifier;
    this[insertionReferenceNode$] = insertionReferenceNode;
    ;
  }).prototype = _engine.EngineAutofillForm.prototype;
  dart.addRtiResources(_engine.EngineAutofillForm, ["_engine|EngineAutofillForm"]);
  dart.setMethodSignature(_engine.EngineAutofillForm, () => dart.global.Object.setPrototypeOf({
    placeForm: T$9.DomHTMLElementTovoid(),
    storeForm: T$.VoidTovoid(),
    addInputEventListeners: T$12.VoidToListOfDomSubscription(),
    handleChange: T$12.DomElementAndAutofillInfoTovoid(),
    [_sendAutofillEditingState]: T$12.StringNAndEditingStateTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineAutofillForm))));
  dart.setStaticMethodSignature(_engine.EngineAutofillForm, () => ['fromFrameworkMessage']);
  dart.setLibraryUri(_engine.EngineAutofillForm, I[220]);
  dart.setFieldSignature(_engine.EngineAutofillForm, () => dart.global.Object.setPrototypeOf({
    formElement: {type: T$12.DomHTMLFormElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    elements: {type: T$12.MapNOfString$DomHTMLElement(), isConst: false, isFinal: true, libraryUri: I[11]},
    items: {type: T$12.MapNOfString$AutofillInfo(), isConst: false, isFinal: true, libraryUri: I[11]},
    insertionReferenceNode: {type: T$9.DomHTMLElementN(), isConst: false, isFinal: true, libraryUri: I[220]},
    formIdentifier: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineAutofillForm))));
  var editingState$ = dart.privateName(_engine, "AutofillInfo.editingState");
  var uniqueIdentifier$ = dart.privateName(_engine, "AutofillInfo.uniqueIdentifier");
  var textCapitalization$ = dart.privateName(_engine, "AutofillInfo.textCapitalization");
  var autofillHint$ = dart.privateName(_engine, "AutofillInfo.autofillHint");
  var placeholder$ = dart.privateName(_engine, "AutofillInfo.placeholder");
  _engine.AutofillInfo = class AutofillInfo extends core.Object {
    get editingState() {
      return this[editingState$];
    }
    set editingState(value) {
      super.editingState = value;
    }
    get uniqueIdentifier() {
      return this[uniqueIdentifier$];
    }
    set uniqueIdentifier(value) {
      super.uniqueIdentifier = value;
    }
    get textCapitalization() {
      return this[textCapitalization$];
    }
    set textCapitalization(value) {
      super.textCapitalization = value;
    }
    get autofillHint() {
      return this[autofillHint$];
    }
    set autofillHint(value) {
      super.autofillHint = value;
    }
    get placeholder() {
      return this[placeholder$];
    }
    set placeholder(value) {
      super.placeholder = value;
    }
    static ['_#new#tearOff'](opts) {
      let editingState = opts && 'editingState' in opts ? opts.editingState : null;
      if (editingState == null) dart.nullFailed(I[354], 420, 19, "editingState");
      let uniqueIdentifier = opts && 'uniqueIdentifier' in opts ? opts.uniqueIdentifier : null;
      if (uniqueIdentifier == null) dart.nullFailed(I[354], 421, 19, "uniqueIdentifier");
      let autofillHint = opts && 'autofillHint' in opts ? opts.autofillHint : null;
      let textCapitalization = opts && 'textCapitalization' in opts ? opts.textCapitalization : null;
      if (textCapitalization == null) dart.nullFailed(I[354], 423, 19, "textCapitalization");
      let placeholder = opts && 'placeholder' in opts ? opts.placeholder : null;
      return new _engine.AutofillInfo.new({editingState: editingState, uniqueIdentifier: uniqueIdentifier, autofillHint: autofillHint, textCapitalization: textCapitalization, placeholder: placeholder});
    }
    static fromFrameworkMessage(autofill, opts) {
      if (autofill == null) dart.nullFailed(I[354], 427, 66, "autofill");
      let textCapitalization = opts && 'textCapitalization' in opts ? opts.textCapitalization : C[1037] || CT.C1037;
      if (textCapitalization == null) dart.nullFailed(I[354], 428, 33, "textCapitalization");
      let uniqueIdentifier = _engine['JsonExtensions|readString'](autofill, "uniqueIdentifier");
      let hintsList = _engine['JsonExtensions|tryList'](autofill, "hints");
      let firstHint = hintsList == null || dart.test(hintsList[$isEmpty]) ? null : T$.String()[_as](hintsList[$first]);
      let editingState = _engine.EditingState.fromFrameworkMessage(_engine['JsonExtensions|readJson'](autofill, "editingValue"));
      return new _engine.AutofillInfo.new({uniqueIdentifier: uniqueIdentifier, autofillHint: firstHint != null ? _engine.BrowserAutofillHints.instance.flutterToEngine(firstHint) : null, editingState: editingState, placeholder: _engine['JsonExtensions|tryString'](autofill, "hintText"), textCapitalization: textCapitalization});
    }
    static ['_#fromFrameworkMessage#tearOff'](autofill, opts) {
      if (autofill == null) dart.nullFailed(I[354], 427, 66, "autofill");
      let textCapitalization = opts && 'textCapitalization' in opts ? opts.textCapitalization : C[1037] || CT.C1037;
      if (textCapitalization == null) dart.nullFailed(I[354], 428, 33, "textCapitalization");
      return _engine.AutofillInfo.fromFrameworkMessage(autofill, {textCapitalization: textCapitalization});
    }
    applyToDomElement(domElement, opts) {
      let t$36702, t$36702$;
      if (domElement == null) dart.nullFailed(I[354], 482, 41, "domElement");
      let focusedElement = opts && 'focusedElement' in opts ? opts.focusedElement : false;
      if (focusedElement == null) dart.nullFailed(I[354], 483, 13, "focusedElement");
      let autofillHint = this.autofillHint;
      let placeholder = this.placeholder;
      if (dart.test(_engine.domInstanceOfString(domElement, "HTMLInputElement"))) {
        let element = T$12.DomHTMLInputElement()[_as](domElement);
        if (placeholder != null) {
          _engine['DomHTMLInputElementExtension|set#placeholder'](element, placeholder);
        }
        if (autofillHint != null) {
          _engine['DomHTMLInputElementExtension|set#name'](element, autofillHint);
          _engine['DomElementExtension|set#id'](element, autofillHint);
          if (autofillHint[$contains]("password")) {
            _engine['DomHTMLInputElementExtension|set#type'](element, "password");
          } else {
            _engine['DomHTMLInputElementExtension|set#type'](element, "text");
          }
        }
        _engine['DomHTMLInputElementExtension|set#autocomplete'](element, (t$36702 = autofillHint, t$36702 == null ? "on" : t$36702));
      } else if (dart.test(_engine.domInstanceOfString(domElement, "HTMLTextAreaElement"))) {
        let element = T$12.DomHTMLTextAreaElement()[_as](domElement);
        if (placeholder != null) {
          _engine['DomHTMLTextAreaElementExtension|set#placeholder'](element, placeholder);
        }
        if (autofillHint != null) {
          _engine['DomHTMLTextAreaElementExtension|set#name'](element, autofillHint);
          _engine['DomElementExtension|set#id'](element, autofillHint);
        }
        _engine['DomElementExtension|setAttribute'](element, "autocomplete", (t$36702$ = autofillHint, t$36702$ == null ? "on" : t$36702$));
      }
    }
  };
  (_engine.AutofillInfo.new = function(opts) {
    let editingState = opts && 'editingState' in opts ? opts.editingState : null;
    if (editingState == null) dart.nullFailed(I[354], 420, 19, "editingState");
    let uniqueIdentifier = opts && 'uniqueIdentifier' in opts ? opts.uniqueIdentifier : null;
    if (uniqueIdentifier == null) dart.nullFailed(I[354], 421, 19, "uniqueIdentifier");
    let autofillHint = opts && 'autofillHint' in opts ? opts.autofillHint : null;
    let textCapitalization = opts && 'textCapitalization' in opts ? opts.textCapitalization : null;
    if (textCapitalization == null) dart.nullFailed(I[354], 423, 19, "textCapitalization");
    let placeholder = opts && 'placeholder' in opts ? opts.placeholder : null;
    this[editingState$] = editingState;
    this[uniqueIdentifier$] = uniqueIdentifier;
    this[autofillHint$] = autofillHint;
    this[textCapitalization$] = textCapitalization;
    this[placeholder$] = placeholder;
    ;
  }).prototype = _engine.AutofillInfo.prototype;
  dart.addRtiResources(_engine.AutofillInfo, ["_engine|AutofillInfo"]);
  dart.setMethodSignature(_engine.AutofillInfo, () => dart.global.Object.setPrototypeOf({applyToDomElement: T$12.DomHTMLElement__Tovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.AutofillInfo))));
  dart.setStaticMethodSignature(_engine.AutofillInfo, () => ['fromFrameworkMessage']);
  dart.setLibraryUri(_engine.AutofillInfo, I[220]);
  dart.setFieldSignature(_engine.AutofillInfo, () => dart.global.Object.setPrototypeOf({
    editingState: {type: T$12.EditingState(), isConst: false, isFinal: true, libraryUri: I[220]},
    uniqueIdentifier: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    textCapitalization: {type: T$12.TextCapitalizationConfig(), isConst: false, isFinal: true, libraryUri: I[220]},
    autofillHint: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    placeholder: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.AutofillInfo))));
  var oldText$ = dart.privateName(_engine, "TextEditingDeltaState.oldText");
  var deltaText$ = dart.privateName(_engine, "TextEditingDeltaState.deltaText");
  var deltaStart$ = dart.privateName(_engine, "TextEditingDeltaState.deltaStart");
  var deltaEnd$ = dart.privateName(_engine, "TextEditingDeltaState.deltaEnd");
  var baseOffset$ = dart.privateName(_engine, "TextEditingDeltaState.baseOffset");
  var extentOffset$ = dart.privateName(_engine, "TextEditingDeltaState.extentOffset");
  var composingOffset$ = dart.privateName(_engine, "TextEditingDeltaState.composingOffset");
  var composingExtent$ = dart.privateName(_engine, "TextEditingDeltaState.composingExtent");
  _engine.TextEditingDeltaState = class TextEditingDeltaState extends core.Object {
    get oldText() {
      return this[oldText$];
    }
    set oldText(value) {
      if (value == null) dart.nullFailed(I[354], 668, 10, "oldText");
      this[oldText$] = value;
    }
    get deltaText() {
      return this[deltaText$];
    }
    set deltaText(value) {
      if (value == null) dart.nullFailed(I[354], 673, 10, "deltaText");
      this[deltaText$] = value;
    }
    get deltaStart() {
      return this[deltaStart$];
    }
    set deltaStart(value) {
      if (value == null) dart.nullFailed(I[354], 678, 7, "deltaStart");
      this[deltaStart$] = value;
    }
    get deltaEnd() {
      return this[deltaEnd$];
    }
    set deltaEnd(value) {
      if (value == null) dart.nullFailed(I[354], 683, 7, "deltaEnd");
      this[deltaEnd$] = value;
    }
    get baseOffset() {
      return this[baseOffset$];
    }
    set baseOffset(value) {
      this[baseOffset$] = value;
    }
    get extentOffset() {
      return this[extentOffset$];
    }
    set extentOffset(value) {
      this[extentOffset$] = value;
    }
    get composingOffset() {
      return this[composingOffset$];
    }
    set composingOffset(value) {
      this[composingOffset$] = value;
    }
    get composingExtent() {
      return this[composingExtent$];
    }
    set composingExtent(value) {
      this[composingExtent$] = value;
    }
    static ['_#new#tearOff'](opts) {
      let oldText = opts && 'oldText' in opts ? opts.oldText : "";
      if (oldText == null) dart.nullFailed(I[354], 533, 10, "oldText");
      let deltaText = opts && 'deltaText' in opts ? opts.deltaText : "";
      if (deltaText == null) dart.nullFailed(I[354], 534, 10, "deltaText");
      let deltaStart = opts && 'deltaStart' in opts ? opts.deltaStart : -1;
      if (deltaStart == null) dart.nullFailed(I[354], 535, 10, "deltaStart");
      let deltaEnd = opts && 'deltaEnd' in opts ? opts.deltaEnd : -1;
      if (deltaEnd == null) dart.nullFailed(I[354], 536, 10, "deltaEnd");
      let baseOffset = opts && 'baseOffset' in opts ? opts.baseOffset : null;
      let extentOffset = opts && 'extentOffset' in opts ? opts.extentOffset : null;
      let composingOffset = opts && 'composingOffset' in opts ? opts.composingOffset : null;
      let composingExtent = opts && 'composingExtent' in opts ? opts.composingExtent : null;
      return new _engine.TextEditingDeltaState.new({oldText: oldText, deltaText: deltaText, deltaStart: deltaStart, deltaEnd: deltaEnd, baseOffset: baseOffset, extentOffset: extentOffset, composingOffset: composingOffset, composingExtent: composingExtent});
    }
    static inferDeltaState(newEditingState, lastEditingState, lastTextEditingDeltaState) {
      let t$36702, t$36702$, t$36702$0;
      if (newEditingState == null) dart.nullFailed(I[354], 563, 61, "newEditingState");
      if (lastTextEditingDeltaState == null) dart.nullFailed(I[354], 563, 132, "lastTextEditingDeltaState");
      let newTextEditingDeltaState = lastTextEditingDeltaState.copyWith();
      let previousSelectionWasCollapsed = (t$36702 = lastEditingState, t$36702 == null ? null : t$36702.baseOffset) == (t$36702$ = lastEditingState, t$36702$ == null ? null : t$36702$.extentOffset);
      let isTextBeingRemoved = newTextEditingDeltaState.deltaText[$isEmpty] && newTextEditingDeltaState.deltaEnd !== -1;
      let isTextBeingChangedAtActiveSelection = newTextEditingDeltaState.deltaText[$isNotEmpty] && !previousSelectionWasCollapsed;
      if (isTextBeingRemoved) {
        let deletedLength = newTextEditingDeltaState.oldText.length - dart.nullCheck(newEditingState.text).length;
        let backwardDeletion = newEditingState.baseOffset != (t$36702$0 = lastEditingState, t$36702$0 == null ? null : t$36702$0.baseOffset);
        if (backwardDeletion) {
          newTextEditingDeltaState.deltaStart = dart.notNull(newTextEditingDeltaState.deltaEnd) - deletedLength;
        } else {
          newTextEditingDeltaState.deltaStart = dart.nullCheck(newEditingState.baseOffset);
          newTextEditingDeltaState.deltaEnd = dart.notNull(newTextEditingDeltaState.deltaStart) + deletedLength;
        }
      } else if (isTextBeingChangedAtActiveSelection) {
        let isPreviousSelectionInverted = dart.nullCheck(dart.nullCheck(lastEditingState).baseOffset) > dart.nullCheck(lastEditingState.extentOffset);
        newTextEditingDeltaState.deltaStart = isPreviousSelectionInverted ? dart.nullCheck(lastEditingState.extentOffset) : dart.nullCheck(lastEditingState.baseOffset);
      }
      let isCurrentlyComposing = newTextEditingDeltaState.composingOffset != null && newTextEditingDeltaState.composingOffset != newTextEditingDeltaState.composingExtent;
      if (newTextEditingDeltaState.deltaText[$isNotEmpty] && previousSelectionWasCollapsed && isCurrentlyComposing) {
        newTextEditingDeltaState.deltaStart = dart.nullCheck(newTextEditingDeltaState.composingOffset);
      }
      let isDeltaRangeEmpty = newTextEditingDeltaState.deltaStart === -1 && newTextEditingDeltaState.deltaStart == newTextEditingDeltaState.deltaEnd;
      if (!isDeltaRangeEmpty) {
        let replacementRange = new ui.TextRange.new({start: newTextEditingDeltaState.deltaStart, end: newTextEditingDeltaState.deltaEnd});
        let textAfterDelta = _engine._replace(newTextEditingDeltaState.oldText, newTextEditingDeltaState.deltaText, replacementRange);
        let isDeltaVerified = textAfterDelta === dart.nullCheck(newEditingState.text);
        if (!isDeltaVerified) {
          let isPeriodInsertion = newTextEditingDeltaState.deltaText[$contains](".");
          let deltaTextPattern = core.RegExp.new(core.RegExp.escape(newTextEditingDeltaState.deltaText));
          for (let match of deltaTextPattern.allMatches(dart.nullCheck(newEditingState.text))) {
            let textAfterMatch = null;
            let actualEnd = null;
            let isMatchWithinOldTextBounds = dart.notNull(match.start) >= 0 && dart.notNull(match.end) <= newTextEditingDeltaState.oldText.length;
            if (!isMatchWithinOldTextBounds) {
              actualEnd = dart.notNull(match.start) + newTextEditingDeltaState.deltaText.length - 1;
              textAfterMatch = _engine._replace(newTextEditingDeltaState.oldText, newTextEditingDeltaState.deltaText, new ui.TextRange.new({start: match.start, end: actualEnd}));
            } else {
              actualEnd = actualEnd = isPeriodInsertion ? dart.notNull(match.end) - 1 : match.end;
              textAfterMatch = _engine._replace(newTextEditingDeltaState.oldText, newTextEditingDeltaState.deltaText, new ui.TextRange.new({start: match.start, end: actualEnd}));
            }
            if (textAfterMatch === dart.nullCheck(newEditingState.text)) {
              newTextEditingDeltaState.deltaStart = match.start;
              newTextEditingDeltaState.deltaEnd = actualEnd;
              break;
            }
          }
        }
      }
      newTextEditingDeltaState.baseOffset = newEditingState.baseOffset;
      newTextEditingDeltaState.extentOffset = newEditingState.extentOffset;
      return newTextEditingDeltaState;
    }
    toFlutter() {
      return new (G.IdentityMapOfString$dynamic()).from(["deltas", G.JSArrayOfMapOfString$dynamic().of([new (G.IdentityMapOfString$dynamic()).from(["oldText", this.oldText, "deltaText", this.deltaText, "deltaStart", this.deltaStart, "deltaEnd", this.deltaEnd, "selectionBase", this.baseOffset, "selectionExtent", this.extentOffset, "composingBase", this.composingOffset, "composingExtent", this.composingExtent])])]);
    }
    copyWith(opts) {
      let t$36702, t$36702$, t$36702$0, t$36702$1, t$36702$2, t$36702$3, t$36702$4, t$36702$5;
      let oldText = opts && 'oldText' in opts ? opts.oldText : null;
      let deltaText = opts && 'deltaText' in opts ? opts.deltaText : null;
      let deltaStart = opts && 'deltaStart' in opts ? opts.deltaStart : null;
      let deltaEnd = opts && 'deltaEnd' in opts ? opts.deltaEnd : null;
      let baseOffset = opts && 'baseOffset' in opts ? opts.baseOffset : null;
      let extentOffset = opts && 'extentOffset' in opts ? opts.extentOffset : null;
      let composingOffset = opts && 'composingOffset' in opts ? opts.composingOffset : null;
      let composingExtent = opts && 'composingExtent' in opts ? opts.composingExtent : null;
      return new _engine.TextEditingDeltaState.new({oldText: (t$36702 = oldText, t$36702 == null ? this.oldText : t$36702), deltaText: (t$36702$ = deltaText, t$36702$ == null ? this.deltaText : t$36702$), deltaStart: (t$36702$0 = deltaStart, t$36702$0 == null ? this.deltaStart : t$36702$0), deltaEnd: (t$36702$1 = deltaEnd, t$36702$1 == null ? this.deltaEnd : t$36702$1), baseOffset: (t$36702$2 = baseOffset, t$36702$2 == null ? this.baseOffset : t$36702$2), extentOffset: (t$36702$3 = extentOffset, t$36702$3 == null ? this.extentOffset : t$36702$3), composingOffset: (t$36702$4 = composingOffset, t$36702$4 == null ? this.composingOffset : t$36702$4), composingExtent: (t$36702$5 = composingExtent, t$36702$5 == null ? this.composingExtent : t$36702$5)});
    }
  };
  (_engine.TextEditingDeltaState.new = function(opts) {
    let oldText = opts && 'oldText' in opts ? opts.oldText : "";
    if (oldText == null) dart.nullFailed(I[354], 533, 10, "oldText");
    let deltaText = opts && 'deltaText' in opts ? opts.deltaText : "";
    if (deltaText == null) dart.nullFailed(I[354], 534, 10, "deltaText");
    let deltaStart = opts && 'deltaStart' in opts ? opts.deltaStart : -1;
    if (deltaStart == null) dart.nullFailed(I[354], 535, 10, "deltaStart");
    let deltaEnd = opts && 'deltaEnd' in opts ? opts.deltaEnd : -1;
    if (deltaEnd == null) dart.nullFailed(I[354], 536, 10, "deltaEnd");
    let baseOffset = opts && 'baseOffset' in opts ? opts.baseOffset : null;
    let extentOffset = opts && 'extentOffset' in opts ? opts.extentOffset : null;
    let composingOffset = opts && 'composingOffset' in opts ? opts.composingOffset : null;
    let composingExtent = opts && 'composingExtent' in opts ? opts.composingExtent : null;
    this[oldText$] = oldText;
    this[deltaText$] = deltaText;
    this[deltaStart$] = deltaStart;
    this[deltaEnd$] = deltaEnd;
    this[baseOffset$] = baseOffset;
    this[extentOffset$] = extentOffset;
    this[composingOffset$] = composingOffset;
    this[composingExtent$] = composingExtent;
    ;
  }).prototype = _engine.TextEditingDeltaState.prototype;
  dart.addRtiResources(_engine.TextEditingDeltaState, ["_engine|TextEditingDeltaState"]);
  dart.setMethodSignature(_engine.TextEditingDeltaState, () => dart.global.Object.setPrototypeOf({
    toFlutter: T$2.VoidToMapOfString$dynamic(),
    copyWith: T$12.__ToTextEditingDeltaState()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextEditingDeltaState))));
  dart.setStaticMethodSignature(_engine.TextEditingDeltaState, () => ['inferDeltaState']);
  dart.setLibraryUri(_engine.TextEditingDeltaState, I[220]);
  dart.setFieldSignature(_engine.TextEditingDeltaState, () => dart.global.Object.setPrototypeOf({
    oldText: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    deltaText: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    deltaStart: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    deltaEnd: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    baseOffset: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    extentOffset: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    composingOffset: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    composingExtent: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextEditingDeltaState))));
  var text$0 = dart.privateName(_engine, "EditingState.text");
  var baseOffset$0 = dart.privateName(_engine, "EditingState.baseOffset");
  var extentOffset$0 = dart.privateName(_engine, "EditingState.extentOffset");
  var composingBaseOffset$ = dart.privateName(_engine, "EditingState.composingBaseOffset");
  var composingExtentOffset$ = dart.privateName(_engine, "EditingState.composingExtentOffset");
  _engine.EditingState = class EditingState extends core.Object {
    get text() {
      return this[text$0];
    }
    set text(value) {
      super.text = value;
    }
    get baseOffset() {
      return this[baseOffset$0];
    }
    set baseOffset(value) {
      super.baseOffset = value;
    }
    get extentOffset() {
      return this[extentOffset$0];
    }
    set extentOffset(value) {
      super.extentOffset = value;
    }
    get composingBaseOffset() {
      return this[composingBaseOffset$];
    }
    set composingBaseOffset(value) {
      super.composingBaseOffset = value;
    }
    get composingExtentOffset() {
      return this[composingExtentOffset$];
    }
    set composingExtentOffset(value) {
      super.composingExtentOffset = value;
    }
    static ['_#new#tearOff'](opts) {
      let text = opts && 'text' in opts ? opts.text : null;
      let baseOffset = opts && 'baseOffset' in opts ? opts.baseOffset : null;
      let extentOffset = opts && 'extentOffset' in opts ? opts.extentOffset : null;
      let composingBaseOffset = opts && 'composingBaseOffset' in opts ? opts.composingBaseOffset : -1;
      if (composingBaseOffset == null) dart.nullFailed(I[354], 741, 12, "composingBaseOffset");
      let composingExtentOffset = opts && 'composingExtentOffset' in opts ? opts.composingExtentOffset : -1;
      if (composingExtentOffset == null) dart.nullFailed(I[354], 742, 12, "composingExtentOffset");
      return new _engine.EditingState.new({text: text, baseOffset: baseOffset, extentOffset: extentOffset, composingBaseOffset: composingBaseOffset, composingExtentOffset: composingExtentOffset});
    }
    static fromFrameworkMessage(flutterEditingState) {
      let t$36702, t$36702$;
      if (flutterEditingState == null) dart.nullFailed(I[354], 769, 28, "flutterEditingState");
      let text = _engine['JsonExtensions|tryString'](flutterEditingState, "text");
      let selectionBase = _engine['JsonExtensions|readInt'](flutterEditingState, "selectionBase");
      let selectionExtent = _engine['JsonExtensions|readInt'](flutterEditingState, "selectionExtent");
      let composingBase = _engine['JsonExtensions|tryInt'](flutterEditingState, "composingBase");
      let composingExtent = _engine['JsonExtensions|tryInt'](flutterEditingState, "composingExtent");
      return new _engine.EditingState.new({text: text, baseOffset: selectionBase, extentOffset: selectionExtent, composingBaseOffset: (t$36702 = composingBase, t$36702 == null ? -1 : t$36702), composingExtentOffset: (t$36702$ = composingExtent, t$36702$ == null ? -1 : t$36702$)});
    }
    static ['_#fromFrameworkMessage#tearOff'](flutterEditingState) {
      if (flutterEditingState == null) dart.nullFailed(I[354], 769, 28, "flutterEditingState");
      return _engine.EditingState.fromFrameworkMessage(flutterEditingState);
    }
    static fromDomElement(domElement) {
      let t$36702, t$36702$, t$36702$0, t$36702$1, t$36702$2, t$36702$3, t$36702$4, t$36702$5;
      if (dart.test(_engine.domInstanceOfString(domElement, "HTMLInputElement"))) {
        let element = T$12.DomHTMLInputElement()[_as](dart.nullCheck(domElement));
        if (_engine['DomHTMLInputElementExtension|get#selectionDirection'](element) === "backward") {
          return new _engine.EditingState.new({text: _engine['DomHTMLInputElementExtension|get#value'](element), baseOffset: (t$36702 = _engine['DomHTMLInputElementExtension|get#selectionEnd'](element), t$36702 == null ? null : t$36702[$toInt]()), extentOffset: (t$36702$ = _engine['DomHTMLInputElementExtension|get#selectionStart'](element), t$36702$ == null ? null : t$36702$[$toInt]())});
        } else {
          return new _engine.EditingState.new({text: _engine['DomHTMLInputElementExtension|get#value'](element), baseOffset: (t$36702$0 = _engine['DomHTMLInputElementExtension|get#selectionStart'](element), t$36702$0 == null ? null : t$36702$0[$toInt]()), extentOffset: (t$36702$1 = _engine['DomHTMLInputElementExtension|get#selectionEnd'](element), t$36702$1 == null ? null : t$36702$1[$toInt]())});
        }
      } else if (dart.test(_engine.domInstanceOfString(domElement, "HTMLTextAreaElement"))) {
        let element = T$12.DomHTMLTextAreaElement()[_as](dart.nullCheck(domElement));
        if (_engine['DomHTMLTextAreaElementExtension|get#selectionDirection'](element) === "backward") {
          return new _engine.EditingState.new({text: _engine['DomHTMLTextAreaElementExtension|get#value'](element), baseOffset: (t$36702$2 = _engine['DomHTMLTextAreaElementExtension|get#selectionEnd'](element), t$36702$2 == null ? null : t$36702$2[$toInt]()), extentOffset: (t$36702$3 = _engine['DomHTMLTextAreaElementExtension|get#selectionStart'](element), t$36702$3 == null ? null : t$36702$3[$toInt]())});
        } else {
          return new _engine.EditingState.new({text: _engine['DomHTMLTextAreaElementExtension|get#value'](element), baseOffset: (t$36702$4 = _engine['DomHTMLTextAreaElementExtension|get#selectionStart'](element), t$36702$4 == null ? null : t$36702$4[$toInt]()), extentOffset: (t$36702$5 = _engine['DomHTMLTextAreaElementExtension|get#selectionEnd'](element), t$36702$5 == null ? null : t$36702$5[$toInt]())});
        }
      } else {
        dart.throw(new core.UnsupportedError.new("Initialized with unsupported input type"));
      }
    }
    static ['_#fromDomElement#tearOff'](domElement) {
      return _engine.EditingState.fromDomElement(domElement);
    }
    get minOffset() {
      let t$36702, t$36702$;
      return math.min(T$.int(), (t$36702 = this.baseOffset, t$36702 == null ? 0 : t$36702), (t$36702$ = this.extentOffset, t$36702$ == null ? 0 : t$36702$));
    }
    get maxOffset() {
      let t$36702, t$36702$;
      return math.max(T$.int(), (t$36702 = this.baseOffset, t$36702 == null ? 0 : t$36702), (t$36702$ = this.extentOffset, t$36702$ == null ? 0 : t$36702$));
    }
    copyWith(opts) {
      let t$36702, t$36702$, t$36702$0, t$36702$1, t$36702$2;
      let text = opts && 'text' in opts ? opts.text : null;
      let baseOffset = opts && 'baseOffset' in opts ? opts.baseOffset : null;
      let extentOffset = opts && 'extentOffset' in opts ? opts.extentOffset : null;
      let composingBaseOffset = opts && 'composingBaseOffset' in opts ? opts.composingBaseOffset : null;
      let composingExtentOffset = opts && 'composingExtentOffset' in opts ? opts.composingExtentOffset : null;
      return new _engine.EditingState.new({text: (t$36702 = text, t$36702 == null ? this.text : t$36702), baseOffset: (t$36702$ = baseOffset, t$36702$ == null ? this.baseOffset : t$36702$), extentOffset: (t$36702$0 = extentOffset, t$36702$0 == null ? this.extentOffset : t$36702$0), composingBaseOffset: (t$36702$1 = composingBaseOffset, t$36702$1 == null ? this.composingBaseOffset : t$36702$1), composingExtentOffset: (t$36702$2 = composingExtentOffset, t$36702$2 == null ? this.composingExtentOffset : t$36702$2)});
    }
    toFlutter() {
      return new (G.IdentityMapOfString$dynamic()).from(["text", this.text, "selectionBase", this.baseOffset, "selectionExtent", this.extentOffset, "composingBase", this.composingBaseOffset, "composingExtent", this.composingExtentOffset]);
    }
    get isValid() {
      return dart.nullCheck(this.baseOffset) >= 0 && dart.nullCheck(this.extentOffset) >= 0;
    }
    get hashCode() {
      return core.Object.hash(this.text, this.baseOffset, this.extentOffset, this.composingBaseOffset, this.composingExtentOffset);
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(this), dart.runtimeType(other))) {
        return false;
      }
      return T$12.EditingState()[_is](other) && other.text == this.text && other.minOffset == this.minOffset && other.maxOffset == this.maxOffset && other.composingBaseOffset == this.composingBaseOffset && other.composingExtentOffset == this.composingExtentOffset;
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        result = "EditingState(\"" + dart.str(this.text) + "\", base:" + dart.str(this.baseOffset) + ", extent:" + dart.str(this.extentOffset) + ", composingBase:" + dart.str(this.composingBaseOffset) + ", composingExtent:" + dart.str(this.composingExtentOffset) + ")";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[354], 899, 12, "() {\n      result = 'EditingState(\"$text\", base:$baseOffset, extent:$extentOffset, composingBase:$composingBaseOffset, composingExtent:$composingExtentOffset)';\n      return true;\n    }()");
      return result;
    }
    applyToDomElement(domElement) {
      let t$36702;
      if (dart.test(_engine.domInstanceOfString(domElement, "HTMLInputElement"))) {
        let element = T$12.DomHTMLInputElement()[_as](dart.nullCheck(domElement));
        _engine['DomHTMLInputElementExtension|set#value'](element, this.text);
        _engine['DomHTMLInputElementExtension|setSelectionRange'](element, this.minOffset, this.maxOffset);
      } else if (dart.test(_engine.domInstanceOfString(domElement, "HTMLTextAreaElement"))) {
        let element = T$12.DomHTMLTextAreaElement()[_as](dart.nullCheck(domElement));
        _engine['DomHTMLTextAreaElementExtension|set#value'](element, this.text);
        _engine['DomHTMLTextAreaElementExtension|setSelectionRange'](element, this.minOffset, this.maxOffset);
      } else {
        dart.throw(new core.UnsupportedError.new("Unsupported DOM element type: <" + dart.str((t$36702 = domElement, t$36702 == null ? null : _engine['DomElementExtension|get#tagName'](t$36702))) + "> (" + dart.str(dart.runtimeType(domElement)) + ")"));
      }
    }
    applyTextToDomElement(domElement) {
      if (dart.test(_engine.domInstanceOfString(domElement, "HTMLInputElement"))) {
        let element = T$12.DomHTMLInputElement()[_as](dart.nullCheck(domElement));
        _engine['DomHTMLInputElementExtension|set#value'](element, this.text);
      } else if (dart.test(_engine.domInstanceOfString(domElement, "HTMLTextAreaElement"))) {
        let element = T$12.DomHTMLTextAreaElement()[_as](dart.nullCheck(domElement));
        _engine['DomHTMLTextAreaElementExtension|set#value'](element, this.text);
      } else {
        dart.throw(new core.UnsupportedError.new("Unsupported DOM element type"));
      }
    }
  };
  (_engine.EditingState.new = function(opts) {
    let t$36702, t$36702$;
    let text = opts && 'text' in opts ? opts.text : null;
    let baseOffset = opts && 'baseOffset' in opts ? opts.baseOffset : null;
    let extentOffset = opts && 'extentOffset' in opts ? opts.extentOffset : null;
    let composingBaseOffset = opts && 'composingBaseOffset' in opts ? opts.composingBaseOffset : -1;
    if (composingBaseOffset == null) dart.nullFailed(I[354], 741, 12, "composingBaseOffset");
    let composingExtentOffset = opts && 'composingExtentOffset' in opts ? opts.composingExtentOffset : -1;
    if (composingExtentOffset == null) dart.nullFailed(I[354], 742, 12, "composingExtentOffset");
    this[text$0] = text;
    this[composingBaseOffset$] = composingBaseOffset;
    this[composingExtentOffset$] = composingExtentOffset;
    this[baseOffset$0] = math.max(T$.int(), 0, (t$36702 = baseOffset, t$36702 == null ? 0 : t$36702));
    this[extentOffset$0] = math.max(T$.int(), 0, (t$36702$ = extentOffset, t$36702$ == null ? 0 : t$36702$));
    ;
  }).prototype = _engine.EditingState.prototype;
  dart.addRtiResources(_engine.EditingState, ["_engine|EditingState"]);
  dart.setMethodSignature(_engine.EditingState, () => dart.global.Object.setPrototypeOf({
    copyWith: T$12.__ToEditingState(),
    toFlutter: T$2.VoidToMapOfString$dynamic(),
    applyToDomElement: T$12.DomHTMLElementNTovoid(),
    applyTextToDomElement: T$12.DomHTMLElementNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EditingState))));
  dart.setStaticMethodSignature(_engine.EditingState, () => ['fromFrameworkMessage', 'fromDomElement']);
  dart.setGetterSignature(_engine.EditingState, () => dart.global.Object.setPrototypeOf({
    minOffset: T$.int(),
    maxOffset: T$.int(),
    isValid: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EditingState))));
  dart.setLibraryUri(_engine.EditingState, I[220]);
  dart.setFieldSignature(_engine.EditingState, () => dart.global.Object.setPrototypeOf({
    text: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    baseOffset: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    extentOffset: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    composingBaseOffset: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    composingExtentOffset: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EditingState))));
  dart.defineExtensionMethods(_engine.EditingState, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.EditingState, ['hashCode']);
  var viewId$7 = dart.privateName(_engine, "InputConfiguration.viewId");
  var inputType$ = dart.privateName(_engine, "InputConfiguration.inputType");
  var inputAction$ = dart.privateName(_engine, "InputConfiguration.inputAction");
  var readOnly$ = dart.privateName(_engine, "InputConfiguration.readOnly");
  var obscureText$ = dart.privateName(_engine, "InputConfiguration.obscureText");
  var autocorrect$ = dart.privateName(_engine, "InputConfiguration.autocorrect");
  var enableDeltaModel$ = dart.privateName(_engine, "InputConfiguration.enableDeltaModel");
  var autofill$ = dart.privateName(_engine, "InputConfiguration.autofill");
  var autofillGroup$ = dart.privateName(_engine, "InputConfiguration.autofillGroup");
  var textCapitalization$0 = dart.privateName(_engine, "InputConfiguration.textCapitalization");
  _engine.InputConfiguration = class InputConfiguration extends core.Object {
    get viewId() {
      return this[viewId$7];
    }
    set viewId(value) {
      super.viewId = value;
    }
    get inputType() {
      return this[inputType$];
    }
    set inputType(value) {
      super.inputType = value;
    }
    get inputAction() {
      return this[inputAction$];
    }
    set inputAction(value) {
      super.inputAction = value;
    }
    get readOnly() {
      return this[readOnly$];
    }
    set readOnly(value) {
      super.readOnly = value;
    }
    get obscureText() {
      return this[obscureText$];
    }
    set obscureText(value) {
      super.obscureText = value;
    }
    get autocorrect() {
      return this[autocorrect$];
    }
    set autocorrect(value) {
      super.autocorrect = value;
    }
    get enableDeltaModel() {
      return this[enableDeltaModel$];
    }
    set enableDeltaModel(value) {
      super.enableDeltaModel = value;
    }
    get autofill() {
      return this[autofill$];
    }
    set autofill(value) {
      super.autofill = value;
    }
    get autofillGroup() {
      return this[autofillGroup$];
    }
    set autofillGroup(value) {
      super.autofillGroup = value;
    }
    get textCapitalization() {
      return this[textCapitalization$0];
    }
    set textCapitalization(value) {
      super.textCapitalization = value;
    }
    static ['_#new#tearOff'](opts) {
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      if (viewId == null) dart.nullFailed(I[354], 962, 19, "viewId");
      let inputType = opts && 'inputType' in opts ? opts.inputType : C[1024] || CT.C1024;
      if (inputType == null) dart.nullFailed(I[354], 963, 10, "inputType");
      let inputAction = opts && 'inputAction' in opts ? opts.inputAction : "TextInputAction.done";
      if (inputAction == null) dart.nullFailed(I[354], 964, 10, "inputAction");
      let obscureText = opts && 'obscureText' in opts ? opts.obscureText : false;
      if (obscureText == null) dart.nullFailed(I[354], 965, 10, "obscureText");
      let readOnly = opts && 'readOnly' in opts ? opts.readOnly : false;
      if (readOnly == null) dart.nullFailed(I[354], 966, 10, "readOnly");
      let autocorrect = opts && 'autocorrect' in opts ? opts.autocorrect : true;
      if (autocorrect == null) dart.nullFailed(I[354], 967, 10, "autocorrect");
      let textCapitalization = opts && 'textCapitalization' in opts ? opts.textCapitalization : C[1037] || CT.C1037;
      if (textCapitalization == null) dart.nullFailed(I[354], 968, 10, "textCapitalization");
      let autofill = opts && 'autofill' in opts ? opts.autofill : null;
      let autofillGroup = opts && 'autofillGroup' in opts ? opts.autofillGroup : null;
      let enableDeltaModel = opts && 'enableDeltaModel' in opts ? opts.enableDeltaModel : false;
      if (enableDeltaModel == null) dart.nullFailed(I[354], 972, 10, "enableDeltaModel");
      return new _engine.InputConfiguration.new({viewId: viewId, inputType: inputType, inputAction: inputAction, obscureText: obscureText, readOnly: readOnly, autocorrect: autocorrect, textCapitalization: textCapitalization, autofill: autofill, autofillGroup: autofillGroup, enableDeltaModel: enableDeltaModel});
    }
    static ['_#fromFrameworkMessage#tearOff'](flutterInputConfiguration) {
      if (flutterInputConfiguration == null) dart.nullFailed(I[354], 976, 28, "flutterInputConfiguration");
      return new _engine.InputConfiguration.fromFrameworkMessage(flutterInputConfiguration);
    }
  };
  (_engine.InputConfiguration.new = function(opts) {
    let viewId = opts && 'viewId' in opts ? opts.viewId : null;
    if (viewId == null) dart.nullFailed(I[354], 962, 19, "viewId");
    let inputType = opts && 'inputType' in opts ? opts.inputType : C[1024] || CT.C1024;
    if (inputType == null) dart.nullFailed(I[354], 963, 10, "inputType");
    let inputAction = opts && 'inputAction' in opts ? opts.inputAction : "TextInputAction.done";
    if (inputAction == null) dart.nullFailed(I[354], 964, 10, "inputAction");
    let obscureText = opts && 'obscureText' in opts ? opts.obscureText : false;
    if (obscureText == null) dart.nullFailed(I[354], 965, 10, "obscureText");
    let readOnly = opts && 'readOnly' in opts ? opts.readOnly : false;
    if (readOnly == null) dart.nullFailed(I[354], 966, 10, "readOnly");
    let autocorrect = opts && 'autocorrect' in opts ? opts.autocorrect : true;
    if (autocorrect == null) dart.nullFailed(I[354], 967, 10, "autocorrect");
    let textCapitalization = opts && 'textCapitalization' in opts ? opts.textCapitalization : C[1037] || CT.C1037;
    if (textCapitalization == null) dart.nullFailed(I[354], 968, 10, "textCapitalization");
    let autofill = opts && 'autofill' in opts ? opts.autofill : null;
    let autofillGroup = opts && 'autofillGroup' in opts ? opts.autofillGroup : null;
    let enableDeltaModel = opts && 'enableDeltaModel' in opts ? opts.enableDeltaModel : false;
    if (enableDeltaModel == null) dart.nullFailed(I[354], 972, 10, "enableDeltaModel");
    this[viewId$7] = viewId;
    this[inputType$] = inputType;
    this[inputAction$] = inputAction;
    this[obscureText$] = obscureText;
    this[readOnly$] = readOnly;
    this[autocorrect$] = autocorrect;
    this[textCapitalization$0] = textCapitalization;
    this[autofill$] = autofill;
    this[autofillGroup$] = autofillGroup;
    this[enableDeltaModel$] = enableDeltaModel;
    ;
  }).prototype = _engine.InputConfiguration.prototype;
  (_engine.InputConfiguration.fromFrameworkMessage = function(flutterInputConfiguration) {
    let t$36702, t$36702$, t$36702$0, t$36702$1, t$36702$2, t$36702$3, t$36702$4, t$36702$5, t$36702$6;
    if (flutterInputConfiguration == null) dart.nullFailed(I[354], 976, 28, "flutterInputConfiguration");
    this[viewId$7] = (t$36702 = _engine['JsonExtensions|tryInt'](flutterInputConfiguration, "viewId"), t$36702 == null ? 0 : t$36702);
    this[inputType$] = _engine.EngineInputType.fromName(_engine['JsonExtensions|readString'](_engine['JsonExtensions|readJson'](flutterInputConfiguration, "inputType"), "name"), {isDecimal: (t$36702$ = _engine['JsonExtensions|tryBool'](_engine['JsonExtensions|readJson'](flutterInputConfiguration, "inputType"), "decimal"), t$36702$ == null ? false : t$36702$), isMultiline: (t$36702$0 = _engine['JsonExtensions|tryBool'](_engine['JsonExtensions|readJson'](flutterInputConfiguration, "inputType"), "isMultiline"), t$36702$0 == null ? false : t$36702$0)});
    this[inputAction$] = (t$36702$1 = _engine['JsonExtensions|tryString'](flutterInputConfiguration, "inputAction"), t$36702$1 == null ? "TextInputAction.done" : t$36702$1);
    this[obscureText$] = (t$36702$2 = _engine['JsonExtensions|tryBool'](flutterInputConfiguration, "obscureText"), t$36702$2 == null ? false : t$36702$2);
    this[readOnly$] = (t$36702$3 = _engine['JsonExtensions|tryBool'](flutterInputConfiguration, "readOnly"), t$36702$3 == null ? false : t$36702$3);
    this[autocorrect$] = (t$36702$4 = _engine['JsonExtensions|tryBool'](flutterInputConfiguration, "autocorrect"), t$36702$4 == null ? true : t$36702$4);
    this[textCapitalization$0] = new _engine.TextCapitalizationConfig.fromInputConfiguration(_engine['JsonExtensions|readString'](flutterInputConfiguration, "textCapitalization"));
    this[autofill$] = dart.test(flutterInputConfiguration[$containsKey]("autofill")) ? _engine.AutofillInfo.fromFrameworkMessage(_engine['JsonExtensions|readJson'](flutterInputConfiguration, "autofill")) : null;
    this[autofillGroup$] = _engine.EngineAutofillForm.fromFrameworkMessage((t$36702$5 = _engine['JsonExtensions|tryInt'](flutterInputConfiguration, "viewId"), t$36702$5 == null ? 0 : t$36702$5), _engine['JsonExtensions|tryJson'](flutterInputConfiguration, "autofill"), _engine['JsonExtensions|tryList'](flutterInputConfiguration, "fields"));
    this[enableDeltaModel$] = (t$36702$6 = _engine['JsonExtensions|tryBool'](flutterInputConfiguration, "enableDeltaModel"), t$36702$6 == null ? false : t$36702$6);
    ;
  }).prototype = _engine.InputConfiguration.prototype;
  dart.addRtiResources(_engine.InputConfiguration, ["_engine|InputConfiguration"]);
  dart.setLibraryUri(_engine.InputConfiguration, I[220]);
  dart.setFieldSignature(_engine.InputConfiguration, () => dart.global.Object.setPrototypeOf({
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    inputType: {type: T$12.EngineInputType(), isConst: false, isFinal: true, libraryUri: I[220]},
    inputAction: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    readOnly: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    obscureText: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    autocorrect: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    enableDeltaModel: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    autofill: {type: T$12.AutofillInfoN(), isConst: false, isFinal: true, libraryUri: I[220]},
    autofillGroup: {type: T$12.EngineAutofillFormN(), isConst: false, isFinal: true, libraryUri: I[220]},
    textCapitalization: {type: T$12.TextCapitalizationConfig(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.InputConfiguration))));
  _engine.TextEditingStrategy = class TextEditingStrategy extends core.Object {};
  (_engine.TextEditingStrategy.new = function() {
    ;
  }).prototype = _engine.TextEditingStrategy.prototype;
  dart.addRtiResources(_engine.TextEditingStrategy, ["_engine|TextEditingStrategy"]);
  dart.setLibraryUri(_engine.TextEditingStrategy, I[220]);
  _engine.GloballyPositionedTextEditingStrategy = class GloballyPositionedTextEditingStrategy extends _engine.DefaultTextEditingStrategy {
    static ['_#new#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[354], 1094, 47, "owner");
      return new _engine.GloballyPositionedTextEditingStrategy.new(owner);
    }
    placeElement() {
      let t$36702, t$36702$;
      t$36702 = this.geometry;
      t$36702 == null ? null : t$36702.applyToDomElement(this.activeDomElement);
      if (dart.test(this.hasAutofillGroup)) {
        this.placeForm();
        t$36702$ = this.lastEditingState;
        t$36702$ == null ? null : t$36702$.applyToDomElement(this.domElement);
        _engine['DomElementExtension|focus'](dart.nullCheck(this.focusedFormElement), {preventScroll: true});
        this.moveFocusToActiveDomElement();
      }
    }
  };
  (_engine.GloballyPositionedTextEditingStrategy.new = function(owner) {
    if (owner == null) dart.nullFailed(I[354], 1094, 47, "owner");
    dart.global.Object.getPrototypeOf(_engine.GloballyPositionedTextEditingStrategy).new.call(this, owner);
    ;
  }).prototype = _engine.GloballyPositionedTextEditingStrategy.prototype;
  dart.addRtiResources(_engine.GloballyPositionedTextEditingStrategy, ["_engine|GloballyPositionedTextEditingStrategy"]);
  dart.setLibraryUri(_engine.GloballyPositionedTextEditingStrategy, I[220]);
  _engine.SafariDesktopTextEditingStrategy = class SafariDesktopTextEditingStrategy extends _engine.DefaultTextEditingStrategy {
    static ['_#new#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[354], 1133, 42, "owner");
      return new _engine.SafariDesktopTextEditingStrategy.new(owner);
    }
    placeElement() {
      let t$36702, t$36702$;
      t$36702 = this.geometry;
      t$36702 == null ? null : t$36702.applyToDomElement(this.activeDomElement);
      if (dart.test(this.hasAutofillGroup)) {
        this.placeForm();
        this.moveFocusToActiveDomElement();
        t$36702$ = this.lastEditingState;
        t$36702$ == null ? null : t$36702$.applyToDomElement(this.activeDomElement);
      }
    }
    initializeElementPlacement() {
      if (this.geometry != null) {
        this.placeElement();
      }
      this.moveFocusToActiveDomElement();
    }
  };
  (_engine.SafariDesktopTextEditingStrategy.new = function(owner) {
    if (owner == null) dart.nullFailed(I[354], 1133, 42, "owner");
    dart.global.Object.getPrototypeOf(_engine.SafariDesktopTextEditingStrategy).new.call(this, owner);
    ;
  }).prototype = _engine.SafariDesktopTextEditingStrategy.prototype;
  dart.addRtiResources(_engine.SafariDesktopTextEditingStrategy, ["_engine|SafariDesktopTextEditingStrategy"]);
  dart.setLibraryUri(_engine.SafariDesktopTextEditingStrategy, I[220]);
  var _canPosition = dart.privateName(_engine, "_canPosition");
  var _schedulePlacement = dart.privateName(_engine, "_schedulePlacement");
  var _addTapListener = dart.privateName(_engine, "_addTapListener");
  _engine.IOSTextEditingStrategy = class IOSTextEditingStrategy extends _engine.GloballyPositionedTextEditingStrategy {
    static ['_#new#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[354], 1593, 32, "owner");
      return new _engine.IOSTextEditingStrategy.new(owner);
    }
    initializeTextEditing(inputConfig, opts) {
      if (inputConfig == null) dart.nullFailed(I[354], 1625, 24, "inputConfig");
      let onChange = opts && 'onChange' in opts ? opts.onChange : null;
      if (onChange == null) dart.nullFailed(I[354], 1626, 31, "onChange");
      let onAction = opts && 'onAction' in opts ? opts.onAction : null;
      if (onAction == null) dart.nullFailed(I[354], 1627, 31, "onAction");
      super.initializeTextEditing(inputConfig, {onChange: onChange, onAction: onAction});
      inputConfig.inputType.configureInputMode(this.activeDomElement);
      if (dart.test(this.hasAutofillGroup)) {
        this.placeForm();
      }
      inputConfig.textCapitalization.setAutocapitalizeAttribute(this.activeDomElement);
    }
    initializeElementPlacement() {
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.activeDomElement, "style"), "translate(-9999px, -9999px)");
      this[_canPosition] = false;
    }
    addEventHandlers() {
      if (this.inputConfiguration.autofillGroup != null) {
        this.subscriptions[$addAll](dart.nullCheck(this.inputConfiguration.autofillGroup).addInputEventListeners());
      }
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "input", dart.bind(this, 'handleChange')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "keydown", dart.bind(this, 'maybeSendAction')));
      this.subscriptions[$add](new _engine.DomSubscription.new(dart.jsInteropNullCheck(dart.global.document), "selectionchange", dart.bind(this, 'handleChange')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "beforeinput", dart.bind(this, 'handleBeforeInput')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "blur", dart.bind(this, 'handleBlur')));
      this.addCompositionEventHandlers(this.activeDomElement);
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "focus", dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[354], 1675, 14, "_");
        this[_schedulePlacement]();
      }, T$10.DomEventTovoid())));
      this[_addTapListener]();
    }
    updateElementPlacement(textGeometry) {
      if (textGeometry == null) dart.nullFailed(I[354], 1684, 52, "textGeometry");
      this.geometry = textGeometry;
      if (dart.test(this.isEnabled) && dart.test(this[_canPosition])) {
        this.placeElement();
      }
    }
    disable() {
      let t$36702;
      super.disable();
      t$36702 = this[_positionInputElementTimer];
      t$36702 == null ? null : t$36702.cancel();
      this[_positionInputElementTimer] = null;
    }
    [_addTapListener]() {
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "click", dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[354], 1716, 67, "_");
        if (dart.test(this[_canPosition])) {
          this.initializeElementPlacement();
          this[_schedulePlacement]();
        }
      }, T$10.DomEventTovoid())));
    }
    [_schedulePlacement]() {
      let t$36702;
      t$36702 = this[_positionInputElementTimer];
      t$36702 == null ? null : t$36702.cancel();
      this[_positionInputElementTimer] = async.Timer.new(_engine.IOSTextEditingStrategy._delayBeforePlacement, dart.fn(() => {
        this[_canPosition] = true;
        this.placeElement();
      }, T$.VoidTovoid()));
    }
    placeElement() {
      let t$36702;
      this.moveFocusToActiveDomElement();
      t$36702 = this.geometry;
      t$36702 == null ? null : t$36702.applyToDomElement(this.activeDomElement);
    }
  };
  (_engine.IOSTextEditingStrategy.new = function(owner) {
    if (owner == null) dart.nullFailed(I[354], 1593, 32, "owner");
    this[_positionInputElementTimer] = null;
    this[_canPosition] = true;
    dart.global.Object.getPrototypeOf(_engine.IOSTextEditingStrategy).new.call(this, owner);
    ;
  }).prototype = _engine.IOSTextEditingStrategy.prototype;
  dart.addRtiResources(_engine.IOSTextEditingStrategy, ["_engine|IOSTextEditingStrategy"]);
  dart.setMethodSignature(_engine.IOSTextEditingStrategy, () => dart.global.Object.setPrototypeOf({
    [_addTapListener]: T$.VoidTovoid(),
    [_schedulePlacement]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.IOSTextEditingStrategy))));
  dart.setLibraryUri(_engine.IOSTextEditingStrategy, I[220]);
  dart.setFieldSignature(_engine.IOSTextEditingStrategy, () => dart.global.Object.setPrototypeOf({
    [_positionInputElementTimer]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_canPosition]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.IOSTextEditingStrategy))));
  dart.setStaticFieldSignature(_engine.IOSTextEditingStrategy, () => ['_delayBeforePlacement']);
  dart.defineLazy(_engine.IOSTextEditingStrategy, {
    /*_engine.IOSTextEditingStrategy._delayBeforePlacement*/get _delayBeforePlacement() {
      return C[974] || CT.C974;
    }
  }, false);
  _engine.AndroidTextEditingStrategy = class AndroidTextEditingStrategy extends _engine.GloballyPositionedTextEditingStrategy {
    static ['_#new#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[354], 1753, 36, "owner");
      return new _engine.AndroidTextEditingStrategy.new(owner);
    }
    initializeTextEditing(inputConfig, opts) {
      if (inputConfig == null) dart.nullFailed(I[354], 1757, 24, "inputConfig");
      let onChange = opts && 'onChange' in opts ? opts.onChange : null;
      if (onChange == null) dart.nullFailed(I[354], 1758, 31, "onChange");
      let onAction = opts && 'onAction' in opts ? opts.onAction : null;
      if (onAction == null) dart.nullFailed(I[354], 1759, 31, "onAction");
      super.initializeTextEditing(inputConfig, {onChange: onChange, onAction: onAction});
      inputConfig.inputType.configureInputMode(this.activeDomElement);
      if (dart.test(this.hasAutofillGroup)) {
        this.placeForm();
      } else {
        _engine._insertEditingElementInView(this.activeDomElement, inputConfig.viewId);
      }
      inputConfig.textCapitalization.setAutocapitalizeAttribute(this.activeDomElement);
    }
    addEventHandlers() {
      if (this.inputConfiguration.autofillGroup != null) {
        this.subscriptions[$addAll](dart.nullCheck(this.inputConfiguration.autofillGroup).addInputEventListeners());
      }
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "input", dart.bind(this, 'handleChange')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "keydown", dart.bind(this, 'maybeSendAction')));
      this.subscriptions[$add](new _engine.DomSubscription.new(dart.jsInteropNullCheck(dart.global.document), "selectionchange", dart.bind(this, 'handleChange')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "beforeinput", dart.bind(this, 'handleBeforeInput')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "blur", dart.bind(this, 'handleBlur')));
      this.addCompositionEventHandlers(this.activeDomElement);
      this.preventDefaultForMouseEvents();
    }
    placeElement() {
      let t$36702;
      this.moveFocusToActiveDomElement();
      t$36702 = this.geometry;
      t$36702 == null ? null : t$36702.applyToDomElement(this.activeDomElement);
    }
  };
  (_engine.AndroidTextEditingStrategy.new = function(owner) {
    if (owner == null) dart.nullFailed(I[354], 1753, 36, "owner");
    dart.global.Object.getPrototypeOf(_engine.AndroidTextEditingStrategy).new.call(this, owner);
    ;
  }).prototype = _engine.AndroidTextEditingStrategy.prototype;
  dart.addRtiResources(_engine.AndroidTextEditingStrategy, ["_engine|AndroidTextEditingStrategy"]);
  dart.setLibraryUri(_engine.AndroidTextEditingStrategy, I[220]);
  _engine.FirefoxTextEditingStrategy = class FirefoxTextEditingStrategy extends _engine.GloballyPositionedTextEditingStrategy {
    static ['_#new#tearOff'](owner) {
      if (owner == null) dart.nullFailed(I[354], 1815, 36, "owner");
      return new _engine.FirefoxTextEditingStrategy.new(owner);
    }
    initializeTextEditing(inputConfig, opts) {
      if (inputConfig == null) dart.nullFailed(I[354], 1819, 24, "inputConfig");
      let onChange = opts && 'onChange' in opts ? opts.onChange : null;
      if (onChange == null) dart.nullFailed(I[354], 1820, 31, "onChange");
      let onAction = opts && 'onAction' in opts ? opts.onAction : null;
      if (onAction == null) dart.nullFailed(I[354], 1821, 31, "onAction");
      super.initializeTextEditing(inputConfig, {onChange: onChange, onAction: onAction});
      if (dart.test(this.hasAutofillGroup)) {
        this.placeForm();
      }
    }
    addEventHandlers() {
      if (this.inputConfiguration.autofillGroup != null) {
        this.subscriptions[$addAll](dart.nullCheck(this.inputConfiguration.autofillGroup).addInputEventListeners());
      }
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "input", dart.bind(this, 'handleChange')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "keydown", dart.bind(this, 'maybeSendAction')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "beforeinput", dart.bind(this, 'handleBeforeInput')));
      this.addCompositionEventHandlers(this.activeDomElement);
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "keyup", dart.fn(event => {
        if (event == null) dart.nullFailed(I[354], 1868, 23, "event");
        this.handleChange(event);
      }, T$10.DomEventTovoid())));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "select", dart.bind(this, 'handleChange')));
      this.subscriptions[$add](new _engine.DomSubscription.new(this.activeDomElement, "blur", dart.bind(this, 'handleBlur')));
      this.preventDefaultForMouseEvents();
    }
    placeElement() {
      let t$36702, t$36702$;
      this.moveFocusToActiveDomElement();
      t$36702 = this.geometry;
      t$36702 == null ? null : t$36702.applyToDomElement(this.activeDomElement);
      t$36702$ = this.lastEditingState;
      t$36702$ == null ? null : t$36702$.applyToDomElement(this.activeDomElement);
    }
  };
  (_engine.FirefoxTextEditingStrategy.new = function(owner) {
    if (owner == null) dart.nullFailed(I[354], 1815, 36, "owner");
    dart.global.Object.getPrototypeOf(_engine.FirefoxTextEditingStrategy).new.call(this, owner);
    ;
  }).prototype = _engine.FirefoxTextEditingStrategy.prototype;
  dart.addRtiResources(_engine.FirefoxTextEditingStrategy, ["_engine|FirefoxTextEditingStrategy"]);
  dart.setLibraryUri(_engine.FirefoxTextEditingStrategy, I[220]);
  _engine.TextInputCommand = class TextInputCommand extends core.Object {};
  (_engine.TextInputCommand.new = function() {
    ;
  }).prototype = _engine.TextInputCommand.prototype;
  dart.addRtiResources(_engine.TextInputCommand, ["_engine|TextInputCommand"]);
  dart.setLibraryUri(_engine.TextInputCommand, I[220]);
  var clientId$ = dart.privateName(_engine, "TextInputSetClient.clientId");
  var configuration$ = dart.privateName(_engine, "TextInputSetClient.configuration");
  var _clientId = dart.privateName(_engine, "_clientId");
  _engine.TextInputSetClient = class TextInputSetClient extends _engine.TextInputCommand {
    get clientId() {
      return this[clientId$];
    }
    set clientId(value) {
      super.clientId = value;
    }
    get configuration() {
      return this[configuration$];
    }
    set configuration(value) {
      super.configuration = value;
    }
    static ['_#new#tearOff'](opts) {
      let clientId = opts && 'clientId' in opts ? opts.clientId : null;
      if (clientId == null) dart.nullFailed(I[354], 1909, 19, "clientId");
      let configuration = opts && 'configuration' in opts ? opts.configuration : null;
      if (configuration == null) dart.nullFailed(I[354], 1910, 19, "configuration");
      return new _engine.TextInputSetClient.new({clientId: clientId, configuration: configuration});
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 1917, 30, "textEditing");
      let clientIdChanged = textEditing[_clientId] != null && textEditing[_clientId] != this.clientId;
      if (clientIdChanged && dart.test(textEditing.isEditing)) {
        textEditing.stopEditing();
      }
      textEditing[_clientId] = this.clientId;
      textEditing.configuration = this.configuration;
    }
  };
  (_engine.TextInputSetClient.new = function(opts) {
    let clientId = opts && 'clientId' in opts ? opts.clientId : null;
    if (clientId == null) dart.nullFailed(I[354], 1909, 19, "clientId");
    let configuration = opts && 'configuration' in opts ? opts.configuration : null;
    if (configuration == null) dart.nullFailed(I[354], 1910, 19, "configuration");
    this[clientId$] = clientId;
    this[configuration$] = configuration;
    dart.global.Object.getPrototypeOf(_engine.TextInputSetClient).new.call(this);
    ;
  }).prototype = _engine.TextInputSetClient.prototype;
  dart.addRtiResources(_engine.TextInputSetClient, ["_engine|TextInputSetClient"]);
  dart.setMethodSignature(_engine.TextInputSetClient, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputSetClient))));
  dart.setLibraryUri(_engine.TextInputSetClient, I[220]);
  dart.setFieldSignature(_engine.TextInputSetClient, () => dart.global.Object.setPrototypeOf({
    clientId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    configuration: {type: T$12.InputConfiguration(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextInputSetClient))));
  _engine.TextInputUpdateConfig = class TextInputUpdateConfig extends _engine.TextInputCommand {
    static ['_#new#tearOff']() {
      return new _engine.TextInputUpdateConfig.new();
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 1953, 30, "textEditing");
      textEditing.strategy.applyConfiguration(dart.nullCheck(textEditing.configuration));
    }
  };
  (_engine.TextInputUpdateConfig.new = function() {
    dart.global.Object.getPrototypeOf(_engine.TextInputUpdateConfig).new.call(this);
    ;
  }).prototype = _engine.TextInputUpdateConfig.prototype;
  dart.addRtiResources(_engine.TextInputUpdateConfig, ["_engine|TextInputUpdateConfig"]);
  dart.setMethodSignature(_engine.TextInputUpdateConfig, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputUpdateConfig))));
  dart.setLibraryUri(_engine.TextInputUpdateConfig, I[220]);
  var state$2 = dart.privateName(_engine, "TextInputSetEditingState.state");
  _engine.TextInputSetEditingState = class TextInputSetEditingState extends _engine.TextInputCommand {
    get state() {
      return this[state$2];
    }
    set state(value) {
      super.state = value;
    }
    static ['_#new#tearOff'](opts) {
      let state = opts && 'state' in opts ? opts.state : null;
      if (state == null) dart.nullFailed(I[354], 1961, 19, "state");
      return new _engine.TextInputSetEditingState.new({state: state});
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 1967, 30, "textEditing");
      textEditing.strategy.setEditingState(this.state);
    }
  };
  (_engine.TextInputSetEditingState.new = function(opts) {
    let state = opts && 'state' in opts ? opts.state : null;
    if (state == null) dart.nullFailed(I[354], 1961, 19, "state");
    this[state$2] = state;
    dart.global.Object.getPrototypeOf(_engine.TextInputSetEditingState).new.call(this);
    ;
  }).prototype = _engine.TextInputSetEditingState.prototype;
  dart.addRtiResources(_engine.TextInputSetEditingState, ["_engine|TextInputSetEditingState"]);
  dart.setMethodSignature(_engine.TextInputSetEditingState, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputSetEditingState))));
  dart.setLibraryUri(_engine.TextInputSetEditingState, I[220]);
  dart.setFieldSignature(_engine.TextInputSetEditingState, () => dart.global.Object.setPrototypeOf({state: {type: T$12.EditingState(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextInputSetEditingState))));
  var _startEditing = dart.privateName(_engine, "_startEditing");
  _engine.TextInputShow = class TextInputShow extends _engine.TextInputCommand {
    static ['_#new#tearOff']() {
      return new _engine.TextInputShow.new();
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 1977, 30, "textEditing");
      if (!dart.test(textEditing.isEditing)) {
        textEditing[_startEditing]();
      }
    }
  };
  (_engine.TextInputShow.new = function() {
    dart.global.Object.getPrototypeOf(_engine.TextInputShow).new.call(this);
    ;
  }).prototype = _engine.TextInputShow.prototype;
  dart.addRtiResources(_engine.TextInputShow, ["_engine|TextInputShow"]);
  dart.setMethodSignature(_engine.TextInputShow, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputShow))));
  dart.setLibraryUri(_engine.TextInputShow, I[220]);
  var geometry$ = dart.privateName(_engine, "TextInputSetEditableSizeAndTransform.geometry");
  _engine.TextInputSetEditableSizeAndTransform = class TextInputSetEditableSizeAndTransform extends _engine.TextInputCommand {
    get geometry() {
      return this[geometry$];
    }
    set geometry(value) {
      super.geometry = value;
    }
    static ['_#new#tearOff'](opts) {
      let geometry = opts && 'geometry' in opts ? opts.geometry : null;
      if (geometry == null) dart.nullFailed(I[354], 1987, 19, "geometry");
      return new _engine.TextInputSetEditableSizeAndTransform.new({geometry: geometry});
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 1993, 30, "textEditing");
      textEditing.strategy.updateElementPlacement(this.geometry);
    }
  };
  (_engine.TextInputSetEditableSizeAndTransform.new = function(opts) {
    let geometry = opts && 'geometry' in opts ? opts.geometry : null;
    if (geometry == null) dart.nullFailed(I[354], 1987, 19, "geometry");
    this[geometry$] = geometry;
    dart.global.Object.getPrototypeOf(_engine.TextInputSetEditableSizeAndTransform).new.call(this);
    ;
  }).prototype = _engine.TextInputSetEditableSizeAndTransform.prototype;
  dart.addRtiResources(_engine.TextInputSetEditableSizeAndTransform, ["_engine|TextInputSetEditableSizeAndTransform"]);
  dart.setMethodSignature(_engine.TextInputSetEditableSizeAndTransform, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputSetEditableSizeAndTransform))));
  dart.setLibraryUri(_engine.TextInputSetEditableSizeAndTransform, I[220]);
  dart.setFieldSignature(_engine.TextInputSetEditableSizeAndTransform, () => dart.global.Object.setPrototypeOf({geometry: {type: T$12.EditableTextGeometry(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextInputSetEditableSizeAndTransform))));
  var style$3 = dart.privateName(_engine, "TextInputSetStyle.style");
  _engine.TextInputSetStyle = class TextInputSetStyle extends _engine.TextInputCommand {
    get style() {
      return this[style$3];
    }
    set style(value) {
      super.style = value;
    }
    static ['_#new#tearOff'](opts) {
      let style = opts && 'style' in opts ? opts.style : null;
      if (style == null) dart.nullFailed(I[354], 2001, 19, "style");
      return new _engine.TextInputSetStyle.new({style: style});
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 2007, 30, "textEditing");
      textEditing.strategy.updateElementStyle(this.style);
    }
  };
  (_engine.TextInputSetStyle.new = function(opts) {
    let style = opts && 'style' in opts ? opts.style : null;
    if (style == null) dart.nullFailed(I[354], 2001, 19, "style");
    this[style$3] = style;
    dart.global.Object.getPrototypeOf(_engine.TextInputSetStyle).new.call(this);
    ;
  }).prototype = _engine.TextInputSetStyle.prototype;
  dart.addRtiResources(_engine.TextInputSetStyle, ["_engine|TextInputSetStyle"]);
  dart.setMethodSignature(_engine.TextInputSetStyle, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputSetStyle))));
  dart.setLibraryUri(_engine.TextInputSetStyle, I[220]);
  dart.setFieldSignature(_engine.TextInputSetStyle, () => dart.global.Object.setPrototypeOf({style: {type: T$12.EditableTextStyle(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextInputSetStyle))));
  _engine.TextInputClearClient = class TextInputClearClient extends _engine.TextInputCommand {
    static ['_#new#tearOff']() {
      return new _engine.TextInputClearClient.new();
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 2017, 30, "textEditing");
      if (dart.test(textEditing.isEditing)) {
        textEditing.stopEditing();
      }
    }
  };
  (_engine.TextInputClearClient.new = function() {
    dart.global.Object.getPrototypeOf(_engine.TextInputClearClient).new.call(this);
    ;
  }).prototype = _engine.TextInputClearClient.prototype;
  dart.addRtiResources(_engine.TextInputClearClient, ["_engine|TextInputClearClient"]);
  dart.setMethodSignature(_engine.TextInputClearClient, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputClearClient))));
  dart.setLibraryUri(_engine.TextInputClearClient, I[220]);
  _engine.TextInputHide = class TextInputHide extends _engine.TextInputCommand {
    static ['_#new#tearOff']() {
      return new _engine.TextInputHide.new();
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 2029, 30, "textEditing");
      if (dart.test(textEditing.isEditing)) {
        textEditing.stopEditing();
      }
    }
  };
  (_engine.TextInputHide.new = function() {
    dart.global.Object.getPrototypeOf(_engine.TextInputHide).new.call(this);
    ;
  }).prototype = _engine.TextInputHide.prototype;
  dart.addRtiResources(_engine.TextInputHide, ["_engine|TextInputHide"]);
  dart.setMethodSignature(_engine.TextInputHide, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputHide))));
  dart.setLibraryUri(_engine.TextInputHide, I[220]);
  _engine.TextInputSetMarkedTextRect = class TextInputSetMarkedTextRect extends _engine.TextInputCommand {
    static ['_#new#tearOff']() {
      return new _engine.TextInputSetMarkedTextRect.new();
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 2040, 30, "textEditing");
    }
  };
  (_engine.TextInputSetMarkedTextRect.new = function() {
    dart.global.Object.getPrototypeOf(_engine.TextInputSetMarkedTextRect).new.call(this);
    ;
  }).prototype = _engine.TextInputSetMarkedTextRect.prototype;
  dart.addRtiResources(_engine.TextInputSetMarkedTextRect, ["_engine|TextInputSetMarkedTextRect"]);
  dart.setMethodSignature(_engine.TextInputSetMarkedTextRect, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputSetMarkedTextRect))));
  dart.setLibraryUri(_engine.TextInputSetMarkedTextRect, I[220]);
  _engine.TextInputSetCaretRect = class TextInputSetCaretRect extends _engine.TextInputCommand {
    static ['_#new#tearOff']() {
      return new _engine.TextInputSetCaretRect.new();
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 2050, 30, "textEditing");
    }
  };
  (_engine.TextInputSetCaretRect.new = function() {
    dart.global.Object.getPrototypeOf(_engine.TextInputSetCaretRect).new.call(this);
    ;
  }).prototype = _engine.TextInputSetCaretRect.prototype;
  dart.addRtiResources(_engine.TextInputSetCaretRect, ["_engine|TextInputSetCaretRect"]);
  dart.setMethodSignature(_engine.TextInputSetCaretRect, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputSetCaretRect))));
  dart.setLibraryUri(_engine.TextInputSetCaretRect, I[220]);
  _engine.TextInputRequestAutofill = class TextInputRequestAutofill extends _engine.TextInputCommand {
    static ['_#new#tearOff']() {
      return new _engine.TextInputRequestAutofill.new();
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 2059, 30, "textEditing");
    }
  };
  (_engine.TextInputRequestAutofill.new = function() {
    dart.global.Object.getPrototypeOf(_engine.TextInputRequestAutofill).new.call(this);
    ;
  }).prototype = _engine.TextInputRequestAutofill.prototype;
  dart.addRtiResources(_engine.TextInputRequestAutofill, ["_engine|TextInputRequestAutofill"]);
  dart.setMethodSignature(_engine.TextInputRequestAutofill, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputRequestAutofill))));
  dart.setLibraryUri(_engine.TextInputRequestAutofill, I[220]);
  var saveForm$ = dart.privateName(_engine, "TextInputFinishAutofillContext.saveForm");
  _engine.TextInputFinishAutofillContext = class TextInputFinishAutofillContext extends _engine.TextInputCommand {
    get saveForm() {
      return this[saveForm$];
    }
    set saveForm(value) {
      super.saveForm = value;
    }
    static ['_#new#tearOff'](opts) {
      let saveForm = opts && 'saveForm' in opts ? opts.saveForm : null;
      if (saveForm == null) dart.nullFailed(I[354], 2066, 19, "saveForm");
      return new _engine.TextInputFinishAutofillContext.new({saveForm: saveForm});
    }
    run(textEditing) {
      if (textEditing == null) dart.nullFailed(I[354], 2072, 30, "textEditing");
      textEditing.sendTextConnectionClosedToFrameworkIfAny();
      if (dart.test(this.saveForm)) {
        _engine.saveForms();
      }
      _engine.cleanForms();
    }
  };
  (_engine.TextInputFinishAutofillContext.new = function(opts) {
    let saveForm = opts && 'saveForm' in opts ? opts.saveForm : null;
    if (saveForm == null) dart.nullFailed(I[354], 2066, 19, "saveForm");
    this[saveForm$] = saveForm;
    dart.global.Object.getPrototypeOf(_engine.TextInputFinishAutofillContext).new.call(this);
    ;
  }).prototype = _engine.TextInputFinishAutofillContext.prototype;
  dart.addRtiResources(_engine.TextInputFinishAutofillContext, ["_engine|TextInputFinishAutofillContext"]);
  dart.setMethodSignature(_engine.TextInputFinishAutofillContext, () => dart.global.Object.setPrototypeOf({run: T$12.HybridTextEditingTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextInputFinishAutofillContext))));
  dart.setLibraryUri(_engine.TextInputFinishAutofillContext, I[220]);
  dart.setFieldSignature(_engine.TextInputFinishAutofillContext, () => dart.global.Object.setPrototypeOf({saveForm: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextInputFinishAutofillContext))));
  var implementation$ = dart.privateName(_engine, "TextEditingChannel.implementation");
  _engine.TextEditingChannel = class TextEditingChannel extends core.Object {
    get implementation() {
      return this[implementation$];
    }
    set implementation(value) {
      super.implementation = value;
    }
    static ['_#new#tearOff'](implementation) {
      if (implementation == null) dart.nullFailed(I[354], 2112, 27, "implementation");
      return new _engine.TextEditingChannel.new(implementation);
    }
    handleTextInput(data, callback) {
      let codec = C[847] || CT.C847;
      let call = codec.decodeMethodCall(data);
      let command = null;
      switch (call.method) {
        case "TextInput.setClient":
          {
            let args = T$.ListOfObjectN()[_as](dart.nullCheck(call.arguments));
            command = new _engine.TextInputSetClient.new({clientId: T$.int()[_as](dart.nullCheck(args[$_get](0))), configuration: new _engine.InputConfiguration.fromFrameworkMessage(T$10.MapOfString$ObjectN()[_as](dart.nullCheck(args[$_get](1))))});
            break;
          }
        case "TextInput.updateConfig":
          {
            this.implementation.configuration = new _engine.InputConfiguration.fromFrameworkMessage(T$2.MapOfString$dynamic()[_as](call.arguments));
            command = C[1038] || CT.C1038;
            break;
          }
        case "TextInput.setEditingState":
          {
            command = new _engine.TextInputSetEditingState.new({state: _engine.EditingState.fromFrameworkMessage(T$2.MapOfString$dynamic()[_as](call.arguments))});
            break;
          }
        case "TextInput.show":
          {
            command = C[1039] || CT.C1039;
            break;
          }
        case "TextInput.setEditableSizeAndTransform":
          {
            command = new _engine.TextInputSetEditableSizeAndTransform.new({geometry: _engine.EditableTextGeometry.fromFrameworkMessage(T$2.MapOfString$dynamic()[_as](call.arguments))});
            break;
          }
        case "TextInput.setStyle":
          {
            command = new _engine.TextInputSetStyle.new({style: _engine.EditableTextStyle.fromFrameworkMessage(T$2.MapOfString$dynamic()[_as](call.arguments))});
            break;
          }
        case "TextInput.clearClient":
          {
            command = C[1040] || CT.C1040;
            break;
          }
        case "TextInput.hide":
          {
            command = C[1041] || CT.C1041;
            break;
          }
        case "TextInput.requestAutofill":
          {
            command = C[1042] || CT.C1042;
            break;
          }
        case "TextInput.finishAutofillContext":
          {
            command = new _engine.TextInputFinishAutofillContext.new({saveForm: T$.bool()[_as](call.arguments)});
            break;
          }
        case "TextInput.setMarkedTextRect":
          {
            command = C[1043] || CT.C1043;
            break;
          }
        case "TextInput.setCaretRect":
          {
            command = C[1044] || CT.C1044;
            break;
          }
        default:
          {
            _engine.EnginePlatformDispatcher.instance.replyToPlatformMessage(callback, null);
            return;
          }
      }
      this.implementation.acceptCommand(command, dart.fn(() => {
        _engine.EnginePlatformDispatcher.instance.replyToPlatformMessage(callback, codec.encodeSuccessEnvelope(true));
      }, T$.VoidTovoid()));
    }
    updateEditingState(clientId, editingState) {
      _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/textinput", (C[847] || CT.C847).encodeMethodCall(new _engine.MethodCall.new("TextInputClient.updateEditingState", [clientId, dart.nullCheck(editingState).toFlutter()])), C[1036] || CT.C1036);
    }
    updateEditingStateWithDelta(clientId, editingDeltaState) {
      _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/textinput", (C[847] || CT.C847).encodeMethodCall(new _engine.MethodCall.new("TextInputClient.updateEditingStateWithDeltas", [clientId, dart.nullCheck(editingDeltaState).toFlutter()])), C[1036] || CT.C1036);
    }
    performAction(clientId, inputAction) {
      _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/textinput", (C[847] || CT.C847).encodeMethodCall(new _engine.MethodCall.new("TextInputClient.performAction", [clientId, inputAction])), C[1036] || CT.C1036);
    }
    onConnectionClosed(clientId) {
      _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/textinput", (C[847] || CT.C847).encodeMethodCall(new _engine.MethodCall.new("TextInputClient.onConnectionClosed", [clientId])), C[1036] || CT.C1036);
    }
  };
  (_engine.TextEditingChannel.new = function(implementation) {
    if (implementation == null) dart.nullFailed(I[354], 2112, 27, "implementation");
    this[implementation$] = implementation;
    ;
  }).prototype = _engine.TextEditingChannel.prototype;
  dart.addRtiResources(_engine.TextEditingChannel, ["_engine|TextEditingChannel"]);
  dart.setMethodSignature(_engine.TextEditingChannel, () => dart.global.Object.setPrototypeOf({
    handleTextInput: T$12.ByteDataNAndFnTovoid$1(),
    updateEditingState: T$12.intNAndEditingStateNTovoid(),
    updateEditingStateWithDelta: T$12.intNAndTextEditingDeltaStateNTovoid(),
    performAction: T$12.intNAndStringNTovoid$1(),
    onConnectionClosed: T$4.intNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TextEditingChannel))));
  dart.setLibraryUri(_engine.TextEditingChannel, I[220]);
  dart.setFieldSignature(_engine.TextEditingChannel, () => dart.global.Object.setPrototypeOf({implementation: {type: T$12.HybridTextEditing(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.TextEditingChannel))));
  var isEditing = dart.privateName(_engine, "HybridTextEditing.isEditing");
  var configuration$0 = dart.privateName(_engine, "HybridTextEditing.configuration");
  var debugTextEditingStrategyOverride = dart.privateName(_engine, "HybridTextEditing.debugTextEditingStrategyOverride");
  var __HybridTextEditing_channel = dart.privateName(_engine, "_#HybridTextEditing#channel");
  var __HybridTextEditing_channel_isSet = dart.privateName(_engine, "_#HybridTextEditing#channel#isSet");
  var __HybridTextEditing_strategy = dart.privateName(_engine, "_#HybridTextEditing#strategy");
  var __HybridTextEditing_strategy_isSet = dart.privateName(_engine, "_#HybridTextEditing#strategy#isSet");
  _engine.HybridTextEditing = class HybridTextEditing extends core.Object {
    get isEditing() {
      return this[isEditing];
    }
    set isEditing(value) {
      if (value == null) dart.nullFailed(I[354], 2293, 8, "isEditing");
      this[isEditing] = value;
    }
    get configuration() {
      return this[configuration$0];
    }
    set configuration(value) {
      this[configuration$0] = value;
    }
    get debugTextEditingStrategyOverride() {
      return this[debugTextEditingStrategyOverride];
    }
    set debugTextEditingStrategyOverride(value) {
      this[debugTextEditingStrategyOverride] = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.HybridTextEditing.new();
    }
    get channel() {
      let t$36703;
      if (!dart.test(this[__HybridTextEditing_channel_isSet])) {
        let t$36702 = new _engine.TextEditingChannel.new(this);
        if (dart.test(this[__HybridTextEditing_channel_isSet])) dart.throw(new _internal.LateError.fieldADI("channel"));
        this[__HybridTextEditing_channel] = t$36702;
        this[__HybridTextEditing_channel_isSet] = true;
      }
      t$36703 = this[__HybridTextEditing_channel];
      return t$36703;
    }
    get strategy() {
      let t$36704, t$36704$;
      if (!dart.test(this[__HybridTextEditing_strategy_isSet])) {
        let t$36703 = (t$36704 = this.debugTextEditingStrategyOverride, t$36704 == null ? dart.test(_engine.EngineSemantics.instance.semanticsEnabled) ? _engine.SemanticsTextEditingStrategy.ensureInitialized(this) : _engine.createDefaultTextEditingStrategy(this) : t$36704);
        if (dart.test(this[__HybridTextEditing_strategy_isSet])) dart.throw(new _internal.LateError.fieldADI("strategy"));
        this[__HybridTextEditing_strategy] = t$36703;
        this[__HybridTextEditing_strategy_isSet] = true;
      }
      t$36704$ = this[__HybridTextEditing_strategy];
      return t$36704$;
    }
    acceptCommand(command, callback) {
      if (command == null) dart.nullFailed(I[354], 2306, 39, "command");
      if (callback == null) dart.nullFailed(I[354], 2306, 64, "callback");
      if (dart.test(_engine._debugPrintTextInputCommands)) {
        core.print("flutter/textinput channel command: " + dart.str(dart.runtimeType(command)));
      }
      command.run(this);
      callback();
    }
    [_startEditing]() {
      if (!!dart.test(this.isEditing)) dart.assertFailed(null, I[354], 2315, 12, "!isEditing");
      this.isEditing = true;
      this.strategy.enable(dart.nullCheck(this.configuration), {onChange: dart.fn((editingState, editingDeltaState) => {
          if (dart.test(dart.nullCheck(this.configuration).enableDeltaModel)) {
            this.channel.updateEditingStateWithDelta(this[_clientId], editingDeltaState);
          } else {
            this.channel.updateEditingState(this[_clientId], editingState);
          }
        }, T$12.EditingStateNAndTextEditingDeltaStateNTovoid()), onAction: dart.fn(inputAction => {
          this.channel.performAction(this[_clientId], inputAction);
        }, T$2.StringNTovoid())});
    }
    stopEditing() {
      if (!dart.test(this.isEditing)) dart.assertFailed(null, I[354], 2333, 12, "isEditing");
      this.isEditing = false;
      this.strategy.disable();
    }
    sendTextConnectionClosedToFrameworkIfAny() {
      if (dart.test(this.isEditing)) {
        this.stopEditing();
        this.channel.onConnectionClosed(this[_clientId]);
      }
    }
  };
  (_engine.HybridTextEditing.new = function() {
    this[__HybridTextEditing_channel] = null;
    this[__HybridTextEditing_channel_isSet] = false;
    this[_clientId] = null;
    this[isEditing] = false;
    this[configuration$0] = null;
    this[debugTextEditingStrategyOverride] = null;
    this[__HybridTextEditing_strategy] = null;
    this[__HybridTextEditing_strategy_isSet] = false;
    ;
  }).prototype = _engine.HybridTextEditing.prototype;
  dart.addRtiResources(_engine.HybridTextEditing, ["_engine|HybridTextEditing"]);
  dart.setMethodSignature(_engine.HybridTextEditing, () => dart.global.Object.setPrototypeOf({
    acceptCommand: T$12.TextInputCommandAndFnTovoid(),
    [_startEditing]: T$.VoidTovoid(),
    stopEditing: T$.VoidTovoid(),
    sendTextConnectionClosedToFrameworkIfAny: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HybridTextEditing))));
  dart.setGetterSignature(_engine.HybridTextEditing, () => dart.global.Object.setPrototypeOf({
    channel: T$12.TextEditingChannel(),
    strategy: T$12.DefaultTextEditingStrategy()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.HybridTextEditing))));
  dart.setLibraryUri(_engine.HybridTextEditing, I[220]);
  dart.setFieldSignature(_engine.HybridTextEditing, () => dart.global.Object.setPrototypeOf({
    [__HybridTextEditing_channel]: {type: T$12.TextEditingChannelN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__HybridTextEditing_channel_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_clientId]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    isEditing: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    configuration: {type: T$12.InputConfigurationN(), isConst: false, isFinal: false, libraryUri: I[220]},
    debugTextEditingStrategyOverride: {type: T$12.DefaultTextEditingStrategyN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__HybridTextEditing_strategy]: {type: T$12.DefaultTextEditingStrategyN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__HybridTextEditing_strategy_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.HybridTextEditing))));
  dart.setStaticFieldSignature(_engine.HybridTextEditing, () => ['textEditingClass']);
  dart.defineLazy(_engine.HybridTextEditing, {
    /*_engine.HybridTextEditing.textEditingClass*/get textEditingClass() {
      return "flt-text-editing";
    }
  }, false);
  var fontSize$3 = dart.privateName(_engine, "EditableTextStyle.fontSize");
  var fontWeight$2 = dart.privateName(_engine, "EditableTextStyle.fontWeight");
  var fontFamily$2 = dart.privateName(_engine, "EditableTextStyle.fontFamily");
  var textAlign$0 = dart.privateName(_engine, "EditableTextStyle.textAlign");
  var textDirection$3 = dart.privateName(_engine, "EditableTextStyle.textDirection");
  _engine.EditableTextStyle = class EditableTextStyle extends core.Object {
    get fontSize() {
      return this[fontSize$3];
    }
    set fontSize(value) {
      super.fontSize = value;
    }
    get fontWeight() {
      return this[fontWeight$2];
    }
    set fontWeight(value) {
      super.fontWeight = value;
    }
    get fontFamily() {
      return this[fontFamily$2];
    }
    set fontFamily(value) {
      super.fontFamily = value;
    }
    get textAlign() {
      return this[textAlign$0];
    }
    set textAlign(value) {
      super.textAlign = value;
    }
    get textDirection() {
      return this[textDirection$3];
    }
    set textDirection(value) {
      super.textDirection = value;
    }
    static ['_#new#tearOff'](opts) {
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      if (textDirection == null) dart.nullFailed(I[354], 2351, 19, "textDirection");
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
      if (textAlign == null) dart.nullFailed(I[354], 2353, 19, "textAlign");
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      if (fontWeight == null) dart.nullFailed(I[354], 2355, 19, "fontWeight");
      return new _engine.EditableTextStyle.new({textDirection: textDirection, fontSize: fontSize, textAlign: textAlign, fontFamily: fontFamily, fontWeight: fontWeight});
    }
    static fromFrameworkMessage(flutterStyle) {
      if (flutterStyle == null) dart.nullFailed(I[354], 2359, 28, "flutterStyle");
      if (!dart.test(flutterStyle[$containsKey]("fontSize"))) dart.assertFailed(null, I[354], 2360, 12, "flutterStyle.containsKey('fontSize')");
      if (!dart.test(flutterStyle[$containsKey]("fontFamily"))) dart.assertFailed(null, I[354], 2361, 12, "flutterStyle.containsKey('fontFamily')");
      if (!dart.test(flutterStyle[$containsKey]("textAlignIndex"))) dart.assertFailed(null, I[354], 2362, 12, "flutterStyle.containsKey('textAlignIndex')");
      if (!dart.test(flutterStyle[$containsKey]("textDirectionIndex"))) dart.assertFailed(null, I[354], 2363, 12, "flutterStyle.containsKey('textDirectionIndex')");
      let textAlignIndex = T$.int()[_as](flutterStyle[$_get]("textAlignIndex"));
      let textDirectionIndex = T$.int()[_as](flutterStyle[$_get]("textDirectionIndex"));
      let fontWeightIndex = T$.intN()[_as](flutterStyle[$_get]("fontWeightIndex"));
      let fontWeight = fontWeightIndex != null ? _engine.fontWeightIndexToCss({fontWeightIndex: fontWeightIndex}) : "normal";
      return new _engine.EditableTextStyle.new({fontSize: _engine['JsonExtensions|tryDouble'](flutterStyle, "fontSize"), fontFamily: _engine['JsonExtensions|tryString'](flutterStyle, "fontFamily"), textAlign: ui.TextAlign.values[$_get](textAlignIndex), textDirection: ui.TextDirection.values[$_get](textDirectionIndex), fontWeight: fontWeight});
    }
    static ['_#fromFrameworkMessage#tearOff'](flutterStyle) {
      if (flutterStyle == null) dart.nullFailed(I[354], 2359, 28, "flutterStyle");
      return _engine.EditableTextStyle.fromFrameworkMessage(flutterStyle);
    }
    get align() {
      return _engine.textAlignToCssValue(this.textAlign, this.textDirection);
    }
    get cssFont() {
      return dart.str(this.fontWeight) + " " + dart.str(this.fontSize) + "px " + dart.str(_engine.canonicalizeFontFamily(this.fontFamily));
    }
    applyToDomElement(domElement) {
      let t$36704;
      if (domElement == null) dart.nullFailed(I[354], 2399, 41, "domElement");
      t$36704 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), domElement, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#textAlign'](t$36704, dart.nullCheck(this.align));
        _engine['DomCSSStyleDeclarationExtension|set#font'](t$36704, this.cssFont);
        return t$36704;
      })();
    }
  };
  (_engine.EditableTextStyle.new = function(opts) {
    let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
    if (textDirection == null) dart.nullFailed(I[354], 2351, 19, "textDirection");
    let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
    let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
    if (textAlign == null) dart.nullFailed(I[354], 2353, 19, "textAlign");
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
    if (fontWeight == null) dart.nullFailed(I[354], 2355, 19, "fontWeight");
    this[textDirection$3] = textDirection;
    this[fontSize$3] = fontSize;
    this[textAlign$0] = textAlign;
    this[fontFamily$2] = fontFamily;
    this[fontWeight$2] = fontWeight;
    ;
  }).prototype = _engine.EditableTextStyle.prototype;
  dart.addRtiResources(_engine.EditableTextStyle, ["_engine|EditableTextStyle"]);
  dart.setMethodSignature(_engine.EditableTextStyle, () => dart.global.Object.setPrototypeOf({applyToDomElement: T$9.DomHTMLElementTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EditableTextStyle))));
  dart.setStaticMethodSignature(_engine.EditableTextStyle, () => ['fromFrameworkMessage']);
  dart.setGetterSignature(_engine.EditableTextStyle, () => dart.global.Object.setPrototypeOf({
    align: T$.StringN(),
    cssFont: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EditableTextStyle))));
  dart.setLibraryUri(_engine.EditableTextStyle, I[220]);
  dart.setFieldSignature(_engine.EditableTextStyle, () => dart.global.Object.setPrototypeOf({
    fontSize: {type: T$9.doubleN(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontWeight: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    fontFamily: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    textAlign: {type: T$9.TextAlign(), isConst: false, isFinal: true, libraryUri: I[198]},
    textDirection: {type: T$9.TextDirection(), isConst: false, isFinal: true, libraryUri: I[198]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EditableTextStyle))));
  var width$10 = dart.privateName(_engine, "EditableTextGeometry.width");
  var height$12 = dart.privateName(_engine, "EditableTextGeometry.height");
  var globalTransform$ = dart.privateName(_engine, "EditableTextGeometry.globalTransform");
  _engine.EditableTextGeometry = class EditableTextGeometry extends core.Object {
    get width() {
      return this[width$10];
    }
    set width(value) {
      super.width = value;
    }
    get height() {
      return this[height$12];
    }
    set height(value) {
      super.height = value;
    }
    get globalTransform() {
      return this[globalTransform$];
    }
    set globalTransform(value) {
      super.globalTransform = value;
    }
    static ['_#new#tearOff'](opts) {
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[354], 2413, 19, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[354], 2414, 19, "height");
      let globalTransform = opts && 'globalTransform' in opts ? opts.globalTransform : null;
      if (globalTransform == null) dart.nullFailed(I[354], 2415, 19, "globalTransform");
      return new _engine.EditableTextGeometry.new({width: width, height: height, globalTransform: globalTransform});
    }
    static fromFrameworkMessage(encodedGeometry) {
      if (encodedGeometry == null) dart.nullFailed(I[354], 2420, 26, "encodedGeometry");
      if (!dart.test(encodedGeometry[$containsKey]("width"))) dart.assertFailed(null, I[354], 2422, 12, "encodedGeometry.containsKey('width')");
      if (!dart.test(encodedGeometry[$containsKey]("height"))) dart.assertFailed(null, I[354], 2423, 12, "encodedGeometry.containsKey('height')");
      if (!dart.test(encodedGeometry[$containsKey]("transform"))) dart.assertFailed(null, I[354], 2424, 12, "encodedGeometry.containsKey('transform')");
      let transformList = G$.ListOfdouble().from(_engine['JsonExtensions|readList'](encodedGeometry, "transform")[$map](T$.dynamic(), dart.fn(e => T$.num()[_as](e)[$toDouble](), T$0.dynamicTodouble())));
      return new _engine.EditableTextGeometry.new({width: _engine['JsonExtensions|readDouble'](encodedGeometry, "width"), height: _engine['JsonExtensions|readDouble'](encodedGeometry, "height"), globalTransform: _native_typed_data.NativeFloat32List.fromList(transformList)});
    }
    static ['_#fromFrameworkMessage#tearOff'](encodedGeometry) {
      if (encodedGeometry == null) dart.nullFailed(I[354], 2420, 26, "encodedGeometry");
      return _engine.EditableTextGeometry.fromFrameworkMessage(encodedGeometry);
    }
    applyToDomElement(domElement) {
      let t$36704;
      if (domElement == null) dart.nullFailed(I[354], 2458, 41, "domElement");
      let cssTransform = _engine.float64ListToCssTransform(this.globalTransform);
      t$36704 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), domElement, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36704, dart.str(this.width) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36704, dart.str(this.height) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#transform'](t$36704, cssTransform);
        return t$36704;
      })();
    }
  };
  (_engine.EditableTextGeometry.new = function(opts) {
    let width = opts && 'width' in opts ? opts.width : null;
    if (width == null) dart.nullFailed(I[354], 2413, 19, "width");
    let height = opts && 'height' in opts ? opts.height : null;
    if (height == null) dart.nullFailed(I[354], 2414, 19, "height");
    let globalTransform = opts && 'globalTransform' in opts ? opts.globalTransform : null;
    if (globalTransform == null) dart.nullFailed(I[354], 2415, 19, "globalTransform");
    this[width$10] = width;
    this[height$12] = height;
    this[globalTransform$] = globalTransform;
    ;
  }).prototype = _engine.EditableTextGeometry.prototype;
  dart.addRtiResources(_engine.EditableTextGeometry, ["_engine|EditableTextGeometry"]);
  dart.setMethodSignature(_engine.EditableTextGeometry, () => dart.global.Object.setPrototypeOf({applyToDomElement: T$9.DomHTMLElementTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EditableTextGeometry))));
  dart.setStaticMethodSignature(_engine.EditableTextGeometry, () => ['fromFrameworkMessage']);
  dart.setLibraryUri(_engine.EditableTextGeometry, I[220]);
  dart.setFieldSignature(_engine.EditableTextGeometry, () => dart.global.Object.setPrototypeOf({
    width: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    globalTransform: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EditableTextGeometry))));
  _engine.TransformKind = class TransformKind extends core._Enum {
    [_enumToString]() {
      return "TransformKind." + dart.str(this[_name$]);
    }
  };
  (_engine.TransformKind.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[380], 102, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[380], 102, 6, "#name");
    dart.global.Object.getPrototypeOf(_engine.TransformKind).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _engine.TransformKind.prototype;
  dart.addRtiResources(_engine.TransformKind, ["_engine|TransformKind"]);
  dart.setMethodSignature(_engine.TransformKind, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.TransformKind))));
  dart.setLibraryUri(_engine.TransformKind, I[220]);
  dart.setStaticFieldSignature(_engine.TransformKind, () => ['values', 'identity', 'transform2d', 'complex']);
  dart.defineLazy(_engine.TransformKind, {
    /*_engine.TransformKind.values*/get values() {
      return C[1045] || CT.C1045;
    },
    /*_engine.TransformKind.identity*/get identity() {
      return C[1046] || CT.C1046;
    },
    /*_engine.TransformKind.transform2d*/get transform2d() {
      return C[1047] || CT.C1047;
    },
    /*_engine.TransformKind.complex*/get complex() {
      return C[1048] || CT.C1048;
    }
  }, false);
  var maximumSize$ = dart.privateName(_engine, "LruCache.maximumSize");
  var _itemQueue = dart.privateName(_engine, "_itemQueue");
  var _itemMap = dart.privateName(_engine, "_itemMap");
  var _removeLeastRecentlyUsedValue = dart.privateName(_engine, "_removeLeastRecentlyUsedValue");
  _engine.LruCache$ = dart.generic((K, V) => {
    var __t$RecOf__ = () => (__t$RecOf__ = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("+key,value(1,2)")))();
    var __t$DoubleLinkedQueueEntryOfRecOf__ = () => (__t$DoubleLinkedQueueEntryOfRecOf__ = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("_internal|DoubleLinkedQueueEntry<+key,value(1,2)>")))();
    var __t$LruCacheOfK$V = () => (__t$LruCacheOfK$V = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("_engine|LruCache<1,2>")))();
    var __t$DoubleLinkedQueueOfRecOf__ = () => (__t$DoubleLinkedQueueOfRecOf__ = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("collection|DoubleLinkedQueue<+key,value(1,2)>")))();
    var __t$MapOfK$DoubleLinkedQueueEntryOfRecOf__ = () => (__t$MapOfK$DoubleLinkedQueueEntryOfRecOf__ = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("core|Map<1,_internal|DoubleLinkedQueueEntry<+key,value(1,2)>>")))();
    var __t$KAndVTovoid = () => (__t$KAndVTovoid = dart.constFn(K[_eval]("@<0>")[_bind](V)[_eval]("~(1,2)")))();
    var __t$ObjectNToVN = () => (__t$ObjectNToVN = dart.constFn(V[_eval]("0?(core|Object?)")))();
    var __t$DoubleLinkedQueueOfRecOf__$ = () => (__t$DoubleLinkedQueueOfRecOf__$ = dart.constFn(collection.DoubleLinkedQueue$(__t$RecOf__())))();
    var __t$LinkedMapOfK$DoubleLinkedQueueEntryOfRecOf__ = () => (__t$LinkedMapOfK$DoubleLinkedQueueEntryOfRecOf__ = dart.constFn(_js_helper.LinkedMap$(K, __t$DoubleLinkedQueueEntryOfRecOf__())))();
    class LruCache extends core.Object {
      get maximumSize() {
        return this[maximumSize$];
      }
      set maximumSize(value) {
        super.maximumSize = value;
      }
      static ['_#new#tearOff'](K, V, maximumSize) {
        if (maximumSize == null) dart.nullFailed(I[380], 771, 17, "maximumSize");
        return new (_engine.LruCache$(K, V)).new(maximumSize);
      }
      get debugItemQueue() {
        return this[_itemQueue];
      }
      get itemMap() {
        return this[_itemMap];
      }
      get length() {
        return this[_itemQueue].length;
      }
      debugContainsValue(object) {
        V[_as](object);
        if (object == null) dart.nullFailed(I[380], 804, 29, "object");
        return this[_itemMap][$containsValue](object);
      }
      debugContainsKey(key) {
        K[_as](key);
        if (key == null) dart.nullFailed(I[380], 809, 27, "key");
        return this[_itemMap][$containsKey](key);
      }
      _get(key) {
        let t$36706;
        K[_as](key);
        if (key == null) dart.nullFailed(I[380], 816, 20, "key");
        t$36706 = this[_itemMap][$_get](key);
        return t$36706 == null ? null : t$36706.element.value;
      }
      cache(key, value) {
        K[_as](key);
        if (key == null) dart.nullFailed(I[380], 828, 16, "key");
        V[_as](value);
        if (value == null) dart.nullFailed(I[380], 828, 23, "value");
        let item = this[_itemMap][$_get](key);
        if (item == null) {
          this[_add$1](key, value);
        } else if (!dart.equals(item.element.value, value)) {
          item.remove();
          this[_add$1](key, value);
        } else {
          item.remove();
          this[_itemQueue].addFirst(item.element);
          this[_itemMap][$_set](key, dart.nullCheck(this[_itemQueue].firstEntry()));
        }
      }
      clear() {
        this[_itemQueue].clear();
        this[_itemMap][$clear]();
      }
      [_add$1](key, value) {
        if (key == null) dart.nullFailed(I[380], 850, 15, "key");
        if (value == null) dart.nullFailed(I[380], 850, 22, "value");
        this[_itemQueue].addFirst(dart.recordLiteral("2;key,value", 0, ["key", "value"], [key, value]));
        this[_itemMap][$_set](key, dart.nullCheck(this[_itemQueue].firstEntry()));
        if (dart.notNull(this[_itemQueue].length) > dart.notNull(this.maximumSize)) {
          this[_removeLeastRecentlyUsedValue]();
        }
      }
      [_removeLeastRecentlyUsedValue]() {
        let didRemove = this[_itemMap][$remove](this[_itemQueue].last.key) != null;
        if (!didRemove) dart.assertFailed(null, I[380], 861, 12, "didRemove");
        this[_itemQueue].removeLast();
      }
    }
    (LruCache.new = function(maximumSize) {
      if (maximumSize == null) dart.nullFailed(I[380], 771, 17, "maximumSize");
      this[_itemQueue] = new (__t$DoubleLinkedQueueOfRecOf__$()).new();
      this[_itemMap] = new (__t$LinkedMapOfK$DoubleLinkedQueueEntryOfRecOf__()).new();
      this[maximumSize$] = maximumSize;
      this.$ti = this.$ti || __t$LruCacheOfK$V();
      ;
    }).prototype = LruCache.prototype;
    dart.addRtiResources(LruCache, ["_engine|LruCache"]);
    dart.setMethodSignature(LruCache, () => dart.global.Object.setPrototypeOf({
      debugContainsValue: T$.ObjectNTobool(),
      debugContainsKey: T$.ObjectNTobool(),
      _get: __t$ObjectNToVN(),
      cache: T$.ObjectNAndObjectNTovoid(),
      clear: T$.VoidTovoid(),
      [_add$1]: __t$KAndVTovoid(),
      [_removeLeastRecentlyUsedValue]: T$.VoidTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(LruCache))));
    dart.setGetterSignature(LruCache, () => dart.global.Object.setPrototypeOf({
      debugItemQueue: __t$DoubleLinkedQueueOfRecOf__(),
      itemMap: __t$MapOfK$DoubleLinkedQueueEntryOfRecOf__(),
      length: T$.int()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(LruCache))));
    dart.setLibraryUri(LruCache, I[220]);
    dart.setFieldSignature(LruCache, () => dart.global.Object.setPrototypeOf({
      maximumSize: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_itemQueue]: {type: __t$DoubleLinkedQueueOfRecOf__(), isConst: false, isFinal: true, libraryUri: I[24]},
      [_itemMap]: {type: __t$MapOfK$DoubleLinkedQueueEntryOfRecOf__(), isConst: false, isFinal: true, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(LruCache))));
    return LruCache;
  });
  _engine.LruCache = _engine.LruCache$();
  const width$11 = BitmapSize_width;
  const height$13 = BitmapSize_height;
  _engine.BitmapSize = class BitmapSize extends core.Object {
    get width() {
      return this[width$11];
    }
    set width(value) {
      super.width = value;
    }
    get height() {
      return this[height$13];
    }
    set height(value) {
      super.height = value;
    }
    static ['_#new#tearOff'](width, height) {
      if (width == null) dart.nullFailed(I[380], 882, 25, "width");
      if (height == null) dart.nullFailed(I[380], 882, 37, "height");
      return new _engine.BitmapSize.new(width, height);
    }
    static ['_#fromSize#tearOff'](size) {
      if (size == null) dart.nullFailed(I[380], 886, 31, "size");
      return new _engine.BitmapSize.fromSize(size);
    }
    _equals(other) {
      if (other == null) return false;
      return T$9.BitmapSize()[_is](other) && other.width == this.width && other.height == this.height;
    }
    get hashCode() {
      return core.Object.hash(this.width, this.height);
    }
    toSize() {
      return new ui.Size.new(this.width[$toDouble](), this.height[$toDouble]());
    }
    get isEmpty() {
      return this.width === 0 || this.height === 0;
    }
  };
  (_engine.BitmapSize.new = function(width, height) {
    if (width == null) dart.nullFailed(I[380], 882, 25, "width");
    if (height == null) dart.nullFailed(I[380], 882, 37, "height");
    this[width$11] = width;
    this[height$13] = height;
    ;
  }).prototype = _engine.BitmapSize.prototype;
  (_engine.BitmapSize.fromSize = function(size) {
    if (size == null) dart.nullFailed(I[380], 886, 31, "size");
    this[width$11] = size.width[$round]();
    this[height$13] = size.height[$round]();
    ;
  }).prototype = _engine.BitmapSize.prototype;
  dart.addRtiResources(_engine.BitmapSize, ["_engine|BitmapSize"]);
  dart.setMethodSignature(_engine.BitmapSize, () => dart.global.Object.setPrototypeOf({toSize: T$12.VoidToSize()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.BitmapSize))));
  dart.setGetterSignature(_engine.BitmapSize, () => dart.global.Object.setPrototypeOf({isEmpty: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.BitmapSize))));
  dart.setLibraryUri(_engine.BitmapSize, I[220]);
  dart.setFieldSignature(_engine.BitmapSize, () => dart.global.Object.setPrototypeOf({
    width: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    height: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.BitmapSize))));
  dart.setStaticFieldSignature(_engine.BitmapSize, () => ['zero']);
  dart.defineExtensionMethods(_engine.BitmapSize, ['_equals']);
  dart.defineExtensionAccessors(_engine.BitmapSize, ['hashCode']);
  dart.defineLazy(_engine.BitmapSize, {
    /*_engine.BitmapSize.zero*/get zero() {
      return C[1049] || CT.C1049;
    }
  }, false);
  var _m4storage$ = dart.privateName(_engine, "_m4storage");
  _engine.Matrix4 = class Matrix4 extends core.Object {
    static new(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15) {
      let t$36706;
      if (arg0 == null) dart.nullFailed(I[381], 12, 18, "arg0");
      if (arg1 == null) dart.nullFailed(I[381], 13, 18, "arg1");
      if (arg2 == null) dart.nullFailed(I[381], 14, 18, "arg2");
      if (arg3 == null) dart.nullFailed(I[381], 15, 18, "arg3");
      if (arg4 == null) dart.nullFailed(I[381], 16, 18, "arg4");
      if (arg5 == null) dart.nullFailed(I[381], 17, 18, "arg5");
      if (arg6 == null) dart.nullFailed(I[381], 18, 18, "arg6");
      if (arg7 == null) dart.nullFailed(I[381], 19, 18, "arg7");
      if (arg8 == null) dart.nullFailed(I[381], 20, 18, "arg8");
      if (arg9 == null) dart.nullFailed(I[381], 21, 18, "arg9");
      if (arg10 == null) dart.nullFailed(I[381], 22, 18, "arg10");
      if (arg11 == null) dart.nullFailed(I[381], 23, 18, "arg11");
      if (arg12 == null) dart.nullFailed(I[381], 24, 18, "arg12");
      if (arg13 == null) dart.nullFailed(I[381], 25, 18, "arg13");
      if (arg14 == null) dart.nullFailed(I[381], 26, 18, "arg14");
      if (arg15 == null) dart.nullFailed(I[381], 27, 18, "arg15");
      t$36706 = new _engine.Matrix4.zero();
      return (() => {
        t$36706.setValues(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15);
        return t$36706;
      })();
    }
    static ['_#new#tearOff'](arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15) {
      if (arg0 == null) dart.nullFailed(I[381], 12, 18, "arg0");
      if (arg1 == null) dart.nullFailed(I[381], 13, 18, "arg1");
      if (arg2 == null) dart.nullFailed(I[381], 14, 18, "arg2");
      if (arg3 == null) dart.nullFailed(I[381], 15, 18, "arg3");
      if (arg4 == null) dart.nullFailed(I[381], 16, 18, "arg4");
      if (arg5 == null) dart.nullFailed(I[381], 17, 18, "arg5");
      if (arg6 == null) dart.nullFailed(I[381], 18, 18, "arg6");
      if (arg7 == null) dart.nullFailed(I[381], 19, 18, "arg7");
      if (arg8 == null) dart.nullFailed(I[381], 20, 18, "arg8");
      if (arg9 == null) dart.nullFailed(I[381], 21, 18, "arg9");
      if (arg10 == null) dart.nullFailed(I[381], 22, 18, "arg10");
      if (arg11 == null) dart.nullFailed(I[381], 23, 18, "arg11");
      if (arg12 == null) dart.nullFailed(I[381], 24, 18, "arg12");
      if (arg13 == null) dart.nullFailed(I[381], 25, 18, "arg13");
      if (arg14 == null) dart.nullFailed(I[381], 26, 18, "arg14");
      if (arg15 == null) dart.nullFailed(I[381], 27, 18, "arg15");
      return _engine.Matrix4.new(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15);
    }
    static ['_#zero#tearOff']() {
      return new _engine.Matrix4.zero();
    }
    static ['_#identity#tearOff']() {
      return new _engine.Matrix4.identity();
    }
    static copy(other) {
      let t$36706;
      if (other == null) dart.nullFailed(I[381], 44, 32, "other");
      t$36706 = new _engine.Matrix4.zero();
      return (() => {
        t$36706.setFrom(other);
        return t$36706;
      })();
    }
    static ['_#copy#tearOff'](other) {
      if (other == null) dart.nullFailed(I[381], 44, 32, "other");
      return _engine.Matrix4.copy(other);
    }
    static inverted(other) {
      if (other == null) dart.nullFailed(I[381], 47, 36, "other");
      let r = new _engine.Matrix4.zero();
      let determinant = r.copyInverse(other);
      if (determinant === 0.0) {
        dart.throw(new core.ArgumentError.value(other, "other", "Matrix cannot be inverted"));
      }
      return r;
    }
    static ['_#inverted#tearOff'](other) {
      if (other == null) dart.nullFailed(I[381], 47, 36, "other");
      return _engine.Matrix4.inverted(other);
    }
    static rotationX(radians) {
      let t$36706;
      if (radians == null) dart.nullFailed(I[381], 57, 36, "radians");
      t$36706 = new _engine.Matrix4.zero();
      return (() => {
        t$36706[_m4storage$][$_set](15, 1.0);
        t$36706.setRotationX(radians);
        return t$36706;
      })();
    }
    static ['_#rotationX#tearOff'](radians) {
      if (radians == null) dart.nullFailed(I[381], 57, 36, "radians");
      return _engine.Matrix4.rotationX(radians);
    }
    static rotationY(radians) {
      let t$36706;
      if (radians == null) dart.nullFailed(I[381], 62, 36, "radians");
      t$36706 = new _engine.Matrix4.zero();
      return (() => {
        t$36706[_m4storage$][$_set](15, 1.0);
        t$36706.setRotationY(radians);
        return t$36706;
      })();
    }
    static ['_#rotationY#tearOff'](radians) {
      if (radians == null) dart.nullFailed(I[381], 62, 36, "radians");
      return _engine.Matrix4.rotationY(radians);
    }
    static ['_#rotationZ#tearOff'](radians) {
      if (radians == null) dart.nullFailed(I[381], 67, 36, "radians");
      return _engine.Matrix4.rotationZ(radians);
    }
    static rotationZ(radians) {
      let t$36706;
      if (radians == null) dart.nullFailed(I[381], 67, 36, "radians");
      t$36706 = new _engine.Matrix4.zero();
      return (() => {
        t$36706[_m4storage$][$_set](15, 1.0);
        t$36706.setRotationZ(radians);
        return t$36706;
      })();
    }
    static ['_#translation#tearOff'](translation) {
      if (translation == null) dart.nullFailed(I[381], 72, 39, "translation");
      return _engine.Matrix4.translation(translation);
    }
    static translation(translation) {
      let t$36706;
      if (translation == null) dart.nullFailed(I[381], 72, 39, "translation");
      t$36706 = new _engine.Matrix4.identity();
      return (() => {
        t$36706.setTranslation(translation);
        return t$36706;
      })();
    }
    static ['_#translationValues#tearOff'](x, y, z) {
      if (x == null) dart.nullFailed(I[381], 76, 44, "x");
      if (y == null) dart.nullFailed(I[381], 76, 54, "y");
      if (z == null) dart.nullFailed(I[381], 76, 64, "z");
      return _engine.Matrix4.translationValues(x, y, z);
    }
    static translationValues(x, y, z) {
      let t$36706;
      if (x == null) dart.nullFailed(I[381], 76, 44, "x");
      if (y == null) dart.nullFailed(I[381], 76, 54, "y");
      if (z == null) dart.nullFailed(I[381], 76, 64, "z");
      t$36706 = new _engine.Matrix4.identity();
      return (() => {
        t$36706.setTranslationRaw(x, y, z);
        return t$36706;
      })();
    }
    static ['_#diagonal3Values#tearOff'](x, y, z) {
      if (x == null) dart.nullFailed(I[381], 81, 42, "x");
      if (y == null) dart.nullFailed(I[381], 81, 52, "y");
      if (z == null) dart.nullFailed(I[381], 81, 62, "z");
      return _engine.Matrix4.diagonal3Values(x, y, z);
    }
    static diagonal3Values(x, y, z) {
      let t$36706;
      if (x == null) dart.nullFailed(I[381], 81, 42, "x");
      if (y == null) dart.nullFailed(I[381], 81, 52, "y");
      if (z == null) dart.nullFailed(I[381], 81, 62, "z");
      t$36706 = new _engine.Matrix4.zero();
      return (() => {
        t$36706[_m4storage$][$_set](15, 1.0);
        t$36706[_m4storage$][$_set](10, z);
        t$36706[_m4storage$][$_set](5, y);
        t$36706[_m4storage$][$_set](0, x);
        return t$36706;
      })();
    }
    static ['_#fromFloat32List#tearOff'](_m4storage) {
      if (_m4storage == null) dart.nullFailed(I[381], 89, 32, "_m4storage");
      return new _engine.Matrix4.fromFloat32List(_m4storage);
    }
    static ['_#fromBuffer#tearOff'](buffer, offset) {
      if (buffer == null) dart.nullFailed(I[381], 93, 33, "buffer");
      if (offset == null) dart.nullFailed(I[381], 93, 45, "offset");
      return new _engine.Matrix4.fromBuffer(buffer, offset);
    }
    get storage() {
      return this[_m4storage$];
    }
    static tryInvert(other) {
      if (other == null) dart.nullFailed(I[381], 103, 37, "other");
      let r = new _engine.Matrix4.zero();
      let determinant = r.copyInverse(other);
      if (determinant === 0.0) {
        return null;
      }
      return r;
    }
    index(row, col) {
      if (row == null) dart.nullFailed(I[381], 113, 17, "row");
      if (col == null) dart.nullFailed(I[381], 113, 26, "col");
      return dart.notNull(col) * 4 + dart.notNull(row);
    }
    entry(row, col) {
      if (row == null) dart.nullFailed(I[381], 116, 20, "row");
      if (col == null) dart.nullFailed(I[381], 116, 29, "col");
      if (!(dart.notNull(row) >= 0 && dart.notNull(row) < dart.notNull(this.dimension))) dart.assertFailed(null, I[381], 117, 12, "(row >= 0) && (row < dimension)");
      if (!(dart.notNull(col) >= 0 && dart.notNull(col) < dart.notNull(this.dimension))) dart.assertFailed(null, I[381], 118, 12, "(col >= 0) && (col < dimension)");
      return this[_m4storage$][$_get](this.index(row, col));
    }
    setEntry(row, col, v) {
      if (row == null) dart.nullFailed(I[381], 124, 21, "row");
      if (col == null) dart.nullFailed(I[381], 124, 30, "col");
      if (v == null) dart.nullFailed(I[381], 124, 42, "v");
      if (!(dart.notNull(row) >= 0 && dart.notNull(row) < dart.notNull(this.dimension))) dart.assertFailed(null, I[381], 125, 12, "(row >= 0) && (row < dimension)");
      if (!(dart.notNull(col) >= 0 && dart.notNull(col) < dart.notNull(this.dimension))) dart.assertFailed(null, I[381], 126, 12, "(col >= 0) && (col < dimension)");
      this[_m4storage$][$_set](this.index(row, col), v);
    }
    setValues(arg0, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12, arg13, arg14, arg15) {
      if (arg0 == null) dart.nullFailed(I[381], 133, 14, "arg0");
      if (arg1 == null) dart.nullFailed(I[381], 134, 14, "arg1");
      if (arg2 == null) dart.nullFailed(I[381], 135, 14, "arg2");
      if (arg3 == null) dart.nullFailed(I[381], 136, 14, "arg3");
      if (arg4 == null) dart.nullFailed(I[381], 137, 14, "arg4");
      if (arg5 == null) dart.nullFailed(I[381], 138, 14, "arg5");
      if (arg6 == null) dart.nullFailed(I[381], 139, 14, "arg6");
      if (arg7 == null) dart.nullFailed(I[381], 140, 14, "arg7");
      if (arg8 == null) dart.nullFailed(I[381], 141, 14, "arg8");
      if (arg9 == null) dart.nullFailed(I[381], 142, 14, "arg9");
      if (arg10 == null) dart.nullFailed(I[381], 143, 14, "arg10");
      if (arg11 == null) dart.nullFailed(I[381], 144, 14, "arg11");
      if (arg12 == null) dart.nullFailed(I[381], 145, 14, "arg12");
      if (arg13 == null) dart.nullFailed(I[381], 146, 14, "arg13");
      if (arg14 == null) dart.nullFailed(I[381], 147, 14, "arg14");
      if (arg15 == null) dart.nullFailed(I[381], 148, 14, "arg15");
      this[_m4storage$][$_set](15, arg15);
      this[_m4storage$][$_set](14, arg14);
      this[_m4storage$][$_set](13, arg13);
      this[_m4storage$][$_set](12, arg12);
      this[_m4storage$][$_set](11, arg11);
      this[_m4storage$][$_set](10, arg10);
      this[_m4storage$][$_set](9, arg9);
      this[_m4storage$][$_set](8, arg8);
      this[_m4storage$][$_set](7, arg7);
      this[_m4storage$][$_set](6, arg6);
      this[_m4storage$][$_set](5, arg5);
      this[_m4storage$][$_set](4, arg4);
      this[_m4storage$][$_set](3, arg3);
      this[_m4storage$][$_set](2, arg2);
      this[_m4storage$][$_set](1, arg1);
      this[_m4storage$][$_set](0, arg0);
    }
    setFrom(arg) {
      if (arg == null) dart.nullFailed(I[381], 168, 24, "arg");
      let argStorage = arg[_m4storage$];
      this[_m4storage$][$_set](15, argStorage[$_get](15));
      this[_m4storage$][$_set](14, argStorage[$_get](14));
      this[_m4storage$][$_set](13, argStorage[$_get](13));
      this[_m4storage$][$_set](12, argStorage[$_get](12));
      this[_m4storage$][$_set](11, argStorage[$_get](11));
      this[_m4storage$][$_set](10, argStorage[$_get](10));
      this[_m4storage$][$_set](9, argStorage[$_get](9));
      this[_m4storage$][$_set](8, argStorage[$_get](8));
      this[_m4storage$][$_set](7, argStorage[$_get](7));
      this[_m4storage$][$_set](6, argStorage[$_get](6));
      this[_m4storage$][$_set](5, argStorage[$_get](5));
      this[_m4storage$][$_set](4, argStorage[$_get](4));
      this[_m4storage$][$_set](3, argStorage[$_get](3));
      this[_m4storage$][$_set](2, argStorage[$_get](2));
      this[_m4storage$][$_set](1, argStorage[$_get](1));
      this[_m4storage$][$_set](0, argStorage[$_get](0));
    }
    get dimension() {
      return 4;
    }
    _get(i) {
      if (i == null) dart.nullFailed(I[381], 192, 26, "i");
      return this[_m4storage$][$_get](i);
    }
    _set(i, v$) {
      let v = v$;
      if (i == null) dart.nullFailed(I[381], 195, 25, "i");
      if (v == null) dart.nullFailed(I[381], 195, 35, "v");
      this[_m4storage$][$_set](i, v);
      return v$;
    }
    clone() {
      return _engine.Matrix4.copy(this);
    }
    copyInto(arg) {
      if (arg == null) dart.nullFailed(I[381], 203, 28, "arg");
      let argStorage = arg[_m4storage$];
      argStorage[$_set](15, this[_m4storage$][$_get](15));
      argStorage[$_set](0, this[_m4storage$][$_get](0));
      argStorage[$_set](1, this[_m4storage$][$_get](1));
      argStorage[$_set](2, this[_m4storage$][$_get](2));
      argStorage[$_set](3, this[_m4storage$][$_get](3));
      argStorage[$_set](4, this[_m4storage$][$_get](4));
      argStorage[$_set](5, this[_m4storage$][$_get](5));
      argStorage[$_set](6, this[_m4storage$][$_get](6));
      argStorage[$_set](7, this[_m4storage$][$_get](7));
      argStorage[$_set](8, this[_m4storage$][$_get](8));
      argStorage[$_set](9, this[_m4storage$][$_get](9));
      argStorage[$_set](10, this[_m4storage$][$_get](10));
      argStorage[$_set](11, this[_m4storage$][$_get](11));
      argStorage[$_set](12, this[_m4storage$][$_get](12));
      argStorage[$_set](13, this[_m4storage$][$_get](13));
      argStorage[$_set](14, this[_m4storage$][$_get](14));
      return arg;
    }
    translate(x, y = 0, z = 0) {
      if (x == null) dart.nullFailed(I[381], 227, 25, "x");
      if (y == null) dart.nullFailed(I[381], 227, 36, "y");
      if (z == null) dart.nullFailed(I[381], 227, 52, "z");
      let t1 = dart.notNull(this[_m4storage$][$_get](0)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](4)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](8)) * dart.notNull(z) + dart.notNull(this[_m4storage$][$_get](12)) * 1;
      let t2 = dart.notNull(this[_m4storage$][$_get](1)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](5)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](9)) * dart.notNull(z) + dart.notNull(this[_m4storage$][$_get](13)) * 1;
      let t3 = dart.notNull(this[_m4storage$][$_get](2)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](6)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](10)) * dart.notNull(z) + dart.notNull(this[_m4storage$][$_get](14)) * 1;
      let t4 = dart.notNull(this[_m4storage$][$_get](3)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](7)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](11)) * dart.notNull(z) + dart.notNull(this[_m4storage$][$_get](15)) * 1;
      this[_m4storage$][$_set](12, t1);
      this[_m4storage$][$_set](13, t2);
      this[_m4storage$][$_set](14, t3);
      this[_m4storage$][$_set](15, t4);
    }
    scale(x, y = null, z = null) {
      let t$36706, t$36706$, t$36707, t$36706$0, t$36707$, t$36706$1, t$36707$0, t$36706$2, t$36707$1, t$36706$3, t$36707$2, t$36706$4, t$36707$3, t$36706$5, t$36707$4, t$36706$6, t$36707$5, t$36706$7, t$36707$6, t$36706$8, t$36707$7, t$36706$9, t$36707$8, t$36706$10, t$36707$9, t$36706$11, t$36707$10, t$36706$12, t$36707$11, t$36706$13, t$36707$12, t$36706$14, t$36707$13, t$36706$15;
      if (x == null) dart.nullFailed(I[381], 252, 21, "x");
      let sx = x;
      let sy = (t$36706 = y, t$36706 == null ? x : t$36706);
      let sz = (t$36706$ = z, t$36706$ == null ? x : t$36706$);
      t$36706$0 = this[_m4storage$];
      t$36707 = 15;
      t$36706$0[$_set](t$36707, dart.notNull(t$36706$0[$_get](t$36707)) * 1);
      t$36706$1 = this[_m4storage$];
      t$36707$ = 0;
      t$36706$1[$_set](t$36707$, dart.notNull(t$36706$1[$_get](t$36707$)) * dart.notNull(sx));
      t$36706$2 = this[_m4storage$];
      t$36707$0 = 1;
      t$36706$2[$_set](t$36707$0, dart.notNull(t$36706$2[$_get](t$36707$0)) * dart.notNull(sx));
      t$36706$3 = this[_m4storage$];
      t$36707$1 = 2;
      t$36706$3[$_set](t$36707$1, dart.notNull(t$36706$3[$_get](t$36707$1)) * dart.notNull(sx));
      t$36706$4 = this[_m4storage$];
      t$36707$2 = 3;
      t$36706$4[$_set](t$36707$2, dart.notNull(t$36706$4[$_get](t$36707$2)) * dart.notNull(sx));
      t$36706$5 = this[_m4storage$];
      t$36707$3 = 4;
      t$36706$5[$_set](t$36707$3, dart.notNull(t$36706$5[$_get](t$36707$3)) * dart.notNull(sy));
      t$36706$6 = this[_m4storage$];
      t$36707$4 = 5;
      t$36706$6[$_set](t$36707$4, dart.notNull(t$36706$6[$_get](t$36707$4)) * dart.notNull(sy));
      t$36706$7 = this[_m4storage$];
      t$36707$5 = 6;
      t$36706$7[$_set](t$36707$5, dart.notNull(t$36706$7[$_get](t$36707$5)) * dart.notNull(sy));
      t$36706$8 = this[_m4storage$];
      t$36707$6 = 7;
      t$36706$8[$_set](t$36707$6, dart.notNull(t$36706$8[$_get](t$36707$6)) * dart.notNull(sy));
      t$36706$9 = this[_m4storage$];
      t$36707$7 = 8;
      t$36706$9[$_set](t$36707$7, dart.notNull(t$36706$9[$_get](t$36707$7)) * dart.notNull(sz));
      t$36706$10 = this[_m4storage$];
      t$36707$8 = 9;
      t$36706$10[$_set](t$36707$8, dart.notNull(t$36706$10[$_get](t$36707$8)) * dart.notNull(sz));
      t$36706$11 = this[_m4storage$];
      t$36707$9 = 10;
      t$36706$11[$_set](t$36707$9, dart.notNull(t$36706$11[$_get](t$36707$9)) * dart.notNull(sz));
      t$36706$12 = this[_m4storage$];
      t$36707$10 = 11;
      t$36706$12[$_set](t$36707$10, dart.notNull(t$36706$12[$_get](t$36707$10)) * dart.notNull(sz));
      t$36706$13 = this[_m4storage$];
      t$36707$11 = 12;
      t$36706$13[$_set](t$36707$11, dart.notNull(t$36706$13[$_get](t$36707$11)) * 1);
      t$36706$14 = this[_m4storage$];
      t$36707$12 = 13;
      t$36706$14[$_set](t$36707$12, dart.notNull(t$36706$14[$_get](t$36707$12)) * 1);
      t$36706$15 = this[_m4storage$];
      t$36707$13 = 14;
      t$36706$15[$_set](t$36707$13, dart.notNull(t$36706$15[$_get](t$36707$13)) * 1);
    }
    scaled(x, y = null, z = null) {
      let t$36706;
      if (x == null) dart.nullFailed(I[381], 277, 25, "x");
      t$36706 = this.clone();
      return (() => {
        t$36706.scale(x, y, z);
        return t$36706;
      })();
    }
    setZero() {
      this[_m4storage$][$_set](15, 0.0);
      this[_m4storage$][$_set](0, 0.0);
      this[_m4storage$][$_set](1, 0.0);
      this[_m4storage$][$_set](2, 0.0);
      this[_m4storage$][$_set](3, 0.0);
      this[_m4storage$][$_set](4, 0.0);
      this[_m4storage$][$_set](5, 0.0);
      this[_m4storage$][$_set](6, 0.0);
      this[_m4storage$][$_set](7, 0.0);
      this[_m4storage$][$_set](8, 0.0);
      this[_m4storage$][$_set](9, 0.0);
      this[_m4storage$][$_set](10, 0.0);
      this[_m4storage$][$_set](11, 0.0);
      this[_m4storage$][$_set](12, 0.0);
      this[_m4storage$][$_set](13, 0.0);
      this[_m4storage$][$_set](14, 0.0);
    }
    setIdentity() {
      this[_m4storage$][$_set](15, 1.0);
      this[_m4storage$][$_set](0, 1.0);
      this[_m4storage$][$_set](1, 0.0);
      this[_m4storage$][$_set](2, 0.0);
      this[_m4storage$][$_set](3, 0.0);
      this[_m4storage$][$_set](4, 0.0);
      this[_m4storage$][$_set](5, 1.0);
      this[_m4storage$][$_set](6, 0.0);
      this[_m4storage$][$_set](7, 0.0);
      this[_m4storage$][$_set](8, 0.0);
      this[_m4storage$][$_set](9, 0.0);
      this[_m4storage$][$_set](10, 1.0);
      this[_m4storage$][$_set](11, 0.0);
      this[_m4storage$][$_set](12, 0.0);
      this[_m4storage$][$_set](13, 0.0);
      this[_m4storage$][$_set](14, 0.0);
    }
    transposed() {
      let t$36706;
      t$36706 = this.clone();
      return (() => {
        t$36706.transpose();
        return t$36706;
      })();
    }
    transpose() {
      let temp = null;
      temp = this[_m4storage$][$_get](4);
      this[_m4storage$][$_set](4, this[_m4storage$][$_get](1));
      this[_m4storage$][$_set](1, temp);
      temp = this[_m4storage$][$_get](8);
      this[_m4storage$][$_set](8, this[_m4storage$][$_get](2));
      this[_m4storage$][$_set](2, temp);
      temp = this[_m4storage$][$_get](12);
      this[_m4storage$][$_set](12, this[_m4storage$][$_get](3));
      this[_m4storage$][$_set](3, temp);
      temp = this[_m4storage$][$_get](9);
      this[_m4storage$][$_set](9, this[_m4storage$][$_get](6));
      this[_m4storage$][$_set](6, temp);
      temp = this[_m4storage$][$_get](13);
      this[_m4storage$][$_set](13, this[_m4storage$][$_get](7));
      this[_m4storage$][$_set](7, temp);
      temp = this[_m4storage$][$_get](14);
      this[_m4storage$][$_set](14, this[_m4storage$][$_get](11));
      this[_m4storage$][$_set](11, temp);
    }
    determinant() {
      let m = this[_m4storage$];
      let det2_01_01 = dart.notNull(m[$_get](0)) * dart.notNull(m[$_get](5)) - dart.notNull(m[$_get](1)) * dart.notNull(m[$_get](4));
      let det2_01_02 = dart.notNull(m[$_get](0)) * dart.notNull(m[$_get](6)) - dart.notNull(m[$_get](2)) * dart.notNull(m[$_get](4));
      let det2_01_03 = dart.notNull(m[$_get](0)) * dart.notNull(m[$_get](7)) - dart.notNull(m[$_get](3)) * dart.notNull(m[$_get](4));
      let det2_01_12 = dart.notNull(m[$_get](1)) * dart.notNull(m[$_get](6)) - dart.notNull(m[$_get](2)) * dart.notNull(m[$_get](5));
      let det2_01_13 = dart.notNull(m[$_get](1)) * dart.notNull(m[$_get](7)) - dart.notNull(m[$_get](3)) * dart.notNull(m[$_get](5));
      let det2_01_23 = dart.notNull(m[$_get](2)) * dart.notNull(m[$_get](7)) - dart.notNull(m[$_get](3)) * dart.notNull(m[$_get](6));
      let det3_201_012 = dart.notNull(m[$_get](8)) * det2_01_12 - dart.notNull(m[$_get](9)) * det2_01_02 + dart.notNull(m[$_get](10)) * det2_01_01;
      let det3_201_013 = dart.notNull(m[$_get](8)) * det2_01_13 - dart.notNull(m[$_get](9)) * det2_01_03 + dart.notNull(m[$_get](11)) * det2_01_01;
      let det3_201_023 = dart.notNull(m[$_get](8)) * det2_01_23 - dart.notNull(m[$_get](10)) * det2_01_03 + dart.notNull(m[$_get](11)) * det2_01_02;
      let det3_201_123 = dart.notNull(m[$_get](9)) * det2_01_23 - dart.notNull(m[$_get](10)) * det2_01_13 + dart.notNull(m[$_get](11)) * det2_01_12;
      return -det3_201_123 * dart.notNull(m[$_get](12)) + det3_201_023 * dart.notNull(m[$_get](13)) - det3_201_013 * dart.notNull(m[$_get](14)) + det3_201_012 * dart.notNull(m[$_get](15));
    }
    perspectiveTransform(opts) {
      let x = opts && 'x' in opts ? opts.x : null;
      if (x == null) dart.nullFailed(I[381], 380, 21, "x");
      let y = opts && 'y' in opts ? opts.y : null;
      if (y == null) dart.nullFailed(I[381], 381, 21, "y");
      let z = opts && 'z' in opts ? opts.z : null;
      if (z == null) dart.nullFailed(I[381], 382, 21, "z");
      let transformedX = dart.notNull(this[_m4storage$][$_get](0)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](4)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](8)) * dart.notNull(z) + dart.notNull(this[_m4storage$][$_get](12));
      let transformedY = dart.notNull(this[_m4storage$][$_get](1)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](5)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](9)) * dart.notNull(z) + dart.notNull(this[_m4storage$][$_get](13));
      let transformedZ = dart.notNull(this[_m4storage$][$_get](2)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](6)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](10)) * dart.notNull(z) + dart.notNull(this[_m4storage$][$_get](14));
      let w = 1.0 / (dart.notNull(this[_m4storage$][$_get](3)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](7)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](11)) * dart.notNull(z) + dart.notNull(this[_m4storage$][$_get](15)));
      return dart.recordLiteral("3;x,y,z", 0, ["x", "y", "z"], [transformedX * w, transformedY * w, transformedZ * w]);
    }
    isIdentity() {
      return this[_m4storage$][$_get](0) === 1.0 && this[_m4storage$][$_get](1) === 0.0 && this[_m4storage$][$_get](2) === 0.0 && this[_m4storage$][$_get](3) === 0.0 && this[_m4storage$][$_get](4) === 0.0 && this[_m4storage$][$_get](5) === 1.0 && this[_m4storage$][$_get](6) === 0.0 && this[_m4storage$][$_get](7) === 0.0 && this[_m4storage$][$_get](8) === 0.0 && this[_m4storage$][$_get](9) === 0.0 && this[_m4storage$][$_get](10) === 1.0 && this[_m4storage$][$_get](11) === 0.0 && this[_m4storage$][$_get](12) === 0.0 && this[_m4storage$][$_get](13) === 0.0 && this[_m4storage$][$_get](14) === 0.0 && this[_m4storage$][$_get](15) === 1.0;
    }
    isIdentityOrTranslation() {
      return this[_m4storage$][$_get](15) === 1.0 && this[_m4storage$][$_get](0) === 1.0 && this[_m4storage$][$_get](1) === 0.0 && this[_m4storage$][$_get](2) === 0.0 && this[_m4storage$][$_get](3) === 0.0 && this[_m4storage$][$_get](4) === 0.0 && this[_m4storage$][$_get](5) === 1.0 && this[_m4storage$][$_get](6) === 0.0 && this[_m4storage$][$_get](7) === 0.0 && this[_m4storage$][$_get](8) === 0.0 && this[_m4storage$][$_get](9) === 0.0 && this[_m4storage$][$_get](10) === 1.0 && this[_m4storage$][$_get](11) === 0.0;
    }
    getTranslation() {
      return dart.recordLiteral("3;x,y,z", 0, ["x", "y", "z"], [this[_m4storage$][$_get](12), this[_m4storage$][$_get](13), this[_m4storage$][$_get](14)]);
    }
    rotate(axis, angle) {
      if (axis == null) dart.nullFailed(I[381], 454, 23, "axis");
      if (angle == null) dart.nullFailed(I[381], 454, 36, "angle");
      let len = _engine['Vector3Extension|get#length'](axis);
      let x = dart.notNull(axis.x) / dart.notNull(len);
      let y = dart.notNull(axis.y) / dart.notNull(len);
      let z = dart.notNull(axis.z) / dart.notNull(len);
      let c = math.cos(angle);
      let s = math.sin(angle);
      let C = 1.0 - c;
      let m11 = x * x * C + c;
      let m12 = x * y * C - z * s;
      let m13 = x * z * C + y * s;
      let m21 = y * x * C + z * s;
      let m22 = y * y * C + c;
      let m23 = y * z * C - x * s;
      let m31 = z * x * C - y * s;
      let m32 = z * y * C + x * s;
      let m33 = z * z * C + c;
      let t1 = dart.notNull(this[_m4storage$][$_get](0)) * m11 + dart.notNull(this[_m4storage$][$_get](4)) * m21 + dart.notNull(this[_m4storage$][$_get](8)) * m31;
      let t2 = dart.notNull(this[_m4storage$][$_get](1)) * m11 + dart.notNull(this[_m4storage$][$_get](5)) * m21 + dart.notNull(this[_m4storage$][$_get](9)) * m31;
      let t3 = dart.notNull(this[_m4storage$][$_get](2)) * m11 + dart.notNull(this[_m4storage$][$_get](6)) * m21 + dart.notNull(this[_m4storage$][$_get](10)) * m31;
      let t4 = dart.notNull(this[_m4storage$][$_get](3)) * m11 + dart.notNull(this[_m4storage$][$_get](7)) * m21 + dart.notNull(this[_m4storage$][$_get](11)) * m31;
      let t5 = dart.notNull(this[_m4storage$][$_get](0)) * m12 + dart.notNull(this[_m4storage$][$_get](4)) * m22 + dart.notNull(this[_m4storage$][$_get](8)) * m32;
      let t6 = dart.notNull(this[_m4storage$][$_get](1)) * m12 + dart.notNull(this[_m4storage$][$_get](5)) * m22 + dart.notNull(this[_m4storage$][$_get](9)) * m32;
      let t7 = dart.notNull(this[_m4storage$][$_get](2)) * m12 + dart.notNull(this[_m4storage$][$_get](6)) * m22 + dart.notNull(this[_m4storage$][$_get](10)) * m32;
      let t8 = dart.notNull(this[_m4storage$][$_get](3)) * m12 + dart.notNull(this[_m4storage$][$_get](7)) * m22 + dart.notNull(this[_m4storage$][$_get](11)) * m32;
      let t9 = dart.notNull(this[_m4storage$][$_get](0)) * m13 + dart.notNull(this[_m4storage$][$_get](4)) * m23 + dart.notNull(this[_m4storage$][$_get](8)) * m33;
      let t10 = dart.notNull(this[_m4storage$][$_get](1)) * m13 + dart.notNull(this[_m4storage$][$_get](5)) * m23 + dart.notNull(this[_m4storage$][$_get](9)) * m33;
      let t11 = dart.notNull(this[_m4storage$][$_get](2)) * m13 + dart.notNull(this[_m4storage$][$_get](6)) * m23 + dart.notNull(this[_m4storage$][$_get](10)) * m33;
      let t12 = dart.notNull(this[_m4storage$][$_get](3)) * m13 + dart.notNull(this[_m4storage$][$_get](7)) * m23 + dart.notNull(this[_m4storage$][$_get](11)) * m33;
      this[_m4storage$][$_set](0, t1);
      this[_m4storage$][$_set](1, t2);
      this[_m4storage$][$_set](2, t3);
      this[_m4storage$][$_set](3, t4);
      this[_m4storage$][$_set](4, t5);
      this[_m4storage$][$_set](5, t6);
      this[_m4storage$][$_set](6, t7);
      this[_m4storage$][$_set](7, t8);
      this[_m4storage$][$_set](8, t9);
      this[_m4storage$][$_set](9, t10);
      this[_m4storage$][$_set](10, t11);
      this[_m4storage$][$_set](11, t12);
    }
    rotateZ(angle) {
      if (angle == null) dart.nullFailed(I[381], 509, 23, "angle");
      let cosAngle = math.cos(angle);
      let sinAngle = math.sin(angle);
      let t1 = dart.notNull(this[_m4storage$][$_get](0)) * cosAngle + dart.notNull(this[_m4storage$][$_get](4)) * sinAngle;
      let t2 = dart.notNull(this[_m4storage$][$_get](1)) * cosAngle + dart.notNull(this[_m4storage$][$_get](5)) * sinAngle;
      let t3 = dart.notNull(this[_m4storage$][$_get](2)) * cosAngle + dart.notNull(this[_m4storage$][$_get](6)) * sinAngle;
      let t4 = dart.notNull(this[_m4storage$][$_get](3)) * cosAngle + dart.notNull(this[_m4storage$][$_get](7)) * sinAngle;
      let t5 = dart.notNull(this[_m4storage$][$_get](0)) * -sinAngle + dart.notNull(this[_m4storage$][$_get](4)) * cosAngle;
      let t6 = dart.notNull(this[_m4storage$][$_get](1)) * -sinAngle + dart.notNull(this[_m4storage$][$_get](5)) * cosAngle;
      let t7 = dart.notNull(this[_m4storage$][$_get](2)) * -sinAngle + dart.notNull(this[_m4storage$][$_get](6)) * cosAngle;
      let t8 = dart.notNull(this[_m4storage$][$_get](3)) * -sinAngle + dart.notNull(this[_m4storage$][$_get](7)) * cosAngle;
      this[_m4storage$][$_set](0, t1);
      this[_m4storage$][$_set](1, t2);
      this[_m4storage$][$_set](2, t3);
      this[_m4storage$][$_set](3, t4);
      this[_m4storage$][$_set](4, t5);
      this[_m4storage$][$_set](5, t6);
      this[_m4storage$][$_set](6, t7);
      this[_m4storage$][$_set](7, t8);
    }
    setTranslation(t) {
      if (t == null) dart.nullFailed(I[381], 531, 31, "t");
      this[_m4storage$][$_set](14, t.z);
      this[_m4storage$][$_set](13, t.y);
      this[_m4storage$][$_set](12, t.x);
    }
    setTranslationRaw(x, y, z) {
      if (x == null) dart.nullFailed(I[381], 538, 33, "x");
      if (y == null) dart.nullFailed(I[381], 538, 43, "y");
      if (z == null) dart.nullFailed(I[381], 538, 53, "z");
      this[_m4storage$][$_set](14, z);
      this[_m4storage$][$_set](13, y);
      this[_m4storage$][$_set](12, x);
    }
    transposeRotation() {
      let temp = null;
      temp = this[_m4storage$][$_get](1);
      this[_m4storage$][$_set](1, this[_m4storage$][$_get](4));
      this[_m4storage$][$_set](4, temp);
      temp = this[_m4storage$][$_get](2);
      this[_m4storage$][$_set](2, this[_m4storage$][$_get](8));
      this[_m4storage$][$_set](8, temp);
      temp = this[_m4storage$][$_get](4);
      this[_m4storage$][$_set](4, this[_m4storage$][$_get](1));
      this[_m4storage$][$_set](1, temp);
      temp = this[_m4storage$][$_get](6);
      this[_m4storage$][$_set](6, this[_m4storage$][$_get](9));
      this[_m4storage$][$_set](9, temp);
      temp = this[_m4storage$][$_get](8);
      this[_m4storage$][$_set](8, this[_m4storage$][$_get](2));
      this[_m4storage$][$_set](2, temp);
      temp = this[_m4storage$][$_get](9);
      this[_m4storage$][$_set](9, this[_m4storage$][$_get](6));
      this[_m4storage$][$_set](6, temp);
    }
    invert() {
      return this.copyInverse(this);
    }
    copyInverse(arg) {
      if (arg == null) dart.nullFailed(I[381], 571, 30, "arg");
      let argStorage = arg[_m4storage$];
      let a00 = argStorage[$_get](0);
      let a01 = argStorage[$_get](1);
      let a02 = argStorage[$_get](2);
      let a03 = argStorage[$_get](3);
      let a10 = argStorage[$_get](4);
      let a11 = argStorage[$_get](5);
      let a12 = argStorage[$_get](6);
      let a13 = argStorage[$_get](7);
      let a20 = argStorage[$_get](8);
      let a21 = argStorage[$_get](9);
      let a22 = argStorage[$_get](10);
      let a23 = argStorage[$_get](11);
      let a30 = argStorage[$_get](12);
      let a31 = argStorage[$_get](13);
      let a32 = argStorage[$_get](14);
      let a33 = argStorage[$_get](15);
      let b00 = dart.notNull(a00) * dart.notNull(a11) - dart.notNull(a01) * dart.notNull(a10);
      let b01 = dart.notNull(a00) * dart.notNull(a12) - dart.notNull(a02) * dart.notNull(a10);
      let b02 = dart.notNull(a00) * dart.notNull(a13) - dart.notNull(a03) * dart.notNull(a10);
      let b03 = dart.notNull(a01) * dart.notNull(a12) - dart.notNull(a02) * dart.notNull(a11);
      let b04 = dart.notNull(a01) * dart.notNull(a13) - dart.notNull(a03) * dart.notNull(a11);
      let b05 = dart.notNull(a02) * dart.notNull(a13) - dart.notNull(a03) * dart.notNull(a12);
      let b06 = dart.notNull(a20) * dart.notNull(a31) - dart.notNull(a21) * dart.notNull(a30);
      let b07 = dart.notNull(a20) * dart.notNull(a32) - dart.notNull(a22) * dart.notNull(a30);
      let b08 = dart.notNull(a20) * dart.notNull(a33) - dart.notNull(a23) * dart.notNull(a30);
      let b09 = dart.notNull(a21) * dart.notNull(a32) - dart.notNull(a22) * dart.notNull(a31);
      let b10 = dart.notNull(a21) * dart.notNull(a33) - dart.notNull(a23) * dart.notNull(a31);
      let b11 = dart.notNull(a22) * dart.notNull(a33) - dart.notNull(a23) * dart.notNull(a32);
      let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
      if (det === 0.0) {
        this.setFrom(arg);
        return 0.0;
      }
      let invDet = 1.0 / det;
      this[_m4storage$][$_set](0, (dart.notNull(a11) * b11 - dart.notNull(a12) * b10 + dart.notNull(a13) * b09) * invDet);
      this[_m4storage$][$_set](1, (-dart.notNull(a01) * b11 + dart.notNull(a02) * b10 - dart.notNull(a03) * b09) * invDet);
      this[_m4storage$][$_set](2, (dart.notNull(a31) * b05 - dart.notNull(a32) * b04 + dart.notNull(a33) * b03) * invDet);
      this[_m4storage$][$_set](3, (-dart.notNull(a21) * b05 + dart.notNull(a22) * b04 - dart.notNull(a23) * b03) * invDet);
      this[_m4storage$][$_set](4, (-dart.notNull(a10) * b11 + dart.notNull(a12) * b08 - dart.notNull(a13) * b07) * invDet);
      this[_m4storage$][$_set](5, (dart.notNull(a00) * b11 - dart.notNull(a02) * b08 + dart.notNull(a03) * b07) * invDet);
      this[_m4storage$][$_set](6, (-dart.notNull(a30) * b05 + dart.notNull(a32) * b02 - dart.notNull(a33) * b01) * invDet);
      this[_m4storage$][$_set](7, (dart.notNull(a20) * b05 - dart.notNull(a22) * b02 + dart.notNull(a23) * b01) * invDet);
      this[_m4storage$][$_set](8, (dart.notNull(a10) * b10 - dart.notNull(a11) * b08 + dart.notNull(a13) * b06) * invDet);
      this[_m4storage$][$_set](9, (-dart.notNull(a00) * b10 + dart.notNull(a01) * b08 - dart.notNull(a03) * b06) * invDet);
      this[_m4storage$][$_set](10, (dart.notNull(a30) * b04 - dart.notNull(a31) * b02 + dart.notNull(a33) * b00) * invDet);
      this[_m4storage$][$_set](11, (-dart.notNull(a20) * b04 + dart.notNull(a21) * b02 - dart.notNull(a23) * b00) * invDet);
      this[_m4storage$][$_set](12, (-dart.notNull(a10) * b09 + dart.notNull(a11) * b07 - dart.notNull(a12) * b06) * invDet);
      this[_m4storage$][$_set](13, (dart.notNull(a00) * b09 - dart.notNull(a01) * b07 + dart.notNull(a02) * b06) * invDet);
      this[_m4storage$][$_set](14, (-dart.notNull(a30) * b03 + dart.notNull(a31) * b01 - dart.notNull(a32) * b00) * invDet);
      this[_m4storage$][$_set](15, (dart.notNull(a20) * b03 - dart.notNull(a21) * b01 + dart.notNull(a22) * b00) * invDet);
      return det;
    }
    invertRotation() {
      let det = this.determinant();
      if (det === 0.0) {
        return 0.0;
      }
      let invDet = 1.0 / dart.notNull(det);
      let ix = null;
      let iy = null;
      let iz = null;
      let jx = null;
      let jy = null;
      let jz = null;
      let kx = null;
      let ky = null;
      let kz = null;
      ix = invDet * (dart.notNull(this[_m4storage$][$_get](5)) * dart.notNull(this[_m4storage$][$_get](10)) - dart.notNull(this[_m4storage$][$_get](6)) * dart.notNull(this[_m4storage$][$_get](9)));
      iy = invDet * (dart.notNull(this[_m4storage$][$_get](2)) * dart.notNull(this[_m4storage$][$_get](9)) - dart.notNull(this[_m4storage$][$_get](1)) * dart.notNull(this[_m4storage$][$_get](10)));
      iz = invDet * (dart.notNull(this[_m4storage$][$_get](1)) * dart.notNull(this[_m4storage$][$_get](6)) - dart.notNull(this[_m4storage$][$_get](2)) * dart.notNull(this[_m4storage$][$_get](5)));
      jx = invDet * (dart.notNull(this[_m4storage$][$_get](6)) * dart.notNull(this[_m4storage$][$_get](8)) - dart.notNull(this[_m4storage$][$_get](4)) * dart.notNull(this[_m4storage$][$_get](10)));
      jy = invDet * (dart.notNull(this[_m4storage$][$_get](0)) * dart.notNull(this[_m4storage$][$_get](10)) - dart.notNull(this[_m4storage$][$_get](2)) * dart.notNull(this[_m4storage$][$_get](8)));
      jz = invDet * (dart.notNull(this[_m4storage$][$_get](2)) * dart.notNull(this[_m4storage$][$_get](4)) - dart.notNull(this[_m4storage$][$_get](0)) * dart.notNull(this[_m4storage$][$_get](6)));
      kx = invDet * (dart.notNull(this[_m4storage$][$_get](4)) * dart.notNull(this[_m4storage$][$_get](9)) - dart.notNull(this[_m4storage$][$_get](5)) * dart.notNull(this[_m4storage$][$_get](8)));
      ky = invDet * (dart.notNull(this[_m4storage$][$_get](1)) * dart.notNull(this[_m4storage$][$_get](8)) - dart.notNull(this[_m4storage$][$_get](0)) * dart.notNull(this[_m4storage$][$_get](9)));
      kz = invDet * (dart.notNull(this[_m4storage$][$_get](0)) * dart.notNull(this[_m4storage$][$_get](5)) - dart.notNull(this[_m4storage$][$_get](1)) * dart.notNull(this[_m4storage$][$_get](4)));
      this[_m4storage$][$_set](0, ix);
      this[_m4storage$][$_set](1, iy);
      this[_m4storage$][$_set](2, iz);
      this[_m4storage$][$_set](4, jx);
      this[_m4storage$][$_set](5, jy);
      this[_m4storage$][$_set](6, jz);
      this[_m4storage$][$_set](8, kx);
      this[_m4storage$][$_set](9, ky);
      this[_m4storage$][$_set](10, kz);
      return det;
    }
    setRotationX(radians) {
      if (radians == null) dart.nullFailed(I[381], 673, 28, "radians");
      let c = math.cos(radians);
      let s = math.sin(radians);
      this[_m4storage$][$_set](0, 1.0);
      this[_m4storage$][$_set](1, 0.0);
      this[_m4storage$][$_set](2, 0.0);
      this[_m4storage$][$_set](4, 0.0);
      this[_m4storage$][$_set](5, c);
      this[_m4storage$][$_set](6, s);
      this[_m4storage$][$_set](8, 0.0);
      this[_m4storage$][$_set](9, -s);
      this[_m4storage$][$_set](10, c);
      this[_m4storage$][$_set](3, 0.0);
      this[_m4storage$][$_set](7, 0.0);
      this[_m4storage$][$_set](11, 0.0);
    }
    setRotationY(radians) {
      if (radians == null) dart.nullFailed(I[381], 691, 28, "radians");
      let c = math.cos(radians);
      let s = math.sin(radians);
      this[_m4storage$][$_set](0, c);
      this[_m4storage$][$_set](1, 0.0);
      this[_m4storage$][$_set](2, -s);
      this[_m4storage$][$_set](4, 0.0);
      this[_m4storage$][$_set](5, 1.0);
      this[_m4storage$][$_set](6, 0.0);
      this[_m4storage$][$_set](8, s);
      this[_m4storage$][$_set](9, 0.0);
      this[_m4storage$][$_set](10, c);
      this[_m4storage$][$_set](3, 0.0);
      this[_m4storage$][$_set](7, 0.0);
      this[_m4storage$][$_set](11, 0.0);
    }
    setRotationZ(radians) {
      if (radians == null) dart.nullFailed(I[381], 709, 28, "radians");
      let c = math.cos(radians);
      let s = math.sin(radians);
      this[_m4storage$][$_set](0, c);
      this[_m4storage$][$_set](1, s);
      this[_m4storage$][$_set](2, 0.0);
      this[_m4storage$][$_set](4, -s);
      this[_m4storage$][$_set](5, c);
      this[_m4storage$][$_set](6, 0.0);
      this[_m4storage$][$_set](8, 0.0);
      this[_m4storage$][$_set](9, 0.0);
      this[_m4storage$][$_set](10, 1.0);
      this[_m4storage$][$_set](3, 0.0);
      this[_m4storage$][$_set](7, 0.0);
      this[_m4storage$][$_set](11, 0.0);
    }
    multiply(arg) {
      if (arg == null) dart.nullFailed(I[381], 727, 25, "arg");
      let m33 = this[_m4storage$][$_get](15);
      let m00 = this[_m4storage$][$_get](0);
      let m01 = this[_m4storage$][$_get](4);
      let m02 = this[_m4storage$][$_get](8);
      let m03 = this[_m4storage$][$_get](12);
      let m10 = this[_m4storage$][$_get](1);
      let m11 = this[_m4storage$][$_get](5);
      let m12 = this[_m4storage$][$_get](9);
      let m13 = this[_m4storage$][$_get](13);
      let m20 = this[_m4storage$][$_get](2);
      let m21 = this[_m4storage$][$_get](6);
      let m22 = this[_m4storage$][$_get](10);
      let m23 = this[_m4storage$][$_get](14);
      let m30 = this[_m4storage$][$_get](3);
      let m31 = this[_m4storage$][$_get](7);
      let m32 = this[_m4storage$][$_get](11);
      let argStorage = arg[_m4storage$];
      let n33 = argStorage[$_get](15);
      let n00 = argStorage[$_get](0);
      let n01 = argStorage[$_get](4);
      let n02 = argStorage[$_get](8);
      let n03 = argStorage[$_get](12);
      let n10 = argStorage[$_get](1);
      let n11 = argStorage[$_get](5);
      let n12 = argStorage[$_get](9);
      let n13 = argStorage[$_get](13);
      let n20 = argStorage[$_get](2);
      let n21 = argStorage[$_get](6);
      let n22 = argStorage[$_get](10);
      let n23 = argStorage[$_get](14);
      let n30 = argStorage[$_get](3);
      let n31 = argStorage[$_get](7);
      let n32 = argStorage[$_get](11);
      this[_m4storage$][$_set](0, dart.notNull(m00) * dart.notNull(n00) + dart.notNull(m01) * dart.notNull(n10) + dart.notNull(m02) * dart.notNull(n20) + dart.notNull(m03) * dart.notNull(n30));
      this[_m4storage$][$_set](4, dart.notNull(m00) * dart.notNull(n01) + dart.notNull(m01) * dart.notNull(n11) + dart.notNull(m02) * dart.notNull(n21) + dart.notNull(m03) * dart.notNull(n31));
      this[_m4storage$][$_set](8, dart.notNull(m00) * dart.notNull(n02) + dart.notNull(m01) * dart.notNull(n12) + dart.notNull(m02) * dart.notNull(n22) + dart.notNull(m03) * dart.notNull(n32));
      this[_m4storage$][$_set](12, dart.notNull(m00) * dart.notNull(n03) + dart.notNull(m01) * dart.notNull(n13) + dart.notNull(m02) * dart.notNull(n23) + dart.notNull(m03) * dart.notNull(n33));
      this[_m4storage$][$_set](1, dart.notNull(m10) * dart.notNull(n00) + dart.notNull(m11) * dart.notNull(n10) + dart.notNull(m12) * dart.notNull(n20) + dart.notNull(m13) * dart.notNull(n30));
      this[_m4storage$][$_set](5, dart.notNull(m10) * dart.notNull(n01) + dart.notNull(m11) * dart.notNull(n11) + dart.notNull(m12) * dart.notNull(n21) + dart.notNull(m13) * dart.notNull(n31));
      this[_m4storage$][$_set](9, dart.notNull(m10) * dart.notNull(n02) + dart.notNull(m11) * dart.notNull(n12) + dart.notNull(m12) * dart.notNull(n22) + dart.notNull(m13) * dart.notNull(n32));
      this[_m4storage$][$_set](13, dart.notNull(m10) * dart.notNull(n03) + dart.notNull(m11) * dart.notNull(n13) + dart.notNull(m12) * dart.notNull(n23) + dart.notNull(m13) * dart.notNull(n33));
      this[_m4storage$][$_set](2, dart.notNull(m20) * dart.notNull(n00) + dart.notNull(m21) * dart.notNull(n10) + dart.notNull(m22) * dart.notNull(n20) + dart.notNull(m23) * dart.notNull(n30));
      this[_m4storage$][$_set](6, dart.notNull(m20) * dart.notNull(n01) + dart.notNull(m21) * dart.notNull(n11) + dart.notNull(m22) * dart.notNull(n21) + dart.notNull(m23) * dart.notNull(n31));
      this[_m4storage$][$_set](10, dart.notNull(m20) * dart.notNull(n02) + dart.notNull(m21) * dart.notNull(n12) + dart.notNull(m22) * dart.notNull(n22) + dart.notNull(m23) * dart.notNull(n32));
      this[_m4storage$][$_set](14, dart.notNull(m20) * dart.notNull(n03) + dart.notNull(m21) * dart.notNull(n13) + dart.notNull(m22) * dart.notNull(n23) + dart.notNull(m23) * dart.notNull(n33));
      this[_m4storage$][$_set](3, dart.notNull(m30) * dart.notNull(n00) + dart.notNull(m31) * dart.notNull(n10) + dart.notNull(m32) * dart.notNull(n20) + dart.notNull(m33) * dart.notNull(n30));
      this[_m4storage$][$_set](7, dart.notNull(m30) * dart.notNull(n01) + dart.notNull(m31) * dart.notNull(n11) + dart.notNull(m32) * dart.notNull(n21) + dart.notNull(m33) * dart.notNull(n31));
      this[_m4storage$][$_set](11, dart.notNull(m30) * dart.notNull(n02) + dart.notNull(m31) * dart.notNull(n12) + dart.notNull(m32) * dart.notNull(n22) + dart.notNull(m33) * dart.notNull(n32));
      this[_m4storage$][$_set](15, dart.notNull(m30) * dart.notNull(n03) + dart.notNull(m31) * dart.notNull(n13) + dart.notNull(m32) * dart.notNull(n23) + dart.notNull(m33) * dart.notNull(n33));
    }
    multiplied(arg) {
      let t$36706;
      if (arg == null) dart.nullFailed(I[381], 780, 30, "arg");
      t$36706 = this.clone();
      return (() => {
        t$36706.multiply(arg);
        return t$36706;
      })();
    }
    transposeMultiply(arg) {
      if (arg == null) dart.nullFailed(I[381], 783, 34, "arg");
      let m33 = this[_m4storage$][$_get](15);
      let m00 = this[_m4storage$][$_get](0);
      let m01 = this[_m4storage$][$_get](1);
      let m02 = this[_m4storage$][$_get](2);
      let m03 = this[_m4storage$][$_get](3);
      let m10 = this[_m4storage$][$_get](4);
      let m11 = this[_m4storage$][$_get](5);
      let m12 = this[_m4storage$][$_get](6);
      let m13 = this[_m4storage$][$_get](7);
      let m20 = this[_m4storage$][$_get](8);
      let m21 = this[_m4storage$][$_get](9);
      let m22 = this[_m4storage$][$_get](10);
      let m23 = this[_m4storage$][$_get](11);
      let m30 = this[_m4storage$][$_get](12);
      let m31 = this[_m4storage$][$_get](13);
      let m32 = this[_m4storage$][$_get](14);
      let argStorage = arg[_m4storage$];
      this[_m4storage$][$_set](0, dart.notNull(m00) * dart.notNull(argStorage[$_get](0)) + dart.notNull(m01) * dart.notNull(argStorage[$_get](1)) + dart.notNull(m02) * dart.notNull(argStorage[$_get](2)) + dart.notNull(m03) * dart.notNull(argStorage[$_get](3)));
      this[_m4storage$][$_set](4, dart.notNull(m00) * dart.notNull(argStorage[$_get](4)) + dart.notNull(m01) * dart.notNull(argStorage[$_get](5)) + dart.notNull(m02) * dart.notNull(argStorage[$_get](6)) + dart.notNull(m03) * dart.notNull(argStorage[$_get](7)));
      this[_m4storage$][$_set](8, dart.notNull(m00) * dart.notNull(argStorage[$_get](8)) + dart.notNull(m01) * dart.notNull(argStorage[$_get](9)) + dart.notNull(m02) * dart.notNull(argStorage[$_get](10)) + dart.notNull(m03) * dart.notNull(argStorage[$_get](11)));
      this[_m4storage$][$_set](12, dart.notNull(m00) * dart.notNull(argStorage[$_get](12)) + dart.notNull(m01) * dart.notNull(argStorage[$_get](13)) + dart.notNull(m02) * dart.notNull(argStorage[$_get](14)) + dart.notNull(m03) * dart.notNull(argStorage[$_get](15)));
      this[_m4storage$][$_set](1, dart.notNull(m10) * dart.notNull(argStorage[$_get](0)) + dart.notNull(m11) * dart.notNull(argStorage[$_get](1)) + dart.notNull(m12) * dart.notNull(argStorage[$_get](2)) + dart.notNull(m13) * dart.notNull(argStorage[$_get](3)));
      this[_m4storage$][$_set](5, dart.notNull(m10) * dart.notNull(argStorage[$_get](4)) + dart.notNull(m11) * dart.notNull(argStorage[$_get](5)) + dart.notNull(m12) * dart.notNull(argStorage[$_get](6)) + dart.notNull(m13) * dart.notNull(argStorage[$_get](7)));
      this[_m4storage$][$_set](9, dart.notNull(m10) * dart.notNull(argStorage[$_get](8)) + dart.notNull(m11) * dart.notNull(argStorage[$_get](9)) + dart.notNull(m12) * dart.notNull(argStorage[$_get](10)) + dart.notNull(m13) * dart.notNull(argStorage[$_get](11)));
      this[_m4storage$][$_set](13, dart.notNull(m10) * dart.notNull(argStorage[$_get](12)) + dart.notNull(m11) * dart.notNull(argStorage[$_get](13)) + dart.notNull(m12) * dart.notNull(argStorage[$_get](14)) + dart.notNull(m13) * dart.notNull(argStorage[$_get](15)));
      this[_m4storage$][$_set](2, dart.notNull(m20) * dart.notNull(argStorage[$_get](0)) + dart.notNull(m21) * dart.notNull(argStorage[$_get](1)) + dart.notNull(m22) * dart.notNull(argStorage[$_get](2)) + dart.notNull(m23) * dart.notNull(argStorage[$_get](3)));
      this[_m4storage$][$_set](6, dart.notNull(m20) * dart.notNull(argStorage[$_get](4)) + dart.notNull(m21) * dart.notNull(argStorage[$_get](5)) + dart.notNull(m22) * dart.notNull(argStorage[$_get](6)) + dart.notNull(m23) * dart.notNull(argStorage[$_get](7)));
      this[_m4storage$][$_set](10, dart.notNull(m20) * dart.notNull(argStorage[$_get](8)) + dart.notNull(m21) * dart.notNull(argStorage[$_get](9)) + dart.notNull(m22) * dart.notNull(argStorage[$_get](10)) + dart.notNull(m23) * dart.notNull(argStorage[$_get](11)));
      this[_m4storage$][$_set](14, dart.notNull(m20) * dart.notNull(argStorage[$_get](12)) + dart.notNull(m21) * dart.notNull(argStorage[$_get](13)) + dart.notNull(m22) * dart.notNull(argStorage[$_get](14)) + dart.notNull(m23) * dart.notNull(argStorage[$_get](15)));
      this[_m4storage$][$_set](3, dart.notNull(m30) * dart.notNull(argStorage[$_get](0)) + dart.notNull(m31) * dart.notNull(argStorage[$_get](1)) + dart.notNull(m32) * dart.notNull(argStorage[$_get](2)) + dart.notNull(m33) * dart.notNull(argStorage[$_get](3)));
      this[_m4storage$][$_set](7, dart.notNull(m30) * dart.notNull(argStorage[$_get](4)) + dart.notNull(m31) * dart.notNull(argStorage[$_get](5)) + dart.notNull(m32) * dart.notNull(argStorage[$_get](6)) + dart.notNull(m33) * dart.notNull(argStorage[$_get](7)));
      this[_m4storage$][$_set](11, dart.notNull(m30) * dart.notNull(argStorage[$_get](8)) + dart.notNull(m31) * dart.notNull(argStorage[$_get](9)) + dart.notNull(m32) * dart.notNull(argStorage[$_get](10)) + dart.notNull(m33) * dart.notNull(argStorage[$_get](11)));
      this[_m4storage$][$_set](15, dart.notNull(m30) * dart.notNull(argStorage[$_get](12)) + dart.notNull(m31) * dart.notNull(argStorage[$_get](13)) + dart.notNull(m32) * dart.notNull(argStorage[$_get](14)) + dart.notNull(m33) * dart.notNull(argStorage[$_get](15)));
    }
    multiplyTranspose(arg) {
      if (arg == null) dart.nullFailed(I[381], 869, 34, "arg");
      let m00 = this[_m4storage$][$_get](0);
      let m01 = this[_m4storage$][$_get](4);
      let m02 = this[_m4storage$][$_get](8);
      let m03 = this[_m4storage$][$_get](12);
      let m10 = this[_m4storage$][$_get](1);
      let m11 = this[_m4storage$][$_get](5);
      let m12 = this[_m4storage$][$_get](9);
      let m13 = this[_m4storage$][$_get](13);
      let m20 = this[_m4storage$][$_get](2);
      let m21 = this[_m4storage$][$_get](6);
      let m22 = this[_m4storage$][$_get](10);
      let m23 = this[_m4storage$][$_get](14);
      let m30 = this[_m4storage$][$_get](3);
      let m31 = this[_m4storage$][$_get](7);
      let m32 = this[_m4storage$][$_get](11);
      let m33 = this[_m4storage$][$_get](15);
      let argStorage = arg[_m4storage$];
      this[_m4storage$][$_set](0, dart.notNull(m00) * dart.notNull(argStorage[$_get](0)) + dart.notNull(m01) * dart.notNull(argStorage[$_get](4)) + dart.notNull(m02) * dart.notNull(argStorage[$_get](8)) + dart.notNull(m03) * dart.notNull(argStorage[$_get](12)));
      this[_m4storage$][$_set](4, dart.notNull(m00) * dart.notNull(argStorage[$_get](1)) + dart.notNull(m01) * dart.notNull(argStorage[$_get](5)) + dart.notNull(m02) * dart.notNull(argStorage[$_get](9)) + dart.notNull(m03) * dart.notNull(argStorage[$_get](13)));
      this[_m4storage$][$_set](8, dart.notNull(m00) * dart.notNull(argStorage[$_get](2)) + dart.notNull(m01) * dart.notNull(argStorage[$_get](6)) + dart.notNull(m02) * dart.notNull(argStorage[$_get](10)) + dart.notNull(m03) * dart.notNull(argStorage[$_get](14)));
      this[_m4storage$][$_set](12, dart.notNull(m00) * dart.notNull(argStorage[$_get](3)) + dart.notNull(m01) * dart.notNull(argStorage[$_get](7)) + dart.notNull(m02) * dart.notNull(argStorage[$_get](11)) + dart.notNull(m03) * dart.notNull(argStorage[$_get](15)));
      this[_m4storage$][$_set](1, dart.notNull(m10) * dart.notNull(argStorage[$_get](0)) + dart.notNull(m11) * dart.notNull(argStorage[$_get](4)) + dart.notNull(m12) * dart.notNull(argStorage[$_get](8)) + dart.notNull(m13) * dart.notNull(argStorage[$_get](12)));
      this[_m4storage$][$_set](5, dart.notNull(m10) * dart.notNull(argStorage[$_get](1)) + dart.notNull(m11) * dart.notNull(argStorage[$_get](5)) + dart.notNull(m12) * dart.notNull(argStorage[$_get](9)) + dart.notNull(m13) * dart.notNull(argStorage[$_get](13)));
      this[_m4storage$][$_set](9, dart.notNull(m10) * dart.notNull(argStorage[$_get](2)) + dart.notNull(m11) * dart.notNull(argStorage[$_get](6)) + dart.notNull(m12) * dart.notNull(argStorage[$_get](10)) + dart.notNull(m13) * dart.notNull(argStorage[$_get](14)));
      this[_m4storage$][$_set](13, dart.notNull(m10) * dart.notNull(argStorage[$_get](3)) + dart.notNull(m11) * dart.notNull(argStorage[$_get](7)) + dart.notNull(m12) * dart.notNull(argStorage[$_get](11)) + dart.notNull(m13) * dart.notNull(argStorage[$_get](15)));
      this[_m4storage$][$_set](2, dart.notNull(m20) * dart.notNull(argStorage[$_get](0)) + dart.notNull(m21) * dart.notNull(argStorage[$_get](4)) + dart.notNull(m22) * dart.notNull(argStorage[$_get](8)) + dart.notNull(m23) * dart.notNull(argStorage[$_get](12)));
      this[_m4storage$][$_set](6, dart.notNull(m20) * dart.notNull(argStorage[$_get](1)) + dart.notNull(m21) * dart.notNull(argStorage[$_get](5)) + dart.notNull(m22) * dart.notNull(argStorage[$_get](9)) + dart.notNull(m23) * dart.notNull(argStorage[$_get](13)));
      this[_m4storage$][$_set](10, dart.notNull(m20) * dart.notNull(argStorage[$_get](2)) + dart.notNull(m21) * dart.notNull(argStorage[$_get](6)) + dart.notNull(m22) * dart.notNull(argStorage[$_get](10)) + dart.notNull(m23) * dart.notNull(argStorage[$_get](14)));
      this[_m4storage$][$_set](14, dart.notNull(m20) * dart.notNull(argStorage[$_get](3)) + dart.notNull(m21) * dart.notNull(argStorage[$_get](7)) + dart.notNull(m22) * dart.notNull(argStorage[$_get](11)) + dart.notNull(m23) * dart.notNull(argStorage[$_get](15)));
      this[_m4storage$][$_set](3, dart.notNull(m30) * dart.notNull(argStorage[$_get](0)) + dart.notNull(m31) * dart.notNull(argStorage[$_get](4)) + dart.notNull(m32) * dart.notNull(argStorage[$_get](8)) + dart.notNull(m33) * dart.notNull(argStorage[$_get](12)));
      this[_m4storage$][$_set](7, dart.notNull(m30) * dart.notNull(argStorage[$_get](1)) + dart.notNull(m31) * dart.notNull(argStorage[$_get](5)) + dart.notNull(m32) * dart.notNull(argStorage[$_get](9)) + dart.notNull(m33) * dart.notNull(argStorage[$_get](13)));
      this[_m4storage$][$_set](11, dart.notNull(m30) * dart.notNull(argStorage[$_get](2)) + dart.notNull(m31) * dart.notNull(argStorage[$_get](6)) + dart.notNull(m32) * dart.notNull(argStorage[$_get](10)) + dart.notNull(m33) * dart.notNull(argStorage[$_get](14)));
      this[_m4storage$][$_set](15, dart.notNull(m30) * dart.notNull(argStorage[$_get](3)) + dart.notNull(m31) * dart.notNull(argStorage[$_get](7)) + dart.notNull(m32) * dart.notNull(argStorage[$_get](11)) + dart.notNull(m33) * dart.notNull(argStorage[$_get](15)));
    }
    transform3(vector) {
      if (vector == null) dart.nullFailed(I[381], 954, 31, "vector");
      let x = dart.notNull(this[_m4storage$][$_get](0)) * dart.notNull(vector[$_get](0)) + dart.notNull(this[_m4storage$][$_get](4)) * dart.notNull(vector[$_get](1)) + dart.notNull(this[_m4storage$][$_get](8)) * dart.notNull(vector[$_get](2)) + dart.notNull(this[_m4storage$][$_get](12));
      let y = dart.notNull(this[_m4storage$][$_get](1)) * dart.notNull(vector[$_get](0)) + dart.notNull(this[_m4storage$][$_get](5)) * dart.notNull(vector[$_get](1)) + dart.notNull(this[_m4storage$][$_get](9)) * dart.notNull(vector[$_get](2)) + dart.notNull(this[_m4storage$][$_get](13));
      let z = dart.notNull(this[_m4storage$][$_get](2)) * dart.notNull(vector[$_get](0)) + dart.notNull(this[_m4storage$][$_get](6)) * dart.notNull(vector[$_get](1)) + dart.notNull(this[_m4storage$][$_get](10)) * dart.notNull(vector[$_get](2)) + dart.notNull(this[_m4storage$][$_get](14));
      vector[$_set](0, x);
      vector[$_set](1, y);
      vector[$_set](2, z);
    }
    transform2(vector) {
      if (vector == null) dart.nullFailed(I[381], 976, 31, "vector");
      let x = vector[$_get](0);
      let y = vector[$_get](1);
      vector[$_set](0, dart.notNull(this[_m4storage$][$_get](0)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](4)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](12)));
      vector[$_set](1, dart.notNull(this[_m4storage$][$_get](1)) * dart.notNull(x) + dart.notNull(this[_m4storage$][$_get](5)) * dart.notNull(y) + dart.notNull(this[_m4storage$][$_get](13)));
    }
    transformRect(rect) {
      if (rect == null) dart.nullFailed(I[381], 989, 33, "rect");
      return _engine.transformRectWithMatrix(this, rect);
    }
    copyIntoArray(array, offset = 0) {
      if (array == null) dart.nullFailed(I[381], 992, 32, "array");
      if (offset == null) dart.nullFailed(I[381], 992, 44, "offset");
      let i = offset;
      array[$_set](dart.notNull(i) + 15, this[_m4storage$][$_get](15));
      array[$_set](dart.notNull(i) + 14, this[_m4storage$][$_get](14));
      array[$_set](dart.notNull(i) + 13, this[_m4storage$][$_get](13));
      array[$_set](dart.notNull(i) + 12, this[_m4storage$][$_get](12));
      array[$_set](dart.notNull(i) + 11, this[_m4storage$][$_get](11));
      array[$_set](dart.notNull(i) + 10, this[_m4storage$][$_get](10));
      array[$_set](dart.notNull(i) + 9, this[_m4storage$][$_get](9));
      array[$_set](dart.notNull(i) + 8, this[_m4storage$][$_get](8));
      array[$_set](dart.notNull(i) + 7, this[_m4storage$][$_get](7));
      array[$_set](dart.notNull(i) + 6, this[_m4storage$][$_get](6));
      array[$_set](dart.notNull(i) + 5, this[_m4storage$][$_get](5));
      array[$_set](dart.notNull(i) + 4, this[_m4storage$][$_get](4));
      array[$_set](dart.notNull(i) + 3, this[_m4storage$][$_get](3));
      array[$_set](dart.notNull(i) + 2, this[_m4storage$][$_get](2));
      array[$_set](dart.notNull(i) + 1, this[_m4storage$][$_get](1));
      array[$_set](dart.notNull(i) + 0, this[_m4storage$][$_get](0));
    }
    copyFromArray(array, offset = 0) {
      if (array == null) dart.nullFailed(I[381], 1013, 35, "array");
      if (offset == null) dart.nullFailed(I[381], 1013, 47, "offset");
      let i = offset;
      this[_m4storage$][$_set](15, array[$_get](dart.notNull(i) + 15));
      this[_m4storage$][$_set](14, array[$_get](dart.notNull(i) + 14));
      this[_m4storage$][$_set](13, array[$_get](dart.notNull(i) + 13));
      this[_m4storage$][$_set](12, array[$_get](dart.notNull(i) + 12));
      this[_m4storage$][$_set](11, array[$_get](dart.notNull(i) + 11));
      this[_m4storage$][$_set](10, array[$_get](dart.notNull(i) + 10));
      this[_m4storage$][$_set](9, array[$_get](dart.notNull(i) + 9));
      this[_m4storage$][$_set](8, array[$_get](dart.notNull(i) + 8));
      this[_m4storage$][$_set](7, array[$_get](dart.notNull(i) + 7));
      this[_m4storage$][$_set](6, array[$_get](dart.notNull(i) + 6));
      this[_m4storage$][$_set](5, array[$_get](dart.notNull(i) + 5));
      this[_m4storage$][$_set](4, array[$_get](dart.notNull(i) + 4));
      this[_m4storage$][$_set](3, array[$_get](dart.notNull(i) + 3));
      this[_m4storage$][$_set](2, array[$_get](dart.notNull(i) + 2));
      this[_m4storage$][$_set](1, array[$_get](dart.notNull(i) + 1));
      this[_m4storage$][$_set](0, array[$_get](dart.notNull(i) + 0));
    }
    toFloat64() {
      return _native_typed_data.NativeFloat64List.fromList(this[_m4storage$]);
    }
    toString() {
      let result = super[$toString]();
      if (!dart.test(dart.fn(() => {
        const fmt = index => {
          if (index == null) dart.nullFailed(I[381], 1049, 22, "index");
          return this.storage[$_get](index)[$toStringAsFixed](2);
        };
        dart.fn(fmt, T$.intToString());
        result = "[" + dart.str(fmt(0)) + ", " + dart.str(fmt(4)) + ", " + dart.str(fmt(8)) + ", " + dart.str(fmt(12)) + "]\n" + "[" + dart.str(fmt(1)) + ", " + dart.str(fmt(5)) + ", " + dart.str(fmt(9)) + ", " + dart.str(fmt(13)) + "]\n" + "[" + dart.str(fmt(2)) + ", " + dart.str(fmt(6)) + ", " + dart.str(fmt(10)) + ", " + dart.str(fmt(14)) + "]\n" + "[" + dart.str(fmt(3)) + ", " + dart.str(fmt(7)) + ", " + dart.str(fmt(11)) + ", " + dart.str(fmt(15)) + "]";
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[381], 1048, 12, "() {\n      String fmt(int index) {\n        return storage[index].toStringAsFixed(2);\n      }\n\n      result = '[${fmt(0)}, ${fmt(4)}, ${fmt(8)}, ${fmt(12)}]\\n'\n               '[${fmt(1)}, ${fmt(5)}, ${fmt(9)}, ${fmt(13)}]\\n'\n               '[${fmt(2)}, ${fmt(6)}, ${fmt(10)}, ${fmt(14)}]\\n'\n               '[${fmt(3)}, ${fmt(7)}, ${fmt(11)}, ${fmt(15)}]';\n      return true;\n    }()");
      return result;
    }
  };
  (_engine.Matrix4.zero = function() {
    this[_m4storage$] = _native_typed_data.NativeFloat32List.new(16);
    ;
  }).prototype = _engine.Matrix4.prototype;
  (_engine.Matrix4.identity = function() {
    this[_m4storage$] = _native_typed_data.NativeFloat32List.new(16);
    this[_m4storage$][$_set](15, 1.0);
    this[_m4storage$][$_set](0, 1.0);
    this[_m4storage$][$_set](5, 1.0);
    this[_m4storage$][$_set](10, 1.0);
  }).prototype = _engine.Matrix4.prototype;
  (_engine.Matrix4.fromFloat32List = function(_m4storage) {
    if (_m4storage == null) dart.nullFailed(I[381], 89, 32, "_m4storage");
    this[_m4storage$] = _m4storage;
    ;
  }).prototype = _engine.Matrix4.prototype;
  (_engine.Matrix4.fromBuffer = function(buffer, offset) {
    if (buffer == null) dart.nullFailed(I[381], 93, 33, "buffer");
    if (offset == null) dart.nullFailed(I[381], 93, 45, "offset");
    this[_m4storage$] = typed_data.Float32List.view(buffer, offset, 16);
    ;
  }).prototype = _engine.Matrix4.prototype;
  dart.addRtiResources(_engine.Matrix4, ["_engine|Matrix4"]);
  dart.setMethodSignature(_engine.Matrix4, () => dart.global.Object.setPrototypeOf({
    index: T$.intAndintToint(),
    entry: T$7.intAndintTodouble(),
    setEntry: T$12.intAndintAnddoubleTovoid(),
    setValues: T$12.doubleAnddoubleAnddouble__Tovoid$9(),
    setFrom: T$9.Matrix4Tovoid(),
    _get: T$0.intTodouble(),
    _set: T$10.intAnddoubleTovoid(),
    clone: T$12.VoidToMatrix4(),
    copyInto: T$12.Matrix4ToMatrix4(),
    translate: T$12.doubleAnddoubleAnddoubleTovoid(),
    scale: T$12.doubleAnddoubleNAnddoubleNTovoid(),
    scaled: T$12.doubleAnddoubleNAnddoubleNToMatrix4(),
    setZero: T$.VoidTovoid(),
    setIdentity: T$.VoidTovoid(),
    transposed: T$12.VoidToMatrix4(),
    transpose: T$.VoidTovoid(),
    determinant: T$.VoidTodouble(),
    perspectiveTransform: T$12.__ToRec(),
    isIdentity: T$.VoidTobool(),
    isIdentityOrTranslation: T$.VoidTobool(),
    getTranslation: T$12.VoidToRec$2(),
    rotate: T$12.RecAnddoubleTovoid(),
    rotateZ: T$9.doubleTovoid(),
    setTranslation: T$12.RecTovoid(),
    setTranslationRaw: T$12.doubleAnddoubleAnddoubleTovoid$1(),
    transposeRotation: T$.VoidTovoid(),
    invert: T$.VoidTodouble(),
    copyInverse: T$12.Matrix4Todouble(),
    invertRotation: T$.VoidTodouble(),
    setRotationX: T$9.doubleTovoid(),
    setRotationY: T$9.doubleTovoid(),
    setRotationZ: T$9.doubleTovoid(),
    multiply: T$9.Matrix4Tovoid(),
    multiplied: T$12.Matrix4ToMatrix4(),
    transposeMultiply: T$9.Matrix4Tovoid(),
    multiplyTranspose: T$9.Matrix4Tovoid(),
    transform3: T$7.Float32ListTovoid(),
    transform2: T$7.Float32ListTovoid(),
    transformRect: T$8.RectToRect(),
    copyIntoArray: T$12.ListOfnumAndintTovoid(),
    copyFromArray: T$12.ListOfdoubleAndintTovoid(),
    toFloat64: T$0.VoidToFloat64List()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.Matrix4))));
  dart.setStaticMethodSignature(_engine.Matrix4, () => ['new', 'copy', 'inverted', 'rotationX', 'rotationY', 'rotationZ', 'translation', 'translationValues', 'diagonal3Values', 'tryInvert']);
  dart.setGetterSignature(_engine.Matrix4, () => dart.global.Object.setPrototypeOf({
    storage: T$0.Float32List(),
    dimension: T$.int()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.Matrix4))));
  dart.setLibraryUri(_engine.Matrix4, I[220]);
  dart.setFieldSignature(_engine.Matrix4, () => dart.global.Object.setPrototypeOf({[_m4storage$]: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.Matrix4))));
  dart.defineExtensionMethods(_engine.Matrix4, ['toString']);
  var matrix$3 = dart.privateName(_engine, "FastMatrix32.matrix");
  var transformedX = dart.privateName(_engine, "FastMatrix32.transformedX");
  var transformedY = dart.privateName(_engine, "FastMatrix32.transformedY");
  _engine.FastMatrix32 = class FastMatrix32 extends core.Object {
    get matrix() {
      return this[matrix$3];
    }
    set matrix(value) {
      super.matrix = value;
    }
    get transformedX() {
      return this[transformedX];
    }
    set transformedX(value) {
      if (value == null) dart.nullFailed(I[381], 1159, 10, "transformedX");
      this[transformedX] = value;
    }
    get transformedY() {
      return this[transformedY];
    }
    set transformedY(value) {
      if (value == null) dart.nullFailed(I[381], 1160, 10, "transformedY");
      this[transformedY] = value;
    }
    static ['_#new#tearOff'](matrix) {
      if (matrix == null) dart.nullFailed(I[381], 1156, 21, "matrix");
      return new _engine.FastMatrix32.new(matrix);
    }
    transform(x, y) {
      if (x == null) dart.nullFailed(I[381], 1164, 25, "x");
      if (y == null) dart.nullFailed(I[381], 1164, 35, "y");
      this.transformedX = dart.notNull(this.matrix[$_get](12)) + dart.notNull(this.matrix[$_get](0)) * dart.notNull(x) + dart.notNull(this.matrix[$_get](4)) * dart.notNull(y);
      this.transformedY = dart.notNull(this.matrix[$_get](13)) + dart.notNull(this.matrix[$_get](1)) * dart.notNull(x) + dart.notNull(this.matrix[$_get](5)) * dart.notNull(y);
    }
    debugToString() {
      return this.matrix[$_get](0)[$toStringAsFixed](3) + ", " + this.matrix[$_get](4)[$toStringAsFixed](3) + ", " + this.matrix[$_get](8)[$toStringAsFixed](3) + ", " + this.matrix[$_get](12)[$toStringAsFixed](3) + "\n" + this.matrix[$_get](1)[$toStringAsFixed](3) + ", " + this.matrix[$_get](5)[$toStringAsFixed](3) + ", " + this.matrix[$_get](9)[$toStringAsFixed](3) + ", " + this.matrix[$_get](13)[$toStringAsFixed](3) + "\n" + this.matrix[$_get](2)[$toStringAsFixed](3) + ", " + this.matrix[$_get](6)[$toStringAsFixed](3) + ", " + this.matrix[$_get](10)[$toStringAsFixed](3) + ", " + this.matrix[$_get](14)[$toStringAsFixed](3) + "\n" + this.matrix[$_get](3)[$toStringAsFixed](3) + ", " + this.matrix[$_get](7)[$toStringAsFixed](3) + ", " + this.matrix[$_get](11)[$toStringAsFixed](3) + ", " + this.matrix[$_get](15)[$toStringAsFixed](3) + "\n";
    }
  };
  (_engine.FastMatrix32.new = function(matrix) {
    if (matrix == null) dart.nullFailed(I[381], 1156, 21, "matrix");
    this[transformedX] = 0.0;
    this[transformedY] = 0.0;
    this[matrix$3] = matrix;
    ;
  }).prototype = _engine.FastMatrix32.prototype;
  dart.addRtiResources(_engine.FastMatrix32, ["_engine|FastMatrix32"]);
  dart.setMethodSignature(_engine.FastMatrix32, () => dart.global.Object.setPrototypeOf({
    transform: T$9.doubleAnddoubleTovoid(),
    debugToString: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FastMatrix32))));
  dart.setLibraryUri(_engine.FastMatrix32, I[220]);
  dart.setFieldSignature(_engine.FastMatrix32, () => dart.global.Object.setPrototypeOf({
    matrix: {type: T$0.Float32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    transformedX: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    transformedY: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FastMatrix32))));
  var __CustomElementDimensionsProvider__hostElementResizeObserver = dart.privateName(_engine, "_#CustomElementDimensionsProvider#_hostElementResizeObserver");
  var __CustomElementDimensionsProvider__hostElementResizeObserver_isSet = dart.privateName(_engine, "_#CustomElementDimensionsProvider#_hostElementResizeObserver#isSet");
  var __CustomElementDimensionsProvider__dprChangeStreamSubscription = dart.privateName(_engine, "_#CustomElementDimensionsProvider#_dprChangeStreamSubscription");
  var __CustomElementDimensionsProvider__dprChangeStreamSubscription_isSet = dart.privateName(_engine, "_#CustomElementDimensionsProvider#_dprChangeStreamSubscription#isSet");
  var _onResizeStreamController = dart.privateName(_engine, "_onResizeStreamController");
  var _hostElement$ = dart.privateName(_engine, "_hostElement");
  var _dprChangeStreamSubscription = dart.privateName(_engine, "_dprChangeStreamSubscription");
  var _broadcastSize = dart.privateName(_engine, "_broadcastSize");
  var _hostElementResizeObserver = dart.privateName(_engine, "_hostElementResizeObserver");
  var isClosed$ = dart.privateName(_engine, "DimensionsProvider.isClosed");
  _engine.DimensionsProvider = class DimensionsProvider extends core.Object {
    get isClosed() {
      return this[isClosed$];
    }
    set isClosed(value) {
      if (value == null) dart.nullFailed(I[383], 65, 8, "isClosed");
      this[isClosed$] = value;
    }
    static create(opts) {
      let hostElement = opts && 'hostElement' in opts ? opts.hostElement : null;
      if (hostElement != null) {
        return new _engine.CustomElementDimensionsProvider.new(hostElement, {onDprChange: _engine.DisplayDprStream.instance.dprChanged});
      } else {
        return new _engine.FullPageDimensionsProvider.new();
      }
    }
    static ['_#create#tearOff'](opts) {
      let hostElement = opts && 'hostElement' in opts ? opts.hostElement : null;
      return _engine.DimensionsProvider.create({hostElement: hostElement});
    }
    close() {
      this.isClosed = true;
    }
  };
  (_engine.DimensionsProvider.new = function() {
    this[isClosed$] = false;
    ;
  }).prototype = _engine.DimensionsProvider.prototype;
  dart.addRtiResources(_engine.DimensionsProvider, ["_engine|DimensionsProvider"]);
  dart.setMethodSignature(_engine.DimensionsProvider, () => dart.global.Object.setPrototypeOf({close: T$.VoidTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DimensionsProvider))));
  dart.setStaticMethodSignature(_engine.DimensionsProvider, () => ['create']);
  dart.setLibraryUri(_engine.DimensionsProvider, I[220]);
  dart.setFieldSignature(_engine.DimensionsProvider, () => dart.global.Object.setPrototypeOf({isClosed: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DimensionsProvider))));
  _engine.CustomElementDimensionsProvider = class CustomElementDimensionsProvider extends _engine.DimensionsProvider {
    static ['_#new#tearOff'](_hostElement, opts) {
      if (_hostElement == null) dart.nullFailed(I[382], 25, 40, "_hostElement");
      let onDprChange = opts && 'onDprChange' in opts ? opts.onDprChange : null;
      return new _engine.CustomElementDimensionsProvider.new(_hostElement, {onDprChange: onDprChange});
    }
    get [_hostElementResizeObserver]() {
      return dart.test(this[__CustomElementDimensionsProvider__hostElementResizeObserver_isSet]) ? this[__CustomElementDimensionsProvider__hostElementResizeObserver] : dart.throw(new _internal.LateError.fieldNI("_hostElementResizeObserver"));
    }
    set [_hostElementResizeObserver](_hostElementResizeObserver$35param) {
      this[__CustomElementDimensionsProvider__hostElementResizeObserver_isSet] = true;
      this[__CustomElementDimensionsProvider__hostElementResizeObserver] = _hostElementResizeObserver$35param;
    }
    get [_dprChangeStreamSubscription]() {
      return dart.test(this[__CustomElementDimensionsProvider__dprChangeStreamSubscription_isSet]) ? this[__CustomElementDimensionsProvider__dprChangeStreamSubscription] : dart.throw(new _internal.LateError.fieldNI("_dprChangeStreamSubscription"));
    }
    set [_dprChangeStreamSubscription](_dprChangeStreamSubscription$35param) {
      this[__CustomElementDimensionsProvider__dprChangeStreamSubscription_isSet] = true;
      this[__CustomElementDimensionsProvider__dprChangeStreamSubscription] = _dprChangeStreamSubscription$35param;
    }
    [_broadcastSize](size) {
      this[_onResizeStreamController].add(size);
    }
    close() {
      let t$36706, t$36706$;
      super.close();
      t$36706 = this[_hostElementResizeObserver];
      t$36706 == null ? null : t$36706.disconnect();
      t$36706$ = this[_dprChangeStreamSubscription];
      t$36706$ == null ? null : t$36706$.cancel();
      this[_onResizeStreamController].close();
    }
    get onResize() {
      return this[_onResizeStreamController].stream;
    }
    computePhysicalSize() {
      let devicePixelRatio = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
      return new ui.Size.new(dart.notNull(_engine['DomElementExtension|get#clientWidth'](this[_hostElement$])) * dart.notNull(devicePixelRatio), dart.notNull(_engine['DomElementExtension|get#clientHeight'](this[_hostElement$])) * dart.notNull(devicePixelRatio));
    }
    computeKeyboardInsets(physicalHeight, isEditingOnMobile) {
      if (physicalHeight == null) dart.nullFailed(I[382], 92, 12, "physicalHeight");
      if (isEditingOnMobile == null) dart.nullFailed(I[382], 93, 10, "isEditingOnMobile");
      return C[635] || CT.C635;
    }
  };
  (_engine.CustomElementDimensionsProvider.new = function(_hostElement, opts) {
    let t$36706, t$36706$;
    if (_hostElement == null) dart.nullFailed(I[382], 25, 40, "_hostElement");
    let onDprChange = opts && 'onDprChange' in opts ? opts.onDprChange : null;
    this[__CustomElementDimensionsProvider__hostElementResizeObserver] = null;
    this[__CustomElementDimensionsProvider__hostElementResizeObserver_isSet] = false;
    this[__CustomElementDimensionsProvider__dprChangeStreamSubscription] = null;
    this[__CustomElementDimensionsProvider__dprChangeStreamSubscription_isSet] = false;
    this[_onResizeStreamController] = G$.StreamControllerOfSizeN().broadcast();
    this[_hostElement$] = _hostElement;
    dart.global.Object.getPrototypeOf(_engine.CustomElementDimensionsProvider).new.call(this);
    this[_dprChangeStreamSubscription] = (t$36706 = onDprChange, t$36706 == null ? null : t$36706.listen(dart.fn(_ => {
      if (_ == null) dart.nullFailed(I[382], 29, 57, "_");
      this[_broadcastSize](null);
    }, T$9.doubleTovoid())));
    this[_hostElementResizeObserver] = _engine.createDomResizeObserver(dart.fn((entries, _) => {
      if (entries == null) dart.nullFailed(I[382], 35, 36, "entries");
      if (_ == null) dart.nullFailed(I[382], 36, 25, "_");
      for (let _ of entries) {
        this[_broadcastSize](null);
      }
    }, T$12.ListOfDomResizeObserverEntryAndDomResizeObserverTovoid()));
    if (!dart.test(dart.fn(() => {
      if (this[_hostElementResizeObserver] == null) {
        _engine['DomConsoleExtension|warn'](js_util.getProperty(T$9.DomConsole(), dart.jsInteropNullCheck(dart.global.window), "console"), "ResizeObserver API not supported. Flutter will not resize with its hostElement.");
      }
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[382], 43, 12, "() {\n      if (_hostElementResizeObserver == null) {\n        domWindow.console.warn('ResizeObserver API not supported. '\n            'Flutter will not resize with its hostElement.');\n      }\n      return true;\n    }()");
    t$36706$ = this[_hostElementResizeObserver];
    t$36706$ == null ? null : t$36706$.observe(this[_hostElement$]);
  }).prototype = _engine.CustomElementDimensionsProvider.prototype;
  dart.addRtiResources(_engine.CustomElementDimensionsProvider, ["_engine|CustomElementDimensionsProvider"]);
  dart.setMethodSignature(_engine.CustomElementDimensionsProvider, () => dart.global.Object.setPrototypeOf({
    [_broadcastSize]: T$12.SizeNTovoid(),
    computePhysicalSize: T$12.VoidToSize(),
    computeKeyboardInsets: T$12.doubleAndboolToViewPadding()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CustomElementDimensionsProvider))));
  dart.setGetterSignature(_engine.CustomElementDimensionsProvider, () => dart.global.Object.setPrototypeOf({
    [_hostElementResizeObserver]: T$12.DomResizeObserverN(),
    [_dprChangeStreamSubscription]: T$12.StreamSubscriptionNOfdouble(),
    onResize: T$12.StreamOfSizeN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CustomElementDimensionsProvider))));
  dart.setSetterSignature(_engine.CustomElementDimensionsProvider, () => dart.global.Object.setPrototypeOf({
    [_hostElementResizeObserver]: T$12.DomResizeObserverN(),
    [_dprChangeStreamSubscription]: T$12.StreamSubscriptionNOfdouble()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CustomElementDimensionsProvider))));
  dart.setLibraryUri(_engine.CustomElementDimensionsProvider, I[220]);
  dart.setFieldSignature(_engine.CustomElementDimensionsProvider, () => dart.global.Object.setPrototypeOf({
    [_hostElement$]: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__CustomElementDimensionsProvider__hostElementResizeObserver]: {type: T$12.DomResizeObserverN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CustomElementDimensionsProvider__hostElementResizeObserver_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__CustomElementDimensionsProvider__dprChangeStreamSubscription]: {type: T$12.StreamSubscriptionNOfdouble(), isConst: false, isFinal: false, libraryUri: I[39]},
    [__CustomElementDimensionsProvider__dprChangeStreamSubscription_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_onResizeStreamController]: {type: T$12.StreamControllerOfSizeN(), isConst: false, isFinal: true, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CustomElementDimensionsProvider))));
  var __FullPageDimensionsProvider__domResizeSubscription = dart.privateName(_engine, "_#FullPageDimensionsProvider#_domResizeSubscription");
  var __FullPageDimensionsProvider__domResizeSubscription_isSet = dart.privateName(_engine, "_#FullPageDimensionsProvider#_domResizeSubscription#isSet");
  var _domResizeSubscription = dart.privateName(_engine, "_domResizeSubscription");
  var _onVisualViewportResize = dart.privateName(_engine, "_onVisualViewportResize");
  _engine.FullPageDimensionsProvider = class FullPageDimensionsProvider extends _engine.DimensionsProvider {
    static ['_#new#tearOff']() {
      return new _engine.FullPageDimensionsProvider.new();
    }
    get [_domResizeSubscription]() {
      let t$36706;
      return dart.test(this[__FullPageDimensionsProvider__domResizeSubscription_isSet]) ? (t$36706 = this[__FullPageDimensionsProvider__domResizeSubscription], t$36706) : dart.throw(new _internal.LateError.fieldNI("_domResizeSubscription"));
    }
    set [_domResizeSubscription](_domResizeSubscription$35param) {
      if (_domResizeSubscription$35param == null) dart.nullFailed(I[384], 34, 24, "_domResizeSubscription#param");
      this[__FullPageDimensionsProvider__domResizeSubscription_isSet] = true;
      this[__FullPageDimensionsProvider__domResizeSubscription] = _domResizeSubscription$35param;
    }
    [_onVisualViewportResize](event) {
      if (event == null) dart.nullFailed(I[384], 38, 41, "event");
      this[_onResizeStreamController].add(null);
    }
    close() {
      super.close();
      this[_domResizeSubscription].cancel();
      this[_onResizeStreamController].close();
    }
    get onResize() {
      return this[_onResizeStreamController].stream;
    }
    computePhysicalSize() {
      let windowInnerWidth = null;
      let t$36$35windowInnerWidth$35isSet = false;
      function t$36$35windowInnerWidth$35get() {
        return t$36$35windowInnerWidth$35isSet ? windowInnerWidth : dart.throw(new _internal.LateError.localNI("windowInnerWidth"));
      }
      function t$36$35windowInnerWidth$35set(windowInnerWidth$35param) {
        if (windowInnerWidth$35param == null) dart.nullFailed(I[384], 62, 17, "windowInnerWidth#param");
        t$36$35windowInnerWidth$35isSet = true;
        return windowInnerWidth = windowInnerWidth$35param;
      }
      let windowInnerHeight = null;
      let t$36$35windowInnerHeight$35isSet = false;
      function t$36$35windowInnerHeight$35get() {
        return t$36$35windowInnerHeight$35isSet ? windowInnerHeight : dart.throw(new _internal.LateError.localNI("windowInnerHeight"));
      }
      function t$36$35windowInnerHeight$35set(windowInnerHeight$35param) {
        if (windowInnerHeight$35param == null) dart.nullFailed(I[384], 63, 17, "windowInnerHeight#param");
        t$36$35windowInnerHeight$35isSet = true;
        return windowInnerHeight = windowInnerHeight$35param;
      }
      let viewport = js_util.getProperty(T$12.DomVisualViewportN(), dart.jsInteropNullCheck(dart.global.window), "visualViewport");
      let devicePixelRatio = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
      if (viewport != null) {
        if (ui_web.browser.operatingSystem == ui_web.OperatingSystem.iOs) {
          let docWidth = _engine['DomElementExtension|get#clientWidth'](dart.nullCheck(js_util.getProperty(T$9.DomElementN(), dart.jsInteropNullCheck(dart.global.document), "documentElement")));
          let docHeight = _engine['DomElementExtension|get#clientHeight'](dart.nullCheck(js_util.getProperty(T$9.DomElementN(), dart.jsInteropNullCheck(dart.global.document), "documentElement")));
          t$36$35windowInnerWidth$35set(dart.notNull(docWidth) * dart.notNull(devicePixelRatio));
          t$36$35windowInnerHeight$35set(dart.notNull(docHeight) * dart.notNull(devicePixelRatio));
        } else {
          t$36$35windowInnerWidth$35set(dart.nullCheck(_engine['DomVisualViewportExtension|get#width'](viewport)) * dart.notNull(devicePixelRatio));
          t$36$35windowInnerHeight$35set(dart.nullCheck(_engine['DomVisualViewportExtension|get#height'](viewport)) * dart.notNull(devicePixelRatio));
        }
      } else {
        t$36$35windowInnerWidth$35set(dart.nullCheck(_engine['DomWindowExtension|get#innerWidth'](dart.jsInteropNullCheck(dart.global.window))) * dart.notNull(devicePixelRatio));
        t$36$35windowInnerHeight$35set(dart.nullCheck(_engine['DomWindowExtension|get#innerHeight'](dart.jsInteropNullCheck(dart.global.window))) * dart.notNull(devicePixelRatio));
      }
      return new ui.Size.new(t$36$35windowInnerWidth$35get(), t$36$35windowInnerHeight$35get());
    }
    computeKeyboardInsets(physicalHeight, isEditingOnMobile) {
      if (physicalHeight == null) dart.nullFailed(I[384], 97, 12, "physicalHeight");
      if (isEditingOnMobile == null) dart.nullFailed(I[384], 98, 10, "isEditingOnMobile");
      let devicePixelRatio = _engine.EngineFlutterDisplay.instance.devicePixelRatio;
      let viewport = js_util.getProperty(T$12.DomVisualViewportN(), dart.jsInteropNullCheck(dart.global.window), "visualViewport");
      let windowInnerHeight = null;
      let t$36$35windowInnerHeight$35isSet = false;
      function t$36$35windowInnerHeight$35get() {
        return t$36$35windowInnerHeight$35isSet ? windowInnerHeight : dart.throw(new _internal.LateError.localNI("windowInnerHeight"));
      }
      function t$36$35windowInnerHeight$35set(windowInnerHeight$35param) {
        if (windowInnerHeight$35param == null) dart.nullFailed(I[384], 102, 17, "windowInnerHeight#param");
        t$36$35windowInnerHeight$35isSet = true;
        return windowInnerHeight = windowInnerHeight$35param;
      }
      if (viewport != null) {
        if (ui_web.browser.operatingSystem == ui_web.OperatingSystem.iOs && !dart.test(isEditingOnMobile)) {
          t$36$35windowInnerHeight$35set(dart.notNull(_engine['DomElementExtension|get#clientHeight'](dart.nullCheck(js_util.getProperty(T$9.DomElementN(), dart.jsInteropNullCheck(dart.global.document), "documentElement")))) * dart.notNull(devicePixelRatio));
        } else {
          t$36$35windowInnerHeight$35set(dart.nullCheck(_engine['DomVisualViewportExtension|get#height'](viewport)) * dart.notNull(devicePixelRatio));
        }
      } else {
        t$36$35windowInnerHeight$35set(dart.nullCheck(_engine['DomWindowExtension|get#innerHeight'](dart.jsInteropNullCheck(dart.global.window))) * dart.notNull(devicePixelRatio));
      }
      let bottomPadding = dart.notNull(physicalHeight) - dart.notNull(t$36$35windowInnerHeight$35get());
      return new _engine.ViewPadding.new({bottom: bottomPadding, left: 0.0, right: 0.0, top: 0.0});
    }
  };
  (_engine.FullPageDimensionsProvider.new = function() {
    let t$36706;
    this[__FullPageDimensionsProvider__domResizeSubscription] = null;
    this[__FullPageDimensionsProvider__domResizeSubscription_isSet] = false;
    this[_onResizeStreamController] = G$.StreamControllerOfSizeN().broadcast();
    dart.global.Object.getPrototypeOf(_engine.FullPageDimensionsProvider).new.call(this);
    let resizeEventTarget = (t$36706 = js_util.getProperty(T$12.DomVisualViewportN(), dart.jsInteropNullCheck(dart.global.window), "visualViewport"), t$36706 == null ? dart.jsInteropNullCheck(dart.global.window) : t$36706);
    this[_domResizeSubscription] = new _engine.DomSubscription.new(resizeEventTarget, "resize", dart.bind(this, _onVisualViewportResize));
  }).prototype = _engine.FullPageDimensionsProvider.prototype;
  dart.addRtiResources(_engine.FullPageDimensionsProvider, ["_engine|FullPageDimensionsProvider"]);
  dart.setMethodSignature(_engine.FullPageDimensionsProvider, () => dart.global.Object.setPrototypeOf({
    [_onVisualViewportResize]: T$10.DomEventTovoid(),
    computePhysicalSize: T$12.VoidToSize(),
    computeKeyboardInsets: T$12.doubleAndboolToViewPadding()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FullPageDimensionsProvider))));
  dart.setGetterSignature(_engine.FullPageDimensionsProvider, () => dart.global.Object.setPrototypeOf({
    [_domResizeSubscription]: T$12.DomSubscription(),
    onResize: T$12.StreamOfSizeN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FullPageDimensionsProvider))));
  dart.setSetterSignature(_engine.FullPageDimensionsProvider, () => dart.global.Object.setPrototypeOf({[_domResizeSubscription]: T$12.DomSubscription()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.FullPageDimensionsProvider))));
  dart.setLibraryUri(_engine.FullPageDimensionsProvider, I[220]);
  dart.setFieldSignature(_engine.FullPageDimensionsProvider, () => dart.global.Object.setPrototypeOf({
    [__FullPageDimensionsProvider__domResizeSubscription]: {type: T$11.DomSubscriptionN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__FullPageDimensionsProvider__domResizeSubscription_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_onResizeStreamController]: {type: T$12.StreamControllerOfSizeN(), isConst: false, isFinal: true, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FullPageDimensionsProvider))));
  var _dprStreamController = dart.privateName(_engine, "_dprStreamController");
  var __DisplayDprStream__dprMediaQuery = dart.privateName(_engine, "_#DisplayDprStream#_dprMediaQuery");
  var __DisplayDprStream__dprMediaQuery_isSet = dart.privateName(_engine, "_#DisplayDprStream#_dprMediaQuery#isSet");
  var _display$ = dart.privateName(_engine, "_display");
  var _currentDpr = dart.privateName(_engine, "_currentDpr");
  var _debugOverrides = dart.privateName(_engine, "_debugOverrides");
  var _subscribeToMediaQuery = dart.privateName(_engine, "_subscribeToMediaQuery");
  var _dprMediaQuery = dart.privateName(_engine, "_dprMediaQuery");
  var _onDprMediaQueryChange = dart.privateName(_engine, "_onDprMediaQueryChange");
  _engine.DisplayDprStream = class DisplayDprStream extends core.Object {
    static ['_#new#tearOff'](_display, opts) {
      if (_display == null) dart.nullFailed(I[385], 18, 10, "_display");
      let overrides = opts && 'overrides' in opts ? opts.overrides : null;
      return new _engine.DisplayDprStream.new(_display, {overrides: overrides});
    }
    get [_dprMediaQuery]() {
      let t$36715;
      return dart.test(this[__DisplayDprStream__dprMediaQuery_isSet]) ? (t$36715 = this[__DisplayDprStream__dprMediaQuery], t$36715) : dart.throw(new _internal.LateError.fieldNI("_dprMediaQuery"));
    }
    set [_dprMediaQuery](_dprMediaQuery$35param) {
      if (_dprMediaQuery$35param == null) dart.nullFailed(I[385], 41, 23, "_dprMediaQuery#param");
      this[__DisplayDprStream__dprMediaQuery_isSet] = true;
      this[__DisplayDprStream__dprMediaQuery] = _dprMediaQuery$35param;
    }
    [_subscribeToMediaQuery]() {
      let t$36715;
      if ((t$36715 = this[_debugOverrides], t$36715 == null ? null : t$36715.getMediaQuery) != null) {
        this[_dprMediaQuery] = dart.nullCheck(dart.nullCheck(this[_debugOverrides]).getMediaQuery)(this[_currentDpr]);
      } else {
        this[_dprMediaQuery] = _engine['DomWindowExtension|matchMedia'](dart.jsInteropNullCheck(dart.global.window), "(resolution: " + dart.str(this[_currentDpr]) + "dppx)");
      }
      _engine['DomEventTargetExtension|addEventListenerWithOptions'](this[_dprMediaQuery], "change", _engine.createDomEventListener(dart.bind(this, _onDprMediaQueryChange)), new (G.IdentityMapOfString$Object()).from(["once", true, "passive", true]));
    }
    [_onDprMediaQueryChange](_) {
      if (_ == null) dart.nullFailed(I[385], 69, 42, "_");
      this[_currentDpr] = this[_display$].devicePixelRatio;
      this[_dprStreamController].add(this[_currentDpr]);
      this[_subscribeToMediaQuery]();
    }
    get dprChanged() {
      return this[_dprStreamController].stream;
    }
  };
  (_engine.DisplayDprStream.new = function(_display, opts) {
    if (_display == null) dart.nullFailed(I[385], 18, 10, "_display");
    let overrides = opts && 'overrides' in opts ? opts.overrides : null;
    this[_dprStreamController] = G$.StreamControllerOfdouble().broadcast();
    this[__DisplayDprStream__dprMediaQuery] = null;
    this[__DisplayDprStream__dprMediaQuery_isSet] = false;
    this[_display$] = _display;
    this[_currentDpr] = _display.devicePixelRatio;
    this[_debugOverrides] = overrides;
    this[_subscribeToMediaQuery]();
  }).prototype = _engine.DisplayDprStream.prototype;
  dart.addRtiResources(_engine.DisplayDprStream, ["_engine|DisplayDprStream"]);
  dart.setMethodSignature(_engine.DisplayDprStream, () => dart.global.Object.setPrototypeOf({
    [_subscribeToMediaQuery]: T$.VoidTovoid(),
    [_onDprMediaQueryChange]: T$10.DomEventTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DisplayDprStream))));
  dart.setGetterSignature(_engine.DisplayDprStream, () => dart.global.Object.setPrototypeOf({
    [_dprMediaQuery]: T$10.DomEventTarget(),
    dprChanged: T$12.StreamOfdouble()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.DisplayDprStream))));
  dart.setSetterSignature(_engine.DisplayDprStream, () => dart.global.Object.setPrototypeOf({[_dprMediaQuery]: T$10.DomEventTarget()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.DisplayDprStream))));
  dart.setLibraryUri(_engine.DisplayDprStream, I[220]);
  dart.setFieldSignature(_engine.DisplayDprStream, () => dart.global.Object.setPrototypeOf({
    [_display$]: {type: T$12.Display(), isConst: false, isFinal: true, libraryUri: I[198]},
    [_currentDpr]: {type: T$.double(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_dprStreamController]: {type: T$12.StreamControllerOfdouble(), isConst: false, isFinal: true, libraryUri: I[39]},
    [__DisplayDprStream__dprMediaQuery]: {type: T$10.DomEventTargetN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__DisplayDprStream__dprMediaQuery_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_debugOverrides]: {type: T$12.DebugDisplayDprStreamOverridesN(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DisplayDprStream))));
  dart.setStaticFieldSignature(_engine.DisplayDprStream, () => ['instance']);
  dart.defineLazy(_engine.DisplayDprStream, {
    /*_engine.DisplayDprStream.instance*/get instance() {
      return new _engine.DisplayDprStream.new(_engine.EngineFlutterDisplay.instance);
    },
    set instance(value) {
      if (value == null) dart.nullFailed(I[385], 27, 27, "instance");
    }
  }, false);
  var getMediaQuery$ = dart.privateName(_engine, "DebugDisplayDprStreamOverrides.getMediaQuery");
  _engine.DebugDisplayDprStreamOverrides = class DebugDisplayDprStreamOverrides extends core.Object {
    get getMediaQuery() {
      return this[getMediaQuery$];
    }
    set getMediaQuery(value) {
      super.getMediaQuery = value;
    }
    static ['_#new#tearOff'](opts) {
      let getMediaQuery = opts && 'getMediaQuery' in opts ? opts.getMediaQuery : null;
      return new _engine.DebugDisplayDprStreamOverrides.new({getMediaQuery: getMediaQuery});
    }
  };
  (_engine.DebugDisplayDprStreamOverrides.new = function(opts) {
    let getMediaQuery = opts && 'getMediaQuery' in opts ? opts.getMediaQuery : null;
    this[getMediaQuery$] = getMediaQuery;
    ;
  }).prototype = _engine.DebugDisplayDprStreamOverrides.prototype;
  dart.addRtiResources(_engine.DebugDisplayDprStreamOverrides, ["_engine|DebugDisplayDprStreamOverrides"]);
  dart.setLibraryUri(_engine.DebugDisplayDprStreamOverrides, I[220]);
  dart.setFieldSignature(_engine.DebugDisplayDprStreamOverrides, () => dart.global.Object.setPrototypeOf({getMediaQuery: {type: T$12.doubleToNDomEventTarget(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DebugDisplayDprStreamOverrides))));
  var rootElement$1 = dart.privateName(_engine, "DomManager.rootElement");
  var platformViewsHost$ = dart.privateName(_engine, "DomManager.platformViewsHost");
  var renderingHost$ = dart.privateName(_engine, "DomManager.renderingHost");
  var sceneHost$0 = dart.privateName(_engine, "DomManager.sceneHost");
  var textEditingHost$ = dart.privateName(_engine, "DomManager.textEditingHost");
  var semanticsHost$0 = dart.privateName(_engine, "DomManager.semanticsHost");
  var _lastSceneElement = dart.privateName(_engine, "_lastSceneElement");
  _engine.DomManager = class DomManager extends core.Object {
    get rootElement() {
      return this[rootElement$1];
    }
    set rootElement(value) {
      super.rootElement = value;
    }
    get platformViewsHost() {
      return this[platformViewsHost$];
    }
    set platformViewsHost(value) {
      super.platformViewsHost = value;
    }
    get renderingHost() {
      return this[renderingHost$];
    }
    set renderingHost(value) {
      super.renderingHost = value;
    }
    get sceneHost() {
      return this[sceneHost$0];
    }
    set sceneHost(value) {
      super.sceneHost = value;
    }
    get textEditingHost() {
      return this[textEditingHost$];
    }
    set textEditingHost(value) {
      super.textEditingHost = value;
    }
    get semanticsHost() {
      return this[semanticsHost$0];
    }
    set semanticsHost(value) {
      super.semanticsHost = value;
    }
    static new(opts) {
      let devicePixelRatio = opts && 'devicePixelRatio' in opts ? opts.devicePixelRatio : null;
      if (devicePixelRatio == null) dart.nullFailed(I[386], 39, 39, "devicePixelRatio");
      let rootElement = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flutter-view");
      let platformViewsHost = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-glass-pane");
      let renderingHost = _engine._attachShadowRoot(platformViewsHost);
      let sceneHost = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-scene-host");
      let textEditingHost = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-text-editing-host");
      let semanticsHost = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-semantics-host");
      T$9.DomNode()[_as](rootElement.appendChild(platformViewsHost));
      T$9.DomNode()[_as](rootElement.appendChild(textEditingHost));
      T$9.DomNode()[_as](rootElement.appendChild(semanticsHost));
      renderingHost.append(sceneHost);
      _engine.StyleManager.attachGlobalStyles({node: rootElement, styleId: "flt-text-editing-stylesheet", styleNonce: _engine.configuration.nonce, cssSelectorPrefix: "flutter-view"});
      _engine.StyleManager.attachGlobalStyles({node: renderingHost, styleId: "flt-internals-stylesheet", styleNonce: _engine.configuration.nonce, cssSelectorPrefix: ""});
      _engine.StyleManager.styleSceneHost(sceneHost, {debugShowSemanticsNodes: _engine.configuration.debugShowSemanticsNodes});
      _engine.StyleManager.styleSemanticsHost(semanticsHost, devicePixelRatio);
      return new _engine.DomManager.__({rootElement: rootElement, platformViewsHost: platformViewsHost, renderingHost: renderingHost, sceneHost: sceneHost, textEditingHost: textEditingHost, semanticsHost: semanticsHost});
    }
    static ['_#new#tearOff'](opts) {
      let devicePixelRatio = opts && 'devicePixelRatio' in opts ? opts.devicePixelRatio : null;
      if (devicePixelRatio == null) dart.nullFailed(I[386], 39, 39, "devicePixelRatio");
      return _engine.DomManager.new({devicePixelRatio: devicePixelRatio});
    }
    static ['_#_#tearOff'](opts) {
      let rootElement = opts && 'rootElement' in opts ? opts.rootElement : null;
      if (rootElement == null) dart.nullFailed(I[386], 104, 19, "rootElement");
      let platformViewsHost = opts && 'platformViewsHost' in opts ? opts.platformViewsHost : null;
      if (platformViewsHost == null) dart.nullFailed(I[386], 105, 19, "platformViewsHost");
      let renderingHost = opts && 'renderingHost' in opts ? opts.renderingHost : null;
      if (renderingHost == null) dart.nullFailed(I[386], 106, 19, "renderingHost");
      let sceneHost = opts && 'sceneHost' in opts ? opts.sceneHost : null;
      if (sceneHost == null) dart.nullFailed(I[386], 107, 19, "sceneHost");
      let textEditingHost = opts && 'textEditingHost' in opts ? opts.textEditingHost : null;
      if (textEditingHost == null) dart.nullFailed(I[386], 108, 19, "textEditingHost");
      let semanticsHost = opts && 'semanticsHost' in opts ? opts.semanticsHost : null;
      if (semanticsHost == null) dart.nullFailed(I[386], 109, 19, "semanticsHost");
      return new _engine.DomManager.__({rootElement: rootElement, platformViewsHost: platformViewsHost, renderingHost: renderingHost, sceneHost: sceneHost, textEditingHost: textEditingHost, semanticsHost: semanticsHost});
    }
    setScene(sceneElement) {
      let t$36715;
      if (sceneElement == null) dart.nullFailed(I[386], 168, 28, "sceneElement");
      if (!dart.equals(sceneElement, this[_lastSceneElement])) {
        t$36715 = this[_lastSceneElement];
        t$36715 == null ? null : t$36715.remove();
        this[_lastSceneElement] = sceneElement;
        this.sceneHost.append(sceneElement);
      }
    }
    injectPlatformView(platformViewId) {
      if (platformViewId == null) dart.nullFailed(I[386], 187, 31, "platformViewId");
      let pv = _engine.PlatformViewManager.instance.getSlottedContent(platformViewId);
      if (pv == null) {
        _engine['DomConsoleExtension|debug'](js_util.getProperty(T$9.DomConsole(), dart.jsInteropNullCheck(dart.global.window), "console"), "Failed to inject Platform View Id: " + dart.str(platformViewId) + ". " + "Render seems to be happening before a `flutter/platform_views:create` platform message!");
        return;
      }
      if (dart.equals(_engine['DomNodeExtension|get#parent'](pv), this.platformViewsHost)) {
        return;
      }
      this.platformViewsHost.append(pv);
    }
  };
  (_engine.DomManager.__ = function(opts) {
    let rootElement = opts && 'rootElement' in opts ? opts.rootElement : null;
    if (rootElement == null) dart.nullFailed(I[386], 104, 19, "rootElement");
    let platformViewsHost = opts && 'platformViewsHost' in opts ? opts.platformViewsHost : null;
    if (platformViewsHost == null) dart.nullFailed(I[386], 105, 19, "platformViewsHost");
    let renderingHost = opts && 'renderingHost' in opts ? opts.renderingHost : null;
    if (renderingHost == null) dart.nullFailed(I[386], 106, 19, "renderingHost");
    let sceneHost = opts && 'sceneHost' in opts ? opts.sceneHost : null;
    if (sceneHost == null) dart.nullFailed(I[386], 107, 19, "sceneHost");
    let textEditingHost = opts && 'textEditingHost' in opts ? opts.textEditingHost : null;
    if (textEditingHost == null) dart.nullFailed(I[386], 108, 19, "textEditingHost");
    let semanticsHost = opts && 'semanticsHost' in opts ? opts.semanticsHost : null;
    if (semanticsHost == null) dart.nullFailed(I[386], 109, 19, "semanticsHost");
    this[_lastSceneElement] = null;
    this[rootElement$1] = rootElement;
    this[platformViewsHost$] = platformViewsHost;
    this[renderingHost$] = renderingHost;
    this[sceneHost$0] = sceneHost;
    this[textEditingHost$] = textEditingHost;
    this[semanticsHost$0] = semanticsHost;
    ;
  }).prototype = _engine.DomManager.prototype;
  dart.addRtiResources(_engine.DomManager, ["_engine|DomManager"]);
  dart.setMethodSignature(_engine.DomManager, () => dart.global.Object.setPrototypeOf({
    setScene: T$9.DomElementTovoid(),
    injectPlatformView: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.DomManager))));
  dart.setStaticMethodSignature(_engine.DomManager, () => ['new']);
  dart.setLibraryUri(_engine.DomManager, I[220]);
  dart.setFieldSignature(_engine.DomManager, () => dart.global.Object.setPrototypeOf({
    rootElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    platformViewsHost: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    renderingHost: {type: T$12.DomShadowRoot(), isConst: false, isFinal: true, libraryUri: I[220]},
    sceneHost: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    textEditingHost: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    semanticsHost: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_lastSceneElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.DomManager))));
  dart.setStaticFieldSignature(_engine.DomManager, () => ['flutterViewTagName', 'glassPaneTagName', 'sceneHostTagName', 'textEditingHostTagName', 'semanticsHostTagName']);
  dart.defineLazy(_engine.DomManager, {
    /*_engine.DomManager.flutterViewTagName*/get flutterViewTagName() {
      return "flutter-view";
    },
    /*_engine.DomManager.glassPaneTagName*/get glassPaneTagName() {
      return "flt-glass-pane";
    },
    /*_engine.DomManager.sceneHostTagName*/get sceneHostTagName() {
      return "flt-scene-host";
    },
    /*_engine.DomManager.textEditingHostTagName*/get textEditingHostTagName() {
      return "flt-text-editing-host";
    },
    /*_engine.DomManager.semanticsHostTagName*/get semanticsHostTagName() {
      return "flt-semantics-host";
    }
  }, false);
  var hostElement$0 = dart.privateName(_engine, "CustomElementEmbeddingStrategy.hostElement");
  var __CustomElementEmbeddingStrategy__rootElement = dart.privateName(_engine, "_#CustomElementEmbeddingStrategy#_rootElement");
  var __CustomElementEmbeddingStrategy__rootElement_isSet = dart.privateName(_engine, "_#CustomElementEmbeddingStrategy#_rootElement#isSet");
  _engine.CustomElementEmbeddingStrategy = class CustomElementEmbeddingStrategy extends core.Object {
    get hostElement() {
      return this[hostElement$0];
    }
    set hostElement(value) {
      super.hostElement = value;
    }
    static ['_#new#tearOff'](hostElement) {
      if (hostElement == null) dart.nullFailed(I[387], 14, 39, "hostElement");
      return new _engine.CustomElementEmbeddingStrategy.new(hostElement);
    }
    get globalEventTarget() {
      return this[_rootElement];
    }
    get [_rootElement]() {
      let t$36715;
      return dart.test(this[__CustomElementEmbeddingStrategy__rootElement_isSet]) ? (t$36715 = this[__CustomElementEmbeddingStrategy__rootElement], t$36715) : dart.throw(new _internal.LateError.fieldNI("_rootElement"));
    }
    set [_rootElement](_rootElement$35param) {
      if (_rootElement$35param == null) dart.nullFailed(I[387], 26, 25, "_rootElement#param");
      if (dart.test(this[__CustomElementEmbeddingStrategy__rootElement_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_rootElement"));
      else {
        this[__CustomElementEmbeddingStrategy__rootElement_isSet] = true;
        this[__CustomElementEmbeddingStrategy__rootElement] = _rootElement$35param;
      }
    }
    attachViewRoot(rootElement) {
      let t$36715;
      if (rootElement == null) dart.nullFailed(I[387], 29, 34, "rootElement");
      t$36715 = rootElement;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#width'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36715, "style"), "100%");
        _engine['DomCSSStyleDeclarationExtension|set#height'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36715, "style"), "100%");
        _engine['DomCSSStyleDeclarationExtension|set#display'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36715, "style"), "block");
        _engine['DomCSSStyleDeclarationExtension|set#overflow'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36715, "style"), "hidden");
        _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36715, "style"), "relative");
        _engine['DomCSSStyleDeclarationExtension|set#touchAction'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$36715, "style"), "none");
        return t$36715;
      })();
      T$9.DomNode()[_as](this.hostElement.appendChild(rootElement));
      _engine.registerElementForCleanup(rootElement);
      this[_rootElement] = rootElement;
    }
  };
  (_engine.CustomElementEmbeddingStrategy.new = function(hostElement) {
    if (hostElement == null) dart.nullFailed(I[387], 14, 39, "hostElement");
    this[__CustomElementEmbeddingStrategy__rootElement] = null;
    this[__CustomElementEmbeddingStrategy__rootElement_isSet] = false;
    this[hostElement$0] = hostElement;
    _engine['DomElementExtension|clearChildren'](this.hostElement);
    _engine['DomElementExtension|setAttribute'](this.hostElement, "flt-embedding", "custom-element");
  }).prototype = _engine.CustomElementEmbeddingStrategy.prototype;
  dart.addRtiResources(_engine.CustomElementEmbeddingStrategy, ["_engine|CustomElementEmbeddingStrategy", "_engine|EmbeddingStrategy"]);
  dart.setMethodSignature(_engine.CustomElementEmbeddingStrategy, () => dart.global.Object.setPrototypeOf({attachViewRoot: T$9.DomElementTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.CustomElementEmbeddingStrategy))));
  dart.setGetterSignature(_engine.CustomElementEmbeddingStrategy, () => dart.global.Object.setPrototypeOf({
    globalEventTarget: T$10.DomEventTarget(),
    [_rootElement]: T$9.DomElement()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.CustomElementEmbeddingStrategy))));
  dart.setSetterSignature(_engine.CustomElementEmbeddingStrategy, () => dart.global.Object.setPrototypeOf({[_rootElement]: T$9.DomElement()}, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.CustomElementEmbeddingStrategy))));
  dart.setLibraryUri(_engine.CustomElementEmbeddingStrategy, I[220]);
  dart.setFieldSignature(_engine.CustomElementEmbeddingStrategy, () => dart.global.Object.setPrototypeOf({
    hostElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__CustomElementEmbeddingStrategy__rootElement]: {type: T$9.DomElementN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__CustomElementEmbeddingStrategy__rootElement_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.CustomElementEmbeddingStrategy))));
  _engine.EmbeddingStrategy = class EmbeddingStrategy extends core.Object {
    static create(opts) {
      let hostElement = opts && 'hostElement' in opts ? opts.hostElement : null;
      if (hostElement != null) {
        return new _engine.CustomElementEmbeddingStrategy.new(hostElement);
      } else {
        return new _engine.FullPageEmbeddingStrategy.new();
      }
    }
    static ['_#create#tearOff'](opts) {
      let hostElement = opts && 'hostElement' in opts ? opts.hostElement : null;
      return _engine.EmbeddingStrategy.create({hostElement: hostElement});
    }
  };
  (_engine.EmbeddingStrategy[dart.mixinNew] = function() {
  }).prototype = _engine.EmbeddingStrategy.prototype;
  dart.addRtiResources(_engine.EmbeddingStrategy, ["_engine|EmbeddingStrategy"]);
  dart.setStaticMethodSignature(_engine.EmbeddingStrategy, () => ['create']);
  dart.setLibraryUri(_engine.EmbeddingStrategy, I[220]);
  var hostElement$1 = dart.privateName(_engine, "FullPageEmbeddingStrategy.hostElement");
  var _applyViewportMeta = dart.privateName(_engine, "_applyViewportMeta");
  var _setHostStyles = dart.privateName(_engine, "_setHostStyles");
  _engine.FullPageEmbeddingStrategy = class FullPageEmbeddingStrategy extends core.Object {
    get hostElement() {
      return this[hostElement$1];
    }
    set hostElement(value) {
      super.hostElement = value;
    }
    static ['_#new#tearOff']() {
      return new _engine.FullPageEmbeddingStrategy.new();
    }
    get globalEventTarget() {
      return dart.jsInteropNullCheck(dart.global.window);
    }
    attachViewRoot(rootElement) {
      let t$36715;
      if (rootElement == null) dart.nullFailed(I[388], 26, 34, "rootElement");
      t$36715 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), rootElement, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36715, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$36715, "0");
        _engine['DomCSSStyleDeclarationExtension|set#right'](t$36715, "0");
        _engine['DomCSSStyleDeclarationExtension|set#bottom'](t$36715, "0");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$36715, "0");
        return t$36715;
      })();
      this.hostElement.append(rootElement);
      _engine.registerElementForCleanup(rootElement);
    }
    [_setHostStyles]() {
      _engine.setElementStyle(this.hostElement, "position", "fixed");
      _engine.setElementStyle(this.hostElement, "top", "0");
      _engine.setElementStyle(this.hostElement, "right", "0");
      _engine.setElementStyle(this.hostElement, "bottom", "0");
      _engine.setElementStyle(this.hostElement, "left", "0");
      _engine.setElementStyle(this.hostElement, "overflow", "hidden");
      _engine.setElementStyle(this.hostElement, "padding", "0");
      _engine.setElementStyle(this.hostElement, "margin", "0");
      _engine.setElementStyle(this.hostElement, "user-select", "none");
      _engine.setElementStyle(this.hostElement, "-webkit-user-select", "none");
      _engine.setElementStyle(this.hostElement, "touch-action", "none");
    }
    [_applyViewportMeta]() {
      let t$36715;
      for (let viewportMeta of _engine['DomElementExtension|querySelectorAll'](dart.nullCheck(js_util.getProperty(T$12.DomHTMLHeadElementN(), dart.jsInteropNullCheck(dart.global.document), "head")), "meta[name=\"viewport\"]")) {
        if (!dart.test(dart.fn(() => {
          if (!dart.test(_engine['DomElementExtension|hasAttribute'](viewportMeta, "flt-viewport"))) {
            core.print("WARNING: found an existing <meta name=\"viewport\"> tag. Flutter Web uses its own viewport configuration for better compatibility with Flutter. This tag will be replaced.");
          }
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[388], 64, 14, "() {\n        // Filter out the meta tag that the engine placed on the page. This is\n        // to avoid UI flicker during hot restart. Hot restart will clean up the\n        // old meta tag synchronously with the first post-restart frame.\n        if (!viewportMeta.hasAttribute('flt-viewport')) {\n          print(\n            'WARNING: found an existing <meta name=\"viewport\"> tag. Flutter '\n            'Web uses its own viewport configuration for better compatibility '\n            'with Flutter. This tag will be replaced.',\n          );\n        }\n        return true;\n      }()");
        viewportMeta.remove();
      }
      let viewportMeta = (t$36715 = _engine.createDomHTMLMetaElement(), (() => {
        _engine['DomElementExtension|setAttribute'](t$36715, "flt-viewport", "");
        _engine['DomHTMLMetaElementExtension|set#name'](t$36715, "viewport");
        _engine['DomHTMLMetaElementExtension|set#content'](t$36715, "width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no");
        return t$36715;
      })());
      dart.nullCheck(js_util.getProperty(T$12.DomHTMLHeadElementN(), dart.jsInteropNullCheck(dart.global.document), "head")).append(viewportMeta);
      _engine.registerElementForCleanup(viewportMeta);
    }
  };
  (_engine.FullPageEmbeddingStrategy.new = function() {
    this[hostElement$1] = dart.nullCheck(js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body"));
    _engine['DomElementExtension|setAttribute'](this.hostElement, "flt-embedding", "full-page");
    this[_applyViewportMeta]();
    this[_setHostStyles]();
  }).prototype = _engine.FullPageEmbeddingStrategy.prototype;
  dart.addRtiResources(_engine.FullPageEmbeddingStrategy, ["_engine|FullPageEmbeddingStrategy", "_engine|EmbeddingStrategy"]);
  dart.setMethodSignature(_engine.FullPageEmbeddingStrategy, () => dart.global.Object.setPrototypeOf({
    attachViewRoot: T$9.DomElementTovoid(),
    [_setHostStyles]: T$.VoidTovoid(),
    [_applyViewportMeta]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FullPageEmbeddingStrategy))));
  dart.setGetterSignature(_engine.FullPageEmbeddingStrategy, () => dart.global.Object.setPrototypeOf({globalEventTarget: T$10.DomEventTarget()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FullPageEmbeddingStrategy))));
  dart.setLibraryUri(_engine.FullPageEmbeddingStrategy, I[220]);
  dart.setFieldSignature(_engine.FullPageEmbeddingStrategy, () => dart.global.Object.setPrototypeOf({hostElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]}}, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FullPageEmbeddingStrategy))));
  var _viewData = dart.privateName(_engine, "_viewData");
  var _jsViewOptions = dart.privateName(_engine, "_jsViewOptions");
  var _onViewCreatedController = dart.privateName(_engine, "_onViewCreatedController");
  var _onViewDisposedController = dart.privateName(_engine, "_onViewDisposedController");
  var _dispatcher$ = dart.privateName(_engine, "_dispatcher");
  _engine.FlutterViewManager = class FlutterViewManager extends core.Object {
    static ['_#new#tearOff'](_dispatcher) {
      if (_dispatcher == null) dart.nullFailed(I[389], 8, 27, "_dispatcher");
      return new _engine.FlutterViewManager.new(_dispatcher);
    }
    get onViewCreated() {
      return this[_onViewCreatedController].stream;
    }
    get onViewDisposed() {
      return this[_onViewDisposedController].stream;
    }
    get views() {
      return this[_viewData][$values];
    }
    _get(viewId) {
      if (viewId == null) dart.nullFailed(I[389], 37, 38, "viewId");
      return this[_viewData][$_get](viewId);
    }
    createAndRegisterView(jsViewOptions) {
      if (jsViewOptions == null) dart.nullFailed(I[389], 42, 26, "jsViewOptions");
      let view = new _engine._EngineFlutterViewImpl.new(this[_dispatcher$], _engine['JsFlutterViewOptionsExtension|get#hostElement'](jsViewOptions), {viewConstraints: _engine['JsFlutterViewOptionsExtension|get#viewConstraints'](jsViewOptions)});
      this.registerView(view, {jsViewOptions: jsViewOptions});
      return view;
    }
    registerView(view, opts) {
      if (view == null) dart.nullFailed(I[389], 57, 23, "view");
      let jsViewOptions = opts && 'jsViewOptions' in opts ? opts.jsViewOptions : null;
      let viewId = view.viewId;
      if (!!dart.test(this[_viewData][$containsKey](viewId))) dart.assertFailed(null, I[389], 61, 12, "!_viewData.containsKey(viewId)");
      this[_viewData][$_set](viewId, view);
      if (jsViewOptions != null) {
        this[_jsViewOptions][$_set](viewId, jsViewOptions);
      }
      this[_onViewCreatedController].add(viewId);
      return view;
    }
    disposeAndUnregisterView(viewId) {
      if (viewId == null) dart.nullFailed(I[389], 73, 54, "viewId");
      let view = this[_viewData][$_get](viewId);
      if (view == null) {
        return null;
      }
      let options = this.unregisterView(viewId);
      view.dispose();
      return options;
    }
    unregisterView(viewId) {
      if (viewId == null) dart.nullFailed(I[389], 86, 44, "viewId");
      this[_viewData][$remove](viewId);
      let jsViewOptions = this[_jsViewOptions][$remove](viewId);
      this[_onViewDisposedController].add(viewId);
      return jsViewOptions;
    }
    getOptions(viewId) {
      if (viewId == null) dart.nullFailed(I[389], 97, 40, "viewId");
      return this[_jsViewOptions][$_get](viewId);
    }
    findViewForElement(element) {
      let t$36715, t$36715$;
      let viewRoot = (t$36715 = element, t$36715 == null ? null : _engine['DomElementExtension|closest'](t$36715, "flutter-view[flt-view-id]"));
      let viewIdAttribute = (t$36715$ = viewRoot, t$36715$ == null ? null : _engine['DomElementExtension|getAttribute'](t$36715$, "flt-view-id"));
      let viewId = viewIdAttribute == null ? null : core.int.parse(viewIdAttribute);
      return viewId == null ? null : this[_viewData][$_get](viewId);
    }
    dispose() {
      this[_viewData][$keys][$toList]()[$forEach](dart.bind(this, 'disposeAndUnregisterView'));
      this[_onViewCreatedController].close();
      this[_onViewDisposedController].close();
    }
  };
  (_engine.FlutterViewManager.new = function(_dispatcher) {
    if (_dispatcher == null) dart.nullFailed(I[389], 8, 27, "_dispatcher");
    this[_viewData] = new (G$.IdentityMapOfint$EngineFlutterView()).new();
    this[_jsViewOptions] = new (G$.IdentityMapOfint$JsFlutterViewOptions()).new();
    this[_onViewCreatedController] = G$.StreamControllerOfint().broadcast({sync: true});
    this[_onViewDisposedController] = G$.StreamControllerOfint().broadcast({sync: true});
    this[_dispatcher$] = _dispatcher;
    ;
  }).prototype = _engine.FlutterViewManager.prototype;
  dart.addRtiResources(_engine.FlutterViewManager, ["_engine|FlutterViewManager"]);
  dart.setMethodSignature(_engine.FlutterViewManager, () => dart.global.Object.setPrototypeOf({
    _get: T$12.intToEngineFlutterViewN(),
    createAndRegisterView: T$12.JsFlutterViewOptionsToEngineFlutterView(),
    registerView: T$12.EngineFlutterView__ToEngineFlutterView(),
    disposeAndUnregisterView: T$9.intToJsFlutterViewOptionsN(),
    unregisterView: T$9.intToJsFlutterViewOptionsN(),
    getOptions: T$9.intToJsFlutterViewOptionsN(),
    findViewForElement: T$12.DomElementNToEngineFlutterViewN(),
    dispose: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.FlutterViewManager))));
  dart.setGetterSignature(_engine.FlutterViewManager, () => dart.global.Object.setPrototypeOf({
    onViewCreated: T$12.StreamOfint(),
    onViewDisposed: T$12.StreamOfint(),
    views: T$11.IterableOfEngineFlutterView()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.FlutterViewManager))));
  dart.setLibraryUri(_engine.FlutterViewManager, I[220]);
  dart.setFieldSignature(_engine.FlutterViewManager, () => dart.global.Object.setPrototypeOf({
    [_dispatcher$]: {type: T$11.EnginePlatformDispatcher(), isConst: false, isFinal: true, libraryUri: I[220]},
    [_viewData]: {type: T$12.MapOfint$EngineFlutterView(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_jsViewOptions]: {type: T$12.MapOfint$JsFlutterViewOptions(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_onViewCreatedController]: {type: T$12.StreamControllerOfint(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_onViewDisposedController]: {type: T$12.StreamControllerOfint(), isConst: false, isFinal: true, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.FlutterViewManager))));
  var rootElement$2 = dart.privateName(_engine, "GlobalHtmlAttributes.rootElement");
  var hostElement$2 = dart.privateName(_engine, "GlobalHtmlAttributes.hostElement");
  _engine.GlobalHtmlAttributes = class GlobalHtmlAttributes extends core.Object {
    get rootElement() {
      return this[rootElement$2];
    }
    set rootElement(value) {
      super.rootElement = value;
    }
    get hostElement() {
      return this[hostElement$2];
    }
    set hostElement(value) {
      super.hostElement = value;
    }
    static ['_#new#tearOff'](opts) {
      let rootElement = opts && 'rootElement' in opts ? opts.rootElement : null;
      if (rootElement == null) dart.nullFailed(I[390], 18, 39, "rootElement");
      let hostElement = opts && 'hostElement' in opts ? opts.hostElement : null;
      if (hostElement == null) dart.nullFailed(I[390], 18, 66, "hostElement");
      return new _engine.GlobalHtmlAttributes.new({rootElement: rootElement, hostElement: hostElement});
    }
    applyAttributes(opts) {
      let viewId = opts && 'viewId' in opts ? opts.viewId : null;
      if (viewId == null) dart.nullFailed(I[390], 27, 18, "viewId");
      let autoDetectRenderer = opts && 'autoDetectRenderer' in opts ? opts.autoDetectRenderer : null;
      if (autoDetectRenderer == null) dart.nullFailed(I[390], 28, 19, "autoDetectRenderer");
      let rendererTag = opts && 'rendererTag' in opts ? opts.rendererTag : null;
      if (rendererTag == null) dart.nullFailed(I[390], 29, 21, "rendererTag");
      let buildMode = opts && 'buildMode' in opts ? opts.buildMode : null;
      if (buildMode == null) dart.nullFailed(I[390], 30, 21, "buildMode");
      _engine['DomElementExtension|setAttribute'](this.rootElement, "flt-view-id", viewId);
      let rendererSelection = dart.test(autoDetectRenderer) ? "auto-selected" : "requested explicitly";
      _engine['DomElementExtension|setAttribute'](this.hostElement, "flt-renderer", dart.str(rendererTag) + " (" + rendererSelection + ")");
      _engine['DomElementExtension|setAttribute'](this.hostElement, "flt-build-mode", buildMode);
      _engine['DomElementExtension|setAttribute'](this.hostElement, "spellcheck", "false");
    }
  };
  (_engine.GlobalHtmlAttributes.new = function(opts) {
    let rootElement = opts && 'rootElement' in opts ? opts.rootElement : null;
    if (rootElement == null) dart.nullFailed(I[390], 18, 39, "rootElement");
    let hostElement = opts && 'hostElement' in opts ? opts.hostElement : null;
    if (hostElement == null) dart.nullFailed(I[390], 18, 66, "hostElement");
    this[rootElement$2] = rootElement;
    this[hostElement$2] = hostElement;
    ;
  }).prototype = _engine.GlobalHtmlAttributes.prototype;
  dart.addRtiResources(_engine.GlobalHtmlAttributes, ["_engine|GlobalHtmlAttributes"]);
  dart.setMethodSignature(_engine.GlobalHtmlAttributes, () => dart.global.Object.setPrototypeOf({applyAttributes: T$12.__Tovoid$25()}, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.GlobalHtmlAttributes))));
  dart.setLibraryUri(_engine.GlobalHtmlAttributes, I[220]);
  dart.setFieldSignature(_engine.GlobalHtmlAttributes, () => dart.global.Object.setPrototypeOf({
    rootElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]},
    hostElement: {type: T$9.DomElement(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.GlobalHtmlAttributes))));
  dart.setStaticFieldSignature(_engine.GlobalHtmlAttributes, () => ['flutterViewIdAttributeName']);
  dart.defineLazy(_engine.GlobalHtmlAttributes, {
    /*_engine.GlobalHtmlAttributes.flutterViewIdAttributeName*/get flutterViewIdAttributeName() {
      return "flt-view-id";
    }
  }, false);
  var _resetHotRestartStore = dart.privateName(_engine, "_resetHotRestartStore");
  _engine.HotRestartCacheHandler = class HotRestartCacheHandler extends core.Object {
    static ['_#new#tearOff']() {
      return new _engine.HotRestartCacheHandler.new();
    }
    [_resetHotRestartStore]() {
      let jsStore = dart.global.window.__flutterState;
      if (jsStore != null) {
        let store = T$.ListOfObjectN()[_as](_engine['JSAnyToObjectExtension|get#toObjectShallow'](jsStore));
        for (let element of store) {
          if (element != null) {
            T$9.DomElement()[_as](element).remove();
          }
        }
      }
      dart.global.window.__flutterState = T$3.JSArrayOfObjectN()[_as](new dart.global.Array());
    }
    registerElement(element) {
      if (element == null) dart.nullFailed(I[391], 53, 35, "element");
      dart.nullCheck(dart.global.window.__flutterState).push(T$3.JSObject()[_as](element));
    }
  };
  (_engine.HotRestartCacheHandler.new = function() {
    this[_resetHotRestartStore]();
  }).prototype = _engine.HotRestartCacheHandler.prototype;
  dart.addRtiResources(_engine.HotRestartCacheHandler, ["_engine|HotRestartCacheHandler"]);
  dart.setMethodSignature(_engine.HotRestartCacheHandler, () => dart.global.Object.setPrototypeOf({
    [_resetHotRestartStore]: T$.VoidTovoid(),
    registerElement: T$9.DomElementTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.HotRestartCacheHandler))));
  dart.setLibraryUri(_engine.HotRestartCacheHandler, I[220]);
  _engine.StyleManager = class StyleManager extends core.Object {
    static attachGlobalStyles(opts) {
      let node = opts && 'node' in opts ? opts.node : null;
      if (node == null) dart.nullFailed(I[392], 18, 22, "node");
      let styleId = opts && 'styleId' in opts ? opts.styleId : null;
      if (styleId == null) dart.nullFailed(I[392], 19, 21, "styleId");
      let styleNonce = opts && 'styleNonce' in opts ? opts.styleNonce : null;
      let cssSelectorPrefix = opts && 'cssSelectorPrefix' in opts ? opts.cssSelectorPrefix : null;
      if (cssSelectorPrefix == null) dart.nullFailed(I[392], 21, 21, "cssSelectorPrefix");
      let styleElement = _engine.createDomHTMLStyleElement(styleNonce);
      _engine['DomElementExtension|set#id'](styleElement, styleId);
      T$9.DomNode()[_as](node.appendChild(styleElement));
      _engine.applyGlobalCssRulesToSheet(styleElement, {defaultCssFont: "normal normal 14px sans-serif", cssSelectorPrefix: cssSelectorPrefix});
    }
    static styleSceneHost(sceneHost, opts) {
      if (sceneHost == null) dart.nullFailed(I[392], 35, 16, "sceneHost");
      let debugShowSemanticsNodes = opts && 'debugShowSemanticsNodes' in opts ? opts.debugShowSemanticsNodes : false;
      if (debugShowSemanticsNodes == null) dart.nullFailed(I[392], 36, 10, "debugShowSemanticsNodes");
      if (!(_engine['DomElementExtension|get#tagName'](sceneHost)[$toLowerCase]() === "flt-scene-host"[$toLowerCase]())) dart.assertFailed(null, I[392], 38, 12, "sceneHost.tagName.toLowerCase() == DomManager.sceneHostTagName.toLowerCase()");
      _engine['DomCSSStyleDeclarationExtension|set#pointerEvents'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), sceneHost, "style"), "none");
      if (dart.test(debugShowSemanticsNodes)) {
        _engine['DomCSSStyleDeclarationExtension|set#opacity'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), sceneHost, "style"), "0.3");
      }
    }
    static styleSemanticsHost(semanticsHost, devicePixelRatio) {
      let t$36715;
      if (semanticsHost == null) dart.nullFailed(I[392], 49, 16, "semanticsHost");
      if (devicePixelRatio == null) dart.nullFailed(I[392], 50, 12, "devicePixelRatio");
      if (!(_engine['DomElementExtension|get#tagName'](semanticsHost)[$toLowerCase]() === "flt-semantics-host"[$toLowerCase]())) dart.assertFailed(null, I[392], 52, 12, "semanticsHost.tagName.toLowerCase() == DomManager.semanticsHostTagName.toLowerCase()");
      t$36715 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), semanticsHost, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$36715, "absolute");
        _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$36715, "0 0 0");
        return t$36715;
      })();
      _engine.StyleManager.scaleSemanticsHost(semanticsHost, devicePixelRatio);
    }
    static scaleSemanticsHost(semanticsHost, devicePixelRatio) {
      if (semanticsHost == null) dart.nullFailed(I[392], 63, 16, "semanticsHost");
      if (devicePixelRatio == null) dart.nullFailed(I[392], 64, 12, "devicePixelRatio");
      if (!(_engine['DomElementExtension|get#tagName'](semanticsHost)[$toLowerCase]() === "flt-semantics-host"[$toLowerCase]())) dart.assertFailed(null, I[392], 66, 12, "semanticsHost.tagName.toLowerCase() == DomManager.semanticsHostTagName.toLowerCase()");
      _engine['DomCSSStyleDeclarationExtension|set#transform'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), semanticsHost, "style"), "scale(" + dart.strSafe(1 / dart.notNull(devicePixelRatio)) + ")");
    }
    static ['_#new#tearOff']() {
      return new _engine.StyleManager.new();
    }
  };
  (_engine.StyleManager.new = function() {
    ;
  }).prototype = _engine.StyleManager.prototype;
  dart.addRtiResources(_engine.StyleManager, ["_engine|StyleManager"]);
  dart.setStaticMethodSignature(_engine.StyleManager, () => ['attachGlobalStyles', 'styleSceneHost', 'styleSemanticsHost', 'scaleSemanticsHost']);
  dart.setLibraryUri(_engine.StyleManager, I[220]);
  dart.setStaticFieldSignature(_engine.StyleManager, () => ['defaultFontStyle', 'defaultFontWeight', 'defaultFontSize', 'defaultFontFamily', 'defaultCssFont']);
  dart.defineLazy(_engine.StyleManager, {
    /*_engine.StyleManager.defaultFontStyle*/get defaultFontStyle() {
      return "normal";
    },
    /*_engine.StyleManager.defaultFontWeight*/get defaultFontWeight() {
      return "normal";
    },
    /*_engine.StyleManager.defaultFontSize*/get defaultFontSize() {
      return 14;
    },
    /*_engine.StyleManager.defaultFontFamily*/get defaultFontFamily() {
      return "sans-serif";
    },
    /*_engine.StyleManager.defaultCssFont*/get defaultCssFont() {
      return "normal normal 14px sans-serif";
    }
  }, false);
  var viewId$8 = dart.privateName(_engine, "EngineFlutterView.viewId");
  var platformDispatcher$ = dart.privateName(_engine, "EngineFlutterView.platformDispatcher");
  var embeddingStrategy = dart.privateName(_engine, "EngineFlutterView.embeddingStrategy");
  var isDisposed = dart.privateName(_engine, "EngineFlutterView.isDisposed");
  var debugPhysicalSizeOverride = dart.privateName(_engine, "EngineFlutterView.debugPhysicalSizeOverride");
  var dimensionsProvider = dart.privateName(_engine, "EngineFlutterView.dimensionsProvider");
  var __EngineFlutterView__resizeSubscription = dart.privateName(_engine, "_#EngineFlutterView#_resizeSubscription");
  var __EngineFlutterView__resizeSubscription_isSet = dart.privateName(_engine, "_#EngineFlutterView#_resizeSubscription#isSet");
  var _viewConfiguration = dart.privateName(_engine, "_viewConfiguration");
  var __EngineFlutterView__globalHtmlAttributes = dart.privateName(_engine, "_#EngineFlutterView#_globalHtmlAttributes");
  var __EngineFlutterView__globalHtmlAttributes_isSet = dart.privateName(_engine, "_#EngineFlutterView#_globalHtmlAttributes#isSet");
  var __EngineFlutterView_mouseCursor = dart.privateName(_engine, "_#EngineFlutterView#mouseCursor");
  var __EngineFlutterView_mouseCursor_isSet = dart.privateName(_engine, "_#EngineFlutterView#mouseCursor#isSet");
  var __EngineFlutterView_contextMenu = dart.privateName(_engine, "_#EngineFlutterView#contextMenu");
  var __EngineFlutterView_contextMenu_isSet = dart.privateName(_engine, "_#EngineFlutterView#contextMenu#isSet");
  var __EngineFlutterView_dom = dart.privateName(_engine, "_#EngineFlutterView#dom");
  var __EngineFlutterView_dom_isSet = dart.privateName(_engine, "_#EngineFlutterView#dom#isSet");
  var __EngineFlutterView_pointerBinding = dart.privateName(_engine, "_#EngineFlutterView#pointerBinding");
  var __EngineFlutterView_pointerBinding_isSet = dart.privateName(_engine, "_#EngineFlutterView#pointerBinding#isSet");
  var __EngineFlutterView_semantics = dart.privateName(_engine, "_#EngineFlutterView#semantics");
  var __EngineFlutterView_semantics_isSet = dart.privateName(_engine, "_#EngineFlutterView#semantics#isSet");
  var _physicalSize = dart.privateName(_engine, "_physicalSize");
  var _viewInsets = dart.privateName(_engine, "_viewInsets");
  var _jsViewConstraints = dart.privateName(_engine, "_jsViewConstraints");
  var _resizeSubscription = dart.privateName(_engine, "_resizeSubscription");
  var _didResize = dart.privateName(_engine, "_didResize");
  var _globalHtmlAttributes = dart.privateName(_engine, "_globalHtmlAttributes");
  var _computePhysicalSize = dart.privateName(_engine, "_computePhysicalSize");
  var _isRotation = dart.privateName(_engine, "_isRotation");
  var _computeOnScreenKeyboardInsets = dart.privateName(_engine, "_computeOnScreenKeyboardInsets");
  _engine.EngineFlutterView = class EngineFlutterView extends core.Object {
    get viewId() {
      return this[viewId$8];
    }
    set viewId(value) {
      super.viewId = value;
    }
    get platformDispatcher() {
      return this[platformDispatcher$];
    }
    set platformDispatcher(value) {
      super.platformDispatcher = value;
    }
    get embeddingStrategy() {
      return this[embeddingStrategy];
    }
    set embeddingStrategy(value) {
      super.embeddingStrategy = value;
    }
    get isDisposed() {
      return this[isDisposed];
    }
    set isDisposed(value) {
      if (value == null) dart.nullFailed(I[393], 81, 8, "isDisposed");
      this[isDisposed] = value;
    }
    get debugPhysicalSizeOverride() {
      return this[debugPhysicalSizeOverride];
    }
    set debugPhysicalSizeOverride(value) {
      this[debugPhysicalSizeOverride] = value;
    }
    get dimensionsProvider() {
      return this[dimensionsProvider];
    }
    set dimensionsProvider(value) {
      super.dimensionsProvider = value;
    }
    static ['_#new#tearOff'](platformDispatcher, hostElement, opts) {
      if (platformDispatcher == null) dart.nullFailed(I[393], 30, 30, "platformDispatcher");
      if (hostElement == null) dart.nullFailed(I[393], 31, 16, "hostElement");
      let viewConstraints = opts && 'viewConstraints' in opts ? opts.viewConstraints : null;
      return new _engine._EngineFlutterViewImpl.new(platformDispatcher, hostElement, {viewConstraints: viewConstraints});
    }
    static ['_#_#tearOff'](viewId, platformDispatcher, hostElement, opts) {
      if (viewId == null) dart.nullFailed(I[393], 37, 10, "viewId");
      if (platformDispatcher == null) dart.nullFailed(I[393], 38, 10, "platformDispatcher");
      let viewConstraints = opts && 'viewConstraints' in opts ? opts.viewConstraints : null;
      return new _engine.EngineFlutterView.__(viewId, platformDispatcher, hostElement, {viewConstraints: viewConstraints});
    }
    static implicit(platformDispatcher, hostElement) {
      if (platformDispatcher == null) dart.nullFailed(I[393], 63, 30, "platformDispatcher");
      return new _engine.EngineFlutterWindow.__(platformDispatcher, hostElement);
    }
    get [_resizeSubscription]() {
      let t$36715;
      return dart.test(this[__EngineFlutterView__resizeSubscription_isSet]) ? (t$36715 = this[__EngineFlutterView__resizeSubscription], t$36715) : dart.throw(new _internal.LateError.fieldNI("_resizeSubscription"));
    }
    set [_resizeSubscription](_resizeSubscription$35param) {
      if (_resizeSubscription$35param == null) dart.nullFailed(I[393], 76, 43, "_resizeSubscription#param");
      if (dart.test(this[__EngineFlutterView__resizeSubscription_isSet]))
        dart.throw(new _internal.LateError.fieldAI("_resizeSubscription"));
      else {
        this[__EngineFlutterView__resizeSubscription_isSet] = true;
        this[__EngineFlutterView__resizeSubscription] = _resizeSubscription$35param;
      }
    }
    dispose() {
      if (dart.test(this.isDisposed)) {
        return;
      }
      this.isDisposed = true;
      this[_resizeSubscription].cancel();
      this.dimensionsProvider.close();
      this.pointerBinding.dispose();
      this.dom.rootElement.remove();
      _engine.renderer.clearFragmentProgramCache();
      this.semantics.reset();
    }
    render(scene, opts) {
      if (scene == null) dart.nullFailed(I[393], 101, 24, "scene");
      let size = opts && 'size' in opts ? opts.size : null;
      if (!!dart.test(this.isDisposed)) dart.assertFailed("Trying to render a disposed EngineFlutterView.", I[393], 102, 12, "!isDisposed");
      if (size != null) {
        this.resize(size);
      }
      this.platformDispatcher.render(scene, this);
    }
    updateSemantics(update) {
      if (update == null) dart.nullFailed(I[393], 110, 43, "update");
      if (!!dart.test(this.isDisposed)) dart.assertFailed("Trying to update semantics on a disposed EngineFlutterView.", I[393], 111, 12, "!isDisposed");
      this.semantics.updateSemantics(update);
    }
    get [_globalHtmlAttributes]() {
      let t$36716;
      if (!dart.test(this[__EngineFlutterView__globalHtmlAttributes_isSet])) {
        let t$36715 = new _engine.GlobalHtmlAttributes.new({rootElement: this.dom.rootElement, hostElement: this.embeddingStrategy.hostElement});
        if (dart.test(this[__EngineFlutterView__globalHtmlAttributes_isSet])) dart.throw(new _internal.LateError.fieldADI("_globalHtmlAttributes"));
        this[__EngineFlutterView__globalHtmlAttributes] = t$36715;
        this[__EngineFlutterView__globalHtmlAttributes_isSet] = true;
      }
      t$36716 = this[__EngineFlutterView__globalHtmlAttributes];
      return t$36716;
    }
    get mouseCursor() {
      let t$36717;
      if (!dart.test(this[__EngineFlutterView_mouseCursor_isSet])) {
        let t$36716 = new _engine.MouseCursor.new(this.dom.rootElement);
        if (dart.test(this[__EngineFlutterView_mouseCursor_isSet])) dart.throw(new _internal.LateError.fieldADI("mouseCursor"));
        this[__EngineFlutterView_mouseCursor] = t$36716;
        this[__EngineFlutterView_mouseCursor_isSet] = true;
      }
      t$36717 = this[__EngineFlutterView_mouseCursor];
      return t$36717;
    }
    get contextMenu() {
      let t$36718;
      if (!dart.test(this[__EngineFlutterView_contextMenu_isSet])) {
        let t$36717 = new _engine.ContextMenu.new(this.dom.rootElement);
        if (dart.test(this[__EngineFlutterView_contextMenu_isSet])) dart.throw(new _internal.LateError.fieldADI("contextMenu"));
        this[__EngineFlutterView_contextMenu] = t$36717;
        this[__EngineFlutterView_contextMenu_isSet] = true;
      }
      t$36718 = this[__EngineFlutterView_contextMenu];
      return t$36718;
    }
    get dom() {
      let t$36719;
      if (!dart.test(this[__EngineFlutterView_dom_isSet])) {
        let t$36718 = _engine.DomManager.new({devicePixelRatio: this.devicePixelRatio});
        if (dart.test(this[__EngineFlutterView_dom_isSet])) dart.throw(new _internal.LateError.fieldADI("dom"));
        this[__EngineFlutterView_dom] = t$36718;
        this[__EngineFlutterView_dom_isSet] = true;
      }
      t$36719 = this[__EngineFlutterView_dom];
      return t$36719;
    }
    get pointerBinding() {
      let t$36719;
      return dart.test(this[__EngineFlutterView_pointerBinding_isSet]) ? (t$36719 = this[__EngineFlutterView_pointerBinding], t$36719) : dart.throw(new _internal.LateError.fieldNI("pointerBinding"));
    }
    set pointerBinding(pointerBinding$35param) {
      if (pointerBinding$35param == null) dart.nullFailed(I[393], 126, 29, "pointerBinding#param");
      if (dart.test(this[__EngineFlutterView_pointerBinding_isSet]))
        dart.throw(new _internal.LateError.fieldAI("pointerBinding"));
      else {
        this[__EngineFlutterView_pointerBinding_isSet] = true;
        this[__EngineFlutterView_pointerBinding] = pointerBinding$35param;
      }
    }
    get physicalConstraints() {
      let dpr = this.devicePixelRatio;
      let currentLogicalSize = this.physicalSize['/'](dpr);
      return _engine.ViewConstraints.fromJs(this[_jsViewConstraints], currentLogicalSize)['*'](dpr);
    }
    get semantics() {
      let t$36720;
      if (!dart.test(this[__EngineFlutterView_semantics_isSet])) {
        let t$36719 = new _engine.EngineSemanticsOwner.new(this.dom.semanticsHost);
        if (dart.test(this[__EngineFlutterView_semantics_isSet])) dart.throw(new _internal.LateError.fieldADI("semantics"));
        this[__EngineFlutterView_semantics] = t$36719;
        this[__EngineFlutterView_semantics_isSet] = true;
      }
      t$36720 = this[__EngineFlutterView_semantics];
      return t$36720;
    }
    get physicalSize() {
      let t$36720;
      t$36720 = this[_physicalSize];
      return t$36720 == null ? this[_physicalSize] = this[_computePhysicalSize]() : t$36720;
    }
    resize(newPhysicalSize) {
      let t$36720;
      if (newPhysicalSize == null) dart.nullFailed(I[393], 181, 23, "newPhysicalSize");
      let logicalSize = newPhysicalSize['/'](this.devicePixelRatio);
      t$36720 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), this.dom.rootElement, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$36720, dart.str(logicalSize.width) + "px");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$36720, dart.str(logicalSize.height) + "px");
        return t$36720;
      })();
      this[_computePhysicalSize]();
    }
    [_computePhysicalSize]() {
      let t$36720;
      let physicalSizeOverride = null;
      if (!dart.test(dart.fn(() => {
        physicalSizeOverride = this.debugPhysicalSizeOverride;
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[393], 204, 12, "() {\n      physicalSizeOverride = debugPhysicalSizeOverride;\n      return true;\n    }()");
      t$36720 = physicalSizeOverride;
      return t$36720 == null ? this.dimensionsProvider.computePhysicalSize() : t$36720;
    }
    debugForceResize() {
      this[_physicalSize] = this[_computePhysicalSize]();
    }
    get viewInsets() {
      return this[_viewInsets];
    }
    get viewPadding() {
      return this[_viewConfiguration].viewPadding;
    }
    get systemGestureInsets() {
      return this[_viewConfiguration].systemGestureInsets;
    }
    get padding() {
      return this[_viewConfiguration].padding;
    }
    get gestureSettings() {
      return this[_viewConfiguration].gestureSettings;
    }
    get displayFeatures() {
      return this[_viewConfiguration].displayFeatures;
    }
    get display() {
      return _engine.EngineFlutterDisplay.instance;
    }
    get devicePixelRatio() {
      return this.display.devicePixelRatio;
    }
    get onResize() {
      return this.dimensionsProvider.onResize;
    }
    [_didResize](newSize) {
      _engine.StyleManager.scaleSemanticsHost(this.dom.semanticsHost, this.devicePixelRatio);
      let newPhysicalSize = this[_computePhysicalSize]();
      let isEditingOnMobile = dart.test(_engine.isMobile) && !dart.test(this[_isRotation](newPhysicalSize)) && dart.test(_engine.textEditing.isEditing);
      if (isEditingOnMobile) {
        this[_computeOnScreenKeyboardInsets](true);
      } else {
        this[_physicalSize] = newPhysicalSize;
        this[_computeOnScreenKeyboardInsets](false);
      }
      this.platformDispatcher.invokeOnMetricsChanged();
    }
    [_isRotation](newPhysicalSize) {
      if (newPhysicalSize == null) dart.nullFailed(I[393], 285, 28, "newPhysicalSize");
      if (this[_physicalSize] != null) {
        if (dart.nullCheck(this[_physicalSize]).height != newPhysicalSize.height && dart.nullCheck(this[_physicalSize]).width != newPhysicalSize.width) {
          if (dart.notNull(dart.nullCheck(this[_physicalSize]).height) > dart.notNull(dart.nullCheck(this[_physicalSize]).width) && dart.notNull(newPhysicalSize.height) < dart.notNull(newPhysicalSize.width) || dart.notNull(dart.nullCheck(this[_physicalSize]).width) > dart.notNull(dart.nullCheck(this[_physicalSize]).height) && dart.notNull(newPhysicalSize.width) < dart.notNull(newPhysicalSize.height)) {
            return true;
          }
        }
      }
      return false;
    }
    [_computeOnScreenKeyboardInsets](isEditingOnMobile) {
      if (isEditingOnMobile == null) dart.nullFailed(I[393], 303, 44, "isEditingOnMobile");
      this[_viewInsets] = this.dimensionsProvider.computeKeyboardInsets(dart.nullCheck(this[_physicalSize]).height, isEditingOnMobile);
    }
  };
  (_engine.EngineFlutterView.__ = function(viewId, platformDispatcher, hostElement, opts) {
    if (viewId == null) dart.nullFailed(I[393], 37, 10, "viewId");
    if (platformDispatcher == null) dart.nullFailed(I[393], 38, 10, "platformDispatcher");
    let viewConstraints = opts && 'viewConstraints' in opts ? opts.viewConstraints : null;
    this[__EngineFlutterView__resizeSubscription] = null;
    this[__EngineFlutterView__resizeSubscription_isSet] = false;
    this[_viewConfiguration] = C[1050] || CT.C1050;
    this[isDisposed] = false;
    this[__EngineFlutterView__globalHtmlAttributes] = null;
    this[__EngineFlutterView__globalHtmlAttributes_isSet] = false;
    this[__EngineFlutterView_mouseCursor] = null;
    this[__EngineFlutterView_mouseCursor_isSet] = false;
    this[__EngineFlutterView_contextMenu] = null;
    this[__EngineFlutterView_contextMenu_isSet] = false;
    this[__EngineFlutterView_dom] = null;
    this[__EngineFlutterView_dom_isSet] = false;
    this[__EngineFlutterView_pointerBinding] = null;
    this[__EngineFlutterView_pointerBinding_isSet] = false;
    this[__EngineFlutterView_semantics] = null;
    this[__EngineFlutterView_semantics_isSet] = false;
    this[_physicalSize] = null;
    this[debugPhysicalSizeOverride] = null;
    this[_viewInsets] = T$11.ViewPadding$1()[_as](ui.ViewPadding.zero);
    this[viewId$8] = viewId;
    this[platformDispatcher$] = platformDispatcher;
    this[_jsViewConstraints] = viewConstraints;
    this[embeddingStrategy] = _engine.EmbeddingStrategy.create({hostElement: hostElement});
    this[dimensionsProvider] = _engine.DimensionsProvider.create({hostElement: hostElement});
    this.embeddingStrategy.attachViewRoot(this.dom.rootElement);
    this.pointerBinding = new _engine.PointerBinding.new(this);
    this[_resizeSubscription] = this.onResize.listen(dart.bind(this, _didResize));
    this[_globalHtmlAttributes].applyAttributes({viewId: this.viewId, autoDetectRenderer: false, rendererTag: _engine.renderer.rendererTag, buildMode: _engine.buildMode});
    _engine.registerHotRestartListener(dart.bind(this, 'dispose'));
  }).prototype = _engine.EngineFlutterView.prototype;
  dart.addRtiResources(_engine.EngineFlutterView, ["_engine|EngineFlutterView", "ui|FlutterView"]);
  dart.setMethodSignature(_engine.EngineFlutterView, () => dart.global.Object.setPrototypeOf({
    dispose: T$.VoidTovoid(),
    render: T$12.Scene__Tovoid(),
    updateSemantics: T$9.SemanticsUpdateTovoid(),
    resize: T$12.SizeTovoid(),
    [_computePhysicalSize]: T$12.VoidToSize(),
    debugForceResize: T$.VoidTovoid(),
    [_didResize]: T$12.SizeNTovoid(),
    [_isRotation]: T$12.SizeTobool(),
    [_computeOnScreenKeyboardInsets]: T$1.boolTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineFlutterView))));
  dart.setStaticMethodSignature(_engine.EngineFlutterView, () => ['new', 'implicit']);
  dart.setGetterSignature(_engine.EngineFlutterView, () => dart.global.Object.setPrototypeOf({
    [_resizeSubscription]: T$12.StreamSubscriptionOfSizeN(),
    [_globalHtmlAttributes]: T$12.GlobalHtmlAttributes(),
    mouseCursor: T$12.MouseCursor(),
    contextMenu: T$12.ContextMenu(),
    dom: T$11.DomManager(),
    pointerBinding: T$11.PointerBinding(),
    physicalConstraints: T$12.ViewConstraints(),
    semantics: T$12.EngineSemanticsOwner(),
    physicalSize: T$8.Size(),
    viewInsets: T$11.ViewPadding$1(),
    viewPadding: T$11.ViewPadding$1(),
    systemGestureInsets: T$11.ViewPadding$1(),
    padding: T$11.ViewPadding$1(),
    gestureSettings: T$9.GestureSettings(),
    displayFeatures: T$11.ListOfDisplayFeature(),
    display: T$10.EngineFlutterDisplay(),
    devicePixelRatio: T$.double(),
    onResize: T$12.StreamOfSizeN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineFlutterView))));
  dart.setSetterSignature(_engine.EngineFlutterView, () => dart.global.Object.setPrototypeOf({
    [_resizeSubscription]: T$12.StreamSubscriptionOfSizeN(),
    pointerBinding: T$11.PointerBinding()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.EngineFlutterView))));
  dart.setLibraryUri(_engine.EngineFlutterView, I[220]);
  dart.setFieldSignature(_engine.EngineFlutterView, () => dart.global.Object.setPrototypeOf({
    viewId: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    platformDispatcher: {type: T$11.EnginePlatformDispatcher(), isConst: false, isFinal: true, libraryUri: I[220]},
    embeddingStrategy: {type: T$12.EmbeddingStrategy(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__EngineFlutterView__resizeSubscription]: {type: T$12.StreamSubscriptionNOfSizeN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [__EngineFlutterView__resizeSubscription_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_viewConfiguration]: {type: T$12.ViewConfiguration(), isConst: false, isFinal: true, libraryUri: I[220]},
    isDisposed: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__EngineFlutterView__globalHtmlAttributes]: {type: T$12.GlobalHtmlAttributesN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EngineFlutterView__globalHtmlAttributes_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__EngineFlutterView_mouseCursor]: {type: T$12.MouseCursorN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EngineFlutterView_mouseCursor_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__EngineFlutterView_contextMenu]: {type: T$12.ContextMenuN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EngineFlutterView_contextMenu_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__EngineFlutterView_dom]: {type: T$12.DomManagerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EngineFlutterView_dom_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__EngineFlutterView_pointerBinding]: {type: T$12.PointerBindingN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EngineFlutterView_pointerBinding_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_jsViewConstraints]: {type: T$12.JsViewConstraintsN(), isConst: false, isFinal: true, libraryUri: I[220]},
    [__EngineFlutterView_semantics]: {type: T$12.EngineSemanticsOwnerN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [__EngineFlutterView_semantics_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_physicalSize]: {type: T$12.SizeN(), isConst: false, isFinal: false, libraryUri: I[198]},
    debugPhysicalSizeOverride: {type: T$12.SizeN(), isConst: false, isFinal: false, libraryUri: I[198]},
    [_viewInsets]: {type: T$11.ViewPadding$1(), isConst: false, isFinal: false, libraryUri: I[220]},
    dimensionsProvider: {type: T$12.DimensionsProvider(), isConst: false, isFinal: true, libraryUri: I[220]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineFlutterView))));
  _engine._EngineFlutterViewImpl = class _EngineFlutterViewImpl extends _engine.EngineFlutterView {
    static ['_#new#tearOff'](platformDispatcher, hostElement, opts) {
      if (platformDispatcher == null) dart.nullFailed(I[393], 313, 30, "platformDispatcher");
      if (hostElement == null) dart.nullFailed(I[393], 314, 16, "hostElement");
      let viewConstraints = opts && 'viewConstraints' in opts ? opts.viewConstraints : null;
      return new _engine._EngineFlutterViewImpl.new(platformDispatcher, hostElement, {viewConstraints: viewConstraints});
    }
  };
  (_engine._EngineFlutterViewImpl.new = function(platformDispatcher, hostElement, opts) {
    let t$36720;
    if (platformDispatcher == null) dart.nullFailed(I[393], 313, 30, "platformDispatcher");
    if (hostElement == null) dart.nullFailed(I[393], 314, 16, "hostElement");
    let viewConstraints = opts && 'viewConstraints' in opts ? opts.viewConstraints : null;
    dart.global.Object.getPrototypeOf(_engine._EngineFlutterViewImpl).__.call(this, (t$36720 = _engine._nextViewId, _engine._nextViewId = dart.notNull(t$36720) + 1, t$36720), platformDispatcher, hostElement, {viewConstraints: viewConstraints});
    ;
  }).prototype = _engine._EngineFlutterViewImpl.prototype;
  dart.addRtiResources(_engine._EngineFlutterViewImpl, ["_engine|_EngineFlutterViewImpl"]);
  dart.setLibraryUri(_engine._EngineFlutterViewImpl, I[220]);
  var _browserHistory = dart.privateName(_engine, "_browserHistory");
  var _endOfTheLine = dart.privateName(_engine, "_endOfTheLine");
  var _urlStrategyForInitialization = dart.privateName(_engine, "_urlStrategyForInitialization");
  var _useSingleEntryBrowserHistory = dart.privateName(_engine, "_useSingleEntryBrowserHistory");
  var _useMultiEntryBrowserHistory = dart.privateName(_engine, "_useMultiEntryBrowserHistory");
  var _waitInTheLine = dart.privateName(_engine, "_waitInTheLine");
  _engine.EngineFlutterWindow = class EngineFlutterWindow extends _engine.EngineFlutterView {
    static ['_#_#tearOff'](platformDispatcher, hostElement) {
      if (platformDispatcher == null) dart.nullFailed(I[393], 323, 30, "platformDispatcher");
      return new _engine.EngineFlutterWindow.__(platformDispatcher, hostElement);
    }
    dispose() {
      let t$36720;
      super.dispose();
      t$36720 = this[_browserHistory];
      t$36720 == null ? null : t$36720.dispose();
    }
    get onMetricsChanged() {
      return this.platformDispatcher.onMetricsChanged;
    }
    set onMetricsChanged(callback) {
      this.platformDispatcher.onMetricsChanged = callback;
    }
    get locale() {
      return this.platformDispatcher.locale;
    }
    get locales() {
      return this.platformDispatcher.locales;
    }
    computePlatformResolvedLocale(supportedLocales) {
      if (supportedLocales == null) dart.nullFailed(I[393], 350, 60, "supportedLocales");
      return this.platformDispatcher.computePlatformResolvedLocale(supportedLocales);
    }
    get onLocaleChanged() {
      return this.platformDispatcher.onLocaleChanged;
    }
    set onLocaleChanged(callback) {
      this.platformDispatcher.onLocaleChanged = callback;
    }
    get initialLifecycleState() {
      return this.platformDispatcher.initialLifecycleState;
    }
    get textScaleFactor() {
      return this.platformDispatcher.textScaleFactor;
    }
    get nativeSpellCheckServiceDefined() {
      return this.platformDispatcher.nativeSpellCheckServiceDefined;
    }
    get supportsShowingSystemContextMenu() {
      return this.platformDispatcher.supportsShowingSystemContextMenu;
    }
    get brieflyShowPassword() {
      return this.platformDispatcher.brieflyShowPassword;
    }
    get alwaysUse24HourFormat() {
      return this.platformDispatcher.alwaysUse24HourFormat;
    }
    get onTextScaleFactorChanged() {
      return this.platformDispatcher.onTextScaleFactorChanged;
    }
    set onTextScaleFactorChanged(callback) {
      this.platformDispatcher.onTextScaleFactorChanged = callback;
    }
    get platformBrightness() {
      return this.platformDispatcher.platformBrightness;
    }
    get onPlatformBrightnessChanged() {
      return this.platformDispatcher.onPlatformBrightnessChanged;
    }
    set onPlatformBrightnessChanged(callback) {
      this.platformDispatcher.onPlatformBrightnessChanged = callback;
    }
    get systemFontFamily() {
      return this.platformDispatcher.systemFontFamily;
    }
    get onSystemFontFamilyChanged() {
      return this.platformDispatcher.onSystemFontFamilyChanged;
    }
    set onSystemFontFamilyChanged(callback) {
      this.platformDispatcher.onSystemFontFamilyChanged = callback;
    }
    get onBeginFrame() {
      return this.platformDispatcher.onBeginFrame;
    }
    set onBeginFrame(callback) {
      this.platformDispatcher.onBeginFrame = callback;
    }
    get onDrawFrame() {
      return this.platformDispatcher.onDrawFrame;
    }
    set onDrawFrame(callback) {
      this.platformDispatcher.onDrawFrame = callback;
    }
    get onReportTimings() {
      return this.platformDispatcher.onReportTimings;
    }
    set onReportTimings(callback) {
      this.platformDispatcher.onReportTimings = callback;
    }
    get onPointerDataPacket() {
      return this.platformDispatcher.onPointerDataPacket;
    }
    set onPointerDataPacket(callback) {
      this.platformDispatcher.onPointerDataPacket = callback;
    }
    get onKeyData() {
      return this.platformDispatcher.onKeyData;
    }
    set onKeyData(callback) {
      this.platformDispatcher.onKeyData = callback;
    }
    get defaultRouteName() {
      return this.platformDispatcher.defaultRouteName;
    }
    scheduleFrame() {
      return this.platformDispatcher.scheduleFrame();
    }
    get semanticsEnabled() {
      return this.platformDispatcher.semanticsEnabled;
    }
    get onSemanticsEnabledChanged() {
      return this.platformDispatcher.onSemanticsEnabledChanged;
    }
    set onSemanticsEnabledChanged(callback) {
      this.platformDispatcher.onSemanticsEnabledChanged = callback;
    }
    get frameData() {
      return C[913] || CT.C913;
    }
    get onFrameDataChanged() {
      return null;
    }
    set onFrameDataChanged(callback) {
    }
    get accessibilityFeatures() {
      return this.platformDispatcher.accessibilityFeatures;
    }
    get onAccessibilityFeaturesChanged() {
      return this.platformDispatcher.onAccessibilityFeaturesChanged;
    }
    set onAccessibilityFeaturesChanged(callback) {
      this.platformDispatcher.onAccessibilityFeaturesChanged = callback;
    }
    sendPlatformMessage(name, data, callback) {
      if (name == null) dart.nullFailed(I[393], 478, 12, "name");
      this.platformDispatcher.sendPlatformMessage(name, data, callback);
    }
    get onPlatformMessage() {
      return this.platformDispatcher.onPlatformMessage;
    }
    set onPlatformMessage(callback) {
      this.platformDispatcher.onPlatformMessage = callback;
    }
    setIsolateDebugName(name) {
      if (name == null) dart.nullFailed(I[393], 493, 35, "name");
      return ui.PlatformDispatcher.instance.setIsolateDebugName(name);
    }
    get browserHistory() {
      let t$36720;
      t$36720 = this[_browserHistory];
      return t$36720 == null ? this[_browserHistory] = _engine.createHistoryForExistingState(this[_urlStrategyForInitialization]) : t$36720;
    }
    get [_urlStrategyForInitialization]() {
      ui_web.preventCustomUrlStrategy();
      return ui_web.urlStrategy;
    }
    [_useSingleEntryBrowserHistory]() {
      return async.async(T$.void(), (function* _useSingleEntryBrowserHistory() {
        let t$36720, t$36720$;
        this[_browserHistory] == null ? this[_browserHistory] = _engine.createHistoryForExistingState(this[_urlStrategyForInitialization]) : null;
        if (T$12.SingleEntryBrowserHistory()[_is](this[_browserHistory])) {
          return;
        }
        let strategy = (t$36720 = this[_browserHistory], t$36720 == null ? null : t$36720.urlStrategy);
        yield async.awaitWithTypeCheck(T$1.FutureOfvoid(), (t$36720$ = this[_browserHistory], t$36720$ == null ? null : t$36720$.tearDown()));
        this[_browserHistory] = new _engine.SingleEntryBrowserHistory.new({urlStrategy: strategy});
      }).bind(this));
    }
    [_useMultiEntryBrowserHistory]() {
      return async.async(T$.void(), (function* _useMultiEntryBrowserHistory() {
        let t$36720, t$36720$;
        this[_browserHistory] == null ? this[_browserHistory] = _engine.createHistoryForExistingState(this[_urlStrategyForInitialization]) : null;
        if (T$12.MultiEntriesBrowserHistory()[_is](this[_browserHistory])) {
          return;
        }
        let strategy = (t$36720 = this[_browserHistory], t$36720 == null ? null : t$36720.urlStrategy);
        yield async.awaitWithTypeCheck(T$1.FutureOfvoid(), (t$36720$ = this[_browserHistory], t$36720$ == null ? null : t$36720$.tearDown()));
        this[_browserHistory] = new _engine.MultiEntriesBrowserHistory.new({urlStrategy: strategy});
      }).bind(this));
    }
    debugInitializeHistory(strategy, opts) {
      let useSingle = opts && 'useSingle' in opts ? opts.useSingle : null;
      if (useSingle == null) dart.nullFailed(I[393], 562, 19, "useSingle");
      return async.async(T$.void(), (function* debugInitializeHistory() {
        let t$36720;
        yield async.awaitWithTypeCheck(T$1.FutureOfvoid(), (t$36720 = this[_browserHistory], t$36720 == null ? null : t$36720.tearDown()));
        ui_web.urlStrategy = strategy;
        if (dart.test(useSingle)) {
          this[_browserHistory] = new _engine.SingleEntryBrowserHistory.new({urlStrategy: strategy});
        } else {
          this[_browserHistory] = new _engine.MultiEntriesBrowserHistory.new({urlStrategy: strategy});
        }
      }).bind(this));
    }
    resetHistory() {
      return async.async(T$.void(), (function* resetHistory() {
        let t$36720;
        yield async.awaitWithTypeCheck(T$1.FutureOfvoid(), (t$36720 = this[_browserHistory], t$36720 == null ? null : t$36720.tearDown()));
        this[_browserHistory] = null;
        ui_web.debugResetCustomUrlStrategy();
      }).bind(this));
    }
    [_waitInTheLine](callback) {
      if (callback == null) dart.nullFailed(I[393], 582, 54, "callback");
      return async.async(T$.bool(), (function* _waitInTheLine() {
        let currentPosition = this[_endOfTheLine];
        let completer = G$.CompleterOfvoid().new();
        this[_endOfTheLine] = completer.future;
        yield currentPosition;
        let result = false;
        try {
          result = (yield callback());
        } finally {
          completer.complete();
        }
        return result;
      }).bind(this));
    }
    handleNavigationMessage(data) {
      return async.async(T$.bool(), (function* handleNavigationMessage() {
        return this[_waitInTheLine](dart.fn(() => async.async(T$.bool(), (function*() {
          let t$36720;
          let decoded = (C[847] || CT.C847).decodeMethodCall(data);
          let $arguments = T$7.MapNOfString$dynamic()[_as](decoded.arguments);
          switch (decoded.method) {
            case "selectMultiEntryHistory":
              {
                yield this[_useMultiEntryBrowserHistory]();
                return true;
              }
            case "selectSingleEntryHistory":
              {
                yield this[_useSingleEntryBrowserHistory]();
                return true;
              }
            case "routeUpdated":
              {
                if (!($arguments != null)) dart.assertFailed(null, I[393], 609, 18, "arguments != null");
                yield this[_useSingleEntryBrowserHistory]();
                this.browserHistory.setRouteName(_engine['JsonExtensions|tryString'](dart.nullCheck($arguments), "routeName"));
                return true;
              }
            case "routeInformationUpdated":
              {
                if (!($arguments != null)) dart.assertFailed(null, I[393], 614, 18, "arguments != null");
                let uriString = _engine['JsonExtensions|tryString'](dart.nullCheck($arguments), "uri");
                let path = null;
                if (uriString != null) {
                  let uri = core.Uri.parse(uriString);
                  path = core.Uri.decodeComponent(dart.toString(core._Uri.new({path: uri.path[$isEmpty] ? "/" : uri.path, queryParameters: dart.test(uri.queryParametersAll[$isEmpty]) ? null : uri.queryParametersAll, fragment: uri.fragment[$isEmpty] ? null : uri.fragment})));
                } else {
                  path = dart.nullCheck(_engine['JsonExtensions|tryString']($arguments, "location"));
                }
                this.browserHistory.setRouteName(path, {state: $arguments[$_get]("state"), replace: (t$36720 = _engine['JsonExtensions|tryBool']($arguments, "replace"), t$36720 == null ? false : t$36720)});
                return true;
              }
          }
          return false;
        }).bind(this)), T$1.VoidToFutureOfbool()));
      }).bind(this));
    }
    debugOverrideDevicePixelRatio(value) {
      if (!dart.test(dart.fn(() => {
        _engine.printWarning("The window.debugOverrideDevicePixelRatio API is deprecated and will be removed in a future release. Please use `debugOverrideDevicePixelRatio` from `dart:ui_web` instead.");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[393], 644, 12, "() {\n      printWarning(\n        'The window.debugOverrideDevicePixelRatio API is deprecated and will '\n        'be removed in a future release. Please use '\n        '`debugOverrideDevicePixelRatio` from `dart:ui_web` instead.',\n      );\n      return true;\n    }()");
      this.display.debugOverrideDevicePixelRatio(value);
    }
    get webOnlyDebugPhysicalSizeOverride() {
      if (!dart.test(dart.fn(() => {
        _engine.printWarning("The webOnlyDebugPhysicalSizeOverride API is deprecated and will be removed in a future release. Please use `SingletonFlutterWindow.debugPhysicalSizeOverride` from `dart:ui_web` instead.");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[393], 658, 12, "() {\n      printWarning(\n        'The webOnlyDebugPhysicalSizeOverride API is deprecated and will be '\n        'removed in a future release. Please use '\n        '`SingletonFlutterWindow.debugPhysicalSizeOverride` from `dart:ui_web` '\n        'instead.',\n      );\n      return true;\n    }()");
      return this.debugPhysicalSizeOverride;
    }
    set webOnlyDebugPhysicalSizeOverride(value) {
      if (!dart.test(dart.fn(() => {
        _engine.printWarning("The webOnlyDebugPhysicalSizeOverride API is deprecated and will be removed in a future release. Please use `SingletonFlutterWindow.debugPhysicalSizeOverride` from `dart:ui_web` instead.");
        return true;
      }, T$.VoidTobool())())) dart.assertFailed(null, I[393], 673, 12, "() {\n      printWarning(\n        'The webOnlyDebugPhysicalSizeOverride API is deprecated and will be '\n        'removed in a future release. Please use '\n        '`SingletonFlutterWindow.debugPhysicalSizeOverride` from `dart:ui_web` '\n        'instead.',\n      );\n      return true;\n    }()");
      this.debugPhysicalSizeOverride = value;
    }
  };
  (_engine.EngineFlutterWindow.__ = function(platformDispatcher, hostElement) {
    if (platformDispatcher == null) dart.nullFailed(I[393], 323, 30, "platformDispatcher");
    this[_browserHistory] = null;
    this[_endOfTheLine] = G.FutureOfvoid().value();
    dart.global.Object.getPrototypeOf(_engine.EngineFlutterWindow).__.call(this, 0, platformDispatcher, hostElement);
    if (dart.test(ui_web.isCustomUrlStrategySet)) {
      this[_browserHistory] = _engine.createHistoryForExistingState(ui_web.urlStrategy);
    }
  }).prototype = _engine.EngineFlutterWindow.prototype;
  dart.addRtiResources(_engine.EngineFlutterWindow, ["_engine|EngineFlutterWindow", "ui|SingletonFlutterWindow", "ui|FlutterView"]);
  dart.setMethodSignature(_engine.EngineFlutterWindow, () => dart.global.Object.setPrototypeOf({
    computePlatformResolvedLocale: T$11.ListOfLocaleToLocaleN(),
    scheduleFrame: T$.VoidTovoid(),
    sendPlatformMessage: T$11.StringAndByteDataNAndFnTovoid$1(),
    setIsolateDebugName: T$.StringTovoid(),
    [_useSingleEntryBrowserHistory]: T$.VoidToFutureOfvoid(),
    [_useMultiEntryBrowserHistory]: T$.VoidToFutureOfvoid(),
    debugInitializeHistory: T$12.UrlStrategyN__ToFutureOfvoid(),
    resetHistory: T$.VoidToFutureOfvoid(),
    [_waitInTheLine]: T$12.FnToFutureOfbool$1(),
    handleNavigationMessage: T$12.ByteDataNToFutureOfbool(),
    debugOverrideDevicePixelRatio: T$10.doubleNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.EngineFlutterWindow))));
  dart.setGetterSignature(_engine.EngineFlutterWindow, () => dart.global.Object.setPrototypeOf({
    onMetricsChanged: T$1.VoidToNvoid(),
    locale: T$9.Locale(),
    locales: T$11.ListOfLocale(),
    onLocaleChanged: T$1.VoidToNvoid(),
    initialLifecycleState: T$.String(),
    textScaleFactor: T$.double(),
    nativeSpellCheckServiceDefined: T$.bool(),
    supportsShowingSystemContextMenu: T$.bool(),
    brieflyShowPassword: T$.bool(),
    alwaysUse24HourFormat: T$.bool(),
    onTextScaleFactorChanged: T$1.VoidToNvoid(),
    platformBrightness: T$9.Brightness(),
    onPlatformBrightnessChanged: T$1.VoidToNvoid(),
    systemFontFamily: T$.StringN(),
    onSystemFontFamilyChanged: T$1.VoidToNvoid(),
    onBeginFrame: T$11.DurationToNvoid(),
    onDrawFrame: T$1.VoidToNvoid(),
    onReportTimings: T$11.ListOfFrameTimingToNvoid(),
    onPointerDataPacket: T$11.PointerDataPacketToNvoid(),
    onKeyData: T$11.KeyDataToNbool(),
    defaultRouteName: T$.String(),
    semanticsEnabled: T$.bool(),
    onSemanticsEnabledChanged: T$1.VoidToNvoid(),
    frameData: T$11.FrameData(),
    onFrameDataChanged: T$1.VoidToNvoid(),
    accessibilityFeatures: T$11.AccessibilityFeatures(),
    onAccessibilityFeaturesChanged: T$1.VoidToNvoid(),
    onPlatformMessage: T$11.StringAndByteDataNAndFnToNvoid(),
    browserHistory: T$12.BrowserHistory(),
    [_urlStrategyForInitialization]: T$11.UrlStrategyN(),
    webOnlyDebugPhysicalSizeOverride: T$12.SizeN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.EngineFlutterWindow))));
  dart.setSetterSignature(_engine.EngineFlutterWindow, () => dart.global.Object.setPrototypeOf({
    onMetricsChanged: T$1.VoidToNvoid(),
    onLocaleChanged: T$1.VoidToNvoid(),
    onTextScaleFactorChanged: T$1.VoidToNvoid(),
    onPlatformBrightnessChanged: T$1.VoidToNvoid(),
    onSystemFontFamilyChanged: T$1.VoidToNvoid(),
    onBeginFrame: T$11.DurationToNvoid(),
    onDrawFrame: T$1.VoidToNvoid(),
    onReportTimings: T$11.ListOfFrameTimingToNvoid(),
    onPointerDataPacket: T$11.PointerDataPacketToNvoid(),
    onKeyData: T$11.KeyDataToNbool(),
    onSemanticsEnabledChanged: T$1.VoidToNvoid(),
    onFrameDataChanged: T$1.VoidToNvoid(),
    onAccessibilityFeaturesChanged: T$1.VoidToNvoid(),
    onPlatformMessage: T$11.StringAndByteDataNAndFnToNvoid(),
    webOnlyDebugPhysicalSizeOverride: T$12.SizeN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_engine.EngineFlutterWindow))));
  dart.setLibraryUri(_engine.EngineFlutterWindow, I[220]);
  dart.setFieldSignature(_engine.EngineFlutterWindow, () => dart.global.Object.setPrototypeOf({
    [_browserHistory]: {type: T$12.BrowserHistoryN(), isConst: false, isFinal: false, libraryUri: I[220]},
    [_endOfTheLine]: {type: T$1.FutureOfvoid(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.EngineFlutterWindow))));
  const left$5 = ViewPadding_left;
  const top$4 = ViewPadding_top;
  const right$2 = ViewPadding_right;
  const bottom$2 = ViewPadding_bottom;
  _engine.ViewPadding = class ViewPadding extends core.Object {
    get left() {
      return this[left$5];
    }
    set left(value) {
      super.left = value;
    }
    get top() {
      return this[top$4];
    }
    set top(value) {
      super.top = value;
    }
    get right() {
      return this[right$2];
    }
    set right(value) {
      super.right = value;
    }
    get bottom() {
      return this[bottom$2];
    }
    set bottom(value) {
      super.bottom = value;
    }
    static ['_#new#tearOff'](opts) {
      let left = opts && 'left' in opts ? opts.left : null;
      if (left == null) dart.nullFailed(I[393], 719, 19, "left");
      let top = opts && 'top' in opts ? opts.top : null;
      if (top == null) dart.nullFailed(I[393], 720, 19, "top");
      let right = opts && 'right' in opts ? opts.right : null;
      if (right == null) dart.nullFailed(I[393], 721, 19, "right");
      let bottom = opts && 'bottom' in opts ? opts.bottom : null;
      if (bottom == null) dart.nullFailed(I[393], 722, 19, "bottom");
      return new _engine.ViewPadding.new({left: left, top: top, right: right, bottom: bottom});
    }
  };
  (_engine.ViewPadding.new = function(opts) {
    let left = opts && 'left' in opts ? opts.left : null;
    if (left == null) dart.nullFailed(I[393], 719, 19, "left");
    let top = opts && 'top' in opts ? opts.top : null;
    if (top == null) dart.nullFailed(I[393], 720, 19, "top");
    let right = opts && 'right' in opts ? opts.right : null;
    if (right == null) dart.nullFailed(I[393], 721, 19, "right");
    let bottom = opts && 'bottom' in opts ? opts.bottom : null;
    if (bottom == null) dart.nullFailed(I[393], 722, 19, "bottom");
    this[left$5] = left;
    this[top$4] = top;
    this[right$2] = right;
    this[bottom$2] = bottom;
    ;
  }).prototype = _engine.ViewPadding.prototype;
  dart.addRtiResources(_engine.ViewPadding, ["_engine|ViewPadding", "ui|ViewPadding"]);
  dart.setLibraryUri(_engine.ViewPadding, I[220]);
  dart.setFieldSignature(_engine.ViewPadding, () => dart.global.Object.setPrototypeOf({
    left: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    top: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    right: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    bottom: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ViewPadding))));
  var minWidth$ = dart.privateName(_engine, "ViewConstraints.minWidth");
  var maxWidth$0 = dart.privateName(_engine, "ViewConstraints.maxWidth");
  var minHeight$ = dart.privateName(_engine, "ViewConstraints.minHeight");
  var maxHeight$ = dart.privateName(_engine, "ViewConstraints.maxHeight");
  _engine.ViewConstraints = class ViewConstraints extends core.Object {
    get minWidth() {
      return this[minWidth$];
    }
    set minWidth(value) {
      super.minWidth = value;
    }
    get maxWidth() {
      return this[maxWidth$0];
    }
    set maxWidth(value) {
      super.maxWidth = value;
    }
    get minHeight() {
      return this[minHeight$];
    }
    set minHeight(value) {
      super.minHeight = value;
    }
    get maxHeight() {
      return this[maxHeight$];
    }
    set maxHeight(value) {
      super.maxHeight = value;
    }
    static ['_#new#tearOff'](opts) {
      let minWidth = opts && 'minWidth' in opts ? opts.minWidth : 0;
      if (minWidth == null) dart.nullFailed(I[393], 737, 10, "minWidth");
      let maxWidth = opts && 'maxWidth' in opts ? opts.maxWidth : 1 / 0;
      if (maxWidth == null) dart.nullFailed(I[393], 738, 10, "maxWidth");
      let minHeight = opts && 'minHeight' in opts ? opts.minHeight : 0;
      if (minHeight == null) dart.nullFailed(I[393], 739, 10, "minHeight");
      let maxHeight = opts && 'maxHeight' in opts ? opts.maxHeight : 1 / 0;
      if (maxHeight == null) dart.nullFailed(I[393], 740, 10, "maxHeight");
      return new _engine.ViewConstraints.new({minWidth: minWidth, maxWidth: maxWidth, minHeight: minHeight, maxHeight: maxHeight});
    }
    static ['_#tight#tearOff'](size) {
      if (size == null) dart.nullFailed(I[393], 743, 33, "size");
      return new _engine.ViewConstraints.tight(size);
    }
    static fromJs(constraints, currentLogicalSize) {
      if (currentLogicalSize == null) dart.nullFailed(I[393], 758, 45, "currentLogicalSize");
      if (constraints == null) {
        return new _engine.ViewConstraints.tight(currentLogicalSize);
      }
      return new _engine.ViewConstraints.new({minWidth: _engine._computeMinConstraintValue(js_util.getProperty(T$9.doubleN(), constraints, "minWidth"), currentLogicalSize.width), minHeight: _engine._computeMinConstraintValue(js_util.getProperty(T$9.doubleN(), constraints, "minHeight"), currentLogicalSize.height), maxWidth: _engine._computeMaxConstraintValue(js_util.getProperty(T$9.doubleN(), constraints, "maxWidth"), currentLogicalSize.width), maxHeight: _engine._computeMaxConstraintValue(js_util.getProperty(T$9.doubleN(), constraints, "maxHeight"), currentLogicalSize.height)});
    }
    static ['_#fromJs#tearOff'](constraints, currentLogicalSize) {
      if (currentLogicalSize == null) dart.nullFailed(I[393], 758, 45, "currentLogicalSize");
      return _engine.ViewConstraints.fromJs(constraints, currentLogicalSize);
    }
    isSatisfiedBy(size) {
      if (size == null) dart.nullFailed(I[393], 780, 30, "size");
      return dart.notNull(this.minWidth) <= dart.notNull(size.width) && dart.notNull(size.width) <= dart.notNull(this.maxWidth) && dart.notNull(this.minHeight) <= dart.notNull(size.height) && dart.notNull(size.height) <= dart.notNull(this.maxHeight);
    }
    get isTight() {
      return dart.notNull(this.minWidth) >= dart.notNull(this.maxWidth) && dart.notNull(this.minHeight) >= dart.notNull(this.maxHeight);
    }
    ['*'](factor) {
      if (factor == null) dart.nullFailed(I[393], 788, 36, "factor");
      return new _engine.ViewConstraints.new({minWidth: dart.notNull(this.minWidth) * dart.notNull(factor), maxWidth: dart.notNull(this.maxWidth) * dart.notNull(factor), minHeight: dart.notNull(this.minHeight) * dart.notNull(factor), maxHeight: dart.notNull(this.maxHeight) * dart.notNull(factor)});
    }
    ['/'](factor) {
      if (factor == null) dart.nullFailed(I[393], 798, 36, "factor");
      return new _engine.ViewConstraints.new({minWidth: dart.notNull(this.minWidth) / dart.notNull(factor), maxWidth: dart.notNull(this.maxWidth) / dart.notNull(factor), minHeight: dart.notNull(this.minHeight) / dart.notNull(factor), maxHeight: dart.notNull(this.maxHeight) / dart.notNull(factor)});
    }
    _equals(other) {
      if (other == null) return false;
      if (this === other) {
        return true;
      }
      if (!dart.equals(dart.runtimeType(other), dart.runtimeType(this))) {
        return false;
      }
      return T$12.ViewConstraints()[_is](other) && other.minWidth == this.minWidth && other.maxWidth == this.maxWidth && other.minHeight == this.minHeight && other.maxHeight == this.maxHeight;
    }
    get hashCode() {
      return core.Object.hash(this.minWidth, this.maxWidth, this.minHeight, this.maxHeight);
    }
    toString() {
      if (this.minWidth === 1 / 0 && this.minHeight === 1 / 0) {
        return "ViewConstraints(biggest)";
      }
      if (this.minWidth === 0 && this.maxWidth === 1 / 0 && this.minHeight === 0 && this.maxHeight === 1 / 0) {
        return "ViewConstraints(unconstrained)";
      }
      function describe(min, max, dim) {
        if (min == null) dart.nullFailed(I[393], 834, 28, "min");
        if (max == null) dart.nullFailed(I[393], 834, 40, "max");
        if (dim == null) dart.nullFailed(I[393], 834, 52, "dim");
        if (min == max) {
          return dart.str(dim) + "=" + min[$toStringAsFixed](1);
        }
        return min[$toStringAsFixed](1) + "<=" + dart.str(dim) + "<=" + max[$toStringAsFixed](1);
      }
      dart.fn(describe, T$12.doubleAnddoubleAndStringToString());
      let width = describe(this.minWidth, this.maxWidth, "w");
      let height = describe(this.minHeight, this.maxHeight, "h");
      return "ViewConstraints(" + dart.str(width) + ", " + dart.str(height) + ")";
    }
  };
  (_engine.ViewConstraints.new = function(opts) {
    let minWidth = opts && 'minWidth' in opts ? opts.minWidth : 0;
    if (minWidth == null) dart.nullFailed(I[393], 737, 10, "minWidth");
    let maxWidth = opts && 'maxWidth' in opts ? opts.maxWidth : 1 / 0;
    if (maxWidth == null) dart.nullFailed(I[393], 738, 10, "maxWidth");
    let minHeight = opts && 'minHeight' in opts ? opts.minHeight : 0;
    if (minHeight == null) dart.nullFailed(I[393], 739, 10, "minHeight");
    let maxHeight = opts && 'maxHeight' in opts ? opts.maxHeight : 1 / 0;
    if (maxHeight == null) dart.nullFailed(I[393], 740, 10, "maxHeight");
    this[minWidth$] = minWidth;
    this[maxWidth$0] = maxWidth;
    this[minHeight$] = minHeight;
    this[maxHeight$] = maxHeight;
    ;
  }).prototype = _engine.ViewConstraints.prototype;
  (_engine.ViewConstraints.tight = function(size) {
    if (size == null) dart.nullFailed(I[393], 743, 33, "size");
    this[minWidth$] = size.width;
    this[maxWidth$0] = size.width;
    this[minHeight$] = size.height;
    this[maxHeight$] = size.height;
    ;
  }).prototype = _engine.ViewConstraints.prototype;
  dart.addRtiResources(_engine.ViewConstraints, ["_engine|ViewConstraints", "ui|ViewConstraints"]);
  dart.setMethodSignature(_engine.ViewConstraints, () => dart.global.Object.setPrototypeOf({
    isSatisfiedBy: T$12.SizeTobool(),
    '*': T$12.doubleToViewConstraints(),
    '/': T$12.doubleToViewConstraints()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_engine.ViewConstraints))));
  dart.setStaticMethodSignature(_engine.ViewConstraints, () => ['fromJs']);
  dart.setGetterSignature(_engine.ViewConstraints, () => dart.global.Object.setPrototypeOf({isTight: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_engine.ViewConstraints))));
  dart.setLibraryUri(_engine.ViewConstraints, I[220]);
  dart.setFieldSignature(_engine.ViewConstraints, () => dart.global.Object.setPrototypeOf({
    minWidth: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    maxWidth: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    minHeight: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]},
    maxHeight: {type: T$.double(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_engine.ViewConstraints))));
  dart.defineExtensionMethods(_engine.ViewConstraints, ['_equals', 'toString']);
  dart.defineExtensionAccessors(_engine.ViewConstraints, ['hashCode']);
  _engine._detectWebGLVersion = function _detectWebGLVersion() {
    let canvas = _engine.createDomCanvasElement({width: 1, height: 1});
    if (_engine['DomCanvasElementExtension|getContext'](canvas, "webgl2") != null) {
      if (dart.test(_engine._workAroundBug91333)) {
        return 1;
      }
      return 2;
    }
    if (_engine['DomCanvasElementExtension|getContext'](canvas, "webgl") != null) {
      return 1;
    }
    return -1;
  };
  _engine['CanvasKitExtension|MakeAnimatedImageFromEncoded'] = function CanvasKitExtension$124MakeAnimatedImageFromEncoded($this, imageData) {
    if ($this == null) dart.nullFailed(I[231], 71, 20, "#this");
    if (imageData == null) dart.nullFailed(I[231], 71, 59, "imageData");
    return T$12.SkAnimatedImageN()[_as]($this.MakeAnimatedImageFromEncoded(js_interop['Uint8ListToJSUint8Array|get#toJS'](imageData)));
  };
  _engine['CanvasKitExtension|get#MakeAnimatedImageFromEncoded'] = function CanvasKitExtension$124get$35MakeAnimatedImageFromEncoded($this) {
    if ($this == null) dart.nullFailed(I[231], 71, 20, "#this");
    return dart.fn(imageData => {
      if (imageData == null) dart.nullFailed(I[231], 71, 59, "imageData");
      return _engine['CanvasKitExtension|MakeAnimatedImageFromEncoded']($this, imageData);
    }, T$12.Uint8ListToSkAnimatedImageN());
  };
  _engine['CanvasKitExtension|MakeVertices'] = function CanvasKitExtension$124MakeVertices($this, mode, positions, textureCoordinates, colors, indices) {
    let t$36723, t$36723$, t$36723$0;
    if ($this == null) dart.nullFailed(I[231], 89, 14, "#this");
    if (mode == null) dart.nullFailed(I[231], 90, 18, "mode");
    if (positions == null) dart.nullFailed(I[231], 91, 17, "positions");
    return js_util.callMethod(T$10.SkVertices(), $this, "MakeVertices", [mode, js_interop['Float32ListToJSFloat32Array|get#toJS'](positions), (t$36723 = textureCoordinates, t$36723 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$36723)), (t$36723$ = colors, t$36723$ == null ? null : js_interop['Uint32ListToJSUint32Array|get#toJS'](t$36723$)), (t$36723$0 = indices, t$36723$0 == null ? null : js_interop['Uint16ListToJSInt16Array|get#toJS'](t$36723$0))]);
  };
  _engine['CanvasKitExtension|get#MakeVertices'] = function CanvasKitExtension$124get$35MakeVertices($this) {
    if ($this == null) dart.nullFailed(I[231], 89, 14, "#this");
    return dart.fn((mode, positions, textureCoordinates, colors, indices) => {
      if (mode == null) dart.nullFailed(I[231], 90, 18, "mode");
      if (positions == null) dart.nullFailed(I[231], 91, 17, "positions");
      return _engine['CanvasKitExtension|MakeVertices']($this, mode, positions, textureCoordinates, colors, indices);
    }, T$12.SkVertexModeAndFloat32ListAndFloat32ListN__ToSkVertices());
  };
  _engine['CanvasKitExtension|MakeSurface'] = function CanvasKitExtension$124MakeSurface($this, width, height) {
    if ($this == null) dart.nullFailed(I[231], 109, 13, "#this");
    if (width == null) dart.nullFailed(I[231], 110, 12, "width");
    if (height == null) dart.nullFailed(I[231], 111, 12, "height");
    return T$10.SkSurface()[_as]($this.MakeSurface(js_interop['DoubleToJSNumber|get#toJS'](width), js_interop['DoubleToJSNumber|get#toJS'](height)));
  };
  _engine['CanvasKitExtension|get#MakeSurface'] = function CanvasKitExtension$124get$35MakeSurface($this) {
    if ($this == null) dart.nullFailed(I[231], 109, 13, "#this");
    return dart.fn((width, height) => {
      if (width == null) dart.nullFailed(I[231], 110, 12, "width");
      if (height == null) dart.nullFailed(I[231], 111, 12, "height");
      return _engine['CanvasKitExtension|MakeSurface']($this, width, height);
    }, T$12.doubleAnddoubleToSkSurface());
  };
  _engine['CanvasKitExtension|get#getDataBytes'] = function CanvasKitExtension$124get$35getDataBytes($this) {
    if ($this == null) dart.nullFailed(I[231], 118, 13, "#this");
    return dart.fn(skData => {
      if (skData == null) dart.nullFailed(I[231], 119, 12, "skData");
      return _engine['CanvasKitExtension|getDataBytes']($this, skData);
    }, T$12.SkDataToUint8List());
  };
  _engine['CanvasKitExtension|getDataBytes'] = function CanvasKitExtension$124getDataBytes($this, skData) {
    if ($this == null) dart.nullFailed(I[231], 118, 13, "#this");
    if (skData == null) dart.nullFailed(I[231], 119, 12, "skData");
    return js_interop['JSUint8ArrayToUint8List|get#toDart'](T$3.NativeUint8List()[_as]($this.getDataBytes(skData)));
  };
  _engine['CanvasKitExtension|get#NoDecoration'] = function CanvasKitExtension$124get$35NoDecoration($this) {
    if ($this == null) dart.nullFailed(I[231], 125, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "NoDecoration"));
  };
  _engine['CanvasKitExtension|get#UnderlineDecoration'] = function CanvasKitExtension$124get$35UnderlineDecoration($this) {
    if ($this == null) dart.nullFailed(I[231], 129, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "UnderlineDecoration"));
  };
  _engine['CanvasKitExtension|get#OverlineDecoration'] = function CanvasKitExtension$124get$35OverlineDecoration($this) {
    if ($this == null) dart.nullFailed(I[231], 133, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "OverlineDecoration"));
  };
  _engine['CanvasKitExtension|get#LineThroughDecoration'] = function CanvasKitExtension$124get$35LineThroughDecoration($this) {
    if ($this == null) dart.nullFailed(I[231], 137, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "LineThroughDecoration"));
  };
  _engine['CanvasKitExtension|GetWebGLContext'] = function CanvasKitExtension$124GetWebGLContext($this, canvas, options) {
    if ($this == null) dart.nullFailed(I[231], 152, 10, "#this");
    if (canvas == null) dart.nullFailed(I[231], 153, 24, "canvas");
    if (options == null) dart.nullFailed(I[231], 153, 54, "options");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.GetWebGLContext(canvas, options)));
  };
  _engine['CanvasKitExtension|get#GetWebGLContext'] = function CanvasKitExtension$124get$35GetWebGLContext($this) {
    if ($this == null) dart.nullFailed(I[231], 152, 10, "#this");
    return dart.fn((canvas, options) => {
      if (canvas == null) dart.nullFailed(I[231], 153, 24, "canvas");
      if (options == null) dart.nullFailed(I[231], 153, 54, "options");
      return _engine['CanvasKitExtension|GetWebGLContext']($this, canvas, options);
    }, T$12.DomCanvasElementAndSkWebGLContextOptionsTodouble());
  };
  _engine['CanvasKitExtension|GetOffscreenWebGLContext'] = function CanvasKitExtension$124GetOffscreenWebGLContext($this, canvas, options) {
    if ($this == null) dart.nullFailed(I[231], 159, 10, "#this");
    if (canvas == null) dart.nullFailed(I[231], 160, 30, "canvas");
    if (options == null) dart.nullFailed(I[231], 160, 60, "options");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.GetWebGLContext(canvas, options)));
  };
  _engine['CanvasKitExtension|get#GetOffscreenWebGLContext'] = function CanvasKitExtension$124get$35GetOffscreenWebGLContext($this) {
    if ($this == null) dart.nullFailed(I[231], 159, 10, "#this");
    return dart.fn((canvas, options) => {
      if (canvas == null) dart.nullFailed(I[231], 160, 30, "canvas");
      if (options == null) dart.nullFailed(I[231], 160, 60, "options");
      return _engine['CanvasKitExtension|GetOffscreenWebGLContext']($this, canvas, options);
    }, T$12.DomOffscreenCanvasAndSkWebGLContextOptionsTodouble());
  };
  _engine['CanvasKitExtension|get#MakeGrContext'] = function CanvasKitExtension$124get$35MakeGrContext($this) {
    if ($this == null) dart.nullFailed(I[231], 165, 15, "#this");
    return dart.fn(glContext => {
      if (glContext == null) dart.nullFailed(I[231], 165, 36, "glContext");
      return _engine['CanvasKitExtension|MakeGrContext']($this, glContext);
    }, T$12.doubleToSkGrContext());
  };
  _engine['CanvasKitExtension|MakeGrContext'] = function CanvasKitExtension$124MakeGrContext($this, glContext) {
    if ($this == null) dart.nullFailed(I[231], 165, 15, "#this");
    if (glContext == null) dart.nullFailed(I[231], 165, 36, "glContext");
    return T$12.SkGrContext()[_as]($this.MakeGrContext(js_interop['DoubleToJSNumber|get#toJS'](glContext)));
  };
  _engine['CanvasKitExtension|MakeOnScreenGLSurface'] = function CanvasKitExtension$124MakeOnScreenGLSurface($this, grContext, width, height, colorSpace, sampleCount, stencil) {
    if ($this == null) dart.nullFailed(I[231], 177, 14, "#this");
    if (grContext == null) dart.nullFailed(I[231], 178, 17, "grContext");
    if (width == null) dart.nullFailed(I[231], 179, 12, "width");
    if (height == null) dart.nullFailed(I[231], 180, 12, "height");
    if (colorSpace == null) dart.nullFailed(I[231], 181, 16, "colorSpace");
    if (sampleCount == null) dart.nullFailed(I[231], 182, 9, "sampleCount");
    if (stencil == null) dart.nullFailed(I[231], 183, 9, "stencil");
    return js_util.callMethod(T$12.SkSurfaceN(), $this, "MakeOnScreenGLSurface", [grContext, js_interop['DoubleToJSNumber|get#toJS'](width), js_interop['DoubleToJSNumber|get#toJS'](height), colorSpace, js_interop['NumToJSExtension|get#toJS'](sampleCount), js_interop['NumToJSExtension|get#toJS'](stencil)]);
  };
  _engine['CanvasKitExtension|get#MakeOnScreenGLSurface'] = function CanvasKitExtension$124get$35MakeOnScreenGLSurface($this) {
    if ($this == null) dart.nullFailed(I[231], 177, 14, "#this");
    return dart.fn((grContext, width, height, colorSpace, sampleCount, stencil) => {
      if (grContext == null) dart.nullFailed(I[231], 178, 17, "grContext");
      if (width == null) dart.nullFailed(I[231], 179, 12, "width");
      if (height == null) dart.nullFailed(I[231], 180, 12, "height");
      if (colorSpace == null) dart.nullFailed(I[231], 181, 16, "colorSpace");
      if (sampleCount == null) dart.nullFailed(I[231], 182, 9, "sampleCount");
      if (stencil == null) dart.nullFailed(I[231], 183, 9, "stencil");
      return _engine['CanvasKitExtension|MakeOnScreenGLSurface']($this, grContext, width, height, colorSpace, sampleCount, stencil);
    }, T$12.SkGrContextAnddoubleAnddouble__ToSkSurfaceN());
  };
  _engine['CanvasKitExtension|MakeRenderTarget'] = function CanvasKitExtension$124MakeRenderTarget($this, grContext, width, height) {
    if ($this == null) dart.nullFailed(I[231], 193, 14, "#this");
    if (grContext == null) dart.nullFailed(I[231], 194, 17, "grContext");
    if (width == null) dart.nullFailed(I[231], 195, 9, "width");
    if (height == null) dart.nullFailed(I[231], 196, 9, "height");
    return T$12.SkSurfaceN()[_as]($this.MakeRenderTarget(grContext, js_interop['NumToJSExtension|get#toJS'](width), js_interop['NumToJSExtension|get#toJS'](height)));
  };
  _engine['CanvasKitExtension|get#MakeRenderTarget'] = function CanvasKitExtension$124get$35MakeRenderTarget($this) {
    if ($this == null) dart.nullFailed(I[231], 193, 14, "#this");
    return dart.fn((grContext, width, height) => {
      if (grContext == null) dart.nullFailed(I[231], 194, 17, "grContext");
      if (width == null) dart.nullFailed(I[231], 195, 9, "width");
      if (height == null) dart.nullFailed(I[231], 196, 9, "height");
      return _engine['CanvasKitExtension|MakeRenderTarget']($this, grContext, width, height);
    }, T$12.SkGrContextAndintAndintToSkSurfaceN());
  };
  _engine['CanvasKitExtension|MakeImage'] = function CanvasKitExtension$124MakeImage($this, info, pixels, bytesPerRow) {
    if ($this == null) dart.nullFailed(I[231], 217, 12, "#this");
    if (info == null) dart.nullFailed(I[231], 218, 17, "info");
    if (pixels == null) dart.nullFailed(I[231], 219, 15, "pixels");
    if (bytesPerRow == null) dart.nullFailed(I[231], 220, 12, "bytesPerRow");
    return T$12.SkImageN()[_as]($this.MakeImage(info, js_interop['Uint8ListToJSUint8Array|get#toJS'](pixels), js_interop['DoubleToJSNumber|get#toJS'](bytesPerRow)));
  };
  _engine['CanvasKitExtension|get#MakeImage'] = function CanvasKitExtension$124get$35MakeImage($this) {
    if ($this == null) dart.nullFailed(I[231], 217, 12, "#this");
    return dart.fn((info, pixels, bytesPerRow) => {
      if (info == null) dart.nullFailed(I[231], 218, 17, "info");
      if (pixels == null) dart.nullFailed(I[231], 219, 15, "pixels");
      if (bytesPerRow == null) dart.nullFailed(I[231], 220, 12, "bytesPerRow");
      return _engine['CanvasKitExtension|MakeImage']($this, info, pixels, bytesPerRow);
    }, T$12.SkImageInfoAndUint8ListAnddoubleToSkImageN());
  };
  _engine['CanvasKitExtension|MakeLazyImageFromTextureSourceWithInfo'] = function CanvasKitExtension$124MakeLazyImageFromTextureSourceWithInfo($this, src, info) {
    if ($this == null) dart.nullFailed(I[231], 236, 12, "#this");
    if (src == null) dart.nullFailed(I[231], 237, 12, "src");
    if (info == null) dart.nullFailed(I[231], 238, 24, "info");
    return T$12.SkImageN()[_as]($this.MakeLazyImageFromTextureSource(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](src), info));
  };
  _engine['CanvasKitExtension|get#MakeLazyImageFromTextureSourceWithInfo'] = function CanvasKitExtension$124get$35MakeLazyImageFromTextureSourceWithInfo($this) {
    if ($this == null) dart.nullFailed(I[231], 236, 12, "#this");
    return dart.fn((src, info) => {
      if (src == null) dart.nullFailed(I[231], 237, 12, "src");
      if (info == null) dart.nullFailed(I[231], 238, 24, "info");
      return _engine['CanvasKitExtension|MakeLazyImageFromTextureSourceWithInfo']($this, src, info);
    }, T$12.ObjectAndSkPartialImageInfoToSkImageN());
  };
  _engine['CanvasKitExtension|MakeLazyImageFromImageBitmap'] = function CanvasKitExtension$124MakeLazyImageFromImageBitmap($this, imageBitmap, hasPremultipliedAlpha) {
    if ($this == null) dart.nullFailed(I[231], 241, 12, "#this");
    if (imageBitmap == null) dart.nullFailed(I[231], 242, 20, "imageBitmap");
    if (hasPremultipliedAlpha == null) dart.nullFailed(I[231], 243, 10, "hasPremultipliedAlpha");
    return T$12.SkImageN()[_as]($this.MakeLazyImageFromTextureSource(T$3.JSObject()[_as](imageBitmap), js_interop['NumToJSExtension|get#toJS'](0), js_interop['BoolToJSBoolean|get#toJS'](hasPremultipliedAlpha)));
  };
  _engine['CanvasKitExtension|get#MakeLazyImageFromImageBitmap'] = function CanvasKitExtension$124get$35MakeLazyImageFromImageBitmap($this) {
    if ($this == null) dart.nullFailed(I[231], 241, 12, "#this");
    return dart.fn((imageBitmap, hasPremultipliedAlpha) => {
      if (imageBitmap == null) dart.nullFailed(I[231], 242, 20, "imageBitmap");
      if (hasPremultipliedAlpha == null) dart.nullFailed(I[231], 243, 10, "hasPremultipliedAlpha");
      return _engine['CanvasKitExtension|MakeLazyImageFromImageBitmap']($this, imageBitmap, hasPremultipliedAlpha);
    }, T$12.DomImageBitmapAndboolToSkImageN());
  };
  _engine.createLocateFileCallback = function createLocateFileCallback(callback) {
    if (callback == null) dart.nullFailed(I[231], 262, 56, "callback");
    return js_util._functionToJS2(callback);
  };
  _engine['SkSurfaceExtension|get#width'] = function SkSurfaceExtension$124get$35width($this) {
    if ($this == null) dart.nullFailed(I[231], 309, 10, "#this");
    return dart.fn(() => _engine['SkSurfaceExtension|width']($this), T$.VoidTodouble());
  };
  _engine['SkSurfaceExtension|width'] = function SkSurfaceExtension$124width($this) {
    if ($this == null) dart.nullFailed(I[231], 309, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.width()));
  };
  _engine['SkSurfaceExtension|height'] = function SkSurfaceExtension$124height($this) {
    if ($this == null) dart.nullFailed(I[231], 313, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.height()));
  };
  _engine['SkSurfaceExtension|get#height'] = function SkSurfaceExtension$124get$35height($this) {
    if ($this == null) dart.nullFailed(I[231], 313, 10, "#this");
    return dart.fn(() => _engine['SkSurfaceExtension|height']($this), T$.VoidTodouble());
  };
  _engine['SkGrContextExtension|get#setResourceCacheLimitBytes'] = function SkGrContextExtension$124get$35setResourceCacheLimitBytes($this) {
    if ($this == null) dart.nullFailed(I[231], 326, 8, "#this");
    return dart.fn(limit => {
      if (limit == null) dart.nullFailed(I[231], 326, 42, "limit");
      return _engine['SkGrContextExtension|setResourceCacheLimitBytes']($this, limit);
    }, T$9.doubleTovoid());
  };
  _engine['SkGrContextExtension|setResourceCacheLimitBytes'] = function SkGrContextExtension$124setResourceCacheLimitBytes($this, limit) {
    if ($this == null) dart.nullFailed(I[231], 326, 8, "#this");
    if (limit == null) dart.nullFailed(I[231], 326, 42, "limit");
    return $this.setResourceCacheLimitBytes(js_interop['DoubleToJSNumber|get#toJS'](limit));
  };
  _engine['SkFontSlantExtension|get#value'] = function SkFontSlantExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 350, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkFontSlant = function toSkFontSlant(style) {
    if (style == null) dart.nullFailed(I[231], 358, 40, "style");
    return _engine._skFontSlants[$_get](style.index);
  };
  _engine['SkFontWeightExtension|get#value'] = function SkFontWeightExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 386, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkFontWeight = function toSkFontWeight(weight) {
    if (weight == null) dart.nullFailed(I[231], 401, 43, "weight");
    return _engine._skFontWeights[$_get](weight.index);
  };
  _engine['SkAffinityExtension|get#value'] = function SkAffinityExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 421, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkAffinity = function toSkAffinity(affinity) {
    if (affinity == null) dart.nullFailed(I[231], 429, 41, "affinity");
    return _engine._skAffinitys[$_get](affinity.index);
  };
  _engine['SkTextDirectionExtension|get#value'] = function SkTextDirectionExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 449, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkTextDirection = function toSkTextDirection(direction) {
    if (direction == null) dart.nullFailed(I[231], 459, 52, "direction");
    return _engine._skTextDirections[$_get](direction.index);
  };
  _engine['SkTextAlignExtension|get#value'] = function SkTextAlignExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 483, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkTextAlign = function toSkTextAlign(align) {
    if (align == null) dart.nullFailed(I[231], 495, 40, "align");
    return _engine._skTextAligns[$_get](align.index);
  };
  _engine['SkTextHeightBehaviorExtension|get#value'] = function SkTextHeightBehaviorExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 517, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkTextHeightBehavior = function toSkTextHeightBehavior(behavior) {
    if (behavior == null) dart.nullFailed(I[231], 528, 67, "behavior");
    let index = ((dart.test(behavior.applyHeightToFirstAscent) ? 0 : 1 << 0) | (dart.test(behavior.applyHeightToLastDescent) ? 0 : 1 << 1)) >>> 0;
    return _engine._skTextHeightBehaviors[$_get](index);
  };
  _engine['SkRectHeightStyleExtension|get#value'] = function SkRectHeightStyleExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 554, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkRectHeightStyle = function toSkRectHeightStyle(style) {
    if (style == null) dart.nullFailed(I[231], 566, 57, "style");
    return _engine._skRectHeightStyles[$_get](style.index);
  };
  _engine['SkRectWidthStyleExtension|get#value'] = function SkRectWidthStyleExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 586, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkRectWidthStyle = function toSkRectWidthStyle(style) {
    if (style == null) dart.nullFailed(I[231], 594, 54, "style");
    let index = style.index;
    return _engine._skRectWidthStyles[$_get](dart.notNull(index) < 2 ? index : 0);
  };
  _engine['SkVertexModeExtension|get#value'] = function SkVertexModeExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 616, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkVertexMode = function toSkVertexMode(mode) {
    if (mode == null) dart.nullFailed(I[231], 625, 43, "mode");
    return _engine._skVertexModes[$_get](mode.index);
  };
  _engine['SkPointModeExtension|get#value'] = function SkPointModeExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 646, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkPointMode = function toSkPointMode(mode) {
    if (mode == null) dart.nullFailed(I[231], 655, 40, "mode");
    return _engine._skPointModes[$_get](mode.index);
  };
  _engine['SkClipOpExtension|get#value'] = function SkClipOpExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 675, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkClipOp = function toSkClipOp(clipOp) {
    if (clipOp == null) dart.nullFailed(I[231], 683, 31, "clipOp");
    return _engine._skClipOps[$_get](clipOp.index);
  };
  _engine['SkFillTypeExtension|get#value'] = function SkFillTypeExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 703, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkFillType = function toSkFillType(fillType) {
    if (fillType == null) dart.nullFailed(I[231], 711, 41, "fillType");
    return _engine._skFillTypes[$_get](fillType.index);
  };
  _engine['SkPathOpExtension|get#value'] = function SkPathOpExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 734, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkPathOp = function toSkPathOp(pathOp) {
    if (pathOp == null) dart.nullFailed(I[231], 745, 38, "pathOp");
    return _engine._skPathOps[$_get](pathOp.index);
  };
  _engine['SkBlurStyleExtension|get#value'] = function SkBlurStyleExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 767, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkBlurStyle = function toSkBlurStyle(style) {
    if (style == null) dart.nullFailed(I[231], 777, 40, "style");
    return _engine._skBlurStyles[$_get](style.index);
  };
  _engine['SkStrokeCapExtension|get#value'] = function SkStrokeCapExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 798, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkStrokeCap = function toSkStrokeCap(strokeCap) {
    if (strokeCap == null) dart.nullFailed(I[231], 807, 40, "strokeCap");
    return _engine._skStrokeCaps[$_get](strokeCap.index);
  };
  _engine['SkPaintStyleExtension|get#value'] = function SkPaintStyleExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 827, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkPaintStyle = function toSkPaintStyle(paintStyle) {
    if (paintStyle == null) dart.nullFailed(I[231], 835, 46, "paintStyle");
    return _engine._skPaintStyles[$_get](paintStyle.index);
  };
  _engine['SkBlendModeExtension|get#value'] = function SkBlendModeExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 882, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkBlendMode = function toSkBlendMode(blendMode) {
    if (blendMode == null) dart.nullFailed(I[231], 917, 40, "blendMode");
    return _engine._skBlendModes[$_get](blendMode.index);
  };
  _engine['SkStrokeJoinExtension|get#value'] = function SkStrokeJoinExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 938, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkStrokeJoin = function toSkStrokeJoin(strokeJoin) {
    if (strokeJoin == null) dart.nullFailed(I[231], 947, 43, "strokeJoin");
    return _engine._skStrokeJoins[$_get](strokeJoin.index);
  };
  _engine['SkTileModeExtension|get#value'] = function SkTileModeExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 969, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkTileMode = function toSkTileMode(mode) {
    if (mode == null) dart.nullFailed(I[231], 979, 37, "mode");
    return _engine._skTileModes[$_get](mode.index);
  };
  _engine['SkFilterModeExtension|get#value'] = function SkFilterModeExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 999, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkFilterMode = function toSkFilterMode(filterQuality) {
    if (filterQuality == null) dart.nullFailed(I[231], 1002, 46, "filterQuality");
    return filterQuality == ui.FilterQuality.none ? js_util.getProperty(T$12.SkFilterMode(), js_util.getProperty(T$12.SkFilterModeEnum(), _engine.canvasKit, "FilterMode"), "Nearest") : js_util.getProperty(T$12.SkFilterMode(), js_util.getProperty(T$12.SkFilterModeEnum(), _engine.canvasKit, "FilterMode"), "Linear");
  };
  _engine['SkMipmapModeExtension|get#value'] = function SkMipmapModeExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 1025, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkMipmapMode = function toSkMipmapMode(filterQuality) {
    if (filterQuality == null) dart.nullFailed(I[231], 1028, 46, "filterQuality");
    return filterQuality == ui.FilterQuality.medium ? js_util.getProperty(T$12.SkMipmapMode(), js_util.getProperty(T$12.SkMipmapModeEnum(), _engine.canvasKit, "MipmapMode"), "Linear") : js_util.getProperty(T$12.SkMipmapMode(), js_util.getProperty(T$12.SkMipmapModeEnum(), _engine.canvasKit, "MipmapMode"), "None");
  };
  _engine['SkAlphaTypeExtension|get#value'] = function SkAlphaTypeExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 1051, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine['SkColorTypeExtension|get#value'] = function SkColorTypeExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 1079, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine['SkAnimatedImageExtension|get#getFrameCount'] = function SkAnimatedImageExtension$124get$35getFrameCount($this) {
    if ($this == null) dart.nullFailed(I[231], 1090, 10, "#this");
    return dart.fn(() => _engine['SkAnimatedImageExtension|getFrameCount']($this), T$.VoidTodouble());
  };
  _engine['SkAnimatedImageExtension|getFrameCount'] = function SkAnimatedImageExtension$124getFrameCount($this) {
    if ($this == null) dart.nullFailed(I[231], 1090, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getFrameCount()));
  };
  _engine['SkAnimatedImageExtension|getRepetitionCount'] = function SkAnimatedImageExtension$124getRepetitionCount($this) {
    if ($this == null) dart.nullFailed(I[231], 1094, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getRepetitionCount()));
  };
  _engine['SkAnimatedImageExtension|get#getRepetitionCount'] = function SkAnimatedImageExtension$124get$35getRepetitionCount($this) {
    if ($this == null) dart.nullFailed(I[231], 1094, 10, "#this");
    return dart.fn(() => _engine['SkAnimatedImageExtension|getRepetitionCount']($this), T$.VoidTodouble());
  };
  _engine['SkAnimatedImageExtension|currentFrameDuration'] = function SkAnimatedImageExtension$124currentFrameDuration($this) {
    if ($this == null) dart.nullFailed(I[231], 1099, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.currentFrameDuration()));
  };
  _engine['SkAnimatedImageExtension|get#currentFrameDuration'] = function SkAnimatedImageExtension$124get$35currentFrameDuration($this) {
    if ($this == null) dart.nullFailed(I[231], 1099, 10, "#this");
    return dart.fn(() => _engine['SkAnimatedImageExtension|currentFrameDuration']($this), T$.VoidTodouble());
  };
  _engine['SkAnimatedImageExtension|decodeNextFrame'] = function SkAnimatedImageExtension$124decodeNextFrame($this) {
    if ($this == null) dart.nullFailed(I[231], 1104, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.decodeNextFrame()));
  };
  _engine['SkAnimatedImageExtension|get#decodeNextFrame'] = function SkAnimatedImageExtension$124get$35decodeNextFrame($this) {
    if ($this == null) dart.nullFailed(I[231], 1104, 10, "#this");
    return dart.fn(() => _engine['SkAnimatedImageExtension|decodeNextFrame']($this), T$.VoidTodouble());
  };
  _engine['SkAnimatedImageExtension|width'] = function SkAnimatedImageExtension$124width($this) {
    if ($this == null) dart.nullFailed(I[231], 1110, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.width()));
  };
  _engine['SkAnimatedImageExtension|get#width'] = function SkAnimatedImageExtension$124get$35width($this) {
    if ($this == null) dart.nullFailed(I[231], 1110, 10, "#this");
    return dart.fn(() => _engine['SkAnimatedImageExtension|width']($this), T$.VoidTodouble());
  };
  _engine['SkAnimatedImageExtension|height'] = function SkAnimatedImageExtension$124height($this) {
    if ($this == null) dart.nullFailed(I[231], 1114, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.height()));
  };
  _engine['SkAnimatedImageExtension|get#height'] = function SkAnimatedImageExtension$124get$35height($this) {
    if ($this == null) dart.nullFailed(I[231], 1114, 10, "#this");
    return dart.fn(() => _engine['SkAnimatedImageExtension|height']($this), T$.VoidTodouble());
  };
  _engine['SkAnimatedImageExtension|get#isDeleted'] = function SkAnimatedImageExtension$124get$35isDeleted($this) {
    if ($this == null) dart.nullFailed(I[231], 1123, 8, "#this");
    return dart.fn(() => _engine['SkAnimatedImageExtension|isDeleted']($this), T$.VoidTobool());
  };
  _engine['SkAnimatedImageExtension|isDeleted'] = function SkAnimatedImageExtension$124isDeleted($this) {
    if ($this == null) dart.nullFailed(I[231], 1123, 8, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.isDeleted()));
  };
  _engine['SkImageExtension|width'] = function SkImageExtension$124width($this) {
    if ($this == null) dart.nullFailed(I[231], 1136, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.width()));
  };
  _engine['SkImageExtension|get#width'] = function SkImageExtension$124get$35width($this) {
    if ($this == null) dart.nullFailed(I[231], 1136, 10, "#this");
    return dart.fn(() => _engine['SkImageExtension|width']($this), T$.VoidTodouble());
  };
  _engine['SkImageExtension|get#height'] = function SkImageExtension$124get$35height($this) {
    if ($this == null) dart.nullFailed(I[231], 1140, 10, "#this");
    return dart.fn(() => _engine['SkImageExtension|height']($this), T$.VoidTodouble());
  };
  _engine['SkImageExtension|height'] = function SkImageExtension$124height($this) {
    if ($this == null) dart.nullFailed(I[231], 1140, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.height()));
  };
  _engine['SkImageExtension|makeShaderCubic'] = function SkImageExtension$124makeShaderCubic($this, tileModeX, tileModeY, B, C, matrix) {
    let t$36796;
    if ($this == null) dart.nullFailed(I[231], 1150, 12, "#this");
    if (tileModeX == null) dart.nullFailed(I[231], 1151, 16, "tileModeX");
    if (tileModeY == null) dart.nullFailed(I[231], 1152, 16, "tileModeY");
    if (B == null) dart.nullFailed(I[231], 1153, 12, "B");
    if (C == null) dart.nullFailed(I[231], 1154, 12, "C");
    return js_util.callMethod(T$10.SkShader(), $this, "makeShaderCubic", [tileModeX, tileModeY, js_interop['DoubleToJSNumber|get#toJS'](B), js_interop['DoubleToJSNumber|get#toJS'](C), (t$36796 = matrix, t$36796 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$36796))]);
  };
  _engine['SkImageExtension|get#makeShaderCubic'] = function SkImageExtension$124get$35makeShaderCubic($this) {
    if ($this == null) dart.nullFailed(I[231], 1150, 12, "#this");
    return dart.fn((tileModeX, tileModeY, B, C, matrix) => {
      if (tileModeX == null) dart.nullFailed(I[231], 1151, 16, "tileModeX");
      if (tileModeY == null) dart.nullFailed(I[231], 1152, 16, "tileModeY");
      if (B == null) dart.nullFailed(I[231], 1153, 12, "B");
      if (C == null) dart.nullFailed(I[231], 1154, 12, "C");
      return _engine['SkImageExtension|makeShaderCubic']($this, tileModeX, tileModeY, B, C, matrix);
    }, T$12.SkTileModeAndSkTileModeAnddouble__ToSkShader());
  };
  _engine['SkImageExtension|makeShaderOptions'] = function SkImageExtension$124makeShaderOptions($this, tileModeX, tileModeY, filterMode, mipmapMode, matrix) {
    let t$36798;
    if ($this == null) dart.nullFailed(I[231], 1166, 12, "#this");
    if (tileModeX == null) dart.nullFailed(I[231], 1167, 16, "tileModeX");
    if (tileModeY == null) dart.nullFailed(I[231], 1168, 16, "tileModeY");
    if (filterMode == null) dart.nullFailed(I[231], 1169, 18, "filterMode");
    if (mipmapMode == null) dart.nullFailed(I[231], 1170, 18, "mipmapMode");
    return js_util.callMethod(T$10.SkShader(), $this, "makeShaderOptions", [tileModeX, tileModeY, filterMode, mipmapMode, (t$36798 = matrix, t$36798 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$36798))]);
  };
  _engine['SkImageExtension|get#makeShaderOptions'] = function SkImageExtension$124get$35makeShaderOptions($this) {
    if ($this == null) dart.nullFailed(I[231], 1166, 12, "#this");
    return dart.fn((tileModeX, tileModeY, filterMode, mipmapMode, matrix) => {
      if (tileModeX == null) dart.nullFailed(I[231], 1167, 16, "tileModeX");
      if (tileModeY == null) dart.nullFailed(I[231], 1168, 16, "tileModeY");
      if (filterMode == null) dart.nullFailed(I[231], 1169, 18, "filterMode");
      if (mipmapMode == null) dart.nullFailed(I[231], 1170, 18, "mipmapMode");
      return _engine['SkImageExtension|makeShaderOptions']($this, tileModeX, tileModeY, filterMode, mipmapMode, matrix);
    }, T$12.SkTileModeAndSkTileModeAndSkFilterMode__ToSkShader());
  };
  _engine['SkImageExtension|get#readPixels'] = function SkImageExtension$124get$35readPixels($this) {
    if ($this == null) dart.nullFailed(I[231], 1178, 13, "#this");
    return dart.fn((srcX, srcY, imageInfo) => {
      if (srcX == null) dart.nullFailed(I[231], 1178, 31, "srcX");
      if (srcY == null) dart.nullFailed(I[231], 1178, 44, "srcY");
      if (imageInfo == null) dart.nullFailed(I[231], 1178, 62, "imageInfo");
      return _engine['SkImageExtension|readPixels']($this, srcX, srcY, imageInfo);
    }, T$12.doubleAnddoubleAndSkImageInfoToUint8List());
  };
  _engine['SkImageExtension|readPixels'] = function SkImageExtension$124readPixels($this, srcX, srcY, imageInfo) {
    if ($this == null) dart.nullFailed(I[231], 1178, 13, "#this");
    if (srcX == null) dart.nullFailed(I[231], 1178, 31, "srcX");
    if (srcY == null) dart.nullFailed(I[231], 1178, 44, "srcY");
    if (imageInfo == null) dart.nullFailed(I[231], 1178, 62, "imageInfo");
    return js_interop['JSUint8ArrayToUint8List|get#toDart'](T$3.NativeUint8List()[_as]($this.readPixels(js_interop['DoubleToJSNumber|get#toJS'](srcX), js_interop['DoubleToJSNumber|get#toJS'](srcY), imageInfo)));
  };
  _engine['SkImageExtension|encodeToBytes'] = function SkImageExtension$124encodeToBytes($this) {
    let t$36802;
    if ($this == null) dart.nullFailed(I[231], 1183, 14, "#this");
    t$36802 = T$12.NativeUint8ListN()[_as]($this.encodeToBytes());
    return t$36802 == null ? null : js_interop['JSUint8ArrayToUint8List|get#toDart'](t$36802);
  };
  _engine['SkImageExtension|get#encodeToBytes'] = function SkImageExtension$124get$35encodeToBytes($this) {
    if ($this == null) dart.nullFailed(I[231], 1183, 14, "#this");
    return dart.fn(() => _engine['SkImageExtension|encodeToBytes']($this), T$12.VoidToUint8ListN());
  };
  _engine['SkImageExtension|isAliasOf'] = function SkImageExtension$124isAliasOf($this, other) {
    if ($this == null) dart.nullFailed(I[231], 1187, 8, "#this");
    if (other == null) dart.nullFailed(I[231], 1187, 26, "other");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.isAliasOf(other)));
  };
  _engine['SkImageExtension|get#isAliasOf'] = function SkImageExtension$124get$35isAliasOf($this) {
    if ($this == null) dart.nullFailed(I[231], 1187, 8, "#this");
    return dart.fn(other => {
      if (other == null) dart.nullFailed(I[231], 1187, 26, "other");
      return _engine['SkImageExtension|isAliasOf']($this, other);
    }, T$12.SkImageTobool());
  };
  _engine['SkImageExtension|isDeleted'] = function SkImageExtension$124isDeleted($this) {
    if ($this == null) dart.nullFailed(I[231], 1191, 8, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.isDeleted()));
  };
  _engine['SkImageExtension|get#isDeleted'] = function SkImageExtension$124get$35isDeleted($this) {
    if ($this == null) dart.nullFailed(I[231], 1191, 8, "#this");
    return dart.fn(() => _engine['SkImageExtension|isDeleted']($this), T$.VoidTobool());
  };
  _engine['SkShaderNamespaceExtension|MakeLinearGradient'] = function SkShaderNamespaceExtension$124MakeLinearGradient($this, from, to, colors, colorStops, tileMode, matrix) {
    let t$36808;
    if ($this == null) dart.nullFailed(I[231], 1208, 12, "#this");
    if (from == null) dart.nullFailed(I[231], 1209, 17, "from");
    if (to == null) dart.nullFailed(I[231], 1210, 17, "to");
    if (colors == null) dart.nullFailed(I[231], 1211, 16, "colors");
    if (colorStops == null) dart.nullFailed(I[231], 1212, 17, "colorStops");
    if (tileMode == null) dart.nullFailed(I[231], 1213, 16, "tileMode");
    return js_util.callMethod(T$10.SkShader(), $this, "MakeLinearGradient", [js_interop['Float32ListToJSFloat32Array|get#toJS'](from), js_interop['Float32ListToJSFloat32Array|get#toJS'](to), js_interop['Uint32ListToJSUint32Array|get#toJS'](colors), js_interop['Float32ListToJSFloat32Array|get#toJS'](colorStops), tileMode, (t$36808 = matrix, t$36808 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$36808))]);
  };
  _engine['SkShaderNamespaceExtension|get#MakeLinearGradient'] = function SkShaderNamespaceExtension$124get$35MakeLinearGradient($this) {
    if ($this == null) dart.nullFailed(I[231], 1208, 12, "#this");
    return dart.fn((from, to, colors, colorStops, tileMode, matrix) => {
      if (from == null) dart.nullFailed(I[231], 1209, 17, "from");
      if (to == null) dart.nullFailed(I[231], 1210, 17, "to");
      if (colors == null) dart.nullFailed(I[231], 1211, 16, "colors");
      if (colorStops == null) dart.nullFailed(I[231], 1212, 17, "colorStops");
      if (tileMode == null) dart.nullFailed(I[231], 1213, 16, "tileMode");
      return _engine['SkShaderNamespaceExtension|MakeLinearGradient']($this, from, to, colors, colorStops, tileMode, matrix);
    }, T$12.Float32ListAndFloat32ListAndUint32List__ToSkShader());
  };
  _engine['SkShaderNamespaceExtension|MakeRadialGradient'] = function SkShaderNamespaceExtension$124MakeRadialGradient($this, center, radius, colors, colorStops, tileMode, matrix, flags) {
    let t$36810;
    if ($this == null) dart.nullFailed(I[231], 1228, 12, "#this");
    if (center == null) dart.nullFailed(I[231], 1229, 17, "center");
    if (radius == null) dart.nullFailed(I[231], 1230, 12, "radius");
    if (colors == null) dart.nullFailed(I[231], 1231, 16, "colors");
    if (colorStops == null) dart.nullFailed(I[231], 1232, 17, "colorStops");
    if (tileMode == null) dart.nullFailed(I[231], 1233, 16, "tileMode");
    if (flags == null) dart.nullFailed(I[231], 1235, 12, "flags");
    return js_util.callMethod(T$10.SkShader(), $this, "MakeRadialGradient", [js_interop['Float32ListToJSFloat32Array|get#toJS'](center), js_interop['DoubleToJSNumber|get#toJS'](radius), js_interop['Uint32ListToJSUint32Array|get#toJS'](colors), js_interop['Float32ListToJSFloat32Array|get#toJS'](colorStops), tileMode, (t$36810 = matrix, t$36810 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$36810)), js_interop['DoubleToJSNumber|get#toJS'](flags)]);
  };
  _engine['SkShaderNamespaceExtension|get#MakeRadialGradient'] = function SkShaderNamespaceExtension$124get$35MakeRadialGradient($this) {
    if ($this == null) dart.nullFailed(I[231], 1228, 12, "#this");
    return dart.fn((center, radius, colors, colorStops, tileMode, matrix, flags) => {
      if (center == null) dart.nullFailed(I[231], 1229, 17, "center");
      if (radius == null) dart.nullFailed(I[231], 1230, 12, "radius");
      if (colors == null) dart.nullFailed(I[231], 1231, 16, "colors");
      if (colorStops == null) dart.nullFailed(I[231], 1232, 17, "colorStops");
      if (tileMode == null) dart.nullFailed(I[231], 1233, 16, "tileMode");
      if (flags == null) dart.nullFailed(I[231], 1235, 12, "flags");
      return _engine['SkShaderNamespaceExtension|MakeRadialGradient']($this, center, radius, colors, colorStops, tileMode, matrix, flags);
    }, T$12.Float32ListAnddoubleAndUint32List__ToSkShader());
  };
  _engine['SkShaderNamespaceExtension|MakeTwoPointConicalGradient'] = function SkShaderNamespaceExtension$124MakeTwoPointConicalGradient($this, focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix, flags) {
    let t$36812;
    if ($this == null) dart.nullFailed(I[231], 1252, 12, "#this");
    if (focal == null) dart.nullFailed(I[231], 1253, 17, "focal");
    if (focalRadius == null) dart.nullFailed(I[231], 1254, 12, "focalRadius");
    if (center == null) dart.nullFailed(I[231], 1255, 17, "center");
    if (radius == null) dart.nullFailed(I[231], 1256, 12, "radius");
    if (colors == null) dart.nullFailed(I[231], 1257, 16, "colors");
    if (colorStops == null) dart.nullFailed(I[231], 1258, 17, "colorStops");
    if (tileMode == null) dart.nullFailed(I[231], 1259, 16, "tileMode");
    if (flags == null) dart.nullFailed(I[231], 1261, 12, "flags");
    return js_util.callMethod(T$10.SkShader(), $this, "MakeTwoPointConicalGradient", [js_interop['Float32ListToJSFloat32Array|get#toJS'](focal), js_interop['DoubleToJSNumber|get#toJS'](focalRadius), js_interop['Float32ListToJSFloat32Array|get#toJS'](center), js_interop['DoubleToJSNumber|get#toJS'](radius), js_interop['Uint32ListToJSUint32Array|get#toJS'](colors), js_interop['Float32ListToJSFloat32Array|get#toJS'](colorStops), tileMode, (t$36812 = matrix, t$36812 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$36812)), js_interop['DoubleToJSNumber|get#toJS'](flags)]);
  };
  _engine['SkShaderNamespaceExtension|get#MakeTwoPointConicalGradient'] = function SkShaderNamespaceExtension$124get$35MakeTwoPointConicalGradient($this) {
    if ($this == null) dart.nullFailed(I[231], 1252, 12, "#this");
    return dart.fn((focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix, flags) => {
      if (focal == null) dart.nullFailed(I[231], 1253, 17, "focal");
      if (focalRadius == null) dart.nullFailed(I[231], 1254, 12, "focalRadius");
      if (center == null) dart.nullFailed(I[231], 1255, 17, "center");
      if (radius == null) dart.nullFailed(I[231], 1256, 12, "radius");
      if (colors == null) dart.nullFailed(I[231], 1257, 16, "colors");
      if (colorStops == null) dart.nullFailed(I[231], 1258, 17, "colorStops");
      if (tileMode == null) dart.nullFailed(I[231], 1259, 16, "tileMode");
      if (flags == null) dart.nullFailed(I[231], 1261, 12, "flags");
      return _engine['SkShaderNamespaceExtension|MakeTwoPointConicalGradient']($this, focal, focalRadius, center, radius, colors, colorStops, tileMode, matrix, flags);
    }, T$12.Float32ListAnddoubleAndFloat32List__ToSkShader());
  };
  _engine['SkShaderNamespaceExtension|MakeSweepGradient'] = function SkShaderNamespaceExtension$124MakeSweepGradient($this, cx, cy, colors, colorStops, tileMode, matrix, flags, startAngle, endAngle) {
    let t$36814;
    if ($this == null) dart.nullFailed(I[231], 1278, 12, "#this");
    if (cx == null) dart.nullFailed(I[231], 1279, 12, "cx");
    if (cy == null) dart.nullFailed(I[231], 1280, 12, "cy");
    if (colors == null) dart.nullFailed(I[231], 1281, 16, "colors");
    if (colorStops == null) dart.nullFailed(I[231], 1282, 17, "colorStops");
    if (tileMode == null) dart.nullFailed(I[231], 1283, 16, "tileMode");
    if (flags == null) dart.nullFailed(I[231], 1285, 12, "flags");
    if (startAngle == null) dart.nullFailed(I[231], 1286, 12, "startAngle");
    if (endAngle == null) dart.nullFailed(I[231], 1287, 12, "endAngle");
    return js_util.callMethod(T$10.SkShader(), $this, "MakeSweepGradient", [js_interop['DoubleToJSNumber|get#toJS'](cx), js_interop['DoubleToJSNumber|get#toJS'](cy), js_interop['Uint32ListToJSUint32Array|get#toJS'](colors), js_interop['Float32ListToJSFloat32Array|get#toJS'](colorStops), tileMode, (t$36814 = matrix, t$36814 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$36814)), js_interop['DoubleToJSNumber|get#toJS'](flags), js_interop['DoubleToJSNumber|get#toJS'](startAngle), js_interop['DoubleToJSNumber|get#toJS'](endAngle)]);
  };
  _engine['SkShaderNamespaceExtension|get#MakeSweepGradient'] = function SkShaderNamespaceExtension$124get$35MakeSweepGradient($this) {
    if ($this == null) dart.nullFailed(I[231], 1278, 12, "#this");
    return dart.fn((cx, cy, colors, colorStops, tileMode, matrix, flags, startAngle, endAngle) => {
      if (cx == null) dart.nullFailed(I[231], 1279, 12, "cx");
      if (cy == null) dart.nullFailed(I[231], 1280, 12, "cy");
      if (colors == null) dart.nullFailed(I[231], 1281, 16, "colors");
      if (colorStops == null) dart.nullFailed(I[231], 1282, 17, "colorStops");
      if (tileMode == null) dart.nullFailed(I[231], 1283, 16, "tileMode");
      if (flags == null) dart.nullFailed(I[231], 1285, 12, "flags");
      if (startAngle == null) dart.nullFailed(I[231], 1286, 12, "startAngle");
      if (endAngle == null) dart.nullFailed(I[231], 1287, 12, "endAngle");
      return _engine['SkShaderNamespaceExtension|MakeSweepGradient']($this, cx, cy, colors, colorStops, tileMode, matrix, flags, startAngle, endAngle);
    }, T$12.doubleAnddoubleAndUint32List__ToSkShader());
  };
  _engine['SkMaskFilterNamespaceExtension|MakeBlur'] = function SkMaskFilterNamespaceExtension$124MakeBlur($this, blurStyle, sigma, respectCTM) {
    if ($this == null) dart.nullFailed(I[231], 1313, 17, "#this");
    if (blurStyle == null) dart.nullFailed(I[231], 1314, 19, "blurStyle");
    if (sigma == null) dart.nullFailed(I[231], 1314, 37, "sigma");
    if (respectCTM == null) dart.nullFailed(I[231], 1314, 49, "respectCTM");
    return T$12.SkMaskFilterN()[_as]($this.MakeBlur(blurStyle, js_interop['DoubleToJSNumber|get#toJS'](sigma), js_interop['BoolToJSBoolean|get#toJS'](respectCTM)));
  };
  _engine['SkMaskFilterNamespaceExtension|get#MakeBlur'] = function SkMaskFilterNamespaceExtension$124get$35MakeBlur($this) {
    if ($this == null) dart.nullFailed(I[231], 1313, 17, "#this");
    return dart.fn((blurStyle, sigma, respectCTM) => {
      if (blurStyle == null) dart.nullFailed(I[231], 1314, 19, "blurStyle");
      if (sigma == null) dart.nullFailed(I[231], 1314, 37, "sigma");
      if (respectCTM == null) dart.nullFailed(I[231], 1314, 49, "respectCTM");
      return _engine['SkMaskFilterNamespaceExtension|MakeBlur']($this, blurStyle, sigma, respectCTM);
    }, T$12.SkBlurStyleAnddoubleAndboolToSkMaskFilterN());
  };
  _engine['SkPaintExtension|setStrokeWidth'] = function SkPaintExtension$124setStrokeWidth($this, width) {
    if ($this == null) dart.nullFailed(I[231], 1334, 10, "#this");
    if (width == null) dart.nullFailed(I[231], 1334, 32, "width");
    return $this.setStrokeWidth(js_interop['DoubleToJSNumber|get#toJS'](width));
  };
  _engine['SkPaintExtension|get#setStrokeWidth'] = function SkPaintExtension$124get$35setStrokeWidth($this) {
    if ($this == null) dart.nullFailed(I[231], 1334, 10, "#this");
    return dart.fn(width => {
      if (width == null) dart.nullFailed(I[231], 1334, 32, "width");
      return _engine['SkPaintExtension|setStrokeWidth']($this, width);
    }, T$9.doubleTovoid());
  };
  _engine['SkPaintExtension|get#setAntiAlias'] = function SkPaintExtension$124get$35setAntiAlias($this) {
    if ($this == null) dart.nullFailed(I[231], 1341, 8, "#this");
    return dart.fn(isAntiAlias => {
      if (isAntiAlias == null) dart.nullFailed(I[231], 1341, 26, "isAntiAlias");
      return _engine['SkPaintExtension|setAntiAlias']($this, isAntiAlias);
    }, T$1.boolTovoid());
  };
  _engine['SkPaintExtension|setAntiAlias'] = function SkPaintExtension$124setAntiAlias($this, isAntiAlias) {
    if ($this == null) dart.nullFailed(I[231], 1341, 8, "#this");
    if (isAntiAlias == null) dart.nullFailed(I[231], 1341, 26, "isAntiAlias");
    return $this.setAntiAlias(js_interop['BoolToJSBoolean|get#toJS'](isAntiAlias));
  };
  _engine['SkPaintExtension|setColorInt'] = function SkPaintExtension$124setColorInt($this, color) {
    if ($this == null) dart.nullFailed(I[231], 1345, 8, "#this");
    if (color == null) dart.nullFailed(I[231], 1345, 24, "color");
    return $this.setColorInt(js_interop['NumToJSExtension|get#toJS'](color));
  };
  _engine['SkPaintExtension|get#setColorInt'] = function SkPaintExtension$124get$35setColorInt($this) {
    if ($this == null) dart.nullFailed(I[231], 1345, 8, "#this");
    return dart.fn(color => {
      if (color == null) dart.nullFailed(I[231], 1345, 24, "color");
      return _engine['SkPaintExtension|setColorInt']($this, color);
    }, T$.intTovoid());
  };
  _engine['SkPaintExtension|setStrokeMiter'] = function SkPaintExtension$124setStrokeMiter($this, miterLimit) {
    if ($this == null) dart.nullFailed(I[231], 1353, 8, "#this");
    if (miterLimit == null) dart.nullFailed(I[231], 1353, 30, "miterLimit");
    return $this.setStrokeMiter(js_interop['DoubleToJSNumber|get#toJS'](miterLimit));
  };
  _engine['SkPaintExtension|get#setStrokeMiter'] = function SkPaintExtension$124get$35setStrokeMiter($this) {
    if ($this == null) dart.nullFailed(I[231], 1353, 8, "#this");
    return dart.fn(miterLimit => {
      if (miterLimit == null) dart.nullFailed(I[231], 1353, 30, "miterLimit");
      return _engine['SkPaintExtension|setStrokeMiter']($this, miterLimit);
    }, T$9.doubleTovoid());
  };
  _engine.toSkFilterOptions = function toSkFilterOptions(filterQuality) {
    if (filterQuality == null) dart.nullFailed(I[231], 1400, 52, "filterQuality");
    return dart.nullCheck(_engine._filterOptions[$_get](filterQuality));
  };
  _engine['SkColorFilterNamespaceExtension|MakeBlend'] = function SkColorFilterNamespaceExtension$124MakeBlend($this, color, blendMode) {
    if ($this == null) dart.nullFailed(I[231], 1421, 18, "#this");
    if (color == null) dart.nullFailed(I[231], 1421, 40, "color");
    if (blendMode == null) dart.nullFailed(I[231], 1421, 59, "blendMode");
    return T$13.SkColorFilterN()[_as]($this.MakeBlend(js_interop['Float32ListToJSFloat32Array|get#toJS'](color), blendMode));
  };
  _engine['SkColorFilterNamespaceExtension|get#MakeBlend'] = function SkColorFilterNamespaceExtension$124get$35MakeBlend($this) {
    if ($this == null) dart.nullFailed(I[231], 1421, 18, "#this");
    return dart.fn((color, blendMode) => {
      if (color == null) dart.nullFailed(I[231], 1421, 40, "color");
      if (blendMode == null) dart.nullFailed(I[231], 1421, 59, "blendMode");
      return _engine['SkColorFilterNamespaceExtension|MakeBlend']($this, color, blendMode);
    }, T$13.Float32ListAndSkBlendModeToSkColorFilterN());
  };
  _engine['SkColorFilterNamespaceExtension|MakeMatrix'] = function SkColorFilterNamespaceExtension$124MakeMatrix($this, matrix) {
    if ($this == null) dart.nullFailed(I[231], 1428, 17, "#this");
    if (matrix == null) dart.nullFailed(I[231], 1429, 17, "matrix");
    return T$9.SkColorFilter()[_as]($this.MakeMatrix(js_interop['Float32ListToJSFloat32Array|get#toJS'](matrix)));
  };
  _engine['SkColorFilterNamespaceExtension|get#MakeMatrix'] = function SkColorFilterNamespaceExtension$124get$35MakeMatrix($this) {
    if ($this == null) dart.nullFailed(I[231], 1428, 17, "#this");
    return dart.fn(matrix => {
      if (matrix == null) dart.nullFailed(I[231], 1429, 17, "matrix");
      return _engine['SkColorFilterNamespaceExtension|MakeMatrix']($this, matrix);
    }, T$13.Float32ListToSkColorFilter());
  };
  _engine['SkImageFilterNamespaceExtension|MakeBlur'] = function SkImageFilterNamespaceExtension$124MakeBlur($this, sigmaX, sigmaY, tileMode, input) {
    if ($this == null) dart.nullFailed(I[231], 1458, 17, "#this");
    if (sigmaX == null) dart.nullFailed(I[231], 1459, 12, "sigmaX");
    if (sigmaY == null) dart.nullFailed(I[231], 1460, 12, "sigmaY");
    if (tileMode == null) dart.nullFailed(I[231], 1461, 16, "tileMode");
    return js_util.callMethod(T$9.SkImageFilter(), $this, "MakeBlur", [js_interop['DoubleToJSNumber|get#toJS'](sigmaX), js_interop['DoubleToJSNumber|get#toJS'](sigmaY), tileMode, input]);
  };
  _engine['SkImageFilterNamespaceExtension|get#MakeBlur'] = function SkImageFilterNamespaceExtension$124get$35MakeBlur($this) {
    if ($this == null) dart.nullFailed(I[231], 1458, 17, "#this");
    return dart.fn((sigmaX, sigmaY, tileMode, input) => {
      if (sigmaX == null) dart.nullFailed(I[231], 1459, 12, "sigmaX");
      if (sigmaY == null) dart.nullFailed(I[231], 1460, 12, "sigmaY");
      if (tileMode == null) dart.nullFailed(I[231], 1461, 16, "tileMode");
      return _engine['SkImageFilterNamespaceExtension|MakeBlur']($this, sigmaX, sigmaY, tileMode, input);
    }, T$13.doubleAnddoubleAndSkTileMode__ToSkImageFilter());
  };
  _engine['SkImageFilterNamespaceExtension|MakeMatrixTransform'] = function SkImageFilterNamespaceExtension$124MakeMatrixTransform($this, matrix, filterOptions, input) {
    if ($this == null) dart.nullFailed(I[231], 1471, 17, "#this");
    if (matrix == null) dart.nullFailed(I[231], 1472, 17, "matrix");
    if (filterOptions == null) dart.nullFailed(I[231], 1473, 21, "filterOptions");
    return js_util.callMethod(T$9.SkImageFilter(), $this, "MakeMatrixTransform", [js_interop['Float32ListToJSFloat32Array|get#toJS'](matrix), filterOptions, input]);
  };
  _engine['SkImageFilterNamespaceExtension|get#MakeMatrixTransform'] = function SkImageFilterNamespaceExtension$124get$35MakeMatrixTransform($this) {
    if ($this == null) dart.nullFailed(I[231], 1471, 17, "#this");
    return dart.fn((matrix, filterOptions, input) => {
      if (matrix == null) dart.nullFailed(I[231], 1472, 17, "matrix");
      if (filterOptions == null) dart.nullFailed(I[231], 1473, 21, "filterOptions");
      return _engine['SkImageFilterNamespaceExtension|MakeMatrixTransform']($this, matrix, filterOptions, input);
    }, T$13.Float32ListAndCkFilterOptionsAndvoidToSkImageFilter());
  };
  _engine['SkImageFilterExtension|getOutputBounds'] = function SkImageFilterExtension$124getOutputBounds($this, bounds) {
    if ($this == null) dart.nullFailed(I[231], 1511, 13, "#this");
    if (bounds == null) dart.nullFailed(I[231], 1511, 41, "bounds");
    return js_interop['JSInt32ArrayToInt32List|get#toDart'](T$0.NativeInt32List()[_as]($this.getOutputBounds(js_interop['Float32ListToJSFloat32Array|get#toJS'](bounds))));
  };
  _engine['SkImageFilterExtension|get#getOutputBounds'] = function SkImageFilterExtension$124get$35getOutputBounds($this) {
    if ($this == null) dart.nullFailed(I[231], 1511, 13, "#this");
    return dart.fn(bounds => {
      if (bounds == null) dart.nullFailed(I[231], 1511, 41, "bounds");
      return _engine['SkImageFilterExtension|getOutputBounds']($this, bounds);
    }, T$13.Float32ListToInt32List());
  };
  _engine['SkPathNamespaceExtension|MakeFromCmds'] = function SkPathNamespaceExtension$124MakeFromCmds($this, pathCommands) {
    if ($this == null) dart.nullFailed(I[231], 1523, 10, "#this");
    if (pathCommands == null) dart.nullFailed(I[231], 1523, 37, "pathCommands");
    return T$10.SkPath()[_as]($this.MakeFromCmds(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](pathCommands)));
  };
  _engine['SkPathNamespaceExtension|get#MakeFromCmds'] = function SkPathNamespaceExtension$124get$35MakeFromCmds($this) {
    if ($this == null) dart.nullFailed(I[231], 1523, 10, "#this");
    return dart.fn(pathCommands => {
      if (pathCommands == null) dart.nullFailed(I[231], 1523, 37, "pathCommands");
      return _engine['SkPathNamespaceExtension|MakeFromCmds']($this, pathCommands);
    }, T$13.ListToSkPath());
  };
  _engine.toSkM44FromFloat32 = function toSkM44FromFloat32(matrix4) {
    if (matrix4 == null) dart.nullFailed(I[231], 1533, 44, "matrix4");
    let skM44 = _native_typed_data.NativeFloat32List.new(16);
    for (let r = 0; r < 4; r = r + 1) {
      for (let c = 0; c < 4; c = c + 1) {
        skM44[$_set](c * 4 + r, matrix4[$_get](r * 4 + c));
      }
    }
    return skM44;
  };
  _engine.toSkMatrixFromFloat32 = function toSkMatrixFromFloat32(matrix4) {
    if (matrix4 == null) dart.nullFailed(I[231], 1552, 47, "matrix4");
    let skMatrix = _native_typed_data.NativeFloat32List.new(9);
    for (let i = 0; i < 9; i = i + 1) {
      let matrix4Index = _engine._skMatrixIndexToMatrix4Index[$_get](i);
      if (dart.notNull(matrix4Index) < dart.notNull(matrix4[$length])) {
        skMatrix[$_set](i, matrix4[$_get](matrix4Index));
      } else {
        skMatrix[$_set](i, 0.0);
      }
    }
    return skMatrix;
  };
  _engine.toSkMatrixFromFloat64 = function toSkMatrixFromFloat64(matrix4) {
    if (matrix4 == null) dart.nullFailed(I[231], 1567, 47, "matrix4");
    let skMatrix = _native_typed_data.NativeFloat32List.new(9);
    for (let i = 0; i < 9; i = i + 1) {
      let matrix4Index = _engine._skMatrixIndexToMatrix4Index[$_get](i);
      if (dart.notNull(matrix4Index) < dart.notNull(matrix4[$length])) {
        skMatrix[$_set](i, matrix4[$_get](matrix4Index));
      } else {
        skMatrix[$_set](i, 0.0);
      }
    }
    return skMatrix;
  };
  _engine.toSkPoint = function toSkPoint(offset) {
    if (offset == null) dart.nullFailed(I[231], 1583, 33, "offset");
    let point = _native_typed_data.NativeFloat32List.new(2);
    point[$_set](0, offset.dx);
    point[$_set](1, offset.dy);
    return point;
  };
  _engine.toSkColorStops = function toSkColorStops(colorStops) {
    if (colorStops == null) {
      return _engine._kDefaultSkColorStops;
    }
    let len = colorStops[$length];
    let skColorStops = _native_typed_data.NativeFloat32List.new(len);
    for (let i = 0; i < dart.notNull(len); i = i + 1) {
      skColorStops[$_set](i, colorStops[$_get](i));
    }
    return skColorStops;
  };
  _engine.mallocFloat32List = function mallocFloat32List(length) {
    if (length == null) dart.nullFailed(I[231], 1628, 37, "length");
    return T$10.SkFloat32List()[_as](dart.jsInteropNullCheck(dart.global.window.flutterCanvasKit.Malloc(dart.jsInteropNullCheck(dart.global.Float32Array), js_interop['NumToJSExtension|get#toJS'](length))));
  };
  _engine.mallocUint32List = function mallocUint32List(length) {
    if (length == null) dart.nullFailed(I[231], 1636, 35, "length");
    return T$13.SkUint32List()[_as](dart.jsInteropNullCheck(dart.global.window.flutterCanvasKit.Malloc(dart.jsInteropNullCheck(dart.global.Uint32Array), js_interop['NumToJSExtension|get#toJS'](length))));
  };
  _engine['SkFloat32ListExtension|get#length'] = function SkFloat32ListExtension$124get$35length($this) {
    if ($this == null) dart.nullFailed(I[231], 1665, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "length"));
  };
  _engine['SkFloat32ListExtension|set#length'] = function SkFloat32ListExtension$124set$35length($this, l) {
    let t$36839;
    if ($this == null) dart.nullFailed(I[231], 1669, 7, "#this");
    if (l == null) dart.nullFailed(I[231], 1669, 21, "l");
    t$36839 = js_interop['DoubleToJSNumber|get#toJS'](l);
    $this.length = t$36839;
    return t$36839;
  };
  _engine['SkFloat32ListExtension|toTypedArray'] = function SkFloat32ListExtension$124toTypedArray($this) {
    if ($this == null) dart.nullFailed(I[231], 1680, 15, "#this");
    return js_interop['JSFloat32ArrayToFloat32List|get#toDart'](T$0.NativeFloat32List()[_as]($this.toTypedArray()));
  };
  _engine['SkFloat32ListExtension|get#toTypedArray'] = function SkFloat32ListExtension$124get$35toTypedArray($this) {
    if ($this == null) dart.nullFailed(I[231], 1680, 15, "#this");
    return dart.fn(() => _engine['SkFloat32ListExtension|toTypedArray']($this), T$0.VoidToFloat32List());
  };
  _engine['SkUint32ListExtension|get#length'] = function SkUint32ListExtension$124get$35length($this) {
    if ($this == null) dart.nullFailed(I[231], 1696, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "length"));
  };
  _engine['SkUint32ListExtension|set#length'] = function SkUint32ListExtension$124set$35length($this, l) {
    let t$36843;
    if ($this == null) dart.nullFailed(I[231], 1700, 7, "#this");
    if (l == null) dart.nullFailed(I[231], 1700, 21, "l");
    t$36843 = js_interop['DoubleToJSNumber|get#toJS'](l);
    $this.length = t$36843;
    return t$36843;
  };
  _engine['SkUint32ListExtension|toTypedArray'] = function SkUint32ListExtension$124toTypedArray($this) {
    if ($this == null) dart.nullFailed(I[231], 1711, 14, "#this");
    return js_interop['JSUint32ArrayToUint32List|get#toDart'](T$3.NativeUint32List()[_as]($this.toTypedArray()));
  };
  _engine['SkUint32ListExtension|get#toTypedArray'] = function SkUint32ListExtension$124get$35toTypedArray($this) {
    if ($this == null) dart.nullFailed(I[231], 1711, 14, "#this");
    return dart.fn(() => _engine['SkUint32ListExtension|toTypedArray']($this), T$0.VoidToUint32List());
  };
  _engine._populateSkColor = function _populateSkColor(skColor, color) {
    if (skColor == null) dart.nullFailed(I[231], 1715, 44, "skColor");
    if (color == null) dart.nullFailed(I[231], 1715, 62, "color");
    let array = _engine['SkFloat32ListExtension|toTypedArray'](skColor);
    array[$_set](0, dart.notNull(color.red) / 255.0);
    array[$_set](1, dart.notNull(color.green) / 255.0);
    array[$_set](2, dart.notNull(color.blue) / 255.0);
    array[$_set](3, dart.notNull(color.alpha) / 255.0);
    return array;
  };
  _engine.toSharedSkColor1 = function toSharedSkColor1(color) {
    if (color == null) dart.nullFailed(I[231], 1729, 39, "color");
    return _engine._populateSkColor(_engine._sharedSkColor1, color);
  };
  _engine.toSharedSkColor2 = function toSharedSkColor2(color) {
    if (color == null) dart.nullFailed(I[231], 1740, 39, "color");
    return _engine._populateSkColor(_engine._sharedSkColor2, color);
  };
  _engine.toSharedSkColor3 = function toSharedSkColor3(color) {
    if (color == null) dart.nullFailed(I[231], 1751, 39, "color");
    return _engine._populateSkColor(_engine._sharedSkColor3, color);
  };
  _engine['SkPathExtension|addArc'] = function SkPathExtension$124addArc($this, oval, startAngleDegrees, sweepAngleDegrees) {
    if ($this == null) dart.nullFailed(I[231], 1773, 8, "#this");
    if (oval == null) dart.nullFailed(I[231], 1774, 17, "oval");
    if (startAngleDegrees == null) dart.nullFailed(I[231], 1775, 12, "startAngleDegrees");
    if (sweepAngleDegrees == null) dart.nullFailed(I[231], 1776, 12, "sweepAngleDegrees");
    return $this.addArc(js_interop['Float32ListToJSFloat32Array|get#toJS'](oval), js_interop['DoubleToJSNumber|get#toJS'](startAngleDegrees), js_interop['DoubleToJSNumber|get#toJS'](sweepAngleDegrees));
  };
  _engine['SkPathExtension|get#addArc'] = function SkPathExtension$124get$35addArc($this) {
    if ($this == null) dart.nullFailed(I[231], 1773, 8, "#this");
    return dart.fn((oval, startAngleDegrees, sweepAngleDegrees) => {
      if (oval == null) dart.nullFailed(I[231], 1774, 17, "oval");
      if (startAngleDegrees == null) dart.nullFailed(I[231], 1775, 12, "startAngleDegrees");
      if (sweepAngleDegrees == null) dart.nullFailed(I[231], 1776, 12, "sweepAngleDegrees");
      return _engine['SkPathExtension|addArc']($this, oval, startAngleDegrees, sweepAngleDegrees);
    }, T$13.Float32ListAnddoubleAnddoubleTovoid());
  };
  _engine['SkPathExtension|addOval'] = function SkPathExtension$124addOval($this, oval, counterClockWise, startIndex) {
    if ($this == null) dart.nullFailed(I[231], 1785, 8, "#this");
    if (oval == null) dart.nullFailed(I[231], 1786, 17, "oval");
    if (counterClockWise == null) dart.nullFailed(I[231], 1787, 10, "counterClockWise");
    if (startIndex == null) dart.nullFailed(I[231], 1788, 12, "startIndex");
    return $this.addOval(js_interop['Float32ListToJSFloat32Array|get#toJS'](oval), js_interop['BoolToJSBoolean|get#toJS'](counterClockWise), js_interop['DoubleToJSNumber|get#toJS'](startIndex));
  };
  _engine['SkPathExtension|get#addOval'] = function SkPathExtension$124get$35addOval($this) {
    if ($this == null) dart.nullFailed(I[231], 1785, 8, "#this");
    return dart.fn((oval, counterClockWise, startIndex) => {
      if (oval == null) dart.nullFailed(I[231], 1786, 17, "oval");
      if (counterClockWise == null) dart.nullFailed(I[231], 1787, 10, "counterClockWise");
      if (startIndex == null) dart.nullFailed(I[231], 1788, 12, "startIndex");
      return _engine['SkPathExtension|addOval']($this, oval, counterClockWise, startIndex);
    }, T$13.Float32ListAndboolAnddoubleTovoid());
  };
  _engine['SkPathExtension|addPath'] = function SkPathExtension$124addPath($this, other, scaleX, skewX, transX, skewY, scaleY, transY, pers0, pers1, pers2, extendPath) {
    if ($this == null) dart.nullFailed(I[231], 1805, 8, "#this");
    if (other == null) dart.nullFailed(I[231], 1806, 12, "other");
    if (scaleX == null) dart.nullFailed(I[231], 1807, 12, "scaleX");
    if (skewX == null) dart.nullFailed(I[231], 1808, 12, "skewX");
    if (transX == null) dart.nullFailed(I[231], 1809, 12, "transX");
    if (skewY == null) dart.nullFailed(I[231], 1810, 12, "skewY");
    if (scaleY == null) dart.nullFailed(I[231], 1811, 12, "scaleY");
    if (transY == null) dart.nullFailed(I[231], 1812, 12, "transY");
    if (pers0 == null) dart.nullFailed(I[231], 1813, 12, "pers0");
    if (pers1 == null) dart.nullFailed(I[231], 1814, 12, "pers1");
    if (pers2 == null) dart.nullFailed(I[231], 1815, 12, "pers2");
    if (extendPath == null) dart.nullFailed(I[231], 1816, 10, "extendPath");
    return js_util.callMethod(T$.void(), $this, "addPath", [other, js_interop['DoubleToJSNumber|get#toJS'](scaleX), js_interop['DoubleToJSNumber|get#toJS'](skewX), js_interop['DoubleToJSNumber|get#toJS'](transX), js_interop['DoubleToJSNumber|get#toJS'](skewY), js_interop['DoubleToJSNumber|get#toJS'](scaleY), js_interop['DoubleToJSNumber|get#toJS'](transY), js_interop['DoubleToJSNumber|get#toJS'](pers0), js_interop['DoubleToJSNumber|get#toJS'](pers1), js_interop['DoubleToJSNumber|get#toJS'](pers2), js_interop['BoolToJSBoolean|get#toJS'](extendPath)]);
  };
  _engine['SkPathExtension|get#addPath'] = function SkPathExtension$124get$35addPath($this) {
    if ($this == null) dart.nullFailed(I[231], 1805, 8, "#this");
    return dart.fn((other, scaleX, skewX, transX, skewY, scaleY, transY, pers0, pers1, pers2, extendPath) => {
      if (other == null) dart.nullFailed(I[231], 1806, 12, "other");
      if (scaleX == null) dart.nullFailed(I[231], 1807, 12, "scaleX");
      if (skewX == null) dart.nullFailed(I[231], 1808, 12, "skewX");
      if (transX == null) dart.nullFailed(I[231], 1809, 12, "transX");
      if (skewY == null) dart.nullFailed(I[231], 1810, 12, "skewY");
      if (scaleY == null) dart.nullFailed(I[231], 1811, 12, "scaleY");
      if (transY == null) dart.nullFailed(I[231], 1812, 12, "transY");
      if (pers0 == null) dart.nullFailed(I[231], 1813, 12, "pers0");
      if (pers1 == null) dart.nullFailed(I[231], 1814, 12, "pers1");
      if (pers2 == null) dart.nullFailed(I[231], 1815, 12, "pers2");
      if (extendPath == null) dart.nullFailed(I[231], 1816, 10, "extendPath");
      return _engine['SkPathExtension|addPath']($this, other, scaleX, skewX, transX, skewY, scaleY, transY, pers0, pers1, pers2, extendPath);
    }, T$13.SkPathAnddoubleAnddouble__Tovoid());
  };
  _engine['SkPathExtension|addPoly'] = function SkPathExtension$124addPoly($this, points, close) {
    if ($this == null) dart.nullFailed(I[231], 1826, 8, "#this");
    if (points == null) dart.nullFailed(I[231], 1827, 17, "points");
    if (close == null) dart.nullFailed(I[231], 1828, 10, "close");
    return $this.addPoly(js_interop['Float32ListToJSFloat32Array|get#toJS'](points), js_interop['BoolToJSBoolean|get#toJS'](close));
  };
  _engine['SkPathExtension|get#addPoly'] = function SkPathExtension$124get$35addPoly($this) {
    if ($this == null) dart.nullFailed(I[231], 1826, 8, "#this");
    return dart.fn((points, close) => {
      if (points == null) dart.nullFailed(I[231], 1827, 17, "points");
      if (close == null) dart.nullFailed(I[231], 1828, 10, "close");
      return _engine['SkPathExtension|addPoly']($this, points, close);
    }, T$13.Float32ListAndboolTovoid());
  };
  _engine['SkPathExtension|addRRect'] = function SkPathExtension$124addRRect($this, rrect, counterClockWise) {
    if ($this == null) dart.nullFailed(I[231], 1836, 8, "#this");
    if (rrect == null) dart.nullFailed(I[231], 1837, 17, "rrect");
    if (counterClockWise == null) dart.nullFailed(I[231], 1838, 10, "counterClockWise");
    return $this.addRRect(js_interop['Float32ListToJSFloat32Array|get#toJS'](rrect), js_interop['BoolToJSBoolean|get#toJS'](counterClockWise));
  };
  _engine['SkPathExtension|get#addRRect'] = function SkPathExtension$124get$35addRRect($this) {
    if ($this == null) dart.nullFailed(I[231], 1836, 8, "#this");
    return dart.fn((rrect, counterClockWise) => {
      if (rrect == null) dart.nullFailed(I[231], 1837, 17, "rrect");
      if (counterClockWise == null) dart.nullFailed(I[231], 1838, 10, "counterClockWise");
      return _engine['SkPathExtension|addRRect']($this, rrect, counterClockWise);
    }, T$13.Float32ListAndboolTovoid());
  };
  _engine['SkPathExtension|addRect'] = function SkPathExtension$124addRect($this, rect) {
    if ($this == null) dart.nullFailed(I[231], 1845, 8, "#this");
    if (rect == null) dart.nullFailed(I[231], 1846, 17, "rect");
    return $this.addRect(js_interop['Float32ListToJSFloat32Array|get#toJS'](rect));
  };
  _engine['SkPathExtension|get#addRect'] = function SkPathExtension$124get$35addRect($this) {
    if ($this == null) dart.nullFailed(I[231], 1845, 8, "#this");
    return dart.fn(rect => {
      if (rect == null) dart.nullFailed(I[231], 1846, 17, "rect");
      return _engine['SkPathExtension|addRect']($this, rect);
    }, T$7.Float32ListTovoid());
  };
  _engine['SkPathExtension|arcToOval'] = function SkPathExtension$124arcToOval($this, oval, startAngleDegrees, sweepAngleDegrees, forceMoveTo) {
    if ($this == null) dart.nullFailed(I[231], 1856, 8, "#this");
    if (oval == null) dart.nullFailed(I[231], 1857, 17, "oval");
    if (startAngleDegrees == null) dart.nullFailed(I[231], 1858, 12, "startAngleDegrees");
    if (sweepAngleDegrees == null) dart.nullFailed(I[231], 1859, 12, "sweepAngleDegrees");
    if (forceMoveTo == null) dart.nullFailed(I[231], 1860, 10, "forceMoveTo");
    return $this.arcToOval(js_interop['Float32ListToJSFloat32Array|get#toJS'](oval), js_interop['DoubleToJSNumber|get#toJS'](startAngleDegrees), js_interop['DoubleToJSNumber|get#toJS'](sweepAngleDegrees), js_interop['BoolToJSBoolean|get#toJS'](forceMoveTo));
  };
  _engine['SkPathExtension|get#arcToOval'] = function SkPathExtension$124get$35arcToOval($this) {
    if ($this == null) dart.nullFailed(I[231], 1856, 8, "#this");
    return dart.fn((oval, startAngleDegrees, sweepAngleDegrees, forceMoveTo) => {
      if (oval == null) dart.nullFailed(I[231], 1857, 17, "oval");
      if (startAngleDegrees == null) dart.nullFailed(I[231], 1858, 12, "startAngleDegrees");
      if (sweepAngleDegrees == null) dart.nullFailed(I[231], 1859, 12, "sweepAngleDegrees");
      if (forceMoveTo == null) dart.nullFailed(I[231], 1860, 10, "forceMoveTo");
      return _engine['SkPathExtension|arcToOval']($this, oval, startAngleDegrees, sweepAngleDegrees, forceMoveTo);
    }, T$13.Float32ListAnddoubleAnddouble__Tovoid());
  };
  _engine['SkPathExtension|arcToRotated'] = function SkPathExtension$124arcToRotated($this, radiusX, radiusY, rotation, useSmallArc, counterClockWise, x, y) {
    if ($this == null) dart.nullFailed(I[231], 1874, 8, "#this");
    if (radiusX == null) dart.nullFailed(I[231], 1875, 12, "radiusX");
    if (radiusY == null) dart.nullFailed(I[231], 1876, 12, "radiusY");
    if (rotation == null) dart.nullFailed(I[231], 1877, 12, "rotation");
    if (useSmallArc == null) dart.nullFailed(I[231], 1878, 10, "useSmallArc");
    if (counterClockWise == null) dart.nullFailed(I[231], 1879, 10, "counterClockWise");
    if (x == null) dart.nullFailed(I[231], 1880, 12, "x");
    if (y == null) dart.nullFailed(I[231], 1881, 12, "y");
    return js_util.callMethod(T$.void(), $this, "arcToRotated", [js_interop['DoubleToJSNumber|get#toJS'](radiusX), js_interop['DoubleToJSNumber|get#toJS'](radiusY), js_interop['DoubleToJSNumber|get#toJS'](rotation), js_interop['BoolToJSBoolean|get#toJS'](useSmallArc), js_interop['BoolToJSBoolean|get#toJS'](counterClockWise), js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y)]);
  };
  _engine['SkPathExtension|get#arcToRotated'] = function SkPathExtension$124get$35arcToRotated($this) {
    if ($this == null) dart.nullFailed(I[231], 1874, 8, "#this");
    return dart.fn((radiusX, radiusY, rotation, useSmallArc, counterClockWise, x, y) => {
      if (radiusX == null) dart.nullFailed(I[231], 1875, 12, "radiusX");
      if (radiusY == null) dart.nullFailed(I[231], 1876, 12, "radiusY");
      if (rotation == null) dart.nullFailed(I[231], 1877, 12, "rotation");
      if (useSmallArc == null) dart.nullFailed(I[231], 1878, 10, "useSmallArc");
      if (counterClockWise == null) dart.nullFailed(I[231], 1879, 10, "counterClockWise");
      if (x == null) dart.nullFailed(I[231], 1880, 12, "x");
      if (y == null) dart.nullFailed(I[231], 1881, 12, "y");
      return _engine['SkPathExtension|arcToRotated']($this, radiusX, radiusY, rotation, useSmallArc, counterClockWise, x, y);
    }, T$13.doubleAnddoubleAnddouble__Tovoid$10());
  };
  _engine['SkPathExtension|get#conicTo'] = function SkPathExtension$124get$35conicTo($this) {
    if ($this == null) dart.nullFailed(I[231], 1896, 8, "#this");
    return dart.fn((x1, y1, x2, y2, w) => {
      if (x1 == null) dart.nullFailed(I[231], 1897, 12, "x1");
      if (y1 == null) dart.nullFailed(I[231], 1898, 12, "y1");
      if (x2 == null) dart.nullFailed(I[231], 1899, 12, "x2");
      if (y2 == null) dart.nullFailed(I[231], 1900, 12, "y2");
      if (w == null) dart.nullFailed(I[231], 1901, 12, "w");
      return _engine['SkPathExtension|conicTo']($this, x1, y1, x2, y2, w);
    }, T$10.doubleAnddoubleAnddouble__Tovoid$1());
  };
  _engine['SkPathExtension|conicTo'] = function SkPathExtension$124conicTo($this, x1, y1, x2, y2, w) {
    if ($this == null) dart.nullFailed(I[231], 1896, 8, "#this");
    if (x1 == null) dart.nullFailed(I[231], 1897, 12, "x1");
    if (y1 == null) dart.nullFailed(I[231], 1898, 12, "y1");
    if (x2 == null) dart.nullFailed(I[231], 1899, 12, "x2");
    if (y2 == null) dart.nullFailed(I[231], 1900, 12, "y2");
    if (w == null) dart.nullFailed(I[231], 1901, 12, "w");
    return js_util.callMethod(T$.void(), $this, "conicTo", [js_interop['DoubleToJSNumber|get#toJS'](x1), js_interop['DoubleToJSNumber|get#toJS'](y1), js_interop['DoubleToJSNumber|get#toJS'](x2), js_interop['DoubleToJSNumber|get#toJS'](y2), js_interop['DoubleToJSNumber|get#toJS'](w)]);
  };
  _engine['SkPathExtension|contains'] = function SkPathExtension$124contains($this, x, y) {
    if ($this == null) dart.nullFailed(I[231], 1909, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 1910, 12, "x");
    if (y == null) dart.nullFailed(I[231], 1911, 12, "y");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.contains(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y))));
  };
  _engine['SkPathExtension|get#contains'] = function SkPathExtension$124get$35contains($this) {
    if ($this == null) dart.nullFailed(I[231], 1909, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 1910, 12, "x");
      if (y == null) dart.nullFailed(I[231], 1911, 12, "y");
      return _engine['SkPathExtension|contains']($this, x, y);
    }, T$11.doubleAnddoubleTobool());
  };
  _engine['SkPathExtension|cubicTo'] = function SkPathExtension$124cubicTo($this, x1, y1, x2, y2, x3, y3) {
    if ($this == null) dart.nullFailed(I[231], 1923, 8, "#this");
    if (x1 == null) dart.nullFailed(I[231], 1924, 12, "x1");
    if (y1 == null) dart.nullFailed(I[231], 1925, 12, "y1");
    if (x2 == null) dart.nullFailed(I[231], 1926, 12, "x2");
    if (y2 == null) dart.nullFailed(I[231], 1927, 12, "y2");
    if (x3 == null) dart.nullFailed(I[231], 1928, 12, "x3");
    if (y3 == null) dart.nullFailed(I[231], 1929, 12, "y3");
    return js_util.callMethod(T$.void(), $this, "cubicTo", [js_interop['DoubleToJSNumber|get#toJS'](x1), js_interop['DoubleToJSNumber|get#toJS'](y1), js_interop['DoubleToJSNumber|get#toJS'](x2), js_interop['DoubleToJSNumber|get#toJS'](y2), js_interop['DoubleToJSNumber|get#toJS'](x3), js_interop['DoubleToJSNumber|get#toJS'](y3)]);
  };
  _engine['SkPathExtension|get#cubicTo'] = function SkPathExtension$124get$35cubicTo($this) {
    if ($this == null) dart.nullFailed(I[231], 1923, 8, "#this");
    return dart.fn((x1, y1, x2, y2, x3, y3) => {
      if (x1 == null) dart.nullFailed(I[231], 1924, 12, "x1");
      if (y1 == null) dart.nullFailed(I[231], 1925, 12, "y1");
      if (x2 == null) dart.nullFailed(I[231], 1926, 12, "x2");
      if (y2 == null) dart.nullFailed(I[231], 1927, 12, "y2");
      if (x3 == null) dart.nullFailed(I[231], 1928, 12, "x3");
      if (y3 == null) dart.nullFailed(I[231], 1929, 12, "y3");
      return _engine['SkPathExtension|cubicTo']($this, x1, y1, x2, y2, x3, y3);
    }, T$10.doubleAnddoubleAnddouble__Tovoid$2());
  };
  _engine['SkPathExtension|getBounds'] = function SkPathExtension$124getBounds($this) {
    if ($this == null) dart.nullFailed(I[231], 1934, 15, "#this");
    return js_interop['JSFloat32ArrayToFloat32List|get#toDart'](T$0.NativeFloat32List()[_as]($this.getBounds()));
  };
  _engine['SkPathExtension|get#getBounds'] = function SkPathExtension$124get$35getBounds($this) {
    if ($this == null) dart.nullFailed(I[231], 1934, 15, "#this");
    return dart.fn(() => _engine['SkPathExtension|getBounds']($this), T$0.VoidToFloat32List());
  };
  _engine['SkPathExtension|lineTo'] = function SkPathExtension$124lineTo($this, x, y) {
    if ($this == null) dart.nullFailed(I[231], 1938, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 1938, 22, "x");
    if (y == null) dart.nullFailed(I[231], 1938, 32, "y");
    return $this.lineTo(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y));
  };
  _engine['SkPathExtension|get#lineTo'] = function SkPathExtension$124get$35lineTo($this) {
    if ($this == null) dart.nullFailed(I[231], 1938, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 1938, 22, "x");
      if (y == null) dart.nullFailed(I[231], 1938, 32, "y");
      return _engine['SkPathExtension|lineTo']($this, x, y);
    }, T$9.doubleAnddoubleTovoid());
  };
  _engine['SkPathExtension|moveTo'] = function SkPathExtension$124moveTo($this, x, y) {
    if ($this == null) dart.nullFailed(I[231], 1942, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 1942, 22, "x");
    if (y == null) dart.nullFailed(I[231], 1942, 32, "y");
    return $this.moveTo(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y));
  };
  _engine['SkPathExtension|get#moveTo'] = function SkPathExtension$124get$35moveTo($this) {
    if ($this == null) dart.nullFailed(I[231], 1942, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 1942, 22, "x");
      if (y == null) dart.nullFailed(I[231], 1942, 32, "y");
      return _engine['SkPathExtension|moveTo']($this, x, y);
    }, T$9.doubleAnddoubleTovoid());
  };
  _engine['SkPathExtension|quadTo'] = function SkPathExtension$124quadTo($this, x1, y1, x2, y2) {
    if ($this == null) dart.nullFailed(I[231], 1951, 8, "#this");
    if (x1 == null) dart.nullFailed(I[231], 1952, 12, "x1");
    if (y1 == null) dart.nullFailed(I[231], 1953, 12, "y1");
    if (x2 == null) dart.nullFailed(I[231], 1954, 12, "x2");
    if (y2 == null) dart.nullFailed(I[231], 1955, 12, "y2");
    return $this.quadTo(js_interop['DoubleToJSNumber|get#toJS'](x1), js_interop['DoubleToJSNumber|get#toJS'](y1), js_interop['DoubleToJSNumber|get#toJS'](x2), js_interop['DoubleToJSNumber|get#toJS'](y2));
  };
  _engine['SkPathExtension|get#quadTo'] = function SkPathExtension$124get$35quadTo($this) {
    if ($this == null) dart.nullFailed(I[231], 1951, 8, "#this");
    return dart.fn((x1, y1, x2, y2) => {
      if (x1 == null) dart.nullFailed(I[231], 1952, 12, "x1");
      if (y1 == null) dart.nullFailed(I[231], 1953, 12, "y1");
      if (x2 == null) dart.nullFailed(I[231], 1954, 12, "x2");
      if (y2 == null) dart.nullFailed(I[231], 1955, 12, "y2");
      return _engine['SkPathExtension|quadTo']($this, x1, y1, x2, y2);
    }, T$10.doubleAnddoubleAnddouble__Tovoid$3());
  };
  _engine['SkPathExtension|get#rArcTo'] = function SkPathExtension$124get$35rArcTo($this) {
    if ($this == null) dart.nullFailed(I[231], 1968, 8, "#this");
    return dart.fn((x, y, rotation, useSmallArc, counterClockWise, deltaX, deltaY) => {
      if (x == null) dart.nullFailed(I[231], 1969, 12, "x");
      if (y == null) dart.nullFailed(I[231], 1970, 12, "y");
      if (rotation == null) dart.nullFailed(I[231], 1971, 12, "rotation");
      if (useSmallArc == null) dart.nullFailed(I[231], 1972, 10, "useSmallArc");
      if (counterClockWise == null) dart.nullFailed(I[231], 1973, 10, "counterClockWise");
      if (deltaX == null) dart.nullFailed(I[231], 1974, 12, "deltaX");
      if (deltaY == null) dart.nullFailed(I[231], 1975, 12, "deltaY");
      return _engine['SkPathExtension|rArcTo']($this, x, y, rotation, useSmallArc, counterClockWise, deltaX, deltaY);
    }, T$13.doubleAnddoubleAnddouble__Tovoid$10());
  };
  _engine['SkPathExtension|rArcTo'] = function SkPathExtension$124rArcTo($this, x, y, rotation, useSmallArc, counterClockWise, deltaX, deltaY) {
    if ($this == null) dart.nullFailed(I[231], 1968, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 1969, 12, "x");
    if (y == null) dart.nullFailed(I[231], 1970, 12, "y");
    if (rotation == null) dart.nullFailed(I[231], 1971, 12, "rotation");
    if (useSmallArc == null) dart.nullFailed(I[231], 1972, 10, "useSmallArc");
    if (counterClockWise == null) dart.nullFailed(I[231], 1973, 10, "counterClockWise");
    if (deltaX == null) dart.nullFailed(I[231], 1974, 12, "deltaX");
    if (deltaY == null) dart.nullFailed(I[231], 1975, 12, "deltaY");
    return js_util.callMethod(T$.void(), $this, "rArcTo", [js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y), js_interop['DoubleToJSNumber|get#toJS'](rotation), js_interop['BoolToJSBoolean|get#toJS'](useSmallArc), js_interop['BoolToJSBoolean|get#toJS'](counterClockWise), js_interop['DoubleToJSNumber|get#toJS'](deltaX), js_interop['DoubleToJSNumber|get#toJS'](deltaY)]);
  };
  _engine['SkPathExtension|rConicTo'] = function SkPathExtension$124rConicTo($this, x1, y1, x2, y2, w) {
    if ($this == null) dart.nullFailed(I[231], 1987, 8, "#this");
    if (x1 == null) dart.nullFailed(I[231], 1988, 12, "x1");
    if (y1 == null) dart.nullFailed(I[231], 1989, 12, "y1");
    if (x2 == null) dart.nullFailed(I[231], 1990, 12, "x2");
    if (y2 == null) dart.nullFailed(I[231], 1991, 12, "y2");
    if (w == null) dart.nullFailed(I[231], 1992, 12, "w");
    return js_util.callMethod(T$.void(), $this, "rConicTo", [js_interop['DoubleToJSNumber|get#toJS'](x1), js_interop['DoubleToJSNumber|get#toJS'](y1), js_interop['DoubleToJSNumber|get#toJS'](x2), js_interop['DoubleToJSNumber|get#toJS'](y2), js_interop['DoubleToJSNumber|get#toJS'](w)]);
  };
  _engine['SkPathExtension|get#rConicTo'] = function SkPathExtension$124get$35rConicTo($this) {
    if ($this == null) dart.nullFailed(I[231], 1987, 8, "#this");
    return dart.fn((x1, y1, x2, y2, w) => {
      if (x1 == null) dart.nullFailed(I[231], 1988, 12, "x1");
      if (y1 == null) dart.nullFailed(I[231], 1989, 12, "y1");
      if (x2 == null) dart.nullFailed(I[231], 1990, 12, "x2");
      if (y2 == null) dart.nullFailed(I[231], 1991, 12, "y2");
      if (w == null) dart.nullFailed(I[231], 1992, 12, "w");
      return _engine['SkPathExtension|rConicTo']($this, x1, y1, x2, y2, w);
    }, T$10.doubleAnddoubleAnddouble__Tovoid$1());
  };
  _engine['SkPathExtension|rCubicTo'] = function SkPathExtension$124rCubicTo($this, x1, y1, x2, y2, x3, y3) {
    if ($this == null) dart.nullFailed(I[231], 2004, 8, "#this");
    if (x1 == null) dart.nullFailed(I[231], 2005, 12, "x1");
    if (y1 == null) dart.nullFailed(I[231], 2006, 12, "y1");
    if (x2 == null) dart.nullFailed(I[231], 2007, 12, "x2");
    if (y2 == null) dart.nullFailed(I[231], 2008, 12, "y2");
    if (x3 == null) dart.nullFailed(I[231], 2009, 12, "x3");
    if (y3 == null) dart.nullFailed(I[231], 2010, 12, "y3");
    return js_util.callMethod(T$.void(), $this, "rCubicTo", [js_interop['DoubleToJSNumber|get#toJS'](x1), js_interop['DoubleToJSNumber|get#toJS'](y1), js_interop['DoubleToJSNumber|get#toJS'](x2), js_interop['DoubleToJSNumber|get#toJS'](y2), js_interop['DoubleToJSNumber|get#toJS'](x3), js_interop['DoubleToJSNumber|get#toJS'](y3)]);
  };
  _engine['SkPathExtension|get#rCubicTo'] = function SkPathExtension$124get$35rCubicTo($this) {
    if ($this == null) dart.nullFailed(I[231], 2004, 8, "#this");
    return dart.fn((x1, y1, x2, y2, x3, y3) => {
      if (x1 == null) dart.nullFailed(I[231], 2005, 12, "x1");
      if (y1 == null) dart.nullFailed(I[231], 2006, 12, "y1");
      if (x2 == null) dart.nullFailed(I[231], 2007, 12, "x2");
      if (y2 == null) dart.nullFailed(I[231], 2008, 12, "y2");
      if (x3 == null) dart.nullFailed(I[231], 2009, 12, "x3");
      if (y3 == null) dart.nullFailed(I[231], 2010, 12, "y3");
      return _engine['SkPathExtension|rCubicTo']($this, x1, y1, x2, y2, x3, y3);
    }, T$10.doubleAnddoubleAnddouble__Tovoid$2());
  };
  _engine['SkPathExtension|rLineTo'] = function SkPathExtension$124rLineTo($this, x, y) {
    if ($this == null) dart.nullFailed(I[231], 2015, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 2015, 23, "x");
    if (y == null) dart.nullFailed(I[231], 2015, 33, "y");
    return $this.rLineTo(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y));
  };
  _engine['SkPathExtension|get#rLineTo'] = function SkPathExtension$124get$35rLineTo($this) {
    if ($this == null) dart.nullFailed(I[231], 2015, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 2015, 23, "x");
      if (y == null) dart.nullFailed(I[231], 2015, 33, "y");
      return _engine['SkPathExtension|rLineTo']($this, x, y);
    }, T$9.doubleAnddoubleTovoid());
  };
  _engine['SkPathExtension|rMoveTo'] = function SkPathExtension$124rMoveTo($this, x, y) {
    if ($this == null) dart.nullFailed(I[231], 2019, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 2019, 23, "x");
    if (y == null) dart.nullFailed(I[231], 2019, 33, "y");
    return $this.rMoveTo(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y));
  };
  _engine['SkPathExtension|get#rMoveTo'] = function SkPathExtension$124get$35rMoveTo($this) {
    if ($this == null) dart.nullFailed(I[231], 2019, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 2019, 23, "x");
      if (y == null) dart.nullFailed(I[231], 2019, 33, "y");
      return _engine['SkPathExtension|rMoveTo']($this, x, y);
    }, T$9.doubleAnddoubleTovoid());
  };
  _engine['SkPathExtension|rQuadTo'] = function SkPathExtension$124rQuadTo($this, x1, y1, x2, y2) {
    if ($this == null) dart.nullFailed(I[231], 2028, 8, "#this");
    if (x1 == null) dart.nullFailed(I[231], 2029, 12, "x1");
    if (y1 == null) dart.nullFailed(I[231], 2030, 12, "y1");
    if (x2 == null) dart.nullFailed(I[231], 2031, 12, "x2");
    if (y2 == null) dart.nullFailed(I[231], 2032, 12, "y2");
    return $this.rQuadTo(js_interop['DoubleToJSNumber|get#toJS'](x1), js_interop['DoubleToJSNumber|get#toJS'](y1), js_interop['DoubleToJSNumber|get#toJS'](x2), js_interop['DoubleToJSNumber|get#toJS'](y2));
  };
  _engine['SkPathExtension|get#rQuadTo'] = function SkPathExtension$124get$35rQuadTo($this) {
    if ($this == null) dart.nullFailed(I[231], 2028, 8, "#this");
    return dart.fn((x1, y1, x2, y2) => {
      if (x1 == null) dart.nullFailed(I[231], 2029, 12, "x1");
      if (y1 == null) dart.nullFailed(I[231], 2030, 12, "y1");
      if (x2 == null) dart.nullFailed(I[231], 2031, 12, "x2");
      if (y2 == null) dart.nullFailed(I[231], 2032, 12, "y2");
      return _engine['SkPathExtension|rQuadTo']($this, x1, y1, x2, y2);
    }, T$10.doubleAnddoubleAnddouble__Tovoid$3());
  };
  _engine['SkPathExtension|toSVGString'] = function SkPathExtension$124toSVGString($this) {
    if ($this == null) dart.nullFailed(I[231], 2039, 10, "#this");
    return js_interop['JSStringToString|get#toDart'](T$.String()[_as]($this.toSVGString()));
  };
  _engine['SkPathExtension|get#toSVGString'] = function SkPathExtension$124get$35toSVGString($this) {
    if ($this == null) dart.nullFailed(I[231], 2039, 10, "#this");
    return dart.fn(() => _engine['SkPathExtension|toSVGString']($this), T$.VoidToString());
  };
  _engine['SkPathExtension|isEmpty'] = function SkPathExtension$124isEmpty($this) {
    if ($this == null) dart.nullFailed(I[231], 2043, 8, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.isEmpty()));
  };
  _engine['SkPathExtension|get#isEmpty'] = function SkPathExtension$124get$35isEmpty($this) {
    if ($this == null) dart.nullFailed(I[231], 2043, 8, "#this");
    return dart.fn(() => _engine['SkPathExtension|isEmpty']($this), T$.VoidTobool());
  };
  _engine['SkPathExtension|transform'] = function SkPathExtension$124transform($this, scaleX, skewX, transX, skewY, scaleY, transY, pers0, pers1, pers2) {
    if ($this == null) dart.nullFailed(I[231], 2059, 8, "#this");
    if (scaleX == null) dart.nullFailed(I[231], 2060, 12, "scaleX");
    if (skewX == null) dart.nullFailed(I[231], 2061, 12, "skewX");
    if (transX == null) dart.nullFailed(I[231], 2062, 12, "transX");
    if (skewY == null) dart.nullFailed(I[231], 2063, 12, "skewY");
    if (scaleY == null) dart.nullFailed(I[231], 2064, 12, "scaleY");
    if (transY == null) dart.nullFailed(I[231], 2065, 12, "transY");
    if (pers0 == null) dart.nullFailed(I[231], 2066, 12, "pers0");
    if (pers1 == null) dart.nullFailed(I[231], 2067, 12, "pers1");
    if (pers2 == null) dart.nullFailed(I[231], 2068, 12, "pers2");
    return js_util.callMethod(T$.void(), $this, "transform", [js_interop['DoubleToJSNumber|get#toJS'](scaleX), js_interop['DoubleToJSNumber|get#toJS'](skewX), js_interop['DoubleToJSNumber|get#toJS'](transX), js_interop['DoubleToJSNumber|get#toJS'](skewY), js_interop['DoubleToJSNumber|get#toJS'](scaleY), js_interop['DoubleToJSNumber|get#toJS'](transY), js_interop['DoubleToJSNumber|get#toJS'](pers0), js_interop['DoubleToJSNumber|get#toJS'](pers1), js_interop['DoubleToJSNumber|get#toJS'](pers2)]);
  };
  _engine['SkPathExtension|get#transform'] = function SkPathExtension$124get$35transform($this) {
    if ($this == null) dart.nullFailed(I[231], 2059, 8, "#this");
    return dart.fn((scaleX, skewX, transX, skewY, scaleY, transY, pers0, pers1, pers2) => {
      if (scaleX == null) dart.nullFailed(I[231], 2060, 12, "scaleX");
      if (skewX == null) dart.nullFailed(I[231], 2061, 12, "skewX");
      if (transX == null) dart.nullFailed(I[231], 2062, 12, "transX");
      if (skewY == null) dart.nullFailed(I[231], 2063, 12, "skewY");
      if (scaleY == null) dart.nullFailed(I[231], 2064, 12, "scaleY");
      if (transY == null) dart.nullFailed(I[231], 2065, 12, "transY");
      if (pers0 == null) dart.nullFailed(I[231], 2066, 12, "pers0");
      if (pers1 == null) dart.nullFailed(I[231], 2067, 12, "pers1");
      if (pers2 == null) dart.nullFailed(I[231], 2068, 12, "pers2");
      return _engine['SkPathExtension|transform']($this, scaleX, skewX, transX, skewY, scaleY, transY, pers0, pers1, pers2);
    }, T$13.doubleAnddoubleAnddouble__Tovoid$11());
  };
  _engine['SkPathExtension|toCmds'] = function SkPathExtension$124toCmds($this) {
    if ($this == null) dart.nullFailed(I[231], 2079, 17, "#this");
    return T$.List()[_as](_engine['JSAnyToObjectExtension|get#toObjectShallow'](T$.Object()[_as]($this.toCmds())));
  };
  _engine['SkPathExtension|get#toCmds'] = function SkPathExtension$124get$35toCmds($this) {
    if ($this == null) dart.nullFailed(I[231], 2079, 17, "#this");
    return dart.fn(() => _engine['SkPathExtension|toCmds']($this), T$13.VoidToList());
  };
  _engine['SkContourMeasureExtension|getSegment'] = function SkContourMeasureExtension$124getSegment($this, start, end, startWithMoveTo) {
    if ($this == null) dart.nullFailed(I[231], 2111, 10, "#this");
    if (start == null) dart.nullFailed(I[231], 2111, 28, "start");
    if (end == null) dart.nullFailed(I[231], 2111, 42, "end");
    if (startWithMoveTo == null) dart.nullFailed(I[231], 2111, 52, "startWithMoveTo");
    return T$10.SkPath()[_as]($this.getSegment(js_interop['DoubleToJSNumber|get#toJS'](start), js_interop['DoubleToJSNumber|get#toJS'](end), js_interop['BoolToJSBoolean|get#toJS'](startWithMoveTo)));
  };
  _engine['SkContourMeasureExtension|get#getSegment'] = function SkContourMeasureExtension$124get$35getSegment($this) {
    if ($this == null) dart.nullFailed(I[231], 2111, 10, "#this");
    return dart.fn((start, end, startWithMoveTo) => {
      if (start == null) dart.nullFailed(I[231], 2111, 28, "start");
      if (end == null) dart.nullFailed(I[231], 2111, 42, "end");
      if (startWithMoveTo == null) dart.nullFailed(I[231], 2111, 52, "startWithMoveTo");
      return _engine['SkContourMeasureExtension|getSegment']($this, start, end, startWithMoveTo);
    }, T$13.doubleAnddoubleAndboolToSkPath());
  };
  _engine['SkContourMeasureExtension|getPosTan'] = function SkContourMeasureExtension$124getPosTan($this, distance) {
    if ($this == null) dart.nullFailed(I[231], 2116, 15, "#this");
    if (distance == null) dart.nullFailed(I[231], 2116, 32, "distance");
    return js_interop['JSFloat32ArrayToFloat32List|get#toDart'](T$0.NativeFloat32List()[_as]($this.getPosTan(js_interop['DoubleToJSNumber|get#toJS'](distance))));
  };
  _engine['SkContourMeasureExtension|get#getPosTan'] = function SkContourMeasureExtension$124get$35getPosTan($this) {
    if ($this == null) dart.nullFailed(I[231], 2116, 15, "#this");
    return dart.fn(distance => {
      if (distance == null) dart.nullFailed(I[231], 2116, 32, "distance");
      return _engine['SkContourMeasureExtension|getPosTan']($this, distance);
    }, T$13.doubleToFloat32List());
  };
  _engine['SkContourMeasureExtension|isClosed'] = function SkContourMeasureExtension$124isClosed($this) {
    if ($this == null) dart.nullFailed(I[231], 2121, 8, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.isClosed()));
  };
  _engine['SkContourMeasureExtension|get#isClosed'] = function SkContourMeasureExtension$124get$35isClosed($this) {
    if ($this == null) dart.nullFailed(I[231], 2121, 8, "#this");
    return dart.fn(() => _engine['SkContourMeasureExtension|isClosed']($this), T$.VoidTobool());
  };
  _engine['SkContourMeasureExtension|length'] = function SkContourMeasureExtension$124length($this) {
    if ($this == null) dart.nullFailed(I[231], 2125, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.length()));
  };
  _engine['SkContourMeasureExtension|get#length'] = function SkContourMeasureExtension$124get$35length($this) {
    if ($this == null) dart.nullFailed(I[231], 2125, 10, "#this");
    return dart.fn(() => _engine['SkContourMeasureExtension|length']($this), T$.VoidTodouble());
  };
  _engine.toSkRect = function toSkRect(rect) {
    if (rect == null) dart.nullFailed(I[231], 2131, 30, "rect");
    let skRect = _native_typed_data.NativeFloat32List.new(4);
    skRect[$_set](0, rect.left);
    skRect[$_set](1, rect.top);
    skRect[$_set](2, rect.right);
    skRect[$_set](3, rect.bottom);
    return skRect;
  };
  _engine.fromSkRect = function fromSkRect(skRect) {
    if (skRect == null) dart.nullFailed(I[231], 2140, 32, "skRect");
    return new ui.Rect.fromLTRB(skRect[$_get](0), skRect[$_get](1), skRect[$_get](2), skRect[$_get](3));
  };
  _engine.rectFromSkIRect = function rectFromSkIRect(skIRect) {
    if (skIRect == null) dart.nullFailed(I[231], 2144, 35, "skIRect");
    return new ui.Rect.fromLTRB(skIRect[$_get](0)[$toDouble](), skIRect[$_get](1)[$toDouble](), skIRect[$_get](2)[$toDouble](), skIRect[$_get](3)[$toDouble]());
  };
  _engine.toSkRRect = function toSkRRect(rrect) {
    if (rrect == null) dart.nullFailed(I[231], 2154, 32, "rrect");
    let skRRect = _native_typed_data.NativeFloat32List.new(12);
    skRRect[$_set](0, rrect.left);
    skRRect[$_set](1, rrect.top);
    skRRect[$_set](2, rrect.right);
    skRRect[$_set](3, rrect.bottom);
    skRRect[$_set](4, rrect.tlRadiusX);
    skRRect[$_set](5, rrect.tlRadiusY);
    skRRect[$_set](6, rrect.trRadiusX);
    skRRect[$_set](7, rrect.trRadiusY);
    skRRect[$_set](8, rrect.brRadiusX);
    skRRect[$_set](9, rrect.brRadiusY);
    skRRect[$_set](10, rrect.blRadiusX);
    skRRect[$_set](11, rrect.blRadiusY);
    return skRRect;
  };
  _engine.toOuterSkRect = function toOuterSkRect(rrect) {
    if (rrect == null) dart.nullFailed(I[231], 2172, 36, "rrect");
    let skRect = _native_typed_data.NativeFloat32List.new(4);
    skRect[$_set](0, rrect.left);
    skRect[$_set](1, rrect.top);
    skRect[$_set](2, rrect.right);
    skRect[$_set](3, rrect.bottom);
    return skRect;
  };
  _engine.toMallocedSkPoints = function toMallocedSkPoints(points) {
    if (points == null) dart.nullFailed(I[231], 2187, 50, "points");
    let len = points[$length];
    let skPoints = _engine.mallocFloat32List(dart.notNull(len) * 2);
    let list = _engine['SkFloat32ListExtension|toTypedArray'](skPoints);
    for (let i = 0; i < dart.notNull(len); i = i + 1) {
      list[$_set](2 * i, points[$_get](i).dx);
      list[$_set](2 * i + 1, points[$_get](i).dy);
    }
    return skPoints;
  };
  _engine.toFlatSkPoints = function toFlatSkPoints(points) {
    if (points == null) dart.nullFailed(I[231], 2199, 44, "points");
    let len = points[$length];
    let result = _native_typed_data.NativeFloat32List.new(dart.notNull(len) * 2);
    for (let i = 0; i < dart.notNull(len); i = i + 1) {
      result[$_set](2 * i, points[$_get](i).dx);
      result[$_set](2 * i + 1, points[$_get](i).dy);
    }
    return result;
  };
  _engine.toFlatColors = function toFlatColors(colors) {
    if (colors == null) dart.nullFailed(I[231], 2210, 40, "colors");
    let len = colors[$length];
    let result = _native_typed_data.NativeUint32List.new(len);
    for (let i = 0; i < dart.notNull(len); i = i + 1) {
      result[$_set](i, colors[$_get](i).value);
    }
    return result;
  };
  _engine.toUint16List = function toUint16List(ints) {
    if (ints == null) dart.nullFailed(I[231], 2219, 35, "ints");
    let len = ints[$length];
    let result = _native_typed_data.NativeUint16List.new(len);
    for (let i = 0; i < dart.notNull(len); i = i + 1) {
      result[$_set](i, ints[$_get](i));
    }
    return result;
  };
  _engine['SkPictureRecorderExtension|beginRecording'] = function SkPictureRecorderExtension$124beginRecording($this, bounds) {
    if ($this == null) dart.nullFailed(I[231], 2238, 12, "#this");
    if (bounds == null) dart.nullFailed(I[231], 2238, 39, "bounds");
    return T$9.SkCanvas()[_as]($this.beginRecording(js_interop['Float32ListToJSFloat32Array|get#toJS'](bounds), js_interop['BoolToJSBoolean|get#toJS'](true)));
  };
  _engine['SkPictureRecorderExtension|get#beginRecording'] = function SkPictureRecorderExtension$124get$35beginRecording($this) {
    if ($this == null) dart.nullFailed(I[231], 2238, 12, "#this");
    return dart.fn(bounds => {
      if (bounds == null) dart.nullFailed(I[231], 2238, 39, "bounds");
      return _engine['SkPictureRecorderExtension|beginRecording']($this, bounds);
    }, T$13.Float32ListToSkCanvas());
  };
  _engine['SkCanvasExtension|get#clear'] = function SkCanvasExtension$124get$35clear($this) {
    if ($this == null) dart.nullFailed(I[231], 2258, 8, "#this");
    return dart.fn(color => {
      if (color == null) dart.nullFailed(I[231], 2258, 26, "color");
      return _engine['SkCanvasExtension|clear']($this, color);
    }, T$7.Float32ListTovoid());
  };
  _engine['SkCanvasExtension|clear'] = function SkCanvasExtension$124clear($this, color) {
    if ($this == null) dart.nullFailed(I[231], 2258, 8, "#this");
    if (color == null) dart.nullFailed(I[231], 2258, 26, "color");
    return $this.clear(js_interop['Float32ListToJSFloat32Array|get#toJS'](color));
  };
  _engine['SkCanvasExtension|clipPath'] = function SkCanvasExtension$124clipPath($this, path, clipOp, doAntiAlias) {
    if ($this == null) dart.nullFailed(I[231], 2266, 8, "#this");
    if (path == null) dart.nullFailed(I[231], 2267, 12, "path");
    if (clipOp == null) dart.nullFailed(I[231], 2268, 14, "clipOp");
    if (doAntiAlias == null) dart.nullFailed(I[231], 2269, 10, "doAntiAlias");
    return $this.clipPath(path, clipOp, js_interop['BoolToJSBoolean|get#toJS'](doAntiAlias));
  };
  _engine['SkCanvasExtension|get#clipPath'] = function SkCanvasExtension$124get$35clipPath($this) {
    if ($this == null) dart.nullFailed(I[231], 2266, 8, "#this");
    return dart.fn((path, clipOp, doAntiAlias) => {
      if (path == null) dart.nullFailed(I[231], 2267, 12, "path");
      if (clipOp == null) dart.nullFailed(I[231], 2268, 14, "clipOp");
      if (doAntiAlias == null) dart.nullFailed(I[231], 2269, 10, "doAntiAlias");
      return _engine['SkCanvasExtension|clipPath']($this, path, clipOp, doAntiAlias);
    }, T$13.SkPathAndSkClipOpAndboolTovoid());
  };
  _engine['SkCanvasExtension|clipRRect'] = function SkCanvasExtension$124clipRRect($this, rrect, clipOp, doAntiAlias) {
    if ($this == null) dart.nullFailed(I[231], 2278, 8, "#this");
    if (rrect == null) dart.nullFailed(I[231], 2279, 17, "rrect");
    if (clipOp == null) dart.nullFailed(I[231], 2280, 14, "clipOp");
    if (doAntiAlias == null) dart.nullFailed(I[231], 2281, 10, "doAntiAlias");
    return $this.clipRRect(js_interop['Float32ListToJSFloat32Array|get#toJS'](rrect), clipOp, js_interop['BoolToJSBoolean|get#toJS'](doAntiAlias));
  };
  _engine['SkCanvasExtension|get#clipRRect'] = function SkCanvasExtension$124get$35clipRRect($this) {
    if ($this == null) dart.nullFailed(I[231], 2278, 8, "#this");
    return dart.fn((rrect, clipOp, doAntiAlias) => {
      if (rrect == null) dart.nullFailed(I[231], 2279, 17, "rrect");
      if (clipOp == null) dart.nullFailed(I[231], 2280, 14, "clipOp");
      if (doAntiAlias == null) dart.nullFailed(I[231], 2281, 10, "doAntiAlias");
      return _engine['SkCanvasExtension|clipRRect']($this, rrect, clipOp, doAntiAlias);
    }, T$13.Float32ListAndSkClipOpAndboolTovoid());
  };
  _engine['SkCanvasExtension|clipRect'] = function SkCanvasExtension$124clipRect($this, rect, clipOp, doAntiAlias) {
    if ($this == null) dart.nullFailed(I[231], 2290, 8, "#this");
    if (rect == null) dart.nullFailed(I[231], 2291, 17, "rect");
    if (clipOp == null) dart.nullFailed(I[231], 2292, 14, "clipOp");
    if (doAntiAlias == null) dart.nullFailed(I[231], 2293, 10, "doAntiAlias");
    return $this.clipRect(js_interop['Float32ListToJSFloat32Array|get#toJS'](rect), clipOp, js_interop['BoolToJSBoolean|get#toJS'](doAntiAlias));
  };
  _engine['SkCanvasExtension|get#clipRect'] = function SkCanvasExtension$124get$35clipRect($this) {
    if ($this == null) dart.nullFailed(I[231], 2290, 8, "#this");
    return dart.fn((rect, clipOp, doAntiAlias) => {
      if (rect == null) dart.nullFailed(I[231], 2291, 17, "rect");
      if (clipOp == null) dart.nullFailed(I[231], 2292, 14, "clipOp");
      if (doAntiAlias == null) dart.nullFailed(I[231], 2293, 10, "doAntiAlias");
      return _engine['SkCanvasExtension|clipRect']($this, rect, clipOp, doAntiAlias);
    }, T$13.Float32ListAndSkClipOpAndboolTovoid());
  };
  _engine['SkCanvasExtension|getDeviceClipBounds'] = function SkCanvasExtension$124getDeviceClipBounds($this) {
    if ($this == null) dart.nullFailed(I[231], 2298, 13, "#this");
    return js_interop['JSInt32ArrayToInt32List|get#toDart'](T$0.NativeInt32List()[_as]($this.getDeviceClipBounds()));
  };
  _engine['SkCanvasExtension|get#getDeviceClipBounds'] = function SkCanvasExtension$124get$35getDeviceClipBounds($this) {
    if ($this == null) dart.nullFailed(I[231], 2298, 13, "#this");
    return dart.fn(() => _engine['SkCanvasExtension|getDeviceClipBounds']($this), T$0.VoidToInt32List());
  };
  _engine['SkCanvasExtension|drawArc'] = function SkCanvasExtension$124drawArc($this, oval, startAngleDegrees, sweepAngleDegrees, useCenter, paint) {
    if ($this == null) dart.nullFailed(I[231], 2308, 8, "#this");
    if (oval == null) dart.nullFailed(I[231], 2309, 17, "oval");
    if (startAngleDegrees == null) dart.nullFailed(I[231], 2310, 12, "startAngleDegrees");
    if (sweepAngleDegrees == null) dart.nullFailed(I[231], 2311, 12, "sweepAngleDegrees");
    if (useCenter == null) dart.nullFailed(I[231], 2312, 10, "useCenter");
    if (paint == null) dart.nullFailed(I[231], 2313, 13, "paint");
    return js_util.callMethod(T$.void(), $this, "drawArc", [js_interop['Float32ListToJSFloat32Array|get#toJS'](oval), js_interop['DoubleToJSNumber|get#toJS'](startAngleDegrees), js_interop['DoubleToJSNumber|get#toJS'](sweepAngleDegrees), js_interop['BoolToJSBoolean|get#toJS'](useCenter), paint]);
  };
  _engine['SkCanvasExtension|get#drawArc'] = function SkCanvasExtension$124get$35drawArc($this) {
    if ($this == null) dart.nullFailed(I[231], 2308, 8, "#this");
    return dart.fn((oval, startAngleDegrees, sweepAngleDegrees, useCenter, paint) => {
      if (oval == null) dart.nullFailed(I[231], 2309, 17, "oval");
      if (startAngleDegrees == null) dart.nullFailed(I[231], 2310, 12, "startAngleDegrees");
      if (sweepAngleDegrees == null) dart.nullFailed(I[231], 2311, 12, "sweepAngleDegrees");
      if (useCenter == null) dart.nullFailed(I[231], 2312, 10, "useCenter");
      if (paint == null) dart.nullFailed(I[231], 2313, 13, "paint");
      return _engine['SkCanvasExtension|drawArc']($this, oval, startAngleDegrees, sweepAngleDegrees, useCenter, paint);
    }, T$13.Float32ListAnddoubleAnddouble__Tovoid$1());
  };
  _engine['SkCanvasExtension|drawAtlas'] = function SkCanvasExtension$124drawAtlas($this, image, rects, rstTransforms, paint, blendMode, colors) {
    let t$36918;
    if ($this == null) dart.nullFailed(I[231], 2326, 8, "#this");
    if (image == null) dart.nullFailed(I[231], 2327, 13, "image");
    if (rects == null) dart.nullFailed(I[231], 2328, 17, "rects");
    if (rstTransforms == null) dart.nullFailed(I[231], 2329, 17, "rstTransforms");
    if (paint == null) dart.nullFailed(I[231], 2330, 13, "paint");
    if (blendMode == null) dart.nullFailed(I[231], 2331, 17, "blendMode");
    return js_util.callMethod(T$.void(), $this, "drawAtlas", [image, js_interop['Float32ListToJSFloat32Array|get#toJS'](rects), js_interop['Float32ListToJSFloat32Array|get#toJS'](rstTransforms), paint, blendMode, (t$36918 = colors, t$36918 == null ? null : js_interop['Uint32ListToJSUint32Array|get#toJS'](t$36918))]);
  };
  _engine['SkCanvasExtension|get#drawAtlas'] = function SkCanvasExtension$124get$35drawAtlas($this) {
    if ($this == null) dart.nullFailed(I[231], 2326, 8, "#this");
    return dart.fn((image, rects, rstTransforms, paint, blendMode, colors) => {
      if (image == null) dart.nullFailed(I[231], 2327, 13, "image");
      if (rects == null) dart.nullFailed(I[231], 2328, 17, "rects");
      if (rstTransforms == null) dart.nullFailed(I[231], 2329, 17, "rstTransforms");
      if (paint == null) dart.nullFailed(I[231], 2330, 13, "paint");
      if (blendMode == null) dart.nullFailed(I[231], 2331, 17, "blendMode");
      return _engine['SkCanvasExtension|drawAtlas']($this, image, rects, rstTransforms, paint, blendMode, colors);
    }, T$13.SkImageAndFloat32ListAndFloat32List__Tovoid());
  };
  _engine['SkCanvasExtension|get#drawCircle'] = function SkCanvasExtension$124get$35drawCircle($this) {
    if ($this == null) dart.nullFailed(I[231], 2343, 8, "#this");
    return dart.fn((x, y, radius, paint) => {
      if (x == null) dart.nullFailed(I[231], 2344, 12, "x");
      if (y == null) dart.nullFailed(I[231], 2345, 12, "y");
      if (radius == null) dart.nullFailed(I[231], 2346, 12, "radius");
      if (paint == null) dart.nullFailed(I[231], 2347, 13, "paint");
      return _engine['SkCanvasExtension|drawCircle']($this, x, y, radius, paint);
    }, T$13.doubleAnddoubleAnddouble__Tovoid$12());
  };
  _engine['SkCanvasExtension|drawCircle'] = function SkCanvasExtension$124drawCircle($this, x, y, radius, paint) {
    if ($this == null) dart.nullFailed(I[231], 2343, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 2344, 12, "x");
    if (y == null) dart.nullFailed(I[231], 2345, 12, "y");
    if (radius == null) dart.nullFailed(I[231], 2346, 12, "radius");
    if (paint == null) dart.nullFailed(I[231], 2347, 13, "paint");
    return $this.drawCircle(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y), js_interop['DoubleToJSNumber|get#toJS'](radius), paint);
  };
  _engine['SkCanvasExtension|drawColorInt'] = function SkCanvasExtension$124drawColorInt($this, color, blendMode) {
    if ($this == null) dart.nullFailed(I[231], 2355, 8, "#this");
    if (color == null) dart.nullFailed(I[231], 2356, 12, "color");
    if (blendMode == null) dart.nullFailed(I[231], 2357, 17, "blendMode");
    return $this.drawColorInt(js_interop['DoubleToJSNumber|get#toJS'](color), blendMode);
  };
  _engine['SkCanvasExtension|get#drawColorInt'] = function SkCanvasExtension$124get$35drawColorInt($this) {
    if ($this == null) dart.nullFailed(I[231], 2355, 8, "#this");
    return dart.fn((color, blendMode) => {
      if (color == null) dart.nullFailed(I[231], 2356, 12, "color");
      if (blendMode == null) dart.nullFailed(I[231], 2357, 17, "blendMode");
      return _engine['SkCanvasExtension|drawColorInt']($this, color, blendMode);
    }, T$13.doubleAndSkBlendModeTovoid());
  };
  _engine['SkCanvasExtension|drawDRRect'] = function SkCanvasExtension$124drawDRRect($this, outer, inner, paint) {
    if ($this == null) dart.nullFailed(I[231], 2366, 8, "#this");
    if (outer == null) dart.nullFailed(I[231], 2367, 17, "outer");
    if (inner == null) dart.nullFailed(I[231], 2368, 17, "inner");
    if (paint == null) dart.nullFailed(I[231], 2369, 13, "paint");
    return $this.drawDRRect(js_interop['Float32ListToJSFloat32Array|get#toJS'](outer), js_interop['Float32ListToJSFloat32Array|get#toJS'](inner), paint);
  };
  _engine['SkCanvasExtension|get#drawDRRect'] = function SkCanvasExtension$124get$35drawDRRect($this) {
    if ($this == null) dart.nullFailed(I[231], 2366, 8, "#this");
    return dart.fn((outer, inner, paint) => {
      if (outer == null) dart.nullFailed(I[231], 2367, 17, "outer");
      if (inner == null) dart.nullFailed(I[231], 2368, 17, "inner");
      if (paint == null) dart.nullFailed(I[231], 2369, 13, "paint");
      return _engine['SkCanvasExtension|drawDRRect']($this, outer, inner, paint);
    }, T$13.Float32ListAndFloat32ListAndSkPaintTovoid());
  };
  _engine['SkCanvasExtension|drawImageCubic'] = function SkCanvasExtension$124drawImageCubic($this, image, x, y, B, C, paint) {
    if ($this == null) dart.nullFailed(I[231], 2381, 8, "#this");
    if (image == null) dart.nullFailed(I[231], 2382, 13, "image");
    if (x == null) dart.nullFailed(I[231], 2383, 12, "x");
    if (y == null) dart.nullFailed(I[231], 2384, 12, "y");
    if (B == null) dart.nullFailed(I[231], 2385, 12, "B");
    if (C == null) dart.nullFailed(I[231], 2386, 12, "C");
    if (paint == null) dart.nullFailed(I[231], 2387, 13, "paint");
    return js_util.callMethod(T$.void(), $this, "drawImageCubic", [image, js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y), js_interop['DoubleToJSNumber|get#toJS'](B), js_interop['DoubleToJSNumber|get#toJS'](C), paint]);
  };
  _engine['SkCanvasExtension|get#drawImageCubic'] = function SkCanvasExtension$124get$35drawImageCubic($this) {
    if ($this == null) dart.nullFailed(I[231], 2381, 8, "#this");
    return dart.fn((image, x, y, B, C, paint) => {
      if (image == null) dart.nullFailed(I[231], 2382, 13, "image");
      if (x == null) dart.nullFailed(I[231], 2383, 12, "x");
      if (y == null) dart.nullFailed(I[231], 2384, 12, "y");
      if (B == null) dart.nullFailed(I[231], 2385, 12, "B");
      if (C == null) dart.nullFailed(I[231], 2386, 12, "C");
      if (paint == null) dart.nullFailed(I[231], 2387, 13, "paint");
      return _engine['SkCanvasExtension|drawImageCubic']($this, image, x, y, B, C, paint);
    }, T$13.SkImageAnddoubleAnddouble__Tovoid());
  };
  _engine['SkCanvasExtension|drawImageOptions'] = function SkCanvasExtension$124drawImageOptions($this, image, x, y, filterMode, mipmapMode, paint) {
    if ($this == null) dart.nullFailed(I[231], 2399, 8, "#this");
    if (image == null) dart.nullFailed(I[231], 2400, 13, "image");
    if (x == null) dart.nullFailed(I[231], 2401, 12, "x");
    if (y == null) dart.nullFailed(I[231], 2402, 12, "y");
    if (filterMode == null) dart.nullFailed(I[231], 2403, 18, "filterMode");
    if (mipmapMode == null) dart.nullFailed(I[231], 2404, 18, "mipmapMode");
    if (paint == null) dart.nullFailed(I[231], 2405, 13, "paint");
    return js_util.callMethod(T$.void(), $this, "drawImageOptions", [image, js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y), filterMode, mipmapMode, paint]);
  };
  _engine['SkCanvasExtension|get#drawImageOptions'] = function SkCanvasExtension$124get$35drawImageOptions($this) {
    if ($this == null) dart.nullFailed(I[231], 2399, 8, "#this");
    return dart.fn((image, x, y, filterMode, mipmapMode, paint) => {
      if (image == null) dart.nullFailed(I[231], 2400, 13, "image");
      if (x == null) dart.nullFailed(I[231], 2401, 12, "x");
      if (y == null) dart.nullFailed(I[231], 2402, 12, "y");
      if (filterMode == null) dart.nullFailed(I[231], 2403, 18, "filterMode");
      if (mipmapMode == null) dart.nullFailed(I[231], 2404, 18, "mipmapMode");
      if (paint == null) dart.nullFailed(I[231], 2405, 13, "paint");
      return _engine['SkCanvasExtension|drawImageOptions']($this, image, x, y, filterMode, mipmapMode, paint);
    }, T$13.SkImageAnddoubleAnddouble__Tovoid$1());
  };
  _engine['SkCanvasExtension|drawImageRectCubic'] = function SkCanvasExtension$124drawImageRectCubic($this, image, src, dst, B, C, paint) {
    if ($this == null) dart.nullFailed(I[231], 2417, 8, "#this");
    if (image == null) dart.nullFailed(I[231], 2418, 13, "image");
    if (src == null) dart.nullFailed(I[231], 2419, 17, "src");
    if (dst == null) dart.nullFailed(I[231], 2420, 17, "dst");
    if (B == null) dart.nullFailed(I[231], 2421, 12, "B");
    if (C == null) dart.nullFailed(I[231], 2422, 12, "C");
    if (paint == null) dart.nullFailed(I[231], 2423, 13, "paint");
    return js_util.callMethod(T$.void(), $this, "drawImageRectCubic", [image, js_interop['Float32ListToJSFloat32Array|get#toJS'](src), js_interop['Float32ListToJSFloat32Array|get#toJS'](dst), js_interop['DoubleToJSNumber|get#toJS'](B), js_interop['DoubleToJSNumber|get#toJS'](C), paint]);
  };
  _engine['SkCanvasExtension|get#drawImageRectCubic'] = function SkCanvasExtension$124get$35drawImageRectCubic($this) {
    if ($this == null) dart.nullFailed(I[231], 2417, 8, "#this");
    return dart.fn((image, src, dst, B, C, paint) => {
      if (image == null) dart.nullFailed(I[231], 2418, 13, "image");
      if (src == null) dart.nullFailed(I[231], 2419, 17, "src");
      if (dst == null) dart.nullFailed(I[231], 2420, 17, "dst");
      if (B == null) dart.nullFailed(I[231], 2421, 12, "B");
      if (C == null) dart.nullFailed(I[231], 2422, 12, "C");
      if (paint == null) dart.nullFailed(I[231], 2423, 13, "paint");
      return _engine['SkCanvasExtension|drawImageRectCubic']($this, image, src, dst, B, C, paint);
    }, T$13.SkImageAndFloat32ListAndFloat32List__Tovoid$1());
  };
  _engine['SkCanvasExtension|get#drawImageRectOptions'] = function SkCanvasExtension$124get$35drawImageRectOptions($this) {
    if ($this == null) dart.nullFailed(I[231], 2435, 8, "#this");
    return dart.fn((image, src, dst, filterMode, mipmapMode, paint) => {
      if (image == null) dart.nullFailed(I[231], 2436, 13, "image");
      if (src == null) dart.nullFailed(I[231], 2437, 17, "src");
      if (dst == null) dart.nullFailed(I[231], 2438, 17, "dst");
      if (filterMode == null) dart.nullFailed(I[231], 2439, 18, "filterMode");
      if (mipmapMode == null) dart.nullFailed(I[231], 2440, 18, "mipmapMode");
      if (paint == null) dart.nullFailed(I[231], 2441, 13, "paint");
      return _engine['SkCanvasExtension|drawImageRectOptions']($this, image, src, dst, filterMode, mipmapMode, paint);
    }, T$13.SkImageAndFloat32ListAndFloat32List__Tovoid$2());
  };
  _engine['SkCanvasExtension|drawImageRectOptions'] = function SkCanvasExtension$124drawImageRectOptions($this, image, src, dst, filterMode, mipmapMode, paint) {
    if ($this == null) dart.nullFailed(I[231], 2435, 8, "#this");
    if (image == null) dart.nullFailed(I[231], 2436, 13, "image");
    if (src == null) dart.nullFailed(I[231], 2437, 17, "src");
    if (dst == null) dart.nullFailed(I[231], 2438, 17, "dst");
    if (filterMode == null) dart.nullFailed(I[231], 2439, 18, "filterMode");
    if (mipmapMode == null) dart.nullFailed(I[231], 2440, 18, "mipmapMode");
    if (paint == null) dart.nullFailed(I[231], 2441, 13, "paint");
    return js_util.callMethod(T$.void(), $this, "drawImageRectOptions", [image, js_interop['Float32ListToJSFloat32Array|get#toJS'](src), js_interop['Float32ListToJSFloat32Array|get#toJS'](dst), filterMode, mipmapMode, paint]);
  };
  _engine['SkCanvasExtension|drawImageNine'] = function SkCanvasExtension$124drawImageNine($this, image, center, dst, filterMode, paint) {
    if ($this == null) dart.nullFailed(I[231], 2453, 8, "#this");
    if (image == null) dart.nullFailed(I[231], 2454, 13, "image");
    if (center == null) dart.nullFailed(I[231], 2455, 17, "center");
    if (dst == null) dart.nullFailed(I[231], 2456, 17, "dst");
    if (filterMode == null) dart.nullFailed(I[231], 2457, 18, "filterMode");
    if (paint == null) dart.nullFailed(I[231], 2458, 13, "paint");
    return js_util.callMethod(T$.void(), $this, "drawImageNine", [image, js_interop['Float32ListToJSFloat32Array|get#toJS'](center), js_interop['Float32ListToJSFloat32Array|get#toJS'](dst), filterMode, paint]);
  };
  _engine['SkCanvasExtension|get#drawImageNine'] = function SkCanvasExtension$124get$35drawImageNine($this) {
    if ($this == null) dart.nullFailed(I[231], 2453, 8, "#this");
    return dart.fn((image, center, dst, filterMode, paint) => {
      if (image == null) dart.nullFailed(I[231], 2454, 13, "image");
      if (center == null) dart.nullFailed(I[231], 2455, 17, "center");
      if (dst == null) dart.nullFailed(I[231], 2456, 17, "dst");
      if (filterMode == null) dart.nullFailed(I[231], 2457, 18, "filterMode");
      if (paint == null) dart.nullFailed(I[231], 2458, 13, "paint");
      return _engine['SkCanvasExtension|drawImageNine']($this, image, center, dst, filterMode, paint);
    }, T$13.SkImageAndFloat32ListAndFloat32List__Tovoid$3());
  };
  _engine['SkCanvasExtension|drawLine'] = function SkCanvasExtension$124drawLine($this, x1, y1, x2, y2, paint) {
    if ($this == null) dart.nullFailed(I[231], 2469, 8, "#this");
    if (x1 == null) dart.nullFailed(I[231], 2470, 12, "x1");
    if (y1 == null) dart.nullFailed(I[231], 2471, 12, "y1");
    if (x2 == null) dart.nullFailed(I[231], 2472, 12, "x2");
    if (y2 == null) dart.nullFailed(I[231], 2473, 12, "y2");
    if (paint == null) dart.nullFailed(I[231], 2474, 13, "paint");
    return js_util.callMethod(T$.void(), $this, "drawLine", [js_interop['DoubleToJSNumber|get#toJS'](x1), js_interop['DoubleToJSNumber|get#toJS'](y1), js_interop['DoubleToJSNumber|get#toJS'](x2), js_interop['DoubleToJSNumber|get#toJS'](y2), paint]);
  };
  _engine['SkCanvasExtension|get#drawLine'] = function SkCanvasExtension$124get$35drawLine($this) {
    if ($this == null) dart.nullFailed(I[231], 2469, 8, "#this");
    return dart.fn((x1, y1, x2, y2, paint) => {
      if (x1 == null) dart.nullFailed(I[231], 2470, 12, "x1");
      if (y1 == null) dart.nullFailed(I[231], 2471, 12, "y1");
      if (x2 == null) dart.nullFailed(I[231], 2472, 12, "x2");
      if (y2 == null) dart.nullFailed(I[231], 2473, 12, "y2");
      if (paint == null) dart.nullFailed(I[231], 2474, 13, "paint");
      return _engine['SkCanvasExtension|drawLine']($this, x1, y1, x2, y2, paint);
    }, T$13.doubleAnddoubleAnddouble__Tovoid$13());
  };
  _engine['SkCanvasExtension|drawOval'] = function SkCanvasExtension$124drawOval($this, rect, paint) {
    if ($this == null) dart.nullFailed(I[231], 2482, 8, "#this");
    if (rect == null) dart.nullFailed(I[231], 2483, 17, "rect");
    if (paint == null) dart.nullFailed(I[231], 2484, 13, "paint");
    return $this.drawOval(js_interop['Float32ListToJSFloat32Array|get#toJS'](rect), paint);
  };
  _engine['SkCanvasExtension|get#drawOval'] = function SkCanvasExtension$124get$35drawOval($this) {
    if ($this == null) dart.nullFailed(I[231], 2482, 8, "#this");
    return dart.fn((rect, paint) => {
      if (rect == null) dart.nullFailed(I[231], 2483, 17, "rect");
      if (paint == null) dart.nullFailed(I[231], 2484, 13, "paint");
      return _engine['SkCanvasExtension|drawOval']($this, rect, paint);
    }, T$13.Float32ListAndSkPaintTovoid());
  };
  _engine['SkCanvasExtension|drawPoints'] = function SkCanvasExtension$124drawPoints($this, pointMode, points, paint) {
    if ($this == null) dart.nullFailed(I[231], 2501, 8, "#this");
    if (pointMode == null) dart.nullFailed(I[231], 2502, 17, "pointMode");
    if (points == null) dart.nullFailed(I[231], 2503, 17, "points");
    if (paint == null) dart.nullFailed(I[231], 2504, 13, "paint");
    return $this.drawPoints(pointMode, js_interop['Float32ListToJSFloat32Array|get#toJS'](points), paint);
  };
  _engine['SkCanvasExtension|get#drawPoints'] = function SkCanvasExtension$124get$35drawPoints($this) {
    if ($this == null) dart.nullFailed(I[231], 2501, 8, "#this");
    return dart.fn((pointMode, points, paint) => {
      if (pointMode == null) dart.nullFailed(I[231], 2502, 17, "pointMode");
      if (points == null) dart.nullFailed(I[231], 2503, 17, "points");
      if (paint == null) dart.nullFailed(I[231], 2504, 13, "paint");
      return _engine['SkCanvasExtension|drawPoints']($this, pointMode, points, paint);
    }, T$13.SkPointModeAndFloat32ListAndSkPaintTovoid());
  };
  _engine['SkCanvasExtension|drawRRect'] = function SkCanvasExtension$124drawRRect($this, rrect, paint) {
    if ($this == null) dart.nullFailed(I[231], 2512, 8, "#this");
    if (rrect == null) dart.nullFailed(I[231], 2513, 17, "rrect");
    if (paint == null) dart.nullFailed(I[231], 2514, 13, "paint");
    return $this.drawRRect(js_interop['Float32ListToJSFloat32Array|get#toJS'](rrect), paint);
  };
  _engine['SkCanvasExtension|get#drawRRect'] = function SkCanvasExtension$124get$35drawRRect($this) {
    if ($this == null) dart.nullFailed(I[231], 2512, 8, "#this");
    return dart.fn((rrect, paint) => {
      if (rrect == null) dart.nullFailed(I[231], 2513, 17, "rrect");
      if (paint == null) dart.nullFailed(I[231], 2514, 13, "paint");
      return _engine['SkCanvasExtension|drawRRect']($this, rrect, paint);
    }, T$13.Float32ListAndSkPaintTovoid());
  };
  _engine['SkCanvasExtension|drawRect'] = function SkCanvasExtension$124drawRect($this, rect, paint) {
    if ($this == null) dart.nullFailed(I[231], 2522, 8, "#this");
    if (rect == null) dart.nullFailed(I[231], 2523, 17, "rect");
    if (paint == null) dart.nullFailed(I[231], 2524, 13, "paint");
    return $this.drawRect(js_interop['Float32ListToJSFloat32Array|get#toJS'](rect), paint);
  };
  _engine['SkCanvasExtension|get#drawRect'] = function SkCanvasExtension$124get$35drawRect($this) {
    if ($this == null) dart.nullFailed(I[231], 2522, 8, "#this");
    return dart.fn((rect, paint) => {
      if (rect == null) dart.nullFailed(I[231], 2523, 17, "rect");
      if (paint == null) dart.nullFailed(I[231], 2524, 13, "paint");
      return _engine['SkCanvasExtension|drawRect']($this, rect, paint);
    }, T$13.Float32ListAndSkPaintTovoid());
  };
  _engine['SkCanvasExtension|drawShadow'] = function SkCanvasExtension$124drawShadow($this, path, zPlaneParams, lightPos, lightRadius, ambientColor, spotColor, flags) {
    if ($this == null) dart.nullFailed(I[231], 2537, 8, "#this");
    if (path == null) dart.nullFailed(I[231], 2538, 12, "path");
    if (zPlaneParams == null) dart.nullFailed(I[231], 2539, 17, "zPlaneParams");
    if (lightPos == null) dart.nullFailed(I[231], 2540, 17, "lightPos");
    if (lightRadius == null) dart.nullFailed(I[231], 2541, 12, "lightRadius");
    if (ambientColor == null) dart.nullFailed(I[231], 2542, 17, "ambientColor");
    if (spotColor == null) dart.nullFailed(I[231], 2543, 17, "spotColor");
    if (flags == null) dart.nullFailed(I[231], 2544, 12, "flags");
    return js_util.callMethod(T$.void(), $this, "drawShadow", [path, js_interop['Float32ListToJSFloat32Array|get#toJS'](zPlaneParams), js_interop['Float32ListToJSFloat32Array|get#toJS'](lightPos), js_interop['DoubleToJSNumber|get#toJS'](lightRadius), js_interop['Float32ListToJSFloat32Array|get#toJS'](ambientColor), js_interop['Float32ListToJSFloat32Array|get#toJS'](spotColor), js_interop['DoubleToJSNumber|get#toJS'](flags)]);
  };
  _engine['SkCanvasExtension|get#drawShadow'] = function SkCanvasExtension$124get$35drawShadow($this) {
    if ($this == null) dart.nullFailed(I[231], 2537, 8, "#this");
    return dart.fn((path, zPlaneParams, lightPos, lightRadius, ambientColor, spotColor, flags) => {
      if (path == null) dart.nullFailed(I[231], 2538, 12, "path");
      if (zPlaneParams == null) dart.nullFailed(I[231], 2539, 17, "zPlaneParams");
      if (lightPos == null) dart.nullFailed(I[231], 2540, 17, "lightPos");
      if (lightRadius == null) dart.nullFailed(I[231], 2541, 12, "lightRadius");
      if (ambientColor == null) dart.nullFailed(I[231], 2542, 17, "ambientColor");
      if (spotColor == null) dart.nullFailed(I[231], 2543, 17, "spotColor");
      if (flags == null) dart.nullFailed(I[231], 2544, 12, "flags");
      return _engine['SkCanvasExtension|drawShadow']($this, path, zPlaneParams, lightPos, lightRadius, ambientColor, spotColor, flags);
    }, T$13.SkPathAndFloat32ListAndFloat32List__Tovoid());
  };
  _engine['SkCanvasExtension|get#save'] = function SkCanvasExtension$124get$35save($this) {
    if ($this == null) dart.nullFailed(I[231], 2556, 10, "#this");
    return dart.fn(() => _engine['SkCanvasExtension|save']($this), T$.VoidTodouble());
  };
  _engine['SkCanvasExtension|save'] = function SkCanvasExtension$124save($this) {
    if ($this == null) dart.nullFailed(I[231], 2556, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.save()));
  };
  _engine['SkCanvasExtension|getSaveCount'] = function SkCanvasExtension$124getSaveCount($this) {
    if ($this == null) dart.nullFailed(I[231], 2560, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getSaveCount()));
  };
  _engine['SkCanvasExtension|get#getSaveCount'] = function SkCanvasExtension$124get$35getSaveCount($this) {
    if ($this == null) dart.nullFailed(I[231], 2560, 10, "#this");
    return dart.fn(() => _engine['SkCanvasExtension|getSaveCount']($this), T$.VoidTodouble());
  };
  _engine['SkCanvasExtension|saveLayer'] = function SkCanvasExtension$124saveLayer($this, paint, bounds, backdrop, flags) {
    let t$36952, t$36952$;
    if ($this == null) dart.nullFailed(I[231], 2569, 8, "#this");
    return $this.saveLayer(paint, (t$36952 = bounds, t$36952 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$36952)), backdrop, (t$36952$ = flags, t$36952$ == null ? null : js_interop['NumToJSExtension|get#toJS'](t$36952$)));
  };
  _engine['SkCanvasExtension|get#saveLayer'] = function SkCanvasExtension$124get$35saveLayer($this) {
    if ($this == null) dart.nullFailed(I[231], 2569, 8, "#this");
    return dart.fn((paint, bounds, backdrop, flags) => _engine['SkCanvasExtension|saveLayer']($this, paint, bounds, backdrop, flags), T$13.SkPaintNAndFloat32ListNAndSkImageFilterN__Tovoid());
  };
  _engine['SkCanvasExtension|restoreToCount'] = function SkCanvasExtension$124restoreToCount($this, count) {
    if ($this == null) dart.nullFailed(I[231], 2580, 8, "#this");
    if (count == null) dart.nullFailed(I[231], 2580, 30, "count");
    return $this.restoreToCount(js_interop['DoubleToJSNumber|get#toJS'](count));
  };
  _engine['SkCanvasExtension|get#restoreToCount'] = function SkCanvasExtension$124get$35restoreToCount($this) {
    if ($this == null) dart.nullFailed(I[231], 2580, 8, "#this");
    return dart.fn(count => {
      if (count == null) dart.nullFailed(I[231], 2580, 30, "count");
      return _engine['SkCanvasExtension|restoreToCount']($this, count);
    }, T$9.doubleTovoid());
  };
  _engine['SkCanvasExtension|rotate'] = function SkCanvasExtension$124rotate($this, angleDegrees, px, py) {
    if ($this == null) dart.nullFailed(I[231], 2588, 8, "#this");
    if (angleDegrees == null) dart.nullFailed(I[231], 2589, 12, "angleDegrees");
    if (px == null) dart.nullFailed(I[231], 2590, 12, "px");
    if (py == null) dart.nullFailed(I[231], 2591, 12, "py");
    return $this.rotate(js_interop['DoubleToJSNumber|get#toJS'](angleDegrees), js_interop['DoubleToJSNumber|get#toJS'](px), js_interop['DoubleToJSNumber|get#toJS'](py));
  };
  _engine['SkCanvasExtension|get#rotate'] = function SkCanvasExtension$124get$35rotate($this) {
    if ($this == null) dart.nullFailed(I[231], 2588, 8, "#this");
    return dart.fn((angleDegrees, px, py) => {
      if (angleDegrees == null) dart.nullFailed(I[231], 2589, 12, "angleDegrees");
      if (px == null) dart.nullFailed(I[231], 2590, 12, "px");
      if (py == null) dart.nullFailed(I[231], 2591, 12, "py");
      return _engine['SkCanvasExtension|rotate']($this, angleDegrees, px, py);
    }, T$12.doubleAnddoubleAnddoubleTovoid$1());
  };
  _engine['SkCanvasExtension|scale'] = function SkCanvasExtension$124scale($this, x, y) {
    if ($this == null) dart.nullFailed(I[231], 2596, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 2596, 21, "x");
    if (y == null) dart.nullFailed(I[231], 2596, 31, "y");
    return $this.scale(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y));
  };
  _engine['SkCanvasExtension|get#scale'] = function SkCanvasExtension$124get$35scale($this) {
    if ($this == null) dart.nullFailed(I[231], 2596, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 2596, 21, "x");
      if (y == null) dart.nullFailed(I[231], 2596, 31, "y");
      return _engine['SkCanvasExtension|scale']($this, x, y);
    }, T$9.doubleAnddoubleTovoid());
  };
  _engine['SkCanvasExtension|skew'] = function SkCanvasExtension$124skew($this, x, y) {
    if ($this == null) dart.nullFailed(I[231], 2600, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 2600, 20, "x");
    if (y == null) dart.nullFailed(I[231], 2600, 30, "y");
    return $this.skew(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y));
  };
  _engine['SkCanvasExtension|get#skew'] = function SkCanvasExtension$124get$35skew($this) {
    if ($this == null) dart.nullFailed(I[231], 2600, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 2600, 20, "x");
      if (y == null) dart.nullFailed(I[231], 2600, 30, "y");
      return _engine['SkCanvasExtension|skew']($this, x, y);
    }, T$9.doubleAnddoubleTovoid());
  };
  _engine['SkCanvasExtension|concat'] = function SkCanvasExtension$124concat($this, matrix) {
    if ($this == null) dart.nullFailed(I[231], 2604, 8, "#this");
    if (matrix == null) dart.nullFailed(I[231], 2604, 27, "matrix");
    return $this.concat(js_interop['Float32ListToJSFloat32Array|get#toJS'](matrix));
  };
  _engine['SkCanvasExtension|get#concat'] = function SkCanvasExtension$124get$35concat($this) {
    if ($this == null) dart.nullFailed(I[231], 2604, 8, "#this");
    return dart.fn(matrix => {
      if (matrix == null) dart.nullFailed(I[231], 2604, 27, "matrix");
      return _engine['SkCanvasExtension|concat']($this, matrix);
    }, T$7.Float32ListTovoid());
  };
  _engine['SkCanvasExtension|translate'] = function SkCanvasExtension$124translate($this, x, y) {
    if ($this == null) dart.nullFailed(I[231], 2608, 8, "#this");
    if (x == null) dart.nullFailed(I[231], 2608, 25, "x");
    if (y == null) dart.nullFailed(I[231], 2608, 35, "y");
    return $this.translate(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y));
  };
  _engine['SkCanvasExtension|get#translate'] = function SkCanvasExtension$124get$35translate($this) {
    if ($this == null) dart.nullFailed(I[231], 2608, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 2608, 25, "x");
      if (y == null) dart.nullFailed(I[231], 2608, 35, "y");
      return _engine['SkCanvasExtension|translate']($this, x, y);
    }, T$9.doubleAnddoubleTovoid());
  };
  _engine['SkCanvasExtension|get#getLocalToDevice'] = function SkCanvasExtension$124get$35getLocalToDevice($this) {
    if ($this == null) dart.nullFailed(I[231], 2612, 17, "#this");
    return dart.fn(() => _engine['SkCanvasExtension|getLocalToDevice']($this), T$13.VoidToList());
  };
  _engine['SkCanvasExtension|getLocalToDevice'] = function SkCanvasExtension$124getLocalToDevice($this) {
    if ($this == null) dart.nullFailed(I[231], 2612, 17, "#this");
    return T$.List()[_as](_engine['JSAnyToObjectExtension|get#toObjectShallow'](T$.Object()[_as]($this.getLocalToDevice())));
  };
  _engine['SkCanvasExtension|drawParagraph'] = function SkCanvasExtension$124drawParagraph($this, paragraph, x, y) {
    if ($this == null) dart.nullFailed(I[231], 2623, 8, "#this");
    if (paragraph == null) dart.nullFailed(I[231], 2624, 17, "paragraph");
    if (x == null) dart.nullFailed(I[231], 2625, 12, "x");
    if (y == null) dart.nullFailed(I[231], 2626, 12, "y");
    return $this.drawParagraph(paragraph, js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y));
  };
  _engine['SkCanvasExtension|get#drawParagraph'] = function SkCanvasExtension$124get$35drawParagraph($this) {
    if ($this == null) dart.nullFailed(I[231], 2623, 8, "#this");
    return dart.fn((paragraph, x, y) => {
      if (paragraph == null) dart.nullFailed(I[231], 2624, 17, "paragraph");
      if (x == null) dart.nullFailed(I[231], 2625, 12, "x");
      if (y == null) dart.nullFailed(I[231], 2626, 12, "y");
      return _engine['SkCanvasExtension|drawParagraph']($this, paragraph, x, y);
    }, T$13.SkParagraphAnddoubleAnddoubleTovoid());
  };
  _engine['SkPictureExtension|get#cullRect'] = function SkPictureExtension$124get$35cullRect($this) {
    if ($this == null) dart.nullFailed(I[231], 2640, 15, "#this");
    return dart.fn(() => _engine['SkPictureExtension|cullRect']($this), T$0.VoidToFloat32List());
  };
  _engine['SkPictureExtension|cullRect'] = function SkPictureExtension$124cullRect($this) {
    if ($this == null) dart.nullFailed(I[231], 2640, 15, "#this");
    return js_interop['JSFloat32ArrayToFloat32List|get#toDart'](T$0.NativeFloat32List()[_as]($this.cullRect()));
  };
  _engine['SkPictureExtension|approximateBytesUsed'] = function SkPictureExtension$124approximateBytesUsed($this) {
    if ($this == null) dart.nullFailed(I[231], 2644, 7, "#this");
    return js_interop['JSNumberToNumber|get#toDartInt'](T$.double()[_as]($this.approximateBytesUsed()));
  };
  _engine['SkPictureExtension|get#approximateBytesUsed'] = function SkPictureExtension$124get$35approximateBytesUsed($this) {
    if ($this == null) dart.nullFailed(I[231], 2644, 7, "#this");
    return dart.fn(() => _engine['SkPictureExtension|approximateBytesUsed']($this), T$.VoidToint());
  };
  _engine['SkParagraphBuilderNamespaceExtension|RequiresClientICU'] = function SkParagraphBuilderNamespaceExtension$124RequiresClientICU($this) {
    if ($this == null) dart.nullFailed(I[231], 2658, 8, "#this");
    if (!dart.test(js_util.hasProperty($this, "RequiresClientICU"))) {
      return false;
    }
    return T$.bool()[_as]($this.RequiresClientICU());
  };
  _engine['SkParagraphBuilderNamespaceExtension|get#RequiresClientICU'] = function SkParagraphBuilderNamespaceExtension$124get$35RequiresClientICU($this) {
    if ($this == null) dart.nullFailed(I[231], 2658, 8, "#this");
    return dart.fn(() => _engine['SkParagraphBuilderNamespaceExtension|RequiresClientICU']($this), T$.VoidTobool());
  };
  _engine['SkParagraphBuilderExtension|addText'] = function SkParagraphBuilderExtension$124addText($this, text) {
    if ($this == null) dart.nullFailed(I[231], 2674, 8, "#this");
    if (text == null) dart.nullFailed(I[231], 2674, 23, "text");
    return $this.addText(js_interop['StringToJSString|get#toJS'](text));
  };
  _engine['SkParagraphBuilderExtension|get#addText'] = function SkParagraphBuilderExtension$124get$35addText($this) {
    if ($this == null) dart.nullFailed(I[231], 2674, 8, "#this");
    return dart.fn(text => {
      if (text == null) dart.nullFailed(I[231], 2674, 23, "text");
      return _engine['SkParagraphBuilderExtension|addText']($this, text);
    }, T$.StringTovoid());
  };
  _engine['SkParagraphBuilderExtension|addPlaceholder'] = function SkParagraphBuilderExtension$124addPlaceholder($this, width, height, alignment, baseline, offset) {
    if ($this == null) dart.nullFailed(I[231], 2689, 8, "#this");
    if (width == null) dart.nullFailed(I[231], 2690, 12, "width");
    if (height == null) dart.nullFailed(I[231], 2691, 12, "height");
    if (alignment == null) dart.nullFailed(I[231], 2692, 28, "alignment");
    if (baseline == null) dart.nullFailed(I[231], 2693, 20, "baseline");
    if (offset == null) dart.nullFailed(I[231], 2694, 12, "offset");
    return js_util.callMethod(T$.void(), $this, "addPlaceholder", [js_interop['DoubleToJSNumber|get#toJS'](width), js_interop['DoubleToJSNumber|get#toJS'](height), alignment, baseline, js_interop['DoubleToJSNumber|get#toJS'](offset)]);
  };
  _engine['SkParagraphBuilderExtension|get#addPlaceholder'] = function SkParagraphBuilderExtension$124get$35addPlaceholder($this) {
    if ($this == null) dart.nullFailed(I[231], 2689, 8, "#this");
    return dart.fn((width, height, alignment, baseline, offset) => {
      if (width == null) dart.nullFailed(I[231], 2690, 12, "width");
      if (height == null) dart.nullFailed(I[231], 2691, 12, "height");
      if (alignment == null) dart.nullFailed(I[231], 2692, 28, "alignment");
      if (baseline == null) dart.nullFailed(I[231], 2693, 20, "baseline");
      if (offset == null) dart.nullFailed(I[231], 2694, 12, "offset");
      return _engine['SkParagraphBuilderExtension|addPlaceholder']($this, width, height, alignment, baseline, offset);
    }, T$13.doubleAnddoubleAndSkPlaceholderAlignment__Tovoid());
  };
  _engine['SkParagraphBuilderExtension|getTextUtf8'] = function SkParagraphBuilderExtension$124getTextUtf8($this) {
    if ($this == null) dart.nullFailed(I[231], 2700, 10, "#this");
    return js_interop['JSStringToString|get#toDart'](T$.String()[_as]($this.getText()));
  };
  _engine['SkParagraphBuilderExtension|get#getTextUtf8'] = function SkParagraphBuilderExtension$124get$35getTextUtf8($this) {
    if ($this == null) dart.nullFailed(I[231], 2700, 10, "#this");
    return dart.fn(() => _engine['SkParagraphBuilderExtension|getTextUtf8']($this), T$.VoidToString());
  };
  _engine['SkParagraphBuilderExtension|getText'] = function SkParagraphBuilderExtension$124getText($this) {
    if ($this == null) dart.nullFailed(I[231], 2703, 10, "#this");
    return convert.utf8.decode(_engine['SkParagraphBuilderExtension|getTextUtf8']($this)[$codeUnits]);
  };
  _engine['SkParagraphBuilderExtension|get#getText'] = function SkParagraphBuilderExtension$124get$35getText($this) {
    if ($this == null) dart.nullFailed(I[231], 2703, 10, "#this");
    return dart.fn(() => _engine['SkParagraphBuilderExtension|getText']($this), T$.VoidToString());
  };
  _engine['SkParagraphBuilderExtension|setWordsUtf8'] = function SkParagraphBuilderExtension$124setWordsUtf8($this, words) {
    if ($this == null) dart.nullFailed(I[231], 2707, 8, "#this");
    if (words == null) dart.nullFailed(I[231], 2707, 32, "words");
    return $this.setWordsUtf8(js_interop['Uint32ListToJSUint32Array|get#toJS'](words));
  };
  _engine['SkParagraphBuilderExtension|get#setWordsUtf8'] = function SkParagraphBuilderExtension$124get$35setWordsUtf8($this) {
    if ($this == null) dart.nullFailed(I[231], 2707, 8, "#this");
    return dart.fn(words => {
      if (words == null) dart.nullFailed(I[231], 2707, 32, "words");
      return _engine['SkParagraphBuilderExtension|setWordsUtf8']($this, words);
    }, T$13.Uint32ListTovoid());
  };
  _engine['SkParagraphBuilderExtension|setWordsUtf16'] = function SkParagraphBuilderExtension$124setWordsUtf16($this, words) {
    if ($this == null) dart.nullFailed(I[231], 2711, 8, "#this");
    if (words == null) dart.nullFailed(I[231], 2711, 33, "words");
    return $this.setWordsUtf16(js_interop['Uint32ListToJSUint32Array|get#toJS'](words));
  };
  _engine['SkParagraphBuilderExtension|get#setWordsUtf16'] = function SkParagraphBuilderExtension$124get$35setWordsUtf16($this) {
    if ($this == null) dart.nullFailed(I[231], 2711, 8, "#this");
    return dart.fn(words => {
      if (words == null) dart.nullFailed(I[231], 2711, 33, "words");
      return _engine['SkParagraphBuilderExtension|setWordsUtf16']($this, words);
    }, T$13.Uint32ListTovoid());
  };
  _engine['SkParagraphBuilderExtension|setGraphemeBreaksUtf8'] = function SkParagraphBuilderExtension$124setGraphemeBreaksUtf8($this, graphemes) {
    if ($this == null) dart.nullFailed(I[231], 2715, 8, "#this");
    if (graphemes == null) dart.nullFailed(I[231], 2715, 41, "graphemes");
    return $this.setGraphemeBreaksUtf8(js_interop['Uint32ListToJSUint32Array|get#toJS'](graphemes));
  };
  _engine['SkParagraphBuilderExtension|get#setGraphemeBreaksUtf8'] = function SkParagraphBuilderExtension$124get$35setGraphemeBreaksUtf8($this) {
    if ($this == null) dart.nullFailed(I[231], 2715, 8, "#this");
    return dart.fn(graphemes => {
      if (graphemes == null) dart.nullFailed(I[231], 2715, 41, "graphemes");
      return _engine['SkParagraphBuilderExtension|setGraphemeBreaksUtf8']($this, graphemes);
    }, T$13.Uint32ListTovoid());
  };
  _engine['SkParagraphBuilderExtension|setGraphemeBreaksUtf16'] = function SkParagraphBuilderExtension$124setGraphemeBreaksUtf16($this, graphemes) {
    if ($this == null) dart.nullFailed(I[231], 2720, 8, "#this");
    if (graphemes == null) dart.nullFailed(I[231], 2720, 42, "graphemes");
    return $this.setGraphemeBreaksUtf16(js_interop['Uint32ListToJSUint32Array|get#toJS'](graphemes));
  };
  _engine['SkParagraphBuilderExtension|get#setGraphemeBreaksUtf16'] = function SkParagraphBuilderExtension$124get$35setGraphemeBreaksUtf16($this) {
    if ($this == null) dart.nullFailed(I[231], 2720, 8, "#this");
    return dart.fn(graphemes => {
      if (graphemes == null) dart.nullFailed(I[231], 2720, 42, "graphemes");
      return _engine['SkParagraphBuilderExtension|setGraphemeBreaksUtf16']($this, graphemes);
    }, T$13.Uint32ListTovoid());
  };
  _engine['SkParagraphBuilderExtension|setLineBreaksUtf8'] = function SkParagraphBuilderExtension$124setLineBreaksUtf8($this, lineBreaks) {
    if ($this == null) dart.nullFailed(I[231], 2725, 8, "#this");
    if (lineBreaks == null) dart.nullFailed(I[231], 2725, 37, "lineBreaks");
    return $this.setLineBreaksUtf8(js_interop['Uint32ListToJSUint32Array|get#toJS'](lineBreaks));
  };
  _engine['SkParagraphBuilderExtension|get#setLineBreaksUtf8'] = function SkParagraphBuilderExtension$124get$35setLineBreaksUtf8($this) {
    if ($this == null) dart.nullFailed(I[231], 2725, 8, "#this");
    return dart.fn(lineBreaks => {
      if (lineBreaks == null) dart.nullFailed(I[231], 2725, 37, "lineBreaks");
      return _engine['SkParagraphBuilderExtension|setLineBreaksUtf8']($this, lineBreaks);
    }, T$13.Uint32ListTovoid());
  };
  _engine['SkParagraphBuilderExtension|setLineBreaksUtf16'] = function SkParagraphBuilderExtension$124setLineBreaksUtf16($this, lineBreaks) {
    if ($this == null) dart.nullFailed(I[231], 2730, 8, "#this");
    if (lineBreaks == null) dart.nullFailed(I[231], 2730, 38, "lineBreaks");
    return $this.setLineBreaksUtf16(js_interop['Uint32ListToJSUint32Array|get#toJS'](lineBreaks));
  };
  _engine['SkParagraphBuilderExtension|get#setLineBreaksUtf16'] = function SkParagraphBuilderExtension$124get$35setLineBreaksUtf16($this) {
    if ($this == null) dart.nullFailed(I[231], 2730, 8, "#this");
    return dart.fn(lineBreaks => {
      if (lineBreaks == null) dart.nullFailed(I[231], 2730, 38, "lineBreaks");
      return _engine['SkParagraphBuilderExtension|setLineBreaksUtf16']($this, lineBreaks);
    }, T$13.Uint32ListTovoid());
  };
  _engine['SkParagraphStylePropertiesExtension|set#heightMultiplier'] = function SkParagraphStylePropertiesExtension$124set$35heightMultiplier($this, value) {
    let t$36996, t$36996$;
    if ($this == null) dart.nullFailed(I[231], 2755, 7, "#this");
    t$36996$ = (t$36996 = value, t$36996 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$36996));
    $this.heightMultiplier = t$36996$;
    return t$36996$;
  };
  _engine['SkParagraphStylePropertiesExtension|set#maxLines'] = function SkParagraphStylePropertiesExtension$124set$35maxLines($this, value) {
    let t$36997, t$36997$;
    if ($this == null) dart.nullFailed(I[231], 2761, 7, "#this");
    t$36997$ = (t$36997 = value, t$36997 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$36997));
    $this.maxLines = t$36997$;
    return t$36997$;
  };
  _engine['SkParagraphStylePropertiesExtension|set#ellipsis'] = function SkParagraphStylePropertiesExtension$124set$35ellipsis($this, value) {
    let t$36998, t$36998$;
    if ($this == null) dart.nullFailed(I[231], 2765, 7, "#this");
    t$36998$ = (t$36998 = value, t$36998 == null ? null : js_interop['StringToJSString|get#toJS'](t$36998));
    $this.ellipsis = t$36998$;
    return t$36998$;
  };
  _engine['SkParagraphStylePropertiesExtension|set#replaceTabCharacters'] = function SkParagraphStylePropertiesExtension$124set$35replaceTabCharacters($this, bool) {
    let t$36999, t$36999$;
    if ($this == null) dart.nullFailed(I[231], 2772, 7, "#this");
    t$36999$ = (t$36999 = bool, t$36999 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$36999));
    $this.replaceTabCharacters = t$36999$;
    return t$36999$;
  };
  _engine['SkTextDecorationStyleExtension|get#value'] = function SkTextDecorationStyleExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 2800, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkTextDecorationStyle = function toSkTextDecorationStyle(style) {
    if (style == null) dart.nullFailed(I[231], 2812, 70, "style");
    return _engine._skTextDecorationStyles[$_get](style.index);
  };
  _engine['SkTextBaselineExtension|get#value'] = function SkTextBaselineExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 2832, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkTextBaseline = function toSkTextBaseline(baseline) {
    if (baseline == null) dart.nullFailed(I[231], 2840, 49, "baseline");
    return _engine._skTextBaselines[$_get](baseline.index);
  };
  _engine['SkPlaceholderAlignmentExtension|get#value'] = function SkPlaceholderAlignmentExtension$124get$35value($this) {
    if ($this == null) dart.nullFailed(I[231], 2864, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "value"));
  };
  _engine.toSkPlaceholderAlignment = function toSkPlaceholderAlignment(alignment) {
    if (alignment == null) dart.nullFailed(I[231], 2878, 29, "alignment");
    return _engine._skPlaceholderAlignments[$_get](alignment.index);
  };
  _engine['SkTextStylePropertiesExtension|set#backgroundColor'] = function SkTextStylePropertiesExtension$124set$35backgroundColor($this, value) {
    let t$361003, t$361003$;
    if ($this == null) dart.nullFailed(I[231], 2892, 7, "#this");
    t$361003$ = (t$361003 = value, t$361003 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$361003));
    $this.backgroundColor = t$361003$;
    return t$361003$;
  };
  _engine['SkTextStylePropertiesExtension|set#color'] = function SkTextStylePropertiesExtension$124set$35color($this, value) {
    let t$361004, t$361004$;
    if ($this == null) dart.nullFailed(I[231], 2897, 7, "#this");
    t$361004$ = (t$361004 = value, t$361004 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$361004));
    $this.color = t$361004$;
    return t$361004$;
  };
  _engine['SkTextStylePropertiesExtension|set#foregroundColor'] = function SkTextStylePropertiesExtension$124set$35foregroundColor($this, value) {
    let t$361005, t$361005$;
    if ($this == null) dart.nullFailed(I[231], 2901, 7, "#this");
    t$361005$ = (t$361005 = value, t$361005 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$361005));
    $this.foregroundColor = t$361005$;
    return t$361005$;
  };
  _engine['SkTextStylePropertiesExtension|set#decoration'] = function SkTextStylePropertiesExtension$124set$35decoration($this, value) {
    let t$361006, t$361006$;
    if ($this == null) dart.nullFailed(I[231], 2905, 7, "#this");
    t$361006$ = (t$361006 = value, t$361006 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$361006));
    $this.decoration = t$361006$;
    return t$361006$;
  };
  _engine['SkTextStylePropertiesExtension|set#decorationThickness'] = function SkTextStylePropertiesExtension$124set$35decorationThickness($this, value) {
    let t$361007, t$361007$;
    if ($this == null) dart.nullFailed(I[231], 2909, 7, "#this");
    t$361007$ = (t$361007 = value, t$361007 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361007));
    $this.decorationThickness = t$361007$;
    return t$361007$;
  };
  _engine['SkTextStylePropertiesExtension|set#decorationColor'] = function SkTextStylePropertiesExtension$124set$35decorationColor($this, value) {
    let t$361008, t$361008$;
    if ($this == null) dart.nullFailed(I[231], 2914, 7, "#this");
    t$361008$ = (t$361008 = value, t$361008 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$361008));
    $this.decorationColor = t$361008$;
    return t$361008$;
  };
  _engine['SkTextStylePropertiesExtension|set#fontSize'] = function SkTextStylePropertiesExtension$124set$35fontSize($this, value) {
    let t$361009, t$361009$;
    if ($this == null) dart.nullFailed(I[231], 2921, 7, "#this");
    t$361009$ = (t$361009 = value, t$361009 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361009));
    $this.fontSize = t$361009$;
    return t$361009$;
  };
  _engine['SkTextStylePropertiesExtension|set#letterSpacing'] = function SkTextStylePropertiesExtension$124set$35letterSpacing($this, value) {
    let t$361010, t$361010$;
    if ($this == null) dart.nullFailed(I[231], 2925, 7, "#this");
    t$361010$ = (t$361010 = value, t$361010 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361010));
    $this.letterSpacing = t$361010$;
    return t$361010$;
  };
  _engine['SkTextStylePropertiesExtension|set#wordSpacing'] = function SkTextStylePropertiesExtension$124set$35wordSpacing($this, value) {
    let t$361011, t$361011$;
    if ($this == null) dart.nullFailed(I[231], 2929, 7, "#this");
    t$361011$ = (t$361011 = value, t$361011 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361011));
    $this.wordSpacing = t$361011$;
    return t$361011$;
  };
  _engine['SkTextStylePropertiesExtension|set#heightMultiplier'] = function SkTextStylePropertiesExtension$124set$35heightMultiplier($this, value) {
    let t$361012, t$361012$;
    if ($this == null) dart.nullFailed(I[231], 2933, 7, "#this");
    t$361012$ = (t$361012 = value, t$361012 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361012));
    $this.heightMultiplier = t$361012$;
    return t$361012$;
  };
  _engine['SkTextStylePropertiesExtension|set#halfLeading'] = function SkTextStylePropertiesExtension$124set$35halfLeading($this, value) {
    let t$361013, t$361013$;
    if ($this == null) dart.nullFailed(I[231], 2937, 7, "#this");
    t$361013$ = (t$361013 = value, t$361013 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$361013));
    $this.halfLeading = t$361013$;
    return t$361013$;
  };
  _engine['SkTextStylePropertiesExtension|set#locale'] = function SkTextStylePropertiesExtension$124set$35locale($this, value) {
    let t$361014, t$361014$;
    if ($this == null) dart.nullFailed(I[231], 2941, 7, "#this");
    t$361014$ = (t$361014 = value, t$361014 == null ? null : js_interop['StringToJSString|get#toJS'](t$361014));
    $this.locale = t$361014$;
    return t$361014$;
  };
  _engine['SkTextStylePropertiesExtension|set#fontFamilies'] = function SkTextStylePropertiesExtension$124set$35fontFamilies($this, value) {
    let t$361015, t$361015$;
    if ($this == null) dart.nullFailed(I[231], 2945, 7, "#this");
    t$361015$ = (t$361015 = value, t$361015 == null ? null : _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](t$361015));
    $this.fontFamilies = t$361015$;
    return t$361015$;
  };
  _engine['SkTextStylePropertiesExtension|set#shadows'] = function SkTextStylePropertiesExtension$124set$35shadows($this, value) {
    let t$361016, t$361016$;
    if ($this == null) dart.nullFailed(I[231], 2951, 7, "#this");
    t$361016$ = (t$361016 = value, t$361016 == null ? null : js_interop['ListToJSArray|get#toJS'](T$.Object(), t$361016));
    $this.shadows = t$361016$;
    return t$361016$;
  };
  _engine['SkTextStylePropertiesExtension|set#fontFeatures'] = function SkTextStylePropertiesExtension$124set$35fontFeatures($this, value) {
    let t$361017, t$361017$;
    if ($this == null) dart.nullFailed(I[231], 2959, 7, "#this");
    t$361017$ = (t$361017 = value, t$361017 == null ? null : js_interop['ListToJSArray|get#toJS'](T$.Object(), t$361017));
    $this.fontFeatures = t$361017$;
    return t$361017$;
  };
  _engine['SkTextStylePropertiesExtension|set#fontVariations'] = function SkTextStylePropertiesExtension$124set$35fontVariations($this, value) {
    let t$361018, t$361018$;
    if ($this == null) dart.nullFailed(I[231], 2967, 7, "#this");
    t$361018$ = (t$361018 = value, t$361018 == null ? null : js_interop['ListToJSArray|get#toJS'](T$.Object(), t$361018));
    $this.fontVariations = t$361018$;
    return t$361018$;
  };
  _engine['SkStrutStylePropertiesExtension|set#fontFamilies'] = function SkStrutStylePropertiesExtension$124set$35fontFamilies($this, value) {
    let t$361019, t$361019$;
    if ($this == null) dart.nullFailed(I[231], 2984, 7, "#this");
    t$361019$ = (t$361019 = value, t$361019 == null ? null : _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](t$361019));
    $this.fontFamilies = t$361019$;
    return t$361019$;
  };
  _engine['SkStrutStylePropertiesExtension|set#fontSize'] = function SkStrutStylePropertiesExtension$124set$35fontSize($this, value) {
    let t$361020, t$361020$;
    if ($this == null) dart.nullFailed(I[231], 2991, 7, "#this");
    t$361020$ = (t$361020 = value, t$361020 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361020));
    $this.fontSize = t$361020$;
    return t$361020$;
  };
  _engine['SkStrutStylePropertiesExtension|set#heightMultiplier'] = function SkStrutStylePropertiesExtension$124set$35heightMultiplier($this, value) {
    let t$361021, t$361021$;
    if ($this == null) dart.nullFailed(I[231], 2995, 7, "#this");
    t$361021$ = (t$361021 = value, t$361021 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361021));
    $this.heightMultiplier = t$361021$;
    return t$361021$;
  };
  _engine['SkStrutStylePropertiesExtension|set#halfLeading'] = function SkStrutStylePropertiesExtension$124set$35halfLeading($this, value) {
    let t$361022, t$361022$;
    if ($this == null) dart.nullFailed(I[231], 2999, 7, "#this");
    t$361022$ = (t$361022 = value, t$361022 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$361022));
    $this.halfLeading = t$361022$;
    return t$361022$;
  };
  _engine['SkStrutStylePropertiesExtension|set#leading'] = function SkStrutStylePropertiesExtension$124set$35leading($this, value) {
    let t$361023, t$361023$;
    if ($this == null) dart.nullFailed(I[231], 3003, 7, "#this");
    t$361023$ = (t$361023 = value, t$361023 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361023));
    $this.leading = t$361023$;
    return t$361023$;
  };
  _engine['SkStrutStylePropertiesExtension|set#strutEnabled'] = function SkStrutStylePropertiesExtension$124set$35strutEnabled($this, value) {
    let t$361024, t$361024$;
    if ($this == null) dart.nullFailed(I[231], 3007, 7, "#this");
    t$361024$ = (t$361024 = value, t$361024 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$361024));
    $this.strutEnabled = t$361024$;
    return t$361024$;
  };
  _engine['SkStrutStylePropertiesExtension|set#forceStrutHeight'] = function SkStrutStylePropertiesExtension$124set$35forceStrutHeight($this, value) {
    let t$361025, t$361025$;
    if ($this == null) dart.nullFailed(I[231], 3011, 7, "#this");
    t$361025$ = (t$361025 = value, t$361025 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$361025));
    $this.forceStrutHeight = t$361025$;
    return t$361025$;
  };
  _engine['SkTextShadowExtension|set#color'] = function SkTextShadowExtension$124set$35color($this, value) {
    let t$361026, t$361026$;
    if ($this == null) dart.nullFailed(I[231], 3036, 7, "#this");
    t$361026$ = (t$361026 = value, t$361026 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$361026));
    $this.color = t$361026$;
    return t$361026$;
  };
  _engine['SkTextShadowExtension|set#offset'] = function SkTextShadowExtension$124set$35offset($this, value) {
    let t$361027, t$361027$;
    if ($this == null) dart.nullFailed(I[231], 3040, 7, "#this");
    t$361027$ = (t$361027 = value, t$361027 == null ? null : js_interop['Float32ListToJSFloat32Array|get#toJS'](t$361027));
    $this.offset = t$361027$;
    return t$361027$;
  };
  _engine['SkTextShadowExtension|set#blurRadius'] = function SkTextShadowExtension$124set$35blurRadius($this, value) {
    let t$361028, t$361028$;
    if ($this == null) dart.nullFailed(I[231], 3044, 7, "#this");
    t$361028$ = (t$361028 = value, t$361028 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361028));
    $this.blurRadius = t$361028$;
    return t$361028$;
  };
  _engine['SkFontFeatureExtension|set#name'] = function SkFontFeatureExtension$124set$35name($this, value) {
    let t$361029, t$361029$;
    if ($this == null) dart.nullFailed(I[231], 3057, 7, "#this");
    t$361029$ = (t$361029 = value, t$361029 == null ? null : js_interop['StringToJSString|get#toJS'](t$361029));
    $this.name = t$361029$;
    return t$361029$;
  };
  _engine['SkFontFeatureExtension|set#value'] = function SkFontFeatureExtension$124set$35value($this, v) {
    let t$361030, t$361030$;
    if ($this == null) dart.nullFailed(I[231], 3061, 7, "#this");
    t$361030$ = (t$361030 = v, t$361030 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$361030));
    $this.value = t$361030$;
    return t$361030$;
  };
  _engine['SkFontVariationExtension|set#axis'] = function SkFontVariationExtension$124set$35axis($this, value) {
    let t$361031, t$361031$;
    if ($this == null) dart.nullFailed(I[231], 3074, 7, "#this");
    t$361031$ = (t$361031 = value, t$361031 == null ? null : js_interop['StringToJSString|get#toJS'](t$361031));
    $this.axis = t$361031$;
    return t$361031$;
  };
  _engine['SkFontVariationExtension|set#value'] = function SkFontVariationExtension$124set$35value($this, v) {
    let t$361032, t$361032$;
    if ($this == null) dart.nullFailed(I[231], 3078, 7, "#this");
    t$361032$ = (t$361032 = v, t$361032 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361032));
    $this.value = t$361032$;
    return t$361032$;
  };
  _engine['SkFontExtension|getGlyphIDs'] = function SkFontExtension$124getGlyphIDs($this, text) {
    if ($this == null) dart.nullFailed(I[231], 3095, 14, "#this");
    if (text == null) dart.nullFailed(I[231], 3095, 33, "text");
    return js_interop['JSUint16ArrayToInt16List|get#toDart'](T$3.NativeUint16List()[_as]($this.getGlyphIDs(js_interop['StringToJSString|get#toJS'](text))));
  };
  _engine['SkFontExtension|get#getGlyphIDs'] = function SkFontExtension$124get$35getGlyphIDs($this) {
    if ($this == null) dart.nullFailed(I[231], 3095, 14, "#this");
    return dart.fn(text => {
      if (text == null) dart.nullFailed(I[231], 3095, 33, "text");
      return _engine['SkFontExtension|getGlyphIDs']($this, text);
    }, T$13.StringToUint16List());
  };
  _engine['SkFontExtension|getGlyphBounds'] = function SkFontExtension$124getGlyphBounds($this, glyphs, paint, output) {
    let t$361035;
    if ($this == null) dart.nullFailed(I[231], 3100, 8, "#this");
    if (glyphs == null) dart.nullFailed(I[231], 3101, 17, "glyphs");
    return $this.getGlyphBounds(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](glyphs), paint, (t$361035 = output, t$361035 == null ? null : js_interop['Uint8ListToJSUint8Array|get#toJS'](t$361035)));
  };
  _engine['SkFontExtension|get#getGlyphBounds'] = function SkFontExtension$124get$35getGlyphBounds($this) {
    if ($this == null) dart.nullFailed(I[231], 3100, 8, "#this");
    return dart.fn((glyphs, paint, output) => {
      if (glyphs == null) dart.nullFailed(I[231], 3101, 17, "glyphs");
      return _engine['SkFontExtension|getGlyphBounds']($this, glyphs, paint, output);
    }, T$13.ListOfintAndSkPaintNAndUint8ListNTovoid());
  };
  _engine['SkFontMgrExtension|get#getFamilyName'] = function SkFontMgrExtension$124get$35getFamilyName($this) {
    if ($this == null) dart.nullFailed(I[231], 3113, 11, "#this");
    return dart.fn(fontId => {
      if (fontId == null) dart.nullFailed(I[231], 3113, 32, "fontId");
      return _engine['SkFontMgrExtension|getFamilyName']($this, fontId);
    }, T$13.doubleToStringN());
  };
  _engine['SkFontMgrExtension|getFamilyName'] = function SkFontMgrExtension$124getFamilyName($this, fontId) {
    let t$361038;
    if ($this == null) dart.nullFailed(I[231], 3113, 11, "#this");
    if (fontId == null) dart.nullFailed(I[231], 3113, 32, "fontId");
    t$361038 = T$.StringN()[_as]($this.getFamilyName(js_interop['DoubleToJSNumber|get#toJS'](fontId)));
    return t$361038 == null ? null : js_interop['JSStringToString|get#toDart'](t$361038);
  };
  _engine['SkFontMgrExtension|MakeTypefaceFromData'] = function SkFontMgrExtension$124MakeTypefaceFromData($this, font) {
    if ($this == null) dart.nullFailed(I[231], 3119, 15, "#this");
    if (font == null) dart.nullFailed(I[231], 3119, 46, "font");
    return T$13.SkTypefaceN()[_as]($this.MakeTypefaceFromData(js_interop['Uint8ListToJSUint8Array|get#toJS'](font)));
  };
  _engine['SkFontMgrExtension|get#MakeTypefaceFromData'] = function SkFontMgrExtension$124get$35MakeTypefaceFromData($this) {
    if ($this == null) dart.nullFailed(I[231], 3119, 15, "#this");
    return dart.fn(font => {
      if (font == null) dart.nullFailed(I[231], 3119, 46, "font");
      return _engine['SkFontMgrExtension|MakeTypefaceFromData']($this, font);
    }, T$13.Uint8ListToSkTypefaceN());
  };
  _engine['TypefaceFontProviderExtension|registerFont'] = function TypefaceFontProviderExtension$124registerFont($this, font, family) {
    if ($this == null) dart.nullFailed(I[231], 3131, 8, "#this");
    if (font == null) dart.nullFailed(I[231], 3131, 31, "font");
    if (family == null) dart.nullFailed(I[231], 3131, 44, "family");
    return $this.registerFont(js_interop['Uint8ListToJSUint8Array|get#toJS'](font), js_interop['StringToJSString|get#toJS'](family));
  };
  _engine['TypefaceFontProviderExtension|get#registerFont'] = function TypefaceFontProviderExtension$124get$35registerFont($this) {
    if ($this == null) dart.nullFailed(I[231], 3131, 8, "#this");
    return dart.fn((font, family) => {
      if (font == null) dart.nullFailed(I[231], 3131, 31, "font");
      if (family == null) dart.nullFailed(I[231], 3131, 44, "family");
      return _engine['TypefaceFontProviderExtension|registerFont']($this, font, family);
    }, T$13.Uint8ListAndStringTovoid());
  };
  _engine['SkLineMetricsExtension|get#startIndex'] = function SkLineMetricsExtension$124get$35startIndex($this) {
    if ($this == null) dart.nullFailed(I[231], 3154, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "startIndex"));
  };
  _engine['SkLineMetricsExtension|get#endIndex'] = function SkLineMetricsExtension$124get$35endIndex($this) {
    if ($this == null) dart.nullFailed(I[231], 3158, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "endIndex"));
  };
  _engine['SkLineMetricsExtension|get#endExcludingWhitespaces'] = function SkLineMetricsExtension$124get$35endExcludingWhitespaces($this) {
    if ($this == null) dart.nullFailed(I[231], 3162, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "endExcludingWhitespaces"));
  };
  _engine['SkLineMetricsExtension|get#endIncludingNewline'] = function SkLineMetricsExtension$124get$35endIncludingNewline($this) {
    if ($this == null) dart.nullFailed(I[231], 3166, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "endIncludingNewline"));
  };
  _engine['SkLineMetricsExtension|get#isHardBreak'] = function SkLineMetricsExtension$124get$35isHardBreak($this) {
    if ($this == null) dart.nullFailed(I[231], 3170, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "isHardBreak"));
  };
  _engine['SkLineMetricsExtension|get#ascent'] = function SkLineMetricsExtension$124get$35ascent($this) {
    if ($this == null) dart.nullFailed(I[231], 3174, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "ascent"));
  };
  _engine['SkLineMetricsExtension|get#descent'] = function SkLineMetricsExtension$124get$35descent($this) {
    if ($this == null) dart.nullFailed(I[231], 3178, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "descent"));
  };
  _engine['SkLineMetricsExtension|get#height'] = function SkLineMetricsExtension$124get$35height($this) {
    if ($this == null) dart.nullFailed(I[231], 3182, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "height"));
  };
  _engine['SkLineMetricsExtension|get#width'] = function SkLineMetricsExtension$124get$35width($this) {
    if ($this == null) dart.nullFailed(I[231], 3186, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "width"));
  };
  _engine['SkLineMetricsExtension|get#left'] = function SkLineMetricsExtension$124get$35left($this) {
    if ($this == null) dart.nullFailed(I[231], 3190, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "left"));
  };
  _engine['SkLineMetricsExtension|get#baseline'] = function SkLineMetricsExtension$124get$35baseline($this) {
    if ($this == null) dart.nullFailed(I[231], 3194, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "baseline"));
  };
  _engine['SkLineMetricsExtension|get#lineNumber'] = function SkLineMetricsExtension$124get$35lineNumber($this) {
    if ($this == null) dart.nullFailed(I[231], 3198, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "lineNumber"));
  };
  _engine['SkGlyphClusterInfoExtension|get#_glyphInfo'] = function SkGlyphClusterInfoExtension$124get$35_glyphInfo($this) {
    if ($this == null) dart.nullFailed(I[231], 3216, 20, "#this");
    let list = js_interop['JSArrayToList|get#toDart'](T$.ObjectN(), js_util.getProperty(T$3.JSArrayOfObjectN(), $this, "graphemeLayoutBounds"))[$cast](T$.double());
    let bounds = new ui.Rect.fromLTRB(js_interop['JSNumberToNumber|get#toDartDouble'](list[$_get](0)), js_interop['JSNumberToNumber|get#toDartDouble'](list[$_get](1)), js_interop['JSNumberToNumber|get#toDartDouble'](list[$_get](2)), js_interop['JSNumberToNumber|get#toDartDouble'](list[$_get](3)));
    let textRange = new ui.TextRange.new({start: _engine['SkTextRangeExtension|get#start'](js_util.getProperty(T$13.SkTextRange(), $this, "graphemeClusterTextRange"))[$toInt](), end: _engine['SkTextRangeExtension|get#end'](js_util.getProperty(T$13.SkTextRange(), $this, "graphemeClusterTextRange"))[$toInt]()});
    return new ui.GlyphInfo.new(bounds, textRange, ui.TextDirection.values[$_get](_engine['SkTextDirectionExtension|get#value'](js_util.getProperty(T$10.SkTextDirection(), $this, "dir"))[$toInt]()));
  };
  _engine['SkRectWithDirectionExtension|get#rect'] = function SkRectWithDirectionExtension$124get$35rect($this) {
    if ($this == null) dart.nullFailed(I[231], 3232, 19, "#this");
    return js_interop['JSFloat32ArrayToFloat32List|get#toDart'](js_util.getProperty(T$0.NativeFloat32List(), $this, "rect"));
  };
  _engine['SkRectWithDirectionExtension|set#rect'] = function SkRectWithDirectionExtension$124set$35rect($this, r) {
    let t$361057;
    if ($this == null) dart.nullFailed(I[231], 3236, 7, "#this");
    if (r == null) dart.nullFailed(I[231], 3236, 24, "r");
    t$361057 = js_interop['Float32ListToJSFloat32Array|get#toJS'](r);
    $this.rect = t$361057;
    return t$361057;
  };
  _engine['SkParagraphExtension|get#getAlphabeticBaseline'] = function SkParagraphExtension$124get$35getAlphabeticBaseline($this) {
    if ($this == null) dart.nullFailed(I[231], 3249, 10, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getAlphabeticBaseline']($this), T$.VoidTodouble());
  };
  _engine['SkParagraphExtension|getAlphabeticBaseline'] = function SkParagraphExtension$124getAlphabeticBaseline($this) {
    if ($this == null) dart.nullFailed(I[231], 3249, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getAlphabeticBaseline()));
  };
  _engine['SkParagraphExtension|didExceedMaxLines'] = function SkParagraphExtension$124didExceedMaxLines($this) {
    if ($this == null) dart.nullFailed(I[231], 3253, 8, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.didExceedMaxLines()));
  };
  _engine['SkParagraphExtension|get#didExceedMaxLines'] = function SkParagraphExtension$124get$35didExceedMaxLines($this) {
    if ($this == null) dart.nullFailed(I[231], 3253, 8, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|didExceedMaxLines']($this), T$.VoidTobool());
  };
  _engine['SkParagraphExtension|getHeight'] = function SkParagraphExtension$124getHeight($this) {
    if ($this == null) dart.nullFailed(I[231], 3257, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getHeight()));
  };
  _engine['SkParagraphExtension|get#getHeight'] = function SkParagraphExtension$124get$35getHeight($this) {
    if ($this == null) dart.nullFailed(I[231], 3257, 10, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getHeight']($this), T$.VoidTodouble());
  };
  _engine['SkParagraphExtension|getIdeographicBaseline'] = function SkParagraphExtension$124getIdeographicBaseline($this) {
    if ($this == null) dart.nullFailed(I[231], 3261, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getIdeographicBaseline()));
  };
  _engine['SkParagraphExtension|get#getIdeographicBaseline'] = function SkParagraphExtension$124get$35getIdeographicBaseline($this) {
    if ($this == null) dart.nullFailed(I[231], 3261, 10, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getIdeographicBaseline']($this), T$.VoidTodouble());
  };
  _engine['SkParagraphExtension|getLineMetrics'] = function SkParagraphExtension$124getLineMetrics($this) {
    if ($this == null) dart.nullFailed(I[231], 3265, 23, "#this");
    return js_interop['JSArrayToList|get#toDart'](T$.ObjectN(), T$3.JSArrayOfObjectN()[_as]($this.getLineMetrics()))[$cast](T$10.SkLineMetrics());
  };
  _engine['SkParagraphExtension|get#getLineMetrics'] = function SkParagraphExtension$124get$35getLineMetrics($this) {
    if ($this == null) dart.nullFailed(I[231], 3265, 23, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getLineMetrics']($this), T$13.VoidToListOfSkLineMetrics());
  };
  _engine['SkParagraphExtension|getLineMetricsAt'] = function SkParagraphExtension$124getLineMetricsAt($this, index) {
    if ($this == null) dart.nullFailed(I[231], 3270, 18, "#this");
    if (index == null) dart.nullFailed(I[231], 3270, 42, "index");
    return T$13.SkLineMetricsN()[_as]($this.getLineMetricsAt(js_interop['DoubleToJSNumber|get#toJS'](index)));
  };
  _engine['SkParagraphExtension|get#getLineMetricsAt'] = function SkParagraphExtension$124get$35getLineMetricsAt($this) {
    if ($this == null) dart.nullFailed(I[231], 3270, 18, "#this");
    return dart.fn(index => {
      if (index == null) dart.nullFailed(I[231], 3270, 42, "index");
      return _engine['SkParagraphExtension|getLineMetricsAt']($this, index);
    }, T$13.doubleToSkLineMetricsN());
  };
  _engine['SkParagraphExtension|get#getNumberOfLines'] = function SkParagraphExtension$124get$35getNumberOfLines($this) {
    if ($this == null) dart.nullFailed(I[231], 3274, 10, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getNumberOfLines']($this), T$.VoidTodouble());
  };
  _engine['SkParagraphExtension|getNumberOfLines'] = function SkParagraphExtension$124getNumberOfLines($this) {
    if ($this == null) dart.nullFailed(I[231], 3274, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getNumberOfLines()));
  };
  _engine['SkParagraphExtension|getLineNumberAt'] = function SkParagraphExtension$124getLineNumberAt($this, index) {
    if ($this == null) dart.nullFailed(I[231], 3278, 10, "#this");
    if (index == null) dart.nullFailed(I[231], 3278, 33, "index");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getLineNumberAt(js_interop['DoubleToJSNumber|get#toJS'](index))));
  };
  _engine['SkParagraphExtension|get#getLineNumberAt'] = function SkParagraphExtension$124get$35getLineNumberAt($this) {
    if ($this == null) dart.nullFailed(I[231], 3278, 10, "#this");
    return dart.fn(index => {
      if (index == null) dart.nullFailed(I[231], 3278, 33, "index");
      return _engine['SkParagraphExtension|getLineNumberAt']($this, index);
    }, T$8.doubleTodouble());
  };
  _engine['SkParagraphExtension|getLongestLine'] = function SkParagraphExtension$124getLongestLine($this) {
    if ($this == null) dart.nullFailed(I[231], 3282, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getLongestLine()));
  };
  _engine['SkParagraphExtension|get#getLongestLine'] = function SkParagraphExtension$124get$35getLongestLine($this) {
    if ($this == null) dart.nullFailed(I[231], 3282, 10, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getLongestLine']($this), T$.VoidTodouble());
  };
  _engine['SkParagraphExtension|getMaxIntrinsicWidth'] = function SkParagraphExtension$124getMaxIntrinsicWidth($this) {
    if ($this == null) dart.nullFailed(I[231], 3286, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getMaxIntrinsicWidth()));
  };
  _engine['SkParagraphExtension|get#getMaxIntrinsicWidth'] = function SkParagraphExtension$124get$35getMaxIntrinsicWidth($this) {
    if ($this == null) dart.nullFailed(I[231], 3286, 10, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getMaxIntrinsicWidth']($this), T$.VoidTodouble());
  };
  _engine['SkParagraphExtension|getMinIntrinsicWidth'] = function SkParagraphExtension$124getMinIntrinsicWidth($this) {
    if ($this == null) dart.nullFailed(I[231], 3290, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getMinIntrinsicWidth()));
  };
  _engine['SkParagraphExtension|get#getMinIntrinsicWidth'] = function SkParagraphExtension$124get$35getMinIntrinsicWidth($this) {
    if ($this == null) dart.nullFailed(I[231], 3290, 10, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getMinIntrinsicWidth']($this), T$.VoidTodouble());
  };
  _engine['SkParagraphExtension|getMaxWidth'] = function SkParagraphExtension$124getMaxWidth($this) {
    if ($this == null) dart.nullFailed(I[231], 3294, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getMaxWidth()));
  };
  _engine['SkParagraphExtension|get#getMaxWidth'] = function SkParagraphExtension$124get$35getMaxWidth($this) {
    if ($this == null) dart.nullFailed(I[231], 3294, 10, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getMaxWidth']($this), T$.VoidTodouble());
  };
  _engine['SkParagraphExtension|getRectsForRange'] = function SkParagraphExtension$124getRectsForRange($this, start, end, heightStyle, widthStyle) {
    if ($this == null) dart.nullFailed(I[231], 3303, 29, "#this");
    if (start == null) dart.nullFailed(I[231], 3304, 12, "start");
    if (end == null) dart.nullFailed(I[231], 3305, 12, "end");
    if (heightStyle == null) dart.nullFailed(I[231], 3306, 23, "heightStyle");
    if (widthStyle == null) dart.nullFailed(I[231], 3307, 22, "widthStyle");
    return js_interop['JSArrayToList|get#toDart'](T$.ObjectN(), T$3.JSArrayOfObjectN()[_as]($this.getRectsForRange(js_interop['DoubleToJSNumber|get#toJS'](start), js_interop['DoubleToJSNumber|get#toJS'](end), heightStyle, widthStyle)))[$cast](T$13.SkRectWithDirection());
  };
  _engine['SkParagraphExtension|get#getRectsForRange'] = function SkParagraphExtension$124get$35getRectsForRange($this) {
    if ($this == null) dart.nullFailed(I[231], 3303, 29, "#this");
    return dart.fn((start, end, heightStyle, widthStyle) => {
      if (start == null) dart.nullFailed(I[231], 3304, 12, "start");
      if (end == null) dart.nullFailed(I[231], 3305, 12, "end");
      if (heightStyle == null) dart.nullFailed(I[231], 3306, 23, "heightStyle");
      if (widthStyle == null) dart.nullFailed(I[231], 3307, 22, "widthStyle");
      return _engine['SkParagraphExtension|getRectsForRange']($this, start, end, heightStyle, widthStyle);
    }, T$13.doubleAnddoubleAndSkRectHeightStyle__ToListOfSkRectWithDirection());
  };
  _engine['SkParagraphExtension|getRectsForPlaceholders'] = function SkParagraphExtension$124getRectsForPlaceholders($this) {
    if ($this == null) dart.nullFailed(I[231], 3313, 29, "#this");
    return js_interop['JSArrayToList|get#toDart'](T$.ObjectN(), T$3.JSArrayOfObjectN()[_as]($this.getRectsForPlaceholders()))[$cast](T$13.SkRectWithDirection());
  };
  _engine['SkParagraphExtension|get#getRectsForPlaceholders'] = function SkParagraphExtension$124get$35getRectsForPlaceholders($this) {
    if ($this == null) dart.nullFailed(I[231], 3313, 29, "#this");
    return dart.fn(() => _engine['SkParagraphExtension|getRectsForPlaceholders']($this), T$13.VoidToListOfSkRectWithDirection());
  };
  _engine['SkParagraphExtension|getGlyphPositionAtCoordinate'] = function SkParagraphExtension$124getGlyphPositionAtCoordinate($this, x, y) {
    if ($this == null) dart.nullFailed(I[231], 3321, 18, "#this");
    if (x == null) dart.nullFailed(I[231], 3322, 12, "x");
    if (y == null) dart.nullFailed(I[231], 3323, 12, "y");
    return T$13.SkTextPosition()[_as]($this.getGlyphPositionAtCoordinate(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y)));
  };
  _engine['SkParagraphExtension|get#getGlyphPositionAtCoordinate'] = function SkParagraphExtension$124get$35getGlyphPositionAtCoordinate($this) {
    if ($this == null) dart.nullFailed(I[231], 3321, 18, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 3322, 12, "x");
      if (y == null) dart.nullFailed(I[231], 3323, 12, "y");
      return _engine['SkParagraphExtension|getGlyphPositionAtCoordinate']($this, x, y);
    }, T$13.doubleAnddoubleToSkTextPosition());
  };
  _engine['SkParagraphExtension|get#getGlyphInfoAt'] = function SkParagraphExtension$124get$35getGlyphInfoAt($this) {
    if ($this == null) dart.nullFailed(I[231], 3328, 17, "#this");
    return dart.fn(position => {
      if (position == null) dart.nullFailed(I[231], 3328, 39, "position");
      return _engine['SkParagraphExtension|getGlyphInfoAt']($this, position);
    }, T$13.doubleToGlyphInfoN());
  };
  _engine['SkParagraphExtension|getGlyphInfoAt'] = function SkParagraphExtension$124getGlyphInfoAt($this, position) {
    let t$361089;
    if ($this == null) dart.nullFailed(I[231], 3328, 17, "#this");
    if (position == null) dart.nullFailed(I[231], 3328, 39, "position");
    t$361089 = T$13.SkGlyphClusterInfoN()[_as]($this.getGlyphInfoAt(js_interop['DoubleToJSNumber|get#toJS'](position)));
    return t$361089 == null ? null : _engine['SkGlyphClusterInfoExtension|get#_glyphInfo'](t$361089);
  };
  _engine['SkParagraphExtension|getClosestGlyphInfoAt'] = function SkParagraphExtension$124getClosestGlyphInfoAt($this, x, y) {
    let t$361090;
    if ($this == null) dart.nullFailed(I[231], 3332, 17, "#this");
    if (x == null) dart.nullFailed(I[231], 3332, 46, "x");
    if (y == null) dart.nullFailed(I[231], 3332, 56, "y");
    t$361090 = T$13.SkGlyphClusterInfoN()[_as]($this.getClosestGlyphInfoAtCoordinate(js_interop['DoubleToJSNumber|get#toJS'](x), js_interop['DoubleToJSNumber|get#toJS'](y)));
    return t$361090 == null ? null : _engine['SkGlyphClusterInfoExtension|get#_glyphInfo'](t$361090);
  };
  _engine['SkParagraphExtension|get#getClosestGlyphInfoAt'] = function SkParagraphExtension$124get$35getClosestGlyphInfoAt($this) {
    if ($this == null) dart.nullFailed(I[231], 3332, 17, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[231], 3332, 46, "x");
      if (y == null) dart.nullFailed(I[231], 3332, 56, "y");
      return _engine['SkParagraphExtension|getClosestGlyphInfoAt']($this, x, y);
    }, T$13.doubleAnddoubleToGlyphInfoN());
  };
  _engine['SkParagraphExtension|getWordBoundary'] = function SkParagraphExtension$124getWordBoundary($this, position) {
    if ($this == null) dart.nullFailed(I[231], 3336, 15, "#this");
    if (position == null) dart.nullFailed(I[231], 3336, 38, "position");
    return T$13.SkTextRange()[_as]($this.getWordBoundary(js_interop['DoubleToJSNumber|get#toJS'](position)));
  };
  _engine['SkParagraphExtension|get#getWordBoundary'] = function SkParagraphExtension$124get$35getWordBoundary($this) {
    if ($this == null) dart.nullFailed(I[231], 3336, 15, "#this");
    return dart.fn(position => {
      if (position == null) dart.nullFailed(I[231], 3336, 38, "position");
      return _engine['SkParagraphExtension|getWordBoundary']($this, position);
    }, T$13.doubleToSkTextRange());
  };
  _engine['SkParagraphExtension|layout'] = function SkParagraphExtension$124layout($this, width) {
    if ($this == null) dart.nullFailed(I[231], 3341, 8, "#this");
    if (width == null) dart.nullFailed(I[231], 3341, 22, "width");
    return $this.layout(js_interop['DoubleToJSNumber|get#toJS'](width));
  };
  _engine['SkParagraphExtension|get#layout'] = function SkParagraphExtension$124get$35layout($this) {
    if ($this == null) dart.nullFailed(I[231], 3341, 8, "#this");
    return dart.fn(width => {
      if (width == null) dart.nullFailed(I[231], 3341, 22, "width");
      return _engine['SkParagraphExtension|layout']($this, width);
    }, T$9.doubleTovoid());
  };
  _engine['SkTextPositionExtnsion|get#pos'] = function SkTextPositionExtnsion$124get$35pos($this) {
    if ($this == null) dart.nullFailed(I[231], 3355, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "pos"));
  };
  _engine['SkTextRangeExtension|get#start'] = function SkTextRangeExtension$124get$35start($this) {
    if ($this == null) dart.nullFailed(I[231], 3365, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "start"));
  };
  _engine['SkTextRangeExtension|get#end'] = function SkTextRangeExtension$124get$35end($this) {
    if ($this == null) dart.nullFailed(I[231], 3369, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "end"));
  };
  _engine['SkTonalColorsExtension|get#ambient'] = function SkTonalColorsExtension$124get$35ambient($this) {
    if ($this == null) dart.nullFailed(I[231], 3398, 19, "#this");
    return js_interop['JSFloat32ArrayToFloat32List|get#toDart'](js_util.getProperty(T$0.NativeFloat32List(), $this, "ambient"));
  };
  _engine['SkTonalColorsExtension|get#spot'] = function SkTonalColorsExtension$124get$35spot($this) {
    if ($this == null) dart.nullFailed(I[231], 3402, 19, "#this");
    return js_interop['JSFloat32ArrayToFloat32List|get#toDart'](js_util.getProperty(T$0.NativeFloat32List(), $this, "spot"));
  };
  _engine['SkFontMgrNamespaceExtension|FromData'] = function SkFontMgrNamespaceExtension$124FromData($this, fonts) {
    if ($this == null) dart.nullFailed(I[231], 3413, 14, "#this");
    if (fonts == null) dart.nullFailed(I[231], 3413, 39, "fonts");
    return T$13.SkFontMgrN()[_as]($this.FromData(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](fonts)));
  };
  _engine['SkFontMgrNamespaceExtension|get#FromData'] = function SkFontMgrNamespaceExtension$124get$35FromData($this) {
    if ($this == null) dart.nullFailed(I[231], 3413, 14, "#this");
    return dart.fn(fonts => {
      if (fonts == null) dart.nullFailed(I[231], 3413, 39, "fonts");
      return _engine['SkFontMgrNamespaceExtension|FromData']($this, fonts);
    }, T$13.ListOfUint8ListToSkFontMgrN());
  };
  _engine['SkTypefaceFactoryExtension|get#MakeFreeTypeFaceFromData'] = function SkTypefaceFactoryExtension$124get$35MakeFreeTypeFaceFromData($this) {
    if ($this == null) dart.nullFailed(I[231], 3440, 15, "#this");
    return dart.fn(fontData => {
      if (fontData == null) dart.nullFailed(I[231], 3440, 51, "fontData");
      return _engine['SkTypefaceFactoryExtension|MakeFreeTypeFaceFromData']($this, fontData);
    }, T$13.ByteBufferToSkTypefaceN());
  };
  _engine['SkTypefaceFactoryExtension|MakeFreeTypeFaceFromData'] = function SkTypefaceFactoryExtension$124MakeFreeTypeFaceFromData($this, fontData) {
    if ($this == null) dart.nullFailed(I[231], 3440, 15, "#this");
    if (fontData == null) dart.nullFailed(I[231], 3440, 51, "fontData");
    return T$13.SkTypefaceN()[_as]($this.MakeFreeTypeFaceFromData(js_interop['ByteBufferToJSArrayBuffer|get#toJS'](fontData)));
  };
  _engine['SkDeletableExtension|isDeleted'] = function SkDeletableExtension$124isDeleted($this) {
    if ($this == null) dart.nullFailed(I[231], 3457, 8, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.isDeleted()));
  };
  _engine['SkDeletableExtension|get#isDeleted'] = function SkDeletableExtension$124get$35isDeleted($this) {
    if ($this == null) dart.nullFailed(I[231], 3457, 8, "#this");
    return dart.fn(() => _engine['SkDeletableExtension|isDeleted']($this), T$.VoidTobool());
  };
  _engine['JsConstructorExtension|get#name'] = function JsConstructorExtension$124get$35name($this) {
    if ($this == null) dart.nullFailed(I[231], 3477, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "name"));
  };
  _engine['SkDataExtension|get#size'] = function SkDataExtension$124get$35size($this) {
    if ($this == null) dart.nullFailed(I[231], 3487, 10, "#this");
    return dart.fn(() => _engine['SkDataExtension|size']($this), T$.VoidTodouble());
  };
  _engine['SkDataExtension|size'] = function SkDataExtension$124size($this) {
    if ($this == null) dart.nullFailed(I[231], 3487, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.size()));
  };
  _engine['SkDataExtension|isEmpty'] = function SkDataExtension$124isEmpty($this) {
    if ($this == null) dart.nullFailed(I[231], 3491, 8, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.isEmpty()));
  };
  _engine['SkDataExtension|get#isEmpty'] = function SkDataExtension$124get$35isEmpty($this) {
    if ($this == null) dart.nullFailed(I[231], 3491, 8, "#this");
    return dart.fn(() => _engine['SkDataExtension|isEmpty']($this), T$.VoidTobool());
  };
  _engine['SkDataExtension|bytes'] = function SkDataExtension$124bytes($this) {
    if ($this == null) dart.nullFailed(I[231], 3495, 13, "#this");
    return js_interop['JSUint8ArrayToUint8List|get#toDart'](T$3.NativeUint8List()[_as]($this.bytes()));
  };
  _engine['SkDataExtension|get#bytes'] = function SkDataExtension$124get$35bytes($this) {
    if ($this == null) dart.nullFailed(I[231], 3495, 13, "#this");
    return dart.fn(() => _engine['SkDataExtension|bytes']($this), T$.VoidToUint8List());
  };
  _engine['SkImageInfoExtension|get#height'] = function SkImageInfoExtension$124get$35height($this) {
    if ($this == null) dart.nullFailed(I[231], 3531, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "height"));
  };
  _engine['SkImageInfoExtension|get#isEmpty'] = function SkImageInfoExtension$124get$35isEmpty($this) {
    if ($this == null) dart.nullFailed(I[231], 3535, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "isEmpty"));
  };
  _engine['SkImageInfoExtension|get#isOpaque'] = function SkImageInfoExtension$124get$35isOpaque($this) {
    if ($this == null) dart.nullFailed(I[231], 3539, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "isOpaque"));
  };
  _engine['SkImageInfoExtension|get#bounds'] = function SkImageInfoExtension$124get$35bounds($this) {
    if ($this == null) dart.nullFailed(I[231], 3543, 19, "#this");
    return js_interop['JSFloat32ArrayToFloat32List|get#toDart'](js_util.getProperty(T$0.NativeFloat32List(), $this, "bounds"));
  };
  _engine['SkImageInfoExtension|get#width'] = function SkImageInfoExtension$124get$35width($this) {
    if ($this == null) dart.nullFailed(I[231], 3547, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "width"));
  };
  _engine['SkImageInfoExtension|makeWH'] = function SkImageInfoExtension$124makeWH($this, width, height) {
    if ($this == null) dart.nullFailed(I[231], 3555, 15, "#this");
    if (width == null) dart.nullFailed(I[231], 3555, 29, "width");
    if (height == null) dart.nullFailed(I[231], 3555, 43, "height");
    return T$13.SkImageInfo()[_as]($this.makeWH(js_interop['DoubleToJSNumber|get#toJS'](width), js_interop['DoubleToJSNumber|get#toJS'](height)));
  };
  _engine['SkImageInfoExtension|get#makeWH'] = function SkImageInfoExtension$124get$35makeWH($this) {
    if ($this == null) dart.nullFailed(I[231], 3555, 15, "#this");
    return dart.fn((width, height) => {
      if (width == null) dart.nullFailed(I[231], 3555, 29, "width");
      if (height == null) dart.nullFailed(I[231], 3555, 43, "height");
      return _engine['SkImageInfoExtension|makeWH']($this, width, height);
    }, T$13.doubleAnddoubleToSkImageInfo());
  };
  _engine['SkPartialImageInfoExtension|get#height'] = function SkPartialImageInfoExtension$124get$35height($this) {
    if ($this == null) dart.nullFailed(I[231], 3590, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "height"));
  };
  _engine['SkPartialImageInfoExtension|get#width'] = function SkPartialImageInfoExtension$124get$35width($this) {
    if ($this == null) dart.nullFailed(I[231], 3594, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "width"));
  };
  _engine.MakeRuntimeEffect = function MakeRuntimeEffect(program) {
    if (program == null) dart.nullFailed(I[231], 3604, 43, "program");
    return dart.global.window.flutterCanvasKit.RuntimeEffect.Make(js_interop['StringToJSString|get#toJS'](program));
  };
  _engine['SkSkRuntimeEffectExtension|makeShader'] = function SkSkRuntimeEffectExtension$124makeShader($this, uniforms) {
    if ($this == null) dart.nullFailed(I[231], 3610, 13, "#this");
    if (uniforms == null) dart.nullFailed(I[231], 3610, 38, "uniforms");
    return T$10.SkShaderN()[_as]($this.makeShader(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](uniforms)));
  };
  _engine['SkSkRuntimeEffectExtension|get#makeShader'] = function SkSkRuntimeEffectExtension$124get$35makeShader($this) {
    if ($this == null) dart.nullFailed(I[231], 3610, 13, "#this");
    return dart.fn(uniforms => {
      if (uniforms == null) dart.nullFailed(I[231], 3610, 38, "uniforms");
      return _engine['SkSkRuntimeEffectExtension|makeShader']($this, uniforms);
    }, T$13.SkFloat32ListToSkShaderN());
  };
  _engine['SkSkRuntimeEffectExtension|makeShaderWithChildren'] = function SkSkRuntimeEffectExtension$124makeShaderWithChildren($this, uniforms, children) {
    if ($this == null) dart.nullFailed(I[231], 3615, 13, "#this");
    if (uniforms == null) dart.nullFailed(I[231], 3616, 25, "uniforms");
    if (children == null) dart.nullFailed(I[231], 3616, 49, "children");
    return T$10.SkShaderN()[_as]($this.makeShaderWithChildren(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](uniforms), _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](children)));
  };
  _engine['SkSkRuntimeEffectExtension|get#makeShaderWithChildren'] = function SkSkRuntimeEffectExtension$124get$35makeShaderWithChildren($this) {
    if ($this == null) dart.nullFailed(I[231], 3615, 13, "#this");
    return dart.fn((uniforms, children) => {
      if (uniforms == null) dart.nullFailed(I[231], 3616, 25, "uniforms");
      if (children == null) dart.nullFailed(I[231], 3616, 49, "children");
      return _engine['SkSkRuntimeEffectExtension|makeShaderWithChildren']($this, uniforms, children);
    }, T$13.SkFloat32ListAndListOfObjectNToSkShaderN());
  };
  _engine.getCanvasKitJsFileNames = function getCanvasKitJsFileNames(variant) {
    if (variant == null) dart.nullFailed(I[231], 3627, 55, "variant");
    switch (variant) {
      case C[839] || CT.C839:
        {
          return (() => {
            let t$361126 = G.JSArrayOfString().of([]);
            if (dart.test(_engine._enableCanvasKitChromiumInAutoMode)) t$361126.push("chromium/canvaskit.js");
            t$361126.push("canvaskit.js");
            return t$361126;
          })();
        }
      case C[840] || CT.C840:
        {
          return G.JSArrayOfString().of(["canvaskit.js"]);
        }
      case C[841] || CT.C841:
        {
          return G.JSArrayOfString().of(["chromium/canvaskit.js"]);
        }
      default:
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
    }
  };
  _engine.canvasKitWasmModuleUrl = function canvasKitWasmModuleUrl(file, canvasKitBase) {
    if (file == null) dart.nullFailed(I[231], 3646, 38, "file");
    if (canvasKitBase == null) dart.nullFailed(I[231], 3646, 51, "canvasKitBase");
    return dart.notNull(canvasKitBase) + dart.notNull(file);
  };
  _engine.downloadCanvasKit = function downloadCanvasKit() {
    return async.async(T$10.CanvasKit(), function* downloadCanvasKit() {
      let canvasKitModule = (yield _engine._downloadOneOf(_engine._canvasKitJsUrls));
      let canvasKit = T$10.CanvasKit()[_as](yield js_interop['JSPromiseToFuture|get#toDart'](T$.Object(), T$3.JSObject()[_as](canvasKitModule.default({locateFile: _engine.createLocateFileCallback(C[1051] || CT.C1051)}))));
      if (dart.test(_engine['SkParagraphBuilderNamespaceExtension|RequiresClientICU'](js_util.getProperty(T$10.SkParagraphBuilderNamespace(), canvasKit, "ParagraphBuilder"))) && !dart.test(_engine.browserSupportsCanvaskitChromium)) {
        dart.throw(core.Exception.new("The CanvasKit variant you are using only works on Chromium browsers. Please use a different CanvasKit variant, or use a Chromium browser."));
      }
      return canvasKit;
    });
  };
  _engine._downloadOneOf = function _downloadOneOf(urls) {
    if (urls == null) dart.nullFailed(I[231], 3674, 57, "urls");
    return async.async(T$13.CanvasKitModule(), function* _downloadOneOf() {
      for (let url of urls) {
        try {
          return yield _engine._downloadCanvasKitJs(url);
        } catch (t$36$35e) {
          let _ = dart.getThrown(t$36$35e);
          if (T$.Object()[_is](_)) {
            continue;
          } else
            throw t$36$35e;
        }
      }
      dart.throw(core.Exception.new("Failed to download any of the following CanvasKit URLs: " + dart.str(urls)));
    });
  };
  _engine._resolveUrl = function _resolveUrl(url) {
    if (url == null) dart.nullFailed(I[231], 3689, 27, "url");
    return js_interop['JSStringToString|get#toDart'](T$.String()[_as](_engine.createDomURL(url, _engine['DomNodeExtension|get#baseUri'](js_util.getProperty(T$9.DomDocument(), dart.jsInteropNullCheck(dart.global.window), "document"))).toString()));
  };
  _engine._downloadCanvasKitJs = function _downloadCanvasKitJs(url) {
    if (url == null) dart.nullFailed(I[231], 3697, 53, "url");
    return async.async(T$13.CanvasKitModule(), function* _downloadCanvasKitJs() {
      let scriptUrl = _engine.createTrustedScriptUrl(_engine._resolveUrl(url));
      return T$13.CanvasKitModule()[_as](yield js_interop['JSPromiseToFuture|get#toDart'](T$3.JSObject(), js_interop.importModule(scriptUrl)));
    });
  };
  _engine._computeIdentityTransform = function _computeIdentityTransform() {
    let result = _native_typed_data.NativeFloat32List.new(20);
    let translationIndices = C[1052] || CT.C1052;
    for (let i of translationIndices) {
      result[$_set](i, 1.0);
    }
    _engine._identityTransform = result;
    return result;
  };
  _engine.createSkColorFilterFromColorAndBlendMode = function createSkColorFilterFromColorAndBlendMode(color, blendMode) {
    if (color == null) dart.nullFailed(I[233], 97, 14, "color");
    if (blendMode == null) dart.nullFailed(I[233], 97, 34, "blendMode");
    let filter = _engine['SkColorFilterNamespaceExtension|MakeBlend'](js_util.getProperty(T$9.SkColorFilterNamespace(), _engine.canvasKit, "ColorFilter"), _engine.toSharedSkColor1(color), _engine.toSkBlendMode(blendMode));
    if (filter == null) {
      return _engine['SkColorFilterNamespaceExtension|MakeMatrix'](js_util.getProperty(T$9.SkColorFilterNamespace(), _engine.canvasKit, "ColorFilter"), _engine._identityTransform);
    }
    return filter;
  };
  _engine.createCkColorFilter = function createCkColorFilter(colorFilter) {
    if (colorFilter == null) dart.nullFailed(I[233], 245, 54, "colorFilter");
    switch (colorFilter.type) {
      case C[849] || CT.C849:
        {
          if (colorFilter.color == null || colorFilter.blendMode == null) {
            return null;
          }
          return new _engine.CkBlendModeColorFilter.new(dart.nullCheck(colorFilter.color), dart.nullCheck(colorFilter.blendMode));
        }
      case C[850] || CT.C850:
        {
          if (colorFilter.matrix == null) {
            return null;
          }
          if (!(dart.nullCheck(colorFilter.matrix)[$length] === 20)) dart.assertFailed("Color Matrix must have 20 entries.", I[233], 256, 16, "colorFilter.matrix!.length == 20");
          return new _engine.CkMatrixColorFilter.new(dart.nullCheck(colorFilter.matrix));
        }
      case C[851] || CT.C851:
        {
          return C[1053] || CT.C1053;
        }
      case C[852] || CT.C852:
        {
          return C[1054] || CT.C1054;
        }
      default:
        {
          dart.throw(new core.StateError.new("Unknown mode " + dart.str(colorFilter) + ".type for ColorFilter."));
        }
    }
  };
  _engine.skiaInstantiateImageCodec = function skiaInstantiateImageCodec(list, targetWidth = null, targetHeight = null) {
    if (list == null) dart.nullFailed(I[237], 9, 56, "list");
    if (dart.test(_engine.browserSupportsImageDecoder) && targetWidth == null && targetHeight == null) {
      return _engine.CkBrowserImageDecoder.create({data: list, debugSource: "encoded image bytes"});
    } else {
      return new _engine.CkAnimatedImage.decodeFromBytes(list, "encoded image bytes", {targetWidth: targetWidth, targetHeight: targetHeight});
    }
  };
  _engine.skiaDecodeImageFromPixels = function skiaDecodeImageFromPixels(pixels, width, height, format, callback, opts) {
    if (pixels == null) dart.nullFailed(I[237], 23, 13, "pixels");
    if (width == null) dart.nullFailed(I[237], 24, 7, "width");
    if (height == null) dart.nullFailed(I[237], 25, 7, "height");
    if (format == null) dart.nullFailed(I[237], 26, 18, "format");
    if (callback == null) dart.nullFailed(I[237], 27, 27, "callback");
    let rowBytes = opts && 'rowBytes' in opts ? opts.rowBytes : null;
    let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
    let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
    let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
    if (allowUpscaling == null) dart.nullFailed(I[237], 31, 8, "allowUpscaling");
    if (targetWidth != null) {
      if (!(dart.test(allowUpscaling) || dart.notNull(targetWidth) <= dart.notNull(width))) dart.assertFailed(null, I[237], 34, 12, "allowUpscaling || targetWidth <= width");
    }
    if (targetHeight != null) {
      if (!(dart.test(allowUpscaling) || dart.notNull(targetHeight) <= dart.notNull(height))) dart.assertFailed(null, I[237], 37, 12, "allowUpscaling || targetHeight <= height");
    }
    async.Timer.run(dart.fn(() => {
      let t$361128;
      let skImage = _engine['CanvasKitExtension|MakeImage'](_engine.canvasKit, _engine.SkImageInfo.new({width: width[$toDouble](), height: height[$toDouble](), colorType: format == ui.PixelFormat.rgba8888 ? js_util.getProperty(T$9.SkColorType(), js_util.getProperty(T$9.SkColorTypeEnum(), _engine.canvasKit, "ColorType"), "RGBA_8888") : js_util.getProperty(T$9.SkColorType(), js_util.getProperty(T$9.SkColorTypeEnum(), _engine.canvasKit, "ColorType"), "BGRA_8888"), alphaType: js_util.getProperty(T$9.SkAlphaType(), js_util.getProperty(T$9.SkAlphaTypeEnum(), _engine.canvasKit, "AlphaType"), "Premul"), colorSpace: dart.jsInteropNullCheck(dart.global.window.flutterCanvasKit.ColorSpace.SRGB)}), pixels, (t$361128 = rowBytes, t$361128 == null ? 4 * dart.notNull(width) : t$361128)[$toDouble]());
      if (skImage == null) {
        _engine['DomConsoleExtension|warn'](js_util.getProperty(T$9.DomConsole(), dart.jsInteropNullCheck(dart.global.window), "console"), "Failed to create image from pixels.");
        return;
      }
      if (targetWidth != null || targetHeight != null) {
        if (dart.test(_engine.validUpscale(allowUpscaling, targetWidth, targetHeight, width, height))) {
          return callback(_engine.scaleImage(skImage, targetWidth, targetHeight));
        }
      }
      return callback(new _engine.CkImage.new(skImage));
    }, T$.VoidTovoid()));
  };
  _engine.validUpscale = function validUpscale(allowUpscaling, targetWidth, targetHeight, originalWidth, originalHeight) {
    if (allowUpscaling == null) dart.nullFailed(I[237], 71, 24, "allowUpscaling");
    if (originalWidth == null) dart.nullFailed(I[237], 71, 81, "originalWidth");
    if (originalHeight == null) dart.nullFailed(I[237], 71, 100, "originalHeight");
    if (dart.test(allowUpscaling)) {
      return true;
    }
    let targetWidthFits = null;
    let targetHeightFits = null;
    if (targetWidth != null) {
      targetWidthFits = dart.notNull(targetWidth) <= dart.notNull(originalWidth);
    } else {
      targetWidthFits = true;
    }
    if (targetHeight != null) {
      targetHeightFits = dart.notNull(targetHeight) <= dart.notNull(originalHeight);
    } else {
      targetHeightFits = true;
    }
    return dart.test(targetWidthFits) && dart.test(targetHeightFits);
  };
  _engine.scaleImage = function scaleImage(image, targetWidth, targetHeight) {
    if (image == null) dart.nullFailed(I[237], 101, 28, "image");
    if (!(targetWidth != null || targetHeight != null)) dart.assertFailed(null, I[237], 102, 12, "targetWidth != null || targetHeight != null");
    if (targetWidth != null && dart.notNull(targetWidth) <= 0) {
      targetWidth = null;
    }
    if (targetHeight != null && dart.notNull(targetHeight) <= 0) {
      targetHeight = null;
    }
    if (targetWidth == null && targetHeight != null) {
      targetWidth = (dart.notNull(targetHeight) * (dart.notNull(_engine['SkImageExtension|width'](image)) / dart.notNull(_engine['SkImageExtension|height'](image))))[$round]();
    } else if (targetHeight == null && targetWidth != null) {
      targetHeight = (dart.notNull(targetWidth) / (dart.notNull(_engine['SkImageExtension|width'](image)) / dart.notNull(_engine['SkImageExtension|height'](image))))[$truncate]();
    }
    if (!(targetWidth != null)) dart.assertFailed(null, I[237], 115, 12, "targetWidth != null");
    if (!(targetHeight != null)) dart.assertFailed(null, I[237], 116, 12, "targetHeight != null");
    let recorder = new _engine.CkPictureRecorder.new();
    let canvas = recorder.beginRecording(ui.Rect.largest);
    let paint = new _engine.CkPaint.new();
    canvas.drawImageRect(new _engine.CkImage.new(image), new ui.Rect.fromLTWH(0.0, 0.0, _engine['SkImageExtension|width'](image), _engine['SkImageExtension|height'](image)), new ui.Rect.fromLTWH(0.0, 0.0, dart.nullCheck(targetWidth)[$toDouble](), dart.nullCheck(targetHeight)[$toDouble]()), paint);
    paint.dispose();
    let picture = recorder.endRecording();
    let finalImage = picture.toImageSync(targetWidth, targetHeight);
    let ckImage = T$9.CkImage()[_as](finalImage);
    return ckImage;
  };
  _engine.skiaInstantiateWebImageCodec = function skiaInstantiateWebImageCodec(url, chunkCallback) {
    if (url == null) dart.nullFailed(I[237], 156, 12, "url");
    return async.async(T$9.Codec(), function* skiaInstantiateWebImageCodec() {
      let list = (yield _engine.fetchImage(url, chunkCallback));
      if (dart.test(_engine.browserSupportsImageDecoder)) {
        return _engine.CkBrowserImageDecoder.create({data: list, debugSource: url});
      } else {
        return new _engine.CkAnimatedImage.decodeFromBytes(list, url);
      }
    });
  };
  _engine.fetchImage = function fetchImage(url, chunkCallback) {
    if (url == null) dart.nullFailed(I[237], 166, 37, "url");
    return async.async(T$.Uint8List(), function* fetchImage() {
      try {
        let response = (yield _engine.httpFetch(url));
        let contentLength = response.contentLength;
        if (!dart.test(response.hasPayload)) {
          dart.throw(new _engine.ImageCodecException.new("Failed to load network image." + "\n" + "Image URL: " + dart.str(url) + "\n" + "Server response code: " + dart.str(response.status)));
        }
        if (chunkCallback != null && contentLength != null) {
          return _engine.readChunked(response.payload, contentLength, chunkCallback);
        } else {
          return yield _engine['HttpFetchResponseExtension|asUint8List'](response);
        }
      } catch (t$36$35e) {
        let _ = dart.getThrown(t$36$35e);
        if (T$13.HttpFetchError()[_is](_)) {
          dart.throw(new _engine.ImageCodecException.new("Failed to load network image." + "\n" + "Image URL: " + dart.str(url) + "\n" + "Trying to load an image from another domain? Find answers at:\n" + "https://flutter.dev/docs/development/platform-integration/web-images"));
        } else
          throw t$36$35e;
      }
    });
  };
  _engine.readChunked = function readChunked(payload, contentLength, chunkCallback) {
    if (payload == null) dart.nullFailed(I[237], 197, 48, "payload");
    if (contentLength == null) dart.nullFailed(I[237], 197, 61, "contentLength");
    if (chunkCallback == null) dart.nullFailed(I[237], 197, 107, "chunkCallback");
    return async.async(T$.Uint8List(), function* readChunked() {
      let result = _engine.createUint8ArrayFromLength(contentLength);
      let position = 0;
      let cumulativeBytesLoaded = 0;
      yield payload.read(T$3.NativeUint8List(), dart.fn(chunk => {
        if (chunk == null) dart.nullFailed(I[237], 201, 50, "chunk");
        cumulativeBytesLoaded = cumulativeBytesLoaded + dart.notNull(js_interop['JSNumberToNumber|get#toDartInt'](js_util.getProperty(T$.double(), chunk, "length")));
        chunkCallback(cumulativeBytesLoaded, contentLength);
        result.set(chunk, js_interop['NumToJSExtension|get#toJS'](position));
        position = position + dart.notNull(js_interop['JSNumberToNumber|get#toDartInt'](js_util.getProperty(T$.double(), chunk, "length")));
      }, T$13.NativeUint8ListTovoid()));
      return js_interop['JSUint8ArrayToUint8List|get#toDart'](result);
    });
  };
  _engine.readPixelsFromVideoFrame = function readPixelsFromVideoFrame(videoFrame, format) {
    if (videoFrame == null) dart.nullFailed(I[240], 77, 54, "videoFrame");
    if (format == null) dart.nullFailed(I[240], 77, 85, "format");
    return async.async(T$0.ByteData(), function* readPixelsFromVideoFrame() {
      if (format == ui.ImageByteFormat.png) {
        let png = (yield _engine.encodeVideoFrameAsPng(videoFrame));
        return png[$buffer][$asByteData]();
      }
      let pixels = (yield _engine.readVideoFramePixelsUnmodified(videoFrame));
      if (dart.test(_engine._shouldReadPixelsUnmodified(videoFrame, format))) {
        return pixels[$asByteData]();
      }
      let isBgrx = _engine['VideoFrameExtension|get#format'](videoFrame) === "BGRX";
      let isBgrFrame = _engine['VideoFrameExtension|get#format'](videoFrame) === "BGRA" || isBgrx;
      if (isBgrFrame) {
        if (format == ui.ImageByteFormat.rawStraightRgba || isBgrx) {
          _engine._bgrToStraightRgba(pixels, isBgrx);
          return pixels[$asByteData]();
        } else if (format == ui.ImageByteFormat.rawRgba) {
          _engine._bgrToRawRgba(pixels);
          return pixels[$asByteData]();
        }
      }
      return pixels[$asByteData]();
    });
  };
  _engine._bgrToStraightRgba = function _bgrToStraightRgba(pixels, isBgrx) {
    if (pixels == null) dart.nullFailed(I[240], 110, 36, "pixels");
    if (isBgrx == null) dart.nullFailed(I[240], 110, 49, "isBgrx");
    let pixelBytes = pixels[$asUint8List]();
    for (let i = 0; i < dart.notNull(pixelBytes[$length]); i = i + 4) {
      let b = pixelBytes[$_get](i);
      let r = pixelBytes[$_get](i + 2);
      pixelBytes[$_set](i, r);
      pixelBytes[$_set](i + 2, b);
      if (dart.test(isBgrx)) {
        pixelBytes[$_set](i + 3, 255);
      }
    }
  };
  _engine._premultiply = function _premultiply(value, alpha) {
    if (value == null) dart.nullFailed(I[240], 132, 22, "value");
    if (alpha == null) dart.nullFailed(I[240], 132, 33, "alpha");
    if (alpha === 255) {
      return value;
    }
    return (dart.notNull(value) * dart.notNull(alpha) * 257 + 32896)[$rightShift](16);
  };
  _engine._bgrToRawRgba = function _bgrToRawRgba(pixels) {
    if (pixels == null) dart.nullFailed(I[240], 142, 31, "pixels");
    let pixelBytes = pixels[$asUint8List]();
    for (let i = 0; i < dart.notNull(pixelBytes[$length]); i = i + 4) {
      let a = pixelBytes[$_get](i + 3);
      let r = _engine._premultiply(pixelBytes[$_get](i + 2), a);
      let g = _engine._premultiply(pixelBytes[$_get](i + 1), a);
      let b = _engine._premultiply(pixelBytes[$_get](i), a);
      pixelBytes[$_set](i, r);
      pixelBytes[$_set](i + 1, g);
      pixelBytes[$_set](i + 2, b);
    }
  };
  _engine._shouldReadPixelsUnmodified = function _shouldReadPixelsUnmodified(videoFrame, format) {
    if (videoFrame == null) dart.nullFailed(I[240], 156, 45, "videoFrame");
    if (format == null) dart.nullFailed(I[240], 156, 76, "format");
    if (format == ui.ImageByteFormat.rawUnmodified) {
      return true;
    }
    let isRgbFrame = _engine['VideoFrameExtension|get#format'](videoFrame) === "RGBA" || _engine['VideoFrameExtension|get#format'](videoFrame) === "RGBX";
    return format == ui.ImageByteFormat.rawStraightRgba && isRgbFrame;
  };
  _engine.readVideoFramePixelsUnmodified = function readVideoFramePixelsUnmodified(videoFrame) {
    if (videoFrame == null) dart.nullFailed(I[240], 167, 62, "videoFrame");
    return async.async(T$0.ByteBuffer(), function* readVideoFramePixelsUnmodified() {
      let size = _engine['VideoFrameExtension|allocationSize'](videoFrame)[$toInt]();
      let destination = _engine.createUint8ArrayFromLength(size);
      let copyPromise = _engine['VideoFrameExtension|copyTo'](videoFrame, destination);
      yield _engine.promiseToFuture(T$.void(), copyPromise);
      return js_interop['JSUint8ArrayToUint8List|get#toDart'](destination)[$buffer];
    });
  };
  _engine.encodeVideoFrameAsPng = function encodeVideoFrameAsPng(videoFrame) {
    if (videoFrame == null) dart.nullFailed(I[240], 181, 52, "videoFrame");
    return async.async(T$.Uint8List(), function* encodeVideoFrameAsPng() {
      let width = _engine['VideoFrameExtension|get#displayWidth'](videoFrame)[$toInt]();
      let height = _engine['VideoFrameExtension|get#displayHeight'](videoFrame)[$toInt]();
      let canvas = _engine.createDomCanvasElement({width: width, height: height});
      let ctx = _engine['DomCanvasElementExtension|get#context2D'](canvas);
      _engine['DomCanvasRenderingContext2DExtension|drawImage'](ctx, videoFrame, 0, 0);
      let pngBase64 = _engine['DomCanvasElementExtension|toDataURL'](canvas)[$substring]("data:image/png;base64,".length);
      return convert.base64.decode(pngBase64);
    });
  };
  _engine.computePlatformViewBounds = function computePlatformViewBounds(params) {
    if (params == null) dart.nullFailed(I[251], 110, 54, "params");
    let currentClipBounds = ui.Rect.largest;
    let currentTransform = new _engine.Matrix4.identity();
    for (let mutator of params.mutators.reversed) {
      switch (mutator.type) {
        case C[827] || CT.C827:
          {
            let transformedClipBounds = _engine.transformRectWithMatrix(currentTransform, dart.nullCheck(mutator.rect));
            currentClipBounds = currentClipBounds.intersect(transformedClipBounds);
            break;
          }
        case C[828] || CT.C828:
          {
            let transformedClipBounds = _engine.transformRectWithMatrix(currentTransform, dart.nullCheck(mutator.rrect).outerRect);
            currentClipBounds = currentClipBounds.intersect(transformedClipBounds);
            break;
          }
        case C[829] || CT.C829:
          {
            let transformedClipBounds = _engine.transformRectWithMatrix(currentTransform, dart.nullCheck(mutator.path).getBounds());
            currentClipBounds.intersect(transformedClipBounds);
            break;
          }
        case C[826] || CT.C826:
          {
            currentTransform = currentTransform.multiplied(dart.nullCheck(mutator.matrix));
            break;
          }
        case C[830] || CT.C830:
          {
            continue;
          }
        default:
          dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
      }
    }
    let rawBounds = new ui.Rect.fromLTWH(params.offset.dx, params.offset.dy, params.size.width, params.size.height);
    let transformedBounds = _engine.transformRectWithMatrix(currentTransform, rawBounds);
    return transformedBounds.intersect(currentClipBounds);
  };
  _engine.createOptimizedRendering = function createOptimizedRendering(pictures, platformViews, paramsForViews) {
    if (pictures == null) dart.nullFailed(I[251], 154, 19, "pictures");
    if (platformViews == null) dart.nullFailed(I[251], 155, 13, "platformViews");
    if (paramsForViews == null) dart.nullFailed(I[251], 156, 32, "paramsForViews");
    if (!(pictures[$length] === dart.notNull(platformViews[$length]) + 1)) dart.assertFailed(null, I[251], 158, 10, "pictures.length == platformViews.length + 1");
    let result = new _engine.Rendering.new();
    let currentRenderCanvas = new _engine.RenderingRenderCanvas.new();
    if (!dart.test(pictures[$_get](0).cullRect.isEmpty)) {
      currentRenderCanvas.add(pictures[$_get](0));
    }
    for (let i = 0; i < dart.notNull(platformViews[$length]); i = i + 1) {
      let platformView = new _engine.RenderingPlatformView.new(platformViews[$_get](i));
      if (dart.test(_engine.PlatformViewManager.instance.isVisible(platformViews[$_get](i)))) {
        let platformViewBounds = _engine.computePlatformViewBounds(dart.nullCheck(paramsForViews[$_get](platformViews[$_get](i))));
        if (dart.test(_engine.debugOverlayOptimizationBounds)) {
          platformView.debugComputedBounds = platformViewBounds;
        }
        let intersectsWithCurrentPictures = false;
        for (let picture of currentRenderCanvas.pictures) {
          if (dart.test(picture.cullRect.overlaps(platformViewBounds))) {
            intersectsWithCurrentPictures = true;
            break;
          }
        }
        if (intersectsWithCurrentPictures) {
          result.add(currentRenderCanvas);
          currentRenderCanvas = new _engine.RenderingRenderCanvas.new();
        }
      }
      result.add(platformView);
      if (!dart.test(pictures[$_get](i + 1).cullRect.isEmpty)) {
        currentRenderCanvas.add(pictures[$_get](i + 1));
      }
    }
    if (dart.test(currentRenderCanvas.pictures[$isNotEmpty])) {
      result.add(currentRenderCanvas);
    }
    return result;
  };
  _engine._computeEffectiveFontFamily = function _computeEffectiveFontFamily(fontFamily) {
    return dart.test(ui_web.debugEmulateFlutterTesterEnvironment) && !dart.test(_engine._testFonts[$contains](fontFamily)) ? _engine._testFonts[$first] : fontFamily;
  };
  _engine.toSkFontStyle = function toSkFontStyle(fontWeight, fontStyle) {
    let style = {};
    if (fontWeight != null) {
      style.weight = _engine.toSkFontWeight(fontWeight);
    }
    if (fontStyle != null) {
      style.slant = _engine.toSkFontSlant(fontStyle);
    }
    return style;
  };
  _engine._computeCombinedFontFamilies = function _computeCombinedFontFamilies(fontFamily, fontFamilyFallback = null) {
    let fontFamilies = G.JSArrayOfString().of([]);
    if (fontFamily != null) {
      fontFamilies[$add](fontFamily);
    }
    if (fontFamilyFallback != null && !dart.test(fontFamilyFallback[$every](dart.fn(font => {
      if (font == null) dart.nullFailed(I[262], 1228, 41, "font");
      return fontFamily == font;
    }, T$.StringTobool())))) {
      fontFamilies[$addAll](fontFamilyFallback);
    }
    fontFamilies[$addAll](dart.nullCheck(_engine.renderer.fontCollection.fontFallbackManager).globalFontFallbacks);
    return fontFamilies;
  };
  _engine['SegmentationCacheExtensions|getCacheForText'] = function SegmentationCacheExtensions$124getCacheForText($this, text) {
    if ($this == null) dart.nullFailed(I[263], 55, 41, "#this");
    if (text == null) dart.nullFailed(I[263], 55, 64, "text");
    if (text.length <= dart.notNull(_engine.kSmallParagraphCacheSpec.maxTextLength)) {
      return $this.small;
    }
    if (text.length <= dart.notNull(_engine.kMediumParagraphCacheSpec.maxTextLength)) {
      return $this.medium;
    }
    if (text.length <= dart.notNull(_engine.kLargeParagraphCacheSpec.maxTextLength)) {
      return $this.large;
    }
    return null;
  };
  _engine['SegmentationCacheExtensions|get#getCacheForText'] = function SegmentationCacheExtensions$124get$35getCacheForText($this) {
    if ($this == null) dart.nullFailed(I[263], 55, 41, "#this");
    return dart.fn(text => {
      if (text == null) dart.nullFailed(I[263], 55, 64, "text");
      return _engine['SegmentationCacheExtensions|getCacheForText']($this, text);
    }, T$13.StringToLruCacheNOfString$RecOf__());
  };
  _engine['SegmentationCacheExtensions|clear'] = function SegmentationCacheExtensions$124clear($this) {
    if ($this == null) dart.nullFailed(I[263], 69, 8, "#this");
    $this.small.clear();
    $this.medium.clear();
    $this.large.clear();
  };
  _engine['SegmentationCacheExtensions|get#clear'] = function SegmentationCacheExtensions$124get$35clear($this) {
    if ($this == null) dart.nullFailed(I[263], 69, 8, "#this");
    return dart.fn(() => _engine['SegmentationCacheExtensions|clear']($this), T$.VoidTovoid());
  };
  _engine.injectClientICU = function injectClientICU(builder) {
    if (builder == null) dart.nullFailed(I[263], 80, 41, "builder");
    if (!dart.test(_engine['SkParagraphBuilderNamespaceExtension|RequiresClientICU'](js_util.getProperty(T$10.SkParagraphBuilderNamespace(), _engine.canvasKit, "ParagraphBuilder")))) dart.assertFailed("This method should only be used with the CanvasKit Chromium variant.", I[263], 82, 5, "canvasKit.ParagraphBuilder.RequiresClientICU()");
    let result = _engine.segmentText(_engine['SkParagraphBuilderExtension|getText'](builder));
    _engine['SkParagraphBuilderExtension|setWordsUtf16'](builder, result.words);
    _engine['SkParagraphBuilderExtension|setGraphemeBreaksUtf16'](builder, result.graphemes);
    _engine['SkParagraphBuilderExtension|setLineBreaksUtf16'](builder, result.breaks);
  };
  _engine.segmentText = function segmentText(text) {
    let t$361133, t$361133$, t$361134, t$361133$0;
    if (text == null) dart.nullFailed(I[263], 95, 39, "text");
    let cache = _engine['SegmentationCacheExtensions|getCacheForText'](_engine.segmentationCache, text);
    let cachedResult = (t$361133 = cache, t$361133 == null ? null : t$361133._get(text));
    let result = null;
    if (cachedResult != null) {
      result = cachedResult;
    } else {
      result = (t$361134 = _engine.fragmentUsingIntlSegmenter(text, _engine.IntlSegmenterGranularity.word), t$361133$ = _engine.fragmentUsingIntlSegmenter(text, _engine.IntlSegmenterGranularity.grapheme), dart.recordLiteral("3;breaks,graphemes,words", 0, ["breaks", "graphemes", "words"], [_engine.fragmentUsingV8LineBreaker(text), t$361133$, t$361134]));
    }
    t$361133$0 = cache;
    t$361133$0 == null ? null : t$361133$0.cache(text, result);
    return result;
  };
  _engine.fragmentUsingIntlSegmenter = function fragmentUsingIntlSegmenter(text, granularity) {
    if (text == null) dart.nullFailed(I[263], 130, 10, "text");
    if (granularity == null) dart.nullFailed(I[263], 131, 28, "granularity");
    let segmenter = dart.nullCheck(_engine._intlSegmenters[$_get](granularity));
    let iterator = _engine['DomSegmentsExtension|iterator'](_engine['DomSegmenterExtension|segment'](segmenter, text));
    let breaks = G.JSArrayOfint().of([]);
    while (dart.test(iterator.moveNext())) {
      breaks[$add](_engine['DomSegmentExtension|get#index'](iterator.current));
    }
    breaks[$add](text.length);
    return _native_typed_data.NativeUint32List.fromList(breaks);
  };
  _engine.fragmentUsingV8LineBreaker = function fragmentUsingV8LineBreaker(text) {
    if (text == null) dart.nullFailed(I[263], 150, 46, "text");
    let fragments = _engine.breakLinesUsingV8BreakIterator(text, js_interop['StringToJSString|get#toJS'](text), _engine._v8LineBreaker);
    let size = (dart.notNull(fragments[$length]) + 1) * 2;
    let typedArray = _native_typed_data.NativeUint32List.new(size);
    typedArray[$_set](0, 0);
    typedArray[$_set](1, 0);
    for (let i = 0; i < dart.notNull(fragments[$length]); i = i + 1) {
      let fragment = fragments[$_get](i);
      let uint32Index = 2 + i * 2;
      typedArray[$_set](uint32Index, fragment.end);
      typedArray[$_set](uint32Index + 1, fragment.type == _engine.LineBreakType.mandatory ? 1 : 0);
    }
    return typedArray;
  };
  _engine.makeFreshSkColor = function makeFreshSkColor(color) {
    if (color == null) dart.nullFailed(I[264], 21, 39, "color");
    let result = _native_typed_data.NativeFloat32List.new(4);
    result[$_set](0, dart.notNull(color.red) / 255.0);
    result[$_set](1, dart.notNull(color.green) / 255.0);
    result[$_set](2, dart.notNull(color.blue) / 255.0);
    result[$_set](3, dart.notNull(color.alpha) / 255.0);
    return result;
  };
  _engine.fromPositionWithAffinity = function fromPositionWithAffinity(positionWithAffinity) {
    if (positionWithAffinity == null) dart.nullFailed(I[264], 30, 57, "positionWithAffinity");
    let affinity = ui.TextAffinity.values[$_get](_engine['SkAffinityExtension|get#value'](js_util.getProperty(T$13.SkAffinity(), positionWithAffinity, "affinity"))[$toInt]());
    return new ui.TextPosition.new({offset: _engine['SkTextPositionExtnsion|get#pos'](positionWithAffinity)[$toInt](), affinity: affinity});
  };
  _engine.computeSkShadowBounds = function computeSkShadowBounds(path, elevation, devicePixelRatio, matrix) {
    if (path == null) dart.nullFailed(I[264], 85, 10, "path");
    if (elevation == null) dart.nullFailed(I[264], 86, 10, "elevation");
    if (devicePixelRatio == null) dart.nullFailed(I[264], 87, 10, "devicePixelRatio");
    if (matrix == null) dart.nullFailed(I[264], 88, 11, "matrix");
    let pathBounds = path.getBounds();
    if (elevation === 0) {
      return pathBounds;
    }
    let isComplex = !dart.test(matrix.isIdentityOrTranslation());
    if (isComplex) {
      pathBounds = matrix.transformRect(pathBounds);
    }
    let left = pathBounds.left;
    let top = pathBounds.top;
    let right = pathBounds.right;
    let bottom = pathBounds.bottom;
    let ambientBlur = _engine.ambientBlurRadius(elevation);
    let spotBlur = 800 * dart.notNull(elevation);
    let spotOffsetX = -dart.notNull(elevation) * 0;
    let spotOffsetY = -dart.notNull(elevation) * -0.75;
    left = dart.notNull(left) - 1 + (spotOffsetX - dart.notNull(ambientBlur) - spotBlur) * dart.notNull(devicePixelRatio);
    top = dart.notNull(top) - 1 + (spotOffsetY - dart.notNull(ambientBlur) - spotBlur) * dart.notNull(devicePixelRatio);
    right = dart.notNull(right) + 1 + (spotOffsetX + dart.notNull(ambientBlur) + spotBlur) * dart.notNull(devicePixelRatio);
    bottom = dart.notNull(bottom) + 1 + (spotOffsetY + dart.notNull(ambientBlur) + spotBlur) * dart.notNull(devicePixelRatio);
    let shadowBounds = new ui.Rect.fromLTRB(left, top, right, bottom);
    if (isComplex) {
      let inverse = new _engine.Matrix4.zero();
      if (inverse.copyInverse(matrix) !== 0.0) {
        return inverse.transformRect(shadowBounds);
      } else {
        return shadowBounds;
      }
    } else {
      return shadowBounds;
    }
  };
  _engine.ambientBlurRadius = function ambientBlurRadius(height) {
    if (height == null) dart.nullFailed(I[264], 146, 33, "height");
    return math.min(T$.double(), dart.notNull(height) * 0.0078125 * 64, 150);
  };
  _engine.drawSkShadow = function drawSkShadow(skCanvas, path, color, elevation, transparentOccluder, devicePixelRatio) {
    let t$361133, t$361133$;
    if (skCanvas == null) dart.nullFailed(I[264], 152, 12, "skCanvas");
    if (path == null) dart.nullFailed(I[264], 153, 10, "path");
    if (color == null) dart.nullFailed(I[264], 154, 12, "color");
    if (elevation == null) dart.nullFailed(I[264], 155, 10, "elevation");
    if (transparentOccluder == null) dart.nullFailed(I[264], 156, 8, "transparentOccluder");
    if (devicePixelRatio == null) dart.nullFailed(I[264], 157, 10, "devicePixelRatio");
    let flags = dart.test(transparentOccluder) ? 5 : 4;
    flags = (flags | 4) >>> 0;
    let inAmbient = color.withAlpha((dart.notNull(color.alpha) * 0.039)[$round]());
    let inSpot = color.withAlpha((dart.notNull(color.alpha) * 0.25)[$round]());
    let inTonalColors = _engine.SkTonalColors.new({ambient: _engine.makeFreshSkColor(inAmbient), spot: _engine.makeFreshSkColor(inSpot)});
    let tonalColors = T$13.SkTonalColors()[_as](_engine.canvasKit.computeTonalColors(inTonalColors));
    _engine['SkCanvasExtension|drawShadow'](skCanvas, path.skiaObject, (t$361133 = _native_typed_data.NativeFloat32List.new(3), (() => {
      t$361133[$_set](2, dart.notNull(devicePixelRatio) * dart.notNull(elevation));
      return t$361133;
    })()), (t$361133$ = _native_typed_data.NativeFloat32List.new(3), (() => {
      t$361133$[$_set](0, 0.0);
      t$361133$[$_set](1, -1.0);
      t$361133$[$_set](2, 1.0);
      return t$361133$;
    })()), 800 / 600, _engine['SkTonalColorsExtension|get#ambient'](tonalColors), _engine['SkTonalColorsExtension|get#spot'](tonalColors), flags[$toDouble]());
  };
  _engine.debugOverrideJsConfiguration = function debugOverrideJsConfiguration(newConfig) {
    if (newConfig != null) {
      _engine._debugConfiguration = _engine.configuration.withOverrides(newConfig);
    } else {
      _engine._debugConfiguration = null;
    }
  };
  _engine['JsFlutterConfigurationExtension|get#assetBase'] = function JsFlutterConfigurationExtension$124get$35assetBase($this) {
    let t$361134;
    if ($this == null) dart.nullFailed(I[268], 358, 15, "#this");
    t$361134 = js_util.getProperty(T$.StringN(), $this, "assetBase");
    return t$361134 == null ? null : js_interop['JSStringToString|get#toDart'](t$361134);
  };
  _engine['JsFlutterConfigurationExtension|get#canvasKitBaseUrl'] = function JsFlutterConfigurationExtension$124get$35canvasKitBaseUrl($this) {
    let t$361135;
    if ($this == null) dart.nullFailed(I[268], 362, 15, "#this");
    t$361135 = js_util.getProperty(T$.StringN(), $this, "canvasKitBaseUrl");
    return t$361135 == null ? null : js_interop['JSStringToString|get#toDart'](t$361135);
  };
  _engine['JsFlutterConfigurationExtension|get#canvasKitVariant'] = function JsFlutterConfigurationExtension$124get$35canvasKitVariant($this) {
    let t$361136;
    if ($this == null) dart.nullFailed(I[268], 366, 15, "#this");
    t$361136 = js_util.getProperty(T$.StringN(), $this, "canvasKitVariant");
    return t$361136 == null ? null : js_interop['JSStringToString|get#toDart'](t$361136);
  };
  _engine['JsFlutterConfigurationExtension|get#canvasKitForceCpuOnly'] = function JsFlutterConfigurationExtension$124get$35canvasKitForceCpuOnly($this) {
    let t$361137;
    if ($this == null) dart.nullFailed(I[268], 370, 13, "#this");
    t$361137 = js_util.getProperty(T$.boolN(), $this, "canvasKitForceCpuOnly");
    return t$361137 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361137);
  };
  _engine['JsFlutterConfigurationExtension|get#canvasKitMaximumSurfaces'] = function JsFlutterConfigurationExtension$124get$35canvasKitMaximumSurfaces($this) {
    let t$361138;
    if ($this == null) dart.nullFailed(I[268], 374, 15, "#this");
    t$361138 = js_util.getProperty(T$9.doubleN(), $this, "canvasKitMaximumSurfaces");
    return t$361138 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361138);
  };
  _engine['JsFlutterConfigurationExtension|get#debugShowSemanticsNodes'] = function JsFlutterConfigurationExtension$124get$35debugShowSemanticsNodes($this) {
    let t$361139;
    if ($this == null) dart.nullFailed(I[268], 379, 13, "#this");
    t$361139 = js_util.getProperty(T$.boolN(), $this, "debugShowSemanticsNodes");
    return t$361139 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361139);
  };
  _engine['JsFlutterConfigurationExtension|get#multiViewEnabled'] = function JsFlutterConfigurationExtension$124get$35multiViewEnabled($this) {
    let t$361140;
    if ($this == null) dart.nullFailed(I[268], 385, 13, "#this");
    t$361140 = js_util.getProperty(T$.boolN(), $this, "multiViewEnabled");
    return t$361140 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361140);
  };
  _engine['JsFlutterConfigurationExtension|get#nonce'] = function JsFlutterConfigurationExtension$124get$35nonce($this) {
    let t$361141;
    if ($this == null) dart.nullFailed(I[268], 389, 15, "#this");
    t$361141 = js_util.getProperty(T$.StringN(), $this, "nonce");
    return t$361141 == null ? null : js_interop['JSStringToString|get#toDart'](t$361141);
  };
  _engine['JsFlutterConfigurationExtension|get#renderer'] = function JsFlutterConfigurationExtension$124get$35renderer($this) {
    let t$361142;
    if ($this == null) dart.nullFailed(I[268], 393, 15, "#this");
    t$361142 = js_util.getProperty(T$.StringN(), $this, "renderer");
    return t$361142 == null ? null : js_interop['JSStringToString|get#toDart'](t$361142);
  };
  _engine['JsFlutterConfigurationExtension|get#fontFallbackBaseUrl'] = function JsFlutterConfigurationExtension$124get$35fontFallbackBaseUrl($this) {
    let t$361143;
    if ($this == null) dart.nullFailed(I[268], 397, 15, "#this");
    t$361143 = js_util.getProperty(T$.StringN(), $this, "fontFallbackBaseUrl");
    return t$361143 == null ? null : js_interop['JSStringToString|get#toDart'](t$361143);
  };
  _engine['JsFlutterConfigurationExtension|get#useColorEmoji'] = function JsFlutterConfigurationExtension$124get$35useColorEmoji($this) {
    let t$361144;
    if ($this == null) dart.nullFailed(I[268], 401, 13, "#this");
    t$361144 = js_util.getProperty(T$.boolN(), $this, "useColorEmoji");
    return t$361144 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361144);
  };
  _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'] = function ObjectToJSAnyExtension$124get$35toJSAnyShallow($this) {
    if ($this == null) dart.nullFailed(I[270], 37, 13, "#this");
    if (dart.test(_engine.isWasm)) {
      return _engine['ObjectToJSAnyExtension|get#toJSAnyDeep']($this);
    } else {
      return $this;
    }
  };
  _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'] = function ObjectToJSAnyExtension$124get$35toJSAnyDeep($this) {
    if ($this == null) dart.nullFailed(I[270], 47, 13, "#this");
    return T$.Object()[_as](js_util.jsify($this));
  };
  _engine['JSAnyToObjectExtension|get#toObjectShallow'] = function JSAnyToObjectExtension$124get$35toObjectShallow($this) {
    if ($this == null) dart.nullFailed(I[270], 53, 14, "#this");
    if (dart.test(_engine.isWasm)) {
      return _engine['JSAnyToObjectExtension|get#toObjectDeep']($this);
    } else {
      return $this;
    }
  };
  _engine['JSAnyToObjectExtension|get#toObjectDeep'] = function JSAnyToObjectExtension$124get$35toObjectDeep($this) {
    if ($this == null) dart.nullFailed(I[270], 63, 14, "#this");
    return dart.nullCheck(js_util.dartify($this));
  };
  _engine['DomWindowExtension|get#devicePixelRatio'] = function DomWindowExtension$124get$35devicePixelRatio($this) {
    if ($this == null) dart.nullFailed(I[270], 86, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "devicePixelRatio"));
  };
  _engine['DomWindowExtension|get#innerHeight'] = function DomWindowExtension$124get$35innerHeight($this) {
    let t$361150;
    if ($this == null) dart.nullFailed(I[270], 93, 15, "#this");
    t$361150 = js_util.getProperty(T$9.doubleN(), $this, "innerHeight");
    return t$361150 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361150);
  };
  _engine['DomWindowExtension|get#innerWidth'] = function DomWindowExtension$124get$35innerWidth($this) {
    let t$361151;
    if ($this == null) dart.nullFailed(I[270], 97, 15, "#this");
    t$361151 = js_util.getProperty(T$9.doubleN(), $this, "innerWidth");
    return t$361151 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361151);
  };
  _engine['DomWindowExtension|fetch'] = function DomWindowExtension$124fetch($this, url) {
    if ($this == null) dart.nullFailed(I[270], 105, 19, "#this");
    if (url == null) dart.nullFailed(I[270], 105, 32, "url");
    dart.throw(new core.UnsupportedError.new("Do not use window.fetch directly. Use httpFetch* family of functions instead."));
  };
  _engine['DomWindowExtension|get#fetch'] = function DomWindowExtension$124get$35fetch($this) {
    if ($this == null) dart.nullFailed(I[270], 105, 19, "#this");
    return dart.fn(url => {
      if (url == null) dart.nullFailed(I[270], 105, 32, "url");
      return _engine['DomWindowExtension|fetch']($this, url);
    }, T$13.StringToFutureOfObjectN());
  };
  _engine['DomWindowExtension|dispatchEvent'] = function DomWindowExtension$124dispatchEvent($this, event) {
    if ($this == null) dart.nullFailed(I[270], 125, 8, "#this");
    if (event == null) dart.nullFailed(I[270], 125, 31, "event");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.dispatchEvent(event)));
  };
  _engine['DomWindowExtension|get#dispatchEvent'] = function DomWindowExtension$124get$35dispatchEvent($this) {
    if ($this == null) dart.nullFailed(I[270], 125, 8, "#this");
    return dart.fn(event => {
      if (event == null) dart.nullFailed(I[270], 125, 31, "event");
      return _engine['DomWindowExtension|dispatchEvent']($this, event);
    }, T$11.DomEventTobool());
  };
  _engine['DomWindowExtension|matchMedia'] = function DomWindowExtension$124matchMedia($this, query) {
    let t$361156;
    if ($this == null) dart.nullFailed(I[270], 129, 21, "#this");
    return T$11.DomMediaQueryList()[_as]($this.matchMedia((t$361156 = query, t$361156 == null ? null : js_interop['StringToJSString|get#toJS'](t$361156))));
  };
  _engine['DomWindowExtension|get#matchMedia'] = function DomWindowExtension$124get$35matchMedia($this) {
    if ($this == null) dart.nullFailed(I[270], 129, 21, "#this");
    return dart.fn(query => _engine['DomWindowExtension|matchMedia']($this, query), T$13.StringNToDomMediaQueryList());
  };
  _engine['DomWindowExtension|getComputedStyle'] = function DomWindowExtension$124getComputedStyle($this, elt, pseudoElt = null) {
    if ($this == null) dart.nullFailed(I[270], 136, 26, "#this");
    if (elt == null) dart.nullFailed(I[270], 136, 54, "elt");
    if (pseudoElt == null) {
      return T$9.DomCSSStyleDeclaration()[_as]($this.getComputedStyle(elt));
    } else {
      return T$9.DomCSSStyleDeclaration()[_as]($this.getComputedStyle(elt, js_interop['StringToJSString|get#toJS'](pseudoElt)));
    }
  };
  _engine['DomWindowExtension|get#getComputedStyle'] = function DomWindowExtension$124get$35getComputedStyle($this) {
    if ($this == null) dart.nullFailed(I[270], 136, 26, "#this");
    return dart.fn((elt, pseudoElt = null) => {
      if (elt == null) dart.nullFailed(I[270], 136, 54, "elt");
      return _engine['DomWindowExtension|getComputedStyle']($this, elt, pseudoElt);
    }, T$13.DomElementAndStringNToDomCSSStyleDeclaration());
  };
  _engine['DomWindowExtension|requestAnimationFrame'] = function DomWindowExtension$124requestAnimationFrame($this, callback) {
    if ($this == null) dart.nullFailed(I[270], 148, 10, "#this");
    if (callback == null) dart.nullFailed(I[270], 148, 65, "callback");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.requestAnimationFrame(js_util._functionToJS1(callback))));
  };
  _engine['DomWindowExtension|get#requestAnimationFrame'] = function DomWindowExtension$124get$35requestAnimationFrame($this) {
    if ($this == null) dart.nullFailed(I[270], 148, 10, "#this");
    return dart.fn(callback => {
      if (callback == null) dart.nullFailed(I[270], 148, 65, "callback");
      return _engine['DomWindowExtension|requestAnimationFrame']($this, callback);
    }, T$13.FnTodouble());
  };
  _engine['DomWindowExtension|get#postMessage'] = function DomWindowExtension$124get$35postMessage($this) {
    if ($this == null) dart.nullFailed(I[270], 156, 8, "#this");
    return dart.fn((message, targetOrigin, messagePorts = null) => {
      if (message == null) dart.nullFailed(I[270], 156, 27, "message");
      if (targetOrigin == null) dart.nullFailed(I[270], 156, 43, "targetOrigin");
      return _engine['DomWindowExtension|postMessage']($this, message, targetOrigin, messagePorts);
    }, T$13.ObjectAndStringAndListNOfDomMessagePortTovoid());
  };
  _engine['DomWindowExtension|postMessage'] = function DomWindowExtension$124postMessage($this, message, targetOrigin, messagePorts = null) {
    if ($this == null) dart.nullFailed(I[270], 156, 8, "#this");
    if (message == null) dart.nullFailed(I[270], 156, 27, "message");
    if (targetOrigin == null) dart.nullFailed(I[270], 156, 43, "targetOrigin");
    if (messagePorts == null) {
      $this.postMessage(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](message), js_interop['StringToJSString|get#toJS'](targetOrigin));
    } else {
      $this.postMessage(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](message), js_interop['StringToJSString|get#toJS'](targetOrigin), js_interop['ListToJSArray|get#toJS'](T$.Object(), messagePorts));
    }
  };
  _engine['DomConsoleExtension|warn'] = function DomConsoleExtension$124warn($this, arg) {
    if ($this == null) dart.nullFailed(I[270], 184, 8, "#this");
    return $this.warn(js_interop['StringToJSString|get#toJS'](dart.toString(arg)));
  };
  _engine['DomConsoleExtension|get#warn'] = function DomConsoleExtension$124get$35warn($this) {
    if ($this == null) dart.nullFailed(I[270], 184, 8, "#this");
    return dart.fn(arg => _engine['DomConsoleExtension|warn']($this, arg), T$.ObjectNTovoid());
  };
  _engine['DomConsoleExtension|error'] = function DomConsoleExtension$124error($this, arg) {
    if ($this == null) dart.nullFailed(I[270], 188, 8, "#this");
    return $this.error(js_interop['StringToJSString|get#toJS'](dart.toString(arg)));
  };
  _engine['DomConsoleExtension|get#error'] = function DomConsoleExtension$124get$35error($this) {
    if ($this == null) dart.nullFailed(I[270], 188, 8, "#this");
    return dart.fn(arg => _engine['DomConsoleExtension|error']($this, arg), T$.ObjectNTovoid());
  };
  _engine['DomConsoleExtension|get#debug'] = function DomConsoleExtension$124get$35debug($this) {
    if ($this == null) dart.nullFailed(I[270], 192, 8, "#this");
    return dart.fn(arg => _engine['DomConsoleExtension|debug']($this, arg), T$.ObjectNTovoid());
  };
  _engine['DomConsoleExtension|debug'] = function DomConsoleExtension$124debug($this, arg) {
    if ($this == null) dart.nullFailed(I[270], 192, 8, "#this");
    return $this.debug(js_interop['StringToJSString|get#toJS'](dart.toString(arg)));
  };
  _engine.createImageBitmap = function createImageBitmap(source, bounds = null) {
    if (source == null) dart.nullFailed(I[270], 216, 48, "source");
    let jsPromise = null;
    if (bounds != null) {
      jsPromise = dart.jsInteropNullCheck(dart.global.createImageBitmap(source, js_interop['NumToJSExtension|get#toJS'](bounds.x), js_interop['NumToJSExtension|get#toJS'](bounds.y), js_interop['NumToJSExtension|get#toJS'](bounds.width), js_interop['NumToJSExtension|get#toJS'](bounds.height)));
    } else {
      jsPromise = dart.jsInteropNullCheck(dart.global.createImageBitmap(source));
    }
    return js_util.promiseToFuture(T$9.DomImageBitmap(), jsPromise);
  };
  _engine['DomNavigatorExtension|get#maxTouchPoints'] = function DomNavigatorExtension$124get$35maxTouchPoints($this) {
    let t$361170;
    if ($this == null) dart.nullFailed(I[270], 237, 15, "#this");
    t$361170 = js_util.getProperty(T$9.doubleN(), $this, "maxTouchPoints");
    return t$361170 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361170);
  };
  _engine['DomNavigatorExtension|get#vendor'] = function DomNavigatorExtension$124get$35vendor($this) {
    if ($this == null) dart.nullFailed(I[270], 241, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "vendor"));
  };
  _engine['DomNavigatorExtension|get#language'] = function DomNavigatorExtension$124get$35language($this) {
    if ($this == null) dart.nullFailed(I[270], 245, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "language"));
  };
  _engine['DomNavigatorExtension|get#platform'] = function DomNavigatorExtension$124get$35platform($this) {
    let t$361173;
    if ($this == null) dart.nullFailed(I[270], 249, 15, "#this");
    t$361173 = js_util.getProperty(T$.StringN(), $this, "platform");
    return t$361173 == null ? null : js_interop['JSStringToString|get#toDart'](t$361173);
  };
  _engine['DomNavigatorExtension|get#userAgent'] = function DomNavigatorExtension$124get$35userAgent($this) {
    if ($this == null) dart.nullFailed(I[270], 253, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "userAgent"));
  };
  _engine['DomNavigatorExtension|get#languages'] = function DomNavigatorExtension$124get$35languages($this) {
    let t$361175;
    if ($this == null) dart.nullFailed(I[270], 257, 21, "#this");
    t$361175 = js_util.getProperty(T$13.JSArrayNOfObjectN(), $this, "languages");
    return t$361175 == null ? null : js_interop['JSArrayToList|get#toDart'](T$.ObjectN(), t$361175)[$map](T$.String(), dart.fn(any => js_interop['JSStringToString|get#toDart'](T$.String()[_as](dart.nullCheck(any))), T$.ObjectNToString()))[$toList]();
  };
  _engine['DomDocumentExtension|querySelector'] = function DomDocumentExtension$124querySelector($this, selectors) {
    if ($this == null) dart.nullFailed(I[270], 271, 15, "#this");
    if (selectors == null) dart.nullFailed(I[270], 271, 36, "selectors");
    return T$9.DomElementN()[_as]($this.querySelector(js_interop['StringToJSString|get#toJS'](selectors)));
  };
  _engine['DomDocumentExtension|get#querySelector'] = function DomDocumentExtension$124get$35querySelector($this) {
    if ($this == null) dart.nullFailed(I[270], 271, 15, "#this");
    return dart.fn(selectors => {
      if (selectors == null) dart.nullFailed(I[270], 271, 36, "selectors");
      return _engine['DomDocumentExtension|querySelector']($this, selectors);
    }, T$13.StringToDomElementN());
  };
  _engine['DomDocumentExtension|get#querySelectorAll'] = function DomDocumentExtension$124get$35querySelectorAll($this) {
    if ($this == null) dart.nullFailed(I[270], 275, 24, "#this");
    return dart.fn(selectors => {
      if (selectors == null) dart.nullFailed(I[270], 275, 48, "selectors");
      return _engine['DomDocumentExtension|querySelectorAll']($this, selectors);
    }, T$13.StringToIterableOfDomElement());
  };
  _engine['DomDocumentExtension|querySelectorAll'] = function DomDocumentExtension$124querySelectorAll($this, selectors) {
    if ($this == null) dart.nullFailed(I[270], 275, 24, "#this");
    if (selectors == null) dart.nullFailed(I[270], 275, 48, "selectors");
    return _engine.createDomListWrapper(T$9.DomElement(), T$10._DomList()[_as]($this.querySelectorAll(js_interop['StringToJSString|get#toJS'](selectors))));
  };
  _engine['DomDocumentExtension|createElement'] = function DomDocumentExtension$124createElement($this, name, options = null) {
    if ($this == null) dart.nullFailed(I[270], 282, 14, "#this");
    if (name == null) dart.nullFailed(I[270], 282, 35, "name");
    if (options == null) {
      return T$9.DomElement()[_as]($this.createElement(js_interop['StringToJSString|get#toJS'](name)));
    } else {
      return T$9.DomElement()[_as]($this.createElement(js_interop['StringToJSString|get#toJS'](name), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](options)));
    }
  };
  _engine['DomDocumentExtension|get#createElement'] = function DomDocumentExtension$124get$35createElement($this) {
    if ($this == null) dart.nullFailed(I[270], 282, 14, "#this");
    return dart.fn((name, options = null) => {
      if (name == null) dart.nullFailed(I[270], 282, 35, "name");
      return _engine['DomDocumentExtension|createElement']($this, name, options);
    }, T$13.StringAndObjectNToDomElement());
  };
  _engine['DomDocumentExtension|execCommand'] = function DomDocumentExtension$124execCommand($this, commandId) {
    if ($this == null) dart.nullFailed(I[270], 292, 8, "#this");
    if (commandId == null) dart.nullFailed(I[270], 292, 27, "commandId");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.execCommand(js_interop['StringToJSString|get#toJS'](commandId))));
  };
  _engine['DomDocumentExtension|get#execCommand'] = function DomDocumentExtension$124get$35execCommand($this) {
    if ($this == null) dart.nullFailed(I[270], 292, 8, "#this");
    return dart.fn(commandId => {
      if (commandId == null) dart.nullFailed(I[270], 292, 27, "commandId");
      return _engine['DomDocumentExtension|execCommand']($this, commandId);
    }, T$.StringTobool());
  };
  _engine['DomDocumentExtension|get#createElementNS'] = function DomDocumentExtension$124get$35createElementNS($this) {
    if ($this == null) dart.nullFailed(I[270], 299, 14, "#this");
    return dart.fn((namespaceURI, qualifiedName) => {
      if (namespaceURI == null) dart.nullFailed(I[270], 299, 37, "namespaceURI");
      if (qualifiedName == null) dart.nullFailed(I[270], 299, 58, "qualifiedName");
      return _engine['DomDocumentExtension|createElementNS']($this, namespaceURI, qualifiedName);
    }, T$13.StringAndStringToDomElement());
  };
  _engine['DomDocumentExtension|createElementNS'] = function DomDocumentExtension$124createElementNS($this, namespaceURI, qualifiedName) {
    if ($this == null) dart.nullFailed(I[270], 299, 14, "#this");
    if (namespaceURI == null) dart.nullFailed(I[270], 299, 37, "namespaceURI");
    if (qualifiedName == null) dart.nullFailed(I[270], 299, 58, "qualifiedName");
    return T$9.DomElement()[_as]($this.createElementNS(js_interop['StringToJSString|get#toJS'](namespaceURI), js_interop['StringToJSString|get#toJS'](qualifiedName)));
  };
  _engine['DomDocumentExtension|createTextNode'] = function DomDocumentExtension$124createTextNode($this, data) {
    if ($this == null) dart.nullFailed(I[270], 304, 11, "#this");
    if (data == null) dart.nullFailed(I[270], 304, 33, "data");
    return T$10.DomText()[_as]($this.createTextNode(js_interop['StringToJSString|get#toJS'](data)));
  };
  _engine['DomDocumentExtension|get#createTextNode'] = function DomDocumentExtension$124get$35createTextNode($this) {
    if ($this == null) dart.nullFailed(I[270], 304, 11, "#this");
    return dart.fn(data => {
      if (data == null) dart.nullFailed(I[270], 304, 33, "data");
      return _engine['DomDocumentExtension|createTextNode']($this, data);
    }, T$13.StringToDomText());
  };
  _engine['DomDocumentExtension|createEvent'] = function DomDocumentExtension$124createEvent($this, eventType) {
    if ($this == null) dart.nullFailed(I[270], 308, 12, "#this");
    if (eventType == null) dart.nullFailed(I[270], 308, 31, "eventType");
    return T$13.DomEvent()[_as]($this.createEvent(js_interop['StringToJSString|get#toJS'](eventType)));
  };
  _engine['DomDocumentExtension|get#createEvent'] = function DomDocumentExtension$124get$35createEvent($this) {
    if ($this == null) dart.nullFailed(I[270], 308, 12, "#this");
    return dart.fn(eventType => {
      if (eventType == null) dart.nullFailed(I[270], 308, 31, "eventType");
      return _engine['DomDocumentExtension|createEvent']($this, eventType);
    }, T$13.StringToDomEvent());
  };
  _engine['DomDocumentExtension|elementFromPoint'] = function DomDocumentExtension$124elementFromPoint($this, x, y) {
    if ($this == null) dart.nullFailed(I[270], 314, 15, "#this");
    if (x == null) dart.nullFailed(I[270], 314, 36, "x");
    if (y == null) dart.nullFailed(I[270], 314, 43, "y");
    return T$9.DomElementN()[_as]($this.elementFromPoint(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y)));
  };
  _engine['DomDocumentExtension|get#elementFromPoint'] = function DomDocumentExtension$124get$35elementFromPoint($this) {
    if ($this == null) dart.nullFailed(I[270], 314, 15, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[270], 314, 36, "x");
      if (y == null) dart.nullFailed(I[270], 314, 43, "y");
      return _engine['DomDocumentExtension|elementFromPoint']($this, x, y);
    }, T$13.intAndintToDomElementN());
  };
  _engine['DomHTMLDocumentExtension|set#title'] = function DomHTMLDocumentExtension$124set$35title($this, value) {
    let t$361192, t$361192$;
    if ($this == null) dart.nullFailed(I[270], 329, 7, "#this");
    t$361192$ = (t$361192 = value, t$361192 == null ? null : js_interop['StringToJSString|get#toJS'](t$361192));
    $this.title = t$361192$;
    return t$361192$;
  };
  _engine['DomHTMLDocumentExtension|get#title'] = function DomHTMLDocumentExtension$124get$35title($this) {
    let t$361193;
    if ($this == null) dart.nullFailed(I[270], 333, 15, "#this");
    t$361193 = js_util.getProperty(T$.StringN(), $this, "title");
    return t$361193 == null ? null : js_interop['JSStringToString|get#toDart'](t$361193);
  };
  _engine['DomHTMLDocumentExtension|getElementsByTagName'] = function DomHTMLDocumentExtension$124getElementsByTagName($this, tag) {
    if ($this == null) dart.nullFailed(I[270], 337, 24, "#this");
    if (tag == null) dart.nullFailed(I[270], 337, 52, "tag");
    return _engine.createDomListWrapper(T$9.DomElement(), T$10._DomList()[_as]($this.getElementsByTagName(js_interop['StringToJSString|get#toJS'](tag))));
  };
  _engine['DomHTMLDocumentExtension|get#getElementsByTagName'] = function DomHTMLDocumentExtension$124get$35getElementsByTagName($this) {
    if ($this == null) dart.nullFailed(I[270], 337, 24, "#this");
    return dart.fn(tag => {
      if (tag == null) dart.nullFailed(I[270], 337, 52, "tag");
      return _engine['DomHTMLDocumentExtension|getElementsByTagName']($this, tag);
    }, T$13.StringToIterableOfDomElement());
  };
  _engine['DomHTMLDocumentExtension|getElementById'] = function DomHTMLDocumentExtension$124getElementById($this, id) {
    if ($this == null) dart.nullFailed(I[270], 344, 15, "#this");
    if (id == null) dart.nullFailed(I[270], 344, 37, "id");
    return T$9.DomElementN()[_as]($this.getElementById(js_interop['StringToJSString|get#toJS'](id)));
  };
  _engine['DomHTMLDocumentExtension|get#getElementById'] = function DomHTMLDocumentExtension$124get$35getElementById($this) {
    if ($this == null) dart.nullFailed(I[270], 344, 15, "#this");
    return dart.fn(id => {
      if (id == null) dart.nullFailed(I[270], 344, 37, "id");
      return _engine['DomHTMLDocumentExtension|getElementById']($this, id);
    }, T$13.StringToDomElementN());
  };
  _engine['DomHTMLDocumentExtension|get#visibilityState'] = function DomHTMLDocumentExtension$124get$35visibilityState($this) {
    if ($this == null) dart.nullFailed(I[270], 348, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "visibilityState"));
  };
  _engine['DomEventTargetExtension|addEventListener'] = function DomEventTargetExtension$124addEventListener($this, type, listener, useCapture = null) {
    if ($this == null) dart.nullFailed(I[270], 364, 8, "#this");
    if (type == null) dart.nullFailed(I[270], 364, 32, "type");
    if (listener != null) {
      if (useCapture == null) {
        $this.addEventListener(js_interop['StringToJSString|get#toJS'](type), listener);
      } else {
        $this.addEventListener(js_interop['StringToJSString|get#toJS'](type), listener, js_interop['BoolToJSBoolean|get#toJS'](useCapture));
      }
    }
  };
  _engine['DomEventTargetExtension|get#addEventListener'] = function DomEventTargetExtension$124get$35addEventListener($this) {
    if ($this == null) dart.nullFailed(I[270], 364, 8, "#this");
    return dart.fn((type, listener, useCapture = null) => {
      if (type == null) dart.nullFailed(I[270], 364, 32, "type");
      return _engine['DomEventTargetExtension|addEventListener']($this, type, listener, useCapture);
    }, T$12.StringAndDomEventListenerNAndboolNTovoid());
  };
  _engine['DomEventTargetExtension|addEventListenerWithOptions'] = function DomEventTargetExtension$124addEventListenerWithOptions($this, type, listener, options) {
    if ($this == null) dart.nullFailed(I[270], 378, 8, "#this");
    if (type == null) dart.nullFailed(I[270], 378, 43, "type");
    if (listener == null) dart.nullFailed(I[270], 378, 66, "listener");
    if (options == null) dart.nullFailed(I[270], 379, 31, "options");
    return $this.addEventListener(js_interop['StringToJSString|get#toJS'](type), listener, _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](options));
  };
  _engine['DomEventTargetExtension|get#addEventListenerWithOptions'] = function DomEventTargetExtension$124get$35addEventListenerWithOptions($this) {
    if ($this == null) dart.nullFailed(I[270], 378, 8, "#this");
    return dart.fn((type, listener, options) => {
      if (type == null) dart.nullFailed(I[270], 378, 43, "type");
      if (listener == null) dart.nullFailed(I[270], 378, 66, "listener");
      if (options == null) dart.nullFailed(I[270], 379, 31, "options");
      return _engine['DomEventTargetExtension|addEventListenerWithOptions']($this, type, listener, options);
    }, T$13.StringAndDomEventListenerAndMapOfString$ObjectTovoid());
  };
  _engine['DomEventTargetExtension|removeEventListener'] = function DomEventTargetExtension$124removeEventListener($this, type, listener, useCapture = null) {
    if ($this == null) dart.nullFailed(I[270], 388, 8, "#this");
    if (type == null) dart.nullFailed(I[270], 388, 35, "type");
    if (listener != null) {
      if (useCapture == null) {
        $this.removeEventListener(js_interop['StringToJSString|get#toJS'](type), listener);
      } else {
        $this.removeEventListener(js_interop['StringToJSString|get#toJS'](type), listener, js_interop['BoolToJSBoolean|get#toJS'](useCapture));
      }
    }
  };
  _engine['DomEventTargetExtension|get#removeEventListener'] = function DomEventTargetExtension$124get$35removeEventListener($this) {
    if ($this == null) dart.nullFailed(I[270], 388, 8, "#this");
    return dart.fn((type, listener, useCapture = null) => {
      if (type == null) dart.nullFailed(I[270], 388, 35, "type");
      return _engine['DomEventTargetExtension|removeEventListener']($this, type, listener, useCapture);
    }, T$12.StringAndDomEventListenerNAndboolNTovoid());
  };
  _engine['DomEventTargetExtension|dispatchEvent'] = function DomEventTargetExtension$124dispatchEvent($this, event) {
    if ($this == null) dart.nullFailed(I[270], 401, 8, "#this");
    if (event == null) dart.nullFailed(I[270], 401, 31, "event");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.dispatchEvent(event)));
  };
  _engine['DomEventTargetExtension|get#dispatchEvent'] = function DomEventTargetExtension$124get$35dispatchEvent($this) {
    if ($this == null) dart.nullFailed(I[270], 401, 8, "#this");
    return dart.fn(event => {
      if (event == null) dart.nullFailed(I[270], 401, 31, "event");
      return _engine['DomEventTargetExtension|dispatchEvent']($this, event);
    }, T$11.DomEventTobool());
  };
  _engine.createDomEventListener = function createDomEventListener(listener) {
    if (listener == null) dart.nullFailed(I[270], 410, 62, "listener");
    return T$9.DomEventListener()[_as](js_util._functionToJS1(listener));
  };
  _engine['DomEventExtension|get#timeStamp'] = function DomEventExtension$124get$35timeStamp($this) {
    let t$361207;
    if ($this == null) dart.nullFailed(I[270], 423, 15, "#this");
    t$361207 = js_util.getProperty(T$9.doubleN(), $this, "timeStamp");
    return t$361207 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361207);
  };
  _engine['DomEventExtension|get#type'] = function DomEventExtension$124get$35type($this) {
    if ($this == null) dart.nullFailed(I[270], 427, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "type"));
  };
  _engine['DomEventExtension|get#cancelable'] = function DomEventExtension$124get$35cancelable($this) {
    let t$361209, t$361209$;
    if ($this == null) dart.nullFailed(I[270], 430, 12, "#this");
    t$361209$ = (t$361209 = js_util.getProperty(T$.boolN(), $this, "_cancelable"), t$361209 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361209));
    return t$361209$ == null ? true : t$361209$;
  };
  _engine['DomEventExtension|initEvent'] = function DomEventExtension$124initEvent($this, type, bubbles = null, cancelable = null) {
    if ($this == null) dart.nullFailed(I[270], 442, 8, "#this");
    if (type == null) dart.nullFailed(I[270], 442, 25, "type");
    if (bubbles == null) {
      $this.initEvent(js_interop['StringToJSString|get#toJS'](type));
    } else if (cancelable == null) {
      $this.initEvent(js_interop['StringToJSString|get#toJS'](type), js_interop['BoolToJSBoolean|get#toJS'](bubbles));
    } else {
      $this.initEvent(js_interop['StringToJSString|get#toJS'](type), js_interop['BoolToJSBoolean|get#toJS'](bubbles), js_interop['BoolToJSBoolean|get#toJS'](cancelable));
    }
  };
  _engine['DomEventExtension|get#initEvent'] = function DomEventExtension$124get$35initEvent($this) {
    if ($this == null) dart.nullFailed(I[270], 442, 8, "#this");
    return dart.fn((type, bubbles = null, cancelable = null) => {
      if (type == null) dart.nullFailed(I[270], 442, 25, "type");
      return _engine['DomEventExtension|initEvent']($this, type, bubbles, cancelable);
    }, T$3.StringAndboolNAndboolNTovoid());
  };
  _engine['DomEventExtension|get#defaultPrevented'] = function DomEventExtension$124get$35defaultPrevented($this) {
    if ($this == null) dart.nullFailed(I[270], 454, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "defaultPrevented"));
  };
  _engine.createDomEvent = function createDomEvent(type, name) {
    if (type == null) dart.nullFailed(I[270], 457, 32, "type");
    if (name == null) dart.nullFailed(I[270], 457, 45, "name");
    let event = _engine['DomDocumentExtension|createEvent'](dart.jsInteropNullCheck(dart.global.document), type);
    _engine['DomEventExtension|initEvent'](event, name, true, true);
    return event;
  };
  _engine['DomProgressEventExtension|get#loaded'] = function DomProgressEventExtension$124get$35loaded($this) {
    let t$361213;
    if ($this == null) dart.nullFailed(I[270], 473, 15, "#this");
    t$361213 = js_util.getProperty(T$9.doubleN(), $this, "loaded");
    return t$361213 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361213);
  };
  _engine['DomProgressEventExtension|get#total'] = function DomProgressEventExtension$124get$35total($this) {
    let t$361214;
    if ($this == null) dart.nullFailed(I[270], 477, 15, "#this");
    t$361214 = js_util.getProperty(T$9.doubleN(), $this, "total");
    return t$361214 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361214);
  };
  _engine['DomNodeExtension|get#baseUri'] = function DomNodeExtension$124get$35baseUri($this) {
    let t$361215;
    if ($this == null) dart.nullFailed(I[270], 487, 15, "#this");
    t$361215 = js_util.getProperty(T$.StringN(), $this, "baseURI");
    return t$361215 == null ? null : js_interop['JSStringToString|get#toDart'](t$361215);
  };
  _engine['DomNodeExtension|get#innerText'] = function DomNodeExtension$124get$35innerText($this) {
    if ($this == null) dart.nullFailed(I[270], 493, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "innerText"));
  };
  _engine['DomNodeExtension|set#innerText'] = function DomNodeExtension$124set$35innerText($this, text) {
    let t$361217;
    if ($this == null) dart.nullFailed(I[270], 497, 7, "#this");
    if (text == null) dart.nullFailed(I[270], 497, 24, "text");
    t$361217 = js_interop['StringToJSString|get#toJS'](text);
    $this.innerText = t$361217;
    return t$361217;
  };
  _engine['DomNodeExtension|get#parent'] = function DomNodeExtension$124get$35parent($this) {
    if ($this == null) dart.nullFailed(I[270], 504, 19, "#this");
    return js_util.getProperty(T$9.DomElementN(), $this, "parentElement");
  };
  _engine['DomNodeExtension|get#text'] = function DomNodeExtension$124get$35text($this) {
    let t$361219;
    if ($this == null) dart.nullFailed(I[270], 508, 15, "#this");
    t$361219 = js_util.getProperty(T$.StringN(), $this, "textContent");
    return t$361219 == null ? null : js_interop['JSStringToString|get#toDart'](t$361219);
  };
  _engine['DomNodeExtension|remove'] = function DomNodeExtension$124remove($this) {
    if ($this == null) dart.nullFailed(I[270], 513, 8, "#this");
    if (js_util.getProperty(T$9.DomNodeN(), $this, "parentNode") != null) {
      let parent = dart.nullCheck(js_util.getProperty(T$9.DomNodeN(), $this, "parentNode"));
      T$9.DomNode()[_as](parent.removeChild($this));
    }
  };
  _engine['DomNodeExtension|get#remove'] = function DomNodeExtension$124get$35remove($this) {
    if ($this == null) dart.nullFailed(I[270], 513, 8, "#this");
    return dart.fn(() => _engine['DomNodeExtension|remove']($this), T$.VoidTovoid());
  };
  _engine['DomNodeExtension|get#isConnected'] = function DomNodeExtension$124get$35isConnected($this) {
    let t$361222;
    if ($this == null) dart.nullFailed(I[270], 524, 13, "#this");
    t$361222 = js_util.getProperty(T$.boolN(), $this, "isConnected");
    return t$361222 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361222);
  };
  _engine['DomNodeExtension|set#text'] = function DomNodeExtension$124set$35text($this, value) {
    let t$361223, t$361223$;
    if ($this == null) dart.nullFailed(I[270], 528, 7, "#this");
    t$361223$ = (t$361223 = value, t$361223 == null ? null : js_interop['StringToJSString|get#toJS'](t$361223));
    $this.textContent = t$361223$;
    return t$361223$;
  };
  _engine['DomNodeExtension|cloneNode'] = function DomNodeExtension$124cloneNode($this, deep) {
    let t$361224;
    if ($this == null) dart.nullFailed(I[270], 532, 11, "#this");
    return T$9.DomNode()[_as]($this.cloneNode((t$361224 = deep, t$361224 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$361224))));
  };
  _engine['DomNodeExtension|get#cloneNode'] = function DomNodeExtension$124get$35cloneNode($this) {
    if ($this == null) dart.nullFailed(I[270], 532, 11, "#this");
    return dart.fn(deep => _engine['DomNodeExtension|cloneNode']($this, deep), T$13.boolNToDomNode());
  };
  _engine['DomNodeExtension|contains'] = function DomNodeExtension$124contains($this, other) {
    if ($this == null) dart.nullFailed(I[270], 536, 8, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.contains(other)));
  };
  _engine['DomNodeExtension|get#contains'] = function DomNodeExtension$124get$35contains($this) {
    if ($this == null) dart.nullFailed(I[270], 536, 8, "#this");
    return dart.fn(other => _engine['DomNodeExtension|contains']($this, other), T$13.DomNodeNTobool());
  };
  _engine['DomNodeExtension|get#childNodes'] = function DomNodeExtension$124get$35childNodes($this) {
    if ($this == null) dart.nullFailed(I[270], 542, 25, "#this");
    return _engine.createDomListWrapper(T$9.DomElement(), js_util.getProperty(T$10._DomList(), $this, "childNodes"));
  };
  _engine['DomNodeExtension|clearChildren'] = function DomNodeExtension$124clearChildren($this) {
    if ($this == null) dart.nullFailed(I[270], 546, 8, "#this");
    while (js_util.getProperty(T$9.DomNodeN(), $this, "firstChild") != null) {
      T$9.DomNode()[_as]($this.removeChild(dart.nullCheck(js_util.getProperty(T$9.DomNodeN(), $this, "firstChild"))));
    }
  };
  _engine['DomNodeExtension|get#clearChildren'] = function DomNodeExtension$124get$35clearChildren($this) {
    if ($this == null) dart.nullFailed(I[270], 546, 8, "#this");
    return dart.fn(() => _engine['DomNodeExtension|clearChildren']($this), T$.VoidTovoid());
  };
  _engine.createDomElement = function createDomElement(tag) {
    if (tag == null) dart.nullFailed(I[270], 557, 36, "tag");
    return _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), tag);
  };
  _engine['DomElementExtension|get#children'] = function DomElementExtension$124get$35children($this) {
    if ($this == null) dart.nullFailed(I[270], 562, 28, "#this");
    return _engine.createDomListWrapper(T$9.DomElement(), js_util.getProperty(T$10._DomList(), $this, "children"));
  };
  _engine['DomElementExtension|get#clientHeight'] = function DomElementExtension$124get$35clientHeight($this) {
    if ($this == null) dart.nullFailed(I[270], 572, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "clientHeight"));
  };
  _engine['DomElementExtension|get#clientWidth'] = function DomElementExtension$124get$35clientWidth($this) {
    if ($this == null) dart.nullFailed(I[270], 576, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "clientWidth"));
  };
  _engine['DomElementExtension|get#offsetHeight'] = function DomElementExtension$124get$35offsetHeight($this) {
    if ($this == null) dart.nullFailed(I[270], 580, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "offsetHeight"));
  };
  _engine['DomElementExtension|get#offsetWidth'] = function DomElementExtension$124get$35offsetWidth($this) {
    if ($this == null) dart.nullFailed(I[270], 584, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "offsetWidth"));
  };
  _engine['DomElementExtension|get#id'] = function DomElementExtension$124get$35id($this) {
    if ($this == null) dart.nullFailed(I[270], 588, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "id"));
  };
  _engine['DomElementExtension|set#id'] = function DomElementExtension$124set$35id($this, id) {
    let t$361237;
    if ($this == null) dart.nullFailed(I[270], 592, 7, "#this");
    if (id == null) dart.nullFailed(I[270], 592, 17, "id");
    t$361237 = js_interop['StringToJSString|get#toJS'](id);
    $this.id = t$361237;
    return t$361237;
  };
  _engine['DomElementExtension|set#innerHTML'] = function DomElementExtension$124set$35innerHTML($this, html) {
    let t$361238, t$361238$;
    if ($this == null) dart.nullFailed(I[270], 596, 7, "#this");
    t$361238$ = (t$361238 = html, t$361238 == null ? null : js_interop['StringToJSString|get#toJS'](t$361238));
    $this.innerHTML = t$361238$;
    return t$361238$;
  };
  _engine['DomElementExtension|get#outerHTML'] = function DomElementExtension$124get$35outerHTML($this) {
    let t$361239;
    if ($this == null) dart.nullFailed(I[270], 600, 15, "#this");
    t$361239 = js_util.getProperty(T$.StringN(), $this, "outerHTML");
    return t$361239 == null ? null : js_interop['JSStringToString|get#toDart'](t$361239);
  };
  _engine['DomElementExtension|set#spellcheck'] = function DomElementExtension$124set$35spellcheck($this, value) {
    let t$361240, t$361240$;
    if ($this == null) dart.nullFailed(I[270], 604, 7, "#this");
    t$361240$ = (t$361240 = value, t$361240 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$361240));
    $this.spellcheck = t$361240$;
    return t$361240$;
  };
  _engine['DomElementExtension|get#tagName'] = function DomElementExtension$124get$35tagName($this) {
    if ($this == null) dart.nullFailed(I[270], 608, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "tagName"));
  };
  _engine['DomElementExtension|getAttribute'] = function DomElementExtension$124getAttribute($this, attributeName) {
    let t$361242;
    if ($this == null) dart.nullFailed(I[270], 615, 11, "#this");
    if (attributeName == null) dart.nullFailed(I[270], 615, 31, "attributeName");
    t$361242 = T$.StringN()[_as]($this.getAttribute(js_interop['StringToJSString|get#toJS'](attributeName)));
    return t$361242 == null ? null : js_interop['JSStringToString|get#toDart'](t$361242);
  };
  _engine['DomElementExtension|get#getAttribute'] = function DomElementExtension$124get$35getAttribute($this) {
    if ($this == null) dart.nullFailed(I[270], 615, 11, "#this");
    return dart.fn(attributeName => {
      if (attributeName == null) dart.nullFailed(I[270], 615, 31, "attributeName");
      return _engine['DomElementExtension|getAttribute']($this, attributeName);
    }, T$.StringToStringN());
  };
  _engine['DomElementExtension|querySelector'] = function DomElementExtension$124querySelector($this, selectors) {
    if ($this == null) dart.nullFailed(I[270], 623, 15, "#this");
    if (selectors == null) dart.nullFailed(I[270], 623, 36, "selectors");
    return T$9.DomElementN()[_as]($this.querySelector(js_interop['StringToJSString|get#toJS'](selectors)));
  };
  _engine['DomElementExtension|get#querySelector'] = function DomElementExtension$124get$35querySelector($this) {
    if ($this == null) dart.nullFailed(I[270], 623, 15, "#this");
    return dart.fn(selectors => {
      if (selectors == null) dart.nullFailed(I[270], 623, 36, "selectors");
      return _engine['DomElementExtension|querySelector']($this, selectors);
    }, T$13.StringToDomElementN());
  };
  _engine['DomElementExtension|get#closest'] = function DomElementExtension$124get$35closest($this) {
    if ($this == null) dart.nullFailed(I[270], 627, 15, "#this");
    return dart.fn(selectors => {
      if (selectors == null) dart.nullFailed(I[270], 627, 30, "selectors");
      return _engine['DomElementExtension|closest']($this, selectors);
    }, T$13.StringToDomElementN());
  };
  _engine['DomElementExtension|closest'] = function DomElementExtension$124closest($this, selectors) {
    if ($this == null) dart.nullFailed(I[270], 627, 15, "#this");
    if (selectors == null) dart.nullFailed(I[270], 627, 30, "selectors");
    return T$9.DomElementN()[_as]($this.closest(js_interop['StringToJSString|get#toJS'](selectors)));
  };
  _engine['DomElementExtension|matches'] = function DomElementExtension$124matches($this, selectors) {
    if ($this == null) dart.nullFailed(I[270], 631, 8, "#this");
    if (selectors == null) dart.nullFailed(I[270], 631, 23, "selectors");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.matches(js_interop['StringToJSString|get#toJS'](selectors))));
  };
  _engine['DomElementExtension|get#matches'] = function DomElementExtension$124get$35matches($this) {
    if ($this == null) dart.nullFailed(I[270], 631, 8, "#this");
    return dart.fn(selectors => {
      if (selectors == null) dart.nullFailed(I[270], 631, 23, "selectors");
      return _engine['DomElementExtension|matches']($this, selectors);
    }, T$.StringTobool());
  };
  _engine['DomElementExtension|querySelectorAll'] = function DomElementExtension$124querySelectorAll($this, selectors) {
    if ($this == null) dart.nullFailed(I[270], 635, 24, "#this");
    if (selectors == null) dart.nullFailed(I[270], 635, 48, "selectors");
    return _engine.createDomListWrapper(T$9.DomElement(), T$10._DomList()[_as]($this.querySelectorAll(js_interop['StringToJSString|get#toJS'](selectors))));
  };
  _engine['DomElementExtension|get#querySelectorAll'] = function DomElementExtension$124get$35querySelectorAll($this) {
    if ($this == null) dart.nullFailed(I[270], 635, 24, "#this");
    return dart.fn(selectors => {
      if (selectors == null) dart.nullFailed(I[270], 635, 48, "selectors");
      return _engine['DomElementExtension|querySelectorAll']($this, selectors);
    }, T$13.StringToIterableOfDomElement());
  };
  _engine['DomElementExtension|setAttribute'] = function DomElementExtension$124setAttribute($this, name, value) {
    if ($this == null) dart.nullFailed(I[270], 642, 10, "#this");
    if (name == null) dart.nullFailed(I[270], 642, 30, "name");
    if (value == null) dart.nullFailed(I[270], 642, 43, "value");
    return $this.setAttribute(js_interop['StringToJSString|get#toJS'](name), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](value));
  };
  _engine['DomElementExtension|get#setAttribute'] = function DomElementExtension$124get$35setAttribute($this) {
    if ($this == null) dart.nullFailed(I[270], 642, 10, "#this");
    return dart.fn((name, value) => {
      if (name == null) dart.nullFailed(I[270], 642, 30, "name");
      if (value == null) dart.nullFailed(I[270], 642, 43, "value");
      return _engine['DomElementExtension|setAttribute']($this, name, value);
    }, T$3.StringAndObjectTovoid());
  };
  _engine['DomElementExtension|appendText'] = function DomElementExtension$124appendText($this, text) {
    if ($this == null) dart.nullFailed(I[270], 645, 8, "#this");
    if (text == null) dart.nullFailed(I[270], 645, 26, "text");
    return $this.append(_engine.createDomText(text));
  };
  _engine['DomElementExtension|get#appendText'] = function DomElementExtension$124get$35appendText($this) {
    if ($this == null) dart.nullFailed(I[270], 645, 8, "#this");
    return dart.fn(text => {
      if (text == null) dart.nullFailed(I[270], 645, 26, "text");
      return _engine['DomElementExtension|appendText']($this, text);
    }, T$.StringTovoid());
  };
  _engine['DomElementExtension|get#removeAttribute'] = function DomElementExtension$124get$35removeAttribute($this) {
    if ($this == null) dart.nullFailed(I[270], 649, 8, "#this");
    return dart.fn(name => {
      if (name == null) dart.nullFailed(I[270], 649, 31, "name");
      return _engine['DomElementExtension|removeAttribute']($this, name);
    }, T$.StringTovoid());
  };
  _engine['DomElementExtension|removeAttribute'] = function DomElementExtension$124removeAttribute($this, name) {
    if ($this == null) dart.nullFailed(I[270], 649, 8, "#this");
    if (name == null) dart.nullFailed(I[270], 649, 31, "name");
    return $this.removeAttribute(js_interop['StringToJSString|get#toJS'](name));
  };
  _engine['DomElementExtension|set#tabIndex'] = function DomElementExtension$124set$35tabIndex($this, value) {
    let t$361258, t$361258$;
    if ($this == null) dart.nullFailed(I[270], 653, 7, "#this");
    t$361258$ = (t$361258 = value, t$361258 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361258));
    $this.tabIndex = t$361258$;
    return t$361258$;
  };
  _engine['DomElementExtension|get#tabIndex'] = function DomElementExtension$124get$35tabIndex($this) {
    let t$361259;
    if ($this == null) dart.nullFailed(I[270], 657, 15, "#this");
    t$361259 = js_util.getProperty(T$9.doubleN(), $this, "tabIndex");
    return t$361259 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361259);
  };
  _engine['DomElementExtension|get#focus'] = function DomElementExtension$124get$35focus($this) {
    if ($this == null) dart.nullFailed(I[270], 662, 8, "#this");
    return dart.fn(opts => {
      let preventScroll = opts && 'preventScroll' in opts ? opts.preventScroll : null;
      let focusVisible = opts && 'focusVisible' in opts ? opts.focusVisible : null;
      return _engine['DomElementExtension|focus']($this, {preventScroll: preventScroll, focusVisible: focusVisible});
    }, T$13.__Tovoid$27());
  };
  _engine['DomElementExtension|focus'] = function DomElementExtension$124focus($this, opts) {
    if ($this == null) dart.nullFailed(I[270], 662, 8, "#this");
    let preventScroll = opts && 'preventScroll' in opts ? opts.preventScroll : null;
    let focusVisible = opts && 'focusVisible' in opts ? opts.focusVisible : null;
    let options = (() => {
      let t$361261 = new (G$.IdentityMapOfString$bool()).new();
      if (preventScroll != null) t$361261[$_set]("preventScroll", preventScroll);
      if (focusVisible != null) t$361261[$_set]("focusVisible", focusVisible);
      return t$361261;
    })();
    $this.focus(_engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](options));
  };
  _engine['DomElementExtension|get#scrollTop'] = function DomElementExtension$124get$35scrollTop($this) {
    if ($this == null) dart.nullFailed(I[270], 672, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "scrollTop"));
  };
  _engine['DomElementExtension|set#scrollTop'] = function DomElementExtension$124set$35scrollTop($this, value) {
    let t$361264;
    if ($this == null) dart.nullFailed(I[270], 676, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 676, 24, "value");
    t$361264 = js_interop['DoubleToJSNumber|get#toJS'](value);
    $this.scrollTop = t$361264;
    return t$361264;
  };
  _engine['DomElementExtension|get#scrollLeft'] = function DomElementExtension$124get$35scrollLeft($this) {
    if ($this == null) dart.nullFailed(I[270], 680, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "scrollLeft"));
  };
  _engine['DomElementExtension|set#scrollLeft'] = function DomElementExtension$124set$35scrollLeft($this, value) {
    let t$361266;
    if ($this == null) dart.nullFailed(I[270], 684, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 684, 25, "value");
    t$361266 = js_interop['DoubleToJSNumber|get#toJS'](value);
    $this.scrollLeft = t$361266;
    return t$361266;
  };
  _engine['DomElementExtension|set#className'] = function DomElementExtension$124set$35className($this, value) {
    let t$361267;
    if ($this == null) dart.nullFailed(I[270], 690, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 690, 24, "value");
    t$361267 = js_interop['StringToJSString|get#toJS'](value);
    $this.className = t$361267;
    return t$361267;
  };
  _engine['DomElementExtension|get#className'] = function DomElementExtension$124get$35className($this) {
    if ($this == null) dart.nullFailed(I[270], 694, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "className"));
  };
  _engine['DomElementExtension|getElementsByTagName'] = function DomElementExtension$124getElementsByTagName($this, tag) {
    if ($this == null) dart.nullFailed(I[270], 700, 21, "#this");
    if (tag == null) dart.nullFailed(I[270], 700, 49, "tag");
    return _engine.createDomListWrapper(T$9.DomNode(), T$10._DomList()[_as]($this.getElementsByTagName(js_interop['StringToJSString|get#toJS'](tag))));
  };
  _engine['DomElementExtension|get#getElementsByTagName'] = function DomElementExtension$124get$35getElementsByTagName($this) {
    if ($this == null) dart.nullFailed(I[270], 700, 21, "#this");
    return dart.fn(tag => {
      if (tag == null) dart.nullFailed(I[270], 700, 49, "tag");
      return _engine['DomElementExtension|getElementsByTagName']($this, tag);
    }, T$13.StringToIterableOfDomNode());
  };
  _engine['DomElementExtension|getElementsByClassName'] = function DomElementExtension$124getElementsByClassName($this, className) {
    if ($this == null) dart.nullFailed(I[270], 705, 21, "#this");
    if (className == null) dart.nullFailed(I[270], 705, 51, "className");
    return _engine.createDomListWrapper(T$9.DomNode(), T$10._DomList()[_as]($this.getElementsByClassName(js_interop['StringToJSString|get#toJS'](className))));
  };
  _engine['DomElementExtension|get#getElementsByClassName'] = function DomElementExtension$124get$35getElementsByClassName($this) {
    if ($this == null) dart.nullFailed(I[270], 705, 21, "#this");
    return dart.fn(className => {
      if (className == null) dart.nullFailed(I[270], 705, 51, "className");
      return _engine['DomElementExtension|getElementsByClassName']($this, className);
    }, T$13.StringToIterableOfDomNode());
  };
  _engine['DomElementExtension|get#hasAttribute'] = function DomElementExtension$124get$35hasAttribute($this) {
    if ($this == null) dart.nullFailed(I[270], 712, 8, "#this");
    return dart.fn(name => {
      if (name == null) dart.nullFailed(I[270], 712, 28, "name");
      return _engine['DomElementExtension|hasAttribute']($this, name);
    }, T$.StringTobool());
  };
  _engine['DomElementExtension|hasAttribute'] = function DomElementExtension$124hasAttribute($this, name) {
    if ($this == null) dart.nullFailed(I[270], 712, 8, "#this");
    if (name == null) dart.nullFailed(I[270], 712, 28, "name");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.hasAttribute(js_interop['StringToJSString|get#toJS'](name))));
  };
  _engine['DomElementExtension|get#childNodes'] = function DomElementExtension$124get$35childNodes($this) {
    if ($this == null) dart.nullFailed(I[270], 716, 25, "#this");
    return _engine.createDomListWrapper(T$9.DomElement(), js_util.getProperty(T$10._DomList(), $this, "childNodes"));
  };
  _engine['DomElementExtension|get#attachShadow'] = function DomElementExtension$124get$35attachShadow($this) {
    if ($this == null) dart.nullFailed(I[270], 721, 17, "#this");
    return dart.fn(initDict => {
      if (initDict == null) dart.nullFailed(I[270], 721, 52, "initDict");
      return _engine['DomElementExtension|attachShadow']($this, initDict);
    }, T$13.MapOfObjectN$ObjectNToDomShadowRoot());
  };
  _engine['DomElementExtension|attachShadow'] = function DomElementExtension$124attachShadow($this, initDict) {
    if ($this == null) dart.nullFailed(I[270], 721, 17, "#this");
    if (initDict == null) dart.nullFailed(I[270], 721, 52, "initDict");
    return T$12.DomShadowRoot()[_as]($this.attachShadow(_engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](initDict)));
  };
  _engine['DomElementExtension|clearChildren'] = function DomElementExtension$124clearChildren($this) {
    if ($this == null) dart.nullFailed(I[270], 725, 8, "#this");
    while (js_util.getProperty(T$9.DomNodeN(), $this, "firstChild") != null) {
      T$9.DomNode()[_as]($this.removeChild(dart.nullCheck(js_util.getProperty(T$9.DomNodeN(), $this, "firstChild"))));
    }
  };
  _engine['DomElementExtension|get#clearChildren'] = function DomElementExtension$124get$35clearChildren($this) {
    if ($this == null) dart.nullFailed(I[270], 725, 8, "#this");
    return dart.fn(() => _engine['DomElementExtension|clearChildren']($this), T$.VoidTovoid());
  };
  _engine['DomCSSStyleDeclarationExtension|set#width'] = function DomCSSStyleDeclarationExtension$124set$35width($this, value) {
    if ($this == null) dart.nullFailed(I[270], 739, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 739, 20, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "width", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#height'] = function DomCSSStyleDeclarationExtension$124set$35height($this, value) {
    if ($this == null) dart.nullFailed(I[270], 740, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 740, 21, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "height", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#position'] = function DomCSSStyleDeclarationExtension$124set$35position($this, value) {
    if ($this == null) dart.nullFailed(I[270], 741, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 741, 23, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "position", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#clip'] = function DomCSSStyleDeclarationExtension$124set$35clip($this, value) {
    if ($this == null) dart.nullFailed(I[270], 742, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 742, 19, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "clip", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#clipPath'] = function DomCSSStyleDeclarationExtension$124set$35clipPath($this, value) {
    if ($this == null) dart.nullFailed(I[270], 743, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 743, 23, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "clip-path", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#transform'] = function DomCSSStyleDeclarationExtension$124set$35transform($this, value) {
    if ($this == null) dart.nullFailed(I[270], 744, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 744, 24, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "transform", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'] = function DomCSSStyleDeclarationExtension$124set$35transformOrigin($this, value) {
    if ($this == null) dart.nullFailed(I[270], 745, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 745, 30, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "transform-origin", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#opacity'] = function DomCSSStyleDeclarationExtension$124set$35opacity($this, value) {
    if ($this == null) dart.nullFailed(I[270], 746, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 746, 22, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "opacity", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#color'] = function DomCSSStyleDeclarationExtension$124set$35color($this, value) {
    if ($this == null) dart.nullFailed(I[270], 747, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 747, 20, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "color", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#top'] = function DomCSSStyleDeclarationExtension$124set$35top($this, value) {
    if ($this == null) dart.nullFailed(I[270], 748, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 748, 18, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "top", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#left'] = function DomCSSStyleDeclarationExtension$124set$35left($this, value) {
    if ($this == null) dart.nullFailed(I[270], 749, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 749, 19, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "left", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#right'] = function DomCSSStyleDeclarationExtension$124set$35right($this, value) {
    if ($this == null) dart.nullFailed(I[270], 750, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 750, 20, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "right", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#bottom'] = function DomCSSStyleDeclarationExtension$124set$35bottom($this, value) {
    if ($this == null) dart.nullFailed(I[270], 751, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 751, 21, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "bottom", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'] = function DomCSSStyleDeclarationExtension$124set$35backgroundColor($this, value) {
    if ($this == null) dart.nullFailed(I[270], 752, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 752, 30, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "background-color", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#caretColor'] = function DomCSSStyleDeclarationExtension$124set$35caretColor($this, value) {
    if ($this == null) dart.nullFailed(I[270], 753, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 753, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "caret-color", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#pointerEvents'] = function DomCSSStyleDeclarationExtension$124set$35pointerEvents($this, value) {
    if ($this == null) dart.nullFailed(I[270], 754, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 754, 28, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "pointer-events", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#filter'] = function DomCSSStyleDeclarationExtension$124set$35filter($this, value) {
    if ($this == null) dart.nullFailed(I[270], 755, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 755, 21, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "filter", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#zIndex'] = function DomCSSStyleDeclarationExtension$124set$35zIndex($this, value) {
    if ($this == null) dart.nullFailed(I[270], 756, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 756, 21, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "z-index", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#whiteSpace'] = function DomCSSStyleDeclarationExtension$124set$35whiteSpace($this, value) {
    if ($this == null) dart.nullFailed(I[270], 757, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 757, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "white-space", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#lineHeight'] = function DomCSSStyleDeclarationExtension$124set$35lineHeight($this, value) {
    if ($this == null) dart.nullFailed(I[270], 758, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 758, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "line-height", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#textStroke'] = function DomCSSStyleDeclarationExtension$124set$35textStroke($this, value) {
    if ($this == null) dart.nullFailed(I[270], 759, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 759, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "-webkit-text-stroke", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#fontSize'] = function DomCSSStyleDeclarationExtension$124set$35fontSize($this, value) {
    if ($this == null) dart.nullFailed(I[270], 760, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 760, 23, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "font-size", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#fontWeight'] = function DomCSSStyleDeclarationExtension$124set$35fontWeight($this, value) {
    if ($this == null) dart.nullFailed(I[270], 761, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 761, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "font-weight", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#fontStyle'] = function DomCSSStyleDeclarationExtension$124set$35fontStyle($this, value) {
    if ($this == null) dart.nullFailed(I[270], 762, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 762, 24, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "font-style", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#fontFamily'] = function DomCSSStyleDeclarationExtension$124set$35fontFamily($this, value) {
    if ($this == null) dart.nullFailed(I[270], 763, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 763, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "font-family", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#letterSpacing'] = function DomCSSStyleDeclarationExtension$124set$35letterSpacing($this, value) {
    if ($this == null) dart.nullFailed(I[270], 764, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 764, 28, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "letter-spacing", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#wordSpacing'] = function DomCSSStyleDeclarationExtension$124set$35wordSpacing($this, value) {
    if ($this == null) dart.nullFailed(I[270], 765, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 765, 26, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "word-spacing", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#textShadow'] = function DomCSSStyleDeclarationExtension$124set$35textShadow($this, value) {
    if ($this == null) dart.nullFailed(I[270], 766, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 766, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "text-shadow", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#textDecoration'] = function DomCSSStyleDeclarationExtension$124set$35textDecoration($this, value) {
    if ($this == null) dart.nullFailed(I[270], 767, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 767, 29, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "text-decoration", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#textDecorationColor'] = function DomCSSStyleDeclarationExtension$124set$35textDecorationColor($this, value) {
    if ($this == null) dart.nullFailed(I[270], 768, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 768, 34, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "text-decoration-color", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#fontFeatureSettings'] = function DomCSSStyleDeclarationExtension$124set$35fontFeatureSettings($this, value) {
    if ($this == null) dart.nullFailed(I[270], 770, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 770, 34, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "font-feature-settings", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#fontVariationSettings'] = function DomCSSStyleDeclarationExtension$124set$35fontVariationSettings($this, value) {
    if ($this == null) dart.nullFailed(I[270], 772, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 772, 36, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "font-variation-settings", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#visibility'] = function DomCSSStyleDeclarationExtension$124set$35visibility($this, value) {
    if ($this == null) dart.nullFailed(I[270], 774, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 774, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "visibility", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#overflow'] = function DomCSSStyleDeclarationExtension$124set$35overflow($this, value) {
    if ($this == null) dart.nullFailed(I[270], 775, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 775, 23, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "overflow", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#boxShadow'] = function DomCSSStyleDeclarationExtension$124set$35boxShadow($this, value) {
    if ($this == null) dart.nullFailed(I[270], 776, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 776, 24, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "box-shadow", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#borderTopLeftRadius'] = function DomCSSStyleDeclarationExtension$124set$35borderTopLeftRadius($this, value) {
    if ($this == null) dart.nullFailed(I[270], 777, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 777, 34, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "border-top-left-radius", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#borderTopRightRadius'] = function DomCSSStyleDeclarationExtension$124set$35borderTopRightRadius($this, value) {
    if ($this == null) dart.nullFailed(I[270], 779, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 779, 35, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "border-top-right-radius", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#borderBottomLeftRadius'] = function DomCSSStyleDeclarationExtension$124set$35borderBottomLeftRadius($this, value) {
    if ($this == null) dart.nullFailed(I[270], 781, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 781, 37, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "border-bottom-left-radius", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#borderBottomRightRadius'] = function DomCSSStyleDeclarationExtension$124set$35borderBottomRightRadius($this, value) {
    if ($this == null) dart.nullFailed(I[270], 783, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 783, 38, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "border-bottom-right-radius", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#borderRadius'] = function DomCSSStyleDeclarationExtension$124set$35borderRadius($this, value) {
    if ($this == null) dart.nullFailed(I[270], 785, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 785, 27, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "border-radius", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#perspective'] = function DomCSSStyleDeclarationExtension$124set$35perspective($this, value) {
    if ($this == null) dart.nullFailed(I[270], 786, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 786, 26, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "perspective", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#padding'] = function DomCSSStyleDeclarationExtension$124set$35padding($this, value) {
    if ($this == null) dart.nullFailed(I[270], 787, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 787, 22, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "padding", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#backgroundImage'] = function DomCSSStyleDeclarationExtension$124set$35backgroundImage($this, value) {
    if ($this == null) dart.nullFailed(I[270], 788, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 788, 30, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "background-image", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#border'] = function DomCSSStyleDeclarationExtension$124set$35border($this, value) {
    if ($this == null) dart.nullFailed(I[270], 789, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 789, 21, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "border", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#mixBlendMode'] = function DomCSSStyleDeclarationExtension$124set$35mixBlendMode($this, value) {
    if ($this == null) dart.nullFailed(I[270], 790, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 790, 27, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "mix-blend-mode", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#backgroundSize'] = function DomCSSStyleDeclarationExtension$124set$35backgroundSize($this, value) {
    if ($this == null) dart.nullFailed(I[270], 791, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 791, 29, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "background-size", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#backgroundBlendMode'] = function DomCSSStyleDeclarationExtension$124set$35backgroundBlendMode($this, value) {
    if ($this == null) dart.nullFailed(I[270], 792, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 792, 34, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "background-blend-mode", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#transformStyle'] = function DomCSSStyleDeclarationExtension$124set$35transformStyle($this, value) {
    if ($this == null) dart.nullFailed(I[270], 794, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 794, 29, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "transform-style", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#display'] = function DomCSSStyleDeclarationExtension$124set$35display($this, value) {
    if ($this == null) dart.nullFailed(I[270], 795, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 795, 22, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "display", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#flexDirection'] = function DomCSSStyleDeclarationExtension$124set$35flexDirection($this, value) {
    if ($this == null) dart.nullFailed(I[270], 796, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 796, 28, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "flex-direction", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#alignItems'] = function DomCSSStyleDeclarationExtension$124set$35alignItems($this, value) {
    if ($this == null) dart.nullFailed(I[270], 797, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 797, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "align-items", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#margin'] = function DomCSSStyleDeclarationExtension$124set$35margin($this, value) {
    if ($this == null) dart.nullFailed(I[270], 798, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 798, 21, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "margin", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#background'] = function DomCSSStyleDeclarationExtension$124set$35background($this, value) {
    if ($this == null) dart.nullFailed(I[270], 799, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 799, 25, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "background", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#touchAction'] = function DomCSSStyleDeclarationExtension$124set$35touchAction($this, value) {
    if ($this == null) dart.nullFailed(I[270], 800, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 800, 26, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "touch-action", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#overflowY'] = function DomCSSStyleDeclarationExtension$124set$35overflowY($this, value) {
    if ($this == null) dart.nullFailed(I[270], 801, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 801, 24, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "overflow-y", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#overflowX'] = function DomCSSStyleDeclarationExtension$124set$35overflowX($this, value) {
    if ($this == null) dart.nullFailed(I[270], 802, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 802, 24, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "overflow-x", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#outline'] = function DomCSSStyleDeclarationExtension$124set$35outline($this, value) {
    if ($this == null) dart.nullFailed(I[270], 803, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 803, 22, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "outline", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#resize'] = function DomCSSStyleDeclarationExtension$124set$35resize($this, value) {
    if ($this == null) dart.nullFailed(I[270], 804, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 804, 21, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "resize", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#alignContent'] = function DomCSSStyleDeclarationExtension$124set$35alignContent($this, value) {
    if ($this == null) dart.nullFailed(I[270], 805, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 805, 27, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "align-content", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#textAlign'] = function DomCSSStyleDeclarationExtension$124set$35textAlign($this, value) {
    if ($this == null) dart.nullFailed(I[270], 806, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 806, 24, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "text-align", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#font'] = function DomCSSStyleDeclarationExtension$124set$35font($this, value) {
    if ($this == null) dart.nullFailed(I[270], 807, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 807, 19, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "font", value);
  };
  _engine['DomCSSStyleDeclarationExtension|set#cursor'] = function DomCSSStyleDeclarationExtension$124set$35cursor($this, value) {
    if ($this == null) dart.nullFailed(I[270], 808, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 808, 21, "value");
    return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, "cursor", value);
  };
  _engine['DomCSSStyleDeclarationExtension|get#width'] = function DomCSSStyleDeclarationExtension$124get$35width($this) {
    if ($this == null) dart.nullFailed(I[270], 809, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "width");
  };
  _engine['DomCSSStyleDeclarationExtension|get#height'] = function DomCSSStyleDeclarationExtension$124get$35height($this) {
    if ($this == null) dart.nullFailed(I[270], 810, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "height");
  };
  _engine['DomCSSStyleDeclarationExtension|get#position'] = function DomCSSStyleDeclarationExtension$124get$35position($this) {
    if ($this == null) dart.nullFailed(I[270], 811, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "position");
  };
  _engine['DomCSSStyleDeclarationExtension|get#clip'] = function DomCSSStyleDeclarationExtension$124get$35clip($this) {
    if ($this == null) dart.nullFailed(I[270], 812, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "clip");
  };
  _engine['DomCSSStyleDeclarationExtension|get#clipPath'] = function DomCSSStyleDeclarationExtension$124get$35clipPath($this) {
    if ($this == null) dart.nullFailed(I[270], 813, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "clip-path");
  };
  _engine['DomCSSStyleDeclarationExtension|get#transform'] = function DomCSSStyleDeclarationExtension$124get$35transform($this) {
    if ($this == null) dart.nullFailed(I[270], 814, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "transform");
  };
  _engine['DomCSSStyleDeclarationExtension|get#transformOrigin'] = function DomCSSStyleDeclarationExtension$124get$35transformOrigin($this) {
    if ($this == null) dart.nullFailed(I[270], 815, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "transform-origin");
  };
  _engine['DomCSSStyleDeclarationExtension|get#opacity'] = function DomCSSStyleDeclarationExtension$124get$35opacity($this) {
    if ($this == null) dart.nullFailed(I[270], 816, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "opacity");
  };
  _engine['DomCSSStyleDeclarationExtension|get#color'] = function DomCSSStyleDeclarationExtension$124get$35color($this) {
    if ($this == null) dart.nullFailed(I[270], 817, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "color");
  };
  _engine['DomCSSStyleDeclarationExtension|get#top'] = function DomCSSStyleDeclarationExtension$124get$35top($this) {
    if ($this == null) dart.nullFailed(I[270], 818, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "top");
  };
  _engine['DomCSSStyleDeclarationExtension|get#left'] = function DomCSSStyleDeclarationExtension$124get$35left($this) {
    if ($this == null) dart.nullFailed(I[270], 819, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "left");
  };
  _engine['DomCSSStyleDeclarationExtension|get#right'] = function DomCSSStyleDeclarationExtension$124get$35right($this) {
    if ($this == null) dart.nullFailed(I[270], 820, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "right");
  };
  _engine['DomCSSStyleDeclarationExtension|get#bottom'] = function DomCSSStyleDeclarationExtension$124get$35bottom($this) {
    if ($this == null) dart.nullFailed(I[270], 821, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "bottom");
  };
  _engine['DomCSSStyleDeclarationExtension|get#backgroundColor'] = function DomCSSStyleDeclarationExtension$124get$35backgroundColor($this) {
    if ($this == null) dart.nullFailed(I[270], 822, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "background-color");
  };
  _engine['DomCSSStyleDeclarationExtension|get#caretColor'] = function DomCSSStyleDeclarationExtension$124get$35caretColor($this) {
    if ($this == null) dart.nullFailed(I[270], 823, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "caret-color");
  };
  _engine['DomCSSStyleDeclarationExtension|get#pointerEvents'] = function DomCSSStyleDeclarationExtension$124get$35pointerEvents($this) {
    if ($this == null) dart.nullFailed(I[270], 824, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "pointer-events");
  };
  _engine['DomCSSStyleDeclarationExtension|get#filter'] = function DomCSSStyleDeclarationExtension$124get$35filter($this) {
    if ($this == null) dart.nullFailed(I[270], 825, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "filter");
  };
  _engine['DomCSSStyleDeclarationExtension|get#zIndex'] = function DomCSSStyleDeclarationExtension$124get$35zIndex($this) {
    if ($this == null) dart.nullFailed(I[270], 826, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "z-index");
  };
  _engine['DomCSSStyleDeclarationExtension|get#whiteSpace'] = function DomCSSStyleDeclarationExtension$124get$35whiteSpace($this) {
    if ($this == null) dart.nullFailed(I[270], 827, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "white-space");
  };
  _engine['DomCSSStyleDeclarationExtension|get#lineHeight'] = function DomCSSStyleDeclarationExtension$124get$35lineHeight($this) {
    if ($this == null) dart.nullFailed(I[270], 828, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "line-height");
  };
  _engine['DomCSSStyleDeclarationExtension|get#textStroke'] = function DomCSSStyleDeclarationExtension$124get$35textStroke($this) {
    if ($this == null) dart.nullFailed(I[270], 829, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "-webkit-text-stroke");
  };
  _engine['DomCSSStyleDeclarationExtension|get#fontSize'] = function DomCSSStyleDeclarationExtension$124get$35fontSize($this) {
    if ($this == null) dart.nullFailed(I[270], 830, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "font-size");
  };
  _engine['DomCSSStyleDeclarationExtension|get#fontWeight'] = function DomCSSStyleDeclarationExtension$124get$35fontWeight($this) {
    if ($this == null) dart.nullFailed(I[270], 831, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "font-weight");
  };
  _engine['DomCSSStyleDeclarationExtension|get#fontStyle'] = function DomCSSStyleDeclarationExtension$124get$35fontStyle($this) {
    if ($this == null) dart.nullFailed(I[270], 832, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "font-style");
  };
  _engine['DomCSSStyleDeclarationExtension|get#fontFamily'] = function DomCSSStyleDeclarationExtension$124get$35fontFamily($this) {
    if ($this == null) dart.nullFailed(I[270], 833, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "font-family");
  };
  _engine['DomCSSStyleDeclarationExtension|get#letterSpacing'] = function DomCSSStyleDeclarationExtension$124get$35letterSpacing($this) {
    if ($this == null) dart.nullFailed(I[270], 834, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "letter-spacing");
  };
  _engine['DomCSSStyleDeclarationExtension|get#wordSpacing'] = function DomCSSStyleDeclarationExtension$124get$35wordSpacing($this) {
    if ($this == null) dart.nullFailed(I[270], 835, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "word-spacing");
  };
  _engine['DomCSSStyleDeclarationExtension|get#textShadow'] = function DomCSSStyleDeclarationExtension$124get$35textShadow($this) {
    if ($this == null) dart.nullFailed(I[270], 836, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "text-shadow");
  };
  _engine['DomCSSStyleDeclarationExtension|get#textDecorationColor'] = function DomCSSStyleDeclarationExtension$124get$35textDecorationColor($this) {
    if ($this == null) dart.nullFailed(I[270], 837, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "text-decoration-color");
  };
  _engine['DomCSSStyleDeclarationExtension|get#fontFeatureSettings'] = function DomCSSStyleDeclarationExtension$124get$35fontFeatureSettings($this) {
    if ($this == null) dart.nullFailed(I[270], 838, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "font-feature-settings");
  };
  _engine['DomCSSStyleDeclarationExtension|get#fontVariationSettings'] = function DomCSSStyleDeclarationExtension$124get$35fontVariationSettings($this) {
    if ($this == null) dart.nullFailed(I[270], 839, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "font-variation-settings");
  };
  _engine['DomCSSStyleDeclarationExtension|get#visibility'] = function DomCSSStyleDeclarationExtension$124get$35visibility($this) {
    if ($this == null) dart.nullFailed(I[270], 841, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "visibility");
  };
  _engine['DomCSSStyleDeclarationExtension|get#overflow'] = function DomCSSStyleDeclarationExtension$124get$35overflow($this) {
    if ($this == null) dart.nullFailed(I[270], 842, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "overflow");
  };
  _engine['DomCSSStyleDeclarationExtension|get#boxShadow'] = function DomCSSStyleDeclarationExtension$124get$35boxShadow($this) {
    if ($this == null) dart.nullFailed(I[270], 843, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "box-shadow");
  };
  _engine['DomCSSStyleDeclarationExtension|get#borderTopLeftRadius'] = function DomCSSStyleDeclarationExtension$124get$35borderTopLeftRadius($this) {
    if ($this == null) dart.nullFailed(I[270], 844, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "border-top-left-radius");
  };
  _engine['DomCSSStyleDeclarationExtension|get#borderTopRightRadius'] = function DomCSSStyleDeclarationExtension$124get$35borderTopRightRadius($this) {
    if ($this == null) dart.nullFailed(I[270], 845, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "border-top-right-radius");
  };
  _engine['DomCSSStyleDeclarationExtension|get#borderBottomLeftRadius'] = function DomCSSStyleDeclarationExtension$124get$35borderBottomLeftRadius($this) {
    if ($this == null) dart.nullFailed(I[270], 847, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "border-bottom-left-radius");
  };
  _engine['DomCSSStyleDeclarationExtension|get#borderBottomRightRadius'] = function DomCSSStyleDeclarationExtension$124get$35borderBottomRightRadius($this) {
    if ($this == null) dart.nullFailed(I[270], 849, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "border-bottom-right-radius");
  };
  _engine['DomCSSStyleDeclarationExtension|get#borderRadius'] = function DomCSSStyleDeclarationExtension$124get$35borderRadius($this) {
    if ($this == null) dart.nullFailed(I[270], 851, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "border-radius");
  };
  _engine['DomCSSStyleDeclarationExtension|get#perspective'] = function DomCSSStyleDeclarationExtension$124get$35perspective($this) {
    if ($this == null) dart.nullFailed(I[270], 852, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "perspective");
  };
  _engine['DomCSSStyleDeclarationExtension|get#padding'] = function DomCSSStyleDeclarationExtension$124get$35padding($this) {
    if ($this == null) dart.nullFailed(I[270], 853, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "padding");
  };
  _engine['DomCSSStyleDeclarationExtension|get#backgroundImage'] = function DomCSSStyleDeclarationExtension$124get$35backgroundImage($this) {
    if ($this == null) dart.nullFailed(I[270], 854, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "background-image");
  };
  _engine['DomCSSStyleDeclarationExtension|get#border'] = function DomCSSStyleDeclarationExtension$124get$35border($this) {
    if ($this == null) dart.nullFailed(I[270], 855, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "border");
  };
  _engine['DomCSSStyleDeclarationExtension|get#mixBlendMode'] = function DomCSSStyleDeclarationExtension$124get$35mixBlendMode($this) {
    if ($this == null) dart.nullFailed(I[270], 856, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "mix-blend-mode");
  };
  _engine['DomCSSStyleDeclarationExtension|get#backgroundSize'] = function DomCSSStyleDeclarationExtension$124get$35backgroundSize($this) {
    if ($this == null) dart.nullFailed(I[270], 857, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "background-size");
  };
  _engine['DomCSSStyleDeclarationExtension|get#backgroundBlendMode'] = function DomCSSStyleDeclarationExtension$124get$35backgroundBlendMode($this) {
    if ($this == null) dart.nullFailed(I[270], 858, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "background-blend-mode");
  };
  _engine['DomCSSStyleDeclarationExtension|get#transformStyle'] = function DomCSSStyleDeclarationExtension$124get$35transformStyle($this) {
    if ($this == null) dart.nullFailed(I[270], 859, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "transform-style");
  };
  _engine['DomCSSStyleDeclarationExtension|get#display'] = function DomCSSStyleDeclarationExtension$124get$35display($this) {
    if ($this == null) dart.nullFailed(I[270], 860, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "display");
  };
  _engine['DomCSSStyleDeclarationExtension|get#flexDirection'] = function DomCSSStyleDeclarationExtension$124get$35flexDirection($this) {
    if ($this == null) dart.nullFailed(I[270], 861, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "flex-direction");
  };
  _engine['DomCSSStyleDeclarationExtension|get#alignItems'] = function DomCSSStyleDeclarationExtension$124get$35alignItems($this) {
    if ($this == null) dart.nullFailed(I[270], 862, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "align-items");
  };
  _engine['DomCSSStyleDeclarationExtension|get#margin'] = function DomCSSStyleDeclarationExtension$124get$35margin($this) {
    if ($this == null) dart.nullFailed(I[270], 863, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "margin");
  };
  _engine['DomCSSStyleDeclarationExtension|get#background'] = function DomCSSStyleDeclarationExtension$124get$35background($this) {
    if ($this == null) dart.nullFailed(I[270], 864, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "background");
  };
  _engine['DomCSSStyleDeclarationExtension|get#touchAction'] = function DomCSSStyleDeclarationExtension$124get$35touchAction($this) {
    if ($this == null) dart.nullFailed(I[270], 865, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "touch-action");
  };
  _engine['DomCSSStyleDeclarationExtension|get#overflowY'] = function DomCSSStyleDeclarationExtension$124get$35overflowY($this) {
    if ($this == null) dart.nullFailed(I[270], 866, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "overflow-y");
  };
  _engine['DomCSSStyleDeclarationExtension|get#overflowX'] = function DomCSSStyleDeclarationExtension$124get$35overflowX($this) {
    if ($this == null) dart.nullFailed(I[270], 867, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "overflow-x");
  };
  _engine['DomCSSStyleDeclarationExtension|get#outline'] = function DomCSSStyleDeclarationExtension$124get$35outline($this) {
    if ($this == null) dart.nullFailed(I[270], 868, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "outline");
  };
  _engine['DomCSSStyleDeclarationExtension|get#resize'] = function DomCSSStyleDeclarationExtension$124get$35resize($this) {
    if ($this == null) dart.nullFailed(I[270], 869, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "resize");
  };
  _engine['DomCSSStyleDeclarationExtension|get#alignContent'] = function DomCSSStyleDeclarationExtension$124get$35alignContent($this) {
    if ($this == null) dart.nullFailed(I[270], 870, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "align-content");
  };
  _engine['DomCSSStyleDeclarationExtension|get#textAlign'] = function DomCSSStyleDeclarationExtension$124get$35textAlign($this) {
    if ($this == null) dart.nullFailed(I[270], 871, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "text-align");
  };
  _engine['DomCSSStyleDeclarationExtension|get#font'] = function DomCSSStyleDeclarationExtension$124get$35font($this) {
    if ($this == null) dart.nullFailed(I[270], 872, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "font");
  };
  _engine['DomCSSStyleDeclarationExtension|get#cursor'] = function DomCSSStyleDeclarationExtension$124get$35cursor($this) {
    if ($this == null) dart.nullFailed(I[270], 873, 14, "#this");
    return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, "cursor");
  };
  _engine['DomCSSStyleDeclarationExtension|get#getPropertyValue'] = function DomCSSStyleDeclarationExtension$124get$35getPropertyValue($this) {
    if ($this == null) dart.nullFailed(I[270], 877, 10, "#this");
    return dart.fn(property => {
      if (property == null) dart.nullFailed(I[270], 877, 34, "property");
      return _engine['DomCSSStyleDeclarationExtension|getPropertyValue']($this, property);
    }, T$.StringToString());
  };
  _engine['DomCSSStyleDeclarationExtension|getPropertyValue'] = function DomCSSStyleDeclarationExtension$124getPropertyValue($this, property) {
    if ($this == null) dart.nullFailed(I[270], 877, 10, "#this");
    if (property == null) dart.nullFailed(I[270], 877, 34, "property");
    return js_interop['JSStringToString|get#toDart'](T$.String()[_as]($this.getPropertyValue(js_interop['StringToJSString|get#toJS'](property))));
  };
  _engine['DomCSSStyleDeclarationExtension|get#setProperty'] = function DomCSSStyleDeclarationExtension$124get$35setProperty($this) {
    if ($this == null) dart.nullFailed(I[270], 883, 8, "#this");
    return dart.fn((propertyName, value, priority = null) => {
      if (propertyName == null) dart.nullFailed(I[270], 883, 27, "propertyName");
      if (value == null) dart.nullFailed(I[270], 883, 48, "value");
      return _engine['DomCSSStyleDeclarationExtension|setProperty']($this, propertyName, value, priority);
    }, T$13.StringAndStringAndStringNTovoid());
  };
  _engine['DomCSSStyleDeclarationExtension|setProperty'] = function DomCSSStyleDeclarationExtension$124setProperty($this, propertyName, value, priority = null) {
    if ($this == null) dart.nullFailed(I[270], 883, 8, "#this");
    if (propertyName == null) dart.nullFailed(I[270], 883, 27, "propertyName");
    if (value == null) dart.nullFailed(I[270], 883, 48, "value");
    priority == null ? priority = "" : null;
    $this.setProperty(js_interop['StringToJSString|get#toJS'](propertyName), js_interop['StringToJSString|get#toJS'](value), js_interop['StringToJSString|get#toJS'](priority));
  };
  _engine['DomCSSStyleDeclarationExtension|removeProperty'] = function DomCSSStyleDeclarationExtension$124removeProperty($this, property) {
    if ($this == null) dart.nullFailed(I[270], 890, 10, "#this");
    if (property == null) dart.nullFailed(I[270], 890, 32, "property");
    return js_interop['JSStringToString|get#toDart'](T$.String()[_as]($this.removeProperty(js_interop['StringToJSString|get#toJS'](property))));
  };
  _engine['DomCSSStyleDeclarationExtension|get#removeProperty'] = function DomCSSStyleDeclarationExtension$124get$35removeProperty($this) {
    if ($this == null) dart.nullFailed(I[270], 890, 10, "#this");
    return dart.fn(property => {
      if (property == null) dart.nullFailed(I[270], 890, 32, "property");
      return _engine['DomCSSStyleDeclarationExtension|removeProperty']($this, property);
    }, T$.StringToString());
  };
  _engine['DomHTMLElementExtension|get#offsetWidth'] = function DomHTMLElementExtension$124get$35offsetWidth($this) {
    if ($this == null) dart.nullFailed(I[270], 901, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "offsetWidth"));
  };
  _engine['DomHTMLElementExtension|get#offsetLeft'] = function DomHTMLElementExtension$124get$35offsetLeft($this) {
    if ($this == null) dart.nullFailed(I[270], 905, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "offsetLeft"));
  };
  _engine['DomHTMLElementExtension|get#offsetTop'] = function DomHTMLElementExtension$124get$35offsetTop($this) {
    if ($this == null) dart.nullFailed(I[270], 909, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "offsetTop"));
  };
  _engine['DomHTMLMetaElementExtension|get#name'] = function DomHTMLMetaElementExtension$124get$35name($this) {
    if ($this == null) dart.nullFailed(I[270], 921, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "name"));
  };
  _engine['DomHTMLMetaElementExtension|set#name'] = function DomHTMLMetaElementExtension$124set$35name($this, value) {
    let t$361413;
    if ($this == null) dart.nullFailed(I[270], 925, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 925, 19, "value");
    t$361413 = js_interop['StringToJSString|get#toJS'](value);
    $this.name = t$361413;
    return t$361413;
  };
  _engine['DomHTMLMetaElementExtension|get#content'] = function DomHTMLMetaElementExtension$124get$35content($this) {
    if ($this == null) dart.nullFailed(I[270], 929, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "content"));
  };
  _engine['DomHTMLMetaElementExtension|set#content'] = function DomHTMLMetaElementExtension$124set$35content($this, value) {
    let t$361415;
    if ($this == null) dart.nullFailed(I[270], 933, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 933, 22, "value");
    t$361415 = js_interop['StringToJSString|get#toJS'](value);
    $this.content = t$361415;
    return t$361415;
  };
  _engine.createDomHTMLMetaElement = function createDomHTMLMetaElement() {
    return T$13.DomHTMLMetaElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "meta"));
  };
  _engine.createDomHTMLImageElement = function createDomHTMLImageElement() {
    return T$10.DomHTMLImageElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "img"));
  };
  _engine['DomHTMLImageElementExtension|get#alt'] = function DomHTMLImageElementExtension$124get$35alt($this) {
    let t$361416;
    if ($this == null) dart.nullFailed(I[270], 958, 15, "#this");
    t$361416 = js_util.getProperty(T$.StringN(), $this, "alt");
    return t$361416 == null ? null : js_interop['JSStringToString|get#toDart'](t$361416);
  };
  _engine['DomHTMLImageElementExtension|set#alt'] = function DomHTMLImageElementExtension$124set$35alt($this, value) {
    let t$361417, t$361417$;
    if ($this == null) dart.nullFailed(I[270], 962, 7, "#this");
    t$361417$ = (t$361417 = value, t$361417 == null ? null : js_interop['StringToJSString|get#toJS'](t$361417));
    $this.alt = t$361417$;
    return t$361417$;
  };
  _engine['DomHTMLImageElementExtension|get#src'] = function DomHTMLImageElementExtension$124get$35src($this) {
    let t$361418;
    if ($this == null) dart.nullFailed(I[270], 966, 15, "#this");
    t$361418 = js_util.getProperty(T$.StringN(), $this, "src");
    return t$361418 == null ? null : js_interop['JSStringToString|get#toDart'](t$361418);
  };
  _engine['DomHTMLImageElementExtension|set#src'] = function DomHTMLImageElementExtension$124set$35src($this, value) {
    let t$361419, t$361419$;
    if ($this == null) dart.nullFailed(I[270], 970, 7, "#this");
    t$361419$ = (t$361419 = value, t$361419 == null ? null : js_interop['StringToJSString|get#toJS'](t$361419));
    $this.src = t$361419$;
    return t$361419$;
  };
  _engine['DomHTMLImageElementExtension|get#naturalWidth'] = function DomHTMLImageElementExtension$124get$35naturalWidth($this) {
    if ($this == null) dart.nullFailed(I[270], 974, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "naturalWidth"));
  };
  _engine['DomHTMLImageElementExtension|get#naturalHeight'] = function DomHTMLImageElementExtension$124get$35naturalHeight($this) {
    if ($this == null) dart.nullFailed(I[270], 978, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "naturalHeight"));
  };
  _engine['DomHTMLImageElementExtension|set#width'] = function DomHTMLImageElementExtension$124set$35width($this, value) {
    let t$361422, t$361422$;
    if ($this == null) dart.nullFailed(I[270], 982, 7, "#this");
    t$361422$ = (t$361422 = value, t$361422 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361422));
    $this.width = t$361422$;
    return t$361422$;
  };
  _engine['DomHTMLImageElementExtension|set#height'] = function DomHTMLImageElementExtension$124set$35height($this, value) {
    let t$361423, t$361423$;
    if ($this == null) dart.nullFailed(I[270], 986, 7, "#this");
    t$361423$ = (t$361423 = value, t$361423 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361423));
    $this.height = t$361423$;
    return t$361423$;
  };
  _engine['DomHTMLImageElementExtension|decode'] = function DomHTMLImageElementExtension$124decode($this) {
    if ($this == null) dart.nullFailed(I[270], 990, 19, "#this");
    return js_util.promiseToFuture(T$.ObjectN(), T$3.JSObject()[_as]($this.decode()));
  };
  _engine['DomHTMLImageElementExtension|get#decode'] = function DomHTMLImageElementExtension$124get$35decode($this) {
    if ($this == null) dart.nullFailed(I[270], 990, 19, "#this");
    return dart.fn(() => _engine['DomHTMLImageElementExtension|decode']($this), T$13.VoidToFutureOfObjectN());
  };
  _engine['DomHTMLScriptElementExtension|set#src'] = function DomHTMLScriptElementExtension$124set$35src($this, value) {
    let t$361426;
    if ($this == null) dart.nullFailed(I[270], 1000, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 1000, 48, "value");
    t$361426 = _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](value);
    $this.src = t$361426;
    return t$361426;
  };
  _engine['DomHTMLScriptElementExtension|set#nonce'] = function DomHTMLScriptElementExtension$124set$35nonce($this, value) {
    let t$361427, t$361427$;
    if ($this == null) dart.nullFailed(I[270], 1005, 7, "#this");
    t$361427$ = (t$361427 = value, t$361427 == null ? null : js_interop['StringToJSString|get#toJS'](t$361427));
    $this.nonce = t$361427$;
    return t$361427$;
  };
  _engine.createDomHTMLScriptElement = function createDomHTMLScriptElement(nonce) {
    let script = T$13.DomHTMLScriptElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "script"));
    if (nonce != null) {
      _engine['DomHTMLScriptElementExtension|set#nonce'](script, nonce);
    }
    return script;
  };
  _engine.createDomHTMLDivElement = function createDomHTMLDivElement() {
    return T$13.DomHTMLDivElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "div"));
  };
  _engine.createDomHTMLSpanElement = function createDomHTMLSpanElement() {
    return T$13.DomHTMLSpanElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "span"));
  };
  _engine.createDomHTMLButtonElement = function createDomHTMLButtonElement() {
    return T$13.DomHTMLButtonElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "button"));
  };
  _engine.createDomHTMLParagraphElement = function createDomHTMLParagraphElement() {
    return T$13.DomHTMLParagraphElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "p"));
  };
  _engine['DomHTMLStyleElementExtension|set#type'] = function DomHTMLStyleElementExtension$124set$35type($this, value) {
    let t$361428, t$361428$;
    if ($this == null) dart.nullFailed(I[270], 1052, 7, "#this");
    t$361428$ = (t$361428 = value, t$361428 == null ? null : js_interop['StringToJSString|get#toJS'](t$361428));
    $this.type = t$361428$;
    return t$361428$;
  };
  _engine['DomHTMLStyleElementExtension|set#nonce'] = function DomHTMLStyleElementExtension$124set$35nonce($this, value) {
    let t$361429, t$361429$;
    if ($this == null) dart.nullFailed(I[270], 1056, 7, "#this");
    t$361429$ = (t$361429 = value, t$361429 == null ? null : js_interop['StringToJSString|get#toJS'](t$361429));
    $this.nonce = t$361429$;
    return t$361429$;
  };
  _engine['DomHTMLStyleElementExtension|get#nonce'] = function DomHTMLStyleElementExtension$124get$35nonce($this) {
    let t$361430;
    if ($this == null) dart.nullFailed(I[270], 1060, 15, "#this");
    t$361430 = js_util.getProperty(T$.StringN(), $this, "nonce");
    return t$361430 == null ? null : js_interop['JSStringToString|get#toDart'](t$361430);
  };
  _engine.createDomHTMLStyleElement = function createDomHTMLStyleElement(nonce) {
    let style = T$13.DomHTMLStyleElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "style"));
    if (nonce != null) {
      _engine['DomHTMLStyleElementExtension|set#nonce'](style, nonce);
    }
    return style;
  };
  _engine['DomPerformanceExtension|mark'] = function DomPerformanceExtension$124mark($this, markName) {
    if ($this == null) dart.nullFailed(I[270], 1081, 24, "#this");
    if (markName == null) dart.nullFailed(I[270], 1081, 36, "markName");
    return T$13.DomPerformanceEntryN()[_as]($this.mark(js_interop['StringToJSString|get#toJS'](markName)));
  };
  _engine['DomPerformanceExtension|get#mark'] = function DomPerformanceExtension$124get$35mark($this) {
    if ($this == null) dart.nullFailed(I[270], 1081, 24, "#this");
    return dart.fn(markName => {
      if (markName == null) dart.nullFailed(I[270], 1081, 36, "markName");
      return _engine['DomPerformanceExtension|mark']($this, markName);
    }, T$13.StringToDomPerformanceEntryN());
  };
  _engine['DomPerformanceExtension|measure'] = function DomPerformanceExtension$124measure($this, measureName, startMark, endMark) {
    let t$361433, t$361433$;
    if ($this == null) dart.nullFailed(I[270], 1086, 26, "#this");
    if (measureName == null) dart.nullFailed(I[270], 1087, 18, "measureName");
    return T$13.DomPerformanceMeasureN()[_as]($this.measure(js_interop['StringToJSString|get#toJS'](measureName), (t$361433 = startMark, t$361433 == null ? null : js_interop['StringToJSString|get#toJS'](t$361433)), (t$361433$ = endMark, t$361433$ == null ? null : js_interop['StringToJSString|get#toJS'](t$361433$))));
  };
  _engine['DomPerformanceExtension|get#measure'] = function DomPerformanceExtension$124get$35measure($this) {
    if ($this == null) dart.nullFailed(I[270], 1086, 26, "#this");
    return dart.fn((measureName, startMark, endMark) => {
      if (measureName == null) dart.nullFailed(I[270], 1087, 18, "measureName");
      return _engine['DomPerformanceExtension|measure']($this, measureName, startMark, endMark);
    }, T$13.StringAndStringNAndStringNToDomPerformanceMeasureN());
  };
  _engine['DomPerformanceExtension|now'] = function DomPerformanceExtension$124now($this) {
    if ($this == null) dart.nullFailed(I[270], 1092, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.now()));
  };
  _engine['DomPerformanceExtension|get#now'] = function DomPerformanceExtension$124get$35now($this) {
    if ($this == null) dart.nullFailed(I[270], 1092, 10, "#this");
    return dart.fn(() => _engine['DomPerformanceExtension|now']($this), T$.VoidTodouble());
  };
  _engine.debugResetCanvasCount = function debugResetCanvasCount() {
    _engine.debugCanvasCount = 0;
  };
  _engine.createDomCanvasElement = function createDomCanvasElement(opts) {
    let width = opts && 'width' in opts ? opts.width : null;
    let height = opts && 'height' in opts ? opts.height : null;
    _engine.debugCanvasCount = dart.notNull(_engine.debugCanvasCount) + 1;
    let canvas = T$9.DomCanvasElement()[_as](_engine['DomDocumentExtension|createElement'](js_util.getProperty(T$9.DomDocument(), dart.jsInteropNullCheck(dart.global.window), "document"), "canvas"));
    if (width != null) {
      _engine['DomCanvasElementExtension|set#width'](canvas, width[$toDouble]());
    }
    if (height != null) {
      _engine['DomCanvasElementExtension|set#height'](canvas, height[$toDouble]());
    }
    return canvas;
  };
  _engine['DomCanvasElementExtension|get#width'] = function DomCanvasElementExtension$124get$35width($this) {
    let t$361437;
    if ($this == null) dart.nullFailed(I[270], 1131, 15, "#this");
    t$361437 = js_util.getProperty(T$9.doubleN(), $this, "width");
    return t$361437 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361437);
  };
  _engine['DomCanvasElementExtension|set#width'] = function DomCanvasElementExtension$124set$35width($this, value) {
    let t$361438, t$361438$;
    if ($this == null) dart.nullFailed(I[270], 1135, 7, "#this");
    t$361438$ = (t$361438 = value, t$361438 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361438));
    $this.width = t$361438$;
    return t$361438$;
  };
  _engine['DomCanvasElementExtension|get#height'] = function DomCanvasElementExtension$124get$35height($this) {
    let t$361439;
    if ($this == null) dart.nullFailed(I[270], 1139, 15, "#this");
    t$361439 = js_util.getProperty(T$9.doubleN(), $this, "height");
    return t$361439 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361439);
  };
  _engine['DomCanvasElementExtension|set#height'] = function DomCanvasElementExtension$124set$35height($this, value) {
    let t$361440, t$361440$;
    if ($this == null) dart.nullFailed(I[270], 1143, 7, "#this");
    t$361440$ = (t$361440 = value, t$361440 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361440));
    $this.height = t$361440$;
    return t$361440$;
  };
  _engine['DomCanvasElementExtension|get#isConnected'] = function DomCanvasElementExtension$124get$35isConnected($this) {
    let t$361441;
    if ($this == null) dart.nullFailed(I[270], 1147, 13, "#this");
    t$361441 = js_util.getProperty(T$.boolN(), $this, "isConnected");
    return t$361441 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361441);
  };
  _engine['DomCanvasElementExtension|toDataURL'] = function DomCanvasElementExtension$124toDataURL($this, type = "image/png") {
    if ($this == null) dart.nullFailed(I[270], 1151, 10, "#this");
    if (type == null) dart.nullFailed(I[270], 1151, 28, "type");
    return js_interop['JSStringToString|get#toDart'](T$.String()[_as]($this.toDataURL(js_interop['StringToJSString|get#toJS'](type))));
  };
  _engine['DomCanvasElementExtension|get#toDataURL'] = function DomCanvasElementExtension$124get$35toDataURL($this) {
    if ($this == null) dart.nullFailed(I[270], 1151, 10, "#this");
    return dart.fn((type = "image/png") => {
      if (type == null) dart.nullFailed(I[270], 1151, 28, "type");
      return _engine['DomCanvasElementExtension|toDataURL']($this, type);
    }, T$.StringToString$1());
  };
  _engine['DomCanvasElementExtension|getContext'] = function DomCanvasElementExtension$124getContext($this, contextType, attributes = null) {
    if ($this == null) dart.nullFailed(I[270], 1157, 11, "#this");
    if (contextType == null) dart.nullFailed(I[270], 1157, 29, "contextType");
    if (attributes == null) {
      return $this.getContext(js_interop['StringToJSString|get#toJS'](contextType));
    } else {
      return $this.getContext(js_interop['StringToJSString|get#toJS'](contextType), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](attributes));
    }
  };
  _engine['DomCanvasElementExtension|get#getContext'] = function DomCanvasElementExtension$124get$35getContext($this) {
    if ($this == null) dart.nullFailed(I[270], 1157, 11, "#this");
    return dart.fn((contextType, attributes = null) => {
      if (contextType == null) dart.nullFailed(I[270], 1157, 29, "contextType");
      return _engine['DomCanvasElementExtension|getContext']($this, contextType, attributes);
    }, T$4.StringAndMapNToObjectN());
  };
  _engine['DomCanvasElementExtension|get#context2D'] = function DomCanvasElementExtension$124get$35context2D($this) {
    if ($this == null) dart.nullFailed(I[270], 1165, 35, "#this");
    return T$9.DomCanvasRenderingContext2D()[_as](dart.nullCheck(_engine['DomCanvasElementExtension|getContext']($this, "2d")));
  };
  _engine['DomCanvasElementExtension|getGlContext'] = function DomCanvasElementExtension$124getGlContext($this, majorVersion) {
    if ($this == null) dart.nullFailed(I[270], 1168, 16, "#this");
    if (majorVersion == null) dart.nullFailed(I[270], 1168, 33, "majorVersion");
    if (majorVersion === 1) {
      return T$13.WebGLContext()[_as](dart.nullCheck(_engine['DomCanvasElementExtension|getContext']($this, "webgl")));
    }
    return T$13.WebGLContext()[_as](dart.nullCheck(_engine['DomCanvasElementExtension|getContext']($this, "webgl2")));
  };
  _engine['DomCanvasElementExtension|get#getGlContext'] = function DomCanvasElementExtension$124get$35getGlContext($this) {
    if ($this == null) dart.nullFailed(I[270], 1168, 16, "#this");
    return dart.fn(majorVersion => {
      if (majorVersion == null) dart.nullFailed(I[270], 1168, 33, "majorVersion");
      return _engine['DomCanvasElementExtension|getGlContext']($this, majorVersion);
    }, T$13.intToWebGLContext());
  };
  _engine['DomCanvasElementExtension|get#contextBitmapRenderer'] = function DomCanvasElementExtension$124get$35contextBitmapRenderer($this) {
    if ($this == null) dart.nullFailed(I[270], 1175, 47, "#this");
    return T$10.DomCanvasRenderingContextBitmapRenderer()[_as](dart.nullCheck(_engine['DomCanvasElementExtension|getContext']($this, "bitmaprenderer")));
  };
  _engine['WebGLContextExtension|getParameter'] = function WebGLContextExtension$124getParameter($this, value) {
    if ($this == null) dart.nullFailed(I[270], 1186, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 1186, 24, "value");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.getParameter(js_interop['NumToJSExtension|get#toJS'](value))))[$toInt]();
  };
  _engine['WebGLContextExtension|get#getParameter'] = function WebGLContextExtension$124get$35getParameter($this) {
    if ($this == null) dart.nullFailed(I[270], 1186, 7, "#this");
    return dart.fn(value => {
      if (value == null) dart.nullFailed(I[270], 1186, 24, "value");
      return _engine['WebGLContextExtension|getParameter']($this, value);
    }, T$.intToint());
  };
  _engine['WebGLContextExtension|get#samples'] = function WebGLContextExtension$124get$35samples($this) {
    if ($this == null) dart.nullFailed(I[270], 1190, 11, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "SAMPLES"))[$toInt]();
  };
  _engine['WebGLContextExtension|get#stencilBits'] = function WebGLContextExtension$124get$35stencilBits($this) {
    if ($this == null) dart.nullFailed(I[270], 1194, 11, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "STENCIL_BITS"))[$toInt]();
  };
  _engine['DomCanvasRenderingContext2DExtension|get#fillStyle'] = function DomCanvasRenderingContext2DExtension$124get$35fillStyle($this) {
    let t$361454;
    if ($this == null) dart.nullFailed(I[270], 1210, 15, "#this");
    t$361454 = js_util.getProperty(T$.ObjectN(), $this, "fillStyle");
    return t$361454 == null ? null : _engine['JSAnyToObjectExtension|get#toObjectShallow'](t$361454);
  };
  _engine['DomCanvasRenderingContext2DExtension|set#fillStyle'] = function DomCanvasRenderingContext2DExtension$124set$35fillStyle($this, style) {
    let t$361455, t$361455$;
    if ($this == null) dart.nullFailed(I[270], 1214, 7, "#this");
    t$361455$ = (t$361455 = style, t$361455 == null ? null : _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](t$361455));
    $this.fillStyle = t$361455$;
    return t$361455$;
  };
  _engine['DomCanvasRenderingContext2DExtension|get#font'] = function DomCanvasRenderingContext2DExtension$124get$35font($this) {
    if ($this == null) dart.nullFailed(I[270], 1218, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "font"));
  };
  _engine['DomCanvasRenderingContext2DExtension|set#font'] = function DomCanvasRenderingContext2DExtension$124set$35font($this, value) {
    let t$361457;
    if ($this == null) dart.nullFailed(I[270], 1222, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 1222, 19, "value");
    t$361457 = js_interop['StringToJSString|get#toJS'](value);
    $this.font = t$361457;
    return t$361457;
  };
  _engine['DomCanvasRenderingContext2DExtension|get#direction'] = function DomCanvasRenderingContext2DExtension$124get$35direction($this) {
    if ($this == null) dart.nullFailed(I[270], 1226, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "direction"));
  };
  _engine['DomCanvasRenderingContext2DExtension|set#direction'] = function DomCanvasRenderingContext2DExtension$124set$35direction($this, value) {
    let t$361459;
    if ($this == null) dart.nullFailed(I[270], 1230, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 1230, 24, "value");
    t$361459 = js_interop['StringToJSString|get#toJS'](value);
    $this.direction = t$361459;
    return t$361459;
  };
  _engine['DomCanvasRenderingContext2DExtension|set#lineWidth'] = function DomCanvasRenderingContext2DExtension$124set$35lineWidth($this, value) {
    let t$361460, t$361460$;
    if ($this == null) dart.nullFailed(I[270], 1234, 7, "#this");
    t$361460$ = (t$361460 = value, t$361460 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$361460));
    $this.lineWidth = t$361460$;
    return t$361460$;
  };
  _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'] = function DomCanvasRenderingContext2DExtension$124set$35strokeStyle($this, value) {
    let t$361461, t$361461$;
    if ($this == null) dart.nullFailed(I[270], 1238, 7, "#this");
    t$361461$ = (t$361461 = value, t$361461 == null ? null : _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](t$361461));
    $this.strokeStyle = t$361461$;
    return t$361461$;
  };
  _engine['DomCanvasRenderingContext2DExtension|get#strokeStyle'] = function DomCanvasRenderingContext2DExtension$124get$35strokeStyle($this) {
    let t$361462;
    if ($this == null) dart.nullFailed(I[270], 1242, 15, "#this");
    t$361462 = js_util.getProperty(T$.ObjectN(), $this, "strokeStyle");
    return t$361462 == null ? null : _engine['JSAnyToObjectExtension|get#toObjectShallow'](t$361462);
  };
  _engine['DomCanvasRenderingContext2DExtension|createLinearGradient'] = function DomCanvasRenderingContext2DExtension$124createLinearGradient($this, x0, y0, x1, y1) {
    if ($this == null) dart.nullFailed(I[270], 1250, 21, "#this");
    if (x0 == null) dart.nullFailed(I[270], 1250, 46, "x0");
    if (y0 == null) dart.nullFailed(I[270], 1250, 54, "y0");
    if (x1 == null) dart.nullFailed(I[270], 1250, 62, "x1");
    if (y1 == null) dart.nullFailed(I[270], 1250, 70, "y1");
    return T$13.DomCanvasGradient()[_as]($this.createLinearGradient(js_interop['NumToJSExtension|get#toJS'](x0), js_interop['NumToJSExtension|get#toJS'](y0), js_interop['NumToJSExtension|get#toJS'](x1), js_interop['NumToJSExtension|get#toJS'](y1)));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#createLinearGradient'] = function DomCanvasRenderingContext2DExtension$124get$35createLinearGradient($this) {
    if ($this == null) dart.nullFailed(I[270], 1250, 21, "#this");
    return dart.fn((x0, y0, x1, y1) => {
      if (x0 == null) dart.nullFailed(I[270], 1250, 46, "x0");
      if (y0 == null) dart.nullFailed(I[270], 1250, 54, "y0");
      if (x1 == null) dart.nullFailed(I[270], 1250, 62, "x1");
      if (y1 == null) dart.nullFailed(I[270], 1250, 70, "y1");
      return _engine['DomCanvasRenderingContext2DExtension|createLinearGradient']($this, x0, y0, x1, y1);
    }, T$13.numAndnumAndnum__ToDomCanvasGradient());
  };
  _engine['DomCanvasRenderingContext2DExtension|createPattern'] = function DomCanvasRenderingContext2DExtension$124createPattern($this, image, reptitionType) {
    if ($this == null) dart.nullFailed(I[270], 1256, 21, "#this");
    if (image == null) dart.nullFailed(I[270], 1256, 42, "image");
    if (reptitionType == null) dart.nullFailed(I[270], 1256, 56, "reptitionType");
    return T$13.DomCanvasPatternN()[_as]($this.createPattern(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](image), js_interop['StringToJSString|get#toJS'](reptitionType)));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#createPattern'] = function DomCanvasRenderingContext2DExtension$124get$35createPattern($this) {
    if ($this == null) dart.nullFailed(I[270], 1256, 21, "#this");
    return dart.fn((image, reptitionType) => {
      if (image == null) dart.nullFailed(I[270], 1256, 42, "image");
      if (reptitionType == null) dart.nullFailed(I[270], 1256, 56, "reptitionType");
      return _engine['DomCanvasRenderingContext2DExtension|createPattern']($this, image, reptitionType);
    }, T$13.ObjectAndStringToDomCanvasPatternN());
  };
  _engine['DomCanvasRenderingContext2DExtension|createRadialGradient'] = function DomCanvasRenderingContext2DExtension$124createRadialGradient($this, x0, y0, r0, x1, y1, r1) {
    if ($this == null) dart.nullFailed(I[270], 1262, 21, "#this");
    if (x0 == null) dart.nullFailed(I[270], 1263, 15, "x0");
    if (y0 == null) dart.nullFailed(I[270], 1263, 23, "y0");
    if (r0 == null) dart.nullFailed(I[270], 1263, 31, "r0");
    if (x1 == null) dart.nullFailed(I[270], 1263, 39, "x1");
    if (y1 == null) dart.nullFailed(I[270], 1263, 47, "y1");
    if (r1 == null) dart.nullFailed(I[270], 1263, 55, "r1");
    return js_util.callMethod(T$13.DomCanvasGradient(), $this, "createRadialGradient", [js_interop['NumToJSExtension|get#toJS'](x0), js_interop['NumToJSExtension|get#toJS'](y0), js_interop['NumToJSExtension|get#toJS'](r0), js_interop['NumToJSExtension|get#toJS'](x1), js_interop['NumToJSExtension|get#toJS'](y1), js_interop['NumToJSExtension|get#toJS'](r1)]);
  };
  _engine['DomCanvasRenderingContext2DExtension|get#createRadialGradient'] = function DomCanvasRenderingContext2DExtension$124get$35createRadialGradient($this) {
    if ($this == null) dart.nullFailed(I[270], 1262, 21, "#this");
    return dart.fn((x0, y0, r0, x1, y1, r1) => {
      if (x0 == null) dart.nullFailed(I[270], 1263, 15, "x0");
      if (y0 == null) dart.nullFailed(I[270], 1263, 23, "y0");
      if (r0 == null) dart.nullFailed(I[270], 1263, 31, "r0");
      if (x1 == null) dart.nullFailed(I[270], 1263, 39, "x1");
      if (y1 == null) dart.nullFailed(I[270], 1263, 47, "y1");
      if (r1 == null) dart.nullFailed(I[270], 1263, 55, "r1");
      return _engine['DomCanvasRenderingContext2DExtension|createRadialGradient']($this, x0, y0, r0, x1, y1, r1);
    }, T$13.numAndnumAndnum__ToDomCanvasGradient$1());
  };
  _engine['DomCanvasRenderingContext2DExtension|drawImage'] = function DomCanvasRenderingContext2DExtension$124drawImage($this, source, srcxOrDstX, srcyOrDstY, srcWidth = null, srcHeight = null, dstX = null, dstY = null, dstWidth = null, dstHeight = null) {
    if ($this == null) dart.nullFailed(I[270], 1282, 8, "#this");
    if (source == null) dart.nullFailed(I[270], 1283, 26, "source");
    if (srcxOrDstX == null) dart.nullFailed(I[270], 1284, 9, "srcxOrDstX");
    if (srcyOrDstY == null) dart.nullFailed(I[270], 1285, 9, "srcyOrDstY");
    if (srcWidth == null) {
      return $this.drawImage(source, js_interop['NumToJSExtension|get#toJS'](srcxOrDstX), js_interop['NumToJSExtension|get#toJS'](srcyOrDstY));
    } else {
      if (!(srcHeight != null && dstX != null && dstY != null && dstWidth != null && dstHeight != null)) dart.assertFailed(null, I[270], 1297, 14, "srcHeight != null &&\n          dstX != null &&\n          dstY != null &&\n          dstWidth != null &&\n          dstHeight != null");
      return js_util.callMethod(T$.void(), $this, "drawImage", [source, js_interop['NumToJSExtension|get#toJS'](srcxOrDstX), js_interop['NumToJSExtension|get#toJS'](srcyOrDstY), js_interop['NumToJSExtension|get#toJS'](srcWidth), js_interop['NumToJSExtension|get#toJS'](dart.nullCheck(srcHeight)), js_interop['NumToJSExtension|get#toJS'](dart.nullCheck(dstX)), js_interop['NumToJSExtension|get#toJS'](dart.nullCheck(dstY)), js_interop['NumToJSExtension|get#toJS'](dart.nullCheck(dstWidth)), js_interop['NumToJSExtension|get#toJS'](dart.nullCheck(dstHeight))]);
    }
  };
  _engine['DomCanvasRenderingContext2DExtension|get#drawImage'] = function DomCanvasRenderingContext2DExtension$124get$35drawImage($this) {
    if ($this == null) dart.nullFailed(I[270], 1282, 8, "#this");
    return dart.fn((source, srcxOrDstX, srcyOrDstY, srcWidth = null, srcHeight = null, dstX = null, dstY = null, dstWidth = null, dstHeight = null) => {
      if (source == null) dart.nullFailed(I[270], 1283, 26, "source");
      if (srcxOrDstX == null) dart.nullFailed(I[270], 1284, 9, "srcxOrDstX");
      if (srcyOrDstY == null) dart.nullFailed(I[270], 1285, 9, "srcyOrDstY");
      return _engine['DomCanvasRenderingContext2DExtension|drawImage']($this, source, srcxOrDstX, srcyOrDstY, srcWidth, srcHeight, dstX, dstY, dstWidth, dstHeight);
    }, T$13.DomCanvasImageSourceAndnumAndnum__Tovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|fill'] = function DomCanvasRenderingContext2DExtension$124fill($this, pathOrWinding = null) {
    if ($this == null) dart.nullFailed(I[270], 1320, 8, "#this");
    if (pathOrWinding == null) {
      $this.fill();
    } else {
      $this.fill(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](pathOrWinding));
    }
  };
  _engine['DomCanvasRenderingContext2DExtension|get#fill'] = function DomCanvasRenderingContext2DExtension$124get$35fill($this) {
    if ($this == null) dart.nullFailed(I[270], 1320, 8, "#this");
    return dart.fn((pathOrWinding = null) => _engine['DomCanvasRenderingContext2DExtension|fill']($this, pathOrWinding), T$0.ObjectNTovoid$1());
  };
  _engine['DomCanvasRenderingContext2DExtension|fillRect'] = function DomCanvasRenderingContext2DExtension$124fillRect($this, x, y, width, height) {
    if ($this == null) dart.nullFailed(I[270], 1331, 8, "#this");
    if (x == null) dart.nullFailed(I[270], 1331, 21, "x");
    if (y == null) dart.nullFailed(I[270], 1331, 28, "y");
    if (width == null) dart.nullFailed(I[270], 1331, 35, "width");
    if (height == null) dart.nullFailed(I[270], 1331, 46, "height");
    return $this.fillRect(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y), js_interop['NumToJSExtension|get#toJS'](width), js_interop['NumToJSExtension|get#toJS'](height));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#fillRect'] = function DomCanvasRenderingContext2DExtension$124get$35fillRect($this) {
    if ($this == null) dart.nullFailed(I[270], 1331, 8, "#this");
    return dart.fn((x, y, width, height) => {
      if (x == null) dart.nullFailed(I[270], 1331, 21, "x");
      if (y == null) dart.nullFailed(I[270], 1331, 28, "y");
      if (width == null) dart.nullFailed(I[270], 1331, 35, "width");
      if (height == null) dart.nullFailed(I[270], 1331, 46, "height");
      return _engine['DomCanvasRenderingContext2DExtension|fillRect']($this, x, y, width, height);
    }, T$4.numAndnumAndnum__Tovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|get#fillText'] = function DomCanvasRenderingContext2DExtension$124get$35fillText($this) {
    if ($this == null) dart.nullFailed(I[270], 1339, 8, "#this");
    return dart.fn((text, x, y, maxWidth = null) => {
      if (text == null) dart.nullFailed(I[270], 1339, 24, "text");
      if (x == null) dart.nullFailed(I[270], 1339, 34, "x");
      if (y == null) dart.nullFailed(I[270], 1339, 41, "y");
      return _engine['DomCanvasRenderingContext2DExtension|fillText']($this, text, x, y, maxWidth);
    }, T$4.StringAndnumAndnum__Tovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|fillText'] = function DomCanvasRenderingContext2DExtension$124fillText($this, text, x, y, maxWidth = null) {
    if ($this == null) dart.nullFailed(I[270], 1339, 8, "#this");
    if (text == null) dart.nullFailed(I[270], 1339, 24, "text");
    if (x == null) dart.nullFailed(I[270], 1339, 34, "x");
    if (y == null) dart.nullFailed(I[270], 1339, 41, "y");
    if (maxWidth == null) {
      $this.fillText(js_interop['StringToJSString|get#toJS'](text), js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y));
    } else {
      $this.fillText(js_interop['StringToJSString|get#toJS'](text), js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y), js_interop['NumToJSExtension|get#toJS'](maxWidth));
    }
  };
  _engine['DomCanvasRenderingContext2DExtension|get#getImageData'] = function DomCanvasRenderingContext2DExtension$124get$35getImageData($this) {
    if ($this == null) dart.nullFailed(I[270], 1350, 16, "#this");
    return dart.fn((x, y, sw, sh) => {
      if (x == null) dart.nullFailed(I[270], 1350, 33, "x");
      if (y == null) dart.nullFailed(I[270], 1350, 40, "y");
      if (sw == null) dart.nullFailed(I[270], 1350, 47, "sw");
      if (sh == null) dart.nullFailed(I[270], 1350, 55, "sh");
      return _engine['DomCanvasRenderingContext2DExtension|getImageData']($this, x, y, sw, sh);
    }, T$13.intAndintAndint__ToDomImageData());
  };
  _engine['DomCanvasRenderingContext2DExtension|getImageData'] = function DomCanvasRenderingContext2DExtension$124getImageData($this, x, y, sw, sh) {
    if ($this == null) dart.nullFailed(I[270], 1350, 16, "#this");
    if (x == null) dart.nullFailed(I[270], 1350, 33, "x");
    if (y == null) dart.nullFailed(I[270], 1350, 40, "y");
    if (sw == null) dart.nullFailed(I[270], 1350, 47, "sw");
    if (sh == null) dart.nullFailed(I[270], 1350, 55, "sh");
    return T$13.DomImageData()[_as]($this.getImageData(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y), js_interop['NumToJSExtension|get#toJS'](sw), js_interop['NumToJSExtension|get#toJS'](sh)));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#lineTo'] = function DomCanvasRenderingContext2DExtension$124get$35lineTo($this) {
    if ($this == null) dart.nullFailed(I[270], 1355, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[270], 1355, 19, "x");
      if (y == null) dart.nullFailed(I[270], 1355, 26, "y");
      return _engine['DomCanvasRenderingContext2DExtension|lineTo']($this, x, y);
    }, T$4.numAndnumTovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|lineTo'] = function DomCanvasRenderingContext2DExtension$124lineTo($this, x, y) {
    if ($this == null) dart.nullFailed(I[270], 1355, 8, "#this");
    if (x == null) dart.nullFailed(I[270], 1355, 19, "x");
    if (y == null) dart.nullFailed(I[270], 1355, 26, "y");
    return $this.lineTo(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y));
  };
  _engine['DomCanvasRenderingContext2DExtension|measureText'] = function DomCanvasRenderingContext2DExtension$124measureText($this, text) {
    if ($this == null) dart.nullFailed(I[270], 1359, 18, "#this");
    if (text == null) dart.nullFailed(I[270], 1359, 37, "text");
    return T$13.DomTextMetrics()[_as]($this.measureText(js_interop['StringToJSString|get#toJS'](text)));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#measureText'] = function DomCanvasRenderingContext2DExtension$124get$35measureText($this) {
    if ($this == null) dart.nullFailed(I[270], 1359, 18, "#this");
    return dart.fn(text => {
      if (text == null) dart.nullFailed(I[270], 1359, 37, "text");
      return _engine['DomCanvasRenderingContext2DExtension|measureText']($this, text);
    }, T$10.StringToDomTextMetrics());
  };
  _engine['DomCanvasRenderingContext2DExtension|moveTo'] = function DomCanvasRenderingContext2DExtension$124moveTo($this, x, y) {
    if ($this == null) dart.nullFailed(I[270], 1363, 8, "#this");
    if (x == null) dart.nullFailed(I[270], 1363, 19, "x");
    if (y == null) dart.nullFailed(I[270], 1363, 26, "y");
    return $this.moveTo(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#moveTo'] = function DomCanvasRenderingContext2DExtension$124get$35moveTo($this) {
    if ($this == null) dart.nullFailed(I[270], 1363, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[270], 1363, 19, "x");
      if (y == null) dart.nullFailed(I[270], 1363, 26, "y");
      return _engine['DomCanvasRenderingContext2DExtension|moveTo']($this, x, y);
    }, T$4.numAndnumTovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|get#rect'] = function DomCanvasRenderingContext2DExtension$124get$35rect($this) {
    if ($this == null) dart.nullFailed(I[270], 1371, 8, "#this");
    return dart.fn((x, y, width, height) => {
      if (x == null) dart.nullFailed(I[270], 1371, 17, "x");
      if (y == null) dart.nullFailed(I[270], 1371, 24, "y");
      if (width == null) dart.nullFailed(I[270], 1371, 31, "width");
      if (height == null) dart.nullFailed(I[270], 1371, 42, "height");
      return _engine['DomCanvasRenderingContext2DExtension|rect']($this, x, y, width, height);
    }, T$4.numAndnumAndnum__Tovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|rect'] = function DomCanvasRenderingContext2DExtension$124rect($this, x, y, width, height) {
    if ($this == null) dart.nullFailed(I[270], 1371, 8, "#this");
    if (x == null) dart.nullFailed(I[270], 1371, 17, "x");
    if (y == null) dart.nullFailed(I[270], 1371, 24, "y");
    if (width == null) dart.nullFailed(I[270], 1371, 31, "width");
    if (height == null) dart.nullFailed(I[270], 1371, 42, "height");
    return $this.rect(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y), js_interop['NumToJSExtension|get#toJS'](width), js_interop['NumToJSExtension|get#toJS'](height));
  };
  _engine['DomCanvasRenderingContext2DExtension|setTransform'] = function DomCanvasRenderingContext2DExtension$124setTransform($this, a, b, c, d, e, f) {
    if ($this == null) dart.nullFailed(I[270], 1380, 8, "#this");
    if (a == null) dart.nullFailed(I[270], 1380, 25, "a");
    if (b == null) dart.nullFailed(I[270], 1380, 32, "b");
    if (c == null) dart.nullFailed(I[270], 1380, 39, "c");
    if (d == null) dart.nullFailed(I[270], 1380, 46, "d");
    if (e == null) dart.nullFailed(I[270], 1380, 53, "e");
    if (f == null) dart.nullFailed(I[270], 1380, 60, "f");
    return js_util.callMethod(T$.void(), $this, "setTransform", [js_interop['NumToJSExtension|get#toJS'](a), js_interop['NumToJSExtension|get#toJS'](b), js_interop['NumToJSExtension|get#toJS'](c), js_interop['NumToJSExtension|get#toJS'](d), js_interop['NumToJSExtension|get#toJS'](e), js_interop['NumToJSExtension|get#toJS'](f)]);
  };
  _engine['DomCanvasRenderingContext2DExtension|get#setTransform'] = function DomCanvasRenderingContext2DExtension$124get$35setTransform($this) {
    if ($this == null) dart.nullFailed(I[270], 1380, 8, "#this");
    return dart.fn((a, b, c, d, e, f) => {
      if (a == null) dart.nullFailed(I[270], 1380, 25, "a");
      if (b == null) dart.nullFailed(I[270], 1380, 32, "b");
      if (c == null) dart.nullFailed(I[270], 1380, 39, "c");
      if (d == null) dart.nullFailed(I[270], 1380, 46, "d");
      if (e == null) dart.nullFailed(I[270], 1380, 53, "e");
      if (f == null) dart.nullFailed(I[270], 1380, 60, "f");
      return _engine['DomCanvasRenderingContext2DExtension|setTransform']($this, a, b, c, d, e, f);
    }, T$4.numAndnumAndnum__Tovoid$1());
  };
  _engine['DomCanvasRenderingContext2DExtension|transform'] = function DomCanvasRenderingContext2DExtension$124transform($this, a, b, c, d, e, f) {
    if ($this == null) dart.nullFailed(I[270], 1386, 8, "#this");
    if (a == null) dart.nullFailed(I[270], 1386, 22, "a");
    if (b == null) dart.nullFailed(I[270], 1386, 29, "b");
    if (c == null) dart.nullFailed(I[270], 1386, 36, "c");
    if (d == null) dart.nullFailed(I[270], 1386, 43, "d");
    if (e == null) dart.nullFailed(I[270], 1386, 50, "e");
    if (f == null) dart.nullFailed(I[270], 1386, 57, "f");
    return js_util.callMethod(T$.void(), $this, "transform", [js_interop['NumToJSExtension|get#toJS'](a), js_interop['NumToJSExtension|get#toJS'](b), js_interop['NumToJSExtension|get#toJS'](c), js_interop['NumToJSExtension|get#toJS'](d), js_interop['NumToJSExtension|get#toJS'](e), js_interop['NumToJSExtension|get#toJS'](f)]);
  };
  _engine['DomCanvasRenderingContext2DExtension|get#transform'] = function DomCanvasRenderingContext2DExtension$124get$35transform($this) {
    if ($this == null) dart.nullFailed(I[270], 1386, 8, "#this");
    return dart.fn((a, b, c, d, e, f) => {
      if (a == null) dart.nullFailed(I[270], 1386, 22, "a");
      if (b == null) dart.nullFailed(I[270], 1386, 29, "b");
      if (c == null) dart.nullFailed(I[270], 1386, 36, "c");
      if (d == null) dart.nullFailed(I[270], 1386, 43, "d");
      if (e == null) dart.nullFailed(I[270], 1386, 50, "e");
      if (f == null) dart.nullFailed(I[270], 1386, 57, "f");
      return _engine['DomCanvasRenderingContext2DExtension|transform']($this, a, b, c, d, e, f);
    }, T$4.numAndnumAndnum__Tovoid$1());
  };
  _engine['DomCanvasRenderingContext2DExtension|clip'] = function DomCanvasRenderingContext2DExtension$124clip($this, pathOrWinding = null) {
    if ($this == null) dart.nullFailed(I[270], 1393, 8, "#this");
    if (pathOrWinding == null) {
      $this.clip();
    } else {
      $this.clip(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](pathOrWinding));
    }
  };
  _engine['DomCanvasRenderingContext2DExtension|get#clip'] = function DomCanvasRenderingContext2DExtension$124get$35clip($this) {
    if ($this == null) dart.nullFailed(I[270], 1393, 8, "#this");
    return dart.fn((pathOrWinding = null) => _engine['DomCanvasRenderingContext2DExtension|clip']($this, pathOrWinding), T$0.ObjectNTovoid$1());
  };
  _engine['DomCanvasRenderingContext2DExtension|scale'] = function DomCanvasRenderingContext2DExtension$124scale($this, x, y) {
    if ($this == null) dart.nullFailed(I[270], 1403, 8, "#this");
    if (x == null) dart.nullFailed(I[270], 1403, 18, "x");
    if (y == null) dart.nullFailed(I[270], 1403, 25, "y");
    return $this.scale(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#scale'] = function DomCanvasRenderingContext2DExtension$124get$35scale($this) {
    if ($this == null) dart.nullFailed(I[270], 1403, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[270], 1403, 18, "x");
      if (y == null) dart.nullFailed(I[270], 1403, 25, "y");
      return _engine['DomCanvasRenderingContext2DExtension|scale']($this, x, y);
    }, T$4.numAndnumTovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|clearRect'] = function DomCanvasRenderingContext2DExtension$124clearRect($this, x, y, width, height) {
    if ($this == null) dart.nullFailed(I[270], 1408, 8, "#this");
    if (x == null) dart.nullFailed(I[270], 1408, 22, "x");
    if (y == null) dart.nullFailed(I[270], 1408, 29, "y");
    if (width == null) dart.nullFailed(I[270], 1408, 36, "width");
    if (height == null) dart.nullFailed(I[270], 1408, 47, "height");
    return $this.clearRect(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y), js_interop['NumToJSExtension|get#toJS'](width), js_interop['NumToJSExtension|get#toJS'](height));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#clearRect'] = function DomCanvasRenderingContext2DExtension$124get$35clearRect($this) {
    if ($this == null) dart.nullFailed(I[270], 1408, 8, "#this");
    return dart.fn((x, y, width, height) => {
      if (x == null) dart.nullFailed(I[270], 1408, 22, "x");
      if (y == null) dart.nullFailed(I[270], 1408, 29, "y");
      if (width == null) dart.nullFailed(I[270], 1408, 36, "width");
      if (height == null) dart.nullFailed(I[270], 1408, 47, "height");
      return _engine['DomCanvasRenderingContext2DExtension|clearRect']($this, x, y, width, height);
    }, T$4.numAndnumAndnum__Tovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|translate'] = function DomCanvasRenderingContext2DExtension$124translate($this, x, y) {
    if ($this == null) dart.nullFailed(I[270], 1413, 8, "#this");
    if (x == null) dart.nullFailed(I[270], 1413, 22, "x");
    if (y == null) dart.nullFailed(I[270], 1413, 29, "y");
    return $this.translate(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#translate'] = function DomCanvasRenderingContext2DExtension$124get$35translate($this) {
    if ($this == null) dart.nullFailed(I[270], 1413, 8, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[270], 1413, 22, "x");
      if (y == null) dart.nullFailed(I[270], 1413, 29, "y");
      return _engine['DomCanvasRenderingContext2DExtension|translate']($this, x, y);
    }, T$4.numAndnumTovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|rotate'] = function DomCanvasRenderingContext2DExtension$124rotate($this, angle) {
    if ($this == null) dart.nullFailed(I[270], 1417, 8, "#this");
    if (angle == null) dart.nullFailed(I[270], 1417, 19, "angle");
    return $this.rotate(js_interop['NumToJSExtension|get#toJS'](angle));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#rotate'] = function DomCanvasRenderingContext2DExtension$124get$35rotate($this) {
    if ($this == null) dart.nullFailed(I[270], 1417, 8, "#this");
    return dart.fn(angle => {
      if (angle == null) dart.nullFailed(I[270], 1417, 19, "angle");
      return _engine['DomCanvasRenderingContext2DExtension|rotate']($this, angle);
    }, T$2.numTovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|bezierCurveTo'] = function DomCanvasRenderingContext2DExtension$124bezierCurveTo($this, cp1x, cp1y, cp2x, cp2y, x, y) {
    if ($this == null) dart.nullFailed(I[270], 1422, 8, "#this");
    if (cp1x == null) dart.nullFailed(I[270], 1422, 26, "cp1x");
    if (cp1y == null) dart.nullFailed(I[270], 1422, 36, "cp1y");
    if (cp2x == null) dart.nullFailed(I[270], 1422, 46, "cp2x");
    if (cp2y == null) dart.nullFailed(I[270], 1422, 56, "cp2y");
    if (x == null) dart.nullFailed(I[270], 1422, 66, "x");
    if (y == null) dart.nullFailed(I[270], 1422, 73, "y");
    return js_util.callMethod(T$.void(), $this, "bezierCurveTo", [js_interop['NumToJSExtension|get#toJS'](cp1x), js_interop['NumToJSExtension|get#toJS'](cp1y), js_interop['NumToJSExtension|get#toJS'](cp2x), js_interop['NumToJSExtension|get#toJS'](cp2y), js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y)]);
  };
  _engine['DomCanvasRenderingContext2DExtension|get#bezierCurveTo'] = function DomCanvasRenderingContext2DExtension$124get$35bezierCurveTo($this) {
    if ($this == null) dart.nullFailed(I[270], 1422, 8, "#this");
    return dart.fn((cp1x, cp1y, cp2x, cp2y, x, y) => {
      if (cp1x == null) dart.nullFailed(I[270], 1422, 26, "cp1x");
      if (cp1y == null) dart.nullFailed(I[270], 1422, 36, "cp1y");
      if (cp2x == null) dart.nullFailed(I[270], 1422, 46, "cp2x");
      if (cp2y == null) dart.nullFailed(I[270], 1422, 56, "cp2y");
      if (x == null) dart.nullFailed(I[270], 1422, 66, "x");
      if (y == null) dart.nullFailed(I[270], 1422, 73, "y");
      return _engine['DomCanvasRenderingContext2DExtension|bezierCurveTo']($this, cp1x, cp1y, cp2x, cp2y, x, y);
    }, T$4.numAndnumAndnum__Tovoid$1());
  };
  _engine['DomCanvasRenderingContext2DExtension|quadraticCurveTo'] = function DomCanvasRenderingContext2DExtension$124quadraticCurveTo($this, cpx, cpy, x, y) {
    if ($this == null) dart.nullFailed(I[270], 1429, 8, "#this");
    if (cpx == null) dart.nullFailed(I[270], 1429, 29, "cpx");
    if (cpy == null) dart.nullFailed(I[270], 1429, 38, "cpy");
    if (x == null) dart.nullFailed(I[270], 1429, 47, "x");
    if (y == null) dart.nullFailed(I[270], 1429, 54, "y");
    return $this.quadraticCurveTo(js_interop['NumToJSExtension|get#toJS'](cpx), js_interop['NumToJSExtension|get#toJS'](cpy), js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#quadraticCurveTo'] = function DomCanvasRenderingContext2DExtension$124get$35quadraticCurveTo($this) {
    if ($this == null) dart.nullFailed(I[270], 1429, 8, "#this");
    return dart.fn((cpx, cpy, x, y) => {
      if (cpx == null) dart.nullFailed(I[270], 1429, 29, "cpx");
      if (cpy == null) dart.nullFailed(I[270], 1429, 38, "cpy");
      if (x == null) dart.nullFailed(I[270], 1429, 47, "x");
      if (y == null) dart.nullFailed(I[270], 1429, 54, "y");
      return _engine['DomCanvasRenderingContext2DExtension|quadraticCurveTo']($this, cpx, cpy, x, y);
    }, T$4.numAndnumAndnum__Tovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|set#globalCompositeOperation'] = function DomCanvasRenderingContext2DExtension$124set$35globalCompositeOperation($this, value) {
    let t$361505;
    if ($this == null) dart.nullFailed(I[270], 1434, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 1434, 39, "value");
    t$361505 = js_interop['StringToJSString|get#toJS'](value);
    $this.globalCompositeOperation = t$361505;
    return t$361505;
  };
  _engine['DomCanvasRenderingContext2DExtension|set#lineCap'] = function DomCanvasRenderingContext2DExtension$124set$35lineCap($this, value) {
    let t$361506;
    if ($this == null) dart.nullFailed(I[270], 1439, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 1439, 22, "value");
    t$361506 = js_interop['StringToJSString|get#toJS'](value);
    $this.lineCap = t$361506;
    return t$361506;
  };
  _engine['DomCanvasRenderingContext2DExtension|set#lineJoin'] = function DomCanvasRenderingContext2DExtension$124set$35lineJoin($this, value) {
    let t$361507;
    if ($this == null) dart.nullFailed(I[270], 1443, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 1443, 23, "value");
    t$361507 = js_interop['StringToJSString|get#toJS'](value);
    $this.lineJoin = t$361507;
    return t$361507;
  };
  _engine['DomCanvasRenderingContext2DExtension|set#shadowBlur'] = function DomCanvasRenderingContext2DExtension$124set$35shadowBlur($this, value) {
    let t$361508;
    if ($this == null) dart.nullFailed(I[270], 1447, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 1447, 22, "value");
    t$361508 = js_interop['NumToJSExtension|get#toJS'](value);
    $this.shadowBlur = t$361508;
    return t$361508;
  };
  _engine['DomCanvasRenderingContext2DExtension|get#arc'] = function DomCanvasRenderingContext2DExtension$124get$35arc($this) {
    if ($this == null) dart.nullFailed(I[270], 1452, 8, "#this");
    return dart.fn((x, y, radius, startAngle, endAngle, antiClockwise = false) => {
      if (x == null) dart.nullFailed(I[270], 1452, 16, "x");
      if (y == null) dart.nullFailed(I[270], 1452, 23, "y");
      if (radius == null) dart.nullFailed(I[270], 1452, 30, "radius");
      if (startAngle == null) dart.nullFailed(I[270], 1452, 42, "startAngle");
      if (endAngle == null) dart.nullFailed(I[270], 1452, 58, "endAngle");
      if (antiClockwise == null) dart.nullFailed(I[270], 1453, 17, "antiClockwise");
      return _engine['DomCanvasRenderingContext2DExtension|arc']($this, x, y, radius, startAngle, endAngle, antiClockwise);
    }, T$4.numAndnumAndnum__Tovoid$5());
  };
  _engine['DomCanvasRenderingContext2DExtension|arc'] = function DomCanvasRenderingContext2DExtension$124arc($this, x, y, radius, startAngle, endAngle, antiClockwise = false) {
    if ($this == null) dart.nullFailed(I[270], 1452, 8, "#this");
    if (x == null) dart.nullFailed(I[270], 1452, 16, "x");
    if (y == null) dart.nullFailed(I[270], 1452, 23, "y");
    if (radius == null) dart.nullFailed(I[270], 1452, 30, "radius");
    if (startAngle == null) dart.nullFailed(I[270], 1452, 42, "startAngle");
    if (endAngle == null) dart.nullFailed(I[270], 1452, 58, "endAngle");
    if (antiClockwise == null) dart.nullFailed(I[270], 1453, 17, "antiClockwise");
    return js_util.callMethod(T$.void(), $this, "arc", [js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y), js_interop['NumToJSExtension|get#toJS'](radius), js_interop['NumToJSExtension|get#toJS'](startAngle), js_interop['NumToJSExtension|get#toJS'](endAngle), js_interop['BoolToJSBoolean|get#toJS'](antiClockwise)]);
  };
  _engine['DomCanvasRenderingContext2DExtension|set#filter'] = function DomCanvasRenderingContext2DExtension$124set$35filter($this, value) {
    let t$361511, t$361511$;
    if ($this == null) dart.nullFailed(I[270], 1459, 7, "#this");
    t$361511$ = (t$361511 = value, t$361511 == null ? null : js_interop['StringToJSString|get#toJS'](t$361511));
    $this.filter = t$361511$;
    return t$361511$;
  };
  _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetX'] = function DomCanvasRenderingContext2DExtension$124set$35shadowOffsetX($this, x) {
    let t$361512, t$361512$;
    if ($this == null) dart.nullFailed(I[270], 1463, 7, "#this");
    t$361512$ = (t$361512 = x, t$361512 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$361512));
    $this.shadowOffsetX = t$361512$;
    return t$361512$;
  };
  _engine['DomCanvasRenderingContext2DExtension|set#shadowOffsetY'] = function DomCanvasRenderingContext2DExtension$124set$35shadowOffsetY($this, y) {
    let t$361513, t$361513$;
    if ($this == null) dart.nullFailed(I[270], 1467, 7, "#this");
    t$361513$ = (t$361513 = y, t$361513 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$361513));
    $this.shadowOffsetY = t$361513$;
    return t$361513$;
  };
  _engine['DomCanvasRenderingContext2DExtension|set#shadowColor'] = function DomCanvasRenderingContext2DExtension$124set$35shadowColor($this, value) {
    let t$361514, t$361514$;
    if ($this == null) dart.nullFailed(I[270], 1471, 7, "#this");
    t$361514$ = (t$361514 = value, t$361514 == null ? null : js_interop['StringToJSString|get#toJS'](t$361514));
    $this.shadowColor = t$361514$;
    return t$361514$;
  };
  _engine['DomCanvasRenderingContext2DExtension|get#ellipse'] = function DomCanvasRenderingContext2DExtension$124get$35ellipse($this) {
    if ($this == null) dart.nullFailed(I[270], 1483, 8, "#this");
    return dart.fn((x, y, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise) => {
      if (x == null) dart.nullFailed(I[270], 1483, 20, "x");
      if (y == null) dart.nullFailed(I[270], 1483, 27, "y");
      if (radiusX == null) dart.nullFailed(I[270], 1483, 34, "radiusX");
      if (radiusY == null) dart.nullFailed(I[270], 1483, 47, "radiusY");
      if (rotation == null) dart.nullFailed(I[270], 1483, 60, "rotation");
      if (startAngle == null) dart.nullFailed(I[270], 1484, 15, "startAngle");
      if (endAngle == null) dart.nullFailed(I[270], 1484, 31, "endAngle");
      return _engine['DomCanvasRenderingContext2DExtension|ellipse']($this, x, y, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise);
    }, T$4.numAndnumAndnum__Tovoid$4());
  };
  _engine['DomCanvasRenderingContext2DExtension|ellipse'] = function DomCanvasRenderingContext2DExtension$124ellipse($this, x, y, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise) {
    let t$361516;
    if ($this == null) dart.nullFailed(I[270], 1483, 8, "#this");
    if (x == null) dart.nullFailed(I[270], 1483, 20, "x");
    if (y == null) dart.nullFailed(I[270], 1483, 27, "y");
    if (radiusX == null) dart.nullFailed(I[270], 1483, 34, "radiusX");
    if (radiusY == null) dart.nullFailed(I[270], 1483, 47, "radiusY");
    if (rotation == null) dart.nullFailed(I[270], 1483, 60, "rotation");
    if (startAngle == null) dart.nullFailed(I[270], 1484, 15, "startAngle");
    if (endAngle == null) dart.nullFailed(I[270], 1484, 31, "endAngle");
    return js_util.callMethod(T$.void(), $this, "ellipse", [js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y), js_interop['NumToJSExtension|get#toJS'](radiusX), js_interop['NumToJSExtension|get#toJS'](radiusY), js_interop['NumToJSExtension|get#toJS'](rotation), js_interop['NumToJSExtension|get#toJS'](startAngle), js_interop['NumToJSExtension|get#toJS'](endAngle), (t$361516 = antiClockwise, t$361516 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$361516))]);
  };
  _engine['DomCanvasRenderingContext2DExtension|strokeText'] = function DomCanvasRenderingContext2DExtension$124strokeText($this, text, x, y) {
    if ($this == null) dart.nullFailed(I[270], 1490, 8, "#this");
    if (text == null) dart.nullFailed(I[270], 1490, 26, "text");
    if (x == null) dart.nullFailed(I[270], 1490, 36, "x");
    if (y == null) dart.nullFailed(I[270], 1490, 43, "y");
    return $this.strokeText(js_interop['StringToJSString|get#toJS'](text), js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y));
  };
  _engine['DomCanvasRenderingContext2DExtension|get#strokeText'] = function DomCanvasRenderingContext2DExtension$124get$35strokeText($this) {
    if ($this == null) dart.nullFailed(I[270], 1490, 8, "#this");
    return dart.fn((text, x, y) => {
      if (text == null) dart.nullFailed(I[270], 1490, 26, "text");
      if (x == null) dart.nullFailed(I[270], 1490, 36, "x");
      if (y == null) dart.nullFailed(I[270], 1490, 43, "y");
      return _engine['DomCanvasRenderingContext2DExtension|strokeText']($this, text, x, y);
    }, T$13.StringAndnumAndnumTovoid());
  };
  _engine['DomCanvasRenderingContext2DExtension|set#globalAlpha'] = function DomCanvasRenderingContext2DExtension$124set$35globalAlpha($this, value) {
    let t$361519, t$361519$;
    if ($this == null) dart.nullFailed(I[270], 1495, 7, "#this");
    t$361519$ = (t$361519 = value, t$361519 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$361519));
    $this.globalAlpha = t$361519$;
    return t$361519$;
  };
  _engine['DomCanvasRenderingContextWebGlExtension|get#isContextLost'] = function DomCanvasRenderingContextWebGlExtension$124get$35isContextLost($this) {
    if ($this == null) dart.nullFailed(I[270], 1506, 8, "#this");
    return dart.fn(() => _engine['DomCanvasRenderingContextWebGlExtension|isContextLost']($this), T$.VoidTobool());
  };
  _engine['DomCanvasRenderingContextWebGlExtension|isContextLost'] = function DomCanvasRenderingContextWebGlExtension$124isContextLost($this) {
    if ($this == null) dart.nullFailed(I[270], 1506, 8, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.isContextLost()));
  };
  _engine.createDomImageData = function createDomImageData(data, sw, sh) {
    if (data == null) dart.nullFailed(I[270], 1525, 40, "data");
    if (sw == null) dart.nullFailed(I[270], 1525, 50, "sw");
    if (sh == null) dart.nullFailed(I[270], 1525, 58, "sh");
    return T$13.DomImageData()[_as](new dart.global.ImageData(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](data), js_interop['NumToJSExtension|get#toJS'](sw), js_interop['NumToJSExtension|get#toJS'](sh)));
  };
  _engine.createBlankDomImageData = function createBlankDomImageData(sw, sh) {
    if (sw == null) dart.nullFailed(I[270], 1527, 42, "sw");
    if (sh == null) dart.nullFailed(I[270], 1527, 50, "sh");
    return T$13.DomImageData()[_as](new dart.global.ImageData(js_interop['NumToJSExtension|get#toJS'](sw), js_interop['NumToJSExtension|get#toJS'](sh)));
  };
  _engine['DomImageDataExtension|get#data'] = function DomImageDataExtension$124get$35data($this) {
    if ($this == null) dart.nullFailed(I[270], 1533, 24, "#this");
    return js_interop['JSUint8ClampedArrayToUint8ClampedList|get#toDart'](js_util.getProperty(T$3.NativeUint8ClampedList(), $this, "data"));
  };
  _engine['DomCanvasGradientExtension|addColorStop'] = function DomCanvasGradientExtension$124addColorStop($this, offset, color) {
    if ($this == null) dart.nullFailed(I[270], 1557, 8, "#this");
    if (offset == null) dart.nullFailed(I[270], 1557, 25, "offset");
    if (color == null) dart.nullFailed(I[270], 1557, 40, "color");
    return $this.addColorStop(js_interop['NumToJSExtension|get#toJS'](offset), js_interop['StringToJSString|get#toJS'](color));
  };
  _engine['DomCanvasGradientExtension|get#addColorStop'] = function DomCanvasGradientExtension$124get$35addColorStop($this) {
    if ($this == null) dart.nullFailed(I[270], 1557, 8, "#this");
    return dart.fn((offset, color) => {
      if (offset == null) dart.nullFailed(I[270], 1557, 25, "offset");
      if (color == null) dart.nullFailed(I[270], 1557, 40, "color");
      return _engine['DomCanvasGradientExtension|addColorStop']($this, offset, color);
    }, T$4.numAndStringTovoid());
  };
  _engine.rawHttpGet = function rawHttpGet(url) {
    if (url == null) dart.nullFailed(I[270], 1565, 39, "url");
    return js_util.promiseToFuture(T$10.DomResponse(), T$3.JSObject()[_as](dart.jsInteropNullCheck(dart.global.window).fetch(js_interop['StringToJSString|get#toJS'](url))));
  };
  _engine.httpFetch = function httpFetch(url) {
    if (url == null) dart.nullFailed(I[270], 1586, 44, "url");
    return async.async(T$11.HttpFetchResponse(), function* httpFetch() {
      if (_engine.mockHttpFetchResponseFactory != null) {
        let response = (yield dart.nullCheck(_engine.mockHttpFetchResponseFactory)(url));
        if (response != null) {
          return response;
        }
      }
      try {
        let domResponse = (yield _engine.rawHttpGet(url));
        return new _engine.HttpFetchResponseImpl.__(url, domResponse);
      } catch (t$36$35e) {
        let requestError = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](requestError)) {
          dart.throw(new _engine.HttpFetchError.new(url, {requestError: requestError}));
        } else
          throw t$36$35e;
      }
    });
  };
  _engine._rawHttpPost = function _rawHttpPost(url, data) {
    if (url == null) dart.nullFailed(I[270], 1602, 41, "url");
    if (data == null) dart.nullFailed(I[270], 1602, 53, "data");
    return js_util.promiseToFuture(T$10.DomResponse(), T$3.JSObject()[_as](dart.jsInteropNullCheck(dart.global.window).fetch(js_interop['StringToJSString|get#toJS'](url), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](new (G.IdentityMapOfString$ObjectN()).from(["method", "POST", "headers", new (G.IdentityMapOfString$ObjectN()).from(["Content-Type", "text/plain"]), "body", data])))));
  };
  _engine.testOnlyHttpPost = function testOnlyHttpPost(url, data) {
    if (url == null) dart.nullFailed(I[270], 1619, 51, "url");
    if (data == null) dart.nullFailed(I[270], 1619, 63, "data");
    return async.async(T$11.HttpFetchResponse(), function* testOnlyHttpPost() {
      try {
        let domResponse = (yield _engine._rawHttpPost(url, data));
        return new _engine.HttpFetchResponseImpl.__(url, domResponse);
      } catch (t$36$35e) {
        let requestError = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](requestError)) {
          dart.throw(new _engine.HttpFetchError.new(url, {requestError: requestError}));
        } else
          throw t$36$35e;
      }
    });
  };
  _engine.httpFetchByteBuffer = function httpFetchByteBuffer(url) {
    if (url == null) dart.nullFailed(I[270], 1630, 47, "url");
    return async.async(T$0.ByteBuffer(), function* httpFetchByteBuffer() {
      let response = (yield _engine.httpFetch(url));
      return _engine['HttpFetchResponseExtension|asByteBuffer'](response);
    });
  };
  _engine.httpFetchJson = function httpFetchJson(url) {
    if (url == null) dart.nullFailed(I[270], 1637, 38, "url");
    return async.async(T$.ObjectN(), function* httpFetchJson() {
      let response = (yield _engine.httpFetch(url));
      return _engine['HttpFetchResponseExtension|json'](response);
    });
  };
  _engine.httpFetchText = function httpFetchText(url) {
    if (url == null) dart.nullFailed(I[270], 1644, 37, "url");
    return async.async(T$.String(), function* httpFetchText() {
      let response = (yield _engine.httpFetch(url));
      return _engine['HttpFetchResponseExtension|text'](response);
    });
  };
  _engine['HttpFetchResponseExtension|get#read'] = function HttpFetchResponseExtension$124get$35read($this) {
    if ($this == null) dart.nullFailed(I[270], 1683, 16, "#this");
    return dart.gFn((T, reader) => {
      if (reader == null) dart.nullFailed(I[270], 1683, 43, "reader");
      return _engine['HttpFetchResponseExtension|read'](T, $this, reader);
    }, T$10.FnToFutureOfvoid$2(), dart.constList([T$.dynamic()], T$.dynamic()));
  };
  _engine['HttpFetchResponseExtension|read'] = function HttpFetchResponseExtension$124read(T, $this, reader) {
    if ($this == null) dart.nullFailed(I[270], 1683, 16, "#this");
    if (reader == null) dart.nullFailed(I[270], 1683, 43, "reader");
    return $this.payload.read(T, reader);
  };
  _engine['HttpFetchResponseExtension|get#asByteBuffer'] = function HttpFetchResponseExtension$124get$35asByteBuffer($this) {
    if ($this == null) dart.nullFailed(I[270], 1688, 22, "#this");
    return dart.fn(() => _engine['HttpFetchResponseExtension|asByteBuffer']($this), T$10.VoidToFutureOfByteBuffer());
  };
  _engine['HttpFetchResponseExtension|asByteBuffer'] = function HttpFetchResponseExtension$124asByteBuffer($this) {
    if ($this == null) dart.nullFailed(I[270], 1688, 22, "#this");
    return $this.payload.asByteBuffer();
  };
  _engine['HttpFetchResponseExtension|asUint8List'] = function HttpFetchResponseExtension$124asUint8List($this) {
    if ($this == null) dart.nullFailed(I[270], 1693, 21, "#this");
    return async.async(T$.Uint8List(), function* HttpFetchResponseExtension$124asUint8List() {
      return (yield $this.payload.asByteBuffer())[$asUint8List]();
    });
  };
  _engine['HttpFetchResponseExtension|get#asUint8List'] = function HttpFetchResponseExtension$124get$35asUint8List($this) {
    if ($this == null) dart.nullFailed(I[270], 1693, 21, "#this");
    return dart.fn(() => _engine['HttpFetchResponseExtension|asUint8List']($this), T$2.VoidToFutureOfUint8List());
  };
  _engine['HttpFetchResponseExtension|json'] = function HttpFetchResponseExtension$124json($this) {
    if ($this == null) dart.nullFailed(I[270], 1698, 19, "#this");
    return $this.payload.json();
  };
  _engine['HttpFetchResponseExtension|get#json'] = function HttpFetchResponseExtension$124get$35json($this) {
    if ($this == null) dart.nullFailed(I[270], 1698, 19, "#this");
    return dart.fn(() => _engine['HttpFetchResponseExtension|json']($this), T$.VoidToFuture());
  };
  _engine['HttpFetchResponseExtension|text'] = function HttpFetchResponseExtension$124text($this) {
    if ($this == null) dart.nullFailed(I[270], 1703, 18, "#this");
    return $this.payload.text();
  };
  _engine['HttpFetchResponseExtension|get#text'] = function HttpFetchResponseExtension$124get$35text($this) {
    if ($this == null) dart.nullFailed(I[270], 1703, 18, "#this");
    return dart.fn(() => _engine['HttpFetchResponseExtension|text']($this), T$2.VoidToFutureOfString());
  };
  _engine['DomResponseExtension|get#status'] = function DomResponseExtension$124get$35status($this) {
    if ($this == null) dart.nullFailed(I[270], 1921, 11, "#this");
    return js_interop['JSNumberToNumber|get#toDartInt'](js_util.getProperty(T$.double(), $this, "status"));
  };
  _engine['DomResponseExtension|arrayBuffer'] = function DomResponseExtension$124arrayBuffer($this) {
    if ($this == null) dart.nullFailed(I[270], 1929, 19, "#this");
    return js_util.promiseToFuture(T$.ObjectN(), T$3.JSObject()[_as]($this.arrayBuffer()));
  };
  _engine['DomResponseExtension|get#arrayBuffer'] = function DomResponseExtension$124get$35arrayBuffer($this) {
    if ($this == null) dart.nullFailed(I[270], 1929, 19, "#this");
    return dart.fn(() => _engine['DomResponseExtension|arrayBuffer']($this), T$13.VoidToFutureOfObjectN());
  };
  _engine['DomResponseExtension|json'] = function DomResponseExtension$124json($this) {
    if ($this == null) dart.nullFailed(I[270], 1934, 19, "#this");
    return js_util.promiseToFuture(T$.ObjectN(), T$3.JSObject()[_as]($this.json()));
  };
  _engine['DomResponseExtension|get#json'] = function DomResponseExtension$124get$35json($this) {
    if ($this == null) dart.nullFailed(I[270], 1934, 19, "#this");
    return dart.fn(() => _engine['DomResponseExtension|json']($this), T$13.VoidToFutureOfObjectN());
  };
  _engine['DomResponseExtension|text'] = function DomResponseExtension$124text($this) {
    if ($this == null) dart.nullFailed(I[270], 1938, 18, "#this");
    return js_util.promiseToFuture(T$.String(), T$3.JSObject()[_as]($this.text()));
  };
  _engine['DomResponseExtension|get#text'] = function DomResponseExtension$124get$35text($this) {
    if ($this == null) dart.nullFailed(I[270], 1938, 18, "#this");
    return dart.fn(() => _engine['DomResponseExtension|text']($this), T$2.VoidToFutureOfString());
  };
  _engine['DomHeadersExtension|get'] = function DomHeadersExtension$124get($this, headerName) {
    let t$361544, t$361544$;
    if ($this == null) dart.nullFailed(I[270], 1948, 11, "#this");
    t$361544$ = T$.StringN()[_as]($this.get((t$361544 = headerName, t$361544 == null ? null : js_interop['StringToJSString|get#toJS'](t$361544))));
    return t$361544$ == null ? null : js_interop['JSStringToString|get#toDart'](t$361544$);
  };
  _engine['DomHeadersExtension|get#get'] = function DomHeadersExtension$124get$35get($this) {
    if ($this == null) dart.nullFailed(I[270], 1948, 11, "#this");
    return dart.fn(headerName => _engine['DomHeadersExtension|get']($this, headerName), T$6.StringNToStringN());
  };
  _engine['_DomStreamReaderExtension|read'] = function _DomStreamReaderExtension$124read($this) {
    if ($this == null) dart.nullFailed(I[270], 1966, 27, "#this");
    return js_util.promiseToFuture(T$13._DomStreamChunk(), T$3.JSObject()[_as]($this.read()));
  };
  _engine['_DomStreamReaderExtension|get#read'] = function _DomStreamReaderExtension$124get$35read($this) {
    if ($this == null) dart.nullFailed(I[270], 1966, 27, "#this");
    return dart.fn(() => _engine['_DomStreamReaderExtension|read']($this), T$13.VoidToFutureOf_DomStreamChunk());
  };
  _engine['_DomStreamChunkExtension|get#done'] = function _DomStreamChunkExtension$124get$35done($this) {
    if ($this == null) dart.nullFailed(I[270], 1979, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "done"));
  };
  _engine.createDomText = function createDomText(data) {
    if (data == null) dart.nullFailed(I[270], 1990, 30, "data");
    return _engine['DomDocumentExtension|createTextNode'](dart.jsInteropNullCheck(dart.global.document), data);
  };
  _engine['DomTextMetricsExtension|get#width'] = function DomTextMetricsExtension$124get$35width($this) {
    let t$361549;
    if ($this == null) dart.nullFailed(I[270], 1999, 15, "#this");
    t$361549 = js_util.getProperty(T$9.doubleN(), $this, "width");
    return t$361549 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361549);
  };
  _engine['DomExceptionExtension|get#name'] = function DomExceptionExtension$124get$35name($this) {
    if ($this == null) dart.nullFailed(I[270], 2011, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "name"));
  };
  _engine['DomRectReadOnlyExtension|get#x'] = function DomRectReadOnlyExtension$124get$35x($this) {
    if ($this == null) dart.nullFailed(I[270], 2021, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "x"));
  };
  _engine['DomRectReadOnlyExtension|get#y'] = function DomRectReadOnlyExtension$124get$35y($this) {
    if ($this == null) dart.nullFailed(I[270], 2025, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "y"));
  };
  _engine['DomRectReadOnlyExtension|get#width'] = function DomRectReadOnlyExtension$124get$35width($this) {
    if ($this == null) dart.nullFailed(I[270], 2029, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "width"));
  };
  _engine['DomRectReadOnlyExtension|get#height'] = function DomRectReadOnlyExtension$124get$35height($this) {
    if ($this == null) dart.nullFailed(I[270], 2033, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "height"));
  };
  _engine['DomRectReadOnlyExtension|get#top'] = function DomRectReadOnlyExtension$124get$35top($this) {
    if ($this == null) dart.nullFailed(I[270], 2037, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "top"));
  };
  _engine['DomRectReadOnlyExtension|get#right'] = function DomRectReadOnlyExtension$124get$35right($this) {
    if ($this == null) dart.nullFailed(I[270], 2041, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "right"));
  };
  _engine['DomRectReadOnlyExtension|get#bottom'] = function DomRectReadOnlyExtension$124get$35bottom($this) {
    if ($this == null) dart.nullFailed(I[270], 2045, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "bottom"));
  };
  _engine['DomRectReadOnlyExtension|get#left'] = function DomRectReadOnlyExtension$124get$35left($this) {
    if ($this == null) dart.nullFailed(I[270], 2049, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "left"));
  };
  _engine.createDomRectFromPoints = function createDomRectFromPoints(a, b) {
    if (a == null) dart.nullFailed(I[270], 2052, 42, "a");
    if (b == null) dart.nullFailed(I[270], 2052, 54, "b");
    let left = math.min(T$.num(), a.x, b.x);
    let width = math.max(T$.num(), a.x, b.x) - left;
    let top = math.min(T$.num(), a.y, b.y);
    let height = math.max(T$.num(), a.y, b.y) - top;
    return T$12.DomRect()[_as](new dart.global.DOMRect(js_interop['NumToJSExtension|get#toJS'](left), js_interop['NumToJSExtension|get#toJS'](top), js_interop['NumToJSExtension|get#toJS'](width), js_interop['NumToJSExtension|get#toJS'](height)));
  };
  _engine.createDomFontFace = function createDomFontFace(family, source, descriptors = null) {
    if (family == null) dart.nullFailed(I[270], 2075, 38, "family");
    if (source == null) dart.nullFailed(I[270], 2075, 53, "source");
    if (descriptors == null) {
      return T$12.DomFontFace()[_as](new dart.global.FontFace(js_interop['StringToJSString|get#toJS'](family), _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](source)));
    } else {
      return T$12.DomFontFace()[_as](new dart.global.FontFace(js_interop['StringToJSString|get#toJS'](family), _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](source), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](descriptors)));
    }
  };
  _engine['DomFontFaceExtension|load'] = function DomFontFaceExtension$124load($this) {
    if ($this == null) dart.nullFailed(I[270], 2088, 23, "#this");
    return js_util.promiseToFuture(T$12.DomFontFace(), T$3.JSObject()[_as]($this.load()));
  };
  _engine['DomFontFaceExtension|get#load'] = function DomFontFaceExtension$124get$35load($this) {
    if ($this == null) dart.nullFailed(I[270], 2088, 23, "#this");
    return dart.fn(() => _engine['DomFontFaceExtension|load']($this), T$13.VoidToFutureOfDomFontFace());
  };
  _engine['DomFontFaceExtension|get#family'] = function DomFontFaceExtension$124get$35family($this) {
    let t$361561;
    if ($this == null) dart.nullFailed(I[270], 2092, 15, "#this");
    t$361561 = js_util.getProperty(T$.StringN(), $this, "family");
    return t$361561 == null ? null : js_interop['JSStringToString|get#toDart'](t$361561);
  };
  _engine['DomFontFaceExtension|get#weight'] = function DomFontFaceExtension$124get$35weight($this) {
    let t$361562;
    if ($this == null) dart.nullFailed(I[270], 2096, 15, "#this");
    t$361562 = js_util.getProperty(T$.StringN(), $this, "weight");
    return t$361562 == null ? null : js_interop['JSStringToString|get#toDart'](t$361562);
  };
  _engine['DomFontFaceExtension|get#status'] = function DomFontFaceExtension$124get$35status($this) {
    let t$361563;
    if ($this == null) dart.nullFailed(I[270], 2100, 15, "#this");
    t$361563 = js_util.getProperty(T$.StringN(), $this, "status");
    return t$361563 == null ? null : js_interop['JSStringToString|get#toDart'](t$361563);
  };
  _engine['DomFontFaceSetExtension|forEach'] = function DomFontFaceSetExtension$124forEach($this, callback) {
    if ($this == null) dart.nullFailed(I[270], 2113, 8, "#this");
    if (callback == null) dart.nullFailed(I[270], 2113, 46, "callback");
    return $this.forEach(js_util._functionToJS3(callback));
  };
  _engine['DomFontFaceSetExtension|get#forEach'] = function DomFontFaceSetExtension$124get$35forEach($this) {
    if ($this == null) dart.nullFailed(I[270], 2113, 8, "#this");
    return dart.fn(callback => {
      if (callback == null) dart.nullFailed(I[270], 2113, 46, "callback");
      return _engine['DomFontFaceSetExtension|forEach']($this, callback);
    }, T$13.FnTovoid$49());
  };
  _engine['DomVisualViewportExtension|get#height'] = function DomVisualViewportExtension$124get$35height($this) {
    let t$361566;
    if ($this == null) dart.nullFailed(I[270], 2127, 15, "#this");
    t$361566 = js_util.getProperty(T$9.doubleN(), $this, "height");
    return t$361566 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361566);
  };
  _engine['DomVisualViewportExtension|get#width'] = function DomVisualViewportExtension$124get$35width($this) {
    let t$361567;
    if ($this == null) dart.nullFailed(I[270], 2131, 15, "#this");
    t$361567 = js_util.getProperty(T$9.doubleN(), $this, "width");
    return t$361567 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361567);
  };
  _engine.createDomHTMLTextAreaElement = function createDomHTMLTextAreaElement() {
    return T$12.DomHTMLTextAreaElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "textarea"));
  };
  _engine['DomHTMLTextAreaElementExtension|set#value'] = function DomHTMLTextAreaElementExtension$124set$35value($this, value) {
    let t$361568, t$361568$;
    if ($this == null) dart.nullFailed(I[270], 2144, 7, "#this");
    t$361568$ = (t$361568 = value, t$361568 == null ? null : js_interop['StringToJSString|get#toJS'](t$361568));
    $this.value = t$361568$;
    return t$361568$;
  };
  _engine['DomHTMLTextAreaElementExtension|set#placeholder'] = function DomHTMLTextAreaElementExtension$124set$35placeholder($this, value) {
    let t$361569, t$361569$;
    if ($this == null) dart.nullFailed(I[270], 2150, 7, "#this");
    t$361569$ = (t$361569 = value, t$361569 == null ? null : js_interop['StringToJSString|get#toJS'](t$361569));
    $this.placeholder = t$361569$;
    return t$361569$;
  };
  _engine['DomHTMLTextAreaElementExtension|set#name'] = function DomHTMLTextAreaElementExtension$124set$35name($this, value) {
    let t$361570;
    if ($this == null) dart.nullFailed(I[270], 2154, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 2154, 19, "value");
    t$361570 = js_interop['StringToJSString|get#toJS'](value);
    $this.name = t$361570;
    return t$361570;
  };
  _engine['DomHTMLTextAreaElementExtension|get#selectionDirection'] = function DomHTMLTextAreaElementExtension$124get$35selectionDirection($this) {
    let t$361571;
    if ($this == null) dart.nullFailed(I[270], 2158, 15, "#this");
    t$361571 = js_util.getProperty(T$.StringN(), $this, "selectionDirection");
    return t$361571 == null ? null : js_interop['JSStringToString|get#toDart'](t$361571);
  };
  _engine['DomHTMLTextAreaElementExtension|get#selectionStart'] = function DomHTMLTextAreaElementExtension$124get$35selectionStart($this) {
    let t$361572;
    if ($this == null) dart.nullFailed(I[270], 2162, 15, "#this");
    t$361572 = js_util.getProperty(T$9.doubleN(), $this, "selectionStart");
    return t$361572 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361572);
  };
  _engine['DomHTMLTextAreaElementExtension|get#selectionEnd'] = function DomHTMLTextAreaElementExtension$124get$35selectionEnd($this) {
    let t$361573;
    if ($this == null) dart.nullFailed(I[270], 2166, 15, "#this");
    t$361573 = js_util.getProperty(T$9.doubleN(), $this, "selectionEnd");
    return t$361573 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361573);
  };
  _engine['DomHTMLTextAreaElementExtension|set#selectionStart'] = function DomHTMLTextAreaElementExtension$124set$35selectionStart($this, value) {
    let t$361574, t$361574$;
    if ($this == null) dart.nullFailed(I[270], 2170, 7, "#this");
    t$361574$ = (t$361574 = value, t$361574 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361574));
    $this.selectionStart = t$361574$;
    return t$361574$;
  };
  _engine['DomHTMLTextAreaElementExtension|set#selectionEnd'] = function DomHTMLTextAreaElementExtension$124set$35selectionEnd($this, value) {
    let t$361575, t$361575$;
    if ($this == null) dart.nullFailed(I[270], 2174, 7, "#this");
    t$361575$ = (t$361575 = value, t$361575 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361575));
    $this.selectionEnd = t$361575$;
    return t$361575$;
  };
  _engine['DomHTMLTextAreaElementExtension|get#value'] = function DomHTMLTextAreaElementExtension$124get$35value($this) {
    let t$361576;
    if ($this == null) dart.nullFailed(I[270], 2178, 15, "#this");
    t$361576 = js_util.getProperty(T$.StringN(), $this, "value");
    return t$361576 == null ? null : js_interop['JSStringToString|get#toDart'](t$361576);
  };
  _engine['DomHTMLTextAreaElementExtension|setSelectionRange'] = function DomHTMLTextAreaElementExtension$124setSelectionRange($this, start, end, direction = null) {
    if ($this == null) dart.nullFailed(I[270], 2185, 8, "#this");
    if (start == null) dart.nullFailed(I[270], 2185, 30, "start");
    if (end == null) dart.nullFailed(I[270], 2185, 41, "end");
    if (direction == null) {
      $this.setSelectionRange(js_interop['NumToJSExtension|get#toJS'](start), js_interop['NumToJSExtension|get#toJS'](end));
    } else {
      $this.setSelectionRange(js_interop['NumToJSExtension|get#toJS'](start), js_interop['NumToJSExtension|get#toJS'](end), js_interop['StringToJSString|get#toJS'](direction));
    }
  };
  _engine['DomHTMLTextAreaElementExtension|get#setSelectionRange'] = function DomHTMLTextAreaElementExtension$124get$35setSelectionRange($this) {
    if ($this == null) dart.nullFailed(I[270], 2185, 8, "#this");
    return dart.fn((start, end, direction = null) => {
      if (start == null) dart.nullFailed(I[270], 2185, 30, "start");
      if (end == null) dart.nullFailed(I[270], 2185, 41, "end");
      return _engine['DomHTMLTextAreaElementExtension|setSelectionRange']($this, start, end, direction);
    }, T$5.intAndintAndStringNTovoid());
  };
  _engine['DomHTMLTextAreaElementExtension|get#name'] = function DomHTMLTextAreaElementExtension$124get$35name($this) {
    if ($this == null) dart.nullFailed(I[270], 2195, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "name"));
  };
  _engine['DomHTMLTextAreaElementExtension|get#placeholder'] = function DomHTMLTextAreaElementExtension$124get$35placeholder($this) {
    if ($this == null) dart.nullFailed(I[270], 2199, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "placeholder"));
  };
  _engine['DomClipboardExtension|readText'] = function DomClipboardExtension$124readText($this) {
    if ($this == null) dart.nullFailed(I[270], 2209, 18, "#this");
    return js_util.promiseToFuture(T$.String(), T$3.JSObject()[_as]($this.readText()));
  };
  _engine['DomClipboardExtension|get#readText'] = function DomClipboardExtension$124get$35readText($this) {
    if ($this == null) dart.nullFailed(I[270], 2209, 18, "#this");
    return dart.fn(() => _engine['DomClipboardExtension|readText']($this), T$2.VoidToFutureOfString());
  };
  _engine['DomClipboardExtension|writeText'] = function DomClipboardExtension$124writeText($this, data) {
    if ($this == null) dart.nullFailed(I[270], 2213, 19, "#this");
    if (data == null) dart.nullFailed(I[270], 2213, 36, "data");
    return js_util.promiseToFuture(T$.dynamic(), T$3.JSObject()[_as]($this.writeText(js_interop['StringToJSString|get#toJS'](data))));
  };
  _engine['DomClipboardExtension|get#writeText'] = function DomClipboardExtension$124get$35writeText($this) {
    if ($this == null) dart.nullFailed(I[270], 2213, 19, "#this");
    return dart.fn(data => {
      if (data == null) dart.nullFailed(I[270], 2213, 36, "data");
      return _engine['DomClipboardExtension|writeText']($this, data);
    }, T$4.StringToFuture());
  };
  _engine['DomKeyboardEventExtension|get#altKey'] = function DomKeyboardEventExtension$124get$35altKey($this) {
    if ($this == null) dart.nullFailed(I[270], 2231, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "altKey"));
  };
  _engine['DomKeyboardEventExtension|get#code'] = function DomKeyboardEventExtension$124get$35code($this) {
    let t$361586;
    if ($this == null) dart.nullFailed(I[270], 2235, 15, "#this");
    t$361586 = js_util.getProperty(T$.StringN(), $this, "code");
    return t$361586 == null ? null : js_interop['JSStringToString|get#toDart'](t$361586);
  };
  _engine['DomKeyboardEventExtension|get#ctrlKey'] = function DomKeyboardEventExtension$124get$35ctrlKey($this) {
    if ($this == null) dart.nullFailed(I[270], 2239, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "ctrlKey"));
  };
  _engine['DomKeyboardEventExtension|get#key'] = function DomKeyboardEventExtension$124get$35key($this) {
    let t$361588;
    if ($this == null) dart.nullFailed(I[270], 2243, 15, "#this");
    t$361588 = js_util.getProperty(T$.StringN(), $this, "key");
    return t$361588 == null ? null : js_interop['JSStringToString|get#toDart'](t$361588);
  };
  _engine['DomKeyboardEventExtension|get#keyCode'] = function DomKeyboardEventExtension$124get$35keyCode($this) {
    if ($this == null) dart.nullFailed(I[270], 2247, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "keyCode"));
  };
  _engine['DomKeyboardEventExtension|get#location'] = function DomKeyboardEventExtension$124get$35location($this) {
    if ($this == null) dart.nullFailed(I[270], 2251, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "location"));
  };
  _engine['DomKeyboardEventExtension|get#metaKey'] = function DomKeyboardEventExtension$124get$35metaKey($this) {
    if ($this == null) dart.nullFailed(I[270], 2255, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "metaKey"));
  };
  _engine['DomKeyboardEventExtension|get#repeat'] = function DomKeyboardEventExtension$124get$35repeat($this) {
    let t$361592;
    if ($this == null) dart.nullFailed(I[270], 2259, 13, "#this");
    t$361592 = js_util.getProperty(T$.boolN(), $this, "repeat");
    return t$361592 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361592);
  };
  _engine['DomKeyboardEventExtension|get#shiftKey'] = function DomKeyboardEventExtension$124get$35shiftKey($this) {
    let t$361593;
    if ($this == null) dart.nullFailed(I[270], 2265, 13, "#this");
    t$361593 = js_util.getProperty(T$.boolN(), $this, "shiftKey");
    return t$361593 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361593);
  };
  _engine['DomKeyboardEventExtension|get#isComposing'] = function DomKeyboardEventExtension$124get$35isComposing($this) {
    if ($this == null) dart.nullFailed(I[270], 2269, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "isComposing"));
  };
  _engine['DomKeyboardEventExtension|getModifierState'] = function DomKeyboardEventExtension$124getModifierState($this, keyArg) {
    if ($this == null) dart.nullFailed(I[270], 2273, 8, "#this");
    if (keyArg == null) dart.nullFailed(I[270], 2273, 32, "keyArg");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.getModifierState(js_interop['StringToJSString|get#toJS'](keyArg))));
  };
  _engine['DomKeyboardEventExtension|get#getModifierState'] = function DomKeyboardEventExtension$124get$35getModifierState($this) {
    if ($this == null) dart.nullFailed(I[270], 2273, 8, "#this");
    return dart.fn(keyArg => {
      if (keyArg == null) dart.nullFailed(I[270], 2273, 32, "keyArg");
      return _engine['DomKeyboardEventExtension|getModifierState']($this, keyArg);
    }, T$.StringTobool());
  };
  _engine.createDomKeyboardEvent = function createDomKeyboardEvent(type, init = null) {
    if (type == null) dart.nullFailed(I[270], 2276, 48, "type");
    if (init == null) {
      return T$11.DomKeyboardEvent()[_as](new dart.global.KeyboardEvent(js_interop['StringToJSString|get#toJS'](type)));
    } else {
      return T$11.DomKeyboardEvent()[_as](new dart.global.KeyboardEvent(js_interop['StringToJSString|get#toJS'](type), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](init)));
    }
  };
  _engine['DomHistoryExtension|get#state'] = function DomHistoryExtension$124get$35state($this) {
    let t$361597;
    if ($this == null) dart.nullFailed(I[270], 2292, 15, "#this");
    t$361597 = js_util.getProperty(T$.ObjectN(), $this, "state");
    return t$361597 == null ? null : _engine['JSAnyToObjectExtension|get#toObjectDeep'](t$361597);
  };
  _engine['DomHistoryExtension|go'] = function DomHistoryExtension$124go($this, delta = null) {
    if ($this == null) dart.nullFailed(I[270], 2298, 8, "#this");
    if (delta == null) {
      $this.go();
    } else {
      $this.go(js_interop['NumToJSExtension|get#toJS'](delta));
    }
  };
  _engine['DomHistoryExtension|get#go'] = function DomHistoryExtension$124get$35go($this) {
    if ($this == null) dart.nullFailed(I[270], 2298, 8, "#this");
    return dart.fn((delta = null) => _engine['DomHistoryExtension|go']($this, delta), T$4.intNTovoid$1());
  };
  _engine['DomHistoryExtension|pushState'] = function DomHistoryExtension$124pushState($this, data, title, url) {
    let t$361600, t$361600$;
    if ($this == null) dart.nullFailed(I[270], 2308, 8, "#this");
    if (title == null) dart.nullFailed(I[270], 2308, 39, "title");
    return $this.pushState((t$361600 = data, t$361600 == null ? null : _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](t$361600)), js_interop['StringToJSString|get#toJS'](title), (t$361600$ = url, t$361600$ == null ? null : js_interop['StringToJSString|get#toJS'](t$361600$)));
  };
  _engine['DomHistoryExtension|get#pushState'] = function DomHistoryExtension$124get$35pushState($this) {
    if ($this == null) dart.nullFailed(I[270], 2308, 8, "#this");
    return dart.fn((data, title, url) => {
      if (title == null) dart.nullFailed(I[270], 2308, 39, "title");
      return _engine['DomHistoryExtension|pushState']($this, data, title, url);
    }, T$13.ObjectNAndStringAndStringNTovoid());
  };
  _engine['DomHistoryExtension|replaceState'] = function DomHistoryExtension$124replaceState($this, data, title, url) {
    let t$361602, t$361602$;
    if ($this == null) dart.nullFailed(I[270], 2313, 8, "#this");
    if (title == null) dart.nullFailed(I[270], 2313, 42, "title");
    return $this.replaceState((t$361602 = data, t$361602 == null ? null : _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](t$361602)), js_interop['StringToJSString|get#toJS'](title), (t$361602$ = url, t$361602$ == null ? null : js_interop['StringToJSString|get#toJS'](t$361602$)));
  };
  _engine['DomHistoryExtension|get#replaceState'] = function DomHistoryExtension$124get$35replaceState($this) {
    if ($this == null) dart.nullFailed(I[270], 2313, 8, "#this");
    return dart.fn((data, title, url) => {
      if (title == null) dart.nullFailed(I[270], 2313, 42, "title");
      return _engine['DomHistoryExtension|replaceState']($this, data, title, url);
    }, T$13.ObjectNAndStringAndStringNTovoid());
  };
  _engine['DomLocationExtension|get#pathname'] = function DomLocationExtension$124get$35pathname($this) {
    let t$361604;
    if ($this == null) dart.nullFailed(I[270], 2324, 15, "#this");
    t$361604 = js_util.getProperty(T$.StringN(), $this, "pathname");
    return t$361604 == null ? null : js_interop['JSStringToString|get#toDart'](t$361604);
  };
  _engine['DomLocationExtension|get#search'] = function DomLocationExtension$124get$35search($this) {
    let t$361605;
    if ($this == null) dart.nullFailed(I[270], 2328, 15, "#this");
    t$361605 = js_util.getProperty(T$.StringN(), $this, "search");
    return t$361605 == null ? null : js_interop['JSStringToString|get#toDart'](t$361605);
  };
  _engine['DomLocationExtension|get#locationHash'] = function DomLocationExtension$124get$35locationHash($this) {
    if ($this == null) dart.nullFailed(I[270], 2333, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "hash"));
  };
  _engine['DomLocationExtension|get#origin'] = function DomLocationExtension$124get$35origin($this) {
    if ($this == null) dart.nullFailed(I[270], 2337, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "origin"));
  };
  _engine['DomLocationExtension|get#href'] = function DomLocationExtension$124get$35href($this) {
    if ($this == null) dart.nullFailed(I[270], 2341, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "href"));
  };
  _engine.createDomPopStateEvent = function createDomPopStateEvent(type, eventInitDict) {
    if (type == null) dart.nullFailed(I[270], 2352, 12, "type");
    if (eventInitDict == null) {
      return T$9.DomPopStateEvent()[_as](new dart.global.PopStateEvent(js_interop['StringToJSString|get#toJS'](type)));
    } else {
      return T$9.DomPopStateEvent()[_as](new dart.global.PopStateEvent(js_interop['StringToJSString|get#toJS'](type), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](eventInitDict)));
    }
  };
  _engine['DomPopStateEventExtension|get#state'] = function DomPopStateEventExtension$124get$35state($this) {
    let t$361609;
    if ($this == null) dart.nullFailed(I[270], 2363, 15, "#this");
    t$361609 = js_util.getProperty(T$.ObjectN(), $this, "state");
    return t$361609 == null ? null : _engine['JSAnyToObjectExtension|get#toObjectDeep'](t$361609);
  };
  _engine.createDomURL = function createDomURL(url, base = null) {
    if (url == null) dart.nullFailed(I[270], 2373, 28, "url");
    return base == null ? T$10.DomURL()[_as](new dart.global.URL(js_interop['StringToJSString|get#toJS'](url))) : T$10.DomURL()[_as](new dart.global.URL(js_interop['StringToJSString|get#toJS'](url), js_interop['StringToJSString|get#toJS'](base)));
  };
  _engine['DomURLExtension|createObjectURL'] = function DomURLExtension$124createObjectURL($this, object) {
    if ($this == null) dart.nullFailed(I[270], 2379, 10, "#this");
    if (object == null) dart.nullFailed(I[270], 2379, 33, "object");
    return js_interop['JSStringToString|get#toDart'](T$.String()[_as]($this.createObjectURL(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](object))));
  };
  _engine['DomURLExtension|get#createObjectURL'] = function DomURLExtension$124get$35createObjectURL($this) {
    if ($this == null) dart.nullFailed(I[270], 2379, 10, "#this");
    return dart.fn(object => {
      if (object == null) dart.nullFailed(I[270], 2379, 33, "object");
      return _engine['DomURLExtension|createObjectURL']($this, object);
    }, T$.ObjectToString());
  };
  _engine['DomURLExtension|revokeObjectURL'] = function DomURLExtension$124revokeObjectURL($this, url) {
    if ($this == null) dart.nullFailed(I[270], 2384, 8, "#this");
    if (url == null) dart.nullFailed(I[270], 2384, 31, "url");
    return $this.revokeObjectURL(js_interop['StringToJSString|get#toJS'](url));
  };
  _engine['DomURLExtension|get#revokeObjectURL'] = function DomURLExtension$124get$35revokeObjectURL($this) {
    if ($this == null) dart.nullFailed(I[270], 2384, 8, "#this");
    return dart.fn(url => {
      if (url == null) dart.nullFailed(I[270], 2384, 31, "url");
      return _engine['DomURLExtension|revokeObjectURL']($this, url);
    }, T$.StringTovoid());
  };
  _engine.createDomBlob = function createDomBlob(parts, options = null) {
    if (parts == null) dart.nullFailed(I[270], 2402, 37, "parts");
    if (options == null) {
      return T$10.DomBlob()[_as](new dart.global.Blob(T$3.JSArrayOfObjectN()[_as](_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](parts))));
    } else {
      return T$10.DomBlob()[_as](new dart.global.Blob(T$3.JSArrayOfObjectN()[_as](_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](parts)), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](options)));
    }
  };
  _engine.createDomMutationObserver = function createDomMutationObserver(callback) {
    if (callback == null) dart.nullFailed(I[270], 2420, 67, "callback");
    return T$13.DomMutationObserver()[_as](new dart.global.MutationObserver(js_util._functionToJS2(callback)));
  };
  _engine['DomMutationObserverExtension|observe'] = function DomMutationObserverExtension$124observe($this, target, opts) {
    if ($this == null) dart.nullFailed(I[270], 2428, 8, "#this");
    if (target == null) dart.nullFailed(I[270], 2428, 24, "target");
    let childList = opts && 'childList' in opts ? opts.childList : null;
    let attributes = opts && 'attributes' in opts ? opts.attributes : null;
    let attributeFilter = opts && 'attributeFilter' in opts ? opts.attributeFilter : null;
    let options = (() => {
      let t$361614 = new (G.IdentityMapOfString$dynamic()).new();
      if (childList != null) t$361614[$_set]("childList", childList);
      if (attributes != null) t$361614[$_set]("attributes", attributes);
      if (attributeFilter != null) t$361614[$_set]("attributeFilter", attributeFilter);
      return t$361614;
    })();
    return $this.observe(target, _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](options));
  };
  _engine['DomMutationObserverExtension|get#observe'] = function DomMutationObserverExtension$124get$35observe($this) {
    if ($this == null) dart.nullFailed(I[270], 2428, 8, "#this");
    return dart.fn((target, opts) => {
      if (target == null) dart.nullFailed(I[270], 2428, 24, "target");
      let childList = opts && 'childList' in opts ? opts.childList : null;
      let attributes = opts && 'attributes' in opts ? opts.attributes : null;
      let attributeFilter = opts && 'attributeFilter' in opts ? opts.attributeFilter : null;
      return _engine['DomMutationObserverExtension|observe']($this, target, {childList: childList, attributes: attributes, attributeFilter: attributeFilter});
    }, T$13.DomNode__Tovoid());
  };
  _engine['DomMutationRecordExtension|get#addedNodes'] = function DomMutationRecordExtension$124get$35addedNodes($this) {
    if ($this == null) dart.nullFailed(I[270], 2446, 26, "#this");
    let list = js_util.getProperty(T$13._DomListN(), $this, "addedNodes");
    if (list == null) {
      return null;
    }
    return _engine.createDomListWrapper(T$9.DomNode(), list);
  };
  _engine['DomMutationRecordExtension|get#removedNodes'] = function DomMutationRecordExtension$124get$35removedNodes($this) {
    if ($this == null) dart.nullFailed(I[270], 2456, 26, "#this");
    let list = js_util.getProperty(T$13._DomListN(), $this, "removedNodes");
    if (list == null) {
      return null;
    }
    return _engine.createDomListWrapper(T$9.DomNode(), list);
  };
  _engine['DomMutationRecordExtension|get#attributeName'] = function DomMutationRecordExtension$124get$35attributeName($this) {
    let t$361619;
    if ($this == null) dart.nullFailed(I[270], 2466, 15, "#this");
    t$361619 = js_util.getProperty(T$.StringN(), $this, "attributeName");
    return t$361619 == null ? null : js_interop['JSStringToString|get#toDart'](t$361619);
  };
  _engine['DomMutationRecordExtension|get#type'] = function DomMutationRecordExtension$124get$35type($this) {
    let t$361620;
    if ($this == null) dart.nullFailed(I[270], 2470, 15, "#this");
    t$361620 = js_util.getProperty(T$.StringN(), $this, "type");
    return t$361620 == null ? null : js_interop['JSStringToString|get#toDart'](t$361620);
  };
  _engine['DomMediaQueryListExtension|get#matches'] = function DomMediaQueryListExtension$124get$35matches($this) {
    if ($this == null) dart.nullFailed(I[270], 2480, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "matches"));
  };
  _engine['DomMediaQueryListEventExtension|get#matches'] = function DomMediaQueryListEventExtension$124get$35matches($this) {
    let t$361622;
    if ($this == null) dart.nullFailed(I[270], 2496, 13, "#this");
    t$361622 = js_util.getProperty(T$.boolN(), $this, "matches");
    return t$361622 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361622);
  };
  _engine.createDomPath2D = function createDomPath2D(path = null) {
    if (path == null) {
      return T$13.DomPath2D()[_as](new dart.global.Path2D());
    } else {
      return T$13.DomPath2D()[_as](new dart.global.Path2D(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](path)));
    }
  };
  _engine['DomMouseEventExtension|get#clientX'] = function DomMouseEventExtension$124get$35clientX($this) {
    if ($this == null) dart.nullFailed(I[270], 2539, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "clientX"));
  };
  _engine['DomMouseEventExtension|get#clientY'] = function DomMouseEventExtension$124get$35clientY($this) {
    if ($this == null) dart.nullFailed(I[270], 2543, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "clientY"));
  };
  _engine['DomMouseEventExtension|get#offsetX'] = function DomMouseEventExtension$124get$35offsetX($this) {
    if ($this == null) dart.nullFailed(I[270], 2547, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "offsetX"));
  };
  _engine['DomMouseEventExtension|get#offsetY'] = function DomMouseEventExtension$124get$35offsetY($this) {
    if ($this == null) dart.nullFailed(I[270], 2551, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "offsetY"));
  };
  _engine['DomMouseEventExtension|get#pageX'] = function DomMouseEventExtension$124get$35pageX($this) {
    if ($this == null) dart.nullFailed(I[270], 2555, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "pageX"));
  };
  _engine['DomMouseEventExtension|get#pageY'] = function DomMouseEventExtension$124get$35pageY($this) {
    if ($this == null) dart.nullFailed(I[270], 2559, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "pageY"));
  };
  _engine['DomMouseEventExtension|get#client'] = function DomMouseEventExtension$124get$35client($this) {
    if ($this == null) dart.nullFailed(I[270], 2561, 16, "#this");
    return new _engine.DomPoint.new(_engine['DomMouseEventExtension|get#clientX']($this), _engine['DomMouseEventExtension|get#clientY']($this));
  };
  _engine['DomMouseEventExtension|get#offset'] = function DomMouseEventExtension$124get$35offset($this) {
    if ($this == null) dart.nullFailed(I[270], 2562, 16, "#this");
    return new _engine.DomPoint.new(_engine['DomMouseEventExtension|get#offsetX']($this), _engine['DomMouseEventExtension|get#offsetY']($this));
  };
  _engine['DomMouseEventExtension|get#button'] = function DomMouseEventExtension$124get$35button($this) {
    if ($this == null) dart.nullFailed(I[270], 2566, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "button"));
  };
  _engine['DomMouseEventExtension|get#buttons'] = function DomMouseEventExtension$124get$35buttons($this) {
    let t$361632;
    if ($this == null) dart.nullFailed(I[270], 2570, 15, "#this");
    t$361632 = js_util.getProperty(T$9.doubleN(), $this, "buttons");
    return t$361632 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361632);
  };
  _engine['DomMouseEventExtension|get#ctrlKey'] = function DomMouseEventExtension$124get$35ctrlKey($this) {
    if ($this == null) dart.nullFailed(I[270], 2574, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "ctrlKey"));
  };
  _engine['DomMouseEventExtension|getModifierState'] = function DomMouseEventExtension$124getModifierState($this, keyArg) {
    if ($this == null) dart.nullFailed(I[270], 2578, 8, "#this");
    if (keyArg == null) dart.nullFailed(I[270], 2578, 32, "keyArg");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.getModifierState(js_interop['StringToJSString|get#toJS'](keyArg))));
  };
  _engine['DomMouseEventExtension|get#getModifierState'] = function DomMouseEventExtension$124get$35getModifierState($this) {
    if ($this == null) dart.nullFailed(I[270], 2578, 8, "#this");
    return dart.fn(keyArg => {
      if (keyArg == null) dart.nullFailed(I[270], 2578, 32, "keyArg");
      return _engine['DomMouseEventExtension|getModifierState']($this, keyArg);
    }, T$.StringTobool());
  };
  _engine.createDomMouseEvent = function createDomMouseEvent(type, init = null) {
    if (type == null) dart.nullFailed(I[270], 2581, 42, "type");
    if (init == null) {
      return T$12.DomMouseEvent()[_as](new dart.global.MouseEvent(js_interop['StringToJSString|get#toJS'](type)));
    } else {
      return T$12.DomMouseEvent()[_as](new dart.global.MouseEvent(js_interop['StringToJSString|get#toJS'](type), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](init)));
    }
  };
  _engine.createDomInputEvent = function createDomInputEvent(type, init = null) {
    if (type == null) dart.nullFailed(I[270], 2589, 42, "type");
    if (init == null) {
      return T$13.DomInputEvent()[_as](new dart.global.InputEvent(js_interop['StringToJSString|get#toJS'](type)));
    } else {
      return T$13.DomInputEvent()[_as](new dart.global.InputEvent(js_interop['StringToJSString|get#toJS'](type), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](init)));
    }
  };
  _engine['DomPointerEventExtension|get#pointerId'] = function DomPointerEventExtension$124get$35pointerId($this) {
    let t$361636;
    if ($this == null) dart.nullFailed(I[270], 2607, 15, "#this");
    t$361636 = js_util.getProperty(T$9.doubleN(), $this, "pointerId");
    return t$361636 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361636);
  };
  _engine['DomPointerEventExtension|get#pointerType'] = function DomPointerEventExtension$124get$35pointerType($this) {
    let t$361637;
    if ($this == null) dart.nullFailed(I[270], 2611, 15, "#this");
    t$361637 = js_util.getProperty(T$.StringN(), $this, "pointerType");
    return t$361637 == null ? null : js_interop['JSStringToString|get#toDart'](t$361637);
  };
  _engine['DomPointerEventExtension|get#pressure'] = function DomPointerEventExtension$124get$35pressure($this) {
    let t$361638;
    if ($this == null) dart.nullFailed(I[270], 2615, 15, "#this");
    t$361638 = js_util.getProperty(T$9.doubleN(), $this, "pressure");
    return t$361638 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361638);
  };
  _engine['DomPointerEventExtension|get#tiltX'] = function DomPointerEventExtension$124get$35tiltX($this) {
    let t$361639;
    if ($this == null) dart.nullFailed(I[270], 2619, 15, "#this");
    t$361639 = js_util.getProperty(T$9.doubleN(), $this, "tiltX");
    return t$361639 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361639);
  };
  _engine['DomPointerEventExtension|get#tiltY'] = function DomPointerEventExtension$124get$35tiltY($this) {
    let t$361640;
    if ($this == null) dart.nullFailed(I[270], 2623, 15, "#this");
    t$361640 = js_util.getProperty(T$9.doubleN(), $this, "tiltY");
    return t$361640 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361640);
  };
  _engine['DomPointerEventExtension|getCoalescedEvents'] = function DomPointerEventExtension$124getCoalescedEvents($this) {
    if ($this == null) dart.nullFailed(I[270], 2627, 25, "#this");
    return js_interop['JSArrayToList|get#toDart'](T$.ObjectN(), T$3.JSArrayOfObjectN()[_as]($this.getCoalescedEvents()))[$cast](T$11.DomPointerEvent());
  };
  _engine['DomPointerEventExtension|get#getCoalescedEvents'] = function DomPointerEventExtension$124get$35getCoalescedEvents($this) {
    if ($this == null) dart.nullFailed(I[270], 2627, 25, "#this");
    return dart.fn(() => _engine['DomPointerEventExtension|getCoalescedEvents']($this), T$13.VoidToListOfDomPointerEvent());
  };
  _engine.createDomPointerEvent = function createDomPointerEvent(type, init = null) {
    if (type == null) dart.nullFailed(I[270], 2631, 46, "type");
    if (init == null) {
      return T$11.DomPointerEvent()[_as](new dart.global.PointerEvent(js_interop['StringToJSString|get#toJS'](type)));
    } else {
      return T$11.DomPointerEvent()[_as](new dart.global.PointerEvent(js_interop['StringToJSString|get#toJS'](type), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](init)));
    }
  };
  _engine['DomWheelEventExtension|get#deltaX'] = function DomWheelEventExtension$124get$35deltaX($this) {
    if ($this == null) dart.nullFailed(I[270], 2650, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "deltaX"));
  };
  _engine['DomWheelEventExtension|get#deltaY'] = function DomWheelEventExtension$124get$35deltaY($this) {
    if ($this == null) dart.nullFailed(I[270], 2654, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "deltaY"));
  };
  _engine['DomWheelEventExtension|get#wheelDeltaX'] = function DomWheelEventExtension$124get$35wheelDeltaX($this) {
    let t$361645;
    if ($this == null) dart.nullFailed(I[270], 2658, 15, "#this");
    t$361645 = js_util.getProperty(T$9.doubleN(), $this, "wheelDeltaX");
    return t$361645 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361645);
  };
  _engine['DomWheelEventExtension|get#wheelDeltaY'] = function DomWheelEventExtension$124get$35wheelDeltaY($this) {
    let t$361646;
    if ($this == null) dart.nullFailed(I[270], 2662, 15, "#this");
    t$361646 = js_util.getProperty(T$9.doubleN(), $this, "wheelDeltaY");
    return t$361646 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361646);
  };
  _engine['DomWheelEventExtension|get#deltaMode'] = function DomWheelEventExtension$124get$35deltaMode($this) {
    if ($this == null) dart.nullFailed(I[270], 2666, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "deltaMode"));
  };
  _engine.createDomWheelEvent = function createDomWheelEvent(type, init = null) {
    if (type == null) dart.nullFailed(I[270], 2669, 42, "type");
    if (init == null) {
      return T$11.DomWheelEvent()[_as](new dart.global.WheelEvent(js_interop['StringToJSString|get#toJS'](type)));
    } else {
      return T$11.DomWheelEvent()[_as](new dart.global.WheelEvent(js_interop['StringToJSString|get#toJS'](type), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](init)));
    }
  };
  _engine['DomTouchEventExtension|get#altKey'] = function DomTouchEventExtension$124get$35altKey($this) {
    if ($this == null) dart.nullFailed(I[270], 2687, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "altKey"));
  };
  _engine['DomTouchEventExtension|get#ctrlKey'] = function DomTouchEventExtension$124get$35ctrlKey($this) {
    if ($this == null) dart.nullFailed(I[270], 2691, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "ctrlKey"));
  };
  _engine['DomTouchEventExtension|get#metaKey'] = function DomTouchEventExtension$124get$35metaKey($this) {
    if ($this == null) dart.nullFailed(I[270], 2695, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "metaKey"));
  };
  _engine['DomTouchEventExtension|get#shiftKey'] = function DomTouchEventExtension$124get$35shiftKey($this) {
    if ($this == null) dart.nullFailed(I[270], 2699, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "shiftKey"));
  };
  _engine['DomTouchEventExtension|get#changedTouches'] = function DomTouchEventExtension$124get$35changedTouches($this) {
    if ($this == null) dart.nullFailed(I[270], 2703, 26, "#this");
    return _engine.createDomTouchListWrapper(T$13.DomTouch(), js_util.getProperty(T$10._DomTouchList(), $this, "changedTouches"));
  };
  _engine['DomTouchExtension|get#identifier'] = function DomTouchExtension$124get$35identifier($this) {
    let t$361653;
    if ($this == null) dart.nullFailed(I[270], 2717, 15, "#this");
    t$361653 = js_util.getProperty(T$9.doubleN(), $this, "identifier");
    return t$361653 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361653);
  };
  _engine['DomTouchExtension|get#clientX'] = function DomTouchExtension$124get$35clientX($this) {
    if ($this == null) dart.nullFailed(I[270], 2721, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "clientX"));
  };
  _engine['DomTouchExtension|get#clientY'] = function DomTouchExtension$124get$35clientY($this) {
    if ($this == null) dart.nullFailed(I[270], 2725, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "clientY"));
  };
  _engine['DomTouchExtension|get#client'] = function DomTouchExtension$124get$35client($this) {
    if ($this == null) dart.nullFailed(I[270], 2727, 16, "#this");
    return new _engine.DomPoint.new(_engine['DomTouchExtension|get#clientX']($this), _engine['DomTouchExtension|get#clientY']($this));
  };
  _engine.createDomTouch = function createDomTouch(init = null) {
    if (init == null) {
      return T$13.DomTouch()[_as](new dart.global.Touch());
    } else {
      return T$13.DomTouch()[_as](new dart.global.Touch(_engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](init)));
    }
  };
  _engine['DomCompositionEventExtension|get#data'] = function DomCompositionEventExtension$124get$35data($this) {
    let t$361657;
    if ($this == null) dart.nullFailed(I[270], 2748, 15, "#this");
    t$361657 = js_util.getProperty(T$.StringN(), $this, "data");
    return t$361657 == null ? null : js_interop['JSStringToString|get#toDart'](t$361657);
  };
  _engine.createDomCompositionEvent = function createDomCompositionEvent(type, options = null) {
    if (type == null) dart.nullFailed(I[270], 2751, 54, "type");
    if (options == null) {
      return T$12.DomCompositionEvent()[_as](new dart.global.CompositionEvent(js_interop['StringToJSString|get#toJS'](type)));
    } else {
      return T$12.DomCompositionEvent()[_as](new dart.global.CompositionEvent(js_interop['StringToJSString|get#toJS'](type), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](options)));
    }
  };
  _engine['DomHTMLInputElementExtension|set#type'] = function DomHTMLInputElementExtension$124set$35type($this, value) {
    let t$361658, t$361658$;
    if ($this == null) dart.nullFailed(I[270], 2767, 7, "#this");
    t$361658$ = (t$361658 = value, t$361658 == null ? null : js_interop['StringToJSString|get#toJS'](t$361658));
    $this.type = t$361658$;
    return t$361658$;
  };
  _engine['DomHTMLInputElementExtension|set#max'] = function DomHTMLInputElementExtension$124set$35max($this, value) {
    let t$361659, t$361659$;
    if ($this == null) dart.nullFailed(I[270], 2771, 7, "#this");
    t$361659$ = (t$361659 = value, t$361659 == null ? null : js_interop['StringToJSString|get#toJS'](t$361659));
    $this.max = t$361659$;
    return t$361659$;
  };
  _engine['DomHTMLInputElementExtension|set#min'] = function DomHTMLInputElementExtension$124set$35min($this, value) {
    let t$361660;
    if ($this == null) dart.nullFailed(I[270], 2775, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 2775, 18, "value");
    t$361660 = js_interop['StringToJSString|get#toJS'](value);
    $this.min = t$361660;
    return t$361660;
  };
  _engine['DomHTMLInputElementExtension|set#value'] = function DomHTMLInputElementExtension$124set$35value($this, v) {
    let t$361661, t$361661$;
    if ($this == null) dart.nullFailed(I[270], 2779, 7, "#this");
    t$361661$ = (t$361661 = v, t$361661 == null ? null : js_interop['StringToJSString|get#toJS'](t$361661));
    $this.value = t$361661$;
    return t$361661$;
  };
  _engine['DomHTMLInputElementExtension|get#value'] = function DomHTMLInputElementExtension$124get$35value($this) {
    let t$361662;
    if ($this == null) dart.nullFailed(I[270], 2783, 15, "#this");
    t$361662 = js_util.getProperty(T$.StringN(), $this, "value");
    return t$361662 == null ? null : js_interop['JSStringToString|get#toDart'](t$361662);
  };
  _engine['DomHTMLInputElementExtension|get#disabled'] = function DomHTMLInputElementExtension$124get$35disabled($this) {
    let t$361663;
    if ($this == null) dart.nullFailed(I[270], 2787, 13, "#this");
    t$361663 = js_util.getProperty(T$.boolN(), $this, "disabled");
    return t$361663 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361663);
  };
  _engine['DomHTMLInputElementExtension|set#disabled'] = function DomHTMLInputElementExtension$124set$35disabled($this, value) {
    let t$361664, t$361664$;
    if ($this == null) dart.nullFailed(I[270], 2791, 7, "#this");
    t$361664$ = (t$361664 = value, t$361664 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$361664));
    $this.disabled = t$361664$;
    return t$361664$;
  };
  _engine['DomHTMLInputElementExtension|set#placeholder'] = function DomHTMLInputElementExtension$124set$35placeholder($this, value) {
    let t$361665, t$361665$;
    if ($this == null) dart.nullFailed(I[270], 2795, 7, "#this");
    t$361665$ = (t$361665 = value, t$361665 == null ? null : js_interop['StringToJSString|get#toJS'](t$361665));
    $this.placeholder = t$361665$;
    return t$361665$;
  };
  _engine['DomHTMLInputElementExtension|set#name'] = function DomHTMLInputElementExtension$124set$35name($this, value) {
    let t$361666, t$361666$;
    if ($this == null) dart.nullFailed(I[270], 2799, 7, "#this");
    t$361666$ = (t$361666 = value, t$361666 == null ? null : js_interop['StringToJSString|get#toJS'](t$361666));
    $this.name = t$361666$;
    return t$361666$;
  };
  _engine['DomHTMLInputElementExtension|set#autocomplete'] = function DomHTMLInputElementExtension$124set$35autocomplete($this, value) {
    let t$361667;
    if ($this == null) dart.nullFailed(I[270], 2803, 7, "#this");
    if (value == null) dart.nullFailed(I[270], 2803, 27, "value");
    t$361667 = js_interop['StringToJSString|get#toJS'](value);
    $this.autocomplete = t$361667;
    return t$361667;
  };
  _engine['DomHTMLInputElementExtension|get#selectionDirection'] = function DomHTMLInputElementExtension$124get$35selectionDirection($this) {
    let t$361668;
    if ($this == null) dart.nullFailed(I[270], 2807, 15, "#this");
    t$361668 = js_util.getProperty(T$.StringN(), $this, "selectionDirection");
    return t$361668 == null ? null : js_interop['JSStringToString|get#toDart'](t$361668);
  };
  _engine['DomHTMLInputElementExtension|get#selectionStart'] = function DomHTMLInputElementExtension$124get$35selectionStart($this) {
    let t$361669;
    if ($this == null) dart.nullFailed(I[270], 2811, 15, "#this");
    t$361669 = js_util.getProperty(T$9.doubleN(), $this, "selectionStart");
    return t$361669 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361669);
  };
  _engine['DomHTMLInputElementExtension|get#selectionEnd'] = function DomHTMLInputElementExtension$124get$35selectionEnd($this) {
    let t$361670;
    if ($this == null) dart.nullFailed(I[270], 2815, 15, "#this");
    t$361670 = js_util.getProperty(T$9.doubleN(), $this, "selectionEnd");
    return t$361670 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361670);
  };
  _engine['DomHTMLInputElementExtension|set#selectionStart'] = function DomHTMLInputElementExtension$124set$35selectionStart($this, value) {
    let t$361671, t$361671$;
    if ($this == null) dart.nullFailed(I[270], 2819, 7, "#this");
    t$361671$ = (t$361671 = value, t$361671 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361671));
    $this.selectionStart = t$361671$;
    return t$361671$;
  };
  _engine['DomHTMLInputElementExtension|set#selectionEnd'] = function DomHTMLInputElementExtension$124set$35selectionEnd($this, value) {
    let t$361672, t$361672$;
    if ($this == null) dart.nullFailed(I[270], 2823, 7, "#this");
    t$361672$ = (t$361672 = value, t$361672 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361672));
    $this.selectionEnd = t$361672$;
    return t$361672$;
  };
  _engine['DomHTMLInputElementExtension|get#setSelectionRange'] = function DomHTMLInputElementExtension$124get$35setSelectionRange($this) {
    if ($this == null) dart.nullFailed(I[270], 2830, 8, "#this");
    return dart.fn((start, end, direction = null) => {
      if (start == null) dart.nullFailed(I[270], 2830, 30, "start");
      if (end == null) dart.nullFailed(I[270], 2830, 41, "end");
      return _engine['DomHTMLInputElementExtension|setSelectionRange']($this, start, end, direction);
    }, T$5.intAndintAndStringNTovoid());
  };
  _engine['DomHTMLInputElementExtension|setSelectionRange'] = function DomHTMLInputElementExtension$124setSelectionRange($this, start, end, direction = null) {
    if ($this == null) dart.nullFailed(I[270], 2830, 8, "#this");
    if (start == null) dart.nullFailed(I[270], 2830, 30, "start");
    if (end == null) dart.nullFailed(I[270], 2830, 41, "end");
    if (direction == null) {
      $this.setSelectionRange(js_interop['NumToJSExtension|get#toJS'](start), js_interop['NumToJSExtension|get#toJS'](end));
    } else {
      $this.setSelectionRange(js_interop['NumToJSExtension|get#toJS'](start), js_interop['NumToJSExtension|get#toJS'](end), js_interop['StringToJSString|get#toJS'](direction));
    }
  };
  _engine['DomHTMLInputElementExtension|get#autocomplete'] = function DomHTMLInputElementExtension$124get$35autocomplete($this) {
    if ($this == null) dart.nullFailed(I[270], 2840, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "autocomplete"));
  };
  _engine['DomHTMLInputElementExtension|get#name'] = function DomHTMLInputElementExtension$124get$35name($this) {
    let t$361676;
    if ($this == null) dart.nullFailed(I[270], 2844, 15, "#this");
    t$361676 = js_util.getProperty(T$.StringN(), $this, "name");
    return t$361676 == null ? null : js_interop['JSStringToString|get#toDart'](t$361676);
  };
  _engine['DomHTMLInputElementExtension|get#type'] = function DomHTMLInputElementExtension$124get$35type($this) {
    let t$361677;
    if ($this == null) dart.nullFailed(I[270], 2848, 15, "#this");
    t$361677 = js_util.getProperty(T$.StringN(), $this, "type");
    return t$361677 == null ? null : js_interop['JSStringToString|get#toDart'](t$361677);
  };
  _engine['DomHTMLInputElementExtension|get#placeholder'] = function DomHTMLInputElementExtension$124get$35placeholder($this) {
    if ($this == null) dart.nullFailed(I[270], 2852, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "placeholder"));
  };
  _engine.createDomHTMLInputElement = function createDomHTMLInputElement() {
    return T$12.DomHTMLInputElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "input"));
  };
  _engine['DomTokenListExtension|add'] = function DomTokenListExtension$124add($this, value) {
    if ($this == null) dart.nullFailed(I[270], 2865, 8, "#this");
    if (value == null) dart.nullFailed(I[270], 2865, 19, "value");
    return $this.add(js_interop['StringToJSString|get#toJS'](value));
  };
  _engine['DomTokenListExtension|get#add'] = function DomTokenListExtension$124get$35add($this) {
    if ($this == null) dart.nullFailed(I[270], 2865, 8, "#this");
    return dart.fn(value => {
      if (value == null) dart.nullFailed(I[270], 2865, 19, "value");
      return _engine['DomTokenListExtension|add']($this, value);
    }, T$.StringTovoid());
  };
  _engine['DomTokenListExtension|remove'] = function DomTokenListExtension$124remove($this, value) {
    if ($this == null) dart.nullFailed(I[270], 2869, 8, "#this");
    if (value == null) dart.nullFailed(I[270], 2869, 22, "value");
    return $this.remove(js_interop['StringToJSString|get#toJS'](value));
  };
  _engine['DomTokenListExtension|get#remove'] = function DomTokenListExtension$124get$35remove($this) {
    if ($this == null) dart.nullFailed(I[270], 2869, 8, "#this");
    return dart.fn(value => {
      if (value == null) dart.nullFailed(I[270], 2869, 22, "value");
      return _engine['DomTokenListExtension|remove']($this, value);
    }, T$.StringTovoid());
  };
  _engine['DomTokenListExtension|contains'] = function DomTokenListExtension$124contains($this, token) {
    if ($this == null) dart.nullFailed(I[270], 2873, 8, "#this");
    if (token == null) dart.nullFailed(I[270], 2873, 24, "token");
    return js_interop['JSBooleanToBool|get#toDart'](T$.bool()[_as]($this.contains(js_interop['StringToJSString|get#toJS'](token))));
  };
  _engine['DomTokenListExtension|get#contains'] = function DomTokenListExtension$124get$35contains($this) {
    if ($this == null) dart.nullFailed(I[270], 2873, 8, "#this");
    return dart.fn(token => {
      if (token == null) dart.nullFailed(I[270], 2873, 24, "token");
      return _engine['DomTokenListExtension|contains']($this, token);
    }, T$.StringTobool());
  };
  _engine['DomHTMLFormElementExtension|set#noValidate'] = function DomHTMLFormElementExtension$124set$35noValidate($this, value) {
    let t$361685, t$361685$;
    if ($this == null) dart.nullFailed(I[270], 2883, 7, "#this");
    t$361685$ = (t$361685 = value, t$361685 == null ? null : js_interop['BoolToJSBoolean|get#toJS'](t$361685));
    $this.noValidate = t$361685$;
    return t$361685$;
  };
  _engine['DomHTMLFormElementExtension|set#method'] = function DomHTMLFormElementExtension$124set$35method($this, value) {
    let t$361686, t$361686$;
    if ($this == null) dart.nullFailed(I[270], 2887, 7, "#this");
    t$361686$ = (t$361686 = value, t$361686 == null ? null : js_interop['StringToJSString|get#toJS'](t$361686));
    $this.method = t$361686$;
    return t$361686$;
  };
  _engine['DomHTMLFormElementExtension|set#action'] = function DomHTMLFormElementExtension$124set$35action($this, value) {
    let t$361687, t$361687$;
    if ($this == null) dart.nullFailed(I[270], 2891, 7, "#this");
    t$361687$ = (t$361687 = value, t$361687 == null ? null : js_interop['StringToJSString|get#toJS'](t$361687));
    $this.action = t$361687$;
    return t$361687$;
  };
  _engine.createDomHTMLFormElement = function createDomHTMLFormElement() {
    return T$12.DomHTMLFormElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "form"));
  };
  _engine.createDomHTMLLabelElement = function createDomHTMLLabelElement() {
    return T$13.DomHTMLLabelElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "label"));
  };
  _engine['DomOffscreenCanvasExtension|get#height'] = function DomOffscreenCanvasExtension$124get$35height($this) {
    let t$361688;
    if ($this == null) dart.nullFailed(I[270], 2913, 15, "#this");
    t$361688 = js_util.getProperty(T$9.doubleN(), $this, "height");
    return t$361688 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361688);
  };
  _engine['DomOffscreenCanvasExtension|get#width'] = function DomOffscreenCanvasExtension$124get$35width($this) {
    let t$361689;
    if ($this == null) dart.nullFailed(I[270], 2917, 15, "#this");
    t$361689 = js_util.getProperty(T$9.doubleN(), $this, "width");
    return t$361689 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361689);
  };
  _engine['DomOffscreenCanvasExtension|set#height'] = function DomOffscreenCanvasExtension$124set$35height($this, value) {
    let t$361690, t$361690$;
    if ($this == null) dart.nullFailed(I[270], 2921, 7, "#this");
    t$361690$ = (t$361690 = value, t$361690 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361690));
    $this.height = t$361690$;
    return t$361690$;
  };
  _engine['DomOffscreenCanvasExtension|set#width'] = function DomOffscreenCanvasExtension$124set$35width($this, value) {
    let t$361691, t$361691$;
    if ($this == null) dart.nullFailed(I[270], 2925, 7, "#this");
    t$361691$ = (t$361691 = value, t$361691 == null ? null : js_interop['DoubleToJSNumber|get#toJS'](t$361691));
    $this.width = t$361691$;
    return t$361691$;
  };
  _engine['DomOffscreenCanvasExtension|get#getContext'] = function DomOffscreenCanvasExtension$124get$35getContext($this) {
    if ($this == null) dart.nullFailed(I[270], 2931, 11, "#this");
    return dart.fn((contextType, attributes = null) => {
      if (contextType == null) dart.nullFailed(I[270], 2931, 29, "contextType");
      return _engine['DomOffscreenCanvasExtension|getContext']($this, contextType, attributes);
    }, T$4.StringAndMapNToObjectN());
  };
  _engine['DomOffscreenCanvasExtension|getContext'] = function DomOffscreenCanvasExtension$124getContext($this, contextType, attributes = null) {
    if ($this == null) dart.nullFailed(I[270], 2931, 11, "#this");
    if (contextType == null) dart.nullFailed(I[270], 2931, 29, "contextType");
    if (attributes == null) {
      return $this.getContext(js_interop['StringToJSString|get#toJS'](contextType));
    } else {
      return $this.getContext(js_interop['StringToJSString|get#toJS'](contextType), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](attributes));
    }
  };
  _engine['DomOffscreenCanvasExtension|get#getGlContext'] = function DomOffscreenCanvasExtension$124get$35getGlContext($this) {
    if ($this == null) dart.nullFailed(I[270], 2939, 16, "#this");
    return dart.fn(majorVersion => {
      if (majorVersion == null) dart.nullFailed(I[270], 2939, 33, "majorVersion");
      return _engine['DomOffscreenCanvasExtension|getGlContext']($this, majorVersion);
    }, T$13.intToWebGLContext());
  };
  _engine['DomOffscreenCanvasExtension|getGlContext'] = function DomOffscreenCanvasExtension$124getGlContext($this, majorVersion) {
    if ($this == null) dart.nullFailed(I[270], 2939, 16, "#this");
    if (majorVersion == null) dart.nullFailed(I[270], 2939, 33, "majorVersion");
    if (majorVersion === 1) {
      return T$13.WebGLContext()[_as](dart.nullCheck(_engine['DomOffscreenCanvasExtension|getContext']($this, "webgl")));
    }
    return T$13.WebGLContext()[_as](dart.nullCheck(_engine['DomOffscreenCanvasExtension|getContext']($this, "webgl2")));
  };
  _engine['DomOffscreenCanvasExtension|get#convertToBlob'] = function DomOffscreenCanvasExtension$124get$35convertToBlob($this) {
    if ($this == null) dart.nullFailed(I[270], 2950, 19, "#this");
    return dart.fn((options = null) => _engine['DomOffscreenCanvasExtension|convertToBlob']($this, options), T$13.MapNOfObjectN$ObjectNToFutureOfDomBlob());
  };
  _engine['DomOffscreenCanvasExtension|convertToBlob'] = function DomOffscreenCanvasExtension$124convertToBlob($this, options = null) {
    if ($this == null) dart.nullFailed(I[270], 2950, 19, "#this");
    let blob = null;
    if (options == null) {
      blob = T$3.JSObject()[_as]($this.convertToBlob());
    } else {
      blob = T$3.JSObject()[_as]($this.convertToBlob(_engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](options)));
    }
    return js_util.promiseToFuture(T$10.DomBlob(), blob);
  };
  _engine['DomOffscreenCanvasExtension|get#transferToImageBitmap'] = function DomOffscreenCanvasExtension$124get$35transferToImageBitmap($this) {
    if ($this == null) dart.nullFailed(I[270], 2962, 18, "#this");
    return dart.fn(() => _engine['DomOffscreenCanvasExtension|transferToImageBitmap']($this), T$13.VoidToDomImageBitmap());
  };
  _engine['DomOffscreenCanvasExtension|transferToImageBitmap'] = function DomOffscreenCanvasExtension$124transferToImageBitmap($this) {
    if ($this == null) dart.nullFailed(I[270], 2962, 18, "#this");
    return T$9.DomImageBitmap()[_as](dart.nullCheck($this.transferToImageBitmap()));
  };
  _engine.createDomOffscreenCanvas = function createDomOffscreenCanvas(width, height) {
    if (width == null) dart.nullFailed(I[270], 2966, 49, "width");
    if (height == null) dart.nullFailed(I[270], 2966, 60, "height");
    return T$13.DomOffscreenCanvas()[_as](new dart.global.OffscreenCanvas(js_interop['NumToJSExtension|get#toJS'](width), js_interop['NumToJSExtension|get#toJS'](height)));
  };
  _engine.createDomFileReader = function createDomFileReader() {
    return T$13.DomFileReader()[_as](new dart.global.FileReader());
  };
  _engine['DomDocumentFragmentExtension|querySelector'] = function DomDocumentFragmentExtension$124querySelector($this, selectors) {
    if ($this == null) dart.nullFailed(I[270], 2993, 15, "#this");
    if (selectors == null) dart.nullFailed(I[270], 2993, 36, "selectors");
    return T$9.DomElementN()[_as]($this.querySelector(js_interop['StringToJSString|get#toJS'](selectors)));
  };
  _engine['DomDocumentFragmentExtension|get#querySelector'] = function DomDocumentFragmentExtension$124get$35querySelector($this) {
    if ($this == null) dart.nullFailed(I[270], 2993, 15, "#this");
    return dart.fn(selectors => {
      if (selectors == null) dart.nullFailed(I[270], 2993, 36, "selectors");
      return _engine['DomDocumentFragmentExtension|querySelector']($this, selectors);
    }, T$13.StringToDomElementN());
  };
  _engine['DomDocumentFragmentExtension|querySelectorAll'] = function DomDocumentFragmentExtension$124querySelectorAll($this, selectors) {
    if ($this == null) dart.nullFailed(I[270], 2997, 24, "#this");
    if (selectors == null) dart.nullFailed(I[270], 2997, 48, "selectors");
    return _engine.createDomListWrapper(T$9.DomElement(), T$10._DomList()[_as]($this.querySelectorAll(js_interop['StringToJSString|get#toJS'](selectors))));
  };
  _engine['DomDocumentFragmentExtension|get#querySelectorAll'] = function DomDocumentFragmentExtension$124get$35querySelectorAll($this) {
    if ($this == null) dart.nullFailed(I[270], 2997, 24, "#this");
    return dart.fn(selectors => {
      if (selectors == null) dart.nullFailed(I[270], 2997, 48, "selectors");
      return _engine['DomDocumentFragmentExtension|querySelectorAll']($this, selectors);
    }, T$13.StringToIterableOfDomElement());
  };
  _engine['DomShadowRootExtension|get#mode'] = function DomShadowRootExtension$124get$35mode($this) {
    let t$361704;
    if ($this == null) dart.nullFailed(I[270], 3011, 15, "#this");
    t$361704 = js_util.getProperty(T$.StringN(), $this, "mode");
    return t$361704 == null ? null : js_interop['JSStringToString|get#toDart'](t$361704);
  };
  _engine['DomShadowRootExtension|get#delegatesFocus'] = function DomShadowRootExtension$124get$35delegatesFocus($this) {
    let t$361705;
    if ($this == null) dart.nullFailed(I[270], 3015, 13, "#this");
    t$361705 = js_util.getProperty(T$.boolN(), $this, "delegatesFocus");
    return t$361705 == null ? null : js_interop['JSBooleanToBool|get#toDart'](t$361705);
  };
  _engine['DomShadowRootExtension|elementFromPoint'] = function DomShadowRootExtension$124elementFromPoint($this, x, y) {
    if ($this == null) dart.nullFailed(I[270], 3019, 15, "#this");
    if (x == null) dart.nullFailed(I[270], 3019, 36, "x");
    if (y == null) dart.nullFailed(I[270], 3019, 43, "y");
    return T$9.DomElementN()[_as]($this.elementFromPoint(js_interop['NumToJSExtension|get#toJS'](x), js_interop['NumToJSExtension|get#toJS'](y)));
  };
  _engine['DomShadowRootExtension|get#elementFromPoint'] = function DomShadowRootExtension$124get$35elementFromPoint($this) {
    if ($this == null) dart.nullFailed(I[270], 3019, 15, "#this");
    return dart.fn((x, y) => {
      if (x == null) dart.nullFailed(I[270], 3019, 36, "x");
      if (y == null) dart.nullFailed(I[270], 3019, 43, "y");
      return _engine['DomShadowRootExtension|elementFromPoint']($this, x, y);
    }, T$13.intAndintToDomElementN());
  };
  _engine['DomCSSStyleSheetExtension|get#cssRules'] = function DomCSSStyleSheetExtension$124get$35cssRules($this) {
    if ($this == null) dart.nullFailed(I[270], 3034, 28, "#this");
    return _engine.createDomListWrapper(T$13.DomCSSRule(), js_util.getProperty(T$10._DomList(), $this, "cssRules"));
  };
  _engine['DomCSSStyleSheetExtension|insertRule'] = function DomCSSStyleSheetExtension$124insertRule($this, rule, index = null) {
    if ($this == null) dart.nullFailed(I[270], 3041, 10, "#this");
    if (rule == null) dart.nullFailed(I[270], 3041, 28, "rule");
    if (index == null) {
      return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.insertRule(js_interop['StringToJSString|get#toJS'](rule))));
    } else {
      return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.insertRule(js_interop['StringToJSString|get#toJS'](rule), js_interop['NumToJSExtension|get#toJS'](index))));
    }
  };
  _engine['DomCSSStyleSheetExtension|get#insertRule'] = function DomCSSStyleSheetExtension$124get$35insertRule($this) {
    if ($this == null) dart.nullFailed(I[270], 3041, 10, "#this");
    return dart.fn((rule, index = null) => {
      if (rule == null) dart.nullFailed(I[270], 3041, 28, "rule");
      return _engine['DomCSSStyleSheetExtension|insertRule']($this, rule, index);
    }, T$13.StringAndintNTodouble());
  };
  _engine['DomCSSRuleExtension|get#cssText'] = function DomCSSRuleExtension$124get$35cssText($this) {
    if ($this == null) dart.nullFailed(I[270], 3059, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "cssText"));
  };
  _engine['DomScreenOrientationExtension|lock'] = function DomScreenOrientationExtension$124lock($this, orientation) {
    if ($this == null) dart.nullFailed(I[270], 3080, 19, "#this");
    if (orientation == null) dart.nullFailed(I[270], 3080, 31, "orientation");
    return js_util.promiseToFuture(T$.dynamic(), T$3.JSObject()[_as]($this.lock(js_interop['StringToJSString|get#toJS'](orientation))));
  };
  _engine['DomScreenOrientationExtension|get#lock'] = function DomScreenOrientationExtension$124get$35lock($this) {
    if ($this == null) dart.nullFailed(I[270], 3080, 19, "#this");
    return dart.fn(orientation => {
      if (orientation == null) dart.nullFailed(I[270], 3080, 31, "orientation");
      return _engine['DomScreenOrientationExtension|lock']($this, orientation);
    }, T$4.StringToFuture());
  };
  _engine['DomWebSocketExtension|send'] = function DomWebSocketExtension$124send($this, data) {
    let t$361714;
    if ($this == null) dart.nullFailed(I[270], 3120, 8, "#this");
    return $this.send((t$361714 = data, t$361714 == null ? null : _engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](t$361714)));
  };
  _engine['DomWebSocketExtension|get#send'] = function DomWebSocketExtension$124get$35send($this) {
    if ($this == null) dart.nullFailed(I[270], 3120, 8, "#this");
    return dart.fn(data => _engine['DomWebSocketExtension|send']($this, data), T$.ObjectNTovoid());
  };
  _engine.createDomWebSocket = function createDomWebSocket(url) {
    if (url == null) dart.nullFailed(I[270], 3123, 40, "url");
    return T$13.DomWebSocket()[_as](new dart.global.WebSocket(js_interop['StringToJSString|get#toJS'](url)));
  };
  _engine['DomMessageEventExtension|get#data'] = function DomMessageEventExtension$124get$35data($this) {
    let t$361716;
    if ($this == null) dart.nullFailed(I[270], 3132, 15, "#this");
    t$361716 = js_util.getProperty(T$.ObjectN(), $this, "data");
    return t$361716 == null ? null : _engine['JSAnyToObjectExtension|get#toObjectDeep'](t$361716);
  };
  _engine['DomMessageEventExtension|get#origin'] = function DomMessageEventExtension$124get$35origin($this) {
    if ($this == null) dart.nullFailed(I[270], 3136, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "origin"));
  };
  _engine['DomMessageEventExtension|get#source'] = function DomMessageEventExtension$124get$35source($this) {
    if ($this == null) dart.nullFailed(I[270], 3142, 29, "#this");
    return js_util.getProperty(T$13.DomMessageEventSource(), $this, "source");
  };
  _engine['DomMessageEventExtension|get#ports'] = function DomMessageEventExtension$124get$35ports($this) {
    if ($this == null) dart.nullFailed(I[270], 3144, 28, "#this");
    return js_util.getProperty(T$.ListOfObjectN(), $this, "ports")[$cast](T$13.DomMessagePort());
  };
  _engine['DomHTMLIFrameElementExtension|set#src'] = function DomHTMLIFrameElementExtension$124set$35src($this, value) {
    let t$361720, t$361720$;
    if ($this == null) dart.nullFailed(I[270], 3171, 7, "#this");
    t$361720$ = (t$361720 = value, t$361720 == null ? null : js_interop['StringToJSString|get#toJS'](t$361720));
    $this.src = t$361720$;
    return t$361720$;
  };
  _engine['DomHTMLIFrameElementExtension|get#src'] = function DomHTMLIFrameElementExtension$124get$35src($this) {
    let t$361721;
    if ($this == null) dart.nullFailed(I[270], 3175, 15, "#this");
    t$361721 = js_util.getProperty(T$.StringN(), $this, "src");
    return t$361721 == null ? null : js_interop['JSStringToString|get#toDart'](t$361721);
  };
  _engine['DomHTMLIFrameElementExtension|set#height'] = function DomHTMLIFrameElementExtension$124set$35height($this, value) {
    let t$361722, t$361722$;
    if ($this == null) dart.nullFailed(I[270], 3179, 7, "#this");
    t$361722$ = (t$361722 = value, t$361722 == null ? null : js_interop['StringToJSString|get#toJS'](t$361722));
    $this.height = t$361722$;
    return t$361722$;
  };
  _engine['DomHTMLIFrameElementExtension|set#width'] = function DomHTMLIFrameElementExtension$124set$35width($this, value) {
    let t$361723, t$361723$;
    if ($this == null) dart.nullFailed(I[270], 3183, 7, "#this");
    t$361723$ = (t$361723 = value, t$361723 == null ? null : js_interop['StringToJSString|get#toJS'](t$361723));
    $this.width = t$361723$;
    return t$361723$;
  };
  _engine.createDomHTMLIFrameElement = function createDomHTMLIFrameElement() {
    return T$13.DomHTMLIFrameElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "iframe"));
  };
  _engine['DomMessagePortExtension|get#postMessage'] = function DomMessagePortExtension$124get$35postMessage($this) {
    if ($this == null) dart.nullFailed(I[270], 3198, 8, "#this");
    return dart.fn(message => _engine['DomMessagePortExtension|postMessage']($this, message), T$.ObjectNTovoid());
  };
  _engine['DomMessagePortExtension|postMessage'] = function DomMessagePortExtension$124postMessage($this, message) {
    let t$361725;
    if ($this == null) dart.nullFailed(I[270], 3198, 8, "#this");
    return $this.postMessage((t$361725 = message, t$361725 == null ? null : _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](t$361725)));
  };
  _engine.createDomResizeObserver = function createDomResizeObserver(fn) {
    if (fn == null) dart.nullFailed(I[270], 3227, 72, "fn");
    return T$13.DomResizeObserver()[_as](new dart.global.ResizeObserver(js_util._functionToJS2(dart.fn((entries, observer) => {
      if (entries == null) dart.nullFailed(I[270], 3228, 40, "entries");
      if (observer == null) dart.nullFailed(I[270], 3228, 67, "observer");
      fn(js_interop['JSArrayToList|get#toDart'](T$.ObjectN(), entries)[$cast](T$13.DomResizeObserverEntry()), observer);
    }, T$13.JSArrayOfObjectNAndDomResizeObserverToNull()))));
  };
  _engine['DomTrustedTypePolicyExtension|createScriptURL'] = function DomTrustedTypePolicyExtension$124createScriptURL($this, input) {
    if ($this == null) dart.nullFailed(I[270], 3340, 23, "#this");
    if (input == null) dart.nullFailed(I[270], 3340, 46, "input");
    return T$13.DomTrustedScriptURL()[_as]($this.createScriptURL(js_interop['StringToJSString|get#toJS'](input)));
  };
  _engine['DomTrustedTypePolicyExtension|get#createScriptURL'] = function DomTrustedTypePolicyExtension$124get$35createScriptURL($this) {
    if ($this == null) dart.nullFailed(I[270], 3340, 23, "#this");
    return dart.fn(input => {
      if (input == null) dart.nullFailed(I[270], 3340, 46, "input");
      return _engine['DomTrustedTypePolicyExtension|createScriptURL']($this, input);
    }, T$13.StringToDomTrustedScriptURL());
  };
  _engine['DomTrustedScriptUrlExtension|get#url'] = function DomTrustedScriptUrlExtension$124get$35url($this) {
    if ($this == null) dart.nullFailed(I[270], 3360, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](T$.String()[_as]($this.toString()));
  };
  _engine.createTrustedScriptUrl = function createTrustedScriptUrl(url) {
    if (url == null) dart.nullFailed(I[270], 3390, 37, "url");
    if (js_util.getProperty(T$13.DomTrustedTypePolicyFactoryN(), dart.jsInteropNullCheck(dart.global.window), "trustedTypes") != null) {
      let trustedUrl = _engine['DomTrustedTypePolicyExtension|createScriptURL'](_engine._ttPolicy, url);
      if (!(_engine['DomTrustedScriptUrlExtension|get#url'](trustedUrl) !== "")) dart.assertFailed("URL: " + dart.str(url) + " rejected by TrustedTypePolicy", I[270], 3395, 12, "trustedUrl.url != ''");
      return trustedUrl;
    }
    return js_interop['StringToJSString|get#toJS'](url);
  };
  _engine.createDomMessageChannel = function createDomMessageChannel() {
    return T$13.DomMessageChannel()[_as](new dart.global.MessageChannel());
  };
  _engine.domInstanceOfString = function domInstanceOfString(element, objectType) {
    if (objectType == null) dart.nullFailed(I[270], 3404, 50, "objectType");
    return js_util.instanceOfString(element, objectType);
  };
  _engine['DomListExtension|get#length'] = function DomListExtension$124get$35length($this) {
    if ($this == null) dart.nullFailed(I[270], 3418, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "length"));
  };
  _engine['DomListExtension|item'] = function DomListExtension$124item($this, index) {
    if ($this == null) dart.nullFailed(I[270], 3422, 11, "#this");
    if (index == null) dart.nullFailed(I[270], 3422, 20, "index");
    return T$9.DomNode()[_as]($this.item(js_interop['NumToJSExtension|get#toJS'](index)));
  };
  _engine['DomListExtension|get#item'] = function DomListExtension$124get$35item($this) {
    if ($this == null) dart.nullFailed(I[270], 3422, 11, "#this");
    return dart.fn(index => {
      if (index == null) dart.nullFailed(I[270], 3422, 20, "index");
      return _engine['DomListExtension|item']($this, index);
    }, T$13.intToDomNode());
  };
  _engine.createDomListWrapper = function createDomListWrapper(T, list) {
    if (list == null) dart.nullFailed(I[270], 3459, 46, "list");
    return new (_engine._DomListWrapper$(T)).__(list)[$cast](T);
  };
  _engine['DomTouchListExtension|get#length'] = function DomTouchListExtension$124get$35length($this) {
    if ($this == null) dart.nullFailed(I[270], 3470, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "length"));
  };
  _engine['DomTouchListExtension|item'] = function DomTouchListExtension$124item($this, index) {
    if ($this == null) dart.nullFailed(I[270], 3474, 11, "#this");
    if (index == null) dart.nullFailed(I[270], 3474, 20, "index");
    return T$9.DomNode()[_as]($this.item(js_interop['NumToJSExtension|get#toJS'](index)));
  };
  _engine['DomTouchListExtension|get#item'] = function DomTouchListExtension$124get$35item($this) {
    if ($this == null) dart.nullFailed(I[270], 3474, 11, "#this");
    return dart.fn(index => {
      if (index == null) dart.nullFailed(I[270], 3474, 20, "index");
      return _engine['DomTouchListExtension|item']($this, index);
    }, T$13.intToDomNode());
  };
  _engine.createDomTouchListWrapper = function createDomTouchListWrapper(T, list) {
    if (list == null) dart.nullFailed(I[270], 3509, 56, "list");
    return new (_engine._DomTouchListWrapper$(T)).__(list)[$cast](T);
  };
  _engine['DomSegmenterExtension|segment'] = function DomSegmenterExtension$124segment($this, text) {
    if ($this == null) dart.nullFailed(I[270], 3548, 15, "#this");
    if (text == null) dart.nullFailed(I[270], 3548, 30, "text");
    return T$13.DomSegments()[_as]($this.segment(js_interop['StringToJSString|get#toJS'](text)));
  };
  _engine['DomSegmenterExtension|get#segment'] = function DomSegmenterExtension$124get$35segment($this) {
    if ($this == null) dart.nullFailed(I[270], 3548, 15, "#this");
    return dart.fn(text => {
      if (text == null) dart.nullFailed(I[270], 3548, 30, "text");
      return _engine['DomSegmenterExtension|segment']($this, text);
    }, T$13.StringToDomSegments());
  };
  _engine['DomSegmentsExtension|iterator'] = function DomSegmentsExtension$124iterator($this) {
    if ($this == null) dart.nullFailed(I[270], 3557, 34, "#this");
    let segmentIterator = T$10.DomIterator()[_as]($this[js_util.getProperty(T$.Object(), dart.jsInteropNullCheck(dart.global.Symbol), "iterator")]());
    return new (G$.DomIteratorWrapperOfDomSegment()).new(segmentIterator);
  };
  _engine['DomSegmentsExtension|get#iterator'] = function DomSegmentsExtension$124get$35iterator($this) {
    if ($this == null) dart.nullFailed(I[270], 3557, 34, "#this");
    return dart.fn(() => _engine['DomSegmentsExtension|iterator']($this), T$13.VoidToDomIteratorWrapperOfDomSegment());
  };
  _engine['DomIteratorResultExtension|get#done'] = function DomIteratorResultExtension$124get$35done($this) {
    if ($this == null) dart.nullFailed(I[270], 3580, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "done"));
  };
  _engine['DomSegmentExtension|get#index'] = function DomSegmentExtension$124get$35index($this) {
    if ($this == null) dart.nullFailed(I[270], 3613, 11, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "index"))[$toInt]();
  };
  _engine['DomSegmentExtension|get#isWordLike'] = function DomSegmentExtension$124get$35isWordLike($this) {
    if ($this == null) dart.nullFailed(I[270], 3617, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "isWordLike"));
  };
  _engine['DomSegmentExtension|get#segment'] = function DomSegmentExtension$124get$35segment($this) {
    if ($this == null) dart.nullFailed(I[270], 3621, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "segment"));
  };
  _engine['DomSegmentExtension|get#breakType'] = function DomSegmentExtension$124get$35breakType($this) {
    if ($this == null) dart.nullFailed(I[270], 3625, 14, "#this");
    return js_interop['JSStringToString|get#toDart'](js_util.getProperty(T$.String(), $this, "breakType"));
  };
  _engine.createIntlSegmenter = function createIntlSegmenter(opts) {
    let granularity = opts && 'granularity' in opts ? opts.granularity : null;
    if (granularity == null) dart.nullFailed(I[270], 3628, 51, "granularity");
    if (js_util.getProperty(T$.ObjectN(), dart.jsInteropNullCheck(dart.global.Intl), "Segmenter") == null) {
      dart.throw(new core.UnimplementedError.new("Intl.Segmenter() is not supported."));
    }
    return T$13.DomSegmenter()[_as](new dart.global.Intl.Segmenter(js_interop['ListToJSArray|get#toJS'](T$.ObjectN(), G$.JSArrayOfObjectN$1().of([])), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](new (G.IdentityMapOfString$String()).from(["granularity", granularity]))));
  };
  _engine['DomV8BreakIteratorExtension|get#first'] = function DomV8BreakIteratorExtension$124get$35first($this) {
    if ($this == null) dart.nullFailed(I[270], 3651, 10, "#this");
    return dart.fn(() => _engine['DomV8BreakIteratorExtension|first']($this), T$.VoidTodouble());
  };
  _engine['DomV8BreakIteratorExtension|first'] = function DomV8BreakIteratorExtension$124first($this) {
    if ($this == null) dart.nullFailed(I[270], 3651, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.first()));
  };
  _engine['DomV8BreakIteratorExtension|next'] = function DomV8BreakIteratorExtension$124next($this) {
    if ($this == null) dart.nullFailed(I[270], 3655, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.next()));
  };
  _engine['DomV8BreakIteratorExtension|get#next'] = function DomV8BreakIteratorExtension$124get$35next($this) {
    if ($this == null) dart.nullFailed(I[270], 3655, 10, "#this");
    return dart.fn(() => _engine['DomV8BreakIteratorExtension|next']($this), T$.VoidTodouble());
  };
  _engine['DomV8BreakIteratorExtension|current'] = function DomV8BreakIteratorExtension$124current($this) {
    if ($this == null) dart.nullFailed(I[270], 3659, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.current()));
  };
  _engine['DomV8BreakIteratorExtension|get#current'] = function DomV8BreakIteratorExtension$124get$35current($this) {
    if ($this == null) dart.nullFailed(I[270], 3659, 10, "#this");
    return dart.fn(() => _engine['DomV8BreakIteratorExtension|current']($this), T$.VoidTodouble());
  };
  _engine['DomV8BreakIteratorExtension|get#breakType'] = function DomV8BreakIteratorExtension$124get$35breakType($this) {
    if ($this == null) dart.nullFailed(I[270], 3663, 10, "#this");
    return dart.fn(() => _engine['DomV8BreakIteratorExtension|breakType']($this), T$.VoidToString());
  };
  _engine['DomV8BreakIteratorExtension|breakType'] = function DomV8BreakIteratorExtension$124breakType($this) {
    if ($this == null) dart.nullFailed(I[270], 3663, 10, "#this");
    return js_interop['JSStringToString|get#toDart'](T$.String()[_as]($this.breakType()));
  };
  _engine.createV8BreakIterator = function createV8BreakIterator() {
    if (js_util.getProperty(T$.ObjectN(), dart.jsInteropNullCheck(dart.global.Intl), "v8BreakIterator") == null) {
      dart.throw(new core.UnimplementedError.new("v8BreakIterator is not supported."));
    }
    return T$12.DomV8BreakIterator()[_as](new dart.global.Intl.v8BreakIterator(js_interop['ListToJSArray|get#toJS'](T$.ObjectN(), G$.JSArrayOfObjectN$1().of([])), _engine['ObjectToJSAnyExtension|get#toJSAnyDeep'](C[1055] || CT.C1055)));
  };
  _engine.transformWithOffset = function transformWithOffset(transform, offset) {
    if (transform == null) dart.nullFailed(I[271], 88, 37, "transform");
    if (offset == null) dart.nullFailed(I[271], 88, 58, "offset");
    if (dart.equals(offset, ui.Offset.zero)) {
      return transform;
    }
    let effectiveTransform = transform.clone();
    effectiveTransform.translate(offset.dx, offset.dy);
    return effectiveTransform;
  };
  _engine.drawParagraphElement = function drawParagraphElement(paragraph, offset, opts) {
    if (paragraph == null) dart.nullFailed(I[271], 252, 19, "paragraph");
    if (offset == null) dart.nullFailed(I[271], 253, 13, "offset");
    let transform = opts && 'transform' in opts ? opts.transform : null;
    if (!dart.test(paragraph.isLaidOut)) dart.assertFailed(null, I[271], 256, 10, "paragraph.isLaidOut");
    let paragraphElement = paragraph.toDomElement();
    if (transform != null) {
      _engine.setElementTransform(paragraphElement, _engine.transformWithOffset(transform, offset).storage);
    }
    return paragraphElement;
  };
  _engine.sendFontChangeMessage = function sendFontChangeMessage() {
    return async.async(T$.void(), function* sendFontChangeMessage() {
      if (!dart.test(_engine._fontChangeScheduled)) {
        _engine._fontChangeScheduled = true;
        _engine['DomWindowExtension|requestAnimationFrame'](dart.jsInteropNullCheck(dart.global.window), dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[394], 21, 38, "_");
          _engine._fontChangeScheduled = false;
          _engine.EnginePlatformDispatcher.instance.invokeOnPlatformMessage("flutter/system", _engine._fontChangeMessage, dart.fn(_ => {
          }, T$8.ByteDataNTovoid()));
        }, T$9.doubleTovoid()));
      }
    });
  };
  _engine.getFallbackFontList = function getFallbackFontList(useColorEmoji) {
    let t$361752, t$361751, t$361752$, t$361751$;
    if (useColorEmoji == null) dart.nullFailed(I[395], 9, 41, "useColorEmoji");
    return G$.JSArrayOfNotoFont().of([new _engine.NotoFont.new("Noto Sans", "notosans/v36/o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A99d41P6zHtY.ttf"), (t$361751 = "Noto Color Emoji", t$361752 = useColorEmoji, new _engine.NotoFont.new(t$361751, "notocoloremoji/v30/Yq6P-KqIXTD0t4D9z1ESnKM3-HpFab5s79iz64w.ttf", {enabled: t$361752})), (t$361751$ = "Noto Emoji", t$361752$ = !dart.test(useColorEmoji), new _engine.NotoFont.new(t$361751$, "notoemoji/v47/bMrnmSyK7YY-MEu6aWjPDs-ar6uWaGWuob-r0jwvS-FGJCMY.ttf", {enabled: t$361752$})), new _engine.NotoFont.new("Noto Music", "notomusic/v20/pe0rMIiSN5pO63htf1sxIteQB9Zra1U.ttf"), new _engine.NotoFont.new("Noto Sans Symbols", "notosanssymbols/v43/rP2up3q65FkAtHfwd-eIS2brbDN6gxP34F9jRRCe4W3gfQ8gavVFRkzrbQ.ttf"), new _engine.NotoFont.new("Noto Sans Symbols 2", "notosanssymbols2/v23/I_uyMoGduATTei9eI8daxVHDyfisHr71ypPqfX71-AI.ttf"), new _engine.NotoFont.new("Noto Sans Adlam", "notosansadlam/v22/neIczCCpqp0s5pPusPamd81eMfjPonvqdbYxxpgufnv0TGnBZLwhuvk.ttf"), new _engine.NotoFont.new("Noto Sans Anatolian Hieroglyphs", "notosansanatolianhieroglyphs/v16/ijw9s4roRME5LLRxjsRb8A0gKPSWq4BbDmHHu6j2pEtUJzZWXybIymc5QYo.ttf"), new _engine.NotoFont.new("Noto Sans Arabic", "notosansarabic/v18/nwpxtLGrOAZMl5nJ_wfgRg3DrWFZWsnVBJ_sS6tlqHHFlhQ5l3sQWIHPqzCfyGyvu3CBFQLaig.ttf"), new _engine.NotoFont.new("Noto Sans Armenian", "notosansarmenian/v43/ZgN0jOZKPa7CHqq0h37c7ReDUubm2SEdFXp7ig73qtTY5idb74R9UdM3y2nZLorxb60iYy6zF3Eg.ttf"), new _engine.NotoFont.new("Noto Sans Avestan", "notosansavestan/v21/bWti7ejKfBziStx7lIzKOLQZKhIJkyu9SASLji8U.ttf"), new _engine.NotoFont.new("Noto Sans Balinese", "notosansbalinese/v24/NaPwcYvSBuhTirw6IaFn6UrRDaqje-lpbbRtYf-Fwu2Ov7fdhE5Vd222PPY.ttf"), new _engine.NotoFont.new("Noto Sans Bamum", "notosansbamum/v27/uk-0EGK3o6EruUbnwovcbBTkkklK_Ya_PBHfNGTPEddO-_gLykxEkxA.ttf"), new _engine.NotoFont.new("Noto Sans Bassa Vah", "notosansbassavah/v17/PN_bRee-r3f7LnqsD5sax12gjZn7mBpL5YwUpA2MBdcFn4MaAc6p34gH-GD7.ttf"), new _engine.NotoFont.new("Noto Sans Batak", "notosansbatak/v20/gok2H6TwAEdtF9N8-mdTCQvT-Zdgo4_PHuk74A.ttf"), new _engine.NotoFont.new("Noto Sans Bengali", "notosansbengali/v20/Cn-SJsCGWQxOjaGwMQ6fIiMywrNJIky6nvd8BjzVMvJx2mcSPVFpVEqE-6KmsolLudCk8izI0lc.ttf"), new _engine.NotoFont.new("Noto Sans Bhaiksuki", "notosansbhaiksuki/v17/UcC63EosKniBH4iELXATsSBWdvUHXxhj8rLUdU4wh9U.ttf"), new _engine.NotoFont.new("Noto Sans Brahmi", "notosansbrahmi/v19/vEFK2-VODB8RrNDvZSUmQQIIByV18tK1W77HtMo.ttf"), new _engine.NotoFont.new("Noto Sans Buginese", "notosansbuginese/v18/esDM30ldNv-KYGGJpKGk18phe_7Da6_gtfuEXLmNtw.ttf"), new _engine.NotoFont.new("Noto Sans Buhid", "notosansbuhid/v22/Dxxy8jiXMW75w3OmoDXVWJD7YwzAe6tgnaFoGA.ttf"), new _engine.NotoFont.new("Noto Sans Canadian Aboriginal", "notosanscanadianaboriginal/v26/4C_TLjTuEqPj-8J01CwaGkiZ9os0iGVkezM1mUT-j_Lmlzda6uH_nnX1bzigWLn_yAsg0q0uhQ.ttf"), new _engine.NotoFont.new("Noto Sans Carian", "notosanscarian/v16/LDIpaoiONgYwA9Yc6f0gUILeMIOgs7ob9yGLmfI.ttf"), new _engine.NotoFont.new("Noto Sans Caucasian Albanian", "notosanscaucasianalbanian/v18/nKKA-HM_FYFRJvXzVXaANsU0VzsAc46QGOkWytlTs-TXrYDmoVmRSZo.ttf"), new _engine.NotoFont.new("Noto Sans Chakma", "notosanschakma/v17/Y4GQYbJ8VTEp4t3MKJSMjg5OIzhi4JjTQhYBeYo.ttf"), new _engine.NotoFont.new("Noto Sans Cham", "notosanscham/v30/pe06MIySN5pO62Z5YkFyQb_bbuRhe6D4yip43qfcERwcv7GykboaLg.ttf"), new _engine.NotoFont.new("Noto Sans Cherokee", "notosanscherokee/v20/KFOPCm6Yu8uF-29fiz9vQF9YWK6Z8O10cHNA0cSkZCHYWi5PDkm5rAffjl0.ttf"), new _engine.NotoFont.new("Noto Sans Coptic", "notosanscoptic/v21/iJWfBWmUZi_OHPqn4wq6kgqumOEd78u_VG0xR4Y.ttf"), new _engine.NotoFont.new("Noto Sans Cuneiform", "notosanscuneiform/v17/bMrrmTWK7YY-MF22aHGGd7H8PhJtvBDWgb9JlRQueeQ.ttf"), new _engine.NotoFont.new("Noto Sans Cypriot", "notosanscypriot/v19/8AtzGta9PYqQDjyp79a6f8Cj-3a3cxIsK5MPpahF.ttf"), new _engine.NotoFont.new("Noto Sans Deseret", "notosansdeseret/v17/MwQsbgPp1eKH6QsAVuFb9AZM6MMr2Vq9ZnJSZtQG.ttf"), new _engine.NotoFont.new("Noto Sans Devanagari", "notosansdevanagari/v25/TuGoUUFzXI5FBtUq5a8bjKYTZjtRU6Sgv3NaV_SNmI0b8QQCQmHn6B2OHjbL_08AlXQly-AzoFoW4Ow.ttf"), new _engine.NotoFont.new("Noto Sans Duployan", "notosansduployan/v17/gokzH7nwAEdtF9N8-mdTDx_X9JM5wsvrFsIn6WYDvA.ttf"), new _engine.NotoFont.new("Noto Sans Egyptian Hieroglyphs", "notosansegyptianhieroglyphs/v29/vEF42-tODB8RrNDvZSUmRhcQHzx1s7y_F9-j3qSzEcbEYindSVK8xRg7iw.ttf"), new _engine.NotoFont.new("Noto Sans Elbasan", "notosanselbasan/v16/-F6rfiZqLzI2JPCgQBnw400qp1trvHdlre4dFcFh.ttf"), new _engine.NotoFont.new("Noto Sans Elymaic", "notosanselymaic/v17/UqyKK9YTJW5liNMhTMqe9vUFP65ZD4AjWOT0zi2V.ttf"), new _engine.NotoFont.new("Noto Sans Ethiopic", "notosansethiopic/v47/7cHPv50vjIepfJVOZZgcpQ5B9FBTH9KGNfhSTgtoow1KVnIvyBoMSzUMacb-T35OK6DjwmfeaY9u.ttf"), new _engine.NotoFont.new("Noto Sans Georgian", 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"notosanshk/v31/nKKF-GM_FYFRJvXzVXaAPe97P1KHynJFP716qHB--oWTiYjNvVA.ttf"), new _engine.NotoFont.new("Noto Sans Hanunoo", "notosanshanunoo/v21/f0Xs0fCv8dxkDWlZSoXOj6CphMloFsEsEpgL_ix2.ttf"), new _engine.NotoFont.new("Noto Sans Hatran", "notosanshatran/v16/A2BBn4Ne0RgnVF3Lnko-0sOBIfL_mM83r1nwzDs.ttf"), new _engine.NotoFont.new("Noto Sans Hebrew", "notosanshebrew/v43/or3HQ7v33eiDljA1IufXTtVf7V6RvEEdhQlk0LlGxCyaeNKYZC0sqk3xXGiXd4qtoiJltutR2g.ttf"), new _engine.NotoFont.new("Noto Sans Imperial Aramaic", "notosansimperialaramaic/v16/a8IMNpjwKmHXpgXbMIsbTc_kvks91LlLetBr5itQrtdml3YfPNno.ttf"), new _engine.NotoFont.new("Noto Sans Indic Siyaq Numbers", "notosansindicsiyaqnumbers/v16/6xK5dTJFKcWIu4bpRBjRZRpsIYHabOeZ8UZLubTzpXNHKx2WPOpVd5Iu.ttf"), new _engine.NotoFont.new("Noto Sans Inscriptional Pahlavi", "notosansinscriptionalpahlavi/v16/ll8UK3GaVDuxR-TEqFPIbsR79Xxz9WEKbwsjpz7VklYlC7FCVtqVOAYK0QA.ttf"), new _engine.NotoFont.new("Noto Sans Inscriptional Parthian", 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_engine.NotoFont.new("Noto Sans Khmer", "notosanskhmer/v24/ijw3s5roRME5LLRxjsRb-gssOenAyendxrgV2c-Zw-9vbVUti_Z_dWgtWYuNAJz4kAbrddiA.ttf"), new _engine.NotoFont.new("Noto Sans Khojki", "notosanskhojki/v19/-nFnOHM29Oofr2wohFbTuPPKVWpmK_d709jy92k.ttf"), new _engine.NotoFont.new("Noto Sans Khudawadi", "notosanskhudawadi/v21/fdNi9t6ZsWBZ2k5ltHN73zZ5hc8HANlHIjRnVVXz9MY.ttf"), new _engine.NotoFont.new("Noto Sans Lao", "notosanslao/v30/bx6lNx2Ol_ixgdYWLm9BwxM3NW6BOkuf763Clj73CiQ_J1Djx9pidOt4ccbdf5MK3riB2w.ttf"), new _engine.NotoFont.new("Noto Sans Lepcha", "notosanslepcha/v19/0QI7MWlB_JWgA166SKhu05TekNS32AJstqBXgd4.ttf"), new _engine.NotoFont.new("Noto Sans Limbu", "notosanslimbu/v22/3JnlSDv90Gmq2mrzckOBBRRoNJVj0MF3OHRDnA.ttf"), new _engine.NotoFont.new("Noto Sans Linear A", "notosanslineara/v18/oPWS_l16kP4jCuhpgEGmwJOiA18FZj22zmHQAGQicw.ttf"), new _engine.NotoFont.new("Noto Sans Linear B", "notosanslinearb/v17/HhyJU4wt9vSgfHoORYOiXOckKNB737IV3BkFTq4EPw.ttf"), new _engine.NotoFont.new("Noto 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"notosansmongolian/v21/VdGCAYADGIwE0EopZx8xQfHlgEAMsrToxLsg6-av1x0.ttf"), new _engine.NotoFont.new("Noto Sans Mro", "notosansmro/v18/qWcsB6--pZv9TqnUQMhe9b39WDzRtjkho4M.ttf"), new _engine.NotoFont.new("Noto Sans Multani", "notosansmultani/v20/9Bty3ClF38_RfOpe1gCaZ8p30BOFO1A0pfCs5Kos.ttf"), new _engine.NotoFont.new("Noto Sans Myanmar", "notosansmyanmar/v20/AlZq_y1ZtY3ymOryg38hOCSdOnFq0En23OU4o1AC.ttf"), new _engine.NotoFont.new("Noto Sans NKo", "notosansnko/v6/esDX31ZdNv-KYGGJpKGk2_RpMpCMHMLBrdA.ttf"), new _engine.NotoFont.new("Noto Sans Nabataean", "notosansnabataean/v16/IFS4HfVJndhE3P4b5jnZ34DfsjO330dNoBJ9hK8kMK4.ttf"), new _engine.NotoFont.new("Noto Sans New Tai Lue", "notosansnewtailue/v22/H4cKBW-Pl9DZ0Xe_nHUapt7PovLXAhAnY7wqaLy-OJgU3p_pdeXAYUbghFPKzeY.ttf"), new _engine.NotoFont.new("Noto Sans Newa", "notosansnewa/v16/7r3fqXp6utEsO9pI4f8ok8sWg8n_qN4R5lNU.ttf"), new _engine.NotoFont.new("Noto Sans Nushu", "notosansnushu/v19/rnCw-xRQ3B7652emAbAe_Ai1IYaFWFAMArZKqQ.ttf"), new _engine.NotoFont.new("Noto Sans Ogham", "notosansogham/v17/kmKlZqk1GBDGN0mY6k5lmEmww4hrt5laQxcoCA.ttf"), new _engine.NotoFont.new("Noto Sans Ol Chiki", "notosansolchiki/v29/N0b92TJNOPt-eHmFZCdQbrL32r-4CvhzDzRwlxOQYuVALWk267I6gVrz5gQ.ttf"), new _engine.NotoFont.new("Noto Sans Old Hungarian", "notosansoldhungarian/v18/E213_cD6hP3GwCJPEUssHEM0KqLaHJXg2PiIgRfjbg5nCYXt.ttf"), new _engine.NotoFont.new("Noto Sans Old Italic", "notosansolditalic/v16/TuGOUUFzXI5FBtUq5a8bh68BJxxEVam7tWlRdRhtCC4d.ttf"), new _engine.NotoFont.new("Noto Sans Old North Arabian", "notosansoldnortharabian/v16/esDF30BdNv-KYGGJpKGk2tNiMt7Jar6olZDyNdr81zBQmUo_xw4ABw.ttf"), new _engine.NotoFont.new("Noto Sans Old Permic", "notosansoldpermic/v17/snf1s1q1-dF8pli1TesqcbUY4Mr-ElrwKLdXgv_dKYB5.ttf"), new _engine.NotoFont.new("Noto Sans Old Persian", "notosansoldpersian/v16/wEOjEAbNnc5caQTFG18FHrZr9Bp6-8CmIJ_tqOlQfx9CjA.ttf"), new _engine.NotoFont.new("Noto Sans Old Sogdian", 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Sans Syloti Nagri", "notosanssylotinagri/v20/uU9eCAQZ75uhfF9UoWDRiY3q7Sf_VFV3m4dGFVfxN87gsj0.ttf"), new _engine.NotoFont.new("Noto Sans Syriac", "notosanssyriac/v16/Ktk7AKuMeZjqPnXgyqribqzQqgW0LYiVqV7dXcP0C-VD9MaJyZfUL_FC.ttf"), new _engine.NotoFont.new("Noto Sans TC", "notosanstc/v35/-nFuOG829Oofr2wohFbTp9ifNAn722rq0MXz76Cy_CpOtma3uNQ.ttf"), new _engine.NotoFont.new("Noto Sans Tagalog", "notosanstagalog/v22/J7aFnoNzCnFcV9ZI-sUYuvote1R0wwEAA8jHexnL.ttf"), new _engine.NotoFont.new("Noto Sans Tagbanwa", "notosanstagbanwa/v18/Y4GWYbB8VTEp4t3MKJSMmQdIKjRtt_nZRjQEaYpGoQ.ttf"), new _engine.NotoFont.new("Noto Sans Tai Le", "notosanstaile/v17/vEFK2-VODB8RrNDvZSUmVxEATwR58tK1W77HtMo.ttf"), new _engine.NotoFont.new("Noto Sans Tai Tham", "notosanstaitham/v20/kJEbBv0U4hgtwxDUw2x9q7tbjLIfbPGHBoaVSAZ3MdLJBCUbPgquyaRGKMw.ttf"), new _engine.NotoFont.new("Noto Sans Tai Viet", "notosanstaiviet/v19/8QIUdj3HhN_lv4jf9vsE-9GMOLsaSPZr644fWsRO9w.ttf"), new _engine.NotoFont.new("Noto Sans Takri", "notosanstakri/v24/TuGJUVpzXI5FBtUq5a8bnKIOdTwQNO_W3khJXg.ttf"), new _engine.NotoFont.new("Noto Sans Tamil", "notosanstamil/v27/ieVc2YdFI3GCY6SyQy1KfStzYKZgzN1z4LKDbeZce-0429tBManUktuex7vGo70RqKDt_EvT.ttf"), new _engine.NotoFont.new("Noto Sans Tamil Supplement", "notosanstamilsupplement/v21/DdTz78kEtnooLS5rXF1DaruiCd_bFp_Ph4sGcn7ax_vsAeMkeq1x.ttf"), new _engine.NotoFont.new("Noto Sans Telugu", "notosanstelugu/v26/0FlxVOGZlE2Rrtr-HmgkMWJNjJ5_RyT8o8c7fHkeg-esVC5dzHkHIJQqrEntezbqQUbf-3v37w.ttf"), new _engine.NotoFont.new("Noto Sans Thaana", "notosansthaana/v24/C8c14dM-vnz-s-3jaEsxlxHkBH-WZOETXfoQrfQ9Y4XrbhLhnu4-tbNu.ttf"), new _engine.NotoFont.new("Noto Sans Thai", "notosansthai/v25/iJWnBXeUZi_OHPqn4wq6hQ2_hbJ1xyN9wd43SofNWcd1MKVQt_So_9CdU5RtpzF-QRvzzXg.ttf"), new _engine.NotoFont.new("Noto Sans Tifinagh", "notosanstifinagh/v20/I_uzMoCduATTei9eI8dawkHIwvmhCvbn6rnEcXfs4Q.ttf"), new _engine.NotoFont.new("Noto Sans Tirhuta", "notosanstirhuta/v16/t5t6IQYRNJ6TWjahPR6X-M-apUyby7uGUBsTrn5P.ttf"), new _engine.NotoFont.new("Noto Sans Ugaritic", "notosansugaritic/v16/3qTwoiqhnSyU8TNFIdhZVCwbjCpkAXXkMhoIkiazfg.ttf"), new _engine.NotoFont.new("Noto Sans Vai", "notosansvai/v17/NaPecZTSBuhTirw6IaFn_UrURMTsDIRSfr0.ttf"), new _engine.NotoFont.new("Noto Sans Wancho", "notosanswancho/v17/zrf-0GXXyfn6Fs0lH9P4cUubP0GBqAPopiRfKp8.ttf"), new _engine.NotoFont.new("Noto Sans Warang Citi", "notosanswarangciti/v17/EYqtmb9SzL1YtsZSScyKDXIeOv3w-zgsNvKRpeVCCXzdgA.ttf"), new _engine.NotoFont.new("Noto Sans Yi", "notosansyi/v19/sJoD3LFXjsSdcnzn071rO3apxVDJNVgSNg.ttf"), new _engine.NotoFont.new("Noto Sans Zanabazar Square", "notosanszanabazarsquare/v19/Cn-jJsuGWQxOjaGwMQ6fOicyxLBEMRfDtkzl4uagQtJxOCEgN0Gc.ttf"), new _engine.NotoFont.new("Noto Serif Tibetan", "notoseriftibetan/v22/gokGH7nwAEdtF9N45n0Vaz7O-pk0wsvxHeDXMfqguoCmIrYcPS7rdSy_32c.ttf")]);
  };
  _engine.fetchFontManifest = function fetchFontManifest(assetManager) {
    if (assetManager == null) dart.nullFailed(I[273], 28, 60, "assetManager");
    return async.async(T$13.FontManifest(), function* fetchFontManifest() {
      let response = T$11.HttpFetchResponse()[_as](yield assetManager.loadAsset("FontManifest.json"));
      if (!dart.test(response.hasPayload)) {
        _engine.printWarning("Font manifest does not exist at `" + dart.str(response.url) + "` - ignoring.");
        return new _engine.FontManifest.new(G$.JSArrayOfFontFamily().of([]));
      }
      let decoder = (C[147] || CT.C147).fuse(T$.ObjectN(), C[140] || CT.C140);
      let fontManifestJson = null;
      let inputSink = decoder.startChunkedConversion(new (G$._SimpleCallbackSinkOfObjectN()).new(dart.fn(accumulated => {
        if (accumulated == null) dart.nullFailed(I[273], 39, 22, "accumulated");
        if (accumulated[$length] !== 1) {
          dart.throw(new core.AssertionError.new("There was a problem trying to load FontManifest.json"));
        }
        fontManifestJson = accumulated[$first];
      }, T$2.ListOfObjectNTovoid())));
      yield _engine['HttpFetchResponseExtension|read'](T$3.NativeUint8List(), response, dart.fn(chunk => {
        if (chunk == null) dart.nullFailed(I[273], 46, 37, "chunk");
        return inputSink.add(js_interop['JSUint8ArrayToUint8List|get#toDart'](chunk));
      }, T$13.NativeUint8ListTovoid()));
      inputSink.close();
      if (fontManifestJson == null) {
        dart.throw(new core.AssertionError.new("There was a problem trying to load FontManifest.json"));
      }
      let families = T$.List()[_as](dart.nullCheck(fontManifestJson))[$map](T$13.FontFamily(), dart.fn(fontFamilyJson => {
        let fontFamily = T$2.MapOfString$dynamic()[_as](fontFamilyJson);
        let familyName = _engine['JsonExtensions|readString'](fontFamily, "family");
        let fontAssets = _engine['JsonExtensions|readList'](fontFamily, "fonts");
        return new _engine.FontFamily.new(familyName, fontAssets[$map](T$13.FontAsset(), dart.fn(fontAssetJson => {
          let asset = null;
          let descriptors = new (G.IdentityMapOfString$String()).new();
          for (let descriptor of T$2.MapOfString$dynamic()[_as](fontAssetJson)[$entries]) {
            if (descriptor.key === "asset") {
              asset = T$.String()[_as](descriptor.value);
            } else {
              descriptors[$_set](descriptor.key, dart.str(descriptor.value));
            }
          }
          if (asset == null) {
            dart.throw(new core.AssertionError.new("Invalid Font manifest, missing 'asset' key on font."));
          }
          return new _engine.FontAsset.new(asset, descriptors);
        }, T$13.dynamicToFontAsset()))[$toList]());
      }, T$13.dynamicToFontFamily()))[$toList]();
      return new _engine.FontManifest.new(families);
    });
  };
  _engine.blendModeToCssMixBlendMode = function blendModeToCssMixBlendMode(blendMode) {
    if (blendMode == null) {
      return null;
    }
    switch (blendMode) {
      case C[555] || CT.C555:
        {
          return "source-over";
        }
      case C[557] || CT.C557:
        {
          return "source-in";
        }
      case C[559] || CT.C559:
        {
          return "source-out";
        }
      case C[561] || CT.C561:
        {
          return "source-atop";
        }
      case C[556] || CT.C556:
        {
          return "destination-over";
        }
      case C[558] || CT.C558:
        {
          return "destination-in";
        }
      case C[560] || CT.C560:
        {
          return "destination-out";
        }
      case C[562] || CT.C562:
        {
          return "destination-atop";
        }
      case C[564] || CT.C564:
        {
          return "lighten";
        }
      case C[553] || CT.C553:
        {
          return "copy";
        }
      case C[563] || CT.C563:
        {
          return "xor";
        }
      case C[576] || CT.C576:
      case C[565] || CT.C565:
        {
          return "multiply";
        }
      case C[566] || CT.C566:
        {
          return "screen";
        }
      case C[567] || CT.C567:
        {
          return "overlay";
        }
      case C[568] || CT.C568:
        {
          return "darken";
        }
      case C[569] || CT.C569:
        {
          return "lighten";
        }
      case C[570] || CT.C570:
        {
          return "color-dodge";
        }
      case C[571] || CT.C571:
        {
          return "color-burn";
        }
      case C[572] || CT.C572:
        {
          return "hard-light";
        }
      case C[573] || CT.C573:
        {
          return "soft-light";
        }
      case C[574] || CT.C574:
        {
          return "difference";
        }
      case C[575] || CT.C575:
        {
          return "exclusion";
        }
      case C[577] || CT.C577:
        {
          return "hue";
        }
      case C[578] || CT.C578:
        {
          return "saturation";
        }
      case C[579] || CT.C579:
        {
          return "color";
        }
      case C[580] || CT.C580:
        {
          return "luminosity";
        }
      default:
        {
          dart.throw(new core.UnimplementedError.new("Flutter Web does not support the blend mode: " + dart.str(blendMode)));
        }
    }
  };
  _engine.blendModeToSvgEnum = function blendModeToSvgEnum(blendMode) {
    if (blendMode == null) {
      return null;
    }
    switch (blendMode) {
      case C[552] || CT.C552:
        {
          return C[1056] || CT.C1056;
        }
      case C[555] || CT.C555:
        {
          return C[1057] || CT.C1057;
        }
      case C[557] || CT.C557:
        {
          return C[1058] || CT.C1058;
        }
      case C[559] || CT.C559:
        {
          return C[1059] || CT.C1059;
        }
      case C[561] || CT.C561:
        {
          return C[1060] || CT.C1060;
        }
      case C[556] || CT.C556:
        {
          return C[1061] || CT.C1061;
        }
      case C[558] || CT.C558:
        {
          return C[1062] || CT.C1062;
        }
      case C[560] || CT.C560:
        {
          return C[1063] || CT.C1063;
        }
      case C[562] || CT.C562:
        {
          return C[1064] || CT.C1064;
        }
      case C[564] || CT.C564:
        {
          return C[1065] || CT.C1065;
        }
      case C[553] || CT.C553:
        {
          return C[1066] || CT.C1066;
        }
      case C[563] || CT.C563:
        {
          return C[1067] || CT.C1067;
        }
      case C[576] || CT.C576:
      case C[565] || CT.C565:
        {
          return C[1068] || CT.C1068;
        }
      case C[566] || CT.C566:
        {
          return C[1069] || CT.C1069;
        }
      case C[567] || CT.C567:
        {
          return C[1070] || CT.C1070;
        }
      case C[568] || CT.C568:
        {
          return C[1071] || CT.C1071;
        }
      case C[569] || CT.C569:
        {
          return C[1072] || CT.C1072;
        }
      case C[570] || CT.C570:
        {
          return C[1073] || CT.C1073;
        }
      case C[571] || CT.C571:
        {
          return C[1074] || CT.C1074;
        }
      case C[572] || CT.C572:
        {
          return C[1075] || CT.C1075;
        }
      case C[573] || CT.C573:
        {
          return C[1076] || CT.C1076;
        }
      case C[574] || CT.C574:
        {
          return C[1077] || CT.C1077;
        }
      case C[575] || CT.C575:
        {
          return C[1078] || CT.C1078;
        }
      case C[577] || CT.C577:
        {
          return C[1079] || CT.C1079;
        }
      case C[578] || CT.C578:
        {
          return C[1080] || CT.C1080;
        }
      case C[579] || CT.C579:
        {
          return C[1081] || CT.C1081;
        }
      case C[580] || CT.C580:
        {
          return C[1082] || CT.C1082;
        }
      default:
        {
          if (!false) dart.assertFailed("Flutter Web does not support the blend mode: " + dart.str(blendMode), I[278], 1302, 9, "false");
          return C[1083] || CT.C1083;
        }
    }
  };
  _engine.stringForStrokeCap = function stringForStrokeCap(strokeCap) {
    if (strokeCap == null) {
      return null;
    }
    switch (strokeCap) {
      case C[541] || CT.C541:
        {
          return "butt";
        }
      case C[542] || CT.C542:
        {
          return "round";
        }
      case C[543] || CT.C543:
      default:
        {
          return "square";
        }
    }
  };
  _engine.stringForStrokeJoin = function stringForStrokeJoin(strokeJoin) {
    if (strokeJoin == null) dart.nullFailed(I[278], 1325, 42, "strokeJoin");
    switch (strokeJoin) {
      case C[546] || CT.C546:
        {
          return "round";
        }
      case C[547] || CT.C547:
        {
          return "bevel";
        }
      case C[545] || CT.C545:
      default:
        {
          return "miter";
        }
    }
  };
  _engine._clipContent = function _clipContent(clipStack, content, offset, currentTransform) {
    let t$361751, t$361751$, t$361751$0, t$361751$1, t$361751$2, t$361751$3, t$361751$4, t$361751$5;
    if (clipStack == null) dart.nullFailed(I[278], 1344, 51, "clipStack");
    if (content == null) dart.nullFailed(I[278], 1344, 73, "content");
    if (offset == null) dart.nullFailed(I[278], 1345, 15, "offset");
    if (currentTransform == null) dart.nullFailed(I[278], 1345, 31, "currentTransform");
    let root = null;
    let curElement = null;
    let clipDefs = G$.JSArrayOfDomElement().of([]);
    let len = clipStack[$length];
    for (let clipIndex = 0; clipIndex < dart.notNull(len); clipIndex = clipIndex + 1) {
      let entry = clipStack[$_get](clipIndex);
      let newElement = _engine.createDomHTMLDivElement();
      _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), newElement, "style"), "absolute");
      _engine.applyWebkitClipFix(newElement);
      if (root == null) {
        root = newElement;
      } else {
        dart.nullCheck(curElement).append(newElement);
      }
      curElement = newElement;
      let rect = entry.rect;
      let newClipTransform = entry.currentTransform;
      let transformKind = _engine.transformKindOf(newClipTransform.storage);
      let requiresTransformStyle = transformKind == _engine.TransformKind.complex;
      if (rect != null) {
        let clipOffsetX = rect.left;
        let clipOffsetY = rect.top;
        newClipTransform = (t$361751 = newClipTransform.clone(), (() => {
          t$361751.translate(clipOffsetX, clipOffsetY);
          return t$361751;
        })());
        t$361751$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), curElement, "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#overflow'](t$361751$, "hidden");
          _engine['DomCSSStyleDeclarationExtension|set#width'](t$361751$, dart.strSafe(dart.notNull(rect.right) - dart.notNull(clipOffsetX)) + "px");
          _engine['DomCSSStyleDeclarationExtension|set#height'](t$361751$, dart.strSafe(dart.notNull(rect.bottom) - dart.notNull(clipOffsetY)) + "px");
          return t$361751$;
        })();
        _engine.setElementTransform(curElement, newClipTransform.storage);
      } else if (entry.rrect != null) {
        let roundRect = dart.nullCheck(entry.rrect);
        let borderRadius = dart.str(roundRect.tlRadiusX) + "px " + dart.str(roundRect.trRadiusX) + "px " + dart.str(roundRect.brRadiusX) + "px " + dart.str(roundRect.blRadiusX) + "px";
        let clipOffsetX = roundRect.left;
        let clipOffsetY = roundRect.top;
        newClipTransform = (t$361751$0 = newClipTransform.clone(), (() => {
          t$361751$0.translate(clipOffsetX, clipOffsetY);
          return t$361751$0;
        })());
        t$361751$1 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), curElement, "style");
        (() => {
          _engine['DomCSSStyleDeclarationExtension|set#borderRadius'](t$361751$1, borderRadius);
          _engine['DomCSSStyleDeclarationExtension|set#overflow'](t$361751$1, "hidden");
          _engine['DomCSSStyleDeclarationExtension|set#width'](t$361751$1, dart.strSafe(dart.notNull(roundRect.right) - dart.notNull(clipOffsetX)) + "px");
          _engine['DomCSSStyleDeclarationExtension|set#height'](t$361751$1, dart.strSafe(dart.notNull(roundRect.bottom) - dart.notNull(clipOffsetY)) + "px");
          return t$361751$1;
        })();
        _engine.setElementTransform(curElement, newClipTransform.storage);
      } else if (entry.path != null) {
        let surfacePath = T$9.SurfacePath()[_as](dart.nullCheck(entry.path));
        if (surfacePath.pathRef.isOval !== -1) {
          let ovalBounds = surfacePath.getBounds();
          let clipOffsetX = ovalBounds.left;
          let clipOffsetY = ovalBounds.top;
          newClipTransform = (t$361751$2 = newClipTransform.clone(), (() => {
            t$361751$2.translate(clipOffsetX, clipOffsetY);
            return t$361751$2;
          })());
          t$361751$3 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), curElement, "style");
          (() => {
            _engine['DomCSSStyleDeclarationExtension|set#overflow'](t$361751$3, "hidden");
            _engine['DomCSSStyleDeclarationExtension|set#width'](t$361751$3, dart.str(ovalBounds.width) + "px");
            _engine['DomCSSStyleDeclarationExtension|set#height'](t$361751$3, dart.str(ovalBounds.height) + "px");
            _engine['DomCSSStyleDeclarationExtension|set#borderRadius'](t$361751$3, "50%");
            return t$361751$3;
          })();
          _engine.setElementTransform(curElement, newClipTransform.storage);
        } else {
          t$361751$4 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), curElement, "style");
          (() => {
            _engine['DomCSSStyleDeclarationExtension|set#transform'](t$361751$4, _engine.matrix4ToCssTransform(newClipTransform));
            _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$361751$4, "0 0 0");
            return t$361751$4;
          })();
          let clipElement = _engine.createSvgClipDef(curElement, dart.nullCheck(entry.path));
          clipDefs[$add](clipElement);
        }
      }
      let reverseTransformDiv = _engine.createDomHTMLDivElement();
      _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), reverseTransformDiv, "style"), "absolute");
      _engine.setElementTransform(reverseTransformDiv, (t$361751$5 = newClipTransform.clone(), (() => {
        t$361751$5.invert();
        return t$361751$5;
      })()).storage);
      if (requiresTransformStyle) {
        _engine['DomCSSStyleDeclarationExtension|set#transformStyle'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), curElement, "style"), "preserve-3d");
        _engine['DomCSSStyleDeclarationExtension|set#transformStyle'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), reverseTransformDiv, "style"), "preserve-3d");
      }
      curElement.append(reverseTransformDiv);
      curElement = reverseTransformDiv;
    }
    _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(root), "style"), "absolute");
    dart.nullCheck(curElement).append(content);
    _engine.setElementTransform(content, _engine.transformWithOffset(currentTransform, offset).storage);
    return (() => {
      let t$361751 = G$.JSArrayOfDomElement().of([root]);
      t$361751[$addAll](clipDefs);
      return t$361751;
    })();
  };
  _engine.maskFilterToCanvasFilter = function maskFilterToCanvasFilter(maskFilter) {
    if (!(ui_web.browser.browserEngine != ui_web.BrowserEngine.webkit)) dart.assertFailed("WebKit (Safari) does not support `filter` canvas property.", I[278], 1450, 5, "ui_web.browser.browserEngine != ui_web.BrowserEngine.webkit");
    if (maskFilter != null) {
      return "blur(" + dart.strSafe(dart.notNull(maskFilter.webOnlySigma) * dart.notNull(_engine.EngineFlutterDisplay.instance.devicePixelRatio)) + "px)";
    } else {
      return "none";
    }
  };
  _engine.createSvgClipDef = function createSvgClipDef(element, clipPath) {
    let t$361752;
    if (element == null) dart.nullFailed(I[280], 240, 43, "element");
    if (clipPath == null) dart.nullFailed(I[280], 240, 60, "clipPath");
    let pathBounds = clipPath.getBounds();
    let svgClipPath = _engine.pathToSvgClipPath(clipPath, {scaleX: 1.0 / dart.notNull(pathBounds.right), scaleY: 1.0 / dart.notNull(pathBounds.bottom)});
    _engine.setClipPath(element, _engine.createSvgClipUrl());
    t$361752 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#width'](t$361752, dart.str(pathBounds.right) + "px");
      _engine['DomCSSStyleDeclarationExtension|set#height'](t$361752, dart.str(pathBounds.bottom) + "px");
      return t$361752;
    })();
    return svgClipPath;
  };
  _engine.svgFilterFromBlendMode = function svgFilterFromBlendMode(filterColor, colorFilterBlendMode) {
    if (colorFilterBlendMode == null) dart.nullFailed(I[281], 108, 41, "colorFilterBlendMode");
    let svgFilter = null;
    switch (colorFilterBlendMode) {
      case C[557] || CT.C557:
      case C[561] || CT.C561:
        {
          svgFilter = _engine._srcInColorFilterToSvg(filterColor);
          break;
        }
      case C[559] || CT.C559:
        {
          svgFilter = _engine._srcOutColorFilterToSvg(filterColor);
          break;
        }
      case C[562] || CT.C562:
        {
          svgFilter = _engine._dstATopColorFilterToSvg(filterColor);
          break;
        }
      case C[563] || CT.C563:
        {
          svgFilter = _engine._xorColorFilterToSvg(filterColor);
          break;
        }
      case C[564] || CT.C564:
        {
          svgFilter = _engine._compositeColorFilterToSvg(filterColor, 0.0, 1.0, 1.0, 0.0);
          break;
        }
      case C[565] || CT.C565:
        {
          svgFilter = _engine._modulateColorFilterToSvg(dart.nullCheck(filterColor));
          break;
        }
      case C[567] || CT.C567:
        {
          svgFilter = _engine._blendColorFilterToSvg(filterColor, dart.nullCheck(_engine.blendModeToSvgEnum(ui.BlendMode.hardLight)), {swapLayers: true});
          break;
        }
      case C[578] || CT.C578:
      case C[570] || CT.C570:
      case C[571] || CT.C571:
      case C[577] || CT.C577:
      case C[579] || CT.C579:
      case C[580] || CT.C580:
      case C[576] || CT.C576:
      case C[566] || CT.C566:
      case C[568] || CT.C568:
      case C[569] || CT.C569:
      case C[572] || CT.C572:
      case C[573] || CT.C573:
      case C[574] || CT.C574:
      case C[575] || CT.C575:
        {
          svgFilter = _engine._blendColorFilterToSvg(filterColor, dart.nullCheck(_engine.blendModeToSvgEnum(colorFilterBlendMode)));
          break;
        }
      case C[553] || CT.C553:
      case C[554] || CT.C554:
      case C[558] || CT.C558:
      case C[560] || CT.C560:
      case C[556] || CT.C556:
      case C[552] || CT.C552:
      case C[555] || CT.C555:
        {
          dart.throw(new core.UnimplementedError.new("Blend mode not supported in HTML renderer: " + dart.str(colorFilterBlendMode)));
        }
      default:
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
    }
    return svgFilter;
  };
  _engine.svgFilterFromColorMatrix = function svgFilterFromColorMatrix(matrix) {
    if (matrix == null) dart.nullFailed(I[281], 313, 49, "matrix");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeColorMatrix(matrix, {result: "comp"});
    return builder.build();
  };
  _engine._srcInColorFilterToSvg = function _srcInColorFilterToSvg(color) {
    let t$361752, t$361752$;
    let builder = new _engine.SvgFilterBuilder.new();
    builder.colorInterpolationFilters = "sRGB";
    builder.setFeColorMatrix(C[1084] || CT.C1084, {result: "destalpha"});
    builder.setFeFlood({floodColor: (t$361752$ = (t$361752 = color, t$361752 == null ? null : _engine['CssColor|toCssString'](t$361752)), t$361752$ == null ? "" : t$361752$), floodOpacity: "1", result: "flood"});
    builder.setFeComposite({in1: "flood", in2: "destalpha", operator: 6, k1: 1, k2: 0, k3: 0, k4: 0, result: "comp"});
    return builder.build();
  };
  _engine._dstATopColorFilterToSvg = function _dstATopColorFilterToSvg(color) {
    let t$361752, t$361752$;
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeFlood({floodColor: (t$361752$ = (t$361752 = color, t$361752 == null ? null : _engine['CssColor|toCssString'](t$361752)), t$361752$ == null ? "" : t$361752$), floodOpacity: "1", result: "flood"});
    builder.setFeComposite({in1: "SourceGraphic", in2: "flood", operator: 4, result: "comp"});
    return builder.build();
  };
  _engine._srcOutColorFilterToSvg = function _srcOutColorFilterToSvg(color) {
    let t$361752, t$361752$;
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeFlood({floodColor: (t$361752$ = (t$361752 = color, t$361752 == null ? null : _engine['CssColor|toCssString'](t$361752)), t$361752$ == null ? "" : t$361752$), floodOpacity: "1", result: "flood"});
    builder.setFeComposite({in1: "flood", in2: "SourceGraphic", operator: 3, result: "comp"});
    return builder.build();
  };
  _engine._xorColorFilterToSvg = function _xorColorFilterToSvg(color) {
    let t$361752, t$361752$;
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeFlood({floodColor: (t$361752$ = (t$361752 = color, t$361752 == null ? null : _engine['CssColor|toCssString'](t$361752)), t$361752$ == null ? "" : t$361752$), floodOpacity: "1", result: "flood"});
    builder.setFeComposite({in1: "flood", in2: "SourceGraphic", operator: 5, result: "comp"});
    return builder.build();
  };
  _engine._compositeColorFilterToSvg = function _compositeColorFilterToSvg(color, k1, k2, k3, k4) {
    let t$361752, t$361752$;
    if (k1 == null) dart.nullFailed(I[281], 415, 29, "k1");
    if (k2 == null) dart.nullFailed(I[281], 415, 40, "k2");
    if (k3 == null) dart.nullFailed(I[281], 415, 51, "k3");
    if (k4 == null) dart.nullFailed(I[281], 415, 62, "k4");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeFlood({floodColor: (t$361752$ = (t$361752 = color, t$361752 == null ? null : _engine['CssColor|toCssString'](t$361752)), t$361752$ == null ? "" : t$361752$), floodOpacity: "1", result: "flood"});
    builder.setFeComposite({in1: "flood", in2: "SourceGraphic", operator: 6, k1: k1, k2: k2, k3: k3, k4: k4, result: "comp"});
    return builder.build();
  };
  _engine._modulateColorFilterToSvg = function _modulateColorFilterToSvg(color) {
    if (color == null) dart.nullFailed(I[281], 438, 46, "color");
    let r = dart.notNull(color.red) / 255.0;
    let b = dart.notNull(color.blue) / 255.0;
    let g = dart.notNull(color.green) / 255.0;
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeColorMatrix(G$.JSArrayOfdouble().of([0.0, 0.0, 0.0, 0.0, r, 0.0, 0.0, 0.0, 0.0, g, 0.0, 0.0, 0.0, 0.0, b, 0.0, 0.0, 0.0, 1.0, 0.0]), {result: "recolor"});
    builder.setFeComposite({in1: "recolor", in2: "SourceGraphic", operator: 6, k1: 1, k2: 0, k3: 0, k4: 0, result: "comp"});
    return builder.build();
  };
  _engine._blendColorFilterToSvg = function _blendColorFilterToSvg(color, svgBlendMode, opts) {
    let t$361752, t$361752$;
    if (svgBlendMode == null) dart.nullFailed(I[281], 467, 64, "svgBlendMode");
    let swapLayers = opts && 'swapLayers' in opts ? opts.swapLayers : false;
    if (swapLayers == null) dart.nullFailed(I[281], 468, 11, "swapLayers");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeFlood({floodColor: (t$361752$ = (t$361752 = color, t$361752 == null ? null : _engine['CssColor|toCssString'](t$361752)), t$361752$ == null ? "" : t$361752$), floodOpacity: "1", result: "flood"});
    if (dart.test(swapLayers)) {
      builder.setFeBlend({in1: "SourceGraphic", in2: "flood", mode: svgBlendMode.blendMode});
    } else {
      builder.setFeBlend({in1: "flood", in2: "SourceGraphic", mode: svgBlendMode.blendMode});
    }
    return builder.build();
  };
  _engine._createContainer = function _createContainer() {
    let t$361752;
    let container = _engine.createDomHTMLDivElement();
    t$361752 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), container, "style");
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#position'](t$361752, "fixed");
      _engine['DomCSSStyleDeclarationExtension|set#top'](t$361752, "0");
      _engine['DomCSSStyleDeclarationExtension|set#right'](t$361752, "0");
      _engine['DomCSSStyleDeclarationExtension|set#padding'](t$361752, "6px");
      _engine['DomCSSStyleDeclarationExtension|set#color'](t$361752, "#fff");
      _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$361752, "#000");
      _engine['DomCSSStyleDeclarationExtension|set#opacity'](t$361752, "0.8");
      return t$361752;
    })();
    return container;
  };
  _engine.blurColor = function blurColor(color, sigma) {
    if (color == null) dart.nullFailed(I[283], 145, 29, "color");
    if (sigma == null) dart.nullFailed(I[283], 145, 43, "sigma");
    let strength = math.min(T$.double(), math.sqrt(sigma) / (3.141592653589793 * 2.0), 1.0);
    let reducedAlpha = ((1.0 - strength) * dart.notNull(color.alpha))[$round]();
    return new ui.Color.new(((reducedAlpha & 255) << 24 | dart.notNull(color.value) & 16777215) >>> 0);
  };
  _engine.adjustRectForDom = function adjustRectForDom(rect, paint) {
    let t$361752;
    if (rect == null) dart.nullFailed(I[283], 192, 34, "rect");
    if (paint == null) dart.nullFailed(I[283], 192, 57, "paint");
    let left = math.min(T$.double(), rect.left, rect.right);
    let top = math.min(T$.double(), rect.top, rect.bottom);
    let width = rect.width[$abs]();
    let height = rect.height[$abs]();
    let isStroke = paint.style == ui.PaintingStyle.stroke;
    let strokeWidth = (t$361752 = paint.strokeWidth, t$361752 == null ? 0.0 : t$361752);
    if (isStroke && dart.notNull(strokeWidth) > 0.0) {
      left = left - dart.notNull(strokeWidth) / 2.0;
      top = top - dart.notNull(strokeWidth) / 2.0;
      width = math.max(T$.double(), 0.0, width - dart.notNull(strokeWidth));
      height = math.max(T$.double(), 0.0, height - dart.notNull(strokeWidth));
    }
    if (left !== rect.left || top !== rect.top || width !== rect.width || height !== rect.height) {
      return new ui.Rect.fromLTWH(left, top, width, height);
    }
    return rect;
  };
  _engine.buildDrawRectElement = function buildDrawRectElement(rect, paint, tagName, transform) {
    let t$361752, t$361752$, t$361752$0, t$361752$1, t$361752$2;
    if (rect == null) dart.nullFailed(I[283], 219, 13, "rect");
    if (paint == null) dart.nullFailed(I[283], 219, 36, "paint");
    if (tagName == null) dart.nullFailed(I[283], 219, 50, "tagName");
    if (transform == null) dart.nullFailed(I[283], 219, 67, "transform");
    if (!(dart.notNull(rect.left) <= dart.notNull(rect.right))) dart.assertFailed(null, I[283], 220, 10, "rect.left <= rect.right");
    if (!(dart.notNull(rect.top) <= dart.notNull(rect.bottom))) dart.assertFailed(null, I[283], 221, 10, "rect.top <= rect.bottom");
    let rectangle = T$10.DomHTMLElement()[_as](_engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), tagName));
    if (!dart.test(dart.fn(() => {
      _engine['DomElementExtension|setAttribute'](rectangle, "flt-rect", dart.str(rect));
      _engine['DomElementExtension|setAttribute'](rectangle, "flt-paint", dart.str(paint));
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[283], 224, 10, "() {\n    rectangle.setAttribute('flt-rect', '$rect');\n    rectangle.setAttribute('flt-paint', '$paint');\n    return true;\n  }()");
    let effectiveTransform = null;
    let isStroke = paint.style == ui.PaintingStyle.stroke;
    let strokeWidth = (t$361752 = paint.strokeWidth, t$361752 == null ? 0.0 : t$361752);
    if (dart.test(transform.isIdentity())) {
      effectiveTransform = "translate(" + dart.str(rect.left) + "px, " + dart.str(rect.top) + "px)";
    } else {
      let translated = (t$361752$ = transform.clone(), (() => {
        t$361752$.translate(rect.left, rect.top);
        return t$361752$;
      })());
      effectiveTransform = _engine.matrix4ToCssTransform(translated);
    }
    let style = js_util.getProperty(T$9.DomCSSStyleDeclaration(), rectangle, "style");
    t$361752$0 = style;
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#position'](t$361752$0, "absolute");
      _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$361752$0, "0 0 0");
      _engine['DomCSSStyleDeclarationExtension|set#transform'](t$361752$0, effectiveTransform);
      return t$361752$0;
    })();
    let cssColor = _engine.colorValueToCssString(paint.color);
    if (paint.maskFilter != null) {
      let sigma = dart.nullCheck(paint.maskFilter).webOnlySigma;
      if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit && !isStroke) {
        _engine['DomCSSStyleDeclarationExtension|set#boxShadow'](style, "0px 0px " + dart.strSafe(dart.notNull(sigma) * 2.0) + "px " + dart.str(cssColor));
        cssColor = _engine['CssColor|toCssString'](_engine.blurColor(new ui.Color.new(paint.color), sigma));
      } else {
        _engine['DomCSSStyleDeclarationExtension|set#filter'](style, "blur(" + dart.str(sigma) + "px)");
      }
    }
    t$361752$1 = style;
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#width'](t$361752$1, dart.str(rect.width) + "px");
      _engine['DomCSSStyleDeclarationExtension|set#height'](t$361752$1, dart.str(rect.height) + "px");
      return t$361752$1;
    })();
    if (isStroke) {
      _engine['DomCSSStyleDeclarationExtension|set#border'](style, dart.str(_engine._borderStrokeToCssUnit(strokeWidth)) + " solid " + dart.str(cssColor));
    } else {
      t$361752$2 = style;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$361752$2, cssColor);
        _engine['DomCSSStyleDeclarationExtension|set#backgroundImage'](t$361752$2, _engine._getBackgroundImageCssValue(paint.shader, rect));
        return t$361752$2;
      })();
    }
    return rectangle;
  };
  _engine._getBackgroundImageCssValue = function _getBackgroundImageCssValue(shader, bounds) {
    if (bounds == null) dart.nullFailed(I[283], 273, 63, "bounds");
    let url = _engine._getBackgroundImageUrl(shader, bounds);
    return url !== "" ? "url('" + dart.str(url) + "'" : "";
  };
  _engine._getBackgroundImageUrl = function _getBackgroundImageUrl(shader, bounds) {
    let t$361752;
    if (bounds == null) dart.nullFailed(I[283], 278, 58, "bounds");
    if (shader != null) {
      if (T$9.EngineImageShader()[_is](shader)) {
        t$361752 = _engine['DomHTMLImageElementExtension|get#src'](shader.image.imgElement);
        return t$361752 == null ? "" : t$361752;
      }
      if (T$9.EngineGradient()[_is](shader)) {
        return T$.String()[_as](shader.createImageBitmap(bounds, 1.0, true));
      }
    }
    return "";
  };
  _engine.applyRRectBorderRadius = function applyRRectBorderRadius(style, rrect) {
    if (style == null) dart.nullFailed(I[283], 291, 52, "style");
    if (rrect == null) dart.nullFailed(I[283], 291, 68, "rrect");
    if (rrect.tlRadiusX == rrect.trRadiusX && rrect.tlRadiusX == rrect.blRadiusX && rrect.tlRadiusX == rrect.brRadiusX && rrect.tlRadiusX == rrect.tlRadiusY && rrect.trRadiusX == rrect.trRadiusY && rrect.blRadiusX == rrect.blRadiusY && rrect.brRadiusX == rrect.brRadiusY) {
      _engine['DomCSSStyleDeclarationExtension|set#borderRadius'](style, _engine._borderStrokeToCssUnit(rrect.blRadiusX));
      return;
    }
    _engine['DomCSSStyleDeclarationExtension|set#borderTopLeftRadius'](style, dart.str(_engine._borderStrokeToCssUnit(rrect.tlRadiusX)) + " " + dart.str(_engine._borderStrokeToCssUnit(rrect.tlRadiusY)));
    _engine['DomCSSStyleDeclarationExtension|set#borderTopRightRadius'](style, dart.str(_engine._borderStrokeToCssUnit(rrect.trRadiusX)) + " " + dart.str(_engine._borderStrokeToCssUnit(rrect.trRadiusY)));
    _engine['DomCSSStyleDeclarationExtension|set#borderBottomLeftRadius'](style, dart.str(_engine._borderStrokeToCssUnit(rrect.blRadiusX)) + " " + dart.str(_engine._borderStrokeToCssUnit(rrect.blRadiusY)));
    _engine['DomCSSStyleDeclarationExtension|set#borderBottomRightRadius'](style, dart.str(_engine._borderStrokeToCssUnit(rrect.brRadiusX)) + " " + dart.str(_engine._borderStrokeToCssUnit(rrect.brRadiusY)));
  };
  _engine._borderStrokeToCssUnit = function _borderStrokeToCssUnit(value) {
    if (value == null) dart.nullFailed(I[283], 313, 38, "value");
    if (value === 0) {
      value = 1.0;
    }
    return value[$toStringAsFixed](3) + "px";
  };
  _engine.pathToSvgElement = function pathToSvgElement(path, paint) {
    let t$361752, t$361752$;
    if (path == null) dart.nullFailed(I[283], 321, 44, "path");
    if (paint == null) dart.nullFailed(I[283], 321, 67, "paint");
    let root = (t$361752 = _engine.createSVGSVGElement(), (() => {
      _engine['DomElementExtension|setAttribute'](t$361752, "overflow", "visible");
      return t$361752;
    })());
    let svgPath = _engine.createSVGPathElement();
    root.append(svgPath);
    if (paint.style == ui.PaintingStyle.stroke || paint.style != ui.PaintingStyle.fill && paint.strokeWidth !== 0 && paint.strokeWidth != null) {
      _engine['DomElementExtension|setAttribute'](svgPath, "stroke", _engine.colorValueToCssString(paint.color));
      _engine['DomElementExtension|setAttribute'](svgPath, "stroke-width", dart.str((t$361752$ = paint.strokeWidth, t$361752$ == null ? 1.0 : t$361752$)));
      if (paint.strokeCap != null) {
        _engine['DomElementExtension|setAttribute'](svgPath, "stroke-linecap", dart.str(_engine.stringForStrokeCap(paint.strokeCap)));
      }
      _engine['DomElementExtension|setAttribute'](svgPath, "fill", "none");
    } else {
      _engine['DomElementExtension|setAttribute'](svgPath, "fill", _engine.colorValueToCssString(paint.color));
    }
    if (path.fillType == ui.PathFillType.evenOdd) {
      _engine['DomElementExtension|setAttribute'](svgPath, "fill-rule", "evenodd");
    }
    _engine['DomElementExtension|setAttribute'](svgPath, "d", _engine.pathToSvg(path.pathRef));
    return root;
  };
  _engine.chopCubicAtYExtrema = function chopCubicAtYExtrema(points, dest) {
    let t$361754, t$361753, t$361752, t$361754$, t$361753$, t$361752$;
    if (points == null) dart.nullFailed(I[291], 11, 37, "points");
    if (dest == null) dart.nullFailed(I[291], 11, 57, "dest");
    let y0 = points[$_get](1);
    let y1 = points[$_get](3);
    let y2 = points[$_get](5);
    let y3 = points[$_get](7);
    let quadRoots = _engine._findCubicExtrema(y0, y1, y2, y3);
    let roots = quadRoots.roots;
    if (dart.test(roots[$isEmpty])) {
      return 0;
    }
    _engine._chopCubicAt(roots, points, dest);
    let rootCount = roots[$length];
    if (dart.notNull(rootCount) > 0) {
      dest[$_set](5, (t$361752 = dest, t$361753 = 9, t$361754 = dest[$_get](7), t$361752[$_set](t$361753, t$361754), t$361754));
      if (rootCount === 2) {
        dest[$_set](11, (t$361752$ = dest, t$361753$ = 15, t$361754$ = dest[$_get](13), t$361752$[$_set](t$361753$, t$361754$), t$361754$));
      }
    }
    return rootCount;
  };
  _engine._findCubicExtrema = function _findCubicExtrema(a, b, c, d) {
    let t$361752;
    if (a == null) dart.nullFailed(I[291], 34, 36, "a");
    if (b == null) dart.nullFailed(I[291], 34, 46, "b");
    if (c == null) dart.nullFailed(I[291], 34, 56, "c");
    if (d == null) dart.nullFailed(I[291], 34, 66, "d");
    let A = dart.notNull(d) - dart.notNull(a) + 3 * (dart.notNull(b) - dart.notNull(c));
    let B = 2 * (dart.notNull(a) - dart.notNull(b) - dart.notNull(b) + dart.notNull(c));
    let C = dart.notNull(b) - dart.notNull(a);
    t$361752 = new _engine.QuadRoots.new();
    return (() => {
      t$361752.findRoots(A, B, C);
      return t$361752;
    })();
  };
  _engine._chopCubicAt = function _chopCubicAt(tValues, points, outPts) {
    let t$361754, t$361753, t$361752, t$361754$, t$361753$, t$361752$;
    if (tValues == null) dart.nullFailed(I[291], 44, 18, "tValues");
    if (points == null) dart.nullFailed(I[291], 44, 39, "points");
    if (outPts == null) dart.nullFailed(I[291], 44, 59, "outPts");
    if (!dart.test(dart.fn(() => {
      for (let i = 0; i < dart.notNull(tValues[$length]) - 1; i = i + 1) {
        let tValue = tValues[$_get](i);
        if (!(dart.notNull(tValue) > 0 && dart.notNull(tValue) < 1)) dart.assertFailed("Not expecting to chop curve at start, end points", I[291], 48, 14, "tValue > 0 && tValue < 1");
      }
      for (let i = 0; i < dart.notNull(tValues[$length]) - 1; i = i + 1) {
        let tValue = tValues[$_get](i);
        let nextTValue = tValues[$_get](i + 1);
        if (!(dart.notNull(nextTValue) > dart.notNull(tValue))) dart.assertFailed("Expecting t value to monotonically increase", I[291], 55, 11, "nextTValue > tValue");
      }
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[291], 45, 10, "() {\n    for (int i = 0; i < tValues.length - 1; i++) {\n      final double tValue = tValues[i];\n      assert(tValue > 0 && tValue < 1,\n          'Not expecting to chop curve at start, end points');\n    }\n    for (int i = 0; i < tValues.length - 1; i++) {\n      final double tValue = tValues[i];\n      final double nextTValue = tValues[i + 1];\n      assert(\n          nextTValue > tValue, 'Expecting t value to monotonically increase');\n    }\n    return true;\n  }()");
    let rootCount = tValues[$length];
    if (0 === rootCount) {
      for (let i = 0; i < 8; i = i + 1) {
        outPts[$_set](i, points[$_get](i));
      }
    } else {
      let t = tValues[$_get](0);
      let bufferPos = 0;
      for (let i = 0; i < dart.notNull(rootCount); i = i + 1) {
        _engine._chopCubicAtT(points, bufferPos, outPts, bufferPos, dart.nullCheck(t));
        if (i === dart.notNull(rootCount) - 1) {
          break;
        }
        bufferPos = bufferPos + 6;
        if ((t = _engine.validUnitDivide(dart.notNull(tValues[$_get](i + 1)) - dart.notNull(tValues[$_get](i)), 1.0 - dart.notNull(tValues[$_get](i)))) == null) {
          outPts[$_set](bufferPos + 4, (t$361752$ = outPts, t$361753$ = bufferPos + 5, t$361754$ = (t$361752 = outPts, t$361753 = bufferPos + 6, t$361754 = points[$_get](bufferPos + 3), t$361752[$_set](t$361753, t$361754), t$361754), t$361752$[$_set](t$361753$, t$361754$), t$361754$));
          break;
        }
      }
    }
  };
  _engine._chopCubicAtT = function _chopCubicAtT(points, bufferPos, outPts, outIndex, t) {
    let t$361752, t$361752$, t$361752$0, t$361752$1, t$361752$2, t$361752$3, t$361752$4, t$361752$5, t$361752$6, t$361752$7, t$361752$8, t$361752$9, t$361752$10, t$361752$11;
    if (points == null) dart.nullFailed(I[291], 92, 32, "points");
    if (bufferPos == null) dart.nullFailed(I[291], 92, 44, "bufferPos");
    if (outPts == null) dart.nullFailed(I[291], 92, 67, "outPts");
    if (outIndex == null) dart.nullFailed(I[291], 93, 9, "outIndex");
    if (t == null) dart.nullFailed(I[291], 93, 26, "t");
    if (!(dart.notNull(t) > 0 && dart.notNull(t) < 1)) dart.assertFailed(null, I[291], 94, 10, "t > 0 && t < 1");
    let p3y = points[$_get](dart.notNull(bufferPos) + 7);
    let p0x = points[$_get](dart.notNull(bufferPos) + 0);
    let p0y = points[$_get](dart.notNull(bufferPos) + 1);
    let p1x = points[$_get](dart.notNull(bufferPos) + 2);
    let p1y = points[$_get](dart.notNull(bufferPos) + 3);
    let p2x = points[$_get](dart.notNull(bufferPos) + 4);
    let p2y = points[$_get](dart.notNull(bufferPos) + 5);
    let p3x = points[$_get](dart.notNull(bufferPos) + 6);
    let ab1x = _engine.interpolate(p0x, p1x, t);
    let ab1y = _engine.interpolate(p0y, p1y, t);
    let bc1x = _engine.interpolate(p1x, p2x, t);
    let bc1y = _engine.interpolate(p1y, p2y, t);
    let cd1x = _engine.interpolate(p2x, p3x, t);
    let cd1y = _engine.interpolate(p2y, p3y, t);
    let abc1x = _engine.interpolate(ab1x, bc1x, t);
    let abc1y = _engine.interpolate(ab1y, bc1y, t);
    let bcd1x = _engine.interpolate(bc1x, cd1x, t);
    let bcd1y = _engine.interpolate(bc1y, cd1y, t);
    let abcd1x = _engine.interpolate(abc1x, bcd1x, t);
    let abcd1y = _engine.interpolate(abc1y, bcd1y, t);
    outPts[$_set]((t$361752 = outIndex, outIndex = dart.notNull(t$361752) + 1, t$361752), p0x);
    outPts[$_set]((t$361752$ = outIndex, outIndex = dart.notNull(t$361752$) + 1, t$361752$), p0y);
    outPts[$_set]((t$361752$0 = outIndex, outIndex = dart.notNull(t$361752$0) + 1, t$361752$0), ab1x);
    outPts[$_set]((t$361752$1 = outIndex, outIndex = dart.notNull(t$361752$1) + 1, t$361752$1), ab1y);
    outPts[$_set]((t$361752$2 = outIndex, outIndex = dart.notNull(t$361752$2) + 1, t$361752$2), abc1x);
    outPts[$_set]((t$361752$3 = outIndex, outIndex = dart.notNull(t$361752$3) + 1, t$361752$3), abc1y);
    outPts[$_set]((t$361752$4 = outIndex, outIndex = dart.notNull(t$361752$4) + 1, t$361752$4), abcd1x);
    outPts[$_set]((t$361752$5 = outIndex, outIndex = dart.notNull(t$361752$5) + 1, t$361752$5), abcd1y);
    outPts[$_set]((t$361752$6 = outIndex, outIndex = dart.notNull(t$361752$6) + 1, t$361752$6), bcd1x);
    outPts[$_set]((t$361752$7 = outIndex, outIndex = dart.notNull(t$361752$7) + 1, t$361752$7), bcd1y);
    outPts[$_set]((t$361752$8 = outIndex, outIndex = dart.notNull(t$361752$8) + 1, t$361752$8), cd1x);
    outPts[$_set]((t$361752$9 = outIndex, outIndex = dart.notNull(t$361752$9) + 1, t$361752$9), cd1y);
    outPts[$_set]((t$361752$10 = outIndex, outIndex = dart.notNull(t$361752$10) + 1, t$361752$10), p3x);
    outPts[$_set]((t$361752$11 = outIndex, outIndex = dart.notNull(t$361752$11) + 1, t$361752$11), p3y);
  };
  _engine.chopMonoAtY = function chopMonoAtY(buffer, bufferStartPos, y) {
    if (buffer == null) dart.nullFailed(I[291], 139, 33, "buffer");
    if (bufferStartPos == null) dart.nullFailed(I[291], 139, 45, "bufferStartPos");
    if (y == null) dart.nullFailed(I[291], 139, 68, "y");
    let ycrv0 = dart.notNull(buffer[$_get](1 + dart.notNull(bufferStartPos))) - dart.notNull(y);
    let ycrv1 = dart.notNull(buffer[$_get](3 + dart.notNull(bufferStartPos))) - dart.notNull(y);
    let ycrv2 = dart.notNull(buffer[$_get](5 + dart.notNull(bufferStartPos))) - dart.notNull(y);
    let ycrv3 = dart.notNull(buffer[$_get](7 + dart.notNull(bufferStartPos))) - dart.notNull(y);
    let tNeg = null;
    let tPos = null;
    if (ycrv0 < 0) {
      if (ycrv3 < 0) {
        return null;
      }
      tNeg = 0.0;
      tPos = 1.0;
    } else if (ycrv0 > 0) {
      tNeg = 1.0;
      tPos = 0.0;
    } else {
      return 0.0;
    }
    do {
      let tMid = (dart.notNull(tPos) + dart.notNull(tNeg)) / 2.0;
      let y01 = ycrv0 + (ycrv1 - ycrv0) * tMid;
      let y12 = ycrv1 + (ycrv2 - ycrv1) * tMid;
      let y23 = ycrv2 + (ycrv3 - ycrv2) * tMid;
      let y012 = y01 + (y12 - y01) * tMid;
      let y123 = y12 + (y23 - y12) * tMid;
      let y0123 = y012 + (y123 - y012) * tMid;
      if (y0123 === 0) {
        return tMid;
      }
      if (y0123 < 0) {
        tNeg = tMid;
      } else {
        tPos = tMid;
      }
    } while ((dart.notNull(tPos) - dart.notNull(tNeg))[$abs]() > 0.0000152587890625);
    return (dart.notNull(tNeg) + dart.notNull(tPos)) / 2;
  };
  _engine.evalCubicPts = function evalCubicPts(c0, c1, c2, c3, t) {
    if (c0 == null) dart.nullFailed(I[291], 185, 28, "c0");
    if (c1 == null) dart.nullFailed(I[291], 185, 39, "c1");
    if (c2 == null) dart.nullFailed(I[291], 185, 50, "c2");
    if (c3 == null) dart.nullFailed(I[291], 185, 61, "c3");
    if (t == null) dart.nullFailed(I[291], 185, 72, "t");
    let A = dart.notNull(c3) + 3 * (dart.notNull(c1) - dart.notNull(c2)) - dart.notNull(c0);
    let B = 3 * (dart.notNull(c2) - dart.notNull(c1) - dart.notNull(c1) + dart.notNull(c0));
    let C = 3 * (dart.notNull(c1) - dart.notNull(c0));
    let D = c0;
    return _engine.polyEval4(A, B, C, D, t);
  };
  _engine.chopCubicBetweenT = function chopCubicBetweenT(points, startT, stopT, buffer) {
    if (points == null) dart.nullFailed(I[291], 343, 18, "points");
    if (startT == null) dart.nullFailed(I[291], 343, 33, "startT");
    if (stopT == null) dart.nullFailed(I[291], 343, 48, "stopT");
    if (buffer == null) dart.nullFailed(I[291], 343, 67, "buffer");
    if (!(startT !== 0 || stopT !== 0)) dart.assertFailed(null, I[291], 344, 10, "startT != 0 || stopT != 0");
    let p3y = points[$_get](7);
    let p0x = points[$_get](0);
    let p0y = points[$_get](1);
    let p1x = points[$_get](2);
    let p1y = points[$_get](3);
    let p2x = points[$_get](4);
    let p2y = points[$_get](5);
    let p3x = points[$_get](6);
    let chopStart = startT !== 0;
    let t = chopStart ? startT : stopT;
    let ab1x = _engine.interpolate(p0x, p1x, t);
    let ab1y = _engine.interpolate(p0y, p1y, t);
    let bc1x = _engine.interpolate(p1x, p2x, t);
    let bc1y = _engine.interpolate(p1y, p2y, t);
    let cd1x = _engine.interpolate(p2x, p3x, t);
    let cd1y = _engine.interpolate(p2y, p3y, t);
    let abc1x = _engine.interpolate(ab1x, bc1x, t);
    let abc1y = _engine.interpolate(ab1y, bc1y, t);
    let bcd1x = _engine.interpolate(bc1x, cd1x, t);
    let bcd1y = _engine.interpolate(bc1y, cd1y, t);
    let abcd1x = _engine.interpolate(abc1x, bcd1x, t);
    let abcd1y = _engine.interpolate(abc1y, bcd1y, t);
    if (!chopStart) {
      buffer[$_set](0, p0x);
      buffer[$_set](1, p0y);
      buffer[$_set](2, ab1x);
      buffer[$_set](3, ab1y);
      buffer[$_set](4, abc1x);
      buffer[$_set](5, abc1y);
      buffer[$_set](6, abcd1x);
      buffer[$_set](7, abcd1y);
      return;
    }
    if (stopT === 1) {
      buffer[$_set](0, abcd1x);
      buffer[$_set](1, abcd1y);
      buffer[$_set](2, bcd1x);
      buffer[$_set](3, bcd1y);
      buffer[$_set](4, cd1x);
      buffer[$_set](5, cd1y);
      buffer[$_set](6, p3x);
      buffer[$_set](7, p3y);
      return;
    }
    let endT = (dart.notNull(stopT) - dart.notNull(startT)) / (1 - dart.notNull(startT));
    let ab2x = _engine.interpolate(abcd1x, bcd1x, endT);
    let ab2y = _engine.interpolate(abcd1y, bcd1y, endT);
    let bc2x = _engine.interpolate(bcd1x, cd1x, endT);
    let bc2y = _engine.interpolate(bcd1y, cd1y, endT);
    let cd2x = _engine.interpolate(cd1x, p3x, endT);
    let cd2y = _engine.interpolate(cd1y, p3y, endT);
    let abc2x = _engine.interpolate(ab2x, bc2x, endT);
    let abc2y = _engine.interpolate(ab2y, bc2y, endT);
    let bcd2x = _engine.interpolate(bc2x, cd2x, endT);
    let bcd2y = _engine.interpolate(bc2y, cd2y, endT);
    let abcd2x = _engine.interpolate(abc2x, bcd2x, endT);
    let abcd2y = _engine.interpolate(abc2y, bcd2y, endT);
    buffer[$_set](0, abcd1x);
    buffer[$_set](1, abcd1y);
    buffer[$_set](2, ab2x);
    buffer[$_set](3, ab2y);
    buffer[$_set](4, abc2x);
    buffer[$_set](5, abc2y);
    buffer[$_set](6, abcd2x);
    buffer[$_set](7, abcd2y);
  };
  _engine._arcIsLonePoint = function _arcIsLonePoint(oval, startAngle, sweepAngle) {
    if (oval == null) dart.nullFailed(I[292], 1589, 36, "oval");
    if (startAngle == null) dart.nullFailed(I[292], 1589, 49, "startAngle");
    if (sweepAngle == null) dart.nullFailed(I[292], 1589, 68, "sweepAngle");
    if (0 === sweepAngle && (0 === startAngle || 360.0 === startAngle)) {
      return new ui.Offset.new(oval.right, oval.center.dy);
    }
    return null;
  };
  _engine._computeMinScale = function _computeMinScale(radius1, radius2, limit, scale) {
    if (radius1 == null) dart.nullFailed(I[292], 1602, 12, "radius1");
    if (radius2 == null) dart.nullFailed(I[292], 1602, 28, "radius2");
    if (limit == null) dart.nullFailed(I[292], 1602, 44, "limit");
    if (scale == null) dart.nullFailed(I[292], 1602, 58, "scale");
    let totalRadius = dart.notNull(radius1) + dart.notNull(radius2);
    if (totalRadius <= dart.notNull(limit)) {
      return scale;
    }
    return math.min(T$.double(), dart.notNull(limit) / totalRadius, scale);
  };
  _engine._isSimple2dTransform = function _isSimple2dTransform(m) {
    if (m == null) dart.nullFailed(I[292], 1611, 39, "m");
    return m[$_get](15) === 1.0 && m[$_get](14) === 0.0 && m[$_get](11) === 0.0 && m[$_get](10) === 1.0 && m[$_get](9) === 0.0 && m[$_get](8) === 0.0 && m[$_get](7) === 0.0 && m[$_get](6) === 0.0 && m[$_get](3) === 0.0 && m[$_get](2) === 0.0;
  };
  _engine._normalizeSlope = function _normalizeSlope(dx, dy) {
    if (dx == null) dart.nullFailed(I[294], 593, 34, "dx");
    if (dy == null) dart.nullFailed(I[294], 593, 45, "dy");
    let length = math.sqrt(dart.notNull(dx) * dart.notNull(dx) + dart.notNull(dy) * dart.notNull(dy));
    return length < 1e-9 ? ui.Offset.zero : new ui.Offset.new(dart.notNull(dx) / length, dart.notNull(dy) / length);
  };
  _engine._chopQuadBetweenT = function _chopQuadBetweenT(points, startT, stopT, buffer) {
    if (points == null) dart.nullFailed(I[294], 708, 18, "points");
    if (startT == null) dart.nullFailed(I[294], 708, 33, "startT");
    if (stopT == null) dart.nullFailed(I[294], 708, 48, "stopT");
    if (buffer == null) dart.nullFailed(I[294], 708, 67, "buffer");
    if (!(startT !== 0 || stopT !== 0)) dart.assertFailed(null, I[294], 709, 10, "startT != 0 || stopT != 0");
    let p2y = points[$_get](5);
    let p0x = points[$_get](0);
    let p0y = points[$_get](1);
    let p1x = points[$_get](2);
    let p1y = points[$_get](3);
    let p2x = points[$_get](4);
    let chopStart = startT !== 0;
    let t = chopStart ? startT : stopT;
    let ab1x = _engine.interpolate(p0x, p1x, t);
    let ab1y = _engine.interpolate(p0y, p1y, t);
    let bc1x = _engine.interpolate(p1x, p2x, t);
    let bc1y = _engine.interpolate(p1y, p2y, t);
    let abc1x = _engine.interpolate(ab1x, bc1x, t);
    let abc1y = _engine.interpolate(ab1y, bc1y, t);
    if (!chopStart) {
      buffer[$_set](0, p0x);
      buffer[$_set](1, p0y);
      buffer[$_set](2, ab1x);
      buffer[$_set](3, ab1y);
      buffer[$_set](4, abc1x);
      buffer[$_set](5, abc1y);
      return;
    }
    if (stopT === 1) {
      buffer[$_set](0, abc1x);
      buffer[$_set](1, abc1y);
      buffer[$_set](2, bc1x);
      buffer[$_set](3, bc1y);
      buffer[$_set](4, p2x);
      buffer[$_set](5, p2y);
      return;
    }
    let endT = (dart.notNull(stopT) - dart.notNull(startT)) / (1 - dart.notNull(startT));
    let ab2x = _engine.interpolate(abc1x, bc1x, endT);
    let ab2y = _engine.interpolate(abc1y, bc1y, endT);
    let bc2x = _engine.interpolate(bc1x, p2x, endT);
    let bc2y = _engine.interpolate(bc1y, p2y, endT);
    let abc2x = _engine.interpolate(ab2x, bc2x, endT);
    let abc2y = _engine.interpolate(ab2y, bc2y, endT);
    buffer[$_set](0, abc1x);
    buffer[$_set](1, abc1y);
    buffer[$_set](2, ab2x);
    buffer[$_set](3, ab2y);
    buffer[$_set](4, abc2x);
    buffer[$_set](5, abc2y);
  };
  _engine.pathToSvg = function pathToSvg(pathRef, opts) {
    if (pathRef == null) dart.nullFailed(I[396], 11, 26, "pathRef");
    let offsetX = opts && 'offsetX' in opts ? opts.offsetX : 0;
    if (offsetX == null) dart.nullFailed(I[396], 11, 43, "offsetX");
    let offsetY = opts && 'offsetY' in opts ? opts.offsetY : 0;
    if (offsetY == null) dart.nullFailed(I[396], 11, 63, "offsetY");
    let buffer = new core.StringBuffer.new();
    let iter = new _engine.PathRefIterator.new(pathRef);
    let verb = 0;
    let outPts = _native_typed_data.NativeFloat32List.new(8);
    while ((verb = iter.next(outPts)) !== 6) {
      switch (verb) {
        case 0:
          {
            buffer.write("M " + dart.strSafe(dart.notNull(outPts[$_get](0)) + dart.notNull(offsetX)) + " " + dart.strSafe(dart.notNull(outPts[$_get](1)) + dart.notNull(offsetY)));
            break;
          }
        case 1:
          {
            buffer.write("L " + dart.strSafe(dart.notNull(outPts[$_get](2)) + dart.notNull(offsetX)) + " " + dart.strSafe(dart.notNull(outPts[$_get](3)) + dart.notNull(offsetY)));
            break;
          }
        case 4:
          {
            buffer.write("C " + dart.strSafe(dart.notNull(outPts[$_get](2)) + dart.notNull(offsetX)) + " " + dart.strSafe(dart.notNull(outPts[$_get](3)) + dart.notNull(offsetY)) + " " + dart.strSafe(dart.notNull(outPts[$_get](4)) + dart.notNull(offsetX)) + " " + dart.strSafe(dart.notNull(outPts[$_get](5)) + dart.notNull(offsetY)) + " " + dart.strSafe(dart.notNull(outPts[$_get](6)) + dart.notNull(offsetX)) + " " + dart.strSafe(dart.notNull(outPts[$_get](7)) + dart.notNull(offsetY)));
            break;
          }
        case 2:
          {
            buffer.write("Q " + dart.strSafe(dart.notNull(outPts[$_get](2)) + dart.notNull(offsetX)) + " " + dart.strSafe(dart.notNull(outPts[$_get](3)) + dart.notNull(offsetY)) + " " + dart.strSafe(dart.notNull(outPts[$_get](4)) + dart.notNull(offsetX)) + " " + dart.strSafe(dart.notNull(outPts[$_get](5)) + dart.notNull(offsetY)));
            break;
          }
        case 3:
          {
            let w = iter.conicWeight;
            let conic = new _engine.Conic.new(outPts[$_get](0), outPts[$_get](1), outPts[$_get](2), outPts[$_get](3), outPts[$_get](4), outPts[$_get](5), w);
            let points = conic.toQuads();
            let len = points[$length];
            for (let i = 1; i < dart.notNull(len); i = i + 2) {
              let p1x = points[$_get](i).dx;
              let p1y = points[$_get](i).dy;
              let p2x = points[$_get](i + 1).dx;
              let p2y = points[$_get](i + 1).dy;
              buffer.write("Q " + dart.strSafe(dart.notNull(p1x) + dart.notNull(offsetX)) + " " + dart.strSafe(dart.notNull(p1y) + dart.notNull(offsetY)) + " " + dart.strSafe(dart.notNull(p2x) + dart.notNull(offsetX)) + " " + dart.strSafe(dart.notNull(p2y) + dart.notNull(offsetY)));
            }
            break;
          }
        case 5:
          {
            buffer.write("Z");
            break;
          }
        default:
          {
            dart.throw(new core.UnimplementedError.new("Unknown path verb " + dart.str(verb)));
          }
      }
    }
    return dart.toString(buffer);
  };
  _engine.validUnitDivide = function validUnitDivide(numer, denom) {
    if (numer == null) dart.nullFailed(I[296], 167, 32, "numer");
    if (denom == null) dart.nullFailed(I[296], 167, 46, "denom");
    if (dart.notNull(numer) < 0) {
      numer = -dart.notNull(numer);
      denom = -dart.notNull(denom);
    }
    if (denom === 0 || numer === 0 || dart.notNull(numer) >= dart.notNull(denom)) {
      return null;
    }
    let r = dart.notNull(numer) / dart.notNull(denom);
    if (r[$isNaN]) {
      return null;
    }
    if (r === 0) {
      return null;
    }
    return r;
  };
  _engine.isRRectOval = function isRRectOval(rrect) {
    if (rrect == null) dart.nullFailed(I[296], 186, 27, "rrect");
    if (dart.notNull(rrect.tlRadiusX) + dart.notNull(rrect.trRadiusX) !== rrect.width) {
      return false;
    }
    if (dart.notNull(rrect.tlRadiusY) + dart.notNull(rrect.trRadiusY) !== rrect.height) {
      return false;
    }
    if (rrect.tlRadiusX != rrect.blRadiusX || rrect.trRadiusX != rrect.brRadiusX || rrect.tlRadiusY != rrect.blRadiusY || rrect.trRadiusY != rrect.brRadiusY) {
      return false;
    }
    return true;
  };
  _engine.polyEval = function polyEval(A, B, C, t) {
    if (A == null) dart.nullFailed(I[296], 203, 24, "A");
    if (B == null) dart.nullFailed(I[296], 203, 34, "B");
    if (C == null) dart.nullFailed(I[296], 203, 44, "C");
    if (t == null) dart.nullFailed(I[296], 203, 54, "t");
    return (dart.notNull(A) * dart.notNull(t) + dart.notNull(B)) * dart.notNull(t) + dart.notNull(C);
  };
  _engine.polyEval4 = function polyEval4(A, B, C, D, t) {
    if (A == null) dart.nullFailed(I[296], 206, 25, "A");
    if (B == null) dart.nullFailed(I[296], 206, 35, "B");
    if (C == null) dart.nullFailed(I[296], 206, 45, "C");
    if (D == null) dart.nullFailed(I[296], 206, 55, "D");
    if (t == null) dart.nullFailed(I[296], 206, 65, "t");
    return ((dart.notNull(A) * dart.notNull(t) + dart.notNull(B)) * dart.notNull(t) + dart.notNull(C)) * dart.notNull(t) + dart.notNull(D);
  };
  _engine.interpolate = function interpolate(startValue, endValue, t) {
    if (startValue == null) dart.nullFailed(I[296], 211, 27, "startValue");
    if (endValue == null) dart.nullFailed(I[296], 211, 46, "endValue");
    if (t == null) dart.nullFailed(I[296], 211, 63, "t");
    return dart.notNull(startValue) * (1 - dart.notNull(t)) + dart.notNull(endValue) * dart.notNull(t);
  };
  _engine.dotProduct = function dotProduct(x0, y0, x1, y1) {
    if (x0 == null) dart.nullFailed(I[296], 214, 26, "x0");
    if (y0 == null) dart.nullFailed(I[296], 214, 37, "y0");
    if (x1 == null) dart.nullFailed(I[296], 214, 48, "x1");
    if (y1 == null) dart.nullFailed(I[296], 214, 59, "y1");
    return dart.notNull(x0) * dart.notNull(x1) + dart.notNull(y0) * dart.notNull(y1);
  };
  _engine.lengthSquaredOffset = function lengthSquaredOffset(offset) {
    if (offset == null) dart.nullFailed(I[296], 416, 38, "offset");
    let dx = offset.dx;
    let dy = offset.dy;
    return dart.notNull(dx) * dart.notNull(dx) + dart.notNull(dy) * dart.notNull(dy);
  };
  _engine.lengthSquared = function lengthSquared(dx, dy) {
    if (dx == null) dart.nullFailed(I[296], 422, 29, "dx");
    if (dy == null) dart.nullFailed(I[296], 422, 40, "dy");
    return dart.notNull(dx) * dart.notNull(dx) + dart.notNull(dy) * dart.notNull(dy);
  };
  _engine.tangentLine = function tangentLine(pts, x, y, tangents) {
    if (pts == null) dart.nullFailed(I[397], 11, 17, "pts");
    if (x == null) dart.nullFailed(I[397], 11, 29, "x");
    if (y == null) dart.nullFailed(I[397], 11, 39, "y");
    if (tangents == null) dart.nullFailed(I[397], 11, 58, "tangents");
    let y0 = pts[$_get](1);
    let y1 = pts[$_get](3);
    if (!dart.test(_engine.SPath.between(y0, y, y1))) {
      return;
    }
    let x0 = pts[$_get](0);
    let x1 = pts[$_get](2);
    if (!dart.test(_engine.SPath.between(x0, x, x1))) {
      return;
    }
    let dx = dart.notNull(x1) - dart.notNull(x0);
    let dy = dart.notNull(y1) - dart.notNull(y0);
    if (!dart.test(_engine.SPath.nearlyEqual((dart.notNull(x) - dart.notNull(x0)) * dy, dx * (dart.notNull(y) - dart.notNull(y0))))) {
      return;
    }
    tangents[$add](new ui.Offset.new(dx, dy));
  };
  _engine.tangentQuad = function tangentQuad(pts, x, y, tangents) {
    if (pts == null) dart.nullFailed(I[397], 32, 17, "pts");
    if (x == null) dart.nullFailed(I[397], 32, 29, "x");
    if (y == null) dart.nullFailed(I[397], 32, 39, "y");
    if (tangents == null) dart.nullFailed(I[397], 32, 58, "tangents");
    let y0 = pts[$_get](1);
    let y1 = pts[$_get](3);
    let y2 = pts[$_get](5);
    if (!dart.test(_engine.SPath.between(y0, y, y1)) && !dart.test(_engine.SPath.between(y1, y, y2))) {
      return;
    }
    let x0 = pts[$_get](0);
    let x1 = pts[$_get](2);
    let x2 = pts[$_get](4);
    if (!dart.test(_engine.SPath.between(x0, x, x1)) && !dart.test(_engine.SPath.between(x1, x, x2))) {
      return;
    }
    let roots = new _engine.QuadRoots.new();
    let n = roots.findRoots(dart.notNull(y0) - 2 * dart.notNull(y1) + dart.notNull(y2), 2 * (dart.notNull(y1) - dart.notNull(y0)), dart.notNull(y0) - dart.notNull(y));
    for (let index = 0; index < dart.notNull(n); index = index + 1) {
      let t = index === 0 ? dart.nullCheck(roots.root0) : dart.nullCheck(roots.root1);
      let C = x0;
      let A = dart.notNull(x2) - 2 * dart.notNull(x1) + dart.notNull(C);
      let B = 2 * (dart.notNull(x1) - dart.notNull(C));
      let xt = _engine.polyEval(A, B, C, t);
      if (!dart.test(_engine.SPath.nearlyEqual(x, xt))) {
        continue;
      }
      tangents[$add](_engine._evalQuadTangentAt(x0, y0, x1, y1, x2, y2, t));
    }
  };
  _engine._evalQuadTangentAt = function _evalQuadTangentAt(x0, y0, x1, y1, x2, y2, t) {
    if (x0 == null) dart.nullFailed(I[397], 60, 37, "x0");
    if (y0 == null) dart.nullFailed(I[397], 60, 48, "y0");
    if (x1 == null) dart.nullFailed(I[397], 60, 59, "x1");
    if (y1 == null) dart.nullFailed(I[397], 60, 70, "y1");
    if (x2 == null) dart.nullFailed(I[397], 61, 12, "x2");
    if (y2 == null) dart.nullFailed(I[397], 61, 23, "y2");
    if (t == null) dart.nullFailed(I[397], 61, 34, "t");
    if (t === 0 && x0 == x1 && y0 == y1 || t === 1 && x1 == x2 && y1 == y2) {
      return new ui.Offset.new(dart.notNull(x2) - dart.notNull(x0), dart.notNull(y2) - dart.notNull(y0));
    }
    if (!(dart.notNull(t) >= 0 && dart.notNull(t) <= 1.0)) dart.assertFailed(null, I[397], 70, 10, "t >= 0 && t <= 1.0");
    let bx = dart.notNull(x1) - dart.notNull(x0);
    let by = dart.notNull(y1) - dart.notNull(y0);
    let ax = dart.notNull(x2) - dart.notNull(x1) - bx;
    let ay = dart.notNull(y2) - dart.notNull(y1) - by;
    let tx = ax * dart.notNull(t) + bx;
    let ty = ay * dart.notNull(t) + by;
    return new ui.Offset.new(tx * 2, ty * 2);
  };
  _engine.tangentConic = function tangentConic(pts, x, y, weight, tangents) {
    if (pts == null) dart.nullFailed(I[397], 82, 31, "pts");
    if (x == null) dart.nullFailed(I[397], 82, 43, "x");
    if (y == null) dart.nullFailed(I[397], 82, 53, "y");
    if (weight == null) dart.nullFailed(I[397], 82, 63, "weight");
    if (tangents == null) dart.nullFailed(I[397], 83, 21, "tangents");
    let y0 = pts[$_get](1);
    let y1 = pts[$_get](3);
    let y2 = pts[$_get](5);
    if (!dart.test(_engine.SPath.between(y0, y, y1)) && !dart.test(_engine.SPath.between(y1, y, y2))) {
      return;
    }
    let x0 = pts[$_get](0);
    let x1 = pts[$_get](2);
    let x2 = pts[$_get](4);
    if (!dart.test(_engine.SPath.between(x0, x, x1)) && !dart.test(_engine.SPath.between(x1, x, x2))) {
      return;
    }
    let A = y2;
    let B = dart.notNull(y1) * dart.notNull(weight) - dart.notNull(y) * dart.notNull(weight) + dart.notNull(y);
    let C = y0;
    A = dart.notNull(A) + (dart.notNull(C) - 2 * B);
    B = B - dart.notNull(C);
    C = dart.notNull(C) - dart.notNull(y);
    let quadRoots = new _engine.QuadRoots.new();
    let n = quadRoots.findRoots(A, 2 * B, C);
    for (let index = 0; index < dart.notNull(n); index = index + 1) {
      let t = index === 0 ? dart.nullCheck(quadRoots.root0) : dart.nullCheck(quadRoots.root1);
      let xt = dart.notNull(_engine.Conic.evalNumerator(x0, x1, x2, weight, t)) / dart.notNull(_engine.Conic.evalDenominator(weight, t));
      if (!dart.test(_engine.SPath.nearlyEqual(x, xt))) {
        continue;
      }
      let conic = new _engine.Conic.new(x0, y0, x1, y1, x2, y2, weight);
      tangents[$add](conic.evalTangentAt(t));
    }
  };
  _engine.tangentCubic = function tangentCubic(pts, x, y, tangents) {
    if (pts == null) dart.nullFailed(I[397], 121, 17, "pts");
    if (x == null) dart.nullFailed(I[397], 121, 29, "x");
    if (y == null) dart.nullFailed(I[397], 121, 39, "y");
    if (tangents == null) dart.nullFailed(I[397], 121, 58, "tangents");
    let y3 = pts[$_get](7);
    let y0 = pts[$_get](1);
    let y1 = pts[$_get](3);
    let y2 = pts[$_get](5);
    if (!dart.test(_engine.SPath.between(y0, y, y1)) && !dart.test(_engine.SPath.between(y1, y, y2)) && !dart.test(_engine.SPath.between(y2, y, y3))) {
      return;
    }
    let x0 = pts[$_get](0);
    let x1 = pts[$_get](2);
    let x2 = pts[$_get](4);
    let x3 = pts[$_get](6);
    if (!dart.test(_engine.SPath.between(x0, x, x1)) && !dart.test(_engine.SPath.between(x1, x, x2)) && !dart.test(_engine.SPath.between(x2, x, x3))) {
      return;
    }
    let dst = _native_typed_data.NativeFloat32List.new(20);
    let n = _engine.chopCubicAtYExtrema(pts, dst);
    for (let i = 0; i <= dart.notNull(n); i = i + 1) {
      let bufferPos = i * 6;
      let t = _engine.chopMonoAtY(dst, i * 6, y);
      if (t == null) {
        continue;
      }
      let xt = _engine.evalCubicPts(dst[$_get](bufferPos), dst[$_get](bufferPos + 2), dst[$_get](bufferPos + 4), dst[$_get](bufferPos + 6), t);
      if (!dart.test(_engine.SPath.nearlyEqual(x, xt))) {
        continue;
      }
      tangents[$add](_engine._evalCubicTangentAt(dst, bufferPos, t));
    }
  };
  _engine._evalCubicTangentAt = function _evalCubicTangentAt(points, bufferPos, t) {
    if (points == null) dart.nullFailed(I[397], 157, 43, "points");
    if (bufferPos == null) dart.nullFailed(I[397], 157, 55, "bufferPos");
    if (t == null) dart.nullFailed(I[397], 157, 73, "t");
    if (!(dart.notNull(t) >= 0 && dart.notNull(t) <= 1.0)) dart.assertFailed(null, I[397], 158, 10, "t >= 0 && t <= 1.0");
    let y3 = points[$_get](7 + dart.notNull(bufferPos));
    let y0 = points[$_get](1 + dart.notNull(bufferPos));
    let y1 = points[$_get](3 + dart.notNull(bufferPos));
    let y2 = points[$_get](5 + dart.notNull(bufferPos));
    let x0 = points[$_get](0 + dart.notNull(bufferPos));
    let x1 = points[$_get](2 + dart.notNull(bufferPos));
    let x2 = points[$_get](4 + dart.notNull(bufferPos));
    let x3 = points[$_get](6 + dart.notNull(bufferPos));
    if (t === 0 && x0 == x1 && y0 == y1 || t === 1 && x2 == x3 && y2 == y3) {
      let dx = null;
      let dy = null;
      if (t === 0) {
        dx = dart.notNull(x2) - dart.notNull(x0);
        dy = dart.notNull(y2) - dart.notNull(y0);
      } else {
        dx = dart.notNull(x3) - dart.notNull(x1);
        dy = dart.notNull(y3) - dart.notNull(y1);
      }
      if (dx === 0 && dy === 0) {
        dx = dart.notNull(x3) - dart.notNull(x0);
        dy = dart.notNull(y3) - dart.notNull(y0);
      }
      return new ui.Offset.new(dx, dy);
    } else {
      return _engine._evalCubicDerivative(x0, y0, x1, y1, x2, y2, x3, y3, t);
    }
  };
  _engine._evalCubicDerivative = function _evalCubicDerivative(x0, y0, x1, y1, x2, y2, x3, y3, t) {
    if (x0 == null) dart.nullFailed(I[397], 189, 39, "x0");
    if (y0 == null) dart.nullFailed(I[397], 189, 50, "y0");
    if (x1 == null) dart.nullFailed(I[397], 189, 61, "x1");
    if (y1 == null) dart.nullFailed(I[397], 189, 72, "y1");
    if (x2 == null) dart.nullFailed(I[397], 190, 12, "x2");
    if (y2 == null) dart.nullFailed(I[397], 190, 23, "y2");
    if (x3 == null) dart.nullFailed(I[397], 190, 34, "x3");
    if (y3 == null) dart.nullFailed(I[397], 190, 45, "y3");
    if (t == null) dart.nullFailed(I[397], 190, 56, "t");
    let coeff = new _engine.SkQuadCoefficients.new(dart.notNull(x3) + 3 * (dart.notNull(x1) - dart.notNull(x2)) - dart.notNull(x0), dart.notNull(y3) + 3 * (dart.notNull(y1) - dart.notNull(y2)) - dart.notNull(y0), 2 * (dart.notNull(x2) - 2 * dart.notNull(x1) + dart.notNull(x0)), 2 * (dart.notNull(y2) - 2 * dart.notNull(y1) + dart.notNull(y0)), dart.notNull(x1) - dart.notNull(x0), dart.notNull(y1) - dart.notNull(y0));
    return new ui.Offset.new(coeff.evalX(t), coeff.evalY(t));
  };
  _engine.pathToSvgClipPath = function pathToSvgClipPath(path, opts) {
    if (path == null) dart.nullFailed(I[398], 24, 41, "path");
    let offsetX = opts && 'offsetX' in opts ? opts.offsetX : 0;
    if (offsetX == null) dart.nullFailed(I[398], 25, 13, "offsetX");
    let offsetY = opts && 'offsetY' in opts ? opts.offsetY : 0;
    if (offsetY == null) dart.nullFailed(I[398], 26, 12, "offsetY");
    let scaleX = opts && 'scaleX' in opts ? opts.scaleX : 1;
    if (scaleX == null) dart.nullFailed(I[398], 27, 12, "scaleX");
    let scaleY = opts && 'scaleY' in opts ? opts.scaleY : 1;
    if (scaleY == null) dart.nullFailed(I[398], 28, 12, "scaleY");
    _engine._clipIdCounter = dart.notNull(_engine._clipIdCounter) + 1;
    let root = T$10.SVGSVGElement()[_as](_engine['DomNodeExtension|cloneNode'](_engine.kSvgResourceHeader, false));
    let defs = _engine.createSVGDefsElement();
    root.append(defs);
    let clipId = "svgClip" + dart.str(_engine._clipIdCounter);
    let clipPath = _engine.createSVGClipPathElement();
    defs.append(clipPath);
    _engine['DomElementExtension|set#id'](clipPath, clipId);
    let svgPath = _engine.createSVGPathElement();
    clipPath.append(svgPath);
    _engine['DomElementExtension|setAttribute'](svgPath, "fill", "#FFFFFF");
    if (ui_web.browser.browserEngine != ui_web.BrowserEngine.firefox) {
      _engine['DomElementExtension|setAttribute'](clipPath, "clipPathUnits", "objectBoundingBox");
      _engine['DomElementExtension|setAttribute'](svgPath, "transform", "scale(" + dart.str(scaleX) + ", " + dart.str(scaleY) + ")");
    }
    if (path.fillType == ui.PathFillType.evenOdd) {
      _engine['DomElementExtension|setAttribute'](svgPath, "clip-rule", "evenodd");
    } else {
      _engine['DomElementExtension|setAttribute'](svgPath, "clip-rule", "nonzero");
    }
    _engine['DomElementExtension|setAttribute'](svgPath, "d", _engine.pathToSvg(T$9.SurfacePath()[_as](path).pathRef, {offsetX: offsetX, offsetY: offsetY}));
    return root;
  };
  _engine.createSvgClipUrl = function createSvgClipUrl() {
    return "url(#svgClip" + dart.str(_engine._clipIdCounter) + ")";
  };
  _engine.resetSvgClipIds = function resetSvgClipIds() {
    _engine._clipIdCounter = 0;
  };
  _engine.reduceCanvasMemoryUsage = function reduceCanvasMemoryUsage() {
    let canvasCount = _engine._recycledCanvases[$length];
    for (let i = 0; i < dart.notNull(canvasCount); i = i + 1) {
      _engine._recycledCanvases[$_get](i).dispose();
    }
    _engine._recycledCanvases[$clear]();
  };
  _engine._recycleCanvas = function _recycleCanvas(canvas) {
    if (canvas != null && dart.test(_engine._recycledCanvases[$contains](canvas))) {
      return;
    }
    if (T$11.BitmapCanvas()[_is](canvas)) {
      canvas.setElementCache(null);
      if (dart.test(canvas.isReusable())) {
        _engine._recycledCanvases[$add](canvas);
        if (dart.notNull(_engine._recycledCanvases[$length]) > 30) {
          let removedCanvas = _engine._recycledCanvases[$removeAt](0);
          removedCanvas.dispose();
          ;
        }
        ;
      } else {
        canvas.dispose();
      }
    }
  };
  _engine._computePixelDensity = function _computePixelDensity(transform, width, height) {
    if (width == null) dart.nullFailed(I[298], 783, 56, "width");
    if (height == null) dart.nullFailed(I[298], 783, 70, "height");
    if (transform == null || dart.test(transform.isIdentityOrTranslation())) {
      return 1.0;
    }
    let m = transform.storage;
    let minX = dart.notNull(m[$_get](12)) * dart.notNull(m[$_get](15));
    let minY = dart.notNull(m[$_get](13)) * dart.notNull(m[$_get](15));
    let maxX = minX;
    let maxY = minY;
    let x = width;
    let y = height;
    let wp = 1.0 / (dart.notNull(m[$_get](3)) * dart.notNull(x) + dart.notNull(m[$_get](7)) * dart.notNull(y) + dart.notNull(m[$_get](15)));
    let xp = (dart.notNull(m[$_get](0)) * dart.notNull(x) + dart.notNull(m[$_get](4)) * dart.notNull(y) + dart.notNull(m[$_get](12))) * wp;
    let yp = (dart.notNull(m[$_get](1)) * dart.notNull(x) + dart.notNull(m[$_get](5)) * dart.notNull(y) + dart.notNull(m[$_get](13))) * wp;
    minX = math.min(T$.double(), minX, xp);
    maxX = math.max(T$.double(), maxX, xp);
    minY = math.min(T$.double(), minY, yp);
    maxY = math.max(T$.double(), maxY, yp);
    x = 0.0;
    wp = 1.0 / (dart.notNull(m[$_get](3)) * dart.notNull(x) + dart.notNull(m[$_get](7)) * dart.notNull(y) + dart.notNull(m[$_get](15)));
    xp = (dart.notNull(m[$_get](0)) * dart.notNull(x) + dart.notNull(m[$_get](4)) * dart.notNull(y) + dart.notNull(m[$_get](12))) * wp;
    yp = (dart.notNull(m[$_get](1)) * dart.notNull(x) + dart.notNull(m[$_get](5)) * dart.notNull(y) + dart.notNull(m[$_get](13))) * wp;
    minX = math.min(T$.double(), minX, xp);
    maxX = math.max(T$.double(), maxX, xp);
    minY = math.min(T$.double(), minY, yp);
    maxY = math.max(T$.double(), maxY, yp);
    x = width;
    y = 0.0;
    wp = 1.0 / (dart.notNull(m[$_get](3)) * dart.notNull(x) + dart.notNull(m[$_get](7)) * dart.notNull(y) + dart.notNull(m[$_get](15)));
    xp = (dart.notNull(m[$_get](0)) * dart.notNull(x) + dart.notNull(m[$_get](4)) * dart.notNull(y) + dart.notNull(m[$_get](12))) * wp;
    yp = (dart.notNull(m[$_get](1)) * dart.notNull(x) + dart.notNull(m[$_get](5)) * dart.notNull(y) + dart.notNull(m[$_get](13))) * wp;
    minX = math.min(T$.double(), minX, xp);
    maxX = math.max(T$.double(), maxX, xp);
    minY = math.min(T$.double(), minY, yp);
    maxY = math.max(T$.double(), maxY, yp);
    let scaleX = (maxX - minX) / dart.notNull(width);
    let scaleY = (maxY - minY) / dart.notNull(height);
    let scale = math.min(T$.double(), scaleX, scaleY);
    if (scale < 1e-9 || scale === 1) {
      return 1.0;
    }
    if (scale > 1) {
      scale = math.min(T$.double(), 4.0, (scale / 2.0)[$ceil]() * 2.0);
      if (dart.notNull(width) * dart.notNull(height) * scale * scale > 4194304 && scale > 2) {
        scale = 4194304 * 0.8 / (dart.notNull(width) * dart.notNull(height));
      }
    } else {
      scale = math.max(T$.double(), 2.0 / (2.0 / scale)[$floor](), 0.0001);
    }
    return scale;
  };
  _engine._measureBorderRadius = function _measureBorderRadius(x, y) {
    if (x == null) dart.nullFailed(I[300], 13, 36, "x");
    if (y == null) dart.nullFailed(I[300], 13, 46, "y");
    return dart.notNull(x) * dart.notNull(x) + dart.notNull(y) * dart.notNull(y);
  };
  _engine._getPaintSpread = function _getPaintSpread(paint) {
    if (paint == null) dart.nullFailed(I[300], 2049, 37, "paint");
    let spread = 0.0;
    let maskFilter = paint.maskFilter;
    if (maskFilter != null) {
      spread = spread + dart.notNull(maskFilter.webOnlySigma) * 2.0;
    }
    if (paint.strokeWidth !== 0) {
      spread = spread + dart.notNull(paint.strokeWidth) * 0.70710678118;
    }
    return spread;
  };
  _engine.initWebGl = function initWebGl() {
    _engine.glRenderer == null ? _engine.glRenderer = new _engine._WebGlRenderer.new() : null;
  };
  _engine._computeVerticesBounds = function _computeVerticesBounds(positions, transform) {
    if (positions == null) dart.nullFailed(I[301], 476, 44, "positions");
    if (transform == null) dart.nullFailed(I[301], 476, 63, "transform");
    let minValueX = null;
    let maxValueX = null;
    let minValueY = null;
    let maxValueY = null;
    minValueX = maxValueX = positions[$_get](0);
    minValueY = maxValueY = positions[$_get](1);
    let len = positions[$length];
    for (let i = 2; i < dart.notNull(len); i = i + 2) {
      let x = positions[$_get](i);
      let y = positions[$_get](i + 1);
      if (x[$isNaN] || y[$isNaN]) {
        return ui.Rect.zero;
      }
      minValueX = math.min(T$.double(), minValueX, x);
      maxValueX = math.max(T$.double(), maxValueX, x);
      minValueY = math.min(T$.double(), minValueY, y);
      maxValueY = math.max(T$.double(), maxValueY, y);
    }
    return _engine._transformBounds(transform, minValueX, minValueY, maxValueX, maxValueY);
  };
  _engine._transformBounds = function _transformBounds(transform, left, top, right, bottom) {
    if (transform == null) dart.nullFailed(I[301], 499, 13, "transform");
    if (left == null) dart.nullFailed(I[301], 499, 31, "left");
    if (top == null) dart.nullFailed(I[301], 499, 44, "top");
    if (right == null) dart.nullFailed(I[301], 499, 56, "right");
    if (bottom == null) dart.nullFailed(I[301], 499, 70, "bottom");
    let storage = transform.storage;
    let m0 = storage[$_get](0);
    let m1 = storage[$_get](1);
    let m4 = storage[$_get](4);
    let m5 = storage[$_get](5);
    let m12 = storage[$_get](12);
    let m13 = storage[$_get](13);
    let x0 = dart.notNull(m0) * dart.notNull(left) + dart.notNull(m4) * dart.notNull(top) + dart.notNull(m12);
    let y0 = dart.notNull(m1) * dart.notNull(left) + dart.notNull(m5) * dart.notNull(top) + dart.notNull(m13);
    let x1 = dart.notNull(m0) * dart.notNull(right) + dart.notNull(m4) * dart.notNull(top) + dart.notNull(m12);
    let y1 = dart.notNull(m1) * dart.notNull(right) + dart.notNull(m5) * dart.notNull(top) + dart.notNull(m13);
    let x2 = dart.notNull(m0) * dart.notNull(right) + dart.notNull(m4) * dart.notNull(bottom) + dart.notNull(m12);
    let y2 = dart.notNull(m1) * dart.notNull(right) + dart.notNull(m5) * dart.notNull(bottom) + dart.notNull(m13);
    let x3 = dart.notNull(m0) * dart.notNull(left) + dart.notNull(m4) * dart.notNull(bottom) + dart.notNull(m12);
    let y3 = dart.notNull(m1) * dart.notNull(left) + dart.notNull(m5) * dart.notNull(bottom) + dart.notNull(m13);
    return new ui.Rect.fromLTRB(math.min(T$.double(), x0, math.min(T$.double(), x1, math.min(T$.double(), x2, x3))), math.min(T$.double(), y0, math.min(T$.double(), y1, math.min(T$.double(), y2, y3))), math.max(T$.double(), x0, math.max(T$.double(), x1, math.max(T$.double(), x2, x3))), math.max(T$.double(), y0, math.max(T$.double(), y1, math.max(T$.double(), y2, y3))));
  };
  _engine.convertVertexPositions = function convertVertexPositions(mode, positions) {
    let t$361752, t$361752$, t$361752$0, t$361752$1, t$361752$2, t$361752$3, t$361752$4, t$361752$5, t$361752$6, t$361752$7, t$361752$8, t$361752$9, t$361752$10, t$361752$11;
    if (mode == null) dart.nullFailed(I[301], 523, 50, "mode");
    if (positions == null) dart.nullFailed(I[301], 523, 68, "positions");
    if (!(mode != ui.VertexMode.triangles)) dart.assertFailed(null, I[301], 524, 10, "mode != ui.VertexMode.triangles");
    if (mode == ui.VertexMode.triangleFan) {
      let coordinateCount = (dart.notNull(positions[$length]) / 2)[$truncate]();
      let triangleCount = coordinateCount - 2;
      let triangleList = _native_typed_data.NativeFloat32List.new(triangleCount * 3 * 2);
      let centerX = positions[$_get](0);
      let centerY = positions[$_get](1);
      let destIndex = 0;
      let positionIndex = 2;
      for (let triangleIndex = 0; triangleIndex < triangleCount; triangleIndex = triangleIndex + 1, positionIndex = positionIndex + 2) {
        triangleList[$_set]((t$361752 = destIndex, destIndex = t$361752 + 1, t$361752), centerX);
        triangleList[$_set]((t$361752$ = destIndex, destIndex = t$361752$ + 1, t$361752$), centerY);
        triangleList[$_set]((t$361752$0 = destIndex, destIndex = t$361752$0 + 1, t$361752$0), positions[$_get](positionIndex));
        triangleList[$_set]((t$361752$1 = destIndex, destIndex = t$361752$1 + 1, t$361752$1), positions[$_get](positionIndex + 1));
        triangleList[$_set]((t$361752$2 = destIndex, destIndex = t$361752$2 + 1, t$361752$2), positions[$_get](positionIndex + 2));
        triangleList[$_set]((t$361752$3 = destIndex, destIndex = t$361752$3 + 1, t$361752$3), positions[$_get](positionIndex + 3));
      }
      return triangleList;
    } else {
      if (!(mode == ui.VertexMode.triangleStrip)) dart.assertFailed(null, I[301], 545, 12, "mode == ui.VertexMode.triangleStrip");
      let vertexCount = (dart.notNull(positions[$length]) / 2)[$truncate]();
      let triangleCount = vertexCount - 2;
      let x0 = positions[$_get](0);
      let y0 = positions[$_get](1);
      let x1 = positions[$_get](2);
      let y1 = positions[$_get](3);
      let triangleList = _native_typed_data.NativeFloat32List.new(triangleCount * 3 * 2);
      let destIndex = 0;
      for (let i = 0, positionIndex = 4; i < triangleCount; i = i + 1) {
        let x2 = positions[$_get]((t$361752$4 = positionIndex, positionIndex = t$361752$4 + 1, t$361752$4));
        let y2 = positions[$_get]((t$361752$5 = positionIndex, positionIndex = t$361752$5 + 1, t$361752$5));
        triangleList[$_set]((t$361752$6 = destIndex, destIndex = t$361752$6 + 1, t$361752$6), x0);
        triangleList[$_set]((t$361752$7 = destIndex, destIndex = t$361752$7 + 1, t$361752$7), y0);
        triangleList[$_set]((t$361752$8 = destIndex, destIndex = t$361752$8 + 1, t$361752$8), x1);
        triangleList[$_set]((t$361752$9 = destIndex, destIndex = t$361752$9 + 1, t$361752$9), y1);
        triangleList[$_set]((t$361752$10 = destIndex, destIndex = t$361752$10 + 1, t$361752$10), x2);
        triangleList[$_set]((t$361752$11 = destIndex, destIndex = t$361752$11 + 1, t$361752$11), y2);
        x0 = x1;
        y0 = y1;
        x1 = x2;
        y1 = y2;
      }
      return triangleList;
    }
  };
  _engine.ensureResourceManagerInitialized = function ensureResourceManagerInitialized(implicitView) {
    if (implicitView == null) dart.nullFailed(I[303], 71, 59, "implicitView");
    if (_engine.ResourceManager._instance != null) {
      return;
    }
    _engine.ResourceManager._instance = new _engine.ResourceManager.new(implicitView.dom);
  };
  _engine.svgMaskFilterFromImageAndBlendMode = function svgMaskFilterFromImageAndBlendMode(imageUrl, blendMode, width, height) {
    if (imageUrl == null) dart.nullFailed(I[306], 178, 12, "imageUrl");
    if (blendMode == null) dart.nullFailed(I[306], 178, 35, "blendMode");
    if (width == null) dart.nullFailed(I[306], 178, 53, "width");
    if (height == null) dart.nullFailed(I[306], 178, 67, "height");
    let svgFilter = null;
    switch (blendMode) {
      case C[553] || CT.C553:
        {
          svgFilter = _engine._srcImageToSvg(imageUrl, width, height);
          break;
        }
      case C[557] || CT.C557:
      case C[561] || CT.C561:
        {
          svgFilter = _engine._srcInImageToSvg(imageUrl, width, height);
          break;
        }
      case C[559] || CT.C559:
        {
          svgFilter = _engine._srcOutImageToSvg(imageUrl, width, height);
          break;
        }
      case C[563] || CT.C563:
        {
          svgFilter = _engine._xorImageToSvg(imageUrl, width, height);
          break;
        }
      case C[564] || CT.C564:
        {
          svgFilter = _engine._compositeImageToSvg(imageUrl, 0.0, 1.0, 1.0, 0.0, width, height);
          break;
        }
      case C[565] || CT.C565:
        {
          svgFilter = _engine._modulateImageToSvg(imageUrl, width, height);
          break;
        }
      case C[567] || CT.C567:
        {
          svgFilter = _engine._blendImageToSvg(imageUrl, dart.nullCheck(_engine.blendModeToSvgEnum(ui.BlendMode.hardLight)), width, height, {swapLayers: true});
          break;
        }
      case C[578] || CT.C578:
      case C[570] || CT.C570:
      case C[571] || CT.C571:
      case C[577] || CT.C577:
      case C[579] || CT.C579:
      case C[580] || CT.C580:
      case C[576] || CT.C576:
      case C[566] || CT.C566:
      case C[568] || CT.C568:
      case C[569] || CT.C569:
      case C[572] || CT.C572:
      case C[573] || CT.C573:
      case C[574] || CT.C574:
      case C[575] || CT.C575:
        {
          svgFilter = _engine._blendImageToSvg(imageUrl, dart.nullCheck(_engine.blendModeToSvgEnum(blendMode)), width, height);
          break;
        }
      case C[554] || CT.C554:
      case C[562] || CT.C562:
      case C[558] || CT.C558:
      case C[560] || CT.C560:
      case C[556] || CT.C556:
      case C[552] || CT.C552:
      case C[555] || CT.C555:
        {
          dart.throw(new core.UnsupportedError.new("Invalid svg filter request for blend-mode " + dart.str(blendMode)));
        }
      default:
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
    }
    return svgFilter;
  };
  _engine._srcInImageToSvg = function _srcInImageToSvg(imageUrl, width, height) {
    if (imageUrl == null) dart.nullFailed(I[306], 259, 35, "imageUrl");
    if (width == null) dart.nullFailed(I[306], 259, 52, "width");
    if (height == null) dart.nullFailed(I[306], 259, 66, "height");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeColorMatrix(C[1084] || CT.C1084, {result: "destalpha"});
    builder.setFeImage({href: imageUrl, result: "image", width: width, height: height});
    builder.setFeComposite({in1: "image", in2: "destalpha", operator: 6, k1: 1, k2: 0, k3: 0, k4: 0, result: "comp"});
    return builder.build();
  };
  _engine._srcImageToSvg = function _srcImageToSvg(imageUrl, width, height) {
    if (imageUrl == null) dart.nullFailed(I[306], 289, 33, "imageUrl");
    if (width == null) dart.nullFailed(I[306], 289, 50, "width");
    if (height == null) dart.nullFailed(I[306], 289, 64, "height");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeImage({href: imageUrl, result: "comp", width: width, height: height});
    return builder.build();
  };
  _engine._srcOutImageToSvg = function _srcOutImageToSvg(imageUrl, width, height) {
    if (imageUrl == null) dart.nullFailed(I[306], 300, 36, "imageUrl");
    if (width == null) dart.nullFailed(I[306], 300, 53, "width");
    if (height == null) dart.nullFailed(I[306], 300, 67, "height");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeImage({href: imageUrl, result: "image", width: width, height: height});
    builder.setFeComposite({in1: "image", in2: "SourceGraphic", operator: 3, result: "comp"});
    return builder.build();
  };
  _engine._xorImageToSvg = function _xorImageToSvg(imageUrl, width, height) {
    if (imageUrl == null) dart.nullFailed(I[306], 317, 33, "imageUrl");
    if (width == null) dart.nullFailed(I[306], 317, 50, "width");
    if (height == null) dart.nullFailed(I[306], 317, 64, "height");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeImage({href: imageUrl, result: "image", width: width, height: height});
    builder.setFeComposite({in1: "image", in2: "SourceGraphic", operator: 5, result: "comp"});
    return builder.build();
  };
  _engine._compositeImageToSvg = function _compositeImageToSvg(imageUrl, k1, k2, k3, k4, width, height) {
    if (imageUrl == null) dart.nullFailed(I[306], 336, 39, "imageUrl");
    if (k1 == null) dart.nullFailed(I[306], 336, 56, "k1");
    if (k2 == null) dart.nullFailed(I[306], 336, 67, "k2");
    if (k3 == null) dart.nullFailed(I[306], 336, 78, "k3");
    if (k4 == null) dart.nullFailed(I[306], 337, 12, "k4");
    if (width == null) dart.nullFailed(I[306], 337, 23, "width");
    if (height == null) dart.nullFailed(I[306], 337, 37, "height");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeImage({href: imageUrl, result: "image", width: width, height: height});
    builder.setFeComposite({in1: "image", in2: "SourceGraphic", operator: 6, k1: k1, k2: k2, k3: k3, k4: k4, result: "comp"});
    return builder.build();
  };
  _engine._modulateImageToSvg = function _modulateImageToSvg(imageUrl, width, height) {
    if (imageUrl == null) dart.nullFailed(I[306], 361, 38, "imageUrl");
    if (width == null) dart.nullFailed(I[306], 361, 55, "width");
    if (height == null) dart.nullFailed(I[306], 361, 69, "height");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeImage({href: imageUrl, result: "image", width: width, height: height});
    builder.setFeComposite({in1: "image", in2: "SourceGraphic", operator: 6, k1: 1, k2: 0, k3: 0, k4: 0, result: "comp"});
    return builder.build();
  };
  _engine._blendImageToSvg = function _blendImageToSvg(imageUrl, svgBlendMode, width, height, opts) {
    if (imageUrl == null) dart.nullFailed(I[306], 384, 12, "imageUrl");
    if (svgBlendMode == null) dart.nullFailed(I[306], 384, 35, "svgBlendMode");
    if (width == null) dart.nullFailed(I[306], 384, 56, "width");
    if (height == null) dart.nullFailed(I[306], 384, 70, "height");
    let swapLayers = opts && 'swapLayers' in opts ? opts.swapLayers : false;
    if (swapLayers == null) dart.nullFailed(I[306], 385, 11, "swapLayers");
    let builder = new _engine.SvgFilterBuilder.new();
    builder.setFeImage({href: imageUrl, result: "image", width: width, height: height});
    if (dart.test(swapLayers)) {
      builder.setFeBlend({in1: "SourceGraphic", in2: "image", mode: svgBlendMode.blendMode});
    } else {
      builder.setFeBlend({in1: "image", in2: "SourceGraphic", mode: svgBlendMode.blendMode});
    }
    return builder.build();
  };
  _engine.writeUnrolledBinarySearch = function writeUnrolledBinarySearch(method, start, end, opts) {
    if (method == null) dart.nullFailed(I[308], 137, 45, "method");
    if (start == null) dart.nullFailed(I[308], 137, 57, "start");
    if (end == null) dart.nullFailed(I[308], 137, 68, "end");
    let probe = opts && 'probe' in opts ? opts.probe : null;
    if (probe == null) dart.nullFailed(I[308], 138, 22, "probe");
    let sourcePrefix = opts && 'sourcePrefix' in opts ? opts.sourcePrefix : null;
    if (sourcePrefix == null) dart.nullFailed(I[308], 139, 21, "sourcePrefix");
    let biasName = opts && 'biasName' in opts ? opts.biasName : null;
    if (biasName == null) dart.nullFailed(I[308], 140, 21, "biasName");
    let scaleName = opts && 'scaleName' in opts ? opts.scaleName : null;
    if (scaleName == null) dart.nullFailed(I[308], 141, 21, "scaleName");
    if (start == end) {
      let biasSource = dart.str(biasName) + "_" + dart.str(start);
      method.addStatement(dart.str(biasName) + " = " + biasSource + ";");
      let scaleSource = dart.str(scaleName) + "_" + dart.str(start);
      method.addStatement(dart.str(scaleName) + " = " + scaleSource + ";");
    } else {
      let mid = ((dart.notNull(start) + dart.notNull(end)) / 2)[$truncate]();
      let thresholdAtMid = dart.str(sourcePrefix) + "_" + dart.strSafe(((mid + 1) / 4)[$truncate]());
      thresholdAtMid = thresholdAtMid + ("." + dart.str(_engine.vectorComponentIndexToName((mid + 1)[$modulo](4))));
      method.addStatement("if (" + dart.str(probe) + " < " + thresholdAtMid + ") {");
      method.indent();
      _engine.writeUnrolledBinarySearch(method, start, mid, {probe: probe, sourcePrefix: sourcePrefix, biasName: biasName, scaleName: scaleName});
      method.unindent();
      method.addStatement("} else {");
      method.indent();
      _engine.writeUnrolledBinarySearch(method, mid + 1, end, {probe: probe, sourcePrefix: sourcePrefix, biasName: biasName, scaleName: scaleName});
      method.unindent();
      method.addStatement("}");
    }
  };
  _engine.vectorComponentIndexToName = function vectorComponentIndexToName(index) {
    if (index == null) dart.nullFailed(I[308], 172, 39, "index");
    if (!(dart.notNull(index) >= 0 && dart.notNull(index) <= 4)) dart.assertFailed(null, I[308], 173, 10, "index >= 0 && index <= 4");
    return "xyzw"[$_get](index);
  };
  _engine._addColorStopsToCanvasGradient = function _addColorStopsToCanvasGradient(gradient, colors, colorStops, isDecal) {
    if (gradient == null) dart.nullFailed(I[309], 394, 55, "gradient");
    if (colors == null) dart.nullFailed(I[309], 395, 20, "colors");
    if (isDecal == null) dart.nullFailed(I[309], 395, 59, "isDecal");
    let scale = null;
    let offset = null;
    if (dart.test(isDecal)) {
      scale = 0.999;
      offset = (1.0 - dart.notNull(scale)) / 2.0;
      _engine['DomCanvasGradientExtension|addColorStop'](gradient, 0, "#00000000");
    } else {
      scale = 1.0;
      offset = 0.0;
    }
    if (colorStops == null) {
      if (!(colors[$length] === 2)) dart.assertFailed(null, I[309], 406, 12, "colors.length == 2");
      _engine['DomCanvasGradientExtension|addColorStop'](gradient, offset, _engine['CssColor|toCssString'](colors[$_get](0)));
      _engine['DomCanvasGradientExtension|addColorStop'](gradient, 1 - dart.notNull(offset), _engine['CssColor|toCssString'](colors[$_get](1)));
    } else {
      for (let i = 0; i < dart.notNull(colors[$length]); i = i + 1) {
        let colorStop = colorStops[$_get](i)[$clamp](0.0, 1.0);
        _engine['DomCanvasGradientExtension|addColorStop'](gradient, colorStop * dart.notNull(scale) + dart.notNull(offset), _engine['CssColor|toCssString'](colors[$_get](i)));
      }
    }
    if (dart.test(isDecal)) {
      _engine['DomCanvasGradientExtension|addColorStop'](gradient, 1, "#00000000");
    }
  };
  _engine._writeSharedGradientShader = function _writeSharedGradientShader(builder, method, gradient, tileMode) {
    if (builder == null) dart.nullFailed(I[309], 424, 49, "builder");
    if (method == null) dart.nullFailed(I[309], 424, 71, "method");
    if (gradient == null) dart.nullFailed(I[309], 425, 24, "gradient");
    if (tileMode == null) dart.nullFailed(I[309], 425, 46, "tileMode");
    method.addStatement("vec4 bias;");
    method.addStatement("vec4 scale;");
    for (let i = 0; i < ((dart.notNull(gradient.thresholdCount) - 1) / 4)[$truncate]() + 1; i = i + 1) {
      builder.addUniform(11, {name: "threshold_" + dart.strSafe(i)});
    }
    for (let i = 0; i < dart.notNull(gradient.thresholdCount); i = i + 1) {
      builder.addUniform(11, {name: "bias_" + dart.strSafe(i)});
      builder.addUniform(11, {name: "scale_" + dart.strSafe(i)});
    }
    let probeName = "st";
    switch (tileMode) {
      case C[586] || CT.C586:
        {
          method.addStatement("float tiled_st = clamp(st, 0.0, 1.0);");
          probeName = "tiled_st";
          break;
        }
      case C[803] || CT.C803:
        {
          break;
        }
      case C[801] || CT.C801:
        {
          method.addStatement("float tiled_st = fract(st);");
          probeName = "tiled_st";
          break;
        }
      case C[802] || CT.C802:
        {
          method.addStatement("float t_1 = (st - 1.0);");
          method.addStatement("float tiled_st = abs((t_1 - 2.0 * floor(t_1 * 0.5)) - 1.0);");
          probeName = "tiled_st";
          break;
        }
      default:
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
    }
    _engine.writeUnrolledBinarySearch(method, 0, dart.notNull(gradient.thresholdCount) - 1, {probe: probeName, sourcePrefix: "threshold", biasName: "bias", scaleName: "scale"});
    if (tileMode == ui.TileMode.decal) {
      method.addStatement("if (st < 0.0 || st > 1.0) {");
      method.addStatement("  " + dart.str(builder.fragmentColor.name) + " = vec4(0, 0, 0, 0);");
      method.addStatement("  return;");
      method.addStatement("}");
    }
    return probeName;
  };
  _engine.createHtmlColorFilter = function createHtmlColorFilter(colorFilter) {
    if (colorFilter == null) {
      return null;
    }
    switch (colorFilter.type) {
      case C[849] || CT.C849:
        {
          if (colorFilter.color == null || colorFilter.blendMode == null) {
            return null;
          }
          return new _engine.ModeHtmlColorFilter.new(dart.nullCheck(colorFilter.color), dart.nullCheck(colorFilter.blendMode));
        }
      case C[850] || CT.C850:
        {
          if (colorFilter.matrix == null) {
            return null;
          }
          if (!(dart.nullCheck(colorFilter.matrix)[$length] === 20)) dart.assertFailed("Color Matrix must have 20 entries.", I[309], 895, 16, "colorFilter.matrix!.length == 20");
          return new _engine.MatrixHtmlColorFilter.new(dart.nullCheck(colorFilter.matrix));
        }
      case C[851] || CT.C851:
        {
          dart.throw(new core.UnimplementedError.new("ColorFilter.linearToSrgbGamma not implemented for HTML renderer"));
        }
      case C[852] || CT.C852:
        {
          dart.throw(new core.UnimplementedError.new("ColorFilter.srgbToLinearGamma not implemented for HTML renderer."));
        }
      default:
        {
          dart.throw(new core.StateError.new("Unknown mode " + dart.str(colorFilter) + ".type for ColorFilter."));
        }
    }
  };
  _engine._isGLSLReservedWord = function _isGLSLReservedWord(name) {
    if (name == null) dart.nullFailed(I[310], 416, 33, "name");
    return _engine._kReservedWords[$contains](name);
  };
  _engine.commitScene = function commitScene(scene) {
    if (scene == null) dart.nullFailed(I[277], 35, 33, "scene");
    if (dart.test(_engine.paintQueue[$isNotEmpty])) {
      try {
        if (dart.notNull(_engine.paintQueue[$length]) > 1) {
          _engine.paintQueue[$sort](dart.fn((a, b) => {
            if (a == null) dart.nullFailed(I[277], 42, 39, "a");
            if (b == null) dart.nullFailed(I[277], 42, 55, "b");
            let aSize = dart.notNull(a.canvasSize.height) * dart.notNull(a.canvasSize.width);
            let bSize = dart.notNull(b.canvasSize.height) * dart.notNull(b.canvasSize.width);
            return bSize[$compareTo](aSize);
          }, T$13.PaintRequestAndPaintRequestToint()));
        }
        for (let request of _engine.paintQueue) {
          request.paintCallback();
        }
      } finally {
        _engine.paintQueue = G$.JSArrayOfPaintRequest().of([]);
      }
    }
    if (dart.test(_engine.retainedSurfaces[$isNotEmpty])) {
      for (let i = 0; i < dart.notNull(_engine.retainedSurfaces[$length]); i = i + 1) {
        let retainedSurface = _engine.retainedSurfaces[$_get](i);
        if (!dart.test(_engine.debugAssertSurfaceState(retainedSurface, _engine.PersistedSurfaceState.pendingRetention))) dart.assertFailed(null, I[277], 61, 14, "debugAssertSurfaceState(\n          retainedSurface, PersistedSurfaceState.pendingRetention)");
        retainedSurface.state = _engine.PersistedSurfaceState.active;
      }
      _engine.retainedSurfaces = G$.JSArrayOfPersistedSurface().of([]);
    }
    ;
    if (!dart.test(dart.fn(() => {
      let validationErrors = G.JSArrayOfString().of([]);
      scene.debugValidate(validationErrors);
      if (dart.test(validationErrors[$isNotEmpty])) {
        core.print("ENGINE LAYER TREE INCONSISTENT:\n" + dart.str(validationErrors[$map](T$.String(), dart.fn(e => {
          if (e == null) dart.nullFailed(I[277], 77, 43, "e");
          return "  - " + dart.str(e) + "\n";
        }, T$.StringToString()))[$join]()));
      }
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 72, 10, "() {\n    final List<String> validationErrors = <String>[];\n    scene.debugValidate(validationErrors);\n    if (validationErrors.isNotEmpty) {\n      print('ENGINE LAYER TREE INCONSISTENT:\\n'\n          '${validationErrors.map((String e) => '  - $e\\n').join()}');\n    }\n    return true;\n  }()");
    for (let i = 0; i < dart.notNull(_engine.frameReferences[$length]); i = i + 1) {
      _engine.frameReferences[$_get](i).value = null;
    }
    _engine.frameReferences = G$.JSArrayOfFrameReference().of([]);
    ;
    if (!dart.test(dart.fn(() => {
      _engine.debugFrameNumber = dart.notNull(_engine.debugFrameNumber) + 1;
      return true;
    }, T$.VoidTobool())())) dart.assertFailed(null, I[277], 90, 10, "() {\n    debugFrameNumber++;\n    return true;\n  }()");
  };
  _engine.debugAssertSurfaceState = function debugAssertSurfaceState(surface, state1, state2 = null, state3 = null) {
    if (surface == null) dart.nullFailed(I[277], 173, 22, "surface");
    if (state1 == null) dart.nullFailed(I[277], 173, 53, "state1");
    let validStates = G$.JSArrayOfPersistedSurfaceStateN().of([state1, state2, state3]);
    if (dart.test(validStates[$contains](surface.state))) {
      return true;
    }
    dart.throw(new _engine.PersistedSurfaceException.new(surface, "is in an unexpected state.\n" + "Expected one of: " + dart.str(validStates[$whereType](T$10.PersistedSurfaceState())[$join](", ")) + "\n" + "But was: " + dart.str(surface.state)));
  };
  _engine.surfaceStatsFor = function surfaceStatsFor(surface) {
    if (surface == null) dart.nullFailed(I[312], 22, 52, "surface");
    {
      dart.throw(core.Exception.new("surfaceStatsFor is only available when debugExplainSurfaceStats is set to true."));
    }
    return _engine.surfaceStats[$putIfAbsent](surface, dart.fn(() => new _engine.DebugSurfaceStats.new(surface), T$13.VoidToDebugSurfaceStats()));
  };
  _engine.debugRepaintSurfaceStatsOverlay = function debugRepaintSurfaceStatsOverlay(scene) {
    let t$361752, t$361752$, t$361752$0, t$361752$1, t$361752$2, t$361752$3, t$361752$4, t$361752$5;
    if (scene == null) dart.nullFailed(I[312], 92, 53, "scene");
    let overlayWidth = dart.nullCheck(_engine['DomWindowExtension|get#innerWidth'](dart.jsInteropNullCheck(dart.global.window)))[$toInt]();
    _engine._surfaceStatsTimeline[$add](_engine.surfaceStats);
    while (dart.notNull(_engine._surfaceStatsTimeline[$length]) > overlayWidth / 2) {
      _engine._surfaceStatsTimeline[$removeAt](0);
    }
    if (_engine._debugSurfaceStatsOverlayCtx == null) {
      let debugSurfaceStatsOverlay = _engine.createDomCanvasElement({width: overlayWidth, height: 120});
      t$361752 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), debugSurfaceStatsOverlay, "style");
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#position'](t$361752, "fixed");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$361752, "0");
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$361752, "0");
        _engine['DomCSSStyleDeclarationExtension|set#zIndex'](t$361752, "1000");
        _engine['DomCSSStyleDeclarationExtension|set#opacity'](t$361752, "0.8");
        return t$361752;
      })();
      _engine._debugSurfaceStatsOverlayCtx = _engine['DomCanvasElementExtension|get#context2D'](debugSurfaceStatsOverlay);
      dart.nullCheck(js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body")).append(debugSurfaceStatsOverlay);
    }
    t$361752$ = dart.nullCheck(_engine._debugSurfaceStatsOverlayCtx);
    (() => {
      _engine['DomCanvasRenderingContext2DExtension|set#fillStyle'](t$361752$, "black");
      t$361752$.beginPath();
      _engine['DomCanvasRenderingContext2DExtension|rect'](t$361752$, 0, 0, overlayWidth, 120);
      _engine['DomCanvasRenderingContext2DExtension|fill'](t$361752$);
      return t$361752$;
    })();
    let physicalScreenWidth = dart.nullCheck(_engine['DomWindowExtension|get#innerWidth'](dart.jsInteropNullCheck(dart.global.window))) * dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio);
    let physicalScreenHeight = dart.nullCheck(_engine['DomWindowExtension|get#innerHeight'](dart.jsInteropNullCheck(dart.global.window))) * dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio);
    let physicsScreenPixelCount = physicalScreenWidth * physicalScreenHeight;
    let totalDomNodeCount = _engine['DomElementExtension|querySelectorAll'](dart.nullCheck(scene.rootElement), "*")[$length];
    for (let i = 0; i < dart.notNull(_engine._surfaceStatsTimeline[$length]); i = i + 1) {
      let statsMap = _engine._surfaceStatsTimeline[$_get](i);
      let totals = new _engine.DebugSurfaceStats.new(null);
      let pixelCount = 0;
      for (let oneSurfaceStats of statsMap[$values]) {
        totals.aggregate(oneSurfaceStats);
        if (T$11.PersistedPicture()[_is](oneSurfaceStats.surface)) {
          let picture = T$11.PersistedPicture()[_as](dart.nullCheck(oneSurfaceStats.surface));
          pixelCount = pixelCount + dart.notNull(picture.bitmapPixelCount);
        }
      }
      let repaintRate = dart.notNull(totals.paintPixelCount) / pixelCount;
      let domAllocationRate = dart.notNull(totals.allocatedDomNodeCount) / dart.notNull(totalDomNodeCount);
      let bitmapAllocationRate = dart.notNull(totals.allocatedBitmapSizeInPixels) / physicsScreenPixelCount;
      let surfaceRetainRate = dart.notNull(totals.retainSurfaceCount) / dart.notNull(_engine._surfaceStatsTimeline[$_get](i)[$length]);
      t$361752$0 = dart.nullCheck(_engine._debugSurfaceStatsOverlayCtx);
      (() => {
        _engine['DomCanvasRenderingContext2DExtension|set#lineWidth'](t$361752$0, 2);
        _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'](t$361752$0, "red");
        t$361752$0.beginPath();
        _engine['DomCanvasRenderingContext2DExtension|moveTo'](t$361752$0, 2 * i, 30);
        _engine['DomCanvasRenderingContext2DExtension|lineTo'](t$361752$0, 2 * i, 30 * (1 - repaintRate));
        t$361752$0.stroke();
        return t$361752$0;
      })();
      t$361752$1 = dart.nullCheck(_engine._debugSurfaceStatsOverlayCtx);
      (() => {
        _engine['DomCanvasRenderingContext2DExtension|set#lineWidth'](t$361752$1, 2);
        _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'](t$361752$1, "red");
        t$361752$1.beginPath();
        _engine['DomCanvasRenderingContext2DExtension|moveTo'](t$361752$1, 2 * i, 2 * 30);
        _engine['DomCanvasRenderingContext2DExtension|lineTo'](t$361752$1, 2 * i, 30 * (2 - domAllocationRate));
        t$361752$1.stroke();
        return t$361752$1;
      })();
      t$361752$2 = dart.nullCheck(_engine._debugSurfaceStatsOverlayCtx);
      (() => {
        _engine['DomCanvasRenderingContext2DExtension|set#lineWidth'](t$361752$2, 2);
        _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'](t$361752$2, "red");
        t$361752$2.beginPath();
        _engine['DomCanvasRenderingContext2DExtension|moveTo'](t$361752$2, 2 * i, 3 * 30);
        _engine['DomCanvasRenderingContext2DExtension|lineTo'](t$361752$2, 2 * i, 30 * (3 - bitmapAllocationRate));
        t$361752$2.stroke();
        return t$361752$2;
      })();
      t$361752$3 = dart.nullCheck(_engine._debugSurfaceStatsOverlayCtx);
      (() => {
        _engine['DomCanvasRenderingContext2DExtension|set#lineWidth'](t$361752$3, 2);
        _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'](t$361752$3, "green");
        t$361752$3.beginPath();
        _engine['DomCanvasRenderingContext2DExtension|moveTo'](t$361752$3, 2 * i, 4 * 30);
        _engine['DomCanvasRenderingContext2DExtension|lineTo'](t$361752$3, 2 * i, 30 * (4 - surfaceRetainRate));
        t$361752$3.stroke();
        return t$361752$3;
      })();
    }
    t$361752$4 = dart.nullCheck(_engine._debugSurfaceStatsOverlayCtx);
    (() => {
      _engine['DomCanvasRenderingContext2DExtension|set#font'](t$361752$4, "normal normal 14px sans-serif");
      _engine['DomCanvasRenderingContext2DExtension|set#fillStyle'](t$361752$4, "white");
      _engine['DomCanvasRenderingContext2DExtension|fillText'](t$361752$4, "Repaint rate", 5, 30 - 5);
      _engine['DomCanvasRenderingContext2DExtension|fillText'](t$361752$4, "DOM alloc rate", 5, 2 * 30 - 5);
      _engine['DomCanvasRenderingContext2DExtension|fillText'](t$361752$4, "Bitmap alloc rate", 5, 3 * 30 - 5);
      _engine['DomCanvasRenderingContext2DExtension|fillText'](t$361752$4, "Retain rate", 5, 4 * 30 - 5);
      return t$361752$4;
    })();
    for (let i = 1; i <= 4; i = i + 1) {
      t$361752$5 = dart.nullCheck(_engine._debugSurfaceStatsOverlayCtx);
      (() => {
        _engine['DomCanvasRenderingContext2DExtension|set#lineWidth'](t$361752$5, 1);
        _engine['DomCanvasRenderingContext2DExtension|set#strokeStyle'](t$361752$5, "blue");
        t$361752$5.beginPath();
        _engine['DomCanvasRenderingContext2DExtension|moveTo'](t$361752$5, 0, 120 - 30 * i);
        _engine['DomCanvasRenderingContext2DExtension|lineTo'](t$361752$5, overlayWidth, 120 - 30 * i);
        t$361752$5.stroke();
        return t$361752$5;
      })();
    }
  };
  _engine.debugPrintSurfaceStats = function debugPrintSurfaceStats(scene, frameNumber) {
    let t$361752;
    if (scene == null) dart.nullFailed(I[312], 213, 44, "scene");
    if (frameNumber == null) dart.nullFailed(I[312], 213, 55, "frameNumber");
    let pictureCount = 0;
    let paintCount = 0;
    let bitmapCanvasCount = 0;
    let bitmapReuseCount = 0;
    let bitmapAllocationCount = 0;
    let bitmapPaintCount = 0;
    let bitmapPixelsAllocated = 0;
    let domCanvasCount = 0;
    let domPaintCount = 0;
    let surfaceRetainCount = 0;
    let elementReuseCount = 0;
    let totalAllocatedDomNodeCount = 0;
    function countReusesRecursively(surface) {
      if (surface == null) dart.nullFailed(I[312], 231, 48, "surface");
      let stats = _engine.surfaceStatsFor(surface);
      surfaceRetainCount = surfaceRetainCount + dart.notNull(stats.retainSurfaceCount);
      elementReuseCount = elementReuseCount + dart.notNull(stats.reuseElementCount);
      totalAllocatedDomNodeCount = totalAllocatedDomNodeCount + dart.notNull(stats.allocatedDomNodeCount);
      if (T$11.PersistedPicture()[_is](surface)) {
        pictureCount = pictureCount + 1;
        paintCount = paintCount + dart.notNull(stats.paintCount);
        if (T$13.DomCanvas()[_is](surface.canvas)) {
          domCanvasCount = domCanvasCount + 1;
          domPaintCount = domPaintCount + dart.notNull(stats.paintCount);
        }
        if (T$11.BitmapCanvas()[_is](surface.canvas)) {
          bitmapCanvasCount = bitmapCanvasCount + 1;
          bitmapPaintCount = bitmapPaintCount + dart.notNull(stats.paintCount);
        }
        bitmapReuseCount = bitmapReuseCount + dart.notNull(stats.reuseCanvasCount);
        bitmapAllocationCount = bitmapAllocationCount + dart.notNull(stats.allocateBitmapCanvasCount);
        bitmapPixelsAllocated = bitmapPixelsAllocated + dart.notNull(stats.allocatedBitmapSizeInPixels);
      }
      surface.visitChildren(countReusesRecursively);
    }
    dart.fn(countReusesRecursively, T$10.PersistedSurfaceTovoid());
    scene.visitChildren(countReusesRecursively);
    let buf = new core.StringBuffer.new();
    t$361752 = buf;
    (() => {
      t$361752.writeln("---------------------- FRAME #" + dart.str(frameNumber) + " -------------------------");
      t$361752.writeln("Surfaces retained: " + dart.strSafe(surfaceRetainCount));
      t$361752.writeln("Elements reused: " + dart.strSafe(elementReuseCount));
      t$361752.writeln("Elements allocated: " + dart.strSafe(totalAllocatedDomNodeCount));
      t$361752.writeln("Pictures: " + dart.strSafe(pictureCount));
      t$361752.writeln("  Painted: " + dart.strSafe(paintCount));
      t$361752.writeln("  Skipped painting: " + dart.strSafe(pictureCount - paintCount));
      t$361752.writeln("DOM canvases:");
      t$361752.writeln("  Painted: " + dart.strSafe(domPaintCount));
      t$361752.writeln("  Skipped painting: " + dart.strSafe(domCanvasCount - domPaintCount));
      t$361752.writeln("Bitmap canvases: " + dart.strSafe(bitmapCanvasCount));
      t$361752.writeln("  Painted: " + dart.strSafe(bitmapPaintCount));
      t$361752.writeln("  Skipped painting: " + dart.strSafe(bitmapCanvasCount - bitmapPaintCount));
      t$361752.writeln("  Reused: " + dart.strSafe(bitmapReuseCount));
      t$361752.writeln("  Allocated: " + dart.strSafe(bitmapAllocationCount));
      t$361752.writeln("  Allocated pixels: " + dart.strSafe(bitmapPixelsAllocated));
      t$361752.writeln("  Available for reuse: " + dart.str(_engine.recycledCanvases[$length]));
      return t$361752;
    })();
    async.scheduleMicrotask(dart.fn(() => {
      let t$361752;
      let canvasElements = _engine['DomDocumentExtension|querySelectorAll'](dart.jsInteropNullCheck(dart.global.document), "canvas");
      let canvasInfo = new core.StringBuffer.new();
      let pixelCount = canvasElements[$cast](T$9.DomCanvasElement())[$map](T$.int(), dart.fn(e => {
        if (e == null) dart.nullFailed(I[312], 290, 37, "e");
        let pixels = (dart.nullCheck(_engine['DomCanvasElementExtension|get#width'](e)) * dart.nullCheck(_engine['DomCanvasElementExtension|get#height'](e)))[$toInt]();
        canvasInfo.writeln("    - " + dart.strSafe(dart.nullCheck(_engine['DomCanvasElementExtension|get#width'](e))) + " x " + dart.strSafe(dart.nullCheck(_engine['DomCanvasElementExtension|get#height'](e))) + " = " + dart.strSafe(pixels) + " pixels");
        return pixels;
      }, T$13.DomCanvasElementToint()))[$fold](T$.int(), 0, dart.fn((total, pixels) => {
        if (total == null) dart.nullFailed(I[312], 294, 21, "total");
        if (pixels == null) dart.nullFailed(I[312], 294, 32, "pixels");
        return dart.notNull(total) + dart.notNull(pixels);
      }, T$.intAndintToint()));
      let physicalScreenWidth = dart.nullCheck(_engine['DomWindowExtension|get#innerWidth'](dart.jsInteropNullCheck(dart.global.window))) * dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio);
      let physicalScreenHeight = dart.nullCheck(_engine['DomWindowExtension|get#innerHeight'](dart.jsInteropNullCheck(dart.global.window))) * dart.notNull(_engine.EngineFlutterDisplay.instance.browserDevicePixelRatio);
      let physicsScreenPixelCount = physicalScreenWidth * physicalScreenHeight;
      let screenPixelRatio = dart.notNull(pixelCount) / physicsScreenPixelCount;
      let screenDescription = "1 screen is " + dart.strSafe(physicalScreenWidth) + " x " + dart.strSafe(physicalScreenHeight) + " = " + dart.strSafe(physicsScreenPixelCount) + " pixels";
      let canvasPixelDescription = dart.str(pixelCount) + " (" + screenPixelRatio[$toStringAsFixed](2) + " x screens";
      t$361752 = buf;
      (() => {
        t$361752.writeln("  Elements: " + dart.str(canvasElements[$length]));
        t$361752.writeln(canvasInfo);
        t$361752.writeln("  Pixels: " + canvasPixelDescription + "; " + screenDescription + ")");
        t$361752.writeln("-----------------------------------------------------------");
        return t$361752;
      })();
      let screenPixelRatioTooHigh = screenPixelRatio > 6;
      if (screenPixelRatioTooHigh) {
        core.print("WARNING: pixel/screen ratio too high (" + screenPixelRatio[$toStringAsFixed](2) + "x)");
      }
      core.print(buf);
    }, T$.VoidTovoid()));
  };
  _engine.debugOverrideWebDecoderExpireDuration = function debugOverrideWebDecoderExpireDuration(override) {
    if (override == null) dart.nullFailed(I[241], 15, 53, "override");
    _engine._kWebDecoderExpireDuration = override;
  };
  _engine.debugRestoreWebDecoderExpireDuration = function debugRestoreWebDecoderExpireDuration() {
    _engine._kWebDecoderExpireDuration = _engine._kDefaultWebDecoderExpireDuration;
  };
  _engine.detectContentType = function detectContentType(data) {
    if (data == null) dart.nullFailed(I[241], 213, 37, "data");
    if (_engine.debugContentTypeDetector != null) {
      return dart.nullCheck(_engine.debugContentTypeDetector)(data);
    }
    L13:
      for (let format of _engine.ImageFileFormat.values) {
        if (dart.notNull(data[$length]) < dart.notNull(format.header[$length])) {
          continue;
        }
        for (let i = 0; i < dart.notNull(format.header[$length]); i = i + 1) {
          let magicByte = format.header[$_get](i);
          if (magicByte == null) {
            continue;
          }
          let headerByte = data[$_get](i);
          if (headerByte != magicByte) {
            continue L13;
          }
        }
        return format.contentType;
      }
    if (dart.test(_engine.isAvif(data))) {
      return "image/avif";
    }
    return null;
  };
  _engine.isAvif = function isAvif(data) {
    if (data == null) dart.nullFailed(I[241], 339, 23, "data");
    L14:
      for (let i = 0; i < 16; i = i + 1) {
        for (let j = 0; j < dart.notNull(_engine._avifSignature[$length]); j = j + 1) {
          if (i + j >= dart.notNull(data[$length])) {
            return false;
          }
          if (data[$_get](i + j) != _engine._avifSignature[$_get](j)) {
            continue L14;
          }
        }
        return true;
      }
    return false;
  };
  _engine._scaledSize = function _scaledSize(width, height, targetWidth, targetHeight) {
    if (width == null) dart.nullFailed(I[241], 393, 7, "width");
    if (height == null) dart.nullFailed(I[241], 394, 7, "height");
    if (targetWidth == width && targetHeight == height) {
      return null;
    }
    if (targetWidth == null) {
      if (targetHeight == null || targetHeight == height) {
        return null;
      }
      targetWidth = (dart.notNull(width) * dart.notNull(targetHeight) / dart.notNull(height))[$round]();
    } else if (targetHeight == null) {
      if (targetWidth == targetWidth) {
        return null;
      }
      targetHeight = (dart.notNull(height) * dart.notNull(targetWidth) / dart.notNull(width))[$round]();
    }
    return new ui.Size.new(targetWidth[$toDouble](), targetHeight[$toDouble]());
  };
  _engine.scaleImageIfNeeded = function scaleImageIfNeeded(image, opts) {
    if (image == null) dart.nullFailed(I[241], 419, 12, "image");
    let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
    let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
    let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
    if (allowUpscaling == null) dart.nullFailed(I[241], 422, 8, "allowUpscaling");
    let width = image.width;
    let height = image.height;
    let scaledSize = _engine._scaledSize(width, height, targetWidth, targetHeight);
    if (scaledSize == null) {
      return image;
    }
    if (!dart.test(allowUpscaling) && (dart.notNull(scaledSize.width) > dart.notNull(width) || dart.notNull(scaledSize.height) > dart.notNull(height))) {
      return image;
    }
    let outputRect = new ui.Rect.fromLTWH(0.0, 0.0, scaledSize.width, scaledSize.height);
    let recorder = ui.PictureRecorder.new();
    let canvas = ui.Canvas.new(recorder, outputRect);
    canvas.drawImageRect(image, new ui.Rect.fromLTWH(0.0, 0.0, width[$toDouble](), height[$toDouble]()), outputRect, ui.Paint.new());
    let picture = recorder.endRecording();
    let finalImage = picture.toImageSync(scaledSize.width[$round](), scaledSize.height[$round]());
    picture.dispose();
    image.dispose();
    return finalImage;
  };
  _engine.registerHotRestartListener = function registerHotRestartListener(listener) {
    if (listener == null) dart.nullFailed(I[314], 37, 49, "listener");
    _engine._hotRestartListeners[$add](listener);
  };
  _engine.debugEmulateHotRestart = function debugEmulateHotRestart() {
    while (dart.test(_engine._hotRestartListeners[$isNotEmpty])) {
      let copyOfListeners = _engine._hotRestartListeners[$toList]();
      _engine._hotRestartListeners[$clear]();
      for (let listener of copyOfListeners) {
        listener();
      }
    }
  };
  _engine.debugResetEngineInitializationState = function debugResetEngineInitializationState() {
    _engine._initializationState = _engine.DebugEngineInitializationState.uninitialized;
  };
  _engine.initializeEngineServices = function initializeEngineServices(opts) {
    let assetManager = opts && 'assetManager' in opts ? opts.assetManager : null;
    let jsConfiguration = opts && 'jsConfiguration' in opts ? opts.jsConfiguration : null;
    return async.async(T$.void(), function* initializeEngineServices() {
      if (_engine._initializationState != _engine.DebugEngineInitializationState.uninitialized) {
        if (!dart.dtest((dart.fn(() => {
          dart.throw(new core.StateError.new("Invalid engine initialization state. `initializeEngineServices` was " + "called, but the engine has already started initialization and is " + "currently in state \"" + dart.str(_engine._initializationState) + "\"."));
        }, T$2.VoidToNever())(), dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."))))) dart.assertFailed(null, I[314], 115, 12, "() {\n      throw StateError(\n        'Invalid engine initialization state. `initializeEngineServices` was '\n        'called, but the engine has already started initialization and is '\n        'currently in state \"$_initializationState\".'\n      );\n    }()");
        return;
      }
      _engine._initializationState = _engine.DebugEngineInitializationState.initializingServices;
      _engine.configuration.setUserConfiguration(jsConfiguration);
      developer.registerExtension("ext.flutter.disassemble", dart.fn((_, __) => {
        if (_ == null) dart.nullFailed(I[314], 136, 59, "_");
        if (__ == null) dart.nullFailed(I[314], 136, 62, "__");
        for (let listener of _engine._hotRestartListeners) {
          listener();
        }
        return G.FutureOfServiceExtensionResponse().value(new developer.ServiceExtensionResponse.result("OK"));
      }, T$2.StringAndMapOfString$StringToFutureOfServiceExtensionResponse()));
      if (dart.test(_engine.Profiler.isBenchmarkMode)) {
        _engine.Profiler.ensureInitialized();
      }
      let waitingForAnimation = false;
      _engine.scheduleFrameCallback = dart.fn(() => {
        if (!waitingForAnimation) {
          waitingForAnimation = true;
          _engine['DomWindowExtension|requestAnimationFrame'](dart.jsInteropNullCheck(dart.global.window), dart.fn(highResTime => {
            if (highResTime == null) dart.nullFailed(I[314], 154, 49, "highResTime");
            _engine.FrameTimingRecorder.recordCurrentFrameVsync();
            _engine.FrameTimingRecorder.recordCurrentFrameBuildStart();
            waitingForAnimation = false;
            let highResTimeMicroseconds = (1000 * dart.notNull(js_interop['JSNumberToNumber|get#toDartDouble'](highResTime)))[$toInt]();
            if (_engine.EnginePlatformDispatcher.instance.onBeginFrame != null) {
              _engine.EnginePlatformDispatcher.instance.invokeOnBeginFrame(new core.Duration.new({microseconds: highResTimeMicroseconds}));
            }
            if (_engine.EnginePlatformDispatcher.instance.onDrawFrame != null) {
              _engine.EnginePlatformDispatcher.instance.invokeOnDrawFrame();
            }
          }, T$9.doubleTovoid()));
        }
      }, T$.VoidTovoid());
      assetManager == null ? assetManager = new ui_web.AssetManager.new({assetBase: _engine.configuration.assetBase}) : null;
      _engine._setAssetManager(assetManager);
      function initializeRendererCallback() {
        return async.async(T$.void(), function* initializeRendererCallback() {
          return _engine.renderer.initialize();
        });
      }
      dart.fn(initializeRendererCallback, T$.VoidToFutureOfvoid());
      yield async.Future.wait(T$.void(), G$.JSArrayOfFutureOfvoid().of([initializeRendererCallback(), _engine._downloadAssetFonts()]));
      _engine._initializationState = _engine.DebugEngineInitializationState.initializedServices;
    });
  };
  _engine.initializeEngineUi = function initializeEngineUi() {
    return async.async(T$.void(), function* initializeEngineUi() {
      if (_engine._initializationState != _engine.DebugEngineInitializationState.initializedServices) {
        if (!dart.dtest((dart.fn(() => {
          dart.throw(new core.StateError.new("Invalid engine initialization state. `initializeEngineUi` was " + "called while the engine initialization state was " + "\"" + dart.str(_engine._initializationState) + "\". `initializeEngineUi` can only be called " + "when the engine is in state " + "\"" + dart.str(_engine.DebugEngineInitializationState.initializedServices) + "\"."));
        }, T$2.VoidToNever())(), dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."))))) dart.assertFailed(null, I[314], 210, 12, "() {\n      throw StateError(\n        'Invalid engine initialization state. `initializeEngineUi` was '\n        'called while the engine initialization state was '\n        '\"$_initializationState\". `initializeEngineUi` can only be called '\n        'when the engine is in state '\n        '\"${DebugEngineInitializationState.initializedServices}\".'\n      );\n    }()");
        return;
      }
      _engine._initializationState = _engine.DebugEngineInitializationState.initializingUi;
      _engine.RawKeyboard.initialize({onMacOs: ui_web.browser.operatingSystem == ui_web.OperatingSystem.macOs});
      _engine.KeyboardBinding.initInstance();
      if (!dart.test(_engine.configuration.multiViewEnabled)) {
        let implicitView = _engine.ensureImplicitViewInitialized({hostElement: _engine.configuration.hostElement});
        if (T$11.HtmlRenderer()[_is](_engine.renderer)) {
          _engine.ensureResourceManagerInitialized(implicitView);
        }
      }
      _engine._initializationState = _engine.DebugEngineInitializationState.initialized;
    });
  };
  _engine._setAssetManager = function _setAssetManager(assetManager) {
    if (assetManager == null) dart.nullFailed(I[314], 242, 43, "assetManager");
    if (dart.equals(assetManager, _engine._assetManager)) {
      return;
    }
    _engine._assetManager = assetManager;
  };
  _engine._downloadAssetFonts = function _downloadAssetFonts() {
    return async.async(T$.void(), function* _downloadAssetFonts() {
      _engine.renderer.fontCollection.clear();
      if (dart.test(ui_web.debugEmulateFlutterTesterEnvironment)) {
        yield _engine.renderer.fontCollection.loadFontFromList(_web_test_fonts.EmbeddedTestFont.flutterTest.data, {fontFamily: _web_test_fonts.EmbeddedTestFont.flutterTest.fontFamily});
      }
      if (_engine._debugAssetManager != null || _engine._assetManager != null) {
        yield _engine.renderer.fontCollection.loadAssetFonts(yield _engine.fetchFontManifest(ui_web.assetManager));
      }
    });
  };
  _engine['JsFlutterViewOptionsExtension|get#hostElement'] = function JsFlutterViewOptionsExtension$124get$35hostElement($this) {
    if ($this == null) dart.nullFailed(I[315], 20, 18, "#this");
    if (!(js_util.getProperty(T$9.DomElementN(), $this, "hostElement") != null)) dart.assertFailed("`hostElement` passed to addView cannot be null.", I[315], 21, 13, "_hostElement != null");
    return dart.nullCheck(js_util.getProperty(T$9.DomElementN(), $this, "hostElement"));
  };
  _engine['JsFlutterViewOptionsExtension|get#viewConstraints'] = function JsFlutterViewOptionsExtension$124get$35viewConstraints($this) {
    if ($this == null) dart.nullFailed(I[315], 27, 26, "#this");
    return js_util.getProperty(T$12.JsViewConstraintsN(), $this, "viewConstraints");
  };
  _engine['FlutterLoaderExtension|get#isAutoStart'] = function FlutterLoaderExtension$124get$35isAutoStart($this) {
    if ($this == null) dart.nullFailed(I[316], 28, 12, "#this");
    return !dart.test(js_util.hasProperty($this, "didCreateEngineInitializer"));
  };
  _engine.createPromise = function createPromise(executor) {
    if (executor == null) dart.nullFailed(I[399], 17, 44, "executor");
    return T$3.JSObject()[_as](new (dart.jsInteropNullCheck(dart.global.Promise))(executor));
  };
  _engine.futureToPromise = function futureToPromise(T, future) {
    if (future == null) dart.nullFailed(I[399], 24, 63, "future");
    return _engine.createPromise(js_util._functionToJS2(dart.fn((resolver, rejecter) => {
      if (resolver == null) dart.nullFailed(I[399], 25, 36, "resolver");
      if (rejecter == null) dart.nullFailed(I[399], 25, 57, "rejecter");
      future.then(T$.void(), dart.fn(value => resolver.call(null, value), T[_eval]("~(0)")), {onError: dart.fn(error => {
          _engine.printWarning("Rejecting promise with error: " + dart.str(error));
          rejecter.call(null, null);
        }, T$.ObjectNToNull())});
    }, T$3.JavaScriptFunctionAndJavaScriptFunctionToNull())));
  };
  _engine.createUint8ArrayFromBuffer = function createUint8ArrayFromBuffer(buffer) {
    if (buffer == null) dart.nullFailed(I[400], 27, 55, "buffer");
    return T$3.NativeUint8List()[_as](T$13.JSUint8Array1()[_as](new dart.global.Uint8Array(buffer)));
  };
  _engine.createUint8ArrayFromSubBuffer = function createUint8ArrayFromSubBuffer(buffer, start, length) {
    if (buffer == null) dart.nullFailed(I[400], 31, 17, "buffer");
    if (start == null) dart.nullFailed(I[400], 32, 7, "start");
    if (length == null) dart.nullFailed(I[400], 33, 7, "length");
    return T$3.NativeUint8List()[_as](T$13.JSUint8Array1()[_as](new dart.global.Uint8Array(buffer, js_interop['NumToJSExtension|get#toJS'](start), js_interop['NumToJSExtension|get#toJS'](length))));
  };
  _engine.createUint8ArrayFromLength = function createUint8ArrayFromLength(length) {
    if (length == null) dart.nullFailed(I[400], 36, 45, "length");
    return T$3.NativeUint8List()[_as](T$13.JSUint8Array1()[_as](new dart.global.Uint8Array(js_interop['NumToJSExtension|get#toJS'](length))));
  };
  _engine._eventTimeStampToDuration = function _eventTimeStampToDuration(milliseconds) {
    if (milliseconds == null) dart.nullFailed(I[317], 79, 40, "milliseconds");
    let ms = milliseconds[$toInt]();
    let micro = ((dart.notNull(milliseconds) - ms) * 1000)[$toInt]();
    return new core.Duration.new({milliseconds: ms, microseconds: micro});
  };
  _engine._cached = function _cached(T, body) {
    if (body == null) dart.nullFailed(I[317], 87, 42, "body");
    let cache = null;
    return dart.fn(() => {
      let t$361755;
      t$361755 = cache;
      return t$361755 == null ? cache = body() : t$361755;
    }, T[_eval]("0()"));
  };
  _engine.createHistoryForExistingState = function createHistoryForExistingState(urlStrategy) {
    if (urlStrategy != null) {
      let state = urlStrategy.getState();
      if (dart.test(_engine.SingleEntryBrowserHistory._isOriginEntry(state)) || dart.test(_engine.SingleEntryBrowserHistory._isFlutterEntry(state))) {
        return new _engine.SingleEntryBrowserHistory.new({urlStrategy: urlStrategy});
      }
    }
    return new _engine.MultiEntriesBrowserHistory.new({urlStrategy: urlStrategy});
  };
  _engine.printOnScreen = function printOnScreen(object) {
    let t$361755;
    if (object == null) dart.nullFailed(I[324], 31, 27, "object");
    if (_engine._logElement == null) {
      _engine._initialize();
    }
    let message = dart.str(object);
    if (dart.test(_engine._logBuffer[$isNotEmpty]) && _engine._logBuffer[$last].message === message) {
      t$361755 = _engine._logBuffer[$last];
      t$361755.duplicateCount = dart.notNull(t$361755.duplicateCount) + 1;
    } else {
      _engine._logBuffer[$add](new _engine._LogMessage.new(message));
    }
    if (dart.notNull(_engine._logBuffer[$length]) > 80) {
      _engine._logBuffer = _engine._logBuffer[$sublist](dart.notNull(_engine._logBuffer[$length]) - 50);
    }
    _engine['DomNodeExtension|set#text'](_engine._logContainer, _engine._logBuffer[$join]("\n"));
    core.print(message);
  };
  _engine._initialize = function _initialize() {
    let t$361755, t$361755$;
    _engine._logElement = _engine.createDomElement("flt-onscreen-log");
    _engine['DomElementExtension|setAttribute'](dart.nullCheck(_engine._logElement), "aria-hidden", "true");
    t$361755 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(_engine._logElement), "style");
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#position'](t$361755, "fixed");
      _engine['DomCSSStyleDeclarationExtension|set#left'](t$361755, "0");
      _engine['DomCSSStyleDeclarationExtension|set#right'](t$361755, "0");
      _engine['DomCSSStyleDeclarationExtension|set#bottom'](t$361755, "0");
      _engine['DomCSSStyleDeclarationExtension|set#height'](t$361755, "25%");
      _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$361755, "rgba(0, 0, 0, 0.85)");
      _engine['DomCSSStyleDeclarationExtension|set#color'](t$361755, "white");
      _engine['DomCSSStyleDeclarationExtension|set#fontSize'](t$361755, "8px");
      _engine['DomCSSStyleDeclarationExtension|set#whiteSpace'](t$361755, "pre-wrap");
      _engine['DomCSSStyleDeclarationExtension|set#overflow'](t$361755, "hidden");
      _engine['DomCSSStyleDeclarationExtension|set#zIndex'](t$361755, "1000");
      return t$361755;
    })();
    _engine._logContainer = _engine.createDomElement("flt-log-container");
    _engine['DomElementExtension|setAttribute'](_engine._logContainer, "aria-hidden", "true");
    t$361755$ = js_util.getProperty(T$9.DomCSSStyleDeclaration(), _engine._logContainer, "style");
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#position'](t$361755$, "absolute");
      _engine['DomCSSStyleDeclarationExtension|set#bottom'](t$361755$, "0");
      return t$361755$;
    })();
    dart.nullCheck(_engine._logElement).append(_engine._logContainer);
    dart.nullCheck(js_util.getProperty(T$10.DomHTMLBodyElementN(), dart.jsInteropNullCheck(dart.global.document), "body")).append(dart.nullCheck(_engine._logElement));
  };
  _engine.debugPrintStack = function debugPrintStack(opts) {
    let label = opts && 'label' in opts ? opts.label : null;
    let maxFrames = opts && 'maxFrames' in opts ? opts.maxFrames : null;
    if (label != null) {
      core.print(label);
    }
    let lines = dart.toString(core.StackTrace.current)[$trimRight]()[$split]("\n");
    if (maxFrames != null) {
      lines = lines[$take](maxFrames);
    }
    core.print(_engine.defaultStackFilter(lines)[$join]("\n"));
  };
  _engine.defaultStackFilter = function defaultStackFilter(frames) {
    let t$361755;
    if (frames == null) dart.nullFailed(I[324], 107, 54, "frames");
    let filteredPackages = C[1085] || CT.C1085;
    let stackParser = core.RegExp.new("^#[0-9]+ +([^.]+).* \\(([^/\\\\]*)[/\\\\].+:[0-9]+(?::[0-9]+)?\\)$");
    let packageParser = core.RegExp.new("^([^:]+):(.+)$");
    let result = G.JSArrayOfString().of([]);
    let skipped = G.JSArrayOfString().of([]);
    for (let line of frames) {
      let match = stackParser.firstMatch(line);
      if (match != null) {
        if (!(match.groupCount === 2)) dart.assertFailed(null, I[324], 121, 14, "match.groupCount == 2");
        if (dart.test(filteredPackages[$contains](match.group(2)))) {
          let packageMatch = packageParser.firstMatch(dart.nullCheck(match.group(2)));
          if (packageMatch != null && packageMatch.group(1) === "package") {
            skipped[$add]("package " + dart.str(packageMatch.group(2)));
          } else {
            skipped[$add]("package " + dart.str(match.group(2)));
          }
          continue;
        }
      }
      result[$add](line);
    }
    if (skipped[$length] === 1) {
      result[$add]("(elided one frame from " + dart.str(skipped[$single]) + ")");
    } else if (dart.notNull(skipped[$length]) > 1) {
      let where = (t$361755 = G$.LinkedHashSetOfString().from(skipped)[$toList](), (() => {
        t$361755[$sort]();
        return t$361755;
      })());
      if (dart.notNull(where[$length]) > 1) {
        where[$_set](dart.notNull(where[$length]) - 1, "and " + dart.str(where[$last]));
      }
      if (dart.notNull(where[$length]) > 2) {
        result[$add]("(elided " + dart.str(skipped[$length]) + " frames from " + dart.str(where[$join](", ")) + ")");
      } else {
        result[$add]("(elided " + dart.str(skipped[$length]) + " frames from " + dart.str(where[$join](" ")) + ")");
      }
    }
    return result;
  };
  _engine.debugIdentify = function debugIdentify(object) {
    return dart.str(dart.runtimeType(dart.nullCheck(object))) + "(@" + dart.str(dart.hashCode(object)) + ")";
  };
  _engine._handleWebTestEnd2EndMessage = function _handleWebTestEnd2EndMessage(codec, data) {
    if (codec == null) dart.nullFailed(I[325], 1387, 47, "codec");
    let decoded = codec.decodeMethodCall(data);
    let ratio = core.double.parse(T$.String()[_as](decoded.arguments));
    switch (decoded.method) {
      case "setDevicePixelRatio":
        {
          _engine.EngineFlutterDisplay.instance.debugOverrideDevicePixelRatio(ratio);
          dart.nullCheck(_engine.EnginePlatformDispatcher.instance.onMetricsChanged)();
          return true;
        }
    }
    return false;
  };
  _engine.invoke = function invoke(callback, zone) {
    if (callback == null) {
      return;
    }
    if (!(zone != null)) dart.assertFailed(null, I[325], 1405, 10, "zone != null");
    if (zone == async.Zone.current) {
      callback();
    } else {
      dart.nullCheck(zone).runGuarded(callback);
    }
  };
  _engine.invoke1 = function invoke1(A, callback, zone, arg) {
    if (callback == null) {
      return;
    }
    if (!(zone != null)) dart.assertFailed(null, I[325], 1420, 10, "zone != null");
    if (zone == async.Zone.current) {
      callback(arg);
    } else {
      dart.nullCheck(zone).runUnaryGuarded(A, callback, arg);
    }
  };
  _engine.invoke2 = function invoke2(A1, A2, callback, zone, arg1, arg2) {
    if (callback == null) {
      return;
    }
    if (!(zone != null)) dart.assertFailed(null, I[325], 1436, 10, "zone != null");
    if (zone == async.Zone.current) {
      callback(arg1, arg2);
    } else {
      dart.nullCheck(zone).runGuarded(dart.fn(() => {
        callback(arg1, arg2);
      }, T$.VoidTovoid()));
    }
  };
  _engine.invoke3 = function invoke3(A1, A2, A3, callback, zone, arg1, arg2, arg3) {
    if (callback == null) {
      return;
    }
    if (!(zone != null)) dart.assertFailed(null, I[325], 1454, 10, "zone != null");
    if (zone == async.Zone.current) {
      callback(arg1, arg2, arg3);
    } else {
      dart.nullCheck(zone).runGuarded(dart.fn(() => {
        callback(arg1, arg2, arg3);
      }, T$.VoidTovoid()));
    }
  };
  _engine.findBrowserTextScaleFactor = function findBrowserTextScaleFactor() {
    let t$361755;
    let fontSize = (t$361755 = _engine.parseFontSize(dart.nullCheck(js_util.getProperty(T$9.DomElementN(), dart.jsInteropNullCheck(dart.global.document), "documentElement"))), t$361755 == null ? 16 : t$361755);
    return dart.notNull(fontSize) / 16;
  };
  _engine._defaultFactory = function _defaultFactory(viewId, opts) {
    let t$361755;
    if (viewId == null) dart.nullFailed(I[328], 223, 7, "viewId");
    let params = opts && 'params' in opts ? opts.params : null;
    dart.nullCheck(params);
    T$1.MapOfObjectN$ObjectN()[_as](params);
    t$361755 = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), _engine['JsonExtensions|readString'](params, "tagName"));
    return (() => {
      _engine['DomCSSStyleDeclarationExtension|set#width'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$361755, "style"), "100%");
      _engine['DomCSSStyleDeclarationExtension|set#height'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$361755, "style"), "100%");
      return t$361755;
    })();
  };
  _engine.getPlatformViewSlotName = function getPlatformViewSlotName(viewId) {
    if (viewId == null) dart.nullFailed(I[401], 12, 36, "viewId");
    return "flt-pv-slot-" + dart.str(viewId);
  };
  _engine.getPlatformViewDomId = function getPlatformViewDomId(viewId) {
    if (viewId == null) dart.nullFailed(I[401], 18, 33, "viewId");
    return "flt-pv-" + dart.str(viewId);
  };
  _engine.createPlatformViewSlot = function createPlatformViewSlot(viewId) {
    let t$361755, t$361755$, t$361755$0;
    if (viewId == null) dart.nullFailed(I[401], 41, 39, "viewId");
    let slotName = _engine.getPlatformViewSlotName(viewId);
    let wrapper = (t$361755 = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "flt-platform-view-slot"), (() => {
      _engine['DomCSSStyleDeclarationExtension|set#pointerEvents'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$361755, "style"), "auto");
      return t$361755;
    })());
    let slot = (t$361755$ = _engine['DomDocumentExtension|createElement'](dart.jsInteropNullCheck(dart.global.document), "slot"), (() => {
      _engine['DomElementExtension|setAttribute'](t$361755$, "name", slotName);
      return t$361755$;
    })());
    t$361755$0 = wrapper;
    return (() => {
      t$361755$0.append(slot);
      return t$361755$0;
    })();
  };
  _engine._nthButton = function _nthButton(n) {
    if (n == null) dart.nullFailed(I[330], 34, 20, "n");
    return (1)[$leftShift](n);
  };
  _engine.convertButtonToButtons = function convertButtonToButtons(button) {
    if (button == null) dart.nullFailed(I[330], 47, 32, "button");
    if (!(dart.notNull(button) >= 0)) dart.assertFailed("Unexpected negative button " + dart.str(button) + ".", I[330], 48, 10, "button >= 0");
    switch (button) {
      case 0:
        {
          return 1;
        }
      case 1:
        {
          return 4;
        }
      case 2:
        {
          return 2;
        }
      default:
        {
          return _engine._nthButton(button);
        }
    }
  };
  _engine.computeEventOffsetToTarget = function computeEventOffsetToTarget(event, view) {
    if (event == null) dart.nullFailed(I[402], 20, 52, "event");
    if (view == null) dart.nullFailed(I[402], 20, 77, "view");
    let actualTarget = view.dom.rootElement;
    if (dart.test(_engine.EngineSemantics.instance.semanticsEnabled) && _engine['DomMouseEventExtension|get#offsetX'](event) === 0 && _engine['DomMouseEventExtension|get#offsetY'](event) === 0) {
      return _engine._computeOffsetForTalkbackEvent(event, actualTarget);
    }
    let isInput = _engine['DomNodeExtension|contains'](view.dom.textEditingHost, T$9.DomNode()[_as](dart.nullCheck(js_util.getProperty(T$10.DomEventTargetN(), event, "target"))));
    if (dart.test(isInput)) {
      let inputGeometry = _engine.textEditing.strategy.geometry;
      if (inputGeometry != null) {
        return _engine._computeOffsetForInputs(event, inputGeometry);
      }
    }
    let isTargetOutsideOfShadowDOM = !dart.equals(js_util.getProperty(T$10.DomEventTargetN(), event, "target"), actualTarget);
    if (isTargetOutsideOfShadowDOM) {
      let origin = T$12.DomRect()[_as](actualTarget.getBoundingClientRect());
      return new ui.Offset.new(dart.notNull(_engine['DomMouseEventExtension|get#clientX'](event)) - dart.notNull(_engine['DomRectReadOnlyExtension|get#x'](origin)), dart.notNull(_engine['DomMouseEventExtension|get#clientY'](event)) - dart.notNull(_engine['DomRectReadOnlyExtension|get#y'](origin)));
    }
    return new ui.Offset.new(_engine['DomMouseEventExtension|get#offsetX'](event), _engine['DomMouseEventExtension|get#offsetY'](event));
  };
  _engine._computeOffsetForInputs = function _computeOffsetForInputs(event, inputGeometry) {
    if (event == null) dart.nullFailed(I[402], 61, 49, "event");
    if (inputGeometry == null) dart.nullFailed(I[402], 61, 77, "inputGeometry");
    let targetElement = T$10.DomHTMLElement()[_as](dart.nullCheck(js_util.getProperty(T$10.DomEventTargetN(), event, "target")));
    let domElement = _engine.textEditing.strategy.activeDomElement;
    if (!dart.equals(targetElement, domElement)) dart.assertFailed("The targeted input element must be the active input element", I[402], 64, 10, "targetElement == domElement");
    let transformValues = inputGeometry.globalTransform;
    if (!(transformValues[$length] === 16)) dart.assertFailed(null, I[402], 66, 10, "transformValues.length == 16");
    let transform = new _engine.Matrix4.fromFloat32List(transformValues);
    let transformedPoint = transform.perspectiveTransform({x: _engine['DomMouseEventExtension|get#offsetX'](event), y: _engine['DomMouseEventExtension|get#offsetY'](event), z: 0.0});
    return new ui.Offset.new(transformedPoint.x, transformedPoint.y);
  };
  _engine._computeOffsetForTalkbackEvent = function _computeOffsetForTalkbackEvent(event, actualTarget) {
    if (event == null) dart.nullFailed(I[402], 103, 56, "event");
    if (actualTarget == null) dart.nullFailed(I[402], 103, 74, "actualTarget");
    if (!dart.test(_engine.EngineSemantics.instance.semanticsEnabled)) dart.assertFailed(null, I[402], 104, 10, "EngineSemantics.instance.semanticsEnabled");
    let offsetX = _engine['DomMouseEventExtension|get#clientX'](event);
    let offsetY = _engine['DomMouseEventExtension|get#clientY'](event);
    let parent = T$10.DomHTMLElement()[_as](actualTarget);
    while (js_util.getProperty(T$9.DomHTMLElementN(), parent, "offsetParent") != null) {
      offsetX = dart.notNull(offsetX) - (dart.notNull(_engine['DomHTMLElementExtension|get#offsetLeft'](parent)) - dart.notNull(_engine['DomElementExtension|get#scrollLeft'](parent)));
      offsetY = dart.notNull(offsetY) - (dart.notNull(_engine['DomHTMLElementExtension|get#offsetTop'](parent)) - dart.notNull(_engine['DomElementExtension|get#scrollTop'](parent)));
      parent = dart.nullCheck(js_util.getProperty(T$9.DomHTMLElementN(), parent, "offsetParent"));
    }
    return new ui.Offset.new(offsetX, offsetY);
  };
  _engine.timeAction = function timeAction(R, name, action) {
    let t$361755;
    if (name == null) dart.nullFailed(I[332], 39, 24, "name");
    if (action == null) dart.nullFailed(I[332], 39, 40, "action");
    if (!dart.test(_engine.Profiler.isBenchmarkMode)) {
      return action();
    } else {
      let stopwatch = (t$361755 = new core.Stopwatch.new(), (() => {
        t$361755.start();
        return t$361755;
      })());
      let result = action();
      stopwatch.stop();
      _engine.Profiler.instance.benchmark(name, stopwatch.elapsedMicroseconds[$toDouble]());
      return result;
    }
  };
  _engine._getMetaState = function _getMetaState(event) {
    if (event == null) dart.nullFailed(I[333], 183, 44, "event");
    let metaState = 0;
    if (dart.test(event.getModifierState("Shift"))) {
      metaState = (metaState | 1) >>> 0;
    }
    if (dart.test(event.getModifierState("Alt")) || dart.test(event.getModifierState("AltGraph"))) {
      metaState = (metaState | 2) >>> 0;
    }
    if (dart.test(event.getModifierState("Control"))) {
      metaState = (metaState | 4) >>> 0;
    }
    if (dart.test(event.getModifierState("Meta"))) {
      metaState = (metaState | 8) >>> 0;
    }
    return metaState;
  };
  _engine._isModifierKey = function _isModifierKey(event) {
    if (event == null) dart.nullFailed(I[333], 215, 46, "event");
    let key = dart.nullCheck(event.key);
    return key === "Meta" || key === "Shift" || key === "Alt" || key === "Control";
  };
  _engine._isAffectedByModifiers = function _isAffectedByModifiers(event) {
    if (event == null) dart.nullFailed(I[333], 223, 54, "event");
    return dart.test(event.ctrlKey) || dart.test(event.shiftKey) || dart.test(event.altKey) || dart.test(event.metaKey);
  };
  _engine._noopCallback = function _noopCallback(data) {
  };
  _engine.hasJsProperty = function hasJsProperty(object, name) {
    if (object == null) dart.nullFailed(I[335], 19, 27, "object");
    if (name == null) dart.nullFailed(I[335], 19, 42, "name");
    return js_util.hasProperty(object, name);
  };
  _engine.getJsProperty = function getJsProperty(T, object, name) {
    if (object == null) dart.nullFailed(I[335], 26, 27, "object");
    if (name == null) dart.nullFailed(I[335], 26, 42, "name");
    return js_util.getProperty(T, object, name);
  };
  _engine.setJsProperty = function setJsProperty(T, object, name, value) {
    if (object == null) dart.nullFailed(I[335], 38, 27, "object");
    if (name == null) dart.nullFailed(I[335], 38, 42, "name");
    if (!dart.test(_engine._safeJsProperties.contains(name))) dart.assertFailed("Attempted to set property \"" + dart.str(name) + "\" on a JavaScript object. This property " + "has not been checked for safety. Possible solutions to this problem:\n" + " - Do not set this property.\n" + " - Use a `js_util` API that does the same thing.\n" + " - Ensure that the property is safe then add it to _safeJsProperties set.", I[335], 40, 5, "_safeJsProperties.contains(name)");
    return js_util.setProperty(T, object, name, value);
  };
  _engine.promiseToFuture = function promiseToFuture$(T, jsPromise) {
    if (jsPromise == null) dart.nullFailed(I[335], 51, 37, "jsPromise");
    return js_util.promiseToFuture(T, jsPromise);
  };
  _engine.parseFloat = function parseFloat$(source) {
    if (source == null) dart.nullFailed(I[335], 61, 24, "source");
    let result = T$3.numN()[_as](dart.jsInteropNullCheck(dart.global.window).parseFloat(source));
    if (result == null || result[$isNaN]) {
      return null;
    }
    return result;
  };
  _engine.parseFontSize = function parseFontSize(element) {
    if (element == null) dart.nullFailed(I[335], 84, 31, "element");
    let fontSize = null;
    if (dart.test(_engine.hasJsProperty(element, "computedStyleMap"))) {
      let computedStyleMap = element.computedStyleMap();
      if (T$.Object()[_is](computedStyleMap)) {
        let fontSizeObject = computedStyleMap.get("font-size");
        if (T$.Object()[_is](fontSizeObject)) {
          fontSize = js_util.getProperty(T$.num(), fontSizeObject, "value");
        }
      }
    }
    if (fontSize == null) {
      let fontSizeString = _engine['DomCSSStyleDeclarationExtension|getPropertyValue'](_engine['DomWindowExtension|getComputedStyle'](dart.jsInteropNullCheck(dart.global.window), element), "font-size");
      fontSize = _engine.parseFloat(fontSizeString);
    }
    return fontSize;
  };
  _engine.vibrate = function vibrate(durationMs) {
    if (durationMs == null) dart.nullFailed(I[335], 111, 18, "durationMs");
    let navigator = js_util.getProperty(T$9.DomNavigator(), dart.jsInteropNullCheck(dart.global.window), "navigator");
    if (dart.test(_engine.hasJsProperty(navigator, "vibrate"))) {
      navigator.vibrate(durationMs);
    }
  };
  _engine.tryCreateCanvasElement = function tryCreateCanvasElement(width, height) {
    if (width == null) dart.nullFailed(I[335], 123, 46, "width");
    if (height == null) dart.nullFailed(I[335], 123, 57, "height");
    let canvas = T$9.DomCanvasElementN()[_as](dart.jsInteropNullCheck(dart.global.document).createElement("CANVAS"));
    if (canvas == null) {
      return null;
    }
    try {
      _engine['DomCanvasElementExtension|set#width'](canvas, width[$toDouble]());
      _engine['DomCanvasElementExtension|set#height'](canvas, height[$toDouble]());
    } catch (t$36$35e) {
      let e = dart.getThrown(t$36$35e);
      if (T$.Object()[_is](e)) {
        return null;
      } else
        throw t$36$35e;
    }
    return canvas;
  };
  _engine.debugResetBrowserSupportsImageDecoder = function debugResetBrowserSupportsImageDecoder() {
    _engine.browserSupportsImageDecoder = _engine._defaultBrowserSupportsImageDecoder;
  };
  _engine['ImageDecoderExtension|get#complete'] = function ImageDecoderExtension$124get$35complete($this) {
    if ($this == null) dart.nullFailed(I[335], 201, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "complete"));
  };
  _engine['DecodeResultExtension|get#complete'] = function DecodeResultExtension$124get$35complete($this) {
    if ($this == null) dart.nullFailed(I[335], 242, 12, "#this");
    return js_interop['JSBooleanToBool|get#toDart'](js_util.getProperty(T$.bool(), $this, "complete"));
  };
  _engine['VideoFrameExtension|allocationSize'] = function VideoFrameExtension$124allocationSize($this) {
    if ($this == null) dart.nullFailed(I[335], 274, 10, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](T$.double()[_as]($this.allocationSize()));
  };
  _engine['VideoFrameExtension|get#allocationSize'] = function VideoFrameExtension$124get$35allocationSize($this) {
    if ($this == null) dart.nullFailed(I[335], 274, 10, "#this");
    return dart.fn(() => _engine['VideoFrameExtension|allocationSize']($this), T$.VoidTodouble());
  };
  _engine['VideoFrameExtension|copyTo'] = function VideoFrameExtension$124copyTo($this, destination) {
    if ($this == null) dart.nullFailed(I[335], 278, 21, "#this");
    if (destination == null) dart.nullFailed(I[335], 278, 35, "destination");
    return T$3.JSObject()[_as]($this.copyTo(_engine['ObjectToJSAnyExtension|get#toJSAnyShallow'](destination)));
  };
  _engine['VideoFrameExtension|get#copyTo'] = function VideoFrameExtension$124get$35copyTo($this) {
    if ($this == null) dart.nullFailed(I[335], 278, 21, "#this");
    return dart.fn(destination => {
      if (destination == null) dart.nullFailed(I[335], 278, 35, "destination");
      return _engine['VideoFrameExtension|copyTo']($this, destination);
    }, T$13.ObjectToJSObject());
  };
  _engine['VideoFrameExtension|get#format'] = function VideoFrameExtension$124get$35format($this) {
    let t$361763;
    if ($this == null) dart.nullFailed(I[335], 283, 15, "#this");
    t$361763 = js_util.getProperty(T$.StringN(), $this, "format");
    return t$361763 == null ? null : js_interop['JSStringToString|get#toDart'](t$361763);
  };
  _engine['VideoFrameExtension|get#codedWidth'] = function VideoFrameExtension$124get$35codedWidth($this) {
    if ($this == null) dart.nullFailed(I[335], 287, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "codedWidth"));
  };
  _engine['VideoFrameExtension|get#codedHeight'] = function VideoFrameExtension$124get$35codedHeight($this) {
    if ($this == null) dart.nullFailed(I[335], 291, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "codedHeight"));
  };
  _engine['VideoFrameExtension|get#displayWidth'] = function VideoFrameExtension$124get$35displayWidth($this) {
    if ($this == null) dart.nullFailed(I[335], 295, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "displayWidth"));
  };
  _engine['VideoFrameExtension|get#displayHeight'] = function VideoFrameExtension$124get$35displayHeight($this) {
    if ($this == null) dart.nullFailed(I[335], 299, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "displayHeight"));
  };
  _engine['VideoFrameExtension|get#duration'] = function VideoFrameExtension$124get$35duration($this) {
    let t$361768;
    if ($this == null) dart.nullFailed(I[335], 303, 15, "#this");
    t$361768 = js_util.getProperty(T$9.doubleN(), $this, "duration");
    return t$361768 == null ? null : js_interop['JSNumberToNumber|get#toDartDouble'](t$361768);
  };
  _engine['ImageTrackExtension|get#repetitionCount'] = function ImageTrackExtension$124get$35repetitionCount($this) {
    if ($this == null) dart.nullFailed(I[335], 337, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "repetitionCount"));
  };
  _engine['ImageTrackExtension|get#frameCount'] = function ImageTrackExtension$124get$35frameCount($this) {
    if ($this == null) dart.nullFailed(I[335], 341, 14, "#this");
    return js_interop['JSNumberToNumber|get#toDartDouble'](js_util.getProperty(T$.double(), $this, "frameCount"));
  };
  _engine.scaleCanvas2D = function scaleCanvas2D(context2d, x, y) {
    if (context2d == null) dart.nullFailed(I[335], 344, 27, "context2d");
    if (x == null) dart.nullFailed(I[335], 344, 42, "x");
    if (y == null) dart.nullFailed(I[335], 344, 49, "y");
    context2d.scale(x, y);
  };
  _engine.drawImageCanvas2D = function drawImageCanvas2D(context2d, imageSource, width, height) {
    if (context2d == null) dart.nullFailed(I[335], 348, 31, "context2d");
    if (imageSource == null) dart.nullFailed(I[335], 348, 49, "imageSource");
    if (width == null) dart.nullFailed(I[335], 348, 66, "width");
    if (height == null) dart.nullFailed(I[335], 348, 77, "height");
    js_util.callMethod(T$.void(), context2d, "drawImage", [imageSource, width, height]);
  };
  _engine.vertexAttribPointerGlContext = function vertexAttribPointerGlContext(glContext, index, size, type, normalized, stride, offset) {
    if (glContext == null) dart.nullFailed(I[335], 357, 10, "glContext");
    if (index == null) dart.nullFailed(I[335], 358, 10, "index");
    if (size == null) dart.nullFailed(I[335], 359, 7, "size");
    if (type == null) dart.nullFailed(I[335], 360, 10, "type");
    if (normalized == null) dart.nullFailed(I[335], 361, 8, "normalized");
    if (stride == null) dart.nullFailed(I[335], 362, 7, "stride");
    if (offset == null) dart.nullFailed(I[335], 363, 7, "offset");
    js_util.callMethod(T$.void(), glContext, "vertexAttribPointer", [index, size, type, normalized, stride, offset]);
  };
  _engine.setupVertexTransforms = function setupVertexTransforms(gl, glProgram, offsetX, offsetY, widthInPixels, heightInPixels, transform) {
    let t$361770;
    if (gl == null) dart.nullFailed(I[335], 866, 15, "gl");
    if (glProgram == null) dart.nullFailed(I[335], 867, 15, "glProgram");
    if (offsetX == null) dart.nullFailed(I[335], 868, 12, "offsetX");
    if (offsetY == null) dart.nullFailed(I[335], 869, 12, "offsetY");
    if (widthInPixels == null) dart.nullFailed(I[335], 870, 12, "widthInPixels");
    if (heightInPixels == null) dart.nullFailed(I[335], 871, 12, "heightInPixels");
    if (transform == null) dart.nullFailed(I[335], 872, 13, "transform");
    let transformUniform = gl.getUniformLocation(glProgram.program, "u_ctransform");
    let transformAtOffset = (t$361770 = transform.clone(), (() => {
      t$361770.translate(-dart.notNull(offsetX), -dart.notNull(offsetY));
      return t$361770;
    })());
    gl.setUniformMatrix4fv(transformUniform, false, transformAtOffset.storage);
    let resolution = gl.getUniformLocation(glProgram.program, "u_scale");
    gl.setUniform4f(resolution, 2.0 / dart.notNull(widthInPixels), -2.0 / dart.notNull(heightInPixels), 1.0, 1.0);
    let shift = gl.getUniformLocation(glProgram.program, "u_shift");
    gl.setUniform4f(shift, -1.0, 1.0, 0.0, 0.0);
  };
  _engine.setupTextureTransform = function setupTextureTransform(gl, glProgram, offsetx, offsety, sx, sy) {
    if (gl == null) dart.nullFailed(I[335], 889, 15, "gl");
    if (glProgram == null) dart.nullFailed(I[335], 889, 29, "glProgram");
    if (offsetx == null) dart.nullFailed(I[335], 889, 47, "offsetx");
    if (offsety == null) dart.nullFailed(I[335], 889, 63, "offsety");
    if (sx == null) dart.nullFailed(I[335], 889, 79, "sx");
    if (sy == null) dart.nullFailed(I[335], 889, 90, "sy");
    let scalar = gl.getUniformLocation(glProgram.program, "u_textransform");
    gl.setUniform4f(scalar, sx, sy, offsetx, offsety);
  };
  _engine.bufferVertexData = function bufferVertexData(gl, positions, devicePixelRatio) {
    if (gl == null) dart.nullFailed(I[335], 894, 33, "gl");
    if (positions == null) dart.nullFailed(I[335], 894, 49, "positions");
    if (devicePixelRatio == null) dart.nullFailed(I[335], 895, 12, "devicePixelRatio");
    if (devicePixelRatio === 1.0) {
      gl.bufferData(positions, gl.kStaticDraw);
    } else {
      let length = positions[$length];
      let scaledList = _native_typed_data.NativeFloat32List.new(length);
      for (let i = 0; i < dart.notNull(length); i = i + 1) {
        scaledList[$_set](i, dart.notNull(positions[$_get](i)) * dart.notNull(devicePixelRatio));
      }
      gl.bufferData(scaledList, gl.kStaticDraw);
    }
  };
  _engine.tileModeToGlWrapping = function tileModeToGlWrapping(gl, tileMode) {
    if (gl == null) dart.nullFailed(I[335], 908, 40, "gl");
    if (tileMode == null) dart.nullFailed(I[335], 908, 56, "tileMode");
    switch (tileMode) {
      case C[586] || CT.C586:
        {
          return gl.kClampToEdge;
        }
      case C[803] || CT.C803:
        {
          return gl.kClampToEdge;
        }
      case C[802] || CT.C802:
        {
          return gl.kMirroredRepeat;
        }
      case C[801] || CT.C801:
        {
          return gl.kRepeat;
        }
      default:
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
    }
  };
  _engine.setLiveMessageDurationForTest = function setLiveMessageDurationForTest(duration) {
    if (duration == null) dart.nullFailed(I[338], 25, 45, "duration");
    _engine.liveMessageDuration = duration;
  };
  _engine._checkableKindFromSemanticsFlag = function _checkableKindFromSemanticsFlag(semanticsObject) {
    if (semanticsObject == null) dart.nullFailed(I[339], 32, 21, "semanticsObject");
    if (dart.test(semanticsObject.hasFlag(ui.SemanticsFlag.isInMutuallyExclusiveGroup))) {
      return _engine._CheckableKind.radio;
    } else if (dart.test(semanticsObject.hasFlag(ui.SemanticsFlag.hasToggledState))) {
      return _engine._CheckableKind.toggle;
    } else {
      return _engine._CheckableKind.checkbox;
    }
  };
  _engine.computeDomSemanticsLabel = function computeDomSemanticsLabel(opts) {
    let tooltip = opts && 'tooltip' in opts ? opts.tooltip : null;
    let label = opts && 'label' in opts ? opts.label : null;
    let hint = opts && 'hint' in opts ? opts.hint : null;
    let value = opts && 'value' in opts ? opts.value : null;
    let labelHintValue = _engine._computeLabelHintValue({label: label, hint: hint, value: value});
    if (tooltip == null && labelHintValue == null) {
      return null;
    }
    let combinedValue = new core.StringBuffer.new();
    if (tooltip != null) {
      combinedValue.write(tooltip);
      if (labelHintValue != null) {
        combinedValue.writeln();
      }
    }
    if (labelHintValue != null) {
      combinedValue.write(labelHintValue);
    }
    return dart.test(combinedValue.isNotEmpty) ? dart.toString(combinedValue) : null;
  };
  _engine._computeLabelHintValue = function _computeLabelHintValue(opts) {
    let label = opts && 'label' in opts ? opts.label : null;
    let hint = opts && 'hint' in opts ? opts.hint : null;
    let value = opts && 'value' in opts ? opts.value : null;
    let combinedValue = G.JSArrayOfStringN().of([label, hint, value])[$whereType](T$.String())[$where](dart.fn(element => {
      if (element == null) dart.nullFailed(I[346], 554, 20, "element");
      return element[$trim]()[$isNotEmpty];
    }, T$.StringTobool()))[$join](" ");
    return combinedValue[$isNotEmpty] ? combinedValue : null;
  };
  _engine.longestIncreasingSubsequence = function longestIncreasingSubsequence(list) {
    if (list == null) dart.nullFailed(I[340], 2592, 50, "list");
    let len = list[$length];
    let predecessors = G.JSArrayOfint().of([]);
    let mins = G.JSArrayOfint().of([0]);
    let longest = 0;
    for (let i = 0; i < dart.notNull(len); i = i + 1) {
      let elem = list[$_get](i);
      let lo = 1;
      let hi = longest;
      while (lo <= hi) {
        let mid = ((lo + hi) / 2)[$truncate]();
        if (dart.notNull(list[$_get](mins[$_get](mid))) < dart.notNull(elem)) {
          lo = mid + 1;
        } else {
          hi = mid - 1;
        }
      }
      let expansionIndex = lo;
      predecessors[$add](mins[$_get](expansionIndex - 1));
      if (expansionIndex >= dart.notNull(mins[$length])) {
        mins[$add](i);
      } else {
        mins[$_set](expansionIndex, i);
      }
      if (expansionIndex > longest) {
        longest = expansionIndex;
      }
    }
    let seq = G$.ListOfint().filled(longest, 0);
    let k = mins[$_get](longest);
    for (let i = longest - 1; i >= 0; i = i - 1) {
      seq[$_set](i, k);
      k = predecessors[$_get](k);
    }
    return seq;
  };
  _engine.uniformTypeFromJson = function uniformTypeFromJson(value) {
    if (value == null) dart.nullFailed(I[360], 128, 38, "value");
    switch (value) {
      case 0:
        {
          return _engine.UniformType.Boolean;
        }
      case 1:
        {
          return _engine.UniformType.SByte;
        }
      case 2:
        {
          return _engine.UniformType.UByte;
        }
      case 3:
        {
          return _engine.UniformType.Short;
        }
      case 4:
        {
          return _engine.UniformType.UShort;
        }
      case 5:
        {
          return _engine.UniformType.Int;
        }
      case 6:
        {
          return _engine.UniformType.Uint;
        }
      case 7:
        {
          return _engine.UniformType.Int64;
        }
      case 8:
        {
          return _engine.UniformType.Uint64;
        }
      case 9:
        {
          return _engine.UniformType.Half;
        }
      case 10:
        {
          return _engine.UniformType.Float;
        }
      case 11:
        {
          return _engine.UniformType.Double;
        }
      case 12:
        {
          return _engine.UniformType.SampledImage;
        }
    }
    return null;
  };
  _engine.computeShadowOffset = function computeShadowOffset(elevation) {
    if (elevation == null) dart.nullFailed(I[361], 50, 38, "elevation");
    if (elevation === 0.0) {
      return ui.Offset.zero;
    }
    let dx = - -200 * dart.notNull(elevation) / 600;
    let dy = - -400 * dart.notNull(elevation) / 600;
    return new ui.Offset.new(dx, dy);
  };
  _engine.computePenumbraBounds = function computePenumbraBounds(shape, elevation) {
    if (shape == null) dart.nullFailed(I[361], 62, 39, "shape");
    if (elevation == null) dart.nullFailed(I[361], 62, 53, "elevation");
    if (elevation === 0.0) {
      return shape;
    }
    let tx = (800 + dart.notNull(shape.width) * 0.5) / 600;
    let ty = (800 + dart.notNull(shape.height) * 0.5) / 600;
    let dx = dart.notNull(elevation) * tx;
    let dy = dart.notNull(elevation) * ty;
    let offset = _engine.computeShadowOffset(elevation);
    let bounds = new ui.Rect.fromLTRB(dart.notNull(shape.left) - dx, dart.notNull(shape.top) - dy, dart.notNull(shape.right) + dx, dart.notNull(shape.bottom) + dy).shift(offset);
    return bounds.inflate(20.0);
  };
  _engine.computeShadow = function computeShadow(shape, elevation) {
    if (shape == null) dart.nullFailed(I[361], 118, 42, "shape");
    if (elevation == null) dart.nullFailed(I[361], 118, 56, "elevation");
    if (elevation === 0.0) {
      return null;
    }
    let penumbraTangentX = (800 + dart.notNull(shape.width) * 0.5) / 600;
    let penumbraTangentY = (800 + dart.notNull(shape.height) * 0.5) / 600;
    let penumbraWidth = dart.notNull(elevation) * penumbraTangentX;
    let penumbraHeight = dart.notNull(elevation) * penumbraTangentY;
    return new _engine.SurfaceShadowData.new({blurWidth: math.min(T$.double(), penumbraWidth, penumbraHeight), offset: _engine.computeShadowOffset(elevation)});
  };
  _engine.applyCssShadow = function applyCssShadow(element, shape, elevation, color) {
    if (shape == null) dart.nullFailed(I[361], 140, 34, "shape");
    if (elevation == null) dart.nullFailed(I[361], 140, 48, "elevation");
    if (color == null) dart.nullFailed(I[361], 140, 68, "color");
    let shadow = _engine.computeShadow(shape, elevation);
    if (shadow == null) {
      _engine['DomCSSStyleDeclarationExtension|set#boxShadow'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(element), "style"), "none");
    } else {
      color = _engine.toShadowColor(color);
      _engine['DomCSSStyleDeclarationExtension|set#boxShadow'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(element), "style"), dart.str(shadow.offset.dx) + "px " + dart.str(shadow.offset.dy) + "px " + dart.str(shadow.blurWidth) + "px 0px rgba(" + dart.str(color.red) + ", " + dart.str(color.green) + ", " + dart.str(color.blue) + ", " + dart.strSafe(dart.notNull(color.alpha) / 255) + ")");
    }
  };
  _engine.toShadowColor = function toShadowColor(color) {
    if (color == null) dart.nullFailed(I[361], 158, 33, "color");
    let reducedAlpha = (0.3 * dart.notNull(color.alpha))[$round]();
    return new ui.Color.new(((reducedAlpha & 255) << 24 | dart.notNull(color.value) & 16777215) >>> 0);
  };
  _engine.createSVGElement = function createSVGElement(tag) {
    if (tag == null) dart.nullFailed(I[403], 12, 36, "tag");
    return T$9.SVGElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", tag));
  };
  _engine.createSVGSVGElement = function createSVGSVGElement() {
    let el = _engine.createSVGElement("svg");
    _engine['DomElementExtension|setAttribute'](el, "version", "1.1");
    return T$10.SVGSVGElement()[_as](el);
  };
  _engine.createSVGClipPathElement = function createSVGClipPathElement() {
    return T$13.SVGClipPathElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", "clipPath"));
  };
  _engine.createSVGDefsElement = function createSVGDefsElement() {
    return T$13.SVGDefsElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", "defs"));
  };
  _engine.createSVGPathElement = function createSVGPathElement() {
    return T$13.SVGPathElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", "path"));
  };
  _engine.createSVGFilterElement = function createSVGFilterElement() {
    return T$10.SVGFilterElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", "filter"));
  };
  _engine['SVGLengthExtension|set#valueAsString'] = function SVGLengthExtension$124set$35valueAsString($this, value) {
    let t$361771, t$361771$;
    if ($this == null) dart.nullFailed(I[403], 95, 7, "#this");
    t$361771$ = (t$361771 = value, t$361771 == null ? null : js_interop['StringToJSString|get#toJS'](t$361771));
    $this.valueAsString = t$361771$;
    return t$361771$;
  };
  _engine['SVGLengthExtension|newValueSpecifiedUnits'] = function SVGLengthExtension$124newValueSpecifiedUnits($this, unitType, valueInSpecifiedUnits) {
    if ($this == null) dart.nullFailed(I[403], 99, 8, "#this");
    if (unitType == null) dart.nullFailed(I[403], 99, 35, "unitType");
    if (valueInSpecifiedUnits == null) dart.nullFailed(I[403], 99, 49, "valueInSpecifiedUnits");
    return $this.newValueSpecifiedUnits(js_interop['NumToJSExtension|get#toJS'](unitType), js_interop['NumToJSExtension|get#toJS'](valueInSpecifiedUnits));
  };
  _engine['SVGLengthExtension|get#newValueSpecifiedUnits'] = function SVGLengthExtension$124get$35newValueSpecifiedUnits($this) {
    if ($this == null) dart.nullFailed(I[403], 99, 8, "#this");
    return dart.fn((unitType, valueInSpecifiedUnits) => {
      if (unitType == null) dart.nullFailed(I[403], 99, 35, "unitType");
      if (valueInSpecifiedUnits == null) dart.nullFailed(I[403], 99, 49, "valueInSpecifiedUnits");
      return _engine['SVGLengthExtension|newValueSpecifiedUnits']($this, unitType, valueInSpecifiedUnits);
    }, T$7.intAndnumTovoid());
  };
  _engine['SVGAnimatedEnumerationExtenson|set#baseVal'] = function SVGAnimatedEnumerationExtenson$124set$35baseVal($this, value) {
    let t$361774, t$361774$;
    if ($this == null) dart.nullFailed(I[403], 112, 7, "#this");
    t$361774$ = (t$361774 = value, t$361774 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$361774));
    $this.baseVal = t$361774$;
    return t$361774$;
  };
  _engine.createSVGFEColorMatrixElement = function createSVGFEColorMatrixElement() {
    return T$13.SVGFEColorMatrixElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", "feColorMatrix"));
  };
  _engine.createSVGFEFloodElement = function createSVGFEFloodElement() {
    return T$13.SVGFEFloodElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", "feFlood"));
  };
  _engine.createSVGFEBlendElement = function createSVGFEBlendElement() {
    return T$13.SVGFEBlendElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", "feBlend"));
  };
  _engine.createSVGFEImageElement = function createSVGFEImageElement() {
    return T$13.SVGFEImageElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", "feImage"));
  };
  _engine.createSVGFECompositeElement = function createSVGFECompositeElement() {
    return T$13.SVGFECompositeElement()[_as](_engine['DomDocumentExtension|createElementNS'](dart.jsInteropNullCheck(dart.global.document), "http://www.w3.org/2000/svg", "feComposite"));
  };
  _engine['SVGAnimatedStringExtension|set#baseVal'] = function SVGAnimatedStringExtension$124set$35baseVal($this, value) {
    let t$361775, t$361775$;
    if ($this == null) dart.nullFailed(I[403], 198, 7, "#this");
    t$361775$ = (t$361775 = value, t$361775 == null ? null : js_interop['StringToJSString|get#toJS'](t$361775));
    $this.baseVal = t$361775$;
    return t$361775$;
  };
  _engine['SVGAnimatedNumberExtension|set#baseVal'] = function SVGAnimatedNumberExtension$124set$35baseVal($this, value) {
    let t$361776, t$361776$;
    if ($this == null) dart.nullFailed(I[403], 208, 7, "#this");
    t$361776$ = (t$361776 = value, t$361776 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$361776));
    $this.baseVal = t$361776$;
    return t$361776$;
  };
  _engine['SVGNumberExtension|set#value'] = function SVGNumberExtension$124set$35value($this, v) {
    let t$361777, t$361777$;
    if ($this == null) dart.nullFailed(I[403], 234, 7, "#this");
    t$361777$ = (t$361777 = v, t$361777 == null ? null : js_interop['NumToJSExtension|get#toJS'](t$361777));
    $this.value = t$361777$;
    return t$361777$;
  };
  _engine._positionSpanElement = function _positionSpanElement(element, line, fragment) {
    let t$361777;
    if (element == null) dart.nullFailed(I[363], 306, 38, "element");
    if (line == null) dart.nullFailed(I[363], 306, 61, "line");
    if (fragment == null) dart.nullFailed(I[363], 306, 82, "fragment");
    let boxRect = fragment.toPaintingTextBox().toRect();
    t$361777 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#position'](t$361777, "absolute");
      _engine['DomCSSStyleDeclarationExtension|set#top'](t$361777, dart.str(boxRect.top) + "px");
      _engine['DomCSSStyleDeclarationExtension|set#left'](t$361777, dart.str(boxRect.left) + "px");
      _engine['DomCSSStyleDeclarationExtension|set#width'](t$361777, dart.str(boxRect.width) + "px");
      _engine['DomCSSStyleDeclarationExtension|set#lineHeight'](t$361777, dart.str(boxRect.height) + "px");
      return t$361777;
    })();
  };
  _engine.ensureLineLookupInitialized = function ensureLineLookupInitialized() {
    let t$361777;
    t$361777 = _engine._lineLookup;
    return t$361777 == null ? _engine._lineLookup = G$.UnicodePropertyLookupOfLineCharProperty().fromPackedData(_web_unicode.packedLineBreakProperties, 937, _web_unicode.LineCharProperty.values, _web_unicode.defaultLineCharProperty) : t$361777;
  };
  _engine.breakLinesUsingV8BreakIterator = function breakLinesUsingV8BreakIterator(text, jsText, iterator) {
    if (text == null) dart.nullFailed(I[369], 76, 63, "text");
    if (jsText == null) dart.nullFailed(I[369], 76, 78, "jsText");
    if (iterator == null) dart.nullFailed(I[369], 76, 105, "iterator");
    let breaks = G$.JSArrayOfLineBreakFragment().of([]);
    let fragmentStart = 0;
    iterator.adoptText(jsText);
    _engine['DomV8BreakIteratorExtension|first'](iterator);
    while (_engine['DomV8BreakIteratorExtension|next'](iterator) !== -1) {
      let fragmentEnd = _engine['DomV8BreakIteratorExtension|current'](iterator)[$toInt]();
      let trailingNewlines = 0;
      let trailingSpaces = 0;
      for (let i = fragmentStart; i < fragmentEnd; i = i + 1) {
        let codeUnit = text[$codeUnitAt](i);
        if (dart.test(_engine._kNewlines.contains(codeUnit))) {
          trailingNewlines = trailingNewlines + 1;
          trailingSpaces = trailingSpaces + 1;
        } else if (dart.test(_engine._kSpaces.contains(codeUnit))) {
          trailingSpaces = trailingSpaces + 1;
        } else {
          if (trailingSpaces > 0) {
            breaks[$add](new _engine.LineBreakFragment.new(fragmentStart, i, _engine.LineBreakType.opportunity, {trailingNewlines: trailingNewlines, trailingSpaces: trailingSpaces}));
            fragmentStart = i;
            trailingNewlines = 0;
            trailingSpaces = 0;
          }
        }
      }
      let type = null;
      if (trailingNewlines > 0) {
        type = _engine.LineBreakType.mandatory;
      } else if (fragmentEnd === text.length) {
        type = _engine.LineBreakType.endOfText;
      } else {
        type = _engine.LineBreakType.opportunity;
      }
      breaks[$add](new _engine.LineBreakFragment.new(fragmentStart, fragmentEnd, type, {trailingNewlines: trailingNewlines, trailingSpaces: trailingSpaces}));
      fragmentStart = fragmentEnd;
    }
    if (dart.test(breaks[$isEmpty]) || breaks[$last].type == _engine.LineBreakType.mandatory) {
      breaks[$add](new _engine.LineBreakFragment.new(text.length, text.length, _engine.LineBreakType.endOfText, {trailingNewlines: 0, trailingSpaces: 0}));
    }
    return breaks;
  };
  _engine._isHardBreak = function _isHardBreak(prop) {
    return prop == _web_unicode.LineCharProperty.LF || prop == _web_unicode.LineCharProperty.BK;
  };
  _engine._isALorHL = function _isALorHL(prop) {
    return prop == _web_unicode.LineCharProperty.AL || prop == _web_unicode.LineCharProperty.HL;
  };
  _engine._isKoreanSyllable = function _isKoreanSyllable(prop) {
    return prop == _web_unicode.LineCharProperty.JL || prop == _web_unicode.LineCharProperty.JV || prop == _web_unicode.LineCharProperty.JT || prop == _web_unicode.LineCharProperty.H2 || prop == _web_unicode.LineCharProperty.H3;
  };
  _engine._hasEastAsianWidthFWH = function _hasEastAsianWidthFWH(charCode) {
    if (charCode == null) dart.nullFailed(I[369], 193, 32, "charCode");
    return charCode === 9001 || dart.notNull(charCode) >= 12296 && dart.notNull(charCode) <= 12317 || dart.notNull(charCode) >= 65047 && dart.notNull(charCode) <= 65378;
  };
  _engine._isSurrogatePair = function _isSurrogatePair(codePoint) {
    return codePoint != null && dart.notNull(codePoint) > 65535;
  };
  _engine._computeLineBreakFragments = function _computeLineBreakFragments(text) {
    let t$361777;
    if (text == null) dart.nullFailed(I[369], 221, 59, "text");
    let fragments = G$.JSArrayOfLineBreakFragment().of([]);
    let prev2 = null;
    let prev1 = null;
    let codePoint = _engine.getCodePoint(text, 0);
    let curr = _engine.lineLookup.findForChar(codePoint);
    let baseOfCombiningMarks = _web_unicode.LineCharProperty.AL;
    let index = 0;
    let trailingNewlines = 0;
    let trailingSpaces = 0;
    let fragmentStart = 0;
    function setBreak(type, debugRuleNumber) {
      if (type == null) dart.nullFailed(I[369], 241, 31, "type");
      if (debugRuleNumber == null) dart.nullFailed(I[369], 241, 41, "debugRuleNumber");
      let fragmentEnd = type == _engine.LineBreakType.endOfText ? text.length : index;
      if (!(fragmentEnd >= fragmentStart)) dart.assertFailed(null, I[369], 244, 12, "fragmentEnd >= fragmentStart");
      if (prev1 == _web_unicode.LineCharProperty.SP) {
        trailingSpaces = trailingSpaces + 1;
      } else if (dart.test(_engine._isHardBreak(prev1)) || prev1 == _web_unicode.LineCharProperty.CR) {
        trailingNewlines = trailingNewlines + 1;
        trailingSpaces = trailingSpaces + 1;
      }
      if (type == _engine.LineBreakType.prohibited) {
        return;
      }
      fragments[$add](new _engine.LineBreakFragment.new(fragmentStart, fragmentEnd, type, {trailingNewlines: trailingNewlines, trailingSpaces: trailingSpaces}));
      fragmentStart = index;
      trailingNewlines = 0;
      trailingSpaces = 0;
      prev1 = prev2 = null;
    }
    dart.fn(setBreak, T$13.LineBreakTypeAndintTovoid());
    setBreak(_engine.LineBreakType.prohibited, 2);
    index = index + 1;
    let regionalIndicatorCount = 0;
    for (; index <= text.length; index = index + 1) {
      prev2 = prev1;
      prev1 = curr;
      if (dart.test(_engine._isSurrogatePair(codePoint))) {
        setBreak(_engine.LineBreakType.prohibited, -1);
        index = index + 1;
      }
      codePoint = _engine.getCodePoint(text, index);
      curr = _engine.lineLookup.findForChar(codePoint);
      if (prev1 == _web_unicode.LineCharProperty.RI) {
        regionalIndicatorCount = regionalIndicatorCount + 1;
      } else {
        regionalIndicatorCount = 0;
      }
      if (dart.test(_engine._isHardBreak(prev1))) {
        setBreak(_engine.LineBreakType.mandatory, 5);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.CR) {
        if (curr == _web_unicode.LineCharProperty.LF) {
          setBreak(_engine.LineBreakType.prohibited, 5);
        } else {
          setBreak(_engine.LineBreakType.mandatory, 5);
        }
        continue;
      }
      if (dart.test(_engine._isHardBreak(curr)) || curr == _web_unicode.LineCharProperty.CR) {
        setBreak(_engine.LineBreakType.prohibited, 6);
        continue;
      }
      if (index >= text.length) {
        break;
      }
      if (curr == _web_unicode.LineCharProperty.SP || curr == _web_unicode.LineCharProperty.ZW) {
        setBreak(_engine.LineBreakType.prohibited, 7);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.SP) {
        setBreak(_engine.LineBreakType.opportunity, 18);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.ZW) {
        setBreak(_engine.LineBreakType.opportunity, 8);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.ZWJ) {
        setBreak(_engine.LineBreakType.prohibited, 8);
        continue;
      }
      if (prev1 != _web_unicode.LineCharProperty.CM && prev1 != _web_unicode.LineCharProperty.ZWJ) {
        baseOfCombiningMarks = (t$361777 = prev1, t$361777 == null ? _web_unicode.LineCharProperty.AL : t$361777);
      }
      if (curr == _web_unicode.LineCharProperty.CM || curr == _web_unicode.LineCharProperty.ZWJ) {
        if (baseOfCombiningMarks == _web_unicode.LineCharProperty.SP) {
          curr = _web_unicode.LineCharProperty.AL;
        } else {
          curr = baseOfCombiningMarks;
          if (curr == _web_unicode.LineCharProperty.RI) {
            regionalIndicatorCount = regionalIndicatorCount - 1;
          }
          setBreak(_engine.LineBreakType.prohibited, 9);
          continue;
        }
      }
      if (prev1 == _web_unicode.LineCharProperty.CM || prev1 == _web_unicode.LineCharProperty.ZWJ) {
        prev1 = baseOfCombiningMarks;
      }
      if (curr == _web_unicode.LineCharProperty.WJ || prev1 == _web_unicode.LineCharProperty.WJ) {
        setBreak(_engine.LineBreakType.prohibited, 11);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.GL) {
        setBreak(_engine.LineBreakType.prohibited, 12);
        continue;
      }
      if (!(prev1 == _web_unicode.LineCharProperty.SP || prev1 == _web_unicode.LineCharProperty.BA || prev1 == _web_unicode.LineCharProperty.HY) && curr == _web_unicode.LineCharProperty.GL) {
        setBreak(_engine.LineBreakType.prohibited, 12);
        continue;
      }
      if (prev1 != _web_unicode.LineCharProperty.SP && (curr == _web_unicode.LineCharProperty.CL || curr == _web_unicode.LineCharProperty.CP || curr == _web_unicode.LineCharProperty.EX || curr == _web_unicode.LineCharProperty.IS || curr == _web_unicode.LineCharProperty.SY)) {
        setBreak(_engine.LineBreakType.prohibited, 13);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.OP) {
        setBreak(_engine.LineBreakType.prohibited, 14);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.QU && curr == _web_unicode.LineCharProperty.OP) {
        setBreak(_engine.LineBreakType.prohibited, 15);
        continue;
      }
      if ((prev1 == _web_unicode.LineCharProperty.CL || prev1 == _web_unicode.LineCharProperty.CP) && curr == _web_unicode.LineCharProperty.NS) {
        setBreak(_engine.LineBreakType.prohibited, 16);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.B2 && curr == _web_unicode.LineCharProperty.B2) {
        setBreak(_engine.LineBreakType.prohibited, 17);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.QU || curr == _web_unicode.LineCharProperty.QU) {
        setBreak(_engine.LineBreakType.prohibited, 19);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.CB || curr == _web_unicode.LineCharProperty.CB) {
        setBreak(_engine.LineBreakType.opportunity, 20);
        continue;
      }
      if (curr == _web_unicode.LineCharProperty.BA || curr == _web_unicode.LineCharProperty.HY || curr == _web_unicode.LineCharProperty.NS || prev1 == _web_unicode.LineCharProperty.BB) {
        setBreak(_engine.LineBreakType.prohibited, 21);
        continue;
      }
      if (prev2 == _web_unicode.LineCharProperty.HL && (prev1 == _web_unicode.LineCharProperty.HY || prev1 == _web_unicode.LineCharProperty.BA)) {
        setBreak(_engine.LineBreakType.prohibited, 21);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.SY && curr == _web_unicode.LineCharProperty.HL) {
        setBreak(_engine.LineBreakType.prohibited, 21);
        continue;
      }
      if (curr == _web_unicode.LineCharProperty.IN) {
        setBreak(_engine.LineBreakType.prohibited, 22);
        continue;
      }
      if (dart.test(_engine._isALorHL(prev1)) && curr == _web_unicode.LineCharProperty.NU || prev1 == _web_unicode.LineCharProperty.NU && dart.test(_engine._isALorHL(curr))) {
        setBreak(_engine.LineBreakType.prohibited, 23);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.PR && (curr == _web_unicode.LineCharProperty.ID || curr == _web_unicode.LineCharProperty.EB || curr == _web_unicode.LineCharProperty.EM)) {
        setBreak(_engine.LineBreakType.prohibited, 23);
        continue;
      }
      if ((prev1 == _web_unicode.LineCharProperty.ID || prev1 == _web_unicode.LineCharProperty.EB || prev1 == _web_unicode.LineCharProperty.EM) && curr == _web_unicode.LineCharProperty.PO) {
        setBreak(_engine.LineBreakType.prohibited, 23);
        continue;
      }
      if ((prev1 == _web_unicode.LineCharProperty.PR || prev1 == _web_unicode.LineCharProperty.PO) && dart.test(_engine._isALorHL(curr))) {
        setBreak(_engine.LineBreakType.prohibited, 24);
        continue;
      }
      if (dart.test(_engine._isALorHL(prev1)) && (curr == _web_unicode.LineCharProperty.PR || curr == _web_unicode.LineCharProperty.PO)) {
        setBreak(_engine.LineBreakType.prohibited, 24);
        continue;
      }
      if ((prev1 == _web_unicode.LineCharProperty.CL || prev1 == _web_unicode.LineCharProperty.CP || prev1 == _web_unicode.LineCharProperty.NU) && (curr == _web_unicode.LineCharProperty.PO || curr == _web_unicode.LineCharProperty.PR)) {
        setBreak(_engine.LineBreakType.prohibited, 25);
        continue;
      }
      if ((prev1 == _web_unicode.LineCharProperty.PO || prev1 == _web_unicode.LineCharProperty.PR) && curr == _web_unicode.LineCharProperty.OP) {
        setBreak(_engine.LineBreakType.prohibited, 25);
        continue;
      }
      if ((prev1 == _web_unicode.LineCharProperty.PO || prev1 == _web_unicode.LineCharProperty.PR || prev1 == _web_unicode.LineCharProperty.HY || prev1 == _web_unicode.LineCharProperty.IS || prev1 == _web_unicode.LineCharProperty.NU || prev1 == _web_unicode.LineCharProperty.SY) && curr == _web_unicode.LineCharProperty.NU) {
        setBreak(_engine.LineBreakType.prohibited, 25);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.JL && (curr == _web_unicode.LineCharProperty.JL || curr == _web_unicode.LineCharProperty.JV || curr == _web_unicode.LineCharProperty.H2 || curr == _web_unicode.LineCharProperty.H3)) {
        setBreak(_engine.LineBreakType.prohibited, 26);
        continue;
      }
      if ((prev1 == _web_unicode.LineCharProperty.JV || prev1 == _web_unicode.LineCharProperty.H2) && (curr == _web_unicode.LineCharProperty.JV || curr == _web_unicode.LineCharProperty.JT)) {
        setBreak(_engine.LineBreakType.prohibited, 26);
        continue;
      }
      if ((prev1 == _web_unicode.LineCharProperty.JT || prev1 == _web_unicode.LineCharProperty.H3) && curr == _web_unicode.LineCharProperty.JT) {
        setBreak(_engine.LineBreakType.prohibited, 26);
        continue;
      }
      if (dart.test(_engine._isKoreanSyllable(prev1)) && curr == _web_unicode.LineCharProperty.PO) {
        setBreak(_engine.LineBreakType.prohibited, 27);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.PR && dart.test(_engine._isKoreanSyllable(curr))) {
        setBreak(_engine.LineBreakType.prohibited, 27);
        continue;
      }
      if (dart.test(_engine._isALorHL(prev1)) && dart.test(_engine._isALorHL(curr))) {
        setBreak(_engine.LineBreakType.prohibited, 28);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.IS && dart.test(_engine._isALorHL(curr))) {
        setBreak(_engine.LineBreakType.prohibited, 29);
        continue;
      }
      if ((dart.test(_engine._isALorHL(prev1)) || prev1 == _web_unicode.LineCharProperty.NU) && curr == _web_unicode.LineCharProperty.OP && !dart.test(_engine._hasEastAsianWidthFWH(text[$codeUnitAt](index)))) {
        setBreak(_engine.LineBreakType.prohibited, 30);
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.CP && !dart.test(_engine._hasEastAsianWidthFWH(text[$codeUnitAt](index - 1))) && (dart.test(_engine._isALorHL(curr)) || curr == _web_unicode.LineCharProperty.NU)) {
        setBreak(_engine.LineBreakType.prohibited, 30);
        continue;
      }
      if (curr == _web_unicode.LineCharProperty.RI) {
        if (regionalIndicatorCount[$isOdd]) {
          setBreak(_engine.LineBreakType.prohibited, 30);
        } else {
          setBreak(_engine.LineBreakType.opportunity, 30);
        }
        continue;
      }
      if (prev1 == _web_unicode.LineCharProperty.EB && curr == _web_unicode.LineCharProperty.EM) {
        setBreak(_engine.LineBreakType.prohibited, 30);
        continue;
      }
      setBreak(_engine.LineBreakType.opportunity, 31);
    }
    setBreak(_engine.LineBreakType.endOfText, 3);
    return fragments;
  };
  _engine.measureSubstring = function measureSubstring(canvasContext, text, start, end, opts) {
    if (canvasContext == null) dart.nullFailed(I[370], 71, 31, "canvasContext");
    if (text == null) dart.nullFailed(I[370], 72, 10, "text");
    if (start == null) dart.nullFailed(I[370], 73, 7, "start");
    if (end == null) dart.nullFailed(I[370], 74, 7, "end");
    let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
    if (!(0 <= dart.notNull(start))) dart.assertFailed(null, I[370], 77, 10, "0 <= start");
    if (!(dart.notNull(start) <= dart.notNull(end))) dart.assertFailed(null, I[370], 78, 10, "start <= end");
    if (!(dart.notNull(end) <= text.length)) dart.assertFailed(null, I[370], 79, 10, "end <= text.length");
    if (start == end) {
      return 0.0;
    }
    let cssFont = _engine['DomCanvasRenderingContext2DExtension|get#font'](canvasContext);
    let width = null;
    if (start == _engine._lastStart && end == _engine._lastEnd && text == _engine._lastText && cssFont == _engine._lastCssFont) {
      width = _engine._lastWidth;
    } else {
      let sub = start === 0 && end === text.length ? text : text[$substring](start, end);
      width = dart.nullCheck(_engine['DomTextMetricsExtension|get#width'](_engine['DomCanvasRenderingContext2DExtension|measureText'](canvasContext, sub)));
    }
    _engine._lastStart = start;
    _engine._lastEnd = end;
    _engine._lastText = text;
    _engine._lastCssFont = cssFont;
    _engine._lastWidth = width;
    letterSpacing == null ? letterSpacing = 0.0 : null;
    if (letterSpacing !== 0.0) {
      width = dart.notNull(width) + dart.notNull(letterSpacing) * (dart.notNull(end) - dart.notNull(start));
    }
    return _engine._roundWidth(width);
  };
  _engine._roundWidth = function _roundWidth(width) {
    if (width == null) dart.nullFailed(I[370], 122, 27, "width");
    return (dart.notNull(width) * 100)[$round]() / 100;
  };
  _engine['FontStyleExtension|toCssString'] = function FontStyleExtension$124toCssString($this) {
    if ($this == null) dart.nullFailed(I[364], 891, 10, "#this");
    return $this == ui.FontStyle.normal ? "normal" : "italic";
  };
  _engine['FontStyleExtension|get#toCssString'] = function FontStyleExtension$124get$35toCssString($this) {
    if ($this == null) dart.nullFailed(I[364], 891, 10, "#this");
    return dart.fn(() => _engine['FontStyleExtension|toCssString']($this), T$.VoidToString());
  };
  _engine['FontWeightExtension|get#toCssString'] = function FontWeightExtension$124get$35toCssString($this) {
    if ($this == null) dart.nullFailed(I[364], 898, 10, "#this");
    return dart.fn(() => _engine['FontWeightExtension|toCssString']($this), T$.VoidToString());
  };
  _engine['FontWeightExtension|toCssString'] = function FontWeightExtension$124toCssString($this) {
    if ($this == null) dart.nullFailed(I[364], 898, 10, "#this");
    return _engine.fontWeightIndexToCss({fontWeightIndex: $this.index});
  };
  _engine.fontWeightIndexToCss = function fontWeightIndexToCss(opts) {
    let fontWeightIndex = opts && 'fontWeightIndex' in opts ? opts.fontWeightIndex : 3;
    if (fontWeightIndex == null) dart.nullFailed(I[364], 903, 34, "fontWeightIndex");
    switch (fontWeightIndex) {
      case 0:
        {
          return "100";
        }
      case 1:
        {
          return "200";
        }
      case 2:
        {
          return "300";
        }
      case 3:
        {
          return "normal";
        }
      case 4:
        {
          return "500";
        }
      case 5:
        {
          return "600";
        }
      case 6:
        {
          return "bold";
        }
      case 7:
        {
          return "800";
        }
      case 8:
        {
          return "900";
        }
    }
    if (!dart.dtest((dart.fn(() => {
      dart.throw(new core.AssertionError.new("Failed to convert font weight " + dart.str(fontWeightIndex) + " to CSS."));
    }, T$2.VoidToNever())(), dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."))))) dart.assertFailed(null, I[364], 925, 10, "() {\n    throw AssertionError(\n      'Failed to convert font weight $fontWeightIndex to CSS.',\n    );\n  }()");
    return "";
  };
  _engine.applyTextStyleToElement = function applyTextStyleToElement(opts) {
    let t$361781, t$361781$, t$361781$0, t$361781$1, t$361781$2, t$361781$3;
    let element = opts && 'element' in opts ? opts.element : null;
    if (element == null) dart.nullFailed(I[364], 937, 23, "element");
    let style = opts && 'style' in opts ? opts.style : null;
    if (style == null) dart.nullFailed(I[364], 938, 28, "style");
    let updateDecoration = false;
    let cssStyle = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
    let color = (t$361781$ = (t$361781 = style.foreground, t$361781 == null ? null : t$361781.color), t$361781$ == null ? style.color : t$361781$);
    if ((t$361781$0 = style.foreground, t$361781$0 == null ? null : t$361781$0.style) == ui.PaintingStyle.stroke) {
      _engine['DomCSSStyleDeclarationExtension|set#color'](cssStyle, "transparent");
      let strokeWidth = (t$361781$1 = style.foreground, t$361781$1 == null ? null : t$361781$1.strokeWidth);
      let adaptedWidth = strokeWidth != null && dart.notNull(strokeWidth) > 0 ? strokeWidth : 1.0 / dart.notNull(ui.window.devicePixelRatio);
      _engine['DomCSSStyleDeclarationExtension|set#textStroke'](cssStyle, dart.str(adaptedWidth) + "px " + dart.str((t$361781$2 = color, t$361781$2 == null ? null : _engine['CssColor|toCssString'](t$361781$2))));
    } else if (color != null) {
      _engine['DomCSSStyleDeclarationExtension|set#color'](cssStyle, _engine['CssColor|toCssString'](color));
    }
    let background = (t$361781$3 = style.background, t$361781$3 == null ? null : t$361781$3.color);
    if (background != null) {
      _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](cssStyle, _engine['CssColor|toCssString'](background));
    }
    let fontSize = style.fontSize;
    if (fontSize != null) {
      _engine['DomCSSStyleDeclarationExtension|set#fontSize'](cssStyle, dart.strSafe(fontSize[$floor]()) + "px");
    }
    if (style.fontWeight != null) {
      _engine['DomCSSStyleDeclarationExtension|set#fontWeight'](cssStyle, _engine['FontWeightExtension|toCssString'](dart.nullCheck(style.fontWeight)));
    }
    if (style.fontStyle != null) {
      _engine['DomCSSStyleDeclarationExtension|set#fontStyle'](cssStyle, _engine['FontStyleExtension|toCssString'](dart.nullCheck(style.fontStyle)));
    }
    if (dart.test(ui_web.debugEmulateFlutterTesterEnvironment)) {
      _engine['DomCSSStyleDeclarationExtension|set#fontFamily'](cssStyle, dart.nullCheck(_engine.canonicalizeFontFamily(style.effectiveFontFamily)));
    } else {
      _engine['DomCSSStyleDeclarationExtension|set#fontFamily'](cssStyle, dart.nullCheck(_engine.canonicalizeFontFamily(style.fontFamily)));
    }
    if (style.letterSpacing != null) {
      _engine['DomCSSStyleDeclarationExtension|set#letterSpacing'](cssStyle, dart.str(style.letterSpacing) + "px");
    }
    if (style.wordSpacing != null) {
      _engine['DomCSSStyleDeclarationExtension|set#wordSpacing'](cssStyle, dart.str(style.wordSpacing) + "px");
    }
    if (style.decoration != null) {
      updateDecoration = true;
    }
    let shadows = style.shadows;
    if (shadows != null) {
      _engine['DomCSSStyleDeclarationExtension|set#textShadow'](cssStyle, _engine._shadowListToCss(shadows));
    }
    if (updateDecoration) {
      if (style.decoration != null) {
        let textDecoration = _engine._textDecorationToCssString(style.decoration, style.decorationStyle);
        if (textDecoration != null) {
          if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
            _engine.setElementStyle(element, "-webkit-text-decoration", textDecoration);
          } else {
            _engine['DomCSSStyleDeclarationExtension|set#textDecoration'](cssStyle, textDecoration);
          }
          let decorationColor = style.decorationColor;
          if (decorationColor != null) {
            _engine['DomCSSStyleDeclarationExtension|set#textDecorationColor'](cssStyle, _engine['CssColor|toCssString'](decorationColor));
          }
        }
      }
    }
    let fontFeatures = style.fontFeatures;
    if (fontFeatures != null && dart.test(fontFeatures[$isNotEmpty])) {
      _engine['DomCSSStyleDeclarationExtension|set#fontFeatureSettings'](cssStyle, _engine._fontFeatureListToCss(fontFeatures));
    }
    let fontVariations = style.fontVariations;
    if (fontVariations != null && dart.test(fontVariations[$isNotEmpty])) {
      _engine['DomCSSStyleDeclarationExtension|setProperty'](cssStyle, "font-variation-settings", _engine._fontVariationListToCss(fontVariations));
    }
  };
  _engine._shadowListToCss = function _shadowListToCss(shadows) {
    if (shadows == null) dart.nullFailed(I[364], 1026, 41, "shadows");
    if (dart.test(shadows[$isEmpty])) {
      return "";
    }
    let sb = new core.StringBuffer.new();
    let len = shadows[$length];
    for (let i = 0; i < dart.notNull(len); i = i + 1) {
      if (i !== 0) {
        sb.write(",");
      }
      let shadow = shadows[$_get](i);
      sb.write(dart.str(shadow.offset.dx) + "px " + dart.str(shadow.offset.dy) + "px " + dart.str(shadow.blurRadius) + "px " + dart.str(_engine['CssColor|toCssString'](shadow.color)));
    }
    return dart.toString(sb);
  };
  _engine._fontFeatureListToCss = function _fontFeatureListToCss(fontFeatures) {
    if (fontFeatures == null) dart.nullFailed(I[364], 1048, 51, "fontFeatures");
    if (!dart.test(fontFeatures[$isNotEmpty])) dart.assertFailed(null, I[364], 1049, 10, "fontFeatures.isNotEmpty");
    let sb = new core.StringBuffer.new();
    let len = fontFeatures[$length];
    for (let i = 0; i < dart.notNull(len); i = i + 1) {
      if (i !== 0) {
        sb.write(",");
      }
      let fontFeature = fontFeatures[$_get](i);
      sb.write("\"" + dart.str(fontFeature.feature) + "\" " + dart.str(fontFeature.value));
    }
    return dart.toString(sb);
  };
  _engine._fontVariationListToCss = function _fontVariationListToCss(fontVariations) {
    if (fontVariations == null) dart.nullFailed(I[364], 1065, 55, "fontVariations");
    if (!dart.test(fontVariations[$isNotEmpty])) dart.assertFailed(null, I[364], 1066, 10, "fontVariations.isNotEmpty");
    let sb = new core.StringBuffer.new();
    let len = fontVariations[$length];
    for (let i = 0; i < dart.notNull(len); i = i + 1) {
      if (i !== 0) {
        sb.write(",");
      }
      let fontVariation = fontVariations[$_get](i);
      sb.write("\"" + dart.str(fontVariation.axis) + "\" " + dart.str(fontVariation.value));
    }
    return dart.toString(sb);
  };
  _engine._textDecorationToCssString = function _textDecorationToCssString(decoration, decorationStyle) {
    let decorations = new core.StringBuffer.new();
    if (decoration != null) {
      if (dart.test(decoration.contains(ui.TextDecoration.underline))) {
        decorations.write("underline ");
      }
      if (dart.test(decoration.contains(ui.TextDecoration.overline))) {
        decorations.write("overline ");
      }
      if (dart.test(decoration.contains(ui.TextDecoration.lineThrough))) {
        decorations.write("line-through ");
      }
    }
    if (decorationStyle != null) {
      decorations.write(_engine._decorationStyleToCssString(decorationStyle));
    }
    return dart.test(decorations.isEmpty) ? null : dart.toString(decorations);
  };
  _engine._decorationStyleToCssString = function _decorationStyleToCssString(decorationStyle) {
    if (decorationStyle == null) dart.nullFailed(I[364], 1101, 60, "decorationStyle");
    switch (decorationStyle) {
      case C[778] || CT.C778:
        {
          return "dashed";
        }
      case C[777] || CT.C777:
        {
          return "dotted";
        }
      case C[776] || CT.C776:
        {
          return "double";
        }
      case C[775] || CT.C775:
        {
          return "solid";
        }
      case C[779] || CT.C779:
        {
          return "wavy";
        }
      default:
        {
          return null;
        }
    }
  };
  _engine.textAlignToCssValue = function textAlignToCssValue(align, textDirection) {
    if (textDirection == null) dart.nullFailed(I[364], 1126, 43, "textDirection");
    switch (align) {
      case C[761] || CT.C761:
        {
          return "left";
        }
      case C[762] || CT.C762:
        {
          return "right";
        }
      case C[763] || CT.C763:
        {
          return "center";
        }
      case C[764] || CT.C764:
        {
          return "justify";
        }
      case C[766] || CT.C766:
        {
          switch (textDirection) {
            case C[785] || CT.C785:
              {
                return "end";
              }
            case C[784] || CT.C784:
              {
                return "left";
              }
            default:
              dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
          }
        }
      case C[765] || CT.C765:
        {
          switch (textDirection) {
            case C[785] || CT.C785:
              {
                return "";
              }
            case C[784] || CT.C784:
              {
                return "right";
              }
            default:
              dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
          }
        }
      case void 0:
      case null:
        {
          return "";
        }
      default:
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
    }
  };
  _engine.buildCssFontString = function buildCssFontString(opts) {
    let t$361781, t$361781$, t$361781$0, t$361781$1, t$361781$2;
    let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
    let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
    let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    if (fontFamily == null) dart.nullFailed(I[372], 12, 19, "fontFamily");
    let cssFontStyle = (t$361781$ = (t$361781 = fontStyle, t$361781 == null ? null : _engine['FontStyleExtension|toCssString'](t$361781)), t$361781$ == null ? "normal" : t$361781$);
    let cssFontWeight = (t$361781$1 = (t$361781$0 = fontWeight, t$361781$0 == null ? null : _engine['FontWeightExtension|toCssString'](t$361781$0)), t$361781$1 == null ? "normal" : t$361781$1);
    let cssFontSize = (t$361781$2 = fontSize, t$361781$2 == null ? 14 : t$361781$2)[$floor]();
    let cssFontFamily = dart.nullCheck(_engine.canonicalizeFontFamily(fontFamily));
    return dart.str(cssFontStyle) + " " + dart.str(cssFontWeight) + " " + dart.strSafe(cssFontSize) + "px " + cssFontFamily;
  };
  _engine._computeBidiFragments = function _computeBidiFragments(text) {
    if (text == null) dart.nullFailed(I[373], 105, 49, "text");
    let fragments = G$.JSArrayOfBidiFragment().of([]);
    if (text[$isEmpty]) {
      fragments[$add](C[1086] || CT.C1086);
      return fragments;
    }
    let fragmentStart = 0;
    let textDirection = _engine._getTextDirection(text, 0);
    let fragmentFlow = _engine._getFragmentFlow(text, 0);
    for (let i = 1; i < text.length; i = i + 1) {
      let charTextDirection = _engine._getTextDirection(text, i);
      if (charTextDirection != textDirection) {
        fragments[$add](new _engine.BidiFragment.new(fragmentStart, i, textDirection, fragmentFlow));
        fragmentStart = i;
        textDirection = charTextDirection;
        fragmentFlow = _engine._getFragmentFlow(text, i);
      } else {
        if (fragmentFlow == _engine.FragmentFlow.previous) {
          fragmentFlow = _engine._getFragmentFlow(text, i);
        }
      }
    }
    fragments[$add](new _engine.BidiFragment.new(fragmentStart, text.length, textDirection, fragmentFlow));
    return fragments;
  };
  _engine._getTextDirection = function _getTextDirection(text, i) {
    if (text == null) dart.nullFailed(I[373], 140, 44, "text");
    if (i == null) dart.nullFailed(I[373], 140, 54, "i");
    let codePoint = dart.nullCheck(_engine.getCodePoint(text, i));
    if (dart.test(_engine._isDigit(codePoint)) || dart.test(_engine._isMashriqiDigit(codePoint))) {
      return ui.TextDirection.ltr;
    }
    let textDirection = _engine._textDirectionLookup.findForChar(codePoint);
    if (textDirection != null) {
      return textDirection;
    }
    return null;
  };
  _engine._getFragmentFlow = function _getFragmentFlow(text, i) {
    if (text == null) dart.nullFailed(I[373], 156, 38, "text");
    if (i == null) dart.nullFailed(I[373], 156, 48, "i");
    let codePoint = dart.nullCheck(_engine.getCodePoint(text, i));
    if (dart.test(_engine._isDigit(codePoint))) {
      return _engine.FragmentFlow.previous;
    }
    if (dart.test(_engine._isMashriqiDigit(codePoint))) {
      return _engine.FragmentFlow.rtl;
    }
    let textDirection = _engine._textDirectionLookup.findForChar(codePoint);
    switch (textDirection) {
      case C[785] || CT.C785:
        {
          return _engine.FragmentFlow.ltr;
        }
      case C[784] || CT.C784:
        {
          return _engine.FragmentFlow.rtl;
        }
      case void 0:
      case null:
        {
          return _engine.FragmentFlow.sandwich;
        }
      default:
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
    }
  };
  _engine._isDigit = function _isDigit(codePoint) {
    if (codePoint == null) dart.nullFailed(I[373], 178, 19, "codePoint");
    return dart.notNull(codePoint) >= 48 && dart.notNull(codePoint) <= 57;
  };
  _engine._isMashriqiDigit = function _isMashriqiDigit(codePoint) {
    if (codePoint == null) dart.nullFailed(I[373], 182, 27, "codePoint");
    return dart.notNull(codePoint) >= 1632 && dart.notNull(codePoint) <= 1641;
  };
  _engine.isUtf16Surrogate = function isUtf16Surrogate(char) {
    if (char == null) dart.nullFailed(I[374], 64, 27, "char");
    return (dart.notNull(char) & 63488) === 55296;
  };
  _engine.combineSurrogatePair = function combineSurrogatePair(text, index) {
    if (text == null) dart.nullFailed(I[374], 74, 33, "text");
    if (index == null) dart.nullFailed(I[374], 74, 43, "index");
    let hi = text[$codeUnitAt](index);
    let lo = text[$codeUnitAt](dart.notNull(index) + 1);
    let x = ((hi & (1 << 6) - 1) >>> 0 << 10 | (lo & (1 << 10) - 1) >>> 0) >>> 0;
    let w = (hi[$rightShift](6) & (1 << 5) - 1) >>> 0;
    let u = w + 1;
    return (u << 16 | x) >>> 0;
  };
  _engine.getCodePoint = function getCodePoint(text, index) {
    if (text == null) dart.nullFailed(I[374], 86, 26, "text");
    if (index == null) dart.nullFailed(I[374], 86, 36, "index");
    if (dart.notNull(index) < 0 || dart.notNull(index) >= text.length) {
      return null;
    }
    let char = text[$codeUnitAt](index);
    if (dart.test(_engine.isUtf16Surrogate(char)) && dart.notNull(index) < text.length - 1) {
      return _engine.combineSurrogatePair(text, index);
    }
    return char;
  };
  _engine._unpackProperties = function _unpackProperties(P, packedData, singleRangesCount, propertyEnumValues) {
    if (packedData == null) dart.nullFailed(I[374], 185, 10, "packedData");
    if (singleRangesCount == null) dart.nullFailed(I[374], 186, 7, "singleRangesCount");
    if (propertyEnumValues == null) dart.nullFailed(I[374], 187, 11, "propertyEnumValues");
    if (!((packedData.length + dart.notNull(singleRangesCount) * 3)[$modulo](9) === 0)) dart.assertFailed(null, I[374], 204, 10, "(packedData.length + singleRangesCount * 3) % 9 == 0");
    let ranges = _interceptors.JSArray$(P[_eval]("_engine|UnicodeRange<0>")).of([]);
    let dataLength = packedData.length;
    let i = 0;
    while (i < dataLength) {
      let rangeStart = _engine._consumeInt(packedData, i);
      i = i + 4;
      let rangeEnd = null;
      if (packedData[$codeUnitAt](i) === 33) {
        rangeEnd = rangeStart;
        i = i + 1;
      } else {
        rangeEnd = _engine._consumeInt(packedData, i);
        i = i + 4;
      }
      let charCode = packedData[$codeUnitAt](i);
      let property = propertyEnumValues[$_get](_engine._getEnumIndexFromPackedValue(charCode));
      i = i + 1;
      ranges[$add](new (_engine.UnicodeRange$(P)).new(rangeStart, rangeEnd, property));
    }
    return ranges;
  };
  _engine._getEnumIndexFromPackedValue = function _getEnumIndexFromPackedValue(charCode) {
    if (charCode == null) dart.nullFailed(I[374], 231, 38, "charCode");
    if (!(dart.notNull(charCode) >= 65 && dart.notNull(charCode) <= 90 || dart.notNull(charCode) >= 97 && dart.notNull(charCode) <= 122)) dart.assertFailed(null, I[374], 235, 10, "(charCode >= kChar_A && charCode <= kChar_Z) ||\n      (charCode >= kChar_a && charCode <= kChar_z)");
    if (dart.notNull(charCode) <= 90) {
      return dart.notNull(charCode) - 65;
    }
    return 26 + dart.notNull(charCode) - 97;
  };
  _engine._consumeInt = function _consumeInt(packedData, index) {
    if (packedData == null) dart.nullFailed(I[374], 246, 24, "packedData");
    if (index == null) dart.nullFailed(I[374], 246, 40, "index");
    let digit0 = _engine.getIntFromCharCode(packedData[$codeUnitAt](dart.notNull(index) + 3));
    let digit1 = _engine.getIntFromCharCode(packedData[$codeUnitAt](dart.notNull(index) + 2));
    let digit2 = _engine.getIntFromCharCode(packedData[$codeUnitAt](dart.notNull(index) + 1));
    let digit3 = _engine.getIntFromCharCode(packedData[$codeUnitAt](index));
    return dart.notNull(digit0) + dart.notNull(digit1) * 36 + dart.notNull(digit2) * 36 * 36 + dart.notNull(digit3) * 36 * 36 * 36;
  };
  _engine.getIntFromCharCode = function getIntFromCharCode(charCode) {
    if (charCode == null) dart.nullFailed(I[374], 264, 28, "charCode");
    if (!(dart.notNull(charCode) >= 48 && dart.notNull(charCode) <= 57 || dart.notNull(charCode) >= 97 && dart.notNull(charCode) <= 122)) dart.assertFailed(null, I[374], 265, 10, "(charCode >= kChar_0 && charCode <= kChar_9) ||\n      (charCode >= kChar_a && charCode <= kChar_z)");
    if (dart.notNull(charCode) <= 57) {
      return dart.notNull(charCode) - 48;
    }
    return dart.notNull(charCode) - 97 + 10;
  };
  _engine.browserHasAutofillOverlay = function browserHasAutofillOverlay() {
    return ui_web.browser.browserEngine == ui_web.BrowserEngine.blink || ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit;
  };
  _engine._emptyCallback = function _emptyCallback(_) {
  };
  _engine._setStaticStyleAttributes = function _setStaticStyleAttributes(domElement) {
    let t$361781, t$361781$;
    if (domElement == null) dart.nullFailed(I[354], 38, 47, "domElement");
    _engine['DomTokenListExtension|add'](js_util.getProperty(T$13.DomTokenList(), domElement, "classList"), "flt-text-editing");
    let elementStyle = js_util.getProperty(T$9.DomCSSStyleDeclaration(), domElement, "style");
    t$361781 = elementStyle;
    (() => {
      _engine['DomCSSStyleDeclarationExtension|setProperty'](t$361781, "forced-color-adjust", "none");
      _engine['DomCSSStyleDeclarationExtension|set#whiteSpace'](t$361781, "pre-wrap");
      _engine['DomCSSStyleDeclarationExtension|set#alignContent'](t$361781, "center");
      _engine['DomCSSStyleDeclarationExtension|set#position'](t$361781, "absolute");
      _engine['DomCSSStyleDeclarationExtension|set#top'](t$361781, "0");
      _engine['DomCSSStyleDeclarationExtension|set#left'](t$361781, "0");
      _engine['DomCSSStyleDeclarationExtension|set#padding'](t$361781, "0");
      _engine['DomCSSStyleDeclarationExtension|set#opacity'](t$361781, "1");
      _engine['DomCSSStyleDeclarationExtension|set#color'](t$361781, "transparent");
      _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$361781, "transparent");
      _engine['DomCSSStyleDeclarationExtension|set#background'](t$361781, "transparent");
      _engine['DomCSSStyleDeclarationExtension|set#caretColor'](t$361781, "transparent");
      _engine['DomCSSStyleDeclarationExtension|set#outline'](t$361781, "none");
      _engine['DomCSSStyleDeclarationExtension|set#border'](t$361781, "none");
      _engine['DomCSSStyleDeclarationExtension|set#resize'](t$361781, "none");
      _engine['DomCSSStyleDeclarationExtension|set#textShadow'](t$361781, "none");
      _engine['DomCSSStyleDeclarationExtension|set#overflow'](t$361781, "hidden");
      _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$361781, "0 0 0");
      return t$361781;
    })();
    if (dart.test(_engine.browserHasAutofillOverlay())) {
      _engine['DomTokenListExtension|add'](js_util.getProperty(T$13.DomTokenList(), domElement, "classList"), "transparentTextEditing");
    }
    if (dart.test(_engine._debugVisibleTextEditing)) {
      t$361781$ = elementStyle;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#color'](t$361781$, "purple");
        _engine['DomCSSStyleDeclarationExtension|set#outline'](t$361781$, "1px solid purple");
        return t$361781$;
      })();
    }
  };
  _engine._styleAutofillElements = function _styleAutofillElements(domElement, opts) {
    let t$361781, t$361781$, t$361781$0;
    if (domElement == null) dart.nullFailed(I[354], 83, 18, "domElement");
    let isOffScreen = opts && 'isOffScreen' in opts ? opts.isOffScreen : false;
    if (isOffScreen == null) dart.nullFailed(I[354], 84, 8, "isOffScreen");
    let shouldHideElement = opts && 'shouldHideElement' in opts ? opts.shouldHideElement : true;
    if (shouldHideElement == null) dart.nullFailed(I[354], 85, 8, "shouldHideElement");
    let shouldDisablePointerEvents = opts && 'shouldDisablePointerEvents' in opts ? opts.shouldDisablePointerEvents : false;
    if (shouldDisablePointerEvents == null) dart.nullFailed(I[354], 86, 8, "shouldDisablePointerEvents");
    let elementStyle = js_util.getProperty(T$9.DomCSSStyleDeclaration(), domElement, "style");
    t$361781 = elementStyle;
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#whiteSpace'](t$361781, "pre-wrap");
      _engine['DomCSSStyleDeclarationExtension|set#alignContent'](t$361781, "center");
      _engine['DomCSSStyleDeclarationExtension|set#padding'](t$361781, "0");
      _engine['DomCSSStyleDeclarationExtension|set#opacity'](t$361781, "1");
      _engine['DomCSSStyleDeclarationExtension|set#color'](t$361781, "transparent");
      _engine['DomCSSStyleDeclarationExtension|set#backgroundColor'](t$361781, "transparent");
      _engine['DomCSSStyleDeclarationExtension|set#background'](t$361781, "transparent");
      _engine['DomCSSStyleDeclarationExtension|set#outline'](t$361781, "none");
      _engine['DomCSSStyleDeclarationExtension|set#border'](t$361781, "none");
      _engine['DomCSSStyleDeclarationExtension|set#resize'](t$361781, "none");
      _engine['DomCSSStyleDeclarationExtension|set#textShadow'](t$361781, "transparent");
      _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$361781, "0 0 0");
      return t$361781;
    })();
    if (dart.test(isOffScreen)) {
      t$361781$ = elementStyle;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#top'](t$361781$, "-9999px");
        _engine['DomCSSStyleDeclarationExtension|set#left'](t$361781$, "-9999px");
        return t$361781$;
      })();
    }
    if (dart.test(shouldHideElement)) {
      t$361781$0 = elementStyle;
      (() => {
        _engine['DomCSSStyleDeclarationExtension|set#width'](t$361781$0, "0");
        _engine['DomCSSStyleDeclarationExtension|set#height'](t$361781$0, "0");
        return t$361781$0;
      })();
    }
    if (dart.test(shouldDisablePointerEvents)) {
      _engine['DomCSSStyleDeclarationExtension|set#pointerEvents'](elementStyle, "none");
    }
    if (dart.test(_engine.browserHasAutofillOverlay())) {
      _engine['DomTokenListExtension|add'](js_util.getProperty(T$13.DomTokenList(), domElement, "classList"), "transparentTextEditing");
    }
    _engine['DomCSSStyleDeclarationExtension|setProperty'](elementStyle, "caret-color", "transparent");
  };
  _engine._ensureEditingElementInView = function _ensureEditingElementInView(element, viewId) {
    let t$361781;
    if (element == null) dart.nullFailed(I[354], 127, 45, "element");
    if (viewId == null) dart.nullFailed(I[354], 127, 58, "viewId");
    let isAlreadyAppended = (t$361781 = _engine['DomNodeExtension|get#isConnected'](element), t$361781 == null ? false : t$361781);
    if (!dart.test(isAlreadyAppended)) {
      return;
    }
    let viewManager = _engine.EnginePlatformDispatcher.instance.viewManager;
    let currentView = viewManager.findViewForElement(element);
    if (currentView == null) {
      return;
    }
    if (currentView.viewId != viewId) {
      _engine._insertEditingElementInView(element, viewId);
    }
  };
  _engine._insertEditingElementInView = function _insertEditingElementInView(element, viewId) {
    if (element == null) dart.nullFailed(I[354], 148, 45, "element");
    if (viewId == null) dart.nullFailed(I[354], 148, 58, "viewId");
    let viewManager = _engine.EnginePlatformDispatcher.instance.viewManager;
    let view = viewManager._get(viewId);
    if (!(view != null)) dart.assertFailed("Could not find View with id " + dart.str(viewId) + ". This should never happen, please file a bug!", I[354], 152, 5, "view != null");
    dart.nullCheck(view).dom.textEditingHost.append(element);
  };
  _engine._replace = function _replace(originalText, replacementText, replacedRange) {
    if (originalText == null) dart.nullFailed(I[354], 517, 24, "originalText");
    if (replacementText == null) dart.nullFailed(I[354], 517, 45, "replacementText");
    if (replacedRange == null) dart.nullFailed(I[354], 517, 75, "replacedRange");
    if (!dart.test(replacedRange.isValid)) dart.assertFailed(null, I[354], 518, 10, "replacedRange.isValid");
    if (!(dart.notNull(replacedRange.start) <= originalText.length && dart.notNull(replacedRange.end) <= originalText.length)) dart.assertFailed(null, I[354], 519, 10, "replacedRange.start <= originalText.length && replacedRange.end <= originalText.length");
    let normalizedRange = new ui.TextRange.new({start: math.min(T$.int(), replacedRange.start, replacedRange.end), end: math.max(T$.int(), replacedRange.start, replacedRange.end)});
    return dart.notNull(normalizedRange.textBefore(originalText)) + dart.notNull(replacementText) + dart.notNull(normalizedRange.textAfter(originalText));
  };
  _engine.createDefaultTextEditingStrategy = function createDefaultTextEditingStrategy(textEditing) {
    if (textEditing == null) dart.nullFailed(I[354], 1930, 79, "textEditing");
    let strategy = null;
    if (ui_web.browser.operatingSystem == ui_web.OperatingSystem.iOs) {
      strategy = new _engine.IOSTextEditingStrategy.new(textEditing);
    } else if (ui_web.browser.operatingSystem == ui_web.OperatingSystem.android) {
      strategy = new _engine.AndroidTextEditingStrategy.new(textEditing);
    } else if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
      strategy = new _engine.SafariDesktopTextEditingStrategy.new(textEditing);
    } else if (ui_web.browser.browserEngine == ui_web.BrowserEngine.firefox) {
      strategy = new _engine.FirefoxTextEditingStrategy.new(textEditing);
    } else {
      strategy = new _engine.GloballyPositionedTextEditingStrategy.new(textEditing);
    }
    return strategy;
  };
  _engine.saveForms = function saveForms() {
    _engine.formsOnTheDom[$forEach](dart.fn((identifier, form) => {
      if (identifier == null) dart.nullFailed(I[354], 2090, 33, "identifier");
      if (form == null) dart.nullFailed(I[354], 2090, 64, "form");
      let submitBtn = T$12.DomHTMLInputElement()[_as](_engine['DomElementExtension|getElementsByClassName'](form, "submitBtn")[$first]);
      submitBtn.click();
    }, T$13.StringAndDomHTMLFormElementTovoid()));
  };
  _engine.cleanForms = function cleanForms() {
    for (let form of _engine.formsOnTheDom[$values]) {
      form.remove();
    }
    _engine.formsOnTheDom[$clear]();
  };
  _engine.futurize = function futurize(T, callbacker) {
    if (callbacker == null) dart.nullFailed(I[380], 41, 37, "callbacker");
    let completer = async.Completer$(T).sync();
    let isSync = true;
    let error = callbacker(dart.fn(t => {
      if (t == null) {
        if (isSync) {
          dart.throw(core.Exception.new("operation failed"));
        } else {
          completer.completeError(core.Exception.new("operation failed"));
        }
      } else {
        completer.complete(t);
      }
    }, T[_eval]("~(0?)")));
    isSync = false;
    if (error != null) {
      dart.throw(core.Exception.new(error));
    }
    return completer.future;
  };
  _engine.matrix4ToCssTransform = function matrix4ToCssTransform(matrix) {
    if (matrix == null) dart.nullFailed(I[380], 66, 38, "matrix");
    return _engine.float64ListToCssTransform(matrix.storage);
  };
  _engine.setElementTransform = function setElementTransform(element, matrix4) {
    let t$361781;
    if (element == null) dart.nullFailed(I[380], 73, 37, "element");
    if (matrix4 == null) dart.nullFailed(I[380], 73, 58, "matrix4");
    t$361781 = js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style");
    (() => {
      _engine['DomCSSStyleDeclarationExtension|set#transformOrigin'](t$361781, "0 0 0");
      _engine['DomCSSStyleDeclarationExtension|set#transform'](t$361781, _engine.float64ListToCssTransform(matrix4));
      return t$361781;
    })();
  };
  _engine.float64ListToCssTransform = function float64ListToCssTransform(matrix) {
    if (matrix == null) dart.nullFailed(I[380], 88, 47, "matrix");
    if (!(matrix[$length] === 16)) dart.assertFailed(null, I[380], 89, 10, "matrix.length == 16");
    let transformKind = _engine.transformKindOf(matrix);
    if (transformKind == _engine.TransformKind.transform2d) {
      return _engine.float64ListToCssTransform2d(matrix);
    } else if (transformKind == _engine.TransformKind.complex) {
      return _engine.float64ListToCssTransform3d(matrix);
    } else {
      if (!(transformKind == _engine.TransformKind.identity)) dart.assertFailed(null, I[380], 96, 12, "transformKind == TransformKind.identity");
      return "none";
    }
  };
  _engine.transformKindOf = function transformKindOf(matrix) {
    if (matrix == null) dart.nullFailed(I[380], 120, 44, "matrix");
    if (!(matrix[$length] === 16)) dart.assertFailed(null, I[380], 121, 10, "matrix.length == 16");
    let m = matrix;
    let isSimple2dTransform = m[$_get](15) === 1.0 && m[$_get](14) === 0.0 && m[$_get](11) === 0.0 && m[$_get](10) === 1.0 && m[$_get](9) === 0.0 && m[$_get](8) === 0.0 && m[$_get](7) === 0.0 && m[$_get](6) === 0.0 && m[$_get](3) === 0.0 && m[$_get](2) === 0.0;
    if (!isSimple2dTransform) {
      return _engine.TransformKind.complex;
    }
    let isIdentityTransform = m[$_get](0) === 1.0 && m[$_get](1) === 0.0 && m[$_get](4) === 0.0 && m[$_get](5) === 1.0 && m[$_get](12) === 0.0 && m[$_get](13) === 0.0;
    if (isIdentityTransform) {
      return _engine.TransformKind.identity;
    } else {
      return _engine.TransformKind.transform2d;
    }
  };
  _engine.isIdentityFloat32ListTransform = function isIdentityFloat32ListTransform(matrix) {
    if (matrix == null) dart.nullFailed(I[380], 166, 49, "matrix");
    if (!(matrix[$length] === 16)) dart.assertFailed(null, I[380], 167, 10, "matrix.length == 16");
    return _engine.transformKindOf(matrix) == _engine.TransformKind.identity;
  };
  _engine.float64ListToCssTransform2d = function float64ListToCssTransform2d(matrix) {
    if (matrix == null) dart.nullFailed(I[380], 178, 49, "matrix");
    if (!(_engine.transformKindOf(matrix) != _engine.TransformKind.complex)) dart.assertFailed(null, I[380], 179, 10, "transformKindOf(matrix) != TransformKind.complex");
    return "matrix(" + dart.str(matrix[$_get](0)) + "," + dart.str(matrix[$_get](1)) + "," + dart.str(matrix[$_get](4)) + "," + dart.str(matrix[$_get](5)) + "," + dart.str(matrix[$_get](12)) + "," + dart.str(matrix[$_get](13)) + ")";
  };
  _engine.float64ListToCssTransform3d = function float64ListToCssTransform3d(matrix) {
    if (matrix == null) dart.nullFailed(I[380], 184, 49, "matrix");
    if (!(matrix[$length] === 16)) dart.assertFailed(null, I[380], 185, 10, "matrix.length == 16");
    let m = matrix;
    if (m[$_get](0) === 1.0 && m[$_get](1) === 0.0 && m[$_get](2) === 0.0 && m[$_get](3) === 0.0 && m[$_get](4) === 0.0 && m[$_get](5) === 1.0 && m[$_get](6) === 0.0 && m[$_get](7) === 0.0 && m[$_get](8) === 0.0 && m[$_get](9) === 0.0 && m[$_get](10) === 1.0 && m[$_get](11) === 0.0 && m[$_get](14) === 0.0 && m[$_get](15) === 1.0) {
      let tx = m[$_get](12);
      let ty = m[$_get](13);
      return "translate3d(" + dart.str(tx) + "px, " + dart.str(ty) + "px, 0px)";
    } else {
      return "matrix3d(" + dart.str(m[$_get](0)) + "," + dart.str(m[$_get](1)) + "," + dart.str(m[$_get](2)) + "," + dart.str(m[$_get](3)) + "," + dart.str(m[$_get](4)) + "," + dart.str(m[$_get](5)) + "," + dart.str(m[$_get](6)) + "," + dart.str(m[$_get](7)) + "," + dart.str(m[$_get](8)) + "," + dart.str(m[$_get](9)) + "," + dart.str(m[$_get](10)) + "," + dart.str(m[$_get](11)) + "," + dart.str(m[$_get](12)) + "," + dart.str(m[$_get](13)) + "," + dart.str(m[$_get](14)) + "," + dart.str(m[$_get](15)) + ")";
    }
  };
  _engine.transformRectWithMatrix = function transformRectWithMatrix(transform, rect) {
    if (transform == null) dart.nullFailed(I[380], 218, 41, "transform");
    if (rect == null) dart.nullFailed(I[380], 218, 60, "rect");
    _engine._tempRectData[$_set](0, rect.left);
    _engine._tempRectData[$_set](1, rect.top);
    _engine._tempRectData[$_set](2, rect.right);
    _engine._tempRectData[$_set](3, rect.bottom);
    _engine.transformLTRB(transform, _engine._tempRectData);
    return new ui.Rect.fromLTRB(_engine._tempRectData[$_get](0), _engine._tempRectData[$_get](1), _engine._tempRectData[$_get](2), _engine._tempRectData[$_get](3));
  };
  _engine.transformLTRB = function transformLTRB(transform, ltrb) {
    if (transform == null) dart.nullFailed(I[380], 243, 28, "transform");
    if (ltrb == null) dart.nullFailed(I[380], 243, 51, "ltrb");
    _engine._tempPointData[$_set](0, ltrb[$_get](0));
    _engine._tempPointData[$_set](4, ltrb[$_get](1));
    _engine._tempPointData[$_set](8, 0.0);
    _engine._tempPointData[$_set](12, 1.0);
    _engine._tempPointData[$_set](1, ltrb[$_get](2));
    _engine._tempPointData[$_set](5, ltrb[$_get](1));
    _engine._tempPointData[$_set](9, 0.0);
    _engine._tempPointData[$_set](13, 1.0);
    _engine._tempPointData[$_set](2, ltrb[$_get](0));
    _engine._tempPointData[$_set](6, ltrb[$_get](3));
    _engine._tempPointData[$_set](10, 0.0);
    _engine._tempPointData[$_set](14, 1.0);
    _engine._tempPointData[$_set](3, ltrb[$_get](2));
    _engine._tempPointData[$_set](7, ltrb[$_get](3));
    _engine._tempPointData[$_set](11, 0.0);
    _engine._tempPointData[$_set](15, 1.0);
    _engine._tempPointMatrix.multiplyTranspose(transform);
    let w = transform._get(15);
    if (w === 0.0) {
      w = 1.0;
    }
    ltrb[$_set](0, math.min(T$.double(), math.min(T$.double(), math.min(T$.double(), _engine._tempPointData[$_get](0), _engine._tempPointData[$_get](1)), _engine._tempPointData[$_get](2)), _engine._tempPointData[$_get](3)) / dart.notNull(w));
    ltrb[$_set](1, math.min(T$.double(), math.min(T$.double(), math.min(T$.double(), _engine._tempPointData[$_get](4), _engine._tempPointData[$_get](5)), _engine._tempPointData[$_get](6)), _engine._tempPointData[$_get](7)) / dart.notNull(w));
    ltrb[$_set](2, math.max(T$.double(), math.max(T$.double(), math.max(T$.double(), _engine._tempPointData[$_get](0), _engine._tempPointData[$_get](1)), _engine._tempPointData[$_get](2)), _engine._tempPointData[$_get](3)) / dart.notNull(w));
    ltrb[$_set](3, math.max(T$.double(), math.max(T$.double(), math.max(T$.double(), _engine._tempPointData[$_get](4), _engine._tempPointData[$_get](5)), _engine._tempPointData[$_get](6)), _engine._tempPointData[$_get](7)) / dart.notNull(w));
  };
  _engine.rectContainsOther = function rectContainsOther(rect, other) {
    if (rect == null) dart.nullFailed(I[380], 320, 32, "rect");
    if (other == null) dart.nullFailed(I[380], 320, 46, "other");
    return dart.notNull(rect.left) <= dart.notNull(other.left) && dart.notNull(rect.top) <= dart.notNull(other.top) && dart.notNull(rect.right) >= dart.notNull(other.right) && dart.notNull(rect.bottom) >= dart.notNull(other.bottom);
  };
  _engine['CssColor|toCssString'] = function CssColor$124toCssString($this) {
    if ($this == null) dart.nullFailed(I[380], 329, 10, "#this");
    return _engine.colorValueToCssString($this.value);
  };
  _engine['CssColor|get#toCssString'] = function CssColor$124get$35toCssString($this) {
    if ($this == null) dart.nullFailed(I[380], 329, 10, "#this");
    return dart.fn(() => _engine['CssColor|toCssString']($this), T$.VoidToString());
  };
  _engine.colorValueToCssString = function colorValueToCssString(value) {
    if (value == null) dart.nullFailed(I[380], 335, 34, "value");
    if (value === 4278190080) {
      return "#000000";
    }
    if ((4278190080 & dart.notNull(value)) >>> 0 === 4278190080) {
      let hexValue = (dart.notNull(value) & 16777215)[$toRadixString](16);
      let hexValueLength = hexValue.length;
      switch (hexValueLength) {
        case 1:
          {
            return "#00000" + hexValue;
          }
        case 2:
          {
            return "#0000" + hexValue;
          }
        case 3:
          {
            return "#000" + hexValue;
          }
        case 4:
          {
            return "#00" + hexValue;
          }
        case 5:
          {
            return "#0" + hexValue;
          }
        default:
          {
            return "#" + hexValue;
          }
      }
    } else {
      let alpha = (value[$rightShift](24) & 255) / 255.0;
      let sb = new core.StringBuffer.new();
      sb.write("rgba(");
      sb.write((dart.notNull(value) >> 16 & 255)[$toString]());
      sb.write(",");
      sb.write((dart.notNull(value) >> 8 & 255)[$toString]());
      sb.write(",");
      sb.write((dart.notNull(value) & 255)[$toString]());
      sb.write(",");
      sb.write(alpha[$toString]());
      sb.write(")");
      return dart.toString(sb);
    }
  };
  _engine.colorComponentsToCssString = function colorComponentsToCssString(r, g, b, a) {
    if (r == null) dart.nullFailed(I[380], 373, 39, "r");
    if (g == null) dart.nullFailed(I[380], 373, 46, "g");
    if (b == null) dart.nullFailed(I[380], 373, 53, "b");
    if (a == null) dart.nullFailed(I[380], 373, 60, "a");
    if (a === 255) {
      return "rgb(" + dart.str(r) + "," + dart.str(g) + "," + dart.str(b) + ")";
    } else {
      let alphaRatio = dart.notNull(a) / 255;
      return "rgba(" + dart.str(r) + "," + dart.str(g) + "," + dart.str(b) + "," + alphaRatio[$toStringAsFixed](2) + ")";
    }
  };
  _engine.isNsErrorFailureException = function isNsErrorFailureException(e) {
    if (e == null) dart.nullFailed(I[380], 397, 39, "e");
    return dart.equals(_engine.getJsProperty(T$.dynamic(), e, "name"), "NS_ERROR_FAILURE");
  };
  _engine.canonicalizeFontFamily = function canonicalizeFontFamily(fontFamily) {
    if (dart.test(_engine._genericFontFamilies.contains(fontFamily))) {
      return fontFamily;
    }
    if (dart.test(_engine.isMacOrIOS)) {
      if (fontFamily === ".SF Pro Text" || fontFamily === ".SF Pro Display" || fontFamily === ".SF UI Text" || fontFamily === ".SF UI Display") {
        return _engine._fallbackFontFamily;
      }
    }
    return "\"" + dart.str(fontFamily) + "\", " + dart.str(_engine._fallbackFontFamily) + ", sans-serif";
  };
  _engine.offsetListToFloat32List = function offsetListToFloat32List(offsetList) {
    if (offsetList == null) dart.nullFailed(I[380], 468, 53, "offsetList");
    let length = offsetList[$length];
    let floatList = _native_typed_data.NativeFloat32List.new(dart.notNull(length) * 2);
    for (let i = 0, destIndex = 0; i < dart.notNull(length); i = i + 1, destIndex = destIndex + 2) {
      floatList[$_set](destIndex, offsetList[$_get](i).dx);
      floatList[$_set](destIndex + 1, offsetList[$_get](i).dy);
    }
    return floatList;
  };
  _engine.applyWebkitClipFix = function applyWebkitClipFix(containerElement) {
    if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
      _engine['DomCSSStyleDeclarationExtension|set#zIndex'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), dart.nullCheck(containerElement), "style"), "0");
    }
  };
  _engine.convertSigmaToRadius = function convertSigmaToRadius(sigma) {
    if (sigma == null) dart.nullFailed(I[380], 499, 36, "sigma");
    return dart.notNull(sigma) * 2.0;
  };
  _engine.clampInt = function clampInt(value, min, max) {
    if (value == null) dart.nullFailed(I[380], 503, 18, "value");
    if (min == null) dart.nullFailed(I[380], 503, 29, "min");
    if (max == null) dart.nullFailed(I[380], 503, 38, "max");
    if (!(dart.notNull(min) <= dart.notNull(max))) dart.assertFailed(null, I[380], 504, 10, "min <= max");
    if (dart.notNull(value) < dart.notNull(min)) {
      return min;
    } else if (dart.notNull(value) > dart.notNull(max)) {
      return max;
    } else {
      return value;
    }
  };
  _engine.matrixString = function matrixString(matrix) {
    if (matrix == null) dart.nullFailed(I[380], 521, 31, "matrix");
    let sb = new core.StringBuffer.new();
    for (let i = 0; i < 16; i = i + 1) {
      sb.write(matrix[$_get](i));
      if ((i + 1)[$modulo](4) === 0) {
        sb.write("\n");
      } else {
        sb.write(" ");
      }
    }
    return dart.toString(sb);
  };
  _engine.listEquals = function listEquals(T, a, b) {
    if (a == null) {
      return b == null;
    }
    if (b == null || a[$length] != b[$length]) {
      return false;
    }
    for (let index = 0; index < dart.notNull(a[$length]); index = index + 1) {
      if (!dart.equals(a[$_get](index), b[$_get](index))) {
        return false;
      }
    }
    return true;
  };
  _engine.blurSigmasToCssString = function blurSigmasToCssString(sigmaX, sigmaY) {
    if (sigmaX == null) dart.nullFailed(I[380], 557, 37, "sigmaX");
    if (sigmaY == null) dart.nullFailed(I[380], 557, 52, "sigmaY");
    return "blur(" + dart.strSafe((dart.notNull(sigmaX) + dart.notNull(sigmaY)) * 0.5) + "px)";
  };
  _engine['JsonExtensions|readJson'] = function JsonExtensions$124readJson($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 566, 24, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 566, 40, "propertyName");
    return T$2.MapOfString$dynamic()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|get#readJson'] = function JsonExtensions$124get$35readJson($this) {
    if ($this == null) dart.nullFailed(I[380], 566, 24, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 566, 40, "propertyName");
      return _engine['JsonExtensions|readJson']($this, propertyName);
    }, T$13.StringToMapOfString$dynamic());
  };
  _engine['JsonExtensions|tryJson'] = function JsonExtensions$124tryJson($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 570, 25, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 570, 40, "propertyName");
    return T$7.MapNOfString$dynamic()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|get#tryJson'] = function JsonExtensions$124get$35tryJson($this) {
    if ($this == null) dart.nullFailed(I[380], 570, 25, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 570, 40, "propertyName");
      return _engine['JsonExtensions|tryJson']($this, propertyName);
    }, T$13.StringToMapNOfString$dynamic());
  };
  _engine['JsonExtensions|readDynamicJson'] = function JsonExtensions$124readDynamicJson($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 574, 25, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 574, 48, "propertyName");
    return T$.Map()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|get#readDynamicJson'] = function JsonExtensions$124get$35readDynamicJson($this) {
    if ($this == null) dart.nullFailed(I[380], 574, 25, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 574, 48, "propertyName");
      return _engine['JsonExtensions|readDynamicJson']($this, propertyName);
    }, T$13.StringToMap());
  };
  _engine['JsonExtensions|get#tryDynamicJson'] = function JsonExtensions$124get$35tryDynamicJson($this) {
    if ($this == null) dart.nullFailed(I[380], 578, 26, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 578, 48, "propertyName");
      return _engine['JsonExtensions|tryDynamicJson']($this, propertyName);
    }, T.StringToMapN());
  };
  _engine['JsonExtensions|tryDynamicJson'] = function JsonExtensions$124tryDynamicJson($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 578, 26, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 578, 48, "propertyName");
    return T$2.MapN()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|readList'] = function JsonExtensions$124readList($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 582, 17, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 582, 33, "propertyName");
    return T$.List()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|get#readList'] = function JsonExtensions$124get$35readList($this) {
    if ($this == null) dart.nullFailed(I[380], 582, 17, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 582, 33, "propertyName");
      return _engine['JsonExtensions|readList']($this, propertyName);
    }, T$13.StringToList());
  };
  _engine['JsonExtensions|tryList'] = function JsonExtensions$124tryList($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 586, 18, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 586, 33, "propertyName");
    return T$.ListN()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|get#tryList'] = function JsonExtensions$124get$35tryList($this) {
    if ($this == null) dart.nullFailed(I[380], 586, 18, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 586, 33, "propertyName");
      return _engine['JsonExtensions|tryList']($this, propertyName);
    }, T$13.StringToListN());
  };
  _engine['JsonExtensions|castList'] = function JsonExtensions$124castList(T, $this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 590, 11, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 590, 30, "propertyName");
    return T$.List()[_as]($this[$_get](propertyName))[$cast](T);
  };
  _engine['JsonExtensions|get#castList'] = function JsonExtensions$124get$35castList($this) {
    if ($this == null) dart.nullFailed(I[380], 590, 11, "#this");
    return dart.gFn((T, propertyName) => {
      if (propertyName == null) dart.nullFailed(I[380], 590, 30, "propertyName");
      return _engine['JsonExtensions|castList'](T, $this, propertyName);
    }, T$13.StringToListOfT(), dart.constList([T$.dynamic()], T$.dynamic()));
  };
  _engine['JsonExtensions|tryCastList'] = function JsonExtensions$124tryCastList(T, $this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 594, 12, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 594, 34, "propertyName");
    let rawList = _engine['JsonExtensions|tryList']($this, propertyName);
    if (rawList == null) {
      return null;
    }
    return rawList[$cast](T);
  };
  _engine['JsonExtensions|get#tryCastList'] = function JsonExtensions$124get$35tryCastList($this) {
    if ($this == null) dart.nullFailed(I[380], 594, 12, "#this");
    return dart.gFn((T, propertyName) => {
      if (propertyName == null) dart.nullFailed(I[380], 594, 34, "propertyName");
      return _engine['JsonExtensions|tryCastList'](T, $this, propertyName);
    }, T$13.StringToListNOfT(), dart.constList([T$.dynamic()], T$.dynamic()));
  };
  _engine['JsonExtensions|readString'] = function JsonExtensions$124readString($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 602, 10, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 602, 28, "propertyName");
    return T$.String()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|get#readString'] = function JsonExtensions$124get$35readString($this) {
    if ($this == null) dart.nullFailed(I[380], 602, 10, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 602, 28, "propertyName");
      return _engine['JsonExtensions|readString']($this, propertyName);
    }, T$.StringToString());
  };
  _engine['JsonExtensions|tryString'] = function JsonExtensions$124tryString($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 606, 11, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 606, 28, "propertyName");
    return T$.StringN()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|get#tryString'] = function JsonExtensions$124get$35tryString($this) {
    if ($this == null) dart.nullFailed(I[380], 606, 11, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 606, 28, "propertyName");
      return _engine['JsonExtensions|tryString']($this, propertyName);
    }, T$.StringToStringN());
  };
  _engine['JsonExtensions|get#readBool'] = function JsonExtensions$124get$35readBool($this) {
    if ($this == null) dart.nullFailed(I[380], 610, 8, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 610, 24, "propertyName");
      return _engine['JsonExtensions|readBool']($this, propertyName);
    }, T$.StringTobool());
  };
  _engine['JsonExtensions|readBool'] = function JsonExtensions$124readBool($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 610, 8, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 610, 24, "propertyName");
    return T$.bool()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|get#tryBool'] = function JsonExtensions$124get$35tryBool($this) {
    if ($this == null) dart.nullFailed(I[380], 614, 9, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 614, 24, "propertyName");
      return _engine['JsonExtensions|tryBool']($this, propertyName);
    }, T$13.StringToboolN());
  };
  _engine['JsonExtensions|tryBool'] = function JsonExtensions$124tryBool($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 614, 9, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 614, 24, "propertyName");
    return T$.boolN()[_as]($this[$_get](propertyName));
  };
  _engine['JsonExtensions|readInt'] = function JsonExtensions$124readInt($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 618, 7, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 618, 22, "propertyName");
    return T$.num()[_as]($this[$_get](propertyName))[$toInt]();
  };
  _engine['JsonExtensions|get#readInt'] = function JsonExtensions$124get$35readInt($this) {
    if ($this == null) dart.nullFailed(I[380], 618, 7, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 618, 22, "propertyName");
      return _engine['JsonExtensions|readInt']($this, propertyName);
    }, T$2.StringToint());
  };
  _engine['JsonExtensions|tryInt'] = function JsonExtensions$124tryInt($this, propertyName) {
    let t$361810;
    if ($this == null) dart.nullFailed(I[380], 622, 8, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 622, 22, "propertyName");
    t$361810 = T$3.numN()[_as]($this[$_get](propertyName));
    return t$361810 == null ? null : t$361810[$toInt]();
  };
  _engine['JsonExtensions|get#tryInt'] = function JsonExtensions$124get$35tryInt($this) {
    if ($this == null) dart.nullFailed(I[380], 622, 8, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 622, 22, "propertyName");
      return _engine['JsonExtensions|tryInt']($this, propertyName);
    }, T$13.StringTointN());
  };
  _engine['JsonExtensions|get#readDouble'] = function JsonExtensions$124get$35readDouble($this) {
    if ($this == null) dart.nullFailed(I[380], 626, 10, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 626, 28, "propertyName");
      return _engine['JsonExtensions|readDouble']($this, propertyName);
    }, T$12.StringTodouble());
  };
  _engine['JsonExtensions|readDouble'] = function JsonExtensions$124readDouble($this, propertyName) {
    if ($this == null) dart.nullFailed(I[380], 626, 10, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 626, 28, "propertyName");
    return T$.num()[_as]($this[$_get](propertyName))[$toDouble]();
  };
  _engine['JsonExtensions|get#tryDouble'] = function JsonExtensions$124get$35tryDouble($this) {
    if ($this == null) dart.nullFailed(I[380], 630, 11, "#this");
    return dart.fn(propertyName => {
      if (propertyName == null) dart.nullFailed(I[380], 630, 28, "propertyName");
      return _engine['JsonExtensions|tryDouble']($this, propertyName);
    }, T$0.StringTodoubleN());
  };
  _engine['JsonExtensions|tryDouble'] = function JsonExtensions$124tryDouble($this, propertyName) {
    let t$361815;
    if ($this == null) dart.nullFailed(I[380], 630, 11, "#this");
    if (propertyName == null) dart.nullFailed(I[380], 630, 28, "propertyName");
    t$361815 = T$3.numN()[_as]($this[$_get](propertyName));
    return t$361815 == null ? null : t$361815[$toDouble]();
  };
  _engine.readViewId = function readViewId($arguments) {
    let viewId = _engine.tryViewId($arguments);
    if (viewId == null) {
      dart.throw(core.Exception.new("Could not find a `viewId` in the arguments: " + dart.str($arguments)));
    }
    return viewId;
  };
  _engine.tryViewId = function tryViewId($arguments) {
    if (T$.Map()[_is]($arguments)) {
      return _engine['JsonExtensions|tryInt']($arguments, "viewId");
    }
    return null;
  };
  _engine.bytesToHexString = function bytesToHexString(data) {
    if (data == null) dart.nullFailed(I[380], 665, 35, "data");
    return data[$map](T$.String(), dart.fn(byte => {
      if (byte == null) dart.nullFailed(I[380], 667, 17, "byte");
      return "0x" + byte[$toRadixString](16)[$padLeft](2, "0");
    }, T$.intToString()))[$join](" ");
  };
  _engine.setElementStyle = function setElementStyle(element, name, value) {
    if (element == null) dart.nullFailed(I[380], 675, 33, "element");
    if (name == null) dart.nullFailed(I[380], 675, 49, "name");
    if (value == null) {
      _engine['DomCSSStyleDeclarationExtension|removeProperty'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), name);
    } else {
      _engine['DomCSSStyleDeclarationExtension|setProperty'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), name, value);
    }
  };
  _engine.setClipPath = function setClipPath(element, value) {
    if (element == null) dart.nullFailed(I[380], 683, 29, "element");
    if (ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit) {
      if (value == null) {
        _engine['DomCSSStyleDeclarationExtension|removeProperty'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "-webkit-clip-path");
      } else {
        _engine['DomCSSStyleDeclarationExtension|setProperty'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "-webkit-clip-path", value);
      }
    }
    if (value == null) {
      _engine['DomCSSStyleDeclarationExtension|removeProperty'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "clip-path");
    } else {
      _engine['DomCSSStyleDeclarationExtension|setProperty'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), element, "style"), "clip-path", value);
    }
  };
  _engine.setThemeColor = function setThemeColor(color) {
    let t$361815, t$361815$;
    let theme = T$9.DomHTMLMetaElementN()[_as](_engine['DomDocumentExtension|querySelector'](dart.jsInteropNullCheck(dart.global.document), "#flutterweb-theme"));
    if (color != null) {
      if (theme == null) {
        theme = (t$361815 = _engine.createDomHTMLMetaElement(), (() => {
          _engine['DomElementExtension|set#id'](t$361815, "flutterweb-theme");
          _engine['DomHTMLMetaElementExtension|set#name'](t$361815, "theme-color");
          return t$361815;
        })());
        dart.nullCheck(js_util.getProperty(T$12.DomHTMLHeadElementN(), dart.jsInteropNullCheck(dart.global.document), "head")).append(theme);
      }
      _engine['DomHTMLMetaElementExtension|set#content'](theme, _engine['CssColor|toCssString'](color));
    } else {
      t$361815$ = theme;
      t$361815$ == null ? null : t$361815$.remove();
    }
  };
  _engine.drawEllipse = function drawEllipse(context, centerX, centerY, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise) {
    if (context == null) dart.nullFailed(I[380], 719, 33, "context");
    if (centerX == null) dart.nullFailed(I[380], 720, 12, "centerX");
    if (centerY == null) dart.nullFailed(I[380], 721, 12, "centerY");
    if (radiusX == null) dart.nullFailed(I[380], 722, 12, "radiusX");
    if (radiusY == null) dart.nullFailed(I[380], 723, 12, "radiusY");
    if (rotation == null) dart.nullFailed(I[380], 724, 12, "rotation");
    if (startAngle == null) dart.nullFailed(I[380], 725, 12, "startAngle");
    if (endAngle == null) dart.nullFailed(I[380], 726, 12, "endAngle");
    if (antiClockwise == null) dart.nullFailed(I[380], 727, 10, "antiClockwise");
    _engine._ellipseFeatureDetected == null ? _engine._ellipseFeatureDetected = _engine.getJsProperty(T$.ObjectN(), context, "ellipse") != null : null;
    if (dart.nullCheck(_engine._ellipseFeatureDetected)) {
      _engine['DomCanvasRenderingContext2DExtension|ellipse'](context, centerX, centerY, radiusX, radiusY, rotation, startAngle, endAngle, antiClockwise);
    } else {
      context.save();
      _engine['DomCanvasRenderingContext2DExtension|translate'](context, centerX, centerY);
      _engine['DomCanvasRenderingContext2DExtension|rotate'](context, rotation);
      _engine['DomCanvasRenderingContext2DExtension|scale'](context, radiusX, radiusY);
      _engine['DomCanvasRenderingContext2DExtension|arc'](context, 0, 0, 1, startAngle, endAngle, antiClockwise);
      context.restore();
    }
  };
  _engine.removeAllChildren = function removeAllChildren(node) {
    if (node == null) dart.nullFailed(I[380], 744, 32, "node");
    while (js_util.getProperty(T$9.DomNodeN(), node, "lastChild") != null) {
      _engine['DomNodeExtension|remove'](dart.nullCheck(js_util.getProperty(T$9.DomNodeN(), node, "lastChild")));
    }
  };
  _engine['FirstWhereOrNull|firstWhereOrNull'] = function FirstWhereOrNull$124firstWhereOrNull(T, $this, test) {
    if ($this == null) dart.nullFailed(I[380], 755, 6, "#this");
    if (test == null) dart.nullFailed(I[380], 755, 48, "test");
    for (let element of $this) {
      if (dart.test(test(element))) {
        return element;
      }
    }
    return null;
  };
  _engine['FirstWhereOrNull|get#firstWhereOrNull'] = function FirstWhereOrNull$124get$35firstWhereOrNull(T, $this) {
    if ($this == null) dart.nullFailed(I[380], 755, 6, "#this");
    return dart.fn(test => {
      if (test == null) dart.nullFailed(I[380], 755, 48, "test");
      return _engine['FirstWhereOrNull|firstWhereOrNull'](T, $this, test);
    }, T[_eval]("0?(core|bool(0))"));
  };
  _engine.tileModeString = function tileModeString(tileMode) {
    if (tileMode == null) dart.nullFailed(I[380], 867, 35, "tileMode");
    switch (tileMode) {
      case C[586] || CT.C586:
        {
          return "clamp";
        }
      case C[802] || CT.C802:
        {
          return "mirror";
        }
      case C[801] || CT.C801:
        {
          return "repeated";
        }
      case C[803] || CT.C803:
        {
          return "decal";
        }
      default:
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch statement with a non-nullable type."));
    }
  };
  _engine.rectIsValid = function rectIsValid(rect) {
    if (rect == null) dart.nullFailed(I[404], 8, 26, "rect");
    if (!!(rect.left[$isNaN] || rect.right[$isNaN] || rect.top[$isNaN] || rect.bottom[$isNaN])) dart.assertFailed("Rect argument contained a NaN value.", I[404], 10, 7, "!(rect.left.isNaN ||\n          rect.right.isNaN ||\n          rect.top.isNaN ||\n          rect.bottom.isNaN)");
    return true;
  };
  _engine.rrectIsValid = function rrectIsValid(rrect) {
    if (rrect == null) dart.nullFailed(I[404], 18, 28, "rrect");
    if (!!(rrect.left[$isNaN] || rrect.right[$isNaN] || rrect.top[$isNaN] || rrect.bottom[$isNaN])) dart.assertFailed("RRect argument contained a NaN value.", I[404], 20, 7, "!(rrect.left.isNaN ||\n          rrect.right.isNaN ||\n          rrect.top.isNaN ||\n          rrect.bottom.isNaN)");
    return true;
  };
  _engine.offsetIsValid = function offsetIsValid(offset) {
    if (offset == null) dart.nullFailed(I[404], 28, 30, "offset");
    if (!(!offset.dx[$isNaN] && !offset.dy[$isNaN])) dart.assertFailed("Offset argument contained a NaN value.", I[404], 29, 10, "!offset.dx.isNaN && !offset.dy.isNaN");
    return true;
  };
  _engine.matrix4IsValid = function matrix4IsValid(matrix4) {
    if (matrix4 == null) dart.nullFailed(I[404], 34, 33, "matrix4");
    if (!(matrix4[$length] === 16)) dart.assertFailed("Matrix4 must have 16 entries.", I[404], 35, 10, "matrix4.length == 16");
    return true;
  };
  _engine.radiusIsValid = function radiusIsValid(radius) {
    if (radius == null) dart.nullFailed(I[404], 39, 30, "radius");
    if (!(!radius.x[$isNaN] && !radius.y[$isNaN])) dart.assertFailed("Radius argument contained a NaN value.", I[404], 40, 10, "!radius.x.isNaN && !radius.y.isNaN");
    return true;
  };
  _engine.validateColorStops = function validateColorStops(colors, colorStops) {
    if (colors == null) dart.nullFailed(I[404], 46, 40, "colors");
    if (colorStops == null) {
      if (colors[$length] !== 2) {
        dart.throw(new core.ArgumentError.new("\"colors\" must have length 2 if \"colorStops\" is omitted."));
      }
    } else {
      if (colors[$length] != colorStops[$length]) {
        dart.throw(new core.ArgumentError.new("\"colors\" and \"colorStops\" arguments must have equal length."));
      }
    }
  };
  _engine['Vector3Extension|get#length'] = function Vector3Extension$124get$35length($this) {
    if ($this == null) dart.nullFailed(I[381], 1072, 14, "#this");
    return math.sqrt(_engine['Vector3Extension|get#length2']($this));
  };
  _engine['Vector3Extension|get#length2'] = function Vector3Extension$124get$35length2($this) {
    if ($this == null) dart.nullFailed(I[381], 1075, 14, "#this");
    return dart.notNull($this.x) * dart.notNull($this.x) + dart.notNull($this.y) * dart.notNull($this.y) + dart.notNull($this.z) * dart.notNull($this.z);
  };
  _engine.toMatrix32 = function toMatrix32(matrix64) {
    if (matrix64 == null) dart.nullFailed(I[381], 1092, 36, "matrix64");
    let matrix32 = _native_typed_data.NativeFloat32List.new(16);
    matrix32[$_set](15, matrix64[$_get](15));
    matrix32[$_set](14, matrix64[$_get](14));
    matrix32[$_set](13, matrix64[$_get](13));
    matrix32[$_set](12, matrix64[$_get](12));
    matrix32[$_set](11, matrix64[$_get](11));
    matrix32[$_set](10, matrix64[$_get](10));
    matrix32[$_set](9, matrix64[$_get](9));
    matrix32[$_set](8, matrix64[$_get](8));
    matrix32[$_set](7, matrix64[$_get](7));
    matrix32[$_set](6, matrix64[$_get](6));
    matrix32[$_set](5, matrix64[$_get](5));
    matrix32[$_set](4, matrix64[$_get](4));
    matrix32[$_set](3, matrix64[$_get](3));
    matrix32[$_set](2, matrix64[$_get](2));
    matrix32[$_set](1, matrix64[$_get](1));
    matrix32[$_set](0, matrix64[$_get](0));
    return matrix32;
  };
  _engine.toMatrix64 = function toMatrix64(matrix32) {
    if (matrix32 == null) dart.nullFailed(I[381], 1125, 36, "matrix32");
    let matrix64 = _native_typed_data.NativeFloat64List.new(16);
    matrix64[$_set](15, matrix32[$_get](15));
    matrix64[$_set](14, matrix32[$_get](14));
    matrix64[$_set](13, matrix32[$_get](13));
    matrix64[$_set](12, matrix32[$_get](12));
    matrix64[$_set](11, matrix32[$_get](11));
    matrix64[$_set](10, matrix32[$_get](10));
    matrix64[$_set](9, matrix32[$_get](9));
    matrix64[$_set](8, matrix32[$_get](8));
    matrix64[$_set](7, matrix32[$_get](7));
    matrix64[$_set](6, matrix32[$_get](6));
    matrix64[$_set](5, matrix32[$_get](5));
    matrix64[$_set](4, matrix32[$_get](4));
    matrix64[$_set](3, matrix32[$_get](3));
    matrix64[$_set](2, matrix32[$_get](2));
    matrix64[$_set](1, matrix32[$_get](1));
    matrix64[$_set](0, matrix32[$_get](0));
    return matrix64;
  };
  _engine._attachShadowRoot = function _attachShadowRoot(element) {
    if (element == null) dart.nullFailed(I[386], 204, 44, "element");
    if (!(_engine.getJsProperty(T$.ObjectN(), element, "attachShadow") != null)) dart.assertFailed("ShadowDOM is not supported in this browser.", I[386], 206, 5, "getJsProperty<Object?>(element, 'attachShadow') != null");
    return _engine['DomElementExtension|attachShadow'](element, new (G.IdentityMapOfString$dynamic()).from(["mode", "open", "delegatesFocus", false]));
  };
  _engine.registerElementForCleanup = function registerElementForCleanup(element) {
    let t$361819;
    if (element == null) dart.nullFailed(I[391], 69, 43, "element");
    t$361819 = _engine._hotRestartCache;
    t$361819 == null ? null : t$361819.registerElement(element);
  };
  _engine.applyGlobalCssRulesToSheet = function applyGlobalCssRulesToSheet(styleElement, opts) {
    if (styleElement == null) dart.nullFailed(I[392], 74, 23, "styleElement");
    let cssSelectorPrefix = opts && 'cssSelectorPrefix' in opts ? opts.cssSelectorPrefix : "";
    if (cssSelectorPrefix == null) dart.nullFailed(I[392], 75, 10, "cssSelectorPrefix");
    let defaultCssFont = opts && 'defaultCssFont' in opts ? opts.defaultCssFont : null;
    if (defaultCssFont == null) dart.nullFailed(I[392], 76, 19, "defaultCssFont");
    _engine['DomElementExtension|appendText'](styleElement, dart.str(cssSelectorPrefix) + " " + "flt-scene-host" + " {" + "  font: " + dart.str(defaultCssFont) + ";" + "}" + dart.str(cssSelectorPrefix) + " flt-semantics input[type=range] {" + "  appearance: none;" + "  -webkit-appearance: none;" + "  width: 100%;" + "  position: absolute;" + "  border: none;" + "  top: 0;" + "  right: 0;" + "  bottom: 0;" + "  left: 0;" + "}" + dart.str(cssSelectorPrefix) + " input::selection {" + "  background-color: transparent;" + "}" + dart.str(cssSelectorPrefix) + " textarea::selection {" + "  background-color: transparent;" + "}" + dart.str(cssSelectorPrefix) + " flt-semantics input," + dart.str(cssSelectorPrefix) + " flt-semantics textarea," + dart.str(cssSelectorPrefix) + " flt-semantics [contentEditable=\"true\"] {" + "  caret-color: transparent;" + "}" + dart.str(cssSelectorPrefix) + " .flt-text-editing::placeholder {" + "  opacity: 0;" + "}" + dart.str(cssSelectorPrefix) + ":focus {" + " outline: none;" + "}");
    if (dart.test(_engine.isSafari)) {
      _engine['DomElementExtension|appendText'](styleElement, dart.str(cssSelectorPrefix) + " * {" + "  -webkit-tap-highlight-color: transparent;" + "}" + dart.str(cssSelectorPrefix) + " flt-semantics input[type=range]::-webkit-slider-thumb {" + "  -webkit-appearance: none;" + "}");
    }
    if (dart.test(_engine.isFirefox)) {
      _engine['DomElementExtension|appendText'](styleElement, dart.str(cssSelectorPrefix) + " flt-paragraph," + dart.str(cssSelectorPrefix) + " flt-span {" + "  line-height: 100%;" + "}");
    }
    if (dart.test(_engine.browserHasAutofillOverlay())) {
      _engine['DomElementExtension|appendText'](styleElement, dart.str(cssSelectorPrefix) + " .transparentTextEditing:-webkit-autofill," + dart.str(cssSelectorPrefix) + " .transparentTextEditing:-webkit-autofill:hover," + dart.str(cssSelectorPrefix) + " .transparentTextEditing:-webkit-autofill:focus," + dart.str(cssSelectorPrefix) + " .transparentTextEditing:-webkit-autofill:active {" + "  opacity: 0 !important;" + "}");
    }
    if (dart.test(_engine.isEdge)) {
      try {
        _engine['DomElementExtension|appendText'](styleElement, dart.str(cssSelectorPrefix) + " input::-ms-reveal {" + "  display: none;" + "}");
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$9.DomException$1()[_is](e)) {
          _engine['DomConsoleExtension|warn'](js_util.getProperty(T$9.DomConsole(), dart.jsInteropNullCheck(dart.global.window), "console"), e);
          if (!dart.test(dart.fn(() => {
            _engine['DomElementExtension|appendText'](styleElement, dart.str(cssSelectorPrefix) + " input.fallback-for-fakey-browser-in-ci {" + "  display: none;" + "}");
            return true;
          }, T$.VoidTobool())())) dart.assertFailed(null, I[392], 184, 14, "() {\n        styleElement.appendText(\n          '$cssSelectorPrefix input.fallback-for-fakey-browser-in-ci {'\n          '  display: none;'\n          '}'\n        );\n        return true;\n      }()");
        } else
          throw t$36$35e;
      }
    }
  };
  _engine.ensureImplicitViewInitialized = function ensureImplicitViewInitialized(opts) {
    let hostElement = opts && 'hostElement' in opts ? opts.hostElement : null;
    if (_engine._window == null) {
      _engine._window = _engine.EngineFlutterView.implicit(_engine.EnginePlatformDispatcher.instance, hostElement);
      _engine.EnginePlatformDispatcher.instance.viewManager.registerView(dart.nullCheck(_engine._window));
    }
    return dart.nullCheck(_engine._window);
  };
  _engine._computeMinConstraintValue = function _computeMinConstraintValue(desired, available) {
    let t$361820;
    if (available == null) dart.nullFailed(I[393], 851, 59, "available");
    if (!(desired == null || dart.notNull(desired) >= 0)) dart.assertFailed("Minimum constraint must be >= 0 if set.", I[393], 852, 10, "desired == null || desired >= 0");
    if (!(desired == null || desired[$isFinite])) dart.assertFailed("Minimum constraint must be finite.", I[393], 853, 10, "desired == null || desired.isFinite");
    t$361820 = desired;
    return t$361820 == null ? available : t$361820;
  };
  _engine._computeMaxConstraintValue = function _computeMaxConstraintValue(desired, available) {
    let t$361820;
    if (available == null) dart.nullFailed(I[393], 869, 59, "available");
    if (!(desired == null || dart.notNull(desired) >= 0)) dart.assertFailed("Maximum constraint must be >= 0 if set.", I[393], 870, 10, "desired == null || desired >= 0");
    t$361820 = desired;
    return t$361820 == null ? available : t$361820;
  };
  dart.copyProperties(_engine, {
    get isDesktop() {
      return ui_web.browser.isDesktop;
    },
    get isMobile() {
      return ui_web.browser.isMobile;
    },
    get isChromium() {
      return ui_web.browser.isChromium;
    },
    get isSafari() {
      return ui_web.browser.isSafari;
    },
    get isFirefox() {
      return ui_web.browser.isFirefox;
    },
    get isEdge() {
      return ui_web.browser.isEdge;
    },
    get isWasm() {
      return ui_web.browser.isWasm;
    },
    get _isIOS() {
      return ui_web.browser.operatingSystem == ui_web.OperatingSystem.iOs;
    },
    get isMacOrIOS() {
      return dart.test(_engine._isIOS) || ui_web.browser.operatingSystem == ui_web.OperatingSystem.macOs;
    },
    get isIOS15() {
      let t$361820;
      t$361820 = _engine.debugIsIOS15;
      return t$361820 == null ? dart.test(_engine._isIOS) && ui_web.browser.userAgent[$contains]("OS 15_") : t$361820;
    },
    get isChrome110OrOlder() {
      if (_engine.debugIsChrome110OrOlder != null) {
        return dart.nullCheck(_engine.debugIsChrome110OrOlder);
      }
      if (_engine._cachedIsChrome110OrOlder != null) {
        return dart.nullCheck(_engine._cachedIsChrome110OrOlder);
      }
      let chromeRegexp = core.RegExp.new("Chrom(e|ium)\\/([0-9]+)\\.");
      let match = chromeRegexp.firstMatch(ui_web.browser.userAgent);
      if (match != null) {
        let chromeVersion = core.int.parse(dart.nullCheck(match.group(2)));
        return _engine._cachedIsChrome110OrOlder = dart.notNull(chromeVersion) <= 110;
      }
      return _engine._cachedIsChrome110OrOlder = false;
    },
    get isIosSafari() {
      return dart.test(_engine.debugEmulateIosSafari) || dart.test(_engine._isActualIosSafari);
    },
    get _isActualIosSafari() {
      return ui_web.browser.browserEngine == ui_web.BrowserEngine.webkit && ui_web.browser.operatingSystem == ui_web.OperatingSystem.iOs;
    },
    get webGLVersion() {
      let t$361820;
      t$361820 = _engine._cachedWebGLVersion;
      return t$361820 == null ? _engine._cachedWebGLVersion = _engine._detectWebGLVersion() : t$361820;
    },
    get _workAroundBug91333() {
      return _engine._isIOS;
    },
    get browserSupportsCanvaskitChromium() {
      return js_util.getProperty(T$.ObjectN(), dart.jsInteropNullCheck(dart.global.Intl), "v8BreakIterator") != null && js_util.getProperty(T$.ObjectN(), dart.jsInteropNullCheck(dart.global.Intl), "Segmenter") != null;
    },
    get canvasKit() {
      let t$361820;
      return dart.test(_engine['_#canvasKit#isSet']) ? (t$361820 = _engine['_#canvasKit'], t$361820) : dart.throw(new _internal.LateError.fieldNI("canvasKit"));
    },
    set canvasKit(canvasKit$35param) {
      if (canvasKit$35param == null) dart.nullFailed(I[231], 17, 16, "canvasKit#param");
      _engine['_#canvasKit#isSet'] = true;
      _engine['_#canvasKit'] = canvasKit$35param;
    },
    get _enableCanvasKitChromiumInAutoMode() {
      return _engine.browserSupportsCanvaskitChromium;
    },
    get _canvasKitBaseUrl() {
      return _engine.configuration.canvasKitBaseUrl;
    },
    get _canvasKitJsUrls() {
      return _engine.getCanvasKitJsFileNames(_engine.configuration.canvasKitVariant)[$map](T$.String(), dart.fn(filename => {
        if (filename == null) dart.nullFailed(I[231], 3642, 13, "filename");
        return dart.str(_engine._canvasKitBaseUrl) + dart.str(filename);
      }, T$.StringToString()));
    },
    get configuration() {
      let t$361820;
      if (_engine._debugConfiguration != null) {
        return dart.nullCheck(_engine._debugConfiguration);
      }
      t$361820 = _engine._configuration;
      return t$361820 == null ? _engine._configuration = new _engine.FlutterConfiguration.legacy(dart.global.window.flutterConfiguration) : t$361820;
    },
    get _requestedRendererType() {
      let t$361820;
      t$361820 = dart.global.window.flutterWebRenderer;
      return t$361820 == null ? null : js_interop['JSStringToString|get#toDart'](t$361820);
    },
    get browserSupportsCreateImageBitmap() {
      return dart.global.window.createImageBitmap != null && !dart.test(_engine.isChrome110OrOlder) && !dart.test(_engine.debugDisableCreateImageBitmapSupport);
    },
    get recycledCanvases() {
      return _engine._recycledCanvases;
    },
    get _jsImageDecodeFunction() {
      return _engine.getJsProperty(T$.ObjectN(), _engine.getJsProperty(T$.Object(), _engine.getJsProperty(T$.Object(), dart.jsInteropNullCheck(dart.global.window), "Image"), "prototype"), "decode");
    },
    get buildMode() {
      return "debug";
    },
    get initializationState() {
      return _engine._initializationState;
    },
    get engineAssetManager() {
      let t$361820;
      t$361820 = _engine._debugAssetManager;
      return t$361820 == null ? dart.nullCheck(_engine._assetManager) : t$361820;
    },
    set debugOnlyAssetManager(manager) {
      return _engine._debugAssetManager = manager;
    },
    get debugDisableFontFallbacks() {
      return _engine._debugDisableFontFallbacks;
    },
    set debugDisableFontFallbacks(value) {
      if (value == null) dart.nullFailed(I[314], 275, 36, "value");
      _engine._debugDisableFontFallbacks = value;
    },
    get _logContainer() {
      let t$361820;
      return dart.test(_engine['_#_logContainer#isSet']) ? (t$361820 = _engine['_#_logContainer'], t$361820) : dart.throw(new _internal.LateError.fieldNI("_logContainer"));
    },
    set _logContainer(_logContainer$35param) {
      if (_logContainer$35param == null) dart.nullFailed(I[324], 8, 17, "_logContainer#param");
      _engine['_#_logContainer#isSet'] = true;
      _engine['_#_logContainer'] = _logContainer$35param;
    },
    get renderer() {
      return _engine._renderer;
    },
    get windowHasFocus() {
      return T$.bool()[_as](dart.jsInteropNullCheck(dart.global.document).hasFocus());
    },
    get _imageDecoderConstructor() {
      let t$361820;
      t$361820 = dart.global.window.ImageDecoder;
      return t$361820 == null ? null : _engine['JSAnyToObjectExtension|get#toObjectShallow'](t$361820);
    },
    get _defaultBrowserSupportsImageDecoder() {
      return true && _engine._imageDecoderConstructor != null && dart.test(_engine._isBrowserImageDecoderStable);
    },
    get _isBrowserImageDecoderStable() {
      return ui_web.browser.browserEngine == ui_web.BrowserEngine.blink;
    },
    get lineLookup() {
      return _engine.ensureLineLookupInitialized();
    },
    get _fallbackFontFamily() {
      if (dart.test(_engine.isIOS15)) {
        return "BlinkMacSystemFont";
      }
      if (dart.test(_engine.isMacOrIOS)) {
        return "-apple-system, BlinkMacSystemFont";
      }
      return "Arial";
    },
    get window() {
      if (!(_engine._window != null)) dart.assertFailed("Trying to access the implicit FlutterView, but it is not available.\nNote: the implicit FlutterView is not available in multi-view mode.", I[393], 693, 5, "_window != null");
      return dart.nullCheck(_engine._window);
    }
  });
  dart.defineLazy(_engine, {
    /*_engine.debugIsIOS15*/get debugIsIOS15() {
      return null;
    },
    set debugIsIOS15(value) {},
    /*_engine._cachedIsChrome110OrOlder*/get _cachedIsChrome110OrOlder() {
      return null;
    },
    set _cachedIsChrome110OrOlder(value) {},
    /*_engine.debugIsChrome110OrOlder*/get debugIsChrome110OrOlder() {
      return null;
    },
    set debugIsChrome110OrOlder(value) {},
    /*_engine.debugEmulateIosSafari*/get debugEmulateIosSafari() {
      return false;
    },
    set debugEmulateIosSafari(value) {
      if (value == null) dart.nullFailed(I[405], 92, 6, "debugEmulateIosSafari");
    },
    /*_engine._cachedWebGLVersion*/get _cachedWebGLVersion() {
      return null;
    },
    set _cachedWebGLVersion(value) {},
    /*_engine._clipOpIntersect*/get _clipOpIntersect() {
      return js_util.getProperty(T$13.SkClipOp(), js_util.getProperty(T$13.SkClipOpEnum(), _engine.canvasKit, "ClipOp"), "Intersect");
    },
    /*_engine['_#canvasKit']*/get ['_#canvasKit']() {
      return null;
    },
    set ['_#canvasKit'](value) {},
    /*_engine['_#canvasKit#isSet']*/get ['_#canvasKit#isSet']() {
      return false;
    },
    set ['_#canvasKit#isSet'](value) {
      if (value == null) dart.nullFailed(I[231], 17, 16, "_#canvasKit#isSet");
    },
    /*_engine._skFontSlants*/get _skFontSlants() {
      return G$.JSArrayOfSkFontSlant().of([js_util.getProperty(T$13.SkFontSlant(), js_util.getProperty(T$13.SkFontSlantEnum(), _engine.canvasKit, "FontSlant"), "Upright"), js_util.getProperty(T$13.SkFontSlant(), js_util.getProperty(T$13.SkFontSlantEnum(), _engine.canvasKit, "FontSlant"), "Italic")]);
    },
    /*_engine._skFontWeights*/get _skFontWeights() {
      return G$.JSArrayOfSkFontWeight().of([js_util.getProperty(T$13.SkFontWeight(), js_util.getProperty(T$13.SkFontWeightEnum(), _engine.canvasKit, "FontWeight"), "Thin"), js_util.getProperty(T$13.SkFontWeight(), js_util.getProperty(T$13.SkFontWeightEnum(), _engine.canvasKit, "FontWeight"), "ExtraLight"), js_util.getProperty(T$13.SkFontWeight(), js_util.getProperty(T$13.SkFontWeightEnum(), _engine.canvasKit, "FontWeight"), "Light"), js_util.getProperty(T$13.SkFontWeight(), js_util.getProperty(T$13.SkFontWeightEnum(), _engine.canvasKit, "FontWeight"), "Normal"), js_util.getProperty(T$13.SkFontWeight(), js_util.getProperty(T$13.SkFontWeightEnum(), _engine.canvasKit, "FontWeight"), "Medium"), js_util.getProperty(T$13.SkFontWeight(), js_util.getProperty(T$13.SkFontWeightEnum(), _engine.canvasKit, "FontWeight"), "SemiBold"), js_util.getProperty(T$13.SkFontWeight(), js_util.getProperty(T$13.SkFontWeightEnum(), _engine.canvasKit, "FontWeight"), "Bold"), js_util.getProperty(T$13.SkFontWeight(), js_util.getProperty(T$13.SkFontWeightEnum(), _engine.canvasKit, "FontWeight"), "ExtraBold"), js_util.getProperty(T$13.SkFontWeight(), js_util.getProperty(T$13.SkFontWeightEnum(), _engine.canvasKit, "FontWeight"), "ExtraBlack")]);
    },
    /*_engine._skAffinitys*/get _skAffinitys() {
      return G$.JSArrayOfSkAffinity().of([js_util.getProperty(T$13.SkAffinity(), js_util.getProperty(T$13.SkAffinityEnum(), _engine.canvasKit, "Affinity"), "Upstream"), js_util.getProperty(T$13.SkAffinity(), js_util.getProperty(T$13.SkAffinityEnum(), _engine.canvasKit, "Affinity"), "Downstream")]);
    },
    /*_engine._skTextDirections*/get _skTextDirections() {
      return G$.JSArrayOfSkTextDirection().of([js_util.getProperty(T$10.SkTextDirection(), js_util.getProperty(T$13.SkTextDirectionEnum(), _engine.canvasKit, "TextDirection"), "RTL"), js_util.getProperty(T$10.SkTextDirection(), js_util.getProperty(T$13.SkTextDirectionEnum(), _engine.canvasKit, "TextDirection"), "LTR")]);
    },
    /*_engine._skTextAligns*/get _skTextAligns() {
      return G$.JSArrayOfSkTextAlign().of([js_util.getProperty(T$13.SkTextAlign(), js_util.getProperty(T$13.SkTextAlignEnum(), _engine.canvasKit, "TextAlign"), "Left"), js_util.getProperty(T$13.SkTextAlign(), js_util.getProperty(T$13.SkTextAlignEnum(), _engine.canvasKit, "TextAlign"), "Right"), js_util.getProperty(T$13.SkTextAlign(), js_util.getProperty(T$13.SkTextAlignEnum(), _engine.canvasKit, "TextAlign"), "Center"), js_util.getProperty(T$13.SkTextAlign(), js_util.getProperty(T$13.SkTextAlignEnum(), _engine.canvasKit, "TextAlign"), "Justify"), js_util.getProperty(T$13.SkTextAlign(), js_util.getProperty(T$13.SkTextAlignEnum(), _engine.canvasKit, "TextAlign"), "Start"), js_util.getProperty(T$13.SkTextAlign(), js_util.getProperty(T$13.SkTextAlignEnum(), _engine.canvasKit, "TextAlign"), "End")]);
    },
    /*_engine._skTextHeightBehaviors*/get _skTextHeightBehaviors() {
      return G$.JSArrayOfSkTextHeightBehavior().of([js_util.getProperty(T$13.SkTextHeightBehavior(), js_util.getProperty(T$13.SkTextHeightBehaviorEnum(), _engine.canvasKit, "TextHeightBehavior"), "All"), js_util.getProperty(T$13.SkTextHeightBehavior(), js_util.getProperty(T$13.SkTextHeightBehaviorEnum(), _engine.canvasKit, "TextHeightBehavior"), "DisableFirstAscent"), js_util.getProperty(T$13.SkTextHeightBehavior(), js_util.getProperty(T$13.SkTextHeightBehaviorEnum(), _engine.canvasKit, "TextHeightBehavior"), "DisableLastDescent"), js_util.getProperty(T$13.SkTextHeightBehavior(), js_util.getProperty(T$13.SkTextHeightBehaviorEnum(), _engine.canvasKit, "TextHeightBehavior"), "DisableAll")]);
    },
    /*_engine._skRectHeightStyles*/get _skRectHeightStyles() {
      return G$.JSArrayOfSkRectHeightStyle().of([js_util.getProperty(T$13.SkRectHeightStyle(), js_util.getProperty(T$13.SkRectHeightStyleEnum(), _engine.canvasKit, "RectHeightStyle"), "Tight"), js_util.getProperty(T$13.SkRectHeightStyle(), js_util.getProperty(T$13.SkRectHeightStyleEnum(), _engine.canvasKit, "RectHeightStyle"), "Max"), js_util.getProperty(T$13.SkRectHeightStyle(), js_util.getProperty(T$13.SkRectHeightStyleEnum(), _engine.canvasKit, "RectHeightStyle"), "IncludeLineSpacingMiddle"), js_util.getProperty(T$13.SkRectHeightStyle(), js_util.getProperty(T$13.SkRectHeightStyleEnum(), _engine.canvasKit, "RectHeightStyle"), "IncludeLineSpacingTop"), js_util.getProperty(T$13.SkRectHeightStyle(), js_util.getProperty(T$13.SkRectHeightStyleEnum(), _engine.canvasKit, "RectHeightStyle"), "IncludeLineSpacingBottom"), js_util.getProperty(T$13.SkRectHeightStyle(), js_util.getProperty(T$13.SkRectHeightStyleEnum(), _engine.canvasKit, "RectHeightStyle"), "Strut")]);
    },
    /*_engine._skRectWidthStyles*/get _skRectWidthStyles() {
      return G$.JSArrayOfSkRectWidthStyle().of([js_util.getProperty(T$13.SkRectWidthStyle(), js_util.getProperty(T$13.SkRectWidthStyleEnum(), _engine.canvasKit, "RectWidthStyle"), "Tight"), js_util.getProperty(T$13.SkRectWidthStyle(), js_util.getProperty(T$13.SkRectWidthStyleEnum(), _engine.canvasKit, "RectWidthStyle"), "Max")]);
    },
    /*_engine._skVertexModes*/get _skVertexModes() {
      return G$.JSArrayOfSkVertexMode().of([js_util.getProperty(T$10.SkVertexMode(), js_util.getProperty(T$13.SkVertexModeEnum(), _engine.canvasKit, "VertexMode"), "Triangles"), js_util.getProperty(T$10.SkVertexMode(), js_util.getProperty(T$13.SkVertexModeEnum(), _engine.canvasKit, "VertexMode"), "TrianglesStrip"), js_util.getProperty(T$10.SkVertexMode(), js_util.getProperty(T$13.SkVertexModeEnum(), _engine.canvasKit, "VertexMode"), "TriangleFan")]);
    },
    /*_engine._skPointModes*/get _skPointModes() {
      return G$.JSArrayOfSkPointMode().of([js_util.getProperty(T$13.SkPointMode(), js_util.getProperty(T$13.SkPointModeEnum(), _engine.canvasKit, "PointMode"), "Points"), js_util.getProperty(T$13.SkPointMode(), js_util.getProperty(T$13.SkPointModeEnum(), _engine.canvasKit, "PointMode"), "Lines"), js_util.getProperty(T$13.SkPointMode(), js_util.getProperty(T$13.SkPointModeEnum(), _engine.canvasKit, "PointMode"), "Polygon")]);
    },
    /*_engine._skClipOps*/get _skClipOps() {
      return G$.JSArrayOfSkClipOp().of([js_util.getProperty(T$13.SkClipOp(), js_util.getProperty(T$13.SkClipOpEnum(), _engine.canvasKit, "ClipOp"), "Difference"), js_util.getProperty(T$13.SkClipOp(), js_util.getProperty(T$13.SkClipOpEnum(), _engine.canvasKit, "ClipOp"), "Intersect")]);
    },
    /*_engine._skFillTypes*/get _skFillTypes() {
      return G$.JSArrayOfSkFillType().of([js_util.getProperty(T$13.SkFillType(), js_util.getProperty(T$13.SkFillTypeEnum(), _engine.canvasKit, "FillType"), "Winding"), js_util.getProperty(T$13.SkFillType(), js_util.getProperty(T$13.SkFillTypeEnum(), _engine.canvasKit, "FillType"), "EvenOdd")]);
    },
    /*_engine._skPathOps*/get _skPathOps() {
      return G$.JSArrayOfSkPathOp().of([js_util.getProperty(T$13.SkPathOp(), js_util.getProperty(T$13.SkPathOpEnum(), _engine.canvasKit, "PathOp"), "Difference"), js_util.getProperty(T$13.SkPathOp(), js_util.getProperty(T$13.SkPathOpEnum(), _engine.canvasKit, "PathOp"), "Intersect"), js_util.getProperty(T$13.SkPathOp(), js_util.getProperty(T$13.SkPathOpEnum(), _engine.canvasKit, "PathOp"), "Union"), js_util.getProperty(T$13.SkPathOp(), js_util.getProperty(T$13.SkPathOpEnum(), _engine.canvasKit, "PathOp"), "XOR"), js_util.getProperty(T$13.SkPathOp(), js_util.getProperty(T$13.SkPathOpEnum(), _engine.canvasKit, "PathOp"), "ReverseDifference")]);
    },
    /*_engine._skBlurStyles*/get _skBlurStyles() {
      return G$.JSArrayOfSkBlurStyle().of([js_util.getProperty(T$13.SkBlurStyle(), js_util.getProperty(T$13.SkBlurStyleEnum(), _engine.canvasKit, "BlurStyle"), "Normal"), js_util.getProperty(T$13.SkBlurStyle(), js_util.getProperty(T$13.SkBlurStyleEnum(), _engine.canvasKit, "BlurStyle"), "Solid"), js_util.getProperty(T$13.SkBlurStyle(), js_util.getProperty(T$13.SkBlurStyleEnum(), _engine.canvasKit, "BlurStyle"), "Outer"), js_util.getProperty(T$13.SkBlurStyle(), js_util.getProperty(T$13.SkBlurStyleEnum(), _engine.canvasKit, "BlurStyle"), "Inner")]);
    },
    /*_engine._skStrokeCaps*/get _skStrokeCaps() {
      return G$.JSArrayOfSkStrokeCap().of([js_util.getProperty(T$13.SkStrokeCap(), js_util.getProperty(T$13.SkStrokeCapEnum(), _engine.canvasKit, "StrokeCap"), "Butt"), js_util.getProperty(T$13.SkStrokeCap(), js_util.getProperty(T$13.SkStrokeCapEnum(), _engine.canvasKit, "StrokeCap"), "Round"), js_util.getProperty(T$13.SkStrokeCap(), js_util.getProperty(T$13.SkStrokeCapEnum(), _engine.canvasKit, "StrokeCap"), "Square")]);
    },
    /*_engine._skPaintStyles*/get _skPaintStyles() {
      return G$.JSArrayOfSkPaintStyle().of([js_util.getProperty(T$13.SkPaintStyle(), js_util.getProperty(T$13.SkPaintStyleEnum(), _engine.canvasKit, "PaintStyle"), "Fill"), js_util.getProperty(T$13.SkPaintStyle(), js_util.getProperty(T$13.SkPaintStyleEnum(), _engine.canvasKit, "PaintStyle"), "Stroke")]);
    },
    /*_engine._skBlendModes*/get _skBlendModes() {
      return G$.JSArrayOfSkBlendMode().of([js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Clear"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Src"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Dst"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "SrcOver"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "DstOver"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "SrcIn"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "DstIn"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "SrcOut"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "DstOut"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "SrcATop"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "DstATop"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Xor"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Plus"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Modulate"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Screen"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Overlay"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Darken"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Lighten"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "ColorDodge"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "ColorBurn"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "HardLight"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "SoftLight"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Difference"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Exclusion"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Multiply"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Hue"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Saturation"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Color"), js_util.getProperty(T$13.SkBlendMode(), js_util.getProperty(T$13.SkBlendModeEnum(), _engine.canvasKit, "BlendMode"), "Luminosity")]);
    },
    /*_engine._skStrokeJoins*/get _skStrokeJoins() {
      return G$.JSArrayOfSkStrokeJoin().of([js_util.getProperty(T$13.SkStrokeJoin(), js_util.getProperty(T$13.SkStrokeJoinEnum(), _engine.canvasKit, "StrokeJoin"), "Miter"), js_util.getProperty(T$13.SkStrokeJoin(), js_util.getProperty(T$13.SkStrokeJoinEnum(), _engine.canvasKit, "StrokeJoin"), "Round"), js_util.getProperty(T$13.SkStrokeJoin(), js_util.getProperty(T$13.SkStrokeJoinEnum(), _engine.canvasKit, "StrokeJoin"), "Bevel")]);
    },
    /*_engine._skTileModes*/get _skTileModes() {
      return G$.JSArrayOfSkTileMode().of([js_util.getProperty(T$13.SkTileMode(), js_util.getProperty(T$13.SkTileModeEnum(), _engine.canvasKit, "TileMode"), "Clamp"), js_util.getProperty(T$13.SkTileMode(), js_util.getProperty(T$13.SkTileModeEnum(), _engine.canvasKit, "TileMode"), "Repeat"), js_util.getProperty(T$13.SkTileMode(), js_util.getProperty(T$13.SkTileModeEnum(), _engine.canvasKit, "TileMode"), "Mirror"), js_util.getProperty(T$13.SkTileMode(), js_util.getProperty(T$13.SkTileModeEnum(), _engine.canvasKit, "TileMode"), "Decal")]);
    },
    /*_engine._filterOptions*/get _filterOptions() {
      return new (G$.LinkedMapOfFilterQuality$CkFilterOptions()).from([ui.FilterQuality.none, {filter: js_util.getProperty(T$12.SkFilterMode(), js_util.getProperty(T$12.SkFilterModeEnum(), _engine.canvasKit, "FilterMode"), "Nearest"), mipmap: js_util.getProperty(T$12.SkMipmapMode(), js_util.getProperty(T$12.SkMipmapModeEnum(), _engine.canvasKit, "MipmapMode"), "None")}, ui.FilterQuality.low, {filter: js_util.getProperty(T$12.SkFilterMode(), js_util.getProperty(T$12.SkFilterModeEnum(), _engine.canvasKit, "FilterMode"), "Linear"), mipmap: js_util.getProperty(T$12.SkMipmapMode(), js_util.getProperty(T$12.SkMipmapModeEnum(), _engine.canvasKit, "MipmapMode"), "None")}, ui.FilterQuality.medium, {filter: js_util.getProperty(T$12.SkFilterMode(), js_util.getProperty(T$12.SkFilterModeEnum(), _engine.canvasKit, "FilterMode"), "Linear"), mipmap: js_util.getProperty(T$12.SkMipmapMode(), js_util.getProperty(T$12.SkMipmapModeEnum(), _engine.canvasKit, "MipmapMode"), "Linear")}, ui.FilterQuality.high, {B: js_interop['DoubleToJSNumber|get#toJS'](1.0 / 3), C: js_interop['DoubleToJSNumber|get#toJS'](1.0 / 3)}]);
    },
    /*_engine._skMatrixIndexToMatrix4Index*/get _skMatrixIndexToMatrix4Index() {
      return C[1087] || CT.C1087;
    },
    /*_engine._kDefaultSkColorStops*/get _kDefaultSkColorStops() {
      let t$361820;
      return t$361820 = _native_typed_data.NativeFloat32List.new(2), (() => {
        t$361820[$_set](0, 0.0);
        t$361820[$_set](1, 1.0);
        return t$361820;
      })();
    },
    /*_engine._sharedSkColor1*/get _sharedSkColor1() {
      return _engine.mallocFloat32List(4);
    },
    /*_engine._sharedSkColor2*/get _sharedSkColor2() {
      return _engine.mallocFloat32List(4);
    },
    /*_engine._sharedSkColor3*/get _sharedSkColor3() {
      return _engine.mallocFloat32List(4);
    },
    /*_engine._skTextDecorationStyles*/get _skTextDecorationStyles() {
      return G$.JSArrayOfSkTextDecorationStyle().of([js_util.getProperty(T$13.SkTextDecorationStyle(), js_util.getProperty(T$13.SkTextDecorationStyleEnum(), _engine.canvasKit, "DecorationStyle"), "Solid"), js_util.getProperty(T$13.SkTextDecorationStyle(), js_util.getProperty(T$13.SkTextDecorationStyleEnum(), _engine.canvasKit, "DecorationStyle"), "Double"), js_util.getProperty(T$13.SkTextDecorationStyle(), js_util.getProperty(T$13.SkTextDecorationStyleEnum(), _engine.canvasKit, "DecorationStyle"), "Dotted"), js_util.getProperty(T$13.SkTextDecorationStyle(), js_util.getProperty(T$13.SkTextDecorationStyleEnum(), _engine.canvasKit, "DecorationStyle"), "Dashed"), js_util.getProperty(T$13.SkTextDecorationStyle(), js_util.getProperty(T$13.SkTextDecorationStyleEnum(), _engine.canvasKit, "DecorationStyle"), "Wavy")]);
    },
    /*_engine._skTextBaselines*/get _skTextBaselines() {
      return G$.JSArrayOfSkTextBaseline().of([js_util.getProperty(T$10.SkTextBaseline(), js_util.getProperty(T$13.SkTextBaselineEnum(), _engine.canvasKit, "TextBaseline"), "Alphabetic"), js_util.getProperty(T$10.SkTextBaseline(), js_util.getProperty(T$13.SkTextBaselineEnum(), _engine.canvasKit, "TextBaseline"), "Ideographic")]);
    },
    /*_engine._skPlaceholderAlignments*/get _skPlaceholderAlignments() {
      return G$.JSArrayOfSkPlaceholderAlignment().of([js_util.getProperty(T$10.SkPlaceholderAlignment(), js_util.getProperty(T$13.SkPlaceholderAlignmentEnum(), _engine.canvasKit, "PlaceholderAlignment"), "Baseline"), js_util.getProperty(T$10.SkPlaceholderAlignment(), js_util.getProperty(T$13.SkPlaceholderAlignmentEnum(), _engine.canvasKit, "PlaceholderAlignment"), "AboveBaseline"), js_util.getProperty(T$10.SkPlaceholderAlignment(), js_util.getProperty(T$13.SkPlaceholderAlignmentEnum(), _engine.canvasKit, "PlaceholderAlignment"), "BelowBaseline"), js_util.getProperty(T$10.SkPlaceholderAlignment(), js_util.getProperty(T$13.SkPlaceholderAlignmentEnum(), _engine.canvasKit, "PlaceholderAlignment"), "Top"), js_util.getProperty(T$10.SkPlaceholderAlignment(), js_util.getProperty(T$13.SkPlaceholderAlignmentEnum(), _engine.canvasKit, "PlaceholderAlignment"), "Bottom"), js_util.getProperty(T$10.SkPlaceholderAlignment(), js_util.getProperty(T$13.SkPlaceholderAlignmentEnum(), _engine.canvasKit, "PlaceholderAlignment"), "Middle")]);
    },
    /*_engine._kFullCanvasKitJsFileName*/get _kFullCanvasKitJsFileName() {
      return "canvaskit.js";
    },
    /*_engine._kChromiumCanvasKitJsFileName*/get _kChromiumCanvasKitJsFileName() {
      return "chromium/canvaskit.js";
    },
    /*_engine._identityTransform*/get _identityTransform() {
      return _engine._computeIdentityTransform();
    },
    set _identityTransform(value) {
      if (value == null) dart.nullFailed(I[233], 84, 13, "_identityTransform");
    },
    /*_engine._robotoUrl*/get _robotoUrl() {
      return dart.str(_engine.configuration.fontFallbackBaseUrl) + "roboto/v20/KFOmCnqEu92Fr1Me5WZLCzYlKw.ttf";
    },
    set _robotoUrl(value) {
      if (value == null) dart.nullFailed(I[236], 13, 8, "_robotoUrl");
    },
    /*_engine._kNetworkImageMessage*/get _kNetworkImageMessage() {
      return "Failed to load network image.";
    },
    /*_engine._finalizationRegistry*/get _finalizationRegistry() {
      return T$13.DomFinalizationRegistry()[_as](new dart.global.window.FinalizationRegistry(js_util._functionToJS1(dart.fn(boxedUniq => {
        let uniq = T$10.UniqueRefOfObject()[_as](js_interop['ExternalDartReferenceToObject|get#toDartObject'](T$.ObjectN(), boxedUniq));
        uniq.collect();
      }, T$.ObjectNToNull()))));
    },
    set _finalizationRegistry(value) {
      if (value == null) dart.nullFailed(I[249], 22, 25, "_finalizationRegistry");
    },
    /*_engine.nativeMemoryFinalizationRegistry*/get nativeMemoryFinalizationRegistry() {
      return new _engine.NativeMemoryFinalizationRegistry.new();
    },
    set nativeMemoryFinalizationRegistry(value) {
      if (value == null) dart.nullFailed(I[249], 30, 34, "nativeMemoryFinalizationRegistry");
    },
    /*_engine.debugOverlayOptimizationBounds*/get debugOverlayOptimizationBounds() {
      return false;
    },
    set debugOverlayOptimizationBounds(value) {
      if (value == null) dart.nullFailed(I[251], 11, 6, "debugOverlayOptimizationBounds");
    },
    /*_engine._invertColorMatrix*/get _invertColorMatrix() {
      return _native_typed_data.NativeFloat32List.fromList(C[1088] || CT.C1088);
    },
    /*_engine._invertColorFilter*/get _invertColorFilter() {
      return new _engine.ManagedSkColorFilter.new(new _engine.CkMatrixColorFilter.new(_engine._invertColorMatrix));
    },
    /*_engine._kUsingMSAA*/get _kUsingMSAA() {
      return false;
    },
    /*_engine._ckRequiresClientICU*/get _ckRequiresClientICU() {
      return _engine['SkParagraphBuilderNamespaceExtension|RequiresClientICU'](js_util.getProperty(T$10.SkParagraphBuilderNamespace(), _engine.canvasKit, "ParagraphBuilder"));
    },
    /*_engine._testFonts*/get _testFonts() {
      return G.JSArrayOfString().of(["FlutterTest", "Ahem"]);
    },
    /*_engine.kSmallParagraphCacheSpec*/get kSmallParagraphCacheSpec() {
      return C[1089] || CT.C1089;
    },
    /*_engine.kMediumParagraphCacheSpec*/get kMediumParagraphCacheSpec() {
      return C[1090] || CT.C1090;
    },
    /*_engine.kLargeParagraphCacheSpec*/get kLargeParagraphCacheSpec() {
      return C[1091] || CT.C1091;
    },
    /*_engine.segmentationCache*/get segmentationCache() {
      let t$361820, t$361821;
      return t$361821 = new (G$.LruCacheOfString$RecOf__()).new(_engine.kSmallParagraphCacheSpec.cacheSize), t$361820 = new (G$.LruCacheOfString$RecOf__()).new(_engine.kMediumParagraphCacheSpec.cacheSize), dart.recordLiteral("3;large,medium,small", 0, ["large", "medium", "small"], [new (G$.LruCacheOfString$RecOf__()).new(_engine.kLargeParagraphCacheSpec.cacheSize), t$361820, t$361821]);
    },
    /*_engine._intlSegmenters*/get _intlSegmenters() {
      return new (G$.LinkedMapOfIntlSegmenterGranularity$DomSegmenter()).from([_engine.IntlSegmenterGranularity.grapheme, _engine.createIntlSegmenter({granularity: "grapheme"}), _engine.IntlSegmenterGranularity.word, _engine.createIntlSegmenter({granularity: "word"})]);
    },
    /*_engine._kSoftLineBreak*/get _kSoftLineBreak() {
      return 0;
    },
    /*_engine._kHardLineBreak*/get _kHardLineBreak() {
      return 1;
    },
    /*_engine._v8LineBreaker*/get _v8LineBreaker() {
      return _engine.createV8BreakIterator();
    },
    /*_engine.ckShadowAmbientAlpha*/get ckShadowAmbientAlpha() {
      return 0.039;
    },
    /*_engine.ckShadowSpotAlpha*/get ckShadowSpotAlpha() {
      return 0.25;
    },
    /*_engine.ckShadowLightXOffset*/get ckShadowLightXOffset() {
      return 0;
    },
    /*_engine.ckShadowLightYOffset*/get ckShadowLightYOffset() {
      return -450;
    },
    /*_engine.ckShadowLightHeight*/get ckShadowLightHeight() {
      return 600;
    },
    /*_engine.ckShadowLightRadius*/get ckShadowLightRadius() {
      return 800;
    },
    /*_engine.ckShadowLightXTangent*/get ckShadowLightXTangent() {
      return 0;
    },
    /*_engine.ckShadowLightYTangent*/get ckShadowLightYTangent() {
      return -0.75;
    },
    /*_engine.kAmbientHeightFactor*/get kAmbientHeightFactor() {
      return 0.0078125;
    },
    /*_engine.kAmbientGeomFactor*/get kAmbientGeomFactor() {
      return 64;
    },
    /*_engine.kMaxAmbientRadius*/get kMaxAmbientRadius() {
      return 150;
    },
    /*_engine._configuration*/get _configuration() {
      return null;
    },
    set _configuration(value) {},
    /*_engine._debugConfiguration*/get _debugConfiguration() {
      return null;
    },
    set _debugConfiguration(value) {},
    /*_engine.debugCanvasCount*/get debugCanvasCount() {
      return 0;
    },
    set debugCanvasCount(value) {
      if (value == null) dart.nullFailed(I[270], 1108, 5, "debugCanvasCount");
    },
    /*_engine.mockHttpFetchResponseFactory*/get mockHttpFetchResponseFactory() {
      return null;
    },
    set mockHttpFetchResponseFactory(value) {},
    /*_engine._expectedFilesForTT*/get _expectedFilesForTT() {
      return C[1092] || CT.C1092;
    },
    /*_engine._ttPolicy*/get _ttPolicy() {
      return T$13.DomTrustedTypePolicy()[_as](dart.nullCheck(js_util.getProperty(T$13.DomTrustedTypePolicyFactoryN(), dart.jsInteropNullCheck(dart.global.window), "trustedTypes")).createPolicy(js_interop['StringToJSString|get#toJS']("flutter-engine"), {createScriptURL: js_util._functionToJS1(dart.fn(url => {
          if (url == null) dart.nullFailed(I[270], 3375, 34, "url");
          let uri = core.Uri.parse(js_interop['JSStringToString|get#toDart'](url));
          if (dart.test(_engine._expectedFilesForTT.contains(uri.pathSegments[$last]))) {
            return js_interop['StringToJSString|get#toJS'](dart.toString(uri));
          }
          _engine['DomConsoleExtension|error'](js_util.getProperty(T$9.DomConsole(), dart.jsInteropNullCheck(dart.global.window), "console"), "URL rejected by TrustedTypes policy flutter-engine: " + dart.str(url) + "(download prevented)");
          return null;
        }, T$.StringToStringN()))}));
    },
    /*_engine.browserSupportsFinalizationRegistry*/get browserSupportsFinalizationRegistry() {
      return dart.global.window.FinalizationRegistry != null;
    },
    set browserSupportsFinalizationRegistry(value) {
      if (value == null) dart.nullFailed(I[270], 3707, 6, "browserSupportsFinalizationRegistry");
    },
    /*_engine.browserSupportsOffscreenCanvas*/get browserSupportsOffscreenCanvas() {
      return dart.global.window.OffscreenCanvas != null;
    },
    set browserSupportsOffscreenCanvas(value) {
      if (value == null) dart.nullFailed(I[270], 3713, 6, "browserSupportsOffscreenCanvas");
    },
    /*_engine.debugDisableCreateImageBitmapSupport*/get debugDisableCreateImageBitmapSupport() {
      return false;
    },
    set debugDisableCreateImageBitmapSupport(value) {
      if (value == null) dart.nullFailed(I[270], 3719, 6, "debugDisableCreateImageBitmapSupport");
    },
    /*_engine._fontChangeMessage*/get _fontChangeMessage() {
      return (C[923] || CT.C923).encodeMessage(new (G.IdentityMapOfString$dynamic()).from(["type", "fontsChange"]));
    },
    /*_engine._fontChangeScheduled*/get _fontChangeScheduled() {
      return false;
    },
    set _fontChangeScheduled(value) {
      if (value == null) dart.nullFailed(I[394], 15, 6, "_fontChangeScheduled");
    },
    /*_engine.encodedFontSets*/get encodedFontSets() {
      return "1rhb2gl,1r2ql,1rh2il,4i,,1z2i,1r3c,1z,1rj2gl,1zb2g,2b2g,a,f,bac,2x,ba,1zb,2b,a1qhb2gl,e,1rhbv1kl,1j,acaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaabaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,f1lhb2gl,1rh2u,acaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaabbaaaaaaaaaaaabaaaaaabaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaabaaaaaaaaaabaaaaaaaaaaaaaaaaaaa,i,e1mhb2gl,a2w,bab,5b,p,1n,1q,acaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,bac1lhb2gl,1o,3x,2d,4n,5d,az,2j,ba1ohb2gl,1e,1k,1rhb2s,1u,bab1mhb2gl,1rhb2g,2f,2n,a1qhbv1kl,f1lhbv1kl,po,1l,1rj2s,2s,2w,e2s,1c,1n3n,1p,3e,5o,a1d,a1e,f2r,j,1f,2l,3g,4a,4y,acaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,a1g,a1k,d,i4v,q,y,1b,1e3f,1rhb,1rhb1cfxlr,2g,3h,3k,aaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaabaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaabaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaabaaaaaabbaaaaaaaaaaaabaaaaaabaaaaaaaabaaaaaaaaaaaaaabaaaabaaabaaaaaaaaaabaaaaaaaaaaaaaaaaaaa,af1khb2gl,a4s,g,i2z1kk,i4k,r,u,z,1a,1ei,1rhb1c1dl,1rhb1ixlr,1rhb2glr,1t,2a,2k,2m,2v,3a,3b,3c,3f,3p,4f,4t,4w,5g,aaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaabaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaabbaaaaaaaaaaaabaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaabaaaaaaaaaabaaaaaaaaaaaaaaaaaaa,acaaaabaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaabaaaaaaaabaaaaaaaaaaaaaabaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,af,afb,a1gjhbv1kl,a1j,a1qhb2glg,a5f,ea,e1mhbv1kl,i1n,k,l,m,n,o,poip,s,w,x,1c1ja,1g,1rhb1cfselco,1rhb1ixl,1rhb2belr,1v,1x,1y,1zb2gl,2c,2e,2h,2i,2o,2q,2t,2u,3d,3ey,3i,3j,3l,3m,3q,3t,3y,3z,4e,4g,4il,4j,4m,4p,4r,4v,4x,4z,5a,5c,5f,5h,5i,5k,5l,5m,aaa,aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,aaafbacabaadafbgaaabbfbaaaaaaaaafaaafcacabadgaccbacabadaabaaaaaabaaaadc,aaa1ohb1c1dl,aaa1ohb2gl,acaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaabaaaaaaaaaaaaaabaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaabaaaaaaaaaaaabaabaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaaaaaabaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,acaaaabaaaaaaaaaabaaaaaaaaaaaaaaaaaaaaabaaaaaabbaaaaaaaaaaaabaaaaaabaaaaaaaabaaaaaaaaaaaaaaaaaaaabaaabaaaaaaaaaabaaaaaaaaaaaaaaaaaaa,acaaababaaaaaaaaabaabdaaabbaaaaaaabeaaaaaaaaaaaaccaaaaaacbaacabagbcabcbaaaaabaabaaaaaaabaabaaaacca,acabacaaabababbbbaaaabbcababaaaaaabdacaaaaaacaababaabababaaaaaaaaaaaaaabaaaabaaabaaaaaaababaaaabadaaaaaaaa,ad,afadbbabadbbbiadbaaaabbcdcbacbbabaabcacdabaaaaacaaaababacbaaabbbaaiaaaaab,afy3n,agaccaaaaakjbbhbabacaaghgpfccddacaaaabbaai,ahafkdeadbacebaaaaahd1ekgbabgbbi,ahbacabaadafaagaaabaafbaaaaaaaaafaaafcacabalccbacabaacaabaaaaaabaaaadc,ah1ihb2gjb,ah1l,ah1l1nupk,ai,aj,aooiabmecfadjqpehabd,aooiabmo1rqbd,aoojbmohni1db,aoolx1i1h,ao1aahbbcl1ekeggb,at2j,av,avcfg3gla,avd,avdk,ayae1kb1olm,ayf3n,ay1x1v,azgda1k,a1di,a1dxo,a1d1y,a1elhb2gl,a1i,a1jghb2gl,a1k2g,a1qhb1c1dl,a1qhb2bel,a1t,a2d1c,a2i,a2n,a2tmv,a3an,a3h,a3k,a3o,a3og,a3r,a3w,a3x,a4r,a5a,a5e,baba,bab1a,bab1mhbv1kl,bab5j,bacz,bac2r,ba1ohbv1kl,ba2u,c,da1mhbv1kl,da1mhb2gl,e1alhb2gl,e1l,e4o,fu,f2r2a,f2s,gb2ka1kie,gb2z1kk,h,ir,i1n2wk,i2z1v,i4kk,j1a,ph3u,poip2zd,poy,p4r,s1h,t,ty3ca,v,x2j1p,1d,1eip,1ejbladaiak1wg,1ejbladail1wg,1ejbleail1wg,1eyo2ib,1e3w,1h,1i,1j1n,1m,1os,1q1p,1rhbmpfselco,1rhb1cfxl,1rhb1cyelr,1rhb2bel,1r2q,1s,1w,2p,2r,2xu,2z,3n,3o,3r,3s,3u,3v,3w,4b,4c,4d,4h,4k,4l,4o,4q,4s,5e,5j,5n";
    },
    /*_engine.encodedFontSetRanges*/get encodedFontSetRanges() {
      return " ";
    },
    /*_engine.debugFrameNumber*/get debugFrameNumber() {
      return 1;
    },
    set debugFrameNumber(value) {
      if (value == null) dart.nullFailed(I[274], 9, 5, "debugFrameNumber");
    },
    /*_engine.frameReferences*/get frameReferences() {
      return G$.JSArrayOfFrameReference().of([]);
    },
    set frameReferences(value) {
      if (value == null) dart.nullFailed(I[274], 11, 31, "frameReferences");
    },
    /*_engine.SVG_FEBLEND_MODE_UNKNOWN*/get SVG_FEBLEND_MODE_UNKNOWN() {
      return 0;
    },
    /*_engine.SVG_FEBLEND_MODE_NORMAL*/get SVG_FEBLEND_MODE_NORMAL() {
      return 1;
    },
    /*_engine.SVG_FEBLEND_MODE_MULTIPLY*/get SVG_FEBLEND_MODE_MULTIPLY() {
      return 2;
    },
    /*_engine.SVG_FEBLEND_MODE_SCREEN*/get SVG_FEBLEND_MODE_SCREEN() {
      return 3;
    },
    /*_engine.SVG_FEBLEND_MODE_DARKEN*/get SVG_FEBLEND_MODE_DARKEN() {
      return 4;
    },
    /*_engine.SVG_FEBLEND_MODE_LIGHTEN*/get SVG_FEBLEND_MODE_LIGHTEN() {
      return 5;
    },
    /*_engine.SVG_FEBLEND_MODE_OVERLAY*/get SVG_FEBLEND_MODE_OVERLAY() {
      return 6;
    },
    /*_engine.SVG_FEBLEND_MODE_COLOR_DODGE*/get SVG_FEBLEND_MODE_COLOR_DODGE() {
      return 7;
    },
    /*_engine.SVG_FEBLEND_MODE_COLOR_BURN*/get SVG_FEBLEND_MODE_COLOR_BURN() {
      return 8;
    },
    /*_engine.SVG_FEBLEND_MODE_HARD_LIGHT*/get SVG_FEBLEND_MODE_HARD_LIGHT() {
      return 9;
    },
    /*_engine.SVG_FEBLEND_MODE_SOFT_LIGHT*/get SVG_FEBLEND_MODE_SOFT_LIGHT() {
      return 10;
    },
    /*_engine.SVG_FEBLEND_MODE_DIFFERENCE*/get SVG_FEBLEND_MODE_DIFFERENCE() {
      return 11;
    },
    /*_engine.SVG_FEBLEND_MODE_EXCLUSION*/get SVG_FEBLEND_MODE_EXCLUSION() {
      return 12;
    },
    /*_engine.SVG_FEBLEND_MODE_HUE*/get SVG_FEBLEND_MODE_HUE() {
      return 13;
    },
    /*_engine.SVG_FEBLEND_MODE_SATURATION*/get SVG_FEBLEND_MODE_SATURATION() {
      return 14;
    },
    /*_engine.SVG_FEBLEND_MODE_COLOR*/get SVG_FEBLEND_MODE_COLOR() {
      return 15;
    },
    /*_engine.SVG_FEBLEND_MODE_LUMINOSITY*/get SVG_FEBLEND_MODE_LUMINOSITY() {
      return 16;
    },
    /*_engine.kCompositeClear*/get kCompositeClear() {
      return "clear";
    },
    /*_engine.kCompositeCopy*/get kCompositeCopy() {
      return "copy";
    },
    /*_engine.kCompositeSourceOver*/get kCompositeSourceOver() {
      return "source-over";
    },
    /*_engine.kCompositeSourceIn*/get kCompositeSourceIn() {
      return "source-in";
    },
    /*_engine.kCompositeSourceOut*/get kCompositeSourceOut() {
      return "source-out";
    },
    /*_engine.kCompositeSourceAtop*/get kCompositeSourceAtop() {
      return "source-atop";
    },
    /*_engine.kCompositeDestinationOver*/get kCompositeDestinationOver() {
      return "destination-over";
    },
    /*_engine.kCompositeDestinationIn*/get kCompositeDestinationIn() {
      return "destination-in";
    },
    /*_engine.kCompositeDestinationOut*/get kCompositeDestinationOut() {
      return "destination-out";
    },
    /*_engine.kCompositeDestinationAtop*/get kCompositeDestinationAtop() {
      return "destination-atop";
    },
    /*_engine.kCompositeXor*/get kCompositeXor() {
      return "xor";
    },
    /*_engine.kCompositeLighter*/get kCompositeLighter() {
      return "lighter";
    },
    /*_engine.kObjectBoundingBox*/get kObjectBoundingBox() {
      return 2;
    },
    /*_engine.kMatrixType*/get kMatrixType() {
      return 1;
    },
    /*_engine.kOperatorOut*/get kOperatorOut() {
      return 3;
    },
    /*_engine.kOperatorAtop*/get kOperatorAtop() {
      return 4;
    },
    /*_engine.kOperatorXor*/get kOperatorXor() {
      return 5;
    },
    /*_engine.kOperatorArithmetic*/get kOperatorArithmetic() {
      return 6;
    },
    /*_engine.kEpsilon*/get kEpsilon() {
      return 1e-9;
    },
    /*_engine._kMaxTValue*/get _kMaxTValue() {
      return 1073741823;
    },
    /*_engine._fTolerance*/get _fTolerance() {
      return 0.5;
    },
    /*_engine._clipIdCounter*/get _clipIdCounter() {
      return 0;
    },
    set _clipIdCounter(value) {
      if (value == null) dart.nullFailed(I[398], 9, 5, "_clipIdCounter");
    },
    /*_engine.kSvgResourceHeader*/get kSvgResourceHeader() {
      let t$361820;
      return t$361820 = _engine.createSVGSVGElement(), (() => {
        _engine['DomElementExtension|setAttribute'](t$361820, "width", 0);
        _engine['DomElementExtension|setAttribute'](t$361820, "height", 0);
        _engine['DomCSSStyleDeclarationExtension|set#position'](js_util.getProperty(T$9.DomCSSStyleDeclaration(), t$361820, "style"), "absolute");
        return t$361820;
      })();
    },
    /*_engine._kCanvasCacheSize*/get _kCanvasCacheSize() {
      return 30;
    },
    /*_engine._recycledCanvases*/get _recycledCanvases() {
      return G$.JSArrayOfBitmapCanvas().of([]);
    },
    /*_engine.paintQueue*/get paintQueue() {
      return G$.JSArrayOfPaintRequest().of([]);
    },
    set paintQueue(value) {
      if (value == null) dart.nullFailed(I[298], 168, 20, "paintQueue");
    },
    /*_engine._debugDumpPaintCommands*/get _debugDumpPaintCommands() {
      return false;
    },
    /*_engine.glRenderer*/get glRenderer() {
      return null;
    },
    set glRenderer(value) {},
    /*_engine.kFltEpsilon*/get kFltEpsilon() {
      return 1.1920929e-7;
    },
    /*_engine.kFltEpsilonSquared*/get kFltEpsilonSquared() {
      return 1.4210854822304103e-14;
    },
    /*_engine._sharedCanvas*/get _sharedCanvas() {
      return new _engine.SharedCanvas.new();
    },
    set _sharedCanvas(value) {
      if (value == null) dart.nullFailed(I[309], 31, 14, "_sharedCanvas");
    },
    /*_engine._kReservedWords*/get _kReservedWords() {
      return C[1093] || CT.C1093;
    },
    /*_engine.debugExplainSurfaceStats*/get debugExplainSurfaceStats() {
      return false;
    },
    /*_engine.debugShowCanvasReuseStats*/get debugShowCanvasReuseStats() {
      return false;
    },
    /*_engine.debugShowClipLayers*/get debugShowClipLayers() {
      return false;
    },
    set debugShowClipLayers(value) {
      if (value == null) dart.nullFailed(I[277], 24, 6, "debugShowClipLayers");
    },
    /*_engine.kScreenPixelRatioWarningThreshold*/get kScreenPixelRatioWarningThreshold() {
      return 6;
    },
    /*_engine.retainedSurfaces*/get retainedSurfaces() {
      return G$.JSArrayOfPersistedSurface().of([]);
    },
    set retainedSurfaces(value) {
      if (value == null) dart.nullFailed(I[312], 12, 24, "retainedSurfaces");
    },
    /*_engine.surfaceStats*/get surfaceStats() {
      return new (G$.LinkedMapOfPersistedSurface$DebugSurfaceStats()).new();
    },
    set surfaceStats(value) {
      if (value == null) dart.nullFailed(I[312], 15, 42, "surfaceStats");
    },
    /*_engine._surfaceStatsTimeline*/get _surfaceStatsTimeline() {
      return G$.JSArrayOfMapOfPersistedSurface$DebugSurfaceStats().of([]);
    },
    set _surfaceStatsTimeline(value) {
      if (value == null) dart.nullFailed(I[312], 18, 48, "_surfaceStatsTimeline");
    },
    /*_engine._debugSurfaceStatsOverlayCtx*/get _debugSurfaceStatsOverlayCtx() {
      return null;
    },
    set _debugSurfaceStatsOverlayCtx(value) {},
    /*_engine._supportsDecode*/get _supportsDecode() {
      return _engine._jsImageDecodeFunction != null;
    },
    /*_engine._kDefaultWebDecoderExpireDuration*/get _kDefaultWebDecoderExpireDuration() {
      return C[1094] || CT.C1094;
    },
    set _kDefaultWebDecoderExpireDuration(value) {
      if (value == null) dart.nullFailed(I[241], 9, 10, "_kDefaultWebDecoderExpireDuration");
    },
    /*_engine._kWebDecoderExpireDuration*/get _kWebDecoderExpireDuration() {
      return _engine._kDefaultWebDecoderExpireDuration;
    },
    set _kWebDecoderExpireDuration(value) {
      if (value == null) dart.nullFailed(I[241], 10, 10, "_kWebDecoderExpireDuration");
    },
    /*_engine.debugContentTypeDetector*/get debugContentTypeDetector() {
      return null;
    },
    set debugContentTypeDetector(value) {},
    /*_engine._avifSignature*/get _avifSignature() {
      return "ftyp"[$codeUnits];
    },
    /*_engine.kReleaseMode*/get kReleaseMode() {
      return false;
    },
    /*_engine.kProfileMode*/get kProfileMode() {
      return false;
    },
    /*_engine.kDebugMode*/get kDebugMode() {
      return true;
    },
    /*_engine.kProfilePrerollFrame*/get kProfilePrerollFrame() {
      return "preroll_frame";
    },
    /*_engine.kProfileApplyFrame*/get kProfileApplyFrame() {
      return "apply_frame";
    },
    /*_engine._hotRestartListeners*/get _hotRestartListeners() {
      return G$.JSArrayOfVoidTovoid().of([]);
    },
    /*_engine._initializationState*/get _initializationState() {
      return _engine.DebugEngineInitializationState.uninitialized;
    },
    set _initializationState(value) {
      if (value == null) dart.nullFailed(I[314], 90, 32, "_initializationState");
    },
    /*_engine._assetManager*/get _assetManager() {
      return null;
    },
    set _assetManager(value) {},
    /*_engine._debugAssetManager*/get _debugAssetManager() {
      return null;
    },
    set _debugAssetManager(value) {},
    /*_engine._debugDisableFontFallbacks*/get _debugDisableFontFallbacks() {
      return false;
    },
    set _debugDisableFontFallbacks(value) {
      if (value == null) dart.nullFailed(I[314], 278, 6, "_debugDisableFontFallbacks");
    },
    /*_engine.kWebToLogicalKey*/get kWebToLogicalKey() {
      return C[1095] || CT.C1095;
    },
    /*_engine.kWebToPhysicalKey*/get kWebToPhysicalKey() {
      return C[1096] || CT.C1096;
    },
    /*_engine.kWebLogicalLocationMap*/get kWebLogicalLocationMap() {
      return C[1097] || CT.C1097;
    },
    /*_engine._debugLogKeyEvents*/get _debugLogKeyEvents() {
      return false;
    },
    /*_engine._kLocationLeft*/get _kLocationLeft() {
      return 1;
    },
    /*_engine._kLocationRight*/get _kLocationRight() {
      return 2;
    },
    /*_engine._kLogicalAltLeft*/get _kLogicalAltLeft() {
      return dart.nullCheck(dart.nullCheck(_engine.kWebLogicalLocationMap[$_get]("Alt"))[$_get](1));
    },
    /*_engine._kLogicalAltRight*/get _kLogicalAltRight() {
      return dart.nullCheck(dart.nullCheck(_engine.kWebLogicalLocationMap[$_get]("Alt"))[$_get](2));
    },
    /*_engine._kLogicalControlLeft*/get _kLogicalControlLeft() {
      return dart.nullCheck(dart.nullCheck(_engine.kWebLogicalLocationMap[$_get]("Control"))[$_get](1));
    },
    /*_engine._kLogicalControlRight*/get _kLogicalControlRight() {
      return dart.nullCheck(dart.nullCheck(_engine.kWebLogicalLocationMap[$_get]("Control"))[$_get](2));
    },
    /*_engine._kLogicalShiftLeft*/get _kLogicalShiftLeft() {
      return dart.nullCheck(dart.nullCheck(_engine.kWebLogicalLocationMap[$_get]("Shift"))[$_get](1));
    },
    /*_engine._kLogicalShiftRight*/get _kLogicalShiftRight() {
      return dart.nullCheck(dart.nullCheck(_engine.kWebLogicalLocationMap[$_get]("Shift"))[$_get](2));
    },
    /*_engine._kLogicalMetaLeft*/get _kLogicalMetaLeft() {
      return dart.nullCheck(dart.nullCheck(_engine.kWebLogicalLocationMap[$_get]("Meta"))[$_get](1));
    },
    /*_engine._kLogicalMetaRight*/get _kLogicalMetaRight() {
      return dart.nullCheck(dart.nullCheck(_engine.kWebLogicalLocationMap[$_get]("Meta"))[$_get](2));
    },
    /*_engine._kPhysicalAltLeft*/get _kPhysicalAltLeft() {
      return dart.nullCheck(_engine.kWebToPhysicalKey[$_get]("AltLeft"));
    },
    /*_engine._kPhysicalAltRight*/get _kPhysicalAltRight() {
      return dart.nullCheck(_engine.kWebToPhysicalKey[$_get]("AltRight"));
    },
    /*_engine.kPhysicalControlLeft*/get kPhysicalControlLeft() {
      return dart.nullCheck(_engine.kWebToPhysicalKey[$_get]("ControlLeft"));
    },
    /*_engine.kPhysicalControlRight*/get kPhysicalControlRight() {
      return dart.nullCheck(_engine.kWebToPhysicalKey[$_get]("ControlRight"));
    },
    /*_engine._kPhysicalShiftLeft*/get _kPhysicalShiftLeft() {
      return dart.nullCheck(_engine.kWebToPhysicalKey[$_get]("ShiftLeft"));
    },
    /*_engine._kPhysicalShiftRight*/get _kPhysicalShiftRight() {
      return dart.nullCheck(_engine.kWebToPhysicalKey[$_get]("ShiftRight"));
    },
    /*_engine._kPhysicalMetaLeft*/get _kPhysicalMetaLeft() {
      return dart.nullCheck(_engine.kWebToPhysicalKey[$_get]("MetaLeft"));
    },
    /*_engine._kPhysicalMetaRight*/get _kPhysicalMetaRight() {
      return dart.nullCheck(_engine.kWebToPhysicalKey[$_get]("MetaRight"));
    },
    /*_engine._kLogicalKeyToModifierGetter*/get _kLogicalKeyToModifierGetter() {
      return new (G$.IdentityMapOfint$FlutterHtmlKeyboardEventTobool()).from([_engine._kLogicalAltLeft, dart.fn(event => {
          if (event == null) dart.nullFailed(I[317], 41, 47, "event");
          return event.altKey;
        }, T$11.FlutterHtmlKeyboardEventTobool()), _engine._kLogicalAltRight, dart.fn(event => {
          if (event == null) dart.nullFailed(I[317], 42, 48, "event");
          return event.altKey;
        }, T$11.FlutterHtmlKeyboardEventTobool()), _engine._kLogicalControlLeft, dart.fn(event => {
          if (event == null) dart.nullFailed(I[317], 43, 51, "event");
          return event.ctrlKey;
        }, T$11.FlutterHtmlKeyboardEventTobool()), _engine._kLogicalControlRight, dart.fn(event => {
          if (event == null) dart.nullFailed(I[317], 44, 52, "event");
          return event.ctrlKey;
        }, T$11.FlutterHtmlKeyboardEventTobool()), _engine._kLogicalShiftLeft, dart.fn(event => {
          if (event == null) dart.nullFailed(I[317], 45, 49, "event");
          return event.shiftKey;
        }, T$11.FlutterHtmlKeyboardEventTobool()), _engine._kLogicalShiftRight, dart.fn(event => {
          if (event == null) dart.nullFailed(I[317], 46, 50, "event");
          return event.shiftKey;
        }, T$11.FlutterHtmlKeyboardEventTobool()), _engine._kLogicalMetaLeft, dart.fn(event => {
          if (event == null) dart.nullFailed(I[317], 47, 48, "event");
          return event.metaKey;
        }, T$11.FlutterHtmlKeyboardEventTobool()), _engine._kLogicalMetaRight, dart.fn(event => {
          if (event == null) dart.nullFailed(I[317], 48, 49, "event");
          return event.metaKey;
        }, T$11.FlutterHtmlKeyboardEventTobool())]);
    },
    /*_engine._kPhysicalCapsLock*/get _kPhysicalCapsLock() {
      return "CapsLock";
    },
    /*_engine._kLogicalDead*/get _kLogicalDead() {
      return "Dead";
    },
    /*_engine._kWebKeyIdPlane*/get _kWebKeyIdPlane() {
      return 98784247808.0;
    },
    /*_engine._kDeadKeyCtrl*/get _kDeadKeyCtrl() {
      return 268435456;
    },
    /*_engine._kDeadKeyShift*/get _kDeadKeyShift() {
      return 536870912;
    },
    /*_engine._kDeadKeyAlt*/get _kDeadKeyAlt() {
      return 1073741824;
    },
    /*_engine._kDeadKeyMeta*/get _kDeadKeyMeta() {
      return 2147483648.0;
    },
    /*_engine._emptyKeyData*/get _emptyKeyData() {
      return C[1130] || CT.C1130;
    },
    /*_engine._kDefaultCursor*/get _kDefaultCursor() {
      return "default";
    },
    /*_engine.preventDefaultListener*/get preventDefaultListener() {
      return _engine.createDomEventListener(dart.fn(event => {
        if (event == null) dart.nullFailed(I[406], 8, 82, "event");
        event.preventDefault();
      }, T$10.DomEventTovoid()));
    },
    /*_engine.kMaxCodePoint*/get kMaxCodePoint() {
      return 1114111;
    },
    /*_engine.kPrefixDigit0*/get kPrefixDigit0() {
      return 48;
    },
    /*_engine.kPrefixRadix*/get kPrefixRadix() {
      return 10;
    },
    /*_engine.kFontIndexDigit0*/get kFontIndexDigit0() {
      return 97;
    },
    /*_engine.kFontIndexRadix*/get kFontIndexRadix() {
      return 26;
    },
    /*_engine.kRangeSizeDigit0*/get kRangeSizeDigit0() {
      return 97;
    },
    /*_engine.kRangeSizeRadix*/get kRangeSizeRadix() {
      return 26;
    },
    /*_engine.kRangeValueDigit0*/get kRangeValueDigit0() {
      return 65;
    },
    /*_engine.kRangeValueRadix*/get kRangeValueRadix() {
      return 26;
    },
    /*_engine._logElement*/get _logElement() {
      return null;
    },
    set _logElement(value) {},
    /*_engine['_#_logContainer']*/get ['_#_logContainer']() {
      return null;
    },
    set ['_#_logContainer'](value) {},
    /*_engine['_#_logContainer#isSet']*/get ['_#_logContainer#isSet']() {
      return false;
    },
    set ['_#_logContainer#isSet'](value) {
      if (value == null) dart.nullFailed(I[324], 8, 17, "_#_logContainer#isSet");
    },
    /*_engine._logBuffer*/get _logBuffer() {
      return G$.JSArrayOf_LogMessage().of([]);
    },
    set _logBuffer(value) {
      if (value == null) dart.nullFailed(I[324], 9, 19, "_logBuffer");
    },
    /*_engine.scheduleFrameCallback*/get scheduleFrameCallback() {
      return null;
    },
    set scheduleFrameCallback(value) {},
    /*_engine.standardCodec*/get standardCodec() {
      return C[918] || CT.C918;
    },
    /*_engine.jsonCodec*/get jsonCodec() {
      return C[847] || CT.C847;
    },
    /*_engine._defaultRootFontSize*/get _defaultRootFontSize() {
      return 16;
    },
    /*_engine.pluginMessageCallHandler*/get pluginMessageCallHandler() {
      return null;
    },
    set pluginMessageCallHandler(value) {},
    /*_engine._debugLogPointerEvents*/get _debugLogPointerEvents() {
      return false;
    },
    /*_engine._debugLogFlutterEvents*/get _debugLogFlutterEvents() {
      return false;
    },
    /*_engine._kButtonsMask*/get _kButtonsMask() {
      return 1073741823;
    },
    /*_engine._mouseDeviceId*/get _mouseDeviceId() {
      return -1;
    },
    /*_engine._trackpadDeviceId*/get _trackpadDeviceId() {
      return -2;
    },
    /*_engine._kPrimaryMouseButton*/get _kPrimaryMouseButton() {
      return 1;
    },
    /*_engine._kSecondaryMouseButton*/get _kSecondaryMouseButton() {
      return 2;
    },
    /*_engine._kMiddleMouseButton*/get _kMiddleMouseButton() {
      return 4;
    },
    /*_engine._debugLogPointerConverter*/get _debugLogPointerConverter() {
      return false;
    },
    /*_engine.engineBenchmarkValueCallback*/get engineBenchmarkValueCallback() {
      return null;
    },
    set engineBenchmarkValueCallback(value) {},
    /*_engine._modifierNone*/get _modifierNone() {
      return 0;
    },
    /*_engine._modifierShift*/get _modifierShift() {
      return 1;
    },
    /*_engine._modifierAlt*/get _modifierAlt() {
      return 2;
    },
    /*_engine._modifierControl*/get _modifierControl() {
      return 4;
    },
    /*_engine._modifierMeta*/get _modifierMeta() {
      return 8;
    },
    /*_engine.modifierNumLock*/get modifierNumLock() {
      return 16;
    },
    /*_engine.modifierCapsLock*/get modifierCapsLock() {
      return 32;
    },
    /*_engine.modifierScrollLock*/get modifierScrollLock() {
      return 64;
    },
    /*_engine._renderer*/get _renderer() {
      return _engine.Renderer._internal();
    },
    /*_engine._safeJsProperties*/get _safeJsProperties() {
      return C[1131] || CT.C1131;
    },
    /*_engine._browserImageDecodingEnabled*/get _browserImageDecodingEnabled() {
      return true;
    },
    /*_engine.browserSupportsImageDecoder*/get browserSupportsImageDecoder() {
      return _engine._defaultBrowserSupportsImageDecoder;
    },
    set browserSupportsImageDecoder(value) {
      if (value == null) dart.nullFailed(I[335], 164, 6, "browserSupportsImageDecoder");
    },
    /*_engine.kCanvasContainerTag*/get kCanvasContainerTag() {
      return "flt-canvas-container";
    },
    /*_engine.liveMessageDuration*/get liveMessageDuration() {
      return C[1132] || CT.C1132;
    },
    set liveMessageDuration(value) {
      if (value == null) dart.nullFailed(I[338], 22, 10, "liveMessageDuration");
    },
    /*_engine.kMaxSemanticsActivationAttempts*/get kMaxSemanticsActivationAttempts() {
      return 20;
    },
    /*_engine._periodToConsumeEvents*/get _periodToConsumeEvents() {
      return C[1132] || CT.C1132;
    },
    /*_engine.placeholderMessage*/get placeholderMessage() {
      return "Enable accessibility";
    },
    set placeholderMessage(value) {
      if (value == null) dart.nullFailed(I[351], 28, 8, "placeholderMessage");
    },
    /*_engine.kLightHeight*/get kLightHeight() {
      return 600;
    },
    /*_engine.kLightRadius*/get kLightRadius() {
      return 800;
    },
    /*_engine.kLightOffsetX*/get kLightOffsetX() {
      return -200;
    },
    /*_engine.kLightOffsetY*/get kLightOffsetY() {
      return -400;
    },
    /*_engine.svgLengthTypeNumber*/get svgLengthTypeNumber() {
      return 1;
    },
    /*_engine._debugLogHistoryActions*/get _debugLogHistoryActions() {
      return false;
    },
    /*_engine.placeholderChar*/get placeholderChar() {
      return core.String.fromCharCode(65532);
    },
    /*_engine.textContext*/get textContext() {
      return _engine['DomCanvasElementExtension|get#context2D'](_engine.createDomCanvasElement({width: 0, height: 0}));
    },
    /*_engine._lastContextFont*/get _lastContextFont() {
      return null;
    },
    set _lastContextFont(value) {},
    /*_engine._lineLookup*/get _lineLookup() {
      return null;
    },
    set _lineLookup(value) {},
    /*_engine._kNewlines*/get _kNewlines() {
      return C[1133] || CT.C1133;
    },
    /*_engine._kSpaces*/get _kSpaces() {
      return C[1134] || CT.C1134;
    },
    /*_engine.baselineRatioHack*/get baselineRatioHack() {
      return 1.1662499904632568;
    },
    /*_engine._lastStart*/get _lastStart() {
      return -1;
    },
    set _lastStart(value) {
      if (value == null) dart.nullFailed(I[370], 59, 5, "_lastStart");
    },
    /*_engine._lastEnd*/get _lastEnd() {
      return -1;
    },
    set _lastEnd(value) {
      if (value == null) dart.nullFailed(I[370], 60, 5, "_lastEnd");
    },
    /*_engine._lastText*/get _lastText() {
      return "";
    },
    set _lastText(value) {
      if (value == null) dart.nullFailed(I[370], 61, 8, "_lastText");
    },
    /*_engine._lastCssFont*/get _lastCssFont() {
      return "";
    },
    set _lastCssFont(value) {
      if (value == null) dart.nullFailed(I[370], 62, 8, "_lastCssFont");
    },
    /*_engine._lastWidth*/get _lastWidth() {
      return -1.0;
    },
    set _lastWidth(value) {
      if (value == null) dart.nullFailed(I[370], 63, 8, "_lastWidth");
    },
    /*_engine._textDirectionLookup*/get _textDirectionLookup() {
      return new (G$.UnicodePropertyLookupOfTextDirectionN()).new(G$.JSArrayOfUnicodeRangeOfTextDirection().of([C[1135] || CT.C1135, C[1136] || CT.C1136, C[1137] || CT.C1137, C[1138] || CT.C1138, C[1139] || CT.C1139, C[1140] || CT.C1140, C[1141] || CT.C1141, C[1142] || CT.C1142, C[1143] || CT.C1143, C[1144] || CT.C1144, C[1145] || CT.C1145, C[1146] || CT.C1146, C[1147] || CT.C1147, C[1148] || CT.C1148, C[1149] || CT.C1149, C[1150] || CT.C1150, C[1151] || CT.C1151, C[1152] || CT.C1152, C[1153] || CT.C1153, C[1154] || CT.C1154, C[1155] || CT.C1155]), null);
    },
    /*_engine.kChar_0*/get kChar_0() {
      return 48;
    },
    /*_engine.kChar_9*/get kChar_9() {
      return 57;
    },
    /*_engine.kChar_A*/get kChar_A() {
      return 65;
    },
    /*_engine.kChar_Z*/get kChar_Z() {
      return 90;
    },
    /*_engine.kChar_a*/get kChar_a() {
      return 97;
    },
    /*_engine.kChar_z*/get kChar_z() {
      return 122;
    },
    /*_engine.kCharBang*/get kCharBang() {
      return 33;
    },
    /*_engine.kMashriqi_0*/get kMashriqi_0() {
      return 1632;
    },
    /*_engine.kMashriqi_9*/get kMashriqi_9() {
      return 1641;
    },
    /*_engine.wordLookup*/get wordLookup() {
      return G$.UnicodePropertyLookupOfWordCharProperty().fromPackedData(_web_unicode.packedWordBreakProperties, 231, _web_unicode.WordCharProperty.values, _web_unicode.defaultWordCharProperty);
    },
    set wordLookup(value) {
      if (value == null) dart.nullFailed(I[407], 10, 41, "wordLookup");
    },
    /*_engine._debugVisibleTextEditing*/get _debugVisibleTextEditing() {
      return false;
    },
    set _debugVisibleTextEditing(value) {
      if (value == null) dart.nullFailed(I[354], 11, 6, "_debugVisibleTextEditing");
    },
    /*_engine._debugPrintTextInputCommands*/get _debugPrintTextInputCommands() {
      return false;
    },
    set _debugPrintTextInputCommands(value) {
      if (value == null) dart.nullFailed(I[354], 14, 6, "_debugPrintTextInputCommands");
    },
    /*_engine._kReturnKeyCode*/get _kReturnKeyCode() {
      return 13;
    },
    /*_engine.offScreenOffset*/get offScreenOffset() {
      return -9999;
    },
    /*_engine.transparentTextEditingClass*/get transparentTextEditingClass() {
      return "transparentTextEditing";
    },
    /*_engine.textEditing*/get textEditing() {
      return new _engine.HybridTextEditing.new();
    },
    /*_engine.formsOnTheDom*/get formsOnTheDom() {
      return new (G$.IdentityMapOfString$DomHTMLFormElement()).new();
    },
    /*_engine._tempRectData*/get _tempRectData() {
      return _native_typed_data.NativeFloat32List.new(4);
    },
    /*_engine._tempPointData*/get _tempPointData() {
      return _native_typed_data.NativeFloat32List.new(16);
    },
    /*_engine._tempPointMatrix*/get _tempPointMatrix() {
      return new _engine.Matrix4.fromFloat32List(_engine._tempPointData);
    },
    /*_engine._genericFontFamilies*/get _genericFontFamilies() {
      return C[1156] || CT.C1156;
    },
    /*_engine.printWarning*/get printWarning() {
      return _engine['DomConsoleExtension|get#warn'](js_util.getProperty(T$9.DomConsole(), dart.jsInteropNullCheck(dart.global.window), "console"));
    },
    set printWarning(value) {
      if (value == null) dart.nullFailed(I[380], 518, 23, "printWarning");
    },
    /*_engine._ellipseFeatureDetected*/get _ellipseFeatureDetected() {
      return null;
    },
    set _ellipseFeatureDetected(value) {},
    /*_engine.kUnitX*/get kUnitX() {
      return C[1157] || CT.C1157;
    },
    /*_engine.kUnitY*/get kUnitY() {
      return C[1158] || CT.C1158;
    },
    /*_engine.kUnitZ*/get kUnitZ() {
      return C[1159] || CT.C1159;
    },
    /*_engine._hotRestartCache*/get _hotRestartCache() {
      return dart.fn(() => {
        let cache = null;
        if (!dart.test(dart.fn(() => {
          cache = new _engine.HotRestartCacheHandler.new();
          return true;
        }, T$.VoidTobool())())) dart.assertFailed(null, I[391], 61, 10, "() {\n    cache = HotRestartCacheHandler();\n    return true;\n  }()");
        return cache;
      }, T$13.VoidToHotRestartCacheHandlerN())();
    },
    /*_engine.debugPrintPlatformMessages*/get debugPrintPlatformMessages() {
      return false;
    },
    /*_engine.kImplicitViewId*/get kImplicitViewId() {
      return 0;
    },
    /*_engine._nextViewId*/get _nextViewId() {
      return 0 + 1;
    },
    set _nextViewId(value) {
      if (value == null) dart.nullFailed(I[393], 18, 5, "_nextViewId");
    },
    /*_engine._window*/get _window() {
      return null;
    },
    set _window(value) {}
  }, false);
  _skwasm_stub.SkwasmRenderer = class SkwasmRenderer extends core.Object {
    combinePaths(op, path1, path2) {
      if (op == null) dart.nullFailed(I[408], 10, 41, "op");
      if (path1 == null) dart.nullFailed(I[408], 10, 53, "path1");
      if (path2 == null) dart.nullFailed(I[408], 10, 68, "path2");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    composeImageFilters(opts) {
      let outer = opts && 'outer' in opts ? opts.outer : null;
      if (outer == null) dart.nullFailed(I[408], 15, 63, "outer");
      let inner = opts && 'inner' in opts ? opts.inner : null;
      if (inner == null) dart.nullFailed(I[408], 15, 94, "inner");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    copyPath(src) {
      if (src == null) dart.nullFailed(I[408], 20, 28, "src");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createBlurImageFilter(opts) {
      let sigmaX = opts && 'sigmaX' in opts ? opts.sigmaX : 0;
      if (sigmaX == null) dart.nullFailed(I[408], 25, 48, "sigmaX");
      let sigmaY = opts && 'sigmaY' in opts ? opts.sigmaY : 0;
      if (sigmaY == null) dart.nullFailed(I[408], 25, 69, "sigmaY");
      let tileMode = opts && 'tileMode' in opts ? opts.tileMode : C[586] || CT.C586;
      if (tileMode == null) dart.nullFailed(I[408], 25, 95, "tileMode");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createCanvas(recorder, cullRect = null) {
      if (recorder == null) dart.nullFailed(I[408], 30, 45, "recorder");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createConicalGradient(focal, focalRadius, center, radius, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix = null) {
      if (focal == null) dart.nullFailed(I[408], 35, 47, "focal");
      if (focalRadius == null) dart.nullFailed(I[408], 35, 61, "focalRadius");
      if (center == null) dart.nullFailed(I[408], 35, 84, "center");
      if (radius == null) dart.nullFailed(I[408], 35, 99, "radius");
      if (colors == null) dart.nullFailed(I[408], 35, 122, "colors");
      if (tileMode == null) dart.nullFailed(I[408], 35, 169, "tileMode");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createDilateImageFilter(opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[408], 40, 50, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[408], 40, 72, "radiusY");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createErodeImageFilter(opts) {
      let radiusX = opts && 'radiusX' in opts ? opts.radiusX : 0;
      if (radiusX == null) dart.nullFailed(I[408], 45, 49, "radiusX");
      let radiusY = opts && 'radiusY' in opts ? opts.radiusY : 0;
      if (radiusY == null) dart.nullFailed(I[408], 45, 71, "radiusY");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createImageShader(image, tmx, tmy, matrix4, filterQuality) {
      if (image == null) dart.nullFailed(I[408], 50, 45, "image");
      if (tmx == null) dart.nullFailed(I[408], 50, 64, "tmx");
      if (tmy == null) dart.nullFailed(I[408], 50, 81, "tmy");
      if (matrix4 == null) dart.nullFailed(I[408], 50, 98, "matrix4");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createLinearGradient(from, to, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null) {
      if (from == null) dart.nullFailed(I[408], 55, 46, "from");
      if (to == null) dart.nullFailed(I[408], 55, 62, "to");
      if (colors == null) dart.nullFailed(I[408], 55, 81, "colors");
      if (tileMode == null) dart.nullFailed(I[408], 55, 128, "tileMode");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createMatrixImageFilter(matrix4, opts) {
      if (matrix4 == null) dart.nullFailed(I[408], 60, 54, "matrix4");
      let filterQuality = opts && 'filterQuality' in opts ? opts.filterQuality : C[594] || CT.C594;
      if (filterQuality == null) dart.nullFailed(I[408], 60, 81, "filterQuality");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createPaint() {
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createParagraphBuilder(style) {
      if (style == null) dart.nullFailed(I[408], 70, 64, "style");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createParagraphStyle(opts) {
      let textAlign = opts && 'textAlign' in opts ? opts.textAlign : null;
      let textDirection = opts && 'textDirection' in opts ? opts.textDirection : null;
      let maxLines = opts && 'maxLines' in opts ? opts.maxLines : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let textHeightBehavior = opts && 'textHeightBehavior' in opts ? opts.textHeightBehavior : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let strutStyle = opts && 'strutStyle' in opts ? opts.strutStyle : null;
      let ellipsis = opts && 'ellipsis' in opts ? opts.ellipsis : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createPath() {
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createPictureRecorder() {
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createRadialGradient(center, radius, colors, colorStops = null, tileMode = C[586] || CT.C586, matrix4 = null) {
      if (center == null) dart.nullFailed(I[408], 90, 46, "center");
      if (radius == null) dart.nullFailed(I[408], 90, 61, "radius");
      if (colors == null) dart.nullFailed(I[408], 90, 84, "colors");
      if (tileMode == null) dart.nullFailed(I[408], 90, 131, "tileMode");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createSceneBuilder() {
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createStrutStyle(opts) {
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let leading = opts && 'leading' in opts ? opts.leading : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let forceStrutHeight = opts && 'forceStrutHeight' in opts ? opts.forceStrutHeight : null;
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createSweepGradient(center, colors, colorStops = null, tileMode = C[586] || CT.C586, startAngle = 0, endAngle = 6.283185307179586, matrix4 = null) {
      if (center == null) dart.nullFailed(I[408], 105, 45, "center");
      if (colors == null) dart.nullFailed(I[408], 105, 68, "colors");
      if (tileMode == null) dart.nullFailed(I[408], 105, 115, "tileMode");
      if (startAngle == null) dart.nullFailed(I[408], 105, 152, "startAngle");
      if (endAngle == null) dart.nullFailed(I[408], 105, 177, "endAngle");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createTextStyle(opts) {
      let color = opts && 'color' in opts ? opts.color : null;
      let decoration = opts && 'decoration' in opts ? opts.decoration : null;
      let decorationColor = opts && 'decorationColor' in opts ? opts.decorationColor : null;
      let decorationStyle = opts && 'decorationStyle' in opts ? opts.decorationStyle : null;
      let decorationThickness = opts && 'decorationThickness' in opts ? opts.decorationThickness : null;
      let fontWeight = opts && 'fontWeight' in opts ? opts.fontWeight : null;
      let fontStyle = opts && 'fontStyle' in opts ? opts.fontStyle : null;
      let textBaseline = opts && 'textBaseline' in opts ? opts.textBaseline : null;
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      let fontFamilyFallback = opts && 'fontFamilyFallback' in opts ? opts.fontFamilyFallback : null;
      let fontSize = opts && 'fontSize' in opts ? opts.fontSize : null;
      let letterSpacing = opts && 'letterSpacing' in opts ? opts.letterSpacing : null;
      let wordSpacing = opts && 'wordSpacing' in opts ? opts.wordSpacing : null;
      let height = opts && 'height' in opts ? opts.height : null;
      let leadingDistribution = opts && 'leadingDistribution' in opts ? opts.leadingDistribution : null;
      let locale = opts && 'locale' in opts ? opts.locale : null;
      let background = opts && 'background' in opts ? opts.background : null;
      let foreground = opts && 'foreground' in opts ? opts.foreground : null;
      let shadows = opts && 'shadows' in opts ? opts.shadows : null;
      let fontFeatures = opts && 'fontFeatures' in opts ? opts.fontFeatures : null;
      let fontVariations = opts && 'fontVariations' in opts ? opts.fontVariations : null;
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createVertices(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[408], 115, 44, "mode");
      if (positions == null) dart.nullFailed(I[408], 115, 66, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createVerticesRaw(mode, positions, opts) {
      if (mode == null) dart.nullFailed(I[408], 120, 47, "mode");
      if (positions == null) dart.nullFailed(I[408], 120, 65, "positions");
      let textureCoordinates = opts && 'textureCoordinates' in opts ? opts.textureCoordinates : null;
      let colors = opts && 'colors' in opts ? opts.colors : null;
      let indices = opts && 'indices' in opts ? opts.indices : null;
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    decodeImageFromPixels(pixels, width, height, format, callback, opts) {
      if (pixels == null) dart.nullFailed(I[408], 125, 40, "pixels");
      if (width == null) dart.nullFailed(I[408], 125, 52, "width");
      if (height == null) dart.nullFailed(I[408], 125, 63, "height");
      if (format == null) dart.nullFailed(I[408], 125, 86, "format");
      if (callback == null) dart.nullFailed(I[408], 125, 118, "callback");
      let rowBytes = opts && 'rowBytes' in opts ? opts.rowBytes : null;
      let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
      let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
      let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
      if (allowUpscaling == null) dart.nullFailed(I[408], 125, 186, "allowUpscaling");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    get fontCollection() {
      return dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    initialize() {
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    instantiateImageCodec(list, opts) {
      if (list == null) dart.nullFailed(I[408], 138, 52, "list");
      let targetWidth = opts && 'targetWidth' in opts ? opts.targetWidth : null;
      let targetHeight = opts && 'targetHeight' in opts ? opts.targetHeight : null;
      let allowUpscaling = opts && 'allowUpscaling' in opts ? opts.allowUpscaling : true;
      if (allowUpscaling == null) dart.nullFailed(I[408], 138, 101, "allowUpscaling");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    instantiateImageCodecFromUrl(uri, opts) {
      if (uri == null) dart.nullFailed(I[408], 143, 53, "uri");
      let chunkCallback = opts && 'chunkCallback' in opts ? opts.chunkCallback : null;
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    renderScene(scene, view) {
      if (scene == null) dart.nullFailed(I[408], 148, 37, "scene");
      if (view == null) dart.nullFailed(I[408], 148, 59, "view");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    get rendererTag() {
      return dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    clearFragmentProgramCache() {
      return _skwasm_stub.SkwasmRenderer._programs[$clear]();
    }
    createFragmentProgram(assetKey) {
      let t$361822, t$361821, t$361820;
      if (assetKey == null) dart.nullFailed(I[408], 161, 59, "assetKey");
      if (dart.test(_skwasm_stub.SkwasmRenderer._programs[$containsKey](assetKey))) {
        return dart.nullCheck(_skwasm_stub.SkwasmRenderer._programs[$_get](assetKey));
      }
      t$361820 = _skwasm_stub.SkwasmRenderer._programs;
      t$361821 = assetKey;
      t$361822 = ui_web.assetManager.load(assetKey).then(T$10.FragmentProgram(), dart.fn(data => {
        if (data == null) dart.nullFailed(I[408], 165, 84, "data");
        return _engine.CkFragmentProgram.fromBytes(assetKey, data[$buffer][$asUint8List]());
      }, T$10.ByteDataToCkFragmentProgram()));
      t$361820[$_set](t$361821, t$361822);
      return t$361822;
    }
    createLineMetrics(opts) {
      let hardBreak = opts && 'hardBreak' in opts ? opts.hardBreak : null;
      if (hardBreak == null) dart.nullFailed(I[408], 172, 19, "hardBreak");
      let ascent = opts && 'ascent' in opts ? opts.ascent : null;
      if (ascent == null) dart.nullFailed(I[408], 173, 21, "ascent");
      let descent = opts && 'descent' in opts ? opts.descent : null;
      if (descent == null) dart.nullFailed(I[408], 174, 21, "descent");
      let unscaledAscent = opts && 'unscaledAscent' in opts ? opts.unscaledAscent : null;
      if (unscaledAscent == null) dart.nullFailed(I[408], 175, 21, "unscaledAscent");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[408], 176, 21, "height");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[408], 177, 21, "width");
      let left = opts && 'left' in opts ? opts.left : null;
      if (left == null) dart.nullFailed(I[408], 178, 21, "left");
      let baseline = opts && 'baseline' in opts ? opts.baseline : null;
      if (baseline == null) dart.nullFailed(I[408], 179, 21, "baseline");
      let lineNumber = opts && 'lineNumber' in opts ? opts.lineNumber : null;
      if (lineNumber == null) dart.nullFailed(I[408], 180, 18, "lineNumber");
      return dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createImageFromImageBitmap(imageSource) {
      if (imageSource == null) dart.nullFailed(I[408], 184, 54, "imageSource");
      dart.throw(new core.UnimplementedError.new("Skwasm not implemented on this platform."));
    }
    createImageFromTextureSource(object, opts) {
      if (object == null) dart.nullFailed(I[408], 189, 47, "object");
      let width = opts && 'width' in opts ? opts.width : null;
      if (width == null) dart.nullFailed(I[408], 189, 71, "width");
      let height = opts && 'height' in opts ? opts.height : null;
      if (height == null) dart.nullFailed(I[408], 189, 91, "height");
      let transferOwnership = opts && 'transferOwnership' in opts ? opts.transferOwnership : null;
      if (transferOwnership == null) dart.nullFailed(I[408], 189, 113, "transferOwnership");
      dart.throw(core.Exception.new("Skwasm not implemented on this platform."));
    }
    static ['_#new#tearOff']() {
      return new _skwasm_stub.SkwasmRenderer.new();
    }
  };
  (_skwasm_stub.SkwasmRenderer.new = function() {
    ;
  }).prototype = _skwasm_stub.SkwasmRenderer.prototype;
  dart.addRtiResources(_skwasm_stub.SkwasmRenderer, ["_skwasm_stub|SkwasmRenderer", "_engine|Renderer"]);
  dart.setMethodSignature(_skwasm_stub.SkwasmRenderer, () => dart.global.Object.setPrototypeOf({
    combinePaths: T$9.PathOperationAndPathAndPathToPath(),
    composeImageFilters: T$9.__ToImageFilter$2(),
    copyPath: T$9.PathToPath(),
    createBlurImageFilter: T$9.__ToImageFilter(),
    createCanvas: T$8.PictureRecorderAndRectNToCanvas(),
    createConicalGradient: T$10.OffsetAnddoubleAndOffset__ToGradient(),
    createDilateImageFilter: T$9.__ToImageFilter$1(),
    createErodeImageFilter: T$9.__ToImageFilter$1(),
    createImageShader: T$10.ImageAndTileModeAndTileMode__ToImageShader$1(),
    createLinearGradient: T$10.OffsetAndOffsetAndListOfColor__ToGradient$1(),
    createMatrixImageFilter: T$9.Float64List__ToImageFilter(),
    createPaint: T$8.VoidToPaint(),
    createParagraphBuilder: T$9.ParagraphStyleToParagraphBuilder(),
    createParagraphStyle: T$9.__ToParagraphStyle(),
    createPath: T$9.VoidToPath(),
    createPictureRecorder: T$8.VoidToPictureRecorder(),
    createRadialGradient: T$10.OffsetAnddoubleAndListOfColor__ToGradient$1(),
    createSceneBuilder: T$8.VoidToSceneBuilder(),
    createStrutStyle: T$9.__ToStrutStyle(),
    createSweepGradient: T$10.OffsetAndListOfColorAndListNOfdouble__ToGradient$1(),
    createTextStyle: T$9.__ToTextStyle(),
    createVertices: T$8.VertexModeAndListOfOffset__ToVertices(),
    createVerticesRaw: T$8.VertexModeAndFloat32List__ToVertices(),
    decodeImageFromPixels: T$10.Uint8ListAndintAndint__Tovoid(),
    initialize: T$.VoidTovoid(),
    instantiateImageCodec: T$10.Uint8List__ToFutureOfCodec(),
    instantiateImageCodecFromUrl: T$10.Uri__ToFutureOfCodec(),
    renderScene: T$10.SceneAndFlutterViewToFutureOfvoid(),
    clearFragmentProgramCache: T$.VoidTovoid(),
    createFragmentProgram: T$9.StringToFutureOfFragmentProgram(),
    createLineMetrics: T$9.__ToLineMetrics(),
    createImageFromImageBitmap: T$10.DomImageBitmapToImage(),
    createImageFromTextureSource: T$13.Object__ToImage()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_skwasm_stub.SkwasmRenderer))));
  dart.setGetterSignature(_skwasm_stub.SkwasmRenderer, () => dart.global.Object.setPrototypeOf({
    fontCollection: T$13.FlutterFontCollection(),
    rendererTag: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_skwasm_stub.SkwasmRenderer))));
  dart.setLibraryUri(_skwasm_stub.SkwasmRenderer, I[409]);
  dart.setStaticFieldSignature(_skwasm_stub.SkwasmRenderer, () => ['_programs']);
  dart.defineLazy(_skwasm_stub.SkwasmRenderer, {
    /*_skwasm_stub.SkwasmRenderer._programs*/get _programs() {
      return new (G$.IdentityMapOfString$FutureOfFragmentProgram()).new();
    }
  }, false);
  _web_unicode.LineCharProperty = class LineCharProperty extends core._Enum {
    [_enumToString]() {
      return "LineCharProperty." + dart.str(this[_name$]);
    }
  };
  (_web_unicode.LineCharProperty.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[410], 14, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[410], 14, 6, "#name");
    dart.global.Object.getPrototypeOf(_web_unicode.LineCharProperty).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _web_unicode.LineCharProperty.prototype;
  dart.addRtiResources(_web_unicode.LineCharProperty, ["_web_unicode|LineCharProperty"]);
  dart.setMethodSignature(_web_unicode.LineCharProperty, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_web_unicode.LineCharProperty))));
  dart.setLibraryUri(_web_unicode.LineCharProperty, I[411]);
  dart.setStaticFieldSignature(_web_unicode.LineCharProperty, () => ['values', 'CM', 'BA', 'LF', 'BK', 'CR', 'SP', 'EX', 'QU', 'AL', 'PR', 'PO', 'OP', 'CP', 'IS', 'HY', 'SY', 'NU', 'CL', 'GL', 'BB', 'HL', 'JL', 'JV', 'JT', 'NS', 'ZW', 'ZWJ', 'B2', 'IN', 'WJ', 'ID', 'EB', 'H2', 'H3', 'CB', 'RI', 'EM']);
  dart.defineLazy(_web_unicode.LineCharProperty, {
    /*_web_unicode.LineCharProperty.values*/get values() {
      return C[1160] || CT.C1160;
    },
    /*_web_unicode.LineCharProperty.CM*/get CM() {
      return C[1161] || CT.C1161;
    },
    /*_web_unicode.LineCharProperty.BA*/get BA() {
      return C[1162] || CT.C1162;
    },
    /*_web_unicode.LineCharProperty.LF*/get LF() {
      return C[1163] || CT.C1163;
    },
    /*_web_unicode.LineCharProperty.BK*/get BK() {
      return C[1164] || CT.C1164;
    },
    /*_web_unicode.LineCharProperty.CR*/get CR() {
      return C[1165] || CT.C1165;
    },
    /*_web_unicode.LineCharProperty.SP*/get SP() {
      return C[1166] || CT.C1166;
    },
    /*_web_unicode.LineCharProperty.EX*/get EX() {
      return C[1167] || CT.C1167;
    },
    /*_web_unicode.LineCharProperty.QU*/get QU() {
      return C[1168] || CT.C1168;
    },
    /*_web_unicode.LineCharProperty.AL*/get AL() {
      return C[1169] || CT.C1169;
    },
    /*_web_unicode.LineCharProperty.PR*/get PR() {
      return C[1170] || CT.C1170;
    },
    /*_web_unicode.LineCharProperty.PO*/get PO() {
      return C[1171] || CT.C1171;
    },
    /*_web_unicode.LineCharProperty.OP*/get OP() {
      return C[1172] || CT.C1172;
    },
    /*_web_unicode.LineCharProperty.CP*/get CP() {
      return C[1173] || CT.C1173;
    },
    /*_web_unicode.LineCharProperty.IS*/get IS() {
      return C[1174] || CT.C1174;
    },
    /*_web_unicode.LineCharProperty.HY*/get HY() {
      return C[1175] || CT.C1175;
    },
    /*_web_unicode.LineCharProperty.SY*/get SY() {
      return C[1176] || CT.C1176;
    },
    /*_web_unicode.LineCharProperty.NU*/get NU() {
      return C[1177] || CT.C1177;
    },
    /*_web_unicode.LineCharProperty.CL*/get CL() {
      return C[1178] || CT.C1178;
    },
    /*_web_unicode.LineCharProperty.GL*/get GL() {
      return C[1179] || CT.C1179;
    },
    /*_web_unicode.LineCharProperty.BB*/get BB() {
      return C[1180] || CT.C1180;
    },
    /*_web_unicode.LineCharProperty.HL*/get HL() {
      return C[1181] || CT.C1181;
    },
    /*_web_unicode.LineCharProperty.JL*/get JL() {
      return C[1182] || CT.C1182;
    },
    /*_web_unicode.LineCharProperty.JV*/get JV() {
      return C[1183] || CT.C1183;
    },
    /*_web_unicode.LineCharProperty.JT*/get JT() {
      return C[1184] || CT.C1184;
    },
    /*_web_unicode.LineCharProperty.NS*/get NS() {
      return C[1185] || CT.C1185;
    },
    /*_web_unicode.LineCharProperty.ZW*/get ZW() {
      return C[1186] || CT.C1186;
    },
    /*_web_unicode.LineCharProperty.ZWJ*/get ZWJ() {
      return C[1187] || CT.C1187;
    },
    /*_web_unicode.LineCharProperty.B2*/get B2() {
      return C[1188] || CT.C1188;
    },
    /*_web_unicode.LineCharProperty.IN*/get IN() {
      return C[1189] || CT.C1189;
    },
    /*_web_unicode.LineCharProperty.WJ*/get WJ() {
      return C[1190] || CT.C1190;
    },
    /*_web_unicode.LineCharProperty.ID*/get ID() {
      return C[1191] || CT.C1191;
    },
    /*_web_unicode.LineCharProperty.EB*/get EB() {
      return C[1192] || CT.C1192;
    },
    /*_web_unicode.LineCharProperty.H2*/get H2() {
      return C[1193] || CT.C1193;
    },
    /*_web_unicode.LineCharProperty.H3*/get H3() {
      return C[1194] || CT.C1194;
    },
    /*_web_unicode.LineCharProperty.CB*/get CB() {
      return C[1195] || CT.C1195;
    },
    /*_web_unicode.LineCharProperty.RI*/get RI() {
      return C[1196] || CT.C1196;
    },
    /*_web_unicode.LineCharProperty.EM*/get EM() {
      return C[1197] || CT.C1197;
    }
  }, false);
  _web_unicode.WordCharProperty = class WordCharProperty extends core._Enum {
    [_enumToString]() {
      return "WordCharProperty." + dart.str(this[_name$]);
    }
  };
  (_web_unicode.WordCharProperty.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[412], 14, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[412], 14, 6, "#name");
    dart.global.Object.getPrototypeOf(_web_unicode.WordCharProperty).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _web_unicode.WordCharProperty.prototype;
  dart.addRtiResources(_web_unicode.WordCharProperty, ["_web_unicode|WordCharProperty"]);
  dart.setMethodSignature(_web_unicode.WordCharProperty, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_web_unicode.WordCharProperty))));
  dart.setLibraryUri(_web_unicode.WordCharProperty, I[411]);
  dart.setStaticFieldSignature(_web_unicode.WordCharProperty, () => ['values', 'DoubleQuote', 'SingleQuote', 'HebrewLetter', 'CR', 'LF', 'Newline', 'Extend', 'RegionalIndicator', 'Format', 'Katakana', 'ALetter', 'MidLetter', 'MidNum', 'MidNumLet', 'Numeric', 'ExtendNumLet', 'ZWJ', 'WSegSpace', 'Unknown']);
  dart.defineLazy(_web_unicode.WordCharProperty, {
    /*_web_unicode.WordCharProperty.values*/get values() {
      return C[1198] || CT.C1198;
    },
    /*_web_unicode.WordCharProperty.DoubleQuote*/get DoubleQuote() {
      return C[1199] || CT.C1199;
    },
    /*_web_unicode.WordCharProperty.SingleQuote*/get SingleQuote() {
      return C[1200] || CT.C1200;
    },
    /*_web_unicode.WordCharProperty.HebrewLetter*/get HebrewLetter() {
      return C[1201] || CT.C1201;
    },
    /*_web_unicode.WordCharProperty.CR*/get CR() {
      return C[1202] || CT.C1202;
    },
    /*_web_unicode.WordCharProperty.LF*/get LF() {
      return C[1203] || CT.C1203;
    },
    /*_web_unicode.WordCharProperty.Newline*/get Newline() {
      return C[1204] || CT.C1204;
    },
    /*_web_unicode.WordCharProperty.Extend*/get Extend() {
      return C[1205] || CT.C1205;
    },
    /*_web_unicode.WordCharProperty.RegionalIndicator*/get RegionalIndicator() {
      return C[1206] || CT.C1206;
    },
    /*_web_unicode.WordCharProperty.Format*/get Format() {
      return C[1207] || CT.C1207;
    },
    /*_web_unicode.WordCharProperty.Katakana*/get Katakana() {
      return C[1208] || CT.C1208;
    },
    /*_web_unicode.WordCharProperty.ALetter*/get ALetter() {
      return C[1209] || CT.C1209;
    },
    /*_web_unicode.WordCharProperty.MidLetter*/get MidLetter() {
      return C[1210] || CT.C1210;
    },
    /*_web_unicode.WordCharProperty.MidNum*/get MidNum() {
      return C[1211] || CT.C1211;
    },
    /*_web_unicode.WordCharProperty.MidNumLet*/get MidNumLet() {
      return C[1212] || CT.C1212;
    },
    /*_web_unicode.WordCharProperty.Numeric*/get Numeric() {
      return C[1213] || CT.C1213;
    },
    /*_web_unicode.WordCharProperty.ExtendNumLet*/get ExtendNumLet() {
      return C[1214] || CT.C1214;
    },
    /*_web_unicode.WordCharProperty.ZWJ*/get ZWJ() {
      return C[1215] || CT.C1215;
    },
    /*_web_unicode.WordCharProperty.WSegSpace*/get WSegSpace() {
      return C[1216] || CT.C1216;
    },
    /*_web_unicode.WordCharProperty.Unknown*/get Unknown() {
      return C[1217] || CT.C1217;
    }
  }, false);
  dart.defineLazy(_web_unicode, {
    /*_web_unicode.packedLineBreakProperties*/get packedLineBreakProperties() {
      return 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    },
    /*_web_unicode.singleLineBreakRangesCount*/get singleLineBreakRangesCount() {
      return 937;
    },
    /*_web_unicode.defaultLineCharProperty*/get defaultLineCharProperty() {
      return C[1169] || CT.C1169;
    },
    /*_web_unicode.packedWordBreakProperties*/get packedWordBreakProperties() {
      return "000a!E000b000cF000d!D000w!R000y!A0013!B0018!M001a!N001c001lO001m!L001n!M001t002iK002n!P002p003eK003p!F004q!K004t!I0051!K0053!L0056!K005c005yK0060006uK006w00k7K00ke00lbK00lc00ofG00og00okK00om00onK00oq00otK00ou!M00ov!K00p2!K00p3!L00p400p6K00p8!K00pa00ptK00pv00s5K00s700w1K00w300w9G00wa010vK010x011yK01210124K0126!K0127!L0128013cK013d!M013e!K013l014tG014v!G014x014yG01500151G0153!G015c0162C0167016aC016b!K016c!L016o016tI01700171M0174017eG017g!I017k018qK018r019bG019c019lO019n!O019o!M019q019rK019s!G019t01cjK01cl!K01cm01csG01ct!I01cv01d0G01d101d2K01d301d4G01d601d9G01da01dbK01dc01dlO01dm01doK01dr!K01e7!I01e8!K01e9!G01ea01f3K01f401fuG01fx01idK01ie01ioG01ip!K01j401jdO01je01kaK01kb01kjG01kk01klK01ko!M01kq!K01kt!G01kw01lhK01li01llG01lm!K01ln01lvG01lw!K01lx01lzG01m0!K01m101m5G01mo01ncK01nd01nfG01nk01nuK01pc01pwK01py01qfK01qr01r5G01r6!I01r701s3G01s401tlK01tm01toG01tp!K01tq01u7G01u8!K01u901ufG01ug01upK01uq01urG01uu01v3O01v501vkK01vl01vnG01vp01vwK01vz01w0K01w301woK01wq01wwK01wy!K01x201x5K01x8!G01x9!K01xa01xgG01xj01xkG01xn01xpG01xq!K01xz!G01y401y5K01y701y9K01ya01ybG01ye01ynO01yo01ypK01z0!K01z2!G01z501z7G01z901zeK01zj01zkK01zn0208K020a020gK020i020jK020l020mK020o020pK020s!G020u020yG02130214G02170219G021d!G021l021oK021q!K021y0227O02280229G022a022cK022d!G022p022rG022t0231K02330235K0237023sK023u0240K02420243K02450249K024c!G024d!K024e024lG024n024pG024r024tG024w!K025c025dK025e025fG025i025rO0261!K02620267G0269026bG026d026kK026n026oK026r027cK027e027kK027m027nK027p027tK027w!G027x!K027y0284G02870288G028b028dG028l028nG028s028tK028v028xK028y028zG0292029bO029d!K029u!G029v!K029x02a2K02a602a8K02aa02adK02ah02aiK02ak!K02am02anK02ar02asK02aw02ayK02b202bdK02bi02bmG02bq02bsG02bu02bxG02c0!K02c7!G02cm02cvO02dc02dgG02dh02doK02dq02dsK02du02egK02ei02exK02f1!K02f202f8G02fa02fcG02fe02fhG02fp02fqG02fs02fuK02g002g1K02g202g3G02g602gfO02gw!K02gx02gzG02h102h8K02ha02hcK02he02i0K02i202ibK02id02ihK02ik!G02il!K02im02isG02iu02iwG02iy02j1G02j902jaG02ji!K02jk02jlK02jm02jnG02jq02jzO02k102k2K02kg02kjG02kk02ksK02ku02kwK02ky02m2K02m302m4G02m5!K02m602mcG02me02mgG02mi02mlG02mm!K02ms02muK02mv!G02n302n5K02n602n7G02na02njO02nu02nzK02o102o3G02o502omK02oq02pdK02pf02pnK02pp!K02ps02pyK02q2!G02q702qcG02qe!G02qg02qnG02qu02r3O02r602r7G02sx!G02t002t6G02tj02tqG02ts02u1O02wh!G02wk02wsG02x402x9G02xc02xlO02yo!K02zc02zdG02zk02ztO0305!G0307!G0309!G030e030fG030g030nK030p031oK031t032cG032e032fG032g032kK032l032vG032x033wG0346!G036z037iG037k037tO03860389G038e038gG038i038kG038n038tG038x0390G039e039pG039r!G039s03a1O03a203a5G03a803b9K03bb!K03bh!K03bk03cqK03cs03m0K03m203m5K03m803meK03mg!K03mi03mlK03mo03nsK03nu03nxK03o003owK03oy03p1K03p403paK03pc!K03pe03phK03pk03pyK03q003rkK03rm03rpK03rs03tmK03tp03trG03uo03v3K03vk03xxK03y003y5K03y904fgK04fj04fzK04g0!R04g104gqK04gw04iyK04j204jcK04jk04jwK04jy04k1K04k204k4G04kg04kxK04ky04l0G04lc04ltK04lu04lvG04m804mkK04mm04moK04mq04mrG04ok04pfG04pp!G04ps04q1O04qz04r1G04r2!I04r404rdO04rk04u0K04u804ucK04ud04ueG04uf04vcK04vd!G04ve!K04vk04xhK04xs04ymK04yo04yzG04z404zfG04zq04zzO053k053tO054w055iK055j055nG0579057iG057k058cG058f!G058g058pO058w0595O059s05a8G05c005c4G05c505dfK05dg05dwG05dx05e3K05e805ehO05ez05f7G05fk05fmG05fn05ggK05gh05gtG05gu05gvK05gw05h5O05h605idK05ie05irG05j405k3K05k405knG05kw05l5O05l905lbK05lc05llO05lm05mlK05mo05mwK05n405oaK05od05ofK05ow05oyG05p005pkG05pl05poK05pp!G05pq05pvK05pw!G05px05pyK05pz05q1G05q2!K05q805vjK05vk05x5G05x705xbG05xc0651K06540659K065c066dK066g066lK066o066vK066x!K066z!K0671!K0673067xK0680069gK069i069oK069q!K069u069wK069y06a4K06a806abK06ae06ajK06ao06b0K06b606b8K06ba06bgK06bk06bqR06bs06buR06bw!G06bx!Q06by06bzI06c806c9N06ck!N06cn!L06co06cpF06cq06cuI06cv!P06db06dcP06dg!M06dw!P06e7!R06e806ecI06ee06enI06ep!K06f3!K06fk06fwK06hc06i8G06iq!K06iv!K06iy06j7K06j9!K06jd06jhK06jo!K06jq!K06js!K06ju06jxK06jz06k9K06kc06kfK06kl06kpK06ku!K06lc06mgK079207ahK08ow08q6K08q808riK08rk08v8K08vf08viK08vj08vlG08vm08vnK08w008x1K08x3!K08x9!K08xc08yvK08z3!K08zj!G08zk0906K090g090mK090o090uK090w0912K0914091aK091c091iK091k091qK091s091yK09200926K09280933G094f!K09hc!R09hh!K09ii09inG09ip09itJ09iz09j0K09ll09lmG09ln09loJ09ls09oaJ09oc09ofJ09ol09prK09pt09seK09sw09trK09v409vjJ0a1c0a2mJ0a2o0a53J0vls0wi4K0wk00wl9K0wlc0wssK0wsw0wtbK0wtc0wtlO0wtm0wtnK0wu80wviK0wvj0wvmG0wvo0wvxG0wvz0wwtK0wwu0wwvG0www0wz3K0wz40wz5G0wzs0x4vK0x4y0x56K0x6d0x6pK0x6q!G0x6r0x6tK0x6u!G0x6v0x6yK0x6z!G0x700x7mK0x7n0x7rG0x7w!G0x8g0x9vK0xa80xa9G0xaa0xbnK0xbo0xc5G0xcg0xcpO0xcw0xddG0xde0xdjK0xdn!K0xdp0xdqK0xdr!G0xds0xe1O0xe20xetK0xeu0xf1G0xf40xfqK0xfr0xg3G0xgg0xh8K0xhc0xhfG0xhg0xiqK0xir0xj4G0xjj!K0xjk0xjtO0xk5!G0xkg0xkpO0xkw0xm0K0xm10xmeG0xmo0xmqK0xmr!G0xms0xmzK0xn00xn1G0xn40xndO0xob0xodG0xps!G0xpu0xpwG0xpz0xq0G0xq60xq7G0xq9!G0xr40xreK0xrf0xrjG0xrm0xroK0xrp0xrqG0xs10xs6K0xs90xseK0xsh0xsmK0xsw0xt2K0xt40xtaK0xtc0xuxK0xv40xyaK0xyb0xyiG0xyk0xylG0xyo0xyxO0xz416lfK16ls16meK16mj16nvK1dkw1dl2K1dlf1dljK1dlp!C1dlq!G1dlr1dm0C1dm21dmeC1dmg1dmkC1dmm!C1dmo1dmpC1dmr1dmsC1dmu1dn3C1dn41dptK1dqr1e0tK1e1c1e33K1e361e4nK1e5s1e63K1e681e6nG1e6o!M1e6r!L1e6s!M1e741e7jG1e7n1e7oP1e8d1e8fP1e8g!M1e8i!N1e8k!M1e8l!L1e9c1e9gK1e9i1ed8K1edb!I1edj!N1edo!M1edq!N1eds1ee1O1ee2!L1ee3!M1ee91eeyK1ef3!P1ef51efuK1eg61ehpJ1ehq1ehrG1ehs1eimK1eiq1eivK1eiy1ej3K1ej61ejbK1eje1ejgK1ek91ekbI1ekg1ekrK1ekt1eliK1elk1em2K1em41em5K1em71emlK1emo1en1K1eo01ereK1etc1eusK1eyl!G1f281f30K1f341f4gK1f4w!G1f5s1f6nK1f711f7uK1f801f91K1f921f96G1f9c1fa5K1fa81fb7K1fbc1fbjK1fbl1fbpK1fcw1fh9K1fhc1fhlO1fhs1firK1fiw1fjvK1fk01fl3K1flc1fmrK1fr41fzqK1g001g0lK1g0w1g13K1g5c1g5hK1g5k!K1g5m1g6tK1g6v1g6wK1g70!K1g731g7pK1g801g8mK1g8w1g9qK1gbk1gc2K1gc41gc5K1gcg1gd1K1gdc1ge1K1gg01ghjK1ghq1ghrK1gjk!K1gjl1gjnG1gjp1gjqG1gjw1gjzG1gk01gk3K1gk51gk7K1gk91gl1K1gl41gl6G1glb!G1gm81gn0K1gn41gnwK1gow1gp3K1gp51gpwK1gpx1gpyG1gqo1gs5K1gsg1gt1K1gtc1gtuK1gu81gupK1gxs1gzsK1h1c1h2qK1h341h4iK1h4w1h5vK1h5w1h5zG1h681h6hO1hfk1hgpK1hgr1hgsG1hgw1hgxK1hj41hjwK1hk7!K1hkg1hl1K1hl21hlcG1ho01hokK1hpc1hpyK1hq81hqaG1hqb1hrrK1hrs1hs6G1ht21htbO1htr1htuG1htv1hv3K1hv41hveG1hvh!I1hvx!I1hw01hwoK1hww1hx5O1hxc1hxeG1hxf1hyeK1hyf1hysG1hyu1hz3O1hz8!K1hz91hzaG1hzb!K1hzk1i0iK1i0j!G1i0m!K1i0w1i0yG1i0z1i2aK1i2b1i2oG1i2p1i2sK1i2x1i30G1i321i33G1i341i3dO1i3e!K1i3g!K1i4g1i4xK1i4z1i5nK1i5o1i5zG1i66!G1i801i86K1i88!K1i8a1i8dK1i8f1i8tK1i8v1i94K1i9c1iamK1ian1iayG1ib41ibdO1ibk1ibnG1ibp1ibwK1ibz1ic0K1ic31icoK1icq1icwK1icy1iczK1id11id5K1id71id8G1id9!K1ida1idgG1idj1idkG1idn1idpG1ids!K1idz!G1ie51ie9K1iea1iebG1iee1iekG1ieo1iesG1iio1ik4K1ik51ikmG1ikn1ikqK1ikw1il5O1ila!G1ilb1ildK1im81injK1ink1io3G1io41io5K1io7!K1iog1iopO1itc1iumK1iun1iutG1iuw1iv4G1ivs1ivvK1ivw1ivxG1iww1iy7K1iy81iyoG1iys!K1iz41izdO1j0g1j1mK1j1n1j1zG1j20!K1j281j2hO1j4t1j57G1j5c1j5lO1jb41jcbK1jcc1jcqG1jfk1jhbK1jhc1jhlO1ji71jieK1jih!K1jik1jirK1jit1jiuK1jiw1jjjK1jjk1jjpG1jjr1jjsG1jjv1jjyG1jjz!K1jk0!G1jk1!K1jk21jk3G1jkg1jkpO1jmo1jmvK1jmy1jo0K1jo11jo7G1joa1jogG1joh!K1joj!K1jok!G1jpc!K1jpd1jpmG1jpn1jqqK1jqr1jqxG1jqy!K1jqz1jr2G1jrb!G1jrk!K1jrl1jrvG1jrw1jt5K1jt61jtlG1jtp!K1juo1jw8K1k3k1k3sK1k3u1k4uK1k4v1k52G1k541k5bG1k5c!K1k5s1k61O1k6q1k7jK1k7m1k87G1k891k8mG1kao1kauK1kaw1kaxK1kaz1kc0K1kc11kc6G1kca!G1kcc1kcdG1kcf1kclG1kcm!K1kcn!G1kcw1kd5O1kdc1kdhK1kdj1kdkK1kdm1kehK1kei1kemG1keo1kepG1ker1kevG1kew!K1kf41kfdO1ko01koiK1koj1komG1kts!K1kw01lllK1log1lriK1ls01lxfK1o1s1oviK1ovk1ovsI1s001sg6K1z401zjsK1zk01zkuK1zkw1zl5O1zo01zotK1zow1zp0G1zpc1zqnK1zqo1zquG1zr41zr7K1zrk1zrtO1zs31zsnK1zst1ztbK20cg20e7K20hs20juK20jz!G20k0!K20k120ljG20lr20luG20lv20m7K20o020o1K20o3!K20o4!G20og20ohG2dc0!J2dlw2dlzJ2fpc2fsaK2fsg2fssK2fsw2ft4K2ftc2ftlK2ftp2ftqG2fts2ftvI2jxh2jxlG2jxp2jxuG2jxv2jy2I2jy32jyaG2jyd2jyjG2jze2jzhG2k3m2k3oG2kg02kicK2kie2kkcK2kke2kkfK2kki!K2kkl2kkmK2kkp2kksK2kku2kl5K2kl7!K2kl92klfK2klh2kn9K2knb2kneK2knh2knoK2knq2knwK2kny2kopK2kor2kouK2kow2kp0K2kp2!K2kp62kpcK2kpe2kytK2kyw2kzkK2kzm2l0aK2l0c2l16K2l182l1wK2l1y2l2sK2l2u2l3iK2l3k2l4eK2l4g2l54K2l562l60K2l622l6qK2l6s2l6zK2l722l8fO2lmo2lo6G2lob2lpoG2lpx!G2lqc!G2lqz2lr3G2lr52lrjG2mtc2mtiG2mtk2mu0G2mu32mu9G2mub2mucG2mue2muiG2n0g2n1oK2n1s2n1yG2n1z2n25K2n282n2hO2n2m!K2ncw2ne3K2ne42ne7G2ne82nehO2oe82ojoK2ok02ok6G2olc2on7K2on82oneG2onf!K2onk2ontO2pkw2pkzK2pl12plrK2plt2pluK2plw!K2plz!K2pm12pmaK2pmc2pmfK2pmh!K2pmj!K2pmq!K2pmv!K2pmx!K2pmz!K2pn12pn3K2pn52pn6K2pn8!K2pnb!K2pnd!K2pnf!K2pnh!K2pnj!K2pnl2pnmK2pno!K2pnr2pnuK2pnw2po2K2po42po7K2po92pocK2poe!K2pog2popK2por2pp7K2ppd2ppfK2pph2pplK2ppn2pq3K2q7k2q89K2q8g2q95K2q9c2qa1K2qcm2qdbH2qrf2qrjG2sc02sc9Ojny9!Ijnz4jo1rGjo5cjobzG";
    },
    /*_web_unicode.singleWordBreakRangesCount*/get singleWordBreakRangesCount() {
      return 231;
    },
    /*_web_unicode.defaultWordCharProperty*/get defaultWordCharProperty() {
      return C[1217] || CT.C1217;
    }
  }, false);
  var _goalToEventCode = dart.privateName(_web_locale_keymap, "_goalToEventCode");
  var _data$2 = dart.privateName(_web_locale_keymap, "_data");
  var _offset = dart.privateName(_web_locale_keymap, "_offset");
  _web_locale_keymap._StringStream = class _StringStream extends core.Object {
    static ['_#new#tearOff'](_data) {
      if (_data == null) dart.nullFailed(I[413], 128, 22, "_data");
      return new _web_locale_keymap._StringStream.new(_data);
    }
    get offest() {
      return this[_offset];
    }
    readIntAsVerbatim() {
      let result = this[_data$2][$codeUnitAt](this[_offset]);
      this[_offset] = dart.notNull(this[_offset]) + 1;
      if (!(result >= dart.notNull(_web_locale_keymap._kMarshallIntBase))) dart.assertFailed(null, I[413], 144, 12, "result >= _kMarshallIntBase");
      return result - dart.notNull(_web_locale_keymap._kMarshallIntBase);
    }
    readIntAsChar() {
      let result = this[_data$2][$codeUnitAt](this[_offset]);
      this[_offset] = dart.notNull(this[_offset]) + 1;
      return result;
    }
    readEventKey() {
      let char = core.String.fromCharCode(this.readIntAsChar());
      if (char == _web_locale_keymap._kUseDead) {
        return "Dead";
      } else {
        return char;
      }
    }
    readEventCode() {
      let charCode = this[_data$2][$codeUnitAt](this[_offset]);
      this[_offset] = dart.notNull(this[_offset]) + 1;
      return dart.nullCheck(this[_goalToEventCode][$_get](charCode));
    }
  };
  (_web_locale_keymap._StringStream.new = function(_data) {
    if (_data == null) dart.nullFailed(I[413], 128, 22, "_data");
    this[_goalToEventCode] = G$.MapOfint$String().fromEntries(_web_locale_keymap.kLayoutGoals[$entries][$map](T$13.MapEntryOfint$String(), dart.fn(beforeEntry => {
      if (beforeEntry == null) dart.nullFailed(I[413], 134, 38, "beforeEntry");
      return new (G$.MapEntryOfint$String()).__(beforeEntry.value[$codeUnitAt](0), beforeEntry.key);
    }, T$13.MapEntryOfString$StringToMapEntryOfint$String())));
    this[_data$2] = _data;
    this[_offset] = 0;
    ;
  }).prototype = _web_locale_keymap._StringStream.prototype;
  dart.addRtiResources(_web_locale_keymap._StringStream, ["_web_locale_keymap|_StringStream"]);
  dart.setMethodSignature(_web_locale_keymap._StringStream, () => dart.global.Object.setPrototypeOf({
    readIntAsVerbatim: T$.VoidToint(),
    readIntAsChar: T$.VoidToint(),
    readEventKey: T$.VoidToString(),
    readEventCode: T$.VoidToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_web_locale_keymap._StringStream))));
  dart.setGetterSignature(_web_locale_keymap._StringStream, () => dart.global.Object.setPrototypeOf({offest: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_web_locale_keymap._StringStream))));
  dart.setLibraryUri(_web_locale_keymap._StringStream, I[318]);
  dart.setFieldSignature(_web_locale_keymap._StringStream, () => dart.global.Object.setPrototypeOf({
    [_data$2]: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_goalToEventCode]: {type: T$11.MapOfint$String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_offset]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_web_locale_keymap._StringStream))));
  var _mapping$ = dart.privateName(_web_locale_keymap, "_mapping");
  _web_locale_keymap.LocaleKeymap = class LocaleKeymap extends core.Object {
    static ['_#win#tearOff']() {
      return new _web_locale_keymap.LocaleKeymap.win();
    }
    static ['_#linux#tearOff']() {
      return new _web_locale_keymap.LocaleKeymap.linux();
    }
    static ['_#darwin#tearOff']() {
      return new _web_locale_keymap.LocaleKeymap.darwin();
    }
    getLogicalKey(eventCode, eventKey, eventKeyCode) {
      let t$361824, t$361824$, t$361824$0, t$361824$1, t$361824$2;
      if (eventKeyCode == null) dart.nullFailed(I[414], 38, 63, "eventKeyCode");
      let result = (t$361824 = this[_mapping$][$_get](eventCode), t$361824 == null ? null : t$361824[$_get](eventKey));
      if (result === 255) {
        return eventKeyCode;
      }
      if (result == null) {
        if ((t$361824$ = eventCode, t$361824$ == null ? "" : t$361824$)[$isEmpty] && (t$361824$0 = eventKey, t$361824$0 == null ? "" : t$361824$0)[$isEmpty]) {
          return null;
        }
        let heuristicResult = _web_locale_keymap.heuristicMapper((t$361824$1 = eventCode, t$361824$1 == null ? "" : t$361824$1), (t$361824$2 = eventKey, t$361824$2 == null ? "" : t$361824$2));
        if (heuristicResult != null) {
          return heuristicResult;
        }
        let characterLogicalKey = _web_locale_keymap._characterToLogicalKey(eventKey);
        if (characterLogicalKey != null) {
          return characterLogicalKey;
        }
      }
      return result;
    }
  };
  (_web_locale_keymap.LocaleKeymap.win = function() {
    this[_mapping$] = _web_locale_keymap.getMappingDataWin();
    ;
  }).prototype = _web_locale_keymap.LocaleKeymap.prototype;
  (_web_locale_keymap.LocaleKeymap.linux = function() {
    this[_mapping$] = _web_locale_keymap.getMappingDataLinux();
    ;
  }).prototype = _web_locale_keymap.LocaleKeymap.prototype;
  (_web_locale_keymap.LocaleKeymap.darwin = function() {
    this[_mapping$] = _web_locale_keymap.getMappingDataDarwin();
    ;
  }).prototype = _web_locale_keymap.LocaleKeymap.prototype;
  dart.addRtiResources(_web_locale_keymap.LocaleKeymap, ["_web_locale_keymap|LocaleKeymap"]);
  dart.setMethodSignature(_web_locale_keymap.LocaleKeymap, () => dart.global.Object.setPrototypeOf({getLogicalKey: T$13.StringNAndStringNAndintTointN()}, dart.getMethods(dart.global.Object.getPrototypeOf(_web_locale_keymap.LocaleKeymap))));
  dart.setLibraryUri(_web_locale_keymap.LocaleKeymap, I[318]);
  dart.setFieldSignature(_web_locale_keymap.LocaleKeymap, () => dart.global.Object.setPrototypeOf({[_mapping$]: {type: T$13.MapOfString$MapOfString$int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_web_locale_keymap.LocaleKeymap))));
  _web_locale_keymap._isAscii = function _isAscii(charCode) {
    if (charCode == null) dart.nullFailed(I[413], 88, 19, "charCode");
    return dart.notNull(charCode) >= 32 && dart.notNull(charCode) <= 127;
  };
  _web_locale_keymap.isLetter = function isLetter(charCode) {
    if (charCode == null) dart.nullFailed(I[413], 94, 19, "charCode");
    return dart.notNull(charCode) >= dart.notNull(_web_locale_keymap._kLowerA) && dart.notNull(charCode) <= dart.notNull(_web_locale_keymap._kLowerZ) || dart.notNull(charCode) >= dart.notNull(_web_locale_keymap._kUpperA) && dart.notNull(charCode) <= dart.notNull(_web_locale_keymap._kUpperZ);
  };
  _web_locale_keymap.heuristicMapper = function heuristicMapper(code, key) {
    let t$361824;
    if (code == null) dart.nullFailed(I[413], 103, 29, "code");
    if (key == null) dart.nullFailed(I[413], 103, 42, "key");
    if (code[$startsWith]("Digit")) {
      if (!(code.length === 6)) dart.assertFailed(null, I[413], 106, 12, "code.length == 6");
      return code[$codeUnitAt](5);
    }
    let charCode = key[$codeUnitAt](0);
    if (key.length > 1 || !dart.test(_web_locale_keymap._isAscii(charCode))) {
      t$361824 = _web_locale_keymap.kLayoutGoals[$_get](code);
      return t$361824 == null ? null : t$361824[$codeUnitAt](0);
    }
    if (dart.test(_web_locale_keymap.isLetter(charCode))) {
      return key[$toLowerCase]()[$codeUnitAt](0);
    }
    return null;
  };
  _web_locale_keymap._unmarshallCodeMap = function _unmarshallCodeMap(stream) {
    if (stream == null) dart.nullFailed(I[413], 170, 51, "stream");
    let entryNum = stream.readIntAsVerbatim();
    return (() => {
      let t$361824 = new (G.IdentityMapOfString$int()).new();
      for (let i = 0; i < dart.notNull(entryNum); i = i + 1)
        t$361824[$_set](stream.readEventKey(), stream.readIntAsChar());
      return t$361824;
    })();
  };
  _web_locale_keymap.unmarshallMappingData = function unmarshallMappingData(compressed) {
    if (compressed == null) dart.nullFailed(I[413], 179, 60, "compressed");
    let stream = new _web_locale_keymap._StringStream.new(compressed);
    let eventCodeNum = stream.readIntAsVerbatim();
    return (() => {
      let t$361825 = new (G$.IdentityMapOfString$MapOfString$int()).new();
      for (let i = 0; i < dart.notNull(eventCodeNum); i = i + 1)
        t$361825[$_set](stream.readEventCode(), _web_locale_keymap._unmarshallCodeMap(stream));
      return t$361825;
    })();
  };
  _web_locale_keymap.getMappingDataWin = function getMappingDataWin() {
    return _web_locale_keymap.unmarshallMappingData(";b1{bc1&cf1[fg1]gm2<m?mn1}nq3/q@q\\qv1@vw3\"w?w|wx2#x)xz2(z>y");
  };
  _web_locale_keymap.getMappingDataLinux = function getMappingDataLinux() {
    return _web_locale_keymap.unmarshallMappingData("8a2@qΩqk1&kq3@qÆaæaw2<z«zx1>xy2¥ÿ←ÿz5<z»yŁwłw›y;2µmºm");
  };
  _web_locale_keymap.getMappingDataDarwin = function getMappingDataDarwin() {
    return _web_locale_keymap.unmarshallMappingData("M,2„w∑wa2Ωq‡qb2˛x≈xc3 cÔj∆jd2þe´ef2þu¨ug2þÿˆih3 hÎÿ∂di3 iÇcçcj2Óh˙hk2ˇÿ†tl5 l@lþÿ|l˜nm1~mn3 nıÿ∫bo2®r‰rp2¬lÒlq2Æaæar3 rπp∏ps3 sØoøot2¥yÁyu3 u©g˝gv2˚kkw2ÂzÅzx2Œqœqy5 yÏfƒfˇzΩzz5 z¥y‡y‹ÿ›w.2√v◊v;4µmÍsÓmßs/2¸zΩz");
  };
  _web_locale_keymap._characterToLogicalKey = function _characterToLogicalKey(key) {
    if (key == null || key.length >= 2) {
      return null;
    }
    let result = key[$toLowerCase]()[$codeUnitAt](0);
    return result;
  };
  dart.defineLazy(_web_locale_keymap, {
    /*_web_locale_keymap.kUseKeyCode*/get kUseKeyCode() {
      return 255;
    },
    /*_web_locale_keymap._kUseDead*/get _kUseDead() {
      return core.String.fromCharCode(254);
    },
    /*_web_locale_keymap._kEventKeyDead*/get _kEventKeyDead() {
      return "Dead";
    },
    /*_web_locale_keymap.kLayoutGoals*/get kLayoutGoals() {
      return C[1218] || CT.C1218;
    },
    /*_web_locale_keymap._kLowerA*/get _kLowerA() {
      return "a"[$codeUnitAt](0);
    },
    /*_web_locale_keymap._kUpperA*/get _kUpperA() {
      return "A"[$codeUnitAt](0);
    },
    /*_web_locale_keymap._kLowerZ*/get _kLowerZ() {
      return "z"[$codeUnitAt](0);
    },
    /*_web_locale_keymap._kUpperZ*/get _kUpperZ() {
      return "Z"[$codeUnitAt](0);
    },
    /*_web_locale_keymap._kMarshallIntBase*/get _kMarshallIntBase() {
      return "0"[$codeUnitAt](0);
    }
  }, false);
  var serverHeader = dart.privateName(_http, "HttpServer.serverHeader");
  var autoCompress = dart.privateName(_http, "HttpServer.autoCompress");
  var idleTimeout = dart.privateName(_http, "HttpServer.idleTimeout");
  _http.HttpServer = class HttpServer extends core.Object {
    get serverHeader() {
      return this[serverHeader];
    }
    set serverHeader(value) {
      this[serverHeader] = value;
    }
    get autoCompress() {
      return this[autoCompress];
    }
    set autoCompress(value) {
      if (value == null) dart.nullFailed(I[415], 140, 8, "autoCompress");
      this[autoCompress] = value;
    }
    get idleTimeout() {
      return this[idleTimeout];
    }
    set idleTimeout(value) {
      this[idleTimeout] = value;
    }
    static bind(address, port, opts) {
      if (port == null) dart.nullFailed(I[415], 190, 47, "port");
      let backlog = opts && 'backlog' in opts ? opts.backlog : 0;
      if (backlog == null) dart.nullFailed(I[415], 191, 16, "backlog");
      let v6Only = opts && 'v6Only' in opts ? opts.v6Only : false;
      if (v6Only == null) dart.nullFailed(I[415], 191, 34, "v6Only");
      let shared = opts && 'shared' in opts ? opts.shared : false;
      if (shared == null) dart.nullFailed(I[415], 191, 55, "shared");
      return _http._HttpServer.bind(address, port, backlog, v6Only, shared);
    }
    static bindSecure(address, port, context, opts) {
      if (port == null) dart.nullFailed(I[415], 233, 24, "port");
      if (context == null) dart.nullFailed(I[415], 233, 46, "context");
      let backlog = opts && 'backlog' in opts ? opts.backlog : 0;
      if (backlog == null) dart.nullFailed(I[415], 234, 16, "backlog");
      let v6Only = opts && 'v6Only' in opts ? opts.v6Only : false;
      if (v6Only == null) dart.nullFailed(I[415], 235, 16, "v6Only");
      let requestClientCertificate = opts && 'requestClientCertificate' in opts ? opts.requestClientCertificate : false;
      if (requestClientCertificate == null) dart.nullFailed(I[415], 236, 16, "requestClientCertificate");
      let shared = opts && 'shared' in opts ? opts.shared : false;
      if (shared == null) dart.nullFailed(I[415], 237, 16, "shared");
      return _http._HttpServer.bindSecure(address, port, context, backlog, v6Only, requestClientCertificate, shared);
    }
    static listenOn(serverSocket) {
      if (serverSocket == null) dart.nullFailed(I[415], 244, 44, "serverSocket");
      return new _http._HttpServer.listenOn(serverSocket);
    }
    static ['_#listenOn#tearOff'](serverSocket) {
      if (serverSocket == null) dart.nullFailed(I[415], 244, 44, "serverSocket");
      return _http.HttpServer.listenOn(serverSocket);
    }
  };
  (_http.HttpServer[dart.mixinNew] = function() {
    this[serverHeader] = null;
    this[autoCompress] = false;
    this[idleTimeout] = C[1219] || CT.C1219;
  }).prototype = _http.HttpServer.prototype;
  dart.addRtiResources(_http.HttpServer, ["_http|HttpServer", "async|Stream"]);
  dart.setStaticMethodSignature(_http.HttpServer, () => ['bind', 'bindSecure', 'listenOn']);
  dart.setLibraryUri(_http.HttpServer, I[416]);
  dart.setFieldSignature(_http.HttpServer, () => dart.global.Object.setPrototypeOf({
    serverHeader: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    autoCompress: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    idleTimeout: {type: T$1.DurationN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.HttpServer))));
  var total = dart.privateName(_http, "HttpConnectionsInfo.total");
  var active = dart.privateName(_http, "HttpConnectionsInfo.active");
  var idle = dart.privateName(_http, "HttpConnectionsInfo.idle");
  var closing = dart.privateName(_http, "HttpConnectionsInfo.closing");
  _http.HttpConnectionsInfo = class HttpConnectionsInfo extends core.Object {
    get total() {
      return this[total];
    }
    set total(value) {
      if (value == null) dart.nullFailed(I[415], 281, 7, "total");
      this[total] = value;
    }
    get active() {
      return this[active];
    }
    set active(value) {
      if (value == null) dart.nullFailed(I[415], 285, 7, "active");
      this[active] = value;
    }
    get idle() {
      return this[idle];
    }
    set idle(value) {
      if (value == null) dart.nullFailed(I[415], 288, 7, "idle");
      this[idle] = value;
    }
    get closing() {
      return this[closing];
    }
    set closing(value) {
      if (value == null) dart.nullFailed(I[415], 294, 7, "closing");
      this[closing] = value;
    }
    static ['_#new#tearOff']() {
      return new _http.HttpConnectionsInfo.new();
    }
  };
  (_http.HttpConnectionsInfo.new = function() {
    this[total] = 0;
    this[active] = 0;
    this[idle] = 0;
    this[closing] = 0;
    ;
  }).prototype = _http.HttpConnectionsInfo.prototype;
  dart.addRtiResources(_http.HttpConnectionsInfo, ["_http|HttpConnectionsInfo"]);
  dart.setLibraryUri(_http.HttpConnectionsInfo, I[416]);
  dart.setFieldSignature(_http.HttpConnectionsInfo, () => dart.global.Object.setPrototypeOf({
    total: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    active: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    idle: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    closing: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.HttpConnectionsInfo))));
  var date = dart.privateName(_http, "HttpHeaders.date");
  var expires = dart.privateName(_http, "HttpHeaders.expires");
  var ifModifiedSince = dart.privateName(_http, "HttpHeaders.ifModifiedSince");
  var host = dart.privateName(_http, "HttpHeaders.host");
  var port = dart.privateName(_http, "HttpHeaders.port");
  var contentType = dart.privateName(_http, "HttpHeaders.contentType");
  var contentLength = dart.privateName(_http, "HttpHeaders.contentLength");
  var __HttpHeaders_persistentConnection = dart.privateName(_http, "_#HttpHeaders#persistentConnection");
  var __HttpHeaders_persistentConnection_isSet = dart.privateName(_http, "_#HttpHeaders#persistentConnection#isSet");
  var __HttpHeaders_chunkedTransferEncoding = dart.privateName(_http, "_#HttpHeaders#chunkedTransferEncoding");
  var __HttpHeaders_chunkedTransferEncoding_isSet = dart.privateName(_http, "_#HttpHeaders#chunkedTransferEncoding#isSet");
  _http.HttpHeaders = class HttpHeaders extends core.Object {
    get date() {
      return this[date];
    }
    set date(value) {
      this[date] = value;
    }
    get expires() {
      return this[expires];
    }
    set expires(value) {
      this[expires] = value;
    }
    get ifModifiedSince() {
      return this[ifModifiedSince];
    }
    set ifModifiedSince(value) {
      this[ifModifiedSince] = value;
    }
    get host() {
      return this[host];
    }
    set host(value) {
      this[host] = value;
    }
    get port() {
      return this[port];
    }
    set port(value) {
      this[port] = value;
    }
    get contentType() {
      return this[contentType];
    }
    set contentType(value) {
      this[contentType] = value;
    }
    get contentLength() {
      return this[contentLength];
    }
    set contentLength(value) {
      if (value == null) dart.nullFailed(I[415], 480, 7, "contentLength");
      this[contentLength] = value;
    }
    get persistentConnection() {
      let t$361826;
      return dart.test(this[__HttpHeaders_persistentConnection_isSet]) ? (t$361826 = this[__HttpHeaders_persistentConnection], t$361826) : dart.throw(new _internal.LateError.fieldNI("persistentConnection"));
    }
    set persistentConnection(persistentConnection$35param) {
      if (persistentConnection$35param == null) dart.nullFailed(I[415], 483, 13, "persistentConnection#param");
      this[__HttpHeaders_persistentConnection_isSet] = true;
      this[__HttpHeaders_persistentConnection] = persistentConnection$35param;
    }
    get chunkedTransferEncoding() {
      let t$361826;
      return dart.test(this[__HttpHeaders_chunkedTransferEncoding_isSet]) ? (t$361826 = this[__HttpHeaders_chunkedTransferEncoding], t$361826) : dart.throw(new _internal.LateError.fieldNI("chunkedTransferEncoding"));
    }
    set chunkedTransferEncoding(chunkedTransferEncoding$35param) {
      if (chunkedTransferEncoding$35param == null) dart.nullFailed(I[415], 488, 13, "chunkedTransferEncoding#param");
      this[__HttpHeaders_chunkedTransferEncoding_isSet] = true;
      this[__HttpHeaders_chunkedTransferEncoding] = chunkedTransferEncoding$35param;
    }
  };
  (_http.HttpHeaders.new = function() {
    this[date] = null;
    this[expires] = null;
    this[ifModifiedSince] = null;
    this[host] = null;
    this[port] = null;
    this[contentType] = null;
    this[contentLength] = -1;
    this[__HttpHeaders_persistentConnection] = null;
    this[__HttpHeaders_persistentConnection_isSet] = false;
    this[__HttpHeaders_chunkedTransferEncoding] = null;
    this[__HttpHeaders_chunkedTransferEncoding_isSet] = false;
    ;
  }).prototype = _http.HttpHeaders.prototype;
  dart.addRtiResources(_http.HttpHeaders, ["_http|HttpHeaders"]);
  dart.setGetterSignature(_http.HttpHeaders, () => dart.global.Object.setPrototypeOf({
    persistentConnection: T$.bool(),
    chunkedTransferEncoding: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http.HttpHeaders))));
  dart.setSetterSignature(_http.HttpHeaders, () => dart.global.Object.setPrototypeOf({
    persistentConnection: T$.bool(),
    chunkedTransferEncoding: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http.HttpHeaders))));
  dart.setLibraryUri(_http.HttpHeaders, I[416]);
  dart.setFieldSignature(_http.HttpHeaders, () => dart.global.Object.setPrototypeOf({
    date: {type: T$5.DateTimeN(), isConst: false, isFinal: false, libraryUri: I[11]},
    expires: {type: T$5.DateTimeN(), isConst: false, isFinal: false, libraryUri: I[11]},
    ifModifiedSince: {type: T$5.DateTimeN(), isConst: false, isFinal: false, libraryUri: I[11]},
    host: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    port: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    contentType: {type: T$13.ContentTypeN(), isConst: false, isFinal: false, libraryUri: I[416]},
    contentLength: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__HttpHeaders_persistentConnection]: {type: T$.boolN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__HttpHeaders_persistentConnection_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__HttpHeaders_chunkedTransferEncoding]: {type: T$.boolN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__HttpHeaders_chunkedTransferEncoding_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.HttpHeaders))));
  dart.setStaticFieldSignature(_http.HttpHeaders, () => ['acceptHeader', 'acceptCharsetHeader', 'acceptEncodingHeader', 'acceptLanguageHeader', 'acceptRangesHeader', 'accessControlAllowCredentialsHeader', 'accessControlAllowHeadersHeader', 'accessControlAllowMethodsHeader', 'accessControlAllowOriginHeader', 'accessControlExposeHeadersHeader', 'accessControlMaxAgeHeader', 'accessControlRequestHeadersHeader', 'accessControlRequestMethodHeader', 'ageHeader', 'allowHeader', 'authorizationHeader', 'cacheControlHeader', 'connectionHeader', 'contentEncodingHeader', 'contentLanguageHeader', 'contentLengthHeader', 'contentLocationHeader', 'contentMD5Header', 'contentRangeHeader', 'contentTypeHeader', 'dateHeader', 'etagHeader', 'expectHeader', 'expiresHeader', 'fromHeader', 'hostHeader', 'ifMatchHeader', 'ifModifiedSinceHeader', 'ifNoneMatchHeader', 'ifRangeHeader', 'ifUnmodifiedSinceHeader', 'lastModifiedHeader', 'locationHeader', 'maxForwardsHeader', 'pragmaHeader', 'proxyAuthenticateHeader', 'proxyAuthorizationHeader', 'rangeHeader', 'refererHeader', 'retryAfterHeader', 'serverHeader', 'teHeader', 'trailerHeader', 'transferEncodingHeader', 'upgradeHeader', 'userAgentHeader', 'varyHeader', 'viaHeader', 'warningHeader', 'wwwAuthenticateHeader', 'contentDisposition', 'cookieHeader', 'setCookieHeader', 'generalHeaders', 'entityHeaders', 'responseHeaders', 'requestHeaders']);
  dart.defineLazy(_http.HttpHeaders, {
    /*_http.HttpHeaders.acceptHeader*/get acceptHeader() {
      return "accept";
    },
    /*_http.HttpHeaders.acceptCharsetHeader*/get acceptCharsetHeader() {
      return "accept-charset";
    },
    /*_http.HttpHeaders.acceptEncodingHeader*/get acceptEncodingHeader() {
      return "accept-encoding";
    },
    /*_http.HttpHeaders.acceptLanguageHeader*/get acceptLanguageHeader() {
      return "accept-language";
    },
    /*_http.HttpHeaders.acceptRangesHeader*/get acceptRangesHeader() {
      return "accept-ranges";
    },
    /*_http.HttpHeaders.accessControlAllowCredentialsHeader*/get accessControlAllowCredentialsHeader() {
      return "access-control-allow-credentials";
    },
    /*_http.HttpHeaders.accessControlAllowHeadersHeader*/get accessControlAllowHeadersHeader() {
      return "access-control-allow-headers";
    },
    /*_http.HttpHeaders.accessControlAllowMethodsHeader*/get accessControlAllowMethodsHeader() {
      return "access-control-allow-methods";
    },
    /*_http.HttpHeaders.accessControlAllowOriginHeader*/get accessControlAllowOriginHeader() {
      return "access-control-allow-origin";
    },
    /*_http.HttpHeaders.accessControlExposeHeadersHeader*/get accessControlExposeHeadersHeader() {
      return "access-control-expose-headers";
    },
    /*_http.HttpHeaders.accessControlMaxAgeHeader*/get accessControlMaxAgeHeader() {
      return "access-control-max-age";
    },
    /*_http.HttpHeaders.accessControlRequestHeadersHeader*/get accessControlRequestHeadersHeader() {
      return "access-control-request-headers";
    },
    /*_http.HttpHeaders.accessControlRequestMethodHeader*/get accessControlRequestMethodHeader() {
      return "access-control-request-method";
    },
    /*_http.HttpHeaders.ageHeader*/get ageHeader() {
      return "age";
    },
    /*_http.HttpHeaders.allowHeader*/get allowHeader() {
      return "allow";
    },
    /*_http.HttpHeaders.authorizationHeader*/get authorizationHeader() {
      return "authorization";
    },
    /*_http.HttpHeaders.cacheControlHeader*/get cacheControlHeader() {
      return "cache-control";
    },
    /*_http.HttpHeaders.connectionHeader*/get connectionHeader() {
      return "connection";
    },
    /*_http.HttpHeaders.contentEncodingHeader*/get contentEncodingHeader() {
      return "content-encoding";
    },
    /*_http.HttpHeaders.contentLanguageHeader*/get contentLanguageHeader() {
      return "content-language";
    },
    /*_http.HttpHeaders.contentLengthHeader*/get contentLengthHeader() {
      return "content-length";
    },
    /*_http.HttpHeaders.contentLocationHeader*/get contentLocationHeader() {
      return "content-location";
    },
    /*_http.HttpHeaders.contentMD5Header*/get contentMD5Header() {
      return "content-md5";
    },
    /*_http.HttpHeaders.contentRangeHeader*/get contentRangeHeader() {
      return "content-range";
    },
    /*_http.HttpHeaders.contentTypeHeader*/get contentTypeHeader() {
      return "content-type";
    },
    /*_http.HttpHeaders.dateHeader*/get dateHeader() {
      return "date";
    },
    /*_http.HttpHeaders.etagHeader*/get etagHeader() {
      return "etag";
    },
    /*_http.HttpHeaders.expectHeader*/get expectHeader() {
      return "expect";
    },
    /*_http.HttpHeaders.expiresHeader*/get expiresHeader() {
      return "expires";
    },
    /*_http.HttpHeaders.fromHeader*/get fromHeader() {
      return "from";
    },
    /*_http.HttpHeaders.hostHeader*/get hostHeader() {
      return "host";
    },
    /*_http.HttpHeaders.ifMatchHeader*/get ifMatchHeader() {
      return "if-match";
    },
    /*_http.HttpHeaders.ifModifiedSinceHeader*/get ifModifiedSinceHeader() {
      return "if-modified-since";
    },
    /*_http.HttpHeaders.ifNoneMatchHeader*/get ifNoneMatchHeader() {
      return "if-none-match";
    },
    /*_http.HttpHeaders.ifRangeHeader*/get ifRangeHeader() {
      return "if-range";
    },
    /*_http.HttpHeaders.ifUnmodifiedSinceHeader*/get ifUnmodifiedSinceHeader() {
      return "if-unmodified-since";
    },
    /*_http.HttpHeaders.lastModifiedHeader*/get lastModifiedHeader() {
      return "last-modified";
    },
    /*_http.HttpHeaders.locationHeader*/get locationHeader() {
      return "location";
    },
    /*_http.HttpHeaders.maxForwardsHeader*/get maxForwardsHeader() {
      return "max-forwards";
    },
    /*_http.HttpHeaders.pragmaHeader*/get pragmaHeader() {
      return "pragma";
    },
    /*_http.HttpHeaders.proxyAuthenticateHeader*/get proxyAuthenticateHeader() {
      return "proxy-authenticate";
    },
    /*_http.HttpHeaders.proxyAuthorizationHeader*/get proxyAuthorizationHeader() {
      return "proxy-authorization";
    },
    /*_http.HttpHeaders.rangeHeader*/get rangeHeader() {
      return "range";
    },
    /*_http.HttpHeaders.refererHeader*/get refererHeader() {
      return "referer";
    },
    /*_http.HttpHeaders.retryAfterHeader*/get retryAfterHeader() {
      return "retry-after";
    },
    /*_http.HttpHeaders.serverHeader*/get serverHeader() {
      return "server";
    },
    /*_http.HttpHeaders.teHeader*/get teHeader() {
      return "te";
    },
    /*_http.HttpHeaders.trailerHeader*/get trailerHeader() {
      return "trailer";
    },
    /*_http.HttpHeaders.transferEncodingHeader*/get transferEncodingHeader() {
      return "transfer-encoding";
    },
    /*_http.HttpHeaders.upgradeHeader*/get upgradeHeader() {
      return "upgrade";
    },
    /*_http.HttpHeaders.userAgentHeader*/get userAgentHeader() {
      return "user-agent";
    },
    /*_http.HttpHeaders.varyHeader*/get varyHeader() {
      return "vary";
    },
    /*_http.HttpHeaders.viaHeader*/get viaHeader() {
      return "via";
    },
    /*_http.HttpHeaders.warningHeader*/get warningHeader() {
      return "warning";
    },
    /*_http.HttpHeaders.wwwAuthenticateHeader*/get wwwAuthenticateHeader() {
      return "www-authenticate";
    },
    /*_http.HttpHeaders.contentDisposition*/get contentDisposition() {
      return "content-disposition";
    },
    /*_http.HttpHeaders.cookieHeader*/get cookieHeader() {
      return "cookie";
    },
    /*_http.HttpHeaders.setCookieHeader*/get setCookieHeader() {
      return "set-cookie";
    },
    /*_http.HttpHeaders.generalHeaders*/get generalHeaders() {
      return C[1220] || CT.C1220;
    },
    /*_http.HttpHeaders.entityHeaders*/get entityHeaders() {
      return C[1221] || CT.C1221;
    },
    /*_http.HttpHeaders.responseHeaders*/get responseHeaders() {
      return C[1222] || CT.C1222;
    },
    /*_http.HttpHeaders.requestHeaders*/get requestHeaders() {
      return C[1223] || CT.C1223;
    }
  }, false);
  _http.HeaderValue = class HeaderValue extends core.Object {
    static new(value = "", parameters = C[1224] || CT.C1224) {
      if (value == null) dart.nullFailed(I[415], 612, 15, "value");
      if (parameters == null) dart.nullFailed(I[415], 612, 48, "parameters");
      return new _http._HeaderValue.new(value, parameters);
    }
    static ['_#new#tearOff'](value = "", parameters = C[1224] || CT.C1224) {
      if (value == null) dart.nullFailed(I[415], 612, 15, "value");
      if (parameters == null) dart.nullFailed(I[415], 612, 48, "parameters");
      return _http.HeaderValue.new(value, parameters);
    }
    static parse(value, opts) {
      if (value == null) dart.nullFailed(I[415], 618, 35, "value");
      let parameterSeparator = opts && 'parameterSeparator' in opts ? opts.parameterSeparator : ";";
      if (parameterSeparator == null) dart.nullFailed(I[415], 619, 15, "parameterSeparator");
      let valueSeparator = opts && 'valueSeparator' in opts ? opts.valueSeparator : null;
      let preserveBackslash = opts && 'preserveBackslash' in opts ? opts.preserveBackslash : false;
      if (preserveBackslash == null) dart.nullFailed(I[415], 621, 12, "preserveBackslash");
      return _http._HeaderValue.parse(value, {parameterSeparator: parameterSeparator, valueSeparator: valueSeparator, preserveBackslash: preserveBackslash});
    }
  };
  (_http.HeaderValue[dart.mixinNew] = function() {
  }).prototype = _http.HeaderValue.prototype;
  dart.addRtiResources(_http.HeaderValue, ["_http|HeaderValue"]);
  dart.setStaticMethodSignature(_http.HeaderValue, () => ['new', 'parse']);
  dart.setLibraryUri(_http.HeaderValue, I[416]);
  _http.HttpSession = class HttpSession extends core.Object {};
  (_http.HttpSession.new = function() {
    ;
  }).prototype = _http.HttpSession.prototype;
  dart.addRtiResources(_http.HttpSession, ["_http|HttpSession", "core|Map"]);
  dart.setLibraryUri(_http.HttpSession, I[416]);
  _http.ContentType = class ContentType extends core.Object {
    static new(primaryType, subType, opts) {
      if (primaryType == null) dart.nullFailed(I[415], 722, 30, "primaryType");
      if (subType == null) dart.nullFailed(I[415], 722, 50, "subType");
      let charset = opts && 'charset' in opts ? opts.charset : null;
      let parameters = opts && 'parameters' in opts ? opts.parameters : C[1224] || CT.C1224;
      if (parameters == null) dart.nullFailed(I[415], 723, 46, "parameters");
      return new _http._ContentType.new(primaryType, subType, charset, parameters);
    }
    static ['_#new#tearOff'](primaryType, subType, opts) {
      if (primaryType == null) dart.nullFailed(I[415], 722, 30, "primaryType");
      if (subType == null) dart.nullFailed(I[415], 722, 50, "subType");
      let charset = opts && 'charset' in opts ? opts.charset : null;
      let parameters = opts && 'parameters' in opts ? opts.parameters : C[1224] || CT.C1224;
      if (parameters == null) dart.nullFailed(I[415], 723, 46, "parameters");
      return _http.ContentType.new(primaryType, subType, {charset: charset, parameters: parameters});
    }
    static parse(value) {
      if (value == null) dart.nullFailed(I[415], 738, 35, "value");
      return _http._ContentType.parse(value);
    }
  };
  (_http.ContentType[dart.mixinNew] = function() {
  }).prototype = _http.ContentType.prototype;
  dart.addRtiResources(_http.ContentType, ["_http|ContentType", "_http|HeaderValue"]);
  dart.setStaticMethodSignature(_http.ContentType, () => ['new', 'parse']);
  dart.setLibraryUri(_http.ContentType, I[416]);
  dart.setStaticFieldSignature(_http.ContentType, () => ['text', 'html', 'json', 'binary']);
  dart.defineLazy(_http.ContentType, {
    /*_http.ContentType.text*/get text() {
      return _http.ContentType.new("text", "plain", {charset: "utf-8"});
    },
    /*_http.ContentType.html*/get html() {
      return _http.ContentType.new("text", "html", {charset: "utf-8"});
    },
    /*_http.ContentType.json*/get json() {
      return _http.ContentType.new("application", "json", {charset: "utf-8"});
    },
    /*_http.ContentType.binary*/get binary() {
      return _http.ContentType.new("application", "octet-stream");
    }
  }, false);
  var name$26 = dart.privateName(_http, "SameSite.name");
  _http.SameSite = class SameSite extends core.Object {
    get name() {
      return this[name$26];
    }
    set name(value) {
      super.name = value;
    }
    static ['_#_#tearOff'](name) {
      if (name == null) dart.nullFailed(I[415], 792, 25, "name");
      return new _http.SameSite.__(name);
    }
    toString() {
      return "SameSite=" + dart.str(this.name);
    }
  };
  (_http.SameSite.__ = function(name) {
    if (name == null) dart.nullFailed(I[415], 792, 25, "name");
    this[name$26] = name;
    ;
  }).prototype = _http.SameSite.prototype;
  dart.addRtiResources(_http.SameSite, ["_http|SameSite"]);
  dart.setLibraryUri(_http.SameSite, I[416]);
  dart.setFieldSignature(_http.SameSite, () => dart.global.Object.setPrototypeOf({name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http.SameSite))));
  dart.setStaticFieldSignature(_http.SameSite, () => ['lax', 'strict', 'none', 'values']);
  dart.defineExtensionMethods(_http.SameSite, ['toString']);
  dart.defineLazy(_http.SameSite, {
    /*_http.SameSite.lax*/get lax() {
      return C[1225] || CT.C1225;
    },
    /*_http.SameSite.strict*/get strict() {
      return C[1226] || CT.C1226;
    },
    /*_http.SameSite.none*/get none() {
      return C[1227] || CT.C1227;
    },
    /*_http.SameSite.values*/get values() {
      return C[1228] || CT.C1228;
    }
  }, false);
  var expires$ = dart.privateName(_http, "Cookie.expires");
  var maxAge = dart.privateName(_http, "Cookie.maxAge");
  var domain = dart.privateName(_http, "Cookie.domain");
  var path$8 = dart.privateName(_http, "Cookie.path");
  var secure = dart.privateName(_http, "Cookie.secure");
  var httpOnly = dart.privateName(_http, "Cookie.httpOnly");
  var sameSite = dart.privateName(_http, "Cookie.sameSite");
  var __Cookie_name = dart.privateName(_http, "_#Cookie#name");
  var __Cookie_name_isSet = dart.privateName(_http, "_#Cookie#name#isSet");
  var __Cookie_value = dart.privateName(_http, "_#Cookie#value");
  var __Cookie_value_isSet = dart.privateName(_http, "_#Cookie#value#isSet");
  _http.Cookie = class Cookie extends core.Object {
    get expires() {
      return this[expires$];
    }
    set expires(value) {
      this[expires$] = value;
    }
    get maxAge() {
      return this[maxAge];
    }
    set maxAge(value) {
      this[maxAge] = value;
    }
    get domain() {
      return this[domain];
    }
    set domain(value) {
      this[domain] = value;
    }
    get path() {
      return this[path$8];
    }
    set path(value) {
      this[path$8] = value;
    }
    get secure() {
      return this[secure];
    }
    set secure(value) {
      if (value == null) dart.nullFailed(I[415], 838, 8, "secure");
      this[secure] = value;
    }
    get httpOnly() {
      return this[httpOnly];
    }
    set httpOnly(value) {
      if (value == null) dart.nullFailed(I[415], 842, 8, "httpOnly");
      this[httpOnly] = value;
    }
    get sameSite() {
      return this[sameSite];
    }
    set sameSite(value) {
      this[sameSite] = value;
    }
    get name() {
      let t$361826;
      return dart.test(this[__Cookie_name_isSet]) ? (t$361826 = this[__Cookie_name], t$361826) : dart.throw(new _internal.LateError.fieldNI("name"));
    }
    set name(name$35param) {
      if (name$35param == null) dart.nullFailed(I[415], 811, 15, "name#param");
      this[__Cookie_name_isSet] = true;
      this[__Cookie_name] = name$35param;
    }
    get value() {
      let t$361826;
      return dart.test(this[__Cookie_value_isSet]) ? (t$361826 = this[__Cookie_value], t$361826) : dart.throw(new _internal.LateError.fieldNI("value"));
    }
    set value(value$35param) {
      if (value$35param == null) dart.nullFailed(I[415], 822, 15, "value#param");
      this[__Cookie_value_isSet] = true;
      this[__Cookie_value] = value$35param;
    }
    static new(name, value) {
      if (name == null) dart.nullFailed(I[415], 857, 25, "name");
      if (value == null) dart.nullFailed(I[415], 857, 38, "value");
      return new _http._Cookie.new(name, value);
    }
    static ['_#new#tearOff'](name, value) {
      if (name == null) dart.nullFailed(I[415], 857, 25, "name");
      if (value == null) dart.nullFailed(I[415], 857, 38, "value");
      return _http.Cookie.new(name, value);
    }
    static fromSetCookieValue(value) {
      if (value == null) dart.nullFailed(I[415], 861, 44, "value");
      return new _http._Cookie.fromSetCookieValue(value);
    }
    static ['_#fromSetCookieValue#tearOff'](value) {
      if (value == null) dart.nullFailed(I[415], 861, 44, "value");
      return _http.Cookie.fromSetCookieValue(value);
    }
  };
  (_http.Cookie[dart.mixinNew] = function() {
    this[__Cookie_name] = null;
    this[__Cookie_name_isSet] = false;
    this[__Cookie_value] = null;
    this[__Cookie_value_isSet] = false;
    this[expires$] = null;
    this[maxAge] = null;
    this[domain] = null;
    this[path$8] = null;
    this[secure] = false;
    this[httpOnly] = false;
    this[sameSite] = null;
  }).prototype = _http.Cookie.prototype;
  dart.addRtiResources(_http.Cookie, ["_http|Cookie"]);
  dart.setStaticMethodSignature(_http.Cookie, () => ['new', 'fromSetCookieValue']);
  dart.setGetterSignature(_http.Cookie, () => dart.global.Object.setPrototypeOf({
    name: T$.String(),
    value: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http.Cookie))));
  dart.setSetterSignature(_http.Cookie, () => dart.global.Object.setPrototypeOf({
    name: T$.String(),
    value: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http.Cookie))));
  dart.setLibraryUri(_http.Cookie, I[416]);
  dart.setFieldSignature(_http.Cookie, () => dart.global.Object.setPrototypeOf({
    [__Cookie_name]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__Cookie_name_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__Cookie_value]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__Cookie_value_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    expires: {type: T$5.DateTimeN(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxAge: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    domain: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    path: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    secure: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    httpOnly: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    sameSite: {type: T$13.SameSiteN(), isConst: false, isFinal: false, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.Cookie))));
  _http.HttpRequest = class HttpRequest extends core.Object {};
  (_http.HttpRequest.new = function() {
    ;
  }).prototype = _http.HttpRequest.prototype;
  dart.addRtiResources(_http.HttpRequest, ["_http|HttpRequest", "async|Stream"]);
  dart.setLibraryUri(_http.HttpRequest, I[416]);
  var contentLength$0 = dart.privateName(_http, "HttpResponse.contentLength");
  var statusCode = dart.privateName(_http, "HttpResponse.statusCode");
  var deadline = dart.privateName(_http, "HttpResponse.deadline");
  var bufferOutput = dart.privateName(_http, "HttpResponse.bufferOutput");
  var __HttpResponse_reasonPhrase = dart.privateName(_http, "_#HttpResponse#reasonPhrase");
  var __HttpResponse_reasonPhrase_isSet = dart.privateName(_http, "_#HttpResponse#reasonPhrase#isSet");
  var __HttpResponse_persistentConnection = dart.privateName(_http, "_#HttpResponse#persistentConnection");
  var __HttpResponse_persistentConnection_isSet = dart.privateName(_http, "_#HttpResponse#persistentConnection#isSet");
  _http.HttpResponse = class HttpResponse extends core.Object {
    get contentLength() {
      return this[contentLength$0];
    }
    set contentLength(value) {
      if (value == null) dart.nullFailed(I[415], 1041, 7, "contentLength");
      this[contentLength$0] = value;
    }
    get statusCode() {
      return this[statusCode];
    }
    set statusCode(value) {
      if (value == null) dart.nullFailed(I[415], 1053, 7, "statusCode");
      this[statusCode] = value;
    }
    get deadline() {
      return this[deadline];
    }
    set deadline(value) {
      this[deadline] = value;
    }
    get bufferOutput() {
      return this[bufferOutput];
    }
    set bufferOutput(value) {
      if (value == null) dart.nullFailed(I[415], 1085, 8, "bufferOutput");
      this[bufferOutput] = value;
    }
    get reasonPhrase() {
      let t$361826;
      return dart.test(this[__HttpResponse_reasonPhrase_isSet]) ? (t$361826 = this[__HttpResponse_reasonPhrase], t$361826) : dart.throw(new _internal.LateError.fieldNI("reasonPhrase"));
    }
    set reasonPhrase(reasonPhrase$35param) {
      if (reasonPhrase$35param == null) dart.nullFailed(I[415], 1062, 15, "reasonPhrase#param");
      this[__HttpResponse_reasonPhrase_isSet] = true;
      this[__HttpResponse_reasonPhrase] = reasonPhrase$35param;
    }
    get persistentConnection() {
      let t$361826;
      return dart.test(this[__HttpResponse_persistentConnection_isSet]) ? (t$361826 = this[__HttpResponse_persistentConnection], t$361826) : dart.throw(new _internal.LateError.fieldNI("persistentConnection"));
    }
    set persistentConnection(persistentConnection$35param) {
      if (persistentConnection$35param == null) dart.nullFailed(I[415], 1067, 13, "persistentConnection#param");
      this[__HttpResponse_persistentConnection_isSet] = true;
      this[__HttpResponse_persistentConnection] = persistentConnection$35param;
    }
  };
  (_http.HttpResponse.new = function() {
    this[contentLength$0] = -1;
    this[statusCode] = 200;
    this[__HttpResponse_reasonPhrase] = null;
    this[__HttpResponse_reasonPhrase_isSet] = false;
    this[__HttpResponse_persistentConnection] = null;
    this[__HttpResponse_persistentConnection_isSet] = false;
    this[deadline] = null;
    this[bufferOutput] = true;
    ;
  }).prototype = _http.HttpResponse.prototype;
  dart.addRtiResources(_http.HttpResponse, ["_http|HttpResponse", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setGetterSignature(_http.HttpResponse, () => dart.global.Object.setPrototypeOf({
    reasonPhrase: T$.String(),
    persistentConnection: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http.HttpResponse))));
  dart.setSetterSignature(_http.HttpResponse, () => dart.global.Object.setPrototypeOf({
    reasonPhrase: T$.String(),
    persistentConnection: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http.HttpResponse))));
  dart.setLibraryUri(_http.HttpResponse, I[416]);
  dart.setFieldSignature(_http.HttpResponse, () => dart.global.Object.setPrototypeOf({
    contentLength: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    statusCode: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__HttpResponse_reasonPhrase]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__HttpResponse_reasonPhrase_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__HttpResponse_persistentConnection]: {type: T$.boolN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [__HttpResponse_persistentConnection_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    deadline: {type: T$1.DurationN(), isConst: false, isFinal: false, libraryUri: I[11]},
    bufferOutput: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.HttpResponse))));
  var idleTimeout$ = dart.privateName(_http, "HttpClient.idleTimeout");
  var connectionTimeout = dart.privateName(_http, "HttpClient.connectionTimeout");
  var maxConnectionsPerHost = dart.privateName(_http, "HttpClient.maxConnectionsPerHost");
  var autoUncompress = dart.privateName(_http, "HttpClient.autoUncompress");
  var userAgent = dart.privateName(_http, "HttpClient.userAgent");
  _http.HttpClient = class HttpClient extends core.Object {
    get idleTimeout() {
      return this[idleTimeout$];
    }
    set idleTimeout(value) {
      if (value == null) dart.nullFailed(I[415], 1263, 12, "idleTimeout");
      this[idleTimeout$] = value;
    }
    get connectionTimeout() {
      return this[connectionTimeout];
    }
    set connectionTimeout(value) {
      this[connectionTimeout] = value;
    }
    get maxConnectionsPerHost() {
      return this[maxConnectionsPerHost];
    }
    set maxConnectionsPerHost(value) {
      this[maxConnectionsPerHost] = value;
    }
    get autoUncompress() {
      return this[autoUncompress];
    }
    set autoUncompress(value) {
      if (value == null) dart.nullFailed(I[415], 1309, 8, "autoUncompress");
      this[autoUncompress] = value;
    }
    get userAgent() {
      return this[userAgent];
    }
    set userAgent(value) {
      this[userAgent] = value;
    }
    static set enableTimelineLogging(value) {
      if (value == null) dart.nullFailed(I[415], 1238, 41, "value");
      let enabled = _internal.valueOfNonNullableParamWithDefault(T$.bool(), value, false);
      if (enabled != _http.HttpClient._enableTimelineLogging) {
        {
          developer.postEvent("HttpTimelineLoggingStateChange", new _js_helper.LinkedMap.from(["isolateId", developer.Service.getIsolateID(isolate.Isolate.current), "enabled", enabled]));
        }
      }
      _http.HttpClient._enableTimelineLogging = enabled;
    }
    static get enableTimelineLogging() {
      return _http.HttpClient._enableTimelineLogging;
    }
    static new(opts) {
      let context = opts && 'context' in opts ? opts.context : null;
      let overrides = _http.HttpOverrides.current;
      if (overrides == null) {
        return new _http._HttpClient.new(context);
      }
      return overrides.createHttpClient(context);
    }
    static ['_#new#tearOff'](opts) {
      let context = opts && 'context' in opts ? opts.context : null;
      return _http.HttpClient.new({context: context});
    }
    static findProxyFromEnvironment(url, opts) {
      if (url == null) dart.nullFailed(I[415], 1597, 46, "url");
      let environment = opts && 'environment' in opts ? opts.environment : null;
      let overrides = _http.HttpOverrides.current;
      if (overrides == null) {
        return _http._HttpClient._findProxyFromEnvironment(url, environment);
      }
      return overrides.findProxyFromEnvironment(url, environment);
    }
  };
  (_http.HttpClient[dart.mixinNew] = function() {
    this[idleTimeout$] = C[1229] || CT.C1229;
    this[connectionTimeout] = null;
    this[maxConnectionsPerHost] = null;
    this[autoUncompress] = true;
    this[userAgent] = null;
  }).prototype = _http.HttpClient.prototype;
  dart.addRtiResources(_http.HttpClient, ["_http|HttpClient"]);
  dart.setStaticMethodSignature(_http.HttpClient, () => ['new', 'findProxyFromEnvironment']);
  dart.setStaticGetterSignature(_http.HttpClient, () => ['enableTimelineLogging']);
  dart.setStaticSetterSignature(_http.HttpClient, () => ['enableTimelineLogging']);
  dart.setLibraryUri(_http.HttpClient, I[416]);
  dart.setFieldSignature(_http.HttpClient, () => dart.global.Object.setPrototypeOf({
    idleTimeout: {type: T$8.Duration(), isConst: false, isFinal: false, libraryUri: I[11]},
    connectionTimeout: {type: T$1.DurationN(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxConnectionsPerHost: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    autoUncompress: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    userAgent: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.HttpClient))));
  dart.setStaticFieldSignature(_http.HttpClient, () => ['defaultHttpPort', 'defaultHttpsPort', '_enableTimelineLogging']);
  dart.defineLazy(_http.HttpClient, {
    /*_http.HttpClient.defaultHttpPort*/get defaultHttpPort() {
      return 80;
    },
    /*_http.HttpClient.defaultHttpsPort*/get defaultHttpsPort() {
      return 443;
    },
    /*_http.HttpClient._enableTimelineLogging*/get _enableTimelineLogging() {
      return false;
    },
    set _enableTimelineLogging(value) {
      if (value == null) dart.nullFailed(I[415], 1257, 15, "_enableTimelineLogging");
    }
  }, false);
  var persistentConnection = dart.privateName(_http, "HttpClientRequest.persistentConnection");
  var followRedirects = dart.privateName(_http, "HttpClientRequest.followRedirects");
  var maxRedirects = dart.privateName(_http, "HttpClientRequest.maxRedirects");
  var contentLength$1 = dart.privateName(_http, "HttpClientRequest.contentLength");
  var bufferOutput$ = dart.privateName(_http, "HttpClientRequest.bufferOutput");
  _http.HttpClientRequest = class HttpClientRequest extends core.Object {
    get persistentConnection() {
      return this[persistentConnection];
    }
    set persistentConnection(value) {
      if (value == null) dart.nullFailed(I[415], 1718, 8, "persistentConnection");
      this[persistentConnection] = value;
    }
    get followRedirects() {
      return this[followRedirects];
    }
    set followRedirects(value) {
      if (value == null) dart.nullFailed(I[415], 1770, 8, "followRedirects");
      this[followRedirects] = value;
    }
    get maxRedirects() {
      return this[maxRedirects];
    }
    set maxRedirects(value) {
      if (value == null) dart.nullFailed(I[415], 1777, 7, "maxRedirects");
      this[maxRedirects] = value;
    }
    get contentLength() {
      return this[contentLength$1];
    }
    set contentLength(value) {
      if (value == null) dart.nullFailed(I[415], 1789, 7, "contentLength");
      this[contentLength$1] = value;
    }
    get bufferOutput() {
      return this[bufferOutput$];
    }
    set bufferOutput(value) {
      if (value == null) dart.nullFailed(I[415], 1797, 8, "bufferOutput");
      this[bufferOutput$] = value;
    }
  };
  (_http.HttpClientRequest.new = function() {
    this[persistentConnection] = true;
    this[followRedirects] = true;
    this[maxRedirects] = 5;
    this[contentLength$1] = -1;
    this[bufferOutput$] = true;
    ;
  }).prototype = _http.HttpClientRequest.prototype;
  dart.addRtiResources(_http.HttpClientRequest, ["_http|HttpClientRequest", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setLibraryUri(_http.HttpClientRequest, I[416]);
  dart.setFieldSignature(_http.HttpClientRequest, () => dart.global.Object.setPrototypeOf({
    persistentConnection: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    followRedirects: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxRedirects: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    contentLength: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    bufferOutput: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.HttpClientRequest))));
  _http.HttpClientResponse = class HttpClientResponse extends core.Object {};
  (_http.HttpClientResponse.new = function() {
    ;
  }).prototype = _http.HttpClientResponse.prototype;
  dart.addRtiResources(_http.HttpClientResponse, ["_http|HttpClientResponse", "async|Stream"]);
  dart.setLibraryUri(_http.HttpClientResponse, I[416]);
  _http.HttpClientResponseCompressionState = class HttpClientResponseCompressionState extends core._Enum {
    [_enumToString]() {
      return "HttpClientResponseCompressionState." + dart.str(this[_name$]);
    }
  };
  (_http.HttpClientResponseCompressionState.new = function(t$36$35index, t$36$35name) {
    if (t$36$35index == null) dart.nullFailed(I[415], 1974, 6, "#index");
    if (t$36$35name == null) dart.nullFailed(I[415], 1974, 6, "#name");
    dart.global.Object.getPrototypeOf(_http.HttpClientResponseCompressionState).new.call(this, t$36$35index, t$36$35name);
    ;
  }).prototype = _http.HttpClientResponseCompressionState.prototype;
  dart.addRtiResources(_http.HttpClientResponseCompressionState, ["_http|HttpClientResponseCompressionState"]);
  dart.setMethodSignature(_http.HttpClientResponseCompressionState, () => dart.global.Object.setPrototypeOf({[_enumToString]: T$.VoidToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http.HttpClientResponseCompressionState))));
  dart.setLibraryUri(_http.HttpClientResponseCompressionState, I[416]);
  dart.setStaticFieldSignature(_http.HttpClientResponseCompressionState, () => ['values', 'notCompressed', 'decompressed', 'compressed']);
  dart.defineLazy(_http.HttpClientResponseCompressionState, {
    /*_http.HttpClientResponseCompressionState.values*/get values() {
      return C[1230] || CT.C1230;
    },
    /*_http.HttpClientResponseCompressionState.notCompressed*/get notCompressed() {
      return C[1231] || CT.C1231;
    },
    /*_http.HttpClientResponseCompressionState.decompressed*/get decompressed() {
      return C[1232] || CT.C1232;
    },
    /*_http.HttpClientResponseCompressionState.compressed*/get compressed() {
      return C[1233] || CT.C1233;
    }
  }, false);
  _http.HttpClientCredentials = class HttpClientCredentials extends core.Object {};
  (_http.HttpClientCredentials.new = function() {
    ;
  }).prototype = _http.HttpClientCredentials.prototype;
  dart.addRtiResources(_http.HttpClientCredentials, ["_http|HttpClientCredentials"]);
  dart.setLibraryUri(_http.HttpClientCredentials, I[416]);
  _http.HttpClientBasicCredentials = class HttpClientBasicCredentials extends core.Object {
    static new(username, password) {
      if (username == null) dart.nullFailed(I[415], 2011, 45, "username");
      if (password == null) dart.nullFailed(I[415], 2011, 62, "password");
      return new _http._HttpClientBasicCredentials.new(username, password);
    }
    static ['_#new#tearOff'](username, password) {
      if (username == null) dart.nullFailed(I[415], 2011, 45, "username");
      if (password == null) dart.nullFailed(I[415], 2011, 62, "password");
      return _http.HttpClientBasicCredentials.new(username, password);
    }
  };
  (_http.HttpClientBasicCredentials[dart.mixinNew] = function() {
  }).prototype = _http.HttpClientBasicCredentials.prototype;
  dart.addRtiResources(_http.HttpClientBasicCredentials, ["_http|HttpClientBasicCredentials", "_http|HttpClientCredentials"]);
  dart.setStaticMethodSignature(_http.HttpClientBasicCredentials, () => ['new']);
  dart.setLibraryUri(_http.HttpClientBasicCredentials, I[416]);
  _http.HttpClientDigestCredentials = class HttpClientDigestCredentials extends core.Object {
    static new(username, password) {
      if (username == null) dart.nullFailed(I[415], 2021, 46, "username");
      if (password == null) dart.nullFailed(I[415], 2021, 63, "password");
      return new _http._HttpClientDigestCredentials.new(username, password);
    }
    static ['_#new#tearOff'](username, password) {
      if (username == null) dart.nullFailed(I[415], 2021, 46, "username");
      if (password == null) dart.nullFailed(I[415], 2021, 63, "password");
      return _http.HttpClientDigestCredentials.new(username, password);
    }
  };
  (_http.HttpClientDigestCredentials[dart.mixinNew] = function() {
  }).prototype = _http.HttpClientDigestCredentials.prototype;
  dart.addRtiResources(_http.HttpClientDigestCredentials, ["_http|HttpClientDigestCredentials", "_http|HttpClientCredentials"]);
  dart.setStaticMethodSignature(_http.HttpClientDigestCredentials, () => ['new']);
  dart.setLibraryUri(_http.HttpClientDigestCredentials, I[416]);
  _http.HttpConnectionInfo = class HttpConnectionInfo extends core.Object {};
  (_http.HttpConnectionInfo.new = function() {
    ;
  }).prototype = _http.HttpConnectionInfo.prototype;
  dart.addRtiResources(_http.HttpConnectionInfo, ["_http|HttpConnectionInfo"]);
  dart.setLibraryUri(_http.HttpConnectionInfo, I[416]);
  _http.RedirectInfo = class RedirectInfo extends core.Object {};
  (_http.RedirectInfo.new = function() {
    ;
  }).prototype = _http.RedirectInfo.prototype;
  dart.addRtiResources(_http.RedirectInfo, ["_http|RedirectInfo"]);
  dart.setLibraryUri(_http.RedirectInfo, I[416]);
  var message$21 = dart.privateName(_http, "HttpException.message");
  var uri$ = dart.privateName(_http, "HttpException.uri");
  _http.HttpException = class HttpException extends core.Object {
    get message() {
      return this[message$21];
    }
    set message(value) {
      super.message = value;
    }
    get uri() {
      return this[uri$];
    }
    set uri(value) {
      super.uri = value;
    }
    static ['_#new#tearOff'](message, opts) {
      if (message == null) dart.nullFailed(I[415], 2049, 28, "message");
      let uri = opts && 'uri' in opts ? opts.uri : null;
      return new _http.HttpException.new(message, {uri: uri});
    }
    toString() {
      let t$361828;
      let b = (t$361828 = new core.StringBuffer.new(), (() => {
        t$361828.write("HttpException: ");
        t$361828.write(this.message);
        return t$361828;
      })());
      let uri = this.uri;
      if (uri != null) {
        b.write(", uri = " + dart.str(uri));
      }
      return dart.toString(b);
    }
  };
  (_http.HttpException.new = function(message, opts) {
    if (message == null) dart.nullFailed(I[415], 2049, 28, "message");
    let uri = opts && 'uri' in opts ? opts.uri : null;
    this[message$21] = message;
    this[uri$] = uri;
    ;
  }).prototype = _http.HttpException.prototype;
  dart.addRtiResources(_http.HttpException, ["_http|HttpException", "io|IOException", "core|Exception"]);
  dart.setLibraryUri(_http.HttpException, I[416]);
  dart.setFieldSignature(_http.HttpException, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    uri: {type: T$2.UriN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.HttpException))));
  dart.defineExtensionMethods(_http.HttpException, ['toString']);
  var message$22 = dart.privateName(_http, "RedirectException.message");
  var redirects$ = dart.privateName(_http, "RedirectException.redirects");
  _http.RedirectException = class RedirectException extends core.Object {
    get message() {
      return this[message$22];
    }
    set message(value) {
      super.message = value;
    }
    get redirects() {
      return this[redirects$];
    }
    set redirects(value) {
      super.redirects = value;
    }
    static ['_#new#tearOff'](message, redirects) {
      if (message == null) dart.nullFailed(I[415], 2067, 32, "message");
      if (redirects == null) dart.nullFailed(I[415], 2067, 46, "redirects");
      return new _http.RedirectException.new(message, redirects);
    }
    toString() {
      return "RedirectException: " + dart.str(this.message);
    }
    get uri() {
      return dart.test(this.redirects[$isEmpty]) ? null : this.redirects[$last].location;
    }
  };
  (_http.RedirectException.new = function(message, redirects) {
    if (message == null) dart.nullFailed(I[415], 2067, 32, "message");
    if (redirects == null) dart.nullFailed(I[415], 2067, 46, "redirects");
    this[message$22] = message;
    this[redirects$] = redirects;
    ;
  }).prototype = _http.RedirectException.prototype;
  dart.addRtiResources(_http.RedirectException, ["_http|RedirectException", "_http|HttpException", "io|IOException", "core|Exception"]);
  dart.setGetterSignature(_http.RedirectException, () => dart.global.Object.setPrototypeOf({uri: T$2.UriN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http.RedirectException))));
  dart.setLibraryUri(_http.RedirectException, I[416]);
  dart.setFieldSignature(_http.RedirectException, () => dart.global.Object.setPrototypeOf({
    message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    redirects: {type: T$13.ListOfRedirectInfo(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.RedirectException))));
  dart.defineExtensionMethods(_http.RedirectException, ['toString']);
  _http._CryptoUtils = class _CryptoUtils extends core.Object {
    static getRandomBytes(count) {
      if (count == null) dart.nullFailed(I[417], 8, 39, "count");
      let result = _native_typed_data.NativeUint8List.new(count);
      for (let i = 0; i < dart.notNull(count); i = i + 1) {
        result[$_set](i, math.Random.secure().nextInt(255));
      }
      return result;
    }
    static bytesToHex(bytes) {
      if (bytes == null) dart.nullFailed(I[417], 16, 38, "bytes");
      let result = new core.StringBuffer.new();
      for (let part of bytes) {
        result.write((dart.notNull(part) < 16 ? "0" : "") + part[$toRadixString](16));
      }
      return dart.toString(result);
    }
    static ['_#new#tearOff']() {
      return new _http._CryptoUtils.new();
    }
  };
  (_http._CryptoUtils.new = function() {
    ;
  }).prototype = _http._CryptoUtils.prototype;
  dart.addRtiResources(_http._CryptoUtils, ["_http|_CryptoUtils"]);
  dart.setStaticMethodSignature(_http._CryptoUtils, () => ['getRandomBytes', 'bytesToHex']);
  dart.setLibraryUri(_http._CryptoUtils, I[416]);
  var _lengthInBytes = dart.privateName(_http, "_lengthInBytes");
  var _digestCalled = dart.privateName(_http, "_digestCalled");
  var _chunkSizeInWords$ = dart.privateName(_http, "_chunkSizeInWords");
  var _bigEndianWords$ = dart.privateName(_http, "_bigEndianWords");
  var _pendingData = dart.privateName(_http, "_pendingData");
  var _currentChunk = dart.privateName(_http, "_currentChunk");
  var _h = dart.privateName(_http, "_h");
  var _iterate = dart.privateName(_http, "_iterate");
  var _resultAsBytes = dart.privateName(_http, "_resultAsBytes");
  var _finalizeData = dart.privateName(_http, "_finalizeData");
  var _add32 = dart.privateName(_http, "_add32");
  var _roundUp = dart.privateName(_http, "_roundUp");
  var _rotl32 = dart.privateName(_http, "_rotl32");
  var _wordToBytes = dart.privateName(_http, "_wordToBytes");
  var _bytesToChunk = dart.privateName(_http, "_bytesToChunk");
  var _updateHash = dart.privateName(_http, "_updateHash");
  _http._HashBase = class _HashBase extends core.Object {
    add(data) {
      if (data == null) dart.nullFailed(I[417], 49, 22, "data");
      if (dart.test(this[_digestCalled])) {
        dart.throw(new core.StateError.new("Hash update method called after digest was retrieved"));
      }
      this[_lengthInBytes] = dart.notNull(this[_lengthInBytes]) + dart.notNull(data[$length]);
      this[_pendingData][$addAll](data);
      this[_iterate]();
    }
    close() {
      if (dart.test(this[_digestCalled])) {
        return this[_resultAsBytes]();
      }
      this[_digestCalled] = true;
      this[_finalizeData]();
      this[_iterate]();
      if (!dart.test(this[_pendingData][$isEmpty])) dart.assertFailed(null, I[417], 66, 12, "_pendingData.isEmpty");
      return this[_resultAsBytes]();
    }
    get blockSize() {
      return dart.notNull(this[_chunkSizeInWords$]) * 4;
    }
    [_add32](x, y) {
      if (x == null) dart.nullFailed(I[417], 79, 18, "x");
      if (y == null) dart.nullFailed(I[417], 79, 25, "y");
      return (dart.notNull(x) + dart.notNull(y) & 4294967295.0) >>> 0;
    }
    [_roundUp](val, n) {
      if (val == null) dart.nullFailed(I[417], 80, 20, "val");
      if (n == null) dart.nullFailed(I[417], 80, 29, "n");
      return (dart.notNull(val) + dart.notNull(n) - 1 & -dart.notNull(n)) >>> 0;
    }
    [_rotl32](val, shift) {
      if (val == null) dart.nullFailed(I[417], 83, 19, "val");
      if (shift == null) dart.nullFailed(I[417], 83, 28, "shift");
      let mod_shift = dart.notNull(shift) & 31;
      return (val[$leftShift](mod_shift) & 4294967295.0 | ((dart.notNull(val) & 4294967295.0) >>> 0)[$rightShift](32 - mod_shift)) >>> 0;
    }
    [_resultAsBytes]() {
      let result = G.JSArrayOfint().of([]);
      for (let i = 0; i < dart.notNull(this[_h][$length]); i = i + 1) {
        result[$addAll](this[_wordToBytes](this[_h][$_get](i)));
      }
      return result;
    }
    [_bytesToChunk](data, dataIndex) {
      if (data == null) dart.nullFailed(I[417], 99, 32, "data");
      if (dataIndex == null) dart.nullFailed(I[417], 99, 42, "dataIndex");
      if (!(dart.notNull(data[$length]) - dart.notNull(dataIndex) >= dart.notNull(this[_chunkSizeInWords$]) * 4)) dart.assertFailed(null, I[417], 100, 12, "(data.length - dataIndex) >= (_chunkSizeInWords * _BYTES_PER_WORD)");
      for (let wordIndex = 0; wordIndex < dart.notNull(this[_chunkSizeInWords$]); wordIndex = wordIndex + 1) {
        let w3 = dart.test(this[_bigEndianWords$]) ? data[$_get](dataIndex) : data[$_get](dart.notNull(dataIndex) + 3);
        let w2 = dart.test(this[_bigEndianWords$]) ? data[$_get](dart.notNull(dataIndex) + 1) : data[$_get](dart.notNull(dataIndex) + 2);
        let w1 = dart.test(this[_bigEndianWords$]) ? data[$_get](dart.notNull(dataIndex) + 2) : data[$_get](dart.notNull(dataIndex) + 1);
        let w0 = dart.test(this[_bigEndianWords$]) ? data[$_get](dart.notNull(dataIndex) + 3) : data[$_get](dataIndex);
        dataIndex = dart.notNull(dataIndex) + 4;
        let word = (dart.notNull(w3) & 255) << 24 >>> 0;
        word = (word | (dart.notNull(w2) & 255) >>> 0 << 16 >>> 0) >>> 0;
        word = (word | (dart.notNull(w1) & 255) >>> 0 << 8 >>> 0) >>> 0;
        word = (word | (dart.notNull(w0) & 255) >>> 0) >>> 0;
        this[_currentChunk][$_set](wordIndex, word);
      }
    }
    [_wordToBytes](word) {
      if (word == null) dart.nullFailed(I[417], 117, 30, "word");
      let bytes = G$.ListOfint().filled(4, 0);
      bytes[$_set](0, (word[$rightShift](dart.test(this[_bigEndianWords$]) ? 24 : 0) & 255) >>> 0);
      bytes[$_set](1, (word[$rightShift](dart.test(this[_bigEndianWords$]) ? 16 : 8) & 255) >>> 0);
      bytes[$_set](2, (word[$rightShift](dart.test(this[_bigEndianWords$]) ? 8 : 16) & 255) >>> 0);
      bytes[$_set](3, (word[$rightShift](dart.test(this[_bigEndianWords$]) ? 0 : 24) & 255) >>> 0);
      return bytes;
    }
    [_iterate]() {
      let len = this[_pendingData][$length];
      let chunkSizeInBytes = dart.notNull(this[_chunkSizeInWords$]) * 4;
      if (dart.notNull(len) >= chunkSizeInBytes) {
        let index = 0;
        for (; dart.notNull(len) - index >= chunkSizeInBytes; index = index + chunkSizeInBytes) {
          this[_bytesToChunk](this[_pendingData], index);
          this[_updateHash](this[_currentChunk]);
        }
        this[_pendingData] = this[_pendingData][$sublist](index, len);
      }
    }
    [_finalizeData]() {
      this[_pendingData][$add](128);
      let contentsLength = dart.notNull(this[_lengthInBytes]) + 9;
      let chunkSizeInBytes = dart.notNull(this[_chunkSizeInWords$]) * 4;
      let finalizedLength = this[_roundUp](contentsLength, chunkSizeInBytes);
      let zeroPadding = dart.notNull(finalizedLength) - contentsLength;
      for (let i = 0; i < zeroPadding; i = i + 1) {
        this[_pendingData][$add](0);
      }
      let lengthInBits = dart.notNull(this[_lengthInBytes]) * 8;
      if (!(lengthInBits < math.pow(2, 32))) dart.assertFailed(null, I[417], 153, 12, "lengthInBits < pow(2, 32)");
      if (dart.test(this[_bigEndianWords$])) {
        this[_pendingData][$addAll](this[_wordToBytes](0));
        this[_pendingData][$addAll](this[_wordToBytes]((lengthInBits & 4294967295.0) >>> 0));
      } else {
        this[_pendingData][$addAll](this[_wordToBytes]((lengthInBits & 4294967295.0) >>> 0));
        this[_pendingData][$addAll](this[_wordToBytes](0));
      }
    }
  };
  (_http._HashBase.new = function(_chunkSizeInWords, digestSizeInWords, _bigEndianWords) {
    if (_chunkSizeInWords == null) dart.nullFailed(I[417], 43, 18, "_chunkSizeInWords");
    if (digestSizeInWords == null) dart.nullFailed(I[417], 43, 41, "digestSizeInWords");
    if (_bigEndianWords == null) dart.nullFailed(I[417], 43, 65, "_bigEndianWords");
    this[_lengthInBytes] = 0;
    this[_digestCalled] = false;
    this[_chunkSizeInWords$] = _chunkSizeInWords;
    this[_bigEndianWords$] = _bigEndianWords;
    this[_pendingData] = G.JSArrayOfint().of([]);
    this[_currentChunk] = _native_typed_data.NativeUint32List.new(_chunkSizeInWords);
    this[_h] = _native_typed_data.NativeUint32List.new(digestSizeInWords);
    ;
  }).prototype = _http._HashBase.prototype;
  dart.addRtiResources(_http._HashBase, ["_http|_HashBase"]);
  dart.setMethodSignature(_http._HashBase, () => dart.global.Object.setPrototypeOf({
    add: T$.ListOfintTovoid(),
    close: T$13.VoidToListOfint(),
    [_add32]: T$.intAndintToint(),
    [_roundUp]: T$.intAndintToint(),
    [_rotl32]: T$.intAndintToint(),
    [_resultAsBytes]: T$13.VoidToListOfint(),
    [_bytesToChunk]: T$13.ListOfintAndintTovoid(),
    [_wordToBytes]: T$13.intToListOfint(),
    [_iterate]: T$.VoidTovoid(),
    [_finalizeData]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HashBase))));
  dart.setGetterSignature(_http._HashBase, () => dart.global.Object.setPrototypeOf({blockSize: T$.int()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HashBase))));
  dart.setLibraryUri(_http._HashBase, I[416]);
  dart.setFieldSignature(_http._HashBase, () => dart.global.Object.setPrototypeOf({
    [_chunkSizeInWords$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_bigEndianWords$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_lengthInBytes]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pendingData]: {type: T$.ListOfint(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentChunk]: {type: T$0.Uint32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_h]: {type: T$0.Uint32List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_digestCalled]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HashBase))));
  _http._MD5 = class _MD5 extends _http._HashBase {
    static ['_#new#tearOff']() {
      return new _http._MD5.new();
    }
    [_updateHash](m) {
      if (m == null) dart.nullFailed(I[417], 196, 31, "m");
      if (!(m[$length] === 16)) dart.assertFailed(null, I[417], 197, 12, "m.length == 16");
      let a = this[_h][$_get](0);
      let b = this[_h][$_get](1);
      let c = this[_h][$_get](2);
      let d = this[_h][$_get](3);
      let t0 = null;
      let t1 = null;
      for (let i = 0; i < 64; i = i + 1) {
        if (i < 16) {
          t0 = (dart.notNull(b) & dart.notNull(c) | (~dart.notNull(b) & 4294967295.0 & dart.notNull(d)) >>> 0) >>> 0;
          t1 = i;
        } else if (i < 32) {
          t0 = (dart.notNull(d) & dart.notNull(b) | (~dart.notNull(d) & 4294967295.0 & dart.notNull(c)) >>> 0) >>> 0;
          t1 = (5 * i + 1)[$modulo](16);
        } else if (i < 48) {
          t0 = (dart.notNull(b) ^ dart.notNull(c) ^ dart.notNull(d)) >>> 0;
          t1 = (3 * i + 5)[$modulo](16);
        } else {
          t0 = (dart.notNull(c) ^ (dart.notNull(b) | (~dart.notNull(d) & 4294967295.0) >>> 0) >>> 0) >>> 0;
          t1 = (7 * i)[$modulo](16);
        }
        let temp = d;
        d = c;
        c = b;
        b = this[_add32](b, this[_rotl32](this[_add32](this[_add32](a, t0), this[_add32](_http._MD5._k[$_get](i), m[$_get](t1))), _http._MD5._r[$_get](i)));
        a = temp;
      }
      this[_h][$_set](0, this[_add32](a, this[_h][$_get](0)));
      this[_h][$_set](1, this[_add32](b, this[_h][$_get](1)));
      this[_h][$_set](2, this[_add32](c, this[_h][$_get](2)));
      this[_h][$_set](3, this[_add32](d, this[_h][$_get](3)));
    }
  };
  (_http._MD5.new = function() {
    dart.global.Object.getPrototypeOf(_http._MD5).new.call(this, 16, 4, false);
    this[_h][$_set](0, 1732584193);
    this[_h][$_set](1, 4023233417);
    this[_h][$_set](2, 2562383102);
    this[_h][$_set](3, 271733878);
  }).prototype = _http._MD5.prototype;
  dart.addRtiResources(_http._MD5, ["_http|_MD5"]);
  dart.setMethodSignature(_http._MD5, () => dart.global.Object.setPrototypeOf({[_updateHash]: T$13.Uint32ListTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http._MD5))));
  dart.setLibraryUri(_http._MD5, I[416]);
  dart.setStaticFieldSignature(_http._MD5, () => ['_k', '_r']);
  dart.defineLazy(_http._MD5, {
    /*_http._MD5._k*/get _k() {
      return C[1234] || CT.C1234;
    },
    /*_http._MD5._r*/get _r() {
      return C[1235] || CT.C1235;
    }
  }, false);
  var _w$ = dart.privateName(_http, "_w");
  _http._SHA1 = class _SHA1 extends _http._HashBase {
    static ['_#new#tearOff']() {
      return new _http._SHA1.new();
    }
    [_updateHash](m) {
      if (m == null) dart.nullFailed(I[417], 254, 31, "m");
      if (!(m[$length] === 16)) dart.assertFailed(null, I[417], 255, 12, "m.length == 16");
      let a = this[_h][$_get](0);
      let b = this[_h][$_get](1);
      let c = this[_h][$_get](2);
      let d = this[_h][$_get](3);
      let e = this[_h][$_get](4);
      for (let i = 0; i < 80; i = i + 1) {
        if (i < 16) {
          this[_w$][$_set](i, m[$_get](i));
        } else {
          let n = (dart.notNull(this[_w$][$_get](i - 3)) ^ dart.notNull(this[_w$][$_get](i - 8)) ^ dart.notNull(this[_w$][$_get](i - 14)) ^ dart.notNull(this[_w$][$_get](i - 16))) >>> 0;
          this[_w$][$_set](i, this[_rotl32](n, 1));
        }
        let t = this[_add32](this[_add32](this[_rotl32](a, 5), e), this[_w$][$_get](i));
        if (i < 20) {
          t = this[_add32](this[_add32](t, (dart.notNull(b) & dart.notNull(c) | (~dart.notNull(b) & dart.notNull(d)) >>> 0) >>> 0), 1518500249);
        } else if (i < 40) {
          t = this[_add32](this[_add32](t, (dart.notNull(b) ^ dart.notNull(c) ^ dart.notNull(d)) >>> 0), 1859775393);
        } else if (i < 60) {
          t = this[_add32](this[_add32](t, (dart.notNull(b) & dart.notNull(c) | (dart.notNull(b) & dart.notNull(d)) >>> 0 | (dart.notNull(c) & dart.notNull(d)) >>> 0) >>> 0), 2400959708);
        } else {
          t = this[_add32](this[_add32](t, (dart.notNull(b) ^ dart.notNull(c) ^ dart.notNull(d)) >>> 0), 3395469782);
        }
        e = d;
        d = c;
        c = this[_rotl32](b, 30);
        b = a;
        a = (dart.notNull(t) & 4294967295.0) >>> 0;
      }
      this[_h][$_set](0, this[_add32](a, this[_h][$_get](0)));
      this[_h][$_set](1, this[_add32](b, this[_h][$_get](1)));
      this[_h][$_set](2, this[_add32](c, this[_h][$_get](2)));
      this[_h][$_set](3, this[_add32](d, this[_h][$_get](3)));
      this[_h][$_set](4, this[_add32](e, this[_h][$_get](4)));
    }
  };
  (_http._SHA1.new = function() {
    this[_w$] = G$.ListOfint().filled(80, 0);
    dart.global.Object.getPrototypeOf(_http._SHA1).new.call(this, 16, 5, true);
    this[_h][$_set](0, 1732584193);
    this[_h][$_set](1, 4023233417);
    this[_h][$_set](2, 2562383102);
    this[_h][$_set](3, 271733878);
    this[_h][$_set](4, 3285377520);
  }).prototype = _http._SHA1.prototype;
  dart.addRtiResources(_http._SHA1, ["_http|_SHA1"]);
  dart.setMethodSignature(_http._SHA1, () => dart.global.Object.setPrototypeOf({[_updateHash]: T$13.Uint32ListTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http._SHA1))));
  dart.setLibraryUri(_http._SHA1, I[416]);
  dart.setFieldSignature(_http._SHA1, () => dart.global.Object.setPrototypeOf({[_w$]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._SHA1))));
  _http.HttpDate = class HttpDate extends core.Object {
    static format(date) {
      let t$361828;
      if (date == null) dart.nullFailed(I[418], 36, 33, "date");
      let wkday = C[1236] || CT.C1236;
      let month = C[1237] || CT.C1237;
      let d = date.toUtc();
      let sb = (t$361828 = new core.StringBuffer.new(), (() => {
        t$361828.write(wkday[$_get](dart.notNull(d.weekday) - 1));
        t$361828.write(", ");
        t$361828.write(dart.notNull(d.day) <= 9 ? "0" : "");
        t$361828.write(dart.toString(d.day));
        t$361828.write(" ");
        t$361828.write(month[$_get](dart.notNull(d.month) - 1));
        t$361828.write(" ");
        t$361828.write(dart.toString(d.year));
        t$361828.write(dart.notNull(d.hour) <= 9 ? " 0" : " ");
        t$361828.write(dart.toString(d.hour));
        t$361828.write(dart.notNull(d.minute) <= 9 ? ":0" : ":");
        t$361828.write(dart.toString(d.minute));
        t$361828.write(dart.notNull(d.second) <= 9 ? ":0" : ":");
        t$361828.write(dart.toString(d.second));
        t$361828.write(" GMT");
        return t$361828;
      })());
      return dart.toString(sb);
    }
    static parse(date) {
      if (date == null) dart.nullFailed(I[418], 85, 32, "date");
      let SP = 32;
      let wkdays = C[1236] || CT.C1236;
      let weekdays = C[1238] || CT.C1238;
      let months = C[1237] || CT.C1237;
      let formatRfc1123 = 0;
      let formatRfc850 = 1;
      let formatAsctime = 2;
      let index = 0;
      let tmp = null;
      function expect(s) {
        if (s == null) dart.nullFailed(I[418], 119, 24, "s");
        if (date.length - index < s.length) {
          dart.throw(new _http.HttpException.new("Invalid HTTP date " + dart.str(date)));
        }
        let tmp = date[$substring](index, index + s.length);
        if (tmp !== s) {
          dart.throw(new _http.HttpException.new("Invalid HTTP date " + dart.str(date)));
        }
        index = index + s.length;
      }
      dart.fn(expect, T$.StringTovoid());
      function expectWeekday() {
        let weekday = null;
        let pos = date[$indexOf](",", index);
        if (pos === -1) {
          let pos = date[$indexOf](" ", index);
          if (pos === -1) dart.throw(new _http.HttpException.new("Invalid HTTP date " + dart.str(date)));
          tmp = date[$substring](index, pos);
          index = pos + 1;
          weekday = wkdays[$indexOf](tmp);
          if (weekday !== -1) {
            return formatAsctime;
          }
        } else {
          tmp = date[$substring](index, pos);
          index = pos + 1;
          weekday = wkdays[$indexOf](tmp);
          if (weekday !== -1) {
            return formatRfc1123;
          }
          weekday = weekdays[$indexOf](tmp);
          if (weekday !== -1) {
            return formatRfc850;
          }
        }
        dart.throw(new _http.HttpException.new("Invalid HTTP date " + dart.str(date)));
      }
      dart.fn(expectWeekday, T$.VoidToint());
      function expectMonth(separator) {
        if (separator == null) dart.nullFailed(I[418], 158, 28, "separator");
        let pos = date[$indexOf](separator, index);
        if (pos - index !== 3) dart.throw(new _http.HttpException.new("Invalid HTTP date " + dart.str(date)));
        tmp = date[$substring](index, pos);
        index = pos + 1;
        let month = months[$indexOf](tmp);
        if (month !== -1) return month;
        dart.throw(new _http.HttpException.new("Invalid HTTP date " + dart.str(date)));
      }
      dart.fn(expectMonth, T$2.StringToint());
      function expectNum(separator) {
        if (separator == null) dart.nullFailed(I[418], 168, 26, "separator");
        let pos = null;
        if (separator[$isNotEmpty]) {
          pos = date[$indexOf](separator, index);
        } else {
          pos = date.length;
        }
        let tmp = date[$substring](index, pos);
        index = dart.notNull(pos) + separator.length;
        try {
          let value = core.int.parse(tmp);
          return value;
        } catch (t$36$35e) {
          let t$36$35ex = dart.getThrown(t$36$35e);
          if (T$8.FormatException()[_is](t$36$35ex)) {
            dart.throw(new _http.HttpException.new("Invalid HTTP date " + dart.str(date)));
          } else
            throw t$36$35e;
        }
      }
      dart.fn(expectNum, T$2.StringToint());
      function expectEnd() {
        if (index !== date.length) {
          dart.throw(new _http.HttpException.new("Invalid HTTP date " + dart.str(date)));
        }
      }
      dart.fn(expectEnd, T$.VoidTovoid());
      let format = expectWeekday();
      let year = null;
      let month = null;
      let day = null;
      let hours = null;
      let minutes = null;
      let seconds = null;
      if (format === formatAsctime) {
        month = expectMonth(" ");
        if (date[$codeUnitAt](index) === SP) index = index + 1;
        day = expectNum(" ");
        hours = expectNum(":");
        minutes = expectNum(":");
        seconds = expectNum(" ");
        year = expectNum("");
      } else {
        expect(" ");
        day = expectNum(format === formatRfc1123 ? " " : "-");
        month = expectMonth(format === formatRfc1123 ? " " : "-");
        year = expectNum(" ");
        hours = expectNum(":");
        minutes = expectNum(":");
        seconds = expectNum(" ");
        expect("GMT");
      }
      expectEnd();
      return new core.DateTime.utc(year, dart.notNull(month) + 1, day, hours, minutes, seconds, 0);
    }
    static _parseCookieDate(date) {
      if (date == null) dart.nullFailed(I[418], 221, 43, "date");
      let monthsLowerCase = C[1239] || CT.C1239;
      let position = 0;
      function error() {
        dart.throw(new _http.HttpException.new("Invalid cookie date " + dart.str(date)));
      }
      dart.fn(error, T$2.VoidToNever());
      function isEnd() {
        return position === date.length;
      }
      dart.fn(isEnd, T$.VoidTobool());
      function isDelimiter(s) {
        if (s == null) dart.nullFailed(I[418], 245, 29, "s");
        let char = s[$codeUnitAt](0);
        if (char === 9) return true;
        if (char >= 32 && char <= 47) return true;
        if (char >= 59 && char <= 64) return true;
        if (char >= 91 && char <= 96) return true;
        if (char >= 123 && char <= 126) return true;
        return false;
      }
      dart.fn(isDelimiter, T$.StringTobool());
      function isNonDelimiter(s) {
        if (s == null) dart.nullFailed(I[418], 255, 32, "s");
        let char = s[$codeUnitAt](0);
        if (char >= 0 && char <= 8) return true;
        if (char >= 10 && char <= 31) return true;
        if (char >= 48 && char <= 57) return true;
        if (char === 58) return true;
        if (char >= 65 && char <= 90) return true;
        if (char >= 97 && char <= 122) return true;
        if (char >= 127 && char <= 255) return true;
        return false;
      }
      dart.fn(isNonDelimiter, T$.StringTobool());
      function isDigit(s) {
        if (s == null) dart.nullFailed(I[418], 267, 25, "s");
        let char = s[$codeUnitAt](0);
        if (char > 47 && char < 58) return true;
        return false;
      }
      dart.fn(isDigit, T$.StringTobool());
      function getMonth(month) {
        if (month == null) dart.nullFailed(I[418], 273, 25, "month");
        if (month.length < 3) return -1;
        return monthsLowerCase[$indexOf](month[$substring](0, 3));
      }
      dart.fn(getMonth, T$2.StringToint());
      function toInt(s) {
        if (s == null) dart.nullFailed(I[418], 278, 22, "s");
        let index = 0;
        for (; index < s.length && dart.test(isDigit(s[$_get](index))); index = index + 1)
          ;
        return core.int.parse(s[$substring](0, index));
      }
      dart.fn(toInt, T$2.StringToint());
      let tokens = G.JSArrayOfString().of([]);
      while (!dart.test(isEnd())) {
        while (!dart.test(isEnd()) && dart.test(isDelimiter(date[$_get](position))))
          position = position + 1;
        let start = position;
        while (!dart.test(isEnd()) && dart.test(isNonDelimiter(date[$_get](position))))
          position = position + 1;
        tokens[$add](date[$substring](start, position)[$toLowerCase]());
        while (!dart.test(isEnd()) && dart.test(isDelimiter(date[$_get](position))))
          position = position + 1;
      }
      let timeStr = null;
      let dayOfMonthStr = null;
      let monthStr = null;
      let yearStr = null;
      for (let token of tokens) {
        if (token[$isEmpty]) continue;
        if (timeStr == null && token.length >= 5 && dart.test(isDigit(token[$_get](0))) && (token[$_get](1) === ":" || dart.test(isDigit(token[$_get](1))) && token[$_get](2) === ":")) {
          timeStr = token;
        } else if (dayOfMonthStr == null && dart.test(isDigit(token[$_get](0)))) {
          dayOfMonthStr = token;
        } else if (monthStr == null && dart.notNull(getMonth(token)) >= 0) {
          monthStr = token;
        } else if (yearStr == null && token.length >= 2 && dart.test(isDigit(token[$_get](0))) && dart.test(isDigit(token[$_get](1)))) {
          yearStr = token;
        }
      }
      if (timeStr == null || dayOfMonthStr == null || monthStr == null || yearStr == null) {
        error();
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      let year = toInt(yearStr);
      if (dart.notNull(year) >= 70 && dart.notNull(year) <= 99)
        year = dart.notNull(year) + 1900;
      else if (dart.notNull(year) >= 0 && dart.notNull(year) <= 69) year = dart.notNull(year) + 2000;
      if (dart.notNull(year) < 1601) {
        error();
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      let dayOfMonth = toInt(dayOfMonthStr);
      if (dart.notNull(dayOfMonth) < 1 || dart.notNull(dayOfMonth) > 31) {
        error();
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      let month = dart.notNull(getMonth(monthStr)) + 1;
      let timeList = timeStr[$split](":");
      if (timeList[$length] !== 3) {
        error();
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      let hour = toInt(timeList[$_get](0));
      let minute = toInt(timeList[$_get](1));
      let second = toInt(timeList[$_get](2));
      if (dart.notNull(hour) > 23) {
        error();
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      if (dart.notNull(minute) > 59) {
        error();
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      if (dart.notNull(second) > 59) {
        error();
        dart.throw(new _internal.ReachabilityError.new("`null` encountered as the result from expression with type `Never`."));
      }
      return new core.DateTime.utc(year, month, dayOfMonth, hour, minute, second, 0);
    }
    static ['_#new#tearOff']() {
      return new _http.HttpDate.new();
    }
  };
  (_http.HttpDate.new = function() {
    ;
  }).prototype = _http.HttpDate.prototype;
  dart.addRtiResources(_http.HttpDate, ["_http|HttpDate"]);
  dart.setStaticMethodSignature(_http.HttpDate, () => ['format', 'parse', '_parseCookieDate']);
  dart.setLibraryUri(_http.HttpDate, I[416]);
  var protocolVersion$ = dart.privateName(_http, "_HttpHeaders.protocolVersion");
  var _originalHeaderNames = dart.privateName(_http, "_originalHeaderNames");
  var _mutable = dart.privateName(_http, "_mutable");
  var _noFoldingHeaders = dart.privateName(_http, "_noFoldingHeaders");
  var _contentLength = dart.privateName(_http, "_contentLength");
  var _persistentConnection = dart.privateName(_http, "_persistentConnection");
  var _chunkedTransferEncoding = dart.privateName(_http, "_chunkedTransferEncoding");
  var _host$0 = dart.privateName(_http, "_host");
  var _port = dart.privateName(_http, "_port");
  var _headers = dart.privateName(_http, "_headers");
  var _defaultPortForScheme = dart.privateName(_http, "_defaultPortForScheme");
  var _checkMutable = dart.privateName(_http, "_checkMutable");
  var _addAll$ = dart.privateName(_http, "_addAll");
  var _add$2 = dart.privateName(_http, "_add");
  var _valueToString = dart.privateName(_http, "_valueToString");
  var _originalHeaderName = dart.privateName(_http, "_originalHeaderName");
  var _set$ = dart.privateName(_http, "_set");
  var _addValue = dart.privateName(_http, "_addValue");
  var _updateHostHeader = dart.privateName(_http, "_updateHostHeader");
  var _addDate = dart.privateName(_http, "_addDate");
  var _addHost = dart.privateName(_http, "_addHost");
  var _addExpires = dart.privateName(_http, "_addExpires");
  var _addConnection = dart.privateName(_http, "_addConnection");
  var _addContentType = dart.privateName(_http, "_addContentType");
  var _addContentLength = dart.privateName(_http, "_addContentLength");
  var _addTransferEncoding = dart.privateName(_http, "_addTransferEncoding");
  var _addIfModifiedSince = dart.privateName(_http, "_addIfModifiedSince");
  var _foldHeader = dart.privateName(_http, "_foldHeader");
  var _finalize = dart.privateName(_http, "_finalize");
  var _build = dart.privateName(_http, "_build");
  var _parseCookies = dart.privateName(_http, "_parseCookies");
  _http._HttpHeaders = class _HttpHeaders extends core.Object {
    get protocolVersion() {
      return this[protocolVersion$];
    }
    set protocolVersion(value) {
      super.protocolVersion = value;
    }
    static ['_#new#tearOff'](protocolVersion, opts) {
      if (protocolVersion == null) dart.nullFailed(I[419], 26, 21, "protocolVersion");
      let defaultPortForScheme = opts && 'defaultPortForScheme' in opts ? opts.defaultPortForScheme : 80;
      if (defaultPortForScheme == null) dart.nullFailed(I[419], 27, 12, "defaultPortForScheme");
      let initialHeaders = opts && 'initialHeaders' in opts ? opts.initialHeaders : null;
      return new _http._HttpHeaders.new(protocolVersion, {defaultPortForScheme: defaultPortForScheme, initialHeaders: initialHeaders});
    }
    _get(name) {
      if (name == null) dart.nullFailed(I[419], 45, 36, "name");
      return this[_headers][$_get](_http._HttpHeaders._validateField(name));
    }
    value(name) {
      if (name == null) dart.nullFailed(I[419], 47, 24, "name");
      name = _http._HttpHeaders._validateField(name);
      let values = this[_headers][$_get](name);
      if (values == null) return null;
      if (!dart.test(values[$isNotEmpty])) dart.assertFailed(null, I[419], 51, 12, "values.isNotEmpty");
      if (dart.notNull(values[$length]) > 1) {
        dart.throw(new _http.HttpException.new("More than one value for header " + dart.str(name)));
      }
      return values[$_get](0);
    }
    add(name, value, opts) {
      let t$361830, t$361830$;
      if (name == null) dart.nullFailed(I[419], 58, 19, "name");
      if (value == null) dart.nullFailed(I[419], 58, 25, "value");
      let preserveHeaderCase = opts && 'preserveHeaderCase' in opts ? opts.preserveHeaderCase : false;
      if (preserveHeaderCase == null) dart.nullFailed(I[419], 58, 38, "preserveHeaderCase");
      this[_checkMutable]();
      let lowercaseName = _http._HttpHeaders._validateField(name);
      if (dart.test(preserveHeaderCase) && name != lowercaseName) {
        (t$361830 = this[_originalHeaderNames], t$361830 == null ? this[_originalHeaderNames] = new (G.IdentityMapOfString$String()).new() : t$361830)[$_set](lowercaseName, name);
      } else {
        t$361830$ = this[_originalHeaderNames];
        t$361830$ == null ? null : t$361830$[$remove](lowercaseName);
      }
      this[_addAll$](lowercaseName, value);
    }
    [_addAll$](name, value) {
      if (name == null) dart.nullFailed(I[419], 70, 23, "name");
      if (T$.Iterable()[_is](value)) {
        for (let v of value) {
          this[_add$2](name, _http._HttpHeaders._validateValue(T$.Object()[_as](v)));
        }
      } else {
        this[_add$2](name, _http._HttpHeaders._validateValue(T$.Object()[_as](value)));
      }
    }
    set(name, value, opts) {
      let t$361830, t$361830$;
      if (name == null) dart.nullFailed(I[419], 80, 19, "name");
      if (value == null) dart.nullFailed(I[419], 80, 32, "value");
      let preserveHeaderCase = opts && 'preserveHeaderCase' in opts ? opts.preserveHeaderCase : false;
      if (preserveHeaderCase == null) dart.nullFailed(I[419], 80, 45, "preserveHeaderCase");
      this[_checkMutable]();
      let lowercaseName = _http._HttpHeaders._validateField(name);
      this[_headers][$remove](lowercaseName);
      t$361830 = this[_originalHeaderNames];
      t$361830 == null ? null : t$361830[$remove](lowercaseName);
      if (lowercaseName === "content-length") {
        this[_contentLength] = -1;
      }
      if (lowercaseName === "transfer-encoding") {
        this[_chunkedTransferEncoding] = false;
      }
      if (dart.test(preserveHeaderCase) && name != lowercaseName) {
        (t$361830$ = this[_originalHeaderNames], t$361830$ == null ? this[_originalHeaderNames] = new (G.IdentityMapOfString$String()).new() : t$361830$)[$_set](lowercaseName, name);
      }
      this[_addAll$](lowercaseName, value);
    }
    remove(name, value) {
      let t$361830;
      if (name == null) dart.nullFailed(I[419], 97, 22, "name");
      if (value == null) dart.nullFailed(I[419], 97, 35, "value");
      this[_checkMutable]();
      name = _http._HttpHeaders._validateField(name);
      value = _http._HttpHeaders._validateValue(value);
      let values = this[_headers][$_get](name);
      if (values != null) {
        values[$remove](this[_valueToString](value));
        if (dart.test(values[$isEmpty])) {
          this[_headers][$remove](name);
          t$361830 = this[_originalHeaderNames];
          t$361830 == null ? null : t$361830[$remove](name);
        }
      }
      if (name === "transfer-encoding" && dart.equals(value, "chunked")) {
        this[_chunkedTransferEncoding] = false;
      }
    }
    removeAll(name) {
      let t$361830;
      if (name == null) dart.nullFailed(I[419], 114, 25, "name");
      this[_checkMutable]();
      name = _http._HttpHeaders._validateField(name);
      this[_headers][$remove](name);
      t$361830 = this[_originalHeaderNames];
      t$361830 == null ? null : t$361830[$remove](name);
    }
    forEach(action) {
      if (action == null) dart.nullFailed(I[419], 121, 64, "action");
      this[_headers][$forEach](dart.fn((name, values) => {
        if (name == null) dart.nullFailed(I[419], 122, 30, "name");
        if (values == null) dart.nullFailed(I[419], 122, 49, "values");
        let originalName = this[_originalHeaderName](name);
        action(originalName, values);
      }, T$10.StringAndListOfStringTovoid()));
    }
    noFolding(name) {
      let t$361830;
      if (name == null) dart.nullFailed(I[419], 128, 25, "name");
      name = _http._HttpHeaders._validateField(name);
      (t$361830 = this[_noFoldingHeaders], t$361830 == null ? this[_noFoldingHeaders] = G.JSArrayOfString().of([]) : t$361830)[$add](name);
    }
    get persistentConnection() {
      return this[_persistentConnection];
    }
    set persistentConnection(persistentConnection) {
      if (persistentConnection == null) dart.nullFailed(I[419], 135, 38, "persistentConnection");
      this[_checkMutable]();
      if (persistentConnection == this[_persistentConnection]) return;
      let originalName = this[_originalHeaderName]("connection");
      if (dart.test(persistentConnection)) {
        if (this.protocolVersion === "1.1") {
          this.remove("connection", "close");
        } else {
          if (dart.notNull(this[_contentLength]) < 0) {
            dart.throw(new _http.HttpException.new("Trying to set 'Connection: Keep-Alive' on HTTP 1.0 headers with no ContentLength"));
          }
          this.add(originalName, "keep-alive", {preserveHeaderCase: true});
        }
      } else {
        if (this.protocolVersion === "1.1") {
          this.add(originalName, "close", {preserveHeaderCase: true});
        } else {
          this.remove("connection", "keep-alive");
        }
      }
      this[_persistentConnection] = persistentConnection;
    }
    get contentLength() {
      return this[_contentLength];
    }
    set contentLength(contentLength) {
      if (contentLength == null) dart.nullFailed(I[419], 162, 30, "contentLength");
      this[_checkMutable]();
      if (this.protocolVersion === "1.0" && dart.test(this.persistentConnection) && contentLength === -1) {
        dart.throw(new _http.HttpException.new("Trying to clear ContentLength on HTTP 1.0 headers with 'Connection: Keep-Alive' set"));
      }
      if (this[_contentLength] == contentLength) return;
      this[_contentLength] = contentLength;
      if (dart.notNull(this[_contentLength]) >= 0) {
        if (dart.test(this.chunkedTransferEncoding)) this.chunkedTransferEncoding = false;
        this[_set$]("content-length", dart.toString(contentLength));
      } else {
        this[_headers][$remove]("content-length");
        if (this.protocolVersion === "1.1") {
          this.chunkedTransferEncoding = true;
        }
      }
    }
    get chunkedTransferEncoding() {
      return this[_chunkedTransferEncoding];
    }
    set chunkedTransferEncoding(chunkedTransferEncoding) {
      if (chunkedTransferEncoding == null) dart.nullFailed(I[419], 186, 41, "chunkedTransferEncoding");
      this[_checkMutable]();
      if (dart.test(chunkedTransferEncoding) && this.protocolVersion === "1.0") {
        dart.throw(new _http.HttpException.new("Trying to set 'Transfer-Encoding: Chunked' on HTTP 1.0 headers"));
      }
      if (chunkedTransferEncoding == this[_chunkedTransferEncoding]) return;
      if (dart.test(chunkedTransferEncoding)) {
        let values = this[_headers][$_get]("transfer-encoding");
        if (values == null || !dart.test(values[$contains]("chunked"))) {
          this[_addValue]("transfer-encoding", "chunked");
        }
        this.contentLength = -1;
      } else {
        this.remove("transfer-encoding", "chunked");
      }
      this[_chunkedTransferEncoding] = chunkedTransferEncoding;
    }
    get host() {
      return this[_host$0];
    }
    set host(host) {
      this[_checkMutable]();
      this[_host$0] = host;
      this[_updateHostHeader]();
    }
    get port() {
      return this[_port];
    }
    set port(port) {
      this[_checkMutable]();
      this[_port] = port;
      this[_updateHostHeader]();
    }
    get ifModifiedSince() {
      let values = this[_headers][$_get]("if-modified-since");
      if (values != null) {
        if (!dart.test(values[$isNotEmpty])) dart.assertFailed(null, I[419], 226, 14, "values.isNotEmpty");
        try {
          return _http.HttpDate.parse(values[$_get](0));
        } catch (t$36$35e) {
          let t$36$35ex = dart.getThrown(t$36$35e);
          if (T$.Exception()[_is](t$36$35ex)) {
            return null;
          } else
            throw t$36$35e;
        }
      }
      return null;
    }
    set ifModifiedSince(ifModifiedSince) {
      this[_checkMutable]();
      if (ifModifiedSince == null) {
        this[_headers][$remove]("if-modified-since");
      } else {
        let formatted = _http.HttpDate.format(ifModifiedSince.toUtc());
        this[_set$]("if-modified-since", formatted);
      }
    }
    get date() {
      let values = this[_headers][$_get]("date");
      if (values != null) {
        if (!dart.test(values[$isNotEmpty])) dart.assertFailed(null, I[419], 250, 14, "values.isNotEmpty");
        try {
          return _http.HttpDate.parse(values[$_get](0));
        } catch (t$36$35e) {
          let t$36$35ex = dart.getThrown(t$36$35e);
          if (T$.Exception()[_is](t$36$35ex)) {
            return null;
          } else
            throw t$36$35e;
        }
      }
      return null;
    }
    set date(date) {
      this[_checkMutable]();
      if (date == null) {
        this[_headers][$remove]("date");
      } else {
        let formatted = _http.HttpDate.format(date.toUtc());
        this[_set$]("date", formatted);
      }
    }
    get expires() {
      let values = this[_headers][$_get]("expires");
      if (values != null) {
        if (!dart.test(values[$isNotEmpty])) dart.assertFailed(null, I[419], 274, 14, "values.isNotEmpty");
        try {
          return _http.HttpDate.parse(values[$_get](0));
        } catch (t$36$35e) {
          let t$36$35ex = dart.getThrown(t$36$35e);
          if (T$.Exception()[_is](t$36$35ex)) {
            return null;
          } else
            throw t$36$35e;
        }
      }
      return null;
    }
    set expires(expires) {
      this[_checkMutable]();
      if (expires == null) {
        this[_headers][$remove]("expires");
      } else {
        let formatted = _http.HttpDate.format(expires.toUtc());
        this[_set$]("expires", formatted);
      }
    }
    get contentType() {
      let values = this[_headers][$_get]("content-type");
      if (values != null) {
        return _http.ContentType.parse(values[$_get](0));
      } else {
        return null;
      }
    }
    set contentType(contentType) {
      this[_checkMutable]();
      if (contentType == null) {
        this[_headers][$remove]("content-type");
      } else {
        this[_set$]("content-type", dart.toString(contentType));
      }
    }
    clear() {
      this[_checkMutable]();
      this[_headers][$clear]();
      this[_contentLength] = -1;
      this[_persistentConnection] = true;
      this[_chunkedTransferEncoding] = false;
      this[_host$0] = null;
      this[_port] = null;
    }
    [_add$2](name, value) {
      if (name == null) dart.nullFailed(I[419], 324, 20, "name");
      if (!(name == _http._HttpHeaders._validateField(name))) dart.assertFailed(null, I[419], 325, 12, "name == _validateField(name)");
      switch (name.length) {
        case 4:
          {
            if ("date" === name) {
              this[_addDate](name, value);
              return;
            }
            if ("host" === name) {
              this[_addHost](name, value);
              return;
            }
            break;
          }
        case 7:
          {
            if ("expires" === name) {
              this[_addExpires](name, value);
              return;
            }
            break;
          }
        case 10:
          {
            if ("connection" === name) {
              this[_addConnection](name, T$.String()[_as](value));
              return;
            }
            break;
          }
        case 12:
          {
            if ("content-type" === name) {
              this[_addContentType](name, value);
              return;
            }
            break;
          }
        case 14:
          {
            if ("content-length" === name) {
              this[_addContentLength](name, value);
              return;
            }
            break;
          }
        case 17:
          {
            if ("transfer-encoding" === name) {
              this[_addTransferEncoding](name, value);
              return;
            }
            if ("if-modified-since" === name) {
              this[_addIfModifiedSince](name, value);
              return;
            }
          }
      }
      this[_addValue](name, T$.Object()[_as](value));
    }
    [_addContentLength](name, value) {
      if (name == null) dart.nullFailed(I[419], 376, 33, "name");
      if (T$.int()[_is](value)) {
        if (dart.notNull(value) < 0) {
          dart.throw(new _http.HttpException.new("Content-Length must contain only digits"));
        }
      } else if (typeof value == 'string') {
        if (!dart.test(_http._digitsValidator.hasMatch(value))) {
          dart.throw(new _http.HttpException.new("Content-Length must contain only digits"));
        }
        value = core.int.parse(value);
      } else {
        dart.throw(new _http.HttpException.new("Unexpected type for header named " + dart.str(name)));
      }
      this.contentLength = value;
    }
    [_addTransferEncoding](name, value) {
      if (name == null) dart.nullFailed(I[419], 392, 36, "name");
      if (dart.equals(value, "chunked")) {
        this.chunkedTransferEncoding = true;
      } else {
        this[_addValue]("transfer-encoding", T$.Object()[_as](value));
      }
    }
    [_addDate](name, value) {
      if (name == null) dart.nullFailed(I[419], 400, 24, "name");
      if (T$2.DateTime()[_is](value)) {
        this.date = value;
      } else if (typeof value == 'string') {
        this[_set$]("date", value);
      } else {
        dart.throw(new _http.HttpException.new("Unexpected type for header named " + dart.str(name)));
      }
    }
    [_addExpires](name, value) {
      if (name == null) dart.nullFailed(I[419], 410, 27, "name");
      if (T$2.DateTime()[_is](value)) {
        this.expires = value;
      } else if (typeof value == 'string') {
        this[_set$]("expires", value);
      } else {
        dart.throw(new _http.HttpException.new("Unexpected type for header named " + dart.str(name)));
      }
    }
    [_addIfModifiedSince](name, value) {
      if (name == null) dart.nullFailed(I[419], 420, 35, "name");
      if (T$2.DateTime()[_is](value)) {
        this.ifModifiedSince = value;
      } else if (typeof value == 'string') {
        this[_set$]("if-modified-since", value);
      } else {
        dart.throw(new _http.HttpException.new("Unexpected type for header named " + dart.str(name)));
      }
    }
    [_addHost](name, value) {
      if (name == null) dart.nullFailed(I[419], 430, 24, "name");
      if (typeof value == 'string') {
        let pos = value[$lastIndexOf](":");
        if (pos === -1 || value[$startsWith]("[") && value[$endsWith]("]")) {
          this[_host$0] = value;
          this[_port] = 80;
        } else {
          if (pos > 0) {
            this[_host$0] = value[$substring](0, pos);
          } else {
            this[_host$0] = null;
          }
          if (pos + 1 === value.length) {
            this[_port] = 80;
          } else {
            try {
              this[_port] = core.int.parse(value[$substring](pos + 1));
            } catch (t$36$35e) {
              let t$36$35ex = dart.getThrown(t$36$35e);
              if (T$8.FormatException()[_is](t$36$35ex)) {
                this[_port] = null;
              } else
                throw t$36$35e;
            }
          }
        }
        this[_set$]("host", value);
      } else {
        dart.throw(new _http.HttpException.new("Unexpected type for header named " + dart.str(name)));
      }
    }
    [_addConnection](name, value) {
      if (name == null) dart.nullFailed(I[419], 463, 30, "name");
      if (value == null) dart.nullFailed(I[419], 463, 43, "value");
      let lowerCaseValue = value[$toLowerCase]();
      if (lowerCaseValue === "close") {
        this[_persistentConnection] = false;
      } else if (lowerCaseValue === "keep-alive") {
        this[_persistentConnection] = true;
      }
      this[_addValue](name, value);
    }
    [_addContentType](name, value) {
      if (name == null) dart.nullFailed(I[419], 473, 31, "name");
      this[_set$]("content-type", T$.String()[_as](value));
    }
    [_addValue](name, value) {
      let t$361841, t$361840, t$361839, t$361838;
      if (name == null) dart.nullFailed(I[419], 477, 25, "name");
      if (value == null) dart.nullFailed(I[419], 477, 38, "value");
      let values = (t$361838 = this[_headers], t$361839 = name, t$361840 = t$361838[$_get](t$361839), t$361840 == null ? (t$361841 = G.JSArrayOfString().of([]), t$361838[$_set](t$361839, t$361841), t$361841) : t$361840);
      values[$add](this[_valueToString](value));
    }
    [_valueToString](value) {
      if (value == null) dart.nullFailed(I[419], 482, 32, "value");
      if (T$2.DateTime()[_is](value)) {
        return _http.HttpDate.format(value);
      } else if (typeof value == 'string') {
        return value;
      } else {
        return T$.String()[_as](_http._HttpHeaders._validateValue(dart.toString(value)));
      }
    }
    [_set$](name, value) {
      if (name == null) dart.nullFailed(I[419], 492, 20, "name");
      if (value == null) dart.nullFailed(I[419], 492, 33, "value");
      if (!(name == _http._HttpHeaders._validateField(name))) dart.assertFailed(null, I[419], 493, 12, "name == _validateField(name)");
      this[_headers][$_set](name, G.JSArrayOfString().of([value]));
    }
    [_checkMutable]() {
      if (!dart.test(this[_mutable])) dart.throw(new _http.HttpException.new("HTTP headers are not mutable"));
    }
    [_updateHostHeader]() {
      let host = this[_host$0];
      if (host != null) {
        let defaultPort = this[_port] == null || this[_port] == this[_defaultPortForScheme];
        this[_set$]("host", defaultPort ? host : dart.str(host) + ":" + dart.str(this[_port]));
      }
    }
    [_foldHeader](name) {
      if (name == null) dart.nullFailed(I[419], 509, 27, "name");
      if (name === "set-cookie") return false;
      let noFoldingHeaders = this[_noFoldingHeaders];
      return noFoldingHeaders == null || !dart.test(noFoldingHeaders[$contains](name));
    }
    [_finalize]() {
      this[_mutable] = false;
    }
    [_build](builder, opts) {
      if (builder == null) dart.nullFailed(I[419], 519, 28, "builder");
      let skipZeroContentLength = opts && 'skipZeroContentLength' in opts ? opts.skipZeroContentLength : false;
      if (skipZeroContentLength == null) dart.nullFailed(I[419], 519, 43, "skipZeroContentLength");
      let ignoreHeader = this[_contentLength] === 0 && dart.test(skipZeroContentLength) ? "content-length" : null;
      this[_headers][$forEach](dart.fn((name, values) => {
        if (name == null) dart.nullFailed(I[419], 528, 30, "name");
        if (values == null) dart.nullFailed(I[419], 528, 49, "values");
        if (ignoreHeader == name) {
          return;
        }
        let originalName = this[_originalHeaderName](name);
        let fold = this[_foldHeader](name);
        let nameData = originalName[$codeUnits];
        builder.add(nameData);
        builder.addByte(58);
        builder.addByte(32);
        for (let i = 0; i < dart.notNull(values[$length]); i = i + 1) {
          if (i > 0) {
            if (dart.test(fold)) {
              builder.addByte(44);
              builder.addByte(32);
            } else {
              builder.addByte(13);
              builder.addByte(10);
              builder.add(nameData);
              builder.addByte(58);
              builder.addByte(32);
            }
          }
          builder.add(values[$_get](i)[$codeUnits]);
        }
        builder.addByte(13);
        builder.addByte(10);
      }, T$10.StringAndListOfStringTovoid()));
    }
    toString() {
      let sb = new core.StringBuffer.new();
      this[_headers][$forEach](dart.fn((name, values) => {
        let t$361838, t$361838$;
        if (name == null) dart.nullFailed(I[419], 560, 30, "name");
        if (values == null) dart.nullFailed(I[419], 560, 49, "values");
        let originalName = this[_originalHeaderName](name);
        t$361838 = sb;
        (() => {
          t$361838.write(originalName);
          t$361838.write(": ");
          return t$361838;
        })();
        let fold = this[_foldHeader](name);
        for (let i = 0; i < dart.notNull(values[$length]); i = i + 1) {
          if (i > 0) {
            if (dart.test(fold)) {
              sb.write(", ");
            } else {
              t$361838$ = sb;
              (() => {
                t$361838$.write("\n");
                t$361838$.write(originalName);
                t$361838$.write(": ");
                return t$361838$;
              })();
            }
          }
          sb.write(values[$_get](i));
        }
        sb.write("\n");
      }, T$10.StringAndListOfStringTovoid()));
      return dart.toString(sb);
    }
    [_parseCookies]() {
      let cookies = G$.JSArrayOfCookie().of([]);
      function parseCookieString(s) {
        if (s == null) dart.nullFailed(I[419], 587, 35, "s");
        let index = 0;
        function done() {
          return index === -1 || index === s.length;
        }
        dart.fn(done, T$.VoidTobool());
        function skipWS() {
          while (!dart.test(done())) {
            if (s[$_get](index) !== " " && s[$_get](index) !== "\t") return;
            index = index + 1;
          }
        }
        dart.fn(skipWS, T$.VoidTovoid());
        function parseName() {
          let start = index;
          while (!dart.test(done())) {
            if (s[$_get](index) === " " || s[$_get](index) === "\t" || s[$_get](index) === "=") break;
            index = index + 1;
          }
          return s[$substring](start, index);
        }
        dart.fn(parseName, T$.VoidToString());
        function parseValue() {
          let start = index;
          while (!dart.test(done())) {
            if (s[$_get](index) === " " || s[$_get](index) === "\t" || s[$_get](index) === ";") break;
            index = index + 1;
          }
          return s[$substring](start, index);
        }
        dart.fn(parseValue, T$.VoidToString());
        function expect(expected) {
          if (expected == null) dart.nullFailed(I[419], 617, 26, "expected");
          if (dart.test(done())) return false;
          if (s[$_get](index) !== expected) return false;
          index = index + 1;
          return true;
        }
        dart.fn(expect, T$.StringTobool());
        while (!dart.test(done())) {
          skipWS();
          if (dart.test(done())) return;
          let name = parseName();
          skipWS();
          if (!dart.test(expect("="))) {
            index = s[$indexOf](";", index);
            continue;
          }
          skipWS();
          let value = parseValue();
          try {
            cookies[$add](new _http._Cookie.new(name, value));
          } catch (t$36$35e) {
            let _ = dart.getThrown(t$36$35e);
            if (T$.Object()[_is](_)) {
            } else
              throw t$36$35e;
          }
          skipWS();
          if (dart.test(done())) return;
          if (!dart.test(expect(";"))) {
            index = s[$indexOf](";", index);
            continue;
          }
        }
      }
      dart.fn(parseCookieString, T$.StringTovoid());
      let values = this[_headers][$_get]("cookie");
      if (values != null) {
        for (let headerValue of values) {
          parseCookieString(headerValue);
        }
      }
      return cookies;
    }
    static _validateField(field) {
      if (field == null) dart.nullFailed(I[419], 658, 39, "field");
      for (let i = 0; i < field.length; i = i + 1) {
        if (!dart.test(_http._HttpParser._isTokenChar(field[$codeUnitAt](i)))) {
          dart.throw(new core.FormatException.new("Invalid HTTP header field name: " + dart.str(convert.json.encode(field)), field, i));
        }
      }
      return field[$toLowerCase]();
    }
    static _validateValue(value) {
      if (value == null) dart.nullFailed(I[419], 668, 39, "value");
      if (!(typeof value == 'string')) return value;
      for (let i = 0; i < value.length; i = i + 1) {
        if (!dart.test(_http._HttpParser._isValueChar(value[$codeUnitAt](i)))) {
          dart.throw(new core.FormatException.new("Invalid HTTP header field value: " + dart.str(convert.json.encode(value)), value, i));
        }
      }
      return value;
    }
    [_originalHeaderName](name) {
      let t$361839, t$361839$;
      if (name == null) dart.nullFailed(I[419], 679, 37, "name");
      t$361839$ = (t$361839 = this[_originalHeaderNames], t$361839 == null ? null : t$361839[$_get](name));
      return t$361839$ == null ? name : t$361839$;
    }
  };
  (_http._HttpHeaders.new = function(protocolVersion, opts) {
    if (protocolVersion == null) dart.nullFailed(I[419], 26, 21, "protocolVersion");
    let defaultPortForScheme = opts && 'defaultPortForScheme' in opts ? opts.defaultPortForScheme : 80;
    if (defaultPortForScheme == null) dart.nullFailed(I[419], 27, 12, "defaultPortForScheme");
    let initialHeaders = opts && 'initialHeaders' in opts ? opts.initialHeaders : null;
    this[_originalHeaderNames] = null;
    this[_mutable] = true;
    this[_noFoldingHeaders] = null;
    this[_contentLength] = -1;
    this[_persistentConnection] = true;
    this[_chunkedTransferEncoding] = false;
    this[_host$0] = null;
    this[_port] = null;
    this[protocolVersion$] = protocolVersion;
    this[_headers] = new (G$.IdentityMapOfString$ListOfString()).new();
    this[_defaultPortForScheme] = defaultPortForScheme;
    if (initialHeaders != null) {
      initialHeaders[_headers][$forEach](dart.fn((name, value) => {
        let t$361832, t$361831, t$361830;
        if (name == null) dart.nullFailed(I[419], 32, 40, "name");
        if (value == null) dart.nullFailed(I[419], 32, 46, "value");
        t$361830 = this[_headers];
        t$361831 = name;
        t$361832 = value;
        t$361830[$_set](t$361831, t$361832);
        return t$361832;
      }, T$10.StringAndListOfStringTovoid()));
      this[_contentLength] = initialHeaders[_contentLength];
      this[_persistentConnection] = initialHeaders[_persistentConnection];
      this[_chunkedTransferEncoding] = initialHeaders[_chunkedTransferEncoding];
      this[_host$0] = initialHeaders[_host$0];
      this[_port] = initialHeaders[_port];
    }
    if (this.protocolVersion === "1.0") {
      this[_persistentConnection] = false;
      this[_chunkedTransferEncoding] = false;
    }
  }).prototype = _http._HttpHeaders.prototype;
  dart.addRtiResources(_http._HttpHeaders, ["_http|_HttpHeaders", "_http|HttpHeaders"]);
  dart.setMethodSignature(_http._HttpHeaders, () => dart.global.Object.setPrototypeOf({
    _get: T$13.StringToListNOfString(),
    value: T$.StringToStringN(),
    add: T$13.StringAndObject__Tovoid(),
    [_addAll$]: T$2.StringAnddynamicTovoid(),
    set: T$13.StringAndObject__Tovoid(),
    remove: T$3.StringAndObjectTovoid(),
    removeAll: T$.StringTovoid(),
    forEach: T$13.FnTovoid$50(),
    noFolding: T$.StringTovoid(),
    clear: T$.VoidTovoid(),
    [_add$2]: T$2.StringAnddynamicTovoid(),
    [_addContentLength]: T$2.StringAnddynamicTovoid(),
    [_addTransferEncoding]: T$2.StringAnddynamicTovoid(),
    [_addDate]: T$2.StringAnddynamicTovoid(),
    [_addExpires]: T$2.StringAnddynamicTovoid(),
    [_addIfModifiedSince]: T$2.StringAnddynamicTovoid(),
    [_addHost]: T$2.StringAnddynamicTovoid(),
    [_addConnection]: T$2.StringAndStringTovoid(),
    [_addContentType]: T$2.StringAnddynamicTovoid(),
    [_addValue]: T$3.StringAndObjectTovoid(),
    [_valueToString]: T$.ObjectToString(),
    [_set$]: T$2.StringAndStringTovoid(),
    [_checkMutable]: T$.VoidTovoid(),
    [_updateHostHeader]: T$.VoidTovoid(),
    [_foldHeader]: T$.StringTobool(),
    [_finalize]: T$.VoidTovoid(),
    [_build]: T$13.BytesBuilder__Tovoid(),
    [_parseCookies]: T$13.VoidToListOfCookie(),
    [_originalHeaderName]: T$.StringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpHeaders))));
  dart.setStaticMethodSignature(_http._HttpHeaders, () => ['_validateField', '_validateValue']);
  dart.setGetterSignature(_http._HttpHeaders, () => dart.global.Object.setPrototypeOf({
    persistentConnection: T$.bool(),
    contentLength: T$.int(),
    chunkedTransferEncoding: T$.bool(),
    host: T$.StringN(),
    port: T$.intN(),
    ifModifiedSince: T$5.DateTimeN(),
    date: T$5.DateTimeN(),
    expires: T$5.DateTimeN(),
    contentType: T$13.ContentTypeN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpHeaders))));
  dart.setSetterSignature(_http._HttpHeaders, () => dart.global.Object.setPrototypeOf({
    persistentConnection: T$.bool(),
    contentLength: T$.int(),
    chunkedTransferEncoding: T$.bool(),
    host: T$.StringN(),
    port: T$.intN(),
    ifModifiedSince: T$5.DateTimeN(),
    date: T$5.DateTimeN(),
    expires: T$5.DateTimeN(),
    contentType: T$13.ContentTypeN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpHeaders))));
  dart.setLibraryUri(_http._HttpHeaders, I[416]);
  dart.setFieldSignature(_http._HttpHeaders, () => dart.global.Object.setPrototypeOf({
    [_headers]: {type: T$8.MapOfString$ListOfString(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_originalHeaderNames]: {type: T$8.MapNOfString$String(), isConst: false, isFinal: false, libraryUri: I[11]},
    protocolVersion: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_mutable]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_noFoldingHeaders]: {type: T$.ListNOfString(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_contentLength]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_persistentConnection]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_chunkedTransferEncoding]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_host$0]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_port]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_defaultPortForScheme]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpHeaders))));
  dart.defineExtensionMethods(_http._HttpHeaders, ['toString']);
  var _parameters = dart.privateName(_http, "_parameters");
  var _unmodifiableParameters = dart.privateName(_http, "_unmodifiableParameters");
  var _value$6 = dart.privateName(_http, "_value");
  var _parse = dart.privateName(_http, "_parse");
  var _ensureParameters = dart.privateName(_http, "_ensureParameters");
  _http._HeaderValue = class _HeaderValue extends core.Object {
    static ['_#new#tearOff'](_value = "", parameters = C[1224] || CT.C1224) {
      if (_value == null) dart.nullFailed(I[419], 689, 22, "_value");
      if (parameters == null) dart.nullFailed(I[419], 689, 56, "parameters");
      return new _http._HeaderValue.new(_value, parameters);
    }
    static parse(value, opts) {
      if (value == null) dart.nullFailed(I[419], 697, 36, "value");
      let parameterSeparator = opts && 'parameterSeparator' in opts ? opts.parameterSeparator : ";";
      if (parameterSeparator == null) dart.nullFailed(I[419], 698, 15, "parameterSeparator");
      let valueSeparator = opts && 'valueSeparator' in opts ? opts.valueSeparator : null;
      let preserveBackslash = opts && 'preserveBackslash' in opts ? opts.preserveBackslash : false;
      if (preserveBackslash == null) dart.nullFailed(I[419], 700, 12, "preserveBackslash");
      let result = new _http._HeaderValue.new();
      result[_parse](value, parameterSeparator, valueSeparator, preserveBackslash);
      return result;
    }
    get value() {
      return this[_value$6];
    }
    [_ensureParameters]() {
      let t$361839;
      t$361839 = this[_parameters];
      return t$361839 == null ? this[_parameters] = new (G$.IdentityMapOfString$StringN()).new() : t$361839;
    }
    get parameters() {
      let t$361839;
      t$361839 = this[_unmodifiableParameters];
      return t$361839 == null ? this[_unmodifiableParameters] = new (G$.UnmodifiableMapViewOfString$StringN()).new(this[_ensureParameters]()) : t$361839;
    }
    static _isToken(token) {
      if (token == null) dart.nullFailed(I[419], 715, 31, "token");
      if (token[$isEmpty]) {
        return false;
      }
      let delimiters = "\"(),/:;<=>?@[]{}";
      for (let i = 0; i < token.length; i = i + 1) {
        let codeUnit = token[$codeUnitAt](i);
        if (codeUnit <= 32 || codeUnit >= 127 || delimiters[$contains](token[$_get](i))) {
          return false;
        }
      }
      return true;
    }
    toString() {
      let sb = new core.StringBuffer.new();
      sb.write(this[_value$6]);
      let parameters = this[_parameters];
      if (parameters != null && dart.test(parameters[$isNotEmpty])) {
        parameters[$forEach](dart.fn((name, value) => {
          let t$361839, t$361839$;
          if (name == null) dart.nullFailed(I[419], 734, 34, "name");
          t$361839 = sb;
          (() => {
            t$361839.write("; ");
            t$361839.write(name);
            return t$361839;
          })();
          if (value != null) {
            sb.write("=");
            if (dart.test(_http._HeaderValue._isToken(value))) {
              sb.write(value);
            } else {
              sb.write("\"");
              let start = 0;
              for (let i = 0; i < value.length; i = i + 1) {
                let codeUnit = value[$codeUnitAt](i);
                if (codeUnit === 92 || codeUnit === 34) {
                  sb.write(value[$substring](start, i));
                  sb.write("\\");
                  start = i;
                }
              }
              t$361839$ = sb;
              (() => {
                t$361839$.write(value[$substring](start));
                t$361839$.write("\"");
                return t$361839$;
              })();
            }
          }
        }, T$4.StringAndStringNTovoid()));
      }
      return dart.toString(sb);
    }
    [_parse](s, parameterSeparator, valueSeparator, preserveBackslash) {
      if (s == null) dart.nullFailed(I[419], 765, 22, "s");
      if (parameterSeparator == null) dart.nullFailed(I[419], 765, 32, "parameterSeparator");
      if (preserveBackslash == null) dart.nullFailed(I[419], 766, 12, "preserveBackslash");
      let index = 0;
      function done() {
        return index === s.length;
      }
      dart.fn(done, T$.VoidTobool());
      function skipWS() {
        while (!dart.test(done())) {
          if (s[$_get](index) !== " " && s[$_get](index) !== "\t") return;
          index = index + 1;
        }
      }
      dart.fn(skipWS, T$.VoidTovoid());
      function parseValue() {
        let start = index;
        while (!dart.test(done())) {
          let char = s[$_get](index);
          if (char === " " || char === "\t" || char === valueSeparator || char === parameterSeparator) break;
          index = index + 1;
        }
        return s[$substring](start, index);
      }
      dart.fn(parseValue, T$.VoidToString());
      function expect(expected) {
        if (expected == null) dart.nullFailed(I[419], 791, 24, "expected");
        if (dart.test(done()) || s[$_get](index) !== expected) {
          dart.throw(new _http.HttpException.new("Failed to parse header value"));
        }
        index = index + 1;
      }
      dart.fn(expect, T$.StringTovoid());
      function maybeExpect(expected) {
        if (expected == null) dart.nullFailed(I[419], 798, 29, "expected");
        if (dart.test(done()) || !s[$startsWith](expected, index)) {
          return false;
        }
        index = index + 1;
        return true;
      }
      dart.fn(maybeExpect, T$.StringTobool());
      const parseParameters = () => {
        let parameters = this[_ensureParameters]();
        function parseParameterName() {
          let start = index;
          while (!dart.test(done())) {
            let char = s[$_get](index);
            if (char === " " || char === "\t" || char === "=" || char === parameterSeparator || char === valueSeparator) break;
            index = index + 1;
          }
          return s[$substring](start, index)[$toLowerCase]();
        }
        dart.fn(parseParameterName, T$.VoidToString());
        function parseParameterValue() {
          if (!dart.test(done()) && s[$_get](index) === "\"") {
            let sb = new core.StringBuffer.new();
            index = index + 1;
            while (!dart.test(done())) {
              let char = s[$_get](index);
              if (char === "\\") {
                if (index + 1 === s.length) {
                  dart.throw(new _http.HttpException.new("Failed to parse header value"));
                }
                if (dart.test(preserveBackslash) && s[$_get](index + 1) !== "\"") {
                  sb.write(char);
                }
                index = index + 1;
              } else if (char === "\"") {
                index = index + 1;
                return dart.toString(sb);
              }
              char = s[$_get](index);
              sb.write(char);
              index = index + 1;
            }
            dart.throw(new _http.HttpException.new("Failed to parse header value"));
          } else {
            return parseValue();
          }
        }
        dart.fn(parseParameterValue, T$.VoidToString());
        while (!dart.test(done())) {
          skipWS();
          if (dart.test(done())) return;
          let name = parseParameterName();
          skipWS();
          if (dart.test(maybeExpect("="))) {
            skipWS();
            let value = parseParameterValue();
            if (name === "charset" && T$13._ContentType()[_is](this)) {
              value = value[$toLowerCase]();
            }
            parameters[$_set](name, value);
            skipWS();
          } else if (name[$isNotEmpty]) {
            parameters[$_set](name, null);
          }
          if (dart.test(done())) return;
          if (s[$_get](index) === valueSeparator) return;
          expect(parameterSeparator);
        }
      };
      dart.fn(parseParameters, T$.VoidTovoid());
      skipWS();
      this[_value$6] = parseValue();
      skipWS();
      if (dart.test(done())) return;
      if (s[$_get](index) === valueSeparator) return;
      maybeExpect(parameterSeparator);
      parseParameters();
    }
  };
  (_http._HeaderValue.new = function(_value = "", parameters = C[1224] || CT.C1224) {
    if (_value == null) dart.nullFailed(I[419], 689, 22, "_value");
    if (parameters == null) dart.nullFailed(I[419], 689, 56, "parameters");
    this[_parameters] = null;
    this[_unmodifiableParameters] = null;
    this[_value$6] = _value;
    let nullableParameters = parameters;
    if (nullableParameters != null && dart.test(nullableParameters[$isNotEmpty])) {
      this[_parameters] = G$.HashMapOfString$StringN().from(nullableParameters);
    }
  }).prototype = _http._HeaderValue.prototype;
  dart.addRtiResources(_http._HeaderValue, ["_http|_HeaderValue", "_http|HeaderValue"]);
  dart.setMethodSignature(_http._HeaderValue, () => dart.global.Object.setPrototypeOf({
    [_ensureParameters]: T$13.VoidToMapOfString$StringN(),
    [_parse]: T$13.StringAndStringAndStringN__Tovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HeaderValue))));
  dart.setStaticMethodSignature(_http._HeaderValue, () => ['parse', '_isToken']);
  dart.setGetterSignature(_http._HeaderValue, () => dart.global.Object.setPrototypeOf({
    value: T$.String(),
    parameters: T$13.MapOfString$StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HeaderValue))));
  dart.setLibraryUri(_http._HeaderValue, I[416]);
  dart.setFieldSignature(_http._HeaderValue, () => dart.global.Object.setPrototypeOf({
    [_value$6]: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_parameters]: {type: T$13.MapNOfString$StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_unmodifiableParameters]: {type: T$13.MapNOfString$StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HeaderValue))));
  dart.defineExtensionMethods(_http._HeaderValue, ['toString']);
  var _primaryType = dart.privateName(_http, "_primaryType");
  var _subType = dart.privateName(_http, "_subType");
  _http._ContentType = class _ContentType extends _http._HeaderValue {
    static ['_#new#tearOff'](primaryType, subType, charset, parameters) {
      if (primaryType == null) dart.nullFailed(I[419], 891, 23, "primaryType");
      if (subType == null) dart.nullFailed(I[419], 891, 43, "subType");
      if (parameters == null) dart.nullFailed(I[419], 892, 28, "parameters");
      return new _http._ContentType.new(primaryType, subType, charset, parameters);
    }
    static ['_#_#tearOff']() {
      return new _http._ContentType.__();
    }
    static parse(value) {
      if (value == null) dart.nullFailed(I[419], 920, 36, "value");
      let result = new _http._ContentType.__();
      result[_parse](value, ";", null, false);
      let index = result[_value$6][$indexOf]("/");
      if (index === -1 || index === result[_value$6].length - 1) {
        result[_primaryType] = result[_value$6][$trim]()[$toLowerCase]();
      } else {
        result[_primaryType] = result[_value$6][$substring](0, index)[$trim]()[$toLowerCase]();
        result[_subType] = result[_value$6][$substring](index + 1)[$trim]()[$toLowerCase]();
      }
      return result;
    }
    get mimeType() {
      return dart.str(this.primaryType) + "/" + dart.str(this.subType);
    }
    get primaryType() {
      return this[_primaryType];
    }
    get subType() {
      return this[_subType];
    }
    get charset() {
      return this.parameters[$_get]("charset");
    }
  };
  (_http._ContentType.new = function(primaryType, subType, charset, parameters) {
    if (primaryType == null) dart.nullFailed(I[419], 891, 23, "primaryType");
    if (subType == null) dart.nullFailed(I[419], 891, 43, "subType");
    if (parameters == null) dart.nullFailed(I[419], 892, 28, "parameters");
    this[_primaryType] = "";
    this[_subType] = "";
    this[_primaryType] = primaryType;
    this[_subType] = subType;
    dart.global.Object.getPrototypeOf(_http._ContentType).new.call(this, "");
    function emptyIfNull(string) {
      let t$361839;
      t$361839 = string;
      return t$361839 == null ? "" : t$361839;
    }
    dart.fn(emptyIfNull, T$11.StringNToString());
    this[_primaryType] = emptyIfNull(this[_primaryType]);
    this[_subType] = emptyIfNull(this[_subType]);
    this[_value$6] = dart.str(this[_primaryType]) + "/" + dart.str(this[_subType]);
    let nullableParameters = parameters;
    if (nullableParameters != null) {
      let parameterMap = this[_ensureParameters]();
      nullableParameters[$forEach](dart.fn((key, value) => {
        let t$361839;
        if (key == null) dart.nullFailed(I[419], 905, 42, "key");
        let lowerCaseKey = key[$toLowerCase]();
        if (lowerCaseKey === "charset") {
          value = (t$361839 = value, t$361839 == null ? null : t$361839[$toLowerCase]());
        }
        parameterMap[$_set](lowerCaseKey, value);
      }, T$4.StringAndStringNTovoid()));
    }
    if (charset != null) {
      this[_ensureParameters]()[$_set]("charset", charset[$toLowerCase]());
    }
  }).prototype = _http._ContentType.prototype;
  (_http._ContentType.__ = function() {
    this[_primaryType] = "";
    this[_subType] = "";
    dart.global.Object.getPrototypeOf(_http._ContentType).new.call(this);
    ;
  }).prototype = _http._ContentType.prototype;
  dart.addRtiResources(_http._ContentType, ["_http|_ContentType", "_http|ContentType", "_http|HeaderValue"]);
  dart.setStaticMethodSignature(_http._ContentType, () => ['parse']);
  dart.setGetterSignature(_http._ContentType, () => dart.global.Object.setPrototypeOf({
    mimeType: T$.String(),
    primaryType: T$.String(),
    subType: T$.String(),
    charset: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._ContentType))));
  dart.setLibraryUri(_http._ContentType, I[416]);
  dart.setFieldSignature(_http._ContentType, () => dart.global.Object.setPrototypeOf({
    [_primaryType]: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_subType]: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._ContentType))));
  var expires$0 = dart.privateName(_http, "_Cookie.expires");
  var maxAge$ = dart.privateName(_http, "_Cookie.maxAge");
  var domain$ = dart.privateName(_http, "_Cookie.domain");
  var httpOnly$ = dart.privateName(_http, "_Cookie.httpOnly");
  var secure$ = dart.privateName(_http, "_Cookie.secure");
  var sameSite$ = dart.privateName(_http, "_Cookie.sameSite");
  var _path$4 = dart.privateName(_http, "_path");
  var _name$6 = dart.privateName(_http, "_name");
  var _parseSetCookieValue = dart.privateName(_http, "_parseSetCookieValue");
  _http._Cookie = class _Cookie extends core.Object {
    get expires() {
      return this[expires$0];
    }
    set expires(value) {
      this[expires$0] = value;
    }
    get maxAge() {
      return this[maxAge$];
    }
    set maxAge(value) {
      this[maxAge$] = value;
    }
    get domain() {
      return this[domain$];
    }
    set domain(value) {
      this[domain$] = value;
    }
    get httpOnly() {
      return this[httpOnly$];
    }
    set httpOnly(value) {
      if (value == null) dart.nullFailed(I[419], 950, 8, "httpOnly");
      this[httpOnly$] = value;
    }
    get secure() {
      return this[secure$];
    }
    set secure(value) {
      if (value == null) dart.nullFailed(I[419], 951, 8, "secure");
      this[secure$] = value;
    }
    get sameSite() {
      return this[sameSite$];
    }
    set sameSite(value) {
      this[sameSite$] = value;
    }
    static ['_#new#tearOff'](name, value) {
      if (name == null) dart.nullFailed(I[419], 954, 18, "name");
      if (value == null) dart.nullFailed(I[419], 954, 31, "value");
      return new _http._Cookie.new(name, value);
    }
    get name() {
      return this[_name$6];
    }
    get value() {
      return this[_value$6];
    }
    get path() {
      return this[_path$4];
    }
    set path(newPath) {
      _http._Cookie._validatePath(newPath);
      this[_path$4] = newPath;
    }
    set name(newName) {
      if (newName == null) dart.nullFailed(I[419], 969, 19, "newName");
      _http._Cookie._validateName(newName);
      this[_name$6] = newName;
    }
    set value(newValue) {
      if (newValue == null) dart.nullFailed(I[419], 974, 20, "newValue");
      _http._Cookie._validateValue(newValue);
      this[_value$6] = newValue;
    }
    static ['_#fromSetCookieValue#tearOff'](value) {
      if (value == null) dart.nullFailed(I[419], 979, 37, "value");
      return new _http._Cookie.fromSetCookieValue(value);
    }
    [_parseSetCookieValue](s) {
      if (s == null) dart.nullFailed(I[419], 987, 36, "s");
      let index = 0;
      function done() {
        return index === s.length;
      }
      dart.fn(done, T$.VoidTobool());
      function parseName() {
        let start = index;
        while (!dart.test(done())) {
          if (s[$_get](index) === "=") break;
          index = index + 1;
        }
        return s[$substring](start, index)[$trim]();
      }
      dart.fn(parseName, T$.VoidToString());
      function parseValue() {
        let start = index;
        while (!dart.test(done())) {
          if (s[$_get](index) === ";") break;
          index = index + 1;
        }
        return s[$substring](start, index)[$trim]();
      }
      dart.fn(parseValue, T$.VoidToString());
      const parseAttributes = () => {
        function parseAttributeName() {
          let start = index;
          while (!dart.test(done())) {
            if (s[$_get](index) === "=" || s[$_get](index) === ";") break;
            index = index + 1;
          }
          return s[$substring](start, index)[$trim]()[$toLowerCase]();
        }
        dart.fn(parseAttributeName, T$.VoidToString());
        function parseAttributeValue() {
          let start = index;
          while (!dart.test(done())) {
            if (s[$_get](index) === ";") break;
            index = index + 1;
          }
          return s[$substring](start, index)[$trim]()[$toLowerCase]();
        }
        dart.fn(parseAttributeValue, T$.VoidToString());
        while (!dart.test(done())) {
          let name = parseAttributeName();
          let value = "";
          if (!dart.test(done()) && s[$_get](index) === "=") {
            index = index + 1;
            value = parseAttributeValue();
          }
          if (name === "expires") {
            this.expires = _http.HttpDate._parseCookieDate(value);
          } else if (name === "max-age") {
            this.maxAge = core.int.parse(value);
          } else if (name === "domain") {
            this.domain = value;
          } else if (name === "path") {
            this.path = value;
          } else if (name === "httponly") {
            this.httpOnly = true;
          } else if (name === "secure") {
            this.secure = true;
          } else if (name === "samesite") {
            this.sameSite = (() => {
              let t$361839 = null;
              let t$36$350$350 = value;
              L15: {
                {
                  if ("lax" === t$36$350$350) {
                    t$361839 = _http.SameSite.lax;
                    break L15;
                  }
                }
                {
                  if ("none" === t$36$350$350) {
                    t$361839 = _http.SameSite.none;
                    break L15;
                  }
                }
                {
                  if ("strict" === t$36$350$350) {
                    t$361839 = _http.SameSite.strict;
                    break L15;
                  }
                }
                {
                  {
                    t$361839 = dart.throw(new _http.HttpException.new("SameSite value should be one of Lax, Strict or None."));
                    break L15;
                  }
                }
                dart.throw(new _internal.ReachabilityError.new("`null` encountered as case in a switch expression with a non-nullable type."));
              }
              return t$361839;
            })();
          }
          if (!dart.test(done())) index = index + 1;
        }
      };
      dart.fn(parseAttributes, T$.VoidTovoid());
      this[_name$6] = _http._Cookie._validateName(parseName());
      if (dart.test(done()) || this[_name$6][$isEmpty]) {
        dart.throw(new _http.HttpException.new("Failed to parse header value [" + dart.str(s) + "]"));
      }
      index = index + 1;
      this[_value$6] = _http._Cookie._validateValue(parseValue());
      if (dart.test(done())) return;
      index = index + 1;
      parseAttributes();
    }
    toString() {
      let t$361841, t$361841$, t$361841$0, t$361841$1, t$361841$2;
      let sb = new core.StringBuffer.new();
      t$361841 = sb;
      (() => {
        t$361841.write(this[_name$6]);
        t$361841.write("=");
        t$361841.write(this[_value$6]);
        return t$361841;
      })();
      let expires = this.expires;
      if (expires != null) {
        t$361841$ = sb;
        (() => {
          t$361841$.write("; Expires=");
          t$361841$.write(_http.HttpDate.format(expires));
          return t$361841$;
        })();
      }
      if (this.maxAge != null) {
        t$361841$0 = sb;
        (() => {
          t$361841$0.write("; Max-Age=");
          t$361841$0.write(this.maxAge);
          return t$361841$0;
        })();
      }
      if (this.domain != null) {
        t$361841$1 = sb;
        (() => {
          t$361841$1.write("; Domain=");
          t$361841$1.write(this.domain);
          return t$361841$1;
        })();
      }
      if (this.path != null) {
        t$361841$2 = sb;
        (() => {
          t$361841$2.write("; Path=");
          t$361841$2.write(this.path);
          return t$361841$2;
        })();
      }
      if (dart.test(this.secure)) sb.write("; Secure");
      if (dart.test(this.httpOnly)) sb.write("; HttpOnly");
      if (this.sameSite != null) sb.write("; " + dart.str(this.sameSite));
      return dart.toString(sb);
    }
    static _validateName(newName) {
      if (newName == null) dart.nullFailed(I[419], 1106, 38, "newName");
      let separators = C[1240] || CT.C1240;
      if (newName == null) dart.throw(new core.ArgumentError.notNull("name"));
      for (let i = 0; i < newName.length; i = i + 1) {
        let codeUnit = newName[$codeUnitAt](i);
        if (codeUnit <= 32 || codeUnit >= 127 || dart.test(separators[$contains](newName[$_get](i)))) {
          dart.throw(new core.FormatException.new("Invalid character in cookie name, code unit: '" + dart.strSafe(codeUnit) + "'", newName, i));
        }
      }
      return newName;
    }
    static _validateValue(newValue) {
      if (newValue == null) dart.nullFailed(I[419], 1141, 39, "newValue");
      if (newValue == null) dart.throw(new core.ArgumentError.notNull("value"));
      let start = 0;
      let end = newValue.length;
      if (2 <= newValue.length && newValue[$codeUnits][$_get](start) === 34 && newValue[$codeUnits][$_get](end - 1) === 34) {
        start = start + 1;
        end = end - 1;
      }
      for (let i = start; i < end; i = i + 1) {
        let codeUnit = newValue[$codeUnits][$_get](i);
        if (!(codeUnit === 33 || dart.notNull(codeUnit) >= 35 && dart.notNull(codeUnit) <= 43 || dart.notNull(codeUnit) >= 45 && dart.notNull(codeUnit) <= 58 || dart.notNull(codeUnit) >= 60 && dart.notNull(codeUnit) <= 91 || dart.notNull(codeUnit) >= 93 && dart.notNull(codeUnit) <= 126)) {
          dart.throw(new core.FormatException.new("Invalid character in cookie value, code unit: '" + dart.str(codeUnit) + "'", newValue, i));
        }
      }
      return newValue;
    }
    static _validatePath(path) {
      if (path == null) return;
      for (let i = 0; i < path.length; i = i + 1) {
        let codeUnit = path[$codeUnitAt](i);
        if (codeUnit < 32 || codeUnit >= 127 || codeUnit === 59) {
          dart.throw(new core.FormatException.new("Invalid character in cookie path, code unit: '" + dart.strSafe(codeUnit) + "'"));
        }
      }
    }
  };
  (_http._Cookie.new = function(name, value) {
    if (name == null) dart.nullFailed(I[419], 954, 18, "name");
    if (value == null) dart.nullFailed(I[419], 954, 31, "value");
    this[expires$0] = null;
    this[maxAge$] = null;
    this[domain$] = null;
    this[_path$4] = null;
    this[httpOnly$] = false;
    this[secure$] = false;
    this[sameSite$] = null;
    this[_name$6] = _http._Cookie._validateName(name);
    this[_value$6] = _http._Cookie._validateValue(value);
    this[httpOnly$] = true;
    ;
  }).prototype = _http._Cookie.prototype;
  (_http._Cookie.fromSetCookieValue = function(value) {
    if (value == null) dart.nullFailed(I[419], 979, 37, "value");
    this[expires$0] = null;
    this[maxAge$] = null;
    this[domain$] = null;
    this[_path$4] = null;
    this[httpOnly$] = false;
    this[secure$] = false;
    this[sameSite$] = null;
    this[_name$6] = "";
    this[_value$6] = "";
    this[_parseSetCookieValue](value);
  }).prototype = _http._Cookie.prototype;
  dart.addRtiResources(_http._Cookie, ["_http|_Cookie", "_http|Cookie"]);
  dart.setMethodSignature(_http._Cookie, () => dart.global.Object.setPrototypeOf({[_parseSetCookieValue]: T$.StringTovoid()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http._Cookie))));
  dart.setStaticMethodSignature(_http._Cookie, () => ['_validateName', '_validateValue', '_validatePath']);
  dart.setGetterSignature(_http._Cookie, () => dart.global.Object.setPrototypeOf({
    name: T$.String(),
    value: T$.String(),
    path: T$.StringN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._Cookie))));
  dart.setSetterSignature(_http._Cookie, () => dart.global.Object.setPrototypeOf({
    path: T$.StringN(),
    name: T$.String(),
    value: T$.String()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._Cookie))));
  dart.setLibraryUri(_http._Cookie, I[416]);
  dart.setFieldSignature(_http._Cookie, () => dart.global.Object.setPrototypeOf({
    [_name$6]: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_value$6]: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    expires: {type: T$5.DateTimeN(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxAge: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    domain: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_path$4]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    httpOnly: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    secure: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    sameSite: {type: T$13.SameSiteN(), isConst: false, isFinal: false, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._Cookie))));
  dart.defineExtensionMethods(_http._Cookie, ['toString']);
  var _timeline = dart.privateName(_http, "_timeline");
  _http.HttpProfiler = class HttpProfiler extends core.Object {
    static startRequest(method, uri, opts) {
      let t$361841;
      if (method == null) dart.nullFailed(I[420], 13, 12, "method");
      if (uri == null) dart.nullFailed(I[420], 14, 9, "uri");
      let parentRequest = opts && 'parentRequest' in opts ? opts.parentRequest : null;
      ;
      let data = new _http._HttpProfileData.new(method, uri, (t$361841 = parentRequest, t$361841 == null ? null : t$361841[_timeline]));
      _http.HttpProfiler._profile[$_set](data.id, data);
      return data;
    }
    static getHttpProfileRequest(id) {
      if (id == null) dart.nullFailed(I[420], 23, 57, "id");
      return _http.HttpProfiler._profile[$_get](id);
    }
    static clear() {
      return _http.HttpProfiler._profile[$clear]();
    }
    static serializeHttpProfileRequests(updatedSince) {
      return _http.HttpProfiler._profile[$values][$where](dart.fn(e => {
        if (e == null) dart.nullFailed(I[420], 33, 12, "e");
        return updatedSince == null || dart.notNull(e.lastUpdateTime) >= dart.notNull(updatedSince);
      }, T$13._HttpProfileDataTobool()))[$map](T$2.MapOfString$dynamic(), dart.fn(e => {
        if (e == null) dart.nullFailed(I[420], 35, 15, "e");
        return e.toJson({ref: true});
      }, T$13._HttpProfileDataToMapOfString$dynamic()))[$toList]();
    }
  };
  (_http.HttpProfiler.new = function() {
    ;
  }).prototype = _http.HttpProfiler.prototype;
  dart.addRtiResources(_http.HttpProfiler, ["_http|HttpProfiler"]);
  dart.setStaticMethodSignature(_http.HttpProfiler, () => ['startRequest', 'getHttpProfileRequest', 'clear', 'serializeHttpProfileRequests']);
  dart.setLibraryUri(_http.HttpProfiler, I[416]);
  dart.setStaticFieldSignature(_http.HttpProfiler, () => ['_kType', '_profile']);
  dart.defineLazy(_http.HttpProfiler, {
    /*_http.HttpProfiler._kType*/get _kType() {
      return "HttpProfile";
    },
    /*_http.HttpProfiler._profile*/get _profile() {
      return new (G$.IdentityMapOfString$_HttpProfileData()).new();
    }
  }, false);
  _http._HttpProfileEvent = class _HttpProfileEvent extends core.Object {
    static ['_#new#tearOff'](name, $arguments) {
      if (name == null) dart.nullFailed(I[420], 41, 26, "name");
      return new _http._HttpProfileEvent.new(name, $arguments);
    }
    toJson() {
      return (() => {
        let t$361841 = new (G.IdentityMapOfString$dynamic()).new();
        t$361841[$_set]("timestamp", this.timestamp);
        t$361841[$_set]("event", this.name);
        if (this.arguments != null) t$361841[$_set]("arguments", this.arguments);
        return t$361841;
      })();
    }
  };
  (_http._HttpProfileEvent.new = function(name, $arguments) {
    if (name == null) dart.nullFailed(I[420], 41, 26, "name");
    this.timestamp = new core.DateTime.now().microsecondsSinceEpoch;
    this.name = name;
    this.arguments = $arguments;
    ;
  }).prototype = _http._HttpProfileEvent.prototype;
  dart.addRtiResources(_http._HttpProfileEvent, ["_http|_HttpProfileEvent"]);
  dart.setMethodSignature(_http._HttpProfileEvent, () => dart.global.Object.setPrototypeOf({toJson: T$2.VoidToMapOfString$dynamic()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpProfileEvent))));
  dart.setLibraryUri(_http._HttpProfileEvent, I[416]);
  dart.setFieldSignature(_http._HttpProfileEvent, () => dart.global.Object.setPrototypeOf({
    timestamp: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    name: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    arguments: {type: T$2.MapN(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpProfileEvent))));
  var ___HttpProfileData_id = dart.privateName(_http, "_#_HttpProfileData#id");
  var ___HttpProfileData_id_isSet = dart.privateName(_http, "_#_HttpProfileData#id#isSet");
  var ___HttpProfileData_requestStartTimestamp = dart.privateName(_http, "_#_HttpProfileData#requestStartTimestamp");
  var ___HttpProfileData_requestStartTimestamp_isSet = dart.privateName(_http, "_#_HttpProfileData#requestStartTimestamp#isSet");
  var ___HttpProfileData_requestEndTimestamp = dart.privateName(_http, "_#_HttpProfileData#requestEndTimestamp");
  var ___HttpProfileData_requestEndTimestamp_isSet = dart.privateName(_http, "_#_HttpProfileData#requestEndTimestamp#isSet");
  var ___HttpProfileData_responseStartTimestamp = dart.privateName(_http, "_#_HttpProfileData#responseStartTimestamp");
  var ___HttpProfileData_responseStartTimestamp_isSet = dart.privateName(_http, "_#_HttpProfileData#responseStartTimestamp#isSet");
  var ___HttpProfileData_responseEndTimestamp = dart.privateName(_http, "_#_HttpProfileData#responseEndTimestamp");
  var ___HttpProfileData_responseEndTimestamp_isSet = dart.privateName(_http, "_#_HttpProfileData#responseEndTimestamp#isSet");
  var _lastUpdateTime = dart.privateName(_http, "_lastUpdateTime");
  var ___HttpProfileData__responseTimeline = dart.privateName(_http, "_#_HttpProfileData#_responseTimeline");
  var ___HttpProfileData__responseTimeline_isSet = dart.privateName(_http, "_#_HttpProfileData#_responseTimeline#isSet");
  var _updated = dart.privateName(_http, "_updated");
  var _responseTimeline = dart.privateName(_http, "_responseTimeline");
  _http._HttpProfileData = class _HttpProfileData extends core.Object {
    static ['_#new#tearOff'](method, uri, parent) {
      if (method == null) dart.nullFailed(I[420], 56, 27, "method");
      if (uri == null) dart.nullFailed(I[420], 56, 40, "uri");
      return new _http._HttpProfileData.new(method, uri, parent);
    }
    requestEvent(name, opts) {
      if (name == null) dart.nullFailed(I[420], 74, 28, "name");
      let $arguments = opts && 'arguments' in opts ? opts.arguments : null;
      this[_timeline].instant(name, {arguments: $arguments});
      this.requestEvents[$add](new _http._HttpProfileEvent.new(name, $arguments));
      this[_updated]();
    }
    proxyEvent(proxy) {
      if (proxy == null) dart.nullFailed(I[420], 80, 26, "proxy");
      this.proxyDetails = (() => {
        let t$361842 = new (G.IdentityMapOfString$dynamic()).new();
        if (proxy.host != null) t$361842[$_set]("host", proxy.host);
        if (proxy.port != null) t$361842[$_set]("port", proxy.port);
        if (proxy.username != null) t$361842[$_set]("username", proxy.username);
        return t$361842;
      })();
      this[_timeline].instant("Establishing proxy tunnel", {arguments: new _js_helper.LinkedMap.from(["proxyDetails", this.proxyDetails])});
      this[_updated]();
    }
    appendRequestData(data) {
      if (data == null) dart.nullFailed(I[420], 92, 36, "data");
      this.requestBody[$addAll](data);
      this[_updated]();
    }
    formatHeaders(headers) {
      if (headers == null) dart.nullFailed(I[420], 97, 33, "headers");
      let newHeaders = new (G$.IdentityMapOfString$ListOfString()).new();
      headers.forEach(dart.fn((name, values) => {
        if (name == null) dart.nullFailed(I[420], 99, 22, "name");
        if (values == null) dart.nullFailed(I[420], 99, 28, "values");
        newHeaders[$_set](name, values);
      }, T$10.StringAndListOfStringTovoid()));
      return newHeaders;
    }
    formatConnectionInfo(connectionInfo) {
      return connectionInfo == null ? null : new _js_helper.LinkedMap.from(["localPort", connectionInfo.localPort, "remoteAddress", connectionInfo.remoteAddress.address, "remotePort", connectionInfo.remotePort]);
    }
    finishRequest(opts) {
      let request = opts && 'request' in opts ? opts.request : null;
      if (request == null) dart.nullFailed(I[420], 115, 32, "request");
      this.requestInProgress = false;
      this.requestEndTimestamp = new core.DateTime.now().microsecondsSinceEpoch;
      this.requestDetails = new (G.IdentityMapOfString$dynamic()).from(["headers", this.formatHeaders(request.headers), "connectionInfo", this.formatConnectionInfo(request.connectionInfo), "contentLength", request.contentLength, "cookies", (() => {
          let t$361843 = G.JSArrayOfString().of([]);
          for (let cookie of request.cookies)
            t$361843.push(dart.toString(cookie));
          return t$361843;
        })(), "followRedirects", request.followRedirects, "maxRedirects", request.maxRedirects, "method", request.method, "persistentConnection", request.persistentConnection, "uri", dart.toString(request.uri)]);
      this[_timeline].finish({arguments: this.requestDetails});
      this[_updated]();
    }
    startResponse(opts) {
      let response = opts && 'response' in opts ? opts.response : null;
      if (response == null) dart.nullFailed(I[420], 141, 51, "response");
      function formatRedirectInfo() {
        let redirects = G.JSArrayOfMapOfString$dynamic().of([]);
        for (let redirect of response.redirects) {
          redirects[$add](new (G.IdentityMapOfString$dynamic()).from(["location", dart.toString(redirect.location), "method", redirect.method, "statusCode", redirect.statusCode]));
        }
        return redirects;
      }
      dart.fn(formatRedirectInfo, T$13.VoidToListOfMapOfString$dynamic());
      this.responseDetails = new (G.IdentityMapOfString$dynamic()).from(["headers", this.formatHeaders(response.headers), "compressionState", dart.toString(response.compressionState), "connectionInfo", this.formatConnectionInfo(response.connectionInfo), "contentLength", response.contentLength, "cookies", (() => {
          let t$361844 = G.JSArrayOfString().of([]);
          for (let cookie of response.cookies)
            t$361844.push(dart.toString(cookie));
          return t$361844;
        })(), "isRedirect", response.isRedirect, "persistentConnection", response.persistentConnection, "reasonPhrase", response.reasonPhrase, "redirects", formatRedirectInfo(), "statusCode", response.statusCode]);
      if (!!dart.test(this.requestInProgress)) dart.assertFailed(null, I[420], 169, 12, "!requestInProgress");
      this.responseInProgress = true;
      this[_responseTimeline] = new developer.TimelineTask.new({parent: this[_timeline], filterKey: "HTTP/client"});
      this.responseStartTimestamp = new core.DateTime.now().microsecondsSinceEpoch;
      this[_responseTimeline].start("HTTP CLIENT response of " + dart.str(this.method), {arguments: (() => {
          let t$361845 = new _js_helper.LinkedMap.new();
          t$361845[$_set]("requestUri", dart.toString(this.uri));
          t$361845[$addAll](dart.nullCheck(this.responseDetails));
          return t$361845;
        })()});
      this[_updated]();
    }
    finishRequestWithError(error) {
      if (error == null) dart.nullFailed(I[420], 187, 38, "error");
      this.requestInProgress = false;
      this.requestEndTimestamp = new core.DateTime.now().microsecondsSinceEpoch;
      this.requestError = error;
      this[_timeline].finish({arguments: new _js_helper.LinkedMap.from(["error", error])});
      this[_updated]();
    }
    finishResponse() {
      if (this.responseInProgress !== true) return;
      this.responseInProgress = false;
      this.responseEndTimestamp = new core.DateTime.now().microsecondsSinceEpoch;
      this.requestEvent("Content Download");
      this[_responseTimeline].finish();
      this[_updated]();
    }
    finishResponseWithError(error) {
      if (error == null) dart.nullFailed(I[420], 208, 39, "error");
      if (!dart.nullCheck(this.responseInProgress)) return;
      this.responseInProgress = false;
      this.responseEndTimestamp = new core.DateTime.now().microsecondsSinceEpoch;
      this.responseError = error;
      this[_responseTimeline].finish({arguments: new _js_helper.LinkedMap.from(["error", error])});
      this[_updated]();
    }
    appendResponseData(data) {
      if (data == null) dart.nullFailed(I[420], 221, 37, "data");
      this.responseBody[$addAll](data);
      this[_updated]();
    }
    toJson(opts) {
      let ref = opts && 'ref' in opts ? opts.ref : null;
      if (ref == null) dart.nullFailed(I[420], 226, 46, "ref");
      return (() => {
        let t$361846 = new (G.IdentityMapOfString$dynamic()).new();
        t$361846[$_set]("type", (dart.test(ref) ? "@" : "") + "HttpProfileRequest");
        t$361846[$_set]("id", this.id);
        t$361846[$_set]("isolateId", _http._HttpProfileData.isolateId);
        t$361846[$_set]("method", this.method);
        t$361846[$_set]("uri", dart.toString(this.uri));
        t$361846[$_set]("events", (() => {
          let t$361847 = G.JSArrayOfMapOfString$dynamic().of([]);
          for (let event of this.requestEvents)
            t$361847.push(event.toJson());
          return t$361847;
        })());
        t$361846[$_set]("startTime", this.requestStartTimestamp);
        if (!dart.test(this.requestInProgress)) t$361846[$_set]("endTime", this.requestEndTimestamp);
        if (!dart.test(this.requestInProgress)) t$361846[$_set]("request", (() => {
          let t$361848 = new (G.IdentityMapOfString$dynamic()).new();
          if (this.proxyDetails != null) t$361848[$_set]("proxyDetails", dart.nullCheck(this.proxyDetails));
          if (this.requestDetails != null) t$361848[$addAll](dart.nullCheck(this.requestDetails));
          if (this.requestError != null) t$361848[$_set]("error", this.requestError);
          return t$361848;
        })());
        if (this.responseInProgress != null) t$361846[$_set]("response", (() => {
          let t$361849 = new (G.IdentityMapOfString$dynamic()).new();
          t$361849[$_set]("startTime", this.responseStartTimestamp);
          t$361849[$addAll](dart.nullCheck(this.responseDetails));
          if (!dart.nullCheck(this.responseInProgress)) t$361849[$_set]("endTime", this.responseEndTimestamp);
          if (this.responseError != null) t$361849[$_set]("error", this.responseError);
          return t$361849;
        })());
        if (!dart.test(ref)) t$361846[$addAll]((() => {
          let t$361850 = new (G.IdentityMapOfString$dynamic()).new();
          if (!dart.test(this.requestInProgress)) t$361850[$_set]("requestBody", this.requestBody);
          if (this.responseInProgress != null) t$361850[$_set]("responseBody", this.responseBody);
          return t$361850;
        })());
        return t$361846;
      })();
    }
    [_updated]() {
      return this[_lastUpdateTime] = new core.DateTime.now().microsecondsSinceEpoch;
    }
    get id() {
      let t$361851;
      return dart.test(this[___HttpProfileData_id_isSet]) ? (t$361851 = this[___HttpProfileData_id], t$361851) : dart.throw(new _internal.LateError.fieldNI("id"));
    }
    set id(id$35param) {
      if (id$35param == null) dart.nullFailed(I[420], 265, 21, "id#param");
      if (dart.test(this[___HttpProfileData_id_isSet]))
        dart.throw(new _internal.LateError.fieldAI("id"));
      else {
        this[___HttpProfileData_id_isSet] = true;
        this[___HttpProfileData_id] = id$35param;
      }
    }
    get requestStartTimestamp() {
      let t$361851;
      return dart.test(this[___HttpProfileData_requestStartTimestamp_isSet]) ? (t$361851 = this[___HttpProfileData_requestStartTimestamp], t$361851) : dart.throw(new _internal.LateError.fieldNI("requestStartTimestamp"));
    }
    set requestStartTimestamp(requestStartTimestamp$35param) {
      if (requestStartTimestamp$35param == null) dart.nullFailed(I[420], 269, 18, "requestStartTimestamp#param");
      if (dart.test(this[___HttpProfileData_requestStartTimestamp_isSet]))
        dart.throw(new _internal.LateError.fieldAI("requestStartTimestamp"));
      else {
        this[___HttpProfileData_requestStartTimestamp_isSet] = true;
        this[___HttpProfileData_requestStartTimestamp] = requestStartTimestamp$35param;
      }
    }
    get requestEndTimestamp() {
      let t$361851;
      return dart.test(this[___HttpProfileData_requestEndTimestamp_isSet]) ? (t$361851 = this[___HttpProfileData_requestEndTimestamp], t$361851) : dart.throw(new _internal.LateError.fieldNI("requestEndTimestamp"));
    }
    set requestEndTimestamp(requestEndTimestamp$35param) {
      if (requestEndTimestamp$35param == null) dart.nullFailed(I[420], 270, 18, "requestEndTimestamp#param");
      if (dart.test(this[___HttpProfileData_requestEndTimestamp_isSet]))
        dart.throw(new _internal.LateError.fieldAI("requestEndTimestamp"));
      else {
        this[___HttpProfileData_requestEndTimestamp_isSet] = true;
        this[___HttpProfileData_requestEndTimestamp] = requestEndTimestamp$35param;
      }
    }
    get responseStartTimestamp() {
      let t$361851;
      return dart.test(this[___HttpProfileData_responseStartTimestamp_isSet]) ? (t$361851 = this[___HttpProfileData_responseStartTimestamp], t$361851) : dart.throw(new _internal.LateError.fieldNI("responseStartTimestamp"));
    }
    set responseStartTimestamp(responseStartTimestamp$35param) {
      if (responseStartTimestamp$35param == null) dart.nullFailed(I[420], 277, 18, "responseStartTimestamp#param");
      if (dart.test(this[___HttpProfileData_responseStartTimestamp_isSet]))
        dart.throw(new _internal.LateError.fieldAI("responseStartTimestamp"));
      else {
        this[___HttpProfileData_responseStartTimestamp_isSet] = true;
        this[___HttpProfileData_responseStartTimestamp] = responseStartTimestamp$35param;
      }
    }
    get responseEndTimestamp() {
      let t$361851;
      return dart.test(this[___HttpProfileData_responseEndTimestamp_isSet]) ? (t$361851 = this[___HttpProfileData_responseEndTimestamp], t$361851) : dart.throw(new _internal.LateError.fieldNI("responseEndTimestamp"));
    }
    set responseEndTimestamp(responseEndTimestamp$35param) {
      if (responseEndTimestamp$35param == null) dart.nullFailed(I[420], 278, 18, "responseEndTimestamp#param");
      if (dart.test(this[___HttpProfileData_responseEndTimestamp_isSet]))
        dart.throw(new _internal.LateError.fieldAI("responseEndTimestamp"));
      else {
        this[___HttpProfileData_responseEndTimestamp_isSet] = true;
        this[___HttpProfileData_responseEndTimestamp] = responseEndTimestamp$35param;
      }
    }
    get lastUpdateTime() {
      return this[_lastUpdateTime];
    }
    get [_responseTimeline]() {
      let t$361851;
      return dart.test(this[___HttpProfileData__responseTimeline_isSet]) ? (t$361851 = this[___HttpProfileData__responseTimeline], t$361851) : dart.throw(new _internal.LateError.fieldNI("_responseTimeline"));
    }
    set [_responseTimeline](_responseTimeline$35param) {
      if (_responseTimeline$35param == null) dart.nullFailed(I[420], 287, 21, "_responseTimeline#param");
      this[___HttpProfileData__responseTimeline_isSet] = true;
      this[___HttpProfileData__responseTimeline] = _responseTimeline$35param;
    }
  };
  (_http._HttpProfileData.new = function(method, uri, parent) {
    if (method == null) dart.nullFailed(I[420], 56, 27, "method");
    if (uri == null) dart.nullFailed(I[420], 56, 40, "uri");
    this.requestInProgress = true;
    this.responseInProgress = null;
    this[___HttpProfileData_id] = null;
    this[___HttpProfileData_id_isSet] = false;
    this[___HttpProfileData_requestStartTimestamp] = null;
    this[___HttpProfileData_requestStartTimestamp_isSet] = false;
    this[___HttpProfileData_requestEndTimestamp] = null;
    this[___HttpProfileData_requestEndTimestamp_isSet] = false;
    this.requestDetails = null;
    this.proxyDetails = null;
    this.requestBody = G.JSArrayOfint().of([]);
    this.requestError = null;
    this.requestEvents = G$.JSArrayOf_HttpProfileEvent().of([]);
    this[___HttpProfileData_responseStartTimestamp] = null;
    this[___HttpProfileData_responseStartTimestamp_isSet] = false;
    this[___HttpProfileData_responseEndTimestamp] = null;
    this[___HttpProfileData_responseEndTimestamp_isSet] = false;
    this.responseDetails = null;
    this.responseBody = G.JSArrayOfint().of([]);
    this.responseError = null;
    this[_lastUpdateTime] = 0;
    this[___HttpProfileData__responseTimeline] = null;
    this[___HttpProfileData__responseTimeline_isSet] = false;
    this.uri = uri;
    this.method = method[$toUpperCase]();
    this[_timeline] = new developer.TimelineTask.new({filterKey: "HTTP/client", parent: parent});
    this.id = dart.toString(this[_timeline].pass());
    this.requestInProgress = true;
    this.requestStartTimestamp = new core.DateTime.now().microsecondsSinceEpoch;
    this[_timeline].start("HTTP CLIENT " + dart.str(method), {arguments: new _js_helper.LinkedMap.from(["method", method[$toUpperCase](), "uri", dart.toString(this.uri)])});
    this[_updated]();
  }).prototype = _http._HttpProfileData.prototype;
  dart.addRtiResources(_http._HttpProfileData, ["_http|_HttpProfileData"]);
  dart.setMethodSignature(_http._HttpProfileData, () => dart.global.Object.setPrototypeOf({
    requestEvent: T$2.String__Tovoid$1(),
    proxyEvent: T$13._ProxyTovoid(),
    appendRequestData: T$7.Uint8ListTovoid(),
    formatHeaders: T$13.HttpHeadersToMap(),
    formatConnectionInfo: T$13.HttpConnectionInfoNToMapN(),
    finishRequest: T$13.__Tovoid$28(),
    startResponse: T$13.__Tovoid$29(),
    finishRequestWithError: T$.StringTovoid(),
    finishResponse: T$.VoidTovoid(),
    finishResponseWithError: T$.StringTovoid(),
    appendResponseData: T$7.Uint8ListTovoid(),
    toJson: T$13.__ToMapOfString$dynamic(),
    [_updated]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpProfileData))));
  dart.setGetterSignature(_http._HttpProfileData, () => dart.global.Object.setPrototypeOf({
    id: T$.String(),
    requestStartTimestamp: T$.int(),
    requestEndTimestamp: T$.int(),
    responseStartTimestamp: T$.int(),
    responseEndTimestamp: T$.int(),
    lastUpdateTime: T$.int(),
    [_responseTimeline]: T$13.TimelineTask()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpProfileData))));
  dart.setSetterSignature(_http._HttpProfileData, () => dart.global.Object.setPrototypeOf({
    id: T$.String(),
    requestStartTimestamp: T$.int(),
    requestEndTimestamp: T$.int(),
    responseStartTimestamp: T$.int(),
    responseEndTimestamp: T$.int(),
    [_responseTimeline]: T$13.TimelineTask()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpProfileData))));
  dart.setLibraryUri(_http._HttpProfileData, I[416]);
  dart.setFieldSignature(_http._HttpProfileData, () => dart.global.Object.setPrototypeOf({
    requestInProgress: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    responseInProgress: {type: T$.boolN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___HttpProfileData_id]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___HttpProfileData_id_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    method: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    uri: {type: T$2.Uri(), isConst: false, isFinal: true, libraryUri: I[11]},
    [___HttpProfileData_requestStartTimestamp]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___HttpProfileData_requestStartTimestamp_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___HttpProfileData_requestEndTimestamp]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___HttpProfileData_requestEndTimestamp_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    requestDetails: {type: T$7.MapNOfString$dynamic(), isConst: false, isFinal: false, libraryUri: I[11]},
    proxyDetails: {type: T$7.MapNOfString$dynamic(), isConst: false, isFinal: false, libraryUri: I[11]},
    requestBody: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    requestError: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    requestEvents: {type: T$13.ListOf_HttpProfileEvent(), isConst: false, isFinal: true, libraryUri: I[11]},
    [___HttpProfileData_responseStartTimestamp]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___HttpProfileData_responseStartTimestamp_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___HttpProfileData_responseEndTimestamp]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [___HttpProfileData_responseEndTimestamp_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    responseDetails: {type: T$7.MapNOfString$dynamic(), isConst: false, isFinal: false, libraryUri: I[11]},
    responseBody: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    responseError: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lastUpdateTime]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_timeline]: {type: T$13.TimelineTask(), isConst: false, isFinal: true, libraryUri: I[114]},
    [___HttpProfileData__responseTimeline]: {type: T$2.TimelineTaskN(), isConst: false, isFinal: false, libraryUri: I[114]},
    [___HttpProfileData__responseTimeline_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpProfileData))));
  dart.setStaticFieldSignature(_http._HttpProfileData, () => ['isolateId']);
  dart.defineLazy(_http._HttpProfileData, {
    /*_http._HttpProfileData.isolateId*/get isolateId() {
      return dart.nullCheck(developer.Service.getIsolateID(isolate.Isolate.current));
    }
  }, false);
  var __serviceId$ = dart.privateName(_http, "_ServiceObject.__serviceId");
  var __serviceId$0 = dart.privateName(_http, "__serviceId");
  var _serviceId$ = dart.privateName(_http, "_serviceId");
  var _serviceTypePath$ = dart.privateName(_http, "_serviceTypePath");
  var _servicePath$ = dart.privateName(_http, "_servicePath");
  var _serviceTypeName$ = dart.privateName(_http, "_serviceTypeName");
  var _serviceType$ = dart.privateName(_http, "_serviceType");
  _http._ServiceObject = class _ServiceObject extends core.Object {};
  _http._ServiceObject[dart.mixinOn] = Object => class _ServiceObject extends Object {
    get [__serviceId$0]() {
      return this[__serviceId$];
    }
    set [__serviceId$0](value) {
      if (value == null) dart.nullFailed(I[420], 294, 7, "__serviceId");
      this[__serviceId$] = value;
    }
    get [_serviceId$]() {
      let t$361851;
      if (this[__serviceId$0] === 0) this[__serviceId$0] = (t$361851 = _http._nextServiceId, _http._nextServiceId = dart.notNull(t$361851) + 1, t$361851);
      return this[__serviceId$0];
    }
    get [_servicePath$]() {
      return dart.str(this[_serviceTypePath$]) + "/" + dart.str(this[_serviceId$]);
    }
    [_serviceType$](ref) {
      if (ref == null) dart.nullFailed(I[420], 306, 28, "ref");
      if (dart.test(ref)) return "@" + dart.str(this[_serviceTypeName$]);
      return this[_serviceTypeName$];
    }
  };
  (_http._ServiceObject[dart.mixinNew] = function() {
    this[__serviceId$] = 0;
  }).prototype = _http._ServiceObject.prototype;
  dart.addRtiResources(_http._ServiceObject, ["_http|_ServiceObject"]);
  dart.setMethodSignature(_http._ServiceObject, () => dart.global.Object.setPrototypeOf({[_serviceType$]: T$.boolToString()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http._ServiceObject))));
  dart.setGetterSignature(_http._ServiceObject, () => dart.global.Object.setPrototypeOf({
    [_serviceId$]: T$.int(),
    [_servicePath$]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._ServiceObject))));
  dart.setLibraryUri(_http._ServiceObject, I[416]);
  dart.setFieldSignature(_http._ServiceObject, () => dart.global.Object.setPrototypeOf({[__serviceId$0]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._ServiceObject))));
  var _length$3 = dart.privateName(_http, "_length");
  var _buffer$2 = dart.privateName(_http, "_buffer");
  var _grow$1 = dart.privateName(_http, "_grow");
  _http._CopyingBytesBuilder = class _CopyingBytesBuilder extends core.Object {
    static ['_#new#tearOff'](initialCapacity = 0) {
      if (initialCapacity == null) dart.nullFailed(I[420], 321, 29, "initialCapacity");
      return new _http._CopyingBytesBuilder.new(initialCapacity);
    }
    add(bytes) {
      if (bytes == null) dart.nullFailed(I[420], 326, 22, "bytes");
      let bytesLength = bytes[$length];
      if (bytesLength === 0) return;
      let required = dart.notNull(this[_length$3]) + dart.notNull(bytesLength);
      if (dart.notNull(this[_buffer$2][$length]) < required) {
        this[_grow$1](required);
      }
      if (!(dart.notNull(this[_buffer$2][$length]) >= required)) dart.assertFailed(null, I[420], 333, 12, "_buffer.length >= required");
      if (T$.Uint8List()[_is](bytes)) {
        this[_buffer$2][$setRange](this[_length$3], required, bytes);
      } else {
        for (let i = 0; i < dart.notNull(bytesLength); i = i + 1) {
          this[_buffer$2][$_set](dart.notNull(this[_length$3]) + i, bytes[$_get](i));
        }
      }
      this[_length$3] = required;
    }
    addByte(byte) {
      if (byte == null) dart.nullFailed(I[420], 344, 20, "byte");
      if (this[_buffer$2][$length] == this[_length$3]) {
        this[_grow$1](this[_length$3]);
      }
      if (!(dart.notNull(this[_buffer$2][$length]) > dart.notNull(this[_length$3]))) dart.assertFailed(null, I[420], 350, 12, "_buffer.length > _length");
      this[_buffer$2][$_set](this[_length$3], byte);
      this[_length$3] = dart.notNull(this[_length$3]) + 1;
    }
    [_grow$1](required) {
      if (required == null) dart.nullFailed(I[420], 355, 18, "required");
      let newSize = dart.notNull(required) * 2;
      if (dart.notNull(newSize) < 1024) {
        newSize = 1024;
      } else {
        newSize = _http._CopyingBytesBuilder._pow2roundup(newSize);
      }
      let newBuffer = _native_typed_data.NativeUint8List.new(newSize);
      newBuffer[$setRange](0, this[_buffer$2][$length], this[_buffer$2]);
      this[_buffer$2] = newBuffer;
    }
    takeBytes() {
      if (this[_length$3] === 0) return _http._CopyingBytesBuilder._emptyList;
      let buffer = typed_data.Uint8List.view(this[_buffer$2][$buffer], this[_buffer$2][$offsetInBytes], this[_length$3]);
      this.clear();
      return buffer;
    }
    toBytes() {
      if (this[_length$3] === 0) return _http._CopyingBytesBuilder._emptyList;
      return _native_typed_data.NativeUint8List.fromList(typed_data.Uint8List.view(this[_buffer$2][$buffer], this[_buffer$2][$offsetInBytes], this[_length$3]));
    }
    get length() {
      return this[_length$3];
    }
    get isEmpty() {
      return this[_length$3] === 0;
    }
    get isNotEmpty() {
      return this[_length$3] !== 0;
    }
    clear() {
      this[_length$3] = 0;
      this[_buffer$2] = _http._CopyingBytesBuilder._emptyList;
    }
    static _pow2roundup(x) {
      if (x == null) dart.nullFailed(I[420], 393, 31, "x");
      if (!(dart.notNull(x) > 0)) dart.assertFailed(null, I[420], 394, 12, "x > 0");
      x = dart.notNull(x) - 1;
      x = (dart.notNull(x) | x[$rightShift](1)) >>> 0;
      x = (dart.notNull(x) | x[$rightShift](2)) >>> 0;
      x = (dart.notNull(x) | x[$rightShift](4)) >>> 0;
      x = (dart.notNull(x) | x[$rightShift](8)) >>> 0;
      x = (dart.notNull(x) | x[$rightShift](16)) >>> 0;
      return dart.notNull(x) + 1;
    }
  };
  (_http._CopyingBytesBuilder.new = function(initialCapacity = 0) {
    if (initialCapacity == null) dart.nullFailed(I[420], 321, 29, "initialCapacity");
    this[_length$3] = 0;
    this[_buffer$2] = dart.notNull(initialCapacity) <= 0 ? _http._CopyingBytesBuilder._emptyList : _native_typed_data.NativeUint8List.new(_http._CopyingBytesBuilder._pow2roundup(initialCapacity));
    ;
  }).prototype = _http._CopyingBytesBuilder.prototype;
  dart.addRtiResources(_http._CopyingBytesBuilder, ["_http|_CopyingBytesBuilder", "_internal|BytesBuilder"]);
  dart.setMethodSignature(_http._CopyingBytesBuilder, () => dart.global.Object.setPrototypeOf({
    add: T$.ListOfintTovoid(),
    addByte: T$.intTovoid(),
    [_grow$1]: T$.intTovoid(),
    takeBytes: T$.VoidToUint8List(),
    toBytes: T$.VoidToUint8List(),
    clear: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._CopyingBytesBuilder))));
  dart.setStaticMethodSignature(_http._CopyingBytesBuilder, () => ['_pow2roundup']);
  dart.setGetterSignature(_http._CopyingBytesBuilder, () => dart.global.Object.setPrototypeOf({
    length: T$.int(),
    isEmpty: T$.bool(),
    isNotEmpty: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._CopyingBytesBuilder))));
  dart.setLibraryUri(_http._CopyingBytesBuilder, I[416]);
  dart.setFieldSignature(_http._CopyingBytesBuilder, () => dart.global.Object.setPrototypeOf({
    [_length$3]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_buffer$2]: {type: T$.Uint8List(), isConst: false, isFinal: false, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._CopyingBytesBuilder))));
  dart.setStaticFieldSignature(_http._CopyingBytesBuilder, () => ['_INIT_SIZE', '_emptyList']);
  dart.defineLazy(_http._CopyingBytesBuilder, {
    /*_http._CopyingBytesBuilder._INIT_SIZE*/get _INIT_SIZE() {
      return 1024;
    },
    /*_http._CopyingBytesBuilder._emptyList*/get _emptyList() {
      return _native_typed_data.NativeUint8List.new(0);
    }
  }, false);
  var _dataCompleter = dart.privateName(_http, "_dataCompleter");
  var _transferLength$ = dart.privateName(_http, "_transferLength");
  var _stream$1 = dart.privateName(_http, "_stream");
  _http._HttpIncoming = class _HttpIncoming extends G$.StreamOfUint8List() {
    get transferLength() {
      return this[_transferLength$];
    }
    static ['_#new#tearOff'](headers, _transferLength, _stream) {
      if (headers == null) dart.nullFailed(I[420], 436, 22, "headers");
      if (_transferLength == null) dart.nullFailed(I[420], 436, 36, "_transferLength");
      if (_stream == null) dart.nullFailed(I[420], 436, 58, "_stream");
      return new _http._HttpIncoming.new(headers, _transferLength, _stream);
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      this.hasSubscriber = true;
      return this[_stream$1].handleError(dart.fn(error => {
        dart.throw(new _http.HttpException.new(T$13.HttpException()[_as](error).message, {uri: this.uri}));
      }, T$7.dynamicToNever()), {test: dart.fn(error => T$13.HttpException()[_is](error), T$.dynamicTobool())}).listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    get dataDone() {
      return this[_dataCompleter].future;
    }
    close(closing) {
      if (closing == null) dart.nullFailed(I[420], 450, 19, "closing");
      this.fullBodyRead = true;
      this.hasSubscriber = true;
      this[_dataCompleter].complete(closing);
    }
  };
  (_http._HttpIncoming.new = function(headers, _transferLength, _stream) {
    if (headers == null) dart.nullFailed(I[420], 436, 22, "headers");
    if (_transferLength == null) dart.nullFailed(I[420], 436, 36, "_transferLength");
    if (_stream == null) dart.nullFailed(I[420], 436, 58, "_stream");
    this[_dataCompleter] = G$.CompleterOfbool().new();
    this.fullBodyRead = false;
    this.upgraded = false;
    this.statusCode = null;
    this.reasonPhrase = null;
    this.method = null;
    this.uri = null;
    this.hasSubscriber = false;
    this.headers = headers;
    this[_transferLength$] = _transferLength;
    this[_stream$1] = _stream;
    this.$ti = this.$ti || T$13._HttpIncoming();
    dart.global.Object.getPrototypeOf(_http._HttpIncoming).new.call(this);
    ;
  }).prototype = _http._HttpIncoming.prototype;
  dart.addRtiResources(_http._HttpIncoming, ["_http|_HttpIncoming"]);
  dart.setMethodSignature(_http._HttpIncoming, () => dart.global.Object.setPrototypeOf({
    listen: T$2.Fn__ToStreamSubscriptionOfUint8List(),
    close: T$1.boolTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpIncoming))));
  dart.setGetterSignature(_http._HttpIncoming, () => dart.global.Object.setPrototypeOf({
    transferLength: T$.int(),
    dataDone: T$.FutureOfbool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpIncoming))));
  dart.setLibraryUri(_http._HttpIncoming, I[416]);
  dart.setFieldSignature(_http._HttpIncoming, () => dart.global.Object.setPrototypeOf({
    [_transferLength$]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_dataCompleter]: {type: T$13.CompleterOfbool(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_stream$1]: {type: T$13.StreamOfUint8List(), isConst: false, isFinal: true, libraryUri: I[39]},
    fullBodyRead: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    headers: {type: T$13._HttpHeaders(), isConst: false, isFinal: true, libraryUri: I[416]},
    upgraded: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    statusCode: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    reasonPhrase: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    method: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    uri: {type: T$2.UriN(), isConst: false, isFinal: false, libraryUri: I[11]},
    hasSubscriber: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpIncoming))));
  var _cookies = dart.privateName(_http, "_cookies");
  var _incoming$ = dart.privateName(_http, "_incoming");
  _http._HttpInboundMessageListInt = class _HttpInboundMessageListInt extends G.StreamOfListOfint() {
    get cookies() {
      let t$361851;
      t$361851 = this[_cookies];
      return t$361851 == null ? this[_cookies] = this.headers[_parseCookies]() : t$361851;
    }
    get headers() {
      return this[_incoming$].headers;
    }
    get protocolVersion() {
      return this.headers.protocolVersion;
    }
    get contentLength() {
      return this.headers.contentLength;
    }
    get persistentConnection() {
      return this.headers.persistentConnection;
    }
  };
  (_http._HttpInboundMessageListInt.new = function(_incoming) {
    if (_incoming == null) dart.nullFailed(I[420], 461, 35, "_incoming");
    this[_cookies] = null;
    this[_incoming$] = _incoming;
    this.$ti = this.$ti || T$13._HttpInboundMessageListInt();
    dart.global.Object.getPrototypeOf(_http._HttpInboundMessageListInt).new.call(this);
    ;
  }).prototype = _http._HttpInboundMessageListInt.prototype;
  dart.addRtiResources(_http._HttpInboundMessageListInt, ["_http|_HttpInboundMessageListInt"]);
  dart.setGetterSignature(_http._HttpInboundMessageListInt, () => dart.global.Object.setPrototypeOf({
    cookies: T$13.ListOfCookie(),
    headers: T$13._HttpHeaders(),
    protocolVersion: T$.String(),
    contentLength: T$.int(),
    persistentConnection: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpInboundMessageListInt))));
  dart.setLibraryUri(_http._HttpInboundMessageListInt, I[416]);
  dart.setFieldSignature(_http._HttpInboundMessageListInt, () => dart.global.Object.setPrototypeOf({
    [_incoming$]: {type: T$13._HttpIncoming(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_cookies]: {type: T$13.ListNOfCookie(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpInboundMessageListInt))));
  _http._HttpInboundMessage = class _HttpInboundMessage extends G$.StreamOfUint8List() {
    get cookies() {
      let t$361851;
      t$361851 = this[_cookies];
      return t$361851 == null ? this[_cookies] = this.headers[_parseCookies]() : t$361851;
    }
    get headers() {
      return this[_incoming$].headers;
    }
    get protocolVersion() {
      return this.headers.protocolVersion;
    }
    get contentLength() {
      return this.headers.contentLength;
    }
    get persistentConnection() {
      return this.headers.persistentConnection;
    }
  };
  (_http._HttpInboundMessage.new = function(_incoming) {
    if (_incoming == null) dart.nullFailed(I[420], 475, 28, "_incoming");
    this[_cookies] = null;
    this[_incoming$] = _incoming;
    this.$ti = this.$ti || T$13._HttpInboundMessage();
    dart.global.Object.getPrototypeOf(_http._HttpInboundMessage).new.call(this);
    ;
  }).prototype = _http._HttpInboundMessage.prototype;
  dart.addRtiResources(_http._HttpInboundMessage, ["_http|_HttpInboundMessage"]);
  dart.setGetterSignature(_http._HttpInboundMessage, () => dart.global.Object.setPrototypeOf({
    cookies: T$13.ListOfCookie(),
    headers: T$13._HttpHeaders(),
    protocolVersion: T$.String(),
    contentLength: T$.int(),
    persistentConnection: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpInboundMessage))));
  dart.setLibraryUri(_http._HttpInboundMessage, I[416]);
  dart.setFieldSignature(_http._HttpInboundMessage, () => dart.global.Object.setPrototypeOf({
    [_incoming$]: {type: T$13._HttpIncoming(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_cookies]: {type: T$13.ListNOfCookie(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpInboundMessage))));
  var _session = dart.privateName(_http, "_session");
  var _requestedUri = dart.privateName(_http, "_requestedUri");
  var _httpServer$ = dart.privateName(_http, "_httpServer");
  var _httpConnection$ = dart.privateName(_http, "_httpConnection");
  var _sessionManagerInstance = dart.privateName(_http, "_sessionManagerInstance");
  var _sessionManager$ = dart.privateName(_http, "_sessionManager");
  var _markSeen = dart.privateName(_http, "_markSeen");
  var _socket$0 = dart.privateName(_http, "_socket");
  var _destroyed = dart.privateName(_http, "_destroyed");
  _http._HttpRequest = class _HttpRequest extends _http._HttpInboundMessage {
    static ['_#new#tearOff'](response, _incoming, _httpServer, _httpConnection) {
      if (response == null) dart.nullFailed(I[420], 496, 21, "response");
      if (_incoming == null) dart.nullFailed(I[420], 496, 45, "_incoming");
      if (_httpServer == null) dart.nullFailed(I[420], 496, 61, "_httpServer");
      if (_httpConnection == null) dart.nullFailed(I[420], 497, 12, "_httpConnection");
      return new _http._HttpRequest.new(response, _incoming, _httpServer, _httpConnection);
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      return this[_incoming$].listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    get uri() {
      return dart.nullCheck(this[_incoming$].uri);
    }
    get requestedUri() {
      let requestedUri = this[_requestedUri];
      if (requestedUri != null) return requestedUri;
      if (dart.test(this.uri.hasScheme)) {
        return this[_requestedUri] = this.uri;
      }
      let proto = this.headers._get("x-forwarded-proto");
      let scheme = proto != null ? proto[$first] : T$3.SecureSocket()[_is](this[_httpConnection$][_socket$0]) ? "https" : "http";
      let hostList = this.headers._get("x-forwarded-host");
      let host = null;
      if (hostList != null) {
        host = hostList[$first];
      } else {
        hostList = this.headers._get("host");
        if (hostList != null) {
          host = hostList[$first];
        } else {
          host = dart.str(this[_httpServer$].address.host) + ":" + dart.str(this[_httpServer$].port);
        }
      }
      return this[_requestedUri] = core.Uri.parse(dart.str(scheme) + "://" + dart.str(host) + dart.str(this.uri));
    }
    get method() {
      return dart.nullCheck(this[_incoming$].method);
    }
    get session() {
      let session = this[_session];
      if (session != null && !dart.test(session[_destroyed])) {
        return session;
      }
      return this[_session] = this[_httpServer$][_sessionManager$].createSession();
    }
    get connectionInfo() {
      return this[_httpConnection$].connectionInfo;
    }
    get certificate() {
      let socket = this[_httpConnection$][_socket$0];
      if (T$3.SecureSocket()[_is](socket)) return socket.peerCertificate;
      return null;
    }
  };
  (_http._HttpRequest.new = function(response, _incoming, _httpServer, _httpConnection) {
    let t$361851;
    if (response == null) dart.nullFailed(I[420], 496, 21, "response");
    if (_incoming == null) dart.nullFailed(I[420], 496, 45, "_incoming");
    if (_httpServer == null) dart.nullFailed(I[420], 496, 61, "_httpServer");
    if (_httpConnection == null) dart.nullFailed(I[420], 497, 12, "_httpConnection");
    this[_session] = null;
    this[_requestedUri] = null;
    this.response = response;
    this[_httpServer$] = _httpServer;
    this[_httpConnection$] = _httpConnection;
    this.$ti = this.$ti || T$13._HttpRequest();
    dart.global.Object.getPrototypeOf(_http._HttpRequest).new.call(this, _incoming);
    if (this.headers.protocolVersion === "1.1") {
      t$361851 = this.response.headers;
      (() => {
        t$361851.chunkedTransferEncoding = true;
        t$361851.persistentConnection = this.headers.persistentConnection;
        return t$361851;
      })();
    }
    if (this[_httpServer$][_sessionManagerInstance] != null) {
      let sessionIds = this.cookies[$where](dart.fn(cookie => {
        if (cookie == null) dart.nullFailed(I[420], 508, 19, "cookie");
        return cookie.name[$toUpperCase]() === "DARTSESSID";
      }, T$13.CookieTobool()))[$map](T$.String(), dart.fn(cookie => {
        if (cookie == null) dart.nullFailed(I[420], 509, 25, "cookie");
        return cookie.value;
      }, T$13.CookieToString()));
      for (let sessionId of sessionIds) {
        let session = this[_httpServer$][_sessionManager$].getSession(sessionId);
        this[_session] = session;
        if (session != null) {
          session[_markSeen]();
          break;
        }
      }
    }
  }).prototype = _http._HttpRequest.prototype;
  dart.addRtiResources(_http._HttpRequest, ["_http|_HttpRequest", "_http|HttpRequest", "async|Stream"]);
  dart.setMethodSignature(_http._HttpRequest, () => dart.global.Object.setPrototypeOf({listen: T$2.Fn__ToStreamSubscriptionOfUint8List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpRequest))));
  dart.setGetterSignature(_http._HttpRequest, () => dart.global.Object.setPrototypeOf({
    uri: T$2.Uri(),
    requestedUri: T$2.Uri(),
    method: T$.String(),
    session: T$13.HttpSession(),
    connectionInfo: T$13.HttpConnectionInfoN(),
    certificate: T$3.X509CertificateN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpRequest))));
  dart.setLibraryUri(_http._HttpRequest, I[416]);
  dart.setFieldSignature(_http._HttpRequest, () => dart.global.Object.setPrototypeOf({
    response: {type: T$13.HttpResponse(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_httpServer$]: {type: T$13._HttpServer(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_httpConnection$]: {type: T$13._HttpConnection(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_session]: {type: T$13._HttpSessionN(), isConst: false, isFinal: false, libraryUri: I[416]},
    [_requestedUri]: {type: T$2.UriN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpRequest))));
  var _httpRequest$ = dart.privateName(_http, "_httpRequest");
  var _httpClient$ = dart.privateName(_http, "_httpClient");
  var _profileData$ = dart.privateName(_http, "_profileData");
  var _responseRedirects = dart.privateName(_http, "_responseRedirects");
  var _httpClientConnection$ = dart.privateName(_http, "_httpClientConnection");
  var _openUrlFromRequest = dart.privateName(_http, "_openUrlFromRequest");
  var _connectionClosed = dart.privateName(_http, "_connectionClosed");
  var _shouldAuthenticateProxy = dart.privateName(_http, "_shouldAuthenticateProxy");
  var _shouldAuthenticate = dart.privateName(_http, "_shouldAuthenticate");
  var _proxy$ = dart.privateName(_http, "_proxy");
  var _findProxyCredentials = dart.privateName(_http, "_findProxyCredentials");
  var _findCredentials = dart.privateName(_http, "_findCredentials");
  var _removeProxyCredentials = dart.privateName(_http, "_removeProxyCredentials");
  var _removeCredentials = dart.privateName(_http, "_removeCredentials");
  var _authenticateProxy = dart.privateName(_http, "_authenticateProxy");
  var _authenticate = dart.privateName(_http, "_authenticate");
  _http._HttpClientResponse = class _HttpClientResponse extends _http._HttpInboundMessageListInt {
    get redirects() {
      return this[_httpRequest$][_responseRedirects];
    }
    static ['_#new#tearOff'](_incoming, _httpRequest, _httpClient, _profileData) {
      if (_incoming == null) dart.nullFailed(I[420], 600, 37, "_incoming");
      if (_httpRequest == null) dart.nullFailed(I[420], 600, 53, "_httpRequest");
      if (_httpClient == null) dart.nullFailed(I[420], 601, 12, "_httpClient");
      return new _http._HttpClientResponse.new(_incoming, _httpRequest, _httpClient, _profileData);
    }
    static _getCompressionState(httpClient, headers) {
      if (httpClient == null) dart.nullFailed(I[420], 612, 19, "httpClient");
      if (headers == null) dart.nullFailed(I[420], 612, 44, "headers");
      if (headers.value("content-encoding") === "gzip") {
        return dart.test(httpClient.autoUncompress) ? _http.HttpClientResponseCompressionState.decompressed : _http.HttpClientResponseCompressionState.compressed;
      } else {
        return _http.HttpClientResponseCompressionState.notCompressed;
      }
    }
    get statusCode() {
      return dart.nullCheck(this[_incoming$].statusCode);
    }
    get reasonPhrase() {
      return dart.nullCheck(this[_incoming$].reasonPhrase);
    }
    get certificate() {
      let socket = this[_httpRequest$][_httpClientConnection$][_socket$0];
      if (T$3.SecureSocket()[_is](socket)) return socket.peerCertificate;
      return null;
    }
    get cookies() {
      let cookies = this[_cookies];
      if (cookies != null) return cookies;
      cookies = G$.JSArrayOfCookie().of([]);
      let values = this.headers._get("set-cookie");
      if (values != null) {
        for (let value of values) {
          cookies[$add](_http.Cookie.fromSetCookieValue(value));
        }
      }
      this[_cookies] = cookies;
      return cookies;
    }
    get isRedirect() {
      if (this[_httpRequest$].method === "GET" || this[_httpRequest$].method === "HEAD") {
        return this.statusCode === 301 || this.statusCode === 308 || this.statusCode === 302 || this.statusCode === 303 || this.statusCode === 307;
      } else if (this[_httpRequest$].method === "POST") {
        return this.statusCode === 303;
      }
      return false;
    }
    redirect(method = null, url = null, followLoops = null) {
      if (method == null) {
        if (this.statusCode === 303 && this[_httpRequest$].method === "POST") {
          method = "GET";
        } else {
          method = this[_httpRequest$].method;
        }
      }
      if (url == null) {
        let location = this.headers.value("location");
        if (location == null) {
          dart.throw(new core.StateError.new("Response has no Location header for redirect"));
        }
        url = core.Uri.parse(location);
      }
      if (followLoops !== true) {
        for (let redirect of this.redirects) {
          if (dart.equals(redirect.location, url)) {
            return G$.FutureOfHttpClientResponse().error(new _http.RedirectException.new("Redirect loop detected", this.redirects));
          }
        }
      }
      return this[_httpClient$][_openUrlFromRequest](method, url, this[_httpRequest$], {isRedirect: true}).then(T$13.HttpClientResponse(), dart.fn(request => {
        let t$361851;
        if (request == null) dart.nullFailed(I[420], 685, 16, "request");
        t$361851 = request[_responseRedirects];
        (() => {
          t$361851[$addAll](this.redirects);
          t$361851[$add](new _http._RedirectInfo.new(this.statusCode, dart.nullCheck(method), dart.nullCheck(url)));
          return t$361851;
        })();
        return request.close();
      }, T$13._HttpClientRequestToFutureOfHttpClientResponse()));
    }
    listen(onData, opts) {
      let t$361851;
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      if (dart.test(this[_incoming$].upgraded)) {
        t$361851 = this[_profileData$];
        t$361851 == null ? null : t$361851.finishResponseWithError("Connection was upgraded");
        this[_httpRequest$][_httpClientConnection$].destroy();
        return new (G$._EmptyStreamOfUint8List()).new().listen(null, {onDone: onDone});
      }
      let stream = this[_incoming$];
      if (this.compressionState == _http.HttpClientResponseCompressionState.decompressed) {
        stream = stream.cast(T$.ListOfint()).transform(T$.ListOfint(), io.gzip.decoder).transform(T$.Uint8List(), C[1241] || CT.C1241);
      }
      if (this[_profileData$] != null) {
        stream = stream.map(T$.Uint8List(), dart.fn(data => {
          if (data == null) dart.nullFailed(I[420], 712, 28, "data");
          this[_profileData$].appendResponseData(data);
          return data;
        }, T$2.Uint8ListToUint8List()));
      }
      return stream.listen(onData, {onError: dart.fn((e, st) => {
          let t$361851;
          t$361851 = this[_profileData$];
          t$361851 == null ? null : t$361851.finishResponseWithError(dart.toString(e));
          if (onError == null) {
            return;
          }
          if (T$.ObjectAndStackTraceTovoid()[_is](onError)) {
            onError(T$.Object()[_as](e), T$.StackTrace()[_as](st));
          } else {
            T$.ObjectTovoid()[_as](onError)(T$.Object()[_as](e));
          }
        }, T$.dynamicAnddynamicToNull()), onDone: onDone, cancelOnError: cancelOnError});
    }
    detachSocket() {
      let t$361851;
      t$361851 = this[_profileData$];
      t$361851 == null ? null : t$361851.finishResponseWithError("Socket has been detached");
      this[_httpClient$][_connectionClosed](this[_httpRequest$][_httpClientConnection$]);
      return this[_httpRequest$][_httpClientConnection$].detachSocket();
    }
    get connectionInfo() {
      return this[_httpRequest$].connectionInfo;
    }
    get [_shouldAuthenticateProxy]() {
      let challenge = this.headers._get("proxy-authenticate");
      return this.statusCode === 407 && challenge != null && challenge[$length] === 1;
    }
    get [_shouldAuthenticate]() {
      let challenge = this.headers._get("www-authenticate");
      return this.statusCode === 401 && challenge != null && challenge[$length] === 1;
    }
    [_authenticate](proxyAuth) {
      let t$361851, t$361851$;
      if (proxyAuth == null) dart.nullFailed(I[420], 759, 49, "proxyAuth");
      t$361851 = this[_httpRequest$][_profileData$];
      t$361851 == null ? null : t$361851.requestEvent("Authentication");
      const retry = () => {
        let t$361851;
        t$361851 = this[_httpRequest$][_profileData$];
        t$361851 == null ? null : t$361851.requestEvent("Retrying");
        return this.drain(T$.dynamic()).then(T$13.HttpClientResponse(), dart.fn(_ => this[_httpClient$][_openUrlFromRequest](this[_httpRequest$].method, this[_httpRequest$].uri, this[_httpRequest$], {isRedirect: false}).then(T$13.HttpClientResponse(), dart.fn(request => {
          if (request == null) dart.nullFailed(I[420], 769, 20, "request");
          return request.close();
        }, T$13._HttpClientRequestToFutureOfHttpClientResponse())), T$13.dynamicToFutureOfHttpClientResponse()));
      };
      dart.fn(retry, T$13.VoidToFutureOfHttpClientResponse());
      const authChallenge = () => {
        return dart.test(proxyAuth) ? this.headers._get("proxy-authenticate") : this.headers._get("www-authenticate");
      };
      dart.fn(authChallenge, T$8.VoidToListNOfString());
      const findCredentials = scheme => {
        if (scheme == null) dart.nullFailed(I[420], 779, 57, "scheme");
        return dart.test(proxyAuth) ? this[_httpClient$][_findProxyCredentials](this[_httpRequest$][_proxy$], scheme) : this[_httpClient$][_findCredentials](this[_httpRequest$].uri, scheme);
      };
      dart.fn(findCredentials, T$13._AuthenticationSchemeTo_CredentialsN());
      const removeCredentials = cr => {
        if (cr == null) dart.nullFailed(I[420], 785, 41, "cr");
        if (dart.test(proxyAuth)) {
          this[_httpClient$][_removeProxyCredentials](cr);
        } else {
          this[_httpClient$][_removeCredentials](cr);
        }
      };
      dart.fn(removeCredentials, T$13._CredentialsTovoid());
      const requestAuthentication = (scheme, realm) => {
        if (scheme == null) dart.nullFailed(I[420], 794, 31, "scheme");
        if (dart.test(proxyAuth)) {
          let authenticateProxy = this[_httpClient$][_authenticateProxy];
          if (authenticateProxy == null) {
            return G$.FutureOfbool().value(false);
          }
          let proxy = this[_httpRequest$][_proxy$];
          if (!dart.test(proxy.isDirect)) {
            return authenticateProxy(dart.nullCheck(proxy.host), dart.nullCheck(proxy.port), dart.toString(scheme), realm);
          }
        }
        let authenticate = this[_httpClient$][_authenticate];
        if (authenticate == null) {
          return G$.FutureOfbool().value(false);
        }
        return authenticate(this[_httpRequest$].uri, dart.toString(scheme), realm);
      };
      dart.fn(requestAuthentication, T$13._AuthenticationSchemeAndStringNToFutureOfbool());
      let challenge = dart.nullCheck(authChallenge());
      if (!(challenge[$length] === 1)) dart.assertFailed(null, I[420], 814, 12, "challenge.length == 1");
      let header = _http._HeaderValue.parse(challenge[$_get](0), {parameterSeparator: ","});
      let scheme = _http._AuthenticationScheme.fromString(header.value);
      let realm = header.parameters[$_get]("realm");
      let cr = findCredentials(scheme);
      if (cr != null) {
        if (dart.equals(cr.scheme, _http._AuthenticationScheme.BASIC) && !dart.test(cr.used)) {
          return retry();
        }
        if (dart.equals(cr.scheme, _http._AuthenticationScheme.DIGEST)) {
          let algorithm = header.parameters[$_get]("algorithm");
          if (algorithm == null || algorithm[$toLowerCase]() === "md5") {
            let nonce = cr.nonce;
            if (nonce == null || nonce == header.parameters[$_get]("nonce")) {
              if (nonce == null) {
                t$361851$ = cr;
                (() => {
                  t$361851$.nonce = header.parameters[$_get]("nonce");
                  t$361851$.algorithm = "MD5";
                  t$361851$.qop = header.parameters[$_get]("qop");
                  t$361851$.nonceCount = 0;
                  return t$361851$;
                })();
              }
              return retry();
            } else {
              let staleHeader = header.parameters[$_get]("stale");
              if (staleHeader != null && staleHeader[$toLowerCase]() === "true") {
                cr.nonce = header.parameters[$_get]("nonce");
                return retry();
              }
            }
          }
        }
      }
      if (cr != null) {
        removeCredentials(cr);
        cr = null;
      }
      return requestAuthentication(scheme, realm).then(T$13.HttpClientResponse(), dart.fn(credsAvailable => {
        if (credsAvailable == null) dart.nullFailed(I[420], 869, 55, "credsAvailable");
        if (dart.test(credsAvailable)) {
          cr = this[_httpClient$][_findCredentials](this[_httpRequest$].uri, scheme);
          return retry();
        } else {
          return this;
        }
      }, T$13.boolToFutureOrOfHttpClientResponse()));
    }
  };
  (_http._HttpClientResponse.new = function(_incoming, _httpRequest, _httpClient, _profileData) {
    if (_incoming == null) dart.nullFailed(I[420], 600, 37, "_incoming");
    if (_httpRequest == null) dart.nullFailed(I[420], 600, 53, "_httpRequest");
    if (_httpClient == null) dart.nullFailed(I[420], 601, 12, "_httpClient");
    this[_httpRequest$] = _httpRequest;
    this[_httpClient$] = _httpClient;
    this[_profileData$] = _profileData;
    this.compressionState = _http._HttpClientResponse._getCompressionState(_httpClient, _incoming.headers);
    this.$ti = this.$ti || T$13._HttpClientResponse();
    dart.global.Object.getPrototypeOf(_http._HttpClientResponse).new.call(this, _incoming);
    _incoming.uri = this[_httpRequest$].uri;
    _incoming.dataDone.then(T$.void(), dart.fn(_ => {
      let t$361851;
      if (_ == null) dart.nullFailed(I[420], 608, 30, "_");
      t$361851 = this[_profileData$];
      return t$361851 == null ? null : t$361851.finishResponse();
    }, T$1.boolTovoid()));
  }).prototype = _http._HttpClientResponse.prototype;
  dart.addRtiResources(_http._HttpClientResponse, ["_http|_HttpClientResponse", "_http|HttpClientResponse", "async|Stream"]);
  dart.setMethodSignature(_http._HttpClientResponse, () => dart.global.Object.setPrototypeOf({
    redirect: T$13.StringNAndUriNAndboolNToFutureOfHttpClientResponse(),
    listen: T$2.Fn__ToStreamSubscriptionOfUint8List(),
    detachSocket: T$13.VoidToFutureOfSocket(),
    [_authenticate]: T$13.boolToFutureOfHttpClientResponse()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpClientResponse))));
  dart.setStaticMethodSignature(_http._HttpClientResponse, () => ['_getCompressionState']);
  dart.setGetterSignature(_http._HttpClientResponse, () => dart.global.Object.setPrototypeOf({
    redirects: T$13.ListOfRedirectInfo(),
    statusCode: T$.int(),
    reasonPhrase: T$.String(),
    certificate: T$3.X509CertificateN(),
    isRedirect: T$.bool(),
    connectionInfo: T$13.HttpConnectionInfoN(),
    [_shouldAuthenticateProxy]: T$.bool(),
    [_shouldAuthenticate]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpClientResponse))));
  dart.setLibraryUri(_http._HttpClientResponse, I[416]);
  dart.setFieldSignature(_http._HttpClientResponse, () => dart.global.Object.setPrototypeOf({
    [_httpClient$]: {type: T$13._HttpClient(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_httpRequest$]: {type: T$13._HttpClientRequest(), isConst: false, isFinal: true, libraryUri: I[416]},
    compressionState: {type: T$13.HttpClientResponseCompressionState(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_profileData$]: {type: T$13._HttpProfileDataN(), isConst: false, isFinal: true, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpClientResponse))));
  _http._ToUint8List = class _ToUint8List extends G$.ConverterOfListOfint$Uint8List() {
    static ['_#new#tearOff']() {
      return new _http._ToUint8List.new();
    }
    convert(input) {
      T$.ListOfint()[_as](input);
      if (input == null) dart.nullFailed(I[420], 884, 31, "input");
      return _native_typed_data.NativeUint8List.fromList(input);
    }
    startChunkedConversion(sink) {
      T$13.SinkOfUint8List()[_as](sink);
      if (sink == null) dart.nullFailed(I[420], 886, 58, "sink");
      return new _http._Uint8ListConversionSink.new(sink);
    }
  };
  (_http._ToUint8List.new = function() {
    this.$ti = this.$ti || T$13._ToUint8List();
    dart.global.Object.getPrototypeOf(_http._ToUint8List).new.call(this);
    ;
  }).prototype = _http._ToUint8List.prototype;
  dart.addRtiResources(_http._ToUint8List, ["_http|_ToUint8List"]);
  dart.setMethodSignature(_http._ToUint8List, () => dart.global.Object.setPrototypeOf({convert: T$2.ObjectNToUint8List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http._ToUint8List))));
  dart.setLibraryUri(_http._ToUint8List, I[416]);
  var _target$1 = dart.privateName(_http, "_Uint8ListConversionSink._target");
  var _target$2 = dart.privateName(_http, "_target");
  _http._Uint8ListConversionSink = class _Uint8ListConversionSink extends core.Object {
    get [_target$2]() {
      return this[_target$1];
    }
    set [_target$2](value) {
      super[_target$2] = value;
    }
    static ['_#new#tearOff'](_target) {
      if (_target == null) dart.nullFailed(I[420], 892, 39, "_target");
      return new _http._Uint8ListConversionSink.new(_target);
    }
    add(data) {
      T$.ListOfint()[_as](data);
      if (data == null) dart.nullFailed(I[420], 896, 22, "data");
      this[_target$2].add(_native_typed_data.NativeUint8List.fromList(data));
    }
    close() {
      this[_target$2].close();
    }
  };
  (_http._Uint8ListConversionSink.new = function(_target) {
    if (_target == null) dart.nullFailed(I[420], 892, 39, "_target");
    this[_target$1] = _target;
    ;
  }).prototype = _http._Uint8ListConversionSink.prototype;
  dart.addRtiResources(_http._Uint8ListConversionSink, ["_http|_Uint8ListConversionSink", "core|Sink"]);
  dart.setMethodSignature(_http._Uint8ListConversionSink, () => dart.global.Object.setPrototypeOf({
    add: T$.ObjectNTovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._Uint8ListConversionSink))));
  dart.setLibraryUri(_http._Uint8ListConversionSink, I[416]);
  dart.setFieldSignature(_http._Uint8ListConversionSink, () => dart.global.Object.setPrototypeOf({[_target$2]: {type: T$13.SinkOfUint8List(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._Uint8ListConversionSink))));
  var _doneCompleter$ = dart.privateName(_http, "_doneCompleter");
  var _controllerInstance$ = dart.privateName(_http, "_controllerInstance");
  var _controllerCompleter$ = dart.privateName(_http, "_controllerCompleter");
  var _isClosed$1 = dart.privateName(_http, "_isClosed");
  var _isBound$ = dart.privateName(_http, "_isBound");
  var _hasError$0 = dart.privateName(_http, "_hasError");
  var _controller$0 = dart.privateName(_http, "_controller");
  var _closeTarget$ = dart.privateName(_http, "_closeTarget");
  var _completeDoneValue$ = dart.privateName(_http, "_completeDoneValue");
  var _completeDoneError$ = dart.privateName(_http, "_completeDoneError");
  _http._StreamSinkImpl$ = dart.generic(T => {
    var __t$_StreamSinkImplOfT = () => (__t$_StreamSinkImplOfT = dart.constFn(T[_eval]("_http|_StreamSinkImpl<0>")))();
    var __t$StreamOfT = () => (__t$StreamOfT = dart.constFn(T[_eval]("async|Stream<0>")))();
    var __t$StreamControllerOfT = () => (__t$StreamControllerOfT = dart.constFn(T[_eval]("async|StreamController<0>")))();
    var __t$StreamConsumerOfT = () => (__t$StreamConsumerOfT = dart.constFn(T[_eval]("async|StreamConsumer<0>")))();
    var __t$StreamControllerNOfT = () => (__t$StreamControllerNOfT = dart.constFn(T[_eval]("async|StreamController<0>?")))();
    var __t$StreamControllerOfT$ = () => (__t$StreamControllerOfT$ = dart.constFn(async.StreamController$(T)))();
    class _StreamSinkImpl extends core.Object {
      static ['_#new#tearOff'](T, _target) {
        if (_target == null) dart.nullFailed(I[420], 914, 24, "_target");
        return new (_http._StreamSinkImpl$(T)).new(_target);
      }
      add(data) {
        T[_as](data);
        if (dart.test(this[_isClosed$1])) {
          dart.throw(new core.StateError.new("StreamSink is closed"));
        }
        this[_controller$0].add(data);
      }
      addError(error, stackTrace = null) {
        if (error == null) dart.nullFailed(I[420], 923, 24, "error");
        if (dart.test(this[_isClosed$1])) {
          dart.throw(new core.StateError.new("StreamSink is closed"));
        }
        this[_controller$0].addError(error, stackTrace);
      }
      addStream(stream) {
        __t$StreamOfT()[_as](stream);
        if (stream == null) dart.nullFailed(I[420], 930, 30, "stream");
        if (dart.test(this[_isBound$])) {
          dart.throw(new core.StateError.new("StreamSink is already bound to a stream"));
        }
        this[_isBound$] = true;
        if (dart.test(this[_hasError$0])) return this.done;
        const targetAddStream = () => {
          return this[_target$2].addStream(stream).whenComplete(dart.fn(() => {
            this[_isBound$] = false;
          }, T$0.VoidToNull()));
        };
        dart.fn(targetAddStream, T$.VoidToFuture());
        let controller = this[_controllerInstance$];
        if (controller == null) return targetAddStream();
        let future = dart.nullCheck(this[_controllerCompleter$]).future;
        controller.close();
        return future.then(T$.dynamic(), dart.fn(_ => targetAddStream(), T$.dynamicToFuture()));
      }
      flush() {
        if (dart.test(this[_isBound$])) {
          dart.throw(new core.StateError.new("StreamSink is bound to a stream"));
        }
        let controller = this[_controllerInstance$];
        if (controller == null) return async.Future.value(this);
        this[_isBound$] = true;
        let future = dart.nullCheck(this[_controllerCompleter$]).future;
        controller.close();
        return future.whenComplete(dart.fn(() => {
          this[_isBound$] = false;
        }, T$0.VoidToNull()));
      }
      close() {
        if (dart.test(this[_isBound$])) {
          dart.throw(new core.StateError.new("StreamSink is bound to a stream"));
        }
        if (!dart.test(this[_isClosed$1])) {
          this[_isClosed$1] = true;
          let controller = this[_controllerInstance$];
          if (controller != null) {
            controller.close();
          } else {
            this[_closeTarget$]();
          }
        }
        return this.done;
      }
      [_closeTarget$]() {
        this[_target$2].close().then(T$.void(), dart.bind(this, _completeDoneValue$), {onError: dart.bind(this, _completeDoneError$)});
      }
      get done() {
        return this[_doneCompleter$].future;
      }
      [_completeDoneValue$](value) {
        if (!dart.test(this[_doneCompleter$].isCompleted)) {
          this[_doneCompleter$].complete(value);
        }
      }
      [_completeDoneError$](error, stackTrace) {
        if (error == null) dart.nullFailed(I[420], 994, 34, "error");
        if (stackTrace == null) dart.nullFailed(I[420], 994, 52, "stackTrace");
        if (!dart.test(this[_doneCompleter$].isCompleted)) {
          this[_hasError$0] = true;
          this[_doneCompleter$].completeError(error, stackTrace);
        }
      }
      get [_controller$0]() {
        if (dart.test(this[_isBound$])) {
          dart.throw(new core.StateError.new("StreamSink is bound to a stream"));
        }
        if (dart.test(this[_isClosed$1])) {
          dart.throw(new core.StateError.new("StreamSink is closed"));
        }
        if (this[_controllerInstance$] == null) {
          this[_controllerInstance$] = __t$StreamControllerOfT$().new({sync: true});
          this[_controllerCompleter$] = async.Completer.new();
          this[_target$2].addStream(this[_controller$0].stream).then(T$.Null(), dart.fn(_ => {
            if (dart.test(this[_isBound$])) {
              dart.nullCheck(this[_controllerCompleter$]).complete(this);
              this[_controllerCompleter$] = null;
              this[_controllerInstance$] = null;
            } else {
              this[_closeTarget$]();
            }
          }, T$0.dynamicToNull()), {onError: dart.fn((error, stackTrace) => {
              if (error == null) dart.nullFailed(I[420], 1021, 27, "error");
              if (stackTrace == null) dart.nullFailed(I[420], 1021, 45, "stackTrace");
              if (dart.test(this[_isBound$])) {
                dart.nullCheck(this[_controllerCompleter$]).completeError(error, stackTrace);
                this[_controllerCompleter$] = null;
                this[_controllerInstance$] = null;
              } else {
                this[_completeDoneError$](error, stackTrace);
              }
            }, T$.ObjectAndStackTraceToNull())});
        }
        return dart.nullCheck(this[_controllerInstance$]);
      }
    }
    (_StreamSinkImpl.new = function(_target) {
      if (_target == null) dart.nullFailed(I[420], 914, 24, "_target");
      this[_doneCompleter$] = G$.CompleterOfvoid().new();
      this[_controllerInstance$] = null;
      this[_controllerCompleter$] = null;
      this[_isClosed$1] = false;
      this[_isBound$] = false;
      this[_hasError$0] = false;
      this[_target$2] = _target;
      this.$ti = this.$ti || __t$_StreamSinkImplOfT();
      ;
    }).prototype = _StreamSinkImpl.prototype;
    dart.addRtiResources(_StreamSinkImpl, ["_http|_StreamSinkImpl", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
    dart.setMethodSignature(_StreamSinkImpl, () => dart.global.Object.setPrototypeOf({
      add: T$.ObjectNTovoid(),
      addError: T$1.ObjectAndStackTraceNTovoid(),
      addStream: T$.ObjectNToFuture(),
      flush: T$.VoidToFuture(),
      close: T$.VoidToFuture(),
      [_closeTarget$]: T$.VoidTovoid(),
      [_completeDoneValue$]: T$.dynamicTovoid(),
      [_completeDoneError$]: T$.ObjectAndStackTraceTovoid()
    }, dart.getMethods(dart.global.Object.getPrototypeOf(_StreamSinkImpl))));
    dart.setGetterSignature(_StreamSinkImpl, () => dart.global.Object.setPrototypeOf({
      done: T$0.Future(),
      [_controller$0]: __t$StreamControllerOfT()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_StreamSinkImpl))));
    dart.setLibraryUri(_StreamSinkImpl, I[416]);
    dart.setFieldSignature(_StreamSinkImpl, () => dart.global.Object.setPrototypeOf({
      [_target$2]: {type: __t$StreamConsumerOfT(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_doneCompleter$]: {type: T$11.CompleterOfvoid(), isConst: false, isFinal: true, libraryUri: I[39]},
      [_controllerInstance$]: {type: __t$StreamControllerNOfT(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_controllerCompleter$]: {type: T$0.CompleterN(), isConst: false, isFinal: false, libraryUri: I[39]},
      [_isClosed$1]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_isBound$]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_hasError$0]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_StreamSinkImpl))));
    return _StreamSinkImpl;
  });
  _http._StreamSinkImpl = _http._StreamSinkImpl$();
  var _encodingMutable$ = dart.privateName(_http, "_encodingMutable");
  var _encoding$0 = dart.privateName(_http, "_encoding");
  var __IOSink_encoding$ = dart.privateName(_http, "_#IOSink#encoding");
  var __IOSink_encoding_ = dart.privateName(_http, "_#IOSink#encoding=");
  var __IOSink_encoding_isSet$ = dart.privateName(_http, "_#IOSink#encoding#isSet");
  var __IOSink_encoding_isSet_ = dart.privateName(_http, "_#IOSink#encoding#isSet=");
  _http._IOSinkImpl = class _IOSinkImpl extends G$._StreamSinkImplOfListOfint$1() {
    static ['_#new#tearOff'](target, _encoding, _profileData) {
      if (target == null) dart.nullFailed(I[420], 1044, 33, "target");
      if (_encoding == null) dart.nullFailed(I[420], 1044, 46, "_encoding");
      return new _http._IOSinkImpl.new(target, _encoding, _profileData);
    }
    get encoding() {
      return this[_encoding$0];
    }
    set encoding(value) {
      if (value == null) dart.nullFailed(I[420], 1049, 30, "value");
      if (!dart.test(this[_encodingMutable$])) {
        dart.throw(new core.StateError.new("IOSink encoding is not mutable"));
      }
      this[_encoding$0] = value;
    }
    write(obj) {
      let t$361851;
      let string = dart.str(obj);
      if (string[$isEmpty]) return;
      t$361851 = this[_profileData$];
      t$361851 == null ? null : t$361851.appendRequestData(_native_typed_data.NativeUint8List.fromList(convert.utf8.encode(string)));
      super.add(this[_encoding$0].encode(string));
    }
    writeAll(objects, separator = "") {
      if (objects == null) dart.nullFailed(I[420], 1067, 26, "objects");
      if (separator == null) dart.nullFailed(I[420], 1067, 43, "separator");
      let iterator = objects[$iterator];
      if (!dart.test(iterator.moveNext())) return;
      if (separator[$isEmpty]) {
        do {
          this.write(iterator.current);
        } while (dart.test(iterator.moveNext()));
      } else {
        this.write(iterator.current);
        while (dart.test(iterator.moveNext())) {
          this.write(separator);
          this.write(iterator.current);
        }
      }
    }
    writeln(object = "") {
      this.write(object);
      this.write("\n");
    }
    writeCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[420], 1088, 26, "charCode");
      this.write(core.String.fromCharCode(charCode));
    }
    get [__IOSink_encoding]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[1242] || CT.C1242)));
    }
    set [__IOSink_encoding](value) {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.setter(C[1243] || CT.C1243, value)));
    }
    get [__IOSink_encoding_isSet]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[1244] || CT.C1244)));
    }
    set [__IOSink_encoding_isSet](value) {
      if (value == null) dart.nullFailed(I[420], 1038, 7, "value");
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.setter(C[1245] || CT.C1245, value)));
    }
  };
  (_http._IOSinkImpl.new = function(target, _encoding, _profileData) {
    if (target == null) dart.nullFailed(I[420], 1044, 33, "target");
    if (_encoding == null) dart.nullFailed(I[420], 1044, 46, "_encoding");
    this[_encodingMutable$] = true;
    this[_encoding$0] = _encoding;
    this[_profileData$] = _profileData;
    this.$ti = this.$ti || T$13._IOSinkImpl$1();
    dart.global.Object.getPrototypeOf(_http._IOSinkImpl).new.call(this, target);
    ;
  }).prototype = _http._IOSinkImpl.prototype;
  dart.addRtiResources(_http._IOSinkImpl, ["_http|_IOSinkImpl", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setMethodSignature(_http._IOSinkImpl, () => dart.global.Object.setPrototypeOf({
    write: T$.ObjectNTovoid(),
    writeAll: T$2.IterableAndStringTovoid(),
    writeln: T$0.ObjectNTovoid$1(),
    writeCharCode: T$.intTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._IOSinkImpl))));
  dart.setGetterSignature(_http._IOSinkImpl, () => dart.global.Object.setPrototypeOf({
    encoding: T$2.Encoding(),
    [__IOSink_encoding]: T$2.EncodingN(),
    [__IOSink_encoding_isSet]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._IOSinkImpl))));
  dart.setSetterSignature(_http._IOSinkImpl, () => dart.global.Object.setPrototypeOf({
    encoding: T$2.Encoding(),
    [__IOSink_encoding]: T$2.EncodingN(),
    [__IOSink_encoding_isSet]: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._IOSinkImpl))));
  dart.setLibraryUri(_http._IOSinkImpl, I[416]);
  dart.setFieldSignature(_http._IOSinkImpl, () => dart.global.Object.setPrototypeOf({
    [_encoding$0]: {type: T$2.Encoding(), isConst: false, isFinal: false, libraryUri: I[41]},
    [_encodingMutable$]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_profileData$]: {type: T$13._HttpProfileDataN(), isConst: false, isFinal: true, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._IOSinkImpl))));
  var _encodingSet = dart.privateName(_http, "_encodingSet");
  var _bufferOutput = dart.privateName(_http, "_bufferOutput");
  var _uri = dart.privateName(_http, "_uri");
  var _outgoing = dart.privateName(_http, "_outgoing");
  var _isConnectionClosed = dart.privateName(_http, "_isConnectionClosed");
  _http._HttpOutboundMessage$ = dart.generic(T => {
    var __t$_HttpOutboundMessageOfT = () => (__t$_HttpOutboundMessageOfT = dart.constFn(T[_eval]("_http|_HttpOutboundMessage<0>")))();
    class _HttpOutboundMessage extends _http._IOSinkImpl {
      get contentLength() {
        return this.headers.contentLength;
      }
      set contentLength(contentLength) {
        if (contentLength == null) dart.nullFailed(I[420], 1121, 30, "contentLength");
        this.headers.contentLength = contentLength;
      }
      get persistentConnection() {
        return this.headers.persistentConnection;
      }
      set persistentConnection(p) {
        if (p == null) dart.nullFailed(I[420], 1126, 38, "p");
        this.headers.persistentConnection = p;
      }
      get bufferOutput() {
        return this[_bufferOutput];
      }
      set bufferOutput(bufferOutput) {
        if (bufferOutput == null) dart.nullFailed(I[420], 1131, 30, "bufferOutput");
        if (dart.test(this[_outgoing].headersWritten)) dart.throw(new core.StateError.new("Header already sent"));
        this[_bufferOutput] = bufferOutput;
      }
      get encoding() {
        let t$361851;
        if (dart.test(this[_encodingSet]) && dart.test(this[_outgoing].headersWritten)) {
          return this[_encoding$0];
        }
        let charset = null;
        let contentType = this.headers.contentType;
        if (contentType != null && contentType.charset != null) {
          charset = dart.nullCheck(contentType.charset);
        } else {
          charset = "iso-8859-1";
        }
        t$361851 = convert.Encoding.getByName(charset);
        return t$361851 == null ? convert.latin1 : t$361851;
      }
      set encoding(value) {
        super.encoding = value;
      }
      add(data) {
        let t$361851;
        T$.ListOfint()[_as](data);
        if (data == null) dart.nullFailed(I[420], 1150, 22, "data");
        if (dart.test(data[$isEmpty])) return;
        t$361851 = this[_profileData$];
        t$361851 == null ? null : t$361851.appendRequestData(_native_typed_data.NativeUint8List.fromList(data));
        super.add(data);
      }
      addStream(s) {
        T$2.StreamOfListOfint()[_as](s);
        if (s == null) dart.nullFailed(I[420], 1156, 38, "s");
        if (this[_profileData$] == null) {
          return super.addStream(s);
        }
        return super.addStream(s.map(T$.ListOfint(), dart.fn(data => {
          if (data == null) dart.nullFailed(I[420], 1160, 35, "data");
          this[_profileData$].appendRequestData(_native_typed_data.NativeUint8List.fromList(data));
          return data;
        }, T$13.ListOfintToListOfint())));
      }
      write(obj) {
        if (!dart.test(this[_encodingSet])) {
          this[_encoding$0] = this.encoding;
          this[_encodingSet] = true;
        }
        super.write(obj);
      }
      get [_isConnectionClosed]() {
        return false;
      }
    }
    (_HttpOutboundMessage.new = function(uri, protocolVersion, outgoing, profileData, opts) {
      if (uri == null) dart.nullFailed(I[420], 1105, 28, "uri");
      if (protocolVersion == null) dart.nullFailed(I[420], 1105, 40, "protocolVersion");
      if (outgoing == null) dart.nullFailed(I[420], 1105, 71, "outgoing");
      let initialHeaders = opts && 'initialHeaders' in opts ? opts.initialHeaders : null;
      this[_encodingSet] = false;
      this[_bufferOutput] = true;
      this[_uri] = uri;
      this.headers = new _http._HttpHeaders.new(protocolVersion, {defaultPortForScheme: dart.test(uri.isScheme("https")) ? 443 : 80, initialHeaders: initialHeaders});
      this[_outgoing] = outgoing;
      this.$ti = this.$ti || __t$_HttpOutboundMessageOfT();
      dart.global.Object.getPrototypeOf(_HttpOutboundMessage).new.call(this, outgoing, convert.latin1, profileData);
      this[_outgoing].outbound = this;
      this[_encodingMutable$] = false;
    }).prototype = _HttpOutboundMessage.prototype;
    dart.addRtiResources(_HttpOutboundMessage, ["_http|_HttpOutboundMessage"]);
    dart.setGetterSignature(_HttpOutboundMessage, () => dart.global.Object.setPrototypeOf({
      contentLength: T$.int(),
      persistentConnection: T$.bool(),
      bufferOutput: T$.bool(),
      [_isConnectionClosed]: T$.bool()
    }, dart.getGetters(dart.global.Object.getPrototypeOf(_HttpOutboundMessage))));
    dart.setSetterSignature(_HttpOutboundMessage, () => dart.global.Object.setPrototypeOf({
      contentLength: T$.int(),
      persistentConnection: T$.bool(),
      bufferOutput: T$.bool()
    }, dart.getSetters(dart.global.Object.getPrototypeOf(_HttpOutboundMessage))));
    dart.setLibraryUri(_HttpOutboundMessage, I[416]);
    dart.setFieldSignature(_HttpOutboundMessage, () => dart.global.Object.setPrototypeOf({
      [_encodingSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_bufferOutput]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
      [_uri]: {type: T$2.Uri(), isConst: false, isFinal: true, libraryUri: I[11]},
      [_outgoing]: {type: T$13._HttpOutgoing(), isConst: false, isFinal: true, libraryUri: I[416]},
      headers: {type: T$13._HttpHeaders(), isConst: false, isFinal: true, libraryUri: I[416]}
    }, dart.getFields(dart.global.Object.getPrototypeOf(_HttpOutboundMessage))));
    return _HttpOutboundMessage;
  });
  _http._HttpOutboundMessage = _http._HttpOutboundMessage$();
  var _statusCode = dart.privateName(_http, "_statusCode");
  var _reasonPhrase = dart.privateName(_http, "_reasonPhrase");
  var _deadline = dart.privateName(_http, "_deadline");
  var _deadlineTimer = dart.privateName(_http, "_deadlineTimer");
  var _isClosing = dart.privateName(_http, "_isClosing");
  var _findReasonPhrase = dart.privateName(_http, "_findReasonPhrase");
  var _isNew = dart.privateName(_http, "_isNew");
  var _writeHeader = dart.privateName(_http, "_writeHeader");
  _http._HttpResponse = class _HttpResponse extends G$._HttpOutboundMessageOfHttpResponse() {
    static ['_#new#tearOff'](uri, protocolVersion, outgoing, defaultHeaders, serverHeader) {
      if (uri == null) dart.nullFailed(I[420], 1188, 21, "uri");
      if (protocolVersion == null) dart.nullFailed(I[420], 1188, 33, "protocolVersion");
      if (outgoing == null) dart.nullFailed(I[420], 1188, 64, "outgoing");
      if (defaultHeaders == null) dart.nullFailed(I[420], 1189, 19, "defaultHeaders");
      return new _http._HttpResponse.new(uri, protocolVersion, outgoing, defaultHeaders, serverHeader);
    }
    get [_isConnectionClosed]() {
      return dart.nullCheck(this[_httpRequest$])[_httpConnection$][_isClosing];
    }
    get cookies() {
      let t$361851;
      t$361851 = this[_cookies];
      return t$361851 == null ? this[_cookies] = G$.JSArrayOfCookie().of([]) : t$361851;
    }
    get statusCode() {
      return this[_statusCode];
    }
    set statusCode(statusCode) {
      if (statusCode == null) dart.nullFailed(I[420], 1202, 27, "statusCode");
      if (dart.test(this[_outgoing].headersWritten)) dart.throw(new core.StateError.new("Header already sent"));
      this[_statusCode] = statusCode;
    }
    get reasonPhrase() {
      return this[_findReasonPhrase](this.statusCode);
    }
    set reasonPhrase(reasonPhrase) {
      if (reasonPhrase == null) dart.nullFailed(I[420], 1208, 32, "reasonPhrase");
      if (dart.test(this[_outgoing].headersWritten)) dart.throw(new core.StateError.new("Header already sent"));
      this[_reasonPhrase] = reasonPhrase;
    }
    redirect(location, opts) {
      if (location == null) dart.nullFailed(I[420], 1213, 23, "location");
      let status = opts && 'status' in opts ? opts.status : 302;
      if (status == null) dart.nullFailed(I[420], 1213, 38, "status");
      if (dart.test(this[_outgoing].headersWritten)) dart.throw(new core.StateError.new("Header already sent"));
      this.statusCode = status;
      this.headers.set("location", dart.toString(location));
      return this.close();
    }
    detachSocket(opts) {
      let writeHeaders = opts && 'writeHeaders' in opts ? opts.writeHeaders : true;
      if (writeHeaders == null) dart.nullFailed(I[420], 1220, 37, "writeHeaders");
      if (dart.test(this[_outgoing].headersWritten)) dart.throw(new core.StateError.new("Headers already sent"));
      this.deadline = null;
      let future = dart.nullCheck(this[_httpRequest$])[_httpConnection$].detachSocket();
      if (dart.test(writeHeaders)) {
        let headersFuture = this[_outgoing].writeHeaders({drainRequest: false, setOutgoing: false});
        if (!(headersFuture == null)) dart.assertFailed(null, I[420], 1227, 14, "headersFuture == null");
      } else {
        this[_outgoing].headersWritten = true;
      }
      this.close();
      this.done.catchError(dart.fn(_ => {
      }, T$0.dynamicToNull()));
      return future;
    }
    get connectionInfo() {
      return dart.nullCheck(this[_httpRequest$]).connectionInfo;
    }
    get deadline() {
      return this[_deadline];
    }
    set deadline(d) {
      let t$361851;
      t$361851 = this[_deadlineTimer];
      t$361851 == null ? null : t$361851.cancel();
      this[_deadline] = d;
      if (d == null) return;
      this[_deadlineTimer] = async.Timer.new(d, dart.fn(() => {
        dart.nullCheck(this[_httpRequest$])[_httpConnection$].destroy();
      }, T$.VoidTovoid()));
    }
    [_writeHeader]() {
      let t$361851, t$361851$, t$361851$0;
      let buffer = new _http._CopyingBytesBuilder.new(8192);
      if (this.headers.protocolVersion === "1.1") {
        buffer.add(_http._Const.HTTP11);
      } else {
        buffer.add(_http._Const.HTTP10);
      }
      buffer.addByte(32);
      buffer.add(dart.toString(this.statusCode)[$codeUnits]);
      buffer.addByte(32);
      buffer.add(this.reasonPhrase[$codeUnits]);
      buffer.addByte(13);
      buffer.addByte(10);
      let session = dart.nullCheck(this[_httpRequest$])[_session];
      if (session != null && !dart.test(session[_destroyed])) {
        session[_isNew] = false;
        let found = false;
        for (let i = 0; i < dart.notNull(this.cookies[$length]); i = i + 1) {
          if (this.cookies[$_get](i).name[$toUpperCase]() === "DARTSESSID") {
            t$361851 = this.cookies[$_get](i);
            (() => {
              t$361851.value = session.id;
              t$361851.httpOnly = true;
              t$361851.path = "/";
              return t$361851;
            })();
            found = true;
          }
        }
        if (!found) {
          let cookie = _http.Cookie.new("DARTSESSID", session.id);
          this.cookies[$add]((t$361851$ = cookie, (() => {
            t$361851$.httpOnly = true;
            t$361851$.path = "/";
            return t$361851$;
          })()));
        }
      }
      t$361851$0 = this[_cookies];
      t$361851$0 == null ? null : t$361851$0[$forEach](dart.fn(cookie => {
        if (cookie == null) dart.nullFailed(I[420], 1294, 24, "cookie");
        this.headers.add("set-cookie", cookie);
      }, T$13.CookieTovoid()));
      this.headers[_finalize]();
      this.headers[_build](buffer);
      buffer.addByte(13);
      buffer.addByte(10);
      let headerBytes = buffer.takeBytes();
      this[_outgoing].setHeader(headerBytes, headerBytes[$length]);
    }
    [_findReasonPhrase](statusCode) {
      if (statusCode == null) dart.nullFailed(I[420], 1308, 32, "statusCode");
      let reasonPhrase = this[_reasonPhrase];
      if (reasonPhrase != null) {
        return reasonPhrase;
      }
      switch (statusCode) {
        case 100:
          {
            return "Continue";
          }
        case 101:
          {
            return "Switching Protocols";
          }
        case 200:
          {
            return "OK";
          }
        case 201:
          {
            return "Created";
          }
        case 202:
          {
            return "Accepted";
          }
        case 203:
          {
            return "Non-Authoritative Information";
          }
        case 204:
          {
            return "No Content";
          }
        case 205:
          {
            return "Reset Content";
          }
        case 206:
          {
            return "Partial Content";
          }
        case 300:
          {
            return "Multiple Choices";
          }
        case 301:
          {
            return "Moved Permanently";
          }
        case 302:
          {
            return "Found";
          }
        case 303:
          {
            return "See Other";
          }
        case 304:
          {
            return "Not Modified";
          }
        case 305:
          {
            return "Use Proxy";
          }
        case 307:
          {
            return "Temporary Redirect";
          }
        case 400:
          {
            return "Bad Request";
          }
        case 401:
          {
            return "Unauthorized";
          }
        case 402:
          {
            return "Payment Required";
          }
        case 403:
          {
            return "Forbidden";
          }
        case 404:
          {
            return "Not Found";
          }
        case 405:
          {
            return "Method Not Allowed";
          }
        case 406:
          {
            return "Not Acceptable";
          }
        case 407:
          {
            return "Proxy Authentication Required";
          }
        case 408:
          {
            return "Request Time-out";
          }
        case 409:
          {
            return "Conflict";
          }
        case 410:
          {
            return "Gone";
          }
        case 411:
          {
            return "Length Required";
          }
        case 412:
          {
            return "Precondition Failed";
          }
        case 413:
          {
            return "Request Entity Too Large";
          }
        case 414:
          {
            return "Request-URI Too Long";
          }
        case 415:
          {
            return "Unsupported Media Type";
          }
        case 416:
          {
            return "Requested range not satisfiable";
          }
        case 417:
          {
            return "Expectation Failed";
          }
        case 500:
          {
            return "Internal Server Error";
          }
        case 501:
          {
            return "Not Implemented";
          }
        case 502:
          {
            return "Bad Gateway";
          }
        case 503:
          {
            return "Service Unavailable";
          }
        case 504:
          {
            return "Gateway Time-out";
          }
        case 505:
          {
            return "Http Version not supported";
          }
        default:
          {
            return "Status " + dart.str(statusCode);
          }
      }
    }
  };
  (_http._HttpResponse.new = function(uri, protocolVersion, outgoing, defaultHeaders, serverHeader) {
    if (uri == null) dart.nullFailed(I[420], 1188, 21, "uri");
    if (protocolVersion == null) dart.nullFailed(I[420], 1188, 33, "protocolVersion");
    if (outgoing == null) dart.nullFailed(I[420], 1188, 64, "outgoing");
    if (defaultHeaders == null) dart.nullFailed(I[420], 1189, 19, "defaultHeaders");
    this[_statusCode] = 200;
    this[_reasonPhrase] = null;
    this[_cookies] = null;
    this[_httpRequest$] = null;
    this[_deadline] = null;
    this[_deadlineTimer] = null;
    this.$ti = this.$ti || T$13._HttpResponse();
    dart.global.Object.getPrototypeOf(_http._HttpResponse).new.call(this, uri, protocolVersion, outgoing, null, {initialHeaders: T$13._HttpHeaders()[_as](defaultHeaders)});
    if (serverHeader != null) {
      this.headers.set("server", serverHeader);
    }
  }).prototype = _http._HttpResponse.prototype;
  dart.addRtiResources(_http._HttpResponse, ["_http|_HttpResponse", "_http|HttpResponse", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setMethodSignature(_http._HttpResponse, () => dart.global.Object.setPrototypeOf({
    redirect: T$13.Uri__ToFuture(),
    detachSocket: T$13.__ToFutureOfSocket(),
    [_writeHeader]: T$.VoidTovoid(),
    [_findReasonPhrase]: T$.intToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpResponse))));
  dart.setGetterSignature(_http._HttpResponse, () => dart.global.Object.setPrototypeOf({
    cookies: T$13.ListOfCookie(),
    statusCode: T$.int(),
    reasonPhrase: T$.String(),
    connectionInfo: T$13.HttpConnectionInfoN(),
    deadline: T$1.DurationN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpResponse))));
  dart.setSetterSignature(_http._HttpResponse, () => dart.global.Object.setPrototypeOf({
    statusCode: T$.int(),
    reasonPhrase: T$.String(),
    deadline: T$1.DurationN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpResponse))));
  dart.setLibraryUri(_http._HttpResponse, I[416]);
  dart.setFieldSignature(_http._HttpResponse, () => dart.global.Object.setPrototypeOf({
    [_statusCode]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_reasonPhrase]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_cookies]: {type: T$13.ListNOfCookie(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_httpRequest$]: {type: T$13._HttpRequestN(), isConst: false, isFinal: false, libraryUri: I[416]},
    [_deadline]: {type: T$1.DurationN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_deadlineTimer]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpResponse))));
  var _responseCompleter = dart.privateName(_http, "_responseCompleter");
  var _response = dart.privateName(_http, "_response");
  var _followRedirects = dart.privateName(_http, "_followRedirects");
  var _maxRedirects = dart.privateName(_http, "_maxRedirects");
  var _aborted = dart.privateName(_http, "_aborted");
  var _onIncoming = dart.privateName(_http, "_onIncoming");
  var _onError$0 = dart.privateName(_http, "_onError");
  var _proxyTunnel$ = dart.privateName(_http, "_proxyTunnel");
  var _requestUri = dart.privateName(_http, "_requestUri");
  _http._HttpClientRequest = class _HttpClientRequest extends G$._HttpOutboundMessageOfHttpClientResponse() {
    static ['_#new#tearOff'](outgoing, uri, method, _proxy, _httpClient, _httpClientConnection, _profileData) {
      if (outgoing == null) dart.nullFailed(I[420], 1428, 19, "outgoing");
      if (uri == null) dart.nullFailed(I[420], 1429, 10, "uri");
      if (method == null) dart.nullFailed(I[420], 1430, 10, "method");
      if (_proxy == null) dart.nullFailed(I[420], 1431, 10, "_proxy");
      if (_httpClient == null) dart.nullFailed(I[420], 1432, 10, "_httpClient");
      if (_httpClientConnection == null) dart.nullFailed(I[420], 1433, 10, "_httpClientConnection");
      return new _http._HttpClientRequest.new(outgoing, uri, method, _proxy, _httpClient, _httpClientConnection, _profileData);
    }
    get done() {
      let t$361851;
      t$361851 = this[_response];
      return t$361851 == null ? this[_response] = async.Future.wait(T$.dynamic(), G$.JSArrayOfFuture().of([this[_responseCompleter].future, super.done]), {eagerError: true}).then(T$13.HttpClientResponse(), dart.fn(list => {
        if (list == null) dart.nullFailed(I[420], 1456, 18, "list");
        return T$13.FutureOrOfHttpClientResponse()[_as](list[$_get](0));
      }, T$13.ListToFutureOrOfHttpClientResponse())) : t$361851;
    }
    close() {
      if (!dart.test(this[_aborted])) {
        super.close();
      }
      return this.done;
    }
    get maxRedirects() {
      return this[_maxRedirects];
    }
    set maxRedirects(maxRedirects) {
      if (maxRedirects == null) dart.nullFailed(I[420], 1467, 29, "maxRedirects");
      if (dart.test(this[_outgoing].headersWritten)) dart.throw(new core.StateError.new("Request already sent"));
      this[_maxRedirects] = maxRedirects;
    }
    get followRedirects() {
      return this[_followRedirects];
    }
    set followRedirects(followRedirects) {
      if (followRedirects == null) dart.nullFailed(I[420], 1473, 33, "followRedirects");
      if (dart.test(this[_outgoing].headersWritten)) dart.throw(new core.StateError.new("Request already sent"));
      this[_followRedirects] = followRedirects;
    }
    get connectionInfo() {
      return this[_httpClientConnection$].connectionInfo;
    }
    [_onIncoming](incoming) {
      if (incoming == null) dart.nullFailed(I[420], 1481, 34, "incoming");
      if (dart.test(this[_aborted])) {
        return;
      }
      let response = new _http._HttpClientResponse.new(incoming, this, this[_httpClient$], this[_profileData$]);
      let future = null;
      if (dart.test(this.followRedirects) && dart.test(response.isRedirect)) {
        if (dart.notNull(response.redirects[$length]) < dart.notNull(this.maxRedirects)) {
          future = response.drain(T$.dynamic()).then(T$13.HttpClientResponse(), dart.fn(_ => response.redirect(), T$13.dynamicToFutureOfHttpClientResponse()));
        } else {
          future = response.drain(T$.dynamic()).then(T$13.HttpClientResponse(), dart.fn(_ => G$.FutureOfHttpClientResponse().error(new _http.RedirectException.new("Redirect limit exceeded", response.redirects)), T$13.dynamicToFutureOfHttpClientResponse()));
        }
      } else if (dart.test(response[_shouldAuthenticateProxy])) {
        future = response[_authenticate](true);
      } else if (dart.test(response[_shouldAuthenticate])) {
        future = response[_authenticate](false);
      } else {
        future = G$.FutureOfHttpClientResponse().value(response);
      }
      future.then(T$.Null(), dart.fn(v => {
        if (v == null) dart.nullFailed(I[420], 1508, 18, "v");
        if (!dart.test(this[_responseCompleter].isCompleted)) {
          this[_responseCompleter].complete(v);
        }
      }, T$13.HttpClientResponseToNull()), {onError: dart.fn((e, s) => {
          if (!dart.test(this[_responseCompleter].isCompleted)) {
            this[_responseCompleter].completeError(T$.Object()[_as](e), T$.StackTraceN()[_as](s));
          }
        }, T$.dynamicAnddynamicToNull())});
    }
    [_onError$0](error, stackTrace) {
      if (stackTrace == null) dart.nullFailed(I[420], 1519, 35, "stackTrace");
      if (!dart.test(this[_responseCompleter].isCompleted)) {
        this[_responseCompleter].completeError(T$.Object()[_as](error), stackTrace);
      }
    }
    [_requestUri]() {
      const uriStartingFromPath = () => {
        let result = this.uri.path;
        if (result[$isEmpty]) result = "/";
        if (dart.test(this.uri.hasQuery)) {
          result = dart.str(result) + "?" + dart.str(this.uri.query);
        }
        return result;
      };
      dart.fn(uriStartingFromPath, T$.VoidToString());
      if (dart.test(this[_proxy$].isDirect)) {
        return uriStartingFromPath();
      } else {
        if (this.method === "CONNECT") {
          return dart.str(this.uri.host) + ":" + dart.str(this.uri.port);
        } else {
          if (dart.test(this[_httpClientConnection$][_proxyTunnel$])) {
            return uriStartingFromPath();
          } else {
            return dart.toString(this.uri.removeFragment());
          }
        }
      }
    }
    add(data) {
      T$.ListOfint()[_as](data);
      if (data == null) dart.nullFailed(I[420], 1555, 22, "data");
      if (dart.test(data[$isEmpty]) || dart.test(this[_aborted])) return;
      super.add(data);
    }
    write(obj) {
      if (dart.test(this[_aborted])) return;
      super.write(obj);
    }
    [_writeHeader]() {
      let t$361851;
      if (dart.test(this[_aborted])) {
        this[_outgoing].setHeader(_native_typed_data.NativeUint8List.new(0), 0);
        return;
      }
      let buffer = new _http._CopyingBytesBuilder.new(8192);
      buffer.add(this.method[$codeUnits]);
      buffer.addByte(32);
      buffer.add(this[_requestUri]()[$codeUnits]);
      buffer.addByte(32);
      buffer.add(_http._Const.HTTP11);
      buffer.addByte(13);
      buffer.addByte(10);
      if (dart.test(this.cookies[$isNotEmpty])) {
        let sb = new core.StringBuffer.new();
        for (let i = 0; i < dart.notNull(this.cookies[$length]); i = i + 1) {
          if (i > 0) sb.write("; ");
          t$361851 = sb;
          (() => {
            t$361851.write(this.cookies[$_get](i).name);
            t$361851.write("=");
            t$361851.write(this.cookies[$_get](i).value);
            return t$361851;
          })();
        }
        this.headers.add("cookie", dart.toString(sb));
      }
      this.headers[_finalize]();
      this.headers[_build](buffer, {skipZeroContentLength: this.method === "CONNECT" || this.method === "DELETE" || this.method === "GET" || this.method === "HEAD"});
      buffer.addByte(13);
      buffer.addByte(10);
      let headerBytes = buffer.takeBytes();
      this[_outgoing].setHeader(headerBytes, headerBytes[$length]);
    }
    abort(exception = null, stackTrace = null) {
      this[_aborted] = true;
      if (!dart.test(this[_responseCompleter].isCompleted)) {
        exception == null ? exception = new _http.HttpException.new("Request has been aborted") : null;
        this[_responseCompleter].completeError(exception, stackTrace);
        this[_httpClientConnection$].destroy();
      }
    }
  };
  (_http._HttpClientRequest.new = function(outgoing, uri, method, _proxy, _httpClient, _httpClientConnection, _profileData) {
    let t$361851;
    if (outgoing == null) dart.nullFailed(I[420], 1428, 19, "outgoing");
    if (uri == null) dart.nullFailed(I[420], 1429, 10, "uri");
    if (method == null) dart.nullFailed(I[420], 1430, 10, "method");
    if (_proxy == null) dart.nullFailed(I[420], 1431, 10, "_proxy");
    if (_httpClient == null) dart.nullFailed(I[420], 1432, 10, "_httpClient");
    if (_httpClientConnection == null) dart.nullFailed(I[420], 1433, 10, "_httpClientConnection");
    this.cookies = G$.JSArrayOfCookie().of([]);
    this[_responseCompleter] = G$.CompleterOfHttpClientResponse().new();
    this[_response] = null;
    this[_followRedirects] = true;
    this[_maxRedirects] = 5;
    this[_responseRedirects] = G$.JSArrayOfRedirectInfo().of([]);
    this[_aborted] = false;
    this.uri = uri;
    this.method = method;
    this[_proxy$] = _proxy;
    this[_httpClient$] = _httpClient;
    this[_httpClientConnection$] = _httpClientConnection;
    this.$ti = this.$ti || T$13._HttpClientRequest();
    dart.global.Object.getPrototypeOf(_http._HttpClientRequest).new.call(this, uri, "1.1", outgoing, _profileData);
    t$361851 = _profileData;
    t$361851 == null ? null : t$361851.requestEvent("Request sent");
    if (this.method === "GET" || this.method === "HEAD") {
      this.contentLength = 0;
    } else {
      this.headers.chunkedTransferEncoding = true;
    }
    this[_responseCompleter].future.then(T$.Null(), dart.fn(response => {
      let t$361851, t$361851$;
      if (response == null) dart.nullFailed(I[420], 1444, 37, "response");
      t$361851 = _profileData;
      t$361851 == null ? null : t$361851.requestEvent("Waiting (TTFB)");
      t$361851$ = _profileData;
      t$361851$ == null ? null : t$361851$.startResponse({response: response});
    }, T$13.HttpClientResponseToNull()), {onError: dart.fn(e => {
      }, T$0.dynamicToNull())});
  }).prototype = _http._HttpClientRequest.prototype;
  dart.addRtiResources(_http._HttpClientRequest, ["_http|_HttpClientRequest", "_http|HttpClientRequest", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setMethodSignature(_http._HttpClientRequest, () => dart.global.Object.setPrototypeOf({
    close: T$13.VoidToFutureOfHttpClientResponse(),
    [_onIncoming]: T$13._HttpIncomingTovoid(),
    [_onError$0]: T$1.dynamicAndStackTraceTovoid(),
    [_requestUri]: T$.VoidToString(),
    [_writeHeader]: T$.VoidTovoid(),
    abort: T$13.ObjectNAndStackTraceNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpClientRequest))));
  dart.setGetterSignature(_http._HttpClientRequest, () => dart.global.Object.setPrototypeOf({
    done: T$13.FutureOfHttpClientResponse(),
    maxRedirects: T$.int(),
    followRedirects: T$.bool(),
    connectionInfo: T$13.HttpConnectionInfoN()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpClientRequest))));
  dart.setSetterSignature(_http._HttpClientRequest, () => dart.global.Object.setPrototypeOf({
    maxRedirects: T$.int(),
    followRedirects: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpClientRequest))));
  dart.setLibraryUri(_http._HttpClientRequest, I[416]);
  dart.setFieldSignature(_http._HttpClientRequest, () => dart.global.Object.setPrototypeOf({
    method: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    uri: {type: T$2.Uri(), isConst: false, isFinal: true, libraryUri: I[11]},
    cookies: {type: T$13.ListOfCookie(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_httpClient$]: {type: T$13._HttpClient(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_httpClientConnection$]: {type: T$13._HttpClientConnection(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_responseCompleter]: {type: T$13.CompleterOfHttpClientResponse(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_proxy$]: {type: T$13._Proxy(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_response]: {type: T$13.FutureNOfHttpClientResponse(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_followRedirects]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_maxRedirects]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_responseRedirects]: {type: T$13.ListOfRedirectInfo(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_aborted]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpClientRequest))));
  var _consume$ = dart.privateName(_http, "_consume");
  _http._HttpGZipSink = class _HttpGZipSink extends convert.ByteConversionSink {
    static ['_#new#tearOff'](_consume) {
      if (_consume == null) dart.nullFailed(I[420], 1624, 22, "_consume");
      return new _http._HttpGZipSink.new(_consume);
    }
    add(chunk) {
      let t$361851;
      T$.ListOfint()[_as](chunk);
      if (chunk == null) dart.nullFailed(I[420], 1626, 22, "chunk");
      t$361851 = chunk;
      this[_consume$](t$361851);
    }
    addSlice(chunk, start, end, isLast) {
      let t$361851, t$361851$;
      if (chunk == null) dart.nullFailed(I[420], 1630, 27, "chunk");
      if (start == null) dart.nullFailed(I[420], 1630, 38, "start");
      if (end == null) dart.nullFailed(I[420], 1630, 49, "end");
      if (isLast == null) dart.nullFailed(I[420], 1630, 59, "isLast");
      if (T$.Uint8List()[_is](chunk)) {
        t$361851 = typed_data.Uint8List.view(chunk[$buffer], dart.notNull(chunk[$offsetInBytes]) + dart.notNull(start), dart.notNull(end) - dart.notNull(start));
        this[_consume$](t$361851);
      } else {
        t$361851$ = chunk[$sublist](start, dart.notNull(end) - dart.notNull(start));
        this[_consume$](t$361851$);
      }
    }
    close() {
    }
  };
  (_http._HttpGZipSink.new = function(_consume) {
    if (_consume == null) dart.nullFailed(I[420], 1624, 22, "_consume");
    this[_consume$] = _consume;
    dart.global.Object.getPrototypeOf(_http._HttpGZipSink).new.call(this);
    ;
  }).prototype = _http._HttpGZipSink.prototype;
  dart.addRtiResources(_http._HttpGZipSink, ["_http|_HttpGZipSink"]);
  dart.setMethodSignature(_http._HttpGZipSink, () => dart.global.Object.setPrototypeOf({
    add: T$.ObjectNTovoid(),
    close: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpGZipSink))));
  dart.setLibraryUri(_http._HttpGZipSink, I[416]);
  dart.setFieldSignature(_http._HttpGZipSink, () => dart.global.Object.setPrototypeOf({[_consume$]: {type: T$.ListOfintTovoid(), isConst: false, isFinal: true}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpGZipSink))));
  var _closeFuture = dart.privateName(_http, "_closeFuture");
  var _pendingChunkedFooter = dart.privateName(_http, "_pendingChunkedFooter");
  var _bytesWritten = dart.privateName(_http, "_bytesWritten");
  var _gzip = dart.privateName(_http, "_gzip");
  var _gzipSink = dart.privateName(_http, "_gzipSink");
  var _gzipAdd = dart.privateName(_http, "_gzipAdd");
  var _gzipBuffer = dart.privateName(_http, "_gzipBuffer");
  var _gzipBufferLength = dart.privateName(_http, "_gzipBufferLength");
  var _socketError = dart.privateName(_http, "_socketError");
  var _addGZipChunk = dart.privateName(_http, "_addGZipChunk");
  var _chunkHeader = dart.privateName(_http, "_chunkHeader");
  var _addChunk$ = dart.privateName(_http, "_addChunk");
  var _ignoreError$ = dart.privateName(_http, "_ignoreError");
  _http._HttpOutgoing = class _HttpOutgoing extends core.Object {
    static ['_#new#tearOff'](socket) {
      if (socket == null) dart.nullFailed(I[420], 1698, 22, "socket");
      return new _http._HttpOutgoing.new(socket);
    }
    writeHeaders(opts) {
      let drainRequest = opts && 'drainRequest' in opts ? opts.drainRequest : true;
      if (drainRequest == null) dart.nullFailed(I[420], 1703, 13, "drainRequest");
      let setOutgoing = opts && 'setOutgoing' in opts ? opts.setOutgoing : true;
      if (setOutgoing == null) dart.nullFailed(I[420], 1703, 39, "setOutgoing");
      if (dart.test(this.headersWritten)) return null;
      this.headersWritten = true;
      let drainFuture = null;
      let gzip = false;
      let response = dart.nullCheck(this.outbound);
      if (T$13._HttpResponse()[_is](response)) {
        if (dart.test(dart.nullCheck(response[_httpRequest$])[_httpServer$].autoCompress) && dart.test(response.bufferOutput) && dart.test(response.headers.chunkedTransferEncoding)) {
          let acceptEncodings = dart.nullCheck(response[_httpRequest$]).headers._get("accept-encoding");
          let contentEncoding = response.headers._get("content-encoding");
          if (acceptEncodings != null && contentEncoding == null && dart.test(acceptEncodings[$expand](T$.String(), dart.fn(list => {
            if (list == null) dart.nullFailed(I[420], 1721, 26, "list");
            return list[$split](",");
          }, T$2.StringToListOfString()))[$any](dart.fn(encoding => {
            if (encoding == null) dart.nullFailed(I[420], 1722, 23, "encoding");
            return encoding[$trim]()[$toLowerCase]() === "gzip";
          }, T$.StringTobool())))) {
            response.headers.set("content-encoding", "gzip");
            gzip = true;
          }
        }
        if (dart.test(drainRequest) && !dart.test(dart.nullCheck(response[_httpRequest$])[_incoming$].hasSubscriber)) {
          drainFuture = dart.nullCheck(response[_httpRequest$]).drain(T$.void()).catchError(dart.fn(_ => {
          }, T$0.dynamicToNull()));
        }
      } else {
        drainRequest = false;
      }
      if (!dart.test(this.ignoreBody)) {
        if (dart.test(setOutgoing)) {
          let contentLength = response.headers.contentLength;
          if (dart.test(response.headers.chunkedTransferEncoding)) {
            this.chunked = true;
            if (gzip) this.gzip = true;
          } else if (dart.notNull(contentLength) >= 0) {
            this.contentLength = contentLength;
          }
        }
        if (drainFuture != null) {
          return drainFuture.then(T$.void(), dart.fn(_ => response[_writeHeader](), T$12.voidTovoid()));
        }
      }
      response[_writeHeader]();
      return null;
    }
    addStream(stream) {
      T$2.StreamOfListOfint()[_as](stream);
      if (stream == null) dart.nullFailed(I[420], 1751, 38, "stream");
      if (dart.test(this[_socketError])) {
        stream.listen(null).cancel();
        return async.Future.value(this.outbound);
      }
      if (dart.test(this.ignoreBody)) {
        stream.drain(T$.dynamic()).catchError(dart.fn(_ => {
        }, T$0.dynamicToNull()));
        let future = this.writeHeaders();
        if (future != null) {
          return future.then(T$.dynamic(), dart.fn(_ => this.close(), T$13.voidToFuture()));
        }
        return this.close();
      }
      let controller = G$.StreamControllerOfListOfint().new({sync: true});
      const onData = data => {
        if (data == null) dart.nullFailed(I[420], 1769, 27, "data");
        if (dart.test(this[_socketError])) return;
        if (dart.test(data[$isEmpty])) return;
        if (dart.test(this.chunked)) {
          if (dart.test(this[_gzip])) {
            this[_gzipAdd] = T$.ListOfintTovoid()[_as](dart.bind(controller, 'add'));
            this[_addGZipChunk](data, T$.ListOfintTovoid()[_as](dart.bind(dart.nullCheck(this[_gzipSink]), 'add')));
            this[_gzipAdd] = null;
            return;
          }
          this[_addChunk$](this[_chunkHeader](data[$length]), T$.ListOfintTovoid()[_as](dart.bind(controller, 'add')));
          this[_pendingChunkedFooter] = 2;
        } else {
          let contentLength = this.contentLength;
          if (contentLength != null) {
            this[_bytesWritten] = dart.notNull(this[_bytesWritten]) + dart.notNull(data[$length]);
            if (dart.notNull(this[_bytesWritten]) > dart.notNull(contentLength)) {
              controller.addError(new _http.HttpException.new("Content size exceeds specified contentLength. " + dart.str(this[_bytesWritten]) + " bytes written while expected " + dart.str(contentLength) + ". " + "[" + dart.str(core.String.fromCharCodes(data)) + "]"));
              return;
            }
          }
        }
        this[_addChunk$](data, T$.ListOfintTovoid()[_as](dart.bind(controller, 'add')));
      };
      dart.fn(onData, T$.ListOfintTovoid());
      let sub = stream.listen(onData, {onError: dart.bind(controller, 'addError'), onDone: dart.bind(controller, 'close'), cancelOnError: true});
      controller.onCancel = dart.bind(sub, 'cancel');
      controller.onPause = dart.bind(sub, 'pause');
      controller.onResume = dart.bind(sub, 'resume');
      if (!dart.test(this.headersWritten)) {
        let future = this.writeHeaders();
        if (future != null) {
          sub.pause(future);
        }
      }
      return this.socket.addStream(controller.stream).then(T$.dynamic(), dart.fn(_ => this.outbound, T$13.dynamicTo_HttpOutboundMessageN()), {onError: dart.fn((error, stackTrace) => {
          if (dart.test(this[_gzip])) dart.nullCheck(this[_gzipSink]).close();
          this[_socketError] = true;
          this[_doneCompleter$].completeError(T$.Object()[_as](error), T$.StackTraceN()[_as](stackTrace));
          if (dart.test(this[_ignoreError$](error))) {
            return this.outbound;
          } else {
            dart.throw(T$.Object()[_as](error));
          }
        }, T$13.dynamicAnddynamicTo_HttpOutboundMessageN())});
    }
    close() {
      let closeFuture = this[_closeFuture];
      if (closeFuture != null) return closeFuture;
      let outbound = dart.nullCheck(this.outbound);
      if (dart.test(this[_socketError])) return async.Future.value(outbound);
      if (dart.test(outbound[_isConnectionClosed])) return async.Future.value(outbound);
      if (!dart.test(this.headersWritten) && !dart.test(this.ignoreBody)) {
        if (outbound.headers.contentLength === -1) {
          outbound.headers.chunkedTransferEncoding = false;
          outbound.headers.contentLength = 0;
        } else if (dart.notNull(outbound.headers.contentLength) > 0) {
          let error = new _http.HttpException.new("No content even though contentLength was specified to be " + "greater than 0: " + dart.str(outbound.headers.contentLength) + ".", {uri: outbound[_uri]});
          this[_doneCompleter$].completeError(error);
          return this[_closeFuture] = async.Future.error(error);
        }
      }
      let contentLength = this.contentLength;
      if (contentLength != null) {
        if (dart.notNull(this[_bytesWritten]) < dart.notNull(contentLength)) {
          let error = new _http.HttpException.new("Content size below specified contentLength. " + " " + dart.str(this[_bytesWritten]) + " bytes written but expected " + dart.str(contentLength) + ".", {uri: outbound[_uri]});
          this[_doneCompleter$].completeError(error);
          return this[_closeFuture] = async.Future.error(error);
        }
      }
      const finalize = () => {
        if (dart.test(this.chunked)) {
          if (dart.test(this[_gzip])) {
            this[_gzipAdd] = dart.bind(this.socket, 'add');
            if (dart.notNull(this[_gzipBufferLength]) > 0) {
              dart.nullCheck(this[_gzipSink]).add(typed_data.Uint8List.view(dart.nullCheck(this[_gzipBuffer])[$buffer], dart.nullCheck(this[_gzipBuffer])[$offsetInBytes], this[_gzipBufferLength]));
            }
            this[_gzipBuffer] = null;
            dart.nullCheck(this[_gzipSink]).close();
            this[_gzipAdd] = null;
          }
          this[_addChunk$](this[_chunkHeader](0), dart.bind(this.socket, 'add'));
        }
        if (dart.notNull(this[_length$3]) > 0) {
          this.socket.add(typed_data.Uint8List.view(dart.nullCheck(this[_buffer$2])[$buffer], dart.nullCheck(this[_buffer$2])[$offsetInBytes], this[_length$3]));
        }
        this[_buffer$2] = null;
        return this.socket.flush().then(T$.dynamic(), dart.fn(_ => {
          this[_doneCompleter$].complete(this.socket);
          return outbound;
        }, T$13.dynamicTo_HttpOutboundMessage()), {onError: dart.fn((error, stackTrace) => {
            this[_doneCompleter$].completeError(T$.Object()[_as](error), T$.StackTraceN()[_as](stackTrace));
            if (dart.test(this[_ignoreError$](error))) {
              return outbound;
            } else {
              dart.throw(T$.Object()[_as](error));
            }
          }, T$13.dynamicAnddynamicTo_HttpOutboundMessage())});
      };
      dart.fn(finalize, T$.VoidToFuture());
      let future = this.writeHeaders();
      if (future != null) {
        return this[_closeFuture] = future.whenComplete(finalize);
      }
      return this[_closeFuture] = finalize();
    }
    get done() {
      return this[_doneCompleter$].future;
    }
    setHeader(data, length) {
      if (data == null) dart.nullFailed(I[420], 1917, 28, "data");
      if (length == null) dart.nullFailed(I[420], 1917, 38, "length");
      if (!(this[_length$3] === 0)) dart.assertFailed(null, I[420], 1918, 12, "_length == 0");
      this[_buffer$2] = T$.Uint8List()[_as](data);
      this[_length$3] = length;
    }
    set gzip(value) {
      if (value == null) dart.nullFailed(I[420], 1923, 22, "value");
      this[_gzip] = value;
      if (dart.test(value)) {
        this[_gzipBuffer] = _native_typed_data.NativeUint8List.new(8192);
        if (!(this[_gzipSink] == null)) dart.assertFailed(null, I[420], 1927, 14, "_gzipSink == null");
        this[_gzipSink] = new io.ZLibEncoder.new({gzip: true}).startChunkedConversion(new _http._HttpGZipSink.new(dart.fn(data => {
          if (data == null) dart.nullFailed(I[420], 1929, 73, "data");
          if (this[_gzipAdd] == null) return;
          this[_addChunk$](this[_chunkHeader](data[$length]), dart.nullCheck(this[_gzipAdd]));
          this[_pendingChunkedFooter] = 2;
          this[_addChunk$](data, dart.nullCheck(this[_gzipAdd]));
        }, T$.ListOfintTovoid())));
      }
    }
    [_ignoreError$](error) {
      return (T$13.SocketException()[_is](error) || T$13.TlsException()[_is](error)) && T$13.HttpResponse()[_is](this.outbound);
    }
    [_addGZipChunk](chunk, add) {
      if (chunk == null) dart.nullFailed(I[420], 1943, 32, "chunk");
      if (add == null) dart.nullFailed(I[420], 1943, 69, "add");
      let bufferOutput = dart.nullCheck(this.outbound).bufferOutput;
      if (!dart.test(bufferOutput)) {
        add(chunk);
        return;
      }
      let gzipBuffer = dart.nullCheck(this[_gzipBuffer]);
      if (dart.notNull(chunk[$length]) > dart.notNull(gzipBuffer[$length]) - dart.notNull(this[_gzipBufferLength])) {
        add(typed_data.Uint8List.view(gzipBuffer[$buffer], gzipBuffer[$offsetInBytes], this[_gzipBufferLength]));
        this[_gzipBuffer] = _native_typed_data.NativeUint8List.new(8192);
        this[_gzipBufferLength] = 0;
      }
      if (dart.notNull(chunk[$length]) > 8192) {
        add(chunk);
      } else {
        let currentLength = this[_gzipBufferLength];
        let newLength = dart.notNull(currentLength) + dart.notNull(chunk[$length]);
        dart.nullCheck(this[_gzipBuffer])[$setRange](currentLength, newLength, chunk);
        this[_gzipBufferLength] = newLength;
      }
    }
    [_addChunk$](chunk, add) {
      if (chunk == null) dart.nullFailed(I[420], 1966, 28, "chunk");
      if (add == null) dart.nullFailed(I[420], 1966, 65, "add");
      let bufferOutput = dart.nullCheck(this.outbound).bufferOutput;
      if (!dart.test(bufferOutput)) {
        if (this[_buffer$2] != null) {
          add(typed_data.Uint8List.view(dart.nullCheck(this[_buffer$2])[$buffer], dart.nullCheck(this[_buffer$2])[$offsetInBytes], this[_length$3]));
          this[_buffer$2] = null;
          this[_length$3] = 0;
        }
        add(chunk);
        return;
      }
      if (dart.notNull(chunk[$length]) > dart.notNull(dart.nullCheck(this[_buffer$2])[$length]) - dart.notNull(this[_length$3])) {
        add(typed_data.Uint8List.view(dart.nullCheck(this[_buffer$2])[$buffer], dart.nullCheck(this[_buffer$2])[$offsetInBytes], this[_length$3]));
        this[_buffer$2] = _native_typed_data.NativeUint8List.new(8192);
        this[_length$3] = 0;
      }
      if (dart.notNull(chunk[$length]) > 8192) {
        add(chunk);
      } else {
        dart.nullCheck(this[_buffer$2])[$setRange](this[_length$3], dart.notNull(this[_length$3]) + dart.notNull(chunk[$length]), chunk);
        this[_length$3] = dart.notNull(this[_length$3]) + dart.notNull(chunk[$length]);
      }
    }
    [_chunkHeader](length) {
      if (length == null) dart.nullFailed(I[420], 1992, 30, "length");
      let hexDigits = C[1246] || CT.C1246;
      if (length === 0) {
        if (this[_pendingChunkedFooter] === 2) return _http._HttpOutgoing._footerAndChunk0Length;
        return _http._HttpOutgoing._chunk0Length;
      }
      let size = this[_pendingChunkedFooter];
      let len = length;
      while (dart.notNull(len) > 0) {
        size = dart.notNull(size) + 1;
        len = len[$rightShift](4);
      }
      let footerAndHeader = _native_typed_data.NativeUint8List.new(dart.notNull(size) + 2);
      if (this[_pendingChunkedFooter] === 2) {
        footerAndHeader[$_set](0, 13);
        footerAndHeader[$_set](1, 10);
      }
      let index = size;
      while (dart.notNull(index) > dart.notNull(this[_pendingChunkedFooter])) {
        footerAndHeader[$_set](index = dart.notNull(index) - 1, hexDigits[$_get](dart.notNull(length) & 15));
        length = length[$rightShift](4);
      }
      footerAndHeader[$_set](dart.notNull(size) + 0, 13);
      footerAndHeader[$_set](dart.notNull(size) + 1, 10);
      return footerAndHeader;
    }
  };
  (_http._HttpOutgoing.new = function(socket) {
    if (socket == null) dart.nullFailed(I[420], 1698, 22, "socket");
    this[_doneCompleter$] = G$.CompleterOfSocket().new();
    this.ignoreBody = false;
    this.headersWritten = false;
    this[_buffer$2] = null;
    this[_length$3] = 0;
    this[_closeFuture] = null;
    this.chunked = false;
    this[_pendingChunkedFooter] = 0;
    this.contentLength = null;
    this[_bytesWritten] = 0;
    this[_gzip] = false;
    this[_gzipSink] = null;
    this[_gzipAdd] = null;
    this[_gzipBuffer] = null;
    this[_gzipBufferLength] = 0;
    this[_socketError] = false;
    this.outbound = null;
    this.socket = socket;
    ;
  }).prototype = _http._HttpOutgoing.prototype;
  dart.addRtiResources(_http._HttpOutgoing, ["_http|_HttpOutgoing", "async|StreamConsumer"]);
  dart.setMethodSignature(_http._HttpOutgoing, () => dart.global.Object.setPrototypeOf({
    writeHeaders: T$13.__ToFutureNOfvoid(),
    addStream: T$.ObjectNToFuture(),
    close: T$.VoidToFuture(),
    setHeader: T$13.ListOfintAndintTovoid(),
    [_ignoreError$]: T$.dynamicTobool(),
    [_addGZipChunk]: T$13.ListOfintAndFnTovoid(),
    [_addChunk$]: T$13.ListOfintAndFnTovoid(),
    [_chunkHeader]: T$13.intToListOfint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpOutgoing))));
  dart.setGetterSignature(_http._HttpOutgoing, () => dart.global.Object.setPrototypeOf({done: T$13.FutureOfSocket()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpOutgoing))));
  dart.setSetterSignature(_http._HttpOutgoing, () => dart.global.Object.setPrototypeOf({gzip: T$.bool()}, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpOutgoing))));
  dart.setLibraryUri(_http._HttpOutgoing, I[416]);
  dart.setFieldSignature(_http._HttpOutgoing, () => dart.global.Object.setPrototypeOf({
    [_doneCompleter$]: {type: T$13.CompleterOfSocket(), isConst: false, isFinal: true, libraryUri: I[39]},
    socket: {type: T$3.Socket(), isConst: false, isFinal: true, libraryUri: I[119]},
    ignoreBody: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    headersWritten: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_buffer$2]: {type: T$2.Uint8ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_length$3]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closeFuture]: {type: T$1.FutureN(), isConst: false, isFinal: false, libraryUri: I[39]},
    chunked: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pendingChunkedFooter]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    contentLength: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_bytesWritten]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_gzip]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_gzipSink]: {type: T$13.ByteConversionSinkN(), isConst: false, isFinal: false, libraryUri: I[41]},
    [_gzipAdd]: {type: T$13.ListOfintToNvoid(), isConst: false, isFinal: false},
    [_gzipBuffer]: {type: T$2.Uint8ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_gzipBufferLength]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_socketError]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    outbound: {type: T$13._HttpOutboundMessageN(), isConst: false, isFinal: false, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpOutgoing))));
  dart.setStaticFieldSignature(_http._HttpOutgoing, () => ['_footerAndChunk0Length', '_chunk0Length']);
  dart.defineLazy(_http._HttpOutgoing, {
    /*_http._HttpOutgoing._footerAndChunk0Length*/get _footerAndChunk0Length() {
      return C[1247] || CT.C1247;
    },
    /*_http._HttpOutgoing._chunk0Length*/get _chunk0Length() {
      return C[1248] || CT.C1248;
    }
  }, false);
  var _subscription$0 = dart.privateName(_http, "_subscription");
  var _dispose = dart.privateName(_http, "_dispose");
  var _idleTimer = dart.privateName(_http, "_idleTimer");
  var _currentUri = dart.privateName(_http, "_currentUri");
  var _nextResponseCompleter = dart.privateName(_http, "_nextResponseCompleter");
  var _streamFuture = dart.privateName(_http, "_streamFuture");
  var _context$0 = dart.privateName(_http, "_context");
  var _httpParser = dart.privateName(_http, "_httpParser");
  var _proxyCredentials = dart.privateName(_http, "_proxyCredentials");
  var _returnConnection = dart.privateName(_http, "_returnConnection");
  var _connectionClosedNoFurtherClosing = dart.privateName(_http, "_connectionClosedNoFurtherClosing");
  _http._HttpClientConnection = class _HttpClientConnection extends core.Object {
    static ['_#new#tearOff'](key, _socket, _httpClient, _proxyTunnel = false, _context = null) {
      if (key == null) dart.nullFailed(I[420], 2054, 30, "key");
      if (_socket == null) dart.nullFailed(I[420], 2054, 40, "_socket");
      if (_httpClient == null) dart.nullFailed(I[420], 2054, 54, "_httpClient");
      if (_proxyTunnel == null) dart.nullFailed(I[420], 2055, 13, "_proxyTunnel");
      return new _http._HttpClientConnection.new(key, _socket, _httpClient, _proxyTunnel, _context);
    }
    send(uri, port, method, proxy, profileData) {
      let t$361851;
      if (uri == null) dart.nullFailed(I[420], 2125, 31, "uri");
      if (port == null) dart.nullFailed(I[420], 2125, 40, "port");
      if (method == null) dart.nullFailed(I[420], 2125, 53, "method");
      if (proxy == null) dart.nullFailed(I[420], 2125, 68, "proxy");
      if (dart.test(this.closed)) {
        dart.throw(new _http.HttpException.new("Socket closed before request was sent", {uri: uri}));
      }
      this[_currentUri] = uri;
      dart.nullCheck(this[_subscription$0]).pause();
      if (method === "CONNECT") {
        this[_httpParser].connectMethod = true;
      }
      let proxyCreds = null;
      let creds = null;
      let outgoing = new _http._HttpOutgoing.new(this[_socket$0]);
      let request = new _http._HttpClientRequest.new(outgoing, uri, method, proxy, this[_httpClient$], this, profileData);
      let host = uri.host;
      if (host[$contains](":")) host = "[" + dart.str(host) + "]";
      t$361851 = request.headers;
      (() => {
        t$361851.host = host;
        t$361851.port = port;
        t$361851.add("accept-encoding", "gzip");
        return t$361851;
      })();
      if (this[_httpClient$].userAgent != null) {
        request.headers.add("user-agent", dart.nullCheck(this[_httpClient$].userAgent));
      }
      if (dart.test(proxy.isAuthenticated)) {
        let auth = convert.base64Encode(convert.utf8.encode(dart.str(proxy.username) + ":" + dart.str(proxy.password)));
        request.headers.set("proxy-authorization", "Basic " + dart.str(auth));
      } else if (!dart.test(proxy.isDirect) && dart.test(this[_httpClient$][_proxyCredentials][$isNotEmpty])) {
        proxyCreds = this[_httpClient$][_findProxyCredentials](proxy);
        if (proxyCreds != null) {
          proxyCreds.authorize(request);
        }
      }
      if (uri.userInfo != null && uri.userInfo[$isNotEmpty]) {
        let auth = convert.base64Encode(convert.utf8.encode(uri.userInfo));
        request.headers.set("authorization", "Basic " + dart.str(auth));
      } else {
        creds = this[_httpClient$][_findCredentials](uri);
        if (creds != null) {
          creds.authorize(request);
        }
      }
      this[_httpParser].isHead = method === "HEAD";
      this[_streamFuture] = outgoing.done.then(T$3.Socket(), dart.fn(s => {
        let t$361851;
        if (s == null) dart.nullFailed(I[420], 2182, 56, "s");
        t$361851 = profileData;
        t$361851 == null ? null : t$361851.finishRequest({request: request});
        let nextResponseCompleter = G$.CompleterOf_HttpIncoming().new();
        this[_nextResponseCompleter] = nextResponseCompleter;
        nextResponseCompleter.future.then(T$.Null(), dart.fn(incoming => {
          if (incoming == null) dart.nullFailed(I[420], 2191, 42, "incoming");
          this[_currentUri] = null;
          incoming.dataDone.then(T$.Null(), dart.fn(closing => {
            if (closing == null) dart.nullFailed(I[420], 2193, 33, "closing");
            if (dart.test(incoming.upgraded)) {
              this[_httpClient$][_connectionClosed](this);
              this.startTimer();
              return;
            }
            if (dart.test(this.closed) || method === "CONNECT" && incoming.statusCode === 200) {
              return;
            }
            if (!dart.test(closing) && !dart.test(this[_dispose]) && dart.test(incoming.headers.persistentConnection) && dart.test(request.persistentConnection)) {
              this[_httpClient$][_returnConnection](this);
              dart.nullCheck(this[_subscription$0]).resume();
            } else {
              this.destroy();
            }
          }, T$.boolToNull()));
          if (proxyCreds != null && dart.equals(proxyCreds.scheme, _http._AuthenticationScheme.DIGEST)) {
            let authInfo = incoming.headers._get("proxy-authentication-info");
            if (authInfo != null && authInfo[$length] === 1) {
              let header = _http._HeaderValue.parse(authInfo[$_get](0), {parameterSeparator: ","});
              let nextnonce = header.parameters[$_get]("nextnonce");
              if (nextnonce != null) proxyCreds.nonce = nextnonce;
            }
          }
          if (creds != null && dart.equals(creds.scheme, _http._AuthenticationScheme.DIGEST)) {
            let authInfo = incoming.headers._get("authentication-info");
            if (authInfo != null && authInfo[$length] === 1) {
              let header = _http._HeaderValue.parse(authInfo[$_get](0), {parameterSeparator: ","});
              let nextnonce = header.parameters[$_get]("nextnonce");
              if (nextnonce != null) creds.nonce = nextnonce;
            }
          }
          request[_onIncoming](incoming);
        }, T$13._HttpIncomingToNull())).catchError(dart.fn(error => {
          dart.throw(new _http.HttpException.new("Connection closed before data was received", {uri: uri}));
        }, T$7.dynamicToNever()), {test: dart.fn(error => {
            if (error == null) dart.nullFailed(I[420], 2246, 17, "error");
            return T$13.StateError()[_is](error);
          }, T$.ObjectTobool())}).catchError(dart.fn((error, stackTrace) => {
          this.destroy();
          request[_onError$0](error, T$.StackTrace()[_as](stackTrace));
        }, T$.dynamicAnddynamicToNull()));
        dart.nullCheck(this[_subscription$0]).resume();
        return s;
      }, T$13.SocketToSocket()));
      G$.FutureOfSocketN().value(this[_streamFuture]).catchError(dart.fn(e => {
        this.destroy();
      }, T$0.dynamicToNull()));
      return request;
    }
    detachSocket() {
      return dart.nullCheck(this[_streamFuture]).then(T$3.Socket(), dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[420], 2264, 16, "_");
        return new _http._DetachedSocket.new(this[_socket$0], this[_httpParser].detachIncoming());
      }, T$13.SocketTo_DetachedSocket()));
    }
    destroy() {
      this.closed = true;
      this[_httpClient$][_connectionClosed](this);
      this[_socket$0].destroy();
    }
    destroyFromExternal() {
      this.closed = true;
      this[_httpClient$][_connectionClosedNoFurtherClosing](this);
      this[_socket$0].destroy();
    }
    close() {
      this.closed = true;
      this[_httpClient$][_connectionClosed](this);
      dart.nullCheck(this[_streamFuture]).timeout(this[_httpClient$].idleTimeout).then(T$.void(), dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[420], 2284, 16, "_");
        return this[_socket$0].destroy();
      }, T$13.SocketTovoid()));
    }
    closeFromExternal() {
      this.closed = true;
      this[_httpClient$][_connectionClosedNoFurtherClosing](this);
      dart.nullCheck(this[_streamFuture]).timeout(this[_httpClient$].idleTimeout).then(T$.void(), dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[420], 2292, 16, "_");
        return this[_socket$0].destroy();
      }, T$13.SocketTovoid()));
    }
    createProxyTunnel(host, port, proxy, callback, profileData) {
      let t$361851;
      if (host == null) dart.nullFailed(I[420], 2296, 14, "host");
      if (port == null) dart.nullFailed(I[420], 2297, 11, "port");
      if (proxy == null) dart.nullFailed(I[420], 2298, 14, "proxy");
      if (callback == null) dart.nullFailed(I[420], 2299, 50, "callback");
      let method = "CONNECT";
      let uri = core._Uri.new({host: host, port: port});
      t$361851 = profileData;
      t$361851 == null ? null : t$361851.proxyEvent(proxy);
      let proxyProfileData = null;
      if (profileData != null) {
        proxyProfileData = _http.HttpProfiler.startRequest(method, uri, {parentRequest: profileData});
      }
      let request = this.send(core._Uri.new({host: host, port: port}), port, method, proxy, proxyProfileData);
      if (dart.test(proxy.isAuthenticated)) {
        let auth = convert.base64Encode(convert.utf8.encode(dart.str(proxy.username) + ":" + dart.str(proxy.password)));
        request.headers.set("proxy-authorization", "Basic " + dart.str(auth));
      }
      return request.close().then(T$3.SecureSocket(), dart.fn(response => {
        let t$361851;
        if (response == null) dart.nullFailed(I[420], 2324, 34, "response");
        if (response.statusCode !== 200) {
          let error = "Proxy failed to establish tunnel " + "(" + dart.str(response.statusCode) + " " + dart.str(response.reasonPhrase) + ")";
          t$361851 = profileData;
          t$361851 == null ? null : t$361851.requestEvent(error);
          dart.throw(new _http.HttpException.new(error, {uri: request.uri}));
        }
        let socket = T$13._HttpClientResponse()[_as](response)[_httpRequest$][_httpClientConnection$][_socket$0];
        return io.SecureSocket.secure(socket, {host: host, context: this[_context$0], onBadCertificate: callback});
      }, T$13.HttpClientResponseToFutureOfSecureSocket())).then(T$13._HttpClientConnection(), dart.fn(secureSocket => {
        let t$361851;
        if (secureSocket == null) dart.nullFailed(I[420], 2337, 14, "secureSocket");
        let key = T$.String()[_as](_http._HttpClientConnection.makeKey(true, host, port));
        t$361851 = profileData;
        t$361851 == null ? null : t$361851.requestEvent("Proxy tunnel established");
        return new _http._HttpClientConnection.new(key, secureSocket, request[_httpClient$], true);
      }, T$13.SecureSocketTo_HttpClientConnection()));
    }
    get connectionInfo() {
      return _http._HttpConnectionInfo.create(this[_socket$0]);
    }
    static makeKey(isSecure, host, port) {
      if (isSecure == null) dart.nullFailed(I[420], 2347, 23, "isSecure");
      if (host == null) dart.nullFailed(I[420], 2347, 40, "host");
      if (port == null) dart.nullFailed(I[420], 2347, 50, "port");
      return dart.test(isSecure) ? "ssh:" + dart.str(host) + ":" + dart.str(port) : dart.str(host) + ":" + dart.str(port);
    }
    stopTimer() {
      let t$361851;
      t$361851 = this[_idleTimer];
      t$361851 == null ? null : t$361851.cancel();
      this[_idleTimer] = null;
    }
    startTimer() {
      if (!(this[_idleTimer] == null)) dart.assertFailed(null, I[420], 2357, 12, "_idleTimer == null");
      this[_idleTimer] = async.Timer.new(this[_httpClient$].idleTimeout, dart.fn(() => {
        this[_idleTimer] = null;
        this.close();
      }, T$.VoidTovoid()));
    }
  };
  (_http._HttpClientConnection.new = function(key, _socket, _httpClient, _proxyTunnel = false, _context = null) {
    if (key == null) dart.nullFailed(I[420], 2054, 30, "key");
    if (_socket == null) dart.nullFailed(I[420], 2054, 40, "_socket");
    if (_httpClient == null) dart.nullFailed(I[420], 2054, 54, "_httpClient");
    if (_proxyTunnel == null) dart.nullFailed(I[420], 2055, 13, "_proxyTunnel");
    this[_subscription$0] = null;
    this[_dispose] = false;
    this[_idleTimer] = null;
    this.closed = false;
    this[_currentUri] = null;
    this[_nextResponseCompleter] = null;
    this[_streamFuture] = null;
    this.key = key;
    this[_socket$0] = _socket;
    this[_httpClient$] = _httpClient;
    this[_proxyTunnel$] = _proxyTunnel;
    this[_context$0] = _context;
    this[_httpParser] = _http._HttpParser.responseParser();
    this[_httpParser].listenToStream(this[_socket$0]);
    this[_subscription$0] = this[_httpParser].listen(dart.fn(incoming => {
      if (incoming == null) dart.nullFailed(I[420], 2061, 41, "incoming");
      dart.nullCheck(this[_subscription$0]).pause();
      if (this[_nextResponseCompleter] == null) {
        dart.throw(new _http.HttpException.new("Unexpected response (unsolicited response without request).", {uri: this[_currentUri]}));
      }
      if (incoming.statusCode === 100) {
        incoming.drain(T$.dynamic()).then(T$.Null(), dart.fn(_ => {
          dart.nullCheck(this[_subscription$0]).resume();
        }, T$0.dynamicToNull())).catchError(dart.fn((error, stackTrace) => {
          if (stackTrace == null) dart.nullFailed(I[420], 2079, 50, "stackTrace");
          let message = null;
          if (T$13.HttpException()[_is](error)) {
            message = error.message;
          } else if (T$13.SocketException()[_is](error)) {
            message = error.message;
          } else if (T$13.TlsException()[_is](error)) {
            message = error.message;
          } else {
            dart.throw(T$.Object()[_as](error));
          }
          dart.nullCheck(this[_nextResponseCompleter]).completeError(new _http.HttpException.new(message, {uri: this[_currentUri]}), stackTrace);
          this[_nextResponseCompleter] = null;
        }, T$13.dynamicAndStackTraceToNull()), {test: dart.fn(error => {
            if (error == null) dart.nullFailed(I[420], 2094, 20, "error");
            return T$13.HttpException()[_is](error) || T$13.SocketException()[_is](error) || T$13.TlsException()[_is](error);
          }, T$.ObjectTobool())});
      } else {
        dart.nullCheck(this[_nextResponseCompleter]).complete(incoming);
        this[_nextResponseCompleter] = null;
      }
    }, T$13._HttpIncomingTovoid()), {onError: dart.fn((error, stackTrace) => {
        let t$361851;
        if (stackTrace == null) dart.nullFailed(I[420], 2102, 44, "stackTrace");
        let message = null;
        if (T$13.HttpException()[_is](error)) {
          message = error.message;
        } else if (T$13.SocketException()[_is](error)) {
          message = error.message;
        } else if (T$13.TlsException()[_is](error)) {
          message = error.message;
        } else {
          dart.throw(T$.Object()[_as](error));
        }
        t$361851 = this[_nextResponseCompleter];
        t$361851 == null ? null : t$361851.completeError(new _http.HttpException.new(message, {uri: this[_currentUri]}), stackTrace);
        this[_nextResponseCompleter] = null;
      }, T$13.dynamicAndStackTraceToNull()), onDone: dart.fn(() => {
        let t$361851;
        t$361851 = this[_nextResponseCompleter];
        t$361851 == null ? null : t$361851.completeError(new _http.HttpException.new("Connection closed before response was received", {uri: this[_currentUri]}));
        this[_nextResponseCompleter] = null;
        this.close();
      }, T$.VoidTovoid())});
  }).prototype = _http._HttpClientConnection.prototype;
  dart.addRtiResources(_http._HttpClientConnection, ["_http|_HttpClientConnection"]);
  dart.setMethodSignature(_http._HttpClientConnection, () => dart.global.Object.setPrototypeOf({
    send: T$13.UriAndintAndString__To_HttpClientRequest(),
    detachSocket: T$13.VoidToFutureOfSocket(),
    destroy: T$.VoidTovoid(),
    destroyFromExternal: T$.VoidTovoid(),
    close: T$.VoidTovoid(),
    closeFromExternal: T$.VoidTovoid(),
    createProxyTunnel: T$13.StringAndintAnd_Proxy__ToFutureOf_HttpClientConnection(),
    stopTimer: T$.VoidTovoid(),
    startTimer: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpClientConnection))));
  dart.setStaticMethodSignature(_http._HttpClientConnection, () => ['makeKey']);
  dart.setGetterSignature(_http._HttpClientConnection, () => dart.global.Object.setPrototypeOf({connectionInfo: T$13.HttpConnectionInfoN()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpClientConnection))));
  dart.setLibraryUri(_http._HttpClientConnection, I[416]);
  dart.setFieldSignature(_http._HttpClientConnection, () => dart.global.Object.setPrototypeOf({
    key: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_socket$0]: {type: T$3.Socket(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_proxyTunnel$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_context$0]: {type: T$3.SecurityContextN(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_httpParser]: {type: T$13._HttpParser(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_subscription$0]: {type: T$13.StreamSubscriptionN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_httpClient$]: {type: T$13._HttpClient(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_dispose]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_idleTimer]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]},
    closed: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentUri]: {type: T$2.UriN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_nextResponseCompleter]: {type: T$13.CompleterNOf_HttpIncoming(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_streamFuture]: {type: T$13.FutureNOfSocket(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpClientConnection))));
  _http._ConnectionInfo = class _ConnectionInfo extends core.Object {
    static ['_#new#tearOff'](connection, proxy) {
      if (connection == null) dart.nullFailed(I[420], 2369, 24, "connection");
      if (proxy == null) dart.nullFailed(I[420], 2369, 41, "proxy");
      return new _http._ConnectionInfo.new(connection, proxy);
    }
  };
  (_http._ConnectionInfo.new = function(connection, proxy) {
    if (connection == null) dart.nullFailed(I[420], 2369, 24, "connection");
    if (proxy == null) dart.nullFailed(I[420], 2369, 41, "proxy");
    this.connection = connection;
    this.proxy = proxy;
    ;
  }).prototype = _http._ConnectionInfo.prototype;
  dart.addRtiResources(_http._ConnectionInfo, ["_http|_ConnectionInfo"]);
  dart.setLibraryUri(_http._ConnectionInfo, I[416]);
  dart.setFieldSignature(_http._ConnectionInfo, () => dart.global.Object.setPrototypeOf({
    connection: {type: T$13._HttpClientConnection(), isConst: false, isFinal: true, libraryUri: I[416]},
    proxy: {type: T$13._Proxy(), isConst: false, isFinal: true, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._ConnectionInfo))));
  var _idle = dart.privateName(_http, "_idle");
  var _active = dart.privateName(_http, "_active");
  var _socketTasks = dart.privateName(_http, "_socketTasks");
  var _pending$ = dart.privateName(_http, "_pending");
  var _connecting = dart.privateName(_http, "_connecting");
  var _checkPending = dart.privateName(_http, "_checkPending");
  var _connectionsChanged = dart.privateName(_http, "_connectionsChanged");
  var _badCertificateCallback = dart.privateName(_http, "_badCertificateCallback");
  var _keyLog = dart.privateName(_http, "_keyLog");
  var _getConnectionTarget = dart.privateName(_http, "_getConnectionTarget");
  _http._ConnectionTarget = class _ConnectionTarget extends core.Object {
    static ['_#new#tearOff'](key, host, port, isSecure, context, connectionFactory) {
      if (key == null) dart.nullFailed(I[420], 2387, 26, "key");
      if (host == null) dart.nullFailed(I[420], 2387, 36, "host");
      if (port == null) dart.nullFailed(I[420], 2387, 47, "port");
      if (isSecure == null) dart.nullFailed(I[420], 2387, 58, "isSecure");
      return new _http._ConnectionTarget.new(key, host, port, isSecure, context, connectionFactory);
    }
    get isEmpty() {
      return dart.test(this[_idle][$isEmpty]) && dart.test(this[_active][$isEmpty]) && this[_connecting] === 0;
    }
    get hasIdle() {
      return this[_idle][$isNotEmpty];
    }
    get hasActive() {
      return dart.test(this[_active][$isNotEmpty]) || dart.notNull(this[_connecting]) > 0;
    }
    takeIdle() {
      if (!dart.test(this.hasIdle)) dart.assertFailed(null, I[420], 2397, 12, "hasIdle");
      let connection = this[_idle][$first];
      this[_idle].remove(connection);
      connection.stopTimer();
      this[_active].add(connection);
      return connection;
    }
    [_checkPending]() {
      if (dart.test(this[_pending$][$isNotEmpty])) {
        this[_pending$].removeFirst()();
      }
    }
    addNewActive(connection) {
      if (connection == null) dart.nullFailed(I[420], 2411, 43, "connection");
      this[_active].add(connection);
    }
    returnConnection(connection) {
      if (connection == null) dart.nullFailed(I[420], 2415, 47, "connection");
      if (!dart.test(this[_active].contains(connection))) dart.assertFailed(null, I[420], 2416, 12, "_active.contains(connection)");
      this[_active].remove(connection);
      this[_idle].add(connection);
      connection.startTimer();
      this[_checkPending]();
    }
    connectionClosed(connection) {
      if (connection == null) dart.nullFailed(I[420], 2423, 47, "connection");
      if (!(!dart.test(this[_active].contains(connection)) || !dart.test(this[_idle].contains(connection)))) dart.assertFailed(null, I[420], 2424, 12, "!_active.contains(connection) || !_idle.contains(connection)");
      this[_active].remove(connection);
      this[_idle].remove(connection);
      this[_checkPending]();
    }
    close(force) {
      if (force == null) dart.nullFailed(I[420], 2430, 19, "force");
      for (let t of this[_socketTasks][$toList]()) {
        t.socket.then(T$.Null(), dart.fn(s => {
          if (s == null) dart.nullFailed(I[420], 2434, 22, "s");
          s.destroy();
        }, T$13.SocketToNull()), {onError: dart.fn(e => {
          }, T$0.dynamicToNull())});
        t.cancel();
      }
      if (dart.test(force)) {
        for (let c of this[_idle][$toList]()) {
          c.destroyFromExternal();
        }
        for (let c of this[_active][$toList]()) {
          c.destroyFromExternal();
        }
      } else {
        for (let c of this[_idle][$toList]()) {
          c.closeFromExternal();
        }
      }
    }
    connect(uri, uriHost, uriPort, proxy, client, profileData) {
      if (uri == null) dart.nullFailed(I[420], 2453, 39, "uri");
      if (uriHost == null) dart.nullFailed(I[420], 2453, 51, "uriHost");
      if (uriPort == null) dart.nullFailed(I[420], 2453, 64, "uriPort");
      if (proxy == null) dart.nullFailed(I[420], 2454, 14, "proxy");
      if (client == null) dart.nullFailed(I[420], 2454, 33, "client");
      if (dart.test(this.hasIdle)) {
        let connection = this.takeIdle();
        client[_connectionsChanged]();
        return G$.FutureOf_ConnectionInfo().value(new _http._ConnectionInfo.new(connection, proxy));
      }
      let maxConnectionsPerHost = client.maxConnectionsPerHost;
      if (maxConnectionsPerHost != null && dart.notNull(this[_active][$length]) + dart.notNull(this[_connecting]) >= dart.notNull(maxConnectionsPerHost)) {
        let completer = G$.CompleterOf_ConnectionInfo().new();
        this[_pending$].add(dart.fn(() => {
          completer.complete(this.connect(uri, uriHost, uriPort, proxy, client, profileData));
        }, T$.VoidTovoid()));
        return completer.future;
      }
      let currentBadCertificateCallback = client[_badCertificateCallback];
      function callback(certificate) {
        if (certificate == null) dart.nullFailed(I[420], 2472, 35, "certificate");
        if (currentBadCertificateCallback == null) return false;
        return currentBadCertificateCallback(certificate, uriHost, uriPort);
      }
      dart.fn(callback, T$3.X509CertificateTobool());
      let connectionTask = null;
      let cf = this.connectionFactory;
      if (cf != null) {
        if (dart.test(proxy.isDirect)) {
          connectionTask = cf(uri, null, null);
        } else {
          connectionTask = cf(uri, this.host, this.port);
        }
      } else {
        connectionTask = dart.test(this.isSecure) && dart.test(proxy.isDirect) ? io.SecureSocket.startConnect(this.host, this.port, {context: this.context, onBadCertificate: callback, keyLog: client[_keyLog]}) : io.Socket.startConnect(this.host, this.port);
      }
      this[_connecting] = dart.notNull(this[_connecting]) + 1;
      return connectionTask.then(T$13._ConnectionInfo(), dart.fn(task => {
        if (task == null) dart.nullFailed(I[420], 2494, 56, "task");
        this[_socketTasks].add(task);
        let socketFuture = task.socket;
        let connectionTimeout = client.connectionTimeout;
        if (connectionTimeout != null) {
          socketFuture = socketFuture.timeout(connectionTimeout);
        }
        return socketFuture.then(T$13._ConnectionInfo(), dart.fn(socket => {
          if (socket == null) dart.nullFailed(I[420], 2501, 33, "socket");
          this[_connecting] = dart.notNull(this[_connecting]) - 1;
          if (!dart.equals(socket.address.type, io.InternetAddressType.unix)) {
            socket.setOption(io.SocketOption.tcpNoDelay, true);
          }
          let connection = new _http._HttpClientConnection.new(this.key, socket, client, false, this.context);
          if (dart.test(this.isSecure) && !dart.test(proxy.isDirect)) {
            connection[_dispose] = true;
            return connection.createProxyTunnel(uriHost, uriPort, proxy, callback, profileData).then(T$13._ConnectionInfo(), dart.fn(tunnel => {
              if (tunnel == null) dart.nullFailed(I[420], 2512, 22, "tunnel");
              client[_getConnectionTarget](uriHost, uriPort, true).addNewActive(tunnel);
              this[_socketTasks].remove(task);
              return new _http._ConnectionInfo.new(tunnel, proxy);
            }, T$13._HttpClientConnectionTo_ConnectionInfo()));
          } else {
            this.addNewActive(connection);
            this[_socketTasks].remove(task);
            return new _http._ConnectionInfo.new(connection, proxy);
          }
        }, T$13.SocketToFutureOrOf_ConnectionInfo()), {onError: dart.fn(error => {
            this[_connecting] = dart.notNull(this[_connecting]) - 1;
            this[_socketTasks].remove(task);
            this[_checkPending]();
            if (T$13.TimeoutException()[_is](error)) {
              if (!(connectionTimeout != null)) dart.assertFailed(null, I[420], 2532, 18, "connectionTimeout != null");
              task.cancel();
              dart.throw(new io.SocketException.new("HTTP connection timed out after " + dart.str(connectionTimeout) + ", " + "host: " + dart.str(this.host) + ", port: " + dart.str(this.port)));
            }
            dart.throw(T$.Object()[_as](error));
          }, T$7.dynamicToNever())});
      }, T$13.ConnectionTaskOfSocketToFutureOf_ConnectionInfo()), {onError: dart.fn(error => {
          this[_connecting] = dart.notNull(this[_connecting]) - 1;
          this[_checkPending]();
          dart.throw(T$.Object()[_as](error));
        }, T$7.dynamicToNever())});
    }
  };
  (_http._ConnectionTarget.new = function(key, host, port, isSecure, context, connectionFactory) {
    if (key == null) dart.nullFailed(I[420], 2387, 26, "key");
    if (host == null) dart.nullFailed(I[420], 2387, 36, "host");
    if (port == null) dart.nullFailed(I[420], 2387, 47, "port");
    if (isSecure == null) dart.nullFailed(I[420], 2387, 58, "isSecure");
    this[_idle] = new (G$._HashSetOf_HttpClientConnection()).new();
    this[_active] = new (G$._HashSetOf_HttpClientConnection()).new();
    this[_socketTasks] = new (G$._HashSetOfConnectionTaskOfSocket()).new();
    this[_pending$] = new (G$.ListQueueOfVoidTovoid()).new();
    this[_connecting] = 0;
    this.key = key;
    this.host = host;
    this.port = port;
    this.isSecure = isSecure;
    this.context = context;
    this.connectionFactory = connectionFactory;
    ;
  }).prototype = _http._ConnectionTarget.prototype;
  dart.addRtiResources(_http._ConnectionTarget, ["_http|_ConnectionTarget"]);
  dart.setMethodSignature(_http._ConnectionTarget, () => dart.global.Object.setPrototypeOf({
    takeIdle: T$13.VoidTo_HttpClientConnection(),
    [_checkPending]: T$.VoidTodynamic(),
    addNewActive: T$13._HttpClientConnectionTovoid(),
    returnConnection: T$13._HttpClientConnectionTovoid(),
    connectionClosed: T$13._HttpClientConnectionTovoid(),
    close: T$1.boolTovoid(),
    connect: T$13.UriAndStringAndint__ToFutureOf_ConnectionInfo()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._ConnectionTarget))));
  dart.setGetterSignature(_http._ConnectionTarget, () => dart.global.Object.setPrototypeOf({
    isEmpty: T$.bool(),
    hasIdle: T$.bool(),
    hasActive: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._ConnectionTarget))));
  dart.setLibraryUri(_http._ConnectionTarget, I[416]);
  dart.setFieldSignature(_http._ConnectionTarget, () => dart.global.Object.setPrototypeOf({
    key: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    host: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    port: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    isSecure: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    context: {type: T$3.SecurityContextN(), isConst: false, isFinal: true, libraryUri: I[119]},
    connectionFactory: {type: T$13.UriAndStringNAndintNToNFutureOfConnectionTaskOfSocket(), isConst: false, isFinal: true},
    [_idle]: {type: T$13.SetOf_HttpClientConnection(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_active]: {type: T$13.SetOf_HttpClientConnection(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_socketTasks]: {type: T$13.SetOfConnectionTaskOfSocket(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_pending$]: {type: T$13.ListQueueOfVoidTovoid(), isConst: false, isFinal: true, libraryUri: I[24]},
    [_connecting]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._ConnectionTarget))));
  var _closing = dart.privateName(_http, "_closing");
  var _closingForcefully = dart.privateName(_http, "_closingForcefully");
  var _connectionTargets = dart.privateName(_http, "_connectionTargets");
  var _credentials = dart.privateName(_http, "_credentials");
  var _connectionFactory = dart.privateName(_http, "_connectionFactory");
  var _findProxy = dart.privateName(_http, "_findProxy");
  var _idleTimeout = dart.privateName(_http, "_idleTimeout");
  var _openUrl = dart.privateName(_http, "_openUrl");
  var _closeConnections = dart.privateName(_http, "_closeConnections");
  var _isLoopback = dart.privateName(_http, "_isLoopback");
  var _isValidToken = dart.privateName(_http, "_isValidToken");
  var _Proxy_isDirect = dart.privateName(_http, "_Proxy.isDirect");
  var _Proxy_password = dart.privateName(_http, "_Proxy.password");
  var _Proxy_username = dart.privateName(_http, "_Proxy.username");
  var _Proxy_port = dart.privateName(_http, "_Proxy.port");
  var _Proxy_host = dart.privateName(_http, "_Proxy.host");
  var _ProxyConfiguration_proxies = dart.privateName(_http, "_ProxyConfiguration.proxies");
  var _getConnection = dart.privateName(_http, "_getConnection");
  _http._HttpClient = class _HttpClient extends core.Object {
    get idleTimeout() {
      return this[_idleTimeout];
    }
    static ['_#new#tearOff'](_context) {
      return new _http._HttpClient.new(_context);
    }
    set idleTimeout(timeout) {
      if (timeout == null) dart.nullFailed(I[420], 2581, 33, "timeout");
      this[_idleTimeout] = timeout;
      for (let c of this[_connectionTargets][$values]) {
        for (let idle of c[_idle]) {
          idle.stopTimer();
          idle.startTimer();
        }
      }
    }
    set badCertificateCallback(callback) {
      this[_badCertificateCallback] = callback;
    }
    set keyLog(callback) {
      this[_keyLog] = callback;
    }
    open(method, host, port, path) {
      if (method == null) dart.nullFailed(I[420], 2602, 14, "method");
      if (host == null) dart.nullFailed(I[420], 2602, 29, "host");
      if (port == null) dart.nullFailed(I[420], 2602, 39, "port");
      if (path == null) dart.nullFailed(I[420], 2602, 52, "path");
      let fragmentStart = path.length;
      let queryStart = path.length;
      for (let i = path.length - 1; i >= 0; i = i - 1) {
        let char = path[$codeUnitAt](i);
        if (char === 35) {
          fragmentStart = i;
          queryStart = i;
        } else if (char === 63) {
          queryStart = i;
        }
      }
      let query = null;
      if (queryStart < fragmentStart) {
        query = path[$substring](queryStart + 1, fragmentStart);
        path = path[$substring](0, queryStart);
      }
      let uri = core._Uri.new({scheme: "http", host: host, port: port, path: path, query: query});
      return this[_openUrl](method, uri);
    }
    openUrl(method, url) {
      if (method == null) dart.nullFailed(I[420], 2626, 44, "method");
      if (url == null) dart.nullFailed(I[420], 2626, 56, "url");
      return this[_openUrl](method, url);
    }
    get(host, port, path) {
      if (host == null) dart.nullFailed(I[420], 2629, 40, "host");
      if (port == null) dart.nullFailed(I[420], 2629, 50, "port");
      if (path == null) dart.nullFailed(I[420], 2629, 63, "path");
      return this.open("get", host, port, path);
    }
    getUrl(url) {
      if (url == null) dart.nullFailed(I[420], 2632, 40, "url");
      return this[_openUrl]("get", url);
    }
    post(host, port, path) {
      if (host == null) dart.nullFailed(I[420], 2634, 41, "host");
      if (port == null) dart.nullFailed(I[420], 2634, 51, "port");
      if (path == null) dart.nullFailed(I[420], 2634, 64, "path");
      return this.open("post", host, port, path);
    }
    postUrl(url) {
      if (url == null) dart.nullFailed(I[420], 2637, 41, "url");
      return this[_openUrl]("post", url);
    }
    put(host, port, path) {
      if (host == null) dart.nullFailed(I[420], 2639, 40, "host");
      if (port == null) dart.nullFailed(I[420], 2639, 50, "port");
      if (path == null) dart.nullFailed(I[420], 2639, 63, "path");
      return this.open("put", host, port, path);
    }
    putUrl(url) {
      if (url == null) dart.nullFailed(I[420], 2642, 40, "url");
      return this[_openUrl]("put", url);
    }
    delete(host, port, path) {
      if (host == null) dart.nullFailed(I[420], 2644, 43, "host");
      if (port == null) dart.nullFailed(I[420], 2644, 53, "port");
      if (path == null) dart.nullFailed(I[420], 2644, 66, "path");
      return this.open("delete", host, port, path);
    }
    deleteUrl(url) {
      if (url == null) dart.nullFailed(I[420], 2647, 43, "url");
      return this[_openUrl]("delete", url);
    }
    head(host, port, path) {
      if (host == null) dart.nullFailed(I[420], 2649, 41, "host");
      if (port == null) dart.nullFailed(I[420], 2649, 51, "port");
      if (path == null) dart.nullFailed(I[420], 2649, 64, "path");
      return this.open("head", host, port, path);
    }
    headUrl(url) {
      if (url == null) dart.nullFailed(I[420], 2652, 41, "url");
      return this[_openUrl]("head", url);
    }
    patch(host, port, path) {
      if (host == null) dart.nullFailed(I[420], 2654, 42, "host");
      if (port == null) dart.nullFailed(I[420], 2654, 52, "port");
      if (path == null) dart.nullFailed(I[420], 2654, 65, "path");
      return this.open("patch", host, port, path);
    }
    patchUrl(url) {
      if (url == null) dart.nullFailed(I[420], 2657, 42, "url");
      return this[_openUrl]("patch", url);
    }
    close(opts) {
      let force = opts && 'force' in opts ? opts.force : false;
      if (force == null) dart.nullFailed(I[420], 2659, 20, "force");
      this[_closing] = true;
      this[_closingForcefully] = force;
      this[_closeConnections](this[_closingForcefully]);
      if (!!dart.test(this[_connectionTargets][$values][$any](dart.fn(s => {
        if (s == null) dart.nullFailed(I[420], 2663, 44, "s");
        return s.hasIdle;
      }, T$13._ConnectionTargetTobool())))) dart.assertFailed(null, I[420], 2663, 12, "!_connectionTargets.values.any((s) => s.hasIdle)");
      if (!(!dart.test(force) || !dart.test(this[_connectionTargets][$values][$any](dart.fn(s => {
        if (s == null) dart.nullFailed(I[420], 2665, 51, "s");
        return s[_active][$isNotEmpty];
      }, T$13._ConnectionTargetTobool()))))) dart.assertFailed(null, I[420], 2665, 9, "!force || !_connectionTargets.values.any((s) => s._active.isNotEmpty)");
    }
    set authenticate(f) {
      this[_authenticate] = f;
    }
    addCredentials(url, realm, cr) {
      if (url == null) dart.nullFailed(I[420], 2673, 27, "url");
      if (realm == null) dart.nullFailed(I[420], 2673, 39, "realm");
      if (cr == null) dart.nullFailed(I[420], 2673, 68, "cr");
      this[_credentials][$add](new _http._SiteCredentials.new(url, realm, T$13._HttpClientCredentials()[_as](cr)));
    }
    set authenticateProxy(f) {
      this[_authenticateProxy] = f;
    }
    addProxyCredentials(host, port, realm, cr) {
      if (host == null) dart.nullFailed(I[420], 2686, 14, "host");
      if (port == null) dart.nullFailed(I[420], 2686, 24, "port");
      if (realm == null) dart.nullFailed(I[420], 2686, 37, "realm");
      if (cr == null) dart.nullFailed(I[420], 2686, 66, "cr");
      this[_proxyCredentials][$add](new _http._ProxyCredentials.new(host, port, realm, T$13._HttpClientCredentials()[_as](cr)));
    }
    set connectionFactory(f) {
      return this[_connectionFactory] = f;
    }
    set findProxy(f) {
      return this[_findProxy] = f;
    }
    static _startRequestTimelineEvent(timeline, method, uri) {
      let t$361851;
      if (method == null) dart.nullFailed(I[420], 2700, 38, "method");
      if (uri == null) dart.nullFailed(I[420], 2700, 50, "uri");
      t$361851 = timeline;
      t$361851 == null ? null : t$361851.start("HTTP CLIENT " + method[$toUpperCase](), {arguments: new _js_helper.LinkedMap.from(["method", method[$toUpperCase](), "uri", dart.toString(uri)])});
    }
    [_isLoopback](host) {
      if (host == null) dart.nullFailed(I[420], 2707, 27, "host");
      if (host[$isEmpty]) return false;
      if ("localhost" === host) return true;
      try {
        return io.InternetAddress.new(host).isLoopback;
      } catch (t$36$35e) {
        let t$36$35ex = dart.getThrown(t$36$35e);
        if (T$2.ArgumentError()[_is](t$36$35ex)) {
          return false;
        } else
          throw t$36$35e;
      }
    }
    [_isValidToken](token) {
      if (token == null) dart.nullFailed(I[420], 2717, 29, "token");
      _internal.checkNotNullable(T$.String(), token, "token");
      let _validChars = "                                 ! #$%&'  *+ -. 0123456789       ABCDEFGHIJKLMNOPQRSTUVWXYZ   ^_`abcdefghijklmnopqrstuvwxyz | ~ ";
      for (let codeUnit of token[$codeUnits]) {
        if (dart.notNull(codeUnit) >= _validChars.length || _validChars[$codeUnitAt](codeUnit) === 32) {
          return false;
        }
      }
      return true;
    }
    [_openUrl](method, uri) {
      if (method == null) dart.nullFailed(I[420], 2741, 46, "method");
      if (uri == null) dart.nullFailed(I[420], 2741, 58, "uri");
      if (dart.test(this[_closing])) {
        dart.throw(new core.StateError.new("Client is closed"));
      }
      uri = uri.removeFragment();
      if (!dart.test(this[_isValidToken](method))) {
        dart.throw(new core.ArgumentError.value(method, "method"));
      }
      if (method !== "CONNECT") {
        if (uri.host[$isEmpty]) {
          dart.throw(new core.ArgumentError.new("No host specified in URI " + dart.str(uri)));
        } else if (this[_connectionFactory] == null && !dart.test(uri.isScheme("http")) && !dart.test(uri.isScheme("https"))) {
          dart.throw(new core.ArgumentError.new("Unsupported scheme '" + dart.str(uri.scheme) + "' in URI " + dart.str(uri)));
        }
      }
      _http._httpConnectionHook(uri);
      let isSecure = uri.isScheme("https");
      let port = uri.port;
      if (port === 0) {
        port = dart.test(isSecure) ? 443 : 80;
      }
      let proxyConf = C[1250] || CT.C1250;
      let findProxy = this[_findProxy];
      if (findProxy != null) {
        try {
          proxyConf = new _http._ProxyConfiguration.new(findProxy(uri));
        } catch (t$36$35e) {
          let error = dart.getThrown(t$36$35e);
          let stackTrace = dart.stackTrace(t$36$35e);
          if (T$.Object()[_is](error)) {
            return G$.FutureOf_HttpClientRequest().error(error, stackTrace);
          } else
            throw t$36$35e;
        }
      }
      let profileData = null;
      if (dart.test(_http.HttpClient.enableTimelineLogging) && true) {
        profileData = _http.HttpProfiler.startRequest(method, uri);
      }
      return this[_getConnection](uri, uri.host, port, proxyConf, isSecure, profileData).then(T$13._HttpClientRequest(), dart.fn(info => {
        if (info == null) dart.nullFailed(I[420], 2791, 32, "info");
        function send(info) {
          let t$361854;
          if (info == null) dart.nullFailed(I[420], 2792, 47, "info");
          t$361854 = profileData;
          t$361854 == null ? null : t$361854.requestEvent("Connection established");
          return info.connection.send(uri, port, method[$toUpperCase](), info.proxy, profileData);
        }
        dart.fn(send, T$13._ConnectionInfoTo_HttpClientRequest());
        if (dart.test(info.connection.closed)) {
          return this[_getConnection](uri, uri.host, port, proxyConf, isSecure, profileData).then(T$13._HttpClientRequest(), send);
        }
        return send(info);
      }, T$13._ConnectionInfoToFutureOrOf_HttpClientRequest()), {onError: dart.fn(error => {
          let t$361854;
          t$361854 = profileData;
          t$361854 == null ? null : t$361854.finishRequestWithError(dart.toString(error));
          dart.throw(T$.Object()[_as](error));
        }, T$7.dynamicToNever())});
    }
    static _isSubdomain(subdomain, domain) {
      if (subdomain == null) dart.nullFailed(I[420], 2812, 32, "subdomain");
      if (domain == null) dart.nullFailed(I[420], 2812, 47, "domain");
      return dart.test(subdomain.isScheme(domain.scheme)) && subdomain.port == domain.port && (subdomain.host == domain.host || subdomain.host[$endsWith]("." + dart.notNull(domain.host)));
    }
    static shouldCopyHeaderOnRedirect(headerKey, originalUrl, redirectUri) {
      if (headerKey == null) dart.nullFailed(I[420], 2821, 14, "headerKey");
      if (originalUrl == null) dart.nullFailed(I[420], 2821, 29, "originalUrl");
      if (redirectUri == null) dart.nullFailed(I[420], 2821, 46, "redirectUri");
      if (dart.test(_http._HttpClient._isSubdomain(redirectUri, originalUrl))) {
        return true;
      }
      let nonRedirectHeaders = C[1253] || CT.C1253;
      return !dart.test(nonRedirectHeaders[$contains](headerKey[$toLowerCase]()));
    }
    [_openUrlFromRequest](method, uri, previous, opts) {
      if (method == null) dart.nullFailed(I[420], 2836, 14, "method");
      if (uri == null) dart.nullFailed(I[420], 2836, 26, "uri");
      if (previous == null) dart.nullFailed(I[420], 2836, 50, "previous");
      let isRedirect = opts && 'isRedirect' in opts ? opts.isRedirect : null;
      if (isRedirect == null) dart.nullFailed(I[420], 2837, 22, "isRedirect");
      let resolved = previous.uri.resolveUri(uri);
      return this[_openUrl](method, resolved).then(T$13._HttpClientRequest(), dart.fn(request => {
        let t$361854, t$361854$;
        if (request == null) dart.nullFailed(I[420], 2841, 64, "request");
        t$361854 = request;
        (() => {
          t$361854.followRedirects = previous.followRedirects;
          t$361854.maxRedirects = previous.maxRedirects;
          return t$361854;
        })();
        for (let header of previous.headers[_headers][$keys]) {
          if (request.headers._get(header) == null && (!dart.test(isRedirect) || dart.test(_http._HttpClient.shouldCopyHeaderOnRedirect(header, resolved, previous.uri)))) {
            request.headers.set(header, dart.nullCheck(previous.headers._get(header)));
          }
        }
        t$361854$ = request;
        return (() => {
          t$361854$.headers.chunkedTransferEncoding = false;
          t$361854$.contentLength = 0;
          return t$361854$;
        })();
      }, T$13._HttpClientRequestTo_HttpClientRequest()));
    }
    [_returnConnection](connection) {
      if (connection == null) dart.nullFailed(I[420], 2862, 48, "connection");
      dart.nullCheck(this[_connectionTargets][$_get](connection.key)).returnConnection(connection);
      this[_connectionsChanged]();
    }
    [_connectionClosed](connection) {
      if (connection == null) dart.nullFailed(I[420], 2868, 48, "connection");
      connection.stopTimer();
      let connectionTarget = this[_connectionTargets][$_get](connection.key);
      if (connectionTarget != null) {
        connectionTarget.connectionClosed(connection);
        if (dart.test(connectionTarget.isEmpty)) {
          this[_connectionTargets][$remove](connection.key);
        }
        this[_connectionsChanged]();
      }
    }
    [_connectionClosedNoFurtherClosing](connection) {
      if (connection == null) dart.nullFailed(I[420], 2883, 64, "connection");
      connection.stopTimer();
      let connectionTarget = this[_connectionTargets][$_get](connection.key);
      if (connectionTarget != null) {
        connectionTarget.connectionClosed(connection);
        if (dart.test(connectionTarget.isEmpty)) {
          this[_connectionTargets][$remove](connection.key);
        }
      }
    }
    [_connectionsChanged]() {
      if (dart.test(this[_closing])) {
        this[_closeConnections](this[_closingForcefully]);
      }
    }
    [_closeConnections](force) {
      if (force == null) dart.nullFailed(I[420], 2900, 31, "force");
      for (let connectionTarget of this[_connectionTargets][$values][$toList]()) {
        connectionTarget.close(force);
      }
    }
    [_getConnectionTarget](host, port, isSecure) {
      if (host == null) dart.nullFailed(I[420], 2906, 49, "host");
      if (port == null) dart.nullFailed(I[420], 2906, 59, "port");
      if (isSecure == null) dart.nullFailed(I[420], 2906, 70, "isSecure");
      let key = T$.String()[_as](_http._HttpClientConnection.makeKey(isSecure, host, port));
      return this[_connectionTargets][$putIfAbsent](key, dart.fn(() => new _http._ConnectionTarget.new(key, host, port, isSecure, this[_context$0], this[_connectionFactory]), T$13.VoidTo_ConnectionTarget()));
    }
    [_getConnection](uri, uriHost, uriPort, proxyConf, isSecure, profileData) {
      if (uri == null) dart.nullFailed(I[420], 2916, 11, "uri");
      if (uriHost == null) dart.nullFailed(I[420], 2917, 14, "uriHost");
      if (uriPort == null) dart.nullFailed(I[420], 2918, 11, "uriPort");
      if (proxyConf == null) dart.nullFailed(I[420], 2919, 27, "proxyConf");
      if (isSecure == null) dart.nullFailed(I[420], 2920, 12, "isSecure");
      let proxies = proxyConf.proxies[$iterator];
      const connect = (error, stackTrace) => {
        if (!dart.test(proxies.moveNext())) return G$.FutureOf_ConnectionInfo().error(T$.Object()[_as](error), T$.StackTraceN()[_as](stackTrace));
        let proxy = proxies.current;
        let host = dart.test(proxy.isDirect) ? uriHost : dart.nullCheck(proxy.host);
        let port = dart.test(proxy.isDirect) ? uriPort : dart.nullCheck(proxy.port);
        return this[_getConnectionTarget](host, port, isSecure).connect(uri, uriHost, uriPort, proxy, this, profileData).catchError(connect);
      };
      dart.fn(connect, T$13.dynamicAnddynamicToFutureOf_ConnectionInfo());
      return connect(new _http.HttpException.new("No proxies given"), core.StackTrace.current);
    }
    [_findCredentials](url, scheme = null) {
      if (url == null) dart.nullFailed(I[420], 2938, 42, "url");
      let cr = this[_credentials][$fold](T$13._SiteCredentialsN(), null, dart.fn((prev, value) => {
        if (value == null) dart.nullFailed(I[420], 2941, 58, "value");
        let siteCredentials = T$13._SiteCredentials()[_as](value);
        if (dart.test(siteCredentials.applies(url, scheme))) {
          if (prev == null) return value;
          return siteCredentials.uri.path.length > prev.uri.path.length ? siteCredentials : prev;
        } else {
          return prev;
        }
      }, T$13._SiteCredentialsNAnd_CredentialsTo_SiteCredentialsN()));
      return cr;
    }
    [_findProxyCredentials](proxy, scheme = null) {
      if (proxy == null) dart.nullFailed(I[420], 2955, 51, "proxy");
      for (let current of this[_proxyCredentials]) {
        if (dart.test(current.applies(proxy, scheme))) {
          return current;
        }
      }
      return null;
    }
    [_removeCredentials](cr) {
      if (cr == null) dart.nullFailed(I[420], 2966, 40, "cr");
      let index = this[_credentials][$indexOf](cr);
      if (index !== -1) {
        this[_credentials][$removeAt](index);
      }
    }
    [_removeProxyCredentials](cr) {
      if (cr == null) dart.nullFailed(I[420], 2973, 45, "cr");
      this[_proxyCredentials][$remove](cr);
    }
    static _findProxyFromEnvironment(url, environment) {
      let t$361854, t$361854$, t$361854$0;
      if (url == null) dart.nullFailed(I[420], 2978, 11, "url");
      function checkNoProxy(option) {
        if (option == null) return null;
        let names = option[$split](",")[$map](T$.String(), dart.fn(s => {
          if (s == null) dart.nullFailed(I[420], 2981, 55, "s");
          return s[$trim]();
        }, T$.StringToString()))[$iterator];
        while (dart.test(names.moveNext())) {
          let name = names.current;
          if (name[$startsWith]("[") && name[$endsWith]("]") && "[" + dart.str(url.host) + "]" === name || name[$isNotEmpty] && url.host[$endsWith](name)) {
            return "DIRECT";
          }
        }
        return null;
      }
      dart.fn(checkNoProxy, T$6.StringNToStringN());
      function checkProxy(option) {
        if (option == null) return null;
        option = option[$trim]();
        if (option[$isEmpty]) return null;
        let pos = option[$indexOf]("://");
        if (pos >= 0) {
          option = option[$substring](pos + 3);
        }
        pos = option[$indexOf]("/");
        if (pos >= 0) {
          option = option[$substring](0, pos);
        }
        if (option[$indexOf]("[") === 0) {
          let pos = option[$lastIndexOf](":");
          if (option[$indexOf]("]") > pos) option = dart.str(option) + ":1080";
        } else {
          if (!option[$contains](":")) option = dart.str(option) + ":1080";
        }
        return "PROXY " + dart.str(option);
      }
      dart.fn(checkProxy, T$6.StringNToStringN());
      environment == null ? environment = _http._HttpClient._platformEnvironmentCache : null;
      let proxyCfg = null;
      let noProxy = (t$361854 = environment[$_get]("no_proxy"), t$361854 == null ? environment[$_get]("NO_PROXY") : t$361854);
      proxyCfg = checkNoProxy(noProxy);
      if (proxyCfg != null) {
        return proxyCfg;
      }
      if (dart.test(url.isScheme("http"))) {
        let proxy = (t$361854$ = environment[$_get]("http_proxy"), t$361854$ == null ? environment[$_get]("HTTP_PROXY") : t$361854$);
        proxyCfg = checkProxy(proxy);
        if (proxyCfg != null) {
          return proxyCfg;
        }
      } else if (dart.test(url.isScheme("https"))) {
        let proxy = (t$361854$0 = environment[$_get]("https_proxy"), t$361854$0 == null ? environment[$_get]("HTTPS_PROXY") : t$361854$0);
        proxyCfg = checkProxy(proxy);
        if (proxyCfg != null) {
          return proxyCfg;
        }
      }
      return "DIRECT";
    }
  };
  (_http._HttpClient.new = function(_context) {
    this[_closing] = false;
    this[_closingForcefully] = false;
    this[_connectionTargets] = new (G$.IdentityMapOfString$_ConnectionTarget()).new();
    this[_credentials] = G$.JSArrayOf_Credentials().of([]);
    this[_proxyCredentials] = G$.JSArrayOf_ProxyCredentials().of([]);
    this[_connectionFactory] = null;
    this[_authenticate] = null;
    this[_authenticateProxy] = null;
    this[_findProxy] = C[1249] || CT.C1249;
    this[_idleTimeout] = C[1229] || CT.C1229;
    this[_badCertificateCallback] = null;
    this[_keyLog] = null;
    this.connectionTimeout = null;
    this.maxConnectionsPerHost = null;
    this.autoUncompress = true;
    this.userAgent = _http._getHttpVersion();
    this[_context$0] = _context;
    ;
  }).prototype = _http._HttpClient.prototype;
  dart.addRtiResources(_http._HttpClient, ["_http|_HttpClient", "_http|HttpClient"]);
  dart.setMethodSignature(_http._HttpClient, () => dart.global.Object.setPrototypeOf({
    open: T$13.StringAndStringAndint__ToFutureOfHttpClientRequest(),
    openUrl: T$13.StringAndUriToFutureOfHttpClientRequest(),
    get: T$13.StringAndintAndStringToFutureOfHttpClientRequest(),
    getUrl: T$13.UriToFutureOfHttpClientRequest(),
    post: T$13.StringAndintAndStringToFutureOfHttpClientRequest(),
    postUrl: T$13.UriToFutureOfHttpClientRequest(),
    put: T$13.StringAndintAndStringToFutureOfHttpClientRequest(),
    putUrl: T$13.UriToFutureOfHttpClientRequest(),
    delete: T$13.StringAndintAndStringToFutureOfHttpClientRequest(),
    deleteUrl: T$13.UriToFutureOfHttpClientRequest(),
    head: T$13.StringAndintAndStringToFutureOfHttpClientRequest(),
    headUrl: T$13.UriToFutureOfHttpClientRequest(),
    patch: T$13.StringAndintAndStringToFutureOfHttpClientRequest(),
    patchUrl: T$13.UriToFutureOfHttpClientRequest(),
    close: T$13.__Tovoid$30(),
    addCredentials: T$13.UriAndStringAndHttpClientCredentialsTovoid(),
    addProxyCredentials: T$13.StringAndintAndString__Tovoid(),
    [_isLoopback]: T$.StringTobool(),
    [_isValidToken]: T$.StringTobool(),
    [_openUrl]: T$13.StringAndUriToFutureOf_HttpClientRequest(),
    [_openUrlFromRequest]: T$13.StringAndUriAnd_HttpClientRequest__ToFutureOf_HttpClientRequest(),
    [_returnConnection]: T$13._HttpClientConnectionTovoid(),
    [_connectionClosed]: T$13._HttpClientConnectionTovoid(),
    [_connectionClosedNoFurtherClosing]: T$13._HttpClientConnectionTovoid(),
    [_connectionsChanged]: T$.VoidTovoid(),
    [_closeConnections]: T$1.boolTovoid(),
    [_getConnectionTarget]: T$13.StringAndintAndboolTo_ConnectionTarget(),
    [_getConnection]: T$13.UriAndStringAndint__ToFutureOf_ConnectionInfo$1(),
    [_findCredentials]: T$13.UriAnd_AuthenticationSchemeNTo_SiteCredentialsN(),
    [_findProxyCredentials]: T$13._ProxyAnd_AuthenticationSchemeNTo_ProxyCredentialsN(),
    [_removeCredentials]: T$13._CredentialsTovoid(),
    [_removeProxyCredentials]: T$13._CredentialsTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpClient))));
  dart.setStaticMethodSignature(_http._HttpClient, () => ['_startRequestTimelineEvent', '_isSubdomain', 'shouldCopyHeaderOnRedirect', '_findProxyFromEnvironment']);
  dart.setGetterSignature(_http._HttpClient, () => dart.global.Object.setPrototypeOf({idleTimeout: T$8.Duration()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpClient))));
  dart.setSetterSignature(_http._HttpClient, () => dart.global.Object.setPrototypeOf({
    idleTimeout: T$8.Duration(),
    badCertificateCallback: T$13.X509CertificateAndStringAndintToNbool(),
    keyLog: T$13.StringToNdynamic(),
    authenticate: T$13.UriAndStringAndStringNToNFutureOfbool(),
    authenticateProxy: T$13.StringAndintAndString__ToNFutureOfbool(),
    connectionFactory: T$13.UriAndStringNAndintNToNFutureOfConnectionTaskOfSocket(),
    findProxy: T$13.UriToNString()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpClient))));
  dart.setLibraryUri(_http._HttpClient, I[416]);
  dart.setFieldSignature(_http._HttpClient, () => dart.global.Object.setPrototypeOf({
    [_closing]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closingForcefully]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_connectionTargets]: {type: T$13.MapOfString$_ConnectionTarget(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_credentials]: {type: T$13.ListOf_Credentials(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_proxyCredentials]: {type: T$13.ListOf_ProxyCredentials(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_context$0]: {type: T$3.SecurityContextN(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_connectionFactory]: {type: T$13.UriAndStringNAndintNToNFutureOfConnectionTaskOfSocket(), isConst: false, isFinal: false},
    [_authenticate]: {type: T$13.UriAndStringAndStringNToNFutureOfbool(), isConst: false, isFinal: false},
    [_authenticateProxy]: {type: T$13.StringAndintAndString__ToNFutureOfbool(), isConst: false, isFinal: false},
    [_findProxy]: {type: T$13.UriToNString(), isConst: false, isFinal: false},
    [_idleTimeout]: {type: T$8.Duration(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_badCertificateCallback]: {type: T$13.X509CertificateAndStringAndintToNbool(), isConst: false, isFinal: false},
    [_keyLog]: {type: T$13.StringToNdynamic(), isConst: false, isFinal: false},
    connectionTimeout: {type: T$1.DurationN(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxConnectionsPerHost: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    autoUncompress: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    userAgent: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpClient))));
  dart.setStaticFieldSignature(_http._HttpClient, () => ['_platformEnvironmentCache']);
  dart.defineLazy(_http._HttpClient, {
    /*_http._HttpClient._platformEnvironmentCache*/get _platformEnvironmentCache() {
      return io.Platform.environment;
    }
  }, false);
  var _state$1 = dart.privateName(_http, "_state");
  var _idleMark = dart.privateName(_http, "_idleMark");
  var _markActive = dart.privateName(_http, "_markActive");
  var _markIdle = dart.privateName(_http, "_markIdle");
  var _handleRequest = dart.privateName(_http, "_handleRequest");
  var _isActive = dart.privateName(_http, "_isActive");
  var _isIdle = dart.privateName(_http, "_isIdle");
  var _isDetached = dart.privateName(_http, "_isDetached");
  const LinkedListEntry__ServiceObject$36 = class LinkedListEntry__ServiceObject extends G$.LinkedListEntryOf_HttpConnection() {};
  (LinkedListEntry__ServiceObject$36.new = function() {
    _http._ServiceObject[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(LinkedListEntry__ServiceObject$36).new.call(this);
  }).prototype = LinkedListEntry__ServiceObject$36.prototype;
  dart.applyMixin(LinkedListEntry__ServiceObject$36, _http._ServiceObject);
  _http._HttpConnection = class _HttpConnection extends LinkedListEntry__ServiceObject$36 {
    static ['_#new#tearOff'](_socket, _httpServer) {
      if (_socket == null) dart.nullFailed(I[420], 3066, 24, "_socket");
      if (_httpServer == null) dart.nullFailed(I[420], 3066, 38, "_httpServer");
      return new _http._HttpConnection.new(_socket, _httpServer);
    }
    markIdle() {
      this[_idleMark] = true;
    }
    get isMarkedIdle() {
      return this[_idleMark];
    }
    destroy() {
      if (this[_state$1] === 2 || this[_state$1] === 3) return;
      this[_state$1] = 2;
      this[_socket$0].destroy();
      this[_httpServer$][_connectionClosed](this);
      _http._HttpConnection._connections[$remove](this[_serviceId$]);
    }
    detachSocket() {
      this[_state$1] = 3;
      this[_httpServer$][_connectionClosed](this);
      let detachedIncoming = this[_httpParser].detachIncoming();
      return dart.nullCheck(this[_streamFuture]).then(T$3.Socket(), dart.fn(_ => {
        _http._HttpConnection._connections[$remove](this[_serviceId$]);
        return new _http._DetachedSocket.new(this[_socket$0], detachedIncoming);
      }, T$13.dynamicTo_DetachedSocket()));
    }
    get connectionInfo() {
      return _http._HttpConnectionInfo.create(this[_socket$0]);
    }
    get [_isActive]() {
      return this[_state$1] === 0;
    }
    get [_isIdle]() {
      return this[_state$1] === 1;
    }
    get [_isClosing]() {
      return this[_state$1] === 2;
    }
    get [_isDetached]() {
      return this[_state$1] === 3;
    }
    get [_serviceTypePath$]() {
      return "io/http/serverconnections";
    }
    get [_serviceTypeName$]() {
      return "HttpServerConnection";
    }
  };
  (_http._HttpConnection.new = function(_socket, _httpServer) {
    if (_socket == null) dart.nullFailed(I[420], 3066, 24, "_socket");
    if (_httpServer == null) dart.nullFailed(I[420], 3066, 38, "_httpServer");
    this[_state$1] = 1;
    this[_subscription$0] = null;
    this[_idleMark] = false;
    this[_streamFuture] = null;
    this[_socket$0] = _socket;
    this[_httpServer$] = _httpServer;
    this[_httpParser] = _http._HttpParser.requestParser();
    this.$ti = this.$ti || T$13._HttpConnection();
    dart.global.Object.getPrototypeOf(_http._HttpConnection).new.call(this);
    _http._HttpConnection._connections[$_set](this[_serviceId$], this);
    this[_httpParser].listenToStream(this[_socket$0]);
    this[_subscription$0] = this[_httpParser].listen(dart.fn(incoming => {
      if (incoming == null) dart.nullFailed(I[420], 3070, 41, "incoming");
      this[_httpServer$][_markActive](this);
      incoming.dataDone.then(T$.Null(), dart.fn(closing => {
        if (closing == null) dart.nullFailed(I[420], 3073, 31, "closing");
        if (dart.test(closing)) this.destroy();
      }, T$.boolToNull()));
      dart.nullCheck(this[_subscription$0]).pause();
      this[_state$1] = 0;
      let outgoing = new _http._HttpOutgoing.new(this[_socket$0]);
      let response = new _http._HttpResponse.new(dart.nullCheck(incoming.uri), incoming.headers.protocolVersion, outgoing, this[_httpServer$].defaultResponseHeaders, this[_httpServer$].serverHeader);
      if (incoming.statusCode === 400) {
        response.statusCode = 400;
      }
      let request = new _http._HttpRequest.new(response, incoming, this[_httpServer$], this);
      this[_streamFuture] = outgoing.done.then(T$.dynamic(), dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[420], 3092, 43, "_");
        response.deadline = null;
        if (this[_state$1] === 3) return;
        if (dart.test(response.persistentConnection) && dart.test(request.persistentConnection) && dart.test(incoming.fullBodyRead) && !dart.test(this[_httpParser].upgrade) && !dart.test(this[_httpServer$].closed)) {
          this[_state$1] = 1;
          this[_idleMark] = false;
          this[_httpServer$][_markIdle](this);
          dart.nullCheck(this[_subscription$0]).resume();
        } else {
          this.destroy();
        }
      }, T$13.SocketToNull()), {onError: dart.fn(_ => {
          this.destroy();
        }, T$0.dynamicToNull())});
      outgoing.ignoreBody = request.method === "HEAD";
      response[_httpRequest$] = request;
      this[_httpServer$][_handleRequest](request);
    }, T$13._HttpIncomingTovoid()), {onDone: dart.fn(() => {
        this.destroy();
      }, T$.VoidTovoid()), onError: dart.fn(error => {
        this.destroy();
      }, T$0.dynamicToNull())});
  }).prototype = _http._HttpConnection.prototype;
  dart.addRtiResources(_http._HttpConnection, ["_http|_HttpConnection"]);
  dart.setMethodSignature(_http._HttpConnection, () => dart.global.Object.setPrototypeOf({
    markIdle: T$.VoidTovoid(),
    destroy: T$.VoidTovoid(),
    detachSocket: T$13.VoidToFutureOfSocket()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpConnection))));
  dart.setGetterSignature(_http._HttpConnection, () => dart.global.Object.setPrototypeOf({
    isMarkedIdle: T$.bool(),
    connectionInfo: T$13.HttpConnectionInfoN(),
    [_isActive]: T$.bool(),
    [_isIdle]: T$.bool(),
    [_isClosing]: T$.bool(),
    [_isDetached]: T$.bool(),
    [_serviceTypePath$]: T$.String(),
    [_serviceTypeName$]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpConnection))));
  dart.setLibraryUri(_http._HttpConnection, I[416]);
  dart.setFieldSignature(_http._HttpConnection, () => dart.global.Object.setPrototypeOf({
    [_socket$0]: {type: T$3.Socket(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_httpServer$]: {type: T$13._HttpServer(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_httpParser]: {type: T$13._HttpParser(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_state$1]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_subscription$0]: {type: T$13.StreamSubscriptionN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_idleMark]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_streamFuture]: {type: T$1.FutureN(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpConnection))));
  dart.setStaticFieldSignature(_http._HttpConnection, () => ['_ACTIVE', '_IDLE', '_CLOSING', '_DETACHED', '_connections']);
  dart.defineLazy(_http._HttpConnection, {
    /*_http._HttpConnection._ACTIVE*/get _ACTIVE() {
      return 0;
    },
    /*_http._HttpConnection._IDLE*/get _IDLE() {
      return 1;
    },
    /*_http._HttpConnection._CLOSING*/get _CLOSING() {
      return 2;
    },
    /*_http._HttpConnection._DETACHED*/get _DETACHED() {
      return 3;
    },
    /*_http._HttpConnection._connections*/get _connections() {
      return new (G$.IdentityMapOfint$_HttpConnection()).new();
    }
  }, false);
  _http.ServerSocketBase$ = dart.generic(T => {
    var __t$ServerSocketBaseOfT = () => (__t$ServerSocketBaseOfT = dart.constFn(T[_eval]("_http|ServerSocketBase<0>")))();
    class ServerSocketBase extends core.Object {}
    (ServerSocketBase.new = function() {
      this.$ti = this.$ti || __t$ServerSocketBaseOfT();
      ;
    }).prototype = ServerSocketBase.prototype;
    dart.addRtiResources(ServerSocketBase, ["_http|ServerSocketBase", "async|Stream"]);
    dart.setLibraryUri(ServerSocketBase, I[416]);
    return ServerSocketBase;
  });
  _http.ServerSocketBase = _http.ServerSocketBase$();
  var _activeConnections = dart.privateName(_http, "_activeConnections");
  var _idleConnections = dart.privateName(_http, "_idleConnections");
  var _serverSocket$ = dart.privateName(_http, "_serverSocket");
  var _closeServer$ = dart.privateName(_http, "_closeServer");
  var _maybePerformCleanup$ = dart.privateName(_http, "_maybePerformCleanup");
  const Stream__ServiceObject$36 = class Stream__ServiceObject extends G$.StreamOfHttpRequest() {};
  (Stream__ServiceObject$36.new = function() {
    _http._ServiceObject[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(Stream__ServiceObject$36).new.call(this);
  }).prototype = Stream__ServiceObject$36.prototype;
  dart.applyMixin(Stream__ServiceObject$36, _http._ServiceObject);
  _http._HttpServer = class _HttpServer extends Stream__ServiceObject$36 {
    static bind(address, port, backlog, v6Only, shared) {
      if (port == null) dart.nullFailed(I[420], 3187, 20, "port");
      if (backlog == null) dart.nullFailed(I[420], 3187, 30, "backlog");
      if (v6Only == null) dart.nullFailed(I[420], 3187, 44, "v6Only");
      if (shared == null) dart.nullFailed(I[420], 3187, 57, "shared");
      return io.ServerSocket.bind(address, port, {backlog: backlog, v6Only: v6Only, shared: shared}).then(T$13.HttpServer(), dart.fn(socket => {
        if (socket == null) dart.nullFailed(I[420], 3190, 28, "socket");
        return new _http._HttpServer.__(socket, true);
      }, T$13.ServerSocketTo_HttpServer()));
    }
    static bindSecure(address, port, context, backlog, v6Only, requestClientCertificate, shared) {
      if (port == null) dart.nullFailed(I[420], 3197, 11, "port");
      if (backlog == null) dart.nullFailed(I[420], 3199, 11, "backlog");
      if (v6Only == null) dart.nullFailed(I[420], 3200, 12, "v6Only");
      if (requestClientCertificate == null) dart.nullFailed(I[420], 3201, 12, "requestClientCertificate");
      if (shared == null) dart.nullFailed(I[420], 3202, 12, "shared");
      return io.SecureServerSocket.bind(address, port, context, {backlog: backlog, v6Only: v6Only, requestClientCertificate: requestClientCertificate, shared: shared}).then(T$13.HttpServer(), dart.fn(socket => {
        if (socket == null) dart.nullFailed(I[420], 3208, 28, "socket");
        return new _http._HttpServer.__(socket, true);
      }, T$13.SecureServerSocketTo_HttpServer()));
    }
    static ['_#_#tearOff'](_serverSocket, _closeServer) {
      if (_serverSocket == null) dart.nullFailed(I[420], 3213, 22, "_serverSocket");
      if (_closeServer == null) dart.nullFailed(I[420], 3213, 42, "_closeServer");
      return new _http._HttpServer.__(_serverSocket, _closeServer);
    }
    static ['_#listenOn#tearOff'](_serverSocket) {
      if (_serverSocket == null) dart.nullFailed(I[420], 3220, 29, "_serverSocket");
      return new _http._HttpServer.listenOn(_serverSocket);
    }
    static _initDefaultResponseHeaders() {
      let defaultResponseHeaders = new _http._HttpHeaders.new("1.1");
      defaultResponseHeaders.contentType = _http.ContentType.text;
      defaultResponseHeaders.set("X-Frame-Options", "SAMEORIGIN");
      defaultResponseHeaders.set("X-Content-Type-Options", "nosniff");
      defaultResponseHeaders.set("X-XSS-Protection", "1; mode=block");
      return defaultResponseHeaders;
    }
    get idleTimeout() {
      return this[_idleTimeout];
    }
    set idleTimeout(duration) {
      let idleTimer = this[_idleTimer];
      if (idleTimer != null) {
        idleTimer.cancel();
        this[_idleTimer] = null;
      }
      this[_idleTimeout] = duration;
      if (duration != null) {
        this[_idleTimer] = async.Timer.periodic(duration, dart.fn(_ => {
          if (_ == null) dart.nullFailed(I[420], 3247, 46, "_");
          for (let idle of this[_idleConnections][$toList]()) {
            if (dart.test(idle.isMarkedIdle)) {
              idle.destroy();
            } else {
              idle.markIdle();
            }
          }
        }, T$13.TimerTovoid()));
      }
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      this[_serverSocket$].listen(dart.fn(socket => {
        if (socket == null) dart.nullFailed(I[420], 3264, 34, "socket");
        if (!dart.equals(socket.address.type, io.InternetAddressType.unix)) {
          socket.setOption(io.SocketOption.tcpNoDelay, true);
        }
        let connection = new _http._HttpConnection.new(socket, this);
        this[_idleConnections].add(connection);
      }, T$13.SocketTovoid()), {onError: dart.fn((error, stackTrace) => {
          if (!T$13.HandshakeException()[_is](error)) {
            this[_controller$0].addError(T$.Object()[_as](error), T$.StackTraceN()[_as](stackTrace));
          }
        }, T$.dynamicAnddynamicToNull()), onDone: dart.bind(this[_controller$0], 'close')});
      return this[_controller$0].stream.listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    close(opts) {
      let force = opts && 'force' in opts ? opts.force : false;
      if (force == null) dart.nullFailed(I[420], 3282, 22, "force");
      this.closed = true;
      let result = null;
      if (dart.test(this[_closeServer$])) {
        result = this[_serverSocket$].close();
      } else {
        result = async.Future.value();
      }
      this.idleTimeout = null;
      if (dart.test(force)) {
        for (let c of this[_activeConnections][$toList]()) {
          c.destroy();
        }
        if (!dart.test(this[_activeConnections].isEmpty)) dart.assertFailed(null, I[420], 3295, 14, "_activeConnections.isEmpty");
      }
      for (let c of this[_idleConnections][$toList]()) {
        c.destroy();
      }
      this[_maybePerformCleanup$]();
      return result;
    }
    [_maybePerformCleanup$]() {
      let sessionManager = this[_sessionManagerInstance];
      if (dart.test(this.closed) && dart.test(this[_idleConnections].isEmpty) && dart.test(this[_activeConnections].isEmpty) && sessionManager != null) {
        sessionManager.close();
        this[_sessionManagerInstance] = null;
        _http._HttpServer._servers[$remove](this[_serviceId$]);
      }
    }
    get port() {
      if (dart.test(this.closed)) dart.throw(new _http.HttpException.new("HttpServer is not bound to a socket"));
      return this[_serverSocket$].port;
    }
    get address() {
      if (dart.test(this.closed)) dart.throw(new _http.HttpException.new("HttpServer is not bound to a socket"));
      return this[_serverSocket$].address;
    }
    set sessionTimeout(timeout) {
      if (timeout == null) dart.nullFailed(I[420], 3326, 26, "timeout");
      this[_sessionManager$].sessionTimeout = timeout;
    }
    [_handleRequest](request) {
      if (request == null) dart.nullFailed(I[420], 3330, 36, "request");
      if (!dart.test(this.closed)) {
        this[_controller$0].add(request);
      } else {
        request[_httpConnection$].destroy();
      }
    }
    [_connectionClosed](connection) {
      if (connection == null) dart.nullFailed(I[420], 3338, 42, "connection");
      connection.unlink();
      this[_maybePerformCleanup$]();
    }
    [_markIdle](connection) {
      if (connection == null) dart.nullFailed(I[420], 3344, 34, "connection");
      this[_activeConnections].remove(connection);
      this[_idleConnections].add(connection);
    }
    [_markActive](connection) {
      if (connection == null) dart.nullFailed(I[420], 3349, 36, "connection");
      this[_idleConnections].remove(connection);
      this[_activeConnections].add(connection);
    }
    get [_sessionManager$]() {
      let t$361854;
      t$361854 = this[_sessionManagerInstance];
      return t$361854 == null ? this[_sessionManagerInstance] = new _http._HttpSessionManager.new() : t$361854;
    }
    connectionsInfo() {
      let t$361854, t$361854$, t$361854$0;
      let result = new _http.HttpConnectionsInfo.new();
      result.total = dart.notNull(this[_activeConnections].length) + dart.notNull(this[_idleConnections].length);
      for (let conn of this[_activeConnections]) {
        if (dart.test(conn[_isActive])) {
          t$361854 = result;
          t$361854.active = dart.notNull(t$361854.active) + 1;
        } else {
          if (!dart.test(conn[_isClosing])) dart.assertFailed(null, I[420], 3365, 16, "conn._isClosing");
          t$361854$ = result;
          t$361854$.closing = dart.notNull(t$361854$.closing) + 1;
        }
      }
      for (let conn of this[_idleConnections]) {
        t$361854$0 = result;
        t$361854$0.idle = dart.notNull(t$361854$0.idle) + 1;
        if (!dart.test(conn[_isIdle])) dart.assertFailed(null, I[420], 3371, 14, "conn._isIdle");
      }
      return result;
    }
    get [_serviceTypePath$]() {
      return "io/http/servers";
    }
    get [_serviceTypeName$]() {
      return "HttpServer";
    }
  };
  (_http._HttpServer.__ = function(_serverSocket, _closeServer) {
    if (_serverSocket == null) dart.nullFailed(I[420], 3213, 22, "_serverSocket");
    if (_closeServer == null) dart.nullFailed(I[420], 3213, 42, "_closeServer");
    this.serverHeader = null;
    this.defaultResponseHeaders = _http._HttpServer._initDefaultResponseHeaders();
    this.autoCompress = false;
    this[_idleTimeout] = null;
    this[_idleTimer] = null;
    this[_sessionManagerInstance] = null;
    this.closed = false;
    this[_activeConnections] = new (G$.LinkedListOf_HttpConnection()).new();
    this[_idleConnections] = new (G$.LinkedListOf_HttpConnection()).new();
    this[_serverSocket$] = _serverSocket;
    this[_closeServer$] = _closeServer;
    this[_controller$0] = G$.StreamControllerOfHttpRequest().new({sync: true});
    this.$ti = this.$ti || T$13._HttpServer();
    dart.global.Object.getPrototypeOf(_http._HttpServer).new.call(this);
    this[_controller$0].onCancel = dart.bind(this, 'close');
    this.idleTimeout = C[1219] || CT.C1219;
    _http._HttpServer._servers[$_set](this[_serviceId$], this);
  }).prototype = _http._HttpServer.prototype;
  (_http._HttpServer.listenOn = function(_serverSocket) {
    if (_serverSocket == null) dart.nullFailed(I[420], 3220, 29, "_serverSocket");
    this.serverHeader = null;
    this.defaultResponseHeaders = _http._HttpServer._initDefaultResponseHeaders();
    this.autoCompress = false;
    this[_idleTimeout] = null;
    this[_idleTimer] = null;
    this[_sessionManagerInstance] = null;
    this.closed = false;
    this[_activeConnections] = new (G$.LinkedListOf_HttpConnection()).new();
    this[_idleConnections] = new (G$.LinkedListOf_HttpConnection()).new();
    this[_serverSocket$] = _serverSocket;
    this[_closeServer$] = false;
    this[_controller$0] = G$.StreamControllerOfHttpRequest().new({sync: true});
    this.$ti = this.$ti || T$13._HttpServer();
    dart.global.Object.getPrototypeOf(_http._HttpServer).new.call(this);
    this[_controller$0].onCancel = dart.bind(this, 'close');
    this.idleTimeout = C[1219] || CT.C1219;
    _http._HttpServer._servers[$_set](this[_serviceId$], this);
  }).prototype = _http._HttpServer.prototype;
  dart.addRtiResources(_http._HttpServer, ["_http|_HttpServer", "_http|HttpServer", "async|Stream"]);
  dart.setMethodSignature(_http._HttpServer, () => dart.global.Object.setPrototypeOf({
    listen: T$13.Fn__ToStreamSubscriptionOfHttpRequest(),
    close: T$13.__ToFuture(),
    [_maybePerformCleanup$]: T$.VoidTovoid(),
    [_handleRequest]: T$13._HttpRequestTovoid(),
    [_connectionClosed]: T$13._HttpConnectionTovoid(),
    [_markIdle]: T$13._HttpConnectionTovoid(),
    [_markActive]: T$13._HttpConnectionTovoid(),
    connectionsInfo: T$13.VoidToHttpConnectionsInfo()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpServer))));
  dart.setStaticMethodSignature(_http._HttpServer, () => ['bind', 'bindSecure', '_initDefaultResponseHeaders']);
  dart.setGetterSignature(_http._HttpServer, () => dart.global.Object.setPrototypeOf({
    idleTimeout: T$1.DurationN(),
    port: T$.int(),
    address: T$3.InternetAddress(),
    [_sessionManager$]: T$13._HttpSessionManager(),
    [_serviceTypePath$]: T$.String(),
    [_serviceTypeName$]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpServer))));
  dart.setSetterSignature(_http._HttpServer, () => dart.global.Object.setPrototypeOf({
    idleTimeout: T$1.DurationN(),
    sessionTimeout: T$.int()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpServer))));
  dart.setLibraryUri(_http._HttpServer, I[416]);
  dart.setFieldSignature(_http._HttpServer, () => dart.global.Object.setPrototypeOf({
    serverHeader: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    defaultResponseHeaders: {type: T$13.HttpHeaders(), isConst: false, isFinal: true, libraryUri: I[416]},
    autoCompress: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_idleTimeout]: {type: T$1.DurationN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_idleTimer]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_sessionManagerInstance]: {type: T$13._HttpSessionManagerN(), isConst: false, isFinal: false, libraryUri: I[416]},
    closed: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_serverSocket$]: {type: T$13.ServerSocketBaseOfSocket(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_closeServer$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_activeConnections]: {type: T$13.LinkedListOf_HttpConnection(), isConst: false, isFinal: true, libraryUri: I[24]},
    [_idleConnections]: {type: T$13.LinkedListOf_HttpConnection(), isConst: false, isFinal: true, libraryUri: I[24]},
    [_controller$0]: {type: T$13.StreamControllerOfHttpRequest(), isConst: false, isFinal: true, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpServer))));
  dart.setStaticFieldSignature(_http._HttpServer, () => ['_servers']);
  dart.defineLazy(_http._HttpServer, {
    /*_http._HttpServer._servers*/get _servers() {
      return new (G$.IdentityMapOfint$_HttpServer()).new();
    }
  }, false);
  const proxies = _ProxyConfiguration_proxies;
  _http._ProxyConfiguration = class _ProxyConfiguration extends core.Object {
    get proxies() {
      return this[proxies];
    }
    set proxies(value) {
      super.proxies = value;
    }
    static ['_#new#tearOff'](configuration) {
      if (configuration == null) dart.nullFailed(I[420], 3399, 30, "configuration");
      return new _http._ProxyConfiguration.new(configuration);
    }
    static ['_#direct#tearOff']() {
      return new _http._ProxyConfiguration.direct();
    }
  };
  (_http._ProxyConfiguration.new = function(configuration) {
    if (configuration == null) dart.nullFailed(I[420], 3399, 30, "configuration");
    this[proxies] = G$.JSArrayOf_Proxy().of([]);
    if (configuration == null) {
      dart.throw(new _http.HttpException.new("Invalid proxy configuration " + dart.str(configuration)));
    }
    let list = configuration[$split](";");
    for (let proxy of list) {
      proxy = proxy[$trim]();
      if (proxy[$isNotEmpty]) {
        if (proxy[$startsWith]("PROXY ")) {
          let username = null;
          let password = null;
          proxy = proxy[$substring]("PROXY ".length)[$trim]();
          let at = proxy[$lastIndexOf]("@");
          if (at !== -1) {
            let userinfo = proxy[$substring](0, at)[$trim]();
            proxy = proxy[$substring](at + 1)[$trim]();
            let colon = userinfo[$indexOf](":");
            if (colon === -1 || colon === 0 || colon === proxy.length - 1) {
              dart.throw(new _http.HttpException.new("Invalid proxy configuration " + dart.str(configuration)));
            }
            username = userinfo[$substring](0, colon)[$trim]();
            password = userinfo[$substring](colon + 1)[$trim]();
          }
          let colon = proxy[$lastIndexOf](":");
          if (colon === -1 || colon === 0 || colon === proxy.length - 1) {
            dart.throw(new _http.HttpException.new("Invalid proxy configuration " + dart.str(configuration)));
          }
          let host = proxy[$substring](0, colon)[$trim]();
          if (host[$startsWith]("[") && host[$endsWith]("]")) {
            host = host[$substring](1, host.length - 1);
          }
          let portString = proxy[$substring](colon + 1)[$trim]();
          let port = null;
          try {
            port = core.int.parse(portString);
          } catch (t$36$35e) {
            let t$36$35ex = dart.getThrown(t$36$35e);
            if (T$8.FormatException()[_is](t$36$35ex)) {
              dart.throw(new _http.HttpException.new("Invalid proxy configuration " + dart.str(configuration) + ", " + "invalid port '" + portString + "'"));
            } else
              throw t$36$35e;
          }
          this.proxies[$add](new _http._Proxy.new(host, port, username, password));
        } else if (proxy[$trim]() === "DIRECT") {
          this.proxies[$add](new _http._Proxy.direct());
        } else {
          dart.throw(new _http.HttpException.new("Invalid proxy configuration " + dart.str(configuration)));
        }
      }
    }
  }).prototype = _http._ProxyConfiguration.prototype;
  (_http._ProxyConfiguration.direct = function() {
    this[proxies] = C[1251] || CT.C1251;
    ;
  }).prototype = _http._ProxyConfiguration.prototype;
  dart.addRtiResources(_http._ProxyConfiguration, ["_http|_ProxyConfiguration"]);
  dart.setLibraryUri(_http._ProxyConfiguration, I[416]);
  dart.setFieldSignature(_http._ProxyConfiguration, () => dart.global.Object.setPrototypeOf({proxies: {type: T$13.ListOf_Proxy(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._ProxyConfiguration))));
  dart.setStaticFieldSignature(_http._ProxyConfiguration, () => ['PROXY_PREFIX', 'DIRECT_PREFIX']);
  dart.defineLazy(_http._ProxyConfiguration, {
    /*_http._ProxyConfiguration.PROXY_PREFIX*/get PROXY_PREFIX() {
      return "PROXY ";
    },
    /*_http._ProxyConfiguration.DIRECT_PREFIX*/get DIRECT_PREFIX() {
      return "DIRECT";
    }
  }, false);
  const host$ = _Proxy_host;
  const port$1 = _Proxy_port;
  const username$ = _Proxy_username;
  const password$ = _Proxy_password;
  const isDirect = _Proxy_isDirect;
  _http._Proxy = class _Proxy extends core.Object {
    get host() {
      return this[host$];
    }
    set host(value) {
      super.host = value;
    }
    get port() {
      return this[port$1];
    }
    set port(value) {
      super.port = value;
    }
    get username() {
      return this[username$];
    }
    set username(value) {
      super.username = value;
    }
    get password() {
      return this[password$];
    }
    set password(value) {
      super.password = value;
    }
    get isDirect() {
      return this[isDirect];
    }
    set isDirect(value) {
      super.isDirect = value;
    }
    static ['_#new#tearOff'](host, port, username, password) {
      if (host == null) dart.nullFailed(I[420], 3463, 28, "host");
      if (port == null) dart.nullFailed(I[420], 3463, 43, "port");
      return new _http._Proxy.new(host, port, username, password);
    }
    static ['_#direct#tearOff']() {
      return new _http._Proxy.direct();
    }
    get isAuthenticated() {
      return this.username != null;
    }
  };
  (_http._Proxy.new = function(host, port, username, password) {
    if (host == null) dart.nullFailed(I[420], 3463, 28, "host");
    if (port == null) dart.nullFailed(I[420], 3463, 43, "port");
    this[host$] = host;
    this[port$1] = port;
    this[username$] = username;
    this[password$] = password;
    this[isDirect] = false;
    ;
  }).prototype = _http._Proxy.prototype;
  (_http._Proxy.direct = function() {
    this[host$] = null;
    this[port$1] = null;
    this[username$] = null;
    this[password$] = null;
    this[isDirect] = true;
    ;
  }).prototype = _http._Proxy.prototype;
  dart.addRtiResources(_http._Proxy, ["_http|_Proxy"]);
  dart.setGetterSignature(_http._Proxy, () => dart.global.Object.setPrototypeOf({isAuthenticated: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http._Proxy))));
  dart.setLibraryUri(_http._Proxy, I[416]);
  dart.setFieldSignature(_http._Proxy, () => dart.global.Object.setPrototypeOf({
    host: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    port: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    username: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    password: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    isDirect: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._Proxy))));
  _http._HttpConnectionInfo = class _HttpConnectionInfo extends core.Object {
    static ['_#new#tearOff'](remoteAddress, remotePort, localPort) {
      if (remoteAddress == null) dart.nullFailed(I[420], 3480, 28, "remoteAddress");
      if (remotePort == null) dart.nullFailed(I[420], 3480, 48, "remotePort");
      if (localPort == null) dart.nullFailed(I[420], 3480, 65, "localPort");
      return new _http._HttpConnectionInfo.new(remoteAddress, remotePort, localPort);
    }
    static create(socket) {
      if (socket == null) dart.nullFailed(I[420], 3482, 45, "socket");
      if (socket == null) return null;
      try {
        return new _http._HttpConnectionInfo.new(socket.remoteAddress, socket.remotePort, socket.port);
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        if (T$.Object()[_is](e)) {
        } else
          throw t$36$35e;
      }
      return null;
    }
  };
  (_http._HttpConnectionInfo.new = function(remoteAddress, remotePort, localPort) {
    if (remoteAddress == null) dart.nullFailed(I[420], 3480, 28, "remoteAddress");
    if (remotePort == null) dart.nullFailed(I[420], 3480, 48, "remotePort");
    if (localPort == null) dart.nullFailed(I[420], 3480, 65, "localPort");
    this.remoteAddress = remoteAddress;
    this.remotePort = remotePort;
    this.localPort = localPort;
    ;
  }).prototype = _http._HttpConnectionInfo.prototype;
  dart.addRtiResources(_http._HttpConnectionInfo, ["_http|_HttpConnectionInfo", "_http|HttpConnectionInfo"]);
  dart.setStaticMethodSignature(_http._HttpConnectionInfo, () => ['create']);
  dart.setLibraryUri(_http._HttpConnectionInfo, I[416]);
  dart.setFieldSignature(_http._HttpConnectionInfo, () => dart.global.Object.setPrototypeOf({
    remoteAddress: {type: T$3.InternetAddress(), isConst: false, isFinal: false, libraryUri: I[119]},
    remotePort: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    localPort: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpConnectionInfo))));
  var _detachRaw$ = dart.privateName(_http, "_detachRaw");
  _http._DetachedSocket = class _DetachedSocket extends G$.StreamOfUint8List() {
    static ['_#new#tearOff'](_socket, _incoming) {
      if (_socket == null) dart.nullFailed(I[420], 3496, 24, "_socket");
      if (_incoming == null) dart.nullFailed(I[420], 3496, 38, "_incoming");
      return new _http._DetachedSocket.new(_socket, _incoming);
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      return this[_incoming$].listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    get encoding() {
      return this[_socket$0].encoding;
    }
    set encoding(value) {
      if (value == null) dart.nullFailed(I[420], 3506, 30, "value");
      this[_socket$0].encoding = value;
    }
    write(obj) {
      this[_socket$0].write(obj);
    }
    writeln(obj = "") {
      this[_socket$0].writeln(obj);
    }
    writeCharCode(charCode) {
      if (charCode == null) dart.nullFailed(I[420], 3518, 26, "charCode");
      this[_socket$0].writeCharCode(charCode);
    }
    writeAll(objects, separator = "") {
      if (objects == null) dart.nullFailed(I[420], 3522, 26, "objects");
      if (separator == null) dart.nullFailed(I[420], 3522, 43, "separator");
      this[_socket$0].writeAll(objects, separator);
    }
    add(bytes) {
      T$.ListOfint()[_as](bytes);
      if (bytes == null) dart.nullFailed(I[420], 3526, 22, "bytes");
      this[_socket$0].add(bytes);
    }
    addError(error, stackTrace = null) {
      if (error == null) dart.nullFailed(I[420], 3530, 24, "error");
      return this[_socket$0].addError(error, stackTrace);
    }
    addStream(stream) {
      T$2.StreamOfListOfint()[_as](stream);
      if (stream == null) dart.nullFailed(I[420], 3533, 38, "stream");
      return this[_socket$0].addStream(stream);
    }
    destroy() {
      this[_socket$0].destroy();
    }
    flush() {
      return this[_socket$0].flush();
    }
    close() {
      return this[_socket$0].close();
    }
    get done() {
      return this[_socket$0].done;
    }
    get port() {
      return this[_socket$0].port;
    }
    get address() {
      return this[_socket$0].address;
    }
    get remoteAddress() {
      return this[_socket$0].remoteAddress;
    }
    get remotePort() {
      return this[_socket$0].remotePort;
    }
    setOption(option, enabled) {
      if (option == null) dart.nullFailed(I[420], 3555, 31, "option");
      if (enabled == null) dart.nullFailed(I[420], 3555, 44, "enabled");
      return this[_socket$0].setOption(option, enabled);
    }
    getRawOption(option) {
      if (option == null) dart.nullFailed(I[420], 3559, 42, "option");
      return this[_socket$0].getRawOption(option);
    }
    setRawOption(option) {
      if (option == null) dart.nullFailed(I[420], 3563, 37, "option");
      this[_socket$0].setRawOption(option);
    }
    get [__IOSink_encoding]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[1242] || CT.C1242)));
    }
    set [__IOSink_encoding](value) {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.setter(C[1243] || CT.C1243, value)));
    }
    get [__IOSink_encoding_isSet]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.getter(C[1244] || CT.C1244)));
    }
    set [__IOSink_encoding_isSet](value) {
      if (value == null) dart.nullFailed(I[420], 3492, 7, "value");
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.setter(C[1245] || CT.C1245, value)));
    }
    [_detachRaw]() {
      return dart.throw(core.NoSuchMethodError.withInvocation(this, new core._Invocation.method(C[1254] || CT.C1254, null, [], null)));
    }
  };
  (_http._DetachedSocket.new = function(_socket, _incoming) {
    if (_socket == null) dart.nullFailed(I[420], 3496, 24, "_socket");
    if (_incoming == null) dart.nullFailed(I[420], 3496, 38, "_incoming");
    this[_socket$0] = _socket;
    this[_incoming$] = _incoming;
    this.$ti = this.$ti || T$13._DetachedSocket();
    dart.global.Object.getPrototypeOf(_http._DetachedSocket).new.call(this);
    ;
  }).prototype = _http._DetachedSocket.prototype;
  dart.addRtiResources(_http._DetachedSocket, ["_http|_DetachedSocket", "io|Socket", "async|Stream", "io|IOSink", "async|StreamSink", "core|StringSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setMethodSignature(_http._DetachedSocket, () => dart.global.Object.setPrototypeOf({
    listen: T$2.Fn__ToStreamSubscriptionOfUint8List(),
    write: T$.ObjectNTovoid(),
    writeln: T$0.ObjectNTovoid$1(),
    writeCharCode: T$.intTovoid(),
    writeAll: T$2.IterableAndStringTovoid(),
    add: T$.ObjectNTovoid(),
    addError: T$1.ObjectAndStackTraceNTovoid(),
    addStream: T$.ObjectNToFuture(),
    destroy: T$.VoidTovoid(),
    flush: T$.VoidToFuture(),
    close: T$.VoidToFuture(),
    setOption: T$3.SocketOptionAndboolTobool(),
    getRawOption: T$3.RawSocketOptionToUint8List(),
    setRawOption: T$3.RawSocketOptionTovoid(),
    [_detachRaw]: T$13.VoidToFutureOfListOfObjectN()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._DetachedSocket))));
  dart.setGetterSignature(_http._DetachedSocket, () => dart.global.Object.setPrototypeOf({
    encoding: T$2.Encoding(),
    done: T$0.Future(),
    port: T$.int(),
    address: T$3.InternetAddress(),
    remoteAddress: T$3.InternetAddress(),
    remotePort: T$.int(),
    [__IOSink_encoding]: T$2.EncodingN(),
    [__IOSink_encoding_isSet]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._DetachedSocket))));
  dart.setSetterSignature(_http._DetachedSocket, () => dart.global.Object.setPrototypeOf({
    encoding: T$2.Encoding(),
    [__IOSink_encoding]: T$2.EncodingN(),
    [__IOSink_encoding_isSet]: T$.bool()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._DetachedSocket))));
  dart.setLibraryUri(_http._DetachedSocket, I[416]);
  dart.setFieldSignature(_http._DetachedSocket, () => dart.global.Object.setPrototypeOf({
    [_incoming$]: {type: T$13.StreamOfUint8List(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_socket$0]: {type: T$3.Socket(), isConst: false, isFinal: true, libraryUri: I[119]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._DetachedSocket))));
  var _scheme$ = dart.privateName(_http, "_AuthenticationScheme._scheme");
  var _scheme = dart.privateName(_http, "_scheme");
  _http._AuthenticationScheme = class _AuthenticationScheme extends core.Object {
    get [_scheme]() {
      return this[_scheme$];
    }
    set [_scheme](value) {
      super[_scheme] = value;
    }
    static ['_#new#tearOff'](_scheme) {
      if (_scheme == null) dart.nullFailed(I[420], 3575, 36, "_scheme");
      return new _http._AuthenticationScheme.new(_scheme);
    }
    static fromString(scheme) {
      if (scheme == null) dart.nullFailed(I[420], 3577, 51, "scheme");
      if (scheme[$toLowerCase]() === "basic") return _http._AuthenticationScheme.BASIC;
      if (scheme[$toLowerCase]() === "digest") return _http._AuthenticationScheme.DIGEST;
      return _http._AuthenticationScheme.UNKNOWN;
    }
    static ['_#fromString#tearOff'](scheme) {
      if (scheme == null) dart.nullFailed(I[420], 3577, 51, "scheme");
      return _http._AuthenticationScheme.fromString(scheme);
    }
    toString() {
      if (dart.equals(this, _http._AuthenticationScheme.BASIC)) return "Basic";
      if (dart.equals(this, _http._AuthenticationScheme.DIGEST)) return "Digest";
      return "Unknown";
    }
  };
  (_http._AuthenticationScheme.new = function(_scheme) {
    if (_scheme == null) dart.nullFailed(I[420], 3575, 36, "_scheme");
    this[_scheme$] = _scheme;
    ;
  }).prototype = _http._AuthenticationScheme.prototype;
  dart.addRtiResources(_http._AuthenticationScheme, ["_http|_AuthenticationScheme"]);
  dart.setStaticMethodSignature(_http._AuthenticationScheme, () => ['fromString']);
  dart.setLibraryUri(_http._AuthenticationScheme, I[416]);
  dart.setFieldSignature(_http._AuthenticationScheme, () => dart.global.Object.setPrototypeOf({[_scheme]: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._AuthenticationScheme))));
  dart.setStaticFieldSignature(_http._AuthenticationScheme, () => ['UNKNOWN', 'BASIC', 'DIGEST']);
  dart.defineExtensionMethods(_http._AuthenticationScheme, ['toString']);
  dart.defineLazy(_http._AuthenticationScheme, {
    /*_http._AuthenticationScheme.UNKNOWN*/get UNKNOWN() {
      return C[1255] || CT.C1255;
    },
    /*_http._AuthenticationScheme.BASIC*/get BASIC() {
      return C[1256] || CT.C1256;
    },
    /*_http._AuthenticationScheme.DIGEST*/get DIGEST() {
      return C[1257] || CT.C1257;
    }
  }, false);
  _http._Credentials = class _Credentials extends core.Object {
    get scheme() {
      return this.credentials.scheme;
    }
  };
  (_http._Credentials.new = function(credentials, realm) {
    let t$361857;
    if (credentials == null) dart.nullFailed(I[420], 3602, 21, "credentials");
    if (realm == null) dart.nullFailed(I[420], 3602, 39, "realm");
    this.used = false;
    this.ha1 = null;
    this.nonce = null;
    this.algorithm = null;
    this.qop = null;
    this.nonceCount = null;
    this.credentials = credentials;
    this.realm = realm;
    if (dart.equals(this.credentials.scheme, _http._AuthenticationScheme.DIGEST)) {
      let creds = T$13._HttpClientDigestCredentials()[_as](this.credentials);
      let hasher = (t$361857 = new _http._MD5.new(), (() => {
        t$361857.add(convert.utf8.encode(creds.username));
        t$361857.add(G.JSArrayOfint().of([58]));
        t$361857.add(this.realm[$codeUnits]);
        t$361857.add(G.JSArrayOfint().of([58]));
        t$361857.add(convert.utf8.encode(creds.password));
        return t$361857;
      })());
      this.ha1 = _http._CryptoUtils.bytesToHex(hasher.close());
    }
  }).prototype = _http._Credentials.prototype;
  dart.addRtiResources(_http._Credentials, ["_http|_Credentials"]);
  dart.setGetterSignature(_http._Credentials, () => dart.global.Object.setPrototypeOf({scheme: T$13._AuthenticationScheme()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http._Credentials))));
  dart.setLibraryUri(_http._Credentials, I[416]);
  dart.setFieldSignature(_http._Credentials, () => dart.global.Object.setPrototypeOf({
    credentials: {type: T$13._HttpClientCredentials(), isConst: false, isFinal: false, libraryUri: I[416]},
    realm: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    used: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    ha1: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    nonce: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    algorithm: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    qop: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    nonceCount: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._Credentials))));
  _http._SiteCredentials = class _SiteCredentials extends _http._Credentials {
    static ['_#new#tearOff'](uri, realm, creds) {
      if (uri == null) dart.nullFailed(I[420], 3629, 25, "uri");
      if (creds == null) dart.nullFailed(I[420], 3629, 60, "creds");
      return new _http._SiteCredentials.new(uri, realm, creds);
    }
    applies(uri, scheme) {
      if (uri == null) dart.nullFailed(I[420], 3632, 20, "uri");
      if (scheme != null && !dart.equals(this.credentials.scheme, scheme)) return false;
      if (uri.host != this.uri.host) return false;
      let thisPort = this.uri.port === 0 ? 80 : this.uri.port;
      let otherPort = uri.port === 0 ? 80 : uri.port;
      if (otherPort != thisPort) return false;
      return uri.path[$startsWith](this.uri.path);
    }
    authorize(request) {
      if (request == null) dart.nullFailed(I[420], 3642, 36, "request");
      if (dart.equals(this.credentials.scheme, _http._AuthenticationScheme.DIGEST) && this.nonce == null) {
        return;
      }
      this.credentials.authorize(this, T$13._HttpClientRequest()[_as](request));
      this.used = true;
    }
  };
  (_http._SiteCredentials.new = function(uri, realm, creds) {
    if (uri == null) dart.nullFailed(I[420], 3629, 25, "uri");
    if (creds == null) dart.nullFailed(I[420], 3629, 60, "creds");
    this.uri = uri;
    dart.global.Object.getPrototypeOf(_http._SiteCredentials).new.call(this, creds, T$.String()[_as](realm));
    ;
  }).prototype = _http._SiteCredentials.prototype;
  dart.addRtiResources(_http._SiteCredentials, ["_http|_SiteCredentials"]);
  dart.setMethodSignature(_http._SiteCredentials, () => dart.global.Object.setPrototypeOf({
    applies: T$13.UriAnd_AuthenticationSchemeNTobool(),
    authorize: T$13.HttpClientRequestTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._SiteCredentials))));
  dart.setLibraryUri(_http._SiteCredentials, I[416]);
  dart.setFieldSignature(_http._SiteCredentials, () => dart.global.Object.setPrototypeOf({uri: {type: T$2.Uri(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._SiteCredentials))));
  _http._ProxyCredentials = class _ProxyCredentials extends _http._Credentials {
    static ['_#new#tearOff'](host, port, realm, creds) {
      if (host == null) dart.nullFailed(I[420], 3657, 26, "host");
      if (port == null) dart.nullFailed(I[420], 3657, 37, "port");
      if (creds == null) dart.nullFailed(I[420], 3657, 73, "creds");
      return new _http._ProxyCredentials.new(host, port, realm, creds);
    }
    applies(proxy, scheme) {
      if (proxy == null) dart.nullFailed(I[420], 3660, 23, "proxy");
      if (scheme != null && !dart.equals(this.credentials.scheme, scheme)) return false;
      return proxy.host == this.host && proxy.port == this.port;
    }
    authorize(request) {
      if (request == null) dart.nullFailed(I[420], 3665, 36, "request");
      if (dart.equals(this.credentials.scheme, _http._AuthenticationScheme.DIGEST) && this.nonce == null) {
        return;
      }
      this.credentials.authorizeProxy(this, T$13._HttpClientRequest()[_as](request));
    }
  };
  (_http._ProxyCredentials.new = function(host, port, realm, creds) {
    if (host == null) dart.nullFailed(I[420], 3657, 26, "host");
    if (port == null) dart.nullFailed(I[420], 3657, 37, "port");
    if (creds == null) dart.nullFailed(I[420], 3657, 73, "creds");
    this.host = host;
    this.port = port;
    dart.global.Object.getPrototypeOf(_http._ProxyCredentials).new.call(this, creds, T$.String()[_as](realm));
    ;
  }).prototype = _http._ProxyCredentials.prototype;
  dart.addRtiResources(_http._ProxyCredentials, ["_http|_ProxyCredentials"]);
  dart.setMethodSignature(_http._ProxyCredentials, () => dart.global.Object.setPrototypeOf({
    applies: T$13._ProxyAnd_AuthenticationSchemeNTobool(),
    authorize: T$13.HttpClientRequestTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._ProxyCredentials))));
  dart.setLibraryUri(_http._ProxyCredentials, I[416]);
  dart.setFieldSignature(_http._ProxyCredentials, () => dart.global.Object.setPrototypeOf({
    host: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    port: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._ProxyCredentials))));
  _http._HttpClientCredentials = class _HttpClientCredentials extends core.Object {};
  (_http._HttpClientCredentials.new = function() {
    ;
  }).prototype = _http._HttpClientCredentials.prototype;
  dart.addRtiResources(_http._HttpClientCredentials, ["_http|_HttpClientCredentials", "_http|HttpClientCredentials"]);
  dart.setLibraryUri(_http._HttpClientCredentials, I[416]);
  _http._HttpClientBasicCredentials = class _HttpClientBasicCredentials extends _http._HttpClientCredentials {
    static ['_#new#tearOff'](username, password) {
      if (username == null) dart.nullFailed(I[420], 3686, 36, "username");
      if (password == null) dart.nullFailed(I[420], 3686, 51, "password");
      return new _http._HttpClientBasicCredentials.new(username, password);
    }
    get scheme() {
      return _http._AuthenticationScheme.BASIC;
    }
    authorization() {
      let auth = convert.base64Encode(convert.utf8.encode(dart.str(this.username) + ":" + dart.str(this.password)));
      return "Basic " + dart.str(auth);
    }
    authorize(_, request) {
      if (_ == null) dart.nullFailed(I[420], 3701, 31, "_");
      if (request == null) dart.nullFailed(I[420], 3701, 52, "request");
      request.headers.set("authorization", this.authorization());
    }
    authorizeProxy(_, request) {
      if (_ == null) dart.nullFailed(I[420], 3705, 41, "_");
      if (request == null) dart.nullFailed(I[420], 3705, 62, "request");
      request.headers.set("proxy-authorization", this.authorization());
    }
  };
  (_http._HttpClientBasicCredentials.new = function(username, password) {
    if (username == null) dart.nullFailed(I[420], 3686, 36, "username");
    if (password == null) dart.nullFailed(I[420], 3686, 51, "password");
    this.username = username;
    this.password = password;
    ;
  }).prototype = _http._HttpClientBasicCredentials.prototype;
  dart.addRtiResources(_http._HttpClientBasicCredentials, ["_http|_HttpClientBasicCredentials", "_http|HttpClientBasicCredentials", "_http|HttpClientCredentials"]);
  dart.setMethodSignature(_http._HttpClientBasicCredentials, () => dart.global.Object.setPrototypeOf({
    authorization: T$.VoidToString(),
    authorize: T$13._CredentialsAndHttpClientRequestTovoid(),
    authorizeProxy: T$13._ProxyCredentialsAndHttpClientRequestTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpClientBasicCredentials))));
  dart.setGetterSignature(_http._HttpClientBasicCredentials, () => dart.global.Object.setPrototypeOf({scheme: T$13._AuthenticationScheme()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpClientBasicCredentials))));
  dart.setLibraryUri(_http._HttpClientBasicCredentials, I[416]);
  dart.setFieldSignature(_http._HttpClientBasicCredentials, () => dart.global.Object.setPrototypeOf({
    username: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    password: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpClientBasicCredentials))));
  _http._HttpClientDigestCredentials = class _HttpClientDigestCredentials extends _http._HttpClientCredentials {
    static ['_#new#tearOff'](username, password) {
      if (username == null) dart.nullFailed(I[420], 3715, 37, "username");
      if (password == null) dart.nullFailed(I[420], 3715, 52, "password");
      return new _http._HttpClientDigestCredentials.new(username, password);
    }
    get scheme() {
      return _http._AuthenticationScheme.DIGEST;
    }
    authorization(credentials, request) {
      let t$361857, t$361857$, t$361857$0, t$361857$1, t$361857$2, t$361857$3;
      if (credentials == null) dart.nullFailed(I[420], 3719, 37, "credentials");
      if (request == null) dart.nullFailed(I[420], 3719, 69, "request");
      let requestUri = request[_requestUri]();
      let hasher = (t$361857 = new _http._MD5.new(), (() => {
        t$361857.add(request.method[$codeUnits]);
        t$361857.add(G.JSArrayOfint().of([58]));
        t$361857.add(requestUri[$codeUnits]);
        return t$361857;
      })());
      let ha2 = _http._CryptoUtils.bytesToHex(hasher.close());
      let isAuth = false;
      let cnonce = "";
      let nc = "";
      hasher = (t$361857$ = new _http._MD5.new(), (() => {
        t$361857$.add(dart.nullCheck(credentials.ha1)[$codeUnits]);
        t$361857$.add(G.JSArrayOfint().of([58]));
        return t$361857$;
      })());
      if (credentials.qop === "auth") {
        isAuth = true;
        cnonce = _http._CryptoUtils.bytesToHex(_http._CryptoUtils.getRandomBytes(4));
        let nonceCount = dart.nullCheck(credentials.nonceCount) + 1;
        credentials.nonceCount = nonceCount;
        nc = nonceCount[$toRadixString](16)[$padLeft](9, "0");
        t$361857$0 = hasher;
        (() => {
          t$361857$0.add(dart.nullCheck(credentials.nonce)[$codeUnits]);
          t$361857$0.add(G.JSArrayOfint().of([58]));
          t$361857$0.add(nc[$codeUnits]);
          t$361857$0.add(G.JSArrayOfint().of([58]));
          t$361857$0.add(cnonce[$codeUnits]);
          t$361857$0.add(G.JSArrayOfint().of([58]));
          t$361857$0.add("auth"[$codeUnits]);
          t$361857$0.add(G.JSArrayOfint().of([58]));
          t$361857$0.add(ha2[$codeUnits]);
          return t$361857$0;
        })();
      } else {
        t$361857$1 = hasher;
        (() => {
          t$361857$1.add(dart.nullCheck(credentials.nonce)[$codeUnits]);
          t$361857$1.add(G.JSArrayOfint().of([58]));
          t$361857$1.add(ha2[$codeUnits]);
          return t$361857$1;
        })();
      }
      let response = _http._CryptoUtils.bytesToHex(hasher.close());
      let buffer = (t$361857$2 = new core.StringBuffer.new(), (() => {
        t$361857$2.write("Digest ");
        t$361857$2.write("username=\"" + dart.str(this.username) + "\"");
        t$361857$2.write(", realm=\"" + dart.str(credentials.realm) + "\"");
        t$361857$2.write(", nonce=\"" + dart.str(credentials.nonce) + "\"");
        t$361857$2.write(", uri=\"" + dart.str(requestUri) + "\"");
        t$361857$2.write(", algorithm=\"" + dart.str(credentials.algorithm) + "\"");
        return t$361857$2;
      })());
      if (isAuth) {
        t$361857$3 = buffer;
        (() => {
          t$361857$3.write(", qop=\"auth\"");
          t$361857$3.write(", cnonce=\"" + dart.str(cnonce) + "\"");
          t$361857$3.write(", nc=\"" + nc + "\"");
          return t$361857$3;
        })();
      }
      buffer.write(", response=\"" + dart.str(response) + "\"");
      return dart.toString(buffer);
    }
    authorize(credentials, request) {
      if (credentials == null) dart.nullFailed(I[420], 3774, 31, "credentials");
      if (request == null) dart.nullFailed(I[420], 3774, 62, "request");
      request.headers.set("authorization", this.authorization(credentials, T$13._HttpClientRequest()[_as](request)));
    }
    authorizeProxy(credentials, request) {
      if (credentials == null) dart.nullFailed(I[420], 3780, 25, "credentials");
      if (request == null) dart.nullFailed(I[420], 3780, 56, "request");
      request.headers.set("proxy-authorization", this.authorization(credentials, T$13._HttpClientRequest()[_as](request)));
    }
  };
  (_http._HttpClientDigestCredentials.new = function(username, password) {
    if (username == null) dart.nullFailed(I[420], 3715, 37, "username");
    if (password == null) dart.nullFailed(I[420], 3715, 52, "password");
    this.username = username;
    this.password = password;
    ;
  }).prototype = _http._HttpClientDigestCredentials.prototype;
  dart.addRtiResources(_http._HttpClientDigestCredentials, ["_http|_HttpClientDigestCredentials", "_http|HttpClientDigestCredentials", "_http|HttpClientCredentials"]);
  dart.setMethodSignature(_http._HttpClientDigestCredentials, () => dart.global.Object.setPrototypeOf({
    authorization: T$13._CredentialsAnd_HttpClientRequestToString(),
    authorize: T$13._CredentialsAndHttpClientRequestTovoid(),
    authorizeProxy: T$13._ProxyCredentialsAndHttpClientRequestTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpClientDigestCredentials))));
  dart.setGetterSignature(_http._HttpClientDigestCredentials, () => dart.global.Object.setPrototypeOf({scheme: T$13._AuthenticationScheme()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpClientDigestCredentials))));
  dart.setLibraryUri(_http._HttpClientDigestCredentials, I[416]);
  dart.setFieldSignature(_http._HttpClientDigestCredentials, () => dart.global.Object.setPrototypeOf({
    username: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    password: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpClientDigestCredentials))));
  var statusCode$ = dart.privateName(_http, "_RedirectInfo.statusCode");
  var method$0 = dart.privateName(_http, "_RedirectInfo.method");
  var location$0 = dart.privateName(_http, "_RedirectInfo.location");
  _http._RedirectInfo = class _RedirectInfo extends core.Object {
    get statusCode() {
      return this[statusCode$];
    }
    set statusCode(value) {
      super.statusCode = value;
    }
    get method() {
      return this[method$0];
    }
    set method(value) {
      super.method = value;
    }
    get location() {
      return this[location$0];
    }
    set location(value) {
      super.location = value;
    }
    static ['_#new#tearOff'](statusCode, method, location) {
      if (statusCode == null) dart.nullFailed(I[420], 3790, 28, "statusCode");
      if (method == null) dart.nullFailed(I[420], 3790, 45, "method");
      if (location == null) dart.nullFailed(I[420], 3790, 58, "location");
      return new _http._RedirectInfo.new(statusCode, method, location);
    }
  };
  (_http._RedirectInfo.new = function(statusCode, method, location) {
    if (statusCode == null) dart.nullFailed(I[420], 3790, 28, "statusCode");
    if (method == null) dart.nullFailed(I[420], 3790, 45, "method");
    if (location == null) dart.nullFailed(I[420], 3790, 58, "location");
    this[statusCode$] = statusCode;
    this[method$0] = method;
    this[location$0] = location;
    ;
  }).prototype = _http._RedirectInfo.prototype;
  dart.addRtiResources(_http._RedirectInfo, ["_http|_RedirectInfo", "_http|RedirectInfo"]);
  dart.setLibraryUri(_http._RedirectInfo, I[416]);
  dart.setFieldSignature(_http._RedirectInfo, () => dart.global.Object.setPrototypeOf({
    statusCode: {type: T$.int(), isConst: false, isFinal: true, libraryUri: I[11]},
    method: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    location: {type: T$2.Uri(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._RedirectInfo))));
  _http._Const = class _Const extends core.Object {
    static ['_#new#tearOff']() {
      return new _http._Const.new();
    }
  };
  (_http._Const.new = function() {
    ;
  }).prototype = _http._Const.prototype;
  dart.addRtiResources(_http._Const, ["_http|_Const"]);
  dart.setLibraryUri(_http._Const, I[416]);
  dart.setStaticFieldSignature(_http._Const, () => ['HTTP', 'HTTP1DOT', 'HTTP10', 'HTTP11', 'T', 'F', 'SEPARATOR_MAP']);
  dart.defineLazy(_http._Const, {
    /*_http._Const.HTTP*/get HTTP() {
      return C[1258] || CT.C1258;
    },
    /*_http._Const.HTTP1DOT*/get HTTP1DOT() {
      return C[1259] || CT.C1259;
    },
    /*_http._Const.HTTP10*/get HTTP10() {
      return C[1260] || CT.C1260;
    },
    /*_http._Const.HTTP11*/get HTTP11() {
      return C[1261] || CT.C1261;
    },
    /*_http._Const.T*/get T() {
      return true;
    },
    /*_http._Const.F*/get F() {
      return false;
    },
    /*_http._Const.SEPARATOR_MAP*/get SEPARATOR_MAP() {
      return C[1262] || CT.C1262;
    }
  }, false);
  _http._CharCode = class _CharCode extends core.Object {
    static ['_#new#tearOff']() {
      return new _http._CharCode.new();
    }
  };
  (_http._CharCode.new = function() {
    ;
  }).prototype = _http._CharCode.prototype;
  dart.addRtiResources(_http._CharCode, ["_http|_CharCode"]);
  dart.setLibraryUri(_http._CharCode, I[416]);
  dart.setStaticFieldSignature(_http._CharCode, () => ['HT', 'LF', 'CR', 'SP', 'COMMA', 'SLASH', 'ZERO', 'ONE', 'COLON', 'SEMI_COLON']);
  dart.defineLazy(_http._CharCode, {
    /*_http._CharCode.HT*/get HT() {
      return 9;
    },
    /*_http._CharCode.LF*/get LF() {
      return 10;
    },
    /*_http._CharCode.CR*/get CR() {
      return 13;
    },
    /*_http._CharCode.SP*/get SP() {
      return 32;
    },
    /*_http._CharCode.COMMA*/get COMMA() {
      return 44;
    },
    /*_http._CharCode.SLASH*/get SLASH() {
      return 47;
    },
    /*_http._CharCode.ZERO*/get ZERO() {
      return 48;
    },
    /*_http._CharCode.ONE*/get ONE() {
      return 49;
    },
    /*_http._CharCode.COLON*/get COLON() {
      return 58;
    },
    /*_http._CharCode.SEMI_COLON*/get SEMI_COLON() {
      return 59;
    }
  }, false);
  _http._State = class _State extends core.Object {
    static ['_#new#tearOff']() {
      return new _http._State.new();
    }
  };
  (_http._State.new = function() {
    ;
  }).prototype = _http._State.prototype;
  dart.addRtiResources(_http._State, ["_http|_State"]);
  dart.setLibraryUri(_http._State, I[416]);
  dart.setStaticFieldSignature(_http._State, () => ['START', 'METHOD_OR_RESPONSE_HTTP_VERSION', 'RESPONSE_HTTP_VERSION', 'REQUEST_LINE_METHOD', 'REQUEST_LINE_URI', 'REQUEST_LINE_HTTP_VERSION', 'REQUEST_LINE_ENDING', 'RESPONSE_LINE_STATUS_CODE', 'RESPONSE_LINE_REASON_PHRASE', 'RESPONSE_LINE_ENDING', 'HEADER_START', 'HEADER_FIELD', 'HEADER_VALUE_START', 'HEADER_VALUE', 'HEADER_VALUE_FOLD_OR_END_CR', 'HEADER_VALUE_FOLD_OR_END', 'HEADER_ENDING', 'CHUNK_SIZE_STARTING_CR', 'CHUNK_SIZE_STARTING', 'CHUNK_SIZE', 'CHUNK_SIZE_EXTENSION', 'CHUNK_SIZE_ENDING', 'CHUNKED_BODY_DONE_CR', 'CHUNKED_BODY_DONE', 'BODY', 'CLOSED', 'UPGRADED', 'FAILURE', 'FIRST_BODY_STATE']);
  dart.defineLazy(_http._State, {
    /*_http._State.START*/get START() {
      return 0;
    },
    /*_http._State.METHOD_OR_RESPONSE_HTTP_VERSION*/get METHOD_OR_RESPONSE_HTTP_VERSION() {
      return 1;
    },
    /*_http._State.RESPONSE_HTTP_VERSION*/get RESPONSE_HTTP_VERSION() {
      return 2;
    },
    /*_http._State.REQUEST_LINE_METHOD*/get REQUEST_LINE_METHOD() {
      return 3;
    },
    /*_http._State.REQUEST_LINE_URI*/get REQUEST_LINE_URI() {
      return 4;
    },
    /*_http._State.REQUEST_LINE_HTTP_VERSION*/get REQUEST_LINE_HTTP_VERSION() {
      return 5;
    },
    /*_http._State.REQUEST_LINE_ENDING*/get REQUEST_LINE_ENDING() {
      return 6;
    },
    /*_http._State.RESPONSE_LINE_STATUS_CODE*/get RESPONSE_LINE_STATUS_CODE() {
      return 7;
    },
    /*_http._State.RESPONSE_LINE_REASON_PHRASE*/get RESPONSE_LINE_REASON_PHRASE() {
      return 8;
    },
    /*_http._State.RESPONSE_LINE_ENDING*/get RESPONSE_LINE_ENDING() {
      return 9;
    },
    /*_http._State.HEADER_START*/get HEADER_START() {
      return 10;
    },
    /*_http._State.HEADER_FIELD*/get HEADER_FIELD() {
      return 11;
    },
    /*_http._State.HEADER_VALUE_START*/get HEADER_VALUE_START() {
      return 12;
    },
    /*_http._State.HEADER_VALUE*/get HEADER_VALUE() {
      return 13;
    },
    /*_http._State.HEADER_VALUE_FOLD_OR_END_CR*/get HEADER_VALUE_FOLD_OR_END_CR() {
      return 14;
    },
    /*_http._State.HEADER_VALUE_FOLD_OR_END*/get HEADER_VALUE_FOLD_OR_END() {
      return 15;
    },
    /*_http._State.HEADER_ENDING*/get HEADER_ENDING() {
      return 16;
    },
    /*_http._State.CHUNK_SIZE_STARTING_CR*/get CHUNK_SIZE_STARTING_CR() {
      return 17;
    },
    /*_http._State.CHUNK_SIZE_STARTING*/get CHUNK_SIZE_STARTING() {
      return 18;
    },
    /*_http._State.CHUNK_SIZE*/get CHUNK_SIZE() {
      return 19;
    },
    /*_http._State.CHUNK_SIZE_EXTENSION*/get CHUNK_SIZE_EXTENSION() {
      return 20;
    },
    /*_http._State.CHUNK_SIZE_ENDING*/get CHUNK_SIZE_ENDING() {
      return 21;
    },
    /*_http._State.CHUNKED_BODY_DONE_CR*/get CHUNKED_BODY_DONE_CR() {
      return 22;
    },
    /*_http._State.CHUNKED_BODY_DONE*/get CHUNKED_BODY_DONE() {
      return 23;
    },
    /*_http._State.BODY*/get BODY() {
      return 24;
    },
    /*_http._State.CLOSED*/get CLOSED() {
      return 25;
    },
    /*_http._State.UPGRADED*/get UPGRADED() {
      return 26;
    },
    /*_http._State.FAILURE*/get FAILURE() {
      return 27;
    },
    /*_http._State.FIRST_BODY_STATE*/get FIRST_BODY_STATE() {
      return 17;
    }
  }, false);
  _http._HttpVersion = class _HttpVersion extends core.Object {
    static ['_#new#tearOff']() {
      return new _http._HttpVersion.new();
    }
  };
  (_http._HttpVersion.new = function() {
    ;
  }).prototype = _http._HttpVersion.prototype;
  dart.addRtiResources(_http._HttpVersion, ["_http|_HttpVersion"]);
  dart.setLibraryUri(_http._HttpVersion, I[416]);
  dart.setStaticFieldSignature(_http._HttpVersion, () => ['UNDETERMINED', 'HTTP10', 'HTTP11']);
  dart.defineLazy(_http._HttpVersion, {
    /*_http._HttpVersion.UNDETERMINED*/get UNDETERMINED() {
      return 0;
    },
    /*_http._HttpVersion.HTTP10*/get HTTP10() {
      return 1;
    },
    /*_http._HttpVersion.HTTP11*/get HTTP11() {
      return 2;
    }
  }, false);
  _http._MessageType = class _MessageType extends core.Object {
    static ['_#new#tearOff']() {
      return new _http._MessageType.new();
    }
  };
  (_http._MessageType.new = function() {
    ;
  }).prototype = _http._MessageType.prototype;
  dart.addRtiResources(_http._MessageType, ["_http|_MessageType"]);
  dart.setLibraryUri(_http._MessageType, I[416]);
  dart.setStaticFieldSignature(_http._MessageType, () => ['UNDETERMINED', 'REQUEST', 'RESPONSE']);
  dart.defineLazy(_http._MessageType, {
    /*_http._MessageType.UNDETERMINED*/get UNDETERMINED() {
      return 0;
    },
    /*_http._MessageType.REQUEST*/get REQUEST() {
      return 1;
    },
    /*_http._MessageType.RESPONSE*/get RESPONSE() {
      return 0;
    }
  }, false);
  var _isCanceled$ = dart.privateName(_http, "_isCanceled");
  var _scheduled = dart.privateName(_http, "_scheduled");
  var _pauseCount$ = dart.privateName(_http, "_pauseCount");
  var _injectData$ = dart.privateName(_http, "_injectData");
  var _userOnData$ = dart.privateName(_http, "_userOnData");
  var _maybeScheduleData = dart.privateName(_http, "_maybeScheduleData");
  _http._HttpDetachedStreamSubscription = class _HttpDetachedStreamSubscription extends core.Object {
    static ['_#new#tearOff'](_subscription, _injectData, _userOnData) {
      if (_subscription == null) dart.nullFailed(I[421], 115, 12, "_subscription");
      return new _http._HttpDetachedStreamSubscription.new(_subscription, _injectData, _userOnData);
    }
    get isPaused() {
      return this[_subscription$0].isPaused;
    }
    asFuture(T, futureValue = null) {
      return this[_subscription$0].asFuture(T, T[_as](futureValue));
    }
    cancel() {
      this[_isCanceled$] = true;
      this[_injectData$] = null;
      return this[_subscription$0].cancel();
    }
    onData(handleData) {
      this[_userOnData$] = handleData;
      this[_subscription$0].onData(handleData);
    }
    onDone(handleDone) {
      this[_subscription$0].onDone(handleDone);
    }
    onError(handleError) {
      this[_subscription$0].onError(handleError);
    }
    pause(resumeSignal = null) {
      if (this[_injectData$] == null) {
        this[_subscription$0].pause(resumeSignal);
      } else {
        this[_pauseCount$] = dart.notNull(this[_pauseCount$]) + 1;
        if (resumeSignal != null) {
          resumeSignal.whenComplete(dart.bind(this, 'resume'));
        }
      }
    }
    resume() {
      if (this[_injectData$] == null) {
        this[_subscription$0].resume();
      } else {
        this[_pauseCount$] = dart.notNull(this[_pauseCount$]) - 1;
        this[_maybeScheduleData]();
      }
    }
    [_maybeScheduleData]() {
      if (dart.test(this[_scheduled])) return;
      if (this[_pauseCount$] !== 0) return;
      this[_scheduled] = true;
      async.scheduleMicrotask(dart.fn(() => {
        let t$361857;
        this[_scheduled] = false;
        if (dart.notNull(this[_pauseCount$]) > 0 || dart.test(this[_isCanceled$])) return;
        let data = dart.nullCheck(this[_injectData$]);
        this[_injectData$] = null;
        this[_subscription$0].resume();
        t$361857 = this[_userOnData$];
        t$361857 == null ? null : t$361857(data);
      }, T$.VoidTovoid()));
    }
  };
  (_http._HttpDetachedStreamSubscription.new = function(_subscription, _injectData, _userOnData) {
    if (_subscription == null) dart.nullFailed(I[421], 115, 12, "_subscription");
    this[_isCanceled$] = false;
    this[_scheduled] = false;
    this[_pauseCount$] = 1;
    this[_subscription$0] = _subscription;
    this[_injectData$] = _injectData;
    this[_userOnData$] = _userOnData;
    ;
  }).prototype = _http._HttpDetachedStreamSubscription.prototype;
  dart.addRtiResources(_http._HttpDetachedStreamSubscription, ["_http|_HttpDetachedStreamSubscription", "async|StreamSubscription"]);
  dart.setMethodSignature(_http._HttpDetachedStreamSubscription, () => dart.global.Object.setPrototypeOf({
    asFuture: T$.ENToFutureOfE(),
    cancel: T$.VoidToFuture(),
    onData: T$13.FnTovoid$51(),
    onDone: T$.FnTovoid$9(),
    onError: T$.FunctionNTovoid(),
    pause: T$.FutureNTovoid(),
    resume: T$.VoidTovoid(),
    [_maybeScheduleData]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpDetachedStreamSubscription))));
  dart.setMethodsDefaultTypeArgSignature(_http._HttpDetachedStreamSubscription, () => dart.global.Object.setPrototypeOf({asFuture: [T$.dynamic()]}, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_http._HttpDetachedStreamSubscription))));
  dart.setGetterSignature(_http._HttpDetachedStreamSubscription, () => dart.global.Object.setPrototypeOf({isPaused: T$.bool()}, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpDetachedStreamSubscription))));
  dart.setLibraryUri(_http._HttpDetachedStreamSubscription, I[416]);
  dart.setFieldSignature(_http._HttpDetachedStreamSubscription, () => dart.global.Object.setPrototypeOf({
    [_subscription$0]: {type: T$13.StreamSubscriptionOfUint8List(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_injectData$]: {type: T$2.Uint8ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_userOnData$]: {type: T$13.Uint8ListToNvoid(), isConst: false, isFinal: false},
    [_isCanceled$]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_scheduled]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pauseCount$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpDetachedStreamSubscription))));
  var _bufferedData$0 = dart.privateName(_http, "_bufferedData");
  _http._HttpDetachedIncoming = class _HttpDetachedIncoming extends G$.StreamOfUint8List() {
    static ['_#new#tearOff'](_subscription, _bufferedData) {
      return new _http._HttpDetachedIncoming.new(_subscription, _bufferedData);
    }
    listen(onData, opts) {
      let t$361857, t$361857$, t$361857$0, t$361857$1;
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      let subscription = this[_subscription$0];
      if (subscription != null) {
        t$361857 = subscription;
        (() => {
          t$361857.onData(onData);
          t$361857.onError(onError);
          t$361857.onDone(onDone);
          return t$361857;
        })();
        if (this[_bufferedData$0] == null) {
          t$361857$ = subscription;
          return (() => {
            t$361857$.resume();
            return t$361857$;
          })();
        }
        t$361857$0 = new _http._HttpDetachedStreamSubscription.new(subscription, this[_bufferedData$0], onData);
        return (() => {
          t$361857$0.resume();
          return t$361857$0;
        })();
      } else {
        return G$.StreamOfUint8List().fromIterable(G.JSArrayOfUint8List().of([(t$361857$1 = this[_bufferedData$0], t$361857$1 == null ? _native_typed_data.NativeUint8List.new(0) : t$361857$1)])).listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
      }
    }
  };
  (_http._HttpDetachedIncoming.new = function(_subscription, _bufferedData) {
    this[_subscription$0] = _subscription;
    this[_bufferedData$0] = _bufferedData;
    this.$ti = this.$ti || T$13._HttpDetachedIncoming();
    dart.global.Object.getPrototypeOf(_http._HttpDetachedIncoming).new.call(this);
    ;
  }).prototype = _http._HttpDetachedIncoming.prototype;
  dart.addRtiResources(_http._HttpDetachedIncoming, ["_http|_HttpDetachedIncoming"]);
  dart.setMethodSignature(_http._HttpDetachedIncoming, () => dart.global.Object.setPrototypeOf({listen: T$2.Fn__ToStreamSubscriptionOfUint8List()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpDetachedIncoming))));
  dart.setLibraryUri(_http._HttpDetachedIncoming, I[416]);
  dart.setFieldSignature(_http._HttpDetachedIncoming, () => dart.global.Object.setPrototypeOf({
    [_subscription$0]: {type: T$13.StreamSubscriptionNOfUint8List(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_bufferedData$0]: {type: T$2.Uint8ListN(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpDetachedIncoming))));
  var connectMethod = dart.privateName(_http, "_HttpParser.connectMethod");
  var _parserCalled = dart.privateName(_http, "_parserCalled");
  var _index$3 = dart.privateName(_http, "_index");
  var _httpVersionIndex = dart.privateName(_http, "_httpVersionIndex");
  var _messageType = dart.privateName(_http, "_messageType");
  var _statusCodeLength = dart.privateName(_http, "_statusCodeLength");
  var _method$ = dart.privateName(_http, "_method");
  var _uriOrReasonPhrase = dart.privateName(_http, "_uriOrReasonPhrase");
  var _headerField = dart.privateName(_http, "_headerField");
  var _headerValue = dart.privateName(_http, "_headerValue");
  var _headersReceivedSize = dart.privateName(_http, "_headersReceivedSize");
  var _httpVersion = dart.privateName(_http, "_httpVersion");
  var _connectionUpgrade = dart.privateName(_http, "_connectionUpgrade");
  var _chunked = dart.privateName(_http, "_chunked");
  var _noMessageBody = dart.privateName(_http, "_noMessageBody");
  var _remainingContent = dart.privateName(_http, "_remainingContent");
  var _transferEncoding = dart.privateName(_http, "_transferEncoding");
  var _socketSubscription$ = dart.privateName(_http, "_socketSubscription");
  var _paused = dart.privateName(_http, "_paused");
  var _bodyPaused = dart.privateName(_http, "_bodyPaused");
  var _bodyController = dart.privateName(_http, "_bodyController");
  var _requestParser$ = dart.privateName(_http, "_requestParser");
  var _pauseStateChanged = dart.privateName(_http, "_pauseStateChanged");
  var _reset$ = dart.privateName(_http, "_reset");
  var _onData$1 = dart.privateName(_http, "_onData");
  var _onDone$ = dart.privateName(_http, "_onDone");
  var _doParse = dart.privateName(_http, "_doParse");
  var _reportBodyError = dart.privateName(_http, "_reportBodyError");
  var _reportHttpError = dart.privateName(_http, "_reportHttpError");
  var _createIncoming = dart.privateName(_http, "_createIncoming");
  var _closeIncoming = dart.privateName(_http, "_closeIncoming");
  var _headersEnd = dart.privateName(_http, "_headersEnd");
  var _addWithValidation = dart.privateName(_http, "_addWithValidation");
  var _expect = dart.privateName(_http, "_expect");
  var _expectHexDigit = dart.privateName(_http, "_expectHexDigit");
  var _releaseBuffer = dart.privateName(_http, "_releaseBuffer");
  var _reportSizeLimitError = dart.privateName(_http, "_reportSizeLimitError");
  _http._HttpParser = class _HttpParser extends G$.StreamOf_HttpIncoming() {
    get connectMethod() {
      return this[connectMethod];
    }
    set connectMethod(value) {
      if (value == null) dart.nullFailed(I[421], 256, 8, "connectMethod");
      this[connectMethod] = value;
    }
    static ['_#requestParser#tearOff']() {
      return _http._HttpParser.requestParser();
    }
    static requestParser() {
      return new _http._HttpParser.__(true);
    }
    static ['_#responseParser#tearOff']() {
      return _http._HttpParser.responseParser();
    }
    static responseParser() {
      return new _http._HttpParser.__(false);
    }
    static ['_#_#tearOff'](_requestParser) {
      if (_requestParser == null) dart.nullFailed(I[421], 279, 22, "_requestParser");
      return new _http._HttpParser.__(_requestParser);
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      return this[_controller$0].stream.listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    listenToStream(stream) {
      if (stream == null) dart.nullFailed(I[421], 308, 41, "stream");
      this[_socketSubscription$] = stream.listen(dart.bind(this, _onData$1), {onError: dart.bind(this[_controller$0], 'addError'), onDone: dart.bind(this, _onDone$)});
    }
    [_parse]() {
      try {
        this[_doParse]();
      } catch (t$36$35e) {
        let e = dart.getThrown(t$36$35e);
        let s = dart.stackTrace(t$36$35e);
        if (T$.Object()[_is](e)) {
          if (dart.notNull(this[_state$1]) >= 17 && dart.notNull(this[_state$1]) <= 24) {
            this[_state$1] = 27;
            this[_reportBodyError](e, s);
          } else {
            this[_state$1] = 27;
            this[_reportHttpError](e, s);
          }
        } else
          throw t$36$35e;
      }
    }
    [_headersEnd]() {
      let headers = dart.nullCheck(this[_headers]);
      if (!dart.test(this[_requestParser$]) && dart.notNull(this[_statusCode]) >= 200 && dart.notNull(this[_statusCode]) < 300 && dart.test(this.connectMethod)) {
        this[_transferLength$] = -1;
        headers.chunkedTransferEncoding = false;
        this[_chunked] = false;
        headers.removeAll("content-length");
        headers.removeAll("transfer-encoding");
      }
      headers[_mutable] = false;
      this[_transferLength$] = headers.contentLength;
      if (dart.test(this[_chunked])) this[_transferLength$] = -1;
      if (this[_messageType] === 1 && dart.notNull(this[_transferLength$]) < 0 && this[_chunked] === false) {
        this[_transferLength$] = 0;
      }
      if (dart.test(this[_connectionUpgrade])) {
        this[_state$1] = 26;
        this[_transferLength$] = 0;
      }
      let incoming = this[_createIncoming](this[_transferLength$]);
      if (dart.test(this[_requestParser$])) {
        incoming.method = core.String.fromCharCodes(this[_method$]);
        incoming.uri = core.Uri.parse(core.String.fromCharCodes(this[_uriOrReasonPhrase]));
      } else {
        incoming.statusCode = this[_statusCode];
        incoming.reasonPhrase = core.String.fromCharCodes(this[_uriOrReasonPhrase]);
      }
      this[_method$][$clear]();
      this[_uriOrReasonPhrase][$clear]();
      if (dart.test(this[_connectionUpgrade])) {
        incoming.upgraded = true;
        this[_parserCalled] = false;
        this[_closeIncoming]();
        this[_controller$0].add(incoming);
        return true;
      }
      if (this[_transferLength$] === 0 || this[_messageType] === 0 && dart.test(this[_noMessageBody])) {
        this[_reset$]();
        this[_closeIncoming]();
        this[_controller$0].add(incoming);
        return false;
      } else if (dart.test(this[_chunked])) {
        this[_state$1] = 19;
        this[_remainingContent] = 0;
      } else if (dart.notNull(this[_transferLength$]) > 0) {
        this[_remainingContent] = this[_transferLength$];
        this[_state$1] = 24;
      } else {
        this[_state$1] = 24;
      }
      this[_parserCalled] = false;
      this[_controller$0].add(incoming);
      return true;
    }
    [_doParse]() {
      if (!!dart.test(this[_parserCalled])) dart.assertFailed(null, I[421], 422, 12, "!_parserCalled");
      this[_parserCalled] = true;
      if (this[_state$1] === 25) {
        dart.throw(new _http.HttpException.new("Data on closed connection"));
      }
      if (this[_state$1] === 27) {
        dart.throw(new _http.HttpException.new("Data on failed connection"));
      }
      while (this[_buffer$2] != null && dart.notNull(this[_index$3]) < dart.notNull(dart.nullCheck(this[_buffer$2])[$length]) && this[_state$1] !== 27 && this[_state$1] !== 26) {
        if (this[_incoming$] != null && dart.test(this[_bodyPaused]) || this[_incoming$] == null && dart.test(this[_paused])) {
          this[_parserCalled] = false;
          return;
        }
        let index = this[_index$3];
        let byte = dart.nullCheck(this[_buffer$2])[$_get](index);
        this[_index$3] = dart.notNull(index) + 1;
        switch (this[_state$1]) {
          case 0:
            {
              if (byte == _http._Const.HTTP[$_get](0)) {
                this[_httpVersionIndex] = 1;
                this[_state$1] = 1;
              } else {
                if (!dart.test(_http._HttpParser._isTokenChar(byte))) {
                  dart.throw(new _http.HttpException.new("Invalid request method"));
                }
                this[_addWithValidation](this[_method$], byte);
                if (!dart.test(this[_requestParser$])) {
                  dart.throw(new _http.HttpException.new("Invalid response line"));
                }
                this[_state$1] = 3;
              }
              break;
            }
          case 1:
            {
              let httpVersionIndex = dart.nullCheck(this[_httpVersionIndex]);
              if (httpVersionIndex < dart.notNull(_http._Const.HTTP[$length]) && byte == _http._Const.HTTP[$_get](httpVersionIndex)) {
                this[_httpVersionIndex] = httpVersionIndex + 1;
              } else if (httpVersionIndex === _http._Const.HTTP[$length] && byte === 47) {
                this[_httpVersionIndex] = httpVersionIndex + 1;
                if (dart.test(this[_requestParser$])) {
                  dart.throw(new _http.HttpException.new("Invalid request line"));
                }
                this[_state$1] = 2;
              } else {
                for (let i = 0; i < httpVersionIndex; i = i + 1) {
                  this[_addWithValidation](this[_method$], _http._Const.HTTP[$_get](i));
                }
                if (byte === 32) {
                  this[_state$1] = 4;
                } else {
                  this[_addWithValidation](this[_method$], byte);
                  this[_httpVersion] = 0;
                  if (!dart.test(this[_requestParser$])) {
                    dart.throw(new _http.HttpException.new("Invalid response line"));
                  }
                  this[_state$1] = 3;
                }
              }
              break;
            }
          case 2:
            {
              let httpVersionIndex = dart.nullCheck(this[_httpVersionIndex]);
              if (httpVersionIndex < dart.notNull(_http._Const.HTTP1DOT[$length])) {
                this[_expect](byte, _http._Const.HTTP1DOT[$_get](httpVersionIndex));
                this[_httpVersionIndex] = httpVersionIndex + 1;
              } else if (httpVersionIndex === _http._Const.HTTP1DOT[$length] && byte === 49) {
                this[_httpVersion] = 2;
                this[_persistentConnection] = true;
                this[_httpVersionIndex] = httpVersionIndex + 1;
              } else if (httpVersionIndex === _http._Const.HTTP1DOT[$length] && byte === 48) {
                this[_httpVersion] = 1;
                this[_persistentConnection] = false;
                this[_httpVersionIndex] = httpVersionIndex + 1;
              } else if (httpVersionIndex === dart.notNull(_http._Const.HTTP1DOT[$length]) + 1) {
                this[_expect](byte, 32);
                this[_state$1] = 7;
              } else {
                dart.throw(new _http.HttpException.new("Invalid response line, failed to parse HTTP version"));
              }
              break;
            }
          case 3:
            {
              if (byte === 32) {
                this[_state$1] = 4;
              } else {
                if (dart.test(_http._Const.SEPARATOR_MAP[$_get](byte)) || byte === 13 || byte === 10) {
                  dart.throw(new _http.HttpException.new("Invalid request method"));
                }
                this[_addWithValidation](this[_method$], byte);
              }
              break;
            }
          case 4:
            {
              if (byte === 32) {
                if (dart.test(this[_uriOrReasonPhrase][$isEmpty])) {
                  dart.throw(new _http.HttpException.new("Invalid request, empty URI"));
                }
                this[_state$1] = 5;
                this[_httpVersionIndex] = 0;
              } else {
                if (byte === 13 || byte === 10) {
                  dart.throw(new _http.HttpException.new("Invalid request, unexpected " + dart.str(byte) + " in URI"));
                }
                this[_addWithValidation](this[_uriOrReasonPhrase], byte);
              }
              break;
            }
          case 5:
            {
              let httpVersionIndex = dart.nullCheck(this[_httpVersionIndex]);
              if (httpVersionIndex < dart.notNull(_http._Const.HTTP1DOT[$length])) {
                this[_expect](byte, _http._Const.HTTP11[$_get](httpVersionIndex));
                this[_httpVersionIndex] = httpVersionIndex + 1;
              } else if (this[_httpVersionIndex] == _http._Const.HTTP1DOT[$length]) {
                if (byte === 49) {
                  this[_httpVersion] = 2;
                  this[_persistentConnection] = true;
                  this[_httpVersionIndex] = httpVersionIndex + 1;
                } else if (byte === 48) {
                  this[_httpVersion] = 1;
                  this[_persistentConnection] = false;
                  this[_httpVersionIndex] = httpVersionIndex + 1;
                } else {
                  dart.throw(new _http.HttpException.new("Invalid response, invalid HTTP version"));
                }
              } else {
                if (byte === 13) {
                  this[_state$1] = 6;
                } else if (byte === 10) {
                  this[_state$1] = 6;
                  this[_index$3] = dart.notNull(this[_index$3]) - 1;
                }
              }
              break;
            }
          case 6:
            {
              this[_expect](byte, 10);
              this[_messageType] = 1;
              this[_state$1] = 10;
              break;
            }
          case 7:
            {
              if (byte === 32) {
                this[_state$1] = 8;
              } else if (byte === 13) {
                this[_state$1] = 9;
              } else if (byte === 10) {
                this[_state$1] = 9;
                this[_index$3] = dart.notNull(this[_index$3]) - 1;
              } else {
                this[_statusCodeLength] = dart.notNull(this[_statusCodeLength]) + 1;
                if (dart.notNull(byte) < 48 || dart.notNull(byte) > 57) {
                  dart.throw(new _http.HttpException.new("Invalid response status code with " + dart.str(byte)));
                } else if (dart.notNull(this[_statusCodeLength]) > 3) {
                  dart.throw(new _http.HttpException.new("Invalid response, status code is over 3 digits"));
                } else {
                  this[_statusCode] = dart.notNull(this[_statusCode]) * 10 + dart.notNull(byte) - 48;
                }
              }
              break;
            }
          case 8:
            {
              if (byte === 13) {
                this[_state$1] = 9;
              } else if (byte === 10) {
                this[_state$1] = 9;
                this[_index$3] = dart.notNull(this[_index$3]) - 1;
              } else {
                this[_addWithValidation](this[_uriOrReasonPhrase], byte);
              }
              break;
            }
          case 9:
            {
              this[_expect](byte, 10);
              this[_messageType] === 0;
              if (dart.notNull(this[_statusCode]) <= 199 || this[_statusCode] === 204 || this[_statusCode] === 304) {
                this[_noMessageBody] = true;
              }
              this[_state$1] = 10;
              break;
            }
          case 10:
            {
              this[_headers] = new _http._HttpHeaders.new(dart.nullCheck(this.version));
              if (byte === 13) {
                this[_state$1] = 16;
              } else if (byte === 10) {
                this[_state$1] = 16;
                this[_index$3] = dart.notNull(this[_index$3]) - 1;
              } else {
                this[_addWithValidation](this[_headerField], _http._HttpParser._toLowerCaseByte(byte));
                this[_state$1] = 11;
              }
              break;
            }
          case 11:
            {
              if (byte === 58) {
                this[_state$1] = 12;
              } else {
                if (!dart.test(_http._HttpParser._isTokenChar(byte))) {
                  dart.throw(new _http.HttpException.new("Invalid header field name, with " + dart.str(byte)));
                }
                this[_addWithValidation](this[_headerField], _http._HttpParser._toLowerCaseByte(byte));
              }
              break;
            }
          case 12:
            {
              if (byte === 13) {
                this[_state$1] = 14;
              } else if (byte === 10) {
                this[_state$1] = 15;
              } else if (byte !== 32 && byte !== 9) {
                this[_addWithValidation](this[_headerValue], byte);
                this[_state$1] = 13;
              }
              break;
            }
          case 13:
            {
              if (byte === 13) {
                this[_state$1] = 14;
              } else if (byte === 10) {
                this[_state$1] = 15;
              } else {
                this[_addWithValidation](this[_headerValue], byte);
              }
              break;
            }
          case 14:
            {
              this[_expect](byte, 10);
              this[_state$1] = 15;
              break;
            }
          case 15:
            {
              if (byte === 32 || byte === 9) {
                this[_addWithValidation](this[_headerValue], 32);
                this[_state$1] = 12;
              } else {
                let headerField = core.String.fromCharCodes(this[_headerField]);
                _http._HttpParser._removeTrailingSpaces(this[_headerValue]);
                let headerValue = core.String.fromCharCodes(this[_headerValue]);
                if (headerField === "content-length") {
                  if (dart.test(this[_contentLength])) {
                    dart.throw(new _http.HttpException.new("The Content-Length header occurred more than once, at most one is allowed."));
                  } else if (!dart.test(this[_transferEncoding])) {
                    this[_contentLength] = true;
                  }
                } else if (headerField === "transfer-encoding") {
                  this[_transferEncoding] = true;
                  if (dart.test(_http._HttpParser._caseInsensitiveCompare("chunked"[$codeUnits], this[_headerValue]))) {
                    this[_chunked] = true;
                  }
                  this[_contentLength] = false;
                }
                let headers = dart.nullCheck(this[_headers]);
                if (headerField === "connection") {
                  let tokens = _http._HttpParser._tokenizeFieldValue(headerValue);
                  let isResponse = this[_messageType] === 0;
                  let isUpgradeCode = this[_statusCode] === 426 || this[_statusCode] === 101;
                  for (let i = 0; i < dart.notNull(tokens[$length]); i = i + 1) {
                    let isUpgrade = _http._HttpParser._caseInsensitiveCompare("upgrade"[$codeUnits], tokens[$_get](i)[$codeUnits]);
                    if (dart.test(isUpgrade) && !isResponse || dart.test(isUpgrade) && isResponse && isUpgradeCode) {
                      this[_connectionUpgrade] = true;
                    }
                    headers[_addConnection](headerField, tokens[$_get](i));
                  }
                } else if (headerField !== "content-length" || !dart.test(this[_transferEncoding])) {
                  headers[_add$2](headerField, headerValue);
                }
                this[_headerField][$clear]();
                this[_headerValue][$clear]();
                if (byte === 13) {
                  this[_state$1] = 16;
                } else if (byte === 10) {
                  this[_state$1] = 16;
                  this[_index$3] = dart.notNull(this[_index$3]) - 1;
                } else {
                  this[_state$1] = 11;
                  this[_addWithValidation](this[_headerField], _http._HttpParser._toLowerCaseByte(byte));
                }
              }
              break;
            }
          case 16:
            {
              this[_expect](byte, 10);
              if (dart.test(this[_headersEnd]())) {
                return;
              }
              break;
            }
          case 17:
            {
              if (byte === 10) {
                this[_state$1] = 18;
                this[_index$3] = dart.notNull(this[_index$3]) - 1;
                break;
              }
              this[_expect](byte, 13);
              this[_state$1] = 18;
              break;
            }
          case 18:
            {
              this[_expect](byte, 10);
              this[_state$1] = 19;
              break;
            }
          case 19:
            {
              if (byte === 13) {
                this[_state$1] = 21;
              } else if (byte === 10) {
                this[_state$1] = 21;
                this[_index$3] = dart.notNull(this[_index$3]) - 1;
              } else if (byte === 59) {
                this[_state$1] = 20;
              } else {
                let value = this[_expectHexDigit](byte);
                if (dart.notNull(this[_remainingContent]) > (2147483647)[$rightShift](4)) {
                  dart.throw(new _http.HttpException.new("Chunk size overflows the integer"));
                }
                this[_remainingContent] = dart.notNull(this[_remainingContent]) * 16 + dart.notNull(value);
              }
              break;
            }
          case 20:
            {
              if (byte === 13) {
                this[_state$1] = 21;
              } else if (byte === 10) {
                this[_state$1] = 21;
                this[_index$3] = dart.notNull(this[_index$3]) - 1;
              }
              break;
            }
          case 21:
            {
              this[_expect](byte, 10);
              if (dart.notNull(this[_remainingContent]) > 0) {
                this[_state$1] = 24;
              } else {
                this[_state$1] = 22;
              }
              break;
            }
          case 22:
            {
              if (byte === 10) {
                this[_state$1] = 23;
                this[_index$3] = dart.notNull(this[_index$3]) - 1;
                break;
              }
              this[_expect](byte, 13);
              break;
            }
          case 23:
            {
              this[_expect](byte, 10);
              this[_reset$]();
              this[_closeIncoming]();
              break;
            }
          case 24:
            {
              this[_index$3] = dart.notNull(this[_index$3]) - 1;
              let buffer = dart.nullCheck(this[_buffer$2]);
              let dataAvailable = dart.notNull(buffer[$length]) - dart.notNull(this[_index$3]);
              if (dart.notNull(this[_remainingContent]) >= 0 && dart.notNull(dataAvailable) > dart.notNull(this[_remainingContent])) {
                dataAvailable = this[_remainingContent];
              }
              let data = typed_data.Uint8List.view(buffer[$buffer], dart.notNull(buffer[$offsetInBytes]) + dart.notNull(this[_index$3]), dataAvailable);
              dart.nullCheck(this[_bodyController]).add(data);
              if (this[_remainingContent] !== -1) {
                this[_remainingContent] = dart.notNull(this[_remainingContent]) - dart.notNull(data[$length]);
              }
              this[_index$3] = dart.notNull(this[_index$3]) + dart.notNull(data[$length]);
              if (this[_remainingContent] === 0) {
                if (!dart.test(this[_chunked])) {
                  this[_reset$]();
                  this[_closeIncoming]();
                } else {
                  this[_state$1] = 17;
                }
              }
              break;
            }
          case 27:
            {
              if (!false) dart.assertFailed(null, I[421], 860, 18, "false");
              break;
            }
          default:
            {
              if (!false) dart.assertFailed(null, I[421], 865, 18, "false");
              break;
            }
        }
      }
      this[_parserCalled] = false;
      let buffer = this[_buffer$2];
      if (buffer != null && this[_index$3] == buffer[$length]) {
        this[_releaseBuffer]();
        if (this[_state$1] !== 26 && this[_state$1] !== 27) {
          dart.nullCheck(this[_socketSubscription$]).resume();
        }
      }
    }
    [_onData$1](buffer) {
      if (buffer == null) dart.nullFailed(I[421], 882, 26, "buffer");
      dart.nullCheck(this[_socketSubscription$]).pause();
      if (!(this[_buffer$2] == null)) dart.assertFailed(null, I[421], 884, 12, "_buffer == null");
      this[_buffer$2] = buffer;
      this[_index$3] = 0;
      this[_parse]();
    }
    [_onDone$]() {
      this[_socketSubscription$] = null;
      if (this[_state$1] === 25 || this[_state$1] === 27) return;
      if (this[_incoming$] != null) {
        if (this[_state$1] !== 26 && !(this[_state$1] === 0 && !dart.test(this[_requestParser$])) && !(this[_state$1] === 24 && !dart.test(this[_chunked]) && this[_transferLength$] === -1)) {
          this[_reportBodyError](new _http.HttpException.new("Connection closed while receiving data"));
        }
        this[_closeIncoming](true);
        this[_controller$0].close();
        return;
      }
      if (this[_state$1] === 0) {
        if (!dart.test(this[_requestParser$])) {
          this[_reportHttpError](new _http.HttpException.new("Connection closed before full header was received"));
        }
        this[_controller$0].close();
        return;
      }
      if (this[_state$1] === 26) {
        this[_controller$0].close();
        return;
      }
      if (dart.notNull(this[_state$1]) < 17) {
        this[_state$1] = 27;
        this[_reportHttpError](new _http.HttpException.new("Connection closed before full header was received"));
        this[_controller$0].close();
        return;
      }
      if (!dart.test(this[_chunked]) && this[_transferLength$] === -1) {
        this[_state$1] = 25;
      } else {
        this[_state$1] = 27;
        this[_reportHttpError](new _http.HttpException.new("Connection closed before full body was received"));
      }
      this[_controller$0].close();
    }
    get version() {
      switch (this[_httpVersion]) {
        case 1:
          {
            return "1.0";
          }
        case 2:
          {
            return "1.1";
          }
      }
      return null;
    }
    get messageType() {
      return this[_messageType];
    }
    get transferLength() {
      return this[_transferLength$];
    }
    get upgrade() {
      return dart.test(this[_connectionUpgrade]) && this[_state$1] === 26;
    }
    get persistentConnection() {
      return this[_persistentConnection];
    }
    set isHead(value) {
      if (value == null) dart.nullFailed(I[421], 958, 24, "value");
      this[_noMessageBody] = _internal.valueOfNonNullableParamWithDefault(T$.bool(), value, false);
    }
    detachIncoming() {
      this[_state$1] = 26;
      return new _http._HttpDetachedIncoming.new(this[_socketSubscription$], this.readUnparsedData());
    }
    readUnparsedData() {
      let buffer = this[_buffer$2];
      if (buffer == null) return null;
      let index = this[_index$3];
      if (index == buffer[$length]) return null;
      let result = buffer[$sublist](index);
      this[_releaseBuffer]();
      return result;
    }
    [_reset$]() {
      if (this[_state$1] === 26) return;
      this[_state$1] = 0;
      this[_messageType] = 0;
      this[_headerField][$clear]();
      this[_headerValue][$clear]();
      this[_headersReceivedSize] = 0;
      this[_method$][$clear]();
      this[_uriOrReasonPhrase][$clear]();
      this[_statusCode] = 0;
      this[_statusCodeLength] = 0;
      this[_httpVersion] = 0;
      this[_transferLength$] = -1;
      this[_persistentConnection] = false;
      this[_connectionUpgrade] = false;
      this[_chunked] = false;
      this[_noMessageBody] = false;
      this[_remainingContent] = -1;
      this[_contentLength] = false;
      this[_transferEncoding] = false;
      this[_headers] = null;
    }
    [_releaseBuffer]() {
      this[_buffer$2] = null;
      this[_index$3] = -1;
    }
    static _isTokenChar(byte) {
      if (byte == null) dart.nullFailed(I[421], 1011, 32, "byte");
      return dart.notNull(byte) > 31 && dart.notNull(byte) < 128 && !dart.test(_http._Const.SEPARATOR_MAP[$_get](byte));
    }
    static _isValueChar(byte) {
      if (byte == null) dart.nullFailed(I[421], 1015, 32, "byte");
      return dart.notNull(byte) > 31 && dart.notNull(byte) < 128 || byte === 9;
    }
    static _removeTrailingSpaces(value) {
      if (value == null) dart.nullFailed(I[421], 1019, 47, "value");
      let length = value[$length];
      while (dart.notNull(length) > 0 && (value[$_get](dart.notNull(length) - 1) === 32 || value[$_get](dart.notNull(length) - 1) === 9)) {
        length = dart.notNull(length) - 1;
      }
      value[$length] = length;
    }
    static _tokenizeFieldValue(headerValue) {
      if (headerValue == null) dart.nullFailed(I[421], 1030, 50, "headerValue");
      let tokens = G.JSArrayOfString().of([]);
      let start = 0;
      let index = 0;
      while (index < headerValue.length) {
        if (headerValue[$_get](index) === ",") {
          tokens[$add](headerValue[$substring](start, index));
          start = index + 1;
        } else if (headerValue[$_get](index) === " " || headerValue[$_get](index) === "\t") {
          start = start + 1;
        }
        index = index + 1;
      }
      tokens[$add](headerValue[$substring](start, index));
      return tokens;
    }
    static _toLowerCaseByte(x) {
      if (x == null) dart.nullFailed(I[421], 1047, 35, "x");
      return (dart.notNull(x) - 65 & 127) < 26 ? (dart.notNull(x) | 32) >>> 0 : x;
    }
    static _caseInsensitiveCompare(expected, value) {
      if (expected == null) dart.nullFailed(I[421], 1057, 49, "expected");
      if (value == null) dart.nullFailed(I[421], 1057, 69, "value");
      if (expected[$length] != value[$length]) return false;
      for (let i = 0; i < dart.notNull(expected[$length]); i = i + 1) {
        if (expected[$_get](i) != _http._HttpParser._toLowerCaseByte(value[$_get](i))) return false;
      }
      return true;
    }
    [_expect](val1, val2) {
      if (val1 == null) dart.nullFailed(I[421], 1065, 20, "val1");
      if (val2 == null) dart.nullFailed(I[421], 1065, 30, "val2");
      if (val1 != val2) {
        dart.throw(new _http.HttpException.new("Failed to parse HTTP, " + dart.str(val1) + " does not match " + dart.str(val2)));
      }
    }
    [_expectHexDigit](byte) {
      if (byte == null) dart.nullFailed(I[421], 1071, 27, "byte");
      if (48 <= dart.notNull(byte) && dart.notNull(byte) <= 57) {
        return dart.notNull(byte) - 48;
      } else if (65 <= dart.notNull(byte) && dart.notNull(byte) <= 70) {
        return dart.notNull(byte) - 65 + 10;
      } else if (97 <= dart.notNull(byte) && dart.notNull(byte) <= 102) {
        return dart.notNull(byte) - 97 + 10;
      } else {
        dart.throw(new _http.HttpException.new("Failed to parse HTTP, " + dart.str(byte) + " is expected to be a Hex digit"));
      }
    }
    [_addWithValidation](list, byte) {
      if (list == null) dart.nullFailed(I[421], 1084, 37, "list");
      if (byte == null) dart.nullFailed(I[421], 1084, 47, "byte");
      this[_headersReceivedSize] = dart.notNull(this[_headersReceivedSize]) + 1;
      if (dart.notNull(this[_headersReceivedSize]) < 1048576) {
        list[$add](byte);
      } else {
        this[_reportSizeLimitError]();
      }
    }
    [_reportSizeLimitError]() {
      let method = "";
      switch (this[_state$1]) {
        case 0:
        case 1:
        case 3:
          {
            method = "Method";
            break;
          }
        case 4:
          {
            method = "URI";
            break;
          }
        case 8:
          {
            method = "Reason phrase";
            break;
          }
        case 10:
        case 11:
          {
            method = "Header field";
            break;
          }
        case 12:
        case 13:
          {
            method = "Header value";
            break;
          }
        default:
          {
            dart.throw(new core.UnsupportedError.new("Unexpected state: " + dart.str(this[_state$1])));
          }
      }
      dart.throw(new _http.HttpException.new(method + " exceeds the " + dart.strSafe(1048576) + " size limit"));
    }
    [_createIncoming](transferLength) {
      let t$361858;
      if (transferLength == null) dart.nullFailed(I[421], 1127, 37, "transferLength");
      if (!(this[_incoming$] == null)) dart.assertFailed(null, I[421], 1128, 12, "_incoming == null");
      if (!(this[_bodyController] == null)) dart.assertFailed(null, I[421], 1129, 12, "_bodyController == null");
      if (!!dart.test(this[_bodyPaused])) dart.assertFailed(null, I[421], 1130, 12, "!_bodyPaused");
      let controller = this[_bodyController] = G.StreamControllerOfUint8List().new({sync: true});
      let incoming = this[_incoming$] = new _http._HttpIncoming.new(dart.nullCheck(this[_headers]), transferLength, controller.stream);
      t$361858 = controller;
      (() => {
        t$361858.onListen = dart.fn(() => {
          if (!dart.equals(incoming, this[_incoming$])) return;
          if (!dart.test(this[_bodyPaused])) dart.assertFailed(null, I[421], 1137, 16, "_bodyPaused");
          this[_bodyPaused] = false;
          this[_pauseStateChanged]();
        }, T$.VoidTovoid());
        t$361858.onPause = dart.fn(() => {
          if (!dart.equals(incoming, this[_incoming$])) return;
          if (!!dart.test(this[_bodyPaused])) dart.assertFailed(null, I[421], 1143, 16, "!_bodyPaused");
          this[_bodyPaused] = true;
          this[_pauseStateChanged]();
        }, T$.VoidTovoid());
        t$361858.onResume = dart.fn(() => {
          if (!dart.equals(incoming, this[_incoming$])) return;
          if (!dart.test(this[_bodyPaused])) dart.assertFailed(null, I[421], 1149, 16, "_bodyPaused");
          this[_bodyPaused] = false;
          this[_pauseStateChanged]();
        }, T$.VoidTovoid());
        t$361858.onCancel = dart.fn(() => {
          let t$361859;
          if (!dart.equals(incoming, this[_incoming$])) return;
          t$361859 = this[_socketSubscription$];
          t$361859 == null ? null : t$361859.cancel();
          this[_closeIncoming](true);
          this[_controller$0].close();
        }, T$0.VoidToNull());
        return t$361858;
      })();
      this[_bodyPaused] = true;
      this[_pauseStateChanged]();
      return incoming;
    }
    [_closeIncoming](closing = false) {
      if (closing == null) dart.nullFailed(I[421], 1164, 29, "closing");
      let tmp = this[_incoming$];
      if (tmp == null) return;
      tmp.close(closing);
      this[_incoming$] = null;
      let controller = this[_bodyController];
      if (controller != null) {
        controller.close();
        this[_bodyController] = null;
      }
      this[_bodyPaused] = false;
      this[_pauseStateChanged]();
    }
    [_pauseStateChanged]() {
      if (this[_incoming$] != null) {
        if (!dart.test(this[_bodyPaused]) && !dart.test(this[_parserCalled])) {
          this[_parse]();
        }
      } else {
        if (!dart.test(this[_paused]) && !dart.test(this[_parserCalled])) {
          this[_parse]();
        }
      }
    }
    [_reportHttpError](error, stackTrace = null) {
      let t$361858;
      t$361858 = this[_socketSubscription$];
      t$361858 == null ? null : t$361858.cancel();
      this[_state$1] = 27;
      this[_controller$0].addError(T$.Object()[_as](error), T$.StackTraceN()[_as](stackTrace));
      this[_controller$0].close();
    }
    [_reportBodyError](error, stackTrace = null) {
      let t$361858, t$361858$, t$361858$0;
      t$361858 = this[_socketSubscription$];
      t$361858 == null ? null : t$361858.cancel();
      this[_state$1] = 27;
      t$361858$ = this[_bodyController];
      t$361858$ == null ? null : t$361858$.addError(T$.Object()[_as](error), T$.StackTraceN()[_as](stackTrace));
      t$361858$0 = this[_bodyController];
      t$361858$0 == null ? null : t$361858$0.close();
    }
  };
  (_http._HttpParser.__ = function(_requestParser) {
    let t$361857;
    if (_requestParser == null) dart.nullFailed(I[421], 279, 22, "_requestParser");
    this[_parserCalled] = false;
    this[_buffer$2] = null;
    this[_index$3] = -1;
    this[_state$1] = 0;
    this[_httpVersionIndex] = null;
    this[_messageType] = 0;
    this[_statusCode] = 0;
    this[_statusCodeLength] = 0;
    this[_method$] = G.JSArrayOfint().of([]);
    this[_uriOrReasonPhrase] = G.JSArrayOfint().of([]);
    this[_headerField] = G.JSArrayOfint().of([]);
    this[_headerValue] = G.JSArrayOfint().of([]);
    this[_headersReceivedSize] = 0;
    this[_httpVersion] = 0;
    this[_transferLength$] = -1;
    this[_persistentConnection] = false;
    this[_connectionUpgrade] = false;
    this[_chunked] = false;
    this[_noMessageBody] = false;
    this[_remainingContent] = -1;
    this[_contentLength] = false;
    this[_transferEncoding] = false;
    this[connectMethod] = false;
    this[_headers] = null;
    this[_incoming$] = null;
    this[_socketSubscription$] = null;
    this[_paused] = true;
    this[_bodyPaused] = false;
    this[_bodyController] = null;
    this[_requestParser$] = _requestParser;
    this[_controller$0] = G$.StreamControllerOf_HttpIncoming().new({sync: true});
    this.$ti = this.$ti || T$13._HttpParser();
    dart.global.Object.getPrototypeOf(_http._HttpParser).new.call(this);
    t$361857 = this[_controller$0];
    (() => {
      t$361857.onListen = dart.fn(() => {
        this[_paused] = false;
      }, T$.VoidTovoid());
      t$361857.onPause = dart.fn(() => {
        this[_paused] = true;
        this[_pauseStateChanged]();
      }, T$.VoidTovoid());
      t$361857.onResume = dart.fn(() => {
        this[_paused] = false;
        this[_pauseStateChanged]();
      }, T$.VoidTovoid());
      t$361857.onCancel = dart.fn(() => {
        let t$361858;
        t$361858 = this[_socketSubscription$];
        t$361858 == null ? null : t$361858.cancel();
      }, T$0.VoidToNull());
      return t$361857;
    })();
    this[_reset$]();
  }).prototype = _http._HttpParser.prototype;
  dart.addRtiResources(_http._HttpParser, ["_http|_HttpParser"]);
  dart.setMethodSignature(_http._HttpParser, () => dart.global.Object.setPrototypeOf({
    listen: T$13.Fn__ToStreamSubscriptionOf_HttpIncoming(),
    listenToStream: T$13.StreamOfUint8ListTovoid(),
    [_parse]: T$.VoidTovoid(),
    [_headersEnd]: T$.VoidTobool(),
    [_doParse]: T$.VoidTovoid(),
    [_onData$1]: T$7.Uint8ListTovoid(),
    [_onDone$]: T$.VoidTovoid(),
    detachIncoming: T$13.VoidTo_HttpDetachedIncoming(),
    readUnparsedData: T$12.VoidToUint8ListN(),
    [_reset$]: T$.VoidTovoid(),
    [_releaseBuffer]: T$.VoidTovoid(),
    [_expect]: T$.intAndintTovoid(),
    [_expectHexDigit]: T$.intToint(),
    [_addWithValidation]: T$13.ListOfintAndintTovoid(),
    [_reportSizeLimitError]: T$.VoidTovoid(),
    [_createIncoming]: T$13.intTo_HttpIncoming(),
    [_closeIncoming]: T$13.boolTovoid$1(),
    [_pauseStateChanged]: T$.VoidTovoid(),
    [_reportHttpError]: T$13.dynamicAnddynamicTovoid$1(),
    [_reportBodyError]: T$13.dynamicAnddynamicTovoid$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpParser))));
  dart.setStaticMethodSignature(_http._HttpParser, () => ['requestParser', 'responseParser', '_isTokenChar', '_isValueChar', '_removeTrailingSpaces', '_tokenizeFieldValue', '_toLowerCaseByte', '_caseInsensitiveCompare']);
  dart.setGetterSignature(_http._HttpParser, () => dart.global.Object.setPrototypeOf({
    version: T$.StringN(),
    messageType: T$.int(),
    transferLength: T$.int(),
    upgrade: T$.bool(),
    persistentConnection: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpParser))));
  dart.setSetterSignature(_http._HttpParser, () => dart.global.Object.setPrototypeOf({isHead: T$.bool()}, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpParser))));
  dart.setLibraryUri(_http._HttpParser, I[416]);
  dart.setFieldSignature(_http._HttpParser, () => dart.global.Object.setPrototypeOf({
    [_parserCalled]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_buffer$2]: {type: T$2.Uint8ListN(), isConst: false, isFinal: false, libraryUri: I[43]},
    [_index$3]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_requestParser$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_state$1]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_httpVersionIndex]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_messageType]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_statusCode]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_statusCodeLength]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_method$]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_uriOrReasonPhrase]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_headerField]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_headerValue]: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_headersReceivedSize]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_httpVersion]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_transferLength$]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_persistentConnection]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_connectionUpgrade]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_chunked]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_noMessageBody]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_remainingContent]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_contentLength]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_transferEncoding]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    connectMethod: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_headers]: {type: T$13._HttpHeadersN(), isConst: false, isFinal: false, libraryUri: I[416]},
    [_incoming$]: {type: T$14._HttpIncomingN(), isConst: false, isFinal: false, libraryUri: I[416]},
    [_socketSubscription$]: {type: T$13.StreamSubscriptionNOfUint8List(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_paused]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_bodyPaused]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_controller$0]: {type: T$14.StreamControllerOf_HttpIncoming(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_bodyController]: {type: T$2.StreamControllerNOfUint8List(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpParser))));
  dart.setStaticFieldSignature(_http._HttpParser, () => ['_headerTotalSizeLimit', '_chunkSizeLimit']);
  dart.defineLazy(_http._HttpParser, {
    /*_http._HttpParser._headerTotalSizeLimit*/get _headerTotalSizeLimit() {
      return 1048576;
    },
    /*_http._HttpParser._chunkSizeLimit*/get _chunkSizeLimit() {
      return 2147483647;
    }
  }, false);
  var _timeoutCallback = dart.privateName(_http, "_timeoutCallback");
  var _prev = dart.privateName(_http, "_prev");
  var _next$4 = dart.privateName(_http, "_next");
  var _data$3 = dart.privateName(_http, "_data");
  var _lastSeen = dart.privateName(_http, "_lastSeen");
  var _removeFromTimeoutQueue = dart.privateName(_http, "_removeFromTimeoutQueue");
  var _sessions = dart.privateName(_http, "_sessions");
  var _bumpToEnd = dart.privateName(_http, "_bumpToEnd");
  _http._HttpSession = class _HttpSession extends core.Object {
    static ['_#new#tearOff'](_sessionManager, id) {
      if (_sessionManager == null) dart.nullFailed(I[422], 25, 21, "_sessionManager");
      if (id == null) dart.nullFailed(I[422], 25, 43, "id");
      return new _http._HttpSession.new(_sessionManager, id);
    }
    destroy() {
      if (!!dart.test(this[_destroyed])) dart.assertFailed(null, I[422], 28, 12, "!_destroyed");
      this[_destroyed] = true;
      this[_sessionManager$][_removeFromTimeoutQueue](this);
      this[_sessionManager$][_sessions][$remove](this.id);
    }
    [_markSeen]() {
      this[_lastSeen] = new core.DateTime.now();
      this[_sessionManager$][_bumpToEnd](this);
    }
    get lastSeen() {
      return this[_lastSeen];
    }
    get isNew() {
      return this[_isNew];
    }
    set onTimeout(callback) {
      this[_timeoutCallback] = callback;
    }
    containsValue(value) {
      return this[_data$3][$containsValue](value);
    }
    containsKey(key) {
      return this[_data$3][$containsKey](key);
    }
    _get(key) {
      return this[_data$3][$_get](key);
    }
    _set(key, value$) {
      let value = value$;
      this[_data$3][$_set](key, value);
      return value$;
    }
    putIfAbsent(key, ifAbsent) {
      T$.VoidTodynamic()[_as](ifAbsent);
      if (ifAbsent == null) dart.nullFailed(I[422], 57, 20, "ifAbsent");
      return this[_data$3][$putIfAbsent](key, ifAbsent);
    }
    addAll(other) {
      T$.Map()[_as](other);
      if (other == null) dart.nullFailed(I[422], 58, 14, "other");
      return this[_data$3][$addAll](other);
    }
    remove(key) {
      return this[_data$3][$remove](key);
    }
    clear() {
      this[_data$3][$clear]();
    }
    forEach(f) {
      if (f == null) dart.nullFailed(I[422], 64, 21, "f");
      this[_data$3][$forEach](f);
    }
    get entries() {
      return this[_data$3][$entries];
    }
    addEntries(entries) {
      T$14.IterableOfMapEntry()[_as](entries);
      if (entries == null) dart.nullFailed(I[422], 70, 38, "entries");
      this[_data$3][$addEntries](entries);
    }
    map(K, V, transform) {
      if (transform == null) dart.nullFailed(I[422], 74, 38, "transform");
      return this[_data$3][$map](K, V, transform);
    }
    removeWhere(test) {
      if (test == null) dart.nullFailed(I[422], 77, 25, "test");
      this[_data$3][$removeWhere](test);
    }
    cast(K, V) {
      return this[_data$3][$cast](K, V);
    }
    update(key, update, opts) {
      T$.dynamicTodynamic()[_as](update);
      if (update == null) dart.nullFailed(I[422], 82, 15, "update");
      let ifAbsent = opts && 'ifAbsent' in opts ? opts.ifAbsent : null;
      T$14.VoidToNdynamic()[_as](ifAbsent);
      return this[_data$3][$update](key, update, {ifAbsent: ifAbsent});
    }
    updateAll(update) {
      T$.dynamicAnddynamicTodynamic()[_as](update);
      if (update == null) dart.nullFailed(I[422], 85, 18, "update");
      this[_data$3][$updateAll](update);
    }
    get keys() {
      return this[_data$3][$keys];
    }
    get values() {
      return this[_data$3][$values];
    }
    get length() {
      return this[_data$3][$length];
    }
    get isEmpty() {
      return this[_data$3][$isEmpty];
    }
    get isNotEmpty() {
      return this[_data$3][$isNotEmpty];
    }
    toString() {
      return "HttpSession id:" + dart.str(this.id) + " " + dart.str(this[_data$3]);
    }
  };
  (_http._HttpSession.new = function(_sessionManager, id) {
    if (_sessionManager == null) dart.nullFailed(I[422], 25, 21, "_sessionManager");
    if (id == null) dart.nullFailed(I[422], 25, 43, "id");
    this[_destroyed] = false;
    this[_isNew] = true;
    this[_timeoutCallback] = null;
    this[_prev] = null;
    this[_next$4] = null;
    this[_data$3] = new _js_helper.LinkedMap.new();
    this[_sessionManager$] = _sessionManager;
    this.id = id;
    this[_lastSeen] = new core.DateTime.now();
    ;
  }).prototype = _http._HttpSession.prototype;
  dart.addRtiResources(_http._HttpSession, ["_http|_HttpSession", "_http|HttpSession", "core|Map"]);
  dart.setMethodSignature(_http._HttpSession, () => dart.global.Object.setPrototypeOf({
    destroy: T$.VoidTovoid(),
    [_markSeen]: T$.VoidTovoid(),
    containsValue: T$.ObjectNTobool(),
    [$containsValue]: T$.ObjectNTobool(),
    containsKey: T$.ObjectNTobool(),
    [$containsKey]: T$.ObjectNTobool(),
    _get: T$1.ObjectNTodynamic(),
    [$_get]: T$1.ObjectNTodynamic(),
    _set: T$.ObjectNAndObjectNTovoid(),
    [$_set]: T$.ObjectNAndObjectNTovoid(),
    putIfAbsent: T$14.ObjectNAndObjectNTodynamic(),
    [$putIfAbsent]: T$14.ObjectNAndObjectNTodynamic(),
    addAll: T$.ObjectNTovoid(),
    [$addAll]: T$.ObjectNTovoid(),
    remove: T$1.ObjectNTodynamic(),
    [$remove]: T$1.ObjectNTodynamic(),
    clear: T$.VoidTovoid(),
    [$clear]: T$.VoidTovoid(),
    forEach: T$14.FnTovoid$52(),
    [$forEach]: T$14.FnTovoid$52(),
    addEntries: T$.ObjectNTovoid(),
    [$addEntries]: T$.ObjectNTovoid(),
    map: T$14.FnToMapOfK$V(),
    [$map]: T$14.FnToMapOfK$V(),
    removeWhere: T$14.FnTovoid$53(),
    [$removeWhere]: T$14.FnTovoid$53(),
    cast: T$0.VoidToMapOfRK$RV(),
    [$cast]: T$0.VoidToMapOfRK$RV(),
    update: T$14.ObjectNAndObjectN__Todynamic(),
    [$update]: T$14.ObjectNAndObjectN__Todynamic(),
    updateAll: T$.ObjectNTovoid(),
    [$updateAll]: T$.ObjectNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpSession))));
  dart.setMethodsDefaultTypeArgSignature(_http._HttpSession, () => dart.global.Object.setPrototypeOf({
    map: [T$.dynamic(), T$.dynamic()],
    [$map]: [T$.dynamic(), T$.dynamic()],
    cast: [T$.dynamic(), T$.dynamic()],
    [$cast]: [T$.dynamic(), T$.dynamic()]
  }, dart.getMethodsDefaultTypeArgs(dart.global.Object.getPrototypeOf(_http._HttpSession))));
  dart.setGetterSignature(_http._HttpSession, () => dart.global.Object.setPrototypeOf({
    lastSeen: T$2.DateTime(),
    isNew: T$.bool(),
    entries: T$14.IterableOfMapEntry(),
    [$entries]: T$14.IterableOfMapEntry(),
    keys: T$.Iterable(),
    [$keys]: T$.Iterable(),
    values: T$.Iterable(),
    [$values]: T$.Iterable(),
    length: T$.int(),
    [$length]: T$.int(),
    isEmpty: T$.bool(),
    [$isEmpty]: T$.bool(),
    isNotEmpty: T$.bool(),
    [$isNotEmpty]: T$.bool()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._HttpSession))));
  dart.setSetterSignature(_http._HttpSession, () => dart.global.Object.setPrototypeOf({onTimeout: T$1.VoidToNvoid()}, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpSession))));
  dart.setLibraryUri(_http._HttpSession, I[416]);
  dart.setFieldSignature(_http._HttpSession, () => dart.global.Object.setPrototypeOf({
    [_destroyed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_isNew]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_lastSeen]: {type: T$2.DateTime(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_timeoutCallback]: {type: T$1.VoidToNvoid(), isConst: false, isFinal: false},
    [_sessionManager$]: {type: T$13._HttpSessionManager(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_prev]: {type: T$13._HttpSessionN(), isConst: false, isFinal: false, libraryUri: I[416]},
    [_next$4]: {type: T$13._HttpSessionN(), isConst: false, isFinal: false, libraryUri: I[416]},
    id: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_data$3]: {type: T$.Map(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpSession))));
  dart.defineExtensionMethods(_http._HttpSession, [
    'containsValue',
    'containsKey',
    '_get',
    '_set',
    'putIfAbsent',
    'addAll',
    'remove',
    'clear',
    'forEach',
    'addEntries',
    'map',
    'removeWhere',
    'cast',
    'update',
    'updateAll',
    'toString'
  ]);
  dart.defineExtensionAccessors(_http._HttpSession, [
    'entries',
    'keys',
    'values',
    'length',
    'isEmpty',
    'isNotEmpty'
  ]);
  var _sessionTimeout = dart.privateName(_http, "_sessionTimeout");
  var _head$ = dart.privateName(_http, "_head");
  var _tail$ = dart.privateName(_http, "_tail");
  var _timer$ = dart.privateName(_http, "_timer");
  var _addToTimeoutQueue = dart.privateName(_http, "_addToTimeoutQueue");
  var _stopTimer = dart.privateName(_http, "_stopTimer");
  var _startTimer = dart.privateName(_http, "_startTimer");
  var _timerTimeout = dart.privateName(_http, "_timerTimeout");
  _http._HttpSessionManager = class _HttpSessionManager extends core.Object {
    static ['_#new#tearOff']() {
      return new _http._HttpSessionManager.new();
    }
    createSessionId() {
      let data = _http._CryptoUtils.getRandomBytes(16);
      return _http._CryptoUtils.bytesToHex(data);
    }
    getSession(id) {
      if (id == null) dart.nullFailed(I[422], 118, 35, "id");
      return this[_sessions][$_get](id);
    }
    createSession() {
      let t$361860, t$361859, t$361858;
      let id = this.createSessionId();
      while (dart.test(this[_sessions][$containsKey](id))) {
        id = this.createSessionId();
      }
      let session = (t$361858 = this[_sessions], t$361859 = id, t$361860 = new _http._HttpSession.new(this, id), t$361858[$_set](t$361859, t$361860), t$361860);
      this[_addToTimeoutQueue](session);
      return session;
    }
    set sessionTimeout(timeout) {
      if (timeout == null) dart.nullFailed(I[422], 132, 31, "timeout");
      this[_sessionTimeout] = timeout;
      this[_stopTimer]();
      this[_startTimer]();
    }
    close() {
      this[_stopTimer]();
    }
    [_bumpToEnd](session) {
      if (session == null) dart.nullFailed(I[422], 142, 32, "session");
      this[_removeFromTimeoutQueue](session);
      this[_addToTimeoutQueue](session);
    }
    [_addToTimeoutQueue](session) {
      if (session == null) dart.nullFailed(I[422], 147, 40, "session");
      if (this[_head$] == null) {
        if (!(this[_tail$] == null)) dart.assertFailed(null, I[422], 149, 14, "_tail == null");
        this[_tail$] = this[_head$] = session;
        this[_startTimer]();
      } else {
        if (!(this[_timer$] != null)) dart.assertFailed(null, I[422], 153, 14, "_timer != null");
        let tail = dart.nullCheck(this[_tail$]);
        tail[_next$4] = session;
        session[_prev] = tail;
        this[_tail$] = session;
      }
    }
    [_removeFromTimeoutQueue](session) {
      let t$361858, t$361858$;
      if (session == null) dart.nullFailed(I[422], 162, 45, "session");
      let next = session[_next$4];
      let prev = session[_prev];
      session[_next$4] = session[_prev] = null;
      t$361858 = next;
      t$361858 == null ? null : t$361858[_prev] = prev;
      t$361858$ = prev;
      t$361858$ == null ? null : t$361858$[_next$4] = next;
      if (dart.equals(this[_tail$], session)) {
        this[_tail$] = prev;
      }
      if (dart.equals(this[_head$], session)) {
        this[_head$] = next;
        this[_stopTimer]();
        this[_startTimer]();
      }
    }
    [_timerTimeout]() {
      let t$361858;
      this[_stopTimer]();
      let session = dart.nullCheck(this[_head$]);
      session.destroy();
      t$361858 = session[_timeoutCallback];
      t$361858 == null ? null : t$361858();
    }
    [_startTimer]() {
      if (!(this[_timer$] == null)) dart.assertFailed(null, I[422], 187, 12, "_timer == null");
      let head = this[_head$];
      if (head != null) {
        let seconds = new core.DateTime.now().difference(head.lastSeen).inSeconds;
        this[_timer$] = async.Timer.new(new core.Duration.new({seconds: dart.notNull(this[_sessionTimeout]) - dart.notNull(seconds)}), dart.bind(this, _timerTimeout));
      }
    }
    [_stopTimer]() {
      let timer = this[_timer$];
      if (timer != null) {
        timer.cancel();
        this[_timer$] = null;
      }
    }
  };
  (_http._HttpSessionManager.new = function() {
    this[_sessionTimeout] = 20 * 60;
    this[_head$] = null;
    this[_tail$] = null;
    this[_timer$] = null;
    this[_sessions] = new (G$.IdentityMapOfString$_HttpSession()).new();
    ;
  }).prototype = _http._HttpSessionManager.prototype;
  dart.addRtiResources(_http._HttpSessionManager, ["_http|_HttpSessionManager"]);
  dart.setMethodSignature(_http._HttpSessionManager, () => dart.global.Object.setPrototypeOf({
    createSessionId: T$.VoidToString(),
    getSession: T$14.StringTo_HttpSessionN(),
    createSession: T$14.VoidTo_HttpSession(),
    close: T$.VoidTovoid(),
    [_bumpToEnd]: T$14._HttpSessionTovoid(),
    [_addToTimeoutQueue]: T$14._HttpSessionTovoid(),
    [_removeFromTimeoutQueue]: T$14._HttpSessionTovoid(),
    [_timerTimeout]: T$.VoidTovoid(),
    [_startTimer]: T$.VoidTovoid(),
    [_stopTimer]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._HttpSessionManager))));
  dart.setSetterSignature(_http._HttpSessionManager, () => dart.global.Object.setPrototypeOf({sessionTimeout: T$.int()}, dart.getSetters(dart.global.Object.getPrototypeOf(_http._HttpSessionManager))));
  dart.setLibraryUri(_http._HttpSessionManager, I[416]);
  dart.setFieldSignature(_http._HttpSessionManager, () => dart.global.Object.setPrototypeOf({
    [_sessions]: {type: T$14.MapOfString$_HttpSession(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_sessionTimeout]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_head$]: {type: T$13._HttpSessionN(), isConst: false, isFinal: false, libraryUri: I[416]},
    [_tail$]: {type: T$13._HttpSessionN(), isConst: false, isFinal: false, libraryUri: I[416]},
    [_timer$]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpSessionManager))));
  _http.HttpOverrides = class HttpOverrides extends core.Object {
    static get current() {
      let t$361858;
      return T$14.HttpOverridesN()[_as]((t$361858 = async.Zone.current._get(_http._httpOverridesToken), t$361858 == null ? _http.HttpOverrides._global : t$361858));
    }
    static set global(overrides) {
      _http.HttpOverrides._global = overrides;
    }
    static runZoned(R, body, opts) {
      if (body == null) dart.nullFailed(I[423], 49, 37, "body");
      let createHttpClient = opts && 'createHttpClient' in opts ? opts.createHttpClient : null;
      let findProxyFromEnvironment = opts && 'findProxyFromEnvironment' in opts ? opts.findProxyFromEnvironment : null;
      let overrides = new _http._HttpOverridesScope.new(createHttpClient, findProxyFromEnvironment);
      return async.runZoned(R, body, {zoneValues: new (G.LinkedMapOfObjectN$ObjectN()).from([_http._httpOverridesToken, overrides])});
    }
    static runWithHttpOverrides(R, body, overrides) {
      if (body == null) dart.nullFailed(I[423], 63, 49, "body");
      if (overrides == null) dart.nullFailed(I[423], 63, 69, "overrides");
      return async.runZoned(R, body, {zoneValues: new (G.LinkedMapOfObjectN$ObjectN()).from([_http._httpOverridesToken, overrides])});
    }
    createHttpClient(context) {
      return new _http._HttpClient.new(context);
    }
    findProxyFromEnvironment(url, environment) {
      if (url == null) dart.nullFailed(I[423], 80, 39, "url");
      return _http._HttpClient._findProxyFromEnvironment(url, environment);
    }
  };
  (_http.HttpOverrides.new = function() {
    ;
  }).prototype = _http.HttpOverrides.prototype;
  dart.addRtiResources(_http.HttpOverrides, ["_http|HttpOverrides"]);
  dart.setMethodSignature(_http.HttpOverrides, () => dart.global.Object.setPrototypeOf({
    createHttpClient: T$14.SecurityContextNToHttpClient(),
    findProxyFromEnvironment: T$13.UriAndMapNOfString$StringToString()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http.HttpOverrides))));
  dart.setStaticMethodSignature(_http.HttpOverrides, () => ['runZoned', 'runWithHttpOverrides']);
  dart.setStaticGetterSignature(_http.HttpOverrides, () => ['current']);
  dart.setStaticSetterSignature(_http.HttpOverrides, () => ['global']);
  dart.setLibraryUri(_http.HttpOverrides, I[416]);
  dart.setStaticFieldSignature(_http.HttpOverrides, () => ['_global']);
  dart.defineLazy(_http.HttpOverrides, {
    /*_http.HttpOverrides._global*/get _global() {
      return null;
    },
    set _global(value) {}
  }, false);
  var _previous$5 = dart.privateName(_http, "_previous");
  var _createHttpClient$ = dart.privateName(_http, "_createHttpClient");
  var _findProxyFromEnvironment$ = dart.privateName(_http, "_findProxyFromEnvironment");
  _http._HttpOverridesScope = class _HttpOverridesScope extends _http.HttpOverrides {
    static ['_#new#tearOff'](_createHttpClient, _findProxyFromEnvironment) {
      return new _http._HttpOverridesScope.new(_createHttpClient, _findProxyFromEnvironment);
    }
    createHttpClient(context) {
      let createHttpClient = this[_createHttpClient$];
      if (createHttpClient != null) return createHttpClient(context);
      let previous = this[_previous$5];
      if (previous != null) return previous.createHttpClient(context);
      return super.createHttpClient(context);
    }
    findProxyFromEnvironment(url, environment) {
      if (url == null) dart.nullFailed(I[423], 103, 39, "url");
      let findProxyFromEnvironment = this[_findProxyFromEnvironment$];
      if (findProxyFromEnvironment != null) {
        return findProxyFromEnvironment(url, environment);
      }
      let previous = this[_previous$5];
      if (previous != null) {
        return previous.findProxyFromEnvironment(url, environment);
      }
      return super.findProxyFromEnvironment(url, environment);
    }
  };
  (_http._HttpOverridesScope.new = function(_createHttpClient, _findProxyFromEnvironment) {
    this[_previous$5] = _http.HttpOverrides.current;
    this[_createHttpClient$] = _createHttpClient;
    this[_findProxyFromEnvironment$] = _findProxyFromEnvironment;
    ;
  }).prototype = _http._HttpOverridesScope.prototype;
  dart.addRtiResources(_http._HttpOverridesScope, ["_http|_HttpOverridesScope"]);
  dart.setLibraryUri(_http._HttpOverridesScope, I[416]);
  dart.setFieldSignature(_http._HttpOverridesScope, () => dart.global.Object.setPrototypeOf({
    [_previous$5]: {type: T$14.HttpOverridesN(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_createHttpClient$]: {type: T$14.SecurityContextNToNHttpClient(), isConst: false, isFinal: true},
    [_findProxyFromEnvironment$]: {type: T$14.UriAndMapNOfString$StringToNString(), isConst: false, isFinal: true}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._HttpOverridesScope))));
  _http.WebSocketStatus = class WebSocketStatus extends core.Object {};
  (_http.WebSocketStatus.new = function() {
    ;
  }).prototype = _http.WebSocketStatus.prototype;
  dart.addRtiResources(_http.WebSocketStatus, ["_http|WebSocketStatus"]);
  dart.setLibraryUri(_http.WebSocketStatus, I[416]);
  dart.setStaticFieldSignature(_http.WebSocketStatus, () => ['normalClosure', 'goingAway', 'protocolError', 'unsupportedData', 'reserved1004', 'noStatusReceived', 'abnormalClosure', 'invalidFramePayloadData', 'policyViolation', 'messageTooBig', 'missingMandatoryExtension', 'internalServerError', 'reserved1015']);
  dart.defineLazy(_http.WebSocketStatus, {
    /*_http.WebSocketStatus.normalClosure*/get normalClosure() {
      return 1000;
    },
    /*_http.WebSocketStatus.goingAway*/get goingAway() {
      return 1001;
    },
    /*_http.WebSocketStatus.protocolError*/get protocolError() {
      return 1002;
    },
    /*_http.WebSocketStatus.unsupportedData*/get unsupportedData() {
      return 1003;
    },
    /*_http.WebSocketStatus.reserved1004*/get reserved1004() {
      return 1004;
    },
    /*_http.WebSocketStatus.noStatusReceived*/get noStatusReceived() {
      return 1005;
    },
    /*_http.WebSocketStatus.abnormalClosure*/get abnormalClosure() {
      return 1006;
    },
    /*_http.WebSocketStatus.invalidFramePayloadData*/get invalidFramePayloadData() {
      return 1007;
    },
    /*_http.WebSocketStatus.policyViolation*/get policyViolation() {
      return 1008;
    },
    /*_http.WebSocketStatus.messageTooBig*/get messageTooBig() {
      return 1009;
    },
    /*_http.WebSocketStatus.missingMandatoryExtension*/get missingMandatoryExtension() {
      return 1010;
    },
    /*_http.WebSocketStatus.internalServerError*/get internalServerError() {
      return 1011;
    },
    /*_http.WebSocketStatus.reserved1015*/get reserved1015() {
      return 1015;
    }
  }, false);
  var clientNoContextTakeover$ = dart.privateName(_http, "CompressionOptions.clientNoContextTakeover");
  var serverNoContextTakeover$ = dart.privateName(_http, "CompressionOptions.serverNoContextTakeover");
  var clientMaxWindowBits$ = dart.privateName(_http, "CompressionOptions.clientMaxWindowBits");
  var serverMaxWindowBits$ = dart.privateName(_http, "CompressionOptions.serverMaxWindowBits");
  var enabled$0 = dart.privateName(_http, "CompressionOptions.enabled");
  var _createServerResponseHeader = dart.privateName(_http, "_createServerResponseHeader");
  var _createClientRequestHeader = dart.privateName(_http, "_createClientRequestHeader");
  var _createHeader = dart.privateName(_http, "_createHeader");
  _http.CompressionOptions = class CompressionOptions extends core.Object {
    get clientNoContextTakeover() {
      return this[clientNoContextTakeover$];
    }
    set clientNoContextTakeover(value) {
      super.clientNoContextTakeover = value;
    }
    get serverNoContextTakeover() {
      return this[serverNoContextTakeover$];
    }
    set serverNoContextTakeover(value) {
      super.serverNoContextTakeover = value;
    }
    get clientMaxWindowBits() {
      return this[clientMaxWindowBits$];
    }
    set clientMaxWindowBits(value) {
      super.clientMaxWindowBits = value;
    }
    get serverMaxWindowBits() {
      return this[serverMaxWindowBits$];
    }
    set serverMaxWindowBits(value) {
      super.serverMaxWindowBits = value;
    }
    get enabled() {
      return this[enabled$0];
    }
    set enabled(value) {
      super.enabled = value;
    }
    static ['_#new#tearOff'](opts) {
      let clientNoContextTakeover = opts && 'clientNoContextTakeover' in opts ? opts.clientNoContextTakeover : false;
      if (clientNoContextTakeover == null) dart.nullFailed(I[424], 86, 13, "clientNoContextTakeover");
      let serverNoContextTakeover = opts && 'serverNoContextTakeover' in opts ? opts.serverNoContextTakeover : false;
      if (serverNoContextTakeover == null) dart.nullFailed(I[424], 87, 12, "serverNoContextTakeover");
      let clientMaxWindowBits = opts && 'clientMaxWindowBits' in opts ? opts.clientMaxWindowBits : null;
      let serverMaxWindowBits = opts && 'serverMaxWindowBits' in opts ? opts.serverMaxWindowBits : null;
      let enabled = opts && 'enabled' in opts ? opts.enabled : true;
      if (enabled == null) dart.nullFailed(I[424], 90, 12, "enabled");
      return new _http.CompressionOptions.new({clientNoContextTakeover: clientNoContextTakeover, serverNoContextTakeover: serverNoContextTakeover, clientMaxWindowBits: clientMaxWindowBits, serverMaxWindowBits: serverMaxWindowBits, enabled: enabled});
    }
    [_createServerResponseHeader](requested) {
      let t$361858, t$361858$, t$361858$0;
      let info = new _http._CompressionMaxWindowBits.new("", 0);
      let part = (t$361858 = requested, t$361858 == null ? null : t$361858.parameters[$_get]("server_max_window_bits"));
      if (part != null) {
        if (part.length >= 2 && part[$startsWith]("0")) {
          dart.throw(new core.ArgumentError.new("Illegal 0 padding on value."));
        } else {
          let mwb = (t$361858$0 = (t$361858$ = this.serverMaxWindowBits, t$361858$ == null ? core.int.tryParse(part) : t$361858$), t$361858$0 == null ? 15 : t$361858$0);
          info.headerValue = "; server_max_window_bits=" + dart.str(mwb);
          info.maxWindowBits = mwb;
        }
      } else {
        info.headerValue = "";
        info.maxWindowBits = 15;
      }
      return info;
    }
    [_createClientRequestHeader](requested, size) {
      if (size == null) dart.nullFailed(I[424], 122, 65, "size");
      let info = "";
      if (requested != null) {
        info = "; client_max_window_bits=" + dart.str(size);
      } else {
        if (this.clientMaxWindowBits == null) {
          info = "; client_max_window_bits";
        } else {
          info = "; client_max_window_bits=" + dart.str(this.clientMaxWindowBits);
        }
        if (this.serverMaxWindowBits != null) {
          info = info + ("; server_max_window_bits=" + dart.str(this.serverMaxWindowBits));
        }
      }
      return info;
    }
    [_createHeader](requested = null) {
      let t$361858, t$361858$, t$361858$0, t$361858$1;
      let info = new _http._CompressionMaxWindowBits.new("", 0);
      if (!dart.test(this.enabled)) {
        return info;
      }
      info.headerValue = "permessage-deflate";
      if (dart.test(this.clientNoContextTakeover) && (requested == null || dart.test(requested.parameters[$containsKey]("client_no_context_takeover")))) {
        t$361858 = info;
        t$361858.headerValue = dart.notNull(t$361858.headerValue) + "; client_no_context_takeover";
      }
      if (dart.test(this.serverNoContextTakeover) && (requested == null || dart.test(requested.parameters[$containsKey]("server_no_context_takeover")))) {
        t$361858$ = info;
        t$361858$.headerValue = dart.notNull(t$361858$.headerValue) + "; server_no_context_takeover";
      }
      let headerList = this[_createServerResponseHeader](requested);
      t$361858$0 = info;
      t$361858$0.headerValue = dart.notNull(t$361858$0.headerValue) + dart.notNull(headerList.headerValue);
      info.maxWindowBits = headerList.maxWindowBits;
      t$361858$1 = info;
      t$361858$1.headerValue = dart.notNull(t$361858$1.headerValue) + dart.notNull(this[_createClientRequestHeader](requested, info.maxWindowBits));
      return info;
    }
  };
  (_http.CompressionOptions.new = function(opts) {
    let clientNoContextTakeover = opts && 'clientNoContextTakeover' in opts ? opts.clientNoContextTakeover : false;
    if (clientNoContextTakeover == null) dart.nullFailed(I[424], 86, 13, "clientNoContextTakeover");
    let serverNoContextTakeover = opts && 'serverNoContextTakeover' in opts ? opts.serverNoContextTakeover : false;
    if (serverNoContextTakeover == null) dart.nullFailed(I[424], 87, 12, "serverNoContextTakeover");
    let clientMaxWindowBits = opts && 'clientMaxWindowBits' in opts ? opts.clientMaxWindowBits : null;
    let serverMaxWindowBits = opts && 'serverMaxWindowBits' in opts ? opts.serverMaxWindowBits : null;
    let enabled = opts && 'enabled' in opts ? opts.enabled : true;
    if (enabled == null) dart.nullFailed(I[424], 90, 12, "enabled");
    this[clientNoContextTakeover$] = clientNoContextTakeover;
    this[serverNoContextTakeover$] = serverNoContextTakeover;
    this[clientMaxWindowBits$] = clientMaxWindowBits;
    this[serverMaxWindowBits$] = serverMaxWindowBits;
    this[enabled$0] = enabled;
    ;
  }).prototype = _http.CompressionOptions.prototype;
  dart.addRtiResources(_http.CompressionOptions, ["_http|CompressionOptions"]);
  dart.setMethodSignature(_http.CompressionOptions, () => dart.global.Object.setPrototypeOf({
    [_createServerResponseHeader]: T$14.HeaderValueNTo_CompressionMaxWindowBits(),
    [_createClientRequestHeader]: T$14.HeaderValueNAndintToString(),
    [_createHeader]: T$14.HeaderValueNTo_CompressionMaxWindowBits$1()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http.CompressionOptions))));
  dart.setLibraryUri(_http.CompressionOptions, I[416]);
  dart.setFieldSignature(_http.CompressionOptions, () => dart.global.Object.setPrototypeOf({
    clientNoContextTakeover: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    serverNoContextTakeover: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    clientMaxWindowBits: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    serverMaxWindowBits: {type: T$.intN(), isConst: false, isFinal: true, libraryUri: I[11]},
    enabled: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http.CompressionOptions))));
  dart.setStaticFieldSignature(_http.CompressionOptions, () => ['compressionDefault', 'compressionOff']);
  dart.defineLazy(_http.CompressionOptions, {
    /*_http.CompressionOptions.compressionDefault*/get compressionDefault() {
      return C[1263] || CT.C1263;
    },
    /*_http.CompressionOptions.compressionOff*/get compressionOff() {
      return C[1264] || CT.C1264;
    }
  }, false);
  _http.WebSocketTransformer = class WebSocketTransformer extends core.Object {
    static new(opts) {
      let protocolSelector = opts && 'protocolSelector' in opts ? opts.protocolSelector : null;
      let compression = opts && 'compression' in opts ? opts.compression : C[1263] || CT.C1263;
      if (compression == null) dart.nullFailed(I[424], 226, 26, "compression");
      return new _http._WebSocketTransformerImpl.new(protocolSelector, compression);
    }
    static ['_#new#tearOff'](opts) {
      let protocolSelector = opts && 'protocolSelector' in opts ? opts.protocolSelector : null;
      let compression = opts && 'compression' in opts ? opts.compression : C[1263] || CT.C1263;
      if (compression == null) dart.nullFailed(I[424], 226, 26, "compression");
      return _http.WebSocketTransformer.new({protocolSelector: protocolSelector, compression: compression});
    }
    static upgrade(request, opts) {
      if (request == null) dart.nullFailed(I[424], 245, 48, "request");
      let protocolSelector = opts && 'protocolSelector' in opts ? opts.protocolSelector : null;
      let compression = opts && 'compression' in opts ? opts.compression : C[1263] || CT.C1263;
      if (compression == null) dart.nullFailed(I[424], 247, 26, "compression");
      return _http._WebSocketTransformerImpl._upgrade(request, protocolSelector, compression);
    }
    static isUpgradeRequest(request) {
      if (request == null) dart.nullFailed(I[424], 253, 44, "request");
      return _http._WebSocketTransformerImpl._isUpgradeRequest(request);
    }
  };
  (_http.WebSocketTransformer[dart.mixinNew] = function() {
  }).prototype = _http.WebSocketTransformer.prototype;
  dart.addRtiResources(_http.WebSocketTransformer, ["_http|WebSocketTransformer", "async|StreamTransformer"]);
  dart.setStaticMethodSignature(_http.WebSocketTransformer, () => ['new', 'upgrade', 'isUpgradeRequest']);
  dart.setLibraryUri(_http.WebSocketTransformer, I[416]);
  var pingInterval = dart.privateName(_http, "WebSocket.pingInterval");
  _http.WebSocket = class WebSocket extends core.Object {
    get pingInterval() {
      return this[pingInterval];
    }
    set pingInterval(value) {
      this[pingInterval] = value;
    }
    static connect(url, opts) {
      if (url == null) dart.nullFailed(I[424], 314, 43, "url");
      let protocols = opts && 'protocols' in opts ? opts.protocols : null;
      let headers = opts && 'headers' in opts ? opts.headers : null;
      let compression = opts && 'compression' in opts ? opts.compression : C[1263] || CT.C1263;
      if (compression == null) dart.nullFailed(I[424], 317, 30, "compression");
      let customClient = opts && 'customClient' in opts ? opts.customClient : null;
      return _http._WebSocketImpl.connect(url, protocols, headers, {compression: compression, customClient: customClient});
    }
    static fromUpgradedSocket(socket, opts) {
      if (socket == null) dart.nullFailed(I[424], 344, 47, "socket");
      let protocol = opts && 'protocol' in opts ? opts.protocol : null;
      let serverSide = opts && 'serverSide' in opts ? opts.serverSide : null;
      let compression = opts && 'compression' in opts ? opts.compression : C[1263] || CT.C1263;
      if (compression == null) dart.nullFailed(I[424], 347, 26, "compression");
      if (serverSide == null) {
        dart.throw(new core.ArgumentError.new("The serverSide argument must be passed explicitly to WebSocket.fromUpgradedSocket."));
      }
      return new _http._WebSocketImpl._fromSocket(socket, protocol, compression, serverSide);
    }
    static ['_#fromUpgradedSocket#tearOff'](socket, opts) {
      if (socket == null) dart.nullFailed(I[424], 344, 47, "socket");
      let protocol = opts && 'protocol' in opts ? opts.protocol : null;
      let serverSide = opts && 'serverSide' in opts ? opts.serverSide : null;
      let compression = opts && 'compression' in opts ? opts.compression : C[1263] || CT.C1263;
      if (compression == null) dart.nullFailed(I[424], 347, 26, "compression");
      return _http.WebSocket.fromUpgradedSocket(socket, {protocol: protocol, serverSide: serverSide, compression: compression});
    }
    static get userAgent() {
      return _http._WebSocketImpl.userAgent;
    }
    static set userAgent(userAgent) {
      _http._WebSocketImpl.userAgent = userAgent;
    }
  };
  (_http.WebSocket.new = function() {
    this[pingInterval] = null;
    ;
  }).prototype = _http.WebSocket.prototype;
  dart.addRtiResources(_http.WebSocket, ["_http|WebSocket", "async|Stream", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setStaticMethodSignature(_http.WebSocket, () => ['connect', 'fromUpgradedSocket']);
  dart.setStaticGetterSignature(_http.WebSocket, () => ['userAgent']);
  dart.setStaticSetterSignature(_http.WebSocket, () => ['userAgent']);
  dart.setLibraryUri(_http.WebSocket, I[416]);
  dart.setFieldSignature(_http.WebSocket, () => dart.global.Object.setPrototypeOf({pingInterval: {type: T$1.DurationN(), isConst: false, isFinal: false, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http.WebSocket))));
  dart.setStaticFieldSignature(_http.WebSocket, () => ['connecting', 'open', 'closing', 'closed']);
  dart.defineLazy(_http.WebSocket, {
    /*_http.WebSocket.connecting*/get connecting() {
      return 0;
    },
    /*_http.WebSocket.open*/get open() {
      return 1;
    },
    /*_http.WebSocket.closing*/get closing() {
      return 2;
    },
    /*_http.WebSocket.closed*/get closed() {
      return 3;
    }
  }, false);
  var message$23 = dart.privateName(_http, "WebSocketException.message");
  _http.WebSocketException = class WebSocketException extends core.Object {
    get message() {
      return this[message$23];
    }
    set message(value) {
      super.message = value;
    }
    static ['_#new#tearOff'](message = "") {
      if (message == null) dart.nullFailed(I[424], 411, 34, "message");
      return new _http.WebSocketException.new(message);
    }
    toString() {
      return "WebSocketException: " + dart.str(this.message);
    }
  };
  (_http.WebSocketException.new = function(message = "") {
    if (message == null) dart.nullFailed(I[424], 411, 34, "message");
    this[message$23] = message;
    ;
  }).prototype = _http.WebSocketException.prototype;
  dart.addRtiResources(_http.WebSocketException, ["_http|WebSocketException", "io|IOException", "core|Exception"]);
  dart.setLibraryUri(_http.WebSocketException, I[416]);
  dart.setFieldSignature(_http.WebSocketException, () => dart.global.Object.setPrototypeOf({message: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http.WebSocketException))));
  dart.defineExtensionMethods(_http.WebSocketException, ['toString']);
  _http._WebSocketMessageType = class _WebSocketMessageType extends core.Object {
    static ['_#new#tearOff']() {
      return new _http._WebSocketMessageType.new();
    }
  };
  (_http._WebSocketMessageType.new = function() {
    ;
  }).prototype = _http._WebSocketMessageType.prototype;
  dart.addRtiResources(_http._WebSocketMessageType, ["_http|_WebSocketMessageType"]);
  dart.setLibraryUri(_http._WebSocketMessageType, I[416]);
  dart.setStaticFieldSignature(_http._WebSocketMessageType, () => ['NONE', 'TEXT', 'BINARY']);
  dart.defineLazy(_http._WebSocketMessageType, {
    /*_http._WebSocketMessageType.NONE*/get NONE() {
      return 0;
    },
    /*_http._WebSocketMessageType.TEXT*/get TEXT() {
      return 1;
    },
    /*_http._WebSocketMessageType.BINARY*/get BINARY() {
      return 2;
    }
  }, false);
  _http._WebSocketOpcode = class _WebSocketOpcode extends core.Object {
    static ['_#new#tearOff']() {
      return new _http._WebSocketOpcode.new();
    }
  };
  (_http._WebSocketOpcode.new = function() {
    ;
  }).prototype = _http._WebSocketOpcode.prototype;
  dart.addRtiResources(_http._WebSocketOpcode, ["_http|_WebSocketOpcode"]);
  dart.setLibraryUri(_http._WebSocketOpcode, I[416]);
  dart.setStaticFieldSignature(_http._WebSocketOpcode, () => ['CONTINUATION', 'TEXT', 'BINARY', 'RESERVED_3', 'RESERVED_4', 'RESERVED_5', 'RESERVED_6', 'RESERVED_7', 'CLOSE', 'PING', 'PONG', 'RESERVED_B', 'RESERVED_C', 'RESERVED_D', 'RESERVED_E', 'RESERVED_F']);
  dart.defineLazy(_http._WebSocketOpcode, {
    /*_http._WebSocketOpcode.CONTINUATION*/get CONTINUATION() {
      return 0;
    },
    /*_http._WebSocketOpcode.TEXT*/get TEXT() {
      return 1;
    },
    /*_http._WebSocketOpcode.BINARY*/get BINARY() {
      return 2;
    },
    /*_http._WebSocketOpcode.RESERVED_3*/get RESERVED_3() {
      return 3;
    },
    /*_http._WebSocketOpcode.RESERVED_4*/get RESERVED_4() {
      return 4;
    },
    /*_http._WebSocketOpcode.RESERVED_5*/get RESERVED_5() {
      return 5;
    },
    /*_http._WebSocketOpcode.RESERVED_6*/get RESERVED_6() {
      return 6;
    },
    /*_http._WebSocketOpcode.RESERVED_7*/get RESERVED_7() {
      return 7;
    },
    /*_http._WebSocketOpcode.CLOSE*/get CLOSE() {
      return 8;
    },
    /*_http._WebSocketOpcode.PING*/get PING() {
      return 9;
    },
    /*_http._WebSocketOpcode.PONG*/get PONG() {
      return 10;
    },
    /*_http._WebSocketOpcode.RESERVED_B*/get RESERVED_B() {
      return 11;
    },
    /*_http._WebSocketOpcode.RESERVED_C*/get RESERVED_C() {
      return 12;
    },
    /*_http._WebSocketOpcode.RESERVED_D*/get RESERVED_D() {
      return 13;
    },
    /*_http._WebSocketOpcode.RESERVED_E*/get RESERVED_E() {
      return 14;
    },
    /*_http._WebSocketOpcode.RESERVED_F*/get RESERVED_F() {
      return 15;
    }
  }, false);
  _http._EncodedString = class _EncodedString extends core.Object {
    static ['_#new#tearOff'](bytes) {
      if (bytes == null) dart.nullFailed(I[425], 41, 23, "bytes");
      return new _http._EncodedString.new(bytes);
    }
  };
  (_http._EncodedString.new = function(bytes) {
    if (bytes == null) dart.nullFailed(I[425], 41, 23, "bytes");
    this.bytes = bytes;
    ;
  }).prototype = _http._EncodedString.prototype;
  dart.addRtiResources(_http._EncodedString, ["_http|_EncodedString"]);
  dart.setLibraryUri(_http._EncodedString, I[416]);
  dart.setFieldSignature(_http._EncodedString, () => dart.global.Object.setPrototypeOf({bytes: {type: T$.ListOfint(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._EncodedString))));
  _http._CompressionMaxWindowBits = class _CompressionMaxWindowBits extends core.Object {
    static ['_#new#tearOff'](headerValue, maxWindowBits) {
      if (headerValue == null) dart.nullFailed(I[425], 50, 34, "headerValue");
      if (maxWindowBits == null) dart.nullFailed(I[425], 50, 52, "maxWindowBits");
      return new _http._CompressionMaxWindowBits.new(headerValue, maxWindowBits);
    }
    toString() {
      return this.headerValue;
    }
  };
  (_http._CompressionMaxWindowBits.new = function(headerValue, maxWindowBits) {
    if (headerValue == null) dart.nullFailed(I[425], 50, 34, "headerValue");
    if (maxWindowBits == null) dart.nullFailed(I[425], 50, 52, "maxWindowBits");
    this.headerValue = headerValue;
    this.maxWindowBits = maxWindowBits;
    ;
  }).prototype = _http._CompressionMaxWindowBits.prototype;
  dart.addRtiResources(_http._CompressionMaxWindowBits, ["_http|_CompressionMaxWindowBits"]);
  dart.setLibraryUri(_http._CompressionMaxWindowBits, I[416]);
  dart.setFieldSignature(_http._CompressionMaxWindowBits, () => dart.global.Object.setPrototypeOf({
    headerValue: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    maxWindowBits: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._CompressionMaxWindowBits))));
  dart.defineExtensionMethods(_http._CompressionMaxWindowBits, ['toString']);
  var closeCode = dart.privateName(_http, "_WebSocketProtocolTransformer.closeCode");
  var closeReason = dart.privateName(_http, "_WebSocketProtocolTransformer.closeReason");
  var _fin = dart.privateName(_http, "_fin");
  var _compressed = dart.privateName(_http, "_compressed");
  var _opcode = dart.privateName(_http, "_opcode");
  var _len = dart.privateName(_http, "_len");
  var _masked = dart.privateName(_http, "_masked");
  var _remainingLenBytes = dart.privateName(_http, "_remainingLenBytes");
  var _remainingMaskingKeyBytes = dart.privateName(_http, "_remainingMaskingKeyBytes");
  var _remainingPayloadBytes = dart.privateName(_http, "_remainingPayloadBytes");
  var _unmaskingIndex = dart.privateName(_http, "_unmaskingIndex");
  var _currentMessageType = dart.privateName(_http, "_currentMessageType");
  var _eventSink$ = dart.privateName(_http, "_eventSink");
  var _maskingBytes = dart.privateName(_http, "_maskingBytes");
  var _payload$ = dart.privateName(_http, "_payload");
  var _serverSide$ = dart.privateName(_http, "_serverSide");
  var _deflate$ = dart.privateName(_http, "_deflate");
  var _isControlFrame = dart.privateName(_http, "_isControlFrame");
  var _lengthDone = dart.privateName(_http, "_lengthDone");
  var _maskDone = dart.privateName(_http, "_maskDone");
  var _unmask = dart.privateName(_http, "_unmask");
  var _controlFrameEnd = dart.privateName(_http, "_controlFrameEnd");
  var _messageFrameEnd = dart.privateName(_http, "_messageFrameEnd");
  var _startPayload = dart.privateName(_http, "_startPayload");
  var _prepareForNextFrame = dart.privateName(_http, "_prepareForNextFrame");
  _http._WebSocketProtocolTransformer = class _WebSocketProtocolTransformer extends G$.StreamTransformerBaseOfListOfint$dynamic() {
    get closeCode() {
      return this[closeCode];
    }
    set closeCode(value) {
      if (value == null) dart.nullFailed(I[425], 88, 7, "closeCode");
      this[closeCode] = value;
    }
    get closeReason() {
      return this[closeReason];
    }
    set closeReason(value) {
      if (value == null) dart.nullFailed(I[425], 89, 10, "closeReason");
      this[closeReason] = value;
    }
    static ['_#new#tearOff'](_serverSide = false, _deflate = null) {
      if (_serverSide == null) dart.nullFailed(I[425], 98, 39, "_serverSide");
      return new _http._WebSocketProtocolTransformer.new(_serverSide, _deflate);
    }
    bind(stream) {
      T$2.StreamOfListOfint()[_as](stream);
      if (stream == null) dart.nullFailed(I[425], 101, 25, "stream");
      return async.Stream.eventTransformed(stream, dart.fn(eventSink => {
        if (eventSink == null) dart.nullFailed(I[425], 102, 55, "eventSink");
        if (this[_eventSink$] != null) {
          dart.throw(new core.StateError.new("WebSocket transformer already used."));
        }
        this[_eventSink$] = eventSink;
        return this;
      }, T$14.EventSinkTo_WebSocketProtocolTransformer()));
    }
    addError(error, stackTrace = null) {
      if (error == null) dart.nullFailed(I[425], 111, 24, "error");
      core.ArgumentError.checkNotNull(T$.Object(), error, "error");
      dart.nullCheck(this[_eventSink$]).addError(error, stackTrace);
    }
    close() {
      dart.nullCheck(this[_eventSink$]).close();
    }
    add(bytes) {
      let t$361858;
      T$.ListOfint()[_as](bytes);
      if (bytes == null) dart.nullFailed(I[425], 122, 22, "bytes");
      let buffer = T$.Uint8List()[_is](bytes) ? bytes : _native_typed_data.NativeUint8List.fromList(bytes);
      let index = 0;
      let lastIndex = buffer[$length];
      if (this[_state$1] === 5) {
        dart.throw(new _http.WebSocketException.new("Data on closed connection"));
      }
      if (this[_state$1] === 6) {
        dart.throw(new _http.WebSocketException.new("Data on failed connection"));
      }
      while (index < dart.notNull(lastIndex) && this[_state$1] !== 5 && this[_state$1] !== 6) {
        let byte = buffer[$_get](index);
        if (dart.notNull(this[_state$1]) <= 2) {
          if (this[_state$1] === 0) {
            this[_fin] = (dart.notNull(byte) & 128) !== 0;
            if ((dart.notNull(byte) & (32 | 16) >>> 0) !== 0) {
              dart.throw(new _http.WebSocketException.new("Protocol error"));
            }
            this[_opcode] = (dart.notNull(byte) & 15) >>> 0;
            if (this[_opcode] !== 0) {
              if ((dart.notNull(byte) & 64) !== 0) {
                this[_compressed] = true;
              } else {
                this[_compressed] = false;
              }
            }
            if (dart.notNull(this[_opcode]) <= 2) {
              if (this[_opcode] === 0) {
                if (this[_currentMessageType] === 0) {
                  dart.throw(new _http.WebSocketException.new("Protocol error"));
                }
              } else {
                if (!(this[_opcode] === 1 || this[_opcode] === 2)) dart.assertFailed(null, I[425], 159, 22, "_opcode == _WebSocketOpcode.TEXT ||\n                  _opcode == _WebSocketOpcode.BINARY");
                if (this[_currentMessageType] !== 0) {
                  dart.throw(new _http.WebSocketException.new("Protocol error"));
                }
                this[_currentMessageType] = this[_opcode];
              }
            } else if (dart.notNull(this[_opcode]) >= 8 && dart.notNull(this[_opcode]) <= 10) {
              if (!dart.test(this[_fin])) dart.throw(new _http.WebSocketException.new("Protocol error"));
            } else {
              dart.throw(new _http.WebSocketException.new("Protocol error"));
            }
            this[_state$1] = 1;
          } else if (this[_state$1] === 1) {
            this[_masked] = (dart.notNull(byte) & 128) !== 0;
            this[_len] = dart.notNull(byte) & 127;
            if (dart.test(this[_isControlFrame]()) && dart.notNull(this[_len]) > 125) {
              dart.throw(new _http.WebSocketException.new("Protocol error"));
            }
            if (this[_len] === 126) {
              this[_len] = 0;
              this[_remainingLenBytes] = 2;
              this[_state$1] = 2;
            } else if (this[_len] === 127) {
              this[_len] = 0;
              this[_remainingLenBytes] = 8;
              this[_state$1] = 2;
            } else {
              if (!(dart.notNull(this[_len]) < 126)) dart.assertFailed(null, I[425], 189, 20, "_len < 126");
              this[_lengthDone]();
            }
          } else {
            if (!(this[_state$1] === 2)) dart.assertFailed(null, I[425], 193, 18, "_state == LEN_REST");
            this[_len] = (dart.notNull(this[_len]) << 8 | dart.notNull(byte)) >>> 0;
            this[_remainingLenBytes] = dart.notNull(this[_remainingLenBytes]) - 1;
            if (this[_remainingLenBytes] === 0) {
              this[_lengthDone]();
            }
          }
        } else {
          if (this[_state$1] === 3) {
            this[_maskingBytes][$_set](4 - dart.notNull((t$361858 = this[_remainingMaskingKeyBytes], this[_remainingMaskingKeyBytes] = dart.notNull(t$361858) - 1, t$361858)), byte);
            if (this[_remainingMaskingKeyBytes] === 0) {
              this[_maskDone]();
            }
          } else {
            if (!(this[_state$1] === 4)) dart.assertFailed(null, I[425], 207, 18, "_state == PAYLOAD");
            let payloadLength = math.min(T$.int(), dart.notNull(lastIndex) - index, this[_remainingPayloadBytes]);
            this[_remainingPayloadBytes] = dart.notNull(this[_remainingPayloadBytes]) - payloadLength;
            if (dart.test(this[_masked])) {
              this[_unmask](index, payloadLength, buffer);
            }
            this[_payload$].add(typed_data.Uint8List.view(buffer[$buffer], dart.notNull(buffer[$offsetInBytes]) + index, payloadLength));
            index = index + payloadLength;
            if (dart.test(this[_isControlFrame]())) {
              if (this[_remainingPayloadBytes] === 0) this[_controlFrameEnd]();
            } else {
              if (this[_currentMessageType] !== 1 && this[_currentMessageType] !== 2) {
                dart.throw(new _http.WebSocketException.new("Protocol error"));
              }
              if (this[_remainingPayloadBytes] === 0) this[_messageFrameEnd]();
            }
            index = index - 1;
          }
        }
        index = index + 1;
      }
    }
    [_unmask](index, length, buffer) {
      let t$361860, t$361859, t$361858, t$361859$, t$361858$, t$361860$, t$361859$0, t$361858$0;
      if (index == null) dart.nullFailed(I[425], 239, 20, "index");
      if (length == null) dart.nullFailed(I[425], 239, 31, "length");
      if (buffer == null) dart.nullFailed(I[425], 239, 49, "buffer");
      if (dart.notNull(length) >= 16) {
        let startOffset = 16 - (dart.notNull(index) & 15);
        let end = dart.notNull(index) + startOffset;
        for (let i = index; dart.notNull(i) < end; i = dart.notNull(i) + 1) {
          t$361858 = buffer;
          t$361859 = i;
          t$361858[$_set](t$361859, (dart.notNull(t$361858[$_get](t$361859)) ^ dart.notNull(this[_maskingBytes][$_get](dart.notNull((t$361860 = this[_unmaskingIndex], this[_unmaskingIndex] = dart.notNull(t$361860) + 1, t$361860)) & 3))) >>> 0);
        }
        index = dart.notNull(index) + startOffset;
        length = dart.notNull(length) - startOffset;
        let blockCount = (dart.notNull(length) / 16)[$truncate]();
        if (blockCount > 0) {
          let mask = 0;
          for (let i = 3; i >= 0; i = i - 1) {
            mask = (mask << 8 | dart.notNull(this[_maskingBytes][$_get](dart.notNull(this[_unmaskingIndex]) + i & 3))) >>> 0;
          }
          let blockMask = new _native_typed_data.NativeInt32x4.new(mask, mask, mask, mask);
          let blockBuffer = typed_data.Int32x4List.view(buffer[$buffer], dart.notNull(buffer[$offsetInBytes]) + dart.notNull(index), blockCount);
          for (let i = 0; i < dart.notNull(blockBuffer[$length]); i = i + 1) {
            t$361858$ = blockBuffer;
            t$361859$ = i;
            t$361858$[$_set](t$361859$, t$361858$[$_get](t$361859$)['^'](blockMask));
          }
          let bytes = blockCount * 16;
          index = dart.notNull(index) + bytes;
          length = dart.notNull(length) - bytes;
        }
      }
      let end = dart.notNull(index) + dart.notNull(length);
      for (let i = index; dart.notNull(i) < end; i = dart.notNull(i) + 1) {
        t$361858$0 = buffer;
        t$361859$0 = i;
        t$361858$0[$_set](t$361859$0, (dart.notNull(t$361858$0[$_get](t$361859$0)) ^ dart.notNull(this[_maskingBytes][$_get](dart.notNull((t$361860$ = this[_unmaskingIndex], this[_unmaskingIndex] = dart.notNull(t$361860$) + 1, t$361860$)) & 3))) >>> 0);
      }
    }
    [_lengthDone]() {
      if (dart.test(this[_masked])) {
        if (!dart.test(this[_serverSide$])) {
          dart.throw(new _http.WebSocketException.new("Received masked frame from server"));
        }
        this[_state$1] = 3;
      } else {
        if (dart.test(this[_serverSide$])) {
          dart.throw(new _http.WebSocketException.new("Received unmasked frame from client"));
        }
        this[_remainingPayloadBytes] = this[_len];
        this[_startPayload]();
      }
    }
    [_maskDone]() {
      this[_remainingPayloadBytes] = this[_len];
      this[_startPayload]();
    }
    [_startPayload]() {
      if (this[_remainingPayloadBytes] === 0) {
        if (dart.test(this[_isControlFrame]())) {
          switch (this[_opcode]) {
            case 8:
              {
                this[_state$1] = 5;
                dart.nullCheck(this[_eventSink$]).close();
                break;
              }
            case 9:
              {
                dart.nullCheck(this[_eventSink$]).add(new _http._WebSocketPing.new());
                break;
              }
            case 10:
              {
                dart.nullCheck(this[_eventSink$]).add(new _http._WebSocketPong.new());
                break;
              }
          }
          this[_prepareForNextFrame]();
        } else {
          this[_messageFrameEnd]();
        }
      } else {
        this[_state$1] = 4;
      }
    }
    [_messageFrameEnd]() {
      if (dart.test(this[_fin])) {
        let bytes = this[_payload$].takeBytes();
        let deflate = this[_deflate$];
        if (deflate != null && dart.test(this[_compressed])) {
          bytes = deflate.processIncomingMessage(bytes);
        }
        switch (this[_currentMessageType]) {
          case 1:
            {
              dart.nullCheck(this[_eventSink$]).add(convert.utf8.decode(bytes));
              break;
            }
          case 2:
            {
              dart.nullCheck(this[_eventSink$]).add(bytes);
              break;
            }
        }
        this[_currentMessageType] = 0;
      }
      this[_prepareForNextFrame]();
    }
    [_controlFrameEnd]() {
      switch (this[_opcode]) {
        case 8:
          {
            this.closeCode = 1005;
            let payload = this[_payload$].takeBytes();
            if (dart.test(payload[$isNotEmpty])) {
              if (payload[$length] === 1) {
                dart.throw(new _http.WebSocketException.new("Protocol error"));
              }
              this.closeCode = (dart.notNull(payload[$_get](0)) << 8 | dart.notNull(payload[$_get](1))) >>> 0;
              if (this.closeCode === 1005) {
                dart.throw(new _http.WebSocketException.new("Protocol error"));
              }
              if (dart.notNull(payload[$length]) > 2) {
                this.closeReason = convert.utf8.decode(payload[$sublist](2));
              }
            }
            this[_state$1] = 5;
            dart.nullCheck(this[_eventSink$]).close();
            break;
          }
        case 9:
          {
            dart.nullCheck(this[_eventSink$]).add(new _http._WebSocketPing.new(this[_payload$].takeBytes()));
            break;
          }
        case 10:
          {
            dart.nullCheck(this[_eventSink$]).add(new _http._WebSocketPong.new(this[_payload$].takeBytes()));
            break;
          }
      }
      this[_prepareForNextFrame]();
    }
    [_isControlFrame]() {
      return this[_opcode] === 8 || this[_opcode] === 9 || this[_opcode] === 10;
    }
    [_prepareForNextFrame]() {
      if (this[_state$1] !== 5 && this[_state$1] !== 6) this[_state$1] = 0;
      this[_fin] = false;
      this[_opcode] = -1;
      this[_len] = -1;
      this[_remainingLenBytes] = -1;
      this[_remainingMaskingKeyBytes] = 4;
      this[_remainingPayloadBytes] = -1;
      this[_unmaskingIndex] = 0;
    }
  };
  (_http._WebSocketProtocolTransformer.new = function(_serverSide = false, _deflate = null) {
    if (_serverSide == null) dart.nullFailed(I[425], 98, 39, "_serverSide");
    this[_state$1] = 0;
    this[_fin] = false;
    this[_compressed] = false;
    this[_opcode] = -1;
    this[_len] = -1;
    this[_masked] = false;
    this[_remainingLenBytes] = -1;
    this[_remainingMaskingKeyBytes] = 4;
    this[_remainingPayloadBytes] = -1;
    this[_unmaskingIndex] = 0;
    this[_currentMessageType] = 0;
    this[closeCode] = 1005;
    this[closeReason] = "";
    this[_eventSink$] = null;
    this[_maskingBytes] = _native_typed_data.NativeUint8List.new(4);
    this[_payload$] = _internal.BytesBuilder.new({copy: false});
    this[_serverSide$] = _serverSide;
    this[_deflate$] = _deflate;
    this.$ti = this.$ti || T$14._WebSocketProtocolTransformer();
    dart.global.Object.getPrototypeOf(_http._WebSocketProtocolTransformer).new.call(this);
    ;
  }).prototype = _http._WebSocketProtocolTransformer.prototype;
  dart.addRtiResources(_http._WebSocketProtocolTransformer, ["_http|_WebSocketProtocolTransformer", "async|EventSink", "core|Sink"]);
  dart.setMethodSignature(_http._WebSocketProtocolTransformer, () => dart.global.Object.setPrototypeOf({
    bind: T$14.ObjectNToStream(),
    addError: T$1.ObjectAndStackTraceNTovoid(),
    close: T$.VoidTovoid(),
    add: T$.ObjectNTovoid(),
    [_unmask]: T$14.intAndintAndUint8ListTovoid(),
    [_lengthDone]: T$.VoidTovoid(),
    [_maskDone]: T$.VoidTovoid(),
    [_startPayload]: T$.VoidTovoid(),
    [_messageFrameEnd]: T$.VoidTovoid(),
    [_controlFrameEnd]: T$.VoidTovoid(),
    [_isControlFrame]: T$.VoidTobool(),
    [_prepareForNextFrame]: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._WebSocketProtocolTransformer))));
  dart.setLibraryUri(_http._WebSocketProtocolTransformer, I[416]);
  dart.setFieldSignature(_http._WebSocketProtocolTransformer, () => dart.global.Object.setPrototypeOf({
    [_state$1]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_fin]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_compressed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_opcode]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_len]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_masked]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_remainingLenBytes]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_remainingMaskingKeyBytes]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_remainingPayloadBytes]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_unmaskingIndex]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_currentMessageType]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    closeCode: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    closeReason: {type: T$.String(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_eventSink$]: {type: T$1.EventSinkN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_serverSide$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_maskingBytes]: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]},
    [_payload$]: {type: T$2.BytesBuilder(), isConst: false, isFinal: true, libraryUri: I[36]},
    [_deflate$]: {type: T$14._WebSocketPerMessageDeflateN(), isConst: false, isFinal: true, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._WebSocketProtocolTransformer))));
  dart.setStaticFieldSignature(_http._WebSocketProtocolTransformer, () => ['START', 'LEN_FIRST', 'LEN_REST', 'MASK', 'PAYLOAD', 'CLOSED', 'FAILURE', 'FIN', 'RSV1', 'RSV2', 'RSV3', 'OPCODE']);
  dart.defineLazy(_http._WebSocketProtocolTransformer, {
    /*_http._WebSocketProtocolTransformer.START*/get START() {
      return 0;
    },
    /*_http._WebSocketProtocolTransformer.LEN_FIRST*/get LEN_FIRST() {
      return 1;
    },
    /*_http._WebSocketProtocolTransformer.LEN_REST*/get LEN_REST() {
      return 2;
    },
    /*_http._WebSocketProtocolTransformer.MASK*/get MASK() {
      return 3;
    },
    /*_http._WebSocketProtocolTransformer.PAYLOAD*/get PAYLOAD() {
      return 4;
    },
    /*_http._WebSocketProtocolTransformer.CLOSED*/get CLOSED() {
      return 5;
    },
    /*_http._WebSocketProtocolTransformer.FAILURE*/get FAILURE() {
      return 6;
    },
    /*_http._WebSocketProtocolTransformer.FIN*/get FIN() {
      return 128;
    },
    /*_http._WebSocketProtocolTransformer.RSV1*/get RSV1() {
      return 64;
    },
    /*_http._WebSocketProtocolTransformer.RSV2*/get RSV2() {
      return 32;
    },
    /*_http._WebSocketProtocolTransformer.RSV3*/get RSV3() {
      return 16;
    },
    /*_http._WebSocketProtocolTransformer.OPCODE*/get OPCODE() {
      return 15;
    }
  }, false);
  _http._WebSocketPing = class _WebSocketPing extends core.Object {
    static ['_#new#tearOff'](payload = null) {
      return new _http._WebSocketPing.new(payload);
    }
  };
  (_http._WebSocketPing.new = function(payload = null) {
    this.payload = payload;
    ;
  }).prototype = _http._WebSocketPing.prototype;
  dart.addRtiResources(_http._WebSocketPing, ["_http|_WebSocketPing"]);
  dart.setLibraryUri(_http._WebSocketPing, I[416]);
  dart.setFieldSignature(_http._WebSocketPing, () => dart.global.Object.setPrototypeOf({payload: {type: T$2.ListNOfint(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._WebSocketPing))));
  _http._WebSocketPong = class _WebSocketPong extends core.Object {
    static ['_#new#tearOff'](payload = null) {
      return new _http._WebSocketPong.new(payload);
    }
  };
  (_http._WebSocketPong.new = function(payload = null) {
    this.payload = payload;
    ;
  }).prototype = _http._WebSocketPong.prototype;
  dart.addRtiResources(_http._WebSocketPong, ["_http|_WebSocketPong"]);
  dart.setLibraryUri(_http._WebSocketPong, I[416]);
  dart.setFieldSignature(_http._WebSocketPong, () => dart.global.Object.setPrototypeOf({payload: {type: T$2.ListNOfint(), isConst: false, isFinal: true, libraryUri: I[11]}}, dart.getFields(dart.global.Object.getPrototypeOf(_http._WebSocketPong))));
  var _protocolSelector$ = dart.privateName(_http, "_protocolSelector");
  var _compression$ = dart.privateName(_http, "_compression");
  _http._WebSocketTransformerImpl = class _WebSocketTransformerImpl extends G$.StreamTransformerBaseOfHttpRequest$WebSocket() {
    static ['_#new#tearOff'](_protocolSelector, _compression) {
      if (_compression == null) dart.nullFailed(I[425], 414, 58, "_compression");
      return new _http._WebSocketTransformerImpl.new(_protocolSelector, _compression);
    }
    bind(stream) {
      T$14.StreamOfHttpRequest()[_as](stream);
      if (stream == null) dart.nullFailed(I[425], 416, 46, "stream");
      stream.listen(dart.fn(request => {
        if (request == null) dart.nullFailed(I[425], 417, 20, "request");
        _http._WebSocketTransformerImpl._upgrade(request, this[_protocolSelector$], this[_compression$]).then(T$.void(), dart.fn(webSocket => {
          if (webSocket == null) dart.nullFailed(I[425], 419, 28, "webSocket");
          return this[_controller$0].add(webSocket);
        }, T$14.WebSocketTovoid())).catchError(dart.bind(this[_controller$0], 'addError'));
      }, T$14.HttpRequestTovoid()), {onDone: dart.fn(() => {
          this[_controller$0].close();
        }, T$.VoidTovoid())});
      return this[_controller$0].stream;
    }
    static _tokenizeFieldValue(headerValue) {
      if (headerValue == null) dart.nullFailed(I[425], 428, 50, "headerValue");
      let tokens = G.JSArrayOfString().of([]);
      let start = 0;
      let index = 0;
      while (index < headerValue.length) {
        if (headerValue[$_get](index) === ",") {
          tokens[$add](headerValue[$substring](start, index));
          start = index + 1;
        } else if (headerValue[$_get](index) === " " || headerValue[$_get](index) === "\t") {
          start = start + 1;
        }
        index = index + 1;
      }
      tokens[$add](headerValue[$substring](start, index));
      return tokens;
    }
    static _upgrade(request, protocolSelector, compression) {
      let t$361858;
      if (request == null) dart.nullFailed(I[425], 445, 49, "request");
      if (compression == null) dart.nullFailed(I[425], 446, 63, "compression");
      let response = request.response;
      if (!dart.test(_http._WebSocketTransformerImpl._isUpgradeRequest(request))) {
        t$361858 = response;
        (() => {
          t$361858.statusCode = 400;
          t$361858.close();
          return t$361858;
        })();
        return G$.FutureOfWebSocket().error(new _http.WebSocketException.new("Invalid WebSocket upgrade request"));
      }
      function upgrade(protocol) {
        let t$361858;
        t$361858 = response;
        (() => {
          t$361858.statusCode = 101;
          t$361858.headers.add("connection", "Upgrade");
          t$361858.headers.add("upgrade", "websocket");
          return t$361858;
        })();
        let key = dart.nullCheck(request.headers.value("Sec-WebSocket-Key"));
        let sha1 = new _http._SHA1.new();
        sha1.add((key + dart.str(_http._webSocketGUID))[$codeUnits]);
        let accept = convert.base64Encode(sha1.close());
        response.headers.add("Sec-WebSocket-Accept", accept);
        if (protocol != null) {
          response.headers.add("Sec-WebSocket-Protocol", protocol);
        }
        let deflate = _http._WebSocketTransformerImpl._negotiateCompression(request, response, compression);
        response.headers.contentLength = 0;
        return response.detachSocket().then(T$14.WebSocket(), dart.fn(socket => {
          if (socket == null) dart.nullFailed(I[425], 475, 55, "socket");
          return new _http._WebSocketImpl._fromSocket(socket, protocol, compression, true, deflate);
        }, T$14.SocketTo_WebSocketImpl()));
      }
      dart.fn(upgrade, T$14.StringNToFutureOfWebSocket());
      let protocols = request.headers._get("Sec-WebSocket-Protocol");
      if (protocols != null && protocolSelector != null) {
        let tokenizedProtocols = _http._WebSocketTransformerImpl._tokenizeFieldValue(protocols[$join](", "));
        return G$.FutureOfString().new(dart.fn(() => T$14.FutureOrOfString()[_as](protocolSelector(tokenizedProtocols)), T$14.VoidToFutureOrOfString())).then(T$.String(), dart.fn(protocol => {
          if (protocol == null) dart.nullFailed(I[425], 487, 26, "protocol");
          if (!dart.test(tokenizedProtocols[$contains](protocol))) {
            dart.throw(new _http.WebSocketException.new("Selected protocol is not in the list of available protocols"));
          }
          return protocol;
        }, T$.StringToString())).catchError(dart.fn(error => {
          let t$361858;
          t$361858 = response;
          (() => {
            t$361858.statusCode = 500;
            t$361858.close();
            return t$361858;
          })();
          dart.throw(T$.Object()[_as](error));
        }, T$7.dynamicToNever())).then(T$14.WebSocket(), upgrade);
      } else {
        return upgrade(null);
      }
    }
    static _negotiateCompression(request, response, compression) {
      if (request == null) dart.nullFailed(I[425], 504, 73, "request");
      if (response == null) dart.nullFailed(I[425], 505, 20, "response");
      if (compression == null) dart.nullFailed(I[425], 505, 49, "compression");
      let extensionHeader = request.headers.value("Sec-WebSocket-Extensions");
      extensionHeader == null ? extensionHeader = "" : null;
      let hv = _http.HeaderValue.parse(extensionHeader, {valueSeparator: ","});
      if (dart.test(compression.enabled) && hv.value === "permessage-deflate") {
        let info = compression[_createHeader](hv);
        response.headers.add("Sec-WebSocket-Extensions", info.headerValue);
        let serverNoContextTakeover = dart.test(hv.parameters[$containsKey]("server_no_context_takeover")) && dart.test(compression.serverNoContextTakeover);
        let clientNoContextTakeover = dart.test(hv.parameters[$containsKey]("client_no_context_takeover")) && dart.test(compression.clientNoContextTakeover);
        let deflate = new _http._WebSocketPerMessageDeflate.new({serverNoContextTakeover: serverNoContextTakeover, clientNoContextTakeover: clientNoContextTakeover, serverMaxWindowBits: info.maxWindowBits, clientMaxWindowBits: info.maxWindowBits, serverSide: true});
        return deflate;
      }
      return null;
    }
    static _isUpgradeRequest(request) {
      if (request == null) dart.nullFailed(I[425], 534, 45, "request");
      if (request.method !== "GET") {
        return false;
      }
      let connectionHeader = request.headers._get("connection");
      if (connectionHeader == null) {
        return false;
      }
      let isUpgrade = false;
      for (let value of connectionHeader) {
        if (value[$toLowerCase]() === "upgrade") {
          isUpgrade = true;
          break;
        }
      }
      if (!isUpgrade) return false;
      let upgrade = request.headers.value("upgrade");
      if (upgrade == null || upgrade[$toLowerCase]() !== "websocket") {
        return false;
      }
      let version = request.headers.value("Sec-WebSocket-Version");
      if (version == null || version !== "13") {
        return false;
      }
      let key = request.headers.value("Sec-WebSocket-Key");
      if (key == null) {
        return false;
      }
      return true;
    }
  };
  (_http._WebSocketTransformerImpl.new = function(_protocolSelector, _compression) {
    if (_compression == null) dart.nullFailed(I[425], 414, 58, "_compression");
    this[_controller$0] = G$.StreamControllerOfWebSocket().new({sync: true});
    this[_protocolSelector$] = _protocolSelector;
    this[_compression$] = _compression;
    this.$ti = this.$ti || T$14._WebSocketTransformerImpl();
    dart.global.Object.getPrototypeOf(_http._WebSocketTransformerImpl).new.call(this);
    ;
  }).prototype = _http._WebSocketTransformerImpl.prototype;
  dart.addRtiResources(_http._WebSocketTransformerImpl, ["_http|_WebSocketTransformerImpl", "_http|WebSocketTransformer", "async|StreamTransformer"]);
  dart.setMethodSignature(_http._WebSocketTransformerImpl, () => dart.global.Object.setPrototypeOf({bind: T$14.ObjectNToStreamOfWebSocket()}, dart.getMethods(dart.global.Object.getPrototypeOf(_http._WebSocketTransformerImpl))));
  dart.setStaticMethodSignature(_http._WebSocketTransformerImpl, () => ['_tokenizeFieldValue', '_upgrade', '_negotiateCompression', '_isUpgradeRequest']);
  dart.setLibraryUri(_http._WebSocketTransformerImpl, I[416]);
  dart.setFieldSignature(_http._WebSocketTransformerImpl, () => dart.global.Object.setPrototypeOf({
    [_controller$0]: {type: T$14.StreamControllerOfWebSocket(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_protocolSelector$]: {type: T$14.ListOfStringToNdynamic(), isConst: false, isFinal: true},
    [_compression$]: {type: T$14.CompressionOptions(), isConst: false, isFinal: true, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._WebSocketTransformerImpl))));
  var _ensureDecoder = dart.privateName(_http, "_ensureDecoder");
  var _ensureEncoder = dart.privateName(_http, "_ensureEncoder");
  _http._WebSocketPerMessageDeflate = class _WebSocketPerMessageDeflate extends core.Object {
    static ['_#new#tearOff'](opts) {
      let clientMaxWindowBits = opts && 'clientMaxWindowBits' in opts ? opts.clientMaxWindowBits : 15;
      if (clientMaxWindowBits == null) dart.nullFailed(I[425], 577, 13, "clientMaxWindowBits");
      let serverMaxWindowBits = opts && 'serverMaxWindowBits' in opts ? opts.serverMaxWindowBits : 15;
      if (serverMaxWindowBits == null) dart.nullFailed(I[425], 578, 12, "serverMaxWindowBits");
      let serverNoContextTakeover = opts && 'serverNoContextTakeover' in opts ? opts.serverNoContextTakeover : false;
      if (serverNoContextTakeover == null) dart.nullFailed(I[425], 579, 12, "serverNoContextTakeover");
      let clientNoContextTakeover = opts && 'clientNoContextTakeover' in opts ? opts.clientNoContextTakeover : false;
      if (clientNoContextTakeover == null) dart.nullFailed(I[425], 580, 12, "clientNoContextTakeover");
      let serverSide = opts && 'serverSide' in opts ? opts.serverSide : false;
      if (serverSide == null) dart.nullFailed(I[425], 581, 12, "serverSide");
      return new _http._WebSocketPerMessageDeflate.new({clientMaxWindowBits: clientMaxWindowBits, serverMaxWindowBits: serverMaxWindowBits, serverNoContextTakeover: serverNoContextTakeover, clientNoContextTakeover: clientNoContextTakeover, serverSide: serverSide});
    }
    [_ensureDecoder]() {
      let t$361858;
      t$361858 = this.decoder;
      return t$361858 == null ? this.decoder = io.RawZLibFilter.inflateFilter({windowBits: dart.test(this.serverSide) ? this.clientMaxWindowBits : this.serverMaxWindowBits, raw: true}) : t$361858;
    }
    [_ensureEncoder]() {
      let t$361858;
      t$361858 = this.encoder;
      return t$361858 == null ? this.encoder = io.RawZLibFilter.deflateFilter({windowBits: dart.test(this.serverSide) ? this.serverMaxWindowBits : this.clientMaxWindowBits, raw: true}) : t$361858;
    }
    processIncomingMessage(msg) {
      if (msg == null) dart.nullFailed(I[425], 591, 46, "msg");
      let decoder = this[_ensureDecoder]();
      let data = G.JSArrayOfint().of([]);
      data[$addAll](msg);
      data[$addAll](C[1265] || CT.C1265);
      decoder.process(data, 0, data[$length]);
      let result = _internal.BytesBuilder.new();
      while (true) {
        let out = decoder.processed();
        if (out == null) break;
        result.add(out);
      }
      if (dart.test(this.serverSide) && dart.test(this.clientNoContextTakeover) || !dart.test(this.serverSide) && dart.test(this.serverNoContextTakeover)) {
        this.decoder = null;
      }
      return result.takeBytes();
    }
    processOutgoingMessage(msg) {
      if (msg == null) dart.nullFailed(I[425], 615, 46, "msg");
      let encoder = this[_ensureEncoder]();
      let result = G.JSArrayOfint().of([]);
      let buffer = null;
      if (!T$.Uint8List()[_is](msg)) {
        for (let i = 0; i < dart.notNull(msg[$length]); i = i + 1) {
          if (dart.notNull(msg[$_get](i)) < 0 || 255 < dart.notNull(msg[$_get](i))) {
            dart.throw(new core.ArgumentError.new("List element is not a byte value " + "(value " + dart.str(msg[$_get](i)) + " at index " + dart.strSafe(i) + ")"));
          }
        }
        buffer = _native_typed_data.NativeUint8List.fromList(msg);
      } else {
        buffer = msg;
      }
      encoder.process(buffer, 0, buffer[$length]);
      while (true) {
        let out = encoder.processed();
        if (out == null) break;
        result[$addAll](out);
      }
      if (!dart.test(this.serverSide) && dart.test(this.clientNoContextTakeover) || dart.test(this.serverSide) && dart.test(this.serverNoContextTakeover)) {
        this.encoder = null;
      }
      if (dart.notNull(result[$length]) > 4) {
        result = result[$sublist](0, dart.notNull(result[$length]) - 4);
      }
      if (dart.test(result[$isEmpty])) {
        return G.JSArrayOfint().of([0]);
      }
      return result;
    }
  };
  (_http._WebSocketPerMessageDeflate.new = function(opts) {
    let clientMaxWindowBits = opts && 'clientMaxWindowBits' in opts ? opts.clientMaxWindowBits : 15;
    if (clientMaxWindowBits == null) dart.nullFailed(I[425], 577, 13, "clientMaxWindowBits");
    let serverMaxWindowBits = opts && 'serverMaxWindowBits' in opts ? opts.serverMaxWindowBits : 15;
    if (serverMaxWindowBits == null) dart.nullFailed(I[425], 578, 12, "serverMaxWindowBits");
    let serverNoContextTakeover = opts && 'serverNoContextTakeover' in opts ? opts.serverNoContextTakeover : false;
    if (serverNoContextTakeover == null) dart.nullFailed(I[425], 579, 12, "serverNoContextTakeover");
    let clientNoContextTakeover = opts && 'clientNoContextTakeover' in opts ? opts.clientNoContextTakeover : false;
    if (clientNoContextTakeover == null) dart.nullFailed(I[425], 580, 12, "clientNoContextTakeover");
    let serverSide = opts && 'serverSide' in opts ? opts.serverSide : false;
    if (serverSide == null) dart.nullFailed(I[425], 581, 12, "serverSide");
    this.decoder = null;
    this.encoder = null;
    this.clientMaxWindowBits = clientMaxWindowBits;
    this.serverMaxWindowBits = serverMaxWindowBits;
    this.serverNoContextTakeover = serverNoContextTakeover;
    this.clientNoContextTakeover = clientNoContextTakeover;
    this.serverSide = serverSide;
    ;
  }).prototype = _http._WebSocketPerMessageDeflate.prototype;
  dart.addRtiResources(_http._WebSocketPerMessageDeflate, ["_http|_WebSocketPerMessageDeflate"]);
  dart.setMethodSignature(_http._WebSocketPerMessageDeflate, () => dart.global.Object.setPrototypeOf({
    [_ensureDecoder]: T$14.VoidToRawZLibFilter(),
    [_ensureEncoder]: T$14.VoidToRawZLibFilter(),
    processIncomingMessage: T$3.ListOfintToUint8List(),
    processOutgoingMessage: T$13.ListOfintToListOfint()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._WebSocketPerMessageDeflate))));
  dart.setLibraryUri(_http._WebSocketPerMessageDeflate, I[416]);
  dart.setFieldSignature(_http._WebSocketPerMessageDeflate, () => dart.global.Object.setPrototypeOf({
    serverNoContextTakeover: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    clientNoContextTakeover: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    clientMaxWindowBits: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    serverMaxWindowBits: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    serverSide: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    decoder: {type: T$14.RawZLibFilterN(), isConst: false, isFinal: false, libraryUri: I[119]},
    encoder: {type: T$14.RawZLibFilterN(), isConst: false, isFinal: false, libraryUri: I[119]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._WebSocketPerMessageDeflate))));
  var _deflateHelper = dart.privateName(_http, "_deflateHelper");
  var _outCloseCode = dart.privateName(_http, "_outCloseCode");
  var _outCloseReason = dart.privateName(_http, "_outCloseReason");
  _http._WebSocketOutgoingTransformer = class _WebSocketOutgoingTransformer extends G$.StreamTransformerBaseOfdynamic$ListOfint() {
    static ['_#new#tearOff'](webSocket) {
      if (webSocket == null) dart.nullFailed(I[425], 670, 38, "webSocket");
      return new _http._WebSocketOutgoingTransformer.new(webSocket);
    }
    bind(stream) {
      T$3.Stream()[_as](stream);
      if (stream == null) dart.nullFailed(I[425], 673, 33, "stream");
      return G.StreamOfListOfint().eventTransformed(stream, dart.fn(eventSink => {
        if (eventSink == null) dart.nullFailed(I[425], 675, 31, "eventSink");
        if (this[_eventSink$] != null) {
          dart.throw(new core.StateError.new("WebSocket transformer already used"));
        }
        this[_eventSink$] = eventSink;
        return this;
      }, T$14.EventSinkOfListOfintTo_WebSocketOutgoingTransformer()));
    }
    add(message) {
      if (T$14._WebSocketPong()[_is](message)) {
        this.addFrame(10, message.payload);
        return;
      }
      if (T$14._WebSocketPing()[_is](message)) {
        this.addFrame(9, message.payload);
        return;
      }
      let data = null;
      let opcode = null;
      if (message != null) {
        let messageData = null;
        if (typeof message == 'string') {
          opcode = 1;
          messageData = convert.utf8.encode(message);
        } else if (T$.ListOfint()[_is](message)) {
          opcode = 2;
          messageData = message;
        } else if (T$14._EncodedString()[_is](message)) {
          opcode = 1;
          messageData = message.bytes;
        } else {
          dart.throw(new core.ArgumentError.new(message));
        }
        let deflateHelper = this[_deflateHelper];
        if (deflateHelper != null) {
          messageData = deflateHelper.processOutgoingMessage(messageData);
        }
        data = messageData;
      } else {
        opcode = 1;
      }
      this.addFrame(opcode, data);
    }
    addError(error, stackTrace = null) {
      if (error == null) dart.nullFailed(I[425], 720, 24, "error");
      core.ArgumentError.checkNotNull(T$.Object(), error, "error");
      dart.nullCheck(this[_eventSink$]).addError(error, stackTrace);
    }
    close() {
      let code = this.webSocket[_outCloseCode];
      let reason = this.webSocket[_outCloseReason];
      let data = null;
      if (code != null) {
        data = (() => {
          let t$361858 = G.JSArrayOfint().of([dart.notNull(code) >> 8 & 255, dart.notNull(code) & 255]);
          if (reason != null) t$361858[$addAll](convert.utf8.encode(reason));
          return t$361858;
        })();
      }
      this.addFrame(8, data);
      dart.nullCheck(this[_eventSink$]).close();
    }
    addFrame(opcode, data) {
      if (opcode == null) dart.nullFailed(I[425], 741, 21, "opcode");
      _http._WebSocketOutgoingTransformer.createFrame(opcode, data, this.webSocket[_serverSide$], this[_deflateHelper] != null && (opcode === 1 || opcode === 2))[$forEach](dart.fn(e => {
        if (e == null) dart.nullFailed(I[425], 749, 19, "e");
        dart.nullCheck(this[_eventSink$]).add(e);
      }, T$.ListOfintTovoid()));
    }
    static createFrame(opcode, data, serverSide, compressed) {
      let t$361859, t$361859$, t$361859$0, t$361859$1, t$361860, t$361859$2, t$361860$, t$361859$3, t$361860$0, t$361859$4;
      if (opcode == null) dart.nullFailed(I[425], 755, 11, "opcode");
      if (serverSide == null) dart.nullFailed(I[425], 755, 41, "serverSide");
      if (compressed == null) dart.nullFailed(I[425], 755, 58, "compressed");
      let mask = !dart.test(serverSide);
      let dataLength = data == null ? 0 : data[$length];
      let headerSize = mask ? 6 : 2;
      if (dart.notNull(dataLength) > 65535) {
        headerSize = headerSize + 8;
      } else if (dart.notNull(dataLength) > 125) {
        headerSize = headerSize + 2;
      }
      let header = _native_typed_data.NativeUint8List.new(headerSize);
      let index = 0;
      let hoc = (128 | (dart.test(compressed) ? 64 : 0) | (dart.notNull(opcode) & 15) >>> 0) >>> 0;
      header[$_set]((t$361859 = index, index = t$361859 + 1, t$361859), hoc);
      let lengthBytes = 1;
      if (dart.notNull(dataLength) > 65535) {
        header[$_set]((t$361859$ = index, index = t$361859$ + 1, t$361859$), 127);
        lengthBytes = 8;
      } else if (dart.notNull(dataLength) > 125) {
        header[$_set]((t$361859$0 = index, index = t$361859$0 + 1, t$361859$0), 126);
        lengthBytes = 2;
      }
      for (let i = 0; i < lengthBytes; i = i + 1) {
        header[$_set]((t$361859$1 = index, index = t$361859$1 + 1, t$361859$1), dataLength[$rightShift]((lengthBytes - 1 - i) * 8) & 255);
      }
      if (mask) {
        t$361859$2 = header;
        t$361860 = 1;
        t$361859$2[$_set](t$361860, (dart.notNull(t$361859$2[$_get](t$361860)) | 1 << 7) >>> 0);
        let maskBytes = _http._CryptoUtils.getRandomBytes(4);
        header[$setRange](index, index + 4, maskBytes);
        index = index + 4;
        if (data != null) {
          let list = null;
          if (opcode === 1 && T$.Uint8List()[_is](data)) {
            list = data;
          } else {
            if (T$.Uint8List()[_is](data)) {
              list = _native_typed_data.NativeUint8List.fromList(data);
            } else {
              list = _native_typed_data.NativeUint8List.new(data[$length]);
              for (let i = 0; i < dart.notNull(data[$length]); i = i + 1) {
                if (dart.notNull(data[$_get](i)) < 0 || 255 < dart.notNull(data[$_get](i))) {
                  dart.throw(new core.ArgumentError.new("List element is not a byte value " + "(value " + dart.str(data[$_get](i)) + " at index " + dart.strSafe(i) + ")"));
                }
                list[$_set](i, data[$_get](i));
              }
            }
          }
          let blockCount = (dart.notNull(list[$length]) / 16)[$truncate]();
          if (blockCount > 0) {
            let mask = 0;
            for (let i = 3; i >= 0; i = i - 1) {
              mask = (mask << 8 | dart.notNull(maskBytes[$_get](i))) >>> 0;
            }
            let blockMask = new _native_typed_data.NativeInt32x4.new(mask, mask, mask, mask);
            let blockBuffer = typed_data.Int32x4List.view(list[$buffer], list[$offsetInBytes], blockCount);
            for (let i = 0; i < dart.notNull(blockBuffer[$length]); i = i + 1) {
              t$361859$3 = blockBuffer;
              t$361860$ = i;
              t$361859$3[$_set](t$361860$, t$361859$3[$_get](t$361860$)['^'](blockMask));
            }
          }
          for (let i = blockCount * 16; i < dart.notNull(list[$length]); i = i + 1) {
            t$361859$4 = list;
            t$361860$0 = i;
            t$361859$4[$_set](t$361860$0, (dart.notNull(t$361859$4[$_get](t$361860$0)) ^ dart.notNull(maskBytes[$_get](i & 3))) >>> 0);
          }
          data = list;
        }
      }
      if (!(index === headerSize)) dart.assertFailed(null, I[425], 834, 12, "index == headerSize");
      if (data == null) {
        return G.JSArrayOfListOfint().of([header]);
      } else {
        return G.JSArrayOfListOfint().of([header, data]);
      }
    }
  };
  (_http._WebSocketOutgoingTransformer.new = function(webSocket) {
    if (webSocket == null) dart.nullFailed(I[425], 670, 38, "webSocket");
    this[_eventSink$] = null;
    this.webSocket = webSocket;
    this[_deflateHelper] = webSocket[_deflate$];
    this.$ti = this.$ti || T$14._WebSocketOutgoingTransformer();
    dart.global.Object.getPrototypeOf(_http._WebSocketOutgoingTransformer).new.call(this);
    ;
  }).prototype = _http._WebSocketOutgoingTransformer.prototype;
  dart.addRtiResources(_http._WebSocketOutgoingTransformer, ["_http|_WebSocketOutgoingTransformer", "async|EventSink", "core|Sink"]);
  dart.setMethodSignature(_http._WebSocketOutgoingTransformer, () => dart.global.Object.setPrototypeOf({
    bind: T$14.ObjectNToStreamOfListOfint(),
    add: T$.ObjectNTovoid(),
    addError: T$1.ObjectAndStackTraceNTovoid(),
    close: T$.VoidTovoid(),
    addFrame: T$14.intAndListNOfintTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._WebSocketOutgoingTransformer))));
  dart.setStaticMethodSignature(_http._WebSocketOutgoingTransformer, () => ['createFrame']);
  dart.setLibraryUri(_http._WebSocketOutgoingTransformer, I[416]);
  dart.setFieldSignature(_http._WebSocketOutgoingTransformer, () => dart.global.Object.setPrototypeOf({
    webSocket: {type: T$14._WebSocketImpl(), isConst: false, isFinal: true, libraryUri: I[416]},
    [_eventSink$]: {type: T$14.EventSinkNOfListOfint(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_deflateHelper]: {type: T$14._WebSocketPerMessageDeflateN(), isConst: false, isFinal: true, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._WebSocketOutgoingTransformer))));
  var _issuedPause = dart.privateName(_http, "_issuedPause");
  var _closed$ = dart.privateName(_http, "_closed");
  var _closeCompleter$ = dart.privateName(_http, "_closeCompleter");
  var _completer = dart.privateName(_http, "_completer");
  var _onListen = dart.privateName(_http, "_onListen");
  var _onPause$ = dart.privateName(_http, "_onPause");
  var _onResume$ = dart.privateName(_http, "_onResume");
  var _cancel$ = dart.privateName(_http, "_cancel");
  var _done = dart.privateName(_http, "_done");
  var _ensureController = dart.privateName(_http, "_ensureController");
  _http._WebSocketConsumer = class _WebSocketConsumer extends core.Object {
    static ['_#new#tearOff'](webSocket, socket) {
      if (webSocket == null) dart.nullFailed(I[425], 853, 27, "webSocket");
      if (socket == null) dart.nullFailed(I[425], 853, 43, "socket");
      return new _http._WebSocketConsumer.new(webSocket, socket);
    }
    [_onListen]() {
      let t$361859;
      t$361859 = this[_subscription$0];
      t$361859 == null ? null : t$361859.cancel();
    }
    [_onPause$]() {
      let subscription = this[_subscription$0];
      if (subscription != null) {
        subscription.pause();
      } else {
        this[_issuedPause] = true;
      }
    }
    [_onResume$]() {
      let subscription = this[_subscription$0];
      if (subscription != null) {
        subscription.resume();
      } else {
        this[_issuedPause] = false;
      }
    }
    [_cancel$]() {
      let subscription = this[_subscription$0];
      if (subscription != null) {
        this[_subscription$0] = null;
        subscription.cancel();
      }
    }
    [_ensureController]() {
      let controller = this[_controller$0];
      if (controller != null) return controller;
      controller = this[_controller$0] = async.StreamController.new({sync: true, onPause: dart.bind(this, _onPause$), onResume: dart.bind(this, _onResume$), onCancel: dart.bind(this, _onListen)});
      let stream = controller.stream.transform(T$.ListOfint(), new _http._WebSocketOutgoingTransformer.new(this.webSocket));
      this.socket.addStream(stream).then(T$.Null(), dart.fn(_ => {
        this[_done]();
        this[_closeCompleter$].complete(this.webSocket);
      }, T$0.dynamicToNull()), {onError: dart.fn((error, stackTrace) => {
          if (error == null) dart.nullFailed(I[425], 898, 25, "error");
          if (stackTrace == null) dart.nullFailed(I[425], 898, 43, "stackTrace");
          this[_closed$] = true;
          this[_cancel$]();
          if (T$2.ArgumentError()[_is](error)) {
            if (!dart.test(this[_done](error, stackTrace))) {
              this[_closeCompleter$].completeError(error, stackTrace);
            }
          } else {
            this[_done]();
            this[_closeCompleter$].complete(this.webSocket);
          }
        }, T$.ObjectAndStackTraceToNull())});
      return controller;
    }
    [_done](error = null, stackTrace = null) {
      let completer = this[_completer];
      if (completer == null) return false;
      if (error != null) {
        completer.completeError(error, stackTrace);
      } else {
        completer.complete(this.webSocket);
      }
      this[_completer] = null;
      return true;
    }
    addStream(stream) {
      T$3.Stream()[_as](stream);
      if (stream == null) dart.nullFailed(I[425], 925, 27, "stream");
      if (dart.test(this[_closed$])) {
        stream.listen(null).cancel();
        return async.Future.value(this.webSocket);
      }
      this[_ensureController]();
      let completer = this[_completer] = async.Completer.new();
      let subscription = this[_subscription$0] = stream.listen(dart.fn(data => {
        dart.nullCheck(this[_controller$0]).add(data);
      }, T$.dynamicTovoid()), {onDone: dart.bind(this, _done), onError: dart.bind(this, _done), cancelOnError: true});
      if (dart.test(this[_issuedPause])) {
        subscription.pause();
        this[_issuedPause] = false;
      }
      return completer.future;
    }
    close() {
      this[_ensureController]().close();
      return this[_closeCompleter$].future.then(T$.dynamic(), dart.fn(_ => this.socket.close().catchError(dart.fn(_ => {
      }, T$0.dynamicToNull())).then(T$.dynamic(), dart.fn(_ => this.webSocket, T$14.dynamicTo_WebSocketImpl())), T$.dynamicToFuture()));
    }
    add(data) {
      if (dart.test(this[_closed$])) return;
      let controller = this[_ensureController]();
      if (dart.test(controller.isClosed)) return;
      controller.add(data);
    }
    closeSocket() {
      this[_closed$] = true;
      this[_cancel$]();
      this.close();
    }
  };
  (_http._WebSocketConsumer.new = function(webSocket, socket) {
    if (webSocket == null) dart.nullFailed(I[425], 853, 27, "webSocket");
    if (socket == null) dart.nullFailed(I[425], 853, 43, "socket");
    this[_controller$0] = null;
    this[_subscription$0] = null;
    this[_issuedPause] = false;
    this[_closed$] = false;
    this[_closeCompleter$] = G$.CompleterOfWebSocket().new();
    this[_completer] = null;
    this.webSocket = webSocket;
    this.socket = socket;
    ;
  }).prototype = _http._WebSocketConsumer.prototype;
  dart.addRtiResources(_http._WebSocketConsumer, ["_http|_WebSocketConsumer", "async|StreamConsumer"]);
  dart.setMethodSignature(_http._WebSocketConsumer, () => dart.global.Object.setPrototypeOf({
    [_onListen]: T$.VoidTovoid(),
    [_onPause$]: T$.VoidTovoid(),
    [_onResume$]: T$.VoidTovoid(),
    [_cancel$]: T$.VoidTovoid(),
    [_ensureController]: T$14.VoidToStreamController(),
    [_done]: T$14.ObjectNAndStackTraceNTobool(),
    addStream: T$.ObjectNToFuture(),
    close: T$.VoidToFuture(),
    add: T$.dynamicTovoid(),
    closeSocket: T$.VoidTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._WebSocketConsumer))));
  dart.setLibraryUri(_http._WebSocketConsumer, I[416]);
  dart.setFieldSignature(_http._WebSocketConsumer, () => dart.global.Object.setPrototypeOf({
    webSocket: {type: T$14._WebSocketImpl(), isConst: false, isFinal: true, libraryUri: I[416]},
    socket: {type: T$3.Socket(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_controller$0]: {type: T$14.StreamControllerN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_subscription$0]: {type: T$13.StreamSubscriptionN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_issuedPause]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closed$]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closeCompleter$]: {type: T$2.Completer(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_completer]: {type: T$0.CompleterN(), isConst: false, isFinal: false, libraryUri: I[39]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._WebSocketConsumer))));
  var protocol$ = dart.privateName(_http, "_WebSocketImpl.protocol");
  var ___WebSocketImpl__sink = dart.privateName(_http, "_#_WebSocketImpl#_sink");
  var ___WebSocketImpl__sink_isSet = dart.privateName(_http, "_#_WebSocketImpl#_sink#isSet");
  var _readyState = dart.privateName(_http, "_readyState");
  var _writeClosed = dart.privateName(_http, "_writeClosed");
  var _closeCode = dart.privateName(_http, "_closeCode");
  var _closeReason = dart.privateName(_http, "_closeReason");
  var _pingInterval = dart.privateName(_http, "_pingInterval");
  var _pingTimer = dart.privateName(_http, "_pingTimer");
  var ___WebSocketImpl__consumer = dart.privateName(_http, "_#_WebSocketImpl#_consumer");
  var ___WebSocketImpl__consumer_isSet = dart.privateName(_http, "_#_WebSocketImpl#_consumer#isSet");
  var _closeTimer = dart.privateName(_http, "_closeTimer");
  var _consumer = dart.privateName(_http, "_consumer");
  var _sink = dart.privateName(_http, "_sink");
  var _close$0 = dart.privateName(_http, "_close");
  const Stream__ServiceObject$36$ = class Stream__ServiceObject extends async.Stream {};
  (Stream__ServiceObject$36$.new = function() {
    _http._ServiceObject[dart.mixinNew].call(this);
    dart.global.Object.getPrototypeOf(Stream__ServiceObject$36$).new.call(this);
  }).prototype = Stream__ServiceObject$36$.prototype;
  dart.applyMixin(Stream__ServiceObject$36$, _http._ServiceObject);
  _http._WebSocketImpl = class _WebSocketImpl extends Stream__ServiceObject$36$ {
    get protocol() {
      return this[protocol$];
    }
    set protocol(value) {
      super.protocol = value;
    }
    get [_sink]() {
      let t$361859;
      return dart.test(this[___WebSocketImpl__sink_isSet]) ? (t$361859 = this[___WebSocketImpl__sink], t$361859) : dart.throw(new _internal.LateError.fieldNI("_sink"));
    }
    set [_sink](_sink$35param) {
      if (_sink$35param == null) dart.nullFailed(I[425], 975, 19, "_sink#param");
      this[___WebSocketImpl__sink_isSet] = true;
      this[___WebSocketImpl__sink] = _sink$35param;
    }
    get [_consumer]() {
      let t$361859;
      return dart.test(this[___WebSocketImpl__consumer_isSet]) ? (t$361859 = this[___WebSocketImpl__consumer], t$361859) : dart.throw(new _internal.LateError.fieldNI("_consumer"));
    }
    set [_consumer](_consumer$35param) {
      if (_consumer$35param == null) dart.nullFailed(I[425], 985, 27, "_consumer#param");
      this[___WebSocketImpl__consumer_isSet] = true;
      this[___WebSocketImpl__consumer] = _consumer$35param;
    }
    static connect(url, protocols, headers, opts) {
      let t$361859;
      if (url == null) dart.nullFailed(I[425], 995, 14, "url");
      let compression = opts && 'compression' in opts ? opts.compression : C[1263] || CT.C1263;
      if (compression == null) dart.nullFailed(I[425], 996, 27, "compression");
      let customClient = opts && 'customClient' in opts ? opts.customClient : null;
      let uri = core.Uri.parse(url);
      if (!dart.test(uri.isScheme("ws")) && !dart.test(uri.isScheme("wss"))) {
        dart.throw(new _http.WebSocketException.new("Unsupported URL scheme '" + dart.str(uri.scheme) + "'"));
      }
      let random = math.Random.new();
      let nonceData = _native_typed_data.NativeUint8List.new(16);
      for (let i = 0; i < 16; i = i + 1) {
        nonceData[$_set](i, random.nextInt(256));
      }
      let nonce = convert.base64Encode(nonceData);
      let callerStackTrace = core.StackTrace.current;
      uri = core._Uri.new({scheme: dart.test(uri.isScheme("wss")) ? "https" : "http", userInfo: uri.userInfo, host: uri.host, port: uri.port, path: uri.path, query: uri.query, fragment: uri.fragment});
      return (t$361859 = customClient, t$361859 == null ? _http._WebSocketImpl._httpClient : t$361859).openUrl("GET", uri).then(T$13.HttpClientResponse(), dart.fn(request => {
        let t$361859;
        if (request == null) dart.nullFailed(I[425], 1021, 68, "request");
        if (uri.userInfo != null && uri.userInfo[$isNotEmpty]) {
          let auth = convert.base64Encode(convert.utf8.encode(uri.userInfo));
          request.headers.set("authorization", "Basic " + dart.str(auth));
        }
        if (headers != null) {
          headers[$forEach](dart.fn((field, value) => {
            if (field == null) dart.nullFailed(I[425], 1029, 26, "field");
            return request.headers.add(field, T$.Object()[_as](value));
          }, T$2.StringAnddynamicTovoid()));
        }
        t$361859 = request.headers;
        (() => {
          t$361859.set("connection", "Upgrade");
          t$361859.set("upgrade", "websocket");
          t$361859.set("Sec-WebSocket-Key", nonce);
          t$361859.set("Cache-Control", "no-cache");
          t$361859.set("Sec-WebSocket-Version", "13");
          return t$361859;
        })();
        if (protocols != null) {
          request.headers.add("Sec-WebSocket-Protocol", protocols[$toList]());
        }
        if (dart.test(compression.enabled)) {
          request.headers.add("Sec-WebSocket-Extensions", compression[_createHeader]());
        }
        return request.close();
      }, T$14.HttpClientRequestToFutureOfHttpClientResponse())).then(T$14.WebSocket(), dart.fn(response => {
        if (response == null) dart.nullFailed(I[425], 1048, 14, "response");
        function error(message) {
          if (message == null) dart.nullFailed(I[425], 1049, 38, "message");
          response.detachSocket().then(T$.Null(), dart.fn(socket => {
            if (socket == null) dart.nullFailed(I[425], 1051, 39, "socket");
            socket.destroy();
          }, T$13.SocketToNull()));
          return G$.FutureOfWebSocket().error(new _http.WebSocketException.new(message), callerStackTrace);
        }
        dart.fn(error, T$14.StringToFutureOfWebSocket());
        let connectionHeader = response.headers._get("connection");
        if (response.statusCode !== 101 || connectionHeader == null || !dart.test(connectionHeader[$any](dart.fn(value => {
          if (value == null) dart.nullFailed(I[425], 1061, 34, "value");
          return value[$toLowerCase]() === "upgrade";
        }, T$.StringTobool()))) || dart.nullCheck(response.headers.value("upgrade"))[$toLowerCase]() !== "websocket") {
          return error("Connection to '" + dart.str(uri) + "' was not upgraded to websocket");
        }
        let accept = response.headers.value("Sec-WebSocket-Accept");
        if (accept == null) {
          return error("Response did not contain a 'Sec-WebSocket-Accept' header");
        }
        let sha1 = new _http._SHA1.new();
        sha1.add((dart.str(nonce) + dart.str(_http._webSocketGUID))[$codeUnits]);
        let expectedAccept = sha1.close();
        let receivedAccept = convert.base64Decode(accept);
        if (expectedAccept[$length] != receivedAccept[$length]) {
          return error("Response header 'Sec-WebSocket-Accept' is the wrong length");
        }
        for (let i = 0; i < dart.notNull(expectedAccept[$length]); i = i + 1) {
          if (expectedAccept[$_get](i) != receivedAccept[$_get](i)) {
            return error("Bad response 'Sec-WebSocket-Accept' header");
          }
        }
        let protocol = response.headers.value("Sec-WebSocket-Protocol");
        let deflate = _http._WebSocketImpl.negotiateClientCompression(response, compression);
        return response.detachSocket().then(T$14.WebSocket(), dart.fn(socket => {
          if (socket == null) dart.nullFailed(I[425], 1089, 55, "socket");
          return new _http._WebSocketImpl._fromSocket(socket, protocol, compression, false, deflate);
        }, T$14.SocketTo_WebSocketImpl()));
      }, T$14.HttpClientResponseToFutureOfWebSocket()));
    }
    static negotiateClientCompression(response, compression) {
      let t$361859;
      if (response == null) dart.nullFailed(I[425], 1096, 26, "response");
      if (compression == null) dart.nullFailed(I[425], 1096, 55, "compression");
      let extensionHeader = (t$361859 = response.headers.value("Sec-WebSocket-Extensions"), t$361859 == null ? "" : t$361859);
      let hv = _http.HeaderValue.parse(extensionHeader, {valueSeparator: ","});
      if (dart.test(compression.enabled) && hv.value === "permessage-deflate") {
        let serverNoContextTakeover = hv.parameters[$containsKey]("server_no_context_takeover");
        let clientNoContextTakeover = hv.parameters[$containsKey]("client_no_context_takeover");
        function getWindowBits(type) {
          let t$361859;
          if (type == null) dart.nullFailed(I[425], 1108, 32, "type");
          let o = hv.parameters[$_get](type);
          if (o == null) {
            return 15;
          }
          t$361859 = core.int.tryParse(o);
          return t$361859 == null ? 15 : t$361859;
        }
        dart.fn(getWindowBits, T$2.StringToint());
        return new _http._WebSocketPerMessageDeflate.new({clientMaxWindowBits: getWindowBits("client_max_window_bits"), serverMaxWindowBits: getWindowBits("server_max_window_bits"), clientNoContextTakeover: clientNoContextTakeover, serverNoContextTakeover: serverNoContextTakeover});
      }
      return null;
    }
    static ['_#_fromSocket#tearOff'](_socket, protocol, compression, _serverSide = false, deflate = null) {
      if (_socket == null) dart.nullFailed(I[425], 1128, 12, "_socket");
      if (compression == null) dart.nullFailed(I[425], 1128, 55, "compression");
      if (_serverSide == null) dart.nullFailed(I[425], 1129, 13, "_serverSide");
      return new _http._WebSocketImpl._fromSocket(_socket, protocol, compression, _serverSide, deflate);
    }
    listen(onData, opts) {
      let onError = opts && 'onError' in opts ? opts.onError : null;
      let onDone = opts && 'onDone' in opts ? opts.onDone : null;
      let cancelOnError = opts && 'cancelOnError' in opts ? opts.cancelOnError : null;
      return this[_controller$0].stream.listen(onData, {onError: onError, onDone: onDone, cancelOnError: cancelOnError});
    }
    get pingInterval() {
      return this[_pingInterval];
    }
    set pingInterval(interval) {
      let t$361859;
      if (dart.test(this[_writeClosed])) return;
      t$361859 = this[_pingTimer];
      t$361859 == null ? null : t$361859.cancel();
      this[_pingInterval] = interval;
      if (interval == null) return;
      this[_pingTimer] = async.Timer.new(interval, dart.fn(() => {
        if (dart.test(this[_writeClosed])) return;
        this[_consumer].add(new _http._WebSocketPing.new());
        this[_pingTimer] = async.Timer.new(interval, dart.fn(() => {
          let t$361859;
          t$361859 = this[_closeTimer];
          t$361859 == null ? null : t$361859.cancel();
          this[_close$0](1001);
          this[_closeCode] = this[_outCloseCode];
          this[_closeReason] = this[_outCloseReason];
          this[_controller$0].close();
        }, T$.VoidTovoid()));
      }, T$.VoidTovoid()));
    }
    get readyState() {
      return this[_readyState];
    }
    get extensions() {
      return "";
    }
    get closeCode() {
      return this[_closeCode];
    }
    get closeReason() {
      return this[_closeReason];
    }
    add(data) {
      this[_sink].add(data);
    }
    addUtf8Text(bytes) {
      if (bytes == null) dart.nullFailed(I[425], 1225, 30, "bytes");
      core.ArgumentError.checkNotNull(T$.ListOfint(), bytes, "bytes");
      this[_sink].add(new _http._EncodedString.new(bytes));
    }
    addError(error, stackTrace = null) {
      if (error == null) dart.nullFailed(I[425], 1231, 24, "error");
      this[_sink].addError(error, stackTrace);
    }
    addStream(stream) {
      T$3.Stream()[_as](stream);
      if (stream == null) dart.nullFailed(I[425], 1235, 27, "stream");
      return this[_sink].addStream(stream);
    }
    get done() {
      return this[_sink].done;
    }
    close(code = null, reason = null) {
      if (dart.test(_http._WebSocketImpl._isReservedStatusCode(code))) {
        dart.throw(new _http.WebSocketException.new("Reserved status code " + dart.str(code)));
      }
      if (this[_outCloseCode] == null) {
        this[_outCloseCode] = code;
        this[_outCloseReason] = reason;
      }
      if (!dart.test(this[_controller$0].isClosed)) {
        if (!dart.test(this[_controller$0].hasListener) && this[_subscription$0] != null) {
          this[_controller$0].stream.drain(T$.dynamic()).catchError(dart.fn(_ => {
          }, T$0.dynamicToNull()));
        }
        this[_closeTimer] == null ? this[_closeTimer] = async.Timer.new(C[1266] || CT.C1266, dart.fn(() => {
          let t$361859;
          this[_closeCode] = this[_outCloseCode];
          this[_closeReason] = this[_outCloseReason];
          t$361859 = this[_subscription$0];
          t$361859 == null ? null : t$361859.cancel();
          this[_controller$0].close();
          _http._WebSocketImpl._webSockets[$remove](this[_serviceId$]);
        }, T$.VoidTovoid())) : null;
      }
      return this[_sink].close();
    }
    static get userAgent() {
      return _http._WebSocketImpl._httpClient.userAgent;
    }
    static set userAgent(userAgent) {
      _http._WebSocketImpl._httpClient.userAgent = userAgent;
    }
    [_close$0](code = null, reason = null) {
      let t$361859;
      if (dart.test(this[_writeClosed])) return;
      if (this[_outCloseCode] == null) {
        this[_outCloseCode] = code;
        this[_outCloseReason] = reason;
      }
      t$361859 = this[_pingTimer];
      t$361859 == null ? null : t$361859.cancel();
      this[_writeClosed] = true;
      this[_consumer].closeSocket();
      _http._WebSocketImpl._webSockets[$remove](this[_serviceId$]);
    }
    get [_serviceTypePath$]() {
      return "io/websockets";
    }
    get [_serviceTypeName$]() {
      return "WebSocket";
    }
    static _isReservedStatusCode(code) {
      return code != null && (dart.notNull(code) < 1000 || code === 1004 || code === 1005 || code === 1006 || dart.notNull(code) > 1011 && dart.notNull(code) < 1015 || dart.notNull(code) >= 1015 && dart.notNull(code) < 3000);
    }
  };
  (_http._WebSocketImpl._fromSocket = function(_socket, protocol, compression, _serverSide = false, deflate = null) {
    let t$361859;
    if (_socket == null) dart.nullFailed(I[425], 1128, 12, "_socket");
    if (compression == null) dart.nullFailed(I[425], 1128, 55, "compression");
    if (_serverSide == null) dart.nullFailed(I[425], 1129, 13, "_serverSide");
    this[_subscription$0] = null;
    this[___WebSocketImpl__sink] = null;
    this[___WebSocketImpl__sink_isSet] = false;
    this[_readyState] = 0;
    this[_writeClosed] = false;
    this[_closeCode] = null;
    this[_closeReason] = null;
    this[_pingInterval] = null;
    this[_pingTimer] = null;
    this[___WebSocketImpl__consumer] = null;
    this[___WebSocketImpl__consumer_isSet] = false;
    this[_outCloseCode] = null;
    this[_outCloseReason] = null;
    this[_closeTimer] = null;
    this[_deflate$] = null;
    this[_socket$0] = _socket;
    this[protocol$] = protocol;
    this[_serverSide$] = _serverSide;
    this[_controller$0] = async.StreamController.new({sync: true});
    this.$ti = this.$ti || T$14._WebSocketImpl();
    dart.global.Object.getPrototypeOf(_http._WebSocketImpl).new.call(this);
    this[_consumer] = new _http._WebSocketConsumer.new(this, this[_socket$0]);
    this[_sink] = new _http._StreamSinkImpl.new(this[_consumer]);
    this[_readyState] = 1;
    this[_deflate$] = deflate;
    let transformer = new _http._WebSocketProtocolTransformer.new(this[_serverSide$], deflate);
    let subscription = this[_subscription$0] = transformer.bind(this[_socket$0]).listen(dart.fn(data => {
      if (T$14._WebSocketPing()[_is](data)) {
        if (!dart.test(this[_writeClosed])) this[_consumer].add(new _http._WebSocketPong.new(data.payload));
      } else if (T$14._WebSocketPong()[_is](data)) {
        this.pingInterval = this[_pingInterval];
      } else {
        this[_controller$0].add(data);
      }
    }, T$.dynamicTovoid()), {onError: dart.fn((error, stackTrace) => {
        let t$361859;
        if (error == null) dart.nullFailed(I[425], 1146, 25, "error");
        if (stackTrace == null) dart.nullFailed(I[425], 1146, 43, "stackTrace");
        t$361859 = this[_closeTimer];
        t$361859 == null ? null : t$361859.cancel();
        if (T$8.FormatException()[_is](error)) {
          this[_close$0](1007);
        } else {
          this[_close$0](1002);
        }
        this[_closeCode] = this[_outCloseCode];
        this[_closeReason] = this[_outCloseReason];
        this[_controller$0].close();
      }, T$.ObjectAndStackTraceToNull()), onDone: dart.fn(() => {
        let t$361859;
        t$361859 = this[_closeTimer];
        t$361859 == null ? null : t$361859.cancel();
        if (this[_readyState] === 1) {
          this[_readyState] = 2;
          if (!dart.test(_http._WebSocketImpl._isReservedStatusCode(transformer.closeCode))) {
            this[_close$0](transformer.closeCode, transformer.closeReason);
          } else {
            this[_close$0]();
          }
          this[_readyState] = 3;
        }
        this[_closeCode] = transformer.closeCode;
        this[_closeReason] = transformer.closeReason;
        this[_controller$0].close();
      }, T$.VoidTovoid()), cancelOnError: true});
    subscription.pause();
    t$361859 = this[_controller$0];
    (() => {
      t$361859.onListen = dart.bind(subscription, 'resume');
      t$361859.onCancel = dart.fn(() => {
        dart.nullCheck(this[_subscription$0]).cancel();
        this[_subscription$0] = null;
      }, T$0.VoidToNull());
      t$361859.onPause = dart.bind(subscription, 'pause');
      t$361859.onResume = dart.bind(subscription, 'resume');
      return t$361859;
    })();
    _http._WebSocketImpl._webSockets[$_set](this[_serviceId$], this);
  }).prototype = _http._WebSocketImpl.prototype;
  dart.addRtiResources(_http._WebSocketImpl, ["_http|_WebSocketImpl", "_http|WebSocket", "async|Stream", "async|StreamSink", "async|EventSink", "async|StreamConsumer", "core|Sink"]);
  dart.setMethodSignature(_http._WebSocketImpl, () => dart.global.Object.setPrototypeOf({
    listen: T$3.Fn__ToStreamSubscription(),
    add: T$.ObjectNTovoid(),
    addUtf8Text: T$.ListOfintTovoid(),
    addError: T$1.ObjectAndStackTraceNTovoid(),
    addStream: T$.ObjectNToFuture(),
    close: T$14.intNAndStringNToFuture(),
    [_close$0]: T$6.intNAndStringNTovoid()
  }, dart.getMethods(dart.global.Object.getPrototypeOf(_http._WebSocketImpl))));
  dart.setStaticMethodSignature(_http._WebSocketImpl, () => ['connect', 'negotiateClientCompression', '_isReservedStatusCode']);
  dart.setGetterSignature(_http._WebSocketImpl, () => dart.global.Object.setPrototypeOf({
    [_sink]: T$14.StreamSink(),
    [_consumer]: T$14._WebSocketConsumer(),
    pingInterval: T$1.DurationN(),
    readyState: T$.int(),
    extensions: T$.String(),
    closeCode: T$.intN(),
    closeReason: T$.StringN(),
    done: T$0.Future(),
    [_serviceTypePath$]: T$.String(),
    [_serviceTypeName$]: T$.String()
  }, dart.getGetters(dart.global.Object.getPrototypeOf(_http._WebSocketImpl))));
  dart.setSetterSignature(_http._WebSocketImpl, () => dart.global.Object.setPrototypeOf({
    [_sink]: T$14.StreamSink(),
    [_consumer]: T$14._WebSocketConsumer(),
    pingInterval: T$1.DurationN()
  }, dart.getSetters(dart.global.Object.getPrototypeOf(_http._WebSocketImpl))));
  dart.setStaticGetterSignature(_http._WebSocketImpl, () => ['userAgent']);
  dart.setStaticSetterSignature(_http._WebSocketImpl, () => ['userAgent']);
  dart.setLibraryUri(_http._WebSocketImpl, I[416]);
  dart.setFieldSignature(_http._WebSocketImpl, () => dart.global.Object.setPrototypeOf({
    protocol: {type: T$.StringN(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_controller$0]: {type: T$1.StreamController(), isConst: false, isFinal: true, libraryUri: I[39]},
    [_subscription$0]: {type: T$13.StreamSubscriptionN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [___WebSocketImpl__sink]: {type: T$14.StreamSinkN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [___WebSocketImpl__sink_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_socket$0]: {type: T$3.Socket(), isConst: false, isFinal: true, libraryUri: I[119]},
    [_serverSide$]: {type: T$.bool(), isConst: false, isFinal: true, libraryUri: I[11]},
    [_readyState]: {type: T$.int(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_writeClosed]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closeCode]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closeReason]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pingInterval]: {type: T$1.DurationN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_pingTimer]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [___WebSocketImpl__consumer]: {type: T$14._WebSocketConsumerN(), isConst: false, isFinal: false, libraryUri: I[416]},
    [___WebSocketImpl__consumer_isSet]: {type: T$.bool(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_outCloseCode]: {type: T$.intN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_outCloseReason]: {type: T$.StringN(), isConst: false, isFinal: false, libraryUri: I[11]},
    [_closeTimer]: {type: T$9.TimerN(), isConst: false, isFinal: false, libraryUri: I[39]},
    [_deflate$]: {type: T$14._WebSocketPerMessageDeflateN(), isConst: false, isFinal: false, libraryUri: I[416]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_http._WebSocketImpl))));
  dart.setStaticFieldSignature(_http._WebSocketImpl, () => ['_webSockets', 'DEFAULT_WINDOW_BITS', 'PER_MESSAGE_DEFLATE', '_httpClient']);
  dart.defineLazy(_http._WebSocketImpl, {
    /*_http._WebSocketImpl._webSockets*/get _webSockets() {
      return new (G$.IdentityMapOfint$_WebSocketImpl()).new();
    },
    /*_http._WebSocketImpl.DEFAULT_WINDOW_BITS*/get DEFAULT_WINDOW_BITS() {
      return 15;
    },
    /*_http._WebSocketImpl.PER_MESSAGE_DEFLATE*/get PER_MESSAGE_DEFLATE() {
      return "permessage-deflate";
    },
    /*_http._WebSocketImpl._httpClient*/get _httpClient() {
      return _http.HttpClient.new();
    }
  }, false);
  _http._getHttpVersion = function _getHttpVersion() {
    let version = io.Platform.version;
    let index = version[$indexOf](".", version[$indexOf](".") + 1);
    version = version[$substring](0, index);
    return "Dart/" + dart.str(version) + " (dart:io)";
  };
  _http['Testing$HttpDate|test$_parseCookieDate'] = function Testing$36HttpDate$124test$36_parseCookieDate(date) {
    if (date == null) dart.nullFailed(I[426], 46, 48, "date");
    return _http.HttpDate._parseCookieDate(date);
  };
  _http['Testing$_HttpHeaders|test$_build'] = function Testing$36_HttpHeaders$124test$36_build($this, builder) {
    if ($this == null) dart.nullFailed(I[426], 51, 8, "#this");
    if (builder == null) dart.nullFailed(I[426], 51, 33, "builder");
    return $this[_build](builder);
  };
  _http['Testing$_HttpHeaders|get#test$_build'] = function Testing$36_HttpHeaders$124get$35test$36_build($this) {
    if ($this == null) dart.nullFailed(I[426], 51, 8, "#this");
    return dart.fn(builder => {
      if (builder == null) dart.nullFailed(I[426], 51, 33, "builder");
      return _http['Testing$_HttpHeaders|test$_build']($this, builder);
    }, T$14.BytesBuilderTovoid());
  };
  _http['Testing$_HttpHeaders|test$_parseCookies'] = function Testing$36_HttpHeaders$124test$36_parseCookies($this) {
    if ($this == null) dart.nullFailed(I[426], 52, 16, "#this");
    return $this[_parseCookies]();
  };
  _http['Testing$_HttpHeaders|get#test$_parseCookies'] = function Testing$36_HttpHeaders$124get$35test$36_parseCookies($this) {
    if ($this == null) dart.nullFailed(I[426], 52, 16, "#this");
    return dart.fn(() => _http['Testing$_HttpHeaders|test$_parseCookies']($this), T$13.VoidToListOfCookie());
  };
  _http['Testing$_WebSocketProtocolTransformer|get#test$_state'] = function Testing$36_WebSocketProtocolTransformer$124get$35test$36_state($this) {
    if ($this == null) dart.nullFailed(I[426], 57, 11, "#this");
    return $this[_state$1];
  };
  _http['Testing$_WebSocketImpl|connect'] = function Testing$36_WebSocketImpl$124connect(url, protocols, headers, opts) {
    if (url == null) dart.nullFailed(I[426], 61, 43, "url");
    let compression = opts && 'compression' in opts ? opts.compression : C[1263] || CT.C1263;
    if (compression == null) dart.nullFailed(I[426], 63, 31, "compression");
    let customClient = opts && 'customClient' in opts ? opts.customClient : null;
    return _http._WebSocketImpl.connect(url, protocols, headers, {compression: compression, customClient: customClient});
  };
  _http['Testing$_WebSocketImpl|get#test$_pingTimer'] = function Testing$36_WebSocketImpl$124get$35test$36_pingTimer($this) {
    if ($this == null) dart.nullFailed(I[426], 68, 14, "#this");
    return $this[_pingTimer];
  };
  dart.defineLazy(_http, {
    /*_http._MASK_8*/get _MASK_8() {
      return 255;
    },
    /*_http._MASK_32*/get _MASK_32() {
      return 4294967295.0;
    },
    /*_http._BITS_PER_BYTE*/get _BITS_PER_BYTE() {
      return 8;
    },
    /*_http._BYTES_PER_WORD*/get _BYTES_PER_WORD() {
      return 4;
    },
    /*_http._httpConnectionHook*/get _httpConnectionHook() {
      return dart.fn(_ => {
        if (_ == null) dart.nullFailed(I[427], 21, 43, "_");
      }, T$14.UriTovoid());
    },
    set _httpConnectionHook(value) {
      if (value == null) dart.nullFailed(I[427], 21, 20, "_httpConnectionHook");
    },
    /*_http._digitsValidator*/get _digitsValidator() {
      return core.RegExp.new("^\\d+$");
    },
    /*_http._nextServiceId*/get _nextServiceId() {
      return 1;
    },
    set _nextServiceId(value) {
      if (value == null) dart.nullFailed(I[420], 290, 5, "_nextServiceId");
    },
    /*_http._OUTGOING_BUFFER_SIZE*/get _OUTGOING_BUFFER_SIZE() {
      return 8192;
    },
    /*_http._DART_SESSION_ID*/get _DART_SESSION_ID() {
      return "DARTSESSID";
    },
    /*_http._httpOverridesToken*/get _httpOverridesToken() {
      return new core.Object.new();
    },
    /*_http._webSocketGUID*/get _webSocketGUID() {
      return "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
    },
    /*_http._clientNoContextTakeover*/get _clientNoContextTakeover() {
      return "client_no_context_takeover";
    },
    /*_http._serverNoContextTakeover*/get _serverNoContextTakeover() {
      return "server_no_context_takeover";
    },
    /*_http._clientMaxWindowBits*/get _clientMaxWindowBits() {
      return "client_max_window_bits";
    },
    /*_http._serverMaxWindowBits*/get _serverMaxWindowBits() {
      return "server_max_window_bits";
    }
  }, false);
  var fontFamily$3 = dart.privateName(_web_test_fonts, "EmbeddedTestFont.fontFamily");
  var data$3 = dart.privateName(_web_test_fonts, "EmbeddedTestFont.data");
  _web_test_fonts.EmbeddedTestFont = class EmbeddedTestFont extends core.Object {
    get fontFamily() {
      return this[fontFamily$3];
    }
    set fontFamily(value) {
      super.fontFamily = value;
    }
    get data() {
      return this[data$3];
    }
    set data(value) {
      super.data = value;
    }
    static ['_#_#tearOff'](opts) {
      let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
      if (fontFamily == null) dart.nullFailed(I[428], 9, 21, "fontFamily");
      let data = opts && 'data' in opts ? opts.data : null;
      if (data == null) dart.nullFailed(I[428], 10, 21, "data");
      return new _web_test_fonts.EmbeddedTestFont.__({fontFamily: fontFamily, data: data});
    }
  };
  (_web_test_fonts.EmbeddedTestFont.__ = function(opts) {
    let fontFamily = opts && 'fontFamily' in opts ? opts.fontFamily : null;
    if (fontFamily == null) dart.nullFailed(I[428], 9, 21, "fontFamily");
    let data = opts && 'data' in opts ? opts.data : null;
    if (data == null) dart.nullFailed(I[428], 10, 21, "data");
    this[fontFamily$3] = fontFamily;
    this[data$3] = data;
    ;
  }).prototype = _web_test_fonts.EmbeddedTestFont.prototype;
  dart.addRtiResources(_web_test_fonts.EmbeddedTestFont, ["_web_test_fonts|EmbeddedTestFont"]);
  dart.setLibraryUri(_web_test_fonts.EmbeddedTestFont, I[429]);
  dart.setFieldSignature(_web_test_fonts.EmbeddedTestFont, () => dart.global.Object.setPrototypeOf({
    fontFamily: {type: T$.String(), isConst: false, isFinal: true, libraryUri: I[11]},
    data: {type: T$.Uint8List(), isConst: false, isFinal: true, libraryUri: I[43]}
  }, dart.getFields(dart.global.Object.getPrototypeOf(_web_test_fonts.EmbeddedTestFont))));
  dart.setStaticFieldSignature(_web_test_fonts.EmbeddedTestFont, () => ['flutterTest']);
  dart.defineLazy(_web_test_fonts.EmbeddedTestFont, {
    /*_web_test_fonts.EmbeddedTestFont.flutterTest*/get flutterTest() {
      return new _web_test_fonts.EmbeddedTestFont.__({fontFamily: "FlutterTest", data: _web_test_fonts._flutterTestData});
    }
  }, false);
  dart.defineLazy(_web_test_fonts, {
    /*_web_test_fonts._flutterTestData*/get _flutterTestData() {
      return _native_typed_data.NativeUint8List.fromList(G.JSArrayOfint().of([0, 1, 0, 0, 0, 14, 0, 128, 0, 3, 0, 96, 66, 65, 83, 69, 138, 75, 135, 1, 0, 0, 11, 36, 0, 0, 0, 130, 71, 68, 69, 70, 0, 41, 0, 20, 0, 0, 11, 4, 0, 0, 0, 30, 79, 83, 47, 50, 19, 253, 144, 242, 0, 0, 1, 104, 0, 0, 0, 96, 99, 109, 97, 112, 236, 17, 6, 15, 0, 0, 2, 0, 0, 0, 5, 4, 99, 118, 116, 32, 0, 0, 0, 0, 0, 0, 7, 24, 0, 0, 0, 2, 103, 108, 121, 102, 9, 133, 137, 248, 0, 0, 7, 60, 0, 0, 0, 216, 104, 101, 97, 100, 129, 27, 239, 253, 0, 0, 0, 236, 0, 0, 0, 54, 104, 104, 101, 97, 7, 2, 3, 15, 0, 0, 1, 36, 0, 0, 0, 36, 104, 109, 116, 120, 27, 134, 0, 128, 0, 0, 1, 200, 0, 0, 0, 56, 108, 111, 99, 97, 2, 126, 2, 80, 0, 0, 7, 28, 0, 0, 0, 30, 109, 97, 120, 112, 0, 82, 0, 45, 0, 0, 1, 72, 0, 0, 0, 32, 110, 97, 109, 101, 26, 239, 122, 91, 0, 0, 8, 20, 0, 0, 2, 37, 112, 111, 115, 116, 137, 132, 40, 55, 0, 0, 10, 60, 0, 0, 0, 199, 112, 114, 101, 112, 111, 72, 104, 37, 0, 0, 7, 4, 0, 0, 0, 17, 0, 1, 0, 0, 0, 1, 0, 0, 171, 180, 145, 21, 95, 15, 60, 245, 0, 31, 4, 0, 0, 0, 0, 0, 142, 244, 86, 128, 0, 0, 0, 0, 142, 244, 86, 128, 0, 0, 255, 0, 4, 0, 3, 0, 0, 0, 0, 8, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 3, 0, 255, 0, 0, 0, 4, 0, 0, 0, 0, 0, 4, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 0, 1, 0, 0, 0, 14, 0, 8, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 0, 1, 0, 1, 0, 0, 0, 64, 0, 34, 0, 0, 0, 0, 0, 4, 2, 5, 1, 144, 0, 5, 0, 0, 2, 153, 2, 204, 0, 0, 0, 143, 2, 153, 2, 204, 0, 0, 1, 235, 0, 51, 1, 9, 0, 0, 2, 0, 5, 3, 0, 0, 0, 0, 0, 0, 128, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 32, 254, 255, 3, 0, 255, 0, 0, 0, 3, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 3, 0, 3, 0, 0, 0, 0, 32, 0, 1, 4, 0, 0, 128, 0, 0, 0, 0, 1, 85, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 4, 0, 0, 0, 2, 0, 0, 0, 1, 85, 0, 0, 1, 0, 0, 0, 0, 170, 0, 0, 0, 204, 0, 0, 0, 102, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 28, 0, 1, 0, 0, 0, 0, 3, 254, 0, 3, 0, 1, 0, 0, 0, 28, 0, 4, 3, 226, 0, 0, 0, 100, 0, 64, 0, 5, 0, 36, 0, 126, 0, 255, 1, 49, 1, 83, 1, 120, 1, 146, 2, 201, 2, 221, 3, 148, 3, 169, 3, 192, 32, 10, 32, 38, 32, 48, 32, 58, 32, 68, 33, 38, 34, 6, 34, 18, 34, 30, 34, 43, 34, 72, 34, 101, 34, 242, 37, 202, 48, 7, 78, 3, 78, 9, 78, 45, 78, 93, 78, 140, 78, 148, 81, 109, 83, 65, 84, 38, 86, 219, 87, 31, 101, 135, 102, 47, 103, 44, 107, 99, 108, 52, 109, 75, 112, 107, 120, 110, 139, 213, 145, 209, 240, 2, 254, 255, 255, 255, 0, 0, 0, 32, 0, 161, 1, 49, 1, 82, 1, 120, 1, 146, 2, 198, 2, 216, 3, 148, 3, 165, 3, 188, 32, 2, 32, 19, 32, 48, 32, 57, 32, 68, 33, 34, 34, 2, 34, 15, 34, 25, 34, 43, 34, 72, 34, 96, 34, 242, 37, 202, 48, 7, 78, 0, 78, 9, 78, 45, 78, 93, 78, 140, 78, 148, 81, 107, 83, 65, 84, 38, 86, 215, 87, 31, 101, 135, 102, 47, 103, 40, 107, 99, 108, 52, 109, 75, 112, 107, 120, 110, 139, 213, 145, 209, 240, 0, 254, 255, 255, 255, 0, 0, 0, 0, 254, 210, 0, 0, 254, 139, 254, 113, 0, 0, 0, 0, 252, 111, 0, 0, 0, 0, 0, 0, 0, 0, 223, 211, 0, 0, 223, 191, 0, 0, 0, 0, 0, 0, 0, 0, 221, 216, 221, 187, 0, 0, 221, 17, 218, 57, 207, 252, 0, 0, 177, 250, 177, 214, 177, 166, 177, 119, 177, 111, 0, 0, 172, 194, 171, 221, 0, 0, 168, 228, 154, 124, 153, 212, 0, 0, 148, 160, 147, 207, 146, 184, 143, 152, 135, 149, 116, 46, 110, 50, 0, 0, 1, 14, 0, 1, 0, 100, 1, 32, 0, 0, 1, 218, 0, 0, 0, 0, 1, 216, 1, 222, 0, 0, 1, 230, 1, 238, 1, 246, 2, 6, 0, 0, 2, 42, 0, 0, 2, 42, 2, 50, 2, 58, 2, 64, 0, 0, 0, 0, 2, 70, 0, 0, 0, 0, 0, 0, 2, 74, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 70, 0, 0, 0, 0, 2, 70, 0, 0, 0, 0, 0, 0, 2, 72, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 66, 0, 0, 0, 0, 0, 6, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 0, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 4, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 5, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 0, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 3, 0, 0, 0, 3, 0, 0, 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 7, 0, 0, 0, 8, 0, 9, 0, 10, 0, 0, 0, 0, 0, 11, 0, 12, 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 3, 0, 3, 0, 0, 0, 3, 0, 3, 0, 3, 0, 0, 0, 3, 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 3, 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 3, 0, 0, 0, 3, 0, 3, 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 3, 0, 3, 0, 0, 0, 0, 0, 3, 0, 3, 0, 0, 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 3, 0, 0, 0, 0, 0, 0, 0, 3, 0, 3, 0, 3, 0, 3, 0, 0, 1, 6, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 6, 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 3, 3, 0, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 24, 184, 0, 0, 76, 184, 0, 192, 99, 184, 0, 4, 98, 32, 103, 97, 68, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 38, 0, 38, 0, 38, 0, 60, 0, 84, 0, 108, 0, 108, 0, 108, 0, 108, 0, 108, 0, 108, 0, 108, 0, 108, 0, 108, 0, 0, 0, 2, 0, 128, 0, 0, 3, 128, 3, 0, 0, 3, 0, 7, 0, 34, 0, 179, 0, 0, 0, 0, 22, 224, 18, 178, 1, 1, 1, 21, 54, 22, 176, 0, 47, 176, 1, 47, 176, 2, 47, 176, 3, 47, 176, 4, 47, 176, 7, 47, 37, 33, 17, 33, 3, 17, 33, 17, 1, 0, 2, 0, 254, 0, 128, 3, 0, 128, 2, 0, 253, 128, 3, 0, 253, 0, 0, 1, 0, 0, 255, 0, 4, 0, 3, 0, 0, 3, 0, 17, 0, 179, 0, 0, 0, 0, 22, 224, 18, 178, 1, 1, 1, 21, 54, 22, 0, 25, 1, 33, 17, 4, 0, 255, 0, 4, 0, 252, 0, 0, 0, 1, 0, 0, 255, 0, 4, 0, 0, 0, 0, 3, 0, 22, 0, 179, 0, 0, 0, 0, 22, 224, 18, 178, 1, 1, 1, 21, 54, 22, 176, 1, 47, 176, 2, 47, 25, 1, 33, 17, 4, 0, 255, 0, 1, 0, 255, 0, 0, 1, 0, 0, 0, 0, 4, 0, 3, 0, 0, 3, 0, 22, 0, 179, 0, 0, 0, 0, 22, 224, 18, 178, 1, 1, 1, 21, 54, 22, 176, 0, 47, 176, 3, 47, 49, 17, 33, 17, 4, 0, 3, 0, 253, 0, 0, 0, 0, 0, 0, 14, 0, 174, 0, 1, 0, 0, 0, 0, 0, 0, 0, 29, 0, 60, 0, 1, 0, 0, 0, 0, 0, 1, 0, 7, 0, 106, 0, 1, 0, 0, 0, 0, 0, 2, 0, 7, 0, 130, 0, 1, 0, 0, 0, 0, 0, 3, 0, 38, 0, 216, 0, 1, 0, 0, 0, 0, 0, 4, 0, 11, 1, 23, 0, 1, 0, 0, 0, 0, 0, 5, 0, 15, 1, 67, 0, 1, 0, 0, 0, 0, 0, 6, 0, 11, 1, 107, 0, 3, 0, 1, 4, 9, 0, 0, 0, 58, 0, 0, 0, 3, 0, 1, 4, 9, 0, 1, 0, 14, 0, 90, 0, 3, 0, 1, 4, 9, 0, 2, 0, 14, 0, 114, 0, 3, 0, 1, 4, 9, 0, 3, 0, 76, 0, 138, 0, 3, 0, 1, 4, 9, 0, 4, 0, 22, 0, 255, 0, 3, 0, 1, 4, 9, 0, 5, 0, 30, 1, 35, 0, 3, 0, 1, 4, 9, 0, 6, 0, 22, 1, 83, 0, 67, 0, 111, 0, 112, 0, 121, 0, 114, 0, 105, 0, 103, 0, 104, 0, 116, 0, 32, 0, 40, 0, 99, 0, 41, 0, 32, 0, 49, 0, 57, 0, 56, 0, 48, 0, 44, 0, 32, 0, 65, 0, 110, 0, 111, 0, 110, 0, 121, 0, 109, 0, 111, 0, 117, 0, 115, 0, 0, 67, 111, 112, 121, 114, 105, 103, 104, 116, 32, 40, 99, 41, 32, 49, 57, 56, 48, 44, 32, 65, 110, 111, 110, 121, 109, 111, 117, 115, 0, 0, 77, 0, 105, 0, 110, 0, 103, 0, 76, 0, 105, 0, 85, 0, 0, 77, 105, 110, 103, 76, 105, 85, 0, 0, 82, 0, 101, 0, 103, 0, 117, 0, 108, 0, 97, 0, 114, 0, 0, 82, 101, 103, 117, 108, 97, 114, 0, 0, 70, 0, 111, 0, 110, 0, 116, 0, 70, 0, 111, 0, 114, 0, 103, 0, 101, 0, 32, 0, 50, 0, 46, 0, 48, 0, 32, 0, 58, 0, 32, 0, 70, 0, 108, 0, 117, 0, 116, 0, 116, 0, 101, 0, 114, 0, 84, 0, 101, 0, 115, 0, 116, 0, 32, 0, 58, 0, 32, 0, 49, 0, 45, 0, 49, 0, 45, 0, 49, 0, 57, 0, 56, 0, 48, 0, 0, 70, 111, 110, 116, 70, 111, 114, 103, 101, 32, 50, 46, 48, 32, 58, 32, 70, 108, 117, 116, 116, 101, 114, 84, 101, 115, 116, 32, 58, 32, 49, 45, 49, 45, 49, 57, 56, 48, 0, 0, 70, 0, 108, 0, 117, 0, 116, 0, 116, 0, 101, 0, 114, 0, 84, 0, 101, 0, 115, 0, 116, 0, 0, 70, 108, 117, 116, 116, 101, 114, 84, 101, 115, 116, 0, 0, 86, 0, 101, 0, 114, 0, 115, 0, 105, 0, 111, 0, 110, 0, 32, 0, 48, 0, 48, 0, 49, 0, 46, 0, 48, 0, 48, 0, 48, 0, 0, 86, 101, 114, 115, 105, 111, 110, 32, 48, 48, 49, 46, 48, 48, 48, 0, 0, 70, 0, 108, 0, 117, 0, 116, 0, 116, 0, 101, 0, 114, 0, 84, 0, 101, 0, 115, 0, 116, 0, 0, 70, 108, 117, 116, 116, 101, 114, 84, 101, 115, 116, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 255, 126, 0, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 0, 0, 0, 1, 0, 2, 1, 2, 1, 3, 1, 4, 1, 5, 1, 6, 1, 7, 1, 8, 1, 9, 1, 10, 1, 11, 1, 12, 6, 83, 113, 117, 97, 114, 101, 14, 65, 115, 99, 101, 110, 116, 32, 70, 108, 117, 115, 104, 101, 100, 15, 68, 101, 115, 99, 101, 110, 116, 32, 70, 108, 117, 115, 104, 101, 100, 12, 70, 117, 108, 108, 32, 65, 100, 118, 97, 110, 99, 101, 11, 49, 47, 50, 32, 65, 100, 118, 97, 110, 99, 101, 11, 49, 47, 51, 32, 65, 100, 118, 97, 110, 99, 101, 11, 49, 47, 52, 32, 65, 100, 118, 97, 110, 99, 101, 11, 49, 47, 54, 32, 65, 100, 118, 97, 110, 99, 101, 11, 49, 47, 53, 32, 65, 100, 118, 97, 110, 99, 101, 12, 49, 47, 49, 48, 32, 65, 100, 118, 97, 110, 99, 101, 12, 90, 101, 114, 111, 32, 65, 100, 118, 97, 110, 99, 101, 0, 0, 1, 0, 0, 0, 12, 0, 0, 0, 22, 0, 0, 0, 2, 0, 1, 0, 3, 0, 13, 0, 1, 0, 4, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 0, 0, 8, 0, 0, 0, 4, 0, 18, 0, 3, 104, 97, 110, 103, 105, 100, 101, 111, 114, 111, 109, 110, 0, 3, 103, 114, 101, 107, 0, 20, 104, 97, 110, 105, 0, 48, 108, 97, 116, 110, 0, 76, 0, 6, 0, 0, 0, 0, 0, 2, 0, 3, 0, 10, 0, 14, 0, 18, 0, 1, 3, 0, 0, 1, 255, 0, 0, 1, 0, 0, 0, 6, 0, 0, 0, 0, 0, 1, 0, 3, 0, 10, 0, 14, 0, 18, 0, 1, 3, 0, 0, 1, 255, 0, 0, 1, 0, 0, 0, 6, 0, 0, 0, 0, 0, 2, 0, 3, 0, 10, 0, 14, 0, 18, 0, 1, 3, 0, 0, 1, 255, 0, 0, 1, 0, 0, 0, 0]));
    }
  }, false);
  dart.moduleConstCaches.set("dart_sdk", C);
  dart_rti._Universe.addRules(dart.typeUniverse, 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omFontFaceSet":[],"_engine|DomVisualViewport":[],"_engine|DomHTMLTextAreaElement":[],"_engine|DomClipboard":[],"_engine|DomUIEvent":[],"_engine|DomKeyboardEvent":[],"_engine|DomHistory":[],"_engine|DomLocation":[],"_engine|DomPopStateEvent":[],"_engine|DomURL":[],"_engine|DomBlob":[],"_engine|DomMutationObserver":[],"_engine|DomMutationRecord":[],"_engine|DomMediaQueryList":[],"_engine|DomMediaQueryListEvent":[],"_engine|DomPath2D":[],"_engine|DomInputEvent":[],"_engine|DomFocusEvent":[],"_engine|DomMouseEvent":[],"_engine|DomPointerEvent":[],"_engine|DomWheelEvent":[],"_engine|DomTouchEvent":[],"_engine|DomTouch":[],"_engine|DomCompositionEvent":[],"_engine|DomHTMLInputElement":[],"_engine|DomTokenList":[],"_engine|DomHTMLFormElement":[],"_engine|DomHTMLLabelElement":[],"_engine|DomOffscreenCanvas":[],"_engine|DomFileReader":[],"_engine|DomDocumentFragment":[],"_engine|DomShadowRoot":[],"_engine|DomStyleSheet":[],"_engine|DomCSSStyleSheet":[],"_engine|DomCSSRule":[],"_engine|DomScreen":[],"_engine|DomScreenOrientation":[],"_engine|DomWebSocket":[],"_engine|DomMessageEvent":[],"_engine|DomMessageEventSource":[],"_engine|DomMessageEventLocation":[],"_engine|DomHTMLIFrameElement":[],"_engine|DomMessagePort":[],"_engine|DomMessageChannel":[],"_engine|DomResizeObserver":[],"_engine|DomResizeObserverObserveOptions":[],"_engine|DomResizeObserverEntry":[],"_engine|DomTrustedTypePolicyFactory":[],"_engine|DomTrustedTypePolicyOptions":[],"_engine|DomTrustedTypePolicy":[],"_engine|DomTrustedScriptURL":[],"_engine|_DomList":[],"_engine|_DomTouchList":[],"_engine|DomSymbol":[],"_engine|DomIntl":[],"_engine|DomSegmenter":[],"_engine|DomSegments":[],"_engine|DomIterator":[],"_engine|DomIteratorResult":[],"_engine|DomSegment":[],"_engine|DomV8BreakIterator":[],"_engine|DomTextDecoder":[],"_engine|DomFinalizationRegistry":[],"_engine|JsFlutterViewOptions":[],"_engine|JsViewConstraints":[],"_engine|FlutterApp":[],"_engine|FlutterJS":[],"_engine|FlutterLoader":[],"_engine|FlutterEngineInitializer":[],"_engine|FlutterAppRunner":[],"_engine|RunAppFnParameters":[],"_engine|JSUint8Array1":[],"_engine|ImageDecoder":[],"_engine|ImageDecoderOptions":[],"_engine|DecodeResult":[],"_engine|DecodeOptions":[],"_engine|VideoFrame":[],"_engine|ImageTrackList":[],"_engine|ImageTrack":[],"_engine|SVGElement":[],"_engine|SVGGraphicsElement":[],"_engine|SVGSVGElement":[],"_engine|SVGClipPathElement":[],"_engine|SVGDefsElement":[],"_engine|SVGGeometryElement":[],"_engine|SVGPathElement":[],"_engine|SVGFilterElement":[],"_engine|SVGAnimatedLength":[],"_engine|SVGLength":[],"_engine|SVGAnimatedEnumeration":[],"_engine|SVGFEColorMatrixElement":[],"_engine|SVGFEFloodElement":[],"_engine|SVGFEBlendElement":[],"_engine|SVGFEImageElement":[],"_engine|SVGFECompositeElement":[],"_engine|SVGAnimatedString":[],"_engine|SVGAnimatedNumber":[],"_engine|SVGAnimatedNumberList":[],"_engine|SVGNumberList":[],"_engine|SVGNumber":[]}}'));
  dart.addRtiResources(_interceptors.LegacyJavaScriptObject, ["_interceptors|LegacyJavaScriptObject", "_engine|CanvasKit", "_engine|CanvasKitModule", "_engine|CanvasKitInitOptions", "_engine|ColorSpace", "_engine|SkWebGLContextOptions", "_engine|SkSurface", "_engine|SkGrContext", "_engine|SkFontSlantEnum", "_engine|SkFontSlant", "_engine|SkFontWeightEnum", "_engine|SkFontWeight", "_engine|SkAffinityEnum", "_engine|SkAffinity", "_engine|SkTextDirectionEnum", "_engine|SkTextDirection", "_engine|SkTextAlignEnum", "_engine|SkTextAlign", "_engine|SkTextHeightBehaviorEnum", "_engine|SkTextHeightBehavior", "_engine|SkRectHeightStyleEnum", "_engine|SkRectHeightStyle", "_engine|SkRectWidthStyleEnum", "_engine|SkRectWidthStyle", "_engine|SkVertexModeEnum", "_engine|SkVertexMode", "_engine|SkPointModeEnum", "_engine|SkPointMode", "_engine|SkClipOpEnum", "_engine|SkClipOp", "_engine|SkFillTypeEnum", "_engine|SkFillType", "_engine|SkPathOpEnum", "_engine|SkPathOp", "_engine|SkBlurStyleEnum", "_engine|SkBlurStyle", "_engine|SkStrokeCapEnum", "_engine|SkStrokeCap", "_engine|SkPaintStyleEnum", "_engine|SkPaintStyle", "_engine|SkBlendModeEnum", "_engine|SkBlendMode", "_engine|SkStrokeJoinEnum", "_engine|SkStrokeJoin", "_engine|SkTileModeEnum", "_engine|SkTileMode", "_engine|SkFilterModeEnum", "_engine|SkFilterMode", "_engine|SkMipmapModeEnum", "_engine|SkMipmapMode", "_engine|SkAlphaTypeEnum", "_engine|SkAlphaType", "_engine|SkColorTypeEnum", "_engine|SkColorType", "_engine|SkAnimatedImage", "_engine|SkImage", "_engine|SkShaderNamespace", "_engine|SkShader", "_engine|SkMaskFilterNamespace", "_engine|SkPaint", "_engine|CkFilterOptions", "_engine|_CkCubicFilterOptions", "_engine|_CkTransformFilterOptions", "_engine|SkMaskFilter", "_engine|SkColorFilterNamespace", "_engine|SkColorFilter", "_engine|SkImageFilterNamespace", "_engine|SkImageFilter", "_engine|SkPathNamespace", "_engine|_NativeType", "_engine|MallocObj", "_engine|SkFloat32List", "_engine|SkUint32List", "_engine|SkPath", "_engine|SkContourMeasureIter", "_engine|SkContourMeasure", "_engine|SkPictureRecorder", "_engine|SkCanvas", "_engine|SkPicture", "_engine|SkParagraphBuilderNamespace", "_engine|SkParagraphBuilder", "_engine|SkParagraphStyle", "_engine|SkParagraphStyleProperties", "_engine|SkTextStyle", "_engine|SkTextDecorationStyleEnum", "_engine|SkTextDecorationStyle", "_engine|SkTextBaselineEnum", "_engine|SkTextBaseline", "_engine|SkPlaceholderAlignmentEnum", "_engine|SkPlaceholderAlignment", "_engine|SkTextStyleProperties", "_engine|SkStrutStyleProperties", "_engine|SkFontStyle", "_engine|SkTextShadow", "_engine|SkFontFeature", "_engine|SkFontVariation", "_engine|SkTypeface", "_engine|SkFont", "_engine|SkFontMgr", "_engine|TypefaceFontProvider", "_engine|SkFontCollection", "_engine|SkLineMetrics", "_engine|SkGlyphClusterInfo", "_engine|SkRectWithDirection", "_engine|SkParagraph", "_engine|SkTextPosition", "_engine|SkTextRange", "_engine|SkVertices", "_engine|SkTonalColors", "_engine|SkFontMgrNamespace", "_engine|TypefaceFontProviderNamespace", "_engine|FontCollectionNamespace", "_engine|SkTypefaceFactory", "_engine|SkDeletable", "_engine|JsConstructor", "_engine|SkData", "_engine|SkImageInfo", "_engine|SkPartialImageInfo", "_engine|SkRuntimeEffect", "_engine|JsFlutterConfiguration", "_engine|DomObjectConstructor", "_engine|DomWindow", "_engine|DomEventTarget", "_engine|DomConsole", "_engine|DomNavigator", "_engine|DomDocument", "_engine|DomNode", "_engine|DomHTMLDocument", "_engine|DomEventListener", "_engine|DomEvent", "_engine|DomProgressEvent", "_engine|DomElement", "_engine|DomCSSStyleDeclaration", "_engine|DomHTMLElement", "_engine|DomHTMLMetaElement", "_engine|DomHTMLHeadElement", "_engine|DomHTMLBodyElement", "_engine|DomHTMLImageElement", "_engine|DomCanvasImageSource", "_engine|DomHTMLScriptElement", "_engine|DomHTMLDivElement", "_engine|DomHTMLSpanElement", "_engine|DomHTMLButtonElement", "_engine|DomHTMLParagraphElement", "_engine|DomHTMLStyleElement", "_engine|DomPerformance", "_engine|DomPerformanceEntry", "_engine|DomPerformanceMeasure", "_engine|DomCanvasElement", "_engine|WebGLContext", "_engine|DomCanvasRenderingContext2D", "_engine|DomCanvasRenderingContextWebGl", "_engine|DomCanvasRenderingContextBitmapRenderer", "_engine|DomImageData", "_engine|DomImageBitmap", "_engine|DomCanvasPattern", "_engine|DomCanvasGradient", "_engine|DomXMLHttpRequestEventTarget", "_engine|DomResponse", "_engine|DomHeaders", "_engine|_DomReadableStream", "_engine|_DomStreamReader", "_engine|_DomStreamChunk", "_engine|DomCharacterData", "_engine|DomText", "_engine|DomTextMetrics", "_engine|DomException", "_engine|DomRectReadOnly", "_engine|DomRect", "_engine|DomFontFace", "_engine|DomFontFaceSet", "_engine|DomVisualViewport", "_engine|DomHTMLTextAreaElement", "_engine|DomClipboard", "_engine|DomUIEvent", "_engine|DomKeyboardEvent", "_engine|DomHistory", "_engine|DomLocation", "_engine|DomPopStateEvent", "_engine|DomURL", "_engine|DomBlob", "_engine|DomMutationObserver", "_engine|DomMutationRecord", "_engine|DomMediaQueryList", "_engine|DomMediaQueryListEvent", "_engine|DomPath2D", "_engine|DomInputEvent", "_engine|DomFocusEvent", "_engine|DomMouseEvent", "_engine|DomPointerEvent", "_engine|DomWheelEvent", "_engine|DomTouchEvent", "_engine|DomTouch", "_engine|DomCompositionEvent", "_engine|DomHTMLInputElement", "_engine|DomTokenList", "_engine|DomHTMLFormElement", "_engine|DomHTMLLabelElement", "_engine|DomOffscreenCanvas", "_engine|DomFileReader", "_engine|DomDocumentFragment", "_engine|DomShadowRoot", "_engine|DomStyleSheet", "_engine|DomCSSStyleSheet", "_engine|DomCSSRule", "_engine|DomScreen", "_engine|DomScreenOrientation", "_engine|DomWebSocket", "_engine|DomMessageEvent", "_engine|DomMessageEventSource", "_engine|DomMessageEventLocation", "_engine|DomHTMLIFrameElement", "_engine|DomMessagePort", "_engine|DomMessageChannel", "_engine|DomResizeObserver", "_engine|DomResizeObserverObserveOptions", "_engine|DomResizeObserverEntry", "_engine|DomTrustedTypePolicyFactory", "_engine|DomTrustedTypePolicyOptions", "_engine|DomTrustedTypePolicy", "_engine|DomTrustedScriptURL", "_engine|_DomList", "_engine|_DomTouchList", "_engine|DomSymbol", "_engine|DomIntl", "_engine|DomSegmenter", "_engine|DomSegments", "_engine|DomIterator", "_engine|DomIteratorResult", "_engine|DomSegment", "_engine|DomV8BreakIterator", "_engine|DomTextDecoder", "_engine|DomFinalizationRegistry", "_engine|JsFlutterViewOptions", "_engine|JsViewConstraints", "_engine|FlutterApp", "_engine|FlutterJS", "_engine|FlutterLoader", "_engine|FlutterEngineInitializer", "_engine|FlutterAppRunner", "_engine|RunAppFnParameters", "_engine|JSUint8Array1", "_engine|ImageDecoder", "_engine|ImageDecoderOptions", "_engine|DecodeResult", "_engine|DecodeOptions", "_engine|VideoFrame", "_engine|ImageTrackList", "_engine|ImageTrack", "_engine|SVGElement", "_engine|SVGGraphicsElement", "_engine|SVGSVGElement", "_engine|SVGClipPathElement", "_engine|SVGDefsElement", "_engine|SVGGeometryElement", "_engine|SVGPathElement", "_engine|SVGFilterElement", "_engine|SVGAnimatedLength", "_engine|SVGLength", "_engine|SVGAnimatedEnumeration", "_engine|SVGFEColorMatrixElement", "_engine|SVGFEFloodElement", "_engine|SVGFEBlendElement", "_engine|SVGFEImageElement", "_engine|SVGFECompositeElement", "_engine|SVGAnimatedString", "_engine|SVGAnimatedNumber", "_engine|SVGAnimatedNumberList", "_engine|SVGNumberList", "_engine|SVGNumber"]);
  dart.trackLibraries("dart_sdk", {
    "dart:_ddc_only": _ddc_only,
    "dart:_runtime": dart,
    "dart:_js_shared_embedded_names": _js_shared_embedded_names,
    "dart:_recipe_syntax": _recipe_syntax,
    "dart:_rti": dart_rti,
    "dart:_debugger": _debugger,
    "dart:_foreign_helper": _foreign_helper,
    "dart:_interceptors": _interceptors,
    "dart:_internal": _internal,
    "dart:_isolate_helper": _isolate_helper,
    "dart:_js_annotations": _js_annotations,
    "dart:_js_helper": _js_helper,
    "dart:_js_names": _js_names,
    "dart:_js_primitives": _js_primitives,
    "dart:_js_types": _js_types,
    "dart:_metadata": _metadata,
    "dart:_native_typed_data": _native_typed_data,
    "dart:async": async,
    "dart:collection": collection,
    "dart:convert": convert,
    "dart:developer": developer,
    "dart:io": io,
    "dart:isolate": isolate,
    "dart:js": js,
    "dart:js_interop": js_interop,
    "dart:js_interop_unsafe": js_interop_unsafe,
    "dart:js_util": js_util,
    "dart:math": math,
    "dart:typed_data": typed_data,
    "dart:indexed_db": indexed_db,
    "dart:html": html$,
    "dart:html_common": html_common,
    "dart:svg": svg$,
    "dart:web_audio": web_audio,
    "dart:web_gl": web_gl,
    "dart:core": core,
    "dart:ui": ui,
    "dart:ui_web": ui_web,
    "dart:_engine": _engine,
    "dart:_skwasm_stub": _skwasm_stub,
    "dart:_web_unicode": _web_unicode,
    "dart:_web_locale_keymap": _web_locale_keymap,
    "dart:_http": _http,
    "dart:_web_test_fonts": _web_test_fonts
  }, {
    "dart:_runtime": ["utils.dart", "classes.dart", "rtti.dart", "types.dart", "records.dart", "errors.dart", "operations.dart", "debugger.dart"],
    "dart:_debugger": ["profile.dart"],
    "dart:_interceptors": ["js_array.dart", "js_number.dart", "js_string.dart"],
    "dart:_internal": ["async_cast.dart", "bytes_builder.dart", "cast.dart", "errors.dart", "iterable.dart", "list.dart", "linked_list.dart", "lowering.dart", "patch.dart", "print.dart", "sort.dart", "symbol.dart"],
    "dart:_js_helper": ["annotations.dart", "linked_hash_map.dart", "identity_hash_map.dart", "custom_hash_map.dart", "native_helper.dart", "regexp_helper.dart", "string_helper.dart", "js_rti.dart"],
    "dart:async": ["async_error.dart", "broadcast_stream_controller.dart", "deferred_load.dart", "future.dart", "future_extensions.dart", "future_impl.dart", "schedule_microtask.dart", "stream.dart", "stream_controller.dart", "stream_impl.dart", "stream_pipe.dart", "stream_transformers.dart", "timer.dart", "zone.dart"],
    "dart:collection": ["collections.dart", "hash_map.dart", "hash_set.dart", "iterable.dart", "iterator.dart", "linked_hash_map.dart", "linked_hash_set.dart", "linked_list.dart", "list.dart", "maps.dart", "queue.dart", "set.dart", "splay_tree.dart"],
    "dart:convert": ["ascii.dart", "base64.dart", "byte_conversion.dart", "chunked_conversion.dart", "codec.dart", "converter.dart", "encoding.dart", "html_escape.dart", "json.dart", "latin1.dart", "line_splitter.dart", "string_conversion.dart", "utf.dart"],
    "dart:developer": ["extension.dart", "http_profiling.dart", "profiler.dart", "service.dart", "timeline.dart"],
    "dart:io": ["common.dart", "data_transformer.dart", "directory.dart", "directory_impl.dart", "embedder_config.dart", "eventhandler.dart", "file.dart", "file_impl.dart", "file_system_entity.dart", "io_resource_info.dart", "io_sink.dart", "io_service.dart", "link.dart", "namespace_impl.dart", "network_profiling.dart", "overrides.dart", "platform.dart", "platform_impl.dart", "process.dart", "secure_server_socket.dart", "secure_socket.dart", "security_context.dart", "service_object.dart", "socket.dart", "stdio.dart", "string_transformer.dart", "sync_socket.dart"],
    "dart:isolate": ["capability.dart"],
    "dart:math": ["point.dart", "random.dart", "rectangle.dart"],
    "dart:html_common": ["css_class_set.dart", "conversions.dart", "conversions_dart2js.dart", "device.dart", "filtered_element_list.dart", "lists.dart"],
    "dart:core": ["bigint_patch.dart", "annotations.dart", "bigint.dart", "bool.dart", "comparable.dart", "date_time.dart", "double.dart", "duration.dart", "enum.dart", "errors.dart", "exceptions.dart", "function.dart", "identical.dart", "int.dart", "invocation.dart", "iterable.dart", "iterator.dart", "list.dart", "map.dart", "null.dart", "num.dart", "object.dart", "pattern.dart", "print.dart", "record.dart", "regexp.dart", "set.dart", "sink.dart", "stacktrace.dart", "stopwatch.dart", "string.dart", "string_buffer.dart", "string_sink.dart", "symbol.dart", "type.dart", "uri.dart", "weak.dart"],
    "dart:ui": ["annotations.dart", "canvas.dart", "channel_buffers.dart", "compositing.dart", "geometry.dart", "hash_codes.dart", "initialization.dart", "key.dart", "lerp.dart", "math.dart", "natives.dart", "painting.dart", "path.dart", "path_metrics.dart", "platform_dispatcher.dart", "platform_isolate.dart", "pointer.dart", "semantics.dart", "text.dart", "tile_mode.dart", "window.dart"],
    "dart:ui_web": ["ui_web/asset_manager.dart", "ui_web/benchmarks.dart", "ui_web/browser_detection.dart", "ui_web/flutter_views_proxy.dart", "ui_web/images.dart", "ui_web/initialization.dart", "ui_web/navigation/platform_location.dart", "ui_web/navigation/url_strategy.dart", "ui_web/platform_view_registry.dart", "ui_web/plugins.dart", "ui_web/testing.dart"],
    "dart:_engine": ["engine/alarm_clock.dart", "engine/app_bootstrap.dart", "engine/browser_detection.dart", "engine/canvas_pool.dart", "engine/canvaskit/canvas.dart", "engine/canvaskit/canvaskit_api.dart", "engine/canvaskit/canvaskit_canvas.dart", "engine/canvaskit/color_filter.dart", "engine/canvaskit/display_canvas_factory.dart", "engine/canvaskit/embedded_views.dart", "engine/canvaskit/fonts.dart", "engine/canvaskit/image.dart", "engine/canvaskit/image_filter.dart", "engine/canvaskit/image_wasm_codecs.dart", "engine/canvaskit/image_web_codecs.dart", "engine/canvaskit/layer.dart", "engine/canvaskit/layer_scene_builder.dart", "engine/canvaskit/layer_tree.dart", "engine/canvaskit/mask_filter.dart", "engine/canvaskit/multi_surface_rasterizer.dart", "engine/canvaskit/n_way_canvas.dart", "engine/canvaskit/native_memory.dart", "engine/canvaskit/offscreen_canvas_rasterizer.dart", "engine/canvaskit/overlay_scene_optimizer.dart", "engine/canvaskit/painting.dart", 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  // Exports:
  exports.dart = dart;
  exports._ddc_only = _ddc_only;
  exports._js_shared_embedded_names = _js_shared_embedded_names;
  exports._recipe_syntax = _recipe_syntax;
  exports.dart_rti = dart_rti;
  exports._debugger = _debugger;
  exports._foreign_helper = _foreign_helper;
  exports._interceptors = _interceptors;
  exports._internal = _internal;
  exports._isolate_helper = _isolate_helper;
  exports._js_annotations = _js_annotations;
  exports._js_helper = _js_helper;
  exports._js_names = _js_names;
  exports._js_primitives = _js_primitives;
  exports._js_types = _js_types;
  exports._metadata = _metadata;
  exports._native_typed_data = _native_typed_data;
  exports.async = async;
  exports.collection = collection;
  exports.convert = convert;
  exports.developer = developer;
  exports.io = io;
  exports.isolate = isolate;
  exports.js = js;
  exports.js_interop = js_interop;
  exports.js_interop_unsafe = js_interop_unsafe;
  exports.js_util = js_util;
  exports.math = math;
  exports.typed_data = typed_data;
  exports.indexed_db = indexed_db;
  exports.html = html$;
  exports.html_common = html_common;
  exports.svg = svg$;
  exports.web_audio = web_audio;
  exports.web_gl = web_gl;
  exports.core = core;
  exports.ui = ui;
  exports.ui_web = ui_web;
  exports._engine = _engine;
  exports._skwasm_stub = _skwasm_stub;
  exports._web_unicode = _web_unicode;
  exports._web_locale_keymap = _web_locale_keymap;
  exports._http = _http;
  exports._web_test_fonts = _web_test_fonts;
  exports.dartx = dartx;
}), {dartSize: 8275631, sourceMapSize: 1929350});

//# sourceMappingURL=dart_sdk.js.map
